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Diffstat (limited to 'hicn-plugin/src/punt.h')
| -rw-r--r-- | hicn-plugin/src/punt.h | 344 |
1 files changed, 0 insertions, 344 deletions
diff --git a/hicn-plugin/src/punt.h b/hicn-plugin/src/punt.h deleted file mode 100644 index 0e821ccb7..000000000 --- a/hicn-plugin/src/punt.h +++ /dev/null @@ -1,344 +0,0 @@ -/* - * 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_PUNT_H__ -#define __HICN_PUNT_H__ - -#include <vppinfra/error.h> -#include <vnet/fib/fib_types.h> -#include "hicn.h" -#include <vnet/classify/vnet_classify.h> - -#define HICN_CLASSIFY_TABLE_MEMORY_SIZE (2*1024*1024) // 2MB allocated for the classification table -#define HICN_PUNTING_BUFFER_SIZE_32 (32) -#define HICN_PUNTING_BUFFER_SIZE_48 (48) -#define HICN_PUNTING_BUFFER_SIZE_64 (64) -#define HICN_PUNTING_BUFFER_SIZE_80 (80) -#define HICN_PUNTING_BUFFER_SIZE_128 (128) - -/* Limits */ - -#define HICN_PUNT_IP4 0 -#define HICN_PUNT_IP6 1 - -#define HICN_MAX_INTFC 256 - -/* We also consider mask = 0 to match everything */ -#define HICN_PUNT_IP4_MASK 33 -#define HICN_PUNT_IP6_MASK 129 - -#define HICN_PUNT_IP_TYPE 0 -#define HICN_PUNT_UDP4_TYPE 1 -#define HICN_PUNT_UDP6_TYPE 2 - -#define HICN_PUNT_INVALID_PORT 0 -/* - * u32 ip4_vnet_tbl_idx[HICN_MAX_INTFC][2][3][HICN_PUNT_IP4_MASK]; - * //[skip][src][mask],[skip][dst][mask] u32 - * ip6_vnet_tbl_idx[HICN_MAX_INTFC][2][3][HICN_PUNT_IP6_MASK]; - * //[skip][src][mask],[skip][dst][mask] - */ -#define PUNT_MASK(ip) (ip->addr_len_bits + 1) -#define TABLE_ELT_P(ip, i, j, k, l) (ip->tbl + (4 * 2 * PUNT_MASK(ip)) * i + (2 * PUNT_MASK(ip)) * j + k * PUNT_MASK(ip) + l) -#define TABLE_ELT(ip, i, j, k, l) (*(TABLE_ELT_P(ip, i, j, k, l))) - -#define NO_L2 0 -#define ETH_L2 sizeof(ethernet_header_t) - -#define IPPROTO_MASK 0xFF - -/* Index to access vnet table index */ -#define HICN_PUNT_SRC 0 -#define HICN_PUNT_DST 1 - -#define HICN_PUNT_OK 0 -#define HICN_PUNT_ERR 1 - -#define HICNP_PUNY_INVALID_TBL ~0 - -/* Number of bytes before the next header/protocol field in ip6/4 */ -#define BYTES_TO_PROTOCOL_IP4 9 -#define BYTES_TO_NEXT_HEADER_IP6 6 - -#define PUNT_BUFFER_SIZE 100 /* B */ -#define CLASSIFIER_VECTOR_SIZE 16 /* B */ - -#define OP_DEL 0 -#define OP_ADD 1 -#define OP_DISABLE 0 -#define OP_ENABLE 1 - -/* vnet_classify_add_del_table */ -#define HICN_CLASSIFY_NO_NEXT_TABLE 0xFFFFFFFF -#define HICN_CLASSIFY_MISS_NEXT_INDEX 16 -#define HICN_CLASSIFY_CURRENT_DATA_FLAG CLASSIFY_FLAG_USE_CURR_DATA -#define HICN_CLASSIFY_NO_CURRENT_DATA_FLAG 0 -#define HICN_CLASSIFY_CURRENT_DATA_OFFSET 0 -#define HICN_CLASSIFY_DON_T_DEL_CHAIN 0 - -/* vnet_classify_add_del_session */ -#define HICN_CLASSIFY_OPAQUE_INDEX 0xFFFFFFFF -#define HICN_CLASSIFY_ADVANCE 0 -#define HICN_CLASSIFY_ACTION 0 -#define HICN_CLASSIFY_METADATA 0 - -/* This should be equal to the number of rules we expect in each table */ -#define HICN_CLASSIFY_NBUCKETS 3 - - -/* HICN punt node index */ -typedef struct _hicn_node_info_s -{ - u32 hicn_face_ip4_input_index; - u32 hicn_face_ip6_input_index; - u32 hicn_iface_ip4_input_index; - u32 hicn_iface_ip6_input_index; - u32 hicn_face_ip4_output_index; - u32 hicn_face_ip6_output_index; - u32 hicn_iface_ip4_output_index; - u32 hicn_iface_ip6_output_index; - u32 hicn_face_udp4_input_index; - u32 hicn_face_udp6_input_index; - u32 hicn_iface_udp4_input_index; - u32 hicn_iface_udp6_input_index; - u32 hicn_face_udp4_output_index; - u32 hicn_face_udp6_output_index; - u32 hicn_iface_udp4_output_index; - u32 hicn_iface_udp6_output_index; - u32 ip4_inacl_node_index; - u32 ip6_inacl_node_index; - u32 ip4_lookup_node_index; - u32 ip6_lookup_node_index; -} hicn_node_info_t; - -/* - * HICN global PUNT info - */ -typedef struct _hicn_punt_glb_s -{ - hicn_node_info_t hicn_node_info; - - /* - * The following nodes are used to create the vlib node graph, and - * point classified packets to the right node. - */ - u32 next_hit_interest_ipv4; - //node - graph index to forward packets to our hicn nodes - u32 next_hit_data_ipv4; - u32 next_hit_interest_ipv6; - //node - graph index to forward packets to our hicn nodes - u32 next_hit_data_ipv6; - u32 next_hit_interest_udp4; - //node - graph index to forward packets to our hicn nodes - u32 next_hit_data_udp4; - u32 next_hit_interest_udp6; - //node - graph index to forward packets to our hicn nodes - u32 next_hit_data_udp6; - - /* - * One table is created : - per interface : so that we can have - * different punted prefixes per interface, and thus decrease the - * amount of matched rules per packet. An interface will be - * consistently receiving packets with or without the ethernet - * header, and thus the offsets should always be correct. - per skip - * (assuming it is for the base offset (ethernet or not), in which - * case the interface should be sufficient. - per prefix length to - * allow for sorting later. - per src / dst (?) - * - * Note that there is no test on the packet type (v4 or v6), as they - * follow distinct paths in the vpp graph and will thus be dispatched - * to distinct classifiers. This is also why we duplicate the state - * for both IPv4 and IPv6 in this implementation. - * - * Tables are chained per interface in the order they are added. Each - * table consists in a set of rules (named sessions). - * - * / interface --> table i [.next_table_index=j] --> table j [.nti=~0] - * -- drop \ | | +-- on match, - * send to node m +-- [...] to node n - * - * For debugging purposes, you can use the following commands: - * - * vppctl show inacl type ip4 vppctl show inacl type ip6 - * - * vppctl show classify tables [verbose] - * - * TODO: - allow tables to be removed - sort tables with decreasing - * prefix length to allow for LPM. - directly access the linked list - * through vpp APIs and remove global variables. They are not - * sufficient anyways for removal. - */ - - /** - * Given the current implementation, the following multidimensional array - * stores the table indexes uniquerly identified by the 4-tuple (interface, - * skip, src/dst, mask). - * - * For flexibility, some macros and functions will be defined in the .c to - * manipulate this array. - */ - u32 ip4_vnet_tbl_idx[HICN_MAX_INTFC][4][2][HICN_PUNT_IP4_MASK]; - //[skip][src][mask],[skip][dst][mask] - u32 ip6_vnet_tbl_idx[HICN_MAX_INTFC][4][2][HICN_PUNT_IP6_MASK]; - //[skip][src][mask],[skip][dst][mask] - u32 udp44_vnet_tbl_idx[HICN_MAX_INTFC][4][2][HICN_PUNT_IP4_MASK]; - //[skip][src][mask],[skip][dst][mask] - u32 udp46_vnet_tbl_idx[HICN_MAX_INTFC][4][2][HICN_PUNT_IP6_MASK]; - //[skip][src][mask],[skip][dst][mask] - u32 udp64_vnet_tbl_idx[HICN_MAX_INTFC][4][2][HICN_PUNT_IP4_MASK]; - //[skip][src][mask],[skip][dst][mask] - u32 udp66_vnet_tbl_idx[HICN_MAX_INTFC][4][2][HICN_PUNT_IP6_MASK]; - //[skip][src][mask],[skip][dst][mask] - - /* - * The first and last tables associated to each interface (both for - * v4 and v6) are stored. They are respectively used to : - start - * classification on the correct table depending on the input - * interface: the assumption is that different interfaces with punt - * different prefixes, which should decreate the number of potential - * rules to match for each incoming packet. see. - * vnet_set_input_acl_intfc() - maintain the chaining between tables - * so that upon addition, the newly created table can be chained to - * the previous last one. - */ - u32 head_ip4[HICN_MAX_INTFC]; - u32 tail_ip4[HICN_MAX_INTFC]; - u32 head_ip6[HICN_MAX_INTFC]; - u32 tail_ip6[HICN_MAX_INTFC]; - -} hicn_punt_glb_t; - -extern hicn_punt_glb_t hicn_punt_glb; - - - -/* XXX The two following structs might be opaque */ - -#define NA 0 - -typedef struct -{ - u32 offset; - u32 len; /* bytes */ - u32 punt_id; /* see explanation in hicn_punt.c */ -} field_t; - -/* Format: _(name, base, layer, field, punt_id) */ -#define foreach_field \ - _(ipv6_src, 0, _ipv6_header_t, saddr, HICN_PUNT_SRC) \ - _(ipv6_dst, 0, _ipv6_header_t, daddr, HICN_PUNT_DST) \ - _(ipv6_protocol, 0, _ipv6_header_t, nxt, NA) \ - _(ipv4_src, 0, _ipv4_header_t, saddr, HICN_PUNT_SRC) \ - _(ipv4_dst, 0, _ipv4_header_t, daddr, HICN_PUNT_DST) \ - _(ipv4_protocol, 0, _ipv4_header_t, protocol, NA) \ - \ - _(ipv4_version, 0, _ipv4_header_t, version_ihl, NA) \ - _(ipv6_version, 0, _ipv6_header_t, vfc, NA) \ - _(udp4_sport, IPV4_HDRLEN, _udp_header_t, src_port, NA) \ - _(udp4_dport, IPV4_HDRLEN, _udp_header_t, dst_port, NA) \ - _(udp6_sport, IPV6_HDRLEN, _udp_header_t, src_port, NA) \ - _(udp6_dport, IPV6_HDRLEN, _udp_header_t, dst_port, NA) \ - _(udp6_protocol, 0, _ipv6_header_t, nxt, NA) \ - _(udp4_protocol, 0, _ipv4_header_t, protocol, NA) \ - _(udp46_src, IPV4_HDRLEN + UDP_HDRLEN, _ipv6_header_t, saddr, HICN_PUNT_SRC) \ - _(udp46_dst, IPV4_HDRLEN + UDP_HDRLEN, _ipv6_header_t, daddr, HICN_PUNT_DST) \ - _(udp44_src, IPV4_HDRLEN + UDP_HDRLEN, _ipv4_header_t, saddr, HICN_PUNT_SRC) \ - _(udp44_dst, IPV4_HDRLEN + UDP_HDRLEN, _ipv4_header_t, daddr, HICN_PUNT_DST) \ - _(udp66_src, IPV6_HDRLEN + UDP_HDRLEN, _ipv6_header_t, saddr, HICN_PUNT_SRC) \ - _(udp66_dst, IPV6_HDRLEN + UDP_HDRLEN, _ipv6_header_t, daddr, HICN_PUNT_DST) \ - _(udp64_src, IPV6_HDRLEN + UDP_HDRLEN, _ipv6_header_t, saddr, HICN_PUNT_SRC) \ - _(udp64_dst, IPV6_HDRLEN + UDP_HDRLEN, _ipv6_header_t, daddr, HICN_PUNT_DST) \ - - -#define _(NAME, BASE, LAYER, FIELD, PUNT_ID) \ - extern field_t NAME; -foreach_field -#undef _ - typedef struct -{ - u32 *tbl; - u8 addr_len_bits; - field_t *protocol_field; - field_t *version_field; - field_t *udp_sport; - field_t *udp_dport; - u8 ip_version; -} ip_version_t; - -extern ip_version_t ipv4; -extern ip_version_t ipv6; - - -/* ------------------------- */ - -/** - * @brief Punt table APIs - * - * Those APIs are called when the first punting table is created for a given - * interface, so as to point to the start of the chain. - */ -void -hicn_punt_enable_disable_vnet_ip4_table_on_intf (vlib_main_t * vm, - u32 sw_if_index, - int is_enable); -void -hicn_punt_enable_disable_vnet_ip6_table_on_intf (vlib_main_t * vm, - u32 sw_if_index, - int is_enable); -u32 hicn_punt_interest_data_for_udp (vlib_main_t * vm, - fib_prefix_t * prefix, - u32 swif, u8 punt_type, u16 sport, - u16 dport, u8 with_l2); -u32 hicn_punt_interest_data_for_ip (vlib_main_t * vm, - fib_prefix_t * prefix, - u32 swif, u8 type, u8 with_l2); -int hicn_punt_remove_ip6_address (vlib_main_t * vm, fib_prefix_t * prefix, - int skip, u32 swif, int is_enable, - u8 with_l2); -int hicn_punt_remove_ip4_address (vlib_main_t * vm, fib_prefix_t * prefix, - int skip, u32 swif, int is_enable, - u8 with_l2); -void hicn_punt_init (vlib_main_t * vm); - -int -hicn_punt_add_del_vnettbl (ip_version_t * ip, field_t * field, u8 mask, u32 - next_tbl_index, u32 intfc, u8 base_offset, - u8 use_current_data, int is_add); - -#define hicn_punt_add_vnettbl(ip, field, mask, next_tbl_index, intfc, base_offset, use_current_data) \ - (hicn_punt_add_del_vnettbl(ip, field, mask, next_tbl_index, intfc, base_offset, use_current_data, OP_ADD)) - -#define hicn_punt_del_vnettbl(ip, field, mask, next_tbl_index, intfc, base_offset) \ - (hicn_punt_add_del_vnettbl(ip, field, mask, next_tbl_index, intfc, base_offset, HICN_CLASSIFY_NO_CURRENT_DATA_FLAG, OP_DEL)) - -int -hicn_punt_add_del_vnetssn (ip_version_t * ip, field_t * field, - fib_prefix_t * prefix, - u32 next_hit_index, u32 intfc, u8 base_offset, - int is_add); - -#define hicn_punt_add_vnetssn(ip, field, addr, index, intfc, offset) \ - (hicn_punt_add_del_vnetssn(ip, field, addr, index, intfc, offset, OP_ADD)) - -#define hicn_punt_del_vnetssn(ip, field, addr, index, intfc, offset) \ - (hicn_punt_add_del_vnetssn(ip, field, addr, index, intfc, offset, OP_DEL)) - -#endif /* // __HICN_PUNT_H__ */ - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: eval: (c-set-style "gnu") End: - */ |