Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1 | /* |
AkshayaNadahalli | ed4a2fd | 2016-08-09 13:38:04 +0530 | [diff] [blame] | 2 | * Copyright (c) 2016 Cisco and/or its affiliates. |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 3 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | * you may not use this file except in compliance with the License. |
| 5 | * You may obtain a copy of the License at: |
| 6 | * |
| 7 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | * |
| 9 | * Unless required by applicable law or agreed to in writing, software |
| 10 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | * See the License for the specific language governing permissions and |
| 13 | * limitations under the License. |
| 14 | */ |
| 15 | /* |
| 16 | * ip/ip6.h: ip6 main include file |
| 17 | * |
| 18 | * Copyright (c) 2008 Eliot Dresselhaus |
| 19 | * |
| 20 | * Permission is hereby granted, free of charge, to any person obtaining |
| 21 | * a copy of this software and associated documentation files (the |
| 22 | * "Software"), to deal in the Software without restriction, including |
| 23 | * without limitation the rights to use, copy, modify, merge, publish, |
| 24 | * distribute, sublicense, and/or sell copies of the Software, and to |
| 25 | * permit persons to whom the Software is furnished to do so, subject to |
| 26 | * the following conditions: |
| 27 | * |
| 28 | * The above copyright notice and this permission notice shall be |
| 29 | * included in all copies or substantial portions of the Software. |
| 30 | * |
| 31 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 32 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 33 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| 34 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE |
| 35 | * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION |
| 36 | * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
| 37 | * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 38 | */ |
| 39 | |
| 40 | #ifndef included_ip_ip6_h |
| 41 | #define included_ip_ip6_h |
| 42 | |
| 43 | #include <vlib/mc.h> |
John Lo | 1edfba9 | 2016-08-27 01:11:57 -0400 | [diff] [blame] | 44 | #include <vlib/buffer.h> |
| 45 | #include <vnet/ethernet/packet.h> |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 46 | #include <vnet/ip/ip6_packet.h> |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 47 | #include <vnet/ip/ip6_hop_by_hop_packet.h> |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 48 | #include <vnet/ip/lookup.h> |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 49 | #include <stdbool.h> |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 50 | #include <vppinfra/bihash_24_8.h> |
| 51 | #include <vppinfra/bihash_template.h> |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 52 | #include <vnet/util/radix.h> |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 53 | |
| 54 | /* |
| 55 | * Default size of the ip6 fib hash table |
| 56 | */ |
| 57 | #define IP6_FIB_DEFAULT_HASH_NUM_BUCKETS (64 * 1024) |
| 58 | #define IP6_FIB_DEFAULT_HASH_MEMORY_SIZE (32<<20) |
| 59 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 60 | typedef struct |
| 61 | { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 62 | ip6_address_t addr; |
| 63 | u32 dst_address_length; |
| 64 | u32 vrf_index; |
| 65 | } ip6_fib_key_t; |
| 66 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 67 | typedef struct |
| 68 | { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 69 | /* Table ID (hash key) for this FIB. */ |
| 70 | u32 table_id; |
| 71 | |
| 72 | /* Index into FIB vector. */ |
| 73 | u32 index; |
| 74 | |
| 75 | /* flow hash configuration */ |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 76 | flow_hash_config_t flow_hash_config; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 77 | } ip6_fib_t; |
| 78 | |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 79 | typedef struct ip6_mfib_t |
| 80 | { |
| 81 | /* Table ID (hash key) for this FIB. */ |
| 82 | u32 table_id; |
| 83 | |
| 84 | /* Index into FIB vector. */ |
| 85 | u32 index; |
| 86 | |
| 87 | /* |
| 88 | * Pointer to the top of a radix tree. |
| 89 | * This cannot be realloc'd, hence it cannot be inlined with this table |
| 90 | */ |
| 91 | struct radix_node_head *rhead; |
| 92 | } ip6_mfib_t; |
| 93 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 94 | struct ip6_main_t; |
| 95 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 96 | typedef void (ip6_add_del_interface_address_function_t) |
| 97 | (struct ip6_main_t * im, |
| 98 | uword opaque, |
| 99 | u32 sw_if_index, |
| 100 | ip6_address_t * address, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 101 | u32 address_length, u32 if_address_index, u32 is_del); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 102 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 103 | typedef struct |
| 104 | { |
| 105 | ip6_add_del_interface_address_function_t *function; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 106 | uword function_opaque; |
| 107 | } ip6_add_del_interface_address_callback_t; |
| 108 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 109 | /** |
| 110 | * Enumeration of the FIB table instance types |
| 111 | */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 112 | typedef enum ip6_fib_table_instance_type_t_ |
| 113 | { |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 114 | /** |
| 115 | * This table stores the routes that are used to forward traffic. |
| 116 | * The key is the prefix, the result the adjacnecy to forward on. |
| 117 | */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 118 | IP6_FIB_TABLE_FWDING, |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 119 | /** |
| 120 | * The table that stores ALL routes learned by the DP. |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 121 | * Some of these routes may not be ready to install in forwarding |
| 122 | * at a given time. |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 123 | * The key in this table is the prefix, the result is the fib_entry_t |
| 124 | */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 125 | IP6_FIB_TABLE_NON_FWDING, |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 126 | } ip6_fib_table_instance_type_t; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 127 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 128 | #define IP6_FIB_NUM_TABLES (IP6_FIB_TABLE_NON_FWDING+1) |
| 129 | |
| 130 | /** |
| 131 | * A represenation of a single IP6 table |
| 132 | */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 133 | typedef struct ip6_fib_table_instance_t_ |
| 134 | { |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 135 | /* The hash table */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 136 | BVT (clib_bihash) ip6_hash; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 137 | |
| 138 | /* bitmap / refcounts / vector of mask widths to search */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 139 | uword *non_empty_dst_address_length_bitmap; |
| 140 | u8 *prefix_lengths_in_search_order; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 141 | i32 dst_address_length_refcounts[129]; |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 142 | } ip6_fib_table_instance_t; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 143 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 144 | typedef struct ip6_main_t |
| 145 | { |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 146 | /** |
| 147 | * The two FIB tables; fwding and non-fwding |
| 148 | */ |
| 149 | ip6_fib_table_instance_t ip6_table[IP6_FIB_NUM_TABLES]; |
| 150 | |
| 151 | ip_lookup_main_t lookup_main; |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 152 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 153 | /* Pool of FIBs. */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 154 | struct fib_table_t_ *fibs; |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 155 | |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 156 | /** Vector of MFIBs. */ |
| 157 | struct mfib_table_t_ *mfibs; |
| 158 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 159 | /* Network byte orders subnet mask for each prefix length */ |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 160 | ip6_address_t fib_masks[129]; |
| 161 | |
| 162 | /* Table index indexed by software interface. */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 163 | u32 *fib_index_by_sw_if_index; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 164 | |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 165 | /** Table index indexed by software interface. */ |
| 166 | u32 *mfib_index_by_sw_if_index; |
| 167 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 168 | /* IP6 enabled count by software interface */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 169 | u8 *ip_enabled_by_sw_if_index; |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 170 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 171 | /* Hash table mapping table id to fib index. |
| 172 | ID space is not necessarily dense; index space is dense. */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 173 | uword *fib_index_by_table_id; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 174 | |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 175 | /** Hash table mapping table id to multicast fib index. |
| 176 | ID space is not necessarily dense; index space is dense. */ |
| 177 | uword *mfib_index_by_table_id; |
| 178 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 179 | /* Hash table mapping interface rewrite adjacency index by sw if index. */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 180 | uword *interface_route_adj_index_by_sw_if_index; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 181 | |
| 182 | /* Functions to call when interface address changes. */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 183 | ip6_add_del_interface_address_callback_t |
| 184 | * add_del_interface_address_callbacks; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 185 | |
| 186 | /* Template used to generate IP6 neighbor solicitation packets. */ |
| 187 | vlib_packet_template_t discover_neighbor_packet_template; |
| 188 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 189 | /* ip6 lookup table config parameters */ |
| 190 | u32 lookup_table_nbuckets; |
| 191 | uword lookup_table_size; |
| 192 | |
| 193 | /* Seed for Jenkins hash used to compute ip6 flow hash. */ |
| 194 | u32 flow_hash_seed; |
| 195 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 196 | struct |
| 197 | { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 198 | /* TTL to use for host generated packets. */ |
| 199 | u8 ttl; |
| 200 | |
| 201 | u8 pad[3]; |
| 202 | } host_config; |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 203 | |
| 204 | /* HBH processing enabled? */ |
| 205 | u8 hbh_enabled; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 206 | } ip6_main_t; |
| 207 | |
| 208 | /* Global ip6 main structure. */ |
| 209 | extern ip6_main_t ip6_main; |
| 210 | |
| 211 | /* Global ip6 input node. Errors get attached to ip6 input node. */ |
| 212 | extern vlib_node_registration_t ip6_input_node; |
| 213 | extern vlib_node_registration_t ip6_rewrite_node; |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 214 | extern vlib_node_registration_t ip6_rewrite_mcast_node; |
Pierre Pfister | 0febaf1 | 2016-06-08 12:23:21 +0100 | [diff] [blame] | 215 | extern vlib_node_registration_t ip6_rewrite_local_node; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 216 | extern vlib_node_registration_t ip6_discover_neighbor_node; |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 217 | extern vlib_node_registration_t ip6_glean_node; |
| 218 | extern vlib_node_registration_t ip6_midchain_node; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 219 | |
| 220 | extern vlib_node_registration_t ip6_icmp_neighbor_discovery_event_node; |
| 221 | |
| 222 | /* ipv6 neighbor discovery - timer/event types */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 223 | typedef enum |
| 224 | { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 225 | ICMP6_ND_EVENT_INIT, |
| 226 | } ip6_icmp_neighbor_discovery_event_type_t; |
| 227 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 228 | typedef union |
| 229 | { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 230 | u32 add_del_swindex; |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 231 | struct |
| 232 | { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 233 | u32 up_down_swindex; |
| 234 | u32 fib_index; |
| 235 | } up_down_event; |
| 236 | } ip6_icmp_neighbor_discovery_event_data_t; |
| 237 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 238 | always_inline uword |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 239 | ip6_destination_matches_route (const ip6_main_t * im, |
| 240 | const ip6_address_t * key, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 241 | const ip6_address_t * dest, uword dest_length) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 242 | { |
| 243 | int i; |
| 244 | for (i = 0; i < ARRAY_LEN (key->as_uword); i++) |
| 245 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 246 | if ((key->as_uword[i] ^ dest->as_uword[i]) & im-> |
| 247 | fib_masks[dest_length].as_uword[i]) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 248 | return 0; |
| 249 | } |
| 250 | return 1; |
| 251 | } |
| 252 | |
| 253 | always_inline uword |
| 254 | ip6_destination_matches_interface (ip6_main_t * im, |
| 255 | ip6_address_t * key, |
| 256 | ip_interface_address_t * ia) |
| 257 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 258 | ip6_address_t *a = ip_interface_address_get_address (&im->lookup_main, ia); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 259 | return ip6_destination_matches_route (im, key, a, ia->address_length); |
| 260 | } |
| 261 | |
| 262 | /* As above but allows for unaligned destinations (e.g. works right from IP header of packet). */ |
| 263 | always_inline uword |
| 264 | ip6_unaligned_destination_matches_route (ip6_main_t * im, |
| 265 | ip6_address_t * key, |
| 266 | ip6_address_t * dest, |
| 267 | uword dest_length) |
| 268 | { |
| 269 | int i; |
| 270 | for (i = 0; i < ARRAY_LEN (key->as_uword); i++) |
| 271 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 272 | if ((clib_mem_unaligned (&key->as_uword[i], uword) ^ dest->as_uword[i]) |
| 273 | & im->fib_masks[dest_length].as_uword[i]) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 274 | return 0; |
| 275 | } |
| 276 | return 1; |
| 277 | } |
| 278 | |
Pierre Pfister | d076f19 | 2016-06-22 12:58:30 +0100 | [diff] [blame] | 279 | always_inline int |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 280 | ip6_src_address_for_packet (ip_lookup_main_t * lm, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 281 | u32 sw_if_index, ip6_address_t * src) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 282 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 283 | u32 if_add_index = lm->if_address_pool_index_by_sw_if_index[sw_if_index]; |
| 284 | if (PREDICT_TRUE (if_add_index != ~0)) |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 285 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 286 | ip_interface_address_t *if_add = |
| 287 | pool_elt_at_index (lm->if_address_pool, if_add_index); |
| 288 | ip6_address_t *if_ip = ip_interface_address_get_address (lm, if_add); |
| 289 | *src = *if_ip; |
| 290 | return (0); |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 291 | } |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 292 | else |
| 293 | { |
| 294 | src->as_u64[0] = 0; |
| 295 | src->as_u64[1] = 0; |
| 296 | } |
| 297 | return (!0); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 298 | } |
| 299 | |
| 300 | /* Find interface address which matches destination. */ |
| 301 | always_inline ip6_address_t * |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 302 | ip6_interface_address_matching_destination (ip6_main_t * im, |
| 303 | ip6_address_t * dst, |
| 304 | u32 sw_if_index, |
| 305 | ip_interface_address_t ** |
| 306 | result_ia) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 307 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 308 | ip_lookup_main_t *lm = &im->lookup_main; |
| 309 | ip_interface_address_t *ia; |
| 310 | ip6_address_t *result = 0; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 311 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 312 | /* *INDENT-OFF* */ |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 313 | foreach_ip_interface_address (lm, ia, sw_if_index, |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 314 | 1 /* honor unnumbered */, |
| 315 | ({ |
| 316 | ip6_address_t * a = ip_interface_address_get_address (lm, ia); |
| 317 | if (ip6_destination_matches_route (im, dst, a, ia->address_length)) |
| 318 | { |
| 319 | result = a; |
| 320 | break; |
| 321 | } |
| 322 | })); |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 323 | /* *INDENT-ON* */ |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 324 | if (result_ia) |
| 325 | *result_ia = result ? ia : 0; |
| 326 | return result; |
| 327 | } |
| 328 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 329 | clib_error_t *ip6_add_del_interface_address (vlib_main_t * vm, |
| 330 | u32 sw_if_index, |
| 331 | ip6_address_t * address, |
| 332 | u32 address_length, u32 is_del); |
| 333 | void ip6_sw_interface_enable_disable (u32 sw_if_index, u32 is_enable); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 334 | |
| 335 | int ip6_address_compare (ip6_address_t * a1, ip6_address_t * a2); |
| 336 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 337 | clib_error_t *ip6_probe_neighbor (vlib_main_t * vm, ip6_address_t * dst, |
| 338 | u32 sw_if_index); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 339 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 340 | clib_error_t *ip6_set_neighbor_limit (u32 neighbor_limit); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 341 | |
| 342 | uword |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 343 | ip6_udp_register_listener (vlib_main_t * vm, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 344 | u16 dst_port, u32 next_node_index); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 345 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 346 | u16 ip6_tcp_udp_icmp_compute_checksum (vlib_main_t * vm, vlib_buffer_t * p0, |
| 347 | ip6_header_t * ip0, |
| 348 | int *bogus_lengthp); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 349 | |
| 350 | void ip6_register_protocol (u32 protocol, u32 node_index); |
| 351 | |
| 352 | serialize_function_t serialize_vnet_ip6_main, unserialize_vnet_ip6_main; |
| 353 | |
Neale Ranns | b80c536 | 2016-10-08 13:03:40 +0100 | [diff] [blame] | 354 | void ip6_ethernet_update_adjacency (vnet_main_t * vnm, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 355 | u32 sw_if_index, u32 ai); |
Neale Ranns | b80c536 | 2016-10-08 13:03:40 +0100 | [diff] [blame] | 356 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 357 | int |
| 358 | vnet_set_ip6_ethernet_neighbor (vlib_main_t * vm, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 359 | u32 sw_if_index, |
| 360 | ip6_address_t * a, |
| 361 | u8 * link_layer_address, |
| 362 | uword n_bytes_link_layer_address, |
| 363 | int is_static); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 364 | int |
| 365 | vnet_unset_ip6_ethernet_neighbor (vlib_main_t * vm, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 366 | u32 sw_if_index, |
| 367 | ip6_address_t * a, |
| 368 | u8 * link_layer_address, |
| 369 | uword n_bytes_link_layer_address); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 370 | |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 371 | void |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 372 | ip6_link_local_address_from_ethernet_mac_address (ip6_address_t * ip, |
| 373 | u8 * mac); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 374 | |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 375 | void |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 376 | ip6_ethernet_mac_address_from_link_local_address (u8 * mac, |
| 377 | ip6_address_t * ip); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 378 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 379 | int vnet_set_ip6_flow_hash (u32 table_id, |
| 380 | flow_hash_config_t flow_hash_config); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 381 | |
| 382 | int |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 383 | ip6_neighbor_ra_config (vlib_main_t * vm, u32 sw_if_index, |
| 384 | u8 suppress, u8 managed, u8 other, |
| 385 | u8 ll_option, u8 send_unicast, u8 cease, |
| 386 | u8 use_lifetime, u32 lifetime, |
| 387 | u32 initial_count, u32 initial_interval, |
| 388 | u32 max_interval, u32 min_interval, u8 is_no); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 389 | |
| 390 | int |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 391 | ip6_neighbor_ra_prefix (vlib_main_t * vm, u32 sw_if_index, |
| 392 | ip6_address_t * prefix_addr, u8 prefix_len, |
| 393 | u8 use_default, u32 val_lifetime, u32 pref_lifetime, |
| 394 | u8 no_advertise, u8 off_link, u8 no_autoconfig, |
| 395 | u8 no_onlink, u8 is_no); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 396 | |
| 397 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 398 | clib_error_t *enable_ip6_interface (vlib_main_t * vm, u32 sw_if_index); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 399 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 400 | clib_error_t *disable_ip6_interface (vlib_main_t * vm, u32 sw_if_index); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 401 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 402 | int ip6_interface_enabled (vlib_main_t * vm, u32 sw_if_index); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 403 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 404 | clib_error_t *set_ip6_link_local_address (vlib_main_t * vm, |
| 405 | u32 sw_if_index, |
Neale Ranns | 7515228 | 2017-01-09 01:00:45 -0800 | [diff] [blame] | 406 | ip6_address_t * address); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 407 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 408 | void vnet_register_ip6_neighbor_resolution_event (vnet_main_t * vnm, |
| 409 | void *address_arg, |
| 410 | uword node_index, |
| 411 | uword type_opaque, |
| 412 | uword data); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 413 | |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 414 | int vnet_add_del_ip6_nd_change_event (vnet_main_t * vnm, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 415 | void *data_callback, |
John Lo | 1edfba9 | 2016-08-27 01:11:57 -0400 | [diff] [blame] | 416 | u32 pid, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 417 | void *address_arg, |
John Lo | 1edfba9 | 2016-08-27 01:11:57 -0400 | [diff] [blame] | 418 | uword node_index, |
| 419 | uword type_opaque, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 420 | uword data, int is_add); |
John Lo | 1edfba9 | 2016-08-27 01:11:57 -0400 | [diff] [blame] | 421 | |
| 422 | int vnet_ip6_nd_term (vlib_main_t * vm, |
| 423 | vlib_node_runtime_t * node, |
| 424 | vlib_buffer_t * p0, |
| 425 | ethernet_header_t * eth, |
| 426 | ip6_header_t * ip, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 427 | u32 sw_if_index, u16 bd_index, u8 shg); |
John Lo | 1edfba9 | 2016-08-27 01:11:57 -0400 | [diff] [blame] | 428 | |
John Lo | 2b81eb8 | 2017-01-30 13:12:10 -0500 | [diff] [blame] | 429 | u8 *format_ip6_forward_next_trace (u8 * s, va_list * args); |
| 430 | |
| 431 | u32 ip6_tcp_udp_icmp_validate_checksum (vlib_main_t * vm, vlib_buffer_t * p0); |
| 432 | |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 433 | int vnet_set_ip6_classify_intfc (vlib_main_t * vm, u32 sw_if_index, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 434 | u32 table_index); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 435 | extern vlib_node_registration_t ip6_lookup_node; |
| 436 | |
| 437 | /* Compute flow hash. We'll use it to select which Sponge to use for this |
| 438 | flow. And other things. */ |
| 439 | always_inline u32 |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 440 | ip6_compute_flow_hash (const ip6_header_t * ip, |
| 441 | flow_hash_config_t flow_hash_config) |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 442 | { |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 443 | tcp_header_t *tcp = (void *) (ip + 1); |
| 444 | u64 a, b, c; |
| 445 | u64 t1, t2; |
| 446 | uword is_tcp_udp = (ip->protocol == IP_PROTOCOL_TCP |
| 447 | || ip->protocol == IP_PROTOCOL_UDP); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 448 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 449 | t1 = (ip->src_address.as_u64[0] ^ ip->src_address.as_u64[1]); |
| 450 | t1 = (flow_hash_config & IP_FLOW_HASH_SRC_ADDR) ? t1 : 0; |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 451 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 452 | t2 = (ip->dst_address.as_u64[0] ^ ip->dst_address.as_u64[1]); |
| 453 | t2 = (flow_hash_config & IP_FLOW_HASH_DST_ADDR) ? t2 : 0; |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 454 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 455 | a = (flow_hash_config & IP_FLOW_HASH_REVERSE_SRC_DST) ? t2 : t1; |
| 456 | b = (flow_hash_config & IP_FLOW_HASH_REVERSE_SRC_DST) ? t1 : t2; |
| 457 | b ^= (flow_hash_config & IP_FLOW_HASH_PROTO) ? ip->protocol : 0; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 458 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 459 | t1 = is_tcp_udp ? tcp->ports.src : 0; |
| 460 | t2 = is_tcp_udp ? tcp->ports.dst : 0; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 461 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 462 | t1 = (flow_hash_config & IP_FLOW_HASH_SRC_PORT) ? t1 : 0; |
| 463 | t2 = (flow_hash_config & IP_FLOW_HASH_DST_PORT) ? t2 : 0; |
Dave Barach | 75fc854 | 2016-10-11 16:16:02 -0400 | [diff] [blame] | 464 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 465 | c = (flow_hash_config & IP_FLOW_HASH_REVERSE_SRC_DST) ? |
| 466 | ((t1 << 16) | t2) : ((t2 << 16) | t1); |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 467 | |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 468 | hash_mix64 (a, b, c); |
| 469 | return (u32) c; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 470 | } |
| 471 | |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 472 | /* |
| 473 | * Hop-by-Hop handling |
| 474 | */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 475 | typedef struct |
| 476 | { |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 477 | /* Array of function pointers to HBH option handling routines */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 478 | int (*options[256]) (vlib_buffer_t * b, ip6_header_t * ip, |
| 479 | ip6_hop_by_hop_option_t * opt); |
| 480 | u8 *(*trace[256]) (u8 * s, ip6_hop_by_hop_option_t * opt); |
Shwetha | a91cbe6 | 2016-08-08 15:51:04 +0100 | [diff] [blame] | 481 | uword next_override; |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 482 | } ip6_hop_by_hop_main_t; |
| 483 | |
| 484 | extern ip6_hop_by_hop_main_t ip6_hop_by_hop_main; |
| 485 | |
| 486 | int ip6_hbh_register_option (u8 option, |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 487 | int options (vlib_buffer_t * b, |
| 488 | ip6_header_t * ip, |
| 489 | ip6_hop_by_hop_option_t * opt), |
| 490 | u8 * trace (u8 * s, |
| 491 | ip6_hop_by_hop_option_t * opt)); |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 492 | int ip6_hbh_unregister_option (u8 option); |
Shwetha | a91cbe6 | 2016-08-08 15:51:04 +0100 | [diff] [blame] | 493 | void ip6_hbh_set_next_override (uword next); |
Ole Troan | 944f548 | 2016-05-24 11:56:58 +0200 | [diff] [blame] | 494 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 495 | #endif /* included_ip_ip6_h */ |
Dave Barach | d7cb1b5 | 2016-12-09 09:52:16 -0500 | [diff] [blame] | 496 | |
| 497 | /* |
| 498 | * fd.io coding-style-patch-verification: ON |
| 499 | * |
| 500 | * Local Variables: |
| 501 | * eval: (c-set-style "gnu") |
| 502 | * End: |
| 503 | */ |