]>
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" | |
718e3744 | 38 | #include "bgpd/bgp_route.h" |
39 | #include "bgpd/bgp_attr.h" | |
40 | #include "bgpd/bgp_nexthop.h" | |
fb018d25 | 41 | #include "bgpd/bgp_nht.h" |
718e3744 | 42 | #include "bgpd/bgp_debug.h" |
43 | #include "bgpd/bgp_damp.h" | |
8ffedcea | 44 | #include "bgpd/bgp_fsm.h" |
8386ac43 | 45 | #include "bgpd/bgp_vty.h" |
5d76a53d | 46 | #include "bgpd/bgp_rd.h" |
718e3744 | 47 | |
2a99175f | 48 | DEFINE_MTYPE_STATIC(BGPD, MARTIAN_STRING, "BGP Martian Addr Intf String"); |
330cec3d | 49 | |
f663c581 RW |
50 | int bgp_nexthop_cache_compare(const struct bgp_nexthop_cache *a, |
51 | const struct bgp_nexthop_cache *b) | |
fb018d25 | 52 | { |
545aeef1 RW |
53 | if (a->srte_color < b->srte_color) |
54 | return -1; | |
55 | if (a->srte_color > b->srte_color) | |
56 | return 1; | |
57 | ||
f663c581 RW |
58 | return prefix_cmp(&a->prefix, &b->prefix); |
59 | } | |
60 | ||
61 | const char *bnc_str(struct bgp_nexthop_cache *bnc, char *buf, int size) | |
62 | { | |
63 | return prefix2str(&bnc->prefix, buf, size); | |
fb018d25 DS |
64 | } |
65 | ||
d62a17ae | 66 | void bnc_nexthop_free(struct bgp_nexthop_cache *bnc) |
718e3744 | 67 | { |
d62a17ae | 68 | nexthops_free(bnc->nexthop); |
718e3744 | 69 | } |
70 | ||
f663c581 | 71 | struct bgp_nexthop_cache *bnc_new(struct bgp_nexthop_cache_head *tree, |
545aeef1 | 72 | struct prefix *prefix, uint32_t srte_color) |
718e3744 | 73 | { |
d62a17ae | 74 | struct bgp_nexthop_cache *bnc; |
fb018d25 | 75 | |
d62a17ae | 76 | bnc = XCALLOC(MTYPE_BGP_NEXTHOP_CACHE, |
77 | sizeof(struct bgp_nexthop_cache)); | |
f663c581 | 78 | bnc->prefix = *prefix; |
545aeef1 | 79 | bnc->srte_color = srte_color; |
f663c581 | 80 | bnc->tree = tree; |
d62a17ae | 81 | LIST_INIT(&(bnc->paths)); |
f663c581 RW |
82 | bgp_nexthop_cache_add(tree, bnc); |
83 | ||
d62a17ae | 84 | return bnc; |
718e3744 | 85 | } |
86 | ||
e37e1e27 PR |
87 | bool bnc_existing_for_prefix(struct bgp_nexthop_cache *bnc) |
88 | { | |
89 | struct bgp_nexthop_cache *bnc_tmp; | |
90 | ||
91 | frr_each (bgp_nexthop_cache, bnc->tree, bnc_tmp) { | |
92 | if (bnc_tmp == bnc) | |
93 | continue; | |
94 | if (prefix_cmp(&bnc->prefix, &bnc_tmp->prefix) == 0) | |
95 | return true; | |
96 | } | |
97 | return false; | |
98 | } | |
99 | ||
d62a17ae | 100 | void bnc_free(struct bgp_nexthop_cache *bnc) |
718e3744 | 101 | { |
d62a17ae | 102 | bnc_nexthop_free(bnc); |
f663c581 | 103 | bgp_nexthop_cache_del(bnc->tree, bnc); |
d62a17ae | 104 | XFREE(MTYPE_BGP_NEXTHOP_CACHE, bnc); |
718e3744 | 105 | } |
6b0655a2 | 106 | |
f663c581 | 107 | struct bgp_nexthop_cache *bnc_find(struct bgp_nexthop_cache_head *tree, |
545aeef1 | 108 | struct prefix *prefix, uint32_t srte_color) |
f663c581 RW |
109 | { |
110 | struct bgp_nexthop_cache bnc = {}; | |
111 | ||
112 | if (!tree) | |
113 | return NULL; | |
114 | ||
115 | bnc.prefix = *prefix; | |
545aeef1 | 116 | bnc.srte_color = srte_color; |
f663c581 RW |
117 | return bgp_nexthop_cache_find(tree, &bnc); |
118 | } | |
119 | ||
718e3744 | 120 | /* Reset and free all BGP nexthop cache. */ |
f663c581 | 121 | static void bgp_nexthop_cache_reset(struct bgp_nexthop_cache_head *tree) |
718e3744 | 122 | { |
d62a17ae | 123 | struct bgp_nexthop_cache *bnc; |
124 | ||
f663c581 RW |
125 | while (bgp_nexthop_cache_count(tree) > 0) { |
126 | bnc = bgp_nexthop_cache_first(tree); | |
7f040da1 | 127 | |
3d111939 DS |
128 | while (!LIST_EMPTY(&(bnc->paths))) { |
129 | struct bgp_path_info *path = LIST_FIRST(&(bnc->paths)); | |
7f040da1 | 130 | |
3d111939 | 131 | path_nh_map(path, bnc, false); |
d62a17ae | 132 | } |
3d111939 DS |
133 | |
134 | bnc_free(bnc); | |
14315f2d | 135 | } |
718e3744 | 136 | } |
137 | ||
db0e1937 MK |
138 | static void *bgp_tip_hash_alloc(void *p) |
139 | { | |
0291c246 MK |
140 | const struct in_addr *val = (const struct in_addr *)p; |
141 | struct tip_addr *addr; | |
db0e1937 MK |
142 | |
143 | addr = XMALLOC(MTYPE_TIP_ADDR, sizeof(struct tip_addr)); | |
144 | addr->refcnt = 0; | |
145 | addr->addr.s_addr = val->s_addr; | |
146 | ||
147 | return addr; | |
148 | } | |
149 | ||
150 | static void bgp_tip_hash_free(void *addr) | |
151 | { | |
152 | XFREE(MTYPE_TIP_ADDR, addr); | |
153 | } | |
154 | ||
d8b87afe | 155 | static unsigned int bgp_tip_hash_key_make(const void *p) |
db0e1937 | 156 | { |
0291c246 | 157 | const struct tip_addr *addr = p; |
db0e1937 MK |
158 | |
159 | return jhash_1word(addr->addr.s_addr, 0); | |
160 | } | |
161 | ||
74df8d6d | 162 | static bool bgp_tip_hash_cmp(const void *p1, const void *p2) |
db0e1937 | 163 | { |
0291c246 MK |
164 | const struct tip_addr *addr1 = p1; |
165 | const struct tip_addr *addr2 = p2; | |
db0e1937 MK |
166 | |
167 | return addr1->addr.s_addr == addr2->addr.s_addr; | |
168 | } | |
169 | ||
170 | void bgp_tip_hash_init(struct bgp *bgp) | |
171 | { | |
996c9314 | 172 | bgp->tip_hash = hash_create(bgp_tip_hash_key_make, bgp_tip_hash_cmp, |
3f65c5b1 | 173 | "BGP TIP hash"); |
db0e1937 MK |
174 | } |
175 | ||
176 | void bgp_tip_hash_destroy(struct bgp *bgp) | |
177 | { | |
178 | if (bgp->tip_hash == NULL) | |
179 | return; | |
180 | hash_clean(bgp->tip_hash, bgp_tip_hash_free); | |
181 | hash_free(bgp->tip_hash); | |
182 | bgp->tip_hash = NULL; | |
183 | } | |
184 | ||
185 | void bgp_tip_add(struct bgp *bgp, struct in_addr *tip) | |
186 | { | |
0291c246 MK |
187 | struct tip_addr tmp; |
188 | struct tip_addr *addr; | |
db0e1937 MK |
189 | |
190 | tmp.addr = *tip; | |
191 | ||
192 | addr = hash_get(bgp->tip_hash, &tmp, bgp_tip_hash_alloc); | |
193 | if (!addr) | |
194 | return; | |
195 | ||
196 | addr->refcnt++; | |
197 | } | |
198 | ||
199 | void bgp_tip_del(struct bgp *bgp, struct in_addr *tip) | |
200 | { | |
0291c246 MK |
201 | struct tip_addr tmp; |
202 | struct tip_addr *addr; | |
db0e1937 MK |
203 | |
204 | tmp.addr = *tip; | |
205 | ||
206 | addr = hash_lookup(bgp->tip_hash, &tmp); | |
207 | /* may have been deleted earlier by bgp_interface_down() */ | |
208 | if (addr == NULL) | |
209 | return; | |
210 | ||
211 | addr->refcnt--; | |
212 | ||
213 | if (addr->refcnt == 0) { | |
214 | hash_release(bgp->tip_hash, addr); | |
215 | XFREE(MTYPE_TIP_ADDR, addr); | |
216 | } | |
217 | } | |
10f9bf3f | 218 | |
af97a18b DS |
219 | /* BGP own address structure */ |
220 | struct bgp_addr { | |
2ec802d1 | 221 | struct prefix p; |
f4c2fb93 | 222 | struct list *ifp_name_list; |
af97a18b DS |
223 | }; |
224 | ||
e3b78da8 | 225 | static void show_address_entry(struct hash_bucket *bucket, void *args) |
af97a18b DS |
226 | { |
227 | struct vty *vty = (struct vty *)args; | |
e3b78da8 | 228 | struct bgp_addr *addr = (struct bgp_addr *)bucket->data; |
f4c2fb93 DS |
229 | char *name; |
230 | struct listnode *node; | |
949b0f24 | 231 | char str[INET6_ADDRSTRLEN] = {0}; |
232 | ||
e61f7c0a | 233 | vty_out(vty, "addr: %s, count: %d : ", |
2ec802d1 | 234 | inet_ntop(addr->p.family, &(addr->p.u.prefix), |
e61f7c0a DS |
235 | str, INET6_ADDRSTRLEN), |
236 | addr->ifp_name_list->count); | |
f4c2fb93 DS |
237 | |
238 | for (ALL_LIST_ELEMENTS_RO(addr->ifp_name_list, node, name)) { | |
239 | vty_out(vty, " %s,", name); | |
240 | } | |
241 | ||
242 | vty_out(vty, "\n"); | |
af97a18b DS |
243 | } |
244 | ||
245 | void bgp_nexthop_show_address_hash(struct vty *vty, struct bgp *bgp) | |
246 | { | |
247 | hash_iterate(bgp->address_hash, | |
e3b78da8 | 248 | (void (*)(struct hash_bucket *, void *))show_address_entry, |
af97a18b DS |
249 | vty); |
250 | } | |
251 | ||
f4c2fb93 DS |
252 | static void bgp_address_hash_string_del(void *val) |
253 | { | |
254 | char *data = val; | |
255 | ||
330cec3d | 256 | XFREE(MTYPE_MARTIAN_STRING, data); |
f4c2fb93 DS |
257 | } |
258 | ||
d62a17ae | 259 | static void *bgp_address_hash_alloc(void *p) |
10f9bf3f | 260 | { |
949b0f24 | 261 | struct bgp_addr *copy_addr = p; |
262 | struct bgp_addr *addr = NULL; | |
10f9bf3f | 263 | |
d62a17ae | 264 | addr = XMALLOC(MTYPE_BGP_ADDR, sizeof(struct bgp_addr)); |
2ec802d1 | 265 | prefix_copy(&addr->p, ©_addr->p); |
10f9bf3f | 266 | |
f4c2fb93 DS |
267 | addr->ifp_name_list = list_new(); |
268 | addr->ifp_name_list->del = bgp_address_hash_string_del; | |
269 | ||
d62a17ae | 270 | return addr; |
10f9bf3f JBD |
271 | } |
272 | ||
f4c2fb93 | 273 | static void bgp_address_hash_free(void *data) |
37d361e7 | 274 | { |
f4c2fb93 DS |
275 | struct bgp_addr *addr = data; |
276 | ||
6a154c88 | 277 | list_delete(&addr->ifp_name_list); |
d62a17ae | 278 | XFREE(MTYPE_BGP_ADDR, addr); |
37d361e7 RW |
279 | } |
280 | ||
d8b87afe | 281 | static unsigned int bgp_address_hash_key_make(const void *p) |
10f9bf3f | 282 | { |
d62a17ae | 283 | const struct bgp_addr *addr = p; |
10f9bf3f | 284 | |
2ec802d1 | 285 | return prefix_hash_key(&addr->p); |
10f9bf3f JBD |
286 | } |
287 | ||
74df8d6d | 288 | static bool bgp_address_hash_cmp(const void *p1, const void *p2) |
10f9bf3f | 289 | { |
d62a17ae | 290 | const struct bgp_addr *addr1 = p1; |
291 | const struct bgp_addr *addr2 = p2; | |
10f9bf3f | 292 | |
2ec802d1 | 293 | return prefix_same(&addr1->p, &addr2->p); |
10f9bf3f JBD |
294 | } |
295 | ||
d62a17ae | 296 | void bgp_address_init(struct bgp *bgp) |
10f9bf3f | 297 | { |
996c9314 LB |
298 | bgp->address_hash = |
299 | hash_create(bgp_address_hash_key_make, bgp_address_hash_cmp, | |
949b0f24 | 300 | "BGP Connected Address Hash"); |
10f9bf3f JBD |
301 | } |
302 | ||
d62a17ae | 303 | void bgp_address_destroy(struct bgp *bgp) |
bb86c601 | 304 | { |
d62a17ae | 305 | if (bgp->address_hash == NULL) |
306 | return; | |
307 | hash_clean(bgp->address_hash, bgp_address_hash_free); | |
308 | hash_free(bgp->address_hash); | |
309 | bgp->address_hash = NULL; | |
bb86c601 LB |
310 | } |
311 | ||
f4c2fb93 DS |
312 | static void bgp_address_add(struct bgp *bgp, struct connected *ifc, |
313 | struct prefix *p) | |
10f9bf3f | 314 | { |
d62a17ae | 315 | struct bgp_addr tmp; |
316 | struct bgp_addr *addr; | |
f4c2fb93 DS |
317 | struct listnode *node; |
318 | char *name; | |
10f9bf3f | 319 | |
2ec802d1 | 320 | tmp.p = *p; |
949b0f24 | 321 | |
2ec802d1 DS |
322 | if (tmp.p.family == AF_INET) |
323 | tmp.p.prefixlen = IPV4_MAX_BITLEN; | |
324 | else if (tmp.p.family == AF_INET6) | |
325 | tmp.p.prefixlen = IPV6_MAX_BITLEN; | |
10f9bf3f | 326 | |
d62a17ae | 327 | addr = hash_get(bgp->address_hash, &tmp, bgp_address_hash_alloc); |
5ce10e92 | 328 | |
f4c2fb93 DS |
329 | for (ALL_LIST_ELEMENTS_RO(addr->ifp_name_list, node, name)) { |
330 | if (strcmp(ifc->ifp->name, name) == 0) | |
331 | break; | |
332 | } | |
333 | if (!node) { | |
330cec3d | 334 | name = XSTRDUP(MTYPE_MARTIAN_STRING, ifc->ifp->name); |
f4c2fb93 DS |
335 | listnode_add(addr->ifp_name_list, name); |
336 | } | |
10f9bf3f JBD |
337 | } |
338 | ||
f4c2fb93 DS |
339 | static void bgp_address_del(struct bgp *bgp, struct connected *ifc, |
340 | struct prefix *p) | |
10f9bf3f | 341 | { |
d62a17ae | 342 | struct bgp_addr tmp; |
343 | struct bgp_addr *addr; | |
f4c2fb93 DS |
344 | struct listnode *node; |
345 | char *name; | |
10f9bf3f | 346 | |
2ec802d1 | 347 | tmp.p = *p; |
949b0f24 | 348 | |
2ec802d1 DS |
349 | if (tmp.p.family == AF_INET) |
350 | tmp.p.prefixlen = IPV4_MAX_BITLEN; | |
351 | else if (tmp.p.family == AF_INET6) | |
352 | tmp.p.prefixlen = IPV6_MAX_BITLEN; | |
10f9bf3f | 353 | |
d62a17ae | 354 | addr = hash_lookup(bgp->address_hash, &tmp); |
355 | /* may have been deleted earlier by bgp_interface_down() */ | |
356 | if (addr == NULL) | |
357 | return; | |
9e47abd8 | 358 | |
f4c2fb93 DS |
359 | for (ALL_LIST_ELEMENTS_RO(addr->ifp_name_list, node, name)) { |
360 | if (strcmp(ifc->ifp->name, name) == 0) | |
361 | break; | |
362 | } | |
10f9bf3f | 363 | |
b9129915 | 364 | if (node) { |
f4c2fb93 | 365 | list_delete_node(addr->ifp_name_list, node); |
b9129915 DS |
366 | XFREE(MTYPE_MARTIAN_STRING, name); |
367 | } | |
f4c2fb93 DS |
368 | |
369 | if (addr->ifp_name_list->count == 0) { | |
d62a17ae | 370 | hash_release(bgp->address_hash, addr); |
6a154c88 | 371 | list_delete(&addr->ifp_name_list); |
d62a17ae | 372 | XFREE(MTYPE_BGP_ADDR, addr); |
373 | } | |
10f9bf3f JBD |
374 | } |
375 | ||
6b0655a2 | 376 | |
d62a17ae | 377 | struct bgp_connected_ref { |
378 | unsigned int refcnt; | |
718e3744 | 379 | }; |
380 | ||
d62a17ae | 381 | void bgp_connected_add(struct bgp *bgp, struct connected *ifc) |
718e3744 | 382 | { |
d62a17ae | 383 | struct prefix p; |
384 | struct prefix *addr; | |
9bcb3eef | 385 | struct bgp_dest *dest; |
d62a17ae | 386 | struct bgp_connected_ref *bc; |
387 | struct listnode *node, *nnode; | |
388 | struct peer *peer; | |
389 | ||
390 | addr = ifc->address; | |
391 | ||
392 | p = *(CONNECTED_PREFIX(ifc)); | |
393 | if (addr->family == AF_INET) { | |
394 | apply_mask_ipv4((struct prefix_ipv4 *)&p); | |
395 | ||
396 | if (prefix_ipv4_any((struct prefix_ipv4 *)&p)) | |
397 | return; | |
398 | ||
f4c2fb93 | 399 | bgp_address_add(bgp, ifc, addr); |
d62a17ae | 400 | |
9bcb3eef DS |
401 | dest = bgp_node_get(bgp->connected_table[AFI_IP], |
402 | (struct prefix *)&p); | |
403 | bc = bgp_dest_get_bgp_connected_ref_info(dest); | |
3d9dbdbe | 404 | if (bc) |
d62a17ae | 405 | bc->refcnt++; |
3d9dbdbe | 406 | else { |
d62a17ae | 407 | bc = XCALLOC(MTYPE_BGP_CONN, |
408 | sizeof(struct bgp_connected_ref)); | |
409 | bc->refcnt = 1; | |
9bcb3eef | 410 | bgp_dest_set_bgp_connected_ref_info(dest, bc); |
d62a17ae | 411 | } |
8ffedcea | 412 | |
d62a17ae | 413 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { |
414 | if (peer->conf_if | |
415 | && (strcmp(peer->conf_if, ifc->ifp->name) == 0) | |
416 | && peer->status != Established | |
417 | && !CHECK_FLAG(peer->flags, | |
418 | PEER_FLAG_IFPEER_V6ONLY)) { | |
419 | if (peer_active(peer)) | |
420 | BGP_EVENT_ADD(peer, BGP_Stop); | |
421 | BGP_EVENT_ADD(peer, BGP_Start); | |
422 | } | |
423 | } | |
424 | } else if (addr->family == AF_INET6) { | |
425 | apply_mask_ipv6((struct prefix_ipv6 *)&p); | |
426 | ||
427 | if (IN6_IS_ADDR_UNSPECIFIED(&p.u.prefix6)) | |
428 | return; | |
429 | ||
430 | if (IN6_IS_ADDR_LINKLOCAL(&p.u.prefix6)) | |
431 | return; | |
432 | ||
949b0f24 | 433 | bgp_address_add(bgp, ifc, addr); |
434 | ||
9bcb3eef DS |
435 | dest = bgp_node_get(bgp->connected_table[AFI_IP6], |
436 | (struct prefix *)&p); | |
3d9dbdbe | 437 | |
9bcb3eef | 438 | bc = bgp_dest_get_bgp_connected_ref_info(dest); |
3d9dbdbe | 439 | if (bc) |
d62a17ae | 440 | bc->refcnt++; |
3d9dbdbe | 441 | else { |
d62a17ae | 442 | bc = XCALLOC(MTYPE_BGP_CONN, |
443 | sizeof(struct bgp_connected_ref)); | |
444 | bc->refcnt = 1; | |
9bcb3eef | 445 | bgp_dest_set_bgp_connected_ref_info(dest, bc); |
d62a17ae | 446 | } |
718e3744 | 447 | } |
718e3744 | 448 | } |
449 | ||
d62a17ae | 450 | void bgp_connected_delete(struct bgp *bgp, struct connected *ifc) |
718e3744 | 451 | { |
d62a17ae | 452 | struct prefix p; |
453 | struct prefix *addr; | |
9bcb3eef | 454 | struct bgp_dest *dest = NULL; |
d62a17ae | 455 | struct bgp_connected_ref *bc; |
718e3744 | 456 | |
d62a17ae | 457 | addr = ifc->address; |
718e3744 | 458 | |
d62a17ae | 459 | p = *(CONNECTED_PREFIX(ifc)); |
f6bdc080 | 460 | apply_mask(&p); |
d62a17ae | 461 | if (addr->family == AF_INET) { |
d62a17ae | 462 | if (prefix_ipv4_any((struct prefix_ipv4 *)&p)) |
463 | return; | |
718e3744 | 464 | |
f4c2fb93 | 465 | bgp_address_del(bgp, ifc, addr); |
10f9bf3f | 466 | |
9bcb3eef | 467 | dest = bgp_node_lookup(bgp->connected_table[AFI_IP], &p); |
d62a17ae | 468 | } else if (addr->family == AF_INET6) { |
d62a17ae | 469 | if (IN6_IS_ADDR_UNSPECIFIED(&p.u.prefix6)) |
470 | return; | |
471 | ||
472 | if (IN6_IS_ADDR_LINKLOCAL(&p.u.prefix6)) | |
473 | return; | |
474 | ||
949b0f24 | 475 | bgp_address_del(bgp, ifc, addr); |
476 | ||
9bcb3eef | 477 | dest = bgp_node_lookup(bgp->connected_table[AFI_IP6], &p); |
f6bdc080 | 478 | } |
d62a17ae | 479 | |
9bcb3eef | 480 | if (!dest) |
f6bdc080 DS |
481 | return; |
482 | ||
9bcb3eef | 483 | bc = bgp_dest_get_bgp_connected_ref_info(dest); |
f6bdc080 DS |
484 | bc->refcnt--; |
485 | if (bc->refcnt == 0) { | |
486 | XFREE(MTYPE_BGP_CONN, bc); | |
9bcb3eef | 487 | bgp_dest_set_bgp_connected_ref_info(dest, NULL); |
718e3744 | 488 | } |
9bcb3eef DS |
489 | bgp_dest_unlock_node(dest); |
490 | bgp_dest_unlock_node(dest); | |
718e3744 | 491 | } |
492 | ||
3292693b DS |
493 | static void bgp_connected_cleanup(struct route_table *table, |
494 | struct route_node *rn) | |
495 | { | |
496 | struct bgp_connected_ref *bc; | |
9bcb3eef | 497 | struct bgp_dest *bn = bgp_dest_from_rnode(rn); |
3292693b | 498 | |
9bcb3eef | 499 | bc = bgp_dest_get_bgp_connected_ref_info(bn); |
3292693b DS |
500 | if (!bc) |
501 | return; | |
502 | ||
503 | bc->refcnt--; | |
504 | if (bc->refcnt == 0) { | |
505 | XFREE(MTYPE_BGP_CONN, bc); | |
9bcb3eef | 506 | bgp_dest_set_bgp_connected_ref_info(bn, NULL); |
3292693b DS |
507 | } |
508 | } | |
509 | ||
3dc339cd | 510 | bool bgp_nexthop_self(struct bgp *bgp, afi_t afi, uint8_t type, |
9bcb3eef DS |
511 | uint8_t sub_type, struct attr *attr, |
512 | struct bgp_dest *dest) | |
718e3744 | 513 | { |
af34d2da | 514 | uint8_t new_afi = afi == AFI_IP ? AF_INET : AF_INET6; |
8c5c49ac | 515 | struct bgp_addr tmp_addr = {{0}}, *addr = NULL; |
949b0f24 | 516 | struct tip_addr tmp_tip, *tip = NULL; |
9bcb3eef | 517 | const struct prefix *p = bgp_dest_get_prefix(dest); |
c4fb2504 DS |
518 | bool is_bgp_static_route = |
519 | ((type == ZEBRA_ROUTE_BGP) && (sub_type == BGP_ROUTE_STATIC)) | |
949b0f24 | 520 | ? true |
521 | : false; | |
522 | ||
523 | if (!is_bgp_static_route) | |
af34d2da | 524 | new_afi = BGP_ATTR_NEXTHOP_AFI_IP6(attr) ? AF_INET6 : AF_INET; |
949b0f24 | 525 | |
e26c3055 | 526 | tmp_addr.p.family = new_afi; |
949b0f24 | 527 | switch (new_afi) { |
af34d2da | 528 | case AF_INET: |
949b0f24 | 529 | if (is_bgp_static_route) { |
b54892e0 DS |
530 | tmp_addr.p.u.prefix4 = p->u.prefix4; |
531 | tmp_addr.p.prefixlen = p->prefixlen; | |
949b0f24 | 532 | } else { |
533 | /* Here we need to find out which nexthop to be used*/ | |
c4fb2504 | 534 | if (attr->flag & ATTR_FLAG_BIT(BGP_ATTR_NEXT_HOP)) { |
e26c3055 DS |
535 | tmp_addr.p.u.prefix4 = attr->nexthop; |
536 | tmp_addr.p.prefixlen = IPV4_MAX_BITLEN; | |
c4fb2504 DS |
537 | } else if ((attr->mp_nexthop_len) |
538 | && ((attr->mp_nexthop_len | |
539 | == BGP_ATTR_NHLEN_IPV4) | |
540 | || (attr->mp_nexthop_len | |
541 | == BGP_ATTR_NHLEN_VPNV4))) { | |
e26c3055 | 542 | tmp_addr.p.u.prefix4 = |
949b0f24 | 543 | attr->mp_nexthop_global_in; |
e26c3055 | 544 | tmp_addr.p.prefixlen = IPV4_MAX_BITLEN; |
949b0f24 | 545 | } else |
3dc339cd | 546 | return false; |
949b0f24 | 547 | } |
548 | break; | |
af34d2da | 549 | case AF_INET6: |
949b0f24 | 550 | if (is_bgp_static_route) { |
b54892e0 DS |
551 | tmp_addr.p.u.prefix6 = p->u.prefix6; |
552 | tmp_addr.p.prefixlen = p->prefixlen; | |
949b0f24 | 553 | } else { |
e26c3055 DS |
554 | tmp_addr.p.u.prefix6 = attr->mp_nexthop_global; |
555 | tmp_addr.p.prefixlen = IPV6_MAX_BITLEN; | |
949b0f24 | 556 | } |
557 | break; | |
558 | default: | |
559 | break; | |
560 | } | |
10f9bf3f | 561 | |
949b0f24 | 562 | addr = hash_lookup(bgp->address_hash, &tmp_addr); |
d62a17ae | 563 | if (addr) |
3dc339cd | 564 | return true; |
718e3744 | 565 | |
3584c85e | 566 | if (new_afi == AF_INET && hashcount(bgp->tip_hash)) { |
949b0f24 | 567 | memset(&tmp_tip, 0, sizeof(struct tip_addr)); |
568 | tmp_tip.addr = attr->nexthop; | |
569 | ||
570 | if (attr->flag & ATTR_FLAG_BIT(BGP_ATTR_NEXT_HOP)) { | |
571 | tmp_tip.addr = attr->nexthop; | |
572 | } else if ((attr->mp_nexthop_len) && | |
2ec802d1 DS |
573 | ((attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV4) |
574 | || (attr->mp_nexthop_len == BGP_ATTR_NHLEN_VPNV4))) { | |
949b0f24 | 575 | tmp_tip.addr = attr->mp_nexthop_global_in; |
576 | } | |
577 | ||
578 | tip = hash_lookup(bgp->tip_hash, &tmp_tip); | |
579 | if (tip) | |
3dc339cd | 580 | return true; |
949b0f24 | 581 | } |
db0e1937 | 582 | |
3dc339cd | 583 | return false; |
718e3744 | 584 | } |
6b0655a2 | 585 | |
3dc339cd | 586 | bool bgp_multiaccess_check_v4(struct in_addr nexthop, struct peer *peer) |
718e3744 | 587 | { |
9bcb3eef DS |
588 | struct bgp_dest *dest1; |
589 | struct bgp_dest *dest2; | |
d62a17ae | 590 | struct prefix p; |
591 | int ret; | |
592 | ||
593 | p.family = AF_INET; | |
594 | p.prefixlen = IPV4_MAX_BITLEN; | |
595 | p.u.prefix4 = nexthop; | |
596 | ||
9bcb3eef DS |
597 | dest1 = bgp_node_match(peer->bgp->connected_table[AFI_IP], &p); |
598 | if (!dest1) | |
3dc339cd | 599 | return false; |
d62a17ae | 600 | |
601 | p.family = AF_INET; | |
602 | p.prefixlen = IPV4_MAX_BITLEN; | |
603 | p.u.prefix4 = peer->su.sin.sin_addr; | |
604 | ||
9bcb3eef DS |
605 | dest2 = bgp_node_match(peer->bgp->connected_table[AFI_IP], &p); |
606 | if (!dest2) { | |
607 | bgp_dest_unlock_node(dest1); | |
3dc339cd | 608 | return false; |
d62a17ae | 609 | } |
718e3744 | 610 | |
9bcb3eef | 611 | ret = (dest1 == dest2); |
718e3744 | 612 | |
9bcb3eef DS |
613 | bgp_dest_unlock_node(dest1); |
614 | bgp_dest_unlock_node(dest2); | |
718e3744 | 615 | |
3dc339cd | 616 | return ret; |
718e3744 | 617 | } |
618 | ||
3dc339cd | 619 | bool bgp_multiaccess_check_v6(struct in6_addr nexthop, struct peer *peer) |
737af885 | 620 | { |
9bcb3eef DS |
621 | struct bgp_dest *dest1; |
622 | struct bgp_dest *dest2; | |
737af885 BS |
623 | struct prefix p; |
624 | int ret; | |
625 | ||
626 | p.family = AF_INET6; | |
627 | p.prefixlen = IPV6_MAX_BITLEN; | |
628 | p.u.prefix6 = nexthop; | |
629 | ||
9bcb3eef DS |
630 | dest1 = bgp_node_match(peer->bgp->connected_table[AFI_IP6], &p); |
631 | if (!dest1) | |
3dc339cd | 632 | return false; |
737af885 BS |
633 | |
634 | p.family = AF_INET6; | |
635 | p.prefixlen = IPV6_MAX_BITLEN; | |
636 | p.u.prefix6 = peer->su.sin6.sin6_addr; | |
637 | ||
9bcb3eef DS |
638 | dest2 = bgp_node_match(peer->bgp->connected_table[AFI_IP6], &p); |
639 | if (!dest2) { | |
640 | bgp_dest_unlock_node(dest1); | |
3dc339cd | 641 | return false; |
737af885 BS |
642 | } |
643 | ||
9bcb3eef | 644 | ret = (dest1 == dest2); |
737af885 | 645 | |
9bcb3eef DS |
646 | bgp_dest_unlock_node(dest1); |
647 | bgp_dest_unlock_node(dest2); | |
737af885 BS |
648 | |
649 | return ret; | |
650 | } | |
651 | ||
3dc339cd DA |
652 | bool bgp_subgrp_multiaccess_check_v6(struct in6_addr nexthop, |
653 | struct update_subgroup *subgrp, | |
654 | struct peer *exclude) | |
737af885 | 655 | { |
9bcb3eef | 656 | struct bgp_dest *dest1 = NULL, *dest2 = NULL; |
737af885 BS |
657 | struct peer_af *paf = NULL; |
658 | struct prefix p = {0}, np = {0}; | |
659 | struct bgp *bgp = NULL; | |
660 | ||
661 | np.family = AF_INET6; | |
662 | np.prefixlen = IPV6_MAX_BITLEN; | |
663 | np.u.prefix6 = nexthop; | |
664 | ||
665 | p.family = AF_INET; | |
666 | p.prefixlen = IPV6_MAX_BITLEN; | |
667 | ||
668 | bgp = SUBGRP_INST(subgrp); | |
9bcb3eef DS |
669 | dest1 = bgp_node_match(bgp->connected_table[AFI_IP6], &np); |
670 | if (!dest1) | |
3dc339cd | 671 | return false; |
737af885 BS |
672 | |
673 | SUBGRP_FOREACH_PEER (subgrp, paf) { | |
a3b72539 | 674 | /* Skip peer we're told to exclude - e.g., source of route. */ |
675 | if (paf->peer == exclude) | |
676 | continue; | |
737af885 BS |
677 | |
678 | p.u.prefix6 = paf->peer->su.sin6.sin6_addr; | |
9bcb3eef DS |
679 | dest2 = bgp_node_match(bgp->connected_table[AFI_IP6], &p); |
680 | if (dest1 == dest2) { | |
681 | bgp_dest_unlock_node(dest1); | |
682 | bgp_dest_unlock_node(dest2); | |
3dc339cd | 683 | return true; |
737af885 BS |
684 | } |
685 | ||
9bcb3eef DS |
686 | if (dest2) |
687 | bgp_dest_unlock_node(dest2); | |
737af885 BS |
688 | } |
689 | ||
9bcb3eef | 690 | bgp_dest_unlock_node(dest1); |
3dc339cd | 691 | return false; |
737af885 BS |
692 | } |
693 | ||
3dc339cd DA |
694 | bool bgp_subgrp_multiaccess_check_v4(struct in_addr nexthop, |
695 | struct update_subgroup *subgrp, | |
696 | struct peer *exclude) | |
65d4e0c6 | 697 | { |
9bcb3eef | 698 | struct bgp_dest *dest1, *dest2; |
65d4e0c6 DS |
699 | struct peer_af *paf; |
700 | struct prefix p, np; | |
a2b6e694 | 701 | struct bgp *bgp; |
65d4e0c6 DS |
702 | |
703 | np.family = AF_INET; | |
704 | np.prefixlen = IPV4_MAX_BITLEN; | |
705 | np.u.prefix4 = nexthop; | |
706 | ||
707 | p.family = AF_INET; | |
708 | p.prefixlen = IPV4_MAX_BITLEN; | |
709 | ||
65d4e0c6 | 710 | bgp = SUBGRP_INST(subgrp); |
9bcb3eef DS |
711 | dest1 = bgp_node_match(bgp->connected_table[AFI_IP], &np); |
712 | if (!dest1) | |
3dc339cd | 713 | return false; |
65d4e0c6 | 714 | |
996c9314 | 715 | SUBGRP_FOREACH_PEER (subgrp, paf) { |
a3b72539 | 716 | /* Skip peer we're told to exclude - e.g., source of route. */ |
717 | if (paf->peer == exclude) | |
718 | continue; | |
719 | ||
65d4e0c6 DS |
720 | p.u.prefix4 = paf->peer->su.sin.sin_addr; |
721 | ||
9bcb3eef DS |
722 | dest2 = bgp_node_match(bgp->connected_table[AFI_IP], &p); |
723 | if (dest1 == dest2) { | |
724 | bgp_dest_unlock_node(dest1); | |
725 | bgp_dest_unlock_node(dest2); | |
3dc339cd | 726 | return true; |
65d4e0c6 DS |
727 | } |
728 | ||
9bcb3eef DS |
729 | if (dest2) |
730 | bgp_dest_unlock_node(dest2); | |
65d4e0c6 DS |
731 | } |
732 | ||
9bcb3eef | 733 | bgp_dest_unlock_node(dest1); |
3dc339cd | 734 | return false; |
65d4e0c6 DS |
735 | } |
736 | ||
5d76a53d | 737 | static void bgp_show_nexthop_paths(struct vty *vty, struct bgp *bgp, |
738 | struct bgp_nexthop_cache *bnc) | |
739 | { | |
9bcb3eef | 740 | struct bgp_dest *dest; |
5d76a53d | 741 | struct bgp_path_info *path; |
742 | int afi; | |
743 | safi_t safi; | |
744 | struct bgp_table *table; | |
745 | struct bgp *bgp_path; | |
746 | char buf1[BUFSIZ]; | |
747 | ||
748 | vty_out(vty, " Paths:\n"); | |
749 | LIST_FOREACH (path, &(bnc->paths), nh_thread) { | |
9bcb3eef DS |
750 | dest = path->net; |
751 | assert(dest && bgp_dest_table(dest)); | |
752 | afi = family2afi(bgp_dest_get_prefix(dest)->family); | |
753 | table = bgp_dest_table(dest); | |
5d76a53d | 754 | safi = table->safi; |
755 | bgp_path = table->bgp; | |
756 | ||
9bcb3eef DS |
757 | if (dest->pdest) { |
758 | prefix_rd2str((struct prefix_rd *)bgp_dest_get_prefix(dest->pdest), | |
5d76a53d | 759 | buf1, sizeof(buf1)); |
56ca3b5b | 760 | vty_out(vty, " %d/%d %pBD RD %s %s flags 0x%x\n", |
9bcb3eef | 761 | afi, safi, dest, buf1, bgp_path->name_pretty, path->flags); |
5d76a53d | 762 | } else |
56ca3b5b | 763 | vty_out(vty, " %d/%d %pBD %s flags 0x%x\n", |
9bcb3eef | 764 | afi, safi, dest, bgp_path->name_pretty, path->flags); |
5d76a53d | 765 | } |
766 | } | |
767 | ||
996c9314 | 768 | static void bgp_show_nexthops_detail(struct vty *vty, struct bgp *bgp, |
e22ac3ee DS |
769 | struct bgp_nexthop_cache *bnc) |
770 | { | |
771 | char buf[PREFIX2STR_BUFFER]; | |
772 | struct nexthop *nexthop; | |
773 | ||
5d76a53d | 774 | for (nexthop = bnc->nexthop; nexthop; nexthop = nexthop->next) { |
e22ac3ee DS |
775 | switch (nexthop->type) { |
776 | case NEXTHOP_TYPE_IPV6: | |
777 | vty_out(vty, " gate %s\n", | |
996c9314 LB |
778 | inet_ntop(AF_INET6, &nexthop->gate.ipv6, buf, |
779 | sizeof(buf))); | |
e22ac3ee DS |
780 | break; |
781 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
782 | vty_out(vty, " gate %s, if %s\n", | |
996c9314 LB |
783 | inet_ntop(AF_INET6, &nexthop->gate.ipv6, buf, |
784 | sizeof(buf)), | |
785 | ifindex2ifname(nexthop->ifindex, bgp->vrf_id)); | |
e22ac3ee DS |
786 | break; |
787 | case NEXTHOP_TYPE_IPV4: | |
788 | vty_out(vty, " gate %s\n", | |
996c9314 LB |
789 | inet_ntop(AF_INET, &nexthop->gate.ipv4, buf, |
790 | sizeof(buf))); | |
e22ac3ee DS |
791 | break; |
792 | case NEXTHOP_TYPE_IFINDEX: | |
793 | vty_out(vty, " if %s\n", | |
996c9314 | 794 | ifindex2ifname(nexthop->ifindex, bgp->vrf_id)); |
e22ac3ee DS |
795 | break; |
796 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
797 | vty_out(vty, " gate %s, if %s\n", | |
996c9314 LB |
798 | inet_ntop(AF_INET, &nexthop->gate.ipv4, buf, |
799 | sizeof(buf)), | |
800 | ifindex2ifname(nexthop->ifindex, bgp->vrf_id)); | |
e22ac3ee DS |
801 | break; |
802 | case NEXTHOP_TYPE_BLACKHOLE: | |
803 | vty_out(vty, " blackhole\n"); | |
804 | break; | |
805 | default: | |
996c9314 | 806 | vty_out(vty, " invalid nexthop type %u\n", |
e22ac3ee DS |
807 | nexthop->type); |
808 | } | |
5d76a53d | 809 | } |
e22ac3ee DS |
810 | } |
811 | ||
5d76a53d | 812 | static void bgp_show_nexthop(struct vty *vty, struct bgp *bgp, |
5d76a53d | 813 | struct bgp_nexthop_cache *bnc, |
814 | bool specific) | |
fb018d25 | 815 | { |
d62a17ae | 816 | char buf[PREFIX2STR_BUFFER]; |
d62a17ae | 817 | time_t tbuf; |
5d76a53d | 818 | struct peer *peer; |
5d76a53d | 819 | |
820 | peer = (struct peer *)bnc->nht_info; | |
821 | ||
545aeef1 RW |
822 | if (bnc->srte_color) |
823 | vty_out(vty, " SR-TE color %u -", bnc->srte_color); | |
5d76a53d | 824 | if (CHECK_FLAG(bnc->flags, BGP_NEXTHOP_VALID)) { |
825 | vty_out(vty, " %s valid [IGP metric %d], #paths %d", | |
f663c581 RW |
826 | inet_ntop(bnc->prefix.family, &bnc->prefix.u.prefix, |
827 | buf, sizeof(buf)), | |
5d76a53d | 828 | bnc->metric, bnc->path_count); |
829 | if (peer) | |
830 | vty_out(vty, ", peer %s", peer->host); | |
831 | vty_out(vty, "\n"); | |
832 | bgp_show_nexthops_detail(vty, bgp, bnc); | |
833 | } else { | |
834 | vty_out(vty, " %s invalid, #paths %d", | |
f663c581 RW |
835 | inet_ntop(bnc->prefix.family, &bnc->prefix.u.prefix, |
836 | buf, sizeof(buf)), | |
5d76a53d | 837 | bnc->path_count); |
838 | if (peer) | |
839 | vty_out(vty, ", peer %s", peer->host); | |
840 | vty_out(vty, "\n"); | |
841 | if (CHECK_FLAG(bnc->flags, BGP_NEXTHOP_CONNECTED)) | |
842 | vty_out(vty, " Must be Connected\n"); | |
843 | if (!CHECK_FLAG(bnc->flags, BGP_NEXTHOP_REGISTERED)) | |
844 | vty_out(vty, " Is not Registered\n"); | |
845 | } | |
846 | tbuf = time(NULL) - (bgp_clock() - bnc->last_update); | |
847 | vty_out(vty, " Last update: %s", ctime(&tbuf)); | |
848 | vty_out(vty, "\n"); | |
849 | ||
850 | /* show paths dependent on nexthop, if needed. */ | |
851 | if (specific) | |
852 | bgp_show_nexthop_paths(vty, bgp, bnc); | |
853 | } | |
854 | ||
855 | static void bgp_show_nexthops(struct vty *vty, struct bgp *bgp, | |
856 | bool import_table) | |
857 | { | |
5d76a53d | 858 | struct bgp_nexthop_cache *bnc; |
d62a17ae | 859 | afi_t afi; |
f663c581 | 860 | struct bgp_nexthop_cache_head(*tree)[AFI_MAX]; |
d62a17ae | 861 | |
05e47722 PG |
862 | if (import_table) |
863 | vty_out(vty, "Current BGP import check cache:\n"); | |
864 | else | |
865 | vty_out(vty, "Current BGP nexthop cache:\n"); | |
866 | if (import_table) | |
f663c581 | 867 | tree = &bgp->import_check_table; |
05e47722 | 868 | else |
f663c581 | 869 | tree = &bgp->nexthop_cache_table; |
d62a17ae | 870 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
f663c581 RW |
871 | frr_each (bgp_nexthop_cache, &(*tree)[afi], bnc) |
872 | bgp_show_nexthop(vty, bgp, bnc, false); | |
fb018d25 | 873 | } |
f186de26 | 874 | } |
875 | ||
d62a17ae | 876 | static int show_ip_bgp_nexthop_table(struct vty *vty, const char *name, |
5d76a53d | 877 | const char *nhopip_str, |
878 | bool import_table) | |
f186de26 | 879 | { |
d62a17ae | 880 | struct bgp *bgp; |
881 | ||
882 | if (name) | |
883 | bgp = bgp_lookup_by_name(name); | |
884 | else | |
885 | bgp = bgp_get_default(); | |
886 | if (!bgp) { | |
887 | vty_out(vty, "%% No such BGP instance exist\n"); | |
888 | return CMD_WARNING; | |
889 | } | |
f186de26 | 890 | |
5d76a53d | 891 | if (nhopip_str) { |
892 | struct prefix nhop; | |
f663c581 | 893 | struct bgp_nexthop_cache_head (*tree)[AFI_MAX]; |
5d76a53d | 894 | struct bgp_nexthop_cache *bnc; |
895 | ||
896 | if (!str2prefix(nhopip_str, &nhop)) { | |
897 | vty_out(vty, "nexthop address is malformed\n"); | |
898 | return CMD_WARNING; | |
899 | } | |
f663c581 RW |
900 | tree = import_table ? &bgp->import_check_table |
901 | : &bgp->nexthop_cache_table; | |
902 | bnc = bnc_find(tree[family2afi(nhop.family)], &nhop, 0); | |
5d76a53d | 903 | if (!bnc) { |
904 | vty_out(vty, "specified nexthop does not have entry\n"); | |
905 | return CMD_SUCCESS; | |
906 | } | |
f663c581 | 907 | bgp_show_nexthop(vty, bgp, bnc, true); |
5d76a53d | 908 | } else |
909 | bgp_show_nexthops(vty, bgp, import_table); | |
f186de26 | 910 | |
d62a17ae | 911 | return CMD_SUCCESS; |
fb018d25 DS |
912 | } |
913 | ||
d62a17ae | 914 | static void bgp_show_all_instances_nexthops_vty(struct vty *vty) |
f186de26 | 915 | { |
d62a17ae | 916 | struct listnode *node, *nnode; |
917 | struct bgp *bgp; | |
918 | ||
919 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) { | |
920 | vty_out(vty, "\nInstance %s:\n", | |
921 | (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
5742e42b | 922 | ? VRF_DEFAULT_NAME |
d62a17ae | 923 | : bgp->name); |
5d76a53d | 924 | bgp_show_nexthops(vty, bgp, false); |
d62a17ae | 925 | } |
f186de26 | 926 | } |
927 | ||
fb018d25 DS |
928 | DEFUN (show_ip_bgp_nexthop, |
929 | show_ip_bgp_nexthop_cmd, | |
5d76a53d | 930 | "show [ip] bgp [<view|vrf> VIEWVRFNAME] nexthop [<A.B.C.D|X:X::X:X>] [detail]", |
50ef26d4 | 931 | SHOW_STR |
932 | IP_STR | |
933 | BGP_STR | |
8386ac43 | 934 | BGP_INSTANCE_HELP_STR |
3a2d747c | 935 | "BGP nexthop table\n" |
5d76a53d | 936 | "IPv4 nexthop address\n" |
937 | "IPv6 nexthop address\n" | |
3a2d747c | 938 | "Show detailed information\n") |
50ef26d4 | 939 | { |
d62a17ae | 940 | int idx = 0; |
5d76a53d | 941 | int nh_idx = 0; |
b7ada628 | 942 | char *vrf = NULL; |
5d76a53d | 943 | char *nhop_ip = NULL; |
b7ada628 DS |
944 | |
945 | if (argv_find(argv, argc, "view", &idx) | |
946 | || argv_find(argv, argc, "vrf", &idx)) | |
947 | vrf = argv[++idx]->arg; | |
05e47722 | 948 | |
5d76a53d | 949 | if (argv_find(argv, argc, "A.B.C.D", &nh_idx) |
950 | || argv_find(argv, argc, "X:X::X:X", &nh_idx)) | |
951 | nhop_ip = argv[nh_idx]->arg; | |
952 | ||
953 | return show_ip_bgp_nexthop_table(vty, vrf, nhop_ip, false); | |
05e47722 PG |
954 | } |
955 | ||
956 | DEFUN (show_ip_bgp_import_check, | |
957 | show_ip_bgp_import_check_cmd, | |
958 | "show [ip] bgp [<view|vrf> VIEWVRFNAME] import-check-table [detail]", | |
959 | SHOW_STR | |
960 | IP_STR | |
961 | BGP_STR | |
962 | BGP_INSTANCE_HELP_STR | |
963 | "BGP import check table\n" | |
964 | "Show detailed information\n") | |
965 | { | |
966 | int idx = 0; | |
967 | char *vrf = NULL; | |
968 | ||
969 | if (argv_find(argv, argc, "view", &idx) | |
970 | || argv_find(argv, argc, "vrf", &idx)) | |
971 | vrf = argv[++idx]->arg; | |
5d76a53d | 972 | |
973 | return show_ip_bgp_nexthop_table(vty, vrf, NULL, true); | |
50ef26d4 | 974 | } |
975 | ||
f186de26 | 976 | DEFUN (show_ip_bgp_instance_all_nexthop, |
977 | show_ip_bgp_instance_all_nexthop_cmd, | |
bec37ba5 | 978 | "show [ip] bgp <view|vrf> all nexthop", |
f186de26 | 979 | SHOW_STR |
980 | IP_STR | |
981 | BGP_STR | |
982 | BGP_INSTANCE_ALL_HELP_STR | |
983 | "BGP nexthop table\n") | |
984 | { | |
d62a17ae | 985 | bgp_show_all_instances_nexthops_vty(vty); |
986 | return CMD_SUCCESS; | |
f186de26 | 987 | } |
988 | ||
d62a17ae | 989 | void bgp_scan_init(struct bgp *bgp) |
718e3744 | 990 | { |
d62a17ae | 991 | afi_t afi; |
992 | ||
993 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
f663c581 RW |
994 | bgp_nexthop_cache_init(&bgp->nexthop_cache_table[afi]); |
995 | bgp_nexthop_cache_init(&bgp->import_check_table[afi]); | |
960035b2 PZ |
996 | bgp->connected_table[afi] = bgp_table_init(bgp, afi, |
997 | SAFI_UNICAST); | |
d62a17ae | 998 | } |
fc9a856f DS |
999 | } |
1000 | ||
d62a17ae | 1001 | void bgp_scan_vty_init(void) |
fc9a856f | 1002 | { |
d62a17ae | 1003 | install_element(VIEW_NODE, &show_ip_bgp_nexthop_cmd); |
05e47722 | 1004 | install_element(VIEW_NODE, &show_ip_bgp_import_check_cmd); |
d62a17ae | 1005 | install_element(VIEW_NODE, &show_ip_bgp_instance_all_nexthop_cmd); |
718e3744 | 1006 | } |
228da428 | 1007 | |
d62a17ae | 1008 | void bgp_scan_finish(struct bgp *bgp) |
228da428 | 1009 | { |
d62a17ae | 1010 | afi_t afi; |
6c88b44d | 1011 | |
d62a17ae | 1012 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
1013 | /* Only the current one needs to be reset. */ | |
f663c581 RW |
1014 | bgp_nexthop_cache_reset(&bgp->nexthop_cache_table[afi]); |
1015 | bgp_nexthop_cache_reset(&bgp->import_check_table[afi]); | |
228da428 | 1016 | |
3292693b DS |
1017 | bgp->connected_table[afi]->route_table->cleanup = |
1018 | bgp_connected_cleanup; | |
d62a17ae | 1019 | bgp_table_unlock(bgp->connected_table[afi]); |
1020 | bgp->connected_table[afi] = NULL; | |
d62a17ae | 1021 | } |
228da428 | 1022 | } |