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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" |
92708db6 | 47 | #include "bitfield.h" |
718e3744 | 48 | |
49 | #include "bgpd/bgpd.h" | |
50 | #include "bgpd/bgp_table.h" | |
51 | #include "bgpd/bgp_aspath.h" | |
52 | #include "bgpd/bgp_route.h" | |
53 | #include "bgpd/bgp_dump.h" | |
54 | #include "bgpd/bgp_debug.h" | |
55 | #include "bgpd/bgp_community.h" | |
56 | #include "bgpd/bgp_attr.h" | |
57 | #include "bgpd/bgp_regex.h" | |
58 | #include "bgpd/bgp_clist.h" | |
59 | #include "bgpd/bgp_fsm.h" | |
60 | #include "bgpd/bgp_packet.h" | |
61 | #include "bgpd/bgp_zebra.h" | |
62 | #include "bgpd/bgp_open.h" | |
63 | #include "bgpd/bgp_filter.h" | |
64 | #include "bgpd/bgp_nexthop.h" | |
65 | #include "bgpd/bgp_damp.h" | |
66 | #include "bgpd/bgp_mplsvpn.h" | |
65efcfce | 67 | #if ENABLE_BGP_VNC |
f8b6f499 LB |
68 | #include "bgpd/rfapi/bgp_rfapi_cfg.h" |
69 | #include "bgpd/rfapi/rfapi_backend.h" | |
65efcfce | 70 | #endif |
7ef5a232 | 71 | #include "bgpd/bgp_evpn.h" |
718e3744 | 72 | #include "bgpd/bgp_advertise.h" |
73 | #include "bgpd/bgp_network.h" | |
74 | #include "bgpd/bgp_vty.h" | |
165b5fff | 75 | #include "bgpd/bgp_mpath.h" |
fc9a856f | 76 | #include "bgpd/bgp_nht.h" |
3f9c7369 | 77 | #include "bgpd/bgp_updgrp.h" |
c43ed2e4 | 78 | #include "bgpd/bgp_bfd.h" |
4a1ab8e4 | 79 | #include "bgpd/bgp_memory.h" |
784d3a42 | 80 | #include "bgpd/bgp_evpn_vty.h" |
2d4ee774 | 81 | #include "bgpd/bgp_keepalives.h" |
56257a44 | 82 | #include "bgpd/bgp_io.h" |
41d6d607 | 83 | #include "bgpd/bgp_ecommunity.h" |
7c40bf39 | 84 | #include "bgpd/bgp_flowspec.h" |
955bfd98 | 85 | #include "bgpd/bgp_labelpool.h" |
f3d32faa | 86 | #include "bgpd/bgp_pbr.h" |
73d70fa6 DL |
87 | |
88 | DEFINE_MTYPE_STATIC(BGPD, PEER_TX_SHUTDOWN_MSG, "Peer shutdown message (TX)"); | |
19df7279 DL |
89 | DEFINE_QOBJ_TYPE(bgp_master) |
90 | DEFINE_QOBJ_TYPE(bgp) | |
91 | DEFINE_QOBJ_TYPE(peer) | |
92 | ||
718e3744 | 93 | /* BGP process wide configuration. */ |
94 | static struct bgp_master bgp_master; | |
95 | ||
96 | /* BGP process wide configuration pointer to export. */ | |
97 | struct bgp_master *bm; | |
98 | ||
99 | /* BGP community-list. */ | |
100 | struct community_list_handler *bgp_clist; | |
6b0655a2 | 101 | |
37fe7731 DS |
102 | unsigned int multipath_num = MULTIPATH_NUM; |
103 | ||
d62a17ae | 104 | static void bgp_if_finish(struct bgp *bgp); |
cc32742c | 105 | static void peer_drop_dynamic_neighbor(struct peer *peer); |
b33adb7c | 106 | |
ad4cbda1 | 107 | extern struct zclient *zclient; |
1ff9a340 | 108 | |
e5619c28 PG |
109 | /* handle main socket creation or deletion */ |
110 | static int bgp_check_main_socket(bool create, struct bgp *bgp) | |
111 | { | |
112 | static int bgp_server_main_created; | |
e5619c28 | 113 | |
e5619c28 PG |
114 | if (create == true) { |
115 | if (bgp_server_main_created) | |
116 | return 0; | |
117 | if (bgp_socket(bgp, bm->port, bm->address) < 0) | |
118 | return BGP_ERR_INVALID_VALUE; | |
119 | bgp_server_main_created = 1; | |
120 | return 0; | |
121 | } | |
122 | if (!bgp_server_main_created) | |
123 | return 0; | |
e5619c28 PG |
124 | bgp_close(); |
125 | bgp_server_main_created = 0; | |
126 | return 0; | |
127 | } | |
128 | ||
d62a17ae | 129 | void bgp_session_reset(struct peer *peer) |
1ff9a340 | 130 | { |
d62a17ae | 131 | if (peer->doppelganger && (peer->doppelganger->status != Deleted) |
132 | && !(CHECK_FLAG(peer->doppelganger->flags, PEER_FLAG_CONFIG_NODE))) | |
133 | peer_delete(peer->doppelganger); | |
1ff9a340 | 134 | |
d62a17ae | 135 | BGP_EVENT_ADD(peer, BGP_Stop); |
1ff9a340 DS |
136 | } |
137 | ||
138 | /* | |
139 | * During session reset, we may delete the doppelganger peer, which would | |
140 | * be the next node to the current node. If the session reset was invoked | |
141 | * during walk of peer list, we would end up accessing the freed next | |
142 | * node. This function moves the next node along. | |
143 | */ | |
d62a17ae | 144 | static void bgp_session_reset_safe(struct peer *peer, struct listnode **nnode) |
1ff9a340 | 145 | { |
d62a17ae | 146 | struct listnode *n; |
147 | struct peer *npeer; | |
1ff9a340 | 148 | |
d62a17ae | 149 | n = (nnode) ? *nnode : NULL; |
150 | npeer = (n) ? listgetdata(n) : NULL; | |
1ff9a340 | 151 | |
d62a17ae | 152 | if (peer->doppelganger && (peer->doppelganger->status != Deleted) |
153 | && !(CHECK_FLAG(peer->doppelganger->flags, | |
154 | PEER_FLAG_CONFIG_NODE))) { | |
155 | if (peer->doppelganger == npeer) | |
156 | /* nnode and *nnode are confirmed to be non-NULL here */ | |
157 | *nnode = (*nnode)->next; | |
158 | peer_delete(peer->doppelganger); | |
159 | } | |
1ff9a340 | 160 | |
d62a17ae | 161 | BGP_EVENT_ADD(peer, BGP_Stop); |
1ff9a340 DS |
162 | } |
163 | ||
718e3744 | 164 | /* BGP global flag manipulation. */ |
d62a17ae | 165 | int bgp_option_set(int flag) |
166 | { | |
167 | switch (flag) { | |
168 | case BGP_OPT_NO_FIB: | |
169 | case BGP_OPT_MULTIPLE_INSTANCE: | |
170 | case BGP_OPT_CONFIG_CISCO: | |
171 | case BGP_OPT_NO_LISTEN: | |
172 | SET_FLAG(bm->options, flag); | |
173 | break; | |
174 | default: | |
175 | return BGP_ERR_INVALID_FLAG; | |
176 | } | |
177 | return 0; | |
178 | } | |
179 | ||
180 | int bgp_option_unset(int flag) | |
181 | { | |
182 | switch (flag) { | |
183 | case BGP_OPT_MULTIPLE_INSTANCE: | |
184 | if (listcount(bm->bgp) > 1) | |
185 | return BGP_ERR_MULTIPLE_INSTANCE_USED; | |
186 | /* Fall through. */ | |
187 | case BGP_OPT_NO_FIB: | |
188 | case BGP_OPT_CONFIG_CISCO: | |
189 | UNSET_FLAG(bm->options, flag); | |
190 | break; | |
191 | default: | |
192 | return BGP_ERR_INVALID_FLAG; | |
193 | } | |
194 | return 0; | |
195 | } | |
196 | ||
197 | int bgp_option_check(int flag) | |
198 | { | |
199 | return CHECK_FLAG(bm->options, flag); | |
718e3744 | 200 | } |
6b0655a2 | 201 | |
718e3744 | 202 | /* BGP flag manipulation. */ |
d62a17ae | 203 | int bgp_flag_set(struct bgp *bgp, int flag) |
718e3744 | 204 | { |
d62a17ae | 205 | SET_FLAG(bgp->flags, flag); |
206 | return 0; | |
718e3744 | 207 | } |
208 | ||
d62a17ae | 209 | int bgp_flag_unset(struct bgp *bgp, int flag) |
718e3744 | 210 | { |
d62a17ae | 211 | UNSET_FLAG(bgp->flags, flag); |
212 | return 0; | |
718e3744 | 213 | } |
214 | ||
d62a17ae | 215 | int bgp_flag_check(struct bgp *bgp, int flag) |
718e3744 | 216 | { |
d62a17ae | 217 | return CHECK_FLAG(bgp->flags, flag); |
718e3744 | 218 | } |
6b0655a2 | 219 | |
718e3744 | 220 | /* Internal function to set BGP structure configureation flag. */ |
d62a17ae | 221 | static void bgp_config_set(struct bgp *bgp, int config) |
718e3744 | 222 | { |
d62a17ae | 223 | SET_FLAG(bgp->config, config); |
718e3744 | 224 | } |
225 | ||
d62a17ae | 226 | static void bgp_config_unset(struct bgp *bgp, int config) |
718e3744 | 227 | { |
d62a17ae | 228 | UNSET_FLAG(bgp->config, config); |
718e3744 | 229 | } |
230 | ||
d62a17ae | 231 | static int bgp_config_check(struct bgp *bgp, int config) |
718e3744 | 232 | { |
d62a17ae | 233 | return CHECK_FLAG(bgp->config, config); |
718e3744 | 234 | } |
6b0655a2 | 235 | |
718e3744 | 236 | /* Set BGP router identifier. */ |
d62a17ae | 237 | static int bgp_router_id_set(struct bgp *bgp, const struct in_addr *id) |
718e3744 | 238 | { |
d62a17ae | 239 | struct peer *peer; |
240 | struct listnode *node, *nnode; | |
718e3744 | 241 | |
d62a17ae | 242 | if (IPV4_ADDR_SAME(&bgp->router_id, id)) |
243 | return 0; | |
718e3744 | 244 | |
d62a17ae | 245 | /* EVPN uses router id in RD, withdraw them */ |
94c2f693 | 246 | if (is_evpn_enabled()) |
d62a17ae | 247 | bgp_evpn_handle_router_id_update(bgp, TRUE); |
2d48ee25 | 248 | |
d62a17ae | 249 | IPV4_ADDR_COPY(&bgp->router_id, id); |
718e3744 | 250 | |
d62a17ae | 251 | /* Set all peer's local identifier with this value. */ |
252 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
253 | IPV4_ADDR_COPY(&peer->local_id, id); | |
718e3744 | 254 | |
d62a17ae | 255 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
256 | peer->last_reset = PEER_DOWN_RID_CHANGE; | |
257 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
258 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
259 | } | |
260 | } | |
14c1a7bf | 261 | |
d62a17ae | 262 | /* EVPN uses router id in RD, update them */ |
94c2f693 | 263 | if (is_evpn_enabled()) |
d62a17ae | 264 | bgp_evpn_handle_router_id_update(bgp, FALSE); |
2d48ee25 | 265 | |
d62a17ae | 266 | return 0; |
718e3744 | 267 | } |
268 | ||
d62a17ae | 269 | void bgp_router_id_zebra_bump(vrf_id_t vrf_id, const struct prefix *router_id) |
0e6cb743 | 270 | { |
d62a17ae | 271 | struct listnode *node, *nnode; |
272 | struct bgp *bgp; | |
0e6cb743 | 273 | |
d62a17ae | 274 | if (vrf_id == VRF_DEFAULT) { |
275 | /* Router-id change for default VRF has to also update all | |
276 | * views. */ | |
277 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) { | |
278 | if (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) | |
279 | continue; | |
0e6cb743 | 280 | |
d62a17ae | 281 | bgp->router_id_zebra = router_id->u.prefix4; |
282 | if (!bgp->router_id_static.s_addr) | |
283 | bgp_router_id_set(bgp, &router_id->u.prefix4); | |
284 | } | |
285 | } else { | |
286 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
287 | if (bgp) { | |
288 | bgp->router_id_zebra = router_id->u.prefix4; | |
0e6cb743 | 289 | |
d62a17ae | 290 | if (!bgp->router_id_static.s_addr) |
291 | bgp_router_id_set(bgp, &router_id->u.prefix4); | |
292 | } | |
293 | } | |
0e6cb743 DL |
294 | } |
295 | ||
d62a17ae | 296 | int bgp_router_id_static_set(struct bgp *bgp, struct in_addr id) |
0e6cb743 | 297 | { |
d62a17ae | 298 | bgp->router_id_static = id; |
299 | bgp_router_id_set(bgp, id.s_addr ? &id : &bgp->router_id_zebra); | |
300 | return 0; | |
0e6cb743 DL |
301 | } |
302 | ||
718e3744 | 303 | /* BGP's cluster-id control. */ |
d62a17ae | 304 | int bgp_cluster_id_set(struct bgp *bgp, struct in_addr *cluster_id) |
718e3744 | 305 | { |
d62a17ae | 306 | struct peer *peer; |
307 | struct listnode *node, *nnode; | |
718e3744 | 308 | |
d62a17ae | 309 | if (bgp_config_check(bgp, BGP_CONFIG_CLUSTER_ID) |
310 | && IPV4_ADDR_SAME(&bgp->cluster_id, cluster_id)) | |
311 | return 0; | |
718e3744 | 312 | |
d62a17ae | 313 | IPV4_ADDR_COPY(&bgp->cluster_id, cluster_id); |
314 | bgp_config_set(bgp, BGP_CONFIG_CLUSTER_ID); | |
718e3744 | 315 | |
d62a17ae | 316 | /* Clear all IBGP peer. */ |
317 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
318 | if (peer->sort != BGP_PEER_IBGP) | |
319 | continue; | |
718e3744 | 320 | |
d62a17ae | 321 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
322 | peer->last_reset = PEER_DOWN_CLID_CHANGE; | |
323 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
324 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
325 | } | |
326 | } | |
327 | return 0; | |
718e3744 | 328 | } |
329 | ||
d62a17ae | 330 | int bgp_cluster_id_unset(struct bgp *bgp) |
718e3744 | 331 | { |
d62a17ae | 332 | struct peer *peer; |
333 | struct listnode *node, *nnode; | |
718e3744 | 334 | |
d62a17ae | 335 | if (!bgp_config_check(bgp, BGP_CONFIG_CLUSTER_ID)) |
336 | return 0; | |
718e3744 | 337 | |
d62a17ae | 338 | bgp->cluster_id.s_addr = 0; |
339 | bgp_config_unset(bgp, BGP_CONFIG_CLUSTER_ID); | |
718e3744 | 340 | |
d62a17ae | 341 | /* Clear all IBGP peer. */ |
342 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
343 | if (peer->sort != BGP_PEER_IBGP) | |
344 | continue; | |
718e3744 | 345 | |
d62a17ae | 346 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
347 | peer->last_reset = PEER_DOWN_CLID_CHANGE; | |
348 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
349 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
350 | } | |
351 | } | |
352 | return 0; | |
718e3744 | 353 | } |
6b0655a2 | 354 | |
65957886 SH |
355 | /* time_t value that is monotonicly increasing |
356 | * and uneffected by adjustments to system clock | |
357 | */ | |
d62a17ae | 358 | time_t bgp_clock(void) |
65957886 | 359 | { |
d62a17ae | 360 | struct timeval tv; |
65957886 | 361 | |
d62a17ae | 362 | monotime(&tv); |
363 | return tv.tv_sec; | |
65957886 SH |
364 | } |
365 | ||
718e3744 | 366 | /* BGP timer configuration. */ |
d7c0a89a | 367 | int bgp_timers_set(struct bgp *bgp, uint32_t keepalive, uint32_t holdtime) |
718e3744 | 368 | { |
d62a17ae | 369 | bgp->default_keepalive = |
370 | (keepalive < holdtime / 3 ? keepalive : holdtime / 3); | |
371 | bgp->default_holdtime = holdtime; | |
718e3744 | 372 | |
d62a17ae | 373 | return 0; |
718e3744 | 374 | } |
375 | ||
d62a17ae | 376 | int bgp_timers_unset(struct bgp *bgp) |
718e3744 | 377 | { |
d62a17ae | 378 | bgp->default_keepalive = BGP_DEFAULT_KEEPALIVE; |
379 | bgp->default_holdtime = BGP_DEFAULT_HOLDTIME; | |
718e3744 | 380 | |
d62a17ae | 381 | return 0; |
718e3744 | 382 | } |
6b0655a2 | 383 | |
718e3744 | 384 | /* BGP confederation configuration. */ |
d62a17ae | 385 | int bgp_confederation_id_set(struct bgp *bgp, as_t as) |
386 | { | |
387 | struct peer *peer; | |
388 | struct listnode *node, *nnode; | |
389 | int already_confed; | |
390 | ||
391 | if (as == 0) | |
392 | return BGP_ERR_INVALID_AS; | |
393 | ||
394 | /* Remember - were we doing confederation before? */ | |
395 | already_confed = bgp_config_check(bgp, BGP_CONFIG_CONFEDERATION); | |
396 | bgp->confed_id = as; | |
397 | bgp_config_set(bgp, BGP_CONFIG_CONFEDERATION); | |
398 | ||
399 | /* If we were doing confederation already, this is just an external | |
400 | AS change. Just Reset EBGP sessions, not CONFED sessions. If we | |
401 | were not doing confederation before, reset all EBGP sessions. */ | |
402 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
403 | /* We're looking for peers who's AS is not local or part of our | |
404 | confederation. */ | |
405 | if (already_confed) { | |
406 | if (peer_sort(peer) == BGP_PEER_EBGP) { | |
407 | peer->local_as = as; | |
408 | if (BGP_IS_VALID_STATE_FOR_NOTIF( | |
409 | peer->status)) { | |
410 | peer->last_reset = | |
411 | PEER_DOWN_CONFED_ID_CHANGE; | |
412 | bgp_notify_send( | |
413 | peer, BGP_NOTIFY_CEASE, | |
414 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
415 | } else | |
416 | bgp_session_reset_safe(peer, &nnode); | |
417 | } | |
418 | } else { | |
419 | /* Not doign confederation before, so reset every | |
420 | non-local | |
421 | session */ | |
422 | if (peer_sort(peer) != BGP_PEER_IBGP) { | |
423 | /* Reset the local_as to be our EBGP one */ | |
424 | if (peer_sort(peer) == BGP_PEER_EBGP) | |
425 | peer->local_as = as; | |
426 | if (BGP_IS_VALID_STATE_FOR_NOTIF( | |
427 | peer->status)) { | |
428 | peer->last_reset = | |
429 | PEER_DOWN_CONFED_ID_CHANGE; | |
430 | bgp_notify_send( | |
431 | peer, BGP_NOTIFY_CEASE, | |
432 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
433 | } else | |
434 | bgp_session_reset_safe(peer, &nnode); | |
435 | } | |
436 | } | |
718e3744 | 437 | } |
d62a17ae | 438 | return 0; |
718e3744 | 439 | } |
440 | ||
d62a17ae | 441 | int bgp_confederation_id_unset(struct bgp *bgp) |
718e3744 | 442 | { |
d62a17ae | 443 | struct peer *peer; |
444 | struct listnode *node, *nnode; | |
445 | ||
446 | bgp->confed_id = 0; | |
447 | bgp_config_unset(bgp, BGP_CONFIG_CONFEDERATION); | |
718e3744 | 448 | |
d62a17ae | 449 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { |
450 | /* We're looking for peers who's AS is not local */ | |
451 | if (peer_sort(peer) != BGP_PEER_IBGP) { | |
452 | peer->local_as = bgp->as; | |
453 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
454 | peer->last_reset = PEER_DOWN_CONFED_ID_CHANGE; | |
455 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
456 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
457 | } | |
718e3744 | 458 | |
d62a17ae | 459 | else |
460 | bgp_session_reset_safe(peer, &nnode); | |
461 | } | |
462 | } | |
463 | return 0; | |
718e3744 | 464 | } |
465 | ||
d62a17ae | 466 | /* Is an AS part of the confed or not? */ |
467 | int bgp_confederation_peers_check(struct bgp *bgp, as_t as) | |
718e3744 | 468 | { |
d62a17ae | 469 | int i; |
718e3744 | 470 | |
d62a17ae | 471 | if (!bgp) |
472 | return 0; | |
718e3744 | 473 | |
d62a17ae | 474 | for (i = 0; i < bgp->confed_peers_cnt; i++) |
475 | if (bgp->confed_peers[i] == as) | |
476 | return 1; | |
718e3744 | 477 | |
d62a17ae | 478 | return 0; |
479 | } | |
718e3744 | 480 | |
d62a17ae | 481 | /* Add an AS to the confederation set. */ |
482 | int bgp_confederation_peers_add(struct bgp *bgp, as_t as) | |
483 | { | |
484 | struct peer *peer; | |
485 | struct listnode *node, *nnode; | |
486 | ||
487 | if (!bgp) | |
488 | return BGP_ERR_INVALID_BGP; | |
489 | ||
490 | if (bgp->as == as) | |
491 | return BGP_ERR_INVALID_AS; | |
492 | ||
493 | if (bgp_confederation_peers_check(bgp, as)) | |
494 | return -1; | |
495 | ||
496 | if (bgp->confed_peers) | |
497 | bgp->confed_peers = | |
498 | XREALLOC(MTYPE_BGP_CONFED_LIST, bgp->confed_peers, | |
499 | (bgp->confed_peers_cnt + 1) * sizeof(as_t)); | |
500 | else | |
501 | bgp->confed_peers = | |
502 | XMALLOC(MTYPE_BGP_CONFED_LIST, | |
503 | (bgp->confed_peers_cnt + 1) * sizeof(as_t)); | |
504 | ||
505 | bgp->confed_peers[bgp->confed_peers_cnt] = as; | |
506 | bgp->confed_peers_cnt++; | |
507 | ||
508 | if (bgp_config_check(bgp, BGP_CONFIG_CONFEDERATION)) { | |
509 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
510 | if (peer->as == as) { | |
511 | peer->local_as = bgp->as; | |
512 | if (BGP_IS_VALID_STATE_FOR_NOTIF( | |
513 | peer->status)) { | |
514 | peer->last_reset = | |
515 | PEER_DOWN_CONFED_PEER_CHANGE; | |
516 | bgp_notify_send( | |
517 | peer, BGP_NOTIFY_CEASE, | |
518 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
519 | } else | |
520 | bgp_session_reset_safe(peer, &nnode); | |
521 | } | |
522 | } | |
523 | } | |
524 | return 0; | |
718e3744 | 525 | } |
526 | ||
527 | /* Delete an AS from the confederation set. */ | |
d62a17ae | 528 | int bgp_confederation_peers_remove(struct bgp *bgp, as_t as) |
529 | { | |
530 | int i; | |
531 | int j; | |
532 | struct peer *peer; | |
533 | struct listnode *node, *nnode; | |
534 | ||
535 | if (!bgp) | |
536 | return -1; | |
537 | ||
538 | if (!bgp_confederation_peers_check(bgp, as)) | |
539 | return -1; | |
540 | ||
541 | for (i = 0; i < bgp->confed_peers_cnt; i++) | |
542 | if (bgp->confed_peers[i] == as) | |
543 | for (j = i + 1; j < bgp->confed_peers_cnt; j++) | |
544 | bgp->confed_peers[j - 1] = bgp->confed_peers[j]; | |
545 | ||
546 | bgp->confed_peers_cnt--; | |
547 | ||
548 | if (bgp->confed_peers_cnt == 0) { | |
549 | if (bgp->confed_peers) | |
550 | XFREE(MTYPE_BGP_CONFED_LIST, bgp->confed_peers); | |
551 | bgp->confed_peers = NULL; | |
552 | } else | |
553 | bgp->confed_peers = | |
554 | XREALLOC(MTYPE_BGP_CONFED_LIST, bgp->confed_peers, | |
555 | bgp->confed_peers_cnt * sizeof(as_t)); | |
556 | ||
557 | /* Now reset any peer who's remote AS has just been removed from the | |
558 | CONFED */ | |
559 | if (bgp_config_check(bgp, BGP_CONFIG_CONFEDERATION)) { | |
560 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
561 | if (peer->as == as) { | |
562 | peer->local_as = bgp->confed_id; | |
563 | if (BGP_IS_VALID_STATE_FOR_NOTIF( | |
564 | peer->status)) { | |
565 | peer->last_reset = | |
566 | PEER_DOWN_CONFED_PEER_CHANGE; | |
567 | bgp_notify_send( | |
568 | peer, BGP_NOTIFY_CEASE, | |
569 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
570 | } else | |
571 | bgp_session_reset_safe(peer, &nnode); | |
572 | } | |
573 | } | |
718e3744 | 574 | } |
718e3744 | 575 | |
d62a17ae | 576 | return 0; |
718e3744 | 577 | } |
6b0655a2 | 578 | |
718e3744 | 579 | /* Local preference configuration. */ |
d7c0a89a | 580 | int bgp_default_local_preference_set(struct bgp *bgp, uint32_t local_pref) |
718e3744 | 581 | { |
d62a17ae | 582 | if (!bgp) |
583 | return -1; | |
718e3744 | 584 | |
d62a17ae | 585 | bgp->default_local_pref = local_pref; |
718e3744 | 586 | |
d62a17ae | 587 | return 0; |
718e3744 | 588 | } |
589 | ||
d62a17ae | 590 | int bgp_default_local_preference_unset(struct bgp *bgp) |
718e3744 | 591 | { |
d62a17ae | 592 | if (!bgp) |
593 | return -1; | |
718e3744 | 594 | |
d62a17ae | 595 | bgp->default_local_pref = BGP_DEFAULT_LOCAL_PREF; |
718e3744 | 596 | |
d62a17ae | 597 | return 0; |
718e3744 | 598 | } |
6b0655a2 | 599 | |
3f9c7369 | 600 | /* Local preference configuration. */ |
d7c0a89a | 601 | int bgp_default_subgroup_pkt_queue_max_set(struct bgp *bgp, uint32_t queue_size) |
3f9c7369 | 602 | { |
d62a17ae | 603 | if (!bgp) |
604 | return -1; | |
3f9c7369 | 605 | |
d62a17ae | 606 | bgp->default_subgroup_pkt_queue_max = queue_size; |
3f9c7369 | 607 | |
d62a17ae | 608 | return 0; |
3f9c7369 DS |
609 | } |
610 | ||
d62a17ae | 611 | int bgp_default_subgroup_pkt_queue_max_unset(struct bgp *bgp) |
3f9c7369 | 612 | { |
d62a17ae | 613 | if (!bgp) |
614 | return -1; | |
615 | bgp->default_subgroup_pkt_queue_max = | |
616 | BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX; | |
3f9c7369 | 617 | |
d62a17ae | 618 | return 0; |
3f9c7369 DS |
619 | } |
620 | ||
f14e6fdb | 621 | /* Listen limit configuration. */ |
d62a17ae | 622 | int bgp_listen_limit_set(struct bgp *bgp, int listen_limit) |
f14e6fdb | 623 | { |
d62a17ae | 624 | if (!bgp) |
625 | return -1; | |
f14e6fdb | 626 | |
d62a17ae | 627 | bgp->dynamic_neighbors_limit = listen_limit; |
f14e6fdb | 628 | |
d62a17ae | 629 | return 0; |
f14e6fdb DS |
630 | } |
631 | ||
d62a17ae | 632 | int bgp_listen_limit_unset(struct bgp *bgp) |
f14e6fdb | 633 | { |
d62a17ae | 634 | if (!bgp) |
635 | return -1; | |
f14e6fdb | 636 | |
d62a17ae | 637 | bgp->dynamic_neighbors_limit = BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT; |
f14e6fdb | 638 | |
d62a17ae | 639 | return 0; |
f14e6fdb DS |
640 | } |
641 | ||
5c525538 RW |
642 | int bgp_map_afi_safi_iana2int(iana_afi_t pkt_afi, iana_safi_t pkt_safi, |
643 | afi_t *afi, safi_t *safi) | |
9cabb64b | 644 | { |
d62a17ae | 645 | /* Map from IANA values to internal values, return error if |
646 | * values are unrecognized. | |
647 | */ | |
648 | *afi = afi_iana2int(pkt_afi); | |
649 | *safi = safi_iana2int(pkt_safi); | |
650 | if (*afi == AFI_MAX || *safi == SAFI_MAX) | |
651 | return -1; | |
9cabb64b | 652 | |
d62a17ae | 653 | return 0; |
9cabb64b | 654 | } |
655 | ||
d62a17ae | 656 | int bgp_map_afi_safi_int2iana(afi_t afi, safi_t safi, iana_afi_t *pkt_afi, |
5c525538 | 657 | iana_safi_t *pkt_safi) |
9cabb64b | 658 | { |
d62a17ae | 659 | /* Map from internal values to IANA values, return error if |
660 | * internal values are bad (unexpected). | |
661 | */ | |
662 | if (afi == AFI_MAX || safi == SAFI_MAX) | |
663 | return -1; | |
664 | *pkt_afi = afi_int2iana(afi); | |
665 | *pkt_safi = safi_int2iana(safi); | |
666 | return 0; | |
9cabb64b | 667 | } |
668 | ||
d62a17ae | 669 | struct peer_af *peer_af_create(struct peer *peer, afi_t afi, safi_t safi) |
3f9c7369 | 670 | { |
d62a17ae | 671 | struct peer_af *af; |
672 | int afid; | |
3f9c7369 | 673 | |
d62a17ae | 674 | if (!peer) |
675 | return NULL; | |
3f9c7369 | 676 | |
d62a17ae | 677 | afid = afindex(afi, safi); |
678 | if (afid >= BGP_AF_MAX) | |
679 | return NULL; | |
3f9c7369 | 680 | |
d62a17ae | 681 | assert(peer->peer_af_array[afid] == NULL); |
3f9c7369 | 682 | |
d62a17ae | 683 | /* Allocate new peer af */ |
684 | af = XCALLOC(MTYPE_BGP_PEER_AF, sizeof(struct peer_af)); | |
c8560b44 | 685 | |
d62a17ae | 686 | if (af == NULL) { |
687 | zlog_err("Could not create af structure for peer %s", | |
688 | peer->host); | |
689 | return NULL; | |
690 | } | |
c8560b44 | 691 | |
d62a17ae | 692 | peer->peer_af_array[afid] = af; |
693 | af->afi = afi; | |
694 | af->safi = safi; | |
695 | af->afid = afid; | |
696 | af->peer = peer; | |
3f9c7369 | 697 | |
d62a17ae | 698 | return af; |
3f9c7369 DS |
699 | } |
700 | ||
d62a17ae | 701 | struct peer_af *peer_af_find(struct peer *peer, afi_t afi, safi_t safi) |
3f9c7369 | 702 | { |
d62a17ae | 703 | int afid; |
3f9c7369 | 704 | |
d62a17ae | 705 | if (!peer) |
706 | return NULL; | |
3f9c7369 | 707 | |
d62a17ae | 708 | afid = afindex(afi, safi); |
709 | if (afid >= BGP_AF_MAX) | |
710 | return NULL; | |
3f9c7369 | 711 | |
d62a17ae | 712 | return peer->peer_af_array[afid]; |
3f9c7369 DS |
713 | } |
714 | ||
d62a17ae | 715 | int peer_af_delete(struct peer *peer, afi_t afi, safi_t safi) |
3f9c7369 | 716 | { |
d62a17ae | 717 | struct peer_af *af; |
718 | int afid; | |
3f9c7369 | 719 | |
d62a17ae | 720 | if (!peer) |
721 | return -1; | |
3f9c7369 | 722 | |
d62a17ae | 723 | afid = afindex(afi, safi); |
724 | if (afid >= BGP_AF_MAX) | |
725 | return -1; | |
3f9c7369 | 726 | |
d62a17ae | 727 | af = peer->peer_af_array[afid]; |
728 | if (!af) | |
729 | return -1; | |
3f9c7369 | 730 | |
d62a17ae | 731 | bgp_stop_announce_route_timer(af); |
3f9c7369 | 732 | |
d62a17ae | 733 | if (PAF_SUBGRP(af)) { |
734 | if (BGP_DEBUG(update_groups, UPDATE_GROUPS)) | |
735 | zlog_debug("u%" PRIu64 ":s%" PRIu64 " remove peer %s", | |
736 | af->subgroup->update_group->id, | |
737 | af->subgroup->id, peer->host); | |
738 | } | |
3f9c7369 | 739 | |
d62a17ae | 740 | update_subgroup_remove_peer(af->subgroup, af); |
3f9c7369 | 741 | |
d62a17ae | 742 | peer->peer_af_array[afid] = NULL; |
743 | XFREE(MTYPE_BGP_PEER_AF, af); | |
744 | return 0; | |
3f9c7369 DS |
745 | } |
746 | ||
eb821189 | 747 | /* Peer comparison function for sorting. */ |
d62a17ae | 748 | int peer_cmp(struct peer *p1, struct peer *p2) |
718e3744 | 749 | { |
d62a17ae | 750 | if (p1->group && !p2->group) |
751 | return -1; | |
0aaa34db | 752 | |
d62a17ae | 753 | if (!p1->group && p2->group) |
754 | return 1; | |
0aaa34db | 755 | |
d62a17ae | 756 | if (p1->group == p2->group) { |
757 | if (p1->conf_if && !p2->conf_if) | |
758 | return -1; | |
0aaa34db | 759 | |
d62a17ae | 760 | if (!p1->conf_if && p2->conf_if) |
761 | return 1; | |
0aaa34db | 762 | |
d62a17ae | 763 | if (p1->conf_if && p2->conf_if) |
764 | return if_cmp_name_func(p1->conf_if, p2->conf_if); | |
765 | } else | |
766 | return strcmp(p1->group->name, p2->group->name); | |
0aaa34db | 767 | |
d62a17ae | 768 | return sockunion_cmp(&p1->su, &p2->su); |
718e3744 | 769 | } |
770 | ||
d62a17ae | 771 | static unsigned int peer_hash_key_make(void *p) |
dd793e4a | 772 | { |
d62a17ae | 773 | struct peer *peer = p; |
774 | return sockunion_hash(&peer->su); | |
dd793e4a DW |
775 | } |
776 | ||
40520c36 | 777 | static int peer_hash_same(const void *p1, const void *p2) |
dd793e4a | 778 | { |
d62a17ae | 779 | const struct peer *peer1 = p1; |
780 | const struct peer *peer2 = p2; | |
781 | return (sockunion_same(&peer1->su, &peer2->su) | |
782 | && CHECK_FLAG(peer1->flags, PEER_FLAG_CONFIG_NODE) | |
783 | == CHECK_FLAG(peer2->flags, PEER_FLAG_CONFIG_NODE)); | |
dd793e4a DW |
784 | } |
785 | ||
9fb964de PM |
786 | void peer_flag_inherit(struct peer *peer, uint32_t flag) |
787 | { | |
788 | bool group_val; | |
789 | ||
790 | /* Skip if peer is not a peer-group member. */ | |
791 | if (!peer_group_active(peer)) | |
792 | return; | |
793 | ||
794 | /* Unset override flag to signal inheritance from peer-group. */ | |
795 | UNSET_FLAG(peer->flags_override, flag); | |
796 | ||
797 | /* | |
798 | * Inherit flag state from peer-group. If the flag of the peer-group is | |
799 | * not being inverted, the peer must inherit the inverse of the current | |
800 | * peer-group flag state. | |
801 | */ | |
802 | group_val = CHECK_FLAG(peer->group->conf->flags, flag); | |
803 | if (!CHECK_FLAG(peer->group->conf->flags_invert, flag) | |
804 | && CHECK_FLAG(peer->flags_invert, flag)) | |
805 | COND_FLAG(peer->flags, flag, !group_val); | |
806 | else | |
807 | COND_FLAG(peer->flags, flag, group_val); | |
808 | } | |
809 | ||
d7c0a89a | 810 | int peer_af_flag_check(struct peer *peer, afi_t afi, safi_t safi, uint32_t flag) |
718e3744 | 811 | { |
d62a17ae | 812 | return CHECK_FLAG(peer->af_flags[afi][safi], flag); |
718e3744 | 813 | } |
814 | ||
598ce6bd PM |
815 | void peer_af_flag_inherit(struct peer *peer, afi_t afi, safi_t safi, |
816 | uint32_t flag) | |
88b8ed8d | 817 | { |
527de3dc PM |
818 | bool group_val; |
819 | ||
598ce6bd PM |
820 | /* Skip if peer is not a peer-group member. */ |
821 | if (!peer_group_active(peer)) | |
822 | return; | |
88b8ed8d | 823 | |
598ce6bd PM |
824 | /* Unset override flag to signal inheritance from peer-group. */ |
825 | UNSET_FLAG(peer->af_flags_override[afi][safi], flag); | |
88b8ed8d | 826 | |
527de3dc PM |
827 | /* |
828 | * Inherit flag state from peer-group. If the flag of the peer-group is | |
829 | * not being inverted, the peer must inherit the inverse of the current | |
830 | * peer-group flag state. | |
831 | */ | |
832 | group_val = CHECK_FLAG(peer->group->conf->af_flags[afi][safi], flag); | |
833 | if (!CHECK_FLAG(peer->group->conf->af_flags_invert[afi][safi], flag) | |
834 | && CHECK_FLAG(peer->af_flags_invert[afi][safi], flag)) | |
835 | COND_FLAG(peer->af_flags[afi][safi], flag, !group_val); | |
598ce6bd | 836 | else |
527de3dc | 837 | COND_FLAG(peer->af_flags[afi][safi], flag, group_val); |
598ce6bd | 838 | } |
88b8ed8d | 839 | |
9fb964de PM |
840 | static bool peergroup_flag_check(struct peer *peer, uint32_t flag) |
841 | { | |
842 | if (!peer_group_active(peer)) { | |
843 | if (CHECK_FLAG(peer->flags_invert, flag)) | |
844 | return !CHECK_FLAG(peer->flags, flag); | |
845 | else | |
846 | return !!CHECK_FLAG(peer->flags, flag); | |
847 | } | |
848 | ||
849 | return !!CHECK_FLAG(peer->flags_override, flag); | |
850 | } | |
851 | ||
598ce6bd PM |
852 | static bool peergroup_af_flag_check(struct peer *peer, afi_t afi, safi_t safi, |
853 | uint32_t flag) | |
854 | { | |
27c05d4d PM |
855 | if (!peer_group_active(peer)) { |
856 | if (CHECK_FLAG(peer->af_flags_invert[afi][safi], flag)) | |
857 | return !peer_af_flag_check(peer, afi, safi, flag); | |
858 | else | |
859 | return !!peer_af_flag_check(peer, afi, safi, flag); | |
d62a17ae | 860 | } |
88b8ed8d | 861 | |
598ce6bd | 862 | return !!CHECK_FLAG(peer->af_flags_override[afi][safi], flag); |
88b8ed8d DW |
863 | } |
864 | ||
70ee29b4 PM |
865 | static bool peergroup_filter_check(struct peer *peer, afi_t afi, safi_t safi, |
866 | uint8_t type, int direct) | |
867 | { | |
868 | struct bgp_filter *filter; | |
869 | ||
870 | if (peer_group_active(peer)) | |
871 | return !!CHECK_FLAG(peer->filter_override[afi][safi][direct], | |
872 | type); | |
873 | ||
874 | filter = &peer->filter[afi][safi]; | |
875 | switch (type) { | |
876 | case PEER_FT_DISTRIBUTE_LIST: | |
877 | return !!(filter->dlist[direct].name); | |
878 | case PEER_FT_FILTER_LIST: | |
879 | return !!(filter->aslist[direct].name); | |
880 | case PEER_FT_PREFIX_LIST: | |
881 | return !!(filter->plist[direct].name); | |
882 | case PEER_FT_ROUTE_MAP: | |
883 | return !!(filter->map[direct].name); | |
884 | case PEER_FT_UNSUPPRESS_MAP: | |
885 | return !!(filter->usmap.name); | |
886 | default: | |
887 | return false; | |
888 | } | |
88b8ed8d DW |
889 | } |
890 | ||
718e3744 | 891 | /* Reset all address family specific configuration. */ |
d62a17ae | 892 | static void peer_af_flag_reset(struct peer *peer, afi_t afi, safi_t safi) |
718e3744 | 893 | { |
d62a17ae | 894 | int i; |
895 | struct bgp_filter *filter; | |
896 | char orf_name[BUFSIZ]; | |
718e3744 | 897 | |
d62a17ae | 898 | filter = &peer->filter[afi][safi]; |
718e3744 | 899 | |
d62a17ae | 900 | /* Clear neighbor filter and route-map */ |
901 | for (i = FILTER_IN; i < FILTER_MAX; i++) { | |
902 | if (filter->dlist[i].name) { | |
903 | XFREE(MTYPE_BGP_FILTER_NAME, filter->dlist[i].name); | |
904 | filter->dlist[i].name = NULL; | |
905 | } | |
906 | if (filter->plist[i].name) { | |
907 | XFREE(MTYPE_BGP_FILTER_NAME, filter->plist[i].name); | |
908 | filter->plist[i].name = NULL; | |
909 | } | |
910 | if (filter->aslist[i].name) { | |
911 | XFREE(MTYPE_BGP_FILTER_NAME, filter->aslist[i].name); | |
912 | filter->aslist[i].name = NULL; | |
913 | } | |
718e3744 | 914 | } |
d62a17ae | 915 | for (i = RMAP_IN; i < RMAP_MAX; i++) { |
916 | if (filter->map[i].name) { | |
917 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[i].name); | |
918 | filter->map[i].name = NULL; | |
919 | } | |
718e3744 | 920 | } |
718e3744 | 921 | |
d62a17ae | 922 | /* Clear unsuppress map. */ |
923 | if (filter->usmap.name) | |
924 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
925 | filter->usmap.name = NULL; | |
926 | filter->usmap.map = NULL; | |
718e3744 | 927 | |
d62a17ae | 928 | /* Clear neighbor's all address family flags. */ |
929 | peer->af_flags[afi][safi] = 0; | |
718e3744 | 930 | |
d62a17ae | 931 | /* Clear neighbor's all address family sflags. */ |
932 | peer->af_sflags[afi][safi] = 0; | |
718e3744 | 933 | |
d62a17ae | 934 | /* Clear neighbor's all address family capabilities. */ |
935 | peer->af_cap[afi][safi] = 0; | |
718e3744 | 936 | |
d62a17ae | 937 | /* Clear ORF info */ |
938 | peer->orf_plist[afi][safi] = NULL; | |
939 | sprintf(orf_name, "%s.%d.%d", peer->host, afi, safi); | |
940 | prefix_bgp_orf_remove_all(afi, orf_name); | |
941 | ||
942 | /* Set default neighbor send-community. */ | |
943 | if (!bgp_option_check(BGP_OPT_CONFIG_CISCO)) { | |
944 | SET_FLAG(peer->af_flags[afi][safi], PEER_FLAG_SEND_COMMUNITY); | |
945 | SET_FLAG(peer->af_flags[afi][safi], | |
946 | PEER_FLAG_SEND_EXT_COMMUNITY); | |
947 | SET_FLAG(peer->af_flags[afi][safi], | |
948 | PEER_FLAG_SEND_LARGE_COMMUNITY); | |
27c05d4d PM |
949 | |
950 | SET_FLAG(peer->af_flags_invert[afi][safi], | |
951 | PEER_FLAG_SEND_COMMUNITY); | |
952 | SET_FLAG(peer->af_flags_invert[afi][safi], | |
953 | PEER_FLAG_SEND_EXT_COMMUNITY); | |
954 | SET_FLAG(peer->af_flags_invert[afi][safi], | |
955 | PEER_FLAG_SEND_LARGE_COMMUNITY); | |
d62a17ae | 956 | } |
718e3744 | 957 | |
d62a17ae | 958 | /* Clear neighbor default_originate_rmap */ |
959 | if (peer->default_rmap[afi][safi].name) | |
960 | XFREE(MTYPE_ROUTE_MAP_NAME, peer->default_rmap[afi][safi].name); | |
961 | peer->default_rmap[afi][safi].name = NULL; | |
962 | peer->default_rmap[afi][safi].map = NULL; | |
718e3744 | 963 | |
d62a17ae | 964 | /* Clear neighbor maximum-prefix */ |
965 | peer->pmax[afi][safi] = 0; | |
966 | peer->pmax_threshold[afi][safi] = MAXIMUM_PREFIX_THRESHOLD_DEFAULT; | |
718e3744 | 967 | } |
968 | ||
969 | /* peer global config reset */ | |
d62a17ae | 970 | static void peer_global_config_reset(struct peer *peer) |
718e3744 | 971 | { |
89898ced | 972 | int saved_flags = 0; |
8ffedcea | 973 | |
d62a17ae | 974 | peer->change_local_as = 0; |
975 | peer->ttl = (peer_sort(peer) == BGP_PEER_IBGP ? MAXTTL : 1); | |
976 | if (peer->update_source) { | |
977 | sockunion_free(peer->update_source); | |
978 | peer->update_source = NULL; | |
979 | } | |
980 | if (peer->update_if) { | |
981 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); | |
982 | peer->update_if = NULL; | |
983 | } | |
718e3744 | 984 | |
d62a17ae | 985 | if (peer_sort(peer) == BGP_PEER_IBGP) |
986 | peer->v_routeadv = BGP_DEFAULT_IBGP_ROUTEADV; | |
987 | else | |
988 | peer->v_routeadv = BGP_DEFAULT_EBGP_ROUTEADV; | |
718e3744 | 989 | |
89898ced QY |
990 | /* These are per-peer specific flags and so we must preserve them */ |
991 | saved_flags |= CHECK_FLAG(peer->flags, PEER_FLAG_IFPEER_V6ONLY); | |
992 | saved_flags |= CHECK_FLAG(peer->flags, PEER_FLAG_SHUTDOWN); | |
d62a17ae | 993 | peer->flags = 0; |
89898ced | 994 | SET_FLAG(peer->flags, saved_flags); |
8ffedcea | 995 | |
d62a17ae | 996 | peer->holdtime = 0; |
997 | peer->keepalive = 0; | |
998 | peer->connect = 0; | |
999 | peer->v_connect = BGP_DEFAULT_CONNECT_RETRY; | |
821a359a | 1000 | |
d62a17ae | 1001 | /* Reset some other configs back to defaults. */ |
1002 | peer->v_start = BGP_INIT_START_TIMER; | |
1003 | peer->password = NULL; | |
1004 | peer->local_id = peer->bgp->router_id; | |
1005 | peer->v_holdtime = peer->bgp->default_holdtime; | |
1006 | peer->v_keepalive = peer->bgp->default_keepalive; | |
821a359a | 1007 | |
d62a17ae | 1008 | bfd_info_free(&(peer->bfd_info)); |
7f342629 | 1009 | |
d62a17ae | 1010 | /* Set back the CONFIG_NODE flag. */ |
1011 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); | |
718e3744 | 1012 | } |
1013 | ||
6d85b15b | 1014 | /* Check peer's AS number and determines if this peer is IBGP or EBGP */ |
82417ac2 | 1015 | static inline bgp_peer_sort_t peer_calc_sort(struct peer *peer) |
718e3744 | 1016 | { |
d62a17ae | 1017 | struct bgp *bgp; |
718e3744 | 1018 | |
d62a17ae | 1019 | bgp = peer->bgp; |
718e3744 | 1020 | |
d62a17ae | 1021 | /* Peer-group */ |
1022 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
1023 | if (peer->as_type == AS_INTERNAL) | |
1024 | return BGP_PEER_IBGP; | |
66b199b2 | 1025 | |
d62a17ae | 1026 | else if (peer->as_type == AS_EXTERNAL) |
1027 | return BGP_PEER_EBGP; | |
66b199b2 | 1028 | |
d62a17ae | 1029 | else if (peer->as_type == AS_SPECIFIED && peer->as) |
1030 | return (bgp->as == peer->as ? BGP_PEER_IBGP | |
1031 | : BGP_PEER_EBGP); | |
66b199b2 | 1032 | |
d62a17ae | 1033 | else { |
1034 | struct peer *peer1; | |
1035 | peer1 = listnode_head(peer->group->peer); | |
1036 | ||
1037 | if (peer1) | |
1038 | return peer1->sort; | |
1039 | } | |
1040 | return BGP_PEER_INTERNAL; | |
1041 | } | |
1042 | ||
1043 | /* Normal peer */ | |
1044 | if (bgp && CHECK_FLAG(bgp->config, BGP_CONFIG_CONFEDERATION)) { | |
1045 | if (peer->local_as == 0) | |
1046 | return BGP_PEER_INTERNAL; | |
1047 | ||
1048 | if (peer->local_as == peer->as) { | |
1049 | if (bgp->as == bgp->confed_id) { | |
1050 | if (peer->local_as == bgp->as) | |
1051 | return BGP_PEER_IBGP; | |
1052 | else | |
1053 | return BGP_PEER_EBGP; | |
1054 | } else { | |
1055 | if (peer->local_as == bgp->confed_id) | |
1056 | return BGP_PEER_EBGP; | |
1057 | else | |
1058 | return BGP_PEER_IBGP; | |
1059 | } | |
1060 | } | |
1061 | ||
1062 | if (bgp_confederation_peers_check(bgp, peer->as)) | |
1063 | return BGP_PEER_CONFED; | |
1064 | ||
1065 | return BGP_PEER_EBGP; | |
1066 | } else { | |
1067 | if (peer->as_type != AS_SPECIFIED) | |
1068 | return (peer->as_type == AS_INTERNAL ? BGP_PEER_IBGP | |
1069 | : BGP_PEER_EBGP); | |
1070 | ||
1071 | return (peer->local_as == 0 | |
1072 | ? BGP_PEER_INTERNAL | |
1073 | : peer->local_as == peer->as ? BGP_PEER_IBGP | |
1074 | : BGP_PEER_EBGP); | |
1075 | } | |
718e3744 | 1076 | } |
1077 | ||
6d85b15b | 1078 | /* Calculate and cache the peer "sort" */ |
d62a17ae | 1079 | bgp_peer_sort_t peer_sort(struct peer *peer) |
1080 | { | |
1081 | peer->sort = peer_calc_sort(peer); | |
1082 | return peer->sort; | |
1083 | } | |
1084 | ||
1085 | static void peer_free(struct peer *peer) | |
1086 | { | |
1087 | assert(peer->status == Deleted); | |
1088 | ||
1089 | QOBJ_UNREG(peer); | |
1090 | ||
1091 | /* this /ought/ to have been done already through bgp_stop earlier, | |
1092 | * but just to be sure.. | |
1093 | */ | |
1094 | bgp_timer_set(peer); | |
424ab01d QY |
1095 | bgp_reads_off(peer); |
1096 | bgp_writes_off(peer); | |
1097 | assert(!peer->t_write); | |
1098 | assert(!peer->t_read); | |
d62a17ae | 1099 | BGP_EVENT_FLUSH(peer); |
1100 | ||
424ab01d QY |
1101 | pthread_mutex_destroy(&peer->io_mtx); |
1102 | ||
d62a17ae | 1103 | /* Free connected nexthop, if present */ |
1104 | if (CHECK_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE) | |
1105 | && !peer_dynamic_neighbor(peer)) | |
1106 | bgp_delete_connected_nexthop(family2afi(peer->su.sa.sa_family), | |
1107 | peer); | |
1108 | ||
1109 | XFREE(MTYPE_PEER_TX_SHUTDOWN_MSG, peer->tx_shutdown_message); | |
1110 | ||
1111 | if (peer->desc) { | |
1112 | XFREE(MTYPE_PEER_DESC, peer->desc); | |
1113 | peer->desc = NULL; | |
1114 | } | |
1115 | ||
1116 | /* Free allocated host character. */ | |
1117 | if (peer->host) { | |
1118 | XFREE(MTYPE_BGP_PEER_HOST, peer->host); | |
1119 | peer->host = NULL; | |
1120 | } | |
1121 | ||
1122 | if (peer->domainname) { | |
1123 | XFREE(MTYPE_BGP_PEER_HOST, peer->domainname); | |
1124 | peer->domainname = NULL; | |
1125 | } | |
1126 | ||
1127 | if (peer->ifname) { | |
1128 | XFREE(MTYPE_BGP_PEER_IFNAME, peer->ifname); | |
1129 | peer->ifname = NULL; | |
1130 | } | |
1131 | ||
1132 | /* Update source configuration. */ | |
1133 | if (peer->update_source) { | |
1134 | sockunion_free(peer->update_source); | |
1135 | peer->update_source = NULL; | |
1136 | } | |
1137 | ||
1138 | if (peer->update_if) { | |
1139 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); | |
1140 | peer->update_if = NULL; | |
1141 | } | |
1142 | ||
1143 | if (peer->notify.data) | |
1144 | XFREE(MTYPE_TMP, peer->notify.data); | |
1145 | memset(&peer->notify, 0, sizeof(struct bgp_notify)); | |
1146 | ||
e208c8f9 DS |
1147 | if (peer->clear_node_queue) |
1148 | work_queue_free_and_null(&peer->clear_node_queue); | |
d62a17ae | 1149 | |
1150 | bgp_sync_delete(peer); | |
1151 | ||
1152 | if (peer->conf_if) { | |
1153 | XFREE(MTYPE_PEER_CONF_IF, peer->conf_if); | |
1154 | peer->conf_if = NULL; | |
1155 | } | |
1156 | ||
1157 | bfd_info_free(&(peer->bfd_info)); | |
1158 | ||
1159 | bgp_unlock(peer->bgp); | |
1160 | ||
1161 | memset(peer, 0, sizeof(struct peer)); | |
1162 | ||
1163 | XFREE(MTYPE_BGP_PEER, peer); | |
1164 | } | |
1165 | ||
200df115 | 1166 | /* increase reference count on a struct peer */ |
d62a17ae | 1167 | struct peer *peer_lock_with_caller(const char *name, struct peer *peer) |
200df115 | 1168 | { |
d62a17ae | 1169 | assert(peer && (peer->lock >= 0)); |
28066f4b DS |
1170 | |
1171 | #if 0 | |
1172 | zlog_debug("%s peer_lock %p %d", name, peer, peer->lock); | |
1173 | #endif | |
d62a17ae | 1174 | |
1175 | peer->lock++; | |
1176 | ||
1177 | return peer; | |
200df115 | 1178 | } |
1179 | ||
1180 | /* decrease reference count on a struct peer | |
1181 | * struct peer is freed and NULL returned if last reference | |
1182 | */ | |
d62a17ae | 1183 | struct peer *peer_unlock_with_caller(const char *name, struct peer *peer) |
200df115 | 1184 | { |
d62a17ae | 1185 | assert(peer && (peer->lock > 0)); |
28066f4b DS |
1186 | |
1187 | #if 0 | |
1188 | zlog_debug("%s peer_unlock %p %d", name, peer, peer->lock); | |
1189 | #endif | |
200df115 | 1190 | |
d62a17ae | 1191 | peer->lock--; |
1192 | ||
1193 | if (peer->lock == 0) { | |
1194 | peer_free(peer); | |
1195 | return NULL; | |
1196 | } | |
1197 | ||
1198 | return peer; | |
200df115 | 1199 | } |
1ff9a340 | 1200 | |
200df115 | 1201 | /* Allocate new peer object, implicitely locked. */ |
d62a17ae | 1202 | struct peer *peer_new(struct bgp *bgp) |
1203 | { | |
1204 | afi_t afi; | |
1205 | safi_t safi; | |
1206 | struct peer *peer; | |
1207 | struct servent *sp; | |
1208 | ||
1209 | /* bgp argument is absolutely required */ | |
1210 | assert(bgp); | |
1211 | if (!bgp) | |
1212 | return NULL; | |
1213 | ||
1214 | /* Allocate new peer. */ | |
1215 | peer = XCALLOC(MTYPE_BGP_PEER, sizeof(struct peer)); | |
1216 | ||
1217 | /* Set default value. */ | |
1218 | peer->fd = -1; | |
1219 | peer->v_start = BGP_INIT_START_TIMER; | |
1220 | peer->v_connect = BGP_DEFAULT_CONNECT_RETRY; | |
1221 | peer->status = Idle; | |
1222 | peer->ostatus = Idle; | |
1223 | peer->cur_event = peer->last_event = peer->last_major_event = 0; | |
92375c91 | 1224 | peer->bgp = bgp_lock(bgp); |
d62a17ae | 1225 | peer = peer_lock(peer); /* initial reference */ |
d62a17ae | 1226 | peer->password = NULL; |
1227 | ||
27c05d4d | 1228 | /* Set default flags. */ |
05c7a1cc QY |
1229 | FOREACH_AFI_SAFI (afi, safi) { |
1230 | if (!bgp_option_check(BGP_OPT_CONFIG_CISCO)) { | |
1231 | SET_FLAG(peer->af_flags[afi][safi], | |
1232 | PEER_FLAG_SEND_COMMUNITY); | |
1233 | SET_FLAG(peer->af_flags[afi][safi], | |
1234 | PEER_FLAG_SEND_EXT_COMMUNITY); | |
1235 | SET_FLAG(peer->af_flags[afi][safi], | |
1236 | PEER_FLAG_SEND_LARGE_COMMUNITY); | |
27c05d4d PM |
1237 | |
1238 | SET_FLAG(peer->af_flags_invert[afi][safi], | |
1239 | PEER_FLAG_SEND_COMMUNITY); | |
1240 | SET_FLAG(peer->af_flags_invert[afi][safi], | |
1241 | PEER_FLAG_SEND_EXT_COMMUNITY); | |
1242 | SET_FLAG(peer->af_flags_invert[afi][safi], | |
1243 | PEER_FLAG_SEND_LARGE_COMMUNITY); | |
d62a17ae | 1244 | } |
05c7a1cc | 1245 | } |
637315fc MK |
1246 | |
1247 | /* set nexthop-unchanged for l2vpn evpn by default */ | |
1248 | SET_FLAG(peer->af_flags[AFI_L2VPN][SAFI_EVPN], | |
1249 | PEER_FLAG_NEXTHOP_UNCHANGED); | |
1250 | ||
d62a17ae | 1251 | SET_FLAG(peer->sflags, PEER_STATUS_CAPABILITY_OPEN); |
718e3744 | 1252 | |
d62a17ae | 1253 | /* Create buffers. */ |
424ab01d | 1254 | peer->ibuf = stream_fifo_new(); |
d62a17ae | 1255 | peer->obuf = stream_fifo_new(); |
424ab01d | 1256 | pthread_mutex_init(&peer->io_mtx, NULL); |
0a91ff55 | 1257 | |
424ab01d | 1258 | /* We use a larger buffer for peer->obuf_work in the event that: |
d62a17ae | 1259 | * - We RX a BGP_UPDATE where the attributes alone are just |
1260 | * under BGP_MAX_PACKET_SIZE | |
1261 | * - The user configures an outbound route-map that does many as-path | |
09f6d019 QY |
1262 | * prepends or adds many communities. At most they can have |
1263 | * CMD_ARGC_MAX args in a route-map so there is a finite limit on how | |
1264 | * large they can make the attributes. | |
d62a17ae | 1265 | * |
1266 | * Having a buffer with BGP_MAX_PACKET_SIZE_OVERFLOW allows us to avoid | |
09f6d019 QY |
1267 | * bounds checking for every single attribute as we construct an |
1268 | * UPDATE. | |
d62a17ae | 1269 | */ |
424ab01d | 1270 | peer->obuf_work = |
d62a17ae | 1271 | stream_new(BGP_MAX_PACKET_SIZE + BGP_MAX_PACKET_SIZE_OVERFLOW); |
74ffbfe6 QY |
1272 | peer->ibuf_work = |
1273 | ringbuf_new(BGP_MAX_PACKET_SIZE * BGP_READ_PACKET_MAX); | |
1274 | ||
d62a17ae | 1275 | peer->scratch = stream_new(BGP_MAX_PACKET_SIZE); |
718e3744 | 1276 | |
d62a17ae | 1277 | bgp_sync_init(peer); |
718e3744 | 1278 | |
d62a17ae | 1279 | /* Get service port number. */ |
1280 | sp = getservbyname("bgp", "tcp"); | |
1281 | peer->port = (sp == NULL) ? BGP_PORT_DEFAULT : ntohs(sp->s_port); | |
718e3744 | 1282 | |
d62a17ae | 1283 | QOBJ_REG(peer, peer); |
1284 | return peer; | |
718e3744 | 1285 | } |
1286 | ||
1ff9a340 DS |
1287 | /* |
1288 | * This function is invoked when a duplicate peer structure associated with | |
1289 | * a neighbor is being deleted. If this about-to-be-deleted structure is | |
1290 | * the one with all the config, then we have to copy over the info. | |
1291 | */ | |
d62a17ae | 1292 | void peer_xfer_config(struct peer *peer_dst, struct peer *peer_src) |
1293 | { | |
1294 | struct peer_af *paf; | |
1295 | afi_t afi; | |
1296 | safi_t safi; | |
1297 | int afidx; | |
1298 | ||
1299 | assert(peer_src); | |
1300 | assert(peer_dst); | |
1301 | ||
1302 | /* The following function is used by both peer group config copy to | |
1303 | * individual peer and when we transfer config | |
1304 | */ | |
1305 | if (peer_src->change_local_as) | |
1306 | peer_dst->change_local_as = peer_src->change_local_as; | |
1307 | ||
1308 | /* peer flags apply */ | |
1309 | peer_dst->flags = peer_src->flags; | |
1310 | peer_dst->cap = peer_src->cap; | |
d62a17ae | 1311 | |
1312 | peer_dst->local_as = peer_src->local_as; | |
d62a17ae | 1313 | peer_dst->port = peer_src->port; |
82417ac2 | 1314 | (void)peer_sort(peer_dst); |
d62a17ae | 1315 | peer_dst->rmap_type = peer_src->rmap_type; |
1316 | ||
1317 | /* Timers */ | |
1318 | peer_dst->holdtime = peer_src->holdtime; | |
1319 | peer_dst->keepalive = peer_src->keepalive; | |
1320 | peer_dst->connect = peer_src->connect; | |
1321 | peer_dst->v_holdtime = peer_src->v_holdtime; | |
1322 | peer_dst->v_keepalive = peer_src->v_keepalive; | |
1323 | peer_dst->routeadv = peer_src->routeadv; | |
1324 | peer_dst->v_routeadv = peer_src->v_routeadv; | |
1325 | ||
1326 | /* password apply */ | |
1327 | if (peer_src->password && !peer_dst->password) | |
1328 | peer_dst->password = | |
1329 | XSTRDUP(MTYPE_PEER_PASSWORD, peer_src->password); | |
1330 | ||
05c7a1cc QY |
1331 | FOREACH_AFI_SAFI (afi, safi) { |
1332 | peer_dst->afc[afi][safi] = peer_src->afc[afi][safi]; | |
1333 | peer_dst->af_flags[afi][safi] = peer_src->af_flags[afi][safi]; | |
1334 | peer_dst->allowas_in[afi][safi] = | |
1335 | peer_src->allowas_in[afi][safi]; | |
1336 | peer_dst->weight[afi][safi] = peer_src->weight[afi][safi]; | |
1337 | } | |
d62a17ae | 1338 | |
1339 | for (afidx = BGP_AF_START; afidx < BGP_AF_MAX; afidx++) { | |
1340 | paf = peer_src->peer_af_array[afidx]; | |
1341 | if (paf != NULL) | |
1342 | peer_af_create(peer_dst, paf->afi, paf->safi); | |
1343 | } | |
1344 | ||
1345 | /* update-source apply */ | |
1346 | if (peer_src->update_source) { | |
1347 | if (peer_dst->update_source) | |
1348 | sockunion_free(peer_dst->update_source); | |
1349 | if (peer_dst->update_if) { | |
1350 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer_dst->update_if); | |
1351 | peer_dst->update_if = NULL; | |
1352 | } | |
1353 | peer_dst->update_source = | |
1354 | sockunion_dup(peer_src->update_source); | |
1355 | } else if (peer_src->update_if) { | |
1356 | if (peer_dst->update_if) | |
1357 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer_dst->update_if); | |
1358 | if (peer_dst->update_source) { | |
1359 | sockunion_free(peer_dst->update_source); | |
1360 | peer_dst->update_source = NULL; | |
1361 | } | |
1362 | peer_dst->update_if = | |
1363 | XSTRDUP(MTYPE_PEER_UPDATE_SOURCE, peer_src->update_if); | |
1364 | } | |
1365 | ||
1366 | if (peer_src->ifname) { | |
1367 | if (peer_dst->ifname) | |
1368 | XFREE(MTYPE_BGP_PEER_IFNAME, peer_dst->ifname); | |
1369 | ||
1370 | peer_dst->ifname = | |
1371 | XSTRDUP(MTYPE_BGP_PEER_IFNAME, peer_src->ifname); | |
1372 | } | |
1373 | } | |
1374 | ||
1375 | static int bgp_peer_conf_if_to_su_update_v4(struct peer *peer, | |
1376 | struct interface *ifp) | |
1377 | { | |
1378 | struct connected *ifc; | |
1379 | struct prefix p; | |
d7c0a89a | 1380 | uint32_t addr; |
d62a17ae | 1381 | struct listnode *node; |
1382 | ||
1383 | /* If our IPv4 address on the interface is /30 or /31, we can derive the | |
1384 | * IPv4 address of the other end. | |
1385 | */ | |
1386 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, ifc)) { | |
1387 | if (ifc->address && (ifc->address->family == AF_INET)) { | |
1388 | PREFIX_COPY_IPV4(&p, CONNECTED_PREFIX(ifc)); | |
1389 | if (p.prefixlen == 30) { | |
1390 | peer->su.sa.sa_family = AF_INET; | |
1391 | addr = ntohl(p.u.prefix4.s_addr); | |
1392 | if (addr % 4 == 1) | |
1393 | peer->su.sin.sin_addr.s_addr = | |
1394 | htonl(addr + 1); | |
1395 | else if (addr % 4 == 2) | |
1396 | peer->su.sin.sin_addr.s_addr = | |
1397 | htonl(addr - 1); | |
8ffedcea | 1398 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
d62a17ae | 1399 | peer->su.sin.sin_len = |
1400 | sizeof(struct sockaddr_in); | |
8ffedcea | 1401 | #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */ |
d62a17ae | 1402 | return 1; |
1403 | } else if (p.prefixlen == 31) { | |
1404 | peer->su.sa.sa_family = AF_INET; | |
1405 | addr = ntohl(p.u.prefix4.s_addr); | |
1406 | if (addr % 2 == 0) | |
1407 | peer->su.sin.sin_addr.s_addr = | |
1408 | htonl(addr + 1); | |
1409 | else | |
1410 | peer->su.sin.sin_addr.s_addr = | |
1411 | htonl(addr - 1); | |
8ffedcea | 1412 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
d62a17ae | 1413 | peer->su.sin.sin_len = |
1414 | sizeof(struct sockaddr_in); | |
8ffedcea | 1415 | #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */ |
d62a17ae | 1416 | return 1; |
1417 | } else if (bgp_debug_neighbor_events(peer)) | |
1418 | zlog_debug( | |
1419 | "%s: IPv4 interface address is not /30 or /31, v4 session not started", | |
1420 | peer->conf_if); | |
1421 | } | |
1422 | } | |
1423 | ||
1424 | return 0; | |
1425 | } | |
1426 | ||
1427 | static int bgp_peer_conf_if_to_su_update_v6(struct peer *peer, | |
1428 | struct interface *ifp) | |
1429 | { | |
1430 | struct nbr_connected *ifc_nbr; | |
1431 | ||
1432 | /* Have we learnt the peer's IPv6 link-local address? */ | |
1433 | if (ifp->nbr_connected | |
1434 | && (ifc_nbr = listnode_head(ifp->nbr_connected))) { | |
1435 | peer->su.sa.sa_family = AF_INET6; | |
1436 | memcpy(&peer->su.sin6.sin6_addr, &ifc_nbr->address->u.prefix, | |
1437 | sizeof(struct in6_addr)); | |
a80beece | 1438 | #ifdef SIN6_LEN |
d62a17ae | 1439 | peer->su.sin6.sin6_len = sizeof(struct sockaddr_in6); |
a80beece | 1440 | #endif |
d62a17ae | 1441 | peer->su.sin6.sin6_scope_id = ifp->ifindex; |
1442 | return 1; | |
1443 | } | |
8ffedcea | 1444 | |
d62a17ae | 1445 | return 0; |
89ca90fa | 1446 | } |
1447 | ||
1448 | /* | |
1449 | * Set or reset the peer address socketunion structure based on the | |
1450 | * learnt/derived peer address. If the address has changed, update the | |
1451 | * password on the listen socket, if needed. | |
1452 | */ | |
d62a17ae | 1453 | void bgp_peer_conf_if_to_su_update(struct peer *peer) |
1454 | { | |
1455 | struct interface *ifp; | |
1456 | int prev_family; | |
1457 | int peer_addr_updated = 0; | |
1458 | ||
1459 | if (!peer->conf_if) | |
1460 | return; | |
1461 | ||
d12b745c DS |
1462 | /* |
1463 | * Our peer structure is stored in the bgp->peerhash | |
1464 | * release it before we modify anything. | |
1465 | */ | |
1466 | hash_release(peer->bgp->peerhash, peer); | |
1467 | ||
d62a17ae | 1468 | prev_family = peer->su.sa.sa_family; |
1469 | if ((ifp = if_lookup_by_name(peer->conf_if, peer->bgp->vrf_id))) { | |
1470 | peer->ifp = ifp; | |
1471 | /* If BGP unnumbered is not "v6only", we first see if we can | |
1472 | * derive the | |
1473 | * peer's IPv4 address. | |
1474 | */ | |
1475 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_IFPEER_V6ONLY)) | |
1476 | peer_addr_updated = | |
1477 | bgp_peer_conf_if_to_su_update_v4(peer, ifp); | |
1478 | ||
1479 | /* If "v6only" or we can't derive peer's IPv4 address, see if | |
1480 | * we've | |
1481 | * learnt the peer's IPv6 link-local address. This is from the | |
1482 | * source | |
1483 | * IPv6 address in router advertisement. | |
1484 | */ | |
1485 | if (!peer_addr_updated) | |
1486 | peer_addr_updated = | |
1487 | bgp_peer_conf_if_to_su_update_v6(peer, ifp); | |
1488 | } | |
1489 | /* If we could derive the peer address, we may need to install the | |
1490 | * password | |
1491 | * configured for the peer, if any, on the listen socket. Otherwise, | |
1492 | * mark | |
1493 | * that peer's address is not available and uninstall the password, if | |
1494 | * needed. | |
1495 | */ | |
1496 | if (peer_addr_updated) { | |
1497 | if (peer->password && prev_family == AF_UNSPEC) | |
1498 | bgp_md5_set(peer); | |
1499 | } else { | |
1500 | if (peer->password && prev_family != AF_UNSPEC) | |
1501 | bgp_md5_unset(peer); | |
1502 | peer->su.sa.sa_family = AF_UNSPEC; | |
1503 | memset(&peer->su.sin6.sin6_addr, 0, sizeof(struct in6_addr)); | |
1504 | } | |
1505 | ||
d12b745c DS |
1506 | /* |
1507 | * Since our su changed we need to del/add peer to the peerhash | |
1508 | */ | |
d62a17ae | 1509 | hash_get(peer->bgp->peerhash, peer, hash_alloc_intern); |
a80beece DS |
1510 | } |
1511 | ||
318cac96 DW |
1512 | static void bgp_recalculate_afi_safi_bestpaths(struct bgp *bgp, afi_t afi, |
1513 | safi_t safi) | |
1514 | { | |
1515 | struct bgp_node *rn, *nrn; | |
1516 | ||
1517 | for (rn = bgp_table_top(bgp->rib[afi][safi]); rn; | |
1518 | rn = bgp_route_next(rn)) { | |
1519 | if (rn->info != NULL) { | |
1520 | /* Special handling for 2-level routing | |
1521 | * tables. */ | |
a4d82a8a | 1522 | if (safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP |
318cac96 | 1523 | || safi == SAFI_EVPN) { |
a4d82a8a PZ |
1524 | for (nrn = bgp_table_top( |
1525 | (struct bgp_table *)(rn->info)); | |
1526 | nrn; nrn = bgp_route_next(nrn)) | |
1527 | bgp_process(bgp, nrn, afi, safi); | |
318cac96 DW |
1528 | } else |
1529 | bgp_process(bgp, rn, afi, safi); | |
1530 | } | |
1531 | } | |
1532 | } | |
1533 | ||
06370dac DW |
1534 | /* Force a bestpath recalculation for all prefixes. This is used |
1535 | * when 'bgp bestpath' commands are entered. | |
1536 | */ | |
d62a17ae | 1537 | void bgp_recalculate_all_bestpaths(struct bgp *bgp) |
1538 | { | |
1539 | afi_t afi; | |
1540 | safi_t safi; | |
d62a17ae | 1541 | |
05c7a1cc QY |
1542 | FOREACH_AFI_SAFI (afi, safi) { |
1543 | bgp_recalculate_afi_safi_bestpaths(bgp, afi, safi); | |
d62a17ae | 1544 | } |
06370dac DW |
1545 | } |
1546 | ||
718e3744 | 1547 | /* Create new BGP peer. */ |
d62a17ae | 1548 | struct peer *peer_create(union sockunion *su, const char *conf_if, |
1549 | struct bgp *bgp, as_t local_as, as_t remote_as, | |
1550 | int as_type, afi_t afi, safi_t safi, | |
1551 | struct peer_group *group) | |
1552 | { | |
1553 | int active; | |
1554 | struct peer *peer; | |
1555 | char buf[SU_ADDRSTRLEN]; | |
1556 | ||
1557 | peer = peer_new(bgp); | |
1558 | if (conf_if) { | |
1559 | peer->conf_if = XSTRDUP(MTYPE_PEER_CONF_IF, conf_if); | |
1560 | bgp_peer_conf_if_to_su_update(peer); | |
1561 | if (peer->host) | |
1562 | XFREE(MTYPE_BGP_PEER_HOST, peer->host); | |
1563 | peer->host = XSTRDUP(MTYPE_BGP_PEER_HOST, conf_if); | |
1564 | } else if (su) { | |
1565 | peer->su = *su; | |
1566 | sockunion2str(su, buf, SU_ADDRSTRLEN); | |
1567 | if (peer->host) | |
1568 | XFREE(MTYPE_BGP_PEER_HOST, peer->host); | |
1569 | peer->host = XSTRDUP(MTYPE_BGP_PEER_HOST, buf); | |
1570 | } | |
1571 | peer->local_as = local_as; | |
1572 | peer->as = remote_as; | |
1573 | peer->as_type = as_type; | |
1574 | peer->local_id = bgp->router_id; | |
1575 | peer->v_holdtime = bgp->default_holdtime; | |
1576 | peer->v_keepalive = bgp->default_keepalive; | |
b90a8e13 PM |
1577 | peer->v_routeadv = (peer_sort(peer) == BGP_PEER_IBGP) |
1578 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
1579 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 1580 | |
1581 | peer = peer_lock(peer); /* bgp peer list reference */ | |
1582 | peer->group = group; | |
1583 | listnode_add_sort(bgp->peer, peer); | |
1584 | hash_get(bgp->peerhash, peer, hash_alloc_intern); | |
1585 | ||
4961a5a2 | 1586 | /* Adjust update-group coalesce timer heuristics for # peers. */ |
37a333fe | 1587 | if (bgp->heuristic_coalesce) { |
14b8641a QY |
1588 | long ct = BGP_DEFAULT_SUBGROUP_COALESCE_TIME |
1589 | + (bgp->peer->count | |
1590 | * BGP_PEER_ADJUST_SUBGROUP_COALESCE_TIME); | |
1591 | bgp->coalesce_time = MIN(BGP_MAX_SUBGROUP_COALESCE_TIME, ct); | |
1592 | } | |
4961a5a2 | 1593 | |
d62a17ae | 1594 | active = peer_active(peer); |
1595 | ||
1596 | /* Last read and reset time set */ | |
1597 | peer->readtime = peer->resettime = bgp_clock(); | |
1598 | ||
1599 | /* Default TTL set. */ | |
1600 | peer->ttl = (peer->sort == BGP_PEER_IBGP) ? MAXTTL : 1; | |
1601 | ||
1602 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); | |
1603 | ||
1604 | if (afi && safi) { | |
1605 | peer->afc[afi][safi] = 1; | |
1606 | peer_af_create(peer, afi, safi); | |
1607 | } | |
1608 | ||
f26845f9 QY |
1609 | /* auto shutdown if configured */ |
1610 | if (bgp->autoshutdown) | |
1611 | peer_flag_set(peer, PEER_FLAG_SHUTDOWN); | |
d62a17ae | 1612 | /* Set up peer's events and timers. */ |
f26845f9 | 1613 | else if (!active && peer_active(peer)) |
d62a17ae | 1614 | bgp_timer_set(peer); |
1615 | ||
1616 | return peer; | |
718e3744 | 1617 | } |
1618 | ||
dd793e4a | 1619 | /* Make accept BGP peer. This function is only called from the test code */ |
d62a17ae | 1620 | struct peer *peer_create_accept(struct bgp *bgp) |
eb821189 | 1621 | { |
d62a17ae | 1622 | struct peer *peer; |
eb821189 | 1623 | |
d62a17ae | 1624 | peer = peer_new(bgp); |
1ff9a340 | 1625 | |
d62a17ae | 1626 | peer = peer_lock(peer); /* bgp peer list reference */ |
1627 | listnode_add_sort(bgp->peer, peer); | |
eb821189 | 1628 | |
d62a17ae | 1629 | return peer; |
eb821189 | 1630 | } |
1631 | ||
318cac96 DW |
1632 | /* |
1633 | * Return true if we have a peer configured to use this afi/safi | |
1634 | */ | |
1635 | int bgp_afi_safi_peer_exists(struct bgp *bgp, afi_t afi, safi_t safi) | |
1636 | { | |
1637 | struct listnode *node; | |
1638 | struct peer *peer; | |
1639 | ||
1640 | for (ALL_LIST_ELEMENTS_RO(bgp->peer, node, peer)) { | |
1641 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE)) | |
1642 | continue; | |
1643 | ||
1644 | if (peer->afc[afi][safi]) | |
1645 | return 1; | |
1646 | } | |
1647 | ||
1648 | return 0; | |
1649 | } | |
1650 | ||
718e3744 | 1651 | /* Change peer's AS number. */ |
d62a17ae | 1652 | void peer_as_change(struct peer *peer, as_t as, int as_specified) |
1653 | { | |
1654 | bgp_peer_sort_t type; | |
d62a17ae | 1655 | |
1656 | /* Stop peer. */ | |
1657 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
1658 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
1659 | peer->last_reset = PEER_DOWN_REMOTE_AS_CHANGE; | |
1660 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
1661 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
1662 | } else | |
1663 | bgp_session_reset(peer); | |
1664 | } | |
1665 | type = peer_sort(peer); | |
1666 | peer->as = as; | |
1667 | peer->as_type = as_specified; | |
1668 | ||
1669 | if (bgp_config_check(peer->bgp, BGP_CONFIG_CONFEDERATION) | |
1670 | && !bgp_confederation_peers_check(peer->bgp, as) | |
1671 | && peer->bgp->as != as) | |
1672 | peer->local_as = peer->bgp->confed_id; | |
1673 | else | |
1674 | peer->local_as = peer->bgp->as; | |
1675 | ||
1676 | /* Advertisement-interval reset */ | |
b90a8e13 PM |
1677 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_ROUTEADV)) { |
1678 | peer->v_routeadv = (peer_sort(peer) == BGP_PEER_IBGP) | |
1679 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
1680 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 1681 | } |
b90a8e13 | 1682 | |
d62a17ae | 1683 | /* TTL reset */ |
1684 | if (peer_sort(peer) == BGP_PEER_IBGP) | |
1685 | peer->ttl = MAXTTL; | |
1686 | else if (type == BGP_PEER_IBGP) | |
1687 | peer->ttl = 1; | |
1688 | ||
1689 | /* reflector-client reset */ | |
1690 | if (peer_sort(peer) != BGP_PEER_IBGP) { | |
1691 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_UNICAST], | |
1692 | PEER_FLAG_REFLECTOR_CLIENT); | |
1693 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_MULTICAST], | |
1694 | PEER_FLAG_REFLECTOR_CLIENT); | |
1695 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_LABELED_UNICAST], | |
1696 | PEER_FLAG_REFLECTOR_CLIENT); | |
1697 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_MPLS_VPN], | |
1698 | PEER_FLAG_REFLECTOR_CLIENT); | |
1699 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_ENCAP], | |
1700 | PEER_FLAG_REFLECTOR_CLIENT); | |
7c40bf39 | 1701 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_FLOWSPEC], |
1702 | PEER_FLAG_REFLECTOR_CLIENT); | |
d62a17ae | 1703 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_UNICAST], |
1704 | PEER_FLAG_REFLECTOR_CLIENT); | |
1705 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_MULTICAST], | |
1706 | PEER_FLAG_REFLECTOR_CLIENT); | |
1707 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_LABELED_UNICAST], | |
1708 | PEER_FLAG_REFLECTOR_CLIENT); | |
1709 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_MPLS_VPN], | |
1710 | PEER_FLAG_REFLECTOR_CLIENT); | |
1711 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_ENCAP], | |
1712 | PEER_FLAG_REFLECTOR_CLIENT); | |
7c40bf39 | 1713 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_FLOWSPEC], |
1714 | PEER_FLAG_REFLECTOR_CLIENT); | |
d62a17ae | 1715 | UNSET_FLAG(peer->af_flags[AFI_L2VPN][SAFI_EVPN], |
1716 | PEER_FLAG_REFLECTOR_CLIENT); | |
1717 | } | |
1718 | ||
1719 | /* local-as reset */ | |
1720 | if (peer_sort(peer) != BGP_PEER_EBGP) { | |
1721 | peer->change_local_as = 0; | |
1722 | UNSET_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
1723 | UNSET_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
1724 | } | |
718e3744 | 1725 | } |
1726 | ||
1727 | /* If peer does not exist, create new one. If peer already exists, | |
1728 | set AS number to the peer. */ | |
d62a17ae | 1729 | int peer_remote_as(struct bgp *bgp, union sockunion *su, const char *conf_if, |
1730 | as_t *as, int as_type, afi_t afi, safi_t safi) | |
1731 | { | |
1732 | struct peer *peer; | |
1733 | as_t local_as; | |
1734 | ||
1735 | if (conf_if) | |
1736 | peer = peer_lookup_by_conf_if(bgp, conf_if); | |
1737 | else | |
1738 | peer = peer_lookup(bgp, su); | |
1739 | ||
1740 | if (peer) { | |
1741 | /* Not allowed for a dynamic peer. */ | |
1742 | if (peer_dynamic_neighbor(peer)) { | |
1743 | *as = peer->as; | |
1744 | return BGP_ERR_INVALID_FOR_DYNAMIC_PEER; | |
1745 | } | |
718e3744 | 1746 | |
d62a17ae | 1747 | /* When this peer is a member of peer-group. */ |
1748 | if (peer->group) { | |
1749 | if (peer->group->conf->as) { | |
1750 | /* Return peer group's AS number. */ | |
1751 | *as = peer->group->conf->as; | |
1752 | return BGP_ERR_PEER_GROUP_MEMBER; | |
1753 | } | |
1754 | if (peer_sort(peer->group->conf) == BGP_PEER_IBGP) { | |
1755 | if ((as_type != AS_INTERNAL) | |
1756 | && (bgp->as != *as)) { | |
1757 | *as = peer->as; | |
1758 | return BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT; | |
1759 | } | |
1760 | } else { | |
1761 | if ((as_type != AS_EXTERNAL) | |
1762 | && (bgp->as == *as)) { | |
1763 | *as = peer->as; | |
1764 | return BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT; | |
1765 | } | |
1766 | } | |
1767 | } | |
93406d87 | 1768 | |
d62a17ae | 1769 | /* Existing peer's AS number change. */ |
1770 | if (((peer->as_type == AS_SPECIFIED) && peer->as != *as) | |
1771 | || (peer->as_type != as_type)) | |
1772 | peer_as_change(peer, *as, as_type); | |
1773 | } else { | |
1774 | if (conf_if) | |
1775 | return BGP_ERR_NO_INTERFACE_CONFIG; | |
1776 | ||
1777 | /* If the peer is not part of our confederation, and its not an | |
1778 | iBGP peer then spoof the source AS */ | |
1779 | if (bgp_config_check(bgp, BGP_CONFIG_CONFEDERATION) | |
1780 | && !bgp_confederation_peers_check(bgp, *as) | |
1781 | && bgp->as != *as) | |
1782 | local_as = bgp->confed_id; | |
1783 | else | |
1784 | local_as = bgp->as; | |
1785 | ||
1786 | /* If this is IPv4 unicast configuration and "no bgp default | |
1787 | ipv4-unicast" is specified. */ | |
1788 | ||
1789 | if (bgp_flag_check(bgp, BGP_FLAG_NO_DEFAULT_IPV4) | |
1790 | && afi == AFI_IP && safi == SAFI_UNICAST) | |
1791 | peer_create(su, conf_if, bgp, local_as, *as, as_type, 0, | |
1792 | 0, NULL); | |
1793 | else | |
1794 | peer_create(su, conf_if, bgp, local_as, *as, as_type, | |
1795 | afi, safi, NULL); | |
1796 | } | |
718e3744 | 1797 | |
d62a17ae | 1798 | return 0; |
1799 | } | |
718e3744 | 1800 | |
9790f44f DS |
1801 | static void peer_group2peer_config_copy_af(struct peer_group *group, |
1802 | struct peer *peer, afi_t afi, | |
1803 | safi_t safi) | |
1804 | { | |
1805 | int in = FILTER_IN; | |
1806 | int out = FILTER_OUT; | |
e7103a96 PM |
1807 | uint32_t pflags_ovrd; |
1808 | uint8_t *pfilter_ovrd; | |
9790f44f | 1809 | struct peer *conf; |
9790f44f DS |
1810 | |
1811 | conf = group->conf; | |
e7103a96 PM |
1812 | pflags_ovrd = peer->af_flags_override[afi][safi]; |
1813 | pfilter_ovrd = &peer->filter_override[afi][safi][in]; | |
9790f44f DS |
1814 | |
1815 | /* peer af_flags apply */ | |
e7103a96 PM |
1816 | peer->af_flags[afi][safi] |= conf->af_flags[afi][safi] & ~pflags_ovrd; |
1817 | peer->af_flags_invert[afi][safi] |= conf->af_flags_invert[afi][safi]; | |
9790f44f DS |
1818 | |
1819 | /* maximum-prefix */ | |
e7103a96 PM |
1820 | if (!CHECK_FLAG(pflags_ovrd, PEER_FLAG_MAX_PREFIX)) { |
1821 | PEER_ATTR_INHERIT(peer, group, pmax[afi][safi]); | |
1822 | PEER_ATTR_INHERIT(peer, group, pmax_threshold[afi][safi]); | |
1823 | PEER_ATTR_INHERIT(peer, group, pmax_restart[afi][safi]); | |
1824 | } | |
9790f44f DS |
1825 | |
1826 | /* allowas-in */ | |
e7103a96 PM |
1827 | if (!CHECK_FLAG(pflags_ovrd, PEER_FLAG_ALLOWAS_IN)) |
1828 | PEER_ATTR_INHERIT(peer, group, allowas_in[afi][safi]); | |
9790f44f DS |
1829 | |
1830 | /* weight */ | |
e7103a96 PM |
1831 | if (!CHECK_FLAG(pflags_ovrd, PEER_FLAG_WEIGHT)) |
1832 | PEER_ATTR_INHERIT(peer, group, weight[afi][safi]); | |
9790f44f DS |
1833 | |
1834 | /* default-originate route-map */ | |
e7103a96 PM |
1835 | if (!CHECK_FLAG(pflags_ovrd, PEER_FLAG_DEFAULT_ORIGINATE)) { |
1836 | PEER_STR_ATTR_INHERIT(peer, group, default_rmap[afi][safi].name, | |
1837 | MTYPE_ROUTE_MAP_NAME); | |
1838 | PEER_ATTR_INHERIT(peer, group, default_rmap[afi][safi].map); | |
9790f44f DS |
1839 | } |
1840 | ||
1841 | /* inbound filter apply */ | |
e7103a96 PM |
1842 | if (!CHECK_FLAG(pfilter_ovrd[in], PEER_FT_DISTRIBUTE_LIST)) { |
1843 | PEER_STR_ATTR_INHERIT(peer, group, | |
1844 | filter[afi][safi].dlist[in].name, | |
1845 | MTYPE_BGP_FILTER_NAME); | |
1846 | PEER_ATTR_INHERIT(peer, group, | |
1847 | filter[afi][safi].dlist[in].alist); | |
9790f44f DS |
1848 | } |
1849 | ||
e7103a96 PM |
1850 | if (!CHECK_FLAG(pfilter_ovrd[in], PEER_FT_PREFIX_LIST)) { |
1851 | PEER_STR_ATTR_INHERIT(peer, group, | |
1852 | filter[afi][safi].plist[in].name, | |
1853 | MTYPE_BGP_FILTER_NAME); | |
1854 | PEER_ATTR_INHERIT(peer, group, | |
1855 | filter[afi][safi].plist[in].plist); | |
9790f44f DS |
1856 | } |
1857 | ||
e7103a96 PM |
1858 | if (!CHECK_FLAG(pfilter_ovrd[in], PEER_FT_FILTER_LIST)) { |
1859 | PEER_STR_ATTR_INHERIT(peer, group, | |
1860 | filter[afi][safi].aslist[in].name, | |
1861 | MTYPE_BGP_FILTER_NAME); | |
1862 | PEER_ATTR_INHERIT(peer, group, | |
1863 | filter[afi][safi].aslist[in].aslist); | |
9790f44f DS |
1864 | } |
1865 | ||
e7103a96 PM |
1866 | if (!CHECK_FLAG(pfilter_ovrd[RMAP_IN], PEER_FT_ROUTE_MAP)) { |
1867 | PEER_STR_ATTR_INHERIT(peer, group, | |
1868 | filter[afi][safi].map[in].name, | |
1869 | MTYPE_BGP_FILTER_NAME); | |
1870 | PEER_ATTR_INHERIT(peer, group, | |
1871 | filter[afi][safi].map[RMAP_IN].map); | |
9790f44f DS |
1872 | } |
1873 | ||
1874 | /* outbound filter apply */ | |
e7103a96 PM |
1875 | if (!CHECK_FLAG(pfilter_ovrd[out], PEER_FT_DISTRIBUTE_LIST)) { |
1876 | PEER_STR_ATTR_INHERIT(peer, group, | |
1877 | filter[afi][safi].dlist[out].name, | |
1878 | MTYPE_BGP_FILTER_NAME); | |
1879 | PEER_ATTR_INHERIT(peer, group, | |
1880 | filter[afi][safi].dlist[out].alist); | |
9790f44f DS |
1881 | } |
1882 | ||
e7103a96 PM |
1883 | if (!CHECK_FLAG(pfilter_ovrd[out], PEER_FT_PREFIX_LIST)) { |
1884 | PEER_STR_ATTR_INHERIT(peer, group, | |
1885 | filter[afi][safi].plist[out].name, | |
1886 | MTYPE_BGP_FILTER_NAME); | |
1887 | PEER_ATTR_INHERIT(peer, group, | |
1888 | filter[afi][safi].plist[out].plist); | |
9790f44f DS |
1889 | } |
1890 | ||
e7103a96 PM |
1891 | if (!CHECK_FLAG(pfilter_ovrd[out], PEER_FT_FILTER_LIST)) { |
1892 | PEER_STR_ATTR_INHERIT(peer, group, | |
1893 | filter[afi][safi].aslist[out].name, | |
1894 | MTYPE_BGP_FILTER_NAME); | |
1895 | PEER_ATTR_INHERIT(peer, group, | |
1896 | filter[afi][safi].aslist[out].aslist); | |
1897 | } | |
1898 | ||
1899 | if (!CHECK_FLAG(pfilter_ovrd[RMAP_OUT], PEER_FT_ROUTE_MAP)) { | |
1900 | PEER_STR_ATTR_INHERIT(peer, group, | |
1901 | filter[afi][safi].map[RMAP_OUT].name, | |
1902 | MTYPE_BGP_FILTER_NAME); | |
1903 | PEER_ATTR_INHERIT(peer, group, | |
1904 | filter[afi][safi].map[RMAP_OUT].map); | |
1905 | } | |
1906 | ||
1907 | /* nondirectional filter apply */ | |
1908 | if (!CHECK_FLAG(pfilter_ovrd[0], PEER_FT_UNSUPPRESS_MAP)) { | |
1909 | PEER_STR_ATTR_INHERIT(peer, group, filter[afi][safi].usmap.name, | |
1910 | MTYPE_BGP_FILTER_NAME); | |
1911 | PEER_ATTR_INHERIT(peer, group, filter[afi][safi].usmap.map); | |
9790f44f DS |
1912 | } |
1913 | } | |
1914 | ||
1915 | static int peer_activate_af(struct peer *peer, afi_t afi, safi_t safi) | |
d62a17ae | 1916 | { |
1917 | int active; | |
718e3744 | 1918 | |
d62a17ae | 1919 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
1920 | zlog_err("%s was called for peer-group %s", __func__, | |
1921 | peer->host); | |
1922 | return 1; | |
1923 | } | |
3f9c7369 | 1924 | |
d62a17ae | 1925 | /* Do not activate a peer for both SAFI_UNICAST and SAFI_LABELED_UNICAST |
1926 | */ | |
1927 | if ((safi == SAFI_UNICAST && peer->afc[afi][SAFI_LABELED_UNICAST]) | |
1928 | || (safi == SAFI_LABELED_UNICAST && peer->afc[afi][SAFI_UNICAST])) | |
1929 | return BGP_ERR_PEER_SAFI_CONFLICT; | |
1930 | ||
1931 | /* Nothing to do if we've already activated this peer */ | |
1932 | if (peer->afc[afi][safi]) | |
1933 | return 0; | |
1934 | ||
1935 | if (peer_af_create(peer, afi, safi) == NULL) | |
1936 | return 1; | |
1937 | ||
1938 | active = peer_active(peer); | |
1939 | peer->afc[afi][safi] = 1; | |
1940 | ||
9790f44f | 1941 | if (peer->group) |
a4d82a8a | 1942 | peer_group2peer_config_copy_af(peer->group, peer, afi, safi); |
9790f44f | 1943 | |
d62a17ae | 1944 | if (!active && peer_active(peer)) { |
1945 | bgp_timer_set(peer); | |
1946 | } else { | |
1947 | if (peer->status == Established) { | |
1948 | if (CHECK_FLAG(peer->cap, PEER_CAP_DYNAMIC_RCV)) { | |
1949 | peer->afc_adv[afi][safi] = 1; | |
1950 | bgp_capability_send(peer, afi, safi, | |
1951 | CAPABILITY_CODE_MP, | |
1952 | CAPABILITY_ACTION_SET); | |
1953 | if (peer->afc_recv[afi][safi]) { | |
1954 | peer->afc_nego[afi][safi] = 1; | |
1955 | bgp_announce_route(peer, afi, safi); | |
1956 | } | |
1957 | } else { | |
1958 | peer->last_reset = PEER_DOWN_AF_ACTIVATE; | |
1959 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
1960 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
1961 | } | |
1962 | } | |
64c1a9b5 DS |
1963 | if (peer->status == OpenSent || peer->status == OpenConfirm) { |
1964 | peer->last_reset = PEER_DOWN_AF_ACTIVATE; | |
1965 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
1966 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
1967 | } | |
d62a17ae | 1968 | } |
04b6bdc0 | 1969 | |
d62a17ae | 1970 | return 0; |
1971 | } | |
9e08021c | 1972 | |
d62a17ae | 1973 | /* Activate the peer or peer group for specified AFI and SAFI. */ |
1974 | int peer_activate(struct peer *peer, afi_t afi, safi_t safi) | |
1975 | { | |
1976 | int ret = 0; | |
1977 | struct peer_group *group; | |
1978 | struct listnode *node, *nnode; | |
1979 | struct peer *tmp_peer; | |
318cac96 | 1980 | struct bgp *bgp; |
d62a17ae | 1981 | |
1982 | /* Nothing to do if we've already activated this peer */ | |
1983 | if (peer->afc[afi][safi]) | |
1984 | return ret; | |
1985 | ||
318cac96 DW |
1986 | bgp = peer->bgp; |
1987 | ||
d62a17ae | 1988 | /* This is a peer-group so activate all of the members of the |
1989 | * peer-group as well */ | |
1990 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
1991 | ||
1992 | /* Do not activate a peer for both SAFI_UNICAST and | |
1993 | * SAFI_LABELED_UNICAST */ | |
1994 | if ((safi == SAFI_UNICAST | |
1995 | && peer->afc[afi][SAFI_LABELED_UNICAST]) | |
1996 | || (safi == SAFI_LABELED_UNICAST | |
1997 | && peer->afc[afi][SAFI_UNICAST])) | |
1998 | return BGP_ERR_PEER_SAFI_CONFLICT; | |
1999 | ||
2000 | peer->afc[afi][safi] = 1; | |
2001 | group = peer->group; | |
2002 | ||
2003 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, tmp_peer)) { | |
9790f44f | 2004 | ret |= peer_activate_af(tmp_peer, afi, safi); |
d62a17ae | 2005 | } |
2006 | } else { | |
9790f44f | 2007 | ret |= peer_activate_af(peer, afi, safi); |
d62a17ae | 2008 | } |
718e3744 | 2009 | |
a4d82a8a PZ |
2010 | /* If this is the first peer to be activated for this |
2011 | * afi/labeled-unicast recalc bestpaths to trigger label allocation */ | |
2012 | if (safi == SAFI_LABELED_UNICAST | |
2013 | && !bgp->allocate_mpls_labels[afi][SAFI_UNICAST]) { | |
318cac96 DW |
2014 | |
2015 | if (BGP_DEBUG(zebra, ZEBRA)) | |
a4d82a8a PZ |
2016 | zlog_info( |
2017 | "peer(s) are now active for labeled-unicast, allocate MPLS labels"); | |
318cac96 DW |
2018 | |
2019 | bgp->allocate_mpls_labels[afi][SAFI_UNICAST] = 1; | |
2020 | bgp_recalculate_afi_safi_bestpaths(bgp, afi, SAFI_UNICAST); | |
2021 | } | |
2022 | ||
b98f7728 PG |
2023 | if (safi == SAFI_FLOWSPEC) { |
2024 | /* connect to table manager */ | |
6818e7e5 | 2025 | bgp_zebra_init_tm_connect(bgp); |
b98f7728 | 2026 | } |
d62a17ae | 2027 | return ret; |
718e3744 | 2028 | } |
6b0655a2 | 2029 | |
d62a17ae | 2030 | static int non_peergroup_deactivate_af(struct peer *peer, afi_t afi, |
2031 | safi_t safi) | |
718e3744 | 2032 | { |
d62a17ae | 2033 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
2034 | zlog_err("%s was called for peer-group %s", __func__, | |
2035 | peer->host); | |
2036 | return 1; | |
2037 | } | |
718e3744 | 2038 | |
d62a17ae | 2039 | /* Nothing to do if we've already deactivated this peer */ |
2040 | if (!peer->afc[afi][safi]) | |
2041 | return 0; | |
718e3744 | 2042 | |
d62a17ae | 2043 | /* De-activate the address family configuration. */ |
2044 | peer->afc[afi][safi] = 0; | |
718e3744 | 2045 | |
d62a17ae | 2046 | if (peer_af_delete(peer, afi, safi) != 0) { |
2047 | zlog_err("couldn't delete af structure for peer %s", | |
2048 | peer->host); | |
2049 | return 1; | |
2050 | } | |
718e3744 | 2051 | |
d62a17ae | 2052 | if (peer->status == Established) { |
2053 | if (CHECK_FLAG(peer->cap, PEER_CAP_DYNAMIC_RCV)) { | |
2054 | peer->afc_adv[afi][safi] = 0; | |
2055 | peer->afc_nego[afi][safi] = 0; | |
2056 | ||
2057 | if (peer_active_nego(peer)) { | |
2058 | bgp_capability_send(peer, afi, safi, | |
2059 | CAPABILITY_CODE_MP, | |
2060 | CAPABILITY_ACTION_UNSET); | |
2061 | bgp_clear_route(peer, afi, safi); | |
2062 | peer->pcount[afi][safi] = 0; | |
2063 | } else { | |
2064 | peer->last_reset = PEER_DOWN_NEIGHBOR_DELETE; | |
2065 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
2066 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
2067 | } | |
2068 | } else { | |
2069 | peer->last_reset = PEER_DOWN_NEIGHBOR_DELETE; | |
2070 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
2071 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
2072 | } | |
2073 | } | |
718e3744 | 2074 | |
d62a17ae | 2075 | return 0; |
2076 | } | |
718e3744 | 2077 | |
d62a17ae | 2078 | int peer_deactivate(struct peer *peer, afi_t afi, safi_t safi) |
718e3744 | 2079 | { |
d62a17ae | 2080 | int ret = 0; |
2081 | struct peer_group *group; | |
2082 | struct peer *tmp_peer; | |
2083 | struct listnode *node, *nnode; | |
318cac96 | 2084 | struct bgp *bgp; |
718e3744 | 2085 | |
d62a17ae | 2086 | /* Nothing to do if we've already de-activated this peer */ |
2087 | if (!peer->afc[afi][safi]) | |
2088 | return ret; | |
718e3744 | 2089 | |
d62a17ae | 2090 | /* This is a peer-group so de-activate all of the members of the |
2091 | * peer-group as well */ | |
2092 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
2093 | peer->afc[afi][safi] = 0; | |
2094 | group = peer->group; | |
718e3744 | 2095 | |
d62a17ae | 2096 | if (peer_af_delete(peer, afi, safi) != 0) { |
2097 | zlog_err("couldn't delete af structure for peer %s", | |
2098 | peer->host); | |
2099 | } | |
0299c004 | 2100 | |
d62a17ae | 2101 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, tmp_peer)) { |
2102 | ret |= non_peergroup_deactivate_af(tmp_peer, afi, safi); | |
2103 | } | |
2104 | } else { | |
2105 | ret |= non_peergroup_deactivate_af(peer, afi, safi); | |
2106 | } | |
718e3744 | 2107 | |
318cac96 DW |
2108 | bgp = peer->bgp; |
2109 | ||
a4d82a8a PZ |
2110 | /* If this is the last peer to be deactivated for this |
2111 | * afi/labeled-unicast recalc bestpaths to trigger label deallocation */ | |
2112 | if (safi == SAFI_LABELED_UNICAST | |
2113 | && bgp->allocate_mpls_labels[afi][SAFI_UNICAST] | |
2114 | && !bgp_afi_safi_peer_exists(bgp, afi, safi)) { | |
318cac96 DW |
2115 | |
2116 | if (BGP_DEBUG(zebra, ZEBRA)) | |
a4d82a8a PZ |
2117 | zlog_info( |
2118 | "peer(s) are no longer active for labeled-unicast, deallocate MPLS labels"); | |
318cac96 DW |
2119 | |
2120 | bgp->allocate_mpls_labels[afi][SAFI_UNICAST] = 0; | |
2121 | bgp_recalculate_afi_safi_bestpaths(bgp, afi, SAFI_UNICAST); | |
2122 | } | |
d62a17ae | 2123 | return ret; |
2124 | } | |
718e3744 | 2125 | |
d62a17ae | 2126 | int peer_afc_set(struct peer *peer, afi_t afi, safi_t safi, int enable) |
2127 | { | |
2128 | if (enable) | |
2129 | return peer_activate(peer, afi, safi); | |
2130 | else | |
2131 | return peer_deactivate(peer, afi, safi); | |
718e3744 | 2132 | } |
2133 | ||
d62a17ae | 2134 | static void peer_nsf_stop(struct peer *peer) |
718e3744 | 2135 | { |
d62a17ae | 2136 | afi_t afi; |
2137 | safi_t safi; | |
718e3744 | 2138 | |
d62a17ae | 2139 | UNSET_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT); |
2140 | UNSET_FLAG(peer->sflags, PEER_STATUS_NSF_MODE); | |
718e3744 | 2141 | |
d62a17ae | 2142 | for (afi = AFI_IP; afi < AFI_MAX; afi++) |
a08ca0a7 | 2143 | for (safi = SAFI_UNICAST; safi <= SAFI_MPLS_VPN; safi++) |
d62a17ae | 2144 | peer->nsf[afi][safi] = 0; |
2145 | ||
2146 | if (peer->t_gr_restart) { | |
2147 | BGP_TIMER_OFF(peer->t_gr_restart); | |
2148 | if (bgp_debug_neighbor_events(peer)) | |
2149 | zlog_debug("%s graceful restart timer stopped", | |
2150 | peer->host); | |
1ff9a340 | 2151 | } |
d62a17ae | 2152 | if (peer->t_gr_stale) { |
2153 | BGP_TIMER_OFF(peer->t_gr_stale); | |
2154 | if (bgp_debug_neighbor_events(peer)) | |
2155 | zlog_debug( | |
2156 | "%s graceful restart stalepath timer stopped", | |
2157 | peer->host); | |
2158 | } | |
2159 | bgp_clear_route_all(peer); | |
2160 | } | |
718e3744 | 2161 | |
d62a17ae | 2162 | /* Delete peer from confguration. |
2163 | * | |
2164 | * The peer is moved to a dead-end "Deleted" neighbour-state, to allow | |
2165 | * it to "cool off" and refcounts to hit 0, at which state it is freed. | |
2166 | * | |
2167 | * This function /should/ take care to be idempotent, to guard against | |
2168 | * it being called multiple times through stray events that come in | |
2169 | * that happen to result in this function being called again. That | |
2170 | * said, getting here for a "Deleted" peer is a bug in the neighbour | |
2171 | * FSM. | |
2172 | */ | |
2173 | int peer_delete(struct peer *peer) | |
2174 | { | |
2175 | int i; | |
2176 | afi_t afi; | |
2177 | safi_t safi; | |
2178 | struct bgp *bgp; | |
2179 | struct bgp_filter *filter; | |
2180 | struct listnode *pn; | |
2181 | int accept_peer; | |
f14e6fdb | 2182 | |
d62a17ae | 2183 | assert(peer->status != Deleted); |
718e3744 | 2184 | |
d62a17ae | 2185 | bgp = peer->bgp; |
2186 | accept_peer = CHECK_FLAG(peer->sflags, PEER_STATUS_ACCEPT_PEER); | |
080b97f2 | 2187 | |
424ab01d QY |
2188 | bgp_reads_off(peer); |
2189 | bgp_writes_off(peer); | |
2190 | assert(!CHECK_FLAG(peer->thread_flags, PEER_THREAD_WRITES_ON)); | |
2191 | assert(!CHECK_FLAG(peer->thread_flags, PEER_THREAD_READS_ON)); | |
2192 | ||
d62a17ae | 2193 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT)) |
2194 | peer_nsf_stop(peer); | |
718e3744 | 2195 | |
d62a17ae | 2196 | SET_FLAG(peer->flags, PEER_FLAG_DELETE); |
718e3744 | 2197 | |
d62a17ae | 2198 | /* If this peer belongs to peer group, clear up the |
2199 | relationship. */ | |
2200 | if (peer->group) { | |
2201 | if (peer_dynamic_neighbor(peer)) | |
2202 | peer_drop_dynamic_neighbor(peer); | |
718e3744 | 2203 | |
d62a17ae | 2204 | if ((pn = listnode_lookup(peer->group->peer, peer))) { |
2205 | peer = peer_unlock( | |
2206 | peer); /* group->peer list reference */ | |
2207 | list_delete_node(peer->group->peer, pn); | |
2208 | } | |
2209 | peer->group = NULL; | |
2210 | } | |
718e3744 | 2211 | |
d62a17ae | 2212 | /* Withdraw all information from routing table. We can not use |
2213 | * BGP_EVENT_ADD (peer, BGP_Stop) at here. Because the event is | |
2214 | * executed after peer structure is deleted. | |
2215 | */ | |
2216 | peer->last_reset = PEER_DOWN_NEIGHBOR_DELETE; | |
2217 | bgp_stop(peer); | |
2218 | UNSET_FLAG(peer->flags, PEER_FLAG_DELETE); | |
2219 | ||
2220 | if (peer->doppelganger) { | |
2221 | peer->doppelganger->doppelganger = NULL; | |
2222 | peer->doppelganger = NULL; | |
2223 | } | |
718e3744 | 2224 | |
d62a17ae | 2225 | UNSET_FLAG(peer->sflags, PEER_STATUS_ACCEPT_PEER); |
2226 | bgp_fsm_change_status(peer, Deleted); | |
718e3744 | 2227 | |
d62a17ae | 2228 | /* Remove from NHT */ |
2229 | if (CHECK_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE)) | |
2230 | bgp_unlink_nexthop_by_peer(peer); | |
1ff9a340 | 2231 | |
d62a17ae | 2232 | /* Password configuration */ |
2233 | if (peer->password) { | |
2234 | XFREE(MTYPE_PEER_PASSWORD, peer->password); | |
2235 | peer->password = NULL; | |
1ff9a340 | 2236 | |
d62a17ae | 2237 | if (!accept_peer && !BGP_PEER_SU_UNSPEC(peer) |
2238 | && !CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
2239 | bgp_md5_unset(peer); | |
1ff9a340 | 2240 | } |
718e3744 | 2241 | |
d62a17ae | 2242 | bgp_timer_set(peer); /* stops all timers for Deleted */ |
718e3744 | 2243 | |
d62a17ae | 2244 | /* Delete from all peer list. */ |
2245 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP) | |
2246 | && (pn = listnode_lookup(bgp->peer, peer))) { | |
2247 | peer_unlock(peer); /* bgp peer list reference */ | |
2248 | list_delete_node(bgp->peer, pn); | |
2249 | hash_release(bgp->peerhash, peer); | |
2250 | } | |
718e3744 | 2251 | |
d62a17ae | 2252 | /* Buffers. */ |
2253 | if (peer->ibuf) { | |
424ab01d | 2254 | stream_fifo_free(peer->ibuf); |
d62a17ae | 2255 | peer->ibuf = NULL; |
2256 | } | |
f14e6fdb | 2257 | |
d62a17ae | 2258 | if (peer->obuf) { |
2259 | stream_fifo_free(peer->obuf); | |
2260 | peer->obuf = NULL; | |
2261 | } | |
f14e6fdb | 2262 | |
424ab01d | 2263 | if (peer->ibuf_work) { |
74ffbfe6 | 2264 | ringbuf_del(peer->ibuf_work); |
424ab01d QY |
2265 | peer->ibuf_work = NULL; |
2266 | } | |
2267 | ||
2268 | if (peer->obuf_work) { | |
2269 | stream_free(peer->obuf_work); | |
2270 | peer->obuf_work = NULL; | |
d62a17ae | 2271 | } |
f14e6fdb | 2272 | |
d62a17ae | 2273 | if (peer->scratch) { |
2274 | stream_free(peer->scratch); | |
2275 | peer->scratch = NULL; | |
2276 | } | |
f14e6fdb | 2277 | |
d62a17ae | 2278 | /* Local and remote addresses. */ |
2279 | if (peer->su_local) { | |
2280 | sockunion_free(peer->su_local); | |
2281 | peer->su_local = NULL; | |
2282 | } | |
f14e6fdb | 2283 | |
d62a17ae | 2284 | if (peer->su_remote) { |
2285 | sockunion_free(peer->su_remote); | |
2286 | peer->su_remote = NULL; | |
2287 | } | |
f14e6fdb | 2288 | |
d62a17ae | 2289 | /* Free filter related memory. */ |
05c7a1cc QY |
2290 | FOREACH_AFI_SAFI (afi, safi) { |
2291 | filter = &peer->filter[afi][safi]; | |
d62a17ae | 2292 | |
05c7a1cc QY |
2293 | for (i = FILTER_IN; i < FILTER_MAX; i++) { |
2294 | if (filter->dlist[i].name) { | |
2295 | XFREE(MTYPE_BGP_FILTER_NAME, | |
2296 | filter->dlist[i].name); | |
2297 | filter->dlist[i].name = NULL; | |
d62a17ae | 2298 | } |
2299 | ||
05c7a1cc QY |
2300 | if (filter->plist[i].name) { |
2301 | XFREE(MTYPE_BGP_FILTER_NAME, | |
2302 | filter->plist[i].name); | |
2303 | filter->plist[i].name = NULL; | |
d62a17ae | 2304 | } |
2305 | ||
05c7a1cc | 2306 | if (filter->aslist[i].name) { |
d62a17ae | 2307 | XFREE(MTYPE_BGP_FILTER_NAME, |
05c7a1cc QY |
2308 | filter->aslist[i].name); |
2309 | filter->aslist[i].name = NULL; | |
d62a17ae | 2310 | } |
05c7a1cc | 2311 | } |
d62a17ae | 2312 | |
05c7a1cc QY |
2313 | for (i = RMAP_IN; i < RMAP_MAX; i++) { |
2314 | if (filter->map[i].name) { | |
2315 | XFREE(MTYPE_BGP_FILTER_NAME, | |
2316 | filter->map[i].name); | |
2317 | filter->map[i].name = NULL; | |
d62a17ae | 2318 | } |
2319 | } | |
f14e6fdb | 2320 | |
05c7a1cc QY |
2321 | if (filter->usmap.name) { |
2322 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
2323 | filter->usmap.name = NULL; | |
2324 | } | |
2325 | ||
2326 | if (peer->default_rmap[afi][safi].name) { | |
2327 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
2328 | peer->default_rmap[afi][safi].name); | |
2329 | peer->default_rmap[afi][safi].name = NULL; | |
2330 | } | |
2331 | } | |
2332 | ||
a2addae8 RW |
2333 | FOREACH_AFI_SAFI (afi, safi) |
2334 | peer_af_delete(peer, afi, safi); | |
f14e6fdb | 2335 | |
d62a17ae | 2336 | if (peer->hostname) { |
2337 | XFREE(MTYPE_BGP_PEER_HOST, peer->hostname); | |
2338 | peer->hostname = NULL; | |
2339 | } | |
f14e6fdb | 2340 | |
d62a17ae | 2341 | if (peer->domainname) { |
2342 | XFREE(MTYPE_BGP_PEER_HOST, peer->domainname); | |
2343 | peer->domainname = NULL; | |
2344 | } | |
f14e6fdb | 2345 | |
d62a17ae | 2346 | peer_unlock(peer); /* initial reference */ |
f14e6fdb | 2347 | |
d62a17ae | 2348 | return 0; |
fe7d2a48 DS |
2349 | } |
2350 | ||
d62a17ae | 2351 | static int peer_group_cmp(struct peer_group *g1, struct peer_group *g2) |
2352 | { | |
2353 | return strcmp(g1->name, g2->name); | |
6aeb9e78 DS |
2354 | } |
2355 | ||
d62a17ae | 2356 | /* Peer group cofiguration. */ |
2357 | static struct peer_group *peer_group_new(void) | |
718e3744 | 2358 | { |
d62a17ae | 2359 | return (struct peer_group *)XCALLOC(MTYPE_PEER_GROUP, |
2360 | sizeof(struct peer_group)); | |
718e3744 | 2361 | } |
2362 | ||
d62a17ae | 2363 | static void peer_group_free(struct peer_group *group) |
718e3744 | 2364 | { |
d62a17ae | 2365 | XFREE(MTYPE_PEER_GROUP, group); |
718e3744 | 2366 | } |
2367 | ||
d62a17ae | 2368 | struct peer_group *peer_group_lookup(struct bgp *bgp, const char *name) |
718e3744 | 2369 | { |
d62a17ae | 2370 | struct peer_group *group; |
2371 | struct listnode *node, *nnode; | |
2372 | ||
2373 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
2374 | if (strcmp(group->name, name) == 0) | |
2375 | return group; | |
2376 | } | |
2377 | return NULL; | |
2378 | } | |
2379 | ||
2380 | struct peer_group *peer_group_get(struct bgp *bgp, const char *name) | |
2381 | { | |
2382 | struct peer_group *group; | |
2383 | afi_t afi; | |
2384 | ||
2385 | group = peer_group_lookup(bgp, name); | |
2386 | if (group) | |
2387 | return group; | |
2388 | ||
2389 | group = peer_group_new(); | |
2390 | group->bgp = bgp; | |
2391 | if (group->name) | |
2392 | XFREE(MTYPE_PEER_GROUP_HOST, group->name); | |
2393 | group->name = XSTRDUP(MTYPE_PEER_GROUP_HOST, name); | |
2394 | group->peer = list_new(); | |
2395 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
2396 | group->listen_range[afi] = list_new(); | |
2397 | group->conf = peer_new(bgp); | |
2398 | if (!bgp_flag_check(bgp, BGP_FLAG_NO_DEFAULT_IPV4)) | |
2399 | group->conf->afc[AFI_IP][SAFI_UNICAST] = 1; | |
2400 | if (group->conf->host) | |
2401 | XFREE(MTYPE_BGP_PEER_HOST, group->conf->host); | |
2402 | group->conf->host = XSTRDUP(MTYPE_BGP_PEER_HOST, name); | |
2403 | group->conf->group = group; | |
2404 | group->conf->as = 0; | |
2405 | group->conf->ttl = 1; | |
2406 | group->conf->gtsm_hops = 0; | |
2407 | group->conf->v_routeadv = BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 2408 | SET_FLAG(group->conf->sflags, PEER_STATUS_GROUP); |
2409 | listnode_add_sort(bgp->group, group); | |
718e3744 | 2410 | |
d62a17ae | 2411 | return group; |
718e3744 | 2412 | } |
2413 | ||
d62a17ae | 2414 | static void peer_group2peer_config_copy(struct peer_group *group, |
2415 | struct peer *peer) | |
ad4cbda1 | 2416 | { |
d62a17ae | 2417 | struct peer *conf; |
ad4cbda1 | 2418 | |
d62a17ae | 2419 | conf = group->conf; |
ad4cbda1 | 2420 | |
d62a17ae | 2421 | /* remote-as */ |
2422 | if (conf->as) | |
2423 | peer->as = conf->as; | |
718e3744 | 2424 | |
d62a17ae | 2425 | /* remote-as */ |
2426 | if (conf->change_local_as) | |
2427 | peer->change_local_as = conf->change_local_as; | |
1758dbaa | 2428 | |
d62a17ae | 2429 | /* TTL */ |
2430 | peer->ttl = conf->ttl; | |
518f0eb1 | 2431 | |
d62a17ae | 2432 | /* GTSM hops */ |
2433 | peer->gtsm_hops = conf->gtsm_hops; | |
ad12dde6 | 2434 | |
89898ced | 2435 | /* These are per-peer specific flags and so we must preserve them */ |
527de3dc | 2436 | peer->flags |= conf->flags & ~peer->flags_override; |
9fb964de | 2437 | peer->flags_invert |= conf->flags_invert; |
ad4cbda1 | 2438 | |
d62a17ae | 2439 | /* peer timers apply */ |
b90a8e13 PM |
2440 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_TIMER)) { |
2441 | PEER_ATTR_INHERIT(peer, group, holdtime); | |
2442 | PEER_ATTR_INHERIT(peer, group, keepalive); | |
2443 | } | |
6aeb9e78 | 2444 | |
b90a8e13 PM |
2445 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_TIMER_CONNECT)) { |
2446 | PEER_ATTR_INHERIT(peer, group, connect); | |
2447 | if (CHECK_FLAG(conf->flags, PEER_FLAG_TIMER_CONNECT)) | |
2448 | peer->v_connect = conf->connect; | |
2449 | else | |
2450 | peer->v_connect = BGP_DEFAULT_CONNECT_RETRY; | |
2451 | } | |
2452 | ||
2453 | /* advertisement-interval apply */ | |
2454 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_ROUTEADV)) { | |
2455 | PEER_ATTR_INHERIT(peer, group, routeadv); | |
2456 | if (CHECK_FLAG(conf->flags, PEER_FLAG_ROUTEADV)) | |
2457 | peer->v_routeadv = conf->routeadv; | |
2458 | else | |
2459 | peer->v_routeadv = (peer_sort(peer) == BGP_PEER_IBGP) | |
2460 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
2461 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
2462 | } | |
718e3744 | 2463 | |
d62a17ae | 2464 | /* password apply */ |
2465 | if (conf->password && !peer->password) | |
2466 | peer->password = XSTRDUP(MTYPE_PEER_PASSWORD, conf->password); | |
718e3744 | 2467 | |
d62a17ae | 2468 | if (!BGP_PEER_SU_UNSPEC(peer)) |
2469 | bgp_md5_set(peer); | |
d4a7a753 | 2470 | |
d62a17ae | 2471 | /* update-source apply */ |
2472 | if (conf->update_source) { | |
2473 | if (peer->update_source) | |
2474 | sockunion_free(peer->update_source); | |
2475 | if (peer->update_if) { | |
2476 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); | |
2477 | peer->update_if = NULL; | |
2478 | } | |
2479 | peer->update_source = sockunion_dup(conf->update_source); | |
2480 | } else if (conf->update_if) { | |
2481 | if (peer->update_if) | |
2482 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); | |
2483 | if (peer->update_source) { | |
2484 | sockunion_free(peer->update_source); | |
2485 | peer->update_source = NULL; | |
2486 | } | |
2487 | peer->update_if = | |
2488 | XSTRDUP(MTYPE_PEER_UPDATE_SOURCE, conf->update_if); | |
2489 | } | |
cd92e548 | 2490 | |
d62a17ae | 2491 | bgp_bfd_peer_group2peer_copy(conf, peer); |
ad4cbda1 | 2492 | } |
718e3744 | 2493 | |
d62a17ae | 2494 | /* Peer group's remote AS configuration. */ |
2495 | int peer_group_remote_as(struct bgp *bgp, const char *group_name, as_t *as, | |
2496 | int as_type) | |
f14e6fdb | 2497 | { |
d62a17ae | 2498 | struct peer_group *group; |
2499 | struct peer *peer; | |
2500 | struct listnode *node, *nnode; | |
f14e6fdb | 2501 | |
d62a17ae | 2502 | group = peer_group_lookup(bgp, group_name); |
2503 | if (!group) | |
2504 | return -1; | |
f14e6fdb | 2505 | |
d62a17ae | 2506 | if ((as_type == group->conf->as_type) && (group->conf->as == *as)) |
2507 | return 0; | |
f14e6fdb | 2508 | |
f14e6fdb | 2509 | |
d62a17ae | 2510 | /* When we setup peer-group AS number all peer group member's AS |
2511 | number must be updated to same number. */ | |
2512 | peer_as_change(group->conf, *as, as_type); | |
f14e6fdb | 2513 | |
d62a17ae | 2514 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { |
2515 | if (((peer->as_type == AS_SPECIFIED) && peer->as != *as) | |
2516 | || (peer->as_type != as_type)) | |
2517 | peer_as_change(peer, *as, as_type); | |
2518 | } | |
f14e6fdb | 2519 | |
d62a17ae | 2520 | return 0; |
f14e6fdb DS |
2521 | } |
2522 | ||
d62a17ae | 2523 | int peer_group_delete(struct peer_group *group) |
f14e6fdb | 2524 | { |
d62a17ae | 2525 | struct bgp *bgp; |
2526 | struct peer *peer; | |
2527 | struct prefix *prefix; | |
2528 | struct peer *other; | |
2529 | struct listnode *node, *nnode; | |
2530 | afi_t afi; | |
f14e6fdb | 2531 | |
d62a17ae | 2532 | bgp = group->bgp; |
f14e6fdb | 2533 | |
d62a17ae | 2534 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { |
2535 | other = peer->doppelganger; | |
2536 | peer_delete(peer); | |
2537 | if (other && other->status != Deleted) { | |
2538 | other->group = NULL; | |
2539 | peer_delete(other); | |
2540 | } | |
2541 | } | |
affe9e99 | 2542 | list_delete_and_null(&group->peer); |
f14e6fdb | 2543 | |
d62a17ae | 2544 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
2545 | for (ALL_LIST_ELEMENTS(group->listen_range[afi], node, nnode, | |
2546 | prefix)) { | |
2547 | prefix_free(prefix); | |
2548 | } | |
affe9e99 | 2549 | list_delete_and_null(&group->listen_range[afi]); |
d62a17ae | 2550 | } |
f14e6fdb | 2551 | |
d62a17ae | 2552 | XFREE(MTYPE_PEER_GROUP_HOST, group->name); |
2553 | group->name = NULL; | |
0299c004 | 2554 | |
d62a17ae | 2555 | bfd_info_free(&(group->conf->bfd_info)); |
f14e6fdb | 2556 | |
d62a17ae | 2557 | group->conf->group = NULL; |
2558 | peer_delete(group->conf); | |
f14e6fdb | 2559 | |
d62a17ae | 2560 | /* Delete from all peer_group list. */ |
2561 | listnode_delete(bgp->group, group); | |
f14e6fdb | 2562 | |
d62a17ae | 2563 | peer_group_free(group); |
f14e6fdb | 2564 | |
d62a17ae | 2565 | return 0; |
2566 | } | |
f14e6fdb | 2567 | |
d62a17ae | 2568 | int peer_group_remote_as_delete(struct peer_group *group) |
2569 | { | |
2570 | struct peer *peer, *other; | |
2571 | struct listnode *node, *nnode; | |
f14e6fdb | 2572 | |
d62a17ae | 2573 | if ((group->conf->as_type == AS_UNSPECIFIED) |
2574 | || ((!group->conf->as) && (group->conf->as_type == AS_SPECIFIED))) | |
2575 | return 0; | |
f14e6fdb | 2576 | |
d62a17ae | 2577 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { |
2578 | other = peer->doppelganger; | |
f14e6fdb | 2579 | |
d62a17ae | 2580 | peer_delete(peer); |
f14e6fdb | 2581 | |
d62a17ae | 2582 | if (other && other->status != Deleted) { |
2583 | other->group = NULL; | |
2584 | peer_delete(other); | |
2585 | } | |
2586 | } | |
2587 | list_delete_all_node(group->peer); | |
f14e6fdb | 2588 | |
d62a17ae | 2589 | group->conf->as = 0; |
2590 | group->conf->as_type = AS_UNSPECIFIED; | |
f14e6fdb | 2591 | |
d62a17ae | 2592 | return 0; |
f14e6fdb | 2593 | } |
d62a17ae | 2594 | |
2595 | int peer_group_listen_range_add(struct peer_group *group, struct prefix *range) | |
f14e6fdb | 2596 | { |
d62a17ae | 2597 | struct prefix *prefix; |
2598 | struct listnode *node, *nnode; | |
2599 | afi_t afi; | |
f14e6fdb | 2600 | |
d62a17ae | 2601 | afi = family2afi(range->family); |
f14e6fdb | 2602 | |
d62a17ae | 2603 | /* Group needs remote AS configured. */ |
2604 | if (group->conf->as_type == AS_UNSPECIFIED) | |
2605 | return BGP_ERR_PEER_GROUP_NO_REMOTE_AS; | |
718e3744 | 2606 | |
d62a17ae | 2607 | /* Ensure no duplicates. Currently we don't care about overlaps. */ |
2608 | for (ALL_LIST_ELEMENTS(group->listen_range[afi], node, nnode, prefix)) { | |
2609 | if (prefix_same(range, prefix)) | |
2610 | return 0; | |
2611 | } | |
2612 | ||
2613 | prefix = prefix_new(); | |
2614 | prefix_copy(prefix, range); | |
2615 | listnode_add(group->listen_range[afi], prefix); | |
2616 | return 0; | |
718e3744 | 2617 | } |
6b0655a2 | 2618 | |
d62a17ae | 2619 | int peer_group_listen_range_del(struct peer_group *group, struct prefix *range) |
718e3744 | 2620 | { |
d62a17ae | 2621 | struct prefix *prefix, prefix2; |
2622 | struct listnode *node, *nnode; | |
2623 | struct peer *peer; | |
2624 | afi_t afi; | |
2625 | char buf[PREFIX2STR_BUFFER]; | |
718e3744 | 2626 | |
d62a17ae | 2627 | afi = family2afi(range->family); |
1ff9a340 | 2628 | |
d62a17ae | 2629 | /* Identify the listen range. */ |
2630 | for (ALL_LIST_ELEMENTS(group->listen_range[afi], node, nnode, prefix)) { | |
2631 | if (prefix_same(range, prefix)) | |
2632 | break; | |
1ff9a340 | 2633 | } |
718e3744 | 2634 | |
d62a17ae | 2635 | if (!prefix) |
2636 | return BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_NOT_FOUND; | |
2637 | ||
2638 | prefix2str(prefix, buf, sizeof(buf)); | |
2639 | ||
2640 | /* Dispose off any dynamic neighbors that exist due to this listen range | |
2641 | */ | |
2642 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
2643 | if (!peer_dynamic_neighbor(peer)) | |
2644 | continue; | |
2645 | ||
2646 | sockunion2hostprefix(&peer->su, &prefix2); | |
2647 | if (prefix_match(prefix, &prefix2)) { | |
2648 | if (bgp_debug_neighbor_events(peer)) | |
2649 | zlog_debug( | |
2650 | "Deleting dynamic neighbor %s group %s upon " | |
2651 | "delete of listen range %s", | |
2652 | peer->host, group->name, buf); | |
2653 | peer_delete(peer); | |
2654 | } | |
2655 | } | |
718e3744 | 2656 | |
d62a17ae | 2657 | /* Get rid of the listen range */ |
2658 | listnode_delete(group->listen_range[afi], prefix); | |
718e3744 | 2659 | |
d62a17ae | 2660 | return 0; |
2661 | } | |
e0701b79 | 2662 | |
d62a17ae | 2663 | /* Bind specified peer to peer group. */ |
2664 | int peer_group_bind(struct bgp *bgp, union sockunion *su, struct peer *peer, | |
2665 | struct peer_group *group, as_t *as) | |
2666 | { | |
2667 | int first_member = 0; | |
2668 | afi_t afi; | |
2669 | safi_t safi; | |
2670 | int cap_enhe_preset = 0; | |
2671 | ||
2672 | /* Lookup the peer. */ | |
2673 | if (!peer) | |
2674 | peer = peer_lookup(bgp, su); | |
2675 | ||
2676 | /* The peer exist, bind it to the peer-group */ | |
2677 | if (peer) { | |
ed9fb826 | 2678 | /* When the peer already belongs to a peer-group, check the |
d62a17ae | 2679 | * consistency. */ |
ed9fb826 DW |
2680 | if (peer_group_active(peer)) { |
2681 | ||
2682 | /* The peer is already bound to the peer-group, | |
d8a079e8 DW |
2683 | * nothing to do |
2684 | */ | |
ed9fb826 DW |
2685 | if (strcmp(peer->group->name, group->name) == 0) |
2686 | return 0; | |
2687 | else | |
2688 | return BGP_ERR_PEER_GROUP_CANT_CHANGE; | |
2689 | } | |
d62a17ae | 2690 | |
2691 | /* The peer has not specified a remote-as, inherit it from the | |
2692 | * peer-group */ | |
2693 | if (peer->as_type == AS_UNSPECIFIED) { | |
2694 | peer->as_type = group->conf->as_type; | |
2695 | peer->as = group->conf->as; | |
2696 | } | |
718e3744 | 2697 | |
d62a17ae | 2698 | if (!group->conf->as) { |
2699 | if (peer_sort(group->conf) != BGP_PEER_INTERNAL | |
2700 | && peer_sort(group->conf) != peer_sort(peer)) { | |
2701 | if (as) | |
2702 | *as = peer->as; | |
2703 | return BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT; | |
2704 | } | |
718e3744 | 2705 | |
d62a17ae | 2706 | if (peer_sort(group->conf) == BGP_PEER_INTERNAL) |
2707 | first_member = 1; | |
2708 | } | |
718e3744 | 2709 | |
d62a17ae | 2710 | if (CHECK_FLAG(peer->flags, PEER_FLAG_CAPABILITY_ENHE)) |
2711 | cap_enhe_preset = 1; | |
2712 | ||
2713 | peer_group2peer_config_copy(group, peer); | |
2714 | ||
2715 | /* | |
2716 | * Capability extended-nexthop is enabled for an interface | |
2717 | * neighbor by | |
2718 | * default. So, fix that up here. | |
2719 | */ | |
2720 | if (peer->conf_if && cap_enhe_preset) | |
2721 | peer_flag_set(peer, PEER_FLAG_CAPABILITY_ENHE); | |
2722 | ||
05c7a1cc QY |
2723 | FOREACH_AFI_SAFI (afi, safi) { |
2724 | if (group->conf->afc[afi][safi]) { | |
2725 | peer->afc[afi][safi] = 1; | |
2726 | ||
2727 | if (peer_af_find(peer, afi, safi) | |
2728 | || peer_af_create(peer, afi, safi)) { | |
2729 | peer_group2peer_config_copy_af( | |
2730 | group, peer, afi, safi); | |
2731 | } | |
2732 | } else if (peer->afc[afi][safi]) | |
2733 | peer_deactivate(peer, afi, safi); | |
a4d82a8a | 2734 | } |
d62a17ae | 2735 | |
2736 | if (peer->group) { | |
2737 | assert(group && peer->group == group); | |
2738 | } else { | |
2739 | struct listnode *pn; | |
2740 | pn = listnode_lookup(bgp->peer, peer); | |
2741 | list_delete_node(bgp->peer, pn); | |
2742 | peer->group = group; | |
2743 | listnode_add_sort(bgp->peer, peer); | |
2744 | ||
2745 | peer = peer_lock(peer); /* group->peer list reference */ | |
2746 | listnode_add(group->peer, peer); | |
2747 | } | |
718e3744 | 2748 | |
d62a17ae | 2749 | if (first_member) { |
2750 | /* Advertisement-interval reset */ | |
b90a8e13 PM |
2751 | if (!CHECK_FLAG(group->conf->flags, |
2752 | PEER_FLAG_ROUTEADV)) { | |
2753 | group->conf->v_routeadv = | |
2754 | (peer_sort(group->conf) | |
2755 | == BGP_PEER_IBGP) | |
2756 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
2757 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 2758 | } |
2759 | ||
2760 | /* ebgp-multihop reset */ | |
2761 | if (peer_sort(group->conf) == BGP_PEER_IBGP) | |
2762 | group->conf->ttl = MAXTTL; | |
2763 | ||
2764 | /* local-as reset */ | |
2765 | if (peer_sort(group->conf) != BGP_PEER_EBGP) { | |
2766 | group->conf->change_local_as = 0; | |
2767 | UNSET_FLAG(peer->flags, | |
2768 | PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
2769 | UNSET_FLAG(peer->flags, | |
2770 | PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
2771 | } | |
2772 | } | |
718e3744 | 2773 | |
d62a17ae | 2774 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); |
718e3744 | 2775 | |
d62a17ae | 2776 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
2777 | peer->last_reset = PEER_DOWN_RMAP_BIND; | |
2778 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
2779 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
2780 | } else { | |
2781 | bgp_session_reset(peer); | |
2782 | } | |
2783 | } | |
718e3744 | 2784 | |
d62a17ae | 2785 | /* Create a new peer. */ |
2786 | else { | |
2787 | if ((group->conf->as_type == AS_SPECIFIED) | |
2788 | && (!group->conf->as)) { | |
2789 | return BGP_ERR_PEER_GROUP_NO_REMOTE_AS; | |
2790 | } | |
718e3744 | 2791 | |
d62a17ae | 2792 | peer = peer_create(su, NULL, bgp, bgp->as, group->conf->as, |
2793 | group->conf->as_type, 0, 0, group); | |
718e3744 | 2794 | |
d62a17ae | 2795 | peer = peer_lock(peer); /* group->peer list reference */ |
2796 | listnode_add(group->peer, peer); | |
718e3744 | 2797 | |
d62a17ae | 2798 | peer_group2peer_config_copy(group, peer); |
a4ed4829 | 2799 | |
d62a17ae | 2800 | /* If the peer-group is active for this afi/safi then activate |
2801 | * for this peer */ | |
05c7a1cc QY |
2802 | FOREACH_AFI_SAFI (afi, safi) { |
2803 | if (group->conf->afc[afi][safi]) { | |
2804 | peer->afc[afi][safi] = 1; | |
2805 | peer_af_create(peer, afi, safi); | |
2806 | peer_group2peer_config_copy_af(group, peer, afi, | |
2807 | safi); | |
2808 | } else if (peer->afc[afi][safi]) | |
2809 | peer_deactivate(peer, afi, safi); | |
2810 | } | |
718e3744 | 2811 | |
d62a17ae | 2812 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); |
718e3744 | 2813 | |
d62a17ae | 2814 | /* Set up peer's events and timers. */ |
2815 | if (peer_active(peer)) | |
2816 | bgp_timer_set(peer); | |
2817 | } | |
718e3744 | 2818 | |
d62a17ae | 2819 | return 0; |
718e3744 | 2820 | } |
2821 | ||
d62a17ae | 2822 | int peer_group_unbind(struct bgp *bgp, struct peer *peer, |
2823 | struct peer_group *group) | |
718e3744 | 2824 | { |
d62a17ae | 2825 | struct peer *other; |
2826 | afi_t afi; | |
2827 | safi_t safi; | |
718e3744 | 2828 | |
d62a17ae | 2829 | if (group != peer->group) |
2830 | return BGP_ERR_PEER_GROUP_MISMATCH; | |
718e3744 | 2831 | |
05c7a1cc QY |
2832 | FOREACH_AFI_SAFI (afi, safi) { |
2833 | if (peer->afc[afi][safi]) { | |
2834 | peer->afc[afi][safi] = 0; | |
2835 | peer_af_flag_reset(peer, afi, safi); | |
2836 | ||
2837 | if (peer_af_delete(peer, afi, safi) != 0) { | |
2838 | zlog_err( | |
2839 | "couldn't delete af structure for peer %s", | |
2840 | peer->host); | |
d62a17ae | 2841 | } |
2842 | } | |
05c7a1cc | 2843 | } |
718e3744 | 2844 | |
d62a17ae | 2845 | assert(listnode_lookup(group->peer, peer)); |
2846 | peer_unlock(peer); /* peer group list reference */ | |
2847 | listnode_delete(group->peer, peer); | |
2848 | peer->group = NULL; | |
2849 | other = peer->doppelganger; | |
2850 | ||
2851 | if (group->conf->as) { | |
2852 | peer_delete(peer); | |
2853 | if (other && other->status != Deleted) { | |
2854 | if (other->group) { | |
2855 | peer_unlock(other); | |
2856 | listnode_delete(group->peer, other); | |
2857 | } | |
2858 | other->group = NULL; | |
2859 | peer_delete(other); | |
2860 | } | |
2861 | return 0; | |
2862 | } | |
718e3744 | 2863 | |
d62a17ae | 2864 | bgp_bfd_deregister_peer(peer); |
2865 | peer_global_config_reset(peer); | |
718e3744 | 2866 | |
d62a17ae | 2867 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
2868 | peer->last_reset = PEER_DOWN_RMAP_UNBIND; | |
2869 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
2870 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
2871 | } else | |
2872 | bgp_session_reset(peer); | |
c7122e14 | 2873 | |
718e3744 | 2874 | return 0; |
d62a17ae | 2875 | } |
718e3744 | 2876 | |
d62a17ae | 2877 | static int bgp_startup_timer_expire(struct thread *thread) |
2878 | { | |
2879 | struct bgp *bgp; | |
718e3744 | 2880 | |
d62a17ae | 2881 | bgp = THREAD_ARG(thread); |
2882 | bgp->t_startup = NULL; | |
718e3744 | 2883 | |
d62a17ae | 2884 | return 0; |
2885 | } | |
e0701b79 | 2886 | |
829e590b DS |
2887 | /* |
2888 | * On shutdown we call the cleanup function which | |
2889 | * does a free of the link list nodes, free up | |
2890 | * the data we are pointing at too. | |
2891 | */ | |
2892 | static void bgp_vrf_string_name_delete(void *data) | |
2893 | { | |
2894 | char *vname = data; | |
2895 | ||
2896 | XFREE(MTYPE_TMP, vname); | |
2897 | } | |
2898 | ||
d62a17ae | 2899 | /* BGP instance creation by `router bgp' commands. */ |
2900 | static struct bgp *bgp_create(as_t *as, const char *name, | |
2901 | enum bgp_instance_type inst_type) | |
2902 | { | |
0291c246 MK |
2903 | struct bgp *bgp; |
2904 | afi_t afi; | |
2905 | safi_t safi; | |
d62a17ae | 2906 | |
2907 | if ((bgp = XCALLOC(MTYPE_BGP, sizeof(struct bgp))) == NULL) | |
2908 | return NULL; | |
2909 | ||
2910 | if (BGP_DEBUG(zebra, ZEBRA)) { | |
2911 | if (inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
2912 | zlog_debug("Creating Default VRF, AS %u", *as); | |
2913 | else | |
2914 | zlog_debug("Creating %s %s, AS %u", | |
2915 | (inst_type == BGP_INSTANCE_TYPE_VRF) | |
2916 | ? "VRF" | |
2917 | : "VIEW", | |
2918 | name, *as); | |
718e3744 | 2919 | } |
adbac85e | 2920 | |
d62a17ae | 2921 | bgp_lock(bgp); |
9df5ac49 | 2922 | bgp->heuristic_coalesce = true; |
d62a17ae | 2923 | bgp->inst_type = inst_type; |
2924 | bgp->vrf_id = (inst_type == BGP_INSTANCE_TYPE_DEFAULT) ? VRF_DEFAULT | |
2925 | : VRF_UNKNOWN; | |
2926 | bgp->peer_self = peer_new(bgp); | |
2927 | if (bgp->peer_self->host) | |
2928 | XFREE(MTYPE_BGP_PEER_HOST, bgp->peer_self->host); | |
2929 | bgp->peer_self->host = | |
2930 | XSTRDUP(MTYPE_BGP_PEER_HOST, "Static announcement"); | |
d77114b7 MK |
2931 | if (bgp->peer_self->hostname != NULL) { |
2932 | XFREE(MTYPE_BGP_PEER_HOST, bgp->peer_self->hostname); | |
2933 | bgp->peer_self->hostname = NULL; | |
2934 | } | |
6b3ee3a0 | 2935 | if (cmd_hostname_get()) |
60466a63 QY |
2936 | bgp->peer_self->hostname = |
2937 | XSTRDUP(MTYPE_BGP_PEER_HOST, cmd_hostname_get()); | |
d77114b7 MK |
2938 | |
2939 | if (bgp->peer_self->domainname != NULL) { | |
2940 | XFREE(MTYPE_BGP_PEER_HOST, bgp->peer_self->domainname); | |
2941 | bgp->peer_self->domainname = NULL; | |
2942 | } | |
6b3ee3a0 | 2943 | if (cmd_domainname_get()) |
60466a63 QY |
2944 | bgp->peer_self->domainname = |
2945 | XSTRDUP(MTYPE_BGP_PEER_HOST, cmd_domainname_get()); | |
d62a17ae | 2946 | bgp->peer = list_new(); |
2947 | bgp->peer->cmp = (int (*)(void *, void *))peer_cmp; | |
a4d82a8a | 2948 | bgp->peerhash = hash_create(peer_hash_key_make, peer_hash_same, |
3f65c5b1 | 2949 | "BGP Peer Hash"); |
40520c36 | 2950 | bgp->peerhash->max_size = BGP_PEER_MAX_HASH_SIZE; |
d62a17ae | 2951 | |
2952 | bgp->group = list_new(); | |
2953 | bgp->group->cmp = (int (*)(void *, void *))peer_group_cmp; | |
2954 | ||
05c7a1cc | 2955 | FOREACH_AFI_SAFI (afi, safi) { |
960035b2 PZ |
2956 | bgp->route[afi][safi] = bgp_table_init(bgp, afi, safi); |
2957 | bgp->aggregate[afi][safi] = bgp_table_init(bgp, afi, safi); | |
2958 | bgp->rib[afi][safi] = bgp_table_init(bgp, afi, safi); | |
05c7a1cc QY |
2959 | |
2960 | /* Enable maximum-paths */ | |
2961 | bgp_maximum_paths_set(bgp, afi, safi, BGP_PEER_EBGP, | |
2962 | multipath_num, 0); | |
2963 | bgp_maximum_paths_set(bgp, afi, safi, BGP_PEER_IBGP, | |
2964 | multipath_num, 0); | |
2965 | } | |
d62a17ae | 2966 | |
2967 | bgp->v_update_delay = BGP_UPDATE_DELAY_DEF; | |
2968 | bgp->default_local_pref = BGP_DEFAULT_LOCAL_PREF; | |
2969 | bgp->default_subgroup_pkt_queue_max = | |
2970 | BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX; | |
2971 | bgp->default_holdtime = BGP_DEFAULT_HOLDTIME; | |
2972 | bgp->default_keepalive = BGP_DEFAULT_KEEPALIVE; | |
2973 | bgp->restart_time = BGP_DEFAULT_RESTART_TIME; | |
2974 | bgp->stalepath_time = BGP_DEFAULT_STALEPATH_TIME; | |
2975 | bgp->dynamic_neighbors_limit = BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT; | |
2976 | bgp->dynamic_neighbors_count = 0; | |
2977 | #if DFLT_BGP_IMPORT_CHECK | |
2978 | bgp_flag_set(bgp, BGP_FLAG_IMPORT_CHECK); | |
2979 | #endif | |
2980 | #if DFLT_BGP_SHOW_HOSTNAME | |
2981 | bgp_flag_set(bgp, BGP_FLAG_SHOW_HOSTNAME); | |
2982 | #endif | |
2983 | #if DFLT_BGP_LOG_NEIGHBOR_CHANGES | |
2984 | bgp_flag_set(bgp, BGP_FLAG_LOG_NEIGHBOR_CHANGES); | |
2985 | #endif | |
2986 | #if DFLT_BGP_DETERMINISTIC_MED | |
2987 | bgp_flag_set(bgp, BGP_FLAG_DETERMINISTIC_MED); | |
2988 | #endif | |
2989 | bgp->addpath_tx_id = BGP_ADDPATH_TX_ID_FOR_DEFAULT_ORIGINATE; | |
2990 | ||
2991 | bgp->as = *as; | |
2992 | ||
2993 | #if ENABLE_BGP_VNC | |
2994 | if (inst_type != BGP_INSTANCE_TYPE_VRF) { | |
2995 | bgp->rfapi = bgp_rfapi_new(bgp); | |
2996 | assert(bgp->rfapi); | |
2997 | assert(bgp->rfapi_cfg); | |
2998 | } | |
2999 | #endif /* ENABLE_BGP_VNC */ | |
adbac85e | 3000 | |
ddb5b488 | 3001 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
e70e9f8e PZ |
3002 | bgp->vpn_policy[afi].bgp = bgp; |
3003 | bgp->vpn_policy[afi].afi = afi; | |
ddb5b488 PZ |
3004 | bgp->vpn_policy[afi].tovpn_label = MPLS_LABEL_NONE; |
3005 | bgp->vpn_policy[afi].tovpn_zebra_vrf_label_last_sent = | |
3006 | MPLS_LABEL_NONE; | |
12a844a5 DS |
3007 | |
3008 | bgp->vpn_policy[afi].import_vrf = list_new(); | |
829e590b DS |
3009 | bgp->vpn_policy[afi].import_vrf->del = |
3010 | bgp_vrf_string_name_delete; | |
12a844a5 | 3011 | bgp->vpn_policy[afi].export_vrf = list_new(); |
829e590b DS |
3012 | bgp->vpn_policy[afi].export_vrf->del = |
3013 | bgp_vrf_string_name_delete; | |
ddb5b488 | 3014 | } |
d62a17ae | 3015 | if (name) { |
3016 | bgp->name = XSTRDUP(MTYPE_BGP, name); | |
3017 | } else { | |
3018 | /* TODO - The startup timer needs to be run for the whole of BGP | |
3019 | */ | |
3020 | thread_add_timer(bm->master, bgp_startup_timer_expire, bgp, | |
3021 | bgp->restart_time, &bgp->t_startup); | |
3022 | } | |
06370dac | 3023 | |
3572fb26 PZ |
3024 | /* printable name we can use in debug messages */ |
3025 | if (inst_type == BGP_INSTANCE_TYPE_DEFAULT) { | |
3026 | bgp->name_pretty = XSTRDUP(MTYPE_BGP, "VRF default"); | |
3027 | } else { | |
3028 | const char *n; | |
3029 | int len; | |
3030 | ||
3031 | if (bgp->name) | |
3032 | n = bgp->name; | |
3033 | else | |
3034 | n = "?"; | |
3035 | ||
3036 | len = 4 + 1 + strlen(n) + 1; /* "view foo\0" */ | |
3037 | ||
3038 | bgp->name_pretty = XCALLOC(MTYPE_BGP, len); | |
3039 | snprintf(bgp->name_pretty, len, "%s %s", | |
3040 | (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) | |
3041 | ? "VRF" | |
3042 | : "VIEW", | |
3043 | n); | |
3044 | } | |
3045 | ||
555e09d4 QY |
3046 | atomic_store_explicit(&bgp->wpkt_quanta, BGP_WRITE_PACKET_MAX, |
3047 | memory_order_relaxed); | |
3048 | atomic_store_explicit(&bgp->rpkt_quanta, BGP_READ_PACKET_MAX, | |
3049 | memory_order_relaxed); | |
d62a17ae | 3050 | bgp->coalesce_time = BGP_DEFAULT_SUBGROUP_COALESCE_TIME; |
adbac85e | 3051 | |
d62a17ae | 3052 | QOBJ_REG(bgp, bgp); |
adbac85e | 3053 | |
d62a17ae | 3054 | update_bgp_group_init(bgp); |
92708db6 | 3055 | |
3056 | /* assign a unique rd id for auto derivation of vrf's RD */ | |
3057 | bf_assign_index(bm->rd_idspace, bgp->vrf_rd_id); | |
3058 | ||
d62a17ae | 3059 | bgp_evpn_init(bgp); |
f3d32faa | 3060 | bgp_pbr_init(bgp); |
d62a17ae | 3061 | return bgp; |
718e3744 | 3062 | } |
3063 | ||
d62a17ae | 3064 | /* Return the "default VRF" instance of BGP. */ |
3065 | struct bgp *bgp_get_default(void) | |
718e3744 | 3066 | { |
d62a17ae | 3067 | struct bgp *bgp; |
3068 | struct listnode *node, *nnode; | |
3069 | ||
3070 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) | |
3071 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
3072 | return bgp; | |
3073 | return NULL; | |
718e3744 | 3074 | } |
3075 | ||
d62a17ae | 3076 | /* Lookup BGP entry. */ |
3077 | struct bgp *bgp_lookup(as_t as, const char *name) | |
718e3744 | 3078 | { |
d62a17ae | 3079 | struct bgp *bgp; |
3080 | struct listnode *node, *nnode; | |
6b0655a2 | 3081 | |
d62a17ae | 3082 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) |
3083 | if (bgp->as == as | |
3084 | && ((bgp->name == NULL && name == NULL) | |
3085 | || (bgp->name && name && strcmp(bgp->name, name) == 0))) | |
3086 | return bgp; | |
3087 | return NULL; | |
3088 | } | |
73d70fa6 | 3089 | |
d62a17ae | 3090 | /* Lookup BGP structure by view name. */ |
3091 | struct bgp *bgp_lookup_by_name(const char *name) | |
73d70fa6 | 3092 | { |
d62a17ae | 3093 | struct bgp *bgp; |
3094 | struct listnode *node, *nnode; | |
3095 | ||
3096 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) | |
3097 | if ((bgp->name == NULL && name == NULL) | |
3098 | || (bgp->name && name && strcmp(bgp->name, name) == 0)) | |
3099 | return bgp; | |
3100 | return NULL; | |
73d70fa6 DL |
3101 | } |
3102 | ||
d62a17ae | 3103 | /* Lookup BGP instance based on VRF id. */ |
3104 | /* Note: Only to be used for incoming messages from Zebra. */ | |
3105 | struct bgp *bgp_lookup_by_vrf_id(vrf_id_t vrf_id) | |
73d70fa6 | 3106 | { |
d62a17ae | 3107 | struct vrf *vrf; |
3108 | ||
3109 | /* Lookup VRF (in tree) and follow link. */ | |
3110 | vrf = vrf_lookup_by_id(vrf_id); | |
3111 | if (!vrf) | |
3112 | return NULL; | |
3113 | return (vrf->info) ? (struct bgp *)vrf->info : NULL; | |
73d70fa6 DL |
3114 | } |
3115 | ||
e5619c28 PG |
3116 | /* handle socket creation or deletion, if necessary |
3117 | * this is called for all new BGP instances | |
3118 | */ | |
996c9314 LB |
3119 | int bgp_handle_socket(struct bgp *bgp, struct vrf *vrf, vrf_id_t old_vrf_id, |
3120 | bool create) | |
e5619c28 PG |
3121 | { |
3122 | int ret = 0; | |
3123 | ||
3124 | /* Create BGP server socket, if listen mode not disabled */ | |
3125 | if (!bgp || bgp_option_check(BGP_OPT_NO_LISTEN)) | |
3126 | return 0; | |
3ad00234 | 3127 | if (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) { |
e5619c28 PG |
3128 | /* |
3129 | * suppress vrf socket | |
3130 | */ | |
3131 | if (create == FALSE) { | |
3ad00234 LB |
3132 | bgp_close_vrf_socket(bgp); |
3133 | return 0; | |
e5619c28 | 3134 | } |
3ad00234 LB |
3135 | if (vrf == NULL) |
3136 | return BGP_ERR_INVALID_VALUE; | |
e5619c28 PG |
3137 | /* do nothing |
3138 | * if vrf_id did not change | |
3139 | */ | |
3140 | if (vrf->vrf_id == old_vrf_id) | |
3141 | return 0; | |
3142 | if (old_vrf_id != VRF_UNKNOWN) { | |
3143 | /* look for old socket. close it. */ | |
3144 | bgp_close_vrf_socket(bgp); | |
3145 | } | |
3146 | /* if backend is not yet identified ( VRF_UNKNOWN) then | |
3147 | * creation will be done later | |
3148 | */ | |
3149 | if (vrf->vrf_id == VRF_UNKNOWN) | |
3150 | return 0; | |
3ad00234 LB |
3151 | ret = bgp_socket(bgp, bm->port, bm->address); |
3152 | if (ret < 0) | |
3153 | return BGP_ERR_INVALID_VALUE; | |
3154 | return 0; | |
3155 | } else | |
3156 | return bgp_check_main_socket(create, bgp); | |
e5619c28 PG |
3157 | } |
3158 | ||
d62a17ae | 3159 | /* Called from VTY commands. */ |
3160 | int bgp_get(struct bgp **bgp_val, as_t *as, const char *name, | |
3161 | enum bgp_instance_type inst_type) | |
3162 | { | |
3163 | struct bgp *bgp; | |
e5619c28 | 3164 | struct vrf *vrf = NULL; |
d62a17ae | 3165 | |
3166 | /* Multiple instance check. */ | |
3167 | if (bgp_option_check(BGP_OPT_MULTIPLE_INSTANCE)) { | |
3168 | if (name) | |
3169 | bgp = bgp_lookup_by_name(name); | |
3170 | else | |
3171 | bgp = bgp_get_default(); | |
3172 | ||
3173 | /* Already exists. */ | |
3174 | if (bgp) { | |
3175 | if (bgp->as != *as) { | |
3176 | *as = bgp->as; | |
3177 | return BGP_ERR_INSTANCE_MISMATCH; | |
3178 | } | |
3179 | if (bgp->inst_type != inst_type) | |
3180 | return BGP_ERR_INSTANCE_MISMATCH; | |
3181 | *bgp_val = bgp; | |
3182 | return 0; | |
3183 | } | |
3184 | } else { | |
3185 | /* BGP instance name can not be specified for single instance. | |
3186 | */ | |
3187 | if (name) | |
3188 | return BGP_ERR_MULTIPLE_INSTANCE_NOT_SET; | |
3189 | ||
3190 | /* Get default BGP structure if exists. */ | |
3191 | bgp = bgp_get_default(); | |
3192 | ||
3193 | if (bgp) { | |
3194 | if (bgp->as != *as) { | |
3195 | *as = bgp->as; | |
3196 | return BGP_ERR_AS_MISMATCH; | |
3197 | } | |
3198 | *bgp_val = bgp; | |
3199 | return 0; | |
3200 | } | |
3201 | } | |
73d70fa6 | 3202 | |
d62a17ae | 3203 | bgp = bgp_create(as, name, inst_type); |
3204 | bgp_router_id_set(bgp, &bgp->router_id_zebra); | |
3205 | bgp_address_init(bgp); | |
db0e1937 | 3206 | bgp_tip_hash_init(bgp); |
d62a17ae | 3207 | bgp_scan_init(bgp); |
3208 | *bgp_val = bgp; | |
eb821189 | 3209 | |
d62a17ae | 3210 | bgp->t_rmap_def_originate_eval = NULL; |
e5cc509c | 3211 | |
d62a17ae | 3212 | /* If Default instance or VRF, link to the VRF structure, if present. */ |
3213 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT | |
3214 | || bgp->inst_type == BGP_INSTANCE_TYPE_VRF) { | |
d62a17ae | 3215 | vrf = bgp_vrf_lookup_by_instance_type(bgp); |
3216 | if (vrf) | |
3217 | bgp_vrf_link(bgp, vrf); | |
3218 | } | |
e5619c28 PG |
3219 | /* BGP server socket already processed if BGP instance |
3220 | * already part of the list | |
3221 | */ | |
3222 | bgp_handle_socket(bgp, vrf, VRF_UNKNOWN, true); | |
3223 | listnode_add(bm->bgp, bgp); | |
718e3744 | 3224 | |
d62a17ae | 3225 | if (IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) |
3226 | bgp_zebra_instance_register(bgp); | |
718e3744 | 3227 | |
718e3744 | 3228 | |
d62a17ae | 3229 | return 0; |
718e3744 | 3230 | } |
6b0655a2 | 3231 | |
d62a17ae | 3232 | /* |
3233 | * Make BGP instance "up". Applies only to VRFs (non-default) and | |
3234 | * implies the VRF has been learnt from Zebra. | |
3235 | */ | |
3236 | void bgp_instance_up(struct bgp *bgp) | |
718e3744 | 3237 | { |
d62a17ae | 3238 | struct peer *peer; |
3239 | struct listnode *node, *next; | |
718e3744 | 3240 | |
d62a17ae | 3241 | /* Register with zebra. */ |
3242 | bgp_zebra_instance_register(bgp); | |
718e3744 | 3243 | |
d62a17ae | 3244 | /* Kick off any peers that may have been configured. */ |
3245 | for (ALL_LIST_ELEMENTS(bgp->peer, node, next, peer)) { | |
3246 | if (!BGP_PEER_START_SUPPRESSED(peer)) | |
3247 | BGP_EVENT_ADD(peer, BGP_Start); | |
718e3744 | 3248 | } |
3249 | ||
d62a17ae | 3250 | /* Process any networks that have been configured. */ |
3251 | bgp_static_add(bgp); | |
3252 | } | |
3253 | ||
3254 | /* | |
3255 | * Make BGP instance "down". Applies only to VRFs (non-default) and | |
3256 | * implies the VRF has been deleted by Zebra. | |
3257 | */ | |
3258 | void bgp_instance_down(struct bgp *bgp) | |
3259 | { | |
3260 | struct peer *peer; | |
3261 | struct listnode *node; | |
3262 | struct listnode *next; | |
3263 | ||
3264 | /* Stop timers. */ | |
3265 | if (bgp->t_rmap_def_originate_eval) { | |
3266 | BGP_TIMER_OFF(bgp->t_rmap_def_originate_eval); | |
3267 | bgp_unlock(bgp); /* TODO - This timer is started with a lock - | |
3268 | why? */ | |
718e3744 | 3269 | } |
3270 | ||
d62a17ae | 3271 | /* Bring down peers, so corresponding routes are purged. */ |
3272 | for (ALL_LIST_ELEMENTS(bgp->peer, node, next, peer)) { | |
3273 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
3274 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3275 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN); | |
3276 | else | |
3277 | bgp_session_reset(peer); | |
3278 | } | |
718e3744 | 3279 | |
d62a17ae | 3280 | /* Purge network and redistributed routes. */ |
3281 | bgp_purge_static_redist_routes(bgp); | |
ee7ca6c0 | 3282 | |
3283 | /* Cleanup registered nexthops (flags) */ | |
3284 | bgp_cleanup_nexthops(bgp); | |
718e3744 | 3285 | } |
3286 | ||
d62a17ae | 3287 | /* Delete BGP instance. */ |
3288 | int bgp_delete(struct bgp *bgp) | |
3289 | { | |
3290 | struct peer *peer; | |
3291 | struct peer_group *group; | |
3292 | struct listnode *node, *next; | |
3293 | struct vrf *vrf; | |
3294 | afi_t afi; | |
3295 | int i; | |
3296 | ||
bf383464 | 3297 | assert(bgp); |
d62a17ae | 3298 | THREAD_OFF(bgp->t_startup); |
3299 | ||
3300 | if (BGP_DEBUG(zebra, ZEBRA)) { | |
3301 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
3302 | zlog_debug("Deleting Default VRF"); | |
3303 | else | |
3304 | zlog_debug("Deleting %s %s", | |
3305 | (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) | |
3306 | ? "VRF" | |
3307 | : "VIEW", | |
3308 | bgp->name); | |
718e3744 | 3309 | } |
3310 | ||
10ebe1ab MK |
3311 | /* unmap from RT list */ |
3312 | bgp_evpn_vrf_delete(bgp); | |
3313 | ||
d62a17ae | 3314 | /* Stop timers. */ |
3315 | if (bgp->t_rmap_def_originate_eval) { | |
3316 | BGP_TIMER_OFF(bgp->t_rmap_def_originate_eval); | |
3317 | bgp_unlock(bgp); /* TODO - This timer is started with a lock - | |
3318 | why? */ | |
718e3744 | 3319 | } |
3320 | ||
d62a17ae | 3321 | /* Inform peers we're going down. */ |
3322 | for (ALL_LIST_ELEMENTS(bgp->peer, node, next, peer)) { | |
3323 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
3324 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3325 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN); | |
718e3744 | 3326 | } |
3327 | ||
d62a17ae | 3328 | /* Delete static routes (networks). */ |
3329 | bgp_static_delete(bgp); | |
6b0655a2 | 3330 | |
d62a17ae | 3331 | /* Unset redistribution. */ |
3332 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
3333 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
3334 | if (i != ZEBRA_ROUTE_BGP) | |
3335 | bgp_redistribute_unset(bgp, afi, i, 0); | |
718e3744 | 3336 | |
d62a17ae | 3337 | /* Free peers and peer-groups. */ |
3338 | for (ALL_LIST_ELEMENTS(bgp->group, node, next, group)) | |
3339 | peer_group_delete(group); | |
718e3744 | 3340 | |
d62a17ae | 3341 | for (ALL_LIST_ELEMENTS(bgp->peer, node, next, peer)) |
3342 | peer_delete(peer); | |
3343 | ||
3344 | if (bgp->peer_self) { | |
3345 | peer_delete(bgp->peer_self); | |
3346 | bgp->peer_self = NULL; | |
718e3744 | 3347 | } |
3348 | ||
d62a17ae | 3349 | update_bgp_group_free(bgp); |
718e3744 | 3350 | |
d62a17ae | 3351 | /* TODO - Other memory may need to be freed - e.g., NHT */ |
3352 | ||
3353 | #if ENABLE_BGP_VNC | |
3354 | rfapi_delete(bgp); | |
3355 | #endif | |
3356 | bgp_cleanup_routes(bgp); | |
718e3744 | 3357 | |
301ad80a PG |
3358 | for (afi = 0; afi < AFI_MAX; ++afi) { |
3359 | if (!bgp->vpn_policy[afi].import_redirect_rtlist) | |
3360 | continue; | |
3361 | ecommunity_free( | |
3362 | &bgp->vpn_policy[afi] | |
3363 | .import_redirect_rtlist); | |
3364 | bgp->vpn_policy[afi].import_redirect_rtlist = NULL; | |
3365 | } | |
d62a17ae | 3366 | /* Remove visibility via the master list - there may however still be |
3367 | * routes to be processed still referencing the struct bgp. | |
3368 | */ | |
3369 | listnode_delete(bm->bgp, bgp); | |
718e3744 | 3370 | |
d62a17ae | 3371 | /* Deregister from Zebra, if needed */ |
3372 | if (IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
3373 | bgp_zebra_instance_deregister(bgp); | |
718e3744 | 3374 | |
d62a17ae | 3375 | /* Free interfaces in this instance. */ |
3376 | bgp_if_finish(bgp); | |
718e3744 | 3377 | |
d62a17ae | 3378 | vrf = bgp_vrf_lookup_by_instance_type(bgp); |
e5619c28 | 3379 | bgp_handle_socket(bgp, vrf, VRF_UNKNOWN, false); |
d62a17ae | 3380 | if (vrf) |
3381 | bgp_vrf_unlink(bgp, vrf); | |
718e3744 | 3382 | |
d62a17ae | 3383 | thread_master_free_unused(bm->master); |
3384 | bgp_unlock(bgp); /* initial reference */ | |
718e3744 | 3385 | |
d62a17ae | 3386 | return 0; |
718e3744 | 3387 | } |
6b0655a2 | 3388 | |
92375c91 | 3389 | void bgp_free(struct bgp *bgp) |
d93f7ffc | 3390 | { |
d62a17ae | 3391 | afi_t afi; |
3392 | safi_t safi; | |
3393 | struct bgp_table *table; | |
3394 | struct bgp_node *rn; | |
f8265580 | 3395 | struct bgp_rmap *rmap; |
d93f7ffc | 3396 | |
d62a17ae | 3397 | QOBJ_UNREG(bgp); |
d93f7ffc | 3398 | |
affe9e99 DS |
3399 | list_delete_and_null(&bgp->group); |
3400 | list_delete_and_null(&bgp->peer); | |
966f821c | 3401 | |
d62a17ae | 3402 | if (bgp->peerhash) { |
3403 | hash_free(bgp->peerhash); | |
3404 | bgp->peerhash = NULL; | |
3405 | } | |
718e3744 | 3406 | |
05c7a1cc QY |
3407 | FOREACH_AFI_SAFI (afi, safi) { |
3408 | /* Special handling for 2-level routing tables. */ | |
3409 | if (safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP | |
3410 | || safi == SAFI_EVPN) { | |
3411 | for (rn = bgp_table_top(bgp->rib[afi][safi]); rn; | |
3412 | rn = bgp_route_next(rn)) { | |
3413 | table = (struct bgp_table *)rn->info; | |
3414 | bgp_table_finish(&table); | |
d62a17ae | 3415 | } |
d62a17ae | 3416 | } |
05c7a1cc QY |
3417 | if (bgp->route[afi][safi]) |
3418 | bgp_table_finish(&bgp->route[afi][safi]); | |
3419 | if (bgp->aggregate[afi][safi]) | |
3420 | bgp_table_finish(&bgp->aggregate[afi][safi]); | |
3421 | if (bgp->rib[afi][safi]) | |
3422 | bgp_table_finish(&bgp->rib[afi][safi]); | |
3423 | rmap = &bgp->table_map[afi][safi]; | |
3424 | if (rmap->name) | |
3425 | XFREE(MTYPE_ROUTE_MAP_NAME, rmap->name); | |
3426 | } | |
718e3744 | 3427 | |
d62a17ae | 3428 | bgp_scan_finish(bgp); |
3429 | bgp_address_destroy(bgp); | |
db0e1937 | 3430 | bgp_tip_hash_destroy(bgp); |
966f821c | 3431 | |
92708db6 | 3432 | /* release the auto RD id */ |
3433 | bf_release_index(bm->rd_idspace, bgp->vrf_rd_id); | |
3434 | ||
d62a17ae | 3435 | bgp_evpn_cleanup(bgp); |
a6b07429 | 3436 | bgp_pbr_cleanup(bgp); |
829e590b DS |
3437 | |
3438 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
3439 | vpn_policy_direction_t dir; | |
3440 | ||
3441 | if (bgp->vpn_policy[afi].import_vrf) | |
3442 | list_delete_and_null(&bgp->vpn_policy[afi].import_vrf); | |
3443 | if (bgp->vpn_policy[afi].export_vrf) | |
3444 | list_delete_and_null(&bgp->vpn_policy[afi].export_vrf); | |
3445 | ||
3446 | dir = BGP_VPN_POLICY_DIR_FROMVPN; | |
3447 | if (bgp->vpn_policy[afi].rtlist[dir]) | |
3448 | ecommunity_free(&bgp->vpn_policy[afi].rtlist[dir]); | |
3449 | dir = BGP_VPN_POLICY_DIR_TOVPN; | |
3450 | if (bgp->vpn_policy[afi].rtlist[dir]) | |
3451 | ecommunity_free(&bgp->vpn_policy[afi].rtlist[dir]); | |
3452 | } | |
3453 | ||
d62a17ae | 3454 | if (bgp->name) |
3455 | XFREE(MTYPE_BGP, bgp->name); | |
3572fb26 PZ |
3456 | if (bgp->name_pretty) |
3457 | XFREE(MTYPE_BGP, bgp->name_pretty); | |
966f821c | 3458 | |
d62a17ae | 3459 | XFREE(MTYPE_BGP, bgp); |
718e3744 | 3460 | } |
3461 | ||
d62a17ae | 3462 | struct peer *peer_lookup_by_conf_if(struct bgp *bgp, const char *conf_if) |
718e3744 | 3463 | { |
d62a17ae | 3464 | struct peer *peer; |
3465 | struct listnode *node, *nnode; | |
966f821c | 3466 | |
d62a17ae | 3467 | if (!conf_if) |
3468 | return NULL; | |
6b0655a2 | 3469 | |
d62a17ae | 3470 | if (bgp != NULL) { |
3471 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
3472 | if (peer->conf_if && !strcmp(peer->conf_if, conf_if) | |
3473 | && !CHECK_FLAG(peer->sflags, | |
3474 | PEER_STATUS_ACCEPT_PEER)) | |
3475 | return peer; | |
3476 | } else if (bm->bgp != NULL) { | |
3477 | struct listnode *bgpnode, *nbgpnode; | |
3478 | ||
3479 | for (ALL_LIST_ELEMENTS(bm->bgp, bgpnode, nbgpnode, bgp)) | |
3480 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
3481 | if (peer->conf_if | |
3482 | && !strcmp(peer->conf_if, conf_if) | |
3483 | && !CHECK_FLAG(peer->sflags, | |
3484 | PEER_STATUS_ACCEPT_PEER)) | |
3485 | return peer; | |
3486 | } | |
3487 | return NULL; | |
718e3744 | 3488 | } |
3489 | ||
d62a17ae | 3490 | struct peer *peer_lookup_by_hostname(struct bgp *bgp, const char *hostname) |
718e3744 | 3491 | { |
d62a17ae | 3492 | struct peer *peer; |
3493 | struct listnode *node, *nnode; | |
6b0655a2 | 3494 | |
d62a17ae | 3495 | if (!hostname) |
3496 | return NULL; | |
6b0655a2 | 3497 | |
d62a17ae | 3498 | if (bgp != NULL) { |
3499 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
3500 | if (peer->hostname && !strcmp(peer->hostname, hostname) | |
3501 | && !CHECK_FLAG(peer->sflags, | |
3502 | PEER_STATUS_ACCEPT_PEER)) | |
3503 | return peer; | |
3504 | } else if (bm->bgp != NULL) { | |
3505 | struct listnode *bgpnode, *nbgpnode; | |
3506 | ||
3507 | for (ALL_LIST_ELEMENTS(bm->bgp, bgpnode, nbgpnode, bgp)) | |
3508 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
3509 | if (peer->hostname | |
3510 | && !strcmp(peer->hostname, hostname) | |
3511 | && !CHECK_FLAG(peer->sflags, | |
3512 | PEER_STATUS_ACCEPT_PEER)) | |
3513 | return peer; | |
3514 | } | |
3515 | return NULL; | |
3516 | } | |
3517 | ||
3518 | struct peer *peer_lookup(struct bgp *bgp, union sockunion *su) | |
3519 | { | |
3520 | struct peer *peer = NULL; | |
3521 | struct peer tmp_peer; | |
3522 | ||
3523 | memset(&tmp_peer, 0, sizeof(struct peer)); | |
3524 | ||
3525 | /* | |
3526 | * We do not want to find the doppelganger peer so search for the peer | |
3527 | * in | |
3528 | * the hash that has PEER_FLAG_CONFIG_NODE | |
3529 | */ | |
3530 | SET_FLAG(tmp_peer.flags, PEER_FLAG_CONFIG_NODE); | |
3531 | ||
3532 | tmp_peer.su = *su; | |
3533 | ||
3534 | if (bgp != NULL) { | |
3535 | peer = hash_lookup(bgp->peerhash, &tmp_peer); | |
3536 | } else if (bm->bgp != NULL) { | |
3537 | struct listnode *bgpnode, *nbgpnode; | |
3538 | ||
3539 | for (ALL_LIST_ELEMENTS(bm->bgp, bgpnode, nbgpnode, bgp)) { | |
d62a17ae | 3540 | peer = hash_lookup(bgp->peerhash, &tmp_peer); |
d62a17ae | 3541 | if (peer) |
3542 | break; | |
3543 | } | |
3544 | } | |
3545 | ||
3546 | return peer; | |
3547 | } | |
3548 | ||
3549 | struct peer *peer_create_bind_dynamic_neighbor(struct bgp *bgp, | |
3550 | union sockunion *su, | |
3551 | struct peer_group *group) | |
3552 | { | |
3553 | struct peer *peer; | |
3554 | afi_t afi; | |
3555 | safi_t safi; | |
3556 | ||
3557 | /* Create peer first; we've already checked group config is valid. */ | |
3558 | peer = peer_create(su, NULL, bgp, bgp->as, group->conf->as, | |
3559 | group->conf->as_type, 0, 0, group); | |
3560 | if (!peer) | |
3561 | return NULL; | |
3562 | ||
3563 | /* Link to group */ | |
3564 | peer = peer_lock(peer); | |
3565 | listnode_add(group->peer, peer); | |
3566 | ||
3567 | peer_group2peer_config_copy(group, peer); | |
3568 | ||
3569 | /* | |
3570 | * Bind peer for all AFs configured for the group. We don't call | |
3571 | * peer_group_bind as that is sub-optimal and does some stuff we don't | |
3572 | * want. | |
3573 | */ | |
05c7a1cc QY |
3574 | FOREACH_AFI_SAFI (afi, safi) { |
3575 | if (!group->conf->afc[afi][safi]) | |
3576 | continue; | |
3577 | peer->afc[afi][safi] = 1; | |
d62a17ae | 3578 | |
05c7a1cc QY |
3579 | if (!peer_af_find(peer, afi, safi)) |
3580 | peer_af_create(peer, afi, safi); | |
d62a17ae | 3581 | |
05c7a1cc QY |
3582 | peer_group2peer_config_copy_af(group, peer, afi, safi); |
3583 | } | |
d62a17ae | 3584 | |
3585 | /* Mark as dynamic, but also as a "config node" for other things to | |
3586 | * work. */ | |
3587 | SET_FLAG(peer->flags, PEER_FLAG_DYNAMIC_NEIGHBOR); | |
3588 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); | |
3589 | ||
3590 | return peer; | |
3591 | } | |
3592 | ||
3593 | struct prefix * | |
3594 | peer_group_lookup_dynamic_neighbor_range(struct peer_group *group, | |
3595 | struct prefix *prefix) | |
3596 | { | |
3597 | struct listnode *node, *nnode; | |
3598 | struct prefix *range; | |
3599 | afi_t afi; | |
3600 | ||
3601 | afi = family2afi(prefix->family); | |
3602 | ||
3603 | if (group->listen_range[afi]) | |
3604 | for (ALL_LIST_ELEMENTS(group->listen_range[afi], node, nnode, | |
3605 | range)) | |
3606 | if (prefix_match(range, prefix)) | |
3607 | return range; | |
3608 | ||
3609 | return NULL; | |
3610 | } | |
3611 | ||
3612 | struct peer_group * | |
3613 | peer_group_lookup_dynamic_neighbor(struct bgp *bgp, struct prefix *prefix, | |
3614 | struct prefix **listen_range) | |
3615 | { | |
3616 | struct prefix *range = NULL; | |
3617 | struct peer_group *group = NULL; | |
3618 | struct listnode *node, *nnode; | |
3619 | ||
3620 | *listen_range = NULL; | |
3621 | if (bgp != NULL) { | |
3622 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) | |
3623 | if ((range = peer_group_lookup_dynamic_neighbor_range( | |
3624 | group, prefix))) | |
3625 | break; | |
3626 | } else if (bm->bgp != NULL) { | |
3627 | struct listnode *bgpnode, *nbgpnode; | |
3628 | ||
3629 | for (ALL_LIST_ELEMENTS(bm->bgp, bgpnode, nbgpnode, bgp)) | |
3630 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) | |
3631 | if ((range = peer_group_lookup_dynamic_neighbor_range( | |
3632 | group, prefix))) | |
3633 | goto found_range; | |
3634 | } | |
3635 | ||
3636 | found_range: | |
3637 | *listen_range = range; | |
3638 | return (group && range) ? group : NULL; | |
3639 | } | |
3640 | ||
3641 | struct peer *peer_lookup_dynamic_neighbor(struct bgp *bgp, union sockunion *su) | |
3642 | { | |
3643 | struct peer_group *group; | |
3644 | struct bgp *gbgp; | |
3645 | struct peer *peer; | |
3646 | struct prefix prefix; | |
3647 | struct prefix *listen_range; | |
3648 | int dncount; | |
3649 | char buf[PREFIX2STR_BUFFER]; | |
3650 | char buf1[PREFIX2STR_BUFFER]; | |
3651 | ||
3652 | sockunion2hostprefix(su, &prefix); | |
3653 | ||
3654 | /* See if incoming connection matches a configured listen range. */ | |
3655 | group = peer_group_lookup_dynamic_neighbor(bgp, &prefix, &listen_range); | |
3656 | ||
3657 | if (!group) | |
3658 | return NULL; | |
3659 | ||
3660 | ||
3661 | gbgp = group->bgp; | |
3662 | ||
3663 | if (!gbgp) | |
3664 | return NULL; | |
3665 | ||
3666 | prefix2str(&prefix, buf, sizeof(buf)); | |
3667 | prefix2str(listen_range, buf1, sizeof(buf1)); | |
3668 | ||
3669 | if (bgp_debug_neighbor_events(NULL)) | |
3670 | zlog_debug( | |
3671 | "Dynamic Neighbor %s matches group %s listen range %s", | |
3672 | buf, group->name, buf1); | |
3673 | ||
3674 | /* Are we within the listen limit? */ | |
3675 | dncount = gbgp->dynamic_neighbors_count; | |
3676 | ||
3677 | if (dncount >= gbgp->dynamic_neighbors_limit) { | |
3678 | if (bgp_debug_neighbor_events(NULL)) | |
3679 | zlog_debug("Dynamic Neighbor %s rejected - at limit %d", | |
3680 | inet_sutop(su, buf), | |
3681 | gbgp->dynamic_neighbors_limit); | |
3682 | return NULL; | |
3683 | } | |
3684 | ||
3685 | /* Ensure group is not disabled. */ | |
3686 | if (CHECK_FLAG(group->conf->flags, PEER_FLAG_SHUTDOWN)) { | |
3687 | if (bgp_debug_neighbor_events(NULL)) | |
3688 | zlog_debug( | |
3689 | "Dynamic Neighbor %s rejected - group %s disabled", | |
3690 | buf, group->name); | |
3691 | return NULL; | |
3692 | } | |
3693 | ||
3694 | /* Check that at least one AF is activated for the group. */ | |
3695 | if (!peer_group_af_configured(group)) { | |
3696 | if (bgp_debug_neighbor_events(NULL)) | |
3697 | zlog_debug( | |
3698 | "Dynamic Neighbor %s rejected - no AF activated for group %s", | |
3699 | buf, group->name); | |
3700 | return NULL; | |
3701 | } | |
3702 | ||
3703 | /* Create dynamic peer and bind to associated group. */ | |
3704 | peer = peer_create_bind_dynamic_neighbor(gbgp, su, group); | |
3705 | assert(peer); | |
3706 | ||
3707 | gbgp->dynamic_neighbors_count = ++dncount; | |
3708 | ||
3709 | if (bgp_debug_neighbor_events(peer)) | |
3710 | zlog_debug("%s Dynamic Neighbor added, group %s count %d", | |
3711 | peer->host, group->name, dncount); | |
3712 | ||
3713 | return peer; | |
3714 | } | |
3715 | ||
cc32742c | 3716 | static void peer_drop_dynamic_neighbor(struct peer *peer) |
d62a17ae | 3717 | { |
3718 | int dncount = -1; | |
cc32742c | 3719 | if (peer->group->bgp) { |
d62a17ae | 3720 | dncount = peer->group->bgp->dynamic_neighbors_count; |
3721 | if (dncount) | |
3722 | peer->group->bgp->dynamic_neighbors_count = --dncount; | |
3723 | } | |
3724 | if (bgp_debug_neighbor_events(peer)) | |
3725 | zlog_debug("%s dropped from group %s, count %d", peer->host, | |
3726 | peer->group->name, dncount); | |
3727 | } | |
3728 | ||
d62a17ae | 3729 | /* If peer is configured at least one address family return 1. */ |
3730 | int peer_active(struct peer *peer) | |
3731 | { | |
3732 | if (BGP_PEER_SU_UNSPEC(peer)) | |
3733 | return 0; | |
3734 | if (peer->afc[AFI_IP][SAFI_UNICAST] || peer->afc[AFI_IP][SAFI_MULTICAST] | |
3735 | || peer->afc[AFI_IP][SAFI_LABELED_UNICAST] | |
3736 | || peer->afc[AFI_IP][SAFI_MPLS_VPN] || peer->afc[AFI_IP][SAFI_ENCAP] | |
7c40bf39 | 3737 | || peer->afc[AFI_IP][SAFI_FLOWSPEC] |
d62a17ae | 3738 | || peer->afc[AFI_IP6][SAFI_UNICAST] |
3739 | || peer->afc[AFI_IP6][SAFI_MULTICAST] | |
3740 | || peer->afc[AFI_IP6][SAFI_LABELED_UNICAST] | |
3741 | || peer->afc[AFI_IP6][SAFI_MPLS_VPN] | |
3742 | || peer->afc[AFI_IP6][SAFI_ENCAP] | |
7c40bf39 | 3743 | || peer->afc[AFI_IP6][SAFI_FLOWSPEC] |
d62a17ae | 3744 | || peer->afc[AFI_L2VPN][SAFI_EVPN]) |
3745 | return 1; | |
3746 | return 0; | |
3747 | } | |
3748 | ||
3749 | /* If peer is negotiated at least one address family return 1. */ | |
3750 | int peer_active_nego(struct peer *peer) | |
3751 | { | |
3752 | if (peer->afc_nego[AFI_IP][SAFI_UNICAST] | |
3753 | || peer->afc_nego[AFI_IP][SAFI_MULTICAST] | |
3754 | || peer->afc_nego[AFI_IP][SAFI_LABELED_UNICAST] | |
3755 | || peer->afc_nego[AFI_IP][SAFI_MPLS_VPN] | |
3756 | || peer->afc_nego[AFI_IP][SAFI_ENCAP] | |
7c40bf39 | 3757 | || peer->afc_nego[AFI_IP][SAFI_FLOWSPEC] |
d62a17ae | 3758 | || peer->afc_nego[AFI_IP6][SAFI_UNICAST] |
3759 | || peer->afc_nego[AFI_IP6][SAFI_MULTICAST] | |
3760 | || peer->afc_nego[AFI_IP6][SAFI_LABELED_UNICAST] | |
3761 | || peer->afc_nego[AFI_IP6][SAFI_MPLS_VPN] | |
3762 | || peer->afc_nego[AFI_IP6][SAFI_ENCAP] | |
7c40bf39 | 3763 | || peer->afc_nego[AFI_IP6][SAFI_FLOWSPEC] |
d62a17ae | 3764 | || peer->afc_nego[AFI_L2VPN][SAFI_EVPN]) |
3765 | return 1; | |
3766 | return 0; | |
3767 | } | |
3768 | ||
3769 | /* peer_flag_change_type. */ | |
3770 | enum peer_change_type { | |
3771 | peer_change_none, | |
3772 | peer_change_reset, | |
3773 | peer_change_reset_in, | |
3774 | peer_change_reset_out, | |
3775 | }; | |
3776 | ||
3777 | static void peer_change_action(struct peer *peer, afi_t afi, safi_t safi, | |
3778 | enum peer_change_type type) | |
3779 | { | |
3780 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
3781 | return; | |
3782 | ||
3783 | if (peer->status != Established) | |
3784 | return; | |
3785 | ||
3786 | if (type == peer_change_reset) { | |
3787 | /* If we're resetting session, we've to delete both peer struct | |
3788 | */ | |
3789 | if ((peer->doppelganger) | |
3790 | && (peer->doppelganger->status != Deleted) | |
3791 | && (!CHECK_FLAG(peer->doppelganger->flags, | |
3792 | PEER_FLAG_CONFIG_NODE))) | |
3793 | peer_delete(peer->doppelganger); | |
3794 | ||
3795 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3796 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
3797 | } else if (type == peer_change_reset_in) { | |
3798 | if (CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_OLD_RCV) | |
3799 | || CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_NEW_RCV)) | |
3800 | bgp_route_refresh_send(peer, afi, safi, 0, 0, 0); | |
3801 | else { | |
3802 | if ((peer->doppelganger) | |
3803 | && (peer->doppelganger->status != Deleted) | |
3804 | && (!CHECK_FLAG(peer->doppelganger->flags, | |
3805 | PEER_FLAG_CONFIG_NODE))) | |
3806 | peer_delete(peer->doppelganger); | |
3807 | ||
3808 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3809 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
3810 | } | |
3811 | } else if (type == peer_change_reset_out) { | |
3812 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
3813 | bgp_announce_route(peer, afi, safi); | |
3814 | } | |
3815 | } | |
3816 | ||
3817 | struct peer_flag_action { | |
3818 | /* Peer's flag. */ | |
d7c0a89a | 3819 | uint32_t flag; |
d62a17ae | 3820 | |
3821 | /* This flag can be set for peer-group member. */ | |
d7c0a89a | 3822 | uint8_t not_for_member; |
d62a17ae | 3823 | |
3824 | /* Action when the flag is changed. */ | |
3825 | enum peer_change_type type; | |
3826 | ||
3827 | /* Peer down cause */ | |
d7c0a89a | 3828 | uint8_t peer_down; |
d62a17ae | 3829 | }; |
3830 | ||
3831 | static const struct peer_flag_action peer_flag_action_list[] = { | |
3832 | {PEER_FLAG_PASSIVE, 0, peer_change_reset}, | |
3833 | {PEER_FLAG_SHUTDOWN, 0, peer_change_reset}, | |
3834 | {PEER_FLAG_DONT_CAPABILITY, 0, peer_change_none}, | |
3835 | {PEER_FLAG_OVERRIDE_CAPABILITY, 0, peer_change_none}, | |
3836 | {PEER_FLAG_STRICT_CAP_MATCH, 0, peer_change_none}, | |
3837 | {PEER_FLAG_DYNAMIC_CAPABILITY, 0, peer_change_reset}, | |
3838 | {PEER_FLAG_DISABLE_CONNECTED_CHECK, 0, peer_change_reset}, | |
3839 | {PEER_FLAG_CAPABILITY_ENHE, 0, peer_change_reset}, | |
47cbc09b | 3840 | {PEER_FLAG_ENFORCE_FIRST_AS, 0, peer_change_reset_in}, |
b90a8e13 PM |
3841 | {PEER_FLAG_ROUTEADV, 0, peer_change_none}, |
3842 | {PEER_FLAG_TIMER, 0, peer_change_none}, | |
3843 | {PEER_FLAG_TIMER_CONNECT, 0, peer_change_none}, | |
d62a17ae | 3844 | {0, 0, 0}}; |
3845 | ||
3846 | static const struct peer_flag_action peer_af_flag_action_list[] = { | |
3847 | {PEER_FLAG_SEND_COMMUNITY, 1, peer_change_reset_out}, | |
3848 | {PEER_FLAG_SEND_EXT_COMMUNITY, 1, peer_change_reset_out}, | |
3849 | {PEER_FLAG_SEND_LARGE_COMMUNITY, 1, peer_change_reset_out}, | |
3850 | {PEER_FLAG_NEXTHOP_SELF, 1, peer_change_reset_out}, | |
3851 | {PEER_FLAG_REFLECTOR_CLIENT, 1, peer_change_reset}, | |
3852 | {PEER_FLAG_RSERVER_CLIENT, 1, peer_change_reset}, | |
3853 | {PEER_FLAG_SOFT_RECONFIG, 0, peer_change_reset_in}, | |
3854 | {PEER_FLAG_AS_PATH_UNCHANGED, 1, peer_change_reset_out}, | |
3855 | {PEER_FLAG_NEXTHOP_UNCHANGED, 1, peer_change_reset_out}, | |
3856 | {PEER_FLAG_MED_UNCHANGED, 1, peer_change_reset_out}, | |
598ce6bd | 3857 | {PEER_FLAG_DEFAULT_ORIGINATE, 0, peer_change_none}, |
d62a17ae | 3858 | {PEER_FLAG_REMOVE_PRIVATE_AS, 1, peer_change_reset_out}, |
3859 | {PEER_FLAG_ALLOWAS_IN, 0, peer_change_reset_in}, | |
3860 | {PEER_FLAG_ALLOWAS_IN_ORIGIN, 0, peer_change_reset_in}, | |
3861 | {PEER_FLAG_ORF_PREFIX_SM, 1, peer_change_reset}, | |
3862 | {PEER_FLAG_ORF_PREFIX_RM, 1, peer_change_reset}, | |
598ce6bd PM |
3863 | {PEER_FLAG_MAX_PREFIX, 0, peer_change_none}, |
3864 | {PEER_FLAG_MAX_PREFIX_WARNING, 0, peer_change_none}, | |
d62a17ae | 3865 | {PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED, 0, peer_change_reset_out}, |
3866 | {PEER_FLAG_FORCE_NEXTHOP_SELF, 1, peer_change_reset_out}, | |
3867 | {PEER_FLAG_REMOVE_PRIVATE_AS_ALL, 1, peer_change_reset_out}, | |
3868 | {PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE, 1, peer_change_reset_out}, | |
3869 | {PEER_FLAG_AS_OVERRIDE, 1, peer_change_reset_out}, | |
3870 | {PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE, 1, peer_change_reset_out}, | |
3871 | {PEER_FLAG_ADDPATH_TX_ALL_PATHS, 1, peer_change_reset}, | |
3872 | {PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS, 1, peer_change_reset}, | |
3873 | {PEER_FLAG_WEIGHT, 0, peer_change_reset_in}, | |
3874 | {0, 0, 0}}; | |
3875 | ||
3876 | /* Proper action set. */ | |
3877 | static int peer_flag_action_set(const struct peer_flag_action *action_list, | |
3878 | int size, struct peer_flag_action *action, | |
d7c0a89a | 3879 | uint32_t flag) |
d62a17ae | 3880 | { |
3881 | int i; | |
3882 | int found = 0; | |
3883 | int reset_in = 0; | |
3884 | int reset_out = 0; | |
3885 | const struct peer_flag_action *match = NULL; | |
3886 | ||
3887 | /* Check peer's frag action. */ | |
3888 | for (i = 0; i < size; i++) { | |
3889 | match = &action_list[i]; | |
3890 | ||
3891 | if (match->flag == 0) | |
3892 | break; | |
3893 | ||
3894 | if (match->flag & flag) { | |
3895 | found = 1; | |
3896 | ||
3897 | if (match->type == peer_change_reset_in) | |
3898 | reset_in = 1; | |
3899 | if (match->type == peer_change_reset_out) | |
3900 | reset_out = 1; | |
3901 | if (match->type == peer_change_reset) { | |
3902 | reset_in = 1; | |
3903 | reset_out = 1; | |
3904 | } | |
3905 | if (match->not_for_member) | |
3906 | action->not_for_member = 1; | |
3907 | } | |
3908 | } | |
3909 | ||
3910 | /* Set peer clear type. */ | |
3911 | if (reset_in && reset_out) | |
3912 | action->type = peer_change_reset; | |
3913 | else if (reset_in) | |
3914 | action->type = peer_change_reset_in; | |
3915 | else if (reset_out) | |
3916 | action->type = peer_change_reset_out; | |
3917 | else | |
3918 | action->type = peer_change_none; | |
3919 | ||
3920 | return found; | |
3921 | } | |
3922 | ||
d7c0a89a | 3923 | static void peer_flag_modify_action(struct peer *peer, uint32_t flag) |
d62a17ae | 3924 | { |
3925 | if (flag == PEER_FLAG_SHUTDOWN) { | |
3926 | if (CHECK_FLAG(peer->flags, flag)) { | |
3927 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT)) | |
3928 | peer_nsf_stop(peer); | |
3929 | ||
3930 | UNSET_FLAG(peer->sflags, PEER_STATUS_PREFIX_OVERFLOW); | |
3931 | if (peer->t_pmax_restart) { | |
3932 | BGP_TIMER_OFF(peer->t_pmax_restart); | |
3933 | if (bgp_debug_neighbor_events(peer)) | |
3934 | zlog_debug( | |
3935 | "%s Maximum-prefix restart timer canceled", | |
3936 | peer->host); | |
3937 | } | |
3938 | ||
3939 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT)) | |
3940 | peer_nsf_stop(peer); | |
3941 | ||
3942 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
3943 | char *msg = peer->tx_shutdown_message; | |
3944 | size_t msglen; | |
3945 | ||
3946 | if (!msg && peer_group_active(peer)) | |
3947 | msg = peer->group->conf | |
3948 | ->tx_shutdown_message; | |
3949 | msglen = msg ? strlen(msg) : 0; | |
3950 | if (msglen > 128) | |
3951 | msglen = 128; | |
3952 | ||
3953 | if (msglen) { | |
d7c0a89a | 3954 | uint8_t msgbuf[129]; |
d62a17ae | 3955 | |
3956 | msgbuf[0] = msglen; | |
3957 | memcpy(msgbuf + 1, msg, msglen); | |
3958 | ||
3959 | bgp_notify_send_with_data( | |
3960 | peer, BGP_NOTIFY_CEASE, | |
3961 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN, | |
3962 | msgbuf, msglen + 1); | |
3963 | } else | |
3964 | bgp_notify_send( | |
3965 | peer, BGP_NOTIFY_CEASE, | |
3966 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN); | |
3967 | } else | |
3968 | bgp_session_reset(peer); | |
3969 | } else { | |
3970 | peer->v_start = BGP_INIT_START_TIMER; | |
3971 | BGP_EVENT_ADD(peer, BGP_Stop); | |
3972 | } | |
3973 | } else if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
3974 | if (flag == PEER_FLAG_DYNAMIC_CAPABILITY) | |
3975 | peer->last_reset = PEER_DOWN_CAPABILITY_CHANGE; | |
3976 | else if (flag == PEER_FLAG_PASSIVE) | |
3977 | peer->last_reset = PEER_DOWN_PASSIVE_CHANGE; | |
3978 | else if (flag == PEER_FLAG_DISABLE_CONNECTED_CHECK) | |
3979 | peer->last_reset = PEER_DOWN_MULTIHOP_CHANGE; | |
3980 | ||
3981 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3982 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
3983 | } else | |
3984 | bgp_session_reset(peer); | |
3985 | } | |
3986 | ||
3987 | /* Change specified peer flag. */ | |
d7c0a89a | 3988 | static int peer_flag_modify(struct peer *peer, uint32_t flag, int set) |
d62a17ae | 3989 | { |
3990 | int found; | |
3991 | int size; | |
9fb964de PM |
3992 | bool invert, member_invert; |
3993 | struct peer *member; | |
d62a17ae | 3994 | struct listnode *node, *nnode; |
3995 | struct peer_flag_action action; | |
3996 | ||
3997 | memset(&action, 0, sizeof(struct peer_flag_action)); | |
3998 | size = sizeof peer_flag_action_list / sizeof(struct peer_flag_action); | |
3999 | ||
9fb964de | 4000 | invert = CHECK_FLAG(peer->flags_invert, flag); |
d62a17ae | 4001 | found = peer_flag_action_set(peer_flag_action_list, size, &action, |
4002 | flag); | |
4003 | ||
9fb964de | 4004 | /* Abort if no flag action exists. */ |
d62a17ae | 4005 | if (!found) |
4006 | return BGP_ERR_INVALID_FLAG; | |
4007 | ||
9fb964de | 4008 | /* Check for flag conflict: STRICT_CAP_MATCH && OVERRIDE_CAPABILITY */ |
d62a17ae | 4009 | if (set && CHECK_FLAG(peer->flags | flag, PEER_FLAG_STRICT_CAP_MATCH) |
4010 | && CHECK_FLAG(peer->flags | flag, PEER_FLAG_OVERRIDE_CAPABILITY)) | |
4011 | return BGP_ERR_PEER_FLAG_CONFLICT; | |
4012 | ||
9fb964de | 4013 | /* Handle flag updates where desired state matches current state. */ |
d62a17ae | 4014 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
9fb964de PM |
4015 | if (set && CHECK_FLAG(peer->flags, flag)) { |
4016 | COND_FLAG(peer->flags_override, flag, !invert); | |
d62a17ae | 4017 | return 0; |
9fb964de PM |
4018 | } |
4019 | ||
4020 | if (!set && !CHECK_FLAG(peer->flags, flag)) { | |
4021 | COND_FLAG(peer->flags_override, flag, invert); | |
d62a17ae | 4022 | return 0; |
9fb964de | 4023 | } |
d62a17ae | 4024 | } |
4025 | ||
9fb964de PM |
4026 | /* Inherit from peer-group or set/unset flags accordingly. */ |
4027 | if (peer_group_active(peer) && set == invert) | |
4028 | peer_flag_inherit(peer, flag); | |
d62a17ae | 4029 | else |
9fb964de | 4030 | COND_FLAG(peer->flags, flag, set); |
d62a17ae | 4031 | |
9fb964de | 4032 | /* Check if handling a regular peer. */ |
d62a17ae | 4033 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
9fb964de PM |
4034 | /* Update flag override state accordingly. */ |
4035 | COND_FLAG(peer->flags_override, flag, set != invert); | |
4036 | ||
4037 | /* Execute flag action on peer. */ | |
d62a17ae | 4038 | if (action.type == peer_change_reset) |
4039 | peer_flag_modify_action(peer, flag); | |
4040 | ||
9fb964de | 4041 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 4042 | return 0; |
4043 | } | |
4044 | ||
9fb964de PM |
4045 | /* |
4046 | * Update peer-group members, unless they are explicitely overriding | |
4047 | * peer-group configuration. | |
4048 | */ | |
4049 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4050 | /* Skip peers with overridden configuration. */ | |
4051 | if (CHECK_FLAG(member->flags_override, flag)) | |
4052 | continue; | |
d62a17ae | 4053 | |
527de3dc PM |
4054 | /* Check if only member without group is inverted. */ |
4055 | member_invert = | |
4056 | CHECK_FLAG(member->flags_invert, flag) && !invert; | |
d62a17ae | 4057 | |
9fb964de PM |
4058 | /* Skip peers with equivalent configuration. */ |
4059 | if (set != member_invert && CHECK_FLAG(member->flags, flag)) | |
d62a17ae | 4060 | continue; |
4061 | ||
9fb964de | 4062 | if (set == member_invert && !CHECK_FLAG(member->flags, flag)) |
d62a17ae | 4063 | continue; |
4064 | ||
9fb964de PM |
4065 | /* Update flag on peer-group member. */ |
4066 | COND_FLAG(member->flags, flag, set != member_invert); | |
d62a17ae | 4067 | |
9fb964de | 4068 | /* Execute flag action on peer-group member. */ |
d62a17ae | 4069 | if (action.type == peer_change_reset) |
9fb964de | 4070 | peer_flag_modify_action(member, flag); |
d62a17ae | 4071 | } |
9fb964de | 4072 | |
d62a17ae | 4073 | return 0; |
4074 | } | |
4075 | ||
d7c0a89a | 4076 | int peer_flag_set(struct peer *peer, uint32_t flag) |
d62a17ae | 4077 | { |
4078 | return peer_flag_modify(peer, flag, 1); | |
4079 | } | |
4080 | ||
d7c0a89a | 4081 | int peer_flag_unset(struct peer *peer, uint32_t flag) |
d62a17ae | 4082 | { |
4083 | return peer_flag_modify(peer, flag, 0); | |
4084 | } | |
4085 | ||
4086 | static int peer_af_flag_modify(struct peer *peer, afi_t afi, safi_t safi, | |
27c05d4d | 4087 | uint32_t flag, bool set) |
d62a17ae | 4088 | { |
4089 | int found; | |
4090 | int size; | |
27c05d4d | 4091 | int addpath_tx_used; |
527de3dc PM |
4092 | bool invert, member_invert; |
4093 | struct bgp *bgp; | |
4094 | struct peer *member; | |
d62a17ae | 4095 | struct listnode *node, *nnode; |
d62a17ae | 4096 | struct peer_flag_action action; |
d62a17ae | 4097 | |
4098 | memset(&action, 0, sizeof(struct peer_flag_action)); | |
4099 | size = sizeof peer_af_flag_action_list | |
4100 | / sizeof(struct peer_flag_action); | |
4101 | ||
27c05d4d | 4102 | invert = CHECK_FLAG(peer->af_flags_invert[afi][safi], flag); |
d62a17ae | 4103 | found = peer_flag_action_set(peer_af_flag_action_list, size, &action, |
4104 | flag); | |
4105 | ||
527de3dc | 4106 | /* Abort if flag action exists. */ |
d62a17ae | 4107 | if (!found) |
4108 | return BGP_ERR_INVALID_FLAG; | |
4109 | ||
4110 | /* Special check for reflector client. */ | |
4111 | if (flag & PEER_FLAG_REFLECTOR_CLIENT | |
4112 | && peer_sort(peer) != BGP_PEER_IBGP) | |
4113 | return BGP_ERR_NOT_INTERNAL_PEER; | |
4114 | ||
4115 | /* Special check for remove-private-AS. */ | |
4116 | if (flag & PEER_FLAG_REMOVE_PRIVATE_AS | |
4117 | && peer_sort(peer) == BGP_PEER_IBGP) | |
4118 | return BGP_ERR_REMOVE_PRIVATE_AS; | |
4119 | ||
4120 | /* as-override is not allowed for IBGP peers */ | |
4121 | if (flag & PEER_FLAG_AS_OVERRIDE && peer_sort(peer) == BGP_PEER_IBGP) | |
4122 | return BGP_ERR_AS_OVERRIDE; | |
4123 | ||
527de3dc | 4124 | /* Handle flag updates where desired state matches current state. */ |
d62a17ae | 4125 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
598ce6bd | 4126 | if (set && CHECK_FLAG(peer->af_flags[afi][safi], flag)) { |
527de3dc PM |
4127 | COND_FLAG(peer->af_flags_override[afi][safi], flag, |
4128 | !invert); | |
d62a17ae | 4129 | return 0; |
598ce6bd PM |
4130 | } |
4131 | ||
4132 | if (!set && !CHECK_FLAG(peer->af_flags[afi][safi], flag)) { | |
527de3dc PM |
4133 | COND_FLAG(peer->af_flags_override[afi][safi], flag, |
4134 | invert); | |
d62a17ae | 4135 | return 0; |
598ce6bd | 4136 | } |
d62a17ae | 4137 | } |
4138 | ||
ace295a9 MK |
4139 | /* |
4140 | * For EVPN we implicitly set the NEXTHOP_UNCHANGED flag, | |
4141 | * if we are setting/unsetting flags which conflict with this flag | |
4142 | * handle accordingly | |
4143 | */ | |
4144 | if (afi == AFI_L2VPN && safi == SAFI_EVPN) { | |
4145 | if (set) { | |
4146 | ||
3518f352 DS |
4147 | /* |
4148 | * if we are setting NEXTHOP_SELF, we need to unset the | |
4149 | * NEXTHOP_UNCHANGED flag | |
4150 | */ | |
ace295a9 MK |
4151 | if (CHECK_FLAG(flag, PEER_FLAG_NEXTHOP_SELF) || |
4152 | CHECK_FLAG(flag, PEER_FLAG_FORCE_NEXTHOP_SELF)) | |
4153 | UNSET_FLAG(peer->af_flags[afi][safi], | |
4154 | PEER_FLAG_NEXTHOP_UNCHANGED); | |
4155 | } else { | |
4156 | ||
3518f352 DS |
4157 | /* |
4158 | * if we are unsetting NEXTHOP_SELF, we need to set the | |
ace295a9 MK |
4159 | * NEXTHOP_UNCHANGED flag to reset the defaults for EVPN |
4160 | */ | |
4161 | if (CHECK_FLAG(flag, PEER_FLAG_NEXTHOP_SELF) || | |
4162 | CHECK_FLAG(flag, PEER_FLAG_FORCE_NEXTHOP_SELF)) | |
4163 | SET_FLAG(peer->af_flags[afi][safi], | |
4164 | PEER_FLAG_NEXTHOP_UNCHANGED); | |
4165 | } | |
4166 | } | |
4167 | ||
527de3dc PM |
4168 | /* Inherit from peer-group or set/unset flags accordingly. */ |
4169 | if (peer_group_active(peer) && set == invert) | |
4170 | peer_af_flag_inherit(peer, afi, safi, flag); | |
4171 | else | |
4172 | COND_FLAG(peer->af_flags[afi][safi], flag, set); | |
d62a17ae | 4173 | |
4174 | /* Execute action when peer is established. */ | |
4175 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP) | |
4176 | && peer->status == Established) { | |
4177 | if (!set && flag == PEER_FLAG_SOFT_RECONFIG) | |
4178 | bgp_clear_adj_in(peer, afi, safi); | |
4179 | else { | |
4180 | if (flag == PEER_FLAG_REFLECTOR_CLIENT) | |
4181 | peer->last_reset = PEER_DOWN_RR_CLIENT_CHANGE; | |
4182 | else if (flag == PEER_FLAG_RSERVER_CLIENT) | |
4183 | peer->last_reset = PEER_DOWN_RS_CLIENT_CHANGE; | |
4184 | else if (flag == PEER_FLAG_ORF_PREFIX_SM) | |
4185 | peer->last_reset = PEER_DOWN_CAPABILITY_CHANGE; | |
4186 | else if (flag == PEER_FLAG_ORF_PREFIX_RM) | |
4187 | peer->last_reset = PEER_DOWN_CAPABILITY_CHANGE; | |
4188 | ||
4189 | peer_change_action(peer, afi, safi, action.type); | |
4190 | } | |
4191 | } | |
4192 | ||
527de3dc PM |
4193 | /* Check if handling a regular peer. */ |
4194 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4195 | COND_FLAG(peer->af_flags_override[afi][safi], flag, | |
4196 | set != invert); | |
4197 | } else { | |
4198 | /* | |
4199 | * Update peer-group members, unless they are explicitely | |
4200 | * overriding peer-group configuration. | |
4201 | */ | |
4202 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, | |
4203 | member)) { | |
4204 | /* Skip peers with overridden configuration. */ | |
4205 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
598ce6bd PM |
4206 | flag)) |
4207 | continue; | |
4208 | ||
527de3dc PM |
4209 | /* Check if only member without group is inverted. */ |
4210 | member_invert = | |
4211 | CHECK_FLAG(member->af_flags_invert[afi][safi], | |
4212 | flag) | |
4213 | && !invert; | |
4214 | ||
4215 | /* Skip peers with equivalent configuration. */ | |
4216 | if (set != member_invert | |
4217 | && CHECK_FLAG(member->af_flags[afi][safi], flag)) | |
d62a17ae | 4218 | continue; |
4219 | ||
527de3dc PM |
4220 | if (set == member_invert |
4221 | && !CHECK_FLAG(member->af_flags[afi][safi], flag)) | |
d62a17ae | 4222 | continue; |
4223 | ||
527de3dc PM |
4224 | /* Update flag on peer-group member. */ |
4225 | COND_FLAG(member->af_flags[afi][safi], flag, | |
4226 | set != member_invert); | |
d62a17ae | 4227 | |
527de3dc PM |
4228 | /* Execute flag action on peer-group member. */ |
4229 | if (member->status == Established) { | |
d62a17ae | 4230 | if (!set && flag == PEER_FLAG_SOFT_RECONFIG) |
527de3dc | 4231 | bgp_clear_adj_in(member, afi, safi); |
d62a17ae | 4232 | else { |
4233 | if (flag == PEER_FLAG_REFLECTOR_CLIENT) | |
527de3dc | 4234 | member->last_reset = |
d62a17ae | 4235 | PEER_DOWN_RR_CLIENT_CHANGE; |
4236 | else if (flag | |
4237 | == PEER_FLAG_RSERVER_CLIENT) | |
527de3dc | 4238 | member->last_reset = |
d62a17ae | 4239 | PEER_DOWN_RS_CLIENT_CHANGE; |
4240 | else if (flag | |
4241 | == PEER_FLAG_ORF_PREFIX_SM) | |
527de3dc | 4242 | member->last_reset = |
d62a17ae | 4243 | PEER_DOWN_CAPABILITY_CHANGE; |
4244 | else if (flag | |
4245 | == PEER_FLAG_ORF_PREFIX_RM) | |
527de3dc | 4246 | member->last_reset = |
d62a17ae | 4247 | PEER_DOWN_CAPABILITY_CHANGE; |
4248 | ||
527de3dc | 4249 | peer_change_action(member, afi, safi, |
d62a17ae | 4250 | action.type); |
4251 | } | |
4252 | } | |
4253 | } | |
4254 | } | |
4255 | ||
4256 | /* Track if addpath TX is in use */ | |
996c9314 LB |
4257 | if (flag & (PEER_FLAG_ADDPATH_TX_ALL_PATHS |
4258 | | PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS)) { | |
d62a17ae | 4259 | bgp = peer->bgp; |
4260 | addpath_tx_used = 0; | |
4261 | ||
4262 | if (set) { | |
4263 | addpath_tx_used = 1; | |
4264 | ||
4265 | if (flag & PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS) { | |
4266 | if (!bgp_flag_check( | |
4267 | bgp, BGP_FLAG_DETERMINISTIC_MED)) { | |
4268 | zlog_warn( | |
4269 | "%s: enabling bgp deterministic-med, this is required" | |
4270 | " for addpath-tx-bestpath-per-AS", | |
4271 | peer->host); | |
4272 | bgp_flag_set( | |
4273 | bgp, | |
4274 | BGP_FLAG_DETERMINISTIC_MED); | |
4275 | bgp_recalculate_all_bestpaths(bgp); | |
4276 | } | |
4277 | } | |
4278 | } else { | |
4279 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, | |
527de3dc PM |
4280 | member)) { |
4281 | if (CHECK_FLAG(member->af_flags[afi][safi], | |
d62a17ae | 4282 | PEER_FLAG_ADDPATH_TX_ALL_PATHS) |
4283 | || CHECK_FLAG( | |
527de3dc | 4284 | member->af_flags[afi][safi], |
d62a17ae | 4285 | PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS)) { |
4286 | addpath_tx_used = 1; | |
4287 | break; | |
4288 | } | |
4289 | } | |
4290 | } | |
4291 | ||
4292 | bgp->addpath_tx_used[afi][safi] = addpath_tx_used; | |
4293 | } | |
4294 | ||
4295 | return 0; | |
4296 | } | |
4297 | ||
d7c0a89a | 4298 | int peer_af_flag_set(struct peer *peer, afi_t afi, safi_t safi, uint32_t flag) |
d62a17ae | 4299 | { |
4300 | return peer_af_flag_modify(peer, afi, safi, flag, 1); | |
4301 | } | |
4302 | ||
d7c0a89a | 4303 | int peer_af_flag_unset(struct peer *peer, afi_t afi, safi_t safi, uint32_t flag) |
d62a17ae | 4304 | { |
4305 | return peer_af_flag_modify(peer, afi, safi, flag, 0); | |
4306 | } | |
4307 | ||
4308 | ||
4309 | int peer_tx_shutdown_message_set(struct peer *peer, const char *msg) | |
4310 | { | |
4311 | XFREE(MTYPE_PEER_TX_SHUTDOWN_MSG, peer->tx_shutdown_message); | |
4312 | peer->tx_shutdown_message = | |
4313 | msg ? XSTRDUP(MTYPE_PEER_TX_SHUTDOWN_MSG, msg) : NULL; | |
4314 | return 0; | |
4315 | } | |
4316 | ||
4317 | int peer_tx_shutdown_message_unset(struct peer *peer) | |
4318 | { | |
4319 | XFREE(MTYPE_PEER_TX_SHUTDOWN_MSG, peer->tx_shutdown_message); | |
4320 | return 0; | |
4321 | } | |
4322 | ||
4323 | ||
4324 | /* EBGP multihop configuration. */ | |
4325 | int peer_ebgp_multihop_set(struct peer *peer, int ttl) | |
4326 | { | |
4327 | struct peer_group *group; | |
4328 | struct listnode *node, *nnode; | |
4329 | struct peer *peer1; | |
4330 | ||
4331 | if (peer->sort == BGP_PEER_IBGP || peer->conf_if) | |
4332 | return 0; | |
4333 | ||
4334 | /* see comment in peer_ttl_security_hops_set() */ | |
4335 | if (ttl != MAXTTL) { | |
4336 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4337 | group = peer->group; | |
4338 | if (group->conf->gtsm_hops != 0) | |
4339 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
4340 | ||
4341 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, | |
4342 | peer1)) { | |
4343 | if (peer1->sort == BGP_PEER_IBGP) | |
4344 | continue; | |
4345 | ||
4346 | if (peer1->gtsm_hops != 0) | |
4347 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
4348 | } | |
4349 | } else { | |
4350 | if (peer->gtsm_hops != 0) | |
4351 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
4352 | } | |
4353 | } | |
4354 | ||
4355 | peer->ttl = ttl; | |
4356 | ||
4357 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4358 | if (peer->fd >= 0 && peer->sort != BGP_PEER_IBGP) { | |
4359 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
4360 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4361 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4362 | else | |
4363 | bgp_session_reset(peer); | |
4364 | } | |
4365 | } else { | |
4366 | group = peer->group; | |
4367 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
4368 | if (peer->sort == BGP_PEER_IBGP) | |
4369 | continue; | |
4370 | ||
4371 | peer->ttl = group->conf->ttl; | |
4372 | ||
4373 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
4374 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4375 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4376 | else | |
4377 | bgp_session_reset(peer); | |
4378 | } | |
4379 | } | |
4380 | return 0; | |
4381 | } | |
4382 | ||
4383 | int peer_ebgp_multihop_unset(struct peer *peer) | |
4384 | { | |
4385 | struct peer_group *group; | |
4386 | struct listnode *node, *nnode; | |
4387 | ||
4388 | if (peer->sort == BGP_PEER_IBGP) | |
4389 | return 0; | |
4390 | ||
4391 | if (peer->gtsm_hops != 0 && peer->ttl != MAXTTL) | |
4392 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
4393 | ||
4394 | if (peer_group_active(peer)) | |
4395 | peer->ttl = peer->group->conf->ttl; | |
4396 | else | |
4397 | peer->ttl = 1; | |
4398 | ||
4399 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4400 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
4401 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4402 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4403 | else | |
4404 | bgp_session_reset(peer); | |
4405 | } else { | |
4406 | group = peer->group; | |
4407 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
4408 | if (peer->sort == BGP_PEER_IBGP) | |
4409 | continue; | |
4410 | ||
4411 | peer->ttl = 1; | |
4412 | ||
4413 | if (peer->fd >= 0) { | |
4414 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
4415 | bgp_notify_send( | |
4416 | peer, BGP_NOTIFY_CEASE, | |
4417 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4418 | else | |
4419 | bgp_session_reset(peer); | |
4420 | } | |
4421 | } | |
4422 | } | |
4423 | return 0; | |
4424 | } | |
4425 | ||
4426 | /* Neighbor description. */ | |
4427 | int peer_description_set(struct peer *peer, const char *desc) | |
4428 | { | |
4429 | if (peer->desc) | |
4430 | XFREE(MTYPE_PEER_DESC, peer->desc); | |
4431 | ||
4432 | peer->desc = XSTRDUP(MTYPE_PEER_DESC, desc); | |
4433 | ||
4434 | return 0; | |
4435 | } | |
4436 | ||
4437 | int peer_description_unset(struct peer *peer) | |
4438 | { | |
4439 | if (peer->desc) | |
4440 | XFREE(MTYPE_PEER_DESC, peer->desc); | |
4441 | ||
4442 | peer->desc = NULL; | |
4443 | ||
4444 | return 0; | |
4445 | } | |
4446 | ||
4447 | /* Neighbor update-source. */ | |
4448 | int peer_update_source_if_set(struct peer *peer, const char *ifname) | |
4449 | { | |
4450 | struct peer_group *group; | |
4451 | struct listnode *node, *nnode; | |
4452 | ||
4453 | if (peer->update_if) { | |
4454 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP) | |
4455 | && strcmp(peer->update_if, ifname) == 0) | |
4456 | return 0; | |
4457 | ||
4458 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); | |
4459 | peer->update_if = NULL; | |
4460 | } | |
4461 | ||
4462 | if (peer->update_source) { | |
4463 | sockunion_free(peer->update_source); | |
4464 | peer->update_source = NULL; | |
4465 | } | |
4466 | ||
4467 | peer->update_if = XSTRDUP(MTYPE_PEER_UPDATE_SOURCE, ifname); | |
4468 | ||
4469 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4470 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
4471 | peer->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4472 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4473 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4474 | } else | |
4475 | bgp_session_reset(peer); | |
4476 | return 0; | |
4477 | } | |
4478 | ||
4479 | /* peer-group member updates. */ | |
4480 | group = peer->group; | |
4481 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
4482 | if (peer->update_if) { | |
4483 | if (strcmp(peer->update_if, ifname) == 0) | |
4484 | continue; | |
4485 | ||
4486 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); | |
4487 | peer->update_if = NULL; | |
4488 | } | |
4489 | ||
4490 | if (peer->update_source) { | |
4491 | sockunion_free(peer->update_source); | |
4492 | peer->update_source = NULL; | |
4493 | } | |
4494 | ||
4495 | peer->update_if = XSTRDUP(MTYPE_PEER_UPDATE_SOURCE, ifname); | |
4496 | ||
4497 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
4498 | peer->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4499 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4500 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4501 | } else | |
4502 | bgp_session_reset(peer); | |
4503 | } | |
4504 | return 0; | |
4505 | } | |
4506 | ||
4507 | int peer_update_source_addr_set(struct peer *peer, const union sockunion *su) | |
4508 | { | |
4509 | struct peer_group *group; | |
4510 | struct listnode *node, *nnode; | |
4511 | ||
4512 | if (peer->update_source) { | |
4513 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP) | |
4514 | && sockunion_cmp(peer->update_source, su) == 0) | |
4515 | return 0; | |
4516 | sockunion_free(peer->update_source); | |
4517 | peer->update_source = NULL; | |
4518 | } | |
4519 | ||
4520 | if (peer->update_if) { | |
4521 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); | |
4522 | peer->update_if = NULL; | |
4523 | } | |
4524 | ||
4525 | peer->update_source = sockunion_dup(su); | |
4526 | ||
4527 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4528 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
4529 | peer->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4530 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4531 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4532 | } else | |
4533 | bgp_session_reset(peer); | |
4534 | return 0; | |
4535 | } | |
4536 | ||
4537 | /* peer-group member updates. */ | |
4538 | group = peer->group; | |
4539 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
4540 | if (peer->update_source) { | |
4541 | if (sockunion_cmp(peer->update_source, su) == 0) | |
4542 | continue; | |
4543 | sockunion_free(peer->update_source); | |
4544 | peer->update_source = NULL; | |
4545 | } | |
4546 | ||
4547 | if (peer->update_if) { | |
4548 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); | |
4549 | peer->update_if = NULL; | |
4550 | } | |
4551 | ||
4552 | peer->update_source = sockunion_dup(su); | |
4553 | ||
4554 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
4555 | peer->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4556 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4557 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4558 | } else | |
4559 | bgp_session_reset(peer); | |
4560 | } | |
4561 | return 0; | |
4562 | } | |
4563 | ||
4564 | int peer_update_source_unset(struct peer *peer) | |
4565 | { | |
4566 | union sockunion *su; | |
4567 | struct peer_group *group; | |
4568 | struct listnode *node, *nnode; | |
4569 | ||
4570 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP) && !peer->update_source | |
4571 | && !peer->update_if) | |
4572 | return 0; | |
4573 | ||
4574 | if (peer->update_source) { | |
4575 | sockunion_free(peer->update_source); | |
4576 | peer->update_source = NULL; | |
4577 | } | |
4578 | if (peer->update_if) { | |
4579 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); | |
4580 | peer->update_if = NULL; | |
4581 | } | |
4582 | ||
4583 | if (peer_group_active(peer)) { | |
4584 | group = peer->group; | |
4585 | ||
4586 | if (group->conf->update_source) { | |
4587 | su = sockunion_dup(group->conf->update_source); | |
4588 | peer->update_source = su; | |
4589 | } else if (group->conf->update_if) | |
4590 | peer->update_if = XSTRDUP(MTYPE_PEER_UPDATE_SOURCE, | |
4591 | group->conf->update_if); | |
4592 | } | |
4593 | ||
4594 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4595 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
4596 | peer->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4597 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4598 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4599 | } else | |
4600 | bgp_session_reset(peer); | |
4601 | return 0; | |
4602 | } | |
4603 | ||
4604 | /* peer-group member updates. */ | |
4605 | group = peer->group; | |
4606 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
4607 | if (!peer->update_source && !peer->update_if) | |
4608 | continue; | |
4609 | ||
4610 | if (peer->update_source) { | |
4611 | sockunion_free(peer->update_source); | |
4612 | peer->update_source = NULL; | |
4613 | } | |
4614 | ||
4615 | if (peer->update_if) { | |
4616 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); | |
4617 | peer->update_if = NULL; | |
4618 | } | |
4619 | ||
4620 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
4621 | peer->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4622 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4623 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4624 | } else | |
4625 | bgp_session_reset(peer); | |
4626 | } | |
4627 | return 0; | |
4628 | } | |
4629 | ||
4630 | int peer_default_originate_set(struct peer *peer, afi_t afi, safi_t safi, | |
4631 | const char *rmap) | |
4632 | { | |
598ce6bd | 4633 | struct peer *member; |
d62a17ae | 4634 | struct listnode *node, *nnode; |
4635 | ||
598ce6bd PM |
4636 | /* Set flag and configuration on peer. */ |
4637 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_DEFAULT_ORIGINATE); | |
4638 | if (rmap) { | |
4639 | if (!peer->default_rmap[afi][safi].name | |
4640 | || strcmp(rmap, peer->default_rmap[afi][safi].name) != 0) { | |
d62a17ae | 4641 | if (peer->default_rmap[afi][safi].name) |
4642 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
4643 | peer->default_rmap[afi][safi].name); | |
598ce6bd | 4644 | |
d62a17ae | 4645 | peer->default_rmap[afi][safi].name = |
4646 | XSTRDUP(MTYPE_ROUTE_MAP_NAME, rmap); | |
4647 | peer->default_rmap[afi][safi].map = | |
4648 | route_map_lookup_by_name(rmap); | |
4649 | } | |
598ce6bd PM |
4650 | } else if (!rmap) { |
4651 | if (peer->default_rmap[afi][safi].name) | |
4652 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
4653 | peer->default_rmap[afi][safi].name); | |
4654 | ||
4655 | peer->default_rmap[afi][safi].name = NULL; | |
4656 | peer->default_rmap[afi][safi].map = NULL; | |
d62a17ae | 4657 | } |
4658 | ||
598ce6bd | 4659 | /* Check if handling a regular peer. */ |
d62a17ae | 4660 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
598ce6bd | 4661 | /* Update peer route announcements. */ |
d62a17ae | 4662 | if (peer->status == Established && peer->afc_nego[afi][safi]) { |
4663 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
4664 | bgp_default_originate(peer, afi, safi, 0); | |
4665 | bgp_announce_route(peer, afi, safi); | |
4666 | } | |
598ce6bd PM |
4667 | |
4668 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 4669 | return 0; |
4670 | } | |
4671 | ||
598ce6bd PM |
4672 | /* |
4673 | * Set flag and configuration on all peer-group members, unless they are | |
4674 | * explicitely overriding peer-group configuration. | |
4675 | */ | |
4676 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4677 | /* Skip peers with overridden configuration. */ | |
4678 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
4679 | PEER_FLAG_DEFAULT_ORIGINATE)) | |
4680 | continue; | |
d62a17ae | 4681 | |
598ce6bd PM |
4682 | /* Set flag and configuration on peer-group member. */ |
4683 | SET_FLAG(member->af_flags[afi][safi], | |
4684 | PEER_FLAG_DEFAULT_ORIGINATE); | |
d62a17ae | 4685 | if (rmap) { |
598ce6bd | 4686 | if (member->default_rmap[afi][safi].name) |
d62a17ae | 4687 | XFREE(MTYPE_ROUTE_MAP_NAME, |
598ce6bd PM |
4688 | member->default_rmap[afi][safi].name); |
4689 | ||
4690 | member->default_rmap[afi][safi].name = | |
d62a17ae | 4691 | XSTRDUP(MTYPE_ROUTE_MAP_NAME, rmap); |
598ce6bd | 4692 | member->default_rmap[afi][safi].map = |
d62a17ae | 4693 | route_map_lookup_by_name(rmap); |
4694 | } | |
4695 | ||
598ce6bd PM |
4696 | /* Update peer route announcements. */ |
4697 | if (member->status == Established | |
4698 | && member->afc_nego[afi][safi]) { | |
4699 | update_group_adjust_peer( | |
4700 | peer_af_find(member, afi, safi)); | |
4701 | bgp_default_originate(member, afi, safi, 0); | |
4702 | bgp_announce_route(member, afi, safi); | |
d62a17ae | 4703 | } |
4704 | } | |
598ce6bd | 4705 | |
d62a17ae | 4706 | return 0; |
4707 | } | |
4708 | ||
4709 | int peer_default_originate_unset(struct peer *peer, afi_t afi, safi_t safi) | |
4710 | { | |
598ce6bd | 4711 | struct peer *member; |
d62a17ae | 4712 | struct listnode *node, *nnode; |
4713 | ||
598ce6bd PM |
4714 | /* Inherit configuration from peer-group if peer is member. */ |
4715 | if (peer_group_active(peer)) { | |
4716 | peer_af_flag_inherit(peer, afi, safi, | |
4717 | PEER_FLAG_DEFAULT_ORIGINATE); | |
e7103a96 PM |
4718 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
4719 | default_rmap[afi][safi].name, | |
4720 | MTYPE_ROUTE_MAP_NAME); | |
4721 | PEER_ATTR_INHERIT(peer, peer->group, | |
4722 | default_rmap[afi][safi].map); | |
598ce6bd PM |
4723 | } else { |
4724 | /* Otherwise remove flag and configuration from peer. */ | |
4725 | peer_af_flag_unset(peer, afi, safi, | |
4726 | PEER_FLAG_DEFAULT_ORIGINATE); | |
d62a17ae | 4727 | if (peer->default_rmap[afi][safi].name) |
4728 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
4729 | peer->default_rmap[afi][safi].name); | |
4730 | peer->default_rmap[afi][safi].name = NULL; | |
4731 | peer->default_rmap[afi][safi].map = NULL; | |
4732 | } | |
4733 | ||
598ce6bd | 4734 | /* Check if handling a regular peer. */ |
d62a17ae | 4735 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
598ce6bd | 4736 | /* Update peer route announcements. */ |
d62a17ae | 4737 | if (peer->status == Established && peer->afc_nego[afi][safi]) { |
4738 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
4739 | bgp_default_originate(peer, afi, safi, 1); | |
4740 | bgp_announce_route(peer, afi, safi); | |
4741 | } | |
598ce6bd PM |
4742 | |
4743 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 4744 | return 0; |
4745 | } | |
4746 | ||
598ce6bd PM |
4747 | /* |
4748 | * Remove flag and configuration from all peer-group members, unless | |
4749 | * they are explicitely overriding peer-group configuration. | |
4750 | */ | |
4751 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4752 | /* Skip peers with overridden configuration. */ | |
4753 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
4754 | PEER_FLAG_DEFAULT_ORIGINATE)) | |
4755 | continue; | |
4756 | ||
4757 | /* Remove flag and configuration on peer-group member. */ | |
d62a17ae | 4758 | UNSET_FLAG(peer->af_flags[afi][safi], |
4759 | PEER_FLAG_DEFAULT_ORIGINATE); | |
d62a17ae | 4760 | if (peer->default_rmap[afi][safi].name) |
4761 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
4762 | peer->default_rmap[afi][safi].name); | |
4763 | peer->default_rmap[afi][safi].name = NULL; | |
4764 | peer->default_rmap[afi][safi].map = NULL; | |
4765 | ||
598ce6bd | 4766 | /* Update peer route announcements. */ |
d62a17ae | 4767 | if (peer->status == Established && peer->afc_nego[afi][safi]) { |
4768 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
4769 | bgp_default_originate(peer, afi, safi, 1); | |
4770 | bgp_announce_route(peer, afi, safi); | |
4771 | } | |
4772 | } | |
598ce6bd | 4773 | |
d62a17ae | 4774 | return 0; |
4775 | } | |
4776 | ||
d7c0a89a | 4777 | int peer_port_set(struct peer *peer, uint16_t port) |
d62a17ae | 4778 | { |
4779 | peer->port = port; | |
4780 | return 0; | |
4781 | } | |
4782 | ||
4783 | int peer_port_unset(struct peer *peer) | |
4784 | { | |
4785 | peer->port = BGP_PORT_DEFAULT; | |
4786 | return 0; | |
4787 | } | |
4788 | ||
4789 | /* | |
4790 | * Helper function that is called after the name of the policy | |
4791 | * being used by a peer has changed (AF specific). Automatically | |
4792 | * initiates inbound or outbound processing as needed. | |
4793 | */ | |
4794 | static void peer_on_policy_change(struct peer *peer, afi_t afi, safi_t safi, | |
4795 | int outbound) | |
4796 | { | |
4797 | if (outbound) { | |
4798 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
4799 | if (peer->status == Established) | |
4800 | bgp_announce_route(peer, afi, safi); | |
4801 | } else { | |
4802 | if (peer->status != Established) | |
4803 | return; | |
4804 | ||
4805 | if (CHECK_FLAG(peer->af_flags[afi][safi], | |
4806 | PEER_FLAG_SOFT_RECONFIG)) | |
4807 | bgp_soft_reconfig_in(peer, afi, safi); | |
4808 | else if (CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_OLD_RCV) | |
4809 | || CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_NEW_RCV)) | |
4810 | bgp_route_refresh_send(peer, afi, safi, 0, 0, 0); | |
4811 | } | |
4812 | } | |
4813 | ||
4814 | ||
4815 | /* neighbor weight. */ | |
d7c0a89a | 4816 | int peer_weight_set(struct peer *peer, afi_t afi, safi_t safi, uint16_t weight) |
d62a17ae | 4817 | { |
598ce6bd | 4818 | struct peer *member; |
d62a17ae | 4819 | struct listnode *node, *nnode; |
4820 | ||
598ce6bd PM |
4821 | /* Set flag and configuration on peer. */ |
4822 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_WEIGHT); | |
d62a17ae | 4823 | if (peer->weight[afi][safi] != weight) { |
4824 | peer->weight[afi][safi] = weight; | |
d62a17ae | 4825 | peer_on_policy_change(peer, afi, safi, 0); |
4826 | } | |
4827 | ||
598ce6bd | 4828 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 4829 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) |
4830 | return 0; | |
4831 | ||
598ce6bd PM |
4832 | /* |
4833 | * Set flag and configuration on all peer-group members, unless they are | |
4834 | * explicitely overriding peer-group configuration. | |
4835 | */ | |
4836 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4837 | /* Skip peers with overridden configuration. */ | |
4838 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
4839 | PEER_FLAG_WEIGHT)) | |
4840 | continue; | |
4841 | ||
4842 | /* Set flag and configuration on peer-group member. */ | |
4843 | SET_FLAG(member->af_flags[afi][safi], PEER_FLAG_WEIGHT); | |
4844 | if (member->weight[afi][safi] != weight) { | |
4845 | member->weight[afi][safi] = weight; | |
4846 | peer_on_policy_change(member, afi, safi, 0); | |
d62a17ae | 4847 | } |
4848 | } | |
598ce6bd | 4849 | |
d62a17ae | 4850 | return 0; |
4851 | } | |
4852 | ||
4853 | int peer_weight_unset(struct peer *peer, afi_t afi, safi_t safi) | |
4854 | { | |
598ce6bd | 4855 | struct peer *member; |
d62a17ae | 4856 | struct listnode *node, *nnode; |
4857 | ||
598ce6bd PM |
4858 | if (!CHECK_FLAG(peer->af_flags[afi][safi], PEER_FLAG_WEIGHT)) |
4859 | return 0; | |
4860 | ||
4861 | /* Inherit configuration from peer-group if peer is member. */ | |
d62a17ae | 4862 | if (peer_group_active(peer)) { |
598ce6bd | 4863 | peer_af_flag_inherit(peer, afi, safi, PEER_FLAG_WEIGHT); |
e7103a96 | 4864 | PEER_ATTR_INHERIT(peer, peer->group, weight[afi][safi]); |
d62a17ae | 4865 | |
598ce6bd PM |
4866 | peer_on_policy_change(peer, afi, safi, 0); |
4867 | return 0; | |
d62a17ae | 4868 | } |
4869 | ||
598ce6bd PM |
4870 | /* Remove flag and configuration from peer. */ |
4871 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_WEIGHT); | |
4872 | peer->weight[afi][safi] = 0; | |
4873 | peer_on_policy_change(peer, afi, safi, 0); | |
d62a17ae | 4874 | |
598ce6bd PM |
4875 | /* Skip peer-group mechanics for regular peers. */ |
4876 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
4877 | return 0; | |
d62a17ae | 4878 | |
598ce6bd PM |
4879 | /* |
4880 | * Remove flag and configuration from all peer-group members, unless | |
4881 | * they are explicitely overriding peer-group configuration. | |
4882 | */ | |
4883 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4884 | /* Skip peers with overridden configuration. */ | |
4885 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
4886 | PEER_FLAG_WEIGHT)) | |
4887 | continue; | |
4888 | ||
4889 | /* Skip peers where flag is already disabled. */ | |
4890 | if (!CHECK_FLAG(member->af_flags[afi][safi], PEER_FLAG_WEIGHT)) | |
4891 | continue; | |
4892 | ||
4893 | /* Remove flag and configuration on peer-group member. */ | |
4894 | UNSET_FLAG(member->af_flags[afi][safi], PEER_FLAG_WEIGHT); | |
4895 | member->weight[afi][safi] = 0; | |
4896 | peer_on_policy_change(member, afi, safi, 0); | |
d62a17ae | 4897 | } |
598ce6bd | 4898 | |
d62a17ae | 4899 | return 0; |
4900 | } | |
4901 | ||
d7c0a89a | 4902 | int peer_timers_set(struct peer *peer, uint32_t keepalive, uint32_t holdtime) |
d62a17ae | 4903 | { |
b90a8e13 | 4904 | struct peer *member; |
d62a17ae | 4905 | struct listnode *node, *nnode; |
4906 | ||
d62a17ae | 4907 | if (keepalive > 65535) |
4908 | return BGP_ERR_INVALID_VALUE; | |
4909 | ||
d62a17ae | 4910 | if (holdtime > 65535) |
4911 | return BGP_ERR_INVALID_VALUE; | |
4912 | ||
d62a17ae | 4913 | if (holdtime < 3 && holdtime != 0) |
4914 | return BGP_ERR_INVALID_VALUE; | |
4915 | ||
b90a8e13 PM |
4916 | /* Set flag and configuration on peer. */ |
4917 | peer_flag_set(peer, PEER_FLAG_TIMER); | |
d62a17ae | 4918 | peer->holdtime = holdtime; |
4919 | peer->keepalive = (keepalive < holdtime / 3 ? keepalive : holdtime / 3); | |
4920 | ||
b90a8e13 PM |
4921 | /* Skip peer-group mechanics for regular peers. */ |
4922 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
4923 | return 0; | |
d25e4efc | 4924 | |
b90a8e13 PM |
4925 | /* |
4926 | * Set flag and configuration on all peer-group members, unless they are | |
4927 | * explicitely overriding peer-group configuration. | |
4928 | */ | |
4929 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4930 | /* Skip peers with overridden configuration. */ | |
4931 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_TIMER)) | |
4932 | continue; | |
d25e4efc | 4933 | |
b90a8e13 PM |
4934 | /* Set flag and configuration on peer-group member. */ |
4935 | SET_FLAG(member->flags, PEER_FLAG_TIMER); | |
4936 | PEER_ATTR_INHERIT(peer, peer->group, holdtime); | |
4937 | PEER_ATTR_INHERIT(peer, peer->group, keepalive); | |
d62a17ae | 4938 | } |
d25e4efc | 4939 | |
d62a17ae | 4940 | return 0; |
4941 | } | |
4942 | ||
4943 | int peer_timers_unset(struct peer *peer) | |
4944 | { | |
b90a8e13 | 4945 | struct peer *member; |
d62a17ae | 4946 | struct listnode *node, *nnode; |
4947 | ||
b90a8e13 PM |
4948 | /* Inherit configuration from peer-group if peer is member. */ |
4949 | if (peer_group_active(peer)) { | |
4950 | peer_flag_inherit(peer, PEER_FLAG_TIMER); | |
4951 | PEER_ATTR_INHERIT(peer, peer->group, holdtime); | |
4952 | PEER_ATTR_INHERIT(peer, peer->group, keepalive); | |
4953 | } else { | |
4954 | /* Otherwise remove flag and configuration from peer. */ | |
4955 | peer_flag_unset(peer, PEER_FLAG_TIMER); | |
d25e4efc | 4956 | peer->holdtime = 0; |
b90a8e13 PM |
4957 | peer->keepalive = 0; |
4958 | } | |
d25e4efc | 4959 | |
b90a8e13 PM |
4960 | /* Skip peer-group mechanics for regular peers. */ |
4961 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
4962 | return 0; | |
4963 | ||
4964 | /* | |
4965 | * Remove flag and configuration from all peer-group members, unless | |
4966 | * they are explicitely overriding peer-group configuration. | |
4967 | */ | |
4968 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4969 | /* Skip peers with overridden configuration. */ | |
4970 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_TIMER)) | |
4971 | continue; | |
d25e4efc | 4972 | |
b90a8e13 PM |
4973 | /* Remove flag and configuration on peer-group member. */ |
4974 | UNSET_FLAG(member->flags, PEER_FLAG_TIMER); | |
4975 | member->holdtime = 0; | |
4976 | member->keepalive = 0; | |
d62a17ae | 4977 | } |
4978 | ||
4979 | return 0; | |
4980 | } | |
4981 | ||
d7c0a89a | 4982 | int peer_timers_connect_set(struct peer *peer, uint32_t connect) |
d62a17ae | 4983 | { |
b90a8e13 | 4984 | struct peer *member; |
d62a17ae | 4985 | struct listnode *node, *nnode; |
4986 | ||
4987 | if (connect > 65535) | |
4988 | return BGP_ERR_INVALID_VALUE; | |
4989 | ||
b90a8e13 PM |
4990 | /* Set flag and configuration on peer. */ |
4991 | peer_flag_set(peer, PEER_FLAG_TIMER_CONNECT); | |
d62a17ae | 4992 | peer->connect = connect; |
d62a17ae | 4993 | peer->v_connect = connect; |
4994 | ||
b90a8e13 | 4995 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 4996 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) |
4997 | return 0; | |
4998 | ||
b90a8e13 PM |
4999 | /* |
5000 | * Set flag and configuration on all peer-group members, unless they are | |
5001 | * explicitely overriding peer-group configuration. | |
5002 | */ | |
5003 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5004 | /* Skip peers with overridden configuration. */ | |
5005 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_TIMER_CONNECT)) | |
5006 | continue; | |
5007 | ||
5008 | /* Set flag and configuration on peer-group member. */ | |
5009 | SET_FLAG(member->flags, PEER_FLAG_TIMER_CONNECT); | |
5010 | member->connect = connect; | |
5011 | member->v_connect = connect; | |
d62a17ae | 5012 | } |
b90a8e13 | 5013 | |
d62a17ae | 5014 | return 0; |
5015 | } | |
5016 | ||
5017 | int peer_timers_connect_unset(struct peer *peer) | |
5018 | { | |
b90a8e13 | 5019 | struct peer *member; |
d62a17ae | 5020 | struct listnode *node, *nnode; |
5021 | ||
b90a8e13 PM |
5022 | /* Inherit configuration from peer-group if peer is member. */ |
5023 | if (peer_group_active(peer)) { | |
5024 | peer_flag_inherit(peer, PEER_FLAG_TIMER_CONNECT); | |
5025 | PEER_ATTR_INHERIT(peer, peer->group, connect); | |
5026 | } else { | |
5027 | /* Otherwise remove flag and configuration from peer. */ | |
5028 | peer_flag_unset(peer, PEER_FLAG_TIMER_CONNECT); | |
5029 | peer->connect = 0; | |
5030 | } | |
d62a17ae | 5031 | |
b90a8e13 PM |
5032 | /* Set timer with fallback to default value. */ |
5033 | if (peer->connect) | |
5034 | peer->v_connect = peer->connect; | |
5035 | else | |
5036 | peer->v_connect = BGP_DEFAULT_CONNECT_RETRY; | |
d62a17ae | 5037 | |
b90a8e13 | 5038 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 5039 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) |
5040 | return 0; | |
5041 | ||
b90a8e13 PM |
5042 | /* |
5043 | * Remove flag and configuration from all peer-group members, unless | |
5044 | * they are explicitely overriding peer-group configuration. | |
5045 | */ | |
5046 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5047 | /* Skip peers with overridden configuration. */ | |
5048 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_TIMER_CONNECT)) | |
5049 | continue; | |
5050 | ||
5051 | /* Remove flag and configuration on peer-group member. */ | |
5052 | UNSET_FLAG(member->flags, PEER_FLAG_TIMER_CONNECT); | |
5053 | member->connect = 0; | |
5054 | member->v_connect = BGP_DEFAULT_CONNECT_RETRY; | |
d62a17ae | 5055 | } |
b90a8e13 | 5056 | |
d62a17ae | 5057 | return 0; |
5058 | } | |
5059 | ||
d7c0a89a | 5060 | int peer_advertise_interval_set(struct peer *peer, uint32_t routeadv) |
d62a17ae | 5061 | { |
b90a8e13 | 5062 | struct peer *member; |
d62a17ae | 5063 | struct listnode *node, *nnode; |
5064 | ||
5065 | if (routeadv > 600) | |
5066 | return BGP_ERR_INVALID_VALUE; | |
5067 | ||
b90a8e13 PM |
5068 | /* Set flag and configuration on peer. */ |
5069 | peer_flag_set(peer, PEER_FLAG_ROUTEADV); | |
d62a17ae | 5070 | peer->routeadv = routeadv; |
5071 | peer->v_routeadv = routeadv; | |
5072 | ||
b90a8e13 | 5073 | /* Check if handling a regular peer. */ |
d62a17ae | 5074 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
b90a8e13 | 5075 | /* Update peer route announcements. */ |
d62a17ae | 5076 | update_group_adjust_peer_afs(peer); |
5077 | if (peer->status == Established) | |
5078 | bgp_announce_route_all(peer); | |
b90a8e13 PM |
5079 | |
5080 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5081 | return 0; |
5082 | } | |
5083 | ||
b90a8e13 PM |
5084 | /* |
5085 | * Set flag and configuration on all peer-group members, unless they are | |
5086 | * explicitely overriding peer-group configuration. | |
5087 | */ | |
5088 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5089 | /* Skip peers with overridden configuration. */ | |
5090 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_ROUTEADV)) | |
5091 | continue; | |
5092 | ||
5093 | /* Set flag and configuration on peer-group member. */ | |
5094 | SET_FLAG(member->flags, PEER_FLAG_ROUTEADV); | |
5095 | member->routeadv = routeadv; | |
5096 | member->v_routeadv = routeadv; | |
5097 | ||
5098 | /* Update peer route announcements. */ | |
5099 | update_group_adjust_peer_afs(member); | |
5100 | if (member->status == Established) | |
5101 | bgp_announce_route_all(member); | |
d62a17ae | 5102 | } |
5103 | ||
5104 | return 0; | |
5105 | } | |
5106 | ||
5107 | int peer_advertise_interval_unset(struct peer *peer) | |
5108 | { | |
b90a8e13 | 5109 | struct peer *member; |
d62a17ae | 5110 | struct listnode *node, *nnode; |
5111 | ||
b90a8e13 PM |
5112 | /* Inherit configuration from peer-group if peer is member. */ |
5113 | if (peer_group_active(peer)) { | |
5114 | peer_flag_inherit(peer, PEER_FLAG_ROUTEADV); | |
5115 | PEER_ATTR_INHERIT(peer, peer->group, routeadv); | |
5116 | } else { | |
5117 | /* Otherwise remove flag and configuration from peer. */ | |
5118 | peer_flag_unset(peer, PEER_FLAG_ROUTEADV); | |
5119 | peer->routeadv = 0; | |
5120 | } | |
d62a17ae | 5121 | |
b90a8e13 PM |
5122 | /* Set timer with fallback to default value. */ |
5123 | if (peer->routeadv) | |
5124 | peer->v_routeadv = peer->routeadv; | |
d62a17ae | 5125 | else |
b90a8e13 PM |
5126 | peer->v_routeadv = (peer->sort == BGP_PEER_IBGP) |
5127 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
5128 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 5129 | |
b90a8e13 | 5130 | /* Check if handling a regular peer. */ |
d62a17ae | 5131 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
b90a8e13 | 5132 | /* Update peer route announcements. */ |
d62a17ae | 5133 | update_group_adjust_peer_afs(peer); |
5134 | if (peer->status == Established) | |
5135 | bgp_announce_route_all(peer); | |
b90a8e13 PM |
5136 | |
5137 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5138 | return 0; |
5139 | } | |
5140 | ||
b90a8e13 PM |
5141 | /* |
5142 | * Remove flag and configuration from all peer-group members, unless | |
5143 | * they are explicitely overriding peer-group configuration. | |
5144 | */ | |
5145 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5146 | /* Skip peers with overridden configuration. */ | |
5147 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_ROUTEADV)) | |
5148 | continue; | |
d62a17ae | 5149 | |
b90a8e13 PM |
5150 | /* Remove flag and configuration on peer-group member. */ |
5151 | UNSET_FLAG(member->flags, PEER_FLAG_ROUTEADV); | |
5152 | member->routeadv = 0; | |
5153 | member->v_routeadv = (member->sort == BGP_PEER_IBGP) | |
5154 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
5155 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 5156 | |
b90a8e13 PM |
5157 | /* Update peer route announcements. */ |
5158 | update_group_adjust_peer_afs(member); | |
5159 | if (member->status == Established) | |
5160 | bgp_announce_route_all(member); | |
d62a17ae | 5161 | } |
5162 | ||
5163 | return 0; | |
5164 | } | |
5165 | ||
5166 | /* neighbor interface */ | |
5167 | void peer_interface_set(struct peer *peer, const char *str) | |
5168 | { | |
5169 | if (peer->ifname) | |
5170 | XFREE(MTYPE_BGP_PEER_IFNAME, peer->ifname); | |
5171 | peer->ifname = XSTRDUP(MTYPE_BGP_PEER_IFNAME, str); | |
5172 | } | |
5173 | ||
5174 | void peer_interface_unset(struct peer *peer) | |
5175 | { | |
5176 | if (peer->ifname) | |
5177 | XFREE(MTYPE_BGP_PEER_IFNAME, peer->ifname); | |
5178 | peer->ifname = NULL; | |
5179 | } | |
5180 | ||
5181 | /* Allow-as in. */ | |
5182 | int peer_allowas_in_set(struct peer *peer, afi_t afi, safi_t safi, | |
5183 | int allow_num, int origin) | |
5184 | { | |
598ce6bd | 5185 | struct peer *member; |
d62a17ae | 5186 | struct listnode *node, *nnode; |
5187 | ||
598ce6bd PM |
5188 | if (!origin && (allow_num < 1 || allow_num > 10)) |
5189 | return BGP_ERR_INVALID_VALUE; | |
5190 | ||
5191 | /* Set flag and configuration on peer. */ | |
5192 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_ALLOWAS_IN); | |
d62a17ae | 5193 | if (origin) { |
598ce6bd | 5194 | if (peer->allowas_in[afi][safi] != 0 |
d62a17ae | 5195 | || !CHECK_FLAG(peer->af_flags[afi][safi], |
5196 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { | |
d62a17ae | 5197 | peer_af_flag_set(peer, afi, safi, |
5198 | PEER_FLAG_ALLOWAS_IN_ORIGIN); | |
598ce6bd | 5199 | peer->allowas_in[afi][safi] = 0; |
d62a17ae | 5200 | peer_on_policy_change(peer, afi, safi, 0); |
5201 | } | |
d62a17ae | 5202 | } else { |
d62a17ae | 5203 | if (peer->allowas_in[afi][safi] != allow_num |
5204 | || CHECK_FLAG(peer->af_flags[afi][safi], | |
5205 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { | |
598ce6bd | 5206 | |
d62a17ae | 5207 | peer_af_flag_unset(peer, afi, safi, |
5208 | PEER_FLAG_ALLOWAS_IN_ORIGIN); | |
598ce6bd | 5209 | peer->allowas_in[afi][safi] = allow_num; |
d62a17ae | 5210 | peer_on_policy_change(peer, afi, safi, 0); |
5211 | } | |
598ce6bd | 5212 | } |
d62a17ae | 5213 | |
598ce6bd PM |
5214 | /* Skip peer-group mechanics for regular peers. */ |
5215 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
5216 | return 0; | |
d62a17ae | 5217 | |
598ce6bd PM |
5218 | /* |
5219 | * Set flag and configuration on all peer-group members, unless | |
5220 | * they are explicitely overriding peer-group configuration. | |
5221 | */ | |
5222 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5223 | /* Skip peers with overridden configuration. */ | |
5224 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
246bb5f0 | 5225 | PEER_FLAG_ALLOWAS_IN)) |
598ce6bd PM |
5226 | continue; |
5227 | ||
5228 | /* Set flag and configuration on peer-group member. */ | |
5229 | SET_FLAG(member->af_flags[afi][safi], PEER_FLAG_ALLOWAS_IN); | |
5230 | if (origin) { | |
5231 | if (member->allowas_in[afi][safi] != 0 | |
5232 | || !CHECK_FLAG(member->af_flags[afi][safi], | |
cf9ac8bf | 5233 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { |
598ce6bd | 5234 | SET_FLAG(member->af_flags[afi][safi], |
cf9ac8bf | 5235 | PEER_FLAG_ALLOWAS_IN_ORIGIN); |
598ce6bd PM |
5236 | member->allowas_in[afi][safi] = 0; |
5237 | peer_on_policy_change(peer, afi, safi, 0); | |
5238 | } | |
5239 | } else { | |
5240 | if (member->allowas_in[afi][safi] != allow_num | |
5241 | || CHECK_FLAG(member->af_flags[afi][safi], | |
d62a17ae | 5242 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { |
598ce6bd PM |
5243 | UNSET_FLAG(member->af_flags[afi][safi], |
5244 | PEER_FLAG_ALLOWAS_IN_ORIGIN); | |
5245 | member->allowas_in[afi][safi] = allow_num; | |
d62a17ae | 5246 | peer_on_policy_change(peer, afi, safi, 0); |
5247 | } | |
5248 | } | |
5249 | } | |
5250 | ||
5251 | return 0; | |
5252 | } | |
5253 | ||
5254 | int peer_allowas_in_unset(struct peer *peer, afi_t afi, safi_t safi) | |
5255 | { | |
598ce6bd | 5256 | struct peer *member; |
d62a17ae | 5257 | struct listnode *node, *nnode; |
5258 | ||
598ce6bd PM |
5259 | /* Skip peer if flag is already disabled. */ |
5260 | if (!CHECK_FLAG(peer->af_flags[afi][safi], PEER_FLAG_ALLOWAS_IN)) | |
5261 | return 0; | |
d62a17ae | 5262 | |
598ce6bd PM |
5263 | /* Inherit configuration from peer-group if peer is member. */ |
5264 | if (peer_group_active(peer)) { | |
5265 | peer_af_flag_inherit(peer, afi, safi, PEER_FLAG_ALLOWAS_IN); | |
5266 | peer_af_flag_inherit(peer, afi, safi, | |
cf9ac8bf | 5267 | PEER_FLAG_ALLOWAS_IN_ORIGIN); |
e7103a96 | 5268 | PEER_ATTR_INHERIT(peer, peer->group, allowas_in[afi][safi]); |
d62a17ae | 5269 | peer_on_policy_change(peer, afi, safi, 0); |
598ce6bd PM |
5270 | |
5271 | return 0; | |
5272 | } | |
5273 | ||
5274 | /* Remove flag and configuration from peer. */ | |
5275 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_ALLOWAS_IN); | |
5276 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_ALLOWAS_IN_ORIGIN); | |
5277 | peer->allowas_in[afi][safi] = 0; | |
5278 | peer_on_policy_change(peer, afi, safi, 0); | |
5279 | ||
5280 | /* Skip peer-group mechanics if handling a regular peer. */ | |
5281 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
5282 | return 0; | |
5283 | ||
5284 | /* | |
5285 | * Remove flags and configuration from all peer-group members, unless | |
5286 | * they are explicitely overriding peer-group configuration. | |
5287 | */ | |
5288 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5289 | /* Skip peers with overridden configuration. */ | |
5290 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
cf9ac8bf | 5291 | PEER_FLAG_ALLOWAS_IN)) |
598ce6bd PM |
5292 | continue; |
5293 | ||
5294 | /* Skip peers where flag is already disabled. */ | |
5295 | if (!CHECK_FLAG(member->af_flags[afi][safi], | |
cf9ac8bf | 5296 | PEER_FLAG_ALLOWAS_IN)) |
598ce6bd PM |
5297 | continue; |
5298 | ||
5299 | /* Remove flags and configuration on peer-group member. */ | |
cf9ac8bf | 5300 | UNSET_FLAG(member->af_flags[afi][safi], PEER_FLAG_ALLOWAS_IN); |
598ce6bd | 5301 | UNSET_FLAG(member->af_flags[afi][safi], |
cf9ac8bf | 5302 | PEER_FLAG_ALLOWAS_IN_ORIGIN); |
598ce6bd PM |
5303 | member->allowas_in[afi][safi] = 0; |
5304 | peer_on_policy_change(member, afi, safi, 0); | |
d62a17ae | 5305 | } |
5306 | ||
5307 | return 0; | |
5308 | } | |
5309 | ||
5310 | int peer_local_as_set(struct peer *peer, as_t as, int no_prepend, | |
5311 | int replace_as) | |
5312 | { | |
5313 | struct bgp *bgp = peer->bgp; | |
5314 | struct peer_group *group; | |
5315 | struct listnode *node, *nnode; | |
5316 | ||
5317 | if (peer_sort(peer) != BGP_PEER_EBGP | |
5318 | && peer_sort(peer) != BGP_PEER_INTERNAL) | |
5319 | return BGP_ERR_LOCAL_AS_ALLOWED_ONLY_FOR_EBGP; | |
5320 | ||
5321 | if (bgp->as == as) | |
5322 | return BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS; | |
5323 | ||
5324 | if (peer->as == as) | |
5325 | return BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS_REMOTE_AS; | |
5326 | ||
5327 | if (peer->change_local_as == as | |
5328 | && ((CHECK_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND) | |
5329 | && no_prepend) | |
5330 | || (!CHECK_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND) | |
5331 | && !no_prepend)) | |
5332 | && ((CHECK_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS) | |
5333 | && replace_as) | |
5334 | || (!CHECK_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS) | |
5335 | && !replace_as))) | |
5336 | return 0; | |
5337 | ||
5338 | peer->change_local_as = as; | |
5339 | if (no_prepend) | |
5340 | SET_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5341 | else | |
5342 | UNSET_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5343 | ||
5344 | if (replace_as) | |
5345 | SET_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
5346 | else | |
5347 | UNSET_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
5348 | ||
5349 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
5350 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
5351 | peer->last_reset = PEER_DOWN_LOCAL_AS_CHANGE; | |
5352 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5353 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5354 | } else | |
5355 | bgp_session_reset(peer); | |
5356 | return 0; | |
5357 | } | |
5358 | ||
5359 | group = peer->group; | |
5360 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
5361 | peer->change_local_as = as; | |
5362 | if (no_prepend) | |
5363 | SET_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5364 | else | |
5365 | UNSET_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5366 | ||
5367 | if (replace_as) | |
5368 | SET_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
5369 | else | |
5370 | UNSET_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
5371 | ||
5372 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
5373 | peer->last_reset = PEER_DOWN_LOCAL_AS_CHANGE; | |
5374 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5375 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5376 | } else | |
5377 | BGP_EVENT_ADD(peer, BGP_Stop); | |
5378 | } | |
5379 | ||
5380 | return 0; | |
5381 | } | |
5382 | ||
5383 | int peer_local_as_unset(struct peer *peer) | |
5384 | { | |
5385 | struct peer_group *group; | |
5386 | struct listnode *node, *nnode; | |
5387 | ||
5388 | if (!peer->change_local_as) | |
5389 | return 0; | |
5390 | ||
5391 | peer->change_local_as = 0; | |
5392 | UNSET_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5393 | UNSET_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
5394 | ||
5395 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
5396 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
5397 | peer->last_reset = PEER_DOWN_LOCAL_AS_CHANGE; | |
5398 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5399 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5400 | } else | |
5401 | BGP_EVENT_ADD(peer, BGP_Stop); | |
5402 | ||
5403 | return 0; | |
5404 | } | |
5405 | ||
5406 | group = peer->group; | |
5407 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
5408 | peer->change_local_as = 0; | |
5409 | UNSET_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5410 | UNSET_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
5411 | ||
5412 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
5413 | peer->last_reset = PEER_DOWN_LOCAL_AS_CHANGE; | |
5414 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5415 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5416 | } else | |
5417 | bgp_session_reset(peer); | |
5418 | } | |
5419 | return 0; | |
5420 | } | |
5421 | ||
5422 | /* Set password for authenticating with the peer. */ | |
5423 | int peer_password_set(struct peer *peer, const char *password) | |
5424 | { | |
5425 | struct listnode *nn, *nnode; | |
5426 | int len = password ? strlen(password) : 0; | |
5427 | int ret = BGP_SUCCESS; | |
5428 | ||
5429 | if ((len < PEER_PASSWORD_MINLEN) || (len > PEER_PASSWORD_MAXLEN)) | |
5430 | return BGP_ERR_INVALID_VALUE; | |
5431 | ||
5432 | if (peer->password && strcmp(peer->password, password) == 0 | |
5433 | && !CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
5434 | return 0; | |
5435 | ||
5436 | if (peer->password) | |
5437 | XFREE(MTYPE_PEER_PASSWORD, peer->password); | |
5438 | ||
5439 | peer->password = XSTRDUP(MTYPE_PEER_PASSWORD, password); | |
5440 | ||
5441 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
5442 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
5443 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5444 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5445 | else | |
5446 | bgp_session_reset(peer); | |
5447 | ||
5448 | if (BGP_PEER_SU_UNSPEC(peer)) | |
5449 | return BGP_SUCCESS; | |
5450 | ||
5451 | return (bgp_md5_set(peer) >= 0) ? BGP_SUCCESS | |
5452 | : BGP_ERR_TCPSIG_FAILED; | |
5453 | } | |
5454 | ||
5455 | for (ALL_LIST_ELEMENTS(peer->group->peer, nn, nnode, peer)) { | |
5456 | if (peer->password && strcmp(peer->password, password) == 0) | |
5457 | continue; | |
5458 | ||
5459 | if (peer->password) | |
5460 | XFREE(MTYPE_PEER_PASSWORD, peer->password); | |
5461 | ||
5462 | peer->password = XSTRDUP(MTYPE_PEER_PASSWORD, password); | |
5463 | ||
5464 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
5465 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5466 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5467 | else | |
5468 | bgp_session_reset(peer); | |
5469 | ||
5470 | if (!BGP_PEER_SU_UNSPEC(peer)) { | |
5471 | if (bgp_md5_set(peer) < 0) | |
5472 | ret = BGP_ERR_TCPSIG_FAILED; | |
5473 | } | |
5474 | } | |
5475 | ||
5476 | return ret; | |
5477 | } | |
5478 | ||
5479 | int peer_password_unset(struct peer *peer) | |
5480 | { | |
5481 | struct listnode *nn, *nnode; | |
5482 | ||
5483 | if (!peer->password && !CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
5484 | return 0; | |
5485 | ||
5486 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
5487 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
5488 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5489 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5490 | else | |
5491 | bgp_session_reset(peer); | |
5492 | ||
5493 | if (peer->password) | |
5494 | XFREE(MTYPE_PEER_PASSWORD, peer->password); | |
5495 | ||
5496 | peer->password = NULL; | |
5497 | ||
5498 | if (!BGP_PEER_SU_UNSPEC(peer)) | |
5499 | bgp_md5_unset(peer); | |
5500 | ||
5501 | return 0; | |
5502 | } | |
5503 | ||
5504 | XFREE(MTYPE_PEER_PASSWORD, peer->password); | |
5505 | peer->password = NULL; | |
5506 | ||
5507 | for (ALL_LIST_ELEMENTS(peer->group->peer, nn, nnode, peer)) { | |
5508 | if (!peer->password) | |
5509 | continue; | |
5510 | ||
5511 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
5512 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5513 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5514 | else | |
5515 | bgp_session_reset(peer); | |
5516 | ||
5517 | XFREE(MTYPE_PEER_PASSWORD, peer->password); | |
5518 | peer->password = NULL; | |
5519 | ||
5520 | if (!BGP_PEER_SU_UNSPEC(peer)) | |
5521 | bgp_md5_unset(peer); | |
5522 | } | |
5523 | ||
5524 | return 0; | |
5525 | } | |
6b0655a2 | 5526 | |
3f9c7369 | 5527 | |
718e3744 | 5528 | /* Set distribute list to the peer. */ |
d62a17ae | 5529 | int peer_distribute_set(struct peer *peer, afi_t afi, safi_t safi, int direct, |
5530 | const char *name) | |
5531 | { | |
70ee29b4 | 5532 | struct peer *member; |
d62a17ae | 5533 | struct bgp_filter *filter; |
d62a17ae | 5534 | struct listnode *node, *nnode; |
5535 | ||
5536 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5537 | return BGP_ERR_INVALID_VALUE; | |
5538 | ||
70ee29b4 | 5539 | /* Set configuration on peer. */ |
d62a17ae | 5540 | filter = &peer->filter[afi][safi]; |
d62a17ae | 5541 | if (filter->plist[direct].name) |
5542 | return BGP_ERR_PEER_FILTER_CONFLICT; | |
d62a17ae | 5543 | if (filter->dlist[direct].name) |
5544 | XFREE(MTYPE_BGP_FILTER_NAME, filter->dlist[direct].name); | |
5545 | filter->dlist[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5546 | filter->dlist[direct].alist = access_list_lookup(afi, name); | |
5547 | ||
70ee29b4 | 5548 | /* Check if handling a regular peer. */ |
d62a17ae | 5549 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
5550 | /* Set override-flag and process peer route updates. */ |
5551 | SET_FLAG(peer->filter_override[afi][safi][direct], | |
5552 | PEER_FT_DISTRIBUTE_LIST); | |
d62a17ae | 5553 | peer_on_policy_change(peer, afi, safi, |
5554 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
5555 | |
5556 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5557 | return 0; |
5558 | } | |
5559 | ||
70ee29b4 PM |
5560 | /* |
5561 | * Set configuration on all peer-group members, un less they are | |
5562 | * explicitely overriding peer-group configuration. | |
5563 | */ | |
5564 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5565 | /* Skip peers with overridden configuration. */ | |
5566 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
5567 | PEER_FT_DISTRIBUTE_LIST)) | |
5568 | continue; | |
d62a17ae | 5569 | |
70ee29b4 PM |
5570 | /* Set configuration on peer-group member. */ |
5571 | filter = &member->filter[afi][safi]; | |
d62a17ae | 5572 | if (filter->dlist[direct].name) |
5573 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5574 | filter->dlist[direct].name); | |
5575 | filter->dlist[direct].name = | |
5576 | XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5577 | filter->dlist[direct].alist = access_list_lookup(afi, name); | |
70ee29b4 PM |
5578 | |
5579 | /* Process peer route updates. */ | |
5580 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 5581 | (direct == FILTER_OUT) ? 1 : 0); |
5582 | } | |
5583 | ||
5584 | return 0; | |
5585 | } | |
5586 | ||
5587 | int peer_distribute_unset(struct peer *peer, afi_t afi, safi_t safi, int direct) | |
5588 | { | |
70ee29b4 | 5589 | struct peer *member; |
d62a17ae | 5590 | struct bgp_filter *filter; |
d62a17ae | 5591 | struct listnode *node, *nnode; |
5592 | ||
5593 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5594 | return BGP_ERR_INVALID_VALUE; | |
5595 | ||
70ee29b4 PM |
5596 | /* Unset override-flag unconditionally. */ |
5597 | UNSET_FLAG(peer->filter_override[afi][safi][direct], | |
5598 | PEER_FT_DISTRIBUTE_LIST); | |
d62a17ae | 5599 | |
70ee29b4 | 5600 | /* Inherit configuration from peer-group if peer is member. */ |
d62a17ae | 5601 | if (peer_group_active(peer)) { |
e7103a96 PM |
5602 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
5603 | filter[afi][safi].dlist[direct].name, | |
5604 | MTYPE_BGP_FILTER_NAME); | |
5605 | PEER_ATTR_INHERIT(peer, peer->group, | |
5606 | filter[afi][safi].dlist[direct].alist); | |
70ee29b4 PM |
5607 | } else { |
5608 | /* Otherwise remove configuration from peer. */ | |
5609 | filter = &peer->filter[afi][safi]; | |
5610 | if (filter->dlist[direct].name) | |
5611 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5612 | filter->dlist[direct].name); | |
5613 | filter->dlist[direct].name = NULL; | |
5614 | filter->dlist[direct].alist = NULL; | |
d62a17ae | 5615 | } |
5616 | ||
70ee29b4 | 5617 | /* Check if handling a regular peer. */ |
d62a17ae | 5618 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 5619 | /* Process peer route updates. */ |
d62a17ae | 5620 | peer_on_policy_change(peer, afi, safi, |
5621 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
5622 | |
5623 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5624 | return 0; |
5625 | } | |
5626 | ||
70ee29b4 PM |
5627 | /* |
5628 | * Remove configuration on all peer-group members, unless they are | |
5629 | * explicitely overriding peer-group configuration. | |
5630 | */ | |
5631 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5632 | /* Skip peers with overridden configuration. */ | |
5633 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
5634 | PEER_FT_DISTRIBUTE_LIST)) | |
5635 | continue; | |
d62a17ae | 5636 | |
70ee29b4 PM |
5637 | /* Remove configuration on peer-group member. */ |
5638 | filter = &member->filter[afi][safi]; | |
d62a17ae | 5639 | if (filter->dlist[direct].name) |
5640 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5641 | filter->dlist[direct].name); | |
5642 | filter->dlist[direct].name = NULL; | |
5643 | filter->dlist[direct].alist = NULL; | |
70ee29b4 PM |
5644 | |
5645 | /* Process peer route updates. */ | |
5646 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 5647 | (direct == FILTER_OUT) ? 1 : 0); |
5648 | } | |
5649 | ||
5650 | return 0; | |
5651 | } | |
5652 | ||
5653 | /* Update distribute list. */ | |
5654 | static void peer_distribute_update(struct access_list *access) | |
5655 | { | |
5656 | afi_t afi; | |
5657 | safi_t safi; | |
5658 | int direct; | |
5659 | struct listnode *mnode, *mnnode; | |
5660 | struct listnode *node, *nnode; | |
5661 | struct bgp *bgp; | |
5662 | struct peer *peer; | |
5663 | struct peer_group *group; | |
5664 | struct bgp_filter *filter; | |
5665 | ||
5666 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
5667 | if (access->name) | |
5668 | update_group_policy_update(bgp, BGP_POLICY_FILTER_LIST, | |
5669 | access->name, 0, 0); | |
5670 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
05c7a1cc QY |
5671 | FOREACH_AFI_SAFI (afi, safi) { |
5672 | filter = &peer->filter[afi][safi]; | |
5673 | ||
5674 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
5675 | direct++) { | |
5676 | if (filter->dlist[direct].name) | |
5677 | filter->dlist[direct] | |
5678 | .alist = access_list_lookup( | |
5679 | afi, | |
d62a17ae | 5680 | filter->dlist[direct] |
05c7a1cc QY |
5681 | .name); |
5682 | else | |
5683 | filter->dlist[direct].alist = | |
5684 | NULL; | |
d62a17ae | 5685 | } |
05c7a1cc | 5686 | } |
d62a17ae | 5687 | } |
5688 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
05c7a1cc QY |
5689 | FOREACH_AFI_SAFI (afi, safi) { |
5690 | filter = &group->conf->filter[afi][safi]; | |
5691 | ||
5692 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
5693 | direct++) { | |
5694 | if (filter->dlist[direct].name) | |
5695 | filter->dlist[direct] | |
5696 | .alist = access_list_lookup( | |
5697 | afi, | |
d62a17ae | 5698 | filter->dlist[direct] |
05c7a1cc QY |
5699 | .name); |
5700 | else | |
5701 | filter->dlist[direct].alist = | |
5702 | NULL; | |
d62a17ae | 5703 | } |
05c7a1cc | 5704 | } |
d62a17ae | 5705 | } |
5706 | #if ENABLE_BGP_VNC | |
5707 | vnc_prefix_list_update(bgp); | |
5708 | #endif | |
5709 | } | |
5710 | } | |
5711 | ||
5712 | /* Set prefix list to the peer. */ | |
5713 | int peer_prefix_list_set(struct peer *peer, afi_t afi, safi_t safi, int direct, | |
5714 | const char *name) | |
5715 | { | |
70ee29b4 | 5716 | struct peer *member; |
d62a17ae | 5717 | struct bgp_filter *filter; |
d62a17ae | 5718 | struct listnode *node, *nnode; |
5719 | ||
5720 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5721 | return BGP_ERR_INVALID_VALUE; | |
5722 | ||
70ee29b4 | 5723 | /* Set configuration on peer. */ |
d62a17ae | 5724 | filter = &peer->filter[afi][safi]; |
d62a17ae | 5725 | if (filter->dlist[direct].name) |
5726 | return BGP_ERR_PEER_FILTER_CONFLICT; | |
d62a17ae | 5727 | if (filter->plist[direct].name) |
5728 | XFREE(MTYPE_BGP_FILTER_NAME, filter->plist[direct].name); | |
5729 | filter->plist[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5730 | filter->plist[direct].plist = prefix_list_lookup(afi, name); | |
5731 | ||
70ee29b4 | 5732 | /* Check if handling a regular peer. */ |
d62a17ae | 5733 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
5734 | /* Set override-flag and process peer route updates. */ |
5735 | SET_FLAG(peer->filter_override[afi][safi][direct], | |
5736 | PEER_FT_PREFIX_LIST); | |
d62a17ae | 5737 | peer_on_policy_change(peer, afi, safi, |
5738 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
5739 | |
5740 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5741 | return 0; |
5742 | } | |
5743 | ||
70ee29b4 PM |
5744 | /* |
5745 | * Set configuration on all peer-group members, unless they are | |
5746 | * explicitely overriding peer-group configuration. | |
5747 | */ | |
5748 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5749 | /* Skip peers with overridden configuration. */ | |
5750 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
5751 | PEER_FT_PREFIX_LIST)) | |
5752 | continue; | |
d62a17ae | 5753 | |
70ee29b4 PM |
5754 | /* Set configuration on peer-group member. */ |
5755 | filter = &member->filter[afi][safi]; | |
d62a17ae | 5756 | if (filter->plist[direct].name) |
5757 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5758 | filter->plist[direct].name); | |
5759 | filter->plist[direct].name = | |
5760 | XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5761 | filter->plist[direct].plist = prefix_list_lookup(afi, name); | |
70ee29b4 PM |
5762 | |
5763 | /* Process peer route updates. */ | |
5764 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 5765 | (direct == FILTER_OUT) ? 1 : 0); |
5766 | } | |
70ee29b4 | 5767 | |
d62a17ae | 5768 | return 0; |
5769 | } | |
5770 | ||
5771 | int peer_prefix_list_unset(struct peer *peer, afi_t afi, safi_t safi, | |
5772 | int direct) | |
5773 | { | |
70ee29b4 | 5774 | struct peer *member; |
d62a17ae | 5775 | struct bgp_filter *filter; |
d62a17ae | 5776 | struct listnode *node, *nnode; |
5777 | ||
5778 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5779 | return BGP_ERR_INVALID_VALUE; | |
5780 | ||
70ee29b4 PM |
5781 | /* Unset override-flag unconditionally. */ |
5782 | UNSET_FLAG(peer->filter_override[afi][safi][direct], | |
5783 | PEER_FT_PREFIX_LIST); | |
d62a17ae | 5784 | |
70ee29b4 | 5785 | /* Inherit configuration from peer-group if peer is member. */ |
d62a17ae | 5786 | if (peer_group_active(peer)) { |
e7103a96 PM |
5787 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
5788 | filter[afi][safi].plist[direct].name, | |
5789 | MTYPE_BGP_FILTER_NAME); | |
5790 | PEER_ATTR_INHERIT(peer, peer->group, | |
5791 | filter[afi][safi].plist[direct].plist); | |
70ee29b4 PM |
5792 | } else { |
5793 | /* Otherwise remove configuration from peer. */ | |
5794 | filter = &peer->filter[afi][safi]; | |
5795 | if (filter->plist[direct].name) | |
5796 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5797 | filter->plist[direct].name); | |
5798 | filter->plist[direct].name = NULL; | |
5799 | filter->plist[direct].plist = NULL; | |
d62a17ae | 5800 | } |
5801 | ||
70ee29b4 | 5802 | /* Check if handling a regular peer. */ |
d62a17ae | 5803 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 5804 | /* Process peer route updates. */ |
d62a17ae | 5805 | peer_on_policy_change(peer, afi, safi, |
5806 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
5807 | |
5808 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5809 | return 0; |
5810 | } | |
5811 | ||
70ee29b4 PM |
5812 | /* |
5813 | * Remove configuration on all peer-group members, unless they are | |
5814 | * explicitely overriding peer-group configuration. | |
5815 | */ | |
5816 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5817 | /* Skip peers with overridden configuration. */ | |
5818 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
5819 | PEER_FT_PREFIX_LIST)) | |
5820 | continue; | |
d62a17ae | 5821 | |
70ee29b4 PM |
5822 | /* Remove configuration on peer-group member. */ |
5823 | filter = &member->filter[afi][safi]; | |
d62a17ae | 5824 | if (filter->plist[direct].name) |
5825 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5826 | filter->plist[direct].name); | |
5827 | filter->plist[direct].name = NULL; | |
5828 | filter->plist[direct].plist = NULL; | |
70ee29b4 PM |
5829 | |
5830 | /* Process peer route updates. */ | |
5831 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 5832 | (direct == FILTER_OUT) ? 1 : 0); |
5833 | } | |
5834 | ||
5835 | return 0; | |
5836 | } | |
5837 | ||
5838 | /* Update prefix-list list. */ | |
5839 | static void peer_prefix_list_update(struct prefix_list *plist) | |
5840 | { | |
5841 | struct listnode *mnode, *mnnode; | |
5842 | struct listnode *node, *nnode; | |
5843 | struct bgp *bgp; | |
5844 | struct peer *peer; | |
5845 | struct peer_group *group; | |
5846 | struct bgp_filter *filter; | |
5847 | afi_t afi; | |
5848 | safi_t safi; | |
5849 | int direct; | |
5850 | ||
5851 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
5852 | ||
5853 | /* | |
5854 | * Update the prefix-list on update groups. | |
5855 | */ | |
5856 | update_group_policy_update( | |
5857 | bgp, BGP_POLICY_PREFIX_LIST, | |
5858 | plist ? prefix_list_name(plist) : NULL, 0, 0); | |
5859 | ||
5860 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
05c7a1cc QY |
5861 | FOREACH_AFI_SAFI (afi, safi) { |
5862 | filter = &peer->filter[afi][safi]; | |
5863 | ||
5864 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
5865 | direct++) { | |
5866 | if (filter->plist[direct].name) | |
5867 | filter->plist[direct] | |
5868 | .plist = prefix_list_lookup( | |
5869 | afi, | |
d62a17ae | 5870 | filter->plist[direct] |
05c7a1cc QY |
5871 | .name); |
5872 | else | |
5873 | filter->plist[direct].plist = | |
5874 | NULL; | |
d62a17ae | 5875 | } |
05c7a1cc | 5876 | } |
d62a17ae | 5877 | } |
5878 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
05c7a1cc QY |
5879 | FOREACH_AFI_SAFI (afi, safi) { |
5880 | filter = &group->conf->filter[afi][safi]; | |
5881 | ||
5882 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
5883 | direct++) { | |
5884 | if (filter->plist[direct].name) | |
5885 | filter->plist[direct] | |
5886 | .plist = prefix_list_lookup( | |
5887 | afi, | |
d62a17ae | 5888 | filter->plist[direct] |
05c7a1cc QY |
5889 | .name); |
5890 | else | |
5891 | filter->plist[direct].plist = | |
5892 | NULL; | |
d62a17ae | 5893 | } |
05c7a1cc | 5894 | } |
d62a17ae | 5895 | } |
5896 | } | |
5897 | } | |
5898 | ||
5899 | int peer_aslist_set(struct peer *peer, afi_t afi, safi_t safi, int direct, | |
5900 | const char *name) | |
5901 | { | |
70ee29b4 | 5902 | struct peer *member; |
d62a17ae | 5903 | struct bgp_filter *filter; |
d62a17ae | 5904 | struct listnode *node, *nnode; |
5905 | ||
5906 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5907 | return BGP_ERR_INVALID_VALUE; | |
5908 | ||
70ee29b4 | 5909 | /* Set configuration on peer. */ |
d62a17ae | 5910 | filter = &peer->filter[afi][safi]; |
d62a17ae | 5911 | if (filter->aslist[direct].name) |
5912 | XFREE(MTYPE_BGP_FILTER_NAME, filter->aslist[direct].name); | |
5913 | filter->aslist[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5914 | filter->aslist[direct].aslist = as_list_lookup(name); | |
5915 | ||
70ee29b4 | 5916 | /* Check if handling a regular peer. */ |
d62a17ae | 5917 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
5918 | /* Set override-flag and process peer route updates. */ |
5919 | SET_FLAG(peer->filter_override[afi][safi][direct], | |
5920 | PEER_FT_FILTER_LIST); | |
d62a17ae | 5921 | peer_on_policy_change(peer, afi, safi, |
5922 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
5923 | |
5924 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5925 | return 0; |
5926 | } | |
5927 | ||
70ee29b4 PM |
5928 | /* |
5929 | * Set configuration on all peer-group members, unless they are | |
5930 | * explicitely overriding peer-group configuration. | |
5931 | */ | |
5932 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5933 | /* Skip peers with overridden configuration. */ | |
5934 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
5935 | PEER_FT_FILTER_LIST)) | |
5936 | continue; | |
d62a17ae | 5937 | |
70ee29b4 PM |
5938 | /* Set configuration on peer-group member. */ |
5939 | filter = &member->filter[afi][safi]; | |
d62a17ae | 5940 | if (filter->aslist[direct].name) |
5941 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5942 | filter->aslist[direct].name); | |
5943 | filter->aslist[direct].name = | |
5944 | XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5945 | filter->aslist[direct].aslist = as_list_lookup(name); | |
70ee29b4 PM |
5946 | |
5947 | /* Process peer route updates. */ | |
5948 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 5949 | (direct == FILTER_OUT) ? 1 : 0); |
5950 | } | |
70ee29b4 | 5951 | |
d62a17ae | 5952 | return 0; |
5953 | } | |
5954 | ||
5955 | int peer_aslist_unset(struct peer *peer, afi_t afi, safi_t safi, int direct) | |
5956 | { | |
70ee29b4 | 5957 | struct peer *member; |
d62a17ae | 5958 | struct bgp_filter *filter; |
d62a17ae | 5959 | struct listnode *node, *nnode; |
5960 | ||
5961 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5962 | return BGP_ERR_INVALID_VALUE; | |
5963 | ||
70ee29b4 PM |
5964 | /* Unset override-flag unconditionally. */ |
5965 | UNSET_FLAG(peer->filter_override[afi][safi][direct], | |
5966 | PEER_FT_FILTER_LIST); | |
d62a17ae | 5967 | |
70ee29b4 | 5968 | /* Inherit configuration from peer-group if peer is member. */ |
d62a17ae | 5969 | if (peer_group_active(peer)) { |
e7103a96 PM |
5970 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
5971 | filter[afi][safi].aslist[direct].name, | |
5972 | MTYPE_BGP_FILTER_NAME); | |
5973 | PEER_ATTR_INHERIT(peer, peer->group, | |
70ee29b4 PM |
5974 | filter[afi][safi].aslist[direct].aslist); |
5975 | } else { | |
5976 | /* Otherwise remove configuration from peer. */ | |
5977 | filter = &peer->filter[afi][safi]; | |
5978 | if (filter->aslist[direct].name) | |
5979 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5980 | filter->aslist[direct].name); | |
5981 | filter->aslist[direct].name = NULL; | |
5982 | filter->aslist[direct].aslist = NULL; | |
d62a17ae | 5983 | } |
5984 | ||
70ee29b4 | 5985 | /* Check if handling a regular peer. */ |
d62a17ae | 5986 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 5987 | /* Process peer route updates. */ |
d62a17ae | 5988 | peer_on_policy_change(peer, afi, safi, |
5989 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
5990 | |
5991 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5992 | return 0; |
5993 | } | |
5994 | ||
70ee29b4 PM |
5995 | /* |
5996 | * Remove configuration on all peer-group members, unless they are | |
5997 | * explicitely overriding peer-group configuration. | |
5998 | */ | |
5999 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6000 | /* Skip peers with overridden configuration. */ | |
6001 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
6002 | PEER_FT_FILTER_LIST)) | |
6003 | continue; | |
d62a17ae | 6004 | |
70ee29b4 PM |
6005 | /* Remove configuration on peer-group member. */ |
6006 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6007 | if (filter->aslist[direct].name) |
6008 | XFREE(MTYPE_BGP_FILTER_NAME, | |
6009 | filter->aslist[direct].name); | |
6010 | filter->aslist[direct].name = NULL; | |
6011 | filter->aslist[direct].aslist = NULL; | |
70ee29b4 PM |
6012 | |
6013 | /* Process peer route updates. */ | |
6014 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 6015 | (direct == FILTER_OUT) ? 1 : 0); |
6016 | } | |
6017 | ||
6018 | return 0; | |
6019 | } | |
6020 | ||
6021 | static void peer_aslist_update(const char *aslist_name) | |
6022 | { | |
6023 | afi_t afi; | |
6024 | safi_t safi; | |
6025 | int direct; | |
6026 | struct listnode *mnode, *mnnode; | |
6027 | struct listnode *node, *nnode; | |
6028 | struct bgp *bgp; | |
6029 | struct peer *peer; | |
6030 | struct peer_group *group; | |
6031 | struct bgp_filter *filter; | |
6032 | ||
6033 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
6034 | update_group_policy_update(bgp, BGP_POLICY_FILTER_LIST, | |
6035 | aslist_name, 0, 0); | |
6036 | ||
6037 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
05c7a1cc QY |
6038 | FOREACH_AFI_SAFI (afi, safi) { |
6039 | filter = &peer->filter[afi][safi]; | |
6040 | ||
6041 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
6042 | direct++) { | |
6043 | if (filter->aslist[direct].name) | |
6044 | filter->aslist[direct] | |
6045 | .aslist = as_list_lookup( | |
d62a17ae | 6046 | filter->aslist[direct] |
05c7a1cc QY |
6047 | .name); |
6048 | else | |
6049 | filter->aslist[direct].aslist = | |
6050 | NULL; | |
d62a17ae | 6051 | } |
05c7a1cc | 6052 | } |
d62a17ae | 6053 | } |
6054 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
05c7a1cc QY |
6055 | FOREACH_AFI_SAFI (afi, safi) { |
6056 | filter = &group->conf->filter[afi][safi]; | |
6057 | ||
6058 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
6059 | direct++) { | |
6060 | if (filter->aslist[direct].name) | |
6061 | filter->aslist[direct] | |
6062 | .aslist = as_list_lookup( | |
d62a17ae | 6063 | filter->aslist[direct] |
05c7a1cc QY |
6064 | .name); |
6065 | else | |
6066 | filter->aslist[direct].aslist = | |
6067 | NULL; | |
d62a17ae | 6068 | } |
05c7a1cc | 6069 | } |
d62a17ae | 6070 | } |
6071 | } | |
6072 | } | |
6073 | ||
6074 | static void peer_aslist_add(char *aslist_name) | |
6075 | { | |
6076 | peer_aslist_update(aslist_name); | |
6077 | route_map_notify_dependencies((char *)aslist_name, | |
6078 | RMAP_EVENT_ASLIST_ADDED); | |
6079 | } | |
6080 | ||
6081 | static void peer_aslist_del(const char *aslist_name) | |
6082 | { | |
6083 | peer_aslist_update(aslist_name); | |
6084 | route_map_notify_dependencies(aslist_name, RMAP_EVENT_ASLIST_DELETED); | |
6085 | } | |
6086 | ||
6087 | ||
6088 | int peer_route_map_set(struct peer *peer, afi_t afi, safi_t safi, int direct, | |
6089 | const char *name) | |
6090 | { | |
70ee29b4 | 6091 | struct peer *member; |
d62a17ae | 6092 | struct bgp_filter *filter; |
d62a17ae | 6093 | struct listnode *node, *nnode; |
6094 | ||
6095 | if (direct != RMAP_IN && direct != RMAP_OUT) | |
6096 | return BGP_ERR_INVALID_VALUE; | |
6097 | ||
70ee29b4 | 6098 | /* Set configuration on peer. */ |
d62a17ae | 6099 | filter = &peer->filter[afi][safi]; |
d62a17ae | 6100 | if (filter->map[direct].name) |
6101 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); | |
d62a17ae | 6102 | filter->map[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); |
6103 | filter->map[direct].map = route_map_lookup_by_name(name); | |
6104 | ||
70ee29b4 | 6105 | /* Check if handling a regular peer. */ |
d62a17ae | 6106 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
6107 | /* Set override-flag and process peer route updates. */ |
6108 | SET_FLAG(peer->filter_override[afi][safi][direct], | |
6109 | PEER_FT_ROUTE_MAP); | |
d62a17ae | 6110 | peer_on_policy_change(peer, afi, safi, |
6111 | (direct == RMAP_OUT) ? 1 : 0); | |
70ee29b4 PM |
6112 | |
6113 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6114 | return 0; |
6115 | } | |
6116 | ||
70ee29b4 PM |
6117 | /* |
6118 | * Set configuration on all peer-group members, unless they are | |
6119 | * explicitely overriding peer-group configuration. | |
6120 | */ | |
6121 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6122 | /* Skip peers with overridden configuration. */ | |
6123 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
6124 | PEER_FT_ROUTE_MAP)) | |
6125 | continue; | |
d62a17ae | 6126 | |
70ee29b4 PM |
6127 | /* Set configuration on peer-group member. */ |
6128 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6129 | if (filter->map[direct].name) |
6130 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); | |
6131 | filter->map[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
6132 | filter->map[direct].map = route_map_lookup_by_name(name); | |
70ee29b4 PM |
6133 | |
6134 | /* Process peer route updates. */ | |
6135 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 6136 | (direct == RMAP_OUT) ? 1 : 0); |
6137 | } | |
6138 | return 0; | |
6139 | } | |
6140 | ||
6141 | /* Unset route-map from the peer. */ | |
6142 | int peer_route_map_unset(struct peer *peer, afi_t afi, safi_t safi, int direct) | |
6143 | { | |
70ee29b4 | 6144 | struct peer *member; |
d62a17ae | 6145 | struct bgp_filter *filter; |
d62a17ae | 6146 | struct listnode *node, *nnode; |
6147 | ||
6148 | if (direct != RMAP_IN && direct != RMAP_OUT) | |
6149 | return BGP_ERR_INVALID_VALUE; | |
6150 | ||
70ee29b4 PM |
6151 | /* Unset override-flag unconditionally. */ |
6152 | UNSET_FLAG(peer->filter_override[afi][safi][direct], PEER_FT_ROUTE_MAP); | |
d62a17ae | 6153 | |
70ee29b4 | 6154 | /* Inherit configuration from peer-group if peer is member. */ |
d62a17ae | 6155 | if (peer_group_active(peer)) { |
e7103a96 PM |
6156 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
6157 | filter[afi][safi].map[direct].name, | |
6158 | MTYPE_BGP_FILTER_NAME); | |
6159 | PEER_ATTR_INHERIT(peer, peer->group, | |
6160 | filter[afi][safi].map[direct].map); | |
70ee29b4 PM |
6161 | } else { |
6162 | /* Otherwise remove configuration from peer. */ | |
6163 | filter = &peer->filter[afi][safi]; | |
6164 | if (filter->map[direct].name) | |
6165 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); | |
6166 | filter->map[direct].name = NULL; | |
6167 | filter->map[direct].map = NULL; | |
d62a17ae | 6168 | } |
6169 | ||
70ee29b4 | 6170 | /* Check if handling a regular peer. */ |
d62a17ae | 6171 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 6172 | /* Process peer route updates. */ |
d62a17ae | 6173 | peer_on_policy_change(peer, afi, safi, |
6174 | (direct == RMAP_OUT) ? 1 : 0); | |
70ee29b4 PM |
6175 | |
6176 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6177 | return 0; |
6178 | } | |
6179 | ||
70ee29b4 PM |
6180 | /* |
6181 | * Remove configuration on all peer-group members, unless they are | |
6182 | * explicitely overriding peer-group configuration. | |
6183 | */ | |
6184 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6185 | /* Skip peers with overridden configuration. */ | |
6186 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
6187 | PEER_FT_ROUTE_MAP)) | |
6188 | continue; | |
d62a17ae | 6189 | |
70ee29b4 PM |
6190 | /* Remove configuration on peer-group member. */ |
6191 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6192 | if (filter->map[direct].name) |
6193 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); | |
6194 | filter->map[direct].name = NULL; | |
6195 | filter->map[direct].map = NULL; | |
70ee29b4 PM |
6196 | |
6197 | /* Process peer route updates. */ | |
6198 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 6199 | (direct == RMAP_OUT) ? 1 : 0); |
6200 | } | |
70ee29b4 | 6201 | |
d62a17ae | 6202 | return 0; |
6203 | } | |
6204 | ||
6205 | /* Set unsuppress-map to the peer. */ | |
6206 | int peer_unsuppress_map_set(struct peer *peer, afi_t afi, safi_t safi, | |
6207 | const char *name) | |
6208 | { | |
70ee29b4 | 6209 | struct peer *member; |
d62a17ae | 6210 | struct bgp_filter *filter; |
d62a17ae | 6211 | struct listnode *node, *nnode; |
6212 | ||
70ee29b4 | 6213 | /* Set configuration on peer. */ |
d62a17ae | 6214 | filter = &peer->filter[afi][safi]; |
d62a17ae | 6215 | if (filter->usmap.name) |
6216 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
d62a17ae | 6217 | filter->usmap.name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); |
6218 | filter->usmap.map = route_map_lookup_by_name(name); | |
6219 | ||
70ee29b4 | 6220 | /* Check if handling a regular peer. */ |
d62a17ae | 6221 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
6222 | /* Set override-flag and process peer route updates. */ |
6223 | SET_FLAG(peer->filter_override[afi][safi][0], | |
6224 | PEER_FT_UNSUPPRESS_MAP); | |
d62a17ae | 6225 | peer_on_policy_change(peer, afi, safi, 1); |
70ee29b4 PM |
6226 | |
6227 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6228 | return 0; |
6229 | } | |
6230 | ||
70ee29b4 PM |
6231 | /* |
6232 | * Set configuration on all peer-group members, unless they are | |
6233 | * explicitely overriding peer-group configuration. | |
6234 | */ | |
6235 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6236 | /* Skip peers with overridden configuration. */ | |
246bb5f0 | 6237 | if (CHECK_FLAG(member->filter_override[afi][safi][0], |
70ee29b4 PM |
6238 | PEER_FT_UNSUPPRESS_MAP)) |
6239 | continue; | |
d62a17ae | 6240 | |
70ee29b4 PM |
6241 | /* Set configuration on peer-group member. */ |
6242 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6243 | if (filter->usmap.name) |
6244 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
6245 | filter->usmap.name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
6246 | filter->usmap.map = route_map_lookup_by_name(name); | |
70ee29b4 PM |
6247 | |
6248 | /* Process peer route updates. */ | |
6249 | peer_on_policy_change(member, afi, safi, 1); | |
d62a17ae | 6250 | } |
70ee29b4 | 6251 | |
d62a17ae | 6252 | return 0; |
6253 | } | |
6254 | ||
6255 | /* Unset route-map from the peer. */ | |
6256 | int peer_unsuppress_map_unset(struct peer *peer, afi_t afi, safi_t safi) | |
718e3744 | 6257 | { |
70ee29b4 | 6258 | struct peer *member; |
d62a17ae | 6259 | struct bgp_filter *filter; |
d62a17ae | 6260 | struct listnode *node, *nnode; |
6261 | ||
70ee29b4 PM |
6262 | /* Unset override-flag unconditionally. */ |
6263 | UNSET_FLAG(peer->filter_override[afi][safi][0], PEER_FT_UNSUPPRESS_MAP); | |
718e3744 | 6264 | |
70ee29b4 PM |
6265 | /* Inherit configuration from peer-group if peer is member. */ |
6266 | if (peer_group_active(peer)) { | |
e7103a96 PM |
6267 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
6268 | filter[afi][safi].usmap.name, | |
6269 | MTYPE_BGP_FILTER_NAME); | |
6270 | PEER_ATTR_INHERIT(peer, peer->group, | |
6271 | filter[afi][safi].usmap.map); | |
70ee29b4 PM |
6272 | } else { |
6273 | /* Otherwise remove configuration from peer. */ | |
6274 | filter = &peer->filter[afi][safi]; | |
6275 | if (filter->usmap.name) | |
6276 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
6277 | filter->usmap.name = NULL; | |
6278 | filter->usmap.map = NULL; | |
6279 | } | |
718e3744 | 6280 | |
70ee29b4 | 6281 | /* Check if handling a regular peer. */ |
d62a17ae | 6282 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 6283 | /* Process peer route updates. */ |
d62a17ae | 6284 | peer_on_policy_change(peer, afi, safi, 1); |
70ee29b4 PM |
6285 | |
6286 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6287 | return 0; |
6288 | } | |
718e3744 | 6289 | |
70ee29b4 PM |
6290 | /* |
6291 | * Remove configuration on all peer-group members, unless they are | |
6292 | * explicitely overriding peer-group configuration. | |
6293 | */ | |
6294 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6295 | /* Skip peers with overridden configuration. */ | |
6296 | if (CHECK_FLAG(member->filter_override[afi][safi][0], | |
6297 | PEER_FT_UNSUPPRESS_MAP)) | |
6298 | continue; | |
718e3744 | 6299 | |
70ee29b4 PM |
6300 | /* Remove configuration on peer-group member. */ |
6301 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6302 | if (filter->usmap.name) |
6303 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
6304 | filter->usmap.name = NULL; | |
6305 | filter->usmap.map = NULL; | |
70ee29b4 PM |
6306 | |
6307 | /* Process peer route updates. */ | |
6308 | peer_on_policy_change(member, afi, safi, 1); | |
d62a17ae | 6309 | } |
70ee29b4 | 6310 | |
d62a17ae | 6311 | return 0; |
6312 | } | |
718e3744 | 6313 | |
d62a17ae | 6314 | int peer_maximum_prefix_set(struct peer *peer, afi_t afi, safi_t safi, |
d7c0a89a QY |
6315 | uint32_t max, uint8_t threshold, int warning, |
6316 | uint16_t restart) | |
d62a17ae | 6317 | { |
598ce6bd | 6318 | struct peer *member; |
d62a17ae | 6319 | struct listnode *node, *nnode; |
6320 | ||
598ce6bd PM |
6321 | /* Set flags and configuration on peer. */ |
6322 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_MAX_PREFIX); | |
d62a17ae | 6323 | if (warning) |
598ce6bd | 6324 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_MAX_PREFIX_WARNING); |
d62a17ae | 6325 | else |
598ce6bd PM |
6326 | peer_af_flag_unset(peer, afi, safi, |
6327 | PEER_FLAG_MAX_PREFIX_WARNING); | |
6328 | ||
04e1c5bb QY |
6329 | peer->pmax[afi][safi] = max; |
6330 | peer->pmax_threshold[afi][safi] = threshold; | |
6331 | peer->pmax_restart[afi][safi] = restart; | |
d62a17ae | 6332 | |
598ce6bd PM |
6333 | /* Check if handling a regular peer. */ |
6334 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
6335 | /* Re-check if peer violates maximum-prefix. */ | |
d62a17ae | 6336 | if ((peer->status == Established) && (peer->afc[afi][safi])) |
6337 | bgp_maximum_prefix_overflow(peer, afi, safi, 1); | |
04e1c5bb | 6338 | |
598ce6bd PM |
6339 | /* Skip peer-group mechanics for regular peers. */ |
6340 | return 0; | |
6341 | } | |
04e1c5bb | 6342 | |
598ce6bd PM |
6343 | /* |
6344 | * Set flags and configuration on all peer-group members, unless they | |
6345 | * are explicitely overriding peer-group configuration. | |
6346 | */ | |
6347 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6348 | /* Skip peers with overridden configuration. */ | |
6349 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
6350 | PEER_FLAG_MAX_PREFIX)) | |
6351 | continue; | |
04e1c5bb | 6352 | |
598ce6bd PM |
6353 | /* Set flag and configuration on peer-group member. */ |
6354 | member->pmax[afi][safi] = max; | |
6355 | member->pmax_threshold[afi][safi] = threshold; | |
6356 | member->pmax_restart[afi][safi] = restart; | |
04e1c5bb | 6357 | if (warning) |
598ce6bd | 6358 | SET_FLAG(member->af_flags[afi][safi], |
04e1c5bb QY |
6359 | PEER_FLAG_MAX_PREFIX_WARNING); |
6360 | else | |
598ce6bd | 6361 | UNSET_FLAG(member->af_flags[afi][safi], |
04e1c5bb | 6362 | PEER_FLAG_MAX_PREFIX_WARNING); |
598ce6bd PM |
6363 | |
6364 | /* Re-check if peer violates maximum-prefix. */ | |
6365 | if ((member->status == Established) && (member->afc[afi][safi])) | |
6366 | bgp_maximum_prefix_overflow(member, afi, safi, 1); | |
d62a17ae | 6367 | } |
718e3744 | 6368 | |
d62a17ae | 6369 | return 0; |
6370 | } | |
718e3744 | 6371 | |
d62a17ae | 6372 | int peer_maximum_prefix_unset(struct peer *peer, afi_t afi, safi_t safi) |
6373 | { | |
598ce6bd | 6374 | struct peer *member; |
d62a17ae | 6375 | struct listnode *node, *nnode; |
6376 | ||
598ce6bd PM |
6377 | /* Inherit configuration from peer-group if peer is member. */ |
6378 | if (peer_group_active(peer)) { | |
6379 | peer_af_flag_inherit(peer, afi, safi, PEER_FLAG_MAX_PREFIX); | |
6380 | peer_af_flag_inherit(peer, afi, safi, | |
6381 | PEER_FLAG_MAX_PREFIX_WARNING); | |
e7103a96 PM |
6382 | PEER_ATTR_INHERIT(peer, peer->group, pmax[afi][safi]); |
6383 | PEER_ATTR_INHERIT(peer, peer->group, pmax_threshold[afi][safi]); | |
6384 | PEER_ATTR_INHERIT(peer, peer->group, pmax_restart[afi][safi]); | |
04e1c5bb | 6385 | |
d62a17ae | 6386 | return 0; |
04e1c5bb | 6387 | } |
d62a17ae | 6388 | |
598ce6bd PM |
6389 | /* Remove flags and configuration from peer. */ |
6390 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_MAX_PREFIX); | |
6391 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_MAX_PREFIX_WARNING); | |
6392 | peer->pmax[afi][safi] = 0; | |
6393 | peer->pmax_threshold[afi][safi] = 0; | |
6394 | peer->pmax_restart[afi][safi] = 0; | |
6395 | ||
04e1c5bb | 6396 | /* |
598ce6bd PM |
6397 | * Remove flags and configuration from all peer-group members, unless |
6398 | * they are explicitely overriding peer-group configuration. | |
04e1c5bb | 6399 | */ |
598ce6bd PM |
6400 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { |
6401 | /* Skip peers with overridden configuration. */ | |
6402 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
6403 | PEER_FLAG_MAX_PREFIX)) | |
6404 | continue; | |
6405 | ||
6406 | /* Remove flag and configuration on peer-group member. */ | |
6407 | UNSET_FLAG(member->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX); | |
6408 | UNSET_FLAG(member->af_flags[afi][safi], | |
6409 | PEER_FLAG_MAX_PREFIX_WARNING); | |
6410 | member->pmax[afi][safi] = 0; | |
6411 | member->pmax_threshold[afi][safi] = 0; | |
6412 | member->pmax_restart[afi][safi] = 0; | |
d62a17ae | 6413 | } |
598ce6bd | 6414 | |
d62a17ae | 6415 | return 0; |
718e3744 | 6416 | } |
6417 | ||
d62a17ae | 6418 | int is_ebgp_multihop_configured(struct peer *peer) |
718e3744 | 6419 | { |
d62a17ae | 6420 | struct peer_group *group; |
6421 | struct listnode *node, *nnode; | |
6422 | struct peer *peer1; | |
718e3744 | 6423 | |
d62a17ae | 6424 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
6425 | group = peer->group; | |
6426 | if ((peer_sort(peer) != BGP_PEER_IBGP) | |
6427 | && (group->conf->ttl != 1)) | |
6428 | return 1; | |
718e3744 | 6429 | |
d62a17ae | 6430 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer1)) { |
6431 | if ((peer_sort(peer1) != BGP_PEER_IBGP) | |
6432 | && (peer1->ttl != 1)) | |
6433 | return 1; | |
6434 | } | |
6435 | } else { | |
6436 | if ((peer_sort(peer) != BGP_PEER_IBGP) && (peer->ttl != 1)) | |
6437 | return 1; | |
6438 | } | |
6439 | return 0; | |
6440 | } | |
718e3744 | 6441 | |
d62a17ae | 6442 | /* Set # of hops between us and BGP peer. */ |
6443 | int peer_ttl_security_hops_set(struct peer *peer, int gtsm_hops) | |
6444 | { | |
6445 | struct peer_group *group; | |
6446 | struct listnode *node, *nnode; | |
6447 | int ret; | |
6448 | ||
6449 | zlog_debug("peer_ttl_security_hops_set: set gtsm_hops to %d for %s", | |
6450 | gtsm_hops, peer->host); | |
6451 | ||
6452 | /* We cannot configure ttl-security hops when ebgp-multihop is already | |
6453 | set. For non peer-groups, the check is simple. For peer-groups, | |
6454 | it's | |
6455 | slightly messy, because we need to check both the peer-group | |
6456 | structure | |
6457 | and all peer-group members for any trace of ebgp-multihop | |
6458 | configuration | |
6459 | before actually applying the ttl-security rules. Cisco really made a | |
6460 | mess of this configuration parameter, and OpenBGPD got it right. | |
6461 | */ | |
6462 | ||
6463 | if ((peer->gtsm_hops == 0) && (peer->sort != BGP_PEER_IBGP)) { | |
6464 | if (is_ebgp_multihop_configured(peer)) | |
6465 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
6466 | ||
6467 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
6468 | peer->gtsm_hops = gtsm_hops; | |
6469 | ||
6470 | /* Calling ebgp multihop also resets the session. | |
6471 | * On restart, NHT will get setup correctly as will the | |
6472 | * min & max ttls on the socket. The return value is | |
6473 | * irrelevant. | |
6474 | */ | |
6475 | ret = peer_ebgp_multihop_set(peer, MAXTTL); | |
6476 | ||
6477 | if (ret != 0) | |
6478 | return ret; | |
6479 | } else { | |
6480 | group = peer->group; | |
6481 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, | |
6482 | peer)) { | |
6483 | peer->gtsm_hops = group->conf->gtsm_hops; | |
6484 | ||
6485 | /* Calling ebgp multihop also resets the | |
6486 | * session. | |
6487 | * On restart, NHT will get setup correctly as | |
6488 | * will the | |
6489 | * min & max ttls on the socket. The return | |
6490 | * value is | |
6491 | * irrelevant. | |
6492 | */ | |
6493 | peer_ebgp_multihop_set(peer, MAXTTL); | |
6494 | } | |
6495 | } | |
6496 | } else { | |
6497 | /* Post the first gtsm setup or if its ibgp, maxttl setting | |
6498 | * isn't | |
6499 | * necessary, just set the minttl. | |
6500 | */ | |
6501 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
6502 | peer->gtsm_hops = gtsm_hops; | |
6503 | ||
6504 | if (peer->fd >= 0) | |
6505 | sockopt_minttl(peer->su.sa.sa_family, peer->fd, | |
6506 | MAXTTL + 1 - gtsm_hops); | |
6507 | if ((peer->status < Established) && peer->doppelganger | |
6508 | && (peer->doppelganger->fd >= 0)) | |
6509 | sockopt_minttl(peer->su.sa.sa_family, | |
6510 | peer->doppelganger->fd, | |
6511 | MAXTTL + 1 - gtsm_hops); | |
6512 | } else { | |
6513 | group = peer->group; | |
6514 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, | |
6515 | peer)) { | |
6516 | peer->gtsm_hops = group->conf->gtsm_hops; | |
6517 | ||
6518 | /* Change setting of existing peer | |
6519 | * established then change value (may break | |
6520 | * connectivity) | |
6521 | * not established yet (teardown session and | |
6522 | * restart) | |
6523 | * no session then do nothing (will get | |
6524 | * handled by next connection) | |
6525 | */ | |
6526 | if (peer->fd >= 0 && peer->gtsm_hops != 0) | |
6527 | sockopt_minttl( | |
6528 | peer->su.sa.sa_family, peer->fd, | |
6529 | MAXTTL + 1 - peer->gtsm_hops); | |
6530 | if ((peer->status < Established) | |
6531 | && peer->doppelganger | |
6532 | && (peer->doppelganger->fd >= 0)) | |
6533 | sockopt_minttl(peer->su.sa.sa_family, | |
6534 | peer->doppelganger->fd, | |
6535 | MAXTTL + 1 - gtsm_hops); | |
6536 | } | |
6537 | } | |
6538 | } | |
718e3744 | 6539 | |
d62a17ae | 6540 | return 0; |
718e3744 | 6541 | } |
6542 | ||
d62a17ae | 6543 | int peer_ttl_security_hops_unset(struct peer *peer) |
6544 | { | |
6545 | struct peer_group *group; | |
6546 | struct listnode *node, *nnode; | |
6547 | int ret = 0; | |
6548 | ||
6549 | zlog_debug("peer_ttl_security_hops_unset: set gtsm_hops to zero for %s", | |
6550 | peer->host); | |
6551 | ||
6552 | /* if a peer-group member, then reset to peer-group default rather than | |
6553 | * 0 */ | |
6554 | if (peer_group_active(peer)) | |
6555 | peer->gtsm_hops = peer->group->conf->gtsm_hops; | |
6556 | else | |
6557 | peer->gtsm_hops = 0; | |
6558 | ||
6559 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
6560 | /* Invoking ebgp_multihop_set will set the TTL back to the | |
6561 | * original | |
6562 | * value as well as restting the NHT and such. The session is | |
6563 | * reset. | |
6564 | */ | |
6565 | if (peer->sort == BGP_PEER_EBGP) | |
6566 | ret = peer_ebgp_multihop_unset(peer); | |
6567 | else { | |
6568 | if (peer->fd >= 0) | |
6569 | sockopt_minttl(peer->su.sa.sa_family, peer->fd, | |
6570 | 0); | |
6571 | ||
6572 | if ((peer->status < Established) && peer->doppelganger | |
6573 | && (peer->doppelganger->fd >= 0)) | |
6574 | sockopt_minttl(peer->su.sa.sa_family, | |
6575 | peer->doppelganger->fd, 0); | |
6576 | } | |
6577 | } else { | |
6578 | group = peer->group; | |
6579 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
6580 | peer->gtsm_hops = 0; | |
6581 | if (peer->sort == BGP_PEER_EBGP) | |
6582 | ret = peer_ebgp_multihop_unset(peer); | |
6583 | else { | |
6584 | if (peer->fd >= 0) | |
6585 | sockopt_minttl(peer->su.sa.sa_family, | |
6586 | peer->fd, 0); | |
6587 | ||
6588 | if ((peer->status < Established) | |
6589 | && peer->doppelganger | |
6590 | && (peer->doppelganger->fd >= 0)) | |
6591 | sockopt_minttl(peer->su.sa.sa_family, | |
6592 | peer->doppelganger->fd, | |
6593 | 0); | |
6594 | } | |
6595 | } | |
6596 | } | |
718e3744 | 6597 | |
d62a17ae | 6598 | return ret; |
6599 | } | |
6600 | ||
6601 | /* | |
6602 | * If peer clear is invoked in a loop for all peers on the BGP instance, | |
6603 | * it may end up freeing the doppelganger, and if this was the next node | |
6604 | * to the current node, we would end up accessing the freed next node. | |
6605 | * Pass along additional parameter which can be updated if next node | |
6606 | * is freed; only required when walking the peer list on BGP instance. | |
6607 | */ | |
6608 | int peer_clear(struct peer *peer, struct listnode **nnode) | |
6609 | { | |
6610 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_SHUTDOWN)) { | |
6611 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_PREFIX_OVERFLOW)) { | |
6612 | UNSET_FLAG(peer->sflags, PEER_STATUS_PREFIX_OVERFLOW); | |
6613 | if (peer->t_pmax_restart) { | |
6614 | BGP_TIMER_OFF(peer->t_pmax_restart); | |
6615 | if (bgp_debug_neighbor_events(peer)) | |
6616 | zlog_debug( | |
6617 | "%s Maximum-prefix restart timer canceled", | |
6618 | peer->host); | |
6619 | } | |
6620 | BGP_EVENT_ADD(peer, BGP_Start); | |
6621 | return 0; | |
6622 | } | |
6623 | ||
6624 | peer->v_start = BGP_INIT_START_TIMER; | |
6625 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
6626 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
6627 | BGP_NOTIFY_CEASE_ADMIN_RESET); | |
6628 | else | |
6629 | bgp_session_reset_safe(peer, nnode); | |
718e3744 | 6630 | } |
d62a17ae | 6631 | return 0; |
718e3744 | 6632 | } |
6b0655a2 | 6633 | |
d62a17ae | 6634 | int peer_clear_soft(struct peer *peer, afi_t afi, safi_t safi, |
6635 | enum bgp_clear_type stype) | |
718e3744 | 6636 | { |
d62a17ae | 6637 | struct peer_af *paf; |
718e3744 | 6638 | |
d62a17ae | 6639 | if (peer->status != Established) |
6640 | return 0; | |
718e3744 | 6641 | |
d62a17ae | 6642 | if (!peer->afc[afi][safi]) |
6643 | return BGP_ERR_AF_UNCONFIGURED; | |
718e3744 | 6644 | |
d62a17ae | 6645 | peer->rtt = sockopt_tcp_rtt(peer->fd); |
718e3744 | 6646 | |
d62a17ae | 6647 | if (stype == BGP_CLEAR_SOFT_OUT || stype == BGP_CLEAR_SOFT_BOTH) { |
6648 | /* Clear the "neighbor x.x.x.x default-originate" flag */ | |
6649 | paf = peer_af_find(peer, afi, safi); | |
6650 | if (paf && paf->subgroup | |
6651 | && CHECK_FLAG(paf->subgroup->sflags, | |
6652 | SUBGRP_STATUS_DEFAULT_ORIGINATE)) | |
6653 | UNSET_FLAG(paf->subgroup->sflags, | |
6654 | SUBGRP_STATUS_DEFAULT_ORIGINATE); | |
718e3744 | 6655 | |
d62a17ae | 6656 | bgp_announce_route(peer, afi, safi); |
6657 | } | |
718e3744 | 6658 | |
d62a17ae | 6659 | if (stype == BGP_CLEAR_SOFT_IN_ORF_PREFIX) { |
6660 | if (CHECK_FLAG(peer->af_cap[afi][safi], | |
6661 | PEER_CAP_ORF_PREFIX_SM_ADV) | |
6662 | && (CHECK_FLAG(peer->af_cap[afi][safi], | |
6663 | PEER_CAP_ORF_PREFIX_RM_RCV) | |
6664 | || CHECK_FLAG(peer->af_cap[afi][safi], | |
6665 | PEER_CAP_ORF_PREFIX_RM_OLD_RCV))) { | |
6666 | struct bgp_filter *filter = &peer->filter[afi][safi]; | |
d7c0a89a | 6667 | uint8_t prefix_type; |
d62a17ae | 6668 | |
6669 | if (CHECK_FLAG(peer->af_cap[afi][safi], | |
6670 | PEER_CAP_ORF_PREFIX_RM_RCV)) | |
6671 | prefix_type = ORF_TYPE_PREFIX; | |
6672 | else | |
6673 | prefix_type = ORF_TYPE_PREFIX_OLD; | |
6674 | ||
6675 | if (filter->plist[FILTER_IN].plist) { | |
6676 | if (CHECK_FLAG(peer->af_sflags[afi][safi], | |
6677 | PEER_STATUS_ORF_PREFIX_SEND)) | |
6678 | bgp_route_refresh_send( | |
6679 | peer, afi, safi, prefix_type, | |
6680 | REFRESH_DEFER, 1); | |
6681 | bgp_route_refresh_send(peer, afi, safi, | |
6682 | prefix_type, | |
6683 | REFRESH_IMMEDIATE, 0); | |
6684 | } else { | |
6685 | if (CHECK_FLAG(peer->af_sflags[afi][safi], | |
6686 | PEER_STATUS_ORF_PREFIX_SEND)) | |
6687 | bgp_route_refresh_send( | |
6688 | peer, afi, safi, prefix_type, | |
6689 | REFRESH_IMMEDIATE, 1); | |
6690 | else | |
6691 | bgp_route_refresh_send(peer, afi, safi, | |
6692 | 0, 0, 0); | |
6693 | } | |
6694 | return 0; | |
6695 | } | |
6696 | } | |
718e3744 | 6697 | |
d62a17ae | 6698 | if (stype == BGP_CLEAR_SOFT_IN || stype == BGP_CLEAR_SOFT_BOTH |
6699 | || stype == BGP_CLEAR_SOFT_IN_ORF_PREFIX) { | |
6700 | /* If neighbor has soft reconfiguration inbound flag. | |
6701 | Use Adj-RIB-In database. */ | |
6702 | if (CHECK_FLAG(peer->af_flags[afi][safi], | |
6703 | PEER_FLAG_SOFT_RECONFIG)) | |
6704 | bgp_soft_reconfig_in(peer, afi, safi); | |
6705 | else { | |
6706 | /* If neighbor has route refresh capability, send route | |
6707 | refresh | |
6708 | message to the peer. */ | |
6709 | if (CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_OLD_RCV) | |
6710 | || CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_NEW_RCV)) | |
6711 | bgp_route_refresh_send(peer, afi, safi, 0, 0, | |
6712 | 0); | |
6713 | else | |
6714 | return BGP_ERR_SOFT_RECONFIG_UNCONFIGURED; | |
6715 | } | |
6716 | } | |
6717 | return 0; | |
718e3744 | 6718 | } |
6719 | ||
d62a17ae | 6720 | /* Display peer uptime.*/ |
d7c0a89a | 6721 | char *peer_uptime(time_t uptime2, char *buf, size_t len, uint8_t use_json, |
d62a17ae | 6722 | json_object *json) |
6723 | { | |
6724 | time_t uptime1, epoch_tbuf; | |
6725 | struct tm *tm; | |
6726 | ||
6727 | /* Check buffer length. */ | |
6728 | if (len < BGP_UPTIME_LEN) { | |
6729 | if (!use_json) { | |
6730 | zlog_warn("peer_uptime (): buffer shortage %lu", | |
d7c0a89a | 6731 | (unsigned long)len); |
d62a17ae | 6732 | /* XXX: should return status instead of buf... */ |
6733 | snprintf(buf, len, "<error> "); | |
6734 | } | |
6735 | return buf; | |
6736 | } | |
6737 | ||
6738 | /* If there is no connection has been done before print `never'. */ | |
6739 | if (uptime2 == 0) { | |
6740 | if (use_json) { | |
6741 | json_object_string_add(json, "peerUptime", "never"); | |
6742 | json_object_int_add(json, "peerUptimeMsec", 0); | |
6743 | } else | |
6744 | snprintf(buf, len, "never"); | |
6745 | return buf; | |
6746 | } | |
718e3744 | 6747 | |
d62a17ae | 6748 | /* Get current time. */ |
6749 | uptime1 = bgp_clock(); | |
6750 | uptime1 -= uptime2; | |
6751 | tm = gmtime(&uptime1); | |
718e3744 | 6752 | |
d62a17ae | 6753 | if (uptime1 < ONE_DAY_SECOND) |
6754 | snprintf(buf, len, "%02d:%02d:%02d", tm->tm_hour, tm->tm_min, | |
6755 | tm->tm_sec); | |
6756 | else if (uptime1 < ONE_WEEK_SECOND) | |
6757 | snprintf(buf, len, "%dd%02dh%02dm", tm->tm_yday, tm->tm_hour, | |
6758 | tm->tm_min); | |
6759 | else if (uptime1 < ONE_YEAR_SECOND) | |
6760 | snprintf(buf, len, "%02dw%dd%02dh", tm->tm_yday / 7, | |
6761 | tm->tm_yday - ((tm->tm_yday / 7) * 7), tm->tm_hour); | |
6762 | else | |
6763 | snprintf(buf, len, "%02dy%02dw%dd", tm->tm_year - 70, | |
6764 | tm->tm_yday / 7, | |
6765 | tm->tm_yday - ((tm->tm_yday / 7) * 7)); | |
6766 | ||
6767 | if (use_json) { | |
6768 | epoch_tbuf = time(NULL) - uptime1; | |
6769 | json_object_string_add(json, "peerUptime", buf); | |
6770 | json_object_int_add(json, "peerUptimeMsec", uptime1 * 1000); | |
6771 | json_object_int_add(json, "peerUptimeEstablishedEpoch", | |
6772 | epoch_tbuf); | |
6773 | } | |
718e3744 | 6774 | |
d62a17ae | 6775 | return buf; |
718e3744 | 6776 | } |
6777 | ||
d62a17ae | 6778 | static void bgp_config_write_filter(struct vty *vty, struct peer *peer, |
2b791107 | 6779 | afi_t afi, safi_t safi) |
518f0eb1 | 6780 | { |
d62a17ae | 6781 | struct bgp_filter *filter; |
d62a17ae | 6782 | char *addr; |
518f0eb1 | 6783 | |
d62a17ae | 6784 | addr = peer->host; |
6785 | filter = &peer->filter[afi][safi]; | |
518f0eb1 | 6786 | |
d62a17ae | 6787 | /* distribute-list. */ |
70ee29b4 PM |
6788 | if (peergroup_filter_check(peer, afi, safi, PEER_FT_DISTRIBUTE_LIST, |
6789 | FILTER_IN)) | |
6790 | vty_out(vty, " neighbor %s distribute-list %s in\n", addr, | |
6791 | filter->dlist[FILTER_IN].name); | |
6b0655a2 | 6792 | |
70ee29b4 PM |
6793 | if (peergroup_filter_check(peer, afi, safi, PEER_FT_DISTRIBUTE_LIST, |
6794 | FILTER_OUT)) | |
2b791107 | 6795 | vty_out(vty, " neighbor %s distribute-list %s out\n", addr, |
70ee29b4 | 6796 | filter->dlist[FILTER_OUT].name); |
718e3744 | 6797 | |
d62a17ae | 6798 | /* prefix-list. */ |
70ee29b4 PM |
6799 | if (peergroup_filter_check(peer, afi, safi, PEER_FT_PREFIX_LIST, |
6800 | FILTER_IN)) | |
6801 | vty_out(vty, " neighbor %s prefix-list %s in\n", addr, | |
6802 | filter->plist[FILTER_IN].name); | |
718e3744 | 6803 | |
70ee29b4 PM |
6804 | if (peergroup_filter_check(peer, afi, safi, PEER_FT_PREFIX_LIST, |
6805 | FILTER_OUT)) | |
6806 | vty_out(vty, " neighbor %s prefix-list %s out\n", addr, | |
6807 | filter->plist[FILTER_OUT].name); | |
718e3744 | 6808 | |
d62a17ae | 6809 | /* route-map. */ |
70ee29b4 PM |
6810 | if (peergroup_filter_check(peer, afi, safi, PEER_FT_ROUTE_MAP, RMAP_IN)) |
6811 | vty_out(vty, " neighbor %s route-map %s in\n", addr, | |
6812 | filter->map[RMAP_IN].name); | |
518f0eb1 | 6813 | |
70ee29b4 PM |
6814 | if (peergroup_filter_check(peer, afi, safi, PEER_FT_ROUTE_MAP, |
6815 | RMAP_OUT)) | |
6816 | vty_out(vty, " neighbor %s route-map %s out\n", addr, | |
6817 | filter->map[RMAP_OUT].name); | |
718e3744 | 6818 | |
d62a17ae | 6819 | /* unsuppress-map */ |
70ee29b4 | 6820 | if (peergroup_filter_check(peer, afi, safi, PEER_FT_UNSUPPRESS_MAP, 0)) |
2b791107 DL |
6821 | vty_out(vty, " neighbor %s unsuppress-map %s\n", addr, |
6822 | filter->usmap.name); | |
718e3744 | 6823 | |
d62a17ae | 6824 | /* filter-list. */ |
70ee29b4 PM |
6825 | if (peergroup_filter_check(peer, afi, safi, PEER_FT_FILTER_LIST, |
6826 | FILTER_IN)) | |
6827 | vty_out(vty, " neighbor %s filter-list %s in\n", addr, | |
6828 | filter->aslist[FILTER_IN].name); | |
718e3744 | 6829 | |
70ee29b4 PM |
6830 | if (peergroup_filter_check(peer, afi, safi, PEER_FT_FILTER_LIST, |
6831 | FILTER_OUT)) | |
2b791107 | 6832 | vty_out(vty, " neighbor %s filter-list %s out\n", addr, |
70ee29b4 | 6833 | filter->aslist[FILTER_OUT].name); |
718e3744 | 6834 | } |
6835 | ||
d62a17ae | 6836 | /* BGP peer configuration display function. */ |
6837 | static void bgp_config_write_peer_global(struct vty *vty, struct bgp *bgp, | |
6838 | struct peer *peer) | |
6839 | { | |
6840 | struct peer *g_peer = NULL; | |
6841 | char buf[SU_ADDRSTRLEN]; | |
6842 | char *addr; | |
6843 | int if_pg_printed = FALSE; | |
6844 | int if_ras_printed = FALSE; | |
6845 | ||
6846 | /* Skip dynamic neighbors. */ | |
6847 | if (peer_dynamic_neighbor(peer)) | |
6848 | return; | |
6849 | ||
6850 | if (peer->conf_if) | |
6851 | addr = peer->conf_if; | |
6852 | else | |
6853 | addr = peer->host; | |
6854 | ||
6855 | /************************************ | |
6856 | ****** Global to the neighbor ****** | |
6857 | ************************************/ | |
6858 | if (peer->conf_if) { | |
6859 | if (CHECK_FLAG(peer->flags, PEER_FLAG_IFPEER_V6ONLY)) | |
6860 | vty_out(vty, " neighbor %s interface v6only", addr); | |
6861 | else | |
6862 | vty_out(vty, " neighbor %s interface", addr); | |
6863 | ||
6864 | if (peer_group_active(peer)) { | |
6865 | vty_out(vty, " peer-group %s", peer->group->name); | |
6866 | if_pg_printed = TRUE; | |
6867 | } else if (peer->as_type == AS_SPECIFIED) { | |
6868 | vty_out(vty, " remote-as %u", peer->as); | |
6869 | if_ras_printed = TRUE; | |
6870 | } else if (peer->as_type == AS_INTERNAL) { | |
6871 | vty_out(vty, " remote-as internal"); | |
6872 | if_ras_printed = TRUE; | |
6873 | } else if (peer->as_type == AS_EXTERNAL) { | |
6874 | vty_out(vty, " remote-as external"); | |
6875 | if_ras_printed = TRUE; | |
6876 | } | |
718e3744 | 6877 | |
d62a17ae | 6878 | vty_out(vty, "\n"); |
6879 | } | |
718e3744 | 6880 | |
d62a17ae | 6881 | /* remote-as and peer-group */ |
6882 | /* peer is a member of a peer-group */ | |
6883 | if (peer_group_active(peer)) { | |
6884 | g_peer = peer->group->conf; | |
6885 | ||
6886 | if (g_peer->as_type == AS_UNSPECIFIED && !if_ras_printed) { | |
6887 | if (peer->as_type == AS_SPECIFIED) { | |
6888 | vty_out(vty, " neighbor %s remote-as %u\n", | |
6889 | addr, peer->as); | |
6890 | } else if (peer->as_type == AS_INTERNAL) { | |
6891 | vty_out(vty, | |
6892 | " neighbor %s remote-as internal\n", | |
6893 | addr); | |
6894 | } else if (peer->as_type == AS_EXTERNAL) { | |
6895 | vty_out(vty, | |
6896 | " neighbor %s remote-as external\n", | |
6897 | addr); | |
6898 | } | |
6899 | } | |
718e3744 | 6900 | |
d62a17ae | 6901 | /* For swpX peers we displayed the peer-group |
6902 | * via 'neighbor swpX interface peer-group WORD' */ | |
6903 | if (!if_pg_printed) | |
6904 | vty_out(vty, " neighbor %s peer-group %s\n", addr, | |
6905 | peer->group->name); | |
6906 | } | |
718e3744 | 6907 | |
d62a17ae | 6908 | /* peer is NOT a member of a peer-group */ |
6909 | else { | |
6910 | /* peer is a peer-group, declare the peer-group */ | |
6911 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
6912 | vty_out(vty, " neighbor %s peer-group\n", addr); | |
6913 | } | |
6b0655a2 | 6914 | |
d62a17ae | 6915 | if (!if_ras_printed) { |
6916 | if (peer->as_type == AS_SPECIFIED) { | |
6917 | vty_out(vty, " neighbor %s remote-as %u\n", | |
6918 | addr, peer->as); | |
6919 | } else if (peer->as_type == AS_INTERNAL) { | |
6920 | vty_out(vty, | |
6921 | " neighbor %s remote-as internal\n", | |
6922 | addr); | |
6923 | } else if (peer->as_type == AS_EXTERNAL) { | |
6924 | vty_out(vty, | |
6925 | " neighbor %s remote-as external\n", | |
6926 | addr); | |
6927 | } | |
6928 | } | |
6929 | } | |
718e3744 | 6930 | |
d62a17ae | 6931 | /* local-as */ |
6932 | if (peer->change_local_as) { | |
6933 | if (!peer_group_active(peer) | |
6934 | || peer->change_local_as != g_peer->change_local_as | |
9fb964de PM |
6935 | || peergroup_flag_check(peer, PEER_FLAG_LOCAL_AS_NO_PREPEND) |
6936 | || peergroup_flag_check(peer, | |
6937 | PEER_FLAG_LOCAL_AS_REPLACE_AS)) { | |
6938 | vty_out(vty, " neighbor %s local-as %u", addr, | |
6939 | peer->change_local_as); | |
6940 | ||
6941 | if (peergroup_flag_check(peer, | |
6942 | PEER_FLAG_LOCAL_AS_NO_PREPEND)) | |
6943 | vty_out(vty, " no-prepend"); | |
6944 | if (peergroup_flag_check(peer, | |
6945 | PEER_FLAG_LOCAL_AS_REPLACE_AS)) | |
6946 | vty_out(vty, " replace-as"); | |
6947 | ||
6948 | vty_out(vty, "\n"); | |
d62a17ae | 6949 | } |
5f9adb5d | 6950 | } |
5f9adb5d | 6951 | |
d62a17ae | 6952 | /* description */ |
6953 | if (peer->desc) { | |
6954 | vty_out(vty, " neighbor %s description %s\n", addr, peer->desc); | |
6955 | } | |
fa411a21 | 6956 | |
d62a17ae | 6957 | /* shutdown */ |
9fb964de PM |
6958 | if (peergroup_flag_check(peer, PEER_FLAG_SHUTDOWN)) { |
6959 | if (peer->tx_shutdown_message) | |
6960 | vty_out(vty, " neighbor %s shutdown message %s\n", addr, | |
6961 | peer->tx_shutdown_message); | |
6962 | else | |
6963 | vty_out(vty, " neighbor %s shutdown\n", addr); | |
d62a17ae | 6964 | } |
fa411a21 | 6965 | |
d62a17ae | 6966 | /* bfd */ |
6967 | if (peer->bfd_info) { | |
6968 | if (!peer_group_active(peer) || !g_peer->bfd_info) { | |
6969 | bgp_bfd_peer_config_write(vty, peer, addr); | |
6970 | } | |
6971 | } | |
e5cc509c | 6972 | |
d62a17ae | 6973 | /* password */ |
6974 | if (peer->password) { | |
6975 | if (!peer_group_active(peer) || !g_peer->password | |
6976 | || strcmp(peer->password, g_peer->password) != 0) { | |
6977 | vty_out(vty, " neighbor %s password %s\n", addr, | |
6978 | peer->password); | |
6979 | } | |
6980 | } | |
fa411a21 | 6981 | |
d62a17ae | 6982 | /* neighbor solo */ |
6983 | if (CHECK_FLAG(peer->flags, PEER_FLAG_LONESOUL)) { | |
6984 | if (!peer_group_active(peer)) { | |
6985 | vty_out(vty, " neighbor %s solo\n", addr); | |
6986 | } | |
6987 | } | |
fa411a21 | 6988 | |
d62a17ae | 6989 | /* BGP port */ |
6990 | if (peer->port != BGP_PORT_DEFAULT) { | |
6991 | vty_out(vty, " neighbor %s port %d\n", addr, peer->port); | |
6992 | } | |
e5cc509c | 6993 | |
d62a17ae | 6994 | /* Local interface name */ |
6995 | if (peer->ifname) { | |
6996 | vty_out(vty, " neighbor %s interface %s\n", addr, peer->ifname); | |
e5cc509c | 6997 | } |
fa411a21 | 6998 | |
d62a17ae | 6999 | /* passive */ |
9fb964de PM |
7000 | if (peergroup_flag_check(peer, PEER_FLAG_PASSIVE)) |
7001 | vty_out(vty, " neighbor %s passive\n", addr); | |
1ff9a340 | 7002 | |
d62a17ae | 7003 | /* ebgp-multihop */ |
7004 | if (peer->sort != BGP_PEER_IBGP && peer->ttl != 1 | |
7005 | && !(peer->gtsm_hops != 0 && peer->ttl == MAXTTL)) { | |
7006 | if (!peer_group_active(peer) || g_peer->ttl != peer->ttl) { | |
7007 | vty_out(vty, " neighbor %s ebgp-multihop %d\n", addr, | |
7008 | peer->ttl); | |
7009 | } | |
fa411a21 | 7010 | } |
fa411a21 | 7011 | |
d62a17ae | 7012 | /* ttl-security hops */ |
7013 | if (peer->gtsm_hops != 0) { | |
7014 | if (!peer_group_active(peer) | |
7015 | || g_peer->gtsm_hops != peer->gtsm_hops) { | |
7016 | vty_out(vty, " neighbor %s ttl-security hops %d\n", | |
7017 | addr, peer->gtsm_hops); | |
7018 | } | |
7019 | } | |
7020 | ||
7021 | /* disable-connected-check */ | |
9fb964de PM |
7022 | if (peergroup_flag_check(peer, PEER_FLAG_DISABLE_CONNECTED_CHECK)) |
7023 | vty_out(vty, " neighbor %s disable-connected-check\n", addr); | |
d62a17ae | 7024 | |
47cbc09b | 7025 | /* enforce-first-as */ |
9fb964de PM |
7026 | if (peergroup_flag_check(peer, PEER_FLAG_ENFORCE_FIRST_AS)) |
7027 | vty_out(vty, " neighbor %s enforce-first-as\n", addr); | |
47cbc09b | 7028 | |
d62a17ae | 7029 | /* update-source */ |
7030 | if (peer->update_if) { | |
7031 | if (!peer_group_active(peer) || !g_peer->update_if | |
7032 | || strcmp(g_peer->update_if, peer->update_if) != 0) { | |
7033 | vty_out(vty, " neighbor %s update-source %s\n", addr, | |
7034 | peer->update_if); | |
7035 | } | |
7036 | } | |
7037 | if (peer->update_source) { | |
7038 | if (!peer_group_active(peer) || !g_peer->update_source | |
7039 | || sockunion_cmp(g_peer->update_source, peer->update_source) | |
7040 | != 0) { | |
7041 | vty_out(vty, " neighbor %s update-source %s\n", addr, | |
7042 | sockunion2str(peer->update_source, buf, | |
7043 | SU_ADDRSTRLEN)); | |
7044 | } | |
7045 | } | |
7046 | ||
7047 | /* advertisement-interval */ | |
b90a8e13 | 7048 | if (peergroup_flag_check(peer, PEER_FLAG_ROUTEADV)) |
d62a17ae | 7049 | vty_out(vty, " neighbor %s advertisement-interval %u\n", addr, |
b90a8e13 | 7050 | peer->routeadv); |
d62a17ae | 7051 | |
7052 | /* timers */ | |
b90a8e13 | 7053 | if (peergroup_flag_check(peer, PEER_FLAG_TIMER)) |
d62a17ae | 7054 | vty_out(vty, " neighbor %s timers %u %u\n", addr, |
7055 | peer->keepalive, peer->holdtime); | |
d62a17ae | 7056 | |
b90a8e13 PM |
7057 | /* timers connect */ |
7058 | if (peergroup_flag_check(peer, PEER_FLAG_TIMER_CONNECT)) | |
d62a17ae | 7059 | vty_out(vty, " neighbor %s timers connect %u\n", addr, |
7060 | peer->connect); | |
6b0655a2 | 7061 | |
d62a17ae | 7062 | /* capability dynamic */ |
9fb964de PM |
7063 | if (peergroup_flag_check(peer, PEER_FLAG_DYNAMIC_CAPABILITY)) |
7064 | vty_out(vty, " neighbor %s capability dynamic\n", addr); | |
718e3744 | 7065 | |
d62a17ae | 7066 | /* capability extended-nexthop */ |
9fb964de PM |
7067 | if (peergroup_flag_check(peer, PEER_FLAG_CAPABILITY_ENHE)) { |
7068 | if (CHECK_FLAG(peer->flags_invert, PEER_FLAG_CAPABILITY_ENHE)) | |
d62a17ae | 7069 | vty_out(vty, |
7070 | " no neighbor %s capability extended-nexthop\n", | |
7071 | addr); | |
9fb964de | 7072 | else |
d62a17ae | 7073 | vty_out(vty, |
7074 | " neighbor %s capability extended-nexthop\n", | |
7075 | addr); | |
d62a17ae | 7076 | } |
7077 | ||
7078 | /* dont-capability-negotiation */ | |
9fb964de PM |
7079 | if (peergroup_flag_check(peer, PEER_FLAG_DONT_CAPABILITY)) |
7080 | vty_out(vty, " neighbor %s dont-capability-negotiate\n", addr); | |
d62a17ae | 7081 | |
7082 | /* override-capability */ | |
9fb964de PM |
7083 | if (peergroup_flag_check(peer, PEER_FLAG_OVERRIDE_CAPABILITY)) |
7084 | vty_out(vty, " neighbor %s override-capability\n", addr); | |
d62a17ae | 7085 | |
7086 | /* strict-capability-match */ | |
9fb964de PM |
7087 | if (peergroup_flag_check(peer, PEER_FLAG_STRICT_CAP_MATCH)) |
7088 | vty_out(vty, " neighbor %s strict-capability-match\n", addr); | |
0b960b4d DW |
7089 | } |
7090 | ||
0b960b4d | 7091 | /* BGP peer configuration display function. */ |
d62a17ae | 7092 | static void bgp_config_write_peer_af(struct vty *vty, struct bgp *bgp, |
2b791107 | 7093 | struct peer *peer, afi_t afi, safi_t safi) |
d62a17ae | 7094 | { |
7095 | struct peer *g_peer = NULL; | |
7096 | char *addr; | |
27c05d4d | 7097 | bool flag_scomm, flag_secomm, flag_slcomm; |
d62a17ae | 7098 | |
7099 | /* Skip dynamic neighbors. */ | |
7100 | if (peer_dynamic_neighbor(peer)) | |
7101 | return; | |
7102 | ||
7103 | if (peer->conf_if) | |
7104 | addr = peer->conf_if; | |
7105 | else | |
7106 | addr = peer->host; | |
7107 | ||
7108 | /************************************ | |
7109 | ****** Per AF to the neighbor ****** | |
7110 | ************************************/ | |
7111 | if (peer_group_active(peer)) { | |
7112 | g_peer = peer->group->conf; | |
7113 | ||
7114 | /* If the peer-group is active but peer is not, print a 'no | |
7115 | * activate' */ | |
7116 | if (g_peer->afc[afi][safi] && !peer->afc[afi][safi]) { | |
2b791107 | 7117 | vty_out(vty, " no neighbor %s activate\n", addr); |
d62a17ae | 7118 | } |
7119 | ||
7120 | /* If the peer-group is not active but peer is, print an | |
7121 | 'activate' */ | |
7122 | else if (!g_peer->afc[afi][safi] && peer->afc[afi][safi]) { | |
2b791107 | 7123 | vty_out(vty, " neighbor %s activate\n", addr); |
d62a17ae | 7124 | } |
7125 | } else { | |
7126 | if (peer->afc[afi][safi]) { | |
7127 | if ((afi == AFI_IP) && (safi == SAFI_UNICAST)) { | |
7128 | if (bgp_flag_check(bgp, | |
7129 | BGP_FLAG_NO_DEFAULT_IPV4)) { | |
2b791107 | 7130 | vty_out(vty, " neighbor %s activate\n", |
d62a17ae | 7131 | addr); |
7132 | } | |
7133 | } else | |
2b791107 | 7134 | vty_out(vty, " neighbor %s activate\n", addr); |
d62a17ae | 7135 | } else { |
7136 | if ((afi == AFI_IP) && (safi == SAFI_UNICAST)) { | |
7137 | if (!bgp_flag_check(bgp, | |
7138 | BGP_FLAG_NO_DEFAULT_IPV4)) { | |
2b791107 | 7139 | vty_out(vty, |
d62a17ae | 7140 | " no neighbor %s activate\n", |
7141 | addr); | |
7142 | } | |
7143 | } | |
7144 | } | |
7145 | } | |
7146 | ||
7147 | /* addpath TX knobs */ | |
7148 | if (peergroup_af_flag_check(peer, afi, safi, | |
7149 | PEER_FLAG_ADDPATH_TX_ALL_PATHS)) { | |
2b791107 | 7150 | vty_out(vty, " neighbor %s addpath-tx-all-paths\n", addr); |
d62a17ae | 7151 | } |
7152 | ||
7153 | if (peergroup_af_flag_check(peer, afi, safi, | |
7154 | PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS)) { | |
2b791107 DL |
7155 | vty_out(vty, " neighbor %s addpath-tx-bestpath-per-AS\n", |
7156 | addr); | |
d62a17ae | 7157 | } |
7158 | ||
7159 | /* ORF capability. */ | |
7160 | if (peergroup_af_flag_check(peer, afi, safi, PEER_FLAG_ORF_PREFIX_SM) | |
7161 | || peergroup_af_flag_check(peer, afi, safi, | |
7162 | PEER_FLAG_ORF_PREFIX_RM)) { | |
2b791107 | 7163 | vty_out(vty, " neighbor %s capability orf prefix-list", addr); |
d62a17ae | 7164 | |
7165 | if (peergroup_af_flag_check(peer, afi, safi, | |
7166 | PEER_FLAG_ORF_PREFIX_SM) | |
7167 | && peergroup_af_flag_check(peer, afi, safi, | |
7168 | PEER_FLAG_ORF_PREFIX_RM)) | |
7169 | vty_out(vty, " both"); | |
7170 | else if (peergroup_af_flag_check(peer, afi, safi, | |
7171 | PEER_FLAG_ORF_PREFIX_SM)) | |
7172 | vty_out(vty, " send"); | |
7173 | else | |
7174 | vty_out(vty, " receive"); | |
7175 | vty_out(vty, "\n"); | |
7176 | } | |
7177 | ||
7178 | /* Route reflector client. */ | |
7179 | if (peergroup_af_flag_check(peer, afi, safi, | |
7180 | PEER_FLAG_REFLECTOR_CLIENT)) { | |
2b791107 | 7181 | vty_out(vty, " neighbor %s route-reflector-client\n", addr); |
d62a17ae | 7182 | } |
7183 | ||
7184 | /* next-hop-self force */ | |
7185 | if (peergroup_af_flag_check(peer, afi, safi, | |
7186 | PEER_FLAG_FORCE_NEXTHOP_SELF)) { | |
2b791107 | 7187 | vty_out(vty, " neighbor %s next-hop-self force\n", addr); |
d62a17ae | 7188 | } |
7189 | ||
7190 | /* next-hop-self */ | |
7191 | if (peergroup_af_flag_check(peer, afi, safi, PEER_FLAG_NEXTHOP_SELF)) { | |
2b791107 | 7192 | vty_out(vty, " neighbor %s next-hop-self\n", addr); |
d62a17ae | 7193 | } |
7194 | ||
7195 | /* remove-private-AS */ | |
7196 | if (peergroup_af_flag_check(peer, afi, safi, | |
7197 | PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE)) { | |
2b791107 | 7198 | vty_out(vty, " neighbor %s remove-private-AS all replace-AS\n", |
d62a17ae | 7199 | addr); |
7200 | } | |
7201 | ||
7202 | else if (peergroup_af_flag_check(peer, afi, safi, | |
7203 | PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE)) { | |
2b791107 DL |
7204 | vty_out(vty, " neighbor %s remove-private-AS replace-AS\n", |
7205 | addr); | |
d62a17ae | 7206 | } |
7207 | ||
7208 | else if (peergroup_af_flag_check(peer, afi, safi, | |
7209 | PEER_FLAG_REMOVE_PRIVATE_AS_ALL)) { | |
2b791107 | 7210 | vty_out(vty, " neighbor %s remove-private-AS all\n", addr); |
d62a17ae | 7211 | } |
7212 | ||
7213 | else if (peergroup_af_flag_check(peer, afi, safi, | |
7214 | PEER_FLAG_REMOVE_PRIVATE_AS)) { | |
2b791107 | 7215 | vty_out(vty, " neighbor %s remove-private-AS\n", addr); |
d62a17ae | 7216 | } |
7217 | ||
7218 | /* as-override */ | |
7219 | if (peergroup_af_flag_check(peer, afi, safi, PEER_FLAG_AS_OVERRIDE)) { | |
2b791107 | 7220 | vty_out(vty, " neighbor %s as-override\n", addr); |
d62a17ae | 7221 | } |
7222 | ||
7223 | /* send-community print. */ | |
27c05d4d | 7224 | flag_scomm = peergroup_af_flag_check(peer, afi, safi, |
cf9ac8bf | 7225 | PEER_FLAG_SEND_COMMUNITY); |
27c05d4d | 7226 | flag_secomm = peergroup_af_flag_check(peer, afi, safi, |
cf9ac8bf | 7227 | PEER_FLAG_SEND_EXT_COMMUNITY); |
27c05d4d | 7228 | flag_slcomm = peergroup_af_flag_check(peer, afi, safi, |
cf9ac8bf | 7229 | PEER_FLAG_SEND_LARGE_COMMUNITY); |
27c05d4d PM |
7230 | |
7231 | if (!bgp_option_check(BGP_OPT_CONFIG_CISCO)) { | |
7232 | if (flag_scomm && flag_secomm && flag_slcomm) { | |
2b791107 DL |
7233 | vty_out(vty, " no neighbor %s send-community all\n", |
7234 | addr); | |
d62a17ae | 7235 | } else { |
27c05d4d | 7236 | if (flag_scomm) |
2b791107 | 7237 | vty_out(vty, |
27c05d4d | 7238 | " no neighbor %s send-community\n", |
d62a17ae | 7239 | addr); |
27c05d4d | 7240 | if (flag_secomm) |
2b791107 | 7241 | vty_out(vty, |
d62a17ae | 7242 | " no neighbor %s send-community extended\n", |
7243 | addr); | |
d62a17ae | 7244 | |
27c05d4d | 7245 | if (flag_slcomm) |
2b791107 | 7246 | vty_out(vty, |
27c05d4d PM |
7247 | " no neighbor %s send-community large\n", |
7248 | addr); | |
7249 | } | |
7250 | } else { | |
7251 | if (flag_scomm && flag_secomm && flag_slcomm) { | |
7252 | vty_out(vty, " neighbor %s send-community all\n", | |
7253 | addr); | |
7254 | } else if (flag_scomm && flag_secomm) { | |
7255 | vty_out(vty, " neighbor %s send-community both\n", | |
7256 | addr); | |
7257 | } else { | |
7258 | if (flag_scomm) | |
7259 | vty_out(vty, " neighbor %s send-community\n", | |
7260 | addr); | |
7261 | if (flag_secomm) | |
7262 | vty_out(vty, | |
7263 | " neighbor %s send-community extended\n", | |
7264 | addr); | |
7265 | if (flag_slcomm) | |
7266 | vty_out(vty, | |
7267 | " neighbor %s send-community large\n", | |
d62a17ae | 7268 | addr); |
d62a17ae | 7269 | } |
7270 | } | |
7271 | ||
7272 | /* Default information */ | |
7273 | if (peergroup_af_flag_check(peer, afi, safi, | |
598ce6bd | 7274 | PEER_FLAG_DEFAULT_ORIGINATE)) { |
2b791107 | 7275 | vty_out(vty, " neighbor %s default-originate", addr); |
598ce6bd | 7276 | |
d62a17ae | 7277 | if (peer->default_rmap[afi][safi].name) |
7278 | vty_out(vty, " route-map %s", | |
7279 | peer->default_rmap[afi][safi].name); | |
598ce6bd | 7280 | |
d62a17ae | 7281 | vty_out(vty, "\n"); |
7282 | } | |
7283 | ||
7284 | /* Soft reconfiguration inbound. */ | |
7285 | if (peergroup_af_flag_check(peer, afi, safi, PEER_FLAG_SOFT_RECONFIG)) { | |
2b791107 DL |
7286 | vty_out(vty, " neighbor %s soft-reconfiguration inbound\n", |
7287 | addr); | |
d62a17ae | 7288 | } |
7289 | ||
7290 | /* maximum-prefix. */ | |
598ce6bd PM |
7291 | if (peergroup_af_flag_check(peer, afi, safi, PEER_FLAG_MAX_PREFIX)) { |
7292 | vty_out(vty, " neighbor %s maximum-prefix %lu", addr, | |
7293 | peer->pmax[afi][safi]); | |
7294 | ||
7295 | if (peer->pmax_threshold[afi][safi] | |
7296 | != MAXIMUM_PREFIX_THRESHOLD_DEFAULT) | |
7297 | vty_out(vty, " %u", peer->pmax_threshold[afi][safi]); | |
7298 | if (peer_af_flag_check(peer, afi, safi, | |
d62a17ae | 7299 | PEER_FLAG_MAX_PREFIX_WARNING)) |
598ce6bd PM |
7300 | vty_out(vty, " warning-only"); |
7301 | if (peer->pmax_restart[afi][safi]) | |
7302 | vty_out(vty, " restart %u", | |
7303 | peer->pmax_restart[afi][safi]); | |
7304 | ||
7305 | vty_out(vty, "\n"); | |
7306 | } | |
d62a17ae | 7307 | |
7308 | /* Route server client. */ | |
7309 | if (peergroup_af_flag_check(peer, afi, safi, | |
7310 | PEER_FLAG_RSERVER_CLIENT)) { | |
2b791107 | 7311 | vty_out(vty, " neighbor %s route-server-client\n", addr); |
d62a17ae | 7312 | } |
7313 | ||
7314 | /* Nexthop-local unchanged. */ | |
7315 | if (peergroup_af_flag_check(peer, afi, safi, | |
7316 | PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED)) { | |
2b791107 | 7317 | vty_out(vty, " neighbor %s nexthop-local unchanged\n", addr); |
d62a17ae | 7318 | } |
7319 | ||
7320 | /* allowas-in <1-10> */ | |
598ce6bd PM |
7321 | if (peergroup_af_flag_check(peer, afi, safi, PEER_FLAG_ALLOWAS_IN)) { |
7322 | if (peer_af_flag_check(peer, afi, safi, | |
7323 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { | |
2b791107 | 7324 | vty_out(vty, " neighbor %s allowas-in origin\n", addr); |
598ce6bd PM |
7325 | } else if (peer->allowas_in[afi][safi] == 3) { |
7326 | vty_out(vty, " neighbor %s allowas-in\n", addr); | |
7327 | } else { | |
7328 | vty_out(vty, " neighbor %s allowas-in %d\n", addr, | |
cf9ac8bf | 7329 | peer->allowas_in[afi][safi]); |
d62a17ae | 7330 | } |
7331 | } | |
7332 | ||
7333 | /* weight */ | |
598ce6bd PM |
7334 | if (peergroup_af_flag_check(peer, afi, safi, PEER_FLAG_WEIGHT)) |
7335 | vty_out(vty, " neighbor %s weight %lu\n", addr, | |
7336 | peer->weight[afi][safi]); | |
d62a17ae | 7337 | |
7338 | /* Filter. */ | |
2b791107 | 7339 | bgp_config_write_filter(vty, peer, afi, safi); |
d62a17ae | 7340 | |
7341 | /* atribute-unchanged. */ | |
a4d82a8a | 7342 | if (peer_af_flag_check(peer, afi, safi, PEER_FLAG_AS_PATH_UNCHANGED) |
3518f352 DS |
7343 | || (safi != SAFI_EVPN |
7344 | && peer_af_flag_check(peer, afi, safi, | |
7345 | PEER_FLAG_NEXTHOP_UNCHANGED)) | |
a4d82a8a PZ |
7346 | || peer_af_flag_check(peer, afi, safi, PEER_FLAG_MED_UNCHANGED)) { |
7347 | ||
7348 | if (!peer_group_active(peer) | |
7349 | || peergroup_af_flag_check(peer, afi, safi, | |
7350 | PEER_FLAG_AS_PATH_UNCHANGED) | |
7351 | || peergroup_af_flag_check(peer, afi, safi, | |
7352 | PEER_FLAG_NEXTHOP_UNCHANGED) | |
7353 | || peergroup_af_flag_check(peer, afi, safi, | |
7354 | PEER_FLAG_MED_UNCHANGED)) { | |
8eeb0335 | 7355 | |
2b791107 | 7356 | vty_out(vty, |
d62a17ae | 7357 | " neighbor %s attribute-unchanged%s%s%s\n", |
7358 | addr, | |
60466a63 QY |
7359 | peer_af_flag_check(peer, afi, safi, |
7360 | PEER_FLAG_AS_PATH_UNCHANGED) | |
d62a17ae | 7361 | ? " as-path" |
7362 | : "", | |
60466a63 QY |
7363 | peer_af_flag_check(peer, afi, safi, |
7364 | PEER_FLAG_NEXTHOP_UNCHANGED) | |
d62a17ae | 7365 | ? " next-hop" |
7366 | : "", | |
8eeb0335 DW |
7367 | peer_af_flag_check(peer, afi, safi, |
7368 | PEER_FLAG_MED_UNCHANGED) | |
d62a17ae | 7369 | ? " med" |
7370 | : ""); | |
7371 | } | |
7372 | } | |
718e3744 | 7373 | } |
7374 | ||
2b791107 DL |
7375 | /* Address family based peer configuration display. */ |
7376 | static void bgp_config_write_family(struct vty *vty, struct bgp *bgp, afi_t afi, | |
7377 | safi_t safi) | |
d62a17ae | 7378 | { |
2b791107 DL |
7379 | struct peer *peer; |
7380 | struct peer_group *group; | |
7381 | struct listnode *node, *nnode; | |
d62a17ae | 7382 | |
d62a17ae | 7383 | |
2b791107 | 7384 | vty_frame(vty, " !\n address-family "); |
d62a17ae | 7385 | if (afi == AFI_IP) { |
7386 | if (safi == SAFI_UNICAST) | |
2b791107 | 7387 | vty_frame(vty, "ipv4 unicast"); |
d62a17ae | 7388 | else if (safi == SAFI_LABELED_UNICAST) |
2b791107 | 7389 | vty_frame(vty, "ipv4 labeled-unicast"); |
d62a17ae | 7390 | else if (safi == SAFI_MULTICAST) |
2b791107 | 7391 | vty_frame(vty, "ipv4 multicast"); |
d62a17ae | 7392 | else if (safi == SAFI_MPLS_VPN) |
2b791107 | 7393 | vty_frame(vty, "ipv4 vpn"); |
d62a17ae | 7394 | else if (safi == SAFI_ENCAP) |
2b791107 | 7395 | vty_frame(vty, "ipv4 encap"); |
7c40bf39 | 7396 | else if (safi == SAFI_FLOWSPEC) |
7397 | vty_frame(vty, "ipv4 flowspec"); | |
d62a17ae | 7398 | } else if (afi == AFI_IP6) { |
7399 | if (safi == SAFI_UNICAST) | |
2b791107 | 7400 | vty_frame(vty, "ipv6 unicast"); |
d62a17ae | 7401 | else if (safi == SAFI_LABELED_UNICAST) |
2b791107 | 7402 | vty_frame(vty, "ipv6 labeled-unicast"); |
d62a17ae | 7403 | else if (safi == SAFI_MULTICAST) |
2b791107 | 7404 | vty_frame(vty, "ipv6 multicast"); |
d62a17ae | 7405 | else if (safi == SAFI_MPLS_VPN) |
2b791107 | 7406 | vty_frame(vty, "ipv6 vpn"); |
d62a17ae | 7407 | else if (safi == SAFI_ENCAP) |
2b791107 | 7408 | vty_frame(vty, "ipv6 encap"); |
7c40bf39 | 7409 | else if (safi == SAFI_FLOWSPEC) |
7410 | vty_frame(vty, "ipv6 flowspec"); | |
d62a17ae | 7411 | } else if (afi == AFI_L2VPN) { |
7412 | if (safi == SAFI_EVPN) | |
2b791107 | 7413 | vty_frame(vty, "l2vpn evpn"); |
d62a17ae | 7414 | } |
2b791107 | 7415 | vty_frame(vty, "\n"); |
718e3744 | 7416 | |
2b791107 | 7417 | bgp_config_write_distance(vty, bgp, afi, safi); |
718e3744 | 7418 | |
2b791107 | 7419 | bgp_config_write_network(vty, bgp, afi, safi); |
734b349e | 7420 | |
2b791107 | 7421 | bgp_config_write_redistribute(vty, bgp, afi, safi); |
718e3744 | 7422 | |
d62a17ae | 7423 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) |
2b791107 | 7424 | bgp_config_write_peer_af(vty, bgp, group->conf, afi, safi); |
400b1fad | 7425 | |
d62a17ae | 7426 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { |
7427 | /* Skip dynamic neighbors. */ | |
7428 | if (peer_dynamic_neighbor(peer)) | |
7429 | continue; | |
f14e6fdb | 7430 | |
d62a17ae | 7431 | /* Do not display doppelganger peers */ |
7432 | if (CHECK_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE)) | |
2b791107 | 7433 | bgp_config_write_peer_af(vty, bgp, peer, afi, safi); |
d62a17ae | 7434 | } |
165b5fff | 7435 | |
2b791107 DL |
7436 | bgp_config_write_maxpaths(vty, bgp, afi, safi); |
7437 | bgp_config_write_table_map(vty, bgp, afi, safi); | |
165b5fff | 7438 | |
d62a17ae | 7439 | if (safi == SAFI_EVPN) |
2b791107 | 7440 | bgp_config_write_evpn_info(vty, bgp, afi, safi); |
718e3744 | 7441 | |
4762c213 PG |
7442 | if (safi == SAFI_FLOWSPEC) |
7443 | bgp_fs_config_write_pbr(vty, bgp, afi, safi); | |
7444 | ||
b9c7bc5a PZ |
7445 | if (safi == SAFI_UNICAST) { |
7446 | bgp_vpn_policy_config_write_afi(vty, bgp, afi); | |
7447 | if (CHECK_FLAG(bgp->af_flags[afi][safi], | |
7448 | BGP_CONFIG_VRF_TO_MPLSVPN_EXPORT)) { | |
ddb5b488 | 7449 | |
b9c7bc5a PZ |
7450 | vty_out(vty, " export vpn\n"); |
7451 | } | |
7452 | if (CHECK_FLAG(bgp->af_flags[afi][safi], | |
7453 | BGP_CONFIG_MPLSVPN_TO_VRF_IMPORT)) { | |
7454 | ||
7455 | vty_out(vty, " import vpn\n"); | |
7456 | } | |
12a844a5 DS |
7457 | if (CHECK_FLAG(bgp->af_flags[afi][safi], |
7458 | BGP_CONFIG_VRF_TO_VRF_IMPORT)) { | |
7459 | struct listnode *node; | |
7460 | char *name; | |
7461 | ||
7462 | for (ALL_LIST_ELEMENTS_RO( | |
7463 | bgp->vpn_policy[afi].import_vrf, node, | |
7464 | name)) | |
7465 | vty_out(vty, " import vrf %s\n", name); | |
7466 | } | |
ddb5b488 PZ |
7467 | } |
7468 | ||
2b791107 | 7469 | vty_endframe(vty, " exit-address-family\n"); |
718e3744 | 7470 | } |
7471 | ||
47cbc09b PM |
7472 | /* clang-format off */ |
7473 | #if defined(VERSION_TYPE_DEV) && CONFDATE > 20180517 | |
7474 | CPP_NOTICE("bgpd: remove 'bgp enforce-first-as' config migration from bgp_config_write") | |
7475 | #endif | |
7476 | /* clang-format on */ | |
7477 | ||
d62a17ae | 7478 | int bgp_config_write(struct vty *vty) |
718e3744 | 7479 | { |
d62a17ae | 7480 | int write = 0; |
7481 | struct bgp *bgp; | |
7482 | struct peer_group *group; | |
7483 | struct peer *peer; | |
7484 | struct listnode *node, *nnode; | |
7485 | struct listnode *mnode, *mnnode; | |
718e3744 | 7486 | |
d62a17ae | 7487 | /* BGP Multiple instance. */ |
7488 | if (!bgp_option_check(BGP_OPT_MULTIPLE_INSTANCE)) { | |
7489 | vty_out(vty, "no bgp multiple-instance\n"); | |
7490 | write++; | |
7491 | } | |
718e3744 | 7492 | |
d62a17ae | 7493 | /* BGP Config type. */ |
7494 | if (bgp_option_check(BGP_OPT_CONFIG_CISCO)) { | |
7495 | vty_out(vty, "bgp config-type cisco\n"); | |
7496 | write++; | |
7497 | } | |
718e3744 | 7498 | |
d62a17ae | 7499 | if (bm->rmap_update_timer != RMAP_DEFAULT_UPDATE_TIMER) |
7500 | vty_out(vty, "bgp route-map delay-timer %u\n", | |
7501 | bm->rmap_update_timer); | |
7502 | ||
2b791107 DL |
7503 | if (write) |
7504 | vty_out(vty, "!\n"); | |
7505 | ||
d62a17ae | 7506 | /* BGP configuration. */ |
7507 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
0b5131c9 MK |
7508 | |
7509 | /* skip all auto created vrf as they dont have user config */ | |
7510 | if (CHECK_FLAG(bgp->vrf_flags, BGP_VRF_AUTO)) | |
7511 | continue; | |
7512 | ||
47cbc09b PM |
7513 | /* Migrate deprecated 'bgp enforce-first-as' |
7514 | * config to 'neighbor * enforce-first-as' configs | |
7515 | */ | |
7516 | if (bgp_flag_check(bgp, BGP_FLAG_ENFORCE_FIRST_AS)) { | |
7517 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
7518 | peer_flag_set(peer, PEER_FLAG_ENFORCE_FIRST_AS); | |
7519 | bgp_flag_unset(bgp, BGP_FLAG_ENFORCE_FIRST_AS); | |
7520 | } | |
7521 | ||
d62a17ae | 7522 | /* Router bgp ASN */ |
7523 | vty_out(vty, "router bgp %u", bgp->as); | |
7524 | ||
7525 | if (bgp_option_check(BGP_OPT_MULTIPLE_INSTANCE)) { | |
7526 | if (bgp->name) | |
7527 | vty_out(vty, " %s %s", | |
7528 | (bgp->inst_type | |
7529 | == BGP_INSTANCE_TYPE_VIEW) | |
7530 | ? "view" | |
7531 | : "vrf", | |
7532 | bgp->name); | |
7533 | } | |
7534 | vty_out(vty, "\n"); | |
7535 | ||
7536 | /* No Synchronization */ | |
7537 | if (bgp_option_check(BGP_OPT_CONFIG_CISCO)) | |
7538 | vty_out(vty, " no synchronization\n"); | |
7539 | ||
7540 | /* BGP fast-external-failover. */ | |
7541 | if (CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) | |
7542 | vty_out(vty, " no bgp fast-external-failover\n"); | |
7543 | ||
7544 | /* BGP router ID. */ | |
7545 | if (bgp->router_id_static.s_addr != 0) | |
7546 | vty_out(vty, " bgp router-id %s\n", | |
7547 | inet_ntoa(bgp->router_id_static)); | |
7548 | ||
7549 | /* BGP log-neighbor-changes. */ | |
7550 | if (!!bgp_flag_check(bgp, BGP_FLAG_LOG_NEIGHBOR_CHANGES) | |
7551 | != DFLT_BGP_LOG_NEIGHBOR_CHANGES) | |
7552 | vty_out(vty, " %sbgp log-neighbor-changes\n", | |
7553 | bgp_flag_check(bgp, | |
7554 | BGP_FLAG_LOG_NEIGHBOR_CHANGES) | |
7555 | ? "" | |
7556 | : "no "); | |
7557 | ||
7558 | /* BGP configuration. */ | |
7559 | if (bgp_flag_check(bgp, BGP_FLAG_ALWAYS_COMPARE_MED)) | |
7560 | vty_out(vty, " bgp always-compare-med\n"); | |
7561 | ||
7562 | /* BGP default ipv4-unicast. */ | |
7563 | if (bgp_flag_check(bgp, BGP_FLAG_NO_DEFAULT_IPV4)) | |
7564 | vty_out(vty, " no bgp default ipv4-unicast\n"); | |
7565 | ||
7566 | /* BGP default local-preference. */ | |
7567 | if (bgp->default_local_pref != BGP_DEFAULT_LOCAL_PREF) | |
7568 | vty_out(vty, " bgp default local-preference %u\n", | |
7569 | bgp->default_local_pref); | |
7570 | ||
7571 | /* BGP default show-hostname */ | |
7572 | if (!!bgp_flag_check(bgp, BGP_FLAG_SHOW_HOSTNAME) | |
7573 | != DFLT_BGP_SHOW_HOSTNAME) | |
7574 | vty_out(vty, " %sbgp default show-hostname\n", | |
7575 | bgp_flag_check(bgp, BGP_FLAG_SHOW_HOSTNAME) | |
7576 | ? "" | |
7577 | : "no "); | |
7578 | ||
7579 | /* BGP default subgroup-pkt-queue-max. */ | |
7580 | if (bgp->default_subgroup_pkt_queue_max | |
7581 | != BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX) | |
7582 | vty_out(vty, " bgp default subgroup-pkt-queue-max %u\n", | |
7583 | bgp->default_subgroup_pkt_queue_max); | |
7584 | ||
f26845f9 QY |
7585 | /* BGP default autoshutdown neighbors */ |
7586 | if (bgp->autoshutdown) | |
8175f54a | 7587 | vty_out(vty, " bgp default shutdown\n"); |
f26845f9 | 7588 | |
d62a17ae | 7589 | /* BGP client-to-client reflection. */ |
7590 | if (bgp_flag_check(bgp, BGP_FLAG_NO_CLIENT_TO_CLIENT)) | |
7591 | vty_out(vty, " no bgp client-to-client reflection\n"); | |
7592 | ||
7593 | /* BGP cluster ID. */ | |
7594 | if (CHECK_FLAG(bgp->config, BGP_CONFIG_CLUSTER_ID)) | |
7595 | vty_out(vty, " bgp cluster-id %s\n", | |
7596 | inet_ntoa(bgp->cluster_id)); | |
7597 | ||
7598 | /* Disable ebgp connected nexthop check */ | |
7599 | if (bgp_flag_check(bgp, BGP_FLAG_DISABLE_NH_CONNECTED_CHK)) | |
7600 | vty_out(vty, | |
7601 | " bgp disable-ebgp-connected-route-check\n"); | |
7602 | ||
7603 | /* Confederation identifier*/ | |
7604 | if (CHECK_FLAG(bgp->config, BGP_CONFIG_CONFEDERATION)) | |
7605 | vty_out(vty, " bgp confederation identifier %i\n", | |
7606 | bgp->confed_id); | |
7607 | ||
7608 | /* Confederation peer */ | |
7609 | if (bgp->confed_peers_cnt > 0) { | |
7610 | int i; | |
7611 | ||
7612 | vty_out(vty, " bgp confederation peers"); | |
7613 | ||
7614 | for (i = 0; i < bgp->confed_peers_cnt; i++) | |
7615 | vty_out(vty, " %u", bgp->confed_peers[i]); | |
7616 | ||
7617 | vty_out(vty, "\n"); | |
7618 | } | |
5fe9f963 | 7619 | |
d62a17ae | 7620 | /* BGP deterministic-med. */ |
7621 | if (!!bgp_flag_check(bgp, BGP_FLAG_DETERMINISTIC_MED) | |
7622 | != DFLT_BGP_DETERMINISTIC_MED) | |
7623 | vty_out(vty, " %sbgp deterministic-med\n", | |
7624 | bgp_flag_check(bgp, BGP_FLAG_DETERMINISTIC_MED) | |
7625 | ? "" | |
7626 | : "no "); | |
7627 | ||
7628 | /* BGP update-delay. */ | |
7629 | bgp_config_write_update_delay(vty, bgp); | |
7630 | ||
7631 | if (bgp->v_maxmed_onstartup | |
7632 | != BGP_MAXMED_ONSTARTUP_UNCONFIGURED) { | |
7633 | vty_out(vty, " bgp max-med on-startup %u", | |
7634 | bgp->v_maxmed_onstartup); | |
7635 | if (bgp->maxmed_onstartup_value | |
7636 | != BGP_MAXMED_VALUE_DEFAULT) | |
7637 | vty_out(vty, " %u", | |
7638 | bgp->maxmed_onstartup_value); | |
7639 | vty_out(vty, "\n"); | |
7640 | } | |
7641 | if (bgp->v_maxmed_admin != BGP_MAXMED_ADMIN_UNCONFIGURED) { | |
7642 | vty_out(vty, " bgp max-med administrative"); | |
7643 | if (bgp->maxmed_admin_value != BGP_MAXMED_VALUE_DEFAULT) | |
7644 | vty_out(vty, " %u", bgp->maxmed_admin_value); | |
7645 | vty_out(vty, "\n"); | |
7646 | } | |
718e3744 | 7647 | |
d62a17ae | 7648 | /* write quanta */ |
7649 | bgp_config_write_wpkt_quanta(vty, bgp); | |
555e09d4 QY |
7650 | /* read quanta */ |
7651 | bgp_config_write_rpkt_quanta(vty, bgp); | |
d62a17ae | 7652 | |
7653 | /* coalesce time */ | |
7654 | bgp_config_write_coalesce_time(vty, bgp); | |
7655 | ||
7656 | /* BGP graceful-restart. */ | |
7657 | if (bgp->stalepath_time != BGP_DEFAULT_STALEPATH_TIME) | |
7658 | vty_out(vty, | |
7659 | " bgp graceful-restart stalepath-time %u\n", | |
7660 | bgp->stalepath_time); | |
7661 | if (bgp->restart_time != BGP_DEFAULT_RESTART_TIME) | |
7662 | vty_out(vty, " bgp graceful-restart restart-time %u\n", | |
7663 | bgp->restart_time); | |
7664 | if (bgp_flag_check(bgp, BGP_FLAG_GRACEFUL_RESTART)) | |
7665 | vty_out(vty, " bgp graceful-restart\n"); | |
7666 | ||
7f323236 DW |
7667 | /* BGP graceful-shutdown */ |
7668 | if (bgp_flag_check(bgp, BGP_FLAG_GRACEFUL_SHUTDOWN)) | |
7669 | vty_out(vty, " bgp graceful-shutdown\n"); | |
7670 | ||
d62a17ae | 7671 | /* BGP graceful-restart Preserve State F bit. */ |
7672 | if (bgp_flag_check(bgp, BGP_FLAG_GR_PRESERVE_FWD)) | |
7673 | vty_out(vty, | |
7674 | " bgp graceful-restart preserve-fw-state\n"); | |
7675 | ||
7676 | /* BGP bestpath method. */ | |
7677 | if (bgp_flag_check(bgp, BGP_FLAG_ASPATH_IGNORE)) | |
7678 | vty_out(vty, " bgp bestpath as-path ignore\n"); | |
7679 | if (bgp_flag_check(bgp, BGP_FLAG_ASPATH_CONFED)) | |
7680 | vty_out(vty, " bgp bestpath as-path confed\n"); | |
7681 | ||
7682 | if (bgp_flag_check(bgp, BGP_FLAG_ASPATH_MULTIPATH_RELAX)) { | |
7683 | if (bgp_flag_check(bgp, | |
7684 | BGP_FLAG_MULTIPATH_RELAX_AS_SET)) { | |
7685 | vty_out(vty, | |
7686 | " bgp bestpath as-path multipath-relax as-set\n"); | |
7687 | } else { | |
7688 | vty_out(vty, | |
7689 | " bgp bestpath as-path multipath-relax\n"); | |
7690 | } | |
7691 | } | |
718e3744 | 7692 | |
d62a17ae | 7693 | if (bgp_flag_check(bgp, BGP_FLAG_RR_ALLOW_OUTBOUND_POLICY)) { |
7694 | vty_out(vty, | |
7695 | " bgp route-reflector allow-outbound-policy\n"); | |
7696 | } | |
7697 | if (bgp_flag_check(bgp, BGP_FLAG_COMPARE_ROUTER_ID)) | |
7698 | vty_out(vty, " bgp bestpath compare-routerid\n"); | |
7699 | if (bgp_flag_check(bgp, BGP_FLAG_MED_CONFED) | |
7700 | || bgp_flag_check(bgp, BGP_FLAG_MED_MISSING_AS_WORST)) { | |
7701 | vty_out(vty, " bgp bestpath med"); | |
7702 | if (bgp_flag_check(bgp, BGP_FLAG_MED_CONFED)) | |
7703 | vty_out(vty, " confed"); | |
7704 | if (bgp_flag_check(bgp, BGP_FLAG_MED_MISSING_AS_WORST)) | |
7705 | vty_out(vty, " missing-as-worst"); | |
7706 | vty_out(vty, "\n"); | |
7707 | } | |
718e3744 | 7708 | |
d62a17ae | 7709 | /* BGP network import check. */ |
7710 | if (!!bgp_flag_check(bgp, BGP_FLAG_IMPORT_CHECK) | |
7711 | != DFLT_BGP_IMPORT_CHECK) | |
7712 | vty_out(vty, " %sbgp network import-check\n", | |
7713 | bgp_flag_check(bgp, BGP_FLAG_IMPORT_CHECK) | |
7714 | ? "" | |
7715 | : "no "); | |
7716 | ||
7717 | /* BGP flag dampening. */ | |
7718 | if (CHECK_FLAG(bgp->af_flags[AFI_IP][SAFI_UNICAST], | |
7719 | BGP_CONFIG_DAMPENING)) | |
7720 | bgp_config_write_damp(vty); | |
7721 | ||
7722 | /* BGP timers configuration. */ | |
7723 | if (bgp->default_keepalive != BGP_DEFAULT_KEEPALIVE | |
7724 | && bgp->default_holdtime != BGP_DEFAULT_HOLDTIME) | |
7725 | vty_out(vty, " timers bgp %u %u\n", | |
7726 | bgp->default_keepalive, bgp->default_holdtime); | |
7727 | ||
7728 | /* peer-group */ | |
7729 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
7730 | bgp_config_write_peer_global(vty, bgp, group->conf); | |
7731 | } | |
7732 | ||
7733 | /* Normal neighbor configuration. */ | |
7734 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
7735 | if (CHECK_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE)) | |
7736 | bgp_config_write_peer_global(vty, bgp, peer); | |
7737 | } | |
718e3744 | 7738 | |
d62a17ae | 7739 | /* listen range and limit for dynamic BGP neighbors */ |
7740 | bgp_config_write_listen(vty, bgp); | |
f14e6fdb | 7741 | |
d62a17ae | 7742 | /* No auto-summary */ |
7743 | if (bgp_option_check(BGP_OPT_CONFIG_CISCO)) | |
7744 | vty_out(vty, " no auto-summary\n"); | |
718e3744 | 7745 | |
d62a17ae | 7746 | /* IPv4 unicast configuration. */ |
2b791107 | 7747 | bgp_config_write_family(vty, bgp, AFI_IP, SAFI_UNICAST); |
0b960b4d | 7748 | |
d62a17ae | 7749 | /* IPv4 multicast configuration. */ |
2b791107 | 7750 | bgp_config_write_family(vty, bgp, AFI_IP, SAFI_MULTICAST); |
718e3744 | 7751 | |
d62a17ae | 7752 | /* IPv4 labeled-unicast configuration. */ |
2b791107 | 7753 | bgp_config_write_family(vty, bgp, AFI_IP, SAFI_LABELED_UNICAST); |
f51bae9c | 7754 | |
d62a17ae | 7755 | /* IPv4 VPN configuration. */ |
2b791107 | 7756 | bgp_config_write_family(vty, bgp, AFI_IP, SAFI_MPLS_VPN); |
718e3744 | 7757 | |
d62a17ae | 7758 | /* ENCAPv4 configuration. */ |
2b791107 | 7759 | bgp_config_write_family(vty, bgp, AFI_IP, SAFI_ENCAP); |
8b1fb8be | 7760 | |
7c40bf39 | 7761 | /* FLOWSPEC v4 configuration. */ |
7762 | bgp_config_write_family(vty, bgp, AFI_IP, SAFI_FLOWSPEC); | |
7763 | ||
d62a17ae | 7764 | /* IPv6 unicast configuration. */ |
2b791107 | 7765 | bgp_config_write_family(vty, bgp, AFI_IP6, SAFI_UNICAST); |
718e3744 | 7766 | |
d62a17ae | 7767 | /* IPv6 multicast configuration. */ |
2b791107 | 7768 | bgp_config_write_family(vty, bgp, AFI_IP6, SAFI_MULTICAST); |
37a217a5 | 7769 | |
d62a17ae | 7770 | /* IPv6 labeled-unicast configuration. */ |
2b791107 DL |
7771 | bgp_config_write_family(vty, bgp, AFI_IP6, |
7772 | SAFI_LABELED_UNICAST); | |
f51bae9c | 7773 | |
d62a17ae | 7774 | /* IPv6 VPN configuration. */ |
2b791107 | 7775 | bgp_config_write_family(vty, bgp, AFI_IP6, SAFI_MPLS_VPN); |
8ecd3266 | 7776 | |
d62a17ae | 7777 | /* ENCAPv6 configuration. */ |
2b791107 | 7778 | bgp_config_write_family(vty, bgp, AFI_IP6, SAFI_ENCAP); |
8b1fb8be | 7779 | |
7c40bf39 | 7780 | /* FLOWSPEC v6 configuration. */ |
7781 | bgp_config_write_family(vty, bgp, AFI_IP6, SAFI_FLOWSPEC); | |
7782 | ||
d62a17ae | 7783 | /* EVPN configuration. */ |
2b791107 | 7784 | bgp_config_write_family(vty, bgp, AFI_L2VPN, SAFI_EVPN); |
3d6c0dfa | 7785 | |
65efcfce | 7786 | #if ENABLE_BGP_VNC |
2b791107 | 7787 | bgp_rfapi_cfg_write(vty, bgp); |
65efcfce LB |
7788 | #endif |
7789 | ||
2b791107 | 7790 | vty_out(vty, "!\n"); |
d62a17ae | 7791 | } |
2b791107 | 7792 | return 0; |
718e3744 | 7793 | } |
7794 | ||
d62a17ae | 7795 | void bgp_master_init(struct thread_master *master) |
718e3744 | 7796 | { |
d62a17ae | 7797 | qobj_init(); |
0e64d123 | 7798 | |
d62a17ae | 7799 | memset(&bgp_master, 0, sizeof(struct bgp_master)); |
718e3744 | 7800 | |
d62a17ae | 7801 | bm = &bgp_master; |
7802 | bm->bgp = list_new(); | |
7803 | bm->listen_sockets = list_new(); | |
7804 | bm->port = BGP_PORT_DEFAULT; | |
7805 | bm->master = master; | |
7806 | bm->start_time = bgp_clock(); | |
7807 | bm->t_rmap_update = NULL; | |
7808 | bm->rmap_update_timer = RMAP_DEFAULT_UPDATE_TIMER; | |
97b4a0ec | 7809 | bm->terminating = false; |
495f0b13 | 7810 | |
d62a17ae | 7811 | bgp_process_queue_init(); |
b8fd6a15 | 7812 | |
e9eb5f63 | 7813 | /* init the rd id space. |
7814 | assign 0th index in the bitfield, | |
523cafc4 | 7815 | so that we start with id 1 |
7816 | */ | |
e9eb5f63 | 7817 | bf_init(bm->rd_idspace, UINT16_MAX); |
7818 | bf_assign_zero_index(bm->rd_idspace); | |
7819 | ||
d62a17ae | 7820 | /* Enable multiple instances by default. */ |
7821 | bgp_option_set(BGP_OPT_MULTIPLE_INSTANCE); | |
19df7279 | 7822 | |
955bfd98 | 7823 | /* mpls label dynamic allocation pool */ |
e70e9f8e | 7824 | bgp_lp_init(bm->master, &bm->labelpool); |
955bfd98 | 7825 | |
d62a17ae | 7826 | QOBJ_REG(bm, bgp_master); |
718e3744 | 7827 | } |
200df115 | 7828 | |
ad4cbda1 | 7829 | /* |
009b18fc | 7830 | * Free up connected routes and interfaces for a BGP instance. Invoked upon |
7831 | * instance delete (non-default only) or BGP exit. | |
ad4cbda1 | 7832 | */ |
d62a17ae | 7833 | static void bgp_if_finish(struct bgp *bgp) |
ad4cbda1 | 7834 | { |
f4e14fdb | 7835 | struct vrf *vrf = vrf_lookup_by_id(bgp->vrf_id); |
d62a17ae | 7836 | struct interface *ifp; |
7837 | ||
f4e14fdb | 7838 | if (bgp->inst_type == BGP_INSTANCE_TYPE_VIEW || !vrf) |
d62a17ae | 7839 | return; |
ad4cbda1 | 7840 | |
451fda4f | 7841 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 7842 | struct listnode *c_node, *c_nnode; |
7843 | struct connected *c; | |
ad4cbda1 | 7844 | |
d62a17ae | 7845 | for (ALL_LIST_ELEMENTS(ifp->connected, c_node, c_nnode, c)) |
7846 | bgp_connected_delete(bgp, c); | |
7847 | } | |
ad4cbda1 | 7848 | } |
6b0655a2 | 7849 | |
d62a17ae | 7850 | extern void bgp_snmp_init(void); |
3012671f | 7851 | |
d62a17ae | 7852 | static void bgp_viewvrf_autocomplete(vector comps, struct cmd_token *token) |
18c57037 | 7853 | { |
d62a17ae | 7854 | struct vrf *vrf = NULL; |
7855 | struct listnode *next; | |
7856 | struct bgp *bgp; | |
18c57037 | 7857 | |
a2addae8 | 7858 | RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) { |
d62a17ae | 7859 | if (vrf->vrf_id != VRF_DEFAULT) |
7860 | vector_set(comps, XSTRDUP(MTYPE_COMPLETION, vrf->name)); | |
7861 | } | |
18c57037 | 7862 | |
d62a17ae | 7863 | for (ALL_LIST_ELEMENTS_RO(bm->bgp, next, bgp)) { |
7864 | if (bgp->inst_type != BGP_INSTANCE_TYPE_VIEW) | |
7865 | continue; | |
18c57037 | 7866 | |
d62a17ae | 7867 | vector_set(comps, XSTRDUP(MTYPE_COMPLETION, bgp->name)); |
7868 | } | |
18c57037 DS |
7869 | } |
7870 | ||
7871 | static const struct cmd_variable_handler bgp_viewvrf_var_handlers[] = { | |
d62a17ae | 7872 | {.tokenname = "VIEWVRFNAME", .completions = bgp_viewvrf_autocomplete}, |
7873 | {.completions = NULL}, | |
18c57037 DS |
7874 | }; |
7875 | ||
da22432d | 7876 | static void bgp_pthreads_init() |
2d4ee774 | 7877 | { |
0ca8b79f QY |
7878 | frr_pthread_init(); |
7879 | ||
a715eab3 QY |
7880 | struct frr_pthread_attr io = { |
7881 | .id = PTHREAD_IO, | |
7882 | .start = frr_pthread_attr_default.start, | |
7883 | .stop = frr_pthread_attr_default.stop, | |
a715eab3 QY |
7884 | }; |
7885 | struct frr_pthread_attr ka = { | |
7886 | .id = PTHREAD_KEEPALIVES, | |
7887 | .start = bgp_keepalives_start, | |
7888 | .stop = bgp_keepalives_stop, | |
a715eab3 | 7889 | }; |
d8a8a8de QY |
7890 | frr_pthread_new(&io, "BGP I/O thread"); |
7891 | frr_pthread_new(&ka, "BGP Keepalives thread"); | |
419dfe6a QY |
7892 | } |
7893 | ||
7894 | void bgp_pthreads_run() | |
7895 | { | |
a715eab3 QY |
7896 | struct frr_pthread *io = frr_pthread_get(PTHREAD_IO); |
7897 | struct frr_pthread *ka = frr_pthread_get(PTHREAD_KEEPALIVES); | |
424ab01d | 7898 | |
a715eab3 QY |
7899 | frr_pthread_run(io, NULL); |
7900 | frr_pthread_run(ka, NULL); | |
88b24dee | 7901 | |
a715eab3 QY |
7902 | /* Wait until threads are ready. */ |
7903 | frr_pthread_wait_running(io); | |
7904 | frr_pthread_wait_running(ka); | |
2d4ee774 QY |
7905 | } |
7906 | ||
7907 | void bgp_pthreads_finish() | |
7908 | { | |
0ca8b79f QY |
7909 | frr_pthread_stop_all(); |
7910 | frr_pthread_finish(); | |
2d4ee774 QY |
7911 | } |
7912 | ||
d62a17ae | 7913 | void bgp_init(void) |
718e3744 | 7914 | { |
fc9a856f | 7915 | |
d62a17ae | 7916 | /* allocates some vital data structures used by peer commands in |
7917 | * vty_init */ | |
718e3744 | 7918 | |
419dfe6a QY |
7919 | /* pre-init pthreads */ |
7920 | bgp_pthreads_init(); | |
7921 | ||
d62a17ae | 7922 | /* Init zebra. */ |
7923 | bgp_zebra_init(bm->master); | |
718e3744 | 7924 | |
65efcfce | 7925 | #if ENABLE_BGP_VNC |
d62a17ae | 7926 | vnc_zebra_init(bm->master); |
65efcfce LB |
7927 | #endif |
7928 | ||
d62a17ae | 7929 | /* BGP VTY commands installation. */ |
7930 | bgp_vty_init(); | |
7931 | ||
7932 | /* BGP inits. */ | |
7933 | bgp_attr_init(); | |
7934 | bgp_debug_init(); | |
7935 | bgp_dump_init(); | |
7936 | bgp_route_init(); | |
7937 | bgp_route_map_init(); | |
7938 | bgp_scan_vty_init(); | |
7939 | bgp_mplsvpn_init(); | |
65efcfce | 7940 | #if ENABLE_BGP_VNC |
d62a17ae | 7941 | rfapi_init(); |
65efcfce | 7942 | #endif |
d62a17ae | 7943 | bgp_ethernetvpn_init(); |
7c40bf39 | 7944 | bgp_flowspec_vty_init(); |
d62a17ae | 7945 | |
7946 | /* Access list initialize. */ | |
7947 | access_list_init(); | |
7948 | access_list_add_hook(peer_distribute_update); | |
7949 | access_list_delete_hook(peer_distribute_update); | |
7950 | ||
7951 | /* Filter list initialize. */ | |
7952 | bgp_filter_init(); | |
7953 | as_list_add_hook(peer_aslist_add); | |
7954 | as_list_delete_hook(peer_aslist_del); | |
7955 | ||
7956 | /* Prefix list initialize.*/ | |
7957 | prefix_list_init(); | |
7958 | prefix_list_add_hook(peer_prefix_list_update); | |
7959 | prefix_list_delete_hook(peer_prefix_list_update); | |
7960 | ||
7961 | /* Community list initialize. */ | |
7962 | bgp_clist = community_list_init(); | |
7963 | ||
7964 | /* BFD init */ | |
7965 | bgp_bfd_init(); | |
7966 | ||
7967 | cmd_variable_handler_register(bgp_viewvrf_var_handlers); | |
7968 | } | |
7969 | ||
7970 | void bgp_terminate(void) | |
7971 | { | |
7972 | struct bgp *bgp; | |
7973 | struct peer *peer; | |
7974 | struct listnode *node, *nnode; | |
7975 | struct listnode *mnode, *mnnode; | |
7976 | ||
7977 | QOBJ_UNREG(bm); | |
7978 | ||
7979 | /* Close the listener sockets first as this prevents peers from | |
7980 | * attempting | |
7981 | * to reconnect on receiving the peer unconfig message. In the presence | |
7982 | * of a large number of peers this will ensure that no peer is left with | |
7983 | * a dangling connection | |
7984 | */ | |
7985 | /* reverse bgp_master_init */ | |
7986 | bgp_close(); | |
c3004bc4 | 7987 | |
d62a17ae | 7988 | if (bm->listen_sockets) |
acdf5e25 | 7989 | list_delete_and_null(&bm->listen_sockets); |
d62a17ae | 7990 | |
7991 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) | |
7992 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
7993 | if (peer->status == Established | |
7994 | || peer->status == OpenSent | |
7995 | || peer->status == OpenConfirm) | |
7996 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
7997 | BGP_NOTIFY_CEASE_PEER_UNCONFIG); | |
7998 | ||
e208c8f9 DS |
7999 | if (bm->process_main_queue) |
8000 | work_queue_free_and_null(&bm->process_main_queue); | |
d62a17ae | 8001 | |
8002 | if (bm->t_rmap_update) | |
8003 | BGP_TIMER_OFF(bm->t_rmap_update); | |
955bfd98 | 8004 | |
e70e9f8e | 8005 | bgp_lp_finish(); |
545acafb | 8006 | } |