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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" |
987a720a | 36 | #include "printfrr.h" |
718e3744 | 37 | |
38 | #include "bgpd/bgpd.h" | |
718e3744 | 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 | |
2a99175f | 49 | DEFINE_MTYPE_STATIC(BGPD, MARTIAN_STRING, "BGP Martian Addr Intf String"); |
330cec3d | 50 | |
f663c581 RW |
51 | int bgp_nexthop_cache_compare(const struct bgp_nexthop_cache *a, |
52 | const struct bgp_nexthop_cache *b) | |
fb018d25 | 53 | { |
545aeef1 RW |
54 | if (a->srte_color < b->srte_color) |
55 | return -1; | |
56 | if (a->srte_color > b->srte_color) | |
57 | return 1; | |
58 | ||
f663c581 RW |
59 | return prefix_cmp(&a->prefix, &b->prefix); |
60 | } | |
61 | ||
62 | const char *bnc_str(struct bgp_nexthop_cache *bnc, char *buf, int size) | |
63 | { | |
64 | return prefix2str(&bnc->prefix, buf, size); | |
fb018d25 DS |
65 | } |
66 | ||
d62a17ae | 67 | void bnc_nexthop_free(struct bgp_nexthop_cache *bnc) |
718e3744 | 68 | { |
d62a17ae | 69 | nexthops_free(bnc->nexthop); |
718e3744 | 70 | } |
71 | ||
f663c581 | 72 | struct bgp_nexthop_cache *bnc_new(struct bgp_nexthop_cache_head *tree, |
545aeef1 | 73 | struct prefix *prefix, uint32_t srte_color) |
718e3744 | 74 | { |
d62a17ae | 75 | struct bgp_nexthop_cache *bnc; |
fb018d25 | 76 | |
d62a17ae | 77 | bnc = XCALLOC(MTYPE_BGP_NEXTHOP_CACHE, |
78 | sizeof(struct bgp_nexthop_cache)); | |
f663c581 | 79 | bnc->prefix = *prefix; |
545aeef1 | 80 | bnc->srte_color = srte_color; |
f663c581 | 81 | bnc->tree = tree; |
d62a17ae | 82 | LIST_INIT(&(bnc->paths)); |
f663c581 RW |
83 | bgp_nexthop_cache_add(tree, bnc); |
84 | ||
d62a17ae | 85 | return bnc; |
718e3744 | 86 | } |
87 | ||
e37e1e27 PR |
88 | bool bnc_existing_for_prefix(struct bgp_nexthop_cache *bnc) |
89 | { | |
90 | struct bgp_nexthop_cache *bnc_tmp; | |
91 | ||
92 | frr_each (bgp_nexthop_cache, bnc->tree, bnc_tmp) { | |
93 | if (bnc_tmp == bnc) | |
94 | continue; | |
95 | if (prefix_cmp(&bnc->prefix, &bnc_tmp->prefix) == 0) | |
96 | return true; | |
97 | } | |
98 | return false; | |
99 | } | |
100 | ||
d62a17ae | 101 | void bnc_free(struct bgp_nexthop_cache *bnc) |
718e3744 | 102 | { |
d62a17ae | 103 | bnc_nexthop_free(bnc); |
f663c581 | 104 | bgp_nexthop_cache_del(bnc->tree, bnc); |
d62a17ae | 105 | XFREE(MTYPE_BGP_NEXTHOP_CACHE, bnc); |
718e3744 | 106 | } |
6b0655a2 | 107 | |
f663c581 | 108 | struct bgp_nexthop_cache *bnc_find(struct bgp_nexthop_cache_head *tree, |
545aeef1 | 109 | struct prefix *prefix, uint32_t srte_color) |
f663c581 RW |
110 | { |
111 | struct bgp_nexthop_cache bnc = {}; | |
112 | ||
113 | if (!tree) | |
114 | return NULL; | |
115 | ||
116 | bnc.prefix = *prefix; | |
545aeef1 | 117 | bnc.srte_color = srte_color; |
f663c581 RW |
118 | return bgp_nexthop_cache_find(tree, &bnc); |
119 | } | |
120 | ||
718e3744 | 121 | /* Reset and free all BGP nexthop cache. */ |
f663c581 | 122 | static void bgp_nexthop_cache_reset(struct bgp_nexthop_cache_head *tree) |
718e3744 | 123 | { |
d62a17ae | 124 | struct bgp_nexthop_cache *bnc; |
125 | ||
f663c581 RW |
126 | while (bgp_nexthop_cache_count(tree) > 0) { |
127 | bnc = bgp_nexthop_cache_first(tree); | |
7f040da1 | 128 | |
3d111939 DS |
129 | while (!LIST_EMPTY(&(bnc->paths))) { |
130 | struct bgp_path_info *path = LIST_FIRST(&(bnc->paths)); | |
7f040da1 | 131 | |
3d111939 | 132 | path_nh_map(path, bnc, false); |
d62a17ae | 133 | } |
3d111939 DS |
134 | |
135 | bnc_free(bnc); | |
14315f2d | 136 | } |
718e3744 | 137 | } |
138 | ||
db0e1937 MK |
139 | static void *bgp_tip_hash_alloc(void *p) |
140 | { | |
0291c246 MK |
141 | const struct in_addr *val = (const struct in_addr *)p; |
142 | struct tip_addr *addr; | |
db0e1937 MK |
143 | |
144 | addr = XMALLOC(MTYPE_TIP_ADDR, sizeof(struct tip_addr)); | |
145 | addr->refcnt = 0; | |
146 | addr->addr.s_addr = val->s_addr; | |
147 | ||
148 | return addr; | |
149 | } | |
150 | ||
151 | static void bgp_tip_hash_free(void *addr) | |
152 | { | |
153 | XFREE(MTYPE_TIP_ADDR, addr); | |
154 | } | |
155 | ||
d8b87afe | 156 | static unsigned int bgp_tip_hash_key_make(const void *p) |
db0e1937 | 157 | { |
0291c246 | 158 | const struct tip_addr *addr = p; |
db0e1937 MK |
159 | |
160 | return jhash_1word(addr->addr.s_addr, 0); | |
161 | } | |
162 | ||
74df8d6d | 163 | static bool bgp_tip_hash_cmp(const void *p1, const void *p2) |
db0e1937 | 164 | { |
0291c246 MK |
165 | const struct tip_addr *addr1 = p1; |
166 | const struct tip_addr *addr2 = p2; | |
db0e1937 MK |
167 | |
168 | return addr1->addr.s_addr == addr2->addr.s_addr; | |
169 | } | |
170 | ||
171 | void bgp_tip_hash_init(struct bgp *bgp) | |
172 | { | |
996c9314 | 173 | bgp->tip_hash = hash_create(bgp_tip_hash_key_make, bgp_tip_hash_cmp, |
3f65c5b1 | 174 | "BGP TIP hash"); |
db0e1937 MK |
175 | } |
176 | ||
177 | void bgp_tip_hash_destroy(struct bgp *bgp) | |
178 | { | |
179 | if (bgp->tip_hash == NULL) | |
180 | return; | |
181 | hash_clean(bgp->tip_hash, bgp_tip_hash_free); | |
182 | hash_free(bgp->tip_hash); | |
183 | bgp->tip_hash = NULL; | |
184 | } | |
185 | ||
186 | void bgp_tip_add(struct bgp *bgp, struct in_addr *tip) | |
187 | { | |
0291c246 MK |
188 | struct tip_addr tmp; |
189 | struct tip_addr *addr; | |
db0e1937 MK |
190 | |
191 | tmp.addr = *tip; | |
192 | ||
193 | addr = hash_get(bgp->tip_hash, &tmp, bgp_tip_hash_alloc); | |
194 | if (!addr) | |
195 | return; | |
196 | ||
197 | addr->refcnt++; | |
198 | } | |
199 | ||
200 | void bgp_tip_del(struct bgp *bgp, struct in_addr *tip) | |
201 | { | |
0291c246 MK |
202 | struct tip_addr tmp; |
203 | struct tip_addr *addr; | |
db0e1937 MK |
204 | |
205 | tmp.addr = *tip; | |
206 | ||
207 | addr = hash_lookup(bgp->tip_hash, &tmp); | |
208 | /* may have been deleted earlier by bgp_interface_down() */ | |
209 | if (addr == NULL) | |
210 | return; | |
211 | ||
212 | addr->refcnt--; | |
213 | ||
214 | if (addr->refcnt == 0) { | |
215 | hash_release(bgp->tip_hash, addr); | |
216 | XFREE(MTYPE_TIP_ADDR, addr); | |
217 | } | |
218 | } | |
10f9bf3f | 219 | |
af97a18b DS |
220 | /* BGP own address structure */ |
221 | struct bgp_addr { | |
2ec802d1 | 222 | struct prefix p; |
f4c2fb93 | 223 | struct list *ifp_name_list; |
af97a18b DS |
224 | }; |
225 | ||
e3b78da8 | 226 | static void show_address_entry(struct hash_bucket *bucket, void *args) |
af97a18b DS |
227 | { |
228 | struct vty *vty = (struct vty *)args; | |
e3b78da8 | 229 | struct bgp_addr *addr = (struct bgp_addr *)bucket->data; |
f4c2fb93 DS |
230 | char *name; |
231 | struct listnode *node; | |
949b0f24 | 232 | char str[INET6_ADDRSTRLEN] = {0}; |
233 | ||
e61f7c0a | 234 | vty_out(vty, "addr: %s, count: %d : ", |
2ec802d1 | 235 | inet_ntop(addr->p.family, &(addr->p.u.prefix), |
e61f7c0a DS |
236 | str, INET6_ADDRSTRLEN), |
237 | addr->ifp_name_list->count); | |
f4c2fb93 DS |
238 | |
239 | for (ALL_LIST_ELEMENTS_RO(addr->ifp_name_list, node, name)) { | |
240 | vty_out(vty, " %s,", name); | |
241 | } | |
242 | ||
243 | vty_out(vty, "\n"); | |
af97a18b DS |
244 | } |
245 | ||
246 | void bgp_nexthop_show_address_hash(struct vty *vty, struct bgp *bgp) | |
247 | { | |
248 | hash_iterate(bgp->address_hash, | |
e3b78da8 | 249 | (void (*)(struct hash_bucket *, void *))show_address_entry, |
af97a18b DS |
250 | vty); |
251 | } | |
252 | ||
f4c2fb93 DS |
253 | static void bgp_address_hash_string_del(void *val) |
254 | { | |
255 | char *data = val; | |
256 | ||
330cec3d | 257 | XFREE(MTYPE_MARTIAN_STRING, data); |
f4c2fb93 DS |
258 | } |
259 | ||
d62a17ae | 260 | static void *bgp_address_hash_alloc(void *p) |
10f9bf3f | 261 | { |
949b0f24 | 262 | struct bgp_addr *copy_addr = p; |
263 | struct bgp_addr *addr = NULL; | |
10f9bf3f | 264 | |
d62a17ae | 265 | addr = XMALLOC(MTYPE_BGP_ADDR, sizeof(struct bgp_addr)); |
2ec802d1 | 266 | prefix_copy(&addr->p, ©_addr->p); |
10f9bf3f | 267 | |
f4c2fb93 DS |
268 | addr->ifp_name_list = list_new(); |
269 | addr->ifp_name_list->del = bgp_address_hash_string_del; | |
270 | ||
d62a17ae | 271 | return addr; |
10f9bf3f JBD |
272 | } |
273 | ||
f4c2fb93 | 274 | static void bgp_address_hash_free(void *data) |
37d361e7 | 275 | { |
f4c2fb93 DS |
276 | struct bgp_addr *addr = data; |
277 | ||
6a154c88 | 278 | list_delete(&addr->ifp_name_list); |
d62a17ae | 279 | XFREE(MTYPE_BGP_ADDR, addr); |
37d361e7 RW |
280 | } |
281 | ||
d8b87afe | 282 | static unsigned int bgp_address_hash_key_make(const void *p) |
10f9bf3f | 283 | { |
d62a17ae | 284 | const struct bgp_addr *addr = p; |
10f9bf3f | 285 | |
2ec802d1 | 286 | return prefix_hash_key(&addr->p); |
10f9bf3f JBD |
287 | } |
288 | ||
74df8d6d | 289 | static bool bgp_address_hash_cmp(const void *p1, const void *p2) |
10f9bf3f | 290 | { |
d62a17ae | 291 | const struct bgp_addr *addr1 = p1; |
292 | const struct bgp_addr *addr2 = p2; | |
10f9bf3f | 293 | |
2ec802d1 | 294 | return prefix_same(&addr1->p, &addr2->p); |
10f9bf3f JBD |
295 | } |
296 | ||
d62a17ae | 297 | void bgp_address_init(struct bgp *bgp) |
10f9bf3f | 298 | { |
996c9314 LB |
299 | bgp->address_hash = |
300 | hash_create(bgp_address_hash_key_make, bgp_address_hash_cmp, | |
949b0f24 | 301 | "BGP Connected Address Hash"); |
10f9bf3f JBD |
302 | } |
303 | ||
d62a17ae | 304 | void bgp_address_destroy(struct bgp *bgp) |
bb86c601 | 305 | { |
d62a17ae | 306 | if (bgp->address_hash == NULL) |
307 | return; | |
308 | hash_clean(bgp->address_hash, bgp_address_hash_free); | |
309 | hash_free(bgp->address_hash); | |
310 | bgp->address_hash = NULL; | |
bb86c601 LB |
311 | } |
312 | ||
f4c2fb93 DS |
313 | static void bgp_address_add(struct bgp *bgp, struct connected *ifc, |
314 | struct prefix *p) | |
10f9bf3f | 315 | { |
d62a17ae | 316 | struct bgp_addr tmp; |
317 | struct bgp_addr *addr; | |
f4c2fb93 DS |
318 | struct listnode *node; |
319 | char *name; | |
10f9bf3f | 320 | |
2ec802d1 | 321 | tmp.p = *p; |
949b0f24 | 322 | |
2ec802d1 DS |
323 | if (tmp.p.family == AF_INET) |
324 | tmp.p.prefixlen = IPV4_MAX_BITLEN; | |
325 | else if (tmp.p.family == AF_INET6) | |
326 | tmp.p.prefixlen = IPV6_MAX_BITLEN; | |
10f9bf3f | 327 | |
d62a17ae | 328 | addr = hash_get(bgp->address_hash, &tmp, bgp_address_hash_alloc); |
5ce10e92 | 329 | |
f4c2fb93 DS |
330 | for (ALL_LIST_ELEMENTS_RO(addr->ifp_name_list, node, name)) { |
331 | if (strcmp(ifc->ifp->name, name) == 0) | |
332 | break; | |
333 | } | |
334 | if (!node) { | |
330cec3d | 335 | name = XSTRDUP(MTYPE_MARTIAN_STRING, ifc->ifp->name); |
f4c2fb93 DS |
336 | listnode_add(addr->ifp_name_list, name); |
337 | } | |
10f9bf3f JBD |
338 | } |
339 | ||
f4c2fb93 DS |
340 | static void bgp_address_del(struct bgp *bgp, struct connected *ifc, |
341 | struct prefix *p) | |
10f9bf3f | 342 | { |
d62a17ae | 343 | struct bgp_addr tmp; |
344 | struct bgp_addr *addr; | |
f4c2fb93 DS |
345 | struct listnode *node; |
346 | char *name; | |
10f9bf3f | 347 | |
2ec802d1 | 348 | tmp.p = *p; |
949b0f24 | 349 | |
2ec802d1 DS |
350 | if (tmp.p.family == AF_INET) |
351 | tmp.p.prefixlen = IPV4_MAX_BITLEN; | |
352 | else if (tmp.p.family == AF_INET6) | |
353 | tmp.p.prefixlen = IPV6_MAX_BITLEN; | |
10f9bf3f | 354 | |
d62a17ae | 355 | addr = hash_lookup(bgp->address_hash, &tmp); |
356 | /* may have been deleted earlier by bgp_interface_down() */ | |
357 | if (addr == NULL) | |
358 | return; | |
9e47abd8 | 359 | |
f4c2fb93 DS |
360 | for (ALL_LIST_ELEMENTS_RO(addr->ifp_name_list, node, name)) { |
361 | if (strcmp(ifc->ifp->name, name) == 0) | |
362 | break; | |
363 | } | |
10f9bf3f | 364 | |
b9129915 | 365 | if (node) { |
f4c2fb93 | 366 | list_delete_node(addr->ifp_name_list, node); |
b9129915 DS |
367 | XFREE(MTYPE_MARTIAN_STRING, name); |
368 | } | |
f4c2fb93 DS |
369 | |
370 | if (addr->ifp_name_list->count == 0) { | |
d62a17ae | 371 | hash_release(bgp->address_hash, addr); |
6a154c88 | 372 | list_delete(&addr->ifp_name_list); |
d62a17ae | 373 | XFREE(MTYPE_BGP_ADDR, addr); |
374 | } | |
10f9bf3f JBD |
375 | } |
376 | ||
6b0655a2 | 377 | |
d62a17ae | 378 | struct bgp_connected_ref { |
379 | unsigned int refcnt; | |
718e3744 | 380 | }; |
381 | ||
d62a17ae | 382 | void bgp_connected_add(struct bgp *bgp, struct connected *ifc) |
718e3744 | 383 | { |
d62a17ae | 384 | struct prefix p; |
385 | struct prefix *addr; | |
9bcb3eef | 386 | struct bgp_dest *dest; |
d62a17ae | 387 | struct bgp_connected_ref *bc; |
388 | struct listnode *node, *nnode; | |
389 | struct peer *peer; | |
390 | ||
391 | addr = ifc->address; | |
392 | ||
393 | p = *(CONNECTED_PREFIX(ifc)); | |
394 | if (addr->family == AF_INET) { | |
395 | apply_mask_ipv4((struct prefix_ipv4 *)&p); | |
396 | ||
397 | if (prefix_ipv4_any((struct prefix_ipv4 *)&p)) | |
398 | return; | |
399 | ||
f4c2fb93 | 400 | bgp_address_add(bgp, ifc, addr); |
d62a17ae | 401 | |
9bcb3eef DS |
402 | dest = bgp_node_get(bgp->connected_table[AFI_IP], |
403 | (struct prefix *)&p); | |
404 | bc = bgp_dest_get_bgp_connected_ref_info(dest); | |
3d9dbdbe | 405 | if (bc) |
d62a17ae | 406 | bc->refcnt++; |
3d9dbdbe | 407 | else { |
d62a17ae | 408 | bc = XCALLOC(MTYPE_BGP_CONN, |
409 | sizeof(struct bgp_connected_ref)); | |
410 | bc->refcnt = 1; | |
9bcb3eef | 411 | bgp_dest_set_bgp_connected_ref_info(dest, bc); |
d62a17ae | 412 | } |
8ffedcea | 413 | |
d62a17ae | 414 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { |
415 | if (peer->conf_if | |
416 | && (strcmp(peer->conf_if, ifc->ifp->name) == 0) | |
feb17238 | 417 | && !peer_established(peer) |
d62a17ae | 418 | && !CHECK_FLAG(peer->flags, |
419 | PEER_FLAG_IFPEER_V6ONLY)) { | |
420 | if (peer_active(peer)) | |
421 | BGP_EVENT_ADD(peer, BGP_Stop); | |
422 | BGP_EVENT_ADD(peer, BGP_Start); | |
423 | } | |
424 | } | |
425 | } else if (addr->family == AF_INET6) { | |
426 | apply_mask_ipv6((struct prefix_ipv6 *)&p); | |
427 | ||
428 | if (IN6_IS_ADDR_UNSPECIFIED(&p.u.prefix6)) | |
429 | return; | |
430 | ||
431 | if (IN6_IS_ADDR_LINKLOCAL(&p.u.prefix6)) | |
432 | return; | |
433 | ||
949b0f24 | 434 | bgp_address_add(bgp, ifc, addr); |
435 | ||
9bcb3eef DS |
436 | dest = bgp_node_get(bgp->connected_table[AFI_IP6], |
437 | (struct prefix *)&p); | |
3d9dbdbe | 438 | |
9bcb3eef | 439 | bc = bgp_dest_get_bgp_connected_ref_info(dest); |
3d9dbdbe | 440 | if (bc) |
d62a17ae | 441 | bc->refcnt++; |
3d9dbdbe | 442 | else { |
d62a17ae | 443 | bc = XCALLOC(MTYPE_BGP_CONN, |
444 | sizeof(struct bgp_connected_ref)); | |
445 | bc->refcnt = 1; | |
9bcb3eef | 446 | bgp_dest_set_bgp_connected_ref_info(dest, bc); |
d62a17ae | 447 | } |
718e3744 | 448 | } |
718e3744 | 449 | } |
450 | ||
d62a17ae | 451 | void bgp_connected_delete(struct bgp *bgp, struct connected *ifc) |
718e3744 | 452 | { |
d62a17ae | 453 | struct prefix p; |
454 | struct prefix *addr; | |
9bcb3eef | 455 | struct bgp_dest *dest = NULL; |
d62a17ae | 456 | struct bgp_connected_ref *bc; |
718e3744 | 457 | |
d62a17ae | 458 | addr = ifc->address; |
718e3744 | 459 | |
d62a17ae | 460 | p = *(CONNECTED_PREFIX(ifc)); |
f6bdc080 | 461 | apply_mask(&p); |
d62a17ae | 462 | if (addr->family == AF_INET) { |
d62a17ae | 463 | if (prefix_ipv4_any((struct prefix_ipv4 *)&p)) |
464 | return; | |
718e3744 | 465 | |
f4c2fb93 | 466 | bgp_address_del(bgp, ifc, addr); |
10f9bf3f | 467 | |
9bcb3eef | 468 | dest = bgp_node_lookup(bgp->connected_table[AFI_IP], &p); |
d62a17ae | 469 | } else if (addr->family == AF_INET6) { |
d62a17ae | 470 | if (IN6_IS_ADDR_UNSPECIFIED(&p.u.prefix6)) |
471 | return; | |
472 | ||
473 | if (IN6_IS_ADDR_LINKLOCAL(&p.u.prefix6)) | |
474 | return; | |
475 | ||
949b0f24 | 476 | bgp_address_del(bgp, ifc, addr); |
477 | ||
9bcb3eef | 478 | dest = bgp_node_lookup(bgp->connected_table[AFI_IP6], &p); |
f6bdc080 | 479 | } |
d62a17ae | 480 | |
9bcb3eef | 481 | if (!dest) |
f6bdc080 DS |
482 | return; |
483 | ||
9bcb3eef | 484 | bc = bgp_dest_get_bgp_connected_ref_info(dest); |
f6bdc080 DS |
485 | bc->refcnt--; |
486 | if (bc->refcnt == 0) { | |
487 | XFREE(MTYPE_BGP_CONN, bc); | |
9bcb3eef | 488 | bgp_dest_set_bgp_connected_ref_info(dest, NULL); |
718e3744 | 489 | } |
9bcb3eef DS |
490 | bgp_dest_unlock_node(dest); |
491 | bgp_dest_unlock_node(dest); | |
718e3744 | 492 | } |
493 | ||
3292693b DS |
494 | static void bgp_connected_cleanup(struct route_table *table, |
495 | struct route_node *rn) | |
496 | { | |
497 | struct bgp_connected_ref *bc; | |
9bcb3eef | 498 | struct bgp_dest *bn = bgp_dest_from_rnode(rn); |
3292693b | 499 | |
9bcb3eef | 500 | bc = bgp_dest_get_bgp_connected_ref_info(bn); |
3292693b DS |
501 | if (!bc) |
502 | return; | |
503 | ||
504 | bc->refcnt--; | |
505 | if (bc->refcnt == 0) { | |
506 | XFREE(MTYPE_BGP_CONN, bc); | |
9bcb3eef | 507 | bgp_dest_set_bgp_connected_ref_info(bn, NULL); |
3292693b DS |
508 | } |
509 | } | |
510 | ||
3dc339cd | 511 | bool bgp_nexthop_self(struct bgp *bgp, afi_t afi, uint8_t type, |
9bcb3eef DS |
512 | uint8_t sub_type, struct attr *attr, |
513 | struct bgp_dest *dest) | |
718e3744 | 514 | { |
af34d2da | 515 | uint8_t new_afi = afi == AFI_IP ? AF_INET : AF_INET6; |
8c5c49ac | 516 | struct bgp_addr tmp_addr = {{0}}, *addr = NULL; |
949b0f24 | 517 | struct tip_addr tmp_tip, *tip = NULL; |
9bcb3eef | 518 | const struct prefix *p = bgp_dest_get_prefix(dest); |
c4fb2504 DS |
519 | bool is_bgp_static_route = |
520 | ((type == ZEBRA_ROUTE_BGP) && (sub_type == BGP_ROUTE_STATIC)) | |
949b0f24 | 521 | ? true |
522 | : false; | |
523 | ||
524 | if (!is_bgp_static_route) | |
af34d2da | 525 | new_afi = BGP_ATTR_NEXTHOP_AFI_IP6(attr) ? AF_INET6 : AF_INET; |
949b0f24 | 526 | |
e26c3055 | 527 | tmp_addr.p.family = new_afi; |
949b0f24 | 528 | switch (new_afi) { |
af34d2da | 529 | case AF_INET: |
949b0f24 | 530 | if (is_bgp_static_route) { |
b54892e0 DS |
531 | tmp_addr.p.u.prefix4 = p->u.prefix4; |
532 | tmp_addr.p.prefixlen = p->prefixlen; | |
949b0f24 | 533 | } else { |
534 | /* Here we need to find out which nexthop to be used*/ | |
c4fb2504 | 535 | if (attr->flag & ATTR_FLAG_BIT(BGP_ATTR_NEXT_HOP)) { |
e26c3055 DS |
536 | tmp_addr.p.u.prefix4 = attr->nexthop; |
537 | tmp_addr.p.prefixlen = IPV4_MAX_BITLEN; | |
c4fb2504 DS |
538 | } else if ((attr->mp_nexthop_len) |
539 | && ((attr->mp_nexthop_len | |
540 | == BGP_ATTR_NHLEN_IPV4) | |
541 | || (attr->mp_nexthop_len | |
542 | == BGP_ATTR_NHLEN_VPNV4))) { | |
e26c3055 | 543 | tmp_addr.p.u.prefix4 = |
949b0f24 | 544 | attr->mp_nexthop_global_in; |
e26c3055 | 545 | tmp_addr.p.prefixlen = IPV4_MAX_BITLEN; |
949b0f24 | 546 | } else |
3dc339cd | 547 | return false; |
949b0f24 | 548 | } |
549 | break; | |
af34d2da | 550 | case AF_INET6: |
949b0f24 | 551 | if (is_bgp_static_route) { |
b54892e0 DS |
552 | tmp_addr.p.u.prefix6 = p->u.prefix6; |
553 | tmp_addr.p.prefixlen = p->prefixlen; | |
949b0f24 | 554 | } else { |
e26c3055 DS |
555 | tmp_addr.p.u.prefix6 = attr->mp_nexthop_global; |
556 | tmp_addr.p.prefixlen = IPV6_MAX_BITLEN; | |
949b0f24 | 557 | } |
558 | break; | |
559 | default: | |
560 | break; | |
561 | } | |
10f9bf3f | 562 | |
949b0f24 | 563 | addr = hash_lookup(bgp->address_hash, &tmp_addr); |
d62a17ae | 564 | if (addr) |
3dc339cd | 565 | return true; |
718e3744 | 566 | |
3584c85e | 567 | if (new_afi == AF_INET && hashcount(bgp->tip_hash)) { |
949b0f24 | 568 | memset(&tmp_tip, 0, sizeof(struct tip_addr)); |
569 | tmp_tip.addr = attr->nexthop; | |
570 | ||
571 | if (attr->flag & ATTR_FLAG_BIT(BGP_ATTR_NEXT_HOP)) { | |
572 | tmp_tip.addr = attr->nexthop; | |
573 | } else if ((attr->mp_nexthop_len) && | |
2ec802d1 DS |
574 | ((attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV4) |
575 | || (attr->mp_nexthop_len == BGP_ATTR_NHLEN_VPNV4))) { | |
949b0f24 | 576 | tmp_tip.addr = attr->mp_nexthop_global_in; |
577 | } | |
578 | ||
579 | tip = hash_lookup(bgp->tip_hash, &tmp_tip); | |
580 | if (tip) | |
3dc339cd | 581 | return true; |
949b0f24 | 582 | } |
db0e1937 | 583 | |
3dc339cd | 584 | return false; |
718e3744 | 585 | } |
6b0655a2 | 586 | |
3dc339cd | 587 | bool bgp_multiaccess_check_v4(struct in_addr nexthop, struct peer *peer) |
718e3744 | 588 | { |
9bcb3eef DS |
589 | struct bgp_dest *dest1; |
590 | struct bgp_dest *dest2; | |
d62a17ae | 591 | struct prefix p; |
592 | int ret; | |
593 | ||
594 | p.family = AF_INET; | |
595 | p.prefixlen = IPV4_MAX_BITLEN; | |
596 | p.u.prefix4 = nexthop; | |
597 | ||
9bcb3eef DS |
598 | dest1 = bgp_node_match(peer->bgp->connected_table[AFI_IP], &p); |
599 | if (!dest1) | |
3dc339cd | 600 | return false; |
d62a17ae | 601 | |
602 | p.family = AF_INET; | |
603 | p.prefixlen = IPV4_MAX_BITLEN; | |
604 | p.u.prefix4 = peer->su.sin.sin_addr; | |
605 | ||
9bcb3eef DS |
606 | dest2 = bgp_node_match(peer->bgp->connected_table[AFI_IP], &p); |
607 | if (!dest2) { | |
608 | bgp_dest_unlock_node(dest1); | |
3dc339cd | 609 | return false; |
d62a17ae | 610 | } |
718e3744 | 611 | |
9bcb3eef | 612 | ret = (dest1 == dest2); |
718e3744 | 613 | |
9bcb3eef DS |
614 | bgp_dest_unlock_node(dest1); |
615 | bgp_dest_unlock_node(dest2); | |
718e3744 | 616 | |
3dc339cd | 617 | return ret; |
718e3744 | 618 | } |
619 | ||
3dc339cd | 620 | bool bgp_multiaccess_check_v6(struct in6_addr nexthop, struct peer *peer) |
737af885 | 621 | { |
9bcb3eef DS |
622 | struct bgp_dest *dest1; |
623 | struct bgp_dest *dest2; | |
737af885 BS |
624 | struct prefix p; |
625 | int ret; | |
626 | ||
627 | p.family = AF_INET6; | |
628 | p.prefixlen = IPV6_MAX_BITLEN; | |
629 | p.u.prefix6 = nexthop; | |
630 | ||
9bcb3eef DS |
631 | dest1 = bgp_node_match(peer->bgp->connected_table[AFI_IP6], &p); |
632 | if (!dest1) | |
3dc339cd | 633 | return false; |
737af885 BS |
634 | |
635 | p.family = AF_INET6; | |
636 | p.prefixlen = IPV6_MAX_BITLEN; | |
637 | p.u.prefix6 = peer->su.sin6.sin6_addr; | |
638 | ||
9bcb3eef DS |
639 | dest2 = bgp_node_match(peer->bgp->connected_table[AFI_IP6], &p); |
640 | if (!dest2) { | |
641 | bgp_dest_unlock_node(dest1); | |
3dc339cd | 642 | return false; |
737af885 BS |
643 | } |
644 | ||
9bcb3eef | 645 | ret = (dest1 == dest2); |
737af885 | 646 | |
9bcb3eef DS |
647 | bgp_dest_unlock_node(dest1); |
648 | bgp_dest_unlock_node(dest2); | |
737af885 BS |
649 | |
650 | return ret; | |
651 | } | |
652 | ||
3dc339cd DA |
653 | bool bgp_subgrp_multiaccess_check_v6(struct in6_addr nexthop, |
654 | struct update_subgroup *subgrp, | |
655 | struct peer *exclude) | |
737af885 | 656 | { |
9bcb3eef | 657 | struct bgp_dest *dest1 = NULL, *dest2 = NULL; |
737af885 BS |
658 | struct peer_af *paf = NULL; |
659 | struct prefix p = {0}, np = {0}; | |
660 | struct bgp *bgp = NULL; | |
661 | ||
662 | np.family = AF_INET6; | |
663 | np.prefixlen = IPV6_MAX_BITLEN; | |
664 | np.u.prefix6 = nexthop; | |
665 | ||
666 | p.family = AF_INET; | |
667 | p.prefixlen = IPV6_MAX_BITLEN; | |
668 | ||
669 | bgp = SUBGRP_INST(subgrp); | |
9bcb3eef DS |
670 | dest1 = bgp_node_match(bgp->connected_table[AFI_IP6], &np); |
671 | if (!dest1) | |
3dc339cd | 672 | return false; |
737af885 BS |
673 | |
674 | SUBGRP_FOREACH_PEER (subgrp, paf) { | |
a3b72539 | 675 | /* Skip peer we're told to exclude - e.g., source of route. */ |
676 | if (paf->peer == exclude) | |
677 | continue; | |
737af885 BS |
678 | |
679 | p.u.prefix6 = paf->peer->su.sin6.sin6_addr; | |
9bcb3eef DS |
680 | dest2 = bgp_node_match(bgp->connected_table[AFI_IP6], &p); |
681 | if (dest1 == dest2) { | |
682 | bgp_dest_unlock_node(dest1); | |
683 | bgp_dest_unlock_node(dest2); | |
3dc339cd | 684 | return true; |
737af885 BS |
685 | } |
686 | ||
9bcb3eef DS |
687 | if (dest2) |
688 | bgp_dest_unlock_node(dest2); | |
737af885 BS |
689 | } |
690 | ||
9bcb3eef | 691 | bgp_dest_unlock_node(dest1); |
3dc339cd | 692 | return false; |
737af885 BS |
693 | } |
694 | ||
3dc339cd DA |
695 | bool bgp_subgrp_multiaccess_check_v4(struct in_addr nexthop, |
696 | struct update_subgroup *subgrp, | |
697 | struct peer *exclude) | |
65d4e0c6 | 698 | { |
9bcb3eef | 699 | struct bgp_dest *dest1, *dest2; |
65d4e0c6 DS |
700 | struct peer_af *paf; |
701 | struct prefix p, np; | |
a2b6e694 | 702 | struct bgp *bgp; |
65d4e0c6 DS |
703 | |
704 | np.family = AF_INET; | |
705 | np.prefixlen = IPV4_MAX_BITLEN; | |
706 | np.u.prefix4 = nexthop; | |
707 | ||
708 | p.family = AF_INET; | |
709 | p.prefixlen = IPV4_MAX_BITLEN; | |
710 | ||
65d4e0c6 | 711 | bgp = SUBGRP_INST(subgrp); |
9bcb3eef DS |
712 | dest1 = bgp_node_match(bgp->connected_table[AFI_IP], &np); |
713 | if (!dest1) | |
3dc339cd | 714 | return false; |
65d4e0c6 | 715 | |
996c9314 | 716 | SUBGRP_FOREACH_PEER (subgrp, paf) { |
a3b72539 | 717 | /* Skip peer we're told to exclude - e.g., source of route. */ |
718 | if (paf->peer == exclude) | |
719 | continue; | |
720 | ||
65d4e0c6 DS |
721 | p.u.prefix4 = paf->peer->su.sin.sin_addr; |
722 | ||
9bcb3eef DS |
723 | dest2 = bgp_node_match(bgp->connected_table[AFI_IP], &p); |
724 | if (dest1 == dest2) { | |
725 | bgp_dest_unlock_node(dest1); | |
726 | bgp_dest_unlock_node(dest2); | |
3dc339cd | 727 | return true; |
65d4e0c6 DS |
728 | } |
729 | ||
9bcb3eef DS |
730 | if (dest2) |
731 | bgp_dest_unlock_node(dest2); | |
65d4e0c6 DS |
732 | } |
733 | ||
9bcb3eef | 734 | bgp_dest_unlock_node(dest1); |
3dc339cd | 735 | return false; |
65d4e0c6 DS |
736 | } |
737 | ||
5d76a53d | 738 | static void bgp_show_nexthop_paths(struct vty *vty, struct bgp *bgp, |
739 | struct bgp_nexthop_cache *bnc) | |
740 | { | |
9bcb3eef | 741 | struct bgp_dest *dest; |
5d76a53d | 742 | struct bgp_path_info *path; |
743 | int afi; | |
744 | safi_t safi; | |
745 | struct bgp_table *table; | |
746 | struct bgp *bgp_path; | |
747 | char buf1[BUFSIZ]; | |
748 | ||
749 | vty_out(vty, " Paths:\n"); | |
750 | LIST_FOREACH (path, &(bnc->paths), nh_thread) { | |
9bcb3eef DS |
751 | dest = path->net; |
752 | assert(dest && bgp_dest_table(dest)); | |
753 | afi = family2afi(bgp_dest_get_prefix(dest)->family); | |
754 | table = bgp_dest_table(dest); | |
5d76a53d | 755 | safi = table->safi; |
756 | bgp_path = table->bgp; | |
757 | ||
9bcb3eef DS |
758 | if (dest->pdest) { |
759 | prefix_rd2str((struct prefix_rd *)bgp_dest_get_prefix(dest->pdest), | |
5d76a53d | 760 | buf1, sizeof(buf1)); |
56ca3b5b | 761 | vty_out(vty, " %d/%d %pBD RD %s %s flags 0x%x\n", |
9bcb3eef | 762 | afi, safi, dest, buf1, bgp_path->name_pretty, path->flags); |
5d76a53d | 763 | } else |
56ca3b5b | 764 | vty_out(vty, " %d/%d %pBD %s flags 0x%x\n", |
9bcb3eef | 765 | afi, safi, dest, bgp_path->name_pretty, path->flags); |
5d76a53d | 766 | } |
767 | } | |
768 | ||
996c9314 | 769 | static void bgp_show_nexthops_detail(struct vty *vty, struct bgp *bgp, |
e22ac3ee DS |
770 | struct bgp_nexthop_cache *bnc) |
771 | { | |
772 | char buf[PREFIX2STR_BUFFER]; | |
773 | struct nexthop *nexthop; | |
774 | ||
5d76a53d | 775 | for (nexthop = bnc->nexthop; nexthop; nexthop = nexthop->next) { |
e22ac3ee DS |
776 | switch (nexthop->type) { |
777 | case NEXTHOP_TYPE_IPV6: | |
778 | vty_out(vty, " gate %s\n", | |
996c9314 LB |
779 | inet_ntop(AF_INET6, &nexthop->gate.ipv6, buf, |
780 | sizeof(buf))); | |
e22ac3ee DS |
781 | break; |
782 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
783 | vty_out(vty, " gate %s, if %s\n", | |
996c9314 LB |
784 | inet_ntop(AF_INET6, &nexthop->gate.ipv6, buf, |
785 | sizeof(buf)), | |
8761cd6d DS |
786 | ifindex2ifname(bnc->ifindex ? bnc->ifindex |
787 | : nexthop->ifindex, | |
788 | bgp->vrf_id)); | |
e22ac3ee DS |
789 | break; |
790 | case NEXTHOP_TYPE_IPV4: | |
791 | vty_out(vty, " gate %s\n", | |
996c9314 LB |
792 | inet_ntop(AF_INET, &nexthop->gate.ipv4, buf, |
793 | sizeof(buf))); | |
e22ac3ee DS |
794 | break; |
795 | case NEXTHOP_TYPE_IFINDEX: | |
796 | vty_out(vty, " if %s\n", | |
8761cd6d DS |
797 | ifindex2ifname(bnc->ifindex ? bnc->ifindex |
798 | : nexthop->ifindex, | |
799 | bgp->vrf_id)); | |
e22ac3ee DS |
800 | break; |
801 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
802 | vty_out(vty, " gate %s, if %s\n", | |
996c9314 LB |
803 | inet_ntop(AF_INET, &nexthop->gate.ipv4, buf, |
804 | sizeof(buf)), | |
8761cd6d DS |
805 | ifindex2ifname(bnc->ifindex ? bnc->ifindex |
806 | : nexthop->ifindex, | |
807 | bgp->vrf_id)); | |
e22ac3ee DS |
808 | break; |
809 | case NEXTHOP_TYPE_BLACKHOLE: | |
810 | vty_out(vty, " blackhole\n"); | |
811 | break; | |
812 | default: | |
996c9314 | 813 | vty_out(vty, " invalid nexthop type %u\n", |
e22ac3ee DS |
814 | nexthop->type); |
815 | } | |
5d76a53d | 816 | } |
e22ac3ee DS |
817 | } |
818 | ||
5d76a53d | 819 | static void bgp_show_nexthop(struct vty *vty, struct bgp *bgp, |
5d76a53d | 820 | struct bgp_nexthop_cache *bnc, |
821 | bool specific) | |
fb018d25 | 822 | { |
d62a17ae | 823 | char buf[PREFIX2STR_BUFFER]; |
d62a17ae | 824 | time_t tbuf; |
5d76a53d | 825 | struct peer *peer; |
5d76a53d | 826 | |
827 | peer = (struct peer *)bnc->nht_info; | |
828 | ||
545aeef1 RW |
829 | if (bnc->srte_color) |
830 | vty_out(vty, " SR-TE color %u -", bnc->srte_color); | |
5d76a53d | 831 | if (CHECK_FLAG(bnc->flags, BGP_NEXTHOP_VALID)) { |
832 | vty_out(vty, " %s valid [IGP metric %d], #paths %d", | |
f663c581 RW |
833 | inet_ntop(bnc->prefix.family, &bnc->prefix.u.prefix, |
834 | buf, sizeof(buf)), | |
5d76a53d | 835 | bnc->metric, bnc->path_count); |
836 | if (peer) | |
837 | vty_out(vty, ", peer %s", peer->host); | |
021b6596 AD |
838 | if (bnc->is_evpn_gwip_nexthop) |
839 | vty_out(vty, " EVPN Gateway IP"); | |
840 | vty_out(vty, "\n"); | |
841 | bgp_show_nexthops_detail(vty, bgp, bnc); | |
842 | } else if (CHECK_FLAG(bnc->flags, BGP_NEXTHOP_EVPN_INCOMPLETE)) { | |
843 | vty_out(vty, | |
844 | " %s overlay index unresolved [IGP metric %d], #paths %d", | |
845 | inet_ntop(bnc->prefix.family, &bnc->prefix.u.prefix, | |
846 | buf, sizeof(buf)), | |
847 | bnc->metric, bnc->path_count); | |
848 | if (bnc->is_evpn_gwip_nexthop) | |
849 | vty_out(vty, " EVPN Gateway IP"); | |
5d76a53d | 850 | vty_out(vty, "\n"); |
851 | bgp_show_nexthops_detail(vty, bgp, bnc); | |
852 | } else { | |
853 | vty_out(vty, " %s invalid, #paths %d", | |
f663c581 RW |
854 | inet_ntop(bnc->prefix.family, &bnc->prefix.u.prefix, |
855 | buf, sizeof(buf)), | |
5d76a53d | 856 | bnc->path_count); |
857 | if (peer) | |
858 | vty_out(vty, ", peer %s", peer->host); | |
021b6596 AD |
859 | if (bnc->is_evpn_gwip_nexthop) |
860 | vty_out(vty, " EVPN Gateway IP"); | |
5d76a53d | 861 | vty_out(vty, "\n"); |
862 | if (CHECK_FLAG(bnc->flags, BGP_NEXTHOP_CONNECTED)) | |
863 | vty_out(vty, " Must be Connected\n"); | |
864 | if (!CHECK_FLAG(bnc->flags, BGP_NEXTHOP_REGISTERED)) | |
865 | vty_out(vty, " Is not Registered\n"); | |
866 | } | |
867 | tbuf = time(NULL) - (bgp_clock() - bnc->last_update); | |
868 | vty_out(vty, " Last update: %s", ctime(&tbuf)); | |
869 | vty_out(vty, "\n"); | |
870 | ||
871 | /* show paths dependent on nexthop, if needed. */ | |
872 | if (specific) | |
873 | bgp_show_nexthop_paths(vty, bgp, bnc); | |
874 | } | |
875 | ||
876 | static void bgp_show_nexthops(struct vty *vty, struct bgp *bgp, | |
877 | bool import_table) | |
878 | { | |
5d76a53d | 879 | struct bgp_nexthop_cache *bnc; |
d62a17ae | 880 | afi_t afi; |
f663c581 | 881 | struct bgp_nexthop_cache_head(*tree)[AFI_MAX]; |
d62a17ae | 882 | |
05e47722 PG |
883 | if (import_table) |
884 | vty_out(vty, "Current BGP import check cache:\n"); | |
885 | else | |
886 | vty_out(vty, "Current BGP nexthop cache:\n"); | |
887 | if (import_table) | |
f663c581 | 888 | tree = &bgp->import_check_table; |
05e47722 | 889 | else |
f663c581 | 890 | tree = &bgp->nexthop_cache_table; |
d62a17ae | 891 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
f663c581 RW |
892 | frr_each (bgp_nexthop_cache, &(*tree)[afi], bnc) |
893 | bgp_show_nexthop(vty, bgp, bnc, false); | |
fb018d25 | 894 | } |
f186de26 | 895 | } |
896 | ||
d62a17ae | 897 | static int show_ip_bgp_nexthop_table(struct vty *vty, const char *name, |
5d76a53d | 898 | const char *nhopip_str, |
899 | bool import_table) | |
f186de26 | 900 | { |
d62a17ae | 901 | struct bgp *bgp; |
902 | ||
903 | if (name) | |
904 | bgp = bgp_lookup_by_name(name); | |
905 | else | |
906 | bgp = bgp_get_default(); | |
907 | if (!bgp) { | |
908 | vty_out(vty, "%% No such BGP instance exist\n"); | |
909 | return CMD_WARNING; | |
910 | } | |
f186de26 | 911 | |
5d76a53d | 912 | if (nhopip_str) { |
913 | struct prefix nhop; | |
f663c581 | 914 | struct bgp_nexthop_cache_head (*tree)[AFI_MAX]; |
5d76a53d | 915 | struct bgp_nexthop_cache *bnc; |
916 | ||
917 | if (!str2prefix(nhopip_str, &nhop)) { | |
918 | vty_out(vty, "nexthop address is malformed\n"); | |
919 | return CMD_WARNING; | |
920 | } | |
f663c581 RW |
921 | tree = import_table ? &bgp->import_check_table |
922 | : &bgp->nexthop_cache_table; | |
923 | bnc = bnc_find(tree[family2afi(nhop.family)], &nhop, 0); | |
5d76a53d | 924 | if (!bnc) { |
925 | vty_out(vty, "specified nexthop does not have entry\n"); | |
926 | return CMD_SUCCESS; | |
927 | } | |
f663c581 | 928 | bgp_show_nexthop(vty, bgp, bnc, true); |
5d76a53d | 929 | } else |
930 | bgp_show_nexthops(vty, bgp, import_table); | |
f186de26 | 931 | |
d62a17ae | 932 | return CMD_SUCCESS; |
fb018d25 DS |
933 | } |
934 | ||
d62a17ae | 935 | static void bgp_show_all_instances_nexthops_vty(struct vty *vty) |
f186de26 | 936 | { |
d62a17ae | 937 | struct listnode *node, *nnode; |
938 | struct bgp *bgp; | |
939 | ||
940 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) { | |
941 | vty_out(vty, "\nInstance %s:\n", | |
942 | (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
5742e42b | 943 | ? VRF_DEFAULT_NAME |
d62a17ae | 944 | : bgp->name); |
5d76a53d | 945 | bgp_show_nexthops(vty, bgp, false); |
d62a17ae | 946 | } |
f186de26 | 947 | } |
948 | ||
fb018d25 DS |
949 | DEFUN (show_ip_bgp_nexthop, |
950 | show_ip_bgp_nexthop_cmd, | |
5d76a53d | 951 | "show [ip] bgp [<view|vrf> VIEWVRFNAME] nexthop [<A.B.C.D|X:X::X:X>] [detail]", |
50ef26d4 | 952 | SHOW_STR |
953 | IP_STR | |
954 | BGP_STR | |
8386ac43 | 955 | BGP_INSTANCE_HELP_STR |
3a2d747c | 956 | "BGP nexthop table\n" |
5d76a53d | 957 | "IPv4 nexthop address\n" |
958 | "IPv6 nexthop address\n" | |
3a2d747c | 959 | "Show detailed information\n") |
50ef26d4 | 960 | { |
d62a17ae | 961 | int idx = 0; |
5d76a53d | 962 | int nh_idx = 0; |
b7ada628 | 963 | char *vrf = NULL; |
5d76a53d | 964 | char *nhop_ip = NULL; |
b7ada628 DS |
965 | |
966 | if (argv_find(argv, argc, "view", &idx) | |
967 | || argv_find(argv, argc, "vrf", &idx)) | |
968 | vrf = argv[++idx]->arg; | |
05e47722 | 969 | |
5d76a53d | 970 | if (argv_find(argv, argc, "A.B.C.D", &nh_idx) |
971 | || argv_find(argv, argc, "X:X::X:X", &nh_idx)) | |
972 | nhop_ip = argv[nh_idx]->arg; | |
973 | ||
974 | return show_ip_bgp_nexthop_table(vty, vrf, nhop_ip, false); | |
05e47722 PG |
975 | } |
976 | ||
977 | DEFUN (show_ip_bgp_import_check, | |
978 | show_ip_bgp_import_check_cmd, | |
979 | "show [ip] bgp [<view|vrf> VIEWVRFNAME] import-check-table [detail]", | |
980 | SHOW_STR | |
981 | IP_STR | |
982 | BGP_STR | |
983 | BGP_INSTANCE_HELP_STR | |
984 | "BGP import check table\n" | |
985 | "Show detailed information\n") | |
986 | { | |
987 | int idx = 0; | |
988 | char *vrf = NULL; | |
989 | ||
990 | if (argv_find(argv, argc, "view", &idx) | |
991 | || argv_find(argv, argc, "vrf", &idx)) | |
992 | vrf = argv[++idx]->arg; | |
5d76a53d | 993 | |
994 | return show_ip_bgp_nexthop_table(vty, vrf, NULL, true); | |
50ef26d4 | 995 | } |
996 | ||
f186de26 | 997 | DEFUN (show_ip_bgp_instance_all_nexthop, |
998 | show_ip_bgp_instance_all_nexthop_cmd, | |
bec37ba5 | 999 | "show [ip] bgp <view|vrf> all nexthop", |
f186de26 | 1000 | SHOW_STR |
1001 | IP_STR | |
1002 | BGP_STR | |
1003 | BGP_INSTANCE_ALL_HELP_STR | |
1004 | "BGP nexthop table\n") | |
1005 | { | |
d62a17ae | 1006 | bgp_show_all_instances_nexthops_vty(vty); |
1007 | return CMD_SUCCESS; | |
f186de26 | 1008 | } |
1009 | ||
d62a17ae | 1010 | void bgp_scan_init(struct bgp *bgp) |
718e3744 | 1011 | { |
d62a17ae | 1012 | afi_t afi; |
1013 | ||
1014 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
f663c581 RW |
1015 | bgp_nexthop_cache_init(&bgp->nexthop_cache_table[afi]); |
1016 | bgp_nexthop_cache_init(&bgp->import_check_table[afi]); | |
960035b2 PZ |
1017 | bgp->connected_table[afi] = bgp_table_init(bgp, afi, |
1018 | SAFI_UNICAST); | |
d62a17ae | 1019 | } |
fc9a856f DS |
1020 | } |
1021 | ||
d62a17ae | 1022 | void bgp_scan_vty_init(void) |
fc9a856f | 1023 | { |
d62a17ae | 1024 | install_element(VIEW_NODE, &show_ip_bgp_nexthop_cmd); |
05e47722 | 1025 | install_element(VIEW_NODE, &show_ip_bgp_import_check_cmd); |
d62a17ae | 1026 | install_element(VIEW_NODE, &show_ip_bgp_instance_all_nexthop_cmd); |
718e3744 | 1027 | } |
228da428 | 1028 | |
d62a17ae | 1029 | void bgp_scan_finish(struct bgp *bgp) |
228da428 | 1030 | { |
d62a17ae | 1031 | afi_t afi; |
6c88b44d | 1032 | |
d62a17ae | 1033 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
1034 | /* Only the current one needs to be reset. */ | |
f663c581 RW |
1035 | bgp_nexthop_cache_reset(&bgp->nexthop_cache_table[afi]); |
1036 | bgp_nexthop_cache_reset(&bgp->import_check_table[afi]); | |
228da428 | 1037 | |
3292693b DS |
1038 | bgp->connected_table[afi]->route_table->cleanup = |
1039 | bgp_connected_cleanup; | |
d62a17ae | 1040 | bgp_table_unlock(bgp->connected_table[afi]); |
1041 | bgp->connected_table[afi] = NULL; | |
d62a17ae | 1042 | } |
228da428 | 1043 | } |
987a720a DS |
1044 | |
1045 | char *bgp_nexthop_dump_bnc_flags(struct bgp_nexthop_cache *bnc, char *buf, | |
1046 | size_t len) | |
1047 | { | |
1048 | if (bnc->flags == 0) { | |
1049 | snprintfrr(buf, len, "None "); | |
1050 | return buf; | |
1051 | } | |
1052 | ||
1053 | snprintfrr(buf, len, "%s%s%s%s%s%s%s", | |
1054 | CHECK_FLAG(bnc->flags, BGP_NEXTHOP_VALID) ? "Valid " : "", | |
1055 | CHECK_FLAG(bnc->flags, BGP_NEXTHOP_REGISTERED) ? "Reg " : "", | |
1056 | CHECK_FLAG(bnc->flags, BGP_NEXTHOP_CONNECTED) ? "Conn " : "", | |
1057 | CHECK_FLAG(bnc->flags, BGP_NEXTHOP_PEER_NOTIFIED) ? "Notify " | |
1058 | : "", | |
1059 | CHECK_FLAG(bnc->flags, BGP_STATIC_ROUTE) ? "Static " : "", | |
1060 | CHECK_FLAG(bnc->flags, BGP_STATIC_ROUTE_EXACT_MATCH) | |
1061 | ? "Static Exact " | |
1062 | : "", | |
1063 | CHECK_FLAG(bnc->flags, BGP_NEXTHOP_LABELED_VALID) | |
1064 | ? "Label Valid " | |
1065 | : ""); | |
1066 | ||
1067 | return buf; | |
1068 | } | |
df2a41a9 DS |
1069 | |
1070 | char *bgp_nexthop_dump_bnc_change_flags(struct bgp_nexthop_cache *bnc, | |
1071 | char *buf, size_t len) | |
1072 | { | |
1073 | if (bnc->flags == 0) { | |
1074 | snprintfrr(buf, len, "None "); | |
1075 | return buf; | |
1076 | } | |
1077 | ||
1078 | snprintfrr(buf, len, "%s%s%s", | |
1079 | CHECK_FLAG(bnc->change_flags, BGP_NEXTHOP_CHANGED) | |
1080 | ? "Changed " | |
1081 | : "", | |
1082 | CHECK_FLAG(bnc->change_flags, BGP_NEXTHOP_METRIC_CHANGED) | |
1083 | ? "Metric " | |
1084 | : "", | |
1085 | CHECK_FLAG(bnc->change_flags, BGP_NEXTHOP_CONNECTED_CHANGED) | |
1086 | ? "Connected " | |
1087 | : ""); | |
1088 | ||
1089 | return buf; | |
1090 | } |