Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2016 Cisco and/or its affiliates. |
| 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 | #include <vnet/adj/adj.h> |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 17 | #include <vnet/adj/adj_internal.h> |
| 18 | #include <vnet/adj/adj_glean.h> |
| 19 | #include <vnet/adj/adj_midchain.h> |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 20 | #include <vnet/adj/adj_mcast.h> |
Neale Ranns | 88fc83e | 2017-04-05 08:11:14 -0700 | [diff] [blame] | 21 | #include <vnet/adj/adj_delegate.h> |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 22 | #include <vnet/fib/fib_node_list.h> |
| 23 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 24 | /* Adjacency packet/byte counters indexed by adjacency index. */ |
| 25 | vlib_combined_counter_main_t adjacency_counters; |
| 26 | |
Neale Ranns | 6c3ebcc | 2016-10-02 21:20:15 +0100 | [diff] [blame] | 27 | /* |
| 28 | * the single adj pool |
| 29 | */ |
| 30 | ip_adjacency_t *adj_pool; |
| 31 | |
Neale Ranns | 9c6a613 | 2017-02-21 05:33:14 -0800 | [diff] [blame] | 32 | /** |
| 33 | * @brief Global Config for enabling per-adjacency counters. |
| 34 | * By default these are disabled. |
| 35 | */ |
| 36 | int adj_per_adj_counters; |
| 37 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 38 | always_inline void |
| 39 | adj_poison (ip_adjacency_t * adj) |
| 40 | { |
| 41 | if (CLIB_DEBUG > 0) |
| 42 | { |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 43 | memset (adj, 0xfe, sizeof (adj[0])); |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 44 | } |
| 45 | } |
| 46 | |
| 47 | ip_adjacency_t * |
| 48 | adj_alloc (fib_protocol_t proto) |
| 49 | { |
| 50 | ip_adjacency_t *adj; |
| 51 | |
Neale Ranns | fa5d198 | 2017-02-20 14:19:51 -0800 | [diff] [blame] | 52 | pool_get_aligned(adj_pool, adj, CLIB_CACHE_LINE_BYTES); |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 53 | |
| 54 | adj_poison(adj); |
| 55 | |
| 56 | /* Make sure certain fields are always initialized. */ |
| 57 | /* Validate adjacency counters. */ |
| 58 | vlib_validate_combined_counter(&adjacency_counters, |
Neale Ranns | 6c3ebcc | 2016-10-02 21:20:15 +0100 | [diff] [blame] | 59 | adj_get_index(adj)); |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 60 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 61 | fib_node_init(&adj->ia_node, |
| 62 | FIB_NODE_TYPE_ADJ); |
Neale Ranns | 88fc83e | 2017-04-05 08:11:14 -0700 | [diff] [blame] | 63 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 64 | adj->ia_nh_proto = proto; |
Neale Ranns | 19c68d2 | 2016-12-07 15:38:14 +0000 | [diff] [blame] | 65 | adj->ia_flags = 0; |
Neale Ranns | 88fc83e | 2017-04-05 08:11:14 -0700 | [diff] [blame] | 66 | adj->rewrite_header.sw_if_index = ~0; |
Neale Ranns | 8c4611b | 2017-05-23 03:43:47 -0700 | [diff] [blame] | 67 | adj->rewrite_header.flags = 0; |
Neale Ranns | 88fc83e | 2017-04-05 08:11:14 -0700 | [diff] [blame] | 68 | adj->lookup_next_index = 0; |
| 69 | adj->ia_delegates = NULL; |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 70 | |
Neale Ranns | 0f26c5a | 2017-03-01 15:12:11 -0800 | [diff] [blame] | 71 | /* lest it become a midchain in the future */ |
| 72 | memset(&adj->sub_type.midchain.next_dpo, 0, |
| 73 | sizeof(adj->sub_type.midchain.next_dpo)); |
| 74 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 75 | return (adj); |
| 76 | } |
| 77 | |
| 78 | static int |
| 79 | adj_index_is_special (adj_index_t adj_index) |
| 80 | { |
| 81 | if (ADJ_INDEX_INVALID == adj_index) |
| 82 | return (!0); |
| 83 | |
| 84 | return (0); |
| 85 | } |
| 86 | |
| 87 | /** |
| 88 | * @brief Pretty print helper function for formatting specific adjacencies. |
| 89 | * @param s - input string to format |
| 90 | * @param args - other args passed to format function such as: |
| 91 | * - vnet_main_t |
| 92 | * - ip_lookup_main_t |
| 93 | * - adj_index |
| 94 | */ |
| 95 | u8 * |
| 96 | format_ip_adjacency (u8 * s, va_list * args) |
| 97 | { |
Neale Ranns | b80c536 | 2016-10-08 13:03:40 +0100 | [diff] [blame] | 98 | format_ip_adjacency_flags_t fiaf; |
| 99 | ip_adjacency_t * adj; |
| 100 | u32 adj_index; |
| 101 | |
| 102 | adj_index = va_arg (*args, u32); |
| 103 | fiaf = va_arg (*args, format_ip_adjacency_flags_t); |
| 104 | adj = adj_get(adj_index); |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 105 | |
Neale Ranns | b80c536 | 2016-10-08 13:03:40 +0100 | [diff] [blame] | 106 | switch (adj->lookup_next_index) |
| 107 | { |
| 108 | case IP_LOOKUP_NEXT_REWRITE: |
| 109 | s = format (s, "%U", format_adj_nbr, adj_index, 0); |
| 110 | break; |
| 111 | case IP_LOOKUP_NEXT_ARP: |
| 112 | s = format (s, "%U", format_adj_nbr_incomplete, adj_index, 0); |
| 113 | break; |
| 114 | case IP_LOOKUP_NEXT_GLEAN: |
| 115 | s = format (s, "%U", format_adj_glean, adj_index, 0); |
| 116 | break; |
| 117 | case IP_LOOKUP_NEXT_MIDCHAIN: |
| 118 | s = format (s, "%U", format_adj_midchain, adj_index, 2); |
| 119 | break; |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 120 | case IP_LOOKUP_NEXT_MCAST: |
| 121 | s = format (s, "%U", format_adj_mcast, adj_index, 0); |
| 122 | break; |
Neale Ranns | 0f26c5a | 2017-03-01 15:12:11 -0800 | [diff] [blame] | 123 | case IP_LOOKUP_NEXT_MCAST_MIDCHAIN: |
| 124 | s = format (s, "%U", format_adj_mcast_midchain, adj_index, 0); |
| 125 | break; |
Neale Ranns | b80c536 | 2016-10-08 13:03:40 +0100 | [diff] [blame] | 126 | default: |
| 127 | break; |
| 128 | } |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 129 | |
Neale Ranns | b80c536 | 2016-10-08 13:03:40 +0100 | [diff] [blame] | 130 | if (fiaf & FORMAT_IP_ADJACENCY_DETAIL) |
| 131 | { |
Neale Ranns | 044183f | 2017-01-24 01:34:25 -0800 | [diff] [blame] | 132 | vlib_counter_t counts; |
| 133 | |
| 134 | vlib_get_combined_counter(&adjacency_counters, adj_index, &counts); |
Neale Ranns | 2303cb1 | 2018-02-21 04:57:17 -0800 | [diff] [blame] | 135 | s = format (s, "\n counts:[%Ld:%Ld]", counts.packets, counts.bytes); |
| 136 | s = format (s, "\n locks:%d", adj->ia_node.fn_locks); |
Neale Ranns | 88fc83e | 2017-04-05 08:11:14 -0700 | [diff] [blame] | 137 | s = format(s, "\n delegates:\n "); |
Neale Ranns | d79a43c | 2018-02-19 02:36:19 -0800 | [diff] [blame] | 138 | adj_delegate_format(s, adj); |
Neale Ranns | 88fc83e | 2017-04-05 08:11:14 -0700 | [diff] [blame] | 139 | |
Neale Ranns | 2303cb1 | 2018-02-21 04:57:17 -0800 | [diff] [blame] | 140 | s = format(s, "\n children:"); |
| 141 | if (fib_node_list_get_size(adj->ia_node.fn_children)) |
| 142 | { |
| 143 | s = format(s, "\n "); |
| 144 | s = fib_node_children_format(adj->ia_node.fn_children, s); |
| 145 | } |
Neale Ranns | b80c536 | 2016-10-08 13:03:40 +0100 | [diff] [blame] | 146 | } |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 147 | |
Neale Ranns | b80c536 | 2016-10-08 13:03:40 +0100 | [diff] [blame] | 148 | return s; |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 149 | } |
| 150 | |
| 151 | /* |
| 152 | * adj_last_lock_gone |
| 153 | * |
| 154 | * last lock/reference to the adj has gone, we no longer need it. |
| 155 | */ |
| 156 | static void |
| 157 | adj_last_lock_gone (ip_adjacency_t *adj) |
| 158 | { |
Neale Ranns | b80c536 | 2016-10-08 13:03:40 +0100 | [diff] [blame] | 159 | vlib_main_t * vm = vlib_get_main(); |
| 160 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 161 | ASSERT(0 == fib_node_list_get_size(adj->ia_node.fn_children)); |
| 162 | ADJ_DBG(adj, "last-lock-gone"); |
| 163 | |
Neale Ranns | d79a43c | 2018-02-19 02:36:19 -0800 | [diff] [blame] | 164 | adj_delegate_adj_deleted(adj); |
Ole Troan | 793c7fe | 2018-02-15 16:14:56 +0100 | [diff] [blame] | 165 | |
Neale Ranns | b80c536 | 2016-10-08 13:03:40 +0100 | [diff] [blame] | 166 | vlib_worker_thread_barrier_sync (vm); |
| 167 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 168 | switch (adj->lookup_next_index) |
| 169 | { |
| 170 | case IP_LOOKUP_NEXT_MIDCHAIN: |
| 171 | dpo_reset(&adj->sub_type.midchain.next_dpo); |
| 172 | /* FALL THROUGH */ |
| 173 | case IP_LOOKUP_NEXT_ARP: |
| 174 | case IP_LOOKUP_NEXT_REWRITE: |
| 175 | /* |
| 176 | * complete and incomplete nbr adjs |
| 177 | */ |
Neale Ranns | 177bbdc | 2016-11-15 09:46:51 +0000 | [diff] [blame] | 178 | adj_nbr_remove(adj_get_index(adj), |
| 179 | adj->ia_nh_proto, |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 180 | adj->ia_link, |
| 181 | &adj->sub_type.nbr.next_hop, |
| 182 | adj->rewrite_header.sw_if_index); |
| 183 | break; |
| 184 | case IP_LOOKUP_NEXT_GLEAN: |
| 185 | adj_glean_remove(adj->ia_nh_proto, |
| 186 | adj->rewrite_header.sw_if_index); |
| 187 | break; |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 188 | case IP_LOOKUP_NEXT_MCAST: |
Neale Ranns | 0f26c5a | 2017-03-01 15:12:11 -0800 | [diff] [blame] | 189 | case IP_LOOKUP_NEXT_MCAST_MIDCHAIN: |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 190 | adj_mcast_remove(adj->ia_nh_proto, |
| 191 | adj->rewrite_header.sw_if_index); |
| 192 | break; |
Neale Ranns | 88fc83e | 2017-04-05 08:11:14 -0700 | [diff] [blame] | 193 | case IP_LOOKUP_NEXT_DROP: |
| 194 | case IP_LOOKUP_NEXT_PUNT: |
| 195 | case IP_LOOKUP_NEXT_LOCAL: |
| 196 | case IP_LOOKUP_NEXT_ICMP_ERROR: |
| 197 | case IP_LOOKUP_N_NEXT: |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 198 | /* |
| 199 | * type not stored in any DB from which we need to remove it |
| 200 | */ |
| 201 | break; |
| 202 | } |
| 203 | |
Neale Ranns | b80c536 | 2016-10-08 13:03:40 +0100 | [diff] [blame] | 204 | vlib_worker_thread_barrier_release(vm); |
| 205 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 206 | fib_node_deinit(&adj->ia_node); |
Neale Ranns | 88fc83e | 2017-04-05 08:11:14 -0700 | [diff] [blame] | 207 | ASSERT(0 == vec_len(adj->ia_delegates)); |
| 208 | vec_free(adj->ia_delegates); |
Neale Ranns | 6c3ebcc | 2016-10-02 21:20:15 +0100 | [diff] [blame] | 209 | pool_put(adj_pool, adj); |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 210 | } |
| 211 | |
Andrew Yourtchenko | 5f3fcb9 | 2017-10-25 05:50:37 -0700 | [diff] [blame] | 212 | u32 |
| 213 | adj_dpo_get_urpf (const dpo_id_t *dpo) |
| 214 | { |
| 215 | ip_adjacency_t *adj; |
| 216 | |
| 217 | adj = adj_get(dpo->dpoi_index); |
| 218 | |
| 219 | return (adj->rewrite_header.sw_if_index); |
| 220 | } |
| 221 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 222 | void |
| 223 | adj_lock (adj_index_t adj_index) |
| 224 | { |
| 225 | ip_adjacency_t *adj; |
| 226 | |
| 227 | if (adj_index_is_special(adj_index)) |
| 228 | { |
| 229 | return; |
| 230 | } |
| 231 | |
| 232 | adj = adj_get(adj_index); |
| 233 | ASSERT(adj); |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 234 | |
| 235 | ADJ_DBG(adj, "lock"); |
| 236 | fib_node_lock(&adj->ia_node); |
| 237 | } |
| 238 | |
| 239 | void |
| 240 | adj_unlock (adj_index_t adj_index) |
| 241 | { |
| 242 | ip_adjacency_t *adj; |
| 243 | |
| 244 | if (adj_index_is_special(adj_index)) |
| 245 | { |
| 246 | return; |
| 247 | } |
| 248 | |
| 249 | adj = adj_get(adj_index); |
| 250 | ASSERT(adj); |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 251 | |
| 252 | ADJ_DBG(adj, "unlock"); |
| 253 | ASSERT(adj); |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 254 | |
| 255 | fib_node_unlock(&adj->ia_node); |
| 256 | } |
| 257 | |
| 258 | u32 |
| 259 | adj_child_add (adj_index_t adj_index, |
| 260 | fib_node_type_t child_type, |
| 261 | fib_node_index_t child_index) |
| 262 | { |
| 263 | ASSERT(ADJ_INDEX_INVALID != adj_index); |
| 264 | if (adj_index_is_special(adj_index)) |
| 265 | { |
| 266 | return (~0); |
| 267 | } |
| 268 | |
| 269 | return (fib_node_child_add(FIB_NODE_TYPE_ADJ, |
| 270 | adj_index, |
| 271 | child_type, |
| 272 | child_index)); |
| 273 | } |
| 274 | |
| 275 | void |
| 276 | adj_child_remove (adj_index_t adj_index, |
| 277 | u32 sibling_index) |
| 278 | { |
| 279 | if (adj_index_is_special(adj_index)) |
| 280 | { |
| 281 | return; |
| 282 | } |
| 283 | |
| 284 | fib_node_child_remove(FIB_NODE_TYPE_ADJ, |
| 285 | adj_index, |
| 286 | sibling_index); |
| 287 | } |
| 288 | |
Neale Ranns | b069a69 | 2017-03-15 12:34:25 -0400 | [diff] [blame] | 289 | /* |
| 290 | * Context for the walk to update the cached feture flags. |
| 291 | */ |
| 292 | typedef struct adj_feature_update_t_ |
| 293 | { |
| 294 | u8 arc; |
| 295 | u8 enable; |
| 296 | } adj_feature_update_ctx_t; |
| 297 | |
| 298 | static adj_walk_rc_t |
| 299 | adj_feature_update_walk_cb (adj_index_t ai, |
| 300 | void *arg) |
| 301 | { |
| 302 | adj_feature_update_ctx_t *ctx = arg; |
| 303 | ip_adjacency_t *adj; |
| 304 | |
| 305 | adj = adj_get(ai); |
| 306 | |
| 307 | /* |
| 308 | * this ugly mess matches the feature arc that is changing with affected |
| 309 | * adjacencies |
| 310 | */ |
| 311 | if (((ctx->arc == ip6_main.lookup_main.output_feature_arc_index) && |
| 312 | (VNET_LINK_IP6 == adj->ia_link)) || |
| 313 | ((ctx->arc == ip4_main.lookup_main.output_feature_arc_index) && |
| 314 | (VNET_LINK_IP4 == adj->ia_link)) || |
| 315 | ((ctx->arc == mpls_main.output_feature_arc_index) && |
| 316 | (VNET_LINK_MPLS == adj->ia_link))) |
| 317 | { |
| 318 | if (ctx->enable) |
| 319 | adj->rewrite_header.flags |= VNET_REWRITE_HAS_FEATURES; |
| 320 | else |
| 321 | adj->rewrite_header.flags &= ~VNET_REWRITE_HAS_FEATURES; |
| 322 | } |
| 323 | return (ADJ_WALK_RC_CONTINUE); |
| 324 | } |
| 325 | |
| 326 | void |
| 327 | adj_feature_update (u32 sw_if_index, |
| 328 | u8 arc_index, |
| 329 | u8 is_enable) |
| 330 | { |
| 331 | /* |
| 332 | * Walk all the adjacencies on the interface to update the cached |
| 333 | * 'has-features' flag |
| 334 | */ |
| 335 | adj_feature_update_ctx_t ctx = { |
| 336 | .arc = arc_index, |
| 337 | .enable = is_enable, |
| 338 | }; |
| 339 | adj_walk (sw_if_index, adj_feature_update_walk_cb, &ctx); |
| 340 | } |
| 341 | |
Neale Ranns | ffd78d1 | 2018-02-09 06:05:16 -0800 | [diff] [blame] | 342 | static adj_walk_rc_t |
| 343 | adj_mtu_update_walk_cb (adj_index_t ai, |
| 344 | void *arg) |
| 345 | { |
| 346 | ip_adjacency_t *adj; |
| 347 | |
| 348 | adj = adj_get(ai); |
| 349 | |
| 350 | vnet_rewrite_update_mtu (vnet_get_main(), |
| 351 | &adj->rewrite_header); |
| 352 | |
| 353 | return (ADJ_WALK_RC_CONTINUE); |
| 354 | } |
| 355 | |
Damjan Marion | fe7d4a2 | 2018-04-13 19:43:39 +0200 | [diff] [blame^] | 356 | static void |
| 357 | adj_sw_mtu_update (vnet_main_t * vnm, |
| 358 | u32 sw_if_index, |
| 359 | void *ctx) |
Neale Ranns | ffd78d1 | 2018-02-09 06:05:16 -0800 | [diff] [blame] | 360 | { |
| 361 | /* |
| 362 | * Walk all the adjacencies on the interface to update the cached MTU |
| 363 | */ |
| 364 | adj_walk (sw_if_index, adj_mtu_update_walk_cb, NULL); |
| 365 | } |
| 366 | |
Damjan Marion | fe7d4a2 | 2018-04-13 19:43:39 +0200 | [diff] [blame^] | 367 | void |
| 368 | adj_mtu_update (u32 hw_if_index) |
| 369 | { |
| 370 | /* |
| 371 | * Walk all the SW interfaces on the HW interface to update the cached MTU |
| 372 | */ |
| 373 | vnet_hw_interface_walk_sw(vnet_get_main(), |
| 374 | hw_if_index, |
| 375 | adj_sw_mtu_update, |
| 376 | NULL); |
| 377 | } |
| 378 | |
Neale Ranns | b069a69 | 2017-03-15 12:34:25 -0400 | [diff] [blame] | 379 | /** |
| 380 | * @brief Walk the Adjacencies on a given interface |
| 381 | */ |
| 382 | void |
| 383 | adj_walk (u32 sw_if_index, |
| 384 | adj_walk_cb_t cb, |
| 385 | void *ctx) |
| 386 | { |
| 387 | /* |
| 388 | * walk all the neighbor adjacencies |
| 389 | */ |
| 390 | fib_protocol_t proto; |
| 391 | |
| 392 | FOR_EACH_FIB_IP_PROTOCOL(proto) |
| 393 | { |
| 394 | adj_nbr_walk(sw_if_index, proto, cb, ctx); |
Neale Ranns | 0f26c5a | 2017-03-01 15:12:11 -0800 | [diff] [blame] | 395 | adj_mcast_walk(sw_if_index, proto, cb, ctx); |
Neale Ranns | b069a69 | 2017-03-15 12:34:25 -0400 | [diff] [blame] | 396 | } |
| 397 | } |
| 398 | |
Neale Ranns | b80c536 | 2016-10-08 13:03:40 +0100 | [diff] [blame] | 399 | /** |
| 400 | * @brief Return the link type of the adjacency |
| 401 | */ |
| 402 | vnet_link_t |
| 403 | adj_get_link_type (adj_index_t ai) |
| 404 | { |
| 405 | const ip_adjacency_t *adj; |
| 406 | |
| 407 | adj = adj_get(ai); |
| 408 | |
| 409 | return (adj->ia_link); |
| 410 | } |
| 411 | |
| 412 | /** |
| 413 | * @brief Return the sw interface index of the adjacency. |
| 414 | */ |
| 415 | u32 |
| 416 | adj_get_sw_if_index (adj_index_t ai) |
| 417 | { |
| 418 | const ip_adjacency_t *adj; |
| 419 | |
| 420 | adj = adj_get(ai); |
| 421 | |
| 422 | return (adj->rewrite_header.sw_if_index); |
| 423 | } |
| 424 | |
| 425 | /** |
Neale Ranns | 88fc83e | 2017-04-05 08:11:14 -0700 | [diff] [blame] | 426 | * @brief Return true if the adjacency is 'UP', i.e. can be used for forwarding |
| 427 | * 0 is down, !0 is up. |
| 428 | */ |
| 429 | int |
| 430 | adj_is_up (adj_index_t ai) |
| 431 | { |
Neale Ranns | d79a43c | 2018-02-19 02:36:19 -0800 | [diff] [blame] | 432 | return (adj_bfd_is_up(ai)); |
Neale Ranns | 88fc83e | 2017-04-05 08:11:14 -0700 | [diff] [blame] | 433 | } |
| 434 | |
| 435 | /** |
Neale Ranns | 2e7fbcc | 2017-03-15 04:22:25 -0700 | [diff] [blame] | 436 | * @brief Return the rewrite string of the adjacency |
Neale Ranns | b80c536 | 2016-10-08 13:03:40 +0100 | [diff] [blame] | 437 | */ |
| 438 | const u8* |
| 439 | adj_get_rewrite (adj_index_t ai) |
| 440 | { |
| 441 | vnet_rewrite_header_t *rw; |
| 442 | ip_adjacency_t *adj; |
| 443 | |
| 444 | adj = adj_get(ai); |
| 445 | rw = &adj->rewrite_header; |
| 446 | |
| 447 | ASSERT (rw->data_bytes != 0xfefe); |
| 448 | |
| 449 | return (rw->data - rw->data_bytes); |
| 450 | } |
| 451 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 452 | static fib_node_t * |
| 453 | adj_get_node (fib_node_index_t index) |
| 454 | { |
| 455 | ip_adjacency_t *adj; |
| 456 | |
| 457 | adj = adj_get(index); |
| 458 | |
| 459 | return (&adj->ia_node); |
| 460 | } |
| 461 | |
| 462 | #define ADJ_FROM_NODE(_node) \ |
| 463 | ((ip_adjacency_t*)((char*)_node - STRUCT_OFFSET_OF(ip_adjacency_t, ia_node))) |
| 464 | |
| 465 | static void |
| 466 | adj_node_last_lock_gone (fib_node_t *node) |
| 467 | { |
| 468 | adj_last_lock_gone(ADJ_FROM_NODE(node)); |
| 469 | } |
| 470 | |
| 471 | static fib_node_back_walk_rc_t |
| 472 | adj_back_walk_notify (fib_node_t *node, |
| 473 | fib_node_back_walk_ctx_t *ctx) |
| 474 | { |
| 475 | /* |
| 476 | * Que pasa. yo soj en el final! |
| 477 | */ |
| 478 | ASSERT(0); |
| 479 | |
| 480 | return (FIB_NODE_BACK_WALK_CONTINUE); |
| 481 | } |
| 482 | |
| 483 | /* |
| 484 | * Adjacency's graph node virtual function table |
| 485 | */ |
| 486 | static const fib_node_vft_t adj_vft = { |
| 487 | .fnv_get = adj_get_node, |
| 488 | .fnv_last_lock = adj_node_last_lock_gone, |
| 489 | .fnv_back_walk = adj_back_walk_notify, |
| 490 | }; |
| 491 | |
| 492 | static clib_error_t * |
| 493 | adj_module_init (vlib_main_t * vm) |
| 494 | { |
| 495 | fib_node_register_type(FIB_NODE_TYPE_ADJ, &adj_vft); |
| 496 | |
| 497 | adj_nbr_module_init(); |
| 498 | adj_glean_module_init(); |
| 499 | adj_midchain_module_init(); |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 500 | adj_mcast_module_init(); |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 501 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 502 | return (NULL); |
| 503 | } |
| 504 | |
| 505 | VLIB_INIT_FUNCTION (adj_module_init); |
| 506 | |
Neale Ranns | b80c536 | 2016-10-08 13:03:40 +0100 | [diff] [blame] | 507 | static clib_error_t * |
| 508 | adj_show (vlib_main_t * vm, |
| 509 | unformat_input_t * input, |
| 510 | vlib_cli_command_t * cmd) |
| 511 | { |
| 512 | adj_index_t ai = ADJ_INDEX_INVALID; |
| 513 | u32 sw_if_index = ~0; |
Neale Ranns | 9c6a613 | 2017-02-21 05:33:14 -0800 | [diff] [blame] | 514 | int summary = 0; |
Neale Ranns | b80c536 | 2016-10-08 13:03:40 +0100 | [diff] [blame] | 515 | |
| 516 | while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) |
| 517 | { |
| 518 | if (unformat (input, "%d", &ai)) |
| 519 | ; |
Neale Ranns | 9c6a613 | 2017-02-21 05:33:14 -0800 | [diff] [blame] | 520 | else if (unformat (input, "sum")) |
| 521 | summary = 1; |
| 522 | else if (unformat (input, "summary")) |
| 523 | summary = 1; |
Neale Ranns | b80c536 | 2016-10-08 13:03:40 +0100 | [diff] [blame] | 524 | else if (unformat (input, "%U", |
| 525 | unformat_vnet_sw_interface, vnet_get_main(), |
| 526 | &sw_if_index)) |
| 527 | ; |
| 528 | else |
| 529 | break; |
| 530 | } |
| 531 | |
Neale Ranns | 9c6a613 | 2017-02-21 05:33:14 -0800 | [diff] [blame] | 532 | if (summary) |
Neale Ranns | b80c536 | 2016-10-08 13:03:40 +0100 | [diff] [blame] | 533 | { |
Neale Ranns | 9c6a613 | 2017-02-21 05:33:14 -0800 | [diff] [blame] | 534 | vlib_cli_output (vm, "Number of adjacenies: %d", pool_elts(adj_pool)); |
| 535 | vlib_cli_output (vm, "Per-adjacency counters: %s", |
| 536 | (adj_are_counters_enabled() ? |
| 537 | "enabled": |
| 538 | "disabled")); |
Neale Ranns | b80c536 | 2016-10-08 13:03:40 +0100 | [diff] [blame] | 539 | } |
| 540 | else |
| 541 | { |
Neale Ranns | 9c6a613 | 2017-02-21 05:33:14 -0800 | [diff] [blame] | 542 | if (ADJ_INDEX_INVALID != ai) |
| 543 | { |
| 544 | if (pool_is_free_index(adj_pool, ai)) |
Neale Ranns | 8b37b87 | 2016-11-21 12:25:22 +0000 | [diff] [blame] | 545 | { |
Neale Ranns | 9c6a613 | 2017-02-21 05:33:14 -0800 | [diff] [blame] | 546 | vlib_cli_output (vm, "adjacency %d invalid", ai); |
| 547 | return 0; |
| 548 | } |
Neale Ranns | b80c536 | 2016-10-08 13:03:40 +0100 | [diff] [blame] | 549 | |
Neale Ranns | 9c6a613 | 2017-02-21 05:33:14 -0800 | [diff] [blame] | 550 | vlib_cli_output (vm, "[@%d] %U", |
| 551 | ai, |
| 552 | format_ip_adjacency, ai, |
| 553 | FORMAT_IP_ADJACENCY_DETAIL); |
| 554 | } |
| 555 | else |
| 556 | { |
| 557 | /* *INDENT-OFF* */ |
| 558 | pool_foreach_index(ai, adj_pool, |
| 559 | ({ |
| 560 | if (~0 != sw_if_index && |
| 561 | sw_if_index != adj_get_sw_if_index(ai)) |
| 562 | { |
| 563 | } |
| 564 | else |
| 565 | { |
| 566 | vlib_cli_output (vm, "[@%d] %U", |
| 567 | ai, |
| 568 | format_ip_adjacency, ai, |
| 569 | FORMAT_IP_ADJACENCY_NONE); |
| 570 | } |
| 571 | })); |
| 572 | /* *INDENT-ON* */ |
| 573 | } |
| 574 | } |
Neale Ranns | b80c536 | 2016-10-08 13:03:40 +0100 | [diff] [blame] | 575 | return 0; |
| 576 | } |
| 577 | |
| 578 | /*? |
| 579 | * Show all adjacencies. |
| 580 | * @cliexpar |
| 581 | * @cliexstart{sh adj} |
| 582 | * [@0] |
| 583 | * [@1] glean: loop0 |
| 584 | * [@2] ipv4 via 1.0.0.2 loop0: IP4: 00:00:22:aa:bb:cc -> 00:00:11:aa:bb:cc |
Neale Ranns | 0f26c5a | 2017-03-01 15:12:11 -0800 | [diff] [blame] | 585 | * [@3] mpls via 1.0.0.2 loop0: MPLS: 00:00:22:aa:bb:cc -> 00:00:11:aa:bb:cc |
Neale Ranns | b80c536 | 2016-10-08 13:03:40 +0100 | [diff] [blame] | 586 | * [@4] ipv4 via 1.0.0.3 loop0: IP4: 00:00:22:aa:bb:cc -> 00:00:11:aa:bb:cc |
Neale Ranns | 0f26c5a | 2017-03-01 15:12:11 -0800 | [diff] [blame] | 587 | * [@5] mpls via 1.0.0.3 loop0: MPLS: 00:00:22:aa:bb:cc -> 00:00:11:aa:bb:cc |
Neale Ranns | b80c536 | 2016-10-08 13:03:40 +0100 | [diff] [blame] | 588 | * @cliexend |
| 589 | ?*/ |
| 590 | VLIB_CLI_COMMAND (adj_show_command, static) = { |
| 591 | .path = "show adj", |
Neale Ranns | 9c6a613 | 2017-02-21 05:33:14 -0800 | [diff] [blame] | 592 | .short_help = "show adj [<adj_index>] [interface] [summary]", |
Neale Ranns | b80c536 | 2016-10-08 13:03:40 +0100 | [diff] [blame] | 593 | .function = adj_show, |
| 594 | }; |
Neale Ranns | 9c6a613 | 2017-02-21 05:33:14 -0800 | [diff] [blame] | 595 | |
| 596 | /** |
| 597 | * @brief CLI invoked function to enable/disable per-adj counters |
| 598 | */ |
| 599 | static clib_error_t * |
| 600 | adj_cli_counters_set (vlib_main_t * vm, |
| 601 | unformat_input_t * input, |
| 602 | vlib_cli_command_t * cmd) |
| 603 | { |
| 604 | clib_error_t *error = NULL; |
| 605 | int enable = ~0; |
| 606 | |
| 607 | while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) |
| 608 | { |
| 609 | if (unformat (input, "enable")) |
| 610 | enable = 1; |
| 611 | else if (unformat (input, "disable")) |
| 612 | enable = 0; |
| 613 | else |
| 614 | break; |
| 615 | } |
| 616 | |
| 617 | if (enable != ~0) |
| 618 | { |
| 619 | /* user requested something sensible */ |
| 620 | adj_per_adj_counters = enable; |
| 621 | } |
| 622 | else |
| 623 | { |
| 624 | error = clib_error_return (0, "specify 'enable' or 'disable'"); |
| 625 | } |
| 626 | |
| 627 | return (error); |
| 628 | } |
| 629 | |
| 630 | /*? |
| 631 | * Enabe/disble per-adjacency counters. This is optional because it comes with |
| 632 | * a non-negligible performance cost. |
| 633 | ?*/ |
| 634 | VLIB_CLI_COMMAND (adj_cli_counters_set_command, static) = { |
| 635 | .path = "adjacency counters", |
| 636 | .short_help = "adjacency counters [enable|disable]", |
| 637 | .function = adj_cli_counters_set, |
| 638 | }; |