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718e3744 | 1 | /* BGP-4, BGP-4+ daemon program |
2 | Copyright (C) 1996, 97, 98, 99, 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 | ||
a38401b6 | 16 | You should have received a copy of the GN5U General Public License |
718e3744 | 17 | along with GNU Zebra; see the file COPYING. If not, write to the Free |
18 | Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
19 | 02111-1307, USA. */ | |
20 | ||
21 | #include <zebra.h> | |
22 | ||
856ca177 | 23 | #include "lib/json.h" |
718e3744 | 24 | #include "prefix.h" |
25 | #include "thread.h" | |
26 | #include "buffer.h" | |
27 | #include "stream.h" | |
28 | #include "command.h" | |
29 | #include "sockunion.h" | |
e9a0c656 | 30 | #include "sockopt.h" |
718e3744 | 31 | #include "network.h" |
32 | #include "memory.h" | |
33 | #include "filter.h" | |
34 | #include "routemap.h" | |
35 | #include "str.h" | |
36 | #include "log.h" | |
37 | #include "plist.h" | |
38 | #include "linklist.h" | |
200df115 | 39 | #include "workqueue.h" |
3f9c7369 | 40 | #include "queue.h" |
88177fe3 | 41 | #include "zclient.h" |
7f342629 | 42 | #include "bfd.h" |
dd793e4a DW |
43 | #include "hash.h" |
44 | #include "jhash.h" | |
587ff0fd | 45 | #include "table.h" |
718e3744 | 46 | |
47 | #include "bgpd/bgpd.h" | |
48 | #include "bgpd/bgp_table.h" | |
49 | #include "bgpd/bgp_aspath.h" | |
50 | #include "bgpd/bgp_route.h" | |
51 | #include "bgpd/bgp_dump.h" | |
52 | #include "bgpd/bgp_debug.h" | |
53 | #include "bgpd/bgp_community.h" | |
54 | #include "bgpd/bgp_attr.h" | |
55 | #include "bgpd/bgp_regex.h" | |
56 | #include "bgpd/bgp_clist.h" | |
57 | #include "bgpd/bgp_fsm.h" | |
58 | #include "bgpd/bgp_packet.h" | |
59 | #include "bgpd/bgp_zebra.h" | |
60 | #include "bgpd/bgp_open.h" | |
61 | #include "bgpd/bgp_filter.h" | |
62 | #include "bgpd/bgp_nexthop.h" | |
63 | #include "bgpd/bgp_damp.h" | |
64 | #include "bgpd/bgp_mplsvpn.h" | |
587ff0fd | 65 | #include "bgpd/bgp_encap.h" |
718e3744 | 66 | #include "bgpd/bgp_advertise.h" |
67 | #include "bgpd/bgp_network.h" | |
68 | #include "bgpd/bgp_vty.h" | |
165b5fff | 69 | #include "bgpd/bgp_mpath.h" |
fc9a856f | 70 | #include "bgpd/bgp_nht.h" |
718e3744 | 71 | #ifdef HAVE_SNMP |
72 | #include "bgpd/bgp_snmp.h" | |
73 | #endif /* HAVE_SNMP */ | |
3f9c7369 | 74 | #include "bgpd/bgp_updgrp.h" |
c43ed2e4 | 75 | #include "bgpd/bgp_bfd.h" |
4a1ab8e4 | 76 | #include "bgpd/bgp_memory.h" |
3f9c7369 | 77 | |
718e3744 | 78 | /* BGP process wide configuration. */ |
79 | static struct bgp_master bgp_master; | |
80 | ||
81 | /* BGP process wide configuration pointer to export. */ | |
82 | struct bgp_master *bm; | |
83 | ||
84 | /* BGP community-list. */ | |
85 | struct community_list_handler *bgp_clist; | |
6b0655a2 | 86 | |
b33adb7c | 87 | static void bgp_if_init (struct bgp *bgp); |
88 | static void bgp_if_finish (struct bgp *bgp); | |
89 | ||
ad4cbda1 | 90 | extern struct zclient *zclient; |
1ff9a340 | 91 | |
4c48cf63 | 92 | void |
1ff9a340 DS |
93 | bgp_session_reset(struct peer *peer) |
94 | { | |
95 | if (peer->doppelganger && (peer->doppelganger->status != Deleted) | |
96 | && !(CHECK_FLAG(peer->doppelganger->flags, PEER_FLAG_CONFIG_NODE))) | |
97 | peer_delete(peer->doppelganger); | |
98 | ||
99 | BGP_EVENT_ADD (peer, BGP_Stop); | |
100 | } | |
101 | ||
102 | /* | |
103 | * During session reset, we may delete the doppelganger peer, which would | |
104 | * be the next node to the current node. If the session reset was invoked | |
105 | * during walk of peer list, we would end up accessing the freed next | |
106 | * node. This function moves the next node along. | |
107 | */ | |
4c48cf63 | 108 | static void |
1ff9a340 DS |
109 | bgp_session_reset_safe(struct peer *peer, struct listnode **nnode) |
110 | { | |
111 | struct listnode *n; | |
112 | struct peer *npeer; | |
113 | ||
114 | n = (nnode) ? *nnode : NULL; | |
115 | npeer = (n) ? listgetdata(n) : NULL; | |
116 | ||
117 | if (peer->doppelganger && (peer->doppelganger->status != Deleted) | |
118 | && !(CHECK_FLAG(peer->doppelganger->flags, PEER_FLAG_CONFIG_NODE))) | |
119 | { | |
120 | if (peer->doppelganger == npeer) | |
121 | /* nnode and *nnode are confirmed to be non-NULL here */ | |
122 | *nnode = (*nnode)->next; | |
123 | peer_delete(peer->doppelganger); | |
124 | } | |
125 | ||
126 | BGP_EVENT_ADD (peer, BGP_Stop); | |
127 | } | |
128 | ||
718e3744 | 129 | /* BGP global flag manipulation. */ |
130 | int | |
131 | bgp_option_set (int flag) | |
132 | { | |
133 | switch (flag) | |
134 | { | |
135 | case BGP_OPT_NO_FIB: | |
136 | case BGP_OPT_MULTIPLE_INSTANCE: | |
137 | case BGP_OPT_CONFIG_CISCO: | |
cccbc015 | 138 | case BGP_OPT_NO_LISTEN: |
718e3744 | 139 | SET_FLAG (bm->options, flag); |
140 | break; | |
141 | default: | |
142 | return BGP_ERR_INVALID_FLAG; | |
718e3744 | 143 | } |
144 | return 0; | |
145 | } | |
146 | ||
147 | int | |
148 | bgp_option_unset (int flag) | |
149 | { | |
150 | switch (flag) | |
151 | { | |
152 | case BGP_OPT_MULTIPLE_INSTANCE: | |
153 | if (listcount (bm->bgp) > 1) | |
154 | return BGP_ERR_MULTIPLE_INSTANCE_USED; | |
155 | /* Fall through. */ | |
156 | case BGP_OPT_NO_FIB: | |
157 | case BGP_OPT_CONFIG_CISCO: | |
158 | UNSET_FLAG (bm->options, flag); | |
159 | break; | |
160 | default: | |
161 | return BGP_ERR_INVALID_FLAG; | |
718e3744 | 162 | } |
163 | return 0; | |
164 | } | |
165 | ||
166 | int | |
167 | bgp_option_check (int flag) | |
168 | { | |
169 | return CHECK_FLAG (bm->options, flag); | |
170 | } | |
6b0655a2 | 171 | |
718e3744 | 172 | /* BGP flag manipulation. */ |
173 | int | |
174 | bgp_flag_set (struct bgp *bgp, int flag) | |
175 | { | |
176 | SET_FLAG (bgp->flags, flag); | |
177 | return 0; | |
178 | } | |
179 | ||
180 | int | |
181 | bgp_flag_unset (struct bgp *bgp, int flag) | |
182 | { | |
183 | UNSET_FLAG (bgp->flags, flag); | |
184 | return 0; | |
185 | } | |
186 | ||
187 | int | |
188 | bgp_flag_check (struct bgp *bgp, int flag) | |
189 | { | |
190 | return CHECK_FLAG (bgp->flags, flag); | |
191 | } | |
6b0655a2 | 192 | |
718e3744 | 193 | /* Internal function to set BGP structure configureation flag. */ |
194 | static void | |
195 | bgp_config_set (struct bgp *bgp, int config) | |
196 | { | |
197 | SET_FLAG (bgp->config, config); | |
198 | } | |
199 | ||
200 | static void | |
201 | bgp_config_unset (struct bgp *bgp, int config) | |
202 | { | |
203 | UNSET_FLAG (bgp->config, config); | |
204 | } | |
205 | ||
206 | static int | |
207 | bgp_config_check (struct bgp *bgp, int config) | |
208 | { | |
209 | return CHECK_FLAG (bgp->config, config); | |
210 | } | |
6b0655a2 | 211 | |
718e3744 | 212 | /* Set BGP router identifier. */ |
0e6cb743 DL |
213 | static int |
214 | bgp_router_id_set (struct bgp *bgp, const struct in_addr *id) | |
718e3744 | 215 | { |
216 | struct peer *peer; | |
1eb8ef25 | 217 | struct listnode *node, *nnode; |
718e3744 | 218 | |
c2d58d6d | 219 | if (IPV4_ADDR_SAME (&bgp->router_id, id)) |
718e3744 | 220 | return 0; |
221 | ||
222 | IPV4_ADDR_COPY (&bgp->router_id, id); | |
718e3744 | 223 | |
224 | /* Set all peer's local identifier with this value. */ | |
1eb8ef25 | 225 | for (ALL_LIST_ELEMENTS (bgp->peer, node, nnode, peer)) |
718e3744 | 226 | { |
227 | IPV4_ADDR_COPY (&peer->local_id, id); | |
228 | ||
6aa136f1 | 229 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
e0701b79 | 230 | { |
231 | peer->last_reset = PEER_DOWN_RID_CHANGE; | |
232 | bgp_notify_send (peer, BGP_NOTIFY_CEASE, | |
233 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
234 | } | |
718e3744 | 235 | } |
236 | return 0; | |
237 | } | |
238 | ||
0e6cb743 DL |
239 | void |
240 | bgp_router_id_zebra_bump (vrf_id_t vrf_id, const struct prefix *router_id) | |
241 | { | |
242 | struct listnode *node, *nnode; | |
243 | struct bgp *bgp; | |
244 | ||
245 | if (vrf_id == VRF_DEFAULT) | |
246 | { | |
247 | /* Router-id change for default VRF has to also update all views. */ | |
248 | for (ALL_LIST_ELEMENTS (bm->bgp, node, nnode, bgp)) | |
249 | { | |
250 | if (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) | |
251 | continue; | |
252 | ||
253 | bgp->router_id_zebra = router_id->u.prefix4; | |
254 | if (!bgp->router_id_static.s_addr) | |
255 | bgp_router_id_set (bgp, &router_id->u.prefix4); | |
256 | } | |
257 | } | |
258 | else | |
259 | { | |
260 | bgp = bgp_lookup_by_vrf_id (vrf_id); | |
261 | if (bgp) | |
262 | { | |
263 | bgp->router_id_zebra = router_id->u.prefix4; | |
264 | ||
265 | if (!bgp->router_id_static.s_addr) | |
266 | bgp_router_id_set (bgp, &router_id->u.prefix4); | |
267 | } | |
268 | } | |
269 | } | |
270 | ||
271 | int | |
272 | bgp_router_id_static_set (struct bgp *bgp, struct in_addr id) | |
273 | { | |
274 | bgp->router_id_static = id; | |
275 | bgp_router_id_set (bgp, id.s_addr ? &id : &bgp->router_id_zebra); | |
276 | return 0; | |
277 | } | |
278 | ||
718e3744 | 279 | /* BGP's cluster-id control. */ |
280 | int | |
281 | bgp_cluster_id_set (struct bgp *bgp, struct in_addr *cluster_id) | |
282 | { | |
283 | struct peer *peer; | |
1eb8ef25 | 284 | struct listnode *node, *nnode; |
718e3744 | 285 | |
286 | if (bgp_config_check (bgp, BGP_CONFIG_CLUSTER_ID) | |
287 | && IPV4_ADDR_SAME (&bgp->cluster_id, cluster_id)) | |
288 | return 0; | |
289 | ||
290 | IPV4_ADDR_COPY (&bgp->cluster_id, cluster_id); | |
291 | bgp_config_set (bgp, BGP_CONFIG_CLUSTER_ID); | |
292 | ||
293 | /* Clear all IBGP peer. */ | |
1eb8ef25 | 294 | for (ALL_LIST_ELEMENTS (bgp->peer, node, nnode, peer)) |
718e3744 | 295 | { |
6d85b15b | 296 | if (peer->sort != BGP_PEER_IBGP) |
718e3744 | 297 | continue; |
298 | ||
6aa136f1 | 299 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
e0701b79 | 300 | { |
301 | peer->last_reset = PEER_DOWN_CLID_CHANGE; | |
302 | bgp_notify_send (peer, BGP_NOTIFY_CEASE, | |
303 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
304 | } | |
718e3744 | 305 | } |
306 | return 0; | |
307 | } | |
308 | ||
309 | int | |
310 | bgp_cluster_id_unset (struct bgp *bgp) | |
311 | { | |
312 | struct peer *peer; | |
1eb8ef25 | 313 | struct listnode *node, *nnode; |
718e3744 | 314 | |
315 | if (! bgp_config_check (bgp, BGP_CONFIG_CLUSTER_ID)) | |
316 | return 0; | |
317 | ||
318 | bgp->cluster_id.s_addr = 0; | |
319 | bgp_config_unset (bgp, BGP_CONFIG_CLUSTER_ID); | |
320 | ||
321 | /* Clear all IBGP peer. */ | |
1eb8ef25 | 322 | for (ALL_LIST_ELEMENTS (bgp->peer, node, nnode, peer)) |
718e3744 | 323 | { |
6d85b15b | 324 | if (peer->sort != BGP_PEER_IBGP) |
718e3744 | 325 | continue; |
326 | ||
6aa136f1 | 327 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
e0701b79 | 328 | { |
329 | peer->last_reset = PEER_DOWN_CLID_CHANGE; | |
330 | bgp_notify_send (peer, BGP_NOTIFY_CEASE, | |
331 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
332 | } | |
718e3744 | 333 | } |
334 | return 0; | |
335 | } | |
6b0655a2 | 336 | |
65957886 SH |
337 | /* time_t value that is monotonicly increasing |
338 | * and uneffected by adjustments to system clock | |
339 | */ | |
340 | time_t bgp_clock (void) | |
341 | { | |
342 | struct timeval tv; | |
343 | ||
344 | quagga_gettime(QUAGGA_CLK_MONOTONIC, &tv); | |
345 | return tv.tv_sec; | |
346 | } | |
347 | ||
718e3744 | 348 | /* BGP timer configuration. */ |
349 | int | |
350 | bgp_timers_set (struct bgp *bgp, u_int32_t keepalive, u_int32_t holdtime) | |
351 | { | |
352 | bgp->default_keepalive = (keepalive < holdtime / 3 | |
353 | ? keepalive : holdtime / 3); | |
354 | bgp->default_holdtime = holdtime; | |
355 | ||
356 | return 0; | |
357 | } | |
358 | ||
359 | int | |
360 | bgp_timers_unset (struct bgp *bgp) | |
361 | { | |
362 | bgp->default_keepalive = BGP_DEFAULT_KEEPALIVE; | |
363 | bgp->default_holdtime = BGP_DEFAULT_HOLDTIME; | |
364 | ||
365 | return 0; | |
366 | } | |
6b0655a2 | 367 | |
718e3744 | 368 | /* BGP confederation configuration. */ |
369 | int | |
370 | bgp_confederation_id_set (struct bgp *bgp, as_t as) | |
371 | { | |
372 | struct peer *peer; | |
1eb8ef25 | 373 | struct listnode *node, *nnode; |
718e3744 | 374 | int already_confed; |
375 | ||
376 | if (as == 0) | |
377 | return BGP_ERR_INVALID_AS; | |
378 | ||
379 | /* Remember - were we doing confederation before? */ | |
380 | already_confed = bgp_config_check (bgp, BGP_CONFIG_CONFEDERATION); | |
381 | bgp->confed_id = as; | |
382 | bgp_config_set (bgp, BGP_CONFIG_CONFEDERATION); | |
383 | ||
384 | /* If we were doing confederation already, this is just an external | |
385 | AS change. Just Reset EBGP sessions, not CONFED sessions. If we | |
386 | were not doing confederation before, reset all EBGP sessions. */ | |
1eb8ef25 | 387 | for (ALL_LIST_ELEMENTS (bgp->peer, node, nnode, peer)) |
718e3744 | 388 | { |
389 | /* We're looking for peers who's AS is not local or part of our | |
390 | confederation. */ | |
391 | if (already_confed) | |
392 | { | |
393 | if (peer_sort (peer) == BGP_PEER_EBGP) | |
394 | { | |
395 | peer->local_as = as; | |
6aa136f1 | 396 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
e0701b79 | 397 | { |
398 | peer->last_reset = PEER_DOWN_CONFED_ID_CHANGE; | |
399 | bgp_notify_send (peer, BGP_NOTIFY_CEASE, | |
400 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
401 | } | |
718e3744 | 402 | else |
1ff9a340 | 403 | bgp_session_reset_safe(peer, &nnode); |
718e3744 | 404 | } |
405 | } | |
406 | else | |
407 | { | |
408 | /* Not doign confederation before, so reset every non-local | |
409 | session */ | |
410 | if (peer_sort (peer) != BGP_PEER_IBGP) | |
411 | { | |
412 | /* Reset the local_as to be our EBGP one */ | |
413 | if (peer_sort (peer) == BGP_PEER_EBGP) | |
414 | peer->local_as = as; | |
6aa136f1 | 415 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
e0701b79 | 416 | { |
417 | peer->last_reset = PEER_DOWN_CONFED_ID_CHANGE; | |
418 | bgp_notify_send (peer, BGP_NOTIFY_CEASE, | |
419 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
420 | } | |
718e3744 | 421 | else |
1ff9a340 | 422 | bgp_session_reset_safe(peer, &nnode); |
718e3744 | 423 | } |
424 | } | |
425 | } | |
426 | return 0; | |
427 | } | |
428 | ||
429 | int | |
430 | bgp_confederation_id_unset (struct bgp *bgp) | |
431 | { | |
432 | struct peer *peer; | |
1eb8ef25 | 433 | struct listnode *node, *nnode; |
718e3744 | 434 | |
435 | bgp->confed_id = 0; | |
436 | bgp_config_unset (bgp, BGP_CONFIG_CONFEDERATION); | |
437 | ||
1eb8ef25 | 438 | for (ALL_LIST_ELEMENTS (bgp->peer, node, nnode, peer)) |
718e3744 | 439 | { |
440 | /* We're looking for peers who's AS is not local */ | |
441 | if (peer_sort (peer) != BGP_PEER_IBGP) | |
442 | { | |
443 | peer->local_as = bgp->as; | |
6aa136f1 | 444 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
e0701b79 | 445 | { |
446 | peer->last_reset = PEER_DOWN_CONFED_ID_CHANGE; | |
447 | bgp_notify_send (peer, BGP_NOTIFY_CEASE, | |
448 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
449 | } | |
450 | ||
718e3744 | 451 | else |
1ff9a340 | 452 | bgp_session_reset_safe(peer, &nnode); |
718e3744 | 453 | } |
454 | } | |
455 | return 0; | |
456 | } | |
457 | ||
458 | /* Is an AS part of the confed or not? */ | |
459 | int | |
460 | bgp_confederation_peers_check (struct bgp *bgp, as_t as) | |
461 | { | |
462 | int i; | |
463 | ||
464 | if (! bgp) | |
465 | return 0; | |
466 | ||
467 | for (i = 0; i < bgp->confed_peers_cnt; i++) | |
468 | if (bgp->confed_peers[i] == as) | |
469 | return 1; | |
470 | ||
471 | return 0; | |
472 | } | |
473 | ||
474 | /* Add an AS to the confederation set. */ | |
475 | int | |
476 | bgp_confederation_peers_add (struct bgp *bgp, as_t as) | |
477 | { | |
478 | struct peer *peer; | |
1eb8ef25 | 479 | struct listnode *node, *nnode; |
718e3744 | 480 | |
481 | if (! bgp) | |
482 | return BGP_ERR_INVALID_BGP; | |
483 | ||
484 | if (bgp->as == as) | |
485 | return BGP_ERR_INVALID_AS; | |
486 | ||
487 | if (bgp_confederation_peers_check (bgp, as)) | |
488 | return -1; | |
489 | ||
490 | if (bgp->confed_peers) | |
491 | bgp->confed_peers = XREALLOC (MTYPE_BGP_CONFED_LIST, | |
492 | bgp->confed_peers, | |
493 | (bgp->confed_peers_cnt + 1) * sizeof (as_t)); | |
494 | else | |
495 | bgp->confed_peers = XMALLOC (MTYPE_BGP_CONFED_LIST, | |
496 | (bgp->confed_peers_cnt + 1) * sizeof (as_t)); | |
497 | ||
498 | bgp->confed_peers[bgp->confed_peers_cnt] = as; | |
499 | bgp->confed_peers_cnt++; | |
500 | ||
501 | if (bgp_config_check (bgp, BGP_CONFIG_CONFEDERATION)) | |
502 | { | |
1eb8ef25 | 503 | for (ALL_LIST_ELEMENTS (bgp->peer, node, nnode, peer)) |
718e3744 | 504 | { |
505 | if (peer->as == as) | |
506 | { | |
507 | peer->local_as = bgp->as; | |
6aa136f1 | 508 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
e0701b79 | 509 | { |
510 | peer->last_reset = PEER_DOWN_CONFED_PEER_CHANGE; | |
511 | bgp_notify_send (peer, BGP_NOTIFY_CEASE, | |
512 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
513 | } | |
718e3744 | 514 | else |
1ff9a340 | 515 | bgp_session_reset_safe(peer, &nnode); |
718e3744 | 516 | } |
517 | } | |
518 | } | |
519 | return 0; | |
520 | } | |
521 | ||
522 | /* Delete an AS from the confederation set. */ | |
523 | int | |
524 | bgp_confederation_peers_remove (struct bgp *bgp, as_t as) | |
525 | { | |
526 | int i; | |
527 | int j; | |
528 | struct peer *peer; | |
1eb8ef25 | 529 | struct listnode *node, *nnode; |
718e3744 | 530 | |
531 | if (! bgp) | |
532 | return -1; | |
533 | ||
534 | if (! bgp_confederation_peers_check (bgp, as)) | |
535 | return -1; | |
536 | ||
537 | for (i = 0; i < bgp->confed_peers_cnt; i++) | |
538 | if (bgp->confed_peers[i] == as) | |
539 | for(j = i + 1; j < bgp->confed_peers_cnt; j++) | |
540 | bgp->confed_peers[j - 1] = bgp->confed_peers[j]; | |
541 | ||
542 | bgp->confed_peers_cnt--; | |
543 | ||
544 | if (bgp->confed_peers_cnt == 0) | |
545 | { | |
546 | if (bgp->confed_peers) | |
547 | XFREE (MTYPE_BGP_CONFED_LIST, bgp->confed_peers); | |
548 | bgp->confed_peers = NULL; | |
549 | } | |
550 | else | |
551 | bgp->confed_peers = XREALLOC (MTYPE_BGP_CONFED_LIST, | |
552 | bgp->confed_peers, | |
553 | bgp->confed_peers_cnt * sizeof (as_t)); | |
554 | ||
555 | /* Now reset any peer who's remote AS has just been removed from the | |
556 | CONFED */ | |
557 | if (bgp_config_check (bgp, BGP_CONFIG_CONFEDERATION)) | |
558 | { | |
1eb8ef25 | 559 | for (ALL_LIST_ELEMENTS (bgp->peer, node, nnode, peer)) |
718e3744 | 560 | { |
561 | if (peer->as == as) | |
562 | { | |
563 | peer->local_as = bgp->confed_id; | |
6aa136f1 | 564 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
e0701b79 | 565 | { |
566 | peer->last_reset = PEER_DOWN_CONFED_PEER_CHANGE; | |
567 | bgp_notify_send (peer, BGP_NOTIFY_CEASE, | |
568 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
569 | } | |
718e3744 | 570 | else |
1ff9a340 | 571 | bgp_session_reset_safe(peer, &nnode); |
718e3744 | 572 | } |
573 | } | |
574 | } | |
575 | ||
576 | return 0; | |
577 | } | |
6b0655a2 | 578 | |
718e3744 | 579 | /* Local preference configuration. */ |
580 | int | |
581 | bgp_default_local_preference_set (struct bgp *bgp, u_int32_t local_pref) | |
582 | { | |
583 | if (! bgp) | |
584 | return -1; | |
585 | ||
718e3744 | 586 | bgp->default_local_pref = local_pref; |
587 | ||
588 | return 0; | |
589 | } | |
590 | ||
591 | int | |
592 | bgp_default_local_preference_unset (struct bgp *bgp) | |
593 | { | |
594 | if (! bgp) | |
595 | return -1; | |
596 | ||
718e3744 | 597 | bgp->default_local_pref = BGP_DEFAULT_LOCAL_PREF; |
598 | ||
599 | return 0; | |
600 | } | |
6b0655a2 | 601 | |
3f9c7369 DS |
602 | /* Local preference configuration. */ |
603 | int | |
604 | bgp_default_subgroup_pkt_queue_max_set (struct bgp *bgp, u_int32_t queue_size) | |
605 | { | |
606 | if (! bgp) | |
607 | return -1; | |
608 | ||
609 | bgp->default_subgroup_pkt_queue_max = queue_size; | |
610 | ||
611 | return 0; | |
612 | } | |
613 | ||
614 | int | |
615 | bgp_default_subgroup_pkt_queue_max_unset (struct bgp *bgp) | |
616 | { | |
617 | if (! bgp) | |
618 | return -1; | |
619 | bgp->default_subgroup_pkt_queue_max = BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX; | |
620 | ||
621 | return 0; | |
622 | } | |
623 | ||
f14e6fdb DS |
624 | /* Listen limit configuration. */ |
625 | int | |
626 | bgp_listen_limit_set (struct bgp *bgp, int listen_limit) | |
627 | { | |
628 | if (! bgp) | |
629 | return -1; | |
630 | ||
631 | bgp->dynamic_neighbors_limit = listen_limit; | |
632 | ||
633 | return 0; | |
634 | } | |
635 | ||
636 | int | |
637 | bgp_listen_limit_unset (struct bgp *bgp) | |
638 | { | |
639 | if (! bgp) | |
640 | return -1; | |
641 | ||
642 | bgp->dynamic_neighbors_limit = BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT; | |
643 | ||
644 | return 0; | |
645 | } | |
646 | ||
3f9c7369 DS |
647 | struct peer_af * |
648 | peer_af_create (struct peer *peer, afi_t afi, safi_t safi) | |
649 | { | |
650 | struct peer_af *af; | |
651 | int afid; | |
652 | ||
653 | if (!peer) | |
654 | return NULL; | |
655 | ||
656 | afid = afindex(afi, safi); | |
657 | if (afid >= BGP_AF_MAX) | |
658 | return NULL; | |
659 | ||
660 | assert(peer->peer_af_array[afid] == NULL); | |
661 | ||
662 | /* Allocate new peer af */ | |
663 | af = XCALLOC (MTYPE_BGP_PEER_AF, sizeof (struct peer_af)); | |
c8560b44 DW |
664 | |
665 | if (af == NULL) | |
666 | { | |
667 | zlog_err("Could not create af structure for peer %s", peer->host); | |
668 | return NULL; | |
669 | } | |
670 | ||
3f9c7369 DS |
671 | peer->peer_af_array[afid] = af; |
672 | af->afi = afi; | |
673 | af->safi = safi; | |
674 | af->afid = afid; | |
675 | af->peer = peer; | |
676 | ||
3f9c7369 DS |
677 | return af; |
678 | } | |
679 | ||
680 | struct peer_af * | |
681 | peer_af_find (struct peer *peer, afi_t afi, safi_t safi) | |
682 | { | |
683 | int afid; | |
684 | ||
685 | if (!peer) | |
686 | return NULL; | |
687 | ||
688 | afid = afindex(afi, safi); | |
689 | if (afid >= BGP_AF_MAX) | |
690 | return NULL; | |
691 | ||
692 | return peer->peer_af_array[afid]; | |
693 | } | |
694 | ||
695 | int | |
696 | peer_af_delete (struct peer *peer, afi_t afi, safi_t safi) | |
697 | { | |
698 | struct peer_af *af; | |
699 | int afid; | |
700 | ||
701 | if (!peer) | |
702 | return -1; | |
703 | ||
704 | afid = afindex(afi, safi); | |
705 | if (afid >= BGP_AF_MAX) | |
706 | return -1; | |
707 | ||
708 | af = peer->peer_af_array[afid]; | |
709 | if (!af) | |
710 | return -1; | |
711 | ||
712 | bgp_stop_announce_route_timer (af); | |
713 | ||
714 | if (PAF_SUBGRP(af)) | |
715 | { | |
716 | if (BGP_DEBUG (update_groups, UPDATE_GROUPS)) | |
ffd0c037 | 717 | zlog_debug ("u%" PRIu64 ":s%" PRIu64 " remove peer %s", |
3f9c7369 DS |
718 | af->subgroup->update_group->id, af->subgroup->id, peer->host); |
719 | } | |
720 | ||
721 | update_subgroup_remove_peer (af->subgroup, af); | |
722 | ||
723 | peer->peer_af_array[afid] = NULL; | |
724 | XFREE(MTYPE_BGP_PEER_AF, af); | |
725 | return 0; | |
726 | } | |
727 | ||
eb821189 | 728 | /* Peer comparison function for sorting. */ |
16286195 | 729 | int |
718e3744 | 730 | peer_cmp (struct peer *p1, struct peer *p2) |
731 | { | |
0aaa34db DS |
732 | if (p1->group && !p2->group) |
733 | return -1; | |
734 | ||
735 | if (!p1->group && p2->group) | |
736 | return 1; | |
737 | ||
738 | if (p1->group == p2->group) | |
739 | { | |
740 | if (p1->conf_if && !p2->conf_if) | |
741 | return -1; | |
742 | ||
743 | if (!p1->conf_if && p2->conf_if) | |
744 | return 1; | |
745 | ||
746 | if (p1->conf_if && p2->conf_if) | |
747 | return if_cmp_name_func (p1->conf_if, p2->conf_if); | |
748 | } | |
749 | else | |
750 | return strcmp (p1->group->name, p2->group->name); | |
751 | ||
eb821189 | 752 | return sockunion_cmp (&p1->su, &p2->su); |
718e3744 | 753 | } |
754 | ||
dd793e4a DW |
755 | static unsigned int |
756 | peer_hash_key_make(void *p) | |
757 | { | |
758 | struct peer *peer = p; | |
759 | return sockunion_hash(&peer->su); | |
760 | } | |
761 | ||
762 | static int | |
763 | peer_hash_cmp (const void *p1, const void *p2) | |
764 | { | |
765 | const struct peer *peer1 = p1; | |
766 | const struct peer *peer2 = p2; | |
767 | return (sockunion_same (&peer1->su, &peer2->su) && | |
768 | CHECK_FLAG (peer1->flags, PEER_FLAG_CONFIG_NODE) == CHECK_FLAG (peer2->flags, PEER_FLAG_CONFIG_NODE)); | |
769 | } | |
770 | ||
718e3744 | 771 | int |
772 | peer_af_flag_check (struct peer *peer, afi_t afi, safi_t safi, u_int32_t flag) | |
773 | { | |
774 | return CHECK_FLAG (peer->af_flags[afi][safi], flag); | |
775 | } | |
776 | ||
88b8ed8d DW |
777 | /* Return true if flag is set for the peer but not the peer-group */ |
778 | static int | |
779 | peergroup_af_flag_check (struct peer *peer, afi_t afi, safi_t safi, u_int32_t flag) | |
780 | { | |
781 | struct peer *g_peer = NULL; | |
782 | ||
783 | if (peer_af_flag_check (peer, afi, safi, flag)) | |
784 | { | |
785 | if (peer_group_active (peer)) | |
786 | { | |
787 | g_peer = peer->group->conf; | |
788 | ||
789 | /* If this flag is not set for the peer's peer-group then return true */ | |
c8560b44 | 790 | if (!peer_af_flag_check (g_peer, afi, safi, flag)) |
88b8ed8d DW |
791 | { |
792 | return 1; | |
793 | } | |
794 | } | |
795 | ||
796 | /* peer is not in a peer-group but the flag is set to return true */ | |
797 | else | |
798 | { | |
799 | return 1; | |
800 | } | |
801 | } | |
802 | ||
803 | return 0; | |
804 | } | |
805 | ||
718e3744 | 806 | /* Reset all address family specific configuration. */ |
807 | static void | |
808 | peer_af_flag_reset (struct peer *peer, afi_t afi, safi_t safi) | |
809 | { | |
810 | int i; | |
811 | struct bgp_filter *filter; | |
812 | char orf_name[BUFSIZ]; | |
813 | ||
814 | filter = &peer->filter[afi][safi]; | |
815 | ||
816 | /* Clear neighbor filter and route-map */ | |
817 | for (i = FILTER_IN; i < FILTER_MAX; i++) | |
818 | { | |
819 | if (filter->dlist[i].name) | |
820 | { | |
6e919709 | 821 | XFREE(MTYPE_BGP_FILTER_NAME, filter->dlist[i].name); |
718e3744 | 822 | filter->dlist[i].name = NULL; |
823 | } | |
824 | if (filter->plist[i].name) | |
825 | { | |
6e919709 | 826 | XFREE(MTYPE_BGP_FILTER_NAME, filter->plist[i].name); |
718e3744 | 827 | filter->plist[i].name = NULL; |
828 | } | |
829 | if (filter->aslist[i].name) | |
830 | { | |
6e919709 | 831 | XFREE(MTYPE_BGP_FILTER_NAME, filter->aslist[i].name); |
718e3744 | 832 | filter->aslist[i].name = NULL; |
833 | } | |
fee0f4c6 | 834 | } |
835 | for (i = RMAP_IN; i < RMAP_MAX; i++) | |
836 | { | |
718e3744 | 837 | if (filter->map[i].name) |
838 | { | |
6e919709 | 839 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[i].name); |
718e3744 | 840 | filter->map[i].name = NULL; |
841 | } | |
842 | } | |
843 | ||
844 | /* Clear unsuppress map. */ | |
845 | if (filter->usmap.name) | |
6e919709 | 846 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); |
718e3744 | 847 | filter->usmap.name = NULL; |
848 | filter->usmap.map = NULL; | |
849 | ||
850 | /* Clear neighbor's all address family flags. */ | |
851 | peer->af_flags[afi][safi] = 0; | |
852 | ||
853 | /* Clear neighbor's all address family sflags. */ | |
854 | peer->af_sflags[afi][safi] = 0; | |
855 | ||
856 | /* Clear neighbor's all address family capabilities. */ | |
857 | peer->af_cap[afi][safi] = 0; | |
858 | ||
859 | /* Clear ORF info */ | |
860 | peer->orf_plist[afi][safi] = NULL; | |
861 | sprintf (orf_name, "%s.%d.%d", peer->host, afi, safi); | |
c7da3d50 | 862 | prefix_bgp_orf_remove_all (afi, orf_name); |
718e3744 | 863 | |
864 | /* Set default neighbor send-community. */ | |
865 | if (! bgp_option_check (BGP_OPT_CONFIG_CISCO)) | |
866 | { | |
867 | SET_FLAG (peer->af_flags[afi][safi], PEER_FLAG_SEND_COMMUNITY); | |
868 | SET_FLAG (peer->af_flags[afi][safi], PEER_FLAG_SEND_EXT_COMMUNITY); | |
869 | } | |
870 | ||
871 | /* Clear neighbor default_originate_rmap */ | |
872 | if (peer->default_rmap[afi][safi].name) | |
6e919709 | 873 | XFREE(MTYPE_ROUTE_MAP_NAME, peer->default_rmap[afi][safi].name); |
718e3744 | 874 | peer->default_rmap[afi][safi].name = NULL; |
875 | peer->default_rmap[afi][safi].map = NULL; | |
876 | ||
877 | /* Clear neighbor maximum-prefix */ | |
878 | peer->pmax[afi][safi] = 0; | |
e0701b79 | 879 | peer->pmax_threshold[afi][safi] = MAXIMUM_PREFIX_THRESHOLD_DEFAULT; |
718e3744 | 880 | } |
881 | ||
882 | /* peer global config reset */ | |
94f2b392 | 883 | static void |
718e3744 | 884 | peer_global_config_reset (struct peer *peer) |
885 | { | |
8ffedcea DS |
886 | |
887 | int v6only; | |
888 | ||
718e3744 | 889 | peer->weight = 0; |
890 | peer->change_local_as = 0; | |
9b1be336 | 891 | peer->ttl = (peer_sort (peer) == BGP_PEER_IBGP ? MAXTTL : 1); |
718e3744 | 892 | if (peer->update_source) |
893 | { | |
894 | sockunion_free (peer->update_source); | |
895 | peer->update_source = NULL; | |
896 | } | |
897 | if (peer->update_if) | |
898 | { | |
899 | XFREE (MTYPE_PEER_UPDATE_SOURCE, peer->update_if); | |
900 | peer->update_if = NULL; | |
901 | } | |
902 | ||
903 | if (peer_sort (peer) == BGP_PEER_IBGP) | |
904 | peer->v_routeadv = BGP_DEFAULT_IBGP_ROUTEADV; | |
905 | else | |
906 | peer->v_routeadv = BGP_DEFAULT_EBGP_ROUTEADV; | |
907 | ||
8ffedcea DS |
908 | /* This is a per-peer specific flag and so we must preserve it */ |
909 | v6only = CHECK_FLAG(peer->flags, PEER_FLAG_IFPEER_V6ONLY); | |
910 | ||
718e3744 | 911 | peer->flags = 0; |
8ffedcea DS |
912 | |
913 | if (v6only) | |
914 | SET_FLAG(peer->flags, PEER_FLAG_IFPEER_V6ONLY); | |
915 | ||
718e3744 | 916 | peer->config = 0; |
917 | peer->holdtime = 0; | |
918 | peer->keepalive = 0; | |
919 | peer->connect = 0; | |
920 | peer->v_connect = BGP_DEFAULT_CONNECT_RETRY; | |
821a359a DS |
921 | |
922 | /* Reset some other configs back to defaults. */ | |
923 | peer->v_start = BGP_INIT_START_TIMER; | |
821a359a DS |
924 | peer->password = NULL; |
925 | peer->local_id = peer->bgp->router_id; | |
926 | peer->v_holdtime = peer->bgp->default_holdtime; | |
927 | peer->v_keepalive = peer->bgp->default_keepalive; | |
928 | ||
7f342629 DS |
929 | bfd_info_free(&(peer->bfd_info)); |
930 | ||
821a359a DS |
931 | /* Set back the CONFIG_NODE flag. */ |
932 | SET_FLAG (peer->flags, PEER_FLAG_CONFIG_NODE); | |
718e3744 | 933 | } |
934 | ||
6d85b15b JBD |
935 | /* Check peer's AS number and determines if this peer is IBGP or EBGP */ |
936 | static bgp_peer_sort_t | |
937 | peer_calc_sort (struct peer *peer) | |
718e3744 | 938 | { |
939 | struct bgp *bgp; | |
940 | ||
941 | bgp = peer->bgp; | |
942 | ||
943 | /* Peer-group */ | |
944 | if (CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) | |
945 | { | |
66b199b2 DS |
946 | if (peer->as_type == AS_INTERNAL) |
947 | return BGP_PEER_IBGP; | |
948 | ||
949 | else if (peer->as_type == AS_EXTERNAL) | |
950 | return BGP_PEER_EBGP; | |
951 | ||
952 | else if (peer->as_type == AS_SPECIFIED && peer->as) | |
718e3744 | 953 | return (bgp->as == peer->as ? BGP_PEER_IBGP : BGP_PEER_EBGP); |
66b199b2 | 954 | |
718e3744 | 955 | else |
956 | { | |
957 | struct peer *peer1; | |
958 | peer1 = listnode_head (peer->group->peer); | |
66b199b2 | 959 | |
718e3744 | 960 | if (peer1) |
66b199b2 | 961 | return peer1->sort; |
718e3744 | 962 | } |
963 | return BGP_PEER_INTERNAL; | |
964 | } | |
965 | ||
966 | /* Normal peer */ | |
967 | if (bgp && CHECK_FLAG (bgp->config, BGP_CONFIG_CONFEDERATION)) | |
968 | { | |
969 | if (peer->local_as == 0) | |
970 | return BGP_PEER_INTERNAL; | |
971 | ||
972 | if (peer->local_as == peer->as) | |
973 | { | |
66b199b2 DS |
974 | if (bgp->as == bgp->confed_id) |
975 | { | |
976 | if (peer->local_as == bgp->as) | |
977 | return BGP_PEER_IBGP; | |
978 | else | |
979 | return BGP_PEER_EBGP; | |
980 | } | |
981 | else | |
982 | { | |
983 | if (peer->local_as == bgp->confed_id) | |
984 | return BGP_PEER_EBGP; | |
985 | else | |
986 | return BGP_PEER_IBGP; | |
987 | } | |
718e3744 | 988 | } |
989 | ||
990 | if (bgp_confederation_peers_check (bgp, peer->as)) | |
991 | return BGP_PEER_CONFED; | |
992 | ||
993 | return BGP_PEER_EBGP; | |
994 | } | |
995 | else | |
996 | { | |
0299c004 DS |
997 | if (peer->as_type != AS_SPECIFIED) |
998 | return (peer->as_type == AS_INTERNAL ? BGP_PEER_IBGP : BGP_PEER_EBGP); | |
999 | ||
718e3744 | 1000 | return (peer->local_as == 0 |
1001 | ? BGP_PEER_INTERNAL : peer->local_as == peer->as | |
1002 | ? BGP_PEER_IBGP : BGP_PEER_EBGP); | |
1003 | } | |
1004 | } | |
1005 | ||
6d85b15b JBD |
1006 | /* Calculate and cache the peer "sort" */ |
1007 | bgp_peer_sort_t | |
1008 | peer_sort (struct peer *peer) | |
1009 | { | |
1010 | peer->sort = peer_calc_sort (peer); | |
1011 | return peer->sort; | |
1012 | } | |
1013 | ||
f63f06da | 1014 | static void |
200df115 | 1015 | peer_free (struct peer *peer) |
1016 | { | |
ca058a30 | 1017 | assert (peer->status == Deleted); |
0088b5dc SH |
1018 | |
1019 | bgp_unlock(peer->bgp); | |
1020 | ||
ca058a30 PJ |
1021 | /* this /ought/ to have been done already through bgp_stop earlier, |
1022 | * but just to be sure.. | |
1023 | */ | |
1024 | bgp_timer_set (peer); | |
1025 | BGP_READ_OFF (peer->t_read); | |
1026 | BGP_WRITE_OFF (peer->t_write); | |
9fde6624 | 1027 | BGP_EVENT_FLUSH (peer); |
ca058a30 | 1028 | |
9a233a02 DS |
1029 | /* Free connected nexthop, if present */ |
1030 | if (CHECK_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE) && | |
1031 | !peer_dynamic_neighbor (peer)) | |
1032 | bgp_delete_connected_nexthop (family2afi(peer->su.sa.sa_family), peer); | |
1033 | ||
200df115 | 1034 | if (peer->desc) |
9e08021c DW |
1035 | { |
1036 | XFREE (MTYPE_PEER_DESC, peer->desc); | |
1037 | peer->desc = NULL; | |
1038 | } | |
200df115 | 1039 | |
1040 | /* Free allocated host character. */ | |
1041 | if (peer->host) | |
9e08021c DW |
1042 | { |
1043 | XFREE (MTYPE_BGP_PEER_HOST, peer->host); | |
1044 | peer->host = NULL; | |
1045 | } | |
6e919709 DS |
1046 | |
1047 | if (peer->ifname) | |
9e08021c DW |
1048 | { |
1049 | XFREE(MTYPE_BGP_PEER_IFNAME, peer->ifname); | |
1050 | peer->ifname = NULL; | |
1051 | } | |
6e919709 | 1052 | |
200df115 | 1053 | /* Update source configuration. */ |
1054 | if (peer->update_source) | |
9e08021c DW |
1055 | { |
1056 | sockunion_free (peer->update_source); | |
1057 | peer->update_source = NULL; | |
1058 | } | |
200df115 | 1059 | |
1060 | if (peer->update_if) | |
9e08021c DW |
1061 | { |
1062 | XFREE (MTYPE_PEER_UPDATE_SOURCE, peer->update_if); | |
1063 | peer->update_if = NULL; | |
1064 | } | |
6e919709 DS |
1065 | |
1066 | if (peer->notify.data) | |
1067 | XFREE(MTYPE_TMP, peer->notify.data); | |
9e08021c | 1068 | memset (&peer->notify, 0, sizeof (struct bgp_notify)); |
6e919709 | 1069 | |
495f0b13 | 1070 | if (peer->clear_node_queue) |
9e08021c DW |
1071 | { |
1072 | work_queue_free(peer->clear_node_queue); | |
1073 | peer->clear_node_queue = NULL; | |
1074 | } | |
495f0b13 | 1075 | |
ca058a30 | 1076 | bgp_sync_delete (peer); |
a80beece DS |
1077 | |
1078 | if (peer->conf_if) | |
9e08021c DW |
1079 | { |
1080 | XFREE (MTYPE_PEER_CONF_IF, peer->conf_if); | |
1081 | peer->conf_if = NULL; | |
1082 | } | |
a80beece | 1083 | |
7f342629 | 1084 | bfd_info_free(&(peer->bfd_info)); |
c43ed2e4 | 1085 | |
200df115 | 1086 | memset (peer, 0, sizeof (struct peer)); |
1087 | ||
1088 | XFREE (MTYPE_BGP_PEER, peer); | |
1089 | } | |
1090 | ||
1091 | /* increase reference count on a struct peer */ | |
1092 | struct peer * | |
28066f4b | 1093 | peer_lock_with_caller (const char *name, struct peer *peer) |
200df115 | 1094 | { |
1095 | assert (peer && (peer->lock >= 0)); | |
28066f4b DS |
1096 | |
1097 | #if 0 | |
1098 | zlog_debug("%s peer_lock %p %d", name, peer, peer->lock); | |
1099 | #endif | |
ca058a30 | 1100 | |
200df115 | 1101 | peer->lock++; |
1102 | ||
1103 | return peer; | |
1104 | } | |
1105 | ||
1106 | /* decrease reference count on a struct peer | |
1107 | * struct peer is freed and NULL returned if last reference | |
1108 | */ | |
1109 | struct peer * | |
28066f4b | 1110 | peer_unlock_with_caller (const char *name, struct peer *peer) |
200df115 | 1111 | { |
1112 | assert (peer && (peer->lock > 0)); | |
28066f4b DS |
1113 | |
1114 | #if 0 | |
1115 | zlog_debug("%s peer_unlock %p %d", name, peer, peer->lock); | |
1116 | #endif | |
200df115 | 1117 | |
1118 | peer->lock--; | |
1119 | ||
1120 | if (peer->lock == 0) | |
1121 | { | |
200df115 | 1122 | peer_free (peer); |
1123 | return NULL; | |
1124 | } | |
1125 | ||
200df115 | 1126 | return peer; |
1127 | } | |
1ff9a340 | 1128 | |
200df115 | 1129 | /* Allocate new peer object, implicitely locked. */ |
718e3744 | 1130 | static struct peer * |
6f58544d | 1131 | peer_new (struct bgp *bgp) |
718e3744 | 1132 | { |
1133 | afi_t afi; | |
1134 | safi_t safi; | |
1135 | struct peer *peer; | |
1136 | struct servent *sp; | |
6f58544d PJ |
1137 | |
1138 | /* bgp argument is absolutely required */ | |
1139 | assert (bgp); | |
1140 | if (!bgp) | |
1141 | return NULL; | |
1142 | ||
718e3744 | 1143 | /* Allocate new peer. */ |
ca058a30 | 1144 | peer = XCALLOC (MTYPE_BGP_PEER, sizeof (struct peer)); |
718e3744 | 1145 | |
1146 | /* Set default value. */ | |
eb821189 | 1147 | peer->fd = -1; |
718e3744 | 1148 | peer->v_start = BGP_INIT_START_TIMER; |
1149 | peer->v_connect = BGP_DEFAULT_CONNECT_RETRY; | |
718e3744 | 1150 | peer->status = Idle; |
1151 | peer->ostatus = Idle; | |
6403814c | 1152 | peer->cur_event = peer->last_event = peer->last_major_event = 0; |
6f58544d | 1153 | peer->bgp = bgp; |
ca058a30 | 1154 | peer = peer_lock (peer); /* initial reference */ |
0088b5dc | 1155 | bgp_lock (bgp); |
1ff9a340 DS |
1156 | peer->weight = 0; |
1157 | peer->password = NULL; | |
718e3744 | 1158 | |
1159 | /* Set default flags. */ | |
1160 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
1161 | for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++) | |
1162 | { | |
1163 | if (! bgp_option_check (BGP_OPT_CONFIG_CISCO)) | |
1164 | { | |
1165 | SET_FLAG (peer->af_flags[afi][safi], PEER_FLAG_SEND_COMMUNITY); | |
1166 | SET_FLAG (peer->af_flags[afi][safi], PEER_FLAG_SEND_EXT_COMMUNITY); | |
1167 | } | |
1168 | peer->orf_plist[afi][safi] = NULL; | |
1169 | } | |
1170 | SET_FLAG (peer->sflags, PEER_STATUS_CAPABILITY_OPEN); | |
1171 | ||
1172 | /* Create buffers. */ | |
1173 | peer->ibuf = stream_new (BGP_MAX_PACKET_SIZE); | |
1174 | peer->obuf = stream_fifo_new (); | |
0a91ff55 DS |
1175 | |
1176 | /* We use a larger buffer for peer->work in the event that: | |
1177 | * - We RX a BGP_UPDATE where the attributes alone are just | |
1178 | * under BGP_MAX_PACKET_SIZE | |
1179 | * - The user configures an outbound route-map that does many as-path | |
1180 | * prepends or adds many communities. At most they can have CMD_ARGC_MAX | |
1181 | * args in a route-map so there is a finite limit on how large they can | |
1182 | * make the attributes. | |
1183 | * | |
1184 | * Having a buffer with BGP_MAX_PACKET_SIZE_OVERFLOW allows us to avoid bounds | |
1185 | * checking for every single attribute as we construct an UPDATE. | |
1186 | */ | |
1187 | peer->work = stream_new (BGP_MAX_PACKET_SIZE + BGP_MAX_PACKET_SIZE_OVERFLOW); | |
8c71e481 | 1188 | peer->scratch = stream_new (BGP_MAX_PACKET_SIZE); |
718e3744 | 1189 | |
1ff9a340 | 1190 | |
718e3744 | 1191 | bgp_sync_init (peer); |
1192 | ||
1193 | /* Get service port number. */ | |
1194 | sp = getservbyname ("bgp", "tcp"); | |
1195 | peer->port = (sp == NULL) ? BGP_PORT_DEFAULT : ntohs (sp->s_port); | |
1196 | ||
1197 | return peer; | |
1198 | } | |
1199 | ||
1ff9a340 DS |
1200 | /* |
1201 | * This function is invoked when a duplicate peer structure associated with | |
1202 | * a neighbor is being deleted. If this about-to-be-deleted structure is | |
1203 | * the one with all the config, then we have to copy over the info. | |
1204 | */ | |
1205 | void | |
1206 | peer_xfer_config (struct peer *peer_dst, struct peer *peer_src) | |
1207 | { | |
3f9c7369 | 1208 | struct peer_af *paf; |
1ff9a340 DS |
1209 | afi_t afi; |
1210 | safi_t safi; | |
96885f16 | 1211 | int afidx; |
1ff9a340 DS |
1212 | |
1213 | assert(peer_src); | |
1214 | assert(peer_dst); | |
1215 | ||
1216 | /* The following function is used by both peer group config copy to | |
1217 | * individual peer and when we transfer config | |
1218 | */ | |
1219 | if (peer_src->change_local_as) | |
1220 | peer_dst->change_local_as = peer_src->change_local_as; | |
1221 | ||
1222 | /* peer flags apply */ | |
1223 | peer_dst->flags = peer_src->flags; | |
1224 | peer_dst->cap = peer_src->cap; | |
1225 | peer_dst->config = peer_src->config; | |
1226 | ||
1227 | peer_dst->local_as = peer_src->local_as; | |
1228 | peer_dst->ifindex = peer_src->ifindex; | |
1229 | peer_dst->port = peer_src->port; | |
1230 | peer_sort(peer_dst); | |
1231 | peer_dst->rmap_type = peer_src->rmap_type; | |
1232 | ||
1233 | /* Timers */ | |
1234 | peer_dst->holdtime = peer_src->holdtime; | |
1235 | peer_dst->keepalive = peer_src->keepalive; | |
1236 | peer_dst->connect = peer_src->connect; | |
1237 | peer_dst->v_holdtime = peer_src->v_holdtime; | |
1238 | peer_dst->v_keepalive = peer_src->v_keepalive; | |
1ff9a340 DS |
1239 | peer_dst->routeadv = peer_src->routeadv; |
1240 | peer_dst->v_routeadv = peer_src->v_routeadv; | |
1241 | ||
1242 | /* password apply */ | |
1243 | if (peer_src->password && !peer_dst->password) | |
1244 | peer_dst->password = XSTRDUP (MTYPE_PEER_PASSWORD, peer_src->password); | |
1245 | ||
1ff9a340 DS |
1246 | for (afi = AFI_IP; afi < AFI_MAX; afi++) |
1247 | for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++) | |
1248 | { | |
1249 | peer_dst->afc[afi][safi] = peer_src->afc[afi][safi]; | |
1250 | peer_dst->af_flags[afi][safi] = peer_src->af_flags[afi][safi]; | |
1251 | peer_dst->allowas_in[afi][safi] = peer_src->allowas_in[afi][safi]; | |
1252 | } | |
1253 | ||
96885f16 | 1254 | for (afidx = BGP_AF_START; afidx < BGP_AF_MAX; afidx++) |
1255 | { | |
1256 | paf = peer_src->peer_af_array[afidx]; | |
1257 | if (paf != NULL) | |
1258 | peer_af_create(peer_dst, paf->afi, paf->safi); | |
1259 | } | |
3f9c7369 | 1260 | |
1ff9a340 DS |
1261 | /* update-source apply */ |
1262 | if (peer_src->update_source) | |
1263 | { | |
1264 | if (peer_dst->update_source) | |
1265 | sockunion_free (peer_dst->update_source); | |
1266 | if (peer_dst->update_if) | |
1267 | { | |
1268 | XFREE (MTYPE_PEER_UPDATE_SOURCE, peer_dst->update_if); | |
1269 | peer_dst->update_if = NULL; | |
1270 | } | |
1271 | peer_dst->update_source = sockunion_dup (peer_src->update_source); | |
1272 | } | |
1273 | else if (peer_src->update_if) | |
1274 | { | |
1275 | if (peer_dst->update_if) | |
1276 | XFREE (MTYPE_PEER_UPDATE_SOURCE, peer_dst->update_if); | |
1277 | if (peer_dst->update_source) | |
1278 | { | |
1279 | sockunion_free (peer_dst->update_source); | |
1280 | peer_dst->update_source = NULL; | |
1281 | } | |
1282 | peer_dst->update_if = XSTRDUP (MTYPE_PEER_UPDATE_SOURCE, peer_src->update_if); | |
1283 | } | |
1284 | ||
1285 | if (peer_src->ifname) | |
1286 | { | |
1287 | if (peer_dst->ifname) | |
6e919709 | 1288 | XFREE(MTYPE_BGP_PEER_IFNAME, peer_dst->ifname); |
1ff9a340 | 1289 | |
6e919709 | 1290 | peer_dst->ifname = XSTRDUP(MTYPE_BGP_PEER_IFNAME, peer_src->ifname); |
1ff9a340 DS |
1291 | } |
1292 | } | |
1293 | ||
89ca90fa | 1294 | static int |
1295 | bgp_peer_conf_if_to_su_update_v4 (struct peer *peer, struct interface *ifp) | |
a80beece | 1296 | { |
8ffedcea DS |
1297 | struct connected *ifc; |
1298 | struct prefix p; | |
f43e655e | 1299 | u_int32_t addr; |
8ffedcea | 1300 | struct listnode *node; |
a80beece | 1301 | |
89ca90fa | 1302 | /* If our IPv4 address on the interface is /30 or /31, we can derive the |
1303 | * IPv4 address of the other end. | |
1304 | */ | |
1305 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, ifc)) | |
a80beece | 1306 | { |
89ca90fa | 1307 | if (ifc->address && (ifc->address->family == AF_INET)) |
1308 | { | |
1309 | PREFIX_COPY_IPV4(&p, CONNECTED_PREFIX(ifc)); | |
1310 | if (p.prefixlen == 30) | |
1311 | { | |
1312 | peer->su.sa.sa_family = AF_INET; | |
f43e655e RW |
1313 | addr = ntohl(p.u.prefix4.s_addr); |
1314 | if (addr % 4 == 1) | |
1315 | peer->su.sin.sin_addr.s_addr = htonl(addr+1); | |
1316 | else if (addr % 4 == 2) | |
1317 | peer->su.sin.sin_addr.s_addr = htonl(addr-1); | |
8ffedcea | 1318 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
8f500a1c | 1319 | peer->su.sin.sin_len = sizeof(struct sockaddr_in); |
8ffedcea | 1320 | #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */ |
89ca90fa | 1321 | return 1; |
1322 | } | |
1323 | else if (p.prefixlen == 31) | |
1324 | { | |
1325 | peer->su.sa.sa_family = AF_INET; | |
f43e655e RW |
1326 | addr = ntohl(p.u.prefix4.s_addr); |
1327 | if (addr % 2 == 0) | |
1328 | peer->su.sin.sin_addr.s_addr = htonl(addr+1); | |
89ca90fa | 1329 | else |
f43e655e | 1330 | peer->su.sin.sin_addr.s_addr = htonl(addr-1); |
8ffedcea | 1331 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
8f500a1c | 1332 | peer->su.sin.sin_len = sizeof(struct sockaddr_in); |
8ffedcea | 1333 | #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */ |
89ca90fa | 1334 | return 1; |
1335 | } | |
1336 | else | |
7709d56b DS |
1337 | if (bgp_debug_neighbor_events(peer)) |
1338 | zlog_debug("%s: IPv4 interface address is not /30 or /31, v4 session not started", | |
1339 | peer->conf_if); | |
89ca90fa | 1340 | } |
1341 | } | |
8ffedcea | 1342 | |
89ca90fa | 1343 | return 0; |
1344 | } | |
1345 | ||
1346 | static int | |
1347 | bgp_peer_conf_if_to_su_update_v6 (struct peer *peer, struct interface *ifp) | |
1348 | { | |
1349 | struct nbr_connected *ifc_nbr; | |
1350 | ||
1351 | /* Have we learnt the peer's IPv6 link-local address? */ | |
1352 | if (ifp->nbr_connected && | |
1353 | (ifc_nbr = listnode_head(ifp->nbr_connected))) | |
1354 | { | |
1355 | peer->su.sa.sa_family = AF_INET6; | |
1356 | memcpy(&peer->su.sin6.sin6_addr, &ifc_nbr->address->u.prefix, | |
1357 | sizeof (struct in6_addr)); | |
a80beece | 1358 | #ifdef SIN6_LEN |
89ca90fa | 1359 | peer->su.sin6.sin6_len = sizeof (struct sockaddr_in6); |
a80beece | 1360 | #endif |
89ca90fa | 1361 | peer->su.sin6.sin6_scope_id = ifp->ifindex; |
1362 | return 1; | |
1363 | } | |
8ffedcea | 1364 | |
89ca90fa | 1365 | return 0; |
1366 | } | |
1367 | ||
1368 | /* | |
1369 | * Set or reset the peer address socketunion structure based on the | |
1370 | * learnt/derived peer address. If the address has changed, update the | |
1371 | * password on the listen socket, if needed. | |
1372 | */ | |
1373 | void | |
1374 | bgp_peer_conf_if_to_su_update (struct peer *peer) | |
1375 | { | |
1376 | struct interface *ifp; | |
1377 | int prev_family; | |
1378 | int peer_addr_updated = 0; | |
1379 | ||
1380 | if (!peer->conf_if) | |
1381 | return; | |
1382 | ||
1383 | prev_family = peer->su.sa.sa_family; | |
8dee0396 | 1384 | if ((ifp = if_lookup_by_name_vrf (peer->conf_if, peer->bgp->vrf_id))) |
89ca90fa | 1385 | { |
4a04e5f7 | 1386 | peer->ifp = ifp; |
89ca90fa | 1387 | /* If BGP unnumbered is not "v6only", we first see if we can derive the |
1388 | * peer's IPv4 address. | |
1389 | */ | |
1390 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_IFPEER_V6ONLY)) | |
1391 | peer_addr_updated = bgp_peer_conf_if_to_su_update_v4 (peer, ifp); | |
1392 | ||
1393 | /* If "v6only" or we can't derive peer's IPv4 address, see if we've | |
1394 | * learnt the peer's IPv6 link-local address. This is from the source | |
1395 | * IPv6 address in router advertisement. | |
1396 | */ | |
1397 | if (!peer_addr_updated) | |
1398 | peer_addr_updated = bgp_peer_conf_if_to_su_update_v6 (peer, ifp); | |
1399 | } | |
1400 | /* If we could derive the peer address, we may need to install the password | |
1401 | * configured for the peer, if any, on the listen socket. Otherwise, mark | |
1402 | * that peer's address is not available and uninstall the password, if | |
1403 | * needed. | |
1404 | */ | |
1405 | if (peer_addr_updated) | |
1406 | { | |
1407 | if (peer->password && prev_family == AF_UNSPEC) | |
1408 | bgp_md5_set (peer); | |
1409 | } | |
1410 | else | |
1411 | { | |
1412 | if (peer->password && prev_family != AF_UNSPEC) | |
1413 | bgp_md5_unset (peer); | |
1414 | peer->su.sa.sa_family = AF_UNSPEC; | |
1415 | memset(&peer->su.sin6.sin6_addr, 0, sizeof (struct in6_addr)); | |
a80beece | 1416 | } |
dd793e4a DW |
1417 | |
1418 | /* Since our su changed we need to del/add peer to the peerhash */ | |
1419 | hash_release(peer->bgp->peerhash, peer); | |
1420 | hash_get(peer->bgp->peerhash, peer, hash_alloc_intern); | |
a80beece DS |
1421 | } |
1422 | ||
06370dac DW |
1423 | /* Force a bestpath recalculation for all prefixes. This is used |
1424 | * when 'bgp bestpath' commands are entered. | |
1425 | */ | |
1426 | void | |
1427 | bgp_recalculate_all_bestpaths (struct bgp *bgp) | |
1428 | { | |
1429 | afi_t afi; | |
1430 | safi_t safi; | |
1431 | struct bgp_node *rn; | |
1432 | ||
1433 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
1434 | { | |
1435 | for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++) | |
1436 | { | |
1437 | for (rn = bgp_table_top (bgp->rib[afi][safi]); rn; rn = bgp_route_next (rn)) | |
1438 | { | |
353cd37f DW |
1439 | if (rn->info != NULL) |
1440 | { | |
1441 | bgp_process (bgp, rn, afi, safi); | |
1442 | } | |
06370dac DW |
1443 | } |
1444 | } | |
1445 | } | |
1446 | } | |
1447 | ||
718e3744 | 1448 | /* Create new BGP peer. */ |
1ff9a340 | 1449 | struct peer * |
a80beece | 1450 | peer_create (union sockunion *su, const char *conf_if, struct bgp *bgp, |
f813b13b | 1451 | as_t local_as, as_t remote_as, int as_type, afi_t afi, safi_t safi, struct peer_group *group) |
718e3744 | 1452 | { |
1453 | int active; | |
1454 | struct peer *peer; | |
1455 | char buf[SU_ADDRSTRLEN]; | |
1456 | ||
6f58544d | 1457 | peer = peer_new (bgp); |
a80beece DS |
1458 | if (conf_if) |
1459 | { | |
1460 | peer->conf_if = XSTRDUP (MTYPE_PEER_CONF_IF, conf_if); | |
ff7c8333 | 1461 | bgp_peer_conf_if_to_su_update(peer); |
6e919709 DS |
1462 | if (peer->host) |
1463 | XFREE(MTYPE_BGP_PEER_HOST, peer->host); | |
a80beece DS |
1464 | peer->host = XSTRDUP (MTYPE_BGP_PEER_HOST, conf_if); |
1465 | } | |
1466 | else if (su) | |
1467 | { | |
1468 | peer->su = *su; | |
1469 | sockunion2str (su, buf, SU_ADDRSTRLEN); | |
6e919709 DS |
1470 | if (peer->host) |
1471 | XFREE(MTYPE_BGP_PEER_HOST, peer->host); | |
a80beece DS |
1472 | peer->host = XSTRDUP (MTYPE_BGP_PEER_HOST, buf); |
1473 | } | |
718e3744 | 1474 | peer->local_as = local_as; |
1475 | peer->as = remote_as; | |
0299c004 | 1476 | peer->as_type = as_type; |
718e3744 | 1477 | peer->local_id = bgp->router_id; |
1478 | peer->v_holdtime = bgp->default_holdtime; | |
1479 | peer->v_keepalive = bgp->default_keepalive; | |
1480 | if (peer_sort (peer) == BGP_PEER_IBGP) | |
1481 | peer->v_routeadv = BGP_DEFAULT_IBGP_ROUTEADV; | |
1482 | else | |
1483 | peer->v_routeadv = BGP_DEFAULT_EBGP_ROUTEADV; | |
28066f4b | 1484 | |
200df115 | 1485 | peer = peer_lock (peer); /* bgp peer list reference */ |
f813b13b | 1486 | peer->group = group; |
718e3744 | 1487 | listnode_add_sort (bgp->peer, peer); |
dd793e4a | 1488 | hash_get(bgp->peerhash, peer, hash_alloc_intern); |
718e3744 | 1489 | |
1490 | active = peer_active (peer); | |
1491 | ||
65957886 SH |
1492 | /* Last read and reset time set */ |
1493 | peer->readtime = peer->resettime = bgp_clock (); | |
848973c7 | 1494 | |
718e3744 | 1495 | /* Default TTL set. */ |
9b1be336 | 1496 | peer->ttl = (peer->sort == BGP_PEER_IBGP) ? MAXTTL : 1; |
718e3744 | 1497 | |
1ff9a340 DS |
1498 | SET_FLAG (peer->flags, PEER_FLAG_CONFIG_NODE); |
1499 | ||
3f9c7369 DS |
1500 | if (afi && safi) |
1501 | { | |
1502 | peer->afc[afi][safi] = 1; | |
c8560b44 | 1503 | peer_af_create(peer, afi, safi); |
3f9c7369 DS |
1504 | } |
1505 | ||
718e3744 | 1506 | /* Set up peer's events and timers. */ |
1507 | if (! active && peer_active (peer)) | |
1508 | bgp_timer_set (peer); | |
1509 | ||
1510 | return peer; | |
1511 | } | |
1512 | ||
dd793e4a | 1513 | /* Make accept BGP peer. This function is only called from the test code */ |
eb821189 | 1514 | struct peer * |
1515 | peer_create_accept (struct bgp *bgp) | |
1516 | { | |
1517 | struct peer *peer; | |
1518 | ||
6f58544d | 1519 | peer = peer_new (bgp); |
1ff9a340 | 1520 | |
200df115 | 1521 | peer = peer_lock (peer); /* bgp peer list reference */ |
eb821189 | 1522 | listnode_add_sort (bgp->peer, peer); |
1523 | ||
1524 | return peer; | |
1525 | } | |
1526 | ||
718e3744 | 1527 | /* Change peer's AS number. */ |
a80beece | 1528 | void |
0299c004 | 1529 | peer_as_change (struct peer *peer, as_t as, int as_specified) |
718e3744 | 1530 | { |
6d85b15b | 1531 | bgp_peer_sort_t type; |
966f821c | 1532 | struct peer *conf; |
718e3744 | 1533 | |
1534 | /* Stop peer. */ | |
1535 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) | |
1536 | { | |
6aa136f1 | 1537 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
e0701b79 | 1538 | { |
1539 | peer->last_reset = PEER_DOWN_REMOTE_AS_CHANGE; | |
1540 | bgp_notify_send (peer, BGP_NOTIFY_CEASE, | |
1541 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
1542 | } | |
718e3744 | 1543 | else |
1ff9a340 | 1544 | bgp_session_reset(peer); |
718e3744 | 1545 | } |
1546 | type = peer_sort (peer); | |
1547 | peer->as = as; | |
0299c004 | 1548 | peer->as_type = as_specified; |
718e3744 | 1549 | |
848973c7 | 1550 | if (bgp_config_check (peer->bgp, BGP_CONFIG_CONFEDERATION) |
1551 | && ! bgp_confederation_peers_check (peer->bgp, as) | |
1552 | && peer->bgp->as != as) | |
1553 | peer->local_as = peer->bgp->confed_id; | |
1554 | else | |
1555 | peer->local_as = peer->bgp->as; | |
1556 | ||
718e3744 | 1557 | /* Advertisement-interval reset */ |
966f821c DS |
1558 | conf = NULL; |
1559 | if (peer->group) | |
1560 | conf = peer->group->conf; | |
1561 | ||
1562 | if (conf && CHECK_FLAG (conf->config, PEER_CONFIG_ROUTEADV)) | |
ffd0c037 | 1563 | { |
966f821c | 1564 | peer->v_routeadv = conf->routeadv; |
ffd0c037 | 1565 | } |
d973c4f0 DS |
1566 | /* Only go back to the default advertisement-interval if the user had not |
1567 | * already configured it */ | |
1568 | else if (!CHECK_FLAG (peer->config, PEER_CONFIG_ROUTEADV)) | |
ffd0c037 DS |
1569 | { |
1570 | if (peer_sort (peer) == BGP_PEER_IBGP) | |
1571 | peer->v_routeadv = BGP_DEFAULT_IBGP_ROUTEADV; | |
1572 | else | |
1573 | peer->v_routeadv = BGP_DEFAULT_EBGP_ROUTEADV; | |
1574 | } | |
718e3744 | 1575 | /* TTL reset */ |
1576 | if (peer_sort (peer) == BGP_PEER_IBGP) | |
9b1be336 | 1577 | peer->ttl = MAXTTL; |
718e3744 | 1578 | else if (type == BGP_PEER_IBGP) |
1579 | peer->ttl = 1; | |
1580 | ||
1581 | /* reflector-client reset */ | |
1582 | if (peer_sort (peer) != BGP_PEER_IBGP) | |
1583 | { | |
1584 | UNSET_FLAG (peer->af_flags[AFI_IP][SAFI_UNICAST], | |
1585 | PEER_FLAG_REFLECTOR_CLIENT); | |
1586 | UNSET_FLAG (peer->af_flags[AFI_IP][SAFI_MULTICAST], | |
1587 | PEER_FLAG_REFLECTOR_CLIENT); | |
1588 | UNSET_FLAG (peer->af_flags[AFI_IP][SAFI_MPLS_VPN], | |
1589 | PEER_FLAG_REFLECTOR_CLIENT); | |
587ff0fd LB |
1590 | UNSET_FLAG (peer->af_flags[AFI_IP][SAFI_ENCAP], |
1591 | PEER_FLAG_REFLECTOR_CLIENT); | |
718e3744 | 1592 | UNSET_FLAG (peer->af_flags[AFI_IP6][SAFI_UNICAST], |
1593 | PEER_FLAG_REFLECTOR_CLIENT); | |
1594 | UNSET_FLAG (peer->af_flags[AFI_IP6][SAFI_MULTICAST], | |
1595 | PEER_FLAG_REFLECTOR_CLIENT); | |
945c8fe9 LB |
1596 | UNSET_FLAG (peer->af_flags[AFI_IP6][SAFI_MPLS_VPN], |
1597 | PEER_FLAG_REFLECTOR_CLIENT); | |
587ff0fd LB |
1598 | UNSET_FLAG (peer->af_flags[AFI_IP6][SAFI_ENCAP], |
1599 | PEER_FLAG_REFLECTOR_CLIENT); | |
718e3744 | 1600 | } |
1601 | ||
1602 | /* local-as reset */ | |
1603 | if (peer_sort (peer) != BGP_PEER_EBGP) | |
1604 | { | |
1605 | peer->change_local_as = 0; | |
1606 | UNSET_FLAG (peer->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
9d3f9705 | 1607 | UNSET_FLAG (peer->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS); |
718e3744 | 1608 | } |
1609 | } | |
1610 | ||
1611 | /* If peer does not exist, create new one. If peer already exists, | |
1612 | set AS number to the peer. */ | |
1613 | int | |
0299c004 DS |
1614 | peer_remote_as (struct bgp *bgp, union sockunion *su, const char *conf_if, |
1615 | as_t *as, int as_type, afi_t afi, safi_t safi) | |
718e3744 | 1616 | { |
1617 | struct peer *peer; | |
1618 | as_t local_as; | |
1619 | ||
a80beece DS |
1620 | if (conf_if) |
1621 | peer = peer_lookup_by_conf_if (bgp, conf_if); | |
1622 | else | |
1623 | peer = peer_lookup (bgp, su); | |
718e3744 | 1624 | |
1625 | if (peer) | |
1626 | { | |
f14e6fdb DS |
1627 | /* Not allowed for a dynamic peer. */ |
1628 | if (peer_dynamic_neighbor (peer)) | |
1629 | { | |
1630 | *as = peer->as; | |
1631 | return BGP_ERR_INVALID_FOR_DYNAMIC_PEER; | |
1632 | } | |
1633 | ||
718e3744 | 1634 | /* When this peer is a member of peer-group. */ |
1635 | if (peer->group) | |
1636 | { | |
1637 | if (peer->group->conf->as) | |
1638 | { | |
1639 | /* Return peer group's AS number. */ | |
1640 | *as = peer->group->conf->as; | |
1641 | return BGP_ERR_PEER_GROUP_MEMBER; | |
1642 | } | |
1643 | if (peer_sort (peer->group->conf) == BGP_PEER_IBGP) | |
1644 | { | |
0299c004 | 1645 | if ((as_type != AS_INTERNAL) && (bgp->as != *as)) |
718e3744 | 1646 | { |
1647 | *as = peer->as; | |
1648 | return BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT; | |
1649 | } | |
1650 | } | |
1651 | else | |
1652 | { | |
0299c004 | 1653 | if ((as_type != AS_EXTERNAL) && (bgp->as == *as)) |
718e3744 | 1654 | { |
1655 | *as = peer->as; | |
1656 | return BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT; | |
1657 | } | |
1658 | } | |
1659 | } | |
1660 | ||
1661 | /* Existing peer's AS number change. */ | |
9da3a1a1 DS |
1662 | if (((peer->as_type == AS_SPECIFIED) && peer->as != *as) || |
1663 | (peer->as_type != as_type)) | |
0299c004 | 1664 | peer_as_change (peer, *as, as_type); |
718e3744 | 1665 | } |
1666 | else | |
1667 | { | |
a80beece DS |
1668 | if (conf_if) |
1669 | return BGP_ERR_NO_INTERFACE_CONFIG; | |
718e3744 | 1670 | |
1671 | /* If the peer is not part of our confederation, and its not an | |
1672 | iBGP peer then spoof the source AS */ | |
1673 | if (bgp_config_check (bgp, BGP_CONFIG_CONFEDERATION) | |
1674 | && ! bgp_confederation_peers_check (bgp, *as) | |
1675 | && bgp->as != *as) | |
1676 | local_as = bgp->confed_id; | |
1677 | else | |
1678 | local_as = bgp->as; | |
1679 | ||
1680 | /* If this is IPv4 unicast configuration and "no bgp default | |
1681 | ipv4-unicast" is specified. */ | |
1682 | ||
1683 | if (bgp_flag_check (bgp, BGP_FLAG_NO_DEFAULT_IPV4) | |
1684 | && afi == AFI_IP && safi == SAFI_UNICAST) | |
4799375a | 1685 | peer_create (su, conf_if, bgp, local_as, *as, as_type, 0, 0, NULL); |
718e3744 | 1686 | else |
4799375a | 1687 | peer_create (su, conf_if, bgp, local_as, *as, as_type, afi, safi, NULL); |
718e3744 | 1688 | } |
1689 | ||
1690 | return 0; | |
1691 | } | |
1692 | ||
c8560b44 DW |
1693 | static int |
1694 | non_peergroup_activate_af (struct peer *peer, afi_t afi, safi_t safi) | |
718e3744 | 1695 | { |
1696 | int active; | |
1697 | ||
718e3744 | 1698 | if (CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) |
718e3744 | 1699 | { |
c8560b44 DW |
1700 | zlog_err("%s was called for peer-group %s", __func__, peer->host); |
1701 | return 1; | |
1702 | } | |
718e3744 | 1703 | |
c8560b44 DW |
1704 | /* Nothing to do if we've already activated this peer */ |
1705 | if (peer->afc[afi][safi]) | |
1706 | return 0; | |
718e3744 | 1707 | |
c8560b44 DW |
1708 | if (peer_af_create(peer, afi, safi) == NULL) |
1709 | return 1; | |
3f9c7369 | 1710 | |
c8560b44 DW |
1711 | active = peer_active (peer); |
1712 | peer->afc[afi][safi] = 1; | |
1713 | ||
1714 | if (!active && peer_active (peer)) | |
1715 | { | |
1716 | bgp_timer_set (peer); | |
718e3744 | 1717 | } |
c8560b44 DW |
1718 | else |
1719 | { | |
1720 | if (peer->status == Established) | |
1721 | { | |
1722 | if (CHECK_FLAG (peer->cap, PEER_CAP_DYNAMIC_RCV)) | |
1723 | { | |
1724 | peer->afc_adv[afi][safi] = 1; | |
1725 | bgp_capability_send (peer, afi, safi, | |
1726 | CAPABILITY_CODE_MP, | |
1727 | CAPABILITY_ACTION_SET); | |
1728 | if (peer->afc_recv[afi][safi]) | |
1729 | { | |
1730 | peer->afc_nego[afi][safi] = 1; | |
1731 | bgp_announce_route (peer, afi, safi); | |
1732 | } | |
1733 | } | |
1734 | else | |
1735 | { | |
1736 | peer->last_reset = PEER_DOWN_AF_ACTIVATE; | |
1737 | bgp_notify_send (peer, BGP_NOTIFY_CEASE, | |
1738 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
1739 | } | |
1740 | } | |
1741 | } | |
1742 | ||
1743 | return 0; | |
718e3744 | 1744 | } |
1745 | ||
c8560b44 | 1746 | /* Activate the peer or peer group for specified AFI and SAFI. */ |
718e3744 | 1747 | int |
c8560b44 | 1748 | peer_activate (struct peer *peer, afi_t afi, safi_t safi) |
718e3744 | 1749 | { |
c8560b44 | 1750 | int ret = 0; |
718e3744 | 1751 | struct peer_group *group; |
1eb8ef25 | 1752 | struct listnode *node, *nnode; |
c8560b44 | 1753 | struct peer *tmp_peer; |
718e3744 | 1754 | |
c8560b44 DW |
1755 | /* Nothing to do if we've already activated this peer */ |
1756 | if (peer->afc[afi][safi]) | |
1757 | return ret; | |
1758 | ||
1759 | /* This is a peer-group so activate all of the members of the | |
1760 | * peer-group as well */ | |
718e3744 | 1761 | if (CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) |
1762 | { | |
c8560b44 | 1763 | peer->afc[afi][safi] = 1; |
718e3744 | 1764 | group = peer->group; |
1765 | ||
c8560b44 DW |
1766 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, tmp_peer)) |
1767 | { | |
1768 | ret |= non_peergroup_activate_af (tmp_peer, afi, safi); | |
1769 | } | |
718e3744 | 1770 | } |
1771 | else | |
1772 | { | |
c8560b44 DW |
1773 | ret |= non_peergroup_activate_af (peer, afi, safi); |
1774 | } | |
1775 | ||
1776 | return ret; | |
1777 | } | |
1778 | ||
1779 | static int | |
1780 | non_peergroup_deactivate_af (struct peer *peer, afi_t afi, safi_t safi) | |
1781 | { | |
1782 | if (CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) | |
1783 | { | |
1784 | zlog_err("%s was called for peer-group %s", __func__, peer->host); | |
1785 | return 1; | |
718e3744 | 1786 | } |
1787 | ||
c8560b44 | 1788 | /* Nothing to do if we've already deactivated this peer */ |
718e3744 | 1789 | if (! peer->afc[afi][safi]) |
1790 | return 0; | |
1791 | ||
1792 | /* De-activate the address family configuration. */ | |
1793 | peer->afc[afi][safi] = 0; | |
400b1fad | 1794 | |
3f9c7369 DS |
1795 | if (peer_af_delete(peer, afi, safi) != 0) |
1796 | { | |
1797 | zlog_err("couldn't delete af structure for peer %s", peer->host); | |
c8560b44 | 1798 | return 1; |
3f9c7369 | 1799 | } |
718e3744 | 1800 | |
c8560b44 DW |
1801 | if (peer->status == Established) |
1802 | { | |
1803 | if (CHECK_FLAG (peer->cap, PEER_CAP_DYNAMIC_RCV)) | |
1804 | { | |
1805 | peer->afc_adv[afi][safi] = 0; | |
1806 | peer->afc_nego[afi][safi] = 0; | |
718e3744 | 1807 | |
c8560b44 DW |
1808 | if (peer_active_nego (peer)) |
1809 | { | |
1810 | bgp_capability_send (peer, afi, safi, | |
1811 | CAPABILITY_CODE_MP, | |
1812 | CAPABILITY_ACTION_UNSET); | |
1813 | bgp_clear_route (peer, afi, safi); | |
1814 | peer->pcount[afi][safi] = 0; | |
1815 | } | |
1816 | else | |
e0701b79 | 1817 | { |
1818 | peer->last_reset = PEER_DOWN_NEIGHBOR_DELETE; | |
1819 | bgp_notify_send (peer, BGP_NOTIFY_CEASE, | |
1820 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
1821 | } | |
c8560b44 DW |
1822 | } |
1823 | else | |
1824 | { | |
1825 | peer->last_reset = PEER_DOWN_NEIGHBOR_DELETE; | |
1826 | bgp_notify_send (peer, BGP_NOTIFY_CEASE, | |
1827 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
1828 | } | |
718e3744 | 1829 | } |
c8560b44 | 1830 | |
718e3744 | 1831 | return 0; |
1832 | } | |
1833 | ||
c8560b44 DW |
1834 | int |
1835 | peer_deactivate (struct peer *peer, afi_t afi, safi_t safi) | |
1836 | { | |
1837 | int ret = 0; | |
1838 | struct peer_group *group; | |
1839 | struct peer *tmp_peer; | |
1840 | struct listnode *node, *nnode; | |
1841 | ||
1842 | /* Nothing to do if we've already de-activated this peer */ | |
1843 | if (! peer->afc[afi][safi]) | |
1844 | return ret; | |
1845 | ||
1846 | /* This is a peer-group so de-activate all of the members of the | |
1847 | * peer-group as well */ | |
1848 | if (CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) | |
1849 | { | |
1850 | peer->afc[afi][safi] = 0; | |
1851 | group = peer->group; | |
1852 | ||
1853 | if (peer_af_delete(peer, afi, safi) != 0) | |
1854 | { | |
1855 | zlog_err("couldn't delete af structure for peer %s", peer->host); | |
1856 | } | |
1857 | ||
1858 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, tmp_peer)) | |
1859 | { | |
1860 | ret |= non_peergroup_deactivate_af (tmp_peer, afi, safi); | |
1861 | } | |
1862 | } | |
1863 | else | |
1864 | { | |
1865 | ret |= non_peergroup_deactivate_af (peer, afi, safi); | |
1866 | } | |
1867 | ||
1868 | return ret; | |
1869 | } | |
1870 | ||
4760600f DL |
1871 | int |
1872 | peer_afc_set (struct peer *peer, afi_t afi, safi_t safi, int enable) | |
1873 | { | |
1874 | if (enable) | |
1875 | return peer_activate (peer, afi, safi); | |
1876 | else | |
1877 | return peer_deactivate (peer, afi, safi); | |
1878 | } | |
1879 | ||
da88ea82 | 1880 | static void |
93406d87 | 1881 | peer_nsf_stop (struct peer *peer) |
1882 | { | |
1883 | afi_t afi; | |
1884 | safi_t safi; | |
1885 | ||
1886 | UNSET_FLAG (peer->sflags, PEER_STATUS_NSF_WAIT); | |
1887 | UNSET_FLAG (peer->sflags, PEER_STATUS_NSF_MODE); | |
1888 | ||
1889 | for (afi = AFI_IP ; afi < AFI_MAX ; afi++) | |
0a28130d | 1890 | for (safi = SAFI_UNICAST ; safi < SAFI_RESERVED_3 ; safi++) |
93406d87 | 1891 | peer->nsf[afi][safi] = 0; |
1892 | ||
1893 | if (peer->t_gr_restart) | |
1894 | { | |
1895 | BGP_TIMER_OFF (peer->t_gr_restart); | |
16286195 | 1896 | if (bgp_debug_neighbor_events(peer)) |
93406d87 | 1897 | zlog_debug ("%s graceful restart timer stopped", peer->host); |
1898 | } | |
1899 | if (peer->t_gr_stale) | |
1900 | { | |
1901 | BGP_TIMER_OFF (peer->t_gr_stale); | |
16286195 | 1902 | if (bgp_debug_neighbor_events(peer)) |
93406d87 | 1903 | zlog_debug ("%s graceful restart stalepath timer stopped", peer->host); |
1904 | } | |
1905 | bgp_clear_route_all (peer); | |
1906 | } | |
1907 | ||
ca058a30 PJ |
1908 | /* Delete peer from confguration. |
1909 | * | |
1910 | * The peer is moved to a dead-end "Deleted" neighbour-state, to allow | |
1911 | * it to "cool off" and refcounts to hit 0, at which state it is freed. | |
1912 | * | |
1913 | * This function /should/ take care to be idempotent, to guard against | |
1914 | * it being called multiple times through stray events that come in | |
1915 | * that happen to result in this function being called again. That | |
1916 | * said, getting here for a "Deleted" peer is a bug in the neighbour | |
1917 | * FSM. | |
1918 | */ | |
718e3744 | 1919 | int |
1920 | peer_delete (struct peer *peer) | |
1921 | { | |
1922 | int i; | |
1923 | afi_t afi; | |
1924 | safi_t safi; | |
1925 | struct bgp *bgp; | |
1926 | struct bgp_filter *filter; | |
228da428 | 1927 | struct listnode *pn; |
019cbf70 | 1928 | int accept_peer; |
718e3744 | 1929 | |
ca058a30 | 1930 | assert (peer->status != Deleted); |
1ff9a340 | 1931 | |
718e3744 | 1932 | bgp = peer->bgp; |
019cbf70 | 1933 | accept_peer = CHECK_FLAG (peer->sflags, PEER_STATUS_ACCEPT_PEER); |
718e3744 | 1934 | |
93406d87 | 1935 | if (CHECK_FLAG (peer->sflags, PEER_STATUS_NSF_WAIT)) |
1936 | peer_nsf_stop (peer); | |
1937 | ||
1ff9a340 DS |
1938 | SET_FLAG(peer->flags, PEER_FLAG_DELETE); |
1939 | ||
228da428 | 1940 | /* If this peer belongs to peer group, clear up the |
718e3744 | 1941 | relationship. */ |
1942 | if (peer->group) | |
1943 | { | |
f14e6fdb DS |
1944 | if (peer_dynamic_neighbor(peer)) |
1945 | peer_drop_dynamic_neighbor(peer); | |
1946 | ||
ca058a30 PJ |
1947 | if ((pn = listnode_lookup (peer->group->peer, peer))) |
1948 | { | |
1949 | peer = peer_unlock (peer); /* group->peer list reference */ | |
1950 | list_delete_node (peer->group->peer, pn); | |
1951 | } | |
718e3744 | 1952 | peer->group = NULL; |
1953 | } | |
200df115 | 1954 | |
718e3744 | 1955 | /* Withdraw all information from routing table. We can not use |
200df115 | 1956 | * BGP_EVENT_ADD (peer, BGP_Stop) at here. Because the event is |
1957 | * executed after peer structure is deleted. | |
1958 | */ | |
e0701b79 | 1959 | peer->last_reset = PEER_DOWN_NEIGHBOR_DELETE; |
718e3744 | 1960 | bgp_stop (peer); |
1ff9a340 DS |
1961 | UNSET_FLAG(peer->flags, PEER_FLAG_DELETE); |
1962 | ||
1963 | if (peer->doppelganger) | |
9e08021c DW |
1964 | { |
1965 | peer->doppelganger->doppelganger = NULL; | |
1966 | peer->doppelganger = NULL; | |
1967 | } | |
1ff9a340 DS |
1968 | |
1969 | UNSET_FLAG(peer->sflags, PEER_STATUS_ACCEPT_PEER); | |
ca058a30 | 1970 | bgp_fsm_change_status (peer, Deleted); |
0df7c91f PJ |
1971 | |
1972 | /* Password configuration */ | |
1973 | if (peer->password) | |
1974 | { | |
1975 | XFREE (MTYPE_PEER_PASSWORD, peer->password); | |
1976 | peer->password = NULL; | |
1977 | ||
019cbf70 | 1978 | if (!accept_peer && |
89ca90fa | 1979 | ! BGP_PEER_SU_UNSPEC(peer) && |
019cbf70 | 1980 | ! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) |
89ca90fa | 1981 | bgp_md5_unset (peer); |
0df7c91f PJ |
1982 | } |
1983 | ||
ca058a30 | 1984 | bgp_timer_set (peer); /* stops all timers for Deleted */ |
1ff9a340 | 1985 | |
718e3744 | 1986 | /* Delete from all peer list. */ |
228da428 CC |
1987 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP) |
1988 | && (pn = listnode_lookup (bgp->peer, peer))) | |
fee0f4c6 | 1989 | { |
228da428 CC |
1990 | peer_unlock (peer); /* bgp peer list reference */ |
1991 | list_delete_node (bgp->peer, pn); | |
dd793e4a | 1992 | hash_release(bgp->peerhash, peer); |
228da428 | 1993 | } |
200df115 | 1994 | |
200df115 | 1995 | /* Buffers. */ |
718e3744 | 1996 | if (peer->ibuf) |
9e08021c DW |
1997 | { |
1998 | stream_free (peer->ibuf); | |
1999 | peer->ibuf = NULL; | |
2000 | } | |
2001 | ||
718e3744 | 2002 | if (peer->obuf) |
9e08021c DW |
2003 | { |
2004 | stream_fifo_free (peer->obuf); | |
2005 | peer->obuf = NULL; | |
2006 | } | |
2007 | ||
718e3744 | 2008 | if (peer->work) |
9e08021c DW |
2009 | { |
2010 | stream_free (peer->work); | |
2011 | peer->work = NULL; | |
2012 | } | |
2013 | ||
8c71e481 | 2014 | if (peer->scratch) |
9e08021c DW |
2015 | { |
2016 | stream_free(peer->scratch); | |
2017 | peer->scratch = NULL; | |
2018 | } | |
18937400 | 2019 | |
718e3744 | 2020 | /* Local and remote addresses. */ |
2021 | if (peer->su_local) | |
9e08021c DW |
2022 | { |
2023 | sockunion_free (peer->su_local); | |
2024 | peer->su_local = NULL; | |
2025 | } | |
2026 | ||
718e3744 | 2027 | if (peer->su_remote) |
9e08021c DW |
2028 | { |
2029 | sockunion_free (peer->su_remote); | |
2030 | peer->su_remote = NULL; | |
2031 | } | |
200df115 | 2032 | |
718e3744 | 2033 | /* Free filter related memory. */ |
2034 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
2035 | for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++) | |
2036 | { | |
2037 | filter = &peer->filter[afi][safi]; | |
2038 | ||
2039 | for (i = FILTER_IN; i < FILTER_MAX; i++) | |
2040 | { | |
2041 | if (filter->dlist[i].name) | |
9e08021c DW |
2042 | { |
2043 | XFREE(MTYPE_BGP_FILTER_NAME, filter->dlist[i].name); | |
2044 | filter->dlist[i].name = NULL; | |
2045 | } | |
2046 | ||
718e3744 | 2047 | if (filter->plist[i].name) |
9e08021c DW |
2048 | { |
2049 | XFREE(MTYPE_BGP_FILTER_NAME, filter->plist[i].name); | |
2050 | filter->plist[i].name = NULL; | |
2051 | } | |
2052 | ||
718e3744 | 2053 | if (filter->aslist[i].name) |
9e08021c DW |
2054 | { |
2055 | XFREE(MTYPE_BGP_FILTER_NAME, filter->aslist[i].name); | |
2056 | filter->aslist[i].name = NULL; | |
2057 | } | |
200df115 | 2058 | } |
9e08021c | 2059 | |
200df115 | 2060 | for (i = RMAP_IN; i < RMAP_MAX; i++) |
2061 | { | |
718e3744 | 2062 | if (filter->map[i].name) |
9e08021c DW |
2063 | { |
2064 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[i].name); | |
2065 | filter->map[i].name = NULL; | |
2066 | } | |
718e3744 | 2067 | } |
2068 | ||
2069 | if (filter->usmap.name) | |
9e08021c DW |
2070 | { |
2071 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
2072 | filter->usmap.name = NULL; | |
2073 | } | |
718e3744 | 2074 | |
2075 | if (peer->default_rmap[afi][safi].name) | |
9e08021c DW |
2076 | { |
2077 | XFREE(MTYPE_ROUTE_MAP_NAME, peer->default_rmap[afi][safi].name); | |
2078 | peer->default_rmap[afi][safi].name = NULL; | |
2079 | } | |
718e3744 | 2080 | } |
3f9c7369 DS |
2081 | |
2082 | FOREACH_AFI_SAFI (afi, safi) | |
2083 | peer_af_delete (peer, afi, safi); | |
04b6bdc0 DW |
2084 | |
2085 | if (peer->hostname) | |
9e08021c | 2086 | { |
4a1ab8e4 | 2087 | XFREE(MTYPE_BGP_PEER_HOST, peer->hostname); |
9e08021c DW |
2088 | peer->hostname = NULL; |
2089 | } | |
2090 | ||
04b6bdc0 | 2091 | if (peer->domainname) |
9e08021c | 2092 | { |
4a1ab8e4 | 2093 | XFREE(MTYPE_BGP_PEER_HOST, peer->domainname); |
9e08021c DW |
2094 | peer->domainname = NULL; |
2095 | } | |
bb86c601 | 2096 | |
200df115 | 2097 | peer_unlock (peer); /* initial reference */ |
718e3744 | 2098 | |
2099 | return 0; | |
2100 | } | |
6b0655a2 | 2101 | |
94f2b392 | 2102 | static int |
718e3744 | 2103 | peer_group_cmp (struct peer_group *g1, struct peer_group *g2) |
2104 | { | |
2105 | return strcmp (g1->name, g2->name); | |
2106 | } | |
2107 | ||
718e3744 | 2108 | /* Peer group cofiguration. */ |
2109 | static struct peer_group * | |
66e5cd87 | 2110 | peer_group_new (void) |
718e3744 | 2111 | { |
4a1ab8e4 | 2112 | return (struct peer_group *) XCALLOC (MTYPE_PEER_GROUP, |
718e3744 | 2113 | sizeof (struct peer_group)); |
2114 | } | |
2115 | ||
94f2b392 | 2116 | static void |
718e3744 | 2117 | peer_group_free (struct peer_group *group) |
2118 | { | |
4a1ab8e4 | 2119 | XFREE (MTYPE_PEER_GROUP, group); |
718e3744 | 2120 | } |
2121 | ||
2122 | struct peer_group * | |
fd79ac91 | 2123 | peer_group_lookup (struct bgp *bgp, const char *name) |
718e3744 | 2124 | { |
2125 | struct peer_group *group; | |
1eb8ef25 | 2126 | struct listnode *node, *nnode; |
718e3744 | 2127 | |
1eb8ef25 | 2128 | for (ALL_LIST_ELEMENTS (bgp->group, node, nnode, group)) |
718e3744 | 2129 | { |
2130 | if (strcmp (group->name, name) == 0) | |
2131 | return group; | |
2132 | } | |
2133 | return NULL; | |
2134 | } | |
2135 | ||
2136 | struct peer_group * | |
fd79ac91 | 2137 | peer_group_get (struct bgp *bgp, const char *name) |
718e3744 | 2138 | { |
2139 | struct peer_group *group; | |
f14e6fdb | 2140 | afi_t afi; |
718e3744 | 2141 | |
2142 | group = peer_group_lookup (bgp, name); | |
2143 | if (group) | |
2144 | return group; | |
2145 | ||
2146 | group = peer_group_new (); | |
2147 | group->bgp = bgp; | |
6e919709 | 2148 | if (group->name) |
4a1ab8e4 DL |
2149 | XFREE(MTYPE_PEER_GROUP_HOST, group->name); |
2150 | group->name = XSTRDUP(MTYPE_PEER_GROUP_HOST, name); | |
718e3744 | 2151 | group->peer = list_new (); |
f14e6fdb DS |
2152 | for (afi = AFI_IP; afi < AFI_MAX; afi++) |
2153 | group->listen_range[afi] = list_new (); | |
6f58544d | 2154 | group->conf = peer_new (bgp); |
718e3744 | 2155 | if (! bgp_flag_check (bgp, BGP_FLAG_NO_DEFAULT_IPV4)) |
2156 | group->conf->afc[AFI_IP][SAFI_UNICAST] = 1; | |
6e919709 DS |
2157 | if (group->conf->host) |
2158 | XFREE(MTYPE_BGP_PEER_HOST, group->conf->host); | |
228da428 | 2159 | group->conf->host = XSTRDUP (MTYPE_BGP_PEER_HOST, name); |
718e3744 | 2160 | group->conf->group = group; |
2161 | group->conf->as = 0; | |
2162 | group->conf->ttl = 1; | |
fa411a21 | 2163 | group->conf->gtsm_hops = 0; |
718e3744 | 2164 | group->conf->v_routeadv = BGP_DEFAULT_EBGP_ROUTEADV; |
2165 | UNSET_FLAG (group->conf->config, PEER_CONFIG_TIMER); | |
2166 | UNSET_FLAG (group->conf->config, PEER_CONFIG_CONNECT); | |
2167 | group->conf->keepalive = 0; | |
2168 | group->conf->holdtime = 0; | |
2169 | group->conf->connect = 0; | |
2170 | SET_FLAG (group->conf->sflags, PEER_STATUS_GROUP); | |
2171 | listnode_add_sort (bgp->group, group); | |
2172 | ||
2173 | return 0; | |
2174 | } | |
2175 | ||
94f2b392 | 2176 | static void |
a4ed4829 | 2177 | peer_group2peer_config_copy (struct peer_group *group, struct peer *peer) |
718e3744 | 2178 | { |
718e3744 | 2179 | struct peer *conf; |
8ffedcea | 2180 | int v6only; |
718e3744 | 2181 | |
2182 | conf = group->conf; | |
718e3744 | 2183 | |
2184 | /* remote-as */ | |
2185 | if (conf->as) | |
2186 | peer->as = conf->as; | |
2187 | ||
2188 | /* remote-as */ | |
2189 | if (conf->change_local_as) | |
2190 | peer->change_local_as = conf->change_local_as; | |
2191 | ||
2192 | /* TTL */ | |
2193 | peer->ttl = conf->ttl; | |
2194 | ||
fa411a21 NH |
2195 | /* GTSM hops */ |
2196 | peer->gtsm_hops = conf->gtsm_hops; | |
2197 | ||
718e3744 | 2198 | /* Weight */ |
2199 | peer->weight = conf->weight; | |
2200 | ||
8ffedcea DS |
2201 | /* this flag is per-neighbor and so has to be preserved */ |
2202 | v6only = CHECK_FLAG(peer->flags, PEER_FLAG_IFPEER_V6ONLY); | |
2203 | ||
718e3744 | 2204 | /* peer flags apply */ |
2205 | peer->flags = conf->flags; | |
8ffedcea DS |
2206 | |
2207 | if (v6only) | |
2208 | SET_FLAG(peer->flags, PEER_FLAG_IFPEER_V6ONLY); | |
2209 | ||
718e3744 | 2210 | /* peer config apply */ |
2211 | peer->config = conf->config; | |
2212 | ||
2213 | /* peer timers apply */ | |
2214 | peer->holdtime = conf->holdtime; | |
2215 | peer->keepalive = conf->keepalive; | |
2216 | peer->connect = conf->connect; | |
2217 | if (CHECK_FLAG (conf->config, PEER_CONFIG_CONNECT)) | |
2218 | peer->v_connect = conf->connect; | |
2219 | else | |
2220 | peer->v_connect = BGP_DEFAULT_CONNECT_RETRY; | |
2221 | ||
2222 | /* advertisement-interval reset */ | |
966f821c DS |
2223 | if (CHECK_FLAG (conf->config, PEER_CONFIG_ROUTEADV)) |
2224 | peer->v_routeadv = conf->routeadv; | |
718e3744 | 2225 | else |
966f821c DS |
2226 | if (peer_sort (peer) == BGP_PEER_IBGP) |
2227 | peer->v_routeadv = BGP_DEFAULT_IBGP_ROUTEADV; | |
2228 | else | |
2229 | peer->v_routeadv = BGP_DEFAULT_EBGP_ROUTEADV; | |
718e3744 | 2230 | |
0df7c91f | 2231 | /* password apply */ |
0e4303d3 | 2232 | if (conf->password && !peer->password) |
0df7c91f | 2233 | peer->password = XSTRDUP (MTYPE_PEER_PASSWORD, conf->password); |
0df7c91f | 2234 | |
89ca90fa | 2235 | if (! BGP_PEER_SU_UNSPEC(peer)) |
2236 | bgp_md5_set (peer); | |
0df7c91f | 2237 | |
718e3744 | 2238 | /* update-source apply */ |
2239 | if (conf->update_source) | |
2240 | { | |
2241 | if (peer->update_source) | |
2242 | sockunion_free (peer->update_source); | |
2243 | if (peer->update_if) | |
2244 | { | |
2245 | XFREE (MTYPE_PEER_UPDATE_SOURCE, peer->update_if); | |
2246 | peer->update_if = NULL; | |
2247 | } | |
2248 | peer->update_source = sockunion_dup (conf->update_source); | |
2249 | } | |
2250 | else if (conf->update_if) | |
2251 | { | |
2252 | if (peer->update_if) | |
6e919709 | 2253 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); |
718e3744 | 2254 | if (peer->update_source) |
2255 | { | |
2256 | sockunion_free (peer->update_source); | |
2257 | peer->update_source = NULL; | |
2258 | } | |
2259 | peer->update_if = XSTRDUP (MTYPE_PEER_UPDATE_SOURCE, conf->update_if); | |
2260 | } | |
8d78d851 | 2261 | |
2262 | bgp_bfd_peer_group2peer_copy(conf, peer); | |
a4ed4829 DW |
2263 | } |
2264 | ||
2265 | static void | |
2266 | peer_group2peer_config_copy_af (struct peer_group *group, struct peer *peer, | |
2267 | afi_t afi, safi_t safi) | |
2268 | { | |
2269 | int in = FILTER_IN; | |
2270 | int out = FILTER_OUT; | |
2271 | struct peer *conf; | |
2272 | struct bgp_filter *pfilter; | |
2273 | struct bgp_filter *gfilter; | |
2274 | ||
2275 | conf = group->conf; | |
2276 | pfilter = &peer->filter[afi][safi]; | |
2277 | gfilter = &conf->filter[afi][safi]; | |
2278 | ||
2279 | /* peer af_flags apply */ | |
2280 | peer->af_flags[afi][safi] = conf->af_flags[afi][safi]; | |
2281 | ||
2282 | /* maximum-prefix */ | |
2283 | peer->pmax[afi][safi] = conf->pmax[afi][safi]; | |
2284 | peer->pmax_threshold[afi][safi] = conf->pmax_threshold[afi][safi]; | |
2285 | peer->pmax_restart[afi][safi] = conf->pmax_restart[afi][safi]; | |
2286 | ||
2287 | /* allowas-in */ | |
2288 | peer->allowas_in[afi][safi] = conf->allowas_in[afi][safi]; | |
2289 | ||
2290 | /* default-originate route-map */ | |
2291 | if (conf->default_rmap[afi][safi].name) | |
2292 | { | |
2293 | if (peer->default_rmap[afi][safi].name) | |
2294 | XFREE(MTYPE_BGP_FILTER_NAME, peer->default_rmap[afi][safi].name); | |
2295 | peer->default_rmap[afi][safi].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, conf->default_rmap[afi][safi].name); | |
2296 | peer->default_rmap[afi][safi].map = conf->default_rmap[afi][safi].map; | |
2297 | } | |
718e3744 | 2298 | |
2299 | /* inbound filter apply */ | |
2300 | if (gfilter->dlist[in].name && ! pfilter->dlist[in].name) | |
2301 | { | |
2302 | if (pfilter->dlist[in].name) | |
6e919709 DS |
2303 | XFREE(MTYPE_BGP_FILTER_NAME, pfilter->dlist[in].name); |
2304 | pfilter->dlist[in].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, gfilter->dlist[in].name); | |
718e3744 | 2305 | pfilter->dlist[in].alist = gfilter->dlist[in].alist; |
2306 | } | |
a4ed4829 | 2307 | |
718e3744 | 2308 | if (gfilter->plist[in].name && ! pfilter->plist[in].name) |
2309 | { | |
2310 | if (pfilter->plist[in].name) | |
6e919709 DS |
2311 | XFREE(MTYPE_BGP_FILTER_NAME, pfilter->plist[in].name); |
2312 | pfilter->plist[in].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, gfilter->plist[in].name); | |
718e3744 | 2313 | pfilter->plist[in].plist = gfilter->plist[in].plist; |
2314 | } | |
a4ed4829 | 2315 | |
718e3744 | 2316 | if (gfilter->aslist[in].name && ! pfilter->aslist[in].name) |
2317 | { | |
2318 | if (pfilter->aslist[in].name) | |
6e919709 DS |
2319 | XFREE(MTYPE_BGP_FILTER_NAME, pfilter->aslist[in].name); |
2320 | pfilter->aslist[in].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, gfilter->aslist[in].name); | |
718e3744 | 2321 | pfilter->aslist[in].aslist = gfilter->aslist[in].aslist; |
2322 | } | |
a4ed4829 | 2323 | |
fee0f4c6 | 2324 | if (gfilter->map[RMAP_IN].name && ! pfilter->map[RMAP_IN].name) |
718e3744 | 2325 | { |
fee0f4c6 | 2326 | if (pfilter->map[RMAP_IN].name) |
6e919709 DS |
2327 | XFREE(MTYPE_BGP_FILTER_NAME, pfilter->map[RMAP_IN].name); |
2328 | pfilter->map[RMAP_IN].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, gfilter->map[RMAP_IN].name); | |
fee0f4c6 | 2329 | pfilter->map[RMAP_IN].map = gfilter->map[RMAP_IN].map; |
718e3744 | 2330 | } |
2331 | ||
2332 | /* outbound filter apply */ | |
2333 | if (gfilter->dlist[out].name) | |
2334 | { | |
2335 | if (pfilter->dlist[out].name) | |
6e919709 DS |
2336 | XFREE(MTYPE_BGP_FILTER_NAME, pfilter->dlist[out].name); |
2337 | pfilter->dlist[out].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, gfilter->dlist[out].name); | |
718e3744 | 2338 | pfilter->dlist[out].alist = gfilter->dlist[out].alist; |
2339 | } | |
2340 | else | |
2341 | { | |
2342 | if (pfilter->dlist[out].name) | |
6e919709 | 2343 | XFREE(MTYPE_BGP_FILTER_NAME, pfilter->dlist[out].name); |
718e3744 | 2344 | pfilter->dlist[out].name = NULL; |
2345 | pfilter->dlist[out].alist = NULL; | |
2346 | } | |
a4ed4829 | 2347 | |
718e3744 | 2348 | if (gfilter->plist[out].name) |
2349 | { | |
2350 | if (pfilter->plist[out].name) | |
6e919709 DS |
2351 | XFREE(MTYPE_BGP_FILTER_NAME, pfilter->plist[out].name); |
2352 | pfilter->plist[out].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, gfilter->plist[out].name); | |
718e3744 | 2353 | pfilter->plist[out].plist = gfilter->plist[out].plist; |
2354 | } | |
2355 | else | |
2356 | { | |
2357 | if (pfilter->plist[out].name) | |
6e919709 | 2358 | XFREE(MTYPE_BGP_FILTER_NAME, pfilter->plist[out].name); |
718e3744 | 2359 | pfilter->plist[out].name = NULL; |
2360 | pfilter->plist[out].plist = NULL; | |
2361 | } | |
a4ed4829 | 2362 | |
718e3744 | 2363 | if (gfilter->aslist[out].name) |
2364 | { | |
2365 | if (pfilter->aslist[out].name) | |
6e919709 DS |
2366 | XFREE(MTYPE_BGP_FILTER_NAME, pfilter->aslist[out].name); |
2367 | pfilter->aslist[out].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, gfilter->aslist[out].name); | |
718e3744 | 2368 | pfilter->aslist[out].aslist = gfilter->aslist[out].aslist; |
2369 | } | |
2370 | else | |
2371 | { | |
2372 | if (pfilter->aslist[out].name) | |
6e919709 | 2373 | XFREE(MTYPE_BGP_FILTER_NAME, pfilter->aslist[out].name); |
718e3744 | 2374 | pfilter->aslist[out].name = NULL; |
2375 | pfilter->aslist[out].aslist = NULL; | |
2376 | } | |
a4ed4829 | 2377 | |
fee0f4c6 | 2378 | if (gfilter->map[RMAP_OUT].name) |
2379 | { | |
2380 | if (pfilter->map[RMAP_OUT].name) | |
6e919709 DS |
2381 | XFREE(MTYPE_BGP_FILTER_NAME, pfilter->map[RMAP_OUT].name); |
2382 | pfilter->map[RMAP_OUT].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, gfilter->map[RMAP_OUT].name); | |
fee0f4c6 | 2383 | pfilter->map[RMAP_OUT].map = gfilter->map[RMAP_OUT].map; |
2384 | } | |
2385 | else | |
2386 | { | |
2387 | if (pfilter->map[RMAP_OUT].name) | |
6e919709 | 2388 | XFREE(MTYPE_BGP_FILTER_NAME, pfilter->map[RMAP_OUT].name); |
fee0f4c6 | 2389 | pfilter->map[RMAP_OUT].name = NULL; |
2390 | pfilter->map[RMAP_OUT].map = NULL; | |
2391 | } | |
2392 | ||
718e3744 | 2393 | if (gfilter->usmap.name) |
2394 | { | |
2395 | if (pfilter->usmap.name) | |
6e919709 DS |
2396 | XFREE(MTYPE_BGP_FILTER_NAME, pfilter->usmap.name); |
2397 | pfilter->usmap.name = XSTRDUP(MTYPE_BGP_FILTER_NAME, gfilter->usmap.name); | |
718e3744 | 2398 | pfilter->usmap.map = gfilter->usmap.map; |
2399 | } | |
2400 | else | |
2401 | { | |
2402 | if (pfilter->usmap.name) | |
6e919709 | 2403 | XFREE(MTYPE_BGP_FILTER_NAME, pfilter->usmap.name); |
718e3744 | 2404 | pfilter->usmap.name = NULL; |
2405 | pfilter->usmap.map = NULL; | |
2406 | } | |
2407 | } | |
2408 | ||
2409 | /* Peer group's remote AS configuration. */ | |
2410 | int | |
0299c004 DS |
2411 | peer_group_remote_as (struct bgp *bgp, const char *group_name, |
2412 | as_t *as, int as_type) | |
718e3744 | 2413 | { |
2414 | struct peer_group *group; | |
2415 | struct peer *peer; | |
1eb8ef25 | 2416 | struct listnode *node, *nnode; |
718e3744 | 2417 | |
2418 | group = peer_group_lookup (bgp, group_name); | |
2419 | if (! group) | |
2420 | return -1; | |
2421 | ||
0299c004 | 2422 | if ((as_type == group->conf->as_type) && (group->conf->as == *as)) |
718e3744 | 2423 | return 0; |
2424 | ||
0299c004 | 2425 | |
718e3744 | 2426 | /* When we setup peer-group AS number all peer group member's AS |
2427 | number must be updated to same number. */ | |
0299c004 | 2428 | peer_as_change (group->conf, *as, as_type); |
718e3744 | 2429 | |
1eb8ef25 | 2430 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, peer)) |
718e3744 | 2431 | { |
9da3a1a1 DS |
2432 | if (((peer->as_type == AS_SPECIFIED) && peer->as != *as) || |
2433 | (peer->as_type != as_type)) | |
0299c004 | 2434 | peer_as_change (peer, *as, as_type); |
718e3744 | 2435 | } |
2436 | ||
2437 | return 0; | |
2438 | } | |
2439 | ||
2440 | int | |
2441 | peer_group_delete (struct peer_group *group) | |
2442 | { | |
2443 | struct bgp *bgp; | |
2444 | struct peer *peer; | |
f14e6fdb | 2445 | struct prefix *prefix; |
1ff9a340 | 2446 | struct peer *other; |
1eb8ef25 | 2447 | struct listnode *node, *nnode; |
f14e6fdb | 2448 | afi_t afi; |
718e3744 | 2449 | |
2450 | bgp = group->bgp; | |
2451 | ||
1eb8ef25 | 2452 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, peer)) |
718e3744 | 2453 | { |
1ff9a340 | 2454 | other = peer->doppelganger; |
718e3744 | 2455 | peer_delete (peer); |
1ff9a340 DS |
2456 | if (other && other->status != Deleted) |
2457 | { | |
2458 | other->group = NULL; | |
2459 | peer_delete(other); | |
2460 | } | |
718e3744 | 2461 | } |
2462 | list_delete (group->peer); | |
2463 | ||
f14e6fdb DS |
2464 | for (afi = AFI_IP; afi < AFI_MAX; afi++) |
2465 | { | |
2466 | for (ALL_LIST_ELEMENTS (group->listen_range[afi], node, nnode, prefix)) | |
2467 | { | |
2468 | prefix_free(prefix); | |
2469 | } | |
2470 | list_delete (group->listen_range[afi]); | |
2471 | } | |
2472 | ||
6e919709 | 2473 | XFREE(MTYPE_BGP_PEER_HOST, group->name); |
718e3744 | 2474 | group->name = NULL; |
2475 | ||
2476 | group->conf->group = NULL; | |
2477 | peer_delete (group->conf); | |
2478 | ||
2479 | /* Delete from all peer_group list. */ | |
2480 | listnode_delete (bgp->group, group); | |
2481 | ||
7f342629 | 2482 | bfd_info_free(&(group->conf->bfd_info)); |
c43ed2e4 | 2483 | |
718e3744 | 2484 | peer_group_free (group); |
2485 | ||
2486 | return 0; | |
2487 | } | |
2488 | ||
2489 | int | |
2490 | peer_group_remote_as_delete (struct peer_group *group) | |
2491 | { | |
1ff9a340 | 2492 | struct peer *peer, *other; |
1eb8ef25 | 2493 | struct listnode *node, *nnode; |
718e3744 | 2494 | |
0299c004 DS |
2495 | if ((group->conf->as_type == AS_UNSPECIFIED) || |
2496 | ((! group->conf->as) && (group->conf->as_type == AS_SPECIFIED))) | |
718e3744 | 2497 | return 0; |
2498 | ||
1eb8ef25 | 2499 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, peer)) |
718e3744 | 2500 | { |
1ff9a340 DS |
2501 | other = peer->doppelganger; |
2502 | ||
718e3744 | 2503 | peer_delete (peer); |
1ff9a340 DS |
2504 | |
2505 | if (other && other->status != Deleted) | |
2506 | { | |
2507 | other->group = NULL; | |
2508 | peer_delete(other); | |
2509 | } | |
718e3744 | 2510 | } |
2511 | list_delete_all_node (group->peer); | |
2512 | ||
2513 | group->conf->as = 0; | |
0299c004 | 2514 | group->conf->as_type = AS_UNSPECIFIED; |
718e3744 | 2515 | |
2516 | return 0; | |
2517 | } | |
2518 | ||
f14e6fdb DS |
2519 | int |
2520 | peer_group_listen_range_add (struct peer_group *group, struct prefix *range) | |
2521 | { | |
2522 | struct prefix *prefix; | |
2523 | struct listnode *node, *nnode; | |
2524 | afi_t afi; | |
2525 | ||
2526 | afi = family2afi(range->family); | |
2527 | ||
2528 | /* Group needs remote AS configured. */ | |
2aab8d2b | 2529 | if (group->conf->as_type == AS_UNSPECIFIED) |
f14e6fdb DS |
2530 | return BGP_ERR_PEER_GROUP_NO_REMOTE_AS; |
2531 | ||
2532 | /* Ensure no duplicates. Currently we don't care about overlaps. */ | |
2533 | for (ALL_LIST_ELEMENTS (group->listen_range[afi], node, nnode, prefix)) | |
2534 | { | |
2535 | if (prefix_same(range, prefix)) | |
57e9ee0a | 2536 | return 0; |
f14e6fdb DS |
2537 | } |
2538 | ||
2539 | prefix = prefix_new(); | |
2540 | prefix_copy(prefix, range); | |
2541 | listnode_add(group->listen_range[afi], prefix); | |
2542 | return 0; | |
2543 | } | |
2544 | ||
2545 | int | |
2546 | peer_group_listen_range_del (struct peer_group *group, struct prefix *range) | |
2547 | { | |
40ee54a7 | 2548 | struct prefix *prefix, prefix2; |
f14e6fdb DS |
2549 | struct listnode *node, *nnode; |
2550 | struct peer *peer; | |
2551 | afi_t afi; | |
4690c7d7 | 2552 | char buf[PREFIX2STR_BUFFER]; |
f14e6fdb DS |
2553 | |
2554 | afi = family2afi(range->family); | |
2555 | ||
2556 | /* Identify the listen range. */ | |
2557 | for (ALL_LIST_ELEMENTS (group->listen_range[afi], node, nnode, prefix)) | |
2558 | { | |
2559 | if (prefix_same(range, prefix)) | |
2560 | break; | |
2561 | } | |
2562 | ||
2563 | if (!prefix) | |
2564 | return BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_NOT_FOUND; | |
2565 | ||
2566 | prefix2str(prefix, buf, sizeof(buf)); | |
2567 | ||
2568 | /* Dispose off any dynamic neighbors that exist due to this listen range */ | |
2569 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, peer)) | |
2570 | { | |
2571 | if (!peer_dynamic_neighbor (peer)) | |
2572 | continue; | |
2573 | ||
40ee54a7 TT |
2574 | sockunion2hostprefix(&peer->su, &prefix2); |
2575 | if (prefix_match(prefix, &prefix2)) | |
f14e6fdb DS |
2576 | { |
2577 | if (bgp_debug_neighbor_events(peer)) | |
2578 | zlog_debug ("Deleting dynamic neighbor %s group %s upon " | |
2579 | "delete of listen range %s", | |
2580 | peer->host, group->name, buf); | |
2581 | peer_delete (peer); | |
2582 | } | |
2583 | } | |
2584 | ||
2585 | /* Get rid of the listen range */ | |
2586 | listnode_delete(group->listen_range[afi], prefix); | |
2587 | ||
2588 | return 0; | |
2589 | } | |
2590 | ||
718e3744 | 2591 | /* Bind specified peer to peer group. */ |
2592 | int | |
a80beece | 2593 | peer_group_bind (struct bgp *bgp, union sockunion *su, struct peer *peer, |
c8560b44 | 2594 | struct peer_group *group, as_t *as) |
718e3744 | 2595 | { |
718e3744 | 2596 | int first_member = 0; |
c8560b44 DW |
2597 | afi_t afi; |
2598 | safi_t safi; | |
b3a39dc5 | 2599 | int cap_enhe_preset = 0; |
718e3744 | 2600 | |
2601 | /* Lookup the peer. */ | |
a80beece | 2602 | if (!peer) |
c8560b44 | 2603 | peer = peer_lookup (bgp, su); |
718e3744 | 2604 | |
c8560b44 DW |
2605 | /* The peer exist, bind it to the peer-group */ |
2606 | if (peer) | |
718e3744 | 2607 | { |
c8560b44 DW |
2608 | /* When the peer already belongs to peer group, check the consistency. */ |
2609 | if (peer_group_active (peer) && strcmp (peer->group->name, group->name) != 0) | |
4c48cf63 | 2610 | return BGP_ERR_PEER_GROUP_CANT_CHANGE; |
718e3744 | 2611 | |
c8560b44 DW |
2612 | /* The peer has not specified a remote-as, inherit it from the |
2613 | * peer-group */ | |
2614 | if (peer->as_type == AS_UNSPECIFIED) | |
2615 | { | |
2616 | peer->as_type = group->conf->as_type; | |
2617 | peer->as = group->conf->as; | |
2618 | } | |
200df115 | 2619 | |
c8560b44 DW |
2620 | if (! group->conf->as) |
2621 | { | |
2622 | if (peer_sort (group->conf) != BGP_PEER_INTERNAL | |
2623 | && peer_sort (group->conf) != peer_sort (peer)) | |
2624 | { | |
2625 | if (as) | |
2626 | *as = peer->as; | |
2627 | return BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT; | |
2628 | } | |
718e3744 | 2629 | |
c8560b44 DW |
2630 | if (peer_sort (group->conf) == BGP_PEER_INTERNAL) |
2631 | first_member = 1; | |
2632 | } | |
718e3744 | 2633 | |
b3a39dc5 DD |
2634 | if (CHECK_FLAG (peer->flags, PEER_FLAG_CAPABILITY_ENHE)) |
2635 | cap_enhe_preset = 1; | |
2636 | ||
a4ed4829 DW |
2637 | peer_group2peer_config_copy(group, peer); |
2638 | ||
b3a39dc5 DD |
2639 | /* |
2640 | * Capability extended-nexthop is enabled for an interface neighbor by | |
2641 | * default. So, fix that up here. | |
2642 | */ | |
2643 | if (peer->ifp && cap_enhe_preset) | |
2644 | peer_flag_set (peer, PEER_FLAG_CAPABILITY_ENHE); | |
2645 | ||
c8560b44 DW |
2646 | for (afi = AFI_IP; afi < AFI_MAX; afi++) |
2647 | for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++) | |
2648 | { | |
2649 | if (group->conf->afc[afi][safi]) | |
2650 | { | |
2651 | peer->afc[afi][safi] = 1; | |
718e3744 | 2652 | |
c8560b44 DW |
2653 | if (peer_af_find(peer, afi, safi) || peer_af_create(peer, afi, safi)) |
2654 | { | |
a4ed4829 | 2655 | peer_group2peer_config_copy_af (group, peer, afi, safi); |
c8560b44 DW |
2656 | } |
2657 | } | |
2658 | } | |
718e3744 | 2659 | |
c8560b44 DW |
2660 | if (peer->group) |
2661 | { | |
2662 | assert (group && peer->group == group); | |
2663 | } | |
2664 | else | |
2665 | { | |
0aaa34db DS |
2666 | struct listnode *pn; |
2667 | pn = listnode_lookup (bgp->peer, peer); | |
2668 | list_delete_node (bgp->peer, pn); | |
c8560b44 | 2669 | peer->group = group; |
0aaa34db | 2670 | listnode_add_sort (bgp->peer, peer); |
718e3744 | 2671 | |
c8560b44 DW |
2672 | peer = peer_lock (peer); /* group->peer list reference */ |
2673 | listnode_add (group->peer, peer); | |
2674 | } | |
0299c004 | 2675 | |
c8560b44 DW |
2676 | if (first_member) |
2677 | { | |
2678 | /* Advertisement-interval reset */ | |
2679 | if (! CHECK_FLAG (group->conf->config, PEER_CONFIG_ROUTEADV)) | |
2680 | { | |
2681 | if (peer_sort (group->conf) == BGP_PEER_IBGP) | |
2682 | group->conf->v_routeadv = BGP_DEFAULT_IBGP_ROUTEADV; | |
2683 | else | |
2684 | group->conf->v_routeadv = BGP_DEFAULT_EBGP_ROUTEADV; | |
2685 | } | |
718e3744 | 2686 | |
c8560b44 DW |
2687 | /* ebgp-multihop reset */ |
2688 | if (peer_sort (group->conf) == BGP_PEER_IBGP) | |
9b1be336 | 2689 | group->conf->ttl = MAXTTL; |
718e3744 | 2690 | |
c8560b44 DW |
2691 | /* local-as reset */ |
2692 | if (peer_sort (group->conf) != BGP_PEER_EBGP) | |
2693 | { | |
2694 | group->conf->change_local_as = 0; | |
2695 | UNSET_FLAG (peer->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
2696 | UNSET_FLAG (peer->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
2697 | } | |
2698 | } | |
2699 | ||
2700 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); | |
2701 | ||
2702 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
2703 | { | |
2704 | peer->last_reset = PEER_DOWN_RMAP_BIND; | |
2705 | bgp_notify_send (peer, BGP_NOTIFY_CEASE, | |
2706 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
2707 | } | |
2708 | else | |
2709 | { | |
2710 | bgp_session_reset(peer); | |
2711 | } | |
3f9c7369 | 2712 | } |
c8560b44 DW |
2713 | |
2714 | /* Create a new peer. */ | |
2715 | else | |
718e3744 | 2716 | { |
c8560b44 DW |
2717 | if ((group->conf->as_type == AS_SPECIFIED) && (! group->conf->as)) |
2718 | { | |
2719 | return BGP_ERR_PEER_GROUP_NO_REMOTE_AS; | |
2720 | } | |
2721 | ||
f813b13b | 2722 | peer = peer_create (su, NULL, bgp, bgp->as, group->conf->as, group->conf->as_type, 0, 0, group); |
c8560b44 | 2723 | |
ca058a30 | 2724 | peer = peer_lock (peer); /* group->peer list reference */ |
718e3744 | 2725 | listnode_add (group->peer, peer); |
718e3744 | 2726 | |
a4ed4829 DW |
2727 | peer_group2peer_config_copy(group, peer); |
2728 | ||
c8560b44 DW |
2729 | /* If the peer-group is active for this afi/safi then activate for this peer */ |
2730 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
2731 | for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++) | |
2732 | if (group->conf->afc[afi][safi]) | |
2733 | { | |
2734 | peer->afc[afi][safi] = 1; | |
2735 | peer_af_create(peer, afi, safi); | |
a4ed4829 | 2736 | peer_group2peer_config_copy_af (group, peer, afi, safi); |
c8560b44 | 2737 | } |
fee0f4c6 | 2738 | |
c8560b44 | 2739 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); |
718e3744 | 2740 | |
c8560b44 DW |
2741 | /* Set up peer's events and timers. */ |
2742 | if (peer_active (peer)) | |
2743 | bgp_timer_set (peer); | |
e0701b79 | 2744 | } |
718e3744 | 2745 | |
2746 | return 0; | |
2747 | } | |
2748 | ||
2749 | int | |
2750 | peer_group_unbind (struct bgp *bgp, struct peer *peer, | |
c8560b44 | 2751 | struct peer_group *group) |
718e3744 | 2752 | { |
1ff9a340 | 2753 | struct peer *other; |
c8560b44 DW |
2754 | afi_t afi; |
2755 | safi_t safi; | |
718e3744 | 2756 | |
2757 | if (group != peer->group) | |
2758 | return BGP_ERR_PEER_GROUP_MISMATCH; | |
2759 | ||
c8560b44 DW |
2760 | for (afi = AFI_IP; afi < AFI_MAX; afi++) |
2761 | for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++) | |
2762 | { | |
2763 | if (peer->afc[afi][safi]) | |
2764 | { | |
2765 | peer->afc[afi][safi] = 0; | |
2766 | peer_af_flag_reset (peer, afi, safi); | |
718e3744 | 2767 | |
c8560b44 DW |
2768 | if (peer_af_delete(peer, afi, safi) != 0) |
2769 | { | |
2770 | zlog_err("couldn't delete af structure for peer %s", peer->host); | |
2771 | } | |
2772 | } | |
2773 | } | |
2774 | ||
2775 | assert (listnode_lookup (group->peer, peer)); | |
2776 | peer_unlock (peer); /* peer group list reference */ | |
2777 | listnode_delete (group->peer, peer); | |
2778 | peer->group = NULL; | |
2779 | other = peer->doppelganger; | |
2780 | ||
2781 | if (group->conf->as) | |
718e3744 | 2782 | { |
c8560b44 DW |
2783 | peer_delete (peer); |
2784 | if (other && other->status != Deleted) | |
2785 | { | |
2786 | if (other->group) | |
2787 | { | |
2788 | peer_unlock(other); | |
2789 | listnode_delete(group->peer, other); | |
2790 | } | |
2791 | other->group = NULL; | |
2792 | peer_delete(other); | |
2793 | } | |
2794 | return 0; | |
718e3744 | 2795 | } |
2796 | ||
c8560b44 DW |
2797 | bgp_bfd_deregister_peer(peer); |
2798 | peer_global_config_reset (peer); | |
2799 | ||
6aa136f1 | 2800 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
e0701b79 | 2801 | { |
2802 | peer->last_reset = PEER_DOWN_RMAP_UNBIND; | |
2803 | bgp_notify_send (peer, BGP_NOTIFY_CEASE, | |
2804 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
2805 | } | |
718e3744 | 2806 | else |
1ff9a340 | 2807 | bgp_session_reset(peer); |
718e3744 | 2808 | |
2809 | return 0; | |
2810 | } | |
6b0655a2 | 2811 | |
fe7d2a48 DS |
2812 | static int |
2813 | bgp_startup_timer_expire (struct thread *thread) | |
2814 | { | |
2815 | struct bgp *bgp; | |
2816 | ||
2817 | bgp = THREAD_ARG (thread); | |
2818 | bgp->t_startup = NULL; | |
2819 | ||
2820 | return 0; | |
2821 | } | |
2822 | ||
718e3744 | 2823 | /* BGP instance creation by `router bgp' commands. */ |
94f2b392 | 2824 | static struct bgp * |
ad4cbda1 | 2825 | bgp_create (as_t *as, const char *name, enum bgp_instance_type inst_type) |
718e3744 | 2826 | { |
2827 | struct bgp *bgp; | |
2828 | afi_t afi; | |
2829 | safi_t safi; | |
2830 | ||
200df115 | 2831 | if ( (bgp = XCALLOC (MTYPE_BGP, sizeof (struct bgp))) == NULL) |
2832 | return NULL; | |
2833 | ||
ad4cbda1 | 2834 | if (BGP_DEBUG (zebra, ZEBRA)) |
2835 | { | |
2836 | if (inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
2837 | zlog_debug("Creating Default VRF, AS %u", *as); | |
2838 | else | |
2839 | zlog_debug("Creating %s %s, AS %u", | |
2840 | (inst_type == BGP_INSTANCE_TYPE_VRF) ? "VRF" : "VIEW", | |
2841 | name, *as); | |
2842 | } | |
2843 | ||
0088b5dc | 2844 | bgp_lock (bgp); |
ad4cbda1 | 2845 | bgp->inst_type = inst_type; |
5c81a5f3 | 2846 | bgp->vrf_id = (inst_type == BGP_INSTANCE_TYPE_DEFAULT) ? |
2847 | VRF_DEFAULT : VRF_UNKNOWN; | |
6f58544d | 2848 | bgp->peer_self = peer_new (bgp); |
6e919709 DS |
2849 | if (bgp->peer_self->host) |
2850 | XFREE(MTYPE_BGP_PEER_HOST, bgp->peer_self->host); | |
2851 | bgp->peer_self->host = XSTRDUP(MTYPE_BGP_PEER_HOST, "Static announcement"); | |
718e3744 | 2852 | bgp->peer = list_new (); |
2853 | bgp->peer->cmp = (int (*)(void *, void *)) peer_cmp; | |
dd793e4a | 2854 | bgp->peerhash = hash_create (peer_hash_key_make, peer_hash_cmp); |
718e3744 | 2855 | |
2856 | bgp->group = list_new (); | |
2857 | bgp->group->cmp = (int (*)(void *, void *)) peer_group_cmp; | |
2858 | ||
2859 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
2860 | for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++) | |
2861 | { | |
64e580a7 PJ |
2862 | bgp->route[afi][safi] = bgp_table_init (afi, safi); |
2863 | bgp->aggregate[afi][safi] = bgp_table_init (afi, safi); | |
2864 | bgp->rib[afi][safi] = bgp_table_init (afi, safi); | |
219178b6 DW |
2865 | |
2866 | /* Enable maximum-paths */ | |
d5b77cc2 DS |
2867 | bgp_maximum_paths_set (bgp, afi, safi, BGP_PEER_EBGP, MULTIPATH_NUM, 0); |
2868 | bgp_maximum_paths_set (bgp, afi, safi, BGP_PEER_IBGP, MULTIPATH_NUM, 0); | |
718e3744 | 2869 | } |
2870 | ||
f188f2c4 | 2871 | bgp->v_update_delay = BGP_UPDATE_DELAY_DEF; |
718e3744 | 2872 | bgp->default_local_pref = BGP_DEFAULT_LOCAL_PREF; |
3f9c7369 | 2873 | bgp->default_subgroup_pkt_queue_max = BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX; |
718e3744 | 2874 | bgp->default_holdtime = BGP_DEFAULT_HOLDTIME; |
2875 | bgp->default_keepalive = BGP_DEFAULT_KEEPALIVE; | |
538621f2 | 2876 | bgp->restart_time = BGP_DEFAULT_RESTART_TIME; |
2877 | bgp->stalepath_time = BGP_DEFAULT_STALEPATH_TIME; | |
f14e6fdb DS |
2878 | bgp->dynamic_neighbors_limit = BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT; |
2879 | bgp->dynamic_neighbors_count = 0; | |
5623e905 | 2880 | bgp_flag_set (bgp, BGP_FLAG_IMPORT_CHECK); |
15f3b5c0 | 2881 | bgp_flag_set (bgp, BGP_FLAG_SHOW_HOSTNAME); |
6793fbe0 | 2882 | bgp_flag_set (bgp, BGP_FLAG_LOG_NEIGHBOR_CHANGES); |
1475ac87 | 2883 | bgp_flag_set (bgp, BGP_FLAG_DETERMINISTIC_MED); |
adbac85e | 2884 | bgp->addpath_tx_id = BGP_ADDPATH_TX_ID_FOR_DEFAULT_ORIGINATE; |
718e3744 | 2885 | |
2886 | bgp->as = *as; | |
2887 | ||
2888 | if (name) | |
6aeb9e78 DS |
2889 | { |
2890 | bgp->name = XSTRDUP(MTYPE_BGP, name); | |
2891 | } | |
2892 | else | |
2893 | { | |
ad4cbda1 | 2894 | /* TODO - The startup timer needs to be run for the whole of BGP */ |
6aeb9e78 DS |
2895 | THREAD_TIMER_ON (bm->master, bgp->t_startup, bgp_startup_timer_expire, |
2896 | bgp, bgp->restart_time); | |
2897 | } | |
718e3744 | 2898 | |
cb1faec9 | 2899 | bgp->wpkt_quanta = BGP_WRITE_PACKET_MAX; |
3f9c7369 | 2900 | bgp->coalesce_time = BGP_DEFAULT_SUBGROUP_COALESCE_TIME; |
cb1faec9 | 2901 | |
6aeb9e78 DS |
2902 | update_bgp_group_init(bgp); |
2903 | return bgp; | |
2904 | } | |
2905 | ||
ad4cbda1 | 2906 | /* Return the "default VRF" instance of BGP. */ |
718e3744 | 2907 | struct bgp * |
94f2b392 | 2908 | bgp_get_default (void) |
718e3744 | 2909 | { |
ad4cbda1 | 2910 | struct bgp *bgp; |
2911 | struct listnode *node, *nnode; | |
2912 | ||
2913 | for (ALL_LIST_ELEMENTS (bm->bgp, node, nnode, bgp)) | |
2914 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
2915 | return bgp; | |
718e3744 | 2916 | return NULL; |
2917 | } | |
2918 | ||
2919 | /* Lookup BGP entry. */ | |
2920 | struct bgp * | |
fd79ac91 | 2921 | bgp_lookup (as_t as, const char *name) |
718e3744 | 2922 | { |
2923 | struct bgp *bgp; | |
1eb8ef25 | 2924 | struct listnode *node, *nnode; |
718e3744 | 2925 | |
1eb8ef25 | 2926 | for (ALL_LIST_ELEMENTS (bm->bgp, node, nnode, bgp)) |
718e3744 | 2927 | if (bgp->as == as |
2928 | && ((bgp->name == NULL && name == NULL) | |
2929 | || (bgp->name && name && strcmp (bgp->name, name) == 0))) | |
2930 | return bgp; | |
2931 | return NULL; | |
2932 | } | |
2933 | ||
2934 | /* Lookup BGP structure by view name. */ | |
2935 | struct bgp * | |
fd79ac91 | 2936 | bgp_lookup_by_name (const char *name) |
718e3744 | 2937 | { |
2938 | struct bgp *bgp; | |
1eb8ef25 | 2939 | struct listnode *node, *nnode; |
718e3744 | 2940 | |
1eb8ef25 | 2941 | for (ALL_LIST_ELEMENTS (bm->bgp, node, nnode, bgp)) |
718e3744 | 2942 | if ((bgp->name == NULL && name == NULL) |
2943 | || (bgp->name && name && strcmp (bgp->name, name) == 0)) | |
2944 | return bgp; | |
2945 | return NULL; | |
2946 | } | |
2947 | ||
d1be1f08 | 2948 | /* Lookup BGP instance based on VRF id. */ |
2949 | /* Note: Only to be used for incoming messages from Zebra. */ | |
6aeb9e78 DS |
2950 | struct bgp * |
2951 | bgp_lookup_by_vrf_id (vrf_id_t vrf_id) | |
ad4cbda1 | 2952 | { |
2953 | struct vrf *vrf; | |
2954 | ||
d1be1f08 | 2955 | /* Lookup VRF (in tree) and follow link. */ |
2956 | vrf = vrf_lookup (vrf_id); | |
ad4cbda1 | 2957 | if (!vrf) |
d1be1f08 | 2958 | return NULL; |
2959 | return (vrf->info) ? (struct bgp *)vrf->info : NULL; | |
ad4cbda1 | 2960 | } |
2961 | ||
718e3744 | 2962 | /* Called from VTY commands. */ |
2963 | int | |
ad4cbda1 | 2964 | bgp_get (struct bgp **bgp_val, as_t *as, const char *name, |
2965 | enum bgp_instance_type inst_type) | |
718e3744 | 2966 | { |
2967 | struct bgp *bgp; | |
2968 | ||
2969 | /* Multiple instance check. */ | |
2970 | if (bgp_option_check (BGP_OPT_MULTIPLE_INSTANCE)) | |
2971 | { | |
2972 | if (name) | |
2973 | bgp = bgp_lookup_by_name (name); | |
2974 | else | |
2975 | bgp = bgp_get_default (); | |
2976 | ||
2977 | /* Already exists. */ | |
2978 | if (bgp) | |
2979 | { | |
2980 | if (bgp->as != *as) | |
2981 | { | |
2982 | *as = bgp->as; | |
2983 | return BGP_ERR_INSTANCE_MISMATCH; | |
2984 | } | |
ad4cbda1 | 2985 | if (bgp->inst_type != inst_type) |
2986 | return BGP_ERR_INSTANCE_MISMATCH; | |
718e3744 | 2987 | *bgp_val = bgp; |
2988 | return 0; | |
2989 | } | |
2990 | } | |
2991 | else | |
2992 | { | |
2993 | /* BGP instance name can not be specified for single instance. */ | |
2994 | if (name) | |
2995 | return BGP_ERR_MULTIPLE_INSTANCE_NOT_SET; | |
2996 | ||
2997 | /* Get default BGP structure if exists. */ | |
2998 | bgp = bgp_get_default (); | |
2999 | ||
3000 | if (bgp) | |
3001 | { | |
3002 | if (bgp->as != *as) | |
3003 | { | |
3004 | *as = bgp->as; | |
3005 | return BGP_ERR_AS_MISMATCH; | |
3006 | } | |
3007 | *bgp_val = bgp; | |
3008 | return 0; | |
3009 | } | |
3010 | } | |
3011 | ||
ad4cbda1 | 3012 | bgp = bgp_create (as, name, inst_type); |
6aeb9e78 DS |
3013 | bgp_router_id_set(bgp, &bgp->router_id_zebra); |
3014 | bgp_address_init (bgp); | |
3015 | bgp_scan_init (bgp); | |
1758dbaa SA |
3016 | *bgp_val = bgp; |
3017 | ||
0de4848d | 3018 | bgp->t_rmap_def_originate_eval = NULL; |
518f0eb1 | 3019 | |
ad12dde6 | 3020 | /* Create BGP server socket, if first instance. */ |
cccbc015 PJ |
3021 | if (list_isempty(bm->bgp) |
3022 | && !bgp_option_check (BGP_OPT_NO_LISTEN)) | |
ad12dde6 PJ |
3023 | { |
3024 | if (bgp_socket (bm->port, bm->address) < 0) | |
3025 | return BGP_ERR_INVALID_VALUE; | |
3026 | } | |
3027 | ||
718e3744 | 3028 | listnode_add (bm->bgp, bgp); |
718e3744 | 3029 | |
d1be1f08 | 3030 | /* If Default instance or VRF, link to the VRF structure, if present. */ |
3031 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT || | |
3032 | bgp->inst_type == BGP_INSTANCE_TYPE_VRF) | |
3033 | { | |
3034 | struct vrf *vrf; | |
3035 | ||
3036 | vrf = bgp_vrf_lookup_by_instance_type (bgp); | |
3037 | if (vrf) | |
b33adb7c | 3038 | { |
3039 | bgp_vrf_link (bgp, vrf); | |
3040 | bgp_if_init (bgp); | |
3041 | } | |
d1be1f08 | 3042 | } |
ad4cbda1 | 3043 | |
3044 | /* Register with Zebra, if needed */ | |
3045 | if (IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
3046 | bgp_zebra_instance_register (bgp); | |
3047 | ||
6aeb9e78 | 3048 | |
718e3744 | 3049 | return 0; |
3050 | } | |
3051 | ||
ad4cbda1 | 3052 | /* |
3053 | * Make BGP instance "up". Applies only to VRFs (non-default) and | |
3054 | * implies the VRF has been learnt from Zebra. | |
3055 | */ | |
6aeb9e78 | 3056 | void |
ad4cbda1 | 3057 | bgp_instance_up (struct bgp *bgp) |
718e3744 | 3058 | { |
3059 | struct peer *peer; | |
ad4cbda1 | 3060 | struct listnode *node, *next; |
718e3744 | 3061 | |
ad4cbda1 | 3062 | /* Register with zebra. */ |
3063 | bgp_zebra_instance_register (bgp); | |
d4a7a753 | 3064 | |
ad4cbda1 | 3065 | /* Kick off any peers that may have been configured. */ |
cd92e548 DS |
3066 | for (ALL_LIST_ELEMENTS (bgp->peer, node, next, peer)) |
3067 | { | |
ad4cbda1 | 3068 | if (!BGP_PEER_START_SUPPRESSED (peer)) |
3069 | BGP_EVENT_ADD (peer, BGP_Start); | |
cd92e548 DS |
3070 | } |
3071 | ||
ad4cbda1 | 3072 | /* Process any networks that have been configured. */ |
3073 | bgp_static_add (bgp); | |
3074 | } | |
718e3744 | 3075 | |
ad4cbda1 | 3076 | /* |
3077 | * Make BGP instance "down". Applies only to VRFs (non-default) and | |
3078 | * implies the VRF has been deleted by Zebra. | |
3079 | */ | |
3080 | void | |
3081 | bgp_instance_down (struct bgp *bgp) | |
3082 | { | |
3083 | struct peer *peer; | |
3084 | struct listnode *node; | |
3085 | struct listnode *next; | |
718e3744 | 3086 | |
ad4cbda1 | 3087 | /* Stop timers. */ |
ad4cbda1 | 3088 | if (bgp->t_rmap_def_originate_eval) |
6aa136f1 | 3089 | { |
ad4cbda1 | 3090 | BGP_TIMER_OFF(bgp->t_rmap_def_originate_eval); |
3091 | bgp_unlock(bgp); /* TODO - This timer is started with a lock - why? */ | |
6aa136f1 | 3092 | } |
228da428 | 3093 | |
ad4cbda1 | 3094 | /* Bring down peers, so corresponding routes are purged. */ |
1ff9a340 DS |
3095 | for (ALL_LIST_ELEMENTS (bgp->peer, node, next, peer)) |
3096 | { | |
3097 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
ad4cbda1 | 3098 | bgp_notify_send (peer, BGP_NOTIFY_CEASE, BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN); |
3099 | else | |
3100 | bgp_session_reset(peer); | |
6aeb9e78 DS |
3101 | } |
3102 | ||
ad4cbda1 | 3103 | /* Purge network and redistributed routes. */ |
3104 | bgp_purge_static_redist_routes (bgp); | |
6aeb9e78 | 3105 | } |
1ff9a340 | 3106 | |
6aeb9e78 DS |
3107 | /* Delete BGP instance. */ |
3108 | int | |
3109 | bgp_delete (struct bgp *bgp) | |
3110 | { | |
3111 | struct peer *peer; | |
3112 | struct peer_group *group; | |
3113 | struct listnode *node, *next; | |
3114 | afi_t afi; | |
3115 | int i; | |
3116 | ||
7cb43556 | 3117 | THREAD_OFF (bgp->t_startup); |
3118 | ||
ad4cbda1 | 3119 | if (BGP_DEBUG (zebra, ZEBRA)) |
3120 | { | |
3121 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
3122 | zlog_debug("Deleting Default VRF"); | |
3123 | else | |
3124 | zlog_debug("Deleting %s %s", | |
3125 | (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) ? "VRF" : "VIEW", | |
3126 | bgp->name); | |
3127 | } | |
3128 | ||
3129 | /* Stop timers. */ | |
ad4cbda1 | 3130 | if (bgp->t_rmap_def_originate_eval) |
3131 | { | |
3132 | BGP_TIMER_OFF(bgp->t_rmap_def_originate_eval); | |
3133 | bgp_unlock(bgp); /* TODO - This timer is started with a lock - why? */ | |
3134 | } | |
3135 | ||
3136 | /* Inform peers we're going down. */ | |
3137 | for (ALL_LIST_ELEMENTS (bgp->peer, node, next, peer)) | |
3138 | { | |
3139 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
3140 | bgp_notify_send (peer, BGP_NOTIFY_CEASE, BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN); | |
3141 | } | |
7cb43556 | 3142 | |
ad4cbda1 | 3143 | /* Delete static routes (networks). */ |
6aeb9e78 DS |
3144 | bgp_static_delete (bgp); |
3145 | ||
3146 | /* Unset redistribution. */ | |
3147 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
3148 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
3149 | if (i != ZEBRA_ROUTE_BGP) | |
3150 | bgp_redistribute_unset (bgp, afi, i, 0); | |
3151 | ||
ad4cbda1 | 3152 | /* Free peers and peer-groups. */ |
6aeb9e78 | 3153 | for (ALL_LIST_ELEMENTS (bgp->group, node, next, group)) |
ad4cbda1 | 3154 | peer_group_delete (group); |
6aeb9e78 DS |
3155 | |
3156 | for (ALL_LIST_ELEMENTS (bgp->peer, node, next, peer)) | |
ad4cbda1 | 3157 | peer_delete (peer); |
1ff9a340 | 3158 | |
0088b5dc SH |
3159 | if (bgp->peer_self) { |
3160 | peer_delete(bgp->peer_self); | |
3161 | bgp->peer_self = NULL; | |
3162 | } | |
0de4848d | 3163 | |
3d68677e | 3164 | update_bgp_group_free (bgp); |
ad4cbda1 | 3165 | |
3166 | /* TODO - Other memory may need to be freed - e.g., NHT */ | |
3167 | ||
fd35b948 PJ |
3168 | /* Remove visibility via the master list - there may however still be |
3169 | * routes to be processed still referencing the struct bgp. | |
3170 | */ | |
3171 | listnode_delete (bm->bgp, bgp); | |
d023aec4 SH |
3172 | if (list_isempty(bm->bgp)) |
3173 | bgp_close (); | |
3174 | ||
ad4cbda1 | 3175 | /* Deregister from Zebra, if needed */ |
3176 | if (IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
3177 | bgp_zebra_instance_deregister (bgp); | |
3178 | ||
009b18fc | 3179 | /* Free interfaces in this instance. */ |
3180 | bgp_if_finish (bgp); | |
3181 | ||
87d4a781 | 3182 | thread_master_free_unused(bm->master); |
0088b5dc | 3183 | bgp_unlock(bgp); /* initial reference */ |
6410e93a | 3184 | |
0088b5dc SH |
3185 | return 0; |
3186 | } | |
3187 | ||
3188 | static void bgp_free (struct bgp *); | |
3189 | ||
3190 | void | |
3191 | bgp_lock (struct bgp *bgp) | |
3192 | { | |
3193 | ++bgp->lock; | |
3194 | } | |
3195 | ||
3196 | void | |
3197 | bgp_unlock(struct bgp *bgp) | |
3198 | { | |
228da428 | 3199 | assert(bgp->lock > 0); |
0088b5dc SH |
3200 | if (--bgp->lock == 0) |
3201 | bgp_free (bgp); | |
3202 | } | |
3203 | ||
3204 | static void | |
3205 | bgp_free (struct bgp *bgp) | |
3206 | { | |
3207 | afi_t afi; | |
3208 | safi_t safi; | |
d3f5a0d3 | 3209 | struct vrf *vrf; |
0088b5dc SH |
3210 | |
3211 | list_delete (bgp->group); | |
3212 | list_delete (bgp->peer); | |
3ffe142a DW |
3213 | |
3214 | if (bgp->peerhash) | |
3215 | { | |
3216 | hash_free(bgp->peerhash); | |
3217 | bgp->peerhash = NULL; | |
3218 | } | |
fee0f4c6 | 3219 | |
718e3744 | 3220 | for (afi = AFI_IP; afi < AFI_MAX; afi++) |
3221 | for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++) | |
3222 | { | |
3223 | if (bgp->route[afi][safi]) | |
228da428 | 3224 | bgp_table_finish (&bgp->route[afi][safi]); |
718e3744 | 3225 | if (bgp->aggregate[afi][safi]) |
228da428 | 3226 | bgp_table_finish (&bgp->aggregate[afi][safi]) ; |
718e3744 | 3227 | if (bgp->rib[afi][safi]) |
228da428 | 3228 | bgp_table_finish (&bgp->rib[afi][safi]); |
718e3744 | 3229 | } |
d3f5a0d3 | 3230 | |
5e6d589c DS |
3231 | bgp_address_destroy (bgp); |
3232 | ||
d3f5a0d3 | 3233 | /* If Default instance or VRF, unlink from the VRF structure. */ |
3234 | vrf = bgp_vrf_lookup_by_instance_type (bgp); | |
3235 | if (vrf) | |
3236 | bgp_vrf_unlink (bgp, vrf); | |
3237 | ||
4ac82321 | 3238 | if (bgp->name) |
3239 | XFREE(MTYPE_BGP, bgp->name); | |
3240 | ||
718e3744 | 3241 | XFREE (MTYPE_BGP, bgp); |
718e3744 | 3242 | } |
6b0655a2 | 3243 | |
a80beece DS |
3244 | struct peer * |
3245 | peer_lookup_by_conf_if (struct bgp *bgp, const char *conf_if) | |
3246 | { | |
3247 | struct peer *peer; | |
3248 | struct listnode *node, *nnode; | |
3249 | ||
3250 | if (!conf_if) | |
3251 | return NULL; | |
3252 | ||
3253 | if (bgp != NULL) | |
3254 | { | |
3255 | for (ALL_LIST_ELEMENTS (bgp->peer, node, nnode, peer)) | |
3256 | if (peer->conf_if && !strcmp(peer->conf_if, conf_if) | |
3257 | && ! CHECK_FLAG (peer->sflags, PEER_STATUS_ACCEPT_PEER)) | |
3258 | return peer; | |
3259 | } | |
3260 | else if (bm->bgp != NULL) | |
3261 | { | |
3262 | struct listnode *bgpnode, *nbgpnode; | |
3263 | ||
3264 | for (ALL_LIST_ELEMENTS (bm->bgp, bgpnode, nbgpnode, bgp)) | |
3265 | for (ALL_LIST_ELEMENTS (bgp->peer, node, nnode, peer)) | |
3266 | if (peer->conf_if && !strcmp(peer->conf_if, conf_if) | |
3267 | && ! CHECK_FLAG (peer->sflags, PEER_STATUS_ACCEPT_PEER)) | |
3268 | return peer; | |
3269 | } | |
3270 | return NULL; | |
3271 | } | |
3272 | ||
04b6bdc0 DW |
3273 | struct peer * |
3274 | peer_lookup_by_hostname (struct bgp *bgp, const char *hostname) | |
3275 | { | |
3276 | struct peer *peer; | |
3277 | struct listnode *node, *nnode; | |
3278 | ||
3279 | if (!hostname) | |
3280 | return NULL; | |
3281 | ||
3282 | if (bgp != NULL) | |
3283 | { | |
3284 | for (ALL_LIST_ELEMENTS (bgp->peer, node, nnode, peer)) | |
3285 | if (peer->hostname && !strcmp(peer->hostname, hostname) | |
3286 | && ! CHECK_FLAG (peer->sflags, PEER_STATUS_ACCEPT_PEER)) | |
3287 | return peer; | |
3288 | } | |
3289 | else if (bm->bgp != NULL) | |
3290 | { | |
3291 | struct listnode *bgpnode, *nbgpnode; | |
3292 | ||
3293 | for (ALL_LIST_ELEMENTS (bm->bgp, bgpnode, nbgpnode, bgp)) | |
3294 | for (ALL_LIST_ELEMENTS (bgp->peer, node, nnode, peer)) | |
3295 | if (peer->hostname && !strcmp(peer->hostname, hostname) | |
3296 | && ! CHECK_FLAG (peer->sflags, PEER_STATUS_ACCEPT_PEER)) | |
3297 | return peer; | |
3298 | } | |
3299 | return NULL; | |
3300 | } | |
3301 | ||
718e3744 | 3302 | struct peer * |
3303 | peer_lookup (struct bgp *bgp, union sockunion *su) | |
3304 | { | |
dd793e4a DW |
3305 | struct peer *peer = NULL; |
3306 | struct peer tmp_peer; | |
3307 | ||
3308 | memset(&tmp_peer, 0, sizeof(struct peer)); | |
3309 | ||
3310 | /* | |
3311 | * We do not want to find the doppelganger peer so search for the peer in | |
3312 | * the hash that has PEER_FLAG_CONFIG_NODE | |
3313 | */ | |
3314 | SET_FLAG (tmp_peer.flags, PEER_FLAG_CONFIG_NODE); | |
3315 | ||
3316 | tmp_peer.su = *su; | |
718e3744 | 3317 | |
fc4dc59d | 3318 | if (bgp != NULL) |
fc4dc59d | 3319 | { |
dd793e4a | 3320 | peer = hash_lookup(bgp->peerhash, &tmp_peer); |
fc4dc59d | 3321 | } |
fc4dc59d | 3322 | else if (bm->bgp != NULL) |
718e3744 | 3323 | { |
2158ad23 PJ |
3324 | struct listnode *bgpnode, *nbgpnode; |
3325 | ||
3326 | for (ALL_LIST_ELEMENTS (bm->bgp, bgpnode, nbgpnode, bgp)) | |
dd793e4a | 3327 | { |
ad4cbda1 | 3328 | /* Skip VRFs, this function will not be invoked without an instance |
3329 | * when examining VRFs. | |
6aeb9e78 | 3330 | */ |
ad4cbda1 | 3331 | if (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) |
6aeb9e78 DS |
3332 | continue; |
3333 | ||
dd793e4a DW |
3334 | peer = hash_lookup(bgp->peerhash, &tmp_peer); |
3335 | ||
3336 | if (peer) | |
3337 | break; | |
3338 | } | |
fc4dc59d | 3339 | } |
dd793e4a DW |
3340 | |
3341 | return peer; | |
718e3744 | 3342 | } |
3343 | ||
f14e6fdb DS |
3344 | struct peer * |
3345 | peer_create_bind_dynamic_neighbor (struct bgp *bgp, union sockunion *su, | |
3346 | struct peer_group *group) | |
3347 | { | |
3348 | struct peer *peer; | |
3349 | afi_t afi; | |
3350 | safi_t safi; | |
f14e6fdb DS |
3351 | |
3352 | /* Create peer first; we've already checked group config is valid. */ | |
f813b13b | 3353 | peer = peer_create (su, NULL, bgp, bgp->as, group->conf->as, group->conf->as_type, 0, 0, group); |
f14e6fdb DS |
3354 | if (!peer) |
3355 | return NULL; | |
3356 | ||
3357 | /* Link to group */ | |
f14e6fdb DS |
3358 | peer = peer_lock (peer); |
3359 | listnode_add (group->peer, peer); | |
3360 | ||
a4ed4829 DW |
3361 | peer_group2peer_config_copy(group, peer); |
3362 | ||
f14e6fdb DS |
3363 | /* |
3364 | * Bind peer for all AFs configured for the group. We don't call | |
3365 | * peer_group_bind as that is sub-optimal and does some stuff we don't want. | |
3366 | */ | |
3367 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
3368 | for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++) | |
3369 | { | |
3370 | if (!group->conf->afc[afi][safi]) | |
3371 | continue; | |
f14e6fdb | 3372 | peer->afc[afi][safi] = 1; |
c8560b44 DW |
3373 | |
3374 | if (!peer_af_find(peer, afi, safi)) | |
3375 | peer_af_create(peer, afi, safi); | |
3376 | ||
a4ed4829 | 3377 | peer_group2peer_config_copy_af (group, peer, afi, safi); |
f14e6fdb DS |
3378 | } |
3379 | ||
3380 | /* Mark as dynamic, but also as a "config node" for other things to work. */ | |
3381 | SET_FLAG(peer->flags, PEER_FLAG_DYNAMIC_NEIGHBOR); | |
3382 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); | |
3383 | ||
3384 | return peer; | |
3385 | } | |
3386 | ||
3387 | struct prefix * | |
3388 | peer_group_lookup_dynamic_neighbor_range (struct peer_group * group, | |
3389 | struct prefix * prefix) | |
3390 | { | |
3391 | struct listnode *node, *nnode; | |
3392 | struct prefix *range; | |
3393 | afi_t afi; | |
3394 | ||
3395 | afi = family2afi(prefix->family); | |
3396 | ||
3397 | if (group->listen_range[afi]) | |
3398 | for (ALL_LIST_ELEMENTS (group->listen_range[afi], node, nnode, range)) | |
3399 | if (prefix_match(range, prefix)) | |
3400 | return range; | |
3401 | ||
3402 | return NULL; | |
3403 | } | |
3404 | ||
3405 | struct peer_group * | |
3406 | peer_group_lookup_dynamic_neighbor (struct bgp *bgp, struct prefix *prefix, | |
3407 | struct prefix **listen_range) | |
3408 | { | |
3409 | struct prefix *range = NULL; | |
3410 | struct peer_group *group = NULL; | |
3411 | struct listnode *node, *nnode; | |
3412 | ||
3413 | *listen_range = NULL; | |
3414 | if (bgp != NULL) | |
3415 | { | |
3416 | for (ALL_LIST_ELEMENTS (bgp->group, node, nnode, group)) | |
3417 | if ((range = peer_group_lookup_dynamic_neighbor_range(group, prefix))) | |
3418 | break; | |
3419 | } | |
3420 | else if (bm->bgp != NULL) | |
3421 | { | |
3422 | struct listnode *bgpnode, *nbgpnode; | |
3423 | ||
3424 | for (ALL_LIST_ELEMENTS (bm->bgp, bgpnode, nbgpnode, bgp)) | |
3425 | for (ALL_LIST_ELEMENTS (bgp->group, node, nnode, group)) | |
3426 | if ((range = peer_group_lookup_dynamic_neighbor_range(group, prefix))) | |
2aab8d2b | 3427 | goto found_range; |
f14e6fdb DS |
3428 | } |
3429 | ||
2aab8d2b | 3430 | found_range: |
f14e6fdb DS |
3431 | *listen_range = range; |
3432 | return (group && range) ? group : NULL; | |
3433 | } | |
3434 | ||
3435 | struct peer * | |
3436 | peer_lookup_dynamic_neighbor (struct bgp *bgp, union sockunion *su) | |
3437 | { | |
3438 | struct peer_group *group; | |
3439 | struct bgp *gbgp; | |
3440 | struct peer *peer; | |
40ee54a7 | 3441 | struct prefix prefix; |
f14e6fdb DS |
3442 | struct prefix *listen_range; |
3443 | int dncount; | |
4690c7d7 DS |
3444 | char buf[PREFIX2STR_BUFFER]; |
3445 | char buf1[PREFIX2STR_BUFFER]; | |
f14e6fdb | 3446 | |
40ee54a7 | 3447 | sockunion2hostprefix(su, &prefix); |
f14e6fdb DS |
3448 | |
3449 | /* See if incoming connection matches a configured listen range. */ | |
40ee54a7 | 3450 | group = peer_group_lookup_dynamic_neighbor (bgp, &prefix, &listen_range); |
f14e6fdb DS |
3451 | |
3452 | if (! group) | |
3453 | return NULL; | |
3454 | ||
0299c004 | 3455 | |
f14e6fdb DS |
3456 | gbgp = group->bgp; |
3457 | ||
3458 | if (! gbgp) | |
3459 | return NULL; | |
3460 | ||
40ee54a7 | 3461 | prefix2str(&prefix, buf, sizeof(buf)); |
f14e6fdb DS |
3462 | prefix2str(listen_range, buf1, sizeof(buf1)); |
3463 | ||
3464 | if (bgp_debug_neighbor_events(NULL)) | |
3465 | zlog_debug ("Dynamic Neighbor %s matches group %s listen range %s", | |
3466 | buf, group->name, buf1); | |
3467 | ||
3468 | /* Are we within the listen limit? */ | |
3469 | dncount = gbgp->dynamic_neighbors_count; | |
3470 | ||
3471 | if (dncount >= gbgp->dynamic_neighbors_limit) | |
3472 | { | |
3473 | if (bgp_debug_neighbor_events(NULL)) | |
3474 | zlog_debug ("Dynamic Neighbor %s rejected - at limit %d", | |
3475 | inet_sutop (su, buf), gbgp->dynamic_neighbors_limit); | |
3476 | return NULL; | |
3477 | } | |
3478 | ||
3479 | /* Ensure group is not disabled. */ | |
3480 | if (CHECK_FLAG (group->conf->flags, PEER_FLAG_SHUTDOWN)) | |
3481 | { | |
3482 | if (bgp_debug_neighbor_events(NULL)) | |
3483 | zlog_debug ("Dynamic Neighbor %s rejected - group %s disabled", | |
3484 | buf, group->name); | |
3485 | return NULL; | |
3486 | } | |
3487 | ||
3488 | /* Check that at least one AF is activated for the group. */ | |
3489 | if (!peer_group_af_configured (group)) | |
3490 | { | |
3491 | if (bgp_debug_neighbor_events(NULL)) | |
3492 | zlog_debug ("Dynamic Neighbor %s rejected - no AF activated for group %s", | |
3493 | buf, group->name); | |
3494 | return NULL; | |
3495 | } | |
3496 | ||
3497 | /* Create dynamic peer and bind to associated group. */ | |
3498 | peer = peer_create_bind_dynamic_neighbor (gbgp, su, group); | |
3499 | assert (peer); | |
3500 | ||
3501 | gbgp->dynamic_neighbors_count = ++dncount; | |
3502 | ||
3503 | if (bgp_debug_neighbor_events(peer)) | |
3504 | zlog_debug ("%s Dynamic Neighbor added, group %s count %d", | |
3505 | peer->host, group->name, dncount); | |
3506 | ||
3507 | return peer; | |
3508 | } | |
3509 | ||
3510 | void peer_drop_dynamic_neighbor (struct peer *peer) | |
3511 | { | |
3512 | int dncount = -1; | |
3513 | if (peer->group && peer->group->bgp) | |
3514 | { | |
3515 | dncount = peer->group->bgp->dynamic_neighbors_count; | |
3516 | if (dncount) | |
3517 | peer->group->bgp->dynamic_neighbors_count = --dncount; | |
3518 | } | |
3519 | if (bgp_debug_neighbor_events(peer)) | |
3520 | zlog_debug ("%s dropped from group %s, count %d", | |
3521 | peer->host, peer->group->name, dncount); | |
3522 | } | |
3523 | ||
3524 | ||
718e3744 | 3525 | /* If peer is configured at least one address family return 1. */ |
3526 | int | |
3527 | peer_active (struct peer *peer) | |
3528 | { | |
a80beece DS |
3529 | if (BGP_PEER_SU_UNSPEC(peer)) |
3530 | return 0; | |
718e3744 | 3531 | if (peer->afc[AFI_IP][SAFI_UNICAST] |
3532 | || peer->afc[AFI_IP][SAFI_MULTICAST] | |
3533 | || peer->afc[AFI_IP][SAFI_MPLS_VPN] | |
587ff0fd | 3534 | || peer->afc[AFI_IP][SAFI_ENCAP] |
718e3744 | 3535 | || peer->afc[AFI_IP6][SAFI_UNICAST] |
945c8fe9 | 3536 | || peer->afc[AFI_IP6][SAFI_MULTICAST] |
587ff0fd LB |
3537 | || peer->afc[AFI_IP6][SAFI_MPLS_VPN] |
3538 | || peer->afc[AFI_IP6][SAFI_ENCAP]) | |
718e3744 | 3539 | return 1; |
3540 | return 0; | |
3541 | } | |
3542 | ||
3543 | /* If peer is negotiated at least one address family return 1. */ | |
3544 | int | |
3545 | peer_active_nego (struct peer *peer) | |
3546 | { | |
3547 | if (peer->afc_nego[AFI_IP][SAFI_UNICAST] | |
3548 | || peer->afc_nego[AFI_IP][SAFI_MULTICAST] | |
3549 | || peer->afc_nego[AFI_IP][SAFI_MPLS_VPN] | |
587ff0fd | 3550 | || peer->afc_nego[AFI_IP][SAFI_ENCAP] |
718e3744 | 3551 | || peer->afc_nego[AFI_IP6][SAFI_UNICAST] |
945c8fe9 | 3552 | || peer->afc_nego[AFI_IP6][SAFI_MULTICAST] |
587ff0fd LB |
3553 | || peer->afc_nego[AFI_IP6][SAFI_MPLS_VPN] |
3554 | || peer->afc_nego[AFI_IP6][SAFI_ENCAP]) | |
718e3744 | 3555 | return 1; |
3556 | return 0; | |
3557 | } | |
6b0655a2 | 3558 | |
718e3744 | 3559 | /* peer_flag_change_type. */ |
3560 | enum peer_change_type | |
3561 | { | |
3562 | peer_change_none, | |
3563 | peer_change_reset, | |
3564 | peer_change_reset_in, | |
3565 | peer_change_reset_out, | |
3566 | }; | |
3567 | ||
94f2b392 | 3568 | static void |
718e3744 | 3569 | peer_change_action (struct peer *peer, afi_t afi, safi_t safi, |
3570 | enum peer_change_type type) | |
3571 | { | |
3572 | if (CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) | |
3573 | return; | |
3574 | ||
d9d4ae51 SH |
3575 | if (peer->status != Established) |
3576 | return; | |
3577 | ||
718e3744 | 3578 | if (type == peer_change_reset) |
1ff9a340 DS |
3579 | { |
3580 | /* If we're resetting session, we've to delete both peer struct */ | |
3581 | if ((peer->doppelganger) && (peer->doppelganger->status != Deleted) | |
3582 | && (!CHECK_FLAG(peer->doppelganger->flags, | |
3583 | PEER_FLAG_CONFIG_NODE))) | |
3584 | peer_delete(peer->doppelganger); | |
3585 | ||
3586 | bgp_notify_send (peer, BGP_NOTIFY_CEASE, | |
3587 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
3588 | } | |
718e3744 | 3589 | else if (type == peer_change_reset_in) |
3590 | { | |
3591 | if (CHECK_FLAG (peer->cap, PEER_CAP_REFRESH_OLD_RCV) | |
3592 | || CHECK_FLAG (peer->cap, PEER_CAP_REFRESH_NEW_RCV)) | |
3593 | bgp_route_refresh_send (peer, afi, safi, 0, 0, 0); | |
3594 | else | |
1ff9a340 DS |
3595 | { |
3596 | if ((peer->doppelganger) && (peer->doppelganger->status != Deleted) | |
3597 | && (!CHECK_FLAG(peer->doppelganger->flags, | |
3598 | PEER_FLAG_CONFIG_NODE))) | |
3599 | peer_delete(peer->doppelganger); | |
3600 | ||
3601 | bgp_notify_send (peer, BGP_NOTIFY_CEASE, | |
3602 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
3603 | } | |
718e3744 | 3604 | } |
3605 | else if (type == peer_change_reset_out) | |
3f9c7369 DS |
3606 | { |
3607 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
3608 | bgp_announce_route (peer, afi, safi); | |
3609 | } | |
718e3744 | 3610 | } |
3611 | ||
3612 | struct peer_flag_action | |
3613 | { | |
3614 | /* Peer's flag. */ | |
3615 | u_int32_t flag; | |
3616 | ||
3617 | /* This flag can be set for peer-group member. */ | |
3618 | u_char not_for_member; | |
3619 | ||
3620 | /* Action when the flag is changed. */ | |
3621 | enum peer_change_type type; | |
e0701b79 | 3622 | |
3623 | /* Peer down cause */ | |
3624 | u_char peer_down; | |
718e3744 | 3625 | }; |
3626 | ||
03621955 | 3627 | static const struct peer_flag_action peer_flag_action_list[] = |
718e3744 | 3628 | { |
3629 | { PEER_FLAG_PASSIVE, 0, peer_change_reset }, | |
3630 | { PEER_FLAG_SHUTDOWN, 0, peer_change_reset }, | |
3631 | { PEER_FLAG_DONT_CAPABILITY, 0, peer_change_none }, | |
3632 | { PEER_FLAG_OVERRIDE_CAPABILITY, 0, peer_change_none }, | |
3633 | { PEER_FLAG_STRICT_CAP_MATCH, 0, peer_change_none }, | |
718e3744 | 3634 | { PEER_FLAG_DYNAMIC_CAPABILITY, 0, peer_change_reset }, |
6ffd2079 | 3635 | { PEER_FLAG_DISABLE_CONNECTED_CHECK, 0, peer_change_reset }, |
8a92a8a0 | 3636 | { PEER_FLAG_CAPABILITY_ENHE, 0, peer_change_reset }, |
718e3744 | 3637 | { 0, 0, 0 } |
3638 | }; | |
3639 | ||
03621955 | 3640 | static const struct peer_flag_action peer_af_flag_action_list[] = |
718e3744 | 3641 | { |
718e3744 | 3642 | { PEER_FLAG_SEND_COMMUNITY, 1, peer_change_reset_out }, |
3643 | { PEER_FLAG_SEND_EXT_COMMUNITY, 1, peer_change_reset_out }, | |
adbac85e | 3644 | { PEER_FLAG_NEXTHOP_SELF, 1, peer_change_reset_out }, |
718e3744 | 3645 | { PEER_FLAG_REFLECTOR_CLIENT, 1, peer_change_reset }, |
3646 | { PEER_FLAG_RSERVER_CLIENT, 1, peer_change_reset }, | |
adbac85e | 3647 | { PEER_FLAG_SOFT_RECONFIG, 0, peer_change_reset_in }, |
718e3744 | 3648 | { PEER_FLAG_AS_PATH_UNCHANGED, 1, peer_change_reset_out }, |
3649 | { PEER_FLAG_NEXTHOP_UNCHANGED, 1, peer_change_reset_out }, | |
3650 | { PEER_FLAG_MED_UNCHANGED, 1, peer_change_reset_out }, | |
adbac85e | 3651 | // PEER_FLAG_DEFAULT_ORIGINATE |
718e3744 | 3652 | { PEER_FLAG_REMOVE_PRIVATE_AS, 1, peer_change_reset_out }, |
3653 | { PEER_FLAG_ALLOWAS_IN, 0, peer_change_reset_in }, | |
3654 | { PEER_FLAG_ORF_PREFIX_SM, 1, peer_change_reset }, | |
3655 | { PEER_FLAG_ORF_PREFIX_RM, 1, peer_change_reset }, | |
adbac85e DW |
3656 | // PEER_FLAG_MAX_PREFIX |
3657 | // PEER_FLAG_MAX_PREFIX_WARNING | |
fee0f4c6 | 3658 | { PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED, 0, peer_change_reset_out }, |
a538debe | 3659 | { PEER_FLAG_FORCE_NEXTHOP_SELF, 1, peer_change_reset_out }, |
adbac85e DW |
3660 | { PEER_FLAG_REMOVE_PRIVATE_AS_ALL, 1, peer_change_reset_out }, |
3661 | { PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE,1, peer_change_reset_out }, | |
c7122e14 | 3662 | { PEER_FLAG_AS_OVERRIDE, 1, peer_change_reset_out }, |
88b8ed8d | 3663 | { PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE,1, peer_change_reset_out }, |
adbac85e | 3664 | { PEER_FLAG_ADDPATH_TX_ALL_PATHS, 1, peer_change_reset }, |
06370dac | 3665 | { PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS, 1, peer_change_reset }, |
718e3744 | 3666 | { 0, 0, 0 } |
3667 | }; | |
3668 | ||
3669 | /* Proper action set. */ | |
94f2b392 | 3670 | static int |
03621955 | 3671 | peer_flag_action_set (const struct peer_flag_action *action_list, int size, |
718e3744 | 3672 | struct peer_flag_action *action, u_int32_t flag) |
3673 | { | |
3674 | int i; | |
3675 | int found = 0; | |
3676 | int reset_in = 0; | |
3677 | int reset_out = 0; | |
03621955 | 3678 | const struct peer_flag_action *match = NULL; |
718e3744 | 3679 | |
3680 | /* Check peer's frag action. */ | |
3681 | for (i = 0; i < size; i++) | |
3682 | { | |
3683 | match = &action_list[i]; | |
3684 | ||
3685 | if (match->flag == 0) | |
3686 | break; | |
3687 | ||
3688 | if (match->flag & flag) | |
3689 | { | |
3690 | found = 1; | |
3691 | ||
3692 | if (match->type == peer_change_reset_in) | |
3693 | reset_in = 1; | |
3694 | if (match->type == peer_change_reset_out) | |
3695 | reset_out = 1; | |
3696 | if (match->type == peer_change_reset) | |
3697 | { | |
3698 | reset_in = 1; | |
3699 | reset_out = 1; | |
3700 | } | |
3701 | if (match->not_for_member) | |
3702 | action->not_for_member = 1; | |
3703 | } | |
3704 | } | |
3705 | ||
3706 | /* Set peer clear type. */ | |
3707 | if (reset_in && reset_out) | |
3708 | action->type = peer_change_reset; | |
3709 | else if (reset_in) | |
3710 | action->type = peer_change_reset_in; | |
3711 | else if (reset_out) | |
3712 | action->type = peer_change_reset_out; | |
3713 | else | |
3714 | action->type = peer_change_none; | |
3715 | ||
3716 | return found; | |
3717 | } | |
3718 | ||
94f2b392 | 3719 | static void |
718e3744 | 3720 | peer_flag_modify_action (struct peer *peer, u_int32_t flag) |
3721 | { | |
3722 | if (flag == PEER_FLAG_SHUTDOWN) | |
3723 | { | |
3724 | if (CHECK_FLAG (peer->flags, flag)) | |
3725 | { | |
93406d87 | 3726 | if (CHECK_FLAG (peer->sflags, PEER_STATUS_NSF_WAIT)) |
3727 | peer_nsf_stop (peer); | |
3728 | ||
0a486e5f | 3729 | UNSET_FLAG (peer->sflags, PEER_STATUS_PREFIX_OVERFLOW); |
3730 | if (peer->t_pmax_restart) | |
3731 | { | |
3732 | BGP_TIMER_OFF (peer->t_pmax_restart); | |
16286195 | 3733 | if (bgp_debug_neighbor_events(peer)) |
0a486e5f | 3734 | zlog_debug ("%s Maximum-prefix restart timer canceled", |
3735 | peer->host); | |
3736 | } | |
3737 | ||
1ff9a340 DS |
3738 | if (CHECK_FLAG (peer->sflags, PEER_STATUS_NSF_WAIT)) |
3739 | peer_nsf_stop (peer); | |
93406d87 | 3740 | |
6aa136f1 | 3741 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
718e3744 | 3742 | bgp_notify_send (peer, BGP_NOTIFY_CEASE, |
3743 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN); | |
3744 | else | |
1ff9a340 | 3745 | bgp_session_reset(peer); |
718e3744 | 3746 | } |
3747 | else | |
3748 | { | |
3749 | peer->v_start = BGP_INIT_START_TIMER; | |
3750 | BGP_EVENT_ADD (peer, BGP_Stop); | |
3751 | } | |
3752 | } | |
6aa136f1 | 3753 | else if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
718e3744 | 3754 | { |
c9502438 | 3755 | if (flag == PEER_FLAG_DYNAMIC_CAPABILITY) |
3756 | peer->last_reset = PEER_DOWN_CAPABILITY_CHANGE; | |
3757 | else if (flag == PEER_FLAG_PASSIVE) | |
3758 | peer->last_reset = PEER_DOWN_PASSIVE_CHANGE; | |
6ffd2079 | 3759 | else if (flag == PEER_FLAG_DISABLE_CONNECTED_CHECK) |
c9502438 | 3760 | peer->last_reset = PEER_DOWN_MULTIHOP_CHANGE; |
e0701b79 | 3761 | |
c9502438 | 3762 | bgp_notify_send (peer, BGP_NOTIFY_CEASE, |
3763 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
718e3744 | 3764 | } |
3765 | else | |
1ff9a340 | 3766 | bgp_session_reset(peer); |
718e3744 | 3767 | } |
3768 | ||
3769 | /* Change specified peer flag. */ | |
94f2b392 | 3770 | static int |
718e3744 | 3771 | peer_flag_modify (struct peer *peer, u_int32_t flag, int set) |
3772 | { | |
3773 | int found; | |
3774 | int size; | |
3775 | struct peer_group *group; | |
a4ed4829 | 3776 | struct peer *tmp_peer; |
1eb8ef25 | 3777 | struct listnode *node, *nnode; |
718e3744 | 3778 | struct peer_flag_action action; |
3779 | ||
3780 | memset (&action, 0, sizeof (struct peer_flag_action)); | |
3781 | size = sizeof peer_flag_action_list / sizeof (struct peer_flag_action); | |
3782 | ||
3783 | found = peer_flag_action_set (peer_flag_action_list, size, &action, flag); | |
3784 | ||
3785 | /* No flag action is found. */ | |
3786 | if (! found) | |
3787 | return BGP_ERR_INVALID_FLAG; | |
3788 | ||
718e3744 | 3789 | /* When unset the peer-group member's flag we have to check |
3790 | peer-group configuration. */ | |
3791 | if (! set && peer_group_active (peer)) | |
3792 | if (CHECK_FLAG (peer->group->conf->flags, flag)) | |
3793 | { | |
3794 | if (flag == PEER_FLAG_SHUTDOWN) | |
3795 | return BGP_ERR_PEER_GROUP_SHUTDOWN; | |
718e3744 | 3796 | } |
3797 | ||
3798 | /* Flag conflict check. */ | |
3799 | if (set | |
3800 | && CHECK_FLAG (peer->flags | flag, PEER_FLAG_STRICT_CAP_MATCH) | |
3801 | && CHECK_FLAG (peer->flags | flag, PEER_FLAG_OVERRIDE_CAPABILITY)) | |
3802 | return BGP_ERR_PEER_FLAG_CONFLICT; | |
3803 | ||
3804 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) | |
3805 | { | |
3806 | if (set && CHECK_FLAG (peer->flags, flag) == flag) | |
3807 | return 0; | |
3808 | if (! set && ! CHECK_FLAG (peer->flags, flag)) | |
3809 | return 0; | |
3810 | } | |
3811 | ||
3812 | if (set) | |
3813 | SET_FLAG (peer->flags, flag); | |
3814 | else | |
3815 | UNSET_FLAG (peer->flags, flag); | |
3816 | ||
3817 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) | |
3818 | { | |
3819 | if (action.type == peer_change_reset) | |
3820 | peer_flag_modify_action (peer, flag); | |
3821 | ||
3822 | return 0; | |
3823 | } | |
3824 | ||
3825 | /* peer-group member updates. */ | |
3826 | group = peer->group; | |
3827 | ||
a4ed4829 | 3828 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, tmp_peer)) |
718e3744 | 3829 | { |
a4ed4829 | 3830 | |
1a79ce38 | 3831 | if (set && CHECK_FLAG (tmp_peer->flags, flag) == flag) |
718e3744 | 3832 | continue; |
3833 | ||
1a79ce38 | 3834 | if (! set && ! CHECK_FLAG (tmp_peer->flags, flag)) |
718e3744 | 3835 | continue; |
3836 | ||
3837 | if (set) | |
a4ed4829 | 3838 | SET_FLAG (tmp_peer->flags, flag); |
718e3744 | 3839 | else |
a4ed4829 | 3840 | UNSET_FLAG (tmp_peer->flags, flag); |
718e3744 | 3841 | |
3842 | if (action.type == peer_change_reset) | |
a4ed4829 | 3843 | peer_flag_modify_action (tmp_peer, flag); |
718e3744 | 3844 | } |
3845 | return 0; | |
3846 | } | |
3847 | ||
3848 | int | |
3849 | peer_flag_set (struct peer *peer, u_int32_t flag) | |
3850 | { | |
3851 | return peer_flag_modify (peer, flag, 1); | |
3852 | } | |
3853 | ||
3854 | int | |
3855 | peer_flag_unset (struct peer *peer, u_int32_t flag) | |
3856 | { | |
3857 | return peer_flag_modify (peer, flag, 0); | |
3858 | } | |
3859 | ||
94f2b392 | 3860 | static int |
718e3744 | 3861 | peer_af_flag_modify (struct peer *peer, afi_t afi, safi_t safi, u_int32_t flag, |
3862 | int set) | |
3863 | { | |
3864 | int found; | |
3865 | int size; | |
1eb8ef25 | 3866 | struct listnode *node, *nnode; |
718e3744 | 3867 | struct peer_group *group; |
3868 | struct peer_flag_action action; | |
adbac85e DW |
3869 | struct peer *tmp_peer; |
3870 | struct bgp *bgp; | |
3871 | int addpath_tx_used; | |
718e3744 | 3872 | |
3873 | memset (&action, 0, sizeof (struct peer_flag_action)); | |
3874 | size = sizeof peer_af_flag_action_list / sizeof (struct peer_flag_action); | |
3875 | ||
3876 | found = peer_flag_action_set (peer_af_flag_action_list, size, &action, flag); | |
3877 | ||
3878 | /* No flag action is found. */ | |
3879 | if (! found) | |
3880 | return BGP_ERR_INVALID_FLAG; | |
3881 | ||
400b1fad | 3882 | /* Special check for reflector client. */ |
718e3744 | 3883 | if (flag & PEER_FLAG_REFLECTOR_CLIENT |
3884 | && peer_sort (peer) != BGP_PEER_IBGP) | |
3885 | return BGP_ERR_NOT_INTERNAL_PEER; | |
3886 | ||
400b1fad | 3887 | /* Special check for remove-private-AS. */ |
718e3744 | 3888 | if (flag & PEER_FLAG_REMOVE_PRIVATE_AS |
3889 | && peer_sort (peer) == BGP_PEER_IBGP) | |
3890 | return BGP_ERR_REMOVE_PRIVATE_AS; | |
3891 | ||
c7122e14 DS |
3892 | /* as-override is not allowed for IBGP peers */ |
3893 | if (flag & PEER_FLAG_AS_OVERRIDE | |
3894 | && peer_sort (peer) == BGP_PEER_IBGP) | |
3895 | return BGP_ERR_AS_OVERRIDE; | |
3896 | ||
718e3744 | 3897 | /* When current flag configuration is same as requested one. */ |
3898 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) | |
3899 | { | |
3900 | if (set && CHECK_FLAG (peer->af_flags[afi][safi], flag) == flag) | |
3901 | return 0; | |
3902 | if (! set && ! CHECK_FLAG (peer->af_flags[afi][safi], flag)) | |
3903 | return 0; | |
3904 | } | |
3905 | ||
3906 | if (set) | |
3907 | SET_FLAG (peer->af_flags[afi][safi], flag); | |
3908 | else | |
3909 | UNSET_FLAG (peer->af_flags[afi][safi], flag); | |
3910 | ||
3911 | /* Execute action when peer is established. */ | |
3912 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP) | |
3913 | && peer->status == Established) | |
3914 | { | |
3915 | if (! set && flag == PEER_FLAG_SOFT_RECONFIG) | |
3916 | bgp_clear_adj_in (peer, afi, safi); | |
3917 | else | |
e0701b79 | 3918 | { |
3919 | if (flag == PEER_FLAG_REFLECTOR_CLIENT) | |
3920 | peer->last_reset = PEER_DOWN_RR_CLIENT_CHANGE; | |
3921 | else if (flag == PEER_FLAG_RSERVER_CLIENT) | |
3922 | peer->last_reset = PEER_DOWN_RS_CLIENT_CHANGE; | |
3923 | else if (flag == PEER_FLAG_ORF_PREFIX_SM) | |
3924 | peer->last_reset = PEER_DOWN_CAPABILITY_CHANGE; | |
3925 | else if (flag == PEER_FLAG_ORF_PREFIX_RM) | |
3926 | peer->last_reset = PEER_DOWN_CAPABILITY_CHANGE; | |
3927 | ||
3928 | peer_change_action (peer, afi, safi, action.type); | |
3929 | } | |
3930 | ||
718e3744 | 3931 | } |
3932 | ||
3933 | /* Peer group member updates. */ | |
3934 | if (CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) | |
3935 | { | |
3936 | group = peer->group; | |
3937 | ||
adbac85e | 3938 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, tmp_peer)) |
718e3744 | 3939 | { |
adbac85e | 3940 | if (set && CHECK_FLAG (tmp_peer->af_flags[afi][safi], flag) == flag) |
718e3744 | 3941 | continue; |
3942 | ||
adbac85e | 3943 | if (! set && ! CHECK_FLAG (tmp_peer->af_flags[afi][safi], flag)) |
718e3744 | 3944 | continue; |
3945 | ||
3946 | if (set) | |
adbac85e | 3947 | SET_FLAG (tmp_peer->af_flags[afi][safi], flag); |
718e3744 | 3948 | else |
adbac85e | 3949 | UNSET_FLAG (tmp_peer->af_flags[afi][safi], flag); |
718e3744 | 3950 | |
adbac85e | 3951 | if (tmp_peer->status == Established) |
718e3744 | 3952 | { |
3953 | if (! set && flag == PEER_FLAG_SOFT_RECONFIG) | |
adbac85e | 3954 | bgp_clear_adj_in (tmp_peer, afi, safi); |
718e3744 | 3955 | else |
e0701b79 | 3956 | { |
3957 | if (flag == PEER_FLAG_REFLECTOR_CLIENT) | |
adbac85e | 3958 | tmp_peer->last_reset = PEER_DOWN_RR_CLIENT_CHANGE; |
e0701b79 | 3959 | else if (flag == PEER_FLAG_RSERVER_CLIENT) |
adbac85e | 3960 | tmp_peer->last_reset = PEER_DOWN_RS_CLIENT_CHANGE; |
e0701b79 | 3961 | else if (flag == PEER_FLAG_ORF_PREFIX_SM) |
adbac85e | 3962 | tmp_peer->last_reset = PEER_DOWN_CAPABILITY_CHANGE; |
e0701b79 | 3963 | else if (flag == PEER_FLAG_ORF_PREFIX_RM) |
adbac85e | 3964 | tmp_peer->last_reset = PEER_DOWN_CAPABILITY_CHANGE; |
e0701b79 | 3965 | |
adbac85e | 3966 | peer_change_action (tmp_peer, afi, safi, action.type); |
e0701b79 | 3967 | } |
718e3744 | 3968 | } |
3969 | } | |
3970 | } | |
adbac85e DW |
3971 | |
3972 | /* Track if addpath TX is in use */ | |
06370dac | 3973 | if (flag & (PEER_FLAG_ADDPATH_TX_ALL_PATHS|PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS)) |
adbac85e DW |
3974 | { |
3975 | bgp = peer->bgp; | |
3976 | addpath_tx_used = 0; | |
3977 | ||
3978 | if (set) | |
3979 | { | |
3980 | addpath_tx_used = 1; | |
06370dac DW |
3981 | |
3982 | if (flag & PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS) | |
3983 | { | |
3984 | if (!bgp_flag_check (bgp, BGP_FLAG_DETERMINISTIC_MED)) | |
3985 | { | |
3986 | zlog_warn("%s: enabling bgp deterministic-med, this is required"\ | |
3987 | " for addpath-tx-bestpath-per-AS", | |
3988 | peer->host); | |
3989 | bgp_flag_set (bgp, BGP_FLAG_DETERMINISTIC_MED); | |
3990 | bgp_recalculate_all_bestpaths (bgp); | |
3991 | } | |
3992 | } | |
adbac85e DW |
3993 | } |
3994 | else | |
3995 | { | |
3996 | for (ALL_LIST_ELEMENTS (bgp->peer, node, nnode, tmp_peer)) | |
3997 | { | |
06370dac DW |
3998 | if (CHECK_FLAG (tmp_peer->af_flags[afi][safi], PEER_FLAG_ADDPATH_TX_ALL_PATHS) || |
3999 | CHECK_FLAG (tmp_peer->af_flags[afi][safi], PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS)) | |
adbac85e DW |
4000 | { |
4001 | addpath_tx_used = 1; | |
4002 | break; | |
4003 | } | |
4004 | } | |
4005 | } | |
4006 | ||
4007 | bgp->addpath_tx_used[afi][safi] = addpath_tx_used; | |
4008 | } | |
4009 | ||
718e3744 | 4010 | return 0; |
4011 | } | |
4012 | ||
4013 | int | |
4014 | peer_af_flag_set (struct peer *peer, afi_t afi, safi_t safi, u_int32_t flag) | |
4015 | { | |
4016 | return peer_af_flag_modify (peer, afi, safi, flag, 1); | |
4017 | } | |
4018 | ||
4019 | int | |
4020 | peer_af_flag_unset (struct peer *peer, afi_t afi, safi_t safi, u_int32_t flag) | |
4021 | { | |
4022 | return peer_af_flag_modify (peer, afi, safi, flag, 0); | |
4023 | } | |
6b0655a2 | 4024 | |
718e3744 | 4025 | /* EBGP multihop configuration. */ |
4026 | int | |
4027 | peer_ebgp_multihop_set (struct peer *peer, int ttl) | |
4028 | { | |
4029 | struct peer_group *group; | |
1eb8ef25 | 4030 | struct listnode *node, *nnode; |
fa411a21 | 4031 | struct peer *peer1; |
718e3744 | 4032 | |
a80beece | 4033 | if (peer->sort == BGP_PEER_IBGP || peer->conf_if) |
718e3744 | 4034 | return 0; |
4035 | ||
fa411a21 NH |
4036 | /* see comment in peer_ttl_security_hops_set() */ |
4037 | if (ttl != MAXTTL) | |
4038 | { | |
4039 | if (CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) | |
4040 | { | |
4041 | group = peer->group; | |
4042 | if (group->conf->gtsm_hops != 0) | |
4043 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
4044 | ||
4045 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, peer1)) | |
4046 | { | |
6d85b15b | 4047 | if (peer1->sort == BGP_PEER_IBGP) |
fa411a21 NH |
4048 | continue; |
4049 | ||
4050 | if (peer1->gtsm_hops != 0) | |
4051 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
4052 | } | |
4053 | } | |
4054 | else | |
4055 | { | |
4056 | if (peer->gtsm_hops != 0) | |
4057 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
4058 | } | |
4059 | } | |
4060 | ||
718e3744 | 4061 | peer->ttl = ttl; |
4062 | ||
4063 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) | |
4064 | { | |
6d85b15b | 4065 | if (peer->fd >= 0 && peer->sort != BGP_PEER_IBGP) |
e5cc509c DS |
4066 | { |
4067 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
4068 | bgp_notify_send (peer, BGP_NOTIFY_CEASE, | |
4069 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4070 | else | |
4071 | bgp_session_reset(peer); | |
4072 | } | |
718e3744 | 4073 | } |
4074 | else | |
4075 | { | |
4076 | group = peer->group; | |
1eb8ef25 | 4077 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, peer)) |
eb821189 | 4078 | { |
6d85b15b | 4079 | if (peer->sort == BGP_PEER_IBGP) |
eb821189 | 4080 | continue; |
718e3744 | 4081 | |
eb821189 | 4082 | peer->ttl = group->conf->ttl; |
718e3744 | 4083 | |
e5cc509c DS |
4084 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
4085 | bgp_notify_send (peer, BGP_NOTIFY_CEASE, | |
4086 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4087 | else | |
4088 | bgp_session_reset(peer); | |
eb821189 | 4089 | } |
718e3744 | 4090 | } |
4091 | return 0; | |
4092 | } | |
4093 | ||
4094 | int | |
4095 | peer_ebgp_multihop_unset (struct peer *peer) | |
4096 | { | |
4097 | struct peer_group *group; | |
1eb8ef25 | 4098 | struct listnode *node, *nnode; |
718e3744 | 4099 | |
6d85b15b | 4100 | if (peer->sort == BGP_PEER_IBGP) |
718e3744 | 4101 | return 0; |
4102 | ||
fa411a21 NH |
4103 | if (peer->gtsm_hops != 0 && peer->ttl != MAXTTL) |
4104 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
4105 | ||
718e3744 | 4106 | if (peer_group_active (peer)) |
4107 | peer->ttl = peer->group->conf->ttl; | |
4108 | else | |
4109 | peer->ttl = 1; | |
4110 | ||
4111 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) | |
4112 | { | |
e5cc509c DS |
4113 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
4114 | bgp_notify_send (peer, BGP_NOTIFY_CEASE, | |
4115 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4116 | else | |
4117 | bgp_session_reset(peer); | |
718e3744 | 4118 | } |
4119 | else | |
4120 | { | |
4121 | group = peer->group; | |
1eb8ef25 | 4122 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, peer)) |
eb821189 | 4123 | { |
6d85b15b | 4124 | if (peer->sort == BGP_PEER_IBGP) |
eb821189 | 4125 | continue; |
4126 | ||
4127 | peer->ttl = 1; | |
e5cc509c | 4128 | |
eb821189 | 4129 | if (peer->fd >= 0) |
e5cc509c DS |
4130 | { |
4131 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
4132 | bgp_notify_send (peer, BGP_NOTIFY_CEASE, | |
4133 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4134 | else | |
4135 | bgp_session_reset(peer); | |
4136 | } | |
eb821189 | 4137 | } |
718e3744 | 4138 | } |
4139 | return 0; | |
4140 | } | |
6b0655a2 | 4141 | |
718e3744 | 4142 | /* Neighbor description. */ |
4143 | int | |
4760600f | 4144 | peer_description_set (struct peer *peer, const char *desc) |
718e3744 | 4145 | { |
4146 | if (peer->desc) | |
4147 | XFREE (MTYPE_PEER_DESC, peer->desc); | |
4148 | ||
4149 | peer->desc = XSTRDUP (MTYPE_PEER_DESC, desc); | |
4150 | ||
4151 | return 0; | |
4152 | } | |
4153 | ||
4154 | int | |
4155 | peer_description_unset (struct peer *peer) | |
4156 | { | |
4157 | if (peer->desc) | |
4158 | XFREE (MTYPE_PEER_DESC, peer->desc); | |
4159 | ||
4160 | peer->desc = NULL; | |
4161 | ||
4162 | return 0; | |
4163 | } | |
6b0655a2 | 4164 | |
718e3744 | 4165 | /* Neighbor update-source. */ |
4166 | int | |
fd79ac91 | 4167 | peer_update_source_if_set (struct peer *peer, const char *ifname) |
718e3744 | 4168 | { |
4169 | struct peer_group *group; | |
1eb8ef25 | 4170 | struct listnode *node, *nnode; |
718e3744 | 4171 | |
4172 | if (peer->update_if) | |
4173 | { | |
4174 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP) | |
4175 | && strcmp (peer->update_if, ifname) == 0) | |
4176 | return 0; | |
4177 | ||
4178 | XFREE (MTYPE_PEER_UPDATE_SOURCE, peer->update_if); | |
4179 | peer->update_if = NULL; | |
4180 | } | |
4181 | ||
4182 | if (peer->update_source) | |
4183 | { | |
4184 | sockunion_free (peer->update_source); | |
4185 | peer->update_source = NULL; | |
4186 | } | |
4187 | ||
4188 | peer->update_if = XSTRDUP (MTYPE_PEER_UPDATE_SOURCE, ifname); | |
4189 | ||
4190 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) | |
4191 | { | |
6aa136f1 | 4192 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
e0701b79 | 4193 | { |
4194 | peer->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4195 | bgp_notify_send (peer, BGP_NOTIFY_CEASE, | |
4196 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4197 | } | |
718e3744 | 4198 | else |
1ff9a340 | 4199 | bgp_session_reset(peer); |
718e3744 | 4200 | return 0; |
4201 | } | |
4202 | ||
4203 | /* peer-group member updates. */ | |
4204 | group = peer->group; | |
1eb8ef25 | 4205 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, peer)) |
718e3744 | 4206 | { |
4207 | if (peer->update_if) | |
4208 | { | |
4209 | if (strcmp (peer->update_if, ifname) == 0) | |
4210 | continue; | |
4211 | ||
4212 | XFREE (MTYPE_PEER_UPDATE_SOURCE, peer->update_if); | |
4213 | peer->update_if = NULL; | |
4214 | } | |
4215 | ||
4216 | if (peer->update_source) | |
4217 | { | |
4218 | sockunion_free (peer->update_source); | |
4219 | peer->update_source = NULL; | |
4220 | } | |
4221 | ||
4222 | peer->update_if = XSTRDUP (MTYPE_PEER_UPDATE_SOURCE, ifname); | |
4223 | ||
6aa136f1 | 4224 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
e0701b79 | 4225 | { |
4226 | peer->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4227 | bgp_notify_send (peer, BGP_NOTIFY_CEASE, | |
4228 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4229 | } | |
718e3744 | 4230 | else |
1ff9a340 | 4231 | bgp_session_reset(peer); |
718e3744 | 4232 | } |
4233 | return 0; | |
4234 | } | |
4235 | ||
4236 | int | |
4760600f | 4237 | peer_update_source_addr_set (struct peer *peer, const union sockunion *su) |
718e3744 | 4238 | { |
4239 | struct peer_group *group; | |
1eb8ef25 | 4240 | struct listnode *node, *nnode; |
718e3744 | 4241 | |
4242 | if (peer->update_source) | |
4243 | { | |
4244 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP) | |
4245 | && sockunion_cmp (peer->update_source, su) == 0) | |
4246 | return 0; | |
4247 | sockunion_free (peer->update_source); | |
4248 | peer->update_source = NULL; | |
4249 | } | |
4250 | ||
4251 | if (peer->update_if) | |
4252 | { | |
4253 | XFREE (MTYPE_PEER_UPDATE_SOURCE, peer->update_if); | |
4254 | peer->update_if = NULL; | |
1ff9a340 | 4255 | |
718e3744 | 4256 | } |
4257 | ||
4258 | peer->update_source = sockunion_dup (su); | |
4259 | ||
4260 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) | |
4261 | { | |
6aa136f1 | 4262 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
e0701b79 | 4263 | { |
4264 | peer->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4265 | bgp_notify_send (peer, BGP_NOTIFY_CEASE, | |
4266 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4267 | } | |
718e3744 | 4268 | else |
1ff9a340 | 4269 | bgp_session_reset(peer); |
718e3744 | 4270 | return 0; |
4271 | } | |
4272 | ||
4273 | /* peer-group member updates. */ | |
4274 | group = peer->group; | |
1eb8ef25 | 4275 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, peer)) |
718e3744 | 4276 | { |
4277 | if (peer->update_source) | |
4278 | { | |
4279 | if (sockunion_cmp (peer->update_source, su) == 0) | |
4280 | continue; | |
4281 | sockunion_free (peer->update_source); | |
4282 | peer->update_source = NULL; | |
4283 | } | |
4284 | ||
4285 | if (peer->update_if) | |
4286 | { | |
4287 | XFREE (MTYPE_PEER_UPDATE_SOURCE, peer->update_if); | |
4288 | peer->update_if = NULL; | |
4289 | } | |
4290 | ||
4291 | peer->update_source = sockunion_dup (su); | |
4292 | ||
6aa136f1 | 4293 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
e0701b79 | 4294 | { |
4295 | peer->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4296 | bgp_notify_send (peer, BGP_NOTIFY_CEASE, | |
4297 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4298 | } | |
718e3744 | 4299 | else |
1ff9a340 | 4300 | bgp_session_reset(peer); |
718e3744 | 4301 | } |
4302 | return 0; | |
4303 | } | |
4304 | ||
4305 | int | |
4306 | peer_update_source_unset (struct peer *peer) | |
4307 | { | |
4308 | union sockunion *su; | |
4309 | struct peer_group *group; | |
1eb8ef25 | 4310 | struct listnode *node, *nnode; |
718e3744 | 4311 | |
4312 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP) | |
4313 | && ! peer->update_source | |
4314 | && ! peer->update_if) | |
4315 | return 0; | |
4316 | ||
4317 | if (peer->update_source) | |
4318 | { | |
4319 | sockunion_free (peer->update_source); | |
4320 | peer->update_source = NULL; | |
4321 | } | |
4322 | if (peer->update_if) | |
4323 | { | |
4324 | XFREE (MTYPE_PEER_UPDATE_SOURCE, peer->update_if); | |
4325 | peer->update_if = NULL; | |
4326 | } | |
4327 | ||
4328 | if (peer_group_active (peer)) | |
4329 | { | |
4330 | group = peer->group; | |
4331 | ||
4332 | if (group->conf->update_source) | |
4333 | { | |
4334 | su = sockunion_dup (group->conf->update_source); | |
4335 | peer->update_source = su; | |
4336 | } | |
4337 | else if (group->conf->update_if) | |
4338 | peer->update_if = | |
4339 | XSTRDUP (MTYPE_PEER_UPDATE_SOURCE, group->conf->update_if); | |
4340 | } | |
4341 | ||
4342 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) | |
4343 | { | |
6aa136f1 | 4344 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
e0701b79 | 4345 | { |
4346 | peer->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4347 | bgp_notify_send (peer, BGP_NOTIFY_CEASE, | |
4348 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4349 | } | |
718e3744 | 4350 | else |
1ff9a340 | 4351 | bgp_session_reset(peer); |
718e3744 | 4352 | return 0; |
4353 | } | |
4354 | ||
4355 | /* peer-group member updates. */ | |
4356 | group = peer->group; | |
1eb8ef25 | 4357 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, peer)) |
718e3744 | 4358 | { |
4359 | if (! peer->update_source && ! peer->update_if) | |
4360 | continue; | |
4361 | ||
4362 | if (peer->update_source) | |
4363 | { | |
4364 | sockunion_free (peer->update_source); | |
4365 | peer->update_source = NULL; | |
4366 | } | |
4367 | ||
4368 | if (peer->update_if) | |
4369 | { | |
4370 | XFREE (MTYPE_PEER_UPDATE_SOURCE, peer->update_if); | |
4371 | peer->update_if = NULL; | |
4372 | } | |
4373 | ||
6aa136f1 | 4374 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
e0701b79 | 4375 | { |
4376 | peer->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4377 | bgp_notify_send (peer, BGP_NOTIFY_CEASE, | |
4378 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4379 | } | |
718e3744 | 4380 | else |
1ff9a340 | 4381 | bgp_session_reset(peer); |
718e3744 | 4382 | } |
4383 | return 0; | |
4384 | } | |
6b0655a2 | 4385 | |
718e3744 | 4386 | int |
4387 | peer_default_originate_set (struct peer *peer, afi_t afi, safi_t safi, | |
fd79ac91 | 4388 | const char *rmap) |
718e3744 | 4389 | { |
4390 | struct peer_group *group; | |
1eb8ef25 | 4391 | struct listnode *node, *nnode; |
718e3744 | 4392 | |
718e3744 | 4393 | if (! CHECK_FLAG (peer->af_flags[afi][safi], PEER_FLAG_DEFAULT_ORIGINATE) |
4394 | || (rmap && ! peer->default_rmap[afi][safi].name) | |
4395 | || (rmap && strcmp (rmap, peer->default_rmap[afi][safi].name) != 0)) | |
4396 | { | |
4397 | SET_FLAG (peer->af_flags[afi][safi], PEER_FLAG_DEFAULT_ORIGINATE); | |
4398 | ||
4399 | if (rmap) | |
4400 | { | |
4401 | if (peer->default_rmap[afi][safi].name) | |
6e919709 DS |
4402 | XFREE(MTYPE_ROUTE_MAP_NAME, peer->default_rmap[afi][safi].name); |
4403 | peer->default_rmap[afi][safi].name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, rmap); | |
718e3744 | 4404 | peer->default_rmap[afi][safi].map = route_map_lookup_by_name (rmap); |
4405 | } | |
4406 | } | |
4407 | ||
4408 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) | |
4409 | { | |
3f9c7369 DS |
4410 | if (peer->status == Established && peer->afc_nego[afi][safi]) { |
4411 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
718e3744 | 4412 | bgp_default_originate (peer, afi, safi, 0); |
3f9c7369 DS |
4413 | bgp_announce_route (peer, afi, safi); |
4414 | } | |
718e3744 | 4415 | return 0; |
4416 | } | |
4417 | ||
4418 | /* peer-group member updates. */ | |
4419 | group = peer->group; | |
1eb8ef25 | 4420 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, peer)) |
718e3744 | 4421 | { |
4422 | SET_FLAG (peer->af_flags[afi][safi], PEER_FLAG_DEFAULT_ORIGINATE); | |
4423 | ||
4424 | if (rmap) | |
4425 | { | |
4426 | if (peer->default_rmap[afi][safi].name) | |
6e919709 DS |
4427 | XFREE(MTYPE_ROUTE_MAP_NAME, peer->default_rmap[afi][safi].name); |
4428 | peer->default_rmap[afi][safi].name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, rmap); | |
718e3744 | 4429 | peer->default_rmap[afi][safi].map = route_map_lookup_by_name (rmap); |
4430 | } | |
4431 | ||
3f9c7369 DS |
4432 | if (peer->status == Established && peer->afc_nego[afi][safi]) { |
4433 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
718e3744 | 4434 | bgp_default_originate (peer, afi, safi, 0); |
3f9c7369 DS |
4435 | bgp_announce_route (peer, afi, safi); |
4436 | } | |
718e3744 | 4437 | } |
4438 | return 0; | |
4439 | } | |
4440 | ||
4441 | int | |
4442 | peer_default_originate_unset (struct peer *peer, afi_t afi, safi_t safi) | |
4443 | { | |
4444 | struct peer_group *group; | |
1eb8ef25 | 4445 | struct listnode *node, *nnode; |
718e3744 | 4446 | |
718e3744 | 4447 | if (CHECK_FLAG (peer->af_flags[afi][safi], PEER_FLAG_DEFAULT_ORIGINATE)) |
4448 | { | |
4449 | UNSET_FLAG (peer->af_flags[afi][safi], PEER_FLAG_DEFAULT_ORIGINATE); | |
4450 | ||
4451 | if (peer->default_rmap[afi][safi].name) | |
6e919709 | 4452 | XFREE(MTYPE_ROUTE_MAP_NAME, peer->default_rmap[afi][safi].name); |
718e3744 | 4453 | peer->default_rmap[afi][safi].name = NULL; |
4454 | peer->default_rmap[afi][safi].map = NULL; | |
4455 | } | |
4456 | ||
4457 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) | |
4458 | { | |
3f9c7369 DS |
4459 | if (peer->status == Established && peer->afc_nego[afi][safi]) { |
4460 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
718e3744 | 4461 | bgp_default_originate (peer, afi, safi, 1); |
3f9c7369 DS |
4462 | bgp_announce_route (peer, afi, safi); |
4463 | } | |
718e3744 | 4464 | return 0; |
4465 | } | |
4466 | ||
4467 | /* peer-group member updates. */ | |
4468 | group = peer->group; | |
1eb8ef25 | 4469 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, peer)) |
718e3744 | 4470 | { |
4471 | UNSET_FLAG (peer->af_flags[afi][safi], PEER_FLAG_DEFAULT_ORIGINATE); | |
4472 | ||
4473 | if (peer->default_rmap[afi][safi].name) | |
6e919709 | 4474 | XFREE(MTYPE_ROUTE_MAP_NAME, peer->default_rmap[afi][safi].name); |
718e3744 | 4475 | peer->default_rmap[afi][safi].name = NULL; |
4476 | peer->default_rmap[afi][safi].map = NULL; | |
4477 | ||
3f9c7369 DS |
4478 | if (peer->status == Established && peer->afc_nego[afi][safi]) { |
4479 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
718e3744 | 4480 | bgp_default_originate (peer, afi, safi, 1); |
3f9c7369 DS |
4481 | bgp_announce_route (peer, afi, safi); |
4482 | } | |
718e3744 | 4483 | } |
4484 | return 0; | |
4485 | } | |
6b0655a2 | 4486 | |
718e3744 | 4487 | int |
4488 | peer_port_set (struct peer *peer, u_int16_t port) | |
4489 | { | |
4490 | peer->port = port; | |
4491 | return 0; | |
4492 | } | |
4493 | ||
4494 | int | |
4495 | peer_port_unset (struct peer *peer) | |
4496 | { | |
4497 | peer->port = BGP_PORT_DEFAULT; | |
4498 | return 0; | |
4499 | } | |
6b0655a2 | 4500 | |
718e3744 | 4501 | /* neighbor weight. */ |
1f9a9fff | 4502 | int |
718e3744 | 4503 | peer_weight_set (struct peer *peer, u_int16_t weight) |
4504 | { | |
4505 | struct peer_group *group; | |
1eb8ef25 | 4506 | struct listnode *node, *nnode; |
718e3744 | 4507 | |
4508 | SET_FLAG (peer->config, PEER_CONFIG_WEIGHT); | |
4509 | peer->weight = weight; | |
4510 | ||
4511 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) | |
1f9a9fff | 4512 | return 0; |
718e3744 | 4513 | |
4514 | /* peer-group member updates. */ | |
4515 | group = peer->group; | |
1eb8ef25 | 4516 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, peer)) |
718e3744 | 4517 | { |
4518 | peer->weight = group->conf->weight; | |
4519 | } | |
1f9a9fff | 4520 | return 1; |
718e3744 | 4521 | } |
4522 | ||
1f9a9fff | 4523 | int |
718e3744 | 4524 | peer_weight_unset (struct peer *peer) |
4525 | { | |
4526 | struct peer_group *group; | |
1eb8ef25 | 4527 | struct listnode *node, *nnode; |
718e3744 | 4528 | |
4529 | /* Set default weight. */ | |
4530 | if (peer_group_active (peer)) | |
4531 | peer->weight = peer->group->conf->weight; | |
4532 | else | |
4533 | peer->weight = 0; | |
4534 | ||
4535 | UNSET_FLAG (peer->config, PEER_CONFIG_WEIGHT); | |
4536 | ||
4537 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) | |
1f9a9fff | 4538 | return 0; |
718e3744 | 4539 | |
4540 | /* peer-group member updates. */ | |
4541 | group = peer->group; | |
1eb8ef25 | 4542 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, peer)) |
718e3744 | 4543 | { |
4544 | peer->weight = 0; | |
4545 | } | |
1f9a9fff | 4546 | return 1; |
718e3744 | 4547 | } |
6b0655a2 | 4548 | |
718e3744 | 4549 | int |
4550 | peer_timers_set (struct peer *peer, u_int32_t keepalive, u_int32_t holdtime) | |
4551 | { | |
4552 | struct peer_group *group; | |
1eb8ef25 | 4553 | struct listnode *node, *nnode; |
718e3744 | 4554 | |
718e3744 | 4555 | /* keepalive value check. */ |
4556 | if (keepalive > 65535) | |
4557 | return BGP_ERR_INVALID_VALUE; | |
4558 | ||
4559 | /* Holdtime value check. */ | |
4560 | if (holdtime > 65535) | |
4561 | return BGP_ERR_INVALID_VALUE; | |
4562 | ||
4563 | /* Holdtime value must be either 0 or greater than 3. */ | |
4564 | if (holdtime < 3 && holdtime != 0) | |
4565 | return BGP_ERR_INVALID_VALUE; | |
4566 | ||
4567 | /* Set value to the configuration. */ | |
4568 | SET_FLAG (peer->config, PEER_CONFIG_TIMER); | |
4569 | peer->holdtime = holdtime; | |
4570 | peer->keepalive = (keepalive < holdtime / 3 ? keepalive : holdtime / 3); | |
4571 | ||
4572 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) | |
4573 | return 0; | |
4574 | ||
4575 | /* peer-group member updates. */ | |
4576 | group = peer->group; | |
1eb8ef25 | 4577 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, peer)) |
718e3744 | 4578 | { |
4579 | SET_FLAG (peer->config, PEER_CONFIG_TIMER); | |
4580 | peer->holdtime = group->conf->holdtime; | |
4581 | peer->keepalive = group->conf->keepalive; | |
4582 | } | |
4583 | return 0; | |
4584 | } | |
4585 | ||
4586 | int | |
4587 | peer_timers_unset (struct peer *peer) | |
4588 | { | |
4589 | struct peer_group *group; | |
1eb8ef25 | 4590 | struct listnode *node, *nnode; |
718e3744 | 4591 | |
718e3744 | 4592 | /* Clear configuration. */ |
4593 | UNSET_FLAG (peer->config, PEER_CONFIG_TIMER); | |
4594 | peer->keepalive = 0; | |
4595 | peer->holdtime = 0; | |
4596 | ||
4597 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) | |
4598 | return 0; | |
4599 | ||
4600 | /* peer-group member updates. */ | |
4601 | group = peer->group; | |
1eb8ef25 | 4602 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, peer)) |
718e3744 | 4603 | { |
4604 | UNSET_FLAG (peer->config, PEER_CONFIG_TIMER); | |
4605 | peer->holdtime = 0; | |
4606 | peer->keepalive = 0; | |
4607 | } | |
4608 | ||
4609 | return 0; | |
4610 | } | |
6b0655a2 | 4611 | |
718e3744 | 4612 | int |
4613 | peer_timers_connect_set (struct peer *peer, u_int32_t connect) | |
4614 | { | |
966f821c DS |
4615 | struct peer_group *group; |
4616 | struct listnode *node, *nnode; | |
4617 | ||
718e3744 | 4618 | if (connect > 65535) |
4619 | return BGP_ERR_INVALID_VALUE; | |
4620 | ||
4621 | /* Set value to the configuration. */ | |
4622 | SET_FLAG (peer->config, PEER_CONFIG_CONNECT); | |
4623 | peer->connect = connect; | |
4624 | ||
4625 | /* Set value to timer setting. */ | |
4626 | peer->v_connect = connect; | |
4627 | ||
966f821c DS |
4628 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) |
4629 | return 0; | |
4630 | ||
4631 | /* peer-group member updates. */ | |
4632 | group = peer->group; | |
4633 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, peer)) | |
4634 | { | |
4635 | SET_FLAG (peer->config, PEER_CONFIG_CONNECT); | |
4636 | peer->connect = connect; | |
4637 | peer->v_connect = connect; | |
4638 | } | |
718e3744 | 4639 | return 0; |
4640 | } | |
4641 | ||
4642 | int | |
4643 | peer_timers_connect_unset (struct peer *peer) | |
4644 | { | |
966f821c DS |
4645 | struct peer_group *group; |
4646 | struct listnode *node, *nnode; | |
4647 | ||
718e3744 | 4648 | /* Clear configuration. */ |
4649 | UNSET_FLAG (peer->config, PEER_CONFIG_CONNECT); | |
4650 | peer->connect = 0; | |
4651 | ||
4652 | /* Set timer setting to default value. */ | |
4653 | peer->v_connect = BGP_DEFAULT_CONNECT_RETRY; | |
4654 | ||
966f821c DS |
4655 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) |
4656 | return 0; | |
4657 | ||
4658 | /* peer-group member updates. */ | |
4659 | group = peer->group; | |
4660 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, peer)) | |
4661 | { | |
4662 | UNSET_FLAG (peer->config, PEER_CONFIG_CONNECT); | |
4663 | peer->connect = 0; | |
4664 | peer->v_connect = BGP_DEFAULT_CONNECT_RETRY; | |
4665 | } | |
718e3744 | 4666 | return 0; |
4667 | } | |
6b0655a2 | 4668 | |
718e3744 | 4669 | int |
4670 | peer_advertise_interval_set (struct peer *peer, u_int32_t routeadv) | |
4671 | { | |
966f821c DS |
4672 | struct peer_group *group; |
4673 | struct listnode *node, *nnode; | |
4674 | ||
718e3744 | 4675 | if (routeadv > 600) |
4676 | return BGP_ERR_INVALID_VALUE; | |
4677 | ||
4678 | SET_FLAG (peer->config, PEER_CONFIG_ROUTEADV); | |
4679 | peer->routeadv = routeadv; | |
4680 | peer->v_routeadv = routeadv; | |
4681 | ||
3f9c7369 DS |
4682 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) { |
4683 | update_group_adjust_peer_afs (peer); | |
4684 | if (peer->status == Established) | |
4685 | bgp_announce_route_all (peer); | |
966f821c | 4686 | return 0; |
3f9c7369 | 4687 | } |
966f821c DS |
4688 | |
4689 | /* peer-group member updates. */ | |
4690 | group = peer->group; | |
4691 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, peer)) | |
4692 | { | |
4693 | SET_FLAG (peer->config, PEER_CONFIG_ROUTEADV); | |
4694 | peer->routeadv = routeadv; | |
4695 | peer->v_routeadv = routeadv; | |
3f9c7369 DS |
4696 | update_group_adjust_peer_afs (peer); |
4697 | if (peer->status == Established) | |
4698 | bgp_announce_route_all (peer); | |
966f821c DS |
4699 | } |
4700 | ||
718e3744 | 4701 | return 0; |
4702 | } | |
4703 | ||
4704 | int | |
4705 | peer_advertise_interval_unset (struct peer *peer) | |
4706 | { | |
966f821c DS |
4707 | struct peer_group *group; |
4708 | struct listnode *node, *nnode; | |
4709 | ||
718e3744 | 4710 | UNSET_FLAG (peer->config, PEER_CONFIG_ROUTEADV); |
4711 | peer->routeadv = 0; | |
4712 | ||
6d85b15b | 4713 | if (peer->sort == BGP_PEER_IBGP) |
718e3744 | 4714 | peer->v_routeadv = BGP_DEFAULT_IBGP_ROUTEADV; |
4715 | else | |
4716 | peer->v_routeadv = BGP_DEFAULT_EBGP_ROUTEADV; | |
966f821c | 4717 | |
3f9c7369 DS |
4718 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) { |
4719 | update_group_adjust_peer_afs (peer); | |
4720 | if (peer->status == Established) | |
4721 | bgp_announce_route_all (peer); | |
966f821c | 4722 | return 0; |
3f9c7369 | 4723 | } |
966f821c DS |
4724 | |
4725 | /* peer-group member updates. */ | |
4726 | group = peer->group; | |
4727 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, peer)) | |
4728 | { | |
4729 | UNSET_FLAG (peer->config, PEER_CONFIG_ROUTEADV); | |
4730 | peer->routeadv = 0; | |
4731 | ||
4732 | if (peer->sort == BGP_PEER_IBGP) | |
4733 | peer->v_routeadv = BGP_DEFAULT_IBGP_ROUTEADV; | |
4734 | else | |
4735 | peer->v_routeadv = BGP_DEFAULT_EBGP_ROUTEADV; | |
3f9c7369 DS |
4736 | |
4737 | update_group_adjust_peer_afs (peer); | |
4738 | if (peer->status == Established) | |
4739 | bgp_announce_route_all (peer); | |
966f821c | 4740 | } |
718e3744 | 4741 | |
4742 | return 0; | |
4743 | } | |
6b0655a2 | 4744 | |
718e3744 | 4745 | /* neighbor interface */ |
ffd0c037 | 4746 | void |
fd79ac91 | 4747 | peer_interface_set (struct peer *peer, const char *str) |
718e3744 | 4748 | { |
4749 | if (peer->ifname) | |
6e919709 DS |
4750 | XFREE(MTYPE_BGP_PEER_IFNAME, peer->ifname); |
4751 | peer->ifname = XSTRDUP(MTYPE_BGP_PEER_IFNAME, str); | |
718e3744 | 4752 | } |
4753 | ||
ffd0c037 | 4754 | void |
718e3744 | 4755 | peer_interface_unset (struct peer *peer) |
4756 | { | |
4757 | if (peer->ifname) | |
6e919709 | 4758 | XFREE(MTYPE_BGP_PEER_IFNAME, peer->ifname); |
718e3744 | 4759 | peer->ifname = NULL; |
718e3744 | 4760 | } |
6b0655a2 | 4761 | |
718e3744 | 4762 | /* Allow-as in. */ |
4763 | int | |
4764 | peer_allowas_in_set (struct peer *peer, afi_t afi, safi_t safi, int allow_num) | |
4765 | { | |
4766 | struct peer_group *group; | |
1eb8ef25 | 4767 | struct listnode *node, *nnode; |
718e3744 | 4768 | |
4769 | if (allow_num < 1 || allow_num > 10) | |
4770 | return BGP_ERR_INVALID_VALUE; | |
4771 | ||
4772 | if (peer->allowas_in[afi][safi] != allow_num) | |
4773 | { | |
4774 | peer->allowas_in[afi][safi] = allow_num; | |
4775 | SET_FLAG (peer->af_flags[afi][safi], PEER_FLAG_ALLOWAS_IN); | |
4776 | peer_change_action (peer, afi, safi, peer_change_reset_in); | |
4777 | } | |
4778 | ||
4779 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) | |
4780 | return 0; | |
4781 | ||
4782 | group = peer->group; | |
1eb8ef25 | 4783 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, peer)) |
718e3744 | 4784 | { |
4785 | if (peer->allowas_in[afi][safi] != allow_num) | |
4786 | { | |
4787 | peer->allowas_in[afi][safi] = allow_num; | |
4788 | SET_FLAG (peer->af_flags[afi][safi], PEER_FLAG_ALLOWAS_IN); | |
4789 | peer_change_action (peer, afi, safi, peer_change_reset_in); | |
4790 | } | |
4791 | ||
4792 | } | |
4793 | return 0; | |
4794 | } | |
4795 | ||
4796 | int | |
4797 | peer_allowas_in_unset (struct peer *peer, afi_t afi, safi_t safi) | |
4798 | { | |
4799 | struct peer_group *group; | |
1eb8ef25 | 4800 | struct listnode *node, *nnode; |
718e3744 | 4801 | |
4802 | if (CHECK_FLAG (peer->af_flags[afi][safi], PEER_FLAG_ALLOWAS_IN)) | |
4803 | { | |
4804 | peer->allowas_in[afi][safi] = 0; | |
4805 | peer_af_flag_unset (peer, afi, safi, PEER_FLAG_ALLOWAS_IN); | |
4806 | } | |
4807 | ||
4808 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) | |
4809 | return 0; | |
4810 | ||
4811 | group = peer->group; | |
1eb8ef25 | 4812 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, peer)) |
718e3744 | 4813 | { |
4814 | if (CHECK_FLAG (peer->af_flags[afi][safi], PEER_FLAG_ALLOWAS_IN)) | |
4815 | { | |
4816 | peer->allowas_in[afi][safi] = 0; | |
4817 | peer_af_flag_unset (peer, afi, safi, PEER_FLAG_ALLOWAS_IN); | |
4818 | } | |
4819 | } | |
4820 | return 0; | |
4821 | } | |
6b0655a2 | 4822 | |
718e3744 | 4823 | int |
9d3f9705 | 4824 | peer_local_as_set (struct peer *peer, as_t as, int no_prepend, int replace_as) |
718e3744 | 4825 | { |
4826 | struct bgp *bgp = peer->bgp; | |
4827 | struct peer_group *group; | |
1eb8ef25 | 4828 | struct listnode *node, *nnode; |
718e3744 | 4829 | |
4830 | if (peer_sort (peer) != BGP_PEER_EBGP | |
4831 | && peer_sort (peer) != BGP_PEER_INTERNAL) | |
4832 | return BGP_ERR_LOCAL_AS_ALLOWED_ONLY_FOR_EBGP; | |
4833 | ||
4834 | if (bgp->as == as) | |
4835 | return BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS; | |
4836 | ||
9d3f9705 AC |
4837 | if (peer->as == as) |
4838 | return BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS_REMOTE_AS; | |
4839 | ||
718e3744 | 4840 | if (peer->change_local_as == as && |
4841 | ((CHECK_FLAG (peer->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND) && no_prepend) | |
9d3f9705 AC |
4842 | || (! CHECK_FLAG (peer->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND) && ! no_prepend)) && |
4843 | ((CHECK_FLAG (peer->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS) && replace_as) | |
4844 | || (! CHECK_FLAG (peer->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS) && ! replace_as))) | |
718e3744 | 4845 | return 0; |
4846 | ||
4847 | peer->change_local_as = as; | |
4848 | if (no_prepend) | |
4849 | SET_FLAG (peer->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
4850 | else | |
4851 | UNSET_FLAG (peer->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
4852 | ||
9d3f9705 AC |
4853 | if (replace_as) |
4854 | SET_FLAG (peer->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
4855 | else | |
4856 | UNSET_FLAG (peer->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
4857 | ||
718e3744 | 4858 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) |
4859 | { | |
6aa136f1 | 4860 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
e0701b79 | 4861 | { |
4862 | peer->last_reset = PEER_DOWN_LOCAL_AS_CHANGE; | |
4863 | bgp_notify_send (peer, BGP_NOTIFY_CEASE, | |
4864 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4865 | } | |
718e3744 | 4866 | else |
1ff9a340 | 4867 | bgp_session_reset(peer); |
718e3744 | 4868 | return 0; |
4869 | } | |
4870 | ||
4871 | group = peer->group; | |
1eb8ef25 | 4872 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, peer)) |
718e3744 | 4873 | { |
4874 | peer->change_local_as = as; | |
4875 | if (no_prepend) | |
4876 | SET_FLAG (peer->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
4877 | else | |
4878 | UNSET_FLAG (peer->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
4879 | ||
9d3f9705 AC |
4880 | if (replace_as) |
4881 | SET_FLAG (peer->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
4882 | else | |
4883 | UNSET_FLAG (peer->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
4884 | ||
6aa136f1 | 4885 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
e0701b79 | 4886 | { |
4887 | peer->last_reset = PEER_DOWN_LOCAL_AS_CHANGE; | |
4888 | bgp_notify_send (peer, BGP_NOTIFY_CEASE, | |
4889 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4890 | } | |
718e3744 | 4891 | else |
4892 | BGP_EVENT_ADD (peer, BGP_Stop); | |
4893 | } | |
4894 | ||
4895 | return 0; | |
4896 | } | |
4897 | ||
4898 | int | |
4899 | peer_local_as_unset (struct peer *peer) | |
4900 | { | |
4901 | struct peer_group *group; | |
1eb8ef25 | 4902 | struct listnode *node, *nnode; |
718e3744 | 4903 | |
718e3744 | 4904 | if (! peer->change_local_as) |
4905 | return 0; | |
4906 | ||
4907 | peer->change_local_as = 0; | |
4908 | UNSET_FLAG (peer->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
9d3f9705 | 4909 | UNSET_FLAG (peer->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS); |
718e3744 | 4910 | |
4911 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) | |
4912 | { | |
6aa136f1 | 4913 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
e0701b79 | 4914 | { |
4915 | peer->last_reset = PEER_DOWN_LOCAL_AS_CHANGE; | |
4916 | bgp_notify_send (peer, BGP_NOTIFY_CEASE, | |
4917 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4918 | } | |
718e3744 | 4919 | else |
4920 | BGP_EVENT_ADD (peer, BGP_Stop); | |
4921 | ||
4922 | return 0; | |
4923 | } | |
4924 | ||
4925 | group = peer->group; | |
1eb8ef25 | 4926 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, peer)) |
718e3744 | 4927 | { |
4928 | peer->change_local_as = 0; | |
4929 | UNSET_FLAG (peer->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
9d3f9705 | 4930 | UNSET_FLAG (peer->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS); |
718e3744 | 4931 | |
6aa136f1 | 4932 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
e0701b79 | 4933 | { |
4934 | peer->last_reset = PEER_DOWN_LOCAL_AS_CHANGE; | |
4935 | bgp_notify_send (peer, BGP_NOTIFY_CEASE, | |
4936 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4937 | } | |
718e3744 | 4938 | else |
1ff9a340 | 4939 | bgp_session_reset(peer); |
718e3744 | 4940 | } |
4941 | return 0; | |
4942 | } | |
6b0655a2 | 4943 | |
0df7c91f PJ |
4944 | /* Set password for authenticating with the peer. */ |
4945 | int | |
4946 | peer_password_set (struct peer *peer, const char *password) | |
4947 | { | |
4948 | struct listnode *nn, *nnode; | |
4949 | int len = password ? strlen(password) : 0; | |
4950 | int ret = BGP_SUCCESS; | |
4951 | ||
4952 | if ((len < PEER_PASSWORD_MINLEN) || (len > PEER_PASSWORD_MAXLEN)) | |
4953 | return BGP_ERR_INVALID_VALUE; | |
4954 | ||
4955 | if (peer->password && strcmp (peer->password, password) == 0 | |
4956 | && ! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) | |
4957 | return 0; | |
4958 | ||
4959 | if (peer->password) | |
4960 | XFREE (MTYPE_PEER_PASSWORD, peer->password); | |
4961 | ||
4962 | peer->password = XSTRDUP (MTYPE_PEER_PASSWORD, password); | |
4963 | ||
4964 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) | |
4965 | { | |
6aa136f1 VS |
4966 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
4967 | bgp_notify_send (peer, BGP_NOTIFY_CEASE, BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
0df7c91f | 4968 | else |
1ff9a340 | 4969 | bgp_session_reset(peer); |
0df7c91f | 4970 | |
89ca90fa | 4971 | if (BGP_PEER_SU_UNSPEC(peer)) |
4972 | return BGP_SUCCESS; | |
4973 | ||
0df7c91f PJ |
4974 | return (bgp_md5_set (peer) >= 0) ? BGP_SUCCESS : BGP_ERR_TCPSIG_FAILED; |
4975 | } | |
4976 | ||
4977 | for (ALL_LIST_ELEMENTS (peer->group->peer, nn, nnode, peer)) | |
4978 | { | |
4979 | if (peer->password && strcmp (peer->password, password) == 0) | |
4980 | continue; | |
4981 | ||
4982 | if (peer->password) | |
4983 | XFREE (MTYPE_PEER_PASSWORD, peer->password); | |
4984 | ||
4985 | peer->password = XSTRDUP(MTYPE_PEER_PASSWORD, password); | |
4986 | ||
6aa136f1 | 4987 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
0df7c91f PJ |
4988 | bgp_notify_send (peer, BGP_NOTIFY_CEASE, BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
4989 | else | |
1ff9a340 | 4990 | bgp_session_reset(peer); |
0df7c91f | 4991 | |
89ca90fa | 4992 | if (! BGP_PEER_SU_UNSPEC(peer)) |
4993 | { | |
4994 | if (bgp_md5_set (peer) < 0) | |
4995 | ret = BGP_ERR_TCPSIG_FAILED; | |
4996 | } | |
0df7c91f PJ |
4997 | } |
4998 | ||
4999 | return ret; | |
5000 | } | |
5001 | ||
5002 | int | |
5003 | peer_password_unset (struct peer *peer) | |
5004 | { | |
5005 | struct listnode *nn, *nnode; | |
5006 | ||
5007 | if (!peer->password | |
5008 | && !CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) | |
5009 | return 0; | |
5010 | ||
5011 | if (!CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) | |
5012 | { | |
6aa136f1 | 5013 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
0df7c91f PJ |
5014 | bgp_notify_send (peer, BGP_NOTIFY_CEASE, BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
5015 | else | |
1ff9a340 | 5016 | bgp_session_reset(peer); |
0df7c91f PJ |
5017 | |
5018 | if (peer->password) | |
5019 | XFREE (MTYPE_PEER_PASSWORD, peer->password); | |
5020 | ||
5021 | peer->password = NULL; | |
5022 | ||
89ca90fa | 5023 | if (! BGP_PEER_SU_UNSPEC(peer)) |
5024 | bgp_md5_unset (peer); | |
0df7c91f PJ |
5025 | |
5026 | return 0; | |
5027 | } | |
5028 | ||
5029 | XFREE (MTYPE_PEER_PASSWORD, peer->password); | |
5030 | peer->password = NULL; | |
5031 | ||
5032 | for (ALL_LIST_ELEMENTS (peer->group->peer, nn, nnode, peer)) | |
5033 | { | |
5034 | if (!peer->password) | |
5035 | continue; | |
5036 | ||
6aa136f1 | 5037 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
0df7c91f PJ |
5038 | bgp_notify_send (peer, BGP_NOTIFY_CEASE, BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
5039 | else | |
1ff9a340 | 5040 | bgp_session_reset(peer); |
0df7c91f PJ |
5041 | |
5042 | XFREE (MTYPE_PEER_PASSWORD, peer->password); | |
5043 | peer->password = NULL; | |
5044 | ||
89ca90fa | 5045 | if (! BGP_PEER_SU_UNSPEC(peer)) |
5046 | bgp_md5_unset (peer); | |
0df7c91f PJ |
5047 | } |
5048 | ||
5049 | return 0; | |
5050 | } | |
6b0655a2 | 5051 | |
3f9c7369 | 5052 | /* |
3f9c7369 | 5053 | * Helper function that is called after the name of the policy |
94f34286 DS |
5054 | * being used by a peer has changed (AF specific). Automatically |
5055 | * initiates inbound or outbound processing as needed. | |
3f9c7369 DS |
5056 | */ |
5057 | static void | |
94f34286 | 5058 | peer_on_policy_change (struct peer *peer, afi_t afi, safi_t safi, int outbound) |
3f9c7369 | 5059 | { |
94f34286 | 5060 | if (outbound) |
3f9c7369 | 5061 | { |
94f34286 DS |
5062 | update_group_adjust_peer (peer_af_find (peer, afi, safi)); |
5063 | if (peer->status == Established) | |
5064 | bgp_announce_route(peer, afi, safi); | |
3f9c7369 DS |
5065 | } |
5066 | else | |
94f34286 DS |
5067 | { |
5068 | if (peer->status != Established) | |
5069 | return; | |
5070 | ||
5071 | if (CHECK_FLAG (peer->af_flags[afi][safi], PEER_FLAG_SOFT_RECONFIG)) | |
5072 | bgp_soft_reconfig_in (peer, afi, safi); | |
5073 | else if (CHECK_FLAG (peer->cap, PEER_CAP_REFRESH_OLD_RCV) | |
5074 | || CHECK_FLAG (peer->cap, PEER_CAP_REFRESH_NEW_RCV)) | |
5075 | bgp_route_refresh_send (peer, afi, safi, 0, 0, 0); | |
5076 | } | |
3f9c7369 DS |
5077 | } |
5078 | ||
5079 | ||
718e3744 | 5080 | /* Set distribute list to the peer. */ |
5081 | int | |
5082 | peer_distribute_set (struct peer *peer, afi_t afi, safi_t safi, int direct, | |
fd79ac91 | 5083 | const char *name) |
718e3744 | 5084 | { |
5085 | struct bgp_filter *filter; | |
5086 | struct peer_group *group; | |
1eb8ef25 | 5087 | struct listnode *node, *nnode; |
718e3744 | 5088 | |
718e3744 | 5089 | if (direct != FILTER_IN && direct != FILTER_OUT) |
5090 | return BGP_ERR_INVALID_VALUE; | |
5091 | ||
718e3744 | 5092 | filter = &peer->filter[afi][safi]; |
5093 | ||
5094 | if (filter->plist[direct].name) | |
5095 | return BGP_ERR_PEER_FILTER_CONFLICT; | |
5096 | ||
5097 | if (filter->dlist[direct].name) | |
6e919709 DS |
5098 | XFREE(MTYPE_BGP_FILTER_NAME, filter->dlist[direct].name); |
5099 | filter->dlist[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
718e3744 | 5100 | filter->dlist[direct].alist = access_list_lookup (afi, name); |
5101 | ||
5102 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) | |
3f9c7369 | 5103 | { |
94f34286 DS |
5104 | peer_on_policy_change(peer, afi, safi, |
5105 | (direct == FILTER_OUT) ? 1 : 0); | |
3f9c7369 DS |
5106 | return 0; |
5107 | } | |
718e3744 | 5108 | |
5109 | group = peer->group; | |
1eb8ef25 | 5110 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, peer)) |
718e3744 | 5111 | { |
5112 | filter = &peer->filter[afi][safi]; | |
5113 | ||
718e3744 | 5114 | if (filter->dlist[direct].name) |
6e919709 DS |
5115 | XFREE(MTYPE_BGP_FILTER_NAME, filter->dlist[direct].name); |
5116 | filter->dlist[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
718e3744 | 5117 | filter->dlist[direct].alist = access_list_lookup (afi, name); |
94f34286 DS |
5118 | peer_on_policy_change(peer, afi, safi, |
5119 | (direct == FILTER_OUT) ? 1 : 0); | |
718e3744 | 5120 | } |
5121 | ||
5122 | return 0; | |
5123 | } | |
5124 | ||
5125 | int | |
5126 | peer_distribute_unset (struct peer *peer, afi_t afi, safi_t safi, int direct) | |
5127 | { | |
5128 | struct bgp_filter *filter; | |
5129 | struct bgp_filter *gfilter; | |
5130 | struct peer_group *group; | |
1eb8ef25 | 5131 | struct listnode *node, *nnode; |
718e3744 | 5132 | |
718e3744 | 5133 | if (direct != FILTER_IN && direct != FILTER_OUT) |
5134 | return BGP_ERR_INVALID_VALUE; | |
5135 | ||
718e3744 | 5136 | filter = &peer->filter[afi][safi]; |
5137 | ||
5138 | /* apply peer-group filter */ | |
c8560b44 | 5139 | if (peer_group_active(peer)) |
718e3744 | 5140 | { |
5141 | gfilter = &peer->group->conf->filter[afi][safi]; | |
5142 | ||
5143 | if (gfilter->dlist[direct].name) | |
5144 | { | |
5145 | if (filter->dlist[direct].name) | |
6e919709 DS |
5146 | XFREE(MTYPE_BGP_FILTER_NAME, filter->dlist[direct].name); |
5147 | filter->dlist[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, gfilter->dlist[direct].name); | |
718e3744 | 5148 | filter->dlist[direct].alist = gfilter->dlist[direct].alist; |
94f34286 DS |
5149 | peer_on_policy_change(peer, afi, safi, |
5150 | (direct == FILTER_OUT) ? 1 : 0); | |
718e3744 | 5151 | return 0; |
5152 | } | |
5153 | } | |
5154 | ||
5155 | if (filter->dlist[direct].name) | |
6e919709 | 5156 | XFREE(MTYPE_BGP_FILTER_NAME, filter->dlist[direct].name); |
718e3744 | 5157 | filter->dlist[direct].name = NULL; |
5158 | filter->dlist[direct].alist = NULL; | |
5159 | ||
5160 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) | |
3f9c7369 | 5161 | { |
94f34286 DS |
5162 | peer_on_policy_change(peer, afi, safi, |
5163 | (direct == FILTER_OUT) ? 1 : 0); | |
3f9c7369 DS |
5164 | return 0; |
5165 | } | |
718e3744 | 5166 | |
94f34286 DS |
5167 | group = peer->group; |
5168 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, peer)) | |
5169 | { | |
5170 | filter = &peer->filter[afi][safi]; | |
718e3744 | 5171 | |
94f34286 | 5172 | if (filter->dlist[direct].name) |
6e919709 | 5173 | XFREE(MTYPE_BGP_FILTER_NAME, filter->dlist[direct].name); |
94f34286 DS |
5174 | filter->dlist[direct].name = NULL; |
5175 | filter->dlist[direct].alist = NULL; | |
5176 | peer_on_policy_change(peer, afi, safi, | |
5177 | (direct == FILTER_OUT) ? 1 : 0); | |
5178 | } | |
718e3744 | 5179 | |
5180 | return 0; | |
5181 | } | |
5182 | ||
5183 | /* Update distribute list. */ | |
94f2b392 | 5184 | static void |
718e3744 | 5185 | peer_distribute_update (struct access_list *access) |
5186 | { | |
5187 | afi_t afi; | |
5188 | safi_t safi; | |
5189 | int direct; | |
1eb8ef25 | 5190 | struct listnode *mnode, *mnnode; |
5191 | struct listnode *node, *nnode; | |
718e3744 | 5192 | struct bgp *bgp; |
5193 | struct peer *peer; | |
5194 | struct peer_group *group; | |
5195 | struct bgp_filter *filter; | |
5196 | ||
1eb8ef25 | 5197 | for (ALL_LIST_ELEMENTS (bm->bgp, mnode, mnnode, bgp)) |
718e3744 | 5198 | { |
3f9c7369 DS |
5199 | if (access->name) |
5200 | update_group_policy_update(bgp, BGP_POLICY_FILTER_LIST, access->name, | |
5201 | 0, 0); | |
1eb8ef25 | 5202 | for (ALL_LIST_ELEMENTS (bgp->peer, node, nnode, peer)) |
718e3744 | 5203 | { |
5204 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
5205 | for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++) | |
5206 | { | |
5207 | filter = &peer->filter[afi][safi]; | |
5208 | ||
5209 | for (direct = FILTER_IN; direct < FILTER_MAX; direct++) | |
5210 | { | |
5211 | if (filter->dlist[direct].name) | |
5212 | filter->dlist[direct].alist = | |
5213 | access_list_lookup (afi, filter->dlist[direct].name); | |
5214 | else | |
5215 | filter->dlist[direct].alist = NULL; | |
5216 | } | |
5217 | } | |
5218 | } | |
1eb8ef25 | 5219 | for (ALL_LIST_ELEMENTS (bgp->group, node, nnode, group)) |
718e3744 | 5220 | { |
5221 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
5222 | for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++) | |
5223 | { | |
5224 | filter = &group->conf->filter[afi][safi]; | |
5225 | ||
5226 | for (direct = FILTER_IN; direct < FILTER_MAX; direct++) | |
5227 | { | |
5228 | if (filter->dlist[direct].name) | |
5229 | filter->dlist[direct].alist = | |
5230 | access_list_lookup (afi, filter->dlist[direct].name); | |
5231 | else | |
5232 | filter->dlist[direct].alist = NULL; | |
5233 | } | |
5234 | } | |
5235 | } | |
5236 | } | |
5237 | } | |
6b0655a2 | 5238 | |
718e3744 | 5239 | /* Set prefix list to the peer. */ |
5240 | int | |
5241 | peer_prefix_list_set (struct peer *peer, afi_t afi, safi_t safi, int direct, | |
fd79ac91 | 5242 | const char *name) |
718e3744 | 5243 | { |
5244 | struct bgp_filter *filter; | |
5245 | struct peer_group *group; | |
1eb8ef25 | 5246 | struct listnode *node, *nnode; |
718e3744 | 5247 | |
718e3744 | 5248 | if (direct != FILTER_IN && direct != FILTER_OUT) |
5249 | return BGP_ERR_INVALID_VALUE; | |
5250 | ||
718e3744 | 5251 | filter = &peer->filter[afi][safi]; |
5252 | ||
5253 | if (filter->dlist[direct].name) | |
5254 | return BGP_ERR_PEER_FILTER_CONFLICT; | |
5255 | ||
5256 | if (filter->plist[direct].name) | |
6e919709 DS |
5257 | XFREE(MTYPE_BGP_FILTER_NAME, filter->plist[direct].name); |
5258 | filter->plist[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
718e3744 | 5259 | filter->plist[direct].plist = prefix_list_lookup (afi, name); |
5260 | ||
5261 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) | |
3f9c7369 | 5262 | { |
94f34286 DS |
5263 | peer_on_policy_change(peer, afi, safi, |
5264 | (direct == FILTER_OUT) ? 1 : 0); | |
3f9c7369 DS |
5265 | return 0; |
5266 | } | |
718e3744 | 5267 | |
5268 | group = peer->group; | |
1eb8ef25 | 5269 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, peer)) |
718e3744 | 5270 | { |
5271 | filter = &peer->filter[afi][safi]; | |
5272 | ||
718e3744 | 5273 | if (filter->plist[direct].name) |
6e919709 DS |
5274 | XFREE(MTYPE_BGP_FILTER_NAME, filter->plist[direct].name); |
5275 | filter->plist[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
718e3744 | 5276 | filter->plist[direct].plist = prefix_list_lookup (afi, name); |
94f34286 DS |
5277 | peer_on_policy_change(peer, afi, safi, |
5278 | (direct == FILTER_OUT) ? 1 : 0); | |
718e3744 | 5279 | } |
5280 | return 0; | |
5281 | } | |
5282 | ||
5283 | int | |
5284 | peer_prefix_list_unset (struct peer *peer, afi_t afi, safi_t safi, int direct) | |
5285 | { | |
5286 | struct bgp_filter *filter; | |
5287 | struct bgp_filter *gfilter; | |
5288 | struct peer_group *group; | |
1eb8ef25 | 5289 | struct listnode *node, *nnode; |
718e3744 | 5290 | |
718e3744 | 5291 | if (direct != FILTER_IN && direct != FILTER_OUT) |
5292 | return BGP_ERR_INVALID_VALUE; | |
5293 | ||
718e3744 | 5294 | filter = &peer->filter[afi][safi]; |
5295 | ||
5296 | /* apply peer-group filter */ | |
c8560b44 | 5297 | if (peer_group_active(peer)) |
718e3744 | 5298 | { |
5299 | gfilter = &peer->group->conf->filter[afi][safi]; | |
5300 | ||
5301 | if (gfilter->plist[direct].name) | |
5302 | { | |
5303 | if (filter->plist[direct].name) | |
6e919709 DS |
5304 | XSTRDUP(MTYPE_BGP_FILTER_NAME, filter->plist[direct].name); |
5305 | filter->plist[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, gfilter->plist[direct].name); | |
718e3744 | 5306 | filter->plist[direct].plist = gfilter->plist[direct].plist; |
94f34286 DS |
5307 | peer_on_policy_change(peer, afi, safi, |
5308 | (direct == FILTER_OUT) ? 1 : 0); | |
718e3744 | 5309 | return 0; |
5310 | } | |
5311 | } | |
5312 | ||
5313 | if (filter->plist[direct].name) | |
6e919709 | 5314 | XFREE(MTYPE_BGP_FILTER_NAME, filter->plist[direct].name); |
718e3744 | 5315 | filter->plist[direct].name = NULL; |
5316 | filter->plist[direct].plist = NULL; | |
5317 | ||
5318 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) | |
3f9c7369 | 5319 | { |
94f34286 DS |
5320 | peer_on_policy_change(peer, afi, safi, |
5321 | (direct == FILTER_OUT) ? 1 : 0); | |
3f9c7369 DS |
5322 | return 0; |
5323 | } | |
718e3744 | 5324 | |
5325 | group = peer->group; | |
1eb8ef25 | 5326 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, peer)) |
718e3744 | 5327 | { |
5328 | filter = &peer->filter[afi][safi]; | |
5329 | ||
718e3744 | 5330 | if (filter->plist[direct].name) |
6e919709 | 5331 | XFREE(MTYPE_BGP_FILTER_NAME, filter->plist[direct].name); |
718e3744 | 5332 | filter->plist[direct].name = NULL; |
5333 | filter->plist[direct].plist = NULL; | |
94f34286 DS |
5334 | peer_on_policy_change(peer, afi, safi, |
5335 | (direct == FILTER_OUT) ? 1 : 0); | |
718e3744 | 5336 | } |
5337 | ||
5338 | return 0; | |
5339 | } | |
5340 | ||
5341 | /* Update prefix-list list. */ | |
94f2b392 | 5342 | static void |
718e3744 | 5343 | peer_prefix_list_update (struct prefix_list *plist) |
5344 | { | |
1eb8ef25 | 5345 | struct listnode *mnode, *mnnode; |
5346 | struct listnode *node, *nnode; | |
718e3744 | 5347 | struct bgp *bgp; |
5348 | struct peer *peer; | |
5349 | struct peer_group *group; | |
5350 | struct bgp_filter *filter; | |
5351 | afi_t afi; | |
5352 | safi_t safi; | |
5353 | int direct; | |
5354 | ||
1eb8ef25 | 5355 | for (ALL_LIST_ELEMENTS (bm->bgp, mnode, mnnode, bgp)) |
718e3744 | 5356 | { |
3f9c7369 DS |
5357 | |
5358 | /* | |
5359 | * Update the prefix-list on update groups. | |
5360 | */ | |
5361 | update_group_policy_update(bgp, BGP_POLICY_PREFIX_LIST, | |
a38401b6 | 5362 | plist ? prefix_list_name(plist) : NULL, 0, 0); |
3f9c7369 | 5363 | |
1eb8ef25 | 5364 | for (ALL_LIST_ELEMENTS (bgp->peer, node, nnode, peer)) |
718e3744 | 5365 | { |
5366 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
5367 | for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++) | |
5368 | { | |
5369 | filter = &peer->filter[afi][safi]; | |
5370 | ||
5371 | for (direct = FILTER_IN; direct < FILTER_MAX; direct++) | |
5372 | { | |
5373 | if (filter->plist[direct].name) | |
5374 | filter->plist[direct].plist = | |
5375 | prefix_list_lookup (afi, filter->plist[direct].name); | |
5376 | else | |
5377 | filter->plist[direct].plist = NULL; | |
5378 | } | |
5379 | } | |
5380 | } | |
1eb8ef25 | 5381 | for (ALL_LIST_ELEMENTS (bgp->group, node, nnode, group)) |
718e3744 | 5382 | { |
5383 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
5384 | for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++) | |
5385 | { | |
5386 | filter = &group->conf->filter[afi][safi]; | |
5387 | ||
5388 | for (direct = FILTER_IN; direct < FILTER_MAX; direct++) | |
5389 | { | |
5390 | if (filter->plist[direct].name) | |
5391 | filter->plist[direct].plist = | |
5392 | prefix_list_lookup (afi, filter->plist[direct].name); | |
5393 | else | |
5394 | filter->plist[direct].plist = NULL; | |
5395 | } | |
5396 | } | |
5397 | } | |
5398 | } | |
5399 | } | |
6b0655a2 | 5400 | |
718e3744 | 5401 | int |
5402 | peer_aslist_set (struct peer *peer, afi_t afi, safi_t safi, int direct, | |
fd79ac91 | 5403 | const char *name) |
718e3744 | 5404 | { |
5405 | struct bgp_filter *filter; | |
5406 | struct peer_group *group; | |
1eb8ef25 | 5407 | struct listnode *node, *nnode; |
718e3744 | 5408 | |
718e3744 | 5409 | if (direct != FILTER_IN && direct != FILTER_OUT) |
5410 | return BGP_ERR_INVALID_VALUE; | |
5411 | ||
718e3744 | 5412 | filter = &peer->filter[afi][safi]; |
5413 | ||
5414 | if (filter->aslist[direct].name) | |
6e919709 DS |
5415 | XFREE(MTYPE_BGP_FILTER_NAME, filter->aslist[direct].name); |
5416 | filter->aslist[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
718e3744 | 5417 | filter->aslist[direct].aslist = as_list_lookup (name); |
5418 | ||
5419 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) | |
3f9c7369 | 5420 | { |
94f34286 DS |
5421 | peer_on_policy_change(peer, afi, safi, |
5422 | (direct == FILTER_OUT) ? 1 : 0); | |
3f9c7369 DS |
5423 | return 0; |
5424 | } | |
718e3744 | 5425 | |
5426 | group = peer->group; | |
1eb8ef25 | 5427 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, peer)) |
718e3744 | 5428 | { |
5429 | filter = &peer->filter[afi][safi]; | |
5430 | ||
718e3744 | 5431 | if (filter->aslist[direct].name) |
6e919709 DS |
5432 | XFREE(MTYPE_BGP_FILTER_NAME, filter->aslist[direct].name); |
5433 | filter->aslist[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
718e3744 | 5434 | filter->aslist[direct].aslist = as_list_lookup (name); |
94f34286 DS |
5435 | peer_on_policy_change(peer, afi, safi, |
5436 | (direct == FILTER_OUT) ? 1 : 0); | |
718e3744 | 5437 | } |
5438 | return 0; | |
5439 | } | |
5440 | ||
5441 | int | |
5442 | peer_aslist_unset (struct peer *peer,afi_t afi, safi_t safi, int direct) | |
5443 | { | |
5444 | struct bgp_filter *filter; | |
5445 | struct bgp_filter *gfilter; | |
5446 | struct peer_group *group; | |
1eb8ef25 | 5447 | struct listnode *node, *nnode; |
718e3744 | 5448 | |
b5f29603 | 5449 | if (direct != FILTER_IN && direct != FILTER_OUT) |
718e3744 | 5450 | return BGP_ERR_INVALID_VALUE; |
5451 | ||
718e3744 | 5452 | filter = &peer->filter[afi][safi]; |
5453 | ||
5454 | /* apply peer-group filter */ | |
c8560b44 | 5455 | if (peer_group_active(peer)) |
718e3744 | 5456 | { |
5457 | gfilter = &peer->group->conf->filter[afi][safi]; | |
5458 | ||
5459 | if (gfilter->aslist[direct].name) | |
5460 | { | |
5461 | if (filter->aslist[direct].name) | |
6e919709 DS |
5462 | XFREE(MTYPE_BGP_FILTER_NAME, filter->aslist[direct].name); |
5463 | filter->aslist[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, gfilter->aslist[direct].name); | |
718e3744 | 5464 | filter->aslist[direct].aslist = gfilter->aslist[direct].aslist; |
94f34286 DS |
5465 | peer_on_policy_change(peer, afi, safi, |
5466 | (direct == FILTER_OUT) ? 1 : 0); | |
718e3744 | 5467 | return 0; |
5468 | } | |
5469 | } | |
5470 | ||
5471 | if (filter->aslist[direct].name) | |
6e919709 | 5472 | XFREE(MTYPE_BGP_FILTER_NAME, filter->aslist[direct].name); |
718e3744 | 5473 | filter->aslist[direct].name = NULL; |
5474 | filter->aslist[direct].aslist = NULL; | |
5475 | ||
5476 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) | |
3f9c7369 | 5477 | { |
94f34286 DS |
5478 | peer_on_policy_change(peer, afi, safi, |
5479 | (direct == FILTER_OUT) ? 1 : 0); | |
3f9c7369 DS |
5480 | return 0; |
5481 | } | |
718e3744 | 5482 | |
5483 | group = peer->group; | |
1eb8ef25 | 5484 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, peer)) |
718e3744 | 5485 | { |
5486 | filter = &peer->filter[afi][safi]; | |
5487 | ||
718e3744 | 5488 | if (filter->aslist[direct].name) |
6e919709 | 5489 | XFREE(MTYPE_BGP_FILTER_NAME, filter->aslist[direct].name); |
718e3744 | 5490 | filter->aslist[direct].name = NULL; |
5491 | filter->aslist[direct].aslist = NULL; | |
94f34286 DS |
5492 | peer_on_policy_change(peer, afi, safi, |
5493 | (direct == FILTER_OUT) ? 1 : 0); | |
718e3744 | 5494 | } |
5495 | ||
5496 | return 0; | |
5497 | } | |
5498 | ||
94f2b392 | 5499 | static void |
ffd0c037 | 5500 | peer_aslist_update (const char *aslist_name) |
718e3744 | 5501 | { |
5502 | afi_t afi; | |
5503 | safi_t safi; | |
5504 | int direct; | |
1eb8ef25 | 5505 | struct listnode *mnode, *mnnode; |
5506 | struct listnode *node, *nnode; | |
718e3744 | 5507 | struct bgp *bgp; |
5508 | struct peer *peer; | |
5509 | struct peer_group *group; | |
5510 | struct bgp_filter *filter; | |
5511 | ||
1eb8ef25 | 5512 | for (ALL_LIST_ELEMENTS (bm->bgp, mnode, mnnode, bgp)) |
718e3744 | 5513 | { |
3f9c7369 DS |
5514 | update_group_policy_update(bgp, BGP_POLICY_FILTER_LIST, aslist_name, |
5515 | 0, 0); | |
5516 | ||
1eb8ef25 | 5517 | for (ALL_LIST_ELEMENTS (bgp->peer, node, nnode, peer)) |
718e3744 | 5518 | { |
5519 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
5520 | for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++) | |
5521 | { | |
5522 | filter = &peer->filter[afi][safi]; | |
5523 | ||
5524 | for (direct = FILTER_IN; direct < FILTER_MAX; direct++) | |
5525 | { | |
5526 | if (filter->aslist[direct].name) | |
5527 | filter->aslist[direct].aslist = | |
5528 | as_list_lookup (filter->aslist[direct].name); | |
5529 | else | |
5530 | filter->aslist[direct].aslist = NULL; | |
5531 | } | |
5532 | } | |
5533 | } | |
1eb8ef25 | 5534 | for (ALL_LIST_ELEMENTS (bgp->group, node, nnode, group)) |
718e3744 | 5535 | { |
5536 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
5537 | for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++) | |
5538 | { | |
5539 | filter = &group->conf->filter[afi][safi]; | |
5540 | ||
5541 | for (direct = FILTER_IN; direct < FILTER_MAX; direct++) | |
5542 | { | |
5543 | if (filter->aslist[direct].name) | |
5544 | filter->aslist[direct].aslist = | |
5545 | as_list_lookup (filter->aslist[direct].name); | |
5546 | else | |
5547 | filter->aslist[direct].aslist = NULL; | |
5548 | } | |
5549 | } | |
5550 | } | |
5551 | } | |
5552 | } | |
3f9c7369 | 5553 | |
518f0eb1 DS |
5554 | static void |
5555 | peer_aslist_add (char *aslist_name) | |
5556 | { | |
5557 | peer_aslist_update (aslist_name); | |
5558 | route_map_notify_dependencies((char *)aslist_name, RMAP_EVENT_ASLIST_ADDED); | |
5559 | } | |
5560 | ||
5561 | static void | |
ffd0c037 | 5562 | peer_aslist_del (const char *aslist_name) |
518f0eb1 DS |
5563 | { |
5564 | peer_aslist_update (aslist_name); | |
ffd0c037 | 5565 | route_map_notify_dependencies(aslist_name, RMAP_EVENT_ASLIST_DELETED); |
518f0eb1 DS |
5566 | } |
5567 | ||
6b0655a2 | 5568 | |
718e3744 | 5569 | int |
5570 | peer_route_map_set (struct peer *peer, afi_t afi, safi_t safi, int direct, | |
fd79ac91 | 5571 | const char *name) |
718e3744 | 5572 | { |
5573 | struct bgp_filter *filter; | |
5574 | struct peer_group *group; | |
1eb8ef25 | 5575 | struct listnode *node, *nnode; |
718e3744 | 5576 | |
2a3d5731 | 5577 | if (direct != RMAP_IN && direct != RMAP_OUT) |
718e3744 | 5578 | return BGP_ERR_INVALID_VALUE; |
5579 | ||
718e3744 | 5580 | filter = &peer->filter[afi][safi]; |
5581 | ||
5582 | if (filter->map[direct].name) | |
6e919709 | 5583 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); |
518f0eb1 | 5584 | |
6e919709 | 5585 | filter->map[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); |
718e3744 | 5586 | filter->map[direct].map = route_map_lookup_by_name (name); |
5587 | ||
5588 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) | |
518f0eb1 | 5589 | { |
94f34286 DS |
5590 | peer_on_policy_change(peer, afi, safi, |
5591 | (direct == RMAP_OUT) ? 1 : 0); | |
518f0eb1 DS |
5592 | return 0; |
5593 | } | |
718e3744 | 5594 | |
5595 | group = peer->group; | |
1eb8ef25 | 5596 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, peer)) |
718e3744 | 5597 | { |
5598 | filter = &peer->filter[afi][safi]; | |
5599 | ||
718e3744 | 5600 | if (filter->map[direct].name) |
6e919709 DS |
5601 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); |
5602 | filter->map[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
718e3744 | 5603 | filter->map[direct].map = route_map_lookup_by_name (name); |
94f34286 DS |
5604 | peer_on_policy_change(peer, afi, safi, |
5605 | (direct == RMAP_OUT) ? 1 : 0); | |
718e3744 | 5606 | } |
5607 | return 0; | |
5608 | } | |
5609 | ||
5610 | /* Unset route-map from the peer. */ | |
5611 | int | |
5612 | peer_route_map_unset (struct peer *peer, afi_t afi, safi_t safi, int direct) | |
5613 | { | |
5614 | struct bgp_filter *filter; | |
5615 | struct bgp_filter *gfilter; | |
5616 | struct peer_group *group; | |
1eb8ef25 | 5617 | struct listnode *node, *nnode; |
718e3744 | 5618 | |
2a3d5731 | 5619 | if (direct != RMAP_IN && direct != RMAP_OUT) |
718e3744 | 5620 | return BGP_ERR_INVALID_VALUE; |
5621 | ||
718e3744 | 5622 | filter = &peer->filter[afi][safi]; |
5623 | ||
5624 | /* apply peer-group filter */ | |
c8560b44 | 5625 | if (peer_group_active(peer)) |
718e3744 | 5626 | { |
5627 | gfilter = &peer->group->conf->filter[afi][safi]; | |
5628 | ||
5629 | if (gfilter->map[direct].name) | |
5630 | { | |
5631 | if (filter->map[direct].name) | |
6e919709 DS |
5632 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); |
5633 | filter->map[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, gfilter->map[direct].name); | |
718e3744 | 5634 | filter->map[direct].map = gfilter->map[direct].map; |
94f34286 DS |
5635 | peer_on_policy_change(peer, afi, safi, |
5636 | (direct == RMAP_OUT) ? 1 : 0); | |
718e3744 | 5637 | return 0; |
5638 | } | |
5639 | } | |
5640 | ||
5641 | if (filter->map[direct].name) | |
6e919709 | 5642 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); |
718e3744 | 5643 | filter->map[direct].name = NULL; |
5644 | filter->map[direct].map = NULL; | |
5645 | ||
5646 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) | |
518f0eb1 | 5647 | { |
94f34286 DS |
5648 | peer_on_policy_change(peer, afi, safi, |
5649 | (direct == RMAP_OUT) ? 1 : 0); | |
518f0eb1 DS |
5650 | return 0; |
5651 | } | |
718e3744 | 5652 | |
5653 | group = peer->group; | |
1eb8ef25 | 5654 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, peer)) |
718e3744 | 5655 | { |
5656 | filter = &peer->filter[afi][safi]; | |
5657 | ||
718e3744 | 5658 | if (filter->map[direct].name) |
6e919709 | 5659 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); |
718e3744 | 5660 | filter->map[direct].name = NULL; |
5661 | filter->map[direct].map = NULL; | |
94f34286 DS |
5662 | peer_on_policy_change(peer, afi, safi, |
5663 | (direct == RMAP_OUT) ? 1 : 0); | |
718e3744 | 5664 | } |
5665 | return 0; | |
5666 | } | |
6b0655a2 | 5667 | |
718e3744 | 5668 | /* Set unsuppress-map to the peer. */ |
5669 | int | |
fd79ac91 | 5670 | peer_unsuppress_map_set (struct peer *peer, afi_t afi, safi_t safi, |
5671 | const char *name) | |
718e3744 | 5672 | { |
5673 | struct bgp_filter *filter; | |
5674 | struct peer_group *group; | |
1eb8ef25 | 5675 | struct listnode *node, *nnode; |
718e3744 | 5676 | |
718e3744 | 5677 | filter = &peer->filter[afi][safi]; |
5678 | ||
5679 | if (filter->usmap.name) | |
6e919709 | 5680 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); |
718e3744 | 5681 | |
6e919709 | 5682 | filter->usmap.name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); |
718e3744 | 5683 | filter->usmap.map = route_map_lookup_by_name (name); |
5684 | ||
5685 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) | |
518f0eb1 | 5686 | { |
94f34286 | 5687 | peer_on_policy_change(peer, afi, safi, 1); |
518f0eb1 DS |
5688 | return 0; |
5689 | } | |
718e3744 | 5690 | |
5691 | group = peer->group; | |
1eb8ef25 | 5692 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, peer)) |
718e3744 | 5693 | { |
5694 | filter = &peer->filter[afi][safi]; | |
5695 | ||
718e3744 | 5696 | if (filter->usmap.name) |
6e919709 DS |
5697 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); |
5698 | filter->usmap.name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
718e3744 | 5699 | filter->usmap.map = route_map_lookup_by_name (name); |
94f34286 | 5700 | peer_on_policy_change(peer, afi, safi, 1); |
718e3744 | 5701 | } |
5702 | return 0; | |
5703 | } | |
5704 | ||
5705 | /* Unset route-map from the peer. */ | |
5706 | int | |
5707 | peer_unsuppress_map_unset (struct peer *peer, afi_t afi, safi_t safi) | |
5708 | { | |
5709 | struct bgp_filter *filter; | |
5710 | struct peer_group *group; | |
1eb8ef25 | 5711 | struct listnode *node, *nnode; |
718e3744 | 5712 | |
718e3744 | 5713 | filter = &peer->filter[afi][safi]; |
5714 | ||
5715 | if (filter->usmap.name) | |
6e919709 | 5716 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); |
718e3744 | 5717 | filter->usmap.name = NULL; |
5718 | filter->usmap.map = NULL; | |
5719 | ||
5720 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) | |
518f0eb1 | 5721 | { |
94f34286 | 5722 | peer_on_policy_change(peer, afi, safi, 1); |
518f0eb1 DS |
5723 | return 0; |
5724 | } | |
718e3744 | 5725 | |
5726 | group = peer->group; | |
1eb8ef25 | 5727 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, peer)) |
718e3744 | 5728 | { |
5729 | filter = &peer->filter[afi][safi]; | |
5730 | ||
718e3744 | 5731 | if (filter->usmap.name) |
6e919709 | 5732 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); |
718e3744 | 5733 | filter->usmap.name = NULL; |
5734 | filter->usmap.map = NULL; | |
94f34286 | 5735 | peer_on_policy_change(peer, afi, safi, 1); |
718e3744 | 5736 | } |
5737 | return 0; | |
5738 | } | |
6b0655a2 | 5739 | |
718e3744 | 5740 | int |
5741 | peer_maximum_prefix_set (struct peer *peer, afi_t afi, safi_t safi, | |
0a486e5f | 5742 | u_int32_t max, u_char threshold, |
5743 | int warning, u_int16_t restart) | |
718e3744 | 5744 | { |
5745 | struct peer_group *group; | |
1eb8ef25 | 5746 | struct listnode *node, *nnode; |
718e3744 | 5747 | |
718e3744 | 5748 | SET_FLAG (peer->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX); |
5749 | peer->pmax[afi][safi] = max; | |
e0701b79 | 5750 | peer->pmax_threshold[afi][safi] = threshold; |
0a486e5f | 5751 | peer->pmax_restart[afi][safi] = restart; |
718e3744 | 5752 | if (warning) |
5753 | SET_FLAG (peer->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX_WARNING); | |
5754 | else | |
5755 | UNSET_FLAG (peer->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX_WARNING); | |
5756 | ||
fc9a856f | 5757 | if (CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) |
718e3744 | 5758 | { |
fc9a856f DS |
5759 | group = peer->group; |
5760 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, peer)) | |
5761 | { | |
fc9a856f DS |
5762 | SET_FLAG (peer->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX); |
5763 | peer->pmax[afi][safi] = max; | |
5764 | peer->pmax_threshold[afi][safi] = threshold; | |
5765 | peer->pmax_restart[afi][safi] = restart; | |
5766 | if (warning) | |
5767 | SET_FLAG (peer->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX_WARNING); | |
5768 | else | |
5769 | UNSET_FLAG (peer->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX_WARNING); | |
5770 | ||
5771 | if ((peer->status == Established) && (peer->afc[afi][safi])) | |
5772 | bgp_maximum_prefix_overflow (peer, afi, safi, 1); | |
5773 | } | |
5774 | } | |
5775 | else | |
5776 | { | |
5777 | if ((peer->status == Established) && (peer->afc[afi][safi])) | |
5778 | bgp_maximum_prefix_overflow (peer, afi, safi, 1); | |
718e3744 | 5779 | } |
fc9a856f | 5780 | |
718e3744 | 5781 | return 0; |
5782 | } | |
5783 | ||
5784 | int | |
5785 | peer_maximum_prefix_unset (struct peer *peer, afi_t afi, safi_t safi) | |
5786 | { | |
5787 | struct peer_group *group; | |
1eb8ef25 | 5788 | struct listnode *node, *nnode; |
718e3744 | 5789 | |
718e3744 | 5790 | /* apply peer-group config */ |
c8560b44 | 5791 | if (peer_group_active(peer)) |
718e3744 | 5792 | { |
5793 | if (CHECK_FLAG (peer->group->conf->af_flags[afi][safi], | |
5794 | PEER_FLAG_MAX_PREFIX)) | |
5795 | SET_FLAG (peer->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX); | |
5796 | else | |
5797 | UNSET_FLAG (peer->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX); | |
5798 | ||
5799 | if (CHECK_FLAG (peer->group->conf->af_flags[afi][safi], | |
5800 | PEER_FLAG_MAX_PREFIX_WARNING)) | |
5801 | SET_FLAG (peer->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX_WARNING); | |
5802 | else | |
5803 | UNSET_FLAG (peer->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX_WARNING); | |
5804 | ||
5805 | peer->pmax[afi][safi] = peer->group->conf->pmax[afi][safi]; | |
e0701b79 | 5806 | peer->pmax_threshold[afi][safi] = peer->group->conf->pmax_threshold[afi][safi]; |
0a486e5f | 5807 | peer->pmax_restart[afi][safi] = peer->group->conf->pmax_restart[afi][safi]; |
718e3744 | 5808 | return 0; |
5809 | } | |
5810 | ||
5811 | UNSET_FLAG (peer->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX); | |
5812 | UNSET_FLAG (peer->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX_WARNING); | |
5813 | peer->pmax[afi][safi] = 0; | |
0a486e5f | 5814 | peer->pmax_threshold[afi][safi] = 0; |
5815 | peer->pmax_restart[afi][safi] = 0; | |
718e3744 | 5816 | |
5817 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) | |
5818 | return 0; | |
5819 | ||
5820 | group = peer->group; | |
1eb8ef25 | 5821 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, peer)) |
718e3744 | 5822 | { |
718e3744 | 5823 | UNSET_FLAG (peer->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX); |
5824 | UNSET_FLAG (peer->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX_WARNING); | |
5825 | peer->pmax[afi][safi] = 0; | |
0a486e5f | 5826 | peer->pmax_threshold[afi][safi] = 0; |
5827 | peer->pmax_restart[afi][safi] = 0; | |
718e3744 | 5828 | } |
5829 | return 0; | |
5830 | } | |
5f9adb5d | 5831 | |
c43ed2e4 | 5832 | int is_ebgp_multihop_configured (struct peer *peer) |
5f9adb5d DL |
5833 | { |
5834 | struct peer_group *group; | |
5835 | struct listnode *node, *nnode; | |
5836 | struct peer *peer1; | |
5837 | ||
5838 | if (CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) | |
5839 | { | |
5840 | group = peer->group; | |
5d804b43 PM |
5841 | if ((peer_sort(peer) != BGP_PEER_IBGP) && |
5842 | (group->conf->ttl != 1)) | |
5f9adb5d DL |
5843 | return 1; |
5844 | ||
5845 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, peer1)) | |
5846 | { | |
5d804b43 PM |
5847 | if ((peer_sort (peer1) != BGP_PEER_IBGP) && |
5848 | (peer1->ttl != 1)) | |
5f9adb5d DL |
5849 | return 1; |
5850 | } | |
5851 | } | |
5852 | else | |
5853 | { | |
5d804b43 PM |
5854 | if ((peer_sort(peer) != BGP_PEER_IBGP) && |
5855 | (peer->ttl != 1)) | |
5f9adb5d DL |
5856 | return 1; |
5857 | } | |
5858 | return 0; | |
5859 | } | |
5860 | ||
fa411a21 NH |
5861 | /* Set # of hops between us and BGP peer. */ |
5862 | int | |
5863 | peer_ttl_security_hops_set (struct peer *peer, int gtsm_hops) | |
5864 | { | |
5865 | struct peer_group *group; | |
5866 | struct listnode *node, *nnode; | |
fa411a21 NH |
5867 | int ret; |
5868 | ||
5869 | zlog_debug ("peer_ttl_security_hops_set: set gtsm_hops to %d for %s", gtsm_hops, peer->host); | |
5870 | ||
fa411a21 NH |
5871 | /* We cannot configure ttl-security hops when ebgp-multihop is already |
5872 | set. For non peer-groups, the check is simple. For peer-groups, it's | |
5873 | slightly messy, because we need to check both the peer-group structure | |
5874 | and all peer-group members for any trace of ebgp-multihop configuration | |
5875 | before actually applying the ttl-security rules. Cisco really made a | |
5876 | mess of this configuration parameter, and OpenBGPD got it right. | |
5877 | */ | |
e5cc509c DS |
5878 | |
5879 | if ((peer->gtsm_hops == 0) && (peer->sort != BGP_PEER_IBGP)) | |
5f9adb5d DL |
5880 | { |
5881 | if (is_ebgp_multihop_configured (peer)) | |
5882 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
fa411a21 | 5883 | |
e5cc509c DS |
5884 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) |
5885 | { | |
5886 | peer->gtsm_hops = gtsm_hops; | |
fa411a21 | 5887 | |
e5cc509c DS |
5888 | /* Calling ebgp multihop also resets the session. |
5889 | * On restart, NHT will get setup correctly as will the | |
5890 | * min & max ttls on the socket. The return value is | |
5891 | * irrelevant. | |
5892 | */ | |
5893 | ret = peer_ebgp_multihop_set (peer, MAXTTL); | |
5894 | ||
5895 | if (ret != 0) | |
5896 | return ret; | |
5897 | } | |
5898 | else | |
5899 | { | |
5900 | group = peer->group; | |
5901 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, peer)) | |
5902 | { | |
5903 | peer->gtsm_hops = group->conf->gtsm_hops; | |
5904 | ||
5905 | /* Calling ebgp multihop also resets the session. | |
5906 | * On restart, NHT will get setup correctly as will the | |
5907 | * min & max ttls on the socket. The return value is | |
5908 | * irrelevant. | |
5909 | */ | |
5910 | ret = peer_ebgp_multihop_set (peer, MAXTTL); | |
5911 | } | |
5912 | } | |
fa411a21 NH |
5913 | } |
5914 | else | |
5915 | { | |
e5cc509c DS |
5916 | /* Post the first gtsm setup or if its ibgp, maxttl setting isn't |
5917 | * necessary, just set the minttl. | |
5918 | */ | |
5919 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) | |
fa411a21 | 5920 | { |
e5cc509c | 5921 | peer->gtsm_hops = gtsm_hops; |
fa411a21 | 5922 | |
e5cc509c DS |
5923 | if (peer->fd >= 0) |
5924 | sockopt_minttl (peer->su.sa.sa_family, peer->fd, | |
5925 | MAXTTL + 1 - gtsm_hops); | |
5926 | if ((peer->status < Established) && peer->doppelganger && | |
5927 | (peer->doppelganger->fd >= 0)) | |
5928 | sockopt_minttl (peer->su.sa.sa_family, peer->doppelganger->fd, | |
5929 | MAXTTL + 1 - gtsm_hops); | |
5930 | } | |
5931 | else | |
5932 | { | |
5933 | group = peer->group; | |
5934 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, peer)) | |
f5a4827d | 5935 | { |
e5cc509c DS |
5936 | peer->gtsm_hops = group->conf->gtsm_hops; |
5937 | ||
5938 | /* Change setting of existing peer | |
5939 | * established then change value (may break connectivity) | |
5940 | * not established yet (teardown session and restart) | |
5941 | * no session then do nothing (will get handled by next connection) | |
5942 | */ | |
f5a4827d SH |
5943 | if (peer->fd >= 0 && peer->gtsm_hops != 0) |
5944 | sockopt_minttl (peer->su.sa.sa_family, peer->fd, | |
5945 | MAXTTL + 1 - peer->gtsm_hops); | |
e5cc509c DS |
5946 | if ((peer->status < Established) && peer->doppelganger && |
5947 | (peer->doppelganger->fd >= 0)) | |
5948 | sockopt_minttl (peer->su.sa.sa_family, peer->doppelganger->fd, | |
5949 | MAXTTL + 1 - gtsm_hops); | |
5950 | ||
f5a4827d | 5951 | } |
fa411a21 NH |
5952 | } |
5953 | } | |
5954 | ||
5955 | return 0; | |
5956 | } | |
5957 | ||
5958 | int | |
5959 | peer_ttl_security_hops_unset (struct peer *peer) | |
5960 | { | |
5961 | struct peer_group *group; | |
5962 | struct listnode *node, *nnode; | |
e5cc509c | 5963 | int ret = 0; |
fa411a21 NH |
5964 | |
5965 | zlog_debug ("peer_ttl_security_hops_unset: set gtsm_hops to zero for %s", peer->host); | |
5966 | ||
fa411a21 NH |
5967 | /* if a peer-group member, then reset to peer-group default rather than 0 */ |
5968 | if (peer_group_active (peer)) | |
5969 | peer->gtsm_hops = peer->group->conf->gtsm_hops; | |
5970 | else | |
5971 | peer->gtsm_hops = 0; | |
5972 | ||
fa411a21 NH |
5973 | if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) |
5974 | { | |
e5cc509c DS |
5975 | /* Invoking ebgp_multihop_set will set the TTL back to the original |
5976 | * value as well as restting the NHT and such. The session is reset. | |
5977 | */ | |
5978 | if (peer->sort == BGP_PEER_EBGP) | |
5979 | ret = peer_ebgp_multihop_unset (peer); | |
5980 | else | |
5981 | { | |
5982 | if (peer->fd >= 0) | |
5983 | sockopt_minttl (peer->su.sa.sa_family, peer->fd, 0); | |
1ff9a340 | 5984 | |
e5cc509c DS |
5985 | if ((peer->status < Established) && peer->doppelganger && |
5986 | (peer->doppelganger->fd >= 0)) | |
5987 | sockopt_minttl (peer->su.sa.sa_family, | |
5988 | peer->doppelganger->fd, 0); | |
5989 | } | |
fa411a21 NH |
5990 | } |
5991 | else | |
5992 | { | |
5993 | group = peer->group; | |
5994 | for (ALL_LIST_ELEMENTS (group->peer, node, nnode, peer)) | |
5995 | { | |
fa411a21 | 5996 | peer->gtsm_hops = 0; |
e5cc509c DS |
5997 | if (peer->sort == BGP_PEER_EBGP) |
5998 | ret = peer_ebgp_multihop_unset (peer); | |
5999 | else | |
6000 | { | |
6001 | if (peer->fd >= 0) | |
6002 | sockopt_minttl (peer->su.sa.sa_family, peer->fd, 0); | |
1ff9a340 | 6003 | |
e5cc509c DS |
6004 | if ((peer->status < Established) && peer->doppelganger && |
6005 | (peer->doppelganger->fd >= 0)) | |
6006 | sockopt_minttl (peer->su.sa.sa_family, | |
6007 | peer->doppelganger->fd, 0); | |
6008 | } | |
fa411a21 NH |
6009 | } |
6010 | } | |
6011 | ||
88177fe3 | 6012 | return ret; |
fa411a21 | 6013 | } |
6b0655a2 | 6014 | |
1ff9a340 DS |
6015 | /* |
6016 | * If peer clear is invoked in a loop for all peers on the BGP instance, | |
6017 | * it may end up freeing the doppelganger, and if this was the next node | |
6018 | * to the current node, we would end up accessing the freed next node. | |
6019 | * Pass along additional parameter which can be updated if next node | |
6020 | * is freed; only required when walking the peer list on BGP instance. | |
6021 | */ | |
718e3744 | 6022 | int |
1ff9a340 | 6023 | peer_clear (struct peer *peer, struct listnode **nnode) |
718e3744 | 6024 | { |
6025 | if (! CHECK_FLAG (peer->flags, PEER_FLAG_SHUTDOWN)) | |
6026 | { | |
0a486e5f | 6027 | if (CHECK_FLAG (peer->sflags, PEER_STATUS_PREFIX_OVERFLOW)) |
6028 | { | |
6029 | UNSET_FLAG (peer->sflags, PEER_STATUS_PREFIX_OVERFLOW); | |
6030 | if (peer->t_pmax_restart) | |
6031 | { | |
6032 | BGP_TIMER_OFF (peer->t_pmax_restart); | |
16286195 | 6033 | if (bgp_debug_neighbor_events(peer)) |
0a486e5f | 6034 | zlog_debug ("%s Maximum-prefix restart timer canceled", |
6035 | peer->host); | |
6036 | } | |
6037 | BGP_EVENT_ADD (peer, BGP_Start); | |
6038 | return 0; | |
6039 | } | |
6040 | ||
718e3744 | 6041 | peer->v_start = BGP_INIT_START_TIMER; |
6aa136f1 | 6042 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
718e3744 | 6043 | bgp_notify_send (peer, BGP_NOTIFY_CEASE, |
6044 | BGP_NOTIFY_CEASE_ADMIN_RESET); | |
6045 | else | |
1ff9a340 | 6046 | bgp_session_reset_safe(peer, nnode); |
718e3744 | 6047 | } |
6048 | return 0; | |
6049 | } | |
6050 | ||
6051 | int | |
6052 | peer_clear_soft (struct peer *peer, afi_t afi, safi_t safi, | |
6053 | enum bgp_clear_type stype) | |
6054 | { | |
6a646146 DS |
6055 | struct peer_af *paf; |
6056 | ||
718e3744 | 6057 | if (peer->status != Established) |
6058 | return 0; | |
6059 | ||
6060 | if (! peer->afc[afi][safi]) | |
6061 | return BGP_ERR_AF_UNCONFIGURED; | |
6062 | ||
e9a0c656 TT |
6063 | peer->rtt = sockopt_tcp_rtt (peer->fd); |
6064 | ||
718e3744 | 6065 | if (stype == BGP_CLEAR_SOFT_OUT || stype == BGP_CLEAR_SOFT_BOTH) |
6a646146 DS |
6066 | { |
6067 | /* Clear the "neighbor x.x.x.x default-originate" flag */ | |
6068 | paf = peer_af_find (peer, afi, safi); | |
6069 | if (paf && paf->subgroup && | |
6070 | CHECK_FLAG (paf->subgroup->sflags, SUBGRP_STATUS_DEFAULT_ORIGINATE)) | |
6071 | UNSET_FLAG (paf->subgroup->sflags, SUBGRP_STATUS_DEFAULT_ORIGINATE); | |
6072 | ||
6073 | bgp_announce_route (peer, afi, safi); | |
6074 | } | |
718e3744 | 6075 | |
6076 | if (stype == BGP_CLEAR_SOFT_IN_ORF_PREFIX) | |
6077 | { | |
6078 | if (CHECK_FLAG (peer->af_cap[afi][safi], PEER_CAP_ORF_PREFIX_SM_ADV) | |
6079 | && (CHECK_FLAG (peer->af_cap[afi][safi], PEER_CAP_ORF_PREFIX_RM_RCV) | |
6080 | || CHECK_FLAG (peer->af_cap[afi][safi], PEER_CAP_ORF_PREFIX_RM_OLD_RCV))) | |
6081 | { | |
6082 | struct bgp_filter *filter = &peer->filter[afi][safi]; | |
6083 | u_char prefix_type; | |
6084 | ||
6085 | if (CHECK_FLAG (peer->af_cap[afi][safi], PEER_CAP_ORF_PREFIX_RM_RCV)) | |
6086 | prefix_type = ORF_TYPE_PREFIX; | |
6087 | else | |
6088 | prefix_type = ORF_TYPE_PREFIX_OLD; | |
6089 | ||
6090 | if (filter->plist[FILTER_IN].plist) | |
6091 | { | |
6092 | if (CHECK_FLAG (peer->af_sflags[afi][safi], PEER_STATUS_ORF_PREFIX_SEND)) | |
6093 | bgp_route_refresh_send (peer, afi, safi, | |
6094 | prefix_type, REFRESH_DEFER, 1); | |
6095 | bgp_route_refresh_send (peer, afi, safi, prefix_type, | |
6096 | REFRESH_IMMEDIATE, 0); | |
6097 | } | |
6098 | else | |
6099 | { | |
6100 | if (CHECK_FLAG (peer->af_sflags[afi][safi], PEER_STATUS_ORF_PREFIX_SEND)) | |
6101 | bgp_route_refresh_send (peer, afi, safi, | |
6102 | prefix_type, REFRESH_IMMEDIATE, 1); | |
6103 | else | |
6104 | bgp_route_refresh_send (peer, afi, safi, 0, 0, 0); | |
6105 | } | |
6106 | return 0; | |
6107 | } | |
6108 | } | |
6109 | ||
6110 | if (stype == BGP_CLEAR_SOFT_IN || stype == BGP_CLEAR_SOFT_BOTH | |
6111 | || stype == BGP_CLEAR_SOFT_IN_ORF_PREFIX) | |
6112 | { | |
6113 | /* If neighbor has soft reconfiguration inbound flag. | |
6114 | Use Adj-RIB-In database. */ | |
6115 | if (CHECK_FLAG (peer->af_flags[afi][safi], PEER_FLAG_SOFT_RECONFIG)) | |
6116 | bgp_soft_reconfig_in (peer, afi, safi); | |
6117 | else | |
6118 | { | |
6119 | /* If neighbor has route refresh capability, send route refresh | |
6120 | message to the peer. */ | |
6121 | if (CHECK_FLAG (peer->cap, PEER_CAP_REFRESH_OLD_RCV) | |
6122 | || CHECK_FLAG (peer->cap, PEER_CAP_REFRESH_NEW_RCV)) | |
6123 | bgp_route_refresh_send (peer, afi, safi, 0, 0, 0); | |
6124 | else | |
6125 | return BGP_ERR_SOFT_RECONFIG_UNCONFIGURED; | |
6126 | } | |
6127 | } | |
6128 | return 0; | |
6129 | } | |
6b0655a2 | 6130 | |
fd79ac91 | 6131 | /* Display peer uptime.*/ |
6132 | /* XXX: why does this function return char * when it takes buffer? */ | |
718e3744 | 6133 | char * |
856ca177 | 6134 | peer_uptime (time_t uptime2, char *buf, size_t len, u_char use_json, json_object *json) |
718e3744 | 6135 | { |
6136 | time_t uptime1; | |
6137 | struct tm *tm; | |
6138 | ||
6139 | /* Check buffer length. */ | |
6140 | if (len < BGP_UPTIME_LEN) | |
6141 | { | |
856ca177 MS |
6142 | if (!use_json) |
6143 | { | |
6144 | zlog_warn ("peer_uptime (): buffer shortage %lu", (u_long)len); | |
6145 | /* XXX: should return status instead of buf... */ | |
6146 | snprintf (buf, len, "<error> "); | |
6147 | } | |
fd79ac91 | 6148 | return buf; |
718e3744 | 6149 | } |
6150 | ||
6151 | /* If there is no connection has been done before print `never'. */ | |
6152 | if (uptime2 == 0) | |
6153 | { | |
856ca177 MS |
6154 | if (use_json) |
6155 | json_object_string_add(json, "peerUptime", "never"); | |
6156 | else | |
6157 | snprintf (buf, len, "never"); | |
718e3744 | 6158 | return buf; |
6159 | } | |
6160 | ||
6161 | /* Get current time. */ | |
65957886 | 6162 | uptime1 = bgp_clock (); |
718e3744 | 6163 | uptime1 -= uptime2; |
6164 | tm = gmtime (&uptime1); | |
6165 | ||
6166 | /* Making formatted timer strings. */ | |
6167 | #define ONE_DAY_SECOND 60*60*24 | |
3a6229da PJ |
6168 | #define ONE_WEEK_SECOND ONE_DAY_SECOND*7 |
6169 | #define ONE_YEAR_SECOND ONE_DAY_SECOND*365 | |
718e3744 | 6170 | |
856ca177 MS |
6171 | if (use_json) |
6172 | { | |
1d889348 | 6173 | unsigned long time_store; |
1d889348 | 6174 | unsigned long sec_msec = 1000; |
3a6229da PJ |
6175 | unsigned long minute_msec = sec_msec * 60; |
6176 | unsigned long hour_msec = minute_msec * 60; | |
6177 | unsigned long day_msec = hour_msec * 24; | |
6178 | unsigned long year_msec = day_msec *365; | |
1d889348 DS |
6179 | |
6180 | time_store = | |
3a6229da | 6181 | year_msec * tm->tm_year + |
1d889348 DS |
6182 | day_msec * tm->tm_yday + |
6183 | hour_msec * tm->tm_hour + | |
6184 | minute_msec * tm->tm_min + | |
6185 | sec_msec * tm->tm_sec; | |
6186 | json_object_int_add(json, "peerUptimeMsec", time_store); | |
6187 | } | |
6188 | ||
6189 | if (uptime1 < ONE_DAY_SECOND) | |
6190 | snprintf (buf, len, "%02d:%02d:%02d", | |
6191 | tm->tm_hour, tm->tm_min, tm->tm_sec); | |
6192 | else if (uptime1 < ONE_WEEK_SECOND) | |
6193 | snprintf (buf, len, "%dd%02dh%02dm", | |
6194 | tm->tm_yday, tm->tm_hour, tm->tm_min); | |
3a6229da | 6195 | else if (uptime1 < ONE_YEAR_SECOND) |
1d889348 DS |
6196 | snprintf (buf, len, "%02dw%dd%02dh", |
6197 | tm->tm_yday/7, tm->tm_yday - ((tm->tm_yday/7) * 7), tm->tm_hour); | |
3a6229da PJ |
6198 | else |
6199 | snprintf (buf, len, "%02dy%02dw%dd", | |
6200 | tm->tm_year - 70, tm->tm_yday/7, | |
6201 | tm->tm_yday - ((tm->tm_yday/7) * 7)); | |
1d889348 | 6202 | |
718e3744 | 6203 | return buf; |
6204 | } | |
6b0655a2 | 6205 | |
400b1fad DW |
6206 | static void |
6207 | afi_header_vty_out (struct vty *vty, afi_t afi, safi_t safi, | |
6208 | int *write, const char *format, ...) | |
6209 | { | |
6210 | va_list args; | |
6211 | int len = 0; | |
6212 | char buf[1024]; | |
6213 | ||
6214 | bgp_config_write_family_header (vty, afi, safi, write); | |
6215 | ||
6216 | if (vty_shell (vty)) | |
6217 | { | |
6218 | va_start (args, format); | |
6219 | vprintf (format, args); | |
6220 | va_end (args); | |
6221 | } | |
6222 | else | |
6223 | { | |
6224 | va_start (args, format); | |
6225 | len = vsnprintf (buf, sizeof(buf), format, args); | |
6226 | va_end (args); | |
6227 | ||
6228 | buffer_put (vty->obuf, (u_char *) buf, len); | |
6229 | } | |
6230 | } | |
6231 | ||
94f2b392 | 6232 | static void |
718e3744 | 6233 | bgp_config_write_filter (struct vty *vty, struct peer *peer, |
400b1fad | 6234 | afi_t afi, safi_t safi, int *write) |
718e3744 | 6235 | { |
6236 | struct bgp_filter *filter; | |
6237 | struct bgp_filter *gfilter = NULL; | |
6238 | char *addr; | |
6239 | int in = FILTER_IN; | |
6240 | int out = FILTER_OUT; | |
6241 | ||
6242 | addr = peer->host; | |
6243 | filter = &peer->filter[afi][safi]; | |
c8560b44 DW |
6244 | |
6245 | if (peer_group_active(peer)) | |
718e3744 | 6246 | gfilter = &peer->group->conf->filter[afi][safi]; |
6247 | ||
6248 | /* distribute-list. */ | |
6249 | if (filter->dlist[in].name) | |
6250 | if (! gfilter || ! gfilter->dlist[in].name | |
6251 | || strcmp (filter->dlist[in].name, gfilter->dlist[in].name) != 0) | |
400b1fad DW |
6252 | { |
6253 | afi_header_vty_out (vty, afi, safi, write, | |
6254 | " neighbor %s distribute-list %s in%s", | |
6255 | addr, filter->dlist[in].name, VTY_NEWLINE); | |
6256 | } | |
6257 | ||
718e3744 | 6258 | if (filter->dlist[out].name && ! gfilter) |
400b1fad DW |
6259 | { |
6260 | afi_header_vty_out (vty, afi, safi, write, | |
6261 | " neighbor %s distribute-list %s out%s", | |
6262 | addr, filter->dlist[out].name, VTY_NEWLINE); | |
6263 | } | |
718e3744 | 6264 | |
6265 | /* prefix-list. */ | |
6266 | if (filter->plist[in].name) | |
6267 | if (! gfilter || ! gfilter->plist[in].name | |
6268 | || strcmp (filter->plist[in].name, gfilter->plist[in].name) != 0) | |
400b1fad DW |
6269 | { |
6270 | afi_header_vty_out (vty, afi, safi, write, | |
6271 | " neighbor %s prefix-list %s in%s", | |
6272 | addr, filter->plist[in].name, VTY_NEWLINE); | |
6273 | } | |
6274 | ||
718e3744 | 6275 | if (filter->plist[out].name && ! gfilter) |
400b1fad DW |
6276 | { |
6277 | afi_header_vty_out (vty, afi, safi, write, | |
6278 | " neighbor %s prefix-list %s out%s", | |
6279 | addr, filter->plist[out].name, VTY_NEWLINE); | |
6280 | } | |
718e3744 | 6281 | |
6282 | /* route-map. */ | |
fee0f4c6 | 6283 | if (filter->map[RMAP_IN].name) |
6284 | if (! gfilter || ! gfilter->map[RMAP_IN].name | |
6285 | || strcmp (filter->map[RMAP_IN].name, gfilter->map[RMAP_IN].name) != 0) | |
400b1fad DW |
6286 | { |
6287 | afi_header_vty_out (vty, afi, safi, write, | |
6288 | " neighbor %s route-map %s in%s", | |
6289 | addr, filter->map[RMAP_IN].name, VTY_NEWLINE); | |
6290 | } | |
6291 | ||
2bd5af06 DS |
6292 | if (filter->map[RMAP_OUT].name) |
6293 | if (! gfilter || ! gfilter->map[RMAP_OUT].name | |
6294 | || strcmp (filter->map[RMAP_OUT].name, gfilter->map[RMAP_OUT].name) != 0) | |
400b1fad DW |
6295 | { |
6296 | afi_header_vty_out (vty, afi, safi, write, | |
6297 | " neighbor %s route-map %s out%s", | |
6298 | addr, filter->map[RMAP_OUT].name, VTY_NEWLINE); | |
6299 | } | |
6300 | ||
718e3744 | 6301 | /* unsuppress-map */ |
6302 | if (filter->usmap.name && ! gfilter) | |
400b1fad DW |
6303 | { |
6304 | afi_header_vty_out (vty, afi, safi, write, | |
6305 | " neighbor %s unsuppress-map %s%s", | |
6306 | addr, filter->usmap.name, VTY_NEWLINE); | |
6307 | } | |
718e3744 | 6308 | |
6309 | /* filter-list. */ | |
6310 | if (filter->aslist[in].name) | |
6311 | if (! gfilter || ! gfilter->aslist[in].name | |
6312 | || strcmp (filter->aslist[in].name, gfilter->aslist[in].name) != 0) | |
400b1fad DW |
6313 | { |
6314 | afi_header_vty_out (vty, afi, safi, write, | |
6315 | " neighbor %s filter-list %s in%s", | |
6316 | addr, filter->aslist[in].name, VTY_NEWLINE); | |
6317 | } | |
6318 | ||
718e3744 | 6319 | if (filter->aslist[out].name && ! gfilter) |
400b1fad DW |
6320 | { |
6321 | afi_header_vty_out (vty, afi, safi, write, | |
6322 | " neighbor %s filter-list %s out%s", | |
6323 | addr, filter->aslist[out].name, VTY_NEWLINE); | |
6324 | } | |
718e3744 | 6325 | } |
6326 | ||
6327 | /* BGP peer configuration display function. */ | |
94f2b392 | 6328 | static void |
0b960b4d DW |
6329 | bgp_config_write_peer_global (struct vty *vty, struct bgp *bgp, |
6330 | struct peer *peer) | |
718e3744 | 6331 | { |
718e3744 | 6332 | struct peer *g_peer = NULL; |
6333 | char buf[SU_ADDRSTRLEN]; | |
6334 | char *addr; | |
b3a39dc5 DD |
6335 | int if_pg_printed = FALSE; |
6336 | int if_ras_printed = FALSE; | |
718e3744 | 6337 | |
f14e6fdb DS |
6338 | /* Skip dynamic neighbors. */ |
6339 | if (peer_dynamic_neighbor (peer)) | |
6340 | return; | |
6341 | ||
a80beece DS |
6342 | if (peer->conf_if) |
6343 | addr = peer->conf_if; | |
6344 | else | |
6345 | addr = peer->host; | |
6346 | ||
718e3744 | 6347 | /************************************ |
6348 | ****** Global to the neighbor ****** | |
6349 | ************************************/ | |
0b960b4d | 6350 | if (peer->conf_if) |
718e3744 | 6351 | { |
0b960b4d | 6352 | if (CHECK_FLAG(peer->flags, PEER_FLAG_IFPEER_V6ONLY)) |
4c48cf63 | 6353 | vty_out (vty, " neighbor %s interface v6only", addr); |
0b960b4d | 6354 | else |
4c48cf63 DW |
6355 | vty_out (vty, " neighbor %s interface", addr); |
6356 | ||
6357 | if (peer_group_active (peer)) | |
b3a39dc5 DD |
6358 | { |
6359 | vty_out (vty, " peer-group %s", peer->group->name); | |
6360 | if_pg_printed = TRUE; | |
6361 | } | |
6362 | else if (peer->as_type == AS_SPECIFIED) | |
6363 | { | |
6364 | vty_out (vty, " remote-as %u", peer->as); | |
6365 | if_ras_printed = TRUE; | |
6366 | } | |
6367 | else if (peer->as_type == AS_INTERNAL) | |
6368 | { | |
6369 | vty_out (vty, " remote-as internal"); | |
6370 | if_ras_printed = TRUE; | |
6371 | } | |
6372 | else if (peer->as_type == AS_EXTERNAL) | |
6373 | { | |
6374 | vty_out (vty, " remote-as external"); | |
6375 | if_ras_printed = TRUE; | |
6376 | } | |
4c48cf63 DW |
6377 | |
6378 | vty_out (vty, "%s", VTY_NEWLINE); | |
0b960b4d | 6379 | } |
a80beece | 6380 | |
c8560b44 DW |
6381 | /* remote-as and peer-group */ |
6382 | /* peer is a member of a peer-group */ | |
6383 | if (peer_group_active (peer)) | |
0b960b4d | 6384 | { |
c8560b44 | 6385 | g_peer = peer->group->conf; |
0b960b4d | 6386 | |
b3a39dc5 | 6387 | if (g_peer->as_type == AS_UNSPECIFIED && !if_ras_printed) |
0b960b4d DW |
6388 | { |
6389 | if (peer->as_type == AS_SPECIFIED) | |
6390 | { | |
6391 | vty_out (vty, " neighbor %s remote-as %u%s", addr, peer->as, | |
6392 | VTY_NEWLINE); | |
6393 | } | |
6394 | else if (peer->as_type == AS_INTERNAL) | |
6395 | { | |
6396 | vty_out (vty, " neighbor %s remote-as internal%s", addr, VTY_NEWLINE); | |
6397 | } | |
6398 | else if (peer->as_type == AS_EXTERNAL) | |
6399 | { | |
6400 | vty_out (vty, " neighbor %s remote-as external%s", addr, VTY_NEWLINE); | |
6401 | } | |
6402 | } | |
c8560b44 | 6403 | |
4c48cf63 DW |
6404 | /* For swpX peers we displayed the peer-group |
6405 | * via 'neighbor swpX interface peer-group WORD' */ | |
b3a39dc5 | 6406 | if (!if_pg_printed) |
4c48cf63 DW |
6407 | vty_out (vty, " neighbor %s peer-group %s%s", addr, |
6408 | peer->group->name, VTY_NEWLINE); | |
c8560b44 DW |
6409 | } |
6410 | ||
6411 | /* peer is NOT a member of a peer-group */ | |
6412 | else | |
6413 | { | |
6414 | /* peer is a peer-group, declare the peer-group */ | |
6415 | if (CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP)) | |
6416 | { | |
6417 | vty_out (vty, " neighbor %s peer-group%s", addr, | |
6418 | VTY_NEWLINE); | |
6419 | } | |
6420 | ||
b3a39dc5 | 6421 | if (!if_ras_printed) |
c8560b44 | 6422 | { |
b3a39dc5 DD |
6423 | if (peer->as_type == AS_SPECIFIED) |
6424 | { | |
6425 | vty_out (vty, " neighbor %s remote-as %u%s", addr, peer->as, | |
6426 | VTY_NEWLINE); | |
6427 | } | |
6428 | else if (peer->as_type == AS_INTERNAL) | |
6429 | { | |
6430 | vty_out (vty, " neighbor %s remote-as internal%s", addr, VTY_NEWLINE); | |
6431 | } | |
6432 | else if (peer->as_type == AS_EXTERNAL) | |
6433 | { | |
6434 | vty_out (vty, " neighbor %s remote-as external%s", addr, VTY_NEWLINE); | |
6435 | } | |
0b960b4d DW |
6436 | } |
6437 | } | |
718e3744 | 6438 | |
0b960b4d DW |
6439 | /* local-as */ |
6440 | if (peer->change_local_as) | |
6441 | { | |
06830cb8 DW |
6442 | if (! peer_group_active (peer) |
6443 | || peer->change_local_as != g_peer->change_local_as | |
6444 | || (CHECK_FLAG (peer->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND) != | |
6445 | CHECK_FLAG (g_peer->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND)) | |
6446 | || (CHECK_FLAG (peer->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS) != | |
6447 | CHECK_FLAG (g_peer->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS))) | |
0b960b4d DW |
6448 | { |
6449 | vty_out (vty, " neighbor %s local-as %u%s%s%s", addr, | |
6450 | peer->change_local_as, | |
6451 | CHECK_FLAG (peer->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND) ? | |
6452 | " no-prepend" : "", | |
6453 | CHECK_FLAG (peer->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS) ? | |
6454 | " replace-as" : "", VTY_NEWLINE); | |
6455 | } | |
6456 | } | |
718e3744 | 6457 | |
0b960b4d DW |
6458 | /* description */ |
6459 | if (peer->desc) | |
6460 | { | |
6461 | vty_out (vty, " neighbor %s description %s%s", addr, peer->desc, | |
6462 | VTY_NEWLINE); | |
6463 | } | |
718e3744 | 6464 | |
0b960b4d DW |
6465 | /* shutdown */ |
6466 | if (CHECK_FLAG (peer->flags, PEER_FLAG_SHUTDOWN)) | |
6467 | { | |
6468 | if (! peer_group_active (peer) || | |
6469 | ! CHECK_FLAG (g_peer->flags, PEER_FLAG_SHUTDOWN)) | |
6470 | { | |
6471 | vty_out (vty, " neighbor %s shutdown%s", addr, VTY_NEWLINE); | |
6472 | } | |
6473 | } | |
d5a5c8f0 | 6474 | |
0b960b4d DW |
6475 | /* bfd */ |
6476 | if (peer->bfd_info) | |
6477 | { | |
6478 | if (! peer_group_active (peer) || ! g_peer->bfd_info) | |
6479 | { | |
6480 | bgp_bfd_peer_config_write(vty, peer, addr); | |
6481 | } | |
6482 | } | |
718e3744 | 6483 | |
0b960b4d DW |
6484 | /* password */ |
6485 | if (peer->password) | |
6486 | { | |
6487 | if (!peer_group_active (peer) | |
6488 | || ! g_peer->password | |
6489 | || strcmp (peer->password, g_peer->password) != 0) | |
6490 | { | |
6491 | vty_out (vty, " neighbor %s password %s%s", addr, peer->password, | |
6492 | VTY_NEWLINE); | |
6493 | } | |
6494 | } | |
6495 | ||
6496 | /* neighbor solo */ | |
6497 | if (CHECK_FLAG(peer->flags, PEER_FLAG_LONESOUL)) | |
6498 | { | |
6499 | if (!peer_group_active (peer)) | |
6500 | { | |
6501 | vty_out (vty, " neighbor %s solo%s", addr, VTY_NEWLINE); | |
6502 | } | |
6503 | } | |
6504 | ||
6505 | /* BGP port */ | |
6506 | if (peer->port != BGP_PORT_DEFAULT) | |
6507 | { | |
6508 | vty_out (vty, " neighbor %s port %d%s", addr, peer->port, | |
6509 | VTY_NEWLINE); | |
6510 | } | |
6511 | ||
6512 | /* Local interface name */ | |
6513 | if (peer->ifname) | |
6514 | { | |
6515 | vty_out (vty, " neighbor %s interface %s%s", addr, peer->ifname, | |
6516 | VTY_NEWLINE); | |
6517 | } | |
6518 | ||
6519 | /* passive */ | |
6520 | if (CHECK_FLAG (peer->flags, PEER_FLAG_PASSIVE)) | |
6521 | { | |
6522 | if (! peer_group_active (peer) || | |
6523 | ! CHECK_FLAG (g_peer->flags, PEER_FLAG_PASSIVE)) | |
6524 | { | |
6525 | vty_out (vty, " neighbor %s passive%s", addr, VTY_NEWLINE); | |
6526 | } | |
6527 | } | |
6528 | ||
6529 | /* ebgp-multihop */ | |
6530 | if (peer->sort != BGP_PEER_IBGP && peer->ttl != 1 && | |
6531 | !(peer->gtsm_hops != 0 && peer->ttl == MAXTTL)) | |
6532 | { | |
6533 | if (! peer_group_active (peer) || g_peer->ttl != peer->ttl) | |
6534 | { | |
6535 | vty_out (vty, " neighbor %s ebgp-multihop %d%s", addr, peer->ttl, | |
6536 | VTY_NEWLINE); | |
6537 | } | |
6538 | } | |
6539 | ||
6540 | /* ttl-security hops */ | |
6541 | if (peer->gtsm_hops != 0) | |
6542 | { | |
6543 | if (! peer_group_active (peer) || g_peer->gtsm_hops != peer->gtsm_hops) | |
6544 | { | |
89b6d1f8 | 6545 | vty_out (vty, " neighbor %s ttl-security hops %d%s", addr, |
fa411a21 | 6546 | peer->gtsm_hops, VTY_NEWLINE); |
0b960b4d DW |
6547 | } |
6548 | } | |
fa411a21 | 6549 | |
0b960b4d DW |
6550 | /* disable-connected-check */ |
6551 | if (CHECK_FLAG (peer->flags, PEER_FLAG_DISABLE_CONNECTED_CHECK)) | |
6552 | { | |
6553 | if (! peer_group_active (peer) || | |
6554 | ! CHECK_FLAG (g_peer->flags, PEER_FLAG_DISABLE_CONNECTED_CHECK)) | |
6555 | { | |
6556 | vty_out (vty, " neighbor %s disable-connected-check%s", addr, VTY_NEWLINE); | |
6557 | } | |
6558 | } | |
718e3744 | 6559 | |
0b960b4d DW |
6560 | /* update-source */ |
6561 | if (peer->update_if) | |
6562 | { | |
6563 | if (! peer_group_active (peer) || ! g_peer->update_if | |
6564 | || strcmp (g_peer->update_if, peer->update_if) != 0) | |
6565 | { | |
6566 | vty_out (vty, " neighbor %s update-source %s%s", addr, | |
6567 | peer->update_if, VTY_NEWLINE); | |
6568 | } | |
6569 | } | |
6570 | if (peer->update_source) | |
6571 | { | |
6572 | if (! peer_group_active (peer) || ! g_peer->update_source | |
6573 | || sockunion_cmp (g_peer->update_source, | |
6574 | peer->update_source) != 0) | |
6575 | { | |
6576 | vty_out (vty, " neighbor %s update-source %s%s", addr, | |
6577 | sockunion2str (peer->update_source, buf, SU_ADDRSTRLEN), | |
6578 | VTY_NEWLINE); | |
6579 | } | |
6580 | } | |
718e3744 | 6581 | |
0b960b4d | 6582 | /* advertisement-interval */ |
813d4307 DW |
6583 | if (CHECK_FLAG (peer->config, PEER_CONFIG_ROUTEADV) |
6584 | && peer->v_routeadv != BGP_DEFAULT_EBGP_ROUTEADV | |
6585 | && ! peer_group_active (peer)) | |
0b960b4d DW |
6586 | { |
6587 | vty_out (vty, " neighbor %s advertisement-interval %d%s", | |
6588 | addr, peer->v_routeadv, VTY_NEWLINE); | |
6589 | } | |
8a92a8a0 | 6590 | |
0b960b4d DW |
6591 | /* timers */ |
6592 | if (CHECK_FLAG (peer->config, PEER_CONFIG_TIMER) | |
813d4307 | 6593 | && (peer->keepalive != BGP_DEFAULT_KEEPALIVE || peer->holdtime != BGP_DEFAULT_HOLDTIME) |
0b960b4d DW |
6594 | && ! peer_group_active (peer)) |
6595 | { | |
6596 | vty_out (vty, " neighbor %s timers %d %d%s", addr, | |
6597 | peer->keepalive, peer->holdtime, VTY_NEWLINE); | |
6598 | } | |
718e3744 | 6599 | |
0b960b4d | 6600 | if (CHECK_FLAG (peer->config, PEER_CONFIG_CONNECT) && |
400b1fad | 6601 | peer->connect != BGP_DEFAULT_CONNECT_RETRY && |
0b960b4d DW |
6602 | ! peer_group_active (peer)) |
6603 | { | |
6604 | vty_out (vty, " neighbor %s timers connect %d%s", addr, | |
6605 | peer->connect, VTY_NEWLINE); | |
6606 | } | |
718e3744 | 6607 | |
0b960b4d DW |
6608 | /* weight */ |
6609 | if (CHECK_FLAG (peer->config, PEER_CONFIG_WEIGHT)) | |
6610 | { | |
6611 | if (! peer_group_active (peer) || g_peer->weight != peer->weight) | |
6612 | { | |
6613 | vty_out (vty, " neighbor %s weight %d%s", addr, peer->weight, | |
6614 | VTY_NEWLINE); | |
6615 | } | |
6616 | } | |
718e3744 | 6617 | |
0b960b4d DW |
6618 | /* capability dynamic */ |
6619 | if (CHECK_FLAG (peer->flags, PEER_FLAG_DYNAMIC_CAPABILITY)) | |
6620 | { | |
6621 | if (! peer_group_active (peer) || | |
6622 | ! CHECK_FLAG (g_peer->flags, PEER_FLAG_DYNAMIC_CAPABILITY)) | |
6623 | { | |
6624 | vty_out (vty, " neighbor %s capability dynamic%s", addr, | |
6625 | VTY_NEWLINE); | |
6626 | } | |
6627 | } | |
6628 | ||
6629 | /* capability extended-nexthop */ | |
b3a39dc5 DD |
6630 | if (peer->ifp && !CHECK_FLAG (peer->flags, PEER_FLAG_CAPABILITY_ENHE)) |
6631 | { | |
6632 | if (! peer_group_active (peer) || | |
6633 | ! CHECK_FLAG (g_peer->flags, PEER_FLAG_CAPABILITY_ENHE)) | |
6634 | { | |
6635 | vty_out (vty, " no neighbor %s capability extended-nexthop%s", addr, | |
6636 | VTY_NEWLINE); | |
6637 | } | |
6638 | } | |
6639 | ||
6640 | if (!peer->ifp && CHECK_FLAG (peer->flags, PEER_FLAG_CAPABILITY_ENHE)) | |
0b960b4d DW |
6641 | { |
6642 | if (! peer_group_active (peer) || | |
6643 | ! CHECK_FLAG (g_peer->flags, PEER_FLAG_CAPABILITY_ENHE)) | |
6644 | { | |
6645 | vty_out (vty, " neighbor %s capability extended-nexthop%s", addr, | |
6646 | VTY_NEWLINE); | |
6647 | } | |
718e3744 | 6648 | } |
6649 | ||
0b960b4d DW |
6650 | /* dont-capability-negotiation */ |
6651 | if (CHECK_FLAG (peer->flags, PEER_FLAG_DONT_CAPABILITY)) | |
6652 | { | |
6653 | if (! peer_group_active (peer) || | |
6654 | ! CHECK_FLAG (g_peer->flags, PEER_FLAG_DONT_CAPABILITY)) | |
6655 | { | |
6656 | vty_out (vty, " neighbor %s dont-capability-negotiate%s", addr, | |
6657 | VTY_NEWLINE); | |
6658 | } | |
6659 | } | |
718e3744 | 6660 | |
0b960b4d DW |
6661 | /* override-capability */ |
6662 | if (CHECK_FLAG (peer->flags, PEER_FLAG_OVERRIDE_CAPABILITY)) | |
6663 | { | |
6664 | if (! peer_group_active (peer) || | |
6665 | ! CHECK_FLAG (g_peer->flags, PEER_FLAG_OVERRIDE_CAPABILITY)) | |
6666 | { | |
6667 | vty_out (vty, " neighbor %s override-capability%s", addr, | |
6668 | VTY_NEWLINE); | |
6669 | } | |
6670 | } | |
718e3744 | 6671 | |
0b960b4d DW |
6672 | /* strict-capability-match */ |
6673 | if (CHECK_FLAG (peer->flags, PEER_FLAG_STRICT_CAP_MATCH)) | |
718e3744 | 6674 | { |
0b960b4d DW |
6675 | if (! peer_group_active (peer) || |
6676 | ! CHECK_FLAG (g_peer->flags, PEER_FLAG_STRICT_CAP_MATCH)) | |
6677 | { | |
6678 | vty_out (vty, " neighbor %s strict-capability-match%s", addr, | |
6679 | VTY_NEWLINE); | |
6680 | } | |
718e3744 | 6681 | } |
0b960b4d DW |
6682 | } |
6683 | ||
0b960b4d DW |
6684 | /* BGP peer configuration display function. */ |
6685 | static void | |
6686 | bgp_config_write_peer_af (struct vty *vty, struct bgp *bgp, | |
400b1fad DW |
6687 | struct peer *peer, afi_t afi, safi_t safi, |
6688 | int *write) | |
0b960b4d DW |
6689 | { |
6690 | struct peer *g_peer = NULL; | |
6691 | char *addr; | |
6692 | ||
6693 | /* Skip dynamic neighbors. */ | |
6694 | if (peer_dynamic_neighbor (peer)) | |
6695 | return; | |
6696 | ||
6697 | if (peer->conf_if) | |
6698 | addr = peer->conf_if; | |
6699 | else | |
6700 | addr = peer->host; | |
6701 | ||
0b960b4d DW |
6702 | /************************************ |
6703 | ****** Per AF to the neighbor ****** | |
6704 | ************************************/ | |
c8560b44 | 6705 | if (peer_group_active (peer)) |
400b1fad | 6706 | { |
c8560b44 DW |
6707 | g_peer = peer->group->conf; |
6708 | ||
6709 | /* If the peer-group is active but peer is not, print a 'no activate' */ | |
6710 | if (g_peer->afc[afi][safi] && !peer->afc[afi][safi]) | |
6711 | { | |
6712 | afi_header_vty_out (vty, afi, safi, write, | |
6713 | " no neighbor %s activate%s", | |
6714 | addr, VTY_NEWLINE); | |
6715 | } | |
6716 | ||
6717 | /* If the peer-group is not active but peer is, print an 'activate' */ | |
6718 | else if (!g_peer->afc[afi][safi] && peer->afc[afi][safi]) | |
6719 | { | |
6720 | afi_header_vty_out (vty, afi, safi, write, | |
6721 | " neighbor %s activate%s", | |
6722 | addr, VTY_NEWLINE); | |
6723 | } | |
400b1fad | 6724 | } |
0b960b4d | 6725 | else |
c8560b44 DW |
6726 | { |
6727 | if (peer->afc[afi][safi]) | |
6728 | { | |
655f79c9 DD |
6729 | if ((afi == AFI_IP) && (safi == SAFI_UNICAST)) |
6730 | { | |
6731 | if (bgp_flag_check (bgp, BGP_FLAG_NO_DEFAULT_IPV4)) | |
6732 | { | |
a94d98ae DW |
6733 | afi_header_vty_out(vty, afi, safi, write, |
6734 | " neighbor %s activate%s", | |
6735 | addr, VTY_NEWLINE); | |
655f79c9 DD |
6736 | } |
6737 | } | |
6738 | else | |
6739 | afi_header_vty_out (vty, afi, safi, write, | |
6740 | " neighbor %s activate%s", | |
6741 | addr, VTY_NEWLINE); | |
c8560b44 | 6742 | } |
7709c62d DS |
6743 | else |
6744 | { | |
6745 | if ((afi == AFI_IP) && (safi == SAFI_UNICAST)) | |
6746 | { | |
6747 | if (!bgp_flag_check (bgp, BGP_FLAG_NO_DEFAULT_IPV4)) | |
6748 | { | |
6749 | afi_header_vty_out (vty, afi, safi, write, | |
6750 | " no neighbor %s activate%s", | |
6751 | addr, VTY_NEWLINE); | |
6752 | } | |
6753 | } | |
6754 | } | |
c8560b44 | 6755 | } |
718e3744 | 6756 | |
adbac85e DW |
6757 | /* addpath TX knobs */ |
6758 | if (peergroup_af_flag_check (peer, afi, safi, PEER_FLAG_ADDPATH_TX_ALL_PATHS)) | |
c8560b44 DW |
6759 | { |
6760 | afi_header_vty_out (vty, afi, safi, write, | |
6761 | " neighbor %s addpath-tx-all-paths%s", | |
6762 | addr, VTY_NEWLINE); | |
6763 | } | |
06370dac DW |
6764 | |
6765 | if (peergroup_af_flag_check (peer, afi, safi, PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS)) | |
c8560b44 DW |
6766 | { |
6767 | afi_header_vty_out (vty, afi, safi, write, | |
6768 | " neighbor %s addpath-tx-bestpath-per-AS%s", | |
6769 | addr, VTY_NEWLINE); | |
6770 | } | |
adbac85e | 6771 | |
718e3744 | 6772 | /* ORF capability. */ |
88b8ed8d DW |
6773 | if (peergroup_af_flag_check (peer, afi, safi, PEER_FLAG_ORF_PREFIX_SM) || |
6774 | peergroup_af_flag_check (peer, afi, safi, PEER_FLAG_ORF_PREFIX_RM)) | |
718e3744 | 6775 | { |
400b1fad DW |
6776 | afi_header_vty_out (vty, afi, safi, write, |
6777 | " neighbor %s capability orf prefix-list", | |
6778 | addr); | |
718e3744 | 6779 | |
88b8ed8d DW |
6780 | if (peergroup_af_flag_check (peer, afi, safi, PEER_FLAG_ORF_PREFIX_SM) && |
6781 | peergroup_af_flag_check (peer, afi, safi, PEER_FLAG_ORF_PREFIX_RM)) | |
718e3744 | 6782 | vty_out (vty, " both"); |
88b8ed8d | 6783 | else if (peergroup_af_flag_check (peer, afi, safi, PEER_FLAG_ORF_PREFIX_SM)) |
718e3744 | 6784 | vty_out (vty, " send"); |
6785 | else | |
6786 | vty_out (vty, " receive"); | |
6787 | vty_out (vty, "%s", VTY_NEWLINE); | |
6788 | } | |
6789 | ||
6790 | /* Route reflector client. */ | |
88b8ed8d | 6791 | if (peergroup_af_flag_check (peer, afi, safi, PEER_FLAG_REFLECTOR_CLIENT)) |
400b1fad DW |
6792 | { |
6793 | afi_header_vty_out (vty, afi, safi, write, | |
6794 | " neighbor %s route-reflector-client%s", | |
6795 | addr, VTY_NEWLINE); | |
6796 | } | |
88b8ed8d DW |
6797 | |
6798 | /* next-hop-self force */ | |
6799 | if (peergroup_af_flag_check (peer, afi, safi, PEER_FLAG_FORCE_NEXTHOP_SELF)) | |
400b1fad DW |
6800 | { |
6801 | afi_header_vty_out (vty, afi, safi, write, | |
6802 | " neighbor %s next-hop-self force%s", | |
6803 | addr, VTY_NEWLINE); | |
6804 | } | |
718e3744 | 6805 | |
88b8ed8d DW |
6806 | /* next-hop-self */ |
6807 | if (peergroup_af_flag_check (peer, afi, safi, PEER_FLAG_NEXTHOP_SELF)) | |
400b1fad DW |
6808 | { |
6809 | afi_header_vty_out (vty, afi, safi, write, | |
6810 | " neighbor %s next-hop-self%s", | |
6811 | addr, VTY_NEWLINE); | |
6812 | } | |
718e3744 | 6813 | |
5000f21c | 6814 | /* remove-private-AS */ |
88b8ed8d | 6815 | if (peergroup_af_flag_check (peer, afi, safi, PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE)) |
400b1fad DW |
6816 | { |
6817 | afi_header_vty_out (vty, afi, safi, write, | |
6818 | " neighbor %s remove-private-AS all replace-AS%s", | |
6819 | addr, VTY_NEWLINE); | |
6820 | } | |
5000f21c | 6821 | |
88b8ed8d | 6822 | else if (peergroup_af_flag_check (peer, afi, safi, PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE)) |
400b1fad DW |
6823 | { |
6824 | afi_header_vty_out (vty, afi, safi, write, | |
6825 | " neighbor %s remove-private-AS replace-AS%s", | |
6826 | addr, VTY_NEWLINE); | |
6827 | } | |
5000f21c | 6828 | |
88b8ed8d | 6829 | else if (peergroup_af_flag_check (peer, afi, safi, PEER_FLAG_REMOVE_PRIVATE_AS_ALL)) |
400b1fad DW |
6830 | { |
6831 | afi_header_vty_out (vty, afi, safi, write, | |
6832 | " neighbor %s remove-private-AS all%s", | |
6833 | addr, VTY_NEWLINE); | |
6834 | } | |
5000f21c | 6835 | |
88b8ed8d | 6836 | else if (peergroup_af_flag_check (peer, afi, safi, PEER_FLAG_REMOVE_PRIVATE_AS)) |
400b1fad DW |
6837 | { |
6838 | afi_header_vty_out (vty, afi, safi, write, | |
6839 | " neighbor %s remove-private-AS%s", | |
6840 | addr, VTY_NEWLINE); | |
6841 | } | |
718e3744 | 6842 | |
c7122e14 | 6843 | /* as-override */ |
88b8ed8d | 6844 | if (peergroup_af_flag_check (peer, afi, safi, PEER_FLAG_AS_OVERRIDE)) |
400b1fad DW |
6845 | { |
6846 | afi_header_vty_out (vty, afi, safi, write, | |
6847 | " neighbor %s as-override%s", | |
6848 | addr, VTY_NEWLINE); | |
6849 | } | |
c7122e14 | 6850 | |
718e3744 | 6851 | /* send-community print. */ |
88b8ed8d | 6852 | if (bgp_option_check (BGP_OPT_CONFIG_CISCO)) |
718e3744 | 6853 | { |
88b8ed8d DW |
6854 | if (peergroup_af_flag_check (peer, afi, safi, PEER_FLAG_SEND_COMMUNITY) |
6855 | && peergroup_af_flag_check (peer, afi, safi, PEER_FLAG_SEND_EXT_COMMUNITY)) | |
400b1fad DW |
6856 | { |
6857 | afi_header_vty_out (vty, afi, safi, write, | |
6858 | " neighbor %s send-community both%s", | |
6859 | addr, VTY_NEWLINE); | |
6860 | } | |
88b8ed8d | 6861 | else if (peergroup_af_flag_check (peer, afi, safi, PEER_FLAG_SEND_EXT_COMMUNITY)) |
400b1fad DW |
6862 | { |
6863 | afi_header_vty_out (vty, afi, safi, write, | |
6864 | " neighbor %s send-community extended%s", | |
6865 | addr, VTY_NEWLINE); | |
6866 | } | |
88b8ed8d | 6867 | else if (peergroup_af_flag_check (peer, afi, safi, PEER_FLAG_SEND_COMMUNITY)) |
400b1fad DW |
6868 | { |
6869 | afi_header_vty_out (vty, afi, safi, write, | |
6870 | " neighbor %s send-community%s", | |
6871 | addr, VTY_NEWLINE); | |
6872 | } | |
88b8ed8d DW |
6873 | } |
6874 | else | |
6875 | { | |
6876 | if (!peer_af_flag_check (peer, afi, safi, PEER_FLAG_SEND_COMMUNITY) && | |
ad695d6e | 6877 | (!g_peer || peer_af_flag_check (g_peer, afi, safi, PEER_FLAG_SEND_COMMUNITY)) && |
88b8ed8d | 6878 | !peer_af_flag_check (peer, afi, safi, PEER_FLAG_SEND_EXT_COMMUNITY) && |
ad695d6e | 6879 | (!g_peer || peer_af_flag_check (g_peer, afi, safi, PEER_FLAG_SEND_EXT_COMMUNITY))) |
400b1fad DW |
6880 | { |
6881 | afi_header_vty_out (vty, afi, safi, write, | |
6882 | " no neighbor %s send-community both%s", | |
6883 | addr, VTY_NEWLINE); | |
6884 | } | |
88b8ed8d | 6885 | else if (!peer_af_flag_check (peer, afi, safi, PEER_FLAG_SEND_EXT_COMMUNITY) && |
ad695d6e | 6886 | (!g_peer || peer_af_flag_check (g_peer, afi, safi, PEER_FLAG_SEND_EXT_COMMUNITY))) |
400b1fad DW |
6887 | { |
6888 | afi_header_vty_out (vty, afi, safi, write, | |
6889 | " no neighbor %s send-community extended%s", | |
6890 | addr, VTY_NEWLINE); | |
6891 | } | |
88b8ed8d | 6892 | else if (!peer_af_flag_check (peer, afi, safi, PEER_FLAG_SEND_COMMUNITY) && |
ad695d6e | 6893 | (!g_peer || peer_af_flag_check (g_peer, afi, safi, PEER_FLAG_SEND_COMMUNITY))) |
400b1fad DW |
6894 | { |
6895 | afi_header_vty_out (vty, afi, safi, write, | |
6896 | " no neighbor %s send-community%s", | |
6897 | addr, VTY_NEWLINE); | |
6898 | } | |
718e3744 | 6899 | } |
6900 | ||
6901 | /* Default information */ | |
88b8ed8d DW |
6902 | if (peergroup_af_flag_check (peer, afi, safi, PEER_FLAG_DEFAULT_ORIGINATE) || |
6903 | (g_peer && | |
6904 | ((peer->default_rmap[afi][safi].name && !g_peer->default_rmap[afi][safi].name) || | |
6905 | (!peer->default_rmap[afi][safi].name && g_peer->default_rmap[afi][safi].name) || | |
6906 | (peer->default_rmap[afi][safi].name && | |
6907 | strcmp(peer->default_rmap[afi][safi].name, g_peer->default_rmap[afi][safi].name))))) | |
718e3744 | 6908 | { |
400b1fad DW |
6909 | afi_header_vty_out (vty, afi, safi, write, |
6910 | " neighbor %s default-originate", addr); | |
718e3744 | 6911 | if (peer->default_rmap[afi][safi].name) |
88b8ed8d | 6912 | vty_out (vty, " route-map %s", peer->default_rmap[afi][safi].name); |
718e3744 | 6913 | vty_out (vty, "%s", VTY_NEWLINE); |
6914 | } | |
6915 | ||
6916 | /* Soft reconfiguration inbound. */ | |
88b8ed8d | 6917 | if (peergroup_af_flag_check (peer, afi, safi, PEER_FLAG_SOFT_RECONFIG)) |
400b1fad DW |
6918 | { |
6919 | afi_header_vty_out (vty, afi, safi, write, | |
6920 | " neighbor %s soft-reconfiguration inbound%s", | |
6921 | addr, VTY_NEWLINE); | |
6922 | } | |
718e3744 | 6923 | |
6924 | /* maximum-prefix. */ | |
6925 | if (CHECK_FLAG (peer->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX)) | |
c8560b44 | 6926 | if (! peer_group_active(peer) |
718e3744 | 6927 | || g_peer->pmax[afi][safi] != peer->pmax[afi][safi] |
e0701b79 | 6928 | || g_peer->pmax_threshold[afi][safi] != peer->pmax_threshold[afi][safi] |
718e3744 | 6929 | || CHECK_FLAG (g_peer->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX_WARNING) |
6930 | != CHECK_FLAG (peer->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX_WARNING)) | |
e0701b79 | 6931 | { |
400b1fad | 6932 | afi_header_vty_out (vty, afi, safi, write, |
85e11c23 | 6933 | " neighbor %s maximum-prefix %lu", |
400b1fad | 6934 | addr, peer->pmax[afi][safi]); |
0a486e5f | 6935 | if (peer->pmax_threshold[afi][safi] != MAXIMUM_PREFIX_THRESHOLD_DEFAULT) |
6936 | vty_out (vty, " %d", peer->pmax_threshold[afi][safi]); | |
6937 | if (CHECK_FLAG (peer->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX_WARNING)) | |
6938 | vty_out (vty, " warning-only"); | |
6939 | if (peer->pmax_restart[afi][safi]) | |
6940 | vty_out (vty, " restart %d", peer->pmax_restart[afi][safi]); | |
6941 | vty_out (vty, "%s", VTY_NEWLINE); | |
e0701b79 | 6942 | } |
718e3744 | 6943 | |
6944 | /* Route server client. */ | |
88b8ed8d | 6945 | if (peergroup_af_flag_check (peer, afi, safi, PEER_FLAG_RSERVER_CLIENT)) |
400b1fad DW |
6946 | { |
6947 | afi_header_vty_out (vty, afi, safi, write, | |
6948 | " neighbor %s route-server-client%s", | |
6949 | addr, VTY_NEWLINE); | |
6950 | } | |
718e3744 | 6951 | |
3cf1288b | 6952 | /* Nexthop-local unchanged. */ |
88b8ed8d | 6953 | if (peergroup_af_flag_check (peer, afi, safi, PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED)) |
400b1fad DW |
6954 | { |
6955 | afi_header_vty_out (vty, afi, safi, write, | |
6956 | " neighbor %s nexthop-local unchanged%s", | |
6957 | addr, VTY_NEWLINE); | |
6958 | } | |
3cf1288b | 6959 | |
718e3744 | 6960 | /* Allow AS in. */ |
6961 | if (peer_af_flag_check (peer, afi, safi, PEER_FLAG_ALLOWAS_IN)) | |
6962 | if (! peer_group_active (peer) | |
6963 | || ! peer_af_flag_check (g_peer, afi, safi, PEER_FLAG_ALLOWAS_IN) | |
6964 | || peer->allowas_in[afi][safi] != g_peer->allowas_in[afi][safi]) | |
6965 | { | |
6966 | if (peer->allowas_in[afi][safi] == 3) | |
400b1fad DW |
6967 | { |
6968 | afi_header_vty_out (vty, afi, safi, write, | |
6969 | " neighbor %s allowas-in%s", | |
6970 | addr, VTY_NEWLINE); | |
6971 | } | |
6972 | else | |
6973 | { | |
6974 | afi_header_vty_out (vty, afi, safi, write, | |
6975 | " neighbor %s allowas-in %d%s", | |
6976 | addr, peer->allowas_in[afi][safi], VTY_NEWLINE); | |
6977 | } | |
718e3744 | 6978 | } |
6979 | ||
6980 | /* Filter. */ | |
400b1fad | 6981 | bgp_config_write_filter (vty, peer, afi, safi, write); |
718e3744 | 6982 | |
6983 | /* atribute-unchanged. */ | |
88b8ed8d | 6984 | if (CHECK_FLAG (peer->af_flags[afi][safi], PEER_FLAG_AS_PATH_UNCHANGED) |
718e3744 | 6985 | || CHECK_FLAG (peer->af_flags[afi][safi], PEER_FLAG_NEXTHOP_UNCHANGED) |
6986 | || CHECK_FLAG (peer->af_flags[afi][safi], PEER_FLAG_MED_UNCHANGED)) | |
718e3744 | 6987 | { |
88b8ed8d DW |
6988 | if (peergroup_af_flag_check (peer, afi, safi, PEER_FLAG_AS_PATH_UNCHANGED) |
6989 | && peergroup_af_flag_check (peer, afi, safi, PEER_FLAG_NEXTHOP_UNCHANGED) | |
6990 | && peergroup_af_flag_check (peer, afi, safi, PEER_FLAG_MED_UNCHANGED)) | |
400b1fad DW |
6991 | { |
6992 | afi_header_vty_out (vty, afi, safi, write, | |
6993 | " neighbor %s attribute-unchanged%s", | |
6994 | addr, VTY_NEWLINE); | |
6995 | } | |
718e3744 | 6996 | else |
400b1fad DW |
6997 | { |
6998 | afi_header_vty_out (vty, afi, safi, write, | |
6999 | " neighbor %s attribute-unchanged%s%s%s%s", addr, | |
7000 | peergroup_af_flag_check (peer, afi, safi, PEER_FLAG_AS_PATH_UNCHANGED) ? | |
7001 | " as-path" : "", | |
7002 | peergroup_af_flag_check (peer, afi, safi, PEER_FLAG_NEXTHOP_UNCHANGED) ? | |
7003 | " next-hop" : "", | |
7004 | peergroup_af_flag_check (peer, afi, safi, PEER_FLAG_MED_UNCHANGED) ? | |
7005 | " med" : "", VTY_NEWLINE); | |
7006 | } | |
718e3744 | 7007 | } |
7008 | } | |
7009 | ||
7010 | /* Display "address-family" configuration header. */ | |
7011 | void | |
7012 | bgp_config_write_family_header (struct vty *vty, afi_t afi, safi_t safi, | |
7013 | int *write) | |
7014 | { | |
7015 | if (*write) | |
7016 | return; | |
7017 | ||
3914b418 | 7018 | vty_out (vty, " !%s address-family ", VTY_NEWLINE); |
718e3744 | 7019 | |
7020 | if (afi == AFI_IP) | |
7021 | { | |
0b960b4d DW |
7022 | if (safi == SAFI_UNICAST) |
7023 | vty_out (vty, "ipv4 unicast"); | |
7024 | else if (safi == SAFI_MULTICAST) | |
718e3744 | 7025 | vty_out (vty, "ipv4 multicast"); |
7026 | else if (safi == SAFI_MPLS_VPN) | |
8b1fb8be LB |
7027 | vty_out (vty, "vpnv4"); |
7028 | else if (safi == SAFI_ENCAP) | |
7029 | vty_out (vty, "encap"); | |
718e3744 | 7030 | } |
7031 | else if (afi == AFI_IP6) | |
37a217a5 | 7032 | { |
0b960b4d DW |
7033 | if (safi == SAFI_UNICAST) |
7034 | vty_out (vty, "ipv6 unicast"); | |
7035 | else if (safi == SAFI_MULTICAST) | |
7036 | vty_out (vty, "ipv6 multicast"); | |
8ecd3266 | 7037 | else if (safi == SAFI_MPLS_VPN) |
7038 | vty_out (vty, "vpnv6"); | |
8b1fb8be LB |
7039 | else if (safi == SAFI_ENCAP) |
7040 | vty_out (vty, "encapv6"); | |
37a217a5 | 7041 | } |
718e3744 | 7042 | |
7043 | vty_out (vty, "%s", VTY_NEWLINE); | |
7044 | ||
7045 | *write = 1; | |
7046 | } | |
7047 | ||
7048 | /* Address family based peer configuration display. */ | |
94f2b392 | 7049 | static int |
718e3744 | 7050 | bgp_config_write_family (struct vty *vty, struct bgp *bgp, afi_t afi, |
7051 | safi_t safi) | |
7052 | { | |
7053 | int write = 0; | |
7054 | struct peer *peer; | |
7055 | struct peer_group *group; | |
1eb8ef25 | 7056 | struct listnode *node, *nnode; |
718e3744 | 7057 | |
7058 | bgp_config_write_network (vty, bgp, afi, safi, &write); | |
7059 | ||
7060 | bgp_config_write_redistribute (vty, bgp, afi, safi, &write); | |
7061 | ||
1eb8ef25 | 7062 | for (ALL_LIST_ELEMENTS (bgp->group, node, nnode, group)) |
400b1fad DW |
7063 | bgp_config_write_peer_af (vty, bgp, group->conf, afi, safi, &write); |
7064 | ||
1eb8ef25 | 7065 | for (ALL_LIST_ELEMENTS (bgp->peer, node, nnode, peer)) |
718e3744 | 7066 | { |
f14e6fdb DS |
7067 | /* Skip dynamic neighbors. */ |
7068 | if (peer_dynamic_neighbor (peer)) | |
7069 | continue; | |
7070 | ||
400b1fad DW |
7071 | /* Do not display doppelganger peers */ |
7072 | if (CHECK_FLAG (peer->flags, PEER_FLAG_CONFIG_NODE)) | |
7073 | bgp_config_write_peer_af (vty, bgp, peer, afi, safi, &write); | |
718e3744 | 7074 | } |
165b5fff JB |
7075 | |
7076 | bgp_config_write_maxpaths (vty, bgp, afi, safi, &write); | |
73ac8160 | 7077 | bgp_config_write_table_map (vty, bgp, afi, safi, &write); |
165b5fff | 7078 | |
718e3744 | 7079 | if (write) |
7080 | vty_out (vty, " exit-address-family%s", VTY_NEWLINE); | |
7081 | ||
7082 | return write; | |
7083 | } | |
7084 | ||
7085 | int | |
7086 | bgp_config_write (struct vty *vty) | |
7087 | { | |
7088 | int write = 0; | |
7089 | struct bgp *bgp; | |
7090 | struct peer_group *group; | |
7091 | struct peer *peer; | |
1eb8ef25 | 7092 | struct listnode *node, *nnode; |
7093 | struct listnode *mnode, *mnnode; | |
718e3744 | 7094 | |
7095 | /* BGP Multiple instance. */ | |
b8fd6a15 | 7096 | if (!bgp_option_check (BGP_OPT_MULTIPLE_INSTANCE)) |
718e3744 | 7097 | { |
b8fd6a15 | 7098 | vty_out (vty, "no bgp multiple-instance%s", VTY_NEWLINE); |
718e3744 | 7099 | write++; |
7100 | } | |
7101 | ||
7102 | /* BGP Config type. */ | |
7103 | if (bgp_option_check (BGP_OPT_CONFIG_CISCO)) | |
7104 | { | |
7105 | vty_out (vty, "bgp config-type cisco%s", VTY_NEWLINE); | |
7106 | write++; | |
7107 | } | |
7108 | ||
5fe9f963 | 7109 | if (bm->rmap_update_timer != RMAP_DEFAULT_UPDATE_TIMER) |
7110 | vty_out (vty, "bgp route-map delay-timer %d%s", bm->rmap_update_timer, | |
7111 | VTY_NEWLINE); | |
7112 | ||
718e3744 | 7113 | /* BGP configuration. */ |
1eb8ef25 | 7114 | for (ALL_LIST_ELEMENTS (bm->bgp, mnode, mnnode, bgp)) |
718e3744 | 7115 | { |
7116 | if (write) | |
7117 | vty_out (vty, "!%s", VTY_NEWLINE); | |
7118 | ||
7119 | /* Router bgp ASN */ | |
aea339f7 | 7120 | vty_out (vty, "router bgp %u", bgp->as); |
718e3744 | 7121 | |
7122 | if (bgp_option_check (BGP_OPT_MULTIPLE_INSTANCE)) | |
7123 | { | |
7124 | if (bgp->name) | |
ad4cbda1 | 7125 | vty_out (vty, " %s %s", |
7126 | (bgp->inst_type == BGP_INSTANCE_TYPE_VIEW) ? | |
7127 | "view" : "vrf", bgp->name); | |
718e3744 | 7128 | } |
7129 | vty_out (vty, "%s", VTY_NEWLINE); | |
7130 | ||
7131 | /* No Synchronization */ | |
7132 | if (bgp_option_check (BGP_OPT_CONFIG_CISCO)) | |
7133 | vty_out (vty, " no synchronization%s", VTY_NEWLINE); | |
7134 | ||
7135 | /* BGP fast-external-failover. */ | |
7136 | if (CHECK_FLAG (bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) | |
7137 | vty_out (vty, " no bgp fast-external-failover%s", VTY_NEWLINE); | |
7138 | ||
7139 | /* BGP router ID. */ | |
c2d58d6d | 7140 | if (bgp->router_id_static.s_addr != 0) |
7141 | vty_out (vty, " bgp router-id %s%s", | |
7142 | inet_ntoa (bgp->router_id_static), VTY_NEWLINE); | |
718e3744 | 7143 | |
848973c7 | 7144 | /* BGP log-neighbor-changes. */ |
6793fbe0 DW |
7145 | if (!bgp_flag_check (bgp, BGP_FLAG_LOG_NEIGHBOR_CHANGES)) |
7146 | vty_out (vty, " no bgp log-neighbor-changes%s", VTY_NEWLINE); | |
848973c7 | 7147 | |
718e3744 | 7148 | /* BGP configuration. */ |
7149 | if (bgp_flag_check (bgp, BGP_FLAG_ALWAYS_COMPARE_MED)) | |
7150 | vty_out (vty, " bgp always-compare-med%s", VTY_NEWLINE); | |
7151 | ||
7152 | /* BGP default ipv4-unicast. */ | |
7153 | if (bgp_flag_check (bgp, BGP_FLAG_NO_DEFAULT_IPV4)) | |
7154 | vty_out (vty, " no bgp default ipv4-unicast%s", VTY_NEWLINE); | |
7155 | ||
7156 | /* BGP default local-preference. */ | |
7157 | if (bgp->default_local_pref != BGP_DEFAULT_LOCAL_PREF) | |
7158 | vty_out (vty, " bgp default local-preference %d%s", | |
7159 | bgp->default_local_pref, VTY_NEWLINE); | |
7160 | ||
04b6bdc0 | 7161 | /* BGP default show-hostname */ |
15f3b5c0 DW |
7162 | if (!bgp_flag_check(bgp, BGP_FLAG_SHOW_HOSTNAME)) |
7163 | vty_out (vty, " no bgp default show-hostname%s", VTY_NEWLINE); | |
04b6bdc0 | 7164 | |
3f9c7369 DS |
7165 | /* BGP default subgroup-pkt-queue-max. */ |
7166 | if (bgp->default_subgroup_pkt_queue_max != BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX) | |
7167 | vty_out (vty, " bgp default subgroup-pkt-queue-max %d%s", | |
7168 | bgp->default_subgroup_pkt_queue_max, VTY_NEWLINE); | |
7169 | ||
718e3744 | 7170 | /* BGP client-to-client reflection. */ |
7171 | if (bgp_flag_check (bgp, BGP_FLAG_NO_CLIENT_TO_CLIENT)) | |
7172 | vty_out (vty, " no bgp client-to-client reflection%s", VTY_NEWLINE); | |
7173 | ||
7174 | /* BGP cluster ID. */ | |
7175 | if (CHECK_FLAG (bgp->config, BGP_CONFIG_CLUSTER_ID)) | |
7176 | vty_out (vty, " bgp cluster-id %s%s", inet_ntoa (bgp->cluster_id), | |
7177 | VTY_NEWLINE); | |
7178 | ||
907f92c8 DS |
7179 | /* Disable ebgp connected nexthop check */ |
7180 | if (bgp_flag_check (bgp, BGP_FLAG_DISABLE_NH_CONNECTED_CHK)) | |
7181 | vty_out (vty, " bgp disable-ebgp-connected-route-check%s", VTY_NEWLINE); | |
7182 | ||
e0701b79 | 7183 | /* Confederation identifier*/ |
718e3744 | 7184 | if (CHECK_FLAG (bgp->config, BGP_CONFIG_CONFEDERATION)) |
e0701b79 | 7185 | vty_out (vty, " bgp confederation identifier %i%s", bgp->confed_id, |
7186 | VTY_NEWLINE); | |
7187 | ||
7188 | /* Confederation peer */ | |
7189 | if (bgp->confed_peers_cnt > 0) | |
718e3744 | 7190 | { |
e0701b79 | 7191 | int i; |
718e3744 | 7192 | |
e0701b79 | 7193 | vty_out (vty, " bgp confederation peers"); |
718e3744 | 7194 | |
e0701b79 | 7195 | for (i = 0; i < bgp->confed_peers_cnt; i++) |
aea339f7 | 7196 | vty_out(vty, " %u", bgp->confed_peers[i]); |
718e3744 | 7197 | |
e0701b79 | 7198 | vty_out (vty, "%s", VTY_NEWLINE); |
718e3744 | 7199 | } |
7200 | ||
7201 | /* BGP enforce-first-as. */ | |
7202 | if (bgp_flag_check (bgp, BGP_FLAG_ENFORCE_FIRST_AS)) | |
7203 | vty_out (vty, " bgp enforce-first-as%s", VTY_NEWLINE); | |
7204 | ||
7205 | /* BGP deterministic-med. */ | |
1475ac87 DW |
7206 | if (!bgp_flag_check (bgp, BGP_FLAG_DETERMINISTIC_MED)) |
7207 | vty_out (vty, " no bgp deterministic-med%s", VTY_NEWLINE); | |
538621f2 | 7208 | |
f188f2c4 DS |
7209 | /* BGP update-delay. */ |
7210 | bgp_config_write_update_delay (vty, bgp); | |
7211 | ||
abc920f8 DS |
7212 | if (bgp->v_maxmed_onstartup != BGP_MAXMED_ONSTARTUP_UNCONFIGURED) |
7213 | { | |
7214 | vty_out (vty, " bgp max-med on-startup %d", bgp->v_maxmed_onstartup); | |
7215 | if (bgp->maxmed_onstartup_value != BGP_MAXMED_VALUE_DEFAULT) | |
7216 | vty_out (vty, " %d", bgp->maxmed_onstartup_value); | |
7217 | vty_out (vty, "%s", VTY_NEWLINE); | |
7218 | } | |
7219 | if (bgp->v_maxmed_admin != BGP_MAXMED_ADMIN_UNCONFIGURED) | |
7220 | { | |
7221 | vty_out (vty, " bgp max-med administrative"); | |
7222 | if (bgp->maxmed_admin_value != BGP_MAXMED_VALUE_DEFAULT) | |
7223 | vty_out (vty, " %d", bgp->maxmed_admin_value); | |
7224 | vty_out (vty, "%s", VTY_NEWLINE); | |
7225 | } | |
7226 | ||
cb1faec9 DS |
7227 | /* write quanta */ |
7228 | bgp_config_write_wpkt_quanta (vty, bgp); | |
7229 | ||
3f9c7369 DS |
7230 | /* coalesce time */ |
7231 | bgp_config_write_coalesce_time(vty, bgp); | |
7232 | ||
538621f2 | 7233 | /* BGP graceful-restart. */ |
93406d87 | 7234 | if (bgp->stalepath_time != BGP_DEFAULT_STALEPATH_TIME) |
7235 | vty_out (vty, " bgp graceful-restart stalepath-time %d%s", | |
7236 | bgp->stalepath_time, VTY_NEWLINE); | |
eb6f1b41 PG |
7237 | if (bgp->restart_time != BGP_DEFAULT_RESTART_TIME) |
7238 | vty_out (vty, " bgp graceful-restart restart-time %d%s", | |
7239 | bgp->restart_time, VTY_NEWLINE); | |
538621f2 | 7240 | if (bgp_flag_check (bgp, BGP_FLAG_GRACEFUL_RESTART)) |
7241 | vty_out (vty, " bgp graceful-restart%s", VTY_NEWLINE); | |
7242 | ||
718e3744 | 7243 | /* BGP bestpath method. */ |
7244 | if (bgp_flag_check (bgp, BGP_FLAG_ASPATH_IGNORE)) | |
7245 | vty_out (vty, " bgp bestpath as-path ignore%s", VTY_NEWLINE); | |
6811845b | 7246 | if (bgp_flag_check (bgp, BGP_FLAG_ASPATH_CONFED)) |
7247 | vty_out (vty, " bgp bestpath as-path confed%s", VTY_NEWLINE); | |
16fc1eec | 7248 | |
219178b6 DW |
7249 | if (bgp_flag_check (bgp, BGP_FLAG_ASPATH_MULTIPATH_RELAX)) |
7250 | { | |
7251 | if (bgp_flag_check (bgp, BGP_FLAG_MULTIPATH_RELAX_AS_SET)) | |
7252 | { | |
7253 | vty_out (vty, " bgp bestpath as-path multipath-relax as-set%s", VTY_NEWLINE); | |
7254 | } | |
7dc9d4e4 DW |
7255 | else |
7256 | { | |
7257 | vty_out (vty, " bgp bestpath as-path multipath-relax%s", VTY_NEWLINE); | |
7258 | } | |
16fc1eec | 7259 | } |
16fc1eec | 7260 | |
8bd9d948 DS |
7261 | if (bgp_flag_check (bgp, BGP_FLAG_RR_ALLOW_OUTBOUND_POLICY)) { |
7262 | vty_out (vty, " bgp route-reflector allow-outbound-policy%s", | |
7263 | VTY_NEWLINE); | |
7264 | } | |
718e3744 | 7265 | if (bgp_flag_check (bgp, BGP_FLAG_COMPARE_ROUTER_ID)) |
7266 | vty_out (vty, " bgp bestpath compare-routerid%s", VTY_NEWLINE); | |
7267 | if (bgp_flag_check (bgp, BGP_FLAG_MED_CONFED) | |
7268 | || bgp_flag_check (bgp, BGP_FLAG_MED_MISSING_AS_WORST)) | |
7269 | { | |
7270 | vty_out (vty, " bgp bestpath med"); | |
7271 | if (bgp_flag_check (bgp, BGP_FLAG_MED_CONFED)) | |
7272 | vty_out (vty, " confed"); | |
7273 | if (bgp_flag_check (bgp, BGP_FLAG_MED_MISSING_AS_WORST)) | |
7274 | vty_out (vty, " missing-as-worst"); | |
7275 | vty_out (vty, "%s", VTY_NEWLINE); | |
7276 | } | |
7277 | ||
7278 | /* BGP network import check. */ | |
5623e905 DW |
7279 | if (!bgp_flag_check (bgp, BGP_FLAG_IMPORT_CHECK)) |
7280 | vty_out (vty, " no bgp network import-check%s", VTY_NEWLINE); | |
718e3744 | 7281 | |
718e3744 | 7282 | /* BGP flag dampening. */ |
7283 | if (CHECK_FLAG (bgp->af_flags[AFI_IP][SAFI_UNICAST], | |
7284 | BGP_CONFIG_DAMPENING)) | |
7285 | bgp_config_write_damp (vty); | |
7286 | ||
718e3744 | 7287 | /* BGP timers configuration. */ |
7288 | if (bgp->default_keepalive != BGP_DEFAULT_KEEPALIVE | |
7289 | && bgp->default_holdtime != BGP_DEFAULT_HOLDTIME) | |
7290 | vty_out (vty, " timers bgp %d %d%s", bgp->default_keepalive, | |
7291 | bgp->default_holdtime, VTY_NEWLINE); | |
7292 | ||
7293 | /* peer-group */ | |
1eb8ef25 | 7294 | for (ALL_LIST_ELEMENTS (bgp->group, node, nnode, group)) |
718e3744 | 7295 | { |
0b960b4d | 7296 | bgp_config_write_peer_global (vty, bgp, group->conf); |
718e3744 | 7297 | } |
7298 | ||
7299 | /* Normal neighbor configuration. */ | |
1eb8ef25 | 7300 | for (ALL_LIST_ELEMENTS (bgp->peer, node, nnode, peer)) |
718e3744 | 7301 | { |
1ff9a340 | 7302 | if (CHECK_FLAG (peer->flags, PEER_FLAG_CONFIG_NODE)) |
0b960b4d | 7303 | bgp_config_write_peer_global (vty, bgp, peer); |
718e3744 | 7304 | } |
7305 | ||
7306 | /* Distance configuration. */ | |
7307 | bgp_config_write_distance (vty, bgp); | |
7308 | ||
f14e6fdb DS |
7309 | /* listen range and limit for dynamic BGP neighbors */ |
7310 | bgp_config_write_listen (vty, bgp); | |
7311 | ||
718e3744 | 7312 | /* No auto-summary */ |
7313 | if (bgp_option_check (BGP_OPT_CONFIG_CISCO)) | |
7314 | vty_out (vty, " no auto-summary%s", VTY_NEWLINE); | |
7315 | ||
0b960b4d DW |
7316 | /* IPv4 unicast configuration. */ |
7317 | write += bgp_config_write_family (vty, bgp, AFI_IP, SAFI_UNICAST); | |
7318 | ||
718e3744 | 7319 | /* IPv4 multicast configuration. */ |
7320 | write += bgp_config_write_family (vty, bgp, AFI_IP, SAFI_MULTICAST); | |
7321 | ||
7322 | /* IPv4 VPN configuration. */ | |
7323 | write += bgp_config_write_family (vty, bgp, AFI_IP, SAFI_MPLS_VPN); | |
7324 | ||
8b1fb8be LB |
7325 | /* ENCAPv4 configuration. */ |
7326 | write += bgp_config_write_family (vty, bgp, AFI_IP, SAFI_ENCAP); | |
7327 | ||
718e3744 | 7328 | /* IPv6 unicast configuration. */ |
7329 | write += bgp_config_write_family (vty, bgp, AFI_IP6, SAFI_UNICAST); | |
7330 | ||
37a217a5 PJ |
7331 | /* IPv6 multicast configuration. */ |
7332 | write += bgp_config_write_family (vty, bgp, AFI_IP6, SAFI_MULTICAST); | |
7333 | ||
8ecd3266 | 7334 | /* IPv6 VPN configuration. */ |
7335 | write += bgp_config_write_family (vty, bgp, AFI_IP6, SAFI_MPLS_VPN); | |
7336 | ||
8b1fb8be LB |
7337 | /* ENCAPv6 configuration. */ |
7338 | write += bgp_config_write_family (vty, bgp, AFI_IP6, SAFI_ENCAP); | |
7339 | ||
718e3744 | 7340 | write++; |
7341 | } | |
7342 | return write; | |
7343 | } | |
7344 | ||
7345 | void | |
94f2b392 | 7346 | bgp_master_init (void) |
718e3744 | 7347 | { |
7348 | memset (&bgp_master, 0, sizeof (struct bgp_master)); | |
7349 | ||
7350 | bm = &bgp_master; | |
7351 | bm->bgp = list_new (); | |
0df7c91f | 7352 | bm->listen_sockets = list_new (); |
718e3744 | 7353 | bm->port = BGP_PORT_DEFAULT; |
87d4a781 | 7354 | bm->master = thread_master_create (); |
65957886 | 7355 | bm->start_time = bgp_clock (); |
5fe9f963 | 7356 | bm->t_rmap_update = NULL; |
7357 | bm->rmap_update_timer = RMAP_DEFAULT_UPDATE_TIMER; | |
495f0b13 DS |
7358 | |
7359 | bgp_process_queue_init(); | |
b8fd6a15 | 7360 | |
7361 | /* Enable multiple instances by default. */ | |
7362 | bgp_option_set (BGP_OPT_MULTIPLE_INSTANCE); | |
718e3744 | 7363 | } |
200df115 | 7364 | |
b33adb7c | 7365 | /* |
7366 | * Initialize interface list for instance, if needed. Invoked upon | |
7367 | * instance create. | |
7368 | */ | |
7369 | static void | |
7370 | bgp_if_init (struct bgp *bgp) | |
7371 | { | |
7372 | if (bgp->inst_type == BGP_INSTANCE_TYPE_VIEW) | |
7373 | return; | |
7374 | ||
7375 | vrf_iflist_create (bgp->vrf_id); | |
7376 | } | |
7377 | ||
ad4cbda1 | 7378 | /* |
009b18fc | 7379 | * Free up connected routes and interfaces for a BGP instance. Invoked upon |
7380 | * instance delete (non-default only) or BGP exit. | |
ad4cbda1 | 7381 | */ |
b33adb7c | 7382 | static void |
009b18fc | 7383 | bgp_if_finish (struct bgp *bgp) |
ad4cbda1 | 7384 | { |
009b18fc | 7385 | struct listnode *ifnode, *ifnnode; |
7386 | struct interface *ifp; | |
ad4cbda1 | 7387 | |
009b18fc | 7388 | if (bgp->inst_type == BGP_INSTANCE_TYPE_VIEW) |
7389 | return; | |
ad4cbda1 | 7390 | |
009b18fc | 7391 | for (ALL_LIST_ELEMENTS (vrf_iflist(bgp->vrf_id), ifnode, ifnnode, ifp)) |
7392 | { | |
7393 | struct listnode *c_node, *c_nnode; | |
7394 | struct connected *c; | |
ad4cbda1 | 7395 | |
009b18fc | 7396 | for (ALL_LIST_ELEMENTS (ifp->connected, c_node, c_nnode, c)) |
7397 | bgp_connected_delete (bgp, c); | |
ad4cbda1 | 7398 | } |
7399 | } | |
6b0655a2 | 7400 | |
718e3744 | 7401 | void |
94f2b392 | 7402 | bgp_init (void) |
718e3744 | 7403 | { |
fc9a856f DS |
7404 | |
7405 | /* allocates some vital data structures used by peer commands in vty_init */ | |
718e3744 | 7406 | |
718e3744 | 7407 | /* Init zebra. */ |
9229d914 | 7408 | bgp_zebra_init(bm->master); |
718e3744 | 7409 | |
fc9a856f DS |
7410 | /* BGP VTY commands installation. */ |
7411 | bgp_vty_init (); | |
7412 | ||
718e3744 | 7413 | /* BGP inits. */ |
7414 | bgp_attr_init (); | |
7415 | bgp_debug_init (); | |
7416 | bgp_dump_init (); | |
7417 | bgp_route_init (); | |
7418 | bgp_route_map_init (); | |
fc9a856f | 7419 | bgp_scan_vty_init(); |
718e3744 | 7420 | bgp_mplsvpn_init (); |
587ff0fd | 7421 | bgp_encap_init (); |
718e3744 | 7422 | |
7423 | /* Access list initialize. */ | |
7424 | access_list_init (); | |
7425 | access_list_add_hook (peer_distribute_update); | |
7426 | access_list_delete_hook (peer_distribute_update); | |
7427 | ||
7428 | /* Filter list initialize. */ | |
7429 | bgp_filter_init (); | |
518f0eb1 DS |
7430 | as_list_add_hook (peer_aslist_add); |
7431 | as_list_delete_hook (peer_aslist_del); | |
718e3744 | 7432 | |
7433 | /* Prefix list initialize.*/ | |
7434 | prefix_list_init (); | |
7435 | prefix_list_add_hook (peer_prefix_list_update); | |
7436 | prefix_list_delete_hook (peer_prefix_list_update); | |
7437 | ||
7438 | /* Community list initialize. */ | |
7439 | bgp_clist = community_list_init (); | |
7440 | ||
7441 | #ifdef HAVE_SNMP | |
7442 | bgp_snmp_init (); | |
7443 | #endif /* HAVE_SNMP */ | |
c43ed2e4 DS |
7444 | |
7445 | /* BFD init */ | |
7446 | bgp_bfd_init(); | |
718e3744 | 7447 | } |
545acafb | 7448 | |
7449 | void | |
66e5cd87 | 7450 | bgp_terminate (void) |
545acafb | 7451 | { |
545acafb | 7452 | struct bgp *bgp; |
7453 | struct peer *peer; | |
1eb8ef25 | 7454 | struct listnode *node, *nnode; |
7455 | struct listnode *mnode, *mnnode; | |
545acafb | 7456 | |
1ff9a340 DS |
7457 | /* Close the listener sockets first as this prevents peers from attempting |
7458 | * to reconnect on receiving the peer unconfig message. In the presence | |
7459 | * of a large number of peers this will ensure that no peer is left with | |
7460 | * a dangling connection | |
7461 | */ | |
7462 | /* reverse bgp_master_init */ | |
7463 | bgp_close(); | |
7464 | if (bm->listen_sockets) | |
7465 | list_free(bm->listen_sockets); | |
7466 | bm->listen_sockets = NULL; | |
7467 | ||
1eb8ef25 | 7468 | for (ALL_LIST_ELEMENTS (bm->bgp, mnode, mnnode, bgp)) |
7469 | for (ALL_LIST_ELEMENTS (bgp->peer, node, nnode, peer)) | |
1ff9a340 DS |
7470 | if (peer->status == Established || |
7471 | peer->status == OpenSent || | |
7472 | peer->status == OpenConfirm) | |
545acafb | 7473 | bgp_notify_send (peer, BGP_NOTIFY_CEASE, |
7474 | BGP_NOTIFY_CEASE_PEER_UNCONFIG); | |
1ff9a340 | 7475 | |
545acafb | 7476 | bgp_cleanup_routes (); |
acde4b86 | 7477 | |
e210cf9f | 7478 | if (bm->process_main_queue) |
acde4b86 SH |
7479 | { |
7480 | work_queue_free (bm->process_main_queue); | |
7481 | bm->process_main_queue = NULL; | |
7482 | } | |
5fe9f963 | 7483 | |
7484 | if (bm->t_rmap_update) | |
7485 | BGP_TIMER_OFF(bm->t_rmap_update); | |
545acafb | 7486 | } |