Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +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/lisp-gpe/lisp_gpe_fwd_entry.h> |
| 17 | #include <vnet/lisp-gpe/lisp_gpe_adjacency.h> |
| 18 | #include <vnet/lisp-gpe/lisp_gpe_tenant.h> |
| 19 | #include <vnet/lisp-cp/lisp_cp_dpo.h> |
| 20 | #include <vnet/fib/fib_table.h> |
| 21 | #include <vnet/fib/fib_entry.h> |
| 22 | #include <vnet/fib/fib_path_list.h> |
| 23 | #include <vnet/fib/ip6_fib.h> |
| 24 | #include <vnet/fib/ip4_fib.h> |
| 25 | #include <vnet/dpo/drop_dpo.h> |
| 26 | #include <vnet/dpo/lookup_dpo.h> |
| 27 | #include <vnet/dpo/load_balance.h> |
| 28 | #include <vnet/adj/adj_midchain.h> |
| 29 | |
| 30 | /** |
| 31 | * @brief Add route to IP4 or IP6 Destination FIB. |
| 32 | * |
| 33 | * Add a route to the destination FIB that results in the lookup |
| 34 | * in the SRC FIB. The SRC FIB is created is it does not yet exist. |
| 35 | * |
| 36 | * @param[in] dst_table_id Destination FIB Table-ID |
| 37 | * @param[in] dst_prefix Destination IP prefix. |
| 38 | * |
| 39 | * @return src_fib_index The index/ID of the SRC FIB created. |
| 40 | */ |
| 41 | static u32 |
| 42 | ip_dst_fib_add_route (u32 dst_fib_index, const ip_prefix_t * dst_prefix) |
| 43 | { |
| 44 | fib_node_index_t src_fib_index; |
| 45 | fib_prefix_t dst_fib_prefix; |
| 46 | fib_node_index_t dst_fei; |
| 47 | |
| 48 | ASSERT (NULL != dst_prefix); |
| 49 | |
| 50 | ip_prefix_to_fib_prefix (dst_prefix, &dst_fib_prefix); |
| 51 | |
| 52 | /* |
| 53 | * lookup the destination prefix in the VRF table and retrieve the |
| 54 | * LISP associated data |
| 55 | */ |
| 56 | dst_fei = fib_table_lookup_exact_match (dst_fib_index, &dst_fib_prefix); |
| 57 | |
| 58 | /* |
| 59 | * If the FIB entry is not present, or not LISP sourced, add it |
| 60 | */ |
| 61 | if (dst_fei == FIB_NODE_INDEX_INVALID || |
| 62 | NULL == fib_entry_get_source_data (dst_fei, FIB_SOURCE_LISP)) |
| 63 | { |
Neale Ranns | 948e00f | 2016-10-20 13:39:34 +0100 | [diff] [blame] | 64 | dpo_id_t src_lkup_dpo = DPO_INVALID; |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 65 | |
| 66 | /* create a new src FIB. */ |
| 67 | src_fib_index = |
| 68 | fib_table_create_and_lock (dst_fib_prefix.fp_proto, |
Neale Ranns | 1500254 | 2017-09-10 04:39:11 -0700 | [diff] [blame] | 69 | FIB_SOURCE_LISP, |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 70 | "LISP-src for [%d,%U]", |
| 71 | dst_fib_index, |
| 72 | format_fib_prefix, &dst_fib_prefix); |
Filip Tehlar | d5fcc46 | 2016-10-17 16:20:18 +0200 | [diff] [blame] | 73 | /* |
| 74 | * add src fib default route |
| 75 | */ |
| 76 | fib_prefix_t prefix = { |
| 77 | .fp_proto = dst_fib_prefix.fp_proto, |
| 78 | }; |
| 79 | fib_table_entry_special_dpo_add (src_fib_index, &prefix, |
| 80 | FIB_SOURCE_LISP, |
| 81 | FIB_ENTRY_FLAG_EXCLUSIVE, |
| 82 | lisp_cp_dpo_get (fib_proto_to_dpo |
| 83 | (dst_fib_prefix.fp_proto))); |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 84 | /* |
| 85 | * create a data-path object to perform the source address lookup |
| 86 | * in the SRC FIB |
| 87 | */ |
| 88 | lookup_dpo_add_or_lock_w_fib_index (src_fib_index, |
| 89 | (ip_prefix_version (dst_prefix) == |
Neale Ranns | ea93e48 | 2019-11-12 17:16:47 +0000 | [diff] [blame] | 90 | AF_IP6 ? DPO_PROTO_IP6 : |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 91 | DPO_PROTO_IP4), |
Neale Ranns | 0f26c5a | 2017-03-01 15:12:11 -0800 | [diff] [blame] | 92 | LOOKUP_UNICAST, |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 93 | LOOKUP_INPUT_SRC_ADDR, |
| 94 | LOOKUP_TABLE_FROM_CONFIG, |
| 95 | &src_lkup_dpo); |
| 96 | |
| 97 | /* |
| 98 | * add the entry to the destination FIB that uses the lookup DPO |
| 99 | */ |
| 100 | dst_fei = fib_table_entry_special_dpo_add (dst_fib_index, |
| 101 | &dst_fib_prefix, |
| 102 | FIB_SOURCE_LISP, |
| 103 | FIB_ENTRY_FLAG_EXCLUSIVE, |
| 104 | &src_lkup_dpo); |
| 105 | |
| 106 | /* |
| 107 | * the DPO is locked by the FIB entry, and we have no further |
| 108 | * need for it. |
| 109 | */ |
| 110 | dpo_unlock (&src_lkup_dpo); |
| 111 | |
| 112 | /* |
| 113 | * save the SRC FIB index on the entry so we can retrieve it for |
| 114 | * subsequent routes. |
| 115 | */ |
| 116 | fib_entry_set_source_data (dst_fei, FIB_SOURCE_LISP, &src_fib_index); |
| 117 | } |
| 118 | else |
| 119 | { |
| 120 | /* |
| 121 | * destination FIB entry already present |
| 122 | */ |
| 123 | src_fib_index = *(u32 *) fib_entry_get_source_data (dst_fei, |
| 124 | FIB_SOURCE_LISP); |
| 125 | } |
| 126 | |
| 127 | return (src_fib_index); |
| 128 | } |
| 129 | |
| 130 | /** |
| 131 | * @brief Del route to IP4 or IP6 SD FIB. |
| 132 | * |
| 133 | * Remove routes from both destination and source FIBs. |
| 134 | * |
| 135 | * @param[in] src_fib_index The index/ID of the SRC FIB |
| 136 | * @param[in] src_prefix Source IP prefix. |
| 137 | * @param[in] dst_fib_index The index/ID of the DST FIB |
| 138 | * @param[in] dst_prefix Destination IP prefix. |
| 139 | */ |
| 140 | static void |
| 141 | ip_src_dst_fib_del_route (u32 src_fib_index, |
| 142 | const ip_prefix_t * src_prefix, |
| 143 | u32 dst_fib_index, const ip_prefix_t * dst_prefix) |
| 144 | { |
| 145 | fib_prefix_t dst_fib_prefix, src_fib_prefix; |
Florin Coras | 8479440 | 2016-11-29 17:14:06 -0800 | [diff] [blame] | 146 | u8 have_default = 0; |
| 147 | u32 n_entries; |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 148 | |
| 149 | ASSERT (NULL != dst_prefix); |
| 150 | ASSERT (NULL != src_prefix); |
| 151 | |
| 152 | ip_prefix_to_fib_prefix (dst_prefix, &dst_fib_prefix); |
| 153 | ip_prefix_to_fib_prefix (src_prefix, &src_fib_prefix); |
| 154 | |
| 155 | fib_table_entry_delete (src_fib_index, &src_fib_prefix, FIB_SOURCE_LISP); |
| 156 | |
Florin Coras | 8479440 | 2016-11-29 17:14:06 -0800 | [diff] [blame] | 157 | /* check if only default left or empty */ |
| 158 | fib_prefix_t default_pref = { |
| 159 | .fp_proto = dst_fib_prefix.fp_proto |
| 160 | }; |
| 161 | |
| 162 | if (fib_table_lookup_exact_match (src_fib_index, |
| 163 | &default_pref) != FIB_NODE_INDEX_INVALID) |
| 164 | have_default = 1; |
| 165 | |
| 166 | n_entries = fib_table_get_num_entries (src_fib_index, |
| 167 | src_fib_prefix.fp_proto, |
| 168 | FIB_SOURCE_LISP); |
| 169 | if (n_entries == 0 || (have_default && n_entries == 1)) |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 170 | { |
| 171 | /* |
Florin Coras | feeebfe | 2016-11-27 22:33:01 -0800 | [diff] [blame] | 172 | * remove src FIB default route |
| 173 | */ |
Florin Coras | 8479440 | 2016-11-29 17:14:06 -0800 | [diff] [blame] | 174 | if (have_default) |
| 175 | fib_table_entry_special_remove (src_fib_index, &default_pref, |
| 176 | FIB_SOURCE_LISP); |
Florin Coras | feeebfe | 2016-11-27 22:33:01 -0800 | [diff] [blame] | 177 | |
| 178 | /* |
| 179 | * there's nothing left now, unlock the source FIB and the |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 180 | * destination route |
| 181 | */ |
| 182 | fib_table_entry_special_remove (dst_fib_index, |
| 183 | &dst_fib_prefix, FIB_SOURCE_LISP); |
Neale Ranns | 1500254 | 2017-09-10 04:39:11 -0700 | [diff] [blame] | 184 | fib_table_unlock (src_fib_index, src_fib_prefix.fp_proto, |
| 185 | FIB_SOURCE_LISP); |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 186 | } |
| 187 | } |
| 188 | |
| 189 | /** |
| 190 | * @brief Add route to IP4 or IP6 SRC FIB. |
| 191 | * |
| 192 | * Adds a route to in the LISP SRC FIB with the result of the route |
| 193 | * being the DPO passed. |
| 194 | * |
| 195 | * @param[in] src_fib_index The index/ID of the SRC FIB |
| 196 | * @param[in] src_prefix Source IP prefix. |
| 197 | * @param[in] src_dpo The DPO the route will link to. |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 198 | * |
| 199 | * @return fib index of the inserted prefix |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 200 | */ |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 201 | static fib_node_index_t |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 202 | ip_src_fib_add_route_w_dpo (u32 src_fib_index, |
| 203 | const ip_prefix_t * src_prefix, |
| 204 | const dpo_id_t * src_dpo) |
| 205 | { |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 206 | fib_node_index_t fei = ~0; |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 207 | fib_prefix_t src_fib_prefix; |
| 208 | |
| 209 | ip_prefix_to_fib_prefix (src_prefix, &src_fib_prefix); |
| 210 | |
| 211 | /* |
| 212 | * add the entry into the source fib. |
| 213 | */ |
| 214 | fib_node_index_t src_fei; |
| 215 | |
| 216 | src_fei = fib_table_lookup_exact_match (src_fib_index, &src_fib_prefix); |
| 217 | |
| 218 | if (FIB_NODE_INDEX_INVALID == src_fei || |
| 219 | !fib_entry_is_sourced (src_fei, FIB_SOURCE_LISP)) |
| 220 | { |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 221 | fei = fib_table_entry_special_dpo_add (src_fib_index, |
| 222 | &src_fib_prefix, |
| 223 | FIB_SOURCE_LISP, |
| 224 | FIB_ENTRY_FLAG_EXCLUSIVE, |
| 225 | src_dpo); |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 226 | } |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 227 | return fei; |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 228 | } |
| 229 | |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 230 | static fib_route_path_t * |
| 231 | lisp_gpe_mk_fib_paths (const lisp_fwd_path_t * paths) |
| 232 | { |
| 233 | const lisp_gpe_adjacency_t *ladj; |
| 234 | fib_route_path_t *rpaths = NULL; |
Neale Ranns | da78f95 | 2017-05-24 09:15:43 -0700 | [diff] [blame] | 235 | fib_protocol_t fp; |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 236 | u8 best_priority; |
| 237 | u32 ii; |
| 238 | |
| 239 | vec_validate (rpaths, vec_len (paths) - 1); |
| 240 | |
| 241 | best_priority = paths[0].priority; |
| 242 | |
| 243 | vec_foreach_index (ii, paths) |
| 244 | { |
| 245 | if (paths[0].priority != best_priority) |
| 246 | break; |
| 247 | |
| 248 | ladj = lisp_gpe_adjacency_get (paths[ii].lisp_adj); |
| 249 | |
Neale Ranns | 2828721 | 2019-12-16 00:53:11 +0000 | [diff] [blame^] | 250 | fp = ip_address_to_46 (&ladj->remote_rloc, &rpaths[ii].frp_addr); |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 251 | |
Neale Ranns | da78f95 | 2017-05-24 09:15:43 -0700 | [diff] [blame] | 252 | rpaths[ii].frp_proto = fib_proto_to_dpo (fp); |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 253 | rpaths[ii].frp_sw_if_index = ladj->sw_if_index; |
| 254 | rpaths[ii].frp_weight = (paths[ii].weight ? paths[ii].weight : 1); |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 255 | } |
| 256 | |
| 257 | ASSERT (0 != vec_len (rpaths)); |
| 258 | |
| 259 | return (rpaths); |
| 260 | } |
| 261 | |
| 262 | /** |
| 263 | * @brief Add route to IP4 or IP6 SRC FIB. |
| 264 | * |
| 265 | * Adds a route to in the LISP SRC FIB for the tunnel. |
| 266 | * |
| 267 | * @param[in] src_fib_index The index/ID of the SRC FIB |
| 268 | * @param[in] src_prefix Source IP prefix. |
| 269 | * @param[in] paths The paths from which to construct the |
| 270 | * load balance |
| 271 | */ |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 272 | static fib_node_index_t |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 273 | ip_src_fib_add_route (u32 src_fib_index, |
| 274 | const ip_prefix_t * src_prefix, |
| 275 | const lisp_fwd_path_t * paths) |
| 276 | { |
| 277 | fib_prefix_t src_fib_prefix; |
| 278 | fib_route_path_t *rpaths; |
| 279 | |
| 280 | ip_prefix_to_fib_prefix (src_prefix, &src_fib_prefix); |
| 281 | |
| 282 | rpaths = lisp_gpe_mk_fib_paths (paths); |
| 283 | |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 284 | fib_node_index_t fib_entry_index = |
| 285 | fib_table_entry_update (src_fib_index, &src_fib_prefix, FIB_SOURCE_LISP, |
| 286 | FIB_ENTRY_FLAG_NONE, rpaths); |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 287 | vec_free (rpaths); |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 288 | return fib_entry_index; |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 289 | } |
| 290 | |
Florin Coras | a4e63e5 | 2017-06-07 21:50:57 -0700 | [diff] [blame] | 291 | static void |
| 292 | gpe_native_fwd_add_del_lfe (lisp_gpe_fwd_entry_t * lfe, u8 is_add) |
| 293 | { |
| 294 | lisp_gpe_main_t *lgm = vnet_lisp_gpe_get_main (); |
| 295 | u8 found = 0, ip_version; |
| 296 | u32 *lfei, new_lfei; |
| 297 | ip_version = ip_prefix_version (&lfe->key->rmt.ippref); |
| 298 | |
| 299 | new_lfei = lfe - lgm->lisp_fwd_entry_pool; |
| 300 | vec_foreach (lfei, lgm->native_fwd_lfes[ip_version]) |
| 301 | { |
| 302 | lfe = pool_elt_at_index (lgm->lisp_fwd_entry_pool, lfei[0]); |
| 303 | if (lfei[0] == new_lfei) |
| 304 | { |
| 305 | found = 1; |
| 306 | break; |
| 307 | } |
| 308 | } |
| 309 | |
| 310 | if (is_add) |
| 311 | { |
| 312 | if (!found) |
| 313 | vec_add1 (lgm->native_fwd_lfes[ip_version], new_lfei); |
| 314 | } |
| 315 | else |
| 316 | { |
| 317 | if (found) |
| 318 | vec_del1 (lgm->native_fwd_lfes[ip_version], lfei[0]); |
| 319 | } |
| 320 | } |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 321 | |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 322 | static index_t |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 323 | create_fib_entries (lisp_gpe_fwd_entry_t * lfe) |
| 324 | { |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 325 | fib_node_index_t fi; |
| 326 | fib_entry_t *fe; |
Florin Coras | a4e63e5 | 2017-06-07 21:50:57 -0700 | [diff] [blame] | 327 | lisp_gpe_main_t *lgm = vnet_lisp_gpe_get_main (); |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 328 | dpo_proto_t dproto; |
Filip Tehlar | 25ad0ea | 2017-04-04 15:26:54 +0200 | [diff] [blame] | 329 | ip_prefix_t ippref; |
Florin Coras | a4e63e5 | 2017-06-07 21:50:57 -0700 | [diff] [blame] | 330 | fib_prefix_t fib_prefix; |
| 331 | u8 ip_version = ip_prefix_version (&lfe->key->rmt.ippref); |
Neale Ranns | ea93e48 | 2019-11-12 17:16:47 +0000 | [diff] [blame] | 332 | dproto = (ip_version == AF_IP4 ? DPO_PROTO_IP4 : DPO_PROTO_IP6); |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 333 | |
Filip Tehlar | 25ad0ea | 2017-04-04 15:26:54 +0200 | [diff] [blame] | 334 | if (lfe->is_src_dst) |
| 335 | { |
| 336 | lfe->src_fib_index = ip_dst_fib_add_route (lfe->eid_fib_index, |
| 337 | &lfe->key->rmt.ippref); |
| 338 | memcpy (&ippref, &lfe->key->lcl.ippref, sizeof (ippref)); |
| 339 | } |
| 340 | else |
| 341 | { |
| 342 | lfe->src_fib_index = lfe->eid_fib_index; |
| 343 | memcpy (&ippref, &lfe->key->rmt.ippref, sizeof (ippref)); |
| 344 | } |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 345 | |
| 346 | if (LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE == lfe->type) |
| 347 | { |
Neale Ranns | 948e00f | 2016-10-20 13:39:34 +0100 | [diff] [blame] | 348 | dpo_id_t dpo = DPO_INVALID; |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 349 | |
| 350 | switch (lfe->action) |
| 351 | { |
Florin Coras | a4e63e5 | 2017-06-07 21:50:57 -0700 | [diff] [blame] | 352 | case LISP_FORWARD_NATIVE: |
| 353 | /* TODO handle route overlaps with fib and default route */ |
| 354 | if (vec_len (lgm->native_fwd_rpath[ip_version])) |
| 355 | { |
| 356 | ip_prefix_to_fib_prefix (&lfe->key->rmt.ippref, &fib_prefix); |
Florin Coras | a4393be | 2017-09-12 20:24:00 -0400 | [diff] [blame] | 357 | fi = fib_table_entry_update (lfe->eid_fib_index, &fib_prefix, |
| 358 | FIB_SOURCE_LISP, |
| 359 | FIB_ENTRY_FLAG_NONE, |
| 360 | lgm->native_fwd_rpath[ip_version]); |
Florin Coras | a4e63e5 | 2017-06-07 21:50:57 -0700 | [diff] [blame] | 361 | gpe_native_fwd_add_del_lfe (lfe, 1); |
Florin Coras | a4393be | 2017-09-12 20:24:00 -0400 | [diff] [blame] | 362 | goto done; |
Florin Coras | a4e63e5 | 2017-06-07 21:50:57 -0700 | [diff] [blame] | 363 | } |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 364 | case LISP_NO_ACTION: |
| 365 | /* TODO update timers? */ |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 366 | case LISP_SEND_MAP_REQUEST: |
| 367 | /* insert tunnel that always sends map-request */ |
| 368 | dpo_copy (&dpo, lisp_cp_dpo_get (dproto)); |
| 369 | break; |
| 370 | case LISP_DROP: |
| 371 | /* for drop fwd entries, just add route, no need to add encap tunnel */ |
| 372 | dpo_copy (&dpo, drop_dpo_get (dproto)); |
| 373 | break; |
| 374 | } |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 375 | fi = ip_src_fib_add_route_w_dpo (lfe->src_fib_index, &ippref, &dpo); |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 376 | dpo_reset (&dpo); |
| 377 | } |
| 378 | else |
| 379 | { |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 380 | fi = ip_src_fib_add_route (lfe->src_fib_index, &ippref, lfe->paths); |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 381 | } |
Florin Coras | a4393be | 2017-09-12 20:24:00 -0400 | [diff] [blame] | 382 | done: |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 383 | fe = fib_entry_get (fi); |
| 384 | return fe->fe_lb.dpoi_index; |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 385 | } |
| 386 | |
| 387 | static void |
| 388 | delete_fib_entries (lisp_gpe_fwd_entry_t * lfe) |
| 389 | { |
Filip Tehlar | ed6b52b | 2017-03-22 09:02:33 +0100 | [diff] [blame] | 390 | fib_prefix_t dst_fib_prefix; |
| 391 | |
| 392 | if (lfe->is_src_dst) |
| 393 | ip_src_dst_fib_del_route (lfe->src_fib_index, |
| 394 | &lfe->key->lcl.ippref, |
| 395 | lfe->eid_fib_index, &lfe->key->rmt.ippref); |
| 396 | else |
| 397 | { |
| 398 | ip_prefix_to_fib_prefix (&lfe->key->rmt.ippref, &dst_fib_prefix); |
| 399 | fib_table_entry_delete (lfe->src_fib_index, &dst_fib_prefix, |
| 400 | FIB_SOURCE_LISP); |
Florin Coras | a4e63e5 | 2017-06-07 21:50:57 -0700 | [diff] [blame] | 401 | gpe_native_fwd_add_del_lfe (lfe, 0); |
Filip Tehlar | ed6b52b | 2017-03-22 09:02:33 +0100 | [diff] [blame] | 402 | } |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 403 | } |
| 404 | |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 405 | static lisp_gpe_fwd_entry_t * |
| 406 | find_fwd_entry (lisp_gpe_main_t * lgm, |
| 407 | vnet_lisp_gpe_add_del_fwd_entry_args_t * a, |
| 408 | lisp_gpe_fwd_entry_key_t * key) |
| 409 | { |
| 410 | uword *p; |
| 411 | |
Dave Barach | b7b9299 | 2018-10-17 10:38:51 -0400 | [diff] [blame] | 412 | clib_memset (key, 0, sizeof (*key)); |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 413 | |
| 414 | if (GID_ADDR_IP_PREFIX == gid_address_type (&a->rmt_eid)) |
| 415 | { |
| 416 | /* |
| 417 | * the ip version of the source is not set to ip6 when the |
| 418 | * source is all zeros. force it. |
| 419 | */ |
| 420 | ip_prefix_version (&gid_address_ippref (&a->lcl_eid)) = |
| 421 | ip_prefix_version (&gid_address_ippref (&a->rmt_eid)); |
| 422 | } |
| 423 | |
| 424 | gid_to_dp_address (&a->rmt_eid, &key->rmt); |
| 425 | gid_to_dp_address (&a->lcl_eid, &key->lcl); |
| 426 | key->vni = a->vni; |
| 427 | |
| 428 | p = hash_get_mem (lgm->lisp_gpe_fwd_entries, key); |
| 429 | |
| 430 | if (NULL != p) |
| 431 | { |
| 432 | return (pool_elt_at_index (lgm->lisp_fwd_entry_pool, p[0])); |
| 433 | } |
| 434 | return (NULL); |
| 435 | } |
| 436 | |
| 437 | static int |
| 438 | lisp_gpe_fwd_entry_path_sort (void *a1, void *a2) |
| 439 | { |
| 440 | lisp_fwd_path_t *p1 = a1, *p2 = a2; |
| 441 | |
| 442 | return (p1->priority - p2->priority); |
| 443 | } |
| 444 | |
| 445 | static void |
| 446 | lisp_gpe_fwd_entry_mk_paths (lisp_gpe_fwd_entry_t * lfe, |
| 447 | vnet_lisp_gpe_add_del_fwd_entry_args_t * a) |
| 448 | { |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 449 | lisp_fwd_path_t *path; |
| 450 | u32 index; |
| 451 | |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 452 | vec_validate (lfe->paths, vec_len (a->locator_pairs) - 1); |
| 453 | |
| 454 | vec_foreach_index (index, a->locator_pairs) |
| 455 | { |
| 456 | path = &lfe->paths[index]; |
| 457 | |
| 458 | path->priority = a->locator_pairs[index].priority; |
| 459 | path->weight = a->locator_pairs[index].weight; |
| 460 | |
| 461 | path->lisp_adj = |
| 462 | lisp_gpe_adjacency_find_or_create_and_lock (&a->locator_pairs |
| 463 | [index], |
Filip Tehlar | d5fcc46 | 2016-10-17 16:20:18 +0200 | [diff] [blame] | 464 | a->dp_table, lfe->key->vni); |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 465 | } |
| 466 | vec_sort_with_function (lfe->paths, lisp_gpe_fwd_entry_path_sort); |
| 467 | } |
| 468 | |
Filip Tehlar | 2151191 | 2017-04-07 10:41:42 +0200 | [diff] [blame] | 469 | void |
| 470 | vnet_lisp_gpe_add_fwd_counters (vnet_lisp_gpe_add_del_fwd_entry_args_t * a, |
| 471 | u32 fwd_entry_index) |
| 472 | { |
| 473 | const lisp_gpe_adjacency_t *ladj; |
| 474 | lisp_fwd_path_t *path; |
| 475 | lisp_gpe_main_t *lgm = vnet_lisp_gpe_get_main (); |
| 476 | u8 *dummy_elt; |
| 477 | lisp_gpe_fwd_entry_t *lfe; |
| 478 | lisp_gpe_fwd_entry_key_t fe_key; |
| 479 | lisp_stats_key_t key; |
| 480 | |
| 481 | lfe = find_fwd_entry (lgm, a, &fe_key); |
| 482 | |
Filip Tehlar | 761787b | 2017-06-06 15:32:52 +0200 | [diff] [blame] | 483 | if (!lfe) |
| 484 | return; |
| 485 | |
Filip Tehlar | 2151191 | 2017-04-07 10:41:42 +0200 | [diff] [blame] | 486 | if (LISP_GPE_FWD_ENTRY_TYPE_NORMAL != lfe->type) |
| 487 | return; |
| 488 | |
Dave Barach | b7b9299 | 2018-10-17 10:38:51 -0400 | [diff] [blame] | 489 | clib_memset (&key, 0, sizeof (key)); |
Filip Tehlar | 2151191 | 2017-04-07 10:41:42 +0200 | [diff] [blame] | 490 | key.fwd_entry_index = fwd_entry_index; |
| 491 | |
| 492 | vec_foreach (path, lfe->paths) |
| 493 | { |
| 494 | ladj = lisp_gpe_adjacency_get (path->lisp_adj); |
| 495 | key.tunnel_index = ladj->tunnel_index; |
| 496 | lisp_stats_key_t *key_copy = clib_mem_alloc (sizeof (*key_copy)); |
| 497 | memcpy (key_copy, &key, sizeof (*key_copy)); |
| 498 | pool_get (lgm->dummy_stats_pool, dummy_elt); |
| 499 | hash_set_mem (lgm->lisp_stats_index_by_key, key_copy, |
| 500 | dummy_elt - lgm->dummy_stats_pool); |
| 501 | |
| 502 | vlib_validate_combined_counter (&lgm->counters, |
| 503 | dummy_elt - lgm->dummy_stats_pool); |
| 504 | vlib_zero_combined_counter (&lgm->counters, |
| 505 | dummy_elt - lgm->dummy_stats_pool); |
| 506 | } |
| 507 | } |
| 508 | |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 509 | /** |
| 510 | * @brief Add/Delete LISP IP forwarding entry. |
| 511 | * |
| 512 | * creation of forwarding entries for IP LISP overlay: |
| 513 | * |
| 514 | * @param[in] lgm Reference to @ref lisp_gpe_main_t. |
| 515 | * @param[in] a Parameters for building the forwarding entry. |
| 516 | * |
| 517 | * @return 0 on success. |
| 518 | */ |
| 519 | static int |
| 520 | add_ip_fwd_entry (lisp_gpe_main_t * lgm, |
| 521 | vnet_lisp_gpe_add_del_fwd_entry_args_t * a) |
| 522 | { |
| 523 | lisp_gpe_fwd_entry_key_t key; |
| 524 | lisp_gpe_fwd_entry_t *lfe; |
| 525 | fib_protocol_t fproto; |
| 526 | |
| 527 | lfe = find_fwd_entry (lgm, a, &key); |
| 528 | |
| 529 | if (NULL != lfe) |
| 530 | /* don't support updates */ |
| 531 | return VNET_API_ERROR_INVALID_VALUE; |
| 532 | |
| 533 | pool_get (lgm->lisp_fwd_entry_pool, lfe); |
Dave Barach | b7b9299 | 2018-10-17 10:38:51 -0400 | [diff] [blame] | 534 | clib_memset (lfe, 0, sizeof (*lfe)); |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 535 | lfe->key = clib_mem_alloc (sizeof (key)); |
| 536 | memcpy (lfe->key, &key, sizeof (key)); |
| 537 | |
| 538 | hash_set_mem (lgm->lisp_gpe_fwd_entries, lfe->key, |
| 539 | lfe - lgm->lisp_fwd_entry_pool); |
Filip Tehlar | 560274d | 2017-06-05 13:40:13 +0200 | [diff] [blame] | 540 | a->fwd_entry_index = lfe - lgm->lisp_fwd_entry_pool; |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 541 | |
Neale Ranns | ea93e48 | 2019-11-12 17:16:47 +0000 | [diff] [blame] | 542 | fproto = (AF_IP4 == ip_prefix_version (&fid_addr_ippref (&lfe->key->rmt)) ? |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 543 | FIB_PROTOCOL_IP4 : FIB_PROTOCOL_IP6); |
| 544 | |
| 545 | lfe->type = (a->is_negative ? |
| 546 | LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE : |
| 547 | LISP_GPE_FWD_ENTRY_TYPE_NORMAL); |
| 548 | lfe->tenant = lisp_gpe_tenant_find_or_create (lfe->key->vni); |
| 549 | lfe->eid_table_id = a->table_id; |
| 550 | lfe->eid_fib_index = fib_table_find_or_create_and_lock (fproto, |
Neale Ranns | 1500254 | 2017-09-10 04:39:11 -0700 | [diff] [blame] | 551 | lfe->eid_table_id, |
| 552 | FIB_SOURCE_LISP); |
Filip Tehlar | ed6b52b | 2017-03-22 09:02:33 +0100 | [diff] [blame] | 553 | lfe->is_src_dst = a->is_src_dst; |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 554 | |
| 555 | if (LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE != lfe->type) |
| 556 | { |
| 557 | lisp_gpe_fwd_entry_mk_paths (lfe, a); |
| 558 | } |
Filip Tehlar | 0eb874e | 2017-05-18 14:23:32 +0200 | [diff] [blame] | 559 | else |
| 560 | { |
| 561 | lfe->action = a->action; |
| 562 | } |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 563 | |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 564 | lfe->dpoi_index = create_fib_entries (lfe); |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 565 | return (0); |
| 566 | } |
| 567 | |
| 568 | static void |
| 569 | del_ip_fwd_entry_i (lisp_gpe_main_t * lgm, lisp_gpe_fwd_entry_t * lfe) |
| 570 | { |
| 571 | lisp_fwd_path_t *path; |
| 572 | fib_protocol_t fproto; |
| 573 | |
Filip Tehlar | 612a383 | 2017-05-26 12:10:53 +0200 | [diff] [blame] | 574 | if (LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE != lfe->type) |
| 575 | { |
| 576 | vec_foreach (path, lfe->paths) |
| 577 | { |
| 578 | lisp_gpe_adjacency_unlock (path->lisp_adj); |
| 579 | } |
| 580 | } |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 581 | |
| 582 | delete_fib_entries (lfe); |
| 583 | |
Neale Ranns | ea93e48 | 2019-11-12 17:16:47 +0000 | [diff] [blame] | 584 | fproto = (AF_IP4 == ip_prefix_version (&fid_addr_ippref (&lfe->key->rmt)) ? |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 585 | FIB_PROTOCOL_IP4 : FIB_PROTOCOL_IP6); |
Neale Ranns | 1500254 | 2017-09-10 04:39:11 -0700 | [diff] [blame] | 586 | fib_table_unlock (lfe->eid_fib_index, fproto, FIB_SOURCE_LISP); |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 587 | |
| 588 | hash_unset_mem (lgm->lisp_gpe_fwd_entries, lfe->key); |
| 589 | clib_mem_free (lfe->key); |
| 590 | pool_put (lgm->lisp_fwd_entry_pool, lfe); |
| 591 | } |
| 592 | |
| 593 | /** |
| 594 | * @brief Add/Delete LISP IP forwarding entry. |
| 595 | * |
| 596 | * removal of forwarding entries for IP LISP overlay: |
| 597 | * |
| 598 | * @param[in] lgm Reference to @ref lisp_gpe_main_t. |
| 599 | * @param[in] a Parameters for building the forwarding entry. |
| 600 | * |
| 601 | * @return 0 on success. |
| 602 | */ |
| 603 | static int |
| 604 | del_ip_fwd_entry (lisp_gpe_main_t * lgm, |
| 605 | vnet_lisp_gpe_add_del_fwd_entry_args_t * a) |
| 606 | { |
| 607 | lisp_gpe_fwd_entry_key_t key; |
| 608 | lisp_gpe_fwd_entry_t *lfe; |
| 609 | |
| 610 | lfe = find_fwd_entry (lgm, a, &key); |
| 611 | |
| 612 | if (NULL == lfe) |
| 613 | /* no such entry */ |
| 614 | return VNET_API_ERROR_INVALID_VALUE; |
| 615 | |
| 616 | del_ip_fwd_entry_i (lgm, lfe); |
| 617 | |
| 618 | return (0); |
| 619 | } |
| 620 | |
| 621 | static void |
| 622 | make_mac_fib_key (BVT (clib_bihash_kv) * kv, u16 bd_index, u8 src_mac[6], |
| 623 | u8 dst_mac[6]) |
| 624 | { |
| 625 | kv->key[0] = (((u64) bd_index) << 48) | mac_to_u64 (dst_mac); |
| 626 | kv->key[1] = mac_to_u64 (src_mac); |
| 627 | kv->key[2] = 0; |
| 628 | } |
| 629 | |
| 630 | /** |
| 631 | * @brief Lookup L2 SD FIB entry |
| 632 | * |
| 633 | * Does a vni + dest + source lookup in the L2 LISP FIB. If the lookup fails |
| 634 | * it tries a second time with source set to 0 (i.e., a simple dest lookup). |
| 635 | * |
| 636 | * @param[in] lgm Reference to @ref lisp_gpe_main_t. |
| 637 | * @param[in] bd_index Bridge domain index. |
| 638 | * @param[in] src_mac Source mac address. |
| 639 | * @param[in] dst_mac Destination mac address. |
| 640 | * |
| 641 | * @return index of mapping matching the lookup key. |
| 642 | */ |
| 643 | index_t |
| 644 | lisp_l2_fib_lookup (lisp_gpe_main_t * lgm, u16 bd_index, u8 src_mac[6], |
| 645 | u8 dst_mac[6]) |
| 646 | { |
| 647 | int rv; |
| 648 | BVT (clib_bihash_kv) kv, value; |
| 649 | |
| 650 | make_mac_fib_key (&kv, bd_index, src_mac, dst_mac); |
| 651 | rv = BV (clib_bihash_search_inline_2) (&lgm->l2_fib, &kv, &value); |
| 652 | |
| 653 | /* no match, try with src 0, catch all for dst */ |
| 654 | if (rv != 0) |
| 655 | { |
| 656 | kv.key[1] = 0; |
| 657 | rv = BV (clib_bihash_search_inline_2) (&lgm->l2_fib, &kv, &value); |
| 658 | if (rv == 0) |
| 659 | return value.value; |
| 660 | } |
Filip Tehlar | d5fcc46 | 2016-10-17 16:20:18 +0200 | [diff] [blame] | 661 | else |
| 662 | return value.value; |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 663 | |
| 664 | return lisp_gpe_main.l2_lb_cp_lkup.dpoi_index; |
| 665 | } |
| 666 | |
| 667 | /** |
| 668 | * @brief Add/del L2 SD FIB entry |
| 669 | * |
| 670 | * Inserts value in L2 FIB keyed by vni + dest + source. If entry is |
| 671 | * overwritten the associated value is returned. |
| 672 | * |
| 673 | * @param[in] lgm Reference to @ref lisp_gpe_main_t. |
| 674 | * @param[in] bd_index Bridge domain index. |
| 675 | * @param[in] src_mac Source mac address. |
| 676 | * @param[in] dst_mac Destination mac address. |
| 677 | * @param[in] val Value to add. |
| 678 | * @param[in] is_add Add/del flag. |
| 679 | * |
| 680 | * @return ~0 or value of overwritten entry. |
| 681 | */ |
| 682 | static u32 |
| 683 | lisp_l2_fib_add_del_entry (u16 bd_index, u8 src_mac[6], |
| 684 | u8 dst_mac[6], const dpo_id_t * dpo, u8 is_add) |
| 685 | { |
| 686 | lisp_gpe_main_t *lgm = &lisp_gpe_main; |
| 687 | BVT (clib_bihash_kv) kv, value; |
| 688 | u32 old_val = ~0; |
| 689 | |
| 690 | make_mac_fib_key (&kv, bd_index, src_mac, dst_mac); |
| 691 | |
| 692 | if (BV (clib_bihash_search) (&lgm->l2_fib, &kv, &value) == 0) |
| 693 | old_val = value.value; |
| 694 | |
| 695 | if (!is_add) |
| 696 | BV (clib_bihash_add_del) (&lgm->l2_fib, &kv, 0 /* is_add */ ); |
| 697 | else |
| 698 | { |
| 699 | kv.value = dpo->dpoi_index; |
| 700 | BV (clib_bihash_add_del) (&lgm->l2_fib, &kv, 1 /* is_add */ ); |
| 701 | } |
| 702 | return old_val; |
| 703 | } |
| 704 | |
| 705 | #define L2_FIB_DEFAULT_HASH_NUM_BUCKETS (64 * 1024) |
| 706 | #define L2_FIB_DEFAULT_HASH_MEMORY_SIZE (32<<20) |
| 707 | |
| 708 | static void |
| 709 | l2_fib_init (lisp_gpe_main_t * lgm) |
| 710 | { |
| 711 | index_t lbi; |
| 712 | |
| 713 | BV (clib_bihash_init) (&lgm->l2_fib, "l2 fib", |
| 714 | 1 << max_log2 (L2_FIB_DEFAULT_HASH_NUM_BUCKETS), |
| 715 | L2_FIB_DEFAULT_HASH_MEMORY_SIZE); |
| 716 | |
| 717 | /* |
| 718 | * the result from a 'miss' in a L2 Table |
| 719 | */ |
| 720 | lbi = load_balance_create (1, DPO_PROTO_ETHERNET, 0); |
| 721 | load_balance_set_bucket (lbi, 0, lisp_cp_dpo_get (DPO_PROTO_ETHERNET)); |
| 722 | |
| 723 | dpo_set (&lgm->l2_lb_cp_lkup, DPO_LOAD_BALANCE, DPO_PROTO_ETHERNET, lbi); |
| 724 | } |
| 725 | |
| 726 | static void |
| 727 | del_l2_fwd_entry_i (lisp_gpe_main_t * lgm, lisp_gpe_fwd_entry_t * lfe) |
| 728 | { |
| 729 | lisp_fwd_path_t *path; |
| 730 | |
Florin Coras | 2ccf768 | 2016-10-04 18:03:49 +0300 | [diff] [blame] | 731 | if (LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE != lfe->type) |
| 732 | { |
| 733 | vec_foreach (path, lfe->paths) |
| 734 | { |
| 735 | lisp_gpe_adjacency_unlock (path->lisp_adj); |
| 736 | } |
| 737 | fib_path_list_child_remove (lfe->l2.path_list_index, |
| 738 | lfe->l2.child_index); |
| 739 | } |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 740 | |
| 741 | lisp_l2_fib_add_del_entry (lfe->l2.eid_bd_index, |
| 742 | fid_addr_mac (&lfe->key->lcl), |
| 743 | fid_addr_mac (&lfe->key->rmt), NULL, 0); |
| 744 | |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 745 | hash_unset_mem (lgm->lisp_gpe_fwd_entries, lfe->key); |
| 746 | clib_mem_free (lfe->key); |
| 747 | pool_put (lgm->lisp_fwd_entry_pool, lfe); |
| 748 | } |
| 749 | |
| 750 | /** |
| 751 | * @brief Delete LISP L2 forwarding entry. |
| 752 | * |
| 753 | * Coordinates the removal of forwarding entries for L2 LISP overlay: |
| 754 | * |
| 755 | * @param[in] lgm Reference to @ref lisp_gpe_main_t. |
| 756 | * @param[in] a Parameters for building the forwarding entry. |
| 757 | * |
| 758 | * @return 0 on success. |
| 759 | */ |
| 760 | static int |
| 761 | del_l2_fwd_entry (lisp_gpe_main_t * lgm, |
| 762 | vnet_lisp_gpe_add_del_fwd_entry_args_t * a) |
| 763 | { |
| 764 | lisp_gpe_fwd_entry_key_t key; |
| 765 | lisp_gpe_fwd_entry_t *lfe; |
| 766 | |
| 767 | lfe = find_fwd_entry (lgm, a, &key); |
| 768 | |
Florin Coras | 2ccf768 | 2016-10-04 18:03:49 +0300 | [diff] [blame] | 769 | if (NULL == lfe) |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 770 | return VNET_API_ERROR_INVALID_VALUE; |
| 771 | |
| 772 | del_l2_fwd_entry_i (lgm, lfe); |
| 773 | |
| 774 | return (0); |
| 775 | } |
| 776 | |
| 777 | /** |
Florin Coras | ce1b4c7 | 2017-01-26 14:25:34 -0800 | [diff] [blame] | 778 | * @brief Construct and insert the forwarding information used by an L2 entry |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 779 | */ |
| 780 | static void |
| 781 | lisp_gpe_l2_update_fwding (lisp_gpe_fwd_entry_t * lfe) |
| 782 | { |
| 783 | lisp_gpe_main_t *lgm = &lisp_gpe_main; |
Neale Ranns | 948e00f | 2016-10-20 13:39:34 +0100 | [diff] [blame] | 784 | dpo_id_t dpo = DPO_INVALID; |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 785 | |
| 786 | if (LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE != lfe->type) |
| 787 | { |
| 788 | fib_path_list_contribute_forwarding (lfe->l2.path_list_index, |
| 789 | FIB_FORW_CHAIN_TYPE_ETHERNET, |
Neale Ranns | 9128637 | 2017-12-05 13:24:04 -0800 | [diff] [blame] | 790 | FIB_PATH_LIST_FWD_FLAG_NONE, |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 791 | &lfe->l2.dpo); |
| 792 | dpo_copy (&dpo, &lfe->l2.dpo); |
| 793 | } |
| 794 | else |
| 795 | { |
Florin Coras | ce1b4c7 | 2017-01-26 14:25:34 -0800 | [diff] [blame] | 796 | switch (lfe->action) |
| 797 | { |
| 798 | case SEND_MAP_REQUEST: |
| 799 | dpo_copy (&dpo, &lgm->l2_lb_cp_lkup); |
| 800 | break; |
| 801 | case NO_ACTION: |
| 802 | case FORWARD_NATIVE: |
| 803 | case DROP: |
| 804 | dpo_copy (&dpo, drop_dpo_get (DPO_PROTO_ETHERNET)); |
| 805 | } |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 806 | } |
| 807 | |
| 808 | /* add entry to l2 lisp fib */ |
| 809 | lisp_l2_fib_add_del_entry (lfe->l2.eid_bd_index, |
| 810 | fid_addr_mac (&lfe->key->lcl), |
| 811 | fid_addr_mac (&lfe->key->rmt), &dpo, 1); |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 812 | lfe->dpoi_index = dpo.dpoi_index; |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 813 | |
| 814 | dpo_reset (&dpo); |
| 815 | } |
| 816 | |
| 817 | /** |
| 818 | * @brief Add LISP L2 forwarding entry. |
| 819 | * |
| 820 | * Coordinates the creation of forwarding entries for L2 LISP overlay: |
| 821 | * creates lisp-gpe tunnel and injects new entry in Source/Dest L2 FIB. |
| 822 | * |
| 823 | * @param[in] lgm Reference to @ref lisp_gpe_main_t. |
| 824 | * @param[in] a Parameters for building the forwarding entry. |
| 825 | * |
| 826 | * @return 0 on success. |
| 827 | */ |
| 828 | static int |
| 829 | add_l2_fwd_entry (lisp_gpe_main_t * lgm, |
| 830 | vnet_lisp_gpe_add_del_fwd_entry_args_t * a) |
| 831 | { |
| 832 | lisp_gpe_fwd_entry_key_t key; |
| 833 | bd_main_t *bdm = &bd_main; |
| 834 | lisp_gpe_fwd_entry_t *lfe; |
| 835 | uword *bd_indexp; |
| 836 | |
| 837 | bd_indexp = hash_get (bdm->bd_index_by_bd_id, a->bd_id); |
| 838 | if (!bd_indexp) |
| 839 | { |
| 840 | clib_warning ("bridge domain %d doesn't exist", a->bd_id); |
| 841 | return -1; |
| 842 | } |
| 843 | |
| 844 | lfe = find_fwd_entry (lgm, a, &key); |
| 845 | |
| 846 | if (NULL != lfe) |
| 847 | /* don't support updates */ |
| 848 | return VNET_API_ERROR_INVALID_VALUE; |
| 849 | |
| 850 | pool_get (lgm->lisp_fwd_entry_pool, lfe); |
Dave Barach | b7b9299 | 2018-10-17 10:38:51 -0400 | [diff] [blame] | 851 | clib_memset (lfe, 0, sizeof (*lfe)); |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 852 | lfe->key = clib_mem_alloc (sizeof (key)); |
| 853 | memcpy (lfe->key, &key, sizeof (key)); |
| 854 | |
| 855 | hash_set_mem (lgm->lisp_gpe_fwd_entries, lfe->key, |
| 856 | lfe - lgm->lisp_fwd_entry_pool); |
Filip Tehlar | 560274d | 2017-06-05 13:40:13 +0200 | [diff] [blame] | 857 | a->fwd_entry_index = lfe - lgm->lisp_fwd_entry_pool; |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 858 | |
| 859 | lfe->type = (a->is_negative ? |
| 860 | LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE : |
| 861 | LISP_GPE_FWD_ENTRY_TYPE_NORMAL); |
| 862 | lfe->l2.eid_bd_id = a->bd_id; |
| 863 | lfe->l2.eid_bd_index = bd_indexp[0]; |
| 864 | lfe->tenant = lisp_gpe_tenant_find_or_create (lfe->key->vni); |
| 865 | |
| 866 | if (LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE != lfe->type) |
| 867 | { |
| 868 | fib_route_path_t *rpaths; |
| 869 | |
| 870 | /* |
| 871 | * Make the sorted array of LISP paths with their resp. adjacency |
| 872 | */ |
| 873 | lisp_gpe_fwd_entry_mk_paths (lfe, a); |
| 874 | |
| 875 | /* |
| 876 | * From the LISP paths, construct a FIB path list that will |
| 877 | * contribute a load-balance. |
| 878 | */ |
| 879 | rpaths = lisp_gpe_mk_fib_paths (lfe->paths); |
| 880 | |
| 881 | lfe->l2.path_list_index = |
| 882 | fib_path_list_create (FIB_PATH_LIST_FLAG_NONE, rpaths); |
| 883 | |
| 884 | /* |
| 885 | * become a child of the path-list so we receive updates when |
| 886 | * its forwarding state changes. this includes an implicit lock. |
| 887 | */ |
| 888 | lfe->l2.child_index = |
| 889 | fib_path_list_child_add (lfe->l2.path_list_index, |
| 890 | FIB_NODE_TYPE_LISP_GPE_FWD_ENTRY, |
| 891 | lfe - lgm->lisp_fwd_entry_pool); |
| 892 | } |
| 893 | else |
| 894 | { |
| 895 | lfe->action = a->action; |
| 896 | } |
| 897 | |
| 898 | lisp_gpe_l2_update_fwding (lfe); |
| 899 | |
| 900 | return 0; |
| 901 | } |
| 902 | |
| 903 | /** |
Florin Coras | ce1b4c7 | 2017-01-26 14:25:34 -0800 | [diff] [blame] | 904 | * @brief Lookup NSH SD FIB entry |
| 905 | * |
| 906 | * Does an SPI+SI lookup in the NSH LISP FIB. |
| 907 | * |
| 908 | * @param[in] lgm Reference to @ref lisp_gpe_main_t. |
| 909 | * @param[in] spi_si SPI + SI. |
| 910 | * |
| 911 | * @return next node index. |
| 912 | */ |
| 913 | const dpo_id_t * |
Florin Coras | 263440e | 2017-02-22 23:38:08 -0800 | [diff] [blame] | 914 | lisp_nsh_fib_lookup (lisp_gpe_main_t * lgm, u32 spi_si_net_order) |
Florin Coras | ce1b4c7 | 2017-01-26 14:25:34 -0800 | [diff] [blame] | 915 | { |
| 916 | int rv; |
| 917 | BVT (clib_bihash_kv) kv, value; |
| 918 | |
Dave Barach | b7b9299 | 2018-10-17 10:38:51 -0400 | [diff] [blame] | 919 | clib_memset (&kv, 0, sizeof (kv)); |
Florin Coras | 263440e | 2017-02-22 23:38:08 -0800 | [diff] [blame] | 920 | kv.key[0] = spi_si_net_order; |
Florin Coras | ce1b4c7 | 2017-01-26 14:25:34 -0800 | [diff] [blame] | 921 | rv = BV (clib_bihash_search_inline_2) (&lgm->nsh_fib, &kv, &value); |
| 922 | |
| 923 | if (rv != 0) |
| 924 | { |
| 925 | return lgm->nsh_cp_lkup; |
| 926 | } |
| 927 | else |
| 928 | { |
| 929 | lisp_gpe_fwd_entry_t *lfe; |
| 930 | lfe = pool_elt_at_index (lgm->lisp_fwd_entry_pool, value.value); |
| 931 | return &lfe->nsh.choice; |
| 932 | } |
| 933 | } |
| 934 | |
| 935 | /** |
| 936 | * @brief Add/del NSH FIB entry |
| 937 | * |
| 938 | * Inserts value in NSH FIB keyed by SPI+SI. If entry is |
| 939 | * overwritten the associated value is returned. |
| 940 | * |
| 941 | * @param[in] lgm Reference to @ref lisp_gpe_main_t. |
| 942 | * @param[in] spi_si SPI + SI. |
| 943 | * @param[in] dpo Load balanced mapped to SPI + SI |
| 944 | * |
| 945 | * @return ~0 or value of overwritten entry. |
| 946 | */ |
| 947 | static u32 |
Florin Coras | 263440e | 2017-02-22 23:38:08 -0800 | [diff] [blame] | 948 | lisp_nsh_fib_add_del_entry (u32 spi_si_host_order, u32 lfei, u8 is_add) |
Florin Coras | ce1b4c7 | 2017-01-26 14:25:34 -0800 | [diff] [blame] | 949 | { |
| 950 | lisp_gpe_main_t *lgm = &lisp_gpe_main; |
| 951 | BVT (clib_bihash_kv) kv, value; |
| 952 | u32 old_val = ~0; |
| 953 | |
Dave Barach | b7b9299 | 2018-10-17 10:38:51 -0400 | [diff] [blame] | 954 | clib_memset (&kv, 0, sizeof (kv)); |
Florin Coras | 263440e | 2017-02-22 23:38:08 -0800 | [diff] [blame] | 955 | kv.key[0] = clib_host_to_net_u32 (spi_si_host_order); |
Florin Coras | ce1b4c7 | 2017-01-26 14:25:34 -0800 | [diff] [blame] | 956 | kv.value = 0ULL; |
| 957 | |
| 958 | if (BV (clib_bihash_search) (&lgm->nsh_fib, &kv, &value) == 0) |
| 959 | old_val = value.value; |
| 960 | |
| 961 | if (!is_add) |
| 962 | BV (clib_bihash_add_del) (&lgm->nsh_fib, &kv, 0 /* is_add */ ); |
| 963 | else |
| 964 | { |
| 965 | kv.value = lfei; |
| 966 | BV (clib_bihash_add_del) (&lgm->nsh_fib, &kv, 1 /* is_add */ ); |
| 967 | } |
| 968 | return old_val; |
| 969 | } |
| 970 | |
| 971 | #define NSH_FIB_DEFAULT_HASH_NUM_BUCKETS (64 * 1024) |
| 972 | #define NSH_FIB_DEFAULT_HASH_MEMORY_SIZE (32<<20) |
| 973 | |
| 974 | static void |
| 975 | nsh_fib_init (lisp_gpe_main_t * lgm) |
| 976 | { |
| 977 | BV (clib_bihash_init) (&lgm->nsh_fib, "nsh fib", |
| 978 | 1 << max_log2 (NSH_FIB_DEFAULT_HASH_NUM_BUCKETS), |
| 979 | NSH_FIB_DEFAULT_HASH_MEMORY_SIZE); |
| 980 | |
| 981 | /* |
| 982 | * the result from a 'miss' in a NSH Table |
| 983 | */ |
| 984 | lgm->nsh_cp_lkup = lisp_cp_dpo_get (DPO_PROTO_NSH); |
| 985 | } |
| 986 | |
| 987 | static void |
| 988 | del_nsh_fwd_entry_i (lisp_gpe_main_t * lgm, lisp_gpe_fwd_entry_t * lfe) |
| 989 | { |
| 990 | lisp_fwd_path_t *path; |
| 991 | |
| 992 | if (LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE != lfe->type) |
| 993 | { |
| 994 | vec_foreach (path, lfe->paths) |
| 995 | { |
| 996 | lisp_gpe_adjacency_unlock (path->lisp_adj); |
| 997 | } |
| 998 | fib_path_list_child_remove (lfe->nsh.path_list_index, |
| 999 | lfe->nsh.child_index); |
| 1000 | dpo_reset (&lfe->nsh.choice); |
| 1001 | } |
| 1002 | |
| 1003 | lisp_nsh_fib_add_del_entry (fid_addr_nsh (&lfe->key->rmt), (u32) ~ 0, 0); |
| 1004 | |
| 1005 | hash_unset_mem (lgm->lisp_gpe_fwd_entries, lfe->key); |
| 1006 | clib_mem_free (lfe->key); |
| 1007 | pool_put (lgm->lisp_fwd_entry_pool, lfe); |
| 1008 | } |
| 1009 | |
| 1010 | /** |
| 1011 | * @brief Delete LISP NSH forwarding entry. |
| 1012 | * |
| 1013 | * Coordinates the removal of forwarding entries for NSH LISP overlay: |
| 1014 | * |
| 1015 | * @param[in] lgm Reference to @ref lisp_gpe_main_t. |
| 1016 | * @param[in] a Parameters for building the forwarding entry. |
| 1017 | * |
| 1018 | * @return 0 on success. |
| 1019 | */ |
| 1020 | static int |
| 1021 | del_nsh_fwd_entry (lisp_gpe_main_t * lgm, |
| 1022 | vnet_lisp_gpe_add_del_fwd_entry_args_t * a) |
| 1023 | { |
| 1024 | lisp_gpe_fwd_entry_key_t key; |
| 1025 | lisp_gpe_fwd_entry_t *lfe; |
| 1026 | |
| 1027 | lfe = find_fwd_entry (lgm, a, &key); |
| 1028 | |
| 1029 | if (NULL == lfe) |
| 1030 | return VNET_API_ERROR_INVALID_VALUE; |
| 1031 | |
| 1032 | del_nsh_fwd_entry_i (lgm, lfe); |
| 1033 | |
| 1034 | return (0); |
| 1035 | } |
| 1036 | |
| 1037 | /** |
| 1038 | * @brief Construct and insert the forwarding information used by an NSH entry |
| 1039 | */ |
| 1040 | static void |
| 1041 | lisp_gpe_nsh_update_fwding (lisp_gpe_fwd_entry_t * lfe) |
| 1042 | { |
| 1043 | lisp_gpe_main_t *lgm = vnet_lisp_gpe_get_main (); |
| 1044 | dpo_id_t dpo = DPO_INVALID; |
| 1045 | vnet_hw_interface_t *hi; |
| 1046 | uword *hip; |
| 1047 | |
| 1048 | if (LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE != lfe->type) |
| 1049 | { |
| 1050 | fib_path_list_contribute_forwarding (lfe->nsh.path_list_index, |
| 1051 | FIB_FORW_CHAIN_TYPE_NSH, |
Neale Ranns | 9128637 | 2017-12-05 13:24:04 -0800 | [diff] [blame] | 1052 | FIB_PATH_LIST_FWD_FLAG_NONE, |
Florin Coras | ce1b4c7 | 2017-01-26 14:25:34 -0800 | [diff] [blame] | 1053 | &lfe->nsh.dpo); |
| 1054 | |
| 1055 | /* |
| 1056 | * LISP encap is always the same for this SPI+SI so we do that hash now |
| 1057 | * and stack on the choice. |
| 1058 | */ |
| 1059 | if (DPO_LOAD_BALANCE == lfe->nsh.dpo.dpoi_type) |
| 1060 | { |
| 1061 | const dpo_id_t *tmp; |
| 1062 | const load_balance_t *lb; |
| 1063 | int hash; |
| 1064 | |
| 1065 | lb = load_balance_get (lfe->nsh.dpo.dpoi_index); |
| 1066 | hash = fid_addr_nsh (&lfe->key->rmt) % lb->lb_n_buckets; |
| 1067 | tmp = |
| 1068 | load_balance_get_bucket_i (lb, hash & lb->lb_n_buckets_minus_1); |
| 1069 | |
| 1070 | dpo_copy (&dpo, tmp); |
| 1071 | } |
| 1072 | } |
| 1073 | else |
| 1074 | { |
| 1075 | switch (lfe->action) |
| 1076 | { |
| 1077 | case SEND_MAP_REQUEST: |
| 1078 | dpo_copy (&dpo, lgm->nsh_cp_lkup); |
| 1079 | break; |
| 1080 | case NO_ACTION: |
| 1081 | case FORWARD_NATIVE: |
| 1082 | case DROP: |
| 1083 | dpo_copy (&dpo, drop_dpo_get (DPO_PROTO_NSH)); |
| 1084 | } |
| 1085 | } |
| 1086 | |
| 1087 | /* We have only one nsh-lisp interface (no NSH virtualization) */ |
| 1088 | hip = hash_get (lgm->nsh_ifaces.hw_if_index_by_dp_table, 0); |
Shwetha Bhandari | b05f1f0 | 2017-02-14 10:39:06 +0530 | [diff] [blame] | 1089 | if (hip) |
| 1090 | { |
| 1091 | hi = vnet_get_hw_interface (lgm->vnet_main, hip[0]); |
| 1092 | dpo_stack_from_node (hi->tx_node_index, &lfe->nsh.choice, &dpo); |
| 1093 | } |
Florin Coras | ce1b4c7 | 2017-01-26 14:25:34 -0800 | [diff] [blame] | 1094 | /* add entry to nsh lisp fib */ |
| 1095 | lisp_nsh_fib_add_del_entry (fid_addr_nsh (&lfe->key->rmt), |
| 1096 | lfe - lgm->lisp_fwd_entry_pool, 1); |
Florin Coras | ce1b4c7 | 2017-01-26 14:25:34 -0800 | [diff] [blame] | 1097 | dpo_reset (&dpo); |
Shwetha Bhandari | b05f1f0 | 2017-02-14 10:39:06 +0530 | [diff] [blame] | 1098 | |
Florin Coras | ce1b4c7 | 2017-01-26 14:25:34 -0800 | [diff] [blame] | 1099 | } |
| 1100 | |
| 1101 | /** |
| 1102 | * @brief Add LISP NSH forwarding entry. |
| 1103 | * |
| 1104 | * Coordinates the creation of forwarding entries for L2 LISP overlay: |
| 1105 | * creates lisp-gpe tunnel and injects new entry in Source/Dest L2 FIB. |
| 1106 | * |
| 1107 | * @param[in] lgm Reference to @ref lisp_gpe_main_t. |
| 1108 | * @param[in] a Parameters for building the forwarding entry. |
| 1109 | * |
| 1110 | * @return 0 on success. |
| 1111 | */ |
| 1112 | static int |
| 1113 | add_nsh_fwd_entry (lisp_gpe_main_t * lgm, |
| 1114 | vnet_lisp_gpe_add_del_fwd_entry_args_t * a) |
| 1115 | { |
| 1116 | lisp_gpe_fwd_entry_key_t key; |
| 1117 | lisp_gpe_fwd_entry_t *lfe; |
| 1118 | |
| 1119 | lfe = find_fwd_entry (lgm, a, &key); |
| 1120 | |
| 1121 | if (NULL != lfe) |
| 1122 | /* don't support updates */ |
| 1123 | return VNET_API_ERROR_INVALID_VALUE; |
| 1124 | |
| 1125 | pool_get (lgm->lisp_fwd_entry_pool, lfe); |
Dave Barach | b7b9299 | 2018-10-17 10:38:51 -0400 | [diff] [blame] | 1126 | clib_memset (lfe, 0, sizeof (*lfe)); |
Florin Coras | ce1b4c7 | 2017-01-26 14:25:34 -0800 | [diff] [blame] | 1127 | lfe->key = clib_mem_alloc (sizeof (key)); |
| 1128 | memcpy (lfe->key, &key, sizeof (key)); |
| 1129 | |
| 1130 | hash_set_mem (lgm->lisp_gpe_fwd_entries, lfe->key, |
| 1131 | lfe - lgm->lisp_fwd_entry_pool); |
Filip Tehlar | 560274d | 2017-06-05 13:40:13 +0200 | [diff] [blame] | 1132 | a->fwd_entry_index = lfe - lgm->lisp_fwd_entry_pool; |
Florin Coras | ce1b4c7 | 2017-01-26 14:25:34 -0800 | [diff] [blame] | 1133 | |
| 1134 | lfe->type = (a->is_negative ? |
| 1135 | LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE : |
| 1136 | LISP_GPE_FWD_ENTRY_TYPE_NORMAL); |
| 1137 | lfe->tenant = 0; |
| 1138 | |
| 1139 | if (LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE != lfe->type) |
| 1140 | { |
| 1141 | fib_route_path_t *rpaths; |
| 1142 | |
| 1143 | /* |
| 1144 | * Make the sorted array of LISP paths with their resp. adjacency |
| 1145 | */ |
| 1146 | lisp_gpe_fwd_entry_mk_paths (lfe, a); |
| 1147 | |
| 1148 | /* |
| 1149 | * From the LISP paths, construct a FIB path list that will |
| 1150 | * contribute a load-balance. |
| 1151 | */ |
| 1152 | rpaths = lisp_gpe_mk_fib_paths (lfe->paths); |
| 1153 | |
| 1154 | lfe->nsh.path_list_index = |
| 1155 | fib_path_list_create (FIB_PATH_LIST_FLAG_NONE, rpaths); |
| 1156 | |
| 1157 | /* |
| 1158 | * become a child of the path-list so we receive updates when |
| 1159 | * its forwarding state changes. this includes an implicit lock. |
| 1160 | */ |
| 1161 | lfe->nsh.child_index = |
| 1162 | fib_path_list_child_add (lfe->nsh.path_list_index, |
| 1163 | FIB_NODE_TYPE_LISP_GPE_FWD_ENTRY, |
| 1164 | lfe - lgm->lisp_fwd_entry_pool); |
| 1165 | } |
| 1166 | else |
| 1167 | { |
| 1168 | lfe->action = a->action; |
| 1169 | } |
| 1170 | |
| 1171 | lisp_gpe_nsh_update_fwding (lfe); |
| 1172 | |
| 1173 | return 0; |
| 1174 | } |
| 1175 | |
| 1176 | /** |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 1177 | * @brief conver from the embedded fib_node_t struct to the LSIP entry |
| 1178 | */ |
| 1179 | static lisp_gpe_fwd_entry_t * |
| 1180 | lisp_gpe_fwd_entry_from_fib_node (fib_node_t * node) |
| 1181 | { |
| 1182 | return ((lisp_gpe_fwd_entry_t *) (((char *) node) - |
| 1183 | STRUCT_OFFSET_OF (lisp_gpe_fwd_entry_t, |
| 1184 | node))); |
| 1185 | } |
| 1186 | |
| 1187 | /** |
| 1188 | * @brief Function invoked during a backwalk of the FIB graph |
| 1189 | */ |
| 1190 | static fib_node_back_walk_rc_t |
| 1191 | lisp_gpe_fib_node_back_walk (fib_node_t * node, |
| 1192 | fib_node_back_walk_ctx_t * ctx) |
| 1193 | { |
Florin Coras | ce1b4c7 | 2017-01-26 14:25:34 -0800 | [diff] [blame] | 1194 | lisp_gpe_fwd_entry_t *lfe = lisp_gpe_fwd_entry_from_fib_node (node); |
| 1195 | |
| 1196 | if (fid_addr_type (&lfe->key->rmt) == FID_ADDR_MAC) |
| 1197 | lisp_gpe_l2_update_fwding (lfe); |
| 1198 | else if (fid_addr_type (&lfe->key->rmt) == FID_ADDR_NSH) |
| 1199 | lisp_gpe_nsh_update_fwding (lfe); |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 1200 | |
| 1201 | return (FIB_NODE_BACK_WALK_CONTINUE); |
| 1202 | } |
| 1203 | |
| 1204 | /** |
| 1205 | * @brief Get a fib_node_t struct from the index of a LISP fwd entry |
| 1206 | */ |
| 1207 | static fib_node_t * |
| 1208 | lisp_gpe_fwd_entry_get_fib_node (fib_node_index_t index) |
| 1209 | { |
| 1210 | lisp_gpe_main_t *lgm = &lisp_gpe_main; |
| 1211 | lisp_gpe_fwd_entry_t *lfe; |
| 1212 | |
| 1213 | lfe = pool_elt_at_index (lgm->lisp_fwd_entry_pool, index); |
| 1214 | |
| 1215 | return (&(lfe->node)); |
| 1216 | } |
| 1217 | |
| 1218 | /** |
| 1219 | * @brief An indication from the graph that the last lock has gone |
| 1220 | */ |
| 1221 | static void |
| 1222 | lisp_gpe_fwd_entry_fib_node_last_lock_gone (fib_node_t * node) |
| 1223 | { |
| 1224 | /* We don't manage the locks of the LISP objects via the graph, since |
| 1225 | * this object has no children. so this is a no-op. */ |
| 1226 | } |
| 1227 | |
| 1228 | /** |
| 1229 | * @brief Virtual function table to register with FIB for the LISP type |
| 1230 | */ |
| 1231 | const static fib_node_vft_t lisp_fwd_vft = { |
| 1232 | .fnv_get = lisp_gpe_fwd_entry_get_fib_node, |
| 1233 | .fnv_last_lock = lisp_gpe_fwd_entry_fib_node_last_lock_gone, |
| 1234 | .fnv_back_walk = lisp_gpe_fib_node_back_walk, |
| 1235 | }; |
| 1236 | |
| 1237 | /** |
| 1238 | * @brief Forwarding entry create/remove dispatcher. |
| 1239 | * |
| 1240 | * Calls l2 or l3 forwarding entry add/del function based on input data. |
| 1241 | * |
| 1242 | * @param[in] a Forwarding entry parameters. |
| 1243 | * @param[out] hw_if_indexp NOT USED |
| 1244 | * |
| 1245 | * @return 0 on success. |
| 1246 | */ |
| 1247 | int |
| 1248 | vnet_lisp_gpe_add_del_fwd_entry (vnet_lisp_gpe_add_del_fwd_entry_args_t * a, |
| 1249 | u32 * hw_if_indexp) |
| 1250 | { |
| 1251 | lisp_gpe_main_t *lgm = &lisp_gpe_main; |
| 1252 | u8 type; |
| 1253 | |
| 1254 | if (vnet_lisp_gpe_enable_disable_status () == 0) |
| 1255 | { |
| 1256 | clib_warning ("LISP is disabled!"); |
| 1257 | return VNET_API_ERROR_LISP_DISABLED; |
| 1258 | } |
| 1259 | |
| 1260 | type = gid_address_type (&a->rmt_eid); |
| 1261 | switch (type) |
| 1262 | { |
| 1263 | case GID_ADDR_IP_PREFIX: |
| 1264 | if (a->is_add) |
| 1265 | return add_ip_fwd_entry (lgm, a); |
| 1266 | else |
| 1267 | return del_ip_fwd_entry (lgm, a); |
| 1268 | break; |
| 1269 | case GID_ADDR_MAC: |
| 1270 | if (a->is_add) |
| 1271 | return add_l2_fwd_entry (lgm, a); |
| 1272 | else |
| 1273 | return del_l2_fwd_entry (lgm, a); |
Florin Coras | ce1b4c7 | 2017-01-26 14:25:34 -0800 | [diff] [blame] | 1274 | case GID_ADDR_NSH: |
| 1275 | if (a->is_add) |
| 1276 | return add_nsh_fwd_entry (lgm, a); |
| 1277 | else |
| 1278 | return del_nsh_fwd_entry (lgm, a); |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 1279 | default: |
| 1280 | clib_warning ("Forwarding entries for type %d not supported!", type); |
| 1281 | return -1; |
| 1282 | } |
| 1283 | } |
| 1284 | |
Filip Tehlar | 2151191 | 2017-04-07 10:41:42 +0200 | [diff] [blame] | 1285 | int |
Filip Tehlar | 4868ff6 | 2017-03-09 16:48:39 +0100 | [diff] [blame] | 1286 | vnet_lisp_flush_stats (void) |
| 1287 | { |
| 1288 | lisp_gpe_main_t *lgm = vnet_lisp_gpe_get_main (); |
Filip Tehlar | 2151191 | 2017-04-07 10:41:42 +0200 | [diff] [blame] | 1289 | vlib_combined_counter_main_t *cm = &lgm->counters; |
| 1290 | u32 i; |
Filip Tehlar | 4868ff6 | 2017-03-09 16:48:39 +0100 | [diff] [blame] | 1291 | |
Swarup Nayak | abbc04c | 2017-12-11 20:08:57 +0530 | [diff] [blame] | 1292 | if (cm->counters == NULL) |
| 1293 | return 0; |
| 1294 | |
Filip Tehlar | 2151191 | 2017-04-07 10:41:42 +0200 | [diff] [blame] | 1295 | for (i = 0; i < vlib_combined_counter_n_counters (cm); i++) |
| 1296 | vlib_zero_combined_counter (cm, i); |
| 1297 | |
| 1298 | return 0; |
Filip Tehlar | 4868ff6 | 2017-03-09 16:48:39 +0100 | [diff] [blame] | 1299 | } |
| 1300 | |
| 1301 | static void |
| 1302 | lisp_del_adj_stats (lisp_gpe_main_t * lgm, u32 fwd_entry_index, u32 ti) |
| 1303 | { |
| 1304 | hash_pair_t *hp; |
| 1305 | lisp_stats_key_t key; |
| 1306 | void *key_copy; |
| 1307 | uword *p; |
Filip Tehlar | 2151191 | 2017-04-07 10:41:42 +0200 | [diff] [blame] | 1308 | u8 *s; |
Filip Tehlar | 4868ff6 | 2017-03-09 16:48:39 +0100 | [diff] [blame] | 1309 | |
Dave Barach | b7b9299 | 2018-10-17 10:38:51 -0400 | [diff] [blame] | 1310 | clib_memset (&key, 0, sizeof (key)); |
Filip Tehlar | 4868ff6 | 2017-03-09 16:48:39 +0100 | [diff] [blame] | 1311 | key.fwd_entry_index = fwd_entry_index; |
| 1312 | key.tunnel_index = ti; |
| 1313 | |
| 1314 | p = hash_get_mem (lgm->lisp_stats_index_by_key, &key); |
| 1315 | if (p) |
| 1316 | { |
Filip Tehlar | 2151191 | 2017-04-07 10:41:42 +0200 | [diff] [blame] | 1317 | s = pool_elt_at_index (lgm->dummy_stats_pool, p[0]); |
Filip Tehlar | 4868ff6 | 2017-03-09 16:48:39 +0100 | [diff] [blame] | 1318 | hp = hash_get_pair (lgm->lisp_stats_index_by_key, &key); |
| 1319 | key_copy = (void *) (hp->key); |
| 1320 | hash_unset_mem (lgm->lisp_stats_index_by_key, &key); |
| 1321 | clib_mem_free (key_copy); |
Filip Tehlar | 2151191 | 2017-04-07 10:41:42 +0200 | [diff] [blame] | 1322 | pool_put (lgm->dummy_stats_pool, s); |
Filip Tehlar | 4868ff6 | 2017-03-09 16:48:39 +0100 | [diff] [blame] | 1323 | } |
| 1324 | } |
| 1325 | |
| 1326 | void |
Filip Tehlar | 2151191 | 2017-04-07 10:41:42 +0200 | [diff] [blame] | 1327 | vnet_lisp_gpe_del_fwd_counters (vnet_lisp_gpe_add_del_fwd_entry_args_t * a, |
| 1328 | u32 fwd_entry_index) |
Filip Tehlar | 4868ff6 | 2017-03-09 16:48:39 +0100 | [diff] [blame] | 1329 | { |
| 1330 | lisp_gpe_main_t *lgm = &lisp_gpe_main; |
| 1331 | lisp_gpe_fwd_entry_key_t fe_key; |
| 1332 | lisp_gpe_fwd_entry_t *lfe; |
| 1333 | lisp_fwd_path_t *path; |
| 1334 | const lisp_gpe_adjacency_t *ladj; |
| 1335 | |
| 1336 | lfe = find_fwd_entry (lgm, a, &fe_key); |
| 1337 | if (!lfe) |
| 1338 | return; |
| 1339 | |
| 1340 | if (LISP_GPE_FWD_ENTRY_TYPE_NORMAL != lfe->type) |
| 1341 | return; |
| 1342 | |
| 1343 | vec_foreach (path, lfe->paths) |
| 1344 | { |
| 1345 | ladj = lisp_gpe_adjacency_get (path->lisp_adj); |
| 1346 | lisp_del_adj_stats (lgm, fwd_entry_index, ladj->tunnel_index); |
| 1347 | } |
| 1348 | } |
| 1349 | |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 1350 | /** |
| 1351 | * @brief Flush all the forwrding entries |
| 1352 | */ |
| 1353 | void |
| 1354 | vnet_lisp_gpe_fwd_entry_flush (void) |
| 1355 | { |
| 1356 | lisp_gpe_main_t *lgm = &lisp_gpe_main; |
| 1357 | lisp_gpe_fwd_entry_t *lfe; |
| 1358 | |
| 1359 | /* *INDENT-OFF* */ |
| 1360 | pool_foreach (lfe, lgm->lisp_fwd_entry_pool, |
| 1361 | ({ |
| 1362 | switch (fid_addr_type(&lfe->key->rmt)) |
| 1363 | { |
| 1364 | case FID_ADDR_MAC: |
| 1365 | del_l2_fwd_entry_i (lgm, lfe); |
| 1366 | break; |
| 1367 | case FID_ADDR_IP_PREF: |
| 1368 | del_ip_fwd_entry_i (lgm, lfe); |
| 1369 | break; |
Florin Coras | ce1b4c7 | 2017-01-26 14:25:34 -0800 | [diff] [blame] | 1370 | case FID_ADDR_NSH: |
| 1371 | del_nsh_fwd_entry_i (lgm, lfe); |
| 1372 | break; |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 1373 | } |
| 1374 | })); |
| 1375 | /* *INDENT-ON* */ |
| 1376 | } |
| 1377 | |
| 1378 | static u8 * |
Christophe Fontaine | d3c008d | 2017-10-02 18:10:54 +0200 | [diff] [blame] | 1379 | format_lisp_fwd_path (u8 * s, va_list * ap) |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 1380 | { |
Christophe Fontaine | d3c008d | 2017-10-02 18:10:54 +0200 | [diff] [blame] | 1381 | lisp_fwd_path_t *lfp = va_arg (*ap, lisp_fwd_path_t *); |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 1382 | |
Filip Tehlar | c3af7bf | 2017-01-13 14:13:09 +0100 | [diff] [blame] | 1383 | s = format (s, "weight:%d ", lfp->weight); |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 1384 | s = format (s, "adj:[%U]\n", |
| 1385 | format_lisp_gpe_adjacency, |
| 1386 | lisp_gpe_adjacency_get (lfp->lisp_adj), |
| 1387 | LISP_GPE_ADJ_FORMAT_FLAG_NONE); |
| 1388 | |
| 1389 | return (s); |
| 1390 | } |
| 1391 | |
| 1392 | typedef enum lisp_gpe_fwd_entry_format_flag_t_ |
| 1393 | { |
| 1394 | LISP_GPE_FWD_ENTRY_FORMAT_NONE = (0 << 0), |
| 1395 | LISP_GPE_FWD_ENTRY_FORMAT_DETAIL = (1 << 1), |
| 1396 | } lisp_gpe_fwd_entry_format_flag_t; |
| 1397 | |
| 1398 | |
| 1399 | static u8 * |
Christophe Fontaine | d3c008d | 2017-10-02 18:10:54 +0200 | [diff] [blame] | 1400 | format_lisp_gpe_fwd_entry (u8 * s, va_list * ap) |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 1401 | { |
| 1402 | lisp_gpe_main_t *lgm = &lisp_gpe_main; |
Christophe Fontaine | d3c008d | 2017-10-02 18:10:54 +0200 | [diff] [blame] | 1403 | lisp_gpe_fwd_entry_t *lfe = va_arg (*ap, lisp_gpe_fwd_entry_t *); |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 1404 | lisp_gpe_fwd_entry_format_flag_t flags = |
Christophe Fontaine | d3c008d | 2017-10-02 18:10:54 +0200 | [diff] [blame] | 1405 | va_arg (*ap, lisp_gpe_fwd_entry_format_flag_t); |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 1406 | |
| 1407 | s = format (s, "VNI:%d VRF:%d EID: %U -> %U [index:%d]", |
| 1408 | lfe->key->vni, lfe->eid_table_id, |
| 1409 | format_fid_address, &lfe->key->lcl, |
| 1410 | format_fid_address, &lfe->key->rmt, |
| 1411 | lfe - lgm->lisp_fwd_entry_pool); |
| 1412 | |
| 1413 | if (LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE == lfe->type) |
| 1414 | { |
| 1415 | s = format (s, "\n Negative - action:%U", |
| 1416 | format_negative_mapping_action, lfe->action); |
| 1417 | } |
| 1418 | else |
| 1419 | { |
| 1420 | lisp_fwd_path_t *path; |
| 1421 | |
| 1422 | s = format (s, "\n via:"); |
| 1423 | vec_foreach (path, lfe->paths) |
| 1424 | { |
| 1425 | s = format (s, "\n %U", format_lisp_fwd_path, path); |
| 1426 | } |
| 1427 | } |
| 1428 | |
| 1429 | if (flags & LISP_GPE_FWD_ENTRY_FORMAT_DETAIL) |
| 1430 | { |
| 1431 | switch (fid_addr_type (&lfe->key->rmt)) |
| 1432 | { |
| 1433 | case FID_ADDR_MAC: |
| 1434 | s = format (s, " fib-path-list:%d\n", lfe->l2.path_list_index); |
| 1435 | s = format (s, " dpo:%U\n", format_dpo_id, &lfe->l2.dpo, 0); |
| 1436 | break; |
Florin Coras | ce1b4c7 | 2017-01-26 14:25:34 -0800 | [diff] [blame] | 1437 | case FID_ADDR_NSH: |
| 1438 | s = format (s, " fib-path-list:%d\n", lfe->nsh.path_list_index); |
| 1439 | s = format (s, " dpo:%U\n", format_dpo_id, &lfe->nsh.dpo, 0); |
| 1440 | break; |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 1441 | case FID_ADDR_IP_PREF: |
| 1442 | break; |
| 1443 | } |
| 1444 | } |
| 1445 | |
| 1446 | return (s); |
| 1447 | } |
| 1448 | |
| 1449 | static clib_error_t * |
| 1450 | lisp_gpe_fwd_entry_show (vlib_main_t * vm, |
| 1451 | unformat_input_t * input, vlib_cli_command_t * cmd) |
| 1452 | { |
| 1453 | lisp_gpe_main_t *lgm = &lisp_gpe_main; |
| 1454 | lisp_gpe_fwd_entry_t *lfe; |
| 1455 | index_t index; |
| 1456 | u32 vni = ~0; |
| 1457 | |
| 1458 | if (unformat (input, "vni %d", &vni)) |
| 1459 | ; |
| 1460 | else if (unformat (input, "%d", &index)) |
| 1461 | { |
| 1462 | if (!pool_is_free_index (lgm->lisp_fwd_entry_pool, index)) |
| 1463 | { |
| 1464 | lfe = pool_elt_at_index (lgm->lisp_fwd_entry_pool, index); |
| 1465 | |
| 1466 | vlib_cli_output (vm, "[%d@] %U", |
| 1467 | index, |
| 1468 | format_lisp_gpe_fwd_entry, lfe, |
| 1469 | LISP_GPE_FWD_ENTRY_FORMAT_DETAIL); |
| 1470 | } |
| 1471 | else |
| 1472 | { |
| 1473 | vlib_cli_output (vm, "entry %d invalid", index); |
| 1474 | } |
| 1475 | |
| 1476 | return (NULL); |
| 1477 | } |
| 1478 | |
| 1479 | /* *INDENT-OFF* */ |
| 1480 | pool_foreach (lfe, lgm->lisp_fwd_entry_pool, |
| 1481 | ({ |
| 1482 | if ((vni == ~0) || |
| 1483 | (lfe->key->vni == vni)) |
| 1484 | vlib_cli_output (vm, "%U", format_lisp_gpe_fwd_entry, lfe, |
| 1485 | LISP_GPE_FWD_ENTRY_FORMAT_NONE); |
| 1486 | })); |
| 1487 | /* *INDENT-ON* */ |
| 1488 | |
| 1489 | return (NULL); |
| 1490 | } |
| 1491 | |
| 1492 | /* *INDENT-OFF* */ |
| 1493 | VLIB_CLI_COMMAND (lisp_gpe_fwd_entry_show_command, static) = { |
Filip Tehlar | 82786c4 | 2017-02-20 15:20:37 +0100 | [diff] [blame] | 1494 | .path = "show gpe entry", |
| 1495 | .short_help = "show gpe entry vni <vni> vrf <vrf> [leid <leid>] reid <reid>", |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 1496 | .function = lisp_gpe_fwd_entry_show, |
| 1497 | }; |
| 1498 | /* *INDENT-ON* */ |
| 1499 | |
| 1500 | clib_error_t * |
| 1501 | lisp_gpe_fwd_entry_init (vlib_main_t * vm) |
| 1502 | { |
| 1503 | lisp_gpe_main_t *lgm = &lisp_gpe_main; |
| 1504 | clib_error_t *error = NULL; |
| 1505 | |
| 1506 | if ((error = vlib_call_init_function (vm, lisp_cp_dpo_module_init))) |
| 1507 | return (error); |
| 1508 | |
| 1509 | l2_fib_init (lgm); |
Florin Coras | ce1b4c7 | 2017-01-26 14:25:34 -0800 | [diff] [blame] | 1510 | nsh_fib_init (lgm); |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 1511 | |
| 1512 | fib_node_register_type (FIB_NODE_TYPE_LISP_GPE_FWD_ENTRY, &lisp_fwd_vft); |
| 1513 | |
| 1514 | return (error); |
| 1515 | } |
| 1516 | |
Filip Tehlar | 0eb874e | 2017-05-18 14:23:32 +0200 | [diff] [blame] | 1517 | u32 * |
| 1518 | vnet_lisp_gpe_get_fwd_entry_vnis (void) |
| 1519 | { |
| 1520 | lisp_gpe_main_t *lgm = vnet_lisp_gpe_get_main (); |
| 1521 | lisp_gpe_fwd_entry_t *lfe; |
| 1522 | u32 *vnis = 0; |
| 1523 | |
| 1524 | /* *INDENT-OFF* */ |
| 1525 | pool_foreach (lfe, lgm->lisp_fwd_entry_pool, |
| 1526 | ({ |
| 1527 | hash_set (vnis, lfe->key->vni, 0); |
| 1528 | })); |
| 1529 | /* *INDENT-ON* */ |
| 1530 | |
| 1531 | return vnis; |
| 1532 | } |
| 1533 | |
Filip Tehlar | 5fae99c | 2017-01-18 12:57:37 +0100 | [diff] [blame] | 1534 | lisp_api_gpe_fwd_entry_t * |
| 1535 | vnet_lisp_gpe_fwd_entries_get_by_vni (u32 vni) |
| 1536 | { |
| 1537 | lisp_gpe_main_t *lgm = &lisp_gpe_main; |
| 1538 | lisp_gpe_fwd_entry_t *lfe; |
| 1539 | lisp_api_gpe_fwd_entry_t *entries = 0, e; |
| 1540 | |
| 1541 | /* *INDENT-OFF* */ |
| 1542 | pool_foreach (lfe, lgm->lisp_fwd_entry_pool, |
| 1543 | ({ |
| 1544 | if (lfe->key->vni == vni) |
| 1545 | { |
Dave Barach | b7b9299 | 2018-10-17 10:38:51 -0400 | [diff] [blame] | 1546 | clib_memset (&e, 0, sizeof (e)); |
Filip Tehlar | 5fae99c | 2017-01-18 12:57:37 +0100 | [diff] [blame] | 1547 | e.dp_table = lfe->eid_table_id; |
| 1548 | e.vni = lfe->key->vni; |
Filip Tehlar | 0eb874e | 2017-05-18 14:23:32 +0200 | [diff] [blame] | 1549 | if (lfe->type == LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE) |
| 1550 | e.action = lfe->action; |
Filip Tehlar | 5fae99c | 2017-01-18 12:57:37 +0100 | [diff] [blame] | 1551 | e.fwd_entry_index = lfe - lgm->lisp_fwd_entry_pool; |
| 1552 | memcpy (&e.reid, &lfe->key->rmt, sizeof (e.reid)); |
| 1553 | memcpy (&e.leid, &lfe->key->lcl, sizeof (e.leid)); |
| 1554 | vec_add1 (entries, e); |
| 1555 | } |
| 1556 | })); |
| 1557 | /* *INDENT-ON* */ |
| 1558 | |
| 1559 | return entries; |
| 1560 | } |
| 1561 | |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 1562 | int |
| 1563 | vnet_lisp_gpe_get_fwd_stats (vnet_lisp_gpe_add_del_fwd_entry_args_t * a, |
| 1564 | vlib_counter_t * c) |
| 1565 | { |
| 1566 | lisp_gpe_main_t *lgm = vnet_lisp_gpe_get_main (); |
| 1567 | lisp_gpe_fwd_entry_t *lfe; |
| 1568 | lisp_gpe_fwd_entry_key_t unused; |
| 1569 | |
| 1570 | lfe = find_fwd_entry (lgm, a, &unused); |
| 1571 | if (NULL == lfe) |
| 1572 | return -1; |
| 1573 | |
| 1574 | if (LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE == lfe->type) |
| 1575 | return -1; |
| 1576 | |
| 1577 | if (~0 == lfe->dpoi_index) |
| 1578 | return -1; |
| 1579 | |
| 1580 | vlib_get_combined_counter (&load_balance_main.lbm_to_counters, |
| 1581 | lfe->dpoi_index, c); |
| 1582 | return 0; |
| 1583 | } |
| 1584 | |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 1585 | VLIB_INIT_FUNCTION (lisp_gpe_fwd_entry_init); |
| 1586 | |
| 1587 | /* |
| 1588 | * fd.io coding-style-patch-verification: ON |
| 1589 | * |
| 1590 | * Local Variables: |
| 1591 | * eval: (c-set-style "gnu") |
| 1592 | * End: |
| 1593 | */ |