]>
Commit | Line | Data |
---|---|---|
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" |
718e3744 | 47 | #include "zebra/rib.h" |
d62a17ae | 48 | #include "zebra/zserv.h" /* For ZEBRA_SERV_PATH. */ |
718e3744 | 49 | |
d62a17ae | 50 | char *bnc_str(struct bgp_nexthop_cache *bnc, char *buf, int size) |
fb018d25 | 51 | { |
d62a17ae | 52 | prefix2str(&(bnc->node->p), buf, size); |
53 | return buf; | |
fb018d25 DS |
54 | } |
55 | ||
d62a17ae | 56 | void bnc_nexthop_free(struct bgp_nexthop_cache *bnc) |
718e3744 | 57 | { |
d62a17ae | 58 | nexthops_free(bnc->nexthop); |
718e3744 | 59 | } |
60 | ||
d62a17ae | 61 | struct bgp_nexthop_cache *bnc_new(void) |
718e3744 | 62 | { |
d62a17ae | 63 | struct bgp_nexthop_cache *bnc; |
fb018d25 | 64 | |
d62a17ae | 65 | bnc = XCALLOC(MTYPE_BGP_NEXTHOP_CACHE, |
66 | sizeof(struct bgp_nexthop_cache)); | |
67 | LIST_INIT(&(bnc->paths)); | |
68 | return bnc; | |
718e3744 | 69 | } |
70 | ||
d62a17ae | 71 | void bnc_free(struct bgp_nexthop_cache *bnc) |
718e3744 | 72 | { |
d62a17ae | 73 | bnc_nexthop_free(bnc); |
74 | XFREE(MTYPE_BGP_NEXTHOP_CACHE, bnc); | |
718e3744 | 75 | } |
6b0655a2 | 76 | |
718e3744 | 77 | /* Reset and free all BGP nexthop cache. */ |
d62a17ae | 78 | static void bgp_nexthop_cache_reset(struct bgp_table *table) |
718e3744 | 79 | { |
d62a17ae | 80 | struct bgp_node *rn; |
81 | struct bgp_nexthop_cache *bnc; | |
82 | ||
83 | for (rn = bgp_table_top(table); rn; rn = bgp_route_next(rn)) | |
84 | if ((bnc = rn->info) != NULL) { | |
85 | bnc_free(bnc); | |
86 | rn->info = NULL; | |
87 | bgp_unlock_node(rn); | |
88 | } | |
718e3744 | 89 | } |
90 | ||
db0e1937 MK |
91 | static void *bgp_tip_hash_alloc(void *p) |
92 | { | |
0291c246 MK |
93 | const struct in_addr *val = (const struct in_addr *)p; |
94 | struct tip_addr *addr; | |
db0e1937 MK |
95 | |
96 | addr = XMALLOC(MTYPE_TIP_ADDR, sizeof(struct tip_addr)); | |
97 | addr->refcnt = 0; | |
98 | addr->addr.s_addr = val->s_addr; | |
99 | ||
100 | return addr; | |
101 | } | |
102 | ||
103 | static void bgp_tip_hash_free(void *addr) | |
104 | { | |
105 | XFREE(MTYPE_TIP_ADDR, addr); | |
106 | } | |
107 | ||
108 | static unsigned int bgp_tip_hash_key_make(void *p) | |
109 | { | |
0291c246 | 110 | const struct tip_addr *addr = p; |
db0e1937 MK |
111 | |
112 | return jhash_1word(addr->addr.s_addr, 0); | |
113 | } | |
114 | ||
115 | static int bgp_tip_hash_cmp(const void *p1, const void *p2) | |
116 | { | |
0291c246 MK |
117 | const struct tip_addr *addr1 = p1; |
118 | const struct tip_addr *addr2 = p2; | |
db0e1937 MK |
119 | |
120 | return addr1->addr.s_addr == addr2->addr.s_addr; | |
121 | } | |
122 | ||
123 | void bgp_tip_hash_init(struct bgp *bgp) | |
124 | { | |
60466a63 QY |
125 | bgp->tip_hash = |
126 | hash_create(bgp_tip_hash_key_make, bgp_tip_hash_cmp, NULL); | |
db0e1937 MK |
127 | } |
128 | ||
129 | void bgp_tip_hash_destroy(struct bgp *bgp) | |
130 | { | |
131 | if (bgp->tip_hash == NULL) | |
132 | return; | |
133 | hash_clean(bgp->tip_hash, bgp_tip_hash_free); | |
134 | hash_free(bgp->tip_hash); | |
135 | bgp->tip_hash = NULL; | |
136 | } | |
137 | ||
138 | void bgp_tip_add(struct bgp *bgp, struct in_addr *tip) | |
139 | { | |
0291c246 MK |
140 | struct tip_addr tmp; |
141 | struct tip_addr *addr; | |
db0e1937 MK |
142 | |
143 | tmp.addr = *tip; | |
144 | ||
145 | addr = hash_get(bgp->tip_hash, &tmp, bgp_tip_hash_alloc); | |
146 | if (!addr) | |
147 | return; | |
148 | ||
149 | addr->refcnt++; | |
150 | } | |
151 | ||
152 | void bgp_tip_del(struct bgp *bgp, struct in_addr *tip) | |
153 | { | |
0291c246 MK |
154 | struct tip_addr tmp; |
155 | struct tip_addr *addr; | |
db0e1937 MK |
156 | |
157 | tmp.addr = *tip; | |
158 | ||
159 | addr = hash_lookup(bgp->tip_hash, &tmp); | |
160 | /* may have been deleted earlier by bgp_interface_down() */ | |
161 | if (addr == NULL) | |
162 | return; | |
163 | ||
164 | addr->refcnt--; | |
165 | ||
166 | if (addr->refcnt == 0) { | |
167 | hash_release(bgp->tip_hash, addr); | |
168 | XFREE(MTYPE_TIP_ADDR, addr); | |
169 | } | |
170 | } | |
10f9bf3f | 171 | |
d62a17ae | 172 | static void *bgp_address_hash_alloc(void *p) |
10f9bf3f | 173 | { |
d62a17ae | 174 | const struct in_addr *val = (const struct in_addr *)p; |
175 | struct bgp_addr *addr; | |
10f9bf3f | 176 | |
d62a17ae | 177 | addr = XMALLOC(MTYPE_BGP_ADDR, sizeof(struct bgp_addr)); |
178 | addr->refcnt = 0; | |
179 | addr->addr.s_addr = val->s_addr; | |
10f9bf3f | 180 | |
d62a17ae | 181 | return addr; |
10f9bf3f JBD |
182 | } |
183 | ||
d62a17ae | 184 | static void bgp_address_hash_free(void *addr) |
37d361e7 | 185 | { |
d62a17ae | 186 | XFREE(MTYPE_BGP_ADDR, addr); |
37d361e7 RW |
187 | } |
188 | ||
d62a17ae | 189 | static unsigned int bgp_address_hash_key_make(void *p) |
10f9bf3f | 190 | { |
d62a17ae | 191 | const struct bgp_addr *addr = p; |
10f9bf3f | 192 | |
d62a17ae | 193 | return jhash_1word(addr->addr.s_addr, 0); |
10f9bf3f JBD |
194 | } |
195 | ||
d62a17ae | 196 | static int bgp_address_hash_cmp(const void *p1, const void *p2) |
10f9bf3f | 197 | { |
d62a17ae | 198 | const struct bgp_addr *addr1 = p1; |
199 | const struct bgp_addr *addr2 = p2; | |
10f9bf3f | 200 | |
d62a17ae | 201 | return addr1->addr.s_addr == addr2->addr.s_addr; |
10f9bf3f JBD |
202 | } |
203 | ||
d62a17ae | 204 | void bgp_address_init(struct bgp *bgp) |
10f9bf3f | 205 | { |
d62a17ae | 206 | bgp->address_hash = hash_create(bgp_address_hash_key_make, |
207 | bgp_address_hash_cmp, NULL); | |
10f9bf3f JBD |
208 | } |
209 | ||
d62a17ae | 210 | void bgp_address_destroy(struct bgp *bgp) |
bb86c601 | 211 | { |
d62a17ae | 212 | if (bgp->address_hash == NULL) |
213 | return; | |
214 | hash_clean(bgp->address_hash, bgp_address_hash_free); | |
215 | hash_free(bgp->address_hash); | |
216 | bgp->address_hash = NULL; | |
bb86c601 LB |
217 | } |
218 | ||
d62a17ae | 219 | static void bgp_address_add(struct bgp *bgp, struct prefix *p) |
10f9bf3f | 220 | { |
d62a17ae | 221 | struct bgp_addr tmp; |
222 | struct bgp_addr *addr; | |
10f9bf3f | 223 | |
d62a17ae | 224 | tmp.addr = p->u.prefix4; |
10f9bf3f | 225 | |
d62a17ae | 226 | addr = hash_get(bgp->address_hash, &tmp, bgp_address_hash_alloc); |
227 | if (!addr) | |
228 | return; | |
5ce10e92 | 229 | |
d62a17ae | 230 | addr->refcnt++; |
10f9bf3f JBD |
231 | } |
232 | ||
d62a17ae | 233 | static void bgp_address_del(struct bgp *bgp, struct prefix *p) |
10f9bf3f | 234 | { |
d62a17ae | 235 | struct bgp_addr tmp; |
236 | struct bgp_addr *addr; | |
10f9bf3f | 237 | |
d62a17ae | 238 | tmp.addr = p->u.prefix4; |
10f9bf3f | 239 | |
d62a17ae | 240 | addr = hash_lookup(bgp->address_hash, &tmp); |
241 | /* may have been deleted earlier by bgp_interface_down() */ | |
242 | if (addr == NULL) | |
243 | return; | |
9e47abd8 | 244 | |
d62a17ae | 245 | addr->refcnt--; |
10f9bf3f | 246 | |
d62a17ae | 247 | if (addr->refcnt == 0) { |
248 | hash_release(bgp->address_hash, addr); | |
249 | XFREE(MTYPE_BGP_ADDR, addr); | |
250 | } | |
10f9bf3f JBD |
251 | } |
252 | ||
6b0655a2 | 253 | |
d62a17ae | 254 | struct bgp_connected_ref { |
255 | unsigned int refcnt; | |
718e3744 | 256 | }; |
257 | ||
d62a17ae | 258 | void bgp_connected_add(struct bgp *bgp, struct connected *ifc) |
718e3744 | 259 | { |
d62a17ae | 260 | struct prefix p; |
261 | struct prefix *addr; | |
262 | struct bgp_node *rn; | |
263 | struct bgp_connected_ref *bc; | |
264 | struct listnode *node, *nnode; | |
265 | struct peer *peer; | |
266 | ||
267 | addr = ifc->address; | |
268 | ||
269 | p = *(CONNECTED_PREFIX(ifc)); | |
270 | if (addr->family == AF_INET) { | |
271 | apply_mask_ipv4((struct prefix_ipv4 *)&p); | |
272 | ||
273 | if (prefix_ipv4_any((struct prefix_ipv4 *)&p)) | |
274 | return; | |
275 | ||
276 | bgp_address_add(bgp, addr); | |
277 | ||
278 | rn = bgp_node_get(bgp->connected_table[AFI_IP], | |
279 | (struct prefix *)&p); | |
280 | if (rn->info) { | |
281 | bc = rn->info; | |
282 | bc->refcnt++; | |
283 | } else { | |
284 | bc = XCALLOC(MTYPE_BGP_CONN, | |
285 | sizeof(struct bgp_connected_ref)); | |
286 | bc->refcnt = 1; | |
287 | rn->info = bc; | |
288 | } | |
8ffedcea | 289 | |
d62a17ae | 290 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { |
291 | if (peer->conf_if | |
292 | && (strcmp(peer->conf_if, ifc->ifp->name) == 0) | |
293 | && peer->status != Established | |
294 | && !CHECK_FLAG(peer->flags, | |
295 | PEER_FLAG_IFPEER_V6ONLY)) { | |
296 | if (peer_active(peer)) | |
297 | BGP_EVENT_ADD(peer, BGP_Stop); | |
298 | BGP_EVENT_ADD(peer, BGP_Start); | |
299 | } | |
300 | } | |
301 | } else if (addr->family == AF_INET6) { | |
302 | apply_mask_ipv6((struct prefix_ipv6 *)&p); | |
303 | ||
304 | if (IN6_IS_ADDR_UNSPECIFIED(&p.u.prefix6)) | |
305 | return; | |
306 | ||
307 | if (IN6_IS_ADDR_LINKLOCAL(&p.u.prefix6)) | |
308 | return; | |
309 | ||
310 | rn = bgp_node_get(bgp->connected_table[AFI_IP6], | |
311 | (struct prefix *)&p); | |
312 | if (rn->info) { | |
313 | bc = rn->info; | |
314 | bc->refcnt++; | |
315 | } else { | |
316 | bc = XCALLOC(MTYPE_BGP_CONN, | |
317 | sizeof(struct bgp_connected_ref)); | |
318 | bc->refcnt = 1; | |
319 | rn->info = bc; | |
320 | } | |
718e3744 | 321 | } |
718e3744 | 322 | } |
323 | ||
d62a17ae | 324 | void bgp_connected_delete(struct bgp *bgp, struct connected *ifc) |
718e3744 | 325 | { |
d62a17ae | 326 | struct prefix p; |
327 | struct prefix *addr; | |
328 | struct bgp_node *rn; | |
329 | struct bgp_connected_ref *bc; | |
718e3744 | 330 | |
d62a17ae | 331 | addr = ifc->address; |
718e3744 | 332 | |
d62a17ae | 333 | p = *(CONNECTED_PREFIX(ifc)); |
334 | if (addr->family == AF_INET) { | |
335 | apply_mask_ipv4((struct prefix_ipv4 *)&p); | |
718e3744 | 336 | |
d62a17ae | 337 | if (prefix_ipv4_any((struct prefix_ipv4 *)&p)) |
338 | return; | |
718e3744 | 339 | |
d62a17ae | 340 | bgp_address_del(bgp, addr); |
10f9bf3f | 341 | |
d62a17ae | 342 | rn = bgp_node_lookup(bgp->connected_table[AFI_IP], &p); |
343 | if (!rn) | |
344 | return; | |
718e3744 | 345 | |
d62a17ae | 346 | bc = rn->info; |
347 | bc->refcnt--; | |
348 | if (bc->refcnt == 0) { | |
349 | XFREE(MTYPE_BGP_CONN, bc); | |
350 | rn->info = NULL; | |
351 | } | |
352 | bgp_unlock_node(rn); | |
353 | bgp_unlock_node(rn); | |
354 | } else if (addr->family == AF_INET6) { | |
355 | apply_mask_ipv6((struct prefix_ipv6 *)&p); | |
356 | ||
357 | if (IN6_IS_ADDR_UNSPECIFIED(&p.u.prefix6)) | |
358 | return; | |
359 | ||
360 | if (IN6_IS_ADDR_LINKLOCAL(&p.u.prefix6)) | |
361 | return; | |
362 | ||
363 | rn = bgp_node_lookup(bgp->connected_table[AFI_IP6], | |
364 | (struct prefix *)&p); | |
365 | if (!rn) | |
366 | return; | |
367 | ||
368 | bc = rn->info; | |
369 | bc->refcnt--; | |
370 | if (bc->refcnt == 0) { | |
371 | XFREE(MTYPE_BGP_CONN, bc); | |
372 | rn->info = NULL; | |
373 | } | |
374 | bgp_unlock_node(rn); | |
375 | bgp_unlock_node(rn); | |
718e3744 | 376 | } |
718e3744 | 377 | } |
378 | ||
d62a17ae | 379 | int bgp_nexthop_self(struct bgp *bgp, struct in_addr nh_addr) |
718e3744 | 380 | { |
d62a17ae | 381 | struct bgp_addr tmp, *addr; |
db0e1937 | 382 | struct tip_addr tmp_tip, *tip; |
718e3744 | 383 | |
d62a17ae | 384 | tmp.addr = nh_addr; |
10f9bf3f | 385 | |
d62a17ae | 386 | addr = hash_lookup(bgp->address_hash, &tmp); |
387 | if (addr) | |
388 | return 1; | |
718e3744 | 389 | |
db0e1937 MK |
390 | tmp_tip.addr = nh_addr; |
391 | tip = hash_lookup(bgp->tip_hash, &tmp_tip); | |
392 | if (tip) | |
393 | return 1; | |
394 | ||
d62a17ae | 395 | return 0; |
718e3744 | 396 | } |
6b0655a2 | 397 | |
d62a17ae | 398 | int bgp_multiaccess_check_v4(struct in_addr nexthop, struct peer *peer) |
718e3744 | 399 | { |
d62a17ae | 400 | struct bgp_node *rn1; |
401 | struct bgp_node *rn2; | |
402 | struct prefix p; | |
403 | int ret; | |
404 | ||
405 | p.family = AF_INET; | |
406 | p.prefixlen = IPV4_MAX_BITLEN; | |
407 | p.u.prefix4 = nexthop; | |
408 | ||
409 | rn1 = bgp_node_match(peer->bgp->connected_table[AFI_IP], &p); | |
410 | if (!rn1) | |
411 | return 0; | |
412 | ||
413 | p.family = AF_INET; | |
414 | p.prefixlen = IPV4_MAX_BITLEN; | |
415 | p.u.prefix4 = peer->su.sin.sin_addr; | |
416 | ||
417 | rn2 = bgp_node_match(peer->bgp->connected_table[AFI_IP], &p); | |
418 | if (!rn2) { | |
419 | bgp_unlock_node(rn1); | |
420 | return 0; | |
421 | } | |
718e3744 | 422 | |
d62a17ae | 423 | ret = (rn1 == rn2) ? 1 : 0; |
718e3744 | 424 | |
d62a17ae | 425 | bgp_unlock_node(rn1); |
426 | bgp_unlock_node(rn2); | |
718e3744 | 427 | |
d62a17ae | 428 | return (ret); |
718e3744 | 429 | } |
430 | ||
d62a17ae | 431 | static void bgp_show_nexthops(struct vty *vty, struct bgp *bgp, int detail) |
fb018d25 | 432 | { |
d62a17ae | 433 | struct bgp_node *rn; |
434 | struct bgp_nexthop_cache *bnc; | |
435 | char buf[PREFIX2STR_BUFFER]; | |
436 | struct nexthop *nexthop; | |
437 | time_t tbuf; | |
438 | afi_t afi; | |
439 | ||
440 | vty_out(vty, "Current BGP nexthop cache:\n"); | |
441 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
442 | if (!bgp->nexthop_cache_table[afi]) | |
443 | continue; | |
444 | ||
445 | for (rn = bgp_table_top(bgp->nexthop_cache_table[afi]); rn; | |
446 | rn = bgp_route_next(rn)) { | |
447 | if ((bnc = rn->info) != NULL) { | |
448 | if (CHECK_FLAG(bnc->flags, BGP_NEXTHOP_VALID)) { | |
449 | vty_out(vty, | |
450 | " %s valid [IGP metric %d], #paths %d\n", | |
451 | inet_ntop(rn->p.family, | |
452 | &rn->p.u.prefix, buf, | |
453 | sizeof(buf)), | |
454 | bnc->metric, bnc->path_count); | |
455 | if (detail) | |
456 | for (nexthop = bnc->nexthop; | |
457 | nexthop; | |
458 | nexthop = nexthop->next) | |
459 | switch (nexthop->type) { | |
460 | case NEXTHOP_TYPE_IPV6: | |
461 | vty_out(vty, | |
462 | " gate %s\n", | |
463 | inet_ntop( | |
464 | AF_INET6, | |
465 | &nexthop->gate | |
466 | .ipv6, | |
467 | buf, | |
468 | sizeof(buf))); | |
469 | break; | |
470 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
471 | vty_out(vty, | |
472 | " gate %s, if %s\n", | |
473 | inet_ntop( | |
474 | AF_INET6, | |
475 | &nexthop->gate | |
476 | .ipv6, | |
477 | buf, | |
478 | sizeof(buf)), | |
479 | ifindex2ifname( | |
480 | nexthop->ifindex, | |
481 | bgp->vrf_id)); | |
482 | break; | |
483 | case NEXTHOP_TYPE_IPV4: | |
484 | vty_out(vty, | |
485 | " gate %s\n", | |
486 | inet_ntop( | |
487 | AF_INET, | |
488 | &nexthop->gate | |
489 | .ipv4, | |
490 | buf, | |
491 | sizeof(buf))); | |
492 | break; | |
493 | case NEXTHOP_TYPE_IFINDEX: | |
494 | vty_out(vty, | |
495 | " if %s\n", | |
496 | ifindex2ifname( | |
497 | nexthop->ifindex, | |
498 | bgp->vrf_id)); | |
499 | break; | |
500 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
501 | vty_out(vty, | |
502 | " gate %s, if %s\n", | |
503 | inet_ntop( | |
504 | AF_INET, | |
505 | &nexthop->gate | |
506 | .ipv4, | |
507 | buf, | |
508 | sizeof(buf)), | |
509 | ifindex2ifname( | |
510 | nexthop->ifindex, | |
511 | bgp->vrf_id)); | |
512 | break; | |
513 | default: | |
514 | vty_out(vty, | |
515 | " invalid nexthop type %u\n", | |
516 | nexthop->type); | |
517 | } | |
518 | } else { | |
519 | vty_out(vty, " %s invalid\n", | |
520 | inet_ntop(rn->p.family, | |
521 | &rn->p.u.prefix, buf, | |
522 | sizeof(buf))); | |
523 | if (CHECK_FLAG(bnc->flags, | |
524 | BGP_NEXTHOP_CONNECTED)) | |
525 | vty_out(vty, | |
526 | " Must be Connected\n"); | |
527 | } | |
528 | tbuf = time(NULL) | |
529 | - (bgp_clock() - bnc->last_update); | |
530 | vty_out(vty, " Last update: %s", ctime(&tbuf)); | |
531 | vty_out(vty, "\n"); | |
da11a696 DS |
532 | } |
533 | } | |
fb018d25 | 534 | } |
f186de26 | 535 | } |
536 | ||
d62a17ae | 537 | static int show_ip_bgp_nexthop_table(struct vty *vty, const char *name, |
538 | int detail) | |
f186de26 | 539 | { |
d62a17ae | 540 | struct bgp *bgp; |
541 | ||
542 | if (name) | |
543 | bgp = bgp_lookup_by_name(name); | |
544 | else | |
545 | bgp = bgp_get_default(); | |
546 | if (!bgp) { | |
547 | vty_out(vty, "%% No such BGP instance exist\n"); | |
548 | return CMD_WARNING; | |
549 | } | |
f186de26 | 550 | |
d62a17ae | 551 | bgp_show_nexthops(vty, bgp, detail); |
f186de26 | 552 | |
d62a17ae | 553 | return CMD_SUCCESS; |
fb018d25 DS |
554 | } |
555 | ||
d62a17ae | 556 | static void bgp_show_all_instances_nexthops_vty(struct vty *vty) |
f186de26 | 557 | { |
d62a17ae | 558 | struct listnode *node, *nnode; |
559 | struct bgp *bgp; | |
560 | ||
561 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) { | |
562 | vty_out(vty, "\nInstance %s:\n", | |
563 | (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
564 | ? "Default" | |
565 | : bgp->name); | |
566 | bgp_show_nexthops(vty, bgp, 0); | |
567 | } | |
f186de26 | 568 | } |
569 | ||
fb018d25 DS |
570 | DEFUN (show_ip_bgp_nexthop, |
571 | show_ip_bgp_nexthop_cmd, | |
18c57037 | 572 | "show [ip] bgp [<view|vrf> VIEWVRFNAME] nexthop [detail]", |
50ef26d4 | 573 | SHOW_STR |
574 | IP_STR | |
575 | BGP_STR | |
8386ac43 | 576 | BGP_INSTANCE_HELP_STR |
3a2d747c QY |
577 | "BGP nexthop table\n" |
578 | "Show detailed information\n") | |
50ef26d4 | 579 | { |
d62a17ae | 580 | int idx = 0; |
581 | char *vrf = argv_find(argv, argc, "WORD", &idx) ? argv[idx]->arg : NULL; | |
582 | int detail = argv_find(argv, argc, "detail", &idx) ? 1 : 0; | |
583 | return show_ip_bgp_nexthop_table(vty, vrf, detail); | |
50ef26d4 | 584 | } |
585 | ||
f186de26 | 586 | DEFUN (show_ip_bgp_instance_all_nexthop, |
587 | show_ip_bgp_instance_all_nexthop_cmd, | |
bec37ba5 | 588 | "show [ip] bgp <view|vrf> all nexthop", |
f186de26 | 589 | SHOW_STR |
590 | IP_STR | |
591 | BGP_STR | |
592 | BGP_INSTANCE_ALL_HELP_STR | |
593 | "BGP nexthop table\n") | |
594 | { | |
d62a17ae | 595 | bgp_show_all_instances_nexthops_vty(vty); |
596 | return CMD_SUCCESS; | |
f186de26 | 597 | } |
598 | ||
d62a17ae | 599 | void bgp_scan_init(struct bgp *bgp) |
718e3744 | 600 | { |
d62a17ae | 601 | afi_t afi; |
602 | ||
603 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
604 | bgp->nexthop_cache_table[afi] = | |
605 | bgp_table_init(afi, SAFI_UNICAST); | |
606 | bgp->connected_table[afi] = bgp_table_init(afi, SAFI_UNICAST); | |
607 | bgp->import_check_table[afi] = | |
608 | bgp_table_init(afi, SAFI_UNICAST); | |
609 | } | |
fc9a856f DS |
610 | } |
611 | ||
d62a17ae | 612 | void bgp_scan_vty_init(void) |
fc9a856f | 613 | { |
d62a17ae | 614 | install_element(VIEW_NODE, &show_ip_bgp_nexthop_cmd); |
615 | install_element(VIEW_NODE, &show_ip_bgp_instance_all_nexthop_cmd); | |
718e3744 | 616 | } |
228da428 | 617 | |
d62a17ae | 618 | void bgp_scan_finish(struct bgp *bgp) |
228da428 | 619 | { |
d62a17ae | 620 | afi_t afi; |
6c88b44d | 621 | |
d62a17ae | 622 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
623 | /* Only the current one needs to be reset. */ | |
624 | bgp_nexthop_cache_reset(bgp->nexthop_cache_table[afi]); | |
625 | bgp_table_unlock(bgp->nexthop_cache_table[afi]); | |
626 | bgp->nexthop_cache_table[afi] = NULL; | |
228da428 | 627 | |
d62a17ae | 628 | bgp_table_unlock(bgp->connected_table[afi]); |
629 | bgp->connected_table[afi] = NULL; | |
078430f6 | 630 | |
d62a17ae | 631 | bgp_table_unlock(bgp->import_check_table[afi]); |
632 | bgp->import_check_table[afi] = NULL; | |
633 | } | |
228da428 | 634 | } |