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718e3744 | 1 | /* BGP-4, BGP-4+ daemon program |
896014f4 DL |
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 | * | |
16 | * You should have received a copy of the GNU General Public License along | |
17 | * with this program; see the file COPYING; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
718e3744 | 20 | |
21 | #include <zebra.h> | |
22 | ||
23 | #include "prefix.h" | |
24 | #include "thread.h" | |
25 | #include "buffer.h" | |
26 | #include "stream.h" | |
74ffbfe6 | 27 | #include "ringbuf.h" |
718e3744 | 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" | |
718e3744 | 35 | #include "log.h" |
36 | #include "plist.h" | |
37 | #include "linklist.h" | |
200df115 | 38 | #include "workqueue.h" |
3f9c7369 | 39 | #include "queue.h" |
88177fe3 | 40 | #include "zclient.h" |
7f342629 | 41 | #include "bfd.h" |
dd793e4a DW |
42 | #include "hash.h" |
43 | #include "jhash.h" | |
587ff0fd | 44 | #include "table.h" |
4dcadbef | 45 | #include "lib/json.h" |
0ca8b79f | 46 | #include "frr_pthread.h" |
718e3744 | 47 | |
48 | #include "bgpd/bgpd.h" | |
49 | #include "bgpd/bgp_table.h" | |
50 | #include "bgpd/bgp_aspath.h" | |
51 | #include "bgpd/bgp_route.h" | |
52 | #include "bgpd/bgp_dump.h" | |
53 | #include "bgpd/bgp_debug.h" | |
54 | #include "bgpd/bgp_community.h" | |
55 | #include "bgpd/bgp_attr.h" | |
56 | #include "bgpd/bgp_regex.h" | |
57 | #include "bgpd/bgp_clist.h" | |
58 | #include "bgpd/bgp_fsm.h" | |
59 | #include "bgpd/bgp_packet.h" | |
60 | #include "bgpd/bgp_zebra.h" | |
61 | #include "bgpd/bgp_open.h" | |
62 | #include "bgpd/bgp_filter.h" | |
63 | #include "bgpd/bgp_nexthop.h" | |
64 | #include "bgpd/bgp_damp.h" | |
65 | #include "bgpd/bgp_mplsvpn.h" | |
65efcfce | 66 | #if ENABLE_BGP_VNC |
f8b6f499 LB |
67 | #include "bgpd/rfapi/bgp_rfapi_cfg.h" |
68 | #include "bgpd/rfapi/rfapi_backend.h" | |
65efcfce | 69 | #endif |
7ef5a232 | 70 | #include "bgpd/bgp_evpn.h" |
718e3744 | 71 | #include "bgpd/bgp_advertise.h" |
72 | #include "bgpd/bgp_network.h" | |
73 | #include "bgpd/bgp_vty.h" | |
165b5fff | 74 | #include "bgpd/bgp_mpath.h" |
fc9a856f | 75 | #include "bgpd/bgp_nht.h" |
3f9c7369 | 76 | #include "bgpd/bgp_updgrp.h" |
c43ed2e4 | 77 | #include "bgpd/bgp_bfd.h" |
4a1ab8e4 | 78 | #include "bgpd/bgp_memory.h" |
784d3a42 | 79 | #include "bgpd/bgp_evpn_vty.h" |
2d4ee774 | 80 | #include "bgpd/bgp_keepalives.h" |
56257a44 | 81 | #include "bgpd/bgp_io.h" |
41d6d607 | 82 | #include "bgpd/bgp_ecommunity.h" |
7c40bf39 | 83 | #include "bgpd/bgp_flowspec.h" |
84 | ||
73d70fa6 DL |
85 | |
86 | DEFINE_MTYPE_STATIC(BGPD, PEER_TX_SHUTDOWN_MSG, "Peer shutdown message (TX)"); | |
19df7279 DL |
87 | DEFINE_QOBJ_TYPE(bgp_master) |
88 | DEFINE_QOBJ_TYPE(bgp) | |
89 | DEFINE_QOBJ_TYPE(peer) | |
90 | ||
718e3744 | 91 | /* BGP process wide configuration. */ |
92 | static struct bgp_master bgp_master; | |
93 | ||
94 | /* BGP process wide configuration pointer to export. */ | |
95 | struct bgp_master *bm; | |
96 | ||
97 | /* BGP community-list. */ | |
98 | struct community_list_handler *bgp_clist; | |
6b0655a2 | 99 | |
37fe7731 DS |
100 | unsigned int multipath_num = MULTIPATH_NUM; |
101 | ||
d62a17ae | 102 | static void bgp_if_finish(struct bgp *bgp); |
b33adb7c | 103 | |
ad4cbda1 | 104 | extern struct zclient *zclient; |
1ff9a340 | 105 | |
e5619c28 PG |
106 | /* handle main socket creation or deletion */ |
107 | static int bgp_check_main_socket(bool create, struct bgp *bgp) | |
108 | { | |
109 | static int bgp_server_main_created; | |
110 | struct listnode *bgpnode, *nbgpnode; | |
111 | struct bgp *bgp_temp; | |
112 | ||
85f87e0e PG |
113 | if (bgp->inst_type == BGP_INSTANCE_TYPE_VRF && |
114 | vrf_is_mapped_on_netns(bgp->vrf_id)) | |
e5619c28 PG |
115 | return 0; |
116 | if (create == true) { | |
117 | if (bgp_server_main_created) | |
118 | return 0; | |
119 | if (bgp_socket(bgp, bm->port, bm->address) < 0) | |
120 | return BGP_ERR_INVALID_VALUE; | |
121 | bgp_server_main_created = 1; | |
122 | return 0; | |
123 | } | |
124 | if (!bgp_server_main_created) | |
125 | return 0; | |
126 | /* only delete socket on some cases */ | |
127 | for (ALL_LIST_ELEMENTS(bm->bgp, bgpnode, nbgpnode, bgp_temp)) { | |
128 | /* do not count with current bgp */ | |
129 | if (bgp_temp == bgp) | |
130 | continue; | |
131 | /* if other instance non VRF, do not delete socket */ | |
132 | if (bgp_temp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
133 | return 0; | |
134 | /* vrf lite, do not delete socket */ | |
135 | if (!vrf_is_mapped_on_netns(bgp_temp->vrf_id)) | |
136 | return 0; | |
137 | } | |
138 | bgp_close(); | |
139 | bgp_server_main_created = 0; | |
140 | return 0; | |
141 | } | |
142 | ||
d62a17ae | 143 | void bgp_session_reset(struct peer *peer) |
1ff9a340 | 144 | { |
d62a17ae | 145 | if (peer->doppelganger && (peer->doppelganger->status != Deleted) |
146 | && !(CHECK_FLAG(peer->doppelganger->flags, PEER_FLAG_CONFIG_NODE))) | |
147 | peer_delete(peer->doppelganger); | |
1ff9a340 | 148 | |
d62a17ae | 149 | BGP_EVENT_ADD(peer, BGP_Stop); |
1ff9a340 DS |
150 | } |
151 | ||
152 | /* | |
153 | * During session reset, we may delete the doppelganger peer, which would | |
154 | * be the next node to the current node. If the session reset was invoked | |
155 | * during walk of peer list, we would end up accessing the freed next | |
156 | * node. This function moves the next node along. | |
157 | */ | |
d62a17ae | 158 | static void bgp_session_reset_safe(struct peer *peer, struct listnode **nnode) |
1ff9a340 | 159 | { |
d62a17ae | 160 | struct listnode *n; |
161 | struct peer *npeer; | |
1ff9a340 | 162 | |
d62a17ae | 163 | n = (nnode) ? *nnode : NULL; |
164 | npeer = (n) ? listgetdata(n) : NULL; | |
1ff9a340 | 165 | |
d62a17ae | 166 | if (peer->doppelganger && (peer->doppelganger->status != Deleted) |
167 | && !(CHECK_FLAG(peer->doppelganger->flags, | |
168 | PEER_FLAG_CONFIG_NODE))) { | |
169 | if (peer->doppelganger == npeer) | |
170 | /* nnode and *nnode are confirmed to be non-NULL here */ | |
171 | *nnode = (*nnode)->next; | |
172 | peer_delete(peer->doppelganger); | |
173 | } | |
1ff9a340 | 174 | |
d62a17ae | 175 | BGP_EVENT_ADD(peer, BGP_Stop); |
1ff9a340 DS |
176 | } |
177 | ||
718e3744 | 178 | /* BGP global flag manipulation. */ |
d62a17ae | 179 | int bgp_option_set(int flag) |
180 | { | |
181 | switch (flag) { | |
182 | case BGP_OPT_NO_FIB: | |
183 | case BGP_OPT_MULTIPLE_INSTANCE: | |
184 | case BGP_OPT_CONFIG_CISCO: | |
185 | case BGP_OPT_NO_LISTEN: | |
186 | SET_FLAG(bm->options, flag); | |
187 | break; | |
188 | default: | |
189 | return BGP_ERR_INVALID_FLAG; | |
190 | } | |
191 | return 0; | |
192 | } | |
193 | ||
194 | int bgp_option_unset(int flag) | |
195 | { | |
196 | switch (flag) { | |
197 | case BGP_OPT_MULTIPLE_INSTANCE: | |
198 | if (listcount(bm->bgp) > 1) | |
199 | return BGP_ERR_MULTIPLE_INSTANCE_USED; | |
200 | /* Fall through. */ | |
201 | case BGP_OPT_NO_FIB: | |
202 | case BGP_OPT_CONFIG_CISCO: | |
203 | UNSET_FLAG(bm->options, flag); | |
204 | break; | |
205 | default: | |
206 | return BGP_ERR_INVALID_FLAG; | |
207 | } | |
208 | return 0; | |
209 | } | |
210 | ||
211 | int bgp_option_check(int flag) | |
212 | { | |
213 | return CHECK_FLAG(bm->options, flag); | |
718e3744 | 214 | } |
6b0655a2 | 215 | |
718e3744 | 216 | /* BGP flag manipulation. */ |
d62a17ae | 217 | int bgp_flag_set(struct bgp *bgp, int flag) |
718e3744 | 218 | { |
d62a17ae | 219 | SET_FLAG(bgp->flags, flag); |
220 | return 0; | |
718e3744 | 221 | } |
222 | ||
d62a17ae | 223 | int bgp_flag_unset(struct bgp *bgp, int flag) |
718e3744 | 224 | { |
d62a17ae | 225 | UNSET_FLAG(bgp->flags, flag); |
226 | return 0; | |
718e3744 | 227 | } |
228 | ||
d62a17ae | 229 | int bgp_flag_check(struct bgp *bgp, int flag) |
718e3744 | 230 | { |
d62a17ae | 231 | return CHECK_FLAG(bgp->flags, flag); |
718e3744 | 232 | } |
6b0655a2 | 233 | |
718e3744 | 234 | /* Internal function to set BGP structure configureation flag. */ |
d62a17ae | 235 | static void bgp_config_set(struct bgp *bgp, int config) |
718e3744 | 236 | { |
d62a17ae | 237 | SET_FLAG(bgp->config, config); |
718e3744 | 238 | } |
239 | ||
d62a17ae | 240 | static void bgp_config_unset(struct bgp *bgp, int config) |
718e3744 | 241 | { |
d62a17ae | 242 | UNSET_FLAG(bgp->config, config); |
718e3744 | 243 | } |
244 | ||
d62a17ae | 245 | static int bgp_config_check(struct bgp *bgp, int config) |
718e3744 | 246 | { |
d62a17ae | 247 | return CHECK_FLAG(bgp->config, config); |
718e3744 | 248 | } |
6b0655a2 | 249 | |
718e3744 | 250 | /* Set BGP router identifier. */ |
d62a17ae | 251 | static int bgp_router_id_set(struct bgp *bgp, const struct in_addr *id) |
718e3744 | 252 | { |
d62a17ae | 253 | struct peer *peer; |
254 | struct listnode *node, *nnode; | |
718e3744 | 255 | |
d62a17ae | 256 | if (IPV4_ADDR_SAME(&bgp->router_id, id)) |
257 | return 0; | |
718e3744 | 258 | |
d62a17ae | 259 | /* EVPN uses router id in RD, withdraw them */ |
94c2f693 | 260 | if (is_evpn_enabled()) |
d62a17ae | 261 | bgp_evpn_handle_router_id_update(bgp, TRUE); |
2d48ee25 | 262 | |
d62a17ae | 263 | IPV4_ADDR_COPY(&bgp->router_id, id); |
718e3744 | 264 | |
d62a17ae | 265 | /* Set all peer's local identifier with this value. */ |
266 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
267 | IPV4_ADDR_COPY(&peer->local_id, id); | |
718e3744 | 268 | |
d62a17ae | 269 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
270 | peer->last_reset = PEER_DOWN_RID_CHANGE; | |
271 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
272 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
273 | } | |
274 | } | |
14c1a7bf | 275 | |
d62a17ae | 276 | /* EVPN uses router id in RD, update them */ |
94c2f693 | 277 | if (is_evpn_enabled()) |
d62a17ae | 278 | bgp_evpn_handle_router_id_update(bgp, FALSE); |
2d48ee25 | 279 | |
d62a17ae | 280 | return 0; |
718e3744 | 281 | } |
282 | ||
d62a17ae | 283 | void bgp_router_id_zebra_bump(vrf_id_t vrf_id, const struct prefix *router_id) |
0e6cb743 | 284 | { |
d62a17ae | 285 | struct listnode *node, *nnode; |
286 | struct bgp *bgp; | |
0e6cb743 | 287 | |
d62a17ae | 288 | if (vrf_id == VRF_DEFAULT) { |
289 | /* Router-id change for default VRF has to also update all | |
290 | * views. */ | |
291 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) { | |
292 | if (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) | |
293 | continue; | |
0e6cb743 | 294 | |
d62a17ae | 295 | bgp->router_id_zebra = router_id->u.prefix4; |
296 | if (!bgp->router_id_static.s_addr) | |
297 | bgp_router_id_set(bgp, &router_id->u.prefix4); | |
298 | } | |
299 | } else { | |
300 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
301 | if (bgp) { | |
302 | bgp->router_id_zebra = router_id->u.prefix4; | |
0e6cb743 | 303 | |
d62a17ae | 304 | if (!bgp->router_id_static.s_addr) |
305 | bgp_router_id_set(bgp, &router_id->u.prefix4); | |
306 | } | |
307 | } | |
0e6cb743 DL |
308 | } |
309 | ||
d62a17ae | 310 | int bgp_router_id_static_set(struct bgp *bgp, struct in_addr id) |
0e6cb743 | 311 | { |
d62a17ae | 312 | bgp->router_id_static = id; |
313 | bgp_router_id_set(bgp, id.s_addr ? &id : &bgp->router_id_zebra); | |
314 | return 0; | |
0e6cb743 DL |
315 | } |
316 | ||
718e3744 | 317 | /* BGP's cluster-id control. */ |
d62a17ae | 318 | int bgp_cluster_id_set(struct bgp *bgp, struct in_addr *cluster_id) |
718e3744 | 319 | { |
d62a17ae | 320 | struct peer *peer; |
321 | struct listnode *node, *nnode; | |
718e3744 | 322 | |
d62a17ae | 323 | if (bgp_config_check(bgp, BGP_CONFIG_CLUSTER_ID) |
324 | && IPV4_ADDR_SAME(&bgp->cluster_id, cluster_id)) | |
325 | return 0; | |
718e3744 | 326 | |
d62a17ae | 327 | IPV4_ADDR_COPY(&bgp->cluster_id, cluster_id); |
328 | bgp_config_set(bgp, BGP_CONFIG_CLUSTER_ID); | |
718e3744 | 329 | |
d62a17ae | 330 | /* Clear all IBGP peer. */ |
331 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
332 | if (peer->sort != BGP_PEER_IBGP) | |
333 | continue; | |
718e3744 | 334 | |
d62a17ae | 335 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
336 | peer->last_reset = PEER_DOWN_CLID_CHANGE; | |
337 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
338 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
339 | } | |
340 | } | |
341 | return 0; | |
718e3744 | 342 | } |
343 | ||
d62a17ae | 344 | int bgp_cluster_id_unset(struct bgp *bgp) |
718e3744 | 345 | { |
d62a17ae | 346 | struct peer *peer; |
347 | struct listnode *node, *nnode; | |
718e3744 | 348 | |
d62a17ae | 349 | if (!bgp_config_check(bgp, BGP_CONFIG_CLUSTER_ID)) |
350 | return 0; | |
718e3744 | 351 | |
d62a17ae | 352 | bgp->cluster_id.s_addr = 0; |
353 | bgp_config_unset(bgp, BGP_CONFIG_CLUSTER_ID); | |
718e3744 | 354 | |
d62a17ae | 355 | /* Clear all IBGP peer. */ |
356 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
357 | if (peer->sort != BGP_PEER_IBGP) | |
358 | continue; | |
718e3744 | 359 | |
d62a17ae | 360 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
361 | peer->last_reset = PEER_DOWN_CLID_CHANGE; | |
362 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
363 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
364 | } | |
365 | } | |
366 | return 0; | |
718e3744 | 367 | } |
6b0655a2 | 368 | |
65957886 SH |
369 | /* time_t value that is monotonicly increasing |
370 | * and uneffected by adjustments to system clock | |
371 | */ | |
d62a17ae | 372 | time_t bgp_clock(void) |
65957886 | 373 | { |
d62a17ae | 374 | struct timeval tv; |
65957886 | 375 | |
d62a17ae | 376 | monotime(&tv); |
377 | return tv.tv_sec; | |
65957886 SH |
378 | } |
379 | ||
718e3744 | 380 | /* BGP timer configuration. */ |
d7c0a89a | 381 | int bgp_timers_set(struct bgp *bgp, uint32_t keepalive, uint32_t holdtime) |
718e3744 | 382 | { |
d62a17ae | 383 | bgp->default_keepalive = |
384 | (keepalive < holdtime / 3 ? keepalive : holdtime / 3); | |
385 | bgp->default_holdtime = holdtime; | |
718e3744 | 386 | |
d62a17ae | 387 | return 0; |
718e3744 | 388 | } |
389 | ||
d62a17ae | 390 | int bgp_timers_unset(struct bgp *bgp) |
718e3744 | 391 | { |
d62a17ae | 392 | bgp->default_keepalive = BGP_DEFAULT_KEEPALIVE; |
393 | bgp->default_holdtime = BGP_DEFAULT_HOLDTIME; | |
718e3744 | 394 | |
d62a17ae | 395 | return 0; |
718e3744 | 396 | } |
6b0655a2 | 397 | |
718e3744 | 398 | /* BGP confederation configuration. */ |
d62a17ae | 399 | int bgp_confederation_id_set(struct bgp *bgp, as_t as) |
400 | { | |
401 | struct peer *peer; | |
402 | struct listnode *node, *nnode; | |
403 | int already_confed; | |
404 | ||
405 | if (as == 0) | |
406 | return BGP_ERR_INVALID_AS; | |
407 | ||
408 | /* Remember - were we doing confederation before? */ | |
409 | already_confed = bgp_config_check(bgp, BGP_CONFIG_CONFEDERATION); | |
410 | bgp->confed_id = as; | |
411 | bgp_config_set(bgp, BGP_CONFIG_CONFEDERATION); | |
412 | ||
413 | /* If we were doing confederation already, this is just an external | |
414 | AS change. Just Reset EBGP sessions, not CONFED sessions. If we | |
415 | were not doing confederation before, reset all EBGP sessions. */ | |
416 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
417 | /* We're looking for peers who's AS is not local or part of our | |
418 | confederation. */ | |
419 | if (already_confed) { | |
420 | if (peer_sort(peer) == BGP_PEER_EBGP) { | |
421 | peer->local_as = as; | |
422 | if (BGP_IS_VALID_STATE_FOR_NOTIF( | |
423 | peer->status)) { | |
424 | peer->last_reset = | |
425 | PEER_DOWN_CONFED_ID_CHANGE; | |
426 | bgp_notify_send( | |
427 | peer, BGP_NOTIFY_CEASE, | |
428 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
429 | } else | |
430 | bgp_session_reset_safe(peer, &nnode); | |
431 | } | |
432 | } else { | |
433 | /* Not doign confederation before, so reset every | |
434 | non-local | |
435 | session */ | |
436 | if (peer_sort(peer) != BGP_PEER_IBGP) { | |
437 | /* Reset the local_as to be our EBGP one */ | |
438 | if (peer_sort(peer) == BGP_PEER_EBGP) | |
439 | peer->local_as = as; | |
440 | if (BGP_IS_VALID_STATE_FOR_NOTIF( | |
441 | peer->status)) { | |
442 | peer->last_reset = | |
443 | PEER_DOWN_CONFED_ID_CHANGE; | |
444 | bgp_notify_send( | |
445 | peer, BGP_NOTIFY_CEASE, | |
446 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
447 | } else | |
448 | bgp_session_reset_safe(peer, &nnode); | |
449 | } | |
450 | } | |
718e3744 | 451 | } |
d62a17ae | 452 | return 0; |
718e3744 | 453 | } |
454 | ||
d62a17ae | 455 | int bgp_confederation_id_unset(struct bgp *bgp) |
718e3744 | 456 | { |
d62a17ae | 457 | struct peer *peer; |
458 | struct listnode *node, *nnode; | |
459 | ||
460 | bgp->confed_id = 0; | |
461 | bgp_config_unset(bgp, BGP_CONFIG_CONFEDERATION); | |
718e3744 | 462 | |
d62a17ae | 463 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { |
464 | /* We're looking for peers who's AS is not local */ | |
465 | if (peer_sort(peer) != BGP_PEER_IBGP) { | |
466 | peer->local_as = bgp->as; | |
467 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
468 | peer->last_reset = PEER_DOWN_CONFED_ID_CHANGE; | |
469 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
470 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
471 | } | |
718e3744 | 472 | |
d62a17ae | 473 | else |
474 | bgp_session_reset_safe(peer, &nnode); | |
475 | } | |
476 | } | |
477 | return 0; | |
718e3744 | 478 | } |
479 | ||
d62a17ae | 480 | /* Is an AS part of the confed or not? */ |
481 | int bgp_confederation_peers_check(struct bgp *bgp, as_t as) | |
718e3744 | 482 | { |
d62a17ae | 483 | int i; |
718e3744 | 484 | |
d62a17ae | 485 | if (!bgp) |
486 | return 0; | |
718e3744 | 487 | |
d62a17ae | 488 | for (i = 0; i < bgp->confed_peers_cnt; i++) |
489 | if (bgp->confed_peers[i] == as) | |
490 | return 1; | |
718e3744 | 491 | |
d62a17ae | 492 | return 0; |
493 | } | |
718e3744 | 494 | |
d62a17ae | 495 | /* Add an AS to the confederation set. */ |
496 | int bgp_confederation_peers_add(struct bgp *bgp, as_t as) | |
497 | { | |
498 | struct peer *peer; | |
499 | struct listnode *node, *nnode; | |
500 | ||
501 | if (!bgp) | |
502 | return BGP_ERR_INVALID_BGP; | |
503 | ||
504 | if (bgp->as == as) | |
505 | return BGP_ERR_INVALID_AS; | |
506 | ||
507 | if (bgp_confederation_peers_check(bgp, as)) | |
508 | return -1; | |
509 | ||
510 | if (bgp->confed_peers) | |
511 | bgp->confed_peers = | |
512 | XREALLOC(MTYPE_BGP_CONFED_LIST, bgp->confed_peers, | |
513 | (bgp->confed_peers_cnt + 1) * sizeof(as_t)); | |
514 | else | |
515 | bgp->confed_peers = | |
516 | XMALLOC(MTYPE_BGP_CONFED_LIST, | |
517 | (bgp->confed_peers_cnt + 1) * sizeof(as_t)); | |
518 | ||
519 | bgp->confed_peers[bgp->confed_peers_cnt] = as; | |
520 | bgp->confed_peers_cnt++; | |
521 | ||
522 | if (bgp_config_check(bgp, BGP_CONFIG_CONFEDERATION)) { | |
523 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
524 | if (peer->as == as) { | |
525 | peer->local_as = bgp->as; | |
526 | if (BGP_IS_VALID_STATE_FOR_NOTIF( | |
527 | peer->status)) { | |
528 | peer->last_reset = | |
529 | PEER_DOWN_CONFED_PEER_CHANGE; | |
530 | bgp_notify_send( | |
531 | peer, BGP_NOTIFY_CEASE, | |
532 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
533 | } else | |
534 | bgp_session_reset_safe(peer, &nnode); | |
535 | } | |
536 | } | |
537 | } | |
538 | return 0; | |
718e3744 | 539 | } |
540 | ||
541 | /* Delete an AS from the confederation set. */ | |
d62a17ae | 542 | int bgp_confederation_peers_remove(struct bgp *bgp, as_t as) |
543 | { | |
544 | int i; | |
545 | int j; | |
546 | struct peer *peer; | |
547 | struct listnode *node, *nnode; | |
548 | ||
549 | if (!bgp) | |
550 | return -1; | |
551 | ||
552 | if (!bgp_confederation_peers_check(bgp, as)) | |
553 | return -1; | |
554 | ||
555 | for (i = 0; i < bgp->confed_peers_cnt; i++) | |
556 | if (bgp->confed_peers[i] == as) | |
557 | for (j = i + 1; j < bgp->confed_peers_cnt; j++) | |
558 | bgp->confed_peers[j - 1] = bgp->confed_peers[j]; | |
559 | ||
560 | bgp->confed_peers_cnt--; | |
561 | ||
562 | if (bgp->confed_peers_cnt == 0) { | |
563 | if (bgp->confed_peers) | |
564 | XFREE(MTYPE_BGP_CONFED_LIST, bgp->confed_peers); | |
565 | bgp->confed_peers = NULL; | |
566 | } else | |
567 | bgp->confed_peers = | |
568 | XREALLOC(MTYPE_BGP_CONFED_LIST, bgp->confed_peers, | |
569 | bgp->confed_peers_cnt * sizeof(as_t)); | |
570 | ||
571 | /* Now reset any peer who's remote AS has just been removed from the | |
572 | CONFED */ | |
573 | if (bgp_config_check(bgp, BGP_CONFIG_CONFEDERATION)) { | |
574 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
575 | if (peer->as == as) { | |
576 | peer->local_as = bgp->confed_id; | |
577 | if (BGP_IS_VALID_STATE_FOR_NOTIF( | |
578 | peer->status)) { | |
579 | peer->last_reset = | |
580 | PEER_DOWN_CONFED_PEER_CHANGE; | |
581 | bgp_notify_send( | |
582 | peer, BGP_NOTIFY_CEASE, | |
583 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
584 | } else | |
585 | bgp_session_reset_safe(peer, &nnode); | |
586 | } | |
587 | } | |
718e3744 | 588 | } |
718e3744 | 589 | |
d62a17ae | 590 | return 0; |
718e3744 | 591 | } |
6b0655a2 | 592 | |
718e3744 | 593 | /* Local preference configuration. */ |
d7c0a89a | 594 | int bgp_default_local_preference_set(struct bgp *bgp, uint32_t local_pref) |
718e3744 | 595 | { |
d62a17ae | 596 | if (!bgp) |
597 | return -1; | |
718e3744 | 598 | |
d62a17ae | 599 | bgp->default_local_pref = local_pref; |
718e3744 | 600 | |
d62a17ae | 601 | return 0; |
718e3744 | 602 | } |
603 | ||
d62a17ae | 604 | int bgp_default_local_preference_unset(struct bgp *bgp) |
718e3744 | 605 | { |
d62a17ae | 606 | if (!bgp) |
607 | return -1; | |
718e3744 | 608 | |
d62a17ae | 609 | bgp->default_local_pref = BGP_DEFAULT_LOCAL_PREF; |
718e3744 | 610 | |
d62a17ae | 611 | return 0; |
718e3744 | 612 | } |
6b0655a2 | 613 | |
3f9c7369 | 614 | /* Local preference configuration. */ |
d7c0a89a | 615 | int bgp_default_subgroup_pkt_queue_max_set(struct bgp *bgp, uint32_t queue_size) |
3f9c7369 | 616 | { |
d62a17ae | 617 | if (!bgp) |
618 | return -1; | |
3f9c7369 | 619 | |
d62a17ae | 620 | bgp->default_subgroup_pkt_queue_max = queue_size; |
3f9c7369 | 621 | |
d62a17ae | 622 | return 0; |
3f9c7369 DS |
623 | } |
624 | ||
d62a17ae | 625 | int bgp_default_subgroup_pkt_queue_max_unset(struct bgp *bgp) |
3f9c7369 | 626 | { |
d62a17ae | 627 | if (!bgp) |
628 | return -1; | |
629 | bgp->default_subgroup_pkt_queue_max = | |
630 | BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX; | |
3f9c7369 | 631 | |
d62a17ae | 632 | return 0; |
3f9c7369 DS |
633 | } |
634 | ||
f14e6fdb | 635 | /* Listen limit configuration. */ |
d62a17ae | 636 | int bgp_listen_limit_set(struct bgp *bgp, int listen_limit) |
f14e6fdb | 637 | { |
d62a17ae | 638 | if (!bgp) |
639 | return -1; | |
f14e6fdb | 640 | |
d62a17ae | 641 | bgp->dynamic_neighbors_limit = listen_limit; |
f14e6fdb | 642 | |
d62a17ae | 643 | return 0; |
f14e6fdb DS |
644 | } |
645 | ||
d62a17ae | 646 | int bgp_listen_limit_unset(struct bgp *bgp) |
f14e6fdb | 647 | { |
d62a17ae | 648 | if (!bgp) |
649 | return -1; | |
f14e6fdb | 650 | |
d62a17ae | 651 | bgp->dynamic_neighbors_limit = BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT; |
f14e6fdb | 652 | |
d62a17ae | 653 | return 0; |
f14e6fdb DS |
654 | } |
655 | ||
5c525538 RW |
656 | int bgp_map_afi_safi_iana2int(iana_afi_t pkt_afi, iana_safi_t pkt_safi, |
657 | afi_t *afi, safi_t *safi) | |
9cabb64b | 658 | { |
d62a17ae | 659 | /* Map from IANA values to internal values, return error if |
660 | * values are unrecognized. | |
661 | */ | |
662 | *afi = afi_iana2int(pkt_afi); | |
663 | *safi = safi_iana2int(pkt_safi); | |
664 | if (*afi == AFI_MAX || *safi == SAFI_MAX) | |
665 | return -1; | |
9cabb64b | 666 | |
d62a17ae | 667 | return 0; |
9cabb64b | 668 | } |
669 | ||
d62a17ae | 670 | int bgp_map_afi_safi_int2iana(afi_t afi, safi_t safi, iana_afi_t *pkt_afi, |
5c525538 | 671 | iana_safi_t *pkt_safi) |
9cabb64b | 672 | { |
d62a17ae | 673 | /* Map from internal values to IANA values, return error if |
674 | * internal values are bad (unexpected). | |
675 | */ | |
676 | if (afi == AFI_MAX || safi == SAFI_MAX) | |
677 | return -1; | |
678 | *pkt_afi = afi_int2iana(afi); | |
679 | *pkt_safi = safi_int2iana(safi); | |
680 | return 0; | |
9cabb64b | 681 | } |
682 | ||
d62a17ae | 683 | struct peer_af *peer_af_create(struct peer *peer, afi_t afi, safi_t safi) |
3f9c7369 | 684 | { |
d62a17ae | 685 | struct peer_af *af; |
686 | int afid; | |
3f9c7369 | 687 | |
d62a17ae | 688 | if (!peer) |
689 | return NULL; | |
3f9c7369 | 690 | |
d62a17ae | 691 | afid = afindex(afi, safi); |
692 | if (afid >= BGP_AF_MAX) | |
693 | return NULL; | |
3f9c7369 | 694 | |
d62a17ae | 695 | assert(peer->peer_af_array[afid] == NULL); |
3f9c7369 | 696 | |
d62a17ae | 697 | /* Allocate new peer af */ |
698 | af = XCALLOC(MTYPE_BGP_PEER_AF, sizeof(struct peer_af)); | |
c8560b44 | 699 | |
d62a17ae | 700 | if (af == NULL) { |
701 | zlog_err("Could not create af structure for peer %s", | |
702 | peer->host); | |
703 | return NULL; | |
704 | } | |
c8560b44 | 705 | |
d62a17ae | 706 | peer->peer_af_array[afid] = af; |
707 | af->afi = afi; | |
708 | af->safi = safi; | |
709 | af->afid = afid; | |
710 | af->peer = peer; | |
3f9c7369 | 711 | |
d62a17ae | 712 | return af; |
3f9c7369 DS |
713 | } |
714 | ||
d62a17ae | 715 | struct peer_af *peer_af_find(struct peer *peer, afi_t afi, safi_t safi) |
3f9c7369 | 716 | { |
d62a17ae | 717 | int afid; |
3f9c7369 | 718 | |
d62a17ae | 719 | if (!peer) |
720 | return NULL; | |
3f9c7369 | 721 | |
d62a17ae | 722 | afid = afindex(afi, safi); |
723 | if (afid >= BGP_AF_MAX) | |
724 | return NULL; | |
3f9c7369 | 725 | |
d62a17ae | 726 | return peer->peer_af_array[afid]; |
3f9c7369 DS |
727 | } |
728 | ||
d62a17ae | 729 | int peer_af_delete(struct peer *peer, afi_t afi, safi_t safi) |
3f9c7369 | 730 | { |
d62a17ae | 731 | struct peer_af *af; |
732 | int afid; | |
3f9c7369 | 733 | |
d62a17ae | 734 | if (!peer) |
735 | return -1; | |
3f9c7369 | 736 | |
d62a17ae | 737 | afid = afindex(afi, safi); |
738 | if (afid >= BGP_AF_MAX) | |
739 | return -1; | |
3f9c7369 | 740 | |
d62a17ae | 741 | af = peer->peer_af_array[afid]; |
742 | if (!af) | |
743 | return -1; | |
3f9c7369 | 744 | |
d62a17ae | 745 | bgp_stop_announce_route_timer(af); |
3f9c7369 | 746 | |
d62a17ae | 747 | if (PAF_SUBGRP(af)) { |
748 | if (BGP_DEBUG(update_groups, UPDATE_GROUPS)) | |
749 | zlog_debug("u%" PRIu64 ":s%" PRIu64 " remove peer %s", | |
750 | af->subgroup->update_group->id, | |
751 | af->subgroup->id, peer->host); | |
752 | } | |
3f9c7369 | 753 | |
d62a17ae | 754 | update_subgroup_remove_peer(af->subgroup, af); |
3f9c7369 | 755 | |
d62a17ae | 756 | peer->peer_af_array[afid] = NULL; |
757 | XFREE(MTYPE_BGP_PEER_AF, af); | |
758 | return 0; | |
3f9c7369 DS |
759 | } |
760 | ||
eb821189 | 761 | /* Peer comparison function for sorting. */ |
d62a17ae | 762 | int peer_cmp(struct peer *p1, struct peer *p2) |
718e3744 | 763 | { |
d62a17ae | 764 | if (p1->group && !p2->group) |
765 | return -1; | |
0aaa34db | 766 | |
d62a17ae | 767 | if (!p1->group && p2->group) |
768 | return 1; | |
0aaa34db | 769 | |
d62a17ae | 770 | if (p1->group == p2->group) { |
771 | if (p1->conf_if && !p2->conf_if) | |
772 | return -1; | |
0aaa34db | 773 | |
d62a17ae | 774 | if (!p1->conf_if && p2->conf_if) |
775 | return 1; | |
0aaa34db | 776 | |
d62a17ae | 777 | if (p1->conf_if && p2->conf_if) |
778 | return if_cmp_name_func(p1->conf_if, p2->conf_if); | |
779 | } else | |
780 | return strcmp(p1->group->name, p2->group->name); | |
0aaa34db | 781 | |
d62a17ae | 782 | return sockunion_cmp(&p1->su, &p2->su); |
718e3744 | 783 | } |
784 | ||
d62a17ae | 785 | static unsigned int peer_hash_key_make(void *p) |
dd793e4a | 786 | { |
d62a17ae | 787 | struct peer *peer = p; |
788 | return sockunion_hash(&peer->su); | |
dd793e4a DW |
789 | } |
790 | ||
40520c36 | 791 | static int peer_hash_same(const void *p1, const void *p2) |
dd793e4a | 792 | { |
d62a17ae | 793 | const struct peer *peer1 = p1; |
794 | const struct peer *peer2 = p2; | |
795 | return (sockunion_same(&peer1->su, &peer2->su) | |
796 | && CHECK_FLAG(peer1->flags, PEER_FLAG_CONFIG_NODE) | |
797 | == CHECK_FLAG(peer2->flags, PEER_FLAG_CONFIG_NODE)); | |
dd793e4a DW |
798 | } |
799 | ||
d7c0a89a | 800 | int peer_af_flag_check(struct peer *peer, afi_t afi, safi_t safi, uint32_t flag) |
718e3744 | 801 | { |
d62a17ae | 802 | return CHECK_FLAG(peer->af_flags[afi][safi], flag); |
718e3744 | 803 | } |
804 | ||
88b8ed8d | 805 | /* Return true if flag is set for the peer but not the peer-group */ |
d62a17ae | 806 | static int peergroup_af_flag_check(struct peer *peer, afi_t afi, safi_t safi, |
d7c0a89a | 807 | uint32_t flag) |
88b8ed8d | 808 | { |
d62a17ae | 809 | struct peer *g_peer = NULL; |
88b8ed8d | 810 | |
d62a17ae | 811 | if (peer_af_flag_check(peer, afi, safi, flag)) { |
812 | if (peer_group_active(peer)) { | |
813 | g_peer = peer->group->conf; | |
88b8ed8d | 814 | |
d62a17ae | 815 | /* If this flag is not set for the peer's peer-group |
816 | * then return true */ | |
817 | if (!peer_af_flag_check(g_peer, afi, safi, flag)) { | |
818 | return 1; | |
819 | } | |
820 | } | |
88b8ed8d | 821 | |
d62a17ae | 822 | /* peer is not in a peer-group but the flag is set to return |
823 | true */ | |
824 | else { | |
825 | return 1; | |
826 | } | |
827 | } | |
88b8ed8d | 828 | |
d62a17ae | 829 | return 0; |
88b8ed8d DW |
830 | } |
831 | ||
718e3744 | 832 | /* Reset all address family specific configuration. */ |
d62a17ae | 833 | static void peer_af_flag_reset(struct peer *peer, afi_t afi, safi_t safi) |
718e3744 | 834 | { |
d62a17ae | 835 | int i; |
836 | struct bgp_filter *filter; | |
837 | char orf_name[BUFSIZ]; | |
718e3744 | 838 | |
d62a17ae | 839 | filter = &peer->filter[afi][safi]; |
718e3744 | 840 | |
d62a17ae | 841 | /* Clear neighbor filter and route-map */ |
842 | for (i = FILTER_IN; i < FILTER_MAX; i++) { | |
843 | if (filter->dlist[i].name) { | |
844 | XFREE(MTYPE_BGP_FILTER_NAME, filter->dlist[i].name); | |
845 | filter->dlist[i].name = NULL; | |
846 | } | |
847 | if (filter->plist[i].name) { | |
848 | XFREE(MTYPE_BGP_FILTER_NAME, filter->plist[i].name); | |
849 | filter->plist[i].name = NULL; | |
850 | } | |
851 | if (filter->aslist[i].name) { | |
852 | XFREE(MTYPE_BGP_FILTER_NAME, filter->aslist[i].name); | |
853 | filter->aslist[i].name = NULL; | |
854 | } | |
718e3744 | 855 | } |
d62a17ae | 856 | for (i = RMAP_IN; i < RMAP_MAX; i++) { |
857 | if (filter->map[i].name) { | |
858 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[i].name); | |
859 | filter->map[i].name = NULL; | |
860 | } | |
718e3744 | 861 | } |
718e3744 | 862 | |
d62a17ae | 863 | /* Clear unsuppress map. */ |
864 | if (filter->usmap.name) | |
865 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
866 | filter->usmap.name = NULL; | |
867 | filter->usmap.map = NULL; | |
718e3744 | 868 | |
d62a17ae | 869 | /* Clear neighbor's all address family flags. */ |
870 | peer->af_flags[afi][safi] = 0; | |
718e3744 | 871 | |
d62a17ae | 872 | /* Clear neighbor's all address family sflags. */ |
873 | peer->af_sflags[afi][safi] = 0; | |
718e3744 | 874 | |
d62a17ae | 875 | /* Clear neighbor's all address family capabilities. */ |
876 | peer->af_cap[afi][safi] = 0; | |
718e3744 | 877 | |
d62a17ae | 878 | /* Clear ORF info */ |
879 | peer->orf_plist[afi][safi] = NULL; | |
880 | sprintf(orf_name, "%s.%d.%d", peer->host, afi, safi); | |
881 | prefix_bgp_orf_remove_all(afi, orf_name); | |
882 | ||
883 | /* Set default neighbor send-community. */ | |
884 | if (!bgp_option_check(BGP_OPT_CONFIG_CISCO)) { | |
885 | SET_FLAG(peer->af_flags[afi][safi], PEER_FLAG_SEND_COMMUNITY); | |
886 | SET_FLAG(peer->af_flags[afi][safi], | |
887 | PEER_FLAG_SEND_EXT_COMMUNITY); | |
888 | SET_FLAG(peer->af_flags[afi][safi], | |
889 | PEER_FLAG_SEND_LARGE_COMMUNITY); | |
890 | } | |
718e3744 | 891 | |
d62a17ae | 892 | /* Clear neighbor default_originate_rmap */ |
893 | if (peer->default_rmap[afi][safi].name) | |
894 | XFREE(MTYPE_ROUTE_MAP_NAME, peer->default_rmap[afi][safi].name); | |
895 | peer->default_rmap[afi][safi].name = NULL; | |
896 | peer->default_rmap[afi][safi].map = NULL; | |
718e3744 | 897 | |
d62a17ae | 898 | /* Clear neighbor maximum-prefix */ |
899 | peer->pmax[afi][safi] = 0; | |
900 | peer->pmax_threshold[afi][safi] = MAXIMUM_PREFIX_THRESHOLD_DEFAULT; | |
718e3744 | 901 | } |
902 | ||
903 | /* peer global config reset */ | |
d62a17ae | 904 | static void peer_global_config_reset(struct peer *peer) |
718e3744 | 905 | { |
89898ced | 906 | int saved_flags = 0; |
8ffedcea | 907 | |
d62a17ae | 908 | peer->change_local_as = 0; |
909 | peer->ttl = (peer_sort(peer) == BGP_PEER_IBGP ? MAXTTL : 1); | |
910 | if (peer->update_source) { | |
911 | sockunion_free(peer->update_source); | |
912 | peer->update_source = NULL; | |
913 | } | |
914 | if (peer->update_if) { | |
915 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); | |
916 | peer->update_if = NULL; | |
917 | } | |
718e3744 | 918 | |
d62a17ae | 919 | if (peer_sort(peer) == BGP_PEER_IBGP) |
920 | peer->v_routeadv = BGP_DEFAULT_IBGP_ROUTEADV; | |
921 | else | |
922 | peer->v_routeadv = BGP_DEFAULT_EBGP_ROUTEADV; | |
718e3744 | 923 | |
89898ced QY |
924 | /* These are per-peer specific flags and so we must preserve them */ |
925 | saved_flags |= CHECK_FLAG(peer->flags, PEER_FLAG_IFPEER_V6ONLY); | |
926 | saved_flags |= CHECK_FLAG(peer->flags, PEER_FLAG_SHUTDOWN); | |
d62a17ae | 927 | peer->flags = 0; |
89898ced | 928 | SET_FLAG(peer->flags, saved_flags); |
8ffedcea | 929 | |
d62a17ae | 930 | peer->config = 0; |
931 | peer->holdtime = 0; | |
932 | peer->keepalive = 0; | |
933 | peer->connect = 0; | |
934 | peer->v_connect = BGP_DEFAULT_CONNECT_RETRY; | |
821a359a | 935 | |
d62a17ae | 936 | /* Reset some other configs back to defaults. */ |
937 | peer->v_start = BGP_INIT_START_TIMER; | |
938 | peer->password = NULL; | |
939 | peer->local_id = peer->bgp->router_id; | |
940 | peer->v_holdtime = peer->bgp->default_holdtime; | |
941 | peer->v_keepalive = peer->bgp->default_keepalive; | |
821a359a | 942 | |
d62a17ae | 943 | bfd_info_free(&(peer->bfd_info)); |
7f342629 | 944 | |
d62a17ae | 945 | /* Set back the CONFIG_NODE flag. */ |
946 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); | |
718e3744 | 947 | } |
948 | ||
6d85b15b | 949 | /* Check peer's AS number and determines if this peer is IBGP or EBGP */ |
82417ac2 | 950 | static inline bgp_peer_sort_t peer_calc_sort(struct peer *peer) |
718e3744 | 951 | { |
d62a17ae | 952 | struct bgp *bgp; |
718e3744 | 953 | |
d62a17ae | 954 | bgp = peer->bgp; |
718e3744 | 955 | |
d62a17ae | 956 | /* Peer-group */ |
957 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
958 | if (peer->as_type == AS_INTERNAL) | |
959 | return BGP_PEER_IBGP; | |
66b199b2 | 960 | |
d62a17ae | 961 | else if (peer->as_type == AS_EXTERNAL) |
962 | return BGP_PEER_EBGP; | |
66b199b2 | 963 | |
d62a17ae | 964 | else if (peer->as_type == AS_SPECIFIED && peer->as) |
965 | return (bgp->as == peer->as ? BGP_PEER_IBGP | |
966 | : BGP_PEER_EBGP); | |
66b199b2 | 967 | |
d62a17ae | 968 | else { |
969 | struct peer *peer1; | |
970 | peer1 = listnode_head(peer->group->peer); | |
971 | ||
972 | if (peer1) | |
973 | return peer1->sort; | |
974 | } | |
975 | return BGP_PEER_INTERNAL; | |
976 | } | |
977 | ||
978 | /* Normal peer */ | |
979 | if (bgp && CHECK_FLAG(bgp->config, BGP_CONFIG_CONFEDERATION)) { | |
980 | if (peer->local_as == 0) | |
981 | return BGP_PEER_INTERNAL; | |
982 | ||
983 | if (peer->local_as == peer->as) { | |
984 | if (bgp->as == bgp->confed_id) { | |
985 | if (peer->local_as == bgp->as) | |
986 | return BGP_PEER_IBGP; | |
987 | else | |
988 | return BGP_PEER_EBGP; | |
989 | } else { | |
990 | if (peer->local_as == bgp->confed_id) | |
991 | return BGP_PEER_EBGP; | |
992 | else | |
993 | return BGP_PEER_IBGP; | |
994 | } | |
995 | } | |
996 | ||
997 | if (bgp_confederation_peers_check(bgp, peer->as)) | |
998 | return BGP_PEER_CONFED; | |
999 | ||
1000 | return BGP_PEER_EBGP; | |
1001 | } else { | |
1002 | if (peer->as_type != AS_SPECIFIED) | |
1003 | return (peer->as_type == AS_INTERNAL ? BGP_PEER_IBGP | |
1004 | : BGP_PEER_EBGP); | |
1005 | ||
1006 | return (peer->local_as == 0 | |
1007 | ? BGP_PEER_INTERNAL | |
1008 | : peer->local_as == peer->as ? BGP_PEER_IBGP | |
1009 | : BGP_PEER_EBGP); | |
1010 | } | |
718e3744 | 1011 | } |
1012 | ||
6d85b15b | 1013 | /* Calculate and cache the peer "sort" */ |
d62a17ae | 1014 | bgp_peer_sort_t peer_sort(struct peer *peer) |
1015 | { | |
1016 | peer->sort = peer_calc_sort(peer); | |
1017 | return peer->sort; | |
1018 | } | |
1019 | ||
1020 | static void peer_free(struct peer *peer) | |
1021 | { | |
1022 | assert(peer->status == Deleted); | |
1023 | ||
1024 | QOBJ_UNREG(peer); | |
1025 | ||
1026 | /* this /ought/ to have been done already through bgp_stop earlier, | |
1027 | * but just to be sure.. | |
1028 | */ | |
1029 | bgp_timer_set(peer); | |
424ab01d QY |
1030 | bgp_reads_off(peer); |
1031 | bgp_writes_off(peer); | |
1032 | assert(!peer->t_write); | |
1033 | assert(!peer->t_read); | |
d62a17ae | 1034 | BGP_EVENT_FLUSH(peer); |
1035 | ||
424ab01d QY |
1036 | pthread_mutex_destroy(&peer->io_mtx); |
1037 | ||
d62a17ae | 1038 | /* Free connected nexthop, if present */ |
1039 | if (CHECK_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE) | |
1040 | && !peer_dynamic_neighbor(peer)) | |
1041 | bgp_delete_connected_nexthop(family2afi(peer->su.sa.sa_family), | |
1042 | peer); | |
1043 | ||
1044 | XFREE(MTYPE_PEER_TX_SHUTDOWN_MSG, peer->tx_shutdown_message); | |
1045 | ||
1046 | if (peer->desc) { | |
1047 | XFREE(MTYPE_PEER_DESC, peer->desc); | |
1048 | peer->desc = NULL; | |
1049 | } | |
1050 | ||
1051 | /* Free allocated host character. */ | |
1052 | if (peer->host) { | |
1053 | XFREE(MTYPE_BGP_PEER_HOST, peer->host); | |
1054 | peer->host = NULL; | |
1055 | } | |
1056 | ||
1057 | if (peer->domainname) { | |
1058 | XFREE(MTYPE_BGP_PEER_HOST, peer->domainname); | |
1059 | peer->domainname = NULL; | |
1060 | } | |
1061 | ||
1062 | if (peer->ifname) { | |
1063 | XFREE(MTYPE_BGP_PEER_IFNAME, peer->ifname); | |
1064 | peer->ifname = NULL; | |
1065 | } | |
1066 | ||
1067 | /* Update source configuration. */ | |
1068 | if (peer->update_source) { | |
1069 | sockunion_free(peer->update_source); | |
1070 | peer->update_source = NULL; | |
1071 | } | |
1072 | ||
1073 | if (peer->update_if) { | |
1074 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); | |
1075 | peer->update_if = NULL; | |
1076 | } | |
1077 | ||
1078 | if (peer->notify.data) | |
1079 | XFREE(MTYPE_TMP, peer->notify.data); | |
1080 | memset(&peer->notify, 0, sizeof(struct bgp_notify)); | |
1081 | ||
e208c8f9 DS |
1082 | if (peer->clear_node_queue) |
1083 | work_queue_free_and_null(&peer->clear_node_queue); | |
d62a17ae | 1084 | |
1085 | bgp_sync_delete(peer); | |
1086 | ||
1087 | if (peer->conf_if) { | |
1088 | XFREE(MTYPE_PEER_CONF_IF, peer->conf_if); | |
1089 | peer->conf_if = NULL; | |
1090 | } | |
1091 | ||
1092 | bfd_info_free(&(peer->bfd_info)); | |
1093 | ||
1094 | bgp_unlock(peer->bgp); | |
1095 | ||
1096 | memset(peer, 0, sizeof(struct peer)); | |
1097 | ||
1098 | XFREE(MTYPE_BGP_PEER, peer); | |
1099 | } | |
1100 | ||
200df115 | 1101 | /* increase reference count on a struct peer */ |
d62a17ae | 1102 | struct peer *peer_lock_with_caller(const char *name, struct peer *peer) |
200df115 | 1103 | { |
d62a17ae | 1104 | assert(peer && (peer->lock >= 0)); |
28066f4b DS |
1105 | |
1106 | #if 0 | |
1107 | zlog_debug("%s peer_lock %p %d", name, peer, peer->lock); | |
1108 | #endif | |
d62a17ae | 1109 | |
1110 | peer->lock++; | |
1111 | ||
1112 | return peer; | |
200df115 | 1113 | } |
1114 | ||
1115 | /* decrease reference count on a struct peer | |
1116 | * struct peer is freed and NULL returned if last reference | |
1117 | */ | |
d62a17ae | 1118 | struct peer *peer_unlock_with_caller(const char *name, struct peer *peer) |
200df115 | 1119 | { |
d62a17ae | 1120 | assert(peer && (peer->lock > 0)); |
28066f4b DS |
1121 | |
1122 | #if 0 | |
1123 | zlog_debug("%s peer_unlock %p %d", name, peer, peer->lock); | |
1124 | #endif | |
200df115 | 1125 | |
d62a17ae | 1126 | peer->lock--; |
1127 | ||
1128 | if (peer->lock == 0) { | |
1129 | peer_free(peer); | |
1130 | return NULL; | |
1131 | } | |
1132 | ||
1133 | return peer; | |
200df115 | 1134 | } |
1ff9a340 | 1135 | |
200df115 | 1136 | /* Allocate new peer object, implicitely locked. */ |
d62a17ae | 1137 | struct peer *peer_new(struct bgp *bgp) |
1138 | { | |
1139 | afi_t afi; | |
1140 | safi_t safi; | |
1141 | struct peer *peer; | |
1142 | struct servent *sp; | |
1143 | ||
1144 | /* bgp argument is absolutely required */ | |
1145 | assert(bgp); | |
1146 | if (!bgp) | |
1147 | return NULL; | |
1148 | ||
1149 | /* Allocate new peer. */ | |
1150 | peer = XCALLOC(MTYPE_BGP_PEER, sizeof(struct peer)); | |
1151 | ||
1152 | /* Set default value. */ | |
1153 | peer->fd = -1; | |
1154 | peer->v_start = BGP_INIT_START_TIMER; | |
1155 | peer->v_connect = BGP_DEFAULT_CONNECT_RETRY; | |
1156 | peer->status = Idle; | |
1157 | peer->ostatus = Idle; | |
1158 | peer->cur_event = peer->last_event = peer->last_major_event = 0; | |
92375c91 | 1159 | peer->bgp = bgp_lock(bgp); |
d62a17ae | 1160 | peer = peer_lock(peer); /* initial reference */ |
d62a17ae | 1161 | peer->password = NULL; |
1162 | ||
1163 | /* Set default flags. */ | |
05c7a1cc QY |
1164 | FOREACH_AFI_SAFI (afi, safi) { |
1165 | if (!bgp_option_check(BGP_OPT_CONFIG_CISCO)) { | |
1166 | SET_FLAG(peer->af_flags[afi][safi], | |
1167 | PEER_FLAG_SEND_COMMUNITY); | |
1168 | SET_FLAG(peer->af_flags[afi][safi], | |
1169 | PEER_FLAG_SEND_EXT_COMMUNITY); | |
1170 | SET_FLAG(peer->af_flags[afi][safi], | |
1171 | PEER_FLAG_SEND_LARGE_COMMUNITY); | |
d62a17ae | 1172 | } |
05c7a1cc QY |
1173 | peer->orf_plist[afi][safi] = NULL; |
1174 | } | |
d62a17ae | 1175 | SET_FLAG(peer->sflags, PEER_STATUS_CAPABILITY_OPEN); |
718e3744 | 1176 | |
d62a17ae | 1177 | /* Create buffers. */ |
424ab01d | 1178 | peer->ibuf = stream_fifo_new(); |
d62a17ae | 1179 | peer->obuf = stream_fifo_new(); |
424ab01d | 1180 | pthread_mutex_init(&peer->io_mtx, NULL); |
0a91ff55 | 1181 | |
424ab01d | 1182 | /* We use a larger buffer for peer->obuf_work in the event that: |
d62a17ae | 1183 | * - We RX a BGP_UPDATE where the attributes alone are just |
1184 | * under BGP_MAX_PACKET_SIZE | |
1185 | * - The user configures an outbound route-map that does many as-path | |
09f6d019 QY |
1186 | * prepends or adds many communities. At most they can have |
1187 | * CMD_ARGC_MAX args in a route-map so there is a finite limit on how | |
1188 | * large they can make the attributes. | |
d62a17ae | 1189 | * |
1190 | * Having a buffer with BGP_MAX_PACKET_SIZE_OVERFLOW allows us to avoid | |
09f6d019 QY |
1191 | * bounds checking for every single attribute as we construct an |
1192 | * UPDATE. | |
d62a17ae | 1193 | */ |
424ab01d | 1194 | peer->obuf_work = |
d62a17ae | 1195 | stream_new(BGP_MAX_PACKET_SIZE + BGP_MAX_PACKET_SIZE_OVERFLOW); |
74ffbfe6 QY |
1196 | peer->ibuf_work = |
1197 | ringbuf_new(BGP_MAX_PACKET_SIZE * BGP_READ_PACKET_MAX); | |
1198 | ||
d62a17ae | 1199 | peer->scratch = stream_new(BGP_MAX_PACKET_SIZE); |
718e3744 | 1200 | |
d62a17ae | 1201 | bgp_sync_init(peer); |
718e3744 | 1202 | |
d62a17ae | 1203 | /* Get service port number. */ |
1204 | sp = getservbyname("bgp", "tcp"); | |
1205 | peer->port = (sp == NULL) ? BGP_PORT_DEFAULT : ntohs(sp->s_port); | |
718e3744 | 1206 | |
d62a17ae | 1207 | QOBJ_REG(peer, peer); |
1208 | return peer; | |
718e3744 | 1209 | } |
1210 | ||
1ff9a340 DS |
1211 | /* |
1212 | * This function is invoked when a duplicate peer structure associated with | |
1213 | * a neighbor is being deleted. If this about-to-be-deleted structure is | |
1214 | * the one with all the config, then we have to copy over the info. | |
1215 | */ | |
d62a17ae | 1216 | void peer_xfer_config(struct peer *peer_dst, struct peer *peer_src) |
1217 | { | |
1218 | struct peer_af *paf; | |
1219 | afi_t afi; | |
1220 | safi_t safi; | |
1221 | int afidx; | |
1222 | ||
1223 | assert(peer_src); | |
1224 | assert(peer_dst); | |
1225 | ||
1226 | /* The following function is used by both peer group config copy to | |
1227 | * individual peer and when we transfer config | |
1228 | */ | |
1229 | if (peer_src->change_local_as) | |
1230 | peer_dst->change_local_as = peer_src->change_local_as; | |
1231 | ||
1232 | /* peer flags apply */ | |
1233 | peer_dst->flags = peer_src->flags; | |
1234 | peer_dst->cap = peer_src->cap; | |
1235 | peer_dst->config = peer_src->config; | |
1236 | ||
1237 | peer_dst->local_as = peer_src->local_as; | |
d62a17ae | 1238 | peer_dst->port = peer_src->port; |
82417ac2 | 1239 | (void)peer_sort(peer_dst); |
d62a17ae | 1240 | peer_dst->rmap_type = peer_src->rmap_type; |
1241 | ||
1242 | /* Timers */ | |
1243 | peer_dst->holdtime = peer_src->holdtime; | |
1244 | peer_dst->keepalive = peer_src->keepalive; | |
1245 | peer_dst->connect = peer_src->connect; | |
1246 | peer_dst->v_holdtime = peer_src->v_holdtime; | |
1247 | peer_dst->v_keepalive = peer_src->v_keepalive; | |
1248 | peer_dst->routeadv = peer_src->routeadv; | |
1249 | peer_dst->v_routeadv = peer_src->v_routeadv; | |
1250 | ||
1251 | /* password apply */ | |
1252 | if (peer_src->password && !peer_dst->password) | |
1253 | peer_dst->password = | |
1254 | XSTRDUP(MTYPE_PEER_PASSWORD, peer_src->password); | |
1255 | ||
05c7a1cc QY |
1256 | FOREACH_AFI_SAFI (afi, safi) { |
1257 | peer_dst->afc[afi][safi] = peer_src->afc[afi][safi]; | |
1258 | peer_dst->af_flags[afi][safi] = peer_src->af_flags[afi][safi]; | |
1259 | peer_dst->allowas_in[afi][safi] = | |
1260 | peer_src->allowas_in[afi][safi]; | |
1261 | peer_dst->weight[afi][safi] = peer_src->weight[afi][safi]; | |
1262 | } | |
d62a17ae | 1263 | |
1264 | for (afidx = BGP_AF_START; afidx < BGP_AF_MAX; afidx++) { | |
1265 | paf = peer_src->peer_af_array[afidx]; | |
1266 | if (paf != NULL) | |
1267 | peer_af_create(peer_dst, paf->afi, paf->safi); | |
1268 | } | |
1269 | ||
1270 | /* update-source apply */ | |
1271 | if (peer_src->update_source) { | |
1272 | if (peer_dst->update_source) | |
1273 | sockunion_free(peer_dst->update_source); | |
1274 | if (peer_dst->update_if) { | |
1275 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer_dst->update_if); | |
1276 | peer_dst->update_if = NULL; | |
1277 | } | |
1278 | peer_dst->update_source = | |
1279 | sockunion_dup(peer_src->update_source); | |
1280 | } else if (peer_src->update_if) { | |
1281 | if (peer_dst->update_if) | |
1282 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer_dst->update_if); | |
1283 | if (peer_dst->update_source) { | |
1284 | sockunion_free(peer_dst->update_source); | |
1285 | peer_dst->update_source = NULL; | |
1286 | } | |
1287 | peer_dst->update_if = | |
1288 | XSTRDUP(MTYPE_PEER_UPDATE_SOURCE, peer_src->update_if); | |
1289 | } | |
1290 | ||
1291 | if (peer_src->ifname) { | |
1292 | if (peer_dst->ifname) | |
1293 | XFREE(MTYPE_BGP_PEER_IFNAME, peer_dst->ifname); | |
1294 | ||
1295 | peer_dst->ifname = | |
1296 | XSTRDUP(MTYPE_BGP_PEER_IFNAME, peer_src->ifname); | |
1297 | } | |
1298 | } | |
1299 | ||
1300 | static int bgp_peer_conf_if_to_su_update_v4(struct peer *peer, | |
1301 | struct interface *ifp) | |
1302 | { | |
1303 | struct connected *ifc; | |
1304 | struct prefix p; | |
d7c0a89a | 1305 | uint32_t addr; |
d62a17ae | 1306 | struct listnode *node; |
1307 | ||
1308 | /* If our IPv4 address on the interface is /30 or /31, we can derive the | |
1309 | * IPv4 address of the other end. | |
1310 | */ | |
1311 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, ifc)) { | |
1312 | if (ifc->address && (ifc->address->family == AF_INET)) { | |
1313 | PREFIX_COPY_IPV4(&p, CONNECTED_PREFIX(ifc)); | |
1314 | if (p.prefixlen == 30) { | |
1315 | peer->su.sa.sa_family = AF_INET; | |
1316 | addr = ntohl(p.u.prefix4.s_addr); | |
1317 | if (addr % 4 == 1) | |
1318 | peer->su.sin.sin_addr.s_addr = | |
1319 | htonl(addr + 1); | |
1320 | else if (addr % 4 == 2) | |
1321 | peer->su.sin.sin_addr.s_addr = | |
1322 | htonl(addr - 1); | |
8ffedcea | 1323 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
d62a17ae | 1324 | peer->su.sin.sin_len = |
1325 | sizeof(struct sockaddr_in); | |
8ffedcea | 1326 | #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */ |
d62a17ae | 1327 | return 1; |
1328 | } else if (p.prefixlen == 31) { | |
1329 | peer->su.sa.sa_family = AF_INET; | |
1330 | addr = ntohl(p.u.prefix4.s_addr); | |
1331 | if (addr % 2 == 0) | |
1332 | peer->su.sin.sin_addr.s_addr = | |
1333 | htonl(addr + 1); | |
1334 | else | |
1335 | peer->su.sin.sin_addr.s_addr = | |
1336 | htonl(addr - 1); | |
8ffedcea | 1337 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
d62a17ae | 1338 | peer->su.sin.sin_len = |
1339 | sizeof(struct sockaddr_in); | |
8ffedcea | 1340 | #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */ |
d62a17ae | 1341 | return 1; |
1342 | } else if (bgp_debug_neighbor_events(peer)) | |
1343 | zlog_debug( | |
1344 | "%s: IPv4 interface address is not /30 or /31, v4 session not started", | |
1345 | peer->conf_if); | |
1346 | } | |
1347 | } | |
1348 | ||
1349 | return 0; | |
1350 | } | |
1351 | ||
1352 | static int bgp_peer_conf_if_to_su_update_v6(struct peer *peer, | |
1353 | struct interface *ifp) | |
1354 | { | |
1355 | struct nbr_connected *ifc_nbr; | |
1356 | ||
1357 | /* Have we learnt the peer's IPv6 link-local address? */ | |
1358 | if (ifp->nbr_connected | |
1359 | && (ifc_nbr = listnode_head(ifp->nbr_connected))) { | |
1360 | peer->su.sa.sa_family = AF_INET6; | |
1361 | memcpy(&peer->su.sin6.sin6_addr, &ifc_nbr->address->u.prefix, | |
1362 | sizeof(struct in6_addr)); | |
a80beece | 1363 | #ifdef SIN6_LEN |
d62a17ae | 1364 | peer->su.sin6.sin6_len = sizeof(struct sockaddr_in6); |
a80beece | 1365 | #endif |
d62a17ae | 1366 | peer->su.sin6.sin6_scope_id = ifp->ifindex; |
1367 | return 1; | |
1368 | } | |
8ffedcea | 1369 | |
d62a17ae | 1370 | return 0; |
89ca90fa | 1371 | } |
1372 | ||
1373 | /* | |
1374 | * Set or reset the peer address socketunion structure based on the | |
1375 | * learnt/derived peer address. If the address has changed, update the | |
1376 | * password on the listen socket, if needed. | |
1377 | */ | |
d62a17ae | 1378 | void bgp_peer_conf_if_to_su_update(struct peer *peer) |
1379 | { | |
1380 | struct interface *ifp; | |
1381 | int prev_family; | |
1382 | int peer_addr_updated = 0; | |
1383 | ||
1384 | if (!peer->conf_if) | |
1385 | return; | |
1386 | ||
1387 | prev_family = peer->su.sa.sa_family; | |
1388 | if ((ifp = if_lookup_by_name(peer->conf_if, peer->bgp->vrf_id))) { | |
1389 | peer->ifp = ifp; | |
1390 | /* If BGP unnumbered is not "v6only", we first see if we can | |
1391 | * derive the | |
1392 | * peer's IPv4 address. | |
1393 | */ | |
1394 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_IFPEER_V6ONLY)) | |
1395 | peer_addr_updated = | |
1396 | bgp_peer_conf_if_to_su_update_v4(peer, ifp); | |
1397 | ||
1398 | /* If "v6only" or we can't derive peer's IPv4 address, see if | |
1399 | * we've | |
1400 | * learnt the peer's IPv6 link-local address. This is from the | |
1401 | * source | |
1402 | * IPv6 address in router advertisement. | |
1403 | */ | |
1404 | if (!peer_addr_updated) | |
1405 | peer_addr_updated = | |
1406 | bgp_peer_conf_if_to_su_update_v6(peer, ifp); | |
1407 | } | |
1408 | /* If we could derive the peer address, we may need to install the | |
1409 | * password | |
1410 | * configured for the peer, if any, on the listen socket. Otherwise, | |
1411 | * mark | |
1412 | * that peer's address is not available and uninstall the password, if | |
1413 | * needed. | |
1414 | */ | |
1415 | if (peer_addr_updated) { | |
1416 | if (peer->password && prev_family == AF_UNSPEC) | |
1417 | bgp_md5_set(peer); | |
1418 | } else { | |
1419 | if (peer->password && prev_family != AF_UNSPEC) | |
1420 | bgp_md5_unset(peer); | |
1421 | peer->su.sa.sa_family = AF_UNSPEC; | |
1422 | memset(&peer->su.sin6.sin6_addr, 0, sizeof(struct in6_addr)); | |
1423 | } | |
1424 | ||
1425 | /* Since our su changed we need to del/add peer to the peerhash */ | |
1426 | hash_release(peer->bgp->peerhash, peer); | |
1427 | hash_get(peer->bgp->peerhash, peer, hash_alloc_intern); | |
a80beece DS |
1428 | } |
1429 | ||
318cac96 DW |
1430 | static void bgp_recalculate_afi_safi_bestpaths(struct bgp *bgp, afi_t afi, |
1431 | safi_t safi) | |
1432 | { | |
1433 | struct bgp_node *rn, *nrn; | |
1434 | ||
1435 | for (rn = bgp_table_top(bgp->rib[afi][safi]); rn; | |
1436 | rn = bgp_route_next(rn)) { | |
1437 | if (rn->info != NULL) { | |
1438 | /* Special handling for 2-level routing | |
1439 | * tables. */ | |
a4d82a8a | 1440 | if (safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP |
318cac96 | 1441 | || safi == SAFI_EVPN) { |
a4d82a8a PZ |
1442 | for (nrn = bgp_table_top( |
1443 | (struct bgp_table *)(rn->info)); | |
1444 | nrn; nrn = bgp_route_next(nrn)) | |
1445 | bgp_process(bgp, nrn, afi, safi); | |
318cac96 DW |
1446 | } else |
1447 | bgp_process(bgp, rn, afi, safi); | |
1448 | } | |
1449 | } | |
1450 | } | |
1451 | ||
06370dac DW |
1452 | /* Force a bestpath recalculation for all prefixes. This is used |
1453 | * when 'bgp bestpath' commands are entered. | |
1454 | */ | |
d62a17ae | 1455 | void bgp_recalculate_all_bestpaths(struct bgp *bgp) |
1456 | { | |
1457 | afi_t afi; | |
1458 | safi_t safi; | |
d62a17ae | 1459 | |
05c7a1cc QY |
1460 | FOREACH_AFI_SAFI (afi, safi) { |
1461 | bgp_recalculate_afi_safi_bestpaths(bgp, afi, safi); | |
d62a17ae | 1462 | } |
06370dac DW |
1463 | } |
1464 | ||
718e3744 | 1465 | /* Create new BGP peer. */ |
d62a17ae | 1466 | struct peer *peer_create(union sockunion *su, const char *conf_if, |
1467 | struct bgp *bgp, as_t local_as, as_t remote_as, | |
1468 | int as_type, afi_t afi, safi_t safi, | |
1469 | struct peer_group *group) | |
1470 | { | |
1471 | int active; | |
1472 | struct peer *peer; | |
1473 | char buf[SU_ADDRSTRLEN]; | |
1474 | ||
1475 | peer = peer_new(bgp); | |
1476 | if (conf_if) { | |
1477 | peer->conf_if = XSTRDUP(MTYPE_PEER_CONF_IF, conf_if); | |
1478 | bgp_peer_conf_if_to_su_update(peer); | |
1479 | if (peer->host) | |
1480 | XFREE(MTYPE_BGP_PEER_HOST, peer->host); | |
1481 | peer->host = XSTRDUP(MTYPE_BGP_PEER_HOST, conf_if); | |
1482 | } else if (su) { | |
1483 | peer->su = *su; | |
1484 | sockunion2str(su, buf, SU_ADDRSTRLEN); | |
1485 | if (peer->host) | |
1486 | XFREE(MTYPE_BGP_PEER_HOST, peer->host); | |
1487 | peer->host = XSTRDUP(MTYPE_BGP_PEER_HOST, buf); | |
1488 | } | |
1489 | peer->local_as = local_as; | |
1490 | peer->as = remote_as; | |
1491 | peer->as_type = as_type; | |
1492 | peer->local_id = bgp->router_id; | |
1493 | peer->v_holdtime = bgp->default_holdtime; | |
1494 | peer->v_keepalive = bgp->default_keepalive; | |
1495 | if (peer_sort(peer) == BGP_PEER_IBGP) | |
1496 | peer->v_routeadv = BGP_DEFAULT_IBGP_ROUTEADV; | |
1497 | else | |
1498 | peer->v_routeadv = BGP_DEFAULT_EBGP_ROUTEADV; | |
1499 | ||
1500 | peer = peer_lock(peer); /* bgp peer list reference */ | |
1501 | peer->group = group; | |
1502 | listnode_add_sort(bgp->peer, peer); | |
1503 | hash_get(bgp->peerhash, peer, hash_alloc_intern); | |
1504 | ||
4961a5a2 | 1505 | /* Adjust update-group coalesce timer heuristics for # peers. */ |
37a333fe | 1506 | if (bgp->heuristic_coalesce) { |
14b8641a QY |
1507 | long ct = BGP_DEFAULT_SUBGROUP_COALESCE_TIME |
1508 | + (bgp->peer->count | |
1509 | * BGP_PEER_ADJUST_SUBGROUP_COALESCE_TIME); | |
1510 | bgp->coalesce_time = MIN(BGP_MAX_SUBGROUP_COALESCE_TIME, ct); | |
1511 | } | |
4961a5a2 | 1512 | |
d62a17ae | 1513 | active = peer_active(peer); |
1514 | ||
1515 | /* Last read and reset time set */ | |
1516 | peer->readtime = peer->resettime = bgp_clock(); | |
1517 | ||
1518 | /* Default TTL set. */ | |
1519 | peer->ttl = (peer->sort == BGP_PEER_IBGP) ? MAXTTL : 1; | |
1520 | ||
1521 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); | |
1522 | ||
1523 | if (afi && safi) { | |
1524 | peer->afc[afi][safi] = 1; | |
1525 | peer_af_create(peer, afi, safi); | |
1526 | } | |
1527 | ||
f26845f9 QY |
1528 | /* auto shutdown if configured */ |
1529 | if (bgp->autoshutdown) | |
1530 | peer_flag_set(peer, PEER_FLAG_SHUTDOWN); | |
d62a17ae | 1531 | /* Set up peer's events and timers. */ |
f26845f9 | 1532 | else if (!active && peer_active(peer)) |
d62a17ae | 1533 | bgp_timer_set(peer); |
1534 | ||
1535 | return peer; | |
718e3744 | 1536 | } |
1537 | ||
dd793e4a | 1538 | /* Make accept BGP peer. This function is only called from the test code */ |
d62a17ae | 1539 | struct peer *peer_create_accept(struct bgp *bgp) |
eb821189 | 1540 | { |
d62a17ae | 1541 | struct peer *peer; |
eb821189 | 1542 | |
d62a17ae | 1543 | peer = peer_new(bgp); |
1ff9a340 | 1544 | |
d62a17ae | 1545 | peer = peer_lock(peer); /* bgp peer list reference */ |
1546 | listnode_add_sort(bgp->peer, peer); | |
eb821189 | 1547 | |
d62a17ae | 1548 | return peer; |
eb821189 | 1549 | } |
1550 | ||
318cac96 DW |
1551 | /* |
1552 | * Return true if we have a peer configured to use this afi/safi | |
1553 | */ | |
1554 | int bgp_afi_safi_peer_exists(struct bgp *bgp, afi_t afi, safi_t safi) | |
1555 | { | |
1556 | struct listnode *node; | |
1557 | struct peer *peer; | |
1558 | ||
1559 | for (ALL_LIST_ELEMENTS_RO(bgp->peer, node, peer)) { | |
1560 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE)) | |
1561 | continue; | |
1562 | ||
1563 | if (peer->afc[afi][safi]) | |
1564 | return 1; | |
1565 | } | |
1566 | ||
1567 | return 0; | |
1568 | } | |
1569 | ||
718e3744 | 1570 | /* Change peer's AS number. */ |
d62a17ae | 1571 | void peer_as_change(struct peer *peer, as_t as, int as_specified) |
1572 | { | |
1573 | bgp_peer_sort_t type; | |
1574 | struct peer *conf; | |
1575 | ||
1576 | /* Stop peer. */ | |
1577 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
1578 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
1579 | peer->last_reset = PEER_DOWN_REMOTE_AS_CHANGE; | |
1580 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
1581 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
1582 | } else | |
1583 | bgp_session_reset(peer); | |
1584 | } | |
1585 | type = peer_sort(peer); | |
1586 | peer->as = as; | |
1587 | peer->as_type = as_specified; | |
1588 | ||
1589 | if (bgp_config_check(peer->bgp, BGP_CONFIG_CONFEDERATION) | |
1590 | && !bgp_confederation_peers_check(peer->bgp, as) | |
1591 | && peer->bgp->as != as) | |
1592 | peer->local_as = peer->bgp->confed_id; | |
1593 | else | |
1594 | peer->local_as = peer->bgp->as; | |
1595 | ||
1596 | /* Advertisement-interval reset */ | |
1597 | conf = NULL; | |
1598 | if (peer->group) | |
1599 | conf = peer->group->conf; | |
1600 | ||
1601 | if (conf && CHECK_FLAG(conf->config, PEER_CONFIG_ROUTEADV)) { | |
1602 | peer->v_routeadv = conf->routeadv; | |
1603 | } | |
1604 | /* Only go back to the default advertisement-interval if the user had | |
1605 | * not | |
1606 | * already configured it */ | |
1607 | else if (!CHECK_FLAG(peer->config, PEER_CONFIG_ROUTEADV)) { | |
1608 | if (peer_sort(peer) == BGP_PEER_IBGP) | |
1609 | peer->v_routeadv = BGP_DEFAULT_IBGP_ROUTEADV; | |
1610 | else | |
1611 | peer->v_routeadv = BGP_DEFAULT_EBGP_ROUTEADV; | |
1612 | } | |
1613 | /* TTL reset */ | |
1614 | if (peer_sort(peer) == BGP_PEER_IBGP) | |
1615 | peer->ttl = MAXTTL; | |
1616 | else if (type == BGP_PEER_IBGP) | |
1617 | peer->ttl = 1; | |
1618 | ||
1619 | /* reflector-client reset */ | |
1620 | if (peer_sort(peer) != BGP_PEER_IBGP) { | |
1621 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_UNICAST], | |
1622 | PEER_FLAG_REFLECTOR_CLIENT); | |
1623 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_MULTICAST], | |
1624 | PEER_FLAG_REFLECTOR_CLIENT); | |
1625 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_LABELED_UNICAST], | |
1626 | PEER_FLAG_REFLECTOR_CLIENT); | |
1627 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_MPLS_VPN], | |
1628 | PEER_FLAG_REFLECTOR_CLIENT); | |
1629 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_ENCAP], | |
1630 | PEER_FLAG_REFLECTOR_CLIENT); | |
7c40bf39 | 1631 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_FLOWSPEC], |
1632 | PEER_FLAG_REFLECTOR_CLIENT); | |
d62a17ae | 1633 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_UNICAST], |
1634 | PEER_FLAG_REFLECTOR_CLIENT); | |
1635 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_MULTICAST], | |
1636 | PEER_FLAG_REFLECTOR_CLIENT); | |
1637 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_LABELED_UNICAST], | |
1638 | PEER_FLAG_REFLECTOR_CLIENT); | |
1639 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_MPLS_VPN], | |
1640 | PEER_FLAG_REFLECTOR_CLIENT); | |
1641 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_ENCAP], | |
1642 | PEER_FLAG_REFLECTOR_CLIENT); | |
7c40bf39 | 1643 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_FLOWSPEC], |
1644 | PEER_FLAG_REFLECTOR_CLIENT); | |
d62a17ae | 1645 | UNSET_FLAG(peer->af_flags[AFI_L2VPN][SAFI_EVPN], |
1646 | PEER_FLAG_REFLECTOR_CLIENT); | |
1647 | } | |
1648 | ||
1649 | /* local-as reset */ | |
1650 | if (peer_sort(peer) != BGP_PEER_EBGP) { | |
1651 | peer->change_local_as = 0; | |
1652 | UNSET_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
1653 | UNSET_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
1654 | } | |
718e3744 | 1655 | } |
1656 | ||
1657 | /* If peer does not exist, create new one. If peer already exists, | |
1658 | set AS number to the peer. */ | |
d62a17ae | 1659 | int peer_remote_as(struct bgp *bgp, union sockunion *su, const char *conf_if, |
1660 | as_t *as, int as_type, afi_t afi, safi_t safi) | |
1661 | { | |
1662 | struct peer *peer; | |
1663 | as_t local_as; | |
1664 | ||
1665 | if (conf_if) | |
1666 | peer = peer_lookup_by_conf_if(bgp, conf_if); | |
1667 | else | |
1668 | peer = peer_lookup(bgp, su); | |
1669 | ||
1670 | if (peer) { | |
1671 | /* Not allowed for a dynamic peer. */ | |
1672 | if (peer_dynamic_neighbor(peer)) { | |
1673 | *as = peer->as; | |
1674 | return BGP_ERR_INVALID_FOR_DYNAMIC_PEER; | |
1675 | } | |
718e3744 | 1676 | |
d62a17ae | 1677 | /* When this peer is a member of peer-group. */ |
1678 | if (peer->group) { | |
1679 | if (peer->group->conf->as) { | |
1680 | /* Return peer group's AS number. */ | |
1681 | *as = peer->group->conf->as; | |
1682 | return BGP_ERR_PEER_GROUP_MEMBER; | |
1683 | } | |
1684 | if (peer_sort(peer->group->conf) == BGP_PEER_IBGP) { | |
1685 | if ((as_type != AS_INTERNAL) | |
1686 | && (bgp->as != *as)) { | |
1687 | *as = peer->as; | |
1688 | return BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT; | |
1689 | } | |
1690 | } else { | |
1691 | if ((as_type != AS_EXTERNAL) | |
1692 | && (bgp->as == *as)) { | |
1693 | *as = peer->as; | |
1694 | return BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT; | |
1695 | } | |
1696 | } | |
1697 | } | |
93406d87 | 1698 | |
d62a17ae | 1699 | /* Existing peer's AS number change. */ |
1700 | if (((peer->as_type == AS_SPECIFIED) && peer->as != *as) | |
1701 | || (peer->as_type != as_type)) | |
1702 | peer_as_change(peer, *as, as_type); | |
1703 | } else { | |
1704 | if (conf_if) | |
1705 | return BGP_ERR_NO_INTERFACE_CONFIG; | |
1706 | ||
1707 | /* If the peer is not part of our confederation, and its not an | |
1708 | iBGP peer then spoof the source AS */ | |
1709 | if (bgp_config_check(bgp, BGP_CONFIG_CONFEDERATION) | |
1710 | && !bgp_confederation_peers_check(bgp, *as) | |
1711 | && bgp->as != *as) | |
1712 | local_as = bgp->confed_id; | |
1713 | else | |
1714 | local_as = bgp->as; | |
1715 | ||
1716 | /* If this is IPv4 unicast configuration and "no bgp default | |
1717 | ipv4-unicast" is specified. */ | |
1718 | ||
1719 | if (bgp_flag_check(bgp, BGP_FLAG_NO_DEFAULT_IPV4) | |
1720 | && afi == AFI_IP && safi == SAFI_UNICAST) | |
1721 | peer_create(su, conf_if, bgp, local_as, *as, as_type, 0, | |
1722 | 0, NULL); | |
1723 | else | |
1724 | peer_create(su, conf_if, bgp, local_as, *as, as_type, | |
1725 | afi, safi, NULL); | |
1726 | } | |
718e3744 | 1727 | |
d62a17ae | 1728 | return 0; |
1729 | } | |
718e3744 | 1730 | |
9790f44f DS |
1731 | static void peer_group2peer_config_copy_af(struct peer_group *group, |
1732 | struct peer *peer, afi_t afi, | |
1733 | safi_t safi) | |
1734 | { | |
1735 | int in = FILTER_IN; | |
1736 | int out = FILTER_OUT; | |
1737 | struct peer *conf; | |
1738 | struct bgp_filter *pfilter; | |
1739 | struct bgp_filter *gfilter; | |
1740 | ||
1741 | conf = group->conf; | |
1742 | pfilter = &peer->filter[afi][safi]; | |
1743 | gfilter = &conf->filter[afi][safi]; | |
1744 | ||
1745 | /* peer af_flags apply */ | |
1746 | peer->af_flags[afi][safi] = conf->af_flags[afi][safi]; | |
1747 | ||
1748 | /* maximum-prefix */ | |
1749 | peer->pmax[afi][safi] = conf->pmax[afi][safi]; | |
1750 | peer->pmax_threshold[afi][safi] = conf->pmax_threshold[afi][safi]; | |
1751 | peer->pmax_restart[afi][safi] = conf->pmax_restart[afi][safi]; | |
1752 | ||
1753 | /* allowas-in */ | |
1754 | peer->allowas_in[afi][safi] = conf->allowas_in[afi][safi]; | |
1755 | ||
1756 | /* weight */ | |
1757 | peer->weight[afi][safi] = conf->weight[afi][safi]; | |
1758 | ||
1759 | /* default-originate route-map */ | |
1760 | if (conf->default_rmap[afi][safi].name) { | |
1761 | if (peer->default_rmap[afi][safi].name) | |
1762 | XFREE(MTYPE_BGP_FILTER_NAME, | |
1763 | peer->default_rmap[afi][safi].name); | |
1764 | peer->default_rmap[afi][safi].name = | |
1765 | XSTRDUP(MTYPE_BGP_FILTER_NAME, | |
1766 | conf->default_rmap[afi][safi].name); | |
1767 | peer->default_rmap[afi][safi].map = | |
1768 | conf->default_rmap[afi][safi].map; | |
1769 | } | |
1770 | ||
1771 | /* inbound filter apply */ | |
1772 | if (gfilter->dlist[in].name && !pfilter->dlist[in].name) { | |
1773 | if (pfilter->dlist[in].name) | |
1774 | XFREE(MTYPE_BGP_FILTER_NAME, pfilter->dlist[in].name); | |
1775 | pfilter->dlist[in].name = | |
1776 | XSTRDUP(MTYPE_BGP_FILTER_NAME, gfilter->dlist[in].name); | |
1777 | pfilter->dlist[in].alist = gfilter->dlist[in].alist; | |
1778 | } | |
1779 | ||
1780 | if (gfilter->plist[in].name && !pfilter->plist[in].name) { | |
1781 | if (pfilter->plist[in].name) | |
1782 | XFREE(MTYPE_BGP_FILTER_NAME, pfilter->plist[in].name); | |
1783 | pfilter->plist[in].name = | |
1784 | XSTRDUP(MTYPE_BGP_FILTER_NAME, gfilter->plist[in].name); | |
1785 | pfilter->plist[in].plist = gfilter->plist[in].plist; | |
1786 | } | |
1787 | ||
1788 | if (gfilter->aslist[in].name && !pfilter->aslist[in].name) { | |
1789 | if (pfilter->aslist[in].name) | |
1790 | XFREE(MTYPE_BGP_FILTER_NAME, pfilter->aslist[in].name); | |
1791 | pfilter->aslist[in].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, | |
1792 | gfilter->aslist[in].name); | |
1793 | pfilter->aslist[in].aslist = gfilter->aslist[in].aslist; | |
1794 | } | |
1795 | ||
1796 | if (gfilter->map[RMAP_IN].name && !pfilter->map[RMAP_IN].name) { | |
1797 | if (pfilter->map[RMAP_IN].name) | |
1798 | XFREE(MTYPE_BGP_FILTER_NAME, | |
1799 | pfilter->map[RMAP_IN].name); | |
1800 | pfilter->map[RMAP_IN].name = XSTRDUP( | |
1801 | MTYPE_BGP_FILTER_NAME, gfilter->map[RMAP_IN].name); | |
1802 | pfilter->map[RMAP_IN].map = gfilter->map[RMAP_IN].map; | |
1803 | } | |
1804 | ||
1805 | /* outbound filter apply */ | |
1806 | if (gfilter->dlist[out].name) { | |
1807 | if (pfilter->dlist[out].name) | |
1808 | XFREE(MTYPE_BGP_FILTER_NAME, pfilter->dlist[out].name); | |
1809 | pfilter->dlist[out].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, | |
1810 | gfilter->dlist[out].name); | |
1811 | pfilter->dlist[out].alist = gfilter->dlist[out].alist; | |
1812 | } else { | |
1813 | if (pfilter->dlist[out].name) | |
1814 | XFREE(MTYPE_BGP_FILTER_NAME, pfilter->dlist[out].name); | |
1815 | pfilter->dlist[out].name = NULL; | |
1816 | pfilter->dlist[out].alist = NULL; | |
1817 | } | |
1818 | ||
1819 | if (gfilter->plist[out].name) { | |
1820 | if (pfilter->plist[out].name) | |
1821 | XFREE(MTYPE_BGP_FILTER_NAME, pfilter->plist[out].name); | |
1822 | pfilter->plist[out].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, | |
1823 | gfilter->plist[out].name); | |
1824 | pfilter->plist[out].plist = gfilter->plist[out].plist; | |
1825 | } else { | |
1826 | if (pfilter->plist[out].name) | |
1827 | XFREE(MTYPE_BGP_FILTER_NAME, pfilter->plist[out].name); | |
1828 | pfilter->plist[out].name = NULL; | |
1829 | pfilter->plist[out].plist = NULL; | |
1830 | } | |
1831 | ||
1832 | if (gfilter->aslist[out].name) { | |
1833 | if (pfilter->aslist[out].name) | |
1834 | XFREE(MTYPE_BGP_FILTER_NAME, pfilter->aslist[out].name); | |
1835 | pfilter->aslist[out].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, | |
1836 | gfilter->aslist[out].name); | |
1837 | pfilter->aslist[out].aslist = gfilter->aslist[out].aslist; | |
1838 | } else { | |
1839 | if (pfilter->aslist[out].name) | |
1840 | XFREE(MTYPE_BGP_FILTER_NAME, pfilter->aslist[out].name); | |
1841 | pfilter->aslist[out].name = NULL; | |
1842 | pfilter->aslist[out].aslist = NULL; | |
1843 | } | |
1844 | ||
1845 | if (gfilter->map[RMAP_OUT].name) { | |
1846 | if (pfilter->map[RMAP_OUT].name) | |
1847 | XFREE(MTYPE_BGP_FILTER_NAME, | |
1848 | pfilter->map[RMAP_OUT].name); | |
1849 | pfilter->map[RMAP_OUT].name = XSTRDUP( | |
1850 | MTYPE_BGP_FILTER_NAME, gfilter->map[RMAP_OUT].name); | |
1851 | pfilter->map[RMAP_OUT].map = gfilter->map[RMAP_OUT].map; | |
1852 | } else { | |
1853 | if (pfilter->map[RMAP_OUT].name) | |
1854 | XFREE(MTYPE_BGP_FILTER_NAME, | |
1855 | pfilter->map[RMAP_OUT].name); | |
1856 | pfilter->map[RMAP_OUT].name = NULL; | |
1857 | pfilter->map[RMAP_OUT].map = NULL; | |
1858 | } | |
1859 | ||
1860 | if (gfilter->usmap.name) { | |
1861 | if (pfilter->usmap.name) | |
1862 | XFREE(MTYPE_BGP_FILTER_NAME, pfilter->usmap.name); | |
1863 | pfilter->usmap.name = | |
1864 | XSTRDUP(MTYPE_BGP_FILTER_NAME, gfilter->usmap.name); | |
1865 | pfilter->usmap.map = gfilter->usmap.map; | |
1866 | } else { | |
1867 | if (pfilter->usmap.name) | |
1868 | XFREE(MTYPE_BGP_FILTER_NAME, pfilter->usmap.name); | |
1869 | pfilter->usmap.name = NULL; | |
1870 | pfilter->usmap.map = NULL; | |
1871 | } | |
1872 | } | |
1873 | ||
1874 | static int peer_activate_af(struct peer *peer, afi_t afi, safi_t safi) | |
d62a17ae | 1875 | { |
1876 | int active; | |
718e3744 | 1877 | |
d62a17ae | 1878 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
1879 | zlog_err("%s was called for peer-group %s", __func__, | |
1880 | peer->host); | |
1881 | return 1; | |
1882 | } | |
3f9c7369 | 1883 | |
d62a17ae | 1884 | /* Do not activate a peer for both SAFI_UNICAST and SAFI_LABELED_UNICAST |
1885 | */ | |
1886 | if ((safi == SAFI_UNICAST && peer->afc[afi][SAFI_LABELED_UNICAST]) | |
1887 | || (safi == SAFI_LABELED_UNICAST && peer->afc[afi][SAFI_UNICAST])) | |
1888 | return BGP_ERR_PEER_SAFI_CONFLICT; | |
1889 | ||
1890 | /* Nothing to do if we've already activated this peer */ | |
1891 | if (peer->afc[afi][safi]) | |
1892 | return 0; | |
1893 | ||
1894 | if (peer_af_create(peer, afi, safi) == NULL) | |
1895 | return 1; | |
1896 | ||
1897 | active = peer_active(peer); | |
1898 | peer->afc[afi][safi] = 1; | |
1899 | ||
9790f44f | 1900 | if (peer->group) |
a4d82a8a | 1901 | peer_group2peer_config_copy_af(peer->group, peer, afi, safi); |
9790f44f | 1902 | |
d62a17ae | 1903 | if (!active && peer_active(peer)) { |
1904 | bgp_timer_set(peer); | |
1905 | } else { | |
1906 | if (peer->status == Established) { | |
1907 | if (CHECK_FLAG(peer->cap, PEER_CAP_DYNAMIC_RCV)) { | |
1908 | peer->afc_adv[afi][safi] = 1; | |
1909 | bgp_capability_send(peer, afi, safi, | |
1910 | CAPABILITY_CODE_MP, | |
1911 | CAPABILITY_ACTION_SET); | |
1912 | if (peer->afc_recv[afi][safi]) { | |
1913 | peer->afc_nego[afi][safi] = 1; | |
1914 | bgp_announce_route(peer, afi, safi); | |
1915 | } | |
1916 | } else { | |
1917 | peer->last_reset = PEER_DOWN_AF_ACTIVATE; | |
1918 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
1919 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
1920 | } | |
1921 | } | |
64c1a9b5 DS |
1922 | if (peer->status == OpenSent || peer->status == OpenConfirm) { |
1923 | peer->last_reset = PEER_DOWN_AF_ACTIVATE; | |
1924 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
1925 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
1926 | } | |
d62a17ae | 1927 | } |
04b6bdc0 | 1928 | |
d62a17ae | 1929 | return 0; |
1930 | } | |
9e08021c | 1931 | |
d62a17ae | 1932 | /* Activate the peer or peer group for specified AFI and SAFI. */ |
1933 | int peer_activate(struct peer *peer, afi_t afi, safi_t safi) | |
1934 | { | |
1935 | int ret = 0; | |
1936 | struct peer_group *group; | |
1937 | struct listnode *node, *nnode; | |
1938 | struct peer *tmp_peer; | |
318cac96 | 1939 | struct bgp *bgp; |
d62a17ae | 1940 | |
1941 | /* Nothing to do if we've already activated this peer */ | |
1942 | if (peer->afc[afi][safi]) | |
1943 | return ret; | |
1944 | ||
318cac96 DW |
1945 | bgp = peer->bgp; |
1946 | ||
d62a17ae | 1947 | /* This is a peer-group so activate all of the members of the |
1948 | * peer-group as well */ | |
1949 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
1950 | ||
1951 | /* Do not activate a peer for both SAFI_UNICAST and | |
1952 | * SAFI_LABELED_UNICAST */ | |
1953 | if ((safi == SAFI_UNICAST | |
1954 | && peer->afc[afi][SAFI_LABELED_UNICAST]) | |
1955 | || (safi == SAFI_LABELED_UNICAST | |
1956 | && peer->afc[afi][SAFI_UNICAST])) | |
1957 | return BGP_ERR_PEER_SAFI_CONFLICT; | |
1958 | ||
1959 | peer->afc[afi][safi] = 1; | |
1960 | group = peer->group; | |
1961 | ||
1962 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, tmp_peer)) { | |
9790f44f | 1963 | ret |= peer_activate_af(tmp_peer, afi, safi); |
d62a17ae | 1964 | } |
1965 | } else { | |
9790f44f | 1966 | ret |= peer_activate_af(peer, afi, safi); |
d62a17ae | 1967 | } |
718e3744 | 1968 | |
a4d82a8a PZ |
1969 | /* If this is the first peer to be activated for this |
1970 | * afi/labeled-unicast recalc bestpaths to trigger label allocation */ | |
1971 | if (safi == SAFI_LABELED_UNICAST | |
1972 | && !bgp->allocate_mpls_labels[afi][SAFI_UNICAST]) { | |
318cac96 DW |
1973 | |
1974 | if (BGP_DEBUG(zebra, ZEBRA)) | |
a4d82a8a PZ |
1975 | zlog_info( |
1976 | "peer(s) are now active for labeled-unicast, allocate MPLS labels"); | |
318cac96 DW |
1977 | |
1978 | bgp->allocate_mpls_labels[afi][SAFI_UNICAST] = 1; | |
1979 | bgp_recalculate_afi_safi_bestpaths(bgp, afi, SAFI_UNICAST); | |
1980 | } | |
1981 | ||
b98f7728 PG |
1982 | if (safi == SAFI_FLOWSPEC) { |
1983 | /* connect to table manager */ | |
1984 | bgp_zebra_init_tm_connect(); | |
1985 | } | |
d62a17ae | 1986 | return ret; |
718e3744 | 1987 | } |
6b0655a2 | 1988 | |
d62a17ae | 1989 | static int non_peergroup_deactivate_af(struct peer *peer, afi_t afi, |
1990 | safi_t safi) | |
718e3744 | 1991 | { |
d62a17ae | 1992 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
1993 | zlog_err("%s was called for peer-group %s", __func__, | |
1994 | peer->host); | |
1995 | return 1; | |
1996 | } | |
718e3744 | 1997 | |
d62a17ae | 1998 | /* Nothing to do if we've already deactivated this peer */ |
1999 | if (!peer->afc[afi][safi]) | |
2000 | return 0; | |
718e3744 | 2001 | |
d62a17ae | 2002 | /* De-activate the address family configuration. */ |
2003 | peer->afc[afi][safi] = 0; | |
718e3744 | 2004 | |
d62a17ae | 2005 | if (peer_af_delete(peer, afi, safi) != 0) { |
2006 | zlog_err("couldn't delete af structure for peer %s", | |
2007 | peer->host); | |
2008 | return 1; | |
2009 | } | |
718e3744 | 2010 | |
d62a17ae | 2011 | if (peer->status == Established) { |
2012 | if (CHECK_FLAG(peer->cap, PEER_CAP_DYNAMIC_RCV)) { | |
2013 | peer->afc_adv[afi][safi] = 0; | |
2014 | peer->afc_nego[afi][safi] = 0; | |
2015 | ||
2016 | if (peer_active_nego(peer)) { | |
2017 | bgp_capability_send(peer, afi, safi, | |
2018 | CAPABILITY_CODE_MP, | |
2019 | CAPABILITY_ACTION_UNSET); | |
2020 | bgp_clear_route(peer, afi, safi); | |
2021 | peer->pcount[afi][safi] = 0; | |
2022 | } else { | |
2023 | peer->last_reset = PEER_DOWN_NEIGHBOR_DELETE; | |
2024 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
2025 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
2026 | } | |
2027 | } else { | |
2028 | peer->last_reset = PEER_DOWN_NEIGHBOR_DELETE; | |
2029 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
2030 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
2031 | } | |
2032 | } | |
718e3744 | 2033 | |
d62a17ae | 2034 | return 0; |
2035 | } | |
718e3744 | 2036 | |
d62a17ae | 2037 | int peer_deactivate(struct peer *peer, afi_t afi, safi_t safi) |
718e3744 | 2038 | { |
d62a17ae | 2039 | int ret = 0; |
2040 | struct peer_group *group; | |
2041 | struct peer *tmp_peer; | |
2042 | struct listnode *node, *nnode; | |
318cac96 | 2043 | struct bgp *bgp; |
718e3744 | 2044 | |
d62a17ae | 2045 | /* Nothing to do if we've already de-activated this peer */ |
2046 | if (!peer->afc[afi][safi]) | |
2047 | return ret; | |
718e3744 | 2048 | |
d62a17ae | 2049 | /* This is a peer-group so de-activate all of the members of the |
2050 | * peer-group as well */ | |
2051 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
2052 | peer->afc[afi][safi] = 0; | |
2053 | group = peer->group; | |
718e3744 | 2054 | |
d62a17ae | 2055 | if (peer_af_delete(peer, afi, safi) != 0) { |
2056 | zlog_err("couldn't delete af structure for peer %s", | |
2057 | peer->host); | |
2058 | } | |
0299c004 | 2059 | |
d62a17ae | 2060 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, tmp_peer)) { |
2061 | ret |= non_peergroup_deactivate_af(tmp_peer, afi, safi); | |
2062 | } | |
2063 | } else { | |
2064 | ret |= non_peergroup_deactivate_af(peer, afi, safi); | |
2065 | } | |
718e3744 | 2066 | |
318cac96 DW |
2067 | bgp = peer->bgp; |
2068 | ||
a4d82a8a PZ |
2069 | /* If this is the last peer to be deactivated for this |
2070 | * afi/labeled-unicast recalc bestpaths to trigger label deallocation */ | |
2071 | if (safi == SAFI_LABELED_UNICAST | |
2072 | && bgp->allocate_mpls_labels[afi][SAFI_UNICAST] | |
2073 | && !bgp_afi_safi_peer_exists(bgp, afi, safi)) { | |
318cac96 DW |
2074 | |
2075 | if (BGP_DEBUG(zebra, ZEBRA)) | |
a4d82a8a PZ |
2076 | zlog_info( |
2077 | "peer(s) are no longer active for labeled-unicast, deallocate MPLS labels"); | |
318cac96 DW |
2078 | |
2079 | bgp->allocate_mpls_labels[afi][SAFI_UNICAST] = 0; | |
2080 | bgp_recalculate_afi_safi_bestpaths(bgp, afi, SAFI_UNICAST); | |
2081 | } | |
d62a17ae | 2082 | return ret; |
2083 | } | |
718e3744 | 2084 | |
d62a17ae | 2085 | int peer_afc_set(struct peer *peer, afi_t afi, safi_t safi, int enable) |
2086 | { | |
2087 | if (enable) | |
2088 | return peer_activate(peer, afi, safi); | |
2089 | else | |
2090 | return peer_deactivate(peer, afi, safi); | |
718e3744 | 2091 | } |
2092 | ||
d62a17ae | 2093 | static void peer_nsf_stop(struct peer *peer) |
718e3744 | 2094 | { |
d62a17ae | 2095 | afi_t afi; |
2096 | safi_t safi; | |
718e3744 | 2097 | |
d62a17ae | 2098 | UNSET_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT); |
2099 | UNSET_FLAG(peer->sflags, PEER_STATUS_NSF_MODE); | |
718e3744 | 2100 | |
d62a17ae | 2101 | for (afi = AFI_IP; afi < AFI_MAX; afi++) |
a08ca0a7 | 2102 | for (safi = SAFI_UNICAST; safi <= SAFI_MPLS_VPN; safi++) |
d62a17ae | 2103 | peer->nsf[afi][safi] = 0; |
2104 | ||
2105 | if (peer->t_gr_restart) { | |
2106 | BGP_TIMER_OFF(peer->t_gr_restart); | |
2107 | if (bgp_debug_neighbor_events(peer)) | |
2108 | zlog_debug("%s graceful restart timer stopped", | |
2109 | peer->host); | |
1ff9a340 | 2110 | } |
d62a17ae | 2111 | if (peer->t_gr_stale) { |
2112 | BGP_TIMER_OFF(peer->t_gr_stale); | |
2113 | if (bgp_debug_neighbor_events(peer)) | |
2114 | zlog_debug( | |
2115 | "%s graceful restart stalepath timer stopped", | |
2116 | peer->host); | |
2117 | } | |
2118 | bgp_clear_route_all(peer); | |
2119 | } | |
718e3744 | 2120 | |
d62a17ae | 2121 | /* Delete peer from confguration. |
2122 | * | |
2123 | * The peer is moved to a dead-end "Deleted" neighbour-state, to allow | |
2124 | * it to "cool off" and refcounts to hit 0, at which state it is freed. | |
2125 | * | |
2126 | * This function /should/ take care to be idempotent, to guard against | |
2127 | * it being called multiple times through stray events that come in | |
2128 | * that happen to result in this function being called again. That | |
2129 | * said, getting here for a "Deleted" peer is a bug in the neighbour | |
2130 | * FSM. | |
2131 | */ | |
2132 | int peer_delete(struct peer *peer) | |
2133 | { | |
2134 | int i; | |
2135 | afi_t afi; | |
2136 | safi_t safi; | |
2137 | struct bgp *bgp; | |
2138 | struct bgp_filter *filter; | |
2139 | struct listnode *pn; | |
2140 | int accept_peer; | |
f14e6fdb | 2141 | |
d62a17ae | 2142 | assert(peer->status != Deleted); |
718e3744 | 2143 | |
d62a17ae | 2144 | bgp = peer->bgp; |
2145 | accept_peer = CHECK_FLAG(peer->sflags, PEER_STATUS_ACCEPT_PEER); | |
080b97f2 | 2146 | |
424ab01d QY |
2147 | bgp_reads_off(peer); |
2148 | bgp_writes_off(peer); | |
2149 | assert(!CHECK_FLAG(peer->thread_flags, PEER_THREAD_WRITES_ON)); | |
2150 | assert(!CHECK_FLAG(peer->thread_flags, PEER_THREAD_READS_ON)); | |
2151 | ||
d62a17ae | 2152 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT)) |
2153 | peer_nsf_stop(peer); | |
718e3744 | 2154 | |
d62a17ae | 2155 | SET_FLAG(peer->flags, PEER_FLAG_DELETE); |
718e3744 | 2156 | |
d62a17ae | 2157 | /* If this peer belongs to peer group, clear up the |
2158 | relationship. */ | |
2159 | if (peer->group) { | |
2160 | if (peer_dynamic_neighbor(peer)) | |
2161 | peer_drop_dynamic_neighbor(peer); | |
718e3744 | 2162 | |
d62a17ae | 2163 | if ((pn = listnode_lookup(peer->group->peer, peer))) { |
2164 | peer = peer_unlock( | |
2165 | peer); /* group->peer list reference */ | |
2166 | list_delete_node(peer->group->peer, pn); | |
2167 | } | |
2168 | peer->group = NULL; | |
2169 | } | |
718e3744 | 2170 | |
d62a17ae | 2171 | /* Withdraw all information from routing table. We can not use |
2172 | * BGP_EVENT_ADD (peer, BGP_Stop) at here. Because the event is | |
2173 | * executed after peer structure is deleted. | |
2174 | */ | |
2175 | peer->last_reset = PEER_DOWN_NEIGHBOR_DELETE; | |
2176 | bgp_stop(peer); | |
2177 | UNSET_FLAG(peer->flags, PEER_FLAG_DELETE); | |
2178 | ||
2179 | if (peer->doppelganger) { | |
2180 | peer->doppelganger->doppelganger = NULL; | |
2181 | peer->doppelganger = NULL; | |
2182 | } | |
718e3744 | 2183 | |
d62a17ae | 2184 | UNSET_FLAG(peer->sflags, PEER_STATUS_ACCEPT_PEER); |
2185 | bgp_fsm_change_status(peer, Deleted); | |
718e3744 | 2186 | |
d62a17ae | 2187 | /* Remove from NHT */ |
2188 | if (CHECK_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE)) | |
2189 | bgp_unlink_nexthop_by_peer(peer); | |
1ff9a340 | 2190 | |
d62a17ae | 2191 | /* Password configuration */ |
2192 | if (peer->password) { | |
2193 | XFREE(MTYPE_PEER_PASSWORD, peer->password); | |
2194 | peer->password = NULL; | |
1ff9a340 | 2195 | |
d62a17ae | 2196 | if (!accept_peer && !BGP_PEER_SU_UNSPEC(peer) |
2197 | && !CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
2198 | bgp_md5_unset(peer); | |
1ff9a340 | 2199 | } |
718e3744 | 2200 | |
d62a17ae | 2201 | bgp_timer_set(peer); /* stops all timers for Deleted */ |
718e3744 | 2202 | |
d62a17ae | 2203 | /* Delete from all peer list. */ |
2204 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP) | |
2205 | && (pn = listnode_lookup(bgp->peer, peer))) { | |
2206 | peer_unlock(peer); /* bgp peer list reference */ | |
2207 | list_delete_node(bgp->peer, pn); | |
2208 | hash_release(bgp->peerhash, peer); | |
2209 | } | |
718e3744 | 2210 | |
d62a17ae | 2211 | /* Buffers. */ |
2212 | if (peer->ibuf) { | |
424ab01d | 2213 | stream_fifo_free(peer->ibuf); |
d62a17ae | 2214 | peer->ibuf = NULL; |
2215 | } | |
f14e6fdb | 2216 | |
d62a17ae | 2217 | if (peer->obuf) { |
2218 | stream_fifo_free(peer->obuf); | |
2219 | peer->obuf = NULL; | |
2220 | } | |
f14e6fdb | 2221 | |
424ab01d | 2222 | if (peer->ibuf_work) { |
74ffbfe6 | 2223 | ringbuf_del(peer->ibuf_work); |
424ab01d QY |
2224 | peer->ibuf_work = NULL; |
2225 | } | |
2226 | ||
2227 | if (peer->obuf_work) { | |
2228 | stream_free(peer->obuf_work); | |
2229 | peer->obuf_work = NULL; | |
d62a17ae | 2230 | } |
f14e6fdb | 2231 | |
d62a17ae | 2232 | if (peer->scratch) { |
2233 | stream_free(peer->scratch); | |
2234 | peer->scratch = NULL; | |
2235 | } | |
f14e6fdb | 2236 | |
d62a17ae | 2237 | /* Local and remote addresses. */ |
2238 | if (peer->su_local) { | |
2239 | sockunion_free(peer->su_local); | |
2240 | peer->su_local = NULL; | |
2241 | } | |
f14e6fdb | 2242 | |
d62a17ae | 2243 | if (peer->su_remote) { |
2244 | sockunion_free(peer->su_remote); | |
2245 | peer->su_remote = NULL; | |
2246 | } | |
f14e6fdb | 2247 | |
d62a17ae | 2248 | /* Free filter related memory. */ |
05c7a1cc QY |
2249 | FOREACH_AFI_SAFI (afi, safi) { |
2250 | filter = &peer->filter[afi][safi]; | |
d62a17ae | 2251 | |
05c7a1cc QY |
2252 | for (i = FILTER_IN; i < FILTER_MAX; i++) { |
2253 | if (filter->dlist[i].name) { | |
2254 | XFREE(MTYPE_BGP_FILTER_NAME, | |
2255 | filter->dlist[i].name); | |
2256 | filter->dlist[i].name = NULL; | |
d62a17ae | 2257 | } |
2258 | ||
05c7a1cc QY |
2259 | if (filter->plist[i].name) { |
2260 | XFREE(MTYPE_BGP_FILTER_NAME, | |
2261 | filter->plist[i].name); | |
2262 | filter->plist[i].name = NULL; | |
d62a17ae | 2263 | } |
2264 | ||
05c7a1cc | 2265 | if (filter->aslist[i].name) { |
d62a17ae | 2266 | XFREE(MTYPE_BGP_FILTER_NAME, |
05c7a1cc QY |
2267 | filter->aslist[i].name); |
2268 | filter->aslist[i].name = NULL; | |
d62a17ae | 2269 | } |
05c7a1cc | 2270 | } |
d62a17ae | 2271 | |
05c7a1cc QY |
2272 | for (i = RMAP_IN; i < RMAP_MAX; i++) { |
2273 | if (filter->map[i].name) { | |
2274 | XFREE(MTYPE_BGP_FILTER_NAME, | |
2275 | filter->map[i].name); | |
2276 | filter->map[i].name = NULL; | |
d62a17ae | 2277 | } |
2278 | } | |
f14e6fdb | 2279 | |
05c7a1cc QY |
2280 | if (filter->usmap.name) { |
2281 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
2282 | filter->usmap.name = NULL; | |
2283 | } | |
2284 | ||
2285 | if (peer->default_rmap[afi][safi].name) { | |
2286 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
2287 | peer->default_rmap[afi][safi].name); | |
2288 | peer->default_rmap[afi][safi].name = NULL; | |
2289 | } | |
2290 | } | |
2291 | ||
a2addae8 RW |
2292 | FOREACH_AFI_SAFI (afi, safi) |
2293 | peer_af_delete(peer, afi, safi); | |
f14e6fdb | 2294 | |
d62a17ae | 2295 | if (peer->hostname) { |
2296 | XFREE(MTYPE_BGP_PEER_HOST, peer->hostname); | |
2297 | peer->hostname = NULL; | |
2298 | } | |
f14e6fdb | 2299 | |
d62a17ae | 2300 | if (peer->domainname) { |
2301 | XFREE(MTYPE_BGP_PEER_HOST, peer->domainname); | |
2302 | peer->domainname = NULL; | |
2303 | } | |
f14e6fdb | 2304 | |
d62a17ae | 2305 | peer_unlock(peer); /* initial reference */ |
f14e6fdb | 2306 | |
d62a17ae | 2307 | return 0; |
fe7d2a48 DS |
2308 | } |
2309 | ||
d62a17ae | 2310 | static int peer_group_cmp(struct peer_group *g1, struct peer_group *g2) |
2311 | { | |
2312 | return strcmp(g1->name, g2->name); | |
6aeb9e78 DS |
2313 | } |
2314 | ||
d62a17ae | 2315 | /* Peer group cofiguration. */ |
2316 | static struct peer_group *peer_group_new(void) | |
718e3744 | 2317 | { |
d62a17ae | 2318 | return (struct peer_group *)XCALLOC(MTYPE_PEER_GROUP, |
2319 | sizeof(struct peer_group)); | |
718e3744 | 2320 | } |
2321 | ||
d62a17ae | 2322 | static void peer_group_free(struct peer_group *group) |
718e3744 | 2323 | { |
d62a17ae | 2324 | XFREE(MTYPE_PEER_GROUP, group); |
718e3744 | 2325 | } |
2326 | ||
d62a17ae | 2327 | struct peer_group *peer_group_lookup(struct bgp *bgp, const char *name) |
718e3744 | 2328 | { |
d62a17ae | 2329 | struct peer_group *group; |
2330 | struct listnode *node, *nnode; | |
2331 | ||
2332 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
2333 | if (strcmp(group->name, name) == 0) | |
2334 | return group; | |
2335 | } | |
2336 | return NULL; | |
2337 | } | |
2338 | ||
2339 | struct peer_group *peer_group_get(struct bgp *bgp, const char *name) | |
2340 | { | |
2341 | struct peer_group *group; | |
2342 | afi_t afi; | |
2343 | ||
2344 | group = peer_group_lookup(bgp, name); | |
2345 | if (group) | |
2346 | return group; | |
2347 | ||
2348 | group = peer_group_new(); | |
2349 | group->bgp = bgp; | |
2350 | if (group->name) | |
2351 | XFREE(MTYPE_PEER_GROUP_HOST, group->name); | |
2352 | group->name = XSTRDUP(MTYPE_PEER_GROUP_HOST, name); | |
2353 | group->peer = list_new(); | |
2354 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
2355 | group->listen_range[afi] = list_new(); | |
2356 | group->conf = peer_new(bgp); | |
2357 | if (!bgp_flag_check(bgp, BGP_FLAG_NO_DEFAULT_IPV4)) | |
2358 | group->conf->afc[AFI_IP][SAFI_UNICAST] = 1; | |
2359 | if (group->conf->host) | |
2360 | XFREE(MTYPE_BGP_PEER_HOST, group->conf->host); | |
2361 | group->conf->host = XSTRDUP(MTYPE_BGP_PEER_HOST, name); | |
2362 | group->conf->group = group; | |
2363 | group->conf->as = 0; | |
2364 | group->conf->ttl = 1; | |
2365 | group->conf->gtsm_hops = 0; | |
2366 | group->conf->v_routeadv = BGP_DEFAULT_EBGP_ROUTEADV; | |
2367 | UNSET_FLAG(group->conf->config, PEER_CONFIG_TIMER); | |
d25e4efc | 2368 | UNSET_FLAG(group->conf->config, PEER_GROUP_CONFIG_TIMER); |
d62a17ae | 2369 | UNSET_FLAG(group->conf->config, PEER_CONFIG_CONNECT); |
2370 | group->conf->keepalive = 0; | |
2371 | group->conf->holdtime = 0; | |
2372 | group->conf->connect = 0; | |
2373 | SET_FLAG(group->conf->sflags, PEER_STATUS_GROUP); | |
2374 | listnode_add_sort(bgp->group, group); | |
718e3744 | 2375 | |
d62a17ae | 2376 | return group; |
718e3744 | 2377 | } |
2378 | ||
d62a17ae | 2379 | static void peer_group2peer_config_copy(struct peer_group *group, |
2380 | struct peer *peer) | |
ad4cbda1 | 2381 | { |
d62a17ae | 2382 | struct peer *conf; |
89898ced | 2383 | int saved_flags = 0; |
ad4cbda1 | 2384 | |
d62a17ae | 2385 | conf = group->conf; |
ad4cbda1 | 2386 | |
d62a17ae | 2387 | /* remote-as */ |
2388 | if (conf->as) | |
2389 | peer->as = conf->as; | |
718e3744 | 2390 | |
d62a17ae | 2391 | /* remote-as */ |
2392 | if (conf->change_local_as) | |
2393 | peer->change_local_as = conf->change_local_as; | |
1758dbaa | 2394 | |
d62a17ae | 2395 | /* TTL */ |
2396 | peer->ttl = conf->ttl; | |
518f0eb1 | 2397 | |
d62a17ae | 2398 | /* GTSM hops */ |
2399 | peer->gtsm_hops = conf->gtsm_hops; | |
ad12dde6 | 2400 | |
89898ced QY |
2401 | /* These are per-peer specific flags and so we must preserve them */ |
2402 | saved_flags |= CHECK_FLAG(peer->flags, PEER_FLAG_IFPEER_V6ONLY); | |
2403 | saved_flags |= CHECK_FLAG(peer->flags, PEER_FLAG_SHUTDOWN); | |
d62a17ae | 2404 | peer->flags = conf->flags; |
89898ced | 2405 | SET_FLAG(peer->flags, saved_flags); |
ad4cbda1 | 2406 | |
d62a17ae | 2407 | /* peer config apply */ |
2408 | peer->config = conf->config; | |
ad4cbda1 | 2409 | |
d62a17ae | 2410 | /* peer timers apply */ |
2411 | peer->holdtime = conf->holdtime; | |
2412 | peer->keepalive = conf->keepalive; | |
2413 | peer->connect = conf->connect; | |
2414 | if (CHECK_FLAG(conf->config, PEER_CONFIG_CONNECT)) | |
2415 | peer->v_connect = conf->connect; | |
2416 | else | |
2417 | peer->v_connect = BGP_DEFAULT_CONNECT_RETRY; | |
6aeb9e78 | 2418 | |
d62a17ae | 2419 | /* advertisement-interval reset */ |
2420 | if (CHECK_FLAG(conf->config, PEER_CONFIG_ROUTEADV)) | |
2421 | peer->v_routeadv = conf->routeadv; | |
2422 | else if (peer_sort(peer) == BGP_PEER_IBGP) | |
2423 | peer->v_routeadv = BGP_DEFAULT_IBGP_ROUTEADV; | |
2424 | else | |
2425 | peer->v_routeadv = BGP_DEFAULT_EBGP_ROUTEADV; | |
718e3744 | 2426 | |
d62a17ae | 2427 | /* password apply */ |
2428 | if (conf->password && !peer->password) | |
2429 | peer->password = XSTRDUP(MTYPE_PEER_PASSWORD, conf->password); | |
718e3744 | 2430 | |
d62a17ae | 2431 | if (!BGP_PEER_SU_UNSPEC(peer)) |
2432 | bgp_md5_set(peer); | |
d4a7a753 | 2433 | |
d62a17ae | 2434 | /* update-source apply */ |
2435 | if (conf->update_source) { | |
2436 | if (peer->update_source) | |
2437 | sockunion_free(peer->update_source); | |
2438 | if (peer->update_if) { | |
2439 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); | |
2440 | peer->update_if = NULL; | |
2441 | } | |
2442 | peer->update_source = sockunion_dup(conf->update_source); | |
2443 | } else if (conf->update_if) { | |
2444 | if (peer->update_if) | |
2445 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); | |
2446 | if (peer->update_source) { | |
2447 | sockunion_free(peer->update_source); | |
2448 | peer->update_source = NULL; | |
2449 | } | |
2450 | peer->update_if = | |
2451 | XSTRDUP(MTYPE_PEER_UPDATE_SOURCE, conf->update_if); | |
2452 | } | |
cd92e548 | 2453 | |
d62a17ae | 2454 | bgp_bfd_peer_group2peer_copy(conf, peer); |
ad4cbda1 | 2455 | } |
718e3744 | 2456 | |
d62a17ae | 2457 | /* Peer group's remote AS configuration. */ |
2458 | int peer_group_remote_as(struct bgp *bgp, const char *group_name, as_t *as, | |
2459 | int as_type) | |
f14e6fdb | 2460 | { |
d62a17ae | 2461 | struct peer_group *group; |
2462 | struct peer *peer; | |
2463 | struct listnode *node, *nnode; | |
f14e6fdb | 2464 | |
d62a17ae | 2465 | group = peer_group_lookup(bgp, group_name); |
2466 | if (!group) | |
2467 | return -1; | |
f14e6fdb | 2468 | |
d62a17ae | 2469 | if ((as_type == group->conf->as_type) && (group->conf->as == *as)) |
2470 | return 0; | |
f14e6fdb | 2471 | |
f14e6fdb | 2472 | |
d62a17ae | 2473 | /* When we setup peer-group AS number all peer group member's AS |
2474 | number must be updated to same number. */ | |
2475 | peer_as_change(group->conf, *as, as_type); | |
f14e6fdb | 2476 | |
d62a17ae | 2477 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { |
2478 | if (((peer->as_type == AS_SPECIFIED) && peer->as != *as) | |
2479 | || (peer->as_type != as_type)) | |
2480 | peer_as_change(peer, *as, as_type); | |
2481 | } | |
f14e6fdb | 2482 | |
d62a17ae | 2483 | return 0; |
f14e6fdb DS |
2484 | } |
2485 | ||
d62a17ae | 2486 | int peer_group_delete(struct peer_group *group) |
f14e6fdb | 2487 | { |
d62a17ae | 2488 | struct bgp *bgp; |
2489 | struct peer *peer; | |
2490 | struct prefix *prefix; | |
2491 | struct peer *other; | |
2492 | struct listnode *node, *nnode; | |
2493 | afi_t afi; | |
f14e6fdb | 2494 | |
d62a17ae | 2495 | bgp = group->bgp; |
f14e6fdb | 2496 | |
d62a17ae | 2497 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { |
2498 | other = peer->doppelganger; | |
2499 | peer_delete(peer); | |
2500 | if (other && other->status != Deleted) { | |
2501 | other->group = NULL; | |
2502 | peer_delete(other); | |
2503 | } | |
2504 | } | |
affe9e99 | 2505 | list_delete_and_null(&group->peer); |
f14e6fdb | 2506 | |
d62a17ae | 2507 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
2508 | for (ALL_LIST_ELEMENTS(group->listen_range[afi], node, nnode, | |
2509 | prefix)) { | |
2510 | prefix_free(prefix); | |
2511 | } | |
affe9e99 | 2512 | list_delete_and_null(&group->listen_range[afi]); |
d62a17ae | 2513 | } |
f14e6fdb | 2514 | |
d62a17ae | 2515 | XFREE(MTYPE_PEER_GROUP_HOST, group->name); |
2516 | group->name = NULL; | |
0299c004 | 2517 | |
d62a17ae | 2518 | bfd_info_free(&(group->conf->bfd_info)); |
f14e6fdb | 2519 | |
d62a17ae | 2520 | group->conf->group = NULL; |
2521 | peer_delete(group->conf); | |
f14e6fdb | 2522 | |
d62a17ae | 2523 | /* Delete from all peer_group list. */ |
2524 | listnode_delete(bgp->group, group); | |
f14e6fdb | 2525 | |
d62a17ae | 2526 | peer_group_free(group); |
f14e6fdb | 2527 | |
d62a17ae | 2528 | return 0; |
2529 | } | |
f14e6fdb | 2530 | |
d62a17ae | 2531 | int peer_group_remote_as_delete(struct peer_group *group) |
2532 | { | |
2533 | struct peer *peer, *other; | |
2534 | struct listnode *node, *nnode; | |
f14e6fdb | 2535 | |
d62a17ae | 2536 | if ((group->conf->as_type == AS_UNSPECIFIED) |
2537 | || ((!group->conf->as) && (group->conf->as_type == AS_SPECIFIED))) | |
2538 | return 0; | |
f14e6fdb | 2539 | |
d62a17ae | 2540 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { |
2541 | other = peer->doppelganger; | |
f14e6fdb | 2542 | |
d62a17ae | 2543 | peer_delete(peer); |
f14e6fdb | 2544 | |
d62a17ae | 2545 | if (other && other->status != Deleted) { |
2546 | other->group = NULL; | |
2547 | peer_delete(other); | |
2548 | } | |
2549 | } | |
2550 | list_delete_all_node(group->peer); | |
f14e6fdb | 2551 | |
d62a17ae | 2552 | group->conf->as = 0; |
2553 | group->conf->as_type = AS_UNSPECIFIED; | |
f14e6fdb | 2554 | |
d62a17ae | 2555 | return 0; |
f14e6fdb | 2556 | } |
d62a17ae | 2557 | |
2558 | int peer_group_listen_range_add(struct peer_group *group, struct prefix *range) | |
f14e6fdb | 2559 | { |
d62a17ae | 2560 | struct prefix *prefix; |
2561 | struct listnode *node, *nnode; | |
2562 | afi_t afi; | |
f14e6fdb | 2563 | |
d62a17ae | 2564 | afi = family2afi(range->family); |
f14e6fdb | 2565 | |
d62a17ae | 2566 | /* Group needs remote AS configured. */ |
2567 | if (group->conf->as_type == AS_UNSPECIFIED) | |
2568 | return BGP_ERR_PEER_GROUP_NO_REMOTE_AS; | |
718e3744 | 2569 | |
d62a17ae | 2570 | /* Ensure no duplicates. Currently we don't care about overlaps. */ |
2571 | for (ALL_LIST_ELEMENTS(group->listen_range[afi], node, nnode, prefix)) { | |
2572 | if (prefix_same(range, prefix)) | |
2573 | return 0; | |
2574 | } | |
2575 | ||
2576 | prefix = prefix_new(); | |
2577 | prefix_copy(prefix, range); | |
2578 | listnode_add(group->listen_range[afi], prefix); | |
2579 | return 0; | |
718e3744 | 2580 | } |
6b0655a2 | 2581 | |
d62a17ae | 2582 | int peer_group_listen_range_del(struct peer_group *group, struct prefix *range) |
718e3744 | 2583 | { |
d62a17ae | 2584 | struct prefix *prefix, prefix2; |
2585 | struct listnode *node, *nnode; | |
2586 | struct peer *peer; | |
2587 | afi_t afi; | |
2588 | char buf[PREFIX2STR_BUFFER]; | |
718e3744 | 2589 | |
d62a17ae | 2590 | afi = family2afi(range->family); |
1ff9a340 | 2591 | |
d62a17ae | 2592 | /* Identify the listen range. */ |
2593 | for (ALL_LIST_ELEMENTS(group->listen_range[afi], node, nnode, prefix)) { | |
2594 | if (prefix_same(range, prefix)) | |
2595 | break; | |
1ff9a340 | 2596 | } |
718e3744 | 2597 | |
d62a17ae | 2598 | if (!prefix) |
2599 | return BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_NOT_FOUND; | |
2600 | ||
2601 | prefix2str(prefix, buf, sizeof(buf)); | |
2602 | ||
2603 | /* Dispose off any dynamic neighbors that exist due to this listen range | |
2604 | */ | |
2605 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
2606 | if (!peer_dynamic_neighbor(peer)) | |
2607 | continue; | |
2608 | ||
2609 | sockunion2hostprefix(&peer->su, &prefix2); | |
2610 | if (prefix_match(prefix, &prefix2)) { | |
2611 | if (bgp_debug_neighbor_events(peer)) | |
2612 | zlog_debug( | |
2613 | "Deleting dynamic neighbor %s group %s upon " | |
2614 | "delete of listen range %s", | |
2615 | peer->host, group->name, buf); | |
2616 | peer_delete(peer); | |
2617 | } | |
2618 | } | |
718e3744 | 2619 | |
d62a17ae | 2620 | /* Get rid of the listen range */ |
2621 | listnode_delete(group->listen_range[afi], prefix); | |
718e3744 | 2622 | |
d62a17ae | 2623 | return 0; |
2624 | } | |
e0701b79 | 2625 | |
d62a17ae | 2626 | /* Bind specified peer to peer group. */ |
2627 | int peer_group_bind(struct bgp *bgp, union sockunion *su, struct peer *peer, | |
2628 | struct peer_group *group, as_t *as) | |
2629 | { | |
2630 | int first_member = 0; | |
2631 | afi_t afi; | |
2632 | safi_t safi; | |
2633 | int cap_enhe_preset = 0; | |
2634 | ||
2635 | /* Lookup the peer. */ | |
2636 | if (!peer) | |
2637 | peer = peer_lookup(bgp, su); | |
2638 | ||
2639 | /* The peer exist, bind it to the peer-group */ | |
2640 | if (peer) { | |
ed9fb826 | 2641 | /* When the peer already belongs to a peer-group, check the |
d62a17ae | 2642 | * consistency. */ |
ed9fb826 DW |
2643 | if (peer_group_active(peer)) { |
2644 | ||
2645 | /* The peer is already bound to the peer-group, | |
d8a079e8 DW |
2646 | * nothing to do |
2647 | */ | |
ed9fb826 DW |
2648 | if (strcmp(peer->group->name, group->name) == 0) |
2649 | return 0; | |
2650 | else | |
2651 | return BGP_ERR_PEER_GROUP_CANT_CHANGE; | |
2652 | } | |
d62a17ae | 2653 | |
2654 | /* The peer has not specified a remote-as, inherit it from the | |
2655 | * peer-group */ | |
2656 | if (peer->as_type == AS_UNSPECIFIED) { | |
2657 | peer->as_type = group->conf->as_type; | |
2658 | peer->as = group->conf->as; | |
2659 | } | |
718e3744 | 2660 | |
d62a17ae | 2661 | if (!group->conf->as) { |
2662 | if (peer_sort(group->conf) != BGP_PEER_INTERNAL | |
2663 | && peer_sort(group->conf) != peer_sort(peer)) { | |
2664 | if (as) | |
2665 | *as = peer->as; | |
2666 | return BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT; | |
2667 | } | |
718e3744 | 2668 | |
d62a17ae | 2669 | if (peer_sort(group->conf) == BGP_PEER_INTERNAL) |
2670 | first_member = 1; | |
2671 | } | |
718e3744 | 2672 | |
d62a17ae | 2673 | if (CHECK_FLAG(peer->flags, PEER_FLAG_CAPABILITY_ENHE)) |
2674 | cap_enhe_preset = 1; | |
2675 | ||
2676 | peer_group2peer_config_copy(group, peer); | |
2677 | ||
2678 | /* | |
2679 | * Capability extended-nexthop is enabled for an interface | |
2680 | * neighbor by | |
2681 | * default. So, fix that up here. | |
2682 | */ | |
2683 | if (peer->conf_if && cap_enhe_preset) | |
2684 | peer_flag_set(peer, PEER_FLAG_CAPABILITY_ENHE); | |
2685 | ||
05c7a1cc QY |
2686 | FOREACH_AFI_SAFI (afi, safi) { |
2687 | if (group->conf->afc[afi][safi]) { | |
2688 | peer->afc[afi][safi] = 1; | |
2689 | ||
2690 | if (peer_af_find(peer, afi, safi) | |
2691 | || peer_af_create(peer, afi, safi)) { | |
2692 | peer_group2peer_config_copy_af( | |
2693 | group, peer, afi, safi); | |
2694 | } | |
2695 | } else if (peer->afc[afi][safi]) | |
2696 | peer_deactivate(peer, afi, safi); | |
a4d82a8a | 2697 | } |
d62a17ae | 2698 | |
2699 | if (peer->group) { | |
2700 | assert(group && peer->group == group); | |
2701 | } else { | |
2702 | struct listnode *pn; | |
2703 | pn = listnode_lookup(bgp->peer, peer); | |
2704 | list_delete_node(bgp->peer, pn); | |
2705 | peer->group = group; | |
2706 | listnode_add_sort(bgp->peer, peer); | |
2707 | ||
2708 | peer = peer_lock(peer); /* group->peer list reference */ | |
2709 | listnode_add(group->peer, peer); | |
2710 | } | |
718e3744 | 2711 | |
d62a17ae | 2712 | if (first_member) { |
2713 | /* Advertisement-interval reset */ | |
2714 | if (!CHECK_FLAG(group->conf->config, | |
2715 | PEER_CONFIG_ROUTEADV)) { | |
2716 | if (peer_sort(group->conf) == BGP_PEER_IBGP) | |
2717 | group->conf->v_routeadv = | |
2718 | BGP_DEFAULT_IBGP_ROUTEADV; | |
2719 | else | |
2720 | group->conf->v_routeadv = | |
2721 | BGP_DEFAULT_EBGP_ROUTEADV; | |
2722 | } | |
2723 | ||
2724 | /* ebgp-multihop reset */ | |
2725 | if (peer_sort(group->conf) == BGP_PEER_IBGP) | |
2726 | group->conf->ttl = MAXTTL; | |
2727 | ||
2728 | /* local-as reset */ | |
2729 | if (peer_sort(group->conf) != BGP_PEER_EBGP) { | |
2730 | group->conf->change_local_as = 0; | |
2731 | UNSET_FLAG(peer->flags, | |
2732 | PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
2733 | UNSET_FLAG(peer->flags, | |
2734 | PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
2735 | } | |
2736 | } | |
718e3744 | 2737 | |
d62a17ae | 2738 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); |
718e3744 | 2739 | |
d62a17ae | 2740 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
2741 | peer->last_reset = PEER_DOWN_RMAP_BIND; | |
2742 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
2743 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
2744 | } else { | |
2745 | bgp_session_reset(peer); | |
2746 | } | |
2747 | } | |
718e3744 | 2748 | |
d62a17ae | 2749 | /* Create a new peer. */ |
2750 | else { | |
2751 | if ((group->conf->as_type == AS_SPECIFIED) | |
2752 | && (!group->conf->as)) { | |
2753 | return BGP_ERR_PEER_GROUP_NO_REMOTE_AS; | |
2754 | } | |
718e3744 | 2755 | |
d62a17ae | 2756 | peer = peer_create(su, NULL, bgp, bgp->as, group->conf->as, |
2757 | group->conf->as_type, 0, 0, group); | |
718e3744 | 2758 | |
d62a17ae | 2759 | peer = peer_lock(peer); /* group->peer list reference */ |
2760 | listnode_add(group->peer, peer); | |
718e3744 | 2761 | |
d62a17ae | 2762 | peer_group2peer_config_copy(group, peer); |
a4ed4829 | 2763 | |
d62a17ae | 2764 | /* If the peer-group is active for this afi/safi then activate |
2765 | * for this peer */ | |
05c7a1cc QY |
2766 | FOREACH_AFI_SAFI (afi, safi) { |
2767 | if (group->conf->afc[afi][safi]) { | |
2768 | peer->afc[afi][safi] = 1; | |
2769 | peer_af_create(peer, afi, safi); | |
2770 | peer_group2peer_config_copy_af(group, peer, afi, | |
2771 | safi); | |
2772 | } else if (peer->afc[afi][safi]) | |
2773 | peer_deactivate(peer, afi, safi); | |
2774 | } | |
718e3744 | 2775 | |
d62a17ae | 2776 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); |
718e3744 | 2777 | |
d62a17ae | 2778 | /* Set up peer's events and timers. */ |
2779 | if (peer_active(peer)) | |
2780 | bgp_timer_set(peer); | |
2781 | } | |
718e3744 | 2782 | |
d62a17ae | 2783 | return 0; |
718e3744 | 2784 | } |
2785 | ||
d62a17ae | 2786 | int peer_group_unbind(struct bgp *bgp, struct peer *peer, |
2787 | struct peer_group *group) | |
718e3744 | 2788 | { |
d62a17ae | 2789 | struct peer *other; |
2790 | afi_t afi; | |
2791 | safi_t safi; | |
718e3744 | 2792 | |
d62a17ae | 2793 | if (group != peer->group) |
2794 | return BGP_ERR_PEER_GROUP_MISMATCH; | |
718e3744 | 2795 | |
05c7a1cc QY |
2796 | FOREACH_AFI_SAFI (afi, safi) { |
2797 | if (peer->afc[afi][safi]) { | |
2798 | peer->afc[afi][safi] = 0; | |
2799 | peer_af_flag_reset(peer, afi, safi); | |
2800 | ||
2801 | if (peer_af_delete(peer, afi, safi) != 0) { | |
2802 | zlog_err( | |
2803 | "couldn't delete af structure for peer %s", | |
2804 | peer->host); | |
d62a17ae | 2805 | } |
2806 | } | |
05c7a1cc | 2807 | } |
718e3744 | 2808 | |
d62a17ae | 2809 | assert(listnode_lookup(group->peer, peer)); |
2810 | peer_unlock(peer); /* peer group list reference */ | |
2811 | listnode_delete(group->peer, peer); | |
2812 | peer->group = NULL; | |
2813 | other = peer->doppelganger; | |
2814 | ||
2815 | if (group->conf->as) { | |
2816 | peer_delete(peer); | |
2817 | if (other && other->status != Deleted) { | |
2818 | if (other->group) { | |
2819 | peer_unlock(other); | |
2820 | listnode_delete(group->peer, other); | |
2821 | } | |
2822 | other->group = NULL; | |
2823 | peer_delete(other); | |
2824 | } | |
2825 | return 0; | |
2826 | } | |
718e3744 | 2827 | |
d62a17ae | 2828 | bgp_bfd_deregister_peer(peer); |
2829 | peer_global_config_reset(peer); | |
718e3744 | 2830 | |
d62a17ae | 2831 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
2832 | peer->last_reset = PEER_DOWN_RMAP_UNBIND; | |
2833 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
2834 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
2835 | } else | |
2836 | bgp_session_reset(peer); | |
c7122e14 | 2837 | |
718e3744 | 2838 | return 0; |
d62a17ae | 2839 | } |
718e3744 | 2840 | |
d62a17ae | 2841 | static int bgp_startup_timer_expire(struct thread *thread) |
2842 | { | |
2843 | struct bgp *bgp; | |
718e3744 | 2844 | |
d62a17ae | 2845 | bgp = THREAD_ARG(thread); |
2846 | bgp->t_startup = NULL; | |
718e3744 | 2847 | |
d62a17ae | 2848 | return 0; |
2849 | } | |
e0701b79 | 2850 | |
d62a17ae | 2851 | /* BGP instance creation by `router bgp' commands. */ |
2852 | static struct bgp *bgp_create(as_t *as, const char *name, | |
2853 | enum bgp_instance_type inst_type) | |
2854 | { | |
0291c246 MK |
2855 | struct bgp *bgp; |
2856 | afi_t afi; | |
2857 | safi_t safi; | |
d62a17ae | 2858 | |
2859 | if ((bgp = XCALLOC(MTYPE_BGP, sizeof(struct bgp))) == NULL) | |
2860 | return NULL; | |
2861 | ||
2862 | if (BGP_DEBUG(zebra, ZEBRA)) { | |
2863 | if (inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
2864 | zlog_debug("Creating Default VRF, AS %u", *as); | |
2865 | else | |
2866 | zlog_debug("Creating %s %s, AS %u", | |
2867 | (inst_type == BGP_INSTANCE_TYPE_VRF) | |
2868 | ? "VRF" | |
2869 | : "VIEW", | |
2870 | name, *as); | |
718e3744 | 2871 | } |
adbac85e | 2872 | |
d62a17ae | 2873 | bgp_lock(bgp); |
9df5ac49 | 2874 | bgp->heuristic_coalesce = true; |
d62a17ae | 2875 | bgp->inst_type = inst_type; |
2876 | bgp->vrf_id = (inst_type == BGP_INSTANCE_TYPE_DEFAULT) ? VRF_DEFAULT | |
2877 | : VRF_UNKNOWN; | |
2878 | bgp->peer_self = peer_new(bgp); | |
2879 | if (bgp->peer_self->host) | |
2880 | XFREE(MTYPE_BGP_PEER_HOST, bgp->peer_self->host); | |
2881 | bgp->peer_self->host = | |
2882 | XSTRDUP(MTYPE_BGP_PEER_HOST, "Static announcement"); | |
d77114b7 MK |
2883 | if (bgp->peer_self->hostname != NULL) { |
2884 | XFREE(MTYPE_BGP_PEER_HOST, bgp->peer_self->hostname); | |
2885 | bgp->peer_self->hostname = NULL; | |
2886 | } | |
6b3ee3a0 | 2887 | if (cmd_hostname_get()) |
60466a63 QY |
2888 | bgp->peer_self->hostname = |
2889 | XSTRDUP(MTYPE_BGP_PEER_HOST, cmd_hostname_get()); | |
d77114b7 MK |
2890 | |
2891 | if (bgp->peer_self->domainname != NULL) { | |
2892 | XFREE(MTYPE_BGP_PEER_HOST, bgp->peer_self->domainname); | |
2893 | bgp->peer_self->domainname = NULL; | |
2894 | } | |
6b3ee3a0 | 2895 | if (cmd_domainname_get()) |
60466a63 QY |
2896 | bgp->peer_self->domainname = |
2897 | XSTRDUP(MTYPE_BGP_PEER_HOST, cmd_domainname_get()); | |
d62a17ae | 2898 | bgp->peer = list_new(); |
2899 | bgp->peer->cmp = (int (*)(void *, void *))peer_cmp; | |
a4d82a8a | 2900 | bgp->peerhash = hash_create(peer_hash_key_make, peer_hash_same, |
3f65c5b1 | 2901 | "BGP Peer Hash"); |
40520c36 | 2902 | bgp->peerhash->max_size = BGP_PEER_MAX_HASH_SIZE; |
d62a17ae | 2903 | |
2904 | bgp->group = list_new(); | |
2905 | bgp->group->cmp = (int (*)(void *, void *))peer_group_cmp; | |
2906 | ||
05c7a1cc QY |
2907 | FOREACH_AFI_SAFI (afi, safi) { |
2908 | bgp->route[afi][safi] = bgp_table_init(afi, safi); | |
2909 | bgp->aggregate[afi][safi] = bgp_table_init(afi, safi); | |
2910 | bgp->rib[afi][safi] = bgp_table_init(afi, safi); | |
2911 | ||
2912 | /* Enable maximum-paths */ | |
2913 | bgp_maximum_paths_set(bgp, afi, safi, BGP_PEER_EBGP, | |
2914 | multipath_num, 0); | |
2915 | bgp_maximum_paths_set(bgp, afi, safi, BGP_PEER_IBGP, | |
2916 | multipath_num, 0); | |
2917 | } | |
d62a17ae | 2918 | |
2919 | bgp->v_update_delay = BGP_UPDATE_DELAY_DEF; | |
2920 | bgp->default_local_pref = BGP_DEFAULT_LOCAL_PREF; | |
2921 | bgp->default_subgroup_pkt_queue_max = | |
2922 | BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX; | |
2923 | bgp->default_holdtime = BGP_DEFAULT_HOLDTIME; | |
2924 | bgp->default_keepalive = BGP_DEFAULT_KEEPALIVE; | |
2925 | bgp->restart_time = BGP_DEFAULT_RESTART_TIME; | |
2926 | bgp->stalepath_time = BGP_DEFAULT_STALEPATH_TIME; | |
2927 | bgp->dynamic_neighbors_limit = BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT; | |
2928 | bgp->dynamic_neighbors_count = 0; | |
2929 | #if DFLT_BGP_IMPORT_CHECK | |
2930 | bgp_flag_set(bgp, BGP_FLAG_IMPORT_CHECK); | |
2931 | #endif | |
2932 | #if DFLT_BGP_SHOW_HOSTNAME | |
2933 | bgp_flag_set(bgp, BGP_FLAG_SHOW_HOSTNAME); | |
2934 | #endif | |
2935 | #if DFLT_BGP_LOG_NEIGHBOR_CHANGES | |
2936 | bgp_flag_set(bgp, BGP_FLAG_LOG_NEIGHBOR_CHANGES); | |
2937 | #endif | |
2938 | #if DFLT_BGP_DETERMINISTIC_MED | |
2939 | bgp_flag_set(bgp, BGP_FLAG_DETERMINISTIC_MED); | |
2940 | #endif | |
2941 | bgp->addpath_tx_id = BGP_ADDPATH_TX_ID_FOR_DEFAULT_ORIGINATE; | |
2942 | ||
2943 | bgp->as = *as; | |
2944 | ||
2945 | #if ENABLE_BGP_VNC | |
2946 | if (inst_type != BGP_INSTANCE_TYPE_VRF) { | |
2947 | bgp->rfapi = bgp_rfapi_new(bgp); | |
2948 | assert(bgp->rfapi); | |
2949 | assert(bgp->rfapi_cfg); | |
2950 | } | |
2951 | #endif /* ENABLE_BGP_VNC */ | |
adbac85e | 2952 | |
ddb5b488 PZ |
2953 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
2954 | bgp->vpn_policy[afi].tovpn_label = MPLS_LABEL_NONE; | |
2955 | bgp->vpn_policy[afi].tovpn_zebra_vrf_label_last_sent = | |
2956 | MPLS_LABEL_NONE; | |
2957 | } | |
d62a17ae | 2958 | if (name) { |
2959 | bgp->name = XSTRDUP(MTYPE_BGP, name); | |
2960 | } else { | |
2961 | /* TODO - The startup timer needs to be run for the whole of BGP | |
2962 | */ | |
2963 | thread_add_timer(bm->master, bgp_startup_timer_expire, bgp, | |
2964 | bgp->restart_time, &bgp->t_startup); | |
2965 | } | |
06370dac | 2966 | |
3572fb26 PZ |
2967 | /* printable name we can use in debug messages */ |
2968 | if (inst_type == BGP_INSTANCE_TYPE_DEFAULT) { | |
2969 | bgp->name_pretty = XSTRDUP(MTYPE_BGP, "VRF default"); | |
2970 | } else { | |
2971 | const char *n; | |
2972 | int len; | |
2973 | ||
2974 | if (bgp->name) | |
2975 | n = bgp->name; | |
2976 | else | |
2977 | n = "?"; | |
2978 | ||
2979 | len = 4 + 1 + strlen(n) + 1; /* "view foo\0" */ | |
2980 | ||
2981 | bgp->name_pretty = XCALLOC(MTYPE_BGP, len); | |
2982 | snprintf(bgp->name_pretty, len, "%s %s", | |
2983 | (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) | |
2984 | ? "VRF" | |
2985 | : "VIEW", | |
2986 | n); | |
2987 | } | |
2988 | ||
555e09d4 QY |
2989 | atomic_store_explicit(&bgp->wpkt_quanta, BGP_WRITE_PACKET_MAX, |
2990 | memory_order_relaxed); | |
2991 | atomic_store_explicit(&bgp->rpkt_quanta, BGP_READ_PACKET_MAX, | |
2992 | memory_order_relaxed); | |
d62a17ae | 2993 | bgp->coalesce_time = BGP_DEFAULT_SUBGROUP_COALESCE_TIME; |
adbac85e | 2994 | |
d62a17ae | 2995 | QOBJ_REG(bgp, bgp); |
adbac85e | 2996 | |
d62a17ae | 2997 | update_bgp_group_init(bgp); |
2998 | bgp_evpn_init(bgp); | |
2999 | return bgp; | |
718e3744 | 3000 | } |
3001 | ||
d62a17ae | 3002 | /* Return the "default VRF" instance of BGP. */ |
3003 | struct bgp *bgp_get_default(void) | |
718e3744 | 3004 | { |
d62a17ae | 3005 | struct bgp *bgp; |
3006 | struct listnode *node, *nnode; | |
3007 | ||
3008 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) | |
3009 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
3010 | return bgp; | |
3011 | return NULL; | |
718e3744 | 3012 | } |
3013 | ||
d62a17ae | 3014 | /* Lookup BGP entry. */ |
3015 | struct bgp *bgp_lookup(as_t as, const char *name) | |
718e3744 | 3016 | { |
d62a17ae | 3017 | struct bgp *bgp; |
3018 | struct listnode *node, *nnode; | |
6b0655a2 | 3019 | |
d62a17ae | 3020 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) |
3021 | if (bgp->as == as | |
3022 | && ((bgp->name == NULL && name == NULL) | |
3023 | || (bgp->name && name && strcmp(bgp->name, name) == 0))) | |
3024 | return bgp; | |
3025 | return NULL; | |
3026 | } | |
73d70fa6 | 3027 | |
d62a17ae | 3028 | /* Lookup BGP structure by view name. */ |
3029 | struct bgp *bgp_lookup_by_name(const char *name) | |
73d70fa6 | 3030 | { |
d62a17ae | 3031 | struct bgp *bgp; |
3032 | struct listnode *node, *nnode; | |
3033 | ||
3034 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) | |
3035 | if ((bgp->name == NULL && name == NULL) | |
3036 | || (bgp->name && name && strcmp(bgp->name, name) == 0)) | |
3037 | return bgp; | |
3038 | return NULL; | |
73d70fa6 DL |
3039 | } |
3040 | ||
d62a17ae | 3041 | /* Lookup BGP instance based on VRF id. */ |
3042 | /* Note: Only to be used for incoming messages from Zebra. */ | |
3043 | struct bgp *bgp_lookup_by_vrf_id(vrf_id_t vrf_id) | |
73d70fa6 | 3044 | { |
d62a17ae | 3045 | struct vrf *vrf; |
3046 | ||
3047 | /* Lookup VRF (in tree) and follow link. */ | |
3048 | vrf = vrf_lookup_by_id(vrf_id); | |
3049 | if (!vrf) | |
3050 | return NULL; | |
3051 | return (vrf->info) ? (struct bgp *)vrf->info : NULL; | |
73d70fa6 DL |
3052 | } |
3053 | ||
e5619c28 PG |
3054 | /* handle socket creation or deletion, if necessary |
3055 | * this is called for all new BGP instances | |
3056 | */ | |
996c9314 LB |
3057 | int bgp_handle_socket(struct bgp *bgp, struct vrf *vrf, vrf_id_t old_vrf_id, |
3058 | bool create) | |
e5619c28 PG |
3059 | { |
3060 | int ret = 0; | |
3061 | ||
3062 | /* Create BGP server socket, if listen mode not disabled */ | |
3063 | if (!bgp || bgp_option_check(BGP_OPT_NO_LISTEN)) | |
3064 | return 0; | |
996c9314 | 3065 | if (bgp->name && bgp->inst_type == BGP_INSTANCE_TYPE_VRF && vrf) { |
e5619c28 PG |
3066 | /* |
3067 | * suppress vrf socket | |
3068 | */ | |
3069 | if (create == FALSE) { | |
3070 | if (vrf_is_mapped_on_netns(vrf->vrf_id)) | |
3071 | bgp_close_vrf_socket(bgp); | |
3072 | else | |
3073 | ret = bgp_check_main_socket(create, bgp); | |
3074 | return ret; | |
3075 | } | |
3076 | /* do nothing | |
3077 | * if vrf_id did not change | |
3078 | */ | |
3079 | if (vrf->vrf_id == old_vrf_id) | |
3080 | return 0; | |
3081 | if (old_vrf_id != VRF_UNKNOWN) { | |
3082 | /* look for old socket. close it. */ | |
3083 | bgp_close_vrf_socket(bgp); | |
3084 | } | |
3085 | /* if backend is not yet identified ( VRF_UNKNOWN) then | |
3086 | * creation will be done later | |
3087 | */ | |
3088 | if (vrf->vrf_id == VRF_UNKNOWN) | |
3089 | return 0; | |
3090 | /* if BGP VRF instance requested | |
3091 | * if backend is NETNS, create BGP server socket in the NETNS | |
3092 | */ | |
3093 | if (vrf_is_mapped_on_netns(bgp->vrf_id)) { | |
3094 | ret = bgp_socket(bgp, bm->port, bm->address); | |
3095 | if (ret < 0) | |
3096 | return BGP_ERR_INVALID_VALUE; | |
3097 | return 0; | |
3098 | } | |
3099 | } | |
3100 | /* if BGP VRF instance requested or VRF lite backend | |
3101 | * if BGP non VRF instance, create it | |
3102 | * if not already done | |
3103 | */ | |
3104 | return bgp_check_main_socket(create, bgp); | |
3105 | } | |
3106 | ||
d62a17ae | 3107 | /* Called from VTY commands. */ |
3108 | int bgp_get(struct bgp **bgp_val, as_t *as, const char *name, | |
3109 | enum bgp_instance_type inst_type) | |
3110 | { | |
3111 | struct bgp *bgp; | |
e5619c28 | 3112 | struct vrf *vrf = NULL; |
d62a17ae | 3113 | |
3114 | /* Multiple instance check. */ | |
3115 | if (bgp_option_check(BGP_OPT_MULTIPLE_INSTANCE)) { | |
3116 | if (name) | |
3117 | bgp = bgp_lookup_by_name(name); | |
3118 | else | |
3119 | bgp = bgp_get_default(); | |
3120 | ||
3121 | /* Already exists. */ | |
3122 | if (bgp) { | |
3123 | if (bgp->as != *as) { | |
3124 | *as = bgp->as; | |
3125 | return BGP_ERR_INSTANCE_MISMATCH; | |
3126 | } | |
3127 | if (bgp->inst_type != inst_type) | |
3128 | return BGP_ERR_INSTANCE_MISMATCH; | |
3129 | *bgp_val = bgp; | |
3130 | return 0; | |
3131 | } | |
3132 | } else { | |
3133 | /* BGP instance name can not be specified for single instance. | |
3134 | */ | |
3135 | if (name) | |
3136 | return BGP_ERR_MULTIPLE_INSTANCE_NOT_SET; | |
3137 | ||
3138 | /* Get default BGP structure if exists. */ | |
3139 | bgp = bgp_get_default(); | |
3140 | ||
3141 | if (bgp) { | |
3142 | if (bgp->as != *as) { | |
3143 | *as = bgp->as; | |
3144 | return BGP_ERR_AS_MISMATCH; | |
3145 | } | |
3146 | *bgp_val = bgp; | |
3147 | return 0; | |
3148 | } | |
3149 | } | |
73d70fa6 | 3150 | |
d62a17ae | 3151 | bgp = bgp_create(as, name, inst_type); |
3152 | bgp_router_id_set(bgp, &bgp->router_id_zebra); | |
3153 | bgp_address_init(bgp); | |
db0e1937 | 3154 | bgp_tip_hash_init(bgp); |
d62a17ae | 3155 | bgp_scan_init(bgp); |
3156 | *bgp_val = bgp; | |
eb821189 | 3157 | |
d62a17ae | 3158 | bgp->t_rmap_def_originate_eval = NULL; |
e5cc509c | 3159 | |
d62a17ae | 3160 | /* If Default instance or VRF, link to the VRF structure, if present. */ |
3161 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT | |
3162 | || bgp->inst_type == BGP_INSTANCE_TYPE_VRF) { | |
d62a17ae | 3163 | vrf = bgp_vrf_lookup_by_instance_type(bgp); |
3164 | if (vrf) | |
3165 | bgp_vrf_link(bgp, vrf); | |
3166 | } | |
e5619c28 PG |
3167 | /* BGP server socket already processed if BGP instance |
3168 | * already part of the list | |
3169 | */ | |
3170 | bgp_handle_socket(bgp, vrf, VRF_UNKNOWN, true); | |
3171 | listnode_add(bm->bgp, bgp); | |
718e3744 | 3172 | |
d62a17ae | 3173 | if (IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) |
3174 | bgp_zebra_instance_register(bgp); | |
718e3744 | 3175 | |
718e3744 | 3176 | |
d62a17ae | 3177 | return 0; |
718e3744 | 3178 | } |
6b0655a2 | 3179 | |
d62a17ae | 3180 | /* |
3181 | * Make BGP instance "up". Applies only to VRFs (non-default) and | |
3182 | * implies the VRF has been learnt from Zebra. | |
3183 | */ | |
3184 | void bgp_instance_up(struct bgp *bgp) | |
718e3744 | 3185 | { |
d62a17ae | 3186 | struct peer *peer; |
3187 | struct listnode *node, *next; | |
718e3744 | 3188 | |
d62a17ae | 3189 | /* Register with zebra. */ |
3190 | bgp_zebra_instance_register(bgp); | |
718e3744 | 3191 | |
d62a17ae | 3192 | /* Kick off any peers that may have been configured. */ |
3193 | for (ALL_LIST_ELEMENTS(bgp->peer, node, next, peer)) { | |
3194 | if (!BGP_PEER_START_SUPPRESSED(peer)) | |
3195 | BGP_EVENT_ADD(peer, BGP_Start); | |
718e3744 | 3196 | } |
3197 | ||
d62a17ae | 3198 | /* Process any networks that have been configured. */ |
3199 | bgp_static_add(bgp); | |
3200 | } | |
3201 | ||
3202 | /* | |
3203 | * Make BGP instance "down". Applies only to VRFs (non-default) and | |
3204 | * implies the VRF has been deleted by Zebra. | |
3205 | */ | |
3206 | void bgp_instance_down(struct bgp *bgp) | |
3207 | { | |
3208 | struct peer *peer; | |
3209 | struct listnode *node; | |
3210 | struct listnode *next; | |
3211 | ||
3212 | /* Stop timers. */ | |
3213 | if (bgp->t_rmap_def_originate_eval) { | |
3214 | BGP_TIMER_OFF(bgp->t_rmap_def_originate_eval); | |
3215 | bgp_unlock(bgp); /* TODO - This timer is started with a lock - | |
3216 | why? */ | |
718e3744 | 3217 | } |
3218 | ||
d62a17ae | 3219 | /* Bring down peers, so corresponding routes are purged. */ |
3220 | for (ALL_LIST_ELEMENTS(bgp->peer, node, next, peer)) { | |
3221 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
3222 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3223 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN); | |
3224 | else | |
3225 | bgp_session_reset(peer); | |
3226 | } | |
718e3744 | 3227 | |
d62a17ae | 3228 | /* Purge network and redistributed routes. */ |
3229 | bgp_purge_static_redist_routes(bgp); | |
ee7ca6c0 | 3230 | |
3231 | /* Cleanup registered nexthops (flags) */ | |
3232 | bgp_cleanup_nexthops(bgp); | |
718e3744 | 3233 | } |
3234 | ||
d62a17ae | 3235 | /* Delete BGP instance. */ |
3236 | int bgp_delete(struct bgp *bgp) | |
3237 | { | |
3238 | struct peer *peer; | |
3239 | struct peer_group *group; | |
3240 | struct listnode *node, *next; | |
3241 | struct vrf *vrf; | |
3242 | afi_t afi; | |
3243 | int i; | |
3244 | ||
3245 | THREAD_OFF(bgp->t_startup); | |
3246 | ||
3247 | if (BGP_DEBUG(zebra, ZEBRA)) { | |
3248 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
3249 | zlog_debug("Deleting Default VRF"); | |
3250 | else | |
3251 | zlog_debug("Deleting %s %s", | |
3252 | (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) | |
3253 | ? "VRF" | |
3254 | : "VIEW", | |
3255 | bgp->name); | |
718e3744 | 3256 | } |
3257 | ||
10ebe1ab MK |
3258 | /* unmap from RT list */ |
3259 | bgp_evpn_vrf_delete(bgp); | |
3260 | ||
d62a17ae | 3261 | /* Stop timers. */ |
3262 | if (bgp->t_rmap_def_originate_eval) { | |
3263 | BGP_TIMER_OFF(bgp->t_rmap_def_originate_eval); | |
3264 | bgp_unlock(bgp); /* TODO - This timer is started with a lock - | |
3265 | why? */ | |
718e3744 | 3266 | } |
3267 | ||
d62a17ae | 3268 | /* Inform peers we're going down. */ |
3269 | for (ALL_LIST_ELEMENTS(bgp->peer, node, next, peer)) { | |
3270 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
3271 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3272 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN); | |
718e3744 | 3273 | } |
3274 | ||
d62a17ae | 3275 | /* Delete static routes (networks). */ |
3276 | bgp_static_delete(bgp); | |
6b0655a2 | 3277 | |
d62a17ae | 3278 | /* Unset redistribution. */ |
3279 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
3280 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
3281 | if (i != ZEBRA_ROUTE_BGP) | |
3282 | bgp_redistribute_unset(bgp, afi, i, 0); | |
718e3744 | 3283 | |
d62a17ae | 3284 | /* Free peers and peer-groups. */ |
3285 | for (ALL_LIST_ELEMENTS(bgp->group, node, next, group)) | |
3286 | peer_group_delete(group); | |
718e3744 | 3287 | |
d62a17ae | 3288 | for (ALL_LIST_ELEMENTS(bgp->peer, node, next, peer)) |
3289 | peer_delete(peer); | |
3290 | ||
3291 | if (bgp->peer_self) { | |
3292 | peer_delete(bgp->peer_self); | |
3293 | bgp->peer_self = NULL; | |
718e3744 | 3294 | } |
3295 | ||
d62a17ae | 3296 | update_bgp_group_free(bgp); |
718e3744 | 3297 | |
d62a17ae | 3298 | /* TODO - Other memory may need to be freed - e.g., NHT */ |
3299 | ||
3300 | #if ENABLE_BGP_VNC | |
3301 | rfapi_delete(bgp); | |
3302 | #endif | |
3303 | bgp_cleanup_routes(bgp); | |
718e3744 | 3304 | |
301ad80a PG |
3305 | for (afi = 0; afi < AFI_MAX; ++afi) { |
3306 | if (!bgp->vpn_policy[afi].import_redirect_rtlist) | |
3307 | continue; | |
3308 | ecommunity_free( | |
3309 | &bgp->vpn_policy[afi] | |
3310 | .import_redirect_rtlist); | |
3311 | bgp->vpn_policy[afi].import_redirect_rtlist = NULL; | |
3312 | } | |
d62a17ae | 3313 | /* Remove visibility via the master list - there may however still be |
3314 | * routes to be processed still referencing the struct bgp. | |
3315 | */ | |
3316 | listnode_delete(bm->bgp, bgp); | |
718e3744 | 3317 | |
d62a17ae | 3318 | /* Deregister from Zebra, if needed */ |
3319 | if (IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
3320 | bgp_zebra_instance_deregister(bgp); | |
718e3744 | 3321 | |
d62a17ae | 3322 | /* Free interfaces in this instance. */ |
3323 | bgp_if_finish(bgp); | |
718e3744 | 3324 | |
d62a17ae | 3325 | vrf = bgp_vrf_lookup_by_instance_type(bgp); |
e5619c28 | 3326 | bgp_handle_socket(bgp, vrf, VRF_UNKNOWN, false); |
d62a17ae | 3327 | if (vrf) |
3328 | bgp_vrf_unlink(bgp, vrf); | |
718e3744 | 3329 | |
d62a17ae | 3330 | thread_master_free_unused(bm->master); |
3331 | bgp_unlock(bgp); /* initial reference */ | |
718e3744 | 3332 | |
d62a17ae | 3333 | return 0; |
718e3744 | 3334 | } |
6b0655a2 | 3335 | |
92375c91 | 3336 | void bgp_free(struct bgp *bgp) |
d93f7ffc | 3337 | { |
d62a17ae | 3338 | afi_t afi; |
3339 | safi_t safi; | |
3340 | struct bgp_table *table; | |
3341 | struct bgp_node *rn; | |
f8265580 | 3342 | struct bgp_rmap *rmap; |
d93f7ffc | 3343 | |
d62a17ae | 3344 | QOBJ_UNREG(bgp); |
d93f7ffc | 3345 | |
affe9e99 DS |
3346 | list_delete_and_null(&bgp->group); |
3347 | list_delete_and_null(&bgp->peer); | |
966f821c | 3348 | |
d62a17ae | 3349 | if (bgp->peerhash) { |
3350 | hash_free(bgp->peerhash); | |
3351 | bgp->peerhash = NULL; | |
3352 | } | |
718e3744 | 3353 | |
05c7a1cc QY |
3354 | FOREACH_AFI_SAFI (afi, safi) { |
3355 | /* Special handling for 2-level routing tables. */ | |
3356 | if (safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP | |
3357 | || safi == SAFI_EVPN) { | |
3358 | for (rn = bgp_table_top(bgp->rib[afi][safi]); rn; | |
3359 | rn = bgp_route_next(rn)) { | |
3360 | table = (struct bgp_table *)rn->info; | |
3361 | bgp_table_finish(&table); | |
d62a17ae | 3362 | } |
d62a17ae | 3363 | } |
05c7a1cc QY |
3364 | if (bgp->route[afi][safi]) |
3365 | bgp_table_finish(&bgp->route[afi][safi]); | |
3366 | if (bgp->aggregate[afi][safi]) | |
3367 | bgp_table_finish(&bgp->aggregate[afi][safi]); | |
3368 | if (bgp->rib[afi][safi]) | |
3369 | bgp_table_finish(&bgp->rib[afi][safi]); | |
3370 | rmap = &bgp->table_map[afi][safi]; | |
3371 | if (rmap->name) | |
3372 | XFREE(MTYPE_ROUTE_MAP_NAME, rmap->name); | |
3373 | } | |
718e3744 | 3374 | |
d62a17ae | 3375 | bgp_scan_finish(bgp); |
3376 | bgp_address_destroy(bgp); | |
db0e1937 | 3377 | bgp_tip_hash_destroy(bgp); |
966f821c | 3378 | |
d62a17ae | 3379 | bgp_evpn_cleanup(bgp); |
718e3744 | 3380 | |
d62a17ae | 3381 | if (bgp->name) |
3382 | XFREE(MTYPE_BGP, bgp->name); | |
3572fb26 PZ |
3383 | if (bgp->name_pretty) |
3384 | XFREE(MTYPE_BGP, bgp->name_pretty); | |
966f821c | 3385 | |
d62a17ae | 3386 | XFREE(MTYPE_BGP, bgp); |
718e3744 | 3387 | } |
3388 | ||
d62a17ae | 3389 | struct peer *peer_lookup_by_conf_if(struct bgp *bgp, const char *conf_if) |
718e3744 | 3390 | { |
d62a17ae | 3391 | struct peer *peer; |
3392 | struct listnode *node, *nnode; | |
966f821c | 3393 | |
d62a17ae | 3394 | if (!conf_if) |
3395 | return NULL; | |
6b0655a2 | 3396 | |
d62a17ae | 3397 | if (bgp != NULL) { |
3398 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
3399 | if (peer->conf_if && !strcmp(peer->conf_if, conf_if) | |
3400 | && !CHECK_FLAG(peer->sflags, | |
3401 | PEER_STATUS_ACCEPT_PEER)) | |
3402 | return peer; | |
3403 | } else if (bm->bgp != NULL) { | |
3404 | struct listnode *bgpnode, *nbgpnode; | |
3405 | ||
3406 | for (ALL_LIST_ELEMENTS(bm->bgp, bgpnode, nbgpnode, bgp)) | |
3407 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
3408 | if (peer->conf_if | |
3409 | && !strcmp(peer->conf_if, conf_if) | |
3410 | && !CHECK_FLAG(peer->sflags, | |
3411 | PEER_STATUS_ACCEPT_PEER)) | |
3412 | return peer; | |
3413 | } | |
3414 | return NULL; | |
718e3744 | 3415 | } |
3416 | ||
d62a17ae | 3417 | struct peer *peer_lookup_by_hostname(struct bgp *bgp, const char *hostname) |
718e3744 | 3418 | { |
d62a17ae | 3419 | struct peer *peer; |
3420 | struct listnode *node, *nnode; | |
6b0655a2 | 3421 | |
d62a17ae | 3422 | if (!hostname) |
3423 | return NULL; | |
6b0655a2 | 3424 | |
d62a17ae | 3425 | if (bgp != NULL) { |
3426 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
3427 | if (peer->hostname && !strcmp(peer->hostname, hostname) | |
3428 | && !CHECK_FLAG(peer->sflags, | |
3429 | PEER_STATUS_ACCEPT_PEER)) | |
3430 | return peer; | |
3431 | } else if (bm->bgp != NULL) { | |
3432 | struct listnode *bgpnode, *nbgpnode; | |
3433 | ||
3434 | for (ALL_LIST_ELEMENTS(bm->bgp, bgpnode, nbgpnode, bgp)) | |
3435 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
3436 | if (peer->hostname | |
3437 | && !strcmp(peer->hostname, hostname) | |
3438 | && !CHECK_FLAG(peer->sflags, | |
3439 | PEER_STATUS_ACCEPT_PEER)) | |
3440 | return peer; | |
3441 | } | |
3442 | return NULL; | |
3443 | } | |
3444 | ||
3445 | struct peer *peer_lookup(struct bgp *bgp, union sockunion *su) | |
3446 | { | |
3447 | struct peer *peer = NULL; | |
3448 | struct peer tmp_peer; | |
3449 | ||
3450 | memset(&tmp_peer, 0, sizeof(struct peer)); | |
3451 | ||
3452 | /* | |
3453 | * We do not want to find the doppelganger peer so search for the peer | |
3454 | * in | |
3455 | * the hash that has PEER_FLAG_CONFIG_NODE | |
3456 | */ | |
3457 | SET_FLAG(tmp_peer.flags, PEER_FLAG_CONFIG_NODE); | |
3458 | ||
3459 | tmp_peer.su = *su; | |
3460 | ||
3461 | if (bgp != NULL) { | |
3462 | peer = hash_lookup(bgp->peerhash, &tmp_peer); | |
3463 | } else if (bm->bgp != NULL) { | |
3464 | struct listnode *bgpnode, *nbgpnode; | |
3465 | ||
3466 | for (ALL_LIST_ELEMENTS(bm->bgp, bgpnode, nbgpnode, bgp)) { | |
61cf4b37 PG |
3467 | /* Skip VRFs Lite only, this function will not be |
3468 | * invoked without an instance | |
d62a17ae | 3469 | * when examining VRFs. |
3470 | */ | |
996c9314 LB |
3471 | if ((bgp->inst_type == BGP_INSTANCE_TYPE_VRF) |
3472 | && !vrf_is_mapped_on_netns(bgp->vrf_id)) | |
d62a17ae | 3473 | continue; |
3474 | ||
3475 | peer = hash_lookup(bgp->peerhash, &tmp_peer); | |
3476 | ||
3477 | if (peer) | |
3478 | break; | |
3479 | } | |
3480 | } | |
3481 | ||
3482 | return peer; | |
3483 | } | |
3484 | ||
3485 | struct peer *peer_create_bind_dynamic_neighbor(struct bgp *bgp, | |
3486 | union sockunion *su, | |
3487 | struct peer_group *group) | |
3488 | { | |
3489 | struct peer *peer; | |
3490 | afi_t afi; | |
3491 | safi_t safi; | |
3492 | ||
3493 | /* Create peer first; we've already checked group config is valid. */ | |
3494 | peer = peer_create(su, NULL, bgp, bgp->as, group->conf->as, | |
3495 | group->conf->as_type, 0, 0, group); | |
3496 | if (!peer) | |
3497 | return NULL; | |
3498 | ||
3499 | /* Link to group */ | |
3500 | peer = peer_lock(peer); | |
3501 | listnode_add(group->peer, peer); | |
3502 | ||
3503 | peer_group2peer_config_copy(group, peer); | |
3504 | ||
3505 | /* | |
3506 | * Bind peer for all AFs configured for the group. We don't call | |
3507 | * peer_group_bind as that is sub-optimal and does some stuff we don't | |
3508 | * want. | |
3509 | */ | |
05c7a1cc QY |
3510 | FOREACH_AFI_SAFI (afi, safi) { |
3511 | if (!group->conf->afc[afi][safi]) | |
3512 | continue; | |
3513 | peer->afc[afi][safi] = 1; | |
d62a17ae | 3514 | |
05c7a1cc QY |
3515 | if (!peer_af_find(peer, afi, safi)) |
3516 | peer_af_create(peer, afi, safi); | |
d62a17ae | 3517 | |
05c7a1cc QY |
3518 | peer_group2peer_config_copy_af(group, peer, afi, safi); |
3519 | } | |
d62a17ae | 3520 | |
3521 | /* Mark as dynamic, but also as a "config node" for other things to | |
3522 | * work. */ | |
3523 | SET_FLAG(peer->flags, PEER_FLAG_DYNAMIC_NEIGHBOR); | |
3524 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); | |
3525 | ||
3526 | return peer; | |
3527 | } | |
3528 | ||
3529 | struct prefix * | |
3530 | peer_group_lookup_dynamic_neighbor_range(struct peer_group *group, | |
3531 | struct prefix *prefix) | |
3532 | { | |
3533 | struct listnode *node, *nnode; | |
3534 | struct prefix *range; | |
3535 | afi_t afi; | |
3536 | ||
3537 | afi = family2afi(prefix->family); | |
3538 | ||
3539 | if (group->listen_range[afi]) | |
3540 | for (ALL_LIST_ELEMENTS(group->listen_range[afi], node, nnode, | |
3541 | range)) | |
3542 | if (prefix_match(range, prefix)) | |
3543 | return range; | |
3544 | ||
3545 | return NULL; | |
3546 | } | |
3547 | ||
3548 | struct peer_group * | |
3549 | peer_group_lookup_dynamic_neighbor(struct bgp *bgp, struct prefix *prefix, | |
3550 | struct prefix **listen_range) | |
3551 | { | |
3552 | struct prefix *range = NULL; | |
3553 | struct peer_group *group = NULL; | |
3554 | struct listnode *node, *nnode; | |
3555 | ||
3556 | *listen_range = NULL; | |
3557 | if (bgp != NULL) { | |
3558 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) | |
3559 | if ((range = peer_group_lookup_dynamic_neighbor_range( | |
3560 | group, prefix))) | |
3561 | break; | |
3562 | } else if (bm->bgp != NULL) { | |
3563 | struct listnode *bgpnode, *nbgpnode; | |
3564 | ||
3565 | for (ALL_LIST_ELEMENTS(bm->bgp, bgpnode, nbgpnode, bgp)) | |
3566 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) | |
3567 | if ((range = peer_group_lookup_dynamic_neighbor_range( | |
3568 | group, prefix))) | |
3569 | goto found_range; | |
3570 | } | |
3571 | ||
3572 | found_range: | |
3573 | *listen_range = range; | |
3574 | return (group && range) ? group : NULL; | |
3575 | } | |
3576 | ||
3577 | struct peer *peer_lookup_dynamic_neighbor(struct bgp *bgp, union sockunion *su) | |
3578 | { | |
3579 | struct peer_group *group; | |
3580 | struct bgp *gbgp; | |
3581 | struct peer *peer; | |
3582 | struct prefix prefix; | |
3583 | struct prefix *listen_range; | |
3584 | int dncount; | |
3585 | char buf[PREFIX2STR_BUFFER]; | |
3586 | char buf1[PREFIX2STR_BUFFER]; | |
3587 | ||
3588 | sockunion2hostprefix(su, &prefix); | |
3589 | ||
3590 | /* See if incoming connection matches a configured listen range. */ | |
3591 | group = peer_group_lookup_dynamic_neighbor(bgp, &prefix, &listen_range); | |
3592 | ||
3593 | if (!group) | |
3594 | return NULL; | |
3595 | ||
3596 | ||
3597 | gbgp = group->bgp; | |
3598 | ||
3599 | if (!gbgp) | |
3600 | return NULL; | |
3601 | ||
3602 | prefix2str(&prefix, buf, sizeof(buf)); | |
3603 | prefix2str(listen_range, buf1, sizeof(buf1)); | |
3604 | ||
3605 | if (bgp_debug_neighbor_events(NULL)) | |
3606 | zlog_debug( | |
3607 | "Dynamic Neighbor %s matches group %s listen range %s", | |
3608 | buf, group->name, buf1); | |
3609 | ||
3610 | /* Are we within the listen limit? */ | |
3611 | dncount = gbgp->dynamic_neighbors_count; | |
3612 | ||
3613 | if (dncount >= gbgp->dynamic_neighbors_limit) { | |
3614 | if (bgp_debug_neighbor_events(NULL)) | |
3615 | zlog_debug("Dynamic Neighbor %s rejected - at limit %d", | |
3616 | inet_sutop(su, buf), | |
3617 | gbgp->dynamic_neighbors_limit); | |
3618 | return NULL; | |
3619 | } | |
3620 | ||
3621 | /* Ensure group is not disabled. */ | |
3622 | if (CHECK_FLAG(group->conf->flags, PEER_FLAG_SHUTDOWN)) { | |
3623 | if (bgp_debug_neighbor_events(NULL)) | |
3624 | zlog_debug( | |
3625 | "Dynamic Neighbor %s rejected - group %s disabled", | |
3626 | buf, group->name); | |
3627 | return NULL; | |
3628 | } | |
3629 | ||
3630 | /* Check that at least one AF is activated for the group. */ | |
3631 | if (!peer_group_af_configured(group)) { | |
3632 | if (bgp_debug_neighbor_events(NULL)) | |
3633 | zlog_debug( | |
3634 | "Dynamic Neighbor %s rejected - no AF activated for group %s", | |
3635 | buf, group->name); | |
3636 | return NULL; | |
3637 | } | |
3638 | ||
3639 | /* Create dynamic peer and bind to associated group. */ | |
3640 | peer = peer_create_bind_dynamic_neighbor(gbgp, su, group); | |
3641 | assert(peer); | |
3642 | ||
3643 | gbgp->dynamic_neighbors_count = ++dncount; | |
3644 | ||
3645 | if (bgp_debug_neighbor_events(peer)) | |
3646 | zlog_debug("%s Dynamic Neighbor added, group %s count %d", | |
3647 | peer->host, group->name, dncount); | |
3648 | ||
3649 | return peer; | |
3650 | } | |
3651 | ||
3652 | void peer_drop_dynamic_neighbor(struct peer *peer) | |
3653 | { | |
3654 | int dncount = -1; | |
3655 | if (peer->group && peer->group->bgp) { | |
3656 | dncount = peer->group->bgp->dynamic_neighbors_count; | |
3657 | if (dncount) | |
3658 | peer->group->bgp->dynamic_neighbors_count = --dncount; | |
3659 | } | |
3660 | if (bgp_debug_neighbor_events(peer)) | |
3661 | zlog_debug("%s dropped from group %s, count %d", peer->host, | |
3662 | peer->group->name, dncount); | |
3663 | } | |
3664 | ||
3665 | ||
3666 | /* If peer is configured at least one address family return 1. */ | |
3667 | int peer_active(struct peer *peer) | |
3668 | { | |
3669 | if (BGP_PEER_SU_UNSPEC(peer)) | |
3670 | return 0; | |
3671 | if (peer->afc[AFI_IP][SAFI_UNICAST] || peer->afc[AFI_IP][SAFI_MULTICAST] | |
3672 | || peer->afc[AFI_IP][SAFI_LABELED_UNICAST] | |
3673 | || peer->afc[AFI_IP][SAFI_MPLS_VPN] || peer->afc[AFI_IP][SAFI_ENCAP] | |
7c40bf39 | 3674 | || peer->afc[AFI_IP][SAFI_FLOWSPEC] |
d62a17ae | 3675 | || peer->afc[AFI_IP6][SAFI_UNICAST] |
3676 | || peer->afc[AFI_IP6][SAFI_MULTICAST] | |
3677 | || peer->afc[AFI_IP6][SAFI_LABELED_UNICAST] | |
3678 | || peer->afc[AFI_IP6][SAFI_MPLS_VPN] | |
3679 | || peer->afc[AFI_IP6][SAFI_ENCAP] | |
7c40bf39 | 3680 | || peer->afc[AFI_IP6][SAFI_FLOWSPEC] |
d62a17ae | 3681 | || peer->afc[AFI_L2VPN][SAFI_EVPN]) |
3682 | return 1; | |
3683 | return 0; | |
3684 | } | |
3685 | ||
3686 | /* If peer is negotiated at least one address family return 1. */ | |
3687 | int peer_active_nego(struct peer *peer) | |
3688 | { | |
3689 | if (peer->afc_nego[AFI_IP][SAFI_UNICAST] | |
3690 | || peer->afc_nego[AFI_IP][SAFI_MULTICAST] | |
3691 | || peer->afc_nego[AFI_IP][SAFI_LABELED_UNICAST] | |
3692 | || peer->afc_nego[AFI_IP][SAFI_MPLS_VPN] | |
3693 | || peer->afc_nego[AFI_IP][SAFI_ENCAP] | |
7c40bf39 | 3694 | || peer->afc_nego[AFI_IP][SAFI_FLOWSPEC] |
d62a17ae | 3695 | || peer->afc_nego[AFI_IP6][SAFI_UNICAST] |
3696 | || peer->afc_nego[AFI_IP6][SAFI_MULTICAST] | |
3697 | || peer->afc_nego[AFI_IP6][SAFI_LABELED_UNICAST] | |
3698 | || peer->afc_nego[AFI_IP6][SAFI_MPLS_VPN] | |
3699 | || peer->afc_nego[AFI_IP6][SAFI_ENCAP] | |
7c40bf39 | 3700 | || peer->afc_nego[AFI_IP6][SAFI_FLOWSPEC] |
d62a17ae | 3701 | || peer->afc_nego[AFI_L2VPN][SAFI_EVPN]) |
3702 | return 1; | |
3703 | return 0; | |
3704 | } | |
3705 | ||
3706 | /* peer_flag_change_type. */ | |
3707 | enum peer_change_type { | |
3708 | peer_change_none, | |
3709 | peer_change_reset, | |
3710 | peer_change_reset_in, | |
3711 | peer_change_reset_out, | |
3712 | }; | |
3713 | ||
3714 | static void peer_change_action(struct peer *peer, afi_t afi, safi_t safi, | |
3715 | enum peer_change_type type) | |
3716 | { | |
3717 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
3718 | return; | |
3719 | ||
3720 | if (peer->status != Established) | |
3721 | return; | |
3722 | ||
3723 | if (type == peer_change_reset) { | |
3724 | /* If we're resetting session, we've to delete both peer struct | |
3725 | */ | |
3726 | if ((peer->doppelganger) | |
3727 | && (peer->doppelganger->status != Deleted) | |
3728 | && (!CHECK_FLAG(peer->doppelganger->flags, | |
3729 | PEER_FLAG_CONFIG_NODE))) | |
3730 | peer_delete(peer->doppelganger); | |
3731 | ||
3732 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3733 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
3734 | } else if (type == peer_change_reset_in) { | |
3735 | if (CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_OLD_RCV) | |
3736 | || CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_NEW_RCV)) | |
3737 | bgp_route_refresh_send(peer, afi, safi, 0, 0, 0); | |
3738 | else { | |
3739 | if ((peer->doppelganger) | |
3740 | && (peer->doppelganger->status != Deleted) | |
3741 | && (!CHECK_FLAG(peer->doppelganger->flags, | |
3742 | PEER_FLAG_CONFIG_NODE))) | |
3743 | peer_delete(peer->doppelganger); | |
3744 | ||
3745 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3746 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
3747 | } | |
3748 | } else if (type == peer_change_reset_out) { | |
3749 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
3750 | bgp_announce_route(peer, afi, safi); | |
3751 | } | |
3752 | } | |
3753 | ||
3754 | struct peer_flag_action { | |
3755 | /* Peer's flag. */ | |
d7c0a89a | 3756 | uint32_t flag; |
d62a17ae | 3757 | |
3758 | /* This flag can be set for peer-group member. */ | |
d7c0a89a | 3759 | uint8_t not_for_member; |
d62a17ae | 3760 | |
3761 | /* Action when the flag is changed. */ | |
3762 | enum peer_change_type type; | |
3763 | ||
3764 | /* Peer down cause */ | |
d7c0a89a | 3765 | uint8_t peer_down; |
d62a17ae | 3766 | }; |
3767 | ||
3768 | static const struct peer_flag_action peer_flag_action_list[] = { | |
3769 | {PEER_FLAG_PASSIVE, 0, peer_change_reset}, | |
3770 | {PEER_FLAG_SHUTDOWN, 0, peer_change_reset}, | |
3771 | {PEER_FLAG_DONT_CAPABILITY, 0, peer_change_none}, | |
3772 | {PEER_FLAG_OVERRIDE_CAPABILITY, 0, peer_change_none}, | |
3773 | {PEER_FLAG_STRICT_CAP_MATCH, 0, peer_change_none}, | |
3774 | {PEER_FLAG_DYNAMIC_CAPABILITY, 0, peer_change_reset}, | |
3775 | {PEER_FLAG_DISABLE_CONNECTED_CHECK, 0, peer_change_reset}, | |
3776 | {PEER_FLAG_CAPABILITY_ENHE, 0, peer_change_reset}, | |
3777 | {0, 0, 0}}; | |
3778 | ||
3779 | static const struct peer_flag_action peer_af_flag_action_list[] = { | |
3780 | {PEER_FLAG_SEND_COMMUNITY, 1, peer_change_reset_out}, | |
3781 | {PEER_FLAG_SEND_EXT_COMMUNITY, 1, peer_change_reset_out}, | |
3782 | {PEER_FLAG_SEND_LARGE_COMMUNITY, 1, peer_change_reset_out}, | |
3783 | {PEER_FLAG_NEXTHOP_SELF, 1, peer_change_reset_out}, | |
3784 | {PEER_FLAG_REFLECTOR_CLIENT, 1, peer_change_reset}, | |
3785 | {PEER_FLAG_RSERVER_CLIENT, 1, peer_change_reset}, | |
3786 | {PEER_FLAG_SOFT_RECONFIG, 0, peer_change_reset_in}, | |
3787 | {PEER_FLAG_AS_PATH_UNCHANGED, 1, peer_change_reset_out}, | |
3788 | {PEER_FLAG_NEXTHOP_UNCHANGED, 1, peer_change_reset_out}, | |
3789 | {PEER_FLAG_MED_UNCHANGED, 1, peer_change_reset_out}, | |
3790 | // PEER_FLAG_DEFAULT_ORIGINATE | |
3791 | {PEER_FLAG_REMOVE_PRIVATE_AS, 1, peer_change_reset_out}, | |
3792 | {PEER_FLAG_ALLOWAS_IN, 0, peer_change_reset_in}, | |
3793 | {PEER_FLAG_ALLOWAS_IN_ORIGIN, 0, peer_change_reset_in}, | |
3794 | {PEER_FLAG_ORF_PREFIX_SM, 1, peer_change_reset}, | |
3795 | {PEER_FLAG_ORF_PREFIX_RM, 1, peer_change_reset}, | |
3796 | // PEER_FLAG_MAX_PREFIX | |
3797 | // PEER_FLAG_MAX_PREFIX_WARNING | |
3798 | {PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED, 0, peer_change_reset_out}, | |
3799 | {PEER_FLAG_FORCE_NEXTHOP_SELF, 1, peer_change_reset_out}, | |
3800 | {PEER_FLAG_REMOVE_PRIVATE_AS_ALL, 1, peer_change_reset_out}, | |
3801 | {PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE, 1, peer_change_reset_out}, | |
3802 | {PEER_FLAG_AS_OVERRIDE, 1, peer_change_reset_out}, | |
3803 | {PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE, 1, peer_change_reset_out}, | |
3804 | {PEER_FLAG_ADDPATH_TX_ALL_PATHS, 1, peer_change_reset}, | |
3805 | {PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS, 1, peer_change_reset}, | |
3806 | {PEER_FLAG_WEIGHT, 0, peer_change_reset_in}, | |
3807 | {0, 0, 0}}; | |
3808 | ||
3809 | /* Proper action set. */ | |
3810 | static int peer_flag_action_set(const struct peer_flag_action *action_list, | |
3811 | int size, struct peer_flag_action *action, | |
d7c0a89a | 3812 | uint32_t flag) |
d62a17ae | 3813 | { |
3814 | int i; | |
3815 | int found = 0; | |
3816 | int reset_in = 0; | |
3817 | int reset_out = 0; | |
3818 | const struct peer_flag_action *match = NULL; | |
3819 | ||
3820 | /* Check peer's frag action. */ | |
3821 | for (i = 0; i < size; i++) { | |
3822 | match = &action_list[i]; | |
3823 | ||
3824 | if (match->flag == 0) | |
3825 | break; | |
3826 | ||
3827 | if (match->flag & flag) { | |
3828 | found = 1; | |
3829 | ||
3830 | if (match->type == peer_change_reset_in) | |
3831 | reset_in = 1; | |
3832 | if (match->type == peer_change_reset_out) | |
3833 | reset_out = 1; | |
3834 | if (match->type == peer_change_reset) { | |
3835 | reset_in = 1; | |
3836 | reset_out = 1; | |
3837 | } | |
3838 | if (match->not_for_member) | |
3839 | action->not_for_member = 1; | |
3840 | } | |
3841 | } | |
3842 | ||
3843 | /* Set peer clear type. */ | |
3844 | if (reset_in && reset_out) | |
3845 | action->type = peer_change_reset; | |
3846 | else if (reset_in) | |
3847 | action->type = peer_change_reset_in; | |
3848 | else if (reset_out) | |
3849 | action->type = peer_change_reset_out; | |
3850 | else | |
3851 | action->type = peer_change_none; | |
3852 | ||
3853 | return found; | |
3854 | } | |
3855 | ||
d7c0a89a | 3856 | static void peer_flag_modify_action(struct peer *peer, uint32_t flag) |
d62a17ae | 3857 | { |
3858 | if (flag == PEER_FLAG_SHUTDOWN) { | |
3859 | if (CHECK_FLAG(peer->flags, flag)) { | |
3860 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT)) | |
3861 | peer_nsf_stop(peer); | |
3862 | ||
3863 | UNSET_FLAG(peer->sflags, PEER_STATUS_PREFIX_OVERFLOW); | |
3864 | if (peer->t_pmax_restart) { | |
3865 | BGP_TIMER_OFF(peer->t_pmax_restart); | |
3866 | if (bgp_debug_neighbor_events(peer)) | |
3867 | zlog_debug( | |
3868 | "%s Maximum-prefix restart timer canceled", | |
3869 | peer->host); | |
3870 | } | |
3871 | ||
3872 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT)) | |
3873 | peer_nsf_stop(peer); | |
3874 | ||
3875 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
3876 | char *msg = peer->tx_shutdown_message; | |
3877 | size_t msglen; | |
3878 | ||
3879 | if (!msg && peer_group_active(peer)) | |
3880 | msg = peer->group->conf | |
3881 | ->tx_shutdown_message; | |
3882 | msglen = msg ? strlen(msg) : 0; | |
3883 | if (msglen > 128) | |
3884 | msglen = 128; | |
3885 | ||
3886 | if (msglen) { | |
d7c0a89a | 3887 | uint8_t msgbuf[129]; |
d62a17ae | 3888 | |
3889 | msgbuf[0] = msglen; | |
3890 | memcpy(msgbuf + 1, msg, msglen); | |
3891 | ||
3892 | bgp_notify_send_with_data( | |
3893 | peer, BGP_NOTIFY_CEASE, | |
3894 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN, | |
3895 | msgbuf, msglen + 1); | |
3896 | } else | |
3897 | bgp_notify_send( | |
3898 | peer, BGP_NOTIFY_CEASE, | |
3899 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN); | |
3900 | } else | |
3901 | bgp_session_reset(peer); | |
3902 | } else { | |
3903 | peer->v_start = BGP_INIT_START_TIMER; | |
3904 | BGP_EVENT_ADD(peer, BGP_Stop); | |
3905 | } | |
3906 | } else if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
3907 | if (flag == PEER_FLAG_DYNAMIC_CAPABILITY) | |
3908 | peer->last_reset = PEER_DOWN_CAPABILITY_CHANGE; | |
3909 | else if (flag == PEER_FLAG_PASSIVE) | |
3910 | peer->last_reset = PEER_DOWN_PASSIVE_CHANGE; | |
3911 | else if (flag == PEER_FLAG_DISABLE_CONNECTED_CHECK) | |
3912 | peer->last_reset = PEER_DOWN_MULTIHOP_CHANGE; | |
3913 | ||
3914 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3915 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
3916 | } else | |
3917 | bgp_session_reset(peer); | |
3918 | } | |
3919 | ||
3920 | /* Change specified peer flag. */ | |
d7c0a89a | 3921 | static int peer_flag_modify(struct peer *peer, uint32_t flag, int set) |
d62a17ae | 3922 | { |
3923 | int found; | |
3924 | int size; | |
3925 | struct peer_group *group; | |
3926 | struct peer *tmp_peer; | |
3927 | struct listnode *node, *nnode; | |
3928 | struct peer_flag_action action; | |
3929 | ||
3930 | memset(&action, 0, sizeof(struct peer_flag_action)); | |
3931 | size = sizeof peer_flag_action_list / sizeof(struct peer_flag_action); | |
3932 | ||
3933 | found = peer_flag_action_set(peer_flag_action_list, size, &action, | |
3934 | flag); | |
3935 | ||
3936 | /* No flag action is found. */ | |
3937 | if (!found) | |
3938 | return BGP_ERR_INVALID_FLAG; | |
3939 | ||
3940 | /* When unset the peer-group member's flag we have to check | |
3941 | peer-group configuration. */ | |
3942 | if (!set && peer_group_active(peer)) | |
3943 | if (CHECK_FLAG(peer->group->conf->flags, flag)) { | |
3944 | if (flag == PEER_FLAG_SHUTDOWN) | |
3945 | return BGP_ERR_PEER_GROUP_SHUTDOWN; | |
3946 | } | |
3947 | ||
3948 | /* Flag conflict check. */ | |
3949 | if (set && CHECK_FLAG(peer->flags | flag, PEER_FLAG_STRICT_CAP_MATCH) | |
3950 | && CHECK_FLAG(peer->flags | flag, PEER_FLAG_OVERRIDE_CAPABILITY)) | |
3951 | return BGP_ERR_PEER_FLAG_CONFLICT; | |
3952 | ||
3953 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
3954 | if (set && CHECK_FLAG(peer->flags, flag) == flag) | |
3955 | return 0; | |
3956 | if (!set && !CHECK_FLAG(peer->flags, flag)) | |
3957 | return 0; | |
3958 | } | |
3959 | ||
3960 | if (set) | |
3961 | SET_FLAG(peer->flags, flag); | |
3962 | else | |
3963 | UNSET_FLAG(peer->flags, flag); | |
3964 | ||
3965 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
3966 | if (action.type == peer_change_reset) | |
3967 | peer_flag_modify_action(peer, flag); | |
3968 | ||
3969 | return 0; | |
3970 | } | |
3971 | ||
3972 | /* peer-group member updates. */ | |
3973 | group = peer->group; | |
3974 | ||
3975 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, tmp_peer)) { | |
3976 | ||
3977 | if (set && CHECK_FLAG(tmp_peer->flags, flag) == flag) | |
3978 | continue; | |
3979 | ||
3980 | if (!set && !CHECK_FLAG(tmp_peer->flags, flag)) | |
3981 | continue; | |
3982 | ||
3983 | if (set) | |
3984 | SET_FLAG(tmp_peer->flags, flag); | |
3985 | else | |
3986 | UNSET_FLAG(tmp_peer->flags, flag); | |
3987 | ||
3988 | if (action.type == peer_change_reset) | |
3989 | peer_flag_modify_action(tmp_peer, flag); | |
3990 | } | |
3991 | return 0; | |
3992 | } | |
3993 | ||
d7c0a89a | 3994 | int peer_flag_set(struct peer *peer, uint32_t flag) |
d62a17ae | 3995 | { |
3996 | return peer_flag_modify(peer, flag, 1); | |
3997 | } | |
3998 | ||
d7c0a89a | 3999 | int peer_flag_unset(struct peer *peer, uint32_t flag) |
d62a17ae | 4000 | { |
4001 | return peer_flag_modify(peer, flag, 0); | |
4002 | } | |
4003 | ||
4004 | static int peer_af_flag_modify(struct peer *peer, afi_t afi, safi_t safi, | |
d7c0a89a | 4005 | uint32_t flag, int set) |
d62a17ae | 4006 | { |
4007 | int found; | |
4008 | int size; | |
4009 | struct listnode *node, *nnode; | |
4010 | struct peer_group *group; | |
4011 | struct peer_flag_action action; | |
4012 | struct peer *tmp_peer; | |
4013 | struct bgp *bgp; | |
4014 | int addpath_tx_used; | |
4015 | ||
4016 | memset(&action, 0, sizeof(struct peer_flag_action)); | |
4017 | size = sizeof peer_af_flag_action_list | |
4018 | / sizeof(struct peer_flag_action); | |
4019 | ||
4020 | found = peer_flag_action_set(peer_af_flag_action_list, size, &action, | |
4021 | flag); | |
4022 | ||
4023 | /* No flag action is found. */ | |
4024 | if (!found) | |
4025 | return BGP_ERR_INVALID_FLAG; | |
4026 | ||
4027 | /* Special check for reflector client. */ | |
4028 | if (flag & PEER_FLAG_REFLECTOR_CLIENT | |
4029 | && peer_sort(peer) != BGP_PEER_IBGP) | |
4030 | return BGP_ERR_NOT_INTERNAL_PEER; | |
4031 | ||
4032 | /* Special check for remove-private-AS. */ | |
4033 | if (flag & PEER_FLAG_REMOVE_PRIVATE_AS | |
4034 | && peer_sort(peer) == BGP_PEER_IBGP) | |
4035 | return BGP_ERR_REMOVE_PRIVATE_AS; | |
4036 | ||
4037 | /* as-override is not allowed for IBGP peers */ | |
4038 | if (flag & PEER_FLAG_AS_OVERRIDE && peer_sort(peer) == BGP_PEER_IBGP) | |
4039 | return BGP_ERR_AS_OVERRIDE; | |
4040 | ||
4041 | /* When current flag configuration is same as requested one. */ | |
4042 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4043 | if (set && CHECK_FLAG(peer->af_flags[afi][safi], flag) == flag) | |
4044 | return 0; | |
4045 | if (!set && !CHECK_FLAG(peer->af_flags[afi][safi], flag)) | |
4046 | return 0; | |
4047 | } | |
4048 | ||
4049 | if (set) | |
4050 | SET_FLAG(peer->af_flags[afi][safi], flag); | |
4051 | else | |
4052 | UNSET_FLAG(peer->af_flags[afi][safi], flag); | |
4053 | ||
4054 | /* Execute action when peer is established. */ | |
4055 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP) | |
4056 | && peer->status == Established) { | |
4057 | if (!set && flag == PEER_FLAG_SOFT_RECONFIG) | |
4058 | bgp_clear_adj_in(peer, afi, safi); | |
4059 | else { | |
4060 | if (flag == PEER_FLAG_REFLECTOR_CLIENT) | |
4061 | peer->last_reset = PEER_DOWN_RR_CLIENT_CHANGE; | |
4062 | else if (flag == PEER_FLAG_RSERVER_CLIENT) | |
4063 | peer->last_reset = PEER_DOWN_RS_CLIENT_CHANGE; | |
4064 | else if (flag == PEER_FLAG_ORF_PREFIX_SM) | |
4065 | peer->last_reset = PEER_DOWN_CAPABILITY_CHANGE; | |
4066 | else if (flag == PEER_FLAG_ORF_PREFIX_RM) | |
4067 | peer->last_reset = PEER_DOWN_CAPABILITY_CHANGE; | |
4068 | ||
4069 | peer_change_action(peer, afi, safi, action.type); | |
4070 | } | |
4071 | } | |
4072 | ||
4073 | /* Peer group member updates. */ | |
4074 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4075 | group = peer->group; | |
4076 | ||
4077 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, tmp_peer)) { | |
4078 | if (set | |
4079 | && CHECK_FLAG(tmp_peer->af_flags[afi][safi], flag) | |
4080 | == flag) | |
4081 | continue; | |
4082 | ||
4083 | if (!set | |
4084 | && !CHECK_FLAG(tmp_peer->af_flags[afi][safi], flag)) | |
4085 | continue; | |
4086 | ||
4087 | if (set) | |
4088 | SET_FLAG(tmp_peer->af_flags[afi][safi], flag); | |
4089 | else | |
4090 | UNSET_FLAG(tmp_peer->af_flags[afi][safi], flag); | |
4091 | ||
4092 | if (tmp_peer->status == Established) { | |
4093 | if (!set && flag == PEER_FLAG_SOFT_RECONFIG) | |
4094 | bgp_clear_adj_in(tmp_peer, afi, safi); | |
4095 | else { | |
4096 | if (flag == PEER_FLAG_REFLECTOR_CLIENT) | |
4097 | tmp_peer->last_reset = | |
4098 | PEER_DOWN_RR_CLIENT_CHANGE; | |
4099 | else if (flag | |
4100 | == PEER_FLAG_RSERVER_CLIENT) | |
4101 | tmp_peer->last_reset = | |
4102 | PEER_DOWN_RS_CLIENT_CHANGE; | |
4103 | else if (flag | |
4104 | == PEER_FLAG_ORF_PREFIX_SM) | |
4105 | tmp_peer->last_reset = | |
4106 | PEER_DOWN_CAPABILITY_CHANGE; | |
4107 | else if (flag | |
4108 | == PEER_FLAG_ORF_PREFIX_RM) | |
4109 | tmp_peer->last_reset = | |
4110 | PEER_DOWN_CAPABILITY_CHANGE; | |
4111 | ||
4112 | peer_change_action(tmp_peer, afi, safi, | |
4113 | action.type); | |
4114 | } | |
4115 | } | |
4116 | } | |
4117 | } | |
4118 | ||
4119 | /* Track if addpath TX is in use */ | |
996c9314 LB |
4120 | if (flag & (PEER_FLAG_ADDPATH_TX_ALL_PATHS |
4121 | | PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS)) { | |
d62a17ae | 4122 | bgp = peer->bgp; |
4123 | addpath_tx_used = 0; | |
4124 | ||
4125 | if (set) { | |
4126 | addpath_tx_used = 1; | |
4127 | ||
4128 | if (flag & PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS) { | |
4129 | if (!bgp_flag_check( | |
4130 | bgp, BGP_FLAG_DETERMINISTIC_MED)) { | |
4131 | zlog_warn( | |
4132 | "%s: enabling bgp deterministic-med, this is required" | |
4133 | " for addpath-tx-bestpath-per-AS", | |
4134 | peer->host); | |
4135 | bgp_flag_set( | |
4136 | bgp, | |
4137 | BGP_FLAG_DETERMINISTIC_MED); | |
4138 | bgp_recalculate_all_bestpaths(bgp); | |
4139 | } | |
4140 | } | |
4141 | } else { | |
4142 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, | |
4143 | tmp_peer)) { | |
4144 | if (CHECK_FLAG(tmp_peer->af_flags[afi][safi], | |
4145 | PEER_FLAG_ADDPATH_TX_ALL_PATHS) | |
4146 | || CHECK_FLAG( | |
4147 | tmp_peer->af_flags[afi][safi], | |
4148 | PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS)) { | |
4149 | addpath_tx_used = 1; | |
4150 | break; | |
4151 | } | |
4152 | } | |
4153 | } | |
4154 | ||
4155 | bgp->addpath_tx_used[afi][safi] = addpath_tx_used; | |
4156 | } | |
4157 | ||
4158 | return 0; | |
4159 | } | |
4160 | ||
d7c0a89a | 4161 | int peer_af_flag_set(struct peer *peer, afi_t afi, safi_t safi, uint32_t flag) |
d62a17ae | 4162 | { |
4163 | return peer_af_flag_modify(peer, afi, safi, flag, 1); | |
4164 | } | |
4165 | ||
d7c0a89a | 4166 | int peer_af_flag_unset(struct peer *peer, afi_t afi, safi_t safi, uint32_t flag) |
d62a17ae | 4167 | { |
4168 | return peer_af_flag_modify(peer, afi, safi, flag, 0); | |
4169 | } | |
4170 | ||
4171 | ||
4172 | int peer_tx_shutdown_message_set(struct peer *peer, const char *msg) | |
4173 | { | |
4174 | XFREE(MTYPE_PEER_TX_SHUTDOWN_MSG, peer->tx_shutdown_message); | |
4175 | peer->tx_shutdown_message = | |
4176 | msg ? XSTRDUP(MTYPE_PEER_TX_SHUTDOWN_MSG, msg) : NULL; | |
4177 | return 0; | |
4178 | } | |
4179 | ||
4180 | int peer_tx_shutdown_message_unset(struct peer *peer) | |
4181 | { | |
4182 | XFREE(MTYPE_PEER_TX_SHUTDOWN_MSG, peer->tx_shutdown_message); | |
4183 | return 0; | |
4184 | } | |
4185 | ||
4186 | ||
4187 | /* EBGP multihop configuration. */ | |
4188 | int peer_ebgp_multihop_set(struct peer *peer, int ttl) | |
4189 | { | |
4190 | struct peer_group *group; | |
4191 | struct listnode *node, *nnode; | |
4192 | struct peer *peer1; | |
4193 | ||
4194 | if (peer->sort == BGP_PEER_IBGP || peer->conf_if) | |
4195 | return 0; | |
4196 | ||
4197 | /* see comment in peer_ttl_security_hops_set() */ | |
4198 | if (ttl != MAXTTL) { | |
4199 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4200 | group = peer->group; | |
4201 | if (group->conf->gtsm_hops != 0) | |
4202 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
4203 | ||
4204 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, | |
4205 | peer1)) { | |
4206 | if (peer1->sort == BGP_PEER_IBGP) | |
4207 | continue; | |
4208 | ||
4209 | if (peer1->gtsm_hops != 0) | |
4210 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
4211 | } | |
4212 | } else { | |
4213 | if (peer->gtsm_hops != 0) | |
4214 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
4215 | } | |
4216 | } | |
4217 | ||
4218 | peer->ttl = ttl; | |
4219 | ||
4220 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4221 | if (peer->fd >= 0 && peer->sort != BGP_PEER_IBGP) { | |
4222 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
4223 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4224 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4225 | else | |
4226 | bgp_session_reset(peer); | |
4227 | } | |
4228 | } else { | |
4229 | group = peer->group; | |
4230 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
4231 | if (peer->sort == BGP_PEER_IBGP) | |
4232 | continue; | |
4233 | ||
4234 | peer->ttl = group->conf->ttl; | |
4235 | ||
4236 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
4237 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4238 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4239 | else | |
4240 | bgp_session_reset(peer); | |
4241 | } | |
4242 | } | |
4243 | return 0; | |
4244 | } | |
4245 | ||
4246 | int peer_ebgp_multihop_unset(struct peer *peer) | |
4247 | { | |
4248 | struct peer_group *group; | |
4249 | struct listnode *node, *nnode; | |
4250 | ||
4251 | if (peer->sort == BGP_PEER_IBGP) | |
4252 | return 0; | |
4253 | ||
4254 | if (peer->gtsm_hops != 0 && peer->ttl != MAXTTL) | |
4255 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
4256 | ||
4257 | if (peer_group_active(peer)) | |
4258 | peer->ttl = peer->group->conf->ttl; | |
4259 | else | |
4260 | peer->ttl = 1; | |
4261 | ||
4262 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4263 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
4264 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4265 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4266 | else | |
4267 | bgp_session_reset(peer); | |
4268 | } else { | |
4269 | group = peer->group; | |
4270 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
4271 | if (peer->sort == BGP_PEER_IBGP) | |
4272 | continue; | |
4273 | ||
4274 | peer->ttl = 1; | |
4275 | ||
4276 | if (peer->fd >= 0) { | |
4277 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
4278 | bgp_notify_send( | |
4279 | peer, BGP_NOTIFY_CEASE, | |
4280 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4281 | else | |
4282 | bgp_session_reset(peer); | |
4283 | } | |
4284 | } | |
4285 | } | |
4286 | return 0; | |
4287 | } | |
4288 | ||
4289 | /* Neighbor description. */ | |
4290 | int peer_description_set(struct peer *peer, const char *desc) | |
4291 | { | |
4292 | if (peer->desc) | |
4293 | XFREE(MTYPE_PEER_DESC, peer->desc); | |
4294 | ||
4295 | peer->desc = XSTRDUP(MTYPE_PEER_DESC, desc); | |
4296 | ||
4297 | return 0; | |
4298 | } | |
4299 | ||
4300 | int peer_description_unset(struct peer *peer) | |
4301 | { | |
4302 | if (peer->desc) | |
4303 | XFREE(MTYPE_PEER_DESC, peer->desc); | |
4304 | ||
4305 | peer->desc = NULL; | |
4306 | ||
4307 | return 0; | |
4308 | } | |
4309 | ||
4310 | /* Neighbor update-source. */ | |
4311 | int peer_update_source_if_set(struct peer *peer, const char *ifname) | |
4312 | { | |
4313 | struct peer_group *group; | |
4314 | struct listnode *node, *nnode; | |
4315 | ||
4316 | if (peer->update_if) { | |
4317 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP) | |
4318 | && strcmp(peer->update_if, ifname) == 0) | |
4319 | return 0; | |
4320 | ||
4321 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); | |
4322 | peer->update_if = NULL; | |
4323 | } | |
4324 | ||
4325 | if (peer->update_source) { | |
4326 | sockunion_free(peer->update_source); | |
4327 | peer->update_source = NULL; | |
4328 | } | |
4329 | ||
4330 | peer->update_if = XSTRDUP(MTYPE_PEER_UPDATE_SOURCE, ifname); | |
4331 | ||
4332 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4333 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
4334 | peer->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4335 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4336 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4337 | } else | |
4338 | bgp_session_reset(peer); | |
4339 | return 0; | |
4340 | } | |
4341 | ||
4342 | /* peer-group member updates. */ | |
4343 | group = peer->group; | |
4344 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
4345 | if (peer->update_if) { | |
4346 | if (strcmp(peer->update_if, ifname) == 0) | |
4347 | continue; | |
4348 | ||
4349 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); | |
4350 | peer->update_if = NULL; | |
4351 | } | |
4352 | ||
4353 | if (peer->update_source) { | |
4354 | sockunion_free(peer->update_source); | |
4355 | peer->update_source = NULL; | |
4356 | } | |
4357 | ||
4358 | peer->update_if = XSTRDUP(MTYPE_PEER_UPDATE_SOURCE, ifname); | |
4359 | ||
4360 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
4361 | peer->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4362 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4363 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4364 | } else | |
4365 | bgp_session_reset(peer); | |
4366 | } | |
4367 | return 0; | |
4368 | } | |
4369 | ||
4370 | int peer_update_source_addr_set(struct peer *peer, const union sockunion *su) | |
4371 | { | |
4372 | struct peer_group *group; | |
4373 | struct listnode *node, *nnode; | |
4374 | ||
4375 | if (peer->update_source) { | |
4376 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP) | |
4377 | && sockunion_cmp(peer->update_source, su) == 0) | |
4378 | return 0; | |
4379 | sockunion_free(peer->update_source); | |
4380 | peer->update_source = NULL; | |
4381 | } | |
4382 | ||
4383 | if (peer->update_if) { | |
4384 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); | |
4385 | peer->update_if = NULL; | |
4386 | } | |
4387 | ||
4388 | peer->update_source = sockunion_dup(su); | |
4389 | ||
4390 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4391 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
4392 | peer->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4393 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4394 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4395 | } else | |
4396 | bgp_session_reset(peer); | |
4397 | return 0; | |
4398 | } | |
4399 | ||
4400 | /* peer-group member updates. */ | |
4401 | group = peer->group; | |
4402 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
4403 | if (peer->update_source) { | |
4404 | if (sockunion_cmp(peer->update_source, su) == 0) | |
4405 | continue; | |
4406 | sockunion_free(peer->update_source); | |
4407 | peer->update_source = NULL; | |
4408 | } | |
4409 | ||
4410 | if (peer->update_if) { | |
4411 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); | |
4412 | peer->update_if = NULL; | |
4413 | } | |
4414 | ||
4415 | peer->update_source = sockunion_dup(su); | |
4416 | ||
4417 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
4418 | peer->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4419 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4420 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4421 | } else | |
4422 | bgp_session_reset(peer); | |
4423 | } | |
4424 | return 0; | |
4425 | } | |
4426 | ||
4427 | int peer_update_source_unset(struct peer *peer) | |
4428 | { | |
4429 | union sockunion *su; | |
4430 | struct peer_group *group; | |
4431 | struct listnode *node, *nnode; | |
4432 | ||
4433 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP) && !peer->update_source | |
4434 | && !peer->update_if) | |
4435 | return 0; | |
4436 | ||
4437 | if (peer->update_source) { | |
4438 | sockunion_free(peer->update_source); | |
4439 | peer->update_source = NULL; | |
4440 | } | |
4441 | if (peer->update_if) { | |
4442 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); | |
4443 | peer->update_if = NULL; | |
4444 | } | |
4445 | ||
4446 | if (peer_group_active(peer)) { | |
4447 | group = peer->group; | |
4448 | ||
4449 | if (group->conf->update_source) { | |
4450 | su = sockunion_dup(group->conf->update_source); | |
4451 | peer->update_source = su; | |
4452 | } else if (group->conf->update_if) | |
4453 | peer->update_if = XSTRDUP(MTYPE_PEER_UPDATE_SOURCE, | |
4454 | group->conf->update_if); | |
4455 | } | |
4456 | ||
4457 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4458 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
4459 | peer->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4460 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4461 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4462 | } else | |
4463 | bgp_session_reset(peer); | |
4464 | return 0; | |
4465 | } | |
4466 | ||
4467 | /* peer-group member updates. */ | |
4468 | group = peer->group; | |
4469 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
4470 | if (!peer->update_source && !peer->update_if) | |
4471 | continue; | |
4472 | ||
4473 | if (peer->update_source) { | |
4474 | sockunion_free(peer->update_source); | |
4475 | peer->update_source = NULL; | |
4476 | } | |
4477 | ||
4478 | if (peer->update_if) { | |
4479 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); | |
4480 | peer->update_if = NULL; | |
4481 | } | |
4482 | ||
4483 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
4484 | peer->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4485 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4486 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4487 | } else | |
4488 | bgp_session_reset(peer); | |
4489 | } | |
4490 | return 0; | |
4491 | } | |
4492 | ||
4493 | int peer_default_originate_set(struct peer *peer, afi_t afi, safi_t safi, | |
4494 | const char *rmap) | |
4495 | { | |
4496 | struct peer_group *group; | |
4497 | struct listnode *node, *nnode; | |
4498 | ||
4499 | if (!CHECK_FLAG(peer->af_flags[afi][safi], PEER_FLAG_DEFAULT_ORIGINATE) | |
4500 | || (rmap && !peer->default_rmap[afi][safi].name) | |
4501 | || (rmap | |
4502 | && strcmp(rmap, peer->default_rmap[afi][safi].name) != 0)) { | |
4503 | SET_FLAG(peer->af_flags[afi][safi], | |
4504 | PEER_FLAG_DEFAULT_ORIGINATE); | |
4505 | ||
4506 | if (rmap) { | |
4507 | if (peer->default_rmap[afi][safi].name) | |
4508 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
4509 | peer->default_rmap[afi][safi].name); | |
4510 | peer->default_rmap[afi][safi].name = | |
4511 | XSTRDUP(MTYPE_ROUTE_MAP_NAME, rmap); | |
4512 | peer->default_rmap[afi][safi].map = | |
4513 | route_map_lookup_by_name(rmap); | |
4514 | } | |
4515 | } | |
4516 | ||
4517 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4518 | if (peer->status == Established && peer->afc_nego[afi][safi]) { | |
4519 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
4520 | bgp_default_originate(peer, afi, safi, 0); | |
4521 | bgp_announce_route(peer, afi, safi); | |
4522 | } | |
4523 | return 0; | |
4524 | } | |
4525 | ||
4526 | /* peer-group member updates. */ | |
4527 | group = peer->group; | |
4528 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
4529 | SET_FLAG(peer->af_flags[afi][safi], | |
4530 | PEER_FLAG_DEFAULT_ORIGINATE); | |
4531 | ||
4532 | if (rmap) { | |
4533 | if (peer->default_rmap[afi][safi].name) | |
4534 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
4535 | peer->default_rmap[afi][safi].name); | |
4536 | peer->default_rmap[afi][safi].name = | |
4537 | XSTRDUP(MTYPE_ROUTE_MAP_NAME, rmap); | |
4538 | peer->default_rmap[afi][safi].map = | |
4539 | route_map_lookup_by_name(rmap); | |
4540 | } | |
4541 | ||
4542 | if (peer->status == Established && peer->afc_nego[afi][safi]) { | |
4543 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
4544 | bgp_default_originate(peer, afi, safi, 0); | |
4545 | bgp_announce_route(peer, afi, safi); | |
4546 | } | |
4547 | } | |
4548 | return 0; | |
4549 | } | |
4550 | ||
4551 | int peer_default_originate_unset(struct peer *peer, afi_t afi, safi_t safi) | |
4552 | { | |
4553 | struct peer_group *group; | |
4554 | struct listnode *node, *nnode; | |
4555 | ||
4556 | if (CHECK_FLAG(peer->af_flags[afi][safi], | |
4557 | PEER_FLAG_DEFAULT_ORIGINATE)) { | |
4558 | UNSET_FLAG(peer->af_flags[afi][safi], | |
4559 | PEER_FLAG_DEFAULT_ORIGINATE); | |
4560 | ||
4561 | if (peer->default_rmap[afi][safi].name) | |
4562 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
4563 | peer->default_rmap[afi][safi].name); | |
4564 | peer->default_rmap[afi][safi].name = NULL; | |
4565 | peer->default_rmap[afi][safi].map = NULL; | |
4566 | } | |
4567 | ||
4568 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4569 | if (peer->status == Established && peer->afc_nego[afi][safi]) { | |
4570 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
4571 | bgp_default_originate(peer, afi, safi, 1); | |
4572 | bgp_announce_route(peer, afi, safi); | |
4573 | } | |
4574 | return 0; | |
4575 | } | |
4576 | ||
4577 | /* peer-group member updates. */ | |
4578 | group = peer->group; | |
4579 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
4580 | UNSET_FLAG(peer->af_flags[afi][safi], | |
4581 | PEER_FLAG_DEFAULT_ORIGINATE); | |
4582 | ||
4583 | if (peer->default_rmap[afi][safi].name) | |
4584 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
4585 | peer->default_rmap[afi][safi].name); | |
4586 | peer->default_rmap[afi][safi].name = NULL; | |
4587 | peer->default_rmap[afi][safi].map = NULL; | |
4588 | ||
4589 | if (peer->status == Established && peer->afc_nego[afi][safi]) { | |
4590 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
4591 | bgp_default_originate(peer, afi, safi, 1); | |
4592 | bgp_announce_route(peer, afi, safi); | |
4593 | } | |
4594 | } | |
4595 | return 0; | |
4596 | } | |
4597 | ||
d7c0a89a | 4598 | int peer_port_set(struct peer *peer, uint16_t port) |
d62a17ae | 4599 | { |
4600 | peer->port = port; | |
4601 | return 0; | |
4602 | } | |
4603 | ||
4604 | int peer_port_unset(struct peer *peer) | |
4605 | { | |
4606 | peer->port = BGP_PORT_DEFAULT; | |
4607 | return 0; | |
4608 | } | |
4609 | ||
4610 | /* | |
4611 | * Helper function that is called after the name of the policy | |
4612 | * being used by a peer has changed (AF specific). Automatically | |
4613 | * initiates inbound or outbound processing as needed. | |
4614 | */ | |
4615 | static void peer_on_policy_change(struct peer *peer, afi_t afi, safi_t safi, | |
4616 | int outbound) | |
4617 | { | |
4618 | if (outbound) { | |
4619 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
4620 | if (peer->status == Established) | |
4621 | bgp_announce_route(peer, afi, safi); | |
4622 | } else { | |
4623 | if (peer->status != Established) | |
4624 | return; | |
4625 | ||
4626 | if (CHECK_FLAG(peer->af_flags[afi][safi], | |
4627 | PEER_FLAG_SOFT_RECONFIG)) | |
4628 | bgp_soft_reconfig_in(peer, afi, safi); | |
4629 | else if (CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_OLD_RCV) | |
4630 | || CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_NEW_RCV)) | |
4631 | bgp_route_refresh_send(peer, afi, safi, 0, 0, 0); | |
4632 | } | |
4633 | } | |
4634 | ||
4635 | ||
4636 | /* neighbor weight. */ | |
d7c0a89a | 4637 | int peer_weight_set(struct peer *peer, afi_t afi, safi_t safi, uint16_t weight) |
d62a17ae | 4638 | { |
4639 | struct peer_group *group; | |
4640 | struct listnode *node, *nnode; | |
4641 | ||
4642 | if (peer->weight[afi][safi] != weight) { | |
4643 | peer->weight[afi][safi] = weight; | |
4644 | SET_FLAG(peer->af_flags[afi][safi], PEER_FLAG_WEIGHT); | |
4645 | peer_on_policy_change(peer, afi, safi, 0); | |
4646 | } | |
4647 | ||
4648 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
4649 | return 0; | |
4650 | ||
4651 | /* peer-group member updates. */ | |
4652 | group = peer->group; | |
4653 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
4654 | if (peer->weight[afi][safi] != weight) { | |
4655 | peer->weight[afi][safi] = weight; | |
4656 | SET_FLAG(peer->af_flags[afi][safi], PEER_FLAG_WEIGHT); | |
4657 | peer_on_policy_change(peer, afi, safi, 0); | |
4658 | } | |
4659 | } | |
4660 | return 0; | |
4661 | } | |
4662 | ||
4663 | int peer_weight_unset(struct peer *peer, afi_t afi, safi_t safi) | |
4664 | { | |
4665 | struct peer_group *group; | |
4666 | struct listnode *node, *nnode; | |
4667 | ||
4668 | /* not the peer-group itself but a peer in a peer-group */ | |
4669 | if (peer_group_active(peer)) { | |
4670 | group = peer->group; | |
4671 | ||
4672 | /* inherit weight from the peer-group */ | |
4673 | if (CHECK_FLAG(group->conf->af_flags[afi][safi], | |
4674 | PEER_FLAG_WEIGHT)) { | |
4675 | peer->weight[afi][safi] = | |
4676 | group->conf->weight[afi][safi]; | |
4677 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_WEIGHT); | |
4678 | peer_on_policy_change(peer, afi, safi, 0); | |
4679 | } else { | |
4680 | if (CHECK_FLAG(peer->af_flags[afi][safi], | |
4681 | PEER_FLAG_WEIGHT)) { | |
4682 | peer->weight[afi][safi] = 0; | |
4683 | peer_af_flag_unset(peer, afi, safi, | |
4684 | PEER_FLAG_WEIGHT); | |
4685 | peer_on_policy_change(peer, afi, safi, 0); | |
4686 | } | |
4687 | } | |
4688 | } | |
4689 | ||
4690 | else { | |
4691 | if (CHECK_FLAG(peer->af_flags[afi][safi], PEER_FLAG_WEIGHT)) { | |
4692 | peer->weight[afi][safi] = 0; | |
4693 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_WEIGHT); | |
4694 | peer_on_policy_change(peer, afi, safi, 0); | |
4695 | } | |
4696 | ||
4697 | /* peer-group member updates. */ | |
4698 | group = peer->group; | |
4699 | ||
4700 | if (group) { | |
4701 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, | |
4702 | peer)) { | |
4703 | if (CHECK_FLAG(peer->af_flags[afi][safi], | |
4704 | PEER_FLAG_WEIGHT)) { | |
4705 | peer->weight[afi][safi] = 0; | |
4706 | peer_af_flag_unset(peer, afi, safi, | |
4707 | PEER_FLAG_WEIGHT); | |
4708 | peer_on_policy_change(peer, afi, safi, | |
4709 | 0); | |
4710 | } | |
4711 | } | |
4712 | } | |
4713 | } | |
4714 | return 0; | |
4715 | } | |
4716 | ||
d7c0a89a | 4717 | int peer_timers_set(struct peer *peer, uint32_t keepalive, uint32_t holdtime) |
d62a17ae | 4718 | { |
4719 | struct peer_group *group; | |
4720 | struct listnode *node, *nnode; | |
4721 | ||
4722 | /* keepalive value check. */ | |
4723 | if (keepalive > 65535) | |
4724 | return BGP_ERR_INVALID_VALUE; | |
4725 | ||
4726 | /* Holdtime value check. */ | |
4727 | if (holdtime > 65535) | |
4728 | return BGP_ERR_INVALID_VALUE; | |
4729 | ||
4730 | /* Holdtime value must be either 0 or greater than 3. */ | |
4731 | if (holdtime < 3 && holdtime != 0) | |
4732 | return BGP_ERR_INVALID_VALUE; | |
4733 | ||
4734 | /* Set value to the configuration. */ | |
d62a17ae | 4735 | peer->holdtime = holdtime; |
4736 | peer->keepalive = (keepalive < holdtime / 3 ? keepalive : holdtime / 3); | |
4737 | ||
d25e4efc DS |
4738 | /* First work on real peers with timers */ |
4739 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
d62a17ae | 4740 | SET_FLAG(peer->config, PEER_CONFIG_TIMER); |
d25e4efc DS |
4741 | UNSET_FLAG(peer->config, PEER_GROUP_CONFIG_TIMER); |
4742 | } else { | |
4743 | /* Now work on the peer-group timers */ | |
4744 | SET_FLAG(peer->config, PEER_GROUP_CONFIG_TIMER); | |
4745 | ||
4746 | /* peer-group member updates. */ | |
4747 | group = peer->group; | |
4748 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
4749 | /* Skip peers that have their own timers */ | |
4750 | if (CHECK_FLAG(peer->config, PEER_CONFIG_TIMER)) | |
4751 | continue; | |
4752 | ||
4753 | SET_FLAG(peer->config, PEER_GROUP_CONFIG_TIMER); | |
4754 | peer->holdtime = group->conf->holdtime; | |
4755 | peer->keepalive = group->conf->keepalive; | |
4756 | } | |
d62a17ae | 4757 | } |
d25e4efc | 4758 | |
d62a17ae | 4759 | return 0; |
4760 | } | |
4761 | ||
4762 | int peer_timers_unset(struct peer *peer) | |
4763 | { | |
4764 | struct peer_group *group; | |
4765 | struct listnode *node, *nnode; | |
4766 | ||
d25e4efc DS |
4767 | /* First work on real peers vs the peer-group */ |
4768 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
d62a17ae | 4769 | UNSET_FLAG(peer->config, PEER_CONFIG_TIMER); |
d62a17ae | 4770 | peer->keepalive = 0; |
d25e4efc DS |
4771 | peer->holdtime = 0; |
4772 | ||
4773 | if (peer->group && peer->group->conf->holdtime) { | |
4774 | SET_FLAG(peer->config, PEER_GROUP_CONFIG_TIMER); | |
4775 | peer->keepalive = peer->group->conf->keepalive; | |
4776 | peer->holdtime = peer->group->conf->holdtime; | |
4777 | } | |
4778 | } else { | |
4779 | /* peer-group member updates. */ | |
4780 | group = peer->group; | |
4781 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
4782 | if (!CHECK_FLAG(peer->config, PEER_CONFIG_TIMER)) { | |
4783 | UNSET_FLAG(peer->config, | |
4784 | PEER_GROUP_CONFIG_TIMER); | |
4785 | peer->holdtime = 0; | |
4786 | peer->keepalive = 0; | |
4787 | } | |
4788 | } | |
4789 | ||
4790 | UNSET_FLAG(group->conf->config, PEER_GROUP_CONFIG_TIMER); | |
4791 | group->conf->holdtime = 0; | |
4792 | group->conf->keepalive = 0; | |
d62a17ae | 4793 | } |
4794 | ||
4795 | return 0; | |
4796 | } | |
4797 | ||
d7c0a89a | 4798 | int peer_timers_connect_set(struct peer *peer, uint32_t connect) |
d62a17ae | 4799 | { |
4800 | struct peer_group *group; | |
4801 | struct listnode *node, *nnode; | |
4802 | ||
4803 | if (connect > 65535) | |
4804 | return BGP_ERR_INVALID_VALUE; | |
4805 | ||
4806 | /* Set value to the configuration. */ | |
4807 | SET_FLAG(peer->config, PEER_CONFIG_CONNECT); | |
4808 | peer->connect = connect; | |
4809 | ||
4810 | /* Set value to timer setting. */ | |
4811 | peer->v_connect = connect; | |
4812 | ||
4813 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
4814 | return 0; | |
4815 | ||
4816 | /* peer-group member updates. */ | |
4817 | group = peer->group; | |
4818 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
4819 | SET_FLAG(peer->config, PEER_CONFIG_CONNECT); | |
4820 | peer->connect = connect; | |
4821 | peer->v_connect = connect; | |
4822 | } | |
4823 | return 0; | |
4824 | } | |
4825 | ||
4826 | int peer_timers_connect_unset(struct peer *peer) | |
4827 | { | |
4828 | struct peer_group *group; | |
4829 | struct listnode *node, *nnode; | |
4830 | ||
4831 | /* Clear configuration. */ | |
4832 | UNSET_FLAG(peer->config, PEER_CONFIG_CONNECT); | |
4833 | peer->connect = 0; | |
4834 | ||
4835 | /* Set timer setting to default value. */ | |
4836 | peer->v_connect = BGP_DEFAULT_CONNECT_RETRY; | |
4837 | ||
4838 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
4839 | return 0; | |
4840 | ||
4841 | /* peer-group member updates. */ | |
4842 | group = peer->group; | |
4843 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
4844 | UNSET_FLAG(peer->config, PEER_CONFIG_CONNECT); | |
4845 | peer->connect = 0; | |
4846 | peer->v_connect = BGP_DEFAULT_CONNECT_RETRY; | |
4847 | } | |
4848 | return 0; | |
4849 | } | |
4850 | ||
d7c0a89a | 4851 | int peer_advertise_interval_set(struct peer *peer, uint32_t routeadv) |
d62a17ae | 4852 | { |
4853 | struct peer_group *group; | |
4854 | struct listnode *node, *nnode; | |
4855 | ||
4856 | if (routeadv > 600) | |
4857 | return BGP_ERR_INVALID_VALUE; | |
4858 | ||
4859 | SET_FLAG(peer->config, PEER_CONFIG_ROUTEADV); | |
4860 | peer->routeadv = routeadv; | |
4861 | peer->v_routeadv = routeadv; | |
4862 | ||
4863 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4864 | update_group_adjust_peer_afs(peer); | |
4865 | if (peer->status == Established) | |
4866 | bgp_announce_route_all(peer); | |
4867 | return 0; | |
4868 | } | |
4869 | ||
4870 | /* peer-group member updates. */ | |
4871 | group = peer->group; | |
4872 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
4873 | SET_FLAG(peer->config, PEER_CONFIG_ROUTEADV); | |
4874 | peer->routeadv = routeadv; | |
4875 | peer->v_routeadv = routeadv; | |
4876 | update_group_adjust_peer_afs(peer); | |
4877 | if (peer->status == Established) | |
4878 | bgp_announce_route_all(peer); | |
4879 | } | |
4880 | ||
4881 | return 0; | |
4882 | } | |
4883 | ||
4884 | int peer_advertise_interval_unset(struct peer *peer) | |
4885 | { | |
4886 | struct peer_group *group; | |
4887 | struct listnode *node, *nnode; | |
4888 | ||
4889 | UNSET_FLAG(peer->config, PEER_CONFIG_ROUTEADV); | |
4890 | peer->routeadv = 0; | |
4891 | ||
4892 | if (peer->sort == BGP_PEER_IBGP) | |
4893 | peer->v_routeadv = BGP_DEFAULT_IBGP_ROUTEADV; | |
4894 | else | |
4895 | peer->v_routeadv = BGP_DEFAULT_EBGP_ROUTEADV; | |
4896 | ||
4897 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4898 | update_group_adjust_peer_afs(peer); | |
4899 | if (peer->status == Established) | |
4900 | bgp_announce_route_all(peer); | |
4901 | return 0; | |
4902 | } | |
4903 | ||
4904 | /* peer-group member updates. */ | |
4905 | group = peer->group; | |
4906 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
4907 | UNSET_FLAG(peer->config, PEER_CONFIG_ROUTEADV); | |
4908 | peer->routeadv = 0; | |
4909 | ||
4910 | if (peer->sort == BGP_PEER_IBGP) | |
4911 | peer->v_routeadv = BGP_DEFAULT_IBGP_ROUTEADV; | |
4912 | else | |
4913 | peer->v_routeadv = BGP_DEFAULT_EBGP_ROUTEADV; | |
4914 | ||
4915 | update_group_adjust_peer_afs(peer); | |
4916 | if (peer->status == Established) | |
4917 | bgp_announce_route_all(peer); | |
4918 | } | |
4919 | ||
4920 | return 0; | |
4921 | } | |
4922 | ||
4923 | /* neighbor interface */ | |
4924 | void peer_interface_set(struct peer *peer, const char *str) | |
4925 | { | |
4926 | if (peer->ifname) | |
4927 | XFREE(MTYPE_BGP_PEER_IFNAME, peer->ifname); | |
4928 | peer->ifname = XSTRDUP(MTYPE_BGP_PEER_IFNAME, str); | |
4929 | } | |
4930 | ||
4931 | void peer_interface_unset(struct peer *peer) | |
4932 | { | |
4933 | if (peer->ifname) | |
4934 | XFREE(MTYPE_BGP_PEER_IFNAME, peer->ifname); | |
4935 | peer->ifname = NULL; | |
4936 | } | |
4937 | ||
4938 | /* Allow-as in. */ | |
4939 | int peer_allowas_in_set(struct peer *peer, afi_t afi, safi_t safi, | |
4940 | int allow_num, int origin) | |
4941 | { | |
4942 | struct peer_group *group; | |
4943 | struct listnode *node, *nnode; | |
4944 | ||
4945 | if (origin) { | |
4946 | if (peer->allowas_in[afi][safi] | |
4947 | || CHECK_FLAG(peer->af_flags[afi][safi], | |
4948 | PEER_FLAG_ALLOWAS_IN) | |
4949 | || !CHECK_FLAG(peer->af_flags[afi][safi], | |
4950 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { | |
4951 | peer->allowas_in[afi][safi] = 0; | |
4952 | peer_af_flag_unset(peer, afi, safi, | |
4953 | PEER_FLAG_ALLOWAS_IN); | |
4954 | peer_af_flag_set(peer, afi, safi, | |
4955 | PEER_FLAG_ALLOWAS_IN_ORIGIN); | |
4956 | peer_on_policy_change(peer, afi, safi, 0); | |
4957 | } | |
4958 | ||
4959 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
4960 | return 0; | |
4961 | ||
4962 | group = peer->group; | |
4963 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
4964 | if (peer->allowas_in[afi][safi] | |
4965 | || CHECK_FLAG(peer->af_flags[afi][safi], | |
4966 | PEER_FLAG_ALLOWAS_IN) | |
4967 | || !CHECK_FLAG(peer->af_flags[afi][safi], | |
4968 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { | |
4969 | peer->allowas_in[afi][safi] = 0; | |
4970 | peer_af_flag_unset(peer, afi, safi, | |
4971 | PEER_FLAG_ALLOWAS_IN); | |
4972 | peer_af_flag_set(peer, afi, safi, | |
4973 | PEER_FLAG_ALLOWAS_IN_ORIGIN); | |
4974 | peer_on_policy_change(peer, afi, safi, 0); | |
4975 | } | |
4976 | } | |
4977 | } else { | |
4978 | if (allow_num < 1 || allow_num > 10) | |
4979 | return BGP_ERR_INVALID_VALUE; | |
4980 | ||
4981 | if (peer->allowas_in[afi][safi] != allow_num | |
4982 | || CHECK_FLAG(peer->af_flags[afi][safi], | |
4983 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { | |
4984 | peer->allowas_in[afi][safi] = allow_num; | |
4985 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_ALLOWAS_IN); | |
4986 | peer_af_flag_unset(peer, afi, safi, | |
4987 | PEER_FLAG_ALLOWAS_IN_ORIGIN); | |
4988 | peer_on_policy_change(peer, afi, safi, 0); | |
4989 | } | |
4990 | ||
4991 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
4992 | return 0; | |
4993 | ||
4994 | group = peer->group; | |
4995 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
4996 | if (peer->allowas_in[afi][safi] != allow_num | |
4997 | || CHECK_FLAG(peer->af_flags[afi][safi], | |
4998 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { | |
4999 | peer->allowas_in[afi][safi] = allow_num; | |
5000 | peer_af_flag_set(peer, afi, safi, | |
5001 | PEER_FLAG_ALLOWAS_IN); | |
5002 | peer_af_flag_unset(peer, afi, safi, | |
5003 | PEER_FLAG_ALLOWAS_IN_ORIGIN); | |
5004 | peer_on_policy_change(peer, afi, safi, 0); | |
5005 | } | |
5006 | } | |
5007 | } | |
5008 | ||
5009 | return 0; | |
5010 | } | |
5011 | ||
5012 | int peer_allowas_in_unset(struct peer *peer, afi_t afi, safi_t safi) | |
5013 | { | |
5014 | struct peer_group *group; | |
5015 | struct peer *tmp_peer; | |
5016 | struct listnode *node, *nnode; | |
5017 | ||
5018 | /* If this is a peer-group we must first clear the flags for all of the | |
5019 | * peer-group members | |
5020 | */ | |
5021 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
5022 | group = peer->group; | |
5023 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, tmp_peer)) { | |
5024 | if (CHECK_FLAG(tmp_peer->af_flags[afi][safi], | |
5025 | PEER_FLAG_ALLOWAS_IN) | |
5026 | || CHECK_FLAG(tmp_peer->af_flags[afi][safi], | |
5027 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { | |
5028 | tmp_peer->allowas_in[afi][safi] = 0; | |
5029 | peer_af_flag_unset(tmp_peer, afi, safi, | |
5030 | PEER_FLAG_ALLOWAS_IN); | |
5031 | peer_af_flag_unset(tmp_peer, afi, safi, | |
5032 | PEER_FLAG_ALLOWAS_IN_ORIGIN); | |
5033 | peer_on_policy_change(tmp_peer, afi, safi, 0); | |
5034 | } | |
5035 | } | |
5036 | } | |
5037 | ||
5038 | if (CHECK_FLAG(peer->af_flags[afi][safi], PEER_FLAG_ALLOWAS_IN) | |
5039 | || CHECK_FLAG(peer->af_flags[afi][safi], | |
5040 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { | |
5041 | peer->allowas_in[afi][safi] = 0; | |
5042 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_ALLOWAS_IN); | |
5043 | peer_af_flag_unset(peer, afi, safi, | |
5044 | PEER_FLAG_ALLOWAS_IN_ORIGIN); | |
5045 | peer_on_policy_change(peer, afi, safi, 0); | |
5046 | } | |
5047 | ||
5048 | return 0; | |
5049 | } | |
5050 | ||
5051 | int peer_local_as_set(struct peer *peer, as_t as, int no_prepend, | |
5052 | int replace_as) | |
5053 | { | |
5054 | struct bgp *bgp = peer->bgp; | |
5055 | struct peer_group *group; | |
5056 | struct listnode *node, *nnode; | |
5057 | ||
5058 | if (peer_sort(peer) != BGP_PEER_EBGP | |
5059 | && peer_sort(peer) != BGP_PEER_INTERNAL) | |
5060 | return BGP_ERR_LOCAL_AS_ALLOWED_ONLY_FOR_EBGP; | |
5061 | ||
5062 | if (bgp->as == as) | |
5063 | return BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS; | |
5064 | ||
5065 | if (peer->as == as) | |
5066 | return BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS_REMOTE_AS; | |
5067 | ||
5068 | if (peer->change_local_as == as | |
5069 | && ((CHECK_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND) | |
5070 | && no_prepend) | |
5071 | || (!CHECK_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND) | |
5072 | && !no_prepend)) | |
5073 | && ((CHECK_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS) | |
5074 | && replace_as) | |
5075 | || (!CHECK_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS) | |
5076 | && !replace_as))) | |
5077 | return 0; | |
5078 | ||
5079 | peer->change_local_as = as; | |
5080 | if (no_prepend) | |
5081 | SET_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5082 | else | |
5083 | UNSET_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5084 | ||
5085 | if (replace_as) | |
5086 | SET_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
5087 | else | |
5088 | UNSET_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
5089 | ||
5090 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
5091 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
5092 | peer->last_reset = PEER_DOWN_LOCAL_AS_CHANGE; | |
5093 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5094 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5095 | } else | |
5096 | bgp_session_reset(peer); | |
5097 | return 0; | |
5098 | } | |
5099 | ||
5100 | group = peer->group; | |
5101 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
5102 | peer->change_local_as = as; | |
5103 | if (no_prepend) | |
5104 | SET_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5105 | else | |
5106 | UNSET_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5107 | ||
5108 | if (replace_as) | |
5109 | SET_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
5110 | else | |
5111 | UNSET_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
5112 | ||
5113 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
5114 | peer->last_reset = PEER_DOWN_LOCAL_AS_CHANGE; | |
5115 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5116 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5117 | } else | |
5118 | BGP_EVENT_ADD(peer, BGP_Stop); | |
5119 | } | |
5120 | ||
5121 | return 0; | |
5122 | } | |
5123 | ||
5124 | int peer_local_as_unset(struct peer *peer) | |
5125 | { | |
5126 | struct peer_group *group; | |
5127 | struct listnode *node, *nnode; | |
5128 | ||
5129 | if (!peer->change_local_as) | |
5130 | return 0; | |
5131 | ||
5132 | peer->change_local_as = 0; | |
5133 | UNSET_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5134 | UNSET_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
5135 | ||
5136 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
5137 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
5138 | peer->last_reset = PEER_DOWN_LOCAL_AS_CHANGE; | |
5139 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5140 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5141 | } else | |
5142 | BGP_EVENT_ADD(peer, BGP_Stop); | |
5143 | ||
5144 | return 0; | |
5145 | } | |
5146 | ||
5147 | group = peer->group; | |
5148 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
5149 | peer->change_local_as = 0; | |
5150 | UNSET_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5151 | UNSET_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
5152 | ||
5153 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
5154 | peer->last_reset = PEER_DOWN_LOCAL_AS_CHANGE; | |
5155 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5156 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5157 | } else | |
5158 | bgp_session_reset(peer); | |
5159 | } | |
5160 | return 0; | |
5161 | } | |
5162 | ||
5163 | /* Set password for authenticating with the peer. */ | |
5164 | int peer_password_set(struct peer *peer, const char *password) | |
5165 | { | |
5166 | struct listnode *nn, *nnode; | |
5167 | int len = password ? strlen(password) : 0; | |
5168 | int ret = BGP_SUCCESS; | |
5169 | ||
5170 | if ((len < PEER_PASSWORD_MINLEN) || (len > PEER_PASSWORD_MAXLEN)) | |
5171 | return BGP_ERR_INVALID_VALUE; | |
5172 | ||
5173 | if (peer->password && strcmp(peer->password, password) == 0 | |
5174 | && !CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
5175 | return 0; | |
5176 | ||
5177 | if (peer->password) | |
5178 | XFREE(MTYPE_PEER_PASSWORD, peer->password); | |
5179 | ||
5180 | peer->password = XSTRDUP(MTYPE_PEER_PASSWORD, password); | |
5181 | ||
5182 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
5183 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
5184 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5185 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5186 | else | |
5187 | bgp_session_reset(peer); | |
5188 | ||
5189 | if (BGP_PEER_SU_UNSPEC(peer)) | |
5190 | return BGP_SUCCESS; | |
5191 | ||
5192 | return (bgp_md5_set(peer) >= 0) ? BGP_SUCCESS | |
5193 | : BGP_ERR_TCPSIG_FAILED; | |
5194 | } | |
5195 | ||
5196 | for (ALL_LIST_ELEMENTS(peer->group->peer, nn, nnode, peer)) { | |
5197 | if (peer->password && strcmp(peer->password, password) == 0) | |
5198 | continue; | |
5199 | ||
5200 | if (peer->password) | |
5201 | XFREE(MTYPE_PEER_PASSWORD, peer->password); | |
5202 | ||
5203 | peer->password = XSTRDUP(MTYPE_PEER_PASSWORD, password); | |
5204 | ||
5205 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
5206 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5207 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5208 | else | |
5209 | bgp_session_reset(peer); | |
5210 | ||
5211 | if (!BGP_PEER_SU_UNSPEC(peer)) { | |
5212 | if (bgp_md5_set(peer) < 0) | |
5213 | ret = BGP_ERR_TCPSIG_FAILED; | |
5214 | } | |
5215 | } | |
5216 | ||
5217 | return ret; | |
5218 | } | |
5219 | ||
5220 | int peer_password_unset(struct peer *peer) | |
5221 | { | |
5222 | struct listnode *nn, *nnode; | |
5223 | ||
5224 | if (!peer->password && !CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
5225 | return 0; | |
5226 | ||
5227 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
5228 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
5229 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5230 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5231 | else | |
5232 | bgp_session_reset(peer); | |
5233 | ||
5234 | if (peer->password) | |
5235 | XFREE(MTYPE_PEER_PASSWORD, peer->password); | |
5236 | ||
5237 | peer->password = NULL; | |
5238 | ||
5239 | if (!BGP_PEER_SU_UNSPEC(peer)) | |
5240 | bgp_md5_unset(peer); | |
5241 | ||
5242 | return 0; | |
5243 | } | |
5244 | ||
5245 | XFREE(MTYPE_PEER_PASSWORD, peer->password); | |
5246 | peer->password = NULL; | |
5247 | ||
5248 | for (ALL_LIST_ELEMENTS(peer->group->peer, nn, nnode, peer)) { | |
5249 | if (!peer->password) | |
5250 | continue; | |
5251 | ||
5252 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
5253 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5254 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5255 | else | |
5256 | bgp_session_reset(peer); | |
5257 | ||
5258 | XFREE(MTYPE_PEER_PASSWORD, peer->password); | |
5259 | peer->password = NULL; | |
5260 | ||
5261 | if (!BGP_PEER_SU_UNSPEC(peer)) | |
5262 | bgp_md5_unset(peer); | |
5263 | } | |
5264 | ||
5265 | return 0; | |
5266 | } | |
6b0655a2 | 5267 | |
3f9c7369 | 5268 | |
718e3744 | 5269 | /* Set distribute list to the peer. */ |
d62a17ae | 5270 | int peer_distribute_set(struct peer *peer, afi_t afi, safi_t safi, int direct, |
5271 | const char *name) | |
5272 | { | |
5273 | struct bgp_filter *filter; | |
5274 | struct peer_group *group; | |
5275 | struct listnode *node, *nnode; | |
5276 | ||
5277 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5278 | return BGP_ERR_INVALID_VALUE; | |
5279 | ||
5280 | filter = &peer->filter[afi][safi]; | |
5281 | ||
5282 | if (filter->plist[direct].name) | |
5283 | return BGP_ERR_PEER_FILTER_CONFLICT; | |
5284 | ||
5285 | if (filter->dlist[direct].name) | |
5286 | XFREE(MTYPE_BGP_FILTER_NAME, filter->dlist[direct].name); | |
5287 | filter->dlist[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5288 | filter->dlist[direct].alist = access_list_lookup(afi, name); | |
5289 | ||
5290 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
5291 | peer_on_policy_change(peer, afi, safi, | |
5292 | (direct == FILTER_OUT) ? 1 : 0); | |
5293 | return 0; | |
5294 | } | |
5295 | ||
5296 | group = peer->group; | |
5297 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
5298 | filter = &peer->filter[afi][safi]; | |
5299 | ||
5300 | if (filter->dlist[direct].name) | |
5301 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5302 | filter->dlist[direct].name); | |
5303 | filter->dlist[direct].name = | |
5304 | XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5305 | filter->dlist[direct].alist = access_list_lookup(afi, name); | |
5306 | peer_on_policy_change(peer, afi, safi, | |
5307 | (direct == FILTER_OUT) ? 1 : 0); | |
5308 | } | |
5309 | ||
5310 | return 0; | |
5311 | } | |
5312 | ||
5313 | int peer_distribute_unset(struct peer *peer, afi_t afi, safi_t safi, int direct) | |
5314 | { | |
5315 | struct bgp_filter *filter; | |
5316 | struct bgp_filter *gfilter; | |
5317 | struct peer_group *group; | |
5318 | struct listnode *node, *nnode; | |
5319 | ||
5320 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5321 | return BGP_ERR_INVALID_VALUE; | |
5322 | ||
5323 | filter = &peer->filter[afi][safi]; | |
5324 | ||
5325 | /* apply peer-group filter */ | |
5326 | if (peer_group_active(peer)) { | |
5327 | gfilter = &peer->group->conf->filter[afi][safi]; | |
5328 | ||
5329 | if (gfilter->dlist[direct].name) { | |
5330 | if (filter->dlist[direct].name) | |
5331 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5332 | filter->dlist[direct].name); | |
5333 | filter->dlist[direct].name = | |
5334 | XSTRDUP(MTYPE_BGP_FILTER_NAME, | |
5335 | gfilter->dlist[direct].name); | |
5336 | filter->dlist[direct].alist = | |
5337 | gfilter->dlist[direct].alist; | |
5338 | peer_on_policy_change(peer, afi, safi, | |
5339 | (direct == FILTER_OUT) ? 1 : 0); | |
5340 | return 0; | |
5341 | } | |
5342 | } | |
5343 | ||
5344 | if (filter->dlist[direct].name) | |
5345 | XFREE(MTYPE_BGP_FILTER_NAME, filter->dlist[direct].name); | |
5346 | filter->dlist[direct].name = NULL; | |
5347 | filter->dlist[direct].alist = NULL; | |
5348 | ||
5349 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
5350 | peer_on_policy_change(peer, afi, safi, | |
5351 | (direct == FILTER_OUT) ? 1 : 0); | |
5352 | return 0; | |
5353 | } | |
5354 | ||
5355 | group = peer->group; | |
5356 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
5357 | filter = &peer->filter[afi][safi]; | |
5358 | ||
5359 | if (filter->dlist[direct].name) | |
5360 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5361 | filter->dlist[direct].name); | |
5362 | filter->dlist[direct].name = NULL; | |
5363 | filter->dlist[direct].alist = NULL; | |
5364 | peer_on_policy_change(peer, afi, safi, | |
5365 | (direct == FILTER_OUT) ? 1 : 0); | |
5366 | } | |
5367 | ||
5368 | return 0; | |
5369 | } | |
5370 | ||
5371 | /* Update distribute list. */ | |
5372 | static void peer_distribute_update(struct access_list *access) | |
5373 | { | |
5374 | afi_t afi; | |
5375 | safi_t safi; | |
5376 | int direct; | |
5377 | struct listnode *mnode, *mnnode; | |
5378 | struct listnode *node, *nnode; | |
5379 | struct bgp *bgp; | |
5380 | struct peer *peer; | |
5381 | struct peer_group *group; | |
5382 | struct bgp_filter *filter; | |
5383 | ||
5384 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
5385 | if (access->name) | |
5386 | update_group_policy_update(bgp, BGP_POLICY_FILTER_LIST, | |
5387 | access->name, 0, 0); | |
5388 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
05c7a1cc QY |
5389 | FOREACH_AFI_SAFI (afi, safi) { |
5390 | filter = &peer->filter[afi][safi]; | |
5391 | ||
5392 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
5393 | direct++) { | |
5394 | if (filter->dlist[direct].name) | |
5395 | filter->dlist[direct] | |
5396 | .alist = access_list_lookup( | |
5397 | afi, | |
d62a17ae | 5398 | filter->dlist[direct] |
05c7a1cc QY |
5399 | .name); |
5400 | else | |
5401 | filter->dlist[direct].alist = | |
5402 | NULL; | |
d62a17ae | 5403 | } |
05c7a1cc | 5404 | } |
d62a17ae | 5405 | } |
5406 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
05c7a1cc QY |
5407 | FOREACH_AFI_SAFI (afi, safi) { |
5408 | filter = &group->conf->filter[afi][safi]; | |
5409 | ||
5410 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
5411 | direct++) { | |
5412 | if (filter->dlist[direct].name) | |
5413 | filter->dlist[direct] | |
5414 | .alist = access_list_lookup( | |
5415 | afi, | |
d62a17ae | 5416 | filter->dlist[direct] |
05c7a1cc QY |
5417 | .name); |
5418 | else | |
5419 | filter->dlist[direct].alist = | |
5420 | NULL; | |
d62a17ae | 5421 | } |
05c7a1cc | 5422 | } |
d62a17ae | 5423 | } |
5424 | #if ENABLE_BGP_VNC | |
5425 | vnc_prefix_list_update(bgp); | |
5426 | #endif | |
5427 | } | |
5428 | } | |
5429 | ||
5430 | /* Set prefix list to the peer. */ | |
5431 | int peer_prefix_list_set(struct peer *peer, afi_t afi, safi_t safi, int direct, | |
5432 | const char *name) | |
5433 | { | |
5434 | struct bgp_filter *filter; | |
5435 | struct peer_group *group; | |
5436 | struct listnode *node, *nnode; | |
5437 | ||
5438 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5439 | return BGP_ERR_INVALID_VALUE; | |
5440 | ||
5441 | filter = &peer->filter[afi][safi]; | |
5442 | ||
5443 | if (filter->dlist[direct].name) | |
5444 | return BGP_ERR_PEER_FILTER_CONFLICT; | |
5445 | ||
5446 | if (filter->plist[direct].name) | |
5447 | XFREE(MTYPE_BGP_FILTER_NAME, filter->plist[direct].name); | |
5448 | filter->plist[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5449 | filter->plist[direct].plist = prefix_list_lookup(afi, name); | |
5450 | ||
5451 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
5452 | peer_on_policy_change(peer, afi, safi, | |
5453 | (direct == FILTER_OUT) ? 1 : 0); | |
5454 | return 0; | |
5455 | } | |
5456 | ||
5457 | group = peer->group; | |
5458 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
5459 | filter = &peer->filter[afi][safi]; | |
5460 | ||
5461 | if (filter->plist[direct].name) | |
5462 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5463 | filter->plist[direct].name); | |
5464 | filter->plist[direct].name = | |
5465 | XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5466 | filter->plist[direct].plist = prefix_list_lookup(afi, name); | |
5467 | peer_on_policy_change(peer, afi, safi, | |
5468 | (direct == FILTER_OUT) ? 1 : 0); | |
5469 | } | |
5470 | return 0; | |
5471 | } | |
5472 | ||
5473 | int peer_prefix_list_unset(struct peer *peer, afi_t afi, safi_t safi, | |
5474 | int direct) | |
5475 | { | |
5476 | struct bgp_filter *filter; | |
5477 | struct bgp_filter *gfilter; | |
5478 | struct peer_group *group; | |
5479 | struct listnode *node, *nnode; | |
5480 | ||
5481 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5482 | return BGP_ERR_INVALID_VALUE; | |
5483 | ||
5484 | filter = &peer->filter[afi][safi]; | |
5485 | ||
5486 | /* apply peer-group filter */ | |
5487 | if (peer_group_active(peer)) { | |
5488 | gfilter = &peer->group->conf->filter[afi][safi]; | |
5489 | ||
5490 | if (gfilter->plist[direct].name) { | |
5491 | if (filter->plist[direct].name) | |
5492 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5493 | filter->plist[direct].name); | |
5494 | filter->plist[direct].name = | |
5495 | XSTRDUP(MTYPE_BGP_FILTER_NAME, | |
5496 | gfilter->plist[direct].name); | |
5497 | filter->plist[direct].plist = | |
5498 | gfilter->plist[direct].plist; | |
5499 | peer_on_policy_change(peer, afi, safi, | |
5500 | (direct == FILTER_OUT) ? 1 : 0); | |
5501 | return 0; | |
5502 | } | |
5503 | } | |
5504 | ||
5505 | if (filter->plist[direct].name) | |
5506 | XFREE(MTYPE_BGP_FILTER_NAME, filter->plist[direct].name); | |
5507 | filter->plist[direct].name = NULL; | |
5508 | filter->plist[direct].plist = NULL; | |
5509 | ||
5510 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
5511 | peer_on_policy_change(peer, afi, safi, | |
5512 | (direct == FILTER_OUT) ? 1 : 0); | |
5513 | return 0; | |
5514 | } | |
5515 | ||
5516 | group = peer->group; | |
5517 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
5518 | filter = &peer->filter[afi][safi]; | |
5519 | ||
5520 | if (filter->plist[direct].name) | |
5521 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5522 | filter->plist[direct].name); | |
5523 | filter->plist[direct].name = NULL; | |
5524 | filter->plist[direct].plist = NULL; | |
5525 | peer_on_policy_change(peer, afi, safi, | |
5526 | (direct == FILTER_OUT) ? 1 : 0); | |
5527 | } | |
5528 | ||
5529 | return 0; | |
5530 | } | |
5531 | ||
5532 | /* Update prefix-list list. */ | |
5533 | static void peer_prefix_list_update(struct prefix_list *plist) | |
5534 | { | |
5535 | struct listnode *mnode, *mnnode; | |
5536 | struct listnode *node, *nnode; | |
5537 | struct bgp *bgp; | |
5538 | struct peer *peer; | |
5539 | struct peer_group *group; | |
5540 | struct bgp_filter *filter; | |
5541 | afi_t afi; | |
5542 | safi_t safi; | |
5543 | int direct; | |
5544 | ||
5545 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
5546 | ||
5547 | /* | |
5548 | * Update the prefix-list on update groups. | |
5549 | */ | |
5550 | update_group_policy_update( | |
5551 | bgp, BGP_POLICY_PREFIX_LIST, | |
5552 | plist ? prefix_list_name(plist) : NULL, 0, 0); | |
5553 | ||
5554 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
05c7a1cc QY |
5555 | FOREACH_AFI_SAFI (afi, safi) { |
5556 | filter = &peer->filter[afi][safi]; | |
5557 | ||
5558 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
5559 | direct++) { | |
5560 | if (filter->plist[direct].name) | |
5561 | filter->plist[direct] | |
5562 | .plist = prefix_list_lookup( | |
5563 | afi, | |
d62a17ae | 5564 | filter->plist[direct] |
05c7a1cc QY |
5565 | .name); |
5566 | else | |
5567 | filter->plist[direct].plist = | |
5568 | NULL; | |
d62a17ae | 5569 | } |
05c7a1cc | 5570 | } |
d62a17ae | 5571 | } |
5572 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
05c7a1cc QY |
5573 | FOREACH_AFI_SAFI (afi, safi) { |
5574 | filter = &group->conf->filter[afi][safi]; | |
5575 | ||
5576 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
5577 | direct++) { | |
5578 | if (filter->plist[direct].name) | |
5579 | filter->plist[direct] | |
5580 | .plist = prefix_list_lookup( | |
5581 | afi, | |
d62a17ae | 5582 | filter->plist[direct] |
05c7a1cc QY |
5583 | .name); |
5584 | else | |
5585 | filter->plist[direct].plist = | |
5586 | NULL; | |
d62a17ae | 5587 | } |
05c7a1cc | 5588 | } |
d62a17ae | 5589 | } |
5590 | } | |
5591 | } | |
5592 | ||
5593 | int peer_aslist_set(struct peer *peer, afi_t afi, safi_t safi, int direct, | |
5594 | const char *name) | |
5595 | { | |
5596 | struct bgp_filter *filter; | |
5597 | struct peer_group *group; | |
5598 | struct listnode *node, *nnode; | |
5599 | ||
5600 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5601 | return BGP_ERR_INVALID_VALUE; | |
5602 | ||
5603 | filter = &peer->filter[afi][safi]; | |
5604 | ||
5605 | if (filter->aslist[direct].name) | |
5606 | XFREE(MTYPE_BGP_FILTER_NAME, filter->aslist[direct].name); | |
5607 | filter->aslist[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5608 | filter->aslist[direct].aslist = as_list_lookup(name); | |
5609 | ||
5610 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
5611 | peer_on_policy_change(peer, afi, safi, | |
5612 | (direct == FILTER_OUT) ? 1 : 0); | |
5613 | return 0; | |
5614 | } | |
5615 | ||
5616 | group = peer->group; | |
5617 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
5618 | filter = &peer->filter[afi][safi]; | |
5619 | ||
5620 | if (filter->aslist[direct].name) | |
5621 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5622 | filter->aslist[direct].name); | |
5623 | filter->aslist[direct].name = | |
5624 | XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5625 | filter->aslist[direct].aslist = as_list_lookup(name); | |
5626 | peer_on_policy_change(peer, afi, safi, | |
5627 | (direct == FILTER_OUT) ? 1 : 0); | |
5628 | } | |
5629 | return 0; | |
5630 | } | |
5631 | ||
5632 | int peer_aslist_unset(struct peer *peer, afi_t afi, safi_t safi, int direct) | |
5633 | { | |
5634 | struct bgp_filter *filter; | |
5635 | struct bgp_filter *gfilter; | |
5636 | struct peer_group *group; | |
5637 | struct listnode *node, *nnode; | |
5638 | ||
5639 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5640 | return BGP_ERR_INVALID_VALUE; | |
5641 | ||
5642 | filter = &peer->filter[afi][safi]; | |
5643 | ||
5644 | /* apply peer-group filter */ | |
5645 | if (peer_group_active(peer)) { | |
5646 | gfilter = &peer->group->conf->filter[afi][safi]; | |
5647 | ||
5648 | if (gfilter->aslist[direct].name) { | |
5649 | if (filter->aslist[direct].name) | |
5650 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5651 | filter->aslist[direct].name); | |
5652 | filter->aslist[direct].name = | |
5653 | XSTRDUP(MTYPE_BGP_FILTER_NAME, | |
5654 | gfilter->aslist[direct].name); | |
5655 | filter->aslist[direct].aslist = | |
5656 | gfilter->aslist[direct].aslist; | |
5657 | peer_on_policy_change(peer, afi, safi, | |
5658 | (direct == FILTER_OUT) ? 1 : 0); | |
5659 | return 0; | |
5660 | } | |
5661 | } | |
5662 | ||
5663 | if (filter->aslist[direct].name) | |
5664 | XFREE(MTYPE_BGP_FILTER_NAME, filter->aslist[direct].name); | |
5665 | filter->aslist[direct].name = NULL; | |
5666 | filter->aslist[direct].aslist = NULL; | |
5667 | ||
5668 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
5669 | peer_on_policy_change(peer, afi, safi, | |
5670 | (direct == FILTER_OUT) ? 1 : 0); | |
5671 | return 0; | |
5672 | } | |
5673 | ||
5674 | group = peer->group; | |
5675 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
5676 | filter = &peer->filter[afi][safi]; | |
5677 | ||
5678 | if (filter->aslist[direct].name) | |
5679 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5680 | filter->aslist[direct].name); | |
5681 | filter->aslist[direct].name = NULL; | |
5682 | filter->aslist[direct].aslist = NULL; | |
5683 | peer_on_policy_change(peer, afi, safi, | |
5684 | (direct == FILTER_OUT) ? 1 : 0); | |
5685 | } | |
5686 | ||
5687 | return 0; | |
5688 | } | |
5689 | ||
5690 | static void peer_aslist_update(const char *aslist_name) | |
5691 | { | |
5692 | afi_t afi; | |
5693 | safi_t safi; | |
5694 | int direct; | |
5695 | struct listnode *mnode, *mnnode; | |
5696 | struct listnode *node, *nnode; | |
5697 | struct bgp *bgp; | |
5698 | struct peer *peer; | |
5699 | struct peer_group *group; | |
5700 | struct bgp_filter *filter; | |
5701 | ||
5702 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
5703 | update_group_policy_update(bgp, BGP_POLICY_FILTER_LIST, | |
5704 | aslist_name, 0, 0); | |
5705 | ||
5706 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
05c7a1cc QY |
5707 | FOREACH_AFI_SAFI (afi, safi) { |
5708 | filter = &peer->filter[afi][safi]; | |
5709 | ||
5710 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
5711 | direct++) { | |
5712 | if (filter->aslist[direct].name) | |
5713 | filter->aslist[direct] | |
5714 | .aslist = as_list_lookup( | |
d62a17ae | 5715 | filter->aslist[direct] |
05c7a1cc QY |
5716 | .name); |
5717 | else | |
5718 | filter->aslist[direct].aslist = | |
5719 | NULL; | |
d62a17ae | 5720 | } |
05c7a1cc | 5721 | } |
d62a17ae | 5722 | } |
5723 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
05c7a1cc QY |
5724 | FOREACH_AFI_SAFI (afi, safi) { |
5725 | filter = &group->conf->filter[afi][safi]; | |
5726 | ||
5727 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
5728 | direct++) { | |
5729 | if (filter->aslist[direct].name) | |
5730 | filter->aslist[direct] | |
5731 | .aslist = as_list_lookup( | |
d62a17ae | 5732 | filter->aslist[direct] |
05c7a1cc QY |
5733 | .name); |
5734 | else | |
5735 | filter->aslist[direct].aslist = | |
5736 | NULL; | |
d62a17ae | 5737 | } |
05c7a1cc | 5738 | } |
d62a17ae | 5739 | } |
5740 | } | |
5741 | } | |
5742 | ||
5743 | static void peer_aslist_add(char *aslist_name) | |
5744 | { | |
5745 | peer_aslist_update(aslist_name); | |
5746 | route_map_notify_dependencies((char *)aslist_name, | |
5747 | RMAP_EVENT_ASLIST_ADDED); | |
5748 | } | |
5749 | ||
5750 | static void peer_aslist_del(const char *aslist_name) | |
5751 | { | |
5752 | peer_aslist_update(aslist_name); | |
5753 | route_map_notify_dependencies(aslist_name, RMAP_EVENT_ASLIST_DELETED); | |
5754 | } | |
5755 | ||
5756 | ||
5757 | int peer_route_map_set(struct peer *peer, afi_t afi, safi_t safi, int direct, | |
5758 | const char *name) | |
5759 | { | |
5760 | struct bgp_filter *filter; | |
5761 | struct peer_group *group; | |
5762 | struct listnode *node, *nnode; | |
5763 | ||
5764 | if (direct != RMAP_IN && direct != RMAP_OUT) | |
5765 | return BGP_ERR_INVALID_VALUE; | |
5766 | ||
5767 | filter = &peer->filter[afi][safi]; | |
5768 | ||
5769 | if (filter->map[direct].name) | |
5770 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); | |
5771 | ||
5772 | filter->map[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5773 | filter->map[direct].map = route_map_lookup_by_name(name); | |
5774 | ||
5775 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
5776 | peer_on_policy_change(peer, afi, safi, | |
5777 | (direct == RMAP_OUT) ? 1 : 0); | |
5778 | return 0; | |
5779 | } | |
5780 | ||
5781 | group = peer->group; | |
5782 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
5783 | filter = &peer->filter[afi][safi]; | |
5784 | ||
5785 | if (filter->map[direct].name) | |
5786 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); | |
5787 | filter->map[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5788 | filter->map[direct].map = route_map_lookup_by_name(name); | |
5789 | peer_on_policy_change(peer, afi, safi, | |
5790 | (direct == RMAP_OUT) ? 1 : 0); | |
5791 | } | |
5792 | return 0; | |
5793 | } | |
5794 | ||
5795 | /* Unset route-map from the peer. */ | |
5796 | int peer_route_map_unset(struct peer *peer, afi_t afi, safi_t safi, int direct) | |
5797 | { | |
5798 | struct bgp_filter *filter; | |
5799 | struct bgp_filter *gfilter; | |
5800 | struct peer_group *group; | |
5801 | struct listnode *node, *nnode; | |
5802 | ||
5803 | if (direct != RMAP_IN && direct != RMAP_OUT) | |
5804 | return BGP_ERR_INVALID_VALUE; | |
5805 | ||
5806 | filter = &peer->filter[afi][safi]; | |
5807 | ||
5808 | /* apply peer-group filter */ | |
5809 | if (peer_group_active(peer)) { | |
5810 | gfilter = &peer->group->conf->filter[afi][safi]; | |
5811 | ||
5812 | if (gfilter->map[direct].name) { | |
5813 | if (filter->map[direct].name) | |
5814 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5815 | filter->map[direct].name); | |
5816 | filter->map[direct].name = | |
5817 | XSTRDUP(MTYPE_BGP_FILTER_NAME, | |
5818 | gfilter->map[direct].name); | |
5819 | filter->map[direct].map = gfilter->map[direct].map; | |
5820 | peer_on_policy_change(peer, afi, safi, | |
5821 | (direct == RMAP_OUT) ? 1 : 0); | |
5822 | return 0; | |
5823 | } | |
5824 | } | |
5825 | ||
5826 | if (filter->map[direct].name) | |
5827 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); | |
5828 | filter->map[direct].name = NULL; | |
5829 | filter->map[direct].map = NULL; | |
5830 | ||
5831 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
5832 | peer_on_policy_change(peer, afi, safi, | |
5833 | (direct == RMAP_OUT) ? 1 : 0); | |
5834 | return 0; | |
5835 | } | |
5836 | ||
5837 | group = peer->group; | |
5838 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
5839 | filter = &peer->filter[afi][safi]; | |
5840 | ||
5841 | if (filter->map[direct].name) | |
5842 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); | |
5843 | filter->map[direct].name = NULL; | |
5844 | filter->map[direct].map = NULL; | |
5845 | peer_on_policy_change(peer, afi, safi, | |
5846 | (direct == RMAP_OUT) ? 1 : 0); | |
5847 | } | |
5848 | return 0; | |
5849 | } | |
5850 | ||
5851 | /* Set unsuppress-map to the peer. */ | |
5852 | int peer_unsuppress_map_set(struct peer *peer, afi_t afi, safi_t safi, | |
5853 | const char *name) | |
5854 | { | |
5855 | struct bgp_filter *filter; | |
5856 | struct peer_group *group; | |
5857 | struct listnode *node, *nnode; | |
5858 | ||
5859 | filter = &peer->filter[afi][safi]; | |
5860 | ||
5861 | if (filter->usmap.name) | |
5862 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
5863 | ||
5864 | filter->usmap.name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5865 | filter->usmap.map = route_map_lookup_by_name(name); | |
5866 | ||
5867 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
5868 | peer_on_policy_change(peer, afi, safi, 1); | |
5869 | return 0; | |
5870 | } | |
5871 | ||
5872 | group = peer->group; | |
5873 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
5874 | filter = &peer->filter[afi][safi]; | |
5875 | ||
5876 | if (filter->usmap.name) | |
5877 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
5878 | filter->usmap.name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5879 | filter->usmap.map = route_map_lookup_by_name(name); | |
5880 | peer_on_policy_change(peer, afi, safi, 1); | |
5881 | } | |
5882 | return 0; | |
5883 | } | |
5884 | ||
5885 | /* Unset route-map from the peer. */ | |
5886 | int peer_unsuppress_map_unset(struct peer *peer, afi_t afi, safi_t safi) | |
718e3744 | 5887 | { |
d62a17ae | 5888 | struct bgp_filter *filter; |
5889 | struct peer_group *group; | |
5890 | struct listnode *node, *nnode; | |
5891 | ||
5892 | filter = &peer->filter[afi][safi]; | |
718e3744 | 5893 | |
d62a17ae | 5894 | if (filter->usmap.name) |
5895 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
5896 | filter->usmap.name = NULL; | |
5897 | filter->usmap.map = NULL; | |
718e3744 | 5898 | |
d62a17ae | 5899 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
5900 | peer_on_policy_change(peer, afi, safi, 1); | |
5901 | return 0; | |
5902 | } | |
718e3744 | 5903 | |
d62a17ae | 5904 | group = peer->group; |
5905 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
5906 | filter = &peer->filter[afi][safi]; | |
718e3744 | 5907 | |
d62a17ae | 5908 | if (filter->usmap.name) |
5909 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
5910 | filter->usmap.name = NULL; | |
5911 | filter->usmap.map = NULL; | |
5912 | peer_on_policy_change(peer, afi, safi, 1); | |
5913 | } | |
5914 | return 0; | |
5915 | } | |
718e3744 | 5916 | |
d62a17ae | 5917 | int peer_maximum_prefix_set(struct peer *peer, afi_t afi, safi_t safi, |
d7c0a89a QY |
5918 | uint32_t max, uint8_t threshold, int warning, |
5919 | uint16_t restart) | |
d62a17ae | 5920 | { |
5921 | struct peer_group *group; | |
5922 | struct listnode *node, *nnode; | |
5923 | ||
5924 | SET_FLAG(peer->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX); | |
5925 | peer->pmax[afi][safi] = max; | |
5926 | peer->pmax_threshold[afi][safi] = threshold; | |
5927 | peer->pmax_restart[afi][safi] = restart; | |
5928 | if (warning) | |
5929 | SET_FLAG(peer->af_flags[afi][safi], | |
5930 | PEER_FLAG_MAX_PREFIX_WARNING); | |
5931 | else | |
5932 | UNSET_FLAG(peer->af_flags[afi][safi], | |
5933 | PEER_FLAG_MAX_PREFIX_WARNING); | |
5934 | ||
5935 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
5936 | group = peer->group; | |
5937 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
5938 | SET_FLAG(peer->af_flags[afi][safi], | |
5939 | PEER_FLAG_MAX_PREFIX); | |
5940 | peer->pmax[afi][safi] = max; | |
5941 | peer->pmax_threshold[afi][safi] = threshold; | |
5942 | peer->pmax_restart[afi][safi] = restart; | |
5943 | if (warning) | |
5944 | SET_FLAG(peer->af_flags[afi][safi], | |
5945 | PEER_FLAG_MAX_PREFIX_WARNING); | |
5946 | else | |
5947 | UNSET_FLAG(peer->af_flags[afi][safi], | |
5948 | PEER_FLAG_MAX_PREFIX_WARNING); | |
5949 | ||
5950 | if ((peer->status == Established) | |
5951 | && (peer->afc[afi][safi])) | |
5952 | bgp_maximum_prefix_overflow(peer, afi, safi, 1); | |
5953 | } | |
5954 | } else { | |
5955 | if ((peer->status == Established) && (peer->afc[afi][safi])) | |
5956 | bgp_maximum_prefix_overflow(peer, afi, safi, 1); | |
5957 | } | |
718e3744 | 5958 | |
d62a17ae | 5959 | return 0; |
5960 | } | |
718e3744 | 5961 | |
d62a17ae | 5962 | int peer_maximum_prefix_unset(struct peer *peer, afi_t afi, safi_t safi) |
5963 | { | |
5964 | struct peer_group *group; | |
5965 | struct listnode *node, *nnode; | |
5966 | ||
5967 | /* apply peer-group config */ | |
5968 | if (peer_group_active(peer)) { | |
5969 | if (CHECK_FLAG(peer->group->conf->af_flags[afi][safi], | |
5970 | PEER_FLAG_MAX_PREFIX)) | |
5971 | SET_FLAG(peer->af_flags[afi][safi], | |
5972 | PEER_FLAG_MAX_PREFIX); | |
5973 | else | |
5974 | UNSET_FLAG(peer->af_flags[afi][safi], | |
5975 | PEER_FLAG_MAX_PREFIX); | |
5976 | ||
5977 | if (CHECK_FLAG(peer->group->conf->af_flags[afi][safi], | |
5978 | PEER_FLAG_MAX_PREFIX_WARNING)) | |
5979 | SET_FLAG(peer->af_flags[afi][safi], | |
5980 | PEER_FLAG_MAX_PREFIX_WARNING); | |
5981 | else | |
5982 | UNSET_FLAG(peer->af_flags[afi][safi], | |
5983 | PEER_FLAG_MAX_PREFIX_WARNING); | |
5984 | ||
5985 | peer->pmax[afi][safi] = peer->group->conf->pmax[afi][safi]; | |
5986 | peer->pmax_threshold[afi][safi] = | |
5987 | peer->group->conf->pmax_threshold[afi][safi]; | |
5988 | peer->pmax_restart[afi][safi] = | |
5989 | peer->group->conf->pmax_restart[afi][safi]; | |
5990 | return 0; | |
5991 | } | |
718e3744 | 5992 | |
d62a17ae | 5993 | UNSET_FLAG(peer->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX); |
5994 | UNSET_FLAG(peer->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX_WARNING); | |
5995 | peer->pmax[afi][safi] = 0; | |
5996 | peer->pmax_threshold[afi][safi] = 0; | |
5997 | peer->pmax_restart[afi][safi] = 0; | |
5998 | ||
5999 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
6000 | return 0; | |
6001 | ||
6002 | group = peer->group; | |
6003 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
6004 | UNSET_FLAG(peer->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX); | |
6005 | UNSET_FLAG(peer->af_flags[afi][safi], | |
6006 | PEER_FLAG_MAX_PREFIX_WARNING); | |
6007 | peer->pmax[afi][safi] = 0; | |
6008 | peer->pmax_threshold[afi][safi] = 0; | |
6009 | peer->pmax_restart[afi][safi] = 0; | |
6010 | } | |
6011 | return 0; | |
718e3744 | 6012 | } |
6013 | ||
d62a17ae | 6014 | int is_ebgp_multihop_configured(struct peer *peer) |
718e3744 | 6015 | { |
d62a17ae | 6016 | struct peer_group *group; |
6017 | struct listnode *node, *nnode; | |
6018 | struct peer *peer1; | |
718e3744 | 6019 | |
d62a17ae | 6020 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
6021 | group = peer->group; | |
6022 | if ((peer_sort(peer) != BGP_PEER_IBGP) | |
6023 | && (group->conf->ttl != 1)) | |
6024 | return 1; | |
718e3744 | 6025 | |
d62a17ae | 6026 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer1)) { |
6027 | if ((peer_sort(peer1) != BGP_PEER_IBGP) | |
6028 | && (peer1->ttl != 1)) | |
6029 | return 1; | |
6030 | } | |
6031 | } else { | |
6032 | if ((peer_sort(peer) != BGP_PEER_IBGP) && (peer->ttl != 1)) | |
6033 | return 1; | |
6034 | } | |
6035 | return 0; | |
6036 | } | |
718e3744 | 6037 | |
d62a17ae | 6038 | /* Set # of hops between us and BGP peer. */ |
6039 | int peer_ttl_security_hops_set(struct peer *peer, int gtsm_hops) | |
6040 | { | |
6041 | struct peer_group *group; | |
6042 | struct listnode *node, *nnode; | |
6043 | int ret; | |
6044 | ||
6045 | zlog_debug("peer_ttl_security_hops_set: set gtsm_hops to %d for %s", | |
6046 | gtsm_hops, peer->host); | |
6047 | ||
6048 | /* We cannot configure ttl-security hops when ebgp-multihop is already | |
6049 | set. For non peer-groups, the check is simple. For peer-groups, | |
6050 | it's | |
6051 | slightly messy, because we need to check both the peer-group | |
6052 | structure | |
6053 | and all peer-group members for any trace of ebgp-multihop | |
6054 | configuration | |
6055 | before actually applying the ttl-security rules. Cisco really made a | |
6056 | mess of this configuration parameter, and OpenBGPD got it right. | |
6057 | */ | |
6058 | ||
6059 | if ((peer->gtsm_hops == 0) && (peer->sort != BGP_PEER_IBGP)) { | |
6060 | if (is_ebgp_multihop_configured(peer)) | |
6061 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
6062 | ||
6063 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
6064 | peer->gtsm_hops = gtsm_hops; | |
6065 | ||
6066 | /* Calling ebgp multihop also resets the session. | |
6067 | * On restart, NHT will get setup correctly as will the | |
6068 | * min & max ttls on the socket. The return value is | |
6069 | * irrelevant. | |
6070 | */ | |
6071 | ret = peer_ebgp_multihop_set(peer, MAXTTL); | |
6072 | ||
6073 | if (ret != 0) | |
6074 | return ret; | |
6075 | } else { | |
6076 | group = peer->group; | |
6077 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, | |
6078 | peer)) { | |
6079 | peer->gtsm_hops = group->conf->gtsm_hops; | |
6080 | ||
6081 | /* Calling ebgp multihop also resets the | |
6082 | * session. | |
6083 | * On restart, NHT will get setup correctly as | |
6084 | * will the | |
6085 | * min & max ttls on the socket. The return | |
6086 | * value is | |
6087 | * irrelevant. | |
6088 | */ | |
6089 | peer_ebgp_multihop_set(peer, MAXTTL); | |
6090 | } | |
6091 | } | |
6092 | } else { | |
6093 | /* Post the first gtsm setup or if its ibgp, maxttl setting | |
6094 | * isn't | |
6095 | * necessary, just set the minttl. | |
6096 | */ | |
6097 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
6098 | peer->gtsm_hops = gtsm_hops; | |
6099 | ||
6100 | if (peer->fd >= 0) | |
6101 | sockopt_minttl(peer->su.sa.sa_family, peer->fd, | |
6102 | MAXTTL + 1 - gtsm_hops); | |
6103 | if ((peer->status < Established) && peer->doppelganger | |
6104 | && (peer->doppelganger->fd >= 0)) | |
6105 | sockopt_minttl(peer->su.sa.sa_family, | |
6106 | peer->doppelganger->fd, | |
6107 | MAXTTL + 1 - gtsm_hops); | |
6108 | } else { | |
6109 | group = peer->group; | |
6110 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, | |
6111 | peer)) { | |
6112 | peer->gtsm_hops = group->conf->gtsm_hops; | |
6113 | ||
6114 | /* Change setting of existing peer | |
6115 | * established then change value (may break | |
6116 | * connectivity) | |
6117 | * not established yet (teardown session and | |
6118 | * restart) | |
6119 | * no session then do nothing (will get | |
6120 | * handled by next connection) | |
6121 | */ | |
6122 | if (peer->fd >= 0 && peer->gtsm_hops != 0) | |
6123 | sockopt_minttl( | |
6124 | peer->su.sa.sa_family, peer->fd, | |
6125 | MAXTTL + 1 - peer->gtsm_hops); | |
6126 | if ((peer->status < Established) | |
6127 | && peer->doppelganger | |
6128 | && (peer->doppelganger->fd >= 0)) | |
6129 | sockopt_minttl(peer->su.sa.sa_family, | |
6130 | peer->doppelganger->fd, | |
6131 | MAXTTL + 1 - gtsm_hops); | |
6132 | } | |
6133 | } | |
6134 | } | |
718e3744 | 6135 | |
d62a17ae | 6136 | return 0; |
718e3744 | 6137 | } |
6138 | ||
d62a17ae | 6139 | int peer_ttl_security_hops_unset(struct peer *peer) |
6140 | { | |
6141 | struct peer_group *group; | |
6142 | struct listnode *node, *nnode; | |
6143 | int ret = 0; | |
6144 | ||
6145 | zlog_debug("peer_ttl_security_hops_unset: set gtsm_hops to zero for %s", | |
6146 | peer->host); | |
6147 | ||
6148 | /* if a peer-group member, then reset to peer-group default rather than | |
6149 | * 0 */ | |
6150 | if (peer_group_active(peer)) | |
6151 | peer->gtsm_hops = peer->group->conf->gtsm_hops; | |
6152 | else | |
6153 | peer->gtsm_hops = 0; | |
6154 | ||
6155 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
6156 | /* Invoking ebgp_multihop_set will set the TTL back to the | |
6157 | * original | |
6158 | * value as well as restting the NHT and such. The session is | |
6159 | * reset. | |
6160 | */ | |
6161 | if (peer->sort == BGP_PEER_EBGP) | |
6162 | ret = peer_ebgp_multihop_unset(peer); | |
6163 | else { | |
6164 | if (peer->fd >= 0) | |
6165 | sockopt_minttl(peer->su.sa.sa_family, peer->fd, | |
6166 | 0); | |
6167 | ||
6168 | if ((peer->status < Established) && peer->doppelganger | |
6169 | && (peer->doppelganger->fd >= 0)) | |
6170 | sockopt_minttl(peer->su.sa.sa_family, | |
6171 | peer->doppelganger->fd, 0); | |
6172 | } | |
6173 | } else { | |
6174 | group = peer->group; | |
6175 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
6176 | peer->gtsm_hops = 0; | |
6177 | if (peer->sort == BGP_PEER_EBGP) | |
6178 | ret = peer_ebgp_multihop_unset(peer); | |
6179 | else { | |
6180 | if (peer->fd >= 0) | |
6181 | sockopt_minttl(peer->su.sa.sa_family, | |
6182 | peer->fd, 0); | |
6183 | ||
6184 | if ((peer->status < Established) | |
6185 | && peer->doppelganger | |
6186 | && (peer->doppelganger->fd >= 0)) | |
6187 | sockopt_minttl(peer->su.sa.sa_family, | |
6188 | peer->doppelganger->fd, | |
6189 | 0); | |
6190 | } | |
6191 | } | |
6192 | } | |
718e3744 | 6193 | |
d62a17ae | 6194 | return ret; |
6195 | } | |
6196 | ||
6197 | /* | |
6198 | * If peer clear is invoked in a loop for all peers on the BGP instance, | |
6199 | * it may end up freeing the doppelganger, and if this was the next node | |
6200 | * to the current node, we would end up accessing the freed next node. | |
6201 | * Pass along additional parameter which can be updated if next node | |
6202 | * is freed; only required when walking the peer list on BGP instance. | |
6203 | */ | |
6204 | int peer_clear(struct peer *peer, struct listnode **nnode) | |
6205 | { | |
6206 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_SHUTDOWN)) { | |
6207 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_PREFIX_OVERFLOW)) { | |
6208 | UNSET_FLAG(peer->sflags, PEER_STATUS_PREFIX_OVERFLOW); | |
6209 | if (peer->t_pmax_restart) { | |
6210 | BGP_TIMER_OFF(peer->t_pmax_restart); | |
6211 | if (bgp_debug_neighbor_events(peer)) | |
6212 | zlog_debug( | |
6213 | "%s Maximum-prefix restart timer canceled", | |
6214 | peer->host); | |
6215 | } | |
6216 | BGP_EVENT_ADD(peer, BGP_Start); | |
6217 | return 0; | |
6218 | } | |
6219 | ||
6220 | peer->v_start = BGP_INIT_START_TIMER; | |
6221 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
6222 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
6223 | BGP_NOTIFY_CEASE_ADMIN_RESET); | |
6224 | else | |
6225 | bgp_session_reset_safe(peer, nnode); | |
718e3744 | 6226 | } |
d62a17ae | 6227 | return 0; |
718e3744 | 6228 | } |
6b0655a2 | 6229 | |
d62a17ae | 6230 | int peer_clear_soft(struct peer *peer, afi_t afi, safi_t safi, |
6231 | enum bgp_clear_type stype) | |
718e3744 | 6232 | { |
d62a17ae | 6233 | struct peer_af *paf; |
718e3744 | 6234 | |
d62a17ae | 6235 | if (peer->status != Established) |
6236 | return 0; | |
718e3744 | 6237 | |
d62a17ae | 6238 | if (!peer->afc[afi][safi]) |
6239 | return BGP_ERR_AF_UNCONFIGURED; | |
718e3744 | 6240 | |
d62a17ae | 6241 | peer->rtt = sockopt_tcp_rtt(peer->fd); |
718e3744 | 6242 | |
d62a17ae | 6243 | if (stype == BGP_CLEAR_SOFT_OUT || stype == BGP_CLEAR_SOFT_BOTH) { |
6244 | /* Clear the "neighbor x.x.x.x default-originate" flag */ | |
6245 | paf = peer_af_find(peer, afi, safi); | |
6246 | if (paf && paf->subgroup | |
6247 | && CHECK_FLAG(paf->subgroup->sflags, | |
6248 | SUBGRP_STATUS_DEFAULT_ORIGINATE)) | |
6249 | UNSET_FLAG(paf->subgroup->sflags, | |
6250 | SUBGRP_STATUS_DEFAULT_ORIGINATE); | |
718e3744 | 6251 | |
d62a17ae | 6252 | bgp_announce_route(peer, afi, safi); |
6253 | } | |
718e3744 | 6254 | |
d62a17ae | 6255 | if (stype == BGP_CLEAR_SOFT_IN_ORF_PREFIX) { |
6256 | if (CHECK_FLAG(peer->af_cap[afi][safi], | |
6257 | PEER_CAP_ORF_PREFIX_SM_ADV) | |
6258 | && (CHECK_FLAG(peer->af_cap[afi][safi], | |
6259 | PEER_CAP_ORF_PREFIX_RM_RCV) | |
6260 | || CHECK_FLAG(peer->af_cap[afi][safi], | |
6261 | PEER_CAP_ORF_PREFIX_RM_OLD_RCV))) { | |
6262 | struct bgp_filter *filter = &peer->filter[afi][safi]; | |
d7c0a89a | 6263 | uint8_t prefix_type; |
d62a17ae | 6264 | |
6265 | if (CHECK_FLAG(peer->af_cap[afi][safi], | |
6266 | PEER_CAP_ORF_PREFIX_RM_RCV)) | |
6267 | prefix_type = ORF_TYPE_PREFIX; | |
6268 | else | |
6269 | prefix_type = ORF_TYPE_PREFIX_OLD; | |
6270 | ||
6271 | if (filter->plist[FILTER_IN].plist) { | |
6272 | if (CHECK_FLAG(peer->af_sflags[afi][safi], | |
6273 | PEER_STATUS_ORF_PREFIX_SEND)) | |
6274 | bgp_route_refresh_send( | |
6275 | peer, afi, safi, prefix_type, | |
6276 | REFRESH_DEFER, 1); | |
6277 | bgp_route_refresh_send(peer, afi, safi, | |
6278 | prefix_type, | |
6279 | REFRESH_IMMEDIATE, 0); | |
6280 | } else { | |
6281 | if (CHECK_FLAG(peer->af_sflags[afi][safi], | |
6282 | PEER_STATUS_ORF_PREFIX_SEND)) | |
6283 | bgp_route_refresh_send( | |
6284 | peer, afi, safi, prefix_type, | |
6285 | REFRESH_IMMEDIATE, 1); | |
6286 | else | |
6287 | bgp_route_refresh_send(peer, afi, safi, | |
6288 | 0, 0, 0); | |
6289 | } | |
6290 | return 0; | |
6291 | } | |
6292 | } | |
718e3744 | 6293 | |
d62a17ae | 6294 | if (stype == BGP_CLEAR_SOFT_IN || stype == BGP_CLEAR_SOFT_BOTH |
6295 | || stype == BGP_CLEAR_SOFT_IN_ORF_PREFIX) { | |
6296 | /* If neighbor has soft reconfiguration inbound flag. | |
6297 | Use Adj-RIB-In database. */ | |
6298 | if (CHECK_FLAG(peer->af_flags[afi][safi], | |
6299 | PEER_FLAG_SOFT_RECONFIG)) | |
6300 | bgp_soft_reconfig_in(peer, afi, safi); | |
6301 | else { | |
6302 | /* If neighbor has route refresh capability, send route | |
6303 | refresh | |
6304 | message to the peer. */ | |
6305 | if (CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_OLD_RCV) | |
6306 | || CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_NEW_RCV)) | |
6307 | bgp_route_refresh_send(peer, afi, safi, 0, 0, | |
6308 | 0); | |
6309 | else | |
6310 | return BGP_ERR_SOFT_RECONFIG_UNCONFIGURED; | |
6311 | } | |
6312 | } | |
6313 | return 0; | |
718e3744 | 6314 | } |
6315 | ||
d62a17ae | 6316 | /* Display peer uptime.*/ |
d7c0a89a | 6317 | char *peer_uptime(time_t uptime2, char *buf, size_t len, uint8_t use_json, |
d62a17ae | 6318 | json_object *json) |
6319 | { | |
6320 | time_t uptime1, epoch_tbuf; | |
6321 | struct tm *tm; | |
6322 | ||
6323 | /* Check buffer length. */ | |
6324 | if (len < BGP_UPTIME_LEN) { | |
6325 | if (!use_json) { | |
6326 | zlog_warn("peer_uptime (): buffer shortage %lu", | |
d7c0a89a | 6327 | (unsigned long)len); |
d62a17ae | 6328 | /* XXX: should return status instead of buf... */ |
6329 | snprintf(buf, len, "<error> "); | |
6330 | } | |
6331 | return buf; | |
6332 | } | |
6333 | ||
6334 | /* If there is no connection has been done before print `never'. */ | |
6335 | if (uptime2 == 0) { | |
6336 | if (use_json) { | |
6337 | json_object_string_add(json, "peerUptime", "never"); | |
6338 | json_object_int_add(json, "peerUptimeMsec", 0); | |
6339 | } else | |
6340 | snprintf(buf, len, "never"); | |
6341 | return buf; | |
6342 | } | |
718e3744 | 6343 | |
d62a17ae | 6344 | /* Get current time. */ |
6345 | uptime1 = bgp_clock(); | |
6346 | uptime1 -= uptime2; | |
6347 | tm = gmtime(&uptime1); | |
718e3744 | 6348 | |
d62a17ae | 6349 | if (uptime1 < ONE_DAY_SECOND) |
6350 | snprintf(buf, len, "%02d:%02d:%02d", tm->tm_hour, tm->tm_min, | |
6351 | tm->tm_sec); | |
6352 | else if (uptime1 < ONE_WEEK_SECOND) | |
6353 | snprintf(buf, len, "%dd%02dh%02dm", tm->tm_yday, tm->tm_hour, | |
6354 | tm->tm_min); | |
6355 | else if (uptime1 < ONE_YEAR_SECOND) | |
6356 | snprintf(buf, len, "%02dw%dd%02dh", tm->tm_yday / 7, | |
6357 | tm->tm_yday - ((tm->tm_yday / 7) * 7), tm->tm_hour); | |
6358 | else | |
6359 | snprintf(buf, len, "%02dy%02dw%dd", tm->tm_year - 70, | |
6360 | tm->tm_yday / 7, | |
6361 | tm->tm_yday - ((tm->tm_yday / 7) * 7)); | |
6362 | ||
6363 | if (use_json) { | |
6364 | epoch_tbuf = time(NULL) - uptime1; | |
6365 | json_object_string_add(json, "peerUptime", buf); | |
6366 | json_object_int_add(json, "peerUptimeMsec", uptime1 * 1000); | |
6367 | json_object_int_add(json, "peerUptimeEstablishedEpoch", | |
6368 | epoch_tbuf); | |
6369 | } | |
718e3744 | 6370 | |
d62a17ae | 6371 | return buf; |
718e3744 | 6372 | } |
6373 | ||
d62a17ae | 6374 | static void bgp_config_write_filter(struct vty *vty, struct peer *peer, |
2b791107 | 6375 | afi_t afi, safi_t safi) |
518f0eb1 | 6376 | { |
d62a17ae | 6377 | struct bgp_filter *filter; |
6378 | struct bgp_filter *gfilter = NULL; | |
6379 | char *addr; | |
6380 | int in = FILTER_IN; | |
6381 | int out = FILTER_OUT; | |
518f0eb1 | 6382 | |
d62a17ae | 6383 | addr = peer->host; |
6384 | filter = &peer->filter[afi][safi]; | |
518f0eb1 | 6385 | |
d62a17ae | 6386 | if (peer_group_active(peer)) |
6387 | gfilter = &peer->group->conf->filter[afi][safi]; | |
6388 | ||
6389 | /* distribute-list. */ | |
6390 | if (filter->dlist[in].name) | |
6391 | if (!gfilter || !gfilter->dlist[in].name | |
6392 | || strcmp(filter->dlist[in].name, gfilter->dlist[in].name) | |
6393 | != 0) { | |
2b791107 DL |
6394 | vty_out(vty, " neighbor %s distribute-list %s in\n", |
6395 | addr, filter->dlist[in].name); | |
d62a17ae | 6396 | } |
6b0655a2 | 6397 | |
d62a17ae | 6398 | if (filter->dlist[out].name && !gfilter) { |
2b791107 DL |
6399 | vty_out(vty, " neighbor %s distribute-list %s out\n", addr, |
6400 | filter->dlist[out].name); | |
d62a17ae | 6401 | } |
718e3744 | 6402 | |
d62a17ae | 6403 | /* prefix-list. */ |
6404 | if (filter->plist[in].name) | |
6405 | if (!gfilter || !gfilter->plist[in].name | |
6406 | || strcmp(filter->plist[in].name, gfilter->plist[in].name) | |
6407 | != 0) { | |
2b791107 DL |
6408 | vty_out(vty, " neighbor %s prefix-list %s in\n", addr, |
6409 | filter->plist[in].name); | |
d62a17ae | 6410 | } |
718e3744 | 6411 | |
2b791107 DL |
6412 | if (filter->plist[out].name) |
6413 | if (!gfilter || !gfilter->plist[out].name | |
6414 | || strcmp(filter->plist[out].name, gfilter->plist[out].name) | |
6415 | != 0) { | |
6416 | vty_out(vty, " neighbor %s prefix-list %s out\n", addr, | |
6417 | filter->plist[out].name); | |
6418 | } | |
718e3744 | 6419 | |
d62a17ae | 6420 | /* route-map. */ |
6421 | if (filter->map[RMAP_IN].name) | |
6422 | if (!gfilter || !gfilter->map[RMAP_IN].name | |
6423 | || strcmp(filter->map[RMAP_IN].name, | |
6424 | gfilter->map[RMAP_IN].name) | |
6425 | != 0) { | |
2b791107 DL |
6426 | vty_out(vty, " neighbor %s route-map %s in\n", addr, |
6427 | filter->map[RMAP_IN].name); | |
d62a17ae | 6428 | } |
518f0eb1 | 6429 | |
d62a17ae | 6430 | if (filter->map[RMAP_OUT].name) |
6431 | if (!gfilter || !gfilter->map[RMAP_OUT].name | |
6432 | || strcmp(filter->map[RMAP_OUT].name, | |
6433 | gfilter->map[RMAP_OUT].name) | |
6434 | != 0) { | |
2b791107 DL |
6435 | vty_out(vty, " neighbor %s route-map %s out\n", addr, |
6436 | filter->map[RMAP_OUT].name); | |
d62a17ae | 6437 | } |
718e3744 | 6438 | |
d62a17ae | 6439 | /* unsuppress-map */ |
6440 | if (filter->usmap.name && !gfilter) { | |
2b791107 DL |
6441 | vty_out(vty, " neighbor %s unsuppress-map %s\n", addr, |
6442 | filter->usmap.name); | |
d62a17ae | 6443 | } |
718e3744 | 6444 | |
d62a17ae | 6445 | /* filter-list. */ |
6446 | if (filter->aslist[in].name) | |
6447 | if (!gfilter || !gfilter->aslist[in].name | |
6448 | || strcmp(filter->aslist[in].name, gfilter->aslist[in].name) | |
6449 | != 0) { | |
2b791107 DL |
6450 | vty_out(vty, " neighbor %s filter-list %s in\n", addr, |
6451 | filter->aslist[in].name); | |
d62a17ae | 6452 | } |
718e3744 | 6453 | |
d62a17ae | 6454 | if (filter->aslist[out].name && !gfilter) { |
2b791107 DL |
6455 | vty_out(vty, " neighbor %s filter-list %s out\n", addr, |
6456 | filter->aslist[out].name); | |
d62a17ae | 6457 | } |
718e3744 | 6458 | } |
6459 | ||
d62a17ae | 6460 | /* BGP peer configuration display function. */ |
6461 | static void bgp_config_write_peer_global(struct vty *vty, struct bgp *bgp, | |
6462 | struct peer *peer) | |
6463 | { | |
6464 | struct peer *g_peer = NULL; | |
6465 | char buf[SU_ADDRSTRLEN]; | |
6466 | char *addr; | |
6467 | int if_pg_printed = FALSE; | |
6468 | int if_ras_printed = FALSE; | |
6469 | ||
6470 | /* Skip dynamic neighbors. */ | |
6471 | if (peer_dynamic_neighbor(peer)) | |
6472 | return; | |
6473 | ||
6474 | if (peer->conf_if) | |
6475 | addr = peer->conf_if; | |
6476 | else | |
6477 | addr = peer->host; | |
6478 | ||
6479 | /************************************ | |
6480 | ****** Global to the neighbor ****** | |
6481 | ************************************/ | |
6482 | if (peer->conf_if) { | |
6483 | if (CHECK_FLAG(peer->flags, PEER_FLAG_IFPEER_V6ONLY)) | |
6484 | vty_out(vty, " neighbor %s interface v6only", addr); | |
6485 | else | |
6486 | vty_out(vty, " neighbor %s interface", addr); | |
6487 | ||
6488 | if (peer_group_active(peer)) { | |
6489 | vty_out(vty, " peer-group %s", peer->group->name); | |
6490 | if_pg_printed = TRUE; | |
6491 | } else if (peer->as_type == AS_SPECIFIED) { | |
6492 | vty_out(vty, " remote-as %u", peer->as); | |
6493 | if_ras_printed = TRUE; | |
6494 | } else if (peer->as_type == AS_INTERNAL) { | |
6495 | vty_out(vty, " remote-as internal"); | |
6496 | if_ras_printed = TRUE; | |
6497 | } else if (peer->as_type == AS_EXTERNAL) { | |
6498 | vty_out(vty, " remote-as external"); | |
6499 | if_ras_printed = TRUE; | |
6500 | } | |
718e3744 | 6501 | |
d62a17ae | 6502 | vty_out(vty, "\n"); |
6503 | } | |
718e3744 | 6504 | |
d62a17ae | 6505 | /* remote-as and peer-group */ |
6506 | /* peer is a member of a peer-group */ | |
6507 | if (peer_group_active(peer)) { | |
6508 | g_peer = peer->group->conf; | |
6509 | ||
6510 | if (g_peer->as_type == AS_UNSPECIFIED && !if_ras_printed) { | |
6511 | if (peer->as_type == AS_SPECIFIED) { | |
6512 | vty_out(vty, " neighbor %s remote-as %u\n", | |
6513 | addr, peer->as); | |
6514 | } else if (peer->as_type == AS_INTERNAL) { | |
6515 | vty_out(vty, | |
6516 | " neighbor %s remote-as internal\n", | |
6517 | addr); | |
6518 | } else if (peer->as_type == AS_EXTERNAL) { | |
6519 | vty_out(vty, | |
6520 | " neighbor %s remote-as external\n", | |
6521 | addr); | |
6522 | } | |
6523 | } | |
718e3744 | 6524 | |
d62a17ae | 6525 | /* For swpX peers we displayed the peer-group |
6526 | * via 'neighbor swpX interface peer-group WORD' */ | |
6527 | if (!if_pg_printed) | |
6528 | vty_out(vty, " neighbor %s peer-group %s\n", addr, | |
6529 | peer->group->name); | |
6530 | } | |
718e3744 | 6531 | |
d62a17ae | 6532 | /* peer is NOT a member of a peer-group */ |
6533 | else { | |
6534 | /* peer is a peer-group, declare the peer-group */ | |
6535 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
6536 | vty_out(vty, " neighbor %s peer-group\n", addr); | |
6537 | } | |
6b0655a2 | 6538 | |
d62a17ae | 6539 | if (!if_ras_printed) { |
6540 | if (peer->as_type == AS_SPECIFIED) { | |
6541 | vty_out(vty, " neighbor %s remote-as %u\n", | |
6542 | addr, peer->as); | |
6543 | } else if (peer->as_type == AS_INTERNAL) { | |
6544 | vty_out(vty, | |
6545 | " neighbor %s remote-as internal\n", | |
6546 | addr); | |
6547 | } else if (peer->as_type == AS_EXTERNAL) { | |
6548 | vty_out(vty, | |
6549 | " neighbor %s remote-as external\n", | |
6550 | addr); | |
6551 | } | |
6552 | } | |
6553 | } | |
718e3744 | 6554 | |
d62a17ae | 6555 | /* local-as */ |
6556 | if (peer->change_local_as) { | |
6557 | if (!peer_group_active(peer) | |
6558 | || peer->change_local_as != g_peer->change_local_as | |
6559 | || (CHECK_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND) | |
6560 | != CHECK_FLAG(g_peer->flags, | |
6561 | PEER_FLAG_LOCAL_AS_NO_PREPEND)) | |
6562 | || (CHECK_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS) | |
6563 | != CHECK_FLAG(g_peer->flags, | |
6564 | PEER_FLAG_LOCAL_AS_REPLACE_AS))) { | |
6565 | vty_out(vty, " neighbor %s local-as %u%s%s\n", addr, | |
6566 | peer->change_local_as, | |
6567 | CHECK_FLAG(peer->flags, | |
6568 | PEER_FLAG_LOCAL_AS_NO_PREPEND) | |
6569 | ? " no-prepend" | |
6570 | : "", | |
6571 | CHECK_FLAG(peer->flags, | |
6572 | PEER_FLAG_LOCAL_AS_REPLACE_AS) | |
6573 | ? " replace-as" | |
6574 | : ""); | |
6575 | } | |
5f9adb5d | 6576 | } |
5f9adb5d | 6577 | |
d62a17ae | 6578 | /* description */ |
6579 | if (peer->desc) { | |
6580 | vty_out(vty, " neighbor %s description %s\n", addr, peer->desc); | |
6581 | } | |
fa411a21 | 6582 | |
d62a17ae | 6583 | /* shutdown */ |
6584 | if (CHECK_FLAG(peer->flags, PEER_FLAG_SHUTDOWN)) { | |
6585 | if (!peer_group_active(peer) | |
6586 | || !CHECK_FLAG(g_peer->flags, PEER_FLAG_SHUTDOWN) | |
6587 | || peer->tx_shutdown_message) { | |
6588 | if (peer->tx_shutdown_message) | |
6589 | vty_out(vty, | |
6590 | " neighbor %s shutdown message %s\n", | |
6591 | addr, peer->tx_shutdown_message); | |
6592 | else | |
6593 | vty_out(vty, " neighbor %s shutdown\n", addr); | |
6594 | } | |
6595 | } | |
fa411a21 | 6596 | |
d62a17ae | 6597 | /* bfd */ |
6598 | if (peer->bfd_info) { | |
6599 | if (!peer_group_active(peer) || !g_peer->bfd_info) { | |
6600 | bgp_bfd_peer_config_write(vty, peer, addr); | |
6601 | } | |
6602 | } | |
e5cc509c | 6603 | |
d62a17ae | 6604 | /* password */ |
6605 | if (peer->password) { | |
6606 | if (!peer_group_active(peer) || !g_peer->password | |
6607 | || strcmp(peer->password, g_peer->password) != 0) { | |
6608 | vty_out(vty, " neighbor %s password %s\n", addr, | |
6609 | peer->password); | |
6610 | } | |
6611 | } | |
fa411a21 | 6612 | |
d62a17ae | 6613 | /* neighbor solo */ |
6614 | if (CHECK_FLAG(peer->flags, PEER_FLAG_LONESOUL)) { | |
6615 | if (!peer_group_active(peer)) { | |
6616 | vty_out(vty, " neighbor %s solo\n", addr); | |
6617 | } | |
6618 | } | |
fa411a21 | 6619 | |
d62a17ae | 6620 | /* BGP port */ |
6621 | if (peer->port != BGP_PORT_DEFAULT) { | |
6622 | vty_out(vty, " neighbor %s port %d\n", addr, peer->port); | |
6623 | } | |
e5cc509c | 6624 | |
d62a17ae | 6625 | /* Local interface name */ |
6626 | if (peer->ifname) { | |
6627 | vty_out(vty, " neighbor %s interface %s\n", addr, peer->ifname); | |
e5cc509c | 6628 | } |
fa411a21 | 6629 | |
d62a17ae | 6630 | /* passive */ |
6631 | if (CHECK_FLAG(peer->flags, PEER_FLAG_PASSIVE)) { | |
6632 | if (!peer_group_active(peer) | |
6633 | || !CHECK_FLAG(g_peer->flags, PEER_FLAG_PASSIVE)) { | |
6634 | vty_out(vty, " neighbor %s passive\n", addr); | |
6635 | } | |
e5cc509c | 6636 | } |
1ff9a340 | 6637 | |
d62a17ae | 6638 | /* ebgp-multihop */ |
6639 | if (peer->sort != BGP_PEER_IBGP && peer->ttl != 1 | |
6640 | && !(peer->gtsm_hops != 0 && peer->ttl == MAXTTL)) { | |
6641 | if (!peer_group_active(peer) || g_peer->ttl != peer->ttl) { | |
6642 | vty_out(vty, " neighbor %s ebgp-multihop %d\n", addr, | |
6643 | peer->ttl); | |
6644 | } | |
fa411a21 | 6645 | } |
fa411a21 | 6646 | |
d62a17ae | 6647 | /* ttl-security hops */ |
6648 | if (peer->gtsm_hops != 0) { | |
6649 | if (!peer_group_active(peer) | |
6650 | || g_peer->gtsm_hops != peer->gtsm_hops) { | |
6651 | vty_out(vty, " neighbor %s ttl-security hops %d\n", | |
6652 | addr, peer->gtsm_hops); | |
6653 | } | |
6654 | } | |
6655 | ||
6656 | /* disable-connected-check */ | |
6657 | if (CHECK_FLAG(peer->flags, PEER_FLAG_DISABLE_CONNECTED_CHECK)) { | |
6658 | if (!peer_group_active(peer) | |
6659 | || !CHECK_FLAG(g_peer->flags, | |
6660 | PEER_FLAG_DISABLE_CONNECTED_CHECK)) { | |
6661 | vty_out(vty, " neighbor %s disable-connected-check\n", | |
6662 | addr); | |
6663 | } | |
6664 | } | |
6665 | ||
6666 | /* update-source */ | |
6667 | if (peer->update_if) { | |
6668 | if (!peer_group_active(peer) || !g_peer->update_if | |
6669 | || strcmp(g_peer->update_if, peer->update_if) != 0) { | |
6670 | vty_out(vty, " neighbor %s update-source %s\n", addr, | |
6671 | peer->update_if); | |
6672 | } | |
6673 | } | |
6674 | if (peer->update_source) { | |
6675 | if (!peer_group_active(peer) || !g_peer->update_source | |
6676 | || sockunion_cmp(g_peer->update_source, peer->update_source) | |
6677 | != 0) { | |
6678 | vty_out(vty, " neighbor %s update-source %s\n", addr, | |
6679 | sockunion2str(peer->update_source, buf, | |
6680 | SU_ADDRSTRLEN)); | |
6681 | } | |
6682 | } | |
6683 | ||
6684 | /* advertisement-interval */ | |
6685 | if (CHECK_FLAG(peer->config, PEER_CONFIG_ROUTEADV) | |
6686 | && ((!peer_group_active(peer) | |
6687 | && peer->v_routeadv != BGP_DEFAULT_EBGP_ROUTEADV) | |
6688 | || (peer_group_active(peer) | |
6689 | && peer->v_routeadv != g_peer->v_routeadv))) { | |
6690 | vty_out(vty, " neighbor %s advertisement-interval %u\n", addr, | |
6691 | peer->v_routeadv); | |
6692 | } | |
6693 | ||
6694 | /* timers */ | |
d25e4efc | 6695 | if ((PEER_OR_GROUP_TIMER_SET(peer)) |
d62a17ae | 6696 | && ((!peer_group_active(peer) |
6697 | && (peer->keepalive != BGP_DEFAULT_KEEPALIVE | |
6698 | || peer->holdtime != BGP_DEFAULT_HOLDTIME)) | |
6699 | || (peer_group_active(peer) | |
6700 | && (peer->keepalive != g_peer->keepalive | |
6701 | || peer->holdtime != g_peer->holdtime)))) { | |
6702 | vty_out(vty, " neighbor %s timers %u %u\n", addr, | |
6703 | peer->keepalive, peer->holdtime); | |
6704 | } | |
6705 | ||
6706 | if (CHECK_FLAG(peer->config, PEER_CONFIG_CONNECT) | |
6707 | && ((!peer_group_active(peer) | |
6708 | && peer->connect != BGP_DEFAULT_CONNECT_RETRY) | |
6709 | || (peer_group_active(peer) | |
6710 | && peer->connect != g_peer->connect))) | |
6b0655a2 | 6711 | |
718e3744 | 6712 | { |
d62a17ae | 6713 | vty_out(vty, " neighbor %s timers connect %u\n", addr, |
6714 | peer->connect); | |
718e3744 | 6715 | } |
6b0655a2 | 6716 | |
d62a17ae | 6717 | /* capability dynamic */ |
6718 | if (CHECK_FLAG(peer->flags, PEER_FLAG_DYNAMIC_CAPABILITY)) { | |
6719 | if (!peer_group_active(peer) | |
6720 | || !CHECK_FLAG(g_peer->flags, | |
6721 | PEER_FLAG_DYNAMIC_CAPABILITY)) { | |
6722 | vty_out(vty, " neighbor %s capability dynamic\n", addr); | |
6723 | } | |
6724 | } | |
718e3744 | 6725 | |
d62a17ae | 6726 | /* capability extended-nexthop */ |
6727 | if (peer->ifp && !CHECK_FLAG(peer->flags, PEER_FLAG_CAPABILITY_ENHE)) { | |
6728 | if (!peer_group_active(peer) | |
6729 | || !CHECK_FLAG(g_peer->flags, PEER_FLAG_CAPABILITY_ENHE)) { | |
6730 | vty_out(vty, | |
6731 | " no neighbor %s capability extended-nexthop\n", | |
6732 | addr); | |
6733 | } | |
6734 | } | |
718e3744 | 6735 | |
d62a17ae | 6736 | if (!peer->ifp && CHECK_FLAG(peer->flags, PEER_FLAG_CAPABILITY_ENHE)) { |
6737 | if (!peer_group_active(peer) | |
6738 | || !CHECK_FLAG(g_peer->flags, PEER_FLAG_CAPABILITY_ENHE)) { | |
6739 | vty_out(vty, | |
6740 | " neighbor %s capability extended-nexthop\n", | |
6741 | addr); | |
6742 | } | |
6743 | } | |
6744 | ||
6745 | /* dont-capability-negotiation */ | |
6746 | if (CHECK_FLAG(peer->flags, PEER_FLAG_DONT_CAPABILITY)) { | |
6747 | if (!peer_group_active(peer) | |
6748 | || !CHECK_FLAG(g_peer->flags, PEER_FLAG_DONT_CAPABILITY)) { | |
6749 | vty_out(vty, " neighbor %s dont-capability-negotiate\n", | |
6750 | addr); | |
6751 | } | |
6752 | } | |
6753 | ||
6754 | /* override-capability */ | |
6755 | if (CHECK_FLAG(peer->flags, PEER_FLAG_OVERRIDE_CAPABILITY)) { | |
6756 | if (!peer_group_active(peer) | |
6757 | || !CHECK_FLAG(g_peer->flags, | |
6758 | PEER_FLAG_OVERRIDE_CAPABILITY)) { | |
6759 | vty_out(vty, " neighbor %s override-capability\n", | |
6760 | addr); | |
6761 | } | |
6762 | } | |
6763 | ||
6764 | /* strict-capability-match */ | |
6765 | if (CHECK_FLAG(peer->flags, PEER_FLAG_STRICT_CAP_MATCH)) { | |
6766 | if (!peer_group_active(peer) | |
6767 | || !CHECK_FLAG(g_peer->flags, PEER_FLAG_STRICT_CAP_MATCH)) { | |
6768 | vty_out(vty, " neighbor %s strict-capability-match\n", | |
6769 | addr); | |
6770 | } | |
6771 | } | |
0b960b4d DW |
6772 | } |
6773 | ||
0b960b4d | 6774 | /* BGP peer configuration display function. */ |
d62a17ae | 6775 | static void bgp_config_write_peer_af(struct vty *vty, struct bgp *bgp, |
2b791107 | 6776 | struct peer *peer, afi_t afi, safi_t safi) |
d62a17ae | 6777 | { |
6778 | struct peer *g_peer = NULL; | |
6779 | char *addr; | |
6780 | ||
6781 | /* Skip dynamic neighbors. */ | |
6782 | if (peer_dynamic_neighbor(peer)) | |
6783 | return; | |
6784 | ||
6785 | if (peer->conf_if) | |
6786 | addr = peer->conf_if; | |
6787 | else | |
6788 | addr = peer->host; | |
6789 | ||
6790 | /************************************ | |
6791 | ****** Per AF to the neighbor ****** | |
6792 | ************************************/ | |
6793 | if (peer_group_active(peer)) { | |
6794 | g_peer = peer->group->conf; | |
6795 | ||
6796 | /* If the peer-group is active but peer is not, print a 'no | |
6797 | * activate' */ | |
6798 | if (g_peer->afc[afi][safi] && !peer->afc[afi][safi]) { | |
2b791107 | 6799 | vty_out(vty, " no neighbor %s activate\n", addr); |
d62a17ae | 6800 | } |
6801 | ||
6802 | /* If the peer-group is not active but peer is, print an | |
6803 | 'activate' */ | |
6804 | else if (!g_peer->afc[afi][safi] && peer->afc[afi][safi]) { | |
2b791107 | 6805 | vty_out(vty, " neighbor %s activate\n", addr); |
d62a17ae | 6806 | } |
6807 | } else { | |
6808 | if (peer->afc[afi][safi]) { | |
6809 | if ((afi == AFI_IP) && (safi == SAFI_UNICAST)) { | |
6810 | if (bgp_flag_check(bgp, | |
6811 | BGP_FLAG_NO_DEFAULT_IPV4)) { | |
2b791107 | 6812 | vty_out(vty, " neighbor %s activate\n", |
d62a17ae | 6813 | addr); |
6814 | } | |
6815 | } else | |
2b791107 | 6816 | vty_out(vty, " neighbor %s activate\n", addr); |
d62a17ae | 6817 | } else { |
6818 | if ((afi == AFI_IP) && (safi == SAFI_UNICAST)) { | |
6819 | if (!bgp_flag_check(bgp, | |
6820 | BGP_FLAG_NO_DEFAULT_IPV4)) { | |
2b791107 | 6821 | vty_out(vty, |
d62a17ae | 6822 | " no neighbor %s activate\n", |
6823 | addr); | |
6824 | } | |
6825 | } | |
6826 | } | |
6827 | } | |
6828 | ||
6829 | /* addpath TX knobs */ | |
6830 | if (peergroup_af_flag_check(peer, afi, safi, | |
6831 | PEER_FLAG_ADDPATH_TX_ALL_PATHS)) { | |
2b791107 | 6832 | vty_out(vty, " neighbor %s addpath-tx-all-paths\n", addr); |
d62a17ae | 6833 | } |
6834 | ||
6835 | if (peergroup_af_flag_check(peer, afi, safi, | |
6836 | PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS)) { | |
2b791107 DL |
6837 | vty_out(vty, " neighbor %s addpath-tx-bestpath-per-AS\n", |
6838 | addr); | |
d62a17ae | 6839 | } |
6840 | ||
6841 | /* ORF capability. */ | |
6842 | if (peergroup_af_flag_check(peer, afi, safi, PEER_FLAG_ORF_PREFIX_SM) | |
6843 | || peergroup_af_flag_check(peer, afi, safi, | |
6844 | PEER_FLAG_ORF_PREFIX_RM)) { | |
2b791107 | 6845 | vty_out(vty, " neighbor %s capability orf prefix-list", addr); |
d62a17ae | 6846 | |
6847 | if (peergroup_af_flag_check(peer, afi, safi, | |
6848 | PEER_FLAG_ORF_PREFIX_SM) | |
6849 | && peergroup_af_flag_check(peer, afi, safi, | |
6850 | PEER_FLAG_ORF_PREFIX_RM)) | |
6851 | vty_out(vty, " both"); | |
6852 | else if (peergroup_af_flag_check(peer, afi, safi, | |
6853 | PEER_FLAG_ORF_PREFIX_SM)) | |
6854 | vty_out(vty, " send"); | |
6855 | else | |
6856 | vty_out(vty, " receive"); | |
6857 | vty_out(vty, "\n"); | |
6858 | } | |
6859 | ||
6860 | /* Route reflector client. */ | |
6861 | if (peergroup_af_flag_check(peer, afi, safi, | |
6862 | PEER_FLAG_REFLECTOR_CLIENT)) { | |
2b791107 | 6863 | vty_out(vty, " neighbor %s route-reflector-client\n", addr); |
d62a17ae | 6864 | } |
6865 | ||
6866 | /* next-hop-self force */ | |
6867 | if (peergroup_af_flag_check(peer, afi, safi, | |
6868 | PEER_FLAG_FORCE_NEXTHOP_SELF)) { | |
2b791107 | 6869 | vty_out(vty, " neighbor %s next-hop-self force\n", addr); |
d62a17ae | 6870 | } |
6871 | ||
6872 | /* next-hop-self */ | |
6873 | if (peergroup_af_flag_check(peer, afi, safi, PEER_FLAG_NEXTHOP_SELF)) { | |
2b791107 | 6874 | vty_out(vty, " neighbor %s next-hop-self\n", addr); |
d62a17ae | 6875 | } |
6876 | ||
6877 | /* remove-private-AS */ | |
6878 | if (peergroup_af_flag_check(peer, afi, safi, | |
6879 | PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE)) { | |
2b791107 | 6880 | vty_out(vty, " neighbor %s remove-private-AS all replace-AS\n", |
d62a17ae | 6881 | addr); |
6882 | } | |
6883 | ||
6884 | else if (peergroup_af_flag_check(peer, afi, safi, | |
6885 | PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE)) { | |
2b791107 DL |
6886 | vty_out(vty, " neighbor %s remove-private-AS replace-AS\n", |
6887 | addr); | |
d62a17ae | 6888 | } |
6889 | ||
6890 | else if (peergroup_af_flag_check(peer, afi, safi, | |
6891 | PEER_FLAG_REMOVE_PRIVATE_AS_ALL)) { | |
2b791107 | 6892 | vty_out(vty, " neighbor %s remove-private-AS all\n", addr); |
d62a17ae | 6893 | } |
6894 | ||
6895 | else if (peergroup_af_flag_check(peer, afi, safi, | |
6896 | PEER_FLAG_REMOVE_PRIVATE_AS)) { | |
2b791107 | 6897 | vty_out(vty, " neighbor %s remove-private-AS\n", addr); |
d62a17ae | 6898 | } |
6899 | ||
6900 | /* as-override */ | |
6901 | if (peergroup_af_flag_check(peer, afi, safi, PEER_FLAG_AS_OVERRIDE)) { | |
2b791107 | 6902 | vty_out(vty, " neighbor %s as-override\n", addr); |
d62a17ae | 6903 | } |
6904 | ||
6905 | /* send-community print. */ | |
6906 | if (bgp_option_check(BGP_OPT_CONFIG_CISCO)) { | |
6907 | if (peergroup_af_flag_check(peer, afi, safi, | |
6908 | PEER_FLAG_SEND_COMMUNITY) | |
6909 | && peergroup_af_flag_check(peer, afi, safi, | |
6910 | PEER_FLAG_SEND_EXT_COMMUNITY) | |
6911 | && peergroup_af_flag_check( | |
6912 | peer, afi, safi, | |
6913 | PEER_FLAG_SEND_LARGE_COMMUNITY)) { | |
2b791107 DL |
6914 | vty_out(vty, " neighbor %s send-community all\n", |
6915 | addr); | |
d62a17ae | 6916 | } else if (peergroup_af_flag_check( |
6917 | peer, afi, safi, | |
6918 | PEER_FLAG_SEND_LARGE_COMMUNITY)) { | |
2b791107 DL |
6919 | vty_out(vty, " neighbor %s send-community large\n", |
6920 | addr); | |
d62a17ae | 6921 | } else if (peergroup_af_flag_check( |
6922 | peer, afi, safi, | |
6923 | PEER_FLAG_SEND_EXT_COMMUNITY)) { | |
2b791107 | 6924 | vty_out(vty, " neighbor %s send-community extended\n", |
d62a17ae | 6925 | addr); |
6926 | } else if (peergroup_af_flag_check(peer, afi, safi, | |
6927 | PEER_FLAG_SEND_COMMUNITY)) { | |
2b791107 | 6928 | vty_out(vty, " neighbor %s send-community\n", addr); |
d62a17ae | 6929 | } |
6930 | } else { | |
6931 | if (!peer_af_flag_check(peer, afi, safi, | |
6932 | PEER_FLAG_SEND_COMMUNITY) | |
996c9314 LB |
6933 | && (!g_peer || peer_af_flag_check(g_peer, afi, safi, |
6934 | PEER_FLAG_SEND_COMMUNITY)) | |
d62a17ae | 6935 | && !peer_af_flag_check(peer, afi, safi, |
6936 | PEER_FLAG_SEND_EXT_COMMUNITY) | |
6937 | && (!g_peer | |
6938 | || peer_af_flag_check(g_peer, afi, safi, | |
6939 | PEER_FLAG_SEND_EXT_COMMUNITY)) | |
6940 | && !peer_af_flag_check(peer, afi, safi, | |
6941 | PEER_FLAG_SEND_LARGE_COMMUNITY) | |
996c9314 LB |
6942 | && (!g_peer || peer_af_flag_check( |
6943 | g_peer, afi, safi, | |
6944 | PEER_FLAG_SEND_LARGE_COMMUNITY))) { | |
2b791107 DL |
6945 | vty_out(vty, " no neighbor %s send-community all\n", |
6946 | addr); | |
d62a17ae | 6947 | } else { |
6948 | if (!peer_af_flag_check(peer, afi, safi, | |
6949 | PEER_FLAG_SEND_LARGE_COMMUNITY) | |
6950 | && (!g_peer | |
6951 | || peer_af_flag_check( | |
6952 | g_peer, afi, safi, | |
6953 | PEER_FLAG_SEND_LARGE_COMMUNITY))) { | |
2b791107 | 6954 | vty_out(vty, |
d62a17ae | 6955 | " no neighbor %s send-community large\n", |
6956 | addr); | |
6957 | } | |
6958 | ||
6959 | if (!peer_af_flag_check(peer, afi, safi, | |
6960 | PEER_FLAG_SEND_EXT_COMMUNITY) | |
6961 | && (!g_peer | |
6962 | || peer_af_flag_check( | |
6963 | g_peer, afi, safi, | |
6964 | PEER_FLAG_SEND_EXT_COMMUNITY))) { | |
2b791107 | 6965 | vty_out(vty, |
d62a17ae | 6966 | " no neighbor %s send-community extended\n", |
6967 | addr); | |
6968 | } | |
6969 | ||
6970 | if (!peer_af_flag_check(peer, afi, safi, | |
6971 | PEER_FLAG_SEND_COMMUNITY) | |
996c9314 LB |
6972 | && (!g_peer || peer_af_flag_check( |
6973 | g_peer, afi, safi, | |
6974 | PEER_FLAG_SEND_COMMUNITY))) { | |
2b791107 | 6975 | vty_out(vty, |
d62a17ae | 6976 | " no neighbor %s send-community\n", |
6977 | addr); | |
6978 | } | |
6979 | } | |
6980 | } | |
6981 | ||
6982 | /* Default information */ | |
6983 | if (peergroup_af_flag_check(peer, afi, safi, | |
6984 | PEER_FLAG_DEFAULT_ORIGINATE) | |
6985 | || (g_peer | |
6986 | && ((peer->default_rmap[afi][safi].name | |
6987 | && !g_peer->default_rmap[afi][safi].name) | |
6988 | || (!peer->default_rmap[afi][safi].name | |
6989 | && g_peer->default_rmap[afi][safi].name) | |
6990 | || (peer->default_rmap[afi][safi].name | |
6991 | && strcmp(peer->default_rmap[afi][safi].name, | |
6992 | g_peer->default_rmap[afi][safi].name))))) { | |
2b791107 | 6993 | vty_out(vty, " neighbor %s default-originate", addr); |
d62a17ae | 6994 | if (peer->default_rmap[afi][safi].name) |
6995 | vty_out(vty, " route-map %s", | |
6996 | peer->default_rmap[afi][safi].name); | |
6997 | vty_out(vty, "\n"); | |
6998 | } | |
6999 | ||
7000 | /* Soft reconfiguration inbound. */ | |
7001 | if (peergroup_af_flag_check(peer, afi, safi, PEER_FLAG_SOFT_RECONFIG)) { | |
2b791107 DL |
7002 | vty_out(vty, " neighbor %s soft-reconfiguration inbound\n", |
7003 | addr); | |
d62a17ae | 7004 | } |
7005 | ||
7006 | /* maximum-prefix. */ | |
7007 | if (CHECK_FLAG(peer->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX)) | |
7008 | if (!peer_group_active(peer) | |
7009 | || g_peer->pmax[afi][safi] != peer->pmax[afi][safi] | |
7010 | || g_peer->pmax_threshold[afi][safi] | |
7011 | != peer->pmax_threshold[afi][safi] | |
7012 | || CHECK_FLAG(g_peer->af_flags[afi][safi], | |
7013 | PEER_FLAG_MAX_PREFIX_WARNING) | |
7014 | != CHECK_FLAG(peer->af_flags[afi][safi], | |
7015 | PEER_FLAG_MAX_PREFIX_WARNING)) { | |
2b791107 DL |
7016 | vty_out(vty, " neighbor %s maximum-prefix %lu", addr, |
7017 | peer->pmax[afi][safi]); | |
d62a17ae | 7018 | if (peer->pmax_threshold[afi][safi] |
7019 | != MAXIMUM_PREFIX_THRESHOLD_DEFAULT) | |
7020 | vty_out(vty, " %u", | |
7021 | peer->pmax_threshold[afi][safi]); | |
7022 | if (CHECK_FLAG(peer->af_flags[afi][safi], | |
7023 | PEER_FLAG_MAX_PREFIX_WARNING)) | |
7024 | vty_out(vty, " warning-only"); | |
7025 | if (peer->pmax_restart[afi][safi]) | |
7026 | vty_out(vty, " restart %u", | |
7027 | peer->pmax_restart[afi][safi]); | |
7028 | vty_out(vty, "\n"); | |
7029 | } | |
7030 | ||
7031 | /* Route server client. */ | |
7032 | if (peergroup_af_flag_check(peer, afi, safi, | |
7033 | PEER_FLAG_RSERVER_CLIENT)) { | |
2b791107 | 7034 | vty_out(vty, " neighbor %s route-server-client\n", addr); |
d62a17ae | 7035 | } |
7036 | ||
7037 | /* Nexthop-local unchanged. */ | |
7038 | if (peergroup_af_flag_check(peer, afi, safi, | |
7039 | PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED)) { | |
2b791107 | 7040 | vty_out(vty, " neighbor %s nexthop-local unchanged\n", addr); |
d62a17ae | 7041 | } |
7042 | ||
7043 | /* allowas-in <1-10> */ | |
7044 | if (peer_af_flag_check(peer, afi, safi, PEER_FLAG_ALLOWAS_IN)) { | |
7045 | if (!peer_group_active(peer) | |
7046 | || !peer_af_flag_check(g_peer, afi, safi, | |
7047 | PEER_FLAG_ALLOWAS_IN) | |
7048 | || peer->allowas_in[afi][safi] | |
7049 | != g_peer->allowas_in[afi][safi]) { | |
7050 | if (peer->allowas_in[afi][safi] == 3) { | |
2b791107 DL |
7051 | vty_out(vty, " neighbor %s allowas-in\n", |
7052 | addr); | |
d62a17ae | 7053 | } else { |
2b791107 DL |
7054 | vty_out(vty, " neighbor %s allowas-in %d\n", |
7055 | addr, peer->allowas_in[afi][safi]); | |
d62a17ae | 7056 | } |
7057 | } | |
7058 | } | |
7059 | ||
7060 | /* allowas-in origin */ | |
7061 | else if (peer_af_flag_check(peer, afi, safi, | |
7062 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { | |
7063 | if (!peer_group_active(peer) | |
7064 | || !peer_af_flag_check(g_peer, afi, safi, | |
7065 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { | |
2b791107 | 7066 | vty_out(vty, " neighbor %s allowas-in origin\n", addr); |
d62a17ae | 7067 | } |
7068 | } | |
7069 | ||
7070 | /* weight */ | |
7071 | if (peer_af_flag_check(peer, afi, safi, PEER_FLAG_WEIGHT)) | |
7072 | if (!peer_group_active(peer) | |
7073 | || !peer_af_flag_check(g_peer, afi, safi, PEER_FLAG_WEIGHT) | |
7074 | || peer->weight[afi][safi] != g_peer->weight[afi][safi]) { | |
7075 | if (peer->weight[afi][safi]) { | |
2b791107 DL |
7076 | vty_out(vty, " neighbor %s weight %lu\n", addr, |
7077 | peer->weight[afi][safi]); | |
d62a17ae | 7078 | } |
7079 | } | |
7080 | ||
7081 | /* Filter. */ | |
2b791107 | 7082 | bgp_config_write_filter(vty, peer, afi, safi); |
d62a17ae | 7083 | |
7084 | /* atribute-unchanged. */ | |
a4d82a8a PZ |
7085 | if (peer_af_flag_check(peer, afi, safi, PEER_FLAG_AS_PATH_UNCHANGED) |
7086 | || peer_af_flag_check(peer, afi, safi, PEER_FLAG_NEXTHOP_UNCHANGED) | |
7087 | || peer_af_flag_check(peer, afi, safi, PEER_FLAG_MED_UNCHANGED)) { | |
7088 | ||
7089 | if (!peer_group_active(peer) | |
7090 | || peergroup_af_flag_check(peer, afi, safi, | |
7091 | PEER_FLAG_AS_PATH_UNCHANGED) | |
7092 | || peergroup_af_flag_check(peer, afi, safi, | |
7093 | PEER_FLAG_NEXTHOP_UNCHANGED) | |
7094 | || peergroup_af_flag_check(peer, afi, safi, | |
7095 | PEER_FLAG_MED_UNCHANGED)) { | |
8eeb0335 | 7096 | |
2b791107 | 7097 | vty_out(vty, |
d62a17ae | 7098 | " neighbor %s attribute-unchanged%s%s%s\n", |
7099 | addr, | |
60466a63 QY |
7100 | peer_af_flag_check(peer, afi, safi, |
7101 | PEER_FLAG_AS_PATH_UNCHANGED) | |
d62a17ae | 7102 | ? " as-path" |
7103 | : "", | |
60466a63 QY |
7104 | peer_af_flag_check(peer, afi, safi, |
7105 | PEER_FLAG_NEXTHOP_UNCHANGED) | |
d62a17ae | 7106 | ? " next-hop" |
7107 | : "", | |
8eeb0335 DW |
7108 | peer_af_flag_check(peer, afi, safi, |
7109 | PEER_FLAG_MED_UNCHANGED) | |
d62a17ae | 7110 | ? " med" |
7111 | : ""); | |
7112 | } | |
7113 | } | |
718e3744 | 7114 | } |
7115 | ||
2b791107 DL |
7116 | /* Address family based peer configuration display. */ |
7117 | static void bgp_config_write_family(struct vty *vty, struct bgp *bgp, afi_t afi, | |
7118 | safi_t safi) | |
d62a17ae | 7119 | { |
2b791107 DL |
7120 | struct peer *peer; |
7121 | struct peer_group *group; | |
7122 | struct listnode *node, *nnode; | |
d62a17ae | 7123 | |
d62a17ae | 7124 | |
2b791107 | 7125 | vty_frame(vty, " !\n address-family "); |
d62a17ae | 7126 | if (afi == AFI_IP) { |
7127 | if (safi == SAFI_UNICAST) | |
2b791107 | 7128 | vty_frame(vty, "ipv4 unicast"); |
d62a17ae | 7129 | else if (safi == SAFI_LABELED_UNICAST) |
2b791107 | 7130 | vty_frame(vty, "ipv4 labeled-unicast"); |
d62a17ae | 7131 | else if (safi == SAFI_MULTICAST) |
2b791107 | 7132 | vty_frame(vty, "ipv4 multicast"); |
d62a17ae | 7133 | else if (safi == SAFI_MPLS_VPN) |
2b791107 | 7134 | vty_frame(vty, "ipv4 vpn"); |
d62a17ae | 7135 | else if (safi == SAFI_ENCAP) |
2b791107 | 7136 | vty_frame(vty, "ipv4 encap"); |
7c40bf39 | 7137 | else if (safi == SAFI_FLOWSPEC) |
7138 | vty_frame(vty, "ipv4 flowspec"); | |
d62a17ae | 7139 | } else if (afi == AFI_IP6) { |
7140 | if (safi == SAFI_UNICAST) | |
2b791107 | 7141 | vty_frame(vty, "ipv6 unicast"); |
d62a17ae | 7142 | else if (safi == SAFI_LABELED_UNICAST) |
2b791107 | 7143 | vty_frame(vty, "ipv6 labeled-unicast"); |
d62a17ae | 7144 | else if (safi == SAFI_MULTICAST) |
2b791107 | 7145 | vty_frame(vty, "ipv6 multicast"); |
d62a17ae | 7146 | else if (safi == SAFI_MPLS_VPN) |
2b791107 | 7147 | vty_frame(vty, "ipv6 vpn"); |
d62a17ae | 7148 | else if (safi == SAFI_ENCAP) |
2b791107 | 7149 | vty_frame(vty, "ipv6 encap"); |
7c40bf39 | 7150 | else if (safi == SAFI_FLOWSPEC) |
7151 | vty_frame(vty, "ipv6 flowspec"); | |
d62a17ae | 7152 | } else if (afi == AFI_L2VPN) { |
7153 | if (safi == SAFI_EVPN) | |
2b791107 | 7154 | vty_frame(vty, "l2vpn evpn"); |
d62a17ae | 7155 | } |
2b791107 | 7156 | vty_frame(vty, "\n"); |
718e3744 | 7157 | |
2b791107 | 7158 | bgp_config_write_distance(vty, bgp, afi, safi); |
718e3744 | 7159 | |
2b791107 | 7160 | bgp_config_write_network(vty, bgp, afi, safi); |
734b349e | 7161 | |
2b791107 | 7162 | bgp_config_write_redistribute(vty, bgp, afi, safi); |
718e3744 | 7163 | |
d62a17ae | 7164 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) |
2b791107 | 7165 | bgp_config_write_peer_af(vty, bgp, group->conf, afi, safi); |
400b1fad | 7166 | |
d62a17ae | 7167 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { |
7168 | /* Skip dynamic neighbors. */ | |
7169 | if (peer_dynamic_neighbor(peer)) | |
7170 | continue; | |
f14e6fdb | 7171 | |
d62a17ae | 7172 | /* Do not display doppelganger peers */ |
7173 | if (CHECK_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE)) | |
2b791107 | 7174 | bgp_config_write_peer_af(vty, bgp, peer, afi, safi); |
d62a17ae | 7175 | } |
165b5fff | 7176 | |
2b791107 DL |
7177 | bgp_config_write_maxpaths(vty, bgp, afi, safi); |
7178 | bgp_config_write_table_map(vty, bgp, afi, safi); | |
165b5fff | 7179 | |
d62a17ae | 7180 | if (safi == SAFI_EVPN) |
2b791107 | 7181 | bgp_config_write_evpn_info(vty, bgp, afi, safi); |
718e3744 | 7182 | |
b9c7bc5a PZ |
7183 | if (safi == SAFI_UNICAST) { |
7184 | bgp_vpn_policy_config_write_afi(vty, bgp, afi); | |
7185 | if (CHECK_FLAG(bgp->af_flags[afi][safi], | |
7186 | BGP_CONFIG_VRF_TO_MPLSVPN_EXPORT)) { | |
ddb5b488 | 7187 | |
b9c7bc5a PZ |
7188 | vty_out(vty, " export vpn\n"); |
7189 | } | |
7190 | if (CHECK_FLAG(bgp->af_flags[afi][safi], | |
7191 | BGP_CONFIG_MPLSVPN_TO_VRF_IMPORT)) { | |
7192 | ||
7193 | vty_out(vty, " import vpn\n"); | |
7194 | } | |
ddb5b488 PZ |
7195 | } |
7196 | ||
2b791107 | 7197 | vty_endframe(vty, " exit-address-family\n"); |
718e3744 | 7198 | } |
7199 | ||
d62a17ae | 7200 | int bgp_config_write(struct vty *vty) |
718e3744 | 7201 | { |
d62a17ae | 7202 | int write = 0; |
7203 | struct bgp *bgp; | |
7204 | struct peer_group *group; | |
7205 | struct peer *peer; | |
7206 | struct listnode *node, *nnode; | |
7207 | struct listnode *mnode, *mnnode; | |
718e3744 | 7208 | |
d62a17ae | 7209 | /* BGP Multiple instance. */ |
7210 | if (!bgp_option_check(BGP_OPT_MULTIPLE_INSTANCE)) { | |
7211 | vty_out(vty, "no bgp multiple-instance\n"); | |
7212 | write++; | |
7213 | } | |
718e3744 | 7214 | |
d62a17ae | 7215 | /* BGP Config type. */ |
7216 | if (bgp_option_check(BGP_OPT_CONFIG_CISCO)) { | |
7217 | vty_out(vty, "bgp config-type cisco\n"); | |
7218 | write++; | |
7219 | } | |
718e3744 | 7220 | |
d62a17ae | 7221 | if (bm->rmap_update_timer != RMAP_DEFAULT_UPDATE_TIMER) |
7222 | vty_out(vty, "bgp route-map delay-timer %u\n", | |
7223 | bm->rmap_update_timer); | |
7224 | ||
2b791107 DL |
7225 | if (write) |
7226 | vty_out(vty, "!\n"); | |
7227 | ||
d62a17ae | 7228 | /* BGP configuration. */ |
7229 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
0b5131c9 MK |
7230 | |
7231 | /* skip all auto created vrf as they dont have user config */ | |
7232 | if (CHECK_FLAG(bgp->vrf_flags, BGP_VRF_AUTO)) | |
7233 | continue; | |
7234 | ||
d62a17ae | 7235 | /* Router bgp ASN */ |
7236 | vty_out(vty, "router bgp %u", bgp->as); | |
7237 | ||
7238 | if (bgp_option_check(BGP_OPT_MULTIPLE_INSTANCE)) { | |
7239 | if (bgp->name) | |
7240 | vty_out(vty, " %s %s", | |
7241 | (bgp->inst_type | |
7242 | == BGP_INSTANCE_TYPE_VIEW) | |
7243 | ? "view" | |
7244 | : "vrf", | |
7245 | bgp->name); | |
7246 | } | |
7247 | vty_out(vty, "\n"); | |
7248 | ||
7249 | /* No Synchronization */ | |
7250 | if (bgp_option_check(BGP_OPT_CONFIG_CISCO)) | |
7251 | vty_out(vty, " no synchronization\n"); | |
7252 | ||
7253 | /* BGP fast-external-failover. */ | |
7254 | if (CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) | |
7255 | vty_out(vty, " no bgp fast-external-failover\n"); | |
7256 | ||
7257 | /* BGP router ID. */ | |
7258 | if (bgp->router_id_static.s_addr != 0) | |
7259 | vty_out(vty, " bgp router-id %s\n", | |
7260 | inet_ntoa(bgp->router_id_static)); | |
7261 | ||
7262 | /* BGP log-neighbor-changes. */ | |
7263 | if (!!bgp_flag_check(bgp, BGP_FLAG_LOG_NEIGHBOR_CHANGES) | |
7264 | != DFLT_BGP_LOG_NEIGHBOR_CHANGES) | |
7265 | vty_out(vty, " %sbgp log-neighbor-changes\n", | |
7266 | bgp_flag_check(bgp, | |
7267 | BGP_FLAG_LOG_NEIGHBOR_CHANGES) | |
7268 | ? "" | |
7269 | : "no "); | |
7270 | ||
7271 | /* BGP configuration. */ | |
7272 | if (bgp_flag_check(bgp, BGP_FLAG_ALWAYS_COMPARE_MED)) | |
7273 | vty_out(vty, " bgp always-compare-med\n"); | |
7274 | ||
7275 | /* BGP default ipv4-unicast. */ | |
7276 | if (bgp_flag_check(bgp, BGP_FLAG_NO_DEFAULT_IPV4)) | |
7277 | vty_out(vty, " no bgp default ipv4-unicast\n"); | |
7278 | ||
7279 | /* BGP default local-preference. */ | |
7280 | if (bgp->default_local_pref != BGP_DEFAULT_LOCAL_PREF) | |
7281 | vty_out(vty, " bgp default local-preference %u\n", | |
7282 | bgp->default_local_pref); | |
7283 | ||
7284 | /* BGP default show-hostname */ | |
7285 | if (!!bgp_flag_check(bgp, BGP_FLAG_SHOW_HOSTNAME) | |
7286 | != DFLT_BGP_SHOW_HOSTNAME) | |
7287 | vty_out(vty, " %sbgp default show-hostname\n", | |
7288 | bgp_flag_check(bgp, BGP_FLAG_SHOW_HOSTNAME) | |
7289 | ? "" | |
7290 | : "no "); | |
7291 | ||
7292 | /* BGP default subgroup-pkt-queue-max. */ | |
7293 | if (bgp->default_subgroup_pkt_queue_max | |
7294 | != BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX) | |
7295 | vty_out(vty, " bgp default subgroup-pkt-queue-max %u\n", | |
7296 | bgp->default_subgroup_pkt_queue_max); | |
7297 | ||
f26845f9 QY |
7298 | /* BGP default autoshutdown neighbors */ |
7299 | if (bgp->autoshutdown) | |
8175f54a | 7300 | vty_out(vty, " bgp default shutdown\n"); |
f26845f9 | 7301 | |
d62a17ae | 7302 | /* BGP client-to-client reflection. */ |
7303 | if (bgp_flag_check(bgp, BGP_FLAG_NO_CLIENT_TO_CLIENT)) | |
7304 | vty_out(vty, " no bgp client-to-client reflection\n"); | |
7305 | ||
7306 | /* BGP cluster ID. */ | |
7307 | if (CHECK_FLAG(bgp->config, BGP_CONFIG_CLUSTER_ID)) | |
7308 | vty_out(vty, " bgp cluster-id %s\n", | |
7309 | inet_ntoa(bgp->cluster_id)); | |
7310 | ||
7311 | /* Disable ebgp connected nexthop check */ | |
7312 | if (bgp_flag_check(bgp, BGP_FLAG_DISABLE_NH_CONNECTED_CHK)) | |
7313 | vty_out(vty, | |
7314 | " bgp disable-ebgp-connected-route-check\n"); | |
7315 | ||
7316 | /* Confederation identifier*/ | |
7317 | if (CHECK_FLAG(bgp->config, BGP_CONFIG_CONFEDERATION)) | |
7318 | vty_out(vty, " bgp confederation identifier %i\n", | |
7319 | bgp->confed_id); | |
7320 | ||
7321 | /* Confederation peer */ | |
7322 | if (bgp->confed_peers_cnt > 0) { | |
7323 | int i; | |
7324 | ||
7325 | vty_out(vty, " bgp confederation peers"); | |
7326 | ||
7327 | for (i = 0; i < bgp->confed_peers_cnt; i++) | |
7328 | vty_out(vty, " %u", bgp->confed_peers[i]); | |
7329 | ||
7330 | vty_out(vty, "\n"); | |
7331 | } | |
5fe9f963 | 7332 | |
d62a17ae | 7333 | /* BGP enforce-first-as. */ |
7334 | if (bgp_flag_check(bgp, BGP_FLAG_ENFORCE_FIRST_AS)) | |
7335 | vty_out(vty, " bgp enforce-first-as\n"); | |
7336 | ||
7337 | /* BGP deterministic-med. */ | |
7338 | if (!!bgp_flag_check(bgp, BGP_FLAG_DETERMINISTIC_MED) | |
7339 | != DFLT_BGP_DETERMINISTIC_MED) | |
7340 | vty_out(vty, " %sbgp deterministic-med\n", | |
7341 | bgp_flag_check(bgp, BGP_FLAG_DETERMINISTIC_MED) | |
7342 | ? "" | |
7343 | : "no "); | |
7344 | ||
7345 | /* BGP update-delay. */ | |
7346 | bgp_config_write_update_delay(vty, bgp); | |
7347 | ||
7348 | if (bgp->v_maxmed_onstartup | |
7349 | != BGP_MAXMED_ONSTARTUP_UNCONFIGURED) { | |
7350 | vty_out(vty, " bgp max-med on-startup %u", | |
7351 | bgp->v_maxmed_onstartup); | |
7352 | if (bgp->maxmed_onstartup_value | |
7353 | != BGP_MAXMED_VALUE_DEFAULT) | |
7354 | vty_out(vty, " %u", | |
7355 | bgp->maxmed_onstartup_value); | |
7356 | vty_out(vty, "\n"); | |
7357 | } | |
7358 | if (bgp->v_maxmed_admin != BGP_MAXMED_ADMIN_UNCONFIGURED) { | |
7359 | vty_out(vty, " bgp max-med administrative"); | |
7360 | if (bgp->maxmed_admin_value != BGP_MAXMED_VALUE_DEFAULT) | |
7361 | vty_out(vty, " %u", bgp->maxmed_admin_value); | |
7362 | vty_out(vty, "\n"); | |
7363 | } | |
718e3744 | 7364 | |
d62a17ae | 7365 | /* write quanta */ |
7366 | bgp_config_write_wpkt_quanta(vty, bgp); | |
555e09d4 QY |
7367 | /* read quanta */ |
7368 | bgp_config_write_rpkt_quanta(vty, bgp); | |
d62a17ae | 7369 | |
7370 | /* coalesce time */ | |
7371 | bgp_config_write_coalesce_time(vty, bgp); | |
7372 | ||
7373 | /* BGP graceful-restart. */ | |
7374 | if (bgp->stalepath_time != BGP_DEFAULT_STALEPATH_TIME) | |
7375 | vty_out(vty, | |
7376 | " bgp graceful-restart stalepath-time %u\n", | |
7377 | bgp->stalepath_time); | |
7378 | if (bgp->restart_time != BGP_DEFAULT_RESTART_TIME) | |
7379 | vty_out(vty, " bgp graceful-restart restart-time %u\n", | |
7380 | bgp->restart_time); | |
7381 | if (bgp_flag_check(bgp, BGP_FLAG_GRACEFUL_RESTART)) | |
7382 | vty_out(vty, " bgp graceful-restart\n"); | |
7383 | ||
7f323236 DW |
7384 | /* BGP graceful-shutdown */ |
7385 | if (bgp_flag_check(bgp, BGP_FLAG_GRACEFUL_SHUTDOWN)) | |
7386 | vty_out(vty, " bgp graceful-shutdown\n"); | |
7387 | ||
d62a17ae | 7388 | /* BGP graceful-restart Preserve State F bit. */ |
7389 | if (bgp_flag_check(bgp, BGP_FLAG_GR_PRESERVE_FWD)) | |
7390 | vty_out(vty, | |
7391 | " bgp graceful-restart preserve-fw-state\n"); | |
7392 | ||
7393 | /* BGP bestpath method. */ | |
7394 | if (bgp_flag_check(bgp, BGP_FLAG_ASPATH_IGNORE)) | |
7395 | vty_out(vty, " bgp bestpath as-path ignore\n"); | |
7396 | if (bgp_flag_check(bgp, BGP_FLAG_ASPATH_CONFED)) | |
7397 | vty_out(vty, " bgp bestpath as-path confed\n"); | |
7398 | ||
7399 | if (bgp_flag_check(bgp, BGP_FLAG_ASPATH_MULTIPATH_RELAX)) { | |
7400 | if (bgp_flag_check(bgp, | |
7401 | BGP_FLAG_MULTIPATH_RELAX_AS_SET)) { | |
7402 | vty_out(vty, | |
7403 | " bgp bestpath as-path multipath-relax as-set\n"); | |
7404 | } else { | |
7405 | vty_out(vty, | |
7406 | " bgp bestpath as-path multipath-relax\n"); | |
7407 | } | |
7408 | } | |
718e3744 | 7409 | |
d62a17ae | 7410 | if (bgp_flag_check(bgp, BGP_FLAG_RR_ALLOW_OUTBOUND_POLICY)) { |
7411 | vty_out(vty, | |
7412 | " bgp route-reflector allow-outbound-policy\n"); | |
7413 | } | |
7414 | if (bgp_flag_check(bgp, BGP_FLAG_COMPARE_ROUTER_ID)) | |
7415 | vty_out(vty, " bgp bestpath compare-routerid\n"); | |
7416 | if (bgp_flag_check(bgp, BGP_FLAG_MED_CONFED) | |
7417 | || bgp_flag_check(bgp, BGP_FLAG_MED_MISSING_AS_WORST)) { | |
7418 | vty_out(vty, " bgp bestpath med"); | |
7419 | if (bgp_flag_check(bgp, BGP_FLAG_MED_CONFED)) | |
7420 | vty_out(vty, " confed"); | |
7421 | if (bgp_flag_check(bgp, BGP_FLAG_MED_MISSING_AS_WORST)) | |
7422 | vty_out(vty, " missing-as-worst"); | |
7423 | vty_out(vty, "\n"); | |
7424 | } | |
718e3744 | 7425 | |
d62a17ae | 7426 | /* BGP network import check. */ |
7427 | if (!!bgp_flag_check(bgp, BGP_FLAG_IMPORT_CHECK) | |
7428 | != DFLT_BGP_IMPORT_CHECK) | |
7429 | vty_out(vty, " %sbgp network import-check\n", | |
7430 | bgp_flag_check(bgp, BGP_FLAG_IMPORT_CHECK) | |
7431 | ? "" | |
7432 | : "no "); | |
7433 | ||
7434 | /* BGP flag dampening. */ | |
7435 | if (CHECK_FLAG(bgp->af_flags[AFI_IP][SAFI_UNICAST], | |
7436 | BGP_CONFIG_DAMPENING)) | |
7437 | bgp_config_write_damp(vty); | |
7438 | ||
7439 | /* BGP timers configuration. */ | |
7440 | if (bgp->default_keepalive != BGP_DEFAULT_KEEPALIVE | |
7441 | && bgp->default_holdtime != BGP_DEFAULT_HOLDTIME) | |
7442 | vty_out(vty, " timers bgp %u %u\n", | |
7443 | bgp->default_keepalive, bgp->default_holdtime); | |
7444 | ||
7445 | /* peer-group */ | |
7446 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
7447 | bgp_config_write_peer_global(vty, bgp, group->conf); | |
7448 | } | |
7449 | ||
7450 | /* Normal neighbor configuration. */ | |
7451 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
7452 | if (CHECK_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE)) | |
7453 | bgp_config_write_peer_global(vty, bgp, peer); | |
7454 | } | |
718e3744 | 7455 | |
d62a17ae | 7456 | /* listen range and limit for dynamic BGP neighbors */ |
7457 | bgp_config_write_listen(vty, bgp); | |
f14e6fdb | 7458 | |
d62a17ae | 7459 | /* No auto-summary */ |
7460 | if (bgp_option_check(BGP_OPT_CONFIG_CISCO)) | |
7461 | vty_out(vty, " no auto-summary\n"); | |
718e3744 | 7462 | |
d62a17ae | 7463 | /* IPv4 unicast configuration. */ |
2b791107 | 7464 | bgp_config_write_family(vty, bgp, AFI_IP, SAFI_UNICAST); |
0b960b4d | 7465 | |
d62a17ae | 7466 | /* IPv4 multicast configuration. */ |
2b791107 | 7467 | bgp_config_write_family(vty, bgp, AFI_IP, SAFI_MULTICAST); |
718e3744 | 7468 | |
d62a17ae | 7469 | /* IPv4 labeled-unicast configuration. */ |
2b791107 | 7470 | bgp_config_write_family(vty, bgp, AFI_IP, SAFI_LABELED_UNICAST); |
f51bae9c | 7471 | |
d62a17ae | 7472 | /* IPv4 VPN configuration. */ |
2b791107 | 7473 | bgp_config_write_family(vty, bgp, AFI_IP, SAFI_MPLS_VPN); |
718e3744 | 7474 | |
d62a17ae | 7475 | /* ENCAPv4 configuration. */ |
2b791107 | 7476 | bgp_config_write_family(vty, bgp, AFI_IP, SAFI_ENCAP); |
8b1fb8be | 7477 | |
7c40bf39 | 7478 | /* FLOWSPEC v4 configuration. */ |
7479 | bgp_config_write_family(vty, bgp, AFI_IP, SAFI_FLOWSPEC); | |
7480 | ||
d62a17ae | 7481 | /* IPv6 unicast configuration. */ |
2b791107 | 7482 | bgp_config_write_family(vty, bgp, AFI_IP6, SAFI_UNICAST); |
718e3744 | 7483 | |
d62a17ae | 7484 | /* IPv6 multicast configuration. */ |
2b791107 | 7485 | bgp_config_write_family(vty, bgp, AFI_IP6, SAFI_MULTICAST); |
37a217a5 | 7486 | |
d62a17ae | 7487 | /* IPv6 labeled-unicast configuration. */ |
2b791107 DL |
7488 | bgp_config_write_family(vty, bgp, AFI_IP6, |
7489 | SAFI_LABELED_UNICAST); | |
f51bae9c | 7490 | |
d62a17ae | 7491 | /* IPv6 VPN configuration. */ |
2b791107 | 7492 | bgp_config_write_family(vty, bgp, AFI_IP6, SAFI_MPLS_VPN); |
8ecd3266 | 7493 | |
d62a17ae | 7494 | /* ENCAPv6 configuration. */ |
2b791107 | 7495 | bgp_config_write_family(vty, bgp, AFI_IP6, SAFI_ENCAP); |
8b1fb8be | 7496 | |
7c40bf39 | 7497 | /* FLOWSPEC v6 configuration. */ |
7498 | bgp_config_write_family(vty, bgp, AFI_IP6, SAFI_FLOWSPEC); | |
7499 | ||
d62a17ae | 7500 | /* EVPN configuration. */ |
2b791107 | 7501 | bgp_config_write_family(vty, bgp, AFI_L2VPN, SAFI_EVPN); |
3d6c0dfa | 7502 | |
65efcfce | 7503 | #if ENABLE_BGP_VNC |
2b791107 | 7504 | bgp_rfapi_cfg_write(vty, bgp); |
65efcfce LB |
7505 | #endif |
7506 | ||
2b791107 | 7507 | vty_out(vty, "!\n"); |
d62a17ae | 7508 | } |
2b791107 | 7509 | return 0; |
718e3744 | 7510 | } |
7511 | ||
d62a17ae | 7512 | void bgp_master_init(struct thread_master *master) |
718e3744 | 7513 | { |
d62a17ae | 7514 | qobj_init(); |
0e64d123 | 7515 | |
d62a17ae | 7516 | memset(&bgp_master, 0, sizeof(struct bgp_master)); |
718e3744 | 7517 | |
d62a17ae | 7518 | bm = &bgp_master; |
7519 | bm->bgp = list_new(); | |
7520 | bm->listen_sockets = list_new(); | |
7521 | bm->port = BGP_PORT_DEFAULT; | |
7522 | bm->master = master; | |
7523 | bm->start_time = bgp_clock(); | |
7524 | bm->t_rmap_update = NULL; | |
7525 | bm->rmap_update_timer = RMAP_DEFAULT_UPDATE_TIMER; | |
495f0b13 | 7526 | |
d62a17ae | 7527 | bgp_process_queue_init(); |
b8fd6a15 | 7528 | |
e9eb5f63 | 7529 | /* init the rd id space. |
7530 | assign 0th index in the bitfield, | |
523cafc4 | 7531 | so that we start with id 1 |
7532 | */ | |
e9eb5f63 | 7533 | bf_init(bm->rd_idspace, UINT16_MAX); |
7534 | bf_assign_zero_index(bm->rd_idspace); | |
7535 | ||
d62a17ae | 7536 | /* Enable multiple instances by default. */ |
7537 | bgp_option_set(BGP_OPT_MULTIPLE_INSTANCE); | |
19df7279 | 7538 | |
d62a17ae | 7539 | QOBJ_REG(bm, bgp_master); |
718e3744 | 7540 | } |
200df115 | 7541 | |
ad4cbda1 | 7542 | /* |
009b18fc | 7543 | * Free up connected routes and interfaces for a BGP instance. Invoked upon |
7544 | * instance delete (non-default only) or BGP exit. | |
ad4cbda1 | 7545 | */ |
d62a17ae | 7546 | static void bgp_if_finish(struct bgp *bgp) |
ad4cbda1 | 7547 | { |
f4e14fdb | 7548 | struct vrf *vrf = vrf_lookup_by_id(bgp->vrf_id); |
d62a17ae | 7549 | struct interface *ifp; |
7550 | ||
f4e14fdb | 7551 | if (bgp->inst_type == BGP_INSTANCE_TYPE_VIEW || !vrf) |
d62a17ae | 7552 | return; |
ad4cbda1 | 7553 | |
451fda4f | 7554 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 7555 | struct listnode *c_node, *c_nnode; |
7556 | struct connected *c; | |
ad4cbda1 | 7557 | |
d62a17ae | 7558 | for (ALL_LIST_ELEMENTS(ifp->connected, c_node, c_nnode, c)) |
7559 | bgp_connected_delete(bgp, c); | |
7560 | } | |
ad4cbda1 | 7561 | } |
6b0655a2 | 7562 | |
d62a17ae | 7563 | extern void bgp_snmp_init(void); |
3012671f | 7564 | |
d62a17ae | 7565 | static void bgp_viewvrf_autocomplete(vector comps, struct cmd_token *token) |
18c57037 | 7566 | { |
d62a17ae | 7567 | struct vrf *vrf = NULL; |
7568 | struct listnode *next; | |
7569 | struct bgp *bgp; | |
18c57037 | 7570 | |
a2addae8 | 7571 | RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) { |
d62a17ae | 7572 | if (vrf->vrf_id != VRF_DEFAULT) |
7573 | vector_set(comps, XSTRDUP(MTYPE_COMPLETION, vrf->name)); | |
7574 | } | |
18c57037 | 7575 | |
d62a17ae | 7576 | for (ALL_LIST_ELEMENTS_RO(bm->bgp, next, bgp)) { |
7577 | if (bgp->inst_type != BGP_INSTANCE_TYPE_VIEW) | |
7578 | continue; | |
18c57037 | 7579 | |
d62a17ae | 7580 | vector_set(comps, XSTRDUP(MTYPE_COMPLETION, bgp->name)); |
7581 | } | |
18c57037 DS |
7582 | } |
7583 | ||
7584 | static const struct cmd_variable_handler bgp_viewvrf_var_handlers[] = { | |
d62a17ae | 7585 | {.tokenname = "VIEWVRFNAME", .completions = bgp_viewvrf_autocomplete}, |
7586 | {.completions = NULL}, | |
18c57037 DS |
7587 | }; |
7588 | ||
da22432d | 7589 | static void bgp_pthreads_init() |
2d4ee774 | 7590 | { |
0ca8b79f QY |
7591 | frr_pthread_init(); |
7592 | ||
a715eab3 QY |
7593 | struct frr_pthread_attr io = { |
7594 | .id = PTHREAD_IO, | |
7595 | .start = frr_pthread_attr_default.start, | |
7596 | .stop = frr_pthread_attr_default.stop, | |
a715eab3 QY |
7597 | }; |
7598 | struct frr_pthread_attr ka = { | |
7599 | .id = PTHREAD_KEEPALIVES, | |
7600 | .start = bgp_keepalives_start, | |
7601 | .stop = bgp_keepalives_stop, | |
a715eab3 | 7602 | }; |
d8a8a8de QY |
7603 | frr_pthread_new(&io, "BGP I/O thread"); |
7604 | frr_pthread_new(&ka, "BGP Keepalives thread"); | |
419dfe6a QY |
7605 | } |
7606 | ||
7607 | void bgp_pthreads_run() | |
7608 | { | |
a715eab3 QY |
7609 | struct frr_pthread *io = frr_pthread_get(PTHREAD_IO); |
7610 | struct frr_pthread *ka = frr_pthread_get(PTHREAD_KEEPALIVES); | |
424ab01d | 7611 | |
a715eab3 QY |
7612 | frr_pthread_run(io, NULL); |
7613 | frr_pthread_run(ka, NULL); | |
88b24dee | 7614 | |
a715eab3 QY |
7615 | /* Wait until threads are ready. */ |
7616 | frr_pthread_wait_running(io); | |
7617 | frr_pthread_wait_running(ka); | |
2d4ee774 QY |
7618 | } |
7619 | ||
7620 | void bgp_pthreads_finish() | |
7621 | { | |
0ca8b79f QY |
7622 | frr_pthread_stop_all(); |
7623 | frr_pthread_finish(); | |
2d4ee774 QY |
7624 | } |
7625 | ||
d62a17ae | 7626 | void bgp_init(void) |
718e3744 | 7627 | { |
fc9a856f | 7628 | |
d62a17ae | 7629 | /* allocates some vital data structures used by peer commands in |
7630 | * vty_init */ | |
718e3744 | 7631 | |
419dfe6a QY |
7632 | /* pre-init pthreads */ |
7633 | bgp_pthreads_init(); | |
7634 | ||
d62a17ae | 7635 | /* Init zebra. */ |
7636 | bgp_zebra_init(bm->master); | |
718e3744 | 7637 | |
65efcfce | 7638 | #if ENABLE_BGP_VNC |
d62a17ae | 7639 | vnc_zebra_init(bm->master); |
65efcfce LB |
7640 | #endif |
7641 | ||
d62a17ae | 7642 | /* BGP VTY commands installation. */ |
7643 | bgp_vty_init(); | |
7644 | ||
7645 | /* BGP inits. */ | |
7646 | bgp_attr_init(); | |
7647 | bgp_debug_init(); | |
7648 | bgp_dump_init(); | |
7649 | bgp_route_init(); | |
7650 | bgp_route_map_init(); | |
7651 | bgp_scan_vty_init(); | |
7652 | bgp_mplsvpn_init(); | |
65efcfce | 7653 | #if ENABLE_BGP_VNC |
d62a17ae | 7654 | rfapi_init(); |
65efcfce | 7655 | #endif |
d62a17ae | 7656 | bgp_ethernetvpn_init(); |
7c40bf39 | 7657 | bgp_flowspec_vty_init(); |
d62a17ae | 7658 | |
7659 | /* Access list initialize. */ | |
7660 | access_list_init(); | |
7661 | access_list_add_hook(peer_distribute_update); | |
7662 | access_list_delete_hook(peer_distribute_update); | |
7663 | ||
7664 | /* Filter list initialize. */ | |
7665 | bgp_filter_init(); | |
7666 | as_list_add_hook(peer_aslist_add); | |
7667 | as_list_delete_hook(peer_aslist_del); | |
7668 | ||
7669 | /* Prefix list initialize.*/ | |
7670 | prefix_list_init(); | |
7671 | prefix_list_add_hook(peer_prefix_list_update); | |
7672 | prefix_list_delete_hook(peer_prefix_list_update); | |
7673 | ||
7674 | /* Community list initialize. */ | |
7675 | bgp_clist = community_list_init(); | |
7676 | ||
7677 | /* BFD init */ | |
7678 | bgp_bfd_init(); | |
7679 | ||
7680 | cmd_variable_handler_register(bgp_viewvrf_var_handlers); | |
7681 | } | |
7682 | ||
7683 | void bgp_terminate(void) | |
7684 | { | |
7685 | struct bgp *bgp; | |
7686 | struct peer *peer; | |
7687 | struct listnode *node, *nnode; | |
7688 | struct listnode *mnode, *mnnode; | |
7689 | ||
7690 | QOBJ_UNREG(bm); | |
7691 | ||
7692 | /* Close the listener sockets first as this prevents peers from | |
7693 | * attempting | |
7694 | * to reconnect on receiving the peer unconfig message. In the presence | |
7695 | * of a large number of peers this will ensure that no peer is left with | |
7696 | * a dangling connection | |
7697 | */ | |
7698 | /* reverse bgp_master_init */ | |
7699 | bgp_close(); | |
c3004bc4 | 7700 | |
d62a17ae | 7701 | if (bm->listen_sockets) |
acdf5e25 | 7702 | list_delete_and_null(&bm->listen_sockets); |
d62a17ae | 7703 | |
7704 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) | |
7705 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
7706 | if (peer->status == Established | |
7707 | || peer->status == OpenSent | |
7708 | || peer->status == OpenConfirm) | |
7709 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
7710 | BGP_NOTIFY_CEASE_PEER_UNCONFIG); | |
7711 | ||
e208c8f9 DS |
7712 | if (bm->process_main_queue) |
7713 | work_queue_free_and_null(&bm->process_main_queue); | |
d62a17ae | 7714 | |
7715 | if (bm->t_rmap_update) | |
7716 | BGP_TIMER_OFF(bm->t_rmap_update); | |
545acafb | 7717 | } |