diff options
Diffstat (limited to 'hicn-plugin/src/faces')
29 files changed, 7994 insertions, 0 deletions
diff --git a/hicn-plugin/src/faces/app/address_mgr.c b/hicn-plugin/src/faces/app/address_mgr.c new file mode 100755 index 000000000..76a7e0f6d --- /dev/null +++ b/hicn-plugin/src/faces/app/address_mgr.c @@ -0,0 +1,243 @@ +/* + * Copyright (c) 2017-2019 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. + */ + +/* + * Copyright (c) 2017-2019 by cisco systems inc. All rights reserved. + * + */ + +#include <dlfcn.h> + +#include <vlib/vlib.h> +#include <vnet/ip/ip6_packet.h> +#include <vnet/ip/ip4.h> //ip4_add_del_ip_address +#include <vnet/ip/ip6.h> //ip6_add_del_ip_address +#include <vnet/fib/fib_types.h> //FIB_PROTOCOL_IP4/6, FIB_NODE_INDEX_INVALID +#include <vnet/fib/fib_entry.h> //FIB_SOURCE_PLUGIN_HI +#include <vnet/fib/fib_table.h> +#include <vppinfra/format.h> +#include <vnet/interface.h> //appif_flags +#include <vnet/interface_funcs.h> //vnet_sw_interface_set_flags + +#include "address_mgr.h" +#include "../../hicn.h" +#include "../../infra.h" +#include "../../error.h" +#include "../face.h" +#include "../ip/face_ip.h" +#include "../../strategy_dpo_ctx.h" +#include "../../route.h" + +typedef struct address_mgr_main_s +{ + ip4_address_t next_ip4_local_addr; + ip6_address_t next_ip6_local_addr; +} address_mgr_main_t; + +address_mgr_main_t address_mgr_main; + +static void +increment_v4_address (ip4_address_t * a, u32 val) +{ + u32 v; + + v = clib_net_to_host_u32 (a->as_u32) + val; + a->as_u32 = clib_host_to_net_u32 (v); +} + +static void +increment_v6_address (ip6_address_t * a, u64 val) +{ + u64 v; + + v = clib_net_to_host_u64 (a->as_u64[1]) + val; + a->as_u64[1] = clib_host_to_net_u64 (v); +} + +void +get_two_ip4_addresses (ip4_address_t * appif_addr, ip4_address_t * nh_addr) +{ + /* We want two consecutives address that fall into a /31 mask */ + if (address_mgr_main.next_ip4_local_addr.as_u8[3] & 0x01) + increment_v4_address (&(address_mgr_main.next_ip4_local_addr), 1); + + *appif_addr = address_mgr_main.next_ip4_local_addr; + increment_v4_address (&(address_mgr_main.next_ip4_local_addr), 1); + *nh_addr = address_mgr_main.next_ip4_local_addr; + fib_prefix_t fib_pfx; + fib_node_index_t fib_entry_index = FIB_NODE_INDEX_INVALID; + u32 fib_index; + + fib_pfx.fp_proto = FIB_PROTOCOL_IP4; + fib_pfx.fp_len = ADDR_MGR_IP4_LEN; + /* At this point the face exists in the face table */ + do + { + /* Check if the route already exist in the fib */ + fib_pfx.fp_addr = to_ip46 ( /* is_v6 */ 0, appif_addr->as_u8); + fib_index = fib_table_find_or_create_and_lock (fib_pfx.fp_proto, + HICN_FIB_TABLE, + FIB_SOURCE_PLUGIN_HI); + fib_entry_index = fib_table_lookup_exact_match (fib_index, &fib_pfx); + fib_table_unlock (fib_index, fib_pfx.fp_proto, FIB_SOURCE_PLUGIN_HI); + if (fib_entry_index != FIB_NODE_INDEX_INVALID) + { + fib_pfx.fp_addr = to_ip46 ( /* is_v6 */ 0, nh_addr->as_u8); + fib_index = fib_table_find_or_create_and_lock (fib_pfx.fp_proto, + HICN_FIB_TABLE, + FIB_SOURCE_PLUGIN_HI); + fib_entry_index = + fib_table_lookup_exact_match (fib_index, &fib_pfx); + fib_table_unlock (fib_index, fib_pfx.fp_proto, + FIB_SOURCE_PLUGIN_HI); + } + if (fib_entry_index != FIB_NODE_INDEX_INVALID) + { + increment_v4_address (appif_addr, 2); + increment_v4_address (nh_addr, 2); + } + } + while (fib_entry_index != FIB_NODE_INDEX_INVALID); + + address_mgr_main.next_ip4_local_addr = *nh_addr; + increment_v4_address (&(address_mgr_main.next_ip4_local_addr), 1); +} + +void +get_two_ip6_addresses (ip6_address_t * appif_addr, ip6_address_t * nh_addr) +{ + + /* We want two consecutives address that fall into a /127 mask */ + if (address_mgr_main.next_ip6_local_addr.as_u8[15] & 0x01) + increment_v6_address (&(address_mgr_main.next_ip6_local_addr), 1); + + *appif_addr = address_mgr_main.next_ip6_local_addr; + increment_v6_address (&(address_mgr_main.next_ip6_local_addr), 1); + *nh_addr = address_mgr_main.next_ip6_local_addr; + + + fib_prefix_t fib_pfx; + fib_node_index_t fib_entry_index = FIB_NODE_INDEX_INVALID; + u32 fib_index; + + fib_pfx.fp_proto = FIB_PROTOCOL_IP6; + fib_pfx.fp_len = ADDR_MGR_IP6_LEN; + /* At this point the face exists in the face table */ + do + { + /* Check if the route already exist in the fib */ + fib_pfx.fp_addr = to_ip46 ( /* is_v6 */ 1, appif_addr->as_u8); + fib_index = fib_table_find_or_create_and_lock (fib_pfx.fp_proto, + HICN_FIB_TABLE, + FIB_SOURCE_PLUGIN_HI); + fib_entry_index = fib_table_lookup_exact_match (fib_index, &fib_pfx); + fib_table_unlock (fib_index, fib_pfx.fp_proto, FIB_SOURCE_PLUGIN_HI); + if (fib_entry_index != FIB_NODE_INDEX_INVALID) + { + fib_pfx.fp_addr = to_ip46 ( /* is_v6 */ 0, nh_addr->as_u8); + fib_index = fib_table_find_or_create_and_lock (fib_pfx.fp_proto, + HICN_FIB_TABLE, + FIB_SOURCE_PLUGIN_HI); + fib_entry_index = + fib_table_lookup_exact_match (fib_index, &fib_pfx); + fib_table_unlock (fib_index, fib_pfx.fp_proto, + FIB_SOURCE_PLUGIN_HI); + } + if (fib_entry_index != FIB_NODE_INDEX_INVALID) + { + increment_v6_address (appif_addr, 2); + increment_v6_address (nh_addr, 2); + } + } + while (fib_entry_index != FIB_NODE_INDEX_INVALID); + + address_mgr_main.next_ip6_local_addr = *nh_addr; + increment_v6_address (&(address_mgr_main.next_ip6_local_addr), 1); +} + +ip4_address_t +get_ip4_address () +{ + ip4_address_t *prefix = &address_mgr_main.next_ip4_local_addr; + fib_prefix_t fib_pfx; + fib_node_index_t fib_entry_index = FIB_NODE_INDEX_INVALID; + u32 fib_index; + + fib_pfx.fp_proto = FIB_PROTOCOL_IP4; + fib_pfx.fp_len = ADDR_MGR_IP4_LEN; + /* At this point the face exists in the face table */ + do + { + /* Check if the route already exist in the fib */ + fib_pfx.fp_addr = to_ip46 ( /* is_v6 */ 0, prefix->as_u8); + fib_index = fib_table_find_or_create_and_lock (fib_pfx.fp_proto, + HICN_FIB_TABLE, + FIB_SOURCE_PLUGIN_HI); + fib_entry_index = fib_table_lookup_exact_match (fib_index, &fib_pfx); + fib_table_unlock (fib_index, fib_pfx.fp_proto, FIB_SOURCE_PLUGIN_HI); + increment_v4_address (prefix, 1); + } + while (fib_entry_index != FIB_NODE_INDEX_INVALID); + + return fib_pfx.fp_addr.ip4; +} + +ip6_address_t +get_ip6_address () +{ + ip6_address_t *prefix = &address_mgr_main.next_ip6_local_addr; + fib_prefix_t fib_pfx; + fib_node_index_t fib_entry_index = FIB_NODE_INDEX_INVALID; + u32 fib_index; + + fib_pfx.fp_proto = FIB_PROTOCOL_IP6; + fib_pfx.fp_len = ADDR_MGR_IP6_LEN; + /* At this point the face exists in the face table */ + do + { + /* Check if the route already exist in the fib */ + fib_pfx.fp_addr = to_ip46 ( /* is_v6 */ 1, prefix->as_u8); + fib_index = fib_table_find_or_create_and_lock (fib_pfx.fp_proto, + HICN_FIB_TABLE, + FIB_SOURCE_PLUGIN_HI); + fib_entry_index = fib_table_lookup_exact_match (fib_index, &fib_pfx); + fib_table_unlock (fib_index, fib_pfx.fp_proto, FIB_SOURCE_PLUGIN_HI); + increment_v6_address (prefix, 1); + } + while (fib_entry_index != FIB_NODE_INDEX_INVALID); + + return fib_pfx.fp_addr.ip6; +} + +void +address_mgr_init () +{ + + address_mgr_main.next_ip4_local_addr.as_u8[0] = 169; + address_mgr_main.next_ip4_local_addr.as_u8[1] = 254; + address_mgr_main.next_ip4_local_addr.as_u8[2] = 1; + address_mgr_main.next_ip4_local_addr.as_u8[3] = 1; + + ip6_address_set_zero (&address_mgr_main.next_ip6_local_addr); + address_mgr_main.next_ip6_local_addr.as_u16[0] = + clib_host_to_net_u16 (0xfc00); + address_mgr_main.next_ip6_local_addr.as_u8[15] = 1; +} + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/faces/app/address_mgr.h b/hicn-plugin/src/faces/app/address_mgr.h new file mode 100755 index 000000000..99450dcdd --- /dev/null +++ b/hicn-plugin/src/faces/app/address_mgr.h @@ -0,0 +1,76 @@ +/* + * Copyright (c) 2017-2019 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 _ADDRESS_MGR_H_ +#define _ADDRESS_MGR_H_ + +/** + * @file + * + * @brief Address manager. + * + * Address manager that maintains a pool of ip4 and ip6 addresses to assign to + * an interface. + */ + +#define ADDR_MGR_IP4_LEN 32 +#define ADDR_MGR_IP4_CONS_LEN 31 +#define ADDR_MGR_IP6_LEN 128 +#define ADDR_MGR_IP6_CONS_LEN 127 + +/** + * @brief Get two consecutive IP v4 addresses from the same /31 subnet + * + * @param addr1 first ip address with the least significant bit set to 0 + * @param addr2 second ip address with the least significant bit set to 1 + */ +void get_two_ip4_addresses (ip4_address_t * addr1, ip4_address_t * addr2); + +/** + * @brief Get two consecutive IP v6 addresses from the same /126 subnet + * + * @param addr1 first ip address with the least significant bit set to 0 + * @param addr2 second ip address with the least significant bit set to 1 + */ +void get_two_ip6_addresses (ip6_address_t * addr1, ip6_address_t * addr2); + +/** + * @brief Get one IP v4 address + * + * @return ip address + */ +ip4_address_t get_ip4_address (void); + +/** + * @brief Get one IP v6 address + * + * @return ip address + */ +ip6_address_t get_ip6_address (void); + +/** + * @brief Init the address manager + */ +void address_mgr_init (void); + +#endif /* _ADDRESS_MGR_ */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/app/face_app_cli.c b/hicn-plugin/src/faces/app/face_app_cli.c new file mode 100755 index 000000000..d55e990de --- /dev/null +++ b/hicn-plugin/src/faces/app/face_app_cli.c @@ -0,0 +1,203 @@ +/* + * Copyright (c) 2017-2019 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/vnet.h> +#include <vnet/dpo/dpo.h> +#include <vlib/vlib.h> +#include <vnet/ip/ip6_packet.h> + +#include "../ip/face_ip.h" +#include "../ip/dpo_ip.h" +#include "../face.h" +#include "face_prod.h" +#include "face_cons.h" + +#define HICN_FACE_NONE 0 +#define HICN_FACE_DELETE 1 +#define HICN_FACE_ADD 2 + +static clib_error_t * +hicn_face_app_cli_set_command_fn (vlib_main_t * vm, + unformat_input_t * main_input, + vlib_cli_command_t * cmd) +{ + vnet_main_t *vnm = vnet_get_main (); + ip46_address_t prefix; + hicn_face_id_t face_id = HICN_FACE_NULL; + u32 cs_reserved = HICN_PARAM_FACE_DFT_CS_RESERVED; + int ret = HICN_ERROR_NONE; + int sw_if; + int face_op = HICN_FACE_NONE; + int prod = 0; + int len; + + /* Get a line of input. */ + unformat_input_t _line_input, *line_input = &_line_input; + if (!unformat_user (main_input, unformat_line_input, line_input)) + { + return (0); + } + + while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (line_input, "del")) + { + face_op = HICN_FACE_DELETE; + } + else if (face_op == HICN_FACE_DELETE + && unformat (line_input, "id %d", &face_id)) + ; + else if (unformat (line_input, "add")) + { + face_op = HICN_FACE_ADD; + } + else if (face_op == HICN_FACE_ADD) + { + if (unformat (line_input, "intfc %U", + unformat_vnet_sw_interface, vnm, &sw_if)) + ; + else + if (unformat + (line_input, "prod prefix %U/%d", unformat_ip46_address, + &prefix, IP46_TYPE_ANY, &len)) + { + prod = 1; + } + else if (prod && unformat (line_input, "cs_size %d", &cs_reserved)) + ; + else if (unformat (line_input, "cons")) + ; + else + { + return clib_error_return (0, "%s '%U'", + get_error_string + (HICN_ERROR_CLI_INVAL), + format_unformat_error, line_input); + } + } + else + { + return clib_error_return (0, "%s '%U'", + get_error_string (HICN_ERROR_CLI_INVAL), + format_unformat_error, line_input); + } + } + + if (face_id != HICN_FACE_NULL) + { + + if (!hicn_dpoi_idx_is_valid (face_id)) + { + return clib_error_return (0, "%s, face_id %d not valid", + get_error_string (ret), face_id); + } + } + + int rv; + switch (face_op) + { + case HICN_FACE_ADD: + { + ip46_address_t prod_addr; + ip4_address_t cons_addr4; + ip6_address_t cons_addr6; + + hicn_prefix_t name_prefix = { + .name = prefix, + .len = len, + }; + if (prod) + { + rv = + hicn_face_prod_add (&name_prefix, sw_if, &cs_reserved, + &prod_addr, &face_id); + if (rv == HICN_ERROR_NONE) + { + u8 *sbuf = NULL; + sbuf = + format (sbuf, "Face id: %d, producer address %U", face_id, + format_ip46_address, &prod_addr, + 0 /*IP46_ANY_TYPE */ ); + vlib_cli_output (vm, "%s", sbuf); + } + else + { + return clib_error_return (0, get_error_string (rv)); + } + } + else + { + rv = + hicn_face_cons_add (&cons_addr4, &cons_addr6, sw_if, &face_id); + if (rv == HICN_ERROR_NONE) + { + u8 *sbuf = NULL; + sbuf = + format (sbuf, "Face id: %d, consumer addresses v4 %U v6 %U", + face_id, format_ip4_address, &cons_addr4, + format_ip6_address, &cons_addr6); + vlib_cli_output (vm, "%s", sbuf); + } + else + { + return clib_error_return (0, get_error_string (rv)); + } + } + break; + } + case HICN_FACE_DELETE: + { + hicn_face_t *face = hicn_dpoi_get_from_idx (face_id); + + if (face->shared.flags & HICN_FACE_FLAGS_APPFACE_CONS) + rv = hicn_face_cons_del (face_id); + else + rv = hicn_face_prod_del (face_id); + if (rv == HICN_ERROR_NONE) + { + vlib_cli_output (vm, "Face %d deleted", face_id); + } + else + { + return clib_error_return (0, get_error_string (rv)); + } + break; + } + default: + return clib_error_return (0, "Operation (%d) not implemented", face_op); + break; + } + return (rv == HICN_ERROR_NONE) ? 0 : clib_error_return (0, "%s\n", + get_error_string + (rv)); +} + +/* cli declaration for 'cfg face' */ +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (hicn_face_app_cli_set_command, static) = +{ + .path = "hicn face app", + .short_help = "hicn face app {add intfc <sw_if> { prod prefix <hicn_prefix> cs_size <size_in_packets>} {cons} | {del <face_id>}", + .function = hicn_face_app_cli_set_command_fn, +}; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/app/face_cons.c b/hicn-plugin/src/faces/app/face_cons.c new file mode 100755 index 000000000..8278b6ab3 --- /dev/null +++ b/hicn-plugin/src/faces/app/face_cons.c @@ -0,0 +1,126 @@ +/* + * Copyright (c) 2017-2019 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/ip/ip6_packet.h> +#include <vlib/vlib.h> +#include <vnet/vnet.h> + +#include "face_cons.h" +#include "address_mgr.h" +#include "../../infra.h" + +int +hicn_face_cons_add (ip4_address_t * nh_addr4, ip6_address_t * nh_addr6, + u32 swif, hicn_face_id_t * faceid) +{ + /* Create the corresponding appif if */ + /* Retrieve a valid local ip address to assign to the appif */ + /* Set the ip address and create the face in the face db */ + + vlib_main_t *vm = vlib_get_main (); + vnet_main_t *vnm = vnet_get_main (); + + hicn_main_t *hm = &hicn_main; + + ip46_address_t if_ip; + ip46_address_reset (&if_ip); + nh_addr4->as_u32 = 0; + nh_addr6->as_u64[0] = 0; + nh_addr6->as_u64[1] = 0; + u32 if_flags = 0; + + if (!hm->is_enabled) + { + return HICN_ERROR_FWD_NOT_ENABLED; + } + if_flags |= VNET_SW_INTERFACE_FLAG_ADMIN_UP; + vnet_sw_interface_set_flags (vnm, swif, if_flags); + + get_two_ip4_addresses (&(if_ip.ip4), nh_addr4); + ip4_add_del_interface_address (vm, + swif, + &(if_ip.ip4), + ADDR_MGR_IP4_CONS_LEN, 0 /* is_del */ ); + + ip46_address_t nh_addr = to_ip46 (0, (u8 *) nh_addr4); + + hicn_iface_ip_add (&if_ip, &nh_addr, swif, faceid); + + hicn_face_t *face = hicn_dpoi_get_from_idx (*faceid); + face->shared.flags |= HICN_FACE_FLAGS_APPFACE_CONS; + + get_two_ip6_addresses (&(if_ip.ip6), nh_addr6); + ip6_add_del_interface_address (vm, + swif, + &(if_ip.ip6), + ADDR_MGR_IP6_CONS_LEN, 0 /* is_del */ ); + + hicn_iface_ip_add (&if_ip, (ip46_address_t *) nh_addr6, swif, faceid); + + face = hicn_dpoi_get_from_idx (*faceid); + face->shared.flags |= HICN_FACE_FLAGS_APPFACE_CONS; + + return vnet_feature_enable_disable ("ip6-unicast", + "hicn-iface-ip6-input", swif, 1, 0, + 0) == + 0 ? HICN_ERROR_NONE : HICN_ERROR_APPFACE_FEATURE; +} + +int +hicn_face_cons_del (hicn_face_id_t face_id) +{ + hicn_face_t *face = hicn_dpoi_get_from_idx (face_id); + + if (face->shared.flags & HICN_FACE_FLAGS_APPFACE_CONS) + { + int ret = hicn_face_ip_del (face_id); + + return ret == + HICN_ERROR_NONE + ? (vnet_feature_enable_disable + ("ip6-unicast", "hicn-iface-ip6-input", face->shared.sw_if, 0, + 0, 0) == 0 ? HICN_ERROR_NONE : HICN_ERROR_APPFACE_FEATURE) : ret; + } + else + { + return HICN_ERROR_APPFACE_NOT_FOUND; + } +} + +u8 * +format_hicn_face_cons (u8 * s, va_list * args) +{ + CLIB_UNUSED (index_t index) = va_arg (*args, index_t); + CLIB_UNUSED (u32 indent) = va_arg (*args, u32); + + s = format (s, " (consumer face)"); + + return s; +} + +/* *INDENT-OFF* */ +VNET_FEATURE_INIT(hicn_cons_app, static)= +{ + .arc_name = "ip6-unicast", + .node_name = "hicn-iface-ip6-input", + .runs_before = VNET_FEATURES("ip6-inacl"), +}; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/faces/app/face_cons.h b/hicn-plugin/src/faces/app/face_cons.h new file mode 100755 index 000000000..067b45a1f --- /dev/null +++ b/hicn-plugin/src/faces/app/face_cons.h @@ -0,0 +1,75 @@ +/* + * Copyright (c) 2017-2019 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 _FACE_CONSUMER_H_ +#define _FACE_CONSUMER_H_ + +#include <vnet/vnet.h> +#include "../face.h" + +/** + * @file + * + * @brief Consumer application face. + * + * A consumer application face is built upon an ip face and identify a local + * consumer application (co-located with the forwarder) that acts as a + * consumer. The interface used by the consumer application face is + * assumed to be reserved only for hICN traffic (e.g., dedicated memif that + * connects the applictation to the forwarder). Only one application face can be + * assigned to an interface. + * + * In the vlib graph a consumer application face directly connect the + * device-input node to the hicn-vface-ip node. + */ + +/** + * @brief Add a new consumer application face + * + * The method creates the internal ip face and set the ip address to the interface. + * @param nh_addr4 ipv4 address to assign to interface used by the application to + * send interest to the consumer face + * @param nh_addr6 ipv6 address to assign to interface used by the application to + * send interest to the consumer face + * @param swif interface associated to the face + */ +int +hicn_face_cons_add (ip4_address_t * nh_addr4, ip6_address_t * nh_addr6, + u32 swif, hicn_face_id_t * faceid); + +/** + * @brief Delete an existing consumer application face + * + * @param face_id Id of the consumer application face + */ +int hicn_face_cons_del (hicn_face_id_t face_id); + +/** + * @brief Format an application consumer face + * + * @param s Pointer to a previous string. If null it will be initialize + * @param args Array storing input values. Expected u32 face_id and u32 indent + * @return String with the formatted face + */ +u8 *format_hicn_face_cons (u8 * s, va_list * args); + + +#endif /* _FACE_CONSUMER_H_ */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/faces/app/face_prod.c b/hicn-plugin/src/faces/app/face_prod.c new file mode 100755 index 000000000..d06fe2ff3 --- /dev/null +++ b/hicn-plugin/src/faces/app/face_prod.c @@ -0,0 +1,375 @@ +/* + * Copyright (c) 2017-2019 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/ip/ip6_packet.h> +#include <vlib/vlib.h> +#include <vnet/vnet.h> + +#include "face_prod.h" +#include "address_mgr.h" +#include "../../infra.h" +#include "../../route.h" +#include "../../cache_policies/cs_lru.h" + +hicn_face_prod_state_t *face_state_vec; + +/* used to check if an interface is already in the vector */ +u32 *face_state_pool; + +static int +hicn_app_state_create (u32 swif, hicn_prefix_t * prefix) +{ + /* Make sure that the pool is not empty */ + pool_validate_index (face_state_pool, 0); + + u32 *swif_app; + u8 found = 0; + /* *INDENT-OFF* */ + pool_foreach (swif_app, face_state_pool,{ + if (*swif_app == swif) + { + found = 1; + } + } + ); + /* *INDENT-ON* */ + + + if (found) + return HICN_ERROR_APPFACE_ALREADY_ENABLED; + + + /* Create the appif and store in the vector */ + vec_validate (face_state_vec, swif); + clib_memcpy (&(face_state_vec[swif].prefix), prefix, + sizeof (hicn_prefix_t)); + + /* Set as busy the element in the vector */ + pool_get (face_state_pool, swif_app); + *swif_app = swif; + + int ret = HICN_ERROR_NONE; + if (ip46_address_is_ip4 (&(prefix->name))) + { + ret = + vnet_feature_enable_disable ("ip4-unicast", "hicn-face-prod-input", + swif, 1, 0, 0); + } + else + { + ret = + vnet_feature_enable_disable ("ip6-unicast", "hicn-face-prod-input", + swif, 1, 0, 0); + } + + return ret == 0 ? HICN_ERROR_NONE : HICN_ERROR_APPFACE_FEATURE; +} + +static int +hicn_app_state_del (u32 swif) +{ + /* Make sure that the pool is not empty */ + pool_validate_index (face_state_pool, 0); + + u32 *temp; + u32 *swif_app = NULL; + u8 found = 0; + ip46_address_t *prefix_addr; + /* *INDENT-OFF* */ + pool_foreach (temp, face_state_pool,{ + if (*temp == swif) + { + found = 1; + swif_app = temp; + } + } + ); + /* *INDENT-ON* */ + + prefix_addr = &(face_state_vec[swif].prefix.name); + if (!found) + return HICN_ERROR_APPFACE_NOT_FOUND; + + int ret = HICN_ERROR_NONE; + if (ip46_address_is_ip4 (prefix_addr)) + { + ret = + vnet_feature_enable_disable ("ip4-unicast", "hicn-face-prod-input", + swif, 0, 0, 0); + } + else + { + ret = + vnet_feature_enable_disable ("ip6-unicast", "hicn-face-prod-input", + swif, 0, 0, 0); + } + + pool_put (face_state_pool, swif_app); + memset (&face_state_vec[swif], 0, sizeof (hicn_face_prod_state_t)); + + return ret == 0 ? HICN_ERROR_NONE : HICN_ERROR_APPFACE_FEATURE; +} + +int +hicn_face_prod_add (hicn_prefix_t * prefix, u32 sw_if, u32 * cs_reserved, + ip46_address_t * prod_addr, hicn_face_id_t * faceid) +{ + vlib_main_t *vm = vlib_get_main (); + vnet_main_t *vnm = vnet_get_main (); + + hicn_main_t *hm = &hicn_main; + + ip46_address_t app_ip; + u32 if_flags = 0; + + if (!hm->is_enabled) + { + return HICN_ERROR_FWD_NOT_ENABLED; + } + int ret = HICN_ERROR_NONE; + hicn_face_t *face = NULL; + + if_flags |= VNET_SW_INTERFACE_FLAG_ADMIN_UP; + vnet_sw_interface_set_flags (vnm, sw_if, if_flags); + + if (ip46_address_is_zero (&prefix->name)) + { + return HICN_ERROR_APPFACE_PROD_PREFIX_NULL; + } + /* + * Check if a producer face is already existing for the same prefix + * and sw_if + */ + if (ip46_address_is_ip4 (&prefix->name)) + { + face = + hicn_face_ip4_get (&(prefix->name.ip4), sw_if, + &hicn_face_ip_remote_hashtb); + } + else + { + face = + hicn_face_ip6_get (&(prefix->name.ip6), sw_if, + &hicn_face_ip_remote_hashtb); + if (face != NULL) + return HICN_ERROR_FACE_ALREADY_CREATED; + } + + if (face != NULL) + { + if (!(face->shared.flags & HICN_FACE_FLAGS_DELETED)) + return HICN_ERROR_FACE_ALREADY_CREATED; + + /* + * Something went worng, a consumer face exists for the + * producer's prefix. + */ + /* It should never happens, this is a safety check. */ + if (face->shared.flags & HICN_FACE_FLAGS_APPFACE_CONS) + return HICN_ERROR_FACE_ALREADY_CREATED; + + /* If the face exists but is marked as deleted, undelete it */ + if (face->shared.flags & HICN_FACE_FLAGS_DELETED) + { + /* + * remove the deleted flag and retrieve the face + * local addr + */ + face->shared.flags &= HICN_FACE_FLAGS_DELETED; + hicn_face_prod_t *prod_face = (hicn_face_prod_t *) face->data; + app_ip = prod_face->ip_face.local_addr; + } + } + else + { + /* Otherwise create the face */ + if (ip46_address_is_ip4 (&prefix->name)) + { + /* + * Otherwise retrieve an ip address to assign as a + * local ip addr. + */ + ip4_address_t app_ip4 = get_ip4_address (); + ip4_add_del_interface_address (vm, + sw_if, + &app_ip4, + ADDR_MGR_IP4_CONS_LEN, + 0 /* is_del */ ); + app_ip = to_ip46 ( /* isv6 */ 0, app_ip4.as_u8); + } + else + { + ip6_address_t app_ip6 = get_ip6_address (); + ip6_add_del_interface_address (vm, + sw_if, + &app_ip6, + ADDR_MGR_IP6_CONS_LEN, + 0 /* is_del */ ); + app_ip = to_ip46 ( /* isv6 */ 1, app_ip6.as_u8); + } + + /* + * Special case: the nh_addr in the face is the appif ip + * address + */ + ret = hicn_face_ip_add (&app_ip, &(prefix->name), sw_if, faceid); + + face = hicn_dpoi_get_from_idx (*faceid); + + face->shared.flags |= HICN_FACE_FLAGS_APPFACE_PROD; + + hicn_face_prod_t *prod_face = (hicn_face_prod_t *) face->data; + + /* + * For the moment we keep them here although it would be good + * to create a different face for appface + */ + prod_face->policy_vft.hicn_cs_insert = hicn_cs_lru.hicn_cs_insert; + prod_face->policy_vft.hicn_cs_update = hicn_cs_lru.hicn_cs_update; + prod_face->policy_vft.hicn_cs_dequeue = hicn_cs_lru.hicn_cs_dequeue; + prod_face->policy_vft.hicn_cs_delete_get = + hicn_cs_lru.hicn_cs_delete_get; + prod_face->policy_vft.hicn_cs_trim = hicn_cs_lru.hicn_cs_trim; + + } + + if (ret == HICN_ERROR_NONE + && hicn_face_prod_set_lru_max (*faceid, cs_reserved) == HICN_ERROR_NONE) + { + hicn_app_state_create (sw_if, prefix); + ret = hicn_route_add (faceid, 1, &(prefix->name), prefix->len); + } + + *prod_addr = app_ip; + + /* Cleanup in case of something went wrong. */ + if (ret) + { + hicn_app_state_del (sw_if); + + if (*faceid != HICN_FACE_NULL) + hicn_face_ip_del (*faceid); + } + return ret; +} + +int +hicn_face_prod_del (hicn_face_id_t face_id) +{ + hicn_face_t *face = hicn_dpoi_get_from_idx (face_id); + + if (face->shared.flags & HICN_FACE_FLAGS_APPFACE_PROD) + { + hicn_face_prod_t *prod_face = (hicn_face_prod_t *) face->data; + /* Free the CS reserved for the face */ + hicn_main.pitcs.pcs_app_max += prod_face->policy.max; + hicn_main.pitcs.pcs_app_count -= prod_face->policy.max; + prod_face->policy.max = 0; + + /* Remove the face from the fib */ + hicn_route_del_nhop (&(face_state_vec[face->shared.sw_if].prefix.name), + (face_state_vec[face->shared.sw_if].prefix.len), + face_id); + + int ret = hicn_face_ip_del (face_id); + return ret == + HICN_ERROR_NONE ? hicn_app_state_del (face->shared.sw_if) : ret; + } + else + { + return HICN_ERROR_APPFACE_NOT_FOUND; + } +} + +int +hicn_face_prod_set_lru_max (hicn_face_id_t face_id, u32 * requested_size) +{ + int ret = HICN_ERROR_NONE; + vlib_main_t *vm = vlib_get_main (); + hicn_face_t *face; + hicn_face_prod_t *face_prod; + + if (!hicn_infra_fwdr_initialized) + { + ret = HICN_ERROR_FWD_NOT_ENABLED; + vlib_cli_output (vm, "hicn: %s\n", get_error_string (ret)); + return ret; + } + face = hicn_dpoi_get_from_idx (face_id); + face_prod = (hicn_face_prod_t *) face->data; + + if (face == NULL) + return HICN_ERROR_FACE_NOT_FOUND; + + if (*requested_size > HICN_PARAM_FACE_MAX_CS_RESERVED) + *requested_size = HICN_PARAM_FACE_MAX_CS_RESERVED; + + uint32_t available = + hicn_main.pitcs.pcs_app_max - hicn_main.pitcs.pcs_app_count; + + if (*requested_size > available) + *requested_size = available; + + face_prod->policy.max = *requested_size; + face_prod->policy.count = 0; + face_prod->policy.head = face_prod->policy.tail = 0; + + hicn_main.pitcs.pcs_app_count += *requested_size; + + return ret; +} + +u8 * +format_hicn_face_prod (u8 * s, va_list * args) +{ + index_t index = va_arg (*args, index_t); + CLIB_UNUSED (u32 indent) = va_arg (*args, u32); + hicn_face_t *face; + hicn_face_prod_t *prod_face; + + face = hicn_dpoi_get_from_idx (index); + prod_face = (hicn_face_prod_t *) face->data; + + s = + format (s, " (producer face: CS size %d, data cached %d)", + prod_face->policy.max, prod_face->policy.count); + + return s; +} + +/* *INDENT-OFF* */ +VNET_FEATURE_INIT(hicn_prod_app_input_ip6, static)= +{ + .arc_name = "ip6-unicast", + .node_name = "hicn-face-prod-input", + .runs_before = VNET_FEATURES("ip6-inacl"), +}; +/* *INDENT-ON* */ + +/* *INDENT-OFF* */ +VNET_FEATURE_INIT(hicn_prod_app_input_ip4, static)= +{ + .arc_name = "ip4-unicast", + .node_name = "hicn-face-prod-input", + .runs_before = VNET_FEATURES("ip4-inacl"), +}; +/* *INDENT-ON* */ + + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/faces/app/face_prod.h b/hicn-plugin/src/faces/app/face_prod.h new file mode 100755 index 000000000..89b74680b --- /dev/null +++ b/hicn-plugin/src/faces/app/face_prod.h @@ -0,0 +1,113 @@ +/* + * Copyright (c) 2017-2019 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 _FACE_PRODUCER_H_ +#define _FACE_PRODUCER_H_ + +#include "../../cache_policies/cs_policy.h" +#include "../ip/face_ip.h" + +/** + * @file + * + * @brief Producer application face. + * + * A producer application face is built upon an ip face and identify a local + * producer application (co-located with the forwarder) that acts as a producer. In the + * current design an application face is either a face towards a consumer face + * or towards a producer. The interface used by the producer application face is + * assumed to be reserved only for hICN traffic (e.g., dedicated memif that + * connects the applictation to the forwarder). Only one application face can be + * assigned to an interface. + * + * To each producer application face it is assigned a portion of the CS. Every + * data arriving to a producer application will be stored in the portion of the + * CS assigned to the face. The eviction policy is defined in the + * face. Available eviction faces are list in the /cache_policy folder. + * + * In the vlib graph a producer application face is directly connected to the + * device-input node (with the node hicn-face-prod-input) and passes every packet to + * the hicn-face-ip node. + */ + +/** + * @brief Producer application face state that refer to the hICN producer socket + * created by the application. + * + */ +typedef struct +{ + hicn_prefix_t prefix; +} hicn_face_prod_state_t; + +extern hicn_face_prod_state_t *face_state_vec; + +typedef struct __attribute__ ((packed)) hicn_face_prod_t_ +{ + hicn_face_ip_t ip_face; + + hicn_cs_policy_t policy; + hicn_cs_policy_vft_t policy_vft; + +} hicn_face_prod_t; + +/** + * @brief Add a new producer application face + * + * The method creates the internal ip face and the state specific to the + * producer application face. This method setups a route in the FIB for the + * producer's prefix. + * @param prefix hicn prefix name assigned to the producer face + * @param len length of the prefix + * @param swif interface associated to the face + * @param cs_reserved return the amount of cs assigned to the face + * @param prod_addr address to assign to interface used by the appliction to + * send data to the producer face + */ +int +hicn_face_prod_add (hicn_prefix_t * prefix, u32 swif, u32 * cs_reserved, + ip46_address_t * prod_addr, hicn_face_id_t * faceid); + +/** + * @brief Delete an existing application face + * + * @param faceid id of the face to remove + */ +int hicn_face_prod_del (hicn_face_id_t faceid); + +/** + * @brief Set lru queue size for an app face + * + * @param face_id Id of the producer application face + */ +int hicn_face_prod_set_lru_max (hicn_face_id_t face_id, u32 * requested_size); + +/** + * @brief Format an application producer face + * + * @param s Pointer to a previous string. If null it will be initialize + * @param args Array storing input values. Expected u32 face_id and u32 indent + * @return String with the formatted face + */ +u8 *format_hicn_face_prod (u8 * s, va_list * args); + + +#endif /* _FACE_PROD_H_ */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/faces/app/face_prod_node.c b/hicn-plugin/src/faces/app/face_prod_node.c new file mode 100755 index 000000000..2e746a703 --- /dev/null +++ b/hicn-plugin/src/faces/app/face_prod_node.c @@ -0,0 +1,341 @@ +/* + * Copyright (c) 2017-2019 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. + */ + +/** + * @file + * + * @brief Application interface node + * + * This node runs after the device-input node and perfoms some safety checks in + * order to avoid unespected interest and data (i.e., hICN packets whose name do + * not contain the prefix associated to the application face) + */ + +#include "face_prod.h" +#include "../../hicn_api.h" +#include "../../mgmt.h" + +#define foreach_face_prod_input_error \ + _(NOT_SOCK_PREFIX, "name not in the socket prefix") + +typedef enum +{ +#define _(f,s) FACE_PROD_INPUT_ERROR_##f, + foreach_face_prod_input_error +#undef _ + FACE_PROD_INPUT_N_ERROR, +} face_prod_input_error_t; + +static __clib_unused char *face_prod_input_error_strings[] = { +#define _(n,s) s, + foreach_face_prod_input_error +#undef _ +}; + +/* Node context data */ +typedef struct hicn_face_prod_runtime_s +{ + int id; +} hicn_face_prod_runtime_t; + +typedef struct +{ + u32 next_index; + u32 sw_if_index; +} hicn_face_prod_input_trace_t; + +typedef enum +{ + HICN_FACE_PROD_NEXT_DATA_IP4, + HICN_FACE_PROD_NEXT_DATA_IP6, + HICN_FACE_PROD_NEXT_ERROR_DROP, + HICN_FACE_PROD_N_NEXT, +} hicn_face_prod_next_t; + +vlib_node_registration_t hicn_face_prod_input_node; + +static __clib_unused u8 * +format_face_prod_input_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 *); + hicn_face_prod_input_trace_t *t = + va_arg (*args, hicn_face_prod_input_trace_t *); + CLIB_UNUSED (u32 indent) = format_get_indent (s); + + s = format (s, "prod-face: sw_if_index %d next-index %d", + t->sw_if_index, t->next_index); + return s; +} + +static_always_inline int +match_ip4_name (u32 * name, hicn_prefix_t * prefix) +{ + u32 xor = 0; + + xor = *name & prefix->name.ip4.data_u32; + + return xor == prefix->name.ip4.data_u32; +} + +static_always_inline int +match_ip6_name (u32x4 * name, hicn_prefix_t * prefix) +{ + union + { + u32x4 as_u32x4; + u64 as_u64[2]; + u32 as_u32[4]; + } xor_sum __attribute__ ((aligned (sizeof (u32x4)))); + +#ifdef CLIB_HAVE_VEC128 + if (U32X4_ALIGNED (name)) + { //SSE can't handle unaligned data + xor_sum.as_u32x4 = *((u32x4 *) name) & + UNION_CAST (prefix->name.ip6.as_u64[0], u32x4); + } + else +#endif /* CLIB_HAVE_VEC128 */ + { + xor_sum.as_u64[0] = ((u64 *) name)[0] & prefix->name.ip6.as_u64[0]; + xor_sum.as_u64[1] = ((u64 *) name)[1] & prefix->name.ip6.as_u64[1]; + } + + return (xor_sum.as_u64[0] == prefix->name.ip6.as_u64[0]) && + (xor_sum.as_u64[1] == prefix->name.ip6.as_u64[1]); +} + +static_always_inline u32 +hicn_face_prod_next_from_data_hdr (vlib_node_runtime_t * node, + vlib_buffer_t * b, hicn_prefix_t * prefix) +{ + u8 *ptr = vlib_buffer_get_current (b); + u8 v = *ptr & 0xf0; + int match_res = 1; + + if (PREDICT_TRUE (v == 0x40 && ip46_address_is_ip4 (&prefix->name))) + { + match_res = match_ip4_name ((u32 *) & (ptr[12]), prefix); + } + else if (PREDICT_TRUE (v == 0x60 && !ip46_address_is_ip4 (&prefix->name))) + { + match_res = match_ip6_name ((u32x4 *) & (ptr[8]), prefix); + } + + b->error = 0*(1-match_res) + match_res*(node->errors[FACE_PROD_INPUT_ERROR_NOT_SOCK_PREFIX]); + + return match_res ? HICN_FACE_PROD_NEXT_DATA_IP4 + (v == + 0x60) : + HICN_FACE_PROD_NEXT_ERROR_DROP; +} + +static_always_inline void +hicn_face_prod_trace_buffer (vlib_main_t * vm, vlib_node_runtime_t * node, + u32 swif, vlib_buffer_t * b, u32 next) +{ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && + (b->flags & VLIB_BUFFER_IS_TRACED))) + { + hicn_face_prod_input_trace_t *t = + vlib_add_trace (vm, node, b, sizeof (*t)); + t->next_index = next; + t->sw_if_index = swif; + } +} + +static uword +hicn_face_prod_input_node_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + u32 n_left_from, *from, *to_next; + hicn_face_prod_next_t next_index; + vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; + + 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); + + while (n_left_from >= 8 && n_left_to_next >= 4) + { + vlib_buffer_t *b0, *b1, *b2, *b3; + u32 bi0, bi1, bi2, bi3; + hicn_face_prod_state_t *prod_face0 = NULL; + hicn_face_prod_state_t *prod_face1 = NULL; + hicn_face_prod_state_t *prod_face2 = NULL; + hicn_face_prod_state_t *prod_face3 = NULL; + u32 next0, next1, next2, next3; + + { + vlib_buffer_t *b4, *b5, *b6, *b7; + b4 = vlib_get_buffer (vm, from[4]); + b5 = vlib_get_buffer (vm, from[5]); + b6 = vlib_get_buffer (vm, from[6]); + b7 = vlib_get_buffer (vm, from[7]); + CLIB_PREFETCH (b4, CLIB_CACHE_LINE_BYTES, STORE); + CLIB_PREFETCH (b5, CLIB_CACHE_LINE_BYTES, STORE); + CLIB_PREFETCH (b6, CLIB_CACHE_LINE_BYTES, STORE); + CLIB_PREFETCH (b7, CLIB_CACHE_LINE_BYTES, STORE); + } + + bi0 = from[0]; + bi1 = from[1]; + bi2 = from[2]; + bi3 = from[3]; + + from += 4; + n_left_from -= 4; + to_next[0] = bi0; + to_next[1] = bi1; + to_next[2] = bi2; + to_next[3] = bi3; + + to_next += 4; + n_left_to_next -= 4; + + b0 = vlib_get_buffer (vm, bi0); + b1 = vlib_get_buffer (vm, bi1); + b2 = vlib_get_buffer (vm, bi2); + b3 = vlib_get_buffer (vm, bi3); + + prod_face0 = + &face_state_vec[vnet_buffer (b0)->sw_if_index[VLIB_RX]]; + prod_face1 = + &face_state_vec[vnet_buffer (b1)->sw_if_index[VLIB_RX]]; + prod_face2 = + &face_state_vec[vnet_buffer (b2)->sw_if_index[VLIB_RX]]; + prod_face3 = + &face_state_vec[vnet_buffer (b3)->sw_if_index[VLIB_RX]]; + + next0 = + hicn_face_prod_next_from_data_hdr (node, b0, &prod_face0->prefix); + next1 = + hicn_face_prod_next_from_data_hdr (node, b1, &prod_face1->prefix); + next2 = + hicn_face_prod_next_from_data_hdr (node, b2, &prod_face2->prefix); + next3 = + hicn_face_prod_next_from_data_hdr (node, b3, &prod_face3->prefix); + stats.pkts_data_count += 4; + + /* trace */ + hicn_face_prod_trace_buffer (vm, node, + vnet_buffer (b0)->sw_if_index[VLIB_RX], + b0, next0); + hicn_face_prod_trace_buffer (vm, node, + vnet_buffer (b1)->sw_if_index[VLIB_RX], + b1, next1); + hicn_face_prod_trace_buffer (vm, node, + vnet_buffer (b2)->sw_if_index[VLIB_RX], + b2, next2); + hicn_face_prod_trace_buffer (vm, node, + vnet_buffer (b3)->sw_if_index[VLIB_RX], + b3, next3); + + /* enqueue */ + vlib_validate_buffer_enqueue_x4 (vm, node, next_index, to_next, + n_left_to_next, bi0, bi1, bi2, bi3, + next0, next1, next2, next3); + + stats.pkts_processed += 4; + + } + + while (n_left_from > 0 && n_left_to_next > 0) + { + vlib_buffer_t *b0; + u32 bi0, swif; + hicn_face_prod_state_t *prod_face = NULL; + u32 next0; + + if (n_left_from > 1) + { + vlib_buffer_t *b1; + b1 = vlib_get_buffer (vm, from[1]); + CLIB_PREFETCH (b1, CLIB_CACHE_LINE_BYTES, STORE); + } + + bi0 = from[0]; + from += 1; + n_left_from -= 1; + to_next[0] = bi0; + to_next += 1; + n_left_to_next -= 1; + + b0 = vlib_get_buffer (vm, bi0); + swif = vnet_buffer (b0)->sw_if_index[VLIB_RX]; + prod_face = &face_state_vec[swif]; + + next0 = + hicn_face_prod_next_from_data_hdr (node, b0, &prod_face->prefix); + stats.pkts_data_count++; + + /* trace */ + hicn_face_prod_trace_buffer (vm, node, + vnet_buffer (b0)->sw_if_index[VLIB_RX], + b0, next0); + + /* enqueue */ + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, + n_left_to_next, bi0, next0); + + stats.pkts_processed += 1; + + } + + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + vlib_node_increment_counter (vm, node->node_index, + HICNFWD_ERROR_PROCESSED, stats.pkts_processed); + vlib_node_increment_counter (vm, node->node_index, + HICNFWD_ERROR_INTERESTS, + stats.pkts_interest_count); + vlib_node_increment_counter (vm, node->node_index, HICNFWD_ERROR_DATAS, + stats.pkts_data_count); + + return (frame->n_vectors); +} + +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE(hicn_face_prod_input_node) = +{ + .function = hicn_face_prod_input_node_fn, + .name = "hicn-face-prod-input", + .vector_size = sizeof(u32), + .format_trace = format_face_prod_input_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN(face_prod_input_error_strings), + .error_strings = face_prod_input_error_strings, + .n_next_nodes = HICN_FACE_PROD_N_NEXT, + .next_nodes = + { + [HICN_FACE_PROD_NEXT_DATA_IP4] = "hicn-face-ip4-input", + [HICN_FACE_PROD_NEXT_DATA_IP6] = "hicn-face-ip6-input", + [HICN_FACE_PROD_NEXT_ERROR_DROP] = "error-drop", + }, +}; +/* *INDENT-ON* */ + + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ diff --git a/hicn-plugin/src/faces/face.c b/hicn-plugin/src/faces/face.c new file mode 100755 index 000000000..f0559bb98 --- /dev/null +++ b/hicn-plugin/src/faces/face.c @@ -0,0 +1,141 @@ +/* + * Copyright (c) 2017-2019 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 "face.h" +#include "ip/face_ip.h" +#include "ip/face_ip_node.h" +#include "ip/iface_ip_node.h" +#include "ip/dpo_ip.h" +#include "udp/face_udp.h" +#include "udp/face_udp_node.h" +#include "udp/iface_udp_node.h" +#include "udp/dpo_udp.h" + +dpo_id_t *face_dpo_vec; +hicn_face_vft_t *face_vft_vec; +char **face_type_names_vec; + +hicn_face_t *hicn_dpoi_face_pool; + +dpo_type_t first_type = DPO_FIRST; + +u8 * +face_show (u8 * s, int face_id, u32 indent) +{ + s = format (s, "Faces:\n", indent); + indent += 4; + int i; + vec_foreach_index (i, face_dpo_vec) + { + s = + format (s, "%U", face_vft_vec[i].format_face, + face_dpo_vec[face_id].dpoi_index, indent); + } + + return (s); + +} + +void +register_face_type (hicn_face_type_t face_type, hicn_face_vft_t * vft, + char *name) +{ + if (first_type == DPO_FIRST) + first_type = face_type; + + int idx = face_type - first_type; + ASSERT (idx >= 0); + vec_validate (face_vft_vec, idx); + vec_validate (face_type_names_vec, idx); + + /* Copy the null char as well */ + char *name_str = (char *) malloc ((strlen (name) + 1) * sizeof (char)); + strcpy (name_str, name); + face_vft_vec[idx] = *vft; + face_type_names_vec[idx] = name_str; +} + +// Make this more flexible for future types face +void +hicn_face_module_init (vlib_main_t * vm) +{ + pool_validate (hicn_dpoi_face_pool); + + hicn_face_ip_init (vm); + hicn_iface_ip_init (vm); + hicn_face_udp_init (vm); + hicn_iface_udp_init (vm); +} + +u8 * +format_hicn_face_all (u8 * s, int n, ...) +{ + va_list ap; + va_start (ap, n); + u32 indent = va_arg (ap, u32); + + s = format (s, "Faces: %d\n", indent); + + hicn_face_t *face; + + /* *INDENT-OFF* */ + pool_foreach ( face, hicn_dpoi_face_pool, + { + hicn_face_vft_t * vft = hicn_face_get_vft(face->shared.face_type); + hicn_face_id_t face_id = hicn_dpoi_get_index(face); + s = format(s, "%U\n", vft->format_face, face_id, indent); + }); + /* *INDENT-ON* */ + + return s; +} + +hicn_face_vft_t * +hicn_face_get_vft (hicn_face_type_t face_type) +{ + int idx = face_type - first_type; + if (idx >= 0) + return &face_vft_vec[idx]; + else + return NULL; + +} + +int +hicn_face_del (hicn_face_id_t face_id) +{ + int ret = HICN_ERROR_NONE; + + if (pool_len (hicn_dpoi_face_pool) > face_id) + { + hicn_face_t *face = hicn_dpoi_get_from_idx (face_id); + if (face->shared.locks == 0) + pool_put_index (hicn_dpoi_face_pool, face_id); + else + face->shared.flags |= HICN_FACE_FLAGS_DELETED; + } + else + ret = HICN_ERROR_FACE_NOT_FOUND; + + return ret; +} + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/face.h b/hicn-plugin/src/faces/face.h new file mode 100755 index 000000000..2774d9a2e --- /dev/null +++ b/hicn-plugin/src/faces/face.h @@ -0,0 +1,240 @@ +/* + * Copyright (c) 2017-2019 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 __HICN_FACE_H__ +#define __HICN_FACE_H__ + +#include <vnet/vnet.h> +#include <vlib/vlib.h> +#include <vnet/dpo/dpo.h> +#include <vnet/adj/adj_types.h> + +typedef u8 hicn_face_flags_t; +typedef index_t hicn_face_id_t; +typedef dpo_type_t hicn_face_type_t; + +/** + * @file + * + * @brief Face + * + * This file implements a general face type. A face is carried through nodes as a + * dpo. The face state (hicn_face_t) is the object pointed by the + * dpoi_index in the dpo_id_t (see + * https://docs.fd.io/vpp/18.07/d0/d37/dpo_8h_source.html). + * A face state that does not contain the indication of the l2 adjacency is an + * incomplete face (iface), otherwise it is considered to be complete. Each face type + * provide specific node for processing packets in input or output of complete + * and incomplete faces. + */ + +/** + * @brief Fields shared among all the different types of faces + */ +typedef struct __attribute__ ((packed)) hicn_face_shared_s +{ + /* Flags to idenfity if the face is incomplete (iface), complete (face) */ + /* And a network or application face (1B) */ + hicn_face_flags_t flags; + + /* Path label (2B) */ + u16 pl_id; + + /* Number of dpo holding a reference to the dpoi (4B) */ + u32 locks; + + /* Adjacency for the neighbor (4B) */ + adj_index_t adj; + + /* local interface for the local ip address */ + u32 sw_if; + + /* Face id corresponding to the global face pool (4B) */ + union + { + hicn_face_type_t face_type; + u32 int_face_type; //To forse the face_type_t to be 4B + }; + +} hicn_face_shared_t; + +/** + * @brief Structure holding the face state. It containes the fields shared among + * all the types of faces as well it leaves some space for storing additional + * information specific to each type. + */ +typedef struct __attribute__ ((packed)) hicn_face_s +{ + /* Additional space to fill with face_type specific information */ + u8 data[2 * CLIB_CACHE_LINE_BYTES - sizeof (hicn_face_shared_t)]; + hicn_face_shared_t shared; + +} + +hicn_face_t; + +/* Pool of faces */ +extern hicn_face_t *hicn_dpoi_face_pool; + +/* Flags */ +/* A face is complete and it stores all the information. A iface lacks of the + adj index, therefore sending a packet through a iface require a lookup in + the FIB. */ +#define HICN_FACE_FLAGS_DEFAULT 0x00 +#define HICN_FACE_FLAGS_FACE 0x01 +#define HICN_FACE_FLAGS_IFACE 0x02 +#define HICN_FACE_FLAGS_APPFACE_PROD 0x04 /* Currently only IP face can be appface */ +#define HICN_FACE_FLAGS_APPFACE_CONS 0x08 /* Currently only IP face can be appface */ +#define HICN_FACE_FLAGS_DELETED 0x10 + +#define HICN_FACE_NULL (hicn_face_id_t) ~0 + +/** + * @brief Definition of the virtual functin table for an hICN FACE DPO. + * + * An hICN dpo is a combination of a dpo context (hicn_dpo_ctx or struct that + * extends a hicn_dpo_ctx) and a strategy node. The following virtual function table + * template that glues together the fuction to interact with the context and the + * creating the dpo + */ +typedef struct hicn_face_vft_s +{ + u8 *(*format_face) (u8 * s, va_list * args); + /**< Format an hICN face dpo*/ + int (*hicn_face_del) (hicn_face_id_t face_id); + void (*hicn_face_get_dpo) (hicn_face_t * face, dpo_id_t * dpo); +} hicn_face_vft_t; + + +/* Vector maintaining a dpo per face */ +extern dpo_id_t *face_dpo_vec; +extern hicn_face_vft_t *face_vft_vec; + +/* Vector holding the set of face names */ +extern char **face_type_names_vec; + +/* First face type registered in the sytem.*/ +extern dpo_type_t first_type; + +/** + * @brief Return the face id from the face state + * + * @param Pointer to the face state + * @return face id + */ +always_inline hicn_face_id_t +hicn_dpoi_get_index (hicn_face_t * face_dpoi) +{ + return face_dpoi - hicn_dpoi_face_pool; +} + +/** + * @brief Return the face from the face id. Face id must be valid. + * + * @param dpoi_index Face identifier + * @return Pointer to the face + */ +always_inline hicn_face_t * +hicn_dpoi_get_from_idx (hicn_face_id_t dpoi_index) +{ + return (hicn_face_t *) pool_elt_at_index (hicn_dpoi_face_pool, dpoi_index); +} + +/** + * @brief Return true if the face id belongs to an existing face + */ +always_inline int +hicn_dpoi_idx_is_valid (hicn_face_id_t face_id) +{ + return pool_len (hicn_dpoi_face_pool) > face_id + && !pool_is_free_index (hicn_dpoi_face_pool, face_id); +} + +/** + * @brief Add a lock to the face dpo + * + * @param dpo Pointer to the face dpo + */ +always_inline void +hicn_face_lock (dpo_id_t * dpo) +{ + hicn_face_t *face; + face = hicn_dpoi_get_from_idx (dpo->dpoi_index); + face->shared.locks++; +} + +/** + * @brief Remove a lock to the face dpo. Deallocate the face id locks == 0 + * + * @param dpo Pointer to the face dpo + */ +always_inline void +hicn_face_unlock (dpo_id_t * dpo) +{ + hicn_face_t *face; + face = hicn_dpoi_get_from_idx (dpo->dpoi_index); + face->shared.locks--; +} + +/** + * @brief Init the internal structures of the face module + * + * Must be called before processing any packet + */ +void hicn_face_module_init (vlib_main_t * vm); + +/** + * @brief Format all the existing faces + * + * @param s Pointer to a previous string. If null it will be initialize + * @param n Number of input parameters + * @return String with the faces formatted + */ +u8 *format_hicn_face_all (u8 * s, int n, ...); + +/** + * @brief Delete a face + * + * @param face_id Id of the face to delete + * @return HICN_ERROR_FACE_NOT_FOUND if the face does not exist, otherwise + * HICN_ERROR_NONE + */ +int hicn_face_del (hicn_face_id_t face_id); + +/** + * @brief Return the virtual function table corresponding to the face type + * + * @param face_type Type of the face + * @return NULL if the face type does not exist + */ +hicn_face_vft_t *hicn_face_get_vft (hicn_face_type_t face_type); + +/** + * @brief Register a new face type + * + * @param face_type Type of the face + * @param vft Virtual Function table for the new face type + */ +void register_face_type (hicn_face_type_t face_type, hicn_face_vft_t * vft, + char *name); +#endif // __HICN_FACE_H__ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/face_cli.c b/hicn-plugin/src/faces/face_cli.c new file mode 100755 index 000000000..3ddf96beb --- /dev/null +++ b/hicn-plugin/src/faces/face_cli.c @@ -0,0 +1,131 @@ +/* + * Copyright (c) 2017-2019 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 <vppinfra/error.h> +#include "face.h" +#include "../error.h" + +static clib_error_t * +hicn_face_cli_show_command_fn (vlib_main_t * vm, + unformat_input_t * main_input, + vlib_cli_command_t * cmd) +{ + + hicn_face_id_t face_id = HICN_FACE_NULL; + char *face_type_name = NULL; + int found = ~0; + int deleted = 0; + + + /* Get a line of input. */ + unformat_input_t _line_input, *line_input = &_line_input; + if (unformat_user (main_input, unformat_line_input, line_input)) + { + while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (line_input, "%u", &face_id)) + ; + else if (unformat (line_input, "type %s", &face_type_name)) + ; + else if (unformat (line_input, "deleted")) + deleted = 1; + else + { + return clib_error_return (0, "%s", + get_error_string + (HICN_ERROR_CLI_INVAL)); + } + } + + if (face_type_name != NULL) + { + int idx = 0; + vec_foreach_index (idx, face_type_names_vec) + { + if (!strcmp (face_type_names_vec[idx], face_type_name)) + found = idx; + } + if (found == ~0) + return (clib_error_return (0, "Face type unknown")); + } + + } + + if (face_id != HICN_FACE_NULL) + { + if (!hicn_dpoi_idx_is_valid (face_id)) + return clib_error_return (0, "%s", + get_error_string + (HICN_ERROR_FACE_NOT_FOUND)); + + hicn_face_t *face = hicn_dpoi_get_from_idx (face_id); + hicn_face_vft_t *vft = hicn_face_get_vft (face->shared.face_type); + vlib_cli_output (vm, "%U\n", vft->format_face, face_id, 0 /*indent */ ); + } + else + { + if (found != ~0) + { + hicn_face_t *face; + dpo_type_t type = (dpo_type_t) (found + first_type); + hicn_face_vft_t *vft = hicn_face_get_vft (type); + /* *INDENT-OFF* */ + pool_foreach(face, hicn_dpoi_face_pool, + { + if (!((face->shared.flags & HICN_FACE_FLAGS_DELETED) && !deleted)) + { + if ((face->shared.face_type == type) && (face->shared.flags)) + vlib_cli_output(vm, "%U\n", vft->format_face, hicn_dpoi_get_index(face), 0); + } + }); + /* *INDENT-ON* */ + } + else + { + hicn_face_t *face; + /* *INDENT-OFF* */ + pool_foreach(face, hicn_dpoi_face_pool, + { + if (!((face->shared.flags & HICN_FACE_FLAGS_DELETED) && !deleted)) + { + hicn_face_vft_t * vft = hicn_face_get_vft(face->shared.face_type); + vlib_cli_output(vm, "%U\n", vft->format_face, hicn_dpoi_get_index(face), 0); + } + }); + /* *INDENT-ON* */ + } + } + + return 0; +} + +/* cli declaration for 'show faces' */ +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (hicn_face_cli_show_command, static) = +{ + .path = "hicn face show", + .short_help = "hicn face show [<face_id>| type <ip/udp>]", + .function = hicn_face_cli_show_command_fn, +}; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/ip/dpo_ip.c b/hicn-plugin/src/faces/ip/dpo_ip.c new file mode 100755 index 000000000..1b2dbcff9 --- /dev/null +++ b/hicn-plugin/src/faces/ip/dpo_ip.c @@ -0,0 +1,187 @@ +/* + * Copyright (c) 2017-2019 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 "dpo_ip.h" + +mhash_t hicn_face_ip_local_hashtb; +mhash_t hicn_face_ip_remote_hashtb; +dpo_type_t hicn_face_ip_type; + +const static char *const hicn_face_ip4dpoi_nodes[] = { + "hicn-face-ip4-input", + "hicn-face-ip4-output", + "hicn-iface-ip4-input", + "hicn-iface-ip4-output", + NULL, +}; + +const static char *const hicn_face_ip6dpoi_nodes[] = { + "hicn-face-ip6-input", + "hicn-face-ip6-output", + "hicn-iface-ip6-input", + "hicn-iface-ip6-output", + NULL, +}; + +const static char *const *const hicn_ip_nodes[DPO_PROTO_NUM] = { + [DPO_PROTO_IP4] = hicn_face_ip4dpoi_nodes, + [DPO_PROTO_IP6] = hicn_face_ip6dpoi_nodes +}; + +const static dpo_vft_t hicn_face_ip_vft = { + .dv_lock = hicn_face_lock, + .dv_unlock = hicn_face_unlock, + .dv_format = format_hicn_face_ip, +}; + +/* Must be executed after all the strategy nodes are created */ +void +hicn_dpo_ip_module_init (void) +{ + mhash_init (&hicn_face_ip_local_hashtb, + sizeof (hicn_face_id_t) /* value */ , + sizeof (hicn_face_ip_key_t) /* key */ ); + mhash_init (&hicn_face_ip_remote_hashtb, + sizeof (hicn_face_id_t) /* value */ , + sizeof (hicn_face_ip_key_t) /* key */ ); + + /* + * How much useful is the following registration? + * So far it seems that we need it only for setting the dpo_type. + */ + hicn_face_ip_type = + dpo_register_new_type (&hicn_face_ip_vft, hicn_ip_nodes); +} + + +int +hicn_dpo_ip4_create (dpo_id_t * dpo, + const ip4_address_t * local_addr, + const ip4_address_t * remote_addr, + u32 sw_if, + adj_index_t adj, + u32 node_index, + hicn_face_flags_t flags, hicn_face_id_t * face_id) +{ + /* If local matches the dpoi is a face */ + hicn_face_t *face = + hicn_face_ip4_get (local_addr, sw_if, &hicn_face_ip_local_hashtb); + u8 is_appface; + + if (face != NULL) + return HICN_ERROR_FACE_ALREADY_CREATED; + + face = hicn_face_ip4_get (remote_addr, sw_if, &hicn_face_ip_remote_hashtb); + + if (face == NULL) + { + hicn_dpo_ip4_add_and_lock_from_remote (dpo, &is_appface, local_addr, + remote_addr, sw_if, node_index); + *face_id = (hicn_face_id_t) dpo->dpoi_index; + face = hicn_dpoi_get_from_idx (*face_id); + } + else + { + *face_id = hicn_dpoi_get_index (face); + dpo_set (dpo, hicn_face_ip_type, DPO_PROTO_IP4, *face_id); + dpo->dpoi_next_node = node_index; + } + + + hicn_face_ip_key_t key; + hicn_face_ip4_get_key (local_addr, sw_if, &key); + + mhash_set_mem (&hicn_face_ip_local_hashtb, &key, (uword *) face_id, 0); + + hicn_face_ip_t *ip_face = (hicn_face_ip_t *) face->data; + ip46_address_set_ip4 (&ip_face->local_addr, local_addr); + ip46_address_set_ip4 (&ip_face->remote_addr, remote_addr); + face->shared.flags = flags; + face->shared.adj = adj; + + return HICN_ERROR_NONE; +} + +int +hicn_dpo_ip6_create (dpo_id_t * dpo, + const ip6_address_t * local_addr, + const ip6_address_t * remote_addr, + u32 sw_if, + adj_index_t adj, + u32 node_index, + hicn_face_flags_t flags, hicn_face_id_t * face_id) +{ + /* If local matches the dpoi is a face */ + hicn_face_t *face = + hicn_face_ip6_get (local_addr, sw_if, &hicn_face_ip_local_hashtb); + + u8 is_appface; + + if (face != NULL) + return HICN_ERROR_FACE_ALREADY_CREATED; + + face = hicn_face_ip6_get (remote_addr, sw_if, &hicn_face_ip_remote_hashtb); + + /* If remote matches the dpoi is a iface */ + if (face == NULL) + { + hicn_dpo_ip6_add_and_lock_from_remote (dpo, &is_appface, local_addr, + remote_addr, sw_if, node_index); + *face_id = (hicn_face_id_t) dpo->dpoi_index; + face = hicn_dpoi_get_from_idx (*face_id); + } + else + { + *face_id = hicn_dpoi_get_index (face); + dpo_set (dpo, hicn_face_ip_type, DPO_PROTO_IP6, *face_id); + dpo->dpoi_next_node = node_index; + } + + hicn_face_ip_key_t key; + hicn_face_ip6_get_key (local_addr, sw_if, &key); + + mhash_set_mem (&hicn_face_ip_local_hashtb, &key, (uword *) face_id, 0); + + hicn_face_ip_t *ip_face = (hicn_face_ip_t *) face->data; + clib_memcpy (&ip_face->local_addr, local_addr, sizeof (ip6_address_t)); + clib_memcpy (&ip_face->remote_addr, remote_addr, sizeof (ip6_address_t)); + face->shared.sw_if = sw_if; + face->shared.flags = flags; + face->shared.adj = adj; + + + return HICN_ERROR_NONE; +} + +void +hicn_dpo_ip_create_from_face (hicn_face_t * face, dpo_id_t * dpo, + u16 dpoi_next_node) +{ + hicn_face_id_t face_dpoi_id = hicn_dpoi_get_index (face); + hicn_face_ip_t *ip_face = (hicn_face_ip_t *) face->data; + dpo_set (dpo, face->shared.face_type, + ip46_address_is_ip4 (&ip_face-> + local_addr) ? DPO_PROTO_IP4 : DPO_PROTO_IP6, + face_dpoi_id); + dpo->dpoi_next_node = dpoi_next_node; +} + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/ip/dpo_ip.h b/hicn-plugin/src/faces/ip/dpo_ip.h new file mode 100755 index 000000000..675443277 --- /dev/null +++ b/hicn-plugin/src/faces/ip/dpo_ip.h @@ -0,0 +1,255 @@ +/* + * Copyright (c) 2017-2019 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 __HICN_DPO_IP_H__ +#define __HICN_DPO_IP_H__ + +#include <vnet/vnet.h> +#include <vnet/ip/ip4_packet.h> + +#include "face_ip.h" +#include "../face.h" + +/** + * @brief Initialize the internal structures of the dpo ip face module. + */ +void hicn_dpo_ip_module_init (void); + + +/** + * @brief Retrieve a face from the ip4 local address and returns its dpo. This + * method adds a lock on the face state. + * + * @param dpo: Result of the lookup. If the face doesn't exist dpo = NULL + * @param is_appface: Boolean that indicates whether the face is an application + * face or not + * @param local_addr: Ip v4 local address of the face + * @param sw_if: software interface id of the face + * + * @result HICN_ERROR_FACE_NOT_FOUND if the face does not exist, otherwise HICN_ERROR_NONE. + */ +always_inline int +hicn_dpo_ip4_lock_from_local (dpo_id_t * dpo, + u8 * is_appface, + const ip4_address_t * local_addr, u32 sw_if) +{ + hicn_face_t *face = + hicn_face_ip4_get (local_addr, sw_if, &hicn_face_ip_local_hashtb); + + if (PREDICT_FALSE (face == NULL)) + return HICN_ERROR_FACE_NOT_FOUND; + + *is_appface = face->shared.flags & HICN_FACE_FLAGS_APPFACE_PROD; + + hicn_face_id_t dpoi_index = hicn_dpoi_get_index (face); + dpo_set (dpo, hicn_face_ip_type, DPO_PROTO_IP4, dpoi_index); + dpo->dpoi_next_node = ~0; + dpo_lock (dpo); + + return HICN_ERROR_NONE; +} + +/** + * @brief Retrieve a face from the ip6 local address and returns its dpo. This + * method adds a lock on the face state. + * + * @param dpo: Result of the lookup. If the face doesn't exist dpo = NULL + * @param is_appface: Boolean that indicates whether the face is an application + * face or not + * @param local_addr: Ip v6 local address of the face + * @param sw_if: software interface id of the face + * + * @result HICN_ERROR_FACE_NOT_FOUND if the face does not exist, otherwise HICN_ERROR_NONE. + */ +always_inline int +hicn_dpo_ip6_lock_from_local (dpo_id_t * dpo, + u8 * is_appface, + const ip6_address_t * local_addr, u32 sw_if) +{ + hicn_face_t *face = + hicn_face_ip6_get (local_addr, sw_if, &hicn_face_ip_local_hashtb); + + if (PREDICT_FALSE (face == NULL)) + return HICN_ERROR_FACE_NOT_FOUND; + + *is_appface = face->shared.flags & HICN_FACE_FLAGS_APPFACE_PROD; + + hicn_face_id_t dpoi_index = hicn_dpoi_get_index (face); + dpo_set (dpo, hicn_face_ip_type, DPO_PROTO_IP6, dpoi_index); + dpo->dpoi_next_node = ~0; + dpo_lock (dpo); + + return HICN_ERROR_NONE; +} + + +/** + * @brief Retrieve, or create if it doesn't exist, a face from the ip6 local + * address and returns its dpo. This method adds a lock on the face state. + * + * @param dpo: Result of the lookup + * @param is_appface: Boolean that indicates whether the face is an application + * face or not + * @param local_addr: Ip v4 local address of the face + * @param remote_addr: Ip v4 remote address of the face + * @param sw_if: software interface id of the face + * @param node_index: vlib edge index to use in the packet processing + */ +always_inline void +hicn_dpo_ip4_add_and_lock_from_remote (dpo_id_t * dpo, + u8 * is_appface, + const ip4_address_t * local_addr, + const ip4_address_t * remote_addr, + u32 sw_if, u32 node_index) +{ + /*All (complete) faces are indexed by remote addess as well */ + hicn_face_t *face = + hicn_face_ip4_get (remote_addr, sw_if, &hicn_face_ip_remote_hashtb); + + if (face == NULL) + { + hicn_face_id_t dpoi_index; + ip46_address_t local_addr46 = to_ip46 (0, (u8 *) local_addr); + ip46_address_t remote_addr46 = to_ip46 (0, (u8 *) remote_addr); + hicn_iface_ip_add (&local_addr46, &remote_addr46, sw_if, &dpoi_index); + + *is_appface = 0; + + dpo_set (dpo, hicn_face_ip_type, DPO_PROTO_IP4, dpoi_index); + dpo->dpoi_next_node = node_index; + dpo_lock (dpo); + + return; + } + + /* Code replicated on purpose */ + *is_appface = face->shared.flags & HICN_FACE_FLAGS_APPFACE_PROD; + + hicn_face_id_t dpoi_index = hicn_dpoi_get_index (face); + dpo_set (dpo, hicn_face_ip_type, DPO_PROTO_IP4, dpoi_index); + dpo->dpoi_next_node = node_index; + dpo_lock (dpo); +} + +/** + * @brief Retrieve, or create if it doesn't exist, a face from the ip6 local + * address and returns its dpo. This method adds a lock on the face state. + * + * @param dpo: Result of the lookup + * @param is_appface: Boolean that indicates whether the face is an application + * face or not + * @param local_addr: Ip v6 local address of the face + * @param remote_addr: Ip v6 remote address of the face + * @param sw_if: software interface id of the face + * @param node_index: vlib edge index to use in the packet processing + */ +always_inline void +hicn_dpo_ip6_add_and_lock_from_remote (dpo_id_t * dpo, + u8 * is_appface, + const ip6_address_t * local_addr, + const ip6_address_t * remote_addr, + u32 sw_if, u32 node_index) +{ + /*All (complete) faces are indexed by remote addess as well */ + hicn_face_t *face = + hicn_face_ip6_get (remote_addr, sw_if, &hicn_face_ip_remote_hashtb); + + if (face == NULL) + { + hicn_face_id_t dpoi_index; + hicn_iface_ip_add ((ip46_address_t *) local_addr, + (ip46_address_t *) remote_addr, sw_if, &dpoi_index); + + *is_appface = 0; + + dpo_set (dpo, hicn_face_ip_type, DPO_PROTO_IP4, dpoi_index); + dpo->dpoi_next_node = node_index; + dpo_lock (dpo); + + return; + } + /* Code replicated on purpose */ + *is_appface = face->shared.flags & HICN_FACE_FLAGS_APPFACE_PROD; + + index_t dpoi_index = hicn_dpoi_get_index (face); + dpo_set (dpo, hicn_face_ip_type, DPO_PROTO_IP6, dpoi_index); + dpo->dpoi_next_node = node_index; + dpo_lock (dpo); +} + + +/** + * @brief Create an ip face and its corresponding dpo. Meant to be used for the + * control plane. + * + * @param dpo: Data plane object that point to the face created. + * @param local_addr: Ip v4 local address of the face + * @param remote_addr: Ip v4 remote address of the face + * @param sw_if: software interface id of the face + * @param adj: Ip adjacency corresponding to the remote address in the face + * @param node_index: vlib edge index to use in the packet processing + * @param flags: Flags of the face + * @param face_id: Identifier for the face (dpoi_index) + * @return HICN_ERROR_FACE_ALREADY_CREATED if the face exists, otherwise HICN_ERROR_NONE + */ +int hicn_dpo_ip4_create (dpo_id_t * dpo, + const ip4_address_t * local_addr, + const ip4_address_t * remote_addr, + u32 sw_if, + adj_index_t adj, + u32 node_index, + hicn_face_flags_t flags, hicn_face_id_t * face_id); + +/** + * @brief Create an ip face and its corresponding dpo. Meant to be used for the + * control plane. + * + * @param dpo: Data plane object that point to the face created. + * @param local_addr: Ip v6 local address of the face + * @param remote_addr: Ip v6 remote address of the face + * @param sw_if: software interface id of the face + * @param adj: Ip adjacency corresponding to the remote address in the face + * @param node_index: vlib edge index to use in the packet processing + * @param flags: Flags of the face + * @param face_id: Identifier for the face (dpoi_index) + * @return HICN_ERROR_FACE_ALREADY_CREATED if the face exists, otherwise HICN_ERROR_NONE + */ +int hicn_dpo_ip6_create (dpo_id_t * dpo, + const ip6_address_t * local_addr, + const ip6_address_t * remote_addr, + u32 sw_if, + adj_index_t adj, + u32 node_index, + hicn_face_flags_t flags, hicn_face_id_t * face_id); + +/** + * @brief Create a dpo from an ip face + * + * @param face Face from which to create the dpo + * @param dpoi_next_node Edge index that connects a node to the iface or face nodes + * @return the dpo + */ +void hicn_dpo_ip_create_from_face (hicn_face_t * face, dpo_id_t * dpo, + u16 dpoi_next_node); + +#endif // __HICN_DPO_IP_H__ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/ip/face_ip.c b/hicn-plugin/src/faces/ip/face_ip.c new file mode 100755 index 000000000..c7f6a1ba1 --- /dev/null +++ b/hicn-plugin/src/faces/ip/face_ip.c @@ -0,0 +1,326 @@ +/* + * Copyright (c) 2017-2019 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 "face_ip.h" +#include "face_ip_node.h" +#include "dpo_ip.h" +#include "../../strategy_dpo_manager.h" +#include "../face.h" +#include "../../cache_policies/cs_lru.h" +#include "../../infra.h" +#include "../../hicn.h" +#include "../app/face_prod.h" +#include "../app/face_cons.h" + +#include "../../mapme.h" // HICN_MAPME_EVENT_* +#include "../../mapme_eventmgr.h" // hicn_mapme_eventmgr_process_node + +extern vlib_node_registration_t hicn_mapme_eventmgr_process_node; + +u32 strategy_face_ip4_vlib_edge; +u32 strategy_face_ip6_vlib_edge; + +void +hicn_face_ip_init (vlib_main_t * vm) +{ + int strategy_nodes_n = hicn_strategy_get_all_available (); + + /* Default Strategy has index 0 and it always exists */ + strategy_face_ip4_vlib_edge = vlib_node_add_next (vm, + hicn_dpo_get_strategy_vft + (default_dpo. + hicn_dpo_get_type ())-> + get_strategy_node_index + (), + hicn_face_ip4_output_node. + index); + + strategy_face_ip6_vlib_edge = vlib_node_add_next (vm, + hicn_dpo_get_strategy_vft + (default_dpo. + hicn_dpo_get_type ())-> + get_strategy_node_index + (), + hicn_face_ip6_output_node. + index); + /* + * Create and edge between al the other strategy nodes + * and the ip_encap nodes. + */ + for (int i = 1; i < strategy_nodes_n; i++) + { + u32 temp_index4 = vlib_node_add_next (vm, + hicn_dpo_get_strategy_vft_from_id + (i)->get_strategy_node_index (), + hicn_face_ip4_output_node.index); + u32 temp_index6 = vlib_node_add_next (vm, + hicn_dpo_get_strategy_vft_from_id + (i)->get_strategy_node_index (), + hicn_face_ip6_output_node.index); + ASSERT (temp_index4 == strategy_face_ip4_vlib_edge); + ASSERT (temp_index6 == strategy_face_ip6_vlib_edge); + } + + hicn_dpo_ip_module_init (); + + register_face_type (hicn_face_ip_type, &ip_vft, "ip"); +} + +int +hicn_face_ip_del (hicn_face_id_t face_id) +{ + hicn_face_t *face = hicn_dpoi_get_from_idx (face_id); + hicn_face_ip_t *face_ip = (hicn_face_ip_t *) face->data; + hicn_face_ip_key_t key; + hicn_face_ip_key_t old_key; + + if (ip46_address_is_ip4 (&face_ip->local_addr)) + { + hicn_face_ip4_get_key (&(face_ip->local_addr.ip4), face->shared.sw_if, + &key); + mhash_unset (&hicn_face_ip_local_hashtb, &key, (uword *) & old_key); + hicn_face_ip4_get_key (&(face_ip->remote_addr.ip4), face->shared.sw_if, + &key); + mhash_unset (&hicn_face_ip_remote_hashtb, &key, (uword *) & old_key); + } + else + { + hicn_face_ip6_get_key (&(face_ip->local_addr.ip6), face->shared.sw_if, + &key); + mhash_unset (&hicn_face_ip_local_hashtb, &key, (uword *) & old_key); + hicn_face_ip6_get_key (&(face_ip->remote_addr.ip6), face->shared.sw_if, + &key); + mhash_unset (&hicn_face_ip_remote_hashtb, &key, (uword *) & old_key); + } + return hicn_face_del (face_id); +} + + +/* + * Utility that adds a new face cache entry. For the moment we assume that the + * ip_adjacency has already been set up. + */ +int +hicn_face_ip_add (const ip46_address_t * local_addr, + const ip46_address_t * remote_addr, + int sw_if, hicn_face_id_t * pfaceid) +{ + fib_protocol_t fib_type; + vnet_link_t link_type; + adj_index_t adj; + dpo_proto_t dpo_proto; + + /* Check if we found at least one ip address */ + if (ip46_address_is_zero (local_addr) || ip46_address_is_zero (remote_addr)) + return HICN_ERROR_FACE_NO_GLOBAL_IP; + + if (ip46_address_is_ip4 (local_addr) && ip46_address_is_ip4 (remote_addr)) + { + link_type = VNET_LINK_IP4; + fib_type = FIB_PROTOCOL_IP4; + } + else + { + link_type = VNET_LINK_IP6; + fib_type = FIB_PROTOCOL_IP6; + } + + + adj = adj_nbr_add_or_lock (fib_type, link_type, remote_addr, sw_if); + + hicn_face_flags_t flags = (hicn_face_flags_t) 0; + flags |= HICN_FACE_FLAGS_FACE; + + hicn_face_t *face; + if (ip46_address_is_ip4 (local_addr)) + { + face = + hicn_face_ip4_get (&(local_addr->ip4), sw_if, + &hicn_face_ip_local_hashtb); + + if (face != NULL) + return HICN_ERROR_FACE_ALREADY_CREATED; + + face = + hicn_face_ip4_get (&(remote_addr->ip4), sw_if, + &hicn_face_ip_remote_hashtb); + + /* If remote matches the face is a iface */ + if (face == NULL) + { + hicn_iface_ip_add (local_addr, remote_addr, sw_if, pfaceid); + face = hicn_dpoi_get_from_idx (*pfaceid); + } + else + { + *pfaceid = hicn_dpoi_get_index (face); + } + + hicn_face_ip_key_t key; + hicn_face_ip4_get_key (&(local_addr->ip4), sw_if, &key); + + mhash_set_mem (&hicn_face_ip_local_hashtb, &key, (uword *) pfaceid, 0); + + hicn_face_ip_t *ip_face = (hicn_face_ip_t *) face->data; + clib_memcpy (&ip_face->local_addr, local_addr, sizeof (ip4_address_t)); + clib_memcpy (&ip_face->remote_addr, remote_addr, + sizeof (ip4_address_t)); + face->shared.sw_if = sw_if; + face->shared.flags = flags; + face->shared.adj = adj; + + dpo_proto = DPO_PROTO_IP4; + } + else + { + face = + hicn_face_ip6_get (&(local_addr->ip6), sw_if, + &hicn_face_ip_local_hashtb); + + if (face != NULL) + return HICN_ERROR_FACE_ALREADY_CREATED; + + face = + hicn_face_ip6_get (&(remote_addr->ip6), sw_if, + &hicn_face_ip_remote_hashtb); + + /* If remote matches the face is a iface */ + if (face == NULL) + { + hicn_iface_ip_add (local_addr, remote_addr, sw_if, pfaceid); + face = hicn_dpoi_get_from_idx (*pfaceid); + } + else + { + *pfaceid = hicn_dpoi_get_index (face); + } + + hicn_face_ip_key_t key; + hicn_face_ip6_get_key (&(local_addr->ip6), sw_if, &key); + + mhash_set_mem (&hicn_face_ip_local_hashtb, &key, (uword *) pfaceid, 0); + + hicn_face_ip_t *ip_face = (hicn_face_ip_t *) face->data; + clib_memcpy (&ip_face->local_addr, local_addr, sizeof (ip6_address_t)); + clib_memcpy (&ip_face->remote_addr, remote_addr, + sizeof (ip6_address_t)); + face->shared.sw_if = sw_if; + face->shared.flags = flags; + face->shared.adj = adj; + + dpo_proto = DPO_PROTO_IP6; + } + + retx_t *retx = vlib_process_signal_event_data (vlib_get_main (), + hicn_mapme_eventmgr_process_node. + index, + HICN_MAPME_EVENT_FACE_ADD, 1, + sizeof (retx_t)); + *retx = (retx_t) + { + .prefix = 0,.dpo = (dpo_id_t) + { + .dpoi_type = hicn_face_ip_type,.dpoi_proto = dpo_proto,.dpoi_next_node = + 0,.dpoi_index = *pfaceid,} + }; + + return HICN_ERROR_NONE; +} + +u8 * +format_hicn_face_ip (u8 * s, va_list * args) +{ + index_t index = va_arg (*args, index_t); + CLIB_UNUSED (u32 indent) = va_arg (*args, u32); + hicn_face_t *face; + hicn_face_ip_t *ip_face; + ip_adjacency_t *adj; + vnet_main_t *vnm = vnet_get_main (); + + face = hicn_dpoi_get_from_idx (index); + ip_face = (hicn_face_ip_t *) face->data; + + if (face->shared.flags & HICN_FACE_FLAGS_FACE) + { + ASSERT (face->shared.adj != (adj_index_t) ~ 0); + adj = adj_get (face->shared.adj); + + hicn_face_id_t face_id = hicn_dpoi_get_index (face); + s = format (s, "%U Face %d: ", format_white_space, indent, face_id); + s = format (s, "type IP local %U ", + format_ip46_address, &ip_face->local_addr, IP46_TYPE_ANY); + s = + format (s, "remote %U ", format_ip46_address, &ip_face->remote_addr, + IP46_TYPE_ANY); + s = format (s, "%U", format_vnet_link, adj->ia_link); + s = format (s, " dev %U", format_vnet_sw_interface_name, vnm, + vnet_get_sw_interface (vnm, face->shared.sw_if)); + + if ((face->shared.flags & HICN_FACE_FLAGS_APPFACE_PROD)) + s = format (s, " %U", format_hicn_face_prod, face_id, 0); + else if ((face->shared.flags & HICN_FACE_FLAGS_APPFACE_CONS)) + s = format (s, " %U", format_hicn_face_cons, face_id, 0); + + if ((face->shared.flags & HICN_FACE_FLAGS_DELETED)) + s = format (s, " (deleted)"); + } + else + { + hicn_face_id_t face_id = hicn_dpoi_get_index (face); + s = format (s, "%U iFace %d: ", format_white_space, indent, face_id); + s = format (s, "type IP local %U remote %U", + format_ip46_address, &ip_face->local_addr, IP46_TYPE_ANY, + format_ip46_address, &ip_face->remote_addr, IP46_TYPE_ANY); + s = + format (s, " dev %U", format_vnet_sw_interface_name, vnm, + vnet_get_sw_interface (vnm, face->shared.sw_if)); + + if ((face->shared.flags & HICN_FACE_FLAGS_APPFACE_PROD)) + s = format (s, " %U", format_hicn_face_prod, face_id, 0); + else if ((face->shared.flags & HICN_FACE_FLAGS_APPFACE_CONS)) + s = format (s, " %U", format_hicn_face_cons, face_id, 0); + + if ((face->shared.flags & HICN_FACE_FLAGS_DELETED)) + s = format (s, " (deleted)"); + } + + return s; +} + +void +hicn_face_ip_get_dpo (hicn_face_t * face, dpo_id_t * dpo) +{ + + hicn_face_ip_t *face_ip = (hicn_face_ip_t *) face->data; + return hicn_dpo_ip_create_from_face (face, dpo, + ip46_address_is_ip4 (&face_ip-> + remote_addr) ? + strategy_face_ip4_vlib_edge : + strategy_face_ip6_vlib_edge); +} + +hicn_face_vft_t ip_vft = { + .format_face = format_hicn_face_ip, + .hicn_face_del = hicn_face_ip_del, + .hicn_face_get_dpo = hicn_face_ip_get_dpo, +}; + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/ip/face_ip.h b/hicn-plugin/src/faces/ip/face_ip.h new file mode 100755 index 000000000..8c31f6dd3 --- /dev/null +++ b/hicn-plugin/src/faces/ip/face_ip.h @@ -0,0 +1,241 @@ +/* + * Copyright (c) 2017-2019 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 __HICN_FACE_IP_H__ +#define __HICN_FACE_IP_H__ + +#include <vlib/vlib.h> +#include <vnet/vnet.h> +#include "../face.h" +#include "../../cache_policies/cs_policy.h" + +/** + * @file + * + * @brief IP face + * + * A face is carried through nodes as a dpo. The face state is the object + * pointed by the dpoi_index in the dpo_id_t (see + * https://docs.fd.io/vpp/18.07/d0/d37/dpo_8h_source.html) + */ +typedef struct hicn_ip_face_t_ +{ + /** + * The headers to paint, in packet painting order + */ + /* Local address of the interface sw_if */ + ip46_address_t local_addr; + + /* Remote address of neighbor */ + ip46_address_t remote_addr; + +} hicn_face_ip_t; + + +/** + * Hash tables that indexes a face by local address. For fast lookup when an + * data arrives. + */ +extern mhash_t hicn_face_ip_local_hashtb; + +/** + * Hash tables that indexes a face by remote address. For fast lookup when an + * interest arrives. + */ +extern mhash_t hicn_face_ip_remote_hashtb; + +/** + * Key definition for the mhash table. An ip face is uniquely identified by ip + * address and the interface id. The ip address can correspond to the remote ip + * address of the next hicn hop, or to the local address of the receiving + * interface. The former is used to retrieve the incoming face when an interest + * is received, the latter when the arring packet is a data. + */ +typedef struct hicn_face_ip_key_s +{ + ip46_address_t addr; + u32 sw_if; +} hicn_face_ip_key_t; + + +extern hicn_face_type_t hicn_face_ip_type; +extern hicn_face_vft_t ip_vft; + +/** + * @brief Create the key object for the mhash. Fill in the key object with the + * expected values. + * + * @param addr Local or remote ip v6 address of the face + * @param sw_if interface associated to the face + * @param key Pointer to an allocated hicn_face_ip_key_t object + */ +always_inline void +hicn_face_ip6_get_key (const ip6_address_t * addr, + u32 sw_if, hicn_face_ip_key_t * key) +{ + key->addr.ip6 = *addr; + key->sw_if = sw_if; +} + + +/** + * @brief Create the key object for the mhash. Fill in the key object with the + * expected values. + * + * @param addr Local or remote ip v4 address of the face + * @param sw_if interface associated to the face + * @param key Pointer to an allocated hicn_face_ip_key_t object + */ +always_inline void +hicn_face_ip4_get_key (const ip4_address_t * addr, + u32 sw_if, hicn_face_ip_key_t * key) +{ + ip46_address_set_ip4 (&(key->addr), addr); + key->sw_if = sw_if; +} + +/** + * @brief Get the dpoi from the ip v4 address. Does not add any lock. + * + * @param addr Ip v4 address used to create the key for the hash table. + * @param sw_if Software interface id used to create the key for the hash table. + * @param hashtb Hash table (remote or local) where to perform the lookup. + * + * @result Pointer to the face. + */ +always_inline hicn_face_t * +hicn_face_ip4_get (const ip4_address_t * addr, u32 sw_if, mhash_t * hashtb) +{ + hicn_face_ip_key_t key; + + hicn_face_ip4_get_key (addr, sw_if, &key); + + hicn_face_id_t *dpoi_index = (hicn_face_id_t *) mhash_get (hashtb, + &key); + + return dpoi_index == NULL ? NULL : hicn_dpoi_get_from_idx (*dpoi_index); +} + +/** + * @brief Get the dpoi from the ip v6 address. Does not add any lock. + * + * @param addr Ip v6 address used to create the key for the hash table. + * @param sw_if Software interface id used to create the key for the hash table. + * @param hashtb Hash table (remote or local) where to perform the lookup. + * + * @result Pointer to the face. + */ +always_inline hicn_face_t * +hicn_face_ip6_get (const ip6_address_t * addr, u32 sw_if, mhash_t * hashtb) +{ + hicn_face_ip_key_t key; + + hicn_face_ip6_get_key (addr, sw_if, &key); + + hicn_face_id_t *dpoi_index = (hicn_face_id_t *) mhash_get (hashtb, + &key); + + return dpoi_index == NULL ? NULL : hicn_dpoi_get_from_idx (*dpoi_index); +} + +/** + * @brief Create a new face ip. API for other modules (e.g., routing) + * + * @param local_addr Local ip v4 or v6 address of the face + * @param remote_addr Remote ip v4 or v6 address of the face + * @param sw_if interface associated to the face + * @param is_app_face Boolean to set the face as an application face + * @param pfaceid Pointer to return the face id + * @return HICN_ERROR_FACE_NO_GLOBAL_IP if the face does not have a globally + * reachable ip address, otherwise HICN_ERROR_NONE + */ +int hicn_face_ip_add (const ip46_address_t * local_addr, + const ip46_address_t * remote_addr, + int swif, hicn_face_id_t * pfaceid); + +/** + * @brief Create a new incomplete face ip. (Meant to be used by the data plane) + * + * @param local_addr Local ip v4 or v6 address of the face + * @param remote_addr Remote ip v4 or v6 address of the face + * @param sw_if interface associated to the face + * @param pfaceid Pointer to return the face id + * @return HICN_ERROR_FACE_NO_GLOBAL_IP if the face does not have a globally + * reachable ip address, otherwise HICN_ERROR_NONE + */ +always_inline void +hicn_iface_ip_add (const ip46_address_t * local_addr, + const ip46_address_t * remote_addr, + int sw_if, hicn_face_id_t * pfaceid) +{ + hicn_face_t *face; + pool_get (hicn_dpoi_face_pool, face); + + hicn_face_ip_t *ip_face = (hicn_face_ip_t *) (face->data); + + clib_memcpy (&(ip_face->local_addr.ip6), local_addr, + sizeof (ip6_address_t)); + clib_memcpy (&(ip_face->remote_addr.ip6), remote_addr, + sizeof (ip6_address_t)); + face->shared.sw_if = sw_if; + + face->shared.adj = ADJ_INDEX_INVALID; + face->shared.pl_id = (u16) 0; + face->shared.face_type = hicn_face_ip_type; + face->shared.flags = HICN_FACE_FLAGS_IFACE; + face->shared.locks = 0; + + hicn_face_ip_key_t key; + hicn_face_ip6_get_key (&(remote_addr->ip6), sw_if, &key); + *pfaceid = hicn_dpoi_get_index (face); + + mhash_set_mem (&hicn_face_ip_remote_hashtb, &key, (uword *) pfaceid, 0); +} + +/** + * @brief Delete an ip face + * + * @param face_id Id of the face to delete + * @return HICN_ERROR_FACE_NOT_FOUND if the face does not exist, otherwise + * HICN_ERROR_NONE + */ +int hicn_face_ip_del (hicn_face_id_t face_id); + +/** + * @brief Format a IP face + * + * @param s Pointer to a previous string. If null it will be initialize + * @param args Array storing input values. Expected u32 face_id and u32 indent + * @return String with the formatted face + */ +u8 *format_hicn_face_ip (u8 * s, va_list * args); + +/** + * @brief Create a dpo from an ip face + * + * @param face Face from which to create the dpo + * @return the dpo + */ +void hicn_face_ip_get_dpo (hicn_face_t * face, dpo_id_t * dpo); + +#endif // __HICN_FACE_IP_H__ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/ip/face_ip_cli.c b/hicn-plugin/src/faces/ip/face_ip_cli.c new file mode 100755 index 000000000..1558c82cb --- /dev/null +++ b/hicn-plugin/src/faces/ip/face_ip_cli.c @@ -0,0 +1,158 @@ +/* + * Copyright (c) 2017-2019 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/vnet.h> +#include <vnet/dpo/dpo.h> +#include <vlib/vlib.h> + +#include "face_ip.h" +#include "dpo_ip.h" +#include "../face.h" + +#define HICN_FACE_NONE 0 +#define HICN_FACE_DELETE 1 +#define HICN_FACE_ADD 2 + +static clib_error_t * +hicn_face_ip_cli_set_command_fn (vlib_main_t * vm, + unformat_input_t * main_input, + vlib_cli_command_t * cmd) +{ + vnet_main_t *vnm = vnet_get_main (); + ip46_address_t local_addr; + ip46_address_t remote_addr; + hicn_face_id_t face_id = HICN_FACE_NULL; + int app_face = 0; + u32 cs_reserved = HICN_PARAM_FACE_DFT_CS_RESERVED; + int ret = HICN_ERROR_NONE; + int sw_if; + int face_op = HICN_FACE_NONE; + + ip46_address_reset (&local_addr); + /* Get a line of input. */ + unformat_input_t _line_input, *line_input = &_line_input; + if (!unformat_user (main_input, unformat_line_input, line_input)) + { + return (0); + } + + while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (line_input, "del")) + { + if (unformat (line_input, "id %d", &face_id)) + face_op = HICN_FACE_DELETE; + else + { + return clib_error_return (0, "missing face id"); + } + } + else if (unformat (line_input, "add")) + { + face_op = HICN_FACE_ADD; + if (unformat (line_input, "local %U remote %U intfc %U", + unformat_ip46_address, &local_addr, IP46_TYPE_ANY, + unformat_ip46_address, &remote_addr, IP46_TYPE_ANY, + unformat_vnet_sw_interface, vnm, &sw_if)); + else + { + return clib_error_return (0, "%s '%U'", + get_error_string + (HICN_ERROR_CLI_INVAL), + format_unformat_error, line_input); + } + } + else if (unformat (line_input, "app_face %d", &app_face)) + { + if (unformat (line_input, "cs_size %d", &cs_reserved)); + } + else + { + return clib_error_return (0, "%s '%U'", + get_error_string (HICN_ERROR_CLI_INVAL), + format_unformat_error, line_input); + } + } + + if (face_id != HICN_FACE_NULL) + { + + if (!hicn_dpoi_idx_is_valid (face_id)) + { + return clib_error_return (0, "%s, face_id %d not valid", + get_error_string (ret), face_id); + } + } + + int rv; + switch (face_op) + { + case HICN_FACE_ADD: + + /* Check for presence of next hop address */ + if ((remote_addr.as_u64[0] == (u64) 0) + && (remote_addr.as_u64[1] == (u64) 0)) + { + return clib_error_return (0, "next hop address not specified"); + } + + rv = hicn_face_ip_add (&local_addr, &remote_addr, sw_if, &face_id); + + if (rv == HICN_ERROR_NONE) + { + vlib_cli_output (vm, "Face id: %d", face_id); + } + else + { + return clib_error_return (0, get_error_string (rv)); + } + break; + case HICN_FACE_DELETE: + rv = hicn_face_ip_del (face_id); + if (rv == HICN_ERROR_NONE) + { + vlib_cli_output (vm, "Face %d deleted", face_id); + } + else + { + return clib_error_return (0, get_error_string (rv)); + } + break; + default: + return clib_error_return (0, "Operation (%d) not implemented", face_op); + break; + } + return (rv == HICN_ERROR_NONE) ? 0 : clib_error_return (0, "%s\n", + get_error_string + (rv)); +} + +/* cli declaration for 'cfg face' */ +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (hicn_face_ip_cli_set_command, static) = +{ + .path = "hicn face ip", + .short_help = "hicn face ip {add local <local_address> remote <remote_address> intfc <sw_if>} {app_face <0/1>} {cs_size <size_in_packets>} | {del id <face_id>}", + .function = hicn_face_ip_cli_set_command_fn, +}; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/ip/face_ip_node.c b/hicn-plugin/src/faces/ip/face_ip_node.c new file mode 100755 index 000000000..6081e4737 --- /dev/null +++ b/hicn-plugin/src/faces/ip/face_ip_node.c @@ -0,0 +1,761 @@ +/* + * Copyright (c) 2017-2019 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/adj/adj.h> + +#include "face_ip.h" +#include "face_ip_node.h" +#include "dpo_ip.h" +#include "../../strategy_dpo_manager.h" +#include "../face.h" +#include "../../cache_policies/cs_lru.h" +#include "../../infra.h" +#include "../../hicn.h" + +/** + * @File + * + * Definition of the nodes for ip incomplete faces. + */ + +vlib_node_registration_t hicn_face_ip4_input_node; +vlib_node_registration_t hicn_face_ip4_output_node; +vlib_node_registration_t hicn_face_ip6_input_node; +vlib_node_registration_t hicn_face_ip6_output_node; + +#define ip_v4 4 +#define ip_v6 6 + +static char *hicn_face_ip4_input_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + +static char *hicn_face_ip6_input_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; +} hicn_face_ip4_input_trace_t; + +typedef enum +{ + HICN_FACE_IP4_INPUT_NEXT_DATA, + HICN_FACE_IP4_INPUT_NEXT_MAPME, + HICN_FACE_IP4_INPUT_NEXT_ERROR_DROP, + HICN_FACE_IP4_INPUT_N_NEXT, +} hicn_face_ip4_input_next_t; + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; +} hicn_face_ip6_input_trace_t; + +typedef enum +{ + HICN_FACE_IP6_INPUT_NEXT_DATA, + HICN_FACE_IP6_INPUT_NEXT_MAPME, + HICN_FACE_IP6_INPUT_NEXT_ERROR_DROP, + HICN_FACE_IP6_INPUT_N_NEXT, +} hicn_face_ip6_input_next_t; + +#define NEXT_MAPME_IP4 HICN_FACE_IP4_INPUT_NEXT_MAPME +#define NEXT_MAPME_IP6 HICN_FACE_IP6_INPUT_NEXT_MAPME +#define NEXT_DATA_IP4 HICN_FACE_IP4_INPUT_NEXT_DATA +#define NEXT_DATA_IP6 HICN_FACE_IP6_INPUT_NEXT_DATA + +#define NEXT_ERROR_DROP_IP4 HICN_FACE_IP4_INPUT_NEXT_ERROR_DROP +#define NEXT_ERROR_DROP_IP6 HICN_FACE_IP6_INPUT_NEXT_ERROR_DROP + +#define IP_HEADER_4 ip4_header_t +#define IP_HEADER_6 ip6_header_t + +#define LOCK_FROM_LOCAL_IP4 hicn_dpo_ip4_lock_from_local +#define LOCK_FROM_LOCAL_IP6 hicn_dpo_ip6_lock_from_local + +#define TRACE_INPUT_PKT_IP4 hicn_face_ip4_input_trace_t +#define TRACE_INPUT_PKT_IP6 hicn_face_ip6_input_trace_t + +/* + * NOTE: Both hicn_face_ip4_input_node_fn and hicn_face_ip6_input_node_fn + * present a similar codebase. Macro are hard to debug, although the + * followind code is pretty straighforward and most of the complexity is in + * functions that can be easily debug. + */ +#define face_input_x1(ipv) \ + do{ \ + vlib_buffer_t *b0; \ + u32 bi0; \ + u32 next0 = NEXT_ERROR_DROP_IP##ipv; \ + IP_HEADER_##ipv * ip_hdr = NULL; \ + hicn_buffer_t * hicnb0; \ + int ret; \ + /* Prefetch for next iteration. */ \ + if (n_left_from > 1) \ + { \ + vlib_buffer_t *b1; \ + b1 = vlib_get_buffer (vm, from[1]); \ + CLIB_PREFETCH (b1, 2*CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b1->data, CLIB_CACHE_LINE_BYTES , LOAD); \ + } \ + /* Dequeue a packet buffer */ \ + bi0 = from[0]; \ + from += 1; \ + n_left_from -= 1; \ + to_next[0] = bi0; \ + to_next += 1; \ + n_left_to_next -= 1; \ + \ + b0 = vlib_get_buffer (vm, bi0); \ + hicnb0 = hicn_get_buffer(b0); \ + ip_hdr = (IP_HEADER_##ipv *) vlib_buffer_get_current(b0); \ + \ + u8 is_icmp = ip_hdr->protocol == IPPROTO_ICMPV##ipv; \ + \ + next0 = is_icmp*NEXT_MAPME_IP##ipv + \ + (1-is_icmp)*NEXT_DATA_IP##ipv; \ + \ + ret = LOCK_FROM_LOCAL_IP##ipv \ + (&(hicnb0->face_dpo_id), \ + &hicnb0->is_appface, \ + &(ip_hdr->dst_address), \ + vnet_buffer (b0)->sw_if_index[VLIB_RX]); \ + \ + if ( PREDICT_FALSE(ret != HICN_ERROR_NONE) ) \ + next0 = NEXT_ERROR_DROP_IP##ipv; \ + else \ + stats.pkts_data_count += 1; \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b0->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_INPUT_PKT_IP##ipv *t = \ + vlib_add_trace (vm, node, b0, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_INTEREST; \ + t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; \ + t->next_index = next0; \ + } \ + \ + \ + /* 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); \ + }while(0) + + +#define face_input_x2(ipv) \ + do{ \ + vlib_buffer_t *b0, *b1; \ + u32 bi0, bi1; \ + u32 next0 = NEXT_ERROR_DROP_IP##ipv; \ + u32 next1 = NEXT_ERROR_DROP_IP##ipv; \ + IP_HEADER_##ipv * ip_hdr0 = NULL; \ + IP_HEADER_##ipv * ip_hdr1 = NULL; \ + hicn_buffer_t * hicnb0; \ + hicn_buffer_t * hicnb1; \ + int ret0, ret1; \ + /* Prefetch for next iteration. */ \ + { \ + vlib_buffer_t *b2, *b3; \ + b2 = vlib_get_buffer (vm, from[2]); \ + b3 = vlib_get_buffer (vm, from[3]); \ + CLIB_PREFETCH (b2, 2*CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b3, 2*CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b2->data, CLIB_CACHE_LINE_BYTES , LOAD); \ + CLIB_PREFETCH (b3->data, CLIB_CACHE_LINE_BYTES , LOAD); \ + } \ + /* Dequeue a packet buffer */ \ + bi0 = from[0]; \ + bi1 = from[1]; \ + from += 2; \ + n_left_from -= 2; \ + to_next[0] = bi0; \ + to_next[1] = bi1; \ + to_next += 2; \ + n_left_to_next -= 2; \ + \ + b0 = vlib_get_buffer (vm, bi0); \ + b1 = vlib_get_buffer (vm, bi1); \ + hicnb0 = hicn_get_buffer(b0); \ + hicnb1 = hicn_get_buffer(b1); \ + ip_hdr0 = (IP_HEADER_##ipv *) vlib_buffer_get_current(b0); \ + ip_hdr1 = (IP_HEADER_##ipv *) vlib_buffer_get_current(b1); \ + \ + u8 is_icmp0 = ip_hdr0->protocol == IPPROTO_ICMPV##ipv; \ + u8 is_icmp1 = ip_hdr1->protocol == IPPROTO_ICMPV##ipv; \ + \ + next0 = is_icmp0*NEXT_MAPME_IP##ipv + \ + (1-is_icmp0)*NEXT_DATA_IP##ipv; \ + \ + next1 = is_icmp1*NEXT_MAPME_IP##ipv + \ + (1-is_icmp1)*NEXT_DATA_IP##ipv; \ + \ + \ + ret0 = LOCK_FROM_LOCAL_IP##ipv \ + (&(hicnb0->face_dpo_id), \ + &hicnb0->is_appface, \ + &(ip_hdr0->dst_address), \ + vnet_buffer (b0)->sw_if_index[VLIB_RX]); \ + \ + ret1 = LOCK_FROM_LOCAL_IP##ipv \ + (&(hicnb1->face_dpo_id), \ + &hicnb1->is_appface, \ + &(ip_hdr1->dst_address), \ + vnet_buffer (b1)->sw_if_index[VLIB_RX]); \ + \ + if ( PREDICT_FALSE(ret0 != HICN_ERROR_NONE) ) \ + next0 = NEXT_ERROR_DROP_IP##ipv; \ + else \ + stats.pkts_data_count += 1; \ + \ + if ( PREDICT_FALSE(ret1 != HICN_ERROR_NONE) ) \ + next1 = NEXT_ERROR_DROP_IP##ipv; \ + else \ + stats.pkts_data_count += 1; \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b0->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_INPUT_PKT_IP##ipv *t = \ + vlib_add_trace (vm, node, b0, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_INTEREST; \ + t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; \ + t->next_index = next0; \ + } \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b1->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_INPUT_PKT_IP##ipv *t = \ + vlib_add_trace (vm, node, b1, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_INTEREST; \ + t->sw_if_index = vnet_buffer (b1)->sw_if_index[VLIB_RX]; \ + t->next_index = next1; \ + } \ + \ + \ + /* Verify speculative enqueue, maybe switch current next frame */ \ + vlib_validate_buffer_enqueue_x2 (vm, node, next_index, \ + to_next, n_left_to_next, \ + bi0, bi1, next0, next1); \ + }while(0) + + +static uword +hicn_face_ip4_input_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + u32 n_left_from, *from, *to_next, next_index; + + from = vlib_frame_vector_args (frame); + n_left_from = frame->n_vectors; + next_index = node->cached_next_index; + vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; + + while (n_left_from > 0) + { + u32 n_left_to_next; + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + /* Dual loop, X2 */ + while (n_left_from >= 4 && n_left_to_next >= 2) + { + face_input_x2 (4); + } + + /* Dual loop, X1 */ + while (n_left_from > 0 && n_left_to_next > 0) + { + face_input_x1 (4); + } + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + vlib_node_increment_counter (vm, node->node_index, + HICNFWD_ERROR_DATAS, stats.pkts_data_count); + + return (frame->n_vectors); +} + +/* packet trace format function */ +static u8 * +hicn_face_ip4_input_format_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 *); + hicn_face_ip4_input_trace_t *t = + va_arg (*args, hicn_face_ip4_input_trace_t *); + + s = format (s, "FACE_IP4_INPUT: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + + +/* + * Node registration for the interest forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE(hicn_face_ip4_input_node) = +{ + .function = hicn_face_ip4_input_node_fn, + .name = "hicn-face-ip4-input", + .vector_size = sizeof(u32), + .format_trace = hicn_face_ip4_input_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN(hicn_face_ip4_input_error_strings), + .error_strings = hicn_face_ip4_input_error_strings, + .n_next_nodes = HICN_FACE_IP4_INPUT_N_NEXT, + /* edit / add dispositions here */ + .next_nodes = + { + [HICN_FACE_IP4_INPUT_NEXT_DATA] = "hicn-data-pcslookup", + [HICN_FACE_IP4_INPUT_NEXT_MAPME] = "hicn-mapme-ack", + [HICN_FACE_IP4_INPUT_NEXT_ERROR_DROP] = "error-drop", + }, +}; +/* *INDENT-ON* */ + +/** + * @brief IPv6 face input node function + * @see hicn_face_ip4_input_node_fn + */ +static uword +hicn_face_ip6_input_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + u32 n_left_from, *from, *to_next, next_index; + + from = vlib_frame_vector_args (frame); + n_left_from = frame->n_vectors; + next_index = node->cached_next_index; + vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; + + while (n_left_from > 0) + { + u32 n_left_to_next; + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + /* Dual loop, X2 */ + while (n_left_from >= 4 && n_left_to_next >= 2) + { + face_input_x2 (6); + } + + /* Dual loop, X1 */ + while (n_left_from > 0 && n_left_to_next > 0) + { + face_input_x1 (6); + } + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + vlib_node_increment_counter (vm, node->node_index, + HICNFWD_ERROR_DATAS, stats.pkts_data_count); + + return (frame->n_vectors); +} + +/* packet trace format function */ +static u8 * +hicn_face_ip6_input_format_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 *); + hicn_face_ip6_input_trace_t *t = + va_arg (*args, hicn_face_ip6_input_trace_t *); + + s = format (s, "FACE_IP6_INPUT: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + +/* + * Node registration for the interest forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE(hicn_face_ip6_input_node) = +{ + .function = hicn_face_ip6_input_node_fn, + .name = "hicn-face-ip6-input", + .vector_size = sizeof(u32), + .format_trace = hicn_face_ip6_input_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN(hicn_face_ip6_input_error_strings), + .error_strings = hicn_face_ip6_input_error_strings, + .n_next_nodes = HICN_FACE_IP6_INPUT_N_NEXT, + /* edit / add dispositions here */ + .next_nodes = + { + [HICN_FACE_IP6_INPUT_NEXT_DATA] = "hicn-data-pcslookup", + [HICN_FACE_IP6_INPUT_NEXT_MAPME] = "hicn-mapme-ack", + [HICN_FACE_IP6_INPUT_NEXT_ERROR_DROP] = "error-drop", + }, +}; +/* *INDENT-ON* */ + +/**** FACE OUTPUT *****/ + +static inline void +hicn_face_rewrite_interest (vlib_main_t * vm, vlib_buffer_t * b0, + const hicn_face_t * face, u32 * next) +{ + ip_adjacency_t *adj = adj_get (face->shared.adj); + + /* We assume the ip adjacency has already the MAC/link layer address */ + vnet_buffer (b0)->ip.adj_index[VLIB_TX] = face->shared.adj; + hicn_header_t *hicn = vlib_buffer_get_current (b0); + + hicn_face_ip_t *ip_face = (hicn_face_ip_t *) face->data; + + ip46_address_t temp_addr; + ip46_address_reset (&temp_addr); + hicn_type_t type = hicn_get_buffer (b0)->type; + hicn_ops_vft[type.l1]->rewrite_interest (type, &hicn->protocol, + &ip_face->local_addr, &temp_addr); + + /* We rewrite the dst address to send an arp/neighbour discovert request */ + if (PREDICT_FALSE + (adj->lookup_next_index == IP_LOOKUP_NEXT_ARP + || adj->lookup_next_index == IP_LOOKUP_NEXT_GLEAN)) + hicn_ops_vft[type.l1]->rewrite_data (type, &hicn->protocol, + &ip_face->remote_addr, &temp_addr, + 0); + + *next = adj->lookup_next_index; +} + +static char *hicn_face_ip4_output_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + +static char *hicn_face_ip6_output_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; +} hicn_face_ip4_output_trace_t; + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; +} hicn_face_ip6_output_trace_t; + +#define TRACE_OUTPUT_PKT_IP4 hicn_face_ip4_output_trace_t +#define TRACE_OUTPUT_PKT_IP6 hicn_face_ip6_output_trace_t + +#define face_output_x1(ipv) \ + do { \ + vlib_buffer_t *b0; \ + u32 bi0; \ + u32 next0 = IP_LOOKUP_NEXT_DROP; \ + hicn_face_t * face; \ + \ + /* Prefetch for next iteration. */ \ + if (n_left_from > 1) \ + { \ + vlib_buffer_t *b1; \ + b1 = vlib_get_buffer (vm, from[1]); \ + CLIB_PREFETCH (b1, CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b1->data, CLIB_CACHE_LINE_BYTES , STORE); \ + } \ + /* Dequeue a packet buffer */ \ + bi0 = from[0]; \ + from += 1; \ + n_left_from -= 1; \ + to_next[0] = bi0; \ + to_next += 1; \ + n_left_to_next -= 1; \ + \ + b0 = vlib_get_buffer (vm, bi0); \ + \ + face = \ + hicn_dpoi_get_from_idx (vnet_buffer (b0)->ip.adj_index[VLIB_TX]); \ + \ + if (PREDICT_TRUE(face != NULL)) \ + { \ + hicn_face_rewrite_interest \ + (vm, b0, face, &next0); \ + stats.pkts_interest_count += 1; \ + } \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b0->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_OUTPUT_PKT_IP##ipv *t = \ + vlib_add_trace (vm, node, b0, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_INTEREST; \ + t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; \ + t->next_index = next0; \ + } \ + \ + \ + /* 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); \ + }while(0) + +#define face_output_x2(ipv) \ + do { \ + vlib_buffer_t *b0, *b1; \ + u32 bi0, bi1; \ + u32 next0 = IP_LOOKUP_NEXT_DROP; \ + u32 next1 = IP_LOOKUP_NEXT_DROP; \ + hicn_face_t *face0, *face1; \ + \ + /* Prefetch for next iteration. */ \ + { \ + vlib_buffer_t *b2, *b3; \ + b2 = vlib_get_buffer (vm, from[2]); \ + b3 = vlib_get_buffer (vm, from[3]); \ + CLIB_PREFETCH (b2, CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b3, CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b2->data, CLIB_CACHE_LINE_BYTES , STORE); \ + CLIB_PREFETCH (b3->data, CLIB_CACHE_LINE_BYTES , STORE); \ + } \ + /* Dequeue a packet buffer */ \ + bi0 = from[0]; \ + bi1 = from[1]; \ + from += 2; \ + n_left_from -= 2; \ + to_next[0] = bi0; \ + to_next[1] = bi1; \ + to_next += 2; \ + n_left_to_next -= 2; \ + \ + b0 = vlib_get_buffer (vm, bi0); \ + b1 = vlib_get_buffer (vm, bi1); \ + \ + face0 = \ + hicn_dpoi_get_from_idx (vnet_buffer (b0)->ip.adj_index[VLIB_TX]); \ + face1 = \ + hicn_dpoi_get_from_idx (vnet_buffer (b1)->ip.adj_index[VLIB_TX]); \ + \ + if (PREDICT_TRUE(face0 != NULL)) \ + { \ + hicn_face_rewrite_interest \ + (vm, b0, face0, &next0); \ + stats.pkts_interest_count += 1; \ + } \ + \ + if (PREDICT_TRUE(face1 != NULL)) \ + { \ + hicn_face_rewrite_interest \ + (vm, b1, face1, &next1); \ + stats.pkts_interest_count += 1; \ + } \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b0->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_OUTPUT_PKT_IP##ipv *t = \ + vlib_add_trace (vm, node, b0, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_INTEREST; \ + t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; \ + t->next_index = next0; \ + } \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b1->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_OUTPUT_PKT_IP##ipv *t = \ + vlib_add_trace (vm, node, b1, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_INTEREST; \ + t->sw_if_index = vnet_buffer (b1)->sw_if_index[VLIB_RX]; \ + t->next_index = next1; \ + } \ + \ + \ + /* Verify speculative enqueue, maybe switch current next frame */ \ + vlib_validate_buffer_enqueue_x2 (vm, node, next_index, \ + to_next, n_left_to_next, \ + bi0, bi1, next0, next1); \ + }while(0) + + +static uword +hicn_face_ip4_output_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + u32 n_left_from, *from, *to_next, next_index; + vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; + + 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); + + /* Dual loop, X2 */ + while (n_left_from >= 4 && n_left_to_next >= 2) + { + face_output_x2 (4); + } + + /* Dual loop, X1 */ + while (n_left_from > 0 && n_left_to_next > 0) + { + face_output_x1 (4); + } + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + vlib_node_increment_counter (vm, node->node_index, + HICNFWD_ERROR_INTERESTS, + stats.pkts_interest_count); + + return (frame->n_vectors); +} + +/* packet trace format function */ +static u8 * +hicn_face_ip4_output_format_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 *); + hicn_face_ip4_output_trace_t *t = + va_arg (*args, hicn_face_ip4_output_trace_t *); + + s = format (s, "FACE_IP4_OUTPUT: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + +/* + * Node registration for the interest forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE(hicn_face_ip4_output_node) = +{ + .function = hicn_face_ip4_output_node_fn, + .name = "hicn-face-ip4-output", + .vector_size = sizeof(u32), + .format_trace = hicn_face_ip4_output_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN(hicn_face_ip4_output_error_strings), + .error_strings = hicn_face_ip4_output_error_strings, + .n_next_nodes = IP4_LOOKUP_N_NEXT, + /* Reusing the list of nodes from lookup to be compatible with arp */ + .next_nodes = IP4_LOOKUP_NEXT_NODES, +}; +/* *INDENT-ON* */ + + +static uword +hicn_face_ip6_output_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + u32 n_left_from, *from, *to_next, next_index; + vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; + + 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); + + /* Dual loop, X2 */ + while (n_left_from >= 4 && n_left_to_next >= 2) + { + face_output_x2 (6); + } + + /* Dual loop, X1 */ + while (n_left_from > 0 && n_left_to_next > 0) + { + face_output_x1 (6); + } + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + vlib_node_increment_counter (vm, node->node_index, + HICNFWD_ERROR_INTERESTS, + stats.pkts_interest_count); + + return (frame->n_vectors); +} + +/* packet trace format function */ +static u8 * +hicn_face_ip6_output_format_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 *); + hicn_face_ip6_output_trace_t *t = + va_arg (*args, hicn_face_ip6_output_trace_t *); + + s = format (s, "FACE_IP6_OUTPUT: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + +/* + * Node registration for the interest forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE(hicn_face_ip6_output_node) = +{ + .function = hicn_face_ip6_output_node_fn, + .name = "hicn-face-ip6-output", + .vector_size = sizeof(u32), + .format_trace = hicn_face_ip6_output_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN(hicn_face_ip6_output_error_strings), + .error_strings = hicn_face_ip6_output_error_strings, + .n_next_nodes = IP6_LOOKUP_N_NEXT, + /* Reusing the list of nodes from lookup to be compatible with neighbour discovery */ + .next_nodes = IP6_LOOKUP_NEXT_NODES, +}; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/ip/face_ip_node.h b/hicn-plugin/src/faces/ip/face_ip_node.h new file mode 100755 index 000000000..000395a04 --- /dev/null +++ b/hicn-plugin/src/faces/ip/face_ip_node.h @@ -0,0 +1,40 @@ +/* + * Copyright (c) 2017-2019 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 __HICN_FACE_IP_NODE_H__ +#define __HICN_FACE_IP_NODE_H__ + +#include <vlib/vlib.h> +#include <vnet/vnet.h> + +extern vlib_node_registration_t hicn_face_ip4_input_node; +extern vlib_node_registration_t hicn_face_ip4_output_node; +extern vlib_node_registration_t hicn_face_ip6_input_node; +extern vlib_node_registration_t hicn_face_ip6_output_node; + +/** + * @brief Initialize the ip face module + */ +void hicn_face_ip_init (vlib_main_t * vm); + +#endif // __HICN_FACE_IP_NODE_H__ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/ip/iface_ip_node.c b/hicn-plugin/src/faces/ip/iface_ip_node.c new file mode 100755 index 000000000..8df0467f0 --- /dev/null +++ b/hicn-plugin/src/faces/ip/iface_ip_node.c @@ -0,0 +1,845 @@ +/* + * Copyright (c) 2017-2019 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 <hicn/hicn.h> +#include "face_ip.h" +#include "dpo_ip.h" +#include "../../strategy_dpo_manager.h" +#include "../face.h" +#include "../../infra.h" +#include "../../cache_policies/cs_lru.h" + +/** + * @File + * + * Definition of the nodes for ip incomplete faces. + */ + +vlib_node_registration_t hicn_iface_ip4_input_node; +vlib_node_registration_t hicn_iface_ip4_output_node; +vlib_node_registration_t hicn_iface_ip6_input_node; +vlib_node_registration_t hicn_iface_ip6_output_node; + +u32 data_fwd_iface_ip4_vlib_edge; +u32 data_fwd_iface_ip6_vlib_edge; + +void +hicn_iface_ip_init (vlib_main_t * vm) +{ + u32 temp_index4 = vlib_node_add_next (vm, + hicn_interest_hitcs_node.index, + hicn_iface_ip4_output_node.index); + u32 temp_index6 = vlib_node_add_next (vm, + hicn_interest_hitcs_node.index, + hicn_iface_ip6_output_node.index); + + data_fwd_iface_ip4_vlib_edge = vlib_node_add_next (vm, + hicn_data_fwd_node.index, + hicn_iface_ip4_output_node. + index); + + data_fwd_iface_ip6_vlib_edge = vlib_node_add_next (vm, + hicn_data_fwd_node.index, + hicn_iface_ip6_output_node. + index); + + ASSERT (temp_index4 == data_fwd_iface_ip4_vlib_edge); + ASSERT (temp_index6 == data_fwd_iface_ip6_vlib_edge); +} + +static char *hicn_iface_ip4_input_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + +static char *hicn_iface_ip6_input_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; +} hicn_iface_ip4_input_trace_t; + +typedef enum +{ + HICN_IFACE_IP4_INPUT_NEXT_INTEREST, + HICN_IFACE_IP4_INPUT_NEXT_MAPME, + HICN_IFACE_IP4_INPUT_NEXT_ERROR_DROP, + HICN_IFACE_IP4_INPUT_N_NEXT, +} hicn_iface_ip4_input_next_t; + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; +} hicn_iface_ip6_input_trace_t; + +typedef enum +{ + HICN_IFACE_IP6_INPUT_NEXT_INTEREST, + HICN_IFACE_IP6_INPUT_NEXT_MAPME, + HICN_IFACE_IP6_INPUT_NEXT_ERROR_DROP, + HICN_IFACE_IP6_INPUT_N_NEXT, +} hicn_iface_ip6_input_next_t; + +#define NEXT_MAPME_IP4 HICN_IFACE_IP4_INPUT_NEXT_MAPME +#define NEXT_MAPME_IP6 HICN_IFACE_IP6_INPUT_NEXT_MAPME + +#define NEXT_INTEREST_IP4 HICN_IFACE_IP6_INPUT_NEXT_INTEREST +#define NEXT_INTEREST_IP6 HICN_IFACE_IP6_INPUT_NEXT_INTEREST + +#define ADDRESS_IP4 ip_interface_address_t *ia = 0;ip4_address_t *local_address = ip4_interface_first_address(&ip4_main, swif, &ia) +#define ADDRESS_IP6 ip6_address_t *local_address = ip6_interface_first_address(&ip6_main, swif) + +#define ADDRESSX2_IP4 ip_interface_address_t *ia0, *ia1; ia0 = ia1 = 0; \ + ip4_address_t *local_address0 = ip4_interface_first_address(&ip4_main, swif0, &ia0); \ + ip4_address_t *local_address1 = ip4_interface_first_address(&ip4_main, swif1, &ia1); + +#define ADDRESSX2_IP6 ip6_address_t *local_address0 = ip6_interface_first_address(&ip6_main, swif0); \ + ip6_address_t *local_address1 = ip6_interface_first_address(&ip6_main, swif1); + +#define DPO_ADD_LOCK_IP4 hicn_dpo_ip4_add_and_lock_from_remote +#define DPO_ADD_LOCK_IP6 hicn_dpo_ip6_add_and_lock_from_remote + +#define VLIB_EDGE_IP4 data_fwd_iface_ip4_vlib_edge +#define VLIB_EDGE_IP6 data_fwd_iface_ip6_vlib_edge + +#define IP_HEADER_4 ip4_header_t +#define IP_HEADER_6 ip6_header_t + +#define TRACE_INPUT_PKT_IP4 hicn_iface_ip4_input_trace_t +#define TRACE_INPUT_PKT_IP6 hicn_iface_ip6_input_trace_t + +#define iface_input_x1(ipv) \ + do { \ + vlib_buffer_t *b0; \ + u32 bi0, next0; \ + IP_HEADER_##ipv * ip_hdr = NULL; \ + hicn_buffer_t * hicnb0; \ + u32 swif; \ + /* Prefetch for next iteration. */ \ + if (n_left_from > 1) \ + { \ + vlib_buffer_t *b1; \ + b1 = vlib_get_buffer (vm, from[1]); \ + CLIB_PREFETCH (b1, 2*CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b1->data, CLIB_CACHE_LINE_BYTES , LOAD); \ + } \ + /* Dequeue a packet buffer */ \ + bi0 = from[0]; \ + from += 1; \ + n_left_from -= 1; \ + to_next[0] = bi0; \ + to_next += 1; \ + n_left_to_next -= 1; \ + \ + b0 = vlib_get_buffer (vm, bi0); \ + hicnb0 = hicn_get_buffer(b0); \ + ip_hdr = (IP_HEADER_##ipv *) vlib_buffer_get_current(b0); \ + \ + stats.pkts_interest_count += 1; \ + \ + u8 is_icmp = ip_hdr->protocol == IPPROTO_ICMPV##ipv; \ + \ + next0 = is_icmp*NEXT_MAPME_IP##ipv + \ + (1-is_icmp)*NEXT_INTEREST_IP##ipv; \ + \ + swif = vnet_buffer (b0)->sw_if_index[VLIB_RX]; \ + \ + ADDRESS_IP##ipv; \ + \ + DPO_ADD_LOCK_IP##ipv \ + (&(hicnb0->face_dpo_id), \ + &hicnb0->is_appface, \ + local_address, \ + &(ip_hdr->src_address), \ + vnet_buffer(b0)->sw_if_index[VLIB_RX], \ + VLIB_EDGE_IP##ipv); \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b0->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_INPUT_PKT_IP##ipv *t = \ + vlib_add_trace (vm, node, b0, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_INTEREST; \ + t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; \ + t->next_index = next0; \ + } \ + \ + \ + /* 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); \ + }while(0) + + +#define iface_input_x2(ipv) \ + do { \ + vlib_buffer_t *b0, *b1; \ + u32 bi0, bi1, next0, next1; \ + IP_HEADER_##ipv * ip_hdr0 = NULL; \ + IP_HEADER_##ipv * ip_hdr1 = NULL; \ + hicn_buffer_t *hicnb0, *hicnb1; \ + u32 swif0, swif1; \ + \ + /* Prefetch for next iteration. */ \ + vlib_buffer_t *b2, *b3; \ + b2 = vlib_get_buffer (vm, from[2]); \ + b3 = vlib_get_buffer (vm, from[3]); \ + CLIB_PREFETCH (b2, 2*CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b3, 2*CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b2->data, CLIB_CACHE_LINE_BYTES , LOAD); \ + CLIB_PREFETCH (b3->data, CLIB_CACHE_LINE_BYTES , LOAD); \ + \ + /* Dequeue a packet buffer */ \ + bi0 = from[0]; \ + bi1 = from[1]; \ + from += 2; \ + n_left_from -= 2; \ + to_next[0] = bi0; \ + to_next[1] = bi1; \ + to_next += 2; \ + n_left_to_next -= 2; \ + \ + b0 = vlib_get_buffer (vm, bi0); \ + b1 = vlib_get_buffer (vm, bi1); \ + hicnb0 = hicn_get_buffer(b0); \ + hicnb1 = hicn_get_buffer(b1); \ + ip_hdr0 = (IP_HEADER_##ipv *) vlib_buffer_get_current(b0); \ + ip_hdr1 = (IP_HEADER_##ipv *) vlib_buffer_get_current(b1); \ + \ + stats.pkts_interest_count += 2; \ + \ + u8 is_icmp0 = ip_hdr0->protocol == IPPROTO_ICMPV##ipv; \ + u8 is_icmp1 = ip_hdr1->protocol == IPPROTO_ICMPV##ipv; \ + \ + next0 = is_icmp0*NEXT_MAPME_IP##ipv + \ + (1-is_icmp0)*NEXT_INTEREST_IP##ipv; \ + \ + next1 = is_icmp1*NEXT_MAPME_IP##ipv + \ + (1-is_icmp1)*NEXT_INTEREST_IP##ipv; \ + \ + swif0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; \ + swif1 = vnet_buffer (b1)->sw_if_index[VLIB_RX]; \ + \ + ADDRESSX2_IP##ipv; \ + \ + DPO_ADD_LOCK_IP##ipv \ + (&(hicnb0->face_dpo_id), \ + &hicnb0->is_appface, \ + local_address0, \ + &(ip_hdr0->src_address), \ + vnet_buffer(b0)->sw_if_index[VLIB_RX], \ + VLIB_EDGE_IP##ipv); \ + \ + DPO_ADD_LOCK_IP##ipv \ + (&(hicnb1->face_dpo_id), \ + &hicnb1->is_appface, \ + local_address1, \ + &(ip_hdr1->src_address), \ + vnet_buffer(b1)->sw_if_index[VLIB_RX], \ + VLIB_EDGE_IP##ipv); \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b0->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_INPUT_PKT_IP##ipv *t = \ + vlib_add_trace (vm, node, b0, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_INTEREST; \ + t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; \ + t->next_index = next0; \ + } \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b1->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_INPUT_PKT_IP##ipv *t = \ + vlib_add_trace (vm, node, b1, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_INTEREST; \ + t->sw_if_index = vnet_buffer (b1)->sw_if_index[VLIB_RX]; \ + t->next_index = next1; \ + } \ + \ + /* Verify speculative enqueue, maybe switch current next frame */ \ + vlib_validate_buffer_enqueue_x2 (vm, node, next_index, \ + to_next, n_left_to_next, \ + bi0, bi1, next0, next1); \ + }while(0) + +static uword +hicn_iface_ip4_input_node_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + u32 n_left_from, *from, *to_next, next_index; + + from = vlib_frame_vector_args (frame); + n_left_from = frame->n_vectors; + next_index = node->cached_next_index; + vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; + + while (n_left_from > 0) + { + u32 n_left_to_next; + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + /* Dual loop, X2 */ + while (n_left_from >= 4 && n_left_to_next >= 2) + { + iface_input_x2 (4); + } + + /* Dual loop, X1 */ + while (n_left_from > 0 && n_left_to_next > 0) + { + iface_input_x1 (4); + } + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + vlib_node_increment_counter (vm, node->node_index, + HICNFWD_ERROR_INTERESTS, + stats.pkts_interest_count); + + return (frame->n_vectors); +} + +/* packet trace format function */ +static u8 * +hicn_iface_ip4_input_format_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 *); + hicn_iface_ip4_input_trace_t *t = + va_arg (*args, hicn_iface_ip4_input_trace_t *); + + s = format (s, "IFACE_IP4_INPUT: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + +/* + * Node registration for the interest forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (hicn_iface_ip4_input_node) = +{ + .function = hicn_iface_ip4_input_node_fn, + .name = "hicn-iface-ip4-input", + .vector_size = sizeof (u32), + .format_trace = hicn_iface_ip4_input_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN (hicn_iface_ip4_input_error_strings), + .error_strings = hicn_iface_ip4_input_error_strings, + .n_next_nodes = HICN_IFACE_IP4_INPUT_N_NEXT, + /* edit / add dispositions*/ + .next_nodes = + { + [HICN_IFACE_IP4_INPUT_NEXT_INTEREST] = "hicn-interest-pcslookup", + [HICN_IFACE_IP4_INPUT_NEXT_MAPME] = "hicn-mapme-ctrl", + [HICN_IFACE_IP4_INPUT_NEXT_ERROR_DROP] = "error-drop", + }, +}; +/* *INDENT-ON* */ + +static uword +hicn_iface_ip6_input_node_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + u32 n_left_from, *from, *to_next, next_index; + + from = vlib_frame_vector_args (frame); + n_left_from = frame->n_vectors; + next_index = node->cached_next_index; + vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; + + while (n_left_from > 0) + { + u32 n_left_to_next; + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + /* Dual loop, X2 */ + while (n_left_from >= 4 && n_left_to_next >= 2) + { + iface_input_x2 (6); + } + + /* Dual loop, X1 */ + while (n_left_from > 0 && n_left_to_next > 0) + { + iface_input_x1 (6); + } + + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + vlib_node_increment_counter (vm, node->node_index, + HICNFWD_ERROR_INTERESTS, + stats.pkts_interest_count); + + return (frame->n_vectors); +} + +/* packet trace format function */ +static u8 * +hicn_iface_ip6_input_format_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 *); + hicn_iface_ip6_input_trace_t *t = + va_arg (*args, hicn_iface_ip6_input_trace_t *); + + s = format (s, "IFACE_IP6_INPUT: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + +/* + * Node registration for the interest forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (hicn_iface_ip6_input_node) = +{ + .function = hicn_iface_ip6_input_node_fn, + .name = "hicn-iface-ip6-input", + .vector_size = sizeof (u32), + .format_trace = hicn_iface_ip6_input_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN (hicn_iface_ip6_input_error_strings), + .error_strings = hicn_iface_ip6_input_error_strings, + .n_next_nodes = HICN_IFACE_IP6_INPUT_N_NEXT, + /* edit / add dispositions*/ + .next_nodes = + { + [HICN_IFACE_IP6_INPUT_NEXT_INTEREST] = "hicn-interest-pcslookup", + [HICN_IFACE_IP6_INPUT_NEXT_MAPME] = "hicn-mapme-ctrl", + [HICN_IFACE_IP6_INPUT_NEXT_ERROR_DROP] = "error-drop", + }, +}; +/* *INDENT-ON* */ + + +/**** IFACE OUTPUT *****/ + +static inline void +hicn_rewrite_iface_data4 (vlib_main_t * vm, vlib_buffer_t * b0, + const hicn_face_t * iface) +{ + ip4_header_t *ip0; + + /* Get the pointer to the old ip and tcp header */ + ip0 = vlib_buffer_get_current (b0); + + /* Set up the ip6 header */ + /* IP4 lenght contains the size of the ip4 header too */ + u16 sval = (vlib_buffer_length_in_chain (vm, b0)); + ip0->length = clib_host_to_net_u16 (sval); + ip0->ttl = 254; // FIXME TTL + + vnet_buffer (b0)->ip.adj_index[VLIB_TX] = ~0; + hicn_header_t *hicn = vlib_buffer_get_current (b0); + + ip46_address_t temp_addr; + ip46_address_reset (&temp_addr); + hicn_face_ip_t *iface_ip = (hicn_face_ip_t *) iface->data; + hicn_type_t type = hicn_get_buffer (b0)->type; + hicn_ops_vft[type.l1]->rewrite_data (type, &hicn->protocol, + &(iface_ip->remote_addr), &(temp_addr), + iface->shared.pl_id); +} + +static inline void +hicn_rewrite_iface_data6 (vlib_main_t * vm, vlib_buffer_t * b0, + const hicn_face_t * iface) +{ + ip6_header_t *ip0; + + /* Get the pointer to the old ip and tcp header */ + /* Copy the previous ip and tcp header to the new portion of memory */ + ip0 = vlib_buffer_get_current (b0); + + /* Set up the ip6 header */ + /* IP6 lenght does not include the size of the ip6 header */ + u16 sval = (vlib_buffer_length_in_chain (vm, b0) - (sizeof (ip6_header_t))); + ip0->payload_length = clib_host_to_net_u16 (sval); + ip0->hop_limit = HICN_IP6_HOP_LIMIT; + + vnet_buffer (b0)->ip.adj_index[VLIB_TX] = ~0; + hicn_header_t *hicn = vlib_buffer_get_current (b0); + + ip46_address_t temp_addr; + ip46_address_reset (&temp_addr); + hicn_face_ip_t *iface_ip = (hicn_face_ip_t *) iface->data; + hicn_type_t type = hicn_get_buffer (b0)->type; + hicn_ops_vft[type.l1]->rewrite_data (type, &hicn->protocol, + &(iface_ip->remote_addr), &(temp_addr), + iface->shared.pl_id); +} + +static char *hicn_iface_ip4_output_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + +static char *hicn_iface_ip6_output_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; +} hicn_iface_ip4_output_trace_t; + +typedef enum +{ + HICN_IFACE_IP4_OUTPUT_NEXT_LOOKUP, + HICN_IFACE_IP4_OUTPUT_NEXT_ERROR_DROP, + HICN_IFACE_IP4_OUTPUT_N_NEXT, +} hicn_iface_ip4_output_next_t; + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; +} hicn_iface_ip6_output_trace_t; + +typedef enum +{ + HICN_IFACE_IP6_OUTPUT_NEXT_LOOKUP, + HICN_IFACE_IP6_OUTPUT_NEXT_ERROR_DROP, + HICN_IFACE_IP6_OUTPUT_N_NEXT, +} hicn_iface_ip6_output_next_t; + +#define ERROR_OUTPUT_IP4 HICN_IFACE_IP4_OUTPUT_NEXT_ERROR_DROP +#define ERROR_OUTPUT_IP6 HICN_IFACE_IP6_OUTPUT_NEXT_ERROR_DROP + +#define NEXT_DATA_LOOKUP_IP4 HICN_IFACE_IP4_OUTPUT_NEXT_LOOKUP +#define NEXT_DATA_LOOKUP_IP6 HICN_IFACE_IP6_OUTPUT_NEXT_LOOKUP + +#define HICN_REWRITE_DATA_IP4 hicn_rewrite_iface_data4 +#define HICN_REWRITE_DATA_IP6 hicn_rewrite_iface_data6 + +#define TRACE_OUTPUT_PKT_IP4 hicn_iface_ip4_output_trace_t +#define TRACE_OUTPUT_PKT_IP6 hicn_iface_ip6_output_trace_t + +#define iface_output_x1(ipv) \ + do { \ + vlib_buffer_t *b0; \ + u32 bi0; \ + u32 next0 = ERROR_OUTPUT_IP##ipv; \ + hicn_face_t * face; \ + \ + /* Prefetch for next iteration. */ \ + if (n_left_from > 1) \ + { \ + vlib_buffer_t *b1; \ + b1 = vlib_get_buffer (vm, from[1]); \ + CLIB_PREFETCH (b1, CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b1->data, CLIB_CACHE_LINE_BYTES , STORE); \ + } \ + /* Dequeue a packet buffer */ \ + bi0 = from[0]; \ + from += 1; \ + n_left_from -= 1; \ + to_next[0] = bi0; \ + to_next += 1; \ + n_left_to_next -= 1; \ + \ + b0 = vlib_get_buffer (vm, bi0); \ + \ + face = \ + hicn_dpoi_get_from_idx (vnet_buffer (b0)->ip.adj_index[VLIB_TX]); \ + \ + if (PREDICT_TRUE(face != NULL)) \ + { \ + HICN_REWRITE_DATA_IP##ipv \ + (vm, b0, face); \ + next0 = NEXT_DATA_LOOKUP_IP##ipv; \ + stats.pkts_data_count += 1; \ + } \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b0->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_OUTPUT_PKT_IP##ipv *t = \ + vlib_add_trace (vm, node, b0, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_INTEREST; \ + t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; \ + t->next_index = next0; \ + } \ + \ + \ + /* 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); \ + }while(0); \ + + +#define iface_output_x2(ipv) \ + do { \ + vlib_buffer_t *b0, *b1; \ + u32 bi0, bi1; \ + u32 next0 = ERROR_OUTPUT_IP##ipv; \ + u32 next1 = ERROR_OUTPUT_IP##ipv; \ + hicn_face_t *face0, *face1; \ + \ + /* Prefetch for next iteration. */ \ + { \ + vlib_buffer_t *b2, *b3; \ + b2 = vlib_get_buffer (vm, from[2]); \ + b3 = vlib_get_buffer (vm, from[3]); \ + CLIB_PREFETCH (b2, CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b3, CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b2->data, CLIB_CACHE_LINE_BYTES , STORE); \ + CLIB_PREFETCH (b3->data, CLIB_CACHE_LINE_BYTES , STORE); \ + } \ + \ + /* Dequeue a packet buffer */ \ + bi0 = from[0]; \ + bi1 = from[1]; \ + from += 2; \ + n_left_from -= 2; \ + to_next[0] = bi0; \ + to_next[1] = bi1; \ + to_next += 2; \ + n_left_to_next -= 2; \ + \ + b0 = vlib_get_buffer (vm, bi0); \ + b1 = vlib_get_buffer (vm, bi1); \ + \ + face0 = \ + hicn_dpoi_get_from_idx (vnet_buffer (b0)->ip.adj_index[VLIB_TX]); \ + face1 = \ + hicn_dpoi_get_from_idx (vnet_buffer (b1)->ip.adj_index[VLIB_TX]); \ + \ + if (PREDICT_TRUE(face0 != NULL)) \ + { \ + HICN_REWRITE_DATA_IP##ipv \ + (vm, b0, face0); \ + next0 = NEXT_DATA_LOOKUP_IP##ipv; \ + stats.pkts_data_count += 1; \ + } \ + \ + if (PREDICT_TRUE(face1 != NULL)) \ + { \ + HICN_REWRITE_DATA_IP##ipv \ + (vm, b1, face1); \ + next1 = NEXT_DATA_LOOKUP_IP##ipv; \ + stats.pkts_data_count += 1; \ + } \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b0->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_OUTPUT_PKT_IP##ipv *t = \ + vlib_add_trace (vm, node, b0, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_INTEREST; \ + t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; \ + t->next_index = next0; \ + } \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b1->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_OUTPUT_PKT_IP##ipv *t = \ + vlib_add_trace (vm, node, b1, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_INTEREST; \ + t->sw_if_index = vnet_buffer (b1)->sw_if_index[VLIB_RX]; \ + t->next_index = next1; \ + } \ + \ + \ + /* Verify speculative enqueue, maybe switch current next frame */ \ + vlib_validate_buffer_enqueue_x2 (vm, node, next_index, \ + to_next, n_left_to_next, \ + bi0, bi1, next0, next1); \ + }while(0); \ + + + +static uword +hicn_iface_ip4_output_node_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + u32 n_left_from, *from, *to_next, next_index; + vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; + + 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); + + while (n_left_from >= 4 && n_left_to_next >= 2) + { + iface_output_x2 (4); + } + + while (n_left_from > 0 && n_left_to_next > 0) + { + iface_output_x1 (4); + } + + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + vlib_node_increment_counter (vm, node->node_index, + HICNFWD_ERROR_DATAS, stats.pkts_data_count); + + return (frame->n_vectors); +} + +/* packet trace format function */ +static u8 * +hicn_iface_ip4_output_format_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 *); + hicn_iface_ip4_output_trace_t *t = + va_arg (*args, hicn_iface_ip4_output_trace_t *); + + s = format (s, "IFACE_IP4_OUTPUT: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + +/* + * Node registration for the interest forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (hicn_iface_ip4_output_node) = +{ + .function = hicn_iface_ip4_output_node_fn, + .name = "hicn-iface-ip4-output", + .vector_size = sizeof (u32), + .format_trace = hicn_iface_ip4_output_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN (hicn_iface_ip4_output_error_strings), + .error_strings = hicn_iface_ip4_output_error_strings, + .n_next_nodes = HICN_IFACE_IP4_OUTPUT_N_NEXT, + /* edit / add dispositions here */ + .next_nodes = + { + [HICN_IFACE_IP4_OUTPUT_NEXT_LOOKUP] = "ip4-lookup", + [HICN_IFACE_IP4_OUTPUT_NEXT_ERROR_DROP] = "error-drop", + }, +}; +/* *INDENT-ON* */ + + +static uword +hicn_iface_ip6_output_node_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + u32 n_left_from, *from, *to_next, next_index; + vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; + + 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); + + while (n_left_from >= 4 && n_left_to_next >= 2) + { + iface_output_x2 (6); + } + + while (n_left_from > 0 && n_left_to_next > 0) + { + iface_output_x1 (6); + } + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + vlib_node_increment_counter (vm, node->node_index, + HICNFWD_ERROR_DATAS, stats.pkts_data_count); + + return (frame->n_vectors); +} + +/* packet trace format function */ +static u8 * +hicn_iface_ip6_output_format_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 *); + hicn_iface_ip6_output_trace_t *t = + va_arg (*args, hicn_iface_ip6_output_trace_t *); + + s = format (s, "IFACE_IP6_OUTPUT: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + +/* + * Node registration for the interest forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (hicn_iface_ip6_output_node) = +{ + .function = hicn_iface_ip6_output_node_fn, + .name = "hicn-iface-ip6-output", + .vector_size = sizeof (u32), + .format_trace = hicn_iface_ip6_output_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN (hicn_iface_ip6_output_error_strings), + .error_strings = hicn_iface_ip6_output_error_strings, + .n_next_nodes = HICN_IFACE_IP6_OUTPUT_N_NEXT, + /* edit / add dispositions here */ + .next_nodes = + { + [HICN_IFACE_IP6_OUTPUT_NEXT_LOOKUP] = "ip6-lookup", + [HICN_IFACE_IP6_OUTPUT_NEXT_ERROR_DROP] = "error-drop", + }, +}; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/ip/iface_ip_node.h b/hicn-plugin/src/faces/ip/iface_ip_node.h new file mode 100755 index 000000000..36923f069 --- /dev/null +++ b/hicn-plugin/src/faces/ip/iface_ip_node.h @@ -0,0 +1,35 @@ +/* + * Copyright (c) 2017-2019 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 __HICN_IFACE_IP_NODE_H__ +#define __HICN_IFACE_IP_NODE_H__ + +#include <vlib/vlib.h> +#include <vnet/vnet.h> + +/** + * @brief Initialize the ip iface module + */ +void hicn_iface_ip_init (vlib_main_t * vm); + +#endif // __HICN_IFACE_IP_NODE_H__ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/udp/dpo_udp.c b/hicn-plugin/src/faces/udp/dpo_udp.c new file mode 100755 index 000000000..e58fc9788 --- /dev/null +++ b/hicn-plugin/src/faces/udp/dpo_udp.c @@ -0,0 +1,158 @@ +/* + * Copyright (c) 2017-2019 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 "dpo_udp.h" + +#include <vnet/ip/format.h> +#include <vnet/adj/adj.h> +#include <vnet/vnet.h> +#include <vlib/vlib.h> + +const static char *const hicn_face_ip4udp_nodes[] = { + "hicn-face-encap-udp4", + "hicn-face-decap-udp4", + "hicn-iface-decap-udp4", + "hicn-iface-encap-udp4", + NULL, +}; + +const static char *const hicn_face_ip6udp_nodes[] = { + "hicn-face-encap-udp6", + "hicn-face-decap-udp6", + "hicn-iface-decap-udp6", + "hicn-iface-encap-udp6", + NULL, +}; + +const static char *const *const hicn_ipudp_nodes[DPO_PROTO_NUM] = { + [DPO_PROTO_IP4] = hicn_face_ip4udp_nodes, + [DPO_PROTO_IP6] = hicn_face_ip6udp_nodes +}; + + +const static dpo_vft_t hicn_dpoi_udp_vft = { + .dv_lock = hicn_face_lock, + .dv_unlock = hicn_face_unlock, + .dv_format = format_hicn_face_udp, +}; + +/* Must be executed after all the strategy nodes are created */ +void +hicn_dpo_udp_module_init (void) +{ + mhash_init (&hicn_face_udp_hashtb, sizeof (hicn_face_id_t) /* value */ , + sizeof (hicn_face_udp_key_t) /* key */ ); + + /* + * How much useful is the following registration? + * So far it seems that we need it only for setting the dpo_type. + */ + hicn_face_udp_type = + dpo_register_new_type (&hicn_dpoi_udp_vft, hicn_ipudp_nodes); +} + + +/* Here udp ports are in host order, move them to network order to do the lookup */ +int +hicn_dpo_udp4_create (dpo_id_t * dpo, + const ip4_address_t * src_ip, + const ip4_address_t * dst_ip, + u16 src_port, u16 dst_port, + u32 sw_if, + adj_index_t ip_adj, + u32 node_index, + hicn_face_flags_t flags, hicn_face_id_t * face_id) +{ + u16 net_src_port = clib_host_to_net_u16 (src_port); + u16 net_dst_port = clib_host_to_net_u16 (dst_port); + hicn_face_t *face = hicn_face_udp4_get (src_ip, dst_ip, src_port, dst_port); + + u8 is_appface; + /* ip_csum_t sum0; */ + + if (face != NULL) + return HICN_ERROR_FACE_ALREADY_CREATED; + + hicn_dpo_udp4_add_and_lock (dpo, src_ip, dst_ip, net_src_port, net_dst_port, + node_index, &is_appface); + + face = hicn_dpoi_get_from_idx (dpo->dpoi_index); + + hicn_face_udp_t *udp_face = (hicn_face_udp_t *) face->data; + + udp_face->hdrs.ip4.ip.checksum = + ip4_header_checksum (&(udp_face->hdrs.ip4.ip)); + + face->shared.flags = flags; + face->shared.adj = ip_adj; + face->shared.sw_if = sw_if; + *face_id = hicn_dpoi_get_index (face); + + return HICN_ERROR_NONE; +} + + +int +hicn_dpo_udp6_create (dpo_id_t * dpo, + const ip6_address_t * src_ip, + const ip6_address_t * dst_ip, + u16 src_port, u16 dst_port, + u32 sw_if, + adj_index_t ip_adj, + u32 node_index, + hicn_face_flags_t flags, hicn_face_id_t * face_id) +{ + u16 net_src_port = clib_host_to_net_u16 (src_port); + u16 net_dst_port = clib_host_to_net_u16 (dst_port); + hicn_face_t *face = + hicn_face_udp6_get (src_ip, dst_ip, net_src_port, net_dst_port); + u8 is_appface; + + if (face != NULL) + return HICN_ERROR_FACE_ALREADY_CREATED; + + hicn_dpo_udp6_add_and_lock (dpo, src_ip, dst_ip, net_src_port, net_dst_port, + node_index, &is_appface); + + face = hicn_dpoi_get_from_idx (dpo->dpoi_index); + + face->shared.flags = flags; + face->shared.adj = ip_adj; + face->shared.sw_if = sw_if; + *face_id = hicn_dpoi_get_index (face); + + return HICN_ERROR_NONE; +} + +void +hicn_dpo_udp_create_from_face (hicn_face_t * face, dpo_id_t * dpo, + u16 dpoi_next_node) +{ + hicn_face_id_t face_dpoi_id = hicn_dpoi_get_index (face); + hicn_face_udp_t *face_udp = (hicn_face_udp_t *) face->data; + u8 version = + (face_udp->hdrs.ip4.ip.ip_version_and_header_length & 0xf0) >> 4; + dpo_set (dpo, face->shared.face_type, + version == 4 ? DPO_PROTO_IP4 : DPO_PROTO_IP6, face_dpoi_id); + dpo->dpoi_next_node = dpoi_next_node; +} + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/udp/dpo_udp.h b/hicn-plugin/src/faces/udp/dpo_udp.h new file mode 100755 index 000000000..fdde4192b --- /dev/null +++ b/hicn-plugin/src/faces/udp/dpo_udp.h @@ -0,0 +1,312 @@ +/* + * Copyright (c) 2017-2019 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 __HICN_DPO_UDP_H__ +#define __HICN_DPO_UDP_H__ + +#include <vnet/adj/adj_types.h> +#include <vnet/ip/ip4_packet.h> +#include <vnet/ip/ip6_packet.h> + +#include "face_udp.h" +#include "../face.h" +#include "../../error.h" + + +/** + * @brief Initialize the internal structures of the dpo udp face module. + */ +void hicn_dpo_udp_module_init (void); + +/** + * @brief Create a udp face and its corresponding dpo. Meant to be used for the + * control plane. + * + * @param dpo: Data plane object that point to the face created. + * @param local_addr: Local address of the UDP tunnel + * @param remote_addr: Remote address of the UDP tunnel + * @param local_port: Local port of the UDP tunnel + * @param remote_port: Remote port of the UDP tunnel + * @param adj: Ip adjacency corresponding to the remote address in the face + * @param node_index: vlib edge index to use in the packet processing + * @param flags: Flags of the face + * @param face_id: Identifier for the face (dpoi_index) + * @return HICN_ERROR_FACE_ALREADY_CREATED if the face exists, otherwise HICN_ERROR_NONE + */ +int +hicn_dpo_udp4_create (dpo_id_t * dpo, + const ip4_address_t * local_addr, + const ip4_address_t * remote_addr, + u16 local_port, u16 remote_port, + u32 sw_if, + adj_index_t adj, + u32 node_index, + hicn_face_flags_t flags, hicn_face_id_t * face_id); + +/** + * @brief Retrieve a face using the face identifier, i.e., the quadruplet (local_addr, remote_addr, + * local_port, remote_port). This method adds a lock on the face state. + * + * @param dpo: Result of the lookup. If the face doesn't exist dpo = NULL + * @param local_addr: Local address of the UDP tunnel + * @param remote_addr: Remote address of the UDP tunnel + * @param local_port: Local port of the UDP tunnel + * @param remote_port: Remote port of the UDP tunnel + * @param is_appface: Boolean that indicates whether the face is an application + * face or not. (Currently only IP faces can be appface) + * + * @result HICN_ERROR_FACE_NOT_FOUND if the face does not exist, otherwise HICN_ERROR_NONE. + */ +always_inline int +hicn_dpo_udp4_lock (dpo_id_t * dpo, + const ip4_address_t * local_addr, + const ip4_address_t * remote_addr, + u16 local_port, u16 remote_port, u8 * is_appface) +{ + hicn_face_t *face = + hicn_face_udp4_get (local_addr, remote_addr, local_port, remote_port); + + if (PREDICT_FALSE (face == NULL)) + return HICN_ERROR_FACE_NOT_FOUND; + + index_t dpoi_index = hicn_dpoi_get_index (face); + dpo_set (dpo, hicn_face_udp_type, DPO_PROTO_IP4, dpoi_index); + dpo->dpoi_next_node = ~0; + dpo_lock (dpo); + + *is_appface = 0; + + return HICN_ERROR_NONE; +} + +/** + * @brief Retrieve, or create if it doesn't exist, a face from the face + * identifier (local_addr, remote_addr, local_port, remote_port) and returns its + * dpo. This method adds a lock on the face state. + * + * @param dpo: Result of the lookup + * @param local_addr: Local address of the UDP tunnel + * @param remote_addr: Remote address of the UDP tunnel + * @param local_port: Local port of the UDP tunnel + * @param remote_port: Remote port of the UDP tunnel + * @param is_appface: Boolean that indicates whether the face is an application + * face or not. (Currently only IP faces can be appface) + * @param node_index: vlib edge index to use in the packet processing + */ +always_inline void +hicn_dpo_udp4_add_and_lock (dpo_id_t * dpo, + const ip4_address_t * local_addr, + const ip4_address_t * remote_addr, + u16 local_port, u16 remote_port, + u32 node_index, u8 * is_appface) +{ + hicn_face_t *face = + hicn_face_udp4_get (local_addr, remote_addr, local_port, remote_port); + + if (face == NULL) + { + pool_get (hicn_dpoi_face_pool, face); + + hicn_face_udp_t *udp_face = (hicn_face_udp_t *) face->data; + + clib_memcpy (&(udp_face->hdrs.ip4.ip), &ip4_header_skl, + sizeof (ip4_header_t)); + clib_memcpy (&(udp_face->hdrs.ip4.ip.src_address), local_addr, + sizeof (ip4_address_t)); + clib_memcpy (&(udp_face->hdrs.ip4.ip.dst_address), remote_addr, + sizeof (ip4_address_t)); + + udp_face->hdrs.ip4.udp.src_port = local_port; + udp_face->hdrs.ip4.udp.dst_port = remote_port; + + face->shared.adj = ADJ_INDEX_INVALID; + face->shared.pl_id = (u16) 0; + face->shared.face_type = hicn_face_udp_type; + face->shared.flags = HICN_FACE_FLAGS_IFACE; + face->shared.locks = 0; + + hicn_face_udp_key_t key; + hicn_face_udp4_get_key (local_addr, remote_addr, local_port, + remote_port, &key); + hicn_face_id_t dpoi_index = hicn_dpoi_get_index (face); + + mhash_set_mem (&hicn_face_udp_hashtb, &key, (uword *) & dpoi_index, 0); + face = face; + + *is_appface = 0; + dpo_set (dpo, hicn_face_udp_type, DPO_PROTO_IP4, dpoi_index); + dpo->dpoi_next_node = node_index; + dpo_lock (dpo); + + return; + } + + *is_appface = 0; + + hicn_face_id_t dpoi_index = hicn_dpoi_get_index (face); + dpo_set (dpo, hicn_face_udp_type, DPO_PROTO_IP4, dpoi_index); + dpo->dpoi_next_node = node_index; + dpo_lock (dpo); +} + +/** + * @brief Create a udp face and its corresponding dpo. Meant to be used for the + * control plane. + * + * @param dpo: Data plane object that point to the face created. + * @param local_addr: Local address of the UDP tunnel + * @param remote_addr: Remote address of the UDP tunnel + * @param local_port: Local port of the UDP tunnel + * @param remote_port: Remote port of the UDP tunnel + * @param adj: Ip adjacency corresponding to the remote address in the face + * @param node_index: vlib edge index to use in the packet processing + * @param flags: Flags of the face + * @param face_id: Identifier for the face (dpoi_index) + * @return HICN_ERROR_FACE_ALREADY_CREATED if the face exists, otherwise HICN_ERROR_NONE + */ +int +hicn_dpo_udp6_create (dpo_id_t * dpo, + const ip6_address_t * local_addr, + const ip6_address_t * remote_addr, + u16 local_port, u16 remote_port, + u32 sw_if, + adj_index_t adj, + u32 node_index, + hicn_face_flags_t flags, hicn_face_id_t * face_id); + + +/** + * @brief Retrieve a face using the face identifier, i.e., the quadruplet (local_addr, remote_addr, + * local_port, remote_port). This method adds a lock on the face state. + * + * @param dpo: Result of the lookup. If the face doesn't exist dpo = NULL + * @param local_addr: Local address of the UDP tunnel + * @param remote_addr: Remote address of the UDP tunnel + * @param local_port: Local port of the UDP tunnel + * @param remote_port: Remote port of the UDP tunnel + * @param is_appface: Boolean that indicates whether the face is an application + * face or not. (Currently only IP faces can be appface) + * + * @result HICN_ERROR_FACE_NOT_FOUND if the face does not exist, otherwise HICN_ERROR_NONE. + */ +always_inline int +hicn_dpo_udp6_lock (dpo_id_t * dpo, + const ip6_address_t * local_addr, + const ip6_address_t * remote_addr, + u16 local_port, u16 remote_port, u8 * is_appface) +{ + hicn_face_t *face = + hicn_face_udp6_get (local_addr, remote_addr, local_port, remote_port); + + + if (PREDICT_FALSE (face == NULL)) + return HICN_ERROR_FACE_NOT_FOUND; + + hicn_face_id_t dpoi_index = hicn_dpoi_get_index (face); + dpo_set (dpo, hicn_face_udp_type, DPO_PROTO_IP4, dpoi_index); + dpo->dpoi_next_node = ~0; + dpo_lock (dpo); + *is_appface = 0; + + return HICN_ERROR_NONE; +} + +/** + * @brief Retrieve, or create if it doesn't exist, a face from the face + * identifier (local_addr, remote_addr, local_port, remote_port) and returns its + * dpo. This method adds a lock on the face state. + * + * @param dpo: Result of the lookup + * @param local_addr: Local address of the UDP tunnel + * @param remote_addr: Remote address of the UDP tunnel + * @param local_port: Local port of the UDP tunnel + * @param remote_port: Remote port of the UDP tunnel + * @param is_appface: Boolean that indicates whether the face is an application + * face or not. (Currently only IP faces can be appface) + * @param node_index: vlib edge index to use in the packet processing + */ +always_inline void +hicn_dpo_udp6_add_and_lock (dpo_id_t * dpo, + const ip6_address_t * local_addr, + const ip6_address_t * remote_addr, + u16 local_port, u16 remote_port, + u32 node_index, u8 * is_appface) +{ + hicn_face_t *face = + hicn_face_udp6_get (local_addr, remote_addr, local_port, remote_port); + + if (face == NULL) + { + pool_get (hicn_dpoi_face_pool, face); + + hicn_face_udp_t *udp_face = (hicn_face_udp_t *) face->data; + + clib_memcpy (&(udp_face->hdrs.ip6.ip), &ip6_header_skl, + sizeof (ip6_header_t)); + clib_memcpy (&(udp_face->hdrs.ip6.ip.src_address), local_addr, + sizeof (ip6_address_t)); + clib_memcpy (&(udp_face->hdrs.ip6.ip.dst_address), remote_addr, + sizeof (ip6_address_t)); + + udp_face->hdrs.ip6.udp.src_port = local_port; + udp_face->hdrs.ip6.udp.dst_port = remote_port; + + face->shared.adj = ADJ_INDEX_INVALID; + face->shared.pl_id = (u16) 0; + face->shared.face_type = hicn_face_udp_type; + face->shared.flags = HICN_FACE_FLAGS_IFACE; + face->shared.locks = 0; + + hicn_face_udp_key_t key; + hicn_face_udp6_get_key (local_addr, remote_addr, local_port, + remote_port, &key); + hicn_face_id_t dpoi_index = hicn_dpoi_get_index (face); + + mhash_set_mem (&hicn_face_udp_hashtb, &key, (uword *) & dpoi_index, 0); + + *is_appface = 0; + dpo_set (dpo, hicn_face_udp_type, DPO_PROTO_IP6, dpoi_index); + dpo->dpoi_next_node = node_index; + dpo_lock (dpo); + + return; + } + + *is_appface = 0; + + hicn_face_id_t dpoi_index = hicn_dpoi_get_index (face); + dpo_set (dpo, hicn_face_udp_type, DPO_PROTO_IP6, dpoi_index); + dpo->dpoi_next_node = node_index; + dpo_lock (dpo); +} + +/** + * @brief Create a dpo from a udp face + * + * @param face Face from which to create the dpo + * @return the dpo + */ +void hicn_dpo_udp_create_from_face (hicn_face_t * face, dpo_id_t * dpo, + u16 dpoi_next_node); + +#endif // __HICN_DPO_UDP_H__ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/udp/face_udp.c b/hicn-plugin/src/faces/udp/face_udp.c new file mode 100755 index 000000000..92335273a --- /dev/null +++ b/hicn-plugin/src/faces/udp/face_udp.c @@ -0,0 +1,371 @@ +/* + * Copyright (c) 2017-2019 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 "face_udp.h" +#include "face_udp_node.h" +#include "dpo_udp.h" +#include "../face.h" +#include "../../strategy.h" +#include "../../strategy_dpo_manager.h" +#include "../../hicn.h" + +#include "../../mapme.h" // HICN_MAPME_EVENT_* +#include "../../mapme_eventmgr.h" // hicn_mapme_eventmgr_process_node +extern vlib_node_registration_t hicn_mapme_eventmgr_process_node; + +mhash_t hicn_face_udp_hashtb; + +dpo_type_t hicn_face_udp_type; + +ip4_header_t ip4_header_skl = { + .ip_version_and_header_length = 0x45, + .tos = 0x00, + .length = (u16) 0, + .fragment_id = (u16) 0, + .flags_and_fragment_offset = (u16) 0, + .ttl = 254, + .protocol = IP_PROTOCOL_UDP, + .checksum = 0, + .src_address = {{0}}, + .dst_address = {{0}}, +}; + +ip6_header_t ip6_header_skl = { +#if CLIB_ARCH_IS_BIG_ENDIAN + .ip_version_traffic_class_and_flow_label = 0x60000000, +#else + .ip_version_traffic_class_and_flow_label = 0x00000060, +#endif + .payload_length = (u16) 0, + .protocol = IP_PROTOCOL_UDP, + .hop_limit = 254, + .src_address = {{0}}, + .dst_address = {{0}} +}; + +u32 strategy_face_udp4_vlib_edge; +u32 strategy_face_udp6_vlib_edge; + +/* Separated from the hicn_face_udp_init because it cannot be called by the + init macro due to dependencies with other modules not yet initialied */ +void +hicn_face_udp_init_internal () +{ + ip4_header_t *ip4_hdr = &ip4_header_skl; + ip4_header_skl.checksum = ip4_header_checksum (ip4_hdr); +} + +void +hicn_face_udp_init (vlib_main_t * vm) +{ + int strategy_nodes_n = hicn_strategy_get_all_available (); + + /* Default Strategy has index 0 and it always exists */ + strategy_face_udp4_vlib_edge = vlib_node_add_next (vm, + hicn_dpo_get_strategy_vft + (default_dpo. + hicn_dpo_get_type ())-> + get_strategy_node_index + (), + hicn_face_udp4_output_node. + index); + strategy_face_udp6_vlib_edge = + vlib_node_add_next (vm, + hicn_dpo_get_strategy_vft (default_dpo. + hicn_dpo_get_type ())-> + get_strategy_node_index (), + hicn_face_udp6_output_node.index); + + /* + * Create and edge between al the other strategy nodes + * and the udp_output nodes. + */ + for (int i = 1; i < strategy_nodes_n; i++) + { + u32 temp_index4 = vlib_node_add_next (vm, + hicn_dpo_get_strategy_vft_from_id + (i)->get_strategy_node_index (), + hicn_face_udp4_output_node.index); + u32 temp_index6 = vlib_node_add_next (vm, + hicn_dpo_get_strategy_vft_from_id + (i)->get_strategy_node_index (), + hicn_face_udp6_output_node.index); + ASSERT (temp_index4 == strategy_face_udp4_vlib_edge); + ASSERT (temp_index6 == strategy_face_udp6_vlib_edge); + } + + hicn_dpo_udp_module_init (); + + register_face_type (hicn_face_udp_type, &udp_vft, "udp");; +} + +int +hicn_face_udp_add (const ip46_address_t * local_addr, + const ip46_address_t * remote_addr, u16 local_port, + u16 remote_port, u32 swif, hicn_face_id_t * pfaceid) +{ + fib_protocol_t fib_type; + vnet_link_t link_type; + adj_index_t ip_adj; + int ret = HICN_ERROR_NONE; + dpo_proto_t dpo_proto; + + hicn_face_flags_t flags = (hicn_face_flags_t) 0; + flags |= HICN_FACE_FLAGS_FACE; + + + if (ip46_address_is_ip4 (local_addr) && ip46_address_is_ip4 (remote_addr)) + { + link_type = VNET_LINK_IP4; + fib_type = FIB_PROTOCOL_IP4; + ip_adj = adj_nbr_add_or_lock (fib_type, link_type, remote_addr, swif); + + hicn_face_t *face = + hicn_face_udp4_get (&local_addr->ip4, &remote_addr->ip4, local_port, + remote_port); + + if (face != NULL) + return HICN_ERROR_FACE_ALREADY_CREATED; + + pool_get (hicn_dpoi_face_pool, face); + + hicn_face_udp_t *udp_face = (hicn_face_udp_t *) face->data; + + clib_memcpy (&(udp_face->hdrs.ip4.ip), &ip4_header_skl, + sizeof (ip4_header_t)); + clib_memcpy (&(udp_face->hdrs.ip4.ip.src_address), &(local_addr->ip4), + sizeof (ip4_address_t)); + clib_memcpy (&(udp_face->hdrs.ip4.ip.dst_address), &(remote_addr->ip4), + sizeof (ip4_address_t)); + + udp_face->hdrs.ip4.udp.src_port = local_port; + udp_face->hdrs.ip4.udp.dst_port = remote_port; + + ip_csum_t csum = udp_face->hdrs.ip4.ip.checksum; + csum = ip_csum_sub_even (csum, ip4_header_skl.src_address.as_u32); + csum = ip_csum_sub_even (csum, ip4_header_skl.dst_address.as_u32); + csum = + ip_csum_add_even (csum, udp_face->hdrs.ip4.ip.src_address.as_u32); + csum = + ip_csum_add_even (csum, udp_face->hdrs.ip4.ip.dst_address.as_u32); + udp_face->hdrs.ip4.ip.checksum = ip_csum_fold (csum); + + face->shared.adj = ip_adj; + face->shared.sw_if = swif; + face->shared.pl_id = (u16) 0; + face->shared.face_type = hicn_face_udp_type; + face->shared.flags = flags; + face->shared.locks = 0; + + hicn_face_udp_key_t key; + hicn_face_udp4_get_key (&local_addr->ip4, &remote_addr->ip4, local_port, + remote_port, &key); + hicn_face_id_t dpoi_index = hicn_dpoi_get_index (face); + + mhash_set_mem (&hicn_face_udp_hashtb, &key, (uword *) & dpoi_index, 0); + + *pfaceid = hicn_dpoi_get_index (face); + dpo_proto = DPO_PROTO_IP4; + } + else if (!ip46_address_is_ip4 (local_addr) + && !ip46_address_is_ip4 (remote_addr)) + { + link_type = VNET_LINK_IP6; + fib_type = FIB_PROTOCOL_IP6; + ip_adj = adj_nbr_add_or_lock (fib_type, link_type, remote_addr, swif); + + hicn_face_t *face = + hicn_face_udp6_get (&local_addr->ip6, &remote_addr->ip6, local_port, + remote_port); + + if (face != NULL) + return HICN_ERROR_FACE_ALREADY_CREATED; + + pool_get (hicn_dpoi_face_pool, face); + + hicn_face_udp_t *udp_face = (hicn_face_udp_t *) face->data; + + clib_memcpy (&(udp_face->hdrs.ip6.ip), &ip6_header_skl, + sizeof (ip6_header_t)); + clib_memcpy (&(udp_face->hdrs.ip6.ip.src_address), local_addr, + sizeof (ip6_address_t)); + clib_memcpy (&(udp_face->hdrs.ip6.ip.dst_address), remote_addr, + sizeof (ip6_address_t)); + + udp_face->hdrs.ip6.udp.src_port = local_port; + udp_face->hdrs.ip6.udp.dst_port = remote_port; + + face->shared.adj = ip_adj; + face->shared.sw_if = swif; + face->shared.pl_id = (u16) 0; + face->shared.face_type = hicn_face_udp_type; + face->shared.flags = flags; + face->shared.locks = 0; + + hicn_face_udp_key_t key; + hicn_face_udp6_get_key (&local_addr->ip6, &remote_addr->ip6, local_port, + remote_port, &key); + hicn_face_id_t dpoi_index = hicn_dpoi_get_index (face); + + mhash_set_mem (&hicn_face_udp_hashtb, &key, (uword *) & dpoi_index, 0); + + *pfaceid = hicn_dpoi_get_index (face); + dpo_proto = DPO_PROTO_IP6; + } + else + { + return HICN_ERROR_IPS_ADDR_TYPE_NONUNIFORM; + } + + retx_t *retx = vlib_process_signal_event_data (vlib_get_main (), + hicn_mapme_eventmgr_process_node. + index, + HICN_MAPME_EVENT_FACE_ADD, 1, + sizeof (retx_t)); + *retx = (retx_t) + { + .prefix = 0,.dpo = (dpo_id_t) + { + .dpoi_type = hicn_face_udp_type,.dpoi_proto = + dpo_proto,.dpoi_next_node = 0,.dpoi_index = *pfaceid,} + }; + + return ret; +} + +int +hicn_face_udp_del (u32 faceid) +{ + return hicn_face_del (faceid); +} + +u8 * +format_hicn_face_udp (u8 * s, va_list * args) +{ + hicn_face_id_t face_id = va_arg (*args, index_t); + CLIB_UNUSED (u32 indent) = va_arg (*args, u32); + hicn_face_t *face; + hicn_face_udp_t *udp_face; + ip_adjacency_t *adj; + u8 ipv = 0x40; + vnet_main_t *vnm = vnet_get_main (); + + + face = hicn_dpoi_get_from_idx (face_id); + udp_face = (hicn_face_udp_t *) (face->data); + + if (face->shared.flags & HICN_FACE_FLAGS_FACE) + { + ASSERT (face->shared.adj != (adj_index_t) ~ 0); + adj = adj_get (face->shared.adj); + + s = format (s, "%U Face %d: ", format_white_space, indent, face_id); + if (udp_face->hdrs.ip4.ip.ip_version_and_header_length == ipv) + { + s = format (s, "type UDP local %U|%u ", + format_ip4_address, &udp_face->hdrs.ip4.ip.src_address, + clib_net_to_host_u16 (udp_face->hdrs.ip4.udp.src_port)); + s = + format (s, "remote %U|%u ", format_ip4_address, + &udp_face->hdrs.ip4.ip.dst_address, + clib_net_to_host_u16 (udp_face->hdrs.ip4.udp.dst_port)); + s = format (s, "%U", format_vnet_link, adj->ia_link); + s = format (s, " dev %U", format_vnet_sw_interface_name, vnm, + vnet_get_sw_interface (vnm, face->shared.sw_if)); + if ((face->shared.flags & HICN_FACE_FLAGS_DELETED)) + s = format (s, " (deleted)"); + } + else + { + s = format (s, "type UDP local %U|%u ", + format_ip6_address, &udp_face->hdrs.ip6.ip.src_address, + clib_net_to_host_u16 (udp_face->hdrs.ip6.udp.src_port)); + s = + format (s, "remote %U|%u", format_ip6_address, + &udp_face->hdrs.ip6.ip.dst_address, + clib_net_to_host_u16 (udp_face->hdrs.ip6.udp.dst_port)); + s = format (s, "%U", format_vnet_link, adj->ia_link); + s = format (s, " dev %U", format_vnet_sw_interface_name, vnm, + vnet_get_sw_interface (vnm, face->shared.sw_if)); + if ((face->shared.flags & HICN_FACE_FLAGS_DELETED)) + s = format (s, " (deleted)"); + } + } + else + { + s = format (s, "IFace %d: ", format_white_space, indent, face_id); + if (udp_face->hdrs.ip4.ip.ip_version_and_header_length == ipv) + { + s = format (s, "type UDP local %U|%u", + format_ip4_address, &udp_face->hdrs.ip4.ip.src_address, + clib_net_to_host_u16 (udp_face->hdrs.ip4.udp.src_port)); + s = + format (s, " local %U|%u", format_ip4_address, + &udp_face->hdrs.ip4.ip.dst_address, + clib_net_to_host_u16 (udp_face->hdrs.ip4.udp.dst_port)); + s = + format (s, " dev %U", format_vnet_sw_interface_name, vnm, + vnet_get_sw_interface (vnm, face->shared.sw_if)); + if ((face->shared.flags & HICN_FACE_FLAGS_DELETED)) + s = format (s, " (deleted)"); + } + else + { + s = format (s, "type UDP local %U|%u", + format_ip6_address, &udp_face->hdrs.ip6.ip.src_address, + clib_net_to_host_u16 (udp_face->hdrs.ip6.udp.src_port)); + s = + format (s, " remote %U|%u", format_ip6_address, + &udp_face->hdrs.ip6.ip.dst_address, + clib_net_to_host_u16 (udp_face->hdrs.ip6.udp.dst_port)); + s = + format (s, " dev %U", format_vnet_sw_interface_name, vnm, + vnet_get_sw_interface (vnm, face->shared.sw_if)); + if ((face->shared.flags & HICN_FACE_FLAGS_DELETED)) + s = format (s, " (deleted)"); + } + } + + return s; +} + +void +hicn_face_udp_get_dpo (hicn_face_t * face, dpo_id_t * dpo) +{ + hicn_face_udp_t *face_udp = (hicn_face_udp_t *) face->data; + u8 version = + (face_udp->hdrs.ip4.ip.ip_version_and_header_length & 0xf0) >> 4; + return hicn_dpo_udp_create_from_face (face, dpo, + version == + (u8) 4 ? strategy_face_udp4_vlib_edge + : strategy_face_udp6_vlib_edge); +} + +hicn_face_vft_t udp_vft = { + .format_face = format_hicn_face_udp, + .hicn_face_del = hicn_face_udp_del, + .hicn_face_get_dpo = hicn_face_udp_get_dpo, +}; + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/udp/face_udp.h b/hicn-plugin/src/faces/udp/face_udp.h new file mode 100755 index 000000000..8694bad5c --- /dev/null +++ b/hicn-plugin/src/faces/udp/face_udp.h @@ -0,0 +1,248 @@ +/* + * Copyright (c) 2017-2019 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 __HICN_FACE_UDP_H__ +#define __HICN_FACE_UDP_H__ + +#include <vlib/vlib.h> +#include <vnet/vnet.h> +#include <vnet/ip/ip6_packet.h> +#include <vnet/udp/udp_packet.h> + +#include "../face.h" + +/** + * @file + * @brief UDP face + * + * This file containes the definition of UDP faces. + * UDP faces encap and decap an hicn packet into a UDP tunnel. + * Src and dst address in interest and data packets are not considered and + * should be set to 0 (not checked in the forwarder). + */ + +/* Pre-instantiated ip header to fast fill an newly encapsulated packet */ +extern ip4_header_t ip4_header_skl; +extern ip6_header_t ip6_header_skl; + +#define INVALID_UDP_DPO_INDEX ~0 + +/** + * @brief UDP face representation. The following is stored in the data field of + * an hicn_face_t object (see hicn_face.h). A UDP face is identifies by the + * quadruplet (src addr, dst addr, src port, dst port). + */ +typedef struct hicn_face_udp_t_ +{ + /** + * The headers to paint, in packet painting order + */ + union + { + struct + { + ip4_header_t ip; + udp_header_t udp; + } __attribute__ ((packed)) ip4; + struct + { + ip6_header_t ip; + udp_header_t udp; + } __attribute__ ((packed)) ip6; + } __attribute__ ((packed)) hdrs; +} hicn_face_udp_t; + +/* Hast table mapping the udp key with the face id (dpoi_index pointing to and + element in the face pool defined in hicn_face.h)*/ +extern mhash_t hicn_face_udp_hashtb; + +/** + * @brief Hash table key. + */ +typedef struct hicn_face_udp_key_s +{ + ip46_address_t local_addr; + ip46_address_t remote_addr; + u16 local_port; + u16 remote_port; +} hicn_face_udp_key_t; + +/* DPO type for the udp face */ +extern dpo_type_t hicn_face_udp_type; + +/* VFT table for the udp face. Mainly used to format the face in the right way */ +extern hicn_face_vft_t udp_vft; + +/** + * @brief Create the key object for the mhash. Fill in the key object with the + * expected values. + * + * @param local_addr Local address of the UDP tunnel + * @param remote_addr Remote address of the UDP tunnel + * @param local_port Local port of the UDP tunnel + * @param remote_port Remote port of the UDP tunnel + * @param key Pointer to an allocated hicn_face_udp_key_t object + */ +always_inline void +hicn_face_udp4_get_key (const ip4_address_t * local_addr, + const ip4_address_t * remote_addr, + u16 local_port, u16 remote_port, + hicn_face_udp_key_t * key) +{ + + ip46_address_set_ip4 (&(key->local_addr), local_addr); + ip46_address_set_ip4 (&(key->remote_addr), remote_addr); + key->local_port = local_port; + key->remote_port = remote_port; +} + +/** + * @brief Create the key object for the mhash. Fill in the key object with the + * expected values. + * + * @param local_addr Local address of the UDP tunnel + * @param remote_addr Remote address of the UDP tunnel + * @param local_port Local port of the UDP tunnel + * @param remote_port Remote port of the UDP tunnel + * @param key Pointer to an allocated hicn_face_udp_key_t object + */ +always_inline void +hicn_face_udp6_get_key (const ip6_address_t * local_addr, + const ip6_address_t * remote_addr, + u16 local_port, u16 remote_port, + hicn_face_udp_key_t * key) +{ + key->local_addr.ip6 = *local_addr; + key->remote_addr.ip6 = *remote_addr; + key->local_port = local_port; + key->remote_port = remote_port; +} + +/** + * @brief Get the dpoi from the quadruplet that identifies the face. Does not add any lock. + * + * @param local_addr Local address of the UDP tunnel + * @param remote_addr Remote address of the UDP tunnel + * @param local_port Local port of the UDP tunnel + * @param remote_port Remote port of the UDP tunnel + * + * @result Pointer to the face. + */ +always_inline hicn_face_t * +hicn_face_udp4_get (const ip4_address_t * local_addr, + const ip4_address_t * remote_addr, + u16 local_port, u16 remote_port) +{ + hicn_face_udp_key_t key; + + hicn_face_udp4_get_key (local_addr, remote_addr, local_port, remote_port, + &key); + + hicn_face_id_t *dpoi_index = + (hicn_face_id_t *) mhash_get (&hicn_face_udp_hashtb, + &key); + + return dpoi_index == NULL ? NULL : hicn_dpoi_get_from_idx (*dpoi_index); +} + +/** + * @brief Get the dpoi from the quadruplet that identifies the face. Does not add any lock. + * + * @param local_addr Local address of the UDP tunnel (network order) + * @param remote_addr Remote address of the UDP tunnel (network order) + * @param local_port Local port of the UDP tunnel (network order) + * @param remote_port Remote port of the UDP tunnel (network order) + * + * @result Pointer to the face. + */ +always_inline hicn_face_t * +hicn_face_udp6_get (const ip6_address_t * local_addr, + const ip6_address_t * remote_addr, + u16 local_port, u16 remote_port) +{ + hicn_face_udp_key_t key; + + hicn_face_udp6_get_key (local_addr, remote_addr, local_port, remote_port, + &key); + + hicn_face_id_t *dpoi_index = + (hicn_face_id_t *) mhash_get (&hicn_face_udp_hashtb, + &key); + + return dpoi_index == NULL ? NULL : hicn_dpoi_get_from_idx (*dpoi_index); +} + + +/** + * @brief Initialize the udp face module + */ +void hicn_face_udp_init (vlib_main_t * vm); + +/** + * @brief Create a new face ip. API for other modules (e.g., routing) + * + * @param local_addr Local ip v4 or v6 address of the face (network order) + * @param remote_addr Remote ip v4 or v6 address of the face (network order) + * @param local_port Local udp port of the face (network order) + * @param remote_port Remote udp port of the face (network order) + * @param sw_if interface associated to the face + * @param pfaceid Pointer to return the face id + * @return HICN_ERROR_FACE_NO_GLOBAL_IP if the face does not have a globally + * reachable ip address, otherwise HICN_ERROR_NONE + */ +int hicn_face_udp_add (const ip46_address_t * local_addr, + const ip46_address_t * remote_addr, u16 local_port, + u16 remote_port, u32 swif, hicn_face_id_t * pfaceid); + +/** + * @brief Delete an ip face + * + * @param face_id Id of the face to delete + * @return HICN_ERROR_FACE_NOT_FOUND if the face does not exist, otherwise + * HICN_ERROR_NONE + */ +int hicn_face_udp_del (hicn_face_id_t faceid); + +/** + * @brief Format a UDP face + * + * @param s Pointer to a previous string. If null it will be initialize + * @param args Array storing input values. Expected u32 indent and u32 face_id + * @return String with the formatted face + */ +u8 *format_hicn_face_udp (u8 * s, va_list * args); + +/** + * @brief Create a dpo from a udp face + * + * @param face Face from which to create the dpo + * @return the dpo + */ +void hicn_face_udp_get_dpo (hicn_face_t * face, dpo_id_t * dpo); + +/** + * @brief Init some internal structures + */ +void hicn_face_udp_init_internal (void); + +#endif // __HICN_FACE_UDP_H__ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/udp/face_udp_cli.c b/hicn-plugin/src/faces/udp/face_udp_cli.c new file mode 100755 index 000000000..7bb172ce8 --- /dev/null +++ b/hicn-plugin/src/faces/udp/face_udp_cli.c @@ -0,0 +1,164 @@ +/* + * Copyright (c) 2017-2019 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 "face_udp.h" +#include "dpo_udp.h" + +#include <vnet/vnet.h> +#include <vnet/dpo/dpo.h> +#include <vlib/vlib.h> +#include <vnet/ip/format.h> + +#define HICN_FACE_NONE 0 +#define HICN_FACE_DELETE 1 +#define HICN_FACE_ADD 2 + + +static clib_error_t * +hicn_face_udp_cli_set_command_fn (vlib_main_t * vm, + unformat_input_t * main_input, + vlib_cli_command_t * cmd) +{ + vnet_main_t *vnm = vnet_get_main (); + ip46_address_t src_addr; + u32 src_port = 0; + ip46_address_t dst_addr; + u32 dst_port = 0; + hicn_face_id_t face_id = HICN_FACE_NULL; + int ret = HICN_ERROR_NONE; + int sw_if; + int face_op = HICN_FACE_NONE; + + ip46_address_reset (&src_addr); + ip46_address_reset (&dst_addr); + /* Get a line of input. */ + unformat_input_t _line_input, *line_input = &_line_input; + if (!unformat_user (main_input, unformat_line_input, line_input)) + { + return (0); + } + + while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (line_input, "del")) + { + if (unformat (line_input, "id %d", &face_id)) + face_op = HICN_FACE_DELETE; + else + { + return clib_error_return (0, "missing face id"); + } + } + else if (unformat (line_input, "add")) + { + face_op = HICN_FACE_ADD; + if (unformat + (line_input, "src_addr %U port %u dst_addr %U port %u intfc %U", + unformat_ip46_address, &src_addr, IP46_TYPE_ANY, &src_port, + unformat_ip46_address, &dst_addr, IP46_TYPE_ANY, &dst_port, + unformat_vnet_sw_interface, vnm, &sw_if)); + else + { + return clib_error_return (0, "%s '%U'", + get_error_string + (HICN_ERROR_CLI_INVAL), + format_unformat_error, line_input); + } + } + else + { + return clib_error_return (0, "%s '%U'", + get_error_string (HICN_ERROR_CLI_INVAL), + format_unformat_error, line_input); + } + } + + if (face_id != HICN_FACE_NULL) + { + if (!hicn_dpoi_idx_is_valid (face_id)) + { + return clib_error_return (0, "%s, face_id %d not valid", + get_error_string (ret), face_id); + } + } + + int rv; + switch (face_op) + { + case HICN_FACE_ADD: + + /* Check for presence of next hop address */ + if (((dst_addr.as_u64[0] == (u64) 0) && (dst_addr.as_u64[1] == (u64) 0)) + || dst_port == 0) + { + return clib_error_return (0, "dst address and port not specified"); + } + + if (((src_addr.as_u64[0] == (u64) 0) && (src_addr.as_u64[1] == (u64) 0)) + || src_port == 0) + { + return clib_error_return (0, "src address not specified"); + } + + rv = + hicn_face_udp_add (&src_addr, &dst_addr, + clib_host_to_net_u16 (src_port), + clib_host_to_net_u16 (dst_port), sw_if, &face_id); + if (rv == HICN_ERROR_NONE) + { + vlib_cli_output (vm, "Face id: %d", face_id); + } + else + { + return clib_error_return (0, get_error_string (rv)); + } + break; + case HICN_FACE_DELETE: + rv = hicn_face_udp_del (face_id); + if (rv == HICN_ERROR_NONE) + { + vlib_cli_output (vm, "Face %d deleted", face_id); + } + else + { + return clib_error_return (0, get_error_string (rv)); + } + break; + default: + return clib_error_return (0, "Operation (%d) not implemented", face_op); + break; + } + return (rv == HICN_ERROR_NONE) ? 0 : clib_error_return (0, "%s\n", + get_error_string + (rv)); +} + +/* cli declaration for 'cfg face' */ +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (hicn_face_udp_cli_set_command, static) = +{ + .path = "hicn face udp", + .short_help = "hicn face udp {add src_addr <src_address> port <src_port > dst_addr <dst_address> port <dst_port>} intfc <interface> | {del id <face_id>}", + .function = hicn_face_udp_cli_set_command_fn, +}; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/udp/face_udp_node.c b/hicn-plugin/src/faces/udp/face_udp_node.c new file mode 100755 index 000000000..74d0b1864 --- /dev/null +++ b/hicn-plugin/src/faces/udp/face_udp_node.c @@ -0,0 +1,864 @@ +/* + * Copyright (c) 2017-2019 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/ip/ip_packet.h> + +#include "face_udp.h" +#include "face_udp_node.h" +#include "dpo_udp.h" +#include "../face.h" +#include "../../strategy.h" +#include "../../strategy_dpo_manager.h" +#include "../../hicn.h" + +/** + * @File + * + * Definition of the nodes for udp faces. + */ + +vlib_node_registration_t hicn_face_udp4_input_node; +vlib_node_registration_t hicn_face_udp6_input_node; +vlib_node_registration_t hicn_face_udp4_output_node; +vlib_node_registration_t hicn_face_udp6_output_node; + +static char *hicn_face_udp4_input_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + +static char *hicn_face_udp6_input_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; +} hicn_face_udp4_input_trace_t; + +typedef enum +{ + HICN_FACE_UDP4_INPUT_NEXT_DATA, + HICN_FACE_UDP4_INPUT_NEXT_MAPME, + HICN_FACE_UDP4_INPUT_NEXT_ERROR_DROP, + HICN_FACE_UDP4_INPUT_N_NEXT, +} hicn_face_udp4_input_next_t; + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; +} hicn_face_udp6_input_trace_t; + +typedef enum +{ + HICN_FACE_UDP6_INPUT_NEXT_DATA, + HICN_FACE_UDP6_INPUT_NEXT_MAPME, + HICN_FACE_UDP6_INPUT_NEXT_ERROR_DROP, + HICN_FACE_UDP6_INPUT_N_NEXT, +} hicn_face_udp6_input_next_t; + +#define ERROR_INPUT_UDP4 HICN_FACE_UDP4_INPUT_NEXT_ERROR_DROP +#define ERROR_INPUT_UDP6 HICN_FACE_UDP6_INPUT_NEXT_ERROR_DROP + +#define NEXT_MAPME_UDP4 HICN_FACE_UDP4_INPUT_NEXT_MAPME +#define NEXT_MAPME_UDP6 HICN_FACE_UDP6_INPUT_NEXT_MAPME +#define NEXT_DATA_UDP4 HICN_FACE_UDP4_INPUT_NEXT_DATA +#define NEXT_DATA_UDP6 HICN_FACE_UDP6_INPUT_NEXT_DATA + +#define IP_HEADER_4 ip4_header_t +#define IP_HEADER_6 ip6_header_t + +#define HICN_DPO_UDP_LOCK_IP4 hicn_dpo_udp4_lock +#define HICN_DPO_UDP_LOCK_IP6 hicn_dpo_udp6_lock + +#define TRACE_INPUT_PKT_UDP4 hicn_face_udp4_input_trace_t +#define TRACE_INPUT_PKT_UDP6 hicn_face_udp6_input_trace_t + +#define face_input_x1(ipv) \ + do { \ + int ret; \ + vlib_buffer_t *b0; \ + u32 bi0; \ + u32 next0 = ERROR_INPUT_UDP##ipv; \ + IP_HEADER_##ipv * ip_hdr = NULL; \ + u8 * inner_ip_hdr = NULL; \ + udp_header_t * udp_hdr = NULL; \ + hicn_buffer_t * hicnb0; \ + /* Prefetch for next iteration. */ \ + if (n_left_from > 1) \ + { \ + vlib_buffer_t *b1; \ + b1 = vlib_get_buffer (vm, from[1]); \ + CLIB_PREFETCH (b1, CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b1->data, CLIB_CACHE_LINE_BYTES , LOAD); \ + } \ + /* Dequeue a packet buffer */ \ + bi0 = from[0]; \ + from += 1; \ + n_left_from -= 1; \ + to_next[0] = bi0; \ + to_next += 1; \ + n_left_to_next -= 1; \ + \ + b0 = vlib_get_buffer (vm, bi0); \ + ip_hdr = (IP_HEADER_##ipv *) vlib_buffer_get_current(b0); \ + udp_hdr = (udp_header_t *) (ip_hdr + 1); \ + hicnb0 = hicn_get_buffer(b0); \ + \ + inner_ip_hdr = (u8 *)(udp_hdr + 1); \ + u8 is_v6 = ((inner_ip_hdr[0] & 2) >> 1); \ + u8 is_icmp = is_v6*(inner_ip_hdr[7] == IPPROTO_ICMPV6) + \ + (1 - is_v6)*(inner_ip_hdr[10] == IPPROTO_ICMPV4); \ + \ + ret = HICN_DPO_UDP_LOCK_IP##ipv \ + (&(hicnb0->face_dpo_id), \ + &(ip_hdr->dst_address), \ + &(ip_hdr->src_address), \ + (udp_hdr->dst_port), \ + (udp_hdr->src_port), \ + &hicnb0->is_appface); \ + \ + if ( PREDICT_FALSE(ret != HICN_ERROR_NONE) ) \ + { \ + next0 = ERROR_INPUT_UDP##ipv; \ + } \ + else \ + { \ + next0 = is_icmp*NEXT_MAPME_UDP##ipv + \ + (1-is_icmp)*NEXT_DATA_UDP##ipv; \ + stats.pkts_data_count += 1; \ + \ + vlib_buffer_advance(b0, sizeof(IP_HEADER_##ipv) + \ + sizeof(udp_header_t)); \ + } \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b0->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_INPUT_PKT_UDP##ipv *t = \ + vlib_add_trace (vm, node, b0, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_CONTENT; \ + t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; \ + t->next_index = next0; \ + } \ + \ + \ + /* 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); \ + }while(0) \ + +#define face_input_x2(ipv) \ + do { \ + int ret0, ret1; \ + vlib_buffer_t *b0, *b1; \ + u32 bi0, bi1; \ + u32 next0 = ERROR_INPUT_UDP##ipv; \ + u32 next1 = ERROR_INPUT_UDP##ipv; \ + IP_HEADER_##ipv * ip_hdr0 = NULL; \ + IP_HEADER_##ipv * ip_hdr1 = NULL; \ + u8 * inner_ip_hdr0 = NULL; \ + u8 * inner_ip_hdr1 = NULL; \ + udp_header_t * udp_hdr0 = NULL; \ + udp_header_t * udp_hdr1 = NULL; \ + hicn_buffer_t *hicnb0, *hicnb1; \ + \ + /* Prefetch for next iteration. */ \ + { \ + vlib_buffer_t *b2, *b3; \ + b2 = vlib_get_buffer (vm, from[2]); \ + b3 = vlib_get_buffer (vm, from[3]); \ + CLIB_PREFETCH (b2, CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b3, CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b2->data, CLIB_CACHE_LINE_BYTES , LOAD); \ + CLIB_PREFETCH (b3->data, CLIB_CACHE_LINE_BYTES , LOAD); \ + } \ + \ + /* Dequeue a packet buffer */ \ + bi0 = from[0]; \ + bi1 = from[1]; \ + from += 2; \ + n_left_from -= 2; \ + to_next[0] = bi0; \ + to_next[1] = bi1; \ + to_next += 2; \ + n_left_to_next -= 2; \ + \ + b0 = vlib_get_buffer (vm, bi0); \ + b1 = vlib_get_buffer (vm, bi1); \ + ip_hdr0 = (IP_HEADER_##ipv *) vlib_buffer_get_current(b0); \ + ip_hdr1 = (IP_HEADER_##ipv *) vlib_buffer_get_current(b1); \ + udp_hdr0 = (udp_header_t *) (ip_hdr0 + 1); \ + udp_hdr1 = (udp_header_t *) (ip_hdr1 + 1); \ + hicnb0 = hicn_get_buffer(b0); \ + hicnb1 = hicn_get_buffer(b1); \ + \ + inner_ip_hdr0 = (u8 *)(udp_hdr0 + 1); \ + u8 is_v6_0 = ((inner_ip_hdr0[0] & 2) >> 1); \ + u8 is_icmp0 = is_v6_0*(inner_ip_hdr0[7] == IPPROTO_ICMPV6) + \ + (1 - is_v6_0)*(inner_ip_hdr0[10] == IPPROTO_ICMPV4); \ + \ + inner_ip_hdr1 = (u8 *)(udp_hdr1 + 1); \ + u8 is_v6_1 = ((inner_ip_hdr1[0] & 2) >> 1); \ + u8 is_icmp1 = is_v6_1*(inner_ip_hdr1[7] == IPPROTO_ICMPV6) + \ + (1 - is_v6_1)*(inner_ip_hdr1[10] == IPPROTO_ICMPV4); \ + \ + ret0 = HICN_DPO_UDP_LOCK_IP##ipv \ + (&(hicnb0->face_dpo_id), \ + &(ip_hdr0->dst_address), \ + &(ip_hdr0->src_address), \ + (udp_hdr0->dst_port), \ + (udp_hdr0->src_port), \ + &hicnb0->is_appface); \ + \ + ret1 = HICN_DPO_UDP_LOCK_IP##ipv \ + (&(hicnb1->face_dpo_id), \ + &(ip_hdr1->dst_address), \ + &(ip_hdr1->src_address), \ + (udp_hdr1->dst_port), \ + (udp_hdr1->src_port), \ + &hicnb1->is_appface); \ + \ + if ( PREDICT_FALSE(ret0 != HICN_ERROR_NONE) ) \ + { \ + next0 = ERROR_INPUT_UDP##ipv; \ + } \ + else \ + { \ + stats.pkts_data_count += 1; \ + next0 = is_icmp0*NEXT_MAPME_UDP##ipv + \ + (1-is_icmp0)*NEXT_DATA_UDP##ipv; \ + \ + vlib_buffer_advance(b0, sizeof(IP_HEADER_##ipv) + \ + sizeof(udp_header_t)); \ + } \ + \ + if ( PREDICT_FALSE(ret1 != HICN_ERROR_NONE) ) \ + { \ + next1 = ERROR_INPUT_UDP##ipv; \ + } \ + else \ + { \ + stats.pkts_data_count += 1; \ + next1 = is_icmp1*NEXT_MAPME_UDP##ipv + \ + (1-is_icmp1)*NEXT_DATA_UDP##ipv; \ + \ + vlib_buffer_advance(b1, sizeof(IP_HEADER_##ipv) + \ + sizeof(udp_header_t)); \ + } \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b0->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_INPUT_PKT_UDP##ipv *t = \ + vlib_add_trace (vm, node, b0, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_CONTENT; \ + t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; \ + t->next_index = next0; \ + } \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b1->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_INPUT_PKT_UDP##ipv *t = \ + vlib_add_trace (vm, node, b1, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_CONTENT; \ + t->sw_if_index = vnet_buffer (b1)->sw_if_index[VLIB_RX]; \ + t->next_index = next1; \ + } \ + \ + \ + /* Verify speculative enqueue, maybe switch current next frame */ \ + vlib_validate_buffer_enqueue_x2 (vm, node, next_index, \ + to_next, n_left_to_next, \ + bi0, bi1, next0, next1); \ + }while(0) \ + +static uword +hicn_face_udp4_input_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + u32 n_left_from, *from, *to_next, next_index; + + from = vlib_frame_vector_args (frame); + n_left_from = frame->n_vectors; + next_index = node->cached_next_index; + vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; + + while (n_left_from > 0) + { + u32 n_left_to_next; + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + /* Dual loop, X2 */ + while (n_left_from >= 4 && n_left_to_next >= 2) + { + face_input_x2 (4); + } + + /* Dual loop, X1 */ + while (n_left_from > 0 && n_left_to_next > 0) + { + face_input_x1 (4); + } + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + vlib_node_increment_counter (vm, node->node_index, + HICNFWD_ERROR_DATAS, stats.pkts_data_count); + + return (frame->n_vectors); +} + +/* packet trace format function */ +static u8 * +hicn_face_udp4_input_format_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 *); + hicn_face_udp4_input_trace_t *t = + va_arg (*args, hicn_face_udp4_input_trace_t *); + + s = format (s, "FACE_UDP4_INPUT: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + +/* + * Node registration for the interest forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (hicn_face_udp4_input_node) = +{ + .function = hicn_face_udp4_input_node_fn, + .name = "hicn-face-udp4-input", + .vector_size = sizeof (u32), + .format_trace = hicn_face_udp4_input_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN (hicn_face_udp4_input_error_strings), + .error_strings = hicn_face_udp4_input_error_strings, + .n_next_nodes = HICN_FACE_UDP4_INPUT_N_NEXT, + /* edit / add dispositions here */ + .next_nodes = + { + [HICN_FACE_UDP4_INPUT_NEXT_DATA] = "hicn-data-pcslookup", + [HICN_FACE_UDP4_INPUT_NEXT_MAPME] = "hicn-mapme-ack", + [HICN_FACE_UDP4_INPUT_NEXT_ERROR_DROP] = "error-drop", + }, +}; +/* *INDENT-ON* */ + + +static uword +hicn_face_udp6_input_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + u32 n_left_from, *from, *to_next, next_index; + + from = vlib_frame_vector_args (frame); + n_left_from = frame->n_vectors; + next_index = node->cached_next_index; + vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; + + while (n_left_from > 0) + { + u32 n_left_to_next; + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + /* Dual loop, X2 */ + while (n_left_from >= 4 && n_left_to_next >= 2) + { + face_input_x2 (6); + } + + /* Dual loop, X1 */ + while (n_left_from > 0 && n_left_to_next > 0) + { + face_input_x1 (6); + } + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + vlib_node_increment_counter (vm, node->node_index, + HICNFWD_ERROR_PROCESSED, stats.pkts_processed); + + vlib_node_increment_counter (vm, node->node_index, + HICNFWD_ERROR_DATAS, stats.pkts_data_count); + + return (frame->n_vectors); +} + +/* packet trace format function */ +static u8 * +hicn_face_udp6_input_format_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 *); + hicn_face_udp6_input_trace_t *t = + va_arg (*args, hicn_face_udp6_input_trace_t *); + + s = format (s, "FACE_UDP6_INPUT: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + +/* + * Node registration for the interest forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (hicn_face_udp6_input_node) = +{ + .function = hicn_face_udp6_input_node_fn, + .name = "hicn-face-udp6-input", + .vector_size = sizeof (u32), + .format_trace = hicn_face_udp6_input_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN (hicn_face_udp6_input_error_strings), + .error_strings = hicn_face_udp6_input_error_strings, + .n_next_nodes = HICN_FACE_UDP6_INPUT_N_NEXT, + /* edit / add dispositions here */ + .next_nodes = + { + [HICN_FACE_UDP6_INPUT_NEXT_DATA] = "hicn-data-pcslookup", + [HICN_FACE_UDP6_INPUT_NEXT_MAPME] = "hicn-mapme-ack", + [HICN_FACE_UDP6_INPUT_NEXT_ERROR_DROP] = "error-drop", + }, +}; +/* *INDENT-ON* */ + +/******* Face Output *******/ + +always_inline void +hicn_face_udp4_encap (vlib_main_t * vm, + vlib_buffer_t * outer_b0, + hicn_face_t * face, u32 * next) +{ + u16 old_l0 = 0, new_l0; + ip_csum_t sum0; + ip4_header_t *ip0; + udp_header_t *udp0; + hicn_face_udp_t *face_udp = (hicn_face_udp_t *) face->data; + ip_adjacency_t *adj = adj_get (face->shared.adj); + + /* ip */ + ip0 = vlib_buffer_get_current (outer_b0); + clib_memcpy (ip0, &(face_udp->hdrs.ip4.ip), sizeof (ip4_header_t) + + sizeof (udp_header_t)); + + /* Fix UDP length */ + udp0 = (udp_header_t *) (ip0 + 1); + + new_l0 = + clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, outer_b0) - + sizeof (*ip0)); + udp0->length = new_l0; + + old_l0 = ip0->length; + ip0->length = + clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, outer_b0)); + + sum0 = ip0->checksum; + + //old_l0 always 0, see the rewrite setup + new_l0 = ip0->length; + + sum0 = ip_csum_update (sum0, old_l0, new_l0, ip4_header_t, + length /* changed member */ ); + ip0->checksum = sum0; + + vnet_buffer (outer_b0)->ip.adj_index[VLIB_TX] = face->shared.adj; + + *next = adj->lookup_next_index; +} + +always_inline void +hicn_face_udp6_encap (vlib_main_t * vm, + vlib_buffer_t * outer_b0, + hicn_face_t * face, u32 * next) +{ + int bogus0; + u16 new_l0; + ip6_header_t *ip0; + udp_header_t *udp0; + hicn_face_udp_t *face_udp = (hicn_face_udp_t *) face->data; + ip_adjacency_t *adj = adj_get (face->shared.adj); + + /* ip */ + ip0 = vlib_buffer_get_current (outer_b0); + clib_memcpy (ip0, &(face_udp->hdrs.ip6.ip), sizeof (ip6_header_t) + + sizeof (udp_header_t)); + new_l0 = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, outer_b0) + - sizeof (*ip0)); + ip0->payload_length = new_l0; + + /* Fix UDP length */ + udp0 = (udp_header_t *) (ip0 + 1); + udp0->length = new_l0; + + udp0->checksum = + ip6_tcp_udp_icmp_compute_checksum (vm, outer_b0, ip0, &bogus0); + + ASSERT (bogus0 == 0); + + if (udp0->checksum == 0) + udp0->checksum = 0xffff; + + vnet_buffer (outer_b0)->ip.adj_index[VLIB_TX] = face->shared.adj; + + *next = adj->lookup_next_index; +} + +static char *hicn_face_udp4_output_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + +static char *hicn_face_udp6_output_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; +} hicn_face_udp4_output_trace_t; + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; +} hicn_face_udp6_output_trace_t; + +#define HICN_FACE_UDP_ENCAP_IP4 hicn_face_udp4_encap +#define HICN_FACE_UDP_ENCAP_IP6 hicn_face_udp6_encap + +#define TRACE_OUTPUT_PKT_UDP4 hicn_face_udp4_output_trace_t +#define TRACE_OUTPUT_PKT_UDP6 hicn_face_udp6_output_trace_t + +#define IP_HEADER_4 ip4_header_t +#define IP_HEADER_6 ip6_header_t + +#define face_output_x1(ipv) \ + do { \ + vlib_buffer_t *b0; \ + u32 bi0; \ + u32 next0 = IP_LOOKUP_NEXT_DROP; \ + hicn_face_t * face; \ + \ + /* Prefetch for next iteration. */ \ + if (n_left_from > 1) \ + { \ + vlib_buffer_t *b1; \ + b1 = vlib_get_buffer (vm, from[1]); \ + CLIB_PREFETCH (b1, CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b1->data, CLIB_CACHE_LINE_BYTES , LOAD); \ + } \ + /* Dequeue a packet buffer */ \ + bi0 = from[0]; \ + from += 1; \ + n_left_from -= 1; \ + \ + b0 = vlib_get_buffer (vm, bi0); \ + face = \ + hicn_dpoi_get_from_idx(vnet_buffer (b0)->ip.adj_index[VLIB_TX]); \ + \ + if (PREDICT_TRUE(face != NULL)) \ + { \ + /* Adjust vlib buffer. Create space for the udp tunnel. */ \ + vlib_buffer_advance(b0, -(sizeof (IP_HEADER_##ipv) + \ + sizeof (udp_header_t))); \ + \ + \ + HICN_FACE_UDP_ENCAP_IP##ipv \ + (vm, b0, face, &next0); \ + stats.pkts_interest_count += 1; \ + } \ + \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b0->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_OUTPUT_PKT_UDP##ipv *t = \ + vlib_add_trace (vm, node, b0, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_INTEREST; \ + t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; \ + t->next_index = next0; \ + } \ + \ + to_next[0] = bi0; \ + to_next += 1; \ + n_left_to_next -= 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); \ + } while(0) \ + + +#define face_output_x2(ipv) \ + do { \ + vlib_buffer_t *b0, *b1; \ + u32 bi0, bi1; \ + u32 next0 = IP_LOOKUP_NEXT_DROP; \ + u32 next1 = IP_LOOKUP_NEXT_DROP; \ + hicn_face_t *face0, *face1; \ + \ + /* Prefetch for next iteration. */ \ + { \ + vlib_buffer_t *b2, *b3; \ + b2 = vlib_get_buffer (vm, from[2]); \ + b3 = vlib_get_buffer (vm, from[3]); \ + CLIB_PREFETCH (b2, CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b3, CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b2->data, CLIB_CACHE_LINE_BYTES , LOAD); \ + CLIB_PREFETCH (b3->data, CLIB_CACHE_LINE_BYTES , LOAD); \ + } \ + \ + /* Dequeue a packet buffer */ \ + bi0 = from[0]; \ + bi1 = from[1]; \ + from += 2; \ + n_left_from -= 2; \ + to_next[0] = bi0; \ + to_next[1] = bi1; \ + to_next += 2; \ + n_left_to_next -= 2; \ + \ + b0 = vlib_get_buffer (vm, bi0); \ + b1 = vlib_get_buffer (vm, bi1); \ + \ + face0 = \ + hicn_dpoi_get_from_idx(vnet_buffer (b0)->ip.adj_index[VLIB_TX]); \ + face1 = \ + hicn_dpoi_get_from_idx(vnet_buffer (b1)->ip.adj_index[VLIB_TX]); \ + \ + if (PREDICT_TRUE(face0 != NULL)) \ + { \ + /* Adjust vlib buffer. Create space for the udp tunnel. */ \ + vlib_buffer_advance(b0, -(sizeof (IP_HEADER_##ipv) + \ + sizeof (udp_header_t))); \ + \ + \ + HICN_FACE_UDP_ENCAP_IP##ipv \ + (vm, b0, face0, &next0); \ + stats.pkts_interest_count += 1; \ + } \ + \ + if (PREDICT_TRUE(face1 != NULL)) \ + { \ + /* Adjust vlib buffer. Create space for the udp tunnel. */ \ + vlib_buffer_advance(b1, -(sizeof (IP_HEADER_##ipv) + \ + sizeof (udp_header_t))); \ + \ + \ + HICN_FACE_UDP_ENCAP_IP##ipv \ + (vm, b1, face1, &next1); \ + stats.pkts_interest_count += 1; \ + } \ + \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b0->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_OUTPUT_PKT_UDP##ipv *t = \ + vlib_add_trace (vm, node, b0, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_INTEREST; \ + t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; \ + t->next_index = next0; \ + } \ + \ + /* Verify speculative enqueue, maybe switch current next frame */ \ + vlib_validate_buffer_enqueue_x2 (vm, node, next_index, \ + to_next, n_left_to_next, \ + bi0, bi1, next0, next1); \ + } while(0) \ + + +static uword +hicn_face_udp4_output_node_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + u32 n_left_from, *from, *to_next, next_index; + vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; + + 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); + + /* Dual loop, X2 */ + while (n_left_from >= 4 && n_left_to_next >= 2) + { + face_output_x2 (4); + } + + /* Dual loop, X1 */ + while (n_left_from > 0 && n_left_to_next > 0) + { + face_output_x1 (4); + } + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + vlib_node_increment_counter (vm, node->node_index, + HICNFWD_ERROR_INTERESTS, + stats.pkts_interest_count); + + return (frame->n_vectors); +} + +/* packet trace format function */ +static u8 * +hicn_face_udp4_output_format_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 *); + hicn_face_udp4_output_trace_t *t = + va_arg (*args, hicn_face_udp4_output_trace_t *); + + s = format (s, "FACE_UDP4_OUTPUT: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + +/* *INDENT-OFF* */ +/* + * Node registration for the interest forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (hicn_face_udp4_output_node) = +{ + .function = hicn_face_udp4_output_node_fn, + .name = "hicn-face-udp4-output", + .vector_size = sizeof (u32), + .format_trace = hicn_face_udp4_output_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN (hicn_face_udp4_output_error_strings), + .error_strings = hicn_face_udp4_output_error_strings, + .n_next_nodes = IP4_LOOKUP_N_NEXT, + /* Reusing the list of nodes from lookup to be compatible with arp */ + .next_nodes = IP4_LOOKUP_NEXT_NODES, +}; +/* *INDENT-ON* */ + +/* *INDENT-ON* */ + +static uword +hicn_face_udp6_output_node_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + u32 n_left_from, *from, *to_next, next_index; + vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; + + 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); + + /* Dual loop, X2 */ + while (n_left_from >= 4 && n_left_to_next >= 2) + { + face_output_x2 (6); + } + + while (n_left_from > 0 && n_left_to_next > 0) + { + face_output_x1 (6); + } + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + vlib_node_increment_counter (vm, node->node_index, + HICNFWD_ERROR_INTERESTS, + stats.pkts_interest_count); + + return (frame->n_vectors); +} + +/* packet trace format function */ +static u8 * +hicn_face_udp6_output_format_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 *); + hicn_face_udp6_output_trace_t *t = + va_arg (*args, hicn_face_udp6_output_trace_t *); + + s = format (s, "FACE_UDP6_OUTPUT: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + +/* *INDENT-OFF* */ +/* + * Node registration for the interest forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (hicn_face_udp6_output_node) = +{ + .function = hicn_face_udp6_output_node_fn, + .name = "hicn-face-udp6-output", + .vector_size = sizeof (u32), + .format_trace = hicn_face_udp6_output_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN (hicn_face_udp6_output_error_strings), + .error_strings = hicn_face_udp6_output_error_strings, + .n_next_nodes = IP6_LOOKUP_N_NEXT, + /* Reusing the list of nodes from lookup to be compatible with neighbour discovery */ + .next_nodes = IP6_LOOKUP_NEXT_NODES, +}; +/* *INDENT-ON* */ + +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/udp/face_udp_node.h b/hicn-plugin/src/faces/udp/face_udp_node.h new file mode 100755 index 000000000..c759312c8 --- /dev/null +++ b/hicn-plugin/src/faces/udp/face_udp_node.h @@ -0,0 +1,35 @@ +/* + * Copyright (c) 2017-2019 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 __HICN_FACE_UDP_NODE_H__ +#define __HICN_FACE_UDP_NODE_H__ + +#include <vlib/vlib.h> +#include <vnet/vnet.h> + +extern vlib_node_registration_t hicn_face_udp4_input_node; +extern vlib_node_registration_t hicn_face_udp6_input_node; +extern vlib_node_registration_t hicn_face_udp4_output_node; +extern vlib_node_registration_t hicn_face_udp6_output_node; + +#endif // __HICN_FACE_UDP_NODE_H__ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/udp/iface_udp_node.c b/hicn-plugin/src/faces/udp/iface_udp_node.c new file mode 100755 index 000000000..ddea31b4c --- /dev/null +++ b/hicn-plugin/src/faces/udp/iface_udp_node.c @@ -0,0 +1,894 @@ +/* + * Copyright (c) 2017-2019 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 "iface_udp_node.h" +#include "dpo_udp.h" +#include "../face.h" + +#include "../../infra.h" +#include "../../hicn.h" + +/** + * @File + * + * Definition of the nodes for udp incomplete faces. + */ + +vlib_node_registration_t hicn_iface_udp4_input_node; +vlib_node_registration_t hicn_iface_udp6_input_node; +vlib_node_registration_t hicn_iface_udp4_output_node; +vlib_node_registration_t hicn_iface_udp6_output_node; + +u32 data_fwd_face_udp4_vlib_edge; +u32 data_fwd_face_udp6_vlib_edge; + +void +hicn_iface_udp_init (vlib_main_t * vm) +{ + data_fwd_face_udp4_vlib_edge = vlib_node_add_next (vm, + hicn_data_fwd_node.index, + hicn_iface_udp4_output_node. + index); + + data_fwd_face_udp6_vlib_edge = vlib_node_add_next (vm, + hicn_data_fwd_node.index, + hicn_iface_udp6_output_node. + index); + + u32 temp_index4 = vlib_node_add_next (vm, + hicn_interest_hitcs_node.index, + hicn_iface_udp4_output_node.index); + u32 temp_index6 = vlib_node_add_next (vm, + hicn_interest_hitcs_node.index, + hicn_iface_udp6_output_node.index); + + ASSERT (temp_index4 == data_fwd_face_udp4_vlib_edge); + ASSERT (temp_index6 == data_fwd_face_udp6_vlib_edge); +} + +static char *hicn_iface_udp4_input_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + +static char *hicn_iface_udp6_input_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + +u32 +get_face_udp4_output_node (void) +{ + return data_fwd_face_udp4_vlib_edge; +} + +u32 +get_face_udp6_output_node (void) +{ + return data_fwd_face_udp6_vlib_edge; +} + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; +} hicn_iface_udp4_input_trace_t; + +typedef enum +{ + HICN_IFACE_UDP4_INPUT_NEXT_INTEREST, + HICN_IFACE_UDP4_INPUT_NEXT_MAPME, + HICN_IFACE_UDP4_INPUT_NEXT_ERROR_DROP, + HICN_IFACE_UDP4_INPUT_N_NEXT, +} hicn_iface_udp4_input_next_t; + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; +} hicn_iface_udp6_input_trace_t; + +typedef enum +{ + HICN_IFACE_UDP6_INPUT_NEXT_INTEREST, + HICN_IFACE_UDP6_INPUT_NEXT_MAPME, + HICN_IFACE_UDP6_INPUT_NEXT_ERROR_DROP, + HICN_IFACE_UDP6_INPUT_N_NEXT, +} hicn_iface_udp6_input_next_t; + +#define ERROR_INPUT_UDP4 HICN_IFACE_UDP4_INPUT_NEXT_ERROR_DROP +#define ERROR_INPUT_UDP6 HICN_IFACE_UDP6_INPUT_NEXT_ERROR_DROP + +#define IP_HEADER_4 ip4_header_t +#define IP_HEADER_6 ip6_header_t + +#define NEXT_MAPME_UDP4 HICN_IFACE_UDP4_INPUT_NEXT_MAPME +#define NEXT_MAPME_UDP6 HICN_IFACE_UDP6_INPUT_NEXT_MAPME + +#define NEXT_INTEREST_UDP4 HICN_IFACE_UDP4_INPUT_NEXT_INTEREST +#define NEXT_INTEREST_UDP6 HICN_IFACE_UDP6_INPUT_NEXT_INTEREST + +#define HICN_IFACE_UDP_ADD_LOCK_IP4 hicn_dpo_udp4_add_and_lock +#define HICN_IFACE_UDP_ADD_LOCK_IP6 hicn_dpo_udp6_add_and_lock + +#define GET_FACE_UDP4 get_face_udp4_output_node +#define GET_FACE_UDP6 get_face_udp6_output_node + +#define TRACE_INPUT_PKT_UDP4 hicn_iface_udp4_input_trace_t +#define TRACE_INPUT_PKT_UDP6 hicn_iface_udp6_input_trace_t + +#define iface_input_x1(ipv) \ + do { \ + vlib_buffer_t *b0; \ + u32 bi0; \ + u32 next0 = ERROR_INPUT_UDP##ipv; \ + IP_HEADER_##ipv * ip_hdr = NULL; \ + u8 * inner_ip_hdr = NULL; \ + udp_header_t * udp_hdr = NULL; \ + hicn_buffer_t * hicnb0; \ + /* Prefetch for next iteration. */ \ + if (n_left_from > 1) \ + { \ + vlib_buffer_t *b1; \ + b1 = vlib_get_buffer (vm, from[1]); \ + CLIB_PREFETCH (b1, CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b1->data, CLIB_CACHE_LINE_BYTES , LOAD); \ + } \ + /* Dequeue a packet buffer */ \ + bi0 = from[0]; \ + from += 1; \ + n_left_from -= 1; \ + to_next[0] = bi0; \ + to_next += 1; \ + n_left_to_next -= 1; \ + \ + b0 = vlib_get_buffer (vm, bi0); \ + ip_hdr = (IP_HEADER_##ipv *) vlib_buffer_get_current(b0); \ + udp_hdr = (udp_header_t *) (ip_hdr + 1); \ + hicnb0 = hicn_get_buffer(b0); \ + \ + stats.pkts_interest_count += 1; \ + \ + inner_ip_hdr = (u8 *)(udp_hdr + 1); \ + u8 is_v6 = ((inner_ip_hdr[0] & 2) >> 1); \ + u8 is_icmp = is_v6*(inner_ip_hdr[7] == IPPROTO_ICMPV6) + \ + (1 - is_v6)*(inner_ip_hdr[10] == IPPROTO_ICMPV4); \ + \ + next0 = is_icmp*NEXT_MAPME_UDP##ipv + \ + (1-is_icmp)*NEXT_INTEREST_UDP##ipv; \ + \ + HICN_IFACE_UDP_ADD_LOCK_IP##ipv \ + (&(hicnb0->face_dpo_id), \ + &(ip_hdr->dst_address), \ + &(ip_hdr->src_address), \ + udp_hdr->dst_port, \ + udp_hdr->src_port, \ + GET_FACE_UDP##ipv \ + (), \ + &hicnb0->is_appface); \ + \ + vlib_buffer_advance(b0, sizeof(IP_HEADER_##ipv) + \ + sizeof(udp_header_t)); \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b0->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_INPUT_PKT_UDP##ipv *t = \ + vlib_add_trace (vm, node, b0, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_INTEREST; \ + t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; \ + t->next_index = next0; \ + } \ + \ + \ + /* 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); \ + }while(0) + + +#define iface_input_x2(ipv) \ + do { \ + vlib_buffer_t *b0, *b1; \ + u32 bi0, bi1; \ + u32 next0, next1 = ERROR_INPUT_UDP##ipv; \ + IP_HEADER_##ipv * ip_hdr0 = NULL, *ip_hdr1 = NULL; \ + u8 * inner_ip_hdr0 = NULL, *inner_ip_hdr1 = NULL; \ + udp_header_t * udp_hdr0 = NULL, *udp_hdr1 = NULL; \ + hicn_buffer_t * hicnb0, *hicnb1; \ + \ + /* Prefetch for next iteration. */ \ + { \ + vlib_buffer_t *b2, *b3; \ + b2 = vlib_get_buffer (vm, from[2]); \ + b3 = vlib_get_buffer (vm, from[3]); \ + CLIB_PREFETCH (b2, CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b3, CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b2->data, CLIB_CACHE_LINE_BYTES , LOAD); \ + CLIB_PREFETCH (b3->data, CLIB_CACHE_LINE_BYTES , LOAD); \ + } \ + \ + /* Dequeue a packet buffer */ \ + bi0 = from[0]; \ + bi1 = from[1]; \ + from += 2; \ + n_left_from -= 2; \ + to_next[0] = bi0; \ + to_next[1] = bi1; \ + to_next += 2; \ + n_left_to_next -= 2; \ + \ + b0 = vlib_get_buffer (vm, bi0); \ + b1 = vlib_get_buffer (vm, bi1); \ + ip_hdr0 = (IP_HEADER_##ipv *) vlib_buffer_get_current(b0); \ + ip_hdr1 = (IP_HEADER_##ipv *) vlib_buffer_get_current(b1); \ + udp_hdr0 = (udp_header_t *) (ip_hdr0 + 1); \ + udp_hdr1 = (udp_header_t *) (ip_hdr1 + 1); \ + hicnb0 = hicn_get_buffer(b0); \ + hicnb1 = hicn_get_buffer(b1); \ + \ + stats.pkts_interest_count += 2; \ + \ + inner_ip_hdr0 = (u8 *)(udp_hdr0 + 1); \ + inner_ip_hdr1 = (u8 *)(udp_hdr1 + 1); \ + u8 is_v6_0 = ((inner_ip_hdr0[0] & 2) >> 1); \ + u8 is_v6_1 = ((inner_ip_hdr1[0] & 2) >> 1); \ + u8 is_icmp0 = is_v6_0*(inner_ip_hdr0[7] == IPPROTO_ICMPV6) + \ + (1 - is_v6_0)*(inner_ip_hdr0[10] == IPPROTO_ICMPV4); \ + u8 is_icmp1 = is_v6_1*(inner_ip_hdr1[7] == IPPROTO_ICMPV6) + \ + (1 - is_v6_1)*(inner_ip_hdr1[10] == IPPROTO_ICMPV4); \ + \ + next0 = is_icmp0*NEXT_MAPME_UDP##ipv + \ + (1-is_icmp0)*NEXT_INTEREST_UDP##ipv; \ + next1 = is_icmp1*NEXT_MAPME_UDP##ipv + \ + (1-is_icmp1)*NEXT_INTEREST_UDP##ipv; \ + \ + HICN_IFACE_UDP_ADD_LOCK_IP##ipv \ + (&(hicnb0->face_dpo_id), \ + &(ip_hdr0->dst_address), \ + &(ip_hdr0->src_address), \ + udp_hdr0->dst_port, \ + udp_hdr0->src_port, \ + GET_FACE_UDP##ipv \ + (), \ + &hicnb0->is_appface); \ + \ + \ + HICN_IFACE_UDP_ADD_LOCK_IP##ipv \ + (&(hicnb1->face_dpo_id), \ + &(ip_hdr1->dst_address), \ + &(ip_hdr1->src_address), \ + udp_hdr1->dst_port, \ + udp_hdr1->src_port, \ + GET_FACE_UDP##ipv \ + (), \ + &hicnb1->is_appface); \ + \ + vlib_buffer_advance(b0, sizeof(IP_HEADER_##ipv) + \ + sizeof(udp_header_t)); \ + \ + vlib_buffer_advance(b1, sizeof(IP_HEADER_##ipv) + \ + sizeof(udp_header_t)); \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b0->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_INPUT_PKT_UDP##ipv *t = \ + vlib_add_trace (vm, node, b0, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_INTEREST; \ + t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; \ + t->next_index = next0; \ + } \ + \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b1->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_INPUT_PKT_UDP##ipv *t = \ + vlib_add_trace (vm, node, b1, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_INTEREST; \ + t->sw_if_index = vnet_buffer (b1)->sw_if_index[VLIB_RX]; \ + t->next_index = next1; \ + } \ + \ + \ + /* Verify speculative enqueue, maybe switch current next frame */ \ + vlib_validate_buffer_enqueue_x2 (vm, node, next_index, \ + to_next, n_left_to_next, \ + bi0, bi1, next0, next1); \ + }while(0) + + +static uword +hicn_iface_udp4_input_node_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + u32 n_left_from, *from, *to_next, next_index; + vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; + + 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); + + /* Dual loop, X2 */ + while (n_left_from >= 4 && n_left_to_next >= 2) + { + iface_input_x2 (4); + } + + /* Dual loop, X1 */ + while (n_left_from > 0 && n_left_to_next > 0) + { + iface_input_x1 (4); + } + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + vlib_node_increment_counter (vm, node->node_index, + HICNFWD_ERROR_INTERESTS, + stats.pkts_interest_count); + + return (frame->n_vectors); +} + +/* packet trace format function */ +static u8 * +hicn_iface_udp4_input_format_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 *); + hicn_iface_udp4_input_trace_t *t = + va_arg (*args, hicn_iface_udp4_input_trace_t *); + + s = format (s, "IFACE_UDP4_INPUT: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + +/* + * Node registration for the interest forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (hicn_iface_udp4_input_node) = + +{ + .function = hicn_iface_udp4_input_node_fn, + .name = "hicn-iface-udp4-input", + .vector_size = sizeof (u32), + .format_trace = hicn_iface_udp4_input_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN (hicn_iface_udp4_input_error_strings), + .error_strings = hicn_iface_udp4_input_error_strings, + .n_next_nodes = HICN_IFACE_UDP4_INPUT_N_NEXT, + .next_nodes = + { + [HICN_IFACE_UDP4_INPUT_NEXT_INTEREST] = "hicn-interest-pcslookup", + [HICN_IFACE_UDP4_INPUT_NEXT_MAPME] = "hicn-mapme-ctrl", + [HICN_IFACE_UDP4_INPUT_NEXT_ERROR_DROP] = "error-drop", + }, +}; +/* *INDENT-ON* */ + + +static uword +hicn_iface_udp6_input_node_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + u32 n_left_from, *from, *to_next, next_index; + vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; + + + 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); + + /* Dual loop, X2 */ + while (n_left_from >= 4 && n_left_to_next >= 2) + { + iface_input_x2 (6); + } + + /* Dual loop, X1 */ + while (n_left_from > 0 && n_left_to_next > 0) + { + iface_input_x1 (6); + } + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + vlib_node_increment_counter (vm, node->node_index, + HICNFWD_ERROR_INTERESTS, + stats.pkts_interest_count); + + return (frame->n_vectors); +} + +/* packet trace format function */ +static u8 * +hicn_iface_udp6_input_format_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 *); + hicn_iface_udp6_input_trace_t *t = + va_arg (*args, hicn_iface_udp6_input_trace_t *); + + s = format (s, "IFACE_UDP6_INPUT: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + +/* + * Node registration for the interest forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (hicn_iface_udp6_input_node) = +{ + .function = hicn_iface_udp6_input_node_fn, + .name = "hicn-iface-udp6-input", + .vector_size = sizeof (u32), + .format_trace = hicn_iface_udp6_input_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN (hicn_iface_udp6_input_error_strings), + .error_strings = hicn_iface_udp6_input_error_strings, + .n_next_nodes = HICN_IFACE_UDP6_INPUT_N_NEXT, + .next_nodes = + { + [HICN_IFACE_UDP6_INPUT_NEXT_INTEREST] = "hicn-interest-pcslookup", + [HICN_IFACE_UDP6_INPUT_NEXT_MAPME] = "hicn-mapme-ctrl", + [HICN_IFACE_UDP6_INPUT_NEXT_ERROR_DROP] = "error-drop", + }, +}; +/* *INDENT-ON* */ + +/******* Iface Output *******/ + +always_inline void +hicn_iface_udp4_encap (vlib_main_t * vm, + vlib_buffer_t * b0, hicn_face_t * face) +{ + u16 new_l0 = 0; + ip4_header_t *ip0; + udp_header_t *udp0; + hicn_face_udp_t *face_udp = (hicn_face_udp_t *) face->data; + + /* Adjust vlib buffers */ + /* Set the right length on the header buffer */ + /* Move the next buffer current data pointer back to the ip+tcp header (hicn header) */ + int offset = sizeof (ip4_header_t) + sizeof (udp_header_t); + b0->current_data -= offset; + b0->current_length += offset; + + /* ip */ + ip0 = vlib_buffer_get_current (b0); + clib_memcpy (ip0, &(face_udp->hdrs.ip4.ip), sizeof (ip4_header_t) + + sizeof (udp_header_t)); + + /* Fix UDP length */ + udp0 = (udp_header_t *) (ip0 + 1); + + new_l0 = + clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0) - + sizeof (*ip0)); + udp0->length = new_l0; + + ip0->length = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0)); + ip0->checksum = ip4_header_checksum (ip0); +} + +always_inline void +hicn_iface_udp6_encap (vlib_main_t * vm, + vlib_buffer_t * b0, hicn_face_t * face) +{ + int bogus0; + u16 new_l0; + ip6_header_t *ip0; + udp_header_t *udp0; + hicn_face_udp_t *face_udp = (hicn_face_udp_t *) face->data; + + /* Adjust vlib buffer */ + int offset = sizeof (ip6_header_t) + sizeof (udp_header_t); + b0->current_data -= offset; + b0->current_length += offset; + + /* ip */ + ip0 = vlib_buffer_get_current (b0); + clib_memcpy (ip0, &(face_udp->hdrs.ip6.ip), sizeof (ip6_header_t) + + sizeof (udp_header_t)); + + new_l0 = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0) + - sizeof (*ip0)); + + ip0->payload_length = new_l0; + + /* Fix UDP length */ + udp0 = (udp_header_t *) (ip0 + 1); + udp0->length = new_l0; + + udp0->checksum = ip6_tcp_udp_icmp_compute_checksum (vm, b0, ip0, &bogus0); + + ASSERT (bogus0 == 0); + + if (udp0->checksum == 0) + udp0->checksum = 0xffff; +} + +static char *hicn_iface_udp4_output_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + +static char *hicn_iface_udp6_output_error_strings[] = { +#define _(sym, string) string, + foreach_hicnfwd_error +#undef _ +}; + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; +} hicn_iface_udp4_output_trace_t; + +typedef enum +{ + HICN_IFACE_UDP4_OUTPUT_NEXT_LOOKUP, + HICN_IFACE_UDP4_OUTPUT_NEXT_ERROR_DROP, + HICN_IFACE_UDP4_OUTPUT_N_NEXT, +} hicn_iface_udp4_output_next_t; + +/* Trace context struct */ +typedef struct +{ + u32 next_index; + u32 sw_if_index; + u8 pkt_type; +} hicn_iface_udp6_output_trace_t; + +typedef enum +{ + HICN_IFACE_UDP6_OUTPUT_NEXT_LOOKUP, + HICN_IFACE_UDP6_OUTPUT_NEXT_ERROR_DROP, + HICN_IFACE_UDP6_OUTPUT_N_NEXT, +} hicn_iface_udp6_output_next_t; + +#define ERROR_OUTPUT_UDP4 HICN_IFACE_UDP4_OUTPUT_NEXT_ERROR_DROP +#define ERROR_OUTPUT_UDP6 HICN_IFACE_UDP6_OUTPUT_NEXT_ERROR_DROP + +#define IP_HEADER_4 ip4_header_t +#define IP_HEADER_6 ip6_header_t + +#define NEXT_LOOKUP_UDP4 HICN_IFACE_UDP4_OUTPUT_NEXT_LOOKUP +#define NEXT_LOOKUP_UDP6 HICN_IFACE_UDP6_OUTPUT_NEXT_LOOKUP + +#define HICN_IFACE_UDP_ADD_LOCK_IP4 hicn_dpo_udp4_add_and_lock +#define HICN_IFACE_UDP_ADD_LOCK_IP6 hicn_dpo_udp6_add_and_lock + +#define HICN_FACE_UDP_ENCAP_IP4 hicn_iface_udp4_encap +#define HICN_FACE_UDP_ENCAP_IP6 hicn_iface_udp6_encap + +#define TRACE_OUTPUT_PKT_UDP4 hicn_iface_udp4_output_trace_t +#define TRACE_OUTPUT_PKT_UDP6 hicn_iface_udp6_output_trace_t + +#define iface_output_x1(ipv) \ + do { \ + vlib_buffer_t *b0; \ + u32 bi0; \ + u32 next0 = ERROR_OUTPUT_UDP##ipv; \ + hicn_face_t * face; \ + \ + /* Prefetch for next iteration. */ \ + if (n_left_from > 1) \ + { \ + vlib_buffer_t *b1; \ + b1 = vlib_get_buffer (vm, from[1]); \ + CLIB_PREFETCH (b1, CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b1->data, CLIB_CACHE_LINE_BYTES , LOAD); \ + } \ + /* Dequeue a packet buffer */ \ + bi0 = from[0]; \ + from += 1; \ + n_left_from -= 1; \ + to_next[0] = bi0; \ + to_next += 1; \ + n_left_to_next -= 1; \ + \ + b0 = vlib_get_buffer (vm, bi0); \ + \ + face = \ + hicn_dpoi_get_from_idx(vnet_buffer (b0)->ip.adj_index[VLIB_TX]); \ + \ + if (PREDICT_TRUE(face != NULL)) \ + { \ + HICN_FACE_UDP_ENCAP_IP##ipv \ + (vm, b0, face); \ + next0 = NEXT_LOOKUP_UDP##ipv; \ + stats.pkts_data_count += 1; \ + } \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b0->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_OUTPUT_PKT_UDP##ipv *t = \ + vlib_add_trace (vm, node, b0, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_INTEREST; \ + t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; \ + t->next_index = next0; \ + } \ + \ + \ + /* 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); \ + } while(0) + +#define iface_output_x2(ipv) \ + do { \ + vlib_buffer_t *b0, *b1; \ + u32 bi0, bi1; \ + u32 next0 = ERROR_OUTPUT_UDP##ipv, next1 = ERROR_OUTPUT_UDP##ipv; \ + hicn_face_t *face0, *face1; \ + \ + /* Prefetch for next iteration. */ \ + { \ + vlib_buffer_t *b2, *b3; \ + b2 = vlib_get_buffer (vm, from[2]); \ + b3 = vlib_get_buffer (vm, from[3]); \ + CLIB_PREFETCH (b2, CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b3, CLIB_CACHE_LINE_BYTES, STORE); \ + CLIB_PREFETCH (b2->data, CLIB_CACHE_LINE_BYTES , LOAD); \ + CLIB_PREFETCH (b3->data, CLIB_CACHE_LINE_BYTES , LOAD); \ + } \ + \ + /* Dequeue packets buffers */ \ + bi0 = from[0]; \ + bi1 = from[1]; \ + from += 2; \ + n_left_from -= 2; \ + to_next[0] = bi0; \ + to_next[1] = bi1; \ + to_next += 2; \ + n_left_to_next -= 2; \ + \ + b0 = vlib_get_buffer (vm, bi0); \ + b1 = vlib_get_buffer (vm, bi1); \ + \ + face0 = \ + hicn_dpoi_get_from_idx(vnet_buffer (b0)->ip.adj_index[VLIB_TX]); \ + face1 = \ + hicn_dpoi_get_from_idx(vnet_buffer (b0)->ip.adj_index[VLIB_TX]); \ + \ + if (PREDICT_TRUE(face0 != NULL)) \ + { \ + HICN_FACE_UDP_ENCAP_IP##ipv \ + (vm, b0, face0); \ + next0 = NEXT_LOOKUP_UDP##ipv; \ + stats.pkts_data_count += 1; \ + } \ + \ + if (PREDICT_TRUE(face1 != NULL)) \ + { \ + HICN_FACE_UDP_ENCAP_IP##ipv \ + (vm, b1, face1); \ + next0 = NEXT_LOOKUP_UDP##ipv; \ + stats.pkts_data_count += 1; \ + } \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b0->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_OUTPUT_PKT_UDP##ipv *t = \ + vlib_add_trace (vm, node, b0, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_INTEREST; \ + t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; \ + t->next_index = next0; \ + } \ + \ + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && \ + (b1->flags & VLIB_BUFFER_IS_TRACED))) \ + { \ + TRACE_OUTPUT_PKT_UDP##ipv *t = \ + vlib_add_trace (vm, node, b1, sizeof (*t)); \ + t->pkt_type = HICN_PKT_TYPE_INTEREST; \ + t->sw_if_index = vnet_buffer (b1)->sw_if_index[VLIB_RX]; \ + t->next_index = next1; \ + } \ + \ + \ + /* Verify speculative enqueue, maybe switch current next frame */ \ + vlib_validate_buffer_enqueue_x2 (vm, node, next_index, \ + to_next, n_left_to_next, \ + bi0, bi1, next0, next1); \ + } while(0) + + +static uword +hicn_iface_udp4_output_node_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + u32 n_left_from, *from, *to_next, next_index; + vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; + + 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); + + while (n_left_from >= 4 && n_left_to_next >= 2) + { + iface_output_x2 (4); + } + + while (n_left_from > 0 && n_left_to_next > 0) + { + iface_output_x1 (4); + } + + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + vlib_node_increment_counter (vm, node->node_index, + HICNFWD_ERROR_DATAS, stats.pkts_data_count); + + return (frame->n_vectors); +} + +/* packet trace format function */ +static u8 * +hicn_iface_udp4_output_format_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 *); + hicn_iface_udp4_output_trace_t *t = + va_arg (*args, hicn_iface_udp4_output_trace_t *); + + s = format (s, "IFACE_UDP4_OUTPUT: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + + +/* + * Node registration for the interest forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (hicn_iface_udp4_output_node) = +{ + .function = hicn_iface_udp4_output_node_fn, + .name = "hicn-iface-udp4-output", + .vector_size = sizeof (u32), + .format_trace = hicn_iface_udp4_output_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN (hicn_iface_udp4_output_error_strings), + .error_strings = hicn_iface_udp4_output_error_strings, + .n_next_nodes = HICN_IFACE_UDP4_OUTPUT_N_NEXT, + /* edit / add dispositions here */ + .next_nodes = + { + [HICN_IFACE_UDP4_OUTPUT_NEXT_LOOKUP] = "ip4-lookup", + [HICN_IFACE_UDP4_OUTPUT_NEXT_ERROR_DROP] = "error-drop", + }, +}; +/* *INDENT-ON* */ + + +static uword +hicn_iface_udp6_output_node_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + u32 n_left_from, *from, *to_next, next_index; + vl_api_hicn_api_node_stats_get_reply_t stats = { 0 }; + + 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); + + while (n_left_from >= 4 && n_left_to_next >= 2) + { + iface_output_x2 (6); + } + + while (n_left_from > 0 && n_left_to_next > 0) + { + iface_output_x1 (6); + } + + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + vlib_node_increment_counter (vm, node->node_index, + HICNFWD_ERROR_DATAS, stats.pkts_data_count); + + return (frame->n_vectors); + +} + +/* packet trace format function */ +static u8 * +hicn_iface_udp6_output_format_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 *); + hicn_iface_udp6_output_trace_t *t = + va_arg (*args, hicn_iface_udp6_output_trace_t *); + + s = format (s, "IFACE_UDP6_OUTPUT: pkt: %d, sw_if_index %d, next index %d", + (int) t->pkt_type, t->sw_if_index, t->next_index); + return (s); +} + +/* + * Node registration for the interest forwarder node + */ +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (hicn_iface_udp6_output_node) = +{ + .function = hicn_iface_udp6_output_node_fn, + .name = "hicn-iface-udp6-output", + .vector_size = sizeof (u32), + .format_trace = hicn_iface_udp6_output_format_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_errors = ARRAY_LEN (hicn_iface_udp6_output_error_strings), + .error_strings = hicn_iface_udp6_output_error_strings, + .n_next_nodes = HICN_IFACE_UDP6_OUTPUT_N_NEXT, + /* edit / add dispositions here */ + .next_nodes = + { + [HICN_IFACE_UDP6_OUTPUT_NEXT_LOOKUP] = "ip6-lookup", + [HICN_IFACE_UDP6_OUTPUT_NEXT_ERROR_DROP] = "error-drop", + }, +}; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/hicn-plugin/src/faces/udp/iface_udp_node.h b/hicn-plugin/src/faces/udp/iface_udp_node.h new file mode 100755 index 000000000..957d19217 --- /dev/null +++ b/hicn-plugin/src/faces/udp/iface_udp_node.h @@ -0,0 +1,36 @@ +/* + * Copyright (c) 2017-2019 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 __HICN_IFACE_UDP_H__ +#define __HICN_IFACE_UDP_H__ + +#include <vlib/vlib.h> + +extern vlib_node_registration_t hicn_iface_udp4_input_node; +extern vlib_node_registration_t hicn_iface_udp6_input_node; +extern vlib_node_registration_t hicn_iface_udp4_output_node; +extern vlib_node_registration_t hicn_iface_udp6_output_node; + +void hicn_iface_udp_init (vlib_main_t * vm); + +#endif // __HICN_FACE_UDP_H__ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |