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Commit | Line | Data |
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718e3744 | 1 | /* BGP nexthop scan |
896014f4 DL |
2 | * Copyright (C) 2000 Kunihiro Ishiguro |
3 | * | |
4 | * This file is part of GNU Zebra. | |
5 | * | |
6 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2, or (at your option) any | |
9 | * later version. | |
10 | * | |
11 | * GNU Zebra is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License along | |
17 | * with this program; see the file COPYING; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
718e3744 | 20 | |
21 | #include <zebra.h> | |
22 | ||
23 | #include "command.h" | |
24 | #include "thread.h" | |
25 | #include "prefix.h" | |
26 | #include "zclient.h" | |
27 | #include "stream.h" | |
28 | #include "network.h" | |
29 | #include "log.h" | |
30 | #include "memory.h" | |
10f9bf3f JBD |
31 | #include "hash.h" |
32 | #include "jhash.h" | |
fb018d25 | 33 | #include "nexthop.h" |
3f9c7369 | 34 | #include "queue.h" |
039f3a34 | 35 | #include "filter.h" |
718e3744 | 36 | |
37 | #include "bgpd/bgpd.h" | |
38 | #include "bgpd/bgp_table.h" | |
39 | #include "bgpd/bgp_route.h" | |
40 | #include "bgpd/bgp_attr.h" | |
41 | #include "bgpd/bgp_nexthop.h" | |
fb018d25 | 42 | #include "bgpd/bgp_nht.h" |
718e3744 | 43 | #include "bgpd/bgp_debug.h" |
44 | #include "bgpd/bgp_damp.h" | |
8ffedcea | 45 | #include "bgpd/bgp_fsm.h" |
8386ac43 | 46 | #include "bgpd/bgp_vty.h" |
5d76a53d | 47 | #include "bgpd/bgp_rd.h" |
718e3744 | 48 | |
330cec3d DS |
49 | DEFINE_MTYPE_STATIC(BGPD, MARTIAN_STRING, "BGP Martian Address Intf String"); |
50 | ||
d62a17ae | 51 | char *bnc_str(struct bgp_nexthop_cache *bnc, char *buf, int size) |
fb018d25 | 52 | { |
b54892e0 | 53 | prefix2str(bgp_node_get_prefix(bnc->node), buf, size); |
d62a17ae | 54 | return buf; |
fb018d25 DS |
55 | } |
56 | ||
d62a17ae | 57 | void bnc_nexthop_free(struct bgp_nexthop_cache *bnc) |
718e3744 | 58 | { |
d62a17ae | 59 | nexthops_free(bnc->nexthop); |
718e3744 | 60 | } |
61 | ||
d62a17ae | 62 | struct bgp_nexthop_cache *bnc_new(void) |
718e3744 | 63 | { |
d62a17ae | 64 | struct bgp_nexthop_cache *bnc; |
fb018d25 | 65 | |
d62a17ae | 66 | bnc = XCALLOC(MTYPE_BGP_NEXTHOP_CACHE, |
67 | sizeof(struct bgp_nexthop_cache)); | |
68 | LIST_INIT(&(bnc->paths)); | |
69 | return bnc; | |
718e3744 | 70 | } |
71 | ||
d62a17ae | 72 | void bnc_free(struct bgp_nexthop_cache *bnc) |
718e3744 | 73 | { |
d62a17ae | 74 | bnc_nexthop_free(bnc); |
75 | XFREE(MTYPE_BGP_NEXTHOP_CACHE, bnc); | |
718e3744 | 76 | } |
6b0655a2 | 77 | |
718e3744 | 78 | /* Reset and free all BGP nexthop cache. */ |
d62a17ae | 79 | static void bgp_nexthop_cache_reset(struct bgp_table *table) |
718e3744 | 80 | { |
d62a17ae | 81 | struct bgp_node *rn; |
82 | struct bgp_nexthop_cache *bnc; | |
83 | ||
14315f2d | 84 | for (rn = bgp_table_top(table); rn; rn = bgp_route_next(rn)) { |
5b8d32bd | 85 | bnc = bgp_node_get_bgp_nexthop_info(rn); |
3d111939 DS |
86 | if (!bnc) |
87 | continue; | |
7f040da1 | 88 | |
3d111939 DS |
89 | while (!LIST_EMPTY(&(bnc->paths))) { |
90 | struct bgp_path_info *path = LIST_FIRST(&(bnc->paths)); | |
7f040da1 | 91 | |
3d111939 | 92 | path_nh_map(path, bnc, false); |
d62a17ae | 93 | } |
3d111939 DS |
94 | |
95 | bnc_free(bnc); | |
5b8d32bd | 96 | bgp_node_set_bgp_nexthop_info(rn, NULL); |
3d111939 | 97 | bgp_unlock_node(rn); |
14315f2d | 98 | } |
718e3744 | 99 | } |
100 | ||
db0e1937 MK |
101 | static void *bgp_tip_hash_alloc(void *p) |
102 | { | |
0291c246 MK |
103 | const struct in_addr *val = (const struct in_addr *)p; |
104 | struct tip_addr *addr; | |
db0e1937 MK |
105 | |
106 | addr = XMALLOC(MTYPE_TIP_ADDR, sizeof(struct tip_addr)); | |
107 | addr->refcnt = 0; | |
108 | addr->addr.s_addr = val->s_addr; | |
109 | ||
110 | return addr; | |
111 | } | |
112 | ||
113 | static void bgp_tip_hash_free(void *addr) | |
114 | { | |
115 | XFREE(MTYPE_TIP_ADDR, addr); | |
116 | } | |
117 | ||
d8b87afe | 118 | static unsigned int bgp_tip_hash_key_make(const void *p) |
db0e1937 | 119 | { |
0291c246 | 120 | const struct tip_addr *addr = p; |
db0e1937 MK |
121 | |
122 | return jhash_1word(addr->addr.s_addr, 0); | |
123 | } | |
124 | ||
74df8d6d | 125 | static bool bgp_tip_hash_cmp(const void *p1, const void *p2) |
db0e1937 | 126 | { |
0291c246 MK |
127 | const struct tip_addr *addr1 = p1; |
128 | const struct tip_addr *addr2 = p2; | |
db0e1937 MK |
129 | |
130 | return addr1->addr.s_addr == addr2->addr.s_addr; | |
131 | } | |
132 | ||
133 | void bgp_tip_hash_init(struct bgp *bgp) | |
134 | { | |
996c9314 | 135 | bgp->tip_hash = hash_create(bgp_tip_hash_key_make, bgp_tip_hash_cmp, |
3f65c5b1 | 136 | "BGP TIP hash"); |
db0e1937 MK |
137 | } |
138 | ||
139 | void bgp_tip_hash_destroy(struct bgp *bgp) | |
140 | { | |
141 | if (bgp->tip_hash == NULL) | |
142 | return; | |
143 | hash_clean(bgp->tip_hash, bgp_tip_hash_free); | |
144 | hash_free(bgp->tip_hash); | |
145 | bgp->tip_hash = NULL; | |
146 | } | |
147 | ||
148 | void bgp_tip_add(struct bgp *bgp, struct in_addr *tip) | |
149 | { | |
0291c246 MK |
150 | struct tip_addr tmp; |
151 | struct tip_addr *addr; | |
db0e1937 MK |
152 | |
153 | tmp.addr = *tip; | |
154 | ||
155 | addr = hash_get(bgp->tip_hash, &tmp, bgp_tip_hash_alloc); | |
156 | if (!addr) | |
157 | return; | |
158 | ||
159 | addr->refcnt++; | |
160 | } | |
161 | ||
162 | void bgp_tip_del(struct bgp *bgp, struct in_addr *tip) | |
163 | { | |
0291c246 MK |
164 | struct tip_addr tmp; |
165 | struct tip_addr *addr; | |
db0e1937 MK |
166 | |
167 | tmp.addr = *tip; | |
168 | ||
169 | addr = hash_lookup(bgp->tip_hash, &tmp); | |
170 | /* may have been deleted earlier by bgp_interface_down() */ | |
171 | if (addr == NULL) | |
172 | return; | |
173 | ||
174 | addr->refcnt--; | |
175 | ||
176 | if (addr->refcnt == 0) { | |
177 | hash_release(bgp->tip_hash, addr); | |
178 | XFREE(MTYPE_TIP_ADDR, addr); | |
179 | } | |
180 | } | |
10f9bf3f | 181 | |
af97a18b DS |
182 | /* BGP own address structure */ |
183 | struct bgp_addr { | |
2ec802d1 | 184 | struct prefix p; |
f4c2fb93 | 185 | struct list *ifp_name_list; |
af97a18b DS |
186 | }; |
187 | ||
e3b78da8 | 188 | static void show_address_entry(struct hash_bucket *bucket, void *args) |
af97a18b DS |
189 | { |
190 | struct vty *vty = (struct vty *)args; | |
e3b78da8 | 191 | struct bgp_addr *addr = (struct bgp_addr *)bucket->data; |
f4c2fb93 DS |
192 | char *name; |
193 | struct listnode *node; | |
949b0f24 | 194 | char str[INET6_ADDRSTRLEN] = {0}; |
195 | ||
e61f7c0a | 196 | vty_out(vty, "addr: %s, count: %d : ", |
2ec802d1 | 197 | inet_ntop(addr->p.family, &(addr->p.u.prefix), |
e61f7c0a DS |
198 | str, INET6_ADDRSTRLEN), |
199 | addr->ifp_name_list->count); | |
f4c2fb93 DS |
200 | |
201 | for (ALL_LIST_ELEMENTS_RO(addr->ifp_name_list, node, name)) { | |
202 | vty_out(vty, " %s,", name); | |
203 | } | |
204 | ||
205 | vty_out(vty, "\n"); | |
af97a18b DS |
206 | } |
207 | ||
208 | void bgp_nexthop_show_address_hash(struct vty *vty, struct bgp *bgp) | |
209 | { | |
210 | hash_iterate(bgp->address_hash, | |
e3b78da8 | 211 | (void (*)(struct hash_bucket *, void *))show_address_entry, |
af97a18b DS |
212 | vty); |
213 | } | |
214 | ||
f4c2fb93 DS |
215 | static void bgp_address_hash_string_del(void *val) |
216 | { | |
217 | char *data = val; | |
218 | ||
330cec3d | 219 | XFREE(MTYPE_MARTIAN_STRING, data); |
f4c2fb93 DS |
220 | } |
221 | ||
d62a17ae | 222 | static void *bgp_address_hash_alloc(void *p) |
10f9bf3f | 223 | { |
949b0f24 | 224 | struct bgp_addr *copy_addr = p; |
225 | struct bgp_addr *addr = NULL; | |
10f9bf3f | 226 | |
d62a17ae | 227 | addr = XMALLOC(MTYPE_BGP_ADDR, sizeof(struct bgp_addr)); |
2ec802d1 | 228 | prefix_copy(&addr->p, ©_addr->p); |
10f9bf3f | 229 | |
f4c2fb93 DS |
230 | addr->ifp_name_list = list_new(); |
231 | addr->ifp_name_list->del = bgp_address_hash_string_del; | |
232 | ||
d62a17ae | 233 | return addr; |
10f9bf3f JBD |
234 | } |
235 | ||
f4c2fb93 | 236 | static void bgp_address_hash_free(void *data) |
37d361e7 | 237 | { |
f4c2fb93 DS |
238 | struct bgp_addr *addr = data; |
239 | ||
6a154c88 | 240 | list_delete(&addr->ifp_name_list); |
d62a17ae | 241 | XFREE(MTYPE_BGP_ADDR, addr); |
37d361e7 RW |
242 | } |
243 | ||
d8b87afe | 244 | static unsigned int bgp_address_hash_key_make(const void *p) |
10f9bf3f | 245 | { |
d62a17ae | 246 | const struct bgp_addr *addr = p; |
10f9bf3f | 247 | |
2ec802d1 | 248 | return prefix_hash_key(&addr->p); |
10f9bf3f JBD |
249 | } |
250 | ||
74df8d6d | 251 | static bool bgp_address_hash_cmp(const void *p1, const void *p2) |
10f9bf3f | 252 | { |
d62a17ae | 253 | const struct bgp_addr *addr1 = p1; |
254 | const struct bgp_addr *addr2 = p2; | |
10f9bf3f | 255 | |
2ec802d1 | 256 | return prefix_same(&addr1->p, &addr2->p); |
10f9bf3f JBD |
257 | } |
258 | ||
d62a17ae | 259 | void bgp_address_init(struct bgp *bgp) |
10f9bf3f | 260 | { |
996c9314 LB |
261 | bgp->address_hash = |
262 | hash_create(bgp_address_hash_key_make, bgp_address_hash_cmp, | |
949b0f24 | 263 | "BGP Connected Address Hash"); |
10f9bf3f JBD |
264 | } |
265 | ||
d62a17ae | 266 | void bgp_address_destroy(struct bgp *bgp) |
bb86c601 | 267 | { |
d62a17ae | 268 | if (bgp->address_hash == NULL) |
269 | return; | |
270 | hash_clean(bgp->address_hash, bgp_address_hash_free); | |
271 | hash_free(bgp->address_hash); | |
272 | bgp->address_hash = NULL; | |
bb86c601 LB |
273 | } |
274 | ||
f4c2fb93 DS |
275 | static void bgp_address_add(struct bgp *bgp, struct connected *ifc, |
276 | struct prefix *p) | |
10f9bf3f | 277 | { |
d62a17ae | 278 | struct bgp_addr tmp; |
279 | struct bgp_addr *addr; | |
f4c2fb93 DS |
280 | struct listnode *node; |
281 | char *name; | |
10f9bf3f | 282 | |
2ec802d1 | 283 | tmp.p = *p; |
949b0f24 | 284 | |
2ec802d1 DS |
285 | if (tmp.p.family == AF_INET) |
286 | tmp.p.prefixlen = IPV4_MAX_BITLEN; | |
287 | else if (tmp.p.family == AF_INET6) | |
288 | tmp.p.prefixlen = IPV6_MAX_BITLEN; | |
10f9bf3f | 289 | |
d62a17ae | 290 | addr = hash_get(bgp->address_hash, &tmp, bgp_address_hash_alloc); |
5ce10e92 | 291 | |
f4c2fb93 DS |
292 | for (ALL_LIST_ELEMENTS_RO(addr->ifp_name_list, node, name)) { |
293 | if (strcmp(ifc->ifp->name, name) == 0) | |
294 | break; | |
295 | } | |
296 | if (!node) { | |
330cec3d | 297 | name = XSTRDUP(MTYPE_MARTIAN_STRING, ifc->ifp->name); |
f4c2fb93 DS |
298 | listnode_add(addr->ifp_name_list, name); |
299 | } | |
10f9bf3f JBD |
300 | } |
301 | ||
f4c2fb93 DS |
302 | static void bgp_address_del(struct bgp *bgp, struct connected *ifc, |
303 | struct prefix *p) | |
10f9bf3f | 304 | { |
d62a17ae | 305 | struct bgp_addr tmp; |
306 | struct bgp_addr *addr; | |
f4c2fb93 DS |
307 | struct listnode *node; |
308 | char *name; | |
10f9bf3f | 309 | |
2ec802d1 | 310 | tmp.p = *p; |
949b0f24 | 311 | |
2ec802d1 DS |
312 | if (tmp.p.family == AF_INET) |
313 | tmp.p.prefixlen = IPV4_MAX_BITLEN; | |
314 | else if (tmp.p.family == AF_INET6) | |
315 | tmp.p.prefixlen = IPV6_MAX_BITLEN; | |
10f9bf3f | 316 | |
d62a17ae | 317 | addr = hash_lookup(bgp->address_hash, &tmp); |
318 | /* may have been deleted earlier by bgp_interface_down() */ | |
319 | if (addr == NULL) | |
320 | return; | |
9e47abd8 | 321 | |
f4c2fb93 DS |
322 | for (ALL_LIST_ELEMENTS_RO(addr->ifp_name_list, node, name)) { |
323 | if (strcmp(ifc->ifp->name, name) == 0) | |
324 | break; | |
325 | } | |
10f9bf3f | 326 | |
b9129915 | 327 | if (node) { |
f4c2fb93 | 328 | list_delete_node(addr->ifp_name_list, node); |
b9129915 DS |
329 | XFREE(MTYPE_MARTIAN_STRING, name); |
330 | } | |
f4c2fb93 DS |
331 | |
332 | if (addr->ifp_name_list->count == 0) { | |
d62a17ae | 333 | hash_release(bgp->address_hash, addr); |
6a154c88 | 334 | list_delete(&addr->ifp_name_list); |
d62a17ae | 335 | XFREE(MTYPE_BGP_ADDR, addr); |
336 | } | |
10f9bf3f JBD |
337 | } |
338 | ||
6b0655a2 | 339 | |
d62a17ae | 340 | struct bgp_connected_ref { |
341 | unsigned int refcnt; | |
718e3744 | 342 | }; |
343 | ||
d62a17ae | 344 | void bgp_connected_add(struct bgp *bgp, struct connected *ifc) |
718e3744 | 345 | { |
d62a17ae | 346 | struct prefix p; |
347 | struct prefix *addr; | |
348 | struct bgp_node *rn; | |
349 | struct bgp_connected_ref *bc; | |
350 | struct listnode *node, *nnode; | |
351 | struct peer *peer; | |
352 | ||
353 | addr = ifc->address; | |
354 | ||
355 | p = *(CONNECTED_PREFIX(ifc)); | |
356 | if (addr->family == AF_INET) { | |
357 | apply_mask_ipv4((struct prefix_ipv4 *)&p); | |
358 | ||
359 | if (prefix_ipv4_any((struct prefix_ipv4 *)&p)) | |
360 | return; | |
361 | ||
f4c2fb93 | 362 | bgp_address_add(bgp, ifc, addr); |
d62a17ae | 363 | |
364 | rn = bgp_node_get(bgp->connected_table[AFI_IP], | |
365 | (struct prefix *)&p); | |
cb8c85ab | 366 | bc = bgp_node_get_bgp_connected_ref_info(rn); |
3d9dbdbe | 367 | if (bc) |
d62a17ae | 368 | bc->refcnt++; |
3d9dbdbe | 369 | else { |
d62a17ae | 370 | bc = XCALLOC(MTYPE_BGP_CONN, |
371 | sizeof(struct bgp_connected_ref)); | |
372 | bc->refcnt = 1; | |
cb8c85ab | 373 | bgp_node_set_bgp_connected_ref_info(rn, bc); |
d62a17ae | 374 | } |
8ffedcea | 375 | |
d62a17ae | 376 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { |
377 | if (peer->conf_if | |
378 | && (strcmp(peer->conf_if, ifc->ifp->name) == 0) | |
379 | && peer->status != Established | |
380 | && !CHECK_FLAG(peer->flags, | |
381 | PEER_FLAG_IFPEER_V6ONLY)) { | |
382 | if (peer_active(peer)) | |
383 | BGP_EVENT_ADD(peer, BGP_Stop); | |
384 | BGP_EVENT_ADD(peer, BGP_Start); | |
385 | } | |
386 | } | |
387 | } else if (addr->family == AF_INET6) { | |
388 | apply_mask_ipv6((struct prefix_ipv6 *)&p); | |
389 | ||
390 | if (IN6_IS_ADDR_UNSPECIFIED(&p.u.prefix6)) | |
391 | return; | |
392 | ||
393 | if (IN6_IS_ADDR_LINKLOCAL(&p.u.prefix6)) | |
394 | return; | |
395 | ||
949b0f24 | 396 | bgp_address_add(bgp, ifc, addr); |
397 | ||
d62a17ae | 398 | rn = bgp_node_get(bgp->connected_table[AFI_IP6], |
399 | (struct prefix *)&p); | |
3d9dbdbe | 400 | |
cb8c85ab | 401 | bc = bgp_node_get_bgp_connected_ref_info(rn); |
3d9dbdbe | 402 | if (bc) |
d62a17ae | 403 | bc->refcnt++; |
3d9dbdbe | 404 | else { |
d62a17ae | 405 | bc = XCALLOC(MTYPE_BGP_CONN, |
406 | sizeof(struct bgp_connected_ref)); | |
407 | bc->refcnt = 1; | |
cb8c85ab | 408 | bgp_node_set_bgp_connected_ref_info(rn, bc); |
d62a17ae | 409 | } |
718e3744 | 410 | } |
718e3744 | 411 | } |
412 | ||
d62a17ae | 413 | void bgp_connected_delete(struct bgp *bgp, struct connected *ifc) |
718e3744 | 414 | { |
d62a17ae | 415 | struct prefix p; |
416 | struct prefix *addr; | |
f6bdc080 | 417 | struct bgp_node *rn = NULL; |
d62a17ae | 418 | struct bgp_connected_ref *bc; |
718e3744 | 419 | |
d62a17ae | 420 | addr = ifc->address; |
718e3744 | 421 | |
d62a17ae | 422 | p = *(CONNECTED_PREFIX(ifc)); |
f6bdc080 | 423 | apply_mask(&p); |
d62a17ae | 424 | if (addr->family == AF_INET) { |
d62a17ae | 425 | if (prefix_ipv4_any((struct prefix_ipv4 *)&p)) |
426 | return; | |
718e3744 | 427 | |
f4c2fb93 | 428 | bgp_address_del(bgp, ifc, addr); |
10f9bf3f | 429 | |
d62a17ae | 430 | rn = bgp_node_lookup(bgp->connected_table[AFI_IP], &p); |
d62a17ae | 431 | } else if (addr->family == AF_INET6) { |
d62a17ae | 432 | if (IN6_IS_ADDR_UNSPECIFIED(&p.u.prefix6)) |
433 | return; | |
434 | ||
435 | if (IN6_IS_ADDR_LINKLOCAL(&p.u.prefix6)) | |
436 | return; | |
437 | ||
949b0f24 | 438 | bgp_address_del(bgp, ifc, addr); |
439 | ||
c4efd0f4 | 440 | rn = bgp_node_lookup(bgp->connected_table[AFI_IP6], &p); |
f6bdc080 | 441 | } |
d62a17ae | 442 | |
f6bdc080 DS |
443 | if (!rn) |
444 | return; | |
445 | ||
cb8c85ab | 446 | bc = bgp_node_get_bgp_connected_ref_info(rn); |
f6bdc080 DS |
447 | bc->refcnt--; |
448 | if (bc->refcnt == 0) { | |
449 | XFREE(MTYPE_BGP_CONN, bc); | |
cb8c85ab | 450 | bgp_node_set_bgp_connected_ref_info(rn, NULL); |
718e3744 | 451 | } |
f6bdc080 DS |
452 | bgp_unlock_node(rn); |
453 | bgp_unlock_node(rn); | |
718e3744 | 454 | } |
455 | ||
3292693b DS |
456 | static void bgp_connected_cleanup(struct route_table *table, |
457 | struct route_node *rn) | |
458 | { | |
459 | struct bgp_connected_ref *bc; | |
3d9dbdbe | 460 | struct bgp_node *bn = bgp_node_from_rnode(rn); |
3292693b | 461 | |
cb8c85ab | 462 | bc = bgp_node_get_bgp_connected_ref_info(bn); |
3292693b DS |
463 | if (!bc) |
464 | return; | |
465 | ||
466 | bc->refcnt--; | |
467 | if (bc->refcnt == 0) { | |
468 | XFREE(MTYPE_BGP_CONN, bc); | |
cb8c85ab | 469 | bgp_node_set_bgp_connected_ref_info(bn, NULL); |
3292693b DS |
470 | } |
471 | } | |
472 | ||
3dc339cd DA |
473 | bool bgp_nexthop_self(struct bgp *bgp, afi_t afi, uint8_t type, |
474 | uint8_t sub_type, struct attr *attr, struct bgp_node *rn) | |
718e3744 | 475 | { |
af34d2da | 476 | uint8_t new_afi = afi == AFI_IP ? AF_INET : AF_INET6; |
8c5c49ac | 477 | struct bgp_addr tmp_addr = {{0}}, *addr = NULL; |
949b0f24 | 478 | struct tip_addr tmp_tip, *tip = NULL; |
b54892e0 | 479 | const struct prefix *p = bgp_node_get_prefix(rn); |
c4fb2504 DS |
480 | bool is_bgp_static_route = |
481 | ((type == ZEBRA_ROUTE_BGP) && (sub_type == BGP_ROUTE_STATIC)) | |
949b0f24 | 482 | ? true |
483 | : false; | |
484 | ||
485 | if (!is_bgp_static_route) | |
af34d2da | 486 | new_afi = BGP_ATTR_NEXTHOP_AFI_IP6(attr) ? AF_INET6 : AF_INET; |
949b0f24 | 487 | |
e26c3055 | 488 | tmp_addr.p.family = new_afi; |
949b0f24 | 489 | switch (new_afi) { |
af34d2da | 490 | case AF_INET: |
949b0f24 | 491 | if (is_bgp_static_route) { |
b54892e0 DS |
492 | tmp_addr.p.u.prefix4 = p->u.prefix4; |
493 | tmp_addr.p.prefixlen = p->prefixlen; | |
949b0f24 | 494 | } else { |
495 | /* Here we need to find out which nexthop to be used*/ | |
c4fb2504 | 496 | if (attr->flag & ATTR_FLAG_BIT(BGP_ATTR_NEXT_HOP)) { |
e26c3055 DS |
497 | tmp_addr.p.u.prefix4 = attr->nexthop; |
498 | tmp_addr.p.prefixlen = IPV4_MAX_BITLEN; | |
c4fb2504 DS |
499 | } else if ((attr->mp_nexthop_len) |
500 | && ((attr->mp_nexthop_len | |
501 | == BGP_ATTR_NHLEN_IPV4) | |
502 | || (attr->mp_nexthop_len | |
503 | == BGP_ATTR_NHLEN_VPNV4))) { | |
e26c3055 | 504 | tmp_addr.p.u.prefix4 = |
949b0f24 | 505 | attr->mp_nexthop_global_in; |
e26c3055 | 506 | tmp_addr.p.prefixlen = IPV4_MAX_BITLEN; |
949b0f24 | 507 | } else |
3dc339cd | 508 | return false; |
949b0f24 | 509 | } |
510 | break; | |
af34d2da | 511 | case AF_INET6: |
949b0f24 | 512 | if (is_bgp_static_route) { |
b54892e0 DS |
513 | tmp_addr.p.u.prefix6 = p->u.prefix6; |
514 | tmp_addr.p.prefixlen = p->prefixlen; | |
949b0f24 | 515 | } else { |
e26c3055 DS |
516 | tmp_addr.p.u.prefix6 = attr->mp_nexthop_global; |
517 | tmp_addr.p.prefixlen = IPV6_MAX_BITLEN; | |
949b0f24 | 518 | } |
519 | break; | |
520 | default: | |
521 | break; | |
522 | } | |
10f9bf3f | 523 | |
949b0f24 | 524 | addr = hash_lookup(bgp->address_hash, &tmp_addr); |
d62a17ae | 525 | if (addr) |
3dc339cd | 526 | return true; |
718e3744 | 527 | |
af34d2da | 528 | if (new_afi == AF_INET) { |
949b0f24 | 529 | memset(&tmp_tip, 0, sizeof(struct tip_addr)); |
530 | tmp_tip.addr = attr->nexthop; | |
531 | ||
532 | if (attr->flag & ATTR_FLAG_BIT(BGP_ATTR_NEXT_HOP)) { | |
533 | tmp_tip.addr = attr->nexthop; | |
534 | } else if ((attr->mp_nexthop_len) && | |
2ec802d1 DS |
535 | ((attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV4) |
536 | || (attr->mp_nexthop_len == BGP_ATTR_NHLEN_VPNV4))) { | |
949b0f24 | 537 | tmp_tip.addr = attr->mp_nexthop_global_in; |
538 | } | |
539 | ||
540 | tip = hash_lookup(bgp->tip_hash, &tmp_tip); | |
541 | if (tip) | |
3dc339cd | 542 | return true; |
949b0f24 | 543 | } |
db0e1937 | 544 | |
3dc339cd | 545 | return false; |
718e3744 | 546 | } |
6b0655a2 | 547 | |
3dc339cd | 548 | bool bgp_multiaccess_check_v4(struct in_addr nexthop, struct peer *peer) |
718e3744 | 549 | { |
d62a17ae | 550 | struct bgp_node *rn1; |
551 | struct bgp_node *rn2; | |
552 | struct prefix p; | |
553 | int ret; | |
554 | ||
555 | p.family = AF_INET; | |
556 | p.prefixlen = IPV4_MAX_BITLEN; | |
557 | p.u.prefix4 = nexthop; | |
558 | ||
559 | rn1 = bgp_node_match(peer->bgp->connected_table[AFI_IP], &p); | |
560 | if (!rn1) | |
3dc339cd | 561 | return false; |
d62a17ae | 562 | |
563 | p.family = AF_INET; | |
564 | p.prefixlen = IPV4_MAX_BITLEN; | |
565 | p.u.prefix4 = peer->su.sin.sin_addr; | |
566 | ||
567 | rn2 = bgp_node_match(peer->bgp->connected_table[AFI_IP], &p); | |
568 | if (!rn2) { | |
569 | bgp_unlock_node(rn1); | |
3dc339cd | 570 | return false; |
d62a17ae | 571 | } |
718e3744 | 572 | |
3dc339cd | 573 | ret = (rn1 == rn2); |
718e3744 | 574 | |
d62a17ae | 575 | bgp_unlock_node(rn1); |
576 | bgp_unlock_node(rn2); | |
718e3744 | 577 | |
3dc339cd | 578 | return ret; |
718e3744 | 579 | } |
580 | ||
3dc339cd | 581 | bool bgp_multiaccess_check_v6(struct in6_addr nexthop, struct peer *peer) |
737af885 BS |
582 | { |
583 | struct bgp_node *rn1; | |
584 | struct bgp_node *rn2; | |
585 | struct prefix p; | |
586 | int ret; | |
587 | ||
588 | p.family = AF_INET6; | |
589 | p.prefixlen = IPV6_MAX_BITLEN; | |
590 | p.u.prefix6 = nexthop; | |
591 | ||
592 | rn1 = bgp_node_match(peer->bgp->connected_table[AFI_IP6], &p); | |
593 | if (!rn1) | |
3dc339cd | 594 | return false; |
737af885 BS |
595 | |
596 | p.family = AF_INET6; | |
597 | p.prefixlen = IPV6_MAX_BITLEN; | |
598 | p.u.prefix6 = peer->su.sin6.sin6_addr; | |
599 | ||
600 | rn2 = bgp_node_match(peer->bgp->connected_table[AFI_IP6], &p); | |
601 | if (!rn2) { | |
602 | bgp_unlock_node(rn1); | |
3dc339cd | 603 | return false; |
737af885 BS |
604 | } |
605 | ||
3dc339cd | 606 | ret = (rn1 == rn2); |
737af885 BS |
607 | |
608 | bgp_unlock_node(rn1); | |
609 | bgp_unlock_node(rn2); | |
610 | ||
611 | return ret; | |
612 | } | |
613 | ||
3dc339cd DA |
614 | bool bgp_subgrp_multiaccess_check_v6(struct in6_addr nexthop, |
615 | struct update_subgroup *subgrp, | |
616 | struct peer *exclude) | |
737af885 BS |
617 | { |
618 | struct bgp_node *rn1 = NULL, *rn2 = NULL; | |
619 | struct peer_af *paf = NULL; | |
620 | struct prefix p = {0}, np = {0}; | |
621 | struct bgp *bgp = NULL; | |
622 | ||
623 | np.family = AF_INET6; | |
624 | np.prefixlen = IPV6_MAX_BITLEN; | |
625 | np.u.prefix6 = nexthop; | |
626 | ||
627 | p.family = AF_INET; | |
628 | p.prefixlen = IPV6_MAX_BITLEN; | |
629 | ||
630 | bgp = SUBGRP_INST(subgrp); | |
631 | rn1 = bgp_node_match(bgp->connected_table[AFI_IP6], &np); | |
632 | if (!rn1) | |
3dc339cd | 633 | return false; |
737af885 BS |
634 | |
635 | SUBGRP_FOREACH_PEER (subgrp, paf) { | |
a3b72539 | 636 | /* Skip peer we're told to exclude - e.g., source of route. */ |
637 | if (paf->peer == exclude) | |
638 | continue; | |
737af885 BS |
639 | |
640 | p.u.prefix6 = paf->peer->su.sin6.sin6_addr; | |
641 | rn2 = bgp_node_match(bgp->connected_table[AFI_IP6], &p); | |
642 | if (rn1 == rn2) { | |
643 | bgp_unlock_node(rn1); | |
644 | bgp_unlock_node(rn2); | |
3dc339cd | 645 | return true; |
737af885 BS |
646 | } |
647 | ||
648 | if (rn2) | |
649 | bgp_unlock_node(rn2); | |
650 | } | |
651 | ||
652 | bgp_unlock_node(rn1); | |
3dc339cd | 653 | return false; |
737af885 BS |
654 | } |
655 | ||
3dc339cd DA |
656 | bool bgp_subgrp_multiaccess_check_v4(struct in_addr nexthop, |
657 | struct update_subgroup *subgrp, | |
658 | struct peer *exclude) | |
65d4e0c6 DS |
659 | { |
660 | struct bgp_node *rn1, *rn2; | |
661 | struct peer_af *paf; | |
662 | struct prefix p, np; | |
a2b6e694 | 663 | struct bgp *bgp; |
65d4e0c6 DS |
664 | |
665 | np.family = AF_INET; | |
666 | np.prefixlen = IPV4_MAX_BITLEN; | |
667 | np.u.prefix4 = nexthop; | |
668 | ||
669 | p.family = AF_INET; | |
670 | p.prefixlen = IPV4_MAX_BITLEN; | |
671 | ||
65d4e0c6 | 672 | bgp = SUBGRP_INST(subgrp); |
996c9314 | 673 | rn1 = bgp_node_match(bgp->connected_table[AFI_IP], &np); |
65d4e0c6 | 674 | if (!rn1) |
3dc339cd | 675 | return false; |
65d4e0c6 | 676 | |
996c9314 | 677 | SUBGRP_FOREACH_PEER (subgrp, paf) { |
a3b72539 | 678 | /* Skip peer we're told to exclude - e.g., source of route. */ |
679 | if (paf->peer == exclude) | |
680 | continue; | |
681 | ||
65d4e0c6 DS |
682 | p.u.prefix4 = paf->peer->su.sin.sin_addr; |
683 | ||
996c9314 | 684 | rn2 = bgp_node_match(bgp->connected_table[AFI_IP], &p); |
65d4e0c6 DS |
685 | if (rn1 == rn2) { |
686 | bgp_unlock_node(rn1); | |
687 | bgp_unlock_node(rn2); | |
3dc339cd | 688 | return true; |
65d4e0c6 DS |
689 | } |
690 | ||
691 | if (rn2) | |
692 | bgp_unlock_node(rn2); | |
693 | } | |
694 | ||
695 | bgp_unlock_node(rn1); | |
3dc339cd | 696 | return false; |
65d4e0c6 DS |
697 | } |
698 | ||
5d76a53d | 699 | static void bgp_show_nexthop_paths(struct vty *vty, struct bgp *bgp, |
700 | struct bgp_nexthop_cache *bnc) | |
701 | { | |
702 | struct bgp_node *rn; | |
703 | struct bgp_path_info *path; | |
704 | int afi; | |
705 | safi_t safi; | |
706 | struct bgp_table *table; | |
707 | struct bgp *bgp_path; | |
708 | char buf1[BUFSIZ]; | |
709 | ||
710 | vty_out(vty, " Paths:\n"); | |
711 | LIST_FOREACH (path, &(bnc->paths), nh_thread) { | |
712 | rn = path->net; | |
713 | assert(rn && bgp_node_table(rn)); | |
714 | afi = family2afi(rn->p.family); | |
715 | table = bgp_node_table(rn); | |
716 | safi = table->safi; | |
717 | bgp_path = table->bgp; | |
718 | ||
719 | if (rn->prn) { | |
720 | prefix_rd2str((struct prefix_rd *)&rn->prn->p, | |
721 | buf1, sizeof(buf1)); | |
722 | vty_out(vty, " %d/%d %pRN RD %s %s flags 0x%x\n", | |
723 | afi, safi, rn, buf1, bgp_path->name_pretty, path->flags); | |
724 | } else | |
725 | vty_out(vty, " %d/%d %pRN %s flags 0x%x\n", | |
726 | afi, safi, rn, bgp_path->name_pretty, path->flags); | |
727 | } | |
728 | } | |
729 | ||
996c9314 | 730 | static void bgp_show_nexthops_detail(struct vty *vty, struct bgp *bgp, |
e22ac3ee DS |
731 | struct bgp_nexthop_cache *bnc) |
732 | { | |
733 | char buf[PREFIX2STR_BUFFER]; | |
734 | struct nexthop *nexthop; | |
735 | ||
5d76a53d | 736 | for (nexthop = bnc->nexthop; nexthop; nexthop = nexthop->next) { |
e22ac3ee DS |
737 | switch (nexthop->type) { |
738 | case NEXTHOP_TYPE_IPV6: | |
739 | vty_out(vty, " gate %s\n", | |
996c9314 LB |
740 | inet_ntop(AF_INET6, &nexthop->gate.ipv6, buf, |
741 | sizeof(buf))); | |
e22ac3ee DS |
742 | break; |
743 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
744 | vty_out(vty, " gate %s, if %s\n", | |
996c9314 LB |
745 | inet_ntop(AF_INET6, &nexthop->gate.ipv6, buf, |
746 | sizeof(buf)), | |
747 | ifindex2ifname(nexthop->ifindex, bgp->vrf_id)); | |
e22ac3ee DS |
748 | break; |
749 | case NEXTHOP_TYPE_IPV4: | |
750 | vty_out(vty, " gate %s\n", | |
996c9314 LB |
751 | inet_ntop(AF_INET, &nexthop->gate.ipv4, buf, |
752 | sizeof(buf))); | |
e22ac3ee DS |
753 | break; |
754 | case NEXTHOP_TYPE_IFINDEX: | |
755 | vty_out(vty, " if %s\n", | |
996c9314 | 756 | ifindex2ifname(nexthop->ifindex, bgp->vrf_id)); |
e22ac3ee DS |
757 | break; |
758 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
759 | vty_out(vty, " gate %s, if %s\n", | |
996c9314 LB |
760 | inet_ntop(AF_INET, &nexthop->gate.ipv4, buf, |
761 | sizeof(buf)), | |
762 | ifindex2ifname(nexthop->ifindex, bgp->vrf_id)); | |
e22ac3ee DS |
763 | break; |
764 | case NEXTHOP_TYPE_BLACKHOLE: | |
765 | vty_out(vty, " blackhole\n"); | |
766 | break; | |
767 | default: | |
996c9314 | 768 | vty_out(vty, " invalid nexthop type %u\n", |
e22ac3ee DS |
769 | nexthop->type); |
770 | } | |
5d76a53d | 771 | } |
e22ac3ee DS |
772 | } |
773 | ||
5d76a53d | 774 | static void bgp_show_nexthop(struct vty *vty, struct bgp *bgp, |
775 | struct bgp_node *rn, | |
776 | struct bgp_nexthop_cache *bnc, | |
777 | bool specific) | |
fb018d25 | 778 | { |
d62a17ae | 779 | char buf[PREFIX2STR_BUFFER]; |
d62a17ae | 780 | time_t tbuf; |
5d76a53d | 781 | struct peer *peer; |
782 | const struct prefix *p = bgp_node_get_prefix(rn); | |
783 | ||
784 | peer = (struct peer *)bnc->nht_info; | |
785 | ||
786 | if (CHECK_FLAG(bnc->flags, BGP_NEXTHOP_VALID)) { | |
787 | vty_out(vty, " %s valid [IGP metric %d], #paths %d", | |
788 | inet_ntop(p->family, &p->u.prefix, buf, sizeof(buf)), | |
789 | bnc->metric, bnc->path_count); | |
790 | if (peer) | |
791 | vty_out(vty, ", peer %s", peer->host); | |
792 | vty_out(vty, "\n"); | |
793 | bgp_show_nexthops_detail(vty, bgp, bnc); | |
794 | } else { | |
795 | vty_out(vty, " %s invalid, #paths %d", | |
796 | inet_ntop(p->family, &p->u.prefix, buf, sizeof(buf)), | |
797 | bnc->path_count); | |
798 | if (peer) | |
799 | vty_out(vty, ", peer %s", peer->host); | |
800 | vty_out(vty, "\n"); | |
801 | if (CHECK_FLAG(bnc->flags, BGP_NEXTHOP_CONNECTED)) | |
802 | vty_out(vty, " Must be Connected\n"); | |
803 | if (!CHECK_FLAG(bnc->flags, BGP_NEXTHOP_REGISTERED)) | |
804 | vty_out(vty, " Is not Registered\n"); | |
805 | } | |
806 | tbuf = time(NULL) - (bgp_clock() - bnc->last_update); | |
807 | vty_out(vty, " Last update: %s", ctime(&tbuf)); | |
808 | vty_out(vty, "\n"); | |
809 | ||
810 | /* show paths dependent on nexthop, if needed. */ | |
811 | if (specific) | |
812 | bgp_show_nexthop_paths(vty, bgp, bnc); | |
813 | } | |
814 | ||
815 | static void bgp_show_nexthops(struct vty *vty, struct bgp *bgp, | |
816 | bool import_table) | |
817 | { | |
818 | struct bgp_node *rn; | |
819 | struct bgp_nexthop_cache *bnc; | |
d62a17ae | 820 | afi_t afi; |
05e47722 | 821 | struct bgp_table **table; |
d62a17ae | 822 | |
05e47722 PG |
823 | if (import_table) |
824 | vty_out(vty, "Current BGP import check cache:\n"); | |
825 | else | |
826 | vty_out(vty, "Current BGP nexthop cache:\n"); | |
827 | if (import_table) | |
828 | table = bgp->import_check_table; | |
829 | else | |
830 | table = bgp->nexthop_cache_table; | |
d62a17ae | 831 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
05e47722 | 832 | if (!table || !table[afi]) |
d62a17ae | 833 | continue; |
05e47722 | 834 | for (rn = bgp_table_top(table[afi]); rn; |
d62a17ae | 835 | rn = bgp_route_next(rn)) { |
5b8d32bd | 836 | bnc = bgp_node_get_bgp_nexthop_info(rn); |
14315f2d DS |
837 | if (!bnc) |
838 | continue; | |
5d76a53d | 839 | bgp_show_nexthop(vty, bgp, rn, bnc, false); |
da11a696 | 840 | } |
fb018d25 | 841 | } |
f186de26 | 842 | } |
843 | ||
d62a17ae | 844 | static int show_ip_bgp_nexthop_table(struct vty *vty, const char *name, |
5d76a53d | 845 | const char *nhopip_str, |
846 | bool import_table) | |
f186de26 | 847 | { |
d62a17ae | 848 | struct bgp *bgp; |
849 | ||
850 | if (name) | |
851 | bgp = bgp_lookup_by_name(name); | |
852 | else | |
853 | bgp = bgp_get_default(); | |
854 | if (!bgp) { | |
855 | vty_out(vty, "%% No such BGP instance exist\n"); | |
856 | return CMD_WARNING; | |
857 | } | |
f186de26 | 858 | |
5d76a53d | 859 | if (nhopip_str) { |
860 | struct prefix nhop; | |
861 | struct bgp_table **table; | |
862 | struct bgp_node *rn; | |
863 | struct bgp_nexthop_cache *bnc; | |
864 | ||
865 | if (!str2prefix(nhopip_str, &nhop)) { | |
866 | vty_out(vty, "nexthop address is malformed\n"); | |
867 | return CMD_WARNING; | |
868 | } | |
869 | table = import_table ? \ | |
870 | bgp->import_check_table : bgp->nexthop_cache_table; | |
871 | rn = bgp_node_lookup(table[family2afi(nhop.family)], &nhop); | |
872 | if (!rn) { | |
873 | vty_out(vty, "specified nexthop is not found\n"); | |
874 | return CMD_SUCCESS; | |
875 | } | |
876 | bnc = bgp_node_get_bgp_nexthop_info(rn); | |
877 | if (!bnc) { | |
878 | vty_out(vty, "specified nexthop does not have entry\n"); | |
879 | return CMD_SUCCESS; | |
880 | } | |
881 | bgp_show_nexthop(vty, bgp, rn, bnc, true); | |
882 | } else | |
883 | bgp_show_nexthops(vty, bgp, import_table); | |
f186de26 | 884 | |
d62a17ae | 885 | return CMD_SUCCESS; |
fb018d25 DS |
886 | } |
887 | ||
d62a17ae | 888 | static void bgp_show_all_instances_nexthops_vty(struct vty *vty) |
f186de26 | 889 | { |
d62a17ae | 890 | struct listnode *node, *nnode; |
891 | struct bgp *bgp; | |
892 | ||
893 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) { | |
894 | vty_out(vty, "\nInstance %s:\n", | |
895 | (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
5742e42b | 896 | ? VRF_DEFAULT_NAME |
d62a17ae | 897 | : bgp->name); |
5d76a53d | 898 | bgp_show_nexthops(vty, bgp, false); |
d62a17ae | 899 | } |
f186de26 | 900 | } |
901 | ||
fb018d25 DS |
902 | DEFUN (show_ip_bgp_nexthop, |
903 | show_ip_bgp_nexthop_cmd, | |
5d76a53d | 904 | "show [ip] bgp [<view|vrf> VIEWVRFNAME] nexthop [<A.B.C.D|X:X::X:X>] [detail]", |
50ef26d4 | 905 | SHOW_STR |
906 | IP_STR | |
907 | BGP_STR | |
8386ac43 | 908 | BGP_INSTANCE_HELP_STR |
3a2d747c | 909 | "BGP nexthop table\n" |
5d76a53d | 910 | "IPv4 nexthop address\n" |
911 | "IPv6 nexthop address\n" | |
3a2d747c | 912 | "Show detailed information\n") |
50ef26d4 | 913 | { |
d62a17ae | 914 | int idx = 0; |
5d76a53d | 915 | int nh_idx = 0; |
b7ada628 | 916 | char *vrf = NULL; |
5d76a53d | 917 | char *nhop_ip = NULL; |
b7ada628 DS |
918 | |
919 | if (argv_find(argv, argc, "view", &idx) | |
920 | || argv_find(argv, argc, "vrf", &idx)) | |
921 | vrf = argv[++idx]->arg; | |
05e47722 | 922 | |
5d76a53d | 923 | if (argv_find(argv, argc, "A.B.C.D", &nh_idx) |
924 | || argv_find(argv, argc, "X:X::X:X", &nh_idx)) | |
925 | nhop_ip = argv[nh_idx]->arg; | |
926 | ||
927 | return show_ip_bgp_nexthop_table(vty, vrf, nhop_ip, false); | |
05e47722 PG |
928 | } |
929 | ||
930 | DEFUN (show_ip_bgp_import_check, | |
931 | show_ip_bgp_import_check_cmd, | |
932 | "show [ip] bgp [<view|vrf> VIEWVRFNAME] import-check-table [detail]", | |
933 | SHOW_STR | |
934 | IP_STR | |
935 | BGP_STR | |
936 | BGP_INSTANCE_HELP_STR | |
937 | "BGP import check table\n" | |
938 | "Show detailed information\n") | |
939 | { | |
940 | int idx = 0; | |
941 | char *vrf = NULL; | |
942 | ||
943 | if (argv_find(argv, argc, "view", &idx) | |
944 | || argv_find(argv, argc, "vrf", &idx)) | |
945 | vrf = argv[++idx]->arg; | |
5d76a53d | 946 | |
947 | return show_ip_bgp_nexthop_table(vty, vrf, NULL, true); | |
50ef26d4 | 948 | } |
949 | ||
f186de26 | 950 | DEFUN (show_ip_bgp_instance_all_nexthop, |
951 | show_ip_bgp_instance_all_nexthop_cmd, | |
bec37ba5 | 952 | "show [ip] bgp <view|vrf> all nexthop", |
f186de26 | 953 | SHOW_STR |
954 | IP_STR | |
955 | BGP_STR | |
956 | BGP_INSTANCE_ALL_HELP_STR | |
957 | "BGP nexthop table\n") | |
958 | { | |
d62a17ae | 959 | bgp_show_all_instances_nexthops_vty(vty); |
960 | return CMD_SUCCESS; | |
f186de26 | 961 | } |
962 | ||
d62a17ae | 963 | void bgp_scan_init(struct bgp *bgp) |
718e3744 | 964 | { |
d62a17ae | 965 | afi_t afi; |
966 | ||
967 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
968 | bgp->nexthop_cache_table[afi] = | |
960035b2 PZ |
969 | bgp_table_init(bgp, afi, SAFI_UNICAST); |
970 | bgp->connected_table[afi] = bgp_table_init(bgp, afi, | |
971 | SAFI_UNICAST); | |
d62a17ae | 972 | bgp->import_check_table[afi] = |
960035b2 | 973 | bgp_table_init(bgp, afi, SAFI_UNICAST); |
d62a17ae | 974 | } |
fc9a856f DS |
975 | } |
976 | ||
d62a17ae | 977 | void bgp_scan_vty_init(void) |
fc9a856f | 978 | { |
d62a17ae | 979 | install_element(VIEW_NODE, &show_ip_bgp_nexthop_cmd); |
05e47722 | 980 | install_element(VIEW_NODE, &show_ip_bgp_import_check_cmd); |
d62a17ae | 981 | install_element(VIEW_NODE, &show_ip_bgp_instance_all_nexthop_cmd); |
718e3744 | 982 | } |
228da428 | 983 | |
d62a17ae | 984 | void bgp_scan_finish(struct bgp *bgp) |
228da428 | 985 | { |
d62a17ae | 986 | afi_t afi; |
6c88b44d | 987 | |
d62a17ae | 988 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
989 | /* Only the current one needs to be reset. */ | |
990 | bgp_nexthop_cache_reset(bgp->nexthop_cache_table[afi]); | |
991 | bgp_table_unlock(bgp->nexthop_cache_table[afi]); | |
992 | bgp->nexthop_cache_table[afi] = NULL; | |
228da428 | 993 | |
3292693b DS |
994 | bgp->connected_table[afi]->route_table->cleanup = |
995 | bgp_connected_cleanup; | |
d62a17ae | 996 | bgp_table_unlock(bgp->connected_table[afi]); |
997 | bgp->connected_table[afi] = NULL; | |
078430f6 | 998 | |
d62a17ae | 999 | bgp_table_unlock(bgp->import_check_table[afi]); |
1000 | bgp->import_check_table[afi] = NULL; | |
1001 | } | |
228da428 | 1002 | } |