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 "fib_entry.h" |
| 17 | #include "fib_entry_src.h" |
| 18 | #include "fib_path_list.h" |
| 19 | #include "fib_table.h" |
| 20 | #include "fib_entry_cover.h" |
| 21 | #include "fib_attached_export.h" |
Neale Ranns | 8142499 | 2017-05-18 03:03:22 -0700 | [diff] [blame] | 22 | #include "fib_path_ext.h" |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 23 | |
| 24 | /** |
Neale Ranns | 8142499 | 2017-05-18 03:03:22 -0700 | [diff] [blame] | 25 | * Source initialisation Function |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 26 | */ |
| 27 | static void |
| 28 | fib_entry_src_adj_init (fib_entry_src_t *src) |
| 29 | { |
Neale Ranns | 2303cb1 | 2018-02-21 04:57:17 -0800 | [diff] [blame] | 30 | src->u.adj.fesa_cover = FIB_NODE_INDEX_INVALID; |
| 31 | src->u.adj.fesa_sibling = FIB_NODE_INDEX_INVALID; |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 32 | } |
| 33 | |
| 34 | static void |
Neale Ranns | 8142499 | 2017-05-18 03:03:22 -0700 | [diff] [blame] | 35 | fib_entry_src_adj_path_add (fib_entry_src_t *src, |
| 36 | const fib_entry_t *entry, |
| 37 | fib_path_list_flags_t pl_flags, |
| 38 | const fib_route_path_t *paths) |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 39 | { |
Neale Ranns | 8142499 | 2017-05-18 03:03:22 -0700 | [diff] [blame] | 40 | const fib_route_path_t *rpath; |
| 41 | |
| 42 | if (FIB_NODE_INDEX_INVALID == src->fes_pl) |
| 43 | { |
| 44 | src->fes_pl = fib_path_list_create(pl_flags, paths); |
| 45 | } |
| 46 | else |
| 47 | { |
| 48 | src->fes_pl = fib_path_list_copy_and_path_add(src->fes_pl, |
| 49 | pl_flags, |
| 50 | paths); |
| 51 | } |
| 52 | |
| 53 | /* |
| 54 | * resolve the existing extensions |
| 55 | */ |
| 56 | fib_path_ext_list_resolve(&src->fes_path_exts, src->fes_pl); |
| 57 | |
| 58 | /* |
| 59 | * and new extensions |
| 60 | */ |
| 61 | vec_foreach(rpath, paths) |
| 62 | { |
| 63 | fib_path_ext_list_insert(&src->fes_path_exts, |
| 64 | src->fes_pl, |
| 65 | FIB_PATH_EXT_ADJ, |
| 66 | rpath); |
| 67 | } |
| 68 | } |
| 69 | |
| 70 | static void |
| 71 | fib_entry_src_adj_path_remove (fib_entry_src_t *src, |
| 72 | fib_path_list_flags_t pl_flags, |
| 73 | const fib_route_path_t *rpaths) |
| 74 | { |
| 75 | const fib_route_path_t *rpath; |
| 76 | |
| 77 | if (FIB_NODE_INDEX_INVALID != src->fes_pl) |
| 78 | { |
| 79 | src->fes_pl = fib_path_list_copy_and_path_remove(src->fes_pl, |
| 80 | pl_flags, |
| 81 | rpaths); |
| 82 | } |
| 83 | |
| 84 | /* |
| 85 | * remove the path-extension for the path |
| 86 | */ |
| 87 | vec_foreach(rpath, rpaths) |
| 88 | { |
| 89 | fib_path_ext_list_remove(&src->fes_path_exts, FIB_PATH_EXT_ADJ, rpath); |
| 90 | }; |
| 91 | /* |
| 92 | * resolve the remaining extensions |
| 93 | */ |
| 94 | fib_path_ext_list_resolve(&src->fes_path_exts, src->fes_pl); |
| 95 | } |
| 96 | |
| 97 | static void |
| 98 | fib_entry_src_adj_path_swap (fib_entry_src_t *src, |
| 99 | const fib_entry_t *entry, |
| 100 | fib_path_list_flags_t pl_flags, |
| 101 | const fib_route_path_t *paths) |
| 102 | { |
| 103 | const fib_route_path_t *rpath; |
| 104 | |
| 105 | /* |
| 106 | * flush all the old extensions before we create a brand new path-list |
| 107 | */ |
| 108 | fib_path_ext_list_flush(&src->fes_path_exts); |
| 109 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 110 | src->fes_pl = fib_path_list_create(pl_flags, paths); |
Neale Ranns | 8142499 | 2017-05-18 03:03:22 -0700 | [diff] [blame] | 111 | |
| 112 | /* |
| 113 | * and new extensions |
| 114 | */ |
| 115 | vec_foreach(rpath, paths) |
| 116 | { |
| 117 | fib_path_ext_list_push_back(&src->fes_path_exts, |
| 118 | src->fes_pl, |
| 119 | FIB_PATH_EXT_ADJ, |
| 120 | rpath); |
| 121 | } |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 122 | } |
| 123 | |
| 124 | static void |
| 125 | fib_entry_src_adj_remove (fib_entry_src_t *src) |
| 126 | { |
| 127 | src->fes_pl = FIB_NODE_INDEX_INVALID; |
| 128 | } |
| 129 | |
Neale Ranns | 8142499 | 2017-05-18 03:03:22 -0700 | [diff] [blame] | 130 | /* |
| 131 | * Add a path-extension indicating whether this path is resolved, |
| 132 | * because it passed the refinement check |
| 133 | */ |
| 134 | static void |
| 135 | fib_enty_src_adj_update_path_ext (fib_entry_src_t *src, |
| 136 | fib_node_index_t path_index, |
| 137 | fib_path_ext_adj_flags_t flags) |
| 138 | { |
| 139 | fib_path_ext_t *path_ext; |
| 140 | |
| 141 | path_ext = fib_path_ext_list_find_by_path_index(&src->fes_path_exts, |
| 142 | path_index); |
| 143 | |
| 144 | if (NULL != path_ext) |
| 145 | { |
| 146 | path_ext->fpe_adj_flags = flags; |
| 147 | } |
| 148 | else |
| 149 | { |
| 150 | ASSERT(!"no path extension"); |
| 151 | } |
| 152 | } |
| 153 | |
| 154 | typedef struct fib_entry_src_path_list_walk_cxt_t_ |
| 155 | { |
| 156 | fib_entry_src_t *src; |
| 157 | u32 cover_itf; |
| 158 | fib_path_ext_adj_flags_t flags; |
| 159 | } fib_entry_src_path_list_walk_cxt_t; |
| 160 | |
| 161 | static fib_path_list_walk_rc_t |
| 162 | fib_entry_src_adj_path_list_walk (fib_node_index_t pl_index, |
| 163 | fib_node_index_t path_index, |
| 164 | void *arg) |
| 165 | { |
| 166 | fib_entry_src_path_list_walk_cxt_t *ctx; |
| 167 | u32 adj_itf; |
| 168 | |
| 169 | ctx = arg; |
| 170 | adj_itf = fib_path_get_resolving_interface(path_index); |
| 171 | |
| 172 | if (ctx->cover_itf == adj_itf) |
| 173 | { |
| 174 | fib_enty_src_adj_update_path_ext(ctx->src, path_index, |
| 175 | FIB_PATH_EXT_ADJ_FLAG_REFINES_COVER); |
| 176 | ctx->flags |= FIB_PATH_EXT_ADJ_FLAG_REFINES_COVER; |
| 177 | } |
| 178 | else |
| 179 | { |
| 180 | /* |
| 181 | * if the interface the adj is on is unnumbered to the |
| 182 | * cover's, then allow that too. |
| 183 | */ |
| 184 | vnet_sw_interface_t *swif; |
| 185 | |
| 186 | swif = vnet_get_sw_interface (vnet_get_main(), adj_itf); |
| 187 | |
| 188 | if (swif->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED && |
| 189 | ctx->cover_itf == swif->unnumbered_sw_if_index) |
| 190 | { |
| 191 | fib_enty_src_adj_update_path_ext(ctx->src, path_index, |
| 192 | FIB_PATH_EXT_ADJ_FLAG_REFINES_COVER); |
| 193 | ctx->flags |= FIB_PATH_EXT_ADJ_FLAG_REFINES_COVER; |
| 194 | } |
| 195 | else |
| 196 | { |
| 197 | fib_enty_src_adj_update_path_ext(ctx->src, path_index, |
| 198 | FIB_PATH_EXT_ADJ_FLAG_NONE); |
| 199 | } |
| 200 | } |
| 201 | return (FIB_PATH_LIST_WALK_CONTINUE); |
| 202 | } |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 203 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 204 | static int |
| 205 | fib_entry_src_adj_activate (fib_entry_src_t *src, |
Neale Ranns | 8142499 | 2017-05-18 03:03:22 -0700 | [diff] [blame] | 206 | const fib_entry_t *fib_entry) |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 207 | { |
| 208 | fib_entry_t *cover; |
| 209 | |
| 210 | /* |
| 211 | * find the covering prefix. become a dependent thereof. |
| 212 | * there should always be a cover, though it may be the default route. |
| 213 | */ |
Neale Ranns | 2303cb1 | 2018-02-21 04:57:17 -0800 | [diff] [blame] | 214 | src->u.adj.fesa_cover = fib_table_get_less_specific(fib_entry->fe_fib_index, |
| 215 | &fib_entry->fe_prefix); |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 216 | |
Neale Ranns | 2303cb1 | 2018-02-21 04:57:17 -0800 | [diff] [blame] | 217 | ASSERT(FIB_NODE_INDEX_INVALID != src->u.adj.fesa_cover); |
| 218 | ASSERT(fib_entry_get_index(fib_entry) != src->u.adj.fesa_cover); |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 219 | |
Neale Ranns | 2303cb1 | 2018-02-21 04:57:17 -0800 | [diff] [blame] | 220 | cover = fib_entry_get(src->u.adj.fesa_cover); |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 221 | |
| 222 | ASSERT(cover != fib_entry); |
| 223 | |
Neale Ranns | 2303cb1 | 2018-02-21 04:57:17 -0800 | [diff] [blame] | 224 | src->u.adj.fesa_sibling = |
Neale Ranns | 8142499 | 2017-05-18 03:03:22 -0700 | [diff] [blame] | 225 | fib_entry_cover_track(cover, |
| 226 | fib_entry_get_index(fib_entry)); |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 227 | |
| 228 | /* |
Neale Ranns | 3983ac2 | 2017-03-10 11:53:27 -0800 | [diff] [blame] | 229 | * if the cover is attached on the same interface as this adj source then |
| 230 | * install the FIB entry via the adj. otherwise install a drop. |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 231 | * This prevents ARP/ND entries that on interface X that do not belong |
| 232 | * on X's subnet from being added to the FIB. To do so would allow |
| 233 | * nefarious gratuitous ARP requests from attracting traffic to the sender. |
| 234 | * |
| 235 | * and yes, I really do mean attached and not connected. |
| 236 | * this abomination; |
| 237 | * ip route add 10.0.0.0/24 Eth0 |
| 238 | * is attached. and we want adj-fibs to install on Eth0. |
| 239 | */ |
Neale Ranns | f6a9ec5 | 2019-06-25 11:38:37 +0000 | [diff] [blame] | 240 | if (FIB_ENTRY_FLAG_ATTACHED & fib_entry_get_flags_i(cover) || |
| 241 | (FIB_ENTRY_FLAG_ATTACHED & fib_entry_get_flags_for_source(src->u.adj.fesa_cover, |
| 242 | FIB_SOURCE_INTERFACE))) |
Neale Ranns | 3983ac2 | 2017-03-10 11:53:27 -0800 | [diff] [blame] | 243 | { |
Neale Ranns | 8142499 | 2017-05-18 03:03:22 -0700 | [diff] [blame] | 244 | fib_entry_src_path_list_walk_cxt_t ctx = { |
Neale Ranns | 2303cb1 | 2018-02-21 04:57:17 -0800 | [diff] [blame] | 245 | .cover_itf = fib_entry_get_resolving_interface(src->u.adj.fesa_cover), |
Neale Ranns | 8142499 | 2017-05-18 03:03:22 -0700 | [diff] [blame] | 246 | .flags = FIB_PATH_EXT_ADJ_FLAG_NONE, |
| 247 | .src = src, |
| 248 | }; |
Neale Ranns | 3983ac2 | 2017-03-10 11:53:27 -0800 | [diff] [blame] | 249 | |
Neale Ranns | 8142499 | 2017-05-18 03:03:22 -0700 | [diff] [blame] | 250 | fib_path_list_walk(src->fes_pl, |
| 251 | fib_entry_src_adj_path_list_walk, |
| 252 | &ctx); |
Neale Ranns | 3983ac2 | 2017-03-10 11:53:27 -0800 | [diff] [blame] | 253 | |
Neale Ranns | 8142499 | 2017-05-18 03:03:22 -0700 | [diff] [blame] | 254 | /* |
| 255 | * active the entry is one of the paths refines the cover. |
| 256 | */ |
| 257 | return (FIB_PATH_EXT_ADJ_FLAG_REFINES_COVER & ctx.flags); |
Neale Ranns | 3983ac2 | 2017-03-10 11:53:27 -0800 | [diff] [blame] | 258 | } |
| 259 | return (0); |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 260 | } |
| 261 | |
| 262 | /* |
Neale Ranns | 8954199 | 2017-04-06 04:41:02 -0700 | [diff] [blame] | 263 | * Source re-activate. |
| 264 | * Called when the source path lit has changed and the source is still |
| 265 | * the best source |
| 266 | */ |
| 267 | static int |
| 268 | fib_entry_src_adj_reactivate (fib_entry_src_t *src, |
| 269 | const fib_entry_t *fib_entry) |
| 270 | { |
| 271 | fib_entry_src_path_list_walk_cxt_t ctx = { |
Neale Ranns | 2303cb1 | 2018-02-21 04:57:17 -0800 | [diff] [blame] | 272 | .cover_itf = fib_entry_get_resolving_interface(src->u.adj.fesa_cover), |
Neale Ranns | 8954199 | 2017-04-06 04:41:02 -0700 | [diff] [blame] | 273 | .flags = FIB_PATH_EXT_ADJ_FLAG_NONE, |
| 274 | .src = src, |
| 275 | }; |
| 276 | |
| 277 | fib_path_list_walk(src->fes_pl, |
| 278 | fib_entry_src_adj_path_list_walk, |
| 279 | &ctx); |
| 280 | |
| 281 | return (FIB_PATH_EXT_ADJ_FLAG_REFINES_COVER & ctx.flags); |
| 282 | } |
| 283 | |
| 284 | /* |
Neale Ranns | 8142499 | 2017-05-18 03:03:22 -0700 | [diff] [blame] | 285 | * Source Deactivate. |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 286 | * Called when the source is no longer best source on the entry |
| 287 | */ |
| 288 | static void |
| 289 | fib_entry_src_adj_deactivate (fib_entry_src_t *src, |
Neale Ranns | 8142499 | 2017-05-18 03:03:22 -0700 | [diff] [blame] | 290 | const fib_entry_t *fib_entry) |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 291 | { |
| 292 | fib_entry_t *cover; |
| 293 | |
| 294 | /* |
Paul Vinciguerra | 8feeaff | 2019-03-27 11:25:48 -0700 | [diff] [blame] | 295 | * remove the dependency on the covering entry |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 296 | */ |
Neale Ranns | d482336 | 2018-12-23 08:57:27 -0800 | [diff] [blame] | 297 | if (FIB_NODE_INDEX_INVALID == src->u.adj.fesa_cover) |
| 298 | { |
| 299 | /* |
| 300 | * this is the case if the entry is in the non-forwarding trie |
| 301 | */ |
| 302 | return; |
| 303 | } |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 304 | |
Neale Ranns | d482336 | 2018-12-23 08:57:27 -0800 | [diff] [blame] | 305 | cover = fib_entry_get(src->u.adj.fesa_cover); |
Neale Ranns | 2303cb1 | 2018-02-21 04:57:17 -0800 | [diff] [blame] | 306 | fib_entry_cover_untrack(cover, src->u.adj.fesa_sibling); |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 307 | |
| 308 | /* |
| 309 | * tell the cover this entry no longer needs exporting |
| 310 | */ |
| 311 | fib_attached_export_covered_removed(cover, fib_entry_get_index(fib_entry)); |
| 312 | |
Neale Ranns | 2303cb1 | 2018-02-21 04:57:17 -0800 | [diff] [blame] | 313 | src->u.adj.fesa_cover = FIB_NODE_INDEX_INVALID; |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 314 | } |
| 315 | |
| 316 | static u8* |
| 317 | fib_entry_src_adj_format (fib_entry_src_t *src, |
Neale Ranns | 8142499 | 2017-05-18 03:03:22 -0700 | [diff] [blame] | 318 | u8* s) |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 319 | { |
Neale Ranns | 2303cb1 | 2018-02-21 04:57:17 -0800 | [diff] [blame] | 320 | return (format(s, " cover:%d", src->u.adj.fesa_cover)); |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 321 | } |
| 322 | |
| 323 | static void |
| 324 | fib_entry_src_adj_installed (fib_entry_src_t *src, |
Neale Ranns | 8142499 | 2017-05-18 03:03:22 -0700 | [diff] [blame] | 325 | const fib_entry_t *fib_entry) |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 326 | { |
| 327 | /* |
| 328 | * The adj source now rules! poke our cover to get exported |
| 329 | */ |
| 330 | fib_entry_t *cover; |
| 331 | |
Neale Ranns | 2303cb1 | 2018-02-21 04:57:17 -0800 | [diff] [blame] | 332 | ASSERT(FIB_NODE_INDEX_INVALID != src->u.adj.fesa_cover); |
| 333 | cover = fib_entry_get(src->u.adj.fesa_cover); |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 334 | |
| 335 | fib_attached_export_covered_added(cover, |
Neale Ranns | 8142499 | 2017-05-18 03:03:22 -0700 | [diff] [blame] | 336 | fib_entry_get_index(fib_entry)); |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 337 | } |
| 338 | |
| 339 | static fib_entry_src_cover_res_t |
| 340 | fib_entry_src_adj_cover_change (fib_entry_src_t *src, |
Neale Ranns | 8142499 | 2017-05-18 03:03:22 -0700 | [diff] [blame] | 341 | const fib_entry_t *fib_entry) |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 342 | { |
| 343 | fib_entry_src_cover_res_t res = { |
Neale Ranns | 8142499 | 2017-05-18 03:03:22 -0700 | [diff] [blame] | 344 | .install = !0, |
| 345 | .bw_reason = FIB_NODE_BW_REASON_FLAG_NONE, |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 346 | }; |
| 347 | |
| 348 | fib_entry_src_adj_deactivate(src, fib_entry); |
| 349 | |
| 350 | res.install = fib_entry_src_adj_activate(src, fib_entry); |
| 351 | |
| 352 | if (res.install) { |
Neale Ranns | 8142499 | 2017-05-18 03:03:22 -0700 | [diff] [blame] | 353 | /* |
| 354 | * ADJ fib can install |
| 355 | */ |
| 356 | res.bw_reason = FIB_NODE_BW_REASON_FLAG_EVALUATE; |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 357 | } |
| 358 | |
Neale Ranns | 710071b | 2018-09-24 12:36:26 +0000 | [diff] [blame] | 359 | FIB_ENTRY_DBG(fib_entry, "adj-src-cover-changed"); |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 360 | return (res); |
| 361 | } |
| 362 | |
| 363 | /* |
| 364 | * fib_entry_src_adj_cover_update |
| 365 | */ |
| 366 | static fib_entry_src_cover_res_t |
| 367 | fib_entry_src_adj_cover_update (fib_entry_src_t *src, |
| 368 | const fib_entry_t *fib_entry) |
| 369 | { |
| 370 | /* |
| 371 | * the cover has updated, i.e. its forwarding or flags |
Paul Vinciguerra | 8feeaff | 2019-03-27 11:25:48 -0700 | [diff] [blame] | 372 | * have changed. don't deactivate/activate here, since this |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 373 | * prefix is updated during the covers walk. |
| 374 | */ |
| 375 | fib_entry_src_cover_res_t res = { |
Neale Ranns | 8142499 | 2017-05-18 03:03:22 -0700 | [diff] [blame] | 376 | .install = !0, |
| 377 | .bw_reason = FIB_NODE_BW_REASON_FLAG_NONE, |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 378 | }; |
| 379 | fib_entry_t *cover; |
| 380 | |
Neale Ranns | 2303cb1 | 2018-02-21 04:57:17 -0800 | [diff] [blame] | 381 | ASSERT(FIB_NODE_INDEX_INVALID != src->u.adj.fesa_cover); |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 382 | |
Neale Ranns | 2303cb1 | 2018-02-21 04:57:17 -0800 | [diff] [blame] | 383 | cover = fib_entry_get(src->u.adj.fesa_cover); |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 384 | |
| 385 | res.install = (FIB_ENTRY_FLAG_ATTACHED & fib_entry_get_flags_i(cover)); |
| 386 | |
Neale Ranns | 710071b | 2018-09-24 12:36:26 +0000 | [diff] [blame] | 387 | FIB_ENTRY_DBG(fib_entry, "adj-src-cover-updated"); |
| 388 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 389 | return (res); |
| 390 | } |
| 391 | |
| 392 | const static fib_entry_src_vft_t adj_src_vft = { |
| 393 | .fesv_init = fib_entry_src_adj_init, |
| 394 | .fesv_path_swap = fib_entry_src_adj_path_swap, |
Neale Ranns | 8142499 | 2017-05-18 03:03:22 -0700 | [diff] [blame] | 395 | .fesv_path_add = fib_entry_src_adj_path_add, |
| 396 | .fesv_path_remove = fib_entry_src_adj_path_remove, |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 397 | .fesv_remove = fib_entry_src_adj_remove, |
| 398 | .fesv_activate = fib_entry_src_adj_activate, |
| 399 | .fesv_deactivate = fib_entry_src_adj_deactivate, |
Neale Ranns | 8954199 | 2017-04-06 04:41:02 -0700 | [diff] [blame] | 400 | .fesv_reactivate = fib_entry_src_adj_reactivate, |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 401 | .fesv_format = fib_entry_src_adj_format, |
| 402 | .fesv_installed = fib_entry_src_adj_installed, |
| 403 | .fesv_cover_change = fib_entry_src_adj_cover_change, |
| 404 | .fesv_cover_update = fib_entry_src_adj_cover_update, |
| 405 | }; |
| 406 | |
| 407 | void |
| 408 | fib_entry_src_adj_register (void) |
| 409 | { |
| 410 | fib_entry_src_register(FIB_SOURCE_ADJ, &adj_src_vft); |
| 411 | } |