Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [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/mfib/ip4_mfib.h> |
| 17 | |
| 18 | #include <vnet/mfib/mfib_table.h> |
| 19 | #include <vnet/mfib/mfib_entry.h> |
| 20 | |
Neale Ranns | 03c254e | 2020-03-17 14:25:10 +0000 | [diff] [blame] | 21 | static const mfib_prefix_t all_zeros = |
| 22 | { |
| 23 | .fp_proto = FIB_PROTOCOL_IP4, |
| 24 | }; |
| 25 | static const mfib_prefix_t ip4_specials[] = |
| 26 | { |
| 27 | /* ALL prefixes are in network order */ |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 28 | { |
Neale Ranns | 03c254e | 2020-03-17 14:25:10 +0000 | [diff] [blame] | 29 | /* (*,224.0.0.1)/32 - all hosts */ |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 30 | .fp_grp_addr = { |
Neale Ranns | 03c254e | 2020-03-17 14:25:10 +0000 | [diff] [blame] | 31 | .ip4.data_u32 = 0x010000e0, |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 32 | }, |
Neale Ranns | 03c254e | 2020-03-17 14:25:10 +0000 | [diff] [blame] | 33 | .fp_len = 32, |
| 34 | .fp_proto = FIB_PROTOCOL_IP4, |
| 35 | }, |
| 36 | { |
| 37 | /* (*,224.0.0.2)/32 - all routers */ |
| 38 | .fp_grp_addr = { |
| 39 | .ip4.data_u32 = 0x020000e0, |
| 40 | }, |
| 41 | .fp_len = 32, |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 42 | .fp_proto = FIB_PROTOCOL_IP4, |
| 43 | }, |
| 44 | }; |
| 45 | |
| 46 | static u32 |
Neale Ranns | 1500254 | 2017-09-10 04:39:11 -0700 | [diff] [blame] | 47 | ip4_create_mfib_with_table_id (u32 table_id, |
| 48 | mfib_source_t src) |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 49 | { |
| 50 | mfib_table_t *mfib_table; |
| 51 | |
| 52 | pool_get_aligned(ip4_main.mfibs, mfib_table, CLIB_CACHE_LINE_BYTES); |
Dave Barach | b7b9299 | 2018-10-17 10:38:51 -0400 | [diff] [blame] | 53 | clib_memset(mfib_table, 0, sizeof(*mfib_table)); |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 54 | |
| 55 | mfib_table->mft_proto = FIB_PROTOCOL_IP4; |
| 56 | mfib_table->mft_index = |
| 57 | mfib_table->v4.index = |
| 58 | (mfib_table - ip4_main.mfibs); |
| 59 | |
| 60 | hash_set (ip4_main.mfib_index_by_table_id, |
| 61 | table_id, |
| 62 | mfib_table->mft_index); |
| 63 | |
| 64 | mfib_table->mft_table_id = |
| 65 | mfib_table->v4.table_id = |
| 66 | table_id; |
| 67 | |
Neale Ranns | 1500254 | 2017-09-10 04:39:11 -0700 | [diff] [blame] | 68 | mfib_table_lock(mfib_table->mft_index, FIB_PROTOCOL_IP4, src); |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 69 | |
| 70 | /* |
Neale Ranns | 03c254e | 2020-03-17 14:25:10 +0000 | [diff] [blame] | 71 | * add the default route into the new FIB |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 72 | */ |
Neale Ranns | 03c254e | 2020-03-17 14:25:10 +0000 | [diff] [blame] | 73 | mfib_table_entry_update(mfib_table->mft_index, |
| 74 | &all_zeros, |
| 75 | MFIB_SOURCE_DEFAULT_ROUTE, |
| 76 | MFIB_RPF_ID_NONE, |
| 77 | MFIB_ENTRY_FLAG_DROP); |
| 78 | |
| 79 | const fib_route_path_t path = { |
| 80 | .frp_proto = DPO_PROTO_IP4, |
| 81 | .frp_addr = zero_addr, |
| 82 | .frp_sw_if_index = ~0, |
| 83 | .frp_fib_index = ~0, |
| 84 | .frp_weight = 1, |
| 85 | .frp_flags = FIB_ROUTE_PATH_LOCAL, |
| 86 | .frp_mitf_flags = MFIB_ITF_FLAG_FORWARD, |
| 87 | }; |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 88 | int ii; |
| 89 | |
| 90 | for (ii = 0; ii < ARRAY_LEN(ip4_specials); ii++) |
| 91 | { |
Neale Ranns | 03c254e | 2020-03-17 14:25:10 +0000 | [diff] [blame] | 92 | mfib_table_entry_path_update(mfib_table->mft_index, |
| 93 | &ip4_specials[ii], |
| 94 | MFIB_SOURCE_SPECIAL, |
| 95 | &path); |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 96 | } |
| 97 | |
| 98 | return (mfib_table->mft_index); |
| 99 | } |
| 100 | |
| 101 | void |
| 102 | ip4_mfib_table_destroy (ip4_mfib_t *mfib) |
| 103 | { |
| 104 | mfib_table_t *mfib_table = (mfib_table_t*)mfib; |
| 105 | int ii; |
| 106 | |
| 107 | /* |
| 108 | * remove all the specials we added when the table was created. |
| 109 | */ |
Neale Ranns | 03c254e | 2020-03-17 14:25:10 +0000 | [diff] [blame] | 110 | mfib_table_entry_delete(mfib_table->mft_index, |
| 111 | &all_zeros, |
| 112 | MFIB_SOURCE_DEFAULT_ROUTE); |
| 113 | |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 114 | for (ii = 0; ii < ARRAY_LEN(ip4_specials); ii++) |
| 115 | { |
Neale Ranns | 03c254e | 2020-03-17 14:25:10 +0000 | [diff] [blame] | 116 | mfib_table_entry_delete(mfib_table->mft_index, |
| 117 | &ip4_specials[ii], |
| 118 | MFIB_SOURCE_SPECIAL); |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 119 | } |
| 120 | |
| 121 | /* |
| 122 | * validate no more routes. |
| 123 | */ |
| 124 | ASSERT(0 == mfib_table->mft_total_route_counts); |
| 125 | ASSERT(~0 != mfib_table->mft_table_id); |
| 126 | |
| 127 | hash_unset (ip4_main.mfib_index_by_table_id, mfib_table->mft_table_id); |
| 128 | pool_put(ip4_main.mfibs, mfib_table); |
| 129 | } |
| 130 | |
Neale Ranns | 03c254e | 2020-03-17 14:25:10 +0000 | [diff] [blame] | 131 | void |
| 132 | ip4_mfib_interface_enable_disable (u32 sw_if_index, int is_enable) |
| 133 | { |
| 134 | const fib_route_path_t path = { |
| 135 | .frp_proto = DPO_PROTO_IP4, |
| 136 | .frp_addr = zero_addr, |
| 137 | .frp_sw_if_index = sw_if_index, |
| 138 | .frp_fib_index = ~0, |
| 139 | .frp_weight = 1, |
| 140 | .frp_mitf_flags = MFIB_ITF_FLAG_ACCEPT, |
| 141 | }; |
| 142 | u32 mfib_index; |
| 143 | int ii; |
| 144 | |
| 145 | vec_validate (ip4_main.mfib_index_by_sw_if_index, sw_if_index); |
| 146 | mfib_index = ip4_mfib_table_get_index_for_sw_if_index(sw_if_index); |
| 147 | |
| 148 | for (ii = 0; ii < ARRAY_LEN(ip4_specials); ii++) |
| 149 | { |
| 150 | if (is_enable) |
| 151 | { |
| 152 | mfib_table_entry_path_update(mfib_index, |
| 153 | &ip4_specials[ii], |
| 154 | MFIB_SOURCE_SPECIAL, |
| 155 | &path); |
| 156 | } |
| 157 | else |
| 158 | { |
| 159 | mfib_table_entry_path_remove(mfib_index, |
| 160 | &ip4_specials[ii], |
| 161 | MFIB_SOURCE_SPECIAL, |
| 162 | &path); |
| 163 | } |
| 164 | } |
| 165 | } |
| 166 | |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 167 | u32 |
Neale Ranns | 1500254 | 2017-09-10 04:39:11 -0700 | [diff] [blame] | 168 | ip4_mfib_table_find_or_create_and_lock (u32 table_id, |
| 169 | mfib_source_t src) |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 170 | { |
| 171 | u32 index; |
| 172 | |
| 173 | index = ip4_mfib_index_from_table_id(table_id); |
| 174 | if (~0 == index) |
Neale Ranns | 1500254 | 2017-09-10 04:39:11 -0700 | [diff] [blame] | 175 | return ip4_create_mfib_with_table_id(table_id, src); |
| 176 | mfib_table_lock(index, FIB_PROTOCOL_IP4, src); |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 177 | |
| 178 | return (index); |
| 179 | } |
| 180 | |
| 181 | u32 |
| 182 | ip4_mfib_table_get_index_for_sw_if_index (u32 sw_if_index) |
| 183 | { |
| 184 | if (sw_if_index >= vec_len(ip4_main.mfib_index_by_sw_if_index)) |
| 185 | { |
| 186 | /* |
| 187 | * This is the case for interfaces that are not yet mapped to |
| 188 | * a IP table |
| 189 | */ |
| 190 | return (~0); |
| 191 | } |
| 192 | return (ip4_main.mfib_index_by_sw_if_index[sw_if_index]); |
| 193 | } |
| 194 | |
| 195 | #define IPV4_MFIB_GRP_LEN(_len)\ |
| 196 | (_len > 32 ? 32 : _len) |
| 197 | |
| 198 | #define IP4_MFIB_MK_KEY(_grp, _src, _len, _key) \ |
| 199 | { \ |
| 200 | _key = ((u64)(_grp->data_u32 & \ |
| 201 | ip4_main.fib_masks[IPV4_MFIB_GRP_LEN(_len)])) << 32; \ |
| 202 | _key |= _src->data_u32; \ |
| 203 | } |
| 204 | #define IP4_MFIB_MK_GRP_KEY(_grp, _len, _key) \ |
| 205 | { \ |
| 206 | _key = ((u64)(_grp->data_u32 & \ |
| 207 | ip4_main.fib_masks[IPV4_MFIB_GRP_LEN(_len)])) << 32; \ |
| 208 | } |
| 209 | |
| 210 | /* |
| 211 | * ip4_fib_table_lookup_exact_match |
| 212 | * |
| 213 | * Exact match prefix lookup |
| 214 | */ |
| 215 | fib_node_index_t |
| 216 | ip4_mfib_table_lookup_exact_match (const ip4_mfib_t *mfib, |
| 217 | const ip4_address_t *grp, |
| 218 | const ip4_address_t *src, |
| 219 | u32 len) |
| 220 | { |
| 221 | uword * hash, * result; |
| 222 | u64 key; |
| 223 | |
| 224 | hash = mfib->fib_entry_by_dst_address[len]; |
| 225 | IP4_MFIB_MK_KEY(grp, src, len, key); |
| 226 | |
| 227 | result = hash_get(hash, key); |
| 228 | |
| 229 | if (NULL != result) { |
| 230 | return (result[0]); |
| 231 | } |
| 232 | return (FIB_NODE_INDEX_INVALID); |
| 233 | } |
| 234 | |
| 235 | /* |
| 236 | * ip4_fib_table_lookup |
| 237 | * |
| 238 | * Longest prefix match |
| 239 | */ |
| 240 | fib_node_index_t |
| 241 | ip4_mfib_table_lookup (const ip4_mfib_t *mfib, |
| 242 | const ip4_address_t *src, |
| 243 | const ip4_address_t *grp, |
| 244 | u32 len) |
| 245 | { |
| 246 | uword * hash, * result; |
| 247 | i32 mask_len; |
| 248 | u64 key; |
| 249 | |
| 250 | mask_len = len; |
| 251 | |
| 252 | if (PREDICT_TRUE(64 == mask_len)) |
| 253 | { |
| 254 | hash = mfib->fib_entry_by_dst_address[mask_len]; |
| 255 | IP4_MFIB_MK_KEY(grp, src, mask_len, key); |
| 256 | |
| 257 | result = hash_get (hash, key); |
| 258 | |
| 259 | if (NULL != result) { |
| 260 | return (result[0]); |
| 261 | } |
| 262 | } |
| 263 | |
Neale Ranns | ae80983 | 2018-11-23 09:00:27 -0800 | [diff] [blame] | 264 | for (mask_len = (len == 64 ? 32 : len); mask_len >= 0; mask_len--) |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 265 | { |
| 266 | hash = mfib->fib_entry_by_dst_address[mask_len]; |
| 267 | IP4_MFIB_MK_GRP_KEY(grp, mask_len, key); |
| 268 | |
| 269 | result = hash_get (hash, key); |
| 270 | |
| 271 | if (NULL != result) { |
| 272 | return (result[0]); |
| 273 | } |
| 274 | } |
| 275 | return (FIB_NODE_INDEX_INVALID); |
| 276 | } |
| 277 | |
Neale Ranns | 9e829a8 | 2018-12-17 05:50:32 -0800 | [diff] [blame] | 278 | fib_node_index_t |
| 279 | ip4_mfib_table_get_less_specific (const ip4_mfib_t *mfib, |
| 280 | const ip4_address_t *src, |
| 281 | const ip4_address_t *grp, |
| 282 | u32 len) |
| 283 | { |
| 284 | u32 mask_len; |
| 285 | |
| 286 | /* |
| 287 | * in the absence of a tree structure for the table that allows for an O(1) |
| 288 | * parent get, a cheeky way to find the cover is to LPM for the prefix with |
| 289 | * mask-1. |
| 290 | * there should always be a cover, though it may be the default route. the |
| 291 | * default route's cover is the default route. |
| 292 | */ |
| 293 | if (len == 64) |
| 294 | { |
| 295 | /* go from (S,G) to (*,G*) */ |
| 296 | mask_len = 32; |
| 297 | } |
| 298 | else if (len != 0) |
| 299 | { |
| 300 | mask_len = len - 1; |
| 301 | } |
| 302 | else |
| 303 | { |
| 304 | mask_len = len; |
| 305 | } |
| 306 | |
| 307 | return (ip4_mfib_table_lookup(mfib, src, grp, mask_len)); |
| 308 | } |
| 309 | |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 310 | void |
| 311 | ip4_mfib_table_entry_insert (ip4_mfib_t *mfib, |
| 312 | const ip4_address_t *grp, |
| 313 | const ip4_address_t *src, |
| 314 | u32 len, |
| 315 | fib_node_index_t fib_entry_index) |
| 316 | { |
| 317 | uword * hash, * result; |
| 318 | u64 key; |
| 319 | |
| 320 | IP4_MFIB_MK_KEY(grp, src, len, key); |
| 321 | hash = mfib->fib_entry_by_dst_address[len]; |
| 322 | result = hash_get (hash, key); |
| 323 | |
| 324 | if (NULL == result) { |
| 325 | /* |
| 326 | * adding a new entry |
| 327 | */ |
| 328 | if (NULL == hash) { |
| 329 | hash = hash_create (32 /* elts */, sizeof (uword)); |
| 330 | hash_set_flags (hash, HASH_FLAG_NO_AUTO_SHRINK); |
| 331 | } |
| 332 | hash = hash_set(hash, key, fib_entry_index); |
| 333 | mfib->fib_entry_by_dst_address[len] = hash; |
| 334 | } |
| 335 | else |
| 336 | { |
| 337 | ASSERT(0); |
| 338 | } |
| 339 | } |
| 340 | |
| 341 | void |
| 342 | ip4_mfib_table_entry_remove (ip4_mfib_t *mfib, |
| 343 | const ip4_address_t *grp, |
| 344 | const ip4_address_t *src, |
| 345 | u32 len) |
| 346 | { |
| 347 | uword * hash, * result; |
| 348 | u64 key; |
| 349 | |
| 350 | IP4_MFIB_MK_KEY(grp, src, len, key); |
| 351 | hash = mfib->fib_entry_by_dst_address[len]; |
| 352 | result = hash_get (hash, key); |
| 353 | |
| 354 | if (NULL == result) |
| 355 | { |
| 356 | /* |
Jim Thompson | f324dec | 2019-04-08 03:22:21 -0500 | [diff] [blame] | 357 | * removing a non-existent entry. i'll allow it. |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 358 | */ |
| 359 | } |
| 360 | else |
| 361 | { |
| 362 | hash_unset(hash, key); |
| 363 | } |
| 364 | |
| 365 | mfib->fib_entry_by_dst_address[len] = hash; |
| 366 | } |
| 367 | |
Neale Ranns | 5a8123b | 2017-01-26 01:18:23 -0800 | [diff] [blame] | 368 | void |
| 369 | ip4_mfib_table_walk (ip4_mfib_t *mfib, |
| 370 | mfib_table_walk_fn_t fn, |
| 371 | void *ctx) |
| 372 | { |
| 373 | int i; |
| 374 | |
| 375 | for (i = 0; i < ARRAY_LEN (mfib->fib_entry_by_dst_address); i++) |
| 376 | { |
| 377 | uword * hash = mfib->fib_entry_by_dst_address[i]; |
| 378 | |
| 379 | if (NULL != hash) |
| 380 | { |
| 381 | hash_pair_t * p; |
| 382 | |
| 383 | hash_foreach_pair (p, hash, |
| 384 | ({ |
| 385 | fn(p->value[0], ctx); |
| 386 | })); |
| 387 | } |
| 388 | } |
| 389 | } |
| 390 | |
Neale Ranns | c87aafa | 2017-11-29 00:59:31 -0800 | [diff] [blame] | 391 | u8 * |
| 392 | format_ip4_mfib_table_memory (u8 * s, va_list * args) |
| 393 | { |
| 394 | mfib_table_t *mfib_table; |
| 395 | u64 total_memory; |
| 396 | |
| 397 | total_memory = 0; |
| 398 | |
Damjan Marion | b2c31b6 | 2020-12-13 21:47:40 +0100 | [diff] [blame^] | 399 | pool_foreach (mfib_table, ip4_main.mfibs) |
| 400 | { |
Neale Ranns | c87aafa | 2017-11-29 00:59:31 -0800 | [diff] [blame] | 401 | ip4_mfib_t *mfib = &mfib_table->v4; |
| 402 | uword mfib_size; |
| 403 | int i; |
| 404 | |
| 405 | mfib_size = 0; |
| 406 | |
| 407 | for (i = 0; i < ARRAY_LEN (mfib->fib_entry_by_dst_address); i++) |
| 408 | { |
| 409 | uword * hash = mfib->fib_entry_by_dst_address[i]; |
| 410 | |
| 411 | if (NULL != hash) |
| 412 | { |
| 413 | mfib_size += hash_bytes(hash); |
| 414 | } |
| 415 | } |
| 416 | |
| 417 | total_memory += mfib_size; |
Damjan Marion | b2c31b6 | 2020-12-13 21:47:40 +0100 | [diff] [blame^] | 418 | } |
Neale Ranns | c87aafa | 2017-11-29 00:59:31 -0800 | [diff] [blame] | 419 | |
Neale Ranns | 05cac30 | 2019-05-28 11:09:40 +0000 | [diff] [blame] | 420 | s = format(s, "%=30s %=6d %=12ld\n", |
Neale Ranns | c87aafa | 2017-11-29 00:59:31 -0800 | [diff] [blame] | 421 | "IPv4 multicast", |
| 422 | pool_elts(ip4_main.mfibs), total_memory); |
| 423 | |
| 424 | return (s); |
| 425 | } |
| 426 | |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 427 | static void |
| 428 | ip4_mfib_table_show_all (ip4_mfib_t *mfib, |
| 429 | vlib_main_t * vm) |
| 430 | { |
| 431 | fib_node_index_t *mfib_entry_indicies; |
| 432 | fib_node_index_t *mfib_entry_index; |
| 433 | int i; |
| 434 | |
| 435 | mfib_entry_indicies = NULL; |
| 436 | |
| 437 | for (i = 0; i < ARRAY_LEN (mfib->fib_entry_by_dst_address); i++) |
| 438 | { |
| 439 | uword * hash = mfib->fib_entry_by_dst_address[i]; |
| 440 | |
| 441 | if (NULL != hash) |
| 442 | { |
| 443 | hash_pair_t * p; |
| 444 | |
| 445 | hash_foreach_pair (p, hash, |
| 446 | ({ |
| 447 | vec_add1(mfib_entry_indicies, p->value[0]); |
| 448 | })); |
| 449 | } |
| 450 | } |
| 451 | |
| 452 | vec_sort_with_function(mfib_entry_indicies, mfib_entry_cmp_for_sort); |
| 453 | |
| 454 | vec_foreach(mfib_entry_index, mfib_entry_indicies) |
| 455 | { |
| 456 | vlib_cli_output(vm, "%U", |
| 457 | format_mfib_entry, |
| 458 | *mfib_entry_index, |
| 459 | MFIB_ENTRY_FORMAT_BRIEF); |
| 460 | } |
| 461 | |
| 462 | vec_free(mfib_entry_indicies); |
| 463 | } |
| 464 | |
| 465 | static void |
| 466 | ip4_mfib_table_show_one (ip4_mfib_t *mfib, |
| 467 | vlib_main_t * vm, |
| 468 | ip4_address_t *src, |
| 469 | ip4_address_t *grp, |
| 470 | u32 mask_len) |
| 471 | { |
| 472 | vlib_cli_output(vm, "%U", |
| 473 | format_mfib_entry, |
| 474 | ip4_mfib_table_lookup(mfib, src, grp, mask_len), |
| 475 | MFIB_ENTRY_FORMAT_DETAIL); |
| 476 | } |
| 477 | |
| 478 | static clib_error_t * |
| 479 | ip4_show_mfib (vlib_main_t * vm, |
| 480 | unformat_input_t * input, |
| 481 | vlib_cli_command_t * cmd) |
| 482 | { |
| 483 | ip4_main_t * im4 = &ip4_main; |
| 484 | mfib_table_t *mfib_table; |
Neale Ranns | c87aafa | 2017-11-29 00:59:31 -0800 | [diff] [blame] | 485 | int verbose, matching, memory; |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 486 | ip4_address_t grp, src = {{0}}; |
| 487 | u32 mask = 32; |
Neale Ranns | c87aafa | 2017-11-29 00:59:31 -0800 | [diff] [blame] | 488 | u64 total_hash_memory; |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 489 | int i, table_id = -1, fib_index = ~0; |
| 490 | |
| 491 | verbose = 1; |
Neale Ranns | c87aafa | 2017-11-29 00:59:31 -0800 | [diff] [blame] | 492 | memory = matching = 0; |
| 493 | total_hash_memory = 0; |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 494 | |
| 495 | while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) |
| 496 | { |
| 497 | if (unformat (input, "brief") || unformat (input, "summary") |
| 498 | || unformat (input, "sum")) |
| 499 | verbose = 0; |
Neale Ranns | c87aafa | 2017-11-29 00:59:31 -0800 | [diff] [blame] | 500 | else if (unformat (input, "mem") || unformat (input, "memory")) |
| 501 | memory = 1; |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 502 | else if (unformat (input, "%U %U", |
| 503 | unformat_ip4_address, &src, |
| 504 | unformat_ip4_address, &grp)) |
| 505 | { |
| 506 | matching = 1; |
| 507 | mask = 64; |
| 508 | } |
Neale Ranns | c7409dc | 2017-05-19 02:54:32 -0700 | [diff] [blame] | 509 | else if (unformat (input, "%U/%d", unformat_ip4_address, &grp, &mask)) |
| 510 | { |
Dave Barach | b7b9299 | 2018-10-17 10:38:51 -0400 | [diff] [blame] | 511 | clib_memset(&src, 0, sizeof(src)); |
Neale Ranns | c7409dc | 2017-05-19 02:54:32 -0700 | [diff] [blame] | 512 | matching = 1; |
| 513 | } |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 514 | else if (unformat (input, "%U", unformat_ip4_address, &grp)) |
| 515 | { |
Dave Barach | b7b9299 | 2018-10-17 10:38:51 -0400 | [diff] [blame] | 516 | clib_memset(&src, 0, sizeof(src)); |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 517 | matching = 1; |
| 518 | mask = 32; |
| 519 | } |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 520 | else if (unformat (input, "table %d", &table_id)) |
| 521 | ; |
| 522 | else if (unformat (input, "index %d", &fib_index)) |
| 523 | ; |
| 524 | else |
| 525 | break; |
| 526 | } |
| 527 | |
Damjan Marion | b2c31b6 | 2020-12-13 21:47:40 +0100 | [diff] [blame^] | 528 | pool_foreach (mfib_table, im4->mfibs) |
| 529 | { |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 530 | ip4_mfib_t *mfib = &mfib_table->v4; |
| 531 | |
| 532 | if (table_id >= 0 && table_id != (int)mfib->table_id) |
| 533 | continue; |
| 534 | if (fib_index != ~0 && fib_index != (int)mfib->index) |
| 535 | continue; |
| 536 | |
Neale Ranns | c87aafa | 2017-11-29 00:59:31 -0800 | [diff] [blame] | 537 | if (memory) |
| 538 | { |
| 539 | uword hash_size; |
| 540 | |
| 541 | hash_size = 0; |
| 542 | |
| 543 | for (i = 0; i < ARRAY_LEN (mfib->fib_entry_by_dst_address); i++) |
| 544 | { |
| 545 | uword * hash = mfib->fib_entry_by_dst_address[i]; |
| 546 | if (NULL != hash) |
| 547 | { |
| 548 | hash_size += hash_bytes(hash); |
| 549 | } |
| 550 | } |
| 551 | if (verbose) |
| 552 | vlib_cli_output (vm, "%U hash:%d", |
| 553 | format_mfib_table_name, mfib->index, |
| 554 | FIB_PROTOCOL_IP4, |
| 555 | hash_size); |
| 556 | total_hash_memory += hash_size; |
| 557 | continue; |
| 558 | } |
| 559 | |
Neale Ranns | 9db6ada | 2019-11-08 12:42:31 +0000 | [diff] [blame] | 560 | vlib_cli_output (vm, "%U, fib_index:%d flags:%U", |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 561 | format_mfib_table_name, mfib->index, FIB_PROTOCOL_IP4, |
Neale Ranns | 9db6ada | 2019-11-08 12:42:31 +0000 | [diff] [blame] | 562 | mfib->index, |
| 563 | format_mfib_table_flags, mfib_table->mft_flags); |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 564 | |
| 565 | /* Show summary? */ |
| 566 | if (! verbose) |
| 567 | { |
| 568 | vlib_cli_output (vm, "%=20s%=16s", "Prefix length", "Count"); |
| 569 | for (i = 0; i < ARRAY_LEN (mfib->fib_entry_by_dst_address); i++) |
| 570 | { |
| 571 | uword * hash = mfib->fib_entry_by_dst_address[i]; |
| 572 | uword n_elts = hash_elts (hash); |
| 573 | if (n_elts > 0) |
| 574 | vlib_cli_output (vm, "%20d%16d", i, n_elts); |
| 575 | } |
| 576 | continue; |
| 577 | } |
| 578 | |
| 579 | if (!matching) |
| 580 | { |
| 581 | ip4_mfib_table_show_all(mfib, vm); |
| 582 | } |
| 583 | else |
| 584 | { |
| 585 | ip4_mfib_table_show_one(mfib, vm, &src, &grp, mask); |
| 586 | } |
Damjan Marion | b2c31b6 | 2020-12-13 21:47:40 +0100 | [diff] [blame^] | 587 | } |
Neale Ranns | c87aafa | 2017-11-29 00:59:31 -0800 | [diff] [blame] | 588 | if (memory) |
| 589 | vlib_cli_output (vm, "totals: hash:%ld", total_hash_memory); |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 590 | |
| 591 | return 0; |
| 592 | } |
| 593 | |
| 594 | /*? |
| 595 | * This command displays the IPv4 MulticasrFIB Tables (VRF Tables) and |
| 596 | * the route entries for each table. |
| 597 | * |
| 598 | * @note This command will run for a long time when the FIB tables are |
| 599 | * comprised of millions of entries. For those senarios, consider displaying |
| 600 | * a single table or summary mode. |
| 601 | * |
| 602 | * @cliexpar |
| 603 | * Example of how to display all the IPv4 Multicast FIB tables: |
| 604 | * @cliexstart{show ip fib} |
| 605 | * ipv4-VRF:0, fib_index 0 |
| 606 | * (*, 0.0.0.0/0): flags:D, |
| 607 | * Interfaces: |
| 608 | * multicast-ip4-chain |
| 609 | * [@1]: dpo-drop ip4 |
| 610 | * (*, 232.1.1.1/32): |
| 611 | * Interfaces: |
| 612 | * test-eth1: Forward, |
| 613 | * test-eth2: Forward, |
| 614 | * test-eth0: Accept, |
| 615 | * multicast-ip4-chain |
| 616 | * [@2]: dpo-replicate: [index:1 buckets:2 to:[0:0]] |
| 617 | * [0] [@1]: ipv4-mcast: test-eth1: IP4: d0:d1:d2:d3:d4:01 -> 01:00:05:00:00:00 |
| 618 | * [1] [@1]: ipv4-mcast: test-eth2: IP4: d0:d1:d2:d3:d4:02 -> 01:00:05:00:00:00 |
| 619 | * |
| 620 | * @cliexend |
| 621 | * Example of how to display a summary of all IPv4 FIB tables: |
| 622 | * @cliexstart{show ip fib summary} |
| 623 | * ipv4-VRF:0, fib_index 0, flow hash: src dst sport dport proto |
| 624 | * Prefix length Count |
| 625 | * 0 1 |
| 626 | * 8 2 |
| 627 | * 32 4 |
| 628 | * ipv4-VRF:7, fib_index 1, flow hash: src dst sport dport proto |
| 629 | * Prefix length Count |
| 630 | * 0 1 |
| 631 | * 8 2 |
| 632 | * 24 2 |
| 633 | * 32 4 |
| 634 | * @cliexend |
| 635 | ?*/ |
| 636 | /* *INDENT-OFF* */ |
Neale Ranns | c756c1c | 2017-02-08 09:11:57 -0800 | [diff] [blame] | 637 | VLIB_CLI_COMMAND (ip4_show_mfib_command, static) = { |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 638 | .path = "show ip mfib", |
Neale Ranns | c756c1c | 2017-02-08 09:11:57 -0800 | [diff] [blame] | 639 | .short_help = "show ip mfib [summary] [table <table-id>] [index <fib-id>] [<grp-addr>[/<mask>]] [<grp-addr>] [<src-addr> <grp-addr>]", |
Neale Ranns | 32e1c01 | 2016-11-22 17:07:28 +0000 | [diff] [blame] | 640 | .function = ip4_show_mfib, |
| 641 | }; |
| 642 | /* *INDENT-ON* */ |