diff options
| author |   Ole Troan <ot@cisco.com> | 2016-06-24 20:10:30 +0200 |
|---|---|---|
| committer |   Dave Barach <openvpp@barachs.net> | 2016-06-27 15:04:00 +0000 |
| commit | ea3e1fc8754d7ebeca85ecc448b263f6ccb6ae6f (patch) | |
| tree | 5aa3322e4bf45f2b621a5b62f58fdc8bd4d7bca1 /plugins/vcgn-plugin | |
| parent | aa6920e0a80d8271be1dda59f613a1d2b0e1d3e6 (diff) | |
Plugins: Clean up the plugin directory so that each plugin has its own
directory and GNU autotools setup.
Change-Id: I6c59d1297389c9413db0c0b9bdf3b759080bf1b8
Signed-off-by: Ole Troan <ot@cisco.com>
Diffstat (limited to 'plugins/vcgn-plugin')
69 files changed, 36591 insertions, 0 deletions
diff --git a/plugins/vcgn-plugin/Makefile.am b/plugins/vcgn-plugin/Makefile.am new file mode 100644 index 00000000..f9705d05 --- /dev/null +++ b/plugins/vcgn-plugin/Makefile.am @@ -0,0 +1,99 @@ +# Copyright (c) 2015 Cisco and/or its affiliates. +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at: +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +AUTOMAKE_OPTIONS = foreign subdir-objects + +AM_CFLAGS = -Wall -I@TOOLKIT_INCLUDE@ + +######################################## +# Virtual Carrier Grade NAT +######################################## + +libvcgn_plugin_la_SOURCES = \ + vcgn/cnat_bulk_port.c \ + vcgn/cnat_config.c \ + vcgn/cnat_db_scanner.c \ + vcgn/cnat_db_v2.c \ + vcgn/cnat_debug_msg_handler.c \ + vcgn/cnat_cli_handler.c \ + vcgn/cnat_global.c \ + vcgn/cnat_ipv4_udp_inside_input.c \ + vcgn/cnat_ipv4_udp_inside_input_exceptions.c \ + vcgn/cnat_ipv4_udp_outside_input.c \ + vcgn/cnat_ipv4_tcp_inside_input.c \ + vcgn/cnat_ipv4_tcp_inside_input_exceptions.c \ + vcgn/cnat_ipv4_tcp_outside_input.c \ + vcgn/cnat_ipv4_icmp_query_inside_input.c \ + vcgn/cnat_ipv4_icmp_query_inside_input_exception.c \ + vcgn/cnat_ipv4_icmp_query_outside_input.c \ + vcgn/cnat_ipv4_icmp_error_inside_input.c \ + vcgn/cnat_ipv4_icmp_error_outside_input.c \ + vcgn/cnat_logging.c \ + vcgn/cnat_ports.c \ + vcgn/cnat_util.c \ + vcgn/cnat_show.c \ + vcgn/cnat_syslog.c \ + vcgn/cnat_v4_functions.c \ + vcgn/index_list.c \ + vcgn/spp_platform_trace_log.c \ + vcgn/vcgn_classify.c + +nobase_include_HEADERS = \ + vcgn/cgn_bitmap.h \ + vcgn/cgse_defs.h \ + vcgn/cnat_bulk_port_defs.h \ + vcgn/cnat_bulk_port.h \ + vcgn/cnat_cli.h \ + vcgn/cnat_common_api.h \ + vcgn/cnat_config_api.h \ + vcgn/cnat_config.h \ + vcgn/cnat_db.h \ + vcgn/cnat_global.h \ + vcgn/cnat_ipv4_icmp.h \ + vcgn/cnat_ipv4_udp.h \ + vcgn/cnat_log_api.h \ + vcgn/cnat_log_common.h \ + vcgn/cnat_logging.h \ + vcgn/cnat_pcp_server.h \ + vcgn/cnat_ports.h \ + vcgn/cnat_show_api.h \ + vcgn/cnat_show_response.h \ + vcgn/cnat_syslog.h \ + vcgn/cnat_v4_ftp_alg.h \ + vcgn/cnat_v4_functions.h \ + vcgn/cnat_v4_pptp_alg.h \ + vcgn/cnat_va_db.h \ + vcgn/dslite_db.h \ + vcgn/dslite_defs.h \ + vcgn/index_list.h \ + vcgn/nat64_db.h \ + vcgn/nat64_defs.h \ + vcgn/nat64_tcp_sm.h \ + vcgn/platform_common.h \ + vcgn/platform_common_override.h \ + vcgn/spp_ctx.h \ + vcgn/spp_platform_trace_log.h \ + vcgn/spp_timers.h \ + vcgn/tcp_header_definitions.h \ + vcgn/vcgn_db.h + +libvcgn_plugin_la_LDFLAGS = -module + +lib_LTLIBRARIES = libvcgn_plugin.la + +if WITH_PLUGIN_TOOLKIT +install-data-hook: + mkdir /usr/lib/vpp_plugins || true + mkdir /usr/lib/vpp_api_test_plugins || true + cp -L $(prefix)/lib/libvcgn_plugin.so /usr/lib/vpp_plugins +endif diff --git a/plugins/vcgn-plugin/configure.ac b/plugins/vcgn-plugin/configure.ac new file mode 100644 index 00000000..ced22669 --- /dev/null +++ b/plugins/vcgn-plugin/configure.ac @@ -0,0 +1,17 @@ +AC_INIT(vcgn_plugin, 1.0) +LT_INIT +AM_INIT_AUTOMAKE + +AM_PROG_AS +AC_PROG_CC +AM_PROG_CC_C_O + +AC_ARG_WITH(plugin-toolkit, + AC_HELP_STRING([--with-plugin-toolkit], + [build using the vpp toolkit]), + [with_plugin_toolkit=${prefix}/include], + [with_plugin_toolkit=.]) + +AC_SUBST(TOOLKIT_INCLUDE,[${with_plugin_toolkit}]) +AM_CONDITIONAL(WITH_PLUGIN_TOOLKIT, test "$with_plugin_toolkit" != ".") +AC_OUTPUT([Makefile]) diff --git a/plugins/vcgn-plugin/vcgn/README b/plugins/vcgn-plugin/vcgn/README new file mode 100644 index 00000000..9b903967 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/README @@ -0,0 +1,100 @@ + ================================= + CARRIER GRADE NAT - NAT44 README + ================================= + +What is implemented: +==================== +* NAT44 UDP, TCP, ICMP protocols +* Show and config commands for various parameters for the same +* NF9 logging is implemented but is not tested + +What is not implemented: +========================= +* TCP MSS +* TCP refresh direction +* Static port forwarding +* Syslog support +* Destination based logging or session logging +* None of the ALGs +* Performance optimization +* Binary APIs, suitable for configuring the feature from netconf/restconf/yang +* Support for VLANs + +Setup +===== + + +--------------+ ++------------+ GEb/0/0 | | +| Tester +-------------->+ vCGN/vPE-f | +| +<--------------+ VM in UCS | ++------------+ GE13/0/0 | | + +--------------+ + +Configure Interfaces and add routes in vPE-f +============================================= +set int ip address GigabitEthernetb/0/0 10.4.5.2/24 +set int state GigabitEthernetb/0/0 up +set int ip address GigabitEthernet13/0/0 20.4.5.2/24 +set int state GigabitEthernet13/0/0 up +ip route add 4.4.4.0/24 via GigabitEthernet13/0/0 +ip route add 1.2.3.0/24 via GigabitEthernetb/0/0 show ip fib + +Configure vCGN NAT44 for UDP/TCP/ICMP +======================================= +set vcgn inside GigabitEthernetb/0/0 outside GigabitEthernet13/0/0 +set vcgn port limit 65535 set vcgn dynamic port start 5641 +set vcgn map 10.1.1.0 - 10.1.1.31 set vcgn tcp timeout active 65535 init 65535 +set vcgn udp timeout active 65535 init 65535 set vcgn icmp timeout 65535 + +Set ARP entries for CGN to Tester +================================== +set ip arp GigabitEthernet13/0/0 4.4.4.4 11:22:33:44:55:00 +set ip arp GigabitEthernetb/0/0 1.2.3.0 11:22:33:44:55:10 +set ip arp GigabitEthernetb/0/0 1.2.3.1 11:22:33:44:55:12 +set ip arp GigabitEthernetb/0/0 1.2.3.2 11:22:33:44:55:13 +set ip arp GigabitEthernetb/0/0 1.2.3.3 11:22:33:44:55:14 +set ip arp GigabitEthernetb/0/0 1.2.3.4 11:22:33:4e:55:11 +set ip arp GigabitEthernetb/0/0 1.2.3.5 11:22:33:44:55:15 +set ip arp GigabitEthernetb/0/0 1.2.3.6 11:22:33:44:55:16 +set ip arp GigabitEthernetb/0/0 1.2.3.7 11:22:33:44:55:17 +set ip arp GigabitEthernetb/0/0 1.2.3.8 11:22:33:44:55:18 +set ip arp GigabitEthernetb/0/0 1.2.3.9 11:22:33:44:55:19 +set ip arp GigabitEthernetb/0/0 1.2.3.10 11:22:33:44:55:1a +set ip arp GigabitEthernetb/0/0 1.2.3.11 11:22:33:44:55:1b +set ip arp GigabitEthernetb/0/0 1.2.3.12 11:22:33:44:55:1c +set ip arp GigabitEthernetb/0/0 1.2.3.13 11:22:33:44:55:1d +set ip arp GigabitEthernetb/0/0 1.2.3.14 11:22:33:44:55:1e +set ip arp GigabitEthernetb/0/0 1.2.3.15 11:22:33:44:55:1f +set ip arp GigabitEthernetb/0/0 1.2.3.16 11:22:33:44:50:01 +set ip arp GigabitEthernetb/0/0 1.2.3.17 11:22:33:44:51:01 +set ip arp GigabitEthernetb/0/0 1.2.3.18 11:22:33:44:52:01 +set ip arp GigabitEthernetb/0/0 1.2.3.19 11:22:33:44:53:01 +set ip arp GigabitEthernetb/0/0 1.2.3.20 11:22:33:44:54:02 +set ip arp GigabitEthernetb/0/0 1.2.3.21 11:22:33:44:55:01 +set ip arp GigabitEthernetb/0/0 1.2.3.22 11:22:33:44:56:02 +set ip arp GigabitEthernetb/0/0 1.2.3.23 11:22:33:44:57:00 +set ip arp GigabitEthernetb/0/0 1.2.3.24 11:22:33:44:58:02 +set ip arp GigabitEthernetb/0/0 1.2.3.25 11:22:33:44:59:03 +set ip arp GigabitEthernetb/0/0 1.2.3.26 11:22:33:44:5a:01 +set ip arp GigabitEthernetb/0/0 1.2.3.27 11:22:33:44:5b:02 +set ip arp GigabitEthernetb/0/0 1.2.3.28 11:22:33:44:5c:03 +set ip arp GigabitEthernetb/0/0 1.2.3.29 11:22:33:44:5d:04 +set ip arp GigabitEthernetb/0/0 1.2.3.30 11:22:33:44:5e:05 +set ip arp GigabitEthernetb/0/0 1.2.3.31 11:22:33:44:5f:06 + + +Show commands +============= +show vcgn config +show vcgn statistics +show node counters +show interface + +Show commands to show translations +================================== +show vcgn inside-translation protocol tcp inside-addr 1.2.3.4 start-port 5641 end-port 5645 +show vcgn outside-translation protocol tcp outside-addr 10.1.1.31 start-port 7000 end-port 8000 +show vcgn inside-translation protocol icmp inside-addr 1.2.3.4 start-port 7000 end-port 8000 +show vcgn outside-translation protocol icmp outside-addr 10.1.1.31 start-port 7000 end-port 8000 + + diff --git a/plugins/vcgn-plugin/vcgn/cgn_bitmap.h b/plugins/vcgn-plugin/vcgn/cgn_bitmap.h new file mode 100644 index 00000000..6c46b75a --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cgn_bitmap.h @@ -0,0 +1,133 @@ +/* + * Copyright (c) 2015 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +/* + * Modifications to this file + * Copyright (c) 2006-2009 by cisco Systems, Inc. + * All rights reserved. + */ + +/* + Copyright (c) 2001, 2002, 2003, 2005 Eliot Dresselhaus + + Permission is hereby granted, free of charge, to any person obtaining + a copy of this software and associated documentation files (the + "Software"), to deal in the Software without restriction, including + without limitation the rights to use, copy, modify, merge, publish, + distribute, sublicense, and/or sell copies of the Software, and to + permit persons to whom the Software is furnished to do so, subject to + the following conditions: + + The above copyright notice and this permission notice shall be + included in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE + LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION + OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +*/ + +#ifndef __CGN_BITMAP_H__ +#define __CGN_BITMAP_H__ + +/* Bitmaps built as vectors of machine words. */ + +#include <string.h> +#include <vlib/vlib.h> +#include <vnet/vnet.h> +#include <vppinfra/vec.h> +#include <vppinfra/random.h> + +#define clib_bitmap_dup(v) vec_dup(v) +#define clib_bitmap_free(v) vec_free(v) +#define clib_bitmap_bytes(v) vec_bytes(v) +#define clib_bitmap_zero(v) vec_zero(v) + +/* Allocate bitmap with given number of bits. */ +#define clib_bitmap_alloc(v,n_bits) \ + v = vec_new (uword, ((n_bits) + BITS (uword) - 1) / BITS (uword)) + +/* Sets given bit. Returns old value. */ +static inline uword +cgn_clib_bitmap_set_no_check (uword * a, uword i) +{ + uword i0 = i / BITS (a[0]); + uword bit = (uword) 1 << (i % BITS (a[0])); + uword ai; + +/* ASSERT (i0 < vec_len (a)); */ + ai = a[i0]; + a[i0] = ai | bit; + + return (ai & bit) != 0; +} + +/* Clears given bit. Returns old value. */ +static inline +uword cgn_clib_bitmap_clear_no_check (uword * a, uword i) +{ + uword i0 = i / BITS (a[0]); + uword bit = (uword) 1 << (i % BITS (a[0])); + uword ai; + +/* ASSERT (i0 < vec_len (a)); */ + ai = a[i0]; + a[i0] = ai & ~bit; + + return (ai & bit) != 0; +} + +/* Gets num_bits from ai start at start. assume that all bits are + * in the same uword. + */ +static inline uword cgn_clib_bitmap_get_bits (uword *ai, u16 start, + unsigned char num_bits) +{ + uword i0 = start / BITS (ai[0]); + uword i1 = start % BITS (ai[0]); + uword result = ai[i0] >> i1; + if(num_bits >= BITS(ai[0])) return result; + /* Else, we have to trim the bits */ + result = result & (((uword)1 << num_bits) - 1); + return result; +} + +/* Check if all of the bits from start to numb_bits are avaiable */ +static inline uword cgn_clib_bitmap_check_if_all (uword *ai, u16 start, + i16 num_bits) +{ + /* Now check if any bits are zero.. if yes, return false */ + uword bitmask; + if(num_bits >= BITS(ai[0])) { + /* assume that its going to be multiples of BUTS(ai[0]) */ + uword i0 = start / BITS (ai[0]); + bitmask = ~0; /* set all bits to 1 */ + do { + if(ai[i0] ^ bitmask) return 0; + num_bits = num_bits - BITS (ai[0]); + i0++; + } while (num_bits > 0); + return 1; + } + else { + uword result = cgn_clib_bitmap_get_bits (ai, start, num_bits); + bitmask = ((uword)1 << num_bits) -1; /* set only num_bits */ + return (!(result ^ bitmask)); + } +} + +#endif diff --git a/plugins/vcgn-plugin/vcgn/cgse_defs.h b/plugins/vcgn-plugin/vcgn/cgse_defs.h new file mode 100644 index 00000000..08255875 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cgse_defs.h @@ -0,0 +1,88 @@ +/* + *------------------------------------------------------------------ + * cgse_defs.h - CGSE specific definiitions + * + * Copyright (c) 2007-2013 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ + +#ifndef __CGSE_DEFS_H__ +#define __CGSE_DEFS_H__ + +#include "spp_platform_common.h" +#include <cnat_cli.h> + + +#define CGSE_SVI_TYPE_CNAT 1 +#define CGSE_SVI_TYPE_XLAT 2 +#define CGSE_SVI_TYPE_NAT64_STATEFUL 3 +#define CGSE_SVI_TYPE_V6RD 4 +#define CGSE_SVI_TYPE_INFRA 5 +#define CGSE_SVI_TYPE_DS_LITE 7 +#define CGSE_SVI_TYPE_MAPE 9 + +#define CGSE_SET_TX_PKT_TYPE(type) PLATFORM_SET_CTX_RU_TX_PKT_TYPE(ctx, type) + +#define CGSE_INVALID_UIDX 0xffff /*invalid svi app uidb index */ +#define CGSE_INVALID_VRFID 0xffffffff /*invalid vrf id */ + +#define CGSE_VRF_MASK 0x3fff +#define CGSE_MAX_VRFMAP_ENTRIES (CGSE_VRF_MASK + 1) + +#define CGSE_VRFMAP_ENTRY_INVALID 0xffff + + +#define CGSE_INVALID_CGSE_ID (0) + +#define CGSE_TABLE_ENTRY_DELETED 0 +#define CGSE_TABLE_ENTRY_ACTIVE 1 +#define CGSE_TABLE_ENTRY_DORMANT 2 +#define CGSE_TABLE_ENTRY_INVALID_UIDB 3 + + +#define CGSE_CONFIG_HANDLER_DEBUG_PRINTF1(level, a) \ + if (cgse_config_debug_level > level) printf(a); + +#define CGSE_CONFIG_HANDLER_DEBUG_PRINTF2(level, a, b) \ + if (cgse_config_debug_level > level) printf(a, b); + +#define CGSE_CONFIG_HANDLER_DEBUG_PRINTF3(level, a, b, c) \ + if (cgse_config_debug_level > level) printf(a, b, c); + +#define CGSE_CONFIG_HANDLER_DEBUG_PRINTF4(level, a, b, c, d) \ + if (cgse_config_debug_level > level) printf(a, b, c, d); + +#define CGSE_CONFIG_HANDLER_DEBUG_PRINTF5(level, a, b, c, d, e) \ + if (cgse_config_debug_level > level) printf(a, b, c, d, e); + +#define CGSE_CONFIG_HANDLER_DEBUG_PRINTF6(level, a, b, c, d, e, f) \ + if (cgse_config_debug_level > level) printf(a, b, c, d, e, f); + +#define CGSE_CONFIG_HANDLER_DEBUG_PRINTF7(level, a, b, c, d, e, f, g) \ + if (cgse_config_debug_level > level) printf(a, b, c, d, e, f, g); + +#define CGSE_CONFIG_HANDLER_DEBUG_PRINTF8(level, a, b, c, d, e, f, g, h) \ + if (cgse_config_debug_level > level) printf(a, b, c, d, e, f, g, h); + +#define CGSE_CONFIG_HANDLER_DEBUG_PRINTF9(level, a, b, c, d, e, f, g, h, i) \ + if (cgse_config_debug_level > level) printf(a, b, c, d, e, f, g, h, i); + +extern u16 *cgse_uidb_index_cgse_id_mapping_ptr; + +#define CGSE_ADD_UIDB_INDEX_CGSE_ID_MAPPING(uidb_index, cgse_id) \ + *(cgse_uidb_index_cgse_id_mapping_ptr + uidb_index) = cgse_id; + +extern u8 my_instance_number; + +#endif diff --git a/plugins/vcgn-plugin/vcgn/cnat_bulk_port.c b/plugins/vcgn-plugin/vcgn/cnat_bulk_port.c new file mode 100644 index 00000000..d8894eb8 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_bulk_port.c @@ -0,0 +1,964 @@ +/* + *------------------------------------------------------------------ + * cnat_bulk_ports.c - wrappers for bulk port allocation + * + * Copyright (c) 2011-2013 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ + + +#include <vlib/vlib.h> +#include <vnet/vnet.h> +#include <vppinfra/error.h> +#include <vnet/buffer.h> +#include <vppinfra/vec.h> +#include <vppinfra/hash.h> +#include <vppinfra/pool.h> +#include <vppinfra/bitmap.h> + +#include "cnat_db.h" +#include "cnat_config.h" +#include "cnat_global.h" +#include "cnat_logging.h" +#include "spp_timers.h" +#include "platform_common.h" +#include "cgn_bitmap.h" +#include "spp_platform_trace_log.h" +#include "cnat_ports.h" + +#ifndef NO_BULK_LOGGING + +#define PORT_TO_CACHE(y, z) ((y)/(z)) +/* The last bit (MSB) is used to indicate whether the cache entry is full */ +#define CACHE_TO_PORT(x, z) (((x)& 0x7FFF) * (z)) +#define IS_CACHE_ENTRY_FULL(x) ((x) & 0x8000) +#define MARK_CACHE_ENTRY_AS_FULL(x) ((x) = ((x) | 0x8000)) +#define UNMARK_CACHE_ENTRY_AS_FULL(x) ((x) = ((x) & 0x7FFF)) +#define CACHE_ENTRY_WITHOUT_FULL_STAT(x) ((x) & 0x7FFF) + + +#define NUM_BULK_CHECK 128 /* max number of previous chache to check. + * somewhat orbirtrary.. assume 64 as bulk size.. can handle up + * to 128*64 ports allocated by a single subscriber */ + +/* #define DEBUG_BULK_PORT 1 */ +/* #define DEBUG_BULK_PORT_DETAIL 1 */ +#define HAVE_BULK_PORT_STATS 1 + +#ifdef HAVE_BULK_PORT_STATS +static uword bulk_cache_hit_count; +static uword bulk_port_use_count; +static uword bulk_port_alloc_count; +static uword mapped_port_alloc_count; +#endif /* HAVE_BULK_PORT_STATS */ + +static u32 bulk_port_rand_across; + +void show_bulk_port_allocation(u16 in_vrfid, u32 inside_ip) +{ + cnat_db_key_bucket_t u_ki; + cnat_user_db_entry_t *udb; + int i; + u32 head; + cnat_main_db_entry_t *db = NULL; + i16 printed_so_far = 0; /* entries printed so far */ + u16 prev_bulks[NUM_BULK_CHECK]; + cnat_vrfmap_t *my_vrfmap = 0; + cnat_vrfmap_t *vrfmap = 0; + bulk_alloc_size_t bulk_size; + + u_ki.k.k.vrf = in_vrfid; + u_ki.k.k.ipv4 = inside_ip; + u_ki.k.k.port = 0; + + PLATFORM_DEBUG_PRINT("Searching for user %x in invrf %d\n", + inside_ip, in_vrfid); + udb = cnat_user_db_lookup_entry(&u_ki); + if(!udb) { + PLATFORM_DEBUG_PRINT("No such user\n"); return; + } + + pool_foreach (vrfmap, cnat_map_by_vrf, ({ + if(vrfmap->i_vrf == in_vrfid) { + my_vrfmap = vrfmap; + break; + }})); + + if(!my_vrfmap) { + PLATFORM_DEBUG_PRINT("Vrf map not found\n"); + return; + } + bulk_size = BULKSIZE_FROM_VRFMAP(my_vrfmap); + + if(bulk_size == BULK_ALLOC_SIZE_NONE) { + PLATFORM_DEBUG_PRINT("Bulk allocation not enabled\n"); + return; + } + + PLATFORM_DEBUG_PRINT("\nBulk cache for subscriber 0x%x: ", inside_ip); + for(i=0; i < BULK_RANGE_CACHE_SIZE; i++) { + PLATFORM_DEBUG_PRINT("%d , ", + CACHE_TO_PORT(udb->bulk_port_range_cache[i], bulk_size)); + } + PLATFORM_DEBUG_PRINT("\nNon cached bulk allocation for subscriber 0x%x:\n", + inside_ip); + ASSERT(udb); + memset(prev_bulks, 0,sizeof(prev_bulks)); + + head = udb->translation_list_head_index; + if(PREDICT_FALSE(head == EMPTY)) { + return; + } + db = cnat_main_db + head; + while (1) { + /* skip static ports - static ports may not belong to bulk pool*/ + if(db->out2in_key.k.port < cnat_static_port_range) goto next_entry; + + u16 bm_index = PORT_TO_CACHE(db->out2in_key.k.port, bulk_size); + + /*Check if we have already tested this bulk */ + for(i=0; i < printed_so_far; i++) { + if(prev_bulks[i] == bm_index) goto next_entry; + } + + /*Check if this base port is already part of cache */ + for(i=0; i < BULK_RANGE_CACHE_SIZE; i++) { + if(CACHE_ENTRY_WITHOUT_FULL_STAT(udb->bulk_port_range_cache[i]) + == bm_index) { + goto next_entry; + } + } + /* this is not in chache already */ + PLATFORM_DEBUG_PRINT("%d ", CACHE_TO_PORT(bm_index, bulk_size)); + if(printed_so_far < NUM_BULK_CHECK) { + prev_bulks[printed_so_far] = bm_index; + printed_so_far++; + } + +next_entry: + db = cnat_main_db + db->user_ports.next; + /* + * its a circular list, so if we have reached the head again + * all the entries for that user have been read + */ + if (db == (cnat_main_db + head)) { + break; + } + } /* while loop for db entries */ + + PLATFORM_DEBUG_PRINT("\n"); + return; +} + +void show_bulk_port_stats() +{ + + cnat_vrfmap_t *my_vrfmap = 0; + PLATFORM_DEBUG_PRINT("Bulk size settings of each inside vrf ...\n"); + pool_foreach (my_vrfmap, cnat_map_by_vrf, ({ + PLATFORM_DEBUG_PRINT("vrf id %d, bulk size %d\n", my_vrfmap->i_vrf, + BULKSIZE_FROM_VRFMAP(my_vrfmap)); + })); + +#ifdef HAVE_BULK_PORT_STATS + PLATFORM_DEBUG_PRINT("\nBulk port allocation, use and cache hit statistics\n"); + PLATFORM_DEBUG_PRINT("Number of times bulk ports allocated %lld\n", + bulk_port_alloc_count); + PLATFORM_DEBUG_PRINT("Number of times pre-allocated ports used %lld\n", + bulk_port_use_count); + PLATFORM_DEBUG_PRINT( + "Number of times pre-allocated bulk port found from cache %lld\n", + bulk_cache_hit_count); + PLATFORM_DEBUG_PRINT( + "Number of times mapped port (static) allocations made %lld\n", + mapped_port_alloc_count); +#else + PLATFORM_DEBUG_PRINT("\nNat44 bulk port statistics not turned on\n"); +#endif /* HAVE_BULK_PORT_STATS */ +} + +void clear_bulk_port_stats() +{ +#ifdef HAVE_BULK_PORT_STATS + bulk_port_alloc_count = 0; + bulk_port_use_count = 0; + bulk_cache_hit_count = 0; + mapped_port_alloc_count = 0; +#endif /* HAVE_BULK_PORT_STATS */ + return; +} + +void cnat_update_bulk_range_cache(cnat_user_db_entry_t *udb, u16 o_port, + bulk_alloc_size_t bulk_size) +{ + i16 i; + if(!udb) { +#ifdef DEBUG_BULK_PORT + PLATFORM_DEBUG_PRINT("%s, null udb!\n", __func__); +#endif + return; + } + if(BULK_ALLOC_SIZE_NONE == bulk_size) { /* no bulk logging */ + return; + } + + /* Take care of caching */ + if(o_port & 0x1) { + o_port--; + } + if(PREDICT_FALSE(o_port <= 0)) { +#ifdef DEBUG_BULK_PORT + PLATFORM_DEBUG_PRINT("%s invalid port: %d\n", __func__, o_port); +#endif + return; + } + + /* First preference is for the cache entry's that are not used yet */ + for(i=0; i < BULK_RANGE_CACHE_SIZE; i++) { + if(PREDICT_FALSE( + udb->bulk_port_range_cache[i] == (i16)BULK_RANGE_INVALID)) { + udb->bulk_port_range_cache[i] = PORT_TO_CACHE(o_port, bulk_size); + return; + } + } + + /* Now check if any cache entry is full and if it can be replaced */ + for(i=0; i < BULK_RANGE_CACHE_SIZE; i++) { + if(PREDICT_FALSE(IS_CACHE_ENTRY_FULL(udb->bulk_port_range_cache[i]))) { + udb->bulk_port_range_cache[i] = PORT_TO_CACHE(o_port, bulk_size); + return; + } + } + + return; +} + + +void cnat_port_free_v2_bulk ( + cnat_portmap_v2_t *pm, + int index, + port_pair_t ptype, + u16 base_port, + cnat_user_db_entry_t *udb, + u16 static_port_range, + bulk_alloc_size_t bulk_size, + int *nfv9_log_req) +{ + cnat_portmap_v2_t *my_pm; + i16 bm_index; + i16 i; + int unmark_full_status = 0; + + *nfv9_log_req = BULK_ALLOC_NOT_ATTEMPTED; + + /* First free up the port */ + cnat_port_free_v2(pm, index, ptype, base_port, static_port_range); + if(BULK_ALLOC_SIZE_NONE == bulk_size) /* no bulk logging */ + return; + if(PREDICT_FALSE(!udb)) { +#ifdef DEBUG_BULK_PORT + PLATFORM_DEBUG_PRINT("%s udb is null\n", __func__); +#endif + } + + if(PREDICT_FALSE(base_port < static_port_range)) { + return; + } + /* Now check if cache needs to be removed */ + my_pm = pm + index; + base_port = base_port/bulk_size; + base_port = base_port * bulk_size; /*Align it to multiples of bulk_size */ + if(PREDICT_TRUE(!cgn_clib_bitmap_check_if_all( + my_pm->bm, base_port, bulk_size))) { + *nfv9_log_req = CACHE_ALLOC_NO_LOG_REQUIRED; + unmark_full_status = 1; + /* One or more ports are still in use */ + } else { + *nfv9_log_req = base_port; /* logging required now. indicate base port*/ + } + bm_index = PORT_TO_CACHE(base_port, bulk_size); + /* Now check if this is in the cache */ + for(i=0; i < BULK_RANGE_CACHE_SIZE; i++) { + if(PREDICT_FALSE( + CACHE_ENTRY_WITHOUT_FULL_STAT(udb->bulk_port_range_cache[i])) + == bm_index) { + if(unmark_full_status) { + /* Unmark full stat.. if it was marked so..*/ + UNMARK_CACHE_ENTRY_AS_FULL(udb->bulk_port_range_cache[i]); + } else { + udb->bulk_port_range_cache[i] = (i16)BULK_RANGE_INVALID; +#ifdef DEBUG_BULK_PORT + PLATFORM_DEBUG_PRINT( + "Clearing cache for client 0x%x, bulk port %d\n", + my_pm->ipv4_address, base_port); +#endif + } + break; + } + } + return; +} + + +/* Get suitable port from range */ +static i16 get_suiting_port_pos_from_range(cnat_portmap_v2_t *my_pm, + u16 bulk_start, i16 bulk_size, port_pair_t pair_type) +{ + i16 num_pos = 0, num_bits, iterations; + uword bulk_ports; + i16 inc = 0; + i16 num_uwords = bulk_size/BITS(my_pm->bm[0]); + + if(PREDICT_FALSE(!num_uwords)) { + iterations = 0; + num_bits = bulk_size; + bulk_size = 0; + } else { + bulk_port_rand_across = randq1(bulk_port_rand_across); + iterations = bulk_port_rand_across % num_uwords; + num_bits = BITS(my_pm->bm[0]); + } + + do { + bulk_ports = cgn_clib_bitmap_get_bits(my_pm->bm, + (bulk_start + iterations * BITS(my_pm->bm[0])), num_bits); +#ifdef DEBUG_BULK_PORT_DETAIL + PLATFORM_DEBUG_PRINT("%s %d, bulk start %d, num_bits %d, ports %lld \n", + __func__, __LINE__, bulk_start, num_bits, bulk_ports); +#endif /* DEBUG_BULK_PORT_DETAIL */ + if(PREDICT_FALSE(!bulk_ports)) goto next_uword; + if(PREDICT_TRUE((pair_type == PORT_SINGLE) + || (pair_type == PORT_PAIR))) { + num_pos =0; + inc = 1; + } else if(pair_type == PORT_S_ODD) { + num_pos = 1; + inc = 2; + } else if(pair_type == PORT_S_EVEN) { + num_pos =0; + inc = 2; + } + + for(; num_pos < num_bits; num_pos = num_pos + inc) { + if(!((bulk_ports >> num_pos) & 1)) + continue; /* In use */ + /* Check if the available port meets our + * criteria such as add, even, pair etc */ + else if(PREDICT_FALSE( + (pair_type == PORT_PAIR) && ((num_pos & 0x1) || + (!((bulk_ports >> (num_pos + 1)) & 1))))) + continue; + else break; /* Found one that meets the criteria */ + } + if(num_pos < num_bits) + return (num_pos + iterations * BITS(my_pm->bm[0])); +next_uword: + num_bits = BITS(my_pm->bm[0]); + bulk_size -= BITS(my_pm->bm[0]); + iterations++; + if(iterations >= num_uwords) iterations = 0; + } while (bulk_size > 0); + + return -2; /* nothing found */ +} + +static cnat_errno_t try_bulk_port_from_non_cache( + cnat_user_db_entry_t *udb, + cnat_portmap_v2_t *my_pm, + port_pair_t pair_type, + bulk_alloc_size_t bulk_size, + u16 *port_available, + u16 static_port_range + ) +{ + /**** + 1. user should have existing translations.. otherwise, we wouldn't get here. + 2. For each, get the outside port. get the base port. + check if it is already in cache + 3. if not, we stand chance. + 4. Check for availability from this non cached pool. + 5. if found, repalce this with one of the cache that is invalid or full?? + 6. if we are replacing the cache.. it has to be governed by user + preference on prefer oldest pool or prefer newest pool + ********/ + u32 head; + cnat_main_db_entry_t *db = NULL; + u16 bulk_start; /* start point in 64 bitmap array to search for port */ + i16 port_pos; /* indicates the position of available port in bulk */ + i16 i; /* just a counter */ + i16 attempts_so_far = 0; /* (futile-;) attemps so far..*/ + u16 prev_bulks[NUM_BULK_CHECK]; + ASSERT(udb); + memset(prev_bulks, 0,sizeof(prev_bulks)); + + head = udb->translation_list_head_index; + if(PREDICT_FALSE(head == EMPTY)) return CNAT_NO_PRE_ALLOCATED_BULK_PORTS; + + db = cnat_main_db + head; + while (1) { //what should be the limit?? + + /* skip static ports - static ports may not belong to bulk pool*/ + if(db->out2in_key.k.port < static_port_range) goto next_entry; + + u16 bm_index = PORT_TO_CACHE(db->out2in_key.k.port, bulk_size); + + /*Check if we have already tested this bulk */ + for(i=0; i < attempts_so_far; i++) { + if(prev_bulks[i] == bm_index) { + goto next_entry; + } + } + + /*Check if this base port is already part of cache */ + for(i=0; i < BULK_RANGE_CACHE_SIZE; i++) { + if(CACHE_ENTRY_WITHOUT_FULL_STAT(udb->bulk_port_range_cache[i]) + == bm_index) + goto next_entry; + } + + /* this is not in chache already */ + bulk_start = CACHE_TO_PORT(bm_index, bulk_size); + port_pos = get_suiting_port_pos_from_range(my_pm, + bulk_start, bulk_size, pair_type); + + if(port_pos < 0) { /* no port available in this range */ + /* Mark this bulk so that we don't have to try this again */ + if(attempts_so_far < NUM_BULK_CHECK) { + prev_bulks[attempts_so_far] = bm_index; + attempts_so_far++; + } + goto next_entry; + } + + /* Got one...Get the port number */ + *port_available = bulk_start + port_pos; + + /* Check to see if we shoud replace one of the cache */ + for(i=0; i < BULK_RANGE_CACHE_SIZE; i++) { + if(PREDICT_FALSE((udb->bulk_port_range_cache[i] + == (i16)BULK_RANGE_INVALID) || ( + IS_CACHE_ENTRY_FULL(udb->bulk_port_range_cache[i])))) { + udb->bulk_port_range_cache[i] = bm_index; + return CNAT_SUCCESS; + } + } + /* Check to replace an existing (in use) entry */ + /* TODO: enforce policy */ + /* order of looping should depend on policy */ + + return CNAT_SUCCESS; + +next_entry: + db = cnat_main_db + db->user_ports.next; + /* + * its a circular list, so if we have reached the head again + * all the entries for that user have been read + */ + if (db == (cnat_main_db + head)) { + break; + } + } /* while loop for db entries */ + /* no ports available from pre allocated bulk pool */ + return CNAT_NO_PORT_FROM_BULK; +} + +cnat_errno_t +cnat_dynamic_port_alloc_v2_bulk ( + cnat_portmap_v2_t *pm, + port_alloc_t atype, + port_pair_t pair_type, + u32 *index, + u32 *o_ipv4_address, + u16 *o_port, + u16 static_port_range, + cnat_user_db_entry_t *udb, + bulk_alloc_size_t bulk_size, + int *nfv9_log_req, + u16 ip_n_to_1, + u32 *rseed_ip + ) +{ + + cnat_errno_t rv; + u16 port_available = 0; + i16 i; + cnat_portmap_v2_t *my_pm; + + if((BULK_ALLOC_SIZE_NONE != bulk_size) /* bulk logging enabled */ + && (udb)) { /* This user does have translations already */ + u16 bulk_start; + i16 port_pos; + + my_pm = pm + *index; + /* We have a case to check if bulk allocated ports can be used */ + /* TODO: order of looping to be based on policy + * like prefer older or prefer newer ?? + * For now, start with most recent cache entry + * so that we stand a better chance of + * finding a port + */ + for(i= 0; i < BULK_RANGE_CACHE_SIZE; i++) { + if(PREDICT_TRUE((udb->bulk_port_range_cache[i] == + (i16)BULK_RANGE_INVALID) || + IS_CACHE_ENTRY_FULL(udb->bulk_port_range_cache[i]))) { + continue; /* This range is not initialized yet or it is full */ + } + bulk_start = CACHE_TO_PORT(udb->bulk_port_range_cache[i], + bulk_size); + port_pos = get_suiting_port_pos_from_range(my_pm, + bulk_start, bulk_size, pair_type); + if(PREDICT_FALSE(port_pos < 0)) { + /* Mark this cache entry as full so that we do not + * waste time on this entry again */ + MARK_CACHE_ENTRY_AS_FULL(udb->bulk_port_range_cache[i]); +#ifdef DEBUG_BULK_PORT + PLATFORM_DEBUG_PRINT("Marked bulk cache entry %d as full for %x \n", + i, my_pm->ipv4_address); +#endif /* #ifdef DEBUG_BULK_PORT */ + continue; + } + /* Get the port number */ + port_available = bulk_start+ port_pos; +#ifdef DEBUG_BULK_PORT + PLATFORM_DEBUG_PRINT( + "Found port from cache : IP 0x%x, port %d %d iterations\n", + my_pm->ipv4_address, port_available, i) +#endif +#ifdef HAVE_BULK_PORT_STATS + bulk_cache_hit_count++; +#endif /* HAVE_BULK_PORT_STATS */ + break; + } /* end of for loop for cache check */ + /* If we have not found a port yet, check if we can have + * pre allocated bulk port from non-cache */ + if(PREDICT_FALSE(i == BULK_RANGE_CACHE_SIZE)) { + if( try_bulk_port_from_non_cache(udb, my_pm, pair_type, + bulk_size, &port_available, + static_port_range) != CNAT_SUCCESS ) { + goto ALLCOATE_NEW_BULK; + } +#ifdef DEBUG_BULK_PORT + PLATFORM_DEBUG_PRINT("Found port from non-cache : IP 0x%x, port %d\n", + my_pm->ipv4_address, port_available); +#endif + } + /* Assign the port, mark it as in use */ + cgn_clib_bitmap_clear_no_check(my_pm->bm, port_available); + (my_pm->inuse)++; + if(PREDICT_FALSE(pair_type == PORT_PAIR)) {/* Mark the next one too */ + cgn_clib_bitmap_clear_no_check(my_pm->bm, port_available + 1); + (my_pm->inuse)++; + } + *o_ipv4_address = my_pm->ipv4_address; + *o_port = port_available; + *nfv9_log_req = CACHE_ALLOC_NO_LOG_REQUIRED; +#ifdef HAVE_BULK_PORT_STATS + bulk_port_use_count++; +#endif /* HAVE_BULK_PORT_STATS */ + return (CNAT_SUCCESS); + } +ALLCOATE_NEW_BULK: +#ifdef DEBUG_BULK_PORT + if(BULK_ALLOC_SIZE_NONE != bulk_size) { + PLATFORM_DEBUG_PRINT( + "No port available from bulk cache, bulk size %d\n", bulk_size); + } +#endif + /* For whatever reason, we have not got a port yet */ + rv = cnat_dynamic_port_alloc_v2(pm, atype, pair_type, index, + o_ipv4_address, o_port, static_port_range, bulk_size, nfv9_log_req, + ip_n_to_1, rseed_ip); + if (PREDICT_FALSE(rv != CNAT_SUCCESS)) { + return rv; + } + /* Take care of caching */ + if(PREDICT_FALSE(udb != NULL)) { + /* Predict false because, we usually allocate for new users */ + cnat_update_bulk_range_cache(udb, *o_port, bulk_size); + } +#ifdef HAVE_BULK_PORT_STATS + bulk_port_alloc_count++; +#endif /* HAVE_BULK_PORT_STATS */ + return (CNAT_SUCCESS); +} + + +cnat_errno_t +cnat_static_port_alloc_v2_bulk ( + cnat_portmap_v2_t *pm, + port_alloc_t atype, + port_pair_t pair_type, + u32 i_ipv4_address, + u16 i_port, + u32 *index, + u32 *o_ipv4_address, + u16 *o_port, + u16 static_port_range, + cnat_user_db_entry_t *udb, + bulk_alloc_size_t bulk_size, + int *nfv9_log_req, + u16 ip_n_to_1 + ) +{ + + /*** + * Requirements - + * 1. If the port allocated is below dyn start, it should be individual + * port (not bulk) + * 2. If NOT, it should be bulk allocated + * 3. Try and keep the inside port same as outside port in both the + * cases (best effort) + + * Algorithm + * 1. Check if it is below stat port start or user is new or bulk is + * disabled. If yes, call existing function + * 2. If not, see if we can pick from bulk and yet try to keep the port + * same - difficult thing - check if the port is free - then check if the + * entire bulk is free - if not check if bulk is owned by the user already. + * If all of these fail, call existing function to allocate a new bulk + * 3. Update cache, etc return log requirements + *****/ + + cnat_errno_t rv; + i16 i; + u32 head; + cnat_portmap_v2_t *my_pm; + uword bit_test_result, start_bit; + cnat_main_db_entry_t *db = NULL; + + if((BULK_ALLOC_SIZE_NONE != bulk_size) /* bulk logging enabled */ + && (udb) && /* This user does have translations already */ + i_port >= static_port_range ) { /* It is outside stat port range*/ + + my_pm = pm + *index; + /* We have a case to check if bulk allocated ports can be used */ + + /* First check if the required port is available. */ + if(PREDICT_FALSE(clib_bitmap_get_no_check(my_pm->bm, i_port) == 0)) { + goto ALLOCATE_NEW_BULK_STATIC; + } + + /* Port is free.. check if the bulk is also free */ + start_bit= ((i_port/bulk_size) * bulk_size); + bit_test_result = cgn_clib_bitmap_check_if_all(my_pm->bm, + start_bit, bulk_size); + if(PREDICT_TRUE(bit_test_result)) { /* bulk is available, grab it */ + goto ALLOCATE_NEW_BULK_STATIC; + } + + /* else, bulk is taken by someone. check if it is me */ + /* Check if we own the bulk by any chance */ + for(i=0; i < BULK_RANGE_CACHE_SIZE; i++) { + if(udb->bulk_port_range_cache[i] == start_bit) break; + } + if(i == BULK_RANGE_CACHE_SIZE) { /* no luck with cache */ + head = udb->translation_list_head_index; + if(PREDICT_FALSE(head == EMPTY)) + goto ALLOCATE_NEW_BULK_STATIC; + db = cnat_main_db + head; + i = 0; + while(1) { + if((db->out2in_key.k.port/bulk_size) * bulk_size == start_bit) { + i = 1; /* Just to indicate it is found */ + break; + } + db = cnat_main_db + db->user_ports.next; + /* + * its a circular list, so if we have reached the head again + * all the entries for that user have been read + */ + if (db == (cnat_main_db + head)) break; + } /* while loop for db entries */ + if(!i) { + goto ALLOCATE_NEW_BULK_STATIC; + } + } + /* Assign the port, mark it as in use */ + cgn_clib_bitmap_clear_no_check(my_pm->bm, i_port); + (my_pm->inuse)++; + *o_ipv4_address = my_pm->ipv4_address; + *o_port = i_port; + *nfv9_log_req = CACHE_ALLOC_NO_LOG_REQUIRED; +#ifdef HAVE_BULK_PORT_STATS + bulk_port_use_count++; +#endif /* HAVE_BULK_PORT_STATS */ + +#ifdef DEBUG_BULK_PORT + PLATFORM_DEBUG_PRINT("%s, %d, found stat port from bulk: %x, %d\n", + __func__, + __LINE__, *o_ipv4_address, *o_port); +#endif /* DEBUG_BULK_PORT */ + return (CNAT_SUCCESS); + } + +ALLOCATE_NEW_BULK_STATIC: +#ifdef DEBUG_BULK_PORT + PLATFORM_DEBUG_PRINT("%s No port available from bulk cache, bulk size %d\n", + __func__,bulk_size); +#endif + /* For whatever reason, we have not got a port yet */ + rv = cnat_static_port_alloc_v2(pm, atype, pair_type, i_ipv4_address, + i_port, index, o_ipv4_address, o_port, static_port_range, + bulk_size, nfv9_log_req,ip_n_to_1); + if (PREDICT_FALSE(rv != CNAT_SUCCESS)) { + return rv; + } + /* Take care of caching only if it was a bulk alloc */ + if(PREDICT_FALSE(udb && (BULK_ALLOC_NOT_ATTEMPTED != *nfv9_log_req))) { + cnat_update_bulk_range_cache(udb, *o_port, bulk_size); + } +#ifdef HAVE_BULK_PORT_STATS + bulk_port_alloc_count++; +#endif /* HAVE_BULK_PORT_STATS */ + return (CNAT_SUCCESS); + +} + +cnat_errno_t +cnat_mapped_static_port_alloc_v2_bulk ( + cnat_portmap_v2_t *pm, + port_alloc_t atype, + u32 *index, + u32 ipv4_address, + u16 port, + cnat_user_db_entry_t *udb, + bulk_alloc_size_t bulk_size, + int *nfv9_log_req, + u16 ip_n_to_1 + ) +{ + /* Requirements : + * 1. Check if bulk allocation is required. + * 2. Call cnat_mapped_static_port_alloc_v2 to allocate + * 3. Decide if alloc has to be cached + * 4. Update nfv9_log_req + */ + cnat_errno_t rv; + rv = cnat_mapped_static_port_alloc_v2 (pm, + atype, index, ipv4_address, port, nfv9_log_req, bulk_size, ip_n_to_1); + if (PREDICT_FALSE(rv != CNAT_SUCCESS)) { + return rv; + } + /* Take care of caching only if it was a bulk alloc */ + if(PREDICT_FALSE(udb && (BULK_ALLOC_NOT_ATTEMPTED != *nfv9_log_req))) { + int i; + port = port*bulk_size; + port = port/bulk_size; /* align it to bulk size boundary */ + for(i=0; i < BULK_RANGE_CACHE_SIZE; i++) { + if(CACHE_ENTRY_WITHOUT_FULL_STAT(udb->bulk_port_range_cache[i]) + == PORT_TO_CACHE(port, bulk_size)) + break; + } + if( i == BULK_RANGE_CACHE_SIZE) { /* else, it is alredy in cache */ + cnat_update_bulk_range_cache(udb, port, bulk_size); + } + } +#ifdef HAVE_BULK_PORT_STATS + mapped_port_alloc_count++; +#endif /* HAVE_BULK_PORT_STATS */ + return (CNAT_SUCCESS); +} + + +cnat_errno_t +cnat_dynamic_port_alloc_rtsp_bulk ( + cnat_portmap_v2_t *pm, + port_alloc_t atype, + port_pair_t pair_type, + u16 i_port, + u32 *index, + u32 *o_ipv4_address, + u16 *o_port, + u16 static_port_range, + cnat_user_db_entry_t *udb, + bulk_alloc_size_t bulk_size, + int *nfv9_log_req, + u32 *rseed_ip) +{ + + /*** + * Algorithm + * 1. Compute the range of ports required based on the number of digits + * in the port request made by the client. + * 2. Check if bulk logging is enabled. If not, use the existing method. + * 3. Check if there are 2 adjacent ports available that meet the above + * criteria in any of the bulk allocations made already. + * 4. If yes, mark them in use and return. + * 5. If not allocate a new bulk and pick 2 ports in it + ***/ + + i16 i; + cnat_portmap_v2_t *my_pm = 0; + u32 start_port1, end_port1, start_port2, end_port2; + int range_loop; + u16 bulk_start; + i16 port_pos; + u16 port_available = 0; + + ASSERT(index); + ASSERT(o_ipv4_address); + ASSERT(o_port); + + /* + * Check if the port is 4 digit or 5 digit. I am assuming we are + * not getting 3 (or 2 or 1) digit ports, which we cannot anyway + * allocate same sized outside ports - as outside ports start from 1024 + * + * Static Port has its own reserved range. Ensure that the range is + * such that atleast few 4 digit ports are available for RTSP. If + * not it does not make sense to do special allocation for RTSP. + */ + if (PREDICT_TRUE(static_port_range < MIN_STATIC_PORT_RANGE_FOR_RTSP)) { + /* + * 4 digit port or less + */ + if (i_port <= 9999) { + start_port1 = static_port_range; + end_port1 = 9999; + + start_port2 = 10000; + end_port2 = PORTS_PER_ADDR - 1; + } else { /* 5 digit port */ + start_port1 = 10000; + end_port1 = PORTS_PER_ADDR - 1; + + start_port2 = static_port_range; + end_port2 = 9999; + } + } else { /* Static port range is too big */ + start_port1 = static_port_range; + end_port1 = PORTS_PER_ADDR - 1; + + /* + * PORTS_PER_ADDR is just a placeholder for + * INVALID_PORT, valid ports are b/w 1 and PORTS_PER_ADDR + */ + start_port2 = PORTS_PER_ADDR; + end_port2 = PORTS_PER_ADDR; + } + + + if(PREDICT_TRUE(udb != NULL)) { + my_pm = pm + *index; + } + + /* Now check if this user already owns a bulk range that is + * within start range 1 + */ + + u32 start_range = start_port1; + u32 end_range = end_port1; + for(range_loop = 0; range_loop < 2; range_loop++) { + if((BULK_ALLOC_SIZE_NONE == bulk_size) || (!udb)) { + goto ALLOCATE_NEW_RTSP_PORTS; + } + for(i= 0; i < BULK_RANGE_CACHE_SIZE; i++) { + if(PREDICT_TRUE((udb->bulk_port_range_cache[i] == + (i16)BULK_RANGE_INVALID) || + IS_CACHE_ENTRY_FULL(udb->bulk_port_range_cache[i]))) { + continue; /* This range is not initialized yet or it is full */ + } + + bulk_start = CACHE_TO_PORT(udb->bulk_port_range_cache[i], + bulk_size); + if(bulk_start < start_port1 || bulk_start >= end_port1) { + continue; /* Not in the range */ + } + + port_pos = get_suiting_port_pos_from_range(my_pm, + bulk_start, bulk_size, pair_type); + if(PREDICT_FALSE(port_pos < 0)) { + /* Not Marking this cache entry as full as it failed + * for pair type. It might have individual entries + */ + continue; + } + /* Get the port number */ + port_available = bulk_start+ port_pos; +#ifdef DEBUG_BULK_PORT + PLATFORM_DEBUG_PRINT( + "Found port from cache : IP 0x%x, port %d %d iterations\n", + my_pm->ipv4_address, port_available, i) +#endif +#ifdef HAVE_BULK_PORT_STATS + bulk_cache_hit_count += 2; +#endif /* HAVE_BULK_PORT_STATS */ + break; + } /* end of for loop for cache check */ + + if(PREDICT_FALSE(i == BULK_RANGE_CACHE_SIZE)) { + /* we have not found a port yet, but to do not want to try + * non-cache bulks.. because, it is a very low probability and + * do not want to tweak that code for this special case + * The impact of non checking the non-cache is, we give this + * user few extra ports .. which is OK + */ + goto ALLOCATE_NEW_RTSP_PORTS; + } +#ifdef DEBUG_BULK_PORT + PLATFORM_DEBUG_PRINT("RTSP: Found port from non-cache : IP 0x%x, port %d\n", + my_pm->ipv4_address, port_available); +#endif + + /* Assign the port, mark it as in use */ + cgn_clib_bitmap_clear_no_check(my_pm->bm, port_available); + (my_pm->inuse)++; + cgn_clib_bitmap_clear_no_check(my_pm->bm, port_available + 1); + (my_pm->inuse)++; + + *o_ipv4_address = my_pm->ipv4_address; + *o_port = port_available; + *nfv9_log_req = CACHE_ALLOC_NO_LOG_REQUIRED; +#ifdef HAVE_BULK_PORT_STATS + bulk_port_use_count += 2; +#endif /* HAVE_BULK_PORT_STATS */ + return (CNAT_SUCCESS); + +ALLOCATE_NEW_RTSP_PORTS: + /* No luck. Let's try allocating new bulk.. */ + if(PREDICT_TRUE(CNAT_SUCCESS == cnat_dynamic_port_alloc_rtsp + (pm, atype, pair_type, + start_range, end_range,index, o_ipv4_address, + o_port, bulk_size, nfv9_log_req,rseed_ip))) { + if(PREDICT_FALSE(udb && + (BULK_ALLOC_NOT_ATTEMPTED != *nfv9_log_req))) { + cnat_update_bulk_range_cache(udb, *o_port, bulk_size); + } +#ifdef HAVE_BULK_PORT_STATS + bulk_port_alloc_count++; +#endif /* HAVE_BULK_PORT_STATS */ + return CNAT_SUCCESS; + } + + /* Could not allocate in range 1.. so move to range 2. */ + start_range = start_port2; + end_range = end_port2; + + } + + return (CNAT_NOT_FOUND_DIRECT); /* if we are here, we could not get any ports */ + +} + +#else /* Dummy definitions */ +void show_bulk_port_stats() +{ + PLATFORM_DEBUG_PRINT("\nBulk logging feature not included\n"); +} + + void clear_bulk_port_stats() +{ + PLATFORM_DEBUG_PRINT("\nBulk logging feature not included\n"); +} +#endif /* NO_BULK_LOGGING */ diff --git a/plugins/vcgn-plugin/vcgn/cnat_bulk_port.h b/plugins/vcgn-plugin/vcgn/cnat_bulk_port.h new file mode 100644 index 00000000..3e48b9a7 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_bulk_port.h @@ -0,0 +1,157 @@ +/* + *------------------------------------------------------------------ + * cnat_bulk_port_defs.h bulk port alloc definitions + * + * Copyright (c) 2011-2013 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ + +#ifndef __CNAT_BULK_PORT_H__ +#define __CNAT_BULK_PORT_H__ + +#ifndef NO_BULK_LOGGING +#include "cnat_bulk_port_defs.h" + +cnat_errno_t +cnat_dynamic_port_alloc_v2_bulk ( + cnat_portmap_v2_t *pm, + port_alloc_t atype, + port_pair_t pair_type, + u32 *index, + u32 *o_ipv4_address, + u16 *o_port, + u16 static_port_range, + cnat_user_db_entry_t *udb, + bulk_alloc_size_t bulk_size, + int *nfv9_log_req, + u16 ip_n_to_1, + u32 *rseed_ip); + +void cnat_update_bulk_range_cache(cnat_user_db_entry_t *udb, u16 o_port, + bulk_alloc_size_t bulk_size); + +void cnat_port_free_v2_bulk ( + cnat_portmap_v2_t *pm, + int index, + port_pair_t ptype, + u16 base_port, + cnat_user_db_entry_t *udb, + u16 static_port_range, + bulk_alloc_size_t bulk_size, + int *nfv9_log_req); + +cnat_errno_t cnat_static_port_alloc_v2_bulk ( + cnat_portmap_v2_t *pm, + port_alloc_t atype, + port_pair_t pair_type, + u32 i_ipv4_address, + u16 i_port, + u32 *index, + u32 *o_ipv4_address, + u16 *o_port, + u16 static_port_range, + cnat_user_db_entry_t *udb, + bulk_alloc_size_t bulk_size, + int *nfv9_log_req, + u16 ip_n_to_1 + ); + +cnat_errno_t cnat_dynamic_port_alloc_rtsp_bulk ( + cnat_portmap_v2_t *pm, + port_alloc_t atype, + port_pair_t pair_type, + u16 i_port, + u32 *index, + u32 *o_ipv4_address, + u16 *o_port, + u16 static_port_range, + cnat_user_db_entry_t *udb, + bulk_alloc_size_t bulk_size, + int *nfv9_log_req, + u32 *rseed_ip); + +cnat_errno_t +cnat_mapped_static_port_alloc_v2_bulk ( + cnat_portmap_v2_t *pm, + port_alloc_t atype, + u32 *index, + u32 ipv4_address, + u16 port, + cnat_user_db_entry_t *udb, + bulk_alloc_size_t bulk_size, + int *nfv9_log_req, + u16 ip_n_to_1 + ); + +#else /* NO_BULK_LOGGING */ +/* use older code */ +inline cnat_errno_t +cnat_dynamic_port_alloc_v2_bulk ( + cnat_vrfmap_t *vrf_map, + port_alloc_t atype, + port_pair_t pair_type, + u32 *index, + u32 *o_ipv4_address, + u16 *o_port, + u16 static_port_range, + u16 ip_n_to_1, + u32 *rseed_ip + ) +{ + return cnat_dynamic_port_alloc_v2(vrf_map->portmap_list, atype, + pair_type, index, o_ipv4_address, o_port, static_port_range, + ip_n_to_1, rseed_ip); +} + +inline void cnat_port_free_v2_bulk ( + cnat_portmap_v2_t *pm, + int index, + port_pair_t ptype, + u16 base_port, + cnat_user_db_entry_t *udb, + u16 static_port_range); +{ + return cnat_port_free_v2(pm, index, ptype, base_port, + static_port_range); +} + +inline cnat_errno_t cnat_static_port_alloc_v2_bulk ( + cnat_portmap_v2_t *pm, + port_alloc_t atype, + port_pair_t pair_type, + u32 i_ipv4_address, + u16 i_port, + u32 *index, + u32 *o_ipv4_address, + u16 *o_port, + u16 static_port_range) +{ + return cnat_static_port_alloc_v2 (pm, atype, pair_type, + i_ipv4_address, i_port, index, o_ipv4_address, o_port); +} + +inline cnat_errno_t +cnat_mapped_static_port_alloc_v2_bulk ( + cnat_portmap_v2_t *pm, + port_alloc_t atype, + u32 *index, + u32 ipv4_address, + u16 port) +{ + return cnat_mapped_static_port_alloc_v2(pm, atype, index + ipv4_address, port); +} + +#endif /* NO_BULK_LOGGING */ +#endif /* __CNAT_BULK_PORT_H__ */ diff --git a/plugins/vcgn-plugin/vcgn/cnat_bulk_port_defs.h b/plugins/vcgn-plugin/vcgn/cnat_bulk_port_defs.h new file mode 100644 index 00000000..edb47b0a --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_bulk_port_defs.h @@ -0,0 +1,57 @@ +/* + *------------------------------------------------------------------ + * cnat_bulk_port_defs.h bulk port alloc definitions + * + * Copyright (c) 2011 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ + +#ifndef __CNAT_BULK_PORT_DEFS_H__ +#define __CNAT_BULK_PORT_DEFS_H__ + + +#ifndef NO_BULK_LOGGING + +typedef enum { + BULK_ALLOC_SIZE_NONE = 1, + BULK_ALLOC_SIZE_16 = 16, + BULK_ALLOC_SIZE_32 = 32, + BULK_ALLOC_SIZE_64 = 64, + BULK_ALLOC_SIZE_128 = 128, + BULK_ALLOC_SIZE_256 = 256, + BULK_ALLOC_SIZE_512 = 512, + BULK_ALLOC_SIZE_1024 = 1024, + BULK_ALLOC_SIZE_2048 = 2048, + BULK_ALLOC_SIZE_4096 = 4096 +} bulk_alloc_size_t; + +/* #define DEBUG_BULK_PORT 1 TODO: remove this later */ + +#define CACHE_ALLOC_NO_LOG_REQUIRED -1 +#define BULK_ALLOC_NOT_ATTEMPTED -2 + +#define BULK_RANGE_INVALID 0xFFFF +#define BULK_RANGE_CACHE_SIZE 4 + +#define BULKSIZE_FROM_VRFMAP(vrfmap) ((vrfmap)->bulk_size) + +#define INIT_BULK_CACHE(udb) \ + { \ + int i; \ + for(i =0; i < BULK_RANGE_CACHE_SIZE; i++) \ + (udb)->bulk_port_range_cache[i] = (i16)BULK_RANGE_INVALID; \ + } + +#endif /* NO_BULK_LOGGING */ +#endif /* __CNAT_BULK_PORT_DEFS_H__ */ diff --git a/plugins/vcgn-plugin/vcgn/cnat_cli.h b/plugins/vcgn-plugin/vcgn/cnat_cli.h new file mode 100644 index 00000000..e9d190a5 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_cli.h @@ -0,0 +1,206 @@ +/* *------------------------------------------------------------------ + * cnat_cli.h - CLI definitions + * + * Copyright (c) 2007-2013 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ + +#ifndef __CNAT_CLI_H__ +#define __CNAT_CLI_H__ + +#include "cnat_config_api.h" +#include "cnat_show_api.h" + +/* from iox cli error */ +typedef enum { + CNAT_SUCCESS = 0, + CNAT_NO_CONFIG, + CNAT_NO_VRF_RUN, + CNAT_NO_POOL_ANY, + CNAT_NO_PORT_ANY, +#ifndef NO_BULK_LOGGING + CNAT_NO_PORT_FROM_BULK, + CNAT_NO_PRE_ALLOCATED_BULK_PORTS, +#endif /* NO_BULK_LOGGING */ + CNAT_BAD_INUSE_ANY, + CNAT_NOT_FOUND_ANY, + CNAT_INV_PORT_DIRECT, + CNAT_DEL_PORT_DIRECT, + CNAT_BAD_INUSE_DIRECT, + CNAT_NOT_FOUND_DIRECT, + CNAT_OUT_LIMIT, + CNAT_MAIN_DB_LIMIT, + CNAT_USER_DB_LIMIT, + CNAT_NOT_STATIC_PORT, + CNAT_BAD_STATIC_PORT_REQ, + CNAT_NOT_THIS_CORE, + CNAT_ERR_PARSER, + CNAT_ERR_INVALID_MSG_ID, + CNAT_ERR_INVALID_MSG_SIZE, + CNAT_ERR_INVALID_PAYLOAD_SIZE, + CNAT_ERR_BAD_TCP_UDP_PORT, + CNAT_ERR_BULK_SINGLE_FAILURE, + CNAT_ERR_XLAT_ID_INVALID, + CNAT_ERR_XLAT_V6_PREFIX_INVALID, + CNAT_ERR_XLAT_V4_PREFIX_INVALID, + CNAT_ERR_XLAT_TCP_MSS_INVALID, + CNAT_ERR_6RD_ID_INVALID, + CNAT_ERR_6RD_V4_TUNNEL_SRC_INVALID, + CNAT_ERR_6RD_V6_PREFIX_INVALID, + CNAT_ERR_6RD_V6_BR_UNICAST_INVALID, + CNAT_ERR_6RD_V4_PREFIX_MASK_LEN_INVALID, + CNAT_ERR_6RD_V4_SUFFIX_MASK_LEN_INVALID, + CNAT_ERR_6RD_V4_COMBO_MASK_LEN_INVALID, + CNAT_ERR_6RD_TUNNEL_MTU_INVALID, + CNAT_ERR_6RD_TUNNEL_TTL_INVALID, + CNAT_ERR_6RD_TUNNEL_TOS_INVALID, + CNAT_ERR_NAT64_NO_VRF_RUN, + CNAT_ERR_NAT64_ID_INVALID, + CNAT_ERR_NAT64_V6_PREFIX_INVALID, + CNAT_ERR_NAT64_V4_PREFIX_INVALID, + CNAT_ERR_NAT64_TCP_MSS_INVALID, +#ifdef CGSE_DS_LITE + CNAT_ERR_DS_LITE_ID_INVALID, +#endif /* CGSE_DS_LITE */ + CNAT_ERR_NO_SESSION_DB, + CNAT_ERR_MAPE_ID_INVALID, + CNAT_ERR_MAX +} cnat_errno_t; + +#define CNAT_TRUE 1 +#define CNAT_FALSE 0 + + +#define CNAT_DEBUG_NONE (0) +#define CNAT_DEBUG_GLOBAL_ERR (1 << 0) +#define CNAT_DEBUG_DROP_TCP (1 << 0) +#define CNAT_DEBUG_DROP_UDP (1 << 1) +#define CNAT_DEBUG_DROP_ICMP (1 << 2) +#define CNAT_DEBUG_ERR_TCP (1 << 3) +#define CNAT_DEBUG_ERR_UDP (1 << 4) +#define CNAT_DEBUG_ERR_ICMP (1 << 5) +#define CNAT_DEBUG_ERR_ALG (1 << 6) +#define CNAT_DEBUG_GLOBAL_ALL (1 << 7) +#define CNAT_DEBUG_FTP_ALG (1 << 8) + + + +#define CNAT_DEBUG_ALL 0x1FF /*all of above*/ +#define CNAT_DEBUG_ERR_ALL 0x38 + +#define CNAT_DB_CLEAR_SPECIFIC (0) +#define CNAT_DB_CLEAR_ALL (1 << 0) +#define CNAT_DB_CLEAR_VRF (1 << 1) +#define CNAT_DB_CLEAR_ADDR (1 << 2) +#define CNAT_DB_CLEAR_PROTO (1 << 3) +#define CNAT_DB_CLEAR_PORT (1 << 4) + + +#define MAX_UIDX 0x3fff /*the max svi app uidb index */ +/* address mask per core */ +#define ADDR_MASK_PER_CORE PLATFORM_ADDR_MASK_PER_CORE +#define ADDR_MASK_PER_CORE_PER_PARTITION \ + PLATFORM_ADDR_MASK_PER_CORE_PER_PARTITION + +#define MAX_CORES PLATFORM_MAX_CORES +#define MAX_CORES_PER_PARTITION PLATFORM_MAX_CORES_PER_PARTITION + +/* + * Maximum pool size that is supported by platform + */ +#define CNAT_MAX_ADDR_POOL_SIZE PLATFORM_CNAT_MAX_ADDR_POOL_SIZE +#define CNAT_MAX_ADDR_POOL_SIZE_PER_CORE \ + (CNAT_MAX_ADDR_POOL_SIZE / MAX_CORES_PER_PARTITION) + +#define BOUNDARY_VALUE 256 + +#define BOUNDARY_VALUE_MASK 0xff + +#define NUM_ADDR_IN_RANGE(range, value, instance) \ + ((range / value) + ((instance % MAX_CORES_PER_PARTITION) < (range%value) ? 1 : 0)) + +typedef enum { + CNAT_DEBUG_FLAGS_DUMP = 0, + CNAT_DEBUG_FLAG_UDP_INSIDE_CHECKSUM_DISABLE, + CNAT_DEBUG_FLAG_UDP_OUTSIDE_CHECKSUM_DISABLE, + CNAT_DEBUG_FLAG_UDP_OUTSIDE_PKT_DUMP_ENABLE, + CNAT_DEBUG_FLAG_UDP_INSIDE_PKT_DUMP_ENABLE, + CNAT_DEBUG_FLAG_ICMP_PKT_DUMP_ENABLE, + CNAT_DEBUG_FLAG_FRAG_PKT_DUMP_ENABLE, + CNAT_DEBUG_FLAG_CONFIG_DEBUG_ENABLE, + CNAT_DEBUG_FLAG_GLOBAL_DEBUG_ALL_ENABLE, + CNAT_DEBUG_FLAG_SUMMARY_STATS_DEBUG_ENABLE, + CNAT_DEBUG_FLAG_SHOW_DEBUG_ENABLE, + CNAT_DEBUG_FLAG_XLAT_CONFIG_DEBUG_ENABLE, + CNAT_DEBUG_FLAG_XLAT_DATA_PATH_DEBUG_ENABLE, + CNAT_DEBUG_FLAG_TCP_LOGGING_ENABLE, + CNAT_DEBUG_FLAG_NFV9_LOGGING_DUMP_ENABLE, + CNAT_DEBUG_FLAG_SYSLOG_LOGGING_DUMP_ENABLE, + CNAT_DEBUG_SET_STATIC_PORT_RANGE, + CNAT_DEBUG_FLAG_V6RD_DATA_PATH_DEBUG_ENABLE, + CNAT_DEBUG_FLAG_V6RD_CONFIG_DEBUG_ENABLE, + CNAT_DEBUG_FLAG_V6RD_DEFRAG_DEBUG_ENABLE, + CNAT_DEBUG_FLAG_NAT64_CONFIG_DEBUG_ENABLE, + CNAT_DEBUG_FLAG_NAT64_DATA_PATH_DEBUG_ENABLE, + CNAT_DEBUG_FLAG_DSLITE_DP_ENABLE, + CNAT_DEBUG_FLAG_DSLITE_CONFIG_DEBUG_ENABLE, + CNAT_DEBUG_FLAG_CONFIG_PPTP_ENABLE = 24, + CNAT_DEBUG_FLAG_CONFIG_PCP_ENABLE = 25, + CNAT_DEBUG_FLAG_MAPE_CONFIG_DEBUG_ENABLE, + CNAT_DEBUG_FLAG_MAPE_DATA_PATH_DEBUG_ENABLE, + CNAT_DEBUG_FLAG_MAX, +} cnat_debug_variable_value; + +/* + * Don't use too small values for PATH MTU + */ +#define MIN_NFV9_PATH_MTU 100 + +extern u32 global_debug_flag; +extern u16 debug_i_vrf; +extern u32 debug_i_flag; +extern u32 debug_i_addr_start; +extern u32 debug_i_addr_end; +extern u16 debug_o_vrf; +extern u32 debug_o_flag; +extern u32 debug_o_addr_start; +extern u32 debug_o_addr_end; +extern u32 tcp_logging_enable_flag; +extern u32 nfv9_logging_debug_flag; + +extern u32 udp_inside_checksum_disable; +extern u32 udp_outside_checksum_disable; +extern u32 udp_inside_packet_dump_enable; +extern u32 udp_outside_packet_dump_enable; + +extern u32 icmp_debug_flag; +extern u32 frag_debug_flag; + +extern u32 summary_stats_debug_flag; + +extern u32 config_debug_level; +extern u32 show_debug_level; + + +/* CLI API prototypes called from vcgn_classify.c */ +extern void cnat_nat44_add_vrf_map_t_handler(spp_api_cnat_v4_add_vrf_map_t *mp, + vlib_main_t *vm); +extern void cnat_nat44_handle_show_stats(vlib_main_t *vm); +extern void cnat_nat44_handle_show_config(vlib_main_t *vm); +extern void cnat_nat44_set_protocol_timeout_value(u16 active, + u16 init, u8 *proto, u8 reset, vlib_main_t *vm); +extern void cnat_v4_show_inside_entry_req_t_handler +(spp_api_cnat_v4_show_inside_entry_req_t *mp, vlib_main_t *vm); + +#endif /* __CNAT_CLI_H__ */ diff --git a/plugins/vcgn-plugin/vcgn/cnat_cli_handler.c b/plugins/vcgn-plugin/vcgn/cnat_cli_handler.c new file mode 100644 index 00000000..a4010349 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_cli_handler.c @@ -0,0 +1,961 @@ +/* *------------------------------------------------------------------ + * cnat_cli_handler.c - CLI handler definitions + * + * Copyright (c) 2007-2015 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ + +#include <vlib/vlib.h> +#include <vnet/vnet.h> +#include <vppinfra/vec.h> +#include <vppinfra/bitmap.h> +#include <vppinfra/hash.h> +#include <vppinfra/pool.h> +#include <vppinfra/clib.h> +#include <vppinfra/error.h> + +#include "cnat_db.h" +#include "cnat_config.h" +#include "cnat_global.h" +#include "cnat_cli.h" +#include "cnat_logging.h" +#include "cnat_syslog.h" +#include "cnat_config_api.h" +#include "cnat_show_api.h" +#include "cnat_show_response.h" + +#include <arpa/inet.h> + +#if DPDK +#include <vnet/devices/dpdk/dpdk.h> +#endif + +u32 show_debug_level = 0; + +u32 +cnat_get_vrfmap_nfv9_logging_index (u32 i_vrf_id) +{ + cnat_nfv9_logging_info_t *my_nfv9_logging_info = 0; + u32 logging_index = EMPTY; + + /* + * Start with global logging index if available + */ + if (cnat_nfv9_global_info.cnat_nfv9_init_done) { + logging_index = cnat_nfv9_global_info.cnat_nfv9_global_collector_index; + + pool_foreach (my_nfv9_logging_info, cnat_nfv9_logging_info_pool, ({ + if (my_nfv9_logging_info->i_vrf_id == i_vrf_id) { + logging_index = my_nfv9_logging_info - + cnat_nfv9_logging_info_pool; + break; + } + })); + } + return (logging_index); +} + +u32 +cnat_get_vrfmap_syslog_logging_index (u32 i_vrf_id) +{ + cnat_syslog_logging_info_t *my_syslog_info = NULL; + u32 logging_index = EMPTY; + + /* + * Start with global logging index if available + */ + if(PREDICT_TRUE(cnat_syslog_global_info.cnat_syslog_init_done)) { + + pool_foreach (my_syslog_info, cnat_syslog_logging_info_pool, ({ + if (my_syslog_info->i_vrf_id == i_vrf_id) { + logging_index = my_syslog_info - + cnat_syslog_logging_info_pool; + break; + } + })); + } + return (logging_index); +} + +void +cnat_set_vrf_params_with_default(cnat_vrfmap_t *my_vrfmap, u32 i_vrf, u32 i_vrf_id) +{ + + my_vrfmap->status = S_WAO; + + my_vrfmap->i_vrf = i_vrf; + my_vrfmap->i_vrf_id = i_vrf_id; + + my_vrfmap->o_vrf = INVALID_UIDX; + my_vrfmap->o_vrf_id = INVALID_VRFID; + +#ifndef NO_BULK_LOGGING + BULKSIZE_FROM_VRFMAP(my_vrfmap) = BULK_ALLOC_SIZE_NONE; +#endif /* #ifndef NO_BULK_LOGGING */ + my_vrfmap->tcp_mss = V4_TCP_MSS_NOT_CONFIGURED_VALUE; + my_vrfmap->frag_tout = CNAT_IPV4_FRAG_TIMEOUT_DEF; + my_vrfmap->port_limit = V4_DEF_VRF_MAX_PORTS; + my_vrfmap->nfv9_logging_index = + cnat_get_vrfmap_nfv9_logging_index(i_vrf_id); + my_vrfmap->syslog_logging_index = + cnat_get_vrfmap_syslog_logging_index(i_vrf_id); + + /* Copy logging policy from nfv9 info. */ + if(my_vrfmap->nfv9_logging_index != EMPTY) { + cnat_nfv9_logging_info_t *nfv9_logging_info = + cnat_nfv9_logging_info_pool + my_vrfmap->nfv9_logging_index; + my_vrfmap->nf_logging_policy = nfv9_logging_info->logging_policy; + } + if(my_vrfmap->syslog_logging_index != EMPTY) { + cnat_syslog_logging_info_t *syslog_logging_info = + cnat_syslog_logging_info_pool + my_vrfmap->syslog_logging_index; + my_vrfmap->syslog_logging_policy = syslog_logging_info->logging_policy; + } + #if 0 + printf("Initializing params in cnat_set_vrf_params_with_default\n" + "my_vrfmap->status = %u\n" + "my_vrfmap->tcp_mss = %u\n" + "my_vrfmap->i_vrf = %u\n" + "my_vrfmap->i_vrf_id = %u\n" + "my_vrfmap->o_vrf = %u\n" + "my_vrfmap->o_vrf_id = %u\n" + "my_vrfmap->bulk_size = %u\n" + "my_vrfmap->nfv9_logging_index = %u\n" + "my_vrfmap->syslog_logging_index = %u\n" + "my_vrfmap->frag_tout = %u\n" + "my_vrfmap->port_limit = %u\n" + "my_vrfmap->nf_logging_policy = %u\n" + "my_vrfmap->syslog_logging_policy = %u\n", + my_vrfmap->status, + my_vrfmap->tcp_mss, + my_vrfmap->i_vrf, + my_vrfmap->i_vrf_id, + my_vrfmap->o_vrf, + my_vrfmap->o_vrf_id, + my_vrfmap->bulk_size, + my_vrfmap->nfv9_logging_index, + my_vrfmap->syslog_logging_index, + my_vrfmap->frag_tout, + my_vrfmap->port_limit, + my_vrfmap->nf_logging_policy, + my_vrfmap->syslog_logging_policy); + #endif /* if 0 */ +} + +/* config command handlers */ +void cnat_nat44_add_vrf_map_t_handler(spp_api_cnat_v4_add_vrf_map_t *mp, + vlib_main_t *vm) +{ + void cnat_table_entry_fill_map(u32 start_addr, u32 end_addr, + cnat_portmap_v2_t **port_map_holder); + u32 start_addr, end_addr; + u32 pm_len __attribute__((unused)); + cnat_vrfmap_t *my_vrfmap = 0; + cnat_portmap_v2_t *pm = 0; + u16 i_vrf, o_vrf; + u32 ivrf_id, ovrf_id; + u16 my_vrfmap_index; + u8 i = 0; + + start_addr = mp->start_addr[0]; + end_addr = mp->end_addr[0]; + i_vrf = mp->i_vrf; + o_vrf = mp->o_vrf; + ovrf_id = mp->o_vrf_id; + ivrf_id = mp->i_vrf_id; + +#if DEBUG_NOT_COMMENTED + vlib_cli_output(vm, "%s: saddr[0x%x], eaddr[0x%x], i_vrf[0x%x], o_vrf[0x%x], " + "ovrf_id[0x%x], ivrf_id[0x%x]\n", __func__, start_addr, end_addr, + i_vrf, o_vrf, ovrf_id, ivrf_id); +#endif + if (start_addr > end_addr) { + vlib_cli_output(vm, "Add VRF Map failed start addr 0x%x > end addr 0x%x\n", + start_addr, end_addr); + return; + } + if ((end_addr - start_addr) > CNAT_MAX_ADDR_POOL_SIZE) { + vlib_cli_output(vm, "Add VRF Map failed start addr 0x%x - end addr " + "0x%x range > 65536\n", start_addr, end_addr); + return; + } + my_vrfmap_index = vrf_map_array[i_vrf]; + + if (my_vrfmap_index != VRF_MAP_ENTRY_EMPTY) { + + my_vrfmap = cnat_map_by_vrf + my_vrfmap_index; + + my_vrfmap->o_vrf = o_vrf; + my_vrfmap->i_vrf_id = ivrf_id; + my_vrfmap->o_vrf_id = ovrf_id; + } else { + /* + * first time add + */ + pool_get(cnat_map_by_vrf, my_vrfmap); + memset(my_vrfmap, 0, sizeof(*my_vrfmap)); + /* waiting for outside vrf */ + cnat_set_vrf_params_with_default(my_vrfmap, i_vrf, ivrf_id); + my_vrfmap->i_vrf = i_vrf; + my_vrfmap->o_vrf = o_vrf; + my_vrfmap->i_vrf_id = ivrf_id; + my_vrfmap->o_vrf_id = ovrf_id; +#ifndef NO_BULK_LOGGING + BULKSIZE_FROM_VRFMAP(my_vrfmap) = BULK_ALLOC_SIZE_NONE; +#endif /* #ifndef NO_BULK_LOGGING */ + + my_vrfmap->tcp_mss = V4_TCP_MSS_NOT_CONFIGURED_VALUE; + my_vrfmap->status = S_WA; + my_vrfmap->frag_tout = 0; /* currently setting it to 0 */ + my_vrfmap->port_limit = V4_DEF_VRF_MAX_PORTS; + vrf_map_array[i_vrf] = (my_vrfmap - cnat_map_by_vrf); + } + pm = my_vrfmap->portmap_list; + pm_len = vec_len(pm); + for(i=0; i < 1 ; i++) { + start_addr = mp->start_addr[i]; + end_addr = mp->end_addr[i]; + if((start_addr == 0) || (end_addr == 0)) + break; + + cnat_table_entry_fill_map(start_addr, end_addr, + &(my_vrfmap->portmap_list)); + } + my_vrfmap->status = S_RUN; + vlib_cli_output(vm, "Address Pool Config Successful !!\n"); + return; +} + +void cnat_nat44_set_protocol_timeout_value(u16 active, + u16 init, u8 *proto, u8 reset, vlib_main_t *vm) +{ + if (!strncmp((char *) proto, "tcp", 3)) { + tcp_initial_setup_timeout = (reset) ? V4_DEF_TCP_IS_TO : init; + tcp_active_timeout = (reset) ? V4_DEF_TCP_AS_TO : active; + + } else if (!strncmp((char *) proto, "udp", 3)) { + udp_init_session_timeout = (reset) ? V4_DEF_UDP_IS_TO : init; + udp_act_session_timeout = (reset) ? V4_DEF_UDP_AS_TO : active; + + } else if (!strncmp((char *) proto, "icmp", 4)) { + icmp_session_timeout = (reset) ? V4_DEF_ICMP_S_TO : active; + + } else { + vlib_cli_output(vm, "Error !! Unsupported protocol %s\n", proto); + } + return; +} + + + + +/* Show command handlers */ +void cnat_nat44_handle_show_stats(vlib_main_t *vm) +{ + pool_header_t *h; + u32 used, free; + cnat_vrfmap_t *my_vrfmap =0; + cnat_portmap_v2_t *pm =0, *my_pm = 0; + u32 i, pm_len; + struct in_addr ip; + void cnat_nfv9_show_collector + (vlib_main_t *vm, cnat_nfv9_logging_info_t *my_nfv9_logging_info); + + /* active translations */ + h = pool_header(cnat_main_db); + free = vec_len(h->free_indices); + used = vec_len(cnat_main_db) - free; + + vlib_cli_output(vm, "vCGN NAT44 Statistics :\n"); + vlib_cli_output(vm, "\tActive Translations : %u\n", + NAT44_COMMON_STATS.active_translations); + vlib_cli_output(vm, "\tTotal free translation entries : %u\n", free); + vlib_cli_output(vm, "\tTotal used translation entries : %u\n", used); + vlib_cli_output(vm, "\ti2o drops due to port limit exceeded : %lu\n", + in2out_drops_port_limit_exceeded); + vlib_cli_output(vm, "\ti2o drops due to system limit reached : %lu\n", + in2out_drops_system_limit_reached); + vlib_cli_output(vm, "\ti2o drops due to resource depletion : %lu\n", + in2out_drops_resource_depletion); + vlib_cli_output(vm, "\to2i drops due to no translations : %lu\n", + NAT44_COMMON_STATS.no_translation_entry_drops); + + vlib_cli_output(vm, "\tPool address usage:\n"); + vlib_cli_output(vm, "\t-------------------------------------------------\n"); + vlib_cli_output(vm, "\tExternal Address \tPorts Used\n"); + vlib_cli_output(vm, "\t-------------------------------------------------\n"); + + used = 0; + pool_foreach (my_vrfmap, cnat_map_by_vrf, ({ + pm = my_vrfmap->portmap_list; + pm_len = vec_len(pm); + for (i = 0; i < pm_len; i++) { + my_pm = pm + i; + if (my_pm->inuse) { + used++; + /* maximum of 200 addresses to be returned */ + if (used <= 200) { + ip.s_addr = ntohl(my_pm->ipv4_address); + vlib_cli_output(vm, "\t%s \t\t%u\n", inet_ntoa(ip), my_pm->inuse); + } + } + } + })); + return; +} + +void cnat_nat44_handle_show_config(vlib_main_t *vm) +{ + cnat_vrfmap_t * my_vrfmap; + cnat_portmap_v2_t *pm = 0; + cnat_portmap_v2_t *my_pm = 0; + u32 pm_len; + struct in_addr ip_addr; + u8 status_str[20]; + cnat_nfv9_logging_info_t *my_nfv9_logging_info, + *global_nfv9_logging_info = 0; + + vnet_hw_interface_t * hw; + vnet_main_t * vnm = vnet_get_main(); + + void cnat_nfv9_show_collector + (vlib_main_t *vm, cnat_nfv9_logging_info_t *my_nfv9_logging_info); + + vlib_cli_output(vm, "vCGN NAT44 Config:\n"); + vlib_cli_output(vm, "\tPort Limit : %u\n", cnat_main_db_max_ports_per_user); + vlib_cli_output(vm, "\ttotal address pool : %u\n", total_address_pool_allocated); + vlib_cli_output(vm, "\tdynamic port start range : %u\n", cnat_static_port_range); + + pool_foreach(my_vrfmap, cnat_map_by_vrf, ({ + hw = vnet_get_hw_interface (vnm, my_vrfmap->i_vrf); + vlib_cli_output(vm, "\tInside Interface : %v\n", hw->name); + hw = vnet_get_hw_interface (vnm, my_vrfmap->o_vrf); + vlib_cli_output(vm, "\tOutside Interface : %v\n", hw->name); + + memset(status_str, 0x00, sizeof(status_str)); + switch(my_vrfmap->status) { + case S_WAO: clib_memcpy(status_str, "S_WAO", 5); break; + case S_WA: clib_memcpy(status_str, "S_WA", 4); break; + case S_WO: clib_memcpy(status_str, "S_WO", 4); break; + case S_RUN: clib_memcpy(status_str, "ONLINE", 6); break; + case S_DEL: clib_memcpy(status_str, "S_DEL", 5); break; + default: clib_memcpy(status_str, "Invalid state", 13); + + } + vlib_cli_output(vm, + "\tAddress pool map table status : %s\n", status_str); + + pm = my_vrfmap->portmap_list; + pm_len = vec_len(pm); + my_pm = pm; + ip_addr.s_addr = clib_net_to_host_u32(my_pm->ipv4_address); + vlib_cli_output(vm, + "\tStart Address : %s\n", inet_ntoa(ip_addr)); + my_pm = pm + (pm_len - 1); + ip_addr.s_addr = clib_net_to_host_u32(my_pm->ipv4_address); + vlib_cli_output(vm, + "\tEnd Address : %s\n", inet_ntoa(ip_addr)); + + })); + vlib_cli_output(vm, + "\ttcp init timeout : %u sec\n", tcp_initial_setup_timeout); + vlib_cli_output(vm, + "\ttcp active timeout : %u sec\n", tcp_active_timeout); + vlib_cli_output(vm, + "\tudp init timeout : %u sec\n", udp_init_session_timeout); + vlib_cli_output(vm, + "\tudp active timeout : %u sec\n", udp_act_session_timeout); + vlib_cli_output(vm, + "\ticmp session timeout: %u sec\n", icmp_session_timeout); + +#if 0 + if (cnat_nfv9_global_info.cnat_nfv9_global_collector_index != EMPTY) { + vlib_cli_output(vm,"\nGloabal NFV9 Collector :"); + global_nfv9_logging_info = cnat_nfv9_logging_info_pool + + cnat_nfv9_global_info.cnat_nfv9_global_collector_index; + cnat_nfv9_show_collector(vm, global_nfv9_logging_info); + } +#endif + + vlib_cli_output(vm, "\nNFV9 Collector :"); + if (cnat_nfv9_logging_info_pool !=NULL) { + pool_foreach (my_nfv9_logging_info, cnat_nfv9_logging_info_pool, ({ + if (my_nfv9_logging_info != global_nfv9_logging_info) { + cnat_nfv9_show_collector(vm, my_nfv9_logging_info); + vlib_cli_output(vm, "\n"); + } + })); + } else { + vlib_cli_output(vm, "\n"); + } + + return; +} + +/* + * Check if the request flag matches the entry flags and + * if so return "1" + * + * entry_flag_ptr is an output parameter - it returns the flags + * corresponding to the translation entry + */ +static u8 cnat_v4_show_verify_display_entry ( + u16 request_flag, + cnat_main_db_entry_t *db, + u16 *entry_flag_ptr) +{ + u8 display_entry = 0; + + /* + * This should never happen + */ + if (!entry_flag_ptr) { + return (display_entry); + } + + *entry_flag_ptr = 0; + + if ((db->flags & CNAT_DB_FLAG_STATIC_PORT) + &&(db->flags & CNAT_DB_FLAG_ALG_ENTRY)) { + *entry_flag_ptr |= CNAT_TRANSLATION_ENTRY_STATIC; + *entry_flag_ptr |= CNAT_TRANSLATION_ENTRY_ALG; + } else if (db->flags & CNAT_DB_FLAG_STATIC_PORT) { + *entry_flag_ptr |= CNAT_TRANSLATION_ENTRY_STATIC; + } else if ((db->flags & CNAT_DB_FLAG_ALG_ENTRY) || + (db->flags & CNAT_DB_FLAG_PPTP_GRE_ENTRY)) { + *entry_flag_ptr |= CNAT_TRANSLATION_ENTRY_ALG; + } else if (db->flags & CNAT_DB_FLAG_PCPI) { + *entry_flag_ptr |= CNAT_TRANSLATION_ENTRY_PCPI_DYNAMIC; + } else if (db->flags & CNAT_DB_FLAG_PCPE) { + *entry_flag_ptr |= CNAT_TRANSLATION_ENTRY_PCPE_DYNAMIC; + } else { + *entry_flag_ptr |= CNAT_TRANSLATION_ENTRY_DYNAMIC; + } + + if (request_flag == CNAT_TRANSLATION_ENTRY_ALL) { + display_entry = 1; + } else { + /* + * Check if the request_flag is STATIC or ALG + * and the entry is STATIC or ALG as well + */ + if ((request_flag & CNAT_TRANSLATION_ENTRY_STATIC) && + (*entry_flag_ptr & CNAT_TRANSLATION_ENTRY_STATIC)) { + display_entry = 1; + } + + if ((request_flag & CNAT_TRANSLATION_ENTRY_ALG) && + (*entry_flag_ptr & CNAT_TRANSLATION_ENTRY_ALG)) { + display_entry = 1; + } + + if ((request_flag & CNAT_TRANSLATION_ENTRY_PCPI_DYNAMIC) && + (*entry_flag_ptr & CNAT_TRANSLATION_ENTRY_PCPI_DYNAMIC)) { + display_entry = 1; + } + + if ((request_flag & CNAT_TRANSLATION_ENTRY_PCPE_DYNAMIC) && + (*entry_flag_ptr & CNAT_TRANSLATION_ENTRY_PCPE_DYNAMIC)) { + display_entry = 1; + } + + /* + * For dynamic entry case, check if flags field is 0 + */ + if ((request_flag & CNAT_TRANSLATION_ENTRY_DYNAMIC) && + (*entry_flag_ptr & CNAT_TRANSLATION_ENTRY_DYNAMIC)) { + display_entry = 1; + } + } + + if (PREDICT_FALSE(show_debug_level > 2)) { + PLATFORM_DEBUG_PRINT("Entry (0x%x, %d) -> (0x%x, %d) request_flag 0x%x, entry_flag 0x%x, display_entry %d\n", db->in2out_key.k.ipv4, db->in2out_key.k.port, db->out2in_key.k.ipv4, db->out2in_key.k.port, request_flag, *entry_flag_ptr, display_entry); + } + + return (display_entry); +} +void cnat_v4_show_inside_entry_req_t_handler +(spp_api_cnat_v4_show_inside_entry_req_t *mp, vlib_main_t * vm) +{ + cnat_user_db_entry_t *udb = NULL; + cnat_main_db_entry_t *db = NULL; + cnat_db_key_bucket_t u_ki, ki; + u64 a, b, c; + u32 index; + u16 start_port, end_port, port; + u16 request_flag = 0; + u16 entry_flag = 0; + u8 num_entries = 0; + u8 proto, all; + u8 done = 0; + cnat_v4_show_translation_entry *entry_list; + cnat_v4_show_translation_entry entry[PLATFORM_MAX_TRANSLATION_ENTRIES]; + u8 display_entry; + u8 flag_str[11]; + vnet_hw_interface_t * hw; + vnet_main_t * vnm = vnet_get_main(); + + ki.k.k.ipv4 = mp->ipv4_addr; + ki.k.k.vrf = mp->vrf_id; + start_port = mp->start_port; + end_port = mp->end_port; +#if DEBUG + vlib_cli_output(vm, "## proto %d, inside-addr 0x%x, start_port %u, " + "end_port %u, vrf 0x%x, flag 0x%x\n", + mp->protocol, + mp->ipv4_addr, + mp->start_port, + mp->end_port, + mp->vrf_id, + mp->flags); +#endif + + proto = mp->protocol; + ki.k.k.vrf |= ((u16)proto << CNAT_PRO_SHIFT); + + all = mp->all_entries; /* for no port range case */ + request_flag = mp->flags; /* for all, alg, static entries case */ + entry_list = entry; + + /* + * check if the address is belonging to this core + */ + + + /* + * first we check if the user exists in the udb, if he is not then + * it does not make sense to check the main db for translations + */ + u_ki.k.k.vrf = ki.k.k.vrf & CNAT_VRF_MASK; + u_ki.k.k.ipv4 = ki.k.k.ipv4; + u_ki.k.k.port = 0; + + if (PREDICT_FALSE(show_debug_level > 0)) { + vlib_cli_output(vm, "\nI_TRANS_CORE %d: IPv4 0x%x, VRF 0x%x, " + "start_port %d, end_port %d", + my_instance_number, ki.k.k.ipv4, + ki.k.k.vrf, start_port, end_port); + } + + udb = cnat_user_db_lookup_entry(&u_ki); + if (!udb) { + if (PREDICT_FALSE(show_debug_level > 0)) { + vlib_cli_output(vm, "\nReturning %d entries", + num_entries); + } + return; + } + + if (all) { + #if 0 + if (PREDICT_FALSE(show_debug_level > 0)) { + PLATFORM_DEBUG_PRINT("\nI_TRANS: Printing ALL\n"); + } + + /* + * get the head of list of translation entries for that user + * from the user db + */ + head = udb->translation_list_head_index; + db = cnat_main_db + head; + + while (num_entries < PLATFORM_MAX_TRANSLATION_ENTRIES) { + + if (((db->in2out_key.k.vrf & CNAT_PRO_MASK) >> CNAT_PRO_SHIFT) + != proto) { + goto next_entry; + } + + display_entry = + spp_api_cnat_v4_show_verify_display_entry(request_flag, db, + &entry_flag); + + if (display_entry) { + entry_list->ipv4_addr = + spp_host_to_net_byte_order_32(db->out2in_key.k.ipv4); + entry_list->cnat_port = + spp_host_to_net_byte_order_16(db->out2in_key.k.port); + entry_list->src_port = + spp_host_to_net_byte_order_16(db->in2out_key.k.port); + + entry_list->protocol = proto; + + /* incase of gre - in2out is not accounted */ + if(proto != CNAT_PPTP) { + + entry_list->in2out_packets = + spp_host_to_net_byte_order_32(db->in2out_pkts); + } else { + entry_list->in2out_packets = 0; + } + entry_list->out2in_packets = + spp_host_to_net_byte_order_32(db->out2in_pkts); + + entry_list->flags = + spp_host_to_net_byte_order_16(entry_flag); + + num_entries++; + entry_list = entry_list + 1; + } +next_entry: + db = cnat_main_db + db->user_ports.next; + /* + * its a circular list, so if we have reached the head again + * all the entries for that user have been read + */ + if (db == (cnat_main_db + head)) { + break; + } + } + resp->num_entries = num_entries; + #endif /* if 0 */ + } else { + if (PREDICT_FALSE(show_debug_level > 0)) { + vlib_cli_output(vm, "\nI_TRANS: Printing range %d .. %d\n", + start_port, end_port); + } + /* + * port range is specified so for each port calculate the hash and + * check if the entry is present in main db + */ + port = start_port; + done = 0; + while ((!done) && (num_entries < PLATFORM_MAX_TRANSLATION_ENTRIES)) { + + ki.k.k.port = port; + if (port >= end_port) { + done = 1; + } else { + port++; + } + CNAT_V4_GET_HASH(ki.k.key64, + ki.bucket, + CNAT_MAIN_HASH_MASK); + index = cnat_in2out_hash[ki.bucket].next; + if (PREDICT_TRUE(index == EMPTY)) { + continue; + } + + do { + db = cnat_main_db + index; + if (db->in2out_key.key64 == ki.k.key64) { + break; + } + index = db->in2out_hash.next; + } while (index != EMPTY); + + if (index == EMPTY) { + continue; + } else { + + display_entry = + cnat_v4_show_verify_display_entry(request_flag, db, + &entry_flag); + if (display_entry) { + + entry_list->ipv4_addr = + clib_host_to_net_u32(db->out2in_key.k.ipv4); + entry_list->cnat_port = + clib_host_to_net_u16(db->out2in_key.k.port); + entry_list->src_port = + clib_host_to_net_u16(db->in2out_key.k.port); + + entry_list->protocol = proto; + entry_list->nsessions = db->nsessions; + entry_list->flags = ((db->flags & CNAT_DB_FLAG_TCP_ACTIVE) || + (db->flags & CNAT_DB_FLAG_UDP_ACTIVE)) ? 1:0; + /* incase of gre - in2out is not accounted */ + if(proto != CNAT_PPTP) { + entry_list->in2out_packets = + clib_host_to_net_u32(db->in2out_pkts); + } else { + entry_list->in2out_packets = 0; + } + + entry_list->out2in_packets = + clib_host_to_net_u32(db->out2in_pkts); + + if (PREDICT_FALSE(show_debug_level > 3)) { + vlib_cli_output(vm, "\n1. Entry: Addr 0x%x, port %d, num_entries %d", + clib_net_to_host_u32(entry_list->ipv4_addr), + clib_net_to_host_u16(entry_list->cnat_port), + num_entries); + } + + entry_list = entry_list + 1; + num_entries++; + } + } /* if (index == EMPTY) */ + } /* while() */ + } + + if (PREDICT_FALSE(show_debug_level > 0)) { + if (num_entries) { + vlib_cli_output(vm, "\nReturning %d entries\n", + num_entries); + } + } + + entry_list = entry; + u8 i = 0; + struct in_addr ip; + u8 proto_str[10]; + u8 transl_str[10]; + memset(proto_str, 0x00, 10); + memset(transl_str, 0x00, 10); + + if (proto == 1) strncpy((char *)proto_str, "udp", 3); + else if (proto == 2) strncpy((char *)proto_str, "tcp", 3); + else if (proto == 3) strncpy((char *)proto_str, "icmp", 4); + else strncpy((char *)proto_str, "unknown", 7); + + if (request_flag == 0x04) strncpy((char *)transl_str, "Dynamic", 7); + else strncpy((char *)transl_str, "Unknown", 7); /* currently we are not supporting static/alg entries */ + + ip.s_addr = clib_net_to_host_u32(u_ki.k.k.ipv4); + hw = vnet_get_hw_interface (vnm, u_ki.k.k.vrf); + + vlib_cli_output (vm, "Inside-translation details\n"); + vlib_cli_output (vm, "--------------------------\n"); + + vlib_cli_output (vm, "Inside interface : %s\n", hw->name); + vlib_cli_output (vm, "Inside address : %s\n", inet_ntoa(ip)); + vlib_cli_output (vm, "Start port : %u\n", start_port); + vlib_cli_output (vm, "End port : %u\n", end_port); + + vlib_cli_output (vm, "--------------------------------------------------------------------------------------" + "-----------------------\n"); + vlib_cli_output (vm, "Outside Protocol Inside Outside Translation" + " I2O O2I Flag Num\n"); + vlib_cli_output (vm, "Address Src Port Src Port Type " + " Pkts Pkts Sessions\n"); + vlib_cli_output (vm, "--------------------------------------------------------------------------------------" + "-----------------------\n"); + + while ((num_entries) && (entry_list) && (i < 50)) { + + ip.s_addr = entry_list->ipv4_addr; + memset(flag_str,0x00,11); + if((proto == 1) || (proto == 2)) { + if(entry_list->flags == 1) { + strncpy((char *)flag_str,"Active",6); + } + else { + strncpy((char *) flag_str,"Non Active",10); + } + } else { + strncpy((char *) flag_str, "NA", 2); + } + vlib_cli_output(vm, "%s %10s %11u %12u %13s %10u %10u %14s %6u\n", + inet_ntoa(ip), proto_str, + clib_net_to_host_u16(entry_list->src_port), + clib_net_to_host_u16(entry_list->cnat_port), + transl_str, + clib_net_to_host_u32(entry_list->in2out_packets), + clib_net_to_host_u32(entry_list->out2in_packets), + flag_str, + entry_list->nsessions); + entry_list++; + num_entries--; i++; + } + + return; +} + +void cnat_v4_show_outside_entry_req_t_handler +(spp_api_cnat_v4_show_outside_entry_req_t *mp, vlib_main_t *vm) +{ + cnat_main_db_entry_t *db = NULL; + cnat_db_key_bucket_t ko; + u64 a, b, c; + u32 index; + u16 start_port, end_port, port; + u16 request_flag = 0; + u16 entry_flag = 0; + u8 num_entries = 0; + u8 proto; + cnat_v4_show_translation_entry *entry_list; + cnat_v4_show_translation_entry entry[PLATFORM_MAX_TRANSLATION_ENTRIES]; + u8 done = 0; + u8 display_entry; + u8 flag_str[11]; + vnet_hw_interface_t * hw; + vnet_main_t * vnm = vnet_get_main(); + + ko.k.k.ipv4 = mp->ipv4_addr; + ko.k.k.vrf = mp->vrf_id; + start_port = mp->start_port; + end_port = mp->end_port; + + proto = mp->protocol; + request_flag = mp->flags; + + ko.k.k.vrf |= ((u16)proto << CNAT_PRO_SHIFT); + + entry_list = entry; + + if (PREDICT_FALSE(show_debug_level > 0)) { + vlib_cli_output(vm, "\nO_TRANS_CORE %d: IPv4 0x%x, VRF 0x%x, " + "start_port %d, end_port %d", my_instance_number, + ko.k.k.ipv4, ko.k.k.vrf, start_port, end_port); + } + + /* + * for each ip and port combination we need to scan the main db + * and check if the entry is present in main db + */ + port = start_port; + done = 0; + while ((!done) && (num_entries < PLATFORM_MAX_TRANSLATION_ENTRIES)) { + ko.k.k.port = port; + + /* + * If we have reached the end_port, we are DONE + */ + if (port >= end_port) { + done = 1; + } else { + port++; + } + + CNAT_V4_GET_HASH(ko.k.key64, + ko.bucket, + CNAT_MAIN_HASH_MASK); + + index = cnat_out2in_hash[ko.bucket].next; + if (PREDICT_TRUE(index == EMPTY)) { + continue; + } + + do { + db = cnat_main_db + index; + if (db->out2in_key.key64 == ko.k.key64) { + break; + } + index = db->out2in_hash.next; + } while (index != EMPTY); + + if (index == EMPTY) { + continue; + } else { + display_entry = + cnat_v4_show_verify_display_entry(request_flag, db, + &entry_flag); + + if (display_entry) { + entry_list->ipv4_addr = + clib_host_to_net_u32(db->in2out_key.k.ipv4); + entry_list->cnat_port = + clib_host_to_net_u16(db->out2in_key.k.port); + entry_list->src_port = + clib_host_to_net_u16(db->in2out_key.k.port); + entry_list->protocol = proto; + entry_list->nsessions = db->nsessions; + entry_list->flags = ((db->flags & CNAT_DB_FLAG_TCP_ACTIVE) || + (db->flags & CNAT_DB_FLAG_UDP_ACTIVE)) ? 1:0; + /* incase of gre - in2out is not accounted */ + if(proto != CNAT_PPTP) { + entry_list->in2out_packets = + clib_host_to_net_u32(db->in2out_pkts); + } else { + entry_list->in2out_packets = 0 ; + } + entry_list->out2in_packets = + clib_host_to_net_u32(db->out2in_pkts); + #if 0 + entry_list->flags = + clib_host_to_net_u16(entry_flag); + #endif + entry_list = entry_list + 1; + num_entries++; + } + } + } + + if (num_entries == 0) { + /* No point proceeding further */ + return; + } + + if (PREDICT_FALSE(show_debug_level > 0)) { + if (num_entries) { + vlib_cli_output(vm, "\nO_TRANS: Core %d returning %d entries", + num_entries); + } + } + + entry_list = entry; + u8 i = 0; + struct in_addr ip; + u8 proto_str[10]; + u8 transl_str[10]; + memset(proto_str, 0x00, 10); + memset(transl_str, 0x00, 10); + + if (proto == 1) strncpy((char *) proto_str, "udp", 3); + else if (proto == 2) strncpy((char *) proto_str, "tcp", 3); + else if (proto == 3) strncpy((char *) proto_str, "icmp", 4); + else strncpy((char *) proto_str, "unknown", 7); + + if (request_flag == 0x04) strncpy((char *) transl_str, "Dynamic", 7); + else strncpy((char *)transl_str, "Unknown", 7); /* currently we are not supporting static/alg entries */ + + ip.s_addr = clib_net_to_host_u32(ko.k.k.ipv4); + hw = vnet_get_hw_interface (vnm, (ko.k.k.vrf & CNAT_VRF_MASK)); + + vlib_cli_output (vm, "Outside-translation details\n"); + vlib_cli_output (vm, "--------------------------\n"); + + vlib_cli_output (vm, "Outside interface : %s\n", hw->name); + vlib_cli_output (vm, "Outside address : %s\n", inet_ntoa(ip)); + vlib_cli_output (vm, "Start port : %u\n", start_port); + vlib_cli_output (vm, "End port : %u\n", end_port); + + vlib_cli_output (vm, "--------------------------------------------------------------------------------------" + "-----------------------\n"); + vlib_cli_output (vm, "Inside Protocol Outside Inside Translation" + " I2O O2I Flag Num\n"); + vlib_cli_output (vm, "Address Dst Port Dst Port Type " + " Pkts Pkts Sessions\n"); + vlib_cli_output (vm, "--------------------------------------------------------------------------------------" + "-----------------------\n"); + + while ((num_entries) && (entry_list) && (i < 50)) { + ip.s_addr = entry_list->ipv4_addr; + memset(flag_str,0x00,11); + if((proto == 1) || (proto == 2)) { + if(entry_list->flags == 1) { + strncpy((char *) flag_str,"Active",6); + } + else { + strncpy((char *) flag_str,"Non Active",10); + } + } else { + strncpy((char *) flag_str, "NA", 2); + } + vlib_cli_output(vm, "%s %10s %11u %12u %13s %10u %10u %14s %6u\n", + inet_ntoa(ip), proto_str, + clib_net_to_host_u16(entry_list->cnat_port), + clib_net_to_host_u16(entry_list->src_port), + transl_str, + clib_net_to_host_u32(entry_list->in2out_packets), + clib_net_to_host_u32(entry_list->out2in_packets), + flag_str, + entry_list->nsessions); + entry_list++; + num_entries--; i++; + + } + return; +} diff --git a/plugins/vcgn-plugin/vcgn/cnat_common_api.h b/plugins/vcgn-plugin/vcgn/cnat_common_api.h new file mode 100644 index 00000000..a4eb7443 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_common_api.h @@ -0,0 +1,22 @@ +/*--------------------------------------------------------------------------- + * Copyright (c) 2009-2014 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *--------------------------------------------------------------------------- + */ +#ifndef __CNAT_COMMON_API_H__ +#define __CNAT_COMMON_API_H__ + +/* All common API prototypes */ +void cnat_scanner_db_process_turn_on(vlib_main_t *vm); + +#endif diff --git a/plugins/vcgn-plugin/vcgn/cnat_config.c b/plugins/vcgn-plugin/vcgn/cnat_config.c new file mode 100644 index 00000000..87183dfa --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_config.c @@ -0,0 +1,77 @@ +/* + *------------------------------------------------------------------ + * cnat_config.c - configuration definitions + * + * Copyright (c) 2007-2012 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ +#include "cnat_config.h" +#include "cnat_cli.h" +#include "cnat_v4_pptp_alg.h" +#include "platform_common.h" + +/* session timeout */ + +u16 tcp_initial_setup_timeout = V4_DEF_TCP_IS_TO; /* sec */ +u16 tcp_active_timeout = V4_DEF_TCP_AS_TO; /* sec */ +u16 udp_init_session_timeout = V4_DEF_UDP_IS_TO; /* 30 sec */ +u16 udp_act_session_timeout = V4_DEF_UDP_AS_TO; /* 2 min */ +u16 icmp_session_timeout = V4_DEF_ICMP_S_TO; /* 60 sec */ + +cnat_pptp_config_t pptp_cfg = + { + .enable = PPTP_DISABLED, + .timeout = PPTP_GRE_TIMEOUT + } ; + +/* This flag is used as indication of timeout related config + * changes and hence db needs to be updated + */ +u8 timeout_dirty_flag = 0; + +/* mapping refresh direction, + * 1 inbound and outbound refresh + */ +u8 mapping_refresh_both_direction = V4_DEF_ENABLE; + +u16 cnat_main_db_max_ports_per_user = V4_DEF_MAX_PORTS; + +u32 cnat_main_db_icmp_rate_limit = DEF_RATE_LIMIT; +u32 cnat_main_db_icmp_rate_limit_core = DEF_RATE_LIMIT_CORE; +u32 crc_zero_udp_rate_limit_core = RATE_LIMIT_UDP_CORE; +u16 cnat_static_port_range = CNAT_DEF_STATIC_PORT_RANGE; + + +/* + * ftp alg enable + */ +u8 ftp_alg_enabled = V4_DEF_DISABLE; +u16 rtsp_alg_port_num = 0; + +/* + * load balancing debug mode + */ +u8 lb_debug_enable = V4_DEF_DISABLE; + + +/* good or evil mode + * 0 endpoint-independnet filter, good mode + * 1 address depedent filter, evil mode + */ +u8 address_dependent_filtering = V4_DEF_DISABLE; + +u16 per_user_icmp_msg_limit = ICMP_MSG_RATE_LIMIT; + +u16 config_delete_timeout = V4_CONFIG_DELETE_TO; + diff --git a/plugins/vcgn-plugin/vcgn/cnat_config.h b/plugins/vcgn-plugin/vcgn/cnat_config.h new file mode 100644 index 00000000..f1042737 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_config.h @@ -0,0 +1,582 @@ +/* + *------------------------------------------------------------------ + * cnat_config.h - configuration database definitions + * + * Copyright (c) 2007-2013 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ + +#ifndef __CNAT_CONFIG_H__ +#define __CNAT_CONFIG_H__ + +#include <vlib/vlib.h> +#include <vnet/vnet.h> + +#include "cnat_bulk_port_defs.h" + +/* default policy value */ +#define V4_DEF_ICMP_S_TO 60 /*icmp session timeout */ +#define V4_DEF_UDP_IS_TO 30 /*udp init session timeout */ +#define V4_DEF_UDP_AS_TO 120 /*udp active session timeout */ +#define V4_DEF_TCP_IS_TO 120 /*tcp init session timeout */ +#define V4_DEF_TCP_AS_TO 1800 /*tcp active session timeout, 30 min */ +#define V4_DEF_TCP_MSS 1460 /*tcp mss */ +#define V4_DEF_MAX_PORTS 100 /*max port limit per user */ +#define DEF_RATE_LIMIT PLATFORM_MAX_CORES /* No of packets/sec icmp generated */ +#define DEF_RATE_LIMIT_CORE 1 /* No of packets/sec icmp generated (per core) */ +#define RATE_LIMIT_UDP_CORE 1000 /* Max allowed udp crc zero packets/sec/core */ + +#define NAT44_RESERVED_INST_ID 1 +#define DSLITE_START_ID (NAT44_RESERVED_INST_ID + 1) +#define V4_DEF_VRF_MAX_PORTS 0 /*max port limit per vrf user; + 0 means use the global port limit for user*/ +/*Hardcoded . TBD - can be made configurable */ + +#define V4_DEF_ENABLE 1 /* feature enable */ +#define V4_DEF_DISABLE 0 /* feature disable */ + +#define CNAT_DEF_STATIC_PORT_RANGE 1024 /* Default range for static ports */ +/* + * If TCP MSS is not configured, store the maximum possible value + */ +#define V4_TCP_MSS_NOT_CONFIGURED_VALUE 0xffff + +/* default timeout for fragments in seconds set to 2 + * in case its not configured + */ +#define CNAT_IPV4_FRAG_TIMEOUT_DEF 2 +/* other */ +/* max db entries to be scaned */ +#define MAX_DB_ENTRY_PER_SCAN PLATFORM_MAX_DB_ENTRY_PER_SCAN +/* max db entries selected per scan */ +#define MAX_DB_ENTRY_SELECTED_PER_SCAN PLATFORM_MAX_DB_ENTRY_SELECTED_PER_SCAN + +#define ICMP_MSG_RATE_LIMIT 3 /* rate limit for icmp message */ +#define V4_CONFIG_DELETE_TO 600 /* timeout for entry to be deleted */ + +/* session timeout */ + +extern u16 tcp_initial_setup_timeout; +extern u16 tcp_active_timeout; +extern u16 udp_init_session_timeout; +extern u16 udp_act_session_timeout; +extern u16 icmp_session_timeout; + +extern u8 timeout_dirty_flag; + +/* mapping refresh direction, + * 0 outbound only refresh, + * 1 inbound and outbound refresh + */ +extern u8 mapping_refresh_both_direction; + + +extern u16 cnat_main_db_max_ports_per_user; +extern u32 cnat_main_db_icmp_rate_limit; +extern u32 cnat_main_db_icmp_rate_limit_core; +extern u32 crc_zero_udp_rate_limit_core; + +extern u16 cnat_static_port_range; + +typedef enum { + LOG_FORMAT_UNDEFINED =0, + LOG_FORMAT_COMPACT, + LOG_FORMAT_NF9, + LOG_FORMAT_MAX, /* keep this as last */ +} log_format_t; + +typedef enum { + CNAT_CONFIG_DEL_OP = 0, + CNAT_CONFIG_ADD_OP, +} cnat_op_flag_t; + +extern u8 ftp_alg_enabled; +extern u16 rtsp_alg_port_num; + +/* + * load balancing debug mode + */ +extern u8 lb_debug_enable; + +/* good or evil mode + * 0 endpoint-independnet filter, good mode + * 1 address depedent filter, evil mode + */ +extern u8 address_dependent_filtering; + +extern u16 per_user_icmp_msg_limit; + +/* vrfmap or portmap holding time + * after delete + */ +extern u16 config_delete_timeout; + +/* + * Bit map for various configuration in the POLICY KNOB case + */ +#define BIDIR_REFRESH_ENABLE 0x01 +#define BIDIR_REFRESH_DISABLE 0x02 +#define FTP_ALG_ENABLE 0x04 +#define FTP_ALG_DISABLE 0x08 +#define DEFAULT_NFV9_LOGGING_SERVER_ENABLE 0x10 +#define DEFAULT_NFV9_LOGGING_SERVER_DISABLE 0x20 + + +/* + * This structure contains a single VRF map configuration + * from a bulk message. This structure is in conformanace + * with the following structures defined in cnat_config_api.h + * - spp_api_cnat_v4_bulk_vrf_map_t + * + * Any change in the above structures should be propagated here + */ +typedef struct _spp_api_cnat_v4_single_vrf_map_req { + u32 i_vrf_id; + u32 o_vrf_id; + + u16 i_vrf; + u16 o_vrf; + + u32 start_addr; + u32 end_addr; + + u16 vrf_policy_enable; +#define TCP_MSS_ENABLE 0x0001 +#define TCP_MSS_DISABLE 0x0002 +#define NFV9_LOGGING_ENABLE 0x0004 +#define NFV9_LOGGING_DISABLE 0x0008 +#define VRF_MAP_DELETE 0x0010 +#define VRF_MAP_ADD 0x0020 +#define BULK_ALLOC_CHANGE 0x0040 + + u16 tcp_mss_value; + u32 vrf_nfv9_logging_ipv4_address; + u16 vrf_nfv9_logging_udp_port; + u16 vrf_nfv9_refresh_rate; + u16 vrf_nfv9_timeout_rate; + u16 vrf_nfv9_path_mtu; +#ifndef NO_BULK_LOGGING + bulk_alloc_size_t bulk_size; +#endif /* NO_BULK_LOGGING */ +} spp_api_cnat_v4_single_vrf_map_req; + +typedef struct _spp_api_cnat_v4_single_vrf_map_rc { + u8 vrf_map_rc; + u8 tcp_mss_rc; + u8 nfv9_logging_rc; + u8 pad; +} spp_api_cnat_v4_single_vrf_map_rc; + +/* + * Bulk Response for the VRF map request + */ +typedef struct _spp_api_cnat_v4_bulk_vrf_map_resp { + u16 _spp_msg_id; + u8 bulk_rc; + u8 pad; + + u32 num_vrfmap_entries; + + spp_api_cnat_v4_single_vrf_map_rc vrf_map_rc; + +} spp_api_cnat_v4_bulk_vrf_map_resp; + +/* + * Bulk Response for the Policy Knob request + */ +typedef struct _spp_api_cnat_v4_bulk_policy_knob_resp { + u16 _spp_msg_id; + u8 bulk_rc; /* Global rc code */ + u8 pad; + + u8 port_limit_rc; + u8 icmp_timeout_rc; + u8 udp_init_timeout_rc; + u8 udp_act_timeout_rc; + + u8 tcp_init_timeout_rc; + u8 tcp_act_timeout_rc; + u8 nfv9_logging_rc; + u8 pad2; +} spp_api_cnat_v4_bulk_policy_knob_resp; + + +/* PPTP ALG defs and structures */ + +/* dont change the order.. + maintened at offset mapped to msg ids */ + +typedef struct pptp_ctrl_msg_ctrs_t { + u64 dummy; + u64 sccr; + u64 sccrp; + u64 stccrq; + u64 stccrp; + u64 erq; + u64 erp; + u64 ocrq; + u64 ocrp; + u64 icrq; + u64 icrp; + u64 iccn; + u64 cclr; + u64 cdn; + u64 wen; + u64 sli; +}pptp_ctrl_msg_ctrs_t; + +#define PPTP_INCR(ctr) pptp_cfg.counters.pptp_##ctr++ +#define PPTP_DECR(ctr) pptp_cfg.counters.pptp_##ctr-- + +typedef struct pptp_counters_t { + + u64 pptp_ctrl_msg_drops; + u64 pptp_active_tunnels; + u64 pptp_active_channels; + u64 pptp_in2out_gre_drops; + u64 pptp_out2in_gre_drops; + u64 pptp_in2out_gre_fwds; + u64 pptp_out2in_gre_fwds; + pptp_ctrl_msg_ctrs_t ctrl_ctrs; + +} pptp_counters_t; + +#define CNAT_PPTP_ENABLE 1 +#define CNAT_PPTP_DEF_TIMEOUT 60 /* secs */ + +typedef struct cnat_pptp_config_t { + u8 enable; + u16 timeout; + pptp_counters_t counters; + +} cnat_pptp_config_t; + + +#define CNAT_PPTP_ENABLE_FLAG 0x01 +#define CNAT_PPTP_TIMEOUT_FLAG 0x02 + +/* pptp config msg resp */ +typedef struct _spp_api_cnat_v4_config_pptp_alg_resp { + u16 _spp_msg_id; + u8 bulk_rc; + u8 pad; + +} spp_api_cnat_v4_config_pptp_alg_resp_t; + +typedef struct { + u16 msg_id; + u8 rc; + u8 pad[5]; + + /* better to have a group structures rather than individual + variables, any change in counters is will automatically + reflect here */ + pptp_counters_t counters; +} pptp_show_counters_resp_t ; + + +extern cnat_pptp_config_t pptp_cfg; + + +/* ========= 6RD declarations =============================== */ + +#define V6RD_ENTRY_DELETE 0x00 +#define IPV4_TUNNEL_SRC_CONFIG 0x04 +#define TUNNEL_MTU_CONFIG 0x08 +#define IPV4_PREFIXMASK_LEN_CONFIG 0x10 +#define IPV4_SUFFIXMASK_LEN_CONFIG 0x20 +#define TTL_CONFIG 0x40 +#define TOS_CONFIG 0x80 +#define V6RD_IPV6_PREFIX_CONFIG 0x100 +#define V6RD_RESET_DF_BIT_CONFIG 0x200 +#define V6RD_UNICAST_ADDR_CONFIG 0x400 +#define V6RD_REASSEMB_CONFIG 0x800 + +#define TTL_ENABLE 0x1 +#define TOS_ENABLE 0x2 +#define RESET_DF_BIT 0x4 +#define REASSEMBLY_ENABLE 0x8 + +/* ========= 6RD declarations =============================== */ + +/* + * Single Request for XLAT config + */ +typedef struct _spp_api_cnat_v4_single_xlat_config_req { + + /* + * Indicates the xlat instance id - How big will this value be + * Can we restrict it between 0..255, that way the APP code + * can use an array to store the xlat instances. + */ + u32 xlat_id; + +#define XLAT_ENTRY_DELETE 0x0000 +#define IPV6_SVI_IF_NUM_CONFIG 0x0001 +#define IPV4_SVI_IF_NUM_CONFIG 0x0002 +#define IPV4_TO_IPV6_TCP_MSS_CONFIG 0x0004 +#define IPV6_TO_IPV4_TCP_MSS_CONFIG 0x0008 +#define IPV6_PREFIX_CONFIG 0x0010 +#define IPV6_UBIT_ON_CONFIG 0x0020 +#define IPV6_NON_TRANSLATABLE_PREFIX_MAP_CONFIG 0x0040 +#define IPV4_TOS_SETTING_CONFIG 0x0080 +#define IPV6_TOS_SETTING_CONFIG 0x0100 +#define IPV4_DFBIT_CLEAR_CONFIG 0x0200 +#define ICMPV6_PTB_MTU_SET_CONFIG 0x0400 +#define IPV6_NON_TRANSLATABLE_PREFIX_MAP_ALG_CONFIG 0x0800 +#define CPE_V4_PREFIX_CONFIG 0x1000 /* for map-t */ +#define CPE_V6_PREFIX_CONFIG 0x2000 /* for map-t */ +#define EXTERNAL_V6_PREFIX_CONFIG 0x4000 /* for map-t */ +#define PORT_SHARING_RATIO_CONFIG 0x8000 /* for map-t */ +#define CONSECUTIVE_PORTS_CONFIG 0x10000 /* for map-t */ + + u32 xlat_config_fields_enable; + + /* + * If numbers of the IPv6 and IPv4 SVI interfaces + */ + u32 ipv6_svi_if_num; + u32 ipv4_svi_if_num; + + /* + * TCP MSS values for the 2 XLAT directions + */ + u16 v4_to_v6_tcp_mss; + u16 v6_to_v4_tcp_mss; + + /* + * XLAT IPv6 prefix + */ + u32 v6_prefix[4]; + + /* + * XLAT IPv6 prefix mask + */ + u8 v6_prefix_mask_len; + + /* + * Set to non-zero if UBITs are reserved + */ +#define UBITS_ON 0x01 +#define IPV4_DF_BIT_CLEAR 0x02 +#define ICMPV6_MTU_SET 0x04 +#define IPV4_TOS_SET_ENABLED 0x08 +#define IPV6_TC_SET_ENABLED 0x10 + + u8 feature_enable_bits; + + u8 v4_prefix_mask_len; + +#define IPV6_NON_TRANSLATABLE_PREFIX_MAP_ALG_HASH 0x1 +#define IPV6_NON_TRANSLATABLE_PREFIX_MAP_ALG_TTL 0x2 +#define IPV6_NON_TRANSLATABLE_PREFIX_MAP_ALG_RANDOM 0x3 + u8 non_translatable_v6_prefix_v4_map_prefix_alg; + + u8 ipv6_tos_value; + + u8 ipv4_tos_value; + + u8 pad2; + + u8 pad3; + + u32 v4_prefix; + + /* + * MAP-T/MAP-E specific parameters + */ + u8 xlat_type; + + u32 cpe_domain_v6_prefix[4]; + u8 cpe_domain_v6_prefix_len; + + u32 cpe_domain_v4_prefix; + u8 cpe_domain_v4_prefix_len; + + u32 external_domain_v6_prefix[4]; + u8 external_domain_v6_prefix_len; + + u8 port_sharing_ratio_bits; + u8 consecutive_ports_bits; + +} spp_api_cnat_v4_single_xlat_config_req; + +/* + * Single Response for the xlat config request + */ +typedef struct _spp_api_cnat_v4_single_xlat_config_resp { + u8 v4_if_num_rc; + u8 v6_if_num_rc; + u8 v4_to_v6_tcp_mss_rc; + u8 v6_to_v4_tcp_mss_rc; + + u8 v6_prefix_rc; + u8 ubit_on_rc; + u8 v4_prefix_rc; + u8 xlat_id_rc; + + u8 non_translatable_v6_prefix_v4_map_alg_rc; + u8 ipv4_dfbit_clear_rc; + u8 icmpv6_ptb_mtu_set_rc; + u8 ipv4_tos_set_rc; + + u8 ipv6_tos_set_rc; + u8 pad1; + u8 pad2; + u8 pad3; +} spp_api_cnat_v4_single_xlat_config_resp; + +/* + * Bulk Response for the xlat config request + */ +typedef struct _spp_api_cnat_v4_bulk_xlat_config_resp { + u16 _spp_msg_id; + u16 pad; + + u32 bulk_rc; + + u32 num_xlat_entries; + + spp_api_cnat_v4_single_xlat_config_resp xlat_config_resp; + +} spp_api_cnat_v4_bulk_xlat_config_resp; + +typedef struct _spp_api_v6rd_v4_single_v6rd_config_resp { + u8 v6rd_id_rc; + u8 v4_if_num_rc; + u8 v6_if_num_rc; + u8 tunnel_source_rc; + u8 tunnel_mtu_rc; + u8 ipv4masklen_prefix_rc; + u8 ipv4masklen_suffix_rc; + u8 ttl_rc; + u8 tos_rc; + u8 anycast_rc; + u8 v6_prefix_rc; + u8 v6_br_unicast_rc; + u8 reassembly_rc; + u8 pad1; + u8 pad2; + u8 pad3; +} spp_api_v6rd_v4_single_v6rd_config_resp_t; + +typedef struct _spp_api_v6rd_v4_bulk_v6rd_config_resp { + u16 _spp_msg_id; + u16 pad; + u32 bulk_rc; + u32 num_v6rd_entries; + spp_api_v6rd_v4_single_v6rd_config_resp_t v6rd_config_resp[0]; +} spp_api_v6rd_v4_bulk_v6rd_config_resp_t; + +/* + * Single Request for MAPE config + */ +typedef struct _spp_api_mape_single_config_req { + + /* + * Indicates the mape instance id - How big will this value be + * Can we restrict it between 0..255, that way the APP code + * can use an array to store the xlat instances. + */ + u32 mape_id; + +#define MAPE_ENTRY_DELETE 0x0000 +#define MAPE_IPV4_SVI_IF_NUM_CONFIG 0x0001 +#define MAPE_IPV6_SVI_IF_NUM_CONFIG 0x0002 +#define MAPE_IPV4_TO_IPV6_TCP_MSS_CONFIG 0x0004 +#define MAPE_IPV6_TO_IPV4_TCP_MSS_CONFIG 0x0008 +#define MAPE_CPE_V4_PREFIX_CONFIG 0x0010 +#define MAPE_CPE_V6_PREFIX_CONFIG 0x0020 +#define MAPE_PORT_SHARING_RATIO_CONFIG 0x0040 +#define MAPE_CONSECUTIVE_PORTS_CONFIG 0x0080 +#define MAPE_PATH_MTU 0x0100 +#define MAPE_TUNNEL_ENDPOINT_V6_CONFIG 0x0200 + + u32 mape_config_fields_enable; + + /* + * If numbers of the IPv6 and IPv4 SVI interfaces + */ + u32 ipv6_svi_if_num; + u32 ipv4_svi_if_num; + + /* + * TCP MSS values for the 2 XLAT directions + */ + u16 v4_to_v6_tcp_mss; + u16 v6_to_v4_tcp_mss; + + /* + * Path v6 MTU. + */ + u32 path_mtu; + + /* + * CPE IPv6 prefix and mask len. + */ + u32 cpe_domain_v6_prefix[4]; + u8 cpe_domain_v6_prefix_len; + + /* + * CPE IPv4 prefix and mask len. + */ + u32 cpe_domain_v4_prefix; + u8 cpe_domain_v4_prefix_len; + + /* + * BR IPv6 tunnel end point V6 prefix and mask len. + */ + u32 aftr_tunnel_endpoint_address_v6[4]; + u8 aftr_tunnel_endpoint_address_v6_len; + + /* + * BR IPv6 tunnel end point V6 prefix and mask len. + */ + u8 port_sharing_ratio_bits; + u8 consecutive_ports_bits; + +} spp_api_mape_single_config_req; + + +/* + * Single Response for the mape config response + */ +typedef struct _spp_api_mape_single_config_resp { + u8 v4_if_num_rc; + u8 v6_if_num_rc; + u8 v4_to_v6_tcp_mss_rc; + u8 v6_to_v4_tcp_mss_rc; + u8 mape_id_rc; + u8 path_mtu_rc; + u8 cpe_v6_prefix_rc; + u8 cpe_v4_prefix_rc; + u8 tunnel_endpoint_prefix_rc; + u8 port_sharing_ratio_rc; + u8 port_contiguous_rc; + u8 pad1; +} spp_api_mape_single_config_resp; + +/* + * Bulk Response for the mape config request + */ +typedef struct _spp_api_mape_bulk_config_resp { + u16 _spp_msg_id; + u16 pad; + u32 bulk_rc; + u32 num_mape_entries; + spp_api_mape_single_config_resp mape_config_resp; +} spp_api_mape_bulk_config_resp; + + +#endif /* __CNAT_CONFIG_H__ */ diff --git a/plugins/vcgn-plugin/vcgn/cnat_config_api.h b/plugins/vcgn-plugin/vcgn/cnat_config_api.h new file mode 100644 index 00000000..0789d6a9 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_config_api.h @@ -0,0 +1,46 @@ +/* + * Copyright (c) 2015 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#ifndef __CNAT_CONFIG_API_H__ +#define __CNAT_CONFIG_API_H__ + +typedef struct _spp_api_cnat_v4_add_vrf_map { + u16 _spp_msg_id; + u8 rc; + u8 pad; + u32 i_vrf_id; + u32 o_vrf_id; + u16 i_vrf; + u16 o_vrf; + u32 start_addr[8]; + u32 end_addr[8]; +} spp_api_cnat_v4_add_vrf_map_t; + +typedef struct _spp_api_cnat_v4_config_nfv9_logging { + u16 _spp_msg_id; + u8 rc; + u8 enable; + u32 ipv4_address; + u32 i_vrf_id; + u16 i_vrf; + u16 port; + u16 refresh_rate; + u16 timeout_rate; + u16 path_mtu; + u8 nfv9_global_collector; + u8 session_logging; +} spp_api_cnat_v4_config_nfv9_logging_t; + + +#endif diff --git a/plugins/vcgn-plugin/vcgn/cnat_db.h b/plugins/vcgn-plugin/vcgn/cnat_db.h new file mode 100644 index 00000000..3596e238 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_db.h @@ -0,0 +1,701 @@ +/* + *------------------------------------------------------------------ + * cnat_db.h - translation database definitions + * + * Copyright (c) 2007-2013 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ + +#ifndef __CNAT_DB_H__ +#define __CNAT_DB_H__ + +#include "cnat_cli.h" +#include "cnat_ports.h" +#include "index_list.h" + +#define VRF_NAME_LEN_STORED 12 +#define MAX_VRFID 400 +typedef struct _cnat_svi_params_entry { + u16 svi_type; + u16 pad; + + u32 vrf_id; + u16 if_num; + + u32 ipv6_addr[4]; + u32 ipv4_addr; + + u8 direction; + u32 tbl_id; /* vrf */ + u32 vrf_override_id; /* tbl_id for override vrf */ + u8 vrf_override_flag; + u8 partition_id; +} cnat_svi_params_entry; + +typedef struct _cnat_ingress_vrfid_name_entry { + u32 vrf_id; + u16 ref_count; /*no# of serviceApps under a single vrf*/ + u8 vrf_name[VRF_NAME_LEN_STORED]; + u16 pad1; +} cnat_ingress_vrfid_name_entry; +#define HASH_ENHANCE 4 + +#define CNAT_DB_SIZE (PLATFORM_MAX_NAT_ENTRIES / PLATFORM_CNAT_INSTS) +#define CNAT_MAIN_HASH_SIZE (HASH_ENHANCE * PLATFORM_CNAT_MAIN_PRELIM_HASH_SIZE) +#define CNAT_MAIN_HASH_MASK (CNAT_MAIN_HASH_SIZE-1) + +#define CNAT_USER_DB_SIZE (PLATFORM_MAX_USER_ENTRIES / PLATFORM_CNAT_INSTS) +#define CNAT_USER_HASH_SIZE (HASH_ENHANCE * PLATFORM_CNAT_USER_PRELIM_HASH_SIZE) +#define CNAT_USER_HASH_MASK (CNAT_USER_HASH_SIZE-1) + +#define CNAT_SESSION_DB_SIZE (PLATFORM_MAX_NAT_ENTRIES / PLATFORM_CNAT_INSTS) +#define CNAT_SESSION_HASH_SIZE (HASH_ENHANCE * PLATFORM_CNAT_MAIN_PRELIM_HASH_SIZE) +#define CNAT_SESSION_HASH_MASK (CNAT_SESSION_HASH_SIZE-1) + + +#define CNAT_MAX_SESSIONS_PER_BIB 0xFFFF + +#define NUM_BITS_IN_UWORD (8*sizeof(uword)) + +/* No. of per ip/port config will be limited to 1024 */ +#define CNAT_TIMEOUT_HASH_SIZE 1024 +#define CNAT_TIMEOUT_HASH_MASK (CNAT_TIMEOUT_HASH_SIZE - 1) +#define CNAT_TIMEOUT_FULL_MASK 0xFFFFFFFFFFFFFFFF +#define CNAT_TIMEOUT_IPPROT_MASK PLATFORM_CNAT_TIMEOUT_IPPROT_MASK +#define CNAT_TIMEOUT_PORTPROT_MASK PLATFORM_CNAT_TIMEOUT_PORTPROT_MASK + +#define TRUE 1 +#define FALSE 0 + +/* + * The key structure. All fields are in NETWORK byte order! + */ +typedef struct { + u32 ipv4; + u16 port; + u16 vrf; //bit0-12:vrf, bit13:unused, bit14-15:protocol +} cnat_db_key_t; + +/* bit14-15:protocol in cnat_db_key_t */ +#define CNAT_INVALID_PROTO 0x0000 +#define CNAT_PPTP 0x0000 +#define CNAT_UDP 0x4000 +#define CNAT_TCP 0x8000 +#define CNAT_ICMP 0xc000 +#define CNAT_VRF_MASK 0x3fff +#define CNAT_PRO_MASK 0xc000 +#define CNAT_PRO_SHIFT 14 + +/* + * Maximum number of VRF entries supported + */ +#define CNAT_MAX_VRFMAP_ENTRIES (CNAT_VRF_MASK + 1) +/* + * for hashing purposes, fetch the key in one instr. + */ +typedef union { + cnat_db_key_t k; + u64 key64; +} cnat_key_t; + +typedef struct { + cnat_key_t k; + u32 bucket; +} cnat_db_key_bucket_t; + +typedef struct { + u32 ipv6[4]; + cnat_key_t ipv4_key; +} dslite_key_t; + +typedef struct { +/* + cnat_db_key_bucket_t ck; + u32 ipv6[4]; +*/ + dslite_key_t dk; + u32 bucket; +} dslite_db_key_bucket_t; + + +/* Per port/ip timeout related strucutres */ +extern index_slist_t *cnat_timeout_hash; + +typedef struct { + cnat_key_t timeout_key; + u16 timeout_value; +} cnat_timeout_t; + +typedef struct { + cnat_timeout_t t_key; + index_slist_t t_hash; +} cnat_timeout_db_entry_t; + +extern cnat_timeout_db_entry_t *cnat_timeout_db; + +/* + * Main translation database entries. Currently 0x5A = 90 bytes in length. + * Given 20,000,000 entries, it saves nearly 1gb of SDRAM to pack the entries + * and pay the extra prefetch. So, that's what we do. + */ + +typedef struct { + /* 0x00 */ + index_slist_t out2in_hash; /* hash-and-chain, x2 */ + index_slist_t in2out_hash; + + /* 0x08 */ + u16 flags; /* Always need flags... */ +#define CNAT_DB_FLAG_PORT_PAIR (1<<0) +#define CNAT_DB_FLAG_TCP_ACTIVE (1<<1) +#define CNAT_DB_FLAG_ENTRY_FREE (1<<2) +#define CNAT_DB_FLAG_UDP_ACTIVE (1<<3) +#define CNAT_DB_FLAG_STATIC_PORT (1<<4) +/* This alg entry is set for FTP data connection */ +#define CNAT_DB_FLAG_ALG_ENTRY (1<<5) + +/* Will be set for TCP connection with destination port - 1723 + * note - here CNAT_DB_FLAG_TCP_ACTIVE is also set */ +#define CNAT_DB_FLAG_PPTP_TUNNEL_INIT (1<<6) +#define CNAT_DB_FLAG_PPTP_TUNNEL_ACTIVE (1<<7) + +/* for PPTP GRE packtes */ +#define CNAT_DB_FLAG_PPTP_GRE_ENTRY (1<<8) + +/* for PCP support */ +#define CNAT_DB_FLAG_PCPI (1<<9) +#define CNAT_DB_FLAG_PCPE (1<<10) +#define CNAT_PCP_FLAG (CNAT_DB_FLAG_PCPI | CNAT_DB_FLAG_PCPE) + +#define CNAT_TAC_SEQ_MISMATCH (1<<11) +/* This alg entry is set for ftp control connection */ +#define CNAT_DB_FLAG_ALG_CTRL_FLOW (1<<12) + +/* This is for marking the state where connection is closing */ +#define CNAT_DB_FLAG_TCP_CLOSING (1<<13) + +#define CNAT_DB_DSLITE_FLAG (1<<14) +#define CNAT_DB_NAT64_FLAG (1<<15) + + /* 0x0A */ + u16 vrfmap_index; /* index of vrfmap */ + + /* 0x0C */ + u32 user_index; /* index of user that owns this entry */ + + /* 0x10 */ + cnat_key_t out2in_key; /* network-to-user, outside-to-inside key */ + + /* 0x18 */ + cnat_key_t in2out_key; /* user-to-network, inside-to-outside key */ + + /* 0x20 */ + index_dlist_t user_ports; /* per-user translation list */ + + /* 0x28 */ + u32 out2in_pkts; /* pkt counters */ + + /* 0x2C */ + u32 in2out_pkts; + + /* 0x30 */ + u32 entry_expires; /* timestamp used to expire translations */ + + /* 0x34 */ + union { /* used by FTP ALG, pkt len delta due to FTP PORT cmd */ + u16 delta; + i8 alg_dlt[2]; /* two delta values, 0 for previous, 1 for current */ + u16 il; /* Used to indicate if interleaved mode is used + in case of RTSP ALG */ + } alg; + + /* 0x36 */ + u16 timeout; + + /* 0x38 */ + union { + struct seq_pcp_t { + u32 tcp_seq_num; /* last tcp (FTP) seq # that has pkt len change due to PORT */ + u32 pcp_lifetime; /* peer and map life time value sent in reply*/ + } seq_pcp; + + /* This is for TCP seq check */ + struct tcp_seq_chk_t { + u32 seq_no; + u32 ack_no; + } tcp_seq_chk; + + /* used for pptp alg entries + 1. only tunnel : prev and next = 0xFFFFFFFF + 2. first gre entry : prev = tunnel db, next = next gre db + 3. last gre entry : prev = previous gre/tunnel db, next= 0xFFFFFFFF; + + *while adding gre entry- updated at the begining of head + *while deleting gre entry - hash look up will be done and prev and next are adjusted + * while deleting need not traverse throufgh the list, as done in index_dlist_remelem + + */ + index_dlist_t pptp_list; + + } proto_data; + + /* 0x40 */ + u32 dst_ipv4; /* pointer to ipv4 dst list, used in evil mode */ + + /* 0x44 */ + u16 dst_port; + + /* 0x46 */ + u16 dslite_nat44_inst_id; + + /* 0x48 */ + u32 session_head_index; + + /* 0x4C */ + u16 nsessions; + + /* 0x4E */ + u8 unused; + + /* 0x4F */ + u8 scale; + + /* 0x50 */ + u32 diff_window; + + /* Sizeof cnat_main_db_entry_t = 0x54 */ +} cnat_main_db_entry_t; + +/* Caution ... + * 1. The size of this structure should be same as that of + * nat64_bib_user_entry_t + * 2. Do not alter the position of first four fields + */ +typedef struct { + /* 0x00 */ + index_slist_t user_hash; /* hash 'n chain bucket chain */ + + /* 0x04 */ + u16 ntranslations; /* translations hold by this user */ + + /* 0x06 */ + u8 icmp_msg_count; /* use to rate limit imcp send to this user */ + + /* 0x07 */ + u8 flags; /* To identfiy whether it is NAT64 or NAT44 etc */ +#define CNAT_USER_DB_NAT44_FLAG 0 +#define CNAT_USER_DB_NAT64_FLAG 1 +#define CNAT_USER_DB_DSLITE_FLAG 2 +#define CNAT_USER_DB_PORT_LIMIT_EXCEEDED 0X80 + + /* 0x08 */ + u32 translation_list_head_index; + + /* 0x0C */ + u32 portmap_index; /* index of bound port-map */ + + /* 0x10 */ + cnat_key_t key; /* For dslite this should store IPv6 address */ + u32 ipv6[4]; // B4 ipv6 address + /* 0x18 */ +#if 0 + u32 temp1; + u32 temp2; + u32 temp3; +#endif + /* 0x28 same as nat64_user_db */ +#ifndef NO_BULK_LOGGING + /* Now adding 8 more bytes for bulk allocation.. This makes it + * 0x30 (48). Added the same to nat64_bib_user_entry_t make the + * the sizes equal. For nat64 stful, we may support bulk allocation + * later. + */ + /* Indicates the currently used bulk port range */ + i16 bulk_port_range_cache[BULK_RANGE_CACHE_SIZE]; +#endif /* #ifndef NO_BULK_LOGGING */ +} cnat_user_db_entry_t; + +/* + * cnat_session_entry_t + * This structure represents the cnat session table. It maintains the + * information about the destination of a given translation (main db) + * There would be entry here only if packets are send to more than 1 destn + * from the same source. + */ +typedef struct { + + /* 0x00 */ + index_slist_t cnat_session_hash; + + /* 0x04 */ + u32 main_db_index; /* would point to v4 src transport address */ + + /* 0x08 */ + cnat_key_t v4_dest_key; + + /* 0x10 */ + u16 flags; /* Same as cnat_main_db_t */ + + /* 0x12 */ + u16 timeout; + + /* 0x14 */ + u32 entry_expires; + /* 0x18 */ + index_dlist_t main_list; + /* 0x20 = 32 B */ + + union { /* alg same as cnat_main_db_t */ + u16 delta; + i8 alg_dlt[2]; + u16 il; + } alg; + + /* 0x22 */ + u16 tcp_flags; + + /* 0x24 */ + u32 tcp_seq_num; + + /* 0x28 */ + u32 ack_no; + + /* 0x2C */ + u32 window; + + /* 0x30 */ + u8 scale; + + /* 0x31 */ + u8 pad; + + /* 0x32 */ +} cnat_session_entry_t; + + + +/* + * out2in and in2out hash bucket arrays are simply arrays of index_slist_t's + */ + +typedef enum { + CNAT_DB_CREATE_DEFAULT=0, /* honor cnat_main_db_max_ports_per_user */ + CNAT_DB_CREATE_OVERRIDE, /* just do it. */ +} cnat_db_create_policy_t; + +typedef struct { + cnat_key_t in2out_key; + cnat_key_t out2in_key; + u32 dst_ipv4; /* evil for mode only */ + u16 cnat_instance; + cnat_portmap_t *portmap; + u16 *portmap_inuse; + cnat_main_db_entry_t *db; + cnat_db_create_policy_t policy; + port_pair_t pair_of_ports; +} cnat_db_create_args_t; + +extern cnat_main_db_entry_t *cnat_main_db; +extern cnat_user_db_entry_t *cnat_user_db; +extern cnat_session_entry_t *cnat_session_db; + +#define S_WAO 0 +#define S_WA 1 /* waiting for address pool */ +#define S_WO 2 /* waiting for outside vrf */ +#define S_RUN 3 /* got everything */ +#define S_DEL 4 /* just delete */ + +#define INVALID_UIDX 0xffff /*invalid svi app uidb index */ +#define INVALID_VRFID 0xffffffff /*invalid vrf id */ + +typedef struct { + u16 status; + u16 tcp_mss; //tcp max segment size for this inside vrf */ + u32 delete_time; + u16 i_vrf; //inside SVI uidx + u16 o_vrf; //outside SVI uidx + u32 i_vrf_id; //inside vrf id + u32 o_vrf_id; //outside vrf id + cnat_portmap_v2_t *portmap_list; + u32 nfv9_logging_index; + u32 syslog_logging_index; + u16 ip_n_to_1; +#ifndef NO_BULK_LOGGING + bulk_alloc_size_t bulk_size; +#endif /* #ifndef NO_BULK_LOGGING */ + u32 pcp_server_addr; + u32 pcp_server_port; + + u8 nf_logging_policy; + u8 syslog_logging_policy; + u8 frag_tout; + u32 rseed_ip; + u16 port_limit; + u8 tcp_seq_check_enable; + u8 pad; + u32 tcp_seq_user_window; + u8 filter_policy; + u8 ignore_port; +} cnat_vrfmap_t; + +/* + * When creating cnat_vrfmap entry, ensure that any already + * configured logging info is taken into account + */ +#define CNAT_SET_VRFMAP_NFV9_LOGGING_INDEX(logging_index, i_vrf) \ +do { \ + cnat_nfv9_logging_info_t *my_nfv9_logging_info = 0; \ + pool_foreach (my_nfv9_logging_info, cnat_nfv9_logging_info, ({ \ + if (my_nfv9_logging_info->i_vrf == i_vrf) { \ + logging_index = my_nfv9_logging_info - cnat_nfv9_logging_info; \ + break; \ + } \ + })); \ +while (0) + + +typedef struct { + /* + * spp_ctx_alloc() call failed + */ + u64 nfv9_logging_context_creation_fail_count; + + /* + * Cannot send the existing logging pkt, so cannot create + * any additional packets for logging purposes + */ + u64 nfv9_logging_context_creation_deferred_count; + + /* + * Cannot send the existing logging pkt due to cnat_rewrite_output + * superframe being full. + */ + u64 nfv9_downstream_constipation_count; + + /* + * buffer for spp_ctx_alloc() call failed + */ + u64 nfv9_logging_context_buffer_allocation_fail_count; + +} cnat_global_counters_t; + + +extern cnat_global_counters_t cnat_global_counters; + +extern u16 *cnat_portmap_indices_by_vrf; +extern cnat_vrfmap_t *cnat_portmap_by_vrf; +extern cnat_portmap_t **cnat_portmaps; +extern u16 **cnat_portmaps_inuse; + +extern cnat_vrfmap_t *cnat_map_by_vrf; + +/* + * Special define to indicate that the VRF map index entry is empty + */ +#define VRF_MAP_ENTRY_EMPTY 0xffff +extern u16 vrf_map_array[CNAT_MAX_VRFMAP_ENTRIES]; + +extern cnat_svi_params_entry svi_params_array[CNAT_MAX_VRFMAP_ENTRIES]; +extern cnat_ingress_vrfid_name_entry vrfid_name_map[MAX_VRFID]; + +extern index_slist_t *cnat_out2in_hash; +extern index_slist_t *cnat_in2out_hash; +extern index_slist_t *cnat_user_hash; +extern index_slist_t *cnat_session_hash; + +typedef enum { + CNAT_DB_IN2OUT = 0, + CNAT_DB_OUT2IN, +} cnat_db_which_t; + +typedef enum { + CNAT_NO_ICMP_MSG =0, + CNAT_ICMP_MSG, +} cnat_icmp_msg_t; + +typedef struct { + cnat_errno_t error; + cnat_icmp_msg_t gen_icmp_msg; + u32 svi_addr; +} cnat_gen_icmp_info; + +typedef cnat_vrfmap_t nat64_vrfmap_t; +typedef cnat_portmap_v2_t nat64_portmap_v2_t; + +#define CNAT_V4_GET_HASH(key64, hash, mask) \ + a = key64; \ + b = c = 0x9e3779b97f4a7c13LL; \ + /* Jenkins hash, arbitrarily use c as the "answer" */ \ + hash_mix64(a, b, c); \ + hash = c & mask; + +#define CNAT_V4_GET_SESSION_HASH(main_index, in_addr, port, vrf, hash, mask) \ + a = main_index ^ in_addr ^ port ^ vrf; \ + b = c = 0x9e3779b9; \ + /* Jenkins hash, arbitrarily use c as the "answer" */ \ + hash_mix32(a, b, c); \ + hash = c & mask; + +#define CNAT_V4_GET_FRAG_HASH(key64, key32, hash, mask) \ + a = key64; \ + b = key32; \ + c = 0x9e3779b97f4a7c13LL; \ + hash_mix64(a, b, c); \ + hash = c % mask; + +#define CNAT_DB_UPDATE_IN2OUT_TIMER \ + db->entry_expires = cnat_current_time; \ + db->in2out_pkts++; + +#define CNAT_DB_TIMEOUT_RST(db) \ + if(PREDICT_TRUE(db->entry_expires != 0 )) \ + db->entry_expires = cnat_current_time; + +#define DEBUG_I2O_DROP(debug_flag) \ +if (debug_i_flag & debug_flag) { \ + cnat_db_debug_i2o_drop(&ki); \ +} + + +cnat_main_db_entry_t *cnat_main_db_create (cnat_db_create_args_t *a); +void cnat_main_db_entry_delete(cnat_main_db_entry_t *ep); + +void cnat_delete_main_db_entry(cnat_main_db_entry_t *ep); +void cnat_delete_main_db_entry_v2(cnat_main_db_entry_t *ep); + + +cnat_main_db_entry_t* +cnat_get_main_db_entry(cnat_db_key_bucket_t *ki, + port_pair_t port_type, + cnat_errno_t *error, + cnat_user_db_entry_t ** user_db_entry); + +cnat_main_db_entry_t* +cnat_get_main_db_entry_v2(cnat_db_key_bucket_t *ki, + port_pair_t port_pair_type, + port_type_t port_type, + cnat_gen_icmp_info *info, + cnat_key_t *dest_info); + +cnat_main_db_entry_t* +cnat_create_static_main_db_entry_v2(cnat_db_key_bucket_t *ki, + cnat_db_key_bucket_t *ko, + cnat_vrfmap_t *my_vrfmap, + cnat_gen_icmp_info *info); + +cnat_main_db_entry_t* +cnat_create_main_db_entry_and_hash(cnat_db_key_bucket_t *ki, + cnat_db_key_bucket_t *ko, + cnat_user_db_entry_t *udb); + +cnat_user_db_entry_t* +cnat_user_db_create_entry(cnat_db_key_bucket_t *uki, + u32 portmap_index); + +cnat_user_db_entry_t* +cnat_user_db_lookup_entry(cnat_db_key_bucket_t *uki); + +cnat_main_db_entry_t* +cnat_main_db_lookup_entry(cnat_db_key_bucket_t *ki); + +cnat_main_db_entry_t* +cnat_main_db_lookup_entry_out2in (cnat_db_key_bucket_t *ko); + +void cnat_main_db_entry_dump (cnat_main_db_entry_t *db); +void cnat_db_in2out_hash_delete (cnat_main_db_entry_t *ep, cnat_user_db_entry_t *up); +void cnat_db_out2in_hash_delete (cnat_main_db_entry_t *ep); +void cnat_user_db_delete (cnat_user_db_entry_t *up); +void cnat_db_debug_i2o_drop(cnat_db_key_bucket_t *ki); + +/* + * Function to dump the Hash Table that maps if_num to uidb_index + */ +extern void cnat_if_num_hash_table_dump(void); + +#define MAIN_DB_TYPE 0 +#define SESSION_DB_TYPE 1 +u16 query_and_update_db_timeout(void *db, u8 db_type); + +u16 cnat_timeout_db_create (cnat_timeout_t t_entry); +void cnat_timeout_db_delete(cnat_key_t t_key); + +cnat_session_entry_t * +cnat_create_session_db_entry(cnat_key_t *ko, + cnat_main_db_entry_t *bdb, u8 log); + +void cnat_dest_update_main2session(cnat_main_db_entry_t *mdb, + cnat_session_entry_t *sdb); + +cnat_session_entry_t *cnat_handle_1to2_session( + cnat_main_db_entry_t *mdb, + cnat_key_t *dest_info); + +void cnat_add_dest_n_log( + cnat_main_db_entry_t *mdb, + cnat_key_t *dest_info); + +cnat_session_entry_t * + cnat_session_db_lookup_entry(cnat_key_t *ko,u32 main_db_index); + +cnat_session_entry_t * + cnat_session_db_edm_lookup_entry(cnat_key_t *ko, + u32 session_head_index, + u32 main_db_index); + + +typedef struct{ + u32 sessions; + u32 active_translations; + u32 num_dynamic_translations; + u32 num_static_translations; + u64 in2out_drops_port_limit_exceeded; + u64 in2out_drops_system_limit_reached; + u64 in2out_drops_resource_depletion; + u64 no_translation_entry_drops; + u32 num_subscribers; + u32 dummy; + u64 drops_sessiondb_limit_exceeded; +} nat44_dslite_common_stats_t; + +typedef struct { + u32 translation_delete_count; + u32 translation_create_count; + u32 out2in_forwarding_count; +} nat44_dslite_global_stats_t; + +typedef struct { + u64 v4_to_v6_tcp_seq_mismatch_drop_count; + u64 v4_to_v6_tcp_seq_mismatch_count; + u64 v4_to_v6_out2in_session_create_count; + u64 v4_to_v6_end_point_filter_drop_count; +} nat44_counters_stats_t; + +#define NAT44_STATS 0 +#define DSLITE_STATS 1 +extern nat44_dslite_common_stats_t nat44_dslite_common_stats[255]; /* 0 is for nat44 */ +extern nat44_dslite_global_stats_t nat44_dslite_global_stats[2]; /* 0 for nat44 and 1 for dslite */ +extern nat44_counters_stats_t nat44_counters_stats[CNAT_MAX_VRFMAP_ENTRIES];/*For displaying show cgn <cgn-name> inside-vrf <vrf-name> counters */ + +#define NAT44_COMMON_STATS nat44_dslite_common_stats[NAT44_RESERVED_INST_ID] +#define NAT44_GLOBAL_STATS nat44_dslite_global_stats[NAT44_STATS] +#define DSLITE_GLOBAL_STATS nat44_dslite_global_stats[DSLITE_STATS] +#define SESSION_LOG_ENABLE 1 +#define ALG_ENABLED_DB(db) \ + ((db->flags & CNAT_PCP_FLAG) || \ + (db->flags & CNAT_DB_FLAG_ALG_CTRL_FLOW) || \ + (db->flags & (CNAT_DB_FLAG_PPTP_TUNNEL_INIT | \ + CNAT_DB_FLAG_PPTP_TUNNEL_ACTIVE))) + + +#endif /* __CNAT_DB_H__ */ diff --git a/plugins/vcgn-plugin/vcgn/cnat_db_scanner.c b/plugins/vcgn-plugin/vcgn/cnat_db_scanner.c new file mode 100644 index 00000000..6e536d84 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_db_scanner.c @@ -0,0 +1,493 @@ +/* + *--------------------------------------------------------------------------- + * cnat_db_scanner.c - cnat_db_scanner dispatch function and initialization + * + * Copyright (c) 2009-2014 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *--------------------------------------------------------------------------- + */ + +#include <vlib/vlib.h> +#include <vnet/vnet.h> +#include <vppinfra/error.h> +#include <vnet/buffer.h> +#include <vppinfra/string.h> +#include <vppinfra/random.h> +#include <vppinfra/fifo.h> +#include <vppinfra/hash.h> +#include <vppinfra/format.h> + + +#include "cnat_db.h" +#include "cnat_logging.h" +#include "cnat_global.h" +#include "cnat_ipv4_udp.h" +#include "cnat_common_api.h" + +u32 translation_create_count, translation_delete_count; +u32 translation_create_rate, translation_delete_rate; + +u32 in2out_forwarding_count, out2in_forwarding_count; +u32 in2out_forwarding_rate, out2in_forwarding_rate; + +u32 nat44_active_translations; +u32 num_entries; +uword check_these_pool_indices[2*MAX_DB_ENTRY_SELECTED_PER_SCAN]; + +#define CNAT_DB_SCANNER_TURN_ON 5 /* just an arbitary number for easier debugging */ + +//extern u32 pcp_throttle_count; + +typedef struct { + u32 cached_next_index; + /* $$$$ add data here */ + + /* convenience variables */ + vlib_main_t * vlib_main; + vnet_main_t * vnet_main; +} cnat_db_scanner_main_t; + +cnat_db_scanner_main_t cnat_db_scanner_main; + + +static inline void check_session_for_expiry( + cnat_session_entry_t * sdb, u8 timeout_dirty + /*,dslite_table_entry_t *dslite_entry_ptr*/) +{ + void cnat_delete_session_db_entry (cnat_session_entry_t *ep, u8 log); + /* Tasks - + * 1. Check for expiry for this entry + * 2. Delete if expired + */ + u32 timeout = 0; + + switch(sdb->v4_dest_key.k.vrf & CNAT_PRO_MASK) { + case CNAT_TCP: + if (sdb->flags & CNAT_DB_FLAG_TCP_ACTIVE) { + timeout = sdb->timeout; + if(PREDICT_FALSE(timeout_dirty)) { + timeout = query_and_update_db_timeout( + (void *)sdb, SESSION_DB_TYPE); + } + if(PREDICT_TRUE(timeout == 0)) { + timeout = tcp_active_timeout; + //dslite_entry_ptr->timeout_info.tcp_active_timeout; + } + } else { + timeout = tcp_initial_setup_timeout; + //dslite_entry_ptr->timeout_info.tcp_initial_setup_timeout; + } + break; + case CNAT_UDP: + if (sdb->flags & CNAT_DB_FLAG_UDP_ACTIVE) { + timeout = sdb->timeout; + if(PREDICT_FALSE(timeout_dirty)) { + timeout = query_and_update_db_timeout( + (void *)sdb, SESSION_DB_TYPE); + } + + if(PREDICT_TRUE(timeout == 0)) { + timeout = udp_act_session_timeout; + //dslite_entry_ptr->timeout_info.udp_act_session_timeout; + } + } else { + timeout = udp_init_session_timeout; + //dslite_entry_ptr->timeout_info.udp_init_session_timeout; + } + break; + case CNAT_ICMP: + timeout = icmp_session_timeout; + //dslite_entry_ptr->timeout_info.icmp_session_timeout; + break; + case CNAT_PPTP: + timeout = pptp_cfg.timeout; + break; + default: + return; + } + /* Changes required for clearing sessions */ + if (PREDICT_FALSE((sdb->entry_expires == 0) || + (sdb->entry_expires + timeout < cnat_current_time))) { + cnat_delete_session_db_entry(sdb, TRUE); + } +} + +static u8 handle_db_scan_for_sessions( + cnat_main_db_entry_t *db, int *dirty_index, uword db_index + /* ,dslite_table_entry_t *dslite_entry_ptr */) +{ + /* Tasks - + * 1. Traverse through the sessions and check for timeouts + * 2. Delete sessions that have exipred + * 3. Check if the db has only one session remaining.. if so, + * the details of the session has to be moved to main db + * and session db entry needs to be freed + * 4. If db does not have any sessions left, the db itself + * needs to be deleted. + */ + u32 nsessions, session_index_head, session_index; + cnat_session_entry_t *sdb; + u8 timeout_dirty = FALSE; + + if(PREDICT_FALSE(*dirty_index == db_index)) { + *dirty_index = -1; + } + if(PREDICT_FALSE(timeout_dirty_flag == 1)) { + timeout_dirty_flag = 0; + *dirty_index = db_index; + timeout_dirty = TRUE; + } + + session_index_head = session_index = db->session_head_index; + nsessions = db->nsessions; + + do { + sdb = cnat_session_db + session_index; + if(PREDICT_FALSE(!sdb)) { + //TO DO: Debug msg? + return FALSE; + } + session_index = sdb->main_list.next; + check_session_for_expiry(sdb, timeout_dirty /*,dslite_entry_ptr*/); + nsessions--; /* To ensure that we do not get in to an infinite loop */ + } while(session_index != session_index_head + && db->session_head_index != EMPTY && + nsessions); + + /* Note.. the code below assumes that while deleting the + * sessions, we do not delete the main db entry if it does + * not have any sessions anymore + */ + if(PREDICT_FALSE((!db->nsessions) && + (!(db->flags & CNAT_DB_FLAG_STATIC_PORT)))) { + cnat_delete_main_db_entry_v2(db); + return TRUE; /* to indicate that main db was deleted */ + } + return FALSE; +} + +static void cnat_db_scanner(void) +{ + cnat_main_db_entry_t * db; + u32 timeout; + cnat_vrfmap_t *my_vrfmap __attribute__((unused)) = 0; + static int dirty_index = -1; + u16 instance __attribute__((unused)); + //dslite_table_entry_t *dslite_entry_ptr; + u32 i; + uword db_index; + //pcp_throttle_count = 0; + + for (i = 0; i < num_entries; i++) { + db_index = check_these_pool_indices[i]; + db = cnat_main_db + db_index; + timeout=0; + my_vrfmap = 0; + +#if 0 + if(PREDICT_FALSE(db->flags & CNAT_PCP_FLAG)) { + + if(db->proto_data.seq_pcp.pcp_lifetime < cnat_current_time) { + /* mark as implicit */ + db->flags &= ~CNAT_PCP_FLAG; + } + continue; + } + +#endif + if(PREDICT_FALSE(db->nsessions > 1)) { + if(PREDICT_FALSE( + handle_db_scan_for_sessions(db, &dirty_index, db_index /*,dslite_entry_ptr */))) { + continue; + } else if(PREDICT_TRUE(db->nsessions > 1)) { + continue; + } + /* if there is exactly one dest left.. let it fall through + * and check if that needs to be deleted as well + */ + } + +#if 0 + if (PREDICT_FALSE(db->flags & CNAT_DB_FLAG_STATIC_PORT)) { + if (PREDICT_FALSE(db->flags & CNAT_DB_DSLITE_FLAG)) { + if(PREDICT_FALSE( + ((dslite_entry_ptr->nf_logging_policy != SESSION_LOG_ENABLE) && + (dslite_entry_ptr->syslog_logging_policy != SESSION_LOG_ENABLE)) + || (db->nsessions !=1))) { + continue; + } + } else { + my_vrfmap = cnat_map_by_vrf + db->vrfmap_index; + if(PREDICT_FALSE( + ((my_vrfmap->nf_logging_policy != SESSION_LOG_ENABLE) && + (my_vrfmap->syslog_logging_policy != SESSION_LOG_ENABLE)) || + (db->nsessions !=1))) { + continue; + } + } + } +#endif + + switch(db->in2out_key.k.vrf & CNAT_PRO_MASK) { + case CNAT_TCP: + if (db->flags & CNAT_DB_FLAG_TCP_ACTIVE) { + timeout = db->timeout; + if(PREDICT_FALSE(dirty_index == db_index)) { + dirty_index = -1; + } + if(PREDICT_FALSE(timeout_dirty_flag == 1)) { + timeout_dirty_flag = 0; + dirty_index = db_index; + } + if(PREDICT_FALSE(dirty_index != -1)) { + timeout = query_and_update_db_timeout( + (void *)db, MAIN_DB_TYPE); + } + if(PREDICT_TRUE(timeout == 0)) { + timeout = tcp_active_timeout; + } + } else { + timeout = tcp_initial_setup_timeout; + } + break; + case CNAT_UDP: + if (db->flags & CNAT_DB_FLAG_UDP_ACTIVE) { + timeout = db->timeout; + if(PREDICT_FALSE(dirty_index == db_index)) { + dirty_index = -1; + } + if(PREDICT_FALSE(timeout_dirty_flag == 1)) { + timeout_dirty_flag = 0; + dirty_index = db_index; + } + if(PREDICT_FALSE(dirty_index != -1)) { + timeout = query_and_update_db_timeout( + (void *)db, MAIN_DB_TYPE); + } + if(PREDICT_TRUE(timeout == 0)) { + timeout = udp_act_session_timeout; + } + } else { + timeout = udp_init_session_timeout; + } + break; + case CNAT_ICMP: + timeout = icmp_session_timeout; + break; + case CNAT_PPTP: + timeout = pptp_cfg.timeout; + break; + default: + continue; + } + + + /* Ref: CSCtu97536 */ + if (PREDICT_FALSE((db->entry_expires == 0) || + (db->entry_expires + timeout < cnat_current_time))) { +#if 0 + if (PREDICT_FALSE(db->flags & CNAT_DB_FLAG_STATIC_PORT)) { + if (PREDICT_FALSE(db->flags & CNAT_DB_DSLITE_FLAG)) { + instance = db->dslite_nat44_inst_id; + } else { + instance = NAT44_RESERVED_INST_ID; + cnat_session_log_nat44_mapping_delete(db, 0, my_vrfmap); + } + + /* Reset the session details */ + db->nsessions = 0; + db->dst_ipv4 = 0; + db->dst_port = 0; + db->flags &= ~(CNAT_DB_FLAG_TCP_ACTIVE | CNAT_DB_FLAG_UDP_ACTIVE + | CNAT_DB_FLAG_ALG_ENTRY); + db->timeout = 0; + db->entry_expires = 0; + db->alg.delta = 0; + db->proto_data.seq_pcp.tcp_seq_num = 0; + continue; + } +#endif + //printf("DELETING DB ENTRY FOR 0x%x\n", db->in2out_key.k.ipv4); + cnat_delete_main_db_entry_v2(db); + } + //free(check_these_pool_indices[i]); + } +} + +static void walk_the_db (void) +{ + pool_header_t *h = pool_header(cnat_main_db); + u32 db_uword_len; + static u32 base_index = 0, free_bitmap_index = 0; + int bits_scanned = 0, i; + uword inuse_bitmap; + + num_entries=0; + + /* Across all db entries... */ + db_uword_len = vec_len(cnat_main_db) / NUM_BITS_IN_UWORD; + if (PREDICT_FALSE(vec_len(cnat_main_db) % NUM_BITS_IN_UWORD)) { + /* + * It should not come here as in cnat_db_init_v2() + * it is made multiple of NUM_BITS_IN_UWORD + */ + ASSERT(0); + return ; + } + + if (PREDICT_FALSE(! db_uword_len)) + return ; + + while (bits_scanned < MAX_DB_ENTRY_PER_SCAN) { + + if (PREDICT_FALSE(free_bitmap_index < vec_len(h->free_bitmap))) { + + /* free_bitmap exists and it is not all 0 */ + + inuse_bitmap = ~(h->free_bitmap[free_bitmap_index]); + i = 0; + while (inuse_bitmap) { + + /* Check to see if the index is in use */ + if (PREDICT_FALSE((inuse_bitmap >> i) & 1)) { + check_these_pool_indices[num_entries] = base_index + i; + inuse_bitmap &= ~((uword) 1 << i); + num_entries++; + } + i++; + } // while (inuse_bitmap) + } else { + + /* + * 64-bit entry is 0, means all 64 entries are allocated. + * So, simply add all 64 entries here. + * No need to form inuse_bitmap, check and reset bits + */ + for (i=0; i<NUM_BITS_IN_UWORD; i++) { + + check_these_pool_indices[num_entries] = base_index + i; + num_entries++; + } + } // if (free_bitmap_index < vec_len(h->free_bitmap)) + + /* Update free_bitmap_index and base_index for next run */ + if (PREDICT_FALSE(free_bitmap_index == db_uword_len - 1)) { + /* wrap-around for next run */ + free_bitmap_index = 0; + base_index = 0; + } else { + free_bitmap_index ++; + base_index += NUM_BITS_IN_UWORD; + } + + /* increment # of bits scanned */ + bits_scanned += NUM_BITS_IN_UWORD; + + /* Found enough entries to check ? */ + if (PREDICT_FALSE(num_entries >= MAX_DB_ENTRY_SELECTED_PER_SCAN)) + { + /* This check is introduced to keep fixed MAX scan entry value */ + /* This is very much required when we do scanning for NAT64 */ + /* please check comments in cnat_db_scanner() & + * handler_nat64_db_scanner() */ + if (num_entries >= MAX_COMBINED_DB_ENTRIES_PER_SCAN) { + num_entries = MAX_COMBINED_DB_ENTRIES_PER_SCAN; + } + break; + } + + } // while (bits_scanned < MAX_DB_ENTRY_PER_SCAN) + + if (PREDICT_FALSE(num_entries > 0)) { + //printf("%s: num_entries [%d]\n", __func__, num_entries); + cnat_db_scanner(); + } + return ; +} + +static uword cnat_db_scanner_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + f64 timeout = 0.01; /* timeout value in sec (10 ms) */ + static u8 timeout_count = 0; + + uword event_type; + uword * event_data = 0; + /* Wait until vCGN is configured */ + while (1) { + /* Assigning a huge timeout value, vCGN may or + * may not get configured within this timeout */ + vlib_process_wait_for_event_or_clock (vm, 1e9); + event_type = vlib_process_get_events (vm, &event_data); + + /* check whether the process is waken up by correct guy, + * otherwise continue waiting for the vCGN config */ + if (event_type == CNAT_DB_SCANNER_TURN_ON) { + break; + } + } + + while(1) { + vlib_process_suspend(vm, timeout); + + /* Above suspend API should serve the purpose, no need to invoke wait API */ + /* vlib_process_wait_for_event_or_clock (vm, timeout); */ + + /* Lets make use of this timeout for netflow packet sent */ + if (timeout_count < 100) { /* 100*10 ms = 1 sec */ + timeout_count++; + } else { + if (nfv9_configured) { + handle_pending_nfv9_pkts(); + } + timeout_count = 0; + } + /* Do we need this ? */ + //event_type = vlib_process_get_events (vm, &event_data); + cnat_current_time = (u32)vlib_time_now (vm); + if (cnat_db_init_done) { + walk_the_db(); + } + } + + return 0; +} + + +VLIB_REGISTER_NODE (cnat_db_scanner_node) = { + .function = cnat_db_scanner_fn, + .type = VLIB_NODE_TYPE_PROCESS, + .name = "cnat-db-scanner", + .process_log2_n_stack_bytes = 18, +}; + +clib_error_t *cnat_db_scanner_init (vlib_main_t *vm) +{ + cnat_db_scanner_main_t *mp = &cnat_db_scanner_main; + + mp->vlib_main = vm; + mp->vnet_main = vnet_get_main(); + + return 0; +} + +void cnat_scanner_db_process_turn_on(vlib_main_t *vm) +{ + vlib_process_signal_event (vm, cnat_db_scanner_node.index, + CNAT_DB_SCANNER_TURN_ON, 0); + return; +} + +VLIB_INIT_FUNCTION (cnat_db_scanner_init); + diff --git a/plugins/vcgn-plugin/vcgn/cnat_db_v2.c b/plugins/vcgn-plugin/vcgn/cnat_db_v2.c new file mode 100644 index 00000000..2b43849d --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_db_v2.c @@ -0,0 +1,3802 @@ +/* + *------------------------------------------------------------------ + * cnat_db_v2.c - translation database definitions + * + * Copyright (c) 2007-2013 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ +#include <vlib/vlib.h> +#include <vnet/vnet.h> +#include <vppinfra/vec.h> +#include <vppinfra/bitmap.h> +#include <vppinfra/hash.h> +#include <vppinfra/pool.h> +#include <vppinfra/clib.h> +#include <vppinfra/error.h> + +#include "cnat_db.h" +#include "cnat_config.h" +#include "cnat_global.h" +#include "cnat_v4_functions.h" +#include "cnat_log_api.h" +#include "cnat_cli.h" +#include "spp_platform_trace_log.h" +#include "cnat_bulk_port.h" +#include "nat64_db.h" +#include "dslite_db.h" +#include "cnat_config_api.h" + +#define HASH_TABLE_SIZE 8192 // hash table size +#define THROTTLE_TIME 180 // throttle time value for out of port msg/user + +u8 cnat_db_init_done = 0; + +typedef struct { + /* Locks for multi thread support */ + CLIB_CACHE_LINE_ALIGN_MARK(cacheline0); + pthread_spinlock_t *main_db_lockp; + pthread_spinlock_t *user_db_lockp; + pthread_spinlock_t *session_db_lockp; + + u32 cached_next_index; + /* $$$$ add data here */ + + /* convenience variables */ + vlib_main_t * vlib_main; + vnet_main_t * vnet_main; +} cnat_db_v2_main_t; + +cnat_db_v2_main_t cnat_db_v2_main; + +#if 1 +/* TOBE_PORTED : Remove the following once fixed */ +#undef PREDICT_TRUE +#undef PREDICT_FALSE +#define PREDICT_TRUE(x) (x) +#define PREDICT_FALSE(x) (x) +#endif + +#define foreach_cnat_db_v2_error \ +_(DROP, "error-drop packets") + +typedef enum { +#define _(sym,str) CNAT_DB_V2_##sym, + foreach_cnat_db_v2_error +#undef _ + CNAT_DB_V2_N_ERROR, +} cnat_db_v2_error_t; + +static char * cnat_db_v2_error_strings[] __attribute__((unused)) = { +#define _(sym,string) string, + foreach_cnat_db_v2_error +#undef _ +}; + + +void cnat_table_entry_fill_map(u32 start_addr, u32 end_addr, + cnat_portmap_v2_t **port_map_holder) +{ + u32 this_start_addr, this_end_addr, this_addr, new; + u32 loop_count; + u32 pm_len, i; + cnat_portmap_v2_t *my_pm =0; + cnat_portmap_v2_t *pm = 0; + + my_instance_number = 0; + + this_start_addr = start_addr; + this_end_addr = end_addr; + + /* + * How many new addresses are getting added ?? + */ + /* commenting this. Right now end - start will be for this vCGN instance */ + //new = ((this_end_addr - this_start_addr) / MAX_CORES_PER_PARTITION) + 1; + new = (this_end_addr - this_start_addr) + 1; + + pm = *port_map_holder; + pm_len = vec_len(pm); +#if DEBUG_NOT_COMMENTED + printf("this_start_addr = 0x%08X, this_end_addr = 0x%08X, Num Addr = %d\n", + this_start_addr, this_end_addr, new); + printf("pm_len = %d\n", pm_len); +#endif + /* Check whether the address pool add requested already exists */ + my_pm = pm; + for(i = 0; i< pm_len; i++) { + if(my_pm->ipv4_address == this_start_addr) { + printf("address pool with addr 0x%08X exists\n", this_start_addr); + return; + } + my_pm++; + } + + /* + * For now give a warning message only.... + */ +#if 0 + if ((total_address_pool_allocated + new) > + CNAT_MAX_ADDR_POOL_SIZE_PER_CORE) { + printf("address pool size (%d) would cross permissible limit (%u) \n", + (total_address_pool_allocated + new), + CNAT_MAX_ADDR_POOL_SIZE_PER_CORE); + } +#endif + + total_address_pool_allocated += new; + vec_add2(pm, my_pm, new); + +#if DEBUG_NOT_COMMENTED + printf("total_address_pool_allocated changed from %d to %d (added %d)", + (total_address_pool_allocated - new), + total_address_pool_allocated, new); + printf("vec add is ok\n"); +#endif + + memset(my_pm, 0, new*sizeof(*my_pm)); + this_addr = this_start_addr; + loop_count = 0; /* Sanity counter */ + + while (this_addr <= this_end_addr) { +#if DEBUG_NOT_COMMENTED + printf("loop %d: this addr = 0x%08X\n", loop_count+1, this_addr); +#endif + my_pm->ipv4_address = this_addr; + /* + * Set all bits to "1" indicating all ports are free + */ + memset(my_pm->bm, 0xff, + (((BITS_PER_INST + BITS(uword)-1)/BITS(uword))*(sizeof(uword)))); + //this_addr += MAX_CORES_PER_PARTITION; + this_addr += 1; + my_pm++; + loop_count++; + } + /* + * We should have loop_count same as the new value + */ + if (loop_count != new) { + printf("Mismatch in loop_count (%d) != new (%d)\n", + loop_count, new); + } + + *port_map_holder = pm; + +#if DEBUG_NOT_COMMENTED + printf("revised pm len %d\n", vec_len(*port_map_holder)); +#endif + + return; +} + + +void cnat_delete_session_db_entry (cnat_session_entry_t *ep, u8 log); +void handle_cnat_port_exceeded_logging( + cnat_user_db_entry_t *udb, + cnat_key_t * key, + cnat_vrfmap_t *vrfmap); + +cnat_global_counters_t cnat_global_counters; +u32 last_log_timestamp = 0; +u32 last_user_dyn_port_exc_timestamp = 0; +u32 last_user_stat_port_exc_timestamp = 0; + +index_slist_t *cnat_out2in_hash; +index_slist_t *cnat_in2out_hash; +index_slist_t *cnat_user_hash; +index_slist_t *cnat_timeout_hash; +index_slist_t *cnat_session_hash; + +cnat_main_db_entry_t *cnat_main_db; +cnat_user_db_entry_t *cnat_user_db; +cnat_session_entry_t *cnat_session_db; +cnat_timeout_db_entry_t *cnat_timeout_db; + +cgse_nat_db_entry_t *cgse_nat_db; +cgse_nat_user_db_entry_t *cgse_user_db; +cgse_nat_session_db_entry_t *cgse_session_db; + +nat44_dslite_common_stats_t nat44_dslite_common_stats[255]; /* 0 is for nat44 */ +nat44_dslite_global_stats_t nat44_dslite_global_stats[2]; /* 0 for nat44 and 1 for dslite */ +nat44_counters_stats_t nat44_counters_stats[CNAT_MAX_VRFMAP_ENTRIES]; +/*For displaying show cgn <cgn-name> inside-vrf <vrf-name> counters */ + +/* + * This is the pool of vrf map structures used by latest main-db functions + */ +cnat_vrfmap_t *cnat_map_by_vrf; + +/* + * Have a mapping table of vrf_id-->vrf_map_index + * This helps in easily getting the vrf_map structure during + * main-db create paths + */ +u16 vrf_map_array[CNAT_MAX_VRFMAP_ENTRIES]; +cnat_svi_params_entry svi_params_array[CNAT_MAX_VRFMAP_ENTRIES]; +cnat_ingress_vrfid_name_entry vrfid_name_map[MAX_VRFID] = {{0}}; +u64 in2out_drops_port_limit_exceeded; +u64 in2out_drops_system_limit_reached; +u64 in2out_drops_resource_depletion; +u64 no_translation_entry_drops; +u32 no_sessions; + +#define CNAT_SET_ICMP_MSG_INFO \ +if (PREDICT_TRUE((my_vrfmap->i_vrf < CNAT_MAX_VRFMAP_ENTRIES) && \ + (svi_params_array[my_vrfmap->i_vrf].ipv4_addr))) { \ + info->gen_icmp_msg = icmp_msg_gen_allowed(); \ + info->svi_addr = svi_params_array[my_vrfmap->i_vrf].ipv4_addr; \ +} + +#define CNAT_DEBUG_INSIDE_ERR(err) \ +if (((protocol == CNAT_UDP) && \ + (debug_i_flag & CNAT_DEBUG_ERR_UDP)) || \ + ((protocol == CNAT_TCP) && \ + (debug_i_flag & CNAT_DEBUG_ERR_TCP)) || \ + ((protocol == CNAT_ICMP) && \ + (debug_i_flag & CNAT_DEBUG_ERR_ICMP))) { \ + cnat_db_debug_error(&u_ki, err); \ +} + +#define DSLITE_DEBUG_INSIDE_ERR(err) \ +if (((protocol == CNAT_UDP) && \ + (debug_i_flag & CNAT_DEBUG_ERR_UDP)) || \ + ((protocol == CNAT_TCP) && \ + (debug_i_flag & CNAT_DEBUG_ERR_TCP)) || \ + ((protocol == CNAT_ICMP) && \ + (debug_i_flag & CNAT_DEBUG_ERR_ICMP))) { \ + dslite_db_debug_error(&u_ki, err); \ +} + +#define PORT_LIMIT_LOW_THRESHOLD_FOR_SYSLOG 7 +/* If the max_limit is less than 10, no meaningful throttling can be + * done.. so, log only once per user and never clear the flag + * once the user exceeds limit + */ +#define CHECK_CLEAR_PORT_LIMIT_EXCEED_FLAG(udb, max_limit) \ + if(PREDICT_FALSE(udb->flags & CNAT_USER_DB_PORT_LIMIT_EXCEEDED)) { \ + if(udb->ntranslations < \ + ((max_limit/10)*PORT_LIMIT_LOW_THRESHOLD_FOR_SYSLOG) && \ + max_limit >= 10) { \ + udb->flags = udb->flags & (~CNAT_USER_DB_PORT_LIMIT_EXCEEDED); \ + } \ + } + +#ifdef TOBE_PORTED +/* Commented to remove unused variable warning */ +static char *debug_db_error[] = { + "no error", /* CNAT_SUCCESS */ + "no config", /*CNAT_NO_CONFIG*/ + "not in run state", /*CNAT_NO_VRF_RUN*/ + "no pool for any", /*CNAT_NO_POOL_ANY*/ + "no port for any", /*CNAT_NO_PORT_ANY*/ + "bad in use for any", /*CNAT_BAD_INUSE_ANY*/ + "not found for any", /*CNAT_NOT_FOUND_ANY*/ + "invalid index for direct", /*CNAT_INV_PORT_DIRECT*/ + "deleted addr for direct", /*CNAT_DEL_PORT_DIRECT*/ + "bad in use for direct",/*CNAT_BAD_INUSE_DIRECT*/ + "not found for direct",/*CNAT_NOT_FOUND_DIRECT*/ + "out of port limit", /*CNAT_OUT_LIMIT*/ + "main db limit", /*CNAT_MAIN_DB_LIMIT*/ + "user db limit", /*CNAT_USER_DB_LIMIT*/ + "not static port", /*CNAT_NOT_STATIC_PORT*/ + "bad static port request", /*CNAT_BAD_STATIC_PORT_REQ*/ + "not this core", /*CNAT_NOT_THIS_CORE*/ + "parser error", /*CNAT_ERR_PARSER*/ + "invalid msg id", /*CNAT_ERR_INVALID_MSG_ID*/ + "invalid msg size", /*CNAT_ERR_INVALID_MSG_SIZE*/ + "invalid payload size", /*CNAT_ERR_INVALID_PAYLOAD_SIZE*/ + "bad tcp udp port", /*CNAT_ERR_BAD_TCP_UDP_PORT*/ + "bulk single failure", /*CNAT_ERR_BULK_SINGLE_FAILURE*/ + "xlat id invalid", /*CNAT_ERR_XLAT_ID_INVALID*/ + "xlat v6 prefix invalid", /*CNAT_ERR_XLAT_V6_PREFIX_INVALID*/ + "xlat v4 prefix invalid", /*CNAT_ERR_XLAT_V4_PREFIX_INVALID*/ + "xlat tcp mss invalid", /*CNAT_ERR_XLAT_TCP_MSS_INVALID*/ + "6rd id invalid", /*CNAT_ERR_6RD_ID_INVALID*/ + "6rd v4 tunnel src invalid", /*CNAT_ERR_6RD_V4_TUNNEL_SRC_INVALID*/ + "6rd v6 prefix invalid", /*CNAT_ERR_6RD_V6_PREFIX_INVALID*/ + "6rd v6 BR unicast invalid", /*CNAT_ERR_6RD_V6_BR_UNICAST_INVALID*/ + "6rd v4 prefix masklen invalid", /*CNAT_ERR_6RD_V4_PREFIX_MASK_LEN_INVALID*/ + "6rd v4 suffix masklen invalid", /*CNAT_ERR_6RD_V4_SUFFIX_MASK_LEN_INVALID*/ + "6rd v4 combo masklen invalid", /*CNAT_ERR_6RD_V4_COMBO_MASK_LEN_INVALID*/ + "6rd tunnel mtu invalid", /*CNAT_ERR_6RD_TUNNEL_MTU_INVALID*/ + "6rd tunnel ttl invalid", /*CNAT_ERR_6RD_TUNNEL_TTL_INVALID*/ + "6rd tunnel tos invalid", /*CNAT_ERR_6RD_TUNNEL_TOS_INVALID*/ +}; +#endif + +f64 port_log_timestamps[HASH_TABLE_SIZE]; /* 32 KB array per core */ + +void port_exceeded_msg_log (u32 src_addr, u16 i_vrf) +{ + u32 hash_value; + f64 current_timestamp; + vlib_main_t *vlib_main; + + vlib_main = vlib_get_main(); + current_timestamp = vlib_time_now((vlib_main_t *) vlib_main); + + hash_value = ((src_addr >> 16) ^ ((src_addr & 0xffff) ^ i_vrf)) % (1024*8); + + if (PREDICT_FALSE((current_timestamp - port_log_timestamps[hash_value]) > THROTTLE_TIME)) { + u32 arg[2] = {i_vrf, src_addr}; + /* update timestamp */ + port_log_timestamps[hash_value] = current_timestamp; + spp_printf(CNAT_USER_OUT_OF_PORTS, 2, arg); + } + + return ; +} + +static void log_port_alloc_error(cnat_errno_t error, cnat_key_t *k) +{ + u32 error_code; + u32 arr[] = {k->k.vrf, k->k.ipv4, k->k.port}; + switch (error) + { + case CNAT_NO_POOL_ANY: + error_code = CNAT_NO_POOL_FOR_ANY_ERROR; + break; + case CNAT_NO_PORT_ANY: + error_code = CNAT_NO_PORT_FOR_ANY_ERROR; + break; + case CNAT_ERR_PARSER: + error_code = CNAT_WRONG_PORT_ALLOC_TYPE; + break; + case CNAT_BAD_INUSE_ANY: + error_code = CNAT_BAD_INUSE_ANY_ERROR; + break; + case CNAT_BAD_INUSE_DIRECT: + error_code = CNAT_BAD_INUSE_DIRECT_ERROR; + break; + case CNAT_NOT_FOUND_ANY: + error_code = CNAT_NOT_FOUND_ANY_ERROR; + break; + case CNAT_NOT_FOUND_DIRECT: + error_code = CNAT_NOT_FOUND_DIRECT_ERROR; + break; + case CNAT_INV_PORT_DIRECT: + error_code = CNAT_INV_PORT_FOR_DIRECT_ERROR; + break; + default: + error_code = CNAT_NEW_PORT_ALLOC_ERROR; /* If this code is seen in the log, + it means, new error codes are to be added here */ + break; + } + spp_printf(error_code, 3, arr); +} + +void cnat_db_debug_error(cnat_db_key_bucket_t *u_ki, + cnat_errno_t error) +{ + if (PREDICT_FALSE((u_ki->k.k.vrf == debug_i_vrf) && + ((u_ki->k.k.ipv4 >= debug_i_addr_start) && + (u_ki->k.k.ipv4 <= debug_i_addr_end)))) { +#ifdef DEBUG_PRINTF_ENABLED + PLATFORM_DEBUG_PRINT("failed to allocate port due to %s " + "for i-vrf 0x%x addr 0x%x port 0x%x\n", + debug_db_error[error], u_ki->k.k.vrf, + u_ki->k.k.ipv4, u_ki->k.k.port); +#endif + { + u32 arg[] = {u_ki->k.k.vrf, u_ki->k.k.ipv4, u_ki->k.k.port}; + spp_printf(error, 3, arg); + } + } +} + +void dslite_db_debug_error(dslite_db_key_bucket_t *u_ki, + cnat_errno_t error) +{ + if (PREDICT_FALSE((u_ki->dk.ipv4_key.k.vrf == debug_i_vrf) && + ((u_ki->dk.ipv4_key.k.ipv4 >= debug_i_addr_start) && + (u_ki->dk.ipv4_key.k.ipv4 <= debug_i_addr_end)))) { +#ifdef DEBUG_PRINTF_ENABLED + PLATFORM_DEBUG_PRINT("failed to allocate port due to %s " + "for i-vrf 0x%x addr 0x%x port 0x%x\n", + debug_db_error[error], u_ki->dk.ipv4_key.k.vrf, + u_ki->dk.ipv4_key.k.ipv4, u_ki->dk.ipv4_key.k.port); +#endif + { + u32 arg[] = {u_ki->dk.ipv4_key.k.vrf, u_ki->dk.ipv4_key.k.ipv4, u_ki->dk.ipv4_key.k.port}; + spp_printf(error, 3, arg); + } + } +} + +void cnat_db_debug_i2o_drop(cnat_db_key_bucket_t *ki) +{ + if (PREDICT_FALSE(((ki->k.k.vrf & CNAT_VRF_MASK) == debug_i_vrf) && + ((ki->k.k.ipv4 >= debug_i_addr_start) && + (ki->k.k.ipv4 <= debug_i_addr_end)))) { +#ifdef DEBUG_PRINTF_ENABLED + PLATFORM_DEBUG_PRINT("pakcet[i-vrf 0x%x addr 0x%x port 0x%x] dropped\n", + ki->k.k.vrf, ki->k.k.ipv4, ki->k.k.port); +#endif + { + u32 arg[] = {ki->k.k.vrf, ki->k.k.ipv4, ki->k.k.port}; + spp_printf(CNAT_PACKET_DROP_ERROR, 3, arg); + } + } +} + +void cnat_db_in2out_hash_delete (cnat_main_db_entry_t *ep, cnat_user_db_entry_t *up) +{ + u64 a, b, c; + u32 index, bucket; + cnat_main_db_entry_t *this, *prev; + +#ifdef DSLITE_DEF + if (PREDICT_FALSE(ep->flags & CNAT_DB_DSLITE_FLAG)) { + dslite_key_t dk = { + {up->ipv6[0], up->ipv6[1], up->ipv6[2], up->ipv6[3]} , + {ep->in2out_key.k.ipv4, ep->in2out_key.k.port, ep->in2out_key.k.vrf} + }; + DSLITE_V6_GET_HASH((&dk), + bucket, + CNAT_MAIN_HASH_MASK); + DSLITE_PRINTF(1, "Delete1 DSL main hash bucket ..%u\n", bucket); + } else { + CNAT_V4_GET_HASH(ep->in2out_key.key64, + bucket, CNAT_MAIN_HASH_MASK) + DSLITE_PRINTF(1, "Delete1 NAT44 main hash bucket ..%u\n", bucket); + } +#else + CNAT_V4_GET_HASH(ep->in2out_key.key64, + bucket, CNAT_MAIN_HASH_MASK) +#endif + + index = cnat_in2out_hash[bucket].next; + + ASSERT(index != EMPTY); + + prev = 0; + do { + this = cnat_main_db + index; + if (PREDICT_TRUE(this == ep)) { + if (prev == 0) { + cnat_in2out_hash[bucket].next = ep->in2out_hash.next; + return; + } else { + prev->in2out_hash.next = ep->in2out_hash.next; + return; + } + } + prev = this; + index = this->in2out_hash.next; + } while (index != EMPTY); + + ASSERT(0); +} + +void cnat_db_out2in_hash_delete (cnat_main_db_entry_t *ep) +{ + u64 a, b, c; + u32 index, bucket; + cnat_main_db_entry_t *this, *prev; + + CNAT_V4_GET_HASH(ep->out2in_key.key64, + bucket, CNAT_MAIN_HASH_MASK) + + index = cnat_out2in_hash[bucket].next; + + ASSERT(index != EMPTY); + + prev = 0; + do { + this = cnat_main_db + index; + if (PREDICT_TRUE(this == ep)) { + if (prev == 0) { + cnat_out2in_hash[bucket].next = ep->out2in_hash.next; + return; + } else { + prev->out2in_hash.next = ep->out2in_hash.next; + return; + } + } + prev = this; + index = this->out2in_hash.next; + } while (index != EMPTY); + + ASSERT(0); +} + +cnat_main_db_entry_t* +cnat_main_db_lookup_entry(cnat_db_key_bucket_t *ki) +{ + u64 a, b, c; + u32 index; + cnat_main_db_entry_t *db; + + CNAT_V4_GET_HASH(ki->k.key64, + ki->bucket, + CNAT_MAIN_HASH_MASK); + + index = cnat_in2out_hash[ki->bucket].next; + if (PREDICT_TRUE(index == EMPTY)) { + return (NULL); + } + + do { + db = cnat_main_db + index; + if (PREDICT_TRUE(db->in2out_key.key64 == ki->k.key64)) { + return db; + } + index = db->in2out_hash.next; + } while (index != EMPTY); + + return (NULL); +} + +void cnat_user_db_delete (cnat_user_db_entry_t *up) +{ + u64 a, b, c; + u32 index, bucket; + cnat_user_db_entry_t *this, *prev; + + if (PREDICT_FALSE(up->flags & CNAT_USER_DB_NAT64_FLAG) != 0) { + /* Preventive check - Not a NAT44 entry */ + return; + } + + pthread_spin_lock(cnat_db_v2_main.user_db_lockp); +#if 1 + if(PREDICT_FALSE(up->flags & CNAT_USER_DB_DSLITE_FLAG)) { + dslite_key_t dk = { + {up->ipv6[0], up->ipv6[1], up->ipv6[2], up->ipv6[3]} , + {{up->key.k.ipv4, up->key.k.port, up->key.k.vrf}} + }; + + DSLITE_V6_GET_HASH((&dk), + bucket, + CNAT_USER_HASH_MASK); + DSLITE_PRINTF(1, "Delete1 DSL user hash bucket ..%u\n", bucket); + } else { + CNAT_V4_GET_HASH(up->key.key64, + bucket, CNAT_USER_HASH_MASK) + DSLITE_PRINTF(1, "Delete1 NAT44 user hash bucket ..%u\n", bucket); + } +#else + CNAT_V4_GET_HASH(up->key.key64, + bucket, CNAT_USER_HASH_MASK) + DSLITE_PRINTF(1, "Delete2 NAT44 user hash bucket ..%u\n", bucket); +#endif + + index = cnat_user_hash[bucket].next; + + ASSERT(index != EMPTY); + + prev = 0; + do { + this = cnat_user_db + index; + if (PREDICT_TRUE(this == up)) { + if (prev == 0) { + cnat_user_hash[bucket].next = up->user_hash.next; + goto found; + } else { + prev->user_hash.next = up->user_hash.next; + goto found; + } + } + prev = this; + index = this->user_hash.next; + } while (index != EMPTY); + + ASSERT(0); + + found: + pool_put(cnat_user_db, up); + pthread_spin_unlock(cnat_db_v2_main.user_db_lockp); +} + +cnat_user_db_entry_t* +cnat_user_db_lookup_entry(cnat_db_key_bucket_t *uki) +{ + u64 a, b, c; + u32 index; + cnat_user_db_entry_t *udb=NULL; + + CNAT_V4_GET_HASH(uki->k.key64, + uki->bucket, + CNAT_USER_HASH_MASK) + + /* now: index in user vector */ + index = cnat_user_hash[uki->bucket].next; + if (PREDICT_TRUE(index != EMPTY)) { + do { + udb = cnat_user_db + index; + if (PREDICT_FALSE(udb->key.key64 == uki->k.key64)) { + return udb; + } + index = udb->user_hash.next; + } while (index != EMPTY); + } + return (NULL); +} + +cnat_user_db_entry_t* +cnat_user_db_create_entry(cnat_db_key_bucket_t *uki, + u32 portmap_index) +{ + cnat_user_db_entry_t *udb = NULL; + + pthread_spin_lock(cnat_db_v2_main.user_db_lockp); + pool_get(cnat_user_db, udb); + memset(udb, 0, sizeof(*udb)); + + udb->ntranslations = 1; + udb->portmap_index = portmap_index; + udb->key.key64 = uki->k.key64; + /* Add this user to the head of the bucket chain */ + udb->user_hash.next = + cnat_user_hash[uki->bucket].next; + cnat_user_hash[uki->bucket].next = udb - cnat_user_db; + +#ifndef NO_BULK_LOGGING + INIT_BULK_CACHE(udb) +#endif /* NO_BULK_LOGGING */ + pthread_spin_unlock(cnat_db_v2_main.user_db_lockp); + return udb; +} + +cnat_main_db_entry_t* +cnat_create_main_db_entry_and_hash(cnat_db_key_bucket_t *ki, + cnat_db_key_bucket_t *ko, + cnat_user_db_entry_t *udb) +{ + u64 a, b, c; + u32 db_index; + cnat_main_db_entry_t *db = NULL; + + pool_get(cnat_main_db, db); + memset(db, 0, sizeof(*db)); + + db_index = db - cnat_main_db; + db->in2out_key.k.ipv4 = ki->k.k.ipv4; + db->in2out_key.k.port = ki->k.k.port; + db->in2out_key.k.vrf = ki->k.k.vrf; + db->out2in_key.k.ipv4 = ko->k.k.ipv4; + db->out2in_key.k.port = ko->k.k.port; + db->out2in_key.k.vrf = ko->k.k.vrf; + + db->user_ports.next = db_index; + db->user_ports.prev = db_index; + db->user_index = udb - cnat_user_db; + //db->portmap_index = udb->portmap_index; + db->flags &= ~(CNAT_DB_DSLITE_FLAG); // Mark that it is not dslite + if (PREDICT_FALSE(udb->ntranslations == 1)) { + /* + * first port for this src vrf/src ip addr + */ + udb->translation_list_head_index = db_index; + } else { + index_dlist_addtail(udb->translation_list_head_index, + (u8 *)cnat_main_db, sizeof(cnat_main_db[0]), + STRUCT_OFFSET_OF(cnat_main_db_entry_t, user_ports), + db_index); + } + + /* + * setup o2i hash key + */ + CNAT_V4_GET_HASH(ko->k.key64, + ko->bucket, + CNAT_MAIN_HASH_MASK) + db->out2in_hash.next = cnat_out2in_hash[ko->bucket].next; + cnat_out2in_hash[ko->bucket].next = db_index; + /* + * setup i2o hash key, bucket is already calculate + */ + db->in2out_hash.next = cnat_in2out_hash[ki->bucket].next; + cnat_in2out_hash[ki->bucket].next = db_index; + +#if DEBUG > 1 + printf("\nMy_Instance_Number %d: Bucket %d, Db_Index %d", + my_instance_number, ki->bucket, db_index); + printf("\nInside (VRF 0x%x, IP 0x%x, PORT 0x%x)", + db->in2out_key.k.vrf, db->in2out_key.k.ipv4, db->in2out_key.k.port); + printf("\nOutside (VRF 0x%x, IP 0x%x, PORT 0x%x)", + db->out2in_key.k.vrf, db->out2in_key.k.ipv4, db->out2in_key.k.port); + printf("\nUser Index %d, IP 0x%x", + db->user_index, udb->key.k.ipv4); +#endif + + NAT44_COMMON_STATS.active_translations++; + + return db; +} + +static inline void pptp_clear_all_channels( + cnat_main_db_entry_t *db) +{ + u32 db_index, current_db_index; + cnat_main_db_entry_t *temp_db; + + /* clear all channels */ + + db_index = db->proto_data.pptp_list.next; + current_db_index = db - cnat_main_db; + + while( db_index != EMPTY) { + temp_db = cnat_main_db + db_index; + db_index = temp_db->proto_data.pptp_list.next; + temp_db->entry_expires = 0; + if(PREDICT_FALSE(temp_db->proto_data.pptp_list.prev + == current_db_index)) { // Decouple child GREs from parent + temp_db->proto_data.pptp_list.prev = EMPTY; + } + } + + db->proto_data.pptp_list.next = EMPTY; +} + +void pptp_remove_channel_from_tunnel(cnat_main_db_entry_t *db) { + + cnat_main_db_entry_t *prev_db, *next_db; + + prev_db = cnat_main_db + db->proto_data.pptp_list.prev; + next_db = cnat_main_db + db->proto_data.pptp_list.next; + + /* remove entry from the tunnel list */ + if(PREDICT_TRUE(db->proto_data.pptp_list.prev != EMPTY)) { + prev_db->proto_data.pptp_list.next = + db->proto_data.pptp_list.next ; + } + + if(db->proto_data.pptp_list.next != EMPTY) { + next_db->proto_data.pptp_list.prev + = db->proto_data.pptp_list.prev; + } + +} + +void cnat_delete_main_db_entry_v2 (cnat_main_db_entry_t *ep) +{ + u32 main_db_index; + u32 vrfmap_len, udb_len; + cnat_user_db_entry_t *up =0; + cnat_portmap_v2_t *pm =0; + cnat_portmap_v2_t *my_pm =0; + cnat_vrfmap_t *my_vrfmap =0; + u16 static_port_range; +#ifndef NO_BULK_LOGGING + bulk_alloc_size_t bulk_size; + int nfv9_log_req = BULK_ALLOC_NOT_ATTEMPTED; +#endif + pool_header_t *h = pool_header(cnat_user_db); + u16 instance = 0; + u32 my_index; + + + if (PREDICT_FALSE(ep->flags & CNAT_DB_NAT64_FLAG) != 0) { + /* Preventive check - Not a NAT44 entry */ + return; + } + + pthread_spin_lock(cnat_db_v2_main.main_db_lockp); + if(PREDICT_FALSE(ep->flags & + CNAT_DB_FLAG_PPTP_TUNNEL_ACTIVE)) { + pptp_clear_all_channels(ep); + PPTP_DECR(active_tunnels); + } + + if(PREDICT_FALSE(ep->flags & + CNAT_DB_FLAG_PPTP_GRE_ENTRY)) { + pptp_remove_channel_from_tunnel(ep); + PPTP_DECR(active_channels); + } + + /* This function gets called from various locations.. + * many times from config handler.. so we + * to ensure that multiple sessions if any are + * released + */ + + if(PREDICT_FALSE(ep->nsessions > 1)) { + cnat_session_entry_t *sdb; + while(ep->nsessions > 1 && + ep->session_head_index != EMPTY) { + sdb = cnat_session_db + ep->session_head_index; + cnat_delete_session_db_entry(sdb, TRUE); + } + } + + /* Find the set of portmaps for the outside vrf */ + vrfmap_len = vec_len(cnat_map_by_vrf); + udb_len = vec_len(cnat_user_db); + + /* In case of invalid user just return, deleting only main db + * is not a good idea, since some valid user db entry might be pointing + * to that main db and hence leave the dbs in a inconsistent state + */ + if (PREDICT_FALSE((ep->user_index >= udb_len) || + (clib_bitmap_get(h->free_bitmap, ep->user_index)))) { +#ifdef DEBUG_PRINTF_ENABLED + printf("invalid/unused user index in db %d\n", ep->user_index); +#endif + spp_printf(CNAT_INV_UNUSED_USR_INDEX, 1, (u32 *) &(ep->user_index)); + cnat_main_db_entry_dump(ep); + goto unlock; + } + + up = cnat_user_db + ep->user_index; + +/* Point to the right portmap list */ +if (PREDICT_FALSE(ep->flags & CNAT_DB_DSLITE_FLAG)) { + instance = ep->dslite_nat44_inst_id; + pm = dslite_table_db_ptr[instance].portmap_list; + if(PREDICT_FALSE((pm == NULL))) { + DSLITE_PRINTF(3, "NULL portmap list for dslite_id %u, state %u\n", + instance, dslite_table_db_ptr[instance].state); + cnat_main_db_entry_dump(ep); + goto delete_entry; + } + static_port_range = + STAT_PORT_RANGE_FROM_INST_PTR(&(dslite_table_db_ptr[instance])); + /* + * Netflow logging API for delete event + */ + bulk_size = + BULKSIZE_FROM_VRFMAP(&(dslite_table_db_ptr[instance])); +} else { + if (PREDICT_FALSE(ep->vrfmap_index >= vrfmap_len)) { +#ifdef DEBUG_PRINTF_ENABLED + printf("invalid vrfmap index in db\n"); +#endif + spp_printf(CNAT_INVALID_VRFMAP_INDEX, 0, NULL); + cnat_main_db_entry_dump(ep); + goto delete_entry; + } + instance = NAT44_RESERVED_INST_ID; + my_vrfmap = cnat_map_by_vrf + ep->vrfmap_index; + pm = my_vrfmap->portmap_list; + static_port_range = cnat_static_port_range; + bulk_size = BULKSIZE_FROM_VRFMAP(my_vrfmap); +} + + if (PREDICT_FALSE(ep->flags & CNAT_DB_FLAG_PORT_PAIR)) { + /* Give back the port(s) */ + cnat_port_free_v2_bulk(pm, up->portmap_index, + PORT_PAIR, ep->out2in_key.k.port, up, static_port_range +#ifndef NO_BULK_LOGGING + , bulk_size, &nfv9_log_req +#endif + ); + } else { + /* Give back the port(s) */ + cnat_port_free_v2_bulk (pm, up->portmap_index, + PORT_SINGLE, ep->out2in_key.k.port, up, static_port_range +#ifndef NO_BULK_LOGGING + , bulk_size, &nfv9_log_req +#endif + ); + } + + if (PREDICT_TRUE(!(ep->flags & CNAT_DB_DSLITE_FLAG))) { + if(PREDICT_FALSE(nfv9_log_req != CACHE_ALLOC_NO_LOG_REQUIRED)) { + if(PREDICT_FALSE(my_vrfmap->nf_logging_policy == SESSION_LOG_ENABLE)) { + if(ep->nsessions != 0) { + cnat_nfv9_nat44_log_session_delete(ep, NULL, my_vrfmap); + } + } else { + cnat_nfv9_log_mapping_delete(ep, my_vrfmap +#ifndef NO_BULK_LOGGING + , nfv9_log_req +#endif + ); + } + if(PREDICT_TRUE((my_vrfmap->syslog_logging_policy != SESSION_LOG_ENABLE) || + (ep->nsessions != 0))) { + cnat_syslog_nat44_mapping_delete(ep, my_vrfmap, NULL +#ifndef NO_BULK_LOGGING + , nfv9_log_req +#endif + ); + } + } + } else { + if(PREDICT_FALSE(nfv9_log_req != CACHE_ALLOC_NO_LOG_REQUIRED)) { + if(PREDICT_FALSE( dslite_table_db_ptr[instance].nf_logging_policy == + SESSION_LOG_ENABLE)) { + cnat_nfv9_ds_lite_log_session_delete(ep, + (dslite_table_db_ptr + instance),NULL); + } else { + cnat_nfv9_ds_lite_mapping_delete(ep, + (dslite_table_db_ptr + instance) +#ifndef NO_BULK_LOGGING + , nfv9_log_req +#endif + ); + } +#ifdef TOBE_PORTED + cnat_syslog_ds_lite_mapping_delete(ep, + (dslite_table_db_ptr + instance), NULL +#ifndef NO_BULK_LOGGING + , nfv9_log_req +#endif + ); +#endif /* TOBE_PORTED */ + } + } + +delete_entry: + + main_db_index = ep - cnat_main_db; + + pthread_spin_lock(cnat_db_v2_main.user_db_lockp); + up->ntranslations--; + pthread_spin_unlock(cnat_db_v2_main.user_db_lockp); + + /* + * when user reaches max allowed port limit + * we generate icmp msg and inc the counter + * when counter reach the icmp msg rate limit + * we stop icmp msg gen + * when a user port is freed + * that means we need to clear the msg gen counter + * so that next time + * reach max port limit, we can generate new icmp msg again + */ + up->icmp_msg_count = 0; + + up->translation_list_head_index = index_dlist_remelem ( + up->translation_list_head_index, (u8 *)cnat_main_db, + sizeof (cnat_main_db[0]), + STRUCT_OFFSET_OF(cnat_main_db_entry_t, user_ports), + main_db_index); + + cnat_db_in2out_hash_delete(ep, up); + + if (PREDICT_FALSE(up->ntranslations == 0)) { + ASSERT(up->translation_list_head_index == EMPTY); + nat44_dslite_common_stats[instance].num_subscribers--; + my_index = up->portmap_index; + my_pm = pm + my_index; + if(PREDICT_TRUE(my_pm->private_ip_users_count)) { + my_pm->private_ip_users_count--; +#ifdef DEBUG_PRINTF_IP_N_TO_1_ENABLED + PLATFORM_DEBUG_PRINT("\n cnat_delete_main_db_entry_v2 " + "private_ip_users_count = %d", + my_pm->private_ip_users_count); +#endif + + } + cnat_user_db_delete(up); + + } + + /* Remove from main DB hashes */ + //cnat_db_in2out_hash_delete(ep); + cnat_db_out2in_hash_delete(ep); + + pool_put(cnat_main_db, ep); + + if(PREDICT_FALSE(ep->flags & CNAT_DB_FLAG_STATIC_PORT)) { + nat44_dslite_common_stats[instance].num_static_translations--; + } else { + nat44_dslite_common_stats[instance].num_dynamic_translations--; + } + nat44_dslite_common_stats[instance].active_translations--; + nat44_dslite_global_stats[!!(instance - 1)].translation_delete_count ++; +unlock: + pthread_spin_unlock(cnat_db_v2_main.main_db_lockp); +} + +cnat_main_db_entry_t* +cnat_main_db_lookup_entry_out2in (cnat_db_key_bucket_t *ko) +{ + u64 a, b, c; + u32 index; + cnat_main_db_entry_t *db; + + CNAT_V4_GET_HASH(ko->k.key64, + ko->bucket, + CNAT_MAIN_HASH_MASK); + + index = cnat_out2in_hash[ko->bucket].next; + if (PREDICT_TRUE(index == EMPTY)) { + return (NULL); + } + + do { + db = cnat_main_db + index; + if (PREDICT_TRUE(db->out2in_key.key64 == ko->k.key64)) { + return db; + } + index = db->out2in_hash.next; + } while (index != EMPTY); + + return (NULL); +} + +/* Creates 2 sessions. + * Moves the default dest info from mdb to first session + * Fills the dest_info details in to second session and + * returns the pointer to second session + */ +cnat_session_entry_t *cnat_handle_1to2_session( + cnat_main_db_entry_t *mdb, + cnat_key_t *dest_info) +{ + cnat_key_t old_dest_info; + pool_header_t *h; + u32 free_session = 0; + u16 instance; + cnat_session_entry_t *session_db1 = NULL, *session_db2 = NULL; + + h = pool_header(cnat_session_db); + free_session = vec_len(h->free_indices) - 1; + + if (PREDICT_FALSE(free_session < 2)) { + if (mdb->flags & CNAT_DB_DSLITE_FLAG) { + instance = mdb->dslite_nat44_inst_id; + } else { + instance = NAT44_RESERVED_INST_ID; + } + + /* we need 2 sessions here, return NULL */ + nat44_dslite_common_stats[instance].drops_sessiondb_limit_exceeded++; + return NULL; + } + + old_dest_info.k.ipv4 = mdb->dst_ipv4; + old_dest_info.k.port = mdb->dst_port; + old_dest_info.k.vrf = mdb->in2out_key.k.vrf; + + /* create 2 new sessions */ + session_db1 = cnat_create_session_db_entry(&old_dest_info, + mdb, FALSE); + + if(PREDICT_FALSE(session_db1 == NULL)) { + return NULL; + } + + /* update pkt info to session 2 */ + session_db2 = cnat_create_session_db_entry(dest_info, + mdb, TRUE); + + if(PREDICT_FALSE(session_db2 == NULL)) { + cnat_delete_session_db_entry(session_db1, FALSE); + return NULL; + } + /* update main db info to session 1 */ + cnat_dest_update_main2session(mdb, session_db1); + + return session_db2; +} + +/* The below function shold be called only + * when a NAT44 STATIC entry received traffic + * for the first time. This is to ensure + * the destination is noted and logged + */ +void cnat_add_dest_n_log( + cnat_main_db_entry_t *mdb, + cnat_key_t *dest_info) +{ + + if(PREDICT_FALSE(mdb->nsessions != 0)) { + return; /* Should not have been called */ + } + + mdb->dst_ipv4 = dest_info->k.ipv4; + mdb->dst_port = dest_info->k.port; + mdb->nsessions = 1; + mdb->entry_expires = cnat_current_time; + u16 instance; + + if (mdb->flags & CNAT_DB_DSLITE_FLAG) { + instance = mdb->dslite_nat44_inst_id; + cnat_session_log_ds_lite_mapping_create(mdb, + (dslite_table_db_ptr + instance),NULL); + } else { + instance = NAT44_RESERVED_INST_ID; + cnat_vrfmap_t *my_vrfmap = cnat_map_by_vrf + mdb->vrfmap_index; + cnat_session_log_nat44_mapping_create(mdb, 0, my_vrfmap); + } +} + +/* + * this function is called by exception node + * when lookup is fialed in i2o node + * + * if reash per user port limit, + * set user_db_entry pointer, and error == CNAT_OUT_LIMIT + */ +static cnat_main_db_entry_t* +_cnat_get_main_db_entry_v2(cnat_db_key_bucket_t *ki, + port_pair_t port_pair_type, + port_type_t port_type, + cnat_gen_icmp_info *info, + cnat_key_t *dest_info) +{ + u16 protocol; + cnat_errno_t rv; + cnat_db_key_bucket_t u_ki, ko; + u32 my_index, free_main, free_user; + u32 current_timestamp; + u16 my_vrfmap_index; + u16 my_vrfmap_entry_found = 0; + cnat_vrfmap_t *my_vrfmap =0; + cnat_portmap_v2_t *pm =0; + cnat_user_db_entry_t *udb = 0; + cnat_main_db_entry_t *db = 0; + pool_header_t *h; + u16 port_limit; + cnat_portmap_v2_t *my_pm = 0; + +#ifndef NO_BULK_LOGGING + int nfv9_log_req = BULK_ALLOC_NOT_ATTEMPTED; +#endif + + + /* + * need to try lookup again because + * second pkt may come here before the entry is created + * by receiving first pkt due to high line rate. + */ + info->gen_icmp_msg = CNAT_NO_ICMP_MSG; + info->error = CNAT_SUCCESS; + db = cnat_main_db_lookup_entry(ki); + if (PREDICT_TRUE(db)) { + /* what if the source is talking to a + * new dest now? We will have to handle this case and + * take care of - creating session db and logging + */ + if(PREDICT_FALSE((!dest_info->k.ipv4) && (!dest_info->k.port))) { + return db; /* if dest_info is null don't create session */ + } + if(PREDICT_TRUE((db->dst_ipv4 == dest_info->k.ipv4) && + (db->dst_port == dest_info->k.port))) { + return db; + } + dest_info->k.vrf = db->in2out_key.k.vrf; + /* Src is indeed talking to a different dest */ + cnat_session_entry_t *session_db2 = NULL; + if(PREDICT_TRUE(db->nsessions == 1)) { + session_db2 = cnat_handle_1to2_session(db, dest_info); + if(PREDICT_TRUE(session_db2 != NULL)) { + CNAT_DB_TIMEOUT_RST(session_db2); + return db; + } else { + info->error = CNAT_ERR_NO_SESSION_DB; + return NULL; + } + } else if(PREDICT_FALSE(db->nsessions == 0)) { + /* Should be static entry.. should never happen + */ + if(PREDICT_TRUE(dest_info->k.ipv4 != 0)) { + cnat_add_dest_n_log(db, dest_info); + } + return db; + } else { + /* The src has already created multiple sessions.. very rare + */ + session_db2 = cnat_create_session_db_entry(dest_info, + db, TRUE); + if(PREDICT_TRUE(session_db2 != NULL)) { + CNAT_DB_TIMEOUT_RST(session_db2); + return db; + } else { + info->error = CNAT_ERR_NO_SESSION_DB; + return NULL; + } + } + + } + + /* + * step 1. check if outside vrf is configured or not + * and Find the set of portmaps for the outside vrf + * insider vrf is one to one mappted to outside vrf + * key is vrf and ip only + * ki.k.k.vrf has protocol bits, mask out + */ + protocol = ki->k.k.vrf & CNAT_PRO_MASK; + u_ki.k.k.vrf = ki->k.k.vrf & CNAT_VRF_MASK; + u_ki.k.k.ipv4 = ki->k.k.ipv4; + u_ki.k.k.port = 0; + + my_vrfmap_index = vrf_map_array[u_ki.k.k.vrf]; + my_vrfmap = cnat_map_by_vrf + my_vrfmap_index; + + my_vrfmap_entry_found = ((my_vrfmap_index != VRF_MAP_ENTRY_EMPTY) && + (my_vrfmap->status == S_RUN) && + (my_vrfmap->i_vrf == u_ki.k.k.vrf)); + + if (PREDICT_FALSE(!my_vrfmap_entry_found)) { + u32 arr[] = {ki->k.k.vrf, ki->k.k.ipv4, ki->k.k.port}; + if ((my_vrfmap_index == VRF_MAP_ENTRY_EMPTY) || + (my_vrfmap->i_vrf == u_ki.k.k.vrf)) { + info->error = CNAT_NO_CONFIG; + CNAT_DEBUG_INSIDE_ERR(CNAT_NO_CONFIG) + spp_printf(CNAT_NO_CONFIG_ERROR, 3, arr); + } else { + info->error = CNAT_NO_VRF_RUN; + CNAT_DEBUG_INSIDE_ERR(CNAT_NO_VRF_RUN) + spp_printf(CNAT_NO_VRF_RUN_ERROR, 3, arr); + } + + return (NULL); + } + + pm = my_vrfmap->portmap_list; + + port_limit = my_vrfmap->port_limit; + if(PREDICT_FALSE(!port_limit)) { + port_limit = cnat_main_db_max_ports_per_user; + } + /* + * set o2i key with protocl bits + */ + ko.k.k.vrf = my_vrfmap->o_vrf | protocol; + + /* + * step 2. check if src vrf, src ip addr is alreay + * in the user db + * if yes, use PORT_ALLOC_DIRECTED + * if no, use PORT_ALLOC_ANY since it is first time + */ + udb = cnat_user_db_lookup_entry(&u_ki); + if (PREDICT_TRUE(udb)) { + /* + * not first time allocate port for this user + * check limit + */ + if (PREDICT_FALSE(udb->ntranslations >= + port_limit)) { + /* Check for the port type here. If we are getting + * a STATIC PORT, allow the config. + */ + if (PREDICT_TRUE(port_type != PORT_TYPE_STATIC)) { + info->error = CNAT_OUT_LIMIT; + CNAT_SET_ICMP_MSG_INFO + CNAT_DEBUG_INSIDE_ERR(CNAT_OUT_LIMIT) + port_exceeded_msg_log(u_ki.k.k.ipv4, u_ki.k.k.vrf); + in2out_drops_port_limit_exceeded ++; + u_ki.k.k.port = ki->k.k.port; + u_ki.k.k.vrf = ki->k.k.vrf; + handle_cnat_port_exceeded_logging(udb, &u_ki.k, my_vrfmap); + return (NULL); + } + } + CHECK_CLEAR_PORT_LIMIT_EXCEED_FLAG(udb, + port_limit) + + /* + * check if main db has space to accomodate new entry + */ + h = pool_header(cnat_main_db); + + free_main = vec_len(h->free_indices) - 1; + if (PREDICT_FALSE(!free_main)) { + info->error = CNAT_MAIN_DB_LIMIT; + CNAT_SET_ICMP_MSG_INFO + in2out_drops_system_limit_reached ++; + CNAT_DEBUG_INSIDE_ERR(CNAT_MAIN_DB_LIMIT) + + current_timestamp = spp_trace_log_get_unix_time_in_seconds(); + if (PREDICT_FALSE((current_timestamp - last_log_timestamp) > + 1800)) { + spp_printf(CNAT_SESSION_THRESH_EXCEEDED, 0, NULL); + last_log_timestamp = current_timestamp; + } + +#ifdef UT_TEST_CODE + printf("Limit reached : OLD USER"); +#endif + return NULL; + } + + /* + * allocate port, from existing mapping + */ + my_index = udb->portmap_index; + + if (PREDICT_FALSE(port_type == PORT_TYPE_STATIC)) { + rv = cnat_static_port_alloc_v2_bulk(pm, + PORT_ALLOC_DIRECTED, + port_pair_type, + ki->k.k.ipv4, + ki->k.k.port, + &my_index, + &(ko.k.k.ipv4), + &(ko.k.k.port), + cnat_static_port_range +#ifndef NO_BULK_LOGGING + , + udb, BULKSIZE_FROM_VRFMAP(my_vrfmap), + &nfv9_log_req +#endif + , my_vrfmap->ip_n_to_1 + ); + + } else if (PREDICT_TRUE(port_type != PORT_TYPE_RTSP) ) { + + rv = cnat_dynamic_port_alloc_v2_bulk(pm, + PORT_ALLOC_DIRECTED, + port_pair_type, + &my_index, + &(ko.k.k.ipv4), + &(ko.k.k.port), + cnat_static_port_range +#ifndef NO_BULK_LOGGING + , + udb, BULKSIZE_FROM_VRFMAP(my_vrfmap), + &nfv9_log_req +#endif + , my_vrfmap->ip_n_to_1, + &(my_vrfmap->rseed_ip) + ); + + } else { + /* + * For RTSP, two translation entries are created, + * check if main db has space to accomodate two new entry + */ + free_main = free_main - 1; + if (PREDICT_FALSE(!free_main)) { + info->error = CNAT_MAIN_DB_LIMIT; + CNAT_SET_ICMP_MSG_INFO + in2out_drops_system_limit_reached ++; + CNAT_DEBUG_INSIDE_ERR(CNAT_MAIN_DB_LIMIT) + + return NULL; + } else { + rv = cnat_dynamic_port_alloc_rtsp_bulk(pm, + PORT_ALLOC_DIRECTED, + port_pair_type, + ki->k.k.port, + &my_index, + &(ko.k.k.ipv4), + &(ko.k.k.port), + cnat_static_port_range +#ifndef NO_BULK_LOGGING + , + udb, BULKSIZE_FROM_VRFMAP(my_vrfmap), + &nfv9_log_req +#endif + , &(my_vrfmap->rseed_ip) + ); + } + } + + + if (PREDICT_FALSE(rv != CNAT_SUCCESS)) { + info->error = rv; + CNAT_SET_ICMP_MSG_INFO + CNAT_DEBUG_INSIDE_ERR(rv) + in2out_drops_resource_depletion++; + log_port_alloc_error(rv, &(ki->k)); + return (NULL); + } + /* + * increment port in use for this user + */ + pthread_spin_lock(cnat_db_v2_main.user_db_lockp); + udb->ntranslations += 1; + pthread_spin_unlock(cnat_db_v2_main.user_db_lockp); + + } else { + /* + * first time allocate port for this user + */ + + /* + * Do not create entry if port limit is invalid + */ + + if (PREDICT_FALSE(!port_limit)) { + if (PREDICT_TRUE(port_type != PORT_TYPE_STATIC)) { + info->error = CNAT_OUT_LIMIT; + in2out_drops_port_limit_exceeded ++; + port_exceeded_msg_log(u_ki.k.k.ipv4, u_ki.k.k.vrf); + CNAT_SET_ICMP_MSG_INFO + CNAT_DEBUG_INSIDE_ERR(CNAT_OUT_LIMIT) + return (NULL); + } + } + + /* + * Check if main db has space for new entry + * Allowing a user db entry to be created if main db is not free + * will cause a port to be allocated to that user, which results in + * wastage of that port, hence the check is done here. + */ + h = pool_header(cnat_main_db); + free_main = vec_len(h->free_indices) - 1; + h = pool_header(cnat_user_db); + free_user = vec_len(h->free_indices) - 1; + + /* + * If either main_db or user_db does not have entries + * bail out, with appropriate error + */ + if (PREDICT_FALSE(!(free_main && free_user))) { + u32 log_error; + if(free_main) { + info->error = CNAT_USER_DB_LIMIT; + log_error = CNAT_USER_DB_LIMIT_ERROR; + } else { + info->error = CNAT_MAIN_DB_LIMIT; + log_error = CNAT_MAIN_DB_LIMIT_ERROR; + } + in2out_drops_system_limit_reached ++; + CNAT_SET_ICMP_MSG_INFO + CNAT_DEBUG_INSIDE_ERR(info->error) + spp_printf(log_error, 0, 0); + return NULL; + } + + if (PREDICT_FALSE(port_type == PORT_TYPE_STATIC)) { + rv = cnat_static_port_alloc_v2_bulk(pm, + PORT_ALLOC_ANY, + port_pair_type, + ki->k.k.ipv4, + ki->k.k.port, + &my_index, + &(ko.k.k.ipv4), + &(ko.k.k.port), + cnat_static_port_range +#ifndef NO_BULK_LOGGING + , + udb, BULKSIZE_FROM_VRFMAP(my_vrfmap), + &nfv9_log_req +#endif + , my_vrfmap->ip_n_to_1 + ); + + } else if (PREDICT_TRUE(port_type != PORT_TYPE_RTSP)) { + rv = cnat_dynamic_port_alloc_v2_bulk(pm, + PORT_ALLOC_ANY, + port_pair_type, + &my_index, + &(ko.k.k.ipv4), + &(ko.k.k.port), + cnat_static_port_range +#ifndef NO_BULK_LOGGING + , NULL, BULKSIZE_FROM_VRFMAP(my_vrfmap), + &nfv9_log_req +#endif + , my_vrfmap->ip_n_to_1, + &(my_vrfmap->rseed_ip) + ); + } else { + /* + * For RTSP, two translation entries are created, + * check if main db has space to accomodate two new entry + */ + free_main = free_main - 1; + if (PREDICT_FALSE(!free_main)) { + info->error = CNAT_MAIN_DB_LIMIT; + CNAT_SET_ICMP_MSG_INFO + in2out_drops_system_limit_reached ++; + CNAT_DEBUG_INSIDE_ERR(CNAT_MAIN_DB_LIMIT) + + return NULL; + } else { + + rv = cnat_dynamic_port_alloc_rtsp_bulk(pm, + PORT_ALLOC_ANY, + port_pair_type, + ki->k.k.port, + &my_index, + &(ko.k.k.ipv4), + &(ko.k.k.port), + cnat_static_port_range +#ifndef NO_BULK_LOGGING + , NULL, BULKSIZE_FROM_VRFMAP(my_vrfmap), + &nfv9_log_req +#endif + , &(my_vrfmap->rseed_ip) + ); + /* TODO: Add the port pair flag here */ + } + } + + + + if (PREDICT_FALSE(rv != CNAT_SUCCESS)) { + info->error = rv; + in2out_drops_resource_depletion ++; + CNAT_SET_ICMP_MSG_INFO + CNAT_DEBUG_INSIDE_ERR(rv) + log_port_alloc_error(rv, &(ki->k)); + return (NULL); + } + /* + * create entry in user db + */ + udb = cnat_user_db_create_entry(&u_ki, my_index); + NAT44_COMMON_STATS.num_subscribers++; + my_pm = pm + my_index; + if(PREDICT_TRUE(my_pm->private_ip_users_count < PORTS_PER_ADDR)) { + my_pm->private_ip_users_count++; +#ifdef DEBUG_PRINTF_IP_N_TO_1_ENABLED + PLATFORM_DEBUG_PRINT("\n cnat_get_main_db_entry_v2 " + "dynamic alloc private_ip_users_count = %d", + my_pm->private_ip_users_count); +#endif + } else { + PLATFORM_DEBUG_PRINT("\n ERROR: private_ip_users_count has " + "reached MAX PORTS_PER_ADDR"); + } +#ifndef NO_BULK_LOGGING + if(PREDICT_TRUE(udb && (BULK_ALLOC_NOT_ATTEMPTED != nfv9_log_req))) { + cnat_update_bulk_range_cache(udb, ko.k.k.port, + BULKSIZE_FROM_VRFMAP(my_vrfmap)); + } +#endif /* #ifndef NO_BULK_LOGGING */ + + } + + /* + * step 3: + * outside port is allocated for this src vrf/src ip addr + * 1)create a new entry in main db + * 2)setup cnat_out2in_hash key + * 3)setup cnat_in2out_hash key + */ + db = cnat_create_main_db_entry_and_hash(ki, &ko, udb); + + translation_create_count ++; +#ifdef DSLITE_DEF + db->dslite_nat44_inst_id = NAT44_RESERVED_INST_ID; +#endif + db->vrfmap_index = my_vrfmap - cnat_map_by_vrf; + + /* + * don't forget logging + * logging API is unconditional, + * logging configuration check is done inside the inline function + */ + + db->dst_ipv4 = dest_info->k.ipv4; + db->dst_port = dest_info->k.port; + if(PREDICT_TRUE(db->dst_ipv4 || db->dst_port)) { + db->nsessions++; + } + + if(PREDICT_FALSE(nfv9_log_req != CACHE_ALLOC_NO_LOG_REQUIRED)) { + if(PREDICT_FALSE(my_vrfmap->nf_logging_policy == SESSION_LOG_ENABLE)) { + /* do not log for static entries.. we will log when traffic flows */ + if(PREDICT_TRUE(db->dst_ipv4 || db->dst_port)) { + cnat_nfv9_nat44_log_session_create(db, 0, my_vrfmap); + } + } else { + cnat_nfv9_log_mapping_create(db, my_vrfmap +#ifndef NO_BULK_LOGGING + , nfv9_log_req +#endif + ); + } + if(PREDICT_TRUE((my_vrfmap->syslog_logging_policy != SESSION_LOG_ENABLE) || + (db->dst_ipv4 || db->dst_port))) { + cnat_syslog_nat44_mapping_create(db, my_vrfmap, 0 +#ifndef NO_BULK_LOGGING + , nfv9_log_req +#endif + ); + } + } + if (PREDICT_FALSE(port_pair_type == PORT_PAIR)) { + cnat_main_db_entry_t *db2 = 0; + cnat_db_key_bucket_t new_ki = *ki; + u64 a, b, c; + + new_ki.k.k.port += 1; + ko.k.k.port += 1; + + CNAT_V4_GET_HASH(new_ki.k.key64, new_ki.bucket, + CNAT_MAIN_HASH_MASK); + + db2 = cnat_create_main_db_entry_and_hash(&new_ki, &ko, udb); + + translation_create_count ++; +#ifdef DSLITE_DEF + db2->dslite_nat44_inst_id = NAT44_RESERVED_INST_ID; +#endif + db2->vrfmap_index = my_vrfmap - cnat_map_by_vrf; + db2->entry_expires = cnat_current_time; + db2->flags |= CNAT_DB_FLAG_ALG_ENTRY; + pthread_spin_lock(cnat_db_v2_main.user_db_lockp); + udb->ntranslations += 1; + pthread_spin_unlock(cnat_db_v2_main.user_db_lockp); + db2->dst_ipv4 = dest_info->k.ipv4; + db2->dst_port = dest_info->k.port; + db2->nsessions = 0; /* For ALG db, set sessions to 0 - CSCuf78420 */ + + if(PREDICT_FALSE(nfv9_log_req != CACHE_ALLOC_NO_LOG_REQUIRED)) { + if(PREDICT_FALSE(my_vrfmap->nf_logging_policy == SESSION_LOG_ENABLE)) { + /* do not log for static entries.. we will log when traffic flows */ + if(PREDICT_TRUE(db2->dst_ipv4 || db2->dst_port)) { + cnat_nfv9_nat44_log_session_create(db2, 0, my_vrfmap); + } + } else { + cnat_nfv9_log_mapping_create(db2, my_vrfmap +#ifndef NO_BULK_LOGGING + , nfv9_log_req +#endif + ); + } + if(PREDICT_TRUE((my_vrfmap->syslog_logging_policy != SESSION_LOG_ENABLE) || + (db2->dst_ipv4 || db2->dst_port))) { + cnat_syslog_nat44_mapping_create(db2, my_vrfmap, 0 +#ifndef NO_BULK_LOGGING + , nfv9_log_req +#endif + ); + } + } + } + + return db; +} + +cnat_main_db_entry_t* +cnat_get_main_db_entry_v2(cnat_db_key_bucket_t *ki, + port_pair_t port_pair_type, + port_type_t port_type, + cnat_gen_icmp_info *info, + cnat_key_t *dest_info) +{ + + cnat_main_db_entry_t *db; + pthread_spin_lock(cnat_db_v2_main.main_db_lockp); + db = _cnat_get_main_db_entry_v2(ki, port_pair_type, + port_type, info, dest_info); + pthread_spin_unlock(cnat_db_v2_main.main_db_lockp); + return db; +} + +/* + * this function is called from config handler only + * to allocate a static port based db entry + * + * the actual mapped address and port are already specified + */ +cnat_main_db_entry_t* +cnat_create_static_main_db_entry_v2 (cnat_db_key_bucket_t *ki, + cnat_db_key_bucket_t *ko, + cnat_vrfmap_t *my_vrfmap, + cnat_gen_icmp_info *info) +{ + u16 protocol; + u32 head; + cnat_errno_t rv; + cnat_db_key_bucket_t u_ki; + u32 my_index, free_main, free_user; + cnat_portmap_v2_t *pm =0; + cnat_portmap_v2_t *my_pm =0; + cnat_user_db_entry_t *udb = 0; + cnat_main_db_entry_t *db = 0; + pool_header_t *h; +#ifndef NO_BULK_LOGGING + int nfv9_log_req = BULK_ALLOC_NOT_ATTEMPTED; +#endif + + /* UNUSED. Therefore not ported to be multi-thread friendly */ + ASSERT(0); + + /* + * need to try lookup again because + * second pkt may come here before the entry is created + * by receiving first pkt due to high line rate. + */ + info->gen_icmp_msg = CNAT_NO_ICMP_MSG; + info->error = CNAT_SUCCESS; + db = cnat_main_db_lookup_entry(ki); + + /* + * If we already have an entry with this inside address, port + * check delete the entry and proceed further. This should + * If yes, something is terribly wrong. Bail out + */ + if (PREDICT_FALSE(db)) { + + if (db->flags & CNAT_DB_FLAG_STATIC_PORT) { + + if ((db->out2in_key.k.ipv4 == ko->k.k.ipv4) && + (db->out2in_key.k.port == ko->k.k.port) && + (db->out2in_key.k.vrf == ko->k.k.vrf)) { + +#ifdef DEBUG_PRINTF_ENABLED + printf("Same Static Port Exists ki 0x%16llx ko 0x%16llx", + ki->k, ko->k); +#endif + /* + * We have already programmed this, return + */ + return (db); + } + + /* + * We already have a static port with different mapping + * Return an error for this case. + */ + info->error = CNAT_ERR_PARSER; + +#ifdef DEBUG_PRINTF_ENABLED + printf("Static Port Existing and Diff ki 0x%16llx ko 0x%16llx", + ki, db->out2in_key); +#endif + { + u32 arr[] = {STAT_PORT_CONFIG_IN_USE, (ki->k.k.vrf & CNAT_VRF_MASK), + ki->k.k.ipv4, ki->k.k.port, (ki->k.k.vrf & CNAT_PRO_MASK) }; + spp_printf(CNAT_CONFIG_ERROR, 5, arr); + } + return (db); + } + +#ifdef DEBUG_PRINTF_ENABLED + printf("Deleting Dynamic entry ki 0x%16llx ko 0x%16llx", + ki, db->out2in_key); +#endif + + /* + * If for some reason we have dynamic entries, just delete them + * and proceed. + */ + cnat_delete_main_db_entry_v2(db); + + db = NULL; + } + + protocol = ki->k.k.vrf & CNAT_PRO_MASK; + u_ki.k.k.vrf = ki->k.k.vrf & CNAT_VRF_MASK; + u_ki.k.k.ipv4 = ki->k.k.ipv4; + u_ki.k.k.port = 0; + + pm = my_vrfmap->portmap_list; + + /* + * check if src vrf, src ip addr is already + * in the user db + * if yes, use PORT_ALLOC_DIRECTED + * if no, use PORT_ALLOC_ANY since it is first time + */ + udb = cnat_user_db_lookup_entry(&u_ki); + if (PREDICT_TRUE(udb)) { + /* + * check if main db has space to accomodate new entry + */ + h = pool_header(cnat_main_db); + + free_main = vec_len(h->free_indices) - 1; + if (PREDICT_FALSE(!free_main)) { + info->error = CNAT_MAIN_DB_LIMIT; + CNAT_SET_ICMP_MSG_INFO + in2out_drops_system_limit_reached ++; + CNAT_DEBUG_INSIDE_ERR(CNAT_MAIN_DB_LIMIT) +#ifdef UT_TEST_CODE + printf("Limit reached : OLD USER"); +#endif + spp_printf(CNAT_MAIN_DB_LIMIT_ERROR, 0, 0); + return NULL; + } + + /* + * allocate port, from existing mapping + */ + my_index = udb->portmap_index; + my_pm = pm + my_index; + /* It is quite possible that we hit the scenario of CSCtj17774. + * Delete all the main db entries and add the ipv4 address sent by + * CGN-MA as Static port alloc any + */ + + if (PREDICT_FALSE(my_pm->ipv4_address != ko->k.k.ipv4)) { + if (PREDICT_FALSE(global_debug_flag && CNAT_DEBUG_GLOBAL_ALL)) { + printf("Delete Main db entry and check for" + " ipv4 address sanity pm add = 0x%x ip add = 0x%x\n", + my_pm->ipv4_address, ko->k.k.ipv4); + } + do { + /* udb is not NULL when we begin with for sure */ + head = udb->translation_list_head_index; + db = cnat_main_db + head; + cnat_delete_main_db_entry_v2(db); + } while (!pool_is_free(cnat_user_db, udb)); + + rv = cnat_mapped_static_port_alloc_v2_bulk (pm, + PORT_ALLOC_ANY, &my_index, ko->k.k.ipv4, ko->k.k.port, + udb, BULKSIZE_FROM_VRFMAP(my_vrfmap), &nfv9_log_req, + my_vrfmap->ip_n_to_1); + + if (PREDICT_FALSE(rv != CNAT_SUCCESS)) { + info->error = rv; + in2out_drops_resource_depletion ++; + CNAT_SET_ICMP_MSG_INFO + CNAT_DEBUG_INSIDE_ERR(rv) + return (NULL); + } + /* + * create entry in user db + */ + udb = cnat_user_db_create_entry(&u_ki, my_index); + my_pm = pm + my_index; + if(PREDICT_TRUE(my_pm->private_ip_users_count < PORTS_PER_ADDR)) { + my_pm->private_ip_users_count++; +#ifdef DEBUG_PRINTF_IP_N_TO_1_ENABLED + PLATFORM_DEBUG_PRINT("\n cnat_create_static_main_db_entry_v2 " + "static del n alloc private_ip_users_count = " + "%d",my_pm->private_ip_users_count); +#endif + } else { + PLATFORM_DEBUG_PRINT("\n ERROR: private_ip_users_count has " + "reached MAX PORTS_PER_ADDR"); + } + NAT44_COMMON_STATS.num_subscribers++; +#ifndef NO_BULK_LOGGING + cnat_update_bulk_range_cache(udb, ko->k.k.port, + BULKSIZE_FROM_VRFMAP(my_vrfmap)); +#endif /* #ifndef NO_BULK_LOGGING */ + } else { + + rv = cnat_mapped_static_port_alloc_v2_bulk (pm, + PORT_ALLOC_DIRECTED, &my_index, ko->k.k.ipv4, ko->k.k.port, + udb, BULKSIZE_FROM_VRFMAP(my_vrfmap), &nfv9_log_req, + my_vrfmap->ip_n_to_1); + + if (PREDICT_FALSE(rv != CNAT_SUCCESS)) { + info->error = rv; + CNAT_SET_ICMP_MSG_INFO + CNAT_DEBUG_INSIDE_ERR(rv) + log_port_alloc_error(rv, &(ki->k)); + return (NULL); + } + + /* + * increment port in use for this user + */ + udb->ntranslations += 1; + } + } else { + if (PREDICT_FALSE(global_debug_flag && CNAT_DEBUG_GLOBAL_ALL)) { + printf ("Static port alloc any\n"); + } + /* + * first time allocate port for this user + */ + + /* + * Check if main db has space for new entry + * Allowing a user db entry to be created if main db is not free + * will cause a port to be allocated to that user, which results in + * wastage of that port, hence the check is done here. + */ + h = pool_header(cnat_main_db); + free_main = vec_len(h->free_indices) - 1; + h = pool_header(cnat_user_db); + free_user = vec_len(h->free_indices) - 1; + + /* + * If either main_db or user_db does not have entries + * bail out, with appropriate error + */ + if (PREDICT_FALSE(!(free_main && free_user))) { + u32 log_error; + if(free_main) { + info->error = CNAT_USER_DB_LIMIT; + log_error = CNAT_USER_DB_LIMIT_ERROR; + } else { + info->error = CNAT_MAIN_DB_LIMIT; + log_error = CNAT_MAIN_DB_LIMIT_ERROR; + } + in2out_drops_system_limit_reached ++; + CNAT_SET_ICMP_MSG_INFO + CNAT_DEBUG_INSIDE_ERR(info->error) + spp_printf(log_error, 0, 0); + return NULL; + } + + rv = cnat_mapped_static_port_alloc_v2_bulk (pm, + PORT_ALLOC_ANY, &my_index, ko->k.k.ipv4, ko->k.k.port, + udb, BULKSIZE_FROM_VRFMAP(my_vrfmap), &nfv9_log_req, + my_vrfmap->ip_n_to_1); + + if (PREDICT_FALSE(rv != CNAT_SUCCESS)) { + info->error = rv; + in2out_drops_resource_depletion ++; + CNAT_SET_ICMP_MSG_INFO + CNAT_DEBUG_INSIDE_ERR(rv) + log_port_alloc_error(rv, &(ki->k)); + return (NULL); + } + /* + * create entry in user db + */ + udb = cnat_user_db_create_entry(&u_ki, my_index); + my_pm = pm + my_index; + if(PREDICT_TRUE(my_pm->private_ip_users_count < PORTS_PER_ADDR)) { + my_pm->private_ip_users_count++; +#ifdef DEBUG_PRINTF_IP_N_TO_1_ENABLED + PLATFORM_DEBUG_PRINT("\n cnat_create_static_main_db_entry_v2 " + "static alloc private_ip_users_count = %d", + my_pm->private_ip_users_count); +#endif + } else { + PLATFORM_DEBUG_PRINT("\n ERROR: private_ip_users_count has " + "reached MAX PORTS_PER_ADDR"); + } + NAT44_COMMON_STATS.num_subscribers++; +#ifndef NO_BULK_LOGGING + cnat_update_bulk_range_cache(udb, ko->k.k.port, + BULKSIZE_FROM_VRFMAP(my_vrfmap)); +#endif /* #ifndef NO_BULK_LOGGING */ + } + + /* + * step 3: + * outside port is allocated for this src vrf/src ip addr + * 1)create a new entry in main db + * 2)setup cnat_out2in_hash key + * 3)setup cnat_in2out_hash key + */ + db = cnat_create_main_db_entry_and_hash(ki, ko, udb); + + translation_create_count ++; + db->vrfmap_index = my_vrfmap - cnat_map_by_vrf; + + /* + * don't forget logging + * logging API is unconditional, + * logging configuration check is done inside the inline function + */ + + if(PREDICT_FALSE(nfv9_log_req != CACHE_ALLOC_NO_LOG_REQUIRED)) { + /* if session logging is enabled .. do not log as there is no + * traffic yet + */ + if(PREDICT_FALSE(my_vrfmap->nf_logging_policy != SESSION_LOG_ENABLE)) { + cnat_nfv9_log_mapping_create(db, my_vrfmap +#ifndef NO_BULK_LOGGING + , nfv9_log_req +#endif + ); + } + if(PREDICT_FALSE(my_vrfmap->syslog_logging_policy != SESSION_LOG_ENABLE)) { + cnat_syslog_nat44_mapping_create(db, my_vrfmap, 0 +#ifndef NO_BULK_LOGGING + , nfv9_log_req +#endif + ); + } + } + + return db; +} + + +cnat_main_db_entry_t* +dslite_main_db_lookup_entry(dslite_db_key_bucket_t *ki); + +cnat_user_db_entry_t* +dslite_user_db_lookup_entry(dslite_db_key_bucket_t *uki); + +cnat_user_db_entry_t* +dslite_user_db_create_entry(dslite_db_key_bucket_t *uki, u32 portmap_index); + +cnat_main_db_entry_t* +dslite_create_main_db_entry_and_hash(dslite_db_key_bucket_t *ki, + cnat_db_key_bucket_t *ko, + cnat_user_db_entry_t *udb); + +#ifdef TOBE_PORTED +/* + * this function is called from config handler only + * to allocate a static port based db entry + * + * the actual mapped address and port are already specified + */ +cnat_main_db_entry_t* +dslite_create_static_main_db_entry_v2 (dslite_db_key_bucket_t *ki, + cnat_db_key_bucket_t *ko, + dslite_table_entry_t *dslite_entry_ptr, + cnat_gen_icmp_info *info) +{ + u16 protocol; + u32 head; + cnat_errno_t rv; + dslite_db_key_bucket_t u_ki; + u32 my_index, free_main, free_user; + cnat_portmap_v2_t *pm =0; + cnat_portmap_v2_t *my_pm =0; + cnat_user_db_entry_t *udb = 0; + cnat_main_db_entry_t *db = 0; + pool_header_t *h; + u16 dslite_id = dslite_entry_ptr->dslite_id; +#ifndef NO_BULK_LOGGING + int nfv9_log_req = BULK_ALLOC_NOT_ATTEMPTED; +#endif + cnat_vrfmap_t *my_vrfmap =0; + u16 my_vrfmap_index; + + /* UNUSED. Therefore not ported to be multi-thread friendly */ + ASSERT(0); + /* + * need to try lookup again because + * second pkt may come here before the entry is created + * by receiving first pkt due to high line rate. + */ + info->gen_icmp_msg = CNAT_NO_ICMP_MSG; + info->error = CNAT_SUCCESS; + db = dslite_main_db_lookup_entry(ki); + + /* + * If we already have an entry with this inside address, port + * check delete the entry and proceed further. This should + * If yes, something is terribly wrong. Bail out + */ + if (PREDICT_FALSE(db)) { + + if (db->flags & CNAT_DB_FLAG_STATIC_PORT) { + + if ((db->out2in_key.k.ipv4 == ko->k.k.ipv4) && + (db->out2in_key.k.port == ko->k.k.port) && + (db->out2in_key.k.vrf == ko->k.k.vrf)) { + +#ifdef DEBUG_PRINTF_ENABLED + printf("Same Static Port Exists ki 0x%16llx ko 0x%16llx", + ki->k, ko->k); +#endif + /* + * We have already programmed this, return + */ + return (db); + } + + /* + * We already have a static port with different mapping + * Return an error for this case. + */ + info->error = CNAT_ERR_PARSER; + +#ifdef DEBUG_PRINTF_ENABLED + printf("Static Port Existing and Diff ki 0x%16llx ko 0x%16llx", + ki, db->out2in_key); +#endif + { + u32 arr[] = {STAT_PORT_CONFIG_IN_USE, (ki->dk.ipv4_key.k.vrf & CNAT_VRF_MASK), + ki->dk.ipv4_key.k.ipv4, ki->dk.ipv4_key.k.port, (ki->dk.ipv4_key.k.vrf & CNAT_PRO_MASK) }; + spp_printf(CNAT_CONFIG_ERROR, 5, arr); + } + return (db); + } + +#ifdef DEBUG_PRINTF_ENABLED + printf("Deleting Dynamic entry ki 0x%16llx ko 0x%16llx", + ki, db->out2in_key); +#endif + + /* + * If for some reason we have dynamic entries, just delete them + * and proceed. + */ + cnat_delete_main_db_entry_v2(db); + + db = NULL; + } + + + protocol = ki->dk.ipv4_key.k.vrf & CNAT_PRO_MASK; + u_ki.dk.ipv4_key.k.vrf = ki->dk.ipv4_key.k.vrf & CNAT_VRF_MASK; + u_ki.dk.ipv4_key.k.ipv4 = ki->dk.ipv4_key.k.ipv4; + u_ki.dk.ipv4_key.k.port = 0; + u_ki.dk.ipv6[0] = ki->dk.ipv6[0]; + u_ki.dk.ipv6[1] = ki->dk.ipv6[1]; + u_ki.dk.ipv6[2] = ki->dk.ipv6[2]; + u_ki.dk.ipv6[3] = ki->dk.ipv6[3]; + + my_vrfmap_index = vrf_map_array[u_ki.dk.ipv4_key.k.vrf]; + my_vrfmap = cnat_map_by_vrf + my_vrfmap_index; + + pm = dslite_entry_ptr->portmap_list; + + /* + * check if src vrf, src ip addr is already + * in the user db + * if yes, use PORT_ALLOC_DIRECTED + * if no, use PORT_ALLOC_ANY since it is first time + */ + udb = dslite_user_db_lookup_entry(&u_ki); + if (PREDICT_TRUE(udb)) { + /* + * check if main db has space to accomodate new entry + */ + h = pool_header(cnat_main_db); + + free_main = vec_len(h->free_indices) - 1; + if (PREDICT_FALSE(!free_main)) { + info->error = CNAT_MAIN_DB_LIMIT; + nat44_dslite_common_stats[dslite_id].in2out_drops_port_limit_exceeded ++; + DSLITE_DEBUG_INSIDE_ERR(CNAT_MAIN_DB_LIMIT) +#ifdef UT_TEST_CODE + printf("Limit reached : OLD USER"); +#endif + spp_printf(CNAT_MAIN_DB_LIMIT_ERROR, 0, 0); + return NULL; + } + + /* + * allocate port, from existing mapping + */ + my_index = udb->portmap_index; + my_pm = pm + my_index; + /* It is quite possible that we hit the scenario of CSCtj17774. + * Delete all the main db entries and add the ipv4 address sent by + * CGN-MA as Static port alloc any + */ + + if (PREDICT_FALSE(my_pm->ipv4_address != ko->k.k.ipv4)) { + if (PREDICT_FALSE(global_debug_flag && CNAT_DEBUG_GLOBAL_ALL)) { + printf("Delete Main db entry and check for" + " ipv4 address sanity pm add = 0x%x ip add = 0x%x\n", + my_pm->ipv4_address, ko->k.k.ipv4); + } + do { + /* udb is not NULL when we begin with for sure */ + head = udb->translation_list_head_index; + db = cnat_main_db + head; + cnat_delete_main_db_entry_v2(db); + } while (!pool_is_free(cnat_user_db, udb)); + + rv = cnat_mapped_static_port_alloc_v2_bulk (pm, + PORT_ALLOC_ANY, &my_index, ko->k.k.ipv4, ko->k.k.port, + udb, BULKSIZE_FROM_VRFMAP(dslite_entry_ptr), &nfv9_log_req, + my_vrfmap->ip_n_to_1); + + if (PREDICT_FALSE(rv != CNAT_SUCCESS)) { + info->error = rv; + nat44_dslite_common_stats[dslite_id].in2out_drops_port_limit_exceeded ++; + DSLITE_DEBUG_INSIDE_ERR(rv) + return (NULL); + } + /* + * create entry in user db + */ + udb = dslite_user_db_create_entry(&u_ki, my_index); + nat44_dslite_common_stats[dslite_id].num_subscribers++; +#ifndef NO_BULK_LOGGING + if(PREDICT_FALSE(udb && (BULK_ALLOC_NOT_ATTEMPTED != nfv9_log_req))) { + cnat_update_bulk_range_cache(udb, ko->k.k.port, + BULKSIZE_FROM_VRFMAP(dslite_entry_ptr)); + } +#endif /* #ifndef NO_BULK_LOGGING */ + } else { + + rv = cnat_mapped_static_port_alloc_v2_bulk (pm, + PORT_ALLOC_DIRECTED, &my_index, ko->k.k.ipv4, ko->k.k.port, + udb, BULKSIZE_FROM_VRFMAP(dslite_entry_ptr), &nfv9_log_req, + my_vrfmap->ip_n_to_1); + + if (PREDICT_FALSE(rv != CNAT_SUCCESS)) { + info->error = rv; + DSLITE_DEBUG_INSIDE_ERR(rv) + log_port_alloc_error(rv, &(ki->dk.ipv4_key)); + return (NULL); + } + + /* + * increment port in use for this user + */ + udb->ntranslations += 1; + } + } else { + if (PREDICT_FALSE(global_debug_flag && CNAT_DEBUG_GLOBAL_ALL)) { + printf ("Static port alloc any\n"); + } + /* + * first time allocate port for this user + */ + + /* + * Check if main db has space for new entry + * Allowing a user db entry to be created if main db is not free + * will cause a port to be allocated to that user, which results in + * wastage of that port, hence the check is done here. + */ + h = pool_header(cnat_main_db); + free_main = vec_len(h->free_indices) - 1; + h = pool_header(cnat_user_db); + free_user = vec_len(h->free_indices) - 1; + + /* + * If either main_db or user_db does not have entries + * bail out, with appropriate error + */ + if (PREDICT_FALSE(!(free_main && free_user))) { + u32 log_error; + if(free_main) { + info->error = CNAT_USER_DB_LIMIT; + log_error = CNAT_USER_DB_LIMIT_ERROR; + } else { + info->error = CNAT_MAIN_DB_LIMIT; + log_error = CNAT_MAIN_DB_LIMIT_ERROR; + } + nat44_dslite_common_stats[dslite_id].in2out_drops_port_limit_exceeded ++; + DSLITE_DEBUG_INSIDE_ERR(info->error) + spp_printf(log_error, 0, 0); + return NULL; + } + + rv = cnat_mapped_static_port_alloc_v2_bulk (pm, + PORT_ALLOC_ANY, &my_index, ko->k.k.ipv4, ko->k.k.port, + udb, BULKSIZE_FROM_VRFMAP(dslite_entry_ptr), &nfv9_log_req, + my_vrfmap->ip_n_to_1); + + if (PREDICT_FALSE(rv != CNAT_SUCCESS)) { + info->error = rv; + nat44_dslite_common_stats[dslite_id].in2out_drops_port_limit_exceeded ++; + DSLITE_DEBUG_INSIDE_ERR(rv) + log_port_alloc_error(rv, &(ki->dk.ipv4_key)); + return (NULL); + } + /* + * create entry in user db + */ + udb = dslite_user_db_create_entry(&u_ki, my_index); + nat44_dslite_common_stats[dslite_id].num_subscribers++; +#ifndef NO_BULK_LOGGING + if(PREDICT_FALSE(udb && (BULK_ALLOC_NOT_ATTEMPTED != nfv9_log_req))) { + cnat_update_bulk_range_cache(udb, ko->k.k.port, + BULKSIZE_FROM_VRFMAP(dslite_entry_ptr)); + } +#endif /* #ifndef NO_BULK_LOGGING */ + } + + /* + * step 3: + * outside port is allocated for this src vrf/src ip addr + * 1)create a new entry in main db + * 2)setup cnat_out2in_hash key + * 3)setup cnat_in2out_hash key + */ + db = dslite_create_main_db_entry_and_hash(ki, ko, udb); + db->dslite_nat44_inst_id = dslite_id; + nat44_dslite_common_stats[dslite_id].active_translations++; + dslite_translation_create_count++; + + /* + * don't forget logging + * logging API is unconditional, + * logging configuration check is done inside the inline function + */ +#if 0 /* TBD - NEED TO DECIDE ON LOGGING */ + if(PREDICT_FALSE(nfv9_log_req != CACHE_ALLOC_NO_LOG_REQUIRED)) { + /* if session logging is enabled .. do not log as there is no + * traffic yet + */ +#endif /* #if 0 - this has to be removed later */ + + return db; +} +#endif /* TOBE_PORTED */ + + +/* Per port/ip timeout related routines */ +static +u32 cnat_timeout_db_hash_lookup (cnat_key_t t_key) +{ + cnat_key_t key; + u64 a, b, c; + u32 index; + cnat_timeout_db_entry_t *db; + + key.k.ipv4 = t_key.k.ipv4; + key.k.port = t_key.k.port; + key.k.vrf = t_key.k.vrf; + + CNAT_V4_GET_HASH(key.key64, + index, CNAT_TIMEOUT_HASH_MASK) + + + index = cnat_timeout_hash[index].next; + + if (PREDICT_FALSE(index == EMPTY)) + return EMPTY; + + do { + db = cnat_timeout_db + index; + if (PREDICT_TRUE((db->t_key.timeout_key.key64 & CNAT_TIMEOUT_FULL_MASK) + == (key.key64 & CNAT_TIMEOUT_FULL_MASK))) + break; + index = db->t_hash.next; + } while (index != EMPTY); + + return index; +} + +/* Pass db_type as MAIN_DB_TYPE if you are passing + * cnat_main_db_entry_t * casted as void * for db + * else pass db_type as SESSION_DB_TYPE + */ +u16 +query_and_update_db_timeout(void *db, u8 db_type) +{ + cnat_key_t t_search_key; + u32 index; + cnat_timeout_db_entry_t *timeout_db_entry; + pool_header_t *h; + u32 free; + + cnat_main_db_entry_t *mdb = NULL; + cnat_session_entry_t *sdb = NULL; + + if(PREDICT_TRUE(db_type == MAIN_DB_TYPE)) { + mdb = (cnat_main_db_entry_t *)db; + } else if(db_type == SESSION_DB_TYPE) { + sdb = (cnat_session_entry_t *)db; + } else { + return 0; + } + + h = pool_header(cnat_timeout_db); + free = vec_len(h->free_indices) - 1; + + if(free == CNAT_TIMEOUT_HASH_SIZE) { + /* No timeout db configured */ + return 0; + } + + /* First search for ip/port pair */ + if(PREDICT_TRUE(db_type == MAIN_DB_TYPE)) { + t_search_key.k.ipv4 = mdb->dst_ipv4; + t_search_key.k.port = mdb->dst_port; + t_search_key.k.vrf = mdb->in2out_key.k.vrf; + } else { + t_search_key.k.ipv4 = sdb->v4_dest_key.k.ipv4; + t_search_key.k.port = sdb->v4_dest_key.k.port; + t_search_key.k.vrf = sdb->v4_dest_key.k.vrf; + } + + index = cnat_timeout_db_hash_lookup(t_search_key); + + if(index == EMPTY) { + /* Search for port map */ + t_search_key.k.ipv4 = 0; + + index = cnat_timeout_db_hash_lookup(t_search_key); + + if(index == EMPTY) { + /* Search for ip only map */ + if(PREDICT_TRUE(db_type == MAIN_DB_TYPE)) { + t_search_key.k.ipv4 = mdb->dst_ipv4; + } else { + t_search_key.k.ipv4 = sdb->v4_dest_key.k.ipv4; + } + t_search_key.k.port = 0; + + index = cnat_timeout_db_hash_lookup(t_search_key); + if(index != EMPTY) { +#ifdef DEBUG_PRINTF_ENABLED + printf("%s: ip only map sucess\n","query_and_update_db_timeout"); +#endif + } + } else { +#ifdef DEBUG_PRINTF_ENABLED + printf("%s: port only map sucess\n", "query_and_update_db_timeout"); +#endif + } + + } else { +#ifdef DEBUG_PRINTF_ENABLED + printf("%s: ip port map sucess\n","query_and_update_db_timeout"); +#endif + + } + + if(index == EMPTY) { + /* No match found, clear timeout */ + if(PREDICT_TRUE(db_type == MAIN_DB_TYPE)) { + mdb->timeout = 0; + } else { + sdb->timeout = 0; + } +#ifdef DEBUG_PRINTF_ENABLED + printf("%s: No match\n","query_and_update_db_timeout"); +#endif + } else { + /* Match found, update timeout */ + timeout_db_entry = cnat_timeout_db + index; + if(PREDICT_TRUE(db_type == MAIN_DB_TYPE)) { + mdb->timeout = timeout_db_entry->t_key.timeout_value; + } else { + sdb->timeout = timeout_db_entry->t_key.timeout_value; + } + return timeout_db_entry->t_key.timeout_value; + } + return 0; +} + + + +static +void cnat_timeout_db_hash_add (cnat_timeout_db_entry_t *t_entry) +{ + cnat_key_t key; + u64 a, b, c; + u32 index, bucket; + cnat_key_t t_key = t_entry->t_key.timeout_key; + + key.k.ipv4 = t_key.k.ipv4; + key.k.port = t_key.k.port; + key.k.vrf = t_key.k.vrf; + + CNAT_V4_GET_HASH(key.key64, + bucket, CNAT_TIMEOUT_HASH_MASK) + + + index = cnat_timeout_hash[bucket].next; + + /* Add this db entry to the head of the bucket chain */ + t_entry->t_hash.next = index; + cnat_timeout_hash[bucket].next = t_entry - cnat_timeout_db; +} + + + +u16 +cnat_timeout_db_create (cnat_timeout_t t_entry) +{ + cnat_timeout_db_entry_t *db; + cnat_key_t t_key = t_entry.timeout_key; + u32 db_index; + + pool_header_t *h; + u32 free; + + /* UNUSED. Therefore not ported to be multi-thread friendly */ + ASSERT(0); + + db_index = cnat_timeout_db_hash_lookup(t_key); + + if(db_index != EMPTY) { + /* Entry already exists. Check if it is replay or update */ + db = cnat_timeout_db + db_index; + db->t_key.timeout_value = t_entry.timeout_value; + return CNAT_SUCCESS; + } + + h = pool_header(cnat_timeout_db); + free = vec_len(h->free_indices) - 1; + + if(free == 0) { + return CNAT_OUT_LIMIT; + } + + + pool_get(cnat_timeout_db, db); + ASSERT(db); + + memset(db, 0, sizeof(*db)); + + db_index = db - cnat_timeout_db; + + db->t_key.timeout_key.k.ipv4 = t_key.k.ipv4; + db->t_key.timeout_key.k.port = t_key.k.port; + db->t_key.timeout_key.k.vrf = t_key.k.vrf; + db->t_key.timeout_value = t_entry.timeout_value; + + + cnat_timeout_db_hash_add(db); + return CNAT_SUCCESS; +} + +void cnat_timeout_db_delete(cnat_key_t t_key) +{ + cnat_key_t key; + u64 a, b, c; + u32 index, bucket; + cnat_timeout_db_entry_t *this, *prev; + + /* UNUSED. Therefore not ported to be multi-thread friendly */ + ASSERT(0); + + key.k.ipv4 = t_key.k.ipv4; + key.k.port = t_key.k.port; + key.k.vrf = t_key.k.vrf; + + + CNAT_V4_GET_HASH(key.key64, + bucket, CNAT_TIMEOUT_HASH_MASK) + + + index = cnat_timeout_hash[bucket].next; + + if(index == EMPTY) return; + + prev = 0; + do { + this = cnat_timeout_db + index; + if (PREDICT_TRUE( + (this->t_key.timeout_key.key64 & CNAT_TIMEOUT_FULL_MASK) == + (key.key64 & CNAT_TIMEOUT_FULL_MASK))) { + if (prev == 0) { + cnat_timeout_hash[bucket].next = this->t_hash.next; + goto found; + } else { + prev->t_hash.next = this->t_hash.next; + goto found; + } + } + + prev = this; + index = this->t_hash.next; + } while (index != EMPTY); + + if(index == EMPTY) return; + + found: + pool_put(cnat_timeout_db, this); + +} + +void cnat_session_db_hash_delete (cnat_session_entry_t *ep) +{ + u32 a, b, c; + u32 index, bucket; + cnat_session_entry_t *this, *prev; + + CNAT_V4_GET_SESSION_HASH(ep->main_db_index, ep->v4_dest_key.k.ipv4, + ep->v4_dest_key.k.port, ep->v4_dest_key.k.vrf, bucket, + CNAT_SESSION_HASH_MASK) + + + index = cnat_session_hash[bucket].next; + + ASSERT(index != EMPTY); + + prev = 0; + do { + this = cnat_session_db + index; + if (PREDICT_TRUE(this == ep)) { + if (prev == 0) { + cnat_session_hash[bucket].next = + ep->cnat_session_hash.next; + return; + } else { + prev->cnat_session_hash.next = + ep->cnat_session_hash.next; + return; + } + } + prev = this; + index = this->cnat_session_hash.next; + } while (index != EMPTY); + + ASSERT(0); + +} + +cnat_session_entry_t * +cnat_session_db_edm_lookup_entry(cnat_key_t *ko,u32 session_head_index, + u32 main_db_index) +{ + u32 index; + cnat_session_entry_t *db; + + + index = session_head_index; + if (PREDICT_TRUE(index == EMPTY)) { + return (NULL); + } + + do { + db = cnat_session_db + index; + if(PREDICT_TRUE((db->main_db_index == main_db_index) && + (db->v4_dest_key.k.vrf == ko->k.vrf) && + (db->v4_dest_key.k.ipv4 == ko->k.ipv4))) { + + return db; + } + index = db->cnat_session_hash.next; + } while (index != EMPTY); + + return (NULL); +} + + + +cnat_session_entry_t * +cnat_session_db_lookup_entry(cnat_key_t *ko,u32 main_db_index) +{ + u32 a, b, c; + u32 index, bucket; + cnat_session_entry_t *db; + + CNAT_V4_GET_SESSION_HASH(main_db_index, ko->k.ipv4, ko->k.port, + ko->k.vrf, bucket, CNAT_SESSION_HASH_MASK) + + + index = cnat_session_hash[bucket].next; + if (PREDICT_TRUE(index == EMPTY)) { + return (NULL); + } + + do { + db = cnat_session_db + index; + if(PREDICT_TRUE((db->main_db_index == main_db_index) && + (db->v4_dest_key.k.vrf == ko->k.vrf) && + (db->v4_dest_key.k.port == ko->k.port) && + (db->v4_dest_key.k.ipv4 == ko->k.ipv4))) { + + return db; + } + index = db->cnat_session_hash.next; + } while (index != EMPTY); + + return (NULL); +} + +cnat_session_entry_t * +cnat_create_session_db_entry(cnat_key_t *ko, + cnat_main_db_entry_t *bdb, u8 log) +{ + u32 a, b, c; + u32 db_index, bucket_out; + cnat_session_entry_t *db = NULL; + pool_header_t *h; + u32 free_session; + u16 instance; + + db = cnat_session_db_lookup_entry(ko, bdb - cnat_main_db); + if (PREDICT_FALSE(db != NULL)) { + /*printf("Create Session - Entry already Exists\n");*/ + return db; + } + + h = pool_header(cnat_session_db); + free_session = vec_len(h->free_indices) - 1; + + if (bdb->flags & CNAT_DB_DSLITE_FLAG) { + instance = bdb->dslite_nat44_inst_id; + } else { + instance = NAT44_RESERVED_INST_ID; + } + + if (PREDICT_FALSE(!free_session)) { + nat44_dslite_common_stats[instance].drops_sessiondb_limit_exceeded++; + return NULL; + } + + if( PREDICT_FALSE(bdb->nsessions == CNAT_MAX_SESSIONS_PER_BIB)) { + /* printf("Create Session - Max sessions per BIB reached\n"); */ + return NULL; + } + + pthread_spin_lock(cnat_db_v2_main.session_db_lockp); + pool_get(cnat_session_db, db); + memset(db, 0, sizeof(*db)); + + db_index = db - cnat_session_db; + db->v4_dest_key.k.port = ko->k.port; + db->v4_dest_key.k.ipv4 = ko->k.ipv4; + db->v4_dest_key.k.vrf = ko->k.vrf; + + db->main_list.next = db_index; + db->main_list.prev = db_index; + db->main_db_index = bdb - cnat_main_db; + + db->tcp_seq_num = 0; + db->ack_no = 0; + db->window = 0; + + if(PREDICT_FALSE(log)) { + bdb->nsessions++; + query_and_update_db_timeout(db, SESSION_DB_TYPE); + } + + if (PREDICT_FALSE(bdb->nsessions == 1)) { + /* + * first port for this src vrf/src ip addr + */ + bdb->session_head_index = db_index; + } else { + index_dlist_addtail(bdb->session_head_index, + (u8 *)cnat_session_db, sizeof(cnat_session_db[0]), + STRUCT_OFFSET_OF(cnat_session_entry_t, main_list), + db_index); + } + + /* + * setup o2i hash key + */ + CNAT_V4_GET_SESSION_HASH(db->main_db_index, ko->k.ipv4, ko->k.port, + ko->k.vrf, bucket_out, CNAT_SESSION_HASH_MASK) + + + db->cnat_session_hash.next = + cnat_session_hash[bucket_out].next; + cnat_session_hash[bucket_out].next = db_index; + + + if(PREDICT_FALSE(log)) { + if (bdb->flags & CNAT_DB_DSLITE_FLAG) { + cnat_session_log_ds_lite_mapping_create(bdb, + (dslite_table_db_ptr + instance),db); + } else { + cnat_vrfmap_t *my_vrfmap = cnat_map_by_vrf + bdb->vrfmap_index; + cnat_session_log_nat44_mapping_create(bdb, db, my_vrfmap); + } + } + + /* Need to set entry_expires here, as we need to override 0 check for + newly established sessions */ + db->entry_expires = cnat_current_time; + nat44_dslite_common_stats[instance].sessions++; + pthread_spin_unlock(cnat_db_v2_main.session_db_lockp); + return db; +} + +void +cnat_dest_update_main2session(cnat_main_db_entry_t *mdb, + cnat_session_entry_t *sdb) +{ + + sdb->flags = mdb->flags; + sdb->timeout = mdb->timeout; + sdb->entry_expires = mdb->entry_expires; + sdb->alg.delta = mdb->alg.delta; + sdb->tcp_seq_num = mdb->proto_data.seq_pcp.tcp_seq_num; + + /* Reset Main db values to 0 */ + /* Reset only session specific flags */ + mdb->flags &= ~(CNAT_DB_FLAG_TCP_ACTIVE | CNAT_DB_FLAG_UDP_ACTIVE + | CNAT_DB_FLAG_ALG_ENTRY | CNAT_DB_FLAG_ALG_CTRL_FLOW); + mdb->timeout = 0; + mdb->entry_expires = 0; + mdb->alg.delta = 0; + if(PREDICT_FALSE(!((mdb->flags & CNAT_DB_FLAG_PPTP_TUNNEL_ACTIVE) || + (mdb->flags & CNAT_DB_FLAG_PPTP_TUNNEL_INIT)))) { + mdb->proto_data.seq_pcp.tcp_seq_num = 0; + } + + mdb->dst_ipv4 = 0; + mdb->dst_port = 0; +} + + +void +cnat_dest_update_session2main(cnat_main_db_entry_t *mdb, + cnat_session_entry_t *sdb) +{ + + u16 flags = sdb->flags & (CNAT_DB_FLAG_TCP_ACTIVE | + CNAT_DB_FLAG_UDP_ACTIVE | CNAT_DB_FLAG_ALG_ENTRY | + CNAT_DB_FLAG_ALG_CTRL_FLOW); + mdb->flags |= flags; + mdb->timeout = sdb->timeout; + mdb->entry_expires = sdb->entry_expires; + mdb->alg.delta = sdb->alg.delta; + if(PREDICT_FALSE(!((mdb->flags & CNAT_DB_FLAG_PPTP_TUNNEL_ACTIVE) || + (mdb->flags & CNAT_DB_FLAG_PPTP_TUNNEL_INIT)))) { + mdb->proto_data.seq_pcp.tcp_seq_num = sdb->tcp_seq_num; + } + mdb->dst_ipv4 = sdb->v4_dest_key.k.ipv4; + mdb->dst_port = sdb->v4_dest_key.k.port; +} + +static void +_cnat_delete_session_db_entry (cnat_session_entry_t *ep, u8 log) +{ + u32 session_db_index; + u32 bdb_len; + cnat_main_db_entry_t *be =0; + cnat_session_entry_t *sdb_last = NULL; + u16 instance; + + if (PREDICT_FALSE(ep->flags & CNAT_DB_NAT64_FLAG) != 0) { + /* Preventive check - Not a NAT44 entry */ + return; + } + + pool_header_t *h = pool_header(cnat_main_db); + + /* Validate .. just in case we are trying to delete a non existing one */ + bdb_len = vec_len(cnat_main_db); + + /* In case of invalid user just return, deleting only main db + * is not a good idea, since some valid user db entry might be pointing + * to that main db and hence leave the dbs in a inconsistent state + */ + if (PREDICT_FALSE((ep->main_db_index >= bdb_len) || + (clib_bitmap_get(h->free_bitmap, ep->main_db_index)))) { +#ifdef DEBUG_PRINTF_ENABLED + printf("invalid/unused user index in db %d\n", ep->main_db_index); +#endif + spp_printf(CNAT_INV_UNUSED_USR_INDEX, 1, (u32 *) &(ep->main_db_index)); + return; + } + + be = cnat_main_db + ep->main_db_index; + + session_db_index = ep - cnat_session_db; + + be->session_head_index = index_dlist_remelem ( + be->session_head_index, (u8 *)cnat_session_db, + sizeof (cnat_session_db[0]), + STRUCT_OFFSET_OF(cnat_session_entry_t, main_list), + session_db_index); + + if (be->flags & CNAT_DB_DSLITE_FLAG) { + instance = be->dslite_nat44_inst_id; + } else { + instance = NAT44_RESERVED_INST_ID; + } + + if(PREDICT_TRUE(log)) { + if (be->flags & CNAT_DB_DSLITE_FLAG) { + cnat_session_log_ds_lite_mapping_delete(be, + (dslite_table_db_ptr + instance),ep); + } else { + cnat_vrfmap_t *my_vrfmap = cnat_map_by_vrf + be->vrfmap_index; + cnat_session_log_nat44_mapping_delete(be, ep, my_vrfmap); + } + be->nsessions--; + } + + if (PREDICT_FALSE(be->nsessions == 1 && log)) { + /* There is only 1 session left + * Copy the info back to main db and release the last + * existing session + */ + + sdb_last = cnat_session_db + be->session_head_index; + ASSERT(sdb_last != NULL); + + cnat_dest_update_session2main(be, sdb_last); + _cnat_delete_session_db_entry(sdb_last, FALSE); + } + + /* Remove from session DB hashes */ + cnat_session_db_hash_delete(ep); + nat44_dslite_common_stats[instance].sessions--; + + pool_put(cnat_session_db, ep); +} + +void cnat_delete_session_db_entry (cnat_session_entry_t *ep, u8 log) +{ + pthread_spin_lock(cnat_db_v2_main.session_db_lockp); + _cnat_delete_session_db_entry (ep, log); + pthread_spin_unlock(cnat_db_v2_main.session_db_lockp); +} + +cnat_main_db_entry_t* +dslite_main_db_lookup_entry(dslite_db_key_bucket_t *ki) +{ + u64 a, b, c; + u32 index; + cnat_main_db_entry_t *db; + cnat_user_db_entry_t *userdb; + + DSLITE_V6_GET_HASH((&(ki->dk)), + ki->bucket, + CNAT_MAIN_HASH_MASK); + + DSLITE_PRINTF(1,"MDBLU hash..%u\n", ki->bucket); + + index = cnat_in2out_hash[ki->bucket].next; + if (PREDICT_TRUE(index == EMPTY)) { + DSLITE_PRINTF(1,"MDBLU index MT..\n"); + return (NULL); + } + + do { +/* We can add a flag here to indicate if the db entry is for nat44 or + * dslite. If the db entry is for nat44 then we can simply move to the + * one. + */ + db = cnat_main_db + index; + userdb = cnat_user_db + db->user_index; + if (PREDICT_TRUE(db->in2out_key.key64 == ki->dk.ipv4_key.key64) + && userdb->ipv6[0] == ki->dk.ipv6[0] + && userdb->ipv6[1] == ki->dk.ipv6[1] + && userdb->ipv6[2] == ki->dk.ipv6[2] + && userdb->ipv6[3] == ki->dk.ipv6[3]) { + DSLITE_PRINTF(1,"MDBLU success..%u\n", index); + return db; + } + index = db->in2out_hash.next; + } while (index != EMPTY); + + DSLITE_PRINTF(1,"MDBLU Entry does not exist..\n"); + return (NULL); +} + +cnat_user_db_entry_t* +dslite_user_db_lookup_entry(dslite_db_key_bucket_t *uki) +{ + u64 a, b, c; + u32 index; + cnat_user_db_entry_t *udb=NULL; + + DSLITE_V6_GET_HASH((&(uki->dk)), + uki->bucket, + CNAT_USER_HASH_MASK) + + DSLITE_PRINTF(1,"UDBLU hash..%u\n", uki->bucket); + + /* now: index in user vector */ + index = cnat_user_hash[uki->bucket].next; + if (PREDICT_TRUE(index != EMPTY)) { + DSLITE_PRINTF(1,"UDBLU hash table entry not MT..\n"); + do { + udb = cnat_user_db + index; + if (PREDICT_FALSE(udb->key.key64 == uki->dk.ipv4_key.key64) + && udb->ipv6[0] == uki->dk.ipv6[0] + && udb->ipv6[1] == uki->dk.ipv6[1] + && udb->ipv6[2] == uki->dk.ipv6[2] + && udb->ipv6[3] == uki->dk.ipv6[3]) { + DSLITE_PRINTF(1,"UDBLU success..%u\n", index); + return udb; + } + index = udb->user_hash.next; + } while (index != EMPTY); + } + DSLITE_PRINTF(1,"UDBLU Entry doesnt exist..\n"); + return (NULL); +} + +cnat_user_db_entry_t* +dslite_user_db_create_entry(dslite_db_key_bucket_t *uki, + u32 portmap_index) +{ + cnat_user_db_entry_t *udb = NULL; + + /* UNUSED. Therefore not ported to be multi-thread friendly */ + ASSERT(0); + + pool_get(cnat_user_db, udb); + memset(udb, 0, sizeof(*udb)); + + udb->ntranslations = 1; + udb->portmap_index = portmap_index; +// udb->key.key64 = uki->k.key64; + + udb->key.key64 = uki->dk.ipv4_key.key64; + udb->ipv6[0] = uki->dk.ipv6[0]; + udb->ipv6[1] = uki->dk.ipv6[1]; + udb->ipv6[2] = uki->dk.ipv6[2]; + udb->ipv6[3] = uki->dk.ipv6[3]; + + udb->flags |= CNAT_USER_DB_DSLITE_FLAG; + /* Add this user to the head of the bucket chain */ + udb->user_hash.next = + cnat_user_hash[uki->bucket].next; + cnat_user_hash[uki->bucket].next = udb - cnat_user_db; + +#ifndef NO_BULK_LOGGING + INIT_BULK_CACHE(udb) +#endif /* NO_BULK_LOGGING */ + + return udb; +} + +#ifndef TOBE_PORTED +cnat_main_db_entry_t* +dslite_create_main_db_entry_and_hash(dslite_db_key_bucket_t *ki, + cnat_db_key_bucket_t *ko, + cnat_user_db_entry_t *udb) +{ + return 0; +} +#else +cnat_main_db_entry_t* +dslite_create_main_db_entry_and_hash(dslite_db_key_bucket_t *ki, + cnat_db_key_bucket_t *ko, + cnat_user_db_entry_t *udb) +{ + u64 a, b, c; + u32 db_index; + cnat_main_db_entry_t *db = NULL; + + /* UNUSED. Therefore not ported to be multi-thread friendly */ + ASSERT(0); + + pool_get(cnat_main_db, db); + memset(db, 0, sizeof(*db)); + + db_index = db - cnat_main_db; + db->in2out_key.k.ipv4 = ki->dk.ipv4_key.k.ipv4; + db->in2out_key.k.port = ki->dk.ipv4_key.k.port; + db->in2out_key.k.vrf = ki->dk.ipv4_key.k.vrf; + db->out2in_key.k.ipv4 = ko->k.k.ipv4; + db->out2in_key.k.port = ko->k.k.port; + db->out2in_key.k.vrf = ko->k.k.vrf; + + db->user_ports.next = db_index; + db->user_ports.prev = db_index; + db->user_index = udb - cnat_user_db; + //db->portmap_index = udb->portmap_index; + db->flags |= CNAT_DB_DSLITE_FLAG; + + if (PREDICT_FALSE(udb->ntranslations == 1)) { + /* + * first port for this src vrf/src ip addr + */ + udb->translation_list_head_index = db_index; + DSLITE_PRINTF(1,"First translation of this user..\n"); + } else { + index_dlist_addtail(udb->translation_list_head_index, + (u8 *)cnat_main_db, sizeof(cnat_main_db[0]), + STRUCT_OFFSET_OF(cnat_main_db_entry_t, user_ports), + db_index); + } + + /* + * setup o2i hash key + */ + CNAT_V4_GET_HASH(ko->k.key64, + ko->bucket, + CNAT_MAIN_HASH_MASK) + db->out2in_hash.next = cnat_out2in_hash[ko->bucket].next; + cnat_out2in_hash[ko->bucket].next = db_index; + /* + * setup i2o hash key, bucket is already calculate + */ + db->in2out_hash.next = cnat_in2out_hash[ki->bucket].next; + cnat_in2out_hash[ki->bucket].next = db_index; + + DSLITE_PRINTF(1,"Create main db and hash..%u %u %u %u %x\n", + ki->bucket, ko->bucket, + db_index, db->user_index, ko->k.key64); + +#if DEBUG > 1 + printf("\nMy_Instance_Number %d: Bucket %d, Db_Index %d", + my_instance_number, ki->bucket, db_index); + printf("\nInside (VRF 0x%x, IP 0x%x, PORT 0x%x)", + db->in2out_key.k.vrf, db->in2out_key.k.ipv4, db->in2out_key.k.port); + printf("\nOutside (VRF 0x%x, IP 0x%x, PORT 0x%x)", + db->out2in_key.k.vrf, db->out2in_key.k.ipv4, db->out2in_key.k.port); + printf("\nUser Index %d, IP 0x%x", + db->user_index, udb->key.k.ipv4); +#endif + + //nat44_dslite_common_stats[DSLITE_COMMON_STATS].active_translations++; + + return db; +} + +static inline void handle_dslite_port_exceeded_logging( + cnat_user_db_entry_t *udb, + dslite_key_t * key, + dslite_table_entry_t *dslite_entry_ptr) +{ + + if(PREDICT_TRUE(udb->flags & CNAT_USER_DB_PORT_LIMIT_EXCEEDED)) { + /* Already logged ..*/ + return; + } + + /* else, set the flag and call the log API */ + udb->flags = udb->flags | CNAT_USER_DB_PORT_LIMIT_EXCEEDED; + cnat_log_ds_lite_port_limit_exceeded(key, dslite_entry_ptr); + return; +} +#endif + +void handle_cnat_port_exceeded_logging( + cnat_user_db_entry_t *udb, + cnat_key_t * key, + cnat_vrfmap_t *vrfmap) +{ + + if(PREDICT_TRUE(udb->flags & CNAT_USER_DB_PORT_LIMIT_EXCEEDED)) { + /* Already logged ..*/ + return; + } + + /* else, set the flag and call the log API */ + udb->flags = udb->flags | CNAT_USER_DB_PORT_LIMIT_EXCEEDED; + cnat_log_nat44_port_limit_exceeded(key,vrfmap); + return; +} + +#ifndef TOBE_PORTED +cnat_main_db_entry_t* +dslite_get_main_db_entry_v2(dslite_db_key_bucket_t *ki, + port_pair_t port_pair_type, + port_type_t port_type, + cnat_gen_icmp_info *info, + dslite_table_entry_t *dslite_entry_ptr, + cnat_key_t *dest_info) +{ + return 0; +} +#else +/* + * this function is called by exception node + * when lookup is fialed in i2o node + * + * if reash per user port limit, + * set user_db_entry pointer, and error == CNAT_OUT_LIMIT + */ +cnat_main_db_entry_t* +dslite_get_main_db_entry_v2(dslite_db_key_bucket_t *ki, + port_pair_t port_pair_type, + port_type_t port_type, + cnat_gen_icmp_info *info, + dslite_table_entry_t *dslite_entry_ptr, + cnat_key_t *dest_info) +{ + u16 protocol; + cnat_errno_t rv; + dslite_db_key_bucket_t u_ki; + cnat_db_key_bucket_t ko; + u32 my_index, free_main, free_user; + u32 current_timestamp; + cnat_vrfmap_t *my_vrfmap =0; + u16 my_vrfmap_index; + cnat_portmap_v2_t *pm =0; + cnat_user_db_entry_t *udb = 0; + cnat_main_db_entry_t *db = 0; + pool_header_t *h; + u16 dslite_id = dslite_entry_ptr->dslite_id; + +#ifndef NO_BULK_LOGGING + int nfv9_log_req = BULK_ALLOC_NOT_ATTEMPTED; +#endif + + /* UNUSED. Therefore not ported to be multi-thread friendly */ + ASSERT(0); + + /* + * need to try lookup again because + * second pkt may come here before the entry is created + * by receiving first pkt due to high line rate. + */ + info->gen_icmp_msg = CNAT_NO_ICMP_MSG; + info->error = CNAT_SUCCESS; + db = dslite_main_db_lookup_entry(ki); + if (PREDICT_TRUE(db)) { + /* what if the source is talking to a + * new dest now? We will have to handle this case and + * take care of - creating session db and logging + */ + if(PREDICT_FALSE((!dest_info->k.ipv4) && (!dest_info->k.port))) { + return db; /* if dest_info is null don't create session */ + } + + if(PREDICT_TRUE((db->dst_ipv4 == dest_info->k.ipv4) && + (db->dst_port == dest_info->k.port))) { + return db; + } + dest_info->k.vrf = db->in2out_key.k.vrf; + /* Src is indeed talking to a different dest */ + cnat_session_entry_t *session_db2 = NULL; + if(PREDICT_TRUE(db->nsessions == 1)) { + session_db2 = cnat_handle_1to2_session(db, dest_info); + if(PREDICT_TRUE(session_db2 != NULL)) { + CNAT_DB_TIMEOUT_RST(session_db2); + return db; + } else { + info->error = CNAT_ERR_NO_SESSION_DB; + return NULL; + } + } else if(PREDICT_FALSE(db->nsessions == 0)) { + /* Should be static entry.. should never happen + */ + if(PREDICT_TRUE(dest_info->k.ipv4 != 0)) { + cnat_add_dest_n_log(db, dest_info); + } + return db; + } else { + /* The src has already created multiple sessions.. very rare + */ + session_db2 = cnat_create_session_db_entry(dest_info, + db, TRUE); + if(PREDICT_TRUE(session_db2 != NULL)) { + CNAT_DB_TIMEOUT_RST(session_db2); + return db; + } else { + info->error = CNAT_ERR_NO_SESSION_DB; + return NULL; + } + } + + } + + /* + * step 1. check if outside vrf is configured or not + * and Find the set of portmaps for the outside vrf + * insider vrf is one to one mappted to outside vrf + * key is vrf and ip only + * ki.k.k.vrf has protocol bits, mask out + */ + protocol = ki->dk.ipv4_key.k.vrf & CNAT_PRO_MASK; + u_ki.dk.ipv4_key.k.vrf = ki->dk.ipv4_key.k.vrf & CNAT_VRF_MASK; +#ifdef DSLITE_USER_IPV4 + u_ki.dk.ipv4_key.k.ipv4 = ki->dk.ipv4_key.k.ipv4; +#else + /* + * Inside ipv4 address should be masked, if port limit + * need to be done at B4 element level. + */ + u_ki.dk.ipv4_key.k.ipv4 = 0; +#endif + u_ki.dk.ipv4_key.k.port = 0; + + u_ki.dk.ipv6[0] = ki->dk.ipv6[0]; + u_ki.dk.ipv6[1] = ki->dk.ipv6[1]; + u_ki.dk.ipv6[2] = ki->dk.ipv6[2]; + u_ki.dk.ipv6[3] = ki->dk.ipv6[3]; + + my_vrfmap_index = vrf_map_array[u_ki.dk.ipv4_key.k.vrf]; + my_vrfmap = cnat_map_by_vrf + my_vrfmap_index; +/* Checking if the inst entry is active or not is done much earlier + */ +#if 0 + my_vrfmap_index = vrf_map_array[u_ki.k.k.vrf]; + my_vrfmap = cnat_map_by_vrf + my_vrfmap_index; + my_vrfmap_entry_found = ((my_vrfmap_index != VRF_MAP_ENTRY_EMPTY) && + (my_vrfmap->status == S_RUN) && + (my_vrfmap->i_vrf == u_ki.k.k.vrf)); + + if (PREDICT_FALSE(!my_vrfmap_entry_found)) { + u32 arr[] = {ki->k.k.vrf, ki->k.k.ipv4, ki->k.k.port}; + if ((my_vrfmap_index == VRF_MAP_ENTRY_EMPTY) || + (my_vrfmap->i_vrf == u_ki.k.k.vrf)) { + info->error = CNAT_NO_CONFIG; + CNAT_DEBUG_INSIDE_ERR(CNAT_NO_CONFIG) + spp_printf(CNAT_NO_CONFIG_ERROR, 3, arr); + } else { + info->error = CNAT_NO_VRF_RUN; + CNAT_DEBUG_INSIDE_ERR(CNAT_NO_VRF_RUN) + spp_printf(CNAT_NO_VRF_RUN_ERROR, 3, arr); + } + + return (NULL); + } +#endif +/* + dslite_inst_ptr = dslite_nat44_config_table[dslite_inst_id]; +*/ + pm = dslite_entry_ptr->portmap_list; + //pm = my_vrfmap->portmap_list; + + /* + * set o2i key with protocl bits + */ + ko.k.k.vrf = dslite_entry_ptr->o_vrf | protocol; + //ko.k.k.vrf = my_vrfmap->o_vrf | protocol; + + /* + * step 2. check if src vrf, src ip addr is alreay + * in the user db + * if yes, use PORT_ALLOC_DIRECTED + * if no, use PORT_ALLOC_ANY since it is first time + */ + udb = dslite_user_db_lookup_entry(&u_ki); + if (PREDICT_TRUE(udb)) { + /* + * not first time allocate port for this user + * check limit + */ + if (PREDICT_FALSE(udb->ntranslations >= + dslite_entry_ptr->cnat_main_db_max_ports_per_user)) { + //cnat_main_db_max_ports_per_user)) + + /* Check for the port type here. If we are getting + * a STATIC PORT, allow the config. + */ + if (PREDICT_TRUE(port_type != PORT_TYPE_STATIC)) { + info->error = CNAT_OUT_LIMIT; + DSLITE_DEBUG_INSIDE_ERR(CNAT_OUT_LIMIT) + port_exceeded_msg_log(u_ki.dk.ipv4_key.k.ipv4, u_ki.dk.ipv4_key.k.vrf); + nat44_dslite_common_stats[dslite_id].in2out_drops_port_limit_exceeded ++; + u_ki.dk.ipv4_key.k.vrf = ki->dk.ipv4_key.k.vrf; + u_ki.dk.ipv4_key.k.port = ki->dk.ipv4_key.k.port; + handle_dslite_port_exceeded_logging(udb, &u_ki.dk, dslite_entry_ptr); + return (NULL); + } + } + + CHECK_CLEAR_PORT_LIMIT_EXCEED_FLAG(udb, + dslite_entry_ptr->cnat_main_db_max_ports_per_user) + + /* + * check if main db has space to accomodate new entry + */ + h = pool_header(cnat_main_db); + + free_main = vec_len(h->free_indices) - 1; + if (PREDICT_FALSE(!free_main)) { + info->error = CNAT_MAIN_DB_LIMIT; + nat44_dslite_common_stats[dslite_id].in2out_drops_system_limit_reached ++; + DSLITE_DEBUG_INSIDE_ERR(CNAT_MAIN_DB_LIMIT) + + current_timestamp = spp_trace_log_get_unix_time_in_seconds(); + if (PREDICT_FALSE((current_timestamp - last_log_timestamp) > + 1800)) { + spp_printf(CNAT_SESSION_THRESH_EXCEEDED, 0, NULL); + last_log_timestamp = current_timestamp; + } + +#ifdef UT_TEST_CODE + printf("Limit reached : OLD USER"); +#endif + return NULL; + } + + /* + * allocate port, from existing mapping + */ + my_index = udb->portmap_index; + + if (PREDICT_FALSE(port_type == PORT_TYPE_STATIC)) { + rv = cnat_static_port_alloc_v2_bulk(pm, + PORT_ALLOC_DIRECTED, + port_pair_type, + ki->dk.ipv4_key.k.ipv4, + ki->dk.ipv4_key.k.port, + &my_index, + &(ko.k.k.ipv4), + &(ko.k.k.port), + STAT_PORT_RANGE_FROM_INST_PTR(dslite_entry_ptr) +#ifndef NO_BULK_LOGGING + , udb, + BULKSIZE_FROM_VRFMAP(dslite_entry_ptr), + &nfv9_log_req +#endif + , my_vrfmap->ip_n_to_1 + ); + } else if (PREDICT_TRUE(port_type != PORT_TYPE_RTSP) ) { + + rv = cnat_dynamic_port_alloc_v2_bulk(pm, + PORT_ALLOC_DIRECTED, + port_pair_type, + &my_index, + &(ko.k.k.ipv4), + &(ko.k.k.port), + STAT_PORT_RANGE_FROM_INST_PTR(dslite_entry_ptr) +#ifndef NO_BULK_LOGGING + , udb, + BULKSIZE_FROM_VRFMAP(dslite_entry_ptr), + &nfv9_log_req +#endif + , 0, + &(dslite_entry_ptr->rseed_ip) + ); + DSLITE_PRINTF(1,"D_PORT_ALLOC %x %u\n", ko.k.k.ipv4, ko.k.k.port); + } else { + /* + * For RTSP, two translation entries are created, + * check if main db has space to accomodate two new entry + */ + free_main = free_main - 1; + + if (PREDICT_FALSE(!free_main)) { + info->error = CNAT_MAIN_DB_LIMIT; + nat44_dslite_common_stats[dslite_id].in2out_drops_system_limit_reached ++; + DSLITE_DEBUG_INSIDE_ERR(CNAT_MAIN_DB_LIMIT) + + return NULL; + } else { + + rv = cnat_dynamic_port_alloc_rtsp_bulk(pm, + PORT_ALLOC_DIRECTED, + port_pair_type, + ki->dk.ipv4_key.k.port, + &my_index, + &(ko.k.k.ipv4), + &(ko.k.k.port), + STAT_PORT_RANGE_FROM_INST_PTR(dslite_entry_ptr) +#ifndef NO_BULK_LOGGING + , udb, + BULKSIZE_FROM_VRFMAP(dslite_entry_ptr), + &nfv9_log_req +#endif + , &(dslite_entry_ptr->rseed_ip) + ); + } + } + + if (PREDICT_FALSE(rv != CNAT_SUCCESS)) { + DSLITE_PRINTF(1,"D_PORT_ALLOC port alloc error\n"); + info->error = rv; + DSLITE_DEBUG_INSIDE_ERR(rv) + nat44_dslite_common_stats[dslite_id].in2out_drops_resource_depletion ++; + log_port_alloc_error(rv, &(ki->dk.ipv4_key)); + return (NULL); + } + /* + * increment port in use for this user + */ + udb->ntranslations += 1; + } else { + /* + * first time allocate port for this user + */ + + /* + * Do not create entry if port limit is invalid + */ + if (PREDICT_FALSE(!(dslite_entry_ptr->cnat_main_db_max_ports_per_user))) { + if (PREDICT_TRUE(port_type != PORT_TYPE_STATIC)) { + info->error = CNAT_OUT_LIMIT; + nat44_dslite_common_stats[dslite_id].in2out_drops_port_limit_exceeded ++; + port_exceeded_msg_log(u_ki.dk.ipv4_key.k.ipv4, u_ki.dk.ipv4_key.k.vrf); + DSLITE_DEBUG_INSIDE_ERR(CNAT_OUT_LIMIT) + return (NULL); + } + } + + /* + * Check if main db has space for new entry + * Allowing a user db entry to be created if main db is not free + * will cause a port to be allocated to that user, which results in + * wastage of that port, hence the check is done here. + */ + h = pool_header(cnat_main_db); + free_main = vec_len(h->free_indices) - 1; + + h = pool_header(cnat_user_db); + free_user = vec_len(h->free_indices) - 1; + + /* + * If either main_db or user_db does not have entries + * bail out, with appropriate error + */ + if (PREDICT_FALSE(!(free_main && free_user))) { + u32 log_error; + if(free_main) { + info->error = CNAT_USER_DB_LIMIT; + log_error = CNAT_USER_DB_LIMIT_ERROR; + } else { + info->error = CNAT_MAIN_DB_LIMIT; + log_error = CNAT_MAIN_DB_LIMIT_ERROR; + } + nat44_dslite_common_stats[dslite_id].in2out_drops_system_limit_reached ++; + DSLITE_DEBUG_INSIDE_ERR(info->error) + spp_printf(log_error, 0, 0); + return NULL; + } + + if (PREDICT_FALSE(port_type == PORT_TYPE_STATIC)) { + rv = cnat_static_port_alloc_v2_bulk(pm, + PORT_ALLOC_ANY, + port_pair_type, + ki->dk.ipv4_key.k.ipv4, + ki->dk.ipv4_key.k.port, + &my_index, + &(ko.k.k.ipv4), + &(ko.k.k.port), + STAT_PORT_RANGE_FROM_INST_PTR(dslite_entry_ptr) +#ifndef NO_BULK_LOGGING + , NULL, + BULKSIZE_FROM_VRFMAP(dslite_entry_ptr), + &nfv9_log_req +#endif + , my_vrfmap->ip_n_to_1 + + ); + } else if (PREDICT_TRUE(port_type != PORT_TYPE_RTSP)) { + rv = cnat_dynamic_port_alloc_v2_bulk(pm, + PORT_ALLOC_ANY, + port_pair_type, + &my_index, + &(ko.k.k.ipv4), + &(ko.k.k.port), + STAT_PORT_RANGE_FROM_INST_PTR(dslite_entry_ptr) +#ifndef NO_BULK_LOGGING + , NULL, + BULKSIZE_FROM_VRFMAP(dslite_entry_ptr), + &nfv9_log_req +#endif + , 0, + &(dslite_entry_ptr->rseed_ip) + ); + DSLITE_PRINTF(1,"NU:D PORT ALLOC..%x %u\n", ko.k.k.ipv4, + ko.k.k.port); + + } else { + /* + * For RTSP, two translation entries are created, + * check if main db has space to accomodate two new entry + */ + free_main = free_main - 1; + + if (PREDICT_FALSE(!free_main)) { + info->error = CNAT_MAIN_DB_LIMIT; + nat44_dslite_common_stats[dslite_id].in2out_drops_system_limit_reached ++; + DSLITE_DEBUG_INSIDE_ERR(CNAT_MAIN_DB_LIMIT) + + return NULL; + } else { + + rv = cnat_dynamic_port_alloc_rtsp_bulk(pm, + PORT_ALLOC_DIRECTED, + port_pair_type, + ki->dk.ipv4_key.k.port, + &my_index, + &(ko.k.k.ipv4), + &(ko.k.k.port), + STAT_PORT_RANGE_FROM_INST_PTR(dslite_entry_ptr) +#ifndef NO_BULK_LOGGING + , NULL, + BULKSIZE_FROM_VRFMAP(dslite_entry_ptr), + &nfv9_log_req +#endif + , &(dslite_entry_ptr->rseed_ip) + ); + /* TODO: Add the port pair flag here */ + } + } + + + + if (PREDICT_FALSE(rv != CNAT_SUCCESS)) { + DSLITE_PRINTF(1,"NU:D_PORT_ALLOC port alloc error\n"); + info->error = rv; + nat44_dslite_common_stats[dslite_id].in2out_drops_resource_depletion ++; + DSLITE_DEBUG_INSIDE_ERR(rv) + log_port_alloc_error(rv, &(ki->dk.ipv4_key)); + return (NULL); + } + /* + * create entry in user db + */ + udb = dslite_user_db_create_entry(&u_ki, my_index); + nat44_dslite_common_stats[dslite_id].num_subscribers++; + DSLITE_PRINTF(1,"UDB crete entry done..\n"); +#ifndef NO_BULK_LOGGING + if(PREDICT_TRUE(udb && (BULK_ALLOC_NOT_ATTEMPTED != nfv9_log_req))) { + cnat_update_bulk_range_cache(udb, ko.k.k.port, + BULKSIZE_FROM_VRFMAP(dslite_entry_ptr)); + } +#endif /* #ifndef NO_BULK_LOGGING */ + } + + /* + * step 3: + * outside port is allocated for this src vrf/src ip addr + * 1)create a new entry in main db + * 2)setup cnat_out2in_hash key + * 3)setup cnat_in2out_hash key + */ + db = dslite_create_main_db_entry_and_hash(ki, &ko, udb); + DSLITE_PRINTF(1,"dslite_create_main_db_entry_and_hash done..\n"); + //db->vrfmap_index = my_vrfmap - cnat_map_by_vrf; + db->dslite_nat44_inst_id = dslite_id; + nat44_dslite_common_stats[dslite_id].active_translations++; + if (PREDICT_FALSE(port_type == PORT_TYPE_STATIC)) { + nat44_dslite_common_stats[dslite_id].num_static_translations++; + } else { + nat44_dslite_common_stats[dslite_id].num_dynamic_translations++; + } + + dslite_translation_create_count++; + + db->dst_ipv4 = dest_info->k.ipv4; + db->dst_port = dest_info->k.port; + if(PREDICT_TRUE(db->dst_ipv4 || db->dst_port)) { + /* for static fwding, let the nsessions remain zero */ + db->nsessions++; + } + + /* + * don't forget logging + * logging API is unconditional, + * logging configuration check is done inside the inline function + */ + if(PREDICT_FALSE(nfv9_log_req != CACHE_ALLOC_NO_LOG_REQUIRED)) { + if(PREDICT_FALSE( dslite_entry_ptr->nf_logging_policy == + SESSION_LOG_ENABLE)) { + if(PREDICT_TRUE(db->dst_ipv4 || db->dst_port)) { + cnat_nfv9_ds_lite_log_session_create(db, + dslite_entry_ptr,NULL); + } + } else { + cnat_nfv9_ds_lite_mapping_create(db,dslite_entry_ptr +#ifndef NO_BULK_LOGGING + ,nfv9_log_req +#endif + ); + } + if(PREDICT_TRUE((dslite_entry_ptr->syslog_logging_policy != SESSION_LOG_ENABLE) || + (db->dst_ipv4 || db->dst_port))) { + cnat_syslog_ds_lite_mapping_create(db,dslite_entry_ptr,NULL +#ifndef NO_BULK_LOGGING + ,nfv9_log_req +#endif + ); + } + } + +#if 0 + if (PREDICT_FALSE(port_pair_type == PORT_PAIR)) { + cnat_main_db_entry_t *db2 = 0; + dslite_db_key_bucket_t new_ki = *ki; + u64 a, b, c; + + new_ki.k.k.port += 1; + ko.k.k.port += 1; + + CNAT_V4_GET_HASH(new_ki.k.key64, new_ki.bucket, + CNAT_MAIN_HASH_MASK); + + db2 = cnat_create_main_db_entry_and_hash(&new_ki, &ko, udb); + + translation_create_count ++; + db2->dslite_nat44_inst_id = dslite_id; + db2->entry_expires = cnat_current_time; + db2->flags |= CNAT_DB_FLAG_ALG_ENTRY; + udb->ntranslations += 1; +#ifndef NO_BULK_LOGGING + if(PREDICT_FALSE(nfv9_log_req == BULK_ALLOC_NOT_ATTEMPTED)) + cnat_nfv9_log_mapping_create(db2, my_vrfmap, nfv9_log_req); +#else + cnat_nfv9_log_mapping_create(db2, my_vrfmap); +#endif + } +#endif + return db; +} +#endif /* TOBE_PORTED */ + +#if 0 +/* TOBE_PORTED */ +uword +cnat_db_v2_node_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + return 0; +} +VLIB_REGISTER_NODE (cnat_db_v2_node) = { + .function = cnat_db_v2_node_fn, + .name = "vcgn-db-v2", + .vector_size = sizeof (u32), + .type = VLIB_NODE_TYPE_INTERNAL, + + .n_errors = ARRAY_LEN(cnat_db_v2_error_strings), + .error_strings = cnat_db_v2_error_strings, + + .n_next_nodes = CNAT_DB_V2_DROP, + + /* edit / add dispositions here */ + .next_nodes = { + [CNAT_DB_V2_DROP] = "error-drop", + }, +}; +#endif +void cnat_db_v2_init (void) +{ + + u32 i, n; + cnat_timeout_db_entry_t * tdb __attribute__((unused)); + + cgse_nat_db_entry_t *comb_db __attribute__((unused)); + cgse_nat_user_db_entry_t *comb_user __attribute__((unused)); + cgse_nat_session_db_entry_t *comb_session __attribute__((unused)); + + n = CNAT_DB_SIZE*1.15; /* add 15% LB margin */ + + /* + * We also make it multiple of NUM_BITS_IN_UWORD for better + * DB scanning algorithm + */ + if (n % NUM_BITS_IN_UWORD) + n += (NUM_BITS_IN_UWORD - (n % NUM_BITS_IN_UWORD)); + + pool_alloc(cgse_nat_db,n); + for(i=0; i< n; i++) { + pool_get(cgse_nat_db, comb_db); + } + + for(i=0; i< n; i++) { + pool_put(cgse_nat_db, cgse_nat_db + i); + } + + cnat_main_db = &cgse_nat_db->nat44_main_db; + + /* For Sessions */ + if(PLATFORM_DBL_SUPPORT) { + /* create session table for NAT44 and NAT64 itself */ + printf("DBL Support exist %d\n", PLATFORM_DBL_SUPPORT); + n = CNAT_SESSION_DB_SIZE * 1.15; /* add 15% LB margin */ + } else { + /* Create session table for NAT64 only */ + printf("DBL Support Not exist\n"); + n = NAT64_MAIN_DB_SIZE * 1.15; /* add 15% LB margin */ + } + + /* + * We also make it multiple of NUM_BITS_IN_UWORD for better + * DB scanning algorithm + */ + if (n % NUM_BITS_IN_UWORD) + n += (NUM_BITS_IN_UWORD - (n % NUM_BITS_IN_UWORD)); + + pool_alloc(cgse_session_db,n); + for(i=0; i< n; i++) { + pool_get(cgse_session_db, comb_session); + } + + for(i=0; i< n; i++) { + pool_put(cgse_session_db, cgse_session_db + i); + } + + cnat_session_db = &cgse_session_db->nat44_session_db; + + vec_validate(cnat_out2in_hash, CNAT_MAIN_HASH_MASK); + memset(cnat_out2in_hash, 0xff, CNAT_MAIN_HASH_SIZE*sizeof(index_slist_t)); + + vec_validate(cnat_in2out_hash, CNAT_MAIN_HASH_MASK); + memset(cnat_in2out_hash, 0xff, CNAT_MAIN_HASH_SIZE*sizeof(index_slist_t)); + + vec_validate(cnat_session_hash, CNAT_SESSION_HASH_MASK); + memset(cnat_session_hash, 0xff, CNAT_SESSION_HASH_SIZE*sizeof(index_slist_t)); + + n = CNAT_USER_DB_SIZE * 1.15; /* use hash size as db size for LB margin */ + if (n % NUM_BITS_IN_UWORD) + n += (NUM_BITS_IN_UWORD - (n % NUM_BITS_IN_UWORD)); + + pool_alloc(cgse_user_db,n); + for(i=0; i< n; i++) { + pool_get(cgse_user_db, comb_user); + } + + for(i=0; i< n; i++) { + pool_put(cgse_user_db, cgse_user_db + i); + } + + cnat_user_db = &cgse_user_db->nat44_user_db; + + vec_validate(cnat_user_hash, CNAT_USER_HASH_MASK); + memset(cnat_user_hash, 0xff, CNAT_USER_HASH_SIZE*sizeof(index_slist_t)); + + n = CNAT_TIMEOUT_HASH_SIZE; /* use hash size as db size for LB margin */ + for(i=0; i< n; i++) { + pool_get(cnat_timeout_db, tdb); + } + + for(i=0; i< n; i++) { + pool_put(cnat_timeout_db, cnat_timeout_db + i); + } + + vec_validate(cnat_timeout_hash, CNAT_TIMEOUT_HASH_MASK); + memset(cnat_timeout_hash, 0xff, CNAT_TIMEOUT_HASH_SIZE*sizeof(index_slist_t)); + +#ifdef TOBE_PORTED + for (i=0;i<CNAT_MAX_VRFMAP_ENTRIES; i++) { + svi_params_array[i].svi_type = CGSE_SVI_TYPE_INFRA; + } +#endif + + cnat_db_v2_main.main_db_lockp = + clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES, + CLIB_CACHE_LINE_BYTES); + + cnat_db_v2_main.user_db_lockp = + clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES, + CLIB_CACHE_LINE_BYTES); + + cnat_db_v2_main.session_db_lockp = + clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES, + CLIB_CACHE_LINE_BYTES); + + ASSERT (pthread_spin_init(cnat_db_v2_main.main_db_lockp, + PTHREAD_PROCESS_PRIVATE) == 0); + ASSERT (pthread_spin_init(cnat_db_v2_main.user_db_lockp, + PTHREAD_PROCESS_PRIVATE) == 0); + ASSERT (pthread_spin_init(cnat_db_v2_main.session_db_lockp, + PTHREAD_PROCESS_PRIVATE) == 0); + + cnat_db_init_done = 1; + printf("CNAT DB init is successful\n"); + return; + //return 0; +} diff --git a/plugins/vcgn-plugin/vcgn/cnat_debug_msg_handler.c b/plugins/vcgn-plugin/vcgn/cnat_debug_msg_handler.c new file mode 100644 index 00000000..519f4b64 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_debug_msg_handler.c @@ -0,0 +1,1780 @@ +/* + *------------------------------------------------------------------ + * cnat_debug_msg_handler.c - debug command + * + * Copyright (c) 2007-2013 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ + +#include <vlib/vlib.h> +#include <vnet/vnet.h> + +#include "cnat_cli.h" + +u32 global_debug_flag = CNAT_DEBUG_NONE; +u16 debug_i_vrf = CNAT_DEBUG_NONE; +u32 debug_i_flag = CNAT_DEBUG_NONE; +u32 debug_i_addr_start = CNAT_DEBUG_NONE; +u32 debug_i_addr_end = CNAT_DEBUG_NONE; + +u16 debug_o_vrf = CNAT_DEBUG_NONE; +u32 debug_o_flag = CNAT_DEBUG_NONE; +u32 debug_o_addr_start = CNAT_DEBUG_NONE; +u32 debug_o_addr_end = CNAT_DEBUG_NONE; + +u32 udp_inside_checksum_disable = 0; +u32 udp_outside_checksum_disable = 0; +u32 udp_inside_packet_dump_enable = 0; +u32 udp_outside_packet_dump_enable = 0; + +u32 tcp_logging_enable_flag = 0; + +u32 icmp_debug_flag = 0; +u32 frag_debug_flag = 0; + +u32 nfv9_logging_debug_flag = 0; +u32 syslog_debug_flag = 0; + +u32 summary_stats_debug_flag = 0; + +/* + * By defaut we set the config debug level to 1 + */ +u32 config_debug_level = 1; + +#ifdef TOBE_PORTED +extern void show_bulk_port_stats(); +extern void clear_bulk_port_stats(); +extern void show_bulk_port_allocation(u16 in_vrfid, u32 inside_ip); +extern void set_bulk_size_to_all_vrfs(int bulk_size); + +u32 *cnat_debug_addr_list; + +extern int global_pd_dbg_lvl; +extern int global_pi_dbg_lvl; +extern int global_l2_dbg_lvl; +extern u32 cnat_pptp_debug_flag; +extern u32 cnat_pcp_debug_flag; + +void spp_api_cnat_get_cgn_db_summary +(spp_api_cnat_generic_command_request_t *); + +void spp_api_cnat_v4_debug_dummy_t_handler +(spp_api_cnat_v4_debug_dummy_t *mp) +{ + u32 arr[] = { DEBUG_DUMMY }; + spp_printf(CNAT_DUMMY_HANDLER_HIT, 1, arr); + if(global_pd_dbg_lvl) { + PLATFORM_DEBUG_PRINT("\n invalid debug command received: message id is 0\n"); + } + mp->rc = CNAT_ERR_INVALID_MSG_ID; + +} + +void spp_api_cnat_v4_debug_dummy_max_t_handler +(spp_api_cnat_v4_debug_dummy_max_t *mp) +{ + u32 arr[] = { DEBUG_DUMMY_MAX }; + spp_printf(CNAT_DUMMY_HANDLER_HIT, 1, arr); + if(global_pd_dbg_lvl) { + PLATFORM_DEBUG_PRINT("\n invalid debug command received: message id is out of range\n"); + } + mp->rc = CNAT_ERR_INVALID_MSG_ID; + +} + + +void spp_api_cnat_v4_debug_global_t_handler +(spp_api_cnat_v4_debug_global_t *mp) +{ + if ((mp->debug_flag == CNAT_DEBUG_GLOBAL_ERR) || + (mp->debug_flag == CNAT_DEBUG_GLOBAL_ALL) || + (mp->debug_flag == CNAT_DEBUG_NONE)) { + mp->rc = CNAT_SUCCESS; + global_debug_flag = mp->debug_flag; + return; + } + + mp->rc = CNAT_ERR_PARSER; + if(global_pd_dbg_lvl) { + PLATFORM_DEBUG_PRINT("invalid global debug flag %x\n", + mp->debug_flag); + } + return; +} + +void spp_node_print_cnat_counters() +{ + if (cnat_global_counters.nfv9_downstream_constipation_count) { + PLATFORM_DEBUG_PRINT("\nNF downstream constipation count: %llu\n", + cnat_global_counters.nfv9_downstream_constipation_count); + } + + if (xlat_global_counters.v4_to_v6_frag_invalid_uidb_drop_count || + xlat_global_counters.v6_to_v4_frag_invalid_uidb_drop_count || + xlat_global_counters.v4_to_v6_icmp_invalid_uidb_drop_count || + xlat_global_counters.v6_to_v4_icmp_invalid_uidb_drop_count || + xlat_global_counters.v4_to_v6_tcp_invalid_uidb_drop_count || + xlat_global_counters.v6_to_v4_tcp_invalid_uidb_drop_count || + xlat_global_counters.v4_to_v6_udp_invalid_uidb_drop_count || + xlat_global_counters.v6_to_v4_udp_invalid_uidb_drop_count || + xlat_global_counters.v4_to_v6_udp_crc_zero_invalid_uidb_drop_count) { + + PLATFORM_DEBUG_PRINT("\nMy_instance %d: v4_to_v6 frag invalid uidb drop count %lld", + my_instance_number, + xlat_global_counters.v4_to_v6_frag_invalid_uidb_drop_count); + + PLATFORM_DEBUG_PRINT("\nMy_instance %d: v6_to_v4 frag invalid uidb drop count %lld", + my_instance_number, + xlat_global_counters.v6_to_v4_frag_invalid_uidb_drop_count); + + PLATFORM_DEBUG_PRINT("\nMy_instance %d: v4_to_v6 icmp invalid uidb drop count %lld", + my_instance_number, + xlat_global_counters.v4_to_v6_icmp_invalid_uidb_drop_count); + + PLATFORM_DEBUG_PRINT("\nMy_instance %d: v6_to_v4 icmp invalid uidb drop count %lld", + my_instance_number, + xlat_global_counters.v6_to_v4_icmp_invalid_uidb_drop_count); + + PLATFORM_DEBUG_PRINT("\nMy_instance %d: v4_to_v6 tcp invalid uidb drop count %lld", + my_instance_number, + xlat_global_counters.v4_to_v6_tcp_invalid_uidb_drop_count); + + PLATFORM_DEBUG_PRINT("\nMy_instance %d: v6_to_v4 tcp invalid uidb drop count %lld", + my_instance_number, + xlat_global_counters.v6_to_v4_tcp_invalid_uidb_drop_count); + + PLATFORM_DEBUG_PRINT("\nMy_instance %d: v4_to_v6 udp invalid uidb drop count %lld", + my_instance_number, + xlat_global_counters.v4_to_v6_udp_invalid_uidb_drop_count); + + PLATFORM_DEBUG_PRINT("\nMy_instance %d: v6_to_v4 udp invalid uidb drop count %lld", + my_instance_number, + xlat_global_counters.v6_to_v4_udp_invalid_uidb_drop_count); + + PLATFORM_DEBUG_PRINT("\nMy_instance %d: v4_to_v6 udp crc0 invld uidb drop count %lld", + my_instance_number, + xlat_global_counters.v4_to_v6_udp_crc_zero_invalid_uidb_drop_count); + + PLATFORM_DEBUG_PRINT("\n"); + } + + +} + +void spp_log_p2mp_req(spp_api_cnat_p2mp_debug_request_t *mp) +{ + u8 i = 0; + u32 num_rec = spp_net_to_host_byte_order_32(&mp->param[i++]); + u32 err_c_num_args; + + while (num_rec--) { + u8 j = 0; + u16 err_c; + u16 num_args; + u32 argv[32]; + + err_c_num_args = spp_net_to_host_byte_order_32(&mp->param[i++]); + err_c = (err_c_num_args >> 16) & 0xFFFF; + num_args = err_c_num_args & 0xFFFF; + + num_args = (num_args <= 32) ? num_args : 32; + while (j < num_args) { + argv[j++] = spp_net_to_host_byte_order_32(&mp->param[i++]); + } + + i += ((num_args - 32) > 0) ? (num_args - 32) : 0; + spp_printf(err_c, num_args, argv); + } +} + +void nat64_debug_addr_pool_add_del() +{ + cnat_portmap_v2_t *my_pm = NULL; + cnat_portmap_v2_t *pm = NULL; + u32 len, i, pm_len; + + PLATFORM_DEBUG_PRINT("\n sizeof port_map =%d\n", sizeof( cnat_portmap_v2_t)); + len = 10; + PLATFORM_DEBUG_PRINT("\n adding 10 entries in vector 1-10\n "); + vec_add2(pm, my_pm, len); + pm = my_pm; + + PLATFORM_DEBUG_PRINT(" pm =%p , my_pm = %p\n", pm, my_pm); + for(i=0;i<len;i++){ + my_pm->ipv4_address = i+1; + my_pm++; + } + PLATFORM_DEBUG_PRINT(" pm =%p , my_pm = %p\n", pm, my_pm); + + pm_len = vec_len(pm); + PLATFORM_DEBUG_PRINT("\n printing vector contents : vec_len = %d \n", pm_len); + my_pm = pm; + for(i=0;i<pm_len ; i++) + { + PLATFORM_DEBUG_PRINT(" %d ,",my_pm->ipv4_address); + my_pm++; + } + PLATFORM_DEBUG_PRINT(" pm =%p , my_pm = %p\n", pm, my_pm); + + PLATFORM_DEBUG_PRINT("\n adding 5 entries in vector 11-15\n "); + len = 5; + vec_add2(pm, my_pm, len); + + PLATFORM_DEBUG_PRINT(" pm =%p , my_pm = %p\n", pm, my_pm); + for(i=0;i<len;i++) { + my_pm->ipv4_address = 11+i; + my_pm++; + } + + PLATFORM_DEBUG_PRINT(" pm =%p , my_pm = %p\n", pm, my_pm); + pm_len = vec_len(pm); + PLATFORM_DEBUG_PRINT("\n printing vector contents : vec_len = %d \n", pm_len); + my_pm = pm; + for(i=0;i<pm_len ; i++) + { + PLATFORM_DEBUG_PRINT(" %d ,",my_pm->ipv4_address); + my_pm++; + } + PLATFORM_DEBUG_PRINT(" pm =%p , my_pm = %p\n", pm, my_pm); + + PLATFORM_DEBUG_PRINT("\n adding 6 entries in vector 16-21\n "); + len = 6; + vec_add2(pm, my_pm, len); + PLATFORM_DEBUG_PRINT(" pm =%p , my_pm = %p\n", pm, my_pm); + for(i=0;i<len;i++) { + my_pm->ipv4_address = 16+i; + my_pm++; + } + + PLATFORM_DEBUG_PRINT(" pm =%p , my_pm = %p\n", pm, my_pm); + pm_len = vec_len(pm); + PLATFORM_DEBUG_PRINT("\n printing vector contents : vec_len = %d \n", pm_len); + my_pm = pm; + for(i=0;i<pm_len ; i++) + { + PLATFORM_DEBUG_PRINT(" %d ,",my_pm->ipv4_address); + my_pm++; + } + + PLATFORM_DEBUG_PRINT(" pm =%p , my_pm = %p\n", pm, my_pm); + PLATFORM_DEBUG_PRINT("\nDeleting 7 entries starting from entry value=8\n"); + pm_len = vec_len(pm); + my_pm = pm; + PLATFORM_DEBUG_PRINT(" pm_len =%d\n", pm_len); + for(i=0;i<pm_len;i++) + { + if(my_pm->ipv4_address == 8){ + PLATFORM_DEBUG_PRINT("\n match found brraeaking..\n"); + break; + } + my_pm++; + } + + PLATFORM_DEBUG_PRINT(" pm =%p , my_pm = %p i= %d\n", pm, my_pm, i); +// vec_delete(pm, 7, my_pm); + vec_delete(pm, 7, i); + PLATFORM_DEBUG_PRINT(" pm =%p , my_pm = %p\n", pm, my_pm); + + PLATFORM_DEBUG_PRINT(" printing entries aftr deletion from 8-14\n"); + pm_len = vec_len(pm); + PLATFORM_DEBUG_PRINT("\n printing vector contents : vec_len = %d \n", pm_len); + my_pm = pm; + for(i=0;i<pm_len ; i++) + { + PLATFORM_DEBUG_PRINT(" %d ,",my_pm->ipv4_address); + my_pm++; + } + + + PLATFORM_DEBUG_PRINT(" pm =%p , my_pm = %p\n", pm, my_pm); + + PLATFORM_DEBUG_PRINT("\nadding deleted items again 8-14\n"); + len =7; + vec_add2(pm, my_pm, len); + + PLATFORM_DEBUG_PRINT(" pm =%p , my_pm = %p\n", pm, my_pm); + for(i=0;i<len;i++) { + my_pm->ipv4_address = 8+i; + my_pm++; + } + + PLATFORM_DEBUG_PRINT(" pm =%p , my_pm = %p\n", pm, my_pm); + pm_len = vec_len(pm); + PLATFORM_DEBUG_PRINT("\n printing vector contents : vec_len = %d \n", pm_len); + my_pm = pm; + for(i=0;i<pm_len ; i++) + { + PLATFORM_DEBUG_PRINT(" %d ,",my_pm->ipv4_address); + my_pm++; + } + PLATFORM_DEBUG_PRINT(" pm =%p , my_pm = %p\n", pm, my_pm); + PLATFORM_DEBUG_PRINT("\n"); +} + + +void uidb_mapping_dump_timeout() { + + u32 i; + + PLATFORM_DEBUG_PRINT("\nCGSE uidb mapping table \n"); + for(i = 0;i < 30;i++) { + PLATFORM_DEBUG_PRINT("%d ",*(cgse_uidb_index_cgse_id_mapping_ptr + i)); + } + +} + +void nat64_debug_dump_info(u32 debug_value) +{ + + switch(debug_value) { + + case 1 : + bib_add_v6_entry1(); + break; + + case 2 : + bib_add_v6_entry2(); + break; + + case 3 : + bib_add_v6_entry1_new(); + break; + + case 4 : + bib_add_v6_entry1_new_static(); + break; + + case 5 : + bib_add_v6_entry3(); + break; + + case 6 : + bib_add_v6_entry_new2(); + break; + + case 7 : + nat64_fill_table_entry(); + break; + + case 10 : + nat64_db_dump_main(); + break; + + case 11 : + nat64_db_dump_user(); + break; + + case 12 : + nat64_db_dump_session(); + break; + + case 13 : + nat64_dump_table(); + break; + + case 14 : + bib_del_v6_entry1_static(); + break; + + case 15 : + nat64_debug_addr_pool_add_del(); + break; + + case 16 : + nat64_db_dump_timeout(0); + break; + + case 17 : + uidb_mapping_dump_timeout(); + break; + + default : break; + } +} + + +void cnat_debug_flags_set (spp_api_cnat_p2mp_debug_request_t *mp) +{ + u32 debug_variable = spp_net_to_host_byte_order_32(&mp->param[0]); + u32 debug_value = spp_net_to_host_byte_order_32(&mp->param[1]); + + cnat_key_t t_key; + + switch (debug_variable) { + + case CNAT_DEBUG_FLAG_UDP_INSIDE_CHECKSUM_DISABLE: + udp_inside_checksum_disable = debug_value; + PLATFORM_DEBUG_PRINT("\nudp_inside_checksum_disable set to %d\n", debug_value); + break; + + case CNAT_DEBUG_FLAG_UDP_OUTSIDE_CHECKSUM_DISABLE: + udp_outside_checksum_disable = debug_value; + PLATFORM_DEBUG_PRINT("\nudp_outside_checksum_disable set to %d\n", debug_value); + break; + + case CNAT_DEBUG_FLAG_UDP_OUTSIDE_PKT_DUMP_ENABLE: + udp_outside_packet_dump_enable = debug_value; + PLATFORM_DEBUG_PRINT("\nudp_outside_packet_dump_enable set to %d\n", debug_value); + break; + + case CNAT_DEBUG_FLAG_UDP_INSIDE_PKT_DUMP_ENABLE: + udp_inside_packet_dump_enable = debug_value; + PLATFORM_DEBUG_PRINT("\nudp_inside_packet_dump_enable set to %d\n", debug_value); + break; + + case CNAT_DEBUG_FLAG_ICMP_PKT_DUMP_ENABLE: + icmp_debug_flag = debug_value; + PLATFORM_DEBUG_PRINT("\nicmp_debug_flag set to %d\n", debug_value); + break; + + case CNAT_DEBUG_FLAG_FRAG_PKT_DUMP_ENABLE: + frag_debug_flag = debug_value; + PLATFORM_DEBUG_PRINT("\nfrag_debug_flag set to %d\n", debug_value); + break; + + case CNAT_DEBUG_FLAG_XLAT_CONFIG_DEBUG_ENABLE: + xlat_config_debug_level = debug_value; + PLATFORM_DEBUG_PRINT("\nxlat_config_debug_level set to %d\n", debug_value); + break; + + case CNAT_DEBUG_FLAG_NAT64_CONFIG_DEBUG_ENABLE: + nat64_config_debug_level = debug_value; + PLATFORM_DEBUG_PRINT("\nnat64_config_debug_level set to %d\n", debug_value); + nat64_debug_dump_info(debug_value); + break; + + case CNAT_DEBUG_FLAG_NAT64_DATA_PATH_DEBUG_ENABLE: + nat64_data_path_debug_level = debug_value; + PLATFORM_DEBUG_PRINT("\nnat64_data_path_debug_level set to %d\n", debug_value); + break; + + case CNAT_DEBUG_FLAG_DSLITE_CONFIG_DEBUG_ENABLE: + ds_lite_config_debug_level = debug_value; + PLATFORM_DEBUG_PRINT("\nds_lite_config_debug_level set to %d\n", debug_value); + break; + + case CNAT_DEBUG_FLAG_XLAT_DATA_PATH_DEBUG_ENABLE: + xlat_data_path_debug_level = debug_value; + PLATFORM_DEBUG_PRINT("\nxlat_data_path_debug_level set to %d\n", debug_value); + break; + + case CNAT_DEBUG_FLAG_CONFIG_DEBUG_ENABLE: + config_debug_level = debug_value; + + PLATFORM_DEBUG_PRINT("\nconfig_debug_level set to %d\n", debug_value); + break; + + case CNAT_DEBUG_FLAG_CONFIG_PPTP_ENABLE: + cnat_pptp_debug_flag = debug_value; + + if(debug_value == 0) { + pptp_dump_counters(); + } + + PLATFORM_DEBUG_PRINT("\ncnat_pptp_debug_level set to %d\n", debug_value); + break; + + case CNAT_DEBUG_FLAG_CONFIG_PCP_ENABLE: + cnat_pcp_debug_flag = debug_value; + + if(debug_value == 0) { + pcp_dump_counters(); + } + PLATFORM_DEBUG_PRINT("\ncnat_pcp_debug_level set to %d\n", debug_value); + break; + + case CNAT_DEBUG_FLAG_GLOBAL_DEBUG_ALL_ENABLE: + global_debug_flag = debug_value; + PLATFORM_DEBUG_PRINT("\nglobal_debug_flag set to %d\n", debug_value); + break; + + case CNAT_DEBUG_FLAG_SUMMARY_STATS_DEBUG_ENABLE: + summary_stats_debug_flag = debug_value; + PLATFORM_DEBUG_PRINT("\nsummary_stats_debug_flag set to %d\n", debug_value); + break; + + case CNAT_DEBUG_FLAG_SHOW_DEBUG_ENABLE: + show_debug_level = debug_value; + PLATFORM_DEBUG_PRINT("\nshow_debug_level set to %d\n", debug_value); + break; + + case CNAT_DEBUG_FLAG_TCP_LOGGING_ENABLE: + tcp_debug_logging_enable_disable(debug_value); + break; + case CNAT_DEBUG_FLAG_V6RD_DATA_PATH_DEBUG_ENABLE: + v6rd_data_path_debug_level = debug_value; + PLATFORM_DEBUG_PRINT("\nv6rd_data_path_debug_level set to %d\n", debug_value); + break; + case CNAT_DEBUG_FLAG_V6RD_CONFIG_DEBUG_ENABLE: + v6rd_config_debug_level = debug_value; + PLATFORM_DEBUG_PRINT("\nv6rd_config_debug_level set to %d\n", debug_value); + break; + case CNAT_DEBUG_FLAG_V6RD_DEFRAG_DEBUG_ENABLE: + /* set debug atleast to 1, so that critical errors are always + * enabled + */ + v6rd_defrag_debug_level = debug_value ? debug_value : 1; + PLATFORM_DEBUG_PRINT("\nv6rd_config_debug_level set to %d\n", debug_value); + break; + + + case CNAT_DEBUG_SET_STATIC_PORT_RANGE: + PLATFORM_DEBUG_PRINT("\nChange Static Port Range from %d --> %d\n", + cnat_static_port_range, debug_value); + cnat_static_port_range = debug_value; + break; + + case CNAT_DEBUG_FLAG_DSLITE_DP_ENABLE: + PLATFORM_DEBUG_PRINT("\n Changing dslite debug flag from %d --> %d\n", + dslite_debug_level, debug_value); + dslite_debug_level = debug_value; + break; + + case CNAT_DEBUG_FLAG_NFV9_LOGGING_DUMP_ENABLE: + nfv9_logging_debug_flag = debug_value; + PLATFORM_DEBUG_PRINT("\nnfv9_logging_debug_flag set to %d\n", debug_value); + break; + + case CNAT_DEBUG_FLAG_SYSLOG_LOGGING_DUMP_ENABLE: + syslog_debug_flag = debug_value; + PLATFORM_DEBUG_PRINT("\nsyslog_debug_flag set to %d\n", debug_value); + break; + + case CNAT_DEBUG_FLAG_MAPE_CONFIG_DEBUG_ENABLE: + mape_config_debug_level = debug_value; + PLATFORM_DEBUG_PRINT("\nmape_config_debug_level set to %d\n", debug_value); + break; + + case CNAT_DEBUG_FLAG_MAPE_DATA_PATH_DEBUG_ENABLE: + mape_data_path_debug_level = debug_value; + PLATFORM_DEBUG_PRINT("\nmape_data_path_debug_level set to %d\n", debug_value); + break; + + case CNAT_DEBUG_FLAGS_DUMP: + default: + { + PLATFORM_DEBUG_PRINT("\nCurrent values of Debug Variables\n"); + PLATFORM_DEBUG_PRINT("\nTo modify an item chose its index and provide the value\n"); + PLATFORM_DEBUG_PRINT("\n%d: udp_inside_checksum_disable %d\n", + CNAT_DEBUG_FLAG_UDP_INSIDE_CHECKSUM_DISABLE, + udp_inside_checksum_disable); + PLATFORM_DEBUG_PRINT("%d: udp_outside_checksum_disable %d\n", + CNAT_DEBUG_FLAG_UDP_OUTSIDE_CHECKSUM_DISABLE, + udp_outside_checksum_disable); + PLATFORM_DEBUG_PRINT("%d: udp_inside_packet_dump_enable %d\n", + CNAT_DEBUG_FLAG_UDP_OUTSIDE_PKT_DUMP_ENABLE, + udp_inside_packet_dump_enable); + PLATFORM_DEBUG_PRINT("%d: udp_outside_packet_dump_enable %d\n", + CNAT_DEBUG_FLAG_UDP_INSIDE_PKT_DUMP_ENABLE, + udp_outside_packet_dump_enable); + PLATFORM_DEBUG_PRINT("%d: icmp_debug_flag %d\n", + CNAT_DEBUG_FLAG_ICMP_PKT_DUMP_ENABLE, + icmp_debug_flag); + PLATFORM_DEBUG_PRINT("%d: frag_debug_flag %d\n", + CNAT_DEBUG_FLAG_FRAG_PKT_DUMP_ENABLE, + frag_debug_flag); + PLATFORM_DEBUG_PRINT("%d: config_debug_level %d\n", + CNAT_DEBUG_FLAG_CONFIG_DEBUG_ENABLE, + config_debug_level); + PLATFORM_DEBUG_PRINT("%d: global_debug_flag %d\n", + CNAT_DEBUG_FLAG_GLOBAL_DEBUG_ALL_ENABLE, + global_debug_flag); + PLATFORM_DEBUG_PRINT("%d: summary_stats_debug_flag %d\n", + CNAT_DEBUG_FLAG_SUMMARY_STATS_DEBUG_ENABLE, + summary_stats_debug_flag); + PLATFORM_DEBUG_PRINT("%d: show_debug_level %d\n", + CNAT_DEBUG_FLAG_SHOW_DEBUG_ENABLE, + show_debug_level); + PLATFORM_DEBUG_PRINT("%d: xlat_config_debug_level %d\n", + CNAT_DEBUG_FLAG_XLAT_CONFIG_DEBUG_ENABLE, + xlat_config_debug_level); + PLATFORM_DEBUG_PRINT("%d: xlat_data_path_debug_level %d\n", + CNAT_DEBUG_FLAG_XLAT_DATA_PATH_DEBUG_ENABLE, + xlat_data_path_debug_level); + PLATFORM_DEBUG_PRINT("%d: tcp_logging_enable_flag %d\n", + CNAT_DEBUG_FLAG_TCP_LOGGING_ENABLE, + tcp_logging_enable_flag); + PLATFORM_DEBUG_PRINT(" tcp_logging_enable_options DISABLE %d, ENABLE %d, PKT_DUMP %d, SUMMARY_DUMP %d\n", + TCP_LOGGING_DISABLE, TCP_LOGGING_ENABLE, + TCP_LOGGING_PACKET_DUMP, TCP_LOGGING_SUMMARY_DUMP); + PLATFORM_DEBUG_PRINT("%d: nfv9_logging_debug_flag %d\n", + CNAT_DEBUG_FLAG_NFV9_LOGGING_DUMP_ENABLE, + nfv9_logging_debug_flag); + PLATFORM_DEBUG_PRINT("%d: syslog_debug_flag %d\n", + CNAT_DEBUG_FLAG_SYSLOG_LOGGING_DUMP_ENABLE, + syslog_debug_flag); + PLATFORM_DEBUG_PRINT("%d: cnat_static_port_range %d\n", + CNAT_DEBUG_SET_STATIC_PORT_RANGE, + cnat_static_port_range); + PLATFORM_DEBUG_PRINT("%d: v6rd_data_path_debug_level %d\n", + CNAT_DEBUG_FLAG_V6RD_DATA_PATH_DEBUG_ENABLE, + v6rd_data_path_debug_level); + PLATFORM_DEBUG_PRINT("%d: v6rd_config_debug_level %d\n", + CNAT_DEBUG_FLAG_V6RD_CONFIG_DEBUG_ENABLE, + v6rd_config_debug_level); + PLATFORM_DEBUG_PRINT("%d: v6rd_defrag_debug_level %d\n", + CNAT_DEBUG_FLAG_V6RD_DEFRAG_DEBUG_ENABLE, + v6rd_defrag_debug_level); + PLATFORM_DEBUG_PRINT("%d: nat64_stful_debug %d\n", + CNAT_DEBUG_FLAG_NAT64_CONFIG_DEBUG_ENABLE, + nat64_config_debug_level); + PLATFORM_DEBUG_PRINT("%d: nat64_data_path_debug_level %d\n", + CNAT_DEBUG_FLAG_NAT64_DATA_PATH_DEBUG_ENABLE, + nat64_data_path_debug_level); + PLATFORM_DEBUG_PRINT("%d: dslite_debug_level %d\n", + CNAT_DEBUG_FLAG_DSLITE_DP_ENABLE, + dslite_debug_level); + PLATFORM_DEBUG_PRINT("%d: ds_lite_config_debug_level %d\n", + CNAT_DEBUG_FLAG_DSLITE_CONFIG_DEBUG_ENABLE, + ds_lite_config_debug_level); + PLATFORM_DEBUG_PRINT("%d: mape_config_debug_level %d\n", + CNAT_DEBUG_FLAG_MAPE_CONFIG_DEBUG_ENABLE, + mape_config_debug_level); + PLATFORM_DEBUG_PRINT("%d: mape_data_path_debug_level %d\n", + CNAT_DEBUG_FLAG_MAPE_DATA_PATH_DEBUG_ENABLE, + mape_data_path_debug_level); + } + break; + } +} + +extern void dump_cnat_frag_stats(void); + +void spp_api_cnat_p2mp_debug_request_t_handler +(spp_api_cnat_p2mp_debug_request_t *mp) +{ + u16 command_type; + +/* + if (mp->core_num != my_instance_number) { + mp->rc = CNAT_NOT_THIS_CORE; + return; + } +*/ + + command_type = spp_net_to_host_byte_order_16(&mp->dump_type); + PLATFORM_DEBUG_PRINT("-->> Core%d: Received debug msg ... cmd type: %d\n", + my_instance_number, command_type); + + switch (command_type) { + + case CNAT_DEBUG_GENERIC_COMMAND_DUMP_POLICY: + PLATFORM_DEBUG_PRINT("Core%d: policy\n", my_instance_number); + cnat_db_dump_policy(); + break; + + case CNAT_DEBUG_GENERIC_COMMAND_DUMP_MAIN_DB: + PLATFORM_DEBUG_PRINT("Core%d: Main db\n", my_instance_number); + cnat_db_dump_main(); + break; + + case CNAT_DEBUG_GENERIC_COMMAND_DUMP_MAIN_DB_SUMMARY: + PLATFORM_DEBUG_PRINT("Core%d: Main db Summary\n", my_instance_number); + cnat_db_dump_main_summary(); + break; + + case CNAT_DEBUG_GENERIC_COMMAND_DUMP_USER_DB: + PLATFORM_DEBUG_PRINT("Core%d: User db\n", my_instance_number); + cnat_db_dump_user(); + break; + + case CNAT_DEBUG_GENERIC_COMMAND_DUMP_USER_DB_SUMMARY: + PLATFORM_DEBUG_PRINT("Core%d: User db Summary\n", my_instance_number); + cnat_db_dump_user_summary(); + break; + + case CNAT_DEBUG_GENERIC_COMMAND_DUMP_HASHES_DB: + PLATFORM_DEBUG_PRINT("Core%d: Hashes db\n", my_instance_number); + cnat_db_dump_hashes(); + break; + + case CNAT_DEBUG_GENERIC_COMMAND_DUMP_VRF_MAP: + PLATFORM_DEBUG_PRINT("Core%d: Vrf map \n", my_instance_number); + cnat_db_dump_portmaps(); + break; + + case CNAT_DEBUG_GENERIC_COMMAND_DUMP_SUMMARY_DB: + PLATFORM_DEBUG_PRINT("Core%d: dump summary DB \n", my_instance_number); + cnat_db_summary(); + break; + + case CNAT_DEBUG_GENERIC_COMMAND_DUMP_STATS: + PLATFORM_DEBUG_PRINT("Core%d: dump stats \n", my_instance_number); + spp_node_print_stats(1, NULL); + break; + + /* Currently does same as clear node ctr, may change */ + case CNAT_DEBUG_GENERIC_COMMAND_CLEAR_STATS: + PLATFORM_DEBUG_PRINT("Core%d: clear stats \n", my_instance_number); + spp_node_clear_stats(); + break; + + case CNAT_DEBUG_SPP_LOG: + PLATFORM_DEBUG_PRINT("Core%d: SPP LOG \n", my_instance_number); + spp_log_p2mp_req(mp); + break; + + case CNAT_DEBUG_GENERIC_COMMAND_DUMP_NODE_COUNTER: + PLATFORM_DEBUG_PRINT("Core%d: NODE Counter dump \n", my_instance_number); + spp_node_print_counters(); + break; + + case CNAT_DEBUG_GENERIC_COMMAND_CLEAR_NODE_COUNTER: + PLATFORM_DEBUG_PRINT("Core%d: clear node counter \n", my_instance_number); + spp_node_clear_stats(); + break; + + case CNAT_DEBUG_GENERIC_COMMAND_DUMP_CNAT_COUNTER: + PLATFORM_DEBUG_PRINT("Core%d: CNAT Counter dump \n", my_instance_number); + spp_node_print_cnat_counters(); + break; + + case CNAT_DEBUG_GENERIC_COMMAND_DUMP_VA: + PLATFORM_DEBUG_PRINT("Core%d: VA dump \n", my_instance_number); + { + int argc = 1; + u32 arg[2] = {spp_net_to_host_byte_order_32(&mp->param[0]), 0}; + + cnat_va_dump(argc, arg); + } + break; + + case CNAT_DEBUG_GENERIC_COMMAND_SHOW_CONFIG: + PLATFORM_DEBUG_PRINT("Core%d: Show config dump \n", my_instance_number); + { + int argc = 0; + unsigned long arg[3]; + + if (arg[argc++] = spp_net_to_host_byte_order_32(&mp->param[0])) { + if (arg[argc++] = spp_net_to_host_byte_order_32(&mp->param[1])) { + ; + } else { + argc--; + } + } + + cnat_show_cdb_command_v2(argc, arg); +/* + xlat_show_config(); + cnat_alg_show(); +*/ + v6rd_show_config(); + dslite_show_config(); + nat64_dump_table(); + mape_show_config(); + } + break; + + case CNAT_DEBUG_GENERIC_COMMAND_SHOW_NFV9: + PLATFORM_DEBUG_PRINT("Core%d: NFv9 dump \n", my_instance_number); + #if 0 /* Currently not calling this */ + cnat_nfv9_show_cmd(); + #endif + break; + + case CNAT_DEBUG_GENERIC_COMMAND_SHOW_IVRF: + PLATFORM_DEBUG_PRINT("Core%d: IVRF dump \n", my_instance_number); + { + int argc = 0; + unsigned long arg[3]; + + if (arg[argc++] = spp_net_to_host_byte_order_32(&mp->param[0])) { + if (arg[argc++] = spp_net_to_host_byte_order_32(&mp->param[1])) { + if (arg[argc++] = spp_net_to_host_byte_order_32(&mp->param[2])) { + ; + } else { + argc--; + } + } else { + argc--; + } + } + + + PLATFORM_DEBUG_PRINT("VRF: %d \n", spp_net_to_host_byte_order_32(&mp->param[0])); + PLATFORM_DEBUG_PRINT("2nd arg: %d \n", + spp_net_to_host_byte_order_32(&mp->param[1])); + + cnat_show_ivrf_command_v2(argc, arg); + } + break; + + case CNAT_DEBUG_GENERIC_COMMAND_SHOW_OVRF: + PLATFORM_DEBUG_PRINT("Core%d: OVRF dump \n", my_instance_number); + { + int argc = 0; + unsigned long arg[3]; + if (arg[argc++] = spp_net_to_host_byte_order_32(&mp->param[0])) { + if (arg[argc++] = spp_net_to_host_byte_order_32(&mp->param[1])) { + if (arg[argc++] = spp_net_to_host_byte_order_32(&mp->param[2])) { + ; + } else { + argc--; + } + } else { + argc--; + } + } + + PLATFORM_DEBUG_PRINT("VRF: %d \n", spp_net_to_host_byte_order_32(&mp->param[0])); + PLATFORM_DEBUG_PRINT("2nd arg: %d \n", + spp_net_to_host_byte_order_32(&mp->param[1])); + + cnat_show_ovrf_command_v2(argc, arg); + } + break; + + case CNAT_DEBUG_GENERIC_COMMAND_DEBUG_OPTIONS: + PLATFORM_DEBUG_PRINT("Core%d: Debug option dump \n", my_instance_number); + { + global_pd_dbg_lvl = 0; + global_pi_dbg_lvl = 0; + global_l2_dbg_lvl = 0; + + global_pd_dbg_lvl = + spp_net_to_host_byte_order_32(&mp->param[0]); + global_pi_dbg_lvl = + spp_net_to_host_byte_order_32(&mp->param[1]); + global_l2_dbg_lvl = + spp_net_to_host_byte_order_32(&mp->param[2]); + + PLATFORM_DEBUG_PRINT("global_pd_dbg_lvl: %d, global_pi_dbg_lvl: %d, global_l2_dbg_lvl: %d\n", + global_pd_dbg_lvl, global_pi_dbg_lvl, global_l2_dbg_lvl); + } + break; + + case CNAT_DEBUG_GENERIC_COMMAND_DUMP_DEBUG_LEVELS: + PLATFORM_DEBUG_PRINT("Core%d: PD Debug level: %d \n", my_instance_number, global_pd_dbg_lvl); + PLATFORM_DEBUG_PRINT("Core%d: PI Debug level: %d \n", my_instance_number, global_pi_dbg_lvl); + PLATFORM_DEBUG_PRINT("Core%d: L2 Debug level: %d \n", my_instance_number, global_l2_dbg_lvl); + break; + + case CNAT_DEBUG_GENERIC_COMMAND_DEBUG_FLAGS: + PLATFORM_DEBUG_PRINT("Core%d: Debug flags \n", my_instance_number); + cnat_debug_flags_set(mp); + break; + + case CNAT_READ_TEMP_SENSORS: + PLATFORM_INIT_TEMP_SENSORS(); + PLATFORM_READ_CPU_SENSORS(TEMPERATURE_SENSOR_TEST_MODE); + break; + + case CNAT_BLOCK_OCTEON_SENSOR_READ: + + PLATFORM_SET_TEMP_READ_BLOCK(temperature_read_blocked , mp); +#ifdef TARGET_RODDICK + temperature_read_blocked = + spp_net_to_host_byte_order_32(&mp->param[0]); +#endif + break; + + case CNAT_DEBUG_TIMEOUT_DB_SUMMARY: + cnat_db_dump_timeout(); + break; + + /* This option has to be removed later */ + case CNAT_DEBUG_SET_BULK_SIZE: + PLATFORM_DEBUG_PRINT("\nSetting bulk size to %d\n", + spp_net_to_host_byte_order_32(&mp->param[0])); + set_bulk_size_to_all_vrfs( + spp_net_to_host_byte_order_32(&mp->param[0])); + break; + + case CNAT_DEBUG_SHOW_BULK_STAT: + show_bulk_port_stats(); + break; + + case CNAT_DEBUG_CLEAR_BULK_STAT: + clear_bulk_port_stats(); + break; + + case CNAT_DEBUG_SHOW_BULK_ALLOC: + { + u16 in_vrfid = spp_net_to_host_byte_order_32(&mp->param[0]); + u32 inside_ip = spp_net_to_host_byte_order_32(&mp->param[1]); + show_bulk_port_allocation(in_vrfid, inside_ip); + } + break; + + case CNAT_DEBUG_NAT44_IN2OUT_FRAG_STATS: + dump_cnat_frag_stats(); + break; + + default: + mp->rc = CNAT_ERR_INVALID_MSG_ID; + break; + } + + mp->rc = CNAT_SUCCESS; + return; +} + + +void spp_api_cnat_v4_debug_in2out_private_addr_t_handler +(spp_api_cnat_v4_debug_in2out_private_addr_t *mp) +{ + u16 i_vrf; + u32 debug_flag; + u32 start_addr, end_addr; + + + start_addr = + spp_net_to_host_byte_order_32(&mp->start_addr); + end_addr = + spp_net_to_host_byte_order_32(&mp->end_addr); + i_vrf = + spp_net_to_host_byte_order_16(&mp->i_vrf); + debug_flag = + spp_net_to_host_byte_order_32(&mp->debug_flag); + + if ((i_vrf > MAX_UIDX) || (start_addr > end_addr) || + ((debug_flag != CNAT_DEBUG_NONE) && + ((debug_flag & CNAT_DEBUG_ALL) == CNAT_DEBUG_NONE))) { + mp->rc = CNAT_ERR_PARSER; + PLATFORM_DEBUG_PRINT("invalid debug ivrf 0x%x flag 0x%x " + "start addr 0x%x end addr 0x%x\n", + i_vrf, debug_flag, + start_addr, end_addr); + return; + } + + PLATFORM_DEBUG_PRINT("debug ivrf 0x%x flag 0x%x " + "start addr 0x%x end addr 0x%x\n", + i_vrf, debug_flag, + start_addr, end_addr); + + mp->rc = CNAT_SUCCESS; + debug_i_vrf = i_vrf; + debug_i_flag = debug_flag; + debug_i_addr_start = start_addr; + debug_i_addr_end = end_addr; + +} + +void spp_api_cnat_v4_debug_out2in_public_addr_t_handler +(spp_api_cnat_v4_debug_out2in_public_addr_t *mp) +{ + u16 o_vrf; + u32 debug_flag; + u32 start_addr, end_addr; + + start_addr = + spp_net_to_host_byte_order_32(&mp->start_addr); + end_addr = + spp_net_to_host_byte_order_32(&mp->end_addr); + o_vrf = + spp_net_to_host_byte_order_16(&mp->o_vrf); + debug_flag = + spp_net_to_host_byte_order_32(&mp->debug_flag); + + if ((o_vrf > MAX_UIDX) || (start_addr > end_addr) || + ((debug_flag != CNAT_DEBUG_NONE) && + ((debug_flag & CNAT_DEBUG_ALL) == CNAT_DEBUG_NONE))) { + mp->rc = CNAT_ERR_PARSER; + PLATFORM_DEBUG_PRINT("invalid debug ovrf 0x%x flag 0x%x " + "start addr 0x%x end addr 0x%x\n", + o_vrf, debug_flag, + start_addr, end_addr); + return; + } + + mp->rc = CNAT_SUCCESS; + debug_o_vrf = o_vrf; + debug_o_flag = debug_flag; + debug_o_addr_start = start_addr; + debug_o_addr_end = end_addr; + + PLATFORM_DEBUG_PRINT(" o2i debug currently is not supported\n"); +} + +void nat64_reset_session_expiry(nat64_bib_entry_t *db) +{ + NAT64_STFUL_DEBUG_PRINT(3, " invoking nat64_clean_bib_db_entry\n " ); + nat64_clean_bib_db_entry(db); + NAT64_STFUL_DEBUG_PRINT(3, "done with clean_bib_db_entry\n " ); +} + +void spp_api_nat64_clear_db_request_t_handler +(spp_api_nat64_clear_db_request_t *mp) +{ + u16 port, proto, flag; + u32 index; + u32 i; + nat64_bib_entry_t* db; + nat64_v6_key_t ki; + nat64_table_entry_t *my_nat64_table_db_ptr; + u16 nat64_id; + + NAT64_STFUL_FUNC_ENTER; + NAT64_STFUL_DEBUG_DUMP_MSG(mp); + + nat64_id = spp_net_to_host_byte_order_16(&mp->nat64_id); + my_nat64_table_db_ptr = nat64_table_ptr + nat64_id; + + port = spp_net_to_host_byte_order_16(&mp->port_num); + proto = mp->protocol; + + ki.vrf = nat64_id; + ki.vrf |= ((u16)proto << CNAT_PRO_SHIFT); + + for(i =0 ; i< 4 ; i++) + ki.ipv6[i] = spp_net_to_host_byte_order_32(&mp->ip_addr[i]); + + ki.port = port; + + flag = mp->flags; + + mp->rc = CNAT_SUCCESS; + + NAT64_STFUL_DEBUG_PRINT(3, "\n Nat64_id = %d, port =%d, \ + proto =%d, flags=0x%08X",\ + nat64_id, port, proto, flag); + + NAT64_STFUL_DEBUG_PRINT(3, "\n IPv6 Addr = %08X : %08X: %08X: %08X",\ + ki.ipv6[0], ki.ipv6[1], ki.ipv6[2], ki.ipv6[3]); + + if (flag == CNAT_DB_CLEAR_SPECIFIC) { + NAT64_STFUL_DEBUG_PRINT(3, "\n clear specific \n"); + + db = nat64_bib_db_lookup_entry(&ki); + if (db == NULL) { + NAT64_STFUL_DEBUG_PRINT(3, "\n clear specific - not present\n"); + mp->rc = CNAT_NOT_FOUND_ANY; + return; + } + + if( !(db->flags & CNAT_DB_NAT64_FLAG) || + (db->nat64_inst_id != nat64_id)) + return; + + + nat64_reset_session_expiry(db); + return; + } + + pool_header_t *p = pool_header(nat64_bib_db); + + for(index = 0; index < vec_len(nat64_bib_db); index++) { + + /* check is it nat44, if yes skip , do it n nat44 as well */ + + if (PREDICT_FALSE(!clib_bitmap_get(p->free_bitmap, index))) { + db = nat64_bib_db + index; + + if( !(db->flags & CNAT_DB_NAT64_FLAG) || + (db->nat64_inst_id != nat64_id)) + continue; + + if (flag == CNAT_DB_CLEAR_ALL) { + nat64_reset_session_expiry(db); + continue; + } + + if (flag & CNAT_DB_CLEAR_ADDR) { + if ((db->v6_in_key.ipv6[0] != ki.ipv6[0]) || + (db->v6_in_key.ipv6[1] != ki.ipv6[1]) || + (db->v6_in_key.ipv6[2] != ki.ipv6[2]) || + (db->v6_in_key.ipv6[3] != ki.ipv6[3])){ + NAT64_STFUL_DEBUG_PRINT(3, "\n%s:%d\n", __FUNCTION__, \ + __LINE__ ); + continue; + } + } + + if (flag & CNAT_DB_CLEAR_PROTO) { + if (((db->v6_in_key.vrf & CNAT_PRO_MASK) >> CNAT_PRO_SHIFT) + != proto) { + NAT64_STFUL_DEBUG_PRINT(3, "\n%s:%d\n", __FUNCTION__, \ + __LINE__ ); + continue; + } + } + + if (flag & CNAT_DB_CLEAR_PORT) { + if (db->v6_in_key.port != port) { + NAT64_STFUL_DEBUG_PRINT(3, "\n%s:%d\n", __FUNCTION__, \ + __LINE__ ); + continue; + } + } + + NAT64_STFUL_DEBUG_PRINT(3, "\n%s:%d\n", __FUNCTION__, \ + __LINE__ ); + /* + * Delete if the db entry matches and it is not a + */ + nat64_reset_session_expiry(db); + } + } +} + +void inline cnat_clear_session_db(cnat_main_db_entry_t *db) +{ + if(PREDICT_FALSE(db->nsessions > 1)) { + u32 session_index = db->session_head_index; + cnat_session_entry_t *sdb; + do { + sdb = cnat_session_db + session_index; + if(PREDICT_FALSE(!sdb)) { + //TO DO: Debug msg? + break; + } + sdb->entry_expires = 0; + session_index = sdb->main_list.next; + } while(session_index != db->session_head_index + && db->session_head_index != EMPTY); + } + return; +} + +#ifdef CGSE_DS_LITE +extern dslite_table_entry_t dslite_table_array[]; + +void spp_api_ds_lite_clear_db_request_t_handler +(spp_api_ds_lite_clear_db_request_t *mp) +{ + u16 port, proto, flag; + u32 index; + u32 i; + cnat_main_db_entry_t *db; + cnat_user_db_entry_t *udb; + dslite_key_t ki; + dslite_table_entry_t *my_table_db_ptr; + u16 id; + u16 i_vrf; + + + id = spp_net_to_host_byte_order_16(&mp->ds_lite_id); + id = DS_LITE_CONFIG_TO_ARRAY_ID(id); + + my_table_db_ptr = &dslite_table_array[id]; + i_vrf = my_table_db_ptr->i_vrf; + + port = spp_net_to_host_byte_order_16(&mp->port_num); + proto = mp->protocol; + + ki.ipv4_key.k.vrf = i_vrf; + ki.ipv4_key.k.vrf |= ((u16)proto << CNAT_PRO_SHIFT); + + for(i =0 ; i< 4 ; i++) + ki.ipv6[i] = spp_net_to_host_byte_order_32(&mp->ip_addr[i]); + + ki.ipv4_key.k.port = port; + + flag = mp->flags; + + mp->rc = CNAT_SUCCESS; + + DSLITE_PRINTF(3, "\n dslite id = %d, port =%d" + "proto =%d, flags=0x%08X",\ + id, port, proto, flag); + + DSLITE_PRINTF(3, "\n IPv6 Addr = %08X : %08X: %08X: %08X",\ + ki.ipv6[0], ki.ipv6[1], ki.ipv6[2], ki.ipv6[3]); + + if (flag == CNAT_DB_CLEAR_SPECIFIC) { + DSLITE_PRINTF(3, "\n Clear specific NOT supported for DS Lite \n"); + return; + } + + pool_header_t *p = pool_header(cnat_main_db); + + for(index = 0; index < vec_len(cnat_main_db); index++) { + + /* check is it dslite entry, if not skip */ + + if (PREDICT_FALSE(!clib_bitmap_get(p->free_bitmap, index))) { + db = cnat_main_db + index; + + if( !(db->flags & CNAT_DB_DSLITE_FLAG) || + ((db->in2out_key.k.vrf & CNAT_VRF_MASK) != i_vrf) || + (db->flags & CNAT_DB_FLAG_STATIC_PORT)) { + continue; + } + + if (flag == CNAT_DB_CLEAR_ALL) { + + /* + * Make the entry time as very old (0), and wait + * for a timeout to auto-expire the entry. + */ + db->entry_expires = 0; + /* Handle sessions as well.. */ + cnat_clear_session_db(db); + continue; + } + + if (flag & CNAT_DB_CLEAR_ADDR) { + udb = cnat_user_db + db->user_index; + if(PREDICT_FALSE(!udb)) { + continue; + } + if ((udb->ipv6[0] != ki.ipv6[0]) || + (udb->ipv6[1] != ki.ipv6[1]) || + (udb->ipv6[2] != ki.ipv6[2]) || + (udb->ipv6[3] != ki.ipv6[3])) { + continue; + } + } + + if (flag & CNAT_DB_CLEAR_PROTO) { + if (((db->in2out_key.k.vrf & CNAT_PRO_MASK) >> CNAT_PRO_SHIFT) + != proto) { + continue; + } + } + + if (flag & CNAT_DB_CLEAR_PORT) { + if (db->in2out_key.k.port != port) { + continue; + } + } + + /* + * Mark for expiry in the next round of DB scan + */ + db->entry_expires = 0; + /* Handle sessions as well.. */ + cnat_clear_session_db(db); + } + } +} +#endif /* #ifdef CGSE_DS_LITE */ + +void spp_api_cnat_clear_db_request_t_handler +(spp_api_cnat_clear_db_request_t *mp) +{ + u16 i_vrf, port, proto, flag; + u32 ip_addr, index; + u64 a,b,c; + cnat_main_db_entry_t * db; + cnat_db_key_bucket_t ki; + +#if defined(TARGET_LINUX_UDVR) || defined(CNAT_PG) + i_vrf = mp->inside_vrf; + ip_addr = mp->ip_addr; + port = mp->port_num; + proto = mp->protocol; +#else + i_vrf = spp_net_to_host_byte_order_16(&mp->inside_vrf); + ip_addr = spp_net_to_host_byte_order_32(&mp->ip_addr); + port = spp_net_to_host_byte_order_16(&mp->port_num); + proto = spp_net_to_host_byte_order_16(&mp->protocol); +#endif + + + + ki.k.k.vrf = i_vrf; + ki.k.k.vrf |= ((u16)proto << CNAT_PRO_SHIFT); + ki.k.k.ipv4 = ip_addr; + ki.k.k.port = port; + + flag = mp->wildcard; + + mp->rc = CNAT_SUCCESS; + + if (flag == CNAT_DB_CLEAR_SPECIFIC) { + CNAT_V4_GET_HASH(ki.k.key64, + ki.bucket, + CNAT_MAIN_HASH_MASK); + index = cnat_in2out_hash[ki.bucket].next; + if (PREDICT_TRUE(index == EMPTY)) { + mp->rc = CNAT_NOT_FOUND_ANY; + return; + } + + do { + db = cnat_main_db + index; + + /* + * Delete if the db entry matches and it is not a + * STATIC port entry + */ + if ((db->in2out_key.key64 == ki.k.key64) && + !(db->flags & CNAT_DB_FLAG_STATIC_PORT) && + !(db->flags & CNAT_DB_NAT64_FLAG) && + !(db->flags & CNAT_DB_DSLITE_FLAG)) { + + /* + * Make the entry time as very old (0), and wait + * for a timeout to auto-expire the entry. + */ + db->entry_expires = 0; + /* Handle sessions as well.. */ + cnat_clear_session_db(db); + return; + } + index = db->in2out_hash.next; + } while (index != EMPTY); + + mp->rc = CNAT_NOT_FOUND_ANY; + return; + } + + pool_header_t *p = vec_header(cnat_main_db, sizeof(pool_header_t)); + + for(index = 0; index < vec_len(cnat_main_db); index++) { + + if (PREDICT_TRUE(!clib_bitmap_get(p->free_bitmap, index))) { + db = cnat_main_db + index; + + if(PREDICT_FALSE(db->flags & CNAT_DB_NAT64_FLAG)) { + continue; + } + + if(PREDICT_FALSE(db->flags & CNAT_DB_DSLITE_FLAG)) { + continue; + } + + if (flag == CNAT_DB_CLEAR_ALL) { + if (!(db->flags & CNAT_DB_FLAG_STATIC_PORT)) { + db->entry_expires = 0; + /* Handle sessions as well.. */ + cnat_clear_session_db(db); + } + continue; + } + + if (flag & CNAT_DB_CLEAR_VRF) { + if (((db->in2out_key.k.vrf & CNAT_VRF_MASK) != i_vrf)) { + continue; + } + } + + if (flag & CNAT_DB_CLEAR_ADDR) { + if ((db->in2out_key.k.ipv4 != ip_addr)) { + continue; + } + } + + if (flag & CNAT_DB_CLEAR_PROTO) { + if (((db->in2out_key.k.vrf & CNAT_PRO_MASK) >> CNAT_PRO_SHIFT) + != proto) { + continue; + } + } + + if (flag & CNAT_DB_CLEAR_PORT) { + if (db->in2out_key.k.port != port) { + continue; + } + } + + /* + * Delete if the db entry matches and it is not a + * STATIC port entry + */ + if (!(db->flags & CNAT_DB_FLAG_STATIC_PORT)) { + db->entry_expires = 0; + /* Handle sessions as well.. */ + cnat_clear_session_db(db); + } + } + } +} + +void +spp_api_cnat_generic_command_debug (cnat_generic_command_resp *mp_resp) +{ +#ifdef SHOW_DEBUG + u32 i, j; + + i = spp_net_to_host_byte_order_32(&(mp_resp->num_bytes)); + + PLATFORM_DEBUG_PRINT("\nNum_Bytes %d\n", i); + + for (j = 0; j < i; j++) { + PLATFORM_DEBUG_PRINT("0x%02X ", mp_resp->raw_data[j]); + if ((j % 16) == 15) { + PLATFORM_DEBUG_PRINT("\n"); + } + } +#endif +} + +/* + * The following commands implements command to dump the + * user-db information + * port-map information + * for a give user source IP address + * + * The format of the output is: + * Word 0: Address of udb + * Word 1: udb->translation_list_head_index + * Word 2: + * Bytes 0..1: udb->ntranslations + * Bytes 2..2: udb->icmp_msg_coung + * Bytes 3..3: udb->unused + * Word 3: udb->portmap_index + * Word 4: udb->key.k.ipv4 + * Word 5: + * Bytes 0..1: udb->key.k.port = 0 + * Bytes 2..3: udb->key.k.vrf + * Word 6: udb->user_hash + * Word 7: Address of my_pm + * Word 8: my_pm->status + * Word 9: my_pm->inuse + * Word A: my_pm->delete_time + * Word B: my_pm->ipv4_address + */ +void spp_api_cnat_generic_command_user_db_pm +(spp_api_cnat_generic_command_request_t *mp) +{ + u32 i; + cnat_db_key_bucket_t u_ki; + u16 my_vrfmap_index; + u32 *result_array; + cnat_generic_command_resp *mp_resp; + cnat_user_db_entry_t *udb; + cnat_user_db_entry_t *mp_udb; + cnat_vrfmap_t *my_vrfmap; + cnat_portmap_v2_t *pm; + cnat_portmap_v2_t *my_pm; + + /* + * Request structure is used to send the response + */ + mp_resp = (cnat_generic_command_resp *) mp; + + u_ki.k.k.vrf = spp_net_to_host_byte_order_32(&mp->params[1]); + u_ki.k.k.ipv4 = spp_net_to_host_byte_order_32(&mp->params[2]); + u_ki.k.k.port = 0; + + udb = cnat_user_db_lookup_entry(&u_ki); + + if (!udb) { + mp_resp->num_bytes = spp_host_to_net_byte_order_32(0); + goto no_udb_found; + } + + result_array = (u32 *) (&(mp_resp->raw_data[0])); + + i = 0; + result_array[i++] = spp_host_to_net_byte_order_32((u32) udb); + + mp_udb = (cnat_user_db_entry_t *) &(result_array[i]); + + /* + * Align the entry to the next 4 byte boundary + */ + i = i + ((sizeof(cnat_user_db_entry_t)+3)/4); + + /* + * Fill in the UDB information + */ + mp_udb->translation_list_head_index = + spp_host_to_net_byte_order_32(udb->translation_list_head_index); + mp_udb->ntranslations = + spp_host_to_net_byte_order_16(udb->ntranslations); + mp_udb->icmp_msg_count = udb->icmp_msg_count; + mp_udb->flags = udb->flags; + mp_udb->portmap_index = + spp_host_to_net_byte_order_32(udb->portmap_index); + mp_udb->key.k.ipv4 = + spp_host_to_net_byte_order_32(udb->key.k.ipv4); + mp_udb->key.k.port = + spp_host_to_net_byte_order_16(udb->key.k.port); + mp_udb->key.k.vrf = + spp_host_to_net_byte_order_16(udb->key.k.vrf); + mp_udb->user_hash.next = + spp_host_to_net_byte_order_32(udb->user_hash.next); + + my_vrfmap_index = vrf_map_array[u_ki.k.k.vrf]; + my_vrfmap = cnat_map_by_vrf + my_vrfmap_index; + pm = my_vrfmap->portmap_list; + my_pm = pm + udb->portmap_index; + + /* + * Fill in the port_map information + */ + result_array[i++] = spp_host_to_net_byte_order_32((u32) my_pm); + result_array[i++] = spp_host_to_net_byte_order_32(my_pm->inuse); + result_array[i++] = spp_host_to_net_byte_order_32(my_pm->delete_time); + result_array[i++] = spp_host_to_net_byte_order_32(my_pm->ipv4_address); + + mp_resp->num_bytes = spp_host_to_net_byte_order_32(i*4); + +no_udb_found: + spp_api_cnat_generic_command_debug(mp_resp); +} + +/* + * The following commands implements command to dump the + * DB usage stats for + * main-db + * user-db + * in2out hash + * out2in hash + * + * The format of the output is: + * Word 0: Main-DB - Total + * Word 1: Main-DB - Active + * Word 2: Main-DB - Free + * Word 3: User-DB - Total + * Word 4: User-DB - Active + * Word 5: User-DB - Free + * Word 6: Hash In2Out - Size + * Word 7: Hash In2Out - Used + * Word 8: Hash In2Out - Used Percentage + * Word 9: Hash Out2In - Size + * Word A: Hash Out2In - Used + * Word B: Hash Out2In - Used Percentage + */ +void spp_api_cnat_generic_command_db_summary +(spp_api_cnat_generic_command_request_t *mp) +{ + u32 count1, count2, count3; + u32 i = 0; + u32 k = 0; + cnat_generic_command_resp *mp_resp; + u32 *result_array; + + /* + * Request structure is used to send the response + */ + mp_resp = (cnat_generic_command_resp *) mp; + result_array = (u32 *) (&(mp_resp->raw_data[0])); + + /* + * Find entries free and used in main-db + */ + count1 = vec_len(cnat_main_db); + count2 = db_free_entry(cnat_main_db); + count3 = count1 - count2; + + *(result_array + i++) = spp_host_to_net_byte_order_32(count1); + *(result_array + i++) = spp_host_to_net_byte_order_32(count3); + *(result_array + i++) = spp_host_to_net_byte_order_32(count2); + + /* + * Find entries free and used in user-db + */ + count1 = vec_len(cnat_user_db); + count2 = db_free_entry(cnat_user_db); + count3 = count1 - count2; + + *(result_array + i++) = spp_host_to_net_byte_order_32(count1); + *(result_array + i++) = spp_host_to_net_byte_order_32(count3); + *(result_array + i++) = spp_host_to_net_byte_order_32(count2); + + /* + * Find entries used in in2out and out2in hash tables + * and percentage utilization. + */ + count1 = count2 = 0; + for (k = 0; k < CNAT_MAIN_HASH_SIZE; k++) { + if(cnat_in2out_hash[k].next != ~0) count1++; + if(cnat_out2in_hash[k].next != ~0) count2++; + + } + + count3 = count1*100/CNAT_MAIN_HASH_SIZE; + + *(result_array + i++) = spp_host_to_net_byte_order_32(CNAT_MAIN_HASH_SIZE); + *(result_array + i++) = spp_host_to_net_byte_order_32(count1); + *(result_array + i++) = spp_host_to_net_byte_order_32(count3); + + count3 = count2*100/CNAT_MAIN_HASH_SIZE; + + *(result_array + i++) = spp_host_to_net_byte_order_32(CNAT_MAIN_HASH_SIZE); + *(result_array + i++) = spp_host_to_net_byte_order_32(count2); + *(result_array + i++) = spp_host_to_net_byte_order_32(count3); + + mp_resp->num_bytes = spp_host_to_net_byte_order_32(i*4); + + spp_api_cnat_generic_command_debug(mp_resp); +} + +/* + * The following commands implements generic commands such as: + * + * Command 1: + * Reads num_bytes octets from a start_locn + * generic command <core_num> <cmd_type=1> <start_locn> <num_bytes> 0 0 0 0 0 + * + * Command 2: + * Writes upto 8 octets from a start_locn + * generic command <core_num> <cmd_type=2> <start_locn> <num_bytes> 0 0 0 0 0 + * + * Command 3: + * Dump the db summary stats + * generic command <core_num> <cmd_type=3> + * + * Command 4: + * Dump the user db entry + * generic command <core_num> <cmd_type=4> <vrf_id> <src_ip_addr> + * + * The following structures are referenced by this command: + * typedef struct _spp_api_cnat_generic_command_request { + * u16 _spp_msg_id; + * u8 rc; + * u8 core_num; + * u32 params[8]; + * } spp_api_cnat_generic_command_request_t; + * + * typedef struct { + * u16 spp_msg_id; + * u8 rc; + * u8 core; + * u32 num_bytes; + * u8 raw_data[0]; + * } cnat_generic_command_resp; + * + */ +void spp_api_cnat_generic_command_request_t_handler +(spp_api_cnat_generic_command_request_t *mp) +{ + cnat_generic_command_resp *resp_ptr; + u32 command_type, start_locn, num_bytes; + + command_type = spp_net_to_host_byte_order_32(&mp->params[0]); + resp_ptr = (cnat_generic_command_resp *) mp; + + switch (command_type) { + case CNAT_DEBUG_GENERIC_COMMAND_READ_MEM: + start_locn = spp_net_to_host_byte_order_32(&mp->params[1]); + num_bytes = spp_net_to_host_byte_order_32(&mp->params[2]); + clib_memcpy(&(resp_ptr->raw_data[0]), (u8 *) start_locn, num_bytes); + resp_ptr->num_bytes = spp_host_to_net_byte_order_32(num_bytes); + +#ifdef SHOW_DEBUG + { + u32 i; + + for (i = 0; i < num_bytes; i++) { + PLATFORM_DEBUG_PRINT("0x%02X ", resp_ptr->raw_data[i]); + if ((i % 16) == 15) { + PLATFORM_DEBUG_PRINT("\n"); + } + } + } +#endif + break; + + case CNAT_DEBUG_GENERIC_COMMAND_WRITE_MEM: + start_locn = spp_net_to_host_byte_order_32(&mp->params[1]); + num_bytes = spp_net_to_host_byte_order_32(&mp->params[2]); + + if (num_bytes > sizeof(u64)) { + mp->rc = CNAT_ERR_INVALID_MSG_SIZE; + return; + } + + clib_memcpy((u8 *) start_locn, &(mp->params[3]), num_bytes); + resp_ptr->num_bytes = 0; + break; + + case CNAT_DEBUG_GENERIC_COMMAND_DB_SUMMARY: + spp_api_cnat_generic_command_db_summary(mp); + break; + + case CNAT_DEBUG_GENERIC_COMMAND_USER_DB_PM: + spp_api_cnat_generic_command_user_db_pm(mp); + break; + + case CNAT_DEBUG_GET_CGN_DB_SUMMARY: + spp_api_cnat_get_cgn_db_summary(mp); + break; + + default: + mp->rc = CNAT_ERR_INVALID_MSG_ID; + break; + } +} + + +static int cnat_debug_init (void *notused) +{ + spp_msg_api_set_handler(SPP_API_CNAT_V4_DEBUG_DUMMY, + spp_api_cnat_v4_debug_dummy_t_handler); + + spp_msg_api_set_handler(SPP_API_CNAT_V4_DEBUG_DUMMY_MAX, + spp_api_cnat_v4_debug_dummy_max_t_handler); + + spp_msg_api_set_handler(SPP_API_CNAT_V4_DEBUG_GLOBAL, + spp_api_cnat_v4_debug_global_t_handler); + + spp_msg_api_set_handler(SPP_API_CNAT_V4_DEBUG_IN2OUT_PRIVATE_ADDR, + spp_api_cnat_v4_debug_in2out_private_addr_t_handler); + + spp_msg_api_set_handler(SPP_API_CNAT_V4_DEBUG_OUT2IN_PUBLIC_ADDR, + spp_api_cnat_v4_debug_out2in_public_addr_t_handler); + + spp_msg_api_set_handler(SPP_API_CNAT_CLEAR_DB_REQUEST, + spp_api_cnat_clear_db_request_t_handler); + + spp_msg_api_set_handler(SPP_API_CNAT_GENERIC_COMMAND_REQUEST, + spp_api_cnat_generic_command_request_t_handler); + + spp_msg_api_set_handler(SPP_API_CNAT_P2MP_DEBUG_REQUEST, + spp_api_cnat_p2mp_debug_request_t_handler); + + spp_msg_api_set_handler(SPP_API_NAT64_CLEAR_DB_REQUEST, + spp_api_nat64_clear_db_request_t_handler); + + spp_msg_api_set_handler(SPP_API_DS_LITE_CLEAR_DB_REQUEST, + spp_api_ds_lite_clear_db_request_t_handler); + + return 0; +} + +/* +************************ +* spp_api_cnat_get_cgn_db_summary +* This is for finding out the per core CPU users and utilization +************************ +*/ + +void spp_api_cnat_get_cgn_db_summary +(spp_api_cnat_generic_command_request_t *mp) +{ + u32 total_db_entries, total_free_entries, used_entries; + u32 i = 0; + cnat_generic_command_resp *mp_resp; + u32 *result_array; + + /* + * Request structure is used to send the response + */ + mp_resp = (cnat_generic_command_resp *) mp; + result_array = (u32 *) (&(mp_resp->raw_data[0])); + + /* + * Find entries free and used in main-db + */ + total_db_entries = vec_len(cnat_main_db); + total_free_entries = db_free_entry(cnat_main_db); + used_entries = total_db_entries - total_free_entries; + + *(result_array + i++) = spp_host_to_net_byte_order_32(total_db_entries); + *(result_array + i++) = spp_host_to_net_byte_order_32(used_entries); + *(result_array + i++) = spp_host_to_net_byte_order_32(total_free_entries); + + /* + * Find entries free and used in user-db + */ + total_db_entries = vec_len(cnat_user_db); + total_free_entries = db_free_entry(cnat_user_db); + used_entries = total_db_entries - total_free_entries; + + *(result_array + i++) = spp_host_to_net_byte_order_32(total_db_entries); + *(result_array + i++) = spp_host_to_net_byte_order_32(used_entries); + *(result_array + i++) = spp_host_to_net_byte_order_32(total_free_entries); + + mp_resp->num_bytes = spp_host_to_net_byte_order_32(i*sizeof(u32)); +} + +SPP_INIT_FUNCTION(cnat_debug_init); +#endif /* TOBE_PORTED */ diff --git a/plugins/vcgn-plugin/vcgn/cnat_global.c b/plugins/vcgn-plugin/vcgn/cnat_global.c new file mode 100644 index 00000000..71770834 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_global.c @@ -0,0 +1,79 @@ +/* + *------------------------------------------------------------------ + * cnat_global.c - global variables + * + * Copyright (c) 2008-2009, 2012 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ + +/* gloable variables */ + +#include <vlib/vlib.h> +#include <vnet/vnet.h> +#include <vppinfra/error.h> +#include <vnet/buffer.h> + +#include "dslite_defs.h" +#include "tcp_header_definitions.h" +u32 cnat_current_time; +u8 nfv9_configured = 0; +/* ctx/sf alloc error counters */ +u32 null_enq_pkt; +u32 null_deq_pkt; + +u32 null_enq_ctx; +u32 null_deq_ctx; + +u32 null_enq_wqe; +u32 null_deq_wqe; + +u32 ctx_alloc_errs; +u32 sf_alloc_errs; + +u32 rcv_pkt_errs; + +/* TOBE_PORTED : Remove following once we bring DSLite */ +u32 dslite_config_debug_level = 1; +u32 dslite_data_path_debug_level = 1; +u32 dslite_defrag_debug_level = 1; +u32 dslite_debug_level = 1; + +dslite_table_entry_t *dslite_table_db_ptr; + +/* + * ipv4_decr_ttl_n_calc_csum() + * - It decrements the TTL and calculates the incremental IPv4 checksum + */ + +/* TOBE_PORTED: Following is in cnat_util.c */ +always_inline __attribute__((unused)) +void ipv4_decr_ttl_n_calc_csum(ipv4_header *ipv4) +{ + u32 checksum; + u16 old; + u16 ttl; + + ttl = ipv4->ttl; + old = clib_net_to_host_u16(ttl); + + /* Decrement TTL */ + ipv4->ttl--; + + /* Calculate incremental checksum */ + checksum = old + (~clib_net_to_host_u16(ttl) & 0xFFFF); + checksum += clib_net_to_host_u16(ipv4->checksum); + checksum = (checksum & 0xFFFF) + (checksum >> 16); + ipv4->checksum = clib_host_to_net_u32(checksum + (checksum >> 16)); +} + diff --git a/plugins/vcgn-plugin/vcgn/cnat_global.h b/plugins/vcgn-plugin/vcgn/cnat_global.h new file mode 100644 index 00000000..823a4797 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_global.h @@ -0,0 +1,87 @@ +/* + *------------------------------------------------------------------ + * cnat_global.h - global definition and variables + * to be used by non cnat files + * + * Copyright (c) 2007-2012 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ + +#ifndef __CNAT_GLOBAL_H__ +#define __CNAT_GLOBAL_H__ + +/* gloable variables */ + +extern u8 cnat_db_init_done; +extern u32 cnat_current_time; +extern u64 in2out_drops_port_limit_exceeded; +extern u64 in2out_drops_system_limit_reached; +extern u64 in2out_drops_resource_depletion; +extern u64 no_translation_entry_drops; +extern u8 nfv9_configured; +extern u32 translation_create_count; +extern u32 translation_create_rate; + +extern u32 translation_delete_count; +extern u32 translation_delete_rate; + +extern u32 in2out_forwarding_count; +extern u32 in2out_forwarding_rate; + +extern u32 out2in_forwarding_count; +extern u32 out2in_forwarding_rate; + +extern u32 total_address_pool_allocated; + +extern u32 nat44_active_translations; + +#if 1 //DSLITE_DEF +extern u32 dslite_translation_create_rate; +extern u32 dslite_translation_delete_rate; +extern u32 dslite_translation_create_count; +extern u32 dslite_in2out_forwarding_count; +extern u32 dslite_in2out_forwarding_count; +extern u32 dslite_out2in_forwarding_rate; +#endif +/* sf/ctx allocation error collection declarations */ +#define COLLECT_FREQ_FACTOR 100 +#define NUM_SECONDS_TO_WAIT 10 +#define COUNTER_BUFFER_SIZE 25 + +extern u32 null_enq_pkt; +extern u32 null_deq_pkt; + +extern u32 null_enq_ctx; +extern u32 null_deq_ctx; + +extern u32 null_enq_wqe; +extern u32 null_deq_wqe; + +extern u32 ctx_alloc_errs; +extern u32 sf_alloc_errs; + +extern u32 rcv_pkt_errs; + +struct counter_array_t { + u32 sf_error_counter; + u32 ctx_error_counter; + u32 timestamp; +} counter_array_t; + +#define COUNTER_BUFFER_SIZE 25 +struct counter_array_t err_cnt_arr[COUNTER_BUFFER_SIZE]; + +//#define DISABLE_ICMP_THROTTLE_FOR_DEBUG_PURPOSE + +#endif /*__CNAT_GLOBAL_H__*/ diff --git a/plugins/vcgn-plugin/vcgn/cnat_ipv4_icmp.h b/plugins/vcgn-plugin/vcgn/cnat_ipv4_icmp.h new file mode 100644 index 00000000..664b62ac --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_ipv4_icmp.h @@ -0,0 +1,60 @@ +/* + *----------------------------------------------------------------------------- + * + * Filename: cnat_ipv4_icmp.h + * + * Description: common functions for icmp node + * + * Assumptions and Constraints: + * + * Copyright (c) 2000-2009, 2014 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *----------------------------------------------------------------------------- + */ + +#ifndef __CNAT_IPV4_ICMP_H__ +#define __CNAT_IPV4_ICMP_H__ + +#include "tcp_header_definitions.h" +#include "cnat_db.h" +#include "cnat_v4_functions.h" +#include "cnat_global.h" +#include "cnat_config.h" + +typedef struct { + icmp_v4_t *icmp; + ipv4_header *em_ip; + u16 *em_port; + u16 *em_l4_checksum; +} icmp_em_ip_info; + +extern void swap_ip_src_icmp_id(ipv4_header *ip, + icmp_v4_t *icmp, + cnat_main_db_entry_t *db, + u16 vrf); + +extern void swap_ip_dst_icmp_id(ipv4_header *ip, + icmp_v4_t *icmp, + cnat_main_db_entry_t *db, + u16 vrf); + +extern void swap_ip_src_emip_dst(ipv4_header *ip, + icmp_em_ip_info *icmp_info, + cnat_main_db_entry_t *db, u16 vrf); + +extern void swap_ip_dst_emip_src(ipv4_header *ip, + icmp_em_ip_info *icmp_info, + cnat_main_db_entry_t *db, u16 vrf); + + +#endif /* __CNAT_IPV4_ICMP_H__ */ diff --git a/plugins/vcgn-plugin/vcgn/cnat_ipv4_icmp_error_inside_input.c b/plugins/vcgn-plugin/vcgn/cnat_ipv4_icmp_error_inside_input.c new file mode 100644 index 00000000..218d7e53 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_ipv4_icmp_error_inside_input.c @@ -0,0 +1,476 @@ +/* + *--------------------------------------------------------------------------- + * cnat_ipv4_icmp_error_inside_input.c - cnat_ipv4_icmp_error_inside_input node pipeline stage functions + * + * Copyright (c) 2008-2014 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *--------------------------------------------------------------------------- + */ + +#include <vlib/vlib.h> +#include <vnet/vnet.h> +#include <vppinfra/error.h> +#include <vnet/buffer.h> + +#include "cnat_ipv4_icmp.h" + +#define foreach_cnat_ipv4_icmp_e_inside_input_error \ +_(CNAT_V4_ICMP_E_I2O_T_PKT, "cnat v4 icmp_e i2o packet transmit") \ +_(CNAT_V4_ICMP_E_I2O_D_PKT, "cnat v4 icmp_e i2o packet drop") \ +_(CNAT_V4_ICMP_E_I2O_TTL_DROP, "cnat v4 icmp_e i2o ttl drop") + +typedef enum { +#define _(sym,str) sym, + foreach_cnat_ipv4_icmp_e_inside_input_error +#undef _ + CNAT_IPV4_ICMP_E_INSIDE_INPUT_N_ERROR, +} cnat_ipv4_icmp_e_inside_input_t; + +static char * cnat_ipv4_icmp_e_inside_input_error_strings[] = { +#define _(sym,string) string, + foreach_cnat_ipv4_icmp_e_inside_input_error +#undef _ +}; + +typedef struct { + u32 cached_next_index; + /* $$$$ add data here */ + + /* convenience variables */ + vlib_main_t * vlib_main; + vnet_main_t * vnet_main; +} cnat_ipv4_icmp_e_inside_input_main_t; + +typedef enum { + CNAT_V4_ICMP_E_I2O_T, + CNAT_V4_ICMP_E_I2O_D, + CNAT_V4_ICMP_E_I2O_NEXT, +} cnat_ipv4_icmp_e_inside_input_next_t; + +cnat_ipv4_icmp_e_inside_input_main_t cnat_ipv4_icmp_e_inside_input_main; +vlib_node_registration_t cnat_ipv4_icmp_e_inside_input_node; + +#define NSTAGES 5 + +inline void swap_ip_src_emip_dst(ipv4_header *ip, + icmp_em_ip_info *icmp_info, + cnat_main_db_entry_t *db, u16 vrf) +{ + icmp_v4_t *icmp; + ipv4_header *em_ip; + u16 *em_port; + u32 old_ip; + u16 old_port; + u16 old_ip_checksum; + + /* + * declear variable + */ + CNAT_UPDATE_L3_CHECKSUM_DECLARE + CNAT_UPDATE_ICMP_ERR_CHECKSUM_DECLARE + + /* + * fix inner layer ip & l4 checksum + */ + em_ip = icmp_info->em_ip; + em_port = icmp_info->em_port; + + CNAT_UPDATE_L3_CHECKSUM(((u16)(db->in2out_key.k.ipv4)), + ((u16)(db->in2out_key.k.ipv4 >> 16)), + (clib_net_to_host_u16(em_ip->checksum)), + ((u16)(db->out2in_key.k.ipv4)), + ((u16)(db->out2in_key.k.ipv4 >> 16))) + + old_ip = clib_net_to_host_u32(em_ip->dest_addr); + old_port = clib_net_to_host_u16(*em_port); + old_ip_checksum = clib_net_to_host_u16(em_ip->checksum); + + em_ip->dest_addr = + clib_host_to_net_u32(db->out2in_key.k.ipv4); + em_ip->checksum = + clib_host_to_net_u16(new_l3_c); + *em_port = + clib_host_to_net_u16(db->out2in_key.k.port); + + /* + * fix outter layer ip & icmp checksum + */ + icmp = icmp_info->icmp; + CNAT_UPDATE_ICMP_ERR_CHECKSUM(((u16)(old_ip & 0xFFFF)), + ((u16)(old_ip >> 16)), + (old_port), + (old_ip_checksum), + (clib_net_to_host_u16(icmp->checksum)), + ((u16)(db->out2in_key.k.ipv4 & 0xffff)), + ((u16)(db->out2in_key.k.ipv4 >> 16)), + ((u16)(db->out2in_key.k.port)), + ((u16)(new_l3_c))) + + icmp->checksum = + clib_host_to_net_u16(new_icmp_c); + + old_ip = clib_net_to_host_u32(ip->src_addr); + + ip->src_addr = + clib_host_to_net_u32(db->out2in_key.k.ipv4); + + CNAT_UPDATE_L3_CHECKSUM(((u16)(old_ip & 0xFFFF)), + ((u16)(old_ip >> 16)), + (clib_net_to_host_u16(ip->checksum)), + ((u16)(db->out2in_key.k.ipv4)), + ((u16)(db->out2in_key.k.ipv4 >> 16))) + ip->checksum = + clib_host_to_net_u16(new_l3_c); + +#if 0 + if(is_static_dest_nat_enabled(vrf) == CNAT_SUCCESS) { + /* + * fix inner layer ip & l4 checksum + */ + em_snat_ip = icmp_info->em_ip; + em_snat_port = icmp_info->em_port; + + old_ip = spp_net_to_host_byte_order_32(&(em_snat_ip->src_addr)); + old_port = spp_net_to_host_byte_order_16(em_snat_port); + old_ip_checksum = spp_net_to_host_byte_order_16(&(em_snat_ip->checksum)); + direction = 0; + if(cnat_static_dest_db_get_translation(em_snat_ip->src_addr, &postmap_ip, vrf, direction) == CNAT_SUCCESS) { + old_postmap_ip = spp_net_to_host_byte_order_32(&postmap_ip); + + CNAT_UPDATE_L3_CHECKSUM(((u16)(old_ip)), + ((u16)(old_ip >> 16)), + (spp_net_to_host_byte_order_16(&(em_snat_ip->checksum))), + ((u16)(old_postmap_ip)), + ((u16)(old_postmap_ip >> 16))) + em_snat_ip->src_addr = postmap_ip; + em_snat_ip->checksum = + spp_host_to_net_byte_order_16(new_l3_c); + + /* + * fix outter layer ip & icmp checksum + */ + icmp = icmp_info->icmp; + CNAT_UPDATE_ICMP_ERR_CHECKSUM(((u16)(old_ip & 0xFFFF)), + ((u16)(old_ip >> 16)), + (old_port), + (old_ip_checksum), + (spp_net_to_host_byte_order_16(&(icmp->checksum))), + ((u16)(old_postmap_ip & 0xffff)), + ((u16)(old_postmap_ip >> 16)), + ((u16)(old_port)), + ((u16)(new_l3_c))) + + icmp->checksum = + spp_host_to_net_byte_order_16(new_icmp_c); + + } + } + + if(is_static_dest_nat_enabled(vrf) == CNAT_SUCCESS) { + direction = 0; + if(cnat_static_dest_db_get_translation(ip->dest_addr, &postmap_ip, vrf, direction) == CNAT_SUCCESS) { + + old_ip = spp_net_to_host_byte_order_32(&(ip->dest_addr)); + old_postmap_ip = spp_net_to_host_byte_order_32(&postmap_ip); + + CNAT_UPDATE_L3_CHECKSUM(((u16)(old_ip & 0xFFFF)), + ((u16)(old_ip >> 16)), + (spp_net_to_host_byte_order_16(&(ip->checksum))), + ((u16)(old_postmap_ip & 0xFFFF)), + ((u16)(old_postmap_ip >> 16))) + ip->dest_addr = postmap_ip; + + ip->checksum = + clib_host_to_net_u16(new_l3_c); + } + } +#endif /* if 0 */ + +} + +/* + * Use the generic buffer metadata + first line of packet data prefetch + * stage function from <api/pipeline.h>. This is usually a Good Idea. + */ +#define stage0 generic_stage0 + + +static inline void +stage1(vlib_main_t * vm, vlib_node_runtime_t * node, u32 buffer_index) +{ + u64 a, b, c; + u32 bucket; + u8 *prefetch_target; + + vlib_buffer_t * b0 = vlib_get_buffer (vm, buffer_index); + ipv4_header *ip = vlib_buffer_get_current (b0); + u8 ipv4_hdr_len = (ip->version_hdr_len_words & 0xf) << 2; + icmp_v4_t *icmp = (icmp_v4_t *)((u8*)ip + ipv4_hdr_len); + ipv4_header *em_ip = (ipv4_header*)((u8*)icmp + 8); /* embedded pkt's v4 hdr */ + u8 em_ip_hdr_len = (em_ip->version_hdr_len_words & 0xf) << 2; + + u64 tmp = 0; + u32 protocol = CNAT_ICMP; + + /* Check L4 header for embedded packet */ + if (em_ip->protocol == TCP_PROT) { + tcp_hdr_type *tcp = (tcp_hdr_type*)((u8 *)em_ip + em_ip_hdr_len); + vnet_buffer(b0)->vcgn_uii.key.k.port = + clib_net_to_host_u16(tcp->dest_port); + protocol = CNAT_TCP; + + } else if (em_ip->protocol == UDP_PROT) { + udp_hdr_type_t *udp = (udp_hdr_type_t *)((u8 *)em_ip + em_ip_hdr_len); + vnet_buffer(b0)->vcgn_uii.key.k.port = + clib_net_to_host_u16(udp->dest_port); + protocol = CNAT_UDP; + + } else { + icmp_v4_t *icmp = (icmp_v4_t*)((u8 *)em_ip + em_ip_hdr_len); + vnet_buffer(b0)->vcgn_uii.key.k.port = + clib_net_to_host_u16(icmp->identifier); + + if (PREDICT_FALSE((icmp->type != ICMPV4_ECHOREPLY) && + (icmp->type != ICMPV4_ECHO))) { + /* + * Try to set invalid protocol for these cases, so that + * hash lookup does not return valid main_db. This approach + * may optimize the regular cases with valid protocols + * as it avoids one more check for regular cases in stage3 + */ + protocol = CNAT_INVALID_PROTO; + } + } + + tmp = vnet_buffer(b0)->vcgn_uii.key.k.ipv4 = + clib_net_to_host_u32(em_ip->dest_addr); + + tmp |= ((u64)vnet_buffer(b0)->vcgn_uii.key.k.port) << 32; + + PLATFORM_CNAT_SET_RX_VRF(vnet_buffer(b0)->sw_if_index[VLIB_RX], + vnet_buffer(b0)->vcgn_uii.key.k.vrf, + protocol) + tmp |= ((u64)vnet_buffer(b0)->vcgn_uii.key.k.vrf) << 48; + + CNAT_V4_GET_HASH(tmp, bucket, CNAT_MAIN_HASH_MASK) + + prefetch_target = (u8 *)(&cnat_in2out_hash[bucket]); + vnet_buffer(b0)->vcgn_uii.bucket = bucket; + + /* Prefetch the hash bucket */ + CLIB_PREFETCH(prefetch_target, CLIB_CACHE_LINE_BYTES, LOAD); +} + +#define SPP_LOG2_CACHE_LINE_BYTES 6 +#define SPP_CACHE_LINE_BYTES (1 << SPP_LOG2_CACHE_LINE_BYTES) + +static inline void +stage2(vlib_main_t * vm, vlib_node_runtime_t * node, u32 buffer_index) +{ + vlib_buffer_t * b0 = vlib_get_buffer(vm, buffer_index); + uword prefetch_target0, prefetch_target1; + u32 bucket = vnet_buffer(b0)->vcgn_uii.bucket; + + /* read the hash bucket */ + u32 db_index = vnet_buffer(b0)->vcgn_uii.bucket + = cnat_in2out_hash[bucket].next; + + if (PREDICT_TRUE(db_index != EMPTY)) { + /* + * Prefetch database keys. We save space by not cache-line + * aligning the DB entries. We don't want to waste LSU + * bandwidth prefetching stuff we won't need. + */ + prefetch_target0 = (uword)(cnat_main_db + db_index); + CLIB_PREFETCH((void*)prefetch_target0, CLIB_CACHE_LINE_BYTES, LOAD); + /* Just beyond DB key #2 */ + prefetch_target1 = prefetch_target0 + + STRUCT_OFFSET_OF(cnat_main_db_entry_t, user_ports); + /* If the targets are in different lines, do the second prefetch */ + if (PREDICT_FALSE((prefetch_target0 & ~(SPP_CACHE_LINE_BYTES-1)) != + (prefetch_target1 & ~(SPP_CACHE_LINE_BYTES-1)))) { + CLIB_PREFETCH((void *)prefetch_target1, CLIB_CACHE_LINE_BYTES, LOAD); + } + } +} + +static inline void +stage3(vlib_main_t * vm, vlib_node_runtime_t * node, u32 buffer_index) +{ + cnat_main_db_entry_t *db; + vlib_buffer_t * b0 = vlib_get_buffer(vm, buffer_index); + u32 db_index = vnet_buffer(b0)->vcgn_uii.bucket; + + /* + * Note: if the search already failed (empty bucket), + * the answer is already in the pipeline context structure + */ + if (PREDICT_TRUE(db_index != EMPTY)) { + + /* + * Note: hash collisions suck. We can't easily prefetch around them. + * The first trip around the track will be fast. After that, maybe + * not so much... + */ + do { + db = cnat_main_db + db_index; + if (PREDICT_TRUE(db->in2out_key.key64 == + vnet_buffer(b0)->vcgn_uii.key.key64)) { + break; + } + db_index = db->in2out_hash.next; + } while (db_index != EMPTY); + + /* Stick the answer back into the pipeline context structure */ + vnet_buffer(b0)->vcgn_uii.bucket = db_index; + } +} + + + +static inline u32 last_stage (vlib_main_t *vm, vlib_node_runtime_t *node, + u32 bi) +{ + vlib_buffer_t *b0 = vlib_get_buffer (vm, bi); + u32 db_index = vnet_buffer(b0)->vcgn_uii.bucket; + int disposition = CNAT_V4_ICMP_E_I2O_T; + int counter = CNAT_V4_ICMP_E_I2O_T_PKT; + + ipv4_header *ip = (ipv4_header *)vlib_buffer_get_current(b0); + u8 ipv4_hdr_len = (ip->version_hdr_len_words & 0xf) << 2; + icmp_v4_t *icmp = (icmp_v4_t *)((u8*)ip + ipv4_hdr_len); + ipv4_header *em_ip = (ipv4_header*)((u8*)icmp + 8); /* embedded pkt's v4 hdr */ + u8 em_ip_hdr_len = (em_ip->version_hdr_len_words & 0xf) << 2; + vlib_node_t *n = vlib_get_node (vm, cnat_ipv4_icmp_e_inside_input_node.index); + u32 node_counter_base_index = n->error_heap_index; + vlib_error_main_t * em = &vm->error_main; + cnat_main_db_entry_t *db = NULL; + icmp_em_ip_info icmp_info; + + if (PLATFORM_HANDLE_TTL_DECREMENT) { + if (PREDICT_FALSE(ip->ttl <= 1)) { + /* + * As it is ICMP error packet with TTL <= 1, + * let's drop the packet (no need to genereate + * another ICMP error). + */ + + disposition = CNAT_V4_ICMP_E_I2O_D; + counter = CNAT_V4_ICMP_E_I2O_TTL_DROP; + + goto drop_pkt; + } + } + + if (PREDICT_TRUE(db_index != EMPTY)) { + icmp_info.em_ip = em_ip; + icmp_info.icmp = icmp; + //icmp_info.em_port = vnet_buffer(b0)->vcgn_uii.key.k.port; + + /* Note: This could have been done in stage1 itself, + * but we need to introduce one u16 * in vnet_buffer_opaque_t + * Since this flow is expected to be very rare in actual + * deployment scenario, we may afford to do these steps here + * as well. Lets confirm during core review. */ + if (em_ip->protocol == TCP_PROT) { + tcp_hdr_type *tcp = (tcp_hdr_type*)((u8 *)em_ip + em_ip_hdr_len); + icmp_info.em_port = &(tcp->dest_port); + } else if (em_ip->protocol == UDP_PROT) { + udp_hdr_type_t *udp = (udp_hdr_type_t *) + ((u8 *)em_ip + em_ip_hdr_len); + icmp_info.em_port = &(udp->dest_port); + } else { + icmp_v4_t *icmp_inner = (icmp_v4_t*)((u8 *)em_ip + em_ip_hdr_len); + icmp_info.em_port = &(icmp_inner->identifier); + } + + db = cnat_main_db + db_index; + /* + * 1. update dst addr:dst port of embedded ip pkt + * update src addr of icmp pkt + * 2. fix udp/tcp/ip checksum of embedded pkt + * fix icmp, ip check of icmp pkt + * don need to update the timer + */ + + if (PREDICT_FALSE(icmp_debug_flag)) { + printf("\nDUMPING ICMP PKT BEFORE\n"); + print_icmp_pkt(ip); + } + + if (PLATFORM_HANDLE_TTL_DECREMENT) { + /* + * Decrement TTL and update IPv4 checksum + */ + ipv4_decr_ttl_n_calc_csum(ip); + } + + swap_ip_src_emip_dst(ip, &icmp_info, + db, db->in2out_key.k.vrf); + + if (PREDICT_FALSE(icmp_debug_flag)) { + printf("\nDUMPING ICMP PKT AFTER\n"); + print_icmp_pkt(ip); + } + in2out_forwarding_count++; + + } else { + disposition = CNAT_V4_ICMP_E_I2O_D; + counter = CNAT_V4_ICMP_E_I2O_D_PKT; + } + +drop_pkt: + + em->counters[node_counter_base_index + counter] += 1; + return disposition; +} + +#include <vnet/pipeline.h> + +static uword cnat_ipv4_icmp_e_inside_input_node_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + return dispatch_pipeline (vm, node, frame); +} + + +VLIB_REGISTER_NODE (cnat_ipv4_icmp_e_inside_input_node) = { + .function = cnat_ipv4_icmp_e_inside_input_node_fn, + .name = "vcgn-v4-icmp-e-i2o", + .vector_size = sizeof (u32), + .type = VLIB_NODE_TYPE_INTERNAL, + + .n_errors = ARRAY_LEN(cnat_ipv4_icmp_e_inside_input_error_strings), + .error_strings = cnat_ipv4_icmp_e_inside_input_error_strings, + + .n_next_nodes = CNAT_V4_ICMP_E_I2O_NEXT, + + /* edit / add dispositions here */ + .next_nodes = { + [CNAT_V4_ICMP_E_I2O_T] = "ip4-input", + [CNAT_V4_ICMP_E_I2O_D] = "error-drop", + }, +}; + +clib_error_t *cnat_ipv4_icmp_e_inside_input_init (vlib_main_t *vm) +{ + cnat_ipv4_icmp_e_inside_input_main_t * mp = &cnat_ipv4_icmp_e_inside_input_main; + + mp->vlib_main = vm; + mp->vnet_main = vnet_get_main(); + + return 0; +} + +VLIB_INIT_FUNCTION (cnat_ipv4_icmp_e_inside_input_init); diff --git a/plugins/vcgn-plugin/vcgn/cnat_ipv4_icmp_error_outside_input.c b/plugins/vcgn-plugin/vcgn/cnat_ipv4_icmp_error_outside_input.c new file mode 100644 index 00000000..f25f4d02 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_ipv4_icmp_error_outside_input.c @@ -0,0 +1,452 @@ +/* + *--------------------------------------------------------------------------- + * cnat_ipv4_icmp_error_outside_input.c - cnat_ipv4_icmp_error_outside_input node pipeline stage functions + * + * Copyright (c) 2008-2014 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *--------------------------------------------------------------------------- + */ + +#include <vlib/vlib.h> +#include <vnet/vnet.h> +#include <vppinfra/error.h> +#include <vnet/buffer.h> + +#include "cnat_ipv4_icmp.h" + +#define foreach_cnat_ipv4_icmp_e_outside_input_error \ +_(CNAT_V4_ICMP_E_O2I_T_PKT, "cnat v4 icmp_e o2i packet transmit") \ +_(CNAT_V4_ICMP_E_O2I_D_PKT, "cnat v4 icmp_e o2i packet drop") \ +_(CNAT_V4_ICMP_E_O2I_TTL_DROP, "cnat v4 icmp_e o2i ttl drop") + +typedef enum { +#define _(sym,str) sym, + foreach_cnat_ipv4_icmp_e_outside_input_error +#undef _ + CNAT_IPV4_ICMP_E_OUTSIDE_INPUT_N_ERROR, +} cnat_ipv4_icmp_e_outside_input_t; + +static char * cnat_ipv4_icmp_e_outside_input_error_strings[] = { +#define _(sym,string) string, + foreach_cnat_ipv4_icmp_e_outside_input_error +#undef _ +}; + +typedef struct { + u32 cached_next_index; + /* $$$$ add data here */ + + /* convenience variables */ + vlib_main_t * vlib_main; + vnet_main_t * vnet_main; +} cnat_ipv4_icmp_e_outside_input_main_t; + +typedef enum { + CNAT_V4_ICMP_E_O2I_T, + CNAT_V4_ICMP_E_O2I_D, + CNAT_V4_ICMP_E_O2I_NEXT, +} cnat_ipv4_icmp_e_outside_input_next_t; + +cnat_ipv4_icmp_e_outside_input_main_t cnat_ipv4_icmp_e_outside_input_main; +vlib_node_registration_t cnat_ipv4_icmp_e_outside_input_node; + +#define NSTAGES 5 + +inline void swap_ip_dst_emip_src(ipv4_header *ip, + icmp_em_ip_info *icmp_info, + cnat_main_db_entry_t *db, u16 vrf) +{ + icmp_v4_t *icmp; + ipv4_header *em_ip; + u16 *em_port; + u32 old_ip; + u16 old_port; + u16 old_ip_checksum; + + /* + * declear variable + */ + CNAT_UPDATE_L3_CHECKSUM_DECLARE + CNAT_UPDATE_ICMP_ERR_CHECKSUM_DECLARE + + /* + * fix inner layer ip & l4 checksum + */ + em_ip = icmp_info->em_ip; + em_port = icmp_info->em_port; + + CNAT_UPDATE_L3_CHECKSUM(((u16)(db->out2in_key.k.ipv4)), + ((u16)(db->out2in_key.k.ipv4 >> 16)), + (clib_net_to_host_u16(em_ip->checksum)), + ((u16)(db->in2out_key.k.ipv4)), + ((u16)(db->in2out_key.k.ipv4 >> 16))) + + old_ip = clib_net_to_host_u32(em_ip->src_addr); + old_port = clib_net_to_host_u16(*em_port); + old_ip_checksum = clib_net_to_host_u16(em_ip->checksum); + + em_ip->src_addr = + clib_host_to_net_u32(db->in2out_key.k.ipv4); + em_ip->checksum = + clib_host_to_net_u16(new_l3_c); + *em_port = + clib_host_to_net_u16(db->in2out_key.k.port); + + /* + * fix outter layer ip & icmp checksum + */ + icmp = icmp_info->icmp; + CNAT_UPDATE_ICMP_ERR_CHECKSUM(((u16)(old_ip & 0xFFFF)), + ((u16)(old_ip >> 16)), + (old_port), + (old_ip_checksum), + (clib_net_to_host_u16(icmp->checksum)), + ((u16)(db->in2out_key.k.ipv4 & 0xffff)), + ((u16)(db->in2out_key.k.ipv4 >> 16)), + ((u16)(db->in2out_key.k.port)), + ((u16)(new_l3_c))) + + icmp->checksum = + clib_host_to_net_u16(new_icmp_c); + + old_ip = clib_net_to_host_u32(ip->dest_addr); + + ip->dest_addr = + clib_host_to_net_u32(db->in2out_key.k.ipv4); + + CNAT_UPDATE_L3_CHECKSUM(((u16)(old_ip & 0xFFFF)), + ((u16)(old_ip >> 16)), + (clib_net_to_host_u16(ip->checksum)), + ((u16)(db->in2out_key.k.ipv4)), + ((u16)(db->in2out_key.k.ipv4 >> 16))) + ip->checksum = + clib_host_to_net_u16(new_l3_c); + +#if 0 + if(is_static_dest_nat_enabled(vrf) == CNAT_SUCCESS) { + /* + * fix inner layer ip & l4 checksum + */ + em_snat_ip = icmp_info->em_ip; + em_snat_port = icmp_info->em_port; + + old_ip = spp_net_to_host_byte_order_32(&(em_snat_ip->dest_addr)); + old_port = spp_net_to_host_byte_order_16(em_snat_port); + old_ip_checksum = spp_net_to_host_byte_order_16(&(em_snat_ip->checksum)); + direction = 1; + if(cnat_static_dest_db_get_translation(em_snat_ip->dest_addr, &postmap_ip, vrf, direction) == CNAT_SUCCESS) { + old_postmap_ip = spp_net_to_host_byte_order_32(&postmap_ip); + + CNAT_UPDATE_L3_CHECKSUM(((u16)(old_ip)), + ((u16)(old_ip >> 16)), + (spp_net_to_host_byte_order_16(&(em_snat_ip->checksum))), + ((u16)(old_postmap_ip)), + ((u16)(old_postmap_ip >> 16))) + em_snat_ip->dest_addr = postmap_ip; + em_snat_ip->checksum = + spp_host_to_net_byte_order_16(new_l3_c); + + /* + * fix outter layer ip & icmp checksum + */ + icmp = icmp_info->icmp; + CNAT_UPDATE_ICMP_ERR_CHECKSUM(((u16)(old_ip & 0xFFFF)), + ((u16)(old_ip >> 16)), + (old_port), + (old_ip_checksum), + (spp_net_to_host_byte_order_16(&(icmp->checksum))), + ((u16)(old_postmap_ip & 0xffff)), + ((u16)(old_postmap_ip >> 16)), + ((u16)(old_port)), + ((u16)(new_l3_c))) + + icmp->checksum = + spp_host_to_net_byte_order_16(new_icmp_c); + + } + } + + if(is_static_dest_nat_enabled(vrf) == CNAT_SUCCESS) { + direction = 1; + if(cnat_static_dest_db_get_translation(ip->src_addr, &postmap_ip, vrf, direction) == CNAT_SUCCESS) { + CNAT_UPDATE_L3_CHECKSUM_DECLARE + + old_ip = spp_net_to_host_byte_order_32(&(ip->src_addr)); + old_postmap_ip = spp_net_to_host_byte_order_32(&postmap_ip); + + CNAT_UPDATE_L3_CHECKSUM(((u16)(old_ip & 0xFFFF)), + ((u16)(old_ip >> 16)), + (spp_net_to_host_byte_order_16(&(ip->checksum))), + ((u16)(old_postmap_ip & 0xFFFF)), + ((u16)(old_postmap_ip >> 16))) + ip->checksum = + spp_host_to_net_byte_order_16(new_l3_c); + ip->src_addr = postmap_ip; + } + } +#endif /* if 0 */ +} + +/* + * Use the generic buffer metadata + first line of packet data prefetch + * stage function from <api/pipeline.h>. This is usually a Good Idea. + */ +#define stage0 generic_stage0 + + +static inline void +stage1(vlib_main_t * vm, vlib_node_runtime_t * node, u32 buffer_index) +{ + u64 a, b, c; + u32 bucket; + u8 *prefetch_target; + + vlib_buffer_t * b0 = vlib_get_buffer (vm, buffer_index); + ipv4_header *ip = vlib_buffer_get_current (b0); + u8 ipv4_hdr_len = (ip->version_hdr_len_words & 0xf) << 2; + icmp_v4_t *icmp = (icmp_v4_t *)((u8*)ip + ipv4_hdr_len); + ipv4_header *em_ip = (ipv4_header*)((u8*)icmp + 8); /* embedded pkt's v4 hdr */ + u8 em_ip_hdr_len = (em_ip->version_hdr_len_words & 0xf) << 2; + + u64 tmp = 0; + u32 protocol = CNAT_ICMP; + + /* Check L4 header for embedded packet */ + if (em_ip->protocol == TCP_PROT) { + tcp_hdr_type *tcp = (tcp_hdr_type*)((u8 *)em_ip + em_ip_hdr_len); + vnet_buffer(b0)->vcgn_uii.key.k.port = + clib_net_to_host_u16(tcp->src_port); + protocol = CNAT_TCP; + + } else if (em_ip->protocol == UDP_PROT) { + udp_hdr_type_t *udp = (udp_hdr_type_t *)((u8 *)em_ip + em_ip_hdr_len); + vnet_buffer(b0)->vcgn_uii.key.k.port = + clib_net_to_host_u16(udp->src_port); + protocol = CNAT_UDP; + + } else { + icmp_v4_t *icmp = (icmp_v4_t*)((u8 *)em_ip + em_ip_hdr_len); + vnet_buffer(b0)->vcgn_uii.key.k.port = + clib_net_to_host_u16(icmp->identifier); + + if (PREDICT_FALSE((icmp->type != ICMPV4_ECHOREPLY) && + (icmp->type != ICMPV4_ECHO))) { + /* + * Try to set invalid protocol for these cases, so that + * hash lookup does not return valid main_db. This approach + * may optimize the regular cases with valid protocols + * as it avoids one more check for regular cases in stage3 + */ + protocol = CNAT_INVALID_PROTO; + } + } + + tmp = vnet_buffer(b0)->vcgn_uii.key.k.ipv4 = + clib_net_to_host_u32(em_ip->src_addr); + + tmp |= ((u64)vnet_buffer(b0)->vcgn_uii.key.k.port) << 32; + + PLATFORM_CNAT_SET_RX_VRF(vnet_buffer(b0)->sw_if_index[VLIB_RX], + vnet_buffer(b0)->vcgn_uii.key.k.vrf, + protocol) + tmp |= ((u64)vnet_buffer(b0)->vcgn_uii.key.k.vrf) << 48; + + CNAT_V4_GET_HASH(tmp, bucket, CNAT_MAIN_HASH_MASK) + + prefetch_target = (u8 *)(&cnat_out2in_hash[bucket]); + vnet_buffer(b0)->vcgn_uii.bucket = bucket; + + /* Prefetch the hash bucket */ + CLIB_PREFETCH(prefetch_target, CLIB_CACHE_LINE_BYTES, LOAD); +} + + +#define SPP_LOG2_CACHE_LINE_BYTES 6 +#define SPP_CACHE_LINE_BYTES (1 << SPP_LOG2_CACHE_LINE_BYTES) + +static inline void +stage2(vlib_main_t * vm, vlib_node_runtime_t * node, u32 buffer_index) +{ + vlib_buffer_t * b0 = vlib_get_buffer(vm, buffer_index); + uword prefetch_target0, prefetch_target1; + u32 bucket = vnet_buffer(b0)->vcgn_uii.bucket; + + /* read the hash bucket */ + u32 db_index = vnet_buffer(b0)->vcgn_uii.bucket + = cnat_out2in_hash[bucket].next; + + if (PREDICT_TRUE(db_index != EMPTY)) { + /* + * Prefetch database keys. We save space by not cache-line + * aligning the DB entries. We don't want to waste LSU + * bandwidth prefetching stuff we won't need. + */ + prefetch_target0 = (uword)(cnat_main_db + db_index); + CLIB_PREFETCH((void*)prefetch_target0, CLIB_CACHE_LINE_BYTES, LOAD); + /* Just beyond DB key #2 */ + prefetch_target1 = prefetch_target0 + + STRUCT_OFFSET_OF(cnat_main_db_entry_t, user_ports); + /* If the targets are in different lines, do the second prefetch */ + if (PREDICT_FALSE((prefetch_target0 & ~(SPP_CACHE_LINE_BYTES-1)) != + (prefetch_target1 & ~(SPP_CACHE_LINE_BYTES-1)))) { + CLIB_PREFETCH((void *)prefetch_target1, CLIB_CACHE_LINE_BYTES, LOAD); + } + } +} + + +static inline void +stage3(vlib_main_t * vm, vlib_node_runtime_t * node, u32 buffer_index) +{ + cnat_main_db_entry_t *db; + vlib_buffer_t * b0 = vlib_get_buffer(vm, buffer_index); + u32 db_index = vnet_buffer(b0)->vcgn_uii.bucket; + + /* + * Note: if the search already failed (empty bucket), + * the answer is already in the pipeline context structure + */ + if (PREDICT_TRUE(db_index != EMPTY)) { + + /* + * Note: hash collisions suck. We can't easily prefetch around them. + * The first trip around the track will be fast. After that, maybe + * not so much... + */ + do { + db = cnat_main_db + db_index; + if (PREDICT_TRUE(db->out2in_key.key64 == + vnet_buffer(b0)->vcgn_uii.key.key64)) { + break; + } + db_index = db->out2in_hash.next; + } while (db_index != EMPTY); + + /* Stick the answer back into the pipeline context structure */ + vnet_buffer(b0)->vcgn_uii.bucket = db_index; + } +} + +static inline u32 last_stage (vlib_main_t *vm, vlib_node_runtime_t *node, + u32 bi) +{ + vlib_buffer_t *b0 = vlib_get_buffer (vm, bi); + u32 db_index = vnet_buffer(b0)->vcgn_uii.bucket; + int disposition = CNAT_V4_ICMP_E_O2I_T; + int counter = CNAT_V4_ICMP_E_O2I_T_PKT; + + ipv4_header *ip = (ipv4_header *)vlib_buffer_get_current(b0); + u8 ipv4_hdr_len = (ip->version_hdr_len_words & 0xf) << 2; + icmp_v4_t *icmp = (icmp_v4_t *)((u8*)ip + ipv4_hdr_len); + ipv4_header *em_ip = (ipv4_header*)((u8*)icmp + 8); /* embedded pkt's v4 hdr */ + u8 em_ip_hdr_len = (em_ip->version_hdr_len_words & 0xf) << 2; + vlib_node_t *n = vlib_get_node (vm, cnat_ipv4_icmp_e_outside_input_node.index); + u32 node_counter_base_index = n->error_heap_index; + vlib_error_main_t * em = &vm->error_main; + cnat_main_db_entry_t *db = NULL; + icmp_em_ip_info icmp_info; + + + if (PREDICT_TRUE(db_index != EMPTY)) { + + icmp_info.em_ip = em_ip; + icmp_info.icmp = icmp; + + /* Note: This could have been done in stage1 itself, + * but we need to introduce one u16 * in vnet_buffer_opaque_t + * Since this flow is expected to be very rare in actual + * deployment scenario, we may afford to do these steps here + * as well. Lets confirm during core review. */ + + if (em_ip->protocol == TCP_PROT) { + tcp_hdr_type *tcp = (tcp_hdr_type*)((u8 *)em_ip + em_ip_hdr_len); + icmp_info.em_port = &(tcp->src_port); + } else if (em_ip->protocol == UDP_PROT) { + udp_hdr_type_t *udp = (udp_hdr_type_t *) + ((u8 *)em_ip + em_ip_hdr_len); + icmp_info.em_port = &(udp->src_port); + } else { + icmp_v4_t *icmp_inner = (icmp_v4_t*)((u8 *)em_ip + em_ip_hdr_len); + icmp_info.em_port = &(icmp_inner->identifier); + } + + db = cnat_main_db + db_index; + + if (PREDICT_FALSE(icmp_debug_flag)) { + printf("\nDUMPING ICMP PKT BEFORE\n"); + print_icmp_pkt(ip); + } + + if (PLATFORM_HANDLE_TTL_DECREMENT) { + /* + * Decrement TTL and update IPv4 checksum + */ + ipv4_decr_ttl_n_calc_csum(ip); + } + + swap_ip_dst_emip_src(ip, &icmp_info, + db, db->in2out_key.k.vrf); + + if (PREDICT_FALSE(icmp_debug_flag)) { + printf("\nDUMPING ICMP PKT AFTER\n"); + print_icmp_pkt(ip); + } + + } else { + disposition = CNAT_V4_ICMP_E_O2I_D; + counter = CNAT_V4_ICMP_E_O2I_D_PKT; + } + + em->counters[node_counter_base_index + counter] += 1; + return disposition; +} + +#include <vnet/pipeline.h> + +static uword cnat_ipv4_icmp_e_outside_input_node_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + return dispatch_pipeline (vm, node, frame); +} + + +VLIB_REGISTER_NODE (cnat_ipv4_icmp_e_outside_input_node) = { + .function = cnat_ipv4_icmp_e_outside_input_node_fn, + .name = "vcgn-v4-icmp-e-o2i", + .vector_size = sizeof (u32), + .type = VLIB_NODE_TYPE_INTERNAL, + + .n_errors = ARRAY_LEN(cnat_ipv4_icmp_e_outside_input_error_strings), + .error_strings = cnat_ipv4_icmp_e_outside_input_error_strings, + + .n_next_nodes = CNAT_V4_ICMP_E_O2I_NEXT, + + /* edit / add dispositions here */ + .next_nodes = { + [CNAT_V4_ICMP_E_O2I_T] = "ip4-input", + [CNAT_V4_ICMP_E_O2I_D] = "error-drop", + }, +}; + +clib_error_t *cnat_ipv4_icmp_e_outside_input_init (vlib_main_t *vm) +{ + cnat_ipv4_icmp_e_outside_input_main_t * mp = &cnat_ipv4_icmp_e_outside_input_main; + + mp->vlib_main = vm; + mp->vnet_main = vnet_get_main(); + + return 0; +} + +VLIB_INIT_FUNCTION (cnat_ipv4_icmp_e_outside_input_init); diff --git a/plugins/vcgn-plugin/vcgn/cnat_ipv4_icmp_query_inside_input.c b/plugins/vcgn-plugin/vcgn/cnat_ipv4_icmp_query_inside_input.c new file mode 100644 index 00000000..1b9f0266 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_ipv4_icmp_query_inside_input.c @@ -0,0 +1,404 @@ +/* + *--------------------------------------------------------------------------- + * cnat_ipv4_icmp_query_inside_input.c - cnat_ipv4_icmp_query_inside_input node pipeline stage functions + * + * + * Copyright (c) 2008-2014 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *--------------------------------------------------------------------------- + */ +#include <vlib/vlib.h> +#include <vnet/vnet.h> +#include <vppinfra/error.h> +#include <vnet/buffer.h> + +#include "cnat_ipv4_icmp.h" + +#define foreach_cnat_ipv4_icmp_q_inside_input_error \ +_(CNAT_V4_ICMP_Q_I2O_T_PKT, "cnat v4 icmp_q i2o packet transmit") \ +_(CNAT_V4_ICMP_Q_I2O_MISS_PKT, "cnat v4 icmp_q i2o db miss") \ +_(CNAT_V4_ICMP_Q_I2O_TTL_GEN, "cnat v4 icmp_q i2o ttl generate") \ +_(CNAT_V4_ICMP_Q_I2O_TTL_DROP, "cnat v4 icmp_q i2o ttl drop") \ +_(CNAT_V4_ICMP_Q_I2O_NO_SESSION_DROP, "cnat v4 icmp_q i2o no session drop") + +typedef enum { +#define _(sym,str) sym, + foreach_cnat_ipv4_icmp_q_inside_input_error +#undef _ + CNAT_IPV4_ICMP_Q_INSIDE_INPUT_N_ERROR, +} cnat_ipv4_icmp_q_inside_input_t; + +static char * cnat_ipv4_icmp_q_inside_input_error_strings[] = { +#define _(sym,string) string, + foreach_cnat_ipv4_icmp_q_inside_input_error +#undef _ +}; + +typedef struct { + u32 cached_next_index; + /* $$$$ add data here */ + + /* convenience variables */ + vlib_main_t * vlib_main; + vnet_main_t * vnet_main; +} cnat_ipv4_icmp_q_inside_input_main_t; + +typedef enum { + CNAT_V4_ICMP_Q_I2O_T, + CNAT_V4_ICMP_Q_I2O_E, + CNAT_V4_ICMP_Q_I2O_D, + CNAT_V4_ICMP_Q_I2O_NEXT, +} cnat_ipv4_icmp_q_inside_input_next_t; + +cnat_ipv4_icmp_q_inside_input_main_t cnat_ipv4_icmp_q_inside_input_main; +vlib_node_registration_t cnat_ipv4_icmp_q_inside_input_node; + +#define NSTAGES 5 + +inline void swap_ip_src_icmp_id(ipv4_header *ip, + icmp_v4_t *icmp, + cnat_main_db_entry_t *db, u16 vrf) +{ +#if 0 + u32 postmap_ip; + u8 direction; + u32 old_ip; + u32 old_postmap_ip; + + + if(is_static_dest_nat_enabled(vrf) == CNAT_SUCCESS) { + direction = 0; + if(cnat_static_dest_db_get_translation(ip->dest_addr, &postmap_ip, vrf, direction) == CNAT_SUCCESS) { + CNAT_UPDATE_L3_CHECKSUM_DECLARE + + old_ip = spp_net_to_host_byte_order_32(&(ip->dest_addr)); + old_postmap_ip = spp_net_to_host_byte_order_32(&postmap_ip); + + CNAT_UPDATE_L3_CHECKSUM(((u16)(old_ip & 0xFFFF)), + ((u16)(old_ip >> 16)), + (spp_net_to_host_byte_order_16(&(ip->checksum))), + ((u16)(old_postmap_ip & 0xFFFF)), + ((u16)(old_postmap_ip >> 16))) + ip->dest_addr = postmap_ip; + + ip->checksum = + spp_host_to_net_byte_order_16(new_l3_c); + } + } +#endif /* if 0 */ + /* + * declare variable + */ + CNAT_UPDATE_L3_L4_CHECKSUM_DECLARE + /* + * calculate checksum + */ + CNAT_UPDATE_L3_ICMP_CHECKSUM(((u16)(db->in2out_key.k.ipv4)), + ((u16)(db->in2out_key.k.ipv4 >> 16)), + (db->in2out_key.k.port), + (clib_net_to_host_u16(ip->checksum)), + (clib_net_to_host_u16(icmp->checksum)), + ((u16)(db->out2in_key.k.ipv4)), + ((u16)(db->out2in_key.k.ipv4 >> 16)), + (db->out2in_key.k.port)) + //set ip header + ip->src_addr = + clib_host_to_net_u32(db->out2in_key.k.ipv4); + ip->checksum = + clib_host_to_net_u16(new_l3_c); + + //set icmp header + icmp->identifier = + clib_host_to_net_u16(db->out2in_key.k.port); + icmp->checksum = + clib_host_to_net_u16(new_l4_c); +} + +/* + * Use the generic buffer metadata + first line of packet data prefetch + * stage function from <api/pipeline.h>. This is usually a Good Idea. + */ +#define stage0 generic_stage0 + +static inline void +stage1(vlib_main_t * vm, vlib_node_runtime_t * node, u32 buffer_index) +{ + u64 a, b, c; + u32 bucket; + u8 *prefetch_target; + + vlib_buffer_t * b0 = vlib_get_buffer (vm, buffer_index); + ipv4_header *ip = vlib_buffer_get_current (b0); + u8 ipv4_hdr_len = (ip->version_hdr_len_words & 0xf) << 2; + icmp_v4_t *icmp = (icmp_v4_t *)((u8*)ip + ipv4_hdr_len); + + u64 tmp = 0; + tmp = vnet_buffer(b0)->vcgn_uii.key.k.ipv4 = + clib_net_to_host_u32(ip->src_addr); + vnet_buffer(b0)->vcgn_uii.key.k.port = + clib_net_to_host_u16 (icmp->identifier); + + tmp |= ((u64)vnet_buffer(b0)->vcgn_uii.key.k.port) << 32; + + PLATFORM_CNAT_SET_RX_VRF(vnet_buffer(b0)->sw_if_index[VLIB_RX], + vnet_buffer(b0)->vcgn_uii.key.k.vrf, + CNAT_ICMP) + tmp |= ((u64)vnet_buffer(b0)->vcgn_uii.key.k.vrf) << 48; + + CNAT_V4_GET_HASH(tmp, bucket, CNAT_MAIN_HASH_MASK) + + prefetch_target = (u8 *)(&cnat_in2out_hash[bucket]); + vnet_buffer(b0)->vcgn_uii.bucket = bucket; + + /* Prefetch the hash bucket */ + CLIB_PREFETCH(prefetch_target, CLIB_CACHE_LINE_BYTES, LOAD); +} + +#define SPP_LOG2_CACHE_LINE_BYTES 6 +#define SPP_CACHE_LINE_BYTES (1 << SPP_LOG2_CACHE_LINE_BYTES) + +static inline void +stage2(vlib_main_t * vm, vlib_node_runtime_t * node, u32 buffer_index) +{ + vlib_buffer_t * b0 = vlib_get_buffer(vm, buffer_index); + uword prefetch_target0, prefetch_target1; + u32 bucket = vnet_buffer(b0)->vcgn_uii.bucket; + + /* read the hash bucket */ + u32 db_index = vnet_buffer(b0)->vcgn_uii.bucket + = cnat_in2out_hash[bucket].next; + + if (PREDICT_TRUE(db_index != EMPTY)) { + /* + * Prefetch database keys. We save space by not cache-line + * aligning the DB entries. We don't want to waste LSU + * bandwidth prefetching stuff we won't need. + */ + prefetch_target0 = (uword)(cnat_main_db + db_index); + CLIB_PREFETCH((void*)prefetch_target0, CLIB_CACHE_LINE_BYTES, LOAD); + /* Just beyond DB key #2 */ + prefetch_target1 = prefetch_target0 + + STRUCT_OFFSET_OF(cnat_main_db_entry_t, user_ports); + /* If the targets are in different lines, do the second prefetch */ + if (PREDICT_FALSE((prefetch_target0 & ~(SPP_CACHE_LINE_BYTES-1)) != + (prefetch_target1 & ~(SPP_CACHE_LINE_BYTES-1)))) { + CLIB_PREFETCH((void *)prefetch_target1, CLIB_CACHE_LINE_BYTES, LOAD); + } + } +} + +static inline void +stage3(vlib_main_t * vm, vlib_node_runtime_t * node, u32 buffer_index) +{ + cnat_main_db_entry_t *db; + vlib_buffer_t * b0 = vlib_get_buffer(vm, buffer_index); + u32 db_index = vnet_buffer(b0)->vcgn_uii.bucket; + + /* + * Note: if the search already failed (empty bucket), + * the answer is already in the pipeline context structure + */ + if (PREDICT_TRUE(db_index != EMPTY)) { + + /* + * Note: hash collisions suck. We can't easily prefetch around them. + * The first trip around the track will be fast. After that, maybe + * not so much... + */ + do { + db = cnat_main_db + db_index; + if (PREDICT_TRUE(db->in2out_key.key64 == + vnet_buffer(b0)->vcgn_uii.key.key64)) { + break; + } + db_index = db->in2out_hash.next; + } while (db_index != EMPTY); + + /* Stick the answer back into the pipeline context structure */ + vnet_buffer(b0)->vcgn_uii.bucket = db_index; + } +} + +static inline u32 last_stage (vlib_main_t *vm, vlib_node_runtime_t *node, + u32 bi) +{ + vlib_buffer_t *b0 = vlib_get_buffer (vm, bi); + u32 db_index = vnet_buffer(b0)->vcgn_uii.bucket; + spp_ctx_t *ctx = (spp_ctx_t *) &vnet_buffer(b0)->vcgn_uii; + int disposition = CNAT_V4_ICMP_Q_I2O_T; + int counter = CNAT_V4_ICMP_Q_I2O_T_PKT; + + ipv4_header *ip = (ipv4_header *)vlib_buffer_get_current(b0); + u8 ipv4_hdr_len = (ip->version_hdr_len_words & 0xf) << 2; + icmp_v4_t *icmp = (icmp_v4_t *)((u8*)ip + ipv4_hdr_len); + vlib_node_t *n = vlib_get_node (vm, cnat_ipv4_icmp_q_inside_input_node.index); + u32 node_counter_base_index = n->error_heap_index; + vlib_error_main_t * em = &vm->error_main; + cnat_session_entry_t *session_db = NULL; + cnat_main_db_entry_t *db = NULL; + cnat_key_t dest_info; + + if (PLATFORM_HANDLE_TTL_DECREMENT) { + if (PREDICT_FALSE(ip->ttl <= 1)) { + /* Try to generate ICMP error msg, as TTL is <= 1 */ + + if (icmpv4_generate_with_throttling + (ctx, ip, ctx->ru.rx.uidb_index)) { + + /* Generated ICMP */ + disposition = CNAT_V4_ICMP_Q_I2O_T; + counter = CNAT_V4_ICMP_Q_I2O_TTL_GEN; + } else { + /* Could not generated ICMP - drop the packet */ + disposition = CNAT_V4_ICMP_Q_I2O_D; + counter = CNAT_V4_ICMP_Q_I2O_TTL_DROP; + } + goto drop_pkt; + } + } + + if (PREDICT_TRUE(db_index != EMPTY)) { + db = cnat_main_db + db_index; + dest_info.k.port = 0; + dest_info.k.ipv4 = clib_net_to_host_u32(ip->dest_addr); + + if(PREDICT_TRUE(!PLATFORM_DBL_SUPPORT)) { + + /* No DBL support, so just update the destn and proceed */ + db->dst_ipv4 = dest_info.k.ipv4; + db->dst_port = dest_info.k.port; + goto update_pkt; + } + + if(PREDICT_FALSE(db->dst_ipv4 != dest_info.k.ipv4)) { + if(PREDICT_TRUE(db->nsessions == 1)) { + /* Handle one to 2 dest scenarion */ + dest_info.k.vrf = db->in2out_key.k.vrf; + session_db = cnat_handle_1to2_session(db, &dest_info); + + if(PREDICT_FALSE(session_db == NULL)) { + disposition = CNAT_V4_ICMP_Q_I2O_D; + counter = CNAT_V4_ICMP_Q_I2O_NO_SESSION_DROP; + goto drop_pkt; + } + } else if (PREDICT_FALSE(db->nsessions == 0)) { + /* Should be a static entry + * Note this session as the first session and log + */ + cnat_add_dest_n_log(db, &dest_info); + } else { /* Many translations exist already */ + dest_info.k.vrf = db->in2out_key.k.vrf; + /* If session already exists, + * cnat_create_session_db_entry will return the existing db + * else create a new db + * If could not create, return NULL + */ + session_db = cnat_create_session_db_entry(&dest_info, + db, TRUE); + + if(PREDICT_FALSE(session_db == NULL)) { + disposition = CNAT_V4_ICMP_Q_I2O_D; + counter = CNAT_V4_ICMP_Q_I2O_NO_SESSION_DROP; + goto drop_pkt; + } + } + } + +update_pkt: + + if (PREDICT_FALSE(icmp_debug_flag)) { + printf("\nDUMPING ICMP PKT BEFORE\n"); + print_icmp_pkt(ip); + } + + if (PLATFORM_HANDLE_TTL_DECREMENT) { + /* + * Decrement TTL and update IPv4 checksum + */ + ipv4_decr_ttl_n_calc_csum(ip); + } + + /* + * 1. update src ipv4 addr and src icmp identifier + * 2. update ipv4 checksum and icmp checksum + */ + swap_ip_src_icmp_id(ip, icmp, db, db->in2out_key.k.vrf); + + if (PREDICT_FALSE(icmp_debug_flag)) { + printf("\nDUMPING ICMP PKT AFTER\n"); + print_icmp_pkt(ip); + } + + /* + * update db counter, timer + */ + + if(PREDICT_FALSE(session_db != 0)) { + CNAT_DB_TIMEOUT_RST(session_db); + } else { + CNAT_DB_TIMEOUT_RST(db); + } + db->in2out_pkts++; + in2out_forwarding_count++; + + } else { + disposition = CNAT_V4_ICMP_Q_I2O_E; + counter = CNAT_V4_ICMP_Q_I2O_MISS_PKT; + } + +drop_pkt: + + em->counters[node_counter_base_index + counter] += 1; + return disposition; +} + +#include <vnet/pipeline.h> + +static uword cnat_ipv4_icmp_q_inside_input_node_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + return dispatch_pipeline (vm, node, frame); +} + + +VLIB_REGISTER_NODE (cnat_ipv4_icmp_q_inside_input_node) = { + .function = cnat_ipv4_icmp_q_inside_input_node_fn, + .name = "vcgn-v4-icmp-q-i2o", + .vector_size = sizeof (u32), + .type = VLIB_NODE_TYPE_INTERNAL, + + .n_errors = ARRAY_LEN(cnat_ipv4_icmp_q_inside_input_error_strings), + .error_strings = cnat_ipv4_icmp_q_inside_input_error_strings, + + .n_next_nodes = CNAT_V4_ICMP_Q_I2O_NEXT, + + /* edit / add dispositions here */ + .next_nodes = { + [CNAT_V4_ICMP_Q_I2O_E] = "vcgn-v4-icmp-q-i2o-e", + [CNAT_V4_ICMP_Q_I2O_T] = "ip4-input", + [CNAT_V4_ICMP_Q_I2O_D] = "error-drop", + }, +}; + +clib_error_t *cnat_ipv4_icmp_q_inside_input_init (vlib_main_t *vm) +{ + cnat_ipv4_icmp_q_inside_input_main_t * mp = &cnat_ipv4_icmp_q_inside_input_main; + + mp->vlib_main = vm; + mp->vnet_main = vnet_get_main(); + + return 0; +} + +VLIB_INIT_FUNCTION (cnat_ipv4_icmp_q_inside_input_init); diff --git a/plugins/vcgn-plugin/vcgn/cnat_ipv4_icmp_query_inside_input_exception.c b/plugins/vcgn-plugin/vcgn/cnat_ipv4_icmp_query_inside_input_exception.c new file mode 100644 index 00000000..9b5e280e --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_ipv4_icmp_query_inside_input_exception.c @@ -0,0 +1,235 @@ +/* + *--------------------------------------------------------------------------- + * cnat_ipv4_icmp_query_inside_input_exception.c - cnat_ipv4_icmp_query_inside_input_exception node pipeline stage functions + * + * Copyright (c) 2008-2014 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *--------------------------------------------------------------------------- + */ + +#include <vlib/vlib.h> +#include <vnet/vnet.h> +#include <vppinfra/error.h> +#include <vnet/buffer.h> + +#include "cnat_ipv4_icmp.h" + +#define foreach_cnat_ipv4_icmp_q_inside_input_exc_error \ +_(CNAT_V4_ICMP_Q_I2O_E_T_PKT, "v4 icmp query i2o-e transmit") \ +_(CNAT_V4_ICMP_Q_I2O_E_G_PKT, "v4 icmp query i2o-e gen icmp msg") \ +_(CNAT_V4_ICMP_Q_I2O_E_D_PKT, "v4 icmp query i2o-e pkt drop") \ +_(CNAT_V4_ICMP_Q_I2O_E_DC_PKT, "v4 icmp query i2o-e drop (no config)") \ +_(CNAT_V4_ICMP_Q_I2O_E_DR_PKT, "v4 icmp query i2o-e drop (not in run state)") \ +_(CNAT_V4_ICMP_Q_I2O_E_DD_PKT, "v4 icmp query i2o-e drop (no direct port)") \ +_(CNAT_V4_ICMP_Q_I2O_E_DA_PKT, "v4 icmp query i2o-e drop (no any port)") \ +_(CNAT_V4_ICMP_Q_I2O_E_DO_PKT, "v4 icmp query i2o-e drop (out of port limit)") \ +_(CNAT_V4_ICMP_Q_I2O_E_DS_PKT, "v4 icmp query i2o_e drop (out of session db)") + +typedef enum { +#define _(sym,str) sym, + foreach_cnat_ipv4_icmp_q_inside_input_exc_error +#undef _ + CNAT_IPV4_ICMP_Q_INSIDE_INPUT_EXCEPTIONS_N_ERROR, +} cnat_ipv4_icmp_q_inside_input_exc_error_t; + + +static char * cnat_ipv4_icmp_q_inside_input_exc_error_strings[] = { +#define _(sym,string) string, + foreach_cnat_ipv4_icmp_q_inside_input_exc_error +#undef _ +}; + +typedef struct { + u32 cached_next_index; + /* $$$$ add data here */ + + /* convenience variables */ + vlib_main_t * vlib_main; + vnet_main_t * vnet_main; +} cnat_ipv4_icmp_q_inside_input_exc_main_t; + +typedef enum { + CNAT_V4_ICMP_Q_E_I2O_T, + //CNAT_V4_ICMP_Q_E_I2O_GEN, + CNAT_V4_ICMP_Q_E_I2O_D, + CNAT_V4_ICMP_Q_E_I2O_NEXT, +} cnat_ipv4_icmp_q_inside_input_exc_next_t; + +#define CNAT_V4_ICMP_Q_E_I2O_GEN CNAT_V4_ICMP_Q_E_I2O_T + +cnat_ipv4_icmp_q_inside_input_exc_main_t cnat_ipv4_icmp_q_inside_input_exc_main; +vlib_node_registration_t cnat_ipv4_icmp_q_inside_input_exc_node; + +#define NSTAGES 2 + +/* + * Use the generic buffer metadata + first line of packet data prefetch + * stage function from <api/pipeline.h>. This is usually a Good Idea. + */ +#define stage0 generic_stage0 + +static inline u32 last_stage (vlib_main_t *vm, vlib_node_runtime_t *node, + u32 bi) +{ + vlib_buffer_t *b0 = vlib_get_buffer (vm, bi); + int disposition = CNAT_V4_ICMP_Q_E_I2O_T; + int counter = CNAT_V4_ICMP_Q_I2O_E_T_PKT; + + ipv4_header *ip = (ipv4_header *)vlib_buffer_get_current(b0); + u8 ipv4_hdr_len = (ip->version_hdr_len_words & 0xf) << 2; + icmp_v4_t *icmp = (icmp_v4_t *)((u8*)ip + ipv4_hdr_len); + vlib_node_t *n = vlib_get_node (vm, cnat_ipv4_icmp_q_inside_input_exc_node.index); + u32 node_counter_base_index = n->error_heap_index; + vlib_error_main_t * em = &vm->error_main; + + cnat_key_t dest_info; + cnat_gen_icmp_info info; + cnat_db_key_bucket_t ki; + cnat_main_db_entry_t *db = NULL; + + PLATFORM_CNAT_SET_RX_VRF(vnet_buffer(b0)->sw_if_index[VLIB_RX], + ki.k.k.vrf, CNAT_ICMP) + + ki.k.k.ipv4 = + clib_net_to_host_u32(ip->src_addr); + ki.k.k.port = + clib_net_to_host_u16(icmp->identifier); + + dest_info.k.port = 0; + dest_info.k.ipv4 = clib_net_to_host_u32(ip->dest_addr); + PLATFORM_CNAT_SET_RX_VRF(vnet_buffer(b0)->sw_if_index[VLIB_RX], + dest_info.k.vrf, CNAT_ICMP) + + db = cnat_get_main_db_entry_v2(&ki, PORT_SINGLE, PORT_TYPE_DYNAMIC, + &info, &dest_info); + if (PREDICT_TRUE(db != 0)) { + + if (PREDICT_FALSE(icmp_debug_flag)) { + printf("\nDUMPING ICMP PKT BEFORE\n"); + print_icmp_pkt(ip); + } + + if (PLATFORM_HANDLE_TTL_DECREMENT) { + /* + * Decrement TTL and update IPv4 checksum + */ + ipv4_decr_ttl_n_calc_csum(ip); + } + + /* + * step 6 do nat before fwd pkt + */ + swap_ip_src_icmp_id(ip, icmp, db, db->in2out_key.k.vrf); + + if (PREDICT_FALSE(icmp_debug_flag)) { + printf("\nDUMPING ICMP PKT AFTER\n"); + print_icmp_pkt(ip); + } + + /* + * update db for this pkt + */ + CNAT_DB_UPDATE_IN2OUT_TIMER + in2out_forwarding_count++; + + } else { + switch (info.error) { + case (CNAT_NO_VRF_RUN): + counter = CNAT_V4_ICMP_Q_I2O_E_DR_PKT; + break; + case (CNAT_OUT_LIMIT): + counter = CNAT_V4_ICMP_Q_I2O_E_DO_PKT; + break; + case (CNAT_NO_PORT_ANY): + case (CNAT_NO_POOL_ANY): + case (CNAT_BAD_INUSE_ANY): + case (CNAT_NOT_FOUND_ANY): + counter = CNAT_V4_ICMP_Q_I2O_E_DA_PKT; + break; + case (CNAT_INV_PORT_DIRECT): + case (CNAT_DEL_PORT_DIRECT): + case (CNAT_BAD_INUSE_DIRECT): + case (CNAT_NOT_FOUND_DIRECT): + counter = CNAT_V4_ICMP_Q_I2O_E_DD_PKT; + break; + case (CNAT_ERR_NO_SESSION_DB): + counter = CNAT_V4_ICMP_Q_I2O_E_DS_PKT; + break; + default: + counter = CNAT_V4_ICMP_Q_I2O_E_DC_PKT; + break; + } + /* + * send to icmp msg generate node + */ + if (info.gen_icmp_msg == CNAT_ICMP_MSG) { + #if 0 + u32 *fd = (u32*)ctx->feature_data; + fd[0] = info.svi_addr; + fd[1] = CNAT_ICMP_DEST_UNREACHABLE; + #endif + disposition = CNAT_V4_ICMP_Q_E_I2O_GEN; + counter = CNAT_V4_ICMP_Q_I2O_E_G_PKT; + } else { + disposition = CNAT_V4_ICMP_Q_E_I2O_D; + counter = CNAT_V4_ICMP_Q_I2O_E_D_PKT; + } + DEBUG_I2O_DROP(CNAT_DEBUG_DROP_ICMP) + } + + em->counters[node_counter_base_index + counter] += 1; + + return disposition; +} + +#include <vnet/pipeline.h> + +static uword cnat_ipv4_icmp_q_inside_input_exc_node_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + return dispatch_pipeline (vm, node, frame); +} + +VLIB_REGISTER_NODE (cnat_ipv4_icmp_q_inside_input_exc_node) = { + .function = cnat_ipv4_icmp_q_inside_input_exc_node_fn, + .name = "vcgn-v4-icmp-q-i2o-e", + .vector_size = sizeof (u32), + .type = VLIB_NODE_TYPE_INTERNAL, + + .n_errors = ARRAY_LEN(cnat_ipv4_icmp_q_inside_input_exc_error_strings), + .error_strings = cnat_ipv4_icmp_q_inside_input_exc_error_strings, + + .n_next_nodes = CNAT_V4_ICMP_Q_E_I2O_NEXT, + + /* edit / add dispositions here */ + .next_nodes = { + //[CNAT_V4_ICMP_Q_E_I2O_GEN] = "icmp_msg_gen", /* Currently it will go + //to ip4-input node. We have to port icmp msg generator node */ + [CNAT_V4_ICMP_Q_E_I2O_T] = "ip4-input", + [CNAT_V4_ICMP_Q_E_I2O_D] = "error-drop", + }, +}; + + +clib_error_t *cnat_ipv4_icmp_q_inside_input_exc_init (vlib_main_t *vm) +{ + cnat_ipv4_icmp_q_inside_input_exc_main_t * mp = &cnat_ipv4_icmp_q_inside_input_exc_main; + + mp->vlib_main = vm; + mp->vnet_main = vnet_get_main(); + + return 0; +} + +VLIB_INIT_FUNCTION (cnat_ipv4_icmp_q_inside_input_exc_init); diff --git a/plugins/vcgn-plugin/vcgn/cnat_ipv4_icmp_query_outside_input.c b/plugins/vcgn-plugin/vcgn/cnat_ipv4_icmp_query_outside_input.c new file mode 100644 index 00000000..2c05e0b4 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_ipv4_icmp_query_outside_input.c @@ -0,0 +1,381 @@ +/* + *--------------------------------------------------------------------------- + * cnat_ipv4_icmp_query_outside_input.c - cnat_ipv4_icmp_query_outside_input node pipeline stage functions + * + * + * Copyright (c) 2008-2014 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *--------------------------------------------------------------------------- + */ +#include <vlib/vlib.h> +#include <vnet/vnet.h> +#include <vppinfra/error.h> +#include <vnet/buffer.h> + +#include "cnat_ipv4_icmp.h" + +#define foreach_cnat_ipv4_icmp_q_outside_input_error \ +_(CNAT_V4_ICMP_Q_O2I_T_PKT, "cnat v4 icmp_q o2i packet transmit") \ +_(CNAT_V4_ICMP_Q_O2I_MISS_PKT, "cnat v4 icmp_q o2i drop") \ +_(CNAT_V4_ICMP_Q_O2I_TTL_GEN, "cnat v4 icmp_q o2i ttl generate") \ +_(CNAT_V4_ICMP_Q_O2I_TTL_DROP, "cnat v4 icmp_q o2i ttl drop") \ +_(CNAT_V4_ICMP_Q_O2I_NO_SESSION_DROP, "cnat v4 icmp_q o2i no session drop") + +typedef enum { +#define _(sym,str) sym, + foreach_cnat_ipv4_icmp_q_outside_input_error +#undef _ + CNAT_IPV4_ICMP_Q_OUTSIDE_INPUT_N_ERROR, +} cnat_ipv4_icmp_q_outside_input_t; + +static char * cnat_ipv4_icmp_q_outside_input_error_strings[] = { +#define _(sym,string) string, + foreach_cnat_ipv4_icmp_q_outside_input_error +#undef _ +}; + +typedef struct { + u32 cached_next_index; + /* $$$$ add data here */ + + /* convenience variables */ + vlib_main_t * vlib_main; + vnet_main_t * vnet_main; +} cnat_ipv4_icmp_q_outside_input_main_t; + +typedef enum { + CNAT_V4_ICMP_Q_O2I_T, + CNAT_V4_ICMP_Q_O2I_D, + CNAT_V4_ICMP_Q_O2I_NEXT, +} cnat_ipv4_icmp_q_outside_input_next_t; + +cnat_ipv4_icmp_q_outside_input_main_t cnat_ipv4_icmp_q_outside_input_main; +vlib_node_registration_t cnat_ipv4_icmp_q_outside_input_node; + +#define NSTAGES 5 + +inline void swap_ip_dst_icmp_id(ipv4_header *ip, + icmp_v4_t *icmp, + cnat_main_db_entry_t *db, u16 vrf) +{ +#if 0 + u32 postmap_ip; + u8 direction; + u32 old_ip; + u32 old_postmap_ip; + + if(is_static_dest_nat_enabled(vrf) == CNAT_SUCCESS) { + direction = 1; + if(cnat_static_dest_db_get_translation(ip->src_addr, &postmap_ip, vrf, direction) == CNAT_SUCCESS) { + CNAT_UPDATE_L3_CHECKSUM_DECLARE + + old_ip = spp_net_to_host_byte_order_32(&(ip->src_addr)); + old_postmap_ip = spp_net_to_host_byte_order_32(&postmap_ip); + + CNAT_UPDATE_L3_CHECKSUM(((u16)(old_ip & 0xFFFF)), + ((u16)(old_ip >> 16)), + (spp_net_to_host_byte_order_16(&(ip->checksum))), + ((u16)(old_postmap_ip & 0xFFFF)), + ((u16)(old_postmap_ip >> 16))) + ip->checksum = + spp_host_to_net_byte_order_16(new_l3_c); + ip->src_addr = postmap_ip; + } + } +#endif /* if 0 */ + /* + * declare variable + */ + CNAT_UPDATE_L3_L4_CHECKSUM_DECLARE + /* + * calculate checksum + */ + CNAT_UPDATE_L3_ICMP_CHECKSUM(((u16)(db->out2in_key.k.ipv4)), + ((u16)(db->out2in_key.k.ipv4 >> 16)), + (db->out2in_key.k.port), + (clib_net_to_host_u16(ip->checksum)), + (clib_net_to_host_u16(icmp->checksum)), + ((u16)(db->in2out_key.k.ipv4)), + ((u16)(db->in2out_key.k.ipv4 >> 16)), + (db->in2out_key.k.port)) + //set ip header + ip->dest_addr = + clib_host_to_net_u32(db->in2out_key.k.ipv4); + ip->checksum = + clib_host_to_net_u16(new_l3_c); + + //set icmp header + icmp->identifier = + clib_host_to_net_u16(db->in2out_key.k.port); + icmp->checksum = + clib_host_to_net_u16(new_l4_c); +} + +/* + * Use the generic buffer metadata + first line of packet data prefetch + * stage function from <api/pipeline.h>. This is usually a Good Idea. + */ +#define stage0 generic_stage0 + +static inline void +stage1(vlib_main_t * vm, vlib_node_runtime_t * node, u32 buffer_index) +{ + u64 a, b, c; + u32 bucket; + u8 *prefetch_target; + + vlib_buffer_t * b0 = vlib_get_buffer (vm, buffer_index); + ipv4_header *ip = vlib_buffer_get_current (b0); + u8 ipv4_hdr_len = (ip->version_hdr_len_words & 0xf) << 2; + icmp_v4_t *icmp = (icmp_v4_t *)((u8*)ip + ipv4_hdr_len); + + u64 tmp = 0; + tmp = vnet_buffer(b0)->vcgn_uii.key.k.ipv4 = + clib_net_to_host_u32(ip->dest_addr); + vnet_buffer(b0)->vcgn_uii.key.k.port = + clib_net_to_host_u16 (icmp->identifier); + + tmp |= ((u64)vnet_buffer(b0)->vcgn_uii.key.k.port) << 32; + + PLATFORM_CNAT_SET_RX_VRF(vnet_buffer(b0)->sw_if_index[VLIB_RX], + vnet_buffer(b0)->vcgn_uii.key.k.vrf, + CNAT_ICMP) + tmp |= ((u64)vnet_buffer(b0)->vcgn_uii.key.k.vrf) << 48; + + CNAT_V4_GET_HASH(tmp, bucket, CNAT_MAIN_HASH_MASK) + + prefetch_target = (u8 *)(&cnat_out2in_hash[bucket]); + vnet_buffer(b0)->vcgn_uii.bucket = bucket; + + /* Prefetch the hash bucket */ + CLIB_PREFETCH(prefetch_target, CLIB_CACHE_LINE_BYTES, LOAD); +} + +#define SPP_LOG2_CACHE_LINE_BYTES 6 +#define SPP_CACHE_LINE_BYTES (1 << SPP_LOG2_CACHE_LINE_BYTES) + +static inline void +stage2(vlib_main_t * vm, vlib_node_runtime_t * node, u32 buffer_index) +{ + vlib_buffer_t * b0 = vlib_get_buffer(vm, buffer_index); + uword prefetch_target0, prefetch_target1; + u32 bucket = vnet_buffer(b0)->vcgn_uii.bucket; + + /* read the hash bucket */ + u32 db_index = vnet_buffer(b0)->vcgn_uii.bucket + = cnat_out2in_hash[bucket].next; + + if (PREDICT_TRUE(db_index != EMPTY)) { + /* + * Prefetch database keys. We save space by not cache-line + * aligning the DB entries. We don't want to waste LSU + * bandwidth prefetching stuff we won't need. + */ + prefetch_target0 = (uword)(cnat_main_db + db_index); + CLIB_PREFETCH((void*)prefetch_target0, CLIB_CACHE_LINE_BYTES, LOAD); + /* Just beyond DB key #2 */ + prefetch_target1 = prefetch_target0 + + STRUCT_OFFSET_OF(cnat_main_db_entry_t, user_ports); + /* If the targets are in different lines, do the second prefetch */ + if (PREDICT_FALSE((prefetch_target0 & ~(SPP_CACHE_LINE_BYTES-1)) != + (prefetch_target1 & ~(SPP_CACHE_LINE_BYTES-1)))) { + CLIB_PREFETCH((void *)prefetch_target1, CLIB_CACHE_LINE_BYTES, LOAD); + } + } +} + +static inline void +stage3(vlib_main_t * vm, vlib_node_runtime_t * node, u32 buffer_index) +{ + cnat_main_db_entry_t *db; + vlib_buffer_t * b0 = vlib_get_buffer(vm, buffer_index); + u32 db_index = vnet_buffer(b0)->vcgn_uii.bucket; + + /* + * Note: if the search already failed (empty bucket), + * the answer is already in the pipeline context structure + */ + if (PREDICT_TRUE(db_index != EMPTY)) { + + /* + * Note: hash collisions suck. We can't easily prefetch around them. + * The first trip around the track will be fast. After that, maybe + * not so much... + */ + do { + db = cnat_main_db + db_index; + if (PREDICT_TRUE(db->out2in_key.key64 == + vnet_buffer(b0)->vcgn_uii.key.key64)) { + break; + } + db_index = db->out2in_hash.next; + } while (db_index != EMPTY); + + /* Stick the answer back into the pipeline context structure */ + vnet_buffer(b0)->vcgn_uii.bucket = db_index; + } +} + + +static inline u32 last_stage (vlib_main_t *vm, vlib_node_runtime_t *node, + u32 bi) +{ + + vlib_buffer_t *b0 = vlib_get_buffer (vm, bi); + u32 db_index = vnet_buffer(b0)->vcgn_uii.bucket; + int disposition = CNAT_V4_ICMP_Q_O2I_T; + int counter = CNAT_V4_ICMP_Q_O2I_T_PKT; + + ipv4_header *ip = (ipv4_header *)vlib_buffer_get_current(b0); + u8 ipv4_hdr_len = (ip->version_hdr_len_words & 0xf) << 2; + icmp_v4_t *icmp = (icmp_v4_t *)((u8*)ip + ipv4_hdr_len); + vlib_node_t *n = vlib_get_node (vm, cnat_ipv4_icmp_q_outside_input_node.index); + u32 node_counter_base_index = n->error_heap_index; + vlib_error_main_t * em = &vm->error_main; + cnat_session_entry_t *session_db = NULL; + cnat_main_db_entry_t *db = NULL; + cnat_key_t dest_info; + cnat_vrfmap_t * vrf_map_p __attribute__((unused)) = NULL; + u32 vrf_index __attribute__((unused)) = 0; + + if (PREDICT_TRUE(db_index != EMPTY)) { + + db = cnat_main_db + db_index; + dest_info.k.port = 0; + dest_info.k.ipv4 = clib_net_to_host_u32(ip->src_addr); + + if (PREDICT_FALSE(icmp_debug_flag)) { + printf("\nDUMPING ICMP PKT BEFORE\n"); + print_icmp_pkt(ip); + } + + vrf_map_p = cnat_map_by_vrf + db->vrfmap_index; + vrf_index = (db->in2out_key.k.vrf & CNAT_VRF_MASK); + + if(PREDICT_TRUE(!PLATFORM_DBL_SUPPORT)) { + + /* No DBL support, so just update the destn and proceed */ + db->dst_ipv4 = dest_info.k.ipv4; + db->dst_port = dest_info.k.port; + goto update_pkt; + } + + if(PREDICT_FALSE(db->dst_ipv4 != dest_info.k.ipv4)) { + + if(PREDICT_TRUE(db->nsessions == 1)) { + /* Handle one to 2 dest scenarion */ + dest_info.k.vrf = db->in2out_key.k.vrf; + session_db = cnat_handle_1to2_session(db, &dest_info); + + if(PREDICT_FALSE(session_db == NULL)) { + disposition = CNAT_V4_ICMP_Q_O2I_D; + counter = CNAT_V4_ICMP_Q_O2I_NO_SESSION_DROP; + goto drop_pkt; + } + } else if (PREDICT_FALSE(db->nsessions == 0)) { + /* Should be a static entry + * Note this session as the first session and log + */ + cnat_add_dest_n_log(db, &dest_info); + } else { /* Many translations exist already */ + dest_info.k.vrf = db->in2out_key.k.vrf; + /* If session already exists, + * cnat_create_session_db_entry will return the existing db + * else create a new db + * If could not create, return NULL + */ + session_db = cnat_create_session_db_entry(&dest_info, + db, TRUE); + + if(PREDICT_FALSE(session_db == NULL)) { + disposition = CNAT_V4_ICMP_Q_O2I_D; + counter = CNAT_V4_ICMP_Q_O2I_NO_SESSION_DROP; + goto drop_pkt; + } + } + } + +update_pkt: + + if (PLATFORM_HANDLE_TTL_DECREMENT) { + /* + * Decrement TTL and update IPv4 checksum + */ + ipv4_decr_ttl_n_calc_csum(ip); + } + + /* + * 1. update dest ipv4 addr and icmp id + * 2. update ipv4 checksum and icmp checksum + */ + swap_ip_dst_icmp_id(ip, icmp, db, db->in2out_key.k.vrf); + + if (PREDICT_FALSE(icmp_debug_flag)) { + printf("\nDUMPING ICMP PKT AFTER\n"); + print_icmp_pkt(ip); + } + + db->out2in_pkts++; + + //nat44_dslite_global_stats[dslite_flag].out2in_forwarding_count++; + + } else { + disposition = CNAT_V4_ICMP_Q_O2I_D; + counter = CNAT_V4_ICMP_Q_O2I_MISS_PKT; + } + +drop_pkt: + em->counters[node_counter_base_index + counter] += 1; + return disposition; + +} + +#include <vnet/pipeline.h> + +static uword cnat_ipv4_icmp_q_outside_input_node_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + return dispatch_pipeline (vm, node, frame); +} + + +VLIB_REGISTER_NODE (cnat_ipv4_icmp_q_outside_input_node) = { + .function = cnat_ipv4_icmp_q_outside_input_node_fn, + .name = "vcgn-v4-icmp-q-o2i", + .vector_size = sizeof (u32), + .type = VLIB_NODE_TYPE_INTERNAL, + + .n_errors = ARRAY_LEN(cnat_ipv4_icmp_q_outside_input_error_strings), + .error_strings = cnat_ipv4_icmp_q_outside_input_error_strings, + + .n_next_nodes = CNAT_V4_ICMP_Q_O2I_NEXT, + + /* edit / add dispositions here */ + .next_nodes = { + [CNAT_V4_ICMP_Q_O2I_T] = "ip4-input", + [CNAT_V4_ICMP_Q_O2I_D] = "error-drop", + }, +}; + +clib_error_t *cnat_ipv4_icmp_q_outside_input_init (vlib_main_t *vm) +{ + cnat_ipv4_icmp_q_outside_input_main_t * mp = &cnat_ipv4_icmp_q_outside_input_main; + + mp->vlib_main = vm; + mp->vnet_main = vnet_get_main(); + + return 0; +} + +VLIB_INIT_FUNCTION (cnat_ipv4_icmp_q_outside_input_init); diff --git a/plugins/vcgn-plugin/vcgn/cnat_ipv4_tcp_inside_input.c b/plugins/vcgn-plugin/vcgn/cnat_ipv4_tcp_inside_input.c new file mode 100644 index 00000000..5bea7073 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_ipv4_tcp_inside_input.c @@ -0,0 +1,424 @@ +/* + *--------------------------------------------------------------------------- + * cnat_ipv4_tcp_inside_input.c - cnat_ipv4_tcp_inside_input node pipeline + * stage functions + * + * + * Copyright (c) 2008-2014 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *--------------------------------------------------------------------------- + */ + +#include <vlib/vlib.h> +#include <vnet/vnet.h> +#include <vppinfra/error.h> +#include <vnet/buffer.h> + +#include "cnat_db.h" +#include "tcp_header_definitions.h" +#include "cnat_config.h" +#include "cnat_global.h" +#include "cnat_v4_functions.h" + +#define foreach_cnat_ipv4_tcp_inside_input_error \ +_(CNAT_V4_TCP_I2O_PKT_IN, "tcp i2o packets received") \ +_(CNAT_V4_TCP_I2O_PKT_T, "tcp i2o packets natted") \ +_(CNAT_V4_TCP_I2O_EXCEPTION, "packets to tcp i2o exception") \ +_(CNAT_V4_TCP_I2O_TTL_GEN, "generated TTL expiry ICMP packets") \ +_(CNAT_V4_TCP_I2O_TTL_GEN_DROP, "could not generate TTL expiry ICMP packets") \ +_(CNAT_V4_TCP_I2O_SESSION_DROP, "could not generate session") \ +_(CNAT_V4_UDP_I2O_FRAG_DROP, "non-first fragment drop") + +typedef enum { +#define _(sym,str) sym, + foreach_cnat_ipv4_tcp_inside_input_error +#undef _ + CNAT_IPV4_TCP_INSIDE_INPUT_N_ERROR, +} cnat_ipv4_tcp_inside_input_t; + +static char * cnat_ipv4_tcp_inside_input_error_strings[] = { +#define _(sym,string) string, + foreach_cnat_ipv4_tcp_inside_input_error +#undef _ +}; + +typedef struct { + u32 cached_next_index; + /* $$$$ add data here */ + + /* convenience variables */ + vlib_main_t * vlib_main; + vnet_main_t * vnet_main; +} cnat_ipv4_tcp_inside_input_main_t; + +typedef enum { + CNAT_V4_TCP_I2O_E, + CNAT_V4_TCP_I2O_T, + CNAT_V4_TCP_I2O_D, + CNAT_V4_TCP_I2O_NEXT, +} cnat_ipv4_tcp_inside_input_next_t; + +#define CNAT_REWRITE_OUTPUT CNAT_V4_TCP_I2O_T +#define CNAT_V4_ICMP_GEN CNAT_V4_TCP_I2O_D + +//#define CNAT_V4_TCP_I2O_E CNAT_V4_TCP_I2O_D //remove it once exception node is created +cnat_ipv4_tcp_inside_input_main_t cnat_ipv4_tcp_inside_input_main; +vlib_node_registration_t cnat_ipv4_tcp_inside_input_node; + +#define NSTAGES 6 + +/* + * Use the generic buffer metadata + first line of packet data prefetch + * stage function from <api/pipeline.h>. This is usually a Good Idea. + */ +#define stage0 generic_stage0 + + +static inline void +stage1(vlib_main_t * vm, vlib_node_runtime_t * node, u32 buffer_index) +{ + u64 a, b, c; + u32 bucket; + u8 *prefetch_target; + //cnat_feature_data_t *fd = (cnat_feature_data_t *)ctx->feature_data; + + + vlib_buffer_t * b0 = vlib_get_buffer (vm, buffer_index); + ipv4_header *ip = vlib_buffer_get_current (b0); + u8 ipv4_hdr_len = (ip->version_hdr_len_words & 0xf) << 2; + tcp_hdr_type *tcp = (tcp_hdr_type *)((u8*)ip + ipv4_hdr_len); + + u64 tmp = 0; + tmp = vnet_buffer(b0)->vcgn_uii.key.k.ipv4 = + clib_net_to_host_u32(ip->src_addr); + vnet_buffer(b0)->vcgn_uii.key.k.port = + clib_net_to_host_u16 (tcp->src_port); + + tmp |= ((u64)vnet_buffer(b0)->vcgn_uii.key.k.port) << 32; + + PLATFORM_CNAT_SET_RX_VRF(vnet_buffer(b0)->sw_if_index[VLIB_RX], + vnet_buffer(b0)->vcgn_uii.key.k.vrf, + CNAT_TCP) + tmp |= ((u64)vnet_buffer(b0)->vcgn_uii.key.k.vrf) << 48; + + CNAT_V4_GET_HASH(tmp, bucket, CNAT_MAIN_HASH_MASK) + + prefetch_target = (u8 *)(&cnat_in2out_hash[bucket]); + vnet_buffer(b0)->vcgn_uii.bucket = bucket; + + /* Prefetch the hash bucket */ + CLIB_PREFETCH(prefetch_target, CLIB_CACHE_LINE_BYTES, LOAD); +} + +static inline void +stage2(vlib_main_t * vm, vlib_node_runtime_t * node, u32 buffer_index) +{ /* nothing */ } + + +#define SPP_LOG2_CACHE_LINE_BYTES 6 +#define SPP_CACHE_LINE_BYTES (1 << SPP_LOG2_CACHE_LINE_BYTES) + +static inline void +stage3(vlib_main_t * vm, vlib_node_runtime_t * node, u32 buffer_index) +{ + vlib_buffer_t * b0 = vlib_get_buffer(vm, buffer_index); + uword prefetch_target0, prefetch_target1; + u32 bucket = vnet_buffer(b0)->vcgn_uii.bucket; + + /* read the hash bucket */ + u32 db_index = vnet_buffer(b0)->vcgn_uii.bucket + = cnat_in2out_hash[bucket].next; + + if (PREDICT_TRUE(db_index != EMPTY)) { + /* + * Prefetch database keys. We save space by not cache-line + * aligning the DB entries. We don't want to waste LSU + * bandwidth prefetching stuff we won't need. + */ + prefetch_target0 = (uword)(cnat_main_db + db_index); + CLIB_PREFETCH((void*)prefetch_target0, CLIB_CACHE_LINE_BYTES, LOAD); + /* Just beyond DB key #2 */ + prefetch_target1 = prefetch_target0 + + STRUCT_OFFSET_OF(cnat_main_db_entry_t, user_ports); + /* If the targets are in different lines, do the second prefetch */ + if (PREDICT_FALSE((prefetch_target0 & ~(SPP_CACHE_LINE_BYTES-1)) != + (prefetch_target1 & ~(SPP_CACHE_LINE_BYTES-1)))) { + CLIB_PREFETCH((void *)prefetch_target1, CLIB_CACHE_LINE_BYTES, LOAD); + } + } +} + +static inline void +stage4(vlib_main_t * vm, vlib_node_runtime_t * node, u32 buffer_index) +{ + cnat_main_db_entry_t *db; + vlib_buffer_t * b0 = vlib_get_buffer(vm, buffer_index); + u32 db_index = vnet_buffer(b0)->vcgn_uii.bucket; + + /* + * Note: if the search already failed (empty bucket), + * the answer is already in the pipeline context structure + */ + if (PREDICT_TRUE(db_index != EMPTY)) { + + /* + * Note: hash collisions suck. We can't easily prefetch around them. + * The first trip around the track will be fast. After that, maybe + * not so much... + */ + do { + db = cnat_main_db + db_index; + if (PREDICT_TRUE(db->in2out_key.key64 == + vnet_buffer(b0)->vcgn_uii.key.key64)) { + break; + } + db_index = db->in2out_hash.next; + } while (db_index != EMPTY); + + /* Stick the answer back into the pipeline context structure */ + vnet_buffer(b0)->vcgn_uii.bucket = db_index; + } +} + + +static inline u32 last_stage (vlib_main_t *vm, vlib_node_runtime_t *node, + u32 bi) +{ + vlib_buffer_t *b0 = vlib_get_buffer (vm, bi); + u32 db_index = vnet_buffer(b0)->vcgn_uii.bucket; + spp_ctx_t *ctx = (spp_ctx_t *) &vnet_buffer(b0)->vcgn_uii; + int disposition = CNAT_V4_TCP_I2O_T; + int counter = CNAT_V4_TCP_I2O_PKT_T; + + ipv4_header *ip = (ipv4_header *)vlib_buffer_get_current(b0); + u8 ipv4_hdr_len = (ip->version_hdr_len_words & 0xf) << 2; + tcp_hdr_type *tcp = (tcp_hdr_type *)((u8*)ip + ipv4_hdr_len); + vlib_node_t *n = vlib_get_node (vm, cnat_ipv4_tcp_inside_input_node.index); + u32 node_counter_base_index = n->error_heap_index; + vlib_error_main_t * em = &vm->error_main; + cnat_session_entry_t *session_db = NULL; + cnat_main_db_entry_t *db = NULL; + cnat_key_t dest_info; + u32 window; + u8 scale; + + + INCREMENT_NODE_COUNTER(CNAT_V4_TCP_I2O_PKT_IN); + + if (PLATFORM_HANDLE_TTL_DECREMENT) { + if (PREDICT_FALSE(ip->ttl <= 1)) { + /* Try to generate ICMP error msg, as TTL is <= 1 */ + + if (icmpv4_generate_with_throttling + (ctx, ip, ctx->ru.rx.uidb_index)) { + + /* Generated ICMP */ + disposition = CNAT_REWRITE_OUTPUT; + counter = CNAT_V4_TCP_I2O_TTL_GEN; + } else { + /* Could not generated ICMP - drop the packet */ + disposition = CNAT_V4_TCP_I2O_D; + counter = CNAT_V4_TCP_I2O_TTL_GEN_DROP; + } + goto drop_pkt; + } + } + + if (PREDICT_FALSE(db_index == EMPTY)) { + /* Deleted fragment code from here */ + disposition = CNAT_V4_TCP_I2O_E; + counter = CNAT_V4_TCP_I2O_EXCEPTION; + } else { + db = cnat_main_db + db_index; + + /* Handle destination sessions */ + dest_info.k.port = clib_net_to_host_u16(tcp->dest_port); + dest_info.k.ipv4 = clib_net_to_host_u32(ip->dest_addr); + + if(PREDICT_TRUE(!PLATFORM_DBL_SUPPORT)) { + + /* No DBL support, so just update the destn and proceed */ + db->dst_ipv4 = dest_info.k.ipv4; + db->dst_port = dest_info.k.port; + goto update_pkt; + } + + if(PREDICT_FALSE(db->dst_ipv4 != dest_info.k.ipv4 || + db->dst_port != dest_info.k.port)) { + if(PREDICT_TRUE(db->nsessions == 0)) { + /* Should be a static entry + * Note this session as the first session and log + */ + cnat_add_dest_n_log(db, &dest_info); + } else if(PREDICT_FALSE(db->nsessions == 1)) { + /* Destn is not same as in main db. Multiple session + * scenario + */ + dest_info.k.vrf = db->in2out_key.k.vrf; + session_db = cnat_handle_1to2_session(db, &dest_info); + if(PREDICT_FALSE(session_db == NULL)) { + disposition = CNAT_V4_TCP_I2O_D; + counter = CNAT_V4_TCP_I2O_SESSION_DROP; + goto drop_pkt; + } + } else { /* There are already multiple destinations */ + dest_info.k.vrf = db->in2out_key.k.vrf; + /* If session already exists, + * cnat_create_session_db_entry will return the existing db + * else create a new db + * If could not create, return NULL + */ + session_db = cnat_create_session_db_entry(&dest_info, + db, TRUE); + if(PREDICT_FALSE(session_db == NULL)) { + disposition = CNAT_V4_TCP_I2O_D; + counter = CNAT_V4_TCP_I2O_SESSION_DROP; + goto drop_pkt; + } + } + if(PREDICT_TRUE(session_db != 0)) { + /* Have to repeat the window size check for new destinations */ + window = (u32)clib_net_to_host_u16(tcp->window_size); + window = window << session_db->scale; + if(PREDICT_TRUE(!session_db->window)) { + calculate_window_scale(tcp, &scale); + session_db->scale = scale; + session_db->window = window; + } else if (PREDICT_FALSE(session_db->window < + window)) { + /* Update the db entry with window option from packet */ + session_db->window = window; + } else { + /* Do nothing */ + } + session_db->tcp_seq_num = clib_net_to_host_u32(tcp->seq_num); + session_db->ack_no = clib_net_to_host_u32(tcp->ack_num); +#if DEBUG > 1 + printf("\n In2out SDB stages seq no = %u," + " ack no = %u, window = %u\n", + session_db->tcp_seq_num, + session_db->ack_no, + session_db->window); +#endif + + } + } else { + //Update the seq no and ack no for subsequent communication + //after connection establishment + //No need to update window here. Window is already updated + //during connection establishment + window = (u32)clib_net_to_host_u16(tcp->window_size); + window = window << db->scale; + if(PREDICT_FALSE(!ALG_ENABLED_DB(db))) { + //This check is done since proto_data is part of union in main + //db entry + db->proto_data.tcp_seq_chk.seq_no = + clib_net_to_host_u32(tcp->seq_num); + db->proto_data.tcp_seq_chk.ack_no = + clib_net_to_host_u32(tcp->ack_num); + } + if (PREDICT_FALSE(db->diff_window < window)) { + /* Update the db entry with window option from packet */ + db->diff_window = window; + } +#if DEBUG > 1 + printf("\n In2out MainDB seq no = %u," + "\n ack no = %u\n", + db->proto_data.tcp_seq_chk.seq_no, + db->proto_data.tcp_seq_chk.ack_no); + printf("\n In2out MAINDB window = %u\n", + db->diff_window); +#endif + } +update_pkt: + + counter = CNAT_V4_TCP_I2O_PKT_T; + disposition = CNAT_V4_TCP_I2O_T; + + /* NO FRAGMENT & ALG HANDLING. DELETING THE CODE */ + + if (PLATFORM_HANDLE_TTL_DECREMENT) { + /* + * Decrement TTL and update IPv4 checksum + */ + ipv4_decr_ttl_n_calc_csum(ip); + } + + tcp_in2out_nat_mss_n_checksum(ip, + tcp, + db->out2in_key.k.ipv4, + db->out2in_key.k.port, + db + /*, db->in2out_key.k.vrf */); + + /* update transaltion counters */ + db->in2out_pkts++; + in2out_forwarding_count++; + + /* update the timer for good mode, or evil mode dst_ip match */ + + if(PREDICT_FALSE(session_db != NULL)) { + V4_TCP_UPDATE_SESSION_DB_FLAG(session_db, tcp); + CNAT_DB_TIMEOUT_RST(session_db); + } else { + V4_TCP_UPDATE_SESSION_FLAG(db, tcp); + CNAT_DB_TIMEOUT_RST(db); + } + } + +drop_pkt: + + em->counters[node_counter_base_index + counter] += 1; + return disposition; +} + +#include <vnet/pipeline.h> + +static uword cnat_ipv4_tcp_inside_input_node_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + return dispatch_pipeline (vm, node, frame); +} + + +VLIB_REGISTER_NODE (cnat_ipv4_tcp_inside_input_node) = { + .function = cnat_ipv4_tcp_inside_input_node_fn, + .name = "vcgn-v4-tcp-i2o", + .vector_size = sizeof (u32), + .type = VLIB_NODE_TYPE_INTERNAL, + + .n_errors = ARRAY_LEN(cnat_ipv4_tcp_inside_input_error_strings), + .error_strings = cnat_ipv4_tcp_inside_input_error_strings, + + .n_next_nodes = CNAT_V4_TCP_I2O_NEXT, + + /* edit / add dispositions here */ + .next_nodes = { + [CNAT_V4_TCP_I2O_E] = "vcgn-v4-tcp-i2o-e", + [CNAT_V4_TCP_I2O_T] = "ip4-input", + [CNAT_V4_TCP_I2O_D] = "error-drop", + }, +}; + +clib_error_t *cnat_ipv4_tcp_inside_input_init (vlib_main_t *vm) +{ + cnat_ipv4_tcp_inside_input_main_t * mp = &cnat_ipv4_tcp_inside_input_main; + + mp->vlib_main = vm; + mp->vnet_main = vnet_get_main(); + + return 0; +} + +VLIB_INIT_FUNCTION (cnat_ipv4_tcp_inside_input_init); diff --git a/plugins/vcgn-plugin/vcgn/cnat_ipv4_tcp_inside_input_exceptions.c b/plugins/vcgn-plugin/vcgn/cnat_ipv4_tcp_inside_input_exceptions.c new file mode 100644 index 00000000..bc1bebb0 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_ipv4_tcp_inside_input_exceptions.c @@ -0,0 +1,314 @@ +/* + *--------------------------------------------------------------------------- + * cnat_ipv4_tcp_inside_input_exceptions.c - + * cnat_ipv4_tcp_inside_input_exceptions node pipeline stage functions + * + * + * Copyright (c) 2008-2014 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *--------------------------------------------------------------------------- + */ + +#include <vlib/vlib.h> +#include <vnet/vnet.h> +#include <vppinfra/error.h> +#include <vnet/buffer.h> + +#include "cnat_db.h" +#include "tcp_header_definitions.h" +#include "cnat_config.h" +#include "cnat_global.h" +#include "cnat_v4_functions.h" + + +#define foreach_cnat_ipv4_tcp_inside_input_exc_error \ +_(CNAT_V4_TCP_I2O_E_T_PKT, "v4 tcp i2o-e transmit natted pkt") \ +_(CNAT_V4_TCP_I2O_E_D_NON_SYN_PKT, "v4 tcp i2o-e non syn drop") \ +_(CNAT_V4_TCP_I2O_E_D_INVALID_PKT, "v4 tcp i2o-e invalid pkt drop") \ +_(CNAT_V4_TCP_I2O_E_DROP, "v4 tcp i2o-e drop") \ +_(CNAT_V4_TCP_I2O_E_GEN_ICMP, "v4 tcp i2o-e gen icmp msg") \ +_(CNAT_V4_TCP_I2O_E_D_NO_SESSION, "v4 tcp i2o-e no session db entry drop") + +typedef enum { +#define _(sym,str) sym, + foreach_cnat_ipv4_tcp_inside_input_exc_error +#undef _ + CNAT_IPV4_TCP_INSIDE_INPUT_EXCEPTIONS_N_ERROR, +} cnat_ipv4_tcp_inside_input_exc_error_t; + + +static char * cnat_ipv4_tcp_inside_input_exc_error_strings[] = { +#define _(sym,string) string, + foreach_cnat_ipv4_tcp_inside_input_exc_error +#undef _ +}; + +typedef struct { + u32 cached_next_index; + /* $$$$ add data here */ + + /* convenience variables */ + vlib_main_t * vlib_main; + vnet_main_t * vnet_main; +} cnat_ipv4_tcp_inside_input_exc_main_t; + +typedef enum { + CNAT_V4_TCP_I2O_E_T, + //CNAT_V4_TCP_I2O_E_ICMP, + CNAT_V4_TCP_I2O_E_D, + CNAT_V4_TCP_I2O_E_NEXT, +} cnat_ipv4_udp_inside_input_exc_next_t; + +#define CNAT_V4_TCP_I2O_E_ICMP CNAT_V4_TCP_I2O_E_D + +cnat_ipv4_tcp_inside_input_exc_main_t cnat_ipv4_tcp_inside_input_exc_main; +vlib_node_registration_t cnat_ipv4_tcp_inside_input_exc_node; + +#define NSTAGES 2 + +/* + * Use the generic buffer metadata + first line of packet data prefetch + * stage function from <api/pipeline.h>. This is usually a Good Idea. + */ +#define stage0 generic_stage0 + + +static inline u32 last_stage (vlib_main_t *vm, vlib_node_runtime_t *node, + u32 bi) +{ + vlib_buffer_t *b0 = vlib_get_buffer (vm, bi); + vlib_node_t *n = + vlib_get_node (vm, cnat_ipv4_tcp_inside_input_exc_node.index); + u32 node_counter_base_index = n->error_heap_index; + vlib_error_main_t * em = &vm->error_main; + + cnat_gen_icmp_info info; + cnat_db_key_bucket_t ki; + cnat_main_db_entry_t *db = NULL; + ipv4_header *ip = (ipv4_header *)vlib_buffer_get_current(b0); + u8 ipv4_hdr_len = (ip->version_hdr_len_words & 0xf) << 2; + tcp_hdr_type *tcp = (tcp_hdr_type *)((u8*)ip + ipv4_hdr_len); + int disposition = CNAT_V4_TCP_I2O_E_T; + int counter = CNAT_V4_TCP_I2O_E_T_PKT; + cnat_key_t dest_info; + u32 window; + u8 scale; + + window = (u32)clib_net_to_host_u16(tcp->window_size); + calculate_window_scale(tcp, &scale); + + dest_info.k.port = clib_net_to_host_u16(tcp->dest_port); + dest_info.k.ipv4 = clib_net_to_host_u32(ip->dest_addr); + + PLATFORM_CNAT_SET_RX_VRF(vnet_buffer(b0)->sw_if_index[VLIB_RX], + dest_info.k.vrf, CNAT_TCP) + + /* for TCP if not SYN or if src_port is 0, silently drop the packet */ + if (PREDICT_FALSE(!((tcp->flags & TCP_FLAG_SYN) && (tcp->src_port)))) { + + /* + * If the packet is dropped due to both reasons, + * count it as invalid packet drop + */ + if (!tcp->src_port) { + counter = CNAT_V4_TCP_I2O_E_D_INVALID_PKT; + } else { + counter = CNAT_V4_TCP_I2O_E_D_NON_SYN_PKT; + } + disposition = CNAT_V4_TCP_I2O_E_D; + goto in2out_e; + } + + PLATFORM_CNAT_SET_RX_VRF(vnet_buffer(b0)->sw_if_index[VLIB_RX], + ki.k.k.vrf, CNAT_TCP) + + ki.k.k.ipv4 = clib_net_to_host_u32(ip->src_addr); + ki.k.k.port = clib_net_to_host_u16(tcp->src_port); + + db = cnat_get_main_db_entry_v2(&ki, PORT_SINGLE, PORT_TYPE_DYNAMIC, &info, + &dest_info); + + +#if DEBUG > 1 + if(PREDICT_TRUE(db)) { + printf("create db %x ip %x->%x port %x->%x dst_ip %x\n", db, + db->in2out_key.k.ipv4, db->out2in_key.k.ipv4, + db->in2out_key.k.port, db->out2in_key.k.port, db->dst_ipv4); + } +#endif + + + if (PREDICT_FALSE(db == 0)) { + /* failed to create new db entry due to either no more port, or user limit reached, + * need to generate ICMP type=3,code=13 msg here, + */ + + /* + * we rate limit the icmp msg per private user, + * so we don't flood a user with icmp msg + * in case the per user port limit reached + */ + if (PREDICT_TRUE(info.gen_icmp_msg == CNAT_ICMP_MSG)) { + /* KEEPING THINGS COMMENTED HERE..MAY NEED TO REVISIT AGAIN */ + #if 0 + u32 *fd = (u32*)ctx->feature_data; + fd[0] = info.svi_addr; + fd[1] = CNAT_ICMP_DEST_UNREACHABLE; + + /* + * Let's reverse the direction from i2o to o2i. + * This will help using the correct VRF in the fib lookup (AVSM) + * especially for the o2i_vrf_override case + */ + ctx->ru.rx.direction = 0; // 0 - o2i, 1 - i2o + #endif + disposition = CNAT_V4_TCP_I2O_E_ICMP; + counter = CNAT_V4_TCP_I2O_E_GEN_ICMP; + + } else { + disposition = CNAT_V4_TCP_I2O_E_D; + counter = CNAT_V4_TCP_I2O_E_DROP; + } + //DEBUG_I2O_DROP(CNAT_DEBUG_DROP_TCP) + } else { + + if (PLATFORM_HANDLE_TTL_DECREMENT) { + /* + * Decrement TTL and update IPv4 checksum + */ + ipv4_decr_ttl_n_calc_csum(ip); + } + + /* NAT the packet and fix checksum */ + + tcp_in2out_nat_mss_n_checksum(ip, + tcp, + db->out2in_key.k.ipv4, + db->out2in_key.k.port, + db + /*, db->in2out_key.k.vrf */); + + /* this must be inside to outside SYN, do mss here */ + + /* update translation counters */ + db->in2out_pkts++; + + /* set keepalive timer */ + + if(PREDICT_TRUE((dest_info.k.ipv4 == db->dst_ipv4) && + (dest_info.k.port == db->dst_port))) { + if(PREDICT_FALSE(!ALG_ENABLED_DB(db))) { + //This check is done since proto_data is part of union in main + //db entry + + db->proto_data.tcp_seq_chk.seq_no = + clib_net_to_host_u32(tcp->seq_num); + db->proto_data.tcp_seq_chk.ack_no = + clib_net_to_host_u32(tcp->ack_num); + db->scale = scale; + db->diff_window = window; + } +#if DEBUG > 1 + PLATFORM_DEBUG_PRINT("\nMain DB seq no = %u," + "ack no = %u, window = %u," + "scale = %u", + db->proto_data.tcp_seq_chk.seq_no, + db->proto_data.tcp_seq_chk.ack_no, + db->diff_window + db->scale); +#endif + V4_TCP_UPDATE_SESSION_FLAG(db, tcp); + /* Check timeout db if there is config for this */ + (void) query_and_update_db_timeout((void *)db, MAIN_DB_TYPE); + db->entry_expires = cnat_current_time; + } else { + /* Got to find out the session entry corresponding to this..*/ + cnat_session_entry_t *sdb; + sdb = cnat_session_db_lookup_entry( + &dest_info, db - cnat_main_db); + if(PREDICT_FALSE(sdb == NULL)) { + disposition = CNAT_V4_TCP_I2O_E_D; + counter = CNAT_V4_TCP_I2O_E_D_NO_SESSION; + goto in2out_e; + } + sdb->tcp_seq_num = clib_net_to_host_u32(tcp->seq_num); + sdb->ack_no = clib_net_to_host_u32(tcp->ack_num); + sdb->scale = scale; + sdb->window = window; + +#if DEBUG > 1 + PLATFORM_DEBUG_PRINT("\nSDB seq no = %u, ack no = %u, window = %u" + "\nSDB scale = %u" , + sdb->tcp_seq_num, + sdb->ack_no, + sdb->window, + sdb->scale); +#endif + V4_TCP_UPDATE_SESSION_DB_FLAG(sdb, tcp); + /* Check timeout db if there is config for this */ + (void) query_and_update_db_timeout((void *)sdb, SESSION_DB_TYPE); + sdb->entry_expires = cnat_current_time; + } + + //PLATFORM_CNAT_SET_TX_VRF(ctx,db->out2in_key.k.vrf) + + counter = CNAT_V4_TCP_I2O_E_T_PKT; + in2out_forwarding_count++; + } + +in2out_e: + + em->counters[node_counter_base_index + counter] += 1; + + return disposition; +} + +#include <vnet/pipeline.h> + +static uword cnat_ipv4_tcp_inside_input_exc_node_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + return dispatch_pipeline (vm, node, frame); +} + +VLIB_REGISTER_NODE (cnat_ipv4_tcp_inside_input_exc_node) = { + .function = cnat_ipv4_tcp_inside_input_exc_node_fn, + .name = "vcgn-v4-tcp-i2o-e", + .vector_size = sizeof (u32), + .type = VLIB_NODE_TYPE_INTERNAL, + + .n_errors = ARRAY_LEN(cnat_ipv4_tcp_inside_input_exc_error_strings), + .error_strings = cnat_ipv4_tcp_inside_input_exc_error_strings, + + .n_next_nodes = CNAT_V4_TCP_I2O_E_NEXT, + + /* edit / add dispositions here */ + .next_nodes = { + [CNAT_V4_TCP_I2O_E_T] = "ip4-input", + [CNAT_V4_TCP_I2O_E_D] = "error-drop", + }, +}; + + +clib_error_t *cnat_ipv4_tcp_inside_input_exc_init (vlib_main_t *vm) +{ + cnat_ipv4_tcp_inside_input_exc_main_t * mp = &cnat_ipv4_tcp_inside_input_exc_main; + + mp->vlib_main = vm; + mp->vnet_main = vnet_get_main(); + + return 0; +} + +VLIB_INIT_FUNCTION (cnat_ipv4_tcp_inside_input_exc_init); diff --git a/plugins/vcgn-plugin/vcgn/cnat_ipv4_tcp_outside_input.c b/plugins/vcgn-plugin/vcgn/cnat_ipv4_tcp_outside_input.c new file mode 100644 index 00000000..bcf132b1 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_ipv4_tcp_outside_input.c @@ -0,0 +1,382 @@ +/* + *--------------------------------------------------------------------------- + * cnat_ipv4_tcp_outside_input.c - cnat_v4_tcp_out2in node pipeline stage functions + * + * + * Copyright (c) 2008-2014 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *--------------------------------------------------------------------------- + */ + +#include <vlib/vlib.h> +#include <vnet/vnet.h> +#include <vppinfra/error.h> +#include <vnet/buffer.h> + +#include "cnat_db.h" +#include "tcp_header_definitions.h" +#include "cnat_config.h" +#include "cnat_global.h" +#include "cnat_ipv4_udp.h" +#include "cnat_v4_functions.h" + + +#define foreach_cnat_ipv4_tcp_outside_input_error \ +_(CNAT_V4_TCP_O2I_R_PKT, "v4 tcp o2i pkt received") \ +_(CNAT_V4_TCP_O2I_T_PKT, "v4 tcp o2i pkt natted & transmitted") \ +_(CNAT_V4_TCP_O2I_LOOKUP_FAILED, "v4 tcp o2i lookup failed") \ +_(CNAT_V4_TCP_O2I_TTL_GEN, "v4 tcp o2i generated TTL Expiry ICMP packet") \ +_(CNAT_V4_TCP_O2I_TTL_DROP, "v4 tcp o2i drop due to failure in creating TTL expiry ICMP msg") \ +_(CNAT_V4_TCP_O2I_PTB_GEN, "v4 tcp o2i PTB ICMP pkt generation") \ +_(CNAT_V4_UDP_O2I_PTB_DROP, "v4 tcp o2i drop due to failure in creating PTB ICMP pkt") \ +_(CNAT_V4_TCP_O2I_SESSION_DROP, "v4 tcp o2i drop due to failure in creating session db") \ +_(CNAT_V4_TCP_O2I_SEQ_MISMATCH_DROP, "v4 tcp o2i drop due to TCP sequence mismatch") \ +_(CNAT_V4_TCP_O2I_FILTER_DROP, "v4 tcp o2i drop due to endpoint filtering") \ +_(CNAT_V4_TCP_O2I_NON_SYN_RST_DROP, "v4 tcp o2i drop due no syn/rst flag") \ +_(CNAT_V4_TCP_O2I_FIRST_FRAG_DROP, "v4 tcp o2i first fragment drop") \ +_(CNAT_V4_TCP_O2I_SUB_FRAG_NO_DB_DROP, "v4 tcp o2i subsequest frag no DB drop") + +typedef enum { +#define _(sym,str) sym, + foreach_cnat_ipv4_tcp_outside_input_error +#undef _ + CNAT_IPV4_TCP_OUTSIDE_INPUT_N_ERROR, +} cnat_ipv4_tcp_outside_input_t; + +static char * cnat_ipv4_tcp_outside_input_error_strings[] = { +#define _(sym,string) string, + foreach_cnat_ipv4_tcp_outside_input_error +#undef _ +}; + +typedef struct { + u32 cached_next_index; + /* $$$$ add data here */ + + /* convenience variables */ + vlib_main_t * vlib_main; + vnet_main_t * vnet_main; +} cnat_ipv4_tcp_outside_input_main_t; + +typedef enum { + //CNAT_V4_TCP_O2I_E, + CNAT_V4_TCP_O2I_T, + CNAT_V4_TCP_O2I_D, + CNAT_V4_TCP_O2I_NEXT, +} cnat_ipv4_tcp_outside_input_next_t; + +cnat_ipv4_tcp_outside_input_main_t cnat_ipv4_tcp_outside_input_main; +vlib_node_registration_t cnat_ipv4_tcp_outside_input_node; + +#define NSTAGES 6 + +/* + * Use the generic buffer metadata + first line of packet data prefetch + * stage function from <api/pipeline.h>. This is usually a Good Idea. + */ +#define stage0 generic_stage0 + + +static inline void +stage1(vlib_main_t * vm, vlib_node_runtime_t * node, u32 buffer_index) +{ + u64 a, b, c; + u32 bucket; + u8 *prefetch_target; + + + vlib_buffer_t * b0 = vlib_get_buffer (vm, buffer_index); + ipv4_header *ip = vlib_buffer_get_current (b0); + u8 ipv4_hdr_len = (ip->version_hdr_len_words & 0xf) << 2; + tcp_hdr_type *tcp = (tcp_hdr_type *)((u8*)ip + ipv4_hdr_len); + + u64 tmp = 0; + tmp = vnet_buffer(b0)->vcgn_uii.key.k.ipv4 = + clib_net_to_host_u32(ip->dest_addr); + vnet_buffer(b0)->vcgn_uii.key.k.port = + clib_net_to_host_u16 (tcp->dest_port); + + tmp |= ((u64)vnet_buffer(b0)->vcgn_uii.key.k.port) << 32; + + PLATFORM_CNAT_SET_RX_VRF(vnet_buffer(b0)->sw_if_index[VLIB_RX], + vnet_buffer(b0)->vcgn_uii.key.k.vrf, + CNAT_TCP) + tmp |= ((u64)vnet_buffer(b0)->vcgn_uii.key.k.vrf) << 48; + + CNAT_V4_GET_HASH(tmp, bucket, CNAT_MAIN_HASH_MASK) + + prefetch_target = (u8 *)(&cnat_out2in_hash[bucket]); + vnet_buffer(b0)->vcgn_uii.bucket = bucket; + + /* Prefetch the hash bucket */ + CLIB_PREFETCH(prefetch_target, CLIB_CACHE_LINE_BYTES, LOAD); +} + +static inline void +stage2(vlib_main_t * vm, vlib_node_runtime_t * node, u32 buffer_index) +{ /* nothing */ } + +#define SPP_LOG2_CACHE_LINE_BYTES 6 +#define SPP_CACHE_LINE_BYTES (1 << SPP_LOG2_CACHE_LINE_BYTES) + +static inline void +stage3(vlib_main_t * vm, vlib_node_runtime_t * node, u32 buffer_index) +{ + vlib_buffer_t * b0 = vlib_get_buffer(vm, buffer_index); + uword prefetch_target0, prefetch_target1; + u32 bucket = vnet_buffer(b0)->vcgn_uii.bucket; + + /* read the hash bucket */ + u32 db_index = vnet_buffer(b0)->vcgn_uii.bucket + = cnat_out2in_hash[bucket].next; + + if (PREDICT_TRUE(db_index != EMPTY)) { + /* + * Prefetch database keys. We save space by not cache-line + * aligning the DB entries. We don't want to waste LSU + * bandwidth prefetching stuff we won't need. + */ + prefetch_target0 = (uword)(cnat_main_db + db_index); + CLIB_PREFETCH((void*)prefetch_target0, CLIB_CACHE_LINE_BYTES, STORE); + /* Just beyond DB key #2 */ + prefetch_target1 = prefetch_target0 + + STRUCT_OFFSET_OF(cnat_main_db_entry_t, user_ports); + /* If the targets are in different lines, do the second prefetch */ + if (PREDICT_FALSE((prefetch_target0 & ~(SPP_CACHE_LINE_BYTES-1)) != + (prefetch_target1 & ~(SPP_CACHE_LINE_BYTES-1)))) { + CLIB_PREFETCH((void *)prefetch_target1, CLIB_CACHE_LINE_BYTES, STORE); + } + } +} + +static inline void +stage4(vlib_main_t * vm, vlib_node_runtime_t * node, u32 buffer_index) +{ + cnat_main_db_entry_t *db; + vlib_buffer_t * b0 = vlib_get_buffer(vm, buffer_index); + u32 db_index = vnet_buffer(b0)->vcgn_uii.bucket; + + /* + * Note: if the search already failed (empty bucket), + * the answer is already in the pipeline context structure + */ + if (PREDICT_TRUE(db_index != EMPTY)) { + + /* + * Note: hash collisions suck. We can't easily prefetch around them. + * The first trip around the track will be fast. After that, maybe + * not so much... + */ + do { + db = cnat_main_db + db_index; + if (PREDICT_TRUE(db->out2in_key.key64 == + vnet_buffer(b0)->vcgn_uii.key.key64)) { + break; + } + db_index = db->out2in_hash.next; + } while (db_index != EMPTY); + + /* Stick the answer back into the pipeline context structure */ + vnet_buffer(b0)->vcgn_uii.bucket = db_index; + } +} + +static inline u32 last_stage (vlib_main_t *vm, vlib_node_runtime_t *node, + u32 bi) +{ + vlib_buffer_t *b0 = vlib_get_buffer (vm, bi); + u32 db_index = vnet_buffer(b0)->vcgn_uii.bucket; + spp_ctx_t *ctx = (spp_ctx_t *) &vnet_buffer(b0)->vcgn_uii; + int disposition = CNAT_V4_TCP_O2I_T; + int counter = CNAT_V4_TCP_O2I_T_PKT; + + ipv4_header *ip = (ipv4_header *)vlib_buffer_get_current(b0); + u8 ipv4_hdr_len = (ip->version_hdr_len_words & 0xf) << 2; + tcp_hdr_type *tcp = (tcp_hdr_type *)((u8*)ip + ipv4_hdr_len); + vlib_node_t *n = vlib_get_node (vm, cnat_ipv4_tcp_outside_input_node.index); + u32 node_counter_base_index = n->error_heap_index; + vlib_error_main_t * em = &vm->error_main; + cnat_session_entry_t *session_db = NULL; + cnat_main_db_entry_t *db = NULL; + cnat_key_t dest_info; + + INCREMENT_NODE_COUNTER(CNAT_V4_TCP_O2I_R_PKT); + + if (PREDICT_FALSE(db_index == EMPTY)) { + nat44_dslite_common_stats[0].no_translation_entry_drops ++; + counter = CNAT_V4_TCP_O2I_LOOKUP_FAILED; + disposition = CNAT_V4_TCP_O2I_D; + } else { + if (PLATFORM_HANDLE_TTL_DECREMENT) { + if (PREDICT_FALSE(ip->ttl <= 1)) { + /* Try to generate ICMP error msg, as TTL is <= 1 */ + if (icmpv4_generate_with_throttling(ctx, + ip, ctx->ru.rx.uidb_index)) { + /* Generated ICMP */ + disposition = CNAT_V4_TCP_O2I_T_PKT; //CNAT_REWRITE_OUTPUT; + counter = CNAT_V4_TCP_O2I_TTL_GEN; + } else { + /* Could not generated ICMP - drop the packet */ + disposition = CNAT_V4_TCP_O2I_D; + counter = CNAT_V4_TCP_O2I_TTL_DROP; + } + goto drop_pkt; + } + } + db = cnat_main_db + db_index; +#if 0 + window = db->diff_window; + stored_seq_no = db->proto_data.tcp_seq_chk.seq_no; + stored_ack_no = db->proto_data.tcp_seq_chk.ack_no; + vrf_map_p = cnat_map_by_vrf + db->vrfmap_index; + vrf_index = (db->in2out_key.k.vrf & CNAT_VRF_MASK); +#endif + /* For Out2In packet, the dest info is src address and port */ + dest_info.k.port = clib_net_to_host_u16(tcp->src_port); + dest_info.k.ipv4 = clib_net_to_host_u32(ip->src_addr); + + if(PREDICT_TRUE(!PLATFORM_DBL_SUPPORT)) { + + /* No DBL support, so just update the destn and proceed */ + db->dst_ipv4 = dest_info.k.ipv4; + db->dst_port = dest_info.k.port; + goto update_pkt; + } + + + if(PREDICT_FALSE(db->dst_ipv4 != dest_info.k.ipv4 || + db->dst_port != dest_info.k.port)) { + + if(PREDICT_TRUE(db->nsessions == 0)) { + /* Should be a static entry + * Note this session as the first session and log + */ + cnat_add_dest_n_log(db, &dest_info); + //goto packet_upd; + } else if(PREDICT_FALSE(db->nsessions == 1)) { + /* Destn is not same as in main db. Multiple session + * scenario + */ + dest_info.k.vrf = db->in2out_key.k.vrf; + session_db = cnat_handle_1to2_session(db, &dest_info); + if(PREDICT_FALSE(session_db == NULL)) { + disposition = CNAT_V4_TCP_O2I_D; + counter = CNAT_V4_TCP_O2I_SESSION_DROP; + goto drop_pkt; + } + } else { /* There are already multiple destinations */ + dest_info.k.vrf = db->in2out_key.k.vrf; + /* If session already exists, + * cnat_create_session_db_entry will return the existing db + * else create a new db + * If could not create, return NULL + */ + session_db = cnat_create_session_db_entry(&dest_info, db, TRUE); + if(PREDICT_FALSE(session_db == NULL)) { + disposition = CNAT_V4_TCP_O2I_D; + counter = CNAT_V4_TCP_O2I_SESSION_DROP; + goto drop_pkt; + } + } + /* useful for ALG only */ + #if 0 + if(PREDICT_TRUE(session_db)) { + stored_seq_no = session_db->tcp_seq_num; + stored_ack_no = session_db->ack_no; + window = session_db->window; + } + #endif + } + + +update_pkt: + + counter = CNAT_V4_TCP_O2I_T_PKT; + + if (PLATFORM_HANDLE_TTL_DECREMENT) { + /* + * Decrement TTL and update IPv4 checksum + */ + ipv4_decr_ttl_n_calc_csum(ip); + } + + /* update ip checksum, newchecksum = ~(~oldchecksum + ~old + new) */ + cnat_v4_recalculate_tcp_checksum(ip, tcp, + &(ip->dest_addr), + &(tcp->dest_port), + db->in2out_key.k.ipv4, + db->in2out_key.k.port); + + /* CNAT_PPTP_ALG_SUPPORT */ + db->out2in_pkts++; + + nat44_dslite_global_stats[0].out2in_forwarding_count++;; + + V4_TCP_UPDATE_SESSION_FLAG(db, tcp); + + + if(PREDICT_FALSE(session_db != NULL)) { + V4_TCP_UPDATE_SESSION_DB_FLAG(session_db, tcp); + CNAT_DB_TIMEOUT_RST(session_db); + } else { + V4_TCP_UPDATE_SESSION_FLAG(db, tcp); + CNAT_DB_TIMEOUT_RST(db); + } + + } + +drop_pkt: + em->counters[node_counter_base_index + counter] += 1; + return disposition; +} + +#include <vnet/pipeline.h> + +static uword cnat_ipv4_tcp_outside_input_node_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + return dispatch_pipeline (vm, node, frame); +} + + +VLIB_REGISTER_NODE (cnat_ipv4_tcp_outside_input_node) = { + .function = cnat_ipv4_tcp_outside_input_node_fn, + .name = "vcgn-v4-tcp-o2i", + .vector_size = sizeof (u32), + .type = VLIB_NODE_TYPE_INTERNAL, + + .n_errors = ARRAY_LEN(cnat_ipv4_tcp_outside_input_error_strings), + .error_strings = cnat_ipv4_tcp_outside_input_error_strings, + + .n_next_nodes = CNAT_V4_TCP_O2I_NEXT, + + /* edit / add dispositions here */ + .next_nodes = { + //[CNAT_V4_TCP_O2I_E] = "vcgn-v4-tcp-o2i-e", + [CNAT_V4_TCP_O2I_T] = "ip4-input", + [CNAT_V4_TCP_O2I_D] = "error-drop", + }, +}; + +clib_error_t *cnat_ipv4_tcp_outside_input_init (vlib_main_t *vm) +{ + cnat_ipv4_tcp_outside_input_main_t * mp = &cnat_ipv4_tcp_outside_input_main; + + mp->vlib_main = vm; + mp->vnet_main = vnet_get_main(); + + return 0; +} + +VLIB_INIT_FUNCTION (cnat_ipv4_tcp_outside_input_init); diff --git a/plugins/vcgn-plugin/vcgn/cnat_ipv4_udp.h b/plugins/vcgn-plugin/vcgn/cnat_ipv4_udp.h new file mode 100644 index 00000000..1ccf74a0 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_ipv4_udp.h @@ -0,0 +1,41 @@ +/* + *----------------------------------------------------------------------------- + * + * Filename: cnat_ipv4_udp.h + * + * Description: common functions for udp node + * + * Assumptions and Constraints: + * + * Copyright (c) 2000-2009 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *----------------------------------------------------------------------------- + */ + +#ifndef __CNAT_IPV4_UDP_H__ +#define __CNAT_IPV4_UDP_H__ + +#include "tcp_header_definitions.h" +#include "cnat_db.h" +#include "cnat_v4_functions.h" +#include "cnat_global.h" +#include "cnat_config.h" + +extern void swap_ip_src_udp_port(ipv4_header *ip, + udp_hdr_type_t *udp, + cnat_main_db_entry_t *db); +extern void swap_ip_dst_udp_port(ipv4_header *ip, + udp_hdr_type_t *udp, + cnat_main_db_entry_t *db, + u16 vrf); +#endif /* __CNAT_IPV4_UDP_H__ */ diff --git a/plugins/vcgn-plugin/vcgn/cnat_ipv4_udp_inside_input.c b/plugins/vcgn-plugin/vcgn/cnat_ipv4_udp_inside_input.c new file mode 100644 index 00000000..657c5f1e --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_ipv4_udp_inside_input.c @@ -0,0 +1,508 @@ +/* + *--------------------------------------------------------------------------- + * cnat_ipv4_udp_inside_input.c - cnat_ipv4_udp_inside_input node functions + * + * + * Copyright (c) 2008-2014 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *--------------------------------------------------------------------------- + */ + +#include <vlib/vlib.h> +#include <vnet/vnet.h> +#include <vppinfra/error.h> +#include <vnet/buffer.h> + +#include "cnat_global.h" +#include "cnat_db.h" +#include "cnat_ipv4_udp.h" +#include "cnat_pcp_server.h" + + +#define foreach_cnat_ipv4_udp_inside_input_error \ +_(CNAT_V4_UDP_I2O_T_PKT, "v4 udp i2o transmit") \ +_(CNAT_V4_UDP_I2O_MISS_PKT, "v4 udp i2o db miss") \ +_(CNAT_V4_UDP_I2O_TTL_GEN, "v4 udp i2o TTL gen") \ +_(CNAT_V4_UDP_I2O_TTL_DROP, "v4 udp i2o TTL drop") \ +_(CNAT_V4_PCP_PKT, "v4 pcp pkt") \ +_(CNAT_V4_UDP_I2O_SESSION_DROP, "v4 udp i2o session drop") + +typedef enum { +#define _(sym,str) sym, + foreach_cnat_ipv4_udp_inside_input_error +#undef _ + CNAT_IPV4_UDP_INSIDE_INPUT_N_ERROR, +} cnat_ipv4_udp_inside_input_t; + +static char * cnat_ipv4_udp_inside_input_error_strings[] = { +#define _(sym,string) string, + foreach_cnat_ipv4_udp_inside_input_error +#undef _ +}; + +typedef struct { + u32 cached_next_index; + /* $$$$ add data here */ + + /* convenience variables */ + vlib_main_t * vlib_main; + vnet_main_t * vnet_main; +} cnat_ipv4_udp_inside_input_main_t; + +typedef enum { + CNAT_V4_I2O_FIXME, + CNAT_V4_UDP_I2O_E, + CNAT_REWRITE_OUTPUT, + CNAT_V4_UDP_I2O_T = CNAT_REWRITE_OUTPUT, + CNAT_N_NEXT, +} cnat_ipv4_udp_inside_input_next_t; + +#define CNAT_V4_UDP_I2O_D CNAT_V4_I2O_FIXME +#define CNAT_V4_PCP_T CNAT_V4_I2O_FIXME + +cnat_ipv4_udp_inside_input_main_t cnat_ipv4_udp_inside_input_main; +vlib_node_registration_t cnat_ipv4_udp_inside_input_node; + +#define NSTAGES 6 + +/* + * Use the generic buffer metadata + first line of packet data prefetch + * stage function from <api/pipeline.h>. This is usually a Good Idea. + */ +#define stage0 generic_stage0 + +#ifndef TOBE_PORTED +static inline u32 +is_pcp_pkt(u32 addr, u16 port) +{ + return CNAT_NO_CONFIG; +} +#else +static inline u32 +is_pcp_pkt(spp_ctx_t *ctx, u32 addr, u16 port) +{ + cnat_vrfmap_t *my_vrfmap = NULL; + u16 my_vrfmap_index; + + my_vrfmap_index = vrf_map_array[ctx->ru.rx.uidb_index]; + + if (PREDICT_TRUE(my_vrfmap_index != VRF_MAP_ENTRY_EMPTY)) { + + my_vrfmap = cnat_map_by_vrf + my_vrfmap_index; + + if (PREDICT_FALSE( port == my_vrfmap->pcp_server_port)) { + if(PREDICT_TRUE(addr == my_vrfmap->pcp_server_addr)) { + return CNAT_SUCCESS; + } + } + } + + return CNAT_NO_CONFIG; +} +#endif + +inline void swap_ip_src_udp_port(ipv4_header *ip, + udp_hdr_type_t *udp, + cnat_main_db_entry_t *db) +{ + /* + * declare varibale + */ + CNAT_UPDATE_L3_L4_CHECKSUM_DECLARE + /* + * calculate checksum + */ + CNAT_UPDATE_L3_L4_CHECKSUM(((u16)(db->in2out_key.k.ipv4)), + ((u16)(db->in2out_key.k.ipv4 >> 16)), + (db->in2out_key.k.port), + (clib_net_to_host_u16(ip->checksum)), + (clib_net_to_host_u16(udp->udp_checksum)), + ((u16)(db->out2in_key.k.ipv4)), + ((u16)(db->out2in_key.k.ipv4 >> 16)), + (db->out2in_key.k.port)) + +/* #define UDP_PACKET_DEBUG 1 */ + +// Temporary debugs which will be suppressed later +#ifdef UDP_PACKET_DEBUG + if (PREDICT_FALSE(udp_inside_packet_dump_enable)) { + printf("\nIn2Out UDP packet before translation"); + print_udp_pkt(ip); + } +#endif + + //set ip header + ip->src_addr = + clib_host_to_net_u32(db->out2in_key.k.ipv4); + ip->checksum = + clib_host_to_net_u16(new_l3_c); + + u16 frag_offset = + clib_net_to_host_u16(ip->frag_flags_offset); + + if(PREDICT_FALSE(frag_offset & IP_FRAG_OFFSET_MASK)) { + return; /* No need to update UDP fields */ + } + //set udp header + udp->src_port = + clib_host_to_net_u16(db->out2in_key.k.port); + + /* + * No easy way to avoid this if check except by using + * complex logic - may not be worth it. + */ + if (PREDICT_TRUE(udp->udp_checksum)) { + udp->udp_checksum = + clib_host_to_net_u16(new_l4_c); + } + +// Temporary debugs which will be suppressed later +#ifdef UDP_PACKET_DEBUG + if (PREDICT_FALSE(udp_inside_checksum_disable)) { + printf("\nIn2Out UDP checksum 0x%x disabled by force", new_l4_c); + udp->udp_checksum = 0; + } + if (PREDICT_FALSE(udp_inside_packet_dump_enable)) { + printf("\nIn2Out UDP packet after translation"); + print_udp_pkt(ip); + } +#endif +} + +static inline void +stage1(vlib_main_t * vm, vlib_node_runtime_t * node, u32 buffer_index) +{ + u64 a, b, c; + u32 bucket; + u8 *prefetch_target; + + vlib_buffer_t * b0 = vlib_get_buffer (vm, buffer_index); + ipv4_header *ip = vlib_buffer_get_current (b0); + u8 ipv4_hdr_len = (ip->version_hdr_len_words & 0xf) << 2; + udp_hdr_type_t *udp = (udp_hdr_type_t *)((u8*)ip + ipv4_hdr_len); + + u64 tmp = 0; + tmp = vnet_buffer(b0)->vcgn_uii.key.k.ipv4 = + clib_net_to_host_u32(ip->src_addr); + vnet_buffer(b0)->vcgn_uii.key.k.port = + clib_net_to_host_u16 (udp->src_port); + + tmp |= ((u64)vnet_buffer(b0)->vcgn_uii.key.k.port) << 32; + + PLATFORM_CNAT_SET_RX_VRF(vnet_buffer(b0)->sw_if_index[VLIB_RX], + vnet_buffer(b0)->vcgn_uii.key.k.vrf, + CNAT_UDP) + tmp |= ((u64)vnet_buffer(b0)->vcgn_uii.key.k.vrf) << 48; + + CNAT_V4_GET_HASH(tmp, bucket, CNAT_MAIN_HASH_MASK) + + prefetch_target = (u8 *)(&cnat_in2out_hash[bucket]); + vnet_buffer(b0)->vcgn_uii.bucket = bucket; + + /* Prefetch the hash bucket */ + CLIB_PREFETCH(prefetch_target, CLIB_CACHE_LINE_BYTES, LOAD); +} + +static inline void +stage2(vlib_main_t * vm, vlib_node_runtime_t * node, u32 buffer_index) +{ /* nothing */ } + +#define SPP_LOG2_CACHE_LINE_BYTES 6 +#define SPP_CACHE_LINE_BYTES (1 << SPP_LOG2_CACHE_LINE_BYTES) + +static inline void +stage3(vlib_main_t * vm, vlib_node_runtime_t * node, u32 buffer_index) +{ + vlib_buffer_t * b0 = vlib_get_buffer(vm, buffer_index); + uword prefetch_target0, prefetch_target1; + u32 bucket = vnet_buffer(b0)->vcgn_uii.bucket; + + /* read the hash bucket */ + u32 db_index = vnet_buffer(b0)->vcgn_uii.bucket + = cnat_in2out_hash[bucket].next; + + if (PREDICT_TRUE(db_index != EMPTY)) { + /* + * Prefetch database keys. We save space by not cache-line + * aligning the DB entries. We don't want to waste LSU + * bandwidth prefetching stuff we won't need. + */ + prefetch_target0 = (uword)(cnat_main_db + db_index); + CLIB_PREFETCH((void*)prefetch_target0, CLIB_CACHE_LINE_BYTES, LOAD); + /* Just beyond DB key #2 */ + prefetch_target1 = prefetch_target0 + + STRUCT_OFFSET_OF(cnat_main_db_entry_t, user_ports); + /* If the targets are in different lines, do the second prefetch */ + if (PREDICT_FALSE((prefetch_target0 & ~(SPP_CACHE_LINE_BYTES-1)) != + (prefetch_target1 & ~(SPP_CACHE_LINE_BYTES-1)))) { + CLIB_PREFETCH((void *)prefetch_target1, CLIB_CACHE_LINE_BYTES, LOAD); + } + } +} + +static inline void +stage4(vlib_main_t * vm, vlib_node_runtime_t * node, u32 buffer_index) +{ + cnat_main_db_entry_t *db; + vlib_buffer_t * b0 = vlib_get_buffer(vm, buffer_index); + u32 db_index = vnet_buffer(b0)->vcgn_uii.bucket; + + /* + * Note: if the search already failed (empty bucket), + * the answer is already in the pipeline context structure + */ + if (PREDICT_TRUE(db_index != EMPTY)) { + + /* + * Note: hash collisions suck. We can't easily prefetch around them. + * The first trip around the track will be fast. After that, maybe + * not so much... + */ + do { + db = cnat_main_db + db_index; + if (PREDICT_TRUE(db->in2out_key.key64 == + vnet_buffer(b0)->vcgn_uii.key.key64)) { + break; + } + db_index = db->in2out_hash.next; + } while (db_index != EMPTY); + + /* Stick the answer back into the pipeline context structure */ + vnet_buffer(b0)->vcgn_uii.bucket = db_index; + } +} + +static u64 pkt_num = 0; +static inline u32 last_stage (vlib_main_t *vm, vlib_node_runtime_t *node, + u32 bi) +{ + vlib_buffer_t *b0 = vlib_get_buffer (vm, bi); + u32 db_index = vnet_buffer(b0)->vcgn_uii.bucket; + spp_ctx_t *ctx = (spp_ctx_t *) &vnet_buffer(b0)->vcgn_uii; + int disposition = CNAT_V4_UDP_I2O_T; + int counter = CNAT_V4_UDP_I2O_T_PKT; + ipv4_header *ip = (ipv4_header *)vlib_buffer_get_current(b0); + u8 ipv4_hdr_len = (ip->version_hdr_len_words & 0xf) << 2; + udp_hdr_type_t *udp = (udp_hdr_type_t *)((u8*)ip + ipv4_hdr_len); + vlib_node_t *n = vlib_get_node (vm, cnat_ipv4_udp_inside_input_node.index); + u32 node_counter_base_index = n->error_heap_index; + vlib_error_main_t * em = &vm->error_main; + cnat_session_entry_t *session_db = NULL; + cnat_key_t dest_info; + + pkt_num++; + + if(PREDICT_FALSE(is_pcp_pkt(ip->dest_addr, udp->dest_port) == + CNAT_SUCCESS)) + { + PCP_INCR(input); + disposition = CNAT_V4_PCP_T; + counter = CNAT_V4_PCP_PKT; + + goto pcp_pkt; + } + + if (PLATFORM_HANDLE_TTL_DECREMENT) { + if (PREDICT_FALSE(ip->ttl <= 1)) { + /* Try to generate ICMP error msg, as TTL is <= 1 */ + + if (icmpv4_generate_with_throttling + (ctx, ip, ctx->ru.rx.uidb_index)) { + /* Generated ICMP */ + disposition = CNAT_REWRITE_OUTPUT; + counter = CNAT_V4_UDP_I2O_TTL_GEN; + } else { + /* Could not generated ICMP - drop the packet */ + disposition = CNAT_V4_UDP_I2O_D; + counter = CNAT_V4_UDP_I2O_TTL_DROP; + } + goto drop_pkt; + } + } + if (PREDICT_TRUE(db_index != EMPTY)) { + cnat_main_db_entry_t *db = cnat_main_db + db_index; + + dest_info.k.ipv4 = clib_net_to_host_u32(ip->dest_addr); + + /* MUST revisit: it seems farg is set to 1 for few packets & because of + * this the port is not updated & it becomes 0. Commenting teporarily + * this fargment check & setting dst port with udp dst port value */ + dest_info.k.port = clib_net_to_host_u16(udp->dest_port); + #if 0 // DONOT REMOVE THIS if 0 + if(PREDICT_FALSE(ctx->ru.rx.frag)) { +#ifdef TOBE_PORTED + /* Must have routed through cnat_v4_frag_in2out node */ + u16 *feature_data_ports = (u16 *)&ctx->feature_data[4]; + dest_info.k.port = *feature_data_ports; +#endif + } else { + dest_info.k.port = clib_net_to_host_u16(udp->dest_port); + } + #endif + + + if (PLATFORM_HANDLE_TTL_DECREMENT) { + /* + * Decrement TTL and update IPv4 checksum + */ + ipv4_decr_ttl_n_calc_csum(ip); + } + + if(PREDICT_TRUE(!PLATFORM_DBL_SUPPORT)) { + + /* No DBL support, so just update the destn and proceed */ + db->dst_ipv4 = dest_info.k.ipv4; + db->dst_port = dest_info.k.port; + CNAT_DB_TIMEOUT_RST(db); + goto update_pkt; + } + + if(PREDICT_TRUE((db->dst_ipv4 == dest_info.k.ipv4) && + (db->dst_port == dest_info.k.port))) { + + CNAT_DB_TIMEOUT_RST(db); + goto update_pkt; + } else { + if (PREDICT_FALSE(db->nsessions == 0)) { + /* Should be a static entry + * Note this session as the first session and log + */ + cnat_add_dest_n_log(db, &dest_info); + /* + * update db counter, timer + */ + + CNAT_DB_TIMEOUT_RST(db); + + } else if(PREDICT_TRUE(db->nsessions == 1)) { + /* Destn is not same as in main db. Multiple session + * scenario + */ + //printf(">>> [pkt# %lu] src_ip: 0x%x, db ip: 0x%x, db port: %u; dest ip: 0x%x, dest port: %u\n", + // pkt_num, ntohl(ip->src_addr), db->dst_ipv4, db->dst_port, dest_info.k.ipv4, dest_info.k.port); + + dest_info.k.vrf = db->in2out_key.k.vrf; + session_db = cnat_handle_1to2_session(db, &dest_info); + + if(PREDICT_TRUE(session_db != NULL)) { + /* session exists */ + CNAT_DB_TIMEOUT_RST(session_db); + } else { + /* could not create session db - drop packet */ + disposition = CNAT_V4_UDP_I2O_D; + counter = CNAT_V4_UDP_I2O_SESSION_DROP; + goto drop_pkt; + } + + } else { + /* More than 2 sessions exists */ + + dest_info.k.vrf = db->in2out_key.k.vrf; + + /* If session already exists, + * cnat_create_session_db_entry will return the existing db + * else create a new db + * If could not create, return NULL + */ + session_db = cnat_create_session_db_entry(&dest_info, + db, TRUE); + + if(PREDICT_FALSE(session_db != NULL)) { + /* session exists */ + CNAT_DB_TIMEOUT_RST(session_db); + } else { + /* could not create session db - drop packet */ + disposition = CNAT_V4_UDP_I2O_D; + counter = CNAT_V4_UDP_I2O_SESSION_DROP; + goto drop_pkt; + } + } + } + +update_pkt: + /* + * 1. update src ipv4 addr and src udp port + * 2. update ipv4 checksum and udp checksum + */ + swap_ip_src_udp_port(ip, udp, db); + /* + * update db counter, timer + */ + + db->in2out_pkts++; + + /* + * need to set outside vrf + * from db->out2in_key.k.vrf + */ + + /* Temporarily keeping this commented */ + //PLATFORM_CNAT_SET_TX_VRF(vnet_buffer(b0)->sw_if_index[VLIB_TX], + // db->out2in_key.k.vrf) + + in2out_forwarding_count++; + + } else { + disposition = CNAT_V4_UDP_I2O_E; + counter = CNAT_V4_UDP_I2O_MISS_PKT; + } + +drop_pkt: +pcp_pkt: + + em->counters[node_counter_base_index + counter] += 1; + + return disposition; +} + +#include <vnet/pipeline.h> + +static uword cnat_ipv4_udp_inside_input_node_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + return dispatch_pipeline (vm, node, frame); +} + + +VLIB_REGISTER_NODE (cnat_ipv4_udp_inside_input_node) = { + .function = cnat_ipv4_udp_inside_input_node_fn, + .name = "vcgn-v4-udp-i2o", + .vector_size = sizeof (u32), + .type = VLIB_NODE_TYPE_INTERNAL, + + .n_errors = ARRAY_LEN(cnat_ipv4_udp_inside_input_error_strings), + .error_strings = cnat_ipv4_udp_inside_input_error_strings, + + .n_next_nodes = CNAT_N_NEXT, + + /* edit / add dispositions here */ + .next_nodes = { + [CNAT_V4_I2O_FIXME] = "error-drop", + // [CNAT_V4_UDP_I2O_T] = "ip4-input", + [CNAT_V4_UDP_I2O_E] = "vcgn-v4-udp-i2o-e", + [CNAT_REWRITE_OUTPUT] = "ip4-input", + }, +}; + +clib_error_t *cnat_ipv4_udp_inside_input_init (vlib_main_t *vm) +{ + cnat_ipv4_udp_inside_input_main_t * mp = &cnat_ipv4_udp_inside_input_main; + + mp->vlib_main = vm; + mp->vnet_main = vnet_get_main(); + + return 0; +} + +VLIB_INIT_FUNCTION (cnat_ipv4_udp_inside_input_init); diff --git a/plugins/vcgn-plugin/vcgn/cnat_ipv4_udp_inside_input_exceptions.c b/plugins/vcgn-plugin/vcgn/cnat_ipv4_udp_inside_input_exceptions.c new file mode 100644 index 00000000..f078c8d4 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_ipv4_udp_inside_input_exceptions.c @@ -0,0 +1,283 @@ +/* + *--------------------------------------------------------------------------- + * cnat_ipv4_udp_inside_input_exception_stages.c - cnat_ipv4_udp_inside_input_exception node pipeline stage functions + * + * + * Copyright (c) 2008-2014 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *--------------------------------------------------------------------------- + */ + +#include <vlib/vlib.h> +#include <vnet/vnet.h> +#include <vppinfra/error.h> +#include <vnet/buffer.h> + +#include "cnat_global.h" +#include "cnat_db.h" +#include "cnat_ipv4_udp.h" + +/* + * Dump these counters via the "show error" CLI command + */ + +#define foreach_cnat_ipv4_udp_inside_input_exc_error \ +_(CNAT_V4_UDP_I2O_T_PKT, "v4 udp i2o transmit") \ +_(CNAT_V4_UDP_I2O_D_PKT, "v4 udp i2o drop") \ +_(CNAT_V4_ICMP_G_I2O_T_PKT, "v4 udp i2o icmp msg gen") \ +_(CNAT_V4_UDP_I2O_DC_PKT, "v4 udp i2o (no config) drop") \ +_(CNAT_V4_UDP_I2O_DR_PKT, "v4 udp i2o (not in run state) drop") \ +_(CNAT_V4_UDP_I2O_DD_PKT, "v4 udp i2o (no direct port) drop") \ +_(CNAT_V4_UDP_I2O_DA_PKT, "v4 udp i2o (no any port) drop") \ +_(CNAT_V4_UDP_I2O_DO_PKT, "v4 udp i2o (out of port limit) drop") \ +_(CNAT_V4_UDP_I2O_DI_PKT, "v4 udp i2o (invalid packet) drop") \ +_(CNAT_V4_UDP_I2O_DS_PKT, "v4 udp i2o (no sessoon db) drop") + +typedef enum { +#define _(sym,str) sym, + foreach_cnat_ipv4_udp_inside_input_exc_error +#undef _ + CNAT_IPV4_UDP_INSIDE_INPUT_EXCEPTIONS_N_ERROR, +} cnat_ipv4_udp_inside_input_exc_error_t; + + +static char * cnat_ipv4_udp_inside_input_exc_error_strings[] = { +#define _(sym,string) string, + foreach_cnat_ipv4_udp_inside_input_exc_error +#undef _ +}; + +typedef struct { + u32 cached_next_index; + /* $$$$ add data here */ + + /* convenience variables */ + vlib_main_t * vlib_main; + vnet_main_t * vnet_main; +} cnat_ipv4_udp_inside_input_exc_main_t; + +typedef enum { + CNAT_V4_UDP_I2O_T, + CNAT_V4_UDP_I2O_D, + CNAT_V4_ICMP_G_I2O_T = CNAT_V4_UDP_I2O_D, /* TOBE_PORTED */ + CNAT_V4_UDP_INSIDE_INPUT_EXC_N_NEXT, +} cnat_ipv4_udp_inside_input_exc_next_t; + +cnat_ipv4_udp_inside_input_exc_main_t cnat_ipv4_udp_inside_input_exc_main; +vlib_node_registration_t cnat_ipv4_udp_inside_input_exc_node; + +#define NSTAGES 2 + +/* + * Use the generic buffer metadata + first line of packet data prefetch + * stage function from <api/pipeline.h>. This is usually a Good Idea. + */ +#define stage0 generic_stage0 + +static inline u32 last_stage (vlib_main_t *vm, vlib_node_runtime_t *node, + u32 bi) +{ + vlib_buffer_t *b0 = vlib_get_buffer (vm, bi); + vlib_node_t *n = + vlib_get_node (vm, cnat_ipv4_udp_inside_input_exc_node.index); + u32 node_counter_base_index = n->error_heap_index; + vlib_error_main_t * em = &vm->error_main; + + cnat_gen_icmp_info info; + cnat_db_key_bucket_t ki; + spp_ctx_t *ctx __attribute__((unused)) + = (spp_ctx_t *) &vnet_buffer(b0)->vcgn_uii; + cnat_main_db_entry_t *db = NULL; + ipv4_header *ip = (ipv4_header *)vlib_buffer_get_current(b0); + u8 ipv4_hdr_len = (ip->version_hdr_len_words & 0xf) << 2; + udp_hdr_type_t *udp = (udp_hdr_type_t *)((u8*)ip + ipv4_hdr_len); + int disposition = CNAT_V4_UDP_I2O_T; + int counter = CNAT_V4_UDP_I2O_T_PKT; + + cnat_key_t dest_info; + + PLATFORM_CNAT_SET_RX_VRF(vnet_buffer(b0)->sw_if_index[VLIB_RX], + vnet_buffer(b0)->vcgn_uii.key.k.vrf, + CNAT_UDP) + + vnet_buffer(b0)->vcgn_uii.key.k.ipv4 = clib_net_to_host_u32(ip->src_addr); + + PLATFORM_CNAT_SET_RX_VRF(vnet_buffer(b0)->sw_if_index[VLIB_RX], + ki.k.k.vrf, CNAT_UDP) + + ki.k.k.ipv4 = clib_net_to_host_u32(ip->src_addr); + + + /* MUST REVISIT: commentting frag check. Unconditional destination port + * update. DONOT remove this #if 0 */ + ki.k.k.port = + clib_net_to_host_u16(udp->src_port); + dest_info.k.port = + clib_net_to_host_u16(udp->dest_port); +#if 0 + if(PREDICT_FALSE(ctx->ru.rx.frag)) { +#ifdef TOBE_PORTED + /* Must have routed through cnat_v4_frag_in2out node */ + u16 *feature_data_ports = (u16 *)&ctx->feature_data[2]; + ki.k.k.port = *feature_data_ports; + feature_data_ports++; + dest_info.k.port = *feature_data_ports; +#endif + } else { + ki.k.k.port = + clib_net_to_host_u16(udp->src_port); + dest_info.k.port = + clib_net_to_host_u16(udp->dest_port); + } +#endif /* if 0 */ + + dest_info.k.ipv4 = clib_net_to_host_u32(ip->dest_addr); + PLATFORM_CNAT_SET_RX_VRF(vnet_buffer(b0)->sw_if_index[VLIB_RX], + dest_info.k.vrf, CNAT_UDP) + + if (PREDICT_TRUE(ki.k.k.port)) { + if (ki.k.k.port & 0x1) { + db = cnat_get_main_db_entry_v2(&ki, PORT_S_ODD, PORT_TYPE_DYNAMIC, + &info, &dest_info); + } else { + db = cnat_get_main_db_entry_v2(&ki, PORT_S_EVEN, PORT_TYPE_DYNAMIC, + &info, &dest_info); + } + } else { + /* + * No UDP port value of 0 - drop it + */ + db = NULL; + info.error = CNAT_ERR_BAD_TCP_UDP_PORT; + } + + if (PREDICT_TRUE((u64)db)) { + + if (PLATFORM_HANDLE_TTL_DECREMENT) { + /* + * Decrement TTL and update IPv4 checksum + */ + ipv4_decr_ttl_n_calc_csum(ip); + } + + /* + * step 6 do nat before fwd pkt + */ + swap_ip_src_udp_port(ip, udp, db); + /* + * update db for this pkt + */ + CNAT_DB_UPDATE_IN2OUT_TIMER + + /* Check timeout db if there is config for this */ + (void) query_and_update_db_timeout((void *)db, MAIN_DB_TYPE); + +/* Temporarily keeping it commented */ + //PLATFORM_CNAT_SET_TX_VRF(vnet_buffer(b0)->sw_if_index[VLIB_TX], + // db->out2in_key.k.vrf) + in2out_forwarding_count++; + + } else { + switch (info.error) { + case (CNAT_NO_VRF_RUN): + em->counters[node_counter_base_index + CNAT_V4_UDP_I2O_DR_PKT] += 1; + break; + case (CNAT_OUT_LIMIT): + em->counters[node_counter_base_index + CNAT_V4_UDP_I2O_DO_PKT] += 1; + break; + case (CNAT_NO_PORT_ANY): + case (CNAT_NO_POOL_ANY): + case (CNAT_BAD_INUSE_ANY): + case (CNAT_NOT_FOUND_ANY): + em->counters[node_counter_base_index + CNAT_V4_UDP_I2O_DA_PKT] += 1; + break; + case (CNAT_INV_PORT_DIRECT): + case (CNAT_DEL_PORT_DIRECT): + case (CNAT_BAD_INUSE_DIRECT): + case (CNAT_NOT_FOUND_DIRECT): + em->counters[node_counter_base_index + CNAT_V4_UDP_I2O_DD_PKT] += 1; + break; + case (CNAT_ERR_BAD_TCP_UDP_PORT): + em->counters[node_counter_base_index + CNAT_V4_UDP_I2O_DI_PKT] += 1; + break; + case (CNAT_ERR_NO_SESSION_DB): + em->counters[node_counter_base_index + CNAT_V4_UDP_I2O_DS_PKT] += 1; + break; + default: + em->counters[node_counter_base_index + CNAT_V4_UDP_I2O_DC_PKT] += 1; + break; + } + /* + * send to icmp msg generate node + */ + if (info.gen_icmp_msg == CNAT_ICMP_MSG) { +#ifdef TOBE_PORTED + u32 *fd = (u32*)ctx->feature_data; + fd[0] = info.svi_addr; + fd[1] = CNAT_ICMP_DEST_UNREACHABLE; +#endif + disposition = CNAT_V4_ICMP_G_I2O_T; + counter = CNAT_V4_ICMP_G_I2O_T_PKT; + } else { + disposition = CNAT_V4_UDP_I2O_D; + counter = CNAT_V4_UDP_I2O_D_PKT; + } + DEBUG_I2O_DROP(CNAT_DEBUG_DROP_UDP) + } + + em->counters[node_counter_base_index + counter] += 1; + + return disposition; +} + + +#include <vnet/pipeline.h> + +static uword cnat_ipv4_udp_inside_input_exc_node_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + return dispatch_pipeline (vm, node, frame); +} + +VLIB_REGISTER_NODE (cnat_ipv4_udp_inside_input_exc_node) = { + .function = cnat_ipv4_udp_inside_input_exc_node_fn, + .name = "vcgn-v4-udp-i2o-e", + .vector_size = sizeof (u32), + .type = VLIB_NODE_TYPE_INTERNAL, + + .n_errors = ARRAY_LEN(cnat_ipv4_udp_inside_input_exc_error_strings), + .error_strings = cnat_ipv4_udp_inside_input_exc_error_strings, + + .n_next_nodes = CNAT_V4_UDP_INSIDE_INPUT_EXC_N_NEXT, + + /* edit / add dispositions here */ + .next_nodes = { + [CNAT_V4_UDP_I2O_T] = "ip4-input", + [CNAT_V4_UDP_I2O_D] = "error-drop", + }, +}; + + +clib_error_t *cnat_ipv4_udp_inside_input_exc_init (vlib_main_t *vm) +{ + cnat_ipv4_udp_inside_input_exc_main_t * mp = &cnat_ipv4_udp_inside_input_exc_main; + + mp->vlib_main = vm; + mp->vnet_main = vnet_get_main(); + + return 0; +} + +VLIB_INIT_FUNCTION (cnat_ipv4_udp_inside_input_exc_init); + diff --git a/plugins/vcgn-plugin/vcgn/cnat_ipv4_udp_outside_input.c b/plugins/vcgn-plugin/vcgn/cnat_ipv4_udp_outside_input.c new file mode 100644 index 00000000..5a24a111 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_ipv4_udp_outside_input.c @@ -0,0 +1,605 @@ + +/* + *--------------------------------------------------------------------------- + * cnat_ipv4_udp_outside_input_stages.c - cnat_ipv4_udp_outside_input node pipeline stage functions + * + * + * Copyright (c) 2008-2014 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *--------------------------------------------------------------------------- + */ + +#include <vlib/vlib.h> +#include <vnet/vnet.h> +#include <vppinfra/error.h> +#include <vnet/buffer.h> + +#include "cnat_ipv4_udp.h" +#include "dslite_db.h" +#include "cnat_db.h" +#include "cnat_v4_functions.h" + +//#include <dslite_v6_functions.h> +//#include <pool.h> +//#include "cnat_va_db.h" + +#define foreach_cnat_ipv4_udp_outside_input_error \ +_(CNAT_V4_UDP_O2I_T_PKT, "v4 udp o2i transmit") \ +_(CNAT_V4_DSLITE_ENCAP_CTR, "to dslite encap") \ +_(CNAT_V4_UDP_O2I_MISS_PKT, "v4 udp o2i db miss drop") \ +_(CNAT_V4_UDP_O2I_TTL_GEN, "v4 udp o2i TTL gen") \ +_(CNAT_V4_UDP_O2I_TTL_DROP, "v4 udp o2i TTL drop") \ +_(CNAT_V4_UDP_O2I_PTB_GEN, "v4 ptb gen") \ +_(CNAT_V4_UDP_O2I_PTB_DROP, "v4 ptb throttle drop") \ +_(CNAT_V4_UDP_O2I_SESSION_DROP, "v4 udp o2i session drop") \ +_(CNAT_V4_UDP_O2I_FILTER_DROP, "v4 udp o2i drop: end point filtering") \ +_(CNAT_V4_UDP_O2I_SUB_FRAG_NO_DB_DROP, "v4 udp o2i subsequent frag no DB drop") \ +_(CNAT_V4_UDP_O2I_1ST_FRAG_FILTER_DROP, "v4 udp i2o 1st frag filter drop") + +typedef enum { +#define _(sym,str) sym, + foreach_cnat_ipv4_udp_outside_input_error +#undef _ + CNAT_IPV4_UDP_OUTSIDE_INPUT_N_ERROR, +} cnat_ipv4_udp_outside_input_t; + +static char * cnat_ipv4_udp_outside_input_error_strings[] = { +#define _(sym,string) string, + foreach_cnat_ipv4_udp_outside_input_error +#undef _ +}; + +typedef struct { + u32 cached_next_index; + /* $$$$ add data here */ + + /* convenience variables */ + vlib_main_t * vlib_main; + vnet_main_t * vnet_main; +} cnat_ipv4_udp_outside_input_main_t; + +typedef enum { + //CNAT_V4_O2I_FIXME, + CNAT_V4_UDP_O2I_E, + CNAT_V4_UDP_O2I_T, + CNAT_V4_UDP_O2I_NEXT, +} cnat_ipv4_udp_outside_input_next_t; + +//#define CNAT_V4_DSLITE_ENCAP CNAT_V4_O2I_FIXME +//#define CNAT_V4_UDP_O2I_E CNAT_V4_O2I_FIXME + +cnat_ipv4_udp_outside_input_main_t cnat_ipv4_udp_outside_input_main; +vlib_node_registration_t cnat_ipv4_udp_outside_input_node; + +#define NSTAGES 6 + +/* + * Use the generic buffer metadata + first line of packet data prefetch + * stage function from <api/pipeline.h>. This is usually a Good Idea. + */ +#define stage0 generic_stage0 + + +#if 0 +typedef struct cnat_ipv4_udp_outside_input_pipeline_data_ { + //spp_node_main_vector_t *nmv; + dslite_common_pipeline_data_t common_data; + /* Add additional pipeline stage data here... */ + u32 bucket; +#ifdef DSLITE_DEF + u32 user_bucket; + dslite_v4_to_v6_udp_counter_t *udp_counter; + dslite_icmp_gen_counter_t *icmp_gen_counter; + +#endif + cnat_key_t ki; + udp_hdr_type_t *udp; + u8 frag_pkt; +} cnat_ipv4_udp_outside_input_pipeline_data_t; + +#endif + +#define CNAT_UDP_OUTSIDE_UPDATE_FLAG_TIMER(db,dslite_nat44_inst_id) \ + if (PREDICT_FALSE(!(db->flags & CNAT_DB_FLAG_UDP_ACTIVE))) { \ + db->flags |= CNAT_DB_FLAG_UDP_ACTIVE; \ + CNAT_DB_TIMEOUT_RST(db); \ + } else if (PREDICT_FALSE(db->flags & CNAT_DB_DSLITE_FLAG)) { \ + if (PREDICT_TRUE(dslite_table_db_ptr[dslite_nat44_inst_id].mapping_refresh_both_direction)) { \ + CNAT_DB_TIMEOUT_RST(db); \ + } \ + } else if (PREDICT_TRUE(mapping_refresh_both_direction)) { \ + CNAT_DB_TIMEOUT_RST(db); \ + } \ + +#if 0 +static cnat_ipv4_udp_outside_input_pipeline_data_t pctx_data[SPP_MAXDISPATCH]; +#define EXTRA_PIPELINE_ARGS_PROTO , cnat_ipv4_udp_outside_input_pipeline_data_t *pctx +#define EXTRA_PIPELINE_ARGS , pctx + +#endif + +/*inline u32 +is_static_dest_nat_enabled(u16 vrf) +{ + if(static_dest_vrf_map_array[vrf] == 1) { + return CNAT_SUCCESS; + } + return CNAT_NO_CONFIG; +}*/ + +static inline void __attribute__((unused)) +swap_ip_dst(ipv4_header *ip, cnat_main_db_entry_t *db, u16 vrf) +{ + + CNAT_UPDATE_L3_CHECKSUM_DECLARE + /* + * calculate checksum + */ + CNAT_UPDATE_L3_CHECKSUM(((u16)(db->out2in_key.k.ipv4)), + ((u16)(db->out2in_key.k.ipv4 >> 16)), + (clib_host_to_net_u16(ip->checksum)), + ((u16)(db->in2out_key.k.ipv4)), + ((u16)(db->in2out_key.k.ipv4 >> 16))) + //set ip header + ip->dest_addr = + clib_host_to_net_u32(db->in2out_key.k.ipv4); + ip->checksum = + clib_host_to_net_u16(new_l3_c); + +#if 0 + + if(is_static_dest_nat_enabled(vrf) == CNAT_SUCCESS) { + direction = 1; + if(cnat_static_dest_db_get_translation(ip->src_addr, &postmap_ip, vrf, direction) == CNAT_SUCCESS) { + old_ip = spp_net_to_host_byte_order_32(&(ip->src_addr)); + old_postmap_ip = spp_net_to_host_byte_order_32(&postmap_ip); + + CNAT_UPDATE_L3_CHECKSUM(((u16)(old_ip & 0xFFFF)), + ((u16)(old_ip >> 16)), + (spp_net_to_host_byte_order_16(&(ip->checksum))), + ((u16)(old_postmap_ip & 0xFFFF)), + ((u16)(old_postmap_ip >> 16))) + ip->checksum = + clib_host_to_net_u16(new_l3_c); + ip->src_addr = postmap_ip; + } + } +#endif +} + +inline void swap_ip_dst_udp_port(ipv4_header *ip, + udp_hdr_type_t *udp, + cnat_main_db_entry_t *db, u16 vrf) +{ + +#define UDP_PACKET_DEBUG 1 + +// Temporary debugs which will be suppressed later +#ifdef UDP_PACKET_DEBUG + if (PREDICT_FALSE(udp_outside_packet_dump_enable)) { + printf("\nOut2In UDP packet before translation"); + print_udp_pkt(ip); + } +#endif + +#if 0 + if(is_static_dest_nat_enabled(vrf) == CNAT_SUCCESS) { + direction = 1; + if(cnat_static_dest_db_get_translation(ip->src_addr, &postmap_ip, vrf, direction) == CNAT_SUCCESS) { + + CNAT_UPDATE_L3_L4_CHECKSUM_DECLARE + + old_ip = spp_net_to_host_byte_order_32(&(ip->src_addr)); + old_postmap_ip = spp_net_to_host_byte_order_32(&postmap_ip); + + CNAT_UPDATE_L3_L4_CHECKSUM(((u16)(old_ip & 0xFFFF)), + ((u16)(old_ip >> 16)), + (spp_net_to_host_byte_order_16(&(udp->src_port))), + (spp_net_to_host_byte_order_16(&(ip->checksum))), + (spp_net_to_host_byte_order_16(&(udp->udp_checksum))), + ((u16)(old_postmap_ip & 0xFFFF)), + ((u16)(old_postmap_ip >> 16)), + (spp_net_to_host_byte_order_16(&(udp->src_port)))) + + ip->checksum = + clib_host_to_net_u16(new_l3_c); + ip->src_addr = postmap_ip; + if (PREDICT_TRUE(udp->udp_checksum)) { + udp->udp_checksum = clib_host_to_net_u16(new_l4_c); + } + } + } +#endif + /* + * declare variable + */ + CNAT_UPDATE_L3_L4_CHECKSUM_DECLARE + /* + * calculate checksum + */ + CNAT_UPDATE_L3_L4_CHECKSUM(((u16)(db->out2in_key.k.ipv4)), + ((u16)(db->out2in_key.k.ipv4 >> 16)), + (db->out2in_key.k.port), + (clib_net_to_host_u16(ip->checksum)), + (clib_net_to_host_u16(udp->udp_checksum)), + ((u16)(db->in2out_key.k.ipv4)), + ((u16)(db->in2out_key.k.ipv4 >> 16)), + (db->in2out_key.k.port)) + + + + + //set ip header + ip->dest_addr = + clib_host_to_net_u32(db->in2out_key.k.ipv4); + ip->checksum = + clib_host_to_net_u16(new_l3_c); + + //set udp header + udp->dest_port = + clib_host_to_net_u16(db->in2out_key.k.port); + + /* + * No easy way to avoid this if check except by using + * complex logic - may not be worth it. + */ + if (PREDICT_TRUE(udp->udp_checksum)) { + udp->udp_checksum = clib_host_to_net_u16(new_l4_c); + } + + + +// Temporary debugs which will be suppressed later +#ifdef UDP_PACKET_DEBUG + if (PREDICT_FALSE(udp_outside_checksum_disable)) { + printf("\nOut2In UDP checksum 0x%x disabled by force", new_l4_c); + udp->udp_checksum = 0; + } + if (PREDICT_FALSE(udp_outside_packet_dump_enable)) { + printf("\nOut2In UDP packet after translation"); + print_udp_pkt(ip); + } +#endif +} + +static inline void +stage1(vlib_main_t * vm, vlib_node_runtime_t * node, u32 buffer_index) +{ + u64 a, b, c; + u32 bucket; + u8 *prefetch_target; + + vlib_buffer_t * b0 = vlib_get_buffer (vm, buffer_index); + ipv4_header *ip = vlib_buffer_get_current (b0); + u8 ipv4_hdr_len = (ip->version_hdr_len_words & 0xf) << 2; + udp_hdr_type_t *udp = (udp_hdr_type_t *)((u8*)ip + ipv4_hdr_len); + + u64 tmp = 0; + tmp = vnet_buffer(b0)->vcgn_uii.key.k.ipv4 = + clib_net_to_host_u32(ip->dest_addr); + vnet_buffer(b0)->vcgn_uii.key.k.port = + clib_net_to_host_u16 (udp->dest_port); + + tmp |= ((u64)vnet_buffer(b0)->vcgn_uii.key.k.port) << 32; + + PLATFORM_CNAT_SET_RX_VRF(vnet_buffer(b0)->sw_if_index[VLIB_RX], + vnet_buffer(b0)->vcgn_uii.key.k.vrf, + CNAT_UDP) + tmp |= ((u64)vnet_buffer(b0)->vcgn_uii.key.k.vrf) << 48; + + CNAT_V4_GET_HASH(tmp, bucket, CNAT_MAIN_HASH_MASK) + + prefetch_target = (u8 *)(&cnat_out2in_hash[bucket]); + vnet_buffer(b0)->vcgn_uii.bucket = bucket; + + /* Prefetch the hash bucket */ + CLIB_PREFETCH(prefetch_target, CLIB_CACHE_LINE_BYTES, LOAD); +} + +static inline void +stage2(vlib_main_t * vm, vlib_node_runtime_t * node, u32 buffer_index) +{ /* nothing */ } + +#define SPP_LOG2_CACHE_LINE_BYTES 6 +#define SPP_CACHE_LINE_BYTES (1 << SPP_LOG2_CACHE_LINE_BYTES) + +static inline void +stage3(vlib_main_t * vm, vlib_node_runtime_t * node, u32 buffer_index) +{ + vlib_buffer_t * b0 = vlib_get_buffer(vm, buffer_index); + uword prefetch_target0, prefetch_target1; + u32 bucket = vnet_buffer(b0)->vcgn_uii.bucket; + + /* read the hash bucket */ + u32 db_index = vnet_buffer(b0)->vcgn_uii.bucket + = cnat_out2in_hash[bucket].next; + + if (PREDICT_TRUE(db_index != EMPTY)) { + /* + * Prefetch database keys. We save space by not cache-line + * aligning the DB entries. We don't want to waste LSU + * bandwidth prefetching stuff we won't need. + */ + prefetch_target0 = (uword)(cnat_main_db + db_index); + CLIB_PREFETCH((void*)prefetch_target0, CLIB_CACHE_LINE_BYTES, STORE); + /* Just beyond DB key #2 */ + prefetch_target1 = prefetch_target0 + + STRUCT_OFFSET_OF(cnat_main_db_entry_t, user_ports); + /* If the targets are in different lines, do the second prefetch */ + if (PREDICT_FALSE((prefetch_target0 & ~(SPP_CACHE_LINE_BYTES-1)) != + (prefetch_target1 & ~(SPP_CACHE_LINE_BYTES-1)))) { + CLIB_PREFETCH((void *)prefetch_target1, CLIB_CACHE_LINE_BYTES, STORE); + } + } +} + +static inline void +stage4(vlib_main_t * vm, vlib_node_runtime_t * node, u32 buffer_index) +{ + cnat_main_db_entry_t *db; + vlib_buffer_t * b0 = vlib_get_buffer(vm, buffer_index); + u32 db_index = vnet_buffer(b0)->vcgn_uii.bucket; + + /* + * Note: if the search already failed (empty bucket), + * the answer is already in the pipeline context structure + */ + if (PREDICT_TRUE(db_index != EMPTY)) { + + /* + * Note: hash collisions suck. We can't easily prefetch around them. + * The first trip around the track will be fast. After that, maybe + * not so much... + */ + do { + db = cnat_main_db + db_index; + if (PREDICT_TRUE(db->out2in_key.key64 == + vnet_buffer(b0)->vcgn_uii.key.key64)) { + break; + } + db_index = db->out2in_hash.next; + } while (db_index != EMPTY); + + /* Stick the answer back into the pipeline context structure */ + vnet_buffer(b0)->vcgn_uii.bucket = db_index; + } +} + +#if 0 + +ALWAYS_INLINE( +static inline void +stage5(spp_ctx_t **ctxs, int index, spp_node_t *np, + u8 *disp_used EXTRA_PIPELINE_ARGS_PROTO)) +{ + spp_ctx_t *ctx = ctxs[index]; + u32 db_index = pctx[index].bucket; + /* for nat44, dslite_id will be 1 */ + u16 dslite_id = *(pctx[index].common_data.dslite_id_ptr); + + DSLITE_PREFETCH_COUNTER(pctx[index].udp_counter, + &dslite_all_counters[dslite_id].v46_udp_counters, + dslite_v4_to_v6_udp_counter_t, + v4_to_v6_udp_output_count, + "V4_TO_V6_UDP") + + DSLITE_PREFETCH_COUNTER(pctx[index].icmp_gen_counter, + &dslite_all_counters[dslite_id].dslite_icmp_gen_counters, + dslite_icmp_gen_counter_t, + v6_icmp_gen_count, + "V4_TO_V6_icmp") + +if (PREDICT_TRUE(db_index != EMPTY)) { + cnat_main_db_entry_t *db = cnat_main_db + db_index; + + u32 user_db_index = db->user_index; + DSLITE_PRINTF(1, "UDP o2i, db entry found %u %u %u\n", + db_index, user_db_index, + db->dslite_nat44_inst_id); + uword prefetch_target0 = (uword)(cnat_user_db + user_db_index); + SPP_PREFETCH(prefetch_target0, 0, LOAD); + pctx[index].user_bucket = user_db_index; + DSLITE_PRINTF(1, "UDP: Done with prefetch..\n"); +} else { + DSLITE_PRINTF(1, "UDP: Stage 5, db_index empty...\n"); +} +} + +#endif + + +static inline u32 last_stage (vlib_main_t *vm, vlib_node_runtime_t *node, + u32 bi) +{ + + vlib_buffer_t *b0 = vlib_get_buffer (vm, bi); + u32 db_index = vnet_buffer(b0)->vcgn_uii.bucket; + //spp_ctx_t *ctx = (spp_ctx_t *) &vnet_buffer(b0)->vcgn_uii; + int disposition = CNAT_V4_UDP_O2I_T; + int counter = CNAT_V4_UDP_O2I_T_PKT; + ipv4_header *ip = (ipv4_header *)vlib_buffer_get_current(b0); + u8 ipv4_hdr_len = (ip->version_hdr_len_words & 0xf) << 2; + udp_hdr_type_t *udp = (udp_hdr_type_t *)((u8*)ip + ipv4_hdr_len); + vlib_node_t *n = vlib_get_node (vm, cnat_ipv4_udp_outside_input_node.index); + u32 node_counter_base_index = n->error_heap_index; + vlib_error_main_t * em = &vm->error_main; + cnat_session_entry_t *session_db = NULL; + cnat_main_db_entry_t *db = NULL; + cnat_key_t dest_info; + u16 dslite_nat44_inst_id __attribute__((unused)) = 0; + + dest_info.k.port = clib_net_to_host_u16(udp->src_port); + dest_info.k.ipv4 = clib_net_to_host_u32(ip->src_addr); + + if (PREDICT_TRUE(db_index != EMPTY)) { + /* TTL gen was disabled for nat44 earlier + * But since dslite has got integrated in this + * TTL gen is enabled + */ + + db = cnat_main_db + db_index; + if (PLATFORM_HANDLE_TTL_DECREMENT) { + /* + * Decrement TTL and update IPv4 checksum + */ + ipv4_decr_ttl_n_calc_csum(ip); + } + if(PREDICT_TRUE(!PLATFORM_DBL_SUPPORT)) { + + /* No DBL support, so just update the destn and proceed */ + db->dst_ipv4 = dest_info.k.ipv4; + db->dst_port = dest_info.k.port; + CNAT_UDP_OUTSIDE_UPDATE_FLAG_TIMER(db, 0) + goto update_pkt; + } + + + if(PREDICT_TRUE((db->dst_ipv4 == dest_info.k.ipv4) && + (db->dst_port == dest_info.k.port))) { + + CNAT_UDP_OUTSIDE_UPDATE_FLAG_TIMER(db, 0) + goto update_pkt; + } else { + /* The session entries belonging to this entry are checked to find + * if an entry exist whose destination IP and port match with the + * source IP and port of the packet being processed + */ + dest_info.k.vrf = db->in2out_key.k.vrf; + + if (PREDICT_FALSE(db->nsessions == 0)) { + /* Should be a static entry + * Note this session as the first session and log + */ + cnat_add_dest_n_log(db, &dest_info); + CNAT_UDP_OUTSIDE_UPDATE_FLAG_TIMER(db, 0) + + } else if(PREDICT_TRUE(db->nsessions == 1)) { + + /* Destn is not same as in main db. Multiple session + * scenario + */ + dest_info.k.vrf = db->in2out_key.k.vrf; + session_db = cnat_handle_1to2_session(db, &dest_info); + + if(PREDICT_FALSE(session_db == NULL)) { + disposition = CNAT_V4_UDP_O2I_E; + counter = CNAT_V4_UDP_O2I_SESSION_DROP; + goto drop_pkt; + } + + /* update session_db(cur packet) timer */ + CNAT_UDP_OUTSIDE_UPDATE_FLAG_TIMER(session_db, 0) + } else { + /* More 2 sessions exists */ + + dest_info.k.vrf = db->in2out_key.k.vrf; + + /* If session already exists, + * cnat_create_session_db_entry will return the existing db + * else create a new db + * If could not create, return NULL + */ + session_db = cnat_create_session_db_entry(&dest_info, + db, TRUE); + + if(PREDICT_FALSE(session_db != NULL)) { + /* session exists */ + CNAT_UDP_OUTSIDE_UPDATE_FLAG_TIMER(session_db, 0) + } else { + /* could not create session db - drop packet */ + disposition = CNAT_V4_UDP_O2I_E; + counter = CNAT_V4_UDP_O2I_SESSION_DROP; + goto drop_pkt; + } + } + } + +update_pkt: + + /* + * 1. update dest ipv4 addr and dest udp port + * 2. update ipv4 checksum and udp checksum + */ + //swap_ip_dst(ip, db, db->in2out_key.k.vrf); + swap_ip_dst_udp_port(ip, udp, db, db->in2out_key.k.vrf); + //DSLITE_PRINTF(1, "Done with swap_ip_dst_udp_port..\n"); + + db->out2in_pkts++; + + nat44_dslite_global_stats[0].out2in_forwarding_count++; + + /* #### Temporarily COMMENTED FOR IP ROUTE LOOKUP ISSUE #### */ + + //PLATFORM_CNAT_SET_TX_VRF(vnet_buffer(b0)->sw_if_index[VLIB_TX], + // db->in2out_key.k.vrf) + } else { + disposition = CNAT_V4_UDP_O2I_E; + counter = CNAT_V4_UDP_O2I_MISS_PKT; + /* for NAT44 dslite_id would be 1 */ + nat44_dslite_common_stats[0].no_translation_entry_drops ++; + } + +drop_pkt: + + em->counters[node_counter_base_index + counter] += 1; + return disposition; +} + +#include <vnet/pipeline.h> + +static uword cnat_ipv4_udp_outside_input_node_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + return dispatch_pipeline (vm, node, frame); +} + + +VLIB_REGISTER_NODE (cnat_ipv4_udp_outside_input_node) = { + .function = cnat_ipv4_udp_outside_input_node_fn, + .name = "vcgn-v4-udp-o2i", + .vector_size = sizeof (u32), + .type = VLIB_NODE_TYPE_INTERNAL, + + .n_errors = ARRAY_LEN(cnat_ipv4_udp_outside_input_error_strings), + .error_strings = cnat_ipv4_udp_outside_input_error_strings, + + .n_next_nodes = CNAT_V4_UDP_O2I_NEXT, + + /* edit / add dispositions here */ +#if 0 + .next_nodes = { + //[CNAT_V4_O2I_FIXME] = "error-drop", + //[CNAT_V4_UDP_O2I_E] = "vcgn-v4-udp-o2i-e", + [CNAT_V4_UDP_O2I_E] = "vcgn-v4-udp-o2i-e", + [CNAT_V4_UDP_O2I_T] = "ip4-input", + }, +#endif + .next_nodes = { + [CNAT_V4_UDP_O2I_E] = "error-drop", + [CNAT_V4_UDP_O2I_T] = "ip4-input", + }, + +}; + +clib_error_t *cnat_ipv4_udp_outside_input_init (vlib_main_t *vm) +{ + cnat_ipv4_udp_outside_input_main_t * mp = &cnat_ipv4_udp_outside_input_main; + + mp->vlib_main = vm; + mp->vnet_main = vnet_get_main(); + + return 0; +} + +VLIB_INIT_FUNCTION (cnat_ipv4_udp_outside_input_init); diff --git a/plugins/vcgn-plugin/vcgn/cnat_log_api.h b/plugins/vcgn-plugin/vcgn/cnat_log_api.h new file mode 100644 index 00000000..60cf6836 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_log_api.h @@ -0,0 +1,114 @@ +/* + *------------------------------------------------------------------ + * cnat_log_api.h + * Declraes the common APIs for logging (both syslog and NFV9) + * Copyright (c) 2013, 20122 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ + +#ifndef __CNAT_LOG_API_H__ +#define __CNAT_LOG_API_H__ + +#include "cnat_logging.h" + +static inline void cnat_log_ds_lite_mapping_delete(cnat_main_db_entry_t *db, + dslite_table_entry_t *dslite_entry +#ifndef NO_BULK_LOGGING + , int bulk_alloc +#endif + ) +{ + return; +} + +static inline void cnat_log_ds_lite_mapping_create(cnat_main_db_entry_t *db, + dslite_table_entry_t *dslite_entry +#ifndef NO_BULK_LOGGING + , int bulk_alloc +#endif + ) +{ + return; +} + +static inline void cnat_log_ds_lite_port_limit_exceeded( + dslite_key_t * key, + dslite_table_entry_t *dslite_entry_ptr) +{ + return; + +} + +static inline void cnat_log_nat44_port_limit_exceeded( + cnat_key_t * key, + cnat_vrfmap_t *vrfmap) +{ + return; +} +static inline void cnat_log_nat44_mapping_create(cnat_main_db_entry_t *db, + cnat_vrfmap_t *vrfmap +#ifndef NO_BULK_LOGGING + , int bulk_alloc +#endif + ) +{ + return; +} + +static inline void cnat_log_nat44_mapping_delete(cnat_main_db_entry_t *db, + cnat_vrfmap_t *vrfmap +#ifndef NO_BULK_LOGGING + , int bulk_alloc +#endif + ) +{ + return; +} + +/* Session Logging API for nat44 */ +static inline void cnat_session_log_nat44_mapping_create ( + cnat_main_db_entry_t *db, + cnat_session_entry_t *sdb, + cnat_vrfmap_t *vrfmap ) +{ + return; +} + +static inline void cnat_session_log_nat44_mapping_delete ( + cnat_main_db_entry_t *db, + cnat_session_entry_t *sdb, + cnat_vrfmap_t *vrfmap ) +{ + return; +} + +/* Session Logging API for dslite */ +static inline void cnat_session_log_ds_lite_mapping_create ( + cnat_main_db_entry_t *db, + dslite_table_entry_t *dslite_entry, + cnat_session_entry_t *sdb ) +{ + return; +} + +static inline void cnat_session_log_ds_lite_mapping_delete ( + cnat_main_db_entry_t *db, + dslite_table_entry_t *dslite_entry, + cnat_session_entry_t *sdb ) +{ + return; +} + +#endif /* #ifndef __CNAT_LOG_API_H__ */ + diff --git a/plugins/vcgn-plugin/vcgn/cnat_log_common.h b/plugins/vcgn-plugin/vcgn/cnat_log_common.h new file mode 100644 index 00000000..52731bc0 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_log_common.h @@ -0,0 +1,79 @@ +/* + *------------------------------------------------------------------ + * cnat_log_common.h + * Contains macros and definitions that are common to both syslog and nfv9 + * Copyright (c) 2011-2012 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ + +#ifndef __CNAT_LOG_COMMON_H__ +#define __CNAT_LOG_COMMON_H__ + +#include <stdio.h> +#include <vlib/vlib.h> +#include <vnet/vnet.h> + +#include "cnat_db.h" +#include "nat64_db.h" +#include "spp_timers.h" +#include "spp_ctx.h" + +/* + * This corresponds to the length of the IMETRO SHIM Header for RODDICK + * For non-roddick cases, introduce an Ethernet header as well + */ +#if 0 + #if defined(TARGET_RODDICK) + #define CNAT_NFV9_SHIM_HDR_OFFSET 8 + #define CNAT_NFV9_L2_ENCAPS_OFFSET 0 + #else + #define CNAT_NFV9_SHIM_HDR_OFFSET 0 + #define CNAT_NFV9_L2_ENCAPS_OFFSET 16 + #endif +#endif + + #define CNAT_NFV9_IP_HDR_OFFSET 0 + + #define CNAT_NFV9_UDP_HDR_OFFSET \ + (CNAT_NFV9_IP_HDR_OFFSET + sizeof(ipv4_header)) + + #define CNAT_NFV9_HDR_OFFSET \ + (CNAT_NFV9_UDP_HDR_OFFSET + sizeof(udp_hdr_type_t)) + +u32 cnat_get_sys_up_time_in_ms(void); +u32 cnat_get_unix_time_in_seconds(void); +void cnat_dump_time_change_logs(void); +void cnat_handle_sys_time_change (time_t current_unix_time); +/* + * Maximum number of time log changes we maintain + */ + +#define MAX_TIME_CHANGE_LOGS (8) + +typedef struct { + /* + * A timer structure to periodically send NFv9 & syslog logging packets + * that have been waiting to be full for a long time. This will + * ensure add/delete events don't get delayed too much before they + * are sent to the collector. + */ + spp_timer_t log_timer; + + /* + * Whether we have initialized the NFv9 information + */ + u8 cnat_log_init_done; +} cnat_log_global_info_t; + +#endif /* __CNAT_LOG_COMMON_H__ */ diff --git a/plugins/vcgn-plugin/vcgn/cnat_logging.c b/plugins/vcgn-plugin/vcgn/cnat_logging.c new file mode 100644 index 00000000..50805d11 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_logging.c @@ -0,0 +1,3518 @@ +/* + *------------------------------------------------------------------ + * cnat_logging.c + * + * Copyright (c) 2009-2013 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ + +#include <vlib/vlib.h> +#include <vnet/vnet.h> +#include <vppinfra/error.h> +#include <vnet/buffer.h> +#include <vnet/ip/ip.h> +#include <vnet/ip/ip4.h> +#include <vnet/ip/ip4_packet.h> +#include <vnet/ip/format.h> +#include <vnet/ip/udp.h> + + +#include "cnat_config.h" +#include "cnat_global.h" +#include "cnat_v4_functions.h" +#include "tcp_header_definitions.h" +#include "cnat_v4_ftp_alg.h" +#include "cnat_logging.h" +#include "platform_common.h" + +#define CNAT_NFV9_DEBUG_CODE 2 +#if CNAT_NFV9_DEBUG_CODE > 3 + +#define NFV9_COND if ((my_instance_number != 0) && (my_instance_number != 15)) + +#define NFV9_DEBUG_PRINTF1(a) NFV9_COND printf(a); +#define NFV9_DEBUG_PRINTF2(a, b) NFV9_COND printf(a, b); +#define NFV9_DEBUG_PRINTF3(a, b, c) NFV9_COND printf(a, b, c); +#define NFV9_DEBUG_PRINTF4(a, b, c, d) NFV9_COND printf(a, b, c, d); + +#else + +#define NFV9_DEBUG_PRINTF1(a) +#define NFV9_DEBUG_PRINTF2(a, b) +#define NFV9_DEBUG_PRINTF3(a, b, c) +#define NFV9_DEBUG_PRINTF4(a, b, c, d) + +#endif + +static void cnat_nfv9_insert_ingress_vrfid_name_record(cnat_nfv9_logging_info_t *nfv9_logging_info, u16 index); +void cnat_nfv9_ingress_vrfid_name_mapping_create( + cnat_nfv9_logging_info_t *nfv9_logging_info); + + +cnat_nfv9_global_info_t cnat_nfv9_global_info; + +cnat_nfv9_template_t cnat_nfv9_template_info; + +#define CNAT_NFV9_OPTION_TEMPLATE cnat_nfv9_template_info.cnat_nfv9_option_template + +u16 cnat_template_id[MAX_RECORDS] = + {0, CNAT_NFV9_ADD_TEMPLATE_ID, CNAT_NFV9_DEL_TEMPLATE_ID, + CNAT_NFV9_NAT64_ADD_BIB_TEMPLATE_ID,CNAT_NFV9_NAT64_DEL_BIB_TEMPLATE_ID, + CNAT_NFV9_NAT64_ADD_SESSION_TEMPLATE_ID, + CNAT_NFV9_NAT64_DEL_SESSION_TEMPLATE_ID, + CNAT_NFV9_DS_LITE_ADD_TEMPLATE_ID, + CNAT_NFV9_DS_LITE_DEL_TEMPLATE_ID +#ifndef NO_BULK_LOGGING + , CNAT_NFV9_NAT44_BULK_ADD_TEMPLATE_ID, + CNAT_NFV9_NAT44_BULK_DEL_TEMPLATE_ID, + CNAT_NFV9_DS_LITE_BULK_ADD_TEMPLATE_ID, + CNAT_NFV9_DS_LITE_BULK_DEL_TEMPLATE_ID +#endif /* #ifndef NO_BULK_LOGGING */ + , CNAT_NFV9_INGRESS_VRF_ID_NAME_TEMPLATE_ID, + CNAT_NFV9_NAT44_ADD_SESSION_TEMPLATE_ID, + CNAT_NFV9_NAT44_DEL_SESSION_TEMPLATE_ID, + CNAT_NFV9_DS_LITE_ADD_SESSION_TEMPLATE_ID, + CNAT_NFV9_DS_LITE_DEL_SESSION_TEMPLATE_ID + }; + +/* + * Logging information structures + */ +cnat_nfv9_logging_info_t cnat_default_nfv9_logging_info; +cnat_nfv9_logging_info_t *cnat_nfv9_logging_info_pool; +#define NFV9_SERVER_POOL_SIZE 16 +nfv9_server_info_t *nfv9_server_info_pool; + +u32 nfv9_src_id = 0; + +u32 +cnat_get_sys_up_time_in_ms (void) +{ + vlib_main_t * vm = vlib_get_main(); + u32 cnat_curr_time; + + cnat_curr_time = (u32)vlib_time_now (vm); + return cnat_curr_time; +} + +void +cnat_dump_time_change_logs (void) +{ + return; +} + +inline void cnat_nfv9_handle_sys_time_change(time_t current_unix_time) +{ + return; + #if 0 + cnat_handle_sys_time_change(current_unix_time); + #endif +} + +void cnat_nfv9_update_sys_time_change() +{ + cnat_nfv9_logging_info_t *my_nfv9_logging_info = NULL; + pool_foreach (my_nfv9_logging_info, cnat_nfv9_logging_info_pool, ({ + nfv9_server_info_t *server = nfv9_server_info_pool + + my_nfv9_logging_info->server_index; + server->last_template_sent_time = 0; + })); +} + +void nfv9_params_show(u32 logging_index) +{ + cnat_nfv9_logging_info_t *log_info; + if(logging_index == EMPTY) { + PLATFORM_DEBUG_PRINT("\nNetflow logging not configured\n"); + return; + } + + log_info = cnat_nfv9_logging_info_pool + logging_index; + nfv9_server_info_t *server __attribute__((unused)) + = nfv9_server_info_pool + log_info->server_index; + + + PLATFORM_DEBUG_PRINT("\nNetflow parameters --\n"); + PLATFORM_DEBUG_PRINT("Server index %d IPV4 address: %x, port %d, max log size %d\n", + log_info->server_index, server->ipv4_address, + server->port, log_info->max_length_minus_max_record_size); + + PLATFORM_DEBUG_PRINT("Server ref count %d Refresh rate %d timeout rate %d\n", + server->ref_count, server->refresh_rate, + server->timeout_rate); + +} + +/* + * Code to dump NFV9 packets before they are sent + */ +void +cnat_nfv9_dump_logging_context (u32 value1, + cnat_nfv9_logging_info_t *nfv9_logging_info, + u32 value2) +{ + u8 *pkt_ptr; + u32 i; + u32 next_nfv9_template_data_index = 0xffff; + u32 next_data_flow_index = 0xffff; + u32 next_data_record = 0xffff; + u32 data_record_size = 0; + vlib_main_t *vm = vlib_get_main(); + + nfv9_server_info_t *server = nfv9_server_info_pool + + nfv9_logging_info->server_index; + + vlib_cli_output(vm,"\nDumping %s packet at locn %d: time 0x%x", + (value2 == 1) ? "CURRENT" : "QUEUED", + value1, + cnat_nfv9_get_unix_time_in_seconds()); + + vlib_cli_output(vm, "\ni_vrf 0x%x, ip_address 0x%x, port %d", + nfv9_logging_info->i_vrf, + server->ipv4_address, + server->port); + + vlib_cli_output(vm,"\nseq_num %d", + server->sequence_num); + + vlib_cli_output(vm,"\nlast_template_sent time 0x%x, pkts_since_last_template %d", + server->last_template_sent_time, + server->pkts_since_last_template); + + vlib_cli_output(vm, "\npkt_len %d, add_rec_len %d, del_rec_len %d, total_rec_count %d", + nfv9_logging_info->pkt_length, + nfv9_logging_info->record_length[NAT44_ADD_RECORD], + nfv9_logging_info->record_length[NAT44_DEL_RECORD], + nfv9_logging_info->total_record_count); + + vlib_cli_output(vm,"\nbulk_add_rec_len %d, bulk_del_rec_len %d", + nfv9_logging_info->record_length[NAT44_BULK_ADD_RECORD], + nfv9_logging_info->record_length[NAT44_BULK_DEL_RECORD]); + + vlib_cli_output(vm,"\ncurr_logging_ctx 0x%p, timestamp 0x%x, queued_logging_ctx 0x%p", + nfv9_logging_info->current_logging_context, + nfv9_logging_info->current_logging_context_timestamp, + nfv9_logging_info->queued_logging_context); + + vlib_cli_output(vm,"\nnfv9_hdr 0x%p, tmpl_hdr 0x%p, dataflow_hdr 0x%p", + nfv9_logging_info->nfv9_header, + nfv9_logging_info->nfv9_template_header, + nfv9_logging_info->dataflow_header); + + vlib_cli_output(vm,"\nadd_rec 0x%p, del_rec 0x%p, next_data_ptr 0x%p", + nfv9_logging_info->record[NAT44_ADD_RECORD], + nfv9_logging_info->record[NAT44_DEL_RECORD], + nfv9_logging_info->next_data_ptr); + + vlib_cli_output(vm,"\n"); + + pkt_ptr = vlib_buffer_get_current(nfv9_logging_info->current_logging_context); + /* + * Dump along with 8 bytes of SHIM header + */ + for (i = 0; i < (nfv9_logging_info->pkt_length + CNAT_NFV9_IP_HDR_OFFSET); + i = i + 1) { + u8 c1, c2, c3; + if (i == CNAT_NFV9_IP_HDR_OFFSET) { + vlib_cli_output(vm,"\nIP_HEADER: \n"); + } else if (i == CNAT_NFV9_UDP_HDR_OFFSET) { + vlib_cli_output(vm,"\nUDP_HEADER: \n"); + } else if (i == CNAT_NFV9_HDR_OFFSET) { + vlib_cli_output(vm,"\nNFV9 Header: Version:Count: \n"); + } else if (i == (CNAT_NFV9_HDR_OFFSET+4)) { + vlib_cli_output(vm,"\nBoot_Up_Time_In_ms: \n"); + } else if (i == (CNAT_NFV9_HDR_OFFSET+8)) { + vlib_cli_output(vm, "\nUNIX_Time: \n"); + } else if (i == (CNAT_NFV9_HDR_OFFSET+12)) { + vlib_cli_output(vm,"\nSeq_Num: \n"); + } else if (i == (CNAT_NFV9_HDR_OFFSET+16)) { + vlib_cli_output(vm,"\nSource ID: \n"); + } else if (i == (CNAT_NFV9_HDR_OFFSET+20)) { + if (nfv9_logging_info->nfv9_template_header) { + vlib_cli_output(vm,"\nNFV9 TEMPLATE HDR: \n"); + next_nfv9_template_data_index = i + 4; + } else { + next_data_flow_index = i; + } + } else if (i == (CNAT_NFV9_TEMPLATE_OFFSET+CNAT_NFV9_TEMPLATE_LENGTH)) { + if (nfv9_logging_info->nfv9_template_header) { + next_data_flow_index = i; + } + } + + if (i == next_nfv9_template_data_index) { + vlib_cli_output(vm,"\nNFV9 TEMPLATE DATA: \n"); + } else if (i == next_data_flow_index) { + if (*(pkt_ptr + i) == 0x01) { + if (*(pkt_ptr + i + 1) == 0x00) { + data_record_size = 21; + next_data_record = i + 4; + next_data_flow_index = i + *(pkt_ptr + i + 3) + + *(pkt_ptr + i + 2)*0x100; + vlib_cli_output(vm,"\nADD_RECORD (total %d): next_data_flow_index (%d->%d)\n", (next_data_flow_index - i), i, next_data_flow_index); + } else if (*(pkt_ptr + i + 1) == 0x01) { + data_record_size = 11; + next_data_record = i + 4; + next_data_flow_index = i + *(pkt_ptr + i + 3) + + *(pkt_ptr + i + 2)*0x100; + vlib_cli_output(vm,"\nDEL_RECORD (total %d) : next_data_flow_index (%d->%d)\n", (next_data_flow_index - i), i, next_data_flow_index); + } else if (*(pkt_ptr + i + 1) == 0x09) { + data_record_size = 20; + next_data_record = i + 4; + next_data_flow_index = i + *(pkt_ptr + i + 3) + + *(pkt_ptr + i + 2)*0x100; + vlib_cli_output(vm,"\nBULK_ADD_RECORD (total %d) : next_data_flow_index (%d->%d)\n", (next_data_flow_index - i), i, next_data_flow_index); + } else if (*(pkt_ptr + i + 1) == 0x0a) { + data_record_size = 10; + next_data_record = i + 4; + next_data_flow_index = i + *(pkt_ptr + i + 3) + + *(pkt_ptr + i + 2)*0x100; + vlib_cli_output(vm,"\nBULK_DEL_RECORD (total %d) : next_data_flow_index (%d->%d)\n", (next_data_flow_index - i), i, next_data_flow_index); + } + + } + } else if (i == next_data_record) { + vlib_cli_output(vm,"\n"); + next_data_record += data_record_size; + } + + c3 = *(pkt_ptr + i); + + c2 = c3 & 0xf; + c1 = (c3 >> 4) & 0xf; + + + vlib_cli_output(vm,"%c%c ", + ((c1 <= 9) ? (c1 + '0') : (c1 - 10 + 'a')), + ((c2 <= 9) ? (c2 + '0') : (c2 - 10 + 'a'))); + + } + vlib_cli_output(vm,"\n"); +} + +/* + * edt: * * cnat_nfv9_pad_added_to_an_addr + * + * Returns the difference (no# of bytes) between new_addr + * & org_addr + * + * Argument: u8 *new_addr, u8 *org_addr + * returns the difference + */ + +static inline +int cnat_nfv9_pad_added_to_an_addr(u8 *new_addr, u8 *org_addr) +{ + uword addr1 = (uword) new_addr; + uword addr2 = (uword) org_addr; + return (addr1 - addr2); +} + +/* + * edt: * * cnat_nfv9_add_end_of_record_padding + * + * Tries to add padding to data_ptr to ensure it is word aligned + * + * Argument: u8 * data_ptr + * pointer to the data pointer + */ + +static inline +u8 *cnat_nfv9_add_end_of_record_padding (u8 *data_ptr) +{ + uword tmp = (uword) data_ptr; + uword pad_value = (uword) NFV9_PAD_VALUE; + + tmp = (tmp + pad_value) & (~pad_value); + + return ((u8 *) tmp); +} + +/* + * edt: * * cnat_nfv9_pad_end_of_record_length + * + * Tries to add padding to data_ptr to ensure it is word aligned + * + * Argument: u8 * data_ptr + * pointer to the data pointer + */ + +static inline +u16 cnat_nfv9_pad_end_of_record_length (u16 record_length) +{ + u16 pad_value = NFV9_PAD_VALUE; + + return ((record_length + pad_value) & (~pad_value)); +} + +/* get first interface address */ +static ip4_address_t * +ip4_interface_first_address (ip4_main_t * im, u32 sw_if_index) +{ + ip_lookup_main_t * lm = &im->lookup_main; + ip_interface_address_t * ia = 0; + ip4_address_t * result = 0; + + foreach_ip_interface_address (lm, ia, sw_if_index, + 1 /* honor unnumbered */, + ({ + ip4_address_t * a = ip_interface_address_get_address (lm, ia); + result = a; + break; + })); + return result; +} + +void fill_ip_n_udp_hdr (u32 ipv4_addr, u16 port, + cnat_nfv9_logging_info_t *nfv9_logging_info) +{ + vlib_buffer_t * b0 = nfv9_logging_info->current_logging_context; + ipv4_header *ip_header = vlib_buffer_get_current(b0); + udp_hdr_type_t *udp_header = (udp_hdr_type_t *)((u8*)ip_header + sizeof(ipv4_header)); + vlib_main_t *vm = vlib_get_main(); + u16 ip_length __attribute__((unused)); + u16 pkt_len = nfv9_logging_info->pkt_length; + ip4_address_t *ia0 = 0; + u16 src_port = 0x0a0a; + + /* + * Clear the SHIM header fields. The PD nodes will set it + * appropriately. + */ + PLATFORM_MEMSET_CNAT_LOG_PKT_DATA + + /* + * Don't need a special define for 0x45 - IP version and hdr len + */ + ip_header->version_hdr_len_words = 0x45; + ip_header->tos = 0; + ip_header->frag_flags_offset = 0; + ip_header->ttl = 0xff; + ip_header->protocol = UDP_PROT; + ip_header->dest_addr = clib_host_to_net_u32(ipv4_addr); + ip_length = vlib_buffer_length_in_chain (vm, b0); + ip_header->total_len_bytes = clib_host_to_net_u16(pkt_len); + ia0 = ip4_interface_first_address(&ip4_main, nfv9_logging_info->i_vrf_id); + ip_header->src_addr = ia0->as_u32; + udp_header->src_port = clib_host_to_net_u16(src_port); + udp_header->dest_port = clib_host_to_net_u16(port); + udp_header->udp_checksum = 0; + udp_header->udp_length = + clib_host_to_net_u16(pkt_len - sizeof(ipv4_header)); + ip_header->checksum = ip4_header_checksum((ip4_header_t *)ip_header); +} + +/* + * edt: * * cnat_nfv9_fill_nfv9_ip_header + * + * Tries to fill the fields of the IP header before it + * is sent to the L3 infra node. + * + * Argument: cnat_nfv9_logging_info_t *nfv9_logging_info + * structure that contains the packet context + */ + +static inline +void cnat_nfv9_fill_nfv9_ip_header (cnat_nfv9_logging_info_t *nfv9_logging_info) +{ + u16 new_record_length = 0; + u16 orig_record_length = 0; + vlib_buffer_t * b0 = nfv9_logging_info->current_logging_context; + + /* + * Fill in the IP header and port number of the Netflow collector + * The L3 Infra node will fill in the rest of the fields + */ + + nfv9_logging_info->nfv9_header->count = + clib_host_to_net_u16(nfv9_logging_info->total_record_count); + + /* + * Pad the last add/del record to ensure multiple of 4 bytes + */ + + if(nfv9_logging_info->last_record != RECORD_INVALID) { + + orig_record_length = + nfv9_logging_info->record_length[nfv9_logging_info->last_record]; + + new_record_length = cnat_nfv9_pad_end_of_record_length( + orig_record_length); + + nfv9_logging_info->dataflow_header->dataflow_length = + clib_host_to_net_u16(new_record_length); + } + + /* + * If the record is padded, ensure the padded bytes are ZERO + */ + if (PREDICT_TRUE(new_record_length - orig_record_length)) { + u8 *pkt_ptr = (u8 *) (b0 + nfv9_logging_info->pkt_length); + + /* + * Blindly copy 3 bytes of data to Zero to avoid for loops + * We have sufficient padding bytes for safety and we won't + * go over buffer limits + */ + *pkt_ptr++ = 0; + *pkt_ptr++ = 0; + *pkt_ptr++ = 0; + + nfv9_logging_info->pkt_length += + (new_record_length - orig_record_length); + } + nfv9_server_info_t *server = nfv9_server_info_pool + + nfv9_logging_info->server_index; + fill_ip_n_udp_hdr(server->ipv4_address, + server->port, nfv9_logging_info); + /* + * It is important to set the sw_if_index for the new buffer create + */ + vnet_buffer(b0)->sw_if_index[VLIB_TX] = (u32)~0; + +} + +/* + * edt: * * cnat_nfv9_send_queued_pkt + * + * Tries to send a logging pkt that has been queued earlier + * because it could not be sent due to downstream constipation + * + * Argument: cnat_nfv9_logging_info_t *nfv9_logging_info + * structure that contains the packet context + */ + +static inline +void cnat_nfv9_send_queued_pkt (cnat_nfv9_logging_info_t *nfv9_logging_info) +{ + return; +} + +/* + * edt: * * cnat_nfv9_send_pkt + * + * Tries to send a logging pkt. If the packet cannot be sent + * because of rewrite_output node cannot process it, queue + * it temporarily and try to send it later. + * + * Argument: cnat_nfv9_logging_info_t *nfv9_logging_info + * structure that contains the packet context + */ + +static inline +void cnat_nfv9_send_pkt (cnat_nfv9_logging_info_t *nfv9_logging_info) +{ + cnat_nfv9_fill_nfv9_ip_header(nfv9_logging_info); + + nfv9_server_info_t *server = nfv9_server_info_pool + + nfv9_logging_info->server_index; + + /* Update sequence number just before sending. + * So that, multiple NAT44/NAT64/DSLite instances sharing a + * a single server instance can stamp the sequence number + * in the right sequence (as seen by the server). + */ + server->sequence_num += 1; + nfv9_logging_info->nfv9_header->sequence_num = + clib_host_to_net_u32(server->sequence_num); + +#if DEBUG + cnat_nfv9_dump_logging_context (2, nfv9_logging_info, 1); +#endif +#if 0 /* commented out below */ + send_vpp3_nfv9_pkt(nfv9_logging_info); +#endif + nfv9_logging_info->current_logging_context = NULL; + /* + * Increase last packet sent count + */ + server->pkts_since_last_template++; + + /* + * If we are sending an nfv9 tempate with this packet + * log this timestamp + */ + if (nfv9_logging_info->nfv9_template_header) { + server->last_template_sent_time = + cnat_nfv9_get_unix_time_in_seconds(); + server->pkts_since_last_template = 0; + } + + return; +} + +/* + * send_vpp3_nfv9_pkt: to send multiple b0 in a frame + */ + +static inline +void send_vpp3_nfv9_pkt (cnat_nfv9_logging_info_t *nfv9_logging_info) +{ + vlib_node_t *output_node; + vlib_main_t *vm = vlib_get_main(); + vlib_frame_t *f; + vlib_buffer_t *b0; + u32 *to_next; + u32 bi=0; + ipv4_header *ip; + + //Lets check and send it to ip4-lookup node + output_node = vlib_get_node_by_name (vm, (u8 *) "ip4-lookup"); + f = vlib_get_frame_to_node (vm, output_node->index); + + if ( nfv9_logging_info->current_logging_context != NULL) { + /* Build a pkt from whole cloth */ + b0 = nfv9_logging_info->current_logging_context; + ip = vlib_buffer_get_current(b0); + to_next = vlib_frame_vector_args (f); + bi = vlib_get_buffer_index (vm, b0); + to_next[0] = bi; + + f->n_vectors = 1; + b0->current_length = clib_net_to_host_u16(ip->total_len_bytes); + vlib_put_frame_to_node (vm, output_node->index, f); + } + return; +} +/* + * edt: * * cnat_nfv9_send_pkt_always_success + * + * Tries to send a logging pkt. This cannot fail due to downstream + * constipation because we have already checked if the rewrite_output + * node can accept it. + * + * Argument: cnat_nfv9_logging_info_t *nfv9_logging_info + * structure that contains the packet context + * + * Argument: vlib_node_t *output_node + * vlib_node_t structure for rewrite_output node + */ + +static inline +void cnat_nfv9_send_pkt_always_success ( + cnat_nfv9_logging_info_t *nfv9_logging_info, + vlib_node_t *output_node) +{ + nfv9_server_info_t *server = nfv9_server_info_pool + + nfv9_logging_info->server_index; + vlib_main_t * vm = vlib_get_main(); + + /* + * At this point we either have a current or queued logging context + */ + if (PREDICT_TRUE(nfv9_logging_info->current_logging_context != NULL)) { + server->sequence_num += 1; + nfv9_logging_info->nfv9_header->sequence_num = + clib_host_to_net_u32(server->sequence_num); + cnat_nfv9_fill_nfv9_ip_header(nfv9_logging_info); + + nfv9_logging_info->current_logging_context->current_length = + nfv9_logging_info->pkt_length; + vlib_cli_output(vm, "\nNFV9: 3. Sending Current packet\n"); +#if DEBUG + cnat_nfv9_dump_logging_context (3, nfv9_logging_info, 1); +#endif + send_vpp3_nfv9_pkt(nfv9_logging_info); + nfv9_logging_info->current_logging_context = NULL; + } else { + /* + * For queued logging context, nfv9_header-> count is already set + */ + nfv9_logging_info->queued_logging_context->current_length = + nfv9_logging_info->pkt_length; + vlib_cli_output(vm,"\nNFV9: 4. Sending Queued packet\n"); +#if DEBUG + cnat_nfv9_dump_logging_context (4, nfv9_logging_info, 2); +#endif + send_vpp3_nfv9_pkt(nfv9_logging_info); + + nfv9_logging_info->queued_logging_context = NULL; + } + + /* + * NF Logging info already deleted, just free it and return + */ + if (PREDICT_FALSE(nfv9_logging_info->deleted)) { + pool_put(cnat_nfv9_logging_info_pool, nfv9_logging_info); + return; + } + + /* + * Increase last packet sent count and timestamp + */ + server->pkts_since_last_template++; + + /* + * If we are sending an nfv9 tempate with this packet + * log this timestamp + */ + if (nfv9_logging_info->nfv9_template_header) { + server->last_template_sent_time = + cnat_nfv9_get_unix_time_in_seconds(); + server->pkts_since_last_template = 0; + } +} + +/* + * edt: * * cnat_nfv9_create_logging_context + * + * Tries to create a logging context with packet buffer + * to send a new logging packet + * + * Argument: cnat_nfv9_logging_info_t *nfv9_logging_info + * structure that contains the nfv9 logging info and will store + * the packet context as well. + */ + +static inline +void cnat_nfv9_create_logging_context ( + cnat_nfv9_logging_info_t *nfv9_logging_info, + cnat_nfv9_template_add_flag_t template_flag) +{ + vlib_main_t *vm = vlib_get_main(); + vlib_buffer_t *b0; + static u32 bi; + u8 i; + + /* + * If queued_logging_context_index is non-EMPTY, we already have a logging + * packet queued to be sent. First try sending this before allocating + * a new context. We can have only one active packet context per + * nfv9_logging_info structure + */ + if (PREDICT_FALSE(nfv9_logging_info->queued_logging_context != NULL)) { + cnat_nfv9_send_queued_pkt(nfv9_logging_info); + /* + * If we cannot still send the queued pkt, just return + * Downstream Constipation count would have increased anyway + */ + if (nfv9_logging_info->queued_logging_context != NULL) { + cnat_global_counters.nfv9_logging_context_creation_deferred_count++; + return; + } + } + + + /* + * No context can be allocated, return silently + * calling routine will handle updating the error counters + */ + if (vlib_buffer_alloc (vm, &bi, 1) != 1) { + vlib_cli_output(vm, "buffer allocation failure"); + return; + } + /* Build a pkt from whole cloth */ + b0 = vlib_get_buffer (vm, bi); + b0->current_data = 0; + + nfv9_server_info_t *server = nfv9_server_info_pool + + nfv9_logging_info->server_index; + + nfv9_logging_info->current_logging_context = b0; + nfv9_logging_info->current_logging_context_timestamp = + cnat_nfv9_get_sys_up_time_in_ms(); + + + nfv9_logging_info->nfv9_header = + (nfv9_header_t *) (vlib_buffer_get_current(b0) + + (sizeof(ipv4_header)) + + (sizeof(udp_hdr_type_t))); + + nfv9_logging_info->nfv9_header->version = + clib_host_to_net_u16(CNAT_NFV9_VERSION_NUMBER); + + nfv9_logging_info->nfv9_header->sys_up_time = + clib_host_to_net_u32(cnat_nfv9_get_sys_up_time_in_ms()); + + nfv9_logging_info->nfv9_header->timestamp = + clib_host_to_net_u32(cnat_nfv9_get_unix_time_in_seconds()); + + + nfv9_logging_info->nfv9_header->source_id = + clib_host_to_net_u32(nfv9_src_id); + + nfv9_logging_info->dataflow_header = 0; + + for(i = 0; i < MAX_RECORDS;i++) { + nfv9_logging_info->record[i] = NULL; + nfv9_logging_info->record_length[i] = 0; + } + nfv9_logging_info->last_record = 0; + + + nfv9_logging_info->nfv9_template_header = 0; + nfv9_logging_info->next_data_ptr = + (u8 *) (vlib_buffer_get_current(b0) + + sizeof(ipv4_header) + sizeof(udp_hdr_type_t) + + sizeof(nfv9_header_t)); + + nfv9_logging_info->pkt_length = (CNAT_NFV9_TEMPLATE_OFFSET - + CNAT_NFV9_IP_HDR_OFFSET); + + + /* + * Now we have 0 records to start with + */ + + nfv9_logging_info->total_record_count = 0; + + if ((template_flag == cnat_nfv9_template_add_always) || + (server->pkts_since_last_template > + server->refresh_rate) || + ((cnat_nfv9_get_unix_time_in_seconds() - + server->last_template_sent_time) > + server->timeout_rate)) { + + /* + * Send a new template + */ + nfv9_logging_info->nfv9_template_header = + (cnat_nfv9_template_t *) nfv9_logging_info->next_data_ptr; + + clib_memcpy(nfv9_logging_info->nfv9_template_header, + &cnat_nfv9_template_info, + sizeof(cnat_nfv9_template_info)); + + /* + * Templates are sent irrespective of particular service-type config + */ + nfv9_logging_info->total_record_count = MAX_RECORDS - 1; + + nfv9_logging_info->pkt_length += CNAT_NFV9_TEMPLATE_LENGTH; + + /* + * Set the data pointer beyond the template field + */ + nfv9_logging_info->next_data_ptr = + (u8 *) (nfv9_logging_info->nfv9_template_header + 1); + /* + * Setting template_sent flag as TRUE. this will be checked in + * handle_vrfid_name_mapping() + */ + server->template_sent = TEMPLATE_SENT_TRUE; + } +} + +void cnat_nfv9_record_create ( + cnat_nfv9_logging_info_t *nfv9_logging_info, u16 cur_record) +{ + int byte_diff = 0; + u16 last_record = nfv9_logging_info->last_record; + + if(last_record != 0 && last_record != cur_record) { + u16 orig_length, new_length; + + orig_length = nfv9_logging_info->record_length[last_record]; + new_length = cnat_nfv9_pad_end_of_record_length(orig_length); + + /* + * The padding bytes are required after the last record + * Ensure length of last record accounts for padding bytes + */ + nfv9_logging_info->dataflow_header->dataflow_length = + clib_host_to_net_u16(new_length); + + /* + * Since we are working on the del record, set add record to 0 + */ + nfv9_logging_info->record[last_record] = 0; + + nfv9_logging_info->record_length[last_record] = 0; + + nfv9_logging_info->last_record = 0; + } + + nfv9_logging_info->last_record = cur_record; + + /* + * The padding bytes are required after the last record + * Ensure that we skip over the padding bytes + */ + nfv9_logging_info->dataflow_header = (nfv9_dataflow_record_header_t *) + cnat_nfv9_add_end_of_record_padding(nfv9_logging_info->next_data_ptr); + /* + * Get the difference + */ + byte_diff = cnat_nfv9_pad_added_to_an_addr( + (u8 *)nfv9_logging_info->dataflow_header, + nfv9_logging_info->next_data_ptr); + if(byte_diff > 0) { + /* + * Update the packet length to account for the pad bytes + */ + nfv9_logging_info->pkt_length += byte_diff; + u8 *pkt_ptr = nfv9_logging_info->next_data_ptr; + + /* + * Blindly copy 3 bytes of data to Zero to avoid for loops + * We have sufficient padding bytes for safety and we won't + * go over buffer limits + */ + *pkt_ptr++ = 0; + *pkt_ptr++ = 0; + *pkt_ptr++ = 0; + } + /* + * Initialize the template_id and the length of the add record + */ + nfv9_logging_info->dataflow_header->dataflow_template_id = + clib_host_to_net_u16(cnat_template_id[cur_record]); + + nfv9_logging_info->record[cur_record] = + (u8 *) (nfv9_logging_info->dataflow_header + 1); + + nfv9_logging_info->record_length[cur_record] = + CNAT_NFV9_DATAFLOW_RECORD_HEADER_LENGTH; + + /* + * Update the length of the total NFV9 record + */ + nfv9_logging_info->pkt_length += + CNAT_NFV9_DATAFLOW_RECORD_HEADER_LENGTH; + + /* + * Set the data pointer beyond the dataflow header field + */ + nfv9_logging_info->next_data_ptr = + (u8 *) (nfv9_logging_info->dataflow_header + 1); + +} + +static void cnat_nfv9_insert_add_record( + cnat_nfv9_logging_info_t *nfv9_logging_info, + cnat_main_db_entry_t *db, + cnat_vrfmap_t *vrfmap) +{ + u16 my_proto_mask; + u8 my_protocol; + nfv9_add_record_t nfv9_logging_add_record; + if (PREDICT_FALSE(nfv9_logging_info->record[NAT44_ADD_RECORD] == NULL)) { + cnat_nfv9_record_create(nfv9_logging_info, NAT44_ADD_RECORD); + } + + /* + * We should definitely have add_record now, no need to sanitize + */ + + nfv9_logging_add_record.inside_vrf_id = + clib_host_to_net_u32(vrfmap->i_vrf_id); + + nfv9_logging_add_record.outside_vrf_id = + clib_host_to_net_u32(vrfmap->o_vrf_id); + + nfv9_logging_add_record.inside_ip_addr = + clib_host_to_net_u32(db->in2out_key.k.ipv4); + nfv9_logging_add_record.outside_ip_addr = + clib_host_to_net_u32(db->out2in_key.k.ipv4); + + nfv9_logging_add_record.inside_ip_port = + clib_host_to_net_u16(db->in2out_key.k.port); + nfv9_logging_add_record.outside_ip_port = + clib_host_to_net_u16(db->out2in_key.k.port); + + my_proto_mask = db->in2out_key.k.vrf & CNAT_PRO_MASK; + my_protocol = ((my_proto_mask == CNAT_UDP) ? UDP_PROT : + ((my_proto_mask == CNAT_TCP) ? TCP_PROT : + ((my_proto_mask == CNAT_ICMP) ? ICMP_PROT : GRE_PROT))); + + nfv9_logging_add_record.protocol = my_protocol; + + clib_memcpy(nfv9_logging_info->record[NAT44_ADD_RECORD], + &nfv9_logging_add_record, CNAT_NFV9_ADD_RECORD_LENGTH); + + nfv9_logging_info->record_length[NAT44_ADD_RECORD] + += CNAT_NFV9_ADD_RECORD_LENGTH; + + nfv9_logging_info->pkt_length += CNAT_NFV9_ADD_RECORD_LENGTH; + + nfv9_logging_info->record[NAT44_ADD_RECORD] + += CNAT_NFV9_ADD_RECORD_LENGTH; + nfv9_logging_info->next_data_ptr = + nfv9_logging_info->record[NAT44_ADD_RECORD]; + + nfv9_logging_info->dataflow_header->dataflow_length = + clib_host_to_net_u32( + nfv9_logging_info->record_length[NAT44_ADD_RECORD]); + +} + + +static void cnat_nfv9_ds_lite_insert_add_record( + cnat_nfv9_logging_info_t *nfv9_logging_info, + cnat_main_db_entry_t *db, + dslite_table_entry_t *dslite_entry) +{ + + nfv9_ds_lite_add_record_t nfv9_logging_add_record = {0}; + cnat_user_db_entry_t *udb = NULL; + u16 my_proto_mask; + u8 my_protocol; + + udb = cnat_user_db + db->user_index; + if (PREDICT_FALSE(!udb)) { + return; + } + if (PREDICT_FALSE(nfv9_logging_info->record[DS_LITE_ADD_RECORD] == NULL)) { + cnat_nfv9_record_create(nfv9_logging_info, DS_LITE_ADD_RECORD); + } + /* + * We should definitely have add_record now, no need to sanitize + */ + nfv9_logging_add_record.inside_vrf_id = + clib_host_to_net_u32(dslite_entry->i_vrf_id); + nfv9_logging_add_record.outside_vrf_id = + clib_host_to_net_u32(dslite_entry->o_vrf_id); + +#ifdef DSLITE_USER_IPV4 + nfv9_logging_add_record.inside_ip_addr = + clib_host_to_net_u32(db->in2out_key.k.ipv4); +#else + /* + * Inside ipv4 address is sent as 0.0.0.0 for ds-lite case as + * ipv6 is user here. + */ + nfv9_logging_add_record.inside_ip_addr = 0; +#endif + + nfv9_logging_add_record.inside_v6_src_addr[0] = + clib_host_to_net_u32(udb->ipv6[0]); + nfv9_logging_add_record.inside_v6_src_addr[1] = + clib_host_to_net_u32(udb->ipv6[1]); + nfv9_logging_add_record.inside_v6_src_addr[2] = + clib_host_to_net_u32(udb->ipv6[2]); + nfv9_logging_add_record.inside_v6_src_addr[3] = + clib_host_to_net_u32(udb->ipv6[3]); + + nfv9_logging_add_record.outside_ip_addr = + clib_host_to_net_u32(db->out2in_key.k.ipv4); + + nfv9_logging_add_record.inside_ip_port = + clib_host_to_net_u16(db->in2out_key.k.port); + nfv9_logging_add_record.outside_ip_port = + clib_host_to_net_u16(db->out2in_key.k.port); + + my_proto_mask = db->in2out_key.k.vrf & CNAT_PRO_MASK; + + my_protocol = ((my_proto_mask == CNAT_UDP) ? UDP_PROT : + ((my_proto_mask == CNAT_TCP) ? TCP_PROT : + ((my_proto_mask == CNAT_ICMP) ? ICMP_PROT : 0))); + nfv9_logging_add_record.protocol = my_protocol; + + clib_memcpy(nfv9_logging_info->record[DS_LITE_ADD_RECORD], + &nfv9_logging_add_record, CNAT_NFV9_DS_LITE_ADD_RECORD_LENGTH); + + nfv9_logging_info->record_length[DS_LITE_ADD_RECORD] + += CNAT_NFV9_DS_LITE_ADD_RECORD_LENGTH; + + nfv9_logging_info->pkt_length += CNAT_NFV9_DS_LITE_ADD_RECORD_LENGTH; + nfv9_logging_info->total_record_count += 1; + + nfv9_logging_info->record[DS_LITE_ADD_RECORD] + += CNAT_NFV9_DS_LITE_ADD_RECORD_LENGTH; + nfv9_logging_info->next_data_ptr = + nfv9_logging_info->record[DS_LITE_ADD_RECORD]; + + nfv9_logging_info->dataflow_header->dataflow_length = + clib_host_to_net_u32( + nfv9_logging_info->record_length[DS_LITE_ADD_RECORD]); +} + + +static void cnat_nfv9_ds_lite_insert_del_record( + cnat_nfv9_logging_info_t *nfv9_logging_info, + cnat_main_db_entry_t *db, + dslite_table_entry_t *dslite_entry) +{ + + nfv9_ds_lite_del_record_t nfv9_logging_del_record = {0}; + cnat_user_db_entry_t *udb = NULL; + u16 my_proto_mask; + u8 my_protocol; + + udb = cnat_user_db + db->user_index; + if (PREDICT_FALSE(!udb)) { + return; + } + if (PREDICT_FALSE(nfv9_logging_info->record[DS_LITE_DEL_RECORD] == NULL)) { + cnat_nfv9_record_create(nfv9_logging_info, DS_LITE_DEL_RECORD); + } + /* + * We should definitely have a del record now. + * No need to sanitize + */ + nfv9_logging_del_record.inside_vrf_id = + clib_host_to_net_u32(dslite_entry->i_vrf_id); + +#ifdef DSLITE_USER_IPV4 + nfv9_logging_del_record.inside_ip_addr = + clib_host_to_net_u32(db->in2out_key.k.ipv4); +#else + /* + * Inside ipv4 address is sent as 0.0.0.0 for ds-lite case as + * ipv6 is user here. + */ + nfv9_logging_del_record.inside_ip_addr = 0; +#endif + + nfv9_logging_del_record.inside_v6_src_addr[0] = + clib_host_to_net_u32(udb->ipv6[0]); + nfv9_logging_del_record.inside_v6_src_addr[1] = + clib_host_to_net_u32(udb->ipv6[1]); + nfv9_logging_del_record.inside_v6_src_addr[2] = + clib_host_to_net_u32(udb->ipv6[2]); + nfv9_logging_del_record.inside_v6_src_addr[3] = + clib_host_to_net_u32(udb->ipv6[3]); + + nfv9_logging_del_record.inside_ip_port = + clib_host_to_net_u16(db->in2out_key.k.port); + + my_proto_mask = db->in2out_key.k.vrf & CNAT_PRO_MASK; + + my_protocol = ((my_proto_mask == CNAT_UDP) ? UDP_PROT : + ((my_proto_mask == CNAT_TCP) ? TCP_PROT : + ((my_proto_mask == CNAT_ICMP) ? ICMP_PROT : 0))); + nfv9_logging_del_record.protocol = my_protocol; + + clib_memcpy(nfv9_logging_info->record[DS_LITE_DEL_RECORD], + &nfv9_logging_del_record, CNAT_NFV9_DS_LITE_DEL_RECORD_LENGTH); + + nfv9_logging_info->record_length[DS_LITE_DEL_RECORD] += + CNAT_NFV9_DS_LITE_DEL_RECORD_LENGTH; + + nfv9_logging_info->pkt_length += CNAT_NFV9_DS_LITE_DEL_RECORD_LENGTH; + nfv9_logging_info->total_record_count += 1; + + nfv9_logging_info->record[DS_LITE_DEL_RECORD] + += CNAT_NFV9_DS_LITE_DEL_RECORD_LENGTH; + nfv9_logging_info->next_data_ptr = + nfv9_logging_info->record[DS_LITE_DEL_RECORD]; + + nfv9_logging_info->dataflow_header->dataflow_length = + clib_host_to_net_u32( + nfv9_logging_info->record_length[DS_LITE_DEL_RECORD]); +} + +#ifndef NO_BULK_LOGGING +static void cnat_nfv9_insert_bulk_add_record( + cnat_nfv9_logging_info_t *nfv9_logging_info, + cnat_main_db_entry_t *db, + cnat_vrfmap_t *vrfmap, + int bulk_alloc_start_port) +{ + nfv9_bulk_add_record_t nfv9_logging_bulk_add_record; + bulk_alloc_size_t bulk_size = BULKSIZE_FROM_VRFMAP(vrfmap); + if (PREDICT_FALSE(nfv9_logging_info->record[NAT44_BULK_ADD_RECORD] == NULL)) { + cnat_nfv9_record_create(nfv9_logging_info, NAT44_BULK_ADD_RECORD); + } + + /* + * We should definitely have add_record now, no need to sanitize + */ + + nfv9_logging_bulk_add_record.inside_vrf_id = + clib_host_to_net_u32(vrfmap->i_vrf_id); + nfv9_logging_bulk_add_record.outside_vrf_id = + clib_host_to_net_u32(vrfmap->o_vrf_id); + + nfv9_logging_bulk_add_record.inside_ip_addr = + clib_host_to_net_u32(db->in2out_key.k.ipv4); + nfv9_logging_bulk_add_record.outside_ip_addr = + clib_host_to_net_u32(db->out2in_key.k.ipv4); + + nfv9_logging_bulk_add_record.outside_ip_port_start = + clib_host_to_net_u16(bulk_alloc_start_port); + nfv9_logging_bulk_add_record.outside_ip_port_end = + clib_host_to_net_u16(bulk_alloc_start_port + bulk_size -1); + + clib_memcpy(nfv9_logging_info->record[NAT44_BULK_ADD_RECORD], + &nfv9_logging_bulk_add_record, CNAT_NFV9_BULK_ADD_RECORD_LENGTH); + + nfv9_logging_info->record_length[NAT44_BULK_ADD_RECORD] + += CNAT_NFV9_BULK_ADD_RECORD_LENGTH; + + nfv9_logging_info->pkt_length += CNAT_NFV9_BULK_ADD_RECORD_LENGTH; + + nfv9_logging_info->record[NAT44_BULK_ADD_RECORD] + += CNAT_NFV9_BULK_ADD_RECORD_LENGTH; + nfv9_logging_info->next_data_ptr = + nfv9_logging_info->record[NAT44_BULK_ADD_RECORD]; + + nfv9_logging_info->dataflow_header->dataflow_length = + clib_host_to_net_u32( + nfv9_logging_info->record_length[NAT44_BULK_ADD_RECORD]); + +} + + +static void cnat_nfv9_ds_lite_insert_bulk_add_record( + cnat_nfv9_logging_info_t *nfv9_logging_info, + cnat_main_db_entry_t *db, + dslite_table_entry_t *dslite_entry, + int bulk_alloc_start_port) +{ + + nfv9_ds_lite_bulk_add_record_t nfv9_logging_bulk_add_record = {0}; + cnat_user_db_entry_t *udb = NULL; + bulk_alloc_size_t bulk_size = BULKSIZE_FROM_VRFMAP(dslite_entry); + + if (PREDICT_FALSE(nfv9_logging_info->record[DS_LITE_BULK_ADD_RECORD] == NULL)) { + cnat_nfv9_record_create(nfv9_logging_info, DS_LITE_BULK_ADD_RECORD); + } + udb = cnat_user_db + db->user_index; + if (PREDICT_FALSE(!udb)) { + return; + } + /* + * We should definitely have add_record now, no need to sanitize + */ + + nfv9_logging_bulk_add_record.inside_vrf_id = + clib_host_to_net_u32(dslite_entry->i_vrf_id); + nfv9_logging_bulk_add_record.outside_vrf_id = + clib_host_to_net_u32(dslite_entry->o_vrf_id); + +#ifdef DSLITE_USER_IPV4 + nfv9_logging_bulk_add_record.inside_ip_addr = + clib_host_to_net_u32(db->in2out_key.k.ipv4); +#else + /* + * Inside ipv4 address is sent as 0.0.0.0 for ds-lite case as + * ipv6 is user here. + */ + nfv9_logging_bulk_add_record.inside_ip_addr = 0; +#endif + + nfv9_logging_bulk_add_record.inside_v6_src_addr[0] = + clib_host_to_net_u32(udb->ipv6[0]); + nfv9_logging_bulk_add_record.inside_v6_src_addr[1] = + clib_host_to_net_u32(udb->ipv6[1]); + nfv9_logging_bulk_add_record.inside_v6_src_addr[2] = + clib_host_to_net_u32(udb->ipv6[2]); + nfv9_logging_bulk_add_record.inside_v6_src_addr[3] = + clib_host_to_net_u32(udb->ipv6[3]); + + nfv9_logging_bulk_add_record.outside_ip_addr = + clib_host_to_net_u32(db->out2in_key.k.ipv4); + + nfv9_logging_bulk_add_record.outside_ip_port_start = + clib_host_to_net_u16(bulk_alloc_start_port); + nfv9_logging_bulk_add_record.outside_ip_port_end = + clib_host_to_net_u16(bulk_alloc_start_port + bulk_size -1); + + clib_memcpy(nfv9_logging_info->record[DS_LITE_BULK_ADD_RECORD], + &nfv9_logging_bulk_add_record, CNAT_NFV9_DS_LITE_BULK_ADD_RECORD_LENGTH); + + nfv9_logging_info->record_length[DS_LITE_BULK_ADD_RECORD] + += CNAT_NFV9_DS_LITE_BULK_ADD_RECORD_LENGTH; + + nfv9_logging_info->pkt_length += CNAT_NFV9_DS_LITE_BULK_ADD_RECORD_LENGTH; + nfv9_logging_info->total_record_count += 1; + nfv9_logging_info->record[DS_LITE_BULK_ADD_RECORD] + += CNAT_NFV9_DS_LITE_BULK_ADD_RECORD_LENGTH; + nfv9_logging_info->next_data_ptr = + nfv9_logging_info->record[DS_LITE_BULK_ADD_RECORD]; + nfv9_logging_info->dataflow_header->dataflow_length = + clib_host_to_net_u32( + nfv9_logging_info->record_length[DS_LITE_BULK_ADD_RECORD]); +} + + +static void cnat_nfv9_ds_lite_insert_bulk_del_record( + cnat_nfv9_logging_info_t *nfv9_logging_info, + cnat_main_db_entry_t *db, + dslite_table_entry_t *dslite_entry, + int bulk_alloc_start_port) +{ + + nfv9_ds_lite_bulk_del_record_t nfv9_logging_bulk_del_record = {0}; + cnat_user_db_entry_t *udb = NULL; + + if (PREDICT_FALSE(nfv9_logging_info->record[DS_LITE_BULK_DEL_RECORD] == NULL)) { + cnat_nfv9_record_create(nfv9_logging_info, DS_LITE_BULK_DEL_RECORD); + } + udb = cnat_user_db + db->user_index; + if (PREDICT_FALSE(!udb)) { + return; + } + /* + * We should definitely have add_record now, no need to sanitize + */ + + nfv9_logging_bulk_del_record.inside_vrf_id = + clib_host_to_net_u32(dslite_entry->i_vrf_id); + +#ifdef DSLITE_USER_IPV4 + nfv9_logging_bulk_del_record.inside_ip_addr = + clib_host_to_net_u32(db->in2out_key.k.ipv4); +#else + nfv9_logging_bulk_del_record.inside_ip_addr = + clib_host_to_net_u32(0); +#endif + + nfv9_logging_bulk_del_record.inside_v6_src_addr[0] = + clib_host_to_net_u32(udb->ipv6[0]); + nfv9_logging_bulk_del_record.inside_v6_src_addr[1] = + clib_host_to_net_u32(udb->ipv6[1]); + nfv9_logging_bulk_del_record.inside_v6_src_addr[2] = + clib_host_to_net_u32(udb->ipv6[2]); + nfv9_logging_bulk_del_record.inside_v6_src_addr[3] = + clib_host_to_net_u32(udb->ipv6[3]); + + nfv9_logging_bulk_del_record.outside_ip_port_start = + clib_host_to_net_u16(bulk_alloc_start_port); + + clib_memcpy(nfv9_logging_info->record[DS_LITE_BULK_DEL_RECORD], + &nfv9_logging_bulk_del_record, + CNAT_NFV9_DS_LITE_BULK_DEL_RECORD_LENGTH); + nfv9_logging_info->record_length[DS_LITE_BULK_DEL_RECORD] += + CNAT_NFV9_DS_LITE_BULK_DEL_RECORD_LENGTH; + nfv9_logging_info->pkt_length += + CNAT_NFV9_DS_LITE_BULK_DEL_RECORD_LENGTH; + nfv9_logging_info->total_record_count += 1; + nfv9_logging_info->record[DS_LITE_BULK_DEL_RECORD] += + CNAT_NFV9_DS_LITE_BULK_DEL_RECORD_LENGTH; + nfv9_logging_info->next_data_ptr = + nfv9_logging_info->record[DS_LITE_BULK_DEL_RECORD]; + nfv9_logging_info->dataflow_header->dataflow_length = + clib_host_to_net_u32( + nfv9_logging_info->record_length[DS_LITE_BULK_DEL_RECORD]); +} +#endif /* #ifndef NO_BULK_LOGGING */ + +static void cnat_nfv9_insert_del_record( + cnat_nfv9_logging_info_t *nfv9_logging_info, + cnat_main_db_entry_t *db, + cnat_vrfmap_t *vrfmap) +{ + u16 my_proto_mask; + u8 my_protocol; + nfv9_del_record_t nfv9_logging_del_record; + + if (PREDICT_FALSE(nfv9_logging_info->record[NAT44_DEL_RECORD] == NULL)) { + cnat_nfv9_record_create(nfv9_logging_info, NAT44_DEL_RECORD); + } + + /* + * We should definitely have add_record now, no need to sanitize + */ + + nfv9_logging_del_record.inside_vrf_id = + clib_host_to_net_u32(vrfmap->i_vrf_id); + + nfv9_logging_del_record.inside_ip_addr = + clib_host_to_net_u32(db->in2out_key.k.ipv4); + + nfv9_logging_del_record.inside_ip_port = + clib_host_to_net_u16(db->in2out_key.k.port); + + my_proto_mask = db->in2out_key.k.vrf & CNAT_PRO_MASK; + my_protocol = ((my_proto_mask == CNAT_UDP) ? UDP_PROT : + ((my_proto_mask == CNAT_TCP) ? TCP_PROT : + ((my_proto_mask == CNAT_ICMP) ? ICMP_PROT : GRE_PROT))); + + nfv9_logging_del_record.protocol = my_protocol; + + clib_memcpy(nfv9_logging_info->record[NAT44_DEL_RECORD], + &nfv9_logging_del_record, CNAT_NFV9_DEL_RECORD_LENGTH); + + nfv9_logging_info->record_length[NAT44_DEL_RECORD] + += CNAT_NFV9_DEL_RECORD_LENGTH; + + nfv9_logging_info->pkt_length += CNAT_NFV9_DEL_RECORD_LENGTH; + + nfv9_logging_info->record[NAT44_DEL_RECORD] + += CNAT_NFV9_DEL_RECORD_LENGTH; + nfv9_logging_info->next_data_ptr = + nfv9_logging_info->record[NAT44_DEL_RECORD]; + + nfv9_logging_info->dataflow_header->dataflow_length = + clib_host_to_net_u32( + nfv9_logging_info->record_length[NAT44_DEL_RECORD]); + +} + +#ifndef NO_BULK_LOGGING +static void cnat_nfv9_insert_bulk_del_record( + cnat_nfv9_logging_info_t *nfv9_logging_info, + cnat_main_db_entry_t *db, + cnat_vrfmap_t *vrfmap, + int bulk_alloc_start_port) +{ + nfv9_bulk_del_record_t nfv9_logging_bulk_del_record; + if (PREDICT_FALSE(nfv9_logging_info->record[NAT44_BULK_DEL_RECORD] == NULL)) { + cnat_nfv9_record_create(nfv9_logging_info, NAT44_BULK_DEL_RECORD); + } + + /* + * We should definitely have add_record now, no need to sanitize + */ + + nfv9_logging_bulk_del_record.inside_vrf_id = + clib_host_to_net_u32(vrfmap->i_vrf_id); + + nfv9_logging_bulk_del_record.inside_ip_addr = + clib_host_to_net_u32(db->in2out_key.k.ipv4); + + nfv9_logging_bulk_del_record.outside_ip_port_start = + clib_host_to_net_u16(bulk_alloc_start_port); + + clib_memcpy(nfv9_logging_info->record[NAT44_BULK_DEL_RECORD], + &nfv9_logging_bulk_del_record, CNAT_NFV9_BULK_DEL_RECORD_LENGTH); + + nfv9_logging_info->record_length[NAT44_BULK_DEL_RECORD] + += CNAT_NFV9_BULK_DEL_RECORD_LENGTH; + + nfv9_logging_info->pkt_length += CNAT_NFV9_BULK_DEL_RECORD_LENGTH; + + nfv9_logging_info->record[NAT44_BULK_DEL_RECORD] + += CNAT_NFV9_BULK_DEL_RECORD_LENGTH; + nfv9_logging_info->next_data_ptr = + nfv9_logging_info->record[NAT44_BULK_DEL_RECORD]; + + nfv9_logging_info->dataflow_header->dataflow_length = + clib_host_to_net_u32( + nfv9_logging_info->record_length[NAT44_BULK_DEL_RECORD]); + +} + +#endif /* #ifndef NO_BULK_LOGGING */ +/* + * edt: * * cnat_nfv9_log_mapping_create + * + * Tries to log a creation of mapping record + * + * Argument: cnat_main_db_entry_t *db + * Main DB entry being created + * + * Argument: cnat_vrfmap_t *vrfmap + * VRF Map for the Main DB entry being created + */ +void cnat_nfv9_log_mapping_create (cnat_main_db_entry_t *db, + cnat_vrfmap_t *vrfmap +#ifndef NO_BULK_LOGGING + , int bulk_alloc +#endif + ) +{ + cnat_nfv9_logging_info_t *nfv9_logging_info = 0; + vlib_main_t * vm = vlib_get_main(); + + if (PREDICT_FALSE(vrfmap->nfv9_logging_index == EMPTY)) { + + //vlib_cli_output(vm, "\n1. Log Mapping failed"); + /* + * No logging configured, silently return + */ + return; + } + + if (cnat_nfv9_logging_info_pool == NULL) { + vlib_cli_output(vm, "%s: info_pool pointer is NULL !!!!\n", __func__); + return; + } + nfv9_logging_info = + cnat_nfv9_logging_info_pool + vrfmap->nfv9_logging_index; + + if (PREDICT_FALSE(nfv9_logging_info->current_logging_context == NULL)) { + cnat_nfv9_create_logging_context(nfv9_logging_info, + cnat_nfv9_template_add_default); + + /* + * If still empty, return after increasing the count + */ + if (PREDICT_FALSE(nfv9_logging_info->current_logging_context == NULL)) { + //vlib_cli_output(vm, "\n2. Log Mapping failed"); + return; + } + + } + +#ifndef NO_BULK_LOGGING + if(bulk_alloc > 0) { /* new bulk alloc - use bulk add template */ + cnat_nfv9_insert_bulk_add_record(nfv9_logging_info, db, vrfmap, + bulk_alloc); + } else if(bulk_alloc == CACHE_ALLOC_NO_LOG_REQUIRED) + return; /* No logging required.. bulk port usage */ + else /* Individual logging .. fall back to old method */ +#endif + cnat_nfv9_insert_add_record(nfv9_logging_info, db, vrfmap); + + nfv9_logging_info->total_record_count += 1; + + /* + * If we have exceeded the packet length, let us send the + * packet now. There is buffer of additional bytes beyond + * max_pkt_length to ensure that the last add/delete record + * can be stored safely. + */ + if (PREDICT_FALSE(nfv9_logging_info->pkt_length > + nfv9_logging_info->max_length_minus_max_record_size)) { + cnat_nfv9_send_pkt(nfv9_logging_info); + } +} + +/* + * edt: * * cnat_nfv9_log_mapping_delete + * + * Tries to log a deletion of mapping record + * + * Argument: cnat_main_db_entry_t *db + * Main DB entry being deleted + * + * Argument: cnat_vrfmap_t *vrfmap + * VRF Map for the Main DB entry being deleted + */ +void cnat_nfv9_log_mapping_delete (cnat_main_db_entry_t * db, + cnat_vrfmap_t *vrfmap +#ifndef NO_BULK_LOGGING + , int bulk_alloc +#endif + ) +{ + cnat_nfv9_logging_info_t *nfv9_logging_info = 0; + + if (PREDICT_FALSE(vrfmap->nfv9_logging_index == EMPTY)) { + //vlib_cli_output(vm, "\n3. Log Mapping failed"); + /* + * No logging configured, silently return + */ + return; + } + + nfv9_logging_info = + cnat_nfv9_logging_info_pool + vrfmap->nfv9_logging_index; + + if (PREDICT_FALSE(nfv9_logging_info->current_logging_context == NULL)) { + cnat_nfv9_create_logging_context(nfv9_logging_info, + cnat_nfv9_template_add_default); + + /* + * If still empty, return after increasing the count + */ + if (PREDICT_FALSE(nfv9_logging_info->current_logging_context == NULL)) { + //vlib_cli_output(vm, "\n4. Log Mapping failed"); + return; + } + } +#ifndef NO_BULK_LOGGING + if(bulk_alloc > 0) { /* new bulk alloc - use bulk add template */ + cnat_nfv9_insert_bulk_del_record(nfv9_logging_info, db, vrfmap, + bulk_alloc); + } else if(bulk_alloc == CACHE_ALLOC_NO_LOG_REQUIRED) + return; /* No logging required.. bulk port usage */ + else /* Individual logging .. fall back to old method */ +#endif + cnat_nfv9_insert_del_record(nfv9_logging_info, db, vrfmap); + + nfv9_logging_info->total_record_count += 1; + + /* + * If we have exceeded the packet length, let us send the + * packet now. There is buffer of additional bytes beyond + * max_pkt_length to ensure that the last add/delete record + * can be stored safely. + */ + if (PREDICT_FALSE(nfv9_logging_info->pkt_length > + nfv9_logging_info->max_length_minus_max_record_size)) { + cnat_nfv9_send_pkt(nfv9_logging_info); + } +} + + +/* NAT64 Related routines */ + +/* + * edt: * * cnat_nfv9_bib_mapping_create + * + * Tries to log a creation of Bib mapping record + * + * Argument: nat64_bib_entry_t *db + * BIB DB entry being created + * + * Argument: nat64_table_entry_t *nat64_entry + * NAT64 Instance where this BIB belongs + */ +void cnat_nfv9_bib_mapping_create (nat64_bib_entry_t *db, + nat64_table_entry_t *nat64_entry) +{ + cnat_nfv9_logging_info_t *nfv9_logging_info = 0; + u16 my_proto_mask; + u8 my_protocol; + nfv9_nat64_add_bib_record_t nfv9_logging_add_record; + + if (PREDICT_FALSE(nat64_entry->logging_index == EMPTY)) { + /* + * No logging configured, silently return + */ + return; + } + + nfv9_logging_info = + cnat_nfv9_logging_info_pool + nat64_entry->logging_index; + + + if (PREDICT_FALSE(nfv9_logging_info->current_logging_context == NULL)) { + cnat_nfv9_create_logging_context(nfv9_logging_info, + cnat_nfv9_template_add_default); + + /* + * If still empty, return after increasing the count + */ + if (PREDICT_FALSE(nfv9_logging_info->current_logging_context == NULL)) { + return; + } + } + + if (PREDICT_FALSE(nfv9_logging_info->record[NAT64_ADD_BIB_RECORD] == NULL)){ + cnat_nfv9_record_create(nfv9_logging_info,NAT64_ADD_BIB_RECORD); + } + + + nfv9_logging_add_record.inside_v6_src_addr[0] = + clib_host_to_net_u32(db->v6_in_key.ipv6[0]); + nfv9_logging_add_record.inside_v6_src_addr[1] = + clib_host_to_net_u32(db->v6_in_key.ipv6[1]); + nfv9_logging_add_record.inside_v6_src_addr[2] = + clib_host_to_net_u32(db->v6_in_key.ipv6[2]); + nfv9_logging_add_record.inside_v6_src_addr[3] = + clib_host_to_net_u32(db->v6_in_key.ipv6[3]); + + + nfv9_logging_add_record.outside_v4_src_addr = + clib_host_to_net_u32(db->v4_out_key.k.ipv4); + + nfv9_logging_add_record.inside_src_port = + clib_host_to_net_u16(db->v6_in_key.port); + nfv9_logging_add_record.outside_src_port = + clib_host_to_net_u16(db->v4_out_key.k.port); + + my_proto_mask = db->v6_in_key.vrf & CNAT_PRO_MASK; + + my_protocol = ((my_proto_mask == CNAT_UDP) ? UDP_PROT : + ((my_proto_mask == CNAT_TCP) ? TCP_PROT : + ((my_proto_mask == CNAT_ICMP) ? IPV6_PROTO_ICMPV6 : 0))); + nfv9_logging_add_record.protocol = my_protocol; + + + clib_memcpy(nfv9_logging_info->record[NAT64_ADD_BIB_RECORD], + &nfv9_logging_add_record, CNAT_NFV9_NAT64_ADD_BIB_RECORD_LENGTH); + + nfv9_logging_info->record_length[NAT64_ADD_BIB_RECORD] += + CNAT_NFV9_NAT64_ADD_BIB_RECORD_LENGTH; + nfv9_logging_info->pkt_length += CNAT_NFV9_NAT64_ADD_BIB_RECORD_LENGTH; + nfv9_logging_info->total_record_count += 1; + + nfv9_logging_info->record[NAT64_ADD_BIB_RECORD] + += CNAT_NFV9_NAT64_ADD_BIB_RECORD_LENGTH; + + nfv9_logging_info->next_data_ptr = + nfv9_logging_info->record[NAT64_ADD_BIB_RECORD]; + + nfv9_logging_info->dataflow_header->dataflow_length = + clib_host_to_net_u32( + nfv9_logging_info->record_length[NAT64_ADD_BIB_RECORD]); + + /* + * If we have exceeded the packet length, let us send the + * packet now. There is buffer of additional bytes beyond + * max_pkt_length to ensure that the last add/delete record + * can be stored safely. + */ + if (PREDICT_FALSE(nfv9_logging_info->pkt_length > + nfv9_logging_info->max_length_minus_max_record_size)) { + cnat_nfv9_send_pkt(nfv9_logging_info); + } +} + + +/* + * edt: * * cnat_nfv9_session_mapping_create + * + * Tries to log a creation of Bib mapping record + * + * Argument: nat64_bib_entry_t *bdb + * BIB DB entry for the session that is created + * + * Argument: nat64_session_entry_t *sdb + * Session DB entry being created + * + * Argument: nat64_table_entry_t *nat64_entry + * NAT64 Instance where this BIB and Session belongs + */ +void cnat_nfv9_session_mapping_create (nat64_bib_entry_t *bdb, + nat64_session_entry_t *sdb, + nat64_table_entry_t *nat64_entry_ptr) +{ + cnat_nfv9_logging_info_t *nfv9_logging_info = 0; + u16 my_proto_mask; + u8 my_protocol; + u32 dest_v6[4]; + nfv9_nat64_add_session_record_t nfv9_logging_add_record; + u8 *ipv6_addr_ptr; + u8 *ipv4_addr_ptr; + + + if (PREDICT_FALSE(nat64_entry_ptr->logging_index == EMPTY)) { + /* + * No logging configured, silently return + */ + return; + } + + nfv9_logging_info = + cnat_nfv9_logging_info_pool + nat64_entry_ptr->logging_index; + + + if (PREDICT_FALSE(nfv9_logging_info->current_logging_context == NULL)) { + cnat_nfv9_create_logging_context(nfv9_logging_info, + cnat_nfv9_template_add_default); + + /* + * If still empty, return after increasing the count + */ + if (PREDICT_FALSE(nfv9_logging_info->current_logging_context == NULL)){ + return; + } + } + + if (PREDICT_FALSE(nfv9_logging_info->record[NAT64_ADD_SESSION_RECORD] + == NULL)){ + cnat_nfv9_record_create(nfv9_logging_info, NAT64_ADD_SESSION_RECORD); + } + + + nfv9_logging_add_record.inside_v6_src_addr[0] = + clib_host_to_net_u32(bdb->v6_in_key.ipv6[0]); + nfv9_logging_add_record.inside_v6_src_addr[1] = + clib_host_to_net_u32(bdb->v6_in_key.ipv6[1]); + nfv9_logging_add_record.inside_v6_src_addr[2] = + clib_host_to_net_u32(bdb->v6_in_key.ipv6[2]); + nfv9_logging_add_record.inside_v6_src_addr[3] = + clib_host_to_net_u32(bdb->v6_in_key.ipv6[3]); + + + nfv9_logging_add_record.outside_v4_src_addr = + clib_host_to_net_u32(bdb->v4_out_key.k.ipv4); + + + nfv9_logging_add_record.outside_v4_dest_addr = + clib_host_to_net_u32(sdb->v4_dest_key.k.ipv4); + + /* Need to create the V6 address using prefix */ + dest_v6[0] = nat64_entry_ptr->v6_prefix[0]; + dest_v6[1] = nat64_entry_ptr->v6_prefix[1]; + dest_v6[2] = nat64_entry_ptr->v6_prefix[2]; + dest_v6[3] = nat64_entry_ptr->v6_prefix[3]; + + ipv6_addr_ptr = (u8 *) (&(dest_v6[0])); + ipv4_addr_ptr = (u8 *) (&(sdb->v4_dest_key.k.ipv4)); + + *(ipv6_addr_ptr + nat64_entry_ptr->octet0_position) = *(ipv4_addr_ptr); + *(ipv6_addr_ptr + nat64_entry_ptr->octet1_position) = *(ipv4_addr_ptr + 1); + *(ipv6_addr_ptr + nat64_entry_ptr->octet2_position) = *(ipv4_addr_ptr + 2); + *(ipv6_addr_ptr + nat64_entry_ptr->octet3_position) = *(ipv4_addr_ptr + 3); + + nfv9_logging_add_record.inside_v6_dest_addr[0] = + clib_host_to_net_u32(dest_v6[0]); + nfv9_logging_add_record.inside_v6_dest_addr[1] = + clib_host_to_net_u32(dest_v6[1]); + nfv9_logging_add_record.inside_v6_dest_addr[2] = + clib_host_to_net_u32(dest_v6[2]); + nfv9_logging_add_record.inside_v6_dest_addr[3] = + clib_host_to_net_u32(dest_v6[3]); + + nfv9_logging_add_record.outside_v4_dest_addr = + clib_host_to_net_u32(sdb->v4_dest_key.k.ipv4); + + nfv9_logging_add_record.inside_src_port = + clib_host_to_net_u16(bdb->v6_in_key.port); + nfv9_logging_add_record.outside_src_port = + clib_host_to_net_u16(bdb->v4_out_key.k.port); + + nfv9_logging_add_record.dest_port = + clib_host_to_net_u16(sdb->v4_dest_key.k.port); + + + my_proto_mask = bdb->v6_in_key.vrf & CNAT_PRO_MASK; + + my_protocol = ((my_proto_mask == CNAT_UDP) ? UDP_PROT : + ((my_proto_mask == CNAT_TCP) ? TCP_PROT : + ((my_proto_mask == CNAT_ICMP) ? IPV6_PROTO_ICMPV6 : 0))); + nfv9_logging_add_record.protocol = my_protocol; + + + clib_memcpy(nfv9_logging_info->record[NAT64_ADD_SESSION_RECORD], + &nfv9_logging_add_record, CNAT_NFV9_NAT64_ADD_SESSION_RECORD_LENGTH); + + nfv9_logging_info->record_length[NAT64_ADD_SESSION_RECORD] += + CNAT_NFV9_NAT64_ADD_SESSION_RECORD_LENGTH; + nfv9_logging_info->pkt_length += CNAT_NFV9_NAT64_ADD_SESSION_RECORD_LENGTH; + nfv9_logging_info->total_record_count += 1; + + nfv9_logging_info->record[NAT64_ADD_SESSION_RECORD] + += CNAT_NFV9_NAT64_ADD_SESSION_RECORD_LENGTH; + + nfv9_logging_info->next_data_ptr = + nfv9_logging_info->record[NAT64_ADD_SESSION_RECORD]; + + nfv9_logging_info->dataflow_header->dataflow_length = + clib_host_to_net_u32( + nfv9_logging_info->record_length[NAT64_ADD_SESSION_RECORD]); + + /* + * If we have exceeded the packet length, let us send the + * packet now. There is buffer of additional bytes beyond + * max_pkt_length to ensure that the last add/delete record + * can be stored safely. + */ + if (PREDICT_FALSE(nfv9_logging_info->pkt_length > + nfv9_logging_info->max_length_minus_max_record_size)) { + cnat_nfv9_send_pkt(nfv9_logging_info); + } +} + + +/* + * edt: * * cnat_nfv9_bib_mapping_delete + * + * Tries to log a deletion of Bib mapping record + * + * Argument: nat64_bib_entry_t *db + * BIB DB entry being created + * + * Argument: nat64_table_entry_t *nat64_entry + * NAT64 Instance where this BIB belongs + */ +void cnat_nfv9_bib_mapping_delete (nat64_bib_entry_t *db, + nat64_table_entry_t *nat64_entry) +{ + cnat_nfv9_logging_info_t *nfv9_logging_info = 0; + u16 my_proto_mask; + u8 my_protocol; + nfv9_nat64_del_bib_record_t nfv9_logging_del_record; + if (PREDICT_FALSE(nat64_entry->logging_index == EMPTY)) { + /* + * No logging configured, silently return + */ + return; + } + + nfv9_logging_info = + cnat_nfv9_logging_info_pool + nat64_entry->logging_index; + + + if (PREDICT_FALSE(nfv9_logging_info->current_logging_context == NULL)) { + cnat_nfv9_create_logging_context(nfv9_logging_info, + cnat_nfv9_template_add_default); + + /* + * If still empty, return after increasing the count + */ + if (PREDICT_FALSE(nfv9_logging_info->current_logging_context == NULL)){ + return; + } + } + + if (PREDICT_FALSE(nfv9_logging_info->record[NAT64_DEL_BIB_RECORD] == NULL)){ + cnat_nfv9_record_create(nfv9_logging_info,NAT64_DEL_BIB_RECORD); + } + + + nfv9_logging_del_record.inside_v6_src_addr[0] = + clib_host_to_net_u32(db->v6_in_key.ipv6[0]); + nfv9_logging_del_record.inside_v6_src_addr[1] = + clib_host_to_net_u32(db->v6_in_key.ipv6[1]); + nfv9_logging_del_record.inside_v6_src_addr[2] = + clib_host_to_net_u32(db->v6_in_key.ipv6[2]); + nfv9_logging_del_record.inside_v6_src_addr[3] = + clib_host_to_net_u32(db->v6_in_key.ipv6[3]); + + + nfv9_logging_del_record.inside_src_port = + clib_host_to_net_u16(db->v6_in_key.port); + + my_proto_mask = db->v6_in_key.vrf & CNAT_PRO_MASK; + + my_protocol = ((my_proto_mask == CNAT_UDP) ? UDP_PROT : + ((my_proto_mask == CNAT_TCP) ? TCP_PROT : + ((my_proto_mask == CNAT_ICMP) ? IPV6_PROTO_ICMPV6 : 0))); + nfv9_logging_del_record.protocol = my_protocol; + + + clib_memcpy(nfv9_logging_info->record[NAT64_DEL_BIB_RECORD], + &nfv9_logging_del_record, CNAT_NFV9_NAT64_DEL_BIB_RECORD_LENGTH); + + nfv9_logging_info->record_length[NAT64_DEL_BIB_RECORD] += + CNAT_NFV9_NAT64_DEL_BIB_RECORD_LENGTH; + nfv9_logging_info->pkt_length += CNAT_NFV9_NAT64_DEL_BIB_RECORD_LENGTH; + nfv9_logging_info->total_record_count += 1; + + nfv9_logging_info->record[NAT64_DEL_BIB_RECORD] + += CNAT_NFV9_NAT64_DEL_BIB_RECORD_LENGTH; + + nfv9_logging_info->next_data_ptr = + nfv9_logging_info->record[NAT64_DEL_BIB_RECORD]; + + nfv9_logging_info->dataflow_header->dataflow_length = + clib_host_to_net_u32( + nfv9_logging_info->record_length[NAT64_DEL_BIB_RECORD]); + + /* + * If we have exceeded the packet length, let us send the + * packet now. There is buffer of additional bytes beyond + * max_pkt_length to ensure that the last add/delete record + * can be stored safely. + */ + if (PREDICT_FALSE(nfv9_logging_info->pkt_length > + nfv9_logging_info->max_length_minus_max_record_size)) { + cnat_nfv9_send_pkt(nfv9_logging_info); + } +} + + +/* + * edt: * * cnat_nfv9_session_mapping_delete + * + * Tries to log a deletion of Bib mapping record + * + * Argument: nat64_bib_entry_t *bdb + * BIB DB entry for the session that is created + * + * Argument: nat64_session_entry_t *sdb + * Session DB entry being created + * + * Argument: nat64_table_entry_t *nat64_entry + * NAT64 Instance where this BIB and Session belongs + */ +void cnat_nfv9_session_mapping_delete (nat64_bib_entry_t *bdb, + nat64_session_entry_t *sdb, + nat64_table_entry_t *nat64_entry_ptr) +{ + cnat_nfv9_logging_info_t *nfv9_logging_info = 0; + u16 my_proto_mask; + u8 my_protocol; + u32 dest_v6[4]; + nfv9_nat64_del_session_record_t nfv9_logging_del_record; + u8 *ipv6_addr_ptr; + u8 *ipv4_addr_ptr; + + if (PREDICT_FALSE(nat64_entry_ptr->logging_index == EMPTY)) { + /* + * No logging configured, silently return + */ + return; + } + + nfv9_logging_info = + cnat_nfv9_logging_info_pool + nat64_entry_ptr->logging_index; + + + if (PREDICT_FALSE(nfv9_logging_info->current_logging_context == NULL)) { + cnat_nfv9_create_logging_context(nfv9_logging_info, + cnat_nfv9_template_add_default); + + /* + * If still empty, return after increasing the count + */ + if (PREDICT_FALSE(nfv9_logging_info->current_logging_context == NULL)){ + return; + } + } + + if (PREDICT_FALSE(nfv9_logging_info->record[NAT64_DEL_SESSION_RECORD] + == NULL)){ + cnat_nfv9_record_create(nfv9_logging_info, NAT64_DEL_SESSION_RECORD); + } + + + nfv9_logging_del_record.inside_v6_src_addr[0] = + clib_host_to_net_u32(bdb->v6_in_key.ipv6[0]); + nfv9_logging_del_record.inside_v6_src_addr[1] = + clib_host_to_net_u32(bdb->v6_in_key.ipv6[1]); + nfv9_logging_del_record.inside_v6_src_addr[2] = + clib_host_to_net_u32(bdb->v6_in_key.ipv6[2]); + nfv9_logging_del_record.inside_v6_src_addr[3] = + clib_host_to_net_u32(bdb->v6_in_key.ipv6[3]); + + /* Need to create the V6 address using prefix */ + dest_v6[0] = nat64_entry_ptr->v6_prefix[0]; + dest_v6[1] = nat64_entry_ptr->v6_prefix[1]; + dest_v6[2] = nat64_entry_ptr->v6_prefix[2]; + dest_v6[3] = nat64_entry_ptr->v6_prefix[3]; + + ipv6_addr_ptr = (u8 *) (&(dest_v6[0])); + ipv4_addr_ptr = (u8 *) (&(sdb->v4_dest_key.k.ipv4)); + + *(ipv6_addr_ptr + nat64_entry_ptr->octet0_position) = *(ipv4_addr_ptr); + *(ipv6_addr_ptr + nat64_entry_ptr->octet1_position) = *(ipv4_addr_ptr + 1); + *(ipv6_addr_ptr + nat64_entry_ptr->octet2_position) = *(ipv4_addr_ptr + 2); + *(ipv6_addr_ptr + nat64_entry_ptr->octet3_position) = *(ipv4_addr_ptr + 3); + + nfv9_logging_del_record.inside_v6_dest_addr[0] = + clib_host_to_net_u32(dest_v6[0]); + nfv9_logging_del_record.inside_v6_dest_addr[1] = + clib_host_to_net_u32(dest_v6[1]); + nfv9_logging_del_record.inside_v6_dest_addr[2] = + clib_host_to_net_u32(dest_v6[2]); + nfv9_logging_del_record.inside_v6_dest_addr[3] = + clib_host_to_net_u32(dest_v6[3]); + + nfv9_logging_del_record.inside_src_port = + clib_host_to_net_u16(bdb->v6_in_key.port); + + nfv9_logging_del_record.dest_port = + clib_host_to_net_u16(sdb->v4_dest_key.k.port); + + + my_proto_mask = bdb->v6_in_key.vrf & CNAT_PRO_MASK; + + my_protocol = ((my_proto_mask == CNAT_UDP) ? UDP_PROT : + ((my_proto_mask == CNAT_TCP) ? TCP_PROT : + ((my_proto_mask == CNAT_ICMP) ? IPV6_PROTO_ICMPV6 : 0))); + nfv9_logging_del_record.protocol = my_protocol; + + clib_memcpy(nfv9_logging_info->record[NAT64_DEL_SESSION_RECORD], + &nfv9_logging_del_record, CNAT_NFV9_NAT64_DEL_SESSION_RECORD_LENGTH); + + nfv9_logging_info->record_length[NAT64_DEL_SESSION_RECORD] += + CNAT_NFV9_NAT64_DEL_SESSION_RECORD_LENGTH; + nfv9_logging_info->pkt_length += CNAT_NFV9_NAT64_DEL_SESSION_RECORD_LENGTH; + nfv9_logging_info->total_record_count += 1; + + nfv9_logging_info->record[NAT64_DEL_SESSION_RECORD] + += CNAT_NFV9_NAT64_DEL_SESSION_RECORD_LENGTH; + + nfv9_logging_info->next_data_ptr = + nfv9_logging_info->record[NAT64_DEL_SESSION_RECORD]; + + nfv9_logging_info->dataflow_header->dataflow_length = + clib_host_to_net_u32( + nfv9_logging_info->record_length[NAT64_DEL_SESSION_RECORD]); + + /* + * If we have exceeded the packet length, let us send the + * packet now. There is buffer of additional bytes beyond + * max_pkt_length to ensure that the last add/delete record + * can be stored safely. + */ + if (PREDICT_FALSE(nfv9_logging_info->pkt_length > + nfv9_logging_info->max_length_minus_max_record_size)) { + cnat_nfv9_send_pkt(nfv9_logging_info); + } +} + +/* + * edt: * * cnat_nfv9_nat44_log_session_create + * + * Tries to log a creation of mapping record (session based) + * + * Argument: cnat_main_db_entry_t *db + * Main DB entry being created + * Arugment: cnat_session_entry_t *sdb + * Session DB entry if the destination is not the first dest + * Argument: cnat_vrfmap_t *vrfmap + * VRF Map for the Main DB entry being created + */ + +void cnat_nfv9_nat44_log_session_create(cnat_main_db_entry_t *db, + cnat_session_entry_t *sdb, + cnat_vrfmap_t *vrfmap) +{ + cnat_nfv9_logging_info_t *nfv9_logging_info = 0; + u16 my_proto_mask; + u8 my_protocol; + nfv9_add_session_record_t nfv9_logging_add_session_record; + + if (PREDICT_FALSE(vrfmap->nfv9_logging_index == EMPTY)) { + //vlib_cli_output(vm,"\n1. Log Mapping failed"); + /* + * No logging configured, silently return + */ + return; + } + + nfv9_logging_info = + cnat_nfv9_logging_info_pool + vrfmap->nfv9_logging_index; + + if (PREDICT_FALSE(nfv9_logging_info->current_logging_context == NULL)) { + cnat_nfv9_create_logging_context(nfv9_logging_info, + cnat_nfv9_template_add_default); + + /* + * If still empty, return after increasing the count + */ + if (PREDICT_FALSE(nfv9_logging_info->current_logging_context == NULL)) { + //vlib_cli_output(vm,"\n2. Log Mapping failed"); + return; + } + } + + if(PREDICT_FALSE(nfv9_logging_info->record[ + NAT44_ADD_SESSION_RECORD] == NULL)) { + cnat_nfv9_record_create(nfv9_logging_info, NAT44_ADD_SESSION_RECORD); + } + + /* + * We should definitely have add_record now, no need to sanitize + */ + nfv9_logging_add_session_record.inside_vrf_id = + clib_host_to_net_u32(vrfmap->i_vrf_id); + nfv9_logging_add_session_record.outside_vrf_id = + clib_host_to_net_u32(vrfmap->o_vrf_id); + + nfv9_logging_add_session_record.inside_ip_addr = + clib_host_to_net_u32(db->in2out_key.k.ipv4); + nfv9_logging_add_session_record.outside_ip_addr = + clib_host_to_net_u32(db->out2in_key.k.ipv4); + + /* If sdb is null, it is assumed that logging is being done + * for the first destination which is held in the main db + + * itself + */ + if(PREDICT_TRUE(sdb == NULL)) { + nfv9_logging_add_session_record.dest_ip_addr = + clib_host_to_net_u32(db->dst_ipv4); + nfv9_logging_add_session_record.dest_port = + clib_host_to_net_u16(db->dst_port); + } else { + nfv9_logging_add_session_record.dest_ip_addr = + clib_host_to_net_u32(sdb->v4_dest_key.k.ipv4); + nfv9_logging_add_session_record.dest_port = + clib_host_to_net_u16(sdb->v4_dest_key.k.port); + } + + nfv9_logging_add_session_record.inside_ip_port = + clib_host_to_net_u16(db->in2out_key.k.port); + nfv9_logging_add_session_record.outside_ip_port = + clib_host_to_net_u16(db->out2in_key.k.port); + + + my_proto_mask = db->in2out_key.k.vrf & CNAT_PRO_MASK; + + my_protocol = ((my_proto_mask == CNAT_UDP) ? UDP_PROT : + ((my_proto_mask == CNAT_TCP) ? TCP_PROT : + ((my_proto_mask == CNAT_ICMP) ? ICMP_PROT : GRE_PROT))); + nfv9_logging_add_session_record.protocol = my_protocol; + + clib_memcpy(nfv9_logging_info->record[NAT44_ADD_SESSION_RECORD], + &nfv9_logging_add_session_record, + CNAT_NFV9_NAT44_ADD_SESSION_RECORD_LENGTH); + + nfv9_logging_info->record_length[NAT44_ADD_SESSION_RECORD] + += CNAT_NFV9_NAT44_ADD_SESSION_RECORD_LENGTH; + nfv9_logging_info->pkt_length += CNAT_NFV9_NAT44_ADD_SESSION_RECORD_LENGTH; + nfv9_logging_info->total_record_count += 1; + + + nfv9_logging_info->record[NAT44_ADD_SESSION_RECORD] + += CNAT_NFV9_NAT44_ADD_SESSION_RECORD_LENGTH; + + nfv9_logging_info->next_data_ptr = + nfv9_logging_info->record[NAT44_ADD_SESSION_RECORD]; + + nfv9_logging_info->dataflow_header->dataflow_length = + clib_host_to_net_u32( + nfv9_logging_info->record_length[NAT44_ADD_SESSION_RECORD]); + + /* + * If we have exceeded the packet length, let us send the + * packet now. There is buffer of additional bytes beyond + * max_pkt_length to ensure that the last add/delete record + * can be stored safely. + */ + if (PREDICT_FALSE(nfv9_logging_info->pkt_length > + nfv9_logging_info->max_length_minus_max_record_size)) { + cnat_nfv9_send_pkt(nfv9_logging_info); + } +} + +/* + * edt: * * cnat_nfv9_nat44_log_session_delete + * + * Tries to log a deletion of mapping record (session based) + * + * Argument: cnat_main_db_entry_t *db + * Main DB entry being created + * Arugment: cnat_session_entry_t *sdb + * Session DB entry if the destination is not the first dest + * Argument: cnat_vrfmap_t *vrfmap + * VRF Map for the Main DB entry being deleted + */ + +void cnat_nfv9_nat44_log_session_delete(cnat_main_db_entry_t *db, + cnat_session_entry_t *sdb, + cnat_vrfmap_t *vrfmap) +{ + cnat_nfv9_logging_info_t *nfv9_logging_info = 0; + u16 my_proto_mask; + u8 my_protocol; + nfv9_del_session_record_t nfv9_logging_del_session_record; + + if (PREDICT_FALSE(vrfmap->nfv9_logging_index == EMPTY)) { + //vlib_cli_output(vm, "\n1. Log Mapping failed"); + /* + * No logging configured, silently return + */ + return; + } + + nfv9_logging_info = + cnat_nfv9_logging_info_pool + vrfmap->nfv9_logging_index; + + if (PREDICT_FALSE(nfv9_logging_info->current_logging_context == NULL)) { + cnat_nfv9_create_logging_context(nfv9_logging_info, + cnat_nfv9_template_add_default); + + /* + * If still empty, return after increasing the count + */ + if (PREDICT_FALSE(nfv9_logging_info->current_logging_context == NULL)) { + //vlib_cli_output(vm, "\n2. Log Mapping failed"); + return; + } + } + + if(PREDICT_FALSE(nfv9_logging_info->record[ + NAT44_DEL_SESSION_RECORD] == NULL)) { + cnat_nfv9_record_create(nfv9_logging_info, NAT44_DEL_SESSION_RECORD); + } + + /* + * We should definitely have add_record now, no need to sanitize + */ + nfv9_logging_del_session_record.inside_vrf_id = + clib_host_to_net_u32(vrfmap->i_vrf_id); + + nfv9_logging_del_session_record.inside_ip_addr = + clib_host_to_net_u32(db->in2out_key.k.ipv4); + + /* If sdb is null, it is assumed that logging is being done + * for the first destination which is held in the main db + * itself + */ + if(PREDICT_TRUE(sdb == NULL)) { + nfv9_logging_del_session_record.dest_ip_addr = + clib_host_to_net_u32(db->dst_ipv4); + nfv9_logging_del_session_record.dest_port = + clib_host_to_net_u16(db->dst_port); + } else { + nfv9_logging_del_session_record.dest_ip_addr = + clib_host_to_net_u32(sdb->v4_dest_key.k.ipv4); + nfv9_logging_del_session_record.dest_port = + clib_host_to_net_u16(sdb->v4_dest_key.k.port); + } + + nfv9_logging_del_session_record.inside_ip_port = + clib_host_to_net_u16(db->in2out_key.k.port); + + my_proto_mask = db->in2out_key.k.vrf & CNAT_PRO_MASK; + my_protocol = ((my_proto_mask == CNAT_UDP) ? UDP_PROT : + ((my_proto_mask == CNAT_TCP) ? TCP_PROT : + ((my_proto_mask == CNAT_ICMP) ? ICMP_PROT : GRE_PROT))); + + nfv9_logging_del_session_record.protocol = my_protocol; + + clib_memcpy(nfv9_logging_info->record[NAT44_DEL_SESSION_RECORD], + &nfv9_logging_del_session_record, + CNAT_NFV9_NAT44_DEL_SESSION_RECORD_LENGTH); + + nfv9_logging_info->record_length[NAT44_DEL_SESSION_RECORD] + += CNAT_NFV9_NAT44_DEL_SESSION_RECORD_LENGTH; + nfv9_logging_info->pkt_length += CNAT_NFV9_NAT44_DEL_SESSION_RECORD_LENGTH; + nfv9_logging_info->total_record_count += 1; + + nfv9_logging_info->record[NAT44_DEL_SESSION_RECORD] + += CNAT_NFV9_NAT44_DEL_SESSION_RECORD_LENGTH; + + nfv9_logging_info->next_data_ptr = + nfv9_logging_info->record[NAT44_DEL_SESSION_RECORD]; + + nfv9_logging_info->dataflow_header->dataflow_length = + clib_host_to_net_u32( + nfv9_logging_info->record_length[NAT44_DEL_SESSION_RECORD]); + + /* + * If we have exceeded the packet length, let us send the + * packet now. There is buffer of additional bytes beyond + * max_pkt_length to ensure that the last add/delete record + * can be stored safely. + */ + if (PREDICT_FALSE(nfv9_logging_info->pkt_length > + nfv9_logging_info->max_length_minus_max_record_size)) { + cnat_nfv9_send_pkt(nfv9_logging_info); + } +} + +/* + * DS-Lite APIs for netflow logging + */ + +/* + * edt: * * cnat_nfv9_ds_lite_mapping_create + * + * Tries to log a creation of mapping record + * + * Argument: cnat_main_db_entry_t *db + * Main DB entry being created + * + * Argument: dslite_table_entry_t *dslite_entry + * ds-lite instance for the Main DB entry being created + */ +void cnat_nfv9_ds_lite_mapping_create(cnat_main_db_entry_t *db, + dslite_table_entry_t *dslite_entry +#ifndef NO_BULK_LOGGING + , int bulk_alloc +#endif + ) +{ + + cnat_nfv9_logging_info_t *nfv9_logging_info = NULL; + + if (PREDICT_FALSE(!(db && dslite_entry))) { + return; + } + if (PREDICT_FALSE(dslite_entry->nfv9_logging_index == EMPTY)) { + /* + * no logging configured, silently return + */ + return; + } + + nfv9_logging_info = + cnat_nfv9_logging_info_pool + dslite_entry->nfv9_logging_index; + if (PREDICT_FALSE(nfv9_logging_info->current_logging_context == NULL)) { + cnat_nfv9_create_logging_context(nfv9_logging_info, + cnat_nfv9_template_add_default); + /* + * If still empty, return after increasing the count + */ + if (PREDICT_FALSE(nfv9_logging_info->current_logging_context == NULL)) { + return; + } + } +#ifndef NO_BULK_LOGGING + if(bulk_alloc > 0) { /* new bulk alloc - use bulk add template */ + cnat_nfv9_ds_lite_insert_bulk_add_record(nfv9_logging_info, + db, dslite_entry, bulk_alloc); + } else if(bulk_alloc == CACHE_ALLOC_NO_LOG_REQUIRED) + return; /* No logging required.. bulk port usage */ + else /* Individual logging .. fall back to old method */ +#endif /*NO_BULK_LOGGING*/ + cnat_nfv9_ds_lite_insert_add_record(nfv9_logging_info, db, dslite_entry); + /* + * If we have exceeded the packet length, let us send the + * packet now. There is buffer of additional bytes beyond + * max_pkt_length to ensure that the last add/delete record + * can be stored safely. + */ + if (PREDICT_FALSE(nfv9_logging_info->pkt_length > + nfv9_logging_info->max_length_minus_max_record_size)) { + cnat_nfv9_send_pkt(nfv9_logging_info); + } +} + +/* + * edt: * * cnat_nfv9_ds_lite_mapping_delete + * + * Tries to log a deletion of mapping record + * + * Argument: cnat_main_db_entry_t *db + * Main DB entry being deleted + * + * Argument: dslite_table_entry_t *dslite_entry + * ds-lite instance for the Main DB entry being deleted + */ +void cnat_nfv9_ds_lite_mapping_delete(cnat_main_db_entry_t *db, + dslite_table_entry_t *dslite_entry +#ifndef NO_BULK_LOGGING + , int bulk_alloc +#endif + ) +{ + + cnat_nfv9_logging_info_t *nfv9_logging_info = NULL; + if (PREDICT_FALSE(!(db && dslite_entry))) { + return; + } + if (PREDICT_FALSE(dslite_entry->nfv9_logging_index == EMPTY)) { + /* + * No logging configured, silently return + */ + return; + } + nfv9_logging_info = + cnat_nfv9_logging_info_pool + dslite_entry->nfv9_logging_index; + + + if (PREDICT_FALSE(nfv9_logging_info->current_logging_context == NULL)) { + cnat_nfv9_create_logging_context(nfv9_logging_info, + cnat_nfv9_template_add_default); + /* + * If still empty, return after increasing the count + */ + if (PREDICT_FALSE(nfv9_logging_info->current_logging_context == NULL)) { + return; + } + } +#ifndef NO_BULK_LOGGING + if(bulk_alloc > 0) { /* new bulk alloc - use bulk add template */ + cnat_nfv9_ds_lite_insert_bulk_del_record(nfv9_logging_info, + db, dslite_entry, bulk_alloc); + } else if(bulk_alloc == CACHE_ALLOC_NO_LOG_REQUIRED) + return; /* No logging required.. bulk port usage */ + else /* Individual logging .. fall back to old method */ +#endif /*NO_BULK_LOGGING*/ + cnat_nfv9_ds_lite_insert_del_record(nfv9_logging_info, db, dslite_entry); + /* + * If we have exceeded the packet length, let us send the + * packet now. There is buffer of additional bytes beyond + * max_pkt_length to ensure that the last add/delete record + * can be stored safely. + */ + if (PREDICT_FALSE(nfv9_logging_info->pkt_length > + nfv9_logging_info->max_length_minus_max_record_size)) { + cnat_nfv9_send_pkt(nfv9_logging_info); + } +} + +/* + * edt: * * cnat_nfv9_dslite_log_session_create + * + * Tries to log a creation of mapping record (session based) + * Argument: cnat_main_db_entry_t *db + * Main DB entry being created + * Arugment: cnat_session_entry_t *sdb + * Session DB entry if the destination is not the first dest + * Argument: dslite_table_entry_t *dslite_entry, + * dslite table entry for dslite instance + */ + +void cnat_nfv9_ds_lite_log_session_create( + cnat_main_db_entry_t *db, + dslite_table_entry_t *dslite_entry, + cnat_session_entry_t *sdb) +{ + + nfv9_ds_lite_add_session_record_t nfv9_logging_add_record ; + cnat_user_db_entry_t *udb = NULL; + u16 my_proto_mask; + u8 my_protocol; + cnat_nfv9_logging_info_t *nfv9_logging_info = 0; + + if (PREDICT_FALSE(dslite_entry->nfv9_logging_index == EMPTY)) { + /* + * no logging configured, silently return + */ + return; + } + + nfv9_logging_info = + cnat_nfv9_logging_info_pool + dslite_entry->nfv9_logging_index; + udb = cnat_user_db + db->user_index; + + if (PREDICT_FALSE(nfv9_logging_info->current_logging_context == NULL)) { + cnat_nfv9_create_logging_context(nfv9_logging_info, + cnat_nfv9_template_add_default); + + /* + * If still empty, return after increasing the count + */ + if (PREDICT_FALSE(nfv9_logging_info->current_logging_context == NULL)) { + return; + } + } + + udb = cnat_user_db + db->user_index; + if (PREDICT_FALSE(!udb)) { + return; + } + if (PREDICT_FALSE(nfv9_logging_info->record[DS_LITE_ADD_SESSION_RECORD] == NULL)) { + cnat_nfv9_record_create(nfv9_logging_info, DS_LITE_ADD_SESSION_RECORD); + } + /* + * We should definitely have add_record now, no need to sanitize + */ + nfv9_logging_add_record.inside_vrf_id = + clib_host_to_net_u32(dslite_entry->i_vrf_id); + nfv9_logging_add_record.outside_vrf_id = + clib_host_to_net_u32(dslite_entry->o_vrf_id); + + nfv9_logging_add_record.inside_ip_addr = + clib_host_to_net_u32(db->in2out_key.k.ipv4); + + nfv9_logging_add_record.inside_v6_src_addr[0] = + clib_host_to_net_u32(udb->ipv6[0]); + nfv9_logging_add_record.inside_v6_src_addr[1] = + clib_host_to_net_u32(udb->ipv6[1]); + nfv9_logging_add_record.inside_v6_src_addr[2] = + clib_host_to_net_u32(udb->ipv6[2]); + nfv9_logging_add_record.inside_v6_src_addr[3] = + clib_host_to_net_u32(udb->ipv6[3]); + + nfv9_logging_add_record.outside_ip_addr = + clib_host_to_net_u32(db->out2in_key.k.ipv4); + + nfv9_logging_add_record.inside_ip_port = + clib_host_to_net_u16(db->in2out_key.k.port); + nfv9_logging_add_record.outside_ip_port = + clib_host_to_net_u16(db->out2in_key.k.port); + + /* If sdb is null, it is assumed that logging is being done + * for the first destination which is held in the main db + + * itself + */ + if(PREDICT_TRUE(sdb == NULL)) { + nfv9_logging_add_record.dest_ip_addr = + clib_host_to_net_u32(db->dst_ipv4); + nfv9_logging_add_record.dest_port = + clib_host_to_net_u16(db->dst_port); + } else { + nfv9_logging_add_record.dest_ip_addr = + clib_host_to_net_u32(sdb->v4_dest_key.k.ipv4); + nfv9_logging_add_record.dest_port = + clib_host_to_net_u16(sdb->v4_dest_key.k.port); + } + + + my_proto_mask = db->in2out_key.k.vrf & CNAT_PRO_MASK; + + my_protocol = ((my_proto_mask == CNAT_UDP) ? UDP_PROT : + ((my_proto_mask == CNAT_TCP) ? TCP_PROT : + ((my_proto_mask == CNAT_ICMP) ? ICMP_PROT : 0))); + nfv9_logging_add_record.protocol = my_protocol; + + clib_memcpy(nfv9_logging_info->record[DS_LITE_ADD_SESSION_RECORD], + &nfv9_logging_add_record, CNAT_NFV9_DS_LITE_ADD_SESSION_RECORD_LENGTH); + + nfv9_logging_info->record_length[DS_LITE_ADD_SESSION_RECORD] + += CNAT_NFV9_DS_LITE_ADD_SESSION_RECORD_LENGTH; + + nfv9_logging_info->pkt_length += CNAT_NFV9_DS_LITE_ADD_SESSION_RECORD_LENGTH; + nfv9_logging_info->total_record_count += 1; + + nfv9_logging_info->record[DS_LITE_ADD_SESSION_RECORD] + += CNAT_NFV9_DS_LITE_ADD_SESSION_RECORD_LENGTH; + nfv9_logging_info->next_data_ptr = + nfv9_logging_info->record[DS_LITE_ADD_SESSION_RECORD]; + + nfv9_logging_info->dataflow_header->dataflow_length = + clib_host_to_net_u32( + nfv9_logging_info->record_length[DS_LITE_ADD_SESSION_RECORD]); + + /* + * If we have exceeded the packet length, let us send the + * packet now. There is buffer of additional bytes beyond + * max_pkt_length to ensure that the last add/delete record + * can be stored safely. + */ + if (PREDICT_FALSE(nfv9_logging_info->pkt_length > + nfv9_logging_info->max_length_minus_max_record_size)) { + cnat_nfv9_send_pkt(nfv9_logging_info); + } + +} + +/* + * edt: * * cnat_nfv9_dslite_log_session_delete + * + * Tries to log a creation of mapping record (session based) + * Argument: cnat_main_db_entry_t *db + * Main DB entry being created + * Arugment: cnat_session_entry_t *sdb + * Session DB entry if the destination is not the first dest + * Argument: dslite_table_entry_t *dslite_entry, + * dslite table entry for dslite instance + */ + +void cnat_nfv9_ds_lite_log_session_delete( + cnat_main_db_entry_t *db, + dslite_table_entry_t *dslite_entry, + cnat_session_entry_t *sdb) +{ + + nfv9_ds_lite_del_session_record_t nfv9_logging_add_record = {0}; + cnat_user_db_entry_t *udb = NULL; + u16 my_proto_mask; + u8 my_protocol; + cnat_nfv9_logging_info_t *nfv9_logging_info = NULL; + + if (PREDICT_FALSE(dslite_entry->nfv9_logging_index == EMPTY)) { + /* + * no logging configured, silently return + */ + return; + } + + nfv9_logging_info = + cnat_nfv9_logging_info_pool + dslite_entry->nfv9_logging_index; + udb = cnat_user_db + db->user_index; + + if (PREDICT_FALSE(!udb)) { + return; + } + + if (PREDICT_FALSE(nfv9_logging_info->current_logging_context == NULL)) { + cnat_nfv9_create_logging_context(nfv9_logging_info, + cnat_nfv9_template_add_default); + + /* + * If still empty, return after increasing the count + */ + if (PREDICT_FALSE(nfv9_logging_info->current_logging_context == NULL)) { + return; + } + } + + if (PREDICT_FALSE(nfv9_logging_info->record[DS_LITE_DEL_SESSION_RECORD] == NULL)) { + cnat_nfv9_record_create(nfv9_logging_info, DS_LITE_DEL_SESSION_RECORD); + } + /* + * We should definitely have add_record now, no need to sanitize + */ + nfv9_logging_add_record.inside_vrf_id = + clib_host_to_net_u32(dslite_entry->i_vrf_id); + + nfv9_logging_add_record.inside_ip_addr = + clib_host_to_net_u32(db->in2out_key.k.ipv4); + + nfv9_logging_add_record.inside_v6_src_addr[0] = + clib_host_to_net_u32(udb->ipv6[0]); + nfv9_logging_add_record.inside_v6_src_addr[1] = + clib_host_to_net_u32(udb->ipv6[1]); + nfv9_logging_add_record.inside_v6_src_addr[2] = + clib_host_to_net_u32(udb->ipv6[2]); + nfv9_logging_add_record.inside_v6_src_addr[3] = + clib_host_to_net_u32(udb->ipv6[3]); + + nfv9_logging_add_record.inside_ip_port = + clib_host_to_net_u16(db->in2out_key.k.port); + + /* If sdb is null, it is assumed that logging is being done + * for the first destination which is held in the main db + * itself + */ + if(PREDICT_TRUE(sdb == NULL)) { + nfv9_logging_add_record.dest_ip_addr = + clib_host_to_net_u32(db->dst_ipv4); + nfv9_logging_add_record.dest_port = + clib_host_to_net_u16(db->dst_port); + } else { + nfv9_logging_add_record.dest_ip_addr = + clib_host_to_net_u32(sdb->v4_dest_key.k.ipv4); + nfv9_logging_add_record.dest_port = + clib_host_to_net_u16(sdb->v4_dest_key.k.port); + } + + + my_proto_mask = db->in2out_key.k.vrf & CNAT_PRO_MASK; + + my_protocol = ((my_proto_mask == CNAT_UDP) ? UDP_PROT : + ((my_proto_mask == CNAT_TCP) ? TCP_PROT : + ((my_proto_mask == CNAT_ICMP) ? ICMP_PROT : 0))); + nfv9_logging_add_record.protocol = my_protocol; + + clib_memcpy(nfv9_logging_info->record[DS_LITE_DEL_SESSION_RECORD], + &nfv9_logging_add_record, CNAT_NFV9_DS_LITE_DEL_SESSION_RECORD_LENGTH); + + nfv9_logging_info->record_length[DS_LITE_DEL_SESSION_RECORD] + += CNAT_NFV9_DS_LITE_DEL_SESSION_RECORD_LENGTH; + + nfv9_logging_info->pkt_length += CNAT_NFV9_DS_LITE_DEL_SESSION_RECORD_LENGTH; + nfv9_logging_info->total_record_count += 1; + + nfv9_logging_info->record[DS_LITE_DEL_SESSION_RECORD] + += CNAT_NFV9_DS_LITE_DEL_SESSION_RECORD_LENGTH; + nfv9_logging_info->next_data_ptr = + nfv9_logging_info->record[DS_LITE_DEL_SESSION_RECORD]; + + nfv9_logging_info->dataflow_header->dataflow_length = + clib_host_to_net_u32( + nfv9_logging_info->record_length[DS_LITE_DEL_SESSION_RECORD]); + + /* + * If we have exceeded the packet length, let us send the + * packet now. There is buffer of additional bytes beyond + * max_pkt_length to ensure that the last add/delete record + * can be stored safely. + */ + if (PREDICT_FALSE(nfv9_logging_info->pkt_length > + nfv9_logging_info->max_length_minus_max_record_size)) { + cnat_nfv9_send_pkt(nfv9_logging_info); + } + +} + + +/* + * netflow logging API for ingress vrf_id to name mapping + */ + +/* + * edt: * * handle_vrfid_name_mapping + * It will search for valid natflow entry in netflow pool, + * once found one, will send all vrfid name mapping info + * using that entry + */ + + +static inline __attribute__((unused)) +void handle_vrfid_name_mapping(void) +{ + cnat_nfv9_logging_info_t *nfv9_logging_info = NULL; + + pool_foreach (nfv9_logging_info, cnat_nfv9_logging_info_pool, ({ + if(PREDICT_FALSE(nfv9_logging_info == NULL)) { + continue; + } + nfv9_server_info_t *server = nfv9_server_info_pool + + nfv9_logging_info->server_index; + if(server->template_sent == TEMPLATE_SENT_TRUE) { + cnat_nfv9_ingress_vrfid_name_mapping_create(nfv9_logging_info); + server->template_sent = TEMPLATE_SENT_FALSE; + } + })); +} + +/* + * edt: * * cnat_nfv9_ingress_vrfid_name_mapping_create + * + * Tries to log vrfid-name mapping record + * Argument: netflow pointer + */ + + +void cnat_nfv9_ingress_vrfid_name_mapping_create( + cnat_nfv9_logging_info_t *nfv9_logging_info) +{ + u16 index = 0; + + for (index = 0; index < MAX_VRFID; index++) { + if(vrfid_name_map[index].ref_count == 0) { + continue; + } + if (PREDICT_FALSE( + nfv9_logging_info->current_logging_context == NULL)) { + cnat_nfv9_create_logging_context(nfv9_logging_info, + cnat_nfv9_template_add_default); + } + cnat_nfv9_insert_ingress_vrfid_name_record( + nfv9_logging_info,index); + if (PREDICT_FALSE(nfv9_logging_info->pkt_length > + nfv9_logging_info->max_length_minus_max_record_size) || + PREDICT_FALSE(index == MAX_VRFID - 1)) { + if (PREDICT_TRUE(nfv9_logging_info->current_logging_context + != NULL)) { + cnat_nfv9_send_pkt(nfv9_logging_info); + } + } + }/*for()*/ + return; +} + +static void cnat_nfv9_insert_ingress_vrfid_name_record( + cnat_nfv9_logging_info_t *nfv9_logging_info, u16 index) +{ + nfv9_ingress_vrfid_name_record_t nfv9_ingress_vrfid_name_record = {0}; + + if (PREDICT_FALSE( + nfv9_logging_info->record[INGRESS_VRF_ID_NAME_RECORD] == NULL)) { + cnat_nfv9_record_create(nfv9_logging_info, INGRESS_VRF_ID_NAME_RECORD); + } + nfv9_ingress_vrfid_name_record.ingress_vrf_id = + clib_host_to_net_u32(vrfid_name_map[index].vrf_id); + + clib_memcpy(nfv9_ingress_vrfid_name_record.ingress_vrf_name, + vrfid_name_map[index].vrf_name, NFV9_VRF_NAME_LEN); + + clib_memcpy(nfv9_logging_info->record[INGRESS_VRF_ID_NAME_RECORD], + &nfv9_ingress_vrfid_name_record, + CNAT_NFV9_INGRESS_VRFID_NAME_RECORD_LENGTH); + + nfv9_logging_info->record_length[INGRESS_VRF_ID_NAME_RECORD] + += CNAT_NFV9_INGRESS_VRFID_NAME_RECORD_LENGTH; + + nfv9_logging_info->pkt_length += + CNAT_NFV9_INGRESS_VRFID_NAME_RECORD_LENGTH; + + nfv9_logging_info->total_record_count += 1; + + nfv9_logging_info->record[INGRESS_VRF_ID_NAME_RECORD] + += CNAT_NFV9_INGRESS_VRFID_NAME_RECORD_LENGTH; + + nfv9_logging_info->next_data_ptr = + nfv9_logging_info->record[INGRESS_VRF_ID_NAME_RECORD]; + + nfv9_logging_info->dataflow_header->dataflow_length = + clib_host_to_net_u32( + nfv9_logging_info->record_length[INGRESS_VRF_ID_NAME_RECORD]); + return; +} +/* + * edt: * * cnat_log_timer_handler + * + * Timer handler for sending any pending NFV9 record + * + * Argument: spp_timer_t * timer_p + * Timer handler structure + */ +void handle_pending_nfv9_pkts() +{ + vlib_node_t *output_node; + vlib_main_t * vm = vlib_get_main(); + cnat_nfv9_logging_info_t *my_nfv9_logging_info = 0; + u32 current_timestamp = cnat_nfv9_get_sys_up_time_in_ms(); + u32 current_unix_time_in_seconds = cnat_nfv9_get_unix_time_in_seconds(); + + output_node = vlib_get_node_by_name (vm, (u8 *) "ip4-lookup"); + + pool_foreach (my_nfv9_logging_info, cnat_nfv9_logging_info_pool, ({ + nfv9_server_info_t *server = nfv9_server_info_pool + + my_nfv9_logging_info->server_index; + if (my_nfv9_logging_info->queued_logging_context || + (my_nfv9_logging_info->current_logging_context && + (current_timestamp - + my_nfv9_logging_info->current_logging_context_timestamp) + > 1000)) { + /* + * If there is a current logging context and timestamp + * indicates it is pending for long, send it out + * Also if there is a queued context send it out as well + */ + vlib_cli_output(vm, "\nNFV9_TIMER: queued %p, curr %p", + my_nfv9_logging_info->queued_logging_context, + my_nfv9_logging_info->current_logging_context); + + + cnat_nfv9_send_pkt_always_success(my_nfv9_logging_info, + output_node); + } else { + /* + * If the last_template_sent_time is too far back in time + * send the template even if there is no NFv9 records to send + */ + if ((my_nfv9_logging_info->queued_logging_context == NULL) && + (my_nfv9_logging_info->current_logging_context == NULL) && + ((current_unix_time_in_seconds - + server->last_template_sent_time) > + server->timeout_rate)) { + cnat_nfv9_create_logging_context(my_nfv9_logging_info, + cnat_nfv9_template_add_always); + if (PREDICT_TRUE(my_nfv9_logging_info->current_logging_context + != NULL)) { + cnat_nfv9_send_pkt(my_nfv9_logging_info); + } + } + } + })); +} + +/* + * Code to initialize NFV9 Template. This is done when a NFV9 is enabled + * It is done only once and later used when sending NFV9 template records. + */ +static void +cnat_nfv9_template_init (void) +{ + cnat_nfv9_template_info.flowset_id = + clib_host_to_net_u16(CNAT_NFV9_TEMPLATE_FLOWSET_ID); + cnat_nfv9_template_info.length = + clib_host_to_net_u16(CNAT_NFV9_TEMPLATE_LENGTH - + CNAT_NFV9_OPTION_TEMPLATE_LENGTH); + /* + * Create the add Template + */ + cnat_nfv9_template_info.add_template_id = + clib_host_to_net_u16(CNAT_NFV9_ADD_TEMPLATE_ID); + cnat_nfv9_template_info.add_field_count = + clib_host_to_net_u16(CNAT_NFV9_ADD_FIELD_COUNT); + + cnat_nfv9_template_info.add_inside_vrf_id_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_VRFID_FIELD_TYPE); + cnat_nfv9_template_info.add_inside_vrf_id_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_VRFID_FIELD_SIZE); + + cnat_nfv9_template_info.add_outside_vrf_id_field_type = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_VRFID_FIELD_TYPE); + cnat_nfv9_template_info.add_outside_vrf_id_field_size = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_VRFID_FIELD_SIZE); + + cnat_nfv9_template_info.add_inside_ip_addr_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_ADDR_FIELD_TYPE); + cnat_nfv9_template_info.add_inside_ip_addr_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_ADDR_FIELD_SIZE); + + cnat_nfv9_template_info.add_outside_ip_addr_field_type = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_IP_ADDR_FIELD_TYPE); + cnat_nfv9_template_info.add_outside_ip_addr_field_size = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_IP_ADDR_FIELD_SIZE); + + cnat_nfv9_template_info.add_inside_ip_port_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_PORT_FIELD_TYPE); + cnat_nfv9_template_info.add_inside_ip_port_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_PORT_FIELD_SIZE); + + cnat_nfv9_template_info.add_outside_ip_port_field_type = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_IP_PORT_FIELD_TYPE); + cnat_nfv9_template_info.add_outside_ip_port_field_size = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_IP_PORT_FIELD_SIZE); + + cnat_nfv9_template_info.add_protocol_field_type = + clib_host_to_net_u16(CNAT_NFV9_PROTOCOL_FIELD_TYPE); + cnat_nfv9_template_info.add_protocol_field_size = + clib_host_to_net_u16(CNAT_NFV9_PROTOCOL_FIELD_SIZE); + + /* + * Create the delete Template + */ + cnat_nfv9_template_info.del_template_id = + clib_host_to_net_u16(CNAT_NFV9_DEL_TEMPLATE_ID); + cnat_nfv9_template_info.del_field_count = + clib_host_to_net_u16(CNAT_NFV9_DEL_FIELD_COUNT); + + cnat_nfv9_template_info.del_inside_vrf_id_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_VRFID_FIELD_TYPE); + cnat_nfv9_template_info.del_inside_vrf_id_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_VRFID_FIELD_SIZE); + + cnat_nfv9_template_info.del_inside_ip_addr_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_ADDR_FIELD_TYPE); + cnat_nfv9_template_info.del_inside_ip_addr_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_ADDR_FIELD_SIZE); + + cnat_nfv9_template_info.del_inside_ip_port_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_PORT_FIELD_TYPE); + cnat_nfv9_template_info.del_inside_ip_port_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_PORT_FIELD_SIZE); + + cnat_nfv9_template_info.del_protocol_field_type = + clib_host_to_net_u16(CNAT_NFV9_PROTOCOL_FIELD_TYPE); + cnat_nfv9_template_info.del_protocol_field_size = + clib_host_to_net_u16(CNAT_NFV9_PROTOCOL_FIELD_SIZE); + + + /* Create NAT64 BIB Add template */ +#if 0 + cnat_nfv9_template_info.nat64_add_bib_template_id = + clib_host_to_net_u16(CNAT_NFV9_NAT64_ADD_BIB_TEMPLATE_ID); + cnat_nfv9_template_info.nat64_add_bib_field_count = + clib_host_to_net_u16(CNAT_NFV9_NAT64_ADD_BIB_FIELD_COUNT); + + + cnat_nfv9_template_info.nat64_add_bib_inside_ipv6_addr_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IPV6_SRC_ADDR_FIELD_TYPE); + cnat_nfv9_template_info.nat64_add_bib_inside_ipv6_addr_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IPV6_SRC_ADDR_FIELD_SIZE); + + cnat_nfv9_template_info.nat64_add_bib_outside_ip_addr_field_type = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_IP_ADDR_FIELD_TYPE); + cnat_nfv9_template_info.nat64_add_bib_outside_ip_addr_field_size = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_IP_ADDR_FIELD_SIZE); + + cnat_nfv9_template_info.nat64_add_bib_inside_ip_port_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_PORT_FIELD_TYPE); + cnat_nfv9_template_info.nat64_add_bib_inside_ip_port_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_PORT_FIELD_SIZE); + + cnat_nfv9_template_info.nat64_add_bib_outside_ip_port_field_type = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_IP_PORT_FIELD_TYPE); + cnat_nfv9_template_info.nat64_add_bib_outside_ip_port_field_size = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_IP_PORT_FIELD_SIZE); + + cnat_nfv9_template_info.nat64_add_bib_protocol_field_type = + clib_host_to_net_u16(CNAT_NFV9_PROTOCOL_FIELD_TYPE); + cnat_nfv9_template_info.nat64_add_bib_protocol_field_size = + clib_host_to_net_u16(CNAT_NFV9_PROTOCOL_FIELD_SIZE); + + + /* NAT64 BIB Delete */ + cnat_nfv9_template_info.nat64_del_bib_template_id = + clib_host_to_net_u16(CNAT_NFV9_NAT64_DEL_BIB_TEMPLATE_ID); + cnat_nfv9_template_info.nat64_del_bib_field_count = + clib_host_to_net_u16(CNAT_NFV9_NAT64_DEL_BIB_FIELD_COUNT); + + cnat_nfv9_template_info.nat64_del_bib_inside_ip_addr_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IPV6_SRC_ADDR_FIELD_TYPE); + cnat_nfv9_template_info.nat64_del_bib_inside_ip_addr_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IPV6_SRC_ADDR_FIELD_SIZE); + + cnat_nfv9_template_info.nat64_del_bib_inside_ip_port_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_PORT_FIELD_TYPE); + cnat_nfv9_template_info.nat64_del_bib_inside_ip_port_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_PORT_FIELD_SIZE); + + cnat_nfv9_template_info.nat64_del_bib_protocol_field_type = + clib_host_to_net_u16(CNAT_NFV9_PROTOCOL_FIELD_TYPE); + cnat_nfv9_template_info.nat64_del_bib_protocol_field_size = + clib_host_to_net_u16(CNAT_NFV9_PROTOCOL_FIELD_SIZE); + + + /* NAt64 SESSION ADD */ + + cnat_nfv9_template_info.nat64_add_session_template_id = + clib_host_to_net_u16(CNAT_NFV9_NAT64_ADD_SESSION_TEMPLATE_ID); + cnat_nfv9_template_info.nat64_add_session_field_count = + clib_host_to_net_u16(CNAT_NFV9_NAT64_ADD_SESSION_FIELD_COUNT); + + + cnat_nfv9_template_info.nat64_add_session_inside_ipv6_src_addr_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IPV6_SRC_ADDR_FIELD_TYPE); + cnat_nfv9_template_info.nat64_add_session_inside_ipv6_src_addr_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IPV6_SRC_ADDR_FIELD_SIZE); + + cnat_nfv9_template_info.nat64_add_session_outside_ip_src_addr_field_type = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_IP_ADDR_FIELD_TYPE); + cnat_nfv9_template_info.nat64_add_session_outside_ip_src_addr_field_size = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_IP_ADDR_FIELD_SIZE); + + + cnat_nfv9_template_info.nat64_add_session_inside_ipv6_dst_addr_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IPV6_DST_ADDR_FIELD_TYPE); + cnat_nfv9_template_info.nat64_add_session_inside_ipv6_dst_addr_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IPV6_DST_ADDR_FIELD_SIZE); + + + cnat_nfv9_template_info.nat64_add_session_outside_ip_dst_addr_field_type = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_IP_DST_ADDR_FIELD_TYPE); + cnat_nfv9_template_info.nat64_add_session_outside_ip_dst_addr_field_size = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_IP_DST_ADDR_FIELD_SIZE); + + cnat_nfv9_template_info.nat64_add_session_inside_ip_src_port_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_PORT_FIELD_TYPE); + cnat_nfv9_template_info.nat64_add_session_inside_ip_src_port_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_PORT_FIELD_SIZE); + + + cnat_nfv9_template_info.nat64_add_session_outside_ip_src_port_field_type = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_IP_PORT_FIELD_TYPE); + cnat_nfv9_template_info.nat64_add_session_outside_ip_src_port_field_size = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_IP_PORT_FIELD_SIZE); + + + cnat_nfv9_template_info.nat64_add_session_ip_dest_port_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_DST_PORT_FIELD_TYPE); + cnat_nfv9_template_info.nat64_add_session_ip_dest_port_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_DST_PORT_FIELD_SIZE); + + cnat_nfv9_template_info.nat64_add_session_protocol_field_type = + clib_host_to_net_u16(CNAT_NFV9_PROTOCOL_FIELD_TYPE); + cnat_nfv9_template_info.nat64_add_session_protocol_field_size = + clib_host_to_net_u16(CNAT_NFV9_PROTOCOL_FIELD_SIZE); + + + + /* Session Delete */ + cnat_nfv9_template_info.nat64_del_session_template_id = + clib_host_to_net_u16(CNAT_NFV9_NAT64_DEL_SESSION_TEMPLATE_ID); + cnat_nfv9_template_info.nat64_del_session_field_count = + clib_host_to_net_u16(CNAT_NFV9_NAT64_DEL_SESSION_FIELD_COUNT); + + cnat_nfv9_template_info.nat64_del_session_inside_ip_src_addr_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IPV6_SRC_ADDR_FIELD_TYPE); + cnat_nfv9_template_info.nat64_del_session_inside_ip_src_addr_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IPV6_SRC_ADDR_FIELD_SIZE); + + cnat_nfv9_template_info.nat64_del_session_inside_ip_dst_addr_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IPV6_DST_ADDR_FIELD_TYPE); + cnat_nfv9_template_info.nat64_del_session_inside_ip_dst_addr_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IPV6_DST_ADDR_FIELD_SIZE); + + cnat_nfv9_template_info.nat64_del_session_inside_ip_src_port_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_PORT_FIELD_TYPE); + cnat_nfv9_template_info.nat64_del_session_inside_ip_src_port_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_PORT_FIELD_SIZE); + + cnat_nfv9_template_info.nat64_del_session_inside_ip_dst_port_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_DST_PORT_FIELD_TYPE); + cnat_nfv9_template_info.nat64_del_session_inside_ip_dst_port_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_DST_PORT_FIELD_SIZE); + + cnat_nfv9_template_info.nat64_del_session_protocol_field_type = + clib_host_to_net_u16(CNAT_NFV9_PROTOCOL_FIELD_TYPE); + cnat_nfv9_template_info.nat64_del_session_protocol_field_size = + clib_host_to_net_u16(CNAT_NFV9_PROTOCOL_FIELD_SIZE); +#endif + /* + * Create the nat44 session add Template + */ + cnat_nfv9_template_info.nat44_session_add_template_id = + clib_host_to_net_u16(CNAT_NFV9_NAT44_ADD_SESSION_TEMPLATE_ID); + cnat_nfv9_template_info.nat44_session_add_field_count = + clib_host_to_net_u16(CNAT_NFV9_NAT44_ADD_SESSION_FIELD_COUNT); + + cnat_nfv9_template_info.nat44_session_add_inside_vrf_id_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_VRFID_FIELD_TYPE); + cnat_nfv9_template_info.nat44_session_add_inside_vrf_id_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_VRFID_FIELD_SIZE); + + cnat_nfv9_template_info.nat44_session_add_outside_vrf_id_field_type = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_VRFID_FIELD_TYPE); + cnat_nfv9_template_info.nat44_session_add_outside_vrf_id_field_size = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_VRFID_FIELD_SIZE); + + cnat_nfv9_template_info.nat44_session_add_inside_ip_addr_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_ADDR_FIELD_TYPE); + cnat_nfv9_template_info.nat44_session_add_inside_ip_addr_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_ADDR_FIELD_SIZE); + + cnat_nfv9_template_info.nat44_session_add_outside_ip_addr_field_type = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_IP_ADDR_FIELD_TYPE); + cnat_nfv9_template_info.nat44_session_add_outside_ip_addr_field_size = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_IP_ADDR_FIELD_SIZE); + + cnat_nfv9_template_info.nat44_session_add_inside_ip_port_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_PORT_FIELD_TYPE); + cnat_nfv9_template_info.nat44_session_add_inside_ip_port_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_PORT_FIELD_SIZE); + + cnat_nfv9_template_info.nat44_session_add_outside_ip_port_field_type = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_IP_PORT_FIELD_TYPE); + cnat_nfv9_template_info.nat44_session_add_outside_ip_port_field_size = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_IP_PORT_FIELD_SIZE); + + cnat_nfv9_template_info.nat44_session_add_dest_ip_addr_field_type = + clib_host_to_net_u16(CNAT_NFV9_DESTINATION_IP_ADDR_FIELD_TYPE); + cnat_nfv9_template_info.nat44_session_add_dest_ip_addr_field_size = + clib_host_to_net_u16(CNAT_NFV9_DESTINATION_IP_ADDR_FIELD_SIZE); + + cnat_nfv9_template_info.nat44_session_add_dest_port_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_DST_PORT_FIELD_TYPE); + cnat_nfv9_template_info.nat44_session_add_dest_port_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_DST_PORT_FIELD_SIZE); + + cnat_nfv9_template_info.nat44_session_add_protocol_field_type = + clib_host_to_net_u16(CNAT_NFV9_PROTOCOL_FIELD_TYPE); + cnat_nfv9_template_info.nat44_session_add_protocol_field_size = + clib_host_to_net_u16(CNAT_NFV9_PROTOCOL_FIELD_SIZE); + + /* + * Create the nat44 session del Template + */ + cnat_nfv9_template_info.nat44_session_del_template_id = + clib_host_to_net_u16(CNAT_NFV9_NAT44_DEL_SESSION_TEMPLATE_ID); + cnat_nfv9_template_info.nat44_session_del_field_count = + clib_host_to_net_u16(CNAT_NFV9_NAT44_DEL_SESSION_FIELD_COUNT); + + cnat_nfv9_template_info.nat44_session_del_inside_vrf_id_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_VRFID_FIELD_TYPE); + cnat_nfv9_template_info.nat44_session_del_inside_vrf_id_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_VRFID_FIELD_SIZE); + + cnat_nfv9_template_info.nat44_session_del_inside_ip_addr_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_ADDR_FIELD_TYPE); + cnat_nfv9_template_info.nat44_session_del_inside_ip_addr_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_ADDR_FIELD_SIZE); + + cnat_nfv9_template_info.nat44_session_del_dest_ip_addr_field_type = + clib_host_to_net_u16(CNAT_NFV9_DESTINATION_IP_ADDR_FIELD_TYPE); + cnat_nfv9_template_info.nat44_session_del_dest_ip_addr_field_size = + clib_host_to_net_u16(CNAT_NFV9_DESTINATION_IP_ADDR_FIELD_SIZE); + + cnat_nfv9_template_info.nat44_session_del_inside_ip_port_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_PORT_FIELD_TYPE); + cnat_nfv9_template_info.nat44_session_del_inside_ip_port_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_PORT_FIELD_SIZE); + + cnat_nfv9_template_info.nat44_session_del_dest_port_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_DST_PORT_FIELD_TYPE); + cnat_nfv9_template_info.nat44_session_del_dest_port_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_DST_PORT_FIELD_SIZE); + + cnat_nfv9_template_info.nat44_session_del_protocol_field_type = + clib_host_to_net_u16(CNAT_NFV9_PROTOCOL_FIELD_TYPE); + cnat_nfv9_template_info.nat44_session_del_protocol_field_size = + clib_host_to_net_u16(CNAT_NFV9_PROTOCOL_FIELD_SIZE); + /* + * Ds-lite add template + */ +#if 0 + cnat_nfv9_template_info.add_dslite_template_id = + clib_host_to_net_u16(CNAT_NFV9_DS_LITE_ADD_TEMPLATE_ID); + cnat_nfv9_template_info.add_dslite_field_count = + clib_host_to_net_u16(CNAT_NFV9_DS_LITE_ADD_FIELD_COUNT); + + cnat_nfv9_template_info.add_dslite_inside_vrf_id_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_VRFID_FIELD_TYPE); + cnat_nfv9_template_info.add_dslite_inside_vrf_id_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_VRFID_FIELD_SIZE); + + cnat_nfv9_template_info.add_dslite_outside_vrf_id_field_type = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_VRFID_FIELD_TYPE); + cnat_nfv9_template_info.add_dslite_outside_vrf_id_field_size = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_VRFID_FIELD_SIZE); + + cnat_nfv9_template_info.add_dslite_inside_ip_addr_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_ADDR_FIELD_TYPE); + cnat_nfv9_template_info.add_dslite_inside_ip_addr_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_ADDR_FIELD_SIZE); + + cnat_nfv9_template_info.add_dslite_inside_ipv6_addr_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IPV6_SRC_ADDR_FIELD_TYPE); + cnat_nfv9_template_info.add_dslite_inside_ipv6_addr_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IPV6_SRC_ADDR_FIELD_SIZE); + + cnat_nfv9_template_info.add_dslite_outside_ip_addr_field_type = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_IP_ADDR_FIELD_TYPE); + cnat_nfv9_template_info.add_dslite_outside_ip_addr_field_size = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_IP_ADDR_FIELD_SIZE); + + cnat_nfv9_template_info.add_dslite_inside_ip_port_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_PORT_FIELD_TYPE); + cnat_nfv9_template_info.add_dslite_inside_ip_port_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_PORT_FIELD_SIZE); + + cnat_nfv9_template_info.add_dslite_outside_ip_port_field_type = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_IP_PORT_FIELD_TYPE); + cnat_nfv9_template_info.add_dslite_outside_ip_port_field_size = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_IP_PORT_FIELD_SIZE); + + cnat_nfv9_template_info.add_dslite_protocol_field_type = + clib_host_to_net_u16(CNAT_NFV9_PROTOCOL_FIELD_TYPE); + cnat_nfv9_template_info.add_dslite_protocol_field_size = + clib_host_to_net_u16(CNAT_NFV9_PROTOCOL_FIELD_SIZE); + + /* + * Ds-lite delete template + */ + cnat_nfv9_template_info.del_dslite_template_id = + clib_host_to_net_u16(CNAT_NFV9_DS_LITE_DEL_TEMPLATE_ID); + cnat_nfv9_template_info.del_dslite_field_count = + clib_host_to_net_u16(CNAT_NFV9_DS_LITE_DEL_FIELD_COUNT); + + cnat_nfv9_template_info.del_dslite_inside_vrf_id_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_VRFID_FIELD_TYPE); + cnat_nfv9_template_info.del_dslite_inside_vrf_id_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_VRFID_FIELD_SIZE); + + cnat_nfv9_template_info.del_dslite_inside_ip_addr_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_ADDR_FIELD_TYPE); + cnat_nfv9_template_info.del_dslite_inside_ip_addr_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_ADDR_FIELD_SIZE); + + cnat_nfv9_template_info.del_dslite_inside_ipv6_addr_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IPV6_SRC_ADDR_FIELD_TYPE); + cnat_nfv9_template_info.del_dslite_inside_ipv6_addr_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IPV6_SRC_ADDR_FIELD_SIZE); + + cnat_nfv9_template_info.del_dslite_inside_ip_port_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_PORT_FIELD_TYPE); + cnat_nfv9_template_info.del_dslite_inside_ip_port_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_PORT_FIELD_SIZE); + + cnat_nfv9_template_info.del_dslite_protocol_field_type = + clib_host_to_net_u16(CNAT_NFV9_PROTOCOL_FIELD_TYPE); + cnat_nfv9_template_info.del_dslite_protocol_field_size = + clib_host_to_net_u16(CNAT_NFV9_PROTOCOL_FIELD_SIZE); + + /* + * Ds-lite session add template + */ + + cnat_nfv9_template_info.add_dslite_session_template_id = + clib_host_to_net_u16(CNAT_NFV9_DS_LITE_ADD_SESSION_TEMPLATE_ID); + cnat_nfv9_template_info.add_dslite_session_field_count = + clib_host_to_net_u16(CNAT_NFV9_DS_LITE_ADD_SESSION_FIELD_COUNT); + + cnat_nfv9_template_info.add_dslite_session_inside_vrf_id_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_VRFID_FIELD_TYPE); + cnat_nfv9_template_info.add_dslite_session_inside_vrf_id_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_VRFID_FIELD_SIZE); + + cnat_nfv9_template_info.add_dslite_session_outside_vrf_id_field_type = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_VRFID_FIELD_TYPE); + cnat_nfv9_template_info.add_dslite_session_outside_vrf_id_field_size = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_VRFID_FIELD_SIZE); + + cnat_nfv9_template_info.add_dslite_session_inside_ip_addr_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_ADDR_FIELD_TYPE); + cnat_nfv9_template_info.add_dslite_session_inside_ip_addr_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_ADDR_FIELD_SIZE); + + cnat_nfv9_template_info.add_dslite_session_inside_ipv6_addr_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IPV6_SRC_ADDR_FIELD_TYPE); + cnat_nfv9_template_info.add_dslite_session_inside_ipv6_addr_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IPV6_SRC_ADDR_FIELD_SIZE); + + cnat_nfv9_template_info.add_dslite_session_outside_ip_addr_field_type = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_IP_ADDR_FIELD_TYPE); + cnat_nfv9_template_info.add_dslite_session_outside_ip_addr_field_size = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_IP_ADDR_FIELD_SIZE); + + cnat_nfv9_template_info.add_dslite_session_inside_ip_port_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_PORT_FIELD_TYPE); + cnat_nfv9_template_info.add_dslite_session_inside_ip_port_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_PORT_FIELD_SIZE); + + cnat_nfv9_template_info.add_dslite_session_outside_ip_port_field_type = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_IP_PORT_FIELD_TYPE); + cnat_nfv9_template_info.add_dslite_session_outside_ip_port_field_size = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_IP_PORT_FIELD_SIZE); + + cnat_nfv9_template_info.add_dslite_session_dest_ip_addr_field_type = + clib_host_to_net_u16(CNAT_NFV9_DESTINATION_IP_ADDR_FIELD_TYPE); + cnat_nfv9_template_info.add_dslite_session_dest_ip_addr_field_size = + clib_host_to_net_u16(CNAT_NFV9_DESTINATION_IP_ADDR_FIELD_SIZE); + + cnat_nfv9_template_info.add_dslite_session_dest_port_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_DST_PORT_FIELD_TYPE); + cnat_nfv9_template_info.add_dslite_session_dest_port_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_DST_PORT_FIELD_SIZE); + + cnat_nfv9_template_info.add_dslite_session_protocol_field_type = + clib_host_to_net_u16(CNAT_NFV9_PROTOCOL_FIELD_TYPE); + cnat_nfv9_template_info.add_dslite_session_protocol_field_size = + clib_host_to_net_u16(CNAT_NFV9_PROTOCOL_FIELD_SIZE); + + /* + * Ds-lite session delete template + */ + cnat_nfv9_template_info.del_dslite_session_template_id = + clib_host_to_net_u16(CNAT_NFV9_DS_LITE_DEL_SESSION_TEMPLATE_ID); + cnat_nfv9_template_info.del_dslite_session_field_count = + clib_host_to_net_u16(CNAT_NFV9_DS_LITE_DEL_SESSION_FIELD_COUNT); + + cnat_nfv9_template_info.del_dslite_session_inside_vrf_id_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_VRFID_FIELD_TYPE); + cnat_nfv9_template_info.del_dslite_session_inside_vrf_id_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_VRFID_FIELD_SIZE); + + cnat_nfv9_template_info.del_dslite_session_inside_ip_addr_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_ADDR_FIELD_TYPE); + cnat_nfv9_template_info.del_dslite_session_inside_ip_addr_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_ADDR_FIELD_SIZE); + + cnat_nfv9_template_info.del_dslite_session_inside_ipv6_addr_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IPV6_SRC_ADDR_FIELD_TYPE); + cnat_nfv9_template_info.del_dslite_session_inside_ipv6_addr_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IPV6_SRC_ADDR_FIELD_SIZE); + + cnat_nfv9_template_info.del_dslite_session_inside_ip_port_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_PORT_FIELD_TYPE); + cnat_nfv9_template_info.del_dslite_session_inside_ip_port_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_PORT_FIELD_SIZE); + + cnat_nfv9_template_info.del_dslite_session_dest_ip_addr_field_type = + clib_host_to_net_u16(CNAT_NFV9_DESTINATION_IP_ADDR_FIELD_TYPE); + cnat_nfv9_template_info.del_dslite_session_dest_ip_addr_field_size = + clib_host_to_net_u16(CNAT_NFV9_DESTINATION_IP_ADDR_FIELD_SIZE); + + cnat_nfv9_template_info.del_dslite_session_dest_port_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_DST_PORT_FIELD_TYPE); + cnat_nfv9_template_info.del_dslite_session_dest_port_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_DST_PORT_FIELD_SIZE); + + cnat_nfv9_template_info.del_dslite_session_protocol_field_type = + clib_host_to_net_u16(CNAT_NFV9_PROTOCOL_FIELD_TYPE); + cnat_nfv9_template_info.del_dslite_session_protocol_field_size = + clib_host_to_net_u16(CNAT_NFV9_PROTOCOL_FIELD_SIZE); + + /* Create add bulk template */ + cnat_nfv9_template_info.bulk_add_template_id = + clib_host_to_net_u16(CNAT_NFV9_NAT44_BULK_ADD_TEMPLATE_ID); + cnat_nfv9_template_info.bulk_add_field_count = + clib_host_to_net_u16(CNAT_NFV9_NAT44_BULK_ADD_FIELD_COUNT); + + cnat_nfv9_template_info.bulk_add_inside_vrf_id_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_VRFID_FIELD_TYPE); + cnat_nfv9_template_info.bulk_add_inside_vrf_id_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_VRFID_FIELD_SIZE); + + cnat_nfv9_template_info.bulk_add_outside_vrf_id_field_type = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_VRFID_FIELD_TYPE); + cnat_nfv9_template_info.bulk_add_outside_vrf_id_field_size = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_VRFID_FIELD_SIZE); + + cnat_nfv9_template_info.bulk_add_inside_ip_addr_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_ADDR_FIELD_TYPE); + cnat_nfv9_template_info.bulk_add_inside_ip_addr_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_ADDR_FIELD_SIZE); + + cnat_nfv9_template_info.bulk_add_outside_ip_addr_field_type = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_IP_ADDR_FIELD_TYPE); + cnat_nfv9_template_info.bulk_add_outside_ip_addr_field_size = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_IP_ADDR_FIELD_SIZE); + + cnat_nfv9_template_info.bulk_add_outside_start_port_field_type = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_IP_PORT_START_FIELD_TYPE); + cnat_nfv9_template_info.bulk_add_outside_start_port_field_size = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_IP_PORT_START_FIELD_SIZE); + + cnat_nfv9_template_info.bulk_add_outside_end_port_field_type = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_IP_PORT_END_FIELD_TYPE); + cnat_nfv9_template_info.bulk_add_outside_end_port_field_size = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_IP_PORT_END_FIELD_SIZE); + + /* + * Create the bulk delete Template + */ + cnat_nfv9_template_info.bulk_del_template_id = + clib_host_to_net_u16(CNAT_NFV9_NAT44_BULK_DEL_TEMPLATE_ID); + cnat_nfv9_template_info.bulk_del_field_count = + clib_host_to_net_u16(CNAT_NFV9_NAT44_BULK_DEL_FIELD_COUNT); + + cnat_nfv9_template_info.bulk_del_inside_vrf_id_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_VRFID_FIELD_TYPE); + cnat_nfv9_template_info.bulk_del_inside_vrf_id_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_VRFID_FIELD_SIZE); + + cnat_nfv9_template_info.bulk_del_inside_ip_addr_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_ADDR_FIELD_TYPE); + cnat_nfv9_template_info.bulk_del_inside_ip_addr_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_ADDR_FIELD_SIZE); + + cnat_nfv9_template_info.bulk_del_outside_start_port_field_type = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_IP_PORT_START_FIELD_TYPE); + cnat_nfv9_template_info.bulk_del_outside_start_port_field_size = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_IP_PORT_START_FIELD_SIZE); + + /* + * Ds-lite bulk add template + */ + cnat_nfv9_template_info.bulk_dslite_add_template_id = + clib_host_to_net_u16(CNAT_NFV9_DS_LITE_BULK_ADD_TEMPLATE_ID); + cnat_nfv9_template_info.bulk_dslite_add_field_count = + clib_host_to_net_u16(CNAT_NFV9_DS_LITE_BULK_ADD_FIELD_COUNT); + + cnat_nfv9_template_info.bulk_dslite_add_inside_vrf_id_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_VRFID_FIELD_TYPE); + cnat_nfv9_template_info.bulk_dslite_add_inside_vrf_id_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_VRFID_FIELD_SIZE); + + cnat_nfv9_template_info.bulk_dslite_add_outside_vrf_id_field_type = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_VRFID_FIELD_TYPE); + cnat_nfv9_template_info.bulk_dslite_add_outside_vrf_id_field_size = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_VRFID_FIELD_SIZE); + + cnat_nfv9_template_info.bulk_dslite_add_inside_ip_addr_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_ADDR_FIELD_TYPE); + cnat_nfv9_template_info.bulk_dslite_add_inside_ip_addr_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_ADDR_FIELD_SIZE); + + cnat_nfv9_template_info.bulk_dslite_add_inside_ipv6_addr_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IPV6_SRC_ADDR_FIELD_TYPE); + cnat_nfv9_template_info.bulk_dslite_add_inside_ipv6_addr_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IPV6_SRC_ADDR_FIELD_SIZE); + + cnat_nfv9_template_info.bulk_dslite_add_outside_ip_addr_field_type = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_IP_ADDR_FIELD_TYPE); + cnat_nfv9_template_info.bulk_dslite_add_outside_ip_addr_field_size = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_IP_ADDR_FIELD_SIZE); + + cnat_nfv9_template_info.bulk_dslite_add_outside_start_port_field_type = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_IP_PORT_START_FIELD_TYPE); + cnat_nfv9_template_info.bulk_dslite_add_outside_start_port_field_size = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_IP_PORT_START_FIELD_SIZE); + + cnat_nfv9_template_info.bulk_dslite_add_outside_end_port_field_type = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_IP_PORT_END_FIELD_TYPE); + cnat_nfv9_template_info.bulk_dslite_add_outside_end_port_field_size = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_IP_PORT_END_FIELD_SIZE); + + /* + * Ds-lite bulk delete template + */ + + cnat_nfv9_template_info.bulk_dslite_del_template_id = + clib_host_to_net_u16(CNAT_NFV9_DS_LITE_BULK_DEL_TEMPLATE_ID); + cnat_nfv9_template_info.bulk_dslite_del_field_count = + clib_host_to_net_u16(CNAT_NFV9_DS_LITE_BULK_DEL_FIELD_COUNT); + + cnat_nfv9_template_info.bulk_dslite_del_inside_vrf_id_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_VRFID_FIELD_TYPE); + cnat_nfv9_template_info.bulk_dslite_del_inside_vrf_id_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_VRFID_FIELD_SIZE); + + cnat_nfv9_template_info.bulk_dslite_del_inside_ip_addr_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_ADDR_FIELD_TYPE); + cnat_nfv9_template_info.bulk_dslite_del_inside_ip_addr_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IP_ADDR_FIELD_SIZE); + + cnat_nfv9_template_info.bulk_dslite_del_inside_ipv6_addr_field_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IPV6_SRC_ADDR_FIELD_TYPE); + cnat_nfv9_template_info.bulk_dslite_del_inside_ipv6_addr_field_size = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_IPV6_SRC_ADDR_FIELD_SIZE); + + cnat_nfv9_template_info.bulk_dslite_del_outside_start_port_field_type = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_IP_PORT_START_FIELD_TYPE); + cnat_nfv9_template_info.bulk_dslite_del_outside_start_port_field_size = + clib_host_to_net_u16(CNAT_NFV9_OUTSIDE_IP_PORT_START_FIELD_SIZE); + +#endif /* NO_BULK_LOGGING */ + + /* + * Ingress vrfid - name mapping + */ + CNAT_NFV9_OPTION_TEMPLATE.flowset_id = + clib_host_to_net_u16(CNAT_NFV9_OPTION_TEMPLATE_FLOWSET_ID); + CNAT_NFV9_OPTION_TEMPLATE.length = + clib_host_to_net_u16(CNAT_NFV9_OPTION_TEMPLATE_LENGTH); + + CNAT_NFV9_OPTION_TEMPLATE.ingress_vrfid_name_map_template_id = + clib_host_to_net_u16(CNAT_NFV9_INGRESS_VRF_ID_NAME_TEMPLATE_ID); + /* currently no scope field supported */ + CNAT_NFV9_OPTION_TEMPLATE.ingress_vrfid_name_map_scope_len = 0; + CNAT_NFV9_OPTION_TEMPLATE.ingress_vrfid_name_map_option_len = + clib_host_to_net_u16(CNAT_NFV9_INGRESS_VRF_ID_NAME_OPTION_LEN); + CNAT_NFV9_OPTION_TEMPLATE.ingress_vrfid_name_map_vrfid_option_type = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_VRFID_FIELD_TYPE); + CNAT_NFV9_OPTION_TEMPLATE.ingress_vrfid_name_map_vrfid_option_len = + clib_host_to_net_u16(CNAT_NFV9_INSIDE_VRFID_FIELD_SIZE); + CNAT_NFV9_OPTION_TEMPLATE.ingress_vrfid_name_map_vrfname_option_type = + clib_host_to_net_u16(CNAT_NFV9_INGRESS_VRF_NAME_FIELD_TYPE); + CNAT_NFV9_OPTION_TEMPLATE.ingress_vrfid_name_map_vrfname_option_len = + clib_host_to_net_u16(CNAT_NFV9_INGRESS_VRF_NAME_FIELD_SIZE); + + /* + * Set the padding (which was added to make the size of template + * multiple of 4) to zero + */ + CNAT_NFV9_OPTION_TEMPLATE.padding1 = 0; +} + +/* + * one time function + * has to be called at the init time + */ +void cnat_nfv9_logging_init() +{ + if (!cnat_nfv9_global_info.cnat_nfv9_init_done) { + cnat_nfv9_template_init(); + + /* Pre allocate for NFV9_SERVER_POOL_SIZE. Will be good + * enough for most deployments + */ + pool_alloc(nfv9_server_info_pool, NFV9_SERVER_POOL_SIZE); + int i; + nfv9_server_info_t *server __attribute__((unused)); + for(i = 0; i < NFV9_SERVER_POOL_SIZE; i++) { + pool_get(nfv9_server_info_pool, server); + } + + for(i = 0; i < NFV9_SERVER_POOL_SIZE; i++) { + pool_put(nfv9_server_info_pool, nfv9_server_info_pool + i); + } + + memset(&cnat_nfv9_global_info, 0 , sizeof(cnat_nfv9_global_info_t)); + ASSERT(cnat_nfv9_global_info.cnat_nfv9_disp_node_index != (u16)~0); + + cnat_nfv9_global_info.cnat_nfv9_global_collector_index = EMPTY; + cnat_nfv9_global_info.cnat_nfv9_init_done = 1; + + /* + * src id is set to infra IPv4 address + octeon core number + */ + nfv9_src_id = my_instance_number; + } +} diff --git a/plugins/vcgn-plugin/vcgn/cnat_logging.h b/plugins/vcgn-plugin/vcgn/cnat_logging.h new file mode 100644 index 00000000..7bd43ecf --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_logging.h @@ -0,0 +1,1091 @@ +/* + *------------------------------------------------------------------ + * cnat_logging.h + * + * Copyright (c) 2009, 2012 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ + +#ifndef __CNAT_LOGGING_H__ +#define __CNAT_LOGGING_H__ + +#include <stdio.h> +#include <vlib/vlib.h> +#include <vnet/vnet.h> +#include <vppinfra/vec.h> +#include <vppinfra/bitmap.h> +#include <vppinfra/hash.h> +#include <vppinfra/pool.h> +#include <vppinfra/clib.h> + +#include "nat64_db.h" +#include "cnat_log_common.h" +#include "dslite_defs.h" + +#define NFV9_DEF_PATH_MTU 1500 +#define NFV9_VRF_NAME_LEN 12 + +/* one time call at the beginning */ +void cnat_nfv9_logging_init(); + +/* + * unconditional call + * will check logging config inside + */ +void cnat_nfv9_log_mapping_create(cnat_main_db_entry_t * db, + cnat_vrfmap_t *vrfmap +#ifndef NO_BULK_LOGGING + , int bulk_alloc +#endif + ); + +void cnat_nfv9_nat44_log_session_create(cnat_main_db_entry_t * db, + cnat_session_entry_t * sdb, + cnat_vrfmap_t *vrfmap); + +void cnat_nfv9_nat44_log_session_delete(cnat_main_db_entry_t * db, + cnat_session_entry_t * sdb, + cnat_vrfmap_t *vrfmap); + + +/* + * unconditional call + * will check logging config inside + */ +void cnat_nfv9_log_mapping_delete(cnat_main_db_entry_t * db, + cnat_vrfmap_t *vrfmap +#ifndef NO_BULK_LOGGING + , int bulk_alloc +#endif + ); + +/* nat44 syslog APIs */ +void cnat_syslog_nat44_mapping_create(cnat_main_db_entry_t *db, + cnat_vrfmap_t *vrfmap, cnat_session_entry_t * sdb +#ifndef NO_BULK_LOGGING + , int bulk_alloc +#endif + ); + +void cnat_syslog_nat44_mapping_delete(cnat_main_db_entry_t *db, + cnat_vrfmap_t *vrfmap, cnat_session_entry_t *sdb +#ifndef NO_BULK_LOGGING + , int bulk_alloc +#endif + ); + +/* + * dslite + */ +void cnat_nfv9_ds_lite_mapping_create(cnat_main_db_entry_t *db, + dslite_table_entry_t *dslite_entry +#ifndef NO_BULK_LOGGING + , int bulk_alloc +#endif + ); + +void cnat_nfv9_ds_lite_mapping_delete(cnat_main_db_entry_t *db, + dslite_table_entry_t *dslite_entry +#ifndef NO_BULK_LOGGING + , int bulk_alloc +#endif + ); +void cnat_nfv9_ds_lite_log_session_create(cnat_main_db_entry_t * db, + dslite_table_entry_t *dslite_entry, + cnat_session_entry_t * sdb); + +void cnat_nfv9_ds_lite_log_session_delete(cnat_main_db_entry_t * db, + dslite_table_entry_t *dslite_entry, + cnat_session_entry_t * sdb); + +/* + * nat64 + */ + +void cnat_nfv9_bib_mapping_create (nat64_bib_entry_t *db, + nat64_table_entry_t *nat64_entry); + +void cnat_nfv9_session_mapping_create (nat64_bib_entry_t *bdb, + nat64_session_entry_t *sdb, + nat64_table_entry_t *nat64_entry_ptr); + +void cnat_nfv9_bib_mapping_delete (nat64_bib_entry_t *db, + nat64_table_entry_t *nat64_entry); + +void cnat_nfv9_session_mapping_delete (nat64_bib_entry_t *bdb, + nat64_session_entry_t *sdb, + nat64_table_entry_t *nat64_entry_ptr); + +typedef enum { + RECORD_INVALID = 0, + NAT44_ADD_RECORD, + NAT44_DEL_RECORD, + NAT64_ADD_BIB_RECORD, + NAT64_DEL_BIB_RECORD, + NAT64_ADD_SESSION_RECORD, + NAT64_DEL_SESSION_RECORD, + DS_LITE_ADD_RECORD, + DS_LITE_DEL_RECORD, + NAT44_BULK_ADD_RECORD, + NAT44_BULK_DEL_RECORD, + DS_LITE_BULK_ADD_RECORD, + DS_LITE_BULK_DEL_RECORD, + INGRESS_VRF_ID_NAME_RECORD, + NAT44_ADD_SESSION_RECORD, + NAT44_DEL_SESSION_RECORD, + DS_LITE_ADD_SESSION_RECORD, + DS_LITE_DEL_SESSION_RECORD, + MAX_RECORDS +} netflow_record; + +typedef enum { + TEMPLATE_SENT_FALSE = 0, + TEMPLATE_SENT_TRUE = 1 +} netflow_template_sent; + +#define cnat_nfv9_get_sys_up_time_in_ms cnat_get_sys_up_time_in_ms + +#define cnat_nfv9_get_unix_time_in_seconds cnat_get_unix_time_in_seconds + +#define cnat_nfv9_dump_time_change_logs cnat_dump_time_change_logs + + +/* + * Netflow V9 Specific Defines and structures + */ + +#define CNAT_NFV9_VERSION_NUMBER 9 + +#define CNAT_NFV9_TEMPLATE_FLOWSET_ID 0 +#define CNAT_NFV9_OPTION_TEMPLATE_FLOWSET_ID 1 + +#define CNAT_NFV9_ADD_FIELD_COUNT 7 +#define CNAT_NFV9_DEL_FIELD_COUNT 4 +#define CNAT_NFV9_DS_LITE_ADD_FIELD_COUNT 8 +#define CNAT_NFV9_DS_LITE_DEL_FIELD_COUNT 5 +#define CNAT_NFV9_NAT64_ADD_BIB_FIELD_COUNT 5 +#define CNAT_NFV9_NAT64_DEL_BIB_FIELD_COUNT 3 +#define CNAT_NFV9_NAT64_ADD_SESSION_FIELD_COUNT 8 +#define CNAT_NFV9_NAT64_DEL_SESSION_FIELD_COUNT 5 +#define CNAT_NFV9_NAT44_ADD_SESSION_FIELD_COUNT 9 +#define CNAT_NFV9_NAT44_DEL_SESSION_FIELD_COUNT 6 +#define CNAT_NFV9_DS_LITE_ADD_SESSION_FIELD_COUNT 10 +#define CNAT_NFV9_DS_LITE_DEL_SESSION_FIELD_COUNT 7 + +#define CNAT_NFV9_ADD_TEMPLATE_ID 256 +#define CNAT_NFV9_DEL_TEMPLATE_ID 257 +#define CNAT_NFV9_NAT64_ADD_BIB_TEMPLATE_ID 258 +#define CNAT_NFV9_NAT64_DEL_BIB_TEMPLATE_ID 259 +#define CNAT_NFV9_NAT64_ADD_SESSION_TEMPLATE_ID 260 +#define CNAT_NFV9_NAT64_DEL_SESSION_TEMPLATE_ID 261 +#define CNAT_NFV9_INGRESS_VRF_ID_NAME_TEMPLATE_ID 262 +#define CNAT_NFV9_DS_LITE_ADD_TEMPLATE_ID 267 +#define CNAT_NFV9_DS_LITE_DEL_TEMPLATE_ID 268 +#define CNAT_NFV9_NAT44_ADD_SESSION_TEMPLATE_ID 271 +#define CNAT_NFV9_NAT44_DEL_SESSION_TEMPLATE_ID 272 +#define CNAT_NFV9_DS_LITE_ADD_SESSION_TEMPLATE_ID 273 +#define CNAT_NFV9_DS_LITE_DEL_SESSION_TEMPLATE_ID 274 + +#ifndef NO_BULK_LOGGING +#define CNAT_NFV9_NAT44_BULK_ADD_TEMPLATE_ID 265 +#define CNAT_NFV9_NAT44_BULK_DEL_TEMPLATE_ID 266 +#define CNAT_NFV9_DS_LITE_BULK_ADD_TEMPLATE_ID 269 +#define CNAT_NFV9_DS_LITE_BULK_DEL_TEMPLATE_ID 270 + +#define CNAT_NFV9_NAT44_BULK_ADD_FIELD_COUNT 6 +#define CNAT_NFV9_NAT44_BULK_DEL_FIELD_COUNT 3 +#define CNAT_NFV9_DS_LITE_BULK_ADD_FIELD_COUNT 7 +#define CNAT_NFV9_DS_LITE_BULK_DEL_FIELD_COUNT 4 + +#define CNAT_NFV9_OUTSIDE_IP_PORT_START_FIELD_TYPE 361 +#define CNAT_NFV9_OUTSIDE_IP_PORT_START_FIELD_SIZE 2 + +#define CNAT_NFV9_OUTSIDE_IP_PORT_END_FIELD_TYPE 362 +#define CNAT_NFV9_OUTSIDE_IP_PORT_END_FIELD_SIZE 2 + +#endif /* #ifndef NO_BULK_LOGGING */ + +#define CNAT_NFV9_INGRESS_VRF_NAME_FIELD_TYPE 236 +#define CNAT_NFV9_INGRESS_VRF_NAME_FIELD_SIZE 12 +/* 4 byte for vrf_id + 4 byte for vrf_name (option fields) */ +#define CNAT_NFV9_INGRESS_VRF_ID_NAME_OPTION_LEN 8 +extern u16 cnat_template_id[MAX_RECORDS]; + +#define CNAT_NFV9_INSIDE_VRFID_FIELD_TYPE 234 +#define CNAT_NFV9_INSIDE_VRFID_FIELD_SIZE 4 + +#define CNAT_NFV9_OUTSIDE_VRFID_FIELD_TYPE 235 +#define CNAT_NFV9_OUTSIDE_VRFID_FIELD_SIZE 4 + +#define CNAT_NFV9_INSIDE_IP_ADDR_FIELD_TYPE 8 +#define CNAT_NFV9_INSIDE_IP_ADDR_FIELD_SIZE 4 + +#define CNAT_NFV9_OUTSIDE_IP_ADDR_FIELD_TYPE 225 +#define CNAT_NFV9_OUTSIDE_IP_ADDR_FIELD_SIZE 4 + +#define CNAT_NFV9_INSIDE_IP_PORT_FIELD_TYPE 7 +#define CNAT_NFV9_INSIDE_IP_PORT_FIELD_SIZE 2 + +#define CNAT_NFV9_OUTSIDE_IP_PORT_FIELD_TYPE 227 +#define CNAT_NFV9_OUTSIDE_IP_PORT_FIELD_SIZE 2 + +#define CNAT_NFV9_PROTOCOL_FIELD_TYPE 4 +#define CNAT_NFV9_PROTOCOL_FIELD_SIZE 1 + +/* IPv6 related info */ + +#define CNAT_NFV9_INSIDE_IPV6_SRC_ADDR_FIELD_TYPE 27 +#define CNAT_NFV9_INSIDE_IPV6_SRC_ADDR_FIELD_SIZE 16 + +#define CNAT_NFV9_INSIDE_IPV6_DST_ADDR_FIELD_TYPE 28 +#define CNAT_NFV9_INSIDE_IPV6_DST_ADDR_FIELD_SIZE 16 + +#define CNAT_NFV9_OUTSIDE_IP_DST_ADDR_FIELD_TYPE 226 +#define CNAT_NFV9_OUTSIDE_IP_DST_ADDR_FIELD_SIZE 4 + +#define CNAT_NFV9_INSIDE_DST_PORT_FIELD_TYPE 11 +#define CNAT_NFV9_INSIDE_DST_PORT_FIELD_SIZE 2 + +#define CNAT_NFV9_DESTINATION_IP_ADDR_FIELD_TYPE 12 +#define CNAT_NFV9_DESTINATION_IP_ADDR_FIELD_SIZE 4 + + +typedef struct { + u16 version; + u16 count; + u32 sys_up_time; /* time in ms since system was booted */ + u32 timestamp; /* UNIX time in seconds since 1970 */ + u32 sequence_num; + u32 source_id; +} nfv9_header_t; + +/* + * Hardcoded - need to be fixed + */ +#define CNAT_NFV9_SOURCE_ID_VALUE 0x1234 + +typedef struct { + u16 flowset_id; + u16 length; + + u16 ingress_vrfid_name_map_template_id; + u16 ingress_vrfid_name_map_scope_len; + u16 ingress_vrfid_name_map_option_len; + u16 ingress_vrfid_name_map_vrfid_option_type; + u16 ingress_vrfid_name_map_vrfid_option_len; + u16 ingress_vrfid_name_map_vrfname_option_type; + u16 ingress_vrfid_name_map_vrfname_option_len; + /* + * Adding the padding so as to make the tempalate + * structure end on a 4 byte boundary + */ + u16 padding1; + +} cnat_nfv9_option_template_t; + +/* + * The following structure defines the Netflow Template that + * will be exported to the Netflow Collector + */ + +typedef struct { + u16 flowset_id; + u16 length; + + u16 add_template_id; + u16 add_field_count; + u16 add_inside_vrf_id_field_type; + u16 add_inside_vrf_id_field_size; + u16 add_outside_vrf_id_field_type; + u16 add_outside_vrf_id_field_size; + u16 add_inside_ip_addr_field_type; + u16 add_inside_ip_addr_field_size; + u16 add_outside_ip_addr_field_type; + u16 add_outside_ip_addr_field_size; + u16 add_inside_ip_port_field_type; + u16 add_inside_ip_port_field_size; + u16 add_outside_ip_port_field_type; + u16 add_outside_ip_port_field_size; + u16 add_protocol_field_type; + u16 add_protocol_field_size; + + u16 del_template_id; + u16 del_field_count; + u16 del_inside_vrf_id_field_type; + u16 del_inside_vrf_id_field_size; + u16 del_inside_ip_addr_field_type; + u16 del_inside_ip_addr_field_size; + u16 del_inside_ip_port_field_type; + u16 del_inside_ip_port_field_size; + u16 del_protocol_field_type; + u16 del_protocol_field_size; +#if 0 + /* NAT64 related info */ + u16 nat64_add_bib_template_id; + u16 nat64_add_bib_field_count; + u16 nat64_add_bib_inside_ipv6_addr_field_type; + u16 nat64_add_bib_inside_ipv6_addr_field_size; + u16 nat64_add_bib_outside_ip_addr_field_type; + u16 nat64_add_bib_outside_ip_addr_field_size; + u16 nat64_add_bib_inside_ip_port_field_type; + u16 nat64_add_bib_inside_ip_port_field_size; + u16 nat64_add_bib_outside_ip_port_field_type; + u16 nat64_add_bib_outside_ip_port_field_size; + u16 nat64_add_bib_protocol_field_type; + u16 nat64_add_bib_protocol_field_size; + + u16 nat64_del_bib_template_id; + u16 nat64_del_bib_field_count; + u16 nat64_del_bib_inside_ip_addr_field_type; + u16 nat64_del_bib_inside_ip_addr_field_size; + u16 nat64_del_bib_inside_ip_port_field_type; + u16 nat64_del_bib_inside_ip_port_field_size; + u16 nat64_del_bib_protocol_field_type; + u16 nat64_del_bib_protocol_field_size; + + + u16 nat64_add_session_template_id; + u16 nat64_add_session_field_count; + u16 nat64_add_session_inside_ipv6_src_addr_field_type; + u16 nat64_add_session_inside_ipv6_src_addr_field_size; + u16 nat64_add_session_outside_ip_src_addr_field_type; + u16 nat64_add_session_outside_ip_src_addr_field_size; + u16 nat64_add_session_inside_ipv6_dst_addr_field_type; + u16 nat64_add_session_inside_ipv6_dst_addr_field_size; + u16 nat64_add_session_outside_ip_dst_addr_field_type; + u16 nat64_add_session_outside_ip_dst_addr_field_size; + u16 nat64_add_session_inside_ip_src_port_field_type; + u16 nat64_add_session_inside_ip_src_port_field_size; + u16 nat64_add_session_outside_ip_src_port_field_type; + u16 nat64_add_session_outside_ip_src_port_field_size; + u16 nat64_add_session_ip_dest_port_field_type; + u16 nat64_add_session_ip_dest_port_field_size; + u16 nat64_add_session_protocol_field_type; + u16 nat64_add_session_protocol_field_size; + + u16 nat64_del_session_template_id; + u16 nat64_del_session_field_count; + u16 nat64_del_session_inside_ip_src_addr_field_type; + u16 nat64_del_session_inside_ip_src_addr_field_size; + u16 nat64_del_session_inside_ip_dst_addr_field_type; + u16 nat64_del_session_inside_ip_dst_addr_field_size; + u16 nat64_del_session_inside_ip_src_port_field_type; + u16 nat64_del_session_inside_ip_src_port_field_size; + u16 nat64_del_session_inside_ip_dst_port_field_type; + u16 nat64_del_session_inside_ip_dst_port_field_size; + u16 nat64_del_session_protocol_field_type; + u16 nat64_del_session_protocol_field_size; + + /* + * Ds-Lite specific info + */ + u16 add_dslite_template_id; + u16 add_dslite_field_count; + u16 add_dslite_inside_vrf_id_field_type; + u16 add_dslite_inside_vrf_id_field_size; + u16 add_dslite_outside_vrf_id_field_type; + u16 add_dslite_outside_vrf_id_field_size; + u16 add_dslite_inside_ip_addr_field_type; + u16 add_dslite_inside_ip_addr_field_size; + u16 add_dslite_inside_ipv6_addr_field_type; + u16 add_dslite_inside_ipv6_addr_field_size; + u16 add_dslite_outside_ip_addr_field_type; + u16 add_dslite_outside_ip_addr_field_size; + u16 add_dslite_inside_ip_port_field_type; + u16 add_dslite_inside_ip_port_field_size; + u16 add_dslite_outside_ip_port_field_type; + u16 add_dslite_outside_ip_port_field_size; + u16 add_dslite_protocol_field_type; + u16 add_dslite_protocol_field_size; + + u16 del_dslite_template_id; + u16 del_dslite_field_count; + u16 del_dslite_inside_vrf_id_field_type; + u16 del_dslite_inside_vrf_id_field_size; + u16 del_dslite_inside_ip_addr_field_type; + u16 del_dslite_inside_ip_addr_field_size; + u16 del_dslite_inside_ipv6_addr_field_type; + u16 del_dslite_inside_ipv6_addr_field_size; + u16 del_dslite_inside_ip_port_field_type; + u16 del_dslite_inside_ip_port_field_size; + u16 del_dslite_protocol_field_type; + u16 del_dslite_protocol_field_size; +#endif + +//#ifndef NO_BULK_LOGGING /* commenting for time being */ +#if 0 + u16 bulk_add_template_id; + u16 bulk_add_field_count; + u16 bulk_add_inside_vrf_id_field_type; + u16 bulk_add_inside_vrf_id_field_size; + u16 bulk_add_outside_vrf_id_field_type; + u16 bulk_add_outside_vrf_id_field_size; + u16 bulk_add_inside_ip_addr_field_type; + u16 bulk_add_inside_ip_addr_field_size; + u16 bulk_add_outside_ip_addr_field_type; + u16 bulk_add_outside_ip_addr_field_size; + u16 bulk_add_outside_start_port_field_type; + u16 bulk_add_outside_start_port_field_size; + u16 bulk_add_outside_end_port_field_type; + u16 bulk_add_outside_end_port_field_size; + + u16 bulk_del_template_id; + u16 bulk_del_field_count; + u16 bulk_del_inside_vrf_id_field_type; + u16 bulk_del_inside_vrf_id_field_size; + u16 bulk_del_inside_ip_addr_field_type; + u16 bulk_del_inside_ip_addr_field_size; + u16 bulk_del_outside_start_port_field_type; + u16 bulk_del_outside_start_port_field_size; + + /* ds-lite bulk logging create delete event */ + + u16 bulk_dslite_add_template_id; + u16 bulk_dslite_add_field_count; + u16 bulk_dslite_add_inside_vrf_id_field_type; + u16 bulk_dslite_add_inside_vrf_id_field_size; + u16 bulk_dslite_add_outside_vrf_id_field_type; + u16 bulk_dslite_add_outside_vrf_id_field_size; + u16 bulk_dslite_add_inside_ip_addr_field_type; + u16 bulk_dslite_add_inside_ip_addr_field_size; + u16 bulk_dslite_add_inside_ipv6_addr_field_type; + u16 bulk_dslite_add_inside_ipv6_addr_field_size; + u16 bulk_dslite_add_outside_ip_addr_field_type; + u16 bulk_dslite_add_outside_ip_addr_field_size; + u16 bulk_dslite_add_outside_start_port_field_type; + u16 bulk_dslite_add_outside_start_port_field_size; + u16 bulk_dslite_add_outside_end_port_field_type; + u16 bulk_dslite_add_outside_end_port_field_size; + + u16 bulk_dslite_del_template_id; + u16 bulk_dslite_del_field_count; + u16 bulk_dslite_del_inside_vrf_id_field_type; + u16 bulk_dslite_del_inside_vrf_id_field_size; + u16 bulk_dslite_del_inside_ip_addr_field_type; + u16 bulk_dslite_del_inside_ip_addr_field_size; + u16 bulk_dslite_del_inside_ipv6_addr_field_type; + u16 bulk_dslite_del_inside_ipv6_addr_field_size; + u16 bulk_dslite_del_outside_start_port_field_type; + u16 bulk_dslite_del_outside_start_port_field_size; + +#endif /* NO_BULK_LOGGING */ + + u16 nat44_session_add_template_id; + u16 nat44_session_add_field_count; + u16 nat44_session_add_inside_vrf_id_field_type; + u16 nat44_session_add_inside_vrf_id_field_size; + u16 nat44_session_add_outside_vrf_id_field_type; + u16 nat44_session_add_outside_vrf_id_field_size; + u16 nat44_session_add_inside_ip_addr_field_type; + u16 nat44_session_add_inside_ip_addr_field_size; + u16 nat44_session_add_outside_ip_addr_field_type; + u16 nat44_session_add_outside_ip_addr_field_size; + u16 nat44_session_add_inside_ip_port_field_type; + u16 nat44_session_add_inside_ip_port_field_size; + u16 nat44_session_add_outside_ip_port_field_type; + u16 nat44_session_add_outside_ip_port_field_size; + u16 nat44_session_add_dest_ip_addr_field_type; + u16 nat44_session_add_dest_ip_addr_field_size; + u16 nat44_session_add_dest_port_field_type; + u16 nat44_session_add_dest_port_field_size; + u16 nat44_session_add_protocol_field_type; + u16 nat44_session_add_protocol_field_size; + + u16 nat44_session_del_template_id; + u16 nat44_session_del_field_count; + u16 nat44_session_del_inside_vrf_id_field_type; + u16 nat44_session_del_inside_vrf_id_field_size; + u16 nat44_session_del_inside_ip_addr_field_type; + u16 nat44_session_del_inside_ip_addr_field_size; + u16 nat44_session_del_dest_ip_addr_field_type; + u16 nat44_session_del_dest_ip_addr_field_size; + u16 nat44_session_del_inside_ip_port_field_type; + u16 nat44_session_del_inside_ip_port_field_size; + u16 nat44_session_del_dest_port_field_type; + u16 nat44_session_del_dest_port_field_size; + u16 nat44_session_del_protocol_field_type; + u16 nat44_session_del_protocol_field_size; + +#if 0 + u16 add_dslite_session_template_id; + u16 add_dslite_session_field_count; + u16 add_dslite_session_inside_vrf_id_field_type; + u16 add_dslite_session_inside_vrf_id_field_size; + u16 add_dslite_session_outside_vrf_id_field_type; + u16 add_dslite_session_outside_vrf_id_field_size; + u16 add_dslite_session_inside_ip_addr_field_type; + u16 add_dslite_session_inside_ip_addr_field_size; + u16 add_dslite_session_inside_ipv6_addr_field_type; + u16 add_dslite_session_inside_ipv6_addr_field_size; + u16 add_dslite_session_outside_ip_addr_field_type; + u16 add_dslite_session_outside_ip_addr_field_size; + u16 add_dslite_session_inside_ip_port_field_type; + u16 add_dslite_session_inside_ip_port_field_size; + u16 add_dslite_session_outside_ip_port_field_type; + u16 add_dslite_session_outside_ip_port_field_size; + u16 add_dslite_session_dest_ip_addr_field_type; + u16 add_dslite_session_dest_ip_addr_field_size; + u16 add_dslite_session_dest_port_field_type; + u16 add_dslite_session_dest_port_field_size; + u16 add_dslite_session_protocol_field_type; + u16 add_dslite_session_protocol_field_size; + + u16 del_dslite_session_template_id; + u16 del_dslite_session_field_count; + u16 del_dslite_session_inside_vrf_id_field_type; + u16 del_dslite_session_inside_vrf_id_field_size; + u16 del_dslite_session_inside_ip_addr_field_type; + u16 del_dslite_session_inside_ip_addr_field_size; + u16 del_dslite_session_inside_ipv6_addr_field_type; + u16 del_dslite_session_inside_ipv6_addr_field_size; + u16 del_dslite_session_dest_ip_addr_field_type; + u16 del_dslite_session_dest_ip_addr_field_size; + u16 del_dslite_session_inside_ip_port_field_type; + u16 del_dslite_session_inside_ip_port_field_size; + u16 del_dslite_session_dest_port_field_type; + u16 del_dslite_session_dest_port_field_size; + u16 del_dslite_session_protocol_field_type; + u16 del_dslite_session_protocol_field_size; +#endif + + /* + * Netflow option template + * Ingress VRF ID - Name mapping + * This template will be sent under flowset id 1 + */ + cnat_nfv9_option_template_t cnat_nfv9_option_template; +} cnat_nfv9_template_t; + +/* + * The Dataflow header for each add/delete record group + */ +typedef struct { + u16 dataflow_template_id; + u16 dataflow_length; +} nfv9_dataflow_record_header_t; + +/* + * NFv9 Add record definition + */ + +/* + * pad bytes needed to make the structure a multiple of 4 bytes + */ +#define CNAT_NFV9_ADD_RECORD_PAD_BYTES (3) +#define CNAT_NFV9_DEL_RECORD_PAD_BYTES (1) + +#define CNAT_NFV9_NAT64_ADD_BIB_RECORD_PAD_BYTES (3) +#define CNAT_NFV9_NAT64_DEL_BIB_RECORD_PAD_BYTES (1) +#define CNAT_NFV9_NAT64_ADD_SESSION_RECORD_PAD_BYTES (1) +#define CNAT_NFV9_NAT64_DEL_SESSION_RECORD_PAD_BYTES (3) +#define CNAT_NFV9_NAT44_ADD_SESSION_RECORD_PAD_BYTES (1) +#define CNAT_NFV9_NAT44_DEL_SESSION_RECORD_PAD_BYTES (3) + +#define CNAT_NFV9_DS_LITE_ADD_RECORD_PAD_BYTES (3) +#define CNAT_NFV9_DS_LITE_DEL_RECORD_PAD_BYTES (1) +#define CNAT_NFV9_DS_LITE_ADD_SESSION_RECORD_PAD_BYTES (1) +#define CNAT_NFV9_DS_LITE_DEL_SESSION_RECORD_PAD_BYTES (3) + +#define CNAT_NFV9_INGRESS_VRFID_NAME_RECORD_PAD_BYTES (0) + +typedef struct { + u32 inside_vrf_id; + u32 outside_vrf_id; + u32 inside_ip_addr; + u32 outside_ip_addr; + u16 inside_ip_port; + u16 outside_ip_port; + u8 protocol; + u8 pad[CNAT_NFV9_ADD_RECORD_PAD_BYTES]; +} nfv9_add_record_t; + +/* + * NFv9 Delete record definition + */ +typedef struct { + u32 inside_vrf_id; + u32 inside_ip_addr; + u16 inside_ip_port; + u8 protocol; + u8 pad[CNAT_NFV9_DEL_RECORD_PAD_BYTES]; +} nfv9_del_record_t; + +#ifndef NO_BULK_LOGGING + +#define CNAT_NFV9_BULK_ADD_RECORD_PAD_BYTES (0) +#define CNAT_NFV9_BULK_DEL_RECORD_PAD_BYTES (2) + +typedef struct { + u32 inside_vrf_id; + u32 outside_vrf_id; + u32 inside_ip_addr; + u32 outside_ip_addr; + u16 outside_ip_port_start; + u16 outside_ip_port_end; + u8 pad[CNAT_NFV9_BULK_ADD_RECORD_PAD_BYTES]; +} nfv9_bulk_add_record_t; + +/* + * NFv9 Delete record definition + */ +typedef struct { + u32 inside_vrf_id; + u32 inside_ip_addr; + u16 outside_ip_port_start; + u8 pad[CNAT_NFV9_BULK_DEL_RECORD_PAD_BYTES]; +} nfv9_bulk_del_record_t; + +/* + * DS-lite bulk port (user based) add record definition + */ + +#define CNAT_NFV9_DS_LITE_BULK_ADD_RECORD_PAD_BYTES (0) +#define CNAT_NFV9_DS_LITE_BULK_DEL_RECORD_PAD_BYTES (2) + +typedef struct { + u32 inside_vrf_id; + u32 outside_vrf_id; + u32 inside_ip_addr; + u32 inside_v6_src_addr[4]; + u32 outside_ip_addr; + u16 outside_ip_port_start; + u16 outside_ip_port_end; + u8 pad[CNAT_NFV9_DS_LITE_BULK_ADD_RECORD_PAD_BYTES]; +} nfv9_ds_lite_bulk_add_record_t; + + +/* + * DS-lite bulk port (user based) delete record definition + */ + +typedef struct { + u32 inside_vrf_id; + u32 inside_ip_addr; + u32 inside_v6_src_addr[4]; + u16 outside_ip_port_start; + u8 pad[CNAT_NFV9_DS_LITE_BULK_DEL_RECORD_PAD_BYTES]; +} nfv9_ds_lite_bulk_del_record_t; + +#endif /* NO_BULK_LOGGING */ + +/* NAT64 related structures */ + +typedef struct { + u32 inside_v6_src_addr[4]; + u32 outside_v4_src_addr; + u16 inside_src_port; + u16 outside_src_port; + u8 protocol; + u8 pad[CNAT_NFV9_NAT64_ADD_BIB_RECORD_PAD_BYTES]; +} nfv9_nat64_add_bib_record_t; + + +typedef struct { + u32 inside_v6_src_addr[4]; + u32 outside_v4_src_addr; + u32 inside_v6_dest_addr[4]; + u32 outside_v4_dest_addr; + u16 inside_src_port; + u16 outside_src_port; + u16 dest_port; + u8 protocol; + u8 pad[CNAT_NFV9_NAT64_ADD_SESSION_RECORD_PAD_BYTES]; +} nfv9_nat64_add_session_record_t; + + +typedef struct { + u32 inside_v6_src_addr[4]; + u16 inside_src_port; + u8 protocol; + u8 pad[CNAT_NFV9_NAT64_DEL_BIB_RECORD_PAD_BYTES]; +} nfv9_nat64_del_bib_record_t; + + +typedef struct { + u32 inside_v6_src_addr[4]; + u32 inside_v6_dest_addr[4]; + u16 inside_src_port; + u16 dest_port; + u8 protocol; + u8 pad[CNAT_NFV9_NAT64_DEL_SESSION_RECORD_PAD_BYTES]; +} nfv9_nat64_del_session_record_t; + +/* + * NFv9 Session based Add record definition + */ +typedef struct { + u32 inside_vrf_id; + u32 outside_vrf_id; + u32 inside_ip_addr; + u32 outside_ip_addr; + u16 inside_ip_port; + u16 outside_ip_port; + u32 dest_ip_addr; + u16 dest_port; + u8 protocol; + u8 pad[CNAT_NFV9_NAT44_ADD_SESSION_RECORD_PAD_BYTES]; +} nfv9_add_session_record_t; + +/* + * NFv9 Session based del record definition + */ +typedef struct { + u32 inside_vrf_id; + u32 inside_ip_addr; + u32 dest_ip_addr; + u16 inside_ip_port; + u16 dest_port; + u8 protocol; + u8 pad[CNAT_NFV9_NAT44_DEL_SESSION_RECORD_PAD_BYTES]; +} nfv9_del_session_record_t; + +/* + * DS-lite NFv9 create record structure + */ +typedef struct { + u32 inside_vrf_id; + u32 outside_vrf_id; + u32 inside_ip_addr; + u32 inside_v6_src_addr[4]; + u32 outside_ip_addr; + u16 inside_ip_port; + u16 outside_ip_port; + u8 protocol; + u8 pad[CNAT_NFV9_DS_LITE_ADD_RECORD_PAD_BYTES]; +} nfv9_ds_lite_add_record_t; + +typedef struct { + u32 inside_vrf_id; + u32 inside_ip_addr; + u32 inside_v6_src_addr[4]; + u16 inside_ip_port; + u8 protocol; + u8 pad[CNAT_NFV9_DS_LITE_DEL_RECORD_PAD_BYTES]; +} nfv9_ds_lite_del_record_t; + +/* + * NFv9 Session based Add record definition + */ +typedef struct { + u32 inside_vrf_id; + u32 outside_vrf_id; + u32 inside_ip_addr; + u32 inside_v6_src_addr[4]; + u32 outside_ip_addr; + u16 inside_ip_port; + u16 outside_ip_port; + u32 dest_ip_addr; + u16 dest_port; + u8 protocol; + u8 pad[CNAT_NFV9_DS_LITE_ADD_SESSION_RECORD_PAD_BYTES]; +} nfv9_ds_lite_add_session_record_t; + +/* + * NFv9 Session based del record definition + */ +typedef struct { + u32 inside_vrf_id; + u32 inside_ip_addr; + u32 inside_v6_src_addr[4]; + u32 dest_ip_addr; + u16 inside_ip_port; + u16 dest_port; + u8 protocol; + u8 pad[CNAT_NFV9_DS_LITE_DEL_SESSION_RECORD_PAD_BYTES]; +} nfv9_ds_lite_del_session_record_t; + + +typedef struct { + u32 ingress_vrf_id; + u8 ingress_vrf_name[NFV9_VRF_NAME_LEN]; + u8 pad[CNAT_NFV9_INGRESS_VRFID_NAME_RECORD_PAD_BYTES]; +} nfv9_ingress_vrfid_name_record_t; + +#define CNAT_NFV9_TEMPLATE_OFFSET \ + (CNAT_NFV9_HDR_OFFSET + sizeof(nfv9_header_t)) + +#define CNAT_NFV9_TEMPLATE_LENGTH (sizeof(cnat_nfv9_template_t)) +#define CNAT_NFV9_OPTION_TEMPLATE_LENGTH (sizeof(cnat_nfv9_option_template_t)) + +#define CNAT_NFV9_DATAFLOW_RECORD_HEADER_LENGTH \ + (sizeof(nfv9_dataflow_record_header_t)) + +/* + * No padding is needed for the add/delete records - reduce padding bytes + */ + +#define CNAT_NFV9_ADD_RECORD_LENGTH (sizeof(nfv9_add_record_t) - \ + CNAT_NFV9_ADD_RECORD_PAD_BYTES) + +#define CNAT_NFV9_DEL_RECORD_LENGTH (sizeof(nfv9_del_record_t) - \ + CNAT_NFV9_DEL_RECORD_PAD_BYTES) + +#define CNAT_NFV9_DS_LITE_ADD_RECORD_LENGTH (sizeof(nfv9_ds_lite_add_record_t) - \ + CNAT_NFV9_DS_LITE_ADD_RECORD_PAD_BYTES) +#define CNAT_NFV9_DS_LITE_DEL_RECORD_LENGTH (sizeof(nfv9_ds_lite_del_record_t) - \ + CNAT_NFV9_DS_LITE_DEL_RECORD_PAD_BYTES) +#ifndef NO_BULK_LOGGING +#define CNAT_NFV9_BULK_ADD_RECORD_LENGTH (sizeof(nfv9_bulk_add_record_t) - \ + CNAT_NFV9_BULK_ADD_RECORD_PAD_BYTES) +#define CNAT_NFV9_BULK_DEL_RECORD_LENGTH (sizeof(nfv9_bulk_del_record_t) - \ + CNAT_NFV9_BULK_DEL_RECORD_PAD_BYTES) + +#define CNAT_NFV9_DS_LITE_BULK_ADD_RECORD_LENGTH (sizeof(nfv9_ds_lite_bulk_add_record_t) - \ + CNAT_NFV9_DS_LITE_BULK_ADD_RECORD_PAD_BYTES) +#define CNAT_NFV9_DS_LITE_BULK_DEL_RECORD_LENGTH (sizeof(nfv9_ds_lite_bulk_del_record_t) - \ + CNAT_NFV9_DS_LITE_BULK_DEL_RECORD_PAD_BYTES) + + +#endif /* NO_BULK_LOGGING */ + +#define CNAT_NFV9_INGRESS_VRFID_NAME_RECORD_LENGTH (sizeof(nfv9_ingress_vrfid_name_record_t) - \ + CNAT_NFV9_INGRESS_VRFID_NAME_RECORD_PAD_BYTES) + +#define CNAT_NFV9_NAT64_ADD_BIB_RECORD_LENGTH \ + (sizeof(nfv9_nat64_add_bib_record_t) - \ + CNAT_NFV9_NAT64_ADD_BIB_RECORD_PAD_BYTES) + +#define CNAT_NFV9_NAT64_DEL_BIB_RECORD_LENGTH \ + (sizeof(nfv9_nat64_del_bib_record_t) - \ + CNAT_NFV9_NAT64_DEL_BIB_RECORD_PAD_BYTES) + +#define CNAT_NFV9_NAT64_ADD_SESSION_RECORD_LENGTH \ + (sizeof(nfv9_nat64_add_session_record_t) - \ + CNAT_NFV9_NAT64_ADD_SESSION_RECORD_PAD_BYTES) + +#define CNAT_NFV9_NAT64_DEL_SESSION_RECORD_LENGTH \ + (sizeof(nfv9_nat64_del_session_record_t) - \ + CNAT_NFV9_NAT64_DEL_SESSION_RECORD_PAD_BYTES) + +#define CNAT_NFV9_MAX_SINGLE_RECORD_LENGTH \ + (sizeof(nfv9_ds_lite_add_session_record_t) - \ + CNAT_NFV9_DS_LITE_ADD_SESSION_RECORD_PAD_BYTES) + +#define CNAT_NFV9_NAT44_ADD_SESSION_RECORD_LENGTH \ + (sizeof(nfv9_add_session_record_t) -\ + CNAT_NFV9_NAT44_ADD_SESSION_RECORD_PAD_BYTES) + +#define CNAT_NFV9_NAT44_DEL_SESSION_RECORD_LENGTH \ + (sizeof(nfv9_del_session_record_t) -\ + CNAT_NFV9_NAT44_DEL_SESSION_RECORD_PAD_BYTES) + +#define CNAT_NFV9_DS_LITE_ADD_SESSION_RECORD_LENGTH \ + (sizeof(nfv9_ds_lite_add_session_record_t) -\ + CNAT_NFV9_DS_LITE_ADD_SESSION_RECORD_PAD_BYTES) + +#define CNAT_NFV9_DS_LITE_DEL_SESSION_RECORD_LENGTH \ + (sizeof(nfv9_ds_lite_del_session_record_t) -\ + CNAT_NFV9_DS_LITE_DEL_SESSION_RECORD_PAD_BYTES) + +/* + * Minimum value of the path MTU value + */ +#define CNAT_NFV9_MIN_RECORD_SIZE (60 + \ + CNAT_NFV9_DATAFLOW_RECORD_HEADER_LENGTH + \ + CNAT_NFV9_TEMPLATE_LENGTH + \ + CNAT_NFV9_MAX_SINGLE_RECORD_LENGTH) + +/* + * Let us put the maximum length of the netflow data to be 1400 + */ +#define CNAT_NFV9_MAX_PKT_LENGTH 1400 + +/* + * Data structures and defines to store NFV9 specific info + */ +#define CNAT_NFV9_INVALID_LOGGING_INDEX 0xffffffff + +/* + * Padding value between ADD and DELETE records. This can be atmost 3 bytes + */ +#define NFV9_PAD_VALUE (3) + +typedef struct { + /* NFV9 server specific info + * For now, it will maintain only package sequence count. + * Later it will maintain server address, port, etc. + * Though it currently has server address and port, it is only for + * cross refernce + */ + u32 ipv4_address; /* Destination IP address of the collector */ + u16 port; /* Destination port number of the collector */ + u16 refresh_rate; /* Refresh rate in packets after which template is sent */ + u16 timeout_rate; /* Timeout rate in seconds after which template is sent */ + u16 ref_count; /* Num of instances using this data */ + u32 sequence_num; /* Sequence number of the logging packet */ + /* + * Keep track of the time and packets since last template send + */ + u32 last_template_sent_time; + u32 pkts_since_last_template; + u8 template_sent; /* used while sending vrfid-name mapping */ + +} nfv9_server_info_t; + +/* + * This structure store the Netflow Logging information on per NFv9 + * collector basis. This structure is allocated from a pool and index + * to this structure is stored VRF MAP structures + */ +typedef struct { + /* + * nat64_id will be 0 for nat44 config and i_vrf_id, i_vrf will be 0 + * for nat64 config. Nat64_id will be used while nat64 collector is + * search and i_vrf* for nat44 collector + */ + /* Similarly for ds_lite, ds_lite_id will be used and nat64_id, + * ivrf_id shall be set to 0 + */ + u32 i_vrf_id; /* Inside VRF ID corresponding to this collector */ + u16 i_vrf; /* Inside VRF (uidb_index) corresponding to this collector */ + u16 nat64_id; /* NAT64 instance for to this collector */ + u16 ds_lite_id; /* DS Lite instance for this collector */ + + /* + * This field determines the maximum size of the Netflow V9 information + * that can be stored in a logging packet + */ + u16 max_length_minus_max_record_size; + + /* + * Indicates if the entry is already deleted + */ + u16 deleted; + + u16 pkt_length; /* Length of the currently NFv9 information */ + u16 record_length[MAX_RECORDS]; /* Length of delete record */ + u16 total_record_count; /* Total number of records including templates */ + + u8 logging_policy; + + /* + * Keep track of the time and packets since last template send + */ + u32 last_template_sent_time; + u32 pkts_since_last_template; + + /* Server info */ + u32 server_index; + + /* + * current logging context + */ + vlib_buffer_t *current_logging_context; + + /* + * Timestamp in UNIX seconds corresponding to when the current + * logging packet was created + */ + u32 current_logging_context_timestamp; + + /* + * Queued logging context waiting to be sent to the l3 infra node + */ + vlib_buffer_t *queued_logging_context; + + /* + * Headers corresponding to various records in this + * current nfv9 logging context + */ + nfv9_header_t *nfv9_header; + cnat_nfv9_template_t *nfv9_template_header; + nfv9_dataflow_record_header_t *dataflow_header; + u8 *record[MAX_RECORDS]; + u8 *next_data_ptr; + u8 last_record; + u32 nfv9_logging_next_index; + u32 ip4_input_node_index; + vlib_frame_t *f; + u32 *to_next; +} cnat_nfv9_logging_info_t; + + +/* + * Global structure for CGN APP configuration + */ +typedef struct { + /* + * Global NFv9 Logging Collector Index + */ + u32 cnat_nfv9_global_collector_index; + + /* + * Node index corresponding to the infra L3 output node + * to which the nfv9 logging node will send the packet + */ + u16 cnat_nfv9_disp_node_index; + + /* + * Whether we have initialized the NFv9 information + */ + u8 cnat_nfv9_init_done; +} cnat_nfv9_global_info_t; + +typedef enum { + cnat_nfv9_template_add_default, + cnat_nfv9_template_add_always +} cnat_nfv9_template_add_flag_t; + +extern cnat_nfv9_template_t cnat_nfv9_template_info; + +extern cnat_nfv9_logging_info_t cnat_default_nfv9_logging_info; +extern cnat_nfv9_logging_info_t *cnat_nfv9_logging_info_pool; + +extern cnat_nfv9_global_info_t cnat_nfv9_global_info; +extern nfv9_server_info_t *nfv9_server_info_pool; + +/* #define DEBUG_NF_SERVER_CONFIG 1 */ +static inline void nfv9_delete_server_info(cnat_nfv9_logging_info_t *nfv9_info) +{ + nfv9_server_info_t *server = nfv9_server_info_pool + + nfv9_info->server_index; + if(nfv9_info->server_index == EMPTY) { +#ifdef DEBUG_NF_SERVER_CONFIG + if(my_instance_number == 1) { + PLATFORM_DEBUG_PRINT("Deleting empty server info\n"); + } +#endif /* #ifdef DEBUG_NF_SERVER_CONFIG */ + return; + } + + /* Check if this server is not used by anyone.. if not delete */ + /* Caller of this function does not need it..so decrement ref count */ + server->ref_count--; + if(!(server->ref_count)) { +#ifdef DEBUG_NF_SERVER_CONFIG + if(my_instance_number == 1) { + PLATFORM_DEBUG_PRINT("Deleting nfv9 server %x, %d at %d\n", + server->ipv4_address, + server->port, + nfv9_info->server_index); + } +#endif /* #ifdef DEBUG_NF_SERVER_CONFIG */ + pool_put(nfv9_server_info_pool, server); + nfv9_info->server_index = EMPTY; + } +#ifdef DEBUG_NF_SERVER_CONFIG + else { + if(my_instance_number == 1) { + PLATFORM_DEBUG_PRINT("Not Deleting nfv9 server %x, %d rc %d\n", + server->ipv4_address, + server->port, + server->ref_count); + } + } +#endif /* #ifdef DEBUG_NF_SERVER_CONFIG */ + return; +} + +void handle_pending_nfv9_pkts(); +#endif /* __CNAT_LOGGING_H__ */ diff --git a/plugins/vcgn-plugin/vcgn/cnat_pcp_server.h b/plugins/vcgn-plugin/vcgn/cnat_pcp_server.h new file mode 100644 index 00000000..c77c6a87 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_pcp_server.h @@ -0,0 +1,398 @@ +/* + *------------------------------------------------------------------ + * cnat_pcp_server.h + * + * Copyright (c) 2009-2012 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ + +#ifndef __CNAT_PCP_SERVER_H__ +#define __CNAT_PCP_SERVER_H__ + +#include "dslite_defs.h" + +/* Debug utils of PCP */ +#define PCP_DBG(debug, ...) \ + if(PREDICT_FALSE(cnat_pcp_debug_flag >= debug)) { \ + printf("%s:%s:%d - ", \ + __FILE__, __FUNCTION__, __LINE__);\ + printf(__VA_ARGS__);\ + printf("\n"); \ + } + +#define PCP_DUMP_PDATA \ + if(PREDICT_FALSE(cnat_pcp_debug_flag >= 100)) { \ + printf("%s:%s:%d - \n", \ + __FILE__, __FUNCTION__, __LINE__);\ + printf("src - ip = %X, proto = %d, port = %d i_vrf = %d, o_vrf = %d\n", \ + pcp_data.src_ip[3], pcp_data.proto, pcp_data.src_port, pcp_data.i_vrf, pcp_data.o_vrf); \ + printf(" third party ip = %X\n", pcp_data.third_party_ip[3]); \ + printf("map - ip = %X, port = %d \n", \ + pcp_data.ext_ip[3], pcp_data.ext_port);\ + printf("remote - ip = %X, port = %d \n", \ + pcp_data.peer_ip[3], pcp_data.peer_port); \ + printf("req life time = %d \n", pcp_data.req_lifetime); \ + printf("drop = %d \n", pcp_data.drop);\ + printf("udp_len = %d \n", pcp_data.udp_len); \ + printf("pm = %p \n", pcp_data.pm); \ + printf("cnat_proto = %X \n", pcp_data.cnat_proto); \ + printf("inst_id = %X \n", pcp_data.inst_id); \ + printf("======================================================\n"); \ + } + +#define PCP_DUMP_PACKET(ip, len) pcp_hex_dump(ip, len) + +#ifdef TOBE_PORTED +#define PCP_INCR(counter) pcp_counters.pcp_##counter++ ; +#else +#define PCP_INCR(counter) +#endif + +typedef struct pcp_debug_counters { + u64 pcp_input; + u64 pcp_output; + u64 pcp_service_nat44; + u64 pcp_service_dslite; + /* below all are drops */ + u64 pcp_drops; + u64 pcp_i2o_key_inuse; + u64 pcp_throttle_drops; + u64 pcp_udp_len; + u64 pcp_nrequest; + u64 pcp_min_udp_len; + u64 pcp_max_udp_len; + u64 pcp_mod4_len; + u64 pcp_invalid_3rd_len; + u64 pcp_invalid_option; + u64 pcp_version; + u64 pcp_invalid_opcode; + u64 pcp_invalid_client_ip; + u64 pcp_invalid_proto; + u64 pcp_invalid_port; + u64 pcp_invalid_vrfmap; + u64 pcp_invalid_ext_addr; + u64 pcp_out_addr_inuse; + u64 pcp_exact_match; + u64 pcp_exact_entry_created; + u64 pcp_exact_db_alloc_failed; + u64 pcp_udb_mismatch; + u64 pcp_noexact_db_allocated; + u64 pcp_static_entry_present; + u64 pcp_entry_deleted; + u64 pcp_3rd_party_option; + + /* map counters */ + u64 pcp_map_input; + u64 pcp_map_min_len; + u64 pcp_map_max_len; + u64 pcp_map_invalid_option; + u64 pcp_map_invalid_option_len; + u64 pcp_map_pref_fail_option; + u64 pcp_map_invalid_delete_req; + u64 pcp_map_delete_req; + u64 pcp_map_create_req; + u64 pcp_map_refresh; + + /* peer counters */ + u64 pcp_peer_input; + u64 pcp_peer_invalid_len; + u64 pcp_peer_delete_req; + u64 pcp_peer_create_req; + u64 pcp_peer_addr_mistmatch; + u64 pcp_peer_refresh; + +} pcp_debug_counters_t; + +typedef struct { + u16 msg_id; + u8 rc; + u8 pad[5]; + + /* better to have a group structures rather than individual + variables, any change in counters is will automatically + reflect here */ + pcp_debug_counters_t counters; +} pcp_show_counters_resp_t ; + + + +/* PCP opcodes */ +typedef enum pcp_opcode { + PCP_OPCODE_MAP = 1, + PCP_OPCODE_PEER = 2 +}pcp_opcode_t; + + +/* PCP opcodes */ +typedef enum pcp_options { + PCP_OPTION_3RD_PARTY = 1, + PCP_OPTION_PREF_FAIL = 2, + PCP_OPTION_FILTER = 3 +} pcp_options_t; + +/* PCP Result codes */ +typedef enum pcp_result_codes { + PCP_SUCCESS = 0, + PCP_ERR_UNSUPP_VERSION = 1, + PCP_ERR_NOT_AUTHORIZED = 2, + PCP_ERR_MALFORMED_REQUEST = 3, + PCP_ERR_UNSUPP_OPCODE = 4, + PCP_ERR_UNSUPP_OPTION = 5, + PCP_ERR_MALFORMED_OPTION = 6, + PCP_ERR_NETWORK_FAILURE = 7, + PCP_ERR_NO_RESOURCES = 8, + PCP_ERR_UNSUPP_PROTOCOL = 9, + PCP_ERR_USER_EX_QUOTA = 10, + PCP_ERR_CANNOT_PROVIDE_EXTERNAL = 11, + PCP_ERR_ADDRESS_MISMATCH = 12, + PCP_ERR_EXCESSIVE_REMOTE_PEERS = 13 +} pcp_result_codes_t; + +#define PCP_DISABLED 0 +#define PCP_ENABLED 1 + +#define PCP_DROP 1 + +#define PCP_STATIC_LIFETIME 0xFFFFFFFF +#define PCP_MAX_LIFETIME 0x00015180 /* 24 hours = 86400 seconds*/ + +#define PCP_VERSION_SUPPORTED 1 + +#define PCP_NO_PREF_FAIL_OPTION 0 +#define PCP_PREF_FAIL_OPTION 1 + +#define CNAT_DEF_PCP_PORT 5351 + +#define PCP_REQ_RESP_BIT 0x80 +#define PCP_RESPONSE(r_opcode) (r_opcode & PCP_REQ_RESP_BIT) +#define PCP_REQUEST(r_opcode) !(PCP_RESPONSE(r_opcode)) + +#define PCP_REQ_OPCODE(r_opcode) (r_opcode & 0x7F) + +/* 24 bytes */ +#define PCP_COMMON_HDR_LEN sizeof(pcp_request_t) + +/* 8 bytes */ +#define UDP_HDR_LEN sizeof(udp_hdr_type_t) + +#define PCP_PREF_FAIL_OPTION_SIZE \ + sizeof(pcp_prefer_fail_option_t) + +#define PCP_3RD_PARTY_OPTION_SIZE \ + sizeof(pcp_3rd_party_option_t) + +#define PCP_MIN_LEN PCP_COMMON_HDR_LEN + +/* 24+8=32 bytes */ +#define PCP_MIN_UDP_LEN (PCP_MIN_LEN + UDP_HDR_LEN) + +#define PCP_MAX_LEN 1024 + +/* 1024+8 = 1032 bytes */ +#define PCP_MAX_UDP_LEN (PCP_MAX_LEN + UDP_HDR_LEN) + +/* 24+ 24 = 48 bytes */ +#define PCP_MAP_OPCODE_MIN_LEN (PCP_COMMON_HDR_LEN + \ + sizeof( pcp_map_option_specific_data_t)) + +/* 24 + 44 = 68 bytes */ +#define PCP_PEER_OPCODE_MIN_LEN (PCP_COMMON_HDR_LEN + \ + sizeof( pcp_peer_option_specific_data_t)) + +/* 48 + 8 = 56 bytes */ +#define PCP_MAP_OPCODE_MIN_UDP_LEN (PCP_MAP_OPCODE_MIN_LEN + \ + UDP_HDR_LEN ) + +#define PCP_GET_MAP_OPTION_OFFSET(req) \ + ((u8*)req + PCP_MAP_OPCODE_MIN_LEN) + +#define PCP_GET_PEER_OPTION_OFFSET(req) \ + ((u8*)req + PCP_PEER_OPCODE_MIN_LEN) + + +#define PCP_REQ_TOTAL_LEN(udp) (udp->udp_length - \ + UDP_HDR_LEN) +/* 56 + 4 = 60 bytes */ +#define PCP_MAP_OPCODE_PREF_FAIL_OPTION_LEN \ + (PCP_MAP_OPCODE_MIN_UDP_LEN + \ + sizeof(pcp_prefer_fail_option_t)) + + +/* 68 + 8 = 76 bytes */ +#define PCP_PEER_OPCODE_MIN_UDP_LEN (PCP_PEER_OPCODE_MIN_LEN + \ + UDP_HDR_LEN) + +#define PCP_MUST_OPTION(option_code) (option_code & 0x80) + + + +/* 56 + 20 = 76*/ +#define PCP_DSLITE_MAP_OPCODE_MIN_UDP_LEN \ + ( PCP_MAP_OPCODE_MIN_UDP_LEN + \ + PCP_3RD_PARTY_OPTION_SIZE) + +/* 60 + 20 = 80 */ +#define PCP_DSLITE_MAP_OPCODE_MAX_UDP_LEN \ + ( PCP_MAP_OPCODE_PREF_FAIL_OPTION_LEN + \ + PCP_3RD_PARTY_OPTION_SIZE) + +/* 76 + 20 = 96 */ +#define PCP_DSLITE_PEER_OPCODE_MIN_UDP_LEN \ + ( PCP_PEER_OPCODE_MIN_UDP_LEN + \ + PCP_3RD_PARTY_OPTION_SIZE) + + +#define PCP_SET_CNAT_PROTO(proto) \ + pcp_data.cnat_proto = (proto == TCP_PROT) ? CNAT_TCP: \ + (proto == UDP_PROT)? CNAT_UDP : CNAT_ICMP; + +#define PCP_SET_REQ_LIFETIME() \ + if(pcp_data.db->flags & CNAT_DB_FLAG_STATIC_PORT) { \ + pcp_data.db->proto_data.seq_pcp.pcp_lifetime = \ + PCP_STATIC_LIFETIME; \ + pcp_data.req_lifetime = PCP_STATIC_LIFETIME; \ + } else { \ + pcp_data.db->proto_data.seq_pcp.pcp_lifetime = \ + pcp_data.req_lifetime + cnat_current_time ; \ + } + + +/* per second not more than PCP_THROTTLE_LIMIT + * delete requests will be handled. + * this excludes , specific entries, in which + * only one entry needs to be deleted + */ +#define PCP_THROTTLE_LIMIT 2 + +typedef struct pcp_request { + u8 ver; + u8 r_opcode; + u16 reserved; + u32 req_lifetime; + u32 ip[4]; /* ipv4 will be represented + by the ipv4 mapped ipv6 */ +} pcp_request_t; + +typedef struct pcp_response { + u8 ver; + u8 r_opcode; + u8 reserved; + u8 result_code; + u32 lifetime; + u32 epochtime; + u32 reserved1[3]; +} pcp_response_t; + + +typedef struct pcp_options_hdr { + u8 code; + u8 reserved; + u16 len; + u8 data[0]; +} pcp_options_hdr_t; + + +/* same for both request and response */ +typedef struct pcp_map_option_specific_data { + u8 protocol; + u8 reserved[3]; + u16 int_port; + u16 ext_port; + u32 ext_ip[4]; /* ipv4 will be represnted + by the ipv4 mapped ipv6 */ +} pcp_map_option_specific_data_t; + +/* same for both request and response */ +typedef struct pcp_peer_option_specific_data { + u8 protocol; + u8 reserved[3]; + u16 int_port; + u16 ext_port; + u32 ext_ip[4]; /* ipv4 will be represented + by the ipv4 mapped ipv6 */ + u16 peer_port; + u16 reserved1; + u32 peer_ip[4]; +} pcp_peer_option_specific_data_t; + +typedef struct pcp_prefer_fail_option { + u8 option; + u8 reserved; + u16 len; +} pcp_prefer_fail_option_t; + + +typedef struct pcp_3rd_party_option{ + u8 option; + u8 reserved; + u16 len; + u32 ip[4]; +} pcp_3rd_party_option_t; + +/* structure used as pipeline data */ + +typedef struct pcp_pipeline_data { + + union { + + u8 *p; + ipv4_header *ip ; + ipv6_header_t *ipv6 ; + + } l3addr; + + udp_hdr_type_t *udp; + pcp_request_t *req; + pcp_response_t *resp; + pcp_opcode_t opcode; + u32 src_ip[4]; + u16 src_port; + u8 proto; + u16 i_vrf; + u16 o_vrf; + u32 ext_ip[4]; + u16 ext_port; + u32 third_party_ip[4]; + + /* valid for peer opcode */ + u32 peer_ip[4]; + u32 peer_port; + u32 req_lifetime; + u32 udp_len; + pcp_options_t pref_fail; + pcp_options_t third_party; + u8 *option_spec; + pcp_result_codes_t ret_code; + cnat_portmap_v2_t *pm; + cnat_main_db_entry_t *db; + cnat_vrfmap_t *vrfmap; + dslite_table_entry_t *inst_ptr; + u16 inst_id; + u32 flags; + u16 cnat_proto; + + /* is packet needs to be dropped ? */ + u8 drop; + /* nat44, dslite, nat64 */ +#define PCP_SERVICE_NAT44 1 +#define PCP_SERVICE_DSLITE 2 +#define PCP_SERVICE_NAT64 3 + u8 service_type; + +#define PCP_REQ_ENTRY_PRESENT 1 +#define PCP_REQ_EXT_MAP_PRESENT 1 + u8 state; +} pcp_pipeline_data_t; + +#endif /* __CNAT_PCP_sERVER_H__ */ diff --git a/plugins/vcgn-plugin/vcgn/cnat_ports.c b/plugins/vcgn-plugin/vcgn/cnat_ports.c new file mode 100644 index 00000000..943fb3ed --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_ports.c @@ -0,0 +1,1113 @@ +/* + *------------------------------------------------------------------ + * cnat_ports.c - port allocator + * + * Copyright (c) 2008-2014 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ +#include <vlib/vlib.h> +#include <vnet/vnet.h> +#include <vppinfra/vec.h> +#include <vppinfra/hash.h> +#include <vppinfra/pool.h> +#include <vppinfra/clib.h> +#include <vppinfra/bitmap.h> + +#include "cnat_db.h" +#include "cnat_config.h" +#include "cnat_global.h" +#include "cnat_logging.h" +#include "spp_timers.h" +#include "platform_common.h" +#include "cgn_bitmap.h" +#include "spp_platform_trace_log.h" +#include "cnat_ports.h" + +#if 1 /* TOBE_PORTED */ +/* Following is defined elsewhere. */ +#define msg_spp_err(s) \ +do { \ + fprintf(stderr,(i8 *)s); \ + fputs("\n", stderr); \ +} while(0); +#endif + + +#define PM_90_PERCENT_USE 58980 +/* + * instance number provisioned from HW + */ +u8 my_instance_number = 0; + +typedef struct { + u32 cached_next_index; + /* $$$$ add data here */ + + /* convenience variables */ + vlib_main_t * vlib_main; + vnet_main_t * vnet_main; +} cnat_ports_main_t; + +cnat_ports_main_t cnat_ports_main; + +static u32 rseed_port; /* random number generator seed */ + +void +cnat_db_dump_portmap_for_vrf (u32 vrfmap_index) +{ + u32 i, pm_len; + cnat_vrfmap_t *my_vrfmap = cnat_map_by_vrf + vrfmap_index; + cnat_portmap_v2_t *pm, *my_pm __attribute__((unused)); + + pm = my_vrfmap->portmap_list; + pm_len = vec_len(pm); + + for (i = 0; i < pm_len; i++) { + my_pm = pm + i; + + PLATFORM_DEBUG_PRINT("pm %d: IPv4 Addr 0x%x - in use %d private_ip_users_count %d\n", + i, my_pm->ipv4_address, my_pm->inuse, + my_pm->private_ip_users_count); + + PLATFORM_DEBUG_PRINT("pm %d: IPv4 Addr 0x%x - in use %d " + "private_ip_users_count %d\n", + i, my_pm->ipv4_address, my_pm->inuse, + my_pm->private_ip_users_count); + } +} + +void +cnat_db_dump_portmaps () +{ + u32 i, vrfmap_index; + + for (i = 0; i < CNAT_MAX_VRFMAP_ENTRIES; i++) { + vrfmap_index = vrf_map_array[i]; + + if (vrfmap_index == VRF_MAP_ENTRY_EMPTY) { + continue; + } + + PLATFORM_DEBUG_PRINT("\n\nDumping the port map for uidb_index %d\n", i); + cnat_db_dump_portmap_for_vrf(vrfmap_index); + } +} + +#ifndef NO_BULK_LOGGING +static int check_if_stat_alloc_ok_for_bulk(cnat_portmap_v2_t *pm, + u16 i_port, bulk_alloc_size_t bulk_size, + u16 static_port_range) +{ + uword bit_test_result; + if(BULK_ALLOC_SIZE_NONE == bulk_size) return 1; /* No issues */ + + if(i_port < static_port_range) return 1; /* we don't want bulk */ + + i_port = (i_port/bulk_size) * bulk_size; + bit_test_result = cgn_clib_bitmap_check_if_all(pm->bm, i_port, bulk_size); + return(bit_test_result); +} +#else /* dummy */ +inline static int check_if_stat_alloc_ok_for_bulk(cnat_portmap_v2_t *pm, + u16 i_port, bulk_alloc_size_t bulk_size, + u16 static_port_range) +{ + return 1; +} +#endif /* NO_BULK_LOGGING */ +/* + * cnat_port_alloc_static_v2 + * public ipv4 address/port allocator for Static Port commands + * tries to allocate same outside port as inside port + */ +cnat_errno_t +cnat_static_port_alloc_v2 ( + cnat_portmap_v2_t *pm, + port_alloc_t atype, + port_pair_t pair_type, + u32 i_ipv4_address, + u16 i_port, + u32 *index, + u32 *o_ipv4_address, + u16 *o_port, + u16 static_port_range +#ifndef NO_BULK_LOGGING + , bulk_alloc_size_t bulk_size, + int *nfv9_log_req +#endif + , u16 ip_n_to_1 + ) +{ + u32 i, hash_value, my_index, found, max_attempts; + u16 start_bit, new_port; + cnat_portmap_v2_t *my_pm = 0; + u32 pm_len = vec_len(pm); + uword bit_test_result; + +#ifndef NO_BULK_LOGGING + *nfv9_log_req = BULK_ALLOC_NOT_ATTEMPTED; +#endif + + if (PREDICT_FALSE(pm_len == 0)) { + return (CNAT_NO_POOL_ANY); + } + + switch (atype) { + + case PORT_ALLOC_ANY: + + found = 0; + + /* + * Try to hash the IPv4 address to get an index value to select the pm + */ + hash_value = (i_ipv4_address & 0xffff) ^ + ((i_ipv4_address > 16) & 0xffff); + + /* + * If pm_len <= 256, compact the hash to 8 bits + */ + if (PREDICT_TRUE(pm_len <= 256)) { + hash_value = (hash_value & 0xff) ^ ((hash_value > 8) & 0xff); + } + + /* + * Ensure that the hash value is in the range 0 .. (pm_len-1) + */ + my_index = hash_value % pm_len; + + for (i = 0; i < PORT_PROBE_LIMIT; i++) { + my_pm = pm + my_index; + if(PREDICT_TRUE(ip_n_to_1)) { + if(PREDICT_TRUE(my_pm->private_ip_users_count < ip_n_to_1)) { + /* + * Try to find a PM with atlest 33% free and my_port free + */ + if (PREDICT_TRUE((my_pm->inuse < ((BITS_PER_INST*2)/3)) && + clib_bitmap_get_no_check(my_pm->bm, + i_port) == 1) +#ifndef NO_BULK_LOGGING + && check_if_stat_alloc_ok_for_bulk(my_pm, i_port, + bulk_size, + static_port_range) +#endif + ) { + found = 1; + break; + } + } + + } else { + /* + * Try to find a PM with atlest 33% free and my_port free + */ + if (PREDICT_TRUE((my_pm->inuse < ((BITS_PER_INST*2)/3)) && + clib_bitmap_get_no_check(my_pm->bm, + i_port) == 1) +#ifndef NO_BULK_LOGGING + && check_if_stat_alloc_ok_for_bulk(my_pm, i_port, + bulk_size, + static_port_range) +#endif + ) { + found = 1; + break; + } + } + my_index = (my_index + 1) % pm_len; + } + + /* + * If not found do it the hard way . + * "hard" way, best-fit. + */ + if (!found) { + u32 min_inuse_any, min_inuse_myport; + u32 min_index_any, min_index_myport; + + min_inuse_any = min_inuse_myport = PORTS_PER_ADDR + 1; + min_index_any = min_index_myport = ~0; + for (i = 0; i < pm_len; i++) { + my_pm = pm + i; + if(PREDICT_TRUE(ip_n_to_1)) { + if(PREDICT_TRUE(my_pm->private_ip_users_count < ip_n_to_1)) { + if (PREDICT_FALSE(my_pm->inuse < min_inuse_any)) { + min_inuse_any = my_pm->inuse; + min_index_any = my_pm - pm; + } + if (PREDICT_FALSE(my_pm->inuse < min_inuse_myport)) { + if (PREDICT_TRUE(clib_bitmap_get_no_check( + my_pm->bm,i_port) == 1) +#ifndef NO_BULK_LOGGING + && check_if_stat_alloc_ok_for_bulk(my_pm, + i_port,bulk_size,static_port_range) +#endif + ) { + min_inuse_myport = my_pm->inuse; + min_index_myport = my_pm - pm; + } + } + + } + + } else { + if (PREDICT_FALSE(my_pm->inuse < min_inuse_any)) { + min_inuse_any = my_pm->inuse; + min_index_any = my_pm - pm; + } + if (PREDICT_FALSE(my_pm->inuse < min_inuse_myport)) { + if (PREDICT_TRUE(clib_bitmap_get_no_check( + my_pm->bm, i_port) == 1) +#ifndef NO_BULK_LOGGING + && check_if_stat_alloc_ok_for_bulk(my_pm, i_port, + bulk_size, static_port_range) +#endif + ) { + min_inuse_myport = my_pm->inuse; + min_index_myport = my_pm - pm; + } + } + } + } + + /* + * Check if we have an exactly matching PM that has + * myport free. If so use it. If no such PM is + * available, use any PM + */ + if (PREDICT_TRUE(min_inuse_myport < PORTS_PER_ADDR)) { + my_pm = pm + min_index_myport; + my_index = min_index_myport; + found = 1; + } else if (PREDICT_TRUE(min_inuse_any < PORTS_PER_ADDR)) { + my_pm = pm + min_index_any; + my_index = min_index_any; + found = 1; + } + } + + if (!found) { + return (CNAT_NO_PORT_ANY); + } + break; + + case PORT_ALLOC_DIRECTED: + my_index = *index; + if (PREDICT_FALSE(my_index > pm_len)) { + return (CNAT_INV_PORT_DIRECT); + } + my_pm = pm + my_index; + break; + + default: + return (CNAT_ERR_PARSER); + } + + /* Allocate a matching port if possible */ + start_bit = i_port; + found = 0; + max_attempts = BITS_PER_INST; +#ifndef NO_BULK_LOGGING + if((BULK_ALLOC_SIZE_NONE != bulk_size) && + (i_port >= static_port_range)) { + start_bit = (start_bit/bulk_size) * bulk_size; + max_attempts = BITS_PER_INST/bulk_size; + } +#endif /* NO_BULK_LOGGING */ + + for (i = 0; i < max_attempts; i++) { +#ifndef NO_BULK_LOGGING + if((BULK_ALLOC_SIZE_NONE != bulk_size) && + (i_port >= static_port_range)) { + bit_test_result = cgn_clib_bitmap_check_if_all(my_pm->bm, + start_bit, bulk_size); + } + else +#endif /* #ifndef NO_BULK_LOGGING */ + bit_test_result = clib_bitmap_get_no_check(my_pm->bm, start_bit); + + if (PREDICT_TRUE(bit_test_result)) { +#ifndef NO_BULK_LOGGING + if((BULK_ALLOC_SIZE_NONE != bulk_size) && + (i_port >= static_port_range)) { + *nfv9_log_req = start_bit; + if(i==0) new_port = i_port; /* First go */ + else { + new_port = bit2port(start_bit); + if (pair_type == PORT_S_ODD && (new_port & 0x1) == 0) + new_port++; + } + found = 1; + break; + } + else { +#endif /* NO_BULK_LOGGING */ + new_port = bit2port(start_bit); + if (pair_type == PORT_S_ODD) { + if ((new_port & 0x1) == 1) { + found = 1; + break; + } + } else if (pair_type == PORT_S_EVEN) { + if ((new_port & 0x1) == 0) { + found = 1; + break; + } + } else { + found = 1; + break; + } +#ifndef NO_BULK_LOGGING + } +#endif + } +#ifndef NO_BULK_LOGGING + if((BULK_ALLOC_SIZE_NONE != bulk_size) && + (i_port >= static_port_range)) + start_bit = (start_bit + bulk_size) % BITS_PER_INST; + else { +#endif /* NO_BULK_LOGGING */ + start_bit = (start_bit + 1) % BITS_PER_INST; + if(PREDICT_FALSE(start_bit == 0)) { + start_bit = 1; /* Port 0 is invalid, so start from 1 */ + } +#ifndef NO_BULK_LOGGING + } +#endif + } /* End of for loop */ + + if (!found) { + /* Port allocation failure */ + if (atype == PORT_ALLOC_DIRECTED) { + return (CNAT_NOT_FOUND_DIRECT); + } else { + return (CNAT_NOT_FOUND_ANY); + } + } + + /* Accounting */ + cgn_clib_bitmap_clear_no_check(my_pm->bm, new_port); + (my_pm->inuse)++; + + *index = my_pm - pm; + *o_ipv4_address = my_pm->ipv4_address; + + *o_port = new_port; + + return (CNAT_SUCCESS); +} + +/* + * Try to allocate a portmap structure based on atype field + */ +cnat_portmap_v2_t * +cnat_dynamic_addr_alloc_from_pm ( + cnat_portmap_v2_t *pm, + port_alloc_t atype, + u32 *index, + cnat_errno_t *err, + u16 ip_n_to_1, + u32 *rseed_ip) +{ + u32 i, pm_len; + int my_index; + int min_inuse, min_index; + + cnat_portmap_v2_t *my_pm = 0; + *err = CNAT_NO_POOL_ANY; + + pm_len = vec_len(pm); + + switch(atype) { + case PORT_ALLOC_ANY: + if (PREDICT_FALSE(pm_len == 0)) { + my_pm = 0; + *err = CNAT_NO_POOL_ANY; + goto done; + } + + /* "Easy" way, first address with at least 200 free ports */ + for (i = 0; i < PORT_PROBE_LIMIT; i++) { + *rseed_ip = randq1(*rseed_ip); + my_index = (*rseed_ip) % pm_len; + my_pm = pm + my_index; + if (PREDICT_FALSE(ip_n_to_1)) { + if(PREDICT_TRUE(ip_n_to_1 == 1)) { + if (PREDICT_FALSE(0 == my_pm->inuse)) { + goto done; + } + } else { + if(PREDICT_TRUE(my_pm->private_ip_users_count < ip_n_to_1)) { + if (PREDICT_FALSE(my_pm->inuse < ((BITS_PER_INST*2)/3))) { + goto done; + } + } + } + } else { + if (PREDICT_FALSE(my_pm->inuse < ((BITS_PER_INST*2)/3))) { + goto done; + } + } + } + + /* "hard" way, best-fit. $$$$ Throttle complaint */ + min_inuse = PORTS_PER_ADDR + 1; + min_index = ~0; + for (i = 0; i < pm_len; i++) { + my_pm = pm + i; + if (PREDICT_FALSE(ip_n_to_1)) { + if(PREDICT_TRUE(ip_n_to_1 == 1)) { + if (PREDICT_FALSE(!my_pm->inuse)) { + min_inuse = my_pm->inuse; + min_index = my_pm - pm; + } + } else { + if(PREDICT_TRUE(my_pm->private_ip_users_count < ip_n_to_1)) { + if (PREDICT_TRUE(my_pm->inuse < min_inuse)) { + min_inuse = my_pm->inuse; + min_index = my_pm - pm; + } + + } + } + + } else { + if (PREDICT_TRUE(my_pm->inuse < min_inuse)) { + min_inuse = my_pm->inuse; + min_index = my_pm - pm; + } + } + } + + if (PREDICT_TRUE(min_inuse < PORTS_PER_ADDR)) { + my_pm = pm + min_index; + my_index = min_index; + goto done; + } + + /* Completely out of ports */ +#ifdef DEBUG_PRINTF_ENABLED + PLATFORM_DEBUG_PRINT("%s out of ports\n", __FUNCTION__); +#endif + + my_pm = 0; + *err = CNAT_NO_PORT_ANY; + break; + + + case PORT_ALLOC_DIRECTED: + //ASSERT(*index < pm_len); + if (PREDICT_FALSE(*index > pm_len)) { + my_pm = 0; + *err = CNAT_INV_PORT_DIRECT; + goto done; + } + my_pm = pm + *index; + my_index = *index; + break; + + default: + msg_spp_err("bad allocation type in cnat_port_alloc"); + my_pm = 0; + *err = CNAT_ERR_PARSER; + break; + } + + done: + if (PREDICT_FALSE(my_pm == NULL)) { + return (my_pm); + } + + if (PREDICT_FALSE(my_pm->inuse >= BITS_PER_INST)) { + my_pm = 0; + if (atype == PORT_ALLOC_DIRECTED) { + *err = CNAT_BAD_INUSE_DIRECT; + } else { + *err = CNAT_BAD_INUSE_ANY; + } + } + + return (my_pm); +} + + +/* + * cnat_port_alloc_v2 + * public ipv4 address/port allocator for dynamic ports + * + * 200K users / 20M translations means vec_len(cnat_portmap) will be + * around 300. + * + */ +cnat_errno_t +cnat_dynamic_port_alloc_v2 ( + cnat_portmap_v2_t *pm, + port_alloc_t atype, + port_pair_t pair_type, + u32 *index, + u32 *o_ipv4_address, + u16 *o_port, + u16 static_port_range +#ifndef NO_BULK_LOGGING + , bulk_alloc_size_t bulk_size, + int *nfv9_log_req +#endif + , u16 ip_n_to_1, + u32 *rseed_ip + ) +{ + int i; + cnat_errno_t my_err = CNAT_NO_POOL_ANY; + cnat_portmap_v2_t *my_pm = 0; + u16 start_bit; + u16 new_port; + uword bit_test_result; + uword max_trys_to_find_port; + + ASSERT(index); + ASSERT(o_ipv4_address); + ASSERT(o_port); + + my_pm = cnat_dynamic_addr_alloc_from_pm(pm, atype, index, &my_err, ip_n_to_1, + rseed_ip); + + if (PREDICT_FALSE(my_pm == NULL)) { + return (my_err); + } + if(PREDICT_FALSE(my_pm->dyn_full == 1)) { + if (atype == PORT_ALLOC_DIRECTED) { + return (CNAT_NOT_FOUND_DIRECT); + } else { + return (CNAT_NOT_FOUND_ANY); + } + } + +#if DEBUG > 1 + PLATFORM_DEBUG_PRINT("ALLOC_PORT_V2: My_Instance_Number %d: IP addr 0x%x, Inuse %d\n", + my_instance_number, my_pm->ipv4_address, my_pm->inuse); +#endif + + rseed_port = randq1(rseed_port); + + /* + * Exclude the static port range for allocating dynamic ports + */ + start_bit = (rseed_port) % (BITS_PER_INST - static_port_range); + start_bit = start_bit + static_port_range; + +#ifndef NO_BULK_LOGGING + *nfv9_log_req = BULK_ALLOC_NOT_ATTEMPTED; + if(BULK_ALLOC_SIZE_NONE != bulk_size) + { + /* We need the start port of the range to be alined on integer multiple + * of bulk_size */ + max_trys_to_find_port = BITS_PER_INST/bulk_size; + start_bit= ((start_bit + bulk_size -1)/bulk_size) * bulk_size; + } + else +#endif /* #ifndef NO_BULK_LOGGING */ + max_trys_to_find_port = BITS_PER_INST; + + /* Allocate a random port / port-pair */ + for (i = 0; i < max_trys_to_find_port; i++) { + + /* start_bit is only a u16.. so it can rollover and become zero */ + if (PREDICT_FALSE( /* (start_bit >= BITS_PER_INST) || FIXME u16 cannot be >= 65536 */ + (start_bit < static_port_range))) { + start_bit = static_port_range; +#ifndef NO_BULK_LOGGING + if(BULK_ALLOC_SIZE_NONE != bulk_size) { + start_bit= ((start_bit + bulk_size -1)/bulk_size) * bulk_size; + } +#endif /* #ifndef NO_BULK_LOGGING */ + } + /* Scan forward from random position */ +#ifndef NO_BULK_LOGGING + if(BULK_ALLOC_SIZE_NONE != bulk_size) { + bit_test_result = cgn_clib_bitmap_check_if_all(my_pm->bm, + start_bit, bulk_size); + } + else +#endif /* #ifndef NO_BULK_LOGGING */ + bit_test_result = clib_bitmap_get_no_check(my_pm->bm, start_bit); + + if (PREDICT_TRUE(bit_test_result)) { + new_port = bit2port(start_bit); +#ifndef NO_BULK_LOGGING + if(BULK_ALLOC_SIZE_NONE != bulk_size) + *nfv9_log_req = new_port; +#endif + if ((pair_type == PORT_S_ODD) && + (!(new_port & 0x1))) { +#ifndef NO_BULK_LOGGING + if(BULK_ALLOC_SIZE_NONE != bulk_size) { + start_bit++; /* Just use the next one in the bulk range */ + new_port++; + goto found2; + } +#endif /* #ifndef NO_BULK_LOGGING */ + goto notfound; + } else if ((pair_type == PORT_S_EVEN) && + (new_port & 0x1)) { + goto notfound; + } + + /* OK we got one or two suitable ports */ + goto found2; + } + + notfound: +#ifndef NO_BULK_LOGGING + if(BULK_ALLOC_SIZE_NONE != bulk_size) + start_bit += bulk_size; + else +#endif /* #ifndef NO_BULK_LOGGING */ + start_bit++; + + } /* end of for loop */ + + /* Completely out of ports */ + + /* Port allocation failure */ + /* set dyn_full flag. This would be used to verify + * for further dyn session before searching for port + */ + if (atype == PORT_ALLOC_DIRECTED) { + my_pm->dyn_full = 1; + return (CNAT_NOT_FOUND_DIRECT); + } else { + my_pm->dyn_full = 1; + return (CNAT_NOT_FOUND_ANY); + } + + + found2: + + /* Accounting */ + cgn_clib_bitmap_clear_no_check (my_pm->bm, start_bit); + (my_pm->inuse)++; + + *index = my_pm - pm; + *o_ipv4_address = my_pm->ipv4_address; + + *o_port = new_port; + return (CNAT_SUCCESS); +} + +#ifdef TOBE_PORTED +/* + * cnat_alloc_port_from_pm + * Given a portmap structure find port/port_pair that are free + * + * The assumption in this function is that bit in bm corresponds + * to a port number. This is TRUE and hence there is no call + * to the function bit2port here, though it is done in other + * places in this file. + * + */ +static u32 +cnat_alloc_port_from_pm ( + u32 start_port, + u32 end_port, + cnat_portmap_v2_t *my_pm, + port_pair_t pair_type +#ifndef NO_BULK_LOGGING + , bulk_alloc_size_t bulk_size, + int *nfv9_log_req +#endif /* #ifnded NO_BULK_ALLOCATION */ + ) +{ + u32 i; + u32 start_bit; + u32 total_ports = end_port - start_port + 1; + uword bit_test_result; + uword max_trys_to_find_port; + + rseed_port = randq1(rseed_port); + + start_bit = rseed_port % total_ports; + start_bit = start_bit + start_port; +#ifndef NO_BULK_LOGGING + *nfv9_log_req = BULK_ALLOC_NOT_ATTEMPTED; + if(BULK_ALLOC_SIZE_NONE != bulk_size) + { + /* We need the start port of the range to be alined on integer multiple + * of bulk_size */ + max_trys_to_find_port = total_ports/bulk_size; + start_bit= ((start_bit + bulk_size -1)/bulk_size) * bulk_size; + } + else +#endif /* #ifndef NO_BULK_LOGGING */ + max_trys_to_find_port = total_ports; + + /* Allocate a random port / port-pair */ + for (i = 0; i < max_trys_to_find_port; i++) { + /* start_bit is only a u16.. so it can rollover and become zero */ + if (PREDICT_FALSE((start_bit >= end_port) || + (start_bit < start_port))) { + start_bit = start_port; +#ifndef NO_BULK_LOGGING + if(BULK_ALLOC_SIZE_NONE != bulk_size) { + start_bit= ((start_bit + bulk_size -1)/bulk_size) * bulk_size; + } +#endif /* #ifndef NO_BULK_LOGGING */ + } + + /* Scan forward from random position */ +#ifndef NO_BULK_LOGGING + if(BULK_ALLOC_SIZE_NONE != bulk_size) { + bit_test_result = cgn_clib_bitmap_check_if_all(my_pm->bm, + start_bit, bulk_size); + } + else +#endif /* #ifndef NO_BULK_LOGGING */ + bit_test_result = clib_bitmap_get_no_check(my_pm->bm, start_bit); + + if (PREDICT_TRUE(bit_test_result)) { +#ifndef NO_BULK_LOGGING + if(BULK_ALLOC_SIZE_NONE != bulk_size) { + /* Got the entire bulk range */ + *nfv9_log_req = bit2port(start_bit); + return start_bit; + } else { +#endif /* #ifndef NO_BULK_LOGGING */ + /* + * For PORT_PAIR, first port has to be Even + * subsequent port <= end_port + * subsequent port should be unallocated + */ + if ((start_bit & 0x1) || + ((start_bit + 1) > end_port) || + (clib_bitmap_get_no_check(my_pm->bm, + (start_bit + 1)) == 0)) { + goto notfound; + } + return (start_bit); +#ifndef NO_BULK_LOGGING + } +#endif /* #ifndef NO_BULK_LOGGING */ + } /* if( free port found ) */ + +notfound: +#ifndef NO_BULK_LOGGING + if(BULK_ALLOC_SIZE_NONE != bulk_size) { + start_bit += bulk_size; + } else +#endif /* #ifndef NO_BULK_LOGGING */ + start_bit++; + + } + return (BITS_PER_INST); +} + +/* + * cnat_dynamic_port_alloc_rtsp + * public ipv4 address/port allocator for dynamic ports + * + * 200K users / 20M translations means vec_len(cnat_portmap) will be + * around 300. + * + */ + +cnat_errno_t +cnat_dynamic_port_alloc_rtsp ( + cnat_portmap_v2_t *pm, + port_alloc_t atype, + port_pair_t pair_type, + u16 start_range, + u16 end_range, + u32 *index, + u32 *o_ipv4_address, + u16 *o_port +#ifndef NO_BULK_LOGGING + , bulk_alloc_size_t bulk_size, + int *nfv9_log_req +#endif + , u32 *rseed_ip + ) +{ + + u32 current_timestamp; + cnat_errno_t my_err = CNAT_NO_POOL_ANY; + cnat_portmap_v2_t *my_pm = 0; + u32 alloc_bit; + + ASSERT(index); + ASSERT(o_ipv4_address); + ASSERT(o_port); + + my_pm = cnat_dynamic_addr_alloc_from_pm(pm, atype, index, &my_err, 0,rseed_ip); + + if (PREDICT_FALSE(my_pm == NULL)) { + return (my_err); + } + +#if DEBUG > 1 + PLATFORM_DEBUG_PRINT("ALLOC_PORT_V2: My_Instance_Number %d: IP addr 0x%x, Inuse %d\n", + my_instance_number, my_pm->ipv4_address, my_pm->inuse); +#endif + + alloc_bit = + cnat_alloc_port_from_pm(start_range, end_range, my_pm, pair_type +#ifndef NO_BULK_LOGGING + , bulk_size, nfv9_log_req +#endif /* #ifndef NO_BULK_LOGGING */ + ); + + if (alloc_bit < BITS_PER_INST) { + if (pair_type == PORT_PAIR) { + /* Accounting */ + cgn_clib_bitmap_clear_no_check (my_pm->bm, alloc_bit); + cgn_clib_bitmap_clear_no_check (my_pm->bm, alloc_bit+1); + (my_pm->inuse) += 2; + } else { + /* Accounting */ + cgn_clib_bitmap_clear_no_check (my_pm->bm, alloc_bit); + (my_pm->inuse)++; + } + + *index = my_pm - pm; + *o_ipv4_address = my_pm->ipv4_address; + + *o_port = bit2port(alloc_bit);; + + return (CNAT_SUCCESS); + } + + /* Completely out of ports */ + current_timestamp = spp_trace_log_get_unix_time_in_seconds(); + if (PREDICT_FALSE((current_timestamp - my_pm->last_sent_timestamp) > + 1000)) { + spp_printf(CNAT_NO_EXT_PORT_AVAILABLE, 0, NULL); + my_pm->last_sent_timestamp = current_timestamp; + } + + + /* Port allocation failure */ + if (atype == PORT_ALLOC_DIRECTED) { + return (CNAT_NOT_FOUND_DIRECT); + } else { + return (CNAT_NOT_FOUND_ANY); + } +} +#else +cnat_errno_t +cnat_dynamic_port_alloc_rtsp ( + cnat_portmap_v2_t *pm, + port_alloc_t atype, + port_pair_t pair_type, + u16 start_range, + u16 end_range, + u32 *index, + u32 *o_ipv4_address, + u16 *o_port +#ifndef NO_BULK_LOGGING + , bulk_alloc_size_t bulk_size, + int *nfv9_log_req +#endif + , u32 *rseed_ip + ) +{ + return (CNAT_NOT_FOUND_ANY); +} +#endif + + +/* + * cnat_mapped_static_port_alloc_v2 + * / + */ +cnat_errno_t +cnat_mapped_static_port_alloc_v2 ( + cnat_portmap_v2_t *pm, + port_alloc_t atype, + u32 *index, + u32 ipv4_address, + u16 port +#ifndef NO_BULK_LOGGING + , int *nfv9_log_req, + bulk_alloc_size_t bulk_size +#endif + , u16 ip_n_to_1 + ) +{ + int i; + u32 pm_len; + u16 bm_bit; + cnat_portmap_v2_t *my_pm = 0; + u32 my_index; + + ASSERT(index); + + /* + * Map the port to the bit in the pm bitmap structure. + * Note that we use ports from 1024..65535, so + * port number x corresponds to (x-1024) position in bitmap + */ + bm_bit = port2bit(port); + + pm_len = vec_len(pm); + + switch(atype) { + case PORT_ALLOC_ANY: + if (PREDICT_FALSE(pm_len == 0)) { + return (CNAT_NO_POOL_ANY); + } + + /* + * Find the pm that is allocated for this translated IP address + */ + my_index = pm_len; + + for (i = 0; i < pm_len; i++) { + my_pm = pm + i; + if (PREDICT_FALSE(my_pm->ipv4_address == ipv4_address)) { + my_index = i; + break; + } + } + + if ((PREDICT_FALSE(my_index >= pm_len)) || + ((PREDICT_FALSE(ip_n_to_1)) && (PREDICT_TRUE(my_pm->private_ip_users_count >= ip_n_to_1)))) { + return (CNAT_NO_POOL_ANY); + } + + break; + + case PORT_ALLOC_DIRECTED: + if (PREDICT_FALSE(*index > pm_len)) { + return (CNAT_INV_PORT_DIRECT); + } + + my_index = *index; + my_pm = pm + my_index; + if (PREDICT_FALSE(my_pm->ipv4_address != ipv4_address)) { + if (PREDICT_FALSE(global_debug_flag && CNAT_DEBUG_GLOBAL_ALL)) { + PLATFORM_DEBUG_PRINT("Delete all main db entry for that particular in ipv4 address\n"); + } + return (CNAT_INV_PORT_DIRECT); + } + + break; + + default: + msg_spp_err("bad allocation type in cnat_port_alloc"); + return (CNAT_ERR_PARSER); + } + + + if (PREDICT_FALSE(my_pm == NULL)) { + return (CNAT_NO_POOL_ANY); + } + + /* + * Check if the port is already allocated to some other mapping + */ + if (PREDICT_FALSE(clib_bitmap_get_no_check (my_pm->bm, bm_bit) == 0)) { + return (CNAT_NO_POOL_ANY); + } + +#if DEBUG > 1 + PLATFORM_DEBUG_PRINT("ALLOC_PORT_V2: My_Instance_Number %d: IP addr 0x%x, Inuse %d\n", + my_instance_number, my_pm->ipv4_address, my_pm->inuse); +#endif + + /* + * Indicate that the port is already allocated + */ + cgn_clib_bitmap_clear_no_check (my_pm->bm, bm_bit); + (my_pm->inuse)++; + + *index = my_index; + + return (CNAT_SUCCESS); +} + +void cnat_port_free_v2 ( + cnat_portmap_v2_t *pm, + int index, + port_pair_t pair_type, + u16 base_port, + u16 static_port_range) +{ + cnat_portmap_v2_t *my_pm; + uword bit; + + /* check for valid portmap */ + if (PREDICT_FALSE(index > vec_len(pm))) { + spp_printf(CNAT_INVALID_INDEX_TO_FREE_PORT, 0, 0); + return; + } + + my_pm = pm + index; + bit = port2bit(base_port); + +#if DEBUG > 0 + if(clib_bitmap_get_no_check(my_pm->bm, bit)) + ASSERT(clib_bitmap_get_no_check(my_pm->bm, bit) == 0); +#endif + + cgn_clib_bitmap_set_no_check(my_pm->bm, bit); + + my_pm->inuse -= 1; + if(base_port >= static_port_range) { + /* Clear the full flag. we can have a new dynamic session now */ + my_pm->dyn_full = 0; + } + + return; +} + +void cnat_portmap_dump_v2 (cnat_portmap_v2_t *pm, u16 print_limit) +{ + int i; + u32 inuse =0; + + ASSERT(pm); + + for (i = 0; i < BITS_PER_INST; i++) { + if (PREDICT_FALSE(clib_bitmap_get_no_check (pm->bm, i) == 0)) { + if (PREDICT_TRUE(inuse++ < print_limit)) + PLATFORM_DEBUG_PRINT(" %d", bit2port(i)); + } + } + if (PREDICT_FALSE(inuse >= print_limit)) { + PLATFORM_DEBUG_PRINT("%d printed, print limit is %d\n", + inuse, print_limit); + } + PLATFORM_DEBUG_PRINT("\n"); +} + + +/* + * cnat_ports_init + */ +clib_error_t *cnat_ports_init(vlib_main_t *vm) +{ + cnat_ports_main_t *mp = &cnat_ports_main; + + mp->vlib_main = vm; + mp->vnet_main = vnet_get_main(); + + /* suppress crypto-random port numbering */ +#ifdef SOON + if (spp_get_int_prop("no_crypto_random_ports") == 0) + crypto_random32(&seed); +#endif + + return 0; +} + +VLIB_INIT_FUNCTION(cnat_ports_init); + diff --git a/plugins/vcgn-plugin/vcgn/cnat_ports.h b/plugins/vcgn-plugin/vcgn/cnat_ports.h new file mode 100644 index 00000000..bc1fb0d2 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_ports.h @@ -0,0 +1,208 @@ +/* + *------------------------------------------------------------------ + * cnat_ports.h - port database definitions + * + * Copyright (c) 2007-2013 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ + +#ifndef __CNAT_PORTS_H__ +#define __CNAT_PORTS_H__ + +#include "platform_common.h" +#include "cnat_bulk_port_defs.h" + +#define PORTS_PER_ADDR 65536 + +#define CNAT_INSTS PLATFORM_CNAT_INSTS + +#define BITS_PER_INST (PORTS_PER_ADDR) + +/* + * Ensure that atleast few 4 bit ports are available for RTSP + * in case we want to map 4 digit inside ports to 4 digit outside ports + */ +#define MIN_STATIC_PORT_RANGE_FOR_RTSP (9900) + +extern u8 my_instance_number; + +/* + * Now it is a 1-to-1 mapping between bit and port values + */ +static inline u16 bit2port (u32 bit) +{ + return bit; +} + +static inline uword port2bit (u16 port) +{ + return port; +} + +/* + * Port bitmap structure + * THIS structure is not used to be REMOVED.... + */ + + +typedef struct { + u32 ipv4_address; /* native bit order */ + u16 vrf; + u16 pad; + u32 threshold_crossed; + uword bm[(BITS_PER_INST + BITS(uword)-1)/BITS(uword)]; +} cnat_portmap_t; + +//cnat_portmap_t *cnat_portmap; + + +typedef struct { + u32 inuse; + u32 delete_time; + u32 ipv4_address; /* native bit order */ + u32 last_sent_timestamp; + uword bm[(BITS_PER_INST + BITS(uword)-1)/BITS(uword)]; + u32 dyn_full; + u32 private_ip_users_count; /* number of private ip's(subscribers) to this + public ip */ +} cnat_portmap_v2_t; + + +typedef enum { + PORT_SINGLE=0, + PORT_PAIR=1, + PORT_S_EVEN=2, + PORT_S_ODD=3, +} port_pair_t; + +typedef enum { + PORT_TYPE_DYNAMIC=0, + PORT_TYPE_STATIC=1, + PORT_TYPE_RTSP=2, +} port_type_t; + + +typedef enum { + PORT_ALLOC_ANY=1, + PORT_ALLOC_DIRECTED=2, +} port_alloc_t; + +#define PORT_PROBE_LIMIT 20 + + +/* + * randq1 + * Linear congruential random number generator with + * extensively studied properties. See Numerical Recipes in C + * 2nd Ed. page 284. Known to behave according to the test vector + * supplied in the text, on X86 and Octeon. + */ +static inline u32 randq1 (u32 prev) +{ + return (1664525L*prev + 1013904223L); +} + +cnat_errno_t +cnat_static_port_alloc_v2( + cnat_portmap_v2_t *pm, + port_alloc_t atype, + port_pair_t pair_type, + u32 i_ipv4_address, + u16 i_port, + u32 *index, + u32 *o_ipv4_address, + u16 *o_port, + u16 static_port_range +#ifndef NO_BULK_LOGGING + , bulk_alloc_size_t bulk_size, + int *nfv9_log_req +#endif /* NO_BULK_LOGGING */ + , u16 ip_n_to_1 + ); + +cnat_errno_t +cnat_mapped_static_port_alloc_v2 ( + cnat_portmap_v2_t *pm, + port_alloc_t atype, + u32 *index, + u32 ipv4_address, + u16 port +#ifndef NO_BULK_LOGGING + , int *nfv9_log_req, + bulk_alloc_size_t bulk_size +#endif + , u16 ip_n_to_1 + ); + +cnat_errno_t +cnat_dynamic_port_alloc_v2( + cnat_portmap_v2_t *pm, + port_alloc_t atype, + port_pair_t pair_type, + u32 *index, + u32 *o_ipv4_address, + u16 *o_port, + u16 static_port_range +#ifndef NO_BULK_LOGGING + , bulk_alloc_size_t bulk_size, + int *nfv9_log_req +#endif + , u16 ip_n_to_1, + u32 *rseed_ip + ); + + +cnat_errno_t +cnat_dynamic_port_alloc_rtsp ( + cnat_portmap_v2_t *pm, + port_alloc_t atype, + port_pair_t pair_type, + u16 start_range, + u16 end_range, + u32 *index, + u32 *o_ipv4_address, + u16 *o_port +#ifndef NO_BULK_LOGGING + , bulk_alloc_size_t bulk_size, + int *nfv9_log_req +#endif + , u32 *rseed_ip + ); + +void cnat_port_free_v2( + cnat_portmap_v2_t *pm, + int index, + port_pair_t ptype, + u16 base_port, + u16 static_port_range); + +void cnat_portmap_dump_v2(cnat_portmap_v2_t *pm, + u16 print_limit); + + + +cnat_errno_t +nat64_static_port_alloc ( + cnat_portmap_v2_t *pm, + port_alloc_t atype, + port_pair_t pair_type, + u32 *i_ipv6_address, + u16 i_port, + u32 *index, + u32 *o_ipv4_address, + u16 *o_port); + + + +#endif /* __CNAT_PORTS_H__ */ diff --git a/plugins/vcgn-plugin/vcgn/cnat_show.c b/plugins/vcgn-plugin/vcgn/cnat_show.c new file mode 100644 index 00000000..68c52756 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_show.c @@ -0,0 +1,810 @@ +/* + *------------------------------------------------------------------ + * cnat_show.c - translation database definitions + * + * Copyright (c) 2007-2014 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ + +#include <vlib/vlib.h> +#include <vnet/vnet.h> +#include <vppinfra/vec.h> +#include <vppinfra/bitmap.h> +#include <vppinfra/hash.h> +#include <vppinfra/pool.h> +#include <vppinfra/clib.h> + +#include "cnat_db.h" +#include "cnat_config.h" +#include "cnat_global.h" +#include "cnat_logging.h" +#include "spp_ctx.h" +#include "spp_timers.h" +#include "platform_common.h" +#include "cnat_syslog.h" +#include "cnat_v4_pptp_alg.h" +#include "platform_common.h" + +#ifndef TOBE_PORTED +/* The following variable is in cnat_config_msg_handler.c which + * is to be ported later.. if required + */ +u32 total_address_pool_allocated = 0; +#endif + +#ifndef NO_BULK_LOGGING +#define CNAT_MY_VRFMAP_PRINT \ +PLATFORM_DEBUG_PRINT("i-uidx 0x%x o-uidx 0x%x i-vrfid 0x%x o-vrfid 0x%x\n" \ + "status %d del time 0x%x tcp mss 0x%x pm list 0x%x\n" \ + "bulk size %d\n" \ + "ip n:1 %d\n" \ + "NFV9 template index 0x%x\n" \ + "SYSLOG template index 0x%x\n" \ + "Netflow Session Logging %d \n" \ + "Syslog Session Logging %d \n" \ + "PCP Server 0x%x, Port %u \n", \ + my_vrfmap->i_vrf, my_vrfmap->o_vrf, my_vrfmap->i_vrf_id, \ + my_vrfmap->o_vrf_id, my_vrfmap->status, my_vrfmap->delete_time, \ + my_vrfmap->tcp_mss, my_vrfmap->portmap_list, \ + BULKSIZE_FROM_VRFMAP(my_vrfmap), \ + my_vrfmap->ip_n_to_1, \ + my_vrfmap->nfv9_logging_index, \ + my_vrfmap->syslog_logging_index,\ + my_vrfmap->nf_logging_policy, \ + my_vrfmap->syslog_logging_policy, \ + my_vrfmap->pcp_server_addr, \ + my_vrfmap->pcp_server_port); +#else +#define CNAT_MY_VRFMAP_PRINT \ +PLATFORM_DEBUG_PRINT("i-uidx 0x%x o-uidx 0x%x i-vrfid 0x%x o-vrfid 0x%x\n" \ + "status %d del time 0x%x tcp mss 0x%x pm list 0x%x\n" \ + "NFV9 template index 0x%x\n ip n:1 %d\n", \ + my_vrfmap->i_vrf, my_vrfmap->o_vrf, my_vrfmap->i_vrf_id, \ + my_vrfmap->o_vrf_id, my_vrfmap->status, my_vrfmap->delete_time, \ + my_vrfmap->tcp_mss, my_vrfmap->portmap_list, \ + my_vrfmap->nfv9_logging_index, my_vrfmap->ip_n_to_1); +#endif /* NO_BULK_LOGGING */ + +#define CNAT_MY_LOGGING_INFO_PRINT \ +do { \ + cnat_syslog_logging_info_t *my_syslog_info = 0; \ + PLATFORM_DEBUG_PRINT("SYSLOG config: \n"); \ + pool_foreach (my_syslog_info, cnat_syslog_logging_info_pool, ({ \ + if (my_syslog_info->i_vrf == my_vrfmap->i_vrf) { \ + PLATFORM_DEBUG_PRINT(" \ + ipv4[0x%x], port[%u], hostname[%s]\n", \ + my_syslog_info->ipv4_address, my_syslog_info->port, \ + my_syslog_info->header_hostname); \ + break; \ + } \ + })); \ +}while (0) \ +; + + +void printf_ipv4(u32 ad) +{ + u8 a __attribute__((unused)), b __attribute__((unused)), + c __attribute__((unused)), d __attribute__((unused)); + + a = ad>>24; + b = (ad>>16) & 0xFF; + c = (ad>>8) & 0xFF; + d = (ad>>0) & 0xFF; + + PLATFORM_DEBUG_PRINT("%d.%d.%d.%d", a, b, c, d); +} +void cnat_main_db_entry_dump (cnat_main_db_entry_t *db) +{ + PLATFORM_DEBUG_PRINT("Main DB entry at %p, index %ld dst_ip %x\n", + db, db - cnat_main_db, db->dst_ipv4); + /* only dump hash next index if it's non EMPTY */ + if (db->out2in_hash.next != EMPTY || db->in2out_hash.next != EMPTY) + PLATFORM_DEBUG_PRINT("out2in hash %u, in2out hash %u\n", + db->out2in_hash.next, + db->in2out_hash.next); + PLATFORM_DEBUG_PRINT("out2in key ipv4 0x%08X, port 0x%04X (%5d), vrf %d, protocol %s\n", + db->out2in_key.k.ipv4, + db->out2in_key.k.port, + db->out2in_key.k.port, + db->out2in_key.k.vrf & CNAT_VRF_MASK, + (db->out2in_key.k.vrf & CNAT_PRO_MASK) == CNAT_UDP ? "UDP" : + ((db->in2out_key.k.vrf & CNAT_PRO_MASK) == CNAT_TCP ? "TCP" : + ((db->in2out_key.k.vrf & CNAT_PRO_MASK) == CNAT_ICMP ? "ICMP" : "PPTP ALG"))); + + PLATFORM_DEBUG_PRINT("in2out key ipv4 0x%08X, port 0x%04X (%5d), vrf %d, protocol %s\n", + db->in2out_key.k.ipv4, + db->in2out_key.k.port, + db->in2out_key.k.port, + db->in2out_key.k.vrf & CNAT_VRF_MASK, + (db->in2out_key.k.vrf & CNAT_PRO_MASK) == CNAT_UDP ? "UDP" : + ((db->in2out_key.k.vrf & CNAT_PRO_MASK) == CNAT_TCP ? "TCP" : + ((db->in2out_key.k.vrf & CNAT_PRO_MASK) == CNAT_ICMP ? "ICMP" : "UNKNOWN"))); + + PLATFORM_DEBUG_PRINT("user %d, user ports (nxt) %d (prev) %d, vrfmap_index 0x%x\n", + db->user_index, db->user_ports.next, db->user_ports.prev, + db->vrfmap_index); + PLATFORM_DEBUG_PRINT("timeout %d \n", db->timeout); + PLATFORM_DEBUG_PRINT("flags 0x%x ", db->flags); + + if (db->flags & CNAT_DB_FLAG_TCP_ACTIVE) { + PLATFORM_DEBUG_PRINT(" TCP_ACTIVE "); + } else if (db->flags & CNAT_DB_FLAG_UDP_ACTIVE) { + PLATFORM_DEBUG_PRINT(" UDP_ACTIVE "); + } else if (db->flags & CNAT_DB_FLAG_STATIC_PORT) { + PLATFORM_DEBUG_PRINT(" STATIC_PORT "); + } + + PLATFORM_DEBUG_PRINT(" ALG dlt0 0x%02X dlt1 0x%02X\n", db->alg.alg_dlt[0], db->alg.alg_dlt[1]); + PLATFORM_DEBUG_PRINT("\n"); + + PLATFORM_DEBUG_PRINT("out2in_pkts: %u\n", db->out2in_pkts); + PLATFORM_DEBUG_PRINT("in2out_pkts: %u\n", db->in2out_pkts); + PLATFORM_DEBUG_PRINT("entry_expires: %u current time: %u\n", db->entry_expires, cnat_current_time); + PLATFORM_DEBUG_PRINT("-------------------------\n"); +} + +void cnat_user_db_entry_dump (cnat_user_db_entry_t *up) +{ + u32 db_entry_index, first_db_entry_index; + cnat_main_db_entry_t *ep; + + PLATFORM_DEBUG_PRINT("User DB entry at %p, index %ld\n", + up, up - cnat_user_db); + PLATFORM_DEBUG_PRINT("translation list head index %u, %u translations portmapindex 0x%x\n", + up->translation_list_head_index, + up->ntranslations, up->portmap_index); + PLATFORM_DEBUG_PRINT("source ipv4 0x%x, source port 0x%x, vrf %d\n", + up->key.k.ipv4, + up->key.k.port, + up->key.k.vrf); + first_db_entry_index = db_entry_index = up->translation_list_head_index; + if (first_db_entry_index != EMPTY) { + PLATFORM_DEBUG_PRINT("Port translation list:\n"); + do { + PLATFORM_DEBUG_PRINT(" [%d]\n", db_entry_index); + ep = cnat_main_db + db_entry_index; + db_entry_index = ep->user_ports.next; + } while (first_db_entry_index != db_entry_index); + } else { + PLATFORM_DEBUG_PRINT("WARNING: empty translation list!\n"); + } + PLATFORM_DEBUG_PRINT("-------------------------\n"); +} + +void cnat_user_db_entry_dump_summary (cnat_user_db_entry_t *up) +{ + u32 db_entry_index, first_db_entry_index; + u32 total_entries = 0; + + PLATFORM_DEBUG_PRINT("User DB entry at %p, index %ld\n", + up, up - cnat_user_db); + PLATFORM_DEBUG_PRINT("translation list head index %u, %u translations portmapindex 0x%x\n", + up->translation_list_head_index, + up->ntranslations, up->portmap_index); + PLATFORM_DEBUG_PRINT("source ipv4 0x%x, source port 0x%x, vrf %d\n", + up->key.k.ipv4, + up->key.k.port, + up->key.k.vrf); + first_db_entry_index = db_entry_index = up->translation_list_head_index; + if (first_db_entry_index != EMPTY) { + PLATFORM_DEBUG_PRINT("Port translation list:\n"); + do { + total_entries++; + } while (first_db_entry_index != db_entry_index); + PLATFORM_DEBUG_PRINT("TOTAL_ENTRIES: %d\n", total_entries); + } else { + PLATFORM_DEBUG_PRINT("WARNING: empty translation list!\n"); + } + PLATFORM_DEBUG_PRINT("-------------------------\n"); +} + +/* for internal development and UT only */ +void cnat_db_dump_main_by_index (int argc, unsigned long *argv) +{ + u32 index, i, len; + u32 active_count, scan_count; + + if (argc != 1) { + PLATFORM_DEBUG_PRINT("invalid input %d\n", argc); + return; + } + + index = argv[0]; + + len = vec_len(cnat_main_db); + + active_count = pool_elts(cnat_main_db); + + if (index >= active_count) { + PLATFORM_DEBUG_PRINT("Index %u >= total active entries %u\n", index, active_count); + return; + } + + scan_count = 0; + for (i=0; i< len; i++) { + if(pool_is_free_index(cnat_main_db, i)) continue; + + if (index == scan_count) { + cnat_main_db_entry_dump(cnat_main_db + i); + break; + } + scan_count++; + } +} + +void cnat_db_dump_main (int argc, unsigned long *argv) +{ + cnat_main_db_entry_t *db; + + pool_foreach(db, cnat_main_db, ({ + cnat_main_db_entry_dump(db); + })); +} + +void cnat_db_dump_main_summary (int argc, unsigned long *argv) +{ + cnat_main_db_entry_t *db; + u32 num_entries = 0; + + pool_foreach(db, cnat_main_db, ({ + num_entries++; + })); + + PLATFORM_DEBUG_PRINT("\nNum main entries %d\n", num_entries); +} + +void cnat_db_dump_user (int argc, unsigned long *argv) +{ + cnat_user_db_entry_t *up; + + pool_foreach(up, cnat_user_db, ({ + cnat_user_db_entry_dump(up); + })); +} + +void cnat_db_dump_user_summary (int argc, unsigned long *argv) +{ + cnat_user_db_entry_t *up; + + pool_foreach(up, cnat_user_db, ({ + cnat_user_db_entry_dump_summary(up); + })); +} + +void cnat_db_dump_hashes (int argc, unsigned long *argv) +{ + int i; + + PLATFORM_DEBUG_PRINT("Main DB out2in hash:\n"); + for (i = 0; i < vec_len(cnat_out2in_hash); i++) { + if (cnat_out2in_hash[i].next != EMPTY) { + PLATFORM_DEBUG_PRINT("[%d]: %u\n", i, cnat_out2in_hash[i].next); + } + } + PLATFORM_DEBUG_PRINT("Main DB in2out hash:\n"); + for (i = 0; i < vec_len(cnat_in2out_hash); i++) { + if (cnat_in2out_hash[i].next != EMPTY) { + PLATFORM_DEBUG_PRINT("[%d]: %u\n", i, cnat_in2out_hash[i].next); + } + } + + PLATFORM_DEBUG_PRINT("User hash:\n"); + for (i = 0; i < vec_len(cnat_user_hash); i++) { + if (cnat_user_hash[i].next != EMPTY) { + PLATFORM_DEBUG_PRINT("[%d]: %u\n", i, cnat_user_hash[i].next); + } + } + PLATFORM_DEBUG_PRINT("-------------------------\n"); +} + + +#ifdef OLD_VRFMAP + +void cnat_db_dump_cdb (int argc, unsigned long *argv) +{ + int k; + int verbose=0; + int all = 0; + + if (argc > 0) { + verbose = 1; + } + + if (argc > 1) { + all = 1; + } + + PLATFORM_DEBUG_PRINT ("%d vrfmap vectors \n", vec_len(cnat_portmap_by_vrf)); + + for (k = 0; k < vec_len(cnat_portmap_by_vrf); k++) { + PLATFORM_DEBUG_PRINT("index%d: status %d i_vrf 0x%x o_vrf 0x%x\n", k, + cnat_portmap_by_vrf[k].status, + cnat_portmap_by_vrf[k].i_vrf, + cnat_portmap_by_vrf[k].o_vrf); + cnat_db_dump_address_portmap(verbose, all, + cnat_portmaps[k], + cnat_portmaps_inuse[k]); + } +} + +void cnat_db_dump_i_vrf (int argc, unsigned long *argv) +{ + u32 k; + u32 vrf =0; + int verbose=0; + int all = 0; + + if (!argc) { + PLATFORM_DEBUG_PRINT("need vrf input ,return\n"); + return; + } + + if (argc > 0) { + vrf = argv[0]; + } + + if (argc > 1) { + verbose = 1; + } + + if (argc > 2) { + all = 1; + } + + PLATFORM_DEBUG_PRINT ("%d vrfmap vectors \n", vec_len(cnat_portmap_by_vrf)); + + for (k = 0; k < vec_len(cnat_portmap_by_vrf); k++) { + if (cnat_portmap_by_vrf[k].i_vrf == vrf) { + PLATFORM_DEBUG_PRINT("%d: i_vrf 0x%x o_vrf 0x%x\n", k, + cnat_portmap_by_vrf[k].i_vrf, + cnat_portmap_by_vrf[k].o_vrf); + cnat_db_dump_address_portmap(verbose, all, + cnat_portmaps[k], + cnat_portmaps_inuse[k]); + return; + } + } + PLATFORM_DEBUG_PRINT("not found\n"); +} + +void cnat_db_dump_o_vrf (int argc, unsigned long *argv) +{ + u32 k; + int verbose=0; + int all = 0; + u32 vrf =0; + + if (!argc) { + PLATFORM_DEBUG_PRINT("need vrf input ,return\n"); + return; + } + + if (argc > 0) { + vrf = argv[0]; + } + + if (argc > 1) { + verbose = 1; + } + + if (argc > 2) { + all = 1; + } + + PLATFORM_DEBUG_PRINT ("%d vrfmap vectors \n", vec_len(cnat_portmap_by_vrf)); + + for (k = 0; k < vec_len(cnat_portmap_by_vrf); k++) { + if (cnat_portmap_by_vrf[k].o_vrf == vrf) { + PLATFORM_DEBUG_PRINT("index%d: status %d i_vrf 0x%x o_vrf 0x%x\n", k, + cnat_portmap_by_vrf[k].status, + cnat_portmap_by_vrf[k].i_vrf, + cnat_portmap_by_vrf[k].o_vrf); + cnat_db_dump_address_portmap(verbose, all, + cnat_portmaps[k], + cnat_portmaps_inuse[k]); + return; + } + } + PLATFORM_DEBUG_PRINT("not found\n"); +} +#endif + +#ifdef TOBE_PORTED +/* This does not seem to be used */ +void cnat_db_mem_usage_cmd (int argc, unsigned long *argv) +{ + pool_header_t * p; + _VEC *_v; + u32 bitmap_bytes=0, free_indices_bytes=0, vec_bytes=0, total_bytes=0; + + if (cnat_main_db) { + p = pool_header(cnat_main_db); + if (p->free_bitmap) { + _v = _vec_find(p->free_bitmap); + bitmap_bytes = _v->alen; + } else { + bitmap_bytes = 0; + } + if (p->free_indices) { + _v = _vec_find(p->free_indices); + free_indices_bytes = _v->alen; + } else { + free_indices_bytes = 0; + } + _v = _vec_find(cnat_main_db); + vec_bytes = _v->alen; + } else { + vec_bytes = 0; + } + + total_bytes = bitmap_bytes + free_indices_bytes + vec_bytes; + + PLATFORM_DEBUG_PRINT ("Main DB: %d total bytes, %d bitmap, %d indices, %d vec\n", + total_bytes, bitmap_bytes, free_indices_bytes, vec_bytes); + PLATFORM_DEBUG_PRINT (" vector length %d\n", vec_len(cnat_main_db)); + + if (cnat_user_db) { + p = pool_header(cnat_user_db); + if (p->free_bitmap) { + _v = _vec_find(p->free_bitmap); + bitmap_bytes = _v->alen; + } else { + bitmap_bytes = 0; + } + if (p->free_indices) { + _v = _vec_find(p->free_indices); + free_indices_bytes = _v->alen; + } else { + free_indices_bytes = 0; + } + _v = _vec_find(cnat_user_db); + vec_bytes = _v->alen; + } else { + vec_bytes = 0; + } + + total_bytes = bitmap_bytes + free_indices_bytes + vec_bytes; + + PLATFORM_DEBUG_PRINT ("User DB: %d total bytes, %d bitmap, %d indices, %d vec\n", + total_bytes, bitmap_bytes, free_indices_bytes, vec_bytes); + PLATFORM_DEBUG_PRINT (" vector length %d\n", vec_len(cnat_user_db)); + + _v = _vec_find(cnat_out2in_hash); + PLATFORM_DEBUG_PRINT("out2in hash: %d total bytes\n", _v->alen); + + _v = _vec_find(cnat_in2out_hash); + PLATFORM_DEBUG_PRINT("in2out hash: %d total bytes\n", _v->alen); +} +#endif + +static void print_server_ip_address (vlib_main_t *vm, u32 ip) +{ + unsigned char bytes[4]; + bytes[0] = ip & 0xFF; + bytes[1] = (ip >> 8) & 0xFF; + bytes[2] = (ip >> 16) & 0xFF; + bytes[3] = (ip >> 24) & 0xFF; + vlib_cli_output(vm, "\tIP Address : %d.%d.%d.%d\n", bytes[0], bytes[1], bytes[2], bytes[3]); +} + +void cnat_nfv9_show_collector (vlib_main_t *vm, cnat_nfv9_logging_info_t *my_nfv9_logging_info) +{ + nfv9_server_info_t *server = nfv9_server_info_pool + + my_nfv9_logging_info->server_index; +#if 0 + vlib_cli_output(vm,"\tVRF - 0x%x - %s\n", my_nfv9_logging_info->i_vrf, + my_nfv9_logging_info->deleted?"DELETED":"ACTIVE"); +#endif + print_server_ip_address(vm, clib_net_to_host_u32(server->ipv4_address)); + vlib_cli_output(vm,"\tPort : %d\n", server->port); + vlib_cli_output(vm,"\tTimeout : %d\n", server->timeout_rate); + vlib_cli_output(vm,"\tRefresh Rate : %d\n", server->refresh_rate); + vlib_cli_output(vm,"\tMax Pkt Size : %d\n", my_nfv9_logging_info->max_length_minus_max_record_size); + + return; +} + +void cnat_db_dump_policy (int argc, unsigned long *argv) +{ + + PLATFORM_CNAT_DB_DUMP_POLICY_PRINT(); + + if (cnat_nfv9_global_info.cnat_nfv9_init_done) { + if (cnat_nfv9_global_info.cnat_nfv9_global_collector_index != EMPTY) { + cnat_nfv9_logging_info_t *my_nfv9_logging_info; + nfv9_server_info_t *server __attribute__((unused)); + + my_nfv9_logging_info = cnat_nfv9_logging_info_pool + + cnat_nfv9_global_info.cnat_nfv9_global_collector_index; + server = nfv9_server_info_pool + + my_nfv9_logging_info->server_index; + + PLATFORM_DEBUG_PRINT("NFv9 logging ip 0x%x port 0x%x refresh-rate %d timeout %d\n", + server->ipv4_address, + server->port, + server->refresh_rate, + server->timeout_rate); + PLATFORM_DEBUG_PRINT("NFv9 path_mtu = %d\n", + my_nfv9_logging_info->max_length_minus_max_record_size); + } else { + PLATFORM_DEBUG_PRINT("NFv9 global logging is not configured\n"); + } + } else { + PLATFORM_DEBUG_PRINT("NFv9 LOGGING is not configured\n"); + } + +} + +#ifdef OLD_VRFMAP +void cnat_show_cdb (int verbose) +{ + int k, l, i; + for (i = 0; i < vec_len(cnat_portmap_by_vrf); i++) { + PLATFORM_DEBUG_PRINT("i_vrf %d : o_vrf %d\n", + cnat_portmap_by_vrf[i].i_vrf, + cnat_portmap_by_vrf[i].o_vrf); + } + + PLATFORM_DEBUG_PRINT("port limit %d\n", cnat_main_db_max_ports_per_user); + + PLATFORM_DEBUG_PRINT ("%d portmap vectors\n", vec_len(cnat_portmaps)); + + for (k = 0; k < vec_len(cnat_portmaps); k++) { + cnat_portmap_t *pm; + u16 *inuse; + pm = cnat_portmaps[k]; + inuse = cnat_portmaps_inuse[k]; + for (l = 0; l < vec_len(pm); l++) { + if (inuse[l] || verbose ) { + u32 net_address; + net_address = + spp_host_to_net_byte_order_32((pm+l)->ipv4_address); + printf_ipv4(net_address); + PLATFORM_DEBUG_PRINT (": %d inuse\n", inuse[l]); + if (verbose && inuse[l]) { + cnat_portmap_dump (pm+l, inuse+l); + } + } + } + } +} +#endif + + + +/* v2 show command */ +void cnat_show_address_portmap_sumary (cnat_portmap_v2_t *pm) +{ + cnat_portmap_v2_t *my_pm =0; + u32 first_address = 0; + u32 second_address = 0; + u32 last_address = 0; + u32 i, pm_len; + + if ((pm_len = vec_len(pm))) { + PLATFORM_DEBUG_PRINT("%d portmap in this list 0x%lx\n", + pm_len, (u32)pm); + for (i = 0; i < pm_len; i++) { + my_pm = pm + i; + if (!first_address) { + first_address = my_pm->ipv4_address; + } else if (!second_address) { + second_address = my_pm->ipv4_address; + } + last_address = my_pm->ipv4_address; + } + + if (first_address) { + PLATFORM_DEBUG_PRINT("1. 0x%08x", first_address); + } + if (second_address) { + PLATFORM_DEBUG_PRINT(", 2. 0x%08x", second_address); + } + + if ((last_address != first_address) && + (last_address != second_address)) { + PLATFORM_DEBUG_PRINT(", ....., %d. 0x%08x", pm_len, last_address); + } + PLATFORM_DEBUG_PRINT("\n"); + } else { + PLATFORM_DEBUG_PRINT("ZERO POOL ADDRESSES in this list 0x%x \n", (u32)pm); + } +} + + +void cnat_show_address_portmap (int verbose, int all, + cnat_portmap_v2_t *pm, u16 port_limit) +{ + cnat_portmap_v2_t *my_pm =0; + u32 i, pm_len; + + pm_len = vec_len(pm); + if (!all) { + cnat_show_address_portmap_sumary(pm); + } else { + PLATFORM_DEBUG_PRINT("%d portmap in this list 0x%x \n", pm_len, (u32)pm); + } + + for (i = 0; i < pm_len; i++) { + + my_pm = pm + i; + if (all) { + PLATFORM_DEBUG_PRINT("pm:0x%x ip address:0x%x del_time 0x%x inuse:%d\n", + (u32)my_pm, my_pm->ipv4_address, my_pm->delete_time, my_pm->inuse); + } else if (my_pm->inuse) { + PLATFORM_DEBUG_PRINT("pm:0x%x ip address:0x%x inuse:%d\n", + (u32)my_pm, my_pm->ipv4_address, my_pm->inuse); + } + + if (verbose && (my_pm->inuse)) { + if(PREDICT_FALSE(!port_limit)) { + cnat_portmap_dump_v2 (my_pm, cnat_main_db_max_ports_per_user); + } + else { + cnat_portmap_dump_v2 (my_pm, port_limit); + } + } + } + + PLATFORM_DEBUG_PRINT("\n"); +} + + +void cnat_show_cdb_v2 (int verbose, int all) +{ + cnat_vrfmap_t *my_vrfmap = 0; + cnat_portmap_v2_t *pm =0; + PLATFORM_DEBUG_PRINT("port limit %d\n", cnat_main_db_max_ports_per_user); + PLATFORM_DEBUG_PRINT("total address pool allocated %d\n", total_address_pool_allocated); + PLATFORM_DEBUG_PRINT("icmp rate limit %d (per core %d)\n", + cnat_main_db_icmp_rate_limit, cnat_main_db_icmp_rate_limit_core); + PLATFORM_DEBUG_PRINT("dynamic port range start %d\n", cnat_static_port_range); + if (pptp_cfg.enable == PPTP_DISABLED) { + PLATFORM_DEBUG_PRINT("PPTP alg disabled \n"); + } else { + PLATFORM_DEBUG_PRINT("PPTP alg enabled \n"); + } + + if (ftp_alg_enabled) { + PLATFORM_DEBUG_PRINT("FTP alg enabled\n"); + } else { + PLATFORM_DEBUG_PRINT("FTP alg disabled\n"); + } + + pool_foreach (my_vrfmap, cnat_map_by_vrf, ({ + CNAT_MY_VRFMAP_PRINT + CNAT_MY_LOGGING_INFO_PRINT + PLATFORM_DEBUG_PRINT("per vrf port limit %d\n", my_vrfmap->port_limit); + pm = my_vrfmap->portmap_list; + cnat_show_address_portmap(verbose, all, pm, my_vrfmap->port_limit); + + })); +} + + +void cnat_show_cdb_command_v2(int argc, unsigned long *argv) +{ + int verbose=0; + int all = 0; + + if (argc > 0) { + verbose = 1; + } + + if (argc > 1) { + all = 1; + } + + cnat_show_cdb_v2(verbose, all); +} + +void cnat_show_ivrf_command_v2 (int argc, unsigned long *argv) +{ + u32 vrf =0; + int verbose=0; + int all = 0; + cnat_vrfmap_t *my_vrfmap = 0; + cnat_portmap_v2_t *pm =0; + + if (!argc) { + PLATFORM_DEBUG_PRINT("need vrf input ,return\n"); + return; + } + if (argc > 0) { + vrf = argv[0]; + } + if (argc > 1) { + verbose = 1; + } + if (argc > 2) { + all = 1; + } + PLATFORM_DEBUG_PRINT ("%lld vrfmap vectors \n", pool_elts(cnat_map_by_vrf)); + pool_foreach (my_vrfmap, cnat_map_by_vrf, ({ + if (my_vrfmap->i_vrf == vrf) { + CNAT_MY_VRFMAP_PRINT + pm = my_vrfmap->portmap_list; + cnat_show_address_portmap(verbose, all, pm,my_vrfmap->port_limit); + return; + } + })); + PLATFORM_DEBUG_PRINT("not found\n"); +} + +void cnat_show_ovrf_command_v2 (int argc, unsigned long *argv) +{ + u32 not_found =1; + u32 vrf =0; + int verbose=0; + int all = 0; + cnat_vrfmap_t *my_vrfmap = 0; + cnat_portmap_v2_t *pm =0; + + if (!argc) { + PLATFORM_DEBUG_PRINT("need vrf input ,return\n"); + return; + } + if (argc > 0) { + vrf = argv[0]; + } + if (argc > 1) { + verbose = 1; + } + if (argc > 2) { + all = 1; + } + PLATFORM_DEBUG_PRINT("%d vrfmap vectors \n", pool_elts(cnat_map_by_vrf)); + pool_foreach (my_vrfmap, cnat_map_by_vrf, ({ + if (my_vrfmap->o_vrf == vrf) { + CNAT_MY_VRFMAP_PRINT + pm = my_vrfmap->portmap_list; + cnat_show_address_portmap(verbose, all, pm,my_vrfmap->port_limit); + not_found = 0; + } + })); + if (not_found) { + PLATFORM_DEBUG_PRINT("not found\n"); + } +} + +void cnat_timeout_db_entry_dump (cnat_timeout_db_entry_t *up) +{ + u32 db_entry_index __attribute__((unused)), + first_db_entry_index __attribute__((unused)); + + PLATFORM_DEBUG_PRINT("Timeout DB entry at index %ld\n", up - cnat_timeout_db); + PLATFORM_DEBUG_PRINT("Desnt key 0x%16llx\n", up->t_key.timeout_key.key64); + PLATFORM_DEBUG_PRINT("Timeout value %d\n", up->t_key.timeout_value); + PLATFORM_DEBUG_PRINT("Hash Next 0x%x\n", up->t_hash.next); + +} + +void cnat_db_dump_timeout () +{ + cnat_timeout_db_entry_t *up; + pool_header_t *h; + u32 used __attribute__((unused)), free __attribute__((unused)); + + h = pool_header(cnat_timeout_db); + free = vec_len(h->free_indices); + used = (vec_len(cnat_timeout_db) - free); + + PLATFORM_DEBUG_PRINT("Timeout DB Free %d, Used %d\n",free, used); + + pool_foreach(up, cnat_timeout_db, ({ + cnat_timeout_db_entry_dump(up); + })); +} + diff --git a/plugins/vcgn-plugin/vcgn/cnat_show_api.h b/plugins/vcgn-plugin/vcgn/cnat_show_api.h new file mode 100644 index 00000000..5904c7e2 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_show_api.h @@ -0,0 +1,40 @@ +/* + * Copyright (c) 2015 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#ifndef __CNAT_SHOW_API_H__ +#define __CNAT_SHOW_API_H__ + +typedef struct _spp_api_cnat_v4_show_inside_entry_req { + u16 _spp_msg_id; + u16 vrf_id; + u32 ipv4_addr; + u16 start_port; + u16 end_port; + u8 flags; + u8 all_entries; + u8 protocol; +} spp_api_cnat_v4_show_inside_entry_req_t; + +typedef struct _spp_api_cnat_v4_show_outside_entry_req { + u16 _spp_msg_id; + u16 vrf_id; + u32 ipv4_addr; + u16 start_port; + u16 end_port; + u8 flags; + u8 protocol; +} spp_api_cnat_v4_show_outside_entry_req_t; + + +#endif diff --git a/plugins/vcgn-plugin/vcgn/cnat_show_response.h b/plugins/vcgn-plugin/vcgn/cnat_show_response.h new file mode 100644 index 00000000..bec1bd97 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_show_response.h @@ -0,0 +1,580 @@ +/* + *------------------------------------------------------------------ + * cnat_show_response.h show command response structs + * + * Copyright (c) 2007-2013 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ + +#ifndef __CNAT_SHOW_RESPONSE_H__ +#define __CNAT_SHOW_RESPONSE_H__ + +/* + * Flags indicating the type of translation entry + */ +#define CNAT_TRANSLATION_ENTRY_ALL 0x0 +#define CNAT_TRANSLATION_ENTRY_STATIC 0x1 +#define CNAT_TRANSLATION_ENTRY_ALG 0x2 +#define CNAT_TRANSLATION_ENTRY_DYNAMIC 0x4 + +/* for PCP support */ +#define CNAT_TRANSLATION_ENTRY_PCPI_DYNAMIC 0x08 +#define CNAT_TRANSLATION_ENTRY_PCPE_DYNAMIC 0x10 + +#define MAX_NODE_NAME_LEN 18 +#define MAX_CTR_NAME_LEN 10 + +/* + * show translation entry response structures + */ +typedef struct { + u16 call_id; + u16 cnat_call_id; /* mapped call Id */ + u16 dst_call_id; /* dest call id */ +} cnat_v4_show_gre_entry; + +typedef struct { + u16 msg_id; + u16 rc; /* o/p parameter. */ + u16 num_entries; /* Number of entries sent as output */ + u16 vrf_id; /* vrf id */ + u32 pns_ip; + cnat_v4_show_gre_entry entries[0]; +} cnat_v4_show_gre_entry_resp; + +/* + * show translation entry response structures + */ +typedef struct { + u32 ipv4_addr; + u16 src_port; + u16 cnat_port; /* port which replaced the src port */ + u8 protocol; + u8 pad; + u16 flags; + u16 nsessions; + u32 in2out_packets; + u32 out2in_packets; +} cnat_v4_show_translation_entry; + +typedef struct { + u16 msg_id; + u8 rc; /* o/p parameter. */ + u8 num_entries; /* Number of entries sent as output */ + u16 vrf_id; /* vrf id */ + u16 pad; + cnat_v4_show_translation_entry entries[0]; +} cnat_v4_show_entry_resp; + +/* + * show free/used ipv4 address/port response structure + */ +typedef struct { + u32 ip_addr; + u32 free_used_ports; +} cnat_v4_show_free_used_entry; + +typedef struct { + u16 msg_id; + u8 rc; + u8 count; + u32 max_ports; + cnat_v4_show_free_used_entry entry_list[0]; +} cnat_v4_show_free_used_entry_resp; + +/* + * Node name to id mapping + */ +typedef struct { + u8 node_id; + u8 pad; + char node_name[MAX_NODE_NAME_LEN]; +} cnat_statistics_node_name; + +typedef struct { + u16 msg_id; + u8 rc; + u8 num_nodes; + cnat_statistics_node_name node_name_array[0]; +} cnat_statistics_node_name_mapping_resp; + +/* + * Counter name to id mapping + */ +typedef struct { + u8 node_id; + u8 counter_id; + char counter_name[MAX_CTR_NAME_LEN]; +} cnat_statistics_counter_name; + +typedef struct { + u16 msg_id; + u8 rc; + u8 num_counters; + cnat_statistics_counter_name counter_name_array[0]; +} cnat_statistics_counter_name_mapping_resp; + + +/* + * Node name to id mapping + */ +typedef struct { + u16 msg_id; + u8 rc; + u8 num_nodes; + u32 pad; + u64 counters [0]; +} cnat_statistics_counter_values; + +/* + * Summary Stats + */ +typedef struct { + u32 eaddr; + u32 ports_used; +} pool_address_usage_t; + +typedef struct { + u16 msg_id; + u8 rc; + u8 pad; + u16 max_pkt_size; + u16 pool_address_copied; + u32 active_translations; + u32 translation_create_rate; + u32 translation_delete_rate; + u32 in2out_forwarding_rate; + u32 out2in_forwarding_rate; + u32 dummy; + u64 in2out_drops_port_limit_exceeded; + u64 in2out_drops_system_limit_reached; + u64 in2out_drops_resource_depletion; + u64 no_translation_entry_drops; + u64 pptp_active_tunnels; + u64 pptp_active_channels; + u64 pptp_ctrlmsg_drops; + u32 no_sessions; + + u32 pool_address_totally_free; + u32 pool_address_used; /* The following array size will be lesser of + (pool_address_used, 200) */ + u32 num_subscribers; + u64 drops_sessiondb_limit_exceeded; + u64 in2out_drops_src_ip_no_config; // for deterministic nat on brahmos + pool_address_usage_t pool_address_usage[0]; +} cnat_show_statistics_summary_resp; + + +typedef struct { + u16 msg_id; + u8 rc; + u8 pad; + u64 o2i_tcp_seq_mismatch_drop; + u64 o2i_tcp_seq_mismatch; + u64 o2i_sessions_created; + u64 o2i_end_point_filter_drop; +} cnat_show_counters_summary_resp; + + +typedef struct { + u16 msg_id; + u8 rc; + u8 pad; + + /* + * XLAT statistics + */ + u64 v6_to_v4_tcp_input_count; + u64 v6_to_v4_tcp_non_translatable_drop_count; + u64 v6_to_v4_tcp_invalid_next_hdr_drop_count; + u64 v6_to_v4_tcp_no_db_drop_count; + u64 v6_to_v4_tcp_output_count; + + u64 v4_to_v6_tcp_input_count; + u64 v4_to_v6_tcp_no_db_drop_count; + u64 v4_to_v6_tcp_output_count; + + u64 v6_to_v4_udp_input_count; + u64 v6_to_v4_udp_non_translatable_drop_count; + u64 v6_to_v4_udp_invalid_next_hdr_drop_count; + u64 v6_to_v4_udp_no_db_drop_count; + u64 v6_to_v4_udp_output_count; + + u64 v4_to_v6_udp_input_count; + u64 v4_to_v6_udp_no_db_drop_count; + u64 v4_to_v6_udp_output_count; + u64 v4_to_v6_udp_frag_crc_zero_drop_count; + u64 v4_to_v6_udp_crc_zero_recycle_sent_count; + u64 v4_to_v6_udp_crc_zero_recycle_drop_count; + + u64 v6_to_v4_icmp_qry_input_count; + u64 v6_to_v4_icmp_no_db_drop_count; + u64 v6_to_v4_icmp_frag_drop_count; + u64 v6_to_v4_icmp_invalid_next_hdr_drop_count; + u64 v6_to_v4_icmp_non_translatable_drop_count; + u64 v6_to_v4_icmp_non_translatable_fwd_count; + u64 v6_to_v4_icmp_unsupported_type_drop_count; + u64 v6_to_v4_icmp_err_output_count; + u64 v6_to_v4_icmp_qry_output_count; + + u64 v4_to_v6_icmp_qry_input_count; + u64 v4_to_v6_icmp_no_db_drop_count; + u64 v4_to_v6_icmp_frag_drop_count; + u64 v4_to_v6_icmp_unsupported_type_drop_count; + u64 v4_to_v6_icmp_err_output_count; + u64 v4_to_v6_icmp_qry_output_count; + + u64 v6_to_v4_subsequent_frag_input_count; + u64 v6_to_v4_subsequent_frag_non_translatable_drop_count; + u64 v6_to_v4_subsequent_frag_invalid_next_hdr_drop_count; + u64 v6_to_v4_subsequent_frag_no_db_drop_count; + u64 v6_to_v4_subsequent_frag_output_count; + + u64 v4_to_v6_subsequent_frag_input_count; + u64 v4_to_v6_subsequent_frag_no_db_drop_count; + u64 v4_to_v6_subsequent_frag_output_count; + + u64 v4_to_v6_subsequent_frag_drop_count; + u64 v4_to_v6_subsequent_frag_throttled_count; + u64 v4_to_v6_subsequent_frag_timeout_drop_count; + u64 v4_to_v6_subsequent_frag_tcp_input_count; + u64 v4_to_v6_subsequent_frag_udp_input_count; + u64 v4_to_v6_subsequent_frag_icmp_input_count; + + u64 v6_to_v4_options_input_count; + u64 v6_to_v4_options_drop_count; + u64 v6_to_v4_options_forward_count; + u64 v6_to_v4_options_no_db_drop_count; + u64 v6_to_v4_unsupp_proto_count; + + u64 v4_to_v6_options_input_count; + u64 v4_to_v6_options_drop_count; + u64 v4_to_v6_options_forward_count; + u64 v4_to_v6_options_no_db_drop_count; + u64 v4_to_v6_unsupp_proto_count; + + u64 v4_icmp_gen_count; + u64 v6_icmp_gen_count; +} xlat_show_statistics_summary_resp; + +typedef struct { + u16 msg_id; + u8 rc; + u8 pad; + /* Total v4 packets to BR */ + u64 v4_to_v6_input_total_count; + /* Total v4 tunneled packets to BR */ + u64 v4_to_v6_41_input_total_count; + /* proto 41 packets without minimum, of 40, v6 payload */ + u64 v4_to_v6_41_insuff_v6payld_count; + /* total proto 41 packets being considered for decap */ + u64 v4_to_v6_41_valid_count; + /* proto 41 packets that failed security check*/ + u64 v4_to_v6_41_sec_check_fail_count; + /* packets with no active db entry */ + u64 v4_to_v6_no_db_drop_count; + /* proto 41 packets actually getting decapped */ + u64 v4_to_v6_41_decap_count; + /* total v4 packets which are neither icmp nor 41 */ + u64 v4_to_v6_unsupported_protocol_count; + /* v4 tunneled packets with invalid v6 source address */ + u64 v4_to_v6_41_invalid_v6_source; + /* total icmpv4 packets destined to BR */ + u64 v4_forus_icmp_input_count; + /* total icmpv4 echo replies by BR */ + u64 v4_icmp_reply_count; + /* total icmpv4 error messages translated to icmpv6 by BR */ + u64 v4_to_v6_icmp_translation_count; + /* total packets with icmpv4 type/code which are not supported by BR */ + u64 v4_icmp_unsupported_count; + /* total icmpv4 packets which are rate-limited by BR */ + u64 v4_icmp_throttled_count; + /* total ICMPv4 error messages which could not be translated */ + u64 v4_icmp_non_translatable_drop_count; + + /* ipv4 defrag stats */ + u64 v4_to_v6_frag_input_count; + u64 v4_to_v6_frag_sec_check_fail_count; + u64 v4_to_v6_frag_reassem_count; + u64 v4_to_v6_frag_timeout_drop_count; + u64 v4_to_v6_frag_icmp_input_count; + u64 v4_to_v6_frag_41_insuff_v6payld_count; + u64 v4_to_v6_frag_no_db_drop_count; + u64 v4_to_v6_frag_unsupported_protocol_count; + u64 v4_to_v6_frag_41_invalid_v6_source; + u64 v4_to_v6_frag_throttled_count; + u64 v4_to_v6_frag_dup_count; + u64 v4_to_v6_frag_reassem_frag_count; + u64 v4_to_v6_frag_disable_count; + u64 v4_to_v6_frag_drop_count; + + /* total v6 packets input to BR */ + u64 v6_to_v4_total_input_count; + /* v6 packets with no active db entry */ + u64 v6_to_v4_no_db_drop_count; + /* forus v6 packets with next header other than icmpv6 */ + u64 v6_to_v4_forus_unsupp_proto_count; + /* total v6 packets that got tunneled */ + u64 v6_to_v4_encap_count; + /* total icmpv6 packets destined to BR */ + u64 v6_forus_icmp_input_count; + /* total icmpv6 echo replies by BR */ + u64 v6_icmp_reply_count; + /* total icmpv6 PTB messages generated by BR */ + u64 v6_ptb_generated_count; + /* total ipv6 packets for which PTBv6 was NOT generated by BR */ + u64 v6_ptb_not_generated_drop_count; + /* total icmpv6 Neighbor Advertisements generated by BR */ + u64 v6_na_generated_count; + /* total icmpv6 TTL expiry messages generated by BR */ + u64 v6_ttl_expiry_generated_count; + /* total ICMPv6 fragments, which are dropped by BR */ + u64 v6_to_v4_frag_icmp_input_count; + /* total packets with icmpv6 type/code which are not supported by BR */ + u64 v6_icmp_unsupported_count; + /* total icmpv6 packets which are rate-limited by BR */ + u64 v6_icmp_throttled_count; +} v6rd_show_statistics_summary_resp; + +typedef struct { + u16 msg_id; + u8 rc; + u8 pad; + + /* Total Incoming Count */ + u64 v4_input_count; + /* Total Drop Count */ + u64 v4_drop_count; + /* Total Output Count */ + u64 v4_to_v6_output_count; + /* TCP Incoming Count */ + u64 v4_tcp_input_count; + /* TCP Output Count */ + u64 v4_tcp_output_count; + /* UDP Incoming Count */ + u64 v4_udp_input_count; + /* UDP Output Count */ + u64 v4_udp_output_count; + /* ICMPv4 Incoming Count */ + u64 v4_icmp_input_count; + /* ICMPv4 Output Count */ + u64 v4_to_v6_icmp_output_count; + /* Invalid UIDB Drop Count */ + u64 v4_invalid_uidb_drop_count; + /* NoDb Drop Count */ + u64 v4_no_db_drop_count; + /* TTL Expire Drop Count */ + u64 v4_ttl_expire_drop_count; + /* Invalid IP Destination Drop Count */ + u64 v4_invalid_destination_prefix_drop_count; + /* Packet Execeeding Path MTU Drop Count */ + u64 v4_path_mtu_exceed_count; + /* Unsupported Protocol Drop Count */ + u64 v4_invalid_proto_type_drop_count; + /* ICMPv4 Generated for TTL Expire Count */ + u64 v4_ttl_expiry_generated_count; + /* ICMPv4 Generated for Error Count */ + u64 v4_icmp_error_gen_count; + /* ICMPv4 Packets Rate-Limited Count */ + u64 v4_icmp_throttled_drop_count; + /* TCP MSS Changed Count */ + u64 v4_tcp_mss_changed_count; + + /* Total Incoming Count */ + u64 v6_input_count; + /* Total Drop Count */ + u64 v6_drop_count; + /* Total Output Count */ + u64 v6_to_v4_output_count; + /* TCP Incoming Count */ + u64 v6_tcp_input_count; + /* TCP Output Count */ + u64 v6_tcp_output_count; + /* UDP Incoming Count */ + u64 v6_udp_input_count; + /* UDP Output Count */ + u64 v6_udp_output_count; + /* ICMPv4 Incoming Count */ + u64 v6_icmpv4_input_count; + /* ICMPv4 Output Count */ + u64 v6_icmpv4_output_count; + /* Invalid UIDB Drop Count */ + u64 v6_invalid_uidb_drop_count; + /* NoDb Drop Count */ + u64 v6_no_db_drop_count; + /* TTL Expire Drop Count */ + u64 v6_ttl_expire_drop_count; + /* Invalid IPv6 Destination Drop Count */ + u64 v6_invalid_destination_drop_count; + /* Invalid Source Prefix Drop Count */ + u64 v6_invalid_source_prefix_drop_count; + /* Unsupported Protocol Drop Count */ + u64 v6_invalid_proto_type_drop_count; + /* ICMPv6 Input Count */ + u64 v6_icmp_input_count; + /* ICMPv6 Invalid UIDB Drop Count */ + u64 v6_icmp_invalid_uidb_drop_count; + /* ICMPv6 NoDb Drop Count */ + u64 v6_icmp_no_db_drop_count; + /* ICMPv6 TTL Expire Drop Count */ + u64 v6_icmp_ttl_expire_drop_count; + /* ICMPv6 Invalid IPv6 Destination Drop Count */ + u64 v6_icmp_invalid_destination_drop_count; + /* ICMPv6 Unsupported Type Drop Count */ + u64 v6_icmp_unsupported_type_drop_count; + /* ICMPv6 Invalid NxtHdr Drop Count*/ + u64 v6_icmp_unsupported_nxthdr_drop_count; + /* ICMPv6 Frag Drop Count */ + u64 v6_icmp_frag_drop_count; + /* ICMPv6 Forus Count */ + u64 v6_forus_icmp_input_count; + /* ICMPv6 Echo Response Received Count */ + u64 v6_received_echo_response_count; + /* ICMPv6 Echo Replies Count */ + u64 v6_echo_reply_count; + /* ICMPv6 Translated to ICMPV4 Output Count*/ + u64 v6_to_v4_icmp_output_count; + /* ICMPv6 Generated for TTL Expire Count */ + u64 v6_ttl_expiry_generated_count; + /* ICMPv6 Generated for Error Count */ + u64 v6_icmp_error_gen_count; + /* ICMPv6 Packets Rate-Limited Count */ + u64 v6_icmp_throttled_drop_count; + /* TCP MSS Changed Count */ + u64 v6_tcp_mss_changed_count; + + /*Total Input Count*/ + u64 v4_to_v6_frag_input_count; + /*Total Drop Count*/ + u64 v4_to_v6_frag_drop_count; + /*Reassembled Output Count*/ + u64 v4_to_v6_frag_reassem_count; + + /*TCP Input Count*/ + u64 v4_to_v6_frag_tcp_input_count; + /*UDP Input Count*/ + u64 v4_to_v6_frag_udp_input_count; + /*ICMPv4 Input Count*/ + u64 v4_to_v6_frag_icmp_input_count; + + /*Invalid UIDB Drop Count */ + u64 v4_to_v6_frag_invalid_uidb_drop_count; + /*NoDb Drop Count*/ + u64 v4_to_v6_frag_no_db_drop_count; + /*Unsupported Protocol Drop Count*/ + u64 v4_to_v6_frag_invalid_proto_type_drop_count; + /*Throttled Count*/ + u64 v4_to_v6_frag_throttled_count; + /*Timeout Drop Count*/ + u64 v4_to_v6_frag_timeout_drop_count; + /*Duplicates Drop Count*/ + u64 v4_to_v6_frag_dup_count; + + /*Total Input Count*/ + u64 v6_to_v4_inner_frag_input_count; + /*Total Drop Count*/ + u64 v6_to_v4_inner_frag_drop_count; + /*Total Output Count*/ + u64 v6_to_v4_inner_frag_output_count; + + /*TCP Input Count*/ + u64 v6_to_v4_inner_frag_tcp_input_count; + /*UDP Input Count*/ + u64 v6_to_v4_inner_frag_udp_input_count; + /*ICMPv4 Input Count*/ + u64 v6_to_v4_inner_frag_icmp_input_count; + + /*Invalid Source Prefix Drop Count*/ + u64 v6_to_v4_inner_frag_invalid_source_prefix_drop_count; + /*Unsupported Protocol Drop Count*/ + u64 v6_to_v4_inner_frag_invalid_proto_type_drop_count; + /*Throttled Count*/ + u64 v6_to_v4_inner_frag_throttled_count; + /*Timeout Drop Count*/ + u64 v6_to_v4_inner_frag_timeout_drop_count; + /*Duplicates Drop Count*/ + u64 v6_to_v4_inner_frag_dup_count; + + /*ICMPv6 Generated for Error Count */ + u64 v6_to_v4_inner_frag_icmp_error_gen_count; + /*ICMPv6 Packets Rate-Limited Count */ + u64 v6_to_v4_inner_frag_icmp_throttled_drop_count; + + /*TCP MSS Changed Count */ + u64 v6_to_v4_inner_frag_tcp_mss_changed_count; + +} mape_show_statistics_summary_resp; + +/* + * The following are the command types for Generic Command cases + */ +#define CNAT_DEBUG_GENERIC_COMMAND_READ_MEM 1 +#define CNAT_DEBUG_GENERIC_COMMAND_WRITE_MEM 2 +#define CNAT_DEBUG_GENERIC_COMMAND_DB_SUMMARY 3 +#define CNAT_DEBUG_GENERIC_COMMAND_USER_DB_PM 4 +#define CNAT_DEBUG_GET_CGN_DB_SUMMARY 5 + +typedef enum { + CNAT_DEBUG_GENERIC_COMMAND_DUMP_POLICY, + CNAT_DEBUG_GENERIC_COMMAND_DUMP_MAIN_DB, + CNAT_DEBUG_GENERIC_COMMAND_DUMP_USER_DB, + CNAT_DEBUG_GENERIC_COMMAND_DUMP_HASHES_DB, + CNAT_DEBUG_GENERIC_COMMAND_DUMP_VRF_MAP, + CNAT_DEBUG_GENERIC_COMMAND_DUMP_SUMMARY_DB, + CNAT_DEBUG_GENERIC_COMMAND_DUMP_STATS, + CNAT_DEBUG_GENERIC_COMMAND_CLEAR_STATS, + CNAT_DEBUG_GENERIC_COMMAND_DUMP_NODE_COUNTER, + CNAT_DEBUG_GENERIC_COMMAND_CLEAR_NODE_COUNTER, + CNAT_DEBUG_GENERIC_COMMAND_DUMP_CNAT_COUNTER, + CNAT_DEBUG_GENERIC_COMMAND_DUMP_VA, + CNAT_DEBUG_GENERIC_COMMAND_SHOW_CONFIG, + CNAT_DEBUG_GENERIC_COMMAND_SHOW_NFV9, + CNAT_DEBUG_GENERIC_COMMAND_SHOW_IVRF, + CNAT_DEBUG_GENERIC_COMMAND_SHOW_OVRF, + CNAT_DEBUG_SPP_LOG, + CNAT_DEBUG_GENERIC_COMMAND_DEBUG_OPTIONS, + CNAT_DEBUG_GENERIC_COMMAND_DUMP_DEBUG_LEVELS, + CNAT_DEBUG_GENERIC_COMMAND_DEBUG_FLAGS, + CNAT_READ_TEMP_SENSORS, + CNAT_BLOCK_OCTEON_SENSOR_READ, + CNAT_DEBUG_GENERIC_COMMAND_DUMP_MAIN_DB_SUMMARY, + CNAT_DEBUG_GENERIC_COMMAND_DUMP_USER_DB_SUMMARY, + CNAT_DEBUG_DUMP_6RD_STATS, + CNAT_DEBUG_TIMEOUT_DB_SUMMARY, + CNAT_NAT64_STFUL_DEBUG_COMMAND, + CNAT_DEBUG_SET_BULK_SIZE, + CNAT_DEBUG_SHOW_BULK_STAT, + CNAT_DEBUG_CLEAR_BULK_STAT, + CNAT_DEBUG_SHOW_BULK_ALLOC, + CNAT_DEBUG_NAT64, + CNAT_DEBUG_NAT44_IN2OUT_FRAG_STATS, +} cnat_debug_dump_type_t; + +typedef enum { + CNAT_DEBUG_FLAG_UDP_INSIDE_CHECKSUM_MODIFY, + CNAT_DEBUG_FLAG_UDP_OUTSIDE_CHECKSUM_MODIFY, + CNAT_DEBUG_FLAG_UDP_INSIDE_PACKET_DUMP, + CNAT_DEBUG_FLAG_UDP_OUTSIDE_PACKET_DUMP, +} cnat_debug_flag_type_t; + +typedef struct { + u16 spp_msg_id; + u8 rc; + u8 core; + u32 num_bytes; + u8 raw_data[0]; +} cnat_generic_command_resp; + +extern u32 db_free_entry (void * p); +#endif /*__CNAT_SHOW_RESPONSE_H__*/ diff --git a/plugins/vcgn-plugin/vcgn/cnat_syslog.c b/plugins/vcgn-plugin/vcgn/cnat_syslog.c new file mode 100644 index 00000000..91758f14 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_syslog.c @@ -0,0 +1,1787 @@ +/* + *------------------------------------------------------------------ + * cnat_syslog.c + * + * Copyright (c) 2011-2013 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ + +#include <arpa/inet.h> +#include "cnat_syslog.h" +#include "platform_common.h" +#include "cnat_db.h" +#include "cnat_log_common.h" +#include <vppinfra/pool.h> + +#define SYSLOG_DELIMITER ' ' +#define SYSLOG_FIELD_ABSENT '-' +/* #define SHOW_SYSLOG_TIMESTAMP 1 TO DO. Remove this later */ +/* + * Defining the below macro here for now. Assumption is, syslog packets + * are sent out via same channel as that of NFV9. + * Has to be overridden if this assumption is false. + */ +#define PLATFORM_SYSLOG_DISP_NODE_IDX PLATFORM_NFV9_DISP_NODE_IDX + +cnat_syslog_global_info_t cnat_syslog_global_info; +cnat_syslog_logging_info_t *cnat_syslog_logging_info_pool; +cnat_syslog_global_counters_t cnat_syslog_global_counter; +extern u32 syslog_debug_flag; + +#define CNAT_SYSLOG_DEBUG_CODE 2 + +#if CNAT_SYSLOG_DEBUG_CODE > 3 +#define SYSLOG_COND if(my_instance_number == 0) + +#define SYSLOG_DEBUG_PRINTF1(a) SYSLOG_COND printf(a); +#define SYSLOG_DEBUG_PRINTF2(a, b) SYSLOG_COND printf(a, b); +#define SYSLOG_DEBUG_PRINTF3(a, b, c) SYSLOG_COND printf(a, b, c); +#define SYSLOG_DEBUG_PRINTF4(a, b, c, d) SYSLOG_COND printf(a, b, c, d); + +#else + +#define SYSLOG_DEBUG_PRINTF1(a) +#define SYSLOG_DEBUG_PRINTF2(a, b) +#define SYSLOG_DEBUG_PRINTF3(a, b, c) +#define SYSLOG_DEBUG_PRINTF4(a, b, c, d) + +#endif + + +void syslog_params_show(u32 logging_index) +{ + cnat_syslog_logging_info_t *log_info __attribute__((unused)); + if(logging_index == EMPTY) { + PLATFORM_DEBUG_PRINT("\nSyslog logging not configured\n"); + return; + } + + log_info = cnat_syslog_logging_info_pool + logging_index; + + PLATFORM_DEBUG_PRINT("\nSyslog parameters --\n"); + PLATFORM_DEBUG_PRINT("IPV4 address: %x, port %d, max log size %d\n", + log_info->ipv4_address, + log_info->port, log_info->max_length_minus_max_record_size); + PLATFORM_DEBUG_PRINT("Host name: %s, priority %d", + log_info->header_hostname, log_info->header_priority); + +} + +/* Util function to copy a number as ASCII in to a buf in a + * faster way (should be faster than sprintf) + */ + +const unsigned char ascii_numbers[][3] = + { {'0', '0', '0'}, + {'1', '0', '0'}, + {'2', '0', '0'}, + {'3', '0', '0'}, + {'4', '0', '0'}, + {'5', '0', '0'}, + {'6', '0', '0'}, + {'7', '0', '0'}, + {'8', '0', '0'}, + {'9', '0', '0'}, + {'1', '0', '0'}, + {'1', '1', '0'}, + {'1', '2', '0'}, + {'1', '3', '0'}, + {'1', '4', '0'}, + {'1', '5', '0'}, + {'1', '6', '0'}, + {'1', '7', '0'}, + {'1', '8', '0'}, + {'1', '9', '0'}, + {'2', '0', '0'}, + {'2', '1', '0'}, + {'2', '2', '0'}, + {'2', '3', '0'}, + {'2', '4', '0'}, + {'2', '5', '0'}, + {'2', '6', '0'}, + {'2', '7', '0'}, + {'2', '8', '0'}, + {'2', '9', '0'}, + {'3', '0', '0'}, + {'3', '1', '0'}, + {'3', '2', '0'}, + {'3', '3', '0'}, + {'3', '4', '0'}, + {'3', '5', '0'}, + {'3', '6', '0'}, + {'3', '7', '0'}, + {'3', '8', '0'}, + {'3', '9', '0'}, + {'4', '0', '0'}, + {'4', '1', '0'}, + {'4', '2', '0'}, + {'4', '3', '0'}, + {'4', '4', '0'}, + {'4', '5', '0'}, + {'4', '6', '0'}, + {'4', '7', '0'}, + {'4', '8', '0'}, + {'4', '9', '0'}, + {'5', '0', '0'}, + {'5', '1', '0'}, + {'5', '2', '0'}, + {'5', '3', '0'}, + {'5', '4', '0'}, + {'5', '5', '0'}, + {'5', '6', '0'}, + {'5', '7', '0'}, + {'5', '8', '0'}, + {'5', '9', '0'}, + {'6', '0', '0'}, + {'6', '1', '0'}, + {'6', '2', '0'}, + {'6', '3', '0'}, + {'6', '4', '0'}, + {'6', '5', '0'}, + {'6', '6', '0'}, + {'6', '7', '0'}, + {'6', '8', '0'}, + {'6', '9', '0'}, + {'7', '0', '0'}, + {'7', '1', '0'}, + {'7', '2', '0'}, + {'7', '3', '0'}, + {'7', '4', '0'}, + {'7', '5', '0'}, + {'7', '6', '0'}, + {'7', '7', '0'}, + {'7', '8', '0'}, + {'7', '9', '0'}, + {'8', '0', '0'}, + {'8', '1', '0'}, + {'8', '2', '0'}, + {'8', '3', '0'}, + {'8', '4', '0'}, + {'8', '5', '0'}, + {'8', '6', '0'}, + {'8', '7', '0'}, + {'8', '8', '0'}, + {'8', '9', '0'}, + {'9', '0', '0'}, + {'9', '1', '0'}, + {'9', '2', '0'}, + {'9', '3', '0'}, + {'9', '4', '0'}, + {'9', '5', '0'}, + {'9', '6', '0'}, + {'9', '7', '0'}, + {'9', '8', '0'}, + {'9', '9', '0'}, + {'1', '0', '0'}, + {'1', '0', '1'}, + {'1', '0', '2'}, + {'1', '0', '3'}, + {'1', '0', '4'}, + {'1', '0', '5'}, + {'1', '0', '6'}, + {'1', '0', '7'}, + {'1', '0', '8'}, + {'1', '0', '9'}, + {'1', '1', '0'}, + {'1', '1', '1'}, + {'1', '1', '2'}, + {'1', '1', '3'}, + {'1', '1', '4'}, + {'1', '1', '5'}, + {'1', '1', '6'}, + {'1', '1', '7'}, + {'1', '1', '8'}, + {'1', '1', '9'}, + {'1', '2', '0'}, + {'1', '2', '1'}, + {'1', '2', '2'}, + {'1', '2', '3'}, + {'1', '2', '4'}, + {'1', '2', '5'}, + {'1', '2', '6'}, + {'1', '2', '7'}, + {'1', '2', '8'}, + {'1', '2', '9'}, + {'1', '3', '0'}, + {'1', '3', '1'}, + {'1', '3', '2'}, + {'1', '3', '3'}, + {'1', '3', '4'}, + {'1', '3', '5'}, + {'1', '3', '6'}, + {'1', '3', '7'}, + {'1', '3', '8'}, + {'1', '3', '9'}, + {'1', '4', '0'}, + {'1', '4', '1'}, + {'1', '4', '2'}, + {'1', '4', '3'}, + {'1', '4', '4'}, + {'1', '4', '5'}, + {'1', '4', '6'}, + {'1', '4', '7'}, + {'1', '4', '8'}, + {'1', '4', '9'}, + {'1', '5', '0'}, + {'1', '5', '1'}, + {'1', '5', '2'}, + {'1', '5', '3'}, + {'1', '5', '4'}, + {'1', '5', '5'}, + {'1', '5', '6'}, + {'1', '5', '7'}, + {'1', '5', '8'}, + {'1', '5', '9'}, + {'1', '6', '0'}, + {'1', '6', '1'}, + {'1', '6', '2'}, + {'1', '6', '3'}, + {'1', '6', '4'}, + {'1', '6', '5'}, + {'1', '6', '6'}, + {'1', '6', '7'}, + {'1', '6', '8'}, + {'1', '6', '9'}, + {'1', '7', '0'}, + {'1', '7', '1'}, + {'1', '7', '2'}, + {'1', '7', '3'}, + {'1', '7', '4'}, + {'1', '7', '5'}, + {'1', '7', '6'}, + {'1', '7', '7'}, + {'1', '7', '8'}, + {'1', '7', '9'}, + {'1', '8', '0'}, + {'1', '8', '1'}, + {'1', '8', '2'}, + {'1', '8', '3'}, + {'1', '8', '4'}, + {'1', '8', '5'}, + {'1', '8', '6'}, + {'1', '8', '7'}, + {'1', '8', '8'}, + {'1', '8', '9'}, + {'1', '9', '0'}, + {'1', '9', '1'}, + {'1', '9', '2'}, + {'1', '9', '3'}, + {'1', '9', '4'}, + {'1', '9', '5'}, + {'1', '9', '6'}, + {'1', '9', '7'}, + {'1', '9', '8'}, + {'1', '9', '9'}, + {'2', '0', '0'}, + {'2', '0', '1'}, + {'2', '0', '2'}, + {'2', '0', '3'}, + {'2', '0', '4'}, + {'2', '0', '5'}, + {'2', '0', '6'}, + {'2', '0', '7'}, + {'2', '0', '8'}, + {'2', '0', '9'}, + {'2', '1', '0'}, + {'2', '1', '1'}, + {'2', '1', '2'}, + {'2', '1', '3'}, + {'2', '1', '4'}, + {'2', '1', '5'}, + {'2', '1', '6'}, + {'2', '1', '7'}, + {'2', '1', '8'}, + {'2', '1', '9'}, + {'2', '2', '0'}, + {'2', '2', '1'}, + {'2', '2', '2'}, + {'2', '2', '3'}, + {'2', '2', '4'}, + {'2', '2', '5'}, + {'2', '2', '6'}, + {'2', '2', '7'}, + {'2', '2', '8'}, + {'2', '2', '9'}, + {'2', '3', '0'}, + {'2', '3', '1'}, + {'2', '3', '2'}, + {'2', '3', '3'}, + {'2', '3', '4'}, + {'2', '3', '5'}, + {'2', '3', '6'}, + {'2', '3', '7'}, + {'2', '3', '8'}, + {'2', '3', '9'}, + {'2', '4', '0'}, + {'2', '4', '1'}, + {'2', '4', '2'}, + {'2', '4', '3'}, + {'2', '4', '4'}, + {'2', '4', '5'}, + {'2', '4', '6'}, + {'2', '4', '7'}, + {'2', '4', '8'}, + {'2', '4', '9'}, + {'2', '5', '0'}, + {'2', '5', '1'}, + {'2', '5', '2'}, + {'2', '5', '3'}, + {'2', '5', '4'}, + {'2', '5', '5'} + }; + +inline static int +byte_to_ascii_decimal_unaligned( + unsigned char *ptr, unsigned char num) +{ + *ptr++ = ascii_numbers[num][0]; + if(PREDICT_FALSE(num < 10)) { + return 1; + } + *ptr++ = ascii_numbers[num][1]; + if(PREDICT_FALSE(num < 100)) { + return 2; + } + *ptr++ = ascii_numbers[num][2]; + return 3; +} + +/* Copies the dotted decimal format of ipv4 + * in to the space provided and + * returns the number of bytes copied + */ +inline static int __attribute__((unused)) +copy_ipv4_addr(unsigned char *ptr, u32 ipv4) +{ + unsigned char *temp = ptr; + temp += byte_to_ascii_decimal_unaligned(temp, (ipv4 >> 24)); + *temp++ = '.'; + temp += byte_to_ascii_decimal_unaligned(temp, ((ipv4 >> 16) & 0xFF)); + *temp++ = '.'; + temp += byte_to_ascii_decimal_unaligned(temp, ((ipv4 >> 8) & 0xFF)); + *temp++ = '.'; + temp += byte_to_ascii_decimal_unaligned(temp, (ipv4 & 0xFF)); + + return (temp - ptr); +} + +#ifdef TOBE_PORTED +/* + * edt: * * cnat_syslog_fill_ip_header + * + * Tries to fill the fields of the IP header before it + * is sent to the L3 infra node. + * + * Argument: cnat_syslog_logging_info_t *logging_info + * structure that contains the packet context + */ +inline +void cnat_syslog_fill_ip_header (cnat_syslog_logging_info_t *logging_info) +{ + spp_ctx_t *ctx; + + /* + * Fill in the IP header and port number of the Netflow collector + * The L3 Infra node will fill in the rest of the fields + */ + ctx = logging_info->current_logging_context; + fill_ip_n_udp_hdr(ctx, logging_info->ipv4_address, + logging_info->port, logging_info->pkt_length); + +} +#else +inline +void cnat_syslog_fill_ip_header (cnat_syslog_logging_info_t *logging_info) +{ + return; +} +#endif + +#ifndef TOBE_PORTED +void cnat_syslog_logging_init() +{ + return; +} + +void cnat_syslog_log_mapping_create(cnat_main_db_entry_t * db, + cnat_vrfmap_t *vrfmap) +{ + return; +} + +void cnat_syslog_log_mapping_delete(cnat_main_db_entry_t * db, + cnat_vrfmap_t *vrfmap) +{ + return; +} + +void cnat_syslog_ds_lite_port_limit_exceeded( + dslite_key_t * key, + dslite_table_entry_t *dslite_entry) +{ + return; +} + +void cnat_syslog_nat44_mapping_create(cnat_main_db_entry_t *db, + cnat_vrfmap_t *vrfmap, cnat_session_entry_t * sdb +#ifndef NO_BULK_LOGGING + , int bulk_alloc +#endif + ) +{ + return; +} + +/* Following are in cnat_util.c which are not ported */ +/* This function is defined in cnat_util.c which need to be ported */ +cnat_icmp_msg_t icmp_msg_gen_allowed () +{ + return 1; +} + +void cnat_syslog_nat44_mapping_delete(cnat_main_db_entry_t *db, + cnat_vrfmap_t *vrfmap, cnat_session_entry_t *sdb +#ifndef NO_BULK_LOGGING + , int bulk_alloc +#endif + ) +{ + return; +} + +u32 +cnat_get_unix_time_in_seconds (void) +{ + return 0; +} +#else /* TOBE_PORTED */ +void +cnat_syslog_dump_logging_context (u32 value1, + cnat_syslog_logging_info_t *logging_info, + u32 value2) +{ + u8 *pkt_ptr; + u32 i; + + if (PREDICT_TRUE(syslog_debug_flag == 0)) { + return; + } + /* + * Reduce the logging to few cores, to enable easier debugging + */ + if ((my_instance_number & 0x7) != 0) { + return; + } + printf("\nDumping %s packet at locn %d: time 0x%x", + (value2 == 1) ? "CURRENT" : "QUEUED", + value1, + cnat_get_unix_time_in_seconds()); + + printf("\ni_vrf 0x%x, ip_address 0x%x, port %d, pkt len %d", + 0 /* TO DP Add vrf like nfv9_logging_info->i_vrf */, + logging_info->ipv4_address, + logging_info->port, + logging_info->pkt_length); + printf("\n"); + + if (value2 == 1) { + pkt_ptr = logging_info->current_logging_context->packet_data; + } else { + pkt_ptr = logging_info->queued_logging_context->packet_data; + } + + /* + * Dump along with 8 bytes of SHIM header + */ + for (i = 0; i < + (logging_info->pkt_length + CNAT_NFV9_IP_HDR_OFFSET); + i = i + 1) { + u8 c1, c2, c3; + + if (i == 0) { + printf("\nL2_HEADER + SHIM_HEADER: \n"); + } else if (i == CNAT_NFV9_IP_HDR_OFFSET) { + printf("\nIP_HEADER: \n"); + } else if (i == CNAT_NFV9_UDP_HDR_OFFSET) { + printf("\nUDP_HEADER: \n"); + } else if (i == CNAT_NFV9_HDR_OFFSET) { + printf("\nSyslog content..\n"); + while(i < + (logging_info->pkt_length + CNAT_NFV9_HDR_OFFSET)) { + printf("%c", (u8)(*(pkt_ptr + i))); + i++; + if((u8)(*(pkt_ptr + i)) == '[') /* new record begins */ + printf("\n"); + } + return; + } + + c3 = *(pkt_ptr + i); + c2 = c3 & 0xf; + c1 = (c3 >> 4) & 0xf; + + printf("%c%c ", + ((c1 <= 9) ? (c1 + '0') : (c1 - 10 + 'a')), + ((c2 <= 9) ? (c2 + '0') : (c2 - 10 + 'a'))); + + } + + printf("\n"); +} + + +/* + * edt: * * cnat_syslog_send_pkt + * + * Tries to send a logging pkt. If the packet cannot be sent + * because of rewrite_output node cannot process it, queue + * it temporarily and try to send it later. + * + * Argument: cnat_syslog_logging_info_t *logging_info + * structure that contains the packet context + */ +inline +void cnat_syslog_send_pkt (cnat_syslog_logging_info_t *logging_info) +{ + spp_node_t *output_node; + + cnat_syslog_fill_ip_header(logging_info); + + output_node = spp_get_nodes() + + cnat_syslog_global_info.cnat_syslog_disp_node_index; + + cnat_syslog_dump_logging_context (2, logging_info, 1); + + if (PREDICT_TRUE(output_node->sf.nused < SPP_MAXDISPATCH)) { + /* + * Move the logging context to output node + */ + logging_info->current_logging_context->current_length = + logging_info->pkt_length; + PLATFORM_SET_CTX_RU_TX_FROM_NODE(logging_info->current_logging_context, \ + NODE_LOGGING); + spp_dispatch_make_node_runnable(output_node); + output_node->sf.ctxs[output_node->sf.nused++] = + logging_info->current_logging_context; + + if(PREDICT_FALSE(syslog_debug_flag > 10)) + printf("\nSyslog: 2. Sending Current packet\n"); + } else { + /* + * Queue the context into the logging_info structure, + * We will try to send it later. Currently, we will + * restrict to only one context queued. + */ + cnat_syslog_global_counter.downstream_constipation_count++; + if(PREDICT_FALSE(syslog_debug_flag > 10)) + printf("\nSyslog: 2. Downstream congestion \n"); + + /* + * Attach the current logging context which is full to the + * queued context list in logging_info structure + */ + logging_info->queued_logging_context = + logging_info->current_logging_context; + } + + /* + * Whether the context is queued or not, set the current context index + * to EMPTY, as the earlier context can no more be used to send + * more logging records. + */ + logging_info->current_logging_context = NULL; +} + + +/* + * edt: * * cnat_syslog_send_queued_pkt + * + * Tries to send a logging pkt that has been queued earlier + * because it could not be sent due to downstream constipation + * + * Argument: cnat_syslog_logging_info_t *logging_info + * structure that contains the packet context + */ +inline +void cnat_syslog_send_queued_pkt (cnat_syslog_logging_info_t *logging_info) +{ + spp_node_t *output_node; + + output_node = spp_get_nodes() + + cnat_syslog_global_info.cnat_syslog_disp_node_index; + + cnat_syslog_dump_logging_context(1, logging_info, 2); + + if(PREDICT_TRUE(output_node->sf.nused < SPP_MAXDISPATCH)) { + /* + * Move the logging context to output node + */ + /** This looks like a bug to me .. need to confirm ***** + logging_info->queued_logging_context->current_length = + nfv9_logging_info->pkt_length; ***/ + PLATFORM_SET_CTX_RU_TX_FROM_NODE(logging_info->queued_logging_context, + NODE_LOGGING) + spp_dispatch_make_node_runnable(output_node); + output_node->sf.ctxs[output_node->sf.nused++] = + logging_info->queued_logging_context; + + SYSLOG_DEBUG_PRINTF1("\nSYSLOG: 1. Sending Queued packet\n") + + /* + * Context has been queued, it will be freed after the pkt + * is sent. Clear this from the logging_context_info structure + */ + logging_info->queued_logging_context = NULL; + + } else { + cnat_syslog_global_counter.downstream_constipation_count++; + } +} + +/* + * edt: * * handle_pending_syslog_pkts + * + * Timer handler for sending any pending syslog record + * + */ +inline +void handle_pending_syslog_pkts() +{ + spp_node_t *output_node; + cnat_syslog_logging_info_t *my_logging_info = 0; + u32 current_timestamp = cnat_get_sys_up_time_in_ms(); + i16 sf_nused; + + output_node = spp_get_nodes() + + cnat_syslog_global_info.cnat_syslog_disp_node_index; + + sf_nused = output_node->sf.nused; + + pool_foreach (my_logging_info, cnat_syslog_logging_info_pool, ({ + /* + * Check if no more logging contexts can be queued + */ + if (PREDICT_FALSE(sf_nused >= SPP_MAXDISPATCH)) { + break; + } + if (my_logging_info->queued_logging_context) + cnat_syslog_send_queued_pkt (my_logging_info); + + if(my_logging_info->current_logging_context && + ((current_timestamp - + my_logging_info->current_logging_context_timestamp) + > 1000)) { + /* + * If there is a current logging context and timestamp + * indicates it is pending for long, send it out + * Also if there is a queued context send it out as well + */ + SYSLOG_DEBUG_PRINTF4("\nLOG_TIMER: queued %p, curr %p, sf_nused %d", + my_logging_info->queued_logging_context, + my_logging_info->current_logging_context, + sf_nused); + cnat_syslog_send_pkt(my_logging_info); + } + })); +} + +const unsigned char hex_numbers_single_digit[] = + { '0', '1', '2', '3', '4', '5', '6', '7', '8', + '9', 'a', 'b', 'c', 'd', 'e', 'f' }; + +inline static int u16_to_ascii_decimal_aligned( + unsigned char *ptr, u16 num, u16 min_digits) +{ + /* The logic below is replicated in + * function u16_to_ascii_decimal_unaligned + * except the use of min_digits + * Replication is done to optimize run time + * if you fix a bug here, check u16_to_ascii_decimal_unaligned + * as well (and vice versa) + */ + unsigned char *temp = ptr; + int no_leading_zeros = 0; + + if(num > 9999 || min_digits == 5) { + *temp++ = hex_numbers_single_digit[num/10000]; + num = num%10000; + no_leading_zeros = 1; + } + + if(no_leading_zeros || num > 999 || min_digits == 4) { + *temp++ = hex_numbers_single_digit[num/1000]; + num = num%1000; + no_leading_zeros = 1; + } + + if(no_leading_zeros || num > 99 || min_digits == 3) { + *temp++ = hex_numbers_single_digit[num/100]; + num = num%100; + no_leading_zeros = 1; + } + + if(no_leading_zeros || num > 9 || min_digits == 2) { + *temp++ = hex_numbers_single_digit[num/10]; + num = num%10; + } + + *temp++ = hex_numbers_single_digit[num]; + + return temp-ptr; +} + +inline static int u16_to_ascii_decimal_unaligned( + unsigned char *ptr, u16 num) +{ + /* + * return u16_to_ascii_decimal_aligned(ptr, num, 0); + * should do the job.. however, to opimize the run time + * the code of u16_to_ascii_decimal_aligned is being + * repeated here without the use of min_digits + * if you fix a bug here, please check + * u16_to_ascii_decimal_aligned as well (and vice versa) + */ + unsigned char *temp = ptr; + int no_leading_zeros = 0; + + if(num > 9999) { + *temp++ = hex_numbers_single_digit[num/10000]; + num = num%10000; + no_leading_zeros = 1; + } + + if(no_leading_zeros || num > 999) { + *temp++ = hex_numbers_single_digit[num/1000]; + num = num%1000; + no_leading_zeros = 1; + } + + if(no_leading_zeros || num > 99) { + *temp++ = hex_numbers_single_digit[num/100]; + num = num%100; + no_leading_zeros = 1; + } + + if(no_leading_zeros || num > 9) { + *temp++ = hex_numbers_single_digit[num/10]; + num = num%10; + } + + *temp++ = hex_numbers_single_digit[num]; + + return temp-ptr; +} + +static int syslog_get_timestamp(unsigned char *ts) +{ + static const char *months[] = {"Jan ", "Feb ", "Mar ", "Apr ", "May ", + "Jun ", "Jul ", "Aug ", "Sep ", "Oct ", "Nov ", "Dec " }; + + unsigned char *temp = ts; + /* Inserts time stamp in the syslog format and returns lenght + * assumes that ts has sufficient space + */ + /* China Telecom has demanded that the time stamp has to be + * in the format '2011 Jun 7 12:34:08' + */ + time_t time = (time_t)cnat_get_unix_time_in_seconds(); + struct tm tm1; + + gmtime_r(&time, &tm1); + /* Now put the pieces together */ + /* Year */ + ts += u16_to_ascii_decimal_unaligned(ts, (tm1.tm_year + 1900)); + *ts++ = SYSLOG_DELIMITER; + /* Month */ + clib_memcpy(ts, months[tm1.tm_mon], 4); + ts += 4; /* DELIMITER taken care */ + /* day */ + ts += u16_to_ascii_decimal_unaligned(ts, tm1.tm_mday); + *ts++ = SYSLOG_DELIMITER; + /* hours */ + ts += u16_to_ascii_decimal_aligned(ts, tm1.tm_hour, 2); + *ts++ = ':'; + /* minutes */ + ts += u16_to_ascii_decimal_aligned(ts, tm1.tm_min, 2); + *ts++ = ':'; + /* seconds */ + ts += u16_to_ascii_decimal_aligned(ts, tm1.tm_sec, 2); + return ts - temp; +} + +/* Ensure that the order of the below array matches with + * syslog_service_type enum + */ +static char *syslog_service_string[] = { "NAT44", "DSLITE" }; + +/* Ensure that the order of below array matches with + * syslog_event_type_t enum + */ +typedef struct { + char *event_name; + int name_length; +} syslog_event_description_type; + +const static syslog_event_description_type sys_log_event[] = { + { "UserbasedA", 10 }, /* yes, 10 is strlen of "UserbasedA" */ + { "UserbasedW", 10 }, + { "SessionbasedA", 13 }, + { "SessionbasedW", 13 }, + { "SessionbasedAD", 14 }, + { "SessionbasedWD", 14 }, + { "Portblockrunout", 15 }, + { "TCPseqmismatch", 14}, + { "Invalid", 7 } +}; + +inline static int syslog_fill_header(const cnat_syslog_logging_info_t *log_info, + syslog_service_type_t s_type) +{ + /* Forms the syslog header and returns the lenght + * Assumes that header has sufficient space + */ + + /* Sample header (as agreed for China Telecom requirements -- + * <134> 1 2011 May 31 10:30:45 192.168.2.3 - - NAT44 - + */ + + unsigned char *temp, *header; + int count; + temp = header = (unsigned char *) + &(log_info->current_logging_context->packet_data[CNAT_NFV9_HDR_OFFSET]); + *temp++ = '<'; + temp += byte_to_ascii_decimal_unaligned(temp, + log_info->header_priority); + *temp++ = '>'; + *temp++ = SYSLOG_DELIMITER; + *temp++ = '1'; /* Syslog version -- always set to 1 */ + *temp++ = SYSLOG_DELIMITER; + temp += syslog_get_timestamp(temp); + *temp++ = SYSLOG_DELIMITER; + count = strlen(log_info->header_hostname); + clib_memcpy(temp, log_info->header_hostname, count); + temp += count; + *temp++ = SYSLOG_DELIMITER; + *temp++ = SYSLOG_FIELD_ABSENT; /* App name - nil value */ + *temp++ = SYSLOG_DELIMITER; + *temp++ = SYSLOG_FIELD_ABSENT; /* Proc ID - nil value for now */ + *temp++ = SYSLOG_DELIMITER; + /* Now the msg id */ + count = strlen(syslog_service_string[s_type]); + clib_memcpy(temp, syslog_service_string[s_type], count); + temp += count; + *temp++ = SYSLOG_DELIMITER; + *temp++ = SYSLOG_FIELD_ABSENT; /* No structured elements */ + *temp++ = SYSLOG_DELIMITER; +#ifdef SHOW_SYSLOG_TIMESTAMP + printf("\nSysLog TS: %s : Length %d", header, temp - header); +#endif /* SHOW_SYSLOG_TIMESTAMP */ + return temp-header; +} + +extern void cnat_logging_init(); + +/* one time call at the beginning */ +void cnat_syslog_logging_init() +{ + if(PREDICT_TRUE(cnat_syslog_global_info.cnat_syslog_init_done)) + return; /* Already done */ + + cnat_logging_init(); + cnat_syslog_global_info.cnat_syslog_disp_node_index = + spp_lookup_node_index(PLATFORM_SYSLOG_DISP_NODE_IDX); + ASSERT(cnat_syslog_global_info.cnat_syslog_disp_node_index != (u16)~0); + + cnat_syslog_global_info.cnat_syslog_init_done = 1; +} + +/* + * edt: * * cnat_syslog_create_logging_context + * + * Tries to create a logging context with packet buffer + * to send a new logging packet + * + * Argument: cnat_syslog_logging_info_t *logging_info + * structure that contains the logging info and will store + * the packet context as well. + */ +inline +void cnat_syslog_create_logging_context ( + cnat_syslog_logging_info_t *logging_info, + syslog_service_type_t s_type) +{ + spp_ctx_t *ctx; + + /* + * If queued_logging_context_index is non-EMPTY, we already have a logging + * packet queued to be sent. First try sending this before allocating + * a new context. We can have only one active packet context per + * logging_info structure + */ + + if (PREDICT_FALSE(logging_info->queued_logging_context != NULL)) { + cnat_syslog_send_queued_pkt(logging_info); + /* + * If we cannot still send the queued pkt, just return + * Downstream Constipation count would have increased anyway + */ + if (logging_info->queued_logging_context != NULL) { + cnat_syslog_global_counter.logging_context_creation_deferred_count++; + return; + } + } + + /* + * If no context can be allocated, return silently + * calling routine will handle updating the error counters + */ + if (spp_ctx_alloc(&ctx, 1) < 1) { + cnat_syslog_global_counter.logging_context_creation_fail_count++; + SYSLOG_DEBUG_PRINTF1("\nCould not allocate ctx for syslog"); + return; + } + + // Allocate packet buffer (used for AVSM currently) + PLATFORM_ALLOC_NFV9_PKT_BUFFER(ctx, 0); + + logging_info->current_logging_context = ctx; + + PLATFORM_SET_CTX_RU_TX_FROM_NODE(ctx, NODE_LOGGING); + + ctx->flags = SPP_CTX_END_OF_PACKET; + ctx->next_ctx_this_packet = (spp_ctx_t*) SPP_CTX_NO_NEXT_CTX; + ctx->current_header = &ctx->packet_data[CNAT_NFV9_HDR_OFFSET]; + + logging_info->pkt_length = syslog_fill_header(logging_info, s_type); + logging_info->pkt_length += (CNAT_NFV9_HDR_OFFSET - + CNAT_NFV9_IP_HDR_OFFSET); + logging_info->current_logging_context_timestamp = + cnat_get_sys_up_time_in_ms(); + +} + +inline static int u16_to_ascii_hex_unaligned( + unsigned char *ptr, u16 num) +{ + unsigned char nibble, *temp; + int no_leading_zeros = 0; + temp = ptr; + nibble = (num >> 12); + if(nibble) { + *temp++ = hex_numbers_single_digit[nibble]; + no_leading_zeros = 1; + } + + nibble = (num >> 8) & 0xF; + if(nibble || no_leading_zeros) { + *temp++ = hex_numbers_single_digit[nibble]; + no_leading_zeros = 1; + } + + nibble = (num >> 4) & 0xF; + if(nibble || no_leading_zeros) { + *temp++ = hex_numbers_single_digit[nibble]; + } + + *temp++ = hex_numbers_single_digit[num & 0xF]; + + return temp-ptr; +} + +inline static int ipv6_int_2_str(u32 ipv6[], unsigned char *ipv6_str) +{ +/* DC stands for Double Colon. + * Refer http://tools.ietf.org/html/rfc5952 for + * more details on text representations of + * IPV6 address + */ +#define DC_NOT_USED_YET 0 +#define DC_IN_USE 1 /* Zeros are skipped */ +#define DC_ALREADY_USED 2 /* Cannot skip zeros anymore */ + int i; + u16 *ipv6_temp = (u16 *)ipv6; + unsigned char *temp = ipv6_str; + int double_colon = DC_NOT_USED_YET; + for(i = 0; i < 7; i++) { + if(ipv6_temp[i]) { + ipv6_str += u16_to_ascii_hex_unaligned(ipv6_str, ipv6_temp[i]); + *ipv6_str++ = ':'; + if(double_colon == DC_IN_USE) { /* Cannot use DC anymore */ + double_colon = DC_ALREADY_USED; + } + } else { + if(double_colon == DC_IN_USE) { + /* Skip this zero as well */ + continue; + } else if((ipv6_temp[i+1]) + /* DC makes sense if there is more than one contiguous zero */ + || (double_colon != DC_NOT_USED_YET)) { + ipv6_str += u16_to_ascii_hex_unaligned(ipv6_str, + ipv6_temp[i]); + *ipv6_str++ = ':'; + } else { /* Start using DC */ + *ipv6_str++ = ':'; /* The 2nd colon */ + double_colon = DC_IN_USE; + } + } + } + if(ipv6_temp[7]) { + ipv6_str += u16_to_ascii_hex_unaligned(ipv6_str, ipv6_temp[7]); + } else if(double_colon != DC_IN_USE) { + *ipv6_str++ = '0'; + } + *ipv6_str = 0; + + return ipv6_str - temp; +} + +/* insert syslog record for nat44 */ + +void cnat_syslog_insert_nat44_record( + cnat_syslog_logging_info_t *log_info, + cnat_main_db_entry_t *db, cnat_vrfmap_t *vrfmap, + cnat_session_entry_t *sdb, int bulk_alloc, syslog_event_type_t e_type) +{ + /* This record should like this - + * [EventName <L4> <Original Source IP> <Inside VRF Name> + * <Original Source IPv6> < Translated Source IP> <Original Port> + * <Translated First Source Port> <Translated Last Source Port> + * <Destination ip address> <destination port>] + */ + u32 original_source = db->in2out_key.k.ipv4; + u32 translated_ip = db->out2in_key.k.ipv4; + cnat_user_db_entry_t *udb = cnat_user_db + db->user_index; + unsigned char *temp, *record; + u32 network_order_ipv6[4]; + + SYSLOG_CONFIG_DEBUG_PRINTF(4,"In Function %s\n", __func__); + temp = record = &(log_info->current_logging_context->packet_data[ + CNAT_NFV9_IP_HDR_OFFSET + log_info->pkt_length]); + + if (PREDICT_FALSE(!udb)) { + SYSLOG_DEBUG_PRINTF1("\nnull udb!"); + return; + } + + /* Now we point to the location where record needs to be inserted */ + *record++ = '['; /* Open the record */ + + /* Copy the record type */ + clib_memcpy(record, sys_log_event[e_type].event_name, + sys_log_event[e_type].name_length); + record += sys_log_event[e_type].name_length; + *record++ = SYSLOG_DELIMITER; + + /* Copy the Protocol type */ + if(PREDICT_FALSE( + e_type == sessionbased_assign || e_type == sessionbased_withdraw || + e_type == sessionbased_assignD || e_type == sessionbased_withdrawD)) { + u16 my_proto_mask; + my_proto_mask = db->in2out_key.k.vrf & CNAT_PRO_MASK; + if(PREDICT_TRUE(my_proto_mask == CNAT_TCP)) { + *record++ = '6'; + } else if(PREDICT_TRUE(my_proto_mask == CNAT_UDP)) { + *record++ = '1'; + *record++ = '7'; + } else if(PREDICT_TRUE(my_proto_mask == CNAT_ICMP)) { + *record++ = '1'; + } else { /* Default, assume GRE (for PPTP) */ + *record++ = '4'; + *record++ = '7'; + } + } else { + *record++ = SYSLOG_FIELD_ABSENT; + } + *record++ = SYSLOG_DELIMITER; + + /* Copy the Original Source IP */ + record += copy_ipv4_addr(record, original_source); + *record++ = SYSLOG_DELIMITER; + + /* copy configured VRF NAME */ + clib_memcpy(record, log_info->vrf_name, log_info->vrf_name_len); + record += log_info->vrf_name_len; + *record++ = SYSLOG_DELIMITER; + + /* No IPV6 source address for nat44 */ + *record++ = SYSLOG_FIELD_ABSENT; + *record++ = SYSLOG_DELIMITER; + + /* Copy the translated IP address */ + record += copy_ipv4_addr(record, translated_ip); + *record++ = SYSLOG_DELIMITER; + + /* Copy the Original port */ + if(e_type == sessionbased_assign || e_type == sessionbased_withdraw || + e_type == sessionbased_assignD || e_type == sessionbased_withdrawD) { + record += u16_to_ascii_decimal_unaligned( + record, db->in2out_key.k.port); + } else { + *record++ = SYSLOG_FIELD_ABSENT; + } + *record++ = SYSLOG_DELIMITER; + + /* Copy the start outside port */ + record += u16_to_ascii_decimal_unaligned(record, bulk_alloc); + *record++ = SYSLOG_DELIMITER; + + /* Copy the last outside port */ + if(e_type == userbased_assign || e_type == userbased_withdraw) { + record += u16_to_ascii_decimal_unaligned(record, + (bulk_alloc + BULKSIZE_FROM_VRFMAP(vrfmap) - 1)); + } else { + *record++ = SYSLOG_FIELD_ABSENT; + } + *record++ = SYSLOG_DELIMITER; + + /* Copy destination ip and port in case for DBL*/ + if(PREDICT_FALSE(e_type == sessionbased_assignD || e_type == sessionbased_withdrawD)) { + if(PREDICT_TRUE(sdb == NULL)) { + record += copy_ipv4_addr(record,db->dst_ipv4); + *record++ = SYSLOG_DELIMITER; + record += u16_to_ascii_decimal_unaligned(record, db->dst_port); + } else { + record += copy_ipv4_addr(record, sdb->v4_dest_key.k.ipv4); + *record++ = SYSLOG_DELIMITER; + record += u16_to_ascii_decimal_unaligned(record, sdb->v4_dest_key.k.port); + } + } else { + *record++ = '-'; + *record++ = SYSLOG_DELIMITER; + *record++ = '-'; + } + *record++ = SYSLOG_DELIMITER; + + *record++ = ']'; /* End of the reocrd */ + + log_info->pkt_length += record - temp; +} + +void cnat_syslog_insert_record( + cnat_syslog_logging_info_t *log_info, + cnat_main_db_entry_t *db, dslite_table_entry_t *dslite_entry, + cnat_session_entry_t *sdb, int bulk_alloc, syslog_event_type_t e_type) +{ + /* This record should like this - + * [EventName <L4> <Original Source IP> <Inside VRF Name> + * <Original Source IPv6> < Translated Source IP> <Original Port> + * <Translated First Source Port> <Translated Last Source Port> + * <Destination ip address> <destination port>] + */ + u32 original_source = db->in2out_key.k.ipv4; + u32 translated_ip = db->out2in_key.k.ipv4; + cnat_user_db_entry_t *udb = cnat_user_db + db->user_index; + unsigned char *temp, *record; + u32 network_order_ipv6[4]; + + temp = record = &(log_info->current_logging_context->packet_data[ + CNAT_NFV9_IP_HDR_OFFSET + log_info->pkt_length]); + + if (PREDICT_FALSE(!udb)) { + SYSLOG_DEBUG_PRINTF1("\nnull udb!"); + return; + } + + /* Now we point to the location where record needs to be inserted */ + *record++ = '['; /* Open the record */ + + /* Copy the record type */ + clib_memcpy(record, sys_log_event[e_type].event_name, + sys_log_event[e_type].name_length); + record += sys_log_event[e_type].name_length; + *record++ = SYSLOG_DELIMITER; + + /* Copy the Protocol type */ + if(PREDICT_FALSE( + e_type == sessionbased_assign || e_type == sessionbased_withdraw || + e_type == sessionbased_assignD || e_type == sessionbased_withdrawD)) { + u16 my_proto_mask; + my_proto_mask = db->in2out_key.k.vrf & CNAT_PRO_MASK; + if(PREDICT_TRUE(my_proto_mask == CNAT_TCP)) { + *record++ = '6'; + } else if(PREDICT_TRUE(my_proto_mask == CNAT_UDP)) { + *record++ = '1'; + *record++ = '7'; + } else { + *record++ = '1'; + } + } else { + *record++ = SYSLOG_FIELD_ABSENT; + } + + *record++ = SYSLOG_DELIMITER; + + /* Copy the Original Source IP */ +#ifdef DSLITE_USER_IPV4 + record += copy_ipv4_addr(record, original_source); +#else + /* + * Do not include inside ipv4 address for B4 element level port limiting + */ + *record++ = SYSLOG_FIELD_ABSENT; +#endif + *record++ = SYSLOG_DELIMITER; + + /* copy configured VRF NAME */ + clib_memcpy(record, log_info->vrf_name, log_info->vrf_name_len); + record += log_info->vrf_name_len; + *record++ = SYSLOG_DELIMITER; + + /* Copy the IPV6 source address */ + /* CSCtt16960 Fix. */ + network_order_ipv6[0] = htonl(udb->ipv6[0]); + network_order_ipv6[1] = htonl(udb->ipv6[1]); + network_order_ipv6[2] = htonl(udb->ipv6[2]); + network_order_ipv6[3] = htonl(udb->ipv6[3]); + + inet_ntop(AF_INET6,network_order_ipv6,record,INET6_ADDRSTRLEN); + record += strlen(record); + *record++ = SYSLOG_DELIMITER; + + /* Copy the translated IP address */ + record += copy_ipv4_addr(record, translated_ip); + *record++ = SYSLOG_DELIMITER; + + /* Copy the Original port */ + if(e_type == sessionbased_assign || e_type == sessionbased_withdraw || + e_type == sessionbased_assignD || e_type == sessionbased_withdrawD) { + record += u16_to_ascii_decimal_unaligned( + record, db->in2out_key.k.port); + } else { + *record++ = SYSLOG_FIELD_ABSENT; + } + *record++ = SYSLOG_DELIMITER; + + /* Copy the start outside port */ + record += u16_to_ascii_decimal_unaligned(record, bulk_alloc); + *record++ = SYSLOG_DELIMITER; + + /* Copy the last outside port */ + if(e_type == userbased_assign || e_type == userbased_withdraw) { + record += u16_to_ascii_decimal_unaligned(record, + (bulk_alloc + BULKSIZE_FROM_VRFMAP(dslite_entry) - 1)); + } else { + *record++ = SYSLOG_FIELD_ABSENT; + } + *record++ = SYSLOG_DELIMITER; + + if(PREDICT_FALSE(e_type == sessionbased_assignD || e_type == sessionbased_withdrawD)) { + if(sdb == NULL) { + record += copy_ipv4_addr(record, db->dst_ipv4); + *record++ = SYSLOG_DELIMITER; + record += u16_to_ascii_decimal_unaligned(record, db->dst_port); + } else { + record += copy_ipv4_addr(record, sdb->v4_dest_key.k.ipv4); + *record++ = SYSLOG_DELIMITER; + record += u16_to_ascii_decimal_unaligned(record, sdb->v4_dest_key.k.port); + } + } else { + *record++ = '-'; + *record++ = SYSLOG_DELIMITER; + *record++ = '-'; + } + *record++ = SYSLOG_DELIMITER; + + *record++ = ']'; /* End of the reocrd */ + + log_info->pkt_length += record - temp; +} + +#define SYSLOG_PRECHECK(entry, s_type) \ + if(PREDICT_FALSE((entry)->syslog_logging_index == EMPTY)) { \ + SYSLOG_DEBUG_PRINTF1("\n1. Log Mapping failed") \ + return; \ + } \ + logging_info = \ + cnat_syslog_logging_info_pool + (entry)->syslog_logging_index; \ + if(PREDICT_FALSE(logging_info->current_logging_context == NULL)) { \ + cnat_syslog_create_logging_context(logging_info, s_type); \ + if(PREDICT_FALSE(logging_info->current_logging_context == NULL)) { \ + SYSLOG_DEBUG_PRINTF1("\n2. Log Mapping failed") \ + return; \ + } \ + } + +void cnat_syslog_nat44_mapping_create(cnat_main_db_entry_t *db, + cnat_vrfmap_t *vrfmap, cnat_session_entry_t * sdb +#ifndef NO_BULK_LOGGING + , int bulk_alloc +#endif + ) +{ + cnat_syslog_logging_info_t *logging_info = 0; + syslog_event_type_t e_type; + int start_port; + + SYSLOG_CONFIG_DEBUG_PRINTF(4,"In Function %s\n", __func__); + SYSLOG_PRECHECK(vrfmap, NAT44) + +#ifndef NO_BULK_LOGGING + if(bulk_alloc > 0) { /* new bulk alloc - use bulk add template */ + e_type = userbased_assign; + start_port = bulk_alloc; + } else if(bulk_alloc == CACHE_ALLOC_NO_LOG_REQUIRED) { + return; /* No logging required.. bulk port usage */ + } + else { /* Individual logging .. fall back to old method */ +#endif + if(vrfmap->syslog_logging_policy == SESSION_LOG_ENABLE) { + e_type = sessionbased_assignD; + } else { + e_type = sessionbased_assign; + } + start_port = db->out2in_key.k.port; +#ifndef NO_BULK_LOGGING + } +#endif + + cnat_syslog_insert_nat44_record(logging_info, db, vrfmap, sdb, + start_port, e_type); + + /* + * If we have exceeded the packet length, let us send the + * packet now. There is buffer of additional bytes beyond + * max_pkt_length to ensure that the last add/delete record + * can be stored safely. + */ + + if (PREDICT_FALSE(logging_info->pkt_length > + logging_info->max_length_minus_max_record_size)) { + cnat_syslog_send_pkt(logging_info); + } +} + +void cnat_syslog_ds_lite_mapping_create(cnat_main_db_entry_t *db, + dslite_table_entry_t *dslite_entry, cnat_session_entry_t *sdb +#ifndef NO_BULK_LOGGING + , int bulk_alloc +#endif + ) +{ + cnat_syslog_logging_info_t *logging_info = 0; + syslog_event_type_t e_type; + int start_port; + + SYSLOG_PRECHECK(dslite_entry, DSLite) + +#ifndef NO_BULK_LOGGING + if(bulk_alloc > 0) { /* new bulk alloc - use bulk add template */ + e_type = userbased_assign; + start_port = bulk_alloc; + } else if(bulk_alloc == CACHE_ALLOC_NO_LOG_REQUIRED) { + return; /* No logging required.. bulk port usage */ + } + else { /* Individual logging .. fall back to old method */ +#endif + if(PREDICT_FALSE(dslite_entry->syslog_logging_policy == SESSION_LOG_ENABLE)) { + e_type = sessionbased_assignD; + } else { + e_type = sessionbased_assign; + } + start_port = db->out2in_key.k.port; +#ifndef NO_BULK_LOGGING + } +#endif + + cnat_syslog_insert_record(logging_info, db, dslite_entry, sdb, + start_port, e_type); + + /* + * If we have exceeded the packet length, let us send the + * packet now. There is buffer of additional bytes beyond + * max_pkt_length to ensure that the last add/delete record + * can be stored safely. + */ + + if (PREDICT_FALSE(logging_info->pkt_length > + logging_info->max_length_minus_max_record_size)) { + cnat_syslog_send_pkt(logging_info); + } +} + +void cnat_syslog_nat44_mapping_delete(cnat_main_db_entry_t *db, + cnat_vrfmap_t *vrfmap, cnat_session_entry_t *sdb +#ifndef NO_BULK_LOGGING + , int bulk_alloc +#endif + ) +{ + cnat_syslog_logging_info_t *logging_info = 0; + syslog_event_type_t e_type; + int start_port; + + SYSLOG_CONFIG_DEBUG_PRINTF(4,"In Function %s\n", __func__); + SYSLOG_PRECHECK(vrfmap, NAT44) + +#ifndef NO_BULK_LOGGING + if(bulk_alloc > 0) { /* new bulk alloc - use bulk add template */ + e_type = userbased_withdraw; + start_port = bulk_alloc; + } else if(bulk_alloc == CACHE_ALLOC_NO_LOG_REQUIRED) { + return; /* No logging required.. bulk port usage */ + } + else { /* Individual logging .. fall back to old method */ +#endif + if(vrfmap->syslog_logging_policy == SESSION_LOG_ENABLE) { + e_type = sessionbased_withdrawD; + } else { + e_type = sessionbased_withdraw; + } + start_port = db->out2in_key.k.port; +#ifndef NO_BULK_LOGGING + } +#endif + cnat_syslog_insert_nat44_record(logging_info, db, vrfmap, sdb, + start_port, e_type); + /* + * If we have exceeded the packet length, let us send the + * packet now. There is buffer of additional bytes beyond + * max_pkt_length to ensure that the last add/delete record + * can be stored safely. + */ + if (PREDICT_FALSE(logging_info->pkt_length > + logging_info->max_length_minus_max_record_size)) { + cnat_syslog_send_pkt(logging_info); + } +} + +void cnat_syslog_ds_lite_mapping_delete(cnat_main_db_entry_t *db, + dslite_table_entry_t *dslite_entry, cnat_session_entry_t *sdb +#ifndef NO_BULK_LOGGING + , int bulk_alloc +#endif + ) +{ + cnat_syslog_logging_info_t *logging_info = 0; + syslog_event_type_t e_type; + int start_port; + + SYSLOG_PRECHECK(dslite_entry, DSLite) + +#ifndef NO_BULK_LOGGING + if(bulk_alloc > 0) { /* new bulk alloc - use bulk add template */ + e_type = userbased_withdraw; + start_port = bulk_alloc; + } else if(bulk_alloc == CACHE_ALLOC_NO_LOG_REQUIRED) { + return; /* No logging required.. bulk port usage */ + } + else { /* Individual logging .. fall back to old method */ +#endif + if(PREDICT_FALSE(dslite_entry->syslog_logging_policy == SESSION_LOG_ENABLE)) { + e_type = sessionbased_withdrawD; + } else { + e_type = sessionbased_withdraw; + } + start_port = db->out2in_key.k.port; +#ifndef NO_BULK_LOGGING + } +#endif + cnat_syslog_insert_record(logging_info, db, dslite_entry, sdb, + start_port, e_type); + + /* + * If we have exceeded the packet length, let us send the + * packet now. There is buffer of additional bytes beyond + * max_pkt_length to ensure that the last add/delete record + * can be stored safely. + */ + + if (PREDICT_FALSE(logging_info->pkt_length > + logging_info->max_length_minus_max_record_size)) { + cnat_syslog_send_pkt(logging_info); + } +} + +void cnat_syslog_dslite_insert_port_exceeded( + cnat_syslog_logging_info_t *log_info, + dslite_key_t * key) +{ + /* This record should like this - + * [Portblockrunout <L4> <Original Source IP> <Inside VRF Name> + * <Original Source IPv6> - <Original Port> - - - -] + */ + u32 network_order_ipv6[4]; + unsigned char *temp, *record; + + temp = record = &(log_info->current_logging_context->packet_data[ + CNAT_NFV9_IP_HDR_OFFSET + log_info->pkt_length]); + + /* Now we point to the location where record needs to be inserted */ + *record++ = '['; /* Open the record */ + + /* Copy the record type */ + clib_memcpy(record, sys_log_event[port_block_runout].event_name, + sys_log_event[port_block_runout].name_length); + record += sys_log_event[port_block_runout].name_length; + *record++ = SYSLOG_DELIMITER; + + u16 my_proto_mask; + my_proto_mask = key->ipv4_key.k.vrf & CNAT_PRO_MASK; + if(PREDICT_TRUE(my_proto_mask == CNAT_TCP)) { + *record++ = '6'; + } else if(PREDICT_TRUE(my_proto_mask == CNAT_UDP)) { + *record++ = '1'; + *record++ = '7'; + } else { + *record++ = '1'; + } + *record++ = SYSLOG_DELIMITER; + + /* Copy the Original Source IP */ + record += copy_ipv4_addr(record, key->ipv4_key.k.ipv4); + *record++ = SYSLOG_DELIMITER; + + /* copy configured VRF NAME */ + clib_memcpy(record, log_info->vrf_name, log_info->vrf_name_len); + record += log_info->vrf_name_len; + *record++ = SYSLOG_DELIMITER; + + /* Copy the IPV6 source address */ + network_order_ipv6[0] = htonl(key->ipv6[0]); + network_order_ipv6[1] = htonl(key->ipv6[1]); + network_order_ipv6[2] = htonl(key->ipv6[2]); + network_order_ipv6[3] = htonl(key->ipv6[3]); + + inet_ntop(AF_INET6,network_order_ipv6,record,INET6_ADDRSTRLEN); + record += strlen(record); + *record++ = SYSLOG_DELIMITER; + + *record++ = SYSLOG_FIELD_ABSENT; /* No translated source ip */ + *record++ = SYSLOG_DELIMITER; + + record += u16_to_ascii_decimal_unaligned( + record, key->ipv4_key.k.port); + *record++ = SYSLOG_DELIMITER; + + *record++ = SYSLOG_FIELD_ABSENT; /* No translated start port */ + *record++ = SYSLOG_DELIMITER; + + *record++ = SYSLOG_FIELD_ABSENT; /* No translated end port */ + *record++ = SYSLOG_DELIMITER; + + /*No Destination Info*/ + *record++ = '-'; + *record++ = SYSLOG_DELIMITER; + *record++ = '-'; + *record++ = SYSLOG_DELIMITER; + + *record++ = ']'; /* End of the reocrd */ + + log_info->pkt_length += record - temp; +} + +void cnat_syslog_ds_lite_port_limit_exceeded( + dslite_key_t * key, + dslite_table_entry_t *dslite_entry) +{ + cnat_syslog_logging_info_t *logging_info = 0; + + SYSLOG_PRECHECK(dslite_entry, DSLite) + + cnat_syslog_dslite_insert_port_exceeded(logging_info, key); + + /* + * If we have exceeded the packet length, let us send the + * packet now. There is buffer of additional bytes beyond + * max_pkt_length to ensure that the last add/delete record + * can be stored safely. + */ + + if (PREDICT_FALSE(logging_info->pkt_length > + logging_info->max_length_minus_max_record_size)) { + cnat_syslog_send_pkt(logging_info); + } +} + +void cnat_syslog_nat44_insert_port_exceeded( + cnat_syslog_logging_info_t *log_info, + cnat_key_t * key) +{ + /* This record should like this - + * [Portblockrunout <L4> <Original Source IP> <Inside VRF Name> + * - - <Original Port> - - - -] + */ + unsigned char *temp, *record; + + temp = record = &(log_info->current_logging_context->packet_data[ + CNAT_NFV9_IP_HDR_OFFSET + log_info->pkt_length]); + + /* Now we point to the location where record needs to be inserted */ + *record++ = '['; /* Open the record */ + + /* Copy the record type */ + clib_memcpy(record, sys_log_event[port_block_runout].event_name, + sys_log_event[port_block_runout].name_length); + record += sys_log_event[port_block_runout].name_length; + *record++ = SYSLOG_DELIMITER; + + u16 my_proto_mask; + my_proto_mask = key->k.vrf & CNAT_PRO_MASK; + if(PREDICT_TRUE(my_proto_mask == CNAT_TCP)) { + *record++ = '6'; + } else if(PREDICT_TRUE(my_proto_mask == CNAT_UDP)) { + *record++ = '1'; + *record++ = '7'; + } else { + *record++ = '1'; + } + *record++ = SYSLOG_DELIMITER; + + /* Copy the Original Source IP */ + record += copy_ipv4_addr(record, key->k.ipv4); + *record++ = SYSLOG_DELIMITER; + + /* copy configured VRF NAME */ + clib_memcpy(record, log_info->vrf_name, log_info->vrf_name_len); + record += log_info->vrf_name_len; + *record++ = SYSLOG_DELIMITER; + + /* No IPV6 source address for nat44 */ + *record++ = '-'; + *record++ = SYSLOG_DELIMITER; + + *record++ = '-'; /* No translated source ip */ + *record++ = SYSLOG_DELIMITER; + + record += u16_to_ascii_decimal_unaligned( + record, key->k.port); + *record++ = SYSLOG_DELIMITER; + + *record++ = '-'; /* No translated start port */ + *record++ = SYSLOG_DELIMITER; + + *record++ = '-'; /* No translated end port */ + *record++ = SYSLOG_DELIMITER; + + /*No Destination Info*/ + *record++ = '-'; + *record++ = SYSLOG_DELIMITER; + *record++ = '-'; + *record++ = SYSLOG_DELIMITER; + + *record++ = ']'; /* End of the reocrd */ + + log_info->pkt_length += record - temp; +} + +void cnat_syslog_nat44_port_limit_exceeded( + cnat_key_t * key, + cnat_vrfmap_t *vrfmap) +{ + cnat_syslog_logging_info_t *logging_info = 0; + + SYSLOG_PRECHECK(vrfmap, NAT44) + + cnat_syslog_nat44_insert_port_exceeded(logging_info, key); + + /* + * If we have exceeded the packet length, let us send the + * packet now. There is buffer of additional bytes beyond + * max_pkt_length to ensure that the last add/delete record + * can be stored safely. + */ + + if (PREDICT_FALSE(logging_info->pkt_length > + logging_info->max_length_minus_max_record_size)) { + cnat_syslog_send_pkt(logging_info); + } +} + +void cnat_syslog_nat44_insert_tcp_seq_mismatch( + cnat_syslog_logging_info_t *log_info, + cnat_main_db_entry_t *db) +{ + /* This record should like this - + * [TCPseqmismatch <L4> <Original Source IP> <Inside VRF Name> + * - <Translated Source IP> <Original Port> <Translated Source Port> - - -] + */ + unsigned char *temp, *record; + + temp = record = &(log_info->current_logging_context->packet_data[ + CNAT_NFV9_IP_HDR_OFFSET + log_info->pkt_length]); + + /* Now we point to the location where record needs to be inserted */ + *record++ = '['; /* Open the record */ + + /* Copy the record type */ + clib_memcpy(record, sys_log_event[tcp_seq_mismatch].event_name, + sys_log_event[tcp_seq_mismatch].name_length); + record += sys_log_event[tcp_seq_mismatch].name_length; + *record++ = SYSLOG_DELIMITER; + + /* Next field is TCP */ + *record++ = '6'; + *record++ = SYSLOG_DELIMITER; + + /* Copy the Original Source IP */ + record += copy_ipv4_addr(record, db->in2out_key.k.ipv4); + *record++ = SYSLOG_DELIMITER; + + /* copy configured VRF NAME */ + clib_memcpy(record, log_info->vrf_name, log_info->vrf_name_len); + record += log_info->vrf_name_len; + *record++ = SYSLOG_DELIMITER; + + /* No IPV6 source address for nat44 */ + *record++ = '-'; + *record++ = SYSLOG_DELIMITER; + + record += copy_ipv4_addr(record, db->out2in_key.k.ipv4); + *record++ = SYSLOG_DELIMITER; + + record += u16_to_ascii_decimal_unaligned( + record, db->in2out_key.k.port); + *record++ = SYSLOG_DELIMITER; + + record += u16_to_ascii_decimal_unaligned( + record, db->out2in_key.k.port); + *record++ = SYSLOG_DELIMITER; + + *record++ = '-'; /* No translated end port */ + *record++ = SYSLOG_DELIMITER; + + /*No Destination Info*/ + *record++ = '-'; + *record++ = SYSLOG_DELIMITER; + *record++ = '-'; + *record++ = SYSLOG_DELIMITER; + + *record++ = ']'; /* End of the reocrd */ + + log_info->pkt_length += record - temp; +} + +void cnat_syslog_nat44_tcp_seq_mismatch( + cnat_main_db_entry_t *db, + cnat_vrfmap_t *vrfmap) +{ + cnat_syslog_logging_info_t *logging_info = 0; + + SYSLOG_PRECHECK(vrfmap, NAT44) + + cnat_syslog_nat44_insert_tcp_seq_mismatch(logging_info, db); + + /* + * If we have exceeded the packet length, let us send the + * packet now. There is buffer of additional bytes beyond + * max_pkt_length to ensure that the last add/delete record + * can be stored safely. + */ + + if (PREDICT_FALSE(logging_info->pkt_length > + logging_info->max_length_minus_max_record_size)) { + cnat_syslog_send_pkt(logging_info); + } +} +#endif diff --git a/plugins/vcgn-plugin/vcgn/cnat_syslog.h b/plugins/vcgn-plugin/vcgn/cnat_syslog.h new file mode 100644 index 00000000..931f4b9c --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_syslog.h @@ -0,0 +1,190 @@ +/* + *------------------------------------------------------------------ + * cnat_syslog.h + * + * Copyright (c) 2011-2013 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ + +#ifndef __CNAT_SYSLOG_H__ +#define __CNAT_SYSLOG_H__ + +#include <vlib/vlib.h> +#include <vnet/vnet.h> +#include <vnet/pg/pg.h> +#include <vppinfra/error.h> + +#include "cnat_db.h" +#include "nat64_db.h" +#include "cnat_log_common.h" +#include "dslite_defs.h" + +#define SYSLOG_CONFIG_DEBUG_PRINTF(level, ...) \ + if (config_debug_level > level) PLATFORM_DEBUG_PRINT(__VA_ARGS__); + + +/* one time call at the beginning */ +void cnat_syslog_logging_init(); + +/* + * unconditional call + * will check logging config inside + */ +void cnat_syslog_log_mapping_create(cnat_main_db_entry_t * db, + cnat_vrfmap_t *vrfmap); + +/* + * unconditional call + * will check logging config inside + */ +void cnat_syslog_log_mapping_delete(cnat_main_db_entry_t * db, + cnat_vrfmap_t *vrfmap); + +void cnat_syslog_ds_lite_mapping_create(cnat_main_db_entry_t *db, + dslite_table_entry_t *dslite_entry, cnat_session_entry_t *sdb +#ifndef NO_BULK_LOGGING + , int bulk_alloc +#endif + ); + +void cnat_syslog_ds_lite_port_limit_exceeded( + dslite_key_t * key, + dslite_table_entry_t *dslite_entry); + +#define SYSLOG_TIMESTAMP_LENGTH 20 + +#define CNAT_SYSLOG_VERSION_NUMBER 1 +#define CNAT_SYSLOG_PRIORITY 16*8+6 +/* facility = local0 + severity = info */ + +#define MAX_SYSLOG_HOSTNAME_LEN 32 + +/* 6 for priority + space + * 2 for version + space + * 21 YYYY MMM DD HH:MM:SS + space + * 33 for hostname + space + * 4 for App Name (-) + space + Proc ID (-) + space + * 7 for Msg ID (DSLite is the longest Msg ID so far + space + * 2 for Structured data (-) + space + */ +#define MAX_SYSLOG_HEADER_LEN 75 + +/* 18 for Event Name (Portblockrunout is the longest as of now) + * 3 for L4 (including space) + * 16 for original souce IP + space + * 33 for inside vrf name + space + * 40 for original source IPV6 + space + * 16 for translated source IP + space + * 6 for original port + space + * 6 for translated first source port + space + * 5 for translated last source port + * 2 for [] enclosure + */ +#define MAX_SYSLOG_RECORD_LEN 145 + +typedef enum { + NAT44, + DSLite +} syslog_service_type_t; + +typedef enum { + userbased_assign, + userbased_withdraw, + sessionbased_assign, + sessionbased_withdraw, + sessionbased_assignD, + sessionbased_withdrawD, + port_block_runout, + tcp_seq_mismatch, + max_syslog_event_type +} syslog_event_type_t; + +/* + * This structure store the Syslog Logging information on per + * collector basis. This structure is allocated from a pool and index + * to this structure is stored VRF MAP structures + */ +typedef struct { + /* + * nat64_id will be 0 for nat44 config and i_vrf_id, i_vrf will be 0 + * for nat64 config. Nat64_id will be used while nat64 collector is + * search and i_vrf* for nat44 collector + */ + /* Similarly for ds_lite, ds_lite_id will be used and nat64_id, + * ivrf_id shall be set to 0 + */ + u32 i_vrf_id; /* Inside VRF ID corresponding to this collector */ + u16 i_vrf; /* Inside VRF (uidb_index) corresponding to this collector */ + u16 ds_lite_id; /* DS Lite instance for this collector */ + u16 port; /* Destination port number of the collector */ + + /* + * This field determines the maximum size of the Syslog information + * that can be stored in a logging packet + */ + u16 max_length_minus_max_record_size; + u32 ipv4_address; /* Destination IP address of the collector */ + /* + * Timestamp in UNIX seconds corresponding to when the current + * logging packet was created + */ + u32 current_logging_context_timestamp; + + /* + * Indicates if the entry is already deleted + */ + u8 deleted; + + u8 header_priority; + u16 pkt_length; + + char header_hostname[MAX_SYSLOG_HOSTNAME_LEN]; + char vrf_name[VRF_NAME_LEN_STORED]; + u16 vrf_name_len; + u8 logging_policy; + /* + * current logging context + */ + spp_ctx_t *current_logging_context; + spp_ctx_t *queued_logging_context; + +} cnat_syslog_logging_info_t; + + +/* + * Global structure for CGN APP configuration + */ +typedef struct { + + u16 cnat_syslog_disp_node_index; + + /* + * Whether we have initialized the Syslog information + */ + u8 cnat_syslog_init_done; + +} cnat_syslog_global_info_t; + +typedef struct { + u64 logging_context_creation_fail_count; + u64 downstream_constipation_count; + u64 logging_context_creation_deferred_count; +} cnat_syslog_global_counters_t; + +extern cnat_syslog_logging_info_t *cnat_syslog_logging_info_pool; +extern cnat_syslog_global_info_t cnat_syslog_global_info; + +#define SYSLOG_DEF_PATH_MTU 1500 + +#endif /* __CNAT_SYSLOG_H__ */ diff --git a/plugins/vcgn-plugin/vcgn/cnat_util.c b/plugins/vcgn-plugin/vcgn/cnat_util.c new file mode 100644 index 00000000..c3697b6b --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_util.c @@ -0,0 +1,2256 @@ +/* + *------------------------------------------------------------------ + * cnat_util.c - cnat helpers + * + * Copyright (c) 2009-2014 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ + +#include <vlib/vlib.h> +#include <vnet/vnet.h> +#include <vppinfra/vec.h> +#include <vppinfra/bitmap.h> +#include <vppinfra/hash.h> +#include <vppinfra/pool.h> +#include <vppinfra/clib.h> +#include <vppinfra/error.h> + +#include "tcp_header_definitions.h" + +#if 0 +void spp_api_cnat_v4_config_dummy_t_handler +(spp_api_cnat_v4_config_dummy_t *mp); + +void spp_api_cnat_v4_config_dummy_max_t_handler +(spp_api_cnat_v4_config_dummy_max_t *mp); + +void spp_api_cnat_v4_config_icmp_timeout_t_handler +(spp_api_cnat_v4_config_icmp_timeout_t *mp); + +void spp_api_cnat_clear_db_request_t_handler +(spp_api_cnat_clear_db_request_t *mp); + +void spp_api_cnat_v4_debug_global_t_handler +(spp_api_cnat_v4_debug_global_t *mp); + +void spp_api_cnat_v4_show_outside_entry_req_t_handler +(spp_api_cnat_v4_show_outside_entry_req_t *mp); + +void spp_api_cnat_v4_show_inside_entry_req_t_handler +(spp_api_cnat_v4_show_inside_entry_req_t *mp); + +void spp_api_cnat_show_statistics_summary_req_t_handler +(spp_api_cnat_show_statistics_summary_req_t *mp); + +void cnat_db_create_db_entries_cmd (int argc, unsigned long *argv) +{ + int i, j ; + int nusers = 3000; + + cnat_db_key_bucket_t key_info; + cnat_main_db_entry_t *db; + cnat_gen_icmp_info info; + cnat_key_t dest_info_dummy; + + memset(&dest_info_dummy, 0, sizeof(cnat_key_t)); + printf ("Create %d users, 100 translations each...\n", nusers); + + for (i = 0; i < nusers; i++) { + for (j = 0; j < 100; j++) { + + key_info.k.k.vrf = CNAT_TCP | (1 & CNAT_VRF_MASK); + key_info.k.k.ipv4 = 0x0c000001+i; + key_info.k.k.port = 1024+j; + + db = cnat_get_main_db_entry_v2(&key_info, PORT_SINGLE, + PORT_TYPE_DYNAMIC, &info, &dest_info_dummy); + + if (db == 0) { + printf ("OOPS: cnat_main_db_create failed users %d trans %d\n", i, j); + return; /*jli*/ + } + + db->entry_expires = cnat_current_time; + + } + } +} + +void db_test_clear (int argc, unsigned long *argv) +{ + spp_api_cnat_clear_db_request_t mp; + + mp.wildcard = argv[0]; + mp.protocol = argv[1]; + mp.port_num = argv[2]; + mp.inside_vrf = argv[3]; + mp.ip_addr = argv[4]; + spp_api_cnat_clear_db_request_t_handler(&mp); +} + +/* test code*/ +void cnat_db_test_show (int argc, unsigned long *argv) +{ + + spp_api_cnat_v4_show_inside_entry_req_t mp1[2000]; + spp_api_cnat_v4_show_outside_entry_req_t mp2[30000]; + + if (argc > 1) { + if (argc != 7) { + printf("Usage: db test show dec((which)) dec((vrf)) dec((proto)) dec((ip)) dec((start_port)) dec((end_port)) dec((flags))\n"); + return; + } + + mp1[0].vrf_id = argv[1]; + mp1[0].protocol = argv[2];; + mp1[0].ipv4_addr = argv[3]; + mp1[0].start_port = argv[4]; + mp1[0].end_port = argv[5]; + mp1[0].flags = argv[6]; + mp1[0].all_entries = 0; + + if (argv[0] == 1) { + spp_api_cnat_v4_show_inside_entry_req_t_handler (&(mp1[0])); + } else { + spp_api_cnat_v4_show_outside_entry_req_t_handler (&(mp2[0])); + } + + return; + } else { + printf("inside entries \n"); + mp1[0].ipv4_addr = 0x016994CA; + mp1[0].vrf_id = 1; + mp1[0].all_entries = 0; + mp1[0].start_port = 32765; + mp1[0].end_port = 65535; + mp1[0].protocol = 2; + mp1[0].flags = 3; + + spp_api_cnat_v4_show_inside_entry_req_t_handler (&(mp1[0])); + + mp2[0].ipv4_addr = 0x640200c1; + mp2[0].vrf_id = 0; + mp2[0].start_port = 1025; + mp2[0].end_port = 62235; + mp2[0].protocol = 2; + mp2[0].flags = 3; + + spp_api_cnat_v4_show_outside_entry_req_t_handler (&(mp2[0])); + } + +#if 1 + { + spp_api_cnat_stats_node_mapping_t mp3[20000]; + spp_api_cnat_stats_counter_mapping_t mp4[20000]; + spp_api_cnat_stats_counter_values_t mp5[23000]; + + mp3[0].rc = 0; + spp_api_cnat_stats_node_mapping_t_handler (&mp3); + mp4[0].rc = 0; + spp_api_cnat_stats_counter_mapping_t_handler (&mp4); + + mp5[0].flag = 1; + spp_api_cnat_stats_counter_values_t_handler(&mp5); + } +#endif + +#if 0 + mp1.ipv4_addr = 0x0A010102; + mp1.vrf_id = 1; + mp1.all_entries = 1; + mp1.protocol = 1; + + spp_api_cnat_v4_show_inside_entry_req_t_handler (&mp1); + + + mp1.ipv4_addr = 0x0A010103; + mp1.vrf_id = 1; + mp1.all_entries = 1; + mp1.protocol = 2; + + spp_api_cnat_v4_show_inside_entry_req_t_handler (&mp1); + + mp6[0].inside_vrf_id = 1; + mp6[0].start_ipv4_address = 0x64020001; + mp6[0].end_ipv4_address = 0x64020101; + mp6[0].free_addr = 0; + mp6[0].flags = CNAT_TRANSLATION_ENTRY_STATIC; + + spp_api_cnat_v4_show_freeUsed_entry_req_t_handler(&mp6); + +#endif + printf("returned here"); + + return; +} + + + +void cnat_db_clear_all_entries (int argc, unsigned long *argv) +{ + cnat_main_db_entry_t * db; + u32 index; + + pool_header_t * p = vec_header(cnat_main_db, sizeof(pool_header_t) ); + + for(index = 0; index < vec_len(cnat_main_db); index++) { + + if ( !clib_bitmap_get(p->free_bitmap, index)) { + + db = cnat_main_db + index; + cnat_delete_main_db_entry_v2(db); + + } + } + +} + + +void spp_log_cmd (int argc, unsigned long *argv) +{ + u16 num_traces; + u16 error_code; + u16 num_args; + u32 arg[7]; + u8 i; + + num_traces = argv[0]; + + for (i = 0; i < num_traces; i++) { + error_code = argv[1 + 4*i]; + num_args = argv[2 + 4*i]; + arg[0] = argv[3 + 4*i]; + arg[1] = argv[4 + 4*i]; + + spp_printf(error_code, num_args, arg); + } +} + + +void cnat_db_create_random_entries (int argc, unsigned long *argv) +{ + + platform_cnat_db_create_random_entries(); +} + +#define MAX_DEPTH 10 + +void show_user_db_hash_chain_len() { + + u32 max_len, len, n, i, max_idx, index, used; + cnat_user_db_entry_t * udb; + u32 hash_depth[MAX_DEPTH]; + + memset(hash_depth, 0, sizeof(u32)*MAX_DEPTH); + + n = vec_len(cnat_user_hash); + + used = 0; + max_len = 0; + for(i=0;i<n;i++) { + + index = cnat_user_hash[i].next; + + len = 0; + if (index != EMPTY) used++; + + while (index != EMPTY) { + len++ ; + udb = cnat_user_db + index; + index = udb->user_hash.next; + } + + if(len < (MAX_DEPTH-1) ) { + hash_depth[len]++; + } else { + hash_depth[MAX_DEPTH-1]++; + } + + if (max_len < len) { + max_len = len; + max_idx = cnat_user_hash[i].next; + } + } + + printf("Max user db hash length %u, total buckets %u used %u\n", + max_len, n, used); + + for( i=1; i<(MAX_DEPTH - 1); i++) { + printf("Hash chain len %02d, entries count %d\n", i, hash_depth[i]); + } + + printf("Hash chain len >%02d, entries count %d\n", + MAX_DEPTH-1, hash_depth[MAX_DEPTH-1]); + +} + +void show_main_db_hash_chain_len() { + + u32 max_len, len, n, i, max_idx, index, used; + cnat_main_db_entry_t * db; + u32 hash_depth[MAX_DEPTH]; + + memset(hash_depth, 0, sizeof(u32)*MAX_DEPTH); + + n = vec_len(cnat_in2out_hash); + + used = 0; + max_len = 0; + for(i=0;i<n;i++) { + + index = cnat_in2out_hash[i].next; + + len = 0; + if (index != EMPTY) used++; + + while (index != EMPTY) { + len++ ; + db = cnat_main_db + index; + index = db->in2out_hash.next; + } + + if(len < (MAX_DEPTH-1) ) { + hash_depth[len]++; + } else { + hash_depth[MAX_DEPTH-1]++; + } + + if (max_len < len) { + max_len = len; + max_idx = cnat_in2out_hash[i].next; + } + } + + printf("Max main db I2O hash length %u, total buckets %u used %u\n", + max_len, n, used); + + for( i=1; i<(MAX_DEPTH - 1); i++) { + printf("Hash chain len %02d, entries count %d\n", i, hash_depth[i]); + } + + printf("Hash chain len >%02d, entries count %d\n", + MAX_DEPTH-1, hash_depth[MAX_DEPTH-1]); + + + memset(hash_depth, 0, sizeof(u32)*MAX_DEPTH); + + n = vec_len(cnat_out2in_hash); + used = 0; + max_len = 0; + + for(i=0;i<n;i++) { + + index = cnat_out2in_hash[i].next; + len = 0; + + if (index != EMPTY) used++; + + while (index != EMPTY) { + len++ ; + db = cnat_main_db + index; + index = db->out2in_hash.next; + } + + if(len < (MAX_DEPTH-1) ) { + hash_depth[len]++; + } else { + hash_depth[MAX_DEPTH-1]++; + } + + if (max_len < len) { + max_len = len; + max_idx = cnat_in2out_hash[i].next; + } + } + + printf("Max main db O2I hash length %u, total buckets %u used %u\n", + max_len, n, used); + + for( i=1; i<(MAX_DEPTH - 1); i++) { + printf("Hash chain len %02d, entries count %d\n", i, hash_depth[i]); + } + + printf("Hash chain len >%02d, entries count %d\n", + MAX_DEPTH-1, hash_depth[MAX_DEPTH-1]); + + +} + +u32 db_free_entry (void * p) { + + pool_header_t * h; + u32 free; + + h = pool_header(p); + + free = p == 0 ? 0: vec_len(h->free_indices); + + return free; +} + +void cnat_db_summary (int argc, unsigned long *argv) { + + PLATFORM_DEBUG_PRINT("\n-----------------------------------------"); + PLATFORM_DEBUG_PRINT("\nSummary DB"); + PLATFORM_DEBUG_PRINT("\n-----------------------------------------\n"); + u32 count1, count2, i; +#ifndef NO_NAT64_DEF + extern void nat64_session_db_summary(); +#endif + /* main db active entry count*/ + count1 = vec_len(cnat_main_db); + count2 = db_free_entry(cnat_main_db); + + PLATFORM_DEBUG_PRINT("main db entries: total %u, active %u, free %u\n", count1, count1 - count2, count2); + + /* user db active entry count */ + count1 = vec_len(cnat_user_db); + count2 = db_free_entry(cnat_user_db); + + PLATFORM_DEBUG_PRINT("user db entries: total %u, active %u, free %u\n", count1, count1 - count2, count2); + + + /* user db active entry count */ +#ifndef NO_NAT64_DEF + nat64_session_db_summary(); +#endif + + /* main db hash i2o o2i usage count */ + count1 = 0; + count2 = 0; + + for (i=0; i< CNAT_MAIN_HASH_SIZE; i++) { + + if(cnat_in2out_hash[i].next != ~0) count1++; + if(cnat_out2in_hash[i].next != ~0) count2++; + + } + + PLATFORM_DEBUG_PRINT("main hash in2out: total %6u, used %u (%.2f%%)\n", + CNAT_MAIN_HASH_SIZE, count1, + (100.0*count1)/CNAT_MAIN_HASH_SIZE); + + PLATFORM_DEBUG_PRINT("main hash out2in: total %6u, used %u (%.2f%%)\n", + CNAT_MAIN_HASH_SIZE, count2, + (100.0 * count1)/CNAT_MAIN_HASH_SIZE); + + /* use db hashing usage count */ + + count1 = 0; + + for (i=0; i< CNAT_USER_HASH_SIZE; i++) { + if(cnat_user_hash[i].next != ~0) count1++; + } + + PLATFORM_DEBUG_PRINT("user db hash: total %6u, used %u (%.2f%%)\n", + CNAT_USER_HASH_SIZE, count1, + (100.0*count1)/CNAT_USER_HASH_SIZE); + + PLATFORM_DEBUG_PRINT("\nNull pointer exceptions:\n"); + PLATFORM_DEBUG_PRINT("packet_pool: null enq : %10u, null deq : %10u\n",null_enq_pkt, null_deq_pkt); + PLATFORM_DEBUG_PRINT("ctx_pool : null enq : %10u, null deq : %10u\n",null_enq_ctx, null_deq_ctx); + PLATFORM_DEBUG_PRINT("wqe_pool : null enq : %10u, null deq : %10u\n",null_enq_wqe, null_deq_wqe); + + PLATFORM_DEBUG_PRINT("\nReceived Packet Errors on SPI:\n"); + PLATFORM_DEBUG_PRINT("rcv_pkt_errs: %10u\n",rcv_pkt_errs); + + PLATFORM_DEBUG_PRINT("\nctx/sf allocation failure errors: \n"); +#ifndef CGN_PERF_SCALE_DEBUG + PLATFORM_DEBUG_PRINT("Warning: collection of error counts <with timestamp> is disabled.\n"); + PLATFORM_DEBUG_PRINT("sf alloc errors: %10u, ctx alloc errors: %10u\n",sf_alloc_errs,ctx_alloc_errs); +#else + for(i=0;i<COUNTER_BUFFER_SIZE;i++) + PLATFORM_DEBUG_PRINT("<%2d>Timestamp <sec>: %10u, sf errors: %10u, ctx errors: %10u\n",\ + i,err_cnt_arr[i].timestamp,\ + err_cnt_arr[i].sf_error_counter, \ + err_cnt_arr[i].ctx_error_counter); +#endif +} + +void cnat_db_hash_summary (int argc, unsigned long *argv) { + + show_main_db_hash_chain_len(); + + show_user_db_hash_chain_len(); +} + +/* + * cnat_port_alloc + * This function is now deprecated... + * + */ +#ifdef LB_PORT +int cnat_port_alloc (cnat_portmap_t *cnat_portmap, u16 *portmap_inuse, + int cnat_instance, + port_alloc_t atype, port_pair_t ptype, + int *index, u32 *ipv4_address, u16 *base_port) +#else +int cnat_port_alloc (cnat_portmap_t *cnat_portmap, u16 *portmap_inuse, + port_alloc_t atype, port_pair_t ptype, + int *index, u32 *ipv4_address, u16 *base_port) +#endif +{ + + return (0); +} + +/* + * cnat_port_free + * This function is now deprecated... + * + */ +#ifdef LB_PORT +void cnat_port_free (cnat_portmap_t *cnat_portmap, u16 *portmap_inuse, + int instance, int index, port_pair_t ptype, u16 base_port) +#else +void cnat_port_free (cnat_portmap_t *cnat_portmap, u16 *portmap_inuse, + int index, port_pair_t ptype, u16 base_port) +#endif +{ +} + +void spp_api_cnat_port_allocate_t_handler(spp_api_cnat_port_allocate_t *mp) +{ + int i, j, k1, k2; + int pm_index; + u32 ipv4_address; + u16 aport; + int rv; + char *out1, *out2, *out_f; + port_alloc_t pt1, pt2; + cnat_portmap_t *pm = 0; + u16 *pm_inuse = 0; + u32 *firstp =0; + u32 nr_ports =0; + u32 nodd_ports = 0; + u32 neven_ports = 0; +#ifdef LB_PORT + u32 my_instance = 1; +#endif + char out_r[12] = "allocated-r"; + char out_o[12] = "allocated-o"; + char out_e[12] = "allocated-e"; + + + /* + * this command is run after db create portmap + * vrf is hardcode to 1 + */ + + /* Already have a portmap vector for this VRF? */ + for (i = 0; i < vec_len(cnat_portmap_indices_by_vrf); i++) { + if (cnat_portmap_indices_by_vrf[i] == mp->vrf) { + pm = cnat_portmaps[i]; + pm_inuse = cnat_portmaps_inuse[i]; + goto found_portmaps; + } + } + + printf("need to run db create portmaps first 0x%d\n", + vec_len(cnat_portmap_indices_by_vrf)); + return; + +found_portmaps: + nr_ports = mp->nr_ports; + nodd_ports = mp->nodd_ports; + neven_ports = mp->neven_ports; + + if ((nr_ports + nodd_ports + neven_ports ) > (PORTS_PER_ADDR)) { + printf("invalid port# nr_ports %d + odd %d + even %d " + "should be less than 200 \n", nr_ports, nodd_ports, neven_ports); + return; + } + + /* + * first port + */ + firstp = nr_ports ? (&nr_ports) : (nodd_ports ? (&nodd_ports) : (&neven_ports)); + if (!(*firstp)) { + printf("invalid port# nr_ports %d odd %d even %d ", + nr_ports, nodd_ports, neven_ports); + } + out_f = nr_ports ? out_r : (nodd_ports ? out_o : out_e); + +#ifdef LB_PORT + rv = cnat_port_alloc (pm, pm_inuse, my_instance, + PORT_ALLOC_ANY, PORT_S_ODD, + &pm_index, &ipv4_address, &aport); +#else + rv = cnat_port_alloc (pm, pm_inuse, + PORT_ALLOC_ANY, PORT_S_ODD, + &pm_index, &ipv4_address, &aport); +#endif + + if (!rv) { + printf("failed-o\n"); + return; + } + printf("%s %8d %10x %8d\n", out_f, + pm_index, ipv4_address, aport); + + (*firstp)--; + + for (i=0; i < nr_ports; i++) { +#ifdef LB_PORT + rv = cnat_port_alloc (pm, pm_inuse, my_instance, + PORT_ALLOC_DIRECTED, PORT_SINGLE, + &pm_index, &ipv4_address, &aport); +#else + rv = cnat_port_alloc (pm, pm_inuse, + PORT_ALLOC_DIRECTED, PORT_SINGLE, + &pm_index, &ipv4_address, &aport); +#endif + if (rv) { + printf("%s %8d %10x %8d\n", out_r, + pm_index, ipv4_address, aport); + } else { + printf("%s failed\n", out_r); + return; + } + } + + if (nodd_ports > neven_ports) { + k1 = nodd_ports; + k2 = neven_ports; + pt1 = PORT_S_ODD; + pt2 = PORT_S_EVEN; + out1 = out_o; + out2 = out_e; + } else { + k1= neven_ports; + pt1 = PORT_S_EVEN; + k2 = nodd_ports; + pt2 = PORT_S_ODD; + out1 = out_e; + out2 = out_o; + } + + j = 0; + for (i=0; i < k1; i++) { +#ifdef LB_PORT + rv = cnat_port_alloc (pm, pm_inuse, my_instance, + PORT_ALLOC_DIRECTED, pt1, + &pm_index, &ipv4_address, &aport); +#else + rv = cnat_port_alloc (pm, pm_inuse, + PORT_ALLOC_DIRECTED, pt1, + &pm_index, &ipv4_address, &aport); +#endif + if (rv) { + printf("%s %8d %10x %8d\n", out1, + pm_index, ipv4_address, aport); + } else { + printf("%s failed\n", out1); + return; + } + + if (j < k2) { +#ifdef LB_PORT + rv = cnat_port_alloc (pm, pm_inuse, my_instance, + PORT_ALLOC_DIRECTED, pt2, + &pm_index, &ipv4_address, &aport); +#else + rv = cnat_port_alloc (pm, pm_inuse, + PORT_ALLOC_DIRECTED, pt2, + &pm_index, &ipv4_address, &aport); +#endif + + if (rv) { + printf("%s %8d %10x %8d\n", out2, + pm_index, ipv4_address, aport); + j++; + } else { + printf("%s failed\n", __FUNCTION__); + return; + } + } + } +} + +void cnat_db_summary_stats (int argc, unsigned long *argv) +{ + spp_api_cnat_show_statistics_summary_req_t mp[50000]; + + spp_api_cnat_show_statistics_summary_req_t_handler(&(mp[0])); +} + +void cnat_debug_global_test (int argc, unsigned long *argv) +{ + spp_api_cnat_v4_debug_global_t *mp; + spp_api_cnat_v4_config_dummy_t mp1; + spp_api_cnat_v4_config_icmp_timeout_t mp2[10]; + + mp = spp_msg_api_alloc (sizeof (*mp)); + memset(mp, 0, sizeof (*mp)); + + + mp->_spp_msg_id = SPP_API_CNAT_V4_DEBUG_GLOBAL; + mp->debug_flag = argv[0]; + + platform_send_msg(mp); + + mp2[0].default_value = 3; + + spp_api_cnat_v4_config_dummy_t_handler(&mp1); + spp_api_cnat_v4_config_icmp_timeout_t_handler(&(mp2[0])); +} + +void cnat_debug_inside_test (int argc, unsigned long *argv) +{ + + spp_api_cnat_v4_debug_in2out_private_addr_t *mp; + + mp = spp_msg_api_alloc (sizeof (*mp)); + memset(mp, 0, sizeof (*mp)); + + + mp->_spp_msg_id = SPP_API_CNAT_V4_DEBUG_IN2OUT_PRIVATE_ADDR; + + mp->start_addr = spp_host_to_net_byte_order_32(argv[0]); + mp->end_addr = spp_host_to_net_byte_order_32(argv[1]); + mp->i_vrf = spp_host_to_net_byte_order_16(argv[2]); + mp->debug_flag = spp_host_to_net_byte_order_32(argv[3]); + + platform_send_msg(mp); +} + +void cnat_config_ports_user (int argc, unsigned long *argv) +{ + spp_api_cnat_v4_config_port_limit_t *mp; + + mp = spp_msg_api_alloc (sizeof (*mp)); + memset(mp, 0, sizeof (*mp)); + + + mp->_spp_msg_id = SPP_API_CNAT_V4_CONFIG_PORT_LIMIT; + + mp->port_limit = spp_host_to_net_byte_order_16(argv[0]); + + platform_send_msg(mp); + +} + +void cnat_debug_outside_test (int argc, unsigned long *argv) +{ + + spp_api_cnat_v4_debug_out2in_public_addr_t *mp; + + mp = spp_msg_api_alloc (sizeof (*mp)); + memset(mp, 0, sizeof (*mp)); + + + mp->_spp_msg_id = SPP_API_CNAT_V4_DEBUG_OUT2IN_PUBLIC_ADDR; + + mp->start_addr = spp_host_to_net_byte_order_32(argv[0]); + mp->end_addr = spp_host_to_net_byte_order_32(argv[1]); + mp->o_vrf = spp_host_to_net_byte_order_16(argv[2]); + mp->debug_flag = spp_host_to_net_byte_order_32(argv[3]); + + platform_send_msg(mp); +} + +void cnat_debug_udp_dump (int argc, unsigned long *argv) +{ + + spp_api_cnat_p2mp_debug_request_t *mp; + + mp = spp_msg_api_alloc (sizeof (*mp)); + memset(mp, 0, sizeof (*mp)); + + + mp->_spp_msg_id = SPP_API_CNAT_P2MP_DEBUG_REQUEST; + mp->dump_type = + spp_host_to_net_byte_order_16(CNAT_DEBUG_GENERIC_COMMAND_DEBUG_FLAGS); + + if (spp_host_to_net_byte_order_32(argv[0]) == 1) { + mp->param[0] = spp_host_to_net_byte_order_32( + CNAT_DEBUG_FLAG_UDP_INSIDE_PACKET_DUMP); + } else { + mp->param[0] = spp_host_to_net_byte_order_32( + CNAT_DEBUG_FLAG_UDP_OUTSIDE_PACKET_DUMP); + } + mp->param[1] = spp_host_to_net_byte_order_32(argv[1]); + + platform_send_msg(mp); + + + +} + +void cnat_debug_udp_crc (int argc, unsigned long *argv) +{ + spp_api_cnat_p2mp_debug_request_t *mp; + + mp = spp_msg_api_alloc (sizeof (*mp)); + memset(mp, 0, sizeof (*mp)); + + + mp->_spp_msg_id = SPP_API_CNAT_P2MP_DEBUG_REQUEST; + mp->dump_type = + spp_host_to_net_byte_order_16(CNAT_DEBUG_GENERIC_COMMAND_DEBUG_FLAGS); + + if (spp_host_to_net_byte_order_32(argv[0]) == 1) { + mp->param[0] = spp_host_to_net_byte_order_32( + CNAT_DEBUG_FLAG_UDP_INSIDE_CHECKSUM_MODIFY); + } else { + mp->param[0] = spp_host_to_net_byte_order_32( + CNAT_DEBUG_FLAG_UDP_OUTSIDE_CHECKSUM_MODIFY); + } + mp->param[1] = spp_host_to_net_byte_order_32(argv[1]); + + platform_send_msg(mp); + +} + +void cnat_db_allocate_port_cmd (int argc, unsigned long *argv) +{ + spp_api_cnat_port_allocate_t *mp; + + + if (!argc) { + printf("no port# defined\n"); + return; + } + + if ( argc < 3) { + printf("no port# defined\n"); + return; + } + + if ((argc == 3) && (argv[0] == 0) && (argv[1] == 0) && (argv[2] == 0)) { + printf("no port# defined\n"); + return; + } + + mp = spp_msg_api_alloc (sizeof (*mp)); + memset(mp, 0, sizeof (*mp)); + + + mp->_spp_msg_id = SPP_API_CNAT_PORT_ALLOCATE; + mp->nr_ports = argv[0]; + mp->nodd_ports = argv[1]; + mp->neven_ports = argv[2]; + mp->vrf = 1; + + platform_send_msg(mp); +} + + +void spp_api_cnat_port_clear_t_handler(spp_api_cnat_port_clear_t *mp) +{ + u32 i; + cnat_portmap_t *pm = 0; + u16 *pm_inuse = 0; +#ifdef LB_PORT + u32 my_instance = 1; +#endif + + + /* + * this command is run after db create port + * vrf is hardcode to 1 + */ + + /* Already have a portmap vector for this VRF? */ + for (i = 0; i < vec_len(cnat_portmap_indices_by_vrf); i++) { + if (cnat_portmap_indices_by_vrf[i] == mp->vrf) { + pm = cnat_portmaps[i]; + pm_inuse = cnat_portmaps_inuse[i]; + goto found_portmaps; + } + } + + printf("portmap is not created 0x%d\n", + vec_len(cnat_portmap_indices_by_vrf)); + return; + +found_portmaps: + if (mp->pm_index >= vec_len(pm)) { + printf("invalid port_index 0x%d >= 0x%d\n", + mp->pm_index, vec_len(pm)); + return; + } + +#ifdef LB_PORT + cnat_port_free(pm, pm_inuse, my_instance, + mp->pm_index, PORT_SINGLE, mp->port); +#else + cnat_port_free(pm, pm_inuse, + mp->pm_index, PORT_SINGLE, mp->port); +#endif + printf("\n pm_index %d port %d is deleted\n", mp->pm_index, mp->port); +} + + + +void cnat_db_clear_port_cmd (int argc, unsigned long *argv) +{ + spp_api_cnat_port_clear_t *mp; + + if (!argc) { + printf("no port# defined\n"); + return; + } + + if ( argc < 2 ) { + printf("no port# defined\n"); + return; + } + + if (argc > 2) { + printf("too many port# defined\n"); + return; + } + + mp = spp_msg_api_alloc (sizeof (*mp)); + memset(mp, 0, sizeof (*mp)); + + + mp->_spp_msg_id = SPP_API_CNAT_PORT_CLEAR; + mp->pm_index = argv[0]; + mp->port = argv[1]; + mp->vrf = 1; + + platform_send_msg(mp); +} + + +void spp_api_cnat_v4_add_vrf_map_t_handler +(spp_api_cnat_v4_add_vrf_map_t *mp); + +void spp_api_cnat_v4_del_vrf_map_t_handler +(spp_api_cnat_v4_del_vrf_map_t *mp); + +void spp_api_cnat_v4_add_static_port_t_handler +(spp_api_cnat_v4_add_static_port_t *mp); + +void spp_api_cnat_v4_del_static_port_t_handler +(spp_api_cnat_v4_del_static_port_t *mp); + + +void cnat_db_create_vrfmap_cmd (int argc, unsigned long *argv) +{ + spp_api_cnat_v4_add_vrf_map_t *mp; + + if ((argc != 4)) { + printf("need right input\n"); + return; + } + + mp = spp_msg_api_alloc (sizeof (*mp)); + memset(mp, 0, sizeof (*mp)); + mp->_spp_msg_id = SPP_API_CNAT_V4_ADD_VRF_MAP; + mp->i_vrf = spp_host_to_net_byte_order_16(argv[0]); + mp->o_vrf = spp_host_to_net_byte_order_16(argv[1]); + mp->start_addr[0] = spp_host_to_net_byte_order_32(argv[2]); + mp->end_addr[0] = spp_host_to_net_byte_order_32(argv[3]); + + /* + * Some hardcoded values for the vrf ids + */ + mp->i_vrf_id = spp_host_to_net_byte_order_32(0x00000100 | mp->i_vrf); + mp->o_vrf_id = spp_host_to_net_byte_order_32(0x00000200 | mp->o_vrf); + + platform_send_msg(mp); +} + + +void cnat_db_delete_vrfmap_cmd (int argc, unsigned long *argv) +{ + spp_api_cnat_v4_del_vrf_map_t *mp; + + if (argc != 4) { + printf("need right input\n"); + return; + } + + mp = spp_msg_api_alloc (sizeof (*mp)); + memset(mp, 0, sizeof (*mp)); + mp->_spp_msg_id = SPP_API_CNAT_V4_DEL_VRF_MAP; + mp->i_vrf = spp_host_to_net_byte_order_16(argv[0]); + mp->start_addr[0] = spp_host_to_net_byte_order_32(argv[2]); + mp->end_addr[0] = spp_host_to_net_byte_order_32(argv[3]); + + platform_send_msg(mp); +} + +void cnat_db_add_svi_cmd (int argc, unsigned long *argv) +{ + spp_api_cnat_config_svi_params_t *mp; + + if (argc != 3) { + printf("need right input\n"); + return; + } + + + mp = spp_msg_api_alloc (sizeof (*mp)); + memset(mp, 0, sizeof (*mp)); + mp->_spp_msg_id = SPP_API_CNAT_CONFIG_SVI_PARAMS; + mp->uidb_index = spp_host_to_net_byte_order_16(argv[1]); + mp->svi_ipv4_addr = spp_host_to_net_byte_order_32(argv[2]); + platform_send_msg(mp); + return; +} + + + +void spp_api_cnat_port_create_t_handler(spp_api_cnat_port_create_t *mp) +{ + int i, j, k1, k2; + int my_index; + u32 ipv4_address; + u16 aport; + u32 pm_len =0; + cnat_errno_t rv; + u16 i_vrf; + char *out1, *out2, *out_f; + port_alloc_t pt1, pt2; + cnat_vrfmap_t *my_vrfmap; + cnat_portmap_v2_t *pm = 0; + u32 *firstp =0; + u32 nr_ports =0; + u32 nodd_ports = 0; + u32 neven_ports = 0; +#ifdef LB_PORT + u32 my_instance = 1; +#endif + char out_r[12] = "allocated-r"; + char out_o[12] = "allocated-o"; + char out_e[12] = "allocated-e"; +#ifndef NO_BULK_LOGGING + int nfv9_log_req; +#endif + + nr_ports = mp->nr_ports; + nodd_ports = mp->nodd_ports; + neven_ports = mp->neven_ports; + i_vrf = mp->vrf; + + /* + * this command is run after db create vrfmap + * or using vrf id in init function + */ + /* Already have a portmap vector for this VRF? */ + pool_foreach (my_vrfmap, cnat_map_by_vrf, ({ + if ((my_vrfmap->status == S_RUN) && + (my_vrfmap->i_vrf == i_vrf)) { + pm = my_vrfmap->portmap_list; + pm_len = vec_len(pm); + if (pm_len) { + goto found_portmaps; + } + } + })); + + printf("need to run db create vrfmaps first for this vrf0x%d\n", pm_len); + return; + +found_portmaps: + + if ((nr_ports + nodd_ports + neven_ports ) > (PORTS_PER_ADDR)) { + printf("invalid port# nr_ports %d + odd %d + even %d " + "should be less than 200 \n", nr_ports, nodd_ports, neven_ports); + return; + } + + /* + * first port + */ + firstp = nr_ports ? (&nr_ports) : (nodd_ports ? (&nodd_ports) : (&neven_ports)); + if (!(*firstp)) { + printf("invalid port# nr_ports %d odd %d even %d ", + nr_ports, nodd_ports, neven_ports); + } + out_f = nr_ports ? out_r : (nodd_ports ? out_o : out_e); + + rv = cnat_dynamic_port_alloc_v2 (pm, PORT_ALLOC_ANY, PORT_S_ODD, + &my_index, &ipv4_address, &aport, + cnat_static_port_range +#ifndef NO_BULK_LOGGING + , BULKSIZE_FROM_VRFMAP(my_vrfmap), + &nfv9_log_req +#endif + , 0, + &(my_vrfmap->rseed_ip) + ); + + if (rv != CNAT_SUCCESS) { + printf("failed-o\n"); + return; + } + printf("%s %8d %10x %8d\n", out_f, + my_index, ipv4_address, aport); + + (*firstp)--; + + for (i=0; i < nr_ports; i++) { + rv = cnat_dynamic_port_alloc_v2 (pm, PORT_ALLOC_DIRECTED, PORT_SINGLE, + &my_index, &ipv4_address, &aport, + cnat_static_port_range +#ifndef NO_BULK_LOGGING + , BULKSIZE_FROM_VRFMAP(my_vrfmap), + &nfv9_log_req +#endif + , 0, + &(my_vrfmap->rseed_ip) + ); + + if (rv == CNAT_SUCCESS) { + printf("%s %8d %10x %8d\n", out_r, + my_index, ipv4_address, aport); + } else { + printf("%s failed\n", __FUNCTION__); + return; + } + } + + if (nodd_ports > neven_ports) { + k1 = nodd_ports; + k2 = neven_ports; + pt1 = PORT_S_ODD; + pt2 = PORT_S_EVEN; + out1 = out_o; + out2 = out_e; + } else { + k1= neven_ports; + pt1 = PORT_S_EVEN; + k2 = nodd_ports; + pt2 = PORT_S_ODD; + out1 = out_e; + out2 = out_o; + } + + j = 0; + for (i=0; i < k1; i++) { + rv = cnat_dynamic_port_alloc_v2 (pm, PORT_ALLOC_DIRECTED, pt1, + &my_index, &ipv4_address, &aport, + cnat_static_port_range +#ifndef NO_BULK_LOGGING + , BULKSIZE_FROM_VRFMAP(my_vrfmap), + &nfv9_log_req +#endif + , 0, + &(my_vrfmap->rseed_ip) + ); + + if (rv == CNAT_SUCCESS) { + printf("%s %8d %10x %8d\n", out1, + my_index, ipv4_address, aport); + } else { + printf("%s failed\n", __FUNCTION__); + return; + } + + if (j < k2) { + rv = cnat_dynamic_port_alloc_v2 (pm, PORT_ALLOC_DIRECTED, pt2, + &my_index, &ipv4_address, &aport, + cnat_static_port_range +#ifndef NO_BULK_LOGGING + , BULKSIZE_FROM_VRFMAP(my_vrfmap), + &nfv9_log_req +#endif + , 0, + &(my_vrfmap->rseed_ip) + ); + + if (rv == CNAT_SUCCESS) { + printf("%s %8d %10x %8d\n", out2, + my_index, ipv4_address, aport); + j++; + } else { + printf("%s failed\n", __FUNCTION__); + return; + return; + } + } + } +} + + +void cnat_db_create_port_cmd (int argc, unsigned long *argv) +{ + spp_api_cnat_port_create_t *mp; + + if (argc != 4) { + printf("no proper input defined\n"); + return; + } + + if ((argv[0] == 0) && (argv[1] == 0) && (argv[2] == 0)) { + printf("no port# defined\n"); + return; + } + + mp = spp_msg_api_alloc (sizeof (*mp)); + memset(mp, 0, sizeof (*mp)); + + + mp->_spp_msg_id = SPP_API_CNAT_PORT_CREATE; + mp->nr_ports = argv[0]; + mp->nodd_ports = argv[1]; + mp->neven_ports = argv[2]; + mp->vrf = argv[3]; + + platform_send_msg(mp); +} + +void spp_api_cnat_port_delete_t_handler(spp_api_cnat_port_delete_t *mp) +{ + u32 pm_len; + cnat_vrfmap_t *my_vrfmap; + cnat_portmap_v2_t *pm = 0; + + u32 my_index, my_port; + u16 i_vrf; +#ifdef LB_PORT + u32 my_instance = 1; +#endif + + my_index = mp->pm_index; + my_port = mp->port; + i_vrf = mp->vrf; + + /* + * this command is run after db create port + */ + pool_foreach (my_vrfmap, cnat_map_by_vrf, ({ + if (my_vrfmap->i_vrf == i_vrf) { + pm = my_vrfmap->portmap_list; + pm_len = vec_len(pm); + if (pm_len) { + goto found_portmaps; + } + } + })); + + printf("portmap is not created 0x%d\n", + vec_len(cnat_portmap_indices_by_vrf)); + return; + +found_portmaps: + if (my_index >= pm_len) { + printf("invalid port_index 0x%d >= 0x%d\n", + my_index, pm_len); + return; + } + +#ifdef LB_PORT + cnat_port_free_v2(pm, my_instance, + my_index, PORT_SINGLE, mp->port,cnat_static_port_range); +#else + cnat_port_free_v2(pm, my_index, PORT_SINGLE, mp->port,cnat_static_port_range); +#endif + printf("\n pm_index %d port %d is deleted\n", mp->pm_index, mp->port); +} + +void cnat_db_delete_port_cmd (int argc, unsigned long *argv) +{ + spp_api_cnat_port_clear_t *mp; + + if (argc != 3) { + printf("no proper input defined\n"); + return; + } + + mp = spp_msg_api_alloc (sizeof (*mp)); + memset(mp, 0, sizeof (*mp)); + + + mp->_spp_msg_id = SPP_API_CNAT_PORT_DELETE; + mp->pm_index = argv[0]; + mp->port = argv[1]; + mp->vrf = argv[2]; + platform_send_msg(mp); +} + +void cnat_db_create_static_fwd_cmd (int argc, unsigned long *argv) +{ + spp_api_cnat_v4_add_static_port_t *mp; + + if (argc != 4) { + printf("need right input\n"); + return; + } + + mp = spp_msg_api_alloc (sizeof (*mp)); + memset(mp, 0, sizeof (*mp)); + mp->_spp_msg_id = SPP_API_CNAT_V4_ADD_STATIC_PORT; + mp->i_vrf = spp_host_to_net_byte_order_16(argv[0]); + mp->i_ip = spp_host_to_net_byte_order_32(argv[1]); + mp->i_port = spp_host_to_net_byte_order_16(argv[2]); + mp->proto = argv[3]; + + platform_send_msg(mp); + return; +} + +void cnat_db_create_static_fwd_stby_cmd (int argc, unsigned long *argv) +{ + spp_api_cnat_v4_add_static_port_t *mp; + + if (argc != 7) { + printf("need right input\n"); + return; + } + + mp = spp_msg_api_alloc (sizeof (*mp)); + memset(mp, 0, sizeof (*mp)); + mp->_spp_msg_id = SPP_API_CNAT_V4_ADD_STATIC_PORT; + mp->i_vrf = spp_host_to_net_byte_order_16(argv[0]); + mp->i_ip = spp_host_to_net_byte_order_32(argv[1]); + mp->i_port = spp_host_to_net_byte_order_16(argv[2]); + mp->proto = argv[3]; + mp->o_vrf_id = spp_host_to_net_byte_order_32(argv[4]); + mp->o_ip = spp_host_to_net_byte_order_32(argv[5]); + mp->o_port = spp_host_to_net_byte_order_16(argv[6]); + +printf("\ni_vrf %d, ip 0x%x, port %d, o_ip, port %d", mp->i_vrf, mp->i_ip, mp->i_port, mp->o_ip, mp->o_port); + + platform_send_msg(mp); + return; +} + +void cnat_db_delete_static_fwd_cmd (int argc, unsigned long *argv) +{ + spp_api_cnat_v4_del_static_port_t *mp; + + if (argc != 3) { + printf("need right input\n"); + return; + } + + mp = spp_msg_api_alloc (sizeof (*mp)); + memset(mp, 0, sizeof (*mp)); + mp->_spp_msg_id = SPP_API_CNAT_V4_DEL_STATIC_PORT; + mp->i_vrf = spp_host_to_net_byte_order_16(argv[0]); + mp->i_ip = spp_host_to_net_byte_order_32(argv[1]); + mp->i_port = spp_host_to_net_byte_order_16(argv[2]); + + platform_send_msg(mp); + return; +} + +void cnat_nfv9_create_cmd (int argc, unsigned long *argv) +{ + spp_api_cnat_v4_config_nfv9_logging_t *mp; + + if (argc < 3) { + printf("nfv9 create i_vrf ip_addr port [refresh_rate] [timeout] [mtu]"); + return; + } + + mp = spp_msg_api_alloc (sizeof (*mp)); + memset(mp, 0, sizeof (*mp)); + mp->_spp_msg_id = SPP_API_CNAT_V4_CONFIG_NFV9_LOGGING; + mp->enable = 1; + mp->i_vrf = spp_host_to_net_byte_order_16(argv[0]); + + mp->ipv4_address = spp_host_to_net_byte_order_32(argv[1]); + mp->port = spp_host_to_net_byte_order_16(argv[2]); + + if (argc > 3) { + mp->refresh_rate = spp_host_to_net_byte_order_16(argv[3]); + mp->timeout_rate = spp_host_to_net_byte_order_16(argv[4]); + mp->path_mtu = spp_host_to_net_byte_order_16(argv[5]); + } else { + mp->refresh_rate = spp_host_to_net_byte_order_16(1000); + mp->timeout_rate = spp_host_to_net_byte_order_16(30); + mp->path_mtu = spp_host_to_net_byte_order_16(1500); + } + platform_send_msg(mp); +} + +void cnat_delete_cgn (int argc, unsigned long *argv) +{ + void *mp_send; + spp_api_cnat_del_cgn_t *mp; + u32 mp_size; + + mp_size = sizeof(spp_api_cnat_del_cgn_t); + + mp = spp_msg_api_alloc(mp_size); + memset(mp, 0, mp_size); + + mp->_spp_msg_id = SPP_API_CNAT_DEL_CGN; + + mp_send = mp; + + platform_send_msg(mp); +} + +void cnat_debug_global_all (int argc, unsigned long *argv) +{ + spp_api_cnat_v4_debug_global_t *mp; + + mp = spp_msg_api_alloc (sizeof (*mp)); + memset(mp, 0, sizeof (*mp)); + + mp->_spp_msg_id = SPP_API_CNAT_V4_DEBUG_GLOBAL; + mp->debug_flag = CNAT_DEBUG_GLOBAL_ALL; + + platform_send_msg(mp); +} + +void cnat_debug_global_none (int argc, unsigned long *argv) +{ + spp_api_cnat_v4_debug_global_t *mp; + + mp = spp_msg_api_alloc (sizeof (*mp)); + memset(mp, 0, sizeof (*mp)); + + mp->_spp_msg_id = SPP_API_CNAT_V4_DEBUG_GLOBAL; + mp->debug_flag = CNAT_DEBUG_NONE; + + platform_send_msg(mp); +} + + +void cnat_bulk_cmd (int argc, unsigned long *argv) +{ + void *mp_send; + + if (argc < 1) { + printf("\nargc = %d", argc); + printf("\n1. bulk cmd [0=static-port, 1=bulk_vrf, 2=policy_knob]"); + return; + } + + + switch (argv[0]) { + case 0: + { + spp_api_cnat_v4_bulk_add_delete_static_port_t *mp; + spp_api_cnat_v4_add_static_port_t *mp_sp; + u32 mp_size = + sizeof(spp_api_cnat_v4_bulk_add_delete_static_port_t) + + (sizeof(spp_api_cnat_v4_add_static_port_t))*2; + + mp = spp_msg_api_alloc(mp_size); + memset(mp, 0, mp_size); + + mp->_spp_msg_id = SPP_API_CNAT_V4_BULK_ADD_DELETE_STATIC_PORT; + + mp->num_static_port_entries = spp_host_to_net_byte_order_32(3); + + mp_sp = (spp_api_cnat_v4_add_static_port_t *) &(mp->pad2); + + mp_sp->_spp_msg_id = spp_host_to_net_byte_order_16( + SPP_API_CNAT_V4_ADD_STATIC_PORT); + mp_sp->proto = 2; + mp_sp->i_vrf = spp_host_to_net_byte_order_16(0x1); + mp_sp->i_ip = spp_host_to_net_byte_order_32(0x11111111); + mp_sp->i_port = spp_host_to_net_byte_order_16(0x7777); + + mp_sp++; + + + mp_sp->_spp_msg_id = spp_host_to_net_byte_order_16( + SPP_API_CNAT_V4_ADD_STATIC_PORT); + mp_sp->proto = 1; + mp_sp->i_vrf = spp_host_to_net_byte_order_16(0x1); + mp_sp->i_ip = spp_host_to_net_byte_order_32(0x22222222); + mp_sp->i_port = spp_host_to_net_byte_order_16(0x6666); + + mp_sp++; + + + mp_sp->_spp_msg_id = spp_host_to_net_byte_order_16( + SPP_API_CNAT_V4_ADD_STATIC_PORT); + mp_sp->proto = 1; + mp_sp->i_vrf = spp_host_to_net_byte_order_16(0x1); + mp_sp->i_ip = spp_host_to_net_byte_order_32(0x33333333); + mp_sp->i_port = spp_host_to_net_byte_order_16(0x5555); + + mp_send = mp; + + } + break; + + case 1: + { + spp_api_cnat_v4_bulk_vrf_map_t *mp; + spp_api_cnat_v4_single_vrf_map_req *mp_sp; + + u32 mp_size = sizeof(spp_api_cnat_v4_bulk_vrf_map_t) + + (sizeof(spp_api_cnat_v4_single_vrf_map_req))*2; + + mp = spp_msg_api_alloc(mp_size); + memset(mp, 0, mp_size); + + mp->_spp_msg_id = SPP_API_CNAT_V4_BULK_VRF_MAP; + + mp->num_vrfmap_entries = spp_host_to_net_byte_order_32(3); + + mp_sp = (spp_api_cnat_v4_single_vrf_map_req *) + &(mp->vrf_policy_enable); + + mp_sp->i_vrf_id = spp_host_to_net_byte_order_32(0xe0000001); + mp_sp->o_vrf_id = spp_host_to_net_byte_order_32(0xe0000000); + mp_sp->i_vrf = spp_host_to_net_byte_order_16(0x1); + mp_sp->o_vrf = spp_host_to_net_byte_order_16(0x0); + mp_sp->start_addr = spp_host_to_net_byte_order_32(0x11111100); + mp_sp->end_addr = spp_host_to_net_byte_order_32(0x111111ff); + mp_sp->vrf_policy_enable = spp_host_to_net_byte_order_16(0x3); + mp_sp->tcp_mss_value = spp_host_to_net_byte_order_16(0x111); + mp_sp->vrf_nfv9_logging_ipv4_address = spp_host_to_net_byte_order_32(0x11000001); + mp_sp->vrf_nfv9_logging_udp_port = spp_host_to_net_byte_order_16(0x1001); + mp_sp->vrf_nfv9_refresh_rate = spp_host_to_net_byte_order_16(0x100); + mp_sp->vrf_nfv9_timeout_rate = spp_host_to_net_byte_order_16(0x10); + mp_sp->vrf_nfv9_path_mtu = spp_host_to_net_byte_order_16(0x100); + + mp_sp++; + + mp_sp->i_vrf_id = spp_host_to_net_byte_order_32(0xe0000002); + mp_sp->o_vrf_id = spp_host_to_net_byte_order_32(0xe0000000); + mp_sp->i_vrf = spp_host_to_net_byte_order_16(0x2); + mp_sp->o_vrf = spp_host_to_net_byte_order_16(0x0); + mp_sp->start_addr = spp_host_to_net_byte_order_32(0x22220000); + mp_sp->end_addr = spp_host_to_net_byte_order_32(0x2222ffff); + mp_sp->vrf_policy_enable = spp_host_to_net_byte_order_16(0x1); + mp_sp->tcp_mss_value = spp_host_to_net_byte_order_16(0x222); + mp_sp->vrf_nfv9_logging_ipv4_address = spp_host_to_net_byte_order_32(0x22000002); + mp_sp->vrf_nfv9_logging_udp_port = spp_host_to_net_byte_order_16(0x2002); + mp_sp->vrf_nfv9_refresh_rate = spp_host_to_net_byte_order_16(0x200); + mp_sp->vrf_nfv9_timeout_rate = spp_host_to_net_byte_order_16(0x20); + mp_sp->vrf_nfv9_path_mtu = spp_host_to_net_byte_order_16(0x200); + + mp_sp++; + + mp_sp->i_vrf_id = spp_host_to_net_byte_order_32(0xe0000003); + mp_sp->o_vrf_id = spp_host_to_net_byte_order_32(0xe0000007); + mp_sp->i_vrf = spp_host_to_net_byte_order_16(0x3); + mp_sp->o_vrf = spp_host_to_net_byte_order_16(0x7); + mp_sp->start_addr = spp_host_to_net_byte_order_32(0x33333000); + mp_sp->end_addr = spp_host_to_net_byte_order_32(0x33333fff); + mp_sp->vrf_policy_enable = spp_host_to_net_byte_order_16(0x1); + mp_sp->tcp_mss_value = spp_host_to_net_byte_order_16(0x333); + mp_sp->vrf_nfv9_logging_ipv4_address = spp_host_to_net_byte_order_32(0x33000003); + mp_sp->vrf_nfv9_logging_udp_port = spp_host_to_net_byte_order_16(0x3003); + mp_sp->vrf_nfv9_refresh_rate = spp_host_to_net_byte_order_16(0x300); + mp_sp->vrf_nfv9_timeout_rate = spp_host_to_net_byte_order_16(0x30); + mp_sp->vrf_nfv9_path_mtu = spp_host_to_net_byte_order_16(0x300); + + mp_send = mp; + } + break; + + case 2: + { + spp_api_cnat_v4_bulk_policy_knob_t *mp; + + u32 mp_size = + sizeof(spp_api_cnat_v4_bulk_policy_knob_t) + + (sizeof(spp_api_cnat_v4_single_vrf_map_req))*2; + + mp = spp_msg_api_alloc(mp_size); + memset(mp, 0, mp_size); + + mp->_spp_msg_id = SPP_API_CNAT_V4_BULK_POLICY_KNOB; + + mp->port_limit = spp_host_to_net_byte_order_16(345); + mp->icmp_timeout = spp_host_to_net_byte_order_16(300); + mp->udp_init_timeout = spp_host_to_net_byte_order_16(175); + mp->udp_act_timeout = spp_host_to_net_byte_order_16(133); + mp->tcp_init_timeout = spp_host_to_net_byte_order_16(222); + mp->tcp_act_timeout = spp_host_to_net_byte_order_16(2345); + + mp->nat_policy_enable = spp_host_to_net_byte_order_32(0x7); + + mp->global_nfv9_logging_ipv4_address = spp_host_to_net_byte_order_32(0x77777777); + mp->global_nfv9_logging_udp_port = spp_host_to_net_byte_order_16(0x7007); + mp->global_nfv9_refresh_rate = spp_host_to_net_byte_order_16(0x700); + mp->global_nfv9_timeout_rate = spp_host_to_net_byte_order_16(0x70); + mp->global_nfv9_path_mtu = spp_host_to_net_byte_order_16(0x700); + + mp_send = mp; + } + break; + + + default: + printf("\nargv[2] = %d", argv[2]); + printf("\n2. bulk cmd [0=static-port, 1=bulk_vrf, 2=policy_knob+bulk_vrf]"); + return; + + } + platform_send_msg(mp_send); +} + +void cnat_nfv9_delete_cmd (int argc, unsigned long *argv) +{ + spp_api_cnat_v4_config_nfv9_logging_t *mp; + + if (argc != 1) { + printf("nfv9 delete i_vrf "); + return; + } + + mp = spp_msg_api_alloc (sizeof (*mp)); + memset(mp, 0, sizeof (*mp)); + mp->_spp_msg_id = SPP_API_CNAT_V4_CONFIG_NFV9_LOGGING; + mp->enable = 0; + mp->i_vrf = spp_host_to_net_byte_order_16(argv[0]); + platform_send_msg(mp); +} + +void cnat_generic_cmd (int argc, unsigned long *argv) +{ + spp_api_cnat_generic_command_request_t *mp; + + if (argc != 9) { + printf("generic command core type p1 p2 p3 p4 p5 p6 p7 "); + return; + } + + /* + * Allocate a large buffer for message req and resp structure + */ + mp = spp_msg_api_alloc (MAX_DEBUG_BUFFER_SIZE); + memset(mp, 0, MAX_DEBUG_BUFFER_SIZE); + mp->_spp_msg_id = SPP_API_CNAT_GENERIC_COMMAND_REQUEST; + mp->core_num = argv[0]; + mp->params[0] = spp_host_to_net_byte_order_32(argv[1]); + mp->params[1] = spp_host_to_net_byte_order_32(argv[2]); + mp->params[2] = spp_host_to_net_byte_order_32(argv[3]); + mp->params[3] = spp_host_to_net_byte_order_32(argv[4]); + mp->params[4] = spp_host_to_net_byte_order_32(argv[5]); + mp->params[5] = spp_host_to_net_byte_order_32(argv[6]); + mp->params[6] = spp_host_to_net_byte_order_32(argv[7]); + mp->params[7] = spp_host_to_net_byte_order_32(argv[8]); + platform_send_msg(mp); +} + +u32 icmp_sent_timestamps; /* 32 KB array per core */ +u8 v4_pkt_count = 0; + +cnat_icmp_msg_t icmp_msg_gen_allowed () +{ +#ifdef DISABLE_ICMP_THROTTLE_FOR_DEBUG_PURPOSE + return CNAT_ICMP_MSG; +#else + u32 current_timestamp; + spp_node_main_vector_t *nmv; + u32 updated_timestamp; + + v4_pkt_count ++; + + nmv = spp_get_node_main_vectorized_inline(); + + current_timestamp = nmv->ticks / nmv->ticks_per_second; + + PLATFORM_UPDATE_TIMESTAMP + if (PREDICT_FALSE(icmp_sent_timestamps != updated_timestamp)) { + v4_pkt_count = 1; + /* update timestamp */ + icmp_sent_timestamps = updated_timestamp; + } + if (PREDICT_TRUE(v4_pkt_count <= cnat_main_db_icmp_rate_limit_core)) { + return CNAT_ICMP_MSG; + } else { + return CNAT_NO_ICMP_MSG; + } +#endif +} + +u32 v6_icmp_sent_timestamps; /* 32 KB array per core */ +u8 v6_pkt_count = 0; + +cnat_icmp_msg_t v6_icmp_msg_gen_allowed () +{ +#ifdef DISABLE_ICMP_THROTTLE_FOR_DEBUG_PURPOSE + return CNAT_ICMP_MSG; +#else + u32 current_timestamp; + spp_node_main_vector_t *nmv; + u32 updated_timestamp; + + nmv = spp_get_node_main_vectorized_inline(); + + current_timestamp = nmv->ticks / nmv->ticks_per_second; + PLATFORM_UPDATE_TIMESTAMP + v6_pkt_count ++; + + if (PREDICT_FALSE(v6_icmp_sent_timestamps != updated_timestamp)) { + v6_pkt_count = 1; + /* update timestamp */ + v6_icmp_sent_timestamps = updated_timestamp; + } + if (PREDICT_TRUE(v6_pkt_count <= cnat_main_db_icmp_rate_limit_core)) { + return CNAT_ICMP_MSG; + } else { + return CNAT_NO_ICMP_MSG; + } +#endif +} + +u32 v4_udp_crc_zero_timestamps; +u32 v4_udp_crc_zero_pkt_count = 0; +int v4_crc_zero_udp_allowed () +{ + PLATFORM_V4_CRC_ZERO_UDP_ALLOWED + /* Currently not supported for Brahmos. we need to take care of this */ + spp_node_main_vector_t *nmv; + u32 hash_value, current_timestamp; + + nmv = spp_get_node_main_vectorized_inline(); + + current_timestamp = nmv->ticks / nmv->ticks_per_second; + v4_udp_crc_zero_pkt_count++; + if (PREDICT_FALSE(v4_udp_crc_zero_timestamps != current_timestamp)) { + v4_udp_crc_zero_pkt_count = 1; + v4_udp_crc_zero_timestamps = current_timestamp; + } + if (PREDICT_TRUE(v4_udp_crc_zero_pkt_count <= + crc_zero_udp_rate_limit_core)) { + return 1; + } else { + return 0; + } +} + +/* + * ipv4_decr_ttl_n_calc_csum() + * - It decrements the TTL and calculates the incremental IPv4 checksum + */ + +ALWAYS_INLINE( +void ipv4_decr_ttl_n_calc_csum(ipv4_header *ipv4)) +{ + u32 checksum; + u16 old; + + old = ntohs(*(u16 *)&ipv4->ttl); + + /* Decrement TTL */ + ipv4->ttl--; + + /* Calculate incremental checksum */ + checksum = old + (~ntohs(*(u16 *)&ipv4->ttl) & 0xFFFF); + checksum += ntohs(ipv4->checksum); + checksum = (checksum & 0xFFFF) + (checksum >> 16); + ipv4->checksum = htons(checksum + (checksum >> 16)); +} + +ALWAYS_INLINE( +void calc_ipv4_checksum (ipv4_header *ipv4)) +{ + u16 *data = (u16 *) ipv4; + u32 checksum = 0; + + checksum = crc_calc(ipv4); + + /* Now produce the 1's complement */ + ipv4->checksum = spp_host_to_net_byte_order_16(((u16) (~(u16)checksum))); +} + +ALWAYS_INLINE( +void calc_v4_icmp_checksum (icmp_v4_t *icmp, int ipv4_payload_size)) +{ + u16 *data = (u16 *) icmp; + int num_hwords = (ipv4_payload_size)/2; + u32 checksum = 0; + + icmp->checksum = 0; + if (PREDICT_FALSE((ipv4_payload_size%2) != 0)) { + num_hwords += 1; + /* Append 0's in the last octet */ + *((u8 *)data + ipv4_payload_size) = 0; + } + while (num_hwords) { + checksum += (u32)spp_net_to_host_byte_order_16(data++); + num_hwords--; + } + + /* Add in the carry of the original sum */ + checksum = (checksum & 0xFFFF) + (checksum >> 16); + /* Add in the carry of the final sum */ + checksum = (checksum & 0xFFFF) + (checksum >> 16); + /* Now produce the 1's complement */ + icmp->checksum = spp_host_to_net_byte_order_16(((u16) (~(u16)checksum))); +} + +ALWAYS_INLINE( +void calc_v6_icmp_checksum (ipv6_header_t *ipv6, u16 ip_payload_size)) +{ + u16 *data; + u16 *data1; + int i; + icmp_v6_t *icmp; + int num_hwords = (ip_payload_size)/2; + u32 checksum = 0; + pseudo_v6_header_t pseudo_header; + + icmp = (icmp_v6_t *) ((u8 *)ipv6 + IPV6_HDR_LEN); + data = (u16 *) icmp; + icmp->checksum = 0; + +#if 1 + if (PREDICT_FALSE((ip_payload_size%2) != 0)) { + num_hwords += 1; + /* Append 0's in the last octet */ + *((u8 *)data + ip_payload_size) = 0; + } +#endif + + /* construct the pseudo header */ + + pseudo_header.src_addr[0] = ipv6->src_addr[0]; + pseudo_header.src_addr[1] = ipv6->src_addr[1]; + pseudo_header.src_addr[2] = ipv6->src_addr[2]; + pseudo_header.src_addr[3] = ipv6->src_addr[3]; + pseudo_header.dst_addr[0] = ipv6->dst_addr[0]; + pseudo_header.dst_addr[1] = ipv6->dst_addr[1]; + pseudo_header.dst_addr[2] = ipv6->dst_addr[2]; + pseudo_header.dst_addr[3] = ipv6->dst_addr[3]; + pseudo_header.payload_length = spp_host_to_net_byte_order_16(ip_payload_size); + pseudo_header.next_header = spp_host_to_net_byte_order_16(ipv6->next_header); + + data1 = (u16 *) &pseudo_header; + + /* sizeof(pseudo_v6_header_t) = 36 */ + for (i = 0; i < 18; i++) { + checksum += (u32)spp_net_to_host_byte_order_16(data1++); + } + +checksum_calc: + + if (PREDICT_TRUE(num_hwords)) { + checksum += (u32)spp_net_to_host_byte_order_16(data); + num_hwords--; + data++; + goto checksum_calc; + } + + /* Add in the carry of the original sum */ + checksum = (checksum & 0xFFFF) + (checksum >> 16); + /* Add in the carry of the final sum */ + checksum = (checksum & 0xFFFF) + (checksum >> 16); + /* Now produce the 1's complement */ + icmp->checksum = spp_host_to_net_byte_order_16(((u16) (~(u16)checksum))); +} + +void icmp_error_generate_v6 (spp_ctx_t *ctx, u8 icmp_type, + u8 icmp_code, u16 uidb_index) { + + u16 ip_hdr_len, ip_payload_size; + u32 *src_p, * dst_p; + icmp_v6_t *icmp; + int i; + ipv6_header_t *ip_old, *ip_new; + u16 icmp_payload_len; + + /* + * As per RFC 2463, we limit the maximum size of generated ICMPv6 message to * 1280. And hence if the packet is bigger than 1280, then it needs to be + * truncated. Also, if the packet had multiple chained buffers, we need to + * free all chained buffers, except the first one. + */ + free_all_but_first_chained_buffers(ctx); + + ip_hdr_len = IPV6_HDR_LEN; + /* offset to ip payload */ + + ip_old = (ipv6_header_t *)PLATFORM_CTX_CURRENT_HDR; + ip_new = (ipv6_header_t *) ((u8 *) PLATFORM_CTX_CURRENT_HDR - ICMPV6_ERR_SIZE); + icmp = (icmp_v6_t*) ( (u8*)ip_new + ip_hdr_len); + + icmp_payload_len = ip_hdr_len + + spp_net_to_host_byte_order_16(&(ip_old->payload_length)) ; + + ip_payload_size = ICMPV6_HDR_SIZE + icmp_payload_len; + /* + * There is no easy way to predict this case as the probablity that the IPv6 + * pkt is big depends on the type of traffic. Let us optimize the big + * pkt case as it involves more processing + * + * If the pkt size exceeds IPV6_MIN_PATH_MTU truncate it to IPV6_MIN_PATH_MTU + */ + if (PREDICT_TRUE((ip_payload_size + ip_hdr_len) > IPV6_MIN_PATH_MTU)) { + ip_payload_size = IPV6_MIN_PATH_MTU - ip_hdr_len; + } + + /* Following ICMP op has to be after ip header being copied */ + icmp->type = icmp_type; + icmp->code = icmp_code; + + ip_new->version_trafficclass_flowlabel = spp_host_to_net_byte_order_32( + VERSION_TRAFFICCLASS_FLOWLABEL); + ip_new->payload_length = spp_host_to_net_byte_order_16(ip_payload_size); + ip_new->next_header = IPV6_PROTO_ICMPV6; + ip_new->hop_limit = 64; + ip_new->dst_addr[0] = ip_old->src_addr[0]; + ip_new->dst_addr[1] = ip_old->src_addr[1]; + ip_new->dst_addr[2] = ip_old->src_addr[2]; + ip_new->dst_addr[3] = ip_old->src_addr[3]; + + ip_new->src_addr[0] = + spp_host_to_net_byte_order_32(svi_params_array[uidb_index].ipv6_addr[0]); + ip_new->src_addr[1] = + spp_host_to_net_byte_order_32(svi_params_array[uidb_index].ipv6_addr[1]); + ip_new->src_addr[2] = + spp_host_to_net_byte_order_32(svi_params_array[uidb_index].ipv6_addr[2]); + ip_new->src_addr[3] = + spp_host_to_net_byte_order_32(svi_params_array[uidb_index].ipv6_addr[3]); + /* calc checksum for icmp */ + + calc_v6_icmp_checksum(ip_new, ip_payload_size); +#if 0 + printf("Flow = 0x%x\n", ip_new->version_trafficclass_flowlabel); + printf("Hoplimit = 0x%x\n", ip_new->hop_limit); + printf("Length= 0x%x\n", ip_new->payload_length); + printf("Next header = 0x%x\n", ip_new->next_header); + printf("Src add0 = 0x%x\n", ip_new->src_addr[0]); + printf("Src add1 = 0x%x\n", ip_new->src_addr[1]); + printf("Src add2 = 0x%x\n", ip_new->src_addr[2]); + printf("Src add3 = 0x%x\n", ip_new->src_addr[3]); + printf("Dst add0 = 0x%x\n", ip_new->dst_addr[0]); + printf("Dst add1 = 0x%x\n", ip_new->dst_addr[1]); + printf("Dst add2 = 0x%x\n", ip_new->dst_addr[2]); + printf("Dst add3 = 0x%x\n", ip_new->dst_addr[3]); + printf("Icmp type = 0x%x\n", icmp->type); + printf("Icmp code = 0x%x\n", icmp->code); + + printf("\n\nICMP packet:\n"); + for (i = 0; i < 10; i ++) { + printf("0x%x " , *((u8 *)icmp + i)); + if ((i%16) == 15) { + printf("\n"); + } + } +#endif + + ctx->current_header -= ICMPV6_ERR_SIZE; + ctx->current_length = ip_payload_size + ip_hdr_len; + PLATFORM_CNAT_SET_TX_VRF(ctx,uidb_index); +} + +void icmp_error_generate_v2 (ipv4_header *ip, u8 icmp_type, + u8 icmp_code, u16 mtu, u32 src_ip) +{ + + u16 ip_hdr_len, ip_payload_size; + u32 *src_p, * dst_p; + icmp_v4_t *icmp; + + ip_hdr_len = (ip->version_hdr_len_words & 0xf) << 2; /* offset to ip payload */ + icmp = (icmp_v4_t*) ( (u8*)ip + ip_hdr_len); + ip_payload_size = sizeof(icmp_v4_t) + ip_hdr_len + + ICMP_UNREACHABLE_IP_PAYLOAD_SIZE; + + src_p = (u32*) + ((u8*)ip + ip_hdr_len + ICMP_UNREACHABLE_IP_PAYLOAD_SIZE - 4); + dst_p = (u32*) ((u8*)src_p + sizeof(ipv4_header) + + sizeof(icmp_v4_t)); + + while(src_p >= (u32*)ip) *dst_p-- = *src_p--; + + /* Following ICMP op has to be after ip header being copied */ + icmp->type = icmp_type; + icmp->code = icmp_code; + icmp->identifier = 0; + icmp->sequence = 0; + if(PREDICT_FALSE(mtu != 0)) { + icmp->sequence = spp_host_to_net_byte_order_16(mtu); + } + + + /* build icmp header, keep original tos, identification values */ + ip->version_hdr_len_words = 0x45; + ip->total_len_bytes = sizeof(ipv4_header) + ip_payload_size; + ip->total_len_bytes = spp_host_to_net_byte_order_16(ip->total_len_bytes); + ip->frag_flags_offset = 0; + ip->ttl = 64; + ip->protocol = ICMP_PROT; + ip->checksum = 0; + ip->dest_addr = ip->src_addr; + ip->src_addr = spp_host_to_net_byte_order_32(src_ip); + + /* calc checksum for ip and icmp */ + + calc_ipv4_checksum(ip); + calc_v4_icmp_checksum( (icmp_v4_t *) ((u8*) ip + sizeof(ipv4_header)), + ip_payload_size); +} + +void icmp_error_generate (ipv4_header *ip, u8 icmp_type, + u8 icmp_code, u16 uidb_index) { + + u16 ip_hdr_len, ip_payload_size; + u32 *src_p, * dst_p; + icmp_v4_t *icmp; + + ip_hdr_len = (ip->version_hdr_len_words & 0xf) << 2; /* offset to ip payload */ + icmp = (icmp_v4_t*) ( (u8*)ip + ip_hdr_len); + ip_payload_size = sizeof(icmp_v4_t) + ip_hdr_len + + ICMP_UNREACHABLE_IP_PAYLOAD_SIZE; + + src_p = (u32*) + ((u8*)ip + ip_hdr_len + ICMP_UNREACHABLE_IP_PAYLOAD_SIZE - 4); + dst_p = (u32*) ((u8*)src_p + sizeof(ipv4_header) + + sizeof(icmp_v4_t)); + + while(src_p >= (u32*)ip) *dst_p-- = *src_p--; + + /* Following ICMP op has to be after ip header being copied */ + icmp->type = icmp_type; + icmp->code = icmp_code; + icmp->identifier = 0; + icmp->sequence = 0; + + + /* build icmp header, keep original tos, identification values */ + ip->version_hdr_len_words = 0x45; + ip->total_len_bytes = sizeof(ipv4_header) + ip_payload_size; + ip->total_len_bytes = spp_host_to_net_byte_order_16(ip->total_len_bytes); + ip->frag_flags_offset = 0; + ip->ttl = 64; + ip->protocol = ICMP_PROT; + ip->checksum = 0; + ip->dest_addr = ip->src_addr; + + ip->src_addr = spp_host_to_net_byte_order_32(svi_params_array[uidb_index].ipv4_addr); + + /* calc checksum for ip and icmp */ + + calc_ipv4_checksum(ip); + calc_v4_icmp_checksum( (icmp_v4_t *) ((u8*) ip + sizeof(ipv4_header)), + ip_payload_size); +#if 0 + printf("version_hdr_len_words = 0x%x\n", ip->version_hdr_len_words); + printf("total_len_bytes = 0x%x\n", ip->total_len_bytes); + printf("Frag = 0x%x\n", ip->frag_flags_offset); + printf("ttl = 0x%x\n", ip->ttl); + printf("Protocol = 0x%x\n", ip->protocol); + printf("checksum = 0x%x\n", ip->checksum); + printf("Dest addr = 0x%x\n", ip->dest_addr); + printf("Src addr = 0x%x\n", ip->src_addr); + printf("Icmp type = 0x%x\n", icmp->type); + printf("Icmp code = 0x%x\n", icmp->code); +#endif + +} + +int icmpv4_generate_with_throttling_v2 (spp_ctx_t *ctx, ipv4_header *ipv4, + int icmp_type, int icmp_code, + u16 mtu, u32 src_ip) +{ + u16 ip_hdr_len; + icmp_v4_t *icmp; + u16 rx_uidb_index = ctx->ru.rx.uidb_index; + if (icmp_msg_gen_allowed()) { + free_all_but_first_chained_buffers(ctx); + icmp_error_generate_v2(ipv4, icmp_type, icmp_code, mtu, src_ip); + ctx->current_length = (u16) + ((u8*)ctx->current_header - ctx->packet_data) + + spp_net_to_host_byte_order_16(&ipv4->total_len_bytes); + PLATFORM_CNAT_SET_TX_VRF(ctx,rx_uidb_index); + return 1; + } else { + return 0; + } +} + +int icmpv4_generate_with_throttling (spp_ctx_t *ctx, ipv4_header *ipv4, + u16 rx_uidb_index) +{ + int icmp_type; + int icmp_code; + + if (icmp_msg_gen_allowed()) { + /* ICMP error would be small, so one buffer is enough. Clear the other */ + free_all_but_first_chained_buffers(ctx); + + icmp_type = ICMPV4_TIMEEXCEEDED; + icmp_code = ICMPV4_TIMTTL; + icmp_error_generate(ipv4, icmp_type, icmp_code, rx_uidb_index); + ctx->current_length = (u16) + ((u8*)ctx->current_header - ctx->packet_data) + + spp_net_to_host_byte_order_16(&ipv4->total_len_bytes); + PLATFORM_CNAT_SET_TX_VRF(ctx,rx_uidb_index); + return 1; + } else { + return 0; + } +} + +int icmpv4_generate_with_throttling_v1 (spp_ctx_t *ctx, ipv4_header *ipv4, + u16 rx_uidb_index, u32 type, u32 code) +{ + if (icmp_msg_gen_allowed()) { + /* ICMP error would be small, so one buffer is enough. Clear the other */ + free_all_but_first_chained_buffers(ctx); + + icmp_error_generate(ipv4, type, code, rx_uidb_index); + ctx->current_length = (u16) + ((u8*)ctx->current_header - ctx->packet_data) + + spp_net_to_host_byte_order_16(&ipv4->total_len_bytes); + PLATFORM_CNAT_SET_TX_VRF(ctx,rx_uidb_index); + return 1; + } else { + return 0; + } +} + + +int icmpv6_generate_with_throttling (spp_ctx_t *ctx, ipv6_header_t *ipv6, + u16 rx_uidb_index) +{ + int icmp_type; + int icmp_code; + + if (v6_icmp_msg_gen_allowed()) { + icmp_type = ICMPV6_TIMEEXCEEDED; + icmp_code = ICMPV6_TIMTTL; + icmp_error_generate_v6(ctx, icmp_type, icmp_code, rx_uidb_index); + return 1; + } else { + return 0; + } +} + +int icmpv6_generate_with_throttling_v1 (spp_ctx_t *ctx, ipv6_header_t *ipv6, + u16 rx_uidb_index, u32 type, u32 code) +{ + + if (v6_icmp_msg_gen_allowed()) { + icmp_error_generate_v6(ctx, type, code, rx_uidb_index); + return 1; + } else { + return 0; + } +} +#endif + +void calculate_window_scale(tcp_hdr_type *tcp_header, u8 *scale) { + + u8 check_options = 0; + + *scale = 0; + check_options = ((tcp_header->flags & TCP_FLAG_SYN) && + (((tcp_header->hdr_len>>4) << 2) > sizeof(tcp_hdr_type))); + + if (PREDICT_FALSE(check_options)) { + u8 *options_ptr = tcp_findoption(tcp_header, TCP_OPTION_WINDOW_SCALE); + + /* + * TCP option field: | kind 1B | len 1B | value 2B| + * where kind != [0, 1] + */ + if (PREDICT_TRUE(options_ptr && + (options_ptr[1] == TCP_OPTION_WINDOW_SCALE))) { + u8 *ptr = (u8*)(options_ptr + 2); + *scale = *ptr; + + if(PREDICT_FALSE(*scale >= 14)) { + *scale = 14; + } + + return; + } + } +} + +#if 0 +ALWAYS_INLINE( +void cnat_log_nat44_tcp_seq_mismatch( + cnat_main_db_entry_t *db, + cnat_vrfmap_t *vrfmap)) +{ + /* As of now, Netflow does not require this to be logged + * So only syslog + */ + if(PREDICT_TRUE(db->flags & CNAT_TAC_SEQ_MISMATCH)) { + /* Already logged ..*/ + return; + } + /* else, set the flag and call the log API */ + + db->flags = db->flags | CNAT_TAC_SEQ_MISMATCH; + + cnat_syslog_nat44_tcp_seq_mismatch(db, vrfmap); +} + + +static int cnat_util_init (void *notused) +{ + /* run SPP_API_CNAT_PORTMAP_CREATE first*/ + spp_msg_api_set_handler(SPP_API_CNAT_PORT_ALLOCATE, + spp_api_cnat_port_allocate_t_handler); + + + spp_msg_api_set_handler(SPP_API_CNAT_PORT_CLEAR, + spp_api_cnat_port_clear_t_handler); + + /* run vrfmap config first */ + spp_msg_api_set_handler(SPP_API_CNAT_PORT_CREATE, + spp_api_cnat_port_create_t_handler); + + spp_msg_api_set_handler(SPP_API_CNAT_PORT_DELETE, + spp_api_cnat_port_delete_t_handler); + return 0; +} + +void +print_ipv6_pkt (ipv6_header_t *ip) +{ + u32 i, total_len, l4_len=0; + + u8 *pkt = (u8 *) ip; + + total_len = spp_net_to_host_byte_order_16(&ip->payload_length); + + /* we rarely need to debug > 200 bytes of packet */ + if(total_len > 200) { + total_len = 200; + } + + printf("\n======== PRINTING PKT START======\n"); + printf("======== IPv6 PAYLOAD LEN %d ===========\n", total_len); + for (i=0; i < 40; i++) { + printf(" %02X ", *(pkt + i)); + if(i%16==15) + printf("\n"); + } + + if (ip->next_header == IPV6_PROTO_TCP) { + printf("\n======== TCP HEADER =================\n"); + l4_len = 20; + } + else if (ip->next_header == IPV6_PROTO_UDP) { + printf("\n======== UDP HEADER =================\n"); + l4_len = 8; + } + else if (ip->next_header == IPV6_PROTO_ICMPV6) { + printf("\n======== ICMP HEADER =================\n"); + l4_len = 8; + } + + for (i=40; i < (l4_len + 40); i++) { + printf(" %02X ", *(pkt + i)); + } + + printf("\n======== LAYER4 PAYLOAD ===================\n"); + for (i=(l4_len + 40); i < total_len; i++) { + printf(" %02X ", *(pkt + i)); + if(i%16==15) + printf("\n"); + } + + printf("\n======== PRINTING PKT END =======\n"); +} + + + +PLATFORM_SPP_INIT_FUNCTION(cnat_util_init); +#endif diff --git a/plugins/vcgn-plugin/vcgn/cnat_v4_ftp_alg.h b/plugins/vcgn-plugin/vcgn/cnat_v4_ftp_alg.h new file mode 100644 index 00000000..df3dfcb0 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_v4_ftp_alg.h @@ -0,0 +1,133 @@ +/* + *------------------------------------------------------------------ + * cnat_v4_ftp_alg.h + * + * Copyright (c) 2012-2013 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ + +#ifndef __CNAT_V4_FTP_ALG_H__ +#define __CNAT_V4_FTP_ALG_H__ + + +#include <vlib/vlib.h> +#include <vnet/vnet.h> + +#include "tcp_header_definitions.h" +#include "dslite_defs.h" +#include "dslite_db.h" + +/* shorter form of byte order functions */ + +#define net2host16(x) clib_net_to_host_u16( x) +#define net2host32(x) clib_net_to_host_u32( x) +#define net2host64(x) clib_net_to_host_u64( x) +#define host2net16(x) clib_host_to_net_u16(x) +#define host2net32(x) clib_host_to_net_u32(x) +#define host2net64(x) clib_host_to_net_u64(x) + +//#define BIGENDIAN + +typedef struct iphdrtype_ { + u8 v_ihl; /* version and IP header length */ + u8 tos; /* type of service */ + u16 tl; /* total length */ + u16 id; /* identifier */ + u16 ipreserved: 1; + u16 dontfragment: 1; + u16 morefragments: 1; + u16 fo: 13; /* fragment offset */ + u8 ttl; /* time to live */ + u8 prot; /* protocol type */ + u16 checksum; /* checksum */ + u32 srcadr; /* IP source address */ + u32 dstadr; /* IP destination address */ +} iphdrtype; + + +typedef struct tcptype_ { + u16 sourceport; + u16 destinationport; + u32 sequencenumber; + u32 acknowledgementnumber; + u8 dataoffset; + u8 flags; +#if 0 +/* bypass the ENDIAN part */ +#ifdef BIGENDIAN + u8 reserved: 2; + u8 urg: 1; + u8 ack: 1; + u8 psh: 1; + u8 rst: 1; + u8 syn: 1; + u8 fin: 1; +#else + u8 fin: 1; + u8 syn: 1; + u8 rst: 1; + u8 psh: 1; + u8 ack: 1; + u8 urg: 1; + u8 reserved2: 2; +#endif +#endif + + u16 window; + u16 checksum; + u16 urgentpointer; + u8 data[0]; +} tcptype ; + + +int watch_ftp_port_cmd (iphdrtype *ip, + tcptype *tcp, + u32 * ip_addr, + u16 * port); + + +u8 * ftp_test_pkt_gen (u32 ip_addr, u16 port); + +int update_ftp_port(u8 * pkt, u32 new_ip, u16 new_port, i8 * delta, + cnat_main_db_entry_t *db_tcp_control, + dslite_table_entry_t *dslite_entry_ptr, + ipv6_header_t *ipv6_hdr); +/* + * caller needs to check if it's a ftp packet + * this function returns 1 + * if packet being updated for PORT + * otherwise return 0. + * Assume IP header DOES NOT have option fields + */ + +int cnat_ftp_alg ( u8* pkt, i8 * delta, cnat_main_db_entry_t *db, + dslite_table_entry_t *dslite_entry_ptr, + ipv6_header_t *ipv6_hdr); + +#define FTP_ALG_DEBUG_PRINTF_ENABLED 1 + +#ifdef FTP_ALG_DEBUG_PRINTF_ENABLED + +#define FTP_ALG_DEBUG_PRINTF(...) { \ + if (global_debug_flag & CNAT_DEBUG_FTP_ALG) { \ + printf(__VA_ARGS__); \ + } } + +#else + +#define FTP_ALG_DEBUG_PRINTF(...) + +#endif + +#endif /* __CNAT_V4_FTP_ALG_H__ */ diff --git a/plugins/vcgn-plugin/vcgn/cnat_v4_functions.c b/plugins/vcgn-plugin/vcgn/cnat_v4_functions.c new file mode 100644 index 00000000..d3051fba --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_v4_functions.c @@ -0,0 +1,364 @@ +/* + *--------------------------------------------------------------------------- + * cnat_v4_funtions.c + * + * Copyright (c) 2008-2013 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *--------------------------------------------------------------------------- + */ +#include <vlib/vlib.h> +#include <vnet/vnet.h> +#include <vnet/pg/pg.h> +#include <vppinfra/error.h> + + +#include "tcp_header_definitions.h" +#include "cnat_db.h" +#include "cnat_config.h" +#include "cnat_v4_functions.h" +#include "dslite_defs.h" +#include "dslite_db.h" + +static u32 tcp_logging_count; +static u32 tcp_logging_overflow; + +static tcp_logging_struct_t tcp_logging_array[MAX_TCP_LOGGING_COUNT]; + +/* + * Function to log TCP pkts checksum changes.. + */ +void +tcp_debug_logging ( + u32 seq_num, + u32 ack_num, + u32 old_ip, + u32 new_ip, + u16 old_port, + u16 new_port, + u16 old_ip_crc, + u16 new_ip_crc, + u16 old_tcp_crc, + u16 new_tcp_crc) +{ + tcp_logging_array[tcp_logging_count].seq_num = seq_num; + tcp_logging_array[tcp_logging_count].ack_num = ack_num; + tcp_logging_array[tcp_logging_count].old_ip = old_ip; + tcp_logging_array[tcp_logging_count].new_ip = new_ip; + tcp_logging_array[tcp_logging_count].old_port = old_port; + tcp_logging_array[tcp_logging_count].new_port = new_port; + tcp_logging_array[tcp_logging_count].old_ip_crc = old_ip_crc; + tcp_logging_array[tcp_logging_count].new_ip_crc = new_ip_crc; + tcp_logging_array[tcp_logging_count].old_tcp_crc = old_tcp_crc; + tcp_logging_array[tcp_logging_count].new_tcp_crc = new_tcp_crc; + + tcp_logging_count++; + + if (tcp_logging_count >= MAX_TCP_LOGGING_COUNT) { + tcp_logging_overflow = 1; + tcp_logging_count = 0; + } +} + +/* + * Function to dmp TCP pkts logged.. + */ +void +tcp_debug_logging_dump (void) +{ + u32 i, total_count, start_entry; + + if (tcp_logging_overflow) { + total_count = MAX_TCP_LOGGING_COUNT; + start_entry = tcp_logging_count; + printf("Logging Entries Wrapped Around, displaying %d entries\n", + total_count); + } else { + total_count = tcp_logging_count; + start_entry = 0; + printf("Displaying %d entries\n", total_count); + } + + printf("SEQ ACK IP_O IP_N PORT_O PORT_N L3_CRC_O L3_CRC_N L4_CRC_O L4_CRC_N\n"); + + for (i = 0; i < total_count; i++) { + u32 entry = (i + start_entry) % MAX_TCP_LOGGING_COUNT; + + printf("%04d: 0x%08x 0x%08x 0x%08x 0x%08x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n", + entry, + tcp_logging_array[entry].seq_num, + tcp_logging_array[entry].ack_num, + tcp_logging_array[entry].old_ip, + tcp_logging_array[entry].new_ip, + tcp_logging_array[entry].old_port, + tcp_logging_array[entry].new_port, + tcp_logging_array[entry].old_ip_crc, + tcp_logging_array[entry].new_ip_crc, + tcp_logging_array[entry].old_tcp_crc, + tcp_logging_array[entry].new_tcp_crc); + } +} + +/* + * Function to enable TCP logging + */ +void +tcp_debug_logging_enable_disable (u32 enable_flag) +{ + switch (enable_flag) { + + case TCP_LOGGING_DISABLE: + if (tcp_logging_enable_flag == TCP_LOGGING_DISABLE) { + printf("\nTCP Logging ALREADY DISABLED\n"); + } else { + printf("\nTCP Logging DISABLED\n"); + } + tcp_logging_enable_flag = 0; + break; + + case TCP_LOGGING_ENABLE: + if (tcp_logging_enable_flag == TCP_LOGGING_ENABLE) { + printf("\nTCP Logging ALREADY ENABLED\n"); + } else { + tcp_logging_enable_flag = 1; + tcp_logging_count = 0; + tcp_logging_overflow = 0; + + printf("\nTCP Logging ENABLED\n"); + } + break; + + case TCP_LOGGING_PACKET_DUMP: + tcp_debug_logging_dump(); + break; + + case TCP_LOGGING_SUMMARY_DUMP: + default: + printf("\ntcp_logging_enable_flag %d, tcp_log_count %d\n", + tcp_logging_enable_flag, tcp_logging_count); + printf("To Enable TCP LOGGING provide a flag value of %d\n", + TCP_LOGGING_ENABLE); + break; + } +} + +void hex_dump (u8 * p, int len) { + int i; + for (i=0;i<len;i++) { + if(i && (i & 0x3 ) == 0) printf(" "); + if(i && (i & 0xf ) == 0) printf("\n"); + PLATFORM_DEBUG_PRINT("%02X ", p[i]); + } + PLATFORM_DEBUG_PRINT("\n"); +} + +void +print_icmp_pkt (ipv4_header *ip) +{ + u32 i, total_len; + + u8 *pkt = (u8 *) ip; + + total_len = clib_net_to_host_u16(ip->total_len_bytes); + + printf("\n======== PRINTING PKT START======\n"); + printf("======== IP PACKET LEN %d ===========\n", total_len); + for (i=0; i < 20; i++) { + printf(" %02X ", *(pkt + i)); + } + + printf("\n======== ICMP HEADER =================\n"); + for (i=20; i < 28; i++) { + printf(" %02X ", *(pkt + i)); + } + + printf("\n======== ICMP BODY ===================\n"); + for (i=28; i < total_len; i++) { + printf(" %02X ", *(pkt + i)); + } + + printf("\n======== PRINTING PKT END =======\n"); +} + +void +print_udp_pkt (ipv4_header *ip) +{ + u32 i, total_len, udp_len; + + u8 *pkt = (u8 *) ip; + + total_len = clib_net_to_host_u16(ip->total_len_bytes); + udp_len = total_len - 20; + + printf("\n======== PRINTING PKT START======\n"); + printf("======== IP PACKET LEN %d ===========\n", total_len); + for (i=0; i < 20; i++) { + printf(" %02X ", *(pkt + i)); + } + printf("\n======== UDP PSEUDO HEADER ==========\n"); + for (i=12; i < 20; i++) { + printf(" %02X ", *(pkt + i)); + } + printf(" 00 11 %02X %02X ", udp_len >> 8, udp_len & 0xff); + + printf("\n======== UDP HEADER =================\n"); + for (i=20; i < 28; i++) { + printf(" %02X ", *(pkt + i)); + } + printf("\n======== UDP BODY ===================\n"); + for (i=28; i < total_len; i++) { + printf(" %02X ", *(pkt + i)); + } + + printf("\n======== PRINTING PKT END =======\n"); +} + +void +print_tcp_pkt (ipv4_header *ip) +{ + u32 i, total_len, tcp_len; + + u8 *pkt = (u8 *) ip; + + total_len = clib_net_to_host_u16(ip->total_len_bytes); + tcp_len = total_len - 20; + + printf("\n======== PRINTING PKT START======\n"); + printf("======== IP PACKET LEN %d ===========\n", total_len); + for (i=0; i < 20; i++) { + printf(" %02X ", *(pkt + i)); + } + printf("\n======== TCP PSEUDO HEADER ==========\n"); + for (i=12; i < 20; i++) { + printf(" %02X ", *(pkt + i)); + } + printf(" 00 06 %02X %02X ", tcp_len >> 8, tcp_len & 0xff); + + printf("\n======== TCP HEADER =================\n"); + for (i=20; i < 40; i++) { + printf(" %02X ", *(pkt + i)); + } + printf("\n======== TCP BODY ===================\n"); + for (i=40; i < total_len; i++) { + printf(" %02X ", *(pkt + i)); + } + + printf("\n======== PRINTING PKT END =======\n"); +} + +/* IN: ipv4 and tcp header pointer, + * new ipv4 addr and port value + * main db index for accessing per vrf mss value + * DO: + * NAT + * mss adjust if needed + * ip & tcp checksum update (incremental) + */ + +inline void tcp_in2out_nat_mss_n_checksum (ipv4_header * ip, + tcp_hdr_type * tcp, + u32 ipv4_addr, + u16 port, + cnat_main_db_entry_t * db) +{ + u8 *mss_ptr; + u8 check_mss = 0; + u16 mss_old, mss_new; + cnat_vrfmap_t * vrf_map_p; + + cnat_v4_recalculate_tcp_checksum(ip, + tcp, + &(ip->src_addr), + &(tcp->src_port), + ipv4_addr, + port); + u16 frag_offset = + clib_net_to_host_u16(ip->frag_flags_offset); + + if(PREDICT_FALSE(frag_offset & IP_FRAG_OFFSET_MASK)) { + return; /* No TCP Header at all */ + } + + /* + * check SYN bit and if options field is present + * If yes, proceed to extract the options and get TCP MSS value + */ + check_mss = ((tcp->flags & TCP_FLAG_SYN) && + (((tcp->hdr_len>>4) << 2) > sizeof(tcp_hdr_type))); + + if (PREDICT_FALSE(check_mss)) { + + /* get per VRF mss config */ + if(PREDICT_FALSE(db->flags & (CNAT_DB_DSLITE_FLAG))) { + mss_new = dslite_table_db_ptr[db->dslite_nat44_inst_id].tcp_mss; + } else { + vrf_map_p = cnat_map_by_vrf + db->vrfmap_index; + mss_new = vrf_map_p->tcp_mss; + } + DSLITE_PRINTF(1, "Check MSS true..%u\n", mss_new); + /* + * If TCP MSS is not configured, skip the MSS checks + */ + if (PREDICT_FALSE(mss_new != V4_TCP_MSS_NOT_CONFIGURED_VALUE)) { + + /* if mss_ptr != NULL, then it points to MSS option */ + mss_ptr = tcp_findoption(tcp, TCP_OPTION_MSS); + + /* + * TCP option field: | kind 1B | len 1B | value 2B| + * where kind != [0,1] + */ + if (PREDICT_TRUE(mss_ptr && (mss_ptr[1] == 4))) { + + u16 *ptr = (u16*)(mss_ptr + 2); + + mss_old = clib_net_to_host_u16(*ptr); + + if (PREDICT_FALSE(mss_old > mss_new)) { + u32 sum32; + u16 mss_old_r, old_tcp_checksum_r; + + *ptr = clib_host_to_net_u16(mss_new); + + mss_old_r = ~mss_old; + + old_tcp_checksum_r = + ~clib_net_to_host_u16(tcp->tcp_checksum); + + /* + * Revise the TCP checksum + */ + sum32 = old_tcp_checksum_r + mss_old_r + mss_new; + FILL_CHECKSUM(tcp->tcp_checksum, sum32) + + if (PREDICT_FALSE(tcp_logging_enable_flag)) { + tcp_debug_logging( + clib_net_to_host_u32(tcp->seq_num), + clib_net_to_host_u32(tcp->ack_num), + 0, + 0, + mss_old, + mss_new, + 0, + 0, + ~old_tcp_checksum_r, + clib_net_to_host_u16(tcp->tcp_checksum)); + } + } + } + } + } +} + +u32 get_my_svi_intf_ip_addr() { + return 0x01010101; +} diff --git a/plugins/vcgn-plugin/vcgn/cnat_v4_functions.h b/plugins/vcgn-plugin/vcgn/cnat_v4_functions.h new file mode 100644 index 00000000..2429e5e1 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_v4_functions.h @@ -0,0 +1,342 @@ +/* + *------------------------------------------------------------------ + * cnat_v4_functions.h + * + * Copyright (c) 2007-2013 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ + +#ifndef __CNAT_V4_FUNCTOINS__ +#define __CNAT_V4_FUNCTOINS__ + +#include "tcp_header_definitions.h" +#include "cnat_db.h" +#include "spp_ctx.h" + +#include "platform_common.h" + +/* + * Defines and structures to enable TCP packet logging + */ +#define TCP_LOGGING_DISABLE 0 +#define TCP_LOGGING_ENABLE 1 +#define TCP_LOGGING_PACKET_DUMP 2 +#define TCP_LOGGING_SUMMARY_DUMP 3 + +#define MAX_TCP_LOGGING_COUNT 1024 + +typedef struct tcp_logging_struct { + u32 seq_num; + u32 ack_num; + u32 old_ip; + u32 new_ip; + u16 old_port; + u16 new_port; + u16 old_ip_crc; + u16 new_ip_crc; + u16 old_tcp_crc; + u16 new_tcp_crc; +} tcp_logging_struct_t; + +void tcp_debug_logging_dump (void); +void tcp_debug_logging_enable_disable (u32 enable_flag); + +void +tcp_debug_logging ( + u32 seq_num, + u32 ack_num, + u32 old_ip, + u32 new_ip, + u16 old_port, + u16 new_port, + u16 old_ip_crc, + u16 new_ip_crc, + u16 old_tcp_crc, + u16 new_tcp_crc); + +#define JLI printf("%s %s %d\n", __FILE__, __FUNCTION__, __LINE__); fflush(stdout); + +#define CNAT_ICMP_DEST_UNREACHABLE 100 +#define INCREMENT_NODE_COUNTER(c) \ + em->counters[node_counter_base_index + c] += 1; + +#define V4_TCP_UPDATE_SESSION_FLAG(db, tcp) \ +if ((tcp->flags & TCP_FLAG_ACK) && (tcp->flags & TCP_FLAG_SYN)) { \ + db->flags |= CNAT_DB_FLAG_TCP_ACTIVE; \ +} \ +if ((tcp->flags & TCP_FLAG_RST) || (tcp->flags & TCP_FLAG_FIN)) { \ + db->flags &= ~CNAT_DB_FLAG_TCP_ACTIVE; \ + db->flags |= CNAT_DB_FLAG_TCP_CLOSING; \ +} + +#define V4_TCP_UPDATE_SESSION_DB_FLAG(sdb, tcp) \ +if ((tcp->flags & TCP_FLAG_ACK) && (tcp->flags & TCP_FLAG_SYN)) { \ + sdb->flags |= CNAT_DB_FLAG_TCP_ACTIVE; \ +} \ +if ((tcp->flags & TCP_FLAG_RST) || (tcp->flags & TCP_FLAG_FIN)) { \ + sdb->flags &= ~CNAT_DB_FLAG_TCP_ACTIVE; \ + sdb->flags |= CNAT_DB_FLAG_TCP_CLOSING; \ +} + +/* + * Code to recalculate checksum after ACK/SEQ number changes + * This macro assumes, we have pointer to tcp structure + * referenced by the name "tcp" + */ +#define CNAT_UPDATE_TCP_SEQ_ACK_CHECKSUM(old_val32, new_val32) \ +{ \ + u16 old_val_lower, old_val_upper, old_tcp_cr; \ + u16 new_val_lower, new_val_upper, new_tcp_cr; \ + u32 sum32; \ + \ + old_val_lower = ~((u16) old_val32); \ + old_val_upper = ~((u16) (old_val32 >> 16)); \ + old_tcp_cr = ~net2host16(&tcp->tcp_checksum); \ + new_val_lower = (u16) new_val32; \ + new_val_upper = (u16) (new_val32 >> 16); \ + \ + sum32 = old_val_lower + old_val_upper + old_tcp_cr + \ + new_val_lower + new_val_upper; \ + \ + sum32 = (sum32 & 0xffff) + ((sum32 >> 16) & 0xffff); \ + sum32 = (sum32 & 0xffff) + ((sum32 >> 16) & 0xffff); \ + new_tcp_cr = ~((u16)sum32); \ + \ + tcp->tcp_checksum = host2net16(new_tcp_cr); \ +} + +/* + * newchecksum = ~(~oldchecksum + ~old + new) + * old/new for l3 checksum: ip address + */ +#define CNAT_UPDATE_L3_CHECKSUM_DECLARE \ +u16 old_l3_1r, old_l3_2r; \ +u16 old_l3_cr, new_l3_c; \ +u32 new32; + +#define CNAT_UPDATE_L3_CHECKSUM(old_l3_1, old_l3_2, old_l3_c, \ + new_l3_1, new_l3_2) \ +old_l3_1r = ~(old_l3_1); \ +old_l3_2r = ~(old_l3_2); \ +old_l3_cr = ~(old_l3_c); \ +new32 = old_l3_cr + old_l3_1r + old_l3_2r + new_l3_1 + new_l3_2; \ +new32 = (new32 & 0xffff) + ((new32 >> 16) & 0xffff); \ +new32 = (new32 & 0xffff) + ((new32 >> 16) & 0xffff); \ +new_l3_c = ~((u16)new32); + + +/* + * newchecksum = ~(~oldchecksum + ~old + new) + * old/new for l3 checksum: ip address + * old/new for l4 checksum: ip address and port + */ +#define CNAT_UPDATE_L3_L4_CHECKSUM_DECLARE \ +u16 old_l3_1r, old_l3_2r, old_l4r; \ +u16 old_l3_cr, old_l4_cr; \ +u16 new_l3_c, new_l4_c; \ +u32 sum32, new32; + +#define CNAT_UPDATE_L3_L4_CHECKSUM(old_l3_1, old_l3_2, old_l4, \ + old_l3_c, old_l4_c, \ + new_l3_1, new_l3_2, new_l4) \ +old_l3_1r = ~(old_l3_1); \ +old_l3_2r = ~(old_l3_2); \ +old_l3_cr = ~(old_l3_c); \ +sum32 = old_l3_1r + old_l3_2r + new_l3_1 + new_l3_2; \ +new32 = old_l3_cr + sum32; \ +new32 = (new32 & 0xffff) + ((new32 >> 16) & 0xffff); \ +new32 = (new32 & 0xffff) + ((new32 >> 16) & 0xffff); \ +new_l3_c = ~((u16)new32); \ +old_l4r = ~(old_l4); \ +old_l4_cr = ~(old_l4_c); \ +sum32 += old_l4r + new_l4; \ +new32 = old_l4_cr + sum32; \ +new32 = (new32 & 0xffff) + ((new32 >> 16) & 0xffff); \ +new32 = (new32 & 0xffff) + ((new32 >> 16) & 0xffff); \ +new_l4_c = ~((u16)new32); + +/* + * For ICMP checksums, we don't use the top IP header for checksum calculation + */ +#define CNAT_UPDATE_L3_ICMP_CHECKSUM(old_l3_1, old_l3_2, old_l4, \ + old_l3_c, old_l4_c, \ + new_l3_1, new_l3_2, new_l4) \ +old_l3_1r = ~(old_l3_1); \ +old_l3_2r = ~(old_l3_2); \ +old_l3_cr = ~(old_l3_c); \ +sum32 = old_l3_1r + old_l3_2r + new_l3_1 + new_l3_2; \ +new32 = old_l3_cr + sum32; \ +new32 = (new32 & 0xffff) + ((new32 >> 16) & 0xffff); \ +new32 = (new32 & 0xffff) + ((new32 >> 16) & 0xffff); \ +new_l3_c = ~((u16)new32); \ +old_l4r = ~(old_l4); \ +old_l4_cr = ~(old_l4_c); \ +sum32 = old_l4r + new_l4; \ +new32 = old_l4_cr + sum32; \ +new32 = (new32 & 0xffff) + ((new32 >> 16) & 0xffff); \ +new32 = (new32 & 0xffff) + ((new32 >> 16) & 0xffff); \ +new_l4_c = ~((u16)new32); + + +/* + * icmp error type message: + * newchecksum = ~(~oldchecksum + ~old + new) + * old/new for outlayer ip checksum: ip address + * old/new for outlayer icmp checksum: + * out-layer: ip address + * inner-layer: ip addr, port, l3 checksum, l4 checksum + */ +#define CNAT_UPDATE_ICMP_ERR_CHECKSUM_DECLARE \ +u16 old_ip_1r, old_ip_2r, old_ip_port_r, old_ip_cr, old_icmp_cr; \ +u16 new_icmp_c; \ +u32 sum32; + + +#define CNAT_UPDATE_ICMP_ERR_CHECKSUM(old_ip_1, old_ip_2, old_ip_port, old_ip_c, old_icmp_c, \ + new_ip_1, new_ip_2, new_ip_port, new_ip_c) \ +old_ip_1r = ~(old_ip_1); \ +old_ip_2r = ~(old_ip_2); \ +old_ip_port_r = ~(old_ip_port); \ +old_ip_cr = ~(old_ip_c); \ +old_icmp_cr = ~(old_icmp_c); \ +sum32 = old_ip_1r + old_ip_2r + new_ip_1 + new_ip_2 + \ + old_ip_port_r + new_ip_port + old_ip_cr + new_ip_c; \ +new32 = old_icmp_cr + sum32; \ +new32 = (new32 & 0xffff) + ((new32 >> 16) & 0xffff); \ +new32 = (new32 & 0xffff) + ((new32 >> 16) & 0xffff); \ +new_icmp_c = ~((u16)new32); \ + +/* + * Add the two 16 bit parts of the 32 bit field + * Repeat it one more time to take care of any overflow + * Complement the u16 value and store it in network format + */ +#define FILL_CHECKSUM(checksum_field, sum32) { \ + sum32 = (sum32 & 0xffff) + ((sum32>>16) & 0xffff); \ + sum32 = (sum32 & 0xffff) + ((sum32>>16) & 0xffff); \ + checksum_field = clib_host_to_net_u16(~((u16) sum32)); \ +} + +static inline void +cnat_v4_recalculate_tcp_checksum (ipv4_header *ip, + tcp_hdr_type *tcp, + u32 *ip_addr_ptr, + u16 *tcp_port_addr_ptr, + u32 new_ip, + u16 new_port) +{ + u32 old_ip_addr, old_ip32_r, new_ip32, sum32; + u16 old_port_r, old_ip_checksum_r, old_tcp_checksum_r; + + u16 *p16; + + p16 = (u16*) ip_addr_ptr; + + old_ip_addr = *ip_addr_ptr; + old_ip32_r = (((u16) ~clib_net_to_host_u16(*p16)) + + ((u16) ~clib_net_to_host_u16(*(p16+1)))); + + old_port_r = ~clib_net_to_host_u16(*tcp_port_addr_ptr); + + *ip_addr_ptr = clib_host_to_net_u32(new_ip); + + new_ip32 = (new_ip & 0xffff) + ((new_ip >> 16) & 0xffff); + + old_ip_checksum_r = ~clib_net_to_host_u16(ip->checksum); + + /* + * Recalculate the new IP checksum + */ + sum32 = old_ip32_r + new_ip32 + old_ip_checksum_r; + + FILL_CHECKSUM(ip->checksum, sum32); + + u16 frag_offset = + clib_net_to_host_u16((ip->frag_flags_offset)); + + if(PREDICT_FALSE(frag_offset & IP_FRAG_OFFSET_MASK)) { + return; /* No need to update TCP fields */ + } + + *tcp_port_addr_ptr = clib_host_to_net_u16(new_port); + old_tcp_checksum_r = ~clib_net_to_host_u16(tcp->tcp_checksum); + + /* + * Recalculate the new TCP checksum + */ + sum32 = old_ip32_r + new_ip32 + + old_port_r + new_port + old_tcp_checksum_r; + + FILL_CHECKSUM(tcp->tcp_checksum, sum32); + + if (PREDICT_FALSE(tcp_logging_enable_flag)) { + tcp_debug_logging( + clib_net_to_host_u32(tcp->seq_num), + clib_net_to_host_u32(tcp->ack_num), + clib_net_to_host_u32(old_ip_addr), + clib_net_to_host_u32(*ip_addr_ptr), + ~old_port_r, + clib_net_to_host_u16(*tcp_port_addr_ptr), + ~old_ip_checksum_r, + clib_net_to_host_u16(ip->checksum), + ~old_tcp_checksum_r, + clib_net_to_host_u16(tcp->tcp_checksum)); + } +} + + +extern void tcp_in2out_nat_mss_n_checksum (ipv4_header *ip, + tcp_hdr_type *tcp, + u32 ipv4_addr, + u16 port, + cnat_main_db_entry_t * db); + +void hex_dump(u8 * p, int len); + +u32 get_my_svi_intf_ip_addr(); + +/* + * in cnat_v4_icmp_gen.c, + * return 1 if icmp msg allow to generate + * for this user + */ + +u32 icmp_msg_gen_allowed (); + +cnat_icmp_msg_t v6_icmp_msg_gen_allowed(); + +int v4_crc_zero_udp_allowed(); +void ipv4_decr_ttl_n_calc_csum(ipv4_header *ipv4); +int icmpv4_generate_with_throttling (spp_ctx_t *ctx, ipv4_header *ipv4, + u16 rx_uidb_index); + +int icmpv6_generate_with_throttling (spp_ctx_t *ctx, ipv6_header_t *ipv4, + u16 rx_uidb_index); + +void icmp_error_generate_v6(spp_ctx_t *ctx, u8 icmp_type, + u8 icmp_code, u16 uidb_index); + +void calculate_window_scale(tcp_hdr_type *tcp_header, u8 *scale); + +void cnat_log_nat44_tcp_seq_mismatch( + cnat_main_db_entry_t *db, + cnat_vrfmap_t *vrfmap); +void print_icmp_pkt (ipv4_header *ip); +void print_udp_pkt (ipv4_header *ip); +void print_tcp_pkt (ipv4_header *ip); +void print_ipv6_pkt (ipv6_header_t *ip); + + +#endif + diff --git a/plugins/vcgn-plugin/vcgn/cnat_v4_pptp_alg.h b/plugins/vcgn-plugin/vcgn/cnat_v4_pptp_alg.h new file mode 100644 index 00000000..5a6d4243 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_v4_pptp_alg.h @@ -0,0 +1,150 @@ +/* + *------------------------------------------------------------------ + * cnat_v4_pptp_alg.h + * + * Copyright (c) 2009-2013 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ + +#ifndef __CNAT_V4_PPTP_ALG_H__ +#define __CNAT_V4_PPTP_ALG_H__ + +/* Debug utils of PPTP */ +#define PPTP_DBG(debug, ...) \ + if(PREDICT_FALSE(cnat_pptp_debug_flag >= debug)) { \ + PLATFORM_DEBUG_PRINT("%s:%s:%d - ", \ + __FILE__, __FUNCTION__, __LINE__);\ + PLATFORM_DEBUG_PRINT(__VA_ARGS__);\ + PLATFORM_DEBUG_PRINT("\n"); \ + } + +#define PPTP_DUMP_PACKET(ip, len) pptp_hex_dump(ip, len) + + +#define PPTP_DISABLED 0 +#define PPTP_ENABLED 1 + +#define PPTP_GRE_TIMEOUT 60 /*sec */ + +#define TCP_PPTP_PORT 1723 + +#define PPTP_PAC 0 +#define PPTP_PNS 1 + +/* PPTP MSG TYPE */ + +#define PPTP_MSG_TYPE_CONTROL 1 +#define PPTP_MSG_TYPE_MGMT 2 + +/* PPTP control messages */ + +/* control connection mgmt */ +#define PPTP_START_CC_RQ 1 +#define PPTP_START_CC_RP 2 +#define PPTP_STOP_CC_RQ 3 +#define PPTP_STOP_CC_RP 4 +#define PPTP_ECHO_RQ 5 +#define PPTP_ECHO_RP 6 + +/* call mgmt */ +#define PPTP_OBOUND_CALL_RQ 7 +#define PPTP_OBOUND_CALL_RP 8 +#define PPTP_IBOUND_CALL_RQ 9 +#define PPTP_IBOUND_CALL_RP 10 +#define PPTP_IBOUND_CALL_CN 11 +#define PPTP_CALL_CLEAR_RQ 12 +#define PPTP_CALL_DISCON_NT 13 + +/* other */ + +#define PPTP_WAN_ERR_NT 14 +#define PPTP_SET_LINK_INF 15 + +#define PPTP_MIN_HDR_LEN 8 + +/* Byte offsets from start of TCP Data(PPTP header) */ + +#define PPTP_CTRL_MGMT_TYPE_OFFSET 0x02 +#define PPTP_CC_TYPE_OFFSET 0x08 +#define PPTP_HDR_CALL_ID_OFFSET 0x0c +#define PPTP_HDR_PEER_CALL_ID_OFFSET 0x0e + +#define PPTP_HDR_RESULT_CODE_OFFSET_STCCRP 0x0e +#define PPTP_HDR_RESULT_CODE_OFFSET 0x10 + + +/* Offset of control/mgmt msg types + from start of TCP header */ + +#define TCP_HEADER_SIZE(tcp) \ + ((tcp->hdr_len>>4) << 2) + + +#define PPTP_MSG_START_OFFSET(tcp) \ + ((u8*)tcp + TCP_HEADER_SIZE(tcp)) + + +#define PPTP_CC_MSG_TYPE_OFFSET(tcp) \ + (PPTP_MSG_START_OFFSET(tcp) + \ + PPTP_CC_TYPE_OFFSET ) + +#define PPTP_MGMT_MSG_TYPE_OFFSET(tcp) \ + ( PPTP_MSG_START_OFFSET(tcp) + \ + PPTP_CTRL_MGMT_TYPE_OFFSET ) + +#define PPTP_CALL_ID_OFFSET(tcp) \ + ( PPTP_MSG_START_OFFSET(tcp) + \ + PPTP_HDR_CALL_ID_OFFSET ) + +#define PPTP_PEER_CALL_ID_OFFSET(tcp) \ + ( PPTP_MSG_START_OFFSET(tcp) + \ + PPTP_HDR_PEER_CALL_ID_OFFSET ) + +#define PPTP_RESULT_CODE_OFFSET(tcp) \ + ( PPTP_MSG_START_OFFSET(tcp) + \ + PPTP_HDR_RESULT_CODE_OFFSET ) + +#define PPTP_RESULT_CODE_OFFSET_STCCRP(tcp) \ + ( PPTP_MSG_START_OFFSET(tcp) + \ + PPTP_HDR_RESULT_CODE_OFFSET_STCCRP) + +/* values */ +#define PPTP_CC_MSG_TYPE(tcp) \ + (u16*)PPTP_CC_MSG_TYPE_OFFSET(tcp) + +#define PPTP_MGMT_MSG_TYPE(tcp) \ + (u16*)PPTP_MGMT_MSG_TYPE_OFFSET(tcp) + +#define PPTP_CALL_ID(tcp) \ + (u16*)PPTP_CALL_ID_OFFSET(tcp) + +#define PPTP_PEER_CALL_ID(tcp) \ + (u16*)PPTP_PEER_CALL_ID_OFFSET(tcp) + +#define PPTP_RESULT_CODE(tcp) \ + *(u8*)PPTP_RESULT_CODE_OFFSET(tcp); + +#define PPTP_RESULT_CODE_STCCRP(tcp) \ + *(u8*)PPTP_RESULT_CODE_OFFSET_STCCRP(tcp); + + +/* other code */ +#define PPTP_CHAN_SUCCESS 1 + + +/* Data structures */ + +extern u32 cnat_pptp_debug_flag; + +#endif /* __CNAT_V4_PPTP_ALG_H__ */ diff --git a/plugins/vcgn-plugin/vcgn/cnat_v4_tcp_in2out_stages.c b/plugins/vcgn-plugin/vcgn/cnat_v4_tcp_in2out_stages.c new file mode 100644 index 00000000..220ced46 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_v4_tcp_in2out_stages.c @@ -0,0 +1,679 @@ +/* + *--------------------------------------------------------------------------- + * cnat_v4_tcp_in2out_stages.c - cnat_v4_tcp_in2out node pipeline stage functions + * + * + * Copyright (c) 2008-2014 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *--------------------------------------------------------------------------- + */ + +#include <vlib/vlib.h> +#include <vnet/vnet.h> +#include <vppinfra/error.h> +#include <vnet/buffer.h> + +#include "cnat_db.h" +/* #include <cnat_feature_data.h> */ +#include "ipv4_packet.h" +#include "tcp_header_definitions.h" +#include "cnat_config.h" +#include "cnat_global.h" +#include "cnat_v4_functions.h" +#include "cnat_v4_ftp_alg.h" +#include "cnat_v4_pptp_alg.h" + +#define foreach_cnat_ipv4_tcp_inside_input_error \ +_(TCP_NAT_IN, "packets received") \ +_(TCP_NAT, "packets NATed") \ +_(TCP_EXCEPTION, "packets to exception") \ +_(TCP_TTL_GEN, "Generated TTL Expiry ICMP packet") \ +_(TCP_TTL_DROP, "Could not generate TTL Expiry ICMP packet") \ +_(TCP_SESSION_DROP, "Could not generate session") \ +_(TCP_FRAG_DROP, "Non-first Fragment received") + +typedef enum { +#define _(sym,str) sym, + foreach_cnat_ipv4_tcp_inside_input_error +#undef _ + CNAT_IPV4_TCP_INSIDE_INPUT_N_ERROR, +} cnat_ipv4_tcp_inside_input_t; + +static char * cnat_ipv4_tcp_inside_input_error_strings[] = { +#define _(sym,string) string, + foreach_cnat_ipv4_tcp_inside_input_error +#undef _ + + + +typedef struct cnat_v4_tcp_in2out_pipeline_data_ { + spp_node_main_vector_t *nmv; + /* Add additional pipeline stage data here... */ + u32 bucket; + u16 src_port; /* Added for handling fragments */ + u16 dst_port; /* Added for handling fragments */ +} cnat_v4_tcp_in2out_pipeline_data_t; + +static cnat_v4_tcp_in2out_pipeline_data_t pctx_data[SPP_MAXDISPATCH]; + +#define EXTRA_PIPELINE_ARGS_PROTO , cnat_v4_tcp_in2out_pipeline_data_t *pctx +#define EXTRA_PIPELINE_ARGS , pctx + +ALWAYS_INLINE( +static inline void +stage0(spp_ctx_t **ctxs, int index, spp_node_t *np, + u8 *disp_used EXTRA_PIPELINE_ARGS_PROTO)) +{ + spp_ctx_t *ctx = ctxs[index]; + /* + * Prefetch the context header. This is almost always + * the right thing to do + */ + SPP_PREFETCH_CTX(ctx); +} + +ALWAYS_INLINE( +static inline void +stage1(spp_ctx_t **ctxs, int index, spp_node_t *np, + u8 *disp_used EXTRA_PIPELINE_ARGS_PROTO)) +{ + spp_ctx_t *ctx = ctxs[index]; + /* got ctx, prefetch packet data separately */ + SPP_PREFETCH_CTX_DATA(ctx, 1*CACHE_DATA_QUANTUM); +} + +ALWAYS_INLINE( +static inline void +stage2(spp_ctx_t **ctxs, int index, spp_node_t *np, + u8 *disp_used EXTRA_PIPELINE_ARGS_PROTO)) +{ + spp_ctx_t *ctx = ctxs[index]; + u64 a, b, c; + u32 bucket; + cnat_feature_data_t *fd = (cnat_feature_data_t *)ctx->feature_data; + ipv4_header *ip; + tcp_hdr_type * tcp; + u8 *prefetch_target; + + INCREMENT_NODE_COUNTER(np, TCP_NAT_IN); + + /* extract the key from ctx and save it to feature_data */ + + ip = (ipv4_header *)(ctx->current_header); + ctx->application_start = (ip->version_hdr_len_words & 0xf) << 2; + tcp = (tcp_hdr_type*) ((u8 *)ip + ctx->application_start); + + PLATFORM_CNAT_SET_RX_VRF(ctx,fd->dbl.k.k.vrf, CNAT_TCP, 1); + fd->dbl.k.k.ipv4 = spp_net_to_host_byte_order_32(&ip->src_addr); + + if(PREDICT_FALSE(ctx->ru.rx.frag)) { + /* Must have routed through cnat_v4_frag_in2out node + * Since feature data of the ctx is being used for other + * purposes here, copy them to extra stage argument + */ + u16 *feature_data_ports = (u16 *)&ctx->feature_data[2]; + pctx[index].src_port = fd->dbl.k.k.port = *feature_data_ports; + feature_data_ports++; + pctx[index].dst_port = *feature_data_ports; + } else { + fd->dbl.k.k.port = spp_net_to_host_byte_order_16(&tcp->src_port); + pctx[index].dst_port = + spp_net_to_host_byte_order_16(&tcp->dest_port); + } + +#if 0 + /* extra info for evil mode, or default value for dst_ipv4 field in good mode */ + fd->dbl.dst_ipv4 = address_dependent_filtering ? + spp_net_to_host_byte_order_32(&ip->dest_addr) : 0; +#endif + + CNAT_V4_GET_HASH(fd->dbl.k.key64, + bucket, CNAT_MAIN_HASH_MASK) + + prefetch_target = (u8 *)(&cnat_in2out_hash[bucket]); + pctx[index].bucket = bucket; + + /* Prefetch the hash bucket */ + SPP_PREFETCH(prefetch_target, 0, LOAD); + +} + +ALWAYS_INLINE( +static inline void +stage3(spp_ctx_t **ctxs, int index, spp_node_t *np, + u8 *disp_used EXTRA_PIPELINE_ARGS_PROTO)) +{ + u32 db_index; + u32 bucket; + uword prefetch_target0, prefetch_target1; + + bucket = pctx[index].bucket; + + /* read the hash bucket */ + db_index = pctx[index].bucket = cnat_in2out_hash[bucket].next; + if (PREDICT_TRUE(db_index != EMPTY)) { + + /* + * Prefetch database keys. We save space by not cache-line + * aligning the DB entries. We don't want to waste LSU + * bandwidth prefetching stuff we won't need. + */ + + prefetch_target0 = (uword)(cnat_main_db + db_index); + + SPP_PREFETCH(prefetch_target0, 0, LOAD); + + /* Just beyond DB key #2 */ + + prefetch_target1 = prefetch_target0 + + STRUCT_OFFSET_OF(cnat_main_db_entry_t, user_ports); + + /* If the targets are in different lines, do the second prefetch */ + + if (PREDICT_FALSE((prefetch_target0 & ~(SPP_CACHE_LINE_BYTES-1)) != + (prefetch_target1 & ~(SPP_CACHE_LINE_BYTES-1)))) { + + SPP_PREFETCH(prefetch_target1, 0, LOAD); + + } + } +} + +static inline void +stage4(spp_ctx_t **ctxs, int index, spp_node_t *np, + u8 *disp_used EXTRA_PIPELINE_ARGS_PROTO) +{ + spp_ctx_t *ctx = ctxs[index]; + u32 db_index = pctx[index].bucket; + cnat_main_db_entry_t *db; + cnat_feature_data_t *fd; + + /* + * Note: if the search already failed (empty bucket), + * the answer is already in the pipeline context structure + */ + if (PREDICT_FALSE(db_index == EMPTY)) { + return; + } + + fd = (cnat_feature_data_t *)ctx->feature_data; + + /* + * Note: hash collisions suck. We can't easily prefetch around them. + * The first trip around the track will be fast. After that, maybe + * not so much... + */ + do { + + db = cnat_main_db + db_index; + if (PREDICT_TRUE(db->in2out_key.key64 == fd->dbl.k.key64)) + break; + db_index = db->in2out_hash.next; + + } while (db_index != EMPTY); + + /* even in evil mode, for in2out, we nat all packets regardless mode and dst_ip */ + + /* Stick the answer back into the pipeline context structure */ + pctx[index].bucket = db_index; +} + +ALWAYS_INLINE( +static inline void +stage5(spp_ctx_t **ctxs, int index, spp_node_t *np, + u8 *disp_used EXTRA_PIPELINE_ARGS_PROTO)) +{ + spp_ctx_t *ctx = ctxs[index]; + u32 db_index = pctx[index].bucket; + cnat_feature_data_t *fd = (cnat_feature_data_t *)ctx->feature_data; + int disposition; + cnat_main_db_entry_t *db; + /* Below two pointers are just to keep the cnat_ftp_alg call happy*/ + dslite_table_entry_t *dslite_entry_ptr = NULL; + ipv6_header_t *ipv6_hdr = NULL; + tcp_hdr_type *tcp; + ipv4_header *ip; + i8 delta; + u32 seq, seq1; + u32 window; + u8 scale; + int rc; + + ip = (ipv4_header *) ctx->current_header; + + if (PLATFORM_HANDLE_TTL_DECREMENT) { + if (PREDICT_FALSE(ip->ttl <= 1)) { + /* Try to generate ICMP error msg, as TTL is <= 1 */ + + if (icmpv4_generate_with_throttling + (ctx, ip, ctx->ru.rx.uidb_index)) { + /* Generated ICMP */ + disposition = CNAT_REWRITE_OUTPUT; + INCREMENT_NODE_COUNTER(np, TCP_TTL_GEN); + } else { + /* Could not generated ICMP - drop the packet */ + disposition = CNAT_DROP; + INCREMENT_NODE_COUNTER(np, TCP_TTL_DROP); + } + goto drop_pkt; + } + } + + if (PREDICT_FALSE(db_index == EMPTY)) { + if(PREDICT_FALSE(ctx->ru.rx.frag)) { + /* Must have routed through cnat_v4_frag_in2out node */ + u16 frag_offset = + spp_net_to_host_byte_order_16(&(ip->frag_flags_offset)); + if(PREDICT_FALSE(frag_offset & IP_FRAG_OFFSET_MASK)) { + INCREMENT_NODE_COUNTER(np, TCP_FRAG_DROP); + disposition = CNAT_DROP; + goto drop_pkt; + } else { + INCREMENT_NODE_COUNTER(np, TCP_EXCEPTION); + disposition = CNAT_V4_TCP_IE; + } + } else { + INCREMENT_NODE_COUNTER(np, TCP_EXCEPTION); + disposition = CNAT_V4_TCP_IE; + } + } else { + cnat_key_t dest_info; + cnat_session_entry_t *session_db = NULL; + db = cnat_main_db + db_index; + /* Handle destination sessions */ + tcp = (tcp_hdr_type*) ((u8*)ip + ctx->application_start); + dest_info.k.port = pctx[index].dst_port; + dest_info.k.ipv4 = spp_net_to_host_byte_order_32(&(ip->dest_addr)); + + if(PREDICT_TRUE(!PLATFORM_DBL_SUPPORT)) { + + /* No DBL support, so just update the destn and proceed */ + db->dst_ipv4 = dest_info.k.ipv4; + db->dst_port = dest_info.k.port; + goto update_pkt; + } + + if(PREDICT_FALSE(db->dst_ipv4 != dest_info.k.ipv4 || + db->dst_port != dest_info.k.port)) { + if(PREDICT_TRUE(db->nsessions == 0)) { + /* Should be a static entry + * Note this session as the first session and log + */ + cnat_add_dest_n_log(db, &dest_info); + } else if(PREDICT_FALSE(db->nsessions == 1)) { + /* Destn is not same as in main db. Multiple session + * scenario + */ + dest_info.k.vrf = db->in2out_key.k.vrf; + session_db = cnat_handle_1to2_session(db, &dest_info); + if(PREDICT_FALSE(session_db == NULL)) { + disposition = CNAT_DROP; + INCREMENT_NODE_COUNTER(np, TCP_SESSION_DROP); + goto drop_pkt; + } + } else { /* There are already multiple destinations */ + dest_info.k.vrf = db->in2out_key.k.vrf; + /* If session already exists, + * cnat_create_session_db_entry will return the existing db + * else create a new db + * If could not create, return NULL + */ + session_db = cnat_create_session_db_entry(&dest_info, + db, TRUE); + if(PREDICT_FALSE(session_db == NULL)) { + disposition = CNAT_DROP; + INCREMENT_NODE_COUNTER(np, TCP_SESSION_DROP); + goto drop_pkt; + } + } + if(PREDICT_TRUE(session_db)) { + /* Have to repeat the window size check for new destinations */ + window = (u32)spp_net_to_host_byte_order_16( + &tcp->window_size); + window = window << session_db->scale; + if(PREDICT_TRUE(!session_db->window)) { + calculate_window_scale(tcp, &scale); + session_db->scale = scale; + session_db->window = window; + } else if (PREDICT_FALSE(session_db->window < + window)) { + /* Update the db entry with window option from packet */ + session_db->window = window; + } else { + /* Do nothing */ + } + session_db->tcp_seq_num = spp_net_to_host_byte_order_32( + &tcp->seq_num); + session_db->ack_no = spp_net_to_host_byte_order_32( + &tcp->ack_num); + if (PREDICT_FALSE(global_debug_flag && CNAT_DEBUG_GLOBAL_ALL)) { + PLATFORM_DEBUG_PRINT("\n In2out SDB stages seq no = %u," + " ack no = %u, window = %u\n", + session_db->tcp_seq_num, + session_db->ack_no, + session_db->window); + } + } + } else { + //Update the seq no and ack no for subsequent communication + //after connection establishment + //No need to update window here. Window is already updated + //during connection establishment + window = (u32)spp_net_to_host_byte_order_16( + &tcp->window_size); + window = window << db->scale; + if(PREDICT_FALSE(!ALG_ENABLED_DB(db))) { + //This check is done since proto_data is part of union in main + //db entry + db->proto_data.tcp_seq_chk.seq_no = + spp_net_to_host_byte_order_32( + &tcp->seq_num); + db->proto_data.tcp_seq_chk.ack_no = + spp_net_to_host_byte_order_32( + &tcp->ack_num); + } + if (PREDICT_FALSE(db->diff_window < window)) { + /* Update the db entry with window option from packet */ + db->diff_window = window; + } + if (PREDICT_FALSE(global_debug_flag && CNAT_DEBUG_GLOBAL_ALL)) { + PLATFORM_DEBUG_PRINT("\n In2out MainDB seq no = %u," + "\n ack no = %u\n", + db->proto_data.tcp_seq_chk.seq_no, + db->proto_data.tcp_seq_chk.ack_no); + PLATFORM_DEBUG_PRINT("\n In2out MAINDB window = %u\n", + db->diff_window); + } + } +update_pkt: + + INCREMENT_NODE_COUNTER(np, TCP_NAT); + + disposition = CNAT_REWRITE_OUTPUT; + + /* NAT the packet and update checksum (increamental) */ + + /* If it is a non-first fragment, we need not worry about + * ALGs as the packet does not have TCP header.. + * However, under a very race scenario when this non-first + * fragment is containing an FTP PORT command OR RTSP command + * we cannot handle that case.. in that case the ALG will fail + * Do not want to add a lot of complexity to handle one in million + * of such ALG case + */ + u16 frag_offset = + spp_net_to_host_byte_order_16(&(ip->frag_flags_offset)); + + if(PREDICT_FALSE(frag_offset & IP_FRAG_OFFSET_MASK)) { + /* Non first fragment.. no TCP header */ + FTP_ALG_DEBUG_PRINTF("Non first frag.. cannot handle ALG"); + goto handle_ttl_n_checksum; + } + + FTP_ALG_DEBUG_PRINTF("src port 0x%x, dst_port 0x%x", + spp_net_to_host_byte_order_16(&tcp->src_port), + spp_net_to_host_byte_order_16(&tcp->dest_port)) + + /* handle FTP ALG */ + if (PREDICT_FALSE(ftp_alg_enabled && + (spp_net_to_host_byte_order_16(&tcp->src_port) == 21 || + spp_net_to_host_byte_order_16(&tcp->dest_port) == 21))) { + + if(PREDICT_FALSE((db->flags & CNAT_DB_FLAG_PPTP_TUNNEL_ACTIVE) || + (db->flags & CNAT_DB_FLAG_PPTP_TUNNEL_INIT))) + { + /* FTP on a PPTP Control session? Ignore FTP */ + goto handle_ttl_n_checksum; + } + + if (PREDICT_FALSE(tcp->flags & (TCP_FLAG_SYN | TCP_FLAG_RST | + TCP_FLAG_FIN))) { + + FTP_ALG_DEBUG_PRINTF("SYN Case setting delta = 0") + + /* reset the delta */ + if(PREDICT_FALSE(session_db != NULL)) { + session_db->alg.delta = 0; + } else { + db->alg.delta = 0; + } + + } else { + + /* need to adjust seq # for in2out pkt if delta is not 0 */ + if (PREDICT_TRUE((session_db && (session_db->alg.delta != 0)) + || ((!session_db) && (db->alg.delta != 0)))) { + seq = net2host32(&tcp->seq_num); + + FTP_ALG_DEBUG_PRINTF("Orig Seq Num 0x%x", seq) + /* + * for ftp packets, due to PORT command translation, + * we may have cases that a packet/payload len gets + * changed for tcp, we need to adjust the packet's + * sequence numbers to match the changes. The delta + * of orig pkt len and new len is in alg_dlt[1] together + * with the sequence number that cuased the delta. When + * there are multiple len changes, we keep theprevious + * delta in alg_dlt[0] for case like pkt retransmission. + * So depends on packet seq number, we decide to use + * either latest delta or previous delta ([0]) + * We won't be here if both delta values are 0 + */ + if(PREDICT_FALSE(session_db != NULL)) { + seq1 = seq > session_db->tcp_seq_num ? + (seq + session_db->alg.alg_dlt[1]): + (seq + session_db->alg.alg_dlt[0]); + } else { + seq1 = seq > db->proto_data.seq_pcp.tcp_seq_num ? + (seq + db->alg.alg_dlt[1]): + (seq + db->alg.alg_dlt[0]); + } + + FTP_ALG_DEBUG_PRINTF("Old_seq_num 0x%x New Seq Num 0x%x", + seq, seq1) + + if (PREDICT_TRUE(seq1 != seq)) { + + tcp->seq_num = host2net32(seq1); + + FTP_ALG_DEBUG_PRINTF("Old TCP Checksum 0x%x", + net2host16(&tcp->tcp_checksum)) + + /* + * fix checksum incremental for seq # changes + * newchecksum = ~(~oldchecksum + ~old + new) + */ + CNAT_UPDATE_TCP_SEQ_ACK_CHECKSUM(seq, seq1) + } /* There is a diff in seq */ + + } /* ALG Delta is non zero */ + + rc = cnat_ftp_alg((u8*) ip, &delta, db, dslite_entry_ptr, ipv6_hdr); + + FTP_ALG_DEBUG_PRINTF("cnat_ftp_alg rc 0x%x", rc) + + /*if located PORT cmd, packet being updated, take the delta and seq # */ + if (PREDICT_FALSE(rc)) { + + /* set alg flag for this ftp control connection */ + if(PREDICT_FALSE(session_db != NULL)) { + session_db->flags |= CNAT_DB_FLAG_ALG_CTRL_FLOW; + } else { + db->flags |= CNAT_DB_FLAG_ALG_CTRL_FLOW; + } + + /* + * rc != 0 indicates this packet has triggered a new pkt len delta + * we need to update db entry's seq# with seq# of this packet. + * + * Move alg_dlt[1] to [0], (current delta -> previous delta) + * then apply latest delta to alg_dlt[1] (keep [1] as latest delta) + */ + if(PREDICT_FALSE(session_db != NULL)) { + session_db->tcp_seq_num = net2host32(&tcp->seq_num); + session_db->alg.alg_dlt[0] = session_db->alg.alg_dlt[1]; + + /* accumulate the delta ! */ + session_db->alg.alg_dlt[1] += delta; + FTP_ALG_DEBUG_PRINTF( + "cnat_ftp_alg seq_num 0x%x, dlt0 0x%x, dlt1 0x%x", + session_db->tcp_seq_num, + session_db->alg.alg_dlt[0], + session_db->alg.alg_dlt[1]) + + } else { + db->proto_data.seq_pcp.tcp_seq_num = net2host32(&tcp->seq_num); + db->alg.alg_dlt[0] = db->alg.alg_dlt[1]; + + /* accumulate the delta ! */ + db->alg.alg_dlt[1] += delta; + + FTP_ALG_DEBUG_PRINTF( + "cnat_ftp_alg seq_num 0x%x, dlt0 0x%x, dlt1 0x%x", + db->proto_data.seq_pcp.tcp_seq_num, + db->alg.alg_dlt[0], + db->alg.alg_dlt[1]) + } + ctx->current_length += delta; + }/* cnat_ftp_alg returned non zero */ + } /* It is not a SYN, RST or FIN */ + } else if (PREDICT_FALSE(rtsp_alg_port_num && + ((spp_net_to_host_byte_order_16(&tcp->dest_port) == rtsp_alg_port_num) || + (spp_net_to_host_byte_order_16(&tcp->src_port) == rtsp_alg_port_num))) ) { + + if (PREDICT_FALSE(tcp->flags & (TCP_FLAG_SYN | TCP_FLAG_RST | + TCP_FLAG_FIN))) { + + FTP_ALG_DEBUG_PRINTF("SYN Case setting delta = 0") + + /* reset the delta */ + if(PREDICT_FALSE(session_db != NULL)) { + session_db->alg.delta = 0; + } else { + db->alg.delta = 0; + } + + } else { +#define RTSP_ALG_DELTA_MASK 0xFF + /* need to adjust seq # for in2out pkt if delta is not 0 */ + if (PREDICT_FALSE((session_db && + (session_db->alg.delta & RTSP_ALG_DELTA_MASK) != 0) || + ((!session_db) && + (db->alg.delta & RTSP_ALG_DELTA_MASK) != 0))) { + seq = net2host32(&tcp->seq_num); + + if(PREDICT_FALSE(session_db != NULL)) { + seq1 = seq > session_db->tcp_seq_num ? + (seq + db->alg.alg_dlt[1]): + (seq + db->alg.alg_dlt[0]); + } else { + seq1 = seq > db->proto_data.seq_pcp.tcp_seq_num ? + (seq + db->alg.alg_dlt[1]): + (seq + db->alg.alg_dlt[0]); + } + + FTP_ALG_DEBUG_PRINTF("Old_seq_num 0x%x New Seq Num 0x%x", + seq, seq1) + + if (PREDICT_TRUE(seq1 != seq)) { + + tcp->seq_num = host2net32(seq1); + + FTP_ALG_DEBUG_PRINTF("Old TCP Checksum 0x%x", + net2host16(&tcp->tcp_checksum)) + + /* + * fix checksum incremental for seq # changes + * newchecksum = ~(~oldchecksum + ~old + new) + */ + CNAT_UPDATE_TCP_SEQ_ACK_CHECKSUM(seq, seq1) + } + + } + } + if ((session_db && (!session_db->alg.il)) || + ((!session_db) && (!db->alg.il))) { + cnat_rtsp_alg((u8*) ip, + &delta, + db, + ctx->current_length, + NULL, + NULL); + } + } +handle_ttl_n_checksum: + if (PLATFORM_HANDLE_TTL_DECREMENT) { + /* + * Decrement TTL and update IPv4 checksum + */ + ipv4_decr_ttl_n_calc_csum(ip); + } + + tcp_in2out_nat_mss_n_checksum(ip, + tcp, + db->out2in_key.k.ipv4, + db->out2in_key.k.port, + db); +/* CNAT_PPTP_ALG_SUPPORT */ + /* code to handle pptp control msgs */ + if(PREDICT_FALSE( + (spp_net_to_host_byte_order_16(&tcp->dest_port) == + TCP_PPTP_PORT))) { + + u32 ret; + + PPTP_DBG(3, "PPTP mgmt/ctrl msg recieved"); + + ret = cnat_handle_pptp_msg(ctx, db , tcp, PPTP_PNS ); + + if( PREDICT_FALSE( ret != CNAT_SUCCESS) ) { + PPTP_DBG(3, "PPTP mgmt/ctrl msg drop"); + disposition = CNAT_DROP; + PPTP_INCR(ctrl_msg_drops); + goto drop_pkt; + } + } + +/* CNAT_PPTP_ALG_SUPPORT */ + + /* update transaltion counters */ + db->in2out_pkts++; + + in2out_forwarding_count++; + + PLATFORM_CNAT_SET_TX_VRF(ctx,db->out2in_key.k.vrf); + + /* update the timer for good mode, or evil mode dst_ip match */ + +// if (!address_dependent_filtering || fd->dbl.dst_ipv4 == db->dst_ipv4) { + if(PREDICT_FALSE(session_db != NULL)) { + V4_TCP_UPDATE_SESSION_DB_FLAG(session_db, tcp); + CNAT_DB_TIMEOUT_RST(session_db); + } else { + V4_TCP_UPDATE_SESSION_FLAG(db, tcp); + CNAT_DB_TIMEOUT_RST(db); + } + +// } + + } + + /* Pick up the answer and put it into the context */ + fd->dbl.db_index = db_index; + +drop_pkt: + + DISP_PUSH_CTX(np, ctx, disposition, disp_used, last_disposition, last_contexts_ptr, last_nused_ptr); + +} + diff --git a/plugins/vcgn-plugin/vcgn/cnat_va_db.c b/plugins/vcgn-plugin/vcgn/cnat_va_db.c new file mode 100644 index 00000000..7423bdf2 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_va_db.c @@ -0,0 +1,286 @@ +/* + *------------------------------------------------------------------ + * cnat_va_db.c - virtual assembly database + * + * Copyright (c) 2009, 2013 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <cnat_va_db.h> +#include <format.h> +#include <spp_node.h> +#include <spp_alloc.h> +#include <spp_byteorder.h> +#include <spp_main.h> +#include <spp_cache.h> +#include <spp_interface.h> +#include <spp_api.h> +#include <spp_client_api.h> +#include <spp_timers.h> +#include <cnat_db.h> +#include <spp_plugin.h> +#include <cnat_v4_functions.h> + + +va_bucket_t va_bucket[VA_BUCKETS]; + +void va_bucket_init () { + + u32 i; + + /* + * set the pointer in each bucket + * points to nowhere + */ + for (i=0; i<VA_BUCKETS; i++) { + va_bucket[i].next_available_entry = ~0; + } + +} + +inline void va_db_add_new_entry (u32 bucket_index, + va_lookup_key * key ) +{ + + va_entry_t * entry_p; + u32 head, next; + + entry_p = va_db_lookup(bucket_index, key); + + if (PREDICT_FALSE(entry_p)) { + FRAG_DEBUG_PRINTF6( + "\nVA_ADD_NEW: Bucket %d fnd Existng entry [%d, %d] -> [%d, %d]\n", + bucket_index, entry_p->src_port, + entry_p->dst_port, key->e.src_port, key->e.dst_port) + + /* found match entry, update it */ + entry_p->src_port = key->e.src_port; + entry_p->dst_port = key->e.dst_port; + + FRAG_DEBUG_PRINTF3("VA_ADD_NEW: Existing bucket %d, counter %d\n", + bucket_index, + va_bucket[bucket_index].new_entry_counter) + + } else { + + /* no match, add a new one */ + head = va_bucket[bucket_index].head_entry; + next = va_bucket[bucket_index].next_available_entry; + + FRAG_DEBUG_PRINTF5( + "\nVA_ADD_NEW: Filling bucket %d, index %d with key 0x%llx %x\n", + bucket_index, next, key->k.key64, key->k.key32) + + va_bucket[bucket_index].va_entry[next] = key->e; + + /* increase next pointer */ + va_bucket[bucket_index].next_available_entry = (next+1) & VA_BUCKET_MASK; + + if (PREDICT_FALSE(head == va_bucket[bucket_index].next_available_entry)) { + /* adjust head circular pointer */ + va_bucket[bucket_index].head_entry = (head+1) & VA_BUCKET_MASK; + } + + va_bucket[bucket_index].new_entry_counter++; + + FRAG_DEBUG_PRINTF4( + "VA_ADD_NEW: NEW bucket %d, entry %d counter %d\n", + bucket_index, next, va_bucket[bucket_index].new_entry_counter) + } +} + + +/* + * use the key, + * return pointer to the entry if found, + * NULL if not + */ + +inline +va_entry_t * va_db_lookup (u32 bucket_index, va_lookup_key * key) +{ + + u32 index, next; + va_entry_t * entry_p; + va_bucket_t * bucket; + + bucket = &va_bucket[bucket_index]; + index = bucket->head_entry; + next = bucket->next_available_entry; + entry_p = NULL; + + FRAG_DEBUG_PRINTF4( + "\nVA_DB_LOOKUP: bucket index %d head %d next %d\n", + bucket_index, index, next) + + /* loop through the entries in the bucket */ + while( index != next) { + + if(PREDICT_TRUE(memcmp(&bucket->va_entry[index], key, VA_KEY_SIZE)==0)) { + + entry_p = &bucket->va_entry[index]; + /*In add frag entry function we are again assigning key's src + port to entry_p's src port. So when a main DB entry is deleted/ + timed out, and again another entry is created for the same + src ip and src port pair, the frag's entry_p will have the + previous port info stored and not updated. Hence the below + line is not required*/ + + /* *(u32*)&key->e.src_port = *(u32*)&entry_p->src_port; */ + /* do two ports as u32 :) */ + + break; + } + + index = (index +1) & VA_BUCKET_MASK; + + } + +#ifdef FRAG_DEBUG + if (PREDICT_TRUE(entry_p)) { + FRAG_DEBUG_PRINTF3("VA_DB_LOOKUP: bucket index %d entry index %d\n", + bucket_index, index) + FRAG_DEBUG_PRINTF5("VA_DB_LOOKUP: SRC-->DST [0x%x, %d] [0x%x, %d]\n", + entry_p->src_ip, entry_p->src_port, + entry_p->dst_ip, entry_p->dst_port) + FRAG_DEBUG_PRINTF3("[vrf 0x%x, id 0x%x]\n", + entry_p->vrf, entry_p->ip_id) + } else { + FRAG_DEBUG_PRINTF1("\nNULL ENTRY\n") + } +#endif + + return entry_p; + +} + +inline +int va_db_delete_entry (u32 bucket_index, va_lookup_key * key) +{ + + u32 index, next; + int entry_found = 0; + va_bucket_t * bucket; + + bucket = &va_bucket[bucket_index]; + index = bucket->head_entry; + next = bucket->next_available_entry; + + FRAG_DEBUG_PRINTF4( + "\nVA_DB_DELETE_ENTRY: bucket index %d head %d next %d\n", + bucket_index, index, next); + + /* loop through the entries in the bucket */ + while( index != next) { + if(PREDICT_TRUE(memcmp(&bucket->va_entry[index], key, + VA_KEY_SIZE)==0)) { + /* Clear the entry */ + FRAG_DEBUG_PRINTF1("Entry found in delete API"); + memset(&bucket->va_entry[index], 0, sizeof(va_entry_t)); + entry_found = 1; + break; + } + index = (index +1) & VA_BUCKET_MASK; + } + return entry_found; +} + + + +void cnat_va_bucket_used (int argc, unsigned long * argv) +{ + + u32 i, sum = 0;; + + for(i=0;i<VA_BUCKETS;i++) { + + if(PREDICT_TRUE(va_bucket[i].new_entry_counter)) sum++; + + } + + if (PREDICT_FALSE(!sum)) { + printf("no bucket in use\n"); + return; + } + + printf("index head next counter (%d bucket in use)\n", sum); + + for(i=0;i<VA_BUCKETS;i++) { + + if (PREDICT_FALSE(!va_bucket[i].new_entry_counter)) continue; + + printf(" %04d %04d %04d %d\n", i, + va_bucket[i].head_entry, + va_bucket[i].next_available_entry, + va_bucket[i].new_entry_counter); + + } +} + +void cnat_va_dump (int argc, unsigned long * argv) +{ + + u32 i, sum, index ; + + PLATFORM_DEBUG_PRINT("====== SUMMARY ======\n"); + PLATFORM_DEBUG_PRINT("Total buckets: %d\n", VA_BUCKETS); + PLATFORM_DEBUG_PRINT("Entries per bucket: %d\n", VA_ENTRY_PER_BUCKET); + + sum = 0; + + for(i=0; i<VA_BUCKETS; i++) { + if (PREDICT_TRUE(va_bucket[i].new_entry_counter > 0)) sum ++; + } + + PLATFORM_DEBUG_PRINT("buckets in use: %d\n", sum); + + sum = 0; + for(i=0; i<VA_BUCKETS; i++) { + + if ( PREDICT_FALSE(((va_bucket[i].next_available_entry+1) & VA_BUCKET_MASK) + == va_bucket[i].head_entry)) { + + sum ++; + } + } + + PLATFORM_DEBUG_PRINT("bucket full: %d\n", sum); + + /* dump per bucket info */ + + if (argc == 0 ) return; + + index = (u32) argv[0]; + + if (PREDICT_FALSE(index >= VA_BUCKETS)) { + PLATFORM_DEBUG_PRINT("invalid bucket index %d\n", index); + return; + } + + PLATFORM_DEBUG_PRINT("\n====== Bucket %d ======\n", index); + + PLATFORM_DEBUG_PRINT("bucket head index %d\n", va_bucket[index].head_entry); + + PLATFORM_DEBUG_PRINT("bucket next index %d\n", va_bucket[index].next_available_entry); + + PLATFORM_DEBUG_PRINT(" source IP dest IP VRF ip-id srcP dstP\n"); + + for(i=0;i<VA_ENTRY_PER_BUCKET;i++) { + hex_dump((u8*)&va_bucket[index].va_entry[i], sizeof(va_entry_t)); + } + +} diff --git a/plugins/vcgn-plugin/vcgn/cnat_va_db.h b/plugins/vcgn-plugin/vcgn/cnat_va_db.h new file mode 100644 index 00000000..6e0051b4 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/cnat_va_db.h @@ -0,0 +1,121 @@ +/* + *------------------------------------------------------------------ + * cnat_va_db.h - definition for virtual assembly database + * + * Copyright (c) 2013 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ + +#ifndef __CNAT_VA_DB_H__ +#define __CNAT_VA_DB_H__ + +#include <clib_lite.h> + +#define FRAG_DEBUG 1 + +/* virtual assemble hash database size ~ 16B x 64K = 1MB */ + +#define VA_TOTAL_ENTRIES (64*1024) +#define VA_ENTRY_PER_BUCKET (8) /* make sure size is power of 2 for circular FIFO */ +#define VA_BUCKET_MASK (VA_ENTRY_PER_BUCKET -1) +#define VA_BUCKETS (VA_TOTAL_ENTRIES / VA_ENTRY_PER_BUCKET) +#define VA_KEY_SIZE 12 + +typedef struct _va_entry { + /* key: top 12 bytes */ + u32 src_ip; + u32 dst_ip; + u16 vrf; /* overloaded with protocol info with top two bits */ + u16 ip_id; + + /* values */ + u16 src_port; + u16 dst_port; +} va_entry_t; + +typedef struct _va_keys { + u64 key64; /* src & dst IP */ + u32 key32; /* vrf, protocol and ip_id */ +} va_keys; + +typedef union { + va_entry_t e; + va_keys k; +} va_lookup_key; + +typedef struct _va_bucket_t { + u32 head_entry; + u32 next_available_entry; /* ~0 for empty bucket */ + u32 new_entry_counter; /* for debug purpose */ + va_entry_t va_entry[VA_ENTRY_PER_BUCKET]; +} va_bucket_t; + +extern va_bucket_t va_bucket[]; /* hash table in cnat_va_db.c */ + +void va_bucket_init (); + +inline void va_db_add_new_entry (u32 bucket_index, va_lookup_key * ); +inline int va_db_delete_entry (u32 bucket_index, va_lookup_key * ); +inline va_entry_t * va_db_lookup (u32 bucket_index, va_lookup_key * key); + +#ifdef FRAG_DEBUG + +#define FRAG_DEBUG_PRINTF1(a) \ + if (frag_debug_flag) { \ + PLATFORM_DEBUG_PRINT(a); \ + } + +#define FRAG_DEBUG_PRINTF2(a, b) \ + if (frag_debug_flag) { \ + PLATFORM_DEBUG_PRINT(a, b); \ + } + +#define FRAG_DEBUG_PRINTF3(a, b, c) \ + if (frag_debug_flag) { \ + PLATFORM_DEBUG_PRINT(a, b, c); \ + } + +#define FRAG_DEBUG_PRINTF4(a, b, c, d) \ + if (frag_debug_flag) { \ + PLATFORM_DEBUG_PRINT(a, b, c, d); \ + } + +#define FRAG_DEBUG_PRINTF5(a, b, c, d, e) \ + if (frag_debug_flag) { \ + PLATFORM_DEBUG_PRINT(a, b, c, d, e); \ + } + +#define FRAG_DEBUG_PRINTF6(a, b, c, d, e, f) \ + if (frag_debug_flag) { \ + PLATFORM_DEBUG_PRINT(a, b, c, d, e, f); \ + } +#else + +#define FRAG_DEBUG_PRINTF1(a) + +#define FRAG_DEBUG_PRINTF2(a, b) + +#define FRAG_DEBUG_PRINTF3(a, b, c) + +#define FRAG_DEBUG_PRINTF4(a, b, c, d) + +#define FRAG_DEBUG_PRINTF5(a, b, c, d, e) + +#define FRAG_DEBUG_PRINTF6(a, b, c, d, e, f) + +#endif + +#endif /* __CNAT_VA_DB_H__ */ + + diff --git a/plugins/vcgn-plugin/vcgn/dslite_db.h b/plugins/vcgn-plugin/vcgn/dslite_db.h new file mode 100644 index 00000000..2269b98c --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/dslite_db.h @@ -0,0 +1,170 @@ +/* + *------------------------------------------------------------------ + * dslite_db.h - Stateful DSLITE translation database definitions + * + * Copyright (c) 2010-2013 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ +#ifndef __DSLITE_DB_H__ +#define __DSLITE_DB_H__ + +#include "cnat_cli.h" +#include "index_list.h" +#include "cnat_ports.h" +#include "cnat_db.h" +#include "dslite_defs.h" + +#define DSLITE_PRINTF(level, ...) \ + if (dslite_debug_level > level) PLATFORM_DEBUG_PRINT(__VA_ARGS__); +/* +#define DSLITE_PRINTF(lvl, ...) \ +{ \ + avsm_dispatlib_debug (__VA_ARGS__); \ +} +*/ + +#define HASH_ENHANCE 4 +//#define DSLITE_DEF +#define DSLITE_MAIN_DB_SIZE (20000000 / PLATFORM_CNAT_INSTS) +#define DSLITE_MAIN_HASH_SIZE \ + (HASH_ENHANCE * PLATFORM_CNAT_MAIN_PRELIM_HASH_SIZE) + +#define DSLITE_MAIN_HASH_MASK (DSLITE_MAIN_HASH_SIZE-1) + + +/* nb: 200000 users / 64 CNAT = 3125, 76% occupancy */ +#define DSLITE_USER_HASH_SIZE CNAT_USER_HASH_SIZE +#define DSLITE_USER_HASH_MASK (DSLITE_USER_HASH_SIZE-1) + +/* No. of per ip/port config will be limited to 1000 */ +#define DSLITE_TIMEOUT_HASH_SIZE 1000 +#define DSLITE_TIMEOUT_HASH_MASK (DSLITE_TIMEOUT_HASH_SIZE - 1) +#define DSLITE_TIMEOUT_FULL_MASK 0xFFFFFFFFFFFFFFFF + +#define CNAT_MAX_SESSIONS_PER_BIB 0xFFFF + +#define FORCE_DEL 1 /* Delete static BIB entries as well */ + +/* default timeout values */ +#define DSLITE_UDP_DEFAULT 300 /* 5 min */ +#define DSLITE_UDP_MIN 120 /* 2 min */ +#define DSLITE_TCP_TRANS 240 /* 4 min */ +#define DSLITE_TCP_EST 7200 /* 2 hrs */ +#define DSLITE_TCP_V4_SYN 6 /* 6 sec */ +#define DSLITE_FRAG_MIN 2 /* 2 sec */ +#define DSLITE_ICMP_DEFAULT 60 /* 1 min */ + +extern u32 dslite_translation_create_count; +extern u32 dslite_translation_delete_count; +extern u32 dslite_translation_create_rate; +extern u32 dslite_translation_delete_rate; +extern u32 dslite_in2out_forwarding_count; +extern u32 dslite_in2out_forwarding_rate; +extern u32 dslite_out2in_forwarding_count; +extern u32 dslite_out2in_forwarding_rate; + +#define DSLITE_V6_GET_HASH(in_key, hash, mask) \ + a = in_key->ipv6[0] ^ in_key->ipv6[1] ^ in_key->ipv6[2] ^ in_key->ipv6[3] \ + ^ in_key->ipv4_key.k.ipv4 ^ ((in_key->ipv4_key.k.port << 16) | in_key->ipv4_key.k.vrf); \ + DSLITE_PRINTF(1, "%x:%x:%x:%x:%x:%x:%x\n", in_key->ipv6[0], in_key->ipv6[1], in_key->ipv6[2], in_key->ipv6[3], \ + in_key->ipv4_key.k.ipv4, in_key->ipv4_key.k.port, in_key->ipv4_key.k.vrf); \ + b = c = 0x9e3779b9;\ + /* Jenkins hash, arbitrarily use c as the "answer" */ \ + hash_mix32(a, b, c); \ + hash = c & mask; \ + + +#define DSLITE_V6_GET_USER_HASH(ipv6, hash, mask) \ + a = ipv6[0] ^ ipv6[1] ^ ipv6[2] ^ ipv6[3]; \ + b = c = 0x9e3779b9;\ + /* Jenkins hash, arbitrarily use c as the "answer" */ \ + hash_mix32(a, b, c); \ + hash = c & mask; \ + +#define DSLITE_V4_GET_HASH(in_key, hash, mask) \ + a = in_key.ipv4 ^ ((in_key.port << 16) | in_key.vrf); \ + b = c = 0x9e3779b9; \ + /* Jenkins hash, arbitrarily use c as the "answer" */ \ + hash_mix32(a, b, c); \ + hash = c & mask; + +#define PRIVATE_V4_ADDR_CHECK(addr, invalid) \ + invalid = 0; \ + int range1 = ((addr & 0xFF000000) >> 24); \ + int range2 = ((addr & 0xFFF00000) >> 20); \ + int range3 = ((addr & 0xFFFF0000) >> 16); \ + int range4 = ((addr & 0xFFFFFFF8) >> 3); \ + if(range1 != 0xa && range2 != 0xac1 && range3 != 0xc0a8 && range4 != 0x18000000) \ + invalid = 1; + +#define V4_MAPPED_V6_CHECK(v6_addr, invalid) \ + invalid = 0; \ + int word1 = v6_addr[0]; \ + int word2 = v6_addr[1]; \ + int word3 = v6_addr[2]; \ + if(!((word1 == 0) && (word2 == 0) && (word3 == 0x0000FFFF))) \ + invalid = 1; + + +extern dslite_table_entry_t dslite_table_array[DSLITE_MAX_DSLITE_ENTRIES]; +extern dslite_table_entry_t *dslite_table_ptr; + +#define DSLITE_CMP_V6_KEY(key1, key2) \ + memcmp(key1, key2, sizeof(dslite_v6_key_t)) + +#define DSLITE_CMP_V4_KEY(key1, key2) \ + memcmp(key1, key2, sizeof(dslite_v4_key_t)) + + +#define DSLITE_CMP_V6_IP(ip1, ip2) \ + memcmp(ip1, ip2, (sizeof(u32) * 4)) + + +#define DSLITE_CMP_V6_KEY1(key1, key2) \ + (key1.ipv6[0] == key2.ipv6[0]) && (key1.ipv6[1] == key2.ipv6[1]) && \ + (key1.ipv6[2] == key2.ipv6[2]) && (key1.ipv6[3] == key2.ipv6[3]) && \ + (key1.port == key2.port) && (key1.vrf == key2.vrf) + + +#define DSLITE_CMP_V6_IP1(ip1, ip2) \ + ((ip1[0] == ip2[0]) && (ip1[1] == ip2[1]) && \ + (ip1[2] == ip2[2]) && (ip1[3] == ip2[3])) + +#define DSLITE_CMP_V4_KEY1(key1, key2) \ + (key1.key64 == key2.key64) + +cnat_main_db_entry_t* +dslite_get_main_db_entry_v2(dslite_db_key_bucket_t *ki, + port_pair_t port_pair_type, + port_type_t port_type, + cnat_gen_icmp_info *info, + dslite_table_entry_t *dslite_entry_ptr, + cnat_key_t *dest_info); + +cnat_main_db_entry_t* +dslite_main_db_lookup_entry(dslite_db_key_bucket_t *ki); + + +cnat_user_db_entry_t* +dslite_user_db_lookup_entry(dslite_db_key_bucket_t *uki); + +cnat_user_db_entry_t* +dslite_user_db_create_entry(dslite_db_key_bucket_t *uki, u32 portmap_index); + +cnat_main_db_entry_t* +dslite_create_main_db_entry_and_hash(dslite_db_key_bucket_t *ki, + cnat_db_key_bucket_t *ko, + cnat_user_db_entry_t *udb); + +#endif diff --git a/plugins/vcgn-plugin/vcgn/dslite_defs.h b/plugins/vcgn-plugin/vcgn/dslite_defs.h new file mode 100644 index 00000000..4860adcb --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/dslite_defs.h @@ -0,0 +1,336 @@ +/* + *------------------------------------------------------------------ + * dslite_defs.h - DSLITE structure definiitions + * + * Copyright (c) 2011-2012 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ + +#ifndef __DSLITE_DEFS_H__ +#define __DSLITE_DEFS_H__ + +#ifdef TOBE_PORTED +#include "spp_platform_common.h" +#include "cgse_defs.h" +#endif +#include "cnat_cli.h" +#include "cnat_config.h" +#include "cnat_ports.h" +#include "cnat_bulk_port_defs.h" + +extern u32 ds_lite_config_debug_level; + +#define SWAP_IPV6_ADDR(ipv6_hdr, dslite_entry_ptr) \ + ipv6_hdr->dst_addr[0] = ipv6_hdr->src_addr[0]; \ + ipv6_hdr->dst_addr[1] = ipv6_hdr->src_addr[1]; \ + ipv6_hdr->dst_addr[2] = ipv6_hdr->src_addr[2]; \ + ipv6_hdr->dst_addr[3] = ipv6_hdr->src_addr[3]; \ + ipv6_hdr->src_addr[0] = spp_host_to_net_byte_order_32(dslite_entry_ptr->AFTR_v6_address[0]); \ + ipv6_hdr->src_addr[1] = spp_host_to_net_byte_order_32(dslite_entry_ptr->AFTR_v6_address[1]); \ + ipv6_hdr->src_addr[2] = spp_host_to_net_byte_order_32(dslite_entry_ptr->AFTR_v6_address[2]); \ + ipv6_hdr->src_addr[3] = spp_host_to_net_byte_order_32(dslite_entry_ptr->AFTR_v6_address[3]); + +#define DSLITE_SET_TX_PKT_TYPE(type) { \ + ctx->ru.tx.packet_type = type; \ +} + +#define DSLITE_INC_STATS_V4(PTR, COUNTER, IPV4_SRC_ADDR) { \ + PTR->COUNTER++; \ +} + +#define DSLITE_INC_STATS_V6(PTR, COUNTER, IPV6_DEST_ADDR) { \ + PTR->COUNTER++; \ +} + + +#define DSLITE_INVALID_UIDX 0xffff /*invalid svi app uidb index */ +#define DSLITE_INVALID_VRFID 0xffffffff /*invalid vrf id */ + +#define DSLITE_VRF_MASK 0x3fff +#define DSLITE_MAX_VRFMAP_ENTRIES (DSLITE_VRF_MASK + 1) + +#define DSLITE_VRFMAP_ENTRY_INVALID 0xffff + +#define DSLITE_V6_PREFIX_MASK_MIN 16 +#define DSLITE_V6_PREFIX_MASK_MAX 96 +#define DSLITE_V6_PREFIX_MASK_MULTIPLE 8 + +#define DSLITE_TUNNEL_MTU_MIN 1280 +#define DSLITE_TUNNEL_MTU_MAX 9216 + +#define DSLITE_TUNNEL_TTL_MIN 0 +#define DSLITE_TUNNEL_TTL_MAX 255 + +#define DSLITE_TUNNEL_TOS_MIN 0 +#define DSLITE_TUNNEL_TOS_MAX 255 + +#define DSLITE_V4_MASK_MAX 32 + +//#define XLAT_MAX_FRAG_ID_COUNTERS (256) +#define DSLITE_AFTR_IPV4_ADDR 0xC0000001 + +#define DSLITE_MAX_TAP_RG_ENTRIES 2 +#define DSLITE_MAX_DSLITE_ENTRIES (256) +#define DSLITE_MAX_DSLITE_ID (DSLITE_MAX_DSLITE_ENTRIES-1) +/* Define the below value as 64 if first 64 entries are for NAT44 */ +#define DSLITE_INDEX_OFFSET 1 + +#define DSLITE_INVALID_DSLITE_ID (0) + +#define DSLITE_TABLE_ENTRY_DELETED 0 +#define DSLITE_TABLE_ENTRY_ACTIVE 1 +#define DSLITE_TABLE_ENTRY_DORMANT 2 +#define DSLITE_TABLE_ENTRY_INVALID_UIDB 3 + +typedef struct { + u16 tcp_initial_setup_timeout; + u16 tcp_active_timeout; + u16 udp_init_session_timeout; + u16 udp_act_session_timeout; + u16 icmp_session_timeout; + u16 temp; +} dslite_timeout_info_t; + + +typedef struct { + + u16 state; /* To use nat44 enums ?? TBD */ + u16 dslite_id; /* DSLITE_ID value for this table entry - for easy access */ + + u16 i_vrf; /* V6 uidb index */ + u16 o_vrf; /* V4 uidb index */ + + u16 cnat_main_db_max_ports_per_user; /* port limit */ + u16 tcp_mss; /*tcp max segment size for this inside vrf */ + + u32 delete_time; + + cnat_portmap_v2_t *portmap_list; + + u32 nfv9_logging_index; + u32 syslog_logging_index; + u32 AFTR_v6_address[4]; + +#define DSLITE_IPV4_TOS_OVERRIDE_FLAG 0x00000001 +#define DSLITE_IPV6_TOS_OVERRIDE_FLAG 0x00000002 +#define DSLITE_IPV4_TTL_OVERRIDE_FLAG 0x00000004 +#define DSLITE_IPV6_TTL_OVERRIDE_FLAG 0x00000008 +#define DSLITE_IPV6_FRAG_REASSEMB_ENG 0x00000010 +#define DSLITE_FTP_ALG_ENABLE 0x00000020 +#define DSLITE_RTSP_ALG_ENABLE 0x00000040 +#define DSLITE_NETFLOW_ENABLE 0x00000080 +#define DSLITE_SYSLOG_ENABLE 0x00000100 + + u16 feature_flags; + u16 tunnel_mtu; + + u8 ipv4_ttl_value; + u8 ipv6_ttl_value; + u8 ipv4_tos_value; + u8 ipv6_tos_value; + + u32 v4_if_num; /* V4 SVI ifnum */ + u32 v6_if_num; /* V6 SVI ifnum */ + u32 i_vrf_id; //inside vrf id + u32 o_vrf_id; //outside vrf id + + dslite_timeout_info_t timeout_info; + u16 cnat_static_port_range; + u16 dyn_start_port; + + u32 AFTR_v4_addr; + bulk_alloc_size_t bulk_size; /* should be equivalent to u16 - 2 bytes */ + u32 pcp_server_addr; + u16 pcp_server_port; + u8 mapping_refresh_both_direction; + u8 pad; + u16 rtsp_port; +#define DSLITE_BIDIR_REFRESH 1 + u8 dslite_enable; /* DS-Lite enable check flag */ + u8 syslog_logging_policy; /* DS-Lite Session Logging check flag */ + u8 nf_logging_policy; + + u8 temp1; + u16 temp2; + u32 temp3; + u32 rseed_ip; +} dslite_table_entry_t; + +typedef struct { + u64 v4_to_v6_invalid_uidb_drop_count; + u64 v6_to_v4_invalid_uidb_drop_count; + u64 v4_to_v6_frag_invalid_uidb_drop_count; +} dslite_global_counters_t; + +typedef struct { + u32 tap_enable; + u32 ipv4_addr; + u32 ipv6_addr[4]; +} dslite_tap_rg_t; + +extern dslite_table_entry_t *dslite_table_db_ptr; + + +#define DSLITE_ADD_UIDB_INDEX_DSLITE_ID_MAPPING(uidb_index, dslite_id) \ + *(cgse_uidb_index_cgse_id_mapping_ptr + uidb_index) = dslite_id; + +extern u8 my_instance_number; + +extern void dslite_clear_counters(u16 dslite_id); +extern void dslite_clear_per_RG_counters(); +extern dslite_global_counters_t dslite_global_counters; +extern u32 dslite_config_debug_level; +extern u32 dslite_data_path_debug_level; +extern u32 dslite_defrag_debug_level; +extern u32 dslite_debug_level; + +typedef struct { + u64 v6_to_v4_tcp_input_count; + u64 v6_to_v4_tcp_nat_error; + u64 v6_to_v4_tcp_output_count; +} dslite_v6_to_v4_tcp_counter_t; + +typedef struct { + u64 v4_to_v6_tcp_input_count; + u64 v4_to_v6_tcp_no_entry; + u64 v4_to_v6_tcp_output_count; +} dslite_v4_to_v6_tcp_counter_t; + +typedef struct { + u64 v6_to_v4_udp_input_count; + u64 v6_to_v4_udp_nat_error; + u64 v6_to_v4_udp_output_count; +} dslite_v6_to_v4_udp_counter_t; + +typedef struct { + u64 v4_to_v6_udp_input_count; + u64 v4_to_v6_udp_no_entry; + u64 v4_to_v6_udp_output_count; +} dslite_v4_to_v6_udp_counter_t; + +typedef struct { + u64 v6_to_v4_icmp_qry_input_count; + u64 v6_to_v4_icmp_qry_nat_error; + u64 v6_to_v4_icmp_qry_output_count; +} dslite_v6_to_v4_icmp_qry_counter_t; + +typedef struct { + u64 v4_to_v6_icmp_qry_input_count; + u64 v4_to_v6_icmp_qry_no_nat_entry; + u64 v4_to_v6_icmp_qry_output_count; +} dslite_v4_to_v6_icmp_qry_counter_t; + +typedef struct { + u64 v6_to_v4_icmp_error_input_count; + u64 v6_to_v4_icmp_error_nat_error; + u64 v6_to_v4_icmp_error_output_count; +} dslite_v6_to_v4_icmp_error_counter_t; + +typedef struct { + u64 v4_to_v6_icmp_error_input_count; + u64 v4_to_v6_icmp_error_no_nat_entry; + u64 v4_to_v6_icmp_error_output_count; +} dslite_v4_to_v6_icmp_error_counter_t; + +typedef struct { + u64 v6_icmp_error_input_count; + u64 v6_AFTR_echo_reply_count; + u64 v6_to_v4_icmp_error_unsupported_type_drop_count; + u64 v6_to_v4_icmp_error_no_db_entry_count; + u64 v6_to_v4_icmp_err_throttled_count; + u64 v6_to_v4_icmp_error_xlated_count; +} dslite_v6_icmp_error_counter_t; + +typedef struct { + u64 v4_to_v6_ttl_gen_count; + u64 v4_to_v6_icmp_throttle_count; + u64 v4_to_v6_ptb_gen_count; + u64 v4_to_v6_aftr_v4_echo_reply_count; + u64 v6_to_v4_ttl_gen_count; + u64 v6_to_v4_icmp_throttle_count; + u64 v6_to_v4_admin_prohib_icmp_count; + u64 v6_to_v4_aftr_v4_echo_reply_count; + u64 v6_icmp_gen_count; +} dslite_icmp_gen_counter_t; + +typedef struct { + u64 dslite_input_tunnel_pkt; + u64 dslite_encap_count; + u64 dslite_decap_count; + u64 dslite_sec_check_failed; + u64 dslite_unsupp_packet; +} dslite_common_counter_t; + +typedef struct { + + dslite_v6_to_v4_tcp_counter_t v64_tcp_counters; + dslite_v4_to_v6_tcp_counter_t v46_tcp_counters; + dslite_v6_to_v4_udp_counter_t v64_udp_counters; + dslite_v4_to_v6_udp_counter_t v46_udp_counters; + dslite_v6_to_v4_icmp_qry_counter_t v64_icmp_counters; + dslite_v4_to_v6_icmp_qry_counter_t v46_icmp_counters; + dslite_v6_to_v4_icmp_error_counter_t v64_icmp_error_counters; + dslite_v4_to_v6_icmp_error_counter_t v46_icmp_error_counters; + dslite_v6_icmp_error_counter_t dslite_v6_icmp_err_counters; + dslite_icmp_gen_counter_t dslite_icmp_gen_counters; + dslite_common_counter_t dslite_common_counters; +} dslite_counters_t; + +typedef struct { + u32 active_translations; + u32 translation_create_rate; + u32 translation_delete_rate; + u32 in2out_forwarding_rate; + u32 out2in_forwarding_rate; + u32 in2out_drops_port_limit_exceeded; + u32 in2out_drops_system_limit_reached; + u32 in2out_drops_resource_depletion; + u32 no_translation_entry_drops; + u32 pool_address_totally_free; + u32 num_subscribers; + u32 dummy; + u64 drops_sessiondb_limit_exceeded; +} dslite_common_stats_t; + +typedef struct { + u16 msg_id; + u8 rc; + u8 pad[5]; + dslite_counters_t counters; +} dslite_show_statistics_summary_resp; + + +#define CMD_GENERATE_PTB 0x1 +#define CMD_GENERATE_TTL 0x2 + +/* + * This structure is to provide abstraction for data exchanged from one + * VPP node to its disposition or further in the dslite node graph. + */ +typedef struct { + u32 icmp_gen_type; // ctx->feature_data[0] + u32 reserved1; // ctx->feature_data[1] + u32 reserved2; // ctx->feature_data[2] + u32 reserved3; // ctx->feature_data[3] +} dslite_feature_data_t; + +extern dslite_counters_t dslite_all_counters[DSLITE_MAX_DSLITE_ENTRIES]; +//extern dslite_inst_gen_counter_t dslite_inst_gen_counters[DSLITE_MAX_DSLITE_ENTRIES]; + + + extern void dslite_show_config(void); +#define STAT_PORT_RANGE_FROM_INST_PTR(inst) ((inst)->cnat_static_port_range) + +#endif /* __DSLITE_DEFS_H__ */ + diff --git a/plugins/vcgn-plugin/vcgn/index_list.c b/plugins/vcgn-plugin/vcgn/index_list.c new file mode 100644 index 00000000..ec1b83b0 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/index_list.c @@ -0,0 +1,336 @@ +/* + *------------------------------------------------------------------ + * index_list.c - vector-index-based lists. 64-bit pointers suck. + * + * Copyright (c) 2008-2009, 2011 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ + +#include <stdio.h> +#include <string.h> +//#include <clib_lite.h> +#include <vppinfra/vec.h> +#include "index_list.h" + +/* + * index_slist_addhead + * + * args: headp -- pointer to e.g. a hash bucket + * vector -- vector containing the list + * elsize -- size of an element in this vector + * offset -- offset in each vector element of this list thread + * index_to_add -- index in the vector to add to the list + * + * Adds new items to the head of the list. Try not to screw up the args! + */ +void index_slist_addhead (index_slist_t *headp, + u8 *vector, u32 elsize, u32 offset, u32 index_to_add) +{ + return (index_slist_addhead_inline(headp, vector, elsize, offset, + index_to_add)); +} + +/* + * index_slist_remelem + * + * args: headp -- pointer to e.g. a hash bucket + * vector -- vector containing the list + * elsize -- size of an element in this vector + * offset -- offset in each vector element of this list thread + * index_to_del -- index in the vector to delete from the list + * + * Try not to screw up the args! + */ + +int index_slist_remelem (index_slist_t *headp, + u8 *vector, u32 elsize, u32 offset, + u32 index_to_delete) +{ + return (index_slist_remelem_inline(headp, vector, elsize, offset, + index_to_delete)); +} + + +/* + * index_dlist_addtail + * + * Append the indicated vector element to the doubly-linked list + * whose first element is pointed to by headp. + * + * args: head_index -- listhead vector element index. + * vector -- vector containing the list + * elsize -- size of an element in this vector + * offset -- offset in each vector element of this list thread + * index_to_add -- index in the vector to add to the list + * + * Do not call this routine to create the listhead. Simply set + * index_dlist->next = index_dlist->prev = index of item. + * + * Try not to screw up the args. + */ + +void index_dlist_addtail (u32 head_index, u8 *vector, u32 elsize, + u32 offset, u32 index_to_add) +{ + index_dlist_t *elp; + index_dlist_t *elp_next; + index_dlist_t *headp; + + headp = (index_dlist_t *)(vector + offset + elsize*head_index); + elp = (index_dlist_t *)(vector + offset + elsize*index_to_add); + elp->next = index_to_add; + elp->prev = index_to_add; + + elp->next = headp->next; + headp->next = index_to_add; + + elp_next = (index_dlist_t *)(vector + offset + elsize*elp->next); + elp->prev = elp_next->prev; + elp_next->prev = index_to_add; +} + +u32 index_dlist_remelem (u32 head_index, + u8 *vector, u32 elsize, u32 offset, + u32 index_to_delete) +{ + u32 rv = head_index; + index_dlist_t *headp, *elp, *elp_next; + + elp = (index_dlist_t *)(vector + offset + elsize*index_to_delete); + + /* Deleting the head index? */ + if (PREDICT_FALSE(head_index == index_to_delete)) { + rv = elp->next; + /* The only element on the list? */ + if (PREDICT_FALSE(rv == head_index)) + rv = EMPTY; + } + + headp = (index_dlist_t *)(vector + offset + elsize*elp->prev); + headp->next = elp->next; + elp_next = (index_dlist_t *)(vector + offset + elsize*elp->next); + elp_next->prev = elp->prev; + + elp->next = elp->prev = EMPTY; + + return rv; +} + + +#ifdef TEST_CODE2 + +typedef struct tv_ { + char junk[43]; + index_dlist_t l; +} tv_t; + + +void index_list_test_cmd(int argc, unsigned long *argv) +{ + int i, j; + u32 head_index; + index_dlist_t *headp; + tv_t *tp=0; + + vec_validate(tp, 3); + head_index = 3; + + memset(tp, 0xa, sizeof(tp[0])*vec_len(tp)); + + /* Here's how to set up the head element... */ + headp = &((tp + head_index)->l); + headp->next = headp->prev = head_index; + + for (i = 0; i < 3; i++) { + index_dlist_addtail(head_index, (u8 *)tp, sizeof(tp[0]), + STRUCT_OFFSET_OF(tv_t, l), i); + printf("headp next %d prev %d\n", + headp->next, headp->prev); + for (j = 0; j <= 3; j++) { + printf ("[%d]: next %d prev %d\n", j, + tp[j].l.next, tp[j].l.prev); + } + printf("---------------\n"); + + } + + printf("After all adds:\n"); + + printf("headp next %d prev %d\n", + headp->next, headp->prev); + + for (j = 0; j <= 3; j++) { + printf ("[%d]: next %d prev %d\n", j, + tp[j].l.next, tp[j].l.prev); + } + printf("---------------\n"); + + head_index = index_dlist_remelem (head_index, (u8 *)tp, sizeof(tp[0]), + STRUCT_OFFSET_OF(tv_t, l), 1); + + printf("after delete 1, head index %d\n", head_index); + headp = &((tp + head_index)->l); + printf("headp next %d prev %d\n", + headp->next, headp->prev); + for (j = 0; j <= 3; j++) { + printf ("[%d]: next %d prev %d\n", j, + tp[j].l.next, tp[j].l.prev); + } + printf("---------------\n"); + + index_dlist_addtail(head_index, (u8 *)tp, sizeof(tp[0]), + STRUCT_OFFSET_OF(tv_t, l), 1); + + printf("after re-add 1, head index %d\n", head_index); + headp = &((tp + head_index)->l); + printf("headp next %d prev %d\n", + headp->next, headp->prev); + for (j = 0; j <= 3; j++) { + printf ("[%d]: next %d prev %d\n", j, + tp[j].l.next, tp[j].l.prev); + } + printf("---------------\n"); + + for (i = 3; i >= 0; i--) { + head_index = index_dlist_remelem (head_index, (u8 *)tp, sizeof(tp[0]), + STRUCT_OFFSET_OF(tv_t, l), i); + printf("after delete, head index %d\n", head_index); + if (head_index != EMPTY) { + headp = &((tp + head_index)->l); + printf("headp next %d prev %d\n", + headp->next, headp->prev); + for (j = 0; j <= 3; j++) { + printf ("[%d]: next %d prev %d\n", j, + tp[j].l.next, tp[j].l.prev); + } + } else { + printf("empty list\n"); + } + printf("---------------\n"); + } +} +#endif /* test code 2 */ + +#ifdef TEST_CODE + +typedef struct tv_ { + char junk[43]; + index_slist_t l; +} tv_t; + + +void index_list_test_cmd(int argc, unsigned long *argv) +{ + int i, j; + tv_t *tp = 0; + index_slist_t *buckets = 0; + + vec_add1((u32 *)buckets, EMPTY); + vec_validate(tp, 9); + + for (i = 0; i < 10; i++) { + index_slist_addhead(buckets, (u8 *)tp, sizeof(*tp), + STRUCT_OFFSET_OF(tv_t, l), i); + } + + printf ("after adds, buckets[0] = %u\n", buckets[0]); + + for (j = 0; j < 10; j++) { + printf("tp[%d] next %u\n", j, tp[j].l); + + } + + for (i = 0; i < 10; i++) { + if (PREDICT_FALSE(index_slist_remelem(buckets, (u8 *) tp, sizeof(*tp), + STRUCT_OFFSET_OF(tv_t, l), i))) { + printf("OUCH: remelem failure at index %d\n", i); + } + if (PREDICT_FALSE(tp[i].l.next != EMPTY)) { + printf("OUCH: post-remelem next not EMPTY, index %d\n", i); + } + } + + printf ("after deletes, buckets[0] = %x\n", buckets[0]); + + for (i = 0; i < 10; i++) { + index_slist_addhead(buckets, (u8 *)tp, sizeof(*tp), + STRUCT_OFFSET_OF(tv_t, l), i); + } + + printf ("after adds, buckets[0] = %u\n", buckets[0]); + + for (j = 0; j < 10; j++) { + printf("tp[%d] next %u\n", j, tp[j].l); + + } + + for (i = 9; i >= 0; i--) { + if (PREDICT_FALSE(index_slist_remelem(buckets, (u8 *) tp, sizeof(*tp), + STRUCT_OFFSET_OF(tv_t, l), i))) { + printf("OUCH: remelem failure at index %d\n", i); + } + if ((tp[i].l.next != EMPTY)) { + printf("OUCH: post-remelem next not EMPTY, index %d\n", i); + } + } + + printf ("after deletes, buckets[0] = %x\n", buckets[0]); + + printf("add evens, then odds...\n"); + + for (i = 0; i < 10; i += 2) { + index_slist_addhead(buckets, (u8 *)tp, sizeof(*tp), + STRUCT_OFFSET_OF(tv_t, l), i); + + printf ("head = buckets[0].next = %d\n", buckets[0].next); + for (j = 0; j < 10; j++) { + printf("tp[%d] next %u\n", j, tp[j].l); + } + printf("-------------\n"); + } + + for (i = 1; i < 10; i += 2) { + index_slist_addhead(buckets, (u8 *)tp, sizeof(*tp), + STRUCT_OFFSET_OF(tv_t, l), i); + + printf ("head = buckets[0].next = %d\n", buckets[0].next); + for (j = 0; j < 10; j++) { + printf("tp[%d] next %u\n", j, tp[j].l); + } + printf("-------------\n"); + } + + printf ("after adds, buckets[0] = %u\n", buckets[0]); + + for (j = 0; j < 10; j++) { + printf("tp[%d] next %u\n", j, tp[j].l); + + } + + for (i = 9; i >= 0; i--) { + if (PREDICT_FALSE(index_slist_remelem(buckets, (u8 *) tp, sizeof(*tp), + STRUCT_OFFSET_OF(tv_t, l), i))) { + printf("OUCH: remelem failure at index %d\n", i); + } + if (PREDICT_FALSE(tp[i].l.next != EMPTY)) { + printf("OUCH: post-remelem next not EMPTY, index %d\n", i); + } + } + + printf ("after deletes, buckets[0] = %x\n", buckets[0]); + + vec_free(buckets); + vec_free(tp); +} +#endif /* test code */ diff --git a/plugins/vcgn-plugin/vcgn/index_list.h b/plugins/vcgn-plugin/vcgn/index_list.h new file mode 100644 index 00000000..498cd7eb --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/index_list.h @@ -0,0 +1,118 @@ +/* + *------------------------------------------------------------------ + * index_list.h - vector-index-based doubly-linked lists + * + * Copyright (c) 2008-2009 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ + +#ifndef _INDEX_LIST_H_ +#define _INDEX_LIST_H_ 1 + +/* An index we can't possibly see in practice... */ +#define EMPTY ((u32)~0) + +typedef struct index_slist_ { + u32 next; +} index_slist_t; + +/* + * index_slist_addhead + * + * args: headp -- pointer to e.g. a hash bucket + * vector -- vector containing the list + * elsize -- size of an element in this vector + * offset -- offset in each vector element of this list thread + * index_to_add -- index in the vector to add to the list + * + * Adds new items to the head of the list. Try not to screw up the args! + */ +static inline void + index_slist_addhead_inline (index_slist_t *headp, + u8 *vector, u32 elsize, + u32 offset, u32 index_to_add) +{ + index_slist_t *addme; + + addme = (index_slist_t *)(vector + offset + elsize*index_to_add); + addme->next = EMPTY; + + if (headp->next == EMPTY) { + headp->next = index_to_add; + return; + } else { + addme->next = headp->next; + headp->next = index_to_add; + } +} + +/* + * index_slist_remelem + * + * args: headp -- pointer to e.g. a hash bucket + * vector -- vector containing the list + * elsize -- size of an element in this vector + * offset -- offset in each vector element of this list thread + * index_to_del -- index in the vector to delete from the list + * + * Try not to screw up the args! + */ + +static inline int + index_slist_remelem_inline (index_slist_t *headp, + u8 *vector, u32 elsize, + u32 offset, u32 index_to_delete) +{ + index_slist_t *findme; + index_slist_t *prev; + index_slist_t *cur; + + findme = (index_slist_t *)(vector + offset + elsize*index_to_delete); + + if (headp->next == index_to_delete) { + headp->next = findme->next; + findme->next = EMPTY; + return 0; + } + + prev = (index_slist_t *)(vector + offset + elsize*headp->next); + cur = (index_slist_t *)(vector + offset + elsize*prev->next); + while (cur != findme) { + if (cur->next == EMPTY) + return (1); + prev = cur; + cur = (index_slist_t *)(vector + offset + elsize*cur->next); + } + prev->next = findme->next; + findme->next = EMPTY; + return 0; +} + +void index_slist_addhead (index_slist_t *headp, + u8 *vector, u32 elsize, u32 offset, u32 index); +int index_slist_remelem (index_slist_t *headp, + u8 *vector, u32 elsize, u32 offset, u32 index); + +typedef struct index_dlist_ { + u32 next; + u32 prev; +} index_dlist_t; + +void index_dlist_addtail (u32 head_index, u8 *vector, u32 elsize, + u32 offset, u32 index_to_add); + +u32 index_dlist_remelem (u32 head_index, + u8 *vector, u32 elsize, u32 offset, + u32 index_to_delete); +#endif /* _INDEX_LIST_H_ */ diff --git a/plugins/vcgn-plugin/vcgn/nat64_db.h b/plugins/vcgn-plugin/vcgn/nat64_db.h new file mode 100644 index 00000000..837464f6 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/nat64_db.h @@ -0,0 +1,480 @@ +/* + *------------------------------------------------------------------ + * nat64_db.h - Stateful NAT64 translation database definitions + * + * Copyright (c) 2010-2013 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ +#ifndef __NAT64_DB_H__ +#define __NAT64_DB_H__ + +#include "cnat_cli.h" +#include "index_list.h" +#include "cnat_ports.h" +#include "cnat_db.h" +#include "nat64_defs.h" +#include "cnat_bulk_port_defs.h" + +nat64_vrfmap_t *nat64_map_by_vrf; + +#define SESSION_OPT + +#define HASH_ENHANCE 4 + + +#define NAT64_MAIN_DB_SIZE \ + (PLATFORM_NAT64_MAX_SESSIONS / PLATFORM_CNAT_INSTS) +#define NAT64_MAIN_HASH_SIZE \ + (HASH_ENHANCE * PLATFORM_CNAT_MAIN_PRELIM_HASH_SIZE) + +#define NAT64_MAIN_HASH_MASK (NAT64_MAIN_HASH_SIZE-1) + + +/* nb: 200000 users / 64 CNAT = 3125, 76% occupancy */ +#define NAT64_USER_HASH_SIZE CNAT_USER_HASH_SIZE +#define NAT64_USER_HASH_MASK (NAT64_USER_HASH_SIZE-1) + +/* Number of sessions per BIB entry/NAT64 translation + - nsessions is u16 type. So selected 0xFFFF + - Ideally Sessions per transltion will not reach the limit + - Only DoS can possible. It can take care of it */ +#define NAT64_MAX_SESSIONS_PER_BIB 0xFFFF + +/* No. of per ip/port config will be limited to 1000 */ +/* totally 25K across all instances) */ +#define NAT64_TIMEOUT_HASH_SIZE \ + PLATFORM_NAT64_TIMEOUT_HASH_SIZE + +#define NAT64_TIMEOUT_HASH_MASK (NAT64_TIMEOUT_HASH_SIZE - 1) +#define NAT64_TIMEOUT_FULL_MASK 0xFFFFFFFFFFFFFFFF + + +#define FORCE_DEL 1 /* Delete static BIB entries as well */ + +/* default timeout values */ +#define NAT64_UDP_DEFAULT 300 /* 5 min */ +#define NAT64_UDP_MIN 120 /* 2 min */ +#define NAT64_TCP_TRANS 240 /* 4 min */ +#define NAT64_TCP_EST 7200 /* 2 hrs */ +#define NAT64_TCP_V4_SYN 6 /* 6 sec */ +#define NAT64_FRAG_MIN 2 /* 2 sec */ +#define NAT64_ICMP_DEFAULT 60 /* 1 min */ + + +#define NAT64_V6_GET_HASH(in_key, hash, mask) \ + a = in_key->ipv6[0] ^ in_key->ipv6[1] ^ in_key->ipv6[2] ^ in_key->ipv6[3] \ + ^ ((in_key->port << 16) | in_key->vrf); \ + b = c = 0x9e3779b9;\ + /* Jenkins hash, arbitrarily use c as the "answer" */ \ + hash_mix32(a, b, c); \ + hash = c & mask; \ + + +#define NAT64_V4_GET_HASH(in_key, hash, mask) \ + a = in_key.ipv4 ^ ((in_key.port << 16) | in_key.vrf); \ + b = c = 0x9e3779b9; \ + /* Jenkins hash, arbitrarily use c as the "answer" */ \ + hash_mix32(a, b, c); \ + hash = c & mask; + + + +#define NAT64_V6_GET_SESSION_HASH(bib_index, in_addr, port, vrf, hash, mask) \ + a = bib_index ^ in_addr[0] ^ in_addr[1] ^ in_addr[2] ^ in_addr[3] \ + ^ port ^ vrf; \ + b = c = 0x9e3779b9; \ + /* Jenkins hash, arbitrarily use c as the "answer" */ \ + hash_mix32(a, b, c); \ + hash = c & mask; + +#define NAT64_V4_GET_SESSION_HASH(bib_index, in_addr, port, vrf, hash, mask) \ + a = bib_index ^ in_addr ^ port ^ vrf; \ + b = c = 0x9e3779b9; \ + /* Jenkins hash, arbitrarily use c as the "answer" */ \ + hash_mix32(a, b, c); \ + hash = c & mask; + + +extern index_slist_t *nat64_bib_out2in_hash; +extern index_slist_t *nat64_bib_in2out_hash; +extern index_slist_t *nat64_bib_user_hash; +extern index_slist_t *nat64_session_out2in_hash; +#ifndef SESSION_OPT +extern index_slist_t *nat64_session_in2out_hash; +#endif +extern index_slist_t *nat64_frag_out2in_hash; +extern index_slist_t *nat64_frag_in2out_hash; +extern index_slist_t *nat64_timeout_hash; + + +/* + * nat64_ bib_entry_t + * This structure depicts Binding Information Base of NAT64 sessions. + * It stores information about the inside v6 source transport address and + * corresponding outside v4 source transport address for each protocol. + */ + +typedef struct { + + index_slist_t nat64_bib_out2in_hash; + index_slist_t nat64_bib_in2out_hash; + + /* 0x08 */ + u16 flags; /* flags in cnat_db.h (cnat_main_db_entry_t) */ +#define NAT64_DB_FLAG_STATIC_PORT CNAT_DB_FLAG_STATIC_PORT +#define NAT64_DB_NAT64_FLAG CNAT_DB_NAT64_FLAG +#define NAT64_DB_FLAG_ALG_ENTRY CNAT_DB_FLAG_ALG_ENTRY +#define NAT64_DB_FLAG_PCPI CNAT_DB_FLAG_PCPI +#define NAT64_DB_FLAG_PCPE CNAT_DB_FLAG_PCPE + + /* 0x0A */ + u16 nat64_inst_id; + /* 0x0C */ + u32 user_index; + + /* 0x10 */ + nat64_v4_key_t v4_out_key; + + /* 0x18 */ + nat64_v6_key_t v6_in_key; + + /* 0x2C */ + index_dlist_t user_ports; + /* 0x34 */ + u32 session_head_index; + /* 0x38 - 56B*/ + u16 nsessions; + u16 pad2; + + /* 0x3C - 60B */ + u32 in2outpkts; + u32 out2inpkts; + /* 0x44 - 68B */ + + /* 0x42 - 70B */ + union { /* used by FTP ALG, pkt len delta due to FTP PORT cmd */ + u16 delta; + i8 alg_dlt[2]; /* two delta values, 0 for previous, 1 for current */ + u16 il; /* Used to indicate if interleaved mode is used + in case of RTSP ALG */ + } alg; + + u16 temp1; + + u32 entry_expires; + + u32 temp3; + /* unused, temp1 ,temp2 and temp3 put to make it in sync with nat44 main db entry size */ + /* size of = 0x54 = 84 B */ + u32 unused; + +} nat64_bib_entry_t ; + +/* + * nat64_bib_user_entry_t + * This structure stores information about translations of a particular user + * (User here refers to a same inside source address) + */ +typedef struct { + /* 0x00 */ + index_slist_t user_hash; + /* 0x04 */ + u16 ntranslations; + /* 0x06 */ + u8 icmp_msg_count; + /* 0x07 */ + u8 flags; +#define NAT64_USER_DB_NAT64_FLAG CNAT_USER_DB_NAT64_FLAG + + /* 0x08 */ + u32 translation_list_head_index; + /* 0x0C */ + u32 portmap_index; + /* 0x10 */ + nat64_v6_key_t v6_in_key; + /* 0x24 = 36 B */ + + u32 align1; /* Make it 8B boundary and in sync with nat44 user db entry size */ +#ifndef NO_BULK_LOGGING + /* size of = 0x28 = 40 B */ + /* Now adding 8 more bytes for bulk allocation.. This makes it + * 0x30 (48). For nat64 stful, we may support bulk allocation + * later */ + /* Indicates the currently used bulk port range */ + i16 bulk_port_range_cache[BULK_RANGE_CACHE_SIZE]; +#endif /* NO_BULK_LOGGING */ +} nat64_bib_user_entry_t; + +/* + * nat64_session_entry_t + * This structure represents the session table. It maintains the information + * about the flow of the packets. It would consist of source and destination + * (inside and outside) ipv4 and ipv4 transport addresses. + */ +typedef struct { + + /* 0x00 */ + index_slist_t nat64_session_out2in_hash; + + /* 0x04 */ + u32 bib_index; /* would point to v4/v6 src transport address */ + + /* 0x08 */ + nat64_v4_key_t v4_dest_key; + +#ifndef SESSION_OPT + index_slist_t nat64_session_in2out_hash; + nat64_v6_key_t v6_dest_key; +#endif + + /* 0x10 */ + u16 flags;/* Will be used for flags same as nat44 session */ + + /* 0x12 */ + u16 timeout; + + /* 0x14 */ + u32 entry_expires; + /* 0x18 */ + index_dlist_t bib_list; + /* 0x20 = 32 B */ + + union { /* alg same as cnat_main_db_t */ + u16 delta; + i8 alg_dlt[2]; + u16 il; + } alg; + + /* 0x22 */ + u16 tcp_flags; /* Mainly TCP events - check nat64_tcp_sm.h */ + + /* 0x24 */ + u32 tcp_seq_num; + + /* 0x28 */ /* unused1, unused2 and unused3 are put to make it in sync with + * cnat_session_db */ + u32 unused1; + + /* 0x2C */ + u32 unused2; + + /* 0x30 */ + u16 unused3; + + /* 0x32 - 50B */ + +} nat64_session_entry_t; + +/* + * nat64_session_tcp_init_entry_t + * This structure will be used to store information about v4 initiation + * tcp entries. + */ +typedef struct { + nat64_v6_key_t v6_in_key; + nat64_v4_key_t v4_out_key; +} nat64_session_tcp_init_entry_t; + +/* + * nat64_in_v6_frag_entry_t + * This structure will be used to store information about fragment flows + * that are coming from inside v6 hosts. + */ +typedef struct { + index_slist_t nat64_frag_in2out_hash; + + u32 v6_src_addr[4]; + u32 v6_destn_addr[4]; + u32 frag_iden; + u16 vrf; + u16 pad1; +} nat64_in_v6_frag_entry_t ; + +/* + * nat64_out_v4_frag_entry_t + * This structure will be used to store information about fragment flows + * that are coming from outside v4 machines. + */ +typedef struct { + index_slist_t nat64_frag_out2in_hash; + + u32 v4_src_addr; + u32 v4_destn_addr; + u16 frag_iden; + u16 vrf; +} nat64_out_v4_frag_entry_t ; + +/* + * nat64_timeout _t + * These following structures will be used to store information destination + * timeouts configured. + */ +typedef struct { + nat64_v4_key_t timeout_key; + u16 timeout_value; +} nat64_timeout_t; + +/* + * nat64_timeout_db_entry_t + */ +typedef struct { + nat64_timeout_t t_key; + index_slist_t t_hash; +} nat64_timeout_db_entry_t; + + +typedef union { + cnat_main_db_entry_t nat44_main_db; + nat64_bib_entry_t nat64_bib_db; +} cgse_nat_db_entry_t; + +typedef union { + cnat_session_entry_t nat44_session_db; + nat64_session_entry_t nat64_session_db; +} cgse_nat_session_db_entry_t; + +typedef union { + cnat_user_db_entry_t nat44_user_db; + nat64_bib_user_entry_t nat64_user_db; +} cgse_nat_user_db_entry_t; + +extern index_slist_t *nat64_bib_out2in_hash; +extern index_slist_t *nat64_bib_in2out_hash; +extern index_slist_t *nat64_bib_user_hash; +extern index_slist_t *nat64_session_out2in_hash; +extern index_slist_t *nat64_session_in2out_hash; +extern index_slist_t *nat64_frag_out2in_hash; +extern index_slist_t *nat64_frag_in2out_hash; +extern index_slist_t *nat64_timeout_hash; + +extern nat64_bib_entry_t *nat64_bib_db; +extern nat64_bib_user_entry_t *nat64_bib_user_db; +extern nat64_session_entry_t *nat64_session_db; +extern nat64_in_v6_frag_entry_t *nat64_in_frag_db; +extern nat64_out_v4_frag_entry_t *nat64_out_frag_db; +extern nat64_session_tcp_init_entry_t *nat64_tcp_init_db ; +extern nat64_timeout_db_entry_t *nat64_timeout_db; + +extern nat64_table_entry_t nat64_table_array[NAT64_MAX_NAT64_ENTRIES]; +extern nat64_table_entry_t *nat64_table_ptr; + +extern cgse_nat_db_entry_t *cgse_nat_db; +extern cgse_nat_user_db_entry_t *cgse_user_db; +extern cgse_nat_session_db_entry_t *cgse_session_db; + +void nat64_bib_user_db_delete (nat64_bib_user_entry_t *up); + +nat64_bib_user_entry_t* +nat64_bib_user_db_create_entry(nat64_v6_key_t *uki, u32 bucket, + u32 portmap_index); + +nat64_bib_user_entry_t* +nat64_bib_user_db_lookup_entry(nat64_v6_key_t *uki, u32 *bucket); + + +nat64_bib_entry_t* +nat64_bib_db_lookup_entry(nat64_v6_key_t *ki); + +void nat64_bib_db_in2out_hash_delete (nat64_bib_entry_t *ep); + +void nat64_bib_db_out2in_hash_delete (nat64_bib_entry_t *ep); + +nat64_bib_entry_t * +nat64_create_bib_db_entry_and_hash(nat64_v6_key_t *ki, + nat64_v4_key_t *ko, + nat64_bib_user_entry_t *udb); + + +void nat64_delete_bib_db_entry (nat64_bib_entry_t *ep, u8 force); + +nat64_bib_entry_t * +nat64_bib_db_lookup_entry_out2in (nat64_v4_key_t *ko); + +nat64_bib_entry_t * +nat64_get_bib_db_entry (nat64_v6_key_t *ki, + port_pair_t port_pair_type, + port_type_t port_type, + cnat_gen_icmp_info *info); + + +nat64_bib_entry_t* +nat64_create_static_bib_db_entry (nat64_v6_key_t *ki, + nat64_v4_key_t *ko, + nat64_table_entry_t *my_table, + cnat_gen_icmp_info *info); + + + +//void nat64_session_db_in2out_hash_delete (nat64_session_entry_t *ep); +void nat64_session_db_out2in_hash_delete (nat64_session_entry_t *ep); + +/*nat64_session_entry_t * +nat64_session_db_lookup_entry(nat64_v6_key_t *ki, u32 bib_index); */ + + +nat64_session_entry_t * +nat64_session_db_lookup_entry_out2in (nat64_v4_key_t *ko,u32 bib_index); + +/* +nat64_session_entry_t * +nat64_create_session_db_entry(nat64_v6_key_t *ki, + nat64_v4_key_t *ko, + nat64_bib_entry_t *bdb); +*/ +nat64_session_entry_t * +nat64_create_session_db_entry_v2( nat64_v4_key_t *ko, + nat64_bib_entry_t *bdb); + + +//void nat64_delete_session_db_entry (nat64_session_entry_t *ep); +void nat64_delete_session_db_entry_v2 (nat64_session_entry_t *ep, u8 force); + +u32 nat64_timeout_db_hash_lookup (nat64_v4_key_t t_key); + +u16 query_and_update_db_timeout_nat64(nat64_session_entry_t *db); + +void nat64_timeout_db_hash_add (nat64_timeout_db_entry_t *t_entry); + +u16 nat64_timeout_db_create (nat64_timeout_t t_entry); + +void nat64_timeout_db_delete(nat64_v4_key_t t_key); + +#define NAT64_CMP_V6_KEY(key1, key2) \ + memcmp(key1, key2, sizeof(nat64_v6_key_t)) + +#define NAT64_CMP_V4_KEY(key1, key2) \ + memcmp(key1, key2, sizeof(nat64_v4_key_t)) + + +#define NAT64_CMP_V6_IP(ip1, ip2) \ + memcmp(ip1, ip2, (sizeof(u32) * 4)) + + +#define NAT64_CMP_V6_KEY1(key1, key2) \ + (key1.ipv6[0] == key2.ipv6[0]) && (key1.ipv6[1] == key2.ipv6[1]) && \ + (key1.ipv6[2] == key2.ipv6[2]) && (key1.ipv6[3] == key2.ipv6[3]) && \ + (key1.port == key2.port) && (key1.vrf == key2.vrf) + + +#define NAT64_CMP_V6_IP1(ip1, ip2) \ + ((ip1[0] == ip2[0]) && (ip1[1] == ip2[1]) && \ + (ip1[2] == ip2[2]) && (ip1[3] == ip2[3])) + +#define NAT64_CMP_V4_KEY1(key1, key2) \ + (key1.key64 == key2.key64) + + +extern u8 nat64_timeout_dirty_flag[NAT64_MAX_NAT64_ENTRIES]; + +#endif diff --git a/plugins/vcgn-plugin/vcgn/nat64_defs.h b/plugins/vcgn-plugin/vcgn/nat64_defs.h new file mode 100644 index 00000000..47e431a7 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/nat64_defs.h @@ -0,0 +1,576 @@ +/* + *------------------------------------------------------------------ + * nat64_defs.h - NAT64 structure definiitions + * + * Copyright (c) 2007-2013 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ + +#ifndef __NAT64_DEFS_H__ +#define __NAT64_DEFS_H__ + +#ifdef TOBE_PORTED +#include "spp_platform_common.h" +#include "cgse_defs.h" +#include "xlat_defs.h" +#endif +#include "cnat_cli.h" +#include "cnat_ports.h" +#include "tcp_header_definitions.h" +#include "nat64_tcp_sm.h" +#include "cnat_db.h" + +#define NAT64_MAX_FRAG_ID_COUNTERS (256) + +#define NAT64_MAX_NAT64_ENTRIES 500 + +#define NAT64_MAX_ID (NAT64_MAX_NAT64_ENTRIES-1) + +#define NAT64_INVALID_ID (0) + +#define NAT64_MAX_CFG_INSTANCES 64 + +#define NAT64_TABLE_ENTRY_DELETED 0 +#define NAT64_TABLE_ENTRY_ACTIVE 1 +#define NAT64_TABLE_ENTRY_DORMANT 2 +#define NAT64_TABLE_ENTRY_INVALID_UIDB 3 + +#define NAT64_MAX_TRANSLATION_ENTRIES PLATFORM_MAX_TRANSLATION_ENTRIES + +#define NAT64_WKP_PREFIX_LEN 96 +#define NAT64_WKP_PREFIX_0 0x0064FF9B +#define NAT64_WKP_PREFIX_1 0x00000000 +#define NAT64_WKP_PREFIX_2 0x00000000 +#define NAT64_WKP_PREFIX_3 0x00000000 + + +/* Reset the expiry time only if it is not 0 +** if it is 0 - then queue for delete by clear command +**/ + +#define NAT64_TIMEOUT_RST(db) \ + if(PREDICT_TRUE(db->entry_expires !=0 )) \ + db->entry_expires = cnat_current_time; + +extern u32 nat64_config_debug_level; +extern u32 nat64_data_path_debug_level; + +extern u32 nat64_translation_create_count[NAT64_MAX_NAT64_ENTRIES]; +extern u32 nat64_translation_delete_count[NAT64_MAX_NAT64_ENTRIES]; +extern u32 nat64_translation_create_rate[NAT64_MAX_NAT64_ENTRIES]; +extern u32 nat64_translation_delete_rate[NAT64_MAX_NAT64_ENTRIES]; +extern u32 nat64_in2out_forwarding_count[NAT64_MAX_NAT64_ENTRIES]; +extern u32 nat64_in2out_forwarding_rate[NAT64_MAX_NAT64_ENTRIES]; +extern u32 nat64_out2in_forwarding_count[NAT64_MAX_NAT64_ENTRIES]; +extern u32 nat64_out2in_forwarding_rate[NAT64_MAX_NAT64_ENTRIES]; + +extern u32 nat64_translation_create_count_old[NAT64_MAX_NAT64_ENTRIES]; +extern u32 nat64_translation_delete_count_old[NAT64_MAX_NAT64_ENTRIES]; +extern u32 nat64_in2out_forwarding_count_old[NAT64_MAX_NAT64_ENTRIES]; +extern u32 nat64_out2in_forwarding_count_old[NAT64_MAX_NAT64_ENTRIES]; + +extern u16 *nat64_frag_id_counter_ptr; + +typedef struct { + u64 v6_to_v4_tcp_input_count; + u64 v6_to_v4_tcp_non_translatable_drop_count; + u64 v6_to_v4_tcp_state_drop_count; + u64 v6_to_v4_tcp_no_db_drop_count; + u64 v6_to_v4_tcp_output_count; +} nat64_v6_to_v4_tcp_counter_t; + +typedef struct { + u64 v4_to_v6_tcp_input_count; + u64 v4_to_v6_tcp_no_db_drop_count; + u64 v4_to_v6_tcp_v4_init_policy_drop_count; + u64 v4_to_v6_tcp_state_drop_count; + u64 v4_to_v6_tcp_output_count; + u64 v4_to_v6_tcp_filter_drop_count; +} nat64_v4_to_v6_tcp_counter_t; + +typedef struct { + u64 v6_to_v4_udp_input_count; + u64 v6_to_v4_udp_non_translatable_drop_count; + u64 v6_to_v4_udp_no_db_drop_count; + u64 v6_to_v4_udp_output_count; + u64 v6_to_v4_udp_checksum_zero_count; +} nat64_v6_to_v4_udp_counter_t; + +typedef struct { + u64 v4_to_v6_udp_input_count; + u64 v4_to_v6_udp_no_db_drop_count; + u64 v4_to_v6_udp_filter_drop_count; + u64 v4_to_v6_udp_output_count; + u64 v4_to_v6_udp_crc_zero_drop_count; + u64 v4_to_v6_udp_frag_crc_zero_drop_count; + u64 v4_to_v6_udp_crc_zero_recycle_sent_count; + u64 v4_to_v6_udp_crc_zero_recycle_drop_count; +} nat64_v4_to_v6_udp_counter_t; + +typedef struct { + u64 v6_to_v4_icmp_input_count; + u64 v6_to_v4_icmp_no_db_drop_count; + u64 v6_to_v4_icmp_non_translatable_drop_count; + u64 v6_to_v4_icmp_qry_output_count; +} nat64_v6_to_v4_icmp_counter_t; + +typedef struct { + u64 v4_to_v6_icmp_input_count; + u64 v4_to_v6_icmp_no_db_drop_count; + u64 v4_to_v6_icmp_filter_drop; + u64 v4_to_v6_icmp_qry_output_count; +} nat64_v4_to_v6_icmp_counter_t; + +typedef struct { + u64 v6_to_v4_icmp_error_input_count; + u64 v6_to_v4_icmp_error_no_db_drop_count; + u64 v6_to_v4_icmp_error_invalid_next_hdr_drop_count; + u64 v6_to_v4_icmp_error_non_translatable_drop_count; + u64 v6_to_v4_icmp_error_unsupported_type_drop_count; + u64 v6_to_v4_icmp_error_output_count; +} nat64_v6_to_v4_icmp_error_counter_t; + +typedef struct { + u64 v4_to_v6_icmp_error_input_count; + u64 v4_to_v6_icmp_error_no_db_drop_count; + u64 v4_to_v6_icmp_error_unsupported_type_drop_count; + u64 v4_to_v6_icmp_error_unsupported_protocol_drop_count; + u64 v4_to_v6_icmp_error_output_count; +} nat64_v4_to_v6_icmp_error_counter_t; + + + +typedef struct { + u64 nat64_v4_frag_input_count; + u64 nat64_v4_frag_forward_count; + u64 nat64_v4_frag_drop_count; + u64 nat64_v4_frag_throttled_count; + u64 nat64_v4_frag_timeout_drop_count; + u64 nat64_v4_frag_tcp_input_count; + u64 nat64_v4_frag_udp_input_count; + u64 nat64_v4_frag_icmp_input_count; + + u64 nat64_v6_frag_input_count; + u64 nat64_v6_frag_forward_count; + u64 nat64_v6_frag_drop_count; + u64 nat64_v6_frag_throttled_count; + u64 nat64_v6_frag_timeout_drop_count; + u64 nat64_v6_frag_tcp_input_count; + u64 nat64_v6_frag_udp_input_count; + u64 nat64_v6_frag_icmp_input_count; + u64 nat64_v6_frag_invalid_input_count; +} nat64_frag_counter_t; + +typedef struct { + u64 v6_to_v4_options_input_count; + u64 v6_to_v4_options_drop_count; + u64 v6_to_v4_options_forward_count; + u64 v6_to_v4_options_no_db_drop_count; + u64 v6_to_v4_unsupp_proto_count; + + u64 v4_to_v6_options_input_count; + u64 v4_to_v6_options_drop_count; + u64 v4_to_v6_options_forward_count; + u64 v4_to_v6_options_no_db_drop_count; + u64 v4_to_v6_unsupp_proto_count; +} nat64_options_counter_t; + +typedef struct { + u64 v4_icmp_gen_count; + u64 v6_icmp_gen_count; +} nat64_icmp_gen_counter_t; + +typedef struct{ + u32 nat64_num_translations; + u32 nat64_num_dynamic_translations; + u32 nat64_num_static_translations; + u32 nat64_sessions; + u64 nat64_port_limit_exceeded; + u64 nat64_system_limit_reached; + u64 nat64_resource_depletion_drops; + u64 nat64_no_translation_entry_drops; + u64 nat64_filtering_drops ; + u64 nat64_invalid_ipv6_prefix_drops; + u32 num_subscribers; + u32 dummy; + u64 drops_sessiondb_limit_exceeded; +} nat64_inst_gen_counter_t; + +typedef struct { + + nat64_v6_to_v4_tcp_counter_t v64_tcp_counters; + nat64_v4_to_v6_tcp_counter_t v46_tcp_counters; + nat64_v6_to_v4_udp_counter_t v64_udp_counters; + nat64_v4_to_v6_udp_counter_t v46_udp_counters; + nat64_v6_to_v4_icmp_counter_t v64_icmp_counters; + nat64_v4_to_v6_icmp_counter_t v46_icmp_counters; + nat64_v6_to_v4_icmp_error_counter_t v64_icmp_error_counters; + nat64_v4_to_v6_icmp_error_counter_t v46_icmp_error_counters; + nat64_frag_counter_t nat64_frag_counters; + nat64_options_counter_t nat64_options_counters; + nat64_icmp_gen_counter_t nat64_icmp_gen_counters; + +} nat64_counters_t; + +/* + * nat64_portmap_v2_t + * This structure stores information about the IP address and ports + * available for NAT for this nat64 instance. + */ + +typedef struct { + u32 delete_time; + u32 last_sent_timestamp; + u32 inuse; + u32 ipv4_address; /* native bit order */ + uword bm[(BITS_PER_INST + BITS(uword)-1)/BITS(uword)]; +} nat64_portmap_t; + +/* + * nat64_v4_db_key_t + * This structure gives information about the v4 transport address + * (ipv4, port, protocol) + */ +typedef struct { + u32 ipv4; + u16 port; + u16 vrf; //bit0-12:inst_id, bit13:unused, bit14-15:protocol +} nat64_v4_db_key_t; + +/* Union will be easier while compare/hash */ +typedef union { + nat64_v4_db_key_t k; + u64 key64; +} nat64_v4_key_t; +/* + * nat64_v6_db_key_t + * This structure gives information about the v6 transport address + * (ipv6, port, protocol) + */ +typedef struct { + u32 ipv6[4]; + u16 port; + u16 vrf; //bit0-12:inst_id, bit13:unused, bit14-15:protocol +} nat64_v6_key_t; + + +typedef struct { + u16 udp_timeout; + u16 tcp_trans_timeout; + u16 tcp_est_timeout; + u16 tcp_v4_init_timeout; + u16 frag_timeout; + u16 icmp_timeout; +} nat64_timeout_info_t; + +#define NAT64_UDP_DEF 300 /* 5min */ +#define NAT64_TCP_TRANS_DEF 240 /* 4min */ +#define NAT64_TCP_EST_DEF 7200 /* 2Hrs */ +#define NAT64_TCP_V4_DEF 6 /* 6 sec */ +#define NAT64_FRAG_DEF 2 /* 2 sec */ +#define NAT64_ICMP_DEF 60 /* 60 sec */ + +/* + * nat64_table_entry_t + * This structure is used to store information regarding every nat64 instance. + */ + +/* structure will hold the L4 information, of a particular frag stream set + * src_port - holds the original src port + * dst_port - holds the original dst port + * total_len - useful only in ICMP nodes + * cnat_port - vlaue used for looksups + * next_prot - Protocol after translation */ + +typedef struct l4_frag_info { + u16 next_node_idx; + u16 src_port; + u16 dst_port; + u16 total_length; + u8 protocol; + u16 cnat_prot; + u16 next_prot; +} l4_frag_info_t; + +typedef struct { + u16 state; + u16 nat64_id; /* nat64_id value for this table entry - for easy access */ + + u16 v4_uidb_index; /* V4 uidb index */ + u16 v6_uidb_index; /* V6 uidb index */ + + u8 octet0_position; + u8 octet1_position; + u8 octet2_position; + u8 octet3_position; + + u16 v4_to_v6_tcp_mss; /* TCP MSS */ + u16 v6_to_v4_tcp_mss; /* TCP MSS */ + + /* + * V6 NAT64 prefix value and mask size + */ + u32 v6_prefix[4]; + u32 v6_prefix_mask[4]; + + u8 v6_prefix_mask_len; + u8 ubits_reserved_on; +#define IPV4_TOS_OVERRIDE_FLAG 0x1 +#define IPV6_TOS_OVERRIDE_FLAG 0x2 +#define NAT64_STFUL_RTSP_ALG_ENABLE 0x4 + u8 feature_flags; + + u8 ipv4_tos_value; + u8 ipv6_tos_value; + u8 df_bit_clear; + u8 ipv6_mtu_set; + + u8 filtering_policy; +#define NAT64_ADDRESS_DEPENDENT_ENABLE 1 + u8 tcp_policy; +#define NAT64_TCP_SECURITY_FLAG_DISABLE 1 + u8 ftp_flags; + + u8 tcp_v4_init_enable; +#define NAT64_TCP_V4_INIT_ENABLE 1 + + u8 logging_policy; +#define NAT64_BIB_LOG_ENABLE 0 /* Default */ +#define NAT64_SESSION_LOG_ENABLE 1 + +#define NAT64_BIDIR_REFRESH 1 /* 1 - timer refresh in both direction */ +#define NAT64_UNIDIR_REFRESH 0 /* 0 - default (only v6 side refresh timer)*/ + + u8 nat64_refresh_both_direction; /* 0 - default (only v6 side refresh timer) */ +#define NAT64_BIDIR_REFRESH 1 /* 1 - timer refresh in both direction */ + + u8 udp_zero_checksum; /* 0 - default (calc checksum) */ +#define NAT64_UDP_ZERO_CHECKSUM_DROP 1 /* 1 -drop */ + + u16 port_limit; + + cnat_portmap_v2_t *port_map; + + u32 logging_index; + + nat64_timeout_info_t timeout_info; + /* + * These fields are not used much, let us keep it in the end + */ + u32 v4_vrf_id; /* V4 vrf id */ + u32 v6_vrf_id; /* V6 vrf id */ + + u32 v4_if_num; /* V4 SVI ifnum */ + u32 v6_if_num; /* V6 SVI ifnum */ + + u16 dyn_start_port; + + u16 pcp_server_port; + u32 pcp_server_addr[4]; + u32 rseed_ip; +#define NAT64_FRAG_ENABLE 1 +#define NAT64_FRAG_DISABLE 0 + u8 frag_state; + u8 nat64_enable; /* Enable/Disable this instance. */ + + u16 rtsp_port; + +} nat64_table_entry_t; + + + +extern nat64_table_entry_t nat64_table_array[NAT64_MAX_NAT64_ENTRIES]; +extern nat64_table_entry_t *nat64_table_ptr; +extern nat64_counters_t nat64_all_counters[NAT64_MAX_NAT64_ENTRIES]; +extern nat64_inst_gen_counter_t nat64_inst_gen_counters[NAT64_MAX_NAT64_ENTRIES]; + +typedef struct nat64_common_pipeline_data_ { +#ifdef TOBE_PORTED + spp_node_main_vector_t *nmv; +#endif + + u16 *nat64_id_ptr; + + nat64_table_entry_t *nat64_entry_ptr; + +} nat64_common_pipeline_data_t; + +typedef struct nat64_v6_to_v4_pipeline_data_ { + nat64_common_pipeline_data_t common_data; + + u32 bib_bucket; + u32 session_bucket; + + nat64_v6_key_t v6_in_key; + nat64_v6_key_t v6_dest_key; + + /* + * IPv6 Data, everthing in host order except for the addr fields + */ + u32 version_trafficclass_flowlabel; + + u16 payload_length; + u8 next_header; + u8 hop_limit; + + /* + * These Address fields are in Network Order, so that + * it is easy to extract the IPv4 address from them + */ + u32 ipv6_src[4]; + + u32 ipv6_dst[4]; + + u8 frag_next_header; + u8 frag_reserved; + u16 frag_offset_res_m; + u32 frag_identification; + + ipv4_header *ipv4_header; + union { + struct _v4_l4_info { + u8 *ipv4_l4_header; + u8 pad0; + u8 pad1; + u8 pad2; + u8 pad3; + } v4_l4_info; + struct _v4_icmp_info { + icmp_v4_t *ipv4_icmp_header; + u8 old_icmp_type; + u8 new_icmp_type; + u8 old_icmp_code; + u8 new_icmp_code; + u16 checksum; + u16 old_iden; // length (ICMP extn), ptr (param) + u16 new_iden; // ----- do ------------- + u16 old_seq; // MTU for PTB case + u16 new_seq; // ----- do ------------- + } v4_icmp_info; + struct _v4_udp_info { + udp_hdr_type_t *ipv4_udp_header; + u8 pad0; + u8 pad1; + u8 pad2; + u8 pad3; + } v4_udp_info; + struct _v4_tcp_info { + tcp_hdr_type *ipv4_tcp_header; + u16 old_src_port; + u16 new_src_port; + u16 dest_port; + nat64_tcp_events tcp_event; + } v4_tcp_info; + } l4_u; + + + l4_frag_info_t *frag_info; /* port for tcp/udp, ident - icmp */ + + + /* Counters will be added here */ + union { + nat64_v6_to_v4_tcp_counter_t *tcp_counter; + nat64_v6_to_v4_udp_counter_t *udp_counter; + nat64_v6_to_v4_icmp_counter_t *icmp_counter; + nat64_v6_to_v4_icmp_error_counter_t *icmp_error_counter; + nat64_frag_counter_t *frag_counter; + nat64_options_counter_t *options_counter; + } nat64_ctr_u; + nat64_icmp_gen_counter_t *icmp_gen_counter; +} nat64_v6_to_v4_pipeline_data_t; + + +typedef struct nat64_v4_to_v6_pipeline_data_ { + nat64_common_pipeline_data_t common_data; + + u32 bib_bucket; + u32 session_bucket; + + nat64_v4_key_t v4_src_key; /* Will be translated using Prefix */ + nat64_v4_key_t v4_dest_key; /* will be the out key for NAT64 */ + + /* + * IPv4 data + */ + u8 version_hdr_len_words; + u8 tos; + u16 total_len_bytes; + + u16 identification; + u16 frag_flags_offset; + + u8 ttl; + u8 protocol; + u16 l4_checksum; + + u32 ipv4_src_addr; + u32 ipv4_dst_addr; + + /* + * Pointers to IPv6 headers + */ + ipv6_header_t *ipv6_header; + ipv6_frag_header_t *ipv6_frag_header; + + union { + struct _v6_l4_info { + u8 *ipv6_l4_header; + u8 pad0; + u8 pad1; + u8 pad2; + u8 pad3; + } v6_l4_info; + struct _v6_icmp_info { + icmp_v6_t *ipv6_icmp_header; + u8 old_icmp_type; + u8 new_icmp_type; + u8 old_icmp_code; + u8 new_icmp_code; + u16 old_iden; // length (ICMP extn), ptr (param) + u16 new_iden; // ----- do ------------- + u16 old_seq; // MTU for PTB case + u16 new_seq; // ----- do ------------- + } v6_icmp_info; + struct _v6_udp_info { + udp_hdr_type_t *ipv6_udp_header; + u8 pad0; + u8 pad1; + u8 pad2; + u8 pad3; + } v6_udp_info; + struct _v6_tcp_info { + tcp_hdr_type *ipv6_tcp_header; + u16 old_dest_port; + u16 new_dest_port; + u16 src_port; + nat64_tcp_events tcp_event; + } v6_tcp_info; + } l4_u; + + l4_frag_info_t *frag_info; /* port for tcp/udp, ident - icmp */ + + /* Need to add counters here */ + union { + nat64_v4_to_v6_tcp_counter_t *tcp_counter; + nat64_v4_to_v6_udp_counter_t *udp_counter; + nat64_v4_to_v6_icmp_counter_t *icmp_counter; + nat64_v4_to_v6_icmp_error_counter_t *icmp_error_counter; + nat64_frag_counter_t *frag_counter; + nat64_options_counter_t *options_counter; + } nat64_ctr_u; + nat64_icmp_gen_counter_t *icmp_gen_counter; + +} nat64_v4_to_v6_pipeline_data_t; + +#endif diff --git a/plugins/vcgn-plugin/vcgn/nat64_tcp_sm.h b/plugins/vcgn-plugin/vcgn/nat64_tcp_sm.h new file mode 100644 index 00000000..3a505bc1 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/nat64_tcp_sm.h @@ -0,0 +1,91 @@ +/* + *------------------------------------------------------------------ + * nat64_tcp_sm.h - Stateful NAT64 translation TCP State machine + * + * Copyright (c) 2011 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ +#ifndef __NAT64_TCP_SM_H__ +#define __NAT64_TCP_SM_H__ + + +/* TCP States */ +typedef enum { + TCP_CLOSED, + TCP_V4_INIT, + TCP_V6_INIT, + TCP_ESTABLISHED, + TCP_V4_FIN_RCV, + TCP_V6_FIN_RCV, + TCP_V4V6_FIN_RCV, + TCP_TRANS, + TCP_NONE +} nat64_tcp_states; + +/* TCP Events */ +typedef enum { + TCP_TIMEOUT_EV, + TCP_V6_SYN_EV, + TCP_V4_SYN_EV, + TCP_V6_FIN_EV, + TCP_V4_FIN_EV, + TCP_V6_RST_EV, + TCP_V4_RST_EV, + TCP_DEFAULT_EV, + TCP_EV_COUNT +} nat64_tcp_events; + +/* TCP Actions */ +typedef enum { + TCP_FORWARD, + TCP_COND_FORWARD, /* Conditional forward, based on presence of + * session and bib entries */ + TCP_STORE, + TCP_PROBE, + TCP_CREATE_SESSION, + TCP_DELETE_SESSION, + TCP_DROP, + TCP_ACTION_NONE, + TCP_ACTION_COUNT +} nat64_tcp_actions; + +typedef struct { + nat64_tcp_states next_state; + nat64_tcp_actions action; +} nat64_tcp_trans_t; + +typedef struct { + nat64_tcp_trans_t event[TCP_EV_COUNT]; +} nat64_tcp_state_trans_t; + +extern nat64_tcp_state_trans_t nat64_tcp_sm_lookup[TCP_NONE]; + +/* +inline void +nat64_update_v6_to_v4_tcp (nat64_v6_to_v4_pipeline_data_t *pctx_ptr, + nat64_bib_entry_t *bib_ptr); + +inline u8 nat64_v6_to_v4_tcp_perform_action ( + spp_ctx_t *ctx, + nat64_v6_to_v4_pipeline_data_t *pctx_ptr, + nat64_bib_entry_t *bib_db, + nat64_session_entry_t *session_db); + +inline void +nat64_copy_tcp_into_pctx (nat64_v6_to_v4_pipeline_data_t *pctx_ptr); +*/ + + + +#endif diff --git a/plugins/vcgn-plugin/vcgn/platform_common.h b/plugins/vcgn-plugin/vcgn/platform_common.h new file mode 100644 index 00000000..2805b607 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/platform_common.h @@ -0,0 +1,136 @@ +/* + *--------------------------------------------------------------------------- + * platform_common.h -- file has all platform related macros defined as NULL + * included "platform_common_override.h will have actual + * platform specific defines + * + * Copyright (c) 2011-2013 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *--------------------------------------------------------------------------- + */ +#ifndef __PLATFORM_COMMON_H__ +#define __PLATFORM_COMMON_H__ + +/* $$$ FIXME causes printf format warnings */ +#define PLATFORM_DEBUG_PRINT(...) /* printf(__VA_ARGS__) */ +#define PLATFORM_FILL_DST_ADDR_PORT_TABLE +#define PLATFORM_SET_CTX_RU_TX_FROM_NODE(ctx, value) +#define PLATFORM_SET_CTX_RU_TX_DST_IPPORT_IDX(ctx, value) +#define PLATFORM_SET_CTX_RU_TX_PKT_TYPE(ctx, type) +#define PLATFORM_SET_RX_VRF(ctx, rx_vrf, hardcode, mask) +#define PLATFORM_SET_TX_VRF(ctx, tx_vrf) +/* PLATFORM_CNAT_SET_RX_VRF definition is not same as PLATFORM_SET_RX_VRF, + * So, maintaining two different definitions + */ +#define PLATFORM_CNAT_SET_RX_VRF(ctx, rx_vrf, proto) +#define PLATFORM_CNAT_SET_TX_VRF(ctx, tx_vrf) + +#define PLATFORM_PRINT_TESTING_PG() +#define PLATFORM_INIT_TEMP_SENSORS() +#define PLATFORM_READ_CPU_SENSORS(value) +#define PLATFORM_SET_TEMP_READ_BLOCK(var, val) +#define PLATFORM_NFV9_DISP_NODE_IDX + + +/* Assumption is, syslog packets + * are sent out via same channel as that of NFV9. + * Has to be overridden if this assumption is false. + */ +#define PLATFORM_SYSLOG_DISP_NODE_IDX PLATFORM_NFV9_DISP_NODE_IDX + +#define PLATFORM_CNAT_DB_DUMP_POLICY_PRINT() +#define PLATFORM_PRINT_CTX_VALUES(ctx) +#define PLATFORM_ADD_VRF_MAP_HANDLE_PARTITION(uidb_index, partition_id) +#define PLATFORM_DEL_VRF_MAP_HANDLE_PARTITION(uidb_index, partition_id) +#define PLATFORM_ALLOC_NFV9_PKT_BUFFER(ctx, to_lc_cpu) +#define PLATFORM_SET_DSLITE_ENABLE_FLAG(uidb_index, dslite_id) +#define PLATFORM_CHECK_DSLITE_ENABLE_FLAG + +#define PLATFORM_CNAT_INSTS 1 +#define PLATFORM_HANDLE_TTL_DECREMENT 0 // Don't handle TTL in NAT44 Application (default). + +// For ISM, we need to copy the ipv6->hop_limit to ipv4 ttl. +#define PLATFORM_6RD_COPY_TTL_IPV6_TO_IPV4 0 + +//For ISM case, need to allow as the TTL decrement happens at ingress LC +#define PLATFORM_6RD_ALLOW_TTL_1 0 + +#define PLATFORM_HANDLE_ICMP_TTL_EXPIRED 0 // Don't handle ICMP_ERROR msg for TTL <=1 in NAT44 App (default). + +#define PLATFORM_IPV4_FRAG_FRAG_HOLD_LIMIT 1 +#define PLATFORM_MAX_IPV4_CTX_ENTRIES 1 +#define PLATFORM_MAPE_FRAG 0 + +#define PLATFORM_ADDR_MASK_PER_CORE 0 +#define PLATFORM_ADDR_MASK_PER_CORE_PER_PARTITION 0 +#define PLATFORM_MAX_CORES 1 +#define PLATFORM_MAX_CORES_PER_PARTITION 1 +#define PLATFORM_MAX_NAT_ENTRIES 1 +#define PLATFORM_MAX_USER_ENTRIES 1 +#define PLATFORM_CNAT_MAX_ADDR_POOL_SIZE 0x1 +#define PLATFORM_DBL_SUPPORT 0 /* Default no DBL support, no NAT44 session table */ + +#define PLATFORM_MAX_DB_ENTRY_PER_SCAN 1 +#define PLATFORM_MAX_DB_ENTRY_SELECTED_PER_SCAN 1 +#define MAX_COMBINED_DB_ENTRIES_PER_SCAN 0 + +#define PLATFORM_CNAT_TIMEOUT_IPPROT_MASK 0 +#define PLATFORM_CNAT_TIMEOUT_PORTPROT_MASK 0 + +#define PLATFORM_MAX_SHOW_BUFFER_SIZE 1700 +#define PLATFORM_MAX_TRANSLATION_ENTRIES (50) +#define PLATFORM_MAX_UTIL_ENTRIES (100) +#define PLATFORM_MAX_NAT44_UTIL_ENTRIES ((64)/PLATFORM_MAX_CORES) + +#define PLATFORM_CNAT_NFV9_SHIM_HDR_OFFSET 0 +#define PLATFORM_CNAT_NFV9_L2_ENCAPS_OFFSET 0 + + +/* Below are nat64 statful related define */ +#define PLATFORM_NAT64_SET_RX_VRF(rx_vrf, proto, inst_id) \ + rx_vrf = proto | (inst_id & CNAT_VRF_MASK); + +#define PLATFORM_NAT64_MAX_TRANSLATION_ENTRIES (30) +#define PLATFORM_DS_LITE_MAX_TRANSLATION_ENTRIES (30) + +#define PLATFORM_SET_NAT64_ENABLE_FLAG(uidb_index, nat64_id) \ + { \ + nat64_set_enable_flag(nat64_id, ENABLE); \ + } + +#define PLATFORM_CHECK_NAT64_ENABLE_FLAG 1 +#define PLATFORM_SET_MAPE_ENABLE_FLAG(uidb_index, mape_id) +#define PLATFORM_CHECK_MAPE_ENABLE_FLAG 1 + +/* very small number , PD has correct value. + this is bcoz, if platform doesnt support nat64..shudnt take too much..*/ +#define PLATFORM_NAT64_MAX_SESSIONS 10 +#define PLATFORM_NAT64_TIMEOUT_HASH_SIZE 10 +#define PLATFORM_MAP_ADDR_PER_CORE 1024 + +#define ENABLE 1 +#define DISABLE 0 + +/* Platform Xlat inline learn function */ +#define PLATFORM_INLINE_LEARN_FUNC(a,b,c) + + +/* Checksum calculation to be done in software */ +#define PLATFORM_XLAT_SW_CHECKSUM_CALC 0 + + +/* Below include overrides all the above null defs and defines platform specific + define */ +#include "platform_common_override.h" + +#endif /* __PLATFORM_COMMON_H__ */ diff --git a/plugins/vcgn-plugin/vcgn/platform_common_override.h b/plugins/vcgn-plugin/vcgn/platform_common_override.h new file mode 100644 index 00000000..d6d3b078 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/platform_common_override.h @@ -0,0 +1,304 @@ +/* + *--------------------------------------------------------------------------- + * platform_common_override.h -- Files has actual platform specific defines. + * Will only included by platform_common.h + * + * Copyright (c) 2011-2013 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *--------------------------------------------------------------------------- + */ + +#ifndef __PLATFORM_COMMON_OVERRIDE_H__ +#define __PLATFORM_COMMON_OVERRIDE_H__ + +extern unsigned char my_octeon_id; + +#undef PLATFORM_DBL_SUPPORT +#define PLATFORM_DBL_SUPPORT 1 // Destination Based logging support + // NAT44 session table required. + +#undef PLATFORM_ADDR_MASK_PER_CORE +/* commenting this. Currently we are considering only single core */ +//#define PLATFORM_ADDR_MASK_PER_CORE 0x3f // Using 64 cores +#define PLATFORM_ADDR_MASK_PER_CORE 0x01 + +#undef MAX_COMBINED_DB_ENTRIES_PER_SCAN +#define MAX_COMBINED_DB_ENTRIES_PER_SCAN 128 + +#undef PLATFORM_MAX_CORES +#define PLATFORM_MAX_CORES (PLATFORM_ADDR_MASK_PER_CORE + 1) + +// Roddick does not have any partition of cores +#undef PLATFORM_ADDR_MASK_PER_CORE_PER_PARTITION +#define PLATFORM_ADDR_MASK_PER_CORE_PER_PARTITION \ + PLATFORM_ADDR_MASK_PER_CORE + +#undef PLATFORM_MAX_CORES_PER_PARTITION +#define PLATFORM_MAX_CORES_PER_PARTITION PLATFORM_MAX_CORES + +#undef PLATFORM_CNAT_INSTS +//#define PLATFORM_CNAT_INSTS 64 +#define PLATFORM_CNAT_INSTS 1 /* currently its only single instance */ + +#undef PLATFORM_MAX_NAT_ENTRIES +//#define PLATFORM_MAX_NAT_ENTRIES 20000000 // 20M +#define PLATFORM_MAX_NAT_ENTRIES 1666660 // ~80M/48 (79999680/48) + +#undef PLATFORM_MAX_USER_ENTRIES +#define PLATFORM_MAX_USER_ENTRIES 20800 // ~1M/48 (998400/48) + + +/* 524288: + (20000000 translations) / (64 CNAT INSTANCES) = 312500 + nearest higher number which is power of 2 next to 312500 +*/ +#undef PLATFORM_CNAT_MAIN_PRELIM_HASH_SIZE +//#define PLATFORM_CNAT_MAIN_PRELIM_HASH_SIZE 524288 +#define PLATFORM_CNAT_MAIN_PRELIM_HASH_SIZE (5<<20) +/* 4096: + (200000 users) / (64 CNAT INSTANCES) = 3125 + nearest higher number which is power of 2 next to 3125 +*/ +#undef PLATFORM_CNAT_USER_PRELIM_HASH_SIZE +#define PLATFORM_CNAT_USER_PRELIM_HASH_SIZE 4096 + +#undef PLATFORM_CNAT_MAX_ADDR_POOL_SIZE +#define PLATFORM_CNAT_MAX_ADDR_POOL_SIZE 0x10000 // max /16 + +#undef PLATFORM_MAX_DB_ENTRY_PER_SCAN +#define PLATFORM_MAX_DB_ENTRY_PER_SCAN 400 + +#undef PLATFORM_MAX_DB_ENTRY_SELECTED_PER_SCAN +#define PLATFORM_MAX_DB_ENTRY_SELECTED_PER_SCAN 100 // 1/4th of above + +#undef PLATFORM_CNAT_TIMEOUT_IPPROT_MASK +#define PLATFORM_CNAT_TIMEOUT_IPPROT_MASK 0xFFFFFFFF0000FFFF + +#undef PLATFORM_CNAT_TIMEOUT_PORTPROT_MASK +#define PLATFORM_CNAT_TIMEOUT_PORTPROT_MASK 0x00000000FFFFFFFF + +#ifdef TARGET_RODDICK /* EVB doesnt need it */ +#undef PLATFORM_FILL_DST_ADDR_PORT_TABLE +#define PLATFORM_FILL_DST_ADDR_PORT_TABLE fill_dst_addr_port_table(); +#endif + + +#ifndef RODDICK_ON_LINUX_OR_EVB +#undef PLATFORM_SET_CTX_RU_TX_FROM_NODE +#undef PLATFORM_SET_CTX_RU_TX_DST_IPPORT_IDX +#undef PLATFORM_SET_CTX_RU_TX_PKT_TYPE + +#define PLATFORM_SET_CTX_RU_TX_FROM_NODE(ctx, value) \ + (vnet_buffer(ctx))->vcgn_uii.ru.tx.from_node = value; +#define PLATFORM_SET_CTX_RU_TX_DST_IPPORT_IDX(ctx, value) \ + (vnet_buffer(ctx))->vcgn_uii.ru.tx.dst_ip_port_idx = value; +#define PLATFORM_SET_CTX_RU_TX_PKT_TYPE(ctx, type) \ + (vnet_buffer(ctx))->vcgn_uii.ru.tx.packet_type = type; +#endif + +#undef PLATFORM_SET_RX_VRF +#undef PLATFORM_SET_TX_VRF +#ifdef TARGET_RODDICK +#define PLATFORM_SET_RX_VRF(ctx, rx_vrf, hardcode, mask) \ + rx_vrf = (ctx->ru.rx.uidb_index & CNAT_VRF_MASK); +#define PLATFORM_SET_TX_VRF(ctx, tx_vrf) \ + ctx->ru.tx.uidb_index = tx_vrf; +#else /*EVB */ +#define PLATFORM_SET_RX_VRF(ctx, rx_vrf, hardcode, mask) \ + rx_vrf = hardcode; +#define PLATFORM_SET_TX_VRF(ctx, tx_vrf) +#endif + +#undef PLATFORM_CNAT_SET_RX_VRF +#undef PLATFORM_CNAT_SET_TX_VRF + +#define PLATFORM_CNAT_SET_RX_VRF(if_index, rx_vrf, proto) \ + rx_vrf = proto | ((if_index) & CNAT_VRF_MASK); + +#define PLATFORM_CNAT_SET_TX_VRF(if_index, tx_vrf) \ + (if_index) = ((tx_vrf) & CNAT_VRF_MASK); + + + +#undef PLATFORM_NAT64_SET_RX_VRF + +#ifdef TARGET_RODDICK + +#define PLATFORM_NAT64_SET_RX_VRF(rx_vrf, proto, inst_id) \ + rx_vrf = proto | (inst_id & CNAT_VRF_MASK); + +#else /* EVB */ + +#define PLATFORM_NAT64_SET_RX_VRF(rx_vrf, proto, inst_id) \ + rx_vrf = proto | inst_id; + +#endif + +#ifdef TARGET_EVB +#define VRF_MAP_CONFIG +#endif + +#undef PLATFORM_PRINT_TESTING_PG +#if defined(TARGET_LINUX_UDVR) || defined(CNAT_PG) +#define PLATFORM_PRINT_TESTING_PG() printf("testing pg\n"); +#else +#define PLATFORM_PRINT_TESTING_PG() +#endif + +#ifdef TARGET_RODDICK +#undef PLATFORM_INIT_TEMP_SENSORS +#undef PLATFORM_READ_CPU_SENSORS +#undef PLATFORM_SET_TEMP_READ_BLOCK + +#define PLATFORM_INIT_TEMP_SENSORS() Init_temperature_sensors(); +#define PLATFORM_READ_CPU_SENSORS(value) read_octeon_sensors(value); +#define PLATFORM_SET_TEMP_READ_BLOCK(var, val) var = &val->param[0]; +#endif + +#undef PLATFORM_HANDLE_ICMP_TTL_EXPIRED +#define PLATFORM_HANDLE_ICMP_TTL_EXPIRED 1 // handle TTL in NAT44 Application (for AVSM) + +#undef PLATFORM_NFV9_DISP_NODE_IDX +#ifdef TARGET_RODDICK +#define PLATFORM_NFV9_DISP_NODE_IDX "roddick_infra_l3_tx" +#else /* EVB */ +#define PLATFORM_NFV9_DISP_NODE_IDX "cnat_rewrite_output" +#endif + +#undef PLATFORM_CNAT_DB_DUMP_POLICY_PRINT +#define PLATFORM_CNAT_DB_DUMP_POLICY_PRINT() \ + printf("my instance:%d\n" \ + "icmp timeout %d udp init timeout %d act timeout %d\n" \ + "tcp init timeout %d act timeout %d mapping refresh %d\n" \ + "port limit per user %d ftp alg %d lb debug %d\n" \ + "icmp rate limit 0x%x config delete timer 0x%x\n" \ + "global debug flag 0x%x\n" \ + "icmp rate limit (pkts/per sec) %d\n" \ + "dynamic port range start %d\n" \ + "debug ivrf 0x%x flag 0x%x start_addr 0x%x end_addr 0x%x\n" \ + "debug ovrf 0x%x flag 0x%x start_addr 0x%x end_addr 0x%x\n", \ + my_instance_number, \ + icmp_session_timeout, udp_init_session_timeout, udp_act_session_timeout, \ + tcp_initial_setup_timeout, tcp_active_timeout, \ + mapping_refresh_both_direction, cnat_main_db_max_ports_per_user, \ + ftp_alg_enabled, lb_debug_enable, per_user_icmp_msg_limit, \ + config_delete_timeout, \ + global_debug_flag, \ + cnat_main_db_icmp_rate_limit, \ + cnat_static_port_range, \ + debug_i_vrf, debug_i_flag, debug_i_addr_start, debug_i_addr_end, \ + debug_o_vrf, debug_o_flag, debug_o_addr_start, debug_o_addr_end); + + +#undef PLATFORM_PRINT_CTX_VALUES +#ifdef TARGET_RODDICK +#define PLATFORM_PRINT_CTX_VALUES(ctx) \ + printf("\nAFTER: %s cur_hdr %p, uidb %d, pkt_type %d, cur_len %d\n", \ + type_str, \ + ctx->current_header, \ + ctx->ru.tx.uidb_index, \ + ctx->ru.tx.packet_type, \ + ctx->current_length); +#else /* EVB */ +#define PLATFORM_PRINT_CTX_VALUES(ctx) \ + printf("\nAFTER: %s cur_hdr %p, cur_len %d\n", \ + type_str,\ + ctx->current_header, \ + ctx->current_length); +#endif + +#undef PLATFORM_ADD_VRF_MAP_HANDLE_PARTITION +#define PLATFORM_ADD_VRF_MAP_HANDLE_PARTITION(uidb_index, partition_id) + +#undef PLATFORM_DEL_VRF_MAP_HANDLE_PARTITION +#define PLATFORM_DEL_VRF_MAP_HANDLE_PARTITION(uidb_index, partition_id) + +#undef PLATFORM_ALLOC_NFV9_PKT_BUFFER +#define PLATFORM_ALLOC_NFV9_PKT_BUFFER(ctx, to_lc_cpu) + +#undef PLATFORM_CNAT_NFV9_SHIM_HDR_OFFSET +#ifdef TARGET_RODDICK +// This corresponds to the length of the IMETRO SHIM Header for RODDICK +#define PLATFORM_CNAT_NFV9_SHIM_HDR_OFFSET 8 +#else +#define PLATFORM_CNAT_NFV9_SHIM_HDR_OFFSET 0 +#endif + +#undef PLATFORM_CNAT_NFV9_L2_ENCAPS_OFFSET +#ifdef TARGET_RODDICK +#define PLATFORM_CNAT_NFV9_L2_ENCAPS_OFFSET 0 +#else +#define PLATFORM_CNAT_NFV9_L2_ENCAPS_OFFSET 16 +#endif + +#undef PLATFORM_MAX_SHOW_BUFFER_SIZE +#undef PLATFORM_MAX_TRANSLATION_ENTRIES +#undef PLATFORM_MAX_UTIL_ENTRIES + +#define PLATFORM_MAX_SHOW_BUFFER_SIZE 1700 +#define PLATFORM_MAX_TRANSLATION_ENTRIES (50) +#define PLATFORM_NAT64_MAX_TRANSLATION_ENTRIES (30) +#define PLATFORM_MAX_UTIL_ENTRIES (100) + + +#undef PLATFORM_NAT64_MAX_SESSIONS +#undef PLATFORM_NAT64_TIMEOUT_HASH_SIZE +#define PLATFORM_NAT64_MAX_SESSIONS 20000000 +#define PLATFORM_NAT64_TIMEOUT_HASH_SIZE 24001 /* Ref: CSCtr36242 */ + +#undef PLATFORM_CHECK_DSLITE_ENABLE_FLAG +#define PLATFORM_CHECK_DSLITE_ENABLE_FLAG 1 + +/* Fragment hold limit is Platform specific */ +/* For Roddick, it is 63 due to hardware limitation */ +#undef PLATFORM_IPV4_FRAG_FRAG_HOLD_LIMIT +#define PLATFORM_IPV4_FRAG_FRAG_HOLD_LIMIT 63 + +#undef PLATFORM_MAX_IPV4_CTX_ENTRIES +#define PLATFORM_MAX_IPV4_CTX_ENTRIES 80 + +#undef PLATFORM_DIRN_IN_TO_OUT +#undef PLATFORM_DIRN_OUT_TO_IN +#undef PLATFORM_SET_SVI_PARAMS_FIELD + +#define PLATFORM_DIRN_IN_TO_OUT +#define PLATFORM_DIRN_OUT_TO_IN +#define PLATFORM_SET_SVI_PARAMS_FIELD(var, value) + +#undef PLATFORM_GET_NFV9_L3_HDR_OFFSET +#define PLATFORM_GET_NFV9_L3_HDR_OFFSET \ + ((u8 *)ctx + ctx->data + CNAT_NFV9_IP_HDR_OFFSET); + +#undef PLATFORM_GET_NFV9_L4_HDR_OFFSET +#define PLATFORM_GET_NFV9_L4_HDR_OFFSET \ + ((u8 *) ctx + ctx->data + CNAT_NFV9_UDP_HDR_OFFSET); + +#undef PLATFORM_MEMSET_CNAT_LOG_PKT_DATA +#define PLATFORM_MEMSET_CNAT_LOG_PKT_DATA + +/* + Index 0 -- SE_P2MP + Index 1 -- HA Destination 1 + Index 2 -- HA Destination 2 + Index 3 -- EXT_LOG_SRVR +*/ +enum { + NODE_CGNCFG, + NODE_HA, + NODE_PD_CONFIG, + NODE_LOGGING, + NODE_TRACE_BACKUP, + NODE_MAX, +}; + +#endif /* __PLATFORM_COMMON_OVERRIDE_H__ */ diff --git a/plugins/vcgn-plugin/vcgn/spp_ctx.h b/plugins/vcgn-plugin/vcgn/spp_ctx.h new file mode 100644 index 00000000..2d3c95c8 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/spp_ctx.h @@ -0,0 +1,76 @@ +/* + *------------------------------------------------------------------ + * spp_ctx.h - packet / context definitions + * + * Copyright (c) 2007-2014 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ + +#ifndef __SPP_CTX_H__ +#define __SPP_CTX_H__ + +/* Packet header / data */ + +/* Any change to spp_ctx_t structure should be updated in vnet/buffer.h + * as well. + */ +typedef struct _spp_ctx { +#ifdef TOBE_PORTED + /* Following fields are required to handle multibuffer */ + u32 num_buffers; /* Number of buffers part of packet */ + vlib_buffer_t *next_ctx_this_packet; + + /* Following is used by non-UDP protocols */ +#define SPP_CTX_FEATURE_DATA_SIZE 16 + + u8 feature_data[SPP_CTX_FEATURE_DATA_SIZE]; +#endif + + union { /* Roddick specific */ + u32 roddick_info; + struct __tx_pkt_info { /* Used by PI to PI communication for TX */ + u32 uidb_index:16; /* uidb_index to transmit */ + u32 packet_type:2; /* 1-IPv4, 2-Ipv6, - 0,3 - Unused */ + u32 ipv4_defrag:1; /* 0 - Normal, 1 - update first + * segment size + * (set by 6rd defrag node) + */ + + u32 dst_ip_port_idx:4;/* Index to dst_ip_port_table */ + u32 from_node:4; + u32 calc_chksum:1; + u32 reserved:4; + } tx; + struct __rx_pkt_info { /* Used by PD / PI communication */ + u32 uidb_index:16; /* uidb_index received in packet */ + u32 packet_type:2; /* 1-IPv4, 2-Ipv6, - 0,3 - Unused */ + u32 icmp_type:1; /* 0-ICMP query type, 1-ICMP error type */ + u32 protocol_type:2; /* 1-TCP, 2-UDP, 3-ICMP, 0 - Unused */ + u32 ipv4_defrag:1; /* 0 - Normal, 1 - update first + * segment size + * (set by 6rd defrag node) + */ + + u32 direction:1; /* 0-Outside, 1-Inside */ + u32 frag:1; /*IP fragment-1, Otherwise-0*/ + u32 option:1; /* 0-No IP option (v4) present, non-fragHdr + * option hdr present (v6) + */ + u32 df_bit:1; /* IPv4 DF bit copied here */ + u32 reserved1:6; + } rx; + } ru; +} spp_ctx_t; + +#endif diff --git a/plugins/vcgn-plugin/vcgn/spp_platform_trace_log.c b/plugins/vcgn-plugin/vcgn/spp_platform_trace_log.c new file mode 100644 index 00000000..a96894f9 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/spp_platform_trace_log.c @@ -0,0 +1,989 @@ +/* + *------------------------------------------------------------------ + * spp_platform_trace_log.c + * + * Copyright (c) 2008-2011, 2013 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *--------------------------------------------------------------------------- + */ + +#include <vlib/vlib.h> +#include <stdio.h> +#include <vppinfra/vec.h> +#include <vppinfra/bitmap.h> +#include <vppinfra/hash.h> +#include <vppinfra/pool.h> +#include <vppinfra/clib.h> +#include <vlib/main.h> + +#include "tcp_header_definitions.h" +#include "platform_common.h" +#include "spp_platform_trace_log.h" + +#define WORD_SIZE sizeof(u32) + +int temperature_read_blocked = 1; + +spp_cnat_logger_tbl_t spp_cnat_logger_table[] = +{ + { CNAT_ERROR_SUCCESS, + 3, + 0, + {"i-vrf", + "ipv4 addr", + "port"} + }, + { CNAT_NO_CONFIG_ERROR, + 3, + 180, + {"i-vrf", + "ipv4 addr", + "port"} + }, + { CNAT_NO_VRF_RUN_ERROR, + 3, + 180, + {"i-vrf", + "ipv4 addr", + "port"} + }, + { CNAT_NO_POOL_FOR_ANY_ERROR, + 3, + 180, + {"i-vrf", + "ipv4 addr", + "port"} + }, + { CNAT_NO_PORT_FOR_ANY_ERROR, + 3, + 60, + {"i-vrf", + "ipv4 addr", + "port"} + }, + { CNAT_BAD_INUSE_ANY_ERROR, + 3, + 60, + {"i-vrf", + "ipv4 addr", + "port"} + }, + { CNAT_NOT_FOUND_ANY_ERROR, + 3, + 60, + {"i-vrf", + "ipv4 addr", + "port"} + }, + { CNAT_INV_PORT_FOR_DIRECT_ERROR, + 3, + 60, + {"i-vrf", + "ipv4 addr", + "port"} + }, + { CNAT_BAD_INUSE_DIRECT_ERROR, + 3, + 1, + {"i-vrf", + "ipv4 addr", + "port"} + }, + { CNAT_NOT_FOUND_DIRECT_ERROR, + 3, + 1, + {"i-vrf", + "ipv4 addr", + "port"} + }, + { CNAT_OUT_OF_PORT_LIMIT_ERROR, + 3, + 60, + {"i-vrf", + "ipv4 addr", + "port"} + }, + { CNAT_MAIN_DB_CREATE_ERROR, + 0, + 30, + {""} + }, + { CNAT_LOOKUP_ERROR, + 1, + 30, + {"Type"} + }, + { CNAT_INDEX_MISMATCH_ERROR, + 2, + 30, + {"in2out_index", + "out2in_index"} + }, + { CNAT_PACKET_DROP_ERROR, + 3, + 15, + {"i-vrf", + "ipv4 addr", + "port"} + }, + { CNAT_INV_UNUSED_USR_INDEX, + 1, + 10, + {"invalid/unused user index"} + }, + { CNAT_INVALID_VRFMAP_INDEX, + 0, + 60, + {""} + }, + { CNAT_USER_OUT_OF_PORTS, + 2, + 1800, + {"i-vrf", + "ipv4 addr"} + }, + { CNAT_EXT_PORT_THRESH_EXCEEDED, + 2, + 180, + {"i-vrf", + "ipv4 address"} + }, + { CNAT_EXT_PORT_THRESH_NORMAL, + 2, + 180, + {"vrf", + "ipv4 address"} + }, + { CNAT_NO_EXT_PORT_AVAILABLE, + 0, + 1, + {"",} + }, + { CNAT_SESSION_THRESH_EXCEEDED, + 2, + 1800, + {"vrf", + "ipv4 address"} + }, + { CNAT_SESSION_THRESH_NORMAL, + 2, + 30, /* changed to 30 */ + {"vrf", + "ipv4 address"} + }, + { WQE_ALLOCATION_ERROR, + 0, + 180, /* changed to 180 */ + {""} + }, + { ERROR_PKT_DROPPED, + 2, + 60, /* changed to 60 */ + {"spi-port", + "error-code"} + }, + { SYSMGR_PD_KEY_CREATION_ERROR, + 0, + 30, + {""} + }, + { SYSMGR_PD_SHMEM_ID_ERROR, + 0, + 1, + {""} + }, + { SYSMGR_PD_SHMEM_ATTACH_ERROR, + 0, + 1, + {""} + }, + { OCTEON_CKHUM_SKIPPED, + 2, + 60, /* changed to 60 */ + {"version", + "protocol"} + }, + { PK0_SEND_STATUS, + 1, + 15, + {"status"} + }, + { CMD_BUF_ALLOC_ERR, + 0, + 60, + {""} + }, + { SPP_CTX_ALLOC_FAILED, + 1, + 300, /* every 5 min */ + {"node"} + }, + { SPP_MAX_DISPATCH_REACHED, + 1, + 60, + {"node"} + }, + { HA_SIGCHILD_RECV, + 3, + 1, + {"pid", + "uid", + "signal",} + }, + { SIGACTION_ERR, + 0, + 1, + {""} + }, + { HA_INVALID_SEQ_OR_CONFIG_OR_TYPE, + 2, + 10, + {"seq-id or config option", + "Type"} + }, + { NODE_CREATION_ERROR, + 1, + 1, + {"node"} + }, + + { CNAT_CLI_INVALID_INPUT, + 4, + 0, + {"Error Type", + "Passed", + "Expected", + "Type"} + }, + { CNAT_DUMMY_HANDLER_HIT, + 1, + 0, + {"Handler"} + }, + { CNAT_CONFIG_ERROR, + 5, + 0, + {"Sub code", + "Param 1", + "Param 2", + "Param 3", + "Param 4"} + }, + { CNAT_NFV9_ERROR, + 1, + 180, /* changed to 180 */ + {"Sub code"} + }, + { CNAT_CMVX_TWSI_READ_WRITE_FAIL, + 3, + 180, + {"Operation", + "Location", + "Data"} + }, + { CNAT_TEMP_SENSOR_TIMEOUT, + 0, + 180, + {""} + }, + { CNAT_TEMP_SENSOR_DATA_MISMATCH, + 2, + 180, + {"Actual", + "Expected"} + }, + { CNAT_TEMP_SENSOR_CONFIG_FAILED, + 1, + 180, + {"Glik"} + }, + { HA_APP_NOT_RESPONDING, + 2, + 180, + {"CPU", + "Core"} + }, + { HA_DATA_PATH_TEST_FAILED, + 0, + 30, + {""} + }, + { CNAT_WRONG_PORT_ALLOC_TYPE, + 3, + 60, + {"i-vrf", + "ipv4 addr", + "port"} + }, + { CNAT_NEW_PORT_ALLOC_ERROR, + 3, + 60, + {"i-vrf", + "ipv4 addr", + "port"} + }, + { CNAT_INVALID_INDEX_TO_FREE_PORT, + 0, + 60, + {""} + }, + { CNAT_DELETE_DB_ENTRY_NO_PORTMAP, + 0, + 60, + {""} + }, + { CNAT_MAIN_DB_LIMIT_ERROR, + 0, + 180, + {""} + }, + { CNAT_USER_DB_LIMIT_ERROR, + 0, + 180, + {""} + }, + { CNAT_FRAG_DB_ERROR, + 1, + 180, + {"Type"} + }, + + { DROP_PKT_DUMP, + 0, + 20, + {""} + } +}; + +#define LOG_TABLE_MAX_ENTRIES \ + (sizeof(spp_cnat_logger_table)/sizeof(spp_cnat_logger_table[0])) + +u32 error_code_timestamps[LOG_TABLE_MAX_ENTRIES]; +spp_timer_t sensor_timer; +spp_trace_log_global_info_t spp_trace_log_global_info; +spp_global_counters_t spp_global_counters; + +/* + * Logging information structures + */ +spp_trace_log_info_t spp_default_trace_log_info; +spp_trace_log_info_t *spp_trace_log_info_pool; + +#ifdef TOBE_PORTED +/* + * The following 2 functions are temporary hacks until + * we have RTC support from the PD nodes + */ +inline +u32 spp_trace_log_get_sys_up_time_in_ms (void) +{ + spp_node_main_vector_t *nmv; + u32 sys_up_time; + + nmv = spp_get_node_main_vectorized_inline(); + + sys_up_time = (u32) (nmv->ticks / nmv->ticks_per_ms); + + return (sys_up_time); +} + +u32 spp_trace_log_get_unix_time_in_seconds (void) +{ + spp_node_main_vector_t *nmv; + u32 unix_time; + + nmv = spp_get_node_main_vectorized_inline(); + + unix_time = (u32) (nmv->ticks / nmv->ticks_per_second); + + return (unix_time); +} + +/* + * edt: * * spp_trace_log_send_queued_pkt + * + * Tries to send a logging pkt that has been queued earlier + * because it could not be sent due to downstream constipation + * + * Argument: spp_trace_log_info_t *trace_logging_info + * structure that contains the packet context + */ +inline +void spp_trace_log_send_queued_pkt (spp_trace_log_info_t *trace_logging_info) +{ + spp_node_t *output_node; + + output_node = spp_get_nodes() + + spp_trace_log_global_info.spp_trace_log_disp_node_index; + + if (PREDICT_TRUE(output_node->sf.nused < SPP_MAXDISPATCH)) { + /* + * Move the logging context to output node + */ + spp_dispatch_make_node_runnable(output_node); + output_node->sf.ctxs[output_node->sf.nused++] = + trace_logging_info->queued_logging_context; + + /* + * Context has been queued, it will be freed after the pkt + * is sent. Clear this from the logging_context_info structure + */ + trace_logging_info->queued_logging_context = NULL; + + } else { + /* + * Can't do much, just return, may be we can send it later + */ + spp_global_counters.spp_trace_log_downstream_constipation_count++; + } +} + +/* + * edt: * * spp_trace_log_send_pkt + * + * Tries to send a logging pkt. If the packet cannot be sent + * because of rewrite_output node cannot process it, queue + * it temporarily and try to send it later. + * + * Argument: spp_trace_log_info_t *trace_logging_info + * structure that contains the packet context + */ +inline +void spp_trace_log_send_pkt (spp_trace_log_info_t *trace_logging_info) +{ + spp_node_t *output_node; + + + output_node = spp_get_nodes() + + spp_trace_log_global_info.spp_trace_log_disp_node_index; + + if (PREDICT_TRUE(output_node->sf.nused < SPP_MAXDISPATCH)) { + /* + * Move the logging context to output node + */ + spp_dispatch_make_node_runnable(output_node); + output_node->sf.ctxs[output_node->sf.nused++] = + trace_logging_info->current_logging_context; + + } else { + /* + * Queue the context into the logging_info structure, + * We will try to send it later. Currently, we will + * restrict to only one context queued. + */ + spp_global_counters.spp_trace_log_downstream_constipation_count++; + + /* + * Attach the current logging context which is full to the + * queued context list in trace_logging_info structure + */ + trace_logging_info->queued_logging_context = + trace_logging_info->current_logging_context; + + /* + * Whether the context is queued or not, set the current context index + * to EMPTY, as the earlier context can no more be used to send + * more logging records. + */ + } + + trace_logging_info->current_logging_context = NULL; +} + +/* + * edt: * * spp_trace_log_send_pkt_always_success + * + * Tries to send a logging pkt. This cannot fail due to downstream + * constipation because we have already checked if the rewrite_output + * node can accept it. + * + * Argument: spp_trace_log_info_t *trace_logging_info + * structure that contains the packet context + * + * Argument: spp_node_t *output_node + * spp_node_t structure for rewrite_output node + */ +inline +void spp_trace_log_send_pkt_always_success ( + spp_trace_log_info_t *trace_logging_info, + spp_node_t *output_node) +{ + /* + * At this point we either have a current or queued logging context + */ + if (PREDICT_TRUE(trace_logging_info->current_logging_context != NULL)) { + + output_node->sf.ctxs[output_node->sf.nused++] = + trace_logging_info->current_logging_context; + + trace_logging_info->current_logging_context = NULL; + } else { + /* + * For queued logging context + */ + output_node->sf.ctxs[output_node->sf.nused++] = + trace_logging_info->queued_logging_context; + + trace_logging_info->queued_logging_context = NULL; + } + + /* + * Move the logging context to output node + */ + spp_dispatch_make_node_runnable(output_node); + +} + +/* + * edt: * * spp_create_trace_log_context + * + * Tries to create a logging context with packet buffer + * to send a new logging packet + * + * Argument: spp_trace_log_info_t *trace_logging_info + * structure that contains the nfv9 logging info and will store + * the packet context as well. + */ +inline +void spp_create_trace_log_context ( + spp_trace_log_info_t *trace_logging_info) +{ + spp_ctx_t *ctx; + + /* + * If queued_logging_context_index is non-EMPTY, we already have a logging + * packet queued to be sent. First try sending this before allocating + * a new context. We can have only one active packet context per + * trace_logging_info structure + */ + if (PREDICT_FALSE(trace_logging_info->queued_logging_context != NULL)) { + spp_trace_log_send_queued_pkt(trace_logging_info); + /* + * If we cannot still send the queued pkt, just return + * Downstream Constipation count would have increased anyway + */ + if (trace_logging_info->queued_logging_context != NULL) { + spp_global_counters.spp_trace_log_context_creation_deferred_count++; + return; + } + } + + + /* + * No context can be allocated, return silently + * calling routine will handle updating the error counters + */ + if (spp_ctx_alloc(&ctx, 1) < 1) { + spp_global_counters.spp_trace_log_context_creation_fail_count++; + return; + } + + trace_logging_info->current_logging_context = ctx; + trace_logging_info->pkt_length = 0; + + trace_logging_info->current_logging_context_timestamp = + spp_trace_log_get_sys_up_time_in_ms(); + + ctx->flags = SPP_CTX_END_OF_PACKET; + ctx->ru.tx.from_node = NODE_TRACE_BACKUP; + ctx->ru.tx.dst_ip_port_idx = EXT_TRACE_BACKUP_INDEX; + ctx->next_ctx_this_packet = (spp_ctx_t*) SPP_CTX_NO_NEXT_CTX; + ctx->current_header = &ctx->packet_data[SPP_TRACE_LOG_HDR_OFFSET]; + ctx->current_length = 0; + + trace_logging_info->log_record = 0; + trace_logging_info->total_record_count = 0; + trace_logging_info->next_data_ptr = + (u8 *) &ctx->packet_data[SPP_TRACE_LOG_HDR_OFFSET]; + +} + +/* + * edt: * * spp_trace_log_add_record_create + * + * Tries to create an add record to the NFV9 packet + * + * Argument: spp_trace_log_info_t *trace_logging_info + * structure that contains the nfv9 logging info and will store + * the packet context as well. + */ +inline +void spp_trace_log_add_record_create (spp_trace_log_info_t *trace_logging_info) +{ + + trace_logging_info->log_header = + (spp_trace_log_hdr_t *) (trace_logging_info->next_data_ptr); + + /* + * Initialize the number of traces recorded + */ + trace_logging_info->log_header->num_traces = + spp_host_to_net_byte_order_32(0); + + + trace_logging_info->log_record = + (spp_trace_log_t *) (trace_logging_info->log_header + 1); + + /* + * Update the length of the total pkt + */ + trace_logging_info->pkt_length += + SPP_LOG_TRACE_HEADER_LENGTH; + + /* + * Set the data pointer beyond the trace header field + */ + trace_logging_info->next_data_ptr = + (u8 *) (trace_logging_info->log_header + 1); + +} + +/* + * edt: * * spp_trace_logger + * + * Tries to log spp/cnat event/errors + * + * Argument: u8 *error_code + * Error code passed + * + * Argument: optional arguments + */ +void spp_trace_logger (u16 error_code, u16 num_args, u32 *arg) +{ + spp_trace_log_info_t *trace_logging_info = 0; + u8 i; + + trace_logging_info = + spp_trace_log_info_pool + + spp_trace_log_global_info.spp_log_pool_index[SPP_LOG_LTRACE]; + + if (PREDICT_FALSE(trace_logging_info->current_logging_context == NULL)) { + spp_create_trace_log_context(trace_logging_info); + + /* + * If still empty, return after increasing the count + */ + if (PREDICT_FALSE(trace_logging_info->current_logging_context == NULL)) { + return; + } + } + + if (PREDICT_FALSE(trace_logging_info->log_record == NULL)) { + spp_trace_log_add_record_create(trace_logging_info); + } + + /* + * We should definitely have add_record now, no need to sanitize + */ + trace_logging_info->log_record->error_code = + spp_host_to_net_byte_order_16(error_code); + trace_logging_info->log_record->num_args = + spp_host_to_net_byte_order_16(num_args); + + for (i = 0; i < num_args; i++) { + trace_logging_info->log_record->arg[i] = + spp_host_to_net_byte_order_32(*(arg + i)); + } + + trace_logging_info->pkt_length += SPP_TRACE_LOG_RECORD_LENGTH + WORD_SIZE*num_args; + trace_logging_info->current_logging_context->current_length = + trace_logging_info->pkt_length; + trace_logging_info->total_record_count += 1; + + trace_logging_info->next_data_ptr = + (u8 *) (trace_logging_info->next_data_ptr + WORD_SIZE + WORD_SIZE*num_args); + + trace_logging_info->log_record = + (spp_trace_log_t *) (trace_logging_info->next_data_ptr); + + /* + * Initialize the number of traces recorded + */ + trace_logging_info->log_header->num_traces = + spp_host_to_net_byte_order_32(trace_logging_info->total_record_count); + + + + /* + * If we have exceeded the packet length, let us send the + * packet now. There is buffer of additional bytes beyond + * max_pkt_length to ensure that the last add/delete record + * can be stored safely. + */ + if (trace_logging_info->pkt_length > + trace_logging_info->max_length_minus_max_record_size) { + spp_trace_log_send_pkt(trace_logging_info); + } +} + + +/* + * edt: * * spp_trace_log_timer_handler + * + * Timer handler for sending any pending NFV9 record + * + * Argument: spp_timer_t * timer_p + * Timer handler structure + */ +inline +void spp_trace_log_timer_handler (spp_timer_t * timer_p) +{ + spp_node_t *output_node; + spp_trace_log_info_t *trace_logging_info = 0; + u32 current_timestamp = spp_trace_log_get_sys_up_time_in_ms(); + i16 sf_nused; + + output_node = spp_get_nodes() + + spp_trace_log_global_info.spp_trace_log_disp_node_index; + + sf_nused = output_node->sf.nused; + + pool_foreach (trace_logging_info, spp_trace_log_info_pool, ({ + /* + * Check if no more logging contexts can be queued + */ + if (PREDICT_FALSE(sf_nused >= SPP_MAXDISPATCH)) { + break; + } + + /* + * If there is a current logging context and timestamp + * indicates it is pending for long, send it out + * Also if there is a queued context send it out as well + */ + if (trace_logging_info->queued_logging_context || + (trace_logging_info->current_logging_context && + (current_timestamp - + trace_logging_info->current_logging_context_timestamp) + > 1000)) { + spp_trace_log_send_pkt_always_success(trace_logging_info, + output_node); + sf_nused++; + } + })); + + timer_p->expires = + spp_timer_in_n_ms_inline(1000); /* every 1 sec */ + spp_timer_start(timer_p); + +} +inline +void spp_sensor_timer_handler (spp_timer_t * timer_p) +{ +#ifdef TARGET_RODDICK + if (!temperature_read_blocked) { + Init_temperature_sensors(); + read_octeon_sensors(TEMPERATURE_SENSOR_QUIET_MODE); + } + + timer_p->expires = + spp_timer_in_n_ms_inline(60000); /* every 1 sec */ + spp_timer_start(timer_p); + +#endif +} +void init_trace_log_buf_pool (void) +{ + spp_trace_log_info_t *my_spp_log_info; + u8 found; + spp_log_type_t log_type; + + /* + * Init SPP logging info as needed, this will be done only once + */ + spp_trace_log_init(); + + found = 0; + + for (log_type = SPP_LOG_LTRACE; log_type < SPP_LOG_MAX; log_type++ ) { + /* Do we already have a map for this log type? */ + pool_foreach (my_spp_log_info, spp_trace_log_info_pool, ({ + if (my_spp_log_info->log_type == log_type) { + found = 1; + break; + } + })); + + /* + * Entry not present + */ + if (!found) { + pool_get(spp_trace_log_info_pool, my_spp_log_info); + memset(my_spp_log_info, 0, sizeof(*my_spp_log_info)); + + /* + * Make the current and head logging context indeices as EMPTY. + * When first logging happens, these get set correctly + */ + my_spp_log_info->current_logging_context = NULL; + my_spp_log_info->queued_logging_context = NULL; + + my_spp_log_info->log_type = log_type; + my_spp_log_info->max_length_minus_max_record_size = + SPP_TRACE_LOG_MAX_PKT_LENGTH; + + spp_trace_log_global_info.spp_log_pool_index[log_type] = + my_spp_log_info - spp_trace_log_info_pool; + } + + } + + return; +} + + +/* + * one time function + * has to be called at the init time + */ +void spp_trace_log_init (void) +{ + if (!spp_trace_log_global_info.spp_trace_log_init_done) { + +#ifdef TARGET_RODDICK + spp_trace_log_global_info.spp_trace_log_disp_node_index = + spp_lookup_node_index("roddick_infra_l3_tx"); +#elif defined(TARGET_BOOSTER) + spp_trace_log_global_info.spp_trace_log_disp_node_index = + spp_lookup_node_index("booster_infra_l3_tx"); +#endif + ASSERT(spp_trace_log_global_info.spp_trace_log_disp_node_index != (u16)~0); + + spp_trace_log_global_info.log_timer.cb_index = + spp_timer_register_callback(spp_trace_log_timer_handler); + spp_trace_log_global_info.log_timer.expires = + spp_timer_in_n_ms_inline(1000); /* every 1 sec */ + spp_timer_start(&spp_trace_log_global_info.log_timer); + + if (!my_core_id) { + sensor_timer.cb_index = + spp_timer_register_callback(spp_sensor_timer_handler); + sensor_timer.expires = + spp_timer_in_n_ms_inline(60000); /* every 1 sec */ + spp_timer_start(&sensor_timer); + } + + spp_trace_log_global_info.spp_trace_log_init_done = 1; + + /* + * Set MSC ip_addr, port values + */ +#ifdef TARGET_RODDICK + dst_ipv4_port_table[EXT_TRACE_BACKUP_INDEX].ipv4_address = + vpp_boot_params.msc_ip_address; + switch(vpp_boot_params.octeon_number) { + case 0: + dst_ipv4_port_table[EXT_TRACE_BACKUP_INDEX].port = 0x15BF; + break; + case 1: + dst_ipv4_port_table[EXT_TRACE_BACKUP_INDEX].port = 0x15BF; + break; + case 2: + dst_ipv4_port_table[EXT_TRACE_BACKUP_INDEX].port = 0x15BF; + break; + case 3: + dst_ipv4_port_table[EXT_TRACE_BACKUP_INDEX].port = 0x15BF; + break; + } +#else + dst_ipv4_port_table[EXT_TRACE_BACKUP_INDEX].ipv4_address = 0x01020304; + dst_ipv4_port_table[EXT_TRACE_BACKUP_INDEX].port = 0x15BF; +#endif + + } +} + +void spp_printf (u16 error_code, u16 num_args, u32 *arg) +{ + u32 current_timestamp; + spp_node_main_vector_t *nmv; + + if (PREDICT_FALSE(error_code >= LOG_TABLE_MAX_ENTRIES)) + { + /* printf("Error code invalid %d, %d, %d, %d\n", + error_code, LOG_TABLE_MAX_ENTRIES, + sizeof(spp_cnat_logger_table), sizeof(spp_cnat_logger_table[0])); + */ + return; /* Should not happen */ + } + + nmv = spp_get_node_main_vectorized_inline(); + current_timestamp = nmv->ticks / nmv->ticks_per_second; + + /* Check if any further hashing is required */ + + if (PREDICT_FALSE(error_code == DUMP_PKT_IDX)) { +#ifdef TARGET_RODDICK || defined(TARGET_BOOSTER) + spp_trace_logger(error_code, num_args, arg); +#else + u8 j ; + + printf("PKT DUMP :: "); + for (j = 0 ; j < num_args; j++) { + printf("0x%x ", arg[j]); + if (j == (num_args - 1)) { + printf("\n"); + } + } +#endif + } else if (PREDICT_TRUE((current_timestamp - error_code_timestamps[error_code]) >= + spp_cnat_logger_table[error_code].rate_limit_time)) { + /* update timestamp */ + error_code_timestamps[error_code] = current_timestamp; + +#ifdef TARGET_RODDICK || defined(TARGET_BOOSTER) + spp_trace_logger(error_code, num_args, arg); +#else + u8 j ; + + for (j = 0 ; j < num_args; j++) { + printf("%s: %d ", spp_cnat_logger_table[error_code].param_name[j], arg[j]); + if (j == (num_args - 1)) { + printf("\n"); + } + } +#endif + } +} + +#else /* TOBE_PORTEED */ +void spp_trace_logger(u16 error_code, u16 num_args, u32 *arg) +{ + /* To be filled */ +} + +void spp_trace_log_init(void) +{ + /* To be filled */ +} + +void init_trace_log_buf_pool(void) +{ + /* To be filled */ +} + +void spp_printf(u16 error_code, u16 num_args, u32 *arg) +{ + /* To be filled */ +} + +inline u32 spp_trace_log_get_unix_time_in_seconds (void) +{ + vlib_main_t *vlib_main; + + vlib_main = vlib_get_main(); + return(vlib_time_now((vlib_main_t *) vlib_main)); +} + +#endif /* TOBE_PORTED */ + diff --git a/plugins/vcgn-plugin/vcgn/spp_platform_trace_log.h b/plugins/vcgn-plugin/vcgn/spp_platform_trace_log.h new file mode 100644 index 00000000..36da710f --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/spp_platform_trace_log.h @@ -0,0 +1,358 @@ +/* + *------------------------------------------------------------------ + * spp_platform_trace_log.h + * + * Copyright (c) 2009-2013 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ + +#ifndef __SPP_PLATFORM_TRACE_LOG_H__ +#define __SPP_PLATFORM_TRACE_LOG_H__ + +#include <stdio.h> +#include <vppinfra/vec.h> +#include <vppinfra/bitmap.h> +#include <vppinfra/hash.h> +#include <vppinfra/pool.h> +#include <vppinfra/clib.h> + +#include "spp_ctx.h" +#include "spp_timers.h" + + +typedef enum { + SPP_LOG_LTRACE, + SPP_LOG_MAX +} spp_log_type_t; + +typedef struct { + u32 num_traces; +} spp_trace_log_hdr_t; + +typedef struct { + u16 error_code; + u16 num_args; + u32 arg[0]; +} spp_trace_log_t; + +#define DUMP_PKT_IDX 61 +#define OCTEON_SENSOR_READ 62 + +typedef enum { + CNAT_ERROR_SUCCESS, + CNAT_NO_CONFIG_ERROR, + CNAT_NO_VRF_RUN_ERROR, + CNAT_NO_POOL_FOR_ANY_ERROR, + CNAT_NO_PORT_FOR_ANY_ERROR, + CNAT_BAD_INUSE_ANY_ERROR, + CNAT_NOT_FOUND_ANY_ERROR, + CNAT_INV_PORT_FOR_DIRECT_ERROR, + CNAT_BAD_INUSE_DIRECT_ERROR, + CNAT_NOT_FOUND_DIRECT_ERROR, + CNAT_OUT_OF_PORT_LIMIT_ERROR, + CNAT_MAIN_DB_CREATE_ERROR, + CNAT_LOOKUP_ERROR, + CNAT_INDEX_MISMATCH_ERROR, + CNAT_PACKET_DROP_ERROR, + CNAT_INV_UNUSED_USR_INDEX, + CNAT_INVALID_VRFMAP_INDEX, + CNAT_USER_OUT_OF_PORTS, + CNAT_EXT_PORT_THRESH_EXCEEDED, + CNAT_EXT_PORT_THRESH_NORMAL, + CNAT_NO_EXT_PORT_AVAILABLE, + CNAT_SESSION_THRESH_EXCEEDED, + CNAT_SESSION_THRESH_NORMAL, + WQE_ALLOCATION_ERROR, + ERROR_PKT_DROPPED, + SYSMGR_PD_KEY_CREATION_ERROR, + SYSMGR_PD_SHMEM_ID_ERROR, + SYSMGR_PD_SHMEM_ATTACH_ERROR, + OCTEON_CKHUM_SKIPPED, + PK0_SEND_STATUS, + CMD_BUF_ALLOC_ERR, + SPP_CTX_ALLOC_FAILED, + SPP_MAX_DISPATCH_REACHED, + HA_SIGCHILD_RECV, + SIGACTION_ERR, + HA_INVALID_SEQ_OR_CONFIG_OR_TYPE, + NODE_CREATION_ERROR, + CNAT_CLI_INVALID_INPUT, /* new adds as part of CSCto04510, see sub codes below */ + CNAT_DUMMY_HANDLER_HIT, /* Has sub codes , see spp_dummy_handler_sub_cdes_t */ + CNAT_CONFIG_ERROR, /* has subcodes-see spp_config_error_sub_codes_t below */ + CNAT_NFV9_ERROR, /* Has sub codes see spp_nfv9_error_sub_codes_t below */ + CNAT_CMVX_TWSI_READ_WRITE_FAIL, /* Hassub codes see spp_cmvx_error_sub_codes_t */ + CNAT_TEMP_SENSOR_TIMEOUT, + CNAT_TEMP_SENSOR_DATA_MISMATCH, + CNAT_TEMP_SENSOR_CONFIG_FAILED, + HA_APP_NOT_RESPONDING, + HA_DATA_PATH_TEST_FAILED, + CNAT_WRONG_PORT_ALLOC_TYPE, + CNAT_NEW_PORT_ALLOC_ERROR, + CNAT_INVALID_INDEX_TO_FREE_PORT, + CNAT_DELETE_DB_ENTRY_NO_PORTMAP, + CNAT_MAIN_DB_LIMIT_ERROR, + CNAT_USER_DB_LIMIT_ERROR, + CNAT_FRAG_DB_ERROR, /* see spp_frag_db_error_sub_codes_t below */ + + DROP_PKT_DUMP, + CNAT_NAT64_SYSTEM_LIMIT_ERROR, + CNAT_ERROR_MAX +} spp_error_codes_t; + +typedef enum { + + TCP_MSS_INVALID_IVRF = 10, /* 1 param - vrf id */ + NFV9_LOG_INVALID_IP_OR_PORT = 20, /* 2 params - nfv9 server ip and port */ + NFV9_LOG_INVALID_PARAMS_OTHERS, /* 3 params, ref rate, time out, path mtu */ + NFV9_LOG_PATH_MTU_TOO_SMALL, /* 1 param, path mtu passed */ + NFV9_LOG_CANNOT_ADD_VRF_NOT_FOUND, /* 1 param, in vrf id */ + + VRF_MAP_ADDR_POOL_START_ADDR_GT_END_ADDR = 30, /* 2 params, start and end addr */ + VRF_MAP_ADDR_POOL_ADDR_POOL_TOO_LARGE, /* 2 params, start and end addr */ + VRF_MAP_ADDR_POOL_INVALID_IN_OR_OUT_VRF, /* 2 params, in vrf and out vrf */ + VRF_MAP_ADDR_POOL_TOO_LARGE_FOR_CORE, /* 2 params, pool size, core instance */ + VRF_MAP_DEL_POOL_START_ADDR_GT_END_ADDR, /* 2 params, start and end addr */ + VRF_MAP_DEL_POOL_ADDR_POOL_NOT_FOUND, /* 2 params, start and end addr */ + VRF_MAP_DEL_POOL_VRF_MAP_EMPTY, /* 2 params, start and end addr */ + + ADD_SVI_ADDR_INVALID_VRF = 40, /* 2 params, vrf passed and ipv4 addr */ + ADD_SVI_INDEX_INVALID_VRF, /* 2 params, vrf, uidb_index */ + + MAPPED_STAT_PORT_INVALID_OUTPUT_PARAMS = 50, + /* 3 params, out vrf, out ip, out port */ + MAPPED_STAT_PORT_UDP_PORT_POLARITY_MISMATCH, /* 2 params, in port and out port */ + MAPPED_STAT_PORT_IN_VRF_MAP_EMPTY, /* 1 param, in vrf id passed */ + MAPPED_STAT_PORT_VRF_MAP_NOT_IN_S_RUN, /* 1 param, vrf map status */ + MAPPED_STAT_PORT_INVALID_OUT_VRF_ID, /* 1 param, out vrf id passed */ + MAPPED_STAT_PORT_FAILED_TO_ADD_STAT_PORT, /* 4 params, in vrf, in ip, in port, error code */ + + STAT_PORT_INVALID_IN_PARAMS = 60, /* 4 params, in vrf, in ip, in port, proto */ + STAT_PORT_FAILED_TO_ADD_STAT_PORT, /* 4 params, in vrf, in ip, in port, error code */ + STAT_PORT_CONFIG_IN_USE, /* 4 params, in vrf, in ip, in port, proto */ + + DEL_STAT_PORT_IN_VRF_MAP_EMPTY = 70, /* 1 param, in vrf id passed */ + DEL_STAT_PORT_INVALID_IN_PARAMS, /* 4 params, in vrf, in ip, in port, proto */ + DEL_STAT_PORT_CANNOT_DELETE_NO_ENTRY, /* 4 params, in vrf, in ip, in port, proto */ + DEL_STAT_PORT_CANNOT_DELETE_NOT_STATIC_PORT, /* 4 params, in vrf, in ip, in port, proto*/ + + XLAT_SVI_CFG_INVALID_INDEX = 80, /* 1 param - uidb_index */ + XLAT_WRONG_V6_PREFIX_MASK, /* 1 param - v6 prefix mask */ + XLAT_INVALID_XLAT_ID_ERROR, /* 1 param - id */ + + V6RD_INVALID_6RD_ID_ERROR = 90, /*1 param - id */ + MAPE_INVALID_MAPE_ID_ERROR = 100 /* param - id */ +} spp_config_error_sub_codes_t; + +typedef enum { + CONFIG_DUMMY, + CONFIG_DUMMY_MAX, + SHOW_DUMMY, + SHOW_DUMMY_MAX, + DEBUG_DUMMY, + DEBUG_DUMMY_MAX +} spp_dummy_handler_sub_cdes_t; + +typedef enum { + CMVX_READ, + CMVX_WRITE +} spp_cmvx_error_sub_codes_t; + +typedef enum { + FRAG_DB_INVALID_BUCKET, + FRAG_DB_NO_ENTRY +} spp_frag_db_error_sub_codes_t; + +typedef enum { + CLI_INVALID_PAYLOAD_SIZE, + CLI_INVALID_MSG_ID +} spp_cli_error_sub_codes_t; + +typedef enum { + NFV9_DOWNSTREAM_CONGESTION, + NFV9_FAILED_TO_CREATE_CONTEXT +} spp_nfv9_error_sub_codes_t; + +typedef struct spp_cnat_logger_tbl_t_ { + u16 error_code; // The thread id stored by software + u16 num_args; + u16 rate_limit_time; // If we need to rate_limit logging + u8 param_name[7][32];// Parameter name for debug purposes +} spp_cnat_logger_tbl_t; + +extern spp_cnat_logger_tbl_t spp_cnat_logger_table[]; + +/* + * This corresponds to the length of the IMETRO SHIM Header for RODDICK + * For non-roddick cases, introduce an Ethernet header as well + */ +#if defined(RODDICK) +#define SPP_TRACE_LOG_SHIM_HDR_OFFSET 8 +#define SPP_TRACE_LOG_ENCAPS_OFFSET 0 +#else +#define SPP_TRACE_LOG_SHIM_HDR_OFFSET 0 +#define SPP_TRACE_LOG_ENCAPS_OFFSET 16 +#endif + +#define SPP_LOG_TRACE_HEADER_LENGTH \ + (sizeof(spp_trace_log_hdr_t)) + + +#define SPP_TRACE_LOG_IP_HDR_OFFSET \ + (SPP_TRACE_LOG_ENCAPS_OFFSET + \ + SPP_TRACE_LOG_SHIM_HDR_OFFSET) + + +#define SPP_TRACE_LOG_UDP_HDR_OFFSET \ + (SPP_TRACE_LOG_IP_HDR_OFFSET + sizeof(ipv4_header)) + +#define SPP_TRACE_LOG_HDR_OFFSET \ + (SPP_TRACE_LOG_UDP_HDR_OFFSET + sizeof(udp_hdr_type_t)) + +#define SPP_TRACE_LOG_RECORD_LENGTH 4 + +/* + * Let us put the maximum length of the log data to be 1400 + */ +#define SPP_TRACE_LOG_MAX_PKT_LENGTH 800 + +/* Structures and defines to store log info for MSC */ +#define SPP_TRACE_LOG_INVALID_LOGGING_INDEX 0xffffffff + +/* + * This structure stores the Logging information on per LOG TYPE + * basis. This structure is allocated from a pool and index + * to this structure based on log type + */ +typedef struct { + /* + * This field determines the maximum size of the Netflow V9 information + * that can be stored in a logging packet + */ + u16 max_length_minus_max_record_size; + + u32 sequence_num; /* Sequence number of the logging packet */ + u32 last_pkt_sent_count; + u16 pkt_length; /* Length of the currently NFv9 information */ + u16 log_record_length; /* Length of add record */ + u16 total_record_length; /* number of trace records */ + u16 total_record_count; + spp_log_type_t log_type; + /* + * current logging context + */ + spp_ctx_t *current_logging_context; + + /* + * Timestamp in UNIX seconds corresponding to when the current + * logging packet was created + */ + u32 current_logging_context_timestamp; + + /* + * Queued logging context waiting to be sent to the l3 infra node + */ + spp_ctx_t *queued_logging_context; + + /* + * Headers corresponding to various records in this + * current nfv9 logging context + */ + spp_trace_log_t *log_record; + spp_trace_log_hdr_t *log_header; + u8 *next_data_ptr; + +} spp_trace_log_info_t; + +typedef struct { + /* + * spp_ctx_alloc() call failed + */ + u64 spp_trace_log_context_creation_fail_count; + + /* + * Cannot send the existing logging pkt, so cannot create + * any additional packets for logging purposes + */ + u64 spp_trace_log_context_creation_deferred_count; + + /* + * Cannot send the existing logging pkt due to cnat_rewrite_output + * superframe being full. + */ + u64 spp_trace_log_downstream_constipation_count; +} spp_global_counters_t; + + +/* + * Global structure for SPP LOGS + */ +typedef struct { + /* A timer structure to periodically send log packets + * that have been waiting to be full for a long time. This will + * ensure event/error logs don't get delayed too much before they + * are sent to the MSC. + */ + spp_timer_t log_timer; + + /* + * Node index corresponding to the infra L3 output node + * to which the nfv9 logging node will send the packet + */ + u16 spp_trace_log_disp_node_index; + + /* + * Whether we have initialized the NFv9 information + */ + u8 spp_trace_log_init_done; + + /* + * pool index in global pool based on log type + */ + u32 spp_log_pool_index[SPP_LOG_MAX]; + +} spp_trace_log_global_info_t; + + +extern spp_timer_t sensor_timer; +extern spp_trace_log_info_t spp_default_trace_log_info; +extern spp_trace_log_info_t *spp_trace_log_info_pool; + +extern spp_trace_log_global_info_t spp_trace_log_global_info; + +void spp_trace_logger(u16 error_code, u16 num_args, u32 *arg); +void spp_trace_log_init(void); +void init_trace_log_buf_pool(void); +void spp_printf(u16 error_code, u16 num_args, u32 *arg); + +/* + * The following 2 functions are temporary hacks until + * we have RTC support from the PD nodes + */ +#if 0 +inline +u32 spp_trace_log_get_sys_up_time_in_ms (void); +#endif +extern +u32 spp_trace_log_get_unix_time_in_seconds (void); + +enum { + TEMPERATURE_SENSOR_TEST_MODE, + TEMPERATURE_SENSOR_QUIET_MODE, +}; + +extern int temperature_read_blocked; + +void read_octeon_sensors(u8 mode); +void Init_temperature_sensors(); +#endif /* __SPP_PLATFORM_TRACE_LOG_H__ */ diff --git a/plugins/vcgn-plugin/vcgn/spp_timers.h b/plugins/vcgn-plugin/vcgn/spp_timers.h new file mode 100644 index 00000000..afb0147b --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/spp_timers.h @@ -0,0 +1,139 @@ +/* + *------------------------------------------------------------------ + * spp_timers.h + * + * Copyright (c) 2008-2009 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ +#ifndef __SPP_TIMERS_H__ +#define __SPP_TIMERS_H__ + + +typedef struct d_list_el_ { + struct d_list_el_ *next; + struct d_list_el_ *prev; +} d_list_el_t; + +/* + * d_list_init + */ + +static inline void d_list_init (d_list_el_t *headp) +{ + headp->prev = headp->next = headp; +} + +/* + * d_list_init - add at head of list + */ + +static inline void d_list_add_head (d_list_el_t *headp, + d_list_el_t *elp) +{ + ASSERT(elp->prev == elp); /* multiple enqueue, BAD! */ + ASSERT(elp->next == elp); + + elp->next = headp->next; + headp->next = elp; + elp->prev = elp->next->prev; + elp->next->prev = elp; +} + +/* + * d_list_add_tail - add element at tail of list + */ +static inline void d_list_add_tail (d_list_el_t *headp, + d_list_el_t *elp) +{ + ASSERT(elp->prev == elp); /* multiple enqueue, BAD! */ + ASSERT(elp->next == elp); + + headp = headp->prev; + + elp->next = headp->next; + headp->next = elp; + elp->prev = elp->next->prev; + elp->next->prev = elp; +} + +/* + * d_list_rem_head - removes first element from list + */ +static inline d_list_el_t *d_list_rem_head (d_list_el_t *headp) +{ + d_list_el_t *elp; + + elp = headp->next; + if (elp == headp) + return (NULL); + headp->next = elp->next; + elp->next->prev = elp->prev; + + elp->next = elp->prev = elp; + return (elp); +} + +/* + * d_list_rem_elem - removes specific element from list. + */ +static inline void d_list_rem_elem (d_list_el_t *elp) +{ + d_list_el_t *headp; + + headp = elp->prev; + + headp->next = elp->next; + elp->next->prev = elp->prev; + elp->next = elp->prev = elp; +} + +#define TIMER_BKTS_PER_WHEEL 128 /* power of 2, please */ +#define TIMER_NWHEELS 4 + +typedef struct { + i32 curindex; /* current index for this wheel */ + d_list_el_t *bkts; /* vector of bucket listheads */ +} spp_timer_wheel_t; + + +typedef struct { + u64 next_run_ticks; /* Next time we expire timers */ + spp_timer_wheel_t **wheels; /* pointers to wheels */ +} spp_timer_axle_t; + + +typedef struct { + d_list_el_t el; + u16 cb_index; + u16 flags; + u64 expires; +} spp_timer_t; + +#define SPP_TIMER_RUNNING 0x0001 + + +/* + * prototypes + */ +void spp_timer_set_ticks_per_ms(u64); +void spp_timer_axle_init (spp_timer_axle_t *ta); +void spp_timer_expire(spp_timer_axle_t *ta, u64 now); +void spp_timer_final_init(void); + +void spp_timer_start(spp_timer_t *tp); +void spp_timer_start_axle(spp_timer_axle_t *ta, spp_timer_t *tp); +void spp_timer_stop(spp_timer_t *tp); +u16 spp_timer_register_callback (void (*fp)(spp_timer_t *)); + +#endif /* __SPP_TIMERS_H__ */ diff --git a/plugins/vcgn-plugin/vcgn/tcp_header_definitions.h b/plugins/vcgn-plugin/vcgn/tcp_header_definitions.h new file mode 100644 index 00000000..02920bcc --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/tcp_header_definitions.h @@ -0,0 +1,1582 @@ +/* + *----------------------------------------------------------------------------- + * + * Filename: tcp_header_definitions.h + * + * Description: Layer 2, 3, 4 definitions and header types + * + * Assumptions and Constraints: + * + * Copyright (c) 2012-2013 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *----------------------------------------------------------------------------- + */ + +#ifndef __TCP_HEADER_DEFINITIONS_H__ +#define __TCP_HEADER_DEFINITIONS_H__ + +/* + * A general list of Layer 3 protocols, used by many Layer 2 encaps. + * + * formerly: + * TYPE_IP TYPE_IP10MB + * TYPE_ARP TYPE_RFC826_ARP + * TYPE_RARP TYPE_REVERSE_ARP + * TYPE_MPLS TYPE_TAGSWITCH + */ +#define TYPE_IP 0x0800 +#define TYPE_IP_V6 0x86DD +#define TYPE_ARP 0x0806 +#define TYPE_RARP 0x8035 +#define TYPE_MPLS 0x8847 +#define TYPE_CDP 0x2000 +#define TYPE_CGMP 0x2001 +#define TYPE_LACP 0x8808 /* 802.3ad */ +#define TYPE_CLNS 0xFEFE + +#define TYPE_PPPOE_SESSION 0x8864 /* PTA plus */ +#define TYPE_PPPOE_DISCOVERY 0x8863 /* PTA plus */ + +/* + * for atm arp handling + */ +#define IN_ATM_ARP_BIT 0x0008 + +/* + * The Layer 2 header structures. + */ + + +/* +** HDLC +*/ + +typedef struct hdlc_hdr_type { + u16 addr; + u16 type; + u8 data[0]; +} hdlc_hdr_type; + +#define HDLC_ADDR_CMD 0x0F00 +#define HDLC_HDR_LEN 4 +#define HDLC_BROADCAST_BIT 31 +#define TYPE_KEEP 0x8035 + +#define HDLC_CLNS (HDLC_ADDR_CMD<<16|TYPE_CLNS) +#define HDLC_CDP (HDLC_ADDR_CMD<<16|TYPE_CDP) +#define HDLC_MPLS (HDLC_ADDR_CMD<<16|TYPE_MPLS) +#define HDLC_IP (HDLC_ADDR_CMD<<16|TYPE_IP) +#define HDLC_IP_V6 (HDLC_ADDR_CMD<<16|TYPE_IP_V6) +#define HDLC_KEEPALIVE_CMD (HDLC_ADDR_CMD<<16|TYPE_KEEP) + +/* +** PPP +*/ + +typedef struct ppp_comp_hdr_type { + union { + u8 ppp_u8[4]; + u16 ppp_u16[2]; + u32 ppp_u32; + } ppp_comp_u; +} ppp_comp_hdr_type; + +#define PPP_STATION 0xFF03 +#define PPP_STATION_LEN 0x2 +#define PPP_ENDPROTO 0x01 +#define PPP_NOT_ENDPROTO 0xfffffffe +#define PPP_CONTROL_PROTOCOL_MASK 0x8000 +#define PPP_CONTROL_PROTOCOL_BIT 15 +#define PPP_CSCO_LEN 4 +#define PPP_RFC1661_LEN 2 +#define PPP_RFC1661_COMP_LEN 1 + +#define TYPE_PPP_IP 0x0021 +#define TYPE_PPP_IP_V6 0x0057 +#define TYPE_PPP_MPLS_UNICAST 0x0281 +#define TYPE_PPP_MPLS_CONTROL 0x8281 +#define TYPE_PPP_CLNS 0x0023 +#define TYPE_PPP_CDP 0x0207 + +#define TYPE_PPP_IPCP 0x8021 +#define TYPE_PPP_LCP 0xC021 +#define TYPE_PPP_PAP 0xC023 +#define TYPE_PPP_LQR 0xC025 +#define TYPE_PPP_CHAP 0xC223 + + +#define TYPE_PPP_LCP_ECHO_REQUEST 0x09 +/* +** MultiLink PPP +*/ + +#define MLPPP_FLAGS_FIELD_LEN 4 +#define MLPPP_BEGIN_MASK 0x80000000 +#define MLPPP_END_MASK 0x40000000 +#define MLPPP_BEGIN_END_MASK (MLPPP_BEGIN_MASK|MLPPP_END_MASK) +#define MLPPP_BEGIN_END_SHIFT 30 +#define MLPPP_SEQUENCE_NUM_MASK 0x00FFFFFF +#define MLPPP_MC_CLASS_ID_MASK 0x3C000000 +#define MLPPP_MC_CLASS_SHIFT 26 + +#define TYPE_PPP_MULTILINK 0x003D + +/* these are needed in the micro-code, for optimizations */ +#define TYPE_PPP_FULL_IP_4 0xff030021 +#define TYPE_PPP_FULL_IP_3 0xff0321 +#define TYPE_PPP_FULL_IP_2 0x0021 +#define TYPE_PPP_FULL_IP_1 0x21 + +#define MLPPP_BEGIN_END_MASK_BYTE 0xC0 +#define MLPPP_BEGIN_BIT 7 +#define MLPPP_END_BIT 6 +#define MLPPP_MC_CLASS_ID_MASK_BYTE 0x3C +#define MLPPP_MC_CLASS_ID_SHIFT_BYTE 2 + +#define MLPOA_BEGIN_END_SHIFT 24 + +/* +** Ethernet ARPA +*/ + + +typedef struct ethernet_arpa_hdr_type { + u8 daddr[6]; + u8 saddr[6]; + u16 type; + u8 data[0]; +} ethernet_arpa_hdr_type; + +typedef struct extension_802p3_type { + u16 type; + u8 ctl; + u8 data[0]; +} extension_802p3_type; + +typedef struct ethernet_802p3_hdr_type { + u8 daddr[6]; + u8 saddr[6]; + u16 length; + extension_802p3_type extension; +} ethernet_802p3_hdr_type; + + +typedef struct ethernet_vlan_802p3_hdr_type { + u8 daddr[6]; + u8 saddr[6]; + u16 type1; + u16 vlan_id; + u16 length; + extension_802p3_type extension; +} ethernet_vlan_802p3_hdr_type; + +#define MIN_ETHERNET_PKT_LEN 60 +#define MAX_ETHERNET_PKT_LEN 1500 +#define ETHERNET_ARPA_HDR_LEN 14 +#define ETHERNET_TYPE_FIELD_SIZE 2 + + +/* +** Ethernet 802.1q (VLAN) +*/ + +typedef struct ethernet_vlan_hdr_type { + u8 dest_addr[6]; + u8 src_addr[6]; + u16 type1; + u16 vlan_hdr; + u16 type2; + u8 data[0]; +} ethernet_vlan_hdr_type; + + +/* +** Ethernet 802.1.q-in-q (QinQ) +*/ + +typedef struct ethernet_qinq_hdr_type { + u8 dest_addr[6]; + u8 src_addr[6]; + u16 type1; + u16 vlan_hdr1; + u16 type2; + u16 vlan_hdr2; + u16 type3; + u8 data[0]; +} ethernet_qinq_hdr_type; + + +/* +** Ethernet 802.3ad EtherChannel control +*/ + +typedef struct ethernet_lacp_hdr_type { + u8 daddr[6]; + u8 saddr[6]; + u16 type; + u16 LAcmd; + u8 data[0]; +} ethernet_lacp_hdr_type; + + +/* +** Ethernet 802.1 Bridge (spanning tree) PDU +*/ + +typedef struct ethernet_bpdu_hdr_type { + u8 daddr[6]; + u8 saddr[6]; + u8 dsap; + u8 ssap; + u8 control; + u8 more[0]; +} ethernet_bpdu_hdr_type; + +#define ETH_BPDU_DSAP 0x42 +#define ETH_BPDU_SSAP 0x42 +#define ETH_BPDU_CONTROL 0x03 +#define ETH_BPDU_MATCH 0x424203 + + +/************************************************************/ +/* PTA PLUS ETHERNET ENCAPSULATIONS */ +/* + * PPPoEoARPA 20 bytes + */ +typedef struct ethernet_pppoe_arpa_hdr_type { + u8 daddr[6]; + u8 saddr[6]; + u16 type; + /* pppoe hdr at begining of enet payload */ + u16 vtc; /* version(4b), type(4b) and code(8b) fields */ + u16 sid; + u16 len; + u8 ppp_header[0]; /* PPP header start, no ff03 field present */ +} ethernet_pppoe_arpa_hdr_type; + +typedef struct pppoe_hdr_type { + /* pppoe hdr at begining of enet payload */ + u16 vtc; /* version(4b), type(4b) and code(8b) fields */ + u16 sid; + u16 len; + u8 ppp_header[0]; /* PPP header start, no ff03 field present */ +} pppoe_hdr_type; + +/* +** PPPoEoVLAN (802.1p or 802.1q) 24 bytes +*/ +typedef struct ethernet_pppoe_vlan_hdr_type { + u8 dest_addr[6]; + u8 src_addr[6]; + u16 type1; + u16 vlan_hdr; + u16 type2; + /* pppoe hdr at begining of enet payload */ + u16 vtc; /* version(4b), type(4b) and code(8b) fields */ + u16 sid; + u16 len; + u8 ppp_header[0]; /* PPP header start, no ff03 field present */ +} ethernet_pppoe_vlan_hdr_type; + +/* +** PPPoEoQinQ 28 bytes +*/ +typedef struct ethernet_pppoe_qinq_hdr_type { + u8 dest_addr[6]; + u8 src_addr[6]; + u16 type1; + u16 vlan_hdr1; + u16 type2; + u16 vlan_hdr2; + u16 type3; + /* pppoe hdr at begining of enet payload */ + u16 vtc; /* version(4b), type(4b) and code(8b) fields */ + u16 sid; + u16 len; + u8 ppp_header[0]; /* PPP header start, no ff03 field present */ +} ethernet_pppoe_qinq_hdr_type; + +#define ETH_PPPOE_ARPA_HDR_LEN sizeof(ethernet_pppoe_arpa_hdr_type) +#define ETH_PPPOE_VLAN_HDR_LEN sizeof(ethernet_pppoe_vlan_hdr_type) +#define ETH_PPPOE_QINQ_HDR_LEN sizeof(ethernet_pppoe_qinq_hdr_type) +#define PPPOE_HDR_LEN 6 +/* End PTA PLUS ETHERNET ENCAPSULATIONS */ +/****************************************************************/ + + + +#define TYPE_DOT1Q 0x8100 +#define DOT1Q_HDR_LEN 18 +#define DOT1Q_VLAN_ID_MASK 0x0FFF +#define DOT1Q_VLAN_ID_RES_0 0x0000 +#define DOT1Q_VLAN_ID_RES_4095 0x0FFF +#define DOT1Q_ARPA_INDEX DOT1Q_VLAN_ID_RES_0 + +#define TYPE_QINQ_91 0x9100 +#define TYPE_QINQ_92 0x9200 +#define TYPE_QINQ_88A8 0x88A8 +#define QINQ_HDR_LEN 22 + +/* + * 802.1p support + */ +#define DOT1P_VLAN_COS_MASK 0xE000 +#define DOT1P_VLAN_COS_SHIFT 13 +#define DOT1P_MAX_COS_VALUE 7 + +/* +** Frame Relay +*/ + +/* + * formerly: + * TYPE_FR_IETF_IPV4 ENCAPS_FR_IETF + * TYPE_FR_CISCO_IPV4 ENCAPS_FR_CISCO + * TYPE_FR_ISIS ENCAPS_FR_ISIS + * + * FR_LMI_DLCI_CISCO LMI_DLCI_CISCO + * FR_LMI_DLCI_IETF LMI_DLCI_ITUANSI + */ + +typedef struct frame_relay_hdr_type { + u16 address; + u16 control_nlpid; + u8 data[0]; +} frame_relay_hdr_type; + +typedef struct fr_snap_hdr_type { + u16 address; + u8 control; + u8 pad; + u8 nlpid; + u8 oui[3]; + u16 protocol_id; +} fr_snap_hdr_type; + +#define FR_ADDR_LEN 2 +#define FR_CTL_NLPID_LEN 2 +#define FR_HDR_LEN (FR_ADDR_LEN+FR_CTL_NLPID_LEN) + +/* + * These defines are for the FR-SNAP header. + * The SNAP header is set up solely so that we can + * identify ARP packets, which look like this: + * + * control pad nlpid oui protocol_id + * 03 00 80 00 00 00 0806 + */ +#define FR_ARP_CONTROL 0x03 +#define FR_ARP_PAD 0x00 +#define FR_ARP_NLPID 0x80 +#define FR_ARP_OUI_0 0x00 +#define FR_ARP_OUI_1 0x00 +#define FR_ARP_OUI_2 0x00 +/* + * these are used only in the tmc code + */ +#define FR_NLPID_OUI_LEN 4 +#define FR_ARP_CONTROL_PAD 0x0300 +#define FR_ARP_NLPID_OUI 0x80000000 + + +#define FR_DLCI_UPPER_MASK 0xFC00 +#define FR_DLCI_UPPER_SHIFT 6 +#define FR_DLCI_LOWER_MASK 0x00F0 +#define FR_DLCI_LOWER_SHIFT 4 + +/* + * Defines for converting a DLCI for insertion into a synthesized FR address + * field for FRoMPLS disposition. + + * bit 8 7 6 5 4 3 2 1 + * +-------------------------------+ + * | Flag | + * | 0 1 1 1 1 1 1 0 | + * +-------------------------------+ + * | Upper DLCI |C/R| 0 | + * +-------------------------------+ + * | Lower DLCI | F | B | DE| 1 | + * +-------------------------------+ + * | | + * :Frame relay information field : + * : (i.e.payload) : + * | | + * +-------------------------------+ + * | FCS (2 or 4 octets) | + * | | + * +-------------------------------+ + * | Flag | + * | 0 1 1 1 1 1 1 0 | + * +-------------------------------+ + * + * a-With 10 bits for the DLCI + */ +#define FR_DLCI_TO_HDR_UPPER_MASK 0x3f0 +#define FR_DLCI_TO_HDR_UPPER_SHIFT (10-4) +#define FR_DLCI_TO_HDR_LOWER_MASK 0xf +#define FR_DLCI_TO_HDR_LOWER_SHIFT 4 + +#define TYPE_FR_IETF_IP 0x03CC +#define TYPE_FR_IETF_IP_V6 0x038E +#define TYPE_FR_CISCO_IP 0x0800 +#define TYPE_FR_CISCO_IP_V6 0x86DD +#define TYPE_FR_ISIS 0x0383 +#define TYPE_FR_SNAP0PAD 0x0380 +#define TYPE_FR_SNAP1PAD 0x0300 +#define TYPE_FR_FRF12 0x03B1 +#define TYPE_FR_MLP 0x03CF +#define TYPE_FR_EEK 0x8037 + +#define FR_LMI_DLCI_CISCO 1023 +#define FR_LMI_DLCI_IETF 0 + +#define FR_NOT_NOT_NOT 0 +#define FR_NOT_NOT_DE 1 +#define FR_NOT_BECN_NOT 2 +#define FR_NOT_BECN_DE 3 +#define FR_FECN_NOT_NOT 4 +#define FR_FECN_NOT_DE 5 +#define FR_FECN_BECN_NOT 6 +#define FR_FECN_BECN_DE 7 + +#define FR_FECN_BECN_DE_MASK 0x000E +#define FR_FECN_BECN_DE_SHIFT 1 + +/* Address field extension bit for standard 2-byte FR address field */ +#define FR_EA1_MASK 0x0001 +#define FR_EA1_MASK_BIT 0 + +/* + * these are needed in the micro-code, for optimizations + */ + +/* the bit position (in the address field) of the LSB of the DLCI */ +#define FR_DLCI_LS_BIT 4 + + +/* +** +** MultiLink Frame Relay +** +*/ + +typedef struct mlfr_hdr_type { + u16 frag_hdr; + u16 address; + u16 control_nlpid; + u8 data[0]; +} mlfr_hdr_type; + +/* + * LIP frames have B, E and C set--the other + * bits in the frag_hdr field are irrelevant. + * + * NOTE: Injected LIP packets have a frag_hdr of 0xE100. + * + */ +#define MLFR_LIP_FRAME 0xE100 +#define MLFR_LIP_MASK 0xE000 +#define MLFR_FRAG_HDR_LEN 2 + +#define MLFR_BEGIN_MASK 0x8000 +#define MLFR_END_MASK 0x4000 +#define MLFR_BEGIN_END_MASK (MLFR_BEGIN_MASK|MLFR_END_MASK) +#define MLFR_BEGIN_END_SHIFT 14 + +#define MLFR_SEQ_NUM_HI_MASK 0x1E00 +#define MLFR_SEQ_NUM_HI_SHIFT 1 +#define MLFR_SEQ_NUM_LO_MASK 0x00FF + +/* + * these are needed in the micro-code, for optimizations + */ +#define MLFR_BEGIN_END_MASK_BYTE 0xC0 + + +/* + * FRF.12 definitions + */ +typedef struct frf12_hdr_type_ { + u16 address; + u16 control_nlpid; + u16 frag_hdr; + u8 data[0]; +} frf12_hdr_type; + +#define FRF12_FRAG_HDR_LEN sizeof(frf12_hdr_type) + +#define FRF12_BEGIN_MASK 0x8000 +#define FRF12_END_MASK 0x4000 +#define FRF12_BEGIN_END_MASK (FRF12_BEGIN_MASK|FRF12_END_MASK) +#define FRF12_BEGIN_END_SHIFT 8 + +#define FRF12_SEQ_NUM_HI_MASK 0x1E00 +#define FRF12_SEQ_NUM_HI_SHIFT 1 +#define FRF12_SEQ_NUM_LO_MASK 0x00FF +#define FRF12_BEGIN_END_MASK_BYTE 0xC0 + + + +/* +** +** MLP over Frame Relay +** The ppp hdr can be either a +** an MLP hdr or a PPP hdr +** +** MLP can be compressed or not: +** a) 0xff03003d +** b) 0x003d +** c) 0x3d +** followed by: +** 1 byte with begin/end bits +** 3 bytes of a sequence # +** +** PPP can be also be compressed or not. +** Only these will be fwded: +** a) 0xff030021 +** b) 0xff0321 +** c) 0x0021 +** d) 0x21 +** +** +*/ +typedef struct mlpofr_hdr_type { + u16 address; + u16 control_nlpid; + u8 ppp_header[0]; +} mlpofr_hdr_type; + +/* +** ATM - +*/ + +/* + * channel_handle is defined as follows: + * + * bits 15 = reserved (must be 0) + * bits 14 - 0 = channel handle + * + * + * flags is a bitfield defined as follows: + * + * bits 15 - 13 = proto (PPPoA RFC1661 = 0, + * PPPoE = 1, + * RBE = 2, + * PPPoA Cisco = 3, + * MLPoATM RFC1661 = 4, + * MLPoATM Cisco = 5, + * Reserved = 6-7) + * bit 12 = encap (MUX=0, + * SNAP=1) + * bits 11 - 6 = reserved (must be 0) + * bits 5 - 3 = pkt_type (AAL5 pkt = 0, + * Raw cell (includes F4 OAM) = 1, + * F5 segment OAM cell = 2 + * F5 end-to-end OAM cell = 3 + * Reserved = 4-7) + * bit 2 = EFCI (congestion indication) + * bit 1 = reserved (must be 0) + * bit 0 = CLP (cell loss priority) + */ + +typedef struct apollo_atm_generic_hdr_type { + u16 channel_handle; + u16 flags; +} apollo_atm_generic_hdr_type; + +typedef struct apollo_atm_aal5_snap_hdr_type { + u16 channel_handle; + u16 flags; + u8 dsap; + u8 ssap; + u8 control; + u8 oui[3]; + u16 type; + u8 data[0]; +} apollo_atm_aal5_snap_hdr_type; + +typedef struct atm_aal5_snap_hdr_type { + u8 dsap; + u8 ssap; + u8 control; + u8 oui[3]; + u16 pid; + u16 pad; + u8 data[0]; +} atm_aal5_snap_hdr_type; + + +typedef struct apollo_atm_aal5_snap_hdr1_type { + u16 channel_handle; + u16 flags; + u8 dsap; + u8 ssap; + u8 control; + u8 oui0; + u8 oui1; + u8 oui2; + u16 type; + u8 data[0]; +} apollo_atm_aal5_snap_hdr1_type; + +typedef struct apollo_atm_aal5_clns_hdr_type { + u16 channel_handle; + u16 flags; + u16 type; + u16 data; +} apollo_atm_aal5_clns_hdr_type; + +typedef struct apollo_atm_aal5_ilmi_hdr_type { + u16 channel_handle; + u16 flags; + u8 data[0]; +} apollo_atm_aal5_ilmi_hdr_type; + +typedef struct apollo_atm_aal5_mux_hdr_type { + u16 channel_handle; + u16 flags; + u8 data[0]; +} apollo_atm_aal5_mux_hdr_type; + +typedef struct apollo_atm_oam_f4_hdr_type { + u16 channel_handle; + u16 flags; + /* + * gcf_vpi_vci_pt_clp is a bitfield defined as follows: + * + * bits 31 - 28 = GCF + * bits 27 - 20 = VPI + * bits 19 - 4 = VCI + * bits 3 - 1 = PT + * bit 0 = CLP + */ + u32 gcf_vpi_vci_pt_clp; + u8 data[0]; +} apollo_atm_oam_f4_hdr_type; + +#define APOLLO_ATM_OAM_F4_HDR_PT_MASK 0xE +#define APOLLO_ATM_OAM_F4_HDR_PT_SHIFT 1 + +typedef struct apollo_atm_oam_f5_hdr_type { + u16 channel_handle; + u16 flags; + u8 data[0]; +} apollo_atm_oam_f5_hdr_type; + +#define APOLLO_IRONBUS_EXT_LESS_PROTO 0xFFFF0FFF +#define APOLLO_CHANNEL_HANDLE_MASK 0xFFFF +#define APOLLO_PKT_TYPE_MASK 0x0038 +#define APOLLO_PKT_TYPE_SHIFT 3 +#define APOLLO_FLAG_CLP_MASK 0x0001 +#define APOLLO_FLAG_CLP_BIT 0 + +#define APOLLO_CHANNEL_HANDLE_RES_0 0x0000 +/* + * The 1 byte HEC field is removed by the line card. + */ +#define APOLLO_F4_RX_CELL_SIZE 52 +#define APOLLO_F5_RX_CELL_SIZE 52 + +#define APOLLO_ATM_PACKET_TYPE_AAL5 0 +#define APOLLO_ATM_PACKET_TYPE_F4 1 +#define APOLLO_ATM_PACKET_TYPE_F5_SEG 2 +#define APOLLO_ATM_PACKET_TYPE_F5_E_TO_E 3 +#define APOLLO_ATM_PACKET_TYPE_4 4 +#define APOLLO_ATM_PACKET_TYPE_5 5 +#define APOLLO_ATM_PACKET_TYPE_6 6 +#define APOLLO_ATM_PACKET_RESERVED 7 + +#define APOLLO_AAL5_MUX_IP_HDR_LEN 4 +#define APOLLO_AAL5_SNAP_HDR_LEN 12 + +#define APOLLO_RCV_IRON_BUS_EXT_LEN 4 +#define APOLLO_TX_IRON_BUS_EXT_LEN 8 + +/* + * MLPoA type definitions + */ +#define MLPOA_CISCO_HDR 0xFF03 +#define MLPOA_SNAP_HDR_LEN 4 +#define MLPOA_CISCO_HDR_LEN 2 + +/************************************************************/ +/* PTA PLUS ATM ENCAPSULATIONS */ + +/* RBE header 28 bytes*/ +typedef struct apollo_atm_aal5_llcsnap_rbe_hdr_type { + u16 channel_handle; + u16 flags; + u8 dsap; + u8 ssap; + u8 control; + u8 oui[3]; + u16 pid; + u16 pad; + /* enet header within */ + u8 daddr[6]; + u8 saddr[6]; + u16 type; + u8 data[0]; /* start of IP */ +} apollo_atm_aal5_llcsnap_rbe_hdr_type; + +/* PPPoEoA header 34 bytes*/ +typedef struct apollo_atm_aal5_llcsnap_pppoe_hdr_type { + u16 channel_handle; + u16 flags; + u8 dsap; + u8 ssap; + u8 control; + u8 oui[3]; + u16 pid; + u16 pad; + /* enet header within */ + u8 daddr[6]; + u8 saddr[6]; + u16 type; + /* pppoe hdr at begining of enet payload */ + u16 vtc; /* version(4b), type(4b) and code(8b) fields */ + u16 sid; + u16 len; + u8 ppp_header[0]; /* PPP header start, no ff03 field present */ +} apollo_atm_aal5_llcsnap_pppoe_hdr_type; + + +/* PPPoA MUX 4 bytes*/ +typedef struct apollo_atm_aal5_mux_pppoa_hdr_type { + u16 channel_handle; + u16 flags; + u8 ppp_header[0]; +} apollo_atm_aal5_mux_pppoa_hdr_type; + + +/* PPPoA SNAP LLC 8 bytes */ +typedef struct apollo_atm_aal5_llcsnap_pppoa_hdr_type { + u16 channel_handle; + u16 flags; + u8 dsap; + u8 ssap; + u8 control; + u8 nlpid; + u8 ppp_header[0]; +} apollo_atm_aal5_llcsnap_pppoa_hdr_type; + +/* MLPoA MUX (generic) */ +typedef struct apollo_atm_aal5_mux_mlpoa_hdr_type { + u16 channel_handle; + u16 flags; + u8 ppp_header[0]; +} apollo_atm_aal5_mux_mlpoa_hdr_type; + +/* MLPoA SNAP LLC */ +typedef struct apollo_atm_aal5_llcsnap_mlpoa_hdr_type { + u16 channel_handle; + u16 flags; + u8 dsap; + u8 ssap; + u8 control; + u8 nlpid; + u8 ppp_header[0]; +} apollo_atm_aal5_llcsnap_mlpoa_hdr_type; + + +#define PPPOA_SNAPLLC_HDR_LEN sizeof(apollo_atm_aal5_llcsnap_pppoa_hdr_type) +#define PPPOA_MUX_HDR_LEN sizeof(apollo_atm_aal5_mux_pppoa_hdr_type) +#define PPPOE_SNAPLLC_HDR_LEN sizeof(apollo_atm_aal5_llcsnap_pppoe_hdr_type) +#define RBE_SNAPLLC_HDR_LEN sizeof(apollo_atm_aal5_llcsnap_rbe_hdr_type) + +/* End PTA PLUS ATM ENCAPSULATIONS */ +/****************************************************************/ + +#define LLCSNAP_PID_DOT3_NOFCS 0x0007 + +/* +** the SNAP header +*/ + +/* + * Note that some of these definitions are split + * up along certain word or half word boundaries + * to help expediate the TMC code. + */ +#define LLC_SNAP_HDR_DSAP 0xAA +#define LLC_SNAP_HDR_SSAP 0xAA +#define LLC_SNAP_HDR_CONTROL 0x03 +#define LLC_SNAP_HDR_OUI_0 0x00 +#define LLC_SNAP_HDR_OUI_1 0x00 +#define LLC_SNAP_HDR_OUI_2 0x00 +#define LLC_SNAP_HDR_OUI_2_CDP 0x0C + +#define LLC_SNAP_HDR_DSAP_SSAP 0xAAAA +#define LLC_SNAP_HDR_DSAP_SSAP_CTRL_OUI0 0xAAAA0300 +#define LLC_SNAP_HDR_CONTROL_OUI 0x03000000 +#define LLC_SNAP_HDR_OUI1_OUI2_CDP 0x000C2000 + + + +/* +** SRP +*/ + +/* + * The v2_gen_hdr is a 2-byte field that contains the following: + * + * [ ttl | ring_id | mode | priority | parity ] + * bits 8 1 3 3 1 + */ +typedef struct srp_hdr_type { + u16 v2_gen_hdr; + u8 dest_addr[6]; + u8 src_addr[6]; + u16 protocol; + u8 data[0]; +} srp_hdr_type; + +#define SRP_HDR_LEN 16 + +#define SRP_IB_CHANNEL_CONTROL 0x0000 +#define SRP_IB_CHANNEL_DATA_HI 0x0001 +#define SRP_IB_CHANNEL_DATA_LO 0x0002 + +#define SRP_RING_ID_MASK 0x0080 +#define SRP_RING_ID_BIT 7 + +#define SRP_MODE_BITS_MASK 0x0070 +#define SRP_MODE_BITS_SHIFT 4 +#define SRP_MODE_CONTROL_TOPOLOGY 4 +#define SRP_MODE_CONTROL_IPS 5 +#define SRP_MODE_DATA 7 + +#define SRP_PRIORITY_BITS_MASK 0x000E +#define SRP_PRIORITY_BITS_SHIFT 1 +#define SRP_PRIORITY_HIGH 7 +#define SRP_PRIORITY_PAK_PRIORITY 6 + +/* this is for the tmc code */ +#define SRP_INV_PRIORITY_BITS_MASK 0xFFF1 + +#define SRP_PROT_CONTROL_TOPOLOGY 0x2007 +#define SRP_PROT_CONTROL_IPS 0x2007 + +/* this is for the tmc code */ +#define SRP_TRUE 1 +#define SRP_FALSE 0 + +/* +** MPLS +*/ +#define MPLS_EOS_BIT 0x00000100 +#define MPLS_EOS_SHIFT 8 +#define MPLS_LABEL_SIZE 4 +#define MAX_MPLS_LABEL_STACK 6 +#define MPLS_LABEL_MASK 0xfffff000 +#define MPLS_LABEL_SHIFT 12 +#define MPLS_TTL_MASK 0x000000ff +#define MPLS_EXP_MASK 0x00000e00 +#define MPLS_EXP_SHIFT 9 +#define MPLS_EXP_TTL_MASK 0x00000eff + + + +typedef union _layer2 { + hdlc_hdr_type hdlc; + ppp_comp_hdr_type ppp; + ethernet_arpa_hdr_type eth_arpa; + ethernet_vlan_hdr_type eth_vlan; + ethernet_qinq_hdr_type eth_qinq; + ethernet_lacp_hdr_type eth_lacp; + ethernet_bpdu_hdr_type eth_bpdu; + ethernet_802p3_hdr_type eth_802p3; + ethernet_vlan_802p3_hdr_type eth_vlan_802p3; + ethernet_pppoe_arpa_hdr_type eth_pppoe_arpa; /* PTA plus */ + ethernet_pppoe_vlan_hdr_type eth_pppoe_vlan; /* PTA plus */ + ethernet_pppoe_qinq_hdr_type eth_pppoe_qinq; /* PTA plus */ + frame_relay_hdr_type frame_relay; + fr_snap_hdr_type fr_snap; + mlfr_hdr_type mlfr; + mlpofr_hdr_type mlpofr; + frf12_hdr_type frf12; + apollo_atm_generic_hdr_type atm_generic; + apollo_atm_aal5_snap_hdr_type atm_aal5_snap; + apollo_atm_aal5_snap_hdr1_type atm_aal5_snap1; + apollo_atm_aal5_clns_hdr_type atm_aal5_clns; + apollo_atm_aal5_ilmi_hdr_type atm_aal5_ilmi; + apollo_atm_aal5_mux_hdr_type atm_aal5_mux; + apollo_atm_oam_f4_hdr_type atm_oam_f4; + apollo_atm_oam_f5_hdr_type atm_oam_f5; + apollo_atm_aal5_llcsnap_rbe_hdr_type atm_aal5_rbe_snapllc; /* PTA plus */ + apollo_atm_aal5_llcsnap_pppoe_hdr_type atm_aal5_pppoe_snapllc; /* PTA plus */ + apollo_atm_aal5_mux_pppoa_hdr_type atm_aal5_pppoa_mux; /* PTA plus */ + apollo_atm_aal5_llcsnap_pppoa_hdr_type atm_aal5_pppoa_snapllc; /* PTA plus */ + apollo_atm_aal5_mux_mlpoa_hdr_type mlpoa_generic; + apollo_atm_aal5_llcsnap_mlpoa_hdr_type mlpoa_snapllc; + srp_hdr_type srp; +} layer2_t; + +/* + * Define the Common OAM cell format - F4 & F5 cells + * For F4 cells: + * VPI == User VPI + * VCI == (3 == Segment), (4 == End-to-End) + * + * For F5 cells: + * VPI == User VPI + * VCI == User VCI + * PT == (100 == Segment, 101 == End-to-End) + * + * OAM Cell Type & Function Type: + * + * OAM_TYPE = (0001 == Fault management) + * OAM_FUNC == (0000 == AIS, 0001 == RDI, 0100 == CC, + * 1000 == loopback) + * + * OAM_TYPE = (0010 == Performance management) + * OAM_FUNC == (0000 == Forward Monitoring(FM), + * 0001 == Backward monitoring(BR), + * 0010 == Monitoring & reporting (FM+BR)) + * + * OAM_TYPE = (1000 == Activation/Deactivation) + * OAM_FUNC == (0000 == Performance Monitoring, + * 0001 == Continuity Check) + * + * OAM_TYPE = (1111 == Sytem Management) + * OAM_FUNC == (0001 == Security - non-real-time, + * 0010 == Security - real-time) + * + */ +#define ATM_OAM_FAULT_MGMT 0x1 /* OAM Fault mgmt. code */ +#define ATM_OAM_PRFRM_MGMT 0x2 /* performance mgmt code */ +#define ATM_OAM_ACT_DEACT 0x8 /* OAM Activation/Deactivation + code */ +#define ATM_OAM_SYSTEM_MGMT 0xF /* System Management code */ + +#define ATM_OAM_AIS_FUNC 0x0 /* AIS function type */ +#define ATM_OAM_RDI_FUNC 0x1 /* RDI function type */ +#define ATM_OAM_CC_FUNC 0x4 /* OAM CC FM function code */ +#define ATM_OAM_LOOP_FUNC 0x8 /* Loopback function type */ + +#define ATM_OAM_F5_SEGMENT 0x4 /* Segment function */ +#define ATM_OAM_F5_ENDTOEND 0x5 /* End-to-End function */ +#define ATM_OAM_F4_SEGMENT 0x3 /* Segment function */ +#define ATM_OAM_F4_ENDTOEND 0x4 /* End-to-End function */ +#define ATM_OAM_F4_PTI_ZERO 0x0 /* PTI=0 for F4 OAM */ + +typedef struct atm_oam_hdr_t_ { + unsigned oam_gfc:4; /* GFC */ + unsigned oam_vpi:8; /* VPI */ + unsigned oam_vci_ms:4; /* VCI (Most Significant Bits) */ + + unsigned oam_vci_ls:12; /* VCI (Least Significant Bits) */ + unsigned oam_pt:3; /* Payload Type */ + unsigned oam_clp:1; /* Cell Loss Priority */ + u8 data[0]; +} atm_oam_hdr_t; + +typedef struct atm_oam_type_func_t_ { + u8 oam_type:4; + u8 oam_func:4; + u8 data[0]; +} atm_oam_type_func_t; + +/* +** IP Version 4 header +*/ + +/* + * version_hdr_len_words [7-4] IP Header Version + * [3-0] IP Header Length in 32-bit words + * tos Type of Service + * total_len_bytes Total IP datagram length in bytes + * (including IP header) + * identification Unique fragmentation identifier + * frag_flags_offset [15-13] Fragmentation flags + * [12-0] Fragmentation Offset + * ttl Time To Live + * protocol_id Protocol Identifier + * checksum 16-bit 1's complement IP Header checksum + * src_addr IP Source Address + * dest_addr IP Destination Address + */ +typedef struct ipv4_header { + u8 version_hdr_len_words; + u8 tos; + u16 total_len_bytes; + u16 identification; + u16 frag_flags_offset; + u8 ttl; + u8 protocol; + u16 checksum; + u32 src_addr; + u32 dest_addr; + u8 data[0]; +} ipv4_header; + +/*OPTIONS PACKET TYPE + * +-+-+-+-+-+-+-+-+ + * |C| CL| OP | + * +-+-+-+-+-+-+-+-+ + */ +typedef struct ipv4_options { + u8 copy :1 ; + u8 op_class :2 ; + u8 option :5 ; + u8 pad ; +}ipv4_options; + +#define LOOSE_SOURCE_ROUTE 131 +#define STRICT_SOURCE_ROUTE 137 +#define IPV4_NO_OPTIONS_HDR_LEN (sizeof(ipv4_header)) +#define IPV4_VERSION 4 +#define IPV4_HEADER_LENGTH_WORDS 5 +#define IPV4_VERSION_HDR_LEN_FIELD ((u8) 0x45) +#define IPV4_HEADER_LENGTH_WORDS 5 +#define IPV4_MIN_HEADER_LENGTH_BYTES 20 +#define IP_HDR_LEN sizeof(ipv4_header) +#define IPV4_VERSION_VALUE_SHIFT 4 + +#define IPV4_FRAG_OFFSET_MASK (0x1fff) +#define IPV4_FRAG_MF_MASK (0x2000) +#define IPV4_FRAG_MF_SHIFT (13) + +/* 0.0.0.0 */ +#define IP_BOOTP_SOURCE_ADDRESS 0 +/* 255.255.255.255 */ +#define IP_LIMITED_BROADCAST_ADDRESS 0xFFFFFFFF + +/* + * IPv4 header - version & length fields + */ +#define IP_VER_LEN 0x45 +#define IP_VER 0x4 +#define IP_MIN_LEN 0x5 +#define IP_VER_MASK 0xf0 +#define IP_LEN_MASK 0x0f + +/* + * IPv4 header - TOS field + */ +#define PS_IP_TOS_MASK 0xff +#define IP_PRECEDENCE_SHIFT 5 /* shift value up to precedence bits */ +#define IP_DSCP_SHIFT 2 /* shift value up to dscp bits */ + +#define IP_TOS_PRECEDENCE 0xe0 /* mask of precedence in tos byte */ +#define IP_TOS_NO_PRECEDENCE 0x1f +#define IP_TOS_LOW_DELAY 8 /* values must be shifted 1 bit */ +#define IP_TOS_HIGH_TPUT 4 /* before using */ +#define IP_TOS_HIGH_RELY 2 +#define IP_TOS_LOW_COST 1 +#define IP_TOS_NORMAL 0 +#define IP_TOS_MASK 0x1e /* mask of tos in tos byte */ +#define IP_TOS_MBZ_MASK 0x01 /* mask for MZB bit in tos byte */ +#define IP_TOS_DSCP 0xfc /* mask for dscp in tos byte */ +#define IP_TOS_NO_DSCP 0x03 + +#define IP_TOS_METRIC_TYPES 8 +#define IP_TOS_SHIFT 1 + +#define IP_TOS_PRECEDENCE_MASK (IP_TOS_PRECEDENCE | IP_TOS_MASK) + +/* + * IP TOS Precedence values (High order 3 bits) + */ +#define TOS_PREC_NET_CONTROL 0xe0 +#define TOS_PREC_INET_CONTROL 0xc0 +#define TOS_PREC_CRIT_ECP 0xa0 +#define TOS_PREC_FLASH_OVER 0x80 +#define TOS_PREC_FLASH 0x60 +#define TOS_PREC_IMMEDIATE 0x40 +#define TOS_PREC_PRIORITY 0x20 +#define TOS_PREC_ROUTINE 0x00 +#define TOS_PREC_ILLEGAL 0xff /* invalid precedence value */ + +#define TOS_PREC_NET_CONTROL_NUM 7 +#define TOS_PREC_INET_CONTROL_NUM 6 +#define TOS_PREC_CRIT_ECP_NUM 5 +#define TOS_PREC_FLASH_OVER_NUM 4 +#define TOS_PREC_FLASH_NUM 3 +#define TOS_PREC_IMMEDIATE_NUM 2 +#define TOS_PREC_PRIORITY_NUM 1 +#define TOS_PREC_ROUTINE_NUM 0 + + + +/* + * IPv4 header - flags and fragment offset fields + */ +#define IP_FRAG_OFFSET_MASK 0x1fff + + +#define IP_FRAG_MORE_MASK 0x2000 +#define IP_FRAG_DF_MASK 0x4000 +#define IP_FRAG_UNDEF_MASK 0x8000 +#define IP_FRAG_NO_DF_SET 0x0000 + +/* bit definitions for fragment flags */ +#define IP_FRAG_MORE_BIT 13 +#define IP_FRAG_DF_BIT 14 +#define IP_FRAG_UNDEF_BIT 15 + +/* + * IPv4 header - TTL field + */ +#define TTL_DEFAULT 255 +#define TTL_1 1 +#define TTL_2 2 +#define TTL_255 255 + + +/* + * IPv4 header - protocol field + * + * ICMP_PROT 1 ICMP + * IGMP_PROT 2 group management + * GGP_PROT 3 GGP + * IPINIP_PROT 4 IPv4 in IPv4 encapsulation + * TCP_PROT 6 TCP + * EGP_PROT 8 EGP + * IGRP_PROT 9 IGRP + * UDP_PROT 17 UDP + * HMP_PROT 20 HMP + * RDP_PROT 27 RDP + * IPV6_INIP_PROT 41 IPV6 in IPv4 encapsulation + * RSVP_PROT 46 RSVP + * GRE_PROT 47 GRE + * ESP_PROT 50 ESP + * AHP_PROT 51 AHP + * SDNS0_PROT 53 SNDS + * NHRP_PROT 54 NHRP + * SDNS1_PROT 55 SDNS1 + * HELLO_PROT 63 HELLO + * ND_PROT 77 ND + * EONIP_PROT 80 CLNS over IP + * VINES_PROT 83 Banyan Vines + * NEWIGRP_PROT 88 IGRP + * OSPF_PROT 89 OSPF + * FST_RSRB_PROT 90 RSRB + * FST_DLSW_PROT 91 DLSW + * NOSIP_PROT 94 KA9Q/NOS compatible IP over IP + * PIM_PROT 103 PIMv2 + * PCP_PROT 108 PCP + * PGM_PROT 113 PGM + * MAX_PROT 113 maximum protocol number in the above list, + * used in creating case registry + */ +#define ICMP_PROT 1 +#define IGMP_PROT 2 +#define GGP_PROT 3 +#define IPINIP_PROT 4 +#define TCP_PROT 6 +#define EGP_PROT 8 +#define IGRP_PROT 9 +#define UDP_PROT 17 +#define HMP_PROT 20 +#define RDP_PROT 27 +#define IPV6_INIP_PROT 41 +#define RSVP_PROT 46 +#define GRE_PROT 47 +#define ESP_PROT 50 +#define AHP_PROT 51 +#define SDNS0_PROT 53 +#define NHRP_PROT 54 +#define SDNS1_PROT 55 +#define HELLO_PROT 63 +#define ND_PROT 77 +#define EONIP_PROT 80 +#define VINES_PROT 83 +#define NEWIGRP_PROT 88 +#define OSPF_PROT 89 +#define FST_RSRB_PROT 90 +#define FST_DLSW_PROT 91 +#define NOSIP_PROT 94 +#define PIM_PROT 103 +#define PCP_PROT 108 +#define PGM_PROT 113 +#define MAX_PROT 113 + +/*Well Known Application ports */ +#define FTP_PORT 21 /* For control connection */ +/* + * TCP header + */ +typedef struct tcp_hdr_type { + u16 src_port; + u16 dest_port; + u32 seq_num; + u32 ack_num; + u8 hdr_len; + u8 flags; + u16 window_size; + u16 tcp_checksum; + u16 urgent_pointer; + u8 option_data[0]; +} tcp_hdr_type; + +#define TCP_FLAG_FIN 0x01 +#define TCP_FLAG_SYN 0x02 +#define TCP_FLAG_RST 0x04 +#define TCP_FLAG_PUSH 0x08 +#define TCP_FLAG_ACK 0x10 +#define TCP_FLAG_URG 0x20 +#define TCP_FLAG_ECE 0x40 +#define TCP_FLAG_CWR 0x80 + +/* + * TCP Option + */ +typedef struct tcp_option_s { + u8 kind; + u8 length; + u8 data[0]; +} tcp_option_t; + +#define TCP_END_OPTIONS_LIST 0 +#define TCP_OPTION_NOP 1 +#define TCP_OPTION_MSS 2 +#define TCP_OPTION_WINDOW_SCALE 3 +#define TCP_OPTION_SACK_PERMITTED 4 +#define TCP_OPTION_SACK_DATA 5 +#define TCP_OPTION_ECHO 6 +#define TCP_OPTION_ECHO_REPLY 7 +#define TCP_OPTION_TSOPT 8 +/* + 9 2 Partial Order Connection Permitted. RFC 1693 + 10 3 Partial Order Service Profile. RFC 1693 + 11 6 CC, Connection Count. RFC 1644 + 12 6 CC.NEW RFC 1644 + 13 6 CC.ECHO RFC 1644 + 14 3 TCP Alternate Checksum Request. RFC 1146 + 15 Variable. TCP Alternate Checksum Data. RFC 1146 + 16 Skeeter. + 17 Bubba. + 18 3 Trailer Checksum Option. +*/ +#define TCP_OPTION_MD5_SIGNATURE 19 +/* + 20 SCPS Capabilities. + 21 Selective Negative Acknowledgements. + 22 Record Boundaries. + 23 Corruption experienced. + 24 SNAP. + 25 + 26 TCP Compression Filter. +*/ +#define TCP_OPTION_QUICK_START 27 + +#define TCP_OPTION_NUM_MAX 27 + +#ifdef TARGET_CISCO +#define tcp_printf(format_str, params...) //printf(format_str, ## params) +#else +#define tcp_printf(format_str, params...) printf(format_str, ## params) +#endif + +typedef struct udp_hdr_type { + u16 src_port; + u16 dest_port; + u16 udp_length; + u16 udp_checksum; +} udp_hdr_type_t; + +#define TYPE_IPV6 0x86dd +#define TYPE_IPV4 0x0800 + +/* + * version_trafficclass_flowlabel [31:28] IP Header Version, + [27:20] traffic_class, + [19:0] flow_label[20] + * payload_length Length of packet in bytes excluding header size(s) + * next_header Identifies the type of header following the IPv6 header + * hop_limit Decremented by 1 by each forwarding node, packet discarded when zero + * src_addr IPv6 Source Address + * dst_addr IPv6 Destination Address + */ +typedef struct ipv6_header { + u32 version_trafficclass_flowlabel; + u16 payload_length; + u8 next_header; + u8 hop_limit; + u32 src_addr[4]; + u32 dst_addr[4]; + u8 data[0]; +} ipv6_header_t; + +#define IPV6_HDR_LEN 40 +#define IPV6_HDR_LEN_WORDS 10 +#define IPV6_FLABLE_MASK 0x000FFFFF +#define IPV6_MIN_PATH_MTU (1280) + +#define IPV6_GET_IP_VER(ih) ((clib_net_to_host_u32((ih) \ + ->version_trafficclass_flowlabel) >> 28) & 0xf) +#define IPV6_GET_TOS(ih) ((clib_net_to_host_u32((ih) \ + ->version_trafficclass_flowlabel) >> 20) & 0xff) +#define IPV6_GET_FLOW_LABEL(ih) ((clib_net_to_host_u32((ih) \ + ->version_trafficclass_flowlabel)) & 0xfffff) + +#define IPV6_VERSION_VALUE (6) +#define IPV6_VERSION_VALUE_SHIFT (28) +#define IPV6_TRAFFIC_CLASS_VALUE_SHIFT (20) +#define IPV6_TRAFFIC_CLASS_VALUE_MASK (0xff) + +#define IPV6_PROTO_HOPOPTS 0 +#define IPV6_PROTO_TCP 6 +#define IPV6_PROTO_UDP 17 +#define IPV6_PROTO_IPV6 41 +#define IPV6_PROTO_ROUTING 43 +#define IPV6_PROTO_FRAGMENT 44 +#define IPV6_PROTO_DESTOPTS 60 +#define IPV6_PROTO_ESP 50 +#define IPV6_PROTO_AH 51 +#define IPV6_PROTO_ICMPV6 58 +#define IPV6_PROTO_NONE 59 + +/* standard v6 extension header are 2 tytes + * one byte next header + * one byte header length + */ + +typedef struct ipv6_frag_header { + u8 next_header; + u8 reserved; + u16 frag_offset_res_m; + u32 identification; +} ipv6_frag_header_t; + +#define IPV6_FRAG_HDR_LEN (sizeof(ipv6_frag_header_t)) + +#define IPV6_FRAG_OFFSET_MASK (0xFFF8) +#define IPV6_FRAG_OFFSET_SHIFT (3) +#define IPV6_FRAG_MORE_FRAG_MASK (0x0001) + +#define IPV6_TOS_SHIFT 20 +#define IPV6_TOS_SHIFT_HLF_WD 4 +#define IPV6_NEXT_HDR_SHIFT 8 + +typedef struct ipv6_routing_header { + u8 next_header; + u8 hdr_ext_len; + u8 routing_type; + u8 segments_left; + u8 data[0]; +} ipv6_routing_header_t; +#define IPV6_ROUTING_HDR_LEN (sizeof(ipv6_routing_header_t)) + +typedef struct ipv6_hop_header { + u8 next_header; + u8 hdr_ext_len; + u8 options[0]; +} ipv6_hop_header_t; +#define IPV6_HOP_LEN (sizeof(ipv6_hop_header_t)) + +typedef struct ipv6_dest_opt_header { + u8 next_header; + u8 hdr_ext_len; + u8 options[0]; +} ipv6_dest_opt_header_t; +#define IPV6_DESTOPT_LEN (sizeof(ipv6_dest_opt_header_t)) + + +/* Definition of ICMP header */ +typedef struct icmp_v4_s { + u8 type; + u8 code; + u16 checksum; + u16 identifier; + u16 sequence; +} icmp_v4_t; + +#define ICMPV4_HDR_SIZE (sizeof(icmp_v4_t)) +#define ICMPV4_ECHOREPLY 0 /* Type: echo reply */ +#define ICMPV4_ECHO 8 /* Type: echo request */ + +#define ICMPV4_UNREACHABLE 3 /* Type: destination unreachable */ +#define ICMPV4_UNRNET 0 /* Code: Net unreachable */ +#define ICMPV4_UNRHOST 1 /* Code: host unreachable */ +#define ICMPV4_UNRPROT 2 /* Code: protocol unreachable */ +#define ICMPV4_UNRPORT 3 /* Code: port unreachable */ +#define ICMPV4_UNRFRAG 4 /* Code: frag req DF set */ +#define ICMPV4_UNRADMIN 13 /* Code: administratively prohib. */ +#define ICMPV4_SOURCEROUTE_FAILED 5 /* Code: administratively prohib. */ + +#define ICMPV4_SRC_ROUTE_FAIL 5 /* Code: Source Route Failed */ +#define ICMPV4_NO_ROUTE_DESTN_8 8 /* Code: No Route to Destn */ +#define ICMPV4_NO_ROUTE_DESTN_11 11 /* Code: No Route to Destn */ +#define ICMPV4_NO_ROUTE_DESTN_12 12 /* Code: No Route to Destn */ + +#define ICMPV4_ADMIN_PROH_9 9 /* Code: Administratively Prohibited */ +#define ICMPV4_ADMIN_PROH_10 10 /* Code: Administratively Prohibited */ +#define ICMPV4_PREC_CUTOFF 15 /* Code: Precedence Cutoff */ + + +#define ICMPV4_TIMEEXCEEDED 11 /* Type: time exceeded */ +#define ICMPV4_TIMTTL 0 /* Code: ttl in transit code */ + +#define ICMPV4_PARAMETER_PROBLEM 12 /* Type: Parameter Problem */ +#define ICMPV4_PARAM_ERROR 0 /* Code: Pointer to Error */ +#define ICMPV4_MISSING_OPTION_CODE 1 /* Code: Mission option */ +#define ICMPV4_PARAM_BAD_LEN 2 /* Code: Bad Length */ + +#define ICMPV4_CONVERSION_ERROR 31 +#define ICMPV4_SOURCE_QUENCH 4 +#define ICMPV4_REDIRECT 5 +#define ICMPV4_TIMESTAMP 13 +#define ICMPV4_TIMESTAMP_REPLY 14 +#define ICMPV4_INFO_REQUEST 15 +#define ICMPV4_INFO_REPLY 16 +#define ICMPV4_ADDR_MASK_REQUEST 17 +#define ICMPV4_ADDR_MASK_REPLY 18 + +typedef struct icmp_v6_s { + + u8 type; + u8 code; + u16 checksum; + + u32 data[0]; +} icmp_v6_t; + +typedef struct pseudo_v6_header { + u32 src_addr[4]; + u32 dst_addr[4]; + u16 payload_length; + u16 next_header; +} pseudo_v6_header_t; + + +#define ICMPV6_ECHO 128 +#define ICMPV6_ECHO_REPLY 129 +#define ICMPV6_PKT_TOO_BIG 2 +#define ICMPV6_TIMEEXCEEDED 3 +#define ICMPV6_TIMTTL 0 +#define ICMPV6_PARAMETER_PROBLEM 4 +#define ICMPV6_UNREACHABLE 1 +#define ICMPV6_NEIGHBOR_SOLICITAION 135 +#define ICMPV6_NEIGHBOR_ADVT 136 +/* ICMP V6 generated packet size */ +#define ICMPV6_ERR_SIZE 48 +#define ICMPV6_HDR_SIZE (sizeof(icmp_v6_t) +sizeof(u32)) + +/* Code for Type 1 */ +#define ICMPV6_UNRDESTN 0 /* Code: No route to Desnt */ +#define ICMPV6_ADM_PROH 1 /* Code: Adminitrative Prohibited */ +#define ICMPV6_SRC_ADD_SCOPE 2 /* Code: Source Address beyond scope */ +#define ICMPV6_UNRHOST 3 /* Code: Host Unreachable */ +#define ICMPV6_UNRPORT 4 /* Code: Port UnReachable */ + +#define ICMPV6_UNRPROT 1 /* type 4 - Code: No route to Desnt */ + +#define ICMPV6_PTB_CODE 0 /* Code: For PTB */ +#define ICMPV6_PARAM_CODE 0 /* Code: For Parameter Problem */ +#define ICMPV6_UNREC_HDR 1 /* Code: For Parameter Problem */ +#define ICMPV6_SRC_ADD_FAIL 5 /* Code: For Source address failed */ +#define ICMP_ECHO_REPLY_CODE 0 +#define DEFAULT_TTL_HOPLIMIT_VAL 64 + +typedef struct pptp_hdr_type { + + u16 flags_ver; + u16 proto_type; /* PPP = 0x880B */ + u16 payload_len; + u16 call_id; + u32 seq_no; + u32 ack_no; + +} pptp_hdr_type_t; + +/* + * NAME + * + * tcp_findoption + * + * SYNOPSIS + * u8* tcp_findoption (tcp_hdr_t *tcp, uchar option) + * + * PARAMETERS + * tcp - pointer to TCP header + * option - TCP option + * + * RETURNS + * This function returns a pointer to the option found, + * otherwise returns null. + * + * + * DESCRIPTION + * This function searches the option and returns a pointer to the + * matched option field containing option kind/length/data sub-fields. + * + */ +static inline u8* tcp_findoption (tcp_hdr_type *tcp, u8 option) +{ + u8*data; + u8 len, optlen; + + data = tcp->option_data; + len = ((tcp->hdr_len>>4) << 2) - sizeof(tcp_hdr_type); + +#define MAXTCPOPTIONBYTES 40 +#define MINTCPOPTIONLENGTH 2 + + while (len) { + if (PREDICT_TRUE(option == data[0])) { + return (data); + } else { + switch (data[0]) { + case TCP_END_OPTIONS_LIST: + return (NULL); + case TCP_OPTION_NOP: + len -= 1; + data += 1; + break; + default: + /* Sanity check the length. */ + optlen = data[1]; + if ((optlen < MINTCPOPTIONLENGTH) || + (optlen > MAXTCPOPTIONBYTES) || + (optlen > len)) { + return (NULL); + } + len -= optlen; + data += optlen; + break; + } + } + } + + return (NULL); +} + + +static inline u32 crc_calc (ipv4_header *ipv4) +{ + u16 *ipv4_word_ptr = (u16 *) ipv4; + u32 crc32; + /* + * Add all fields except the checksum field + */ + crc32 = (u32)clib_net_to_host_u16(*ipv4_word_ptr) + + (u32)clib_net_to_host_u16(*(ipv4_word_ptr + 1)) + + (u32)clib_net_to_host_u16(*(ipv4_word_ptr + 2)) + + (u32)clib_net_to_host_u16(*(ipv4_word_ptr + 3)) + + (u32)clib_net_to_host_u16(*(ipv4_word_ptr + 4)) + + (u32)clib_net_to_host_u16(*(ipv4_word_ptr + 6)) + + (u32)clib_net_to_host_u16(*(ipv4_word_ptr + 7)) + + (u32)clib_net_to_host_u16(*(ipv4_word_ptr + 8)) + + (u32)clib_net_to_host_u16(*(ipv4_word_ptr + 9)); + + /* Add in the carry of the original sum */ + crc32 = (crc32 & 0xFFFF) + (crc32 >> 16); + /* Add in the carry of the final sum */ + crc32 = (crc32 & 0xFFFF) + (crc32 >> 16); + + return crc32; +} + +#endif /* __TCP_HEADER_DEFINITIONS_H__ */ diff --git a/plugins/vcgn-plugin/vcgn/vcgn_classify.c b/plugins/vcgn-plugin/vcgn/vcgn_classify.c new file mode 100644 index 00000000..18cc4ba0 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/vcgn_classify.c @@ -0,0 +1,1508 @@ +/* + * Copyright (c) 2015 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <vnet/plugin/plugin.h> +#include <vlib/vlib.h> +#include <vnet/vnet.h> +#include <vnet/pg/pg.h> +#include <vppinfra/error.h> +#include <vppinfra/pool.h> + +#include <vnet/ip/ip.h> +#include <vnet/ethernet/ethernet.h> + +#include "cnat_db.h" +#include "cnat_global.h" +#include "cnat_cli.h" +#include "cnat_config.h" +#include "cnat_logging.h" +#include "cnat_config_api.h" +#include "cnat_show_api.h" +#include "cnat_show_response.h" +#include "cnat_ipv4_udp.h" +#include "cnat_common_api.h" + +#include <arpa/inet.h> + +typedef struct { + u32 cached_next_index; + + /* inside, outside interface handles */ + u32 * inside_sw_if_index_table; + u32 * outside_sw_if_index_table; + + /* convenience variables */ + vlib_main_t * vlib_main; + vnet_main_t * vnet_main; + u8 cnat_db_initalized; +} vcgn_classify_main_t; + +typedef struct { + /* $$$$ fill in with per-pkt trace data */ + u32 next_index; + u32 sw_if_index; + u32 orig_dst_address; + u16 orig_dst_port; +} vcgn_classify_trace_t; + +#define FIND_MY_VRF_USING_I_VRF_ID \ + my_vrfmap_found = 0; \ + pool_foreach (my_vrfmap, cnat_map_by_vrf, ({ \ + if (my_vrfmap->i_vrf_id == i_vrf_id) { \ + my_vrfmap_found = 1; \ + my_vrfmap_temp = my_vrfmap; \ + break; \ + } \ + })); + + +/* packet trace format function */ +static u8 * format_swap_trace (u8 * s, va_list * args) +{ + CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); + CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); + vcgn_classify_trace_t * t = va_arg (*args, vcgn_classify_trace_t *); + + s = format (s, "VCGN_CLASSIFY: dst %U dst_port %d sw_if_index %d next %d", + format_ip4_address, (ip4_header_t *) &t->orig_dst_address, + clib_net_to_host_u16(t->orig_dst_port), + t->sw_if_index, t->next_index); + return s; +} + +vcgn_classify_main_t vcgn_classify_main; + +vlib_node_registration_t vcgn_classify_node; + +#define foreach_vcgn_classify_error \ +_(PACKETS_RECEIVED, "total packets received") \ +_(V4_PACKETS_PROCESSED, "ipv4 packets processed for vCGN") \ +_(V4_PACKETS_PUNTED, "ipv4 packets punted") \ +_(V6_PACKETS_PUNTED, "ipv6 packets punted") \ +_(MPLS_PACKETS_PUNTED, "mpls unicast packets punted") \ +_(ETH_PACKETS_PUNTED, "ethernet packets punted") + + +typedef enum { +#define _(sym,str) VCGN_CLASSIFY_ERROR_##sym, + foreach_vcgn_classify_error +#undef _ + VCGN_CLASSIFY_N_ERROR, +} vcgn_classify_error_t; + +static char * vcgn_classify_error_strings[] = { +#define _(sym,string) string, + foreach_vcgn_classify_error +#undef _ +}; + +/* + * To drop a pkt and increment one of the previous counters: + * + * set b0->error = error_node->errors[VCGN_CLASSIFY_ERROR_EXAMPLE]; + * set next0 to a disposition index bound to "error-drop". + * + * To manually increment the specific counter VCGN_CLASSIFY_ERROR_EXAMPLE: + * + * vlib_node_t *n = vlib_get_node (vm, vcgn_classify.index); + * u32 node_counter_base_index = n->error_heap_index; + * vlib_error_main_t * em = &vm->error_main; + * em->counters[node_counter_base_index + VCGN_CLASSIFY_ERROR_EXAMPLE] += 1; + * + */ + +typedef enum { + VCGN_CLASSIFY_NEXT_IP4_INPUT, + VCGN_CLASSIFY_NEXT_IP6_INPUT, + VCGN_CLASSIFY_NEXT_MPLS_INPUT, + VCGN_CLASSIFY_NEXT_ETHERNET_INPUT, + VCGN_CLASSIFY_NEXT_UDP_INSIDE, + VCGN_CLASSIFY_NEXT_UDP_OUTSIDE, + VCGN_CLASSIFY_NEXT_TCP_INSIDE, + VCGN_CLASSIFY_NEXT_TCP_OUTSIDE, + VCGN_CLASSIFY_NEXT_ICMP_Q_INSIDE, + VCGN_CLASSIFY_NEXT_ICMP_Q_OUTSIDE, + VCGN_CLASSIFY_NEXT_ICMP_E_INSIDE, + VCGN_CLASSIFY_NEXT_ICMP_E_OUTSIDE, + VCGN_CLASSIFY_N_NEXT, +} vcgn_classify_next_t; + +static uword +vcgn_classify_node_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + u32 n_left_from, * from, * to_next; + vcgn_classify_next_t next_index; + vcgn_classify_main_t * vcm = &vcgn_classify_main; + vlib_node_t *n = vlib_get_node (vm, vcgn_classify_node.index); + u32 node_counter_base_index = n->error_heap_index; + vlib_error_main_t * em = &vm->error_main; + u16 *l3_type; + int counter; + + from = vlib_frame_vector_args (frame); + n_left_from = frame->n_vectors; + next_index = node->cached_next_index; + + while (n_left_from > 0) + { + u32 n_left_to_next; + + vlib_get_next_frame (vm, node, next_index, + to_next, n_left_to_next); + + #if 0 + while (n_left_from >= 4 && n_left_to_next >= 2) + { + u32 bi0, bi1; + vlib_buffer_t * b0, * b1; + u32 next0, next1; + u32 sw_if_index0, sw_if_index1; + + /* Prefetch next iteration. */ + { + vlib_buffer_t * p2, * p3; + + p2 = vlib_get_buffer (vm, from[2]); + p3 = vlib_get_buffer (vm, from[3]); + + vlib_prefetch_buffer_header (p2, LOAD); + vlib_prefetch_buffer_header (p3, LOAD); + + CLIB_PREFETCH (p2->data, CLIB_CACHE_LINE_BYTES, STORE); + CLIB_PREFETCH (p3->data, CLIB_CACHE_LINE_BYTES, STORE); + } + + /* speculatively enqueue b0 and b1 to the current next frame */ + to_next[0] = bi0 = from[0]; + to_next[1] = bi1 = from[1]; + from += 2; + to_next += 2; + n_left_from -= 2; + n_left_to_next -= 2; + + b0 = vlib_get_buffer (vm, bi0); + b1 = vlib_get_buffer (vm, bi1); + + sw_if_index0 = vnet_buffer(b0)->sw_if_index[VLIB_RX]; + next0 = vcm->cached_next_index; + sw_if_index1 = vnet_buffer(b1)->sw_if_index[VLIB_RX]; + next1 = vcm->cached_next_index; + + /* $$$$ your message in this space. Process 2 x pkts */ + em->counters[node_counter_base_index + VCGN_CLASSIFY_ERROR_PACKETS_RECEIVED] += 2; + + if (PREDICT_FALSE((node->flags & VLIB_NODE_FLAG_TRACE))) + { + if (b0->flags & VLIB_BUFFER_IS_TRACED) + { + vcgn_classify_trace_t *t = + vlib_add_trace (vm, node, b0, sizeof (*t)); + t->sw_if_index = sw_if_index0; + t->next_index = next0; + } + if (b1->flags & VLIB_BUFFER_IS_TRACED) + { + vcgn_classify_trace_t *t = + vlib_add_trace (vm, node, b1, sizeof (*t)); + t->sw_if_index = sw_if_index1; + t->next_index = next1; + } + } + + /* verify speculative enqueues, maybe switch current next frame */ + vlib_validate_buffer_enqueue_x2 (vm, node, next_index, + to_next, n_left_to_next, + bi0, bi1, next0, next1); + } + #endif /* if 0 */ + + while (n_left_from > 0 && n_left_to_next > 0) + { + u32 bi0; + vlib_buffer_t * b0; + u32 next0; + u32 sw_if_index0; + ip4_header_t * h0; + //ipv4_header *h0; + ethernet_header_t *eth0; + icmp_v4_t *icmp; + u8 icmp_type; + u8 ipv4_hdr_len; + + /* speculatively enqueue b0 to the current next frame */ + bi0 = from[0]; + to_next[0] = bi0; + from += 1; + to_next += 1; + n_left_from -= 1; + n_left_to_next -= 1; + + b0 = vlib_get_buffer (vm, bi0); + + eth0 = (ethernet_header_t *) vlib_buffer_get_current(b0); + u16 *etype = ð0->type; + + /* vlan tag 0x8100 */ + if (*etype == clib_host_to_net_u16(ETHERNET_TYPE_VLAN)) { + l3_type = (etype + 1); /* Skip 2 bytes of vlan id */ + vlib_buffer_advance(b0, 18); + } else { + l3_type = etype; + vlib_buffer_advance(b0, 14); + } + /* Handling v4 pkts 0x800 */ + if (*l3_type == clib_host_to_net_u16(ETHERNET_TYPE_IP4)) { + + h0 = vlib_buffer_get_current (b0); + + u8 protocol_type = h0->protocol; + + sw_if_index0 = vnet_buffer(b0)->sw_if_index[VLIB_RX]; + next0 = VCGN_CLASSIFY_NEXT_IP4_INPUT; + counter = VCGN_CLASSIFY_ERROR_V4_PACKETS_PROCESSED; + + if (protocol_type == 0x11) { /* UDP# 17 */ + next0 = (sw_if_index0 < vec_len(vcm->inside_sw_if_index_table) && + vcm->inside_sw_if_index_table[sw_if_index0] != EMPTY) ? + VCGN_CLASSIFY_NEXT_UDP_INSIDE : next0; + + next0 = (sw_if_index0 < vec_len(vcm->outside_sw_if_index_table) && + vcm->outside_sw_if_index_table[sw_if_index0] != EMPTY) ? + VCGN_CLASSIFY_NEXT_UDP_OUTSIDE : next0; + + } else if (protocol_type == 0x06) { /* TCP# 6 */ + next0 = (sw_if_index0 < vec_len(vcm->inside_sw_if_index_table) && + vcm->inside_sw_if_index_table[sw_if_index0] != EMPTY) ? + VCGN_CLASSIFY_NEXT_TCP_INSIDE : next0; + + next0 = (sw_if_index0 < vec_len(vcm->outside_sw_if_index_table) && + vcm->outside_sw_if_index_table[sw_if_index0] != EMPTY) ? + VCGN_CLASSIFY_NEXT_TCP_OUTSIDE : next0; + + } else if (protocol_type == 0x01) { /* ICMP # 1 */ + + ipv4_hdr_len = (h0->ip_version_and_header_length & 0xf) << 2; + icmp = (icmp_v4_t *)((u8*)h0 + ipv4_hdr_len); + icmp_type = icmp->type; + + if ((icmp_type == ICMPV4_ECHO) || + (icmp_type == ICMPV4_ECHOREPLY)) { + next0 = (sw_if_index0 < vec_len(vcm->inside_sw_if_index_table) && + vcm->inside_sw_if_index_table[sw_if_index0] != EMPTY) ? + VCGN_CLASSIFY_NEXT_ICMP_Q_INSIDE : next0; + + next0 = (sw_if_index0 < vec_len(vcm->outside_sw_if_index_table) && + vcm->outside_sw_if_index_table[sw_if_index0] != EMPTY) ? + VCGN_CLASSIFY_NEXT_ICMP_Q_OUTSIDE : next0; + + } else { + next0 = (sw_if_index0 < vec_len(vcm->inside_sw_if_index_table) && + vcm->inside_sw_if_index_table[sw_if_index0] != EMPTY) ? + VCGN_CLASSIFY_NEXT_ICMP_E_INSIDE : next0; + + next0 = (sw_if_index0 < vec_len(vcm->outside_sw_if_index_table) && + vcm->outside_sw_if_index_table[sw_if_index0] != EMPTY) ? + VCGN_CLASSIFY_NEXT_ICMP_E_OUTSIDE : next0; + } + } else { + /* cannot do NATting with this L4 protocol */ + counter = VCGN_CLASSIFY_ERROR_V4_PACKETS_PUNTED; + } + + if (PREDICT_FALSE((node->flags & VLIB_NODE_FLAG_TRACE) + && (b0->flags & VLIB_BUFFER_IS_TRACED))) { + udp_header_t * u0 = (udp_header_t *)(h0+1); + vcgn_classify_trace_t *t = + vlib_add_trace (vm, node, b0, sizeof (*t)); + t->sw_if_index = sw_if_index0; + t->next_index = next0; + t->orig_dst_address = h0->dst_address.as_u32; + t->orig_dst_port = u0->dst_port; + } + + } else if (*l3_type == clib_host_to_net_u16(ETHERNET_TYPE_IP6)) { + + /* IPv6 0x86DD */ + next0 = VCGN_CLASSIFY_NEXT_IP6_INPUT; + counter = VCGN_CLASSIFY_ERROR_V6_PACKETS_PUNTED; + + } else if (*l3_type == + clib_host_to_net_u16(ETHERNET_TYPE_MPLS_UNICAST)) { + + /* MPLS unicast 0x8847 */ + next0 = VCGN_CLASSIFY_NEXT_MPLS_INPUT; + counter = VCGN_CLASSIFY_ERROR_MPLS_PACKETS_PUNTED; + } else { /* Remaining all should be pushed to "ethernet-input" */ + + next0 = VCGN_CLASSIFY_NEXT_ETHERNET_INPUT; + counter = VCGN_CLASSIFY_ERROR_ETH_PACKETS_PUNTED; + } + + em->counters[node_counter_base_index + counter] += 1; + em->counters[node_counter_base_index + + VCGN_CLASSIFY_ERROR_PACKETS_RECEIVED] += 1; + + /* verify speculative enqueue, maybe switch current next frame */ + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, + to_next, n_left_to_next, + bi0, next0); + } + + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + return frame->n_vectors; +} + +VLIB_REGISTER_NODE (vcgn_classify_node) = { + .function = vcgn_classify_node_fn, + .name = "vcgn-classify", + .vector_size = sizeof (u32), + .format_trace = format_swap_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + + .n_errors = ARRAY_LEN(vcgn_classify_error_strings), + .error_strings = vcgn_classify_error_strings, + + .n_next_nodes = VCGN_CLASSIFY_N_NEXT, + + /* edit / add dispositions here */ + .next_nodes = { + [VCGN_CLASSIFY_NEXT_IP4_INPUT] = "ip4-input", + [VCGN_CLASSIFY_NEXT_IP6_INPUT] = "ip6-input", + [VCGN_CLASSIFY_NEXT_MPLS_INPUT] = "mpls-gre-input", + [VCGN_CLASSIFY_NEXT_ETHERNET_INPUT] = "ethernet-input", + [VCGN_CLASSIFY_NEXT_UDP_INSIDE] = "vcgn-v4-udp-i2o", + [VCGN_CLASSIFY_NEXT_UDP_OUTSIDE] = "vcgn-v4-udp-o2i", + [VCGN_CLASSIFY_NEXT_TCP_INSIDE] = "vcgn-v4-tcp-i2o", + [VCGN_CLASSIFY_NEXT_TCP_OUTSIDE] = "vcgn-v4-tcp-o2i", + [VCGN_CLASSIFY_NEXT_ICMP_Q_INSIDE] = "vcgn-v4-icmp-q-i2o", + [VCGN_CLASSIFY_NEXT_ICMP_Q_OUTSIDE] = "vcgn-v4-icmp-q-o2i", + [VCGN_CLASSIFY_NEXT_ICMP_E_INSIDE] = "vcgn-v4-icmp-e-i2o", + [VCGN_CLASSIFY_NEXT_ICMP_E_OUTSIDE] = "vcgn-v4-icmp-e-o2i" + }, +}; + + +/* A test function to init the vrf map */ + +clib_error_t *vcgn_classify_init (vlib_main_t *vm) +{ + vcgn_classify_main_t * mp = &vcgn_classify_main; + + mp->vlib_main = vm; + mp->vnet_main = vnet_get_main(); + u32 inside_sw_if_index = 1; + u32 outside_sw_if_index = 0; + + vec_validate_init_empty (mp->inside_sw_if_index_table, + inside_sw_if_index + 1, EMPTY); + vec_validate_init_empty (mp->outside_sw_if_index_table, + outside_sw_if_index + 1, EMPTY); + + /* + * inside_sw_if_index cell of the table stores outside_sw_if_index + * and vice versa. This is ensurs pair of indices being remembered + * using one mem-location. + */ + mp->inside_sw_if_index_table[inside_sw_if_index] = outside_sw_if_index; + mp->outside_sw_if_index_table[outside_sw_if_index] = inside_sw_if_index; + +#if DPDK==1 + dpdk_set_next_node (DPDK_RX_NEXT_IP4_INPUT, "vcgn-classify"); +#endif + + { + pg_node_t * pn; + pn = pg_get_node (vcgn_classify_node.index); + pn->unformat_edit = unformat_pg_ip4_header; + } + return 0; +} + +VLIB_INIT_FUNCTION (vcgn_classify_init); + +/* Show command handlers */ +static clib_error_t * +show_vcgn_stats_command_fn (vlib_main_t * vm, + unformat_input_t * input, + vlib_cli_command_t * cmd) +{ + if (cnat_db_init_done) { + cnat_nat44_handle_show_stats(vm); + } else { + vlib_cli_output(vm, "vCGN is not configured !!\n"); + } + return 0; +} + + +static clib_error_t * +show_vcgn_config_command_fn (vlib_main_t * vm, + unformat_input_t * input, + vlib_cli_command_t * cmd) +{ + cnat_nat44_handle_show_config(vm); + return 0; +} + +static clib_error_t * +show_vcgn_inside_translation_command_fn (vlib_main_t * vm, + unformat_input_t * input, + vlib_cli_command_t * cmd) +{ + vnet_main_t * vnm = vnet_get_main(); + vcgn_classify_main_t * vcm = &vcgn_classify_main; + spp_api_cnat_v4_show_inside_entry_req_t inside_req; + u8 *proto; + ip4_address_t inside_addr; + u32 start_port = 1; + u32 end_port = 65535; + u32 inside_sw_if_index = EMPTY; + + inside_req.start_port = start_port; + inside_req.end_port = end_port; + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) { + if (unformat(input, "protocol %s", &proto)) { + if (!strncmp((char *) proto, "udp", 3)) { + inside_req.protocol = 1; + } else if (!strncmp((char *) proto, "tcp", 3)) { + inside_req.protocol = 2; + } else { + inside_req.protocol = 3; + } + } else if (unformat (input, "interface %U", + unformat_vnet_sw_interface, vnm, &inside_sw_if_index)) { + if (inside_sw_if_index > vec_len(vcm->inside_sw_if_index_table) || + vcm->inside_sw_if_index_table[inside_sw_if_index] == EMPTY) { + return clib_error_return (0, "Could not find the inside interface"); + } + } else if (unformat (input, "inside-addr %U", + unformat_ip4_address, &inside_addr)) { + inside_req.ipv4_addr = clib_net_to_host_u32(inside_addr.as_u32); + } else if (unformat(input, "start-port %u", &start_port)) { + inside_req.start_port = start_port; + } else if (unformat(input, "end-port %u", &end_port)) { + inside_req.end_port = end_port; + } else { break;} + } + inside_req.vrf_id = inside_sw_if_index; + inside_req.flags |= CNAT_TRANSLATION_ENTRY_DYNAMIC; /* as of now only dynamic */ + inside_req.all_entries = 0; /* we can see it later */ +#if DEBUG + vlib_cli_output(vm, "proto %d, inside-addr 0x%x, start_port %u, " + "end_port %u, vrf 0x%x\n", + inside_req.protocol, + inside_req.ipv4_addr, + inside_req.start_port, + inside_req.end_port, + inside_sw_if_index); +#endif + if (cnat_db_init_done) { + cnat_v4_show_inside_entry_req_t_handler(&inside_req, vm); + } else { + vlib_cli_output(vm, "vCGN is not configured !!\n"); + } + return 0; +} + + +static clib_error_t * +show_vcgn_outside_translation_command_fn (vlib_main_t * vm, + unformat_input_t * input, + vlib_cli_command_t * cmd) +{ + void cnat_v4_show_outside_entry_req_t_handler + (spp_api_cnat_v4_show_outside_entry_req_t *mp, vlib_main_t *vm); + vnet_main_t * vnm = vnet_get_main(); + vcgn_classify_main_t * vcm = &vcgn_classify_main; + spp_api_cnat_v4_show_outside_entry_req_t outside_req; + u8 *proto; + ip4_address_t outside_addr; + u32 start_port = 1; + u32 end_port = 65535; + u32 outside_sw_if_index = EMPTY; + + + outside_req.start_port = start_port; + outside_req.end_port = end_port; + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) { + if (unformat(input, "protocol %s", &proto)) { + if (!strncmp((char *) proto, "udp", 3)) { + outside_req.protocol = 1; + } else if (!strncmp((char *) proto, "tcp", 3)) { + outside_req.protocol = 2; + } else { + outside_req.protocol = 3; + } + } else if (unformat (input, "interface %U", + unformat_vnet_sw_interface, vnm, &outside_sw_if_index)) { + if (outside_sw_if_index > vec_len(vcm->outside_sw_if_index_table) || + vcm->outside_sw_if_index_table[outside_sw_if_index] == EMPTY) { + return clib_error_return (0, "Could not find the outside interface"); + } + } else if (unformat (input, "outside-addr %U", + unformat_ip4_address, &outside_addr)) { + outside_req.ipv4_addr = clib_net_to_host_u32(outside_addr.as_u32); + } else if (unformat(input, "start-port %u", &start_port)) { + outside_req.start_port = start_port; + } else if (unformat(input, "end-port %u", &end_port)) { + outside_req.end_port = end_port; + } else { break;} + } + outside_req.vrf_id = outside_sw_if_index; + outside_req.flags |= CNAT_TRANSLATION_ENTRY_DYNAMIC; /* as of now only dynamic */ +#if DEBUG + vlib_cli_output(vm, "proto %d, outside-addr 0x%x, start_port %u, " + "end_port %u, vrf 0x%x\n", + outside_req.protocol, + outside_req.ipv4_addr, + outside_req.start_port, + outside_req.end_port, + outside_sw_if_index); +#endif + if (cnat_db_init_done) { + cnat_v4_show_outside_entry_req_t_handler(&outside_req, vm); + } else { + vlib_cli_output(vm, "vCGN is not configured !!\n"); + } + return 0; +} + + +/* Config command handlers */ +static clib_error_t * +set_vcgn_inside_command_fn (vlib_main_t * vm, + unformat_input_t * input, + vlib_cli_command_t * cmd) +{ + vnet_main_t * vnm = vnet_get_main(); + vcgn_classify_main_t * vcm = &vcgn_classify_main; + u32 inside_sw_if_index = 1; + u32 outside_sw_if_index = ~0; + void cnat_db_v2_init (void ); + + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) { + if (unformat(input, "%U", + unformat_vnet_sw_interface, vnm, &inside_sw_if_index)) + ; + else if (unformat(input, "outside %U", + unformat_vnet_sw_interface, vnm, &outside_sw_if_index)) + ; + else break; + } + if (inside_sw_if_index == ~0 || + outside_sw_if_index == ~0) + return clib_error_return (0, "unknown input `%U'", + format_unformat_error, input); + + if (inside_sw_if_index == outside_sw_if_index) + return clib_error_return (0, "inside and outside interfaces can't be the same..."); + + /* + * Initialize in/out sw_if_index table. Could use + * non-indexed table to reduce memory. However, this + * is consulted in vcgn_classify for every packet. + * Therefore, table is indexed by sw_if_index. + */ + vec_validate_init_empty (vcm->inside_sw_if_index_table, + inside_sw_if_index + 1, EMPTY); + vec_validate_init_empty (vcm->outside_sw_if_index_table, + outside_sw_if_index + 1, EMPTY); + + /* + * inside_sw_if_index cell of the table stores outside_sw_if_index + * and vice versa. This is ensurs pair of indices being remembered + * using one mem-location. + */ + vcm->inside_sw_if_index_table[inside_sw_if_index] = outside_sw_if_index; + vcm->outside_sw_if_index_table[outside_sw_if_index] = inside_sw_if_index; + + if (! vcm->cnat_db_initalized) { + int i; + cnat_db_v2_init(); + + for (i = 0; i < CNAT_MAX_VRFMAP_ENTRIES; i++) { + vrf_map_array[i] = VRF_MAP_ENTRY_EMPTY; + } + /* Turn on the db scanner process */ + cnat_scanner_db_process_turn_on(vm); + vcm->cnat_db_initalized = 1; + } + return 0; +} + +static clib_error_t * +set_vcgn_map_command_fn (vlib_main_t * vm, + unformat_input_t * input, + vlib_cli_command_t * cmd) +{ + vnet_main_t * vnm = vnet_get_main(); + vcgn_classify_main_t * vcm = &vcgn_classify_main; + ip4_address_t lo, hi; + spp_api_cnat_v4_add_vrf_map_t map; + u32 inside_sw_if_index = EMPTY; + u32 outside_sw_if_index; + + vnet_hw_interface_t *inside_hw_if_index = NULL; + vnet_hw_interface_t *outside_hw_if_index = NULL; + + if (! unformat(input, "inside %U", + unformat_vnet_sw_interface, vnm, &inside_sw_if_index)) + return clib_error_return (0, "unknown input `%U'", + format_unformat_error, input); + + if (!unformat (input, "%U", unformat_ip4_address, &lo)) + return clib_error_return (0, "unknown input `%U'", + format_unformat_error, input); + + if (unformat (input, "- %U", unformat_ip4_address, &hi)) + ; + + /* $$$$ remember to set i_vrf, i_vrf_id as needed */ + + /* Fill the structure spp_api_cnat_v4_add_vrf_map_t & let this API handle it */ + /* i_vrf_id & o_vrf_id are 32-bit & i_vrf, o_vrf are 16 bit */ + + if (inside_sw_if_index > vec_len(vcm->inside_sw_if_index_table) || + vcm->inside_sw_if_index_table[inside_sw_if_index] == EMPTY) { + return clib_error_return (0, "Could not find the inside interface"); + } + outside_sw_if_index = vcm->inside_sw_if_index_table[inside_sw_if_index]; + + map.i_vrf_id = inside_sw_if_index; + map.o_vrf_id = outside_sw_if_index; + map.i_vrf = inside_sw_if_index; + map.o_vrf = outside_sw_if_index; + + map.start_addr[0] = clib_net_to_host_u32(lo.as_u32); + map.end_addr[0] = clib_net_to_host_u32(hi.as_u32); + + cnat_nat44_add_vrf_map_t_handler(&map, vm); + +#if 1 + inside_hw_if_index = vnet_get_sup_hw_interface(vcm->vnet_main, inside_sw_if_index); + if (inside_hw_if_index) { + vnet_hw_interface_rx_redirect_to_node(vcm->vnet_main, + inside_hw_if_index->hw_if_index, vcgn_classify_node.index); + } + outside_hw_if_index = vnet_get_sup_hw_interface(vcm->vnet_main, outside_sw_if_index); + if (outside_hw_if_index) { + vnet_hw_interface_rx_redirect_to_node(vcm->vnet_main, + outside_hw_if_index->hw_if_index, vcgn_classify_node.index); + } +#endif + return 0; +} + +static clib_error_t * +set_vcgn_tcp_timeout_command_fn (vlib_main_t * vm, + unformat_input_t * input, + vlib_cli_command_t * cmd) +{ + /* + vnet_main_t * vnm = vnet_get_main(); + vcgn_classify_main_t * vcm = &vcgn_classify_main; + */ + u32 act_timeout = 0; + u32 init_timeout = 0; + + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) { + if (unformat(input, "active %u", &act_timeout)) + tcp_active_timeout = act_timeout; + else if (unformat(input, "init %u", &init_timeout)) + tcp_initial_setup_timeout = init_timeout; + else break; + } + return 0; +} + +static clib_error_t * +set_vcgn_udp_timeout_command_fn (vlib_main_t * vm, + unformat_input_t * input, + vlib_cli_command_t * cmd) +{ + /* + vnet_main_t * vnm = vnet_get_main(); + vcgn_classify_main_t * vcm = &vcgn_classify_main; + */ + u32 act_timeout = 0; + u32 init_timeout = 0; + + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) { + if (unformat(input, "active %u", &act_timeout)) + udp_act_session_timeout = act_timeout; + else if (unformat(input, "init %u", &init_timeout)) + udp_init_session_timeout = init_timeout; + else break; + } + return 0; +} + + +static clib_error_t * +set_vcgn_icmp_timeout_command_fn (vlib_main_t * vm, + unformat_input_t * input, + vlib_cli_command_t * cmd) +{ + /* + * vnet_main_t * vnm = vnet_get_main(); + * vcgn_classify_main_t * vcm = &vcgn_classify_main; + */ + u32 timeout = 0; + + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) { + if (unformat(input, "%u", &timeout)) + ; + else break; + } + icmp_session_timeout = timeout; + return 0; +} + + +static clib_error_t * +set_vcgn_protocol_default_timeout_command_fn (vlib_main_t * vm, + unformat_input_t * input, + vlib_cli_command_t * cmd) +{ + /* + vnet_main_t * vnm = vnet_get_main(); + vcgn_classify_main_t * vcm = &vcgn_classify_main; + */ + u8 *protocol; + u8 reset = 1; + + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) { + if (unformat(input, "%s", &protocol)) + ; + else break; + } + cnat_nat44_set_protocol_timeout_value(0, 0, protocol, reset, vm); + return 0; +} + +static clib_error_t * +set_vcgn_dynamic_port_start_range_command_fn (vlib_main_t * vm, + unformat_input_t * input, + vlib_cli_command_t * cmd) +{ + /* + vnet_main_t * vnm = vnet_get_main(); + vcgn_classify_main_t * vcm = &vcgn_classify_main; + */ + u32 port = 0; + + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) { + if (unformat(input, "%u", &port)) + ; + else break; + } + if (port != 0 && port > 65535) { + vlib_cli_output(vm, "Error !! Invalid port\n"); + } else { + cnat_static_port_range = port; + vlib_cli_output(vm, "Dynamic Port Range Config Successful !!\n"); + } + return 0; +} + +static clib_error_t * +set_vcgn_port_limit_command_fn (vlib_main_t * vm, + unformat_input_t * input, + vlib_cli_command_t * cmd) +{ + /* + vnet_main_t * vnm = vnet_get_main(); + vcgn_classify_main_t * vcm = &vcgn_classify_main; + */ + u32 port = 0; + + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) { + if (unformat(input, "%u", &port)) + ; + else break; + } + if (port != 0 && port > 65535) { + vlib_cli_output(vm, "Error !! Invalid port\n"); + } else { + cnat_main_db_max_ports_per_user = port; + vlib_cli_output(vm, "Port Limit Config Successful !!\n"); + } + return 0; +} + +static inline void nfv9_init_pkt_sent_data(cnat_nfv9_logging_info_t *nfv9_info) +{ + nfv9_server_info_t *server = nfv9_server_info_pool + + nfv9_info->server_index; + + /* + * Reset the pkts_since_last_template and sent_time + * so that template will be sent next time + */ + server->last_template_sent_time = 0; + server->pkts_since_last_template = 0xffffffff; +} + +static inline u16 nfv9_get_max_length_minus_max_record_size(u16 path_mtu) +{ + u16 max_length_minus_max_record_size; + if(!path_mtu) /* Use default */ + path_mtu = NFV9_DEF_PATH_MTU; + + max_length_minus_max_record_size = path_mtu - + CNAT_NFV9_DATAFLOW_RECORD_HEADER_LENGTH - + NFV9_PAD_VALUE - + CNAT_NFV9_MAX_SINGLE_RECORD_LENGTH; /* Note.. as of now this record + * requires max number of bytes. If you add more records, + * this needs to be re-checked */ + if (max_length_minus_max_record_size < CNAT_NFV9_MIN_RECORD_SIZE) { + max_length_minus_max_record_size = CNAT_NFV9_MIN_RECORD_SIZE; + } + return max_length_minus_max_record_size; +} + +/* This function finds if the netflow server indicated by + * new_server_info is already configured for some other instance + * if yes, it returns the same pointer so that, info sent to the + * server is consistent. If the server is not found, a new instance + * is created and returned. If an existing server is used, its refernce + * count is incrimented (indicating the number of instances using the + * same server + */ + /* #define DEBUG_NF_SERVER_CONFIG 1 */ +static u16 nfv9_get_server_instance( + cnat_nfv9_logging_info_t *nfv9_info, nfv9_server_info_t *new_server_info) +{ + + /* Check if the instance has a server already and if yes, does it match */ + nfv9_server_info_t *server; + if(nfv9_info->server_index != EMPTY) { + server = nfv9_server_info_pool + nfv9_info->server_index; + + if((server->ipv4_address == new_server_info->ipv4_address) && + (server->port == new_server_info->port)) { + /* Same server.. just check if refresh rate/timeouts are reduced */ +#ifdef DEBUG_NF_SERVER_CONFIG + if(my_instance_number == 1) { + printf("\n Server match for %x and port %d\n", + new_server_info->ipv4_address, new_server_info->port); + } +#endif /* #ifdef DEBUG_NF_SERVER_CONFIG */ + goto adjust_refresh_rate; + } else { /* The server is being changed */ + server->ref_count--; +#ifdef DEBUG_NF_SERVER_CONFIG + if(my_instance_number == 1) { + printf("\n Server change from %x, %d to %x, %d" + "Ref count %d\n", + server->ipv4_address, + server->port, + new_server_info->ipv4_address, new_server_info->port, + server->ref_count); + } +#endif /* #ifdef DEBUG_NF_SERVER_CONFIG */ + if(!server->ref_count) { + /* Return this server to pool */ +#ifdef DEBUG_NF_SERVER_CONFIG + if(my_instance_number == 1) { + PLATFORM_DEBUG_PRINT("Deleting Server %x, %d at %d\n", + server->ipv4_address, + server->port, + nfv9_info->server_index); + } +#endif /* #ifdef DEBUG_NF_SERVER_CONFIG */ + pool_put(nfv9_server_info_pool, server); + } + } + } + + /* Now check if the server is already present in the pool */ + u8 found = 0; + server = 0; + pool_foreach (server, nfv9_server_info_pool, ({ + if ((server->ipv4_address == new_server_info->ipv4_address) && + (server->port == new_server_info->port)) { + server->ref_count++; + nfv9_info->server_index = server - nfv9_server_info_pool; + found = 1; +#ifdef DEBUG_NF_SERVER_CONFIG + if(my_instance_number == 1) { + printf("Re-using server %x, %d Ref count %d\n", + server->ipv4_address, server->port, server->ref_count); + } +#endif /* #ifdef DEBUG_NF_SERVER_CONFIG */ + break; + } + })); + + if(!found) { + /* Create a new one, initialize and return */ + server = 0; + pool_get(nfv9_server_info_pool, server); + clib_memcpy(server, new_server_info, sizeof(nfv9_server_info_t)); + server->ref_count = 1; + nfv9_info->server_index = server - nfv9_server_info_pool; +#ifdef DEBUG_NF_SERVER_CONFIG + if(my_instance_number == 1) { + printf("Create new server for at %d %x and port %d\n", + nfv9_info->server_index, + new_server_info->ipv4_address, new_server_info->port); + } +#endif /* #ifdef DEBUG_NF_SERVER_CONFIG */ + return CNAT_SUCCESS; + } + +adjust_refresh_rate: + if(server->refresh_rate > + new_server_info->refresh_rate) { + server->refresh_rate = + new_server_info->refresh_rate; +#ifdef DEBUG_NF_SERVER_CONFIG + if(my_instance_number == 1) { + printf("Reset refresh rate to %d\n", + server->refresh_rate); + } +#endif /* #ifdef DEBUG_NF_SERVER_CONFIG */ + } + + if(server->timeout_rate > + new_server_info->timeout_rate) { + server->timeout_rate = + new_server_info->timeout_rate; +#ifdef DEBUG_NF_SERVER_CONFIG + if(my_instance_number == 1) { + printf("Reset timeout rate to %d\n", + server->timeout_rate); + } +#endif /* #ifdef DEBUG_NF_SERVER_CONFIG */ + } + + return CNAT_SUCCESS; +} +static clib_error_t * +set_vcgn_nfv9_logging_cofig_command_fn (vlib_main_t * vm, + unformat_input_t * input, + vlib_cli_command_t * cmd) +{ + vcgn_classify_main_t * vcm = &vcgn_classify_main; + spp_api_cnat_v4_config_nfv9_logging_t nfv9_conf; + ip4_address_t server_addr; + u32 ip_addr = 0; + u32 port; + u32 refresh_rate = 0; + u32 timeout = 0; + u32 pmtu = 0; + u8 enable = 1; +/* vcgn changes start*/ + cnat_nfv9_logging_info_t *my_nfv9_logging_info = NULL; + cnat_nfv9_logging_info_t *my_nfv9_logging_info_tmp = NULL; + cnat_vrfmap_t *my_vrfmap = 0, *my_vrfmap_temp = 0; + u16 i_vrf = ~0; + u32 i_vrf_id = ~0; + u8 found; + u32 inside_sw_if_index = EMPTY; + /* + * Init NFv9 logging info as needed, this will be done only once + */ + cnat_nfv9_logging_init(); + + found = 0; + +/* vcgn changes end*/ + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) { + if (unformat (input, "inside %U", + unformat_vnet_sw_interface, &inside_sw_if_index)) { + /* Do nothing */ + } else if (unformat (input, "server %U", unformat_ip4_address, &server_addr)) + ip_addr = clib_net_to_host_u32(server_addr.as_u32); + else if (unformat(input, "port %u", &port)) + ; + else if (unformat(input, "refresh-rate %u", &refresh_rate)) + ; + else if (unformat(input, "timeout %u", &timeout)) + ; + else if (unformat(input, "pmtu %u", &pmtu)) + ; + else if (unformat(input, "del")) + enable = 0; + else break; + } + + if (inside_sw_if_index > vec_len(vcm->inside_sw_if_index_table) || + vcm->inside_sw_if_index_table[inside_sw_if_index] == EMPTY) { + return clib_error_return (0, "Could not find the inside interface"); + } + i_vrf = inside_sw_if_index; + i_vrf_id = inside_sw_if_index; + + #if 0 + vlib_cli_output(vm, "ip 0x%x, port %u, refresh %u, " + "timeout %u, pmtu %u enable %u\n", + ip_addr, port, refresh_rate, + timeout, pmtu, enable); + #endif + if (refresh_rate == 0) refresh_rate = 500; /* num of pkts */ + if (timeout == 0) timeout = 30; /* in mins */ + + nfv9_conf.enable = enable; + nfv9_conf.ipv4_address = ip_addr; + nfv9_conf.i_vrf_id = inside_sw_if_index; + nfv9_conf.i_vrf = inside_sw_if_index; + nfv9_conf.port = port; + nfv9_conf.refresh_rate = refresh_rate; + nfv9_conf.timeout_rate = timeout; + nfv9_conf.path_mtu = pmtu; + nfv9_conf.nfv9_global_collector = 0; + nfv9_conf.session_logging = 0; + + /* + * At this point the NFv9 global information should already be + * inited as we have called cnat_nfv9_logging_init() + */ + + if (nfv9_conf.nfv9_global_collector) { + if (cnat_nfv9_global_info.cnat_nfv9_global_collector_index != EMPTY) { + found = 1; + my_nfv9_logging_info = cnat_nfv9_logging_info_pool + + cnat_nfv9_global_info.cnat_nfv9_global_collector_index; + } + } else { + /* Do we already have a map for this VRF? */ + pool_foreach (my_nfv9_logging_info, cnat_nfv9_logging_info_pool, ({ + if (my_nfv9_logging_info->i_vrf_id == i_vrf_id) { + nfv9_server_info_t *server = nfv9_server_info_pool + + my_nfv9_logging_info->server_index; + if((server->ipv4_address == (nfv9_conf.ipv4_address)) && (server->port == (nfv9_conf.port))) { + found = 1; + my_nfv9_logging_info_tmp = my_nfv9_logging_info; + break; + } + } + })); + } + + if ((nfv9_conf.ipv4_address == 0) || + (nfv9_conf.port == 0)) { + vlib_cli_output(vm, + "Add NFv9 ivrf %d Logging Invalid values [IPv4 0x%x, PORT %d]\n", + i_vrf, + (nfv9_conf.ipv4_address), + (nfv9_conf.port)); + goto done; + } + + if (nfv9_conf.enable) { + if ((nfv9_conf.ipv4_address == 0) || + (nfv9_conf.port == 0)) { + nfv9_conf.rc = CNAT_ERR_PARSER; + vlib_cli_output(vm, + "NFV9_logging i_vrf %d, Invalid [v4_addr 0x%x port %d]\n", + i_vrf, + (nfv9_conf.ipv4_address), + (nfv9_conf.port)); + goto done; + } + + nfv9_server_info_t new_server_info; + memset(&new_server_info, 0, sizeof(nfv9_server_info_t)); + new_server_info.ipv4_address = + nfv9_conf.ipv4_address; + new_server_info.port = + (nfv9_conf.port); + new_server_info.refresh_rate = + (nfv9_conf.refresh_rate); + /* + * Store the timeout in seconds. User configures it in minutes + */ + new_server_info.timeout_rate = + 60*(nfv9_conf.timeout_rate); + if (found && my_nfv9_logging_info) { + /* + * Entry already present, change it + */ + my_nfv9_logging_info->max_length_minus_max_record_size = + nfv9_get_max_length_minus_max_record_size( + ((nfv9_conf.path_mtu))); + } else { + pool_get(cnat_nfv9_logging_info_pool, my_nfv9_logging_info); + memset(my_nfv9_logging_info, 0, sizeof(*my_nfv9_logging_info)); + my_nfv9_logging_info->server_index = EMPTY; + my_nfv9_logging_info->nfv9_logging_next_index = EMPTY; + /* + * Make the current and head logging context indeices as EMPTY. + * When first logging happens, these get set correctly + */ + my_nfv9_logging_info->current_logging_context = NULL; + my_nfv9_logging_info->queued_logging_context = NULL; +#if 0 + my_nfv9_logging_info->f = NULL; + my_nfv9_logging_info->to_next = NULL; + output_node = vlib_get_node_by_name (vm, (u8 *) "ip4-input"); + my_nfv9_logging_info->ip4_input_node_index = output_node->index; + printf("ip4_input_node_index %d\n", my_nfv9_logging_info->ip4_input_node_index); +#endif + my_nfv9_logging_info->i_vrf = i_vrf; + my_nfv9_logging_info->i_vrf_id = i_vrf_id; + my_nfv9_logging_info->max_length_minus_max_record_size = + nfv9_get_max_length_minus_max_record_size( + nfv9_conf.path_mtu); + + /* my_nfv9_logging_info will have a copy of logging_policy + * because, it is quite possible that nfv9 config arrives before + * the corresponding vrfmap is initialized. In such cases + * this copy will be used to update the vrfmap entry + */ + my_nfv9_logging_info->logging_policy = nfv9_conf.session_logging; + + if (nfv9_conf.nfv9_global_collector) { + cnat_nfv9_global_info.cnat_nfv9_global_collector_index = + my_nfv9_logging_info - cnat_nfv9_logging_info_pool; + + pool_foreach (my_vrfmap, cnat_map_by_vrf, ({ + if (my_vrfmap->nfv9_logging_index == EMPTY) { + my_vrfmap->nfv9_logging_index = + cnat_nfv9_global_info.cnat_nfv9_global_collector_index; + } + })); + } else { + u32 my_vrfmap_found = 0; + + FIND_MY_VRF_USING_I_VRF_ID + my_vrfmap = my_vrfmap_temp; + if (my_vrfmap_found) { + if(my_vrfmap->nfv9_logging_index == EMPTY) { + my_vrfmap->nfv9_logging_index = + my_nfv9_logging_info - cnat_nfv9_logging_info_pool; + // my_vrfmap->nf_logging_policy = mp->session_logging; + } else { + cnat_nfv9_logging_info_t *my_nfv9_logging_info_temp = cnat_nfv9_logging_info_pool + my_vrfmap->nfv9_logging_index; + while(my_nfv9_logging_info_temp->nfv9_logging_next_index != EMPTY){ + my_nfv9_logging_info_temp = cnat_nfv9_logging_info_pool + my_nfv9_logging_info_temp->nfv9_logging_next_index; + } + my_nfv9_logging_info_temp->nfv9_logging_next_index = my_nfv9_logging_info - cnat_nfv9_logging_info_pool; + } + } + } + } + + /* Update logging policy */ + my_nfv9_logging_info->logging_policy = nfv9_conf.session_logging; + if (nfv9_conf.nfv9_global_collector) { + if(PLATFORM_DBL_SUPPORT) { + pool_foreach (my_vrfmap, cnat_map_by_vrf, ({ + if (my_vrfmap->nfv9_logging_index == + cnat_nfv9_global_info.cnat_nfv9_global_collector_index) { + my_vrfmap->nf_logging_policy = nfv9_conf.session_logging; + } + })); + } else { + nfv9_conf.rc = CNAT_ERR_NO_SESSION_DB; + } + } else { + if(PLATFORM_DBL_SUPPORT) { + u32 my_vrfmap_found = 0; + my_vrfmap_temp = NULL; + FIND_MY_VRF_USING_I_VRF_ID + my_vrfmap = my_vrfmap_temp; + if (my_vrfmap_found) { + // my_vrfmap->nf_logging_policy = mp->session_logging; + } + } else { + nfv9_conf.rc = CNAT_ERR_NO_SESSION_DB; + } + } + u8 nfv9_logging_policy = 0; + u32 my_vrfmap_found = 0; + my_vrfmap_temp = NULL; + FIND_MY_VRF_USING_I_VRF_ID + my_vrfmap = my_vrfmap_temp; + if (my_vrfmap_found) { + u32 index_curr = my_vrfmap->nfv9_logging_index; + cnat_nfv9_logging_info_t *my_nfv9_logging_info_temp; + while(index_curr != EMPTY) { + my_nfv9_logging_info_temp = cnat_nfv9_logging_info_pool + index_curr; + nfv9_logging_policy = nfv9_logging_policy || my_nfv9_logging_info_temp->logging_policy; + index_curr = (cnat_nfv9_logging_info_pool + index_curr)->nfv9_logging_next_index; + } + my_vrfmap->nf_logging_policy = nfv9_logging_policy; + } + //vlib_cli_output(vm,"Netflow logging policy = %d\n", my_vrfmap->nf_logging_policy); + if(nfv9_get_server_instance(my_nfv9_logging_info, &new_server_info) + != CNAT_SUCCESS) { + vlib_cli_output(vm, "Error to get server instance"); + nfv9_conf.rc = CNAT_ERR_PARSER; + goto done; + } + nfv9_init_pkt_sent_data(my_nfv9_logging_info); + + vlib_cli_output(vm,"Adding NFv9 Logging Succeeded\n"); + nfv9_configured = 1; + + } else { + /*Delete path*/ + if (found) { + /* if found entry then we need to overwrite the my_nfv9_logging_info_tmp + * to my_nfv9_logging_info + */ + my_nfv9_logging_info = my_nfv9_logging_info_tmp; + if (i_vrf == INVALID_UIDX) { + /* + * We are deleting a global collector. Mark the collectors + * in those VRFs using the global collector + */ + pool_foreach (my_vrfmap, cnat_map_by_vrf, ({ + if (my_vrfmap->nfv9_logging_index == + cnat_nfv9_global_info.cnat_nfv9_global_collector_index) { + my_vrfmap->nfv9_logging_index = EMPTY; + } + })); + + cnat_nfv9_global_info.cnat_nfv9_global_collector_index = EMPTY; + } else { + u32 my_vrfmap_found = 0; + my_vrfmap_temp = NULL; + FIND_MY_VRF_USING_I_VRF_ID + my_vrfmap = my_vrfmap_temp; + if (my_vrfmap_found) { + // my_vrfmap->nfv9_logging_index = cnat_nfv9_global_info.cnat_nfv9_global_collector_index; + } + } + if (my_nfv9_logging_info->queued_logging_context || + my_nfv9_logging_info->current_logging_context) { + /* + * If there is a pending context: + * Set the deleted flag to 1. This will ensure + * that the logging info structure gets freed after any + * pending packet get sent + */ + my_nfv9_logging_info->deleted = 1; + } else { + /* + * No pending context, just free the logging info structure + */ + u32 index = my_nfv9_logging_info - cnat_nfv9_logging_info_pool; + if(index == my_vrfmap->nfv9_logging_index) { + /* Deleting the first sever */ + my_vrfmap->nfv9_logging_index = my_nfv9_logging_info->nfv9_logging_next_index; + /* if(my_nfv9_logging_info->nfv9_logging_next_index != EMPTY){ + my_vrfmap->nf_logging_policy = (cnat_nfv9_logging_info_pool + my_nfv9_logging_info->nfv9_logging_next_index)->logging_policy; + } else { + my_vrfmap->nf_logging_policy = EMPTY; + }*/ + } else { + u32 index_curr = my_vrfmap->nfv9_logging_index; + u32 index_prev = EMPTY; + while(index_curr != EMPTY) { + index_prev = index_curr; + index_curr = (cnat_nfv9_logging_info_pool + index_curr)->nfv9_logging_next_index; + if(index == index_curr) + { + (cnat_nfv9_logging_info_pool + index_prev)->nfv9_logging_next_index = (cnat_nfv9_logging_info_pool + index_curr)->nfv9_logging_next_index; + break; + } + } + } + nfv9_delete_server_info(my_nfv9_logging_info); + pool_put(cnat_nfv9_logging_info_pool, my_nfv9_logging_info); + } + + vlib_cli_output(vm, "Deleting NFv9 Logging Succeeded\n"); + /* + * Search across all vrf and check if nfv9 logging is configured. + */ + nfv9_configured = 0; + pool_foreach (my_nfv9_logging_info, cnat_nfv9_logging_info_pool, ({ + nfv9_configured = 1; + break; + })); + } else { + nfv9_conf.rc = CNAT_NO_CONFIG; + vlib_cli_output(vm, "Add NFv9 Logging Failed (2) Non Existent vrf %d\n", + i_vrf); + + } + u8 nfv9_logging_policy = 0; + u32 my_vrfmap_found = 0; + my_vrfmap_temp = NULL; + FIND_MY_VRF_USING_I_VRF_ID + my_vrfmap = my_vrfmap_temp; + if (my_vrfmap_found) { + u32 index_curr = my_vrfmap->nfv9_logging_index; + cnat_nfv9_logging_info_t *my_nfv9_logging_info_temp; + while(index_curr != EMPTY) { + my_nfv9_logging_info_temp = cnat_nfv9_logging_info_pool + index_curr; + nfv9_logging_policy = nfv9_logging_policy || my_nfv9_logging_info_temp->logging_policy; + index_curr = (cnat_nfv9_logging_info_pool + index_curr)->nfv9_logging_next_index; + } + my_vrfmap->nf_logging_policy = nfv9_logging_policy; + } + } + +done: + return 0; +} + +/* config CLIs */ +VLIB_CLI_COMMAND (set_vcgn_map_command) = { + .path = "set vcgn map", + .short_help = "set vcgn map <lo-address> [- <hi-address>]", + .function = set_vcgn_map_command_fn, +}; + +VLIB_CLI_COMMAND (set_vcgn_inside_command) = { + .path = "set vcgn inside", + .short_help = "set vcgn inside <inside intfc> outside <outside intfc>", + .function = set_vcgn_inside_command_fn, +}; + +VLIB_CLI_COMMAND (set_vcgn_tcp_timeout_command) = { + .path = "set vcgn tcp timeout", + .short_help = "set vcgn tcp timeout active <1-65535> init <1-65535>", + .function = set_vcgn_tcp_timeout_command_fn, +}; + +VLIB_CLI_COMMAND (set_vcgn_udp_timeout_command) = { + .path = "set vcgn udp timeout", + .short_help = "set vcgn udp timeout active <1-65535> init <1-65535>", + .function = set_vcgn_udp_timeout_command_fn, +}; + +VLIB_CLI_COMMAND (set_vcgn_icmp_timeout_command) = { + .path = "set vcgn icmp timeout", + .short_help = "set vcgn icmp timeout <1-65535>", + .function = set_vcgn_icmp_timeout_command_fn, +}; + +VLIB_CLI_COMMAND (set_vcgn_protocol_default_timeout_command) = { + .path = "set vcgn default timeout", + .short_help = "set vcgn default timeout protocol <tcp/udp/icmp>", + .function = set_vcgn_protocol_default_timeout_command_fn, +}; + +VLIB_CLI_COMMAND (set_vcgn_dynamic_port_start_range_command) = { + .path = "set vcgn dynamic port start", + .short_help = "set vcgn dynamic port start <1-65535>", + .function = set_vcgn_dynamic_port_start_range_command_fn, +}; + +VLIB_CLI_COMMAND (set_vcgn_port_limit_command) = { + .path = "set vcgn port limit", + .short_help = "set vcgn port limit <1-65535>", + .function = set_vcgn_port_limit_command_fn, +}; + +VLIB_CLI_COMMAND (set_vcgn_nfv9_logging_cofig_command) = { + .path = "set vcgn nfv9", + .short_help = "set vcgn nfv9 [del] inside <interface> " + "server <ip-addr> port <port> [refresh-rate <n>] " + "[timeout <n>] [pmtu <n>]", + .function = set_vcgn_nfv9_logging_cofig_command_fn, +}; + + +/* show CLIs */ +VLIB_CLI_COMMAND (show_vcgn_config_command) = { + .path = "show vcgn config", + .short_help = "show vcgn config", + .function = show_vcgn_config_command_fn, +}; + +VLIB_CLI_COMMAND (show_vcgn_stat_command) = { + .path = "show vcgn statistics", + .short_help = "show vcgn statistics", + .function = show_vcgn_stats_command_fn, +}; + +VLIB_CLI_COMMAND (show_vcgn_inside_translation_command) = { + .path = "show vcgn inside-translation", + .short_help = "show vcgn inside-translation protocol <tcp/udp/icmp> " + "interface <inside-if> inside-addr <ip-addr> " + "[start-port <n>] [end-port <n>]", + .function = show_vcgn_inside_translation_command_fn, +}; + +VLIB_CLI_COMMAND (show_vcgn_outside_translation_command) = { + .path = "show vcgn outside-translation", + .short_help = "show vcgn outside-translation protocol <tcp/udp/icmp> " + "interface <outside-if> outside-addr <ip-addr> " + "[start-port <n>] [end-port <n>]", + .function = show_vcgn_outside_translation_command_fn, +}; + +static clib_error_t * +vcgn_init (vlib_main_t * vm) +{ + clib_error_t * error = 0; + + if ((error = vlib_call_init_function + (vm, vcgn_classify_init))) + return error; + if ((error = vlib_call_init_function + (vm, cnat_ipv4_udp_inside_input_init))) + return error; + if ((error = vlib_call_init_function + (vm, cnat_ipv4_udp_outside_input_init))) + return error; + if ((error = vlib_call_init_function + (vm, cnat_ipv4_udp_inside_input_exc_init))) + return error; + if ((error = vlib_call_init_function + (vm, cnat_db_scanner_init))) + return error; + if ((error = vlib_call_init_function + (vm, cnat_ipv4_tcp_inside_input_init))) + return error; + if ((error = vlib_call_init_function + (vm, cnat_ipv4_tcp_inside_input_exc_init))) + return error; + if ((error = vlib_call_init_function + (vm, cnat_ipv4_tcp_outside_input_init))) + return error; + if ((error = vlib_call_init_function + (vm, cnat_ipv4_icmp_q_inside_input_init))) + return error; + if ((error = vlib_call_init_function + (vm, cnat_ipv4_icmp_q_inside_input_exc_init))) + return error; + if ((error = vlib_call_init_function + (vm, cnat_ipv4_icmp_q_outside_input_init))) + return error; + if ((error = vlib_call_init_function + (vm, cnat_ipv4_icmp_e_inside_input_init))) + return error; + if ((error = vlib_call_init_function + (vm, cnat_ipv4_icmp_e_outside_input_init))) + return error; + + return error; +} + +/* + * This routine exists to convince the vlib plugin framework that + * we haven't accidentally copied a random .dll into the plugin + * directory. This is used in lieu of VLIB_INIT_FUNCTION(vcgn_init). + * + * Also collects global variable pointers passed from the vpp engine + */ +clib_error_t * +vlib_plugin_register (vlib_main_t * vm, vnet_plugin_handoff_t * h, + int from_early_init) +{ + return vcgn_init(vm); +} diff --git a/plugins/vcgn-plugin/vcgn/vcgn_db.h b/plugins/vcgn-plugin/vcgn/vcgn_db.h new file mode 100644 index 00000000..cd7d835c --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/vcgn_db.h @@ -0,0 +1,117 @@ +/* + *------------------------------------------------------------------ + * vcgn_db.h - translation database definitions + * + * Copyright (c) 2007-2014 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ + +#ifndef __VCGN_DB_H__ +#define __VCGN_DB_H__ + +#include "index_list.h" + +/* + * The key structure. All fields are in NETWORK byte order! + */ +typedef struct { + u32 ipv4; + u16 port; + u16 vrf; //bit0-12:vrf, bit13:unused, bit14-15:protocol +} cnat_db_key_t; + +/* bit14-15:protocol in cnat_db_key_t */ +#define CNAT_INVALID_PROTO 0x0000 +#define CNAT_UDP 0x4000 +#define CNAT_TCP 0x8000 +#define CNAT_ICMP 0xc000 +#define CNAT_VRF_MASK 0x3fff +#define CNAT_PRO_MASK 0xc000 +#define CNAT_PRO_SHIFT 14 + +/* + * Maximum number of VRF entries supported + */ +#define CNAT_MAX_VRFMAP_ENTRIES (CNAT_VRF_MASK + 1) +/* + * for hashing purposes, fetch the key in one instr. + */ +typedef union { + cnat_db_key_t k; + u64 key64; +} cnat_key_t; + +/* + * Main translation database entries. Currently 0x50 = 80 bytes in length. + * Given 20,000,000 entries, it saves nearly 1gb of SDRAM to pack the entries + * and pay the extra prefetch. So, that's what we do. + */ + +typedef struct { + /* 0x00 */ + index_slist_t out2in_hash; /* hash-and-chain, x2 */ + index_slist_t in2out_hash; + + /* 0x08 */ + cnat_key_t out2in_key; /* network-to-user, outside-to-inside key */ + + /* 0x10 */ + cnat_key_t in2out_key; /* user-to-network, inside-to-outside key */ + + /* 0x18 */ + index_dlist_t user_ports; /* per-user translation list */ + + /* 0x20 */ + u32 user_index; /* index of user that owns this entry */ + + /* 0x24 */ + u16 vrfmap_index; /* index of vrfmap */ + + /* 0x26 */ + u16 flags; /* Always need flags... */ +#define CNAT_DB_FLAG_PORT_PAIR (1<<0) +#define CNAT_DB_FLAG_TCP_ACTIVE (1<<1) +#define CNAT_DB_FLAG_ENTRY_FREE (1<<2) +#define CNAT_DB_FLAG_UDP_ACTIVE (1<<3) +#define CNAT_DB_FLAG_STATIC_PORT (1<<4) +#define CNAT_DB_FLAG_ALG_ENTRY (1<<5) + + /* 0x28 */ + u32 dst_ipv4; /* pointer to ipv4 dst list, used in evil mode */ + + /* 0x2C */ + u32 out2in_pkts; /* pkt counters */ + + /* 0x30 */ + u32 in2out_pkts; + + /* 0x34 */ + u32 entry_expires; /* timestamp used to expire translations */ + + /* 0x38 */ + union { /* used by FTP ALG, pkt len delta due to FTP PORT cmd */ + u16 delta; + i8 alg_dlt[2]; /* two delta values, 0 for previous, 1 for current */ + u16 il; /* Used to indicate if interleaved mode is used + in case of RTSP ALG */ + } alg; + + /* 0x 48 */ + u32 tcp_seq_num; /* last tcp (FTP) seq # that has pkt len change due to PORT */ + + cnat_timeout_t destn_key; + + /* 0x4C... last byte -- 72 total */ +} cnat_main_db_entry_t; +#endif |