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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" | |
14454c9f | 55 | #include "bgpd/bgp_errors.h" |
718e3744 | 56 | #include "bgpd/bgp_community.h" |
57 | #include "bgpd/bgp_attr.h" | |
58 | #include "bgpd/bgp_regex.h" | |
59 | #include "bgpd/bgp_clist.h" | |
60 | #include "bgpd/bgp_fsm.h" | |
61 | #include "bgpd/bgp_packet.h" | |
62 | #include "bgpd/bgp_zebra.h" | |
63 | #include "bgpd/bgp_open.h" | |
64 | #include "bgpd/bgp_filter.h" | |
65 | #include "bgpd/bgp_nexthop.h" | |
66 | #include "bgpd/bgp_damp.h" | |
67 | #include "bgpd/bgp_mplsvpn.h" | |
49e5a4a0 | 68 | #ifdef ENABLE_BGP_VNC |
f8b6f499 LB |
69 | #include "bgpd/rfapi/bgp_rfapi_cfg.h" |
70 | #include "bgpd/rfapi/rfapi_backend.h" | |
65efcfce | 71 | #endif |
7ef5a232 | 72 | #include "bgpd/bgp_evpn.h" |
718e3744 | 73 | #include "bgpd/bgp_advertise.h" |
74 | #include "bgpd/bgp_network.h" | |
75 | #include "bgpd/bgp_vty.h" | |
165b5fff | 76 | #include "bgpd/bgp_mpath.h" |
fc9a856f | 77 | #include "bgpd/bgp_nht.h" |
3f9c7369 | 78 | #include "bgpd/bgp_updgrp.h" |
c43ed2e4 | 79 | #include "bgpd/bgp_bfd.h" |
4a1ab8e4 | 80 | #include "bgpd/bgp_memory.h" |
784d3a42 | 81 | #include "bgpd/bgp_evpn_vty.h" |
2d4ee774 | 82 | #include "bgpd/bgp_keepalives.h" |
56257a44 | 83 | #include "bgpd/bgp_io.h" |
41d6d607 | 84 | #include "bgpd/bgp_ecommunity.h" |
7c40bf39 | 85 | #include "bgpd/bgp_flowspec.h" |
955bfd98 | 86 | #include "bgpd/bgp_labelpool.h" |
f3d32faa | 87 | #include "bgpd/bgp_pbr.h" |
dcc68b5e | 88 | #include "bgpd/bgp_addpath.h" |
85c8d83b | 89 | #include "bgpd/bgp_evpn_private.h" |
48ecf8f5 | 90 | #include "bgpd/bgp_mac.h" |
73d70fa6 DL |
91 | |
92 | DEFINE_MTYPE_STATIC(BGPD, PEER_TX_SHUTDOWN_MSG, "Peer shutdown message (TX)"); | |
85c8d83b | 93 | DEFINE_MTYPE_STATIC(BGPD, BGP_EVPN_INFO, "BGP EVPN instance information"); |
19df7279 DL |
94 | DEFINE_QOBJ_TYPE(bgp_master) |
95 | DEFINE_QOBJ_TYPE(bgp) | |
96 | DEFINE_QOBJ_TYPE(peer) | |
2b9bcf30 | 97 | DEFINE_HOOK(bgp_inst_delete, (struct bgp *bgp), (bgp)) |
19df7279 | 98 | |
718e3744 | 99 | /* BGP process wide configuration. */ |
100 | static struct bgp_master bgp_master; | |
101 | ||
102 | /* BGP process wide configuration pointer to export. */ | |
103 | struct bgp_master *bm; | |
104 | ||
105 | /* BGP community-list. */ | |
106 | struct community_list_handler *bgp_clist; | |
6b0655a2 | 107 | |
37fe7731 DS |
108 | unsigned int multipath_num = MULTIPATH_NUM; |
109 | ||
d62a17ae | 110 | static void bgp_if_finish(struct bgp *bgp); |
cc32742c | 111 | static void peer_drop_dynamic_neighbor(struct peer *peer); |
b33adb7c | 112 | |
ad4cbda1 | 113 | extern struct zclient *zclient; |
1ff9a340 | 114 | |
e5619c28 PG |
115 | /* handle main socket creation or deletion */ |
116 | static int bgp_check_main_socket(bool create, struct bgp *bgp) | |
117 | { | |
118 | static int bgp_server_main_created; | |
e5619c28 | 119 | |
d8729f8c | 120 | if (create) { |
e5619c28 PG |
121 | if (bgp_server_main_created) |
122 | return 0; | |
123 | if (bgp_socket(bgp, bm->port, bm->address) < 0) | |
124 | return BGP_ERR_INVALID_VALUE; | |
125 | bgp_server_main_created = 1; | |
126 | return 0; | |
127 | } | |
128 | if (!bgp_server_main_created) | |
129 | return 0; | |
e5619c28 PG |
130 | bgp_close(); |
131 | bgp_server_main_created = 0; | |
132 | return 0; | |
133 | } | |
134 | ||
d62a17ae | 135 | void bgp_session_reset(struct peer *peer) |
1ff9a340 | 136 | { |
d62a17ae | 137 | if (peer->doppelganger && (peer->doppelganger->status != Deleted) |
138 | && !(CHECK_FLAG(peer->doppelganger->flags, PEER_FLAG_CONFIG_NODE))) | |
139 | peer_delete(peer->doppelganger); | |
1ff9a340 | 140 | |
d62a17ae | 141 | BGP_EVENT_ADD(peer, BGP_Stop); |
1ff9a340 DS |
142 | } |
143 | ||
144 | /* | |
145 | * During session reset, we may delete the doppelganger peer, which would | |
146 | * be the next node to the current node. If the session reset was invoked | |
147 | * during walk of peer list, we would end up accessing the freed next | |
148 | * node. This function moves the next node along. | |
149 | */ | |
d62a17ae | 150 | static void bgp_session_reset_safe(struct peer *peer, struct listnode **nnode) |
1ff9a340 | 151 | { |
d62a17ae | 152 | struct listnode *n; |
153 | struct peer *npeer; | |
1ff9a340 | 154 | |
d62a17ae | 155 | n = (nnode) ? *nnode : NULL; |
156 | npeer = (n) ? listgetdata(n) : NULL; | |
1ff9a340 | 157 | |
d62a17ae | 158 | if (peer->doppelganger && (peer->doppelganger->status != Deleted) |
159 | && !(CHECK_FLAG(peer->doppelganger->flags, | |
160 | PEER_FLAG_CONFIG_NODE))) { | |
161 | if (peer->doppelganger == npeer) | |
162 | /* nnode and *nnode are confirmed to be non-NULL here */ | |
163 | *nnode = (*nnode)->next; | |
164 | peer_delete(peer->doppelganger); | |
165 | } | |
1ff9a340 | 166 | |
d62a17ae | 167 | BGP_EVENT_ADD(peer, BGP_Stop); |
1ff9a340 DS |
168 | } |
169 | ||
718e3744 | 170 | /* BGP global flag manipulation. */ |
d62a17ae | 171 | int bgp_option_set(int flag) |
172 | { | |
173 | switch (flag) { | |
174 | case BGP_OPT_NO_FIB: | |
d62a17ae | 175 | case BGP_OPT_NO_LISTEN: |
0b014ea6 | 176 | case BGP_OPT_NO_ZEBRA: |
d62a17ae | 177 | SET_FLAG(bm->options, flag); |
178 | break; | |
179 | default: | |
180 | return BGP_ERR_INVALID_FLAG; | |
181 | } | |
182 | return 0; | |
183 | } | |
184 | ||
185 | int bgp_option_unset(int flag) | |
186 | { | |
187 | switch (flag) { | |
d62a17ae | 188 | /* Fall through. */ |
0b014ea6 | 189 | case BGP_OPT_NO_ZEBRA: |
d62a17ae | 190 | case BGP_OPT_NO_FIB: |
d62a17ae | 191 | UNSET_FLAG(bm->options, flag); |
192 | break; | |
193 | default: | |
194 | return BGP_ERR_INVALID_FLAG; | |
195 | } | |
196 | return 0; | |
197 | } | |
198 | ||
199 | int bgp_option_check(int flag) | |
200 | { | |
201 | return CHECK_FLAG(bm->options, flag); | |
718e3744 | 202 | } |
6b0655a2 | 203 | |
718e3744 | 204 | /* Internal function to set BGP structure configureation flag. */ |
d62a17ae | 205 | static void bgp_config_set(struct bgp *bgp, int config) |
718e3744 | 206 | { |
d62a17ae | 207 | SET_FLAG(bgp->config, config); |
718e3744 | 208 | } |
209 | ||
d62a17ae | 210 | static void bgp_config_unset(struct bgp *bgp, int config) |
718e3744 | 211 | { |
d62a17ae | 212 | UNSET_FLAG(bgp->config, config); |
718e3744 | 213 | } |
214 | ||
d62a17ae | 215 | static int bgp_config_check(struct bgp *bgp, int config) |
718e3744 | 216 | { |
d62a17ae | 217 | return CHECK_FLAG(bgp->config, config); |
718e3744 | 218 | } |
6b0655a2 | 219 | |
e65fe398 MS |
220 | /* Set BGP router identifier; distinguish between explicit config and other |
221 | * cases. | |
222 | */ | |
223 | static int bgp_router_id_set(struct bgp *bgp, const struct in_addr *id, | |
224 | bool is_config) | |
718e3744 | 225 | { |
d62a17ae | 226 | struct peer *peer; |
227 | struct listnode *node, *nnode; | |
718e3744 | 228 | |
d62a17ae | 229 | if (IPV4_ADDR_SAME(&bgp->router_id, id)) |
230 | return 0; | |
718e3744 | 231 | |
d62a17ae | 232 | /* EVPN uses router id in RD, withdraw them */ |
94c2f693 | 233 | if (is_evpn_enabled()) |
2951a7a4 | 234 | bgp_evpn_handle_router_id_update(bgp, true); |
2d48ee25 | 235 | |
2951a7a4 | 236 | vpn_handle_router_id_update(bgp, true, is_config); |
636f7608 | 237 | |
d62a17ae | 238 | IPV4_ADDR_COPY(&bgp->router_id, id); |
718e3744 | 239 | |
d62a17ae | 240 | /* Set all peer's local identifier with this value. */ |
241 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
242 | IPV4_ADDR_COPY(&peer->local_id, id); | |
718e3744 | 243 | |
d62a17ae | 244 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
245 | peer->last_reset = PEER_DOWN_RID_CHANGE; | |
246 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
247 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
248 | } | |
249 | } | |
14c1a7bf | 250 | |
d62a17ae | 251 | /* EVPN uses router id in RD, update them */ |
94c2f693 | 252 | if (is_evpn_enabled()) |
2951a7a4 | 253 | bgp_evpn_handle_router_id_update(bgp, false); |
2d48ee25 | 254 | |
2951a7a4 | 255 | vpn_handle_router_id_update(bgp, false, is_config); |
636f7608 | 256 | |
d62a17ae | 257 | return 0; |
718e3744 | 258 | } |
259 | ||
d62a17ae | 260 | void bgp_router_id_zebra_bump(vrf_id_t vrf_id, const struct prefix *router_id) |
0e6cb743 | 261 | { |
d62a17ae | 262 | struct listnode *node, *nnode; |
263 | struct bgp *bgp; | |
36dc7588 | 264 | struct in_addr *addr = NULL; |
265 | ||
266 | if (router_id != NULL) | |
267 | addr = (struct in_addr *)&(router_id->u.prefix4); | |
0e6cb743 | 268 | |
d62a17ae | 269 | if (vrf_id == VRF_DEFAULT) { |
270 | /* Router-id change for default VRF has to also update all | |
271 | * views. */ | |
272 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) { | |
273 | if (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) | |
274 | continue; | |
0e6cb743 | 275 | |
36dc7588 | 276 | if (addr) |
277 | bgp->router_id_zebra = *addr; | |
278 | else | |
279 | addr = &bgp->router_id_zebra; | |
280 | ||
281 | if (!bgp->router_id_static.s_addr) { | |
282 | /* Router ID is updated if there are no active | |
283 | * peer sessions | |
284 | */ | |
285 | if (bgp->established_peers == 0) { | |
286 | if (BGP_DEBUG(zebra, ZEBRA)) | |
137147c6 DS |
287 | zlog_debug( |
288 | "RID change : vrf %s(%u), RTR ID %s", | |
289 | bgp->name_pretty, | |
290 | bgp->vrf_id, | |
291 | inet_ntoa(*addr)); | |
2951a7a4 | 292 | bgp_router_id_set(bgp, addr, false); |
36dc7588 | 293 | } |
294 | } | |
d62a17ae | 295 | } |
296 | } else { | |
297 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
298 | if (bgp) { | |
36dc7588 | 299 | if (addr) |
300 | bgp->router_id_zebra = *addr; | |
301 | else | |
302 | addr = &bgp->router_id_zebra; | |
303 | ||
304 | if (!bgp->router_id_static.s_addr) { | |
305 | /* Router ID is updated if there are no active | |
306 | * peer sessions | |
307 | */ | |
308 | if (bgp->established_peers == 0) { | |
309 | if (BGP_DEBUG(zebra, ZEBRA)) | |
137147c6 DS |
310 | zlog_debug( |
311 | "RID change : vrf %s(%u), RTR ID %s", | |
312 | bgp->name_pretty, | |
313 | bgp->vrf_id, | |
314 | inet_ntoa(*addr)); | |
2951a7a4 | 315 | bgp_router_id_set(bgp, addr, false); |
36dc7588 | 316 | } |
317 | } | |
0e6cb743 | 318 | |
d62a17ae | 319 | } |
320 | } | |
0e6cb743 DL |
321 | } |
322 | ||
3dc339cd | 323 | void bgp_router_id_static_set(struct bgp *bgp, struct in_addr id) |
0e6cb743 | 324 | { |
d62a17ae | 325 | bgp->router_id_static = id; |
975a328e DA |
326 | bgp_router_id_set(bgp, |
327 | id.s_addr != INADDR_ANY ? &id : &bgp->router_id_zebra, | |
2951a7a4 | 328 | true /* is config */); |
0e6cb743 DL |
329 | } |
330 | ||
718e3744 | 331 | /* BGP's cluster-id control. */ |
d62a17ae | 332 | int bgp_cluster_id_set(struct bgp *bgp, struct in_addr *cluster_id) |
718e3744 | 333 | { |
d62a17ae | 334 | struct peer *peer; |
335 | struct listnode *node, *nnode; | |
718e3744 | 336 | |
d62a17ae | 337 | if (bgp_config_check(bgp, BGP_CONFIG_CLUSTER_ID) |
338 | && IPV4_ADDR_SAME(&bgp->cluster_id, cluster_id)) | |
339 | return 0; | |
718e3744 | 340 | |
d62a17ae | 341 | IPV4_ADDR_COPY(&bgp->cluster_id, cluster_id); |
342 | bgp_config_set(bgp, BGP_CONFIG_CLUSTER_ID); | |
718e3744 | 343 | |
d62a17ae | 344 | /* Clear all IBGP peer. */ |
345 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
346 | if (peer->sort != BGP_PEER_IBGP) | |
347 | continue; | |
718e3744 | 348 | |
d62a17ae | 349 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
350 | peer->last_reset = PEER_DOWN_CLID_CHANGE; | |
351 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
352 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
353 | } | |
354 | } | |
355 | return 0; | |
718e3744 | 356 | } |
357 | ||
d62a17ae | 358 | int bgp_cluster_id_unset(struct bgp *bgp) |
718e3744 | 359 | { |
d62a17ae | 360 | struct peer *peer; |
361 | struct listnode *node, *nnode; | |
718e3744 | 362 | |
d62a17ae | 363 | if (!bgp_config_check(bgp, BGP_CONFIG_CLUSTER_ID)) |
364 | return 0; | |
718e3744 | 365 | |
d62a17ae | 366 | bgp->cluster_id.s_addr = 0; |
367 | bgp_config_unset(bgp, BGP_CONFIG_CLUSTER_ID); | |
718e3744 | 368 | |
d62a17ae | 369 | /* Clear all IBGP peer. */ |
370 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
371 | if (peer->sort != BGP_PEER_IBGP) | |
372 | continue; | |
718e3744 | 373 | |
d62a17ae | 374 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
375 | peer->last_reset = PEER_DOWN_CLID_CHANGE; | |
376 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
377 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
378 | } | |
379 | } | |
380 | return 0; | |
718e3744 | 381 | } |
6b0655a2 | 382 | |
65957886 SH |
383 | /* time_t value that is monotonicly increasing |
384 | * and uneffected by adjustments to system clock | |
385 | */ | |
d62a17ae | 386 | time_t bgp_clock(void) |
65957886 | 387 | { |
d62a17ae | 388 | struct timeval tv; |
65957886 | 389 | |
d62a17ae | 390 | monotime(&tv); |
391 | return tv.tv_sec; | |
65957886 SH |
392 | } |
393 | ||
718e3744 | 394 | /* BGP timer configuration. */ |
3dc339cd DA |
395 | void bgp_timers_set(struct bgp *bgp, uint32_t keepalive, uint32_t holdtime, |
396 | uint32_t connect_retry) | |
718e3744 | 397 | { |
d62a17ae | 398 | bgp->default_keepalive = |
399 | (keepalive < holdtime / 3 ? keepalive : holdtime / 3); | |
400 | bgp->default_holdtime = holdtime; | |
5d5393b9 | 401 | bgp->default_connect_retry = connect_retry; |
718e3744 | 402 | } |
403 | ||
5d5393b9 | 404 | /* mostly for completeness - CLI uses its own defaults */ |
3dc339cd | 405 | void bgp_timers_unset(struct bgp *bgp) |
718e3744 | 406 | { |
d62a17ae | 407 | bgp->default_keepalive = BGP_DEFAULT_KEEPALIVE; |
408 | bgp->default_holdtime = BGP_DEFAULT_HOLDTIME; | |
5d5393b9 | 409 | bgp->default_connect_retry = BGP_DEFAULT_CONNECT_RETRY; |
718e3744 | 410 | } |
6b0655a2 | 411 | |
718e3744 | 412 | /* BGP confederation configuration. */ |
d62a17ae | 413 | int bgp_confederation_id_set(struct bgp *bgp, as_t as) |
414 | { | |
415 | struct peer *peer; | |
416 | struct listnode *node, *nnode; | |
417 | int already_confed; | |
418 | ||
419 | if (as == 0) | |
420 | return BGP_ERR_INVALID_AS; | |
421 | ||
422 | /* Remember - were we doing confederation before? */ | |
423 | already_confed = bgp_config_check(bgp, BGP_CONFIG_CONFEDERATION); | |
424 | bgp->confed_id = as; | |
425 | bgp_config_set(bgp, BGP_CONFIG_CONFEDERATION); | |
426 | ||
427 | /* If we were doing confederation already, this is just an external | |
428 | AS change. Just Reset EBGP sessions, not CONFED sessions. If we | |
429 | were not doing confederation before, reset all EBGP sessions. */ | |
430 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
469cbb0f DS |
431 | bgp_peer_sort_t ptype = peer_sort(peer); |
432 | ||
d62a17ae | 433 | /* We're looking for peers who's AS is not local or part of our |
434 | confederation. */ | |
435 | if (already_confed) { | |
469cbb0f | 436 | if (ptype == BGP_PEER_EBGP) { |
d62a17ae | 437 | peer->local_as = as; |
438 | if (BGP_IS_VALID_STATE_FOR_NOTIF( | |
439 | peer->status)) { | |
440 | peer->last_reset = | |
441 | PEER_DOWN_CONFED_ID_CHANGE; | |
442 | bgp_notify_send( | |
443 | peer, BGP_NOTIFY_CEASE, | |
444 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
445 | } else | |
446 | bgp_session_reset_safe(peer, &nnode); | |
447 | } | |
448 | } else { | |
449 | /* Not doign confederation before, so reset every | |
450 | non-local | |
451 | session */ | |
469cbb0f | 452 | if (ptype != BGP_PEER_IBGP) { |
d62a17ae | 453 | /* Reset the local_as to be our EBGP one */ |
469cbb0f | 454 | if (ptype == BGP_PEER_EBGP) |
d62a17ae | 455 | peer->local_as = as; |
456 | if (BGP_IS_VALID_STATE_FOR_NOTIF( | |
457 | peer->status)) { | |
458 | peer->last_reset = | |
459 | PEER_DOWN_CONFED_ID_CHANGE; | |
460 | bgp_notify_send( | |
461 | peer, BGP_NOTIFY_CEASE, | |
462 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
463 | } else | |
464 | bgp_session_reset_safe(peer, &nnode); | |
465 | } | |
466 | } | |
718e3744 | 467 | } |
d62a17ae | 468 | return 0; |
718e3744 | 469 | } |
470 | ||
d62a17ae | 471 | int bgp_confederation_id_unset(struct bgp *bgp) |
718e3744 | 472 | { |
d62a17ae | 473 | struct peer *peer; |
474 | struct listnode *node, *nnode; | |
475 | ||
476 | bgp->confed_id = 0; | |
477 | bgp_config_unset(bgp, BGP_CONFIG_CONFEDERATION); | |
718e3744 | 478 | |
d62a17ae | 479 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { |
480 | /* We're looking for peers who's AS is not local */ | |
481 | if (peer_sort(peer) != BGP_PEER_IBGP) { | |
482 | peer->local_as = bgp->as; | |
483 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
484 | peer->last_reset = PEER_DOWN_CONFED_ID_CHANGE; | |
485 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
486 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
487 | } | |
718e3744 | 488 | |
d62a17ae | 489 | else |
490 | bgp_session_reset_safe(peer, &nnode); | |
491 | } | |
492 | } | |
493 | return 0; | |
718e3744 | 494 | } |
495 | ||
d62a17ae | 496 | /* Is an AS part of the confed or not? */ |
3dc339cd | 497 | bool bgp_confederation_peers_check(struct bgp *bgp, as_t as) |
718e3744 | 498 | { |
d62a17ae | 499 | int i; |
718e3744 | 500 | |
d62a17ae | 501 | if (!bgp) |
3dc339cd | 502 | return false; |
718e3744 | 503 | |
d62a17ae | 504 | for (i = 0; i < bgp->confed_peers_cnt; i++) |
505 | if (bgp->confed_peers[i] == as) | |
3dc339cd | 506 | return true; |
718e3744 | 507 | |
3dc339cd | 508 | return false; |
d62a17ae | 509 | } |
718e3744 | 510 | |
d62a17ae | 511 | /* Add an AS to the confederation set. */ |
512 | int bgp_confederation_peers_add(struct bgp *bgp, as_t as) | |
513 | { | |
514 | struct peer *peer; | |
515 | struct listnode *node, *nnode; | |
516 | ||
517 | if (!bgp) | |
518 | return BGP_ERR_INVALID_BGP; | |
519 | ||
520 | if (bgp->as == as) | |
521 | return BGP_ERR_INVALID_AS; | |
522 | ||
523 | if (bgp_confederation_peers_check(bgp, as)) | |
524 | return -1; | |
525 | ||
526 | if (bgp->confed_peers) | |
527 | bgp->confed_peers = | |
528 | XREALLOC(MTYPE_BGP_CONFED_LIST, bgp->confed_peers, | |
529 | (bgp->confed_peers_cnt + 1) * sizeof(as_t)); | |
530 | else | |
531 | bgp->confed_peers = | |
532 | XMALLOC(MTYPE_BGP_CONFED_LIST, | |
533 | (bgp->confed_peers_cnt + 1) * sizeof(as_t)); | |
534 | ||
535 | bgp->confed_peers[bgp->confed_peers_cnt] = as; | |
536 | bgp->confed_peers_cnt++; | |
537 | ||
538 | if (bgp_config_check(bgp, BGP_CONFIG_CONFEDERATION)) { | |
539 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
540 | if (peer->as == as) { | |
541 | peer->local_as = bgp->as; | |
542 | if (BGP_IS_VALID_STATE_FOR_NOTIF( | |
543 | peer->status)) { | |
544 | peer->last_reset = | |
545 | PEER_DOWN_CONFED_PEER_CHANGE; | |
546 | bgp_notify_send( | |
547 | peer, BGP_NOTIFY_CEASE, | |
548 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
549 | } else | |
550 | bgp_session_reset_safe(peer, &nnode); | |
551 | } | |
552 | } | |
553 | } | |
554 | return 0; | |
718e3744 | 555 | } |
556 | ||
557 | /* Delete an AS from the confederation set. */ | |
d62a17ae | 558 | int bgp_confederation_peers_remove(struct bgp *bgp, as_t as) |
559 | { | |
560 | int i; | |
561 | int j; | |
562 | struct peer *peer; | |
563 | struct listnode *node, *nnode; | |
564 | ||
565 | if (!bgp) | |
566 | return -1; | |
567 | ||
568 | if (!bgp_confederation_peers_check(bgp, as)) | |
569 | return -1; | |
570 | ||
571 | for (i = 0; i < bgp->confed_peers_cnt; i++) | |
572 | if (bgp->confed_peers[i] == as) | |
573 | for (j = i + 1; j < bgp->confed_peers_cnt; j++) | |
574 | bgp->confed_peers[j - 1] = bgp->confed_peers[j]; | |
575 | ||
576 | bgp->confed_peers_cnt--; | |
577 | ||
578 | if (bgp->confed_peers_cnt == 0) { | |
579 | if (bgp->confed_peers) | |
580 | XFREE(MTYPE_BGP_CONFED_LIST, bgp->confed_peers); | |
581 | bgp->confed_peers = NULL; | |
582 | } else | |
583 | bgp->confed_peers = | |
584 | XREALLOC(MTYPE_BGP_CONFED_LIST, bgp->confed_peers, | |
585 | bgp->confed_peers_cnt * sizeof(as_t)); | |
586 | ||
587 | /* Now reset any peer who's remote AS has just been removed from the | |
588 | CONFED */ | |
589 | if (bgp_config_check(bgp, BGP_CONFIG_CONFEDERATION)) { | |
590 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
591 | if (peer->as == as) { | |
592 | peer->local_as = bgp->confed_id; | |
593 | if (BGP_IS_VALID_STATE_FOR_NOTIF( | |
594 | peer->status)) { | |
595 | peer->last_reset = | |
596 | PEER_DOWN_CONFED_PEER_CHANGE; | |
597 | bgp_notify_send( | |
598 | peer, BGP_NOTIFY_CEASE, | |
599 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
600 | } else | |
601 | bgp_session_reset_safe(peer, &nnode); | |
602 | } | |
603 | } | |
718e3744 | 604 | } |
718e3744 | 605 | |
d62a17ae | 606 | return 0; |
718e3744 | 607 | } |
6b0655a2 | 608 | |
718e3744 | 609 | /* Local preference configuration. */ |
d7c0a89a | 610 | int bgp_default_local_preference_set(struct bgp *bgp, uint32_t local_pref) |
718e3744 | 611 | { |
d62a17ae | 612 | if (!bgp) |
613 | return -1; | |
718e3744 | 614 | |
d62a17ae | 615 | bgp->default_local_pref = local_pref; |
718e3744 | 616 | |
d62a17ae | 617 | return 0; |
718e3744 | 618 | } |
619 | ||
d62a17ae | 620 | int bgp_default_local_preference_unset(struct bgp *bgp) |
718e3744 | 621 | { |
d62a17ae | 622 | if (!bgp) |
623 | return -1; | |
718e3744 | 624 | |
d62a17ae | 625 | bgp->default_local_pref = BGP_DEFAULT_LOCAL_PREF; |
718e3744 | 626 | |
d62a17ae | 627 | return 0; |
718e3744 | 628 | } |
6b0655a2 | 629 | |
3f9c7369 | 630 | /* Local preference configuration. */ |
d7c0a89a | 631 | int bgp_default_subgroup_pkt_queue_max_set(struct bgp *bgp, uint32_t queue_size) |
3f9c7369 | 632 | { |
d62a17ae | 633 | if (!bgp) |
634 | return -1; | |
3f9c7369 | 635 | |
d62a17ae | 636 | bgp->default_subgroup_pkt_queue_max = queue_size; |
3f9c7369 | 637 | |
d62a17ae | 638 | return 0; |
3f9c7369 DS |
639 | } |
640 | ||
d62a17ae | 641 | int bgp_default_subgroup_pkt_queue_max_unset(struct bgp *bgp) |
3f9c7369 | 642 | { |
d62a17ae | 643 | if (!bgp) |
644 | return -1; | |
645 | bgp->default_subgroup_pkt_queue_max = | |
646 | BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX; | |
3f9c7369 | 647 | |
d62a17ae | 648 | return 0; |
3f9c7369 DS |
649 | } |
650 | ||
f14e6fdb | 651 | /* Listen limit configuration. */ |
d62a17ae | 652 | int bgp_listen_limit_set(struct bgp *bgp, int listen_limit) |
f14e6fdb | 653 | { |
d62a17ae | 654 | if (!bgp) |
655 | return -1; | |
f14e6fdb | 656 | |
d62a17ae | 657 | bgp->dynamic_neighbors_limit = listen_limit; |
f14e6fdb | 658 | |
d62a17ae | 659 | return 0; |
f14e6fdb DS |
660 | } |
661 | ||
d62a17ae | 662 | int bgp_listen_limit_unset(struct bgp *bgp) |
f14e6fdb | 663 | { |
d62a17ae | 664 | if (!bgp) |
665 | return -1; | |
f14e6fdb | 666 | |
d62a17ae | 667 | bgp->dynamic_neighbors_limit = BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT; |
f14e6fdb | 668 | |
d62a17ae | 669 | return 0; |
f14e6fdb DS |
670 | } |
671 | ||
5c525538 RW |
672 | int bgp_map_afi_safi_iana2int(iana_afi_t pkt_afi, iana_safi_t pkt_safi, |
673 | afi_t *afi, safi_t *safi) | |
9cabb64b | 674 | { |
d62a17ae | 675 | /* Map from IANA values to internal values, return error if |
676 | * values are unrecognized. | |
677 | */ | |
678 | *afi = afi_iana2int(pkt_afi); | |
679 | *safi = safi_iana2int(pkt_safi); | |
680 | if (*afi == AFI_MAX || *safi == SAFI_MAX) | |
681 | return -1; | |
9cabb64b | 682 | |
d62a17ae | 683 | return 0; |
9cabb64b | 684 | } |
685 | ||
d62a17ae | 686 | int bgp_map_afi_safi_int2iana(afi_t afi, safi_t safi, iana_afi_t *pkt_afi, |
5c525538 | 687 | iana_safi_t *pkt_safi) |
9cabb64b | 688 | { |
d62a17ae | 689 | /* Map from internal values to IANA values, return error if |
690 | * internal values are bad (unexpected). | |
691 | */ | |
692 | if (afi == AFI_MAX || safi == SAFI_MAX) | |
693 | return -1; | |
694 | *pkt_afi = afi_int2iana(afi); | |
695 | *pkt_safi = safi_int2iana(safi); | |
696 | return 0; | |
9cabb64b | 697 | } |
698 | ||
d62a17ae | 699 | struct peer_af *peer_af_create(struct peer *peer, afi_t afi, safi_t safi) |
3f9c7369 | 700 | { |
d62a17ae | 701 | struct peer_af *af; |
702 | int afid; | |
210ec2a0 | 703 | struct bgp *bgp; |
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 | |
210ec2a0 | 712 | bgp = peer->bgp; |
d62a17ae | 713 | assert(peer->peer_af_array[afid] == NULL); |
3f9c7369 | 714 | |
d62a17ae | 715 | /* Allocate new peer af */ |
716 | af = XCALLOC(MTYPE_BGP_PEER_AF, sizeof(struct peer_af)); | |
c8560b44 | 717 | |
d62a17ae | 718 | peer->peer_af_array[afid] = af; |
719 | af->afi = afi; | |
720 | af->safi = safi; | |
721 | af->afid = afid; | |
722 | af->peer = peer; | |
210ec2a0 | 723 | bgp->af_peer_count[afi][safi]++; |
3f9c7369 | 724 | |
d62a17ae | 725 | return af; |
3f9c7369 DS |
726 | } |
727 | ||
d62a17ae | 728 | struct peer_af *peer_af_find(struct peer *peer, afi_t afi, safi_t safi) |
3f9c7369 | 729 | { |
d62a17ae | 730 | int afid; |
3f9c7369 | 731 | |
d62a17ae | 732 | if (!peer) |
733 | return NULL; | |
3f9c7369 | 734 | |
d62a17ae | 735 | afid = afindex(afi, safi); |
736 | if (afid >= BGP_AF_MAX) | |
737 | return NULL; | |
3f9c7369 | 738 | |
d62a17ae | 739 | return peer->peer_af_array[afid]; |
3f9c7369 DS |
740 | } |
741 | ||
d62a17ae | 742 | int peer_af_delete(struct peer *peer, afi_t afi, safi_t safi) |
3f9c7369 | 743 | { |
d62a17ae | 744 | struct peer_af *af; |
745 | int afid; | |
210ec2a0 | 746 | struct bgp *bgp; |
3f9c7369 | 747 | |
d62a17ae | 748 | if (!peer) |
749 | return -1; | |
3f9c7369 | 750 | |
d62a17ae | 751 | afid = afindex(afi, safi); |
752 | if (afid >= BGP_AF_MAX) | |
753 | return -1; | |
3f9c7369 | 754 | |
d62a17ae | 755 | af = peer->peer_af_array[afid]; |
756 | if (!af) | |
757 | return -1; | |
3f9c7369 | 758 | |
210ec2a0 | 759 | bgp = peer->bgp; |
d62a17ae | 760 | bgp_stop_announce_route_timer(af); |
3f9c7369 | 761 | |
d62a17ae | 762 | if (PAF_SUBGRP(af)) { |
763 | if (BGP_DEBUG(update_groups, UPDATE_GROUPS)) | |
764 | zlog_debug("u%" PRIu64 ":s%" PRIu64 " remove peer %s", | |
765 | af->subgroup->update_group->id, | |
766 | af->subgroup->id, peer->host); | |
767 | } | |
3f9c7369 | 768 | |
210ec2a0 | 769 | |
d62a17ae | 770 | update_subgroup_remove_peer(af->subgroup, af); |
3f9c7369 | 771 | |
210ec2a0 AS |
772 | if (bgp->af_peer_count[afi][safi]) |
773 | bgp->af_peer_count[afi][safi]--; | |
774 | ||
d62a17ae | 775 | peer->peer_af_array[afid] = NULL; |
776 | XFREE(MTYPE_BGP_PEER_AF, af); | |
777 | return 0; | |
3f9c7369 DS |
778 | } |
779 | ||
eb821189 | 780 | /* Peer comparison function for sorting. */ |
d62a17ae | 781 | int peer_cmp(struct peer *p1, struct peer *p2) |
718e3744 | 782 | { |
d62a17ae | 783 | if (p1->group && !p2->group) |
784 | return -1; | |
0aaa34db | 785 | |
d62a17ae | 786 | if (!p1->group && p2->group) |
787 | return 1; | |
0aaa34db | 788 | |
d62a17ae | 789 | if (p1->group == p2->group) { |
790 | if (p1->conf_if && !p2->conf_if) | |
791 | return -1; | |
0aaa34db | 792 | |
d62a17ae | 793 | if (!p1->conf_if && p2->conf_if) |
794 | return 1; | |
0aaa34db | 795 | |
d62a17ae | 796 | if (p1->conf_if && p2->conf_if) |
797 | return if_cmp_name_func(p1->conf_if, p2->conf_if); | |
798 | } else | |
799 | return strcmp(p1->group->name, p2->group->name); | |
0aaa34db | 800 | |
d62a17ae | 801 | return sockunion_cmp(&p1->su, &p2->su); |
718e3744 | 802 | } |
803 | ||
d8b87afe | 804 | static unsigned int peer_hash_key_make(const void *p) |
dd793e4a | 805 | { |
d8b87afe | 806 | const struct peer *peer = p; |
d62a17ae | 807 | return sockunion_hash(&peer->su); |
dd793e4a DW |
808 | } |
809 | ||
74df8d6d | 810 | static bool peer_hash_same(const void *p1, const void *p2) |
dd793e4a | 811 | { |
d62a17ae | 812 | const struct peer *peer1 = p1; |
813 | const struct peer *peer2 = p2; | |
814 | return (sockunion_same(&peer1->su, &peer2->su) | |
815 | && CHECK_FLAG(peer1->flags, PEER_FLAG_CONFIG_NODE) | |
816 | == CHECK_FLAG(peer2->flags, PEER_FLAG_CONFIG_NODE)); | |
dd793e4a DW |
817 | } |
818 | ||
9fb964de PM |
819 | void peer_flag_inherit(struct peer *peer, uint32_t flag) |
820 | { | |
821 | bool group_val; | |
822 | ||
823 | /* Skip if peer is not a peer-group member. */ | |
824 | if (!peer_group_active(peer)) | |
825 | return; | |
826 | ||
827 | /* Unset override flag to signal inheritance from peer-group. */ | |
828 | UNSET_FLAG(peer->flags_override, flag); | |
829 | ||
830 | /* | |
831 | * Inherit flag state from peer-group. If the flag of the peer-group is | |
832 | * not being inverted, the peer must inherit the inverse of the current | |
833 | * peer-group flag state. | |
834 | */ | |
835 | group_val = CHECK_FLAG(peer->group->conf->flags, flag); | |
836 | if (!CHECK_FLAG(peer->group->conf->flags_invert, flag) | |
837 | && CHECK_FLAG(peer->flags_invert, flag)) | |
838 | COND_FLAG(peer->flags, flag, !group_val); | |
839 | else | |
840 | COND_FLAG(peer->flags, flag, group_val); | |
841 | } | |
842 | ||
d7c0a89a | 843 | int peer_af_flag_check(struct peer *peer, afi_t afi, safi_t safi, uint32_t flag) |
718e3744 | 844 | { |
d62a17ae | 845 | return CHECK_FLAG(peer->af_flags[afi][safi], flag); |
718e3744 | 846 | } |
847 | ||
598ce6bd PM |
848 | void peer_af_flag_inherit(struct peer *peer, afi_t afi, safi_t safi, |
849 | uint32_t flag) | |
88b8ed8d | 850 | { |
527de3dc PM |
851 | bool group_val; |
852 | ||
598ce6bd PM |
853 | /* Skip if peer is not a peer-group member. */ |
854 | if (!peer_group_active(peer)) | |
855 | return; | |
88b8ed8d | 856 | |
598ce6bd PM |
857 | /* Unset override flag to signal inheritance from peer-group. */ |
858 | UNSET_FLAG(peer->af_flags_override[afi][safi], flag); | |
88b8ed8d | 859 | |
527de3dc PM |
860 | /* |
861 | * Inherit flag state from peer-group. If the flag of the peer-group is | |
862 | * not being inverted, the peer must inherit the inverse of the current | |
863 | * peer-group flag state. | |
864 | */ | |
865 | group_val = CHECK_FLAG(peer->group->conf->af_flags[afi][safi], flag); | |
866 | if (!CHECK_FLAG(peer->group->conf->af_flags_invert[afi][safi], flag) | |
867 | && CHECK_FLAG(peer->af_flags_invert[afi][safi], flag)) | |
868 | COND_FLAG(peer->af_flags[afi][safi], flag, !group_val); | |
598ce6bd | 869 | else |
527de3dc | 870 | COND_FLAG(peer->af_flags[afi][safi], flag, group_val); |
598ce6bd | 871 | } |
88b8ed8d | 872 | |
6d85b15b | 873 | /* Check peer's AS number and determines if this peer is IBGP or EBGP */ |
82417ac2 | 874 | static inline bgp_peer_sort_t peer_calc_sort(struct peer *peer) |
718e3744 | 875 | { |
d62a17ae | 876 | struct bgp *bgp; |
718e3744 | 877 | |
d62a17ae | 878 | bgp = peer->bgp; |
718e3744 | 879 | |
d62a17ae | 880 | /* Peer-group */ |
881 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
882 | if (peer->as_type == AS_INTERNAL) | |
883 | return BGP_PEER_IBGP; | |
66b199b2 | 884 | |
d62a17ae | 885 | else if (peer->as_type == AS_EXTERNAL) |
886 | return BGP_PEER_EBGP; | |
66b199b2 | 887 | |
b575a12c A |
888 | else if (peer->as_type == AS_SPECIFIED && peer->as) { |
889 | assert(bgp); | |
d62a17ae | 890 | return (bgp->as == peer->as ? BGP_PEER_IBGP |
891 | : BGP_PEER_EBGP); | |
b575a12c | 892 | } |
66b199b2 | 893 | |
d62a17ae | 894 | else { |
895 | struct peer *peer1; | |
d4f8b537 | 896 | |
897 | assert(peer->group); | |
d62a17ae | 898 | peer1 = listnode_head(peer->group->peer); |
899 | ||
900 | if (peer1) | |
901 | return peer1->sort; | |
902 | } | |
903 | return BGP_PEER_INTERNAL; | |
904 | } | |
905 | ||
906 | /* Normal peer */ | |
907 | if (bgp && CHECK_FLAG(bgp->config, BGP_CONFIG_CONFEDERATION)) { | |
908 | if (peer->local_as == 0) | |
909 | return BGP_PEER_INTERNAL; | |
910 | ||
911 | if (peer->local_as == peer->as) { | |
912 | if (bgp->as == bgp->confed_id) { | |
913 | if (peer->local_as == bgp->as) | |
914 | return BGP_PEER_IBGP; | |
915 | else | |
916 | return BGP_PEER_EBGP; | |
917 | } else { | |
918 | if (peer->local_as == bgp->confed_id) | |
919 | return BGP_PEER_EBGP; | |
920 | else | |
921 | return BGP_PEER_IBGP; | |
922 | } | |
923 | } | |
924 | ||
925 | if (bgp_confederation_peers_check(bgp, peer->as)) | |
926 | return BGP_PEER_CONFED; | |
927 | ||
928 | return BGP_PEER_EBGP; | |
929 | } else { | |
faa16034 DS |
930 | if (peer->as_type == AS_UNSPECIFIED) { |
931 | /* check if in peer-group with AS information */ | |
932 | if (peer->group | |
933 | && (peer->group->conf->as_type != AS_UNSPECIFIED)) { | |
934 | if (peer->group->conf->as_type | |
935 | == AS_SPECIFIED) { | |
936 | if (peer->local_as | |
937 | == peer->group->conf->as) | |
938 | return BGP_PEER_IBGP; | |
939 | else | |
940 | return BGP_PEER_EBGP; | |
941 | } else if (peer->group->conf->as_type | |
942 | == AS_INTERNAL) | |
943 | return BGP_PEER_IBGP; | |
944 | else | |
945 | return BGP_PEER_EBGP; | |
946 | } | |
947 | /* no AS information anywhere, let caller know */ | |
948 | return BGP_PEER_UNSPECIFIED; | |
949 | } else if (peer->as_type != AS_SPECIFIED) | |
d62a17ae | 950 | return (peer->as_type == AS_INTERNAL ? BGP_PEER_IBGP |
951 | : BGP_PEER_EBGP); | |
952 | ||
953 | return (peer->local_as == 0 | |
954 | ? BGP_PEER_INTERNAL | |
955 | : peer->local_as == peer->as ? BGP_PEER_IBGP | |
956 | : BGP_PEER_EBGP); | |
957 | } | |
718e3744 | 958 | } |
959 | ||
6d85b15b | 960 | /* Calculate and cache the peer "sort" */ |
d62a17ae | 961 | bgp_peer_sort_t peer_sort(struct peer *peer) |
962 | { | |
963 | peer->sort = peer_calc_sort(peer); | |
964 | return peer->sort; | |
965 | } | |
966 | ||
bf0d28dc DS |
967 | bgp_peer_sort_t peer_sort_lookup(struct peer *peer) |
968 | { | |
969 | return peer->sort; | |
970 | } | |
971 | ||
d62a17ae | 972 | static void peer_free(struct peer *peer) |
973 | { | |
dcc68b5e MS |
974 | afi_t afi; |
975 | safi_t safi; | |
976 | ||
d62a17ae | 977 | assert(peer->status == Deleted); |
978 | ||
979 | QOBJ_UNREG(peer); | |
980 | ||
981 | /* this /ought/ to have been done already through bgp_stop earlier, | |
982 | * but just to be sure.. | |
983 | */ | |
984 | bgp_timer_set(peer); | |
424ab01d QY |
985 | bgp_reads_off(peer); |
986 | bgp_writes_off(peer); | |
987 | assert(!peer->t_write); | |
988 | assert(!peer->t_read); | |
d62a17ae | 989 | BGP_EVENT_FLUSH(peer); |
990 | ||
424ab01d QY |
991 | pthread_mutex_destroy(&peer->io_mtx); |
992 | ||
d62a17ae | 993 | /* Free connected nexthop, if present */ |
994 | if (CHECK_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE) | |
995 | && !peer_dynamic_neighbor(peer)) | |
996 | bgp_delete_connected_nexthop(family2afi(peer->su.sa.sa_family), | |
997 | peer); | |
998 | ||
999 | XFREE(MTYPE_PEER_TX_SHUTDOWN_MSG, peer->tx_shutdown_message); | |
1000 | ||
e1b36e13 QY |
1001 | XFREE(MTYPE_PEER_DESC, peer->desc); |
1002 | XFREE(MTYPE_BGP_PEER_HOST, peer->host); | |
1003 | XFREE(MTYPE_BGP_PEER_HOST, peer->domainname); | |
1004 | XFREE(MTYPE_BGP_PEER_IFNAME, peer->ifname); | |
d62a17ae | 1005 | |
1006 | /* Update source configuration. */ | |
1007 | if (peer->update_source) { | |
1008 | sockunion_free(peer->update_source); | |
1009 | peer->update_source = NULL; | |
1010 | } | |
1011 | ||
e1b36e13 | 1012 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); |
d62a17ae | 1013 | |
0a22ddfb | 1014 | XFREE(MTYPE_TMP, peer->notify.data); |
d62a17ae | 1015 | memset(&peer->notify, 0, sizeof(struct bgp_notify)); |
1016 | ||
e208c8f9 DS |
1017 | if (peer->clear_node_queue) |
1018 | work_queue_free_and_null(&peer->clear_node_queue); | |
d62a17ae | 1019 | |
1020 | bgp_sync_delete(peer); | |
1021 | ||
e1b36e13 | 1022 | XFREE(MTYPE_PEER_CONF_IF, peer->conf_if); |
d62a17ae | 1023 | |
1024 | bfd_info_free(&(peer->bfd_info)); | |
1025 | ||
dcc68b5e MS |
1026 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
1027 | for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++) { | |
1028 | bgp_addpath_set_peer_type(peer, afi, safi, | |
1029 | BGP_ADDPATH_NONE); | |
1030 | } | |
1031 | } | |
1032 | ||
d62a17ae | 1033 | bgp_unlock(peer->bgp); |
1034 | ||
1035 | memset(peer, 0, sizeof(struct peer)); | |
1036 | ||
1037 | XFREE(MTYPE_BGP_PEER, peer); | |
1038 | } | |
1039 | ||
200df115 | 1040 | /* increase reference count on a struct peer */ |
d62a17ae | 1041 | struct peer *peer_lock_with_caller(const char *name, struct peer *peer) |
200df115 | 1042 | { |
d62a17ae | 1043 | assert(peer && (peer->lock >= 0)); |
28066f4b DS |
1044 | |
1045 | #if 0 | |
1046 | zlog_debug("%s peer_lock %p %d", name, peer, peer->lock); | |
1047 | #endif | |
d62a17ae | 1048 | |
1049 | peer->lock++; | |
1050 | ||
1051 | return peer; | |
200df115 | 1052 | } |
1053 | ||
1054 | /* decrease reference count on a struct peer | |
1055 | * struct peer is freed and NULL returned if last reference | |
1056 | */ | |
d62a17ae | 1057 | struct peer *peer_unlock_with_caller(const char *name, struct peer *peer) |
200df115 | 1058 | { |
d62a17ae | 1059 | assert(peer && (peer->lock > 0)); |
28066f4b DS |
1060 | |
1061 | #if 0 | |
1062 | zlog_debug("%s peer_unlock %p %d", name, peer, peer->lock); | |
1063 | #endif | |
200df115 | 1064 | |
d62a17ae | 1065 | peer->lock--; |
1066 | ||
1067 | if (peer->lock == 0) { | |
1068 | peer_free(peer); | |
1069 | return NULL; | |
1070 | } | |
1071 | ||
1072 | return peer; | |
200df115 | 1073 | } |
794b37d5 | 1074 | /* BGP GR changes */ |
1075 | ||
1076 | int bgp_global_gr_init(struct bgp *bgp) | |
1077 | { | |
1078 | if (BGP_DEBUG(graceful_restart, GRACEFUL_RESTART)) | |
1079 | zlog_debug("%s called ..", __func__); | |
1080 | ||
2ba1fe69 | 1081 | int local_GLOBAL_GR_FSM[BGP_GLOBAL_GR_MODE][BGP_GLOBAL_GR_EVENT_CMD] = { |
794b37d5 | 1082 | /* GLOBAL_HELPER Mode */ |
1083 | { | |
1084 | /*Event -> */ | |
1085 | /*GLOBAL_GR_cmd*/ /*no_Global_GR_cmd*/ | |
1086 | GLOBAL_GR, GLOBAL_INVALID, | |
1087 | /*GLOBAL_DISABLE_cmd*/ /*no_Global_Disable_cmd*/ | |
1088 | GLOBAL_DISABLE, GLOBAL_INVALID | |
1089 | }, | |
1090 | /* GLOBAL_GR Mode */ | |
1091 | { | |
1092 | /*Event -> */ | |
1093 | /*GLOBAL_GR_cmd*/ /*no_Global_GR_cmd*/ | |
1094 | GLOBAL_INVALID, GLOBAL_HELPER, | |
1095 | /*GLOBAL_DISABLE_cmd*/ /*no_Global_Disable_cmd*/ | |
1096 | GLOBAL_DISABLE, GLOBAL_INVALID | |
1097 | }, | |
1098 | /* GLOBAL_DISABLE Mode */ | |
1099 | { | |
1100 | /*Event -> */ | |
1101 | /*GLOBAL_GR_cmd */ /*no_Global_GR_cmd*/ | |
1102 | GLOBAL_GR, GLOBAL_INVALID, | |
1103 | /*GLOBAL_DISABLE_cmd*//*no_Global_Disable_cmd*/ | |
1104 | GLOBAL_INVALID, GLOBAL_HELPER | |
1105 | }, | |
1106 | /* GLOBAL_INVALID Mode */ | |
1107 | { | |
1108 | /*Event -> */ | |
1109 | /*GLOBAL_GR_cmd*/ /*no_Global_GR_cmd*/ | |
1110 | GLOBAL_INVALID, GLOBAL_INVALID, | |
1111 | /*GLOBAL_DISABLE_cmd*/ /*no_Global_Disable_cmd*/ | |
1112 | GLOBAL_INVALID, GLOBAL_INVALID | |
1113 | } | |
1114 | }; | |
1115 | memcpy(bgp->GLOBAL_GR_FSM, local_GLOBAL_GR_FSM, | |
1116 | sizeof(local_GLOBAL_GR_FSM)); | |
1117 | ||
1118 | bgp->global_gr_present_state = GLOBAL_HELPER; | |
dc95985f | 1119 | bgp->present_zebra_gr_state = ZEBRA_GR_DISABLE; |
794b37d5 | 1120 | |
1121 | return BGP_GR_SUCCESS; | |
1122 | } | |
1123 | ||
1124 | int bgp_peer_gr_init(struct peer *peer) | |
1125 | { | |
1126 | if (BGP_DEBUG(graceful_restart, GRACEFUL_RESTART)) | |
1127 | zlog_debug("%s called ..", __func__); | |
1128 | ||
2ba1fe69 | 1129 | struct bgp_peer_gr local_Peer_GR_FSM[BGP_PEER_GR_MODE] |
1130 | [BGP_PEER_GR_EVENT_CMD] = { | |
794b37d5 | 1131 | { |
1132 | /* PEER_HELPER Mode */ | |
1133 | /* Event-> */ /* PEER_GR_CMD */ /* NO_PEER_GR_CMD */ | |
1134 | { PEER_GR, bgp_peer_gr_action }, {PEER_INVALID, NULL }, | |
2ba1fe69 | 1135 | /* Event-> */ /* PEER_DISABLE_CMD */ /* NO_PEER_DISABLE_CMD */ |
794b37d5 | 1136 | {PEER_DISABLE, bgp_peer_gr_action }, {PEER_INVALID, NULL }, |
1137 | /* Event-> */ /* PEER_HELPER_cmd */ /* NO_PEER_HELPER_CMD */ | |
1138 | { PEER_INVALID, NULL }, {PEER_GLOBAL_INHERIT, | |
1139 | bgp_peer_gr_action } | |
1140 | }, | |
1141 | { | |
1142 | /* PEER_GR Mode */ | |
1143 | /* Event-> */ /* PEER_GR_CMD */ /* NO_PEER_GR_CMD */ | |
1144 | { PEER_INVALID, NULL }, { PEER_GLOBAL_INHERIT, | |
1145 | bgp_peer_gr_action }, | |
2ba1fe69 | 1146 | /* Event-> */ /* PEER_DISABLE_CMD */ /* NO_PEER_DISABLE_CMD */ |
794b37d5 | 1147 | {PEER_DISABLE, bgp_peer_gr_action }, { PEER_INVALID, NULL }, |
1148 | /* Event-> */ /* PEER_HELPER_cmd */ /* NO_PEER_HELPER_CMD */ | |
1149 | { PEER_HELPER, bgp_peer_gr_action }, { PEER_INVALID, NULL } | |
1150 | }, | |
1151 | { | |
1152 | /* PEER_DISABLE Mode */ | |
1153 | /* Event-> */ /* PEER_GR_CMD */ /* NO_PEER_GR_CMD */ | |
1154 | { PEER_GR, bgp_peer_gr_action }, { PEER_INVALID, NULL }, | |
2ba1fe69 | 1155 | /* Event-> */ /* PEER_DISABLE_CMD */ /* NO_PEER_DISABLE_CMD */ |
794b37d5 | 1156 | { PEER_INVALID, NULL }, { PEER_GLOBAL_INHERIT, |
1157 | bgp_peer_gr_action }, | |
1158 | /* Event-> */ /* PEER_HELPER_cmd */ /* NO_PEER_HELPER_CMD */ | |
1159 | { PEER_HELPER, bgp_peer_gr_action }, { PEER_INVALID, NULL } | |
1160 | }, | |
1161 | { | |
1162 | /* PEER_INVALID Mode */ | |
1163 | /* Event-> */ /* PEER_GR_CMD */ /* NO_PEER_GR_CMD */ | |
1164 | { PEER_INVALID, NULL }, { PEER_INVALID, NULL }, | |
2ba1fe69 | 1165 | /* Event-> */ /* PEER_DISABLE_CMD */ /* NO_PEER_DISABLE_CMD */ |
794b37d5 | 1166 | { PEER_INVALID, NULL }, { PEER_INVALID, NULL }, |
1167 | /* Event-> */ /* PEER_HELPER_cmd */ /* NO_PEER_HELPER_CMD */ | |
1168 | { PEER_INVALID, NULL }, { PEER_INVALID, NULL }, | |
1169 | }, | |
1170 | { | |
1171 | /* PEER_GLOBAL_INHERIT Mode */ | |
1172 | /* Event-> */ /* PEER_GR_CMD */ /* NO_PEER_GR_CMD */ | |
1173 | { PEER_GR, bgp_peer_gr_action }, { PEER_INVALID, NULL }, | |
2ba1fe69 | 1174 | /* Event-> */ /* PEER_DISABLE_CMD */ /* NO_PEER_DISABLE_CMD */ |
794b37d5 | 1175 | { PEER_DISABLE, bgp_peer_gr_action}, { PEER_INVALID, NULL }, |
1176 | /* Event-> */ /* PEER_HELPER_cmd */ /* NO_PEER_HELPER_CMD */ | |
1177 | { PEER_HELPER, bgp_peer_gr_action }, { PEER_INVALID, NULL } | |
1178 | } | |
1179 | }; | |
1180 | memcpy(&peer->PEER_GR_FSM, local_Peer_GR_FSM, | |
1181 | sizeof(local_Peer_GR_FSM)); | |
1182 | peer->peer_gr_present_state = PEER_GLOBAL_INHERIT; | |
1183 | bgp_peer_move_to_gr_mode(peer, PEER_GLOBAL_INHERIT); | |
1184 | ||
1185 | return BGP_GR_SUCCESS; | |
1186 | } | |
1ff9a340 | 1187 | |
200df115 | 1188 | /* Allocate new peer object, implicitely locked. */ |
d62a17ae | 1189 | struct peer *peer_new(struct bgp *bgp) |
1190 | { | |
1191 | afi_t afi; | |
1192 | safi_t safi; | |
1193 | struct peer *peer; | |
1194 | struct servent *sp; | |
1195 | ||
1196 | /* bgp argument is absolutely required */ | |
1197 | assert(bgp); | |
d62a17ae | 1198 | |
1199 | /* Allocate new peer. */ | |
1200 | peer = XCALLOC(MTYPE_BGP_PEER, sizeof(struct peer)); | |
1201 | ||
1202 | /* Set default value. */ | |
1203 | peer->fd = -1; | |
1204 | peer->v_start = BGP_INIT_START_TIMER; | |
5d5393b9 | 1205 | peer->v_connect = bgp->default_connect_retry; |
d62a17ae | 1206 | peer->status = Idle; |
1207 | peer->ostatus = Idle; | |
1208 | peer->cur_event = peer->last_event = peer->last_major_event = 0; | |
92375c91 | 1209 | peer->bgp = bgp_lock(bgp); |
d62a17ae | 1210 | peer = peer_lock(peer); /* initial reference */ |
d62a17ae | 1211 | peer->password = NULL; |
1212 | ||
27c05d4d | 1213 | /* Set default flags. */ |
05c7a1cc | 1214 | FOREACH_AFI_SAFI (afi, safi) { |
d8a9922d DS |
1215 | SET_FLAG(peer->af_flags[afi][safi], PEER_FLAG_SEND_COMMUNITY); |
1216 | SET_FLAG(peer->af_flags[afi][safi], | |
1217 | PEER_FLAG_SEND_EXT_COMMUNITY); | |
1218 | SET_FLAG(peer->af_flags[afi][safi], | |
1219 | PEER_FLAG_SEND_LARGE_COMMUNITY); | |
1220 | ||
1221 | SET_FLAG(peer->af_flags_invert[afi][safi], | |
1222 | PEER_FLAG_SEND_COMMUNITY); | |
1223 | SET_FLAG(peer->af_flags_invert[afi][safi], | |
1224 | PEER_FLAG_SEND_EXT_COMMUNITY); | |
1225 | SET_FLAG(peer->af_flags_invert[afi][safi], | |
1226 | PEER_FLAG_SEND_LARGE_COMMUNITY); | |
dcc68b5e | 1227 | peer->addpath_type[afi][safi] = BGP_ADDPATH_NONE; |
05c7a1cc | 1228 | } |
637315fc | 1229 | |
d62a17ae | 1230 | SET_FLAG(peer->sflags, PEER_STATUS_CAPABILITY_OPEN); |
718e3744 | 1231 | |
794b37d5 | 1232 | /* Initialize per peer bgp GR FSM */ |
1233 | bgp_peer_gr_init(peer); | |
1234 | ||
d62a17ae | 1235 | /* Create buffers. */ |
424ab01d | 1236 | peer->ibuf = stream_fifo_new(); |
d62a17ae | 1237 | peer->obuf = stream_fifo_new(); |
424ab01d | 1238 | pthread_mutex_init(&peer->io_mtx, NULL); |
0a91ff55 | 1239 | |
424ab01d | 1240 | /* We use a larger buffer for peer->obuf_work in the event that: |
d62a17ae | 1241 | * - We RX a BGP_UPDATE where the attributes alone are just |
1242 | * under BGP_MAX_PACKET_SIZE | |
1243 | * - The user configures an outbound route-map that does many as-path | |
09f6d019 QY |
1244 | * prepends or adds many communities. At most they can have |
1245 | * CMD_ARGC_MAX args in a route-map so there is a finite limit on how | |
1246 | * large they can make the attributes. | |
d62a17ae | 1247 | * |
1248 | * Having a buffer with BGP_MAX_PACKET_SIZE_OVERFLOW allows us to avoid | |
09f6d019 QY |
1249 | * bounds checking for every single attribute as we construct an |
1250 | * UPDATE. | |
d62a17ae | 1251 | */ |
424ab01d | 1252 | peer->obuf_work = |
d62a17ae | 1253 | stream_new(BGP_MAX_PACKET_SIZE + BGP_MAX_PACKET_SIZE_OVERFLOW); |
74ffbfe6 QY |
1254 | peer->ibuf_work = |
1255 | ringbuf_new(BGP_MAX_PACKET_SIZE * BGP_READ_PACKET_MAX); | |
1256 | ||
d62a17ae | 1257 | peer->scratch = stream_new(BGP_MAX_PACKET_SIZE); |
718e3744 | 1258 | |
d62a17ae | 1259 | bgp_sync_init(peer); |
718e3744 | 1260 | |
d62a17ae | 1261 | /* Get service port number. */ |
1262 | sp = getservbyname("bgp", "tcp"); | |
1263 | peer->port = (sp == NULL) ? BGP_PORT_DEFAULT : ntohs(sp->s_port); | |
718e3744 | 1264 | |
d62a17ae | 1265 | QOBJ_REG(peer, peer); |
1266 | return peer; | |
718e3744 | 1267 | } |
1268 | ||
1ff9a340 DS |
1269 | /* |
1270 | * This function is invoked when a duplicate peer structure associated with | |
1271 | * a neighbor is being deleted. If this about-to-be-deleted structure is | |
1272 | * the one with all the config, then we have to copy over the info. | |
1273 | */ | |
d62a17ae | 1274 | void peer_xfer_config(struct peer *peer_dst, struct peer *peer_src) |
1275 | { | |
1276 | struct peer_af *paf; | |
1277 | afi_t afi; | |
1278 | safi_t safi; | |
1279 | int afidx; | |
1280 | ||
1281 | assert(peer_src); | |
1282 | assert(peer_dst); | |
1283 | ||
1284 | /* The following function is used by both peer group config copy to | |
1285 | * individual peer and when we transfer config | |
1286 | */ | |
1287 | if (peer_src->change_local_as) | |
1288 | peer_dst->change_local_as = peer_src->change_local_as; | |
1289 | ||
1290 | /* peer flags apply */ | |
1291 | peer_dst->flags = peer_src->flags; | |
1292 | peer_dst->cap = peer_src->cap; | |
d62a17ae | 1293 | |
d7b3cda6 | 1294 | peer_dst->peer_gr_present_state = peer_src->peer_gr_present_state; |
1295 | peer_dst->peer_gr_new_status_flag = peer_src->peer_gr_new_status_flag; | |
1296 | ||
d62a17ae | 1297 | peer_dst->local_as = peer_src->local_as; |
d62a17ae | 1298 | peer_dst->port = peer_src->port; |
82417ac2 | 1299 | (void)peer_sort(peer_dst); |
d62a17ae | 1300 | peer_dst->rmap_type = peer_src->rmap_type; |
1301 | ||
1302 | /* Timers */ | |
1303 | peer_dst->holdtime = peer_src->holdtime; | |
1304 | peer_dst->keepalive = peer_src->keepalive; | |
1305 | peer_dst->connect = peer_src->connect; | |
1306 | peer_dst->v_holdtime = peer_src->v_holdtime; | |
1307 | peer_dst->v_keepalive = peer_src->v_keepalive; | |
1308 | peer_dst->routeadv = peer_src->routeadv; | |
1309 | peer_dst->v_routeadv = peer_src->v_routeadv; | |
1310 | ||
1311 | /* password apply */ | |
1312 | if (peer_src->password && !peer_dst->password) | |
1313 | peer_dst->password = | |
1314 | XSTRDUP(MTYPE_PEER_PASSWORD, peer_src->password); | |
1315 | ||
05c7a1cc QY |
1316 | FOREACH_AFI_SAFI (afi, safi) { |
1317 | peer_dst->afc[afi][safi] = peer_src->afc[afi][safi]; | |
1318 | peer_dst->af_flags[afi][safi] = peer_src->af_flags[afi][safi]; | |
1319 | peer_dst->allowas_in[afi][safi] = | |
1320 | peer_src->allowas_in[afi][safi]; | |
1321 | peer_dst->weight[afi][safi] = peer_src->weight[afi][safi]; | |
dcc68b5e MS |
1322 | peer_dst->addpath_type[afi][safi] = |
1323 | peer_src->addpath_type[afi][safi]; | |
05c7a1cc | 1324 | } |
d62a17ae | 1325 | |
1326 | for (afidx = BGP_AF_START; afidx < BGP_AF_MAX; afidx++) { | |
1327 | paf = peer_src->peer_af_array[afidx]; | |
1328 | if (paf != NULL) | |
1329 | peer_af_create(peer_dst, paf->afi, paf->safi); | |
1330 | } | |
1331 | ||
1332 | /* update-source apply */ | |
1333 | if (peer_src->update_source) { | |
1334 | if (peer_dst->update_source) | |
1335 | sockunion_free(peer_dst->update_source); | |
e1b36e13 | 1336 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer_dst->update_if); |
d62a17ae | 1337 | peer_dst->update_source = |
1338 | sockunion_dup(peer_src->update_source); | |
1339 | } else if (peer_src->update_if) { | |
0a22ddfb | 1340 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer_dst->update_if); |
d62a17ae | 1341 | if (peer_dst->update_source) { |
1342 | sockunion_free(peer_dst->update_source); | |
1343 | peer_dst->update_source = NULL; | |
1344 | } | |
1345 | peer_dst->update_if = | |
1346 | XSTRDUP(MTYPE_PEER_UPDATE_SOURCE, peer_src->update_if); | |
1347 | } | |
1348 | ||
1349 | if (peer_src->ifname) { | |
0a22ddfb | 1350 | XFREE(MTYPE_BGP_PEER_IFNAME, peer_dst->ifname); |
d62a17ae | 1351 | |
1352 | peer_dst->ifname = | |
1353 | XSTRDUP(MTYPE_BGP_PEER_IFNAME, peer_src->ifname); | |
1354 | } | |
1355 | } | |
1356 | ||
1357 | static int bgp_peer_conf_if_to_su_update_v4(struct peer *peer, | |
1358 | struct interface *ifp) | |
1359 | { | |
1360 | struct connected *ifc; | |
1361 | struct prefix p; | |
d7c0a89a | 1362 | uint32_t addr; |
d62a17ae | 1363 | struct listnode *node; |
1364 | ||
1365 | /* If our IPv4 address on the interface is /30 or /31, we can derive the | |
1366 | * IPv4 address of the other end. | |
1367 | */ | |
1368 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, ifc)) { | |
1369 | if (ifc->address && (ifc->address->family == AF_INET)) { | |
1370 | PREFIX_COPY_IPV4(&p, CONNECTED_PREFIX(ifc)); | |
1371 | if (p.prefixlen == 30) { | |
1372 | peer->su.sa.sa_family = AF_INET; | |
1373 | addr = ntohl(p.u.prefix4.s_addr); | |
1374 | if (addr % 4 == 1) | |
1375 | peer->su.sin.sin_addr.s_addr = | |
1376 | htonl(addr + 1); | |
1377 | else if (addr % 4 == 2) | |
1378 | peer->su.sin.sin_addr.s_addr = | |
1379 | htonl(addr - 1); | |
8ffedcea | 1380 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
d62a17ae | 1381 | peer->su.sin.sin_len = |
1382 | sizeof(struct sockaddr_in); | |
8ffedcea | 1383 | #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */ |
d62a17ae | 1384 | return 1; |
1385 | } else if (p.prefixlen == 31) { | |
1386 | peer->su.sa.sa_family = AF_INET; | |
1387 | addr = ntohl(p.u.prefix4.s_addr); | |
1388 | if (addr % 2 == 0) | |
1389 | peer->su.sin.sin_addr.s_addr = | |
1390 | htonl(addr + 1); | |
1391 | else | |
1392 | peer->su.sin.sin_addr.s_addr = | |
1393 | htonl(addr - 1); | |
8ffedcea | 1394 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
d62a17ae | 1395 | peer->su.sin.sin_len = |
1396 | sizeof(struct sockaddr_in); | |
8ffedcea | 1397 | #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */ |
d62a17ae | 1398 | return 1; |
1399 | } else if (bgp_debug_neighbor_events(peer)) | |
1400 | zlog_debug( | |
1401 | "%s: IPv4 interface address is not /30 or /31, v4 session not started", | |
1402 | peer->conf_if); | |
1403 | } | |
1404 | } | |
1405 | ||
1406 | return 0; | |
1407 | } | |
1408 | ||
3dc339cd DA |
1409 | static bool bgp_peer_conf_if_to_su_update_v6(struct peer *peer, |
1410 | struct interface *ifp) | |
d62a17ae | 1411 | { |
1412 | struct nbr_connected *ifc_nbr; | |
1413 | ||
1414 | /* Have we learnt the peer's IPv6 link-local address? */ | |
1415 | if (ifp->nbr_connected | |
1416 | && (ifc_nbr = listnode_head(ifp->nbr_connected))) { | |
1417 | peer->su.sa.sa_family = AF_INET6; | |
1418 | memcpy(&peer->su.sin6.sin6_addr, &ifc_nbr->address->u.prefix, | |
1419 | sizeof(struct in6_addr)); | |
a80beece | 1420 | #ifdef SIN6_LEN |
d62a17ae | 1421 | peer->su.sin6.sin6_len = sizeof(struct sockaddr_in6); |
a80beece | 1422 | #endif |
d62a17ae | 1423 | peer->su.sin6.sin6_scope_id = ifp->ifindex; |
3dc339cd | 1424 | return true; |
d62a17ae | 1425 | } |
8ffedcea | 1426 | |
3dc339cd | 1427 | return false; |
89ca90fa | 1428 | } |
1429 | ||
1430 | /* | |
1431 | * Set or reset the peer address socketunion structure based on the | |
1432 | * learnt/derived peer address. If the address has changed, update the | |
1433 | * password on the listen socket, if needed. | |
1434 | */ | |
d62a17ae | 1435 | void bgp_peer_conf_if_to_su_update(struct peer *peer) |
1436 | { | |
1437 | struct interface *ifp; | |
1438 | int prev_family; | |
1439 | int peer_addr_updated = 0; | |
1440 | ||
1441 | if (!peer->conf_if) | |
1442 | return; | |
1443 | ||
d12b745c DS |
1444 | /* |
1445 | * Our peer structure is stored in the bgp->peerhash | |
1446 | * release it before we modify anything. | |
1447 | */ | |
1448 | hash_release(peer->bgp->peerhash, peer); | |
1449 | ||
d62a17ae | 1450 | prev_family = peer->su.sa.sa_family; |
a36898e7 | 1451 | if ((ifp = if_lookup_by_name(peer->conf_if, peer->bgp->vrf_id))) { |
d62a17ae | 1452 | peer->ifp = ifp; |
1453 | /* If BGP unnumbered is not "v6only", we first see if we can | |
1454 | * derive the | |
1455 | * peer's IPv4 address. | |
1456 | */ | |
1457 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_IFPEER_V6ONLY)) | |
1458 | peer_addr_updated = | |
1459 | bgp_peer_conf_if_to_su_update_v4(peer, ifp); | |
1460 | ||
1461 | /* If "v6only" or we can't derive peer's IPv4 address, see if | |
1462 | * we've | |
1463 | * learnt the peer's IPv6 link-local address. This is from the | |
1464 | * source | |
1465 | * IPv6 address in router advertisement. | |
1466 | */ | |
1467 | if (!peer_addr_updated) | |
1468 | peer_addr_updated = | |
1469 | bgp_peer_conf_if_to_su_update_v6(peer, ifp); | |
1470 | } | |
1471 | /* If we could derive the peer address, we may need to install the | |
1472 | * password | |
1473 | * configured for the peer, if any, on the listen socket. Otherwise, | |
1474 | * mark | |
1475 | * that peer's address is not available and uninstall the password, if | |
1476 | * needed. | |
1477 | */ | |
1478 | if (peer_addr_updated) { | |
a14810f4 PM |
1479 | if (CHECK_FLAG(peer->flags, PEER_FLAG_PASSWORD) |
1480 | && prev_family == AF_UNSPEC) | |
d62a17ae | 1481 | bgp_md5_set(peer); |
1482 | } else { | |
a14810f4 PM |
1483 | if (CHECK_FLAG(peer->flags, PEER_FLAG_PASSWORD) |
1484 | && prev_family != AF_UNSPEC) | |
d62a17ae | 1485 | bgp_md5_unset(peer); |
1486 | peer->su.sa.sa_family = AF_UNSPEC; | |
1487 | memset(&peer->su.sin6.sin6_addr, 0, sizeof(struct in6_addr)); | |
1488 | } | |
1489 | ||
d12b745c DS |
1490 | /* |
1491 | * Since our su changed we need to del/add peer to the peerhash | |
1492 | */ | |
d62a17ae | 1493 | hash_get(peer->bgp->peerhash, peer, hash_alloc_intern); |
a80beece DS |
1494 | } |
1495 | ||
318cac96 DW |
1496 | static void bgp_recalculate_afi_safi_bestpaths(struct bgp *bgp, afi_t afi, |
1497 | safi_t safi) | |
1498 | { | |
1499 | struct bgp_node *rn, *nrn; | |
67009e22 | 1500 | struct bgp_table *table; |
318cac96 DW |
1501 | |
1502 | for (rn = bgp_table_top(bgp->rib[afi][safi]); rn; | |
1503 | rn = bgp_route_next(rn)) { | |
67009e22 DS |
1504 | table = bgp_node_get_bgp_table_info(rn); |
1505 | if (table != NULL) { | |
318cac96 DW |
1506 | /* Special handling for 2-level routing |
1507 | * tables. */ | |
a4d82a8a | 1508 | if (safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP |
318cac96 | 1509 | || safi == SAFI_EVPN) { |
67009e22 | 1510 | for (nrn = bgp_table_top(table); |
a4d82a8a PZ |
1511 | nrn; nrn = bgp_route_next(nrn)) |
1512 | bgp_process(bgp, nrn, afi, safi); | |
318cac96 DW |
1513 | } else |
1514 | bgp_process(bgp, rn, afi, safi); | |
1515 | } | |
1516 | } | |
1517 | } | |
1518 | ||
06370dac DW |
1519 | /* Force a bestpath recalculation for all prefixes. This is used |
1520 | * when 'bgp bestpath' commands are entered. | |
1521 | */ | |
d62a17ae | 1522 | void bgp_recalculate_all_bestpaths(struct bgp *bgp) |
1523 | { | |
1524 | afi_t afi; | |
1525 | safi_t safi; | |
d62a17ae | 1526 | |
05c7a1cc QY |
1527 | FOREACH_AFI_SAFI (afi, safi) { |
1528 | bgp_recalculate_afi_safi_bestpaths(bgp, afi, safi); | |
d62a17ae | 1529 | } |
06370dac DW |
1530 | } |
1531 | ||
19bd3dff DS |
1532 | /* |
1533 | * Create new BGP peer. | |
1534 | * | |
1535 | * conf_if and su are mutually exclusive if configuring from the cli. | |
1536 | * If we are handing a doppelganger, then we *must* pass in both | |
1537 | * the original peer's su and conf_if, so that we can appropriately | |
1538 | * track the bgp->peerhash( ie we don't want to remove the current | |
1539 | * one from the config ). | |
1540 | */ | |
d62a17ae | 1541 | struct peer *peer_create(union sockunion *su, const char *conf_if, |
1542 | struct bgp *bgp, as_t local_as, as_t remote_as, | |
1543 | int as_type, afi_t afi, safi_t safi, | |
1544 | struct peer_group *group) | |
1545 | { | |
1546 | int active; | |
1547 | struct peer *peer; | |
1548 | char buf[SU_ADDRSTRLEN]; | |
1549 | ||
1550 | peer = peer_new(bgp); | |
1551 | if (conf_if) { | |
1552 | peer->conf_if = XSTRDUP(MTYPE_PEER_CONF_IF, conf_if); | |
19bd3dff DS |
1553 | if (su) |
1554 | peer->su = *su; | |
1555 | else | |
1556 | bgp_peer_conf_if_to_su_update(peer); | |
0a22ddfb | 1557 | XFREE(MTYPE_BGP_PEER_HOST, peer->host); |
d62a17ae | 1558 | peer->host = XSTRDUP(MTYPE_BGP_PEER_HOST, conf_if); |
1559 | } else if (su) { | |
1560 | peer->su = *su; | |
1561 | sockunion2str(su, buf, SU_ADDRSTRLEN); | |
0a22ddfb | 1562 | XFREE(MTYPE_BGP_PEER_HOST, peer->host); |
d62a17ae | 1563 | peer->host = XSTRDUP(MTYPE_BGP_PEER_HOST, buf); |
1564 | } | |
1565 | peer->local_as = local_as; | |
1566 | peer->as = remote_as; | |
1567 | peer->as_type = as_type; | |
1568 | peer->local_id = bgp->router_id; | |
1569 | peer->v_holdtime = bgp->default_holdtime; | |
1570 | peer->v_keepalive = bgp->default_keepalive; | |
b90a8e13 PM |
1571 | peer->v_routeadv = (peer_sort(peer) == BGP_PEER_IBGP) |
1572 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
1573 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 1574 | |
1575 | peer = peer_lock(peer); /* bgp peer list reference */ | |
1576 | peer->group = group; | |
1577 | listnode_add_sort(bgp->peer, peer); | |
1578 | hash_get(bgp->peerhash, peer, hash_alloc_intern); | |
1579 | ||
4961a5a2 | 1580 | /* Adjust update-group coalesce timer heuristics for # peers. */ |
37a333fe | 1581 | if (bgp->heuristic_coalesce) { |
14b8641a QY |
1582 | long ct = BGP_DEFAULT_SUBGROUP_COALESCE_TIME |
1583 | + (bgp->peer->count | |
1584 | * BGP_PEER_ADJUST_SUBGROUP_COALESCE_TIME); | |
1585 | bgp->coalesce_time = MIN(BGP_MAX_SUBGROUP_COALESCE_TIME, ct); | |
1586 | } | |
4961a5a2 | 1587 | |
d62a17ae | 1588 | active = peer_active(peer); |
05912a17 DD |
1589 | if (!active) { |
1590 | if (peer->su.sa.sa_family == AF_UNSPEC) | |
1591 | peer->last_reset = PEER_DOWN_NBR_ADDR; | |
1592 | else | |
1593 | peer->last_reset = PEER_DOWN_NOAFI_ACTIVATED; | |
1594 | } | |
d62a17ae | 1595 | |
1596 | /* Last read and reset time set */ | |
1597 | peer->readtime = peer->resettime = bgp_clock(); | |
1598 | ||
1599 | /* Default TTL set. */ | |
a0903cd2 | 1600 | peer->ttl = (peer->sort == BGP_PEER_IBGP) ? MAXTTL : BGP_DEFAULT_TTL; |
d62a17ae | 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 | ||
794b37d5 | 1616 | bgp_peer_gr_flags_update(peer); |
36235319 | 1617 | BGP_GR_ROUTER_DETECT_AND_SEND_CAPABILITY_TO_ZEBRA(bgp, bgp->peer); |
dc95985f | 1618 | |
d62a17ae | 1619 | return peer; |
718e3744 | 1620 | } |
1621 | ||
dd793e4a | 1622 | /* Make accept BGP peer. This function is only called from the test code */ |
d62a17ae | 1623 | struct peer *peer_create_accept(struct bgp *bgp) |
eb821189 | 1624 | { |
d62a17ae | 1625 | struct peer *peer; |
eb821189 | 1626 | |
d62a17ae | 1627 | peer = peer_new(bgp); |
1ff9a340 | 1628 | |
d62a17ae | 1629 | peer = peer_lock(peer); /* bgp peer list reference */ |
1630 | listnode_add_sort(bgp->peer, peer); | |
eb821189 | 1631 | |
d62a17ae | 1632 | return peer; |
eb821189 | 1633 | } |
1634 | ||
318cac96 DW |
1635 | /* |
1636 | * Return true if we have a peer configured to use this afi/safi | |
1637 | */ | |
1638 | int bgp_afi_safi_peer_exists(struct bgp *bgp, afi_t afi, safi_t safi) | |
1639 | { | |
1640 | struct listnode *node; | |
1641 | struct peer *peer; | |
1642 | ||
1643 | for (ALL_LIST_ELEMENTS_RO(bgp->peer, node, peer)) { | |
1644 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE)) | |
1645 | continue; | |
1646 | ||
1647 | if (peer->afc[afi][safi]) | |
1648 | return 1; | |
1649 | } | |
1650 | ||
1651 | return 0; | |
1652 | } | |
1653 | ||
718e3744 | 1654 | /* Change peer's AS number. */ |
d62a17ae | 1655 | void peer_as_change(struct peer *peer, as_t as, int as_specified) |
1656 | { | |
469cbb0f | 1657 | bgp_peer_sort_t origtype, newtype; |
d62a17ae | 1658 | |
1659 | /* Stop peer. */ | |
1660 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
1661 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
1662 | peer->last_reset = PEER_DOWN_REMOTE_AS_CHANGE; | |
1663 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
1664 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
1665 | } else | |
1666 | bgp_session_reset(peer); | |
1667 | } | |
469cbb0f | 1668 | origtype = peer_sort_lookup(peer); |
d62a17ae | 1669 | peer->as = as; |
1670 | peer->as_type = as_specified; | |
1671 | ||
1672 | if (bgp_config_check(peer->bgp, BGP_CONFIG_CONFEDERATION) | |
1673 | && !bgp_confederation_peers_check(peer->bgp, as) | |
1674 | && peer->bgp->as != as) | |
1675 | peer->local_as = peer->bgp->confed_id; | |
1676 | else | |
1677 | peer->local_as = peer->bgp->as; | |
1678 | ||
469cbb0f | 1679 | newtype = peer_sort(peer); |
d62a17ae | 1680 | /* Advertisement-interval reset */ |
b90a8e13 | 1681 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_ROUTEADV)) { |
469cbb0f | 1682 | peer->v_routeadv = (newtype == BGP_PEER_IBGP) |
b90a8e13 PM |
1683 | ? BGP_DEFAULT_IBGP_ROUTEADV |
1684 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 1685 | } |
b90a8e13 | 1686 | |
d62a17ae | 1687 | /* TTL reset */ |
469cbb0f | 1688 | if (newtype == BGP_PEER_IBGP) |
d62a17ae | 1689 | peer->ttl = MAXTTL; |
469cbb0f | 1690 | else if (origtype == BGP_PEER_IBGP) |
a0903cd2 | 1691 | peer->ttl = BGP_DEFAULT_TTL; |
d62a17ae | 1692 | |
1693 | /* reflector-client reset */ | |
469cbb0f | 1694 | if (newtype != BGP_PEER_IBGP) { |
d62a17ae | 1695 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_UNICAST], |
1696 | PEER_FLAG_REFLECTOR_CLIENT); | |
1697 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_MULTICAST], | |
1698 | PEER_FLAG_REFLECTOR_CLIENT); | |
1699 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_LABELED_UNICAST], | |
1700 | PEER_FLAG_REFLECTOR_CLIENT); | |
1701 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_MPLS_VPN], | |
1702 | PEER_FLAG_REFLECTOR_CLIENT); | |
1703 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_ENCAP], | |
1704 | PEER_FLAG_REFLECTOR_CLIENT); | |
7c40bf39 | 1705 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_FLOWSPEC], |
1706 | PEER_FLAG_REFLECTOR_CLIENT); | |
d62a17ae | 1707 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_UNICAST], |
1708 | PEER_FLAG_REFLECTOR_CLIENT); | |
1709 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_MULTICAST], | |
1710 | PEER_FLAG_REFLECTOR_CLIENT); | |
1711 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_LABELED_UNICAST], | |
1712 | PEER_FLAG_REFLECTOR_CLIENT); | |
1713 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_MPLS_VPN], | |
1714 | PEER_FLAG_REFLECTOR_CLIENT); | |
1715 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_ENCAP], | |
1716 | PEER_FLAG_REFLECTOR_CLIENT); | |
7c40bf39 | 1717 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_FLOWSPEC], |
1718 | PEER_FLAG_REFLECTOR_CLIENT); | |
d62a17ae | 1719 | UNSET_FLAG(peer->af_flags[AFI_L2VPN][SAFI_EVPN], |
1720 | PEER_FLAG_REFLECTOR_CLIENT); | |
1721 | } | |
1722 | ||
1723 | /* local-as reset */ | |
469cbb0f | 1724 | if (newtype != BGP_PEER_EBGP) { |
d62a17ae | 1725 | peer->change_local_as = 0; |
a14810f4 PM |
1726 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS); |
1727 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
1728 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
d62a17ae | 1729 | } |
718e3744 | 1730 | } |
1731 | ||
1732 | /* If peer does not exist, create new one. If peer already exists, | |
1733 | set AS number to the peer. */ | |
d62a17ae | 1734 | int peer_remote_as(struct bgp *bgp, union sockunion *su, const char *conf_if, |
1735 | as_t *as, int as_type, afi_t afi, safi_t safi) | |
1736 | { | |
1737 | struct peer *peer; | |
1738 | as_t local_as; | |
1739 | ||
1740 | if (conf_if) | |
1741 | peer = peer_lookup_by_conf_if(bgp, conf_if); | |
1742 | else | |
1743 | peer = peer_lookup(bgp, su); | |
1744 | ||
1745 | if (peer) { | |
1746 | /* Not allowed for a dynamic peer. */ | |
1747 | if (peer_dynamic_neighbor(peer)) { | |
1748 | *as = peer->as; | |
1749 | return BGP_ERR_INVALID_FOR_DYNAMIC_PEER; | |
1750 | } | |
718e3744 | 1751 | |
d62a17ae | 1752 | /* When this peer is a member of peer-group. */ |
1753 | if (peer->group) { | |
faa16034 DS |
1754 | /* peer-group already has AS number/internal/external */ |
1755 | if (peer->group->conf->as | |
1756 | || peer->group->conf->as_type) { | |
d62a17ae | 1757 | /* Return peer group's AS number. */ |
1758 | *as = peer->group->conf->as; | |
1759 | return BGP_ERR_PEER_GROUP_MEMBER; | |
1760 | } | |
faa16034 DS |
1761 | |
1762 | bgp_peer_sort_t peer_sort_type = | |
1763 | peer_sort(peer->group->conf); | |
1764 | ||
1765 | /* Explicit AS numbers used, compare AS numbers */ | |
1766 | if (as_type == AS_SPECIFIED) { | |
1767 | if (((peer_sort_type == BGP_PEER_IBGP) | |
1768 | && (bgp->as != *as)) | |
1769 | || ((peer_sort_type == BGP_PEER_EBGP) | |
1770 | && (bgp->as == *as))) { | |
d62a17ae | 1771 | *as = peer->as; |
1772 | return BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT; | |
1773 | } | |
1774 | } else { | |
faa16034 DS |
1775 | /* internal/external used, compare as-types */ |
1776 | if (((peer_sort_type == BGP_PEER_IBGP) | |
1777 | && (as_type != AS_INTERNAL)) | |
1778 | || ((peer_sort_type == BGP_PEER_EBGP) | |
1779 | && (as_type != AS_EXTERNAL))) { | |
d62a17ae | 1780 | *as = peer->as; |
1781 | return BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT; | |
1782 | } | |
1783 | } | |
1784 | } | |
93406d87 | 1785 | |
d62a17ae | 1786 | /* Existing peer's AS number change. */ |
1787 | if (((peer->as_type == AS_SPECIFIED) && peer->as != *as) | |
1788 | || (peer->as_type != as_type)) | |
1789 | peer_as_change(peer, *as, as_type); | |
1790 | } else { | |
1791 | if (conf_if) | |
1792 | return BGP_ERR_NO_INTERFACE_CONFIG; | |
1793 | ||
1794 | /* If the peer is not part of our confederation, and its not an | |
1795 | iBGP peer then spoof the source AS */ | |
1796 | if (bgp_config_check(bgp, BGP_CONFIG_CONFEDERATION) | |
1797 | && !bgp_confederation_peers_check(bgp, *as) | |
1798 | && bgp->as != *as) | |
1799 | local_as = bgp->confed_id; | |
1800 | else | |
1801 | local_as = bgp->as; | |
1802 | ||
1803 | /* If this is IPv4 unicast configuration and "no bgp default | |
1804 | ipv4-unicast" is specified. */ | |
1805 | ||
892fedb6 | 1806 | if (CHECK_FLAG(bgp->flags, BGP_FLAG_NO_DEFAULT_IPV4) |
d62a17ae | 1807 | && afi == AFI_IP && safi == SAFI_UNICAST) |
1808 | peer_create(su, conf_if, bgp, local_as, *as, as_type, 0, | |
1809 | 0, NULL); | |
1810 | else | |
1811 | peer_create(su, conf_if, bgp, local_as, *as, as_type, | |
1812 | afi, safi, NULL); | |
1813 | } | |
718e3744 | 1814 | |
d62a17ae | 1815 | return 0; |
1816 | } | |
718e3744 | 1817 | |
9790f44f DS |
1818 | static void peer_group2peer_config_copy_af(struct peer_group *group, |
1819 | struct peer *peer, afi_t afi, | |
1820 | safi_t safi) | |
1821 | { | |
1822 | int in = FILTER_IN; | |
1823 | int out = FILTER_OUT; | |
4c391142 | 1824 | uint32_t flags_tmp; |
e7103a96 PM |
1825 | uint32_t pflags_ovrd; |
1826 | uint8_t *pfilter_ovrd; | |
9790f44f | 1827 | struct peer *conf; |
9790f44f DS |
1828 | |
1829 | conf = group->conf; | |
e7103a96 PM |
1830 | pflags_ovrd = peer->af_flags_override[afi][safi]; |
1831 | pfilter_ovrd = &peer->filter_override[afi][safi][in]; | |
9790f44f DS |
1832 | |
1833 | /* peer af_flags apply */ | |
4c391142 PM |
1834 | flags_tmp = conf->af_flags[afi][safi] & ~pflags_ovrd; |
1835 | flags_tmp ^= conf->af_flags_invert[afi][safi] | |
1836 | ^ peer->af_flags_invert[afi][safi]; | |
1837 | flags_tmp &= ~pflags_ovrd; | |
1838 | ||
1839 | UNSET_FLAG(peer->af_flags[afi][safi], ~pflags_ovrd); | |
1840 | SET_FLAG(peer->af_flags[afi][safi], flags_tmp); | |
1841 | SET_FLAG(peer->af_flags_invert[afi][safi], | |
1842 | conf->af_flags_invert[afi][safi]); | |
9790f44f DS |
1843 | |
1844 | /* maximum-prefix */ | |
e7103a96 PM |
1845 | if (!CHECK_FLAG(pflags_ovrd, PEER_FLAG_MAX_PREFIX)) { |
1846 | PEER_ATTR_INHERIT(peer, group, pmax[afi][safi]); | |
1847 | PEER_ATTR_INHERIT(peer, group, pmax_threshold[afi][safi]); | |
1848 | PEER_ATTR_INHERIT(peer, group, pmax_restart[afi][safi]); | |
1849 | } | |
9790f44f DS |
1850 | |
1851 | /* allowas-in */ | |
e7103a96 PM |
1852 | if (!CHECK_FLAG(pflags_ovrd, PEER_FLAG_ALLOWAS_IN)) |
1853 | PEER_ATTR_INHERIT(peer, group, allowas_in[afi][safi]); | |
9790f44f DS |
1854 | |
1855 | /* weight */ | |
e7103a96 PM |
1856 | if (!CHECK_FLAG(pflags_ovrd, PEER_FLAG_WEIGHT)) |
1857 | PEER_ATTR_INHERIT(peer, group, weight[afi][safi]); | |
9790f44f DS |
1858 | |
1859 | /* default-originate route-map */ | |
e7103a96 PM |
1860 | if (!CHECK_FLAG(pflags_ovrd, PEER_FLAG_DEFAULT_ORIGINATE)) { |
1861 | PEER_STR_ATTR_INHERIT(peer, group, default_rmap[afi][safi].name, | |
1862 | MTYPE_ROUTE_MAP_NAME); | |
1863 | PEER_ATTR_INHERIT(peer, group, default_rmap[afi][safi].map); | |
9790f44f DS |
1864 | } |
1865 | ||
1866 | /* inbound filter apply */ | |
e7103a96 PM |
1867 | if (!CHECK_FLAG(pfilter_ovrd[in], PEER_FT_DISTRIBUTE_LIST)) { |
1868 | PEER_STR_ATTR_INHERIT(peer, group, | |
1869 | filter[afi][safi].dlist[in].name, | |
1870 | MTYPE_BGP_FILTER_NAME); | |
1871 | PEER_ATTR_INHERIT(peer, group, | |
1872 | filter[afi][safi].dlist[in].alist); | |
9790f44f DS |
1873 | } |
1874 | ||
e7103a96 PM |
1875 | if (!CHECK_FLAG(pfilter_ovrd[in], PEER_FT_PREFIX_LIST)) { |
1876 | PEER_STR_ATTR_INHERIT(peer, group, | |
1877 | filter[afi][safi].plist[in].name, | |
1878 | MTYPE_BGP_FILTER_NAME); | |
1879 | PEER_ATTR_INHERIT(peer, group, | |
1880 | filter[afi][safi].plist[in].plist); | |
9790f44f DS |
1881 | } |
1882 | ||
e7103a96 PM |
1883 | if (!CHECK_FLAG(pfilter_ovrd[in], PEER_FT_FILTER_LIST)) { |
1884 | PEER_STR_ATTR_INHERIT(peer, group, | |
1885 | filter[afi][safi].aslist[in].name, | |
1886 | MTYPE_BGP_FILTER_NAME); | |
1887 | PEER_ATTR_INHERIT(peer, group, | |
1888 | filter[afi][safi].aslist[in].aslist); | |
9790f44f DS |
1889 | } |
1890 | ||
e7103a96 PM |
1891 | if (!CHECK_FLAG(pfilter_ovrd[RMAP_IN], PEER_FT_ROUTE_MAP)) { |
1892 | PEER_STR_ATTR_INHERIT(peer, group, | |
1893 | filter[afi][safi].map[in].name, | |
1894 | MTYPE_BGP_FILTER_NAME); | |
1895 | PEER_ATTR_INHERIT(peer, group, | |
1896 | filter[afi][safi].map[RMAP_IN].map); | |
9790f44f DS |
1897 | } |
1898 | ||
1899 | /* outbound filter apply */ | |
e7103a96 PM |
1900 | if (!CHECK_FLAG(pfilter_ovrd[out], PEER_FT_DISTRIBUTE_LIST)) { |
1901 | PEER_STR_ATTR_INHERIT(peer, group, | |
1902 | filter[afi][safi].dlist[out].name, | |
1903 | MTYPE_BGP_FILTER_NAME); | |
1904 | PEER_ATTR_INHERIT(peer, group, | |
1905 | filter[afi][safi].dlist[out].alist); | |
9790f44f DS |
1906 | } |
1907 | ||
e7103a96 PM |
1908 | if (!CHECK_FLAG(pfilter_ovrd[out], PEER_FT_PREFIX_LIST)) { |
1909 | PEER_STR_ATTR_INHERIT(peer, group, | |
1910 | filter[afi][safi].plist[out].name, | |
1911 | MTYPE_BGP_FILTER_NAME); | |
1912 | PEER_ATTR_INHERIT(peer, group, | |
1913 | filter[afi][safi].plist[out].plist); | |
9790f44f DS |
1914 | } |
1915 | ||
e7103a96 PM |
1916 | if (!CHECK_FLAG(pfilter_ovrd[out], PEER_FT_FILTER_LIST)) { |
1917 | PEER_STR_ATTR_INHERIT(peer, group, | |
1918 | filter[afi][safi].aslist[out].name, | |
1919 | MTYPE_BGP_FILTER_NAME); | |
1920 | PEER_ATTR_INHERIT(peer, group, | |
1921 | filter[afi][safi].aslist[out].aslist); | |
1922 | } | |
1923 | ||
1924 | if (!CHECK_FLAG(pfilter_ovrd[RMAP_OUT], PEER_FT_ROUTE_MAP)) { | |
1925 | PEER_STR_ATTR_INHERIT(peer, group, | |
1926 | filter[afi][safi].map[RMAP_OUT].name, | |
1927 | MTYPE_BGP_FILTER_NAME); | |
1928 | PEER_ATTR_INHERIT(peer, group, | |
1929 | filter[afi][safi].map[RMAP_OUT].map); | |
1930 | } | |
1931 | ||
1932 | /* nondirectional filter apply */ | |
1933 | if (!CHECK_FLAG(pfilter_ovrd[0], PEER_FT_UNSUPPRESS_MAP)) { | |
1934 | PEER_STR_ATTR_INHERIT(peer, group, filter[afi][safi].usmap.name, | |
1935 | MTYPE_BGP_FILTER_NAME); | |
1936 | PEER_ATTR_INHERIT(peer, group, filter[afi][safi].usmap.map); | |
9790f44f | 1937 | } |
dcc68b5e MS |
1938 | |
1939 | if (peer->addpath_type[afi][safi] == BGP_ADDPATH_NONE) { | |
1940 | peer->addpath_type[afi][safi] = conf->addpath_type[afi][safi]; | |
1941 | bgp_addpath_type_changed(conf->bgp); | |
1942 | } | |
9790f44f DS |
1943 | } |
1944 | ||
1945 | static int peer_activate_af(struct peer *peer, afi_t afi, safi_t safi) | |
d62a17ae | 1946 | { |
1947 | int active; | |
9bf904cc | 1948 | struct peer *other; |
718e3744 | 1949 | |
d62a17ae | 1950 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
e50f7cfd | 1951 | flog_err(EC_BGP_PEER_GROUP, "%s was called for peer-group %s", |
1c50c1c0 | 1952 | __func__, peer->host); |
d62a17ae | 1953 | return 1; |
1954 | } | |
3f9c7369 | 1955 | |
d62a17ae | 1956 | /* Do not activate a peer for both SAFI_UNICAST and SAFI_LABELED_UNICAST |
1957 | */ | |
1958 | if ((safi == SAFI_UNICAST && peer->afc[afi][SAFI_LABELED_UNICAST]) | |
1959 | || (safi == SAFI_LABELED_UNICAST && peer->afc[afi][SAFI_UNICAST])) | |
1960 | return BGP_ERR_PEER_SAFI_CONFLICT; | |
1961 | ||
1962 | /* Nothing to do if we've already activated this peer */ | |
1963 | if (peer->afc[afi][safi]) | |
1964 | return 0; | |
1965 | ||
1966 | if (peer_af_create(peer, afi, safi) == NULL) | |
1967 | return 1; | |
1968 | ||
1969 | active = peer_active(peer); | |
1970 | peer->afc[afi][safi] = 1; | |
1971 | ||
9790f44f | 1972 | if (peer->group) |
a4d82a8a | 1973 | peer_group2peer_config_copy_af(peer->group, peer, afi, safi); |
9790f44f | 1974 | |
d62a17ae | 1975 | if (!active && peer_active(peer)) { |
1976 | bgp_timer_set(peer); | |
1977 | } else { | |
1978 | if (peer->status == Established) { | |
1979 | if (CHECK_FLAG(peer->cap, PEER_CAP_DYNAMIC_RCV)) { | |
1980 | peer->afc_adv[afi][safi] = 1; | |
1981 | bgp_capability_send(peer, afi, safi, | |
1982 | CAPABILITY_CODE_MP, | |
1983 | CAPABILITY_ACTION_SET); | |
1984 | if (peer->afc_recv[afi][safi]) { | |
1985 | peer->afc_nego[afi][safi] = 1; | |
1986 | bgp_announce_route(peer, afi, safi); | |
1987 | } | |
1988 | } else { | |
1989 | peer->last_reset = PEER_DOWN_AF_ACTIVATE; | |
1990 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
1991 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
1992 | } | |
1993 | } | |
64c1a9b5 DS |
1994 | if (peer->status == OpenSent || peer->status == OpenConfirm) { |
1995 | peer->last_reset = PEER_DOWN_AF_ACTIVATE; | |
1996 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
1997 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
1998 | } | |
9bf904cc DS |
1999 | /* |
2000 | * If we are turning on a AFI/SAFI locally and we've | |
2001 | * started bringing a peer up, we need to tell | |
2002 | * the other peer to restart because we might loose | |
2003 | * configuration here because when the doppelganger | |
2004 | * gets to a established state due to how | |
2005 | * we resolve we could just overwrite the afi/safi | |
2006 | * activation. | |
2007 | */ | |
2008 | other = peer->doppelganger; | |
2009 | if (other | |
2010 | && (other->status == OpenSent | |
2011 | || other->status == OpenConfirm)) { | |
2012 | other->last_reset = PEER_DOWN_AF_ACTIVATE; | |
2013 | bgp_notify_send(other, BGP_NOTIFY_CEASE, | |
2014 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
2015 | } | |
d62a17ae | 2016 | } |
04b6bdc0 | 2017 | |
d62a17ae | 2018 | return 0; |
2019 | } | |
9e08021c | 2020 | |
d62a17ae | 2021 | /* Activate the peer or peer group for specified AFI and SAFI. */ |
2022 | int peer_activate(struct peer *peer, afi_t afi, safi_t safi) | |
2023 | { | |
2024 | int ret = 0; | |
2025 | struct peer_group *group; | |
2026 | struct listnode *node, *nnode; | |
2027 | struct peer *tmp_peer; | |
318cac96 | 2028 | struct bgp *bgp; |
d62a17ae | 2029 | |
2030 | /* Nothing to do if we've already activated this peer */ | |
2031 | if (peer->afc[afi][safi]) | |
2032 | return ret; | |
2033 | ||
318cac96 DW |
2034 | bgp = peer->bgp; |
2035 | ||
d62a17ae | 2036 | /* This is a peer-group so activate all of the members of the |
2037 | * peer-group as well */ | |
2038 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
2039 | ||
2040 | /* Do not activate a peer for both SAFI_UNICAST and | |
2041 | * SAFI_LABELED_UNICAST */ | |
2042 | if ((safi == SAFI_UNICAST | |
2043 | && peer->afc[afi][SAFI_LABELED_UNICAST]) | |
2044 | || (safi == SAFI_LABELED_UNICAST | |
2045 | && peer->afc[afi][SAFI_UNICAST])) | |
2046 | return BGP_ERR_PEER_SAFI_CONFLICT; | |
2047 | ||
2048 | peer->afc[afi][safi] = 1; | |
2049 | group = peer->group; | |
2050 | ||
2051 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, tmp_peer)) { | |
9790f44f | 2052 | ret |= peer_activate_af(tmp_peer, afi, safi); |
d62a17ae | 2053 | } |
2054 | } else { | |
9790f44f | 2055 | ret |= peer_activate_af(peer, afi, safi); |
d62a17ae | 2056 | } |
718e3744 | 2057 | |
a4d82a8a PZ |
2058 | /* If this is the first peer to be activated for this |
2059 | * afi/labeled-unicast recalc bestpaths to trigger label allocation */ | |
2060 | if (safi == SAFI_LABELED_UNICAST | |
2061 | && !bgp->allocate_mpls_labels[afi][SAFI_UNICAST]) { | |
318cac96 DW |
2062 | |
2063 | if (BGP_DEBUG(zebra, ZEBRA)) | |
4cb5e18b | 2064 | zlog_debug( |
a4d82a8a | 2065 | "peer(s) are now active for labeled-unicast, allocate MPLS labels"); |
318cac96 DW |
2066 | |
2067 | bgp->allocate_mpls_labels[afi][SAFI_UNICAST] = 1; | |
2068 | bgp_recalculate_afi_safi_bestpaths(bgp, afi, SAFI_UNICAST); | |
2069 | } | |
2070 | ||
b98f7728 PG |
2071 | if (safi == SAFI_FLOWSPEC) { |
2072 | /* connect to table manager */ | |
6818e7e5 | 2073 | bgp_zebra_init_tm_connect(bgp); |
b98f7728 | 2074 | } |
d62a17ae | 2075 | return ret; |
718e3744 | 2076 | } |
6b0655a2 | 2077 | |
3dc339cd DA |
2078 | static bool non_peergroup_deactivate_af(struct peer *peer, afi_t afi, |
2079 | safi_t safi) | |
718e3744 | 2080 | { |
d62a17ae | 2081 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
e50f7cfd | 2082 | flog_err(EC_BGP_PEER_GROUP, "%s was called for peer-group %s", |
1c50c1c0 | 2083 | __func__, peer->host); |
3dc339cd | 2084 | return true; |
d62a17ae | 2085 | } |
718e3744 | 2086 | |
d62a17ae | 2087 | /* Nothing to do if we've already deactivated this peer */ |
2088 | if (!peer->afc[afi][safi]) | |
3dc339cd | 2089 | return false; |
718e3744 | 2090 | |
d62a17ae | 2091 | /* De-activate the address family configuration. */ |
2092 | peer->afc[afi][safi] = 0; | |
718e3744 | 2093 | |
d62a17ae | 2094 | if (peer_af_delete(peer, afi, safi) != 0) { |
e50f7cfd | 2095 | flog_err(EC_BGP_PEER_DELETE, |
601837df DS |
2096 | "couldn't delete af structure for peer %s(%s, %s)", |
2097 | peer->host, afi2str(afi), safi2str(safi)); | |
3dc339cd | 2098 | return true; |
d62a17ae | 2099 | } |
718e3744 | 2100 | |
d62a17ae | 2101 | if (peer->status == Established) { |
2102 | if (CHECK_FLAG(peer->cap, PEER_CAP_DYNAMIC_RCV)) { | |
2103 | peer->afc_adv[afi][safi] = 0; | |
2104 | peer->afc_nego[afi][safi] = 0; | |
2105 | ||
2106 | if (peer_active_nego(peer)) { | |
2107 | bgp_capability_send(peer, afi, safi, | |
2108 | CAPABILITY_CODE_MP, | |
2109 | CAPABILITY_ACTION_UNSET); | |
2110 | bgp_clear_route(peer, afi, safi); | |
2111 | peer->pcount[afi][safi] = 0; | |
2112 | } else { | |
2113 | peer->last_reset = PEER_DOWN_NEIGHBOR_DELETE; | |
2114 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
2115 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
2116 | } | |
2117 | } else { | |
2118 | peer->last_reset = PEER_DOWN_NEIGHBOR_DELETE; | |
2119 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
2120 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
2121 | } | |
2122 | } | |
718e3744 | 2123 | |
3dc339cd | 2124 | return false; |
d62a17ae | 2125 | } |
718e3744 | 2126 | |
d62a17ae | 2127 | int peer_deactivate(struct peer *peer, afi_t afi, safi_t safi) |
718e3744 | 2128 | { |
d62a17ae | 2129 | int ret = 0; |
2130 | struct peer_group *group; | |
2131 | struct peer *tmp_peer; | |
2132 | struct listnode *node, *nnode; | |
318cac96 | 2133 | struct bgp *bgp; |
718e3744 | 2134 | |
d62a17ae | 2135 | /* Nothing to do if we've already de-activated this peer */ |
2136 | if (!peer->afc[afi][safi]) | |
2137 | return ret; | |
718e3744 | 2138 | |
d62a17ae | 2139 | /* This is a peer-group so de-activate all of the members of the |
2140 | * peer-group as well */ | |
2141 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
2142 | peer->afc[afi][safi] = 0; | |
2143 | group = peer->group; | |
718e3744 | 2144 | |
d62a17ae | 2145 | if (peer_af_delete(peer, afi, safi) != 0) { |
601837df DS |
2146 | flog_err( |
2147 | EC_BGP_PEER_DELETE, | |
2148 | "couldn't delete af structure for peer %s(%s, %s)", | |
2149 | peer->host, afi2str(afi), safi2str(safi)); | |
d62a17ae | 2150 | } |
0299c004 | 2151 | |
d62a17ae | 2152 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, tmp_peer)) { |
2153 | ret |= non_peergroup_deactivate_af(tmp_peer, afi, safi); | |
2154 | } | |
2155 | } else { | |
2156 | ret |= non_peergroup_deactivate_af(peer, afi, safi); | |
2157 | } | |
718e3744 | 2158 | |
318cac96 DW |
2159 | bgp = peer->bgp; |
2160 | ||
a4d82a8a PZ |
2161 | /* If this is the last peer to be deactivated for this |
2162 | * afi/labeled-unicast recalc bestpaths to trigger label deallocation */ | |
2163 | if (safi == SAFI_LABELED_UNICAST | |
2164 | && bgp->allocate_mpls_labels[afi][SAFI_UNICAST] | |
2165 | && !bgp_afi_safi_peer_exists(bgp, afi, safi)) { | |
318cac96 DW |
2166 | |
2167 | if (BGP_DEBUG(zebra, ZEBRA)) | |
4cb5e18b | 2168 | zlog_debug( |
a4d82a8a | 2169 | "peer(s) are no longer active for labeled-unicast, deallocate MPLS labels"); |
318cac96 DW |
2170 | |
2171 | bgp->allocate_mpls_labels[afi][SAFI_UNICAST] = 0; | |
2172 | bgp_recalculate_afi_safi_bestpaths(bgp, afi, SAFI_UNICAST); | |
2173 | } | |
d62a17ae | 2174 | return ret; |
2175 | } | |
718e3744 | 2176 | |
d62a17ae | 2177 | int peer_afc_set(struct peer *peer, afi_t afi, safi_t safi, int enable) |
2178 | { | |
2179 | if (enable) | |
2180 | return peer_activate(peer, afi, safi); | |
2181 | else | |
2182 | return peer_deactivate(peer, afi, safi); | |
718e3744 | 2183 | } |
2184 | ||
d7b3cda6 | 2185 | void peer_nsf_stop(struct peer *peer) |
718e3744 | 2186 | { |
d62a17ae | 2187 | afi_t afi; |
2188 | safi_t safi; | |
718e3744 | 2189 | |
d62a17ae | 2190 | UNSET_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT); |
2191 | UNSET_FLAG(peer->sflags, PEER_STATUS_NSF_MODE); | |
718e3744 | 2192 | |
d62a17ae | 2193 | for (afi = AFI_IP; afi < AFI_MAX; afi++) |
a08ca0a7 | 2194 | for (safi = SAFI_UNICAST; safi <= SAFI_MPLS_VPN; safi++) |
d62a17ae | 2195 | peer->nsf[afi][safi] = 0; |
2196 | ||
2197 | if (peer->t_gr_restart) { | |
2198 | BGP_TIMER_OFF(peer->t_gr_restart); | |
2199 | if (bgp_debug_neighbor_events(peer)) | |
2200 | zlog_debug("%s graceful restart timer stopped", | |
2201 | peer->host); | |
1ff9a340 | 2202 | } |
d62a17ae | 2203 | if (peer->t_gr_stale) { |
2204 | BGP_TIMER_OFF(peer->t_gr_stale); | |
2205 | if (bgp_debug_neighbor_events(peer)) | |
2206 | zlog_debug( | |
2207 | "%s graceful restart stalepath timer stopped", | |
2208 | peer->host); | |
2209 | } | |
2210 | bgp_clear_route_all(peer); | |
2211 | } | |
718e3744 | 2212 | |
d62a17ae | 2213 | /* Delete peer from confguration. |
2214 | * | |
2215 | * The peer is moved to a dead-end "Deleted" neighbour-state, to allow | |
2216 | * it to "cool off" and refcounts to hit 0, at which state it is freed. | |
2217 | * | |
2218 | * This function /should/ take care to be idempotent, to guard against | |
2219 | * it being called multiple times through stray events that come in | |
2220 | * that happen to result in this function being called again. That | |
2221 | * said, getting here for a "Deleted" peer is a bug in the neighbour | |
2222 | * FSM. | |
2223 | */ | |
2224 | int peer_delete(struct peer *peer) | |
2225 | { | |
2226 | int i; | |
2227 | afi_t afi; | |
2228 | safi_t safi; | |
2229 | struct bgp *bgp; | |
2230 | struct bgp_filter *filter; | |
2231 | struct listnode *pn; | |
2232 | int accept_peer; | |
f14e6fdb | 2233 | |
d62a17ae | 2234 | assert(peer->status != Deleted); |
718e3744 | 2235 | |
d62a17ae | 2236 | bgp = peer->bgp; |
2237 | accept_peer = CHECK_FLAG(peer->sflags, PEER_STATUS_ACCEPT_PEER); | |
080b97f2 | 2238 | |
0a6469e5 | 2239 | bgp_keepalives_off(peer); |
424ab01d QY |
2240 | bgp_reads_off(peer); |
2241 | bgp_writes_off(peer); | |
2242 | assert(!CHECK_FLAG(peer->thread_flags, PEER_THREAD_WRITES_ON)); | |
2243 | assert(!CHECK_FLAG(peer->thread_flags, PEER_THREAD_READS_ON)); | |
0a6469e5 | 2244 | assert(!CHECK_FLAG(peer->thread_flags, PEER_THREAD_KEEPALIVES_ON)); |
424ab01d | 2245 | |
d62a17ae | 2246 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT)) |
2247 | peer_nsf_stop(peer); | |
718e3744 | 2248 | |
d62a17ae | 2249 | SET_FLAG(peer->flags, PEER_FLAG_DELETE); |
718e3744 | 2250 | |
e8ba5293 PG |
2251 | bgp_bfd_deregister_peer(peer); |
2252 | ||
d62a17ae | 2253 | /* If this peer belongs to peer group, clear up the |
2254 | relationship. */ | |
2255 | if (peer->group) { | |
2256 | if (peer_dynamic_neighbor(peer)) | |
2257 | peer_drop_dynamic_neighbor(peer); | |
718e3744 | 2258 | |
d62a17ae | 2259 | if ((pn = listnode_lookup(peer->group->peer, peer))) { |
2260 | peer = peer_unlock( | |
2261 | peer); /* group->peer list reference */ | |
2262 | list_delete_node(peer->group->peer, pn); | |
2263 | } | |
2264 | peer->group = NULL; | |
2265 | } | |
718e3744 | 2266 | |
d62a17ae | 2267 | /* Withdraw all information from routing table. We can not use |
2268 | * BGP_EVENT_ADD (peer, BGP_Stop) at here. Because the event is | |
2269 | * executed after peer structure is deleted. | |
2270 | */ | |
2271 | peer->last_reset = PEER_DOWN_NEIGHBOR_DELETE; | |
2272 | bgp_stop(peer); | |
2273 | UNSET_FLAG(peer->flags, PEER_FLAG_DELETE); | |
2274 | ||
2275 | if (peer->doppelganger) { | |
2276 | peer->doppelganger->doppelganger = NULL; | |
2277 | peer->doppelganger = NULL; | |
2278 | } | |
718e3744 | 2279 | |
d62a17ae | 2280 | UNSET_FLAG(peer->sflags, PEER_STATUS_ACCEPT_PEER); |
2281 | bgp_fsm_change_status(peer, Deleted); | |
718e3744 | 2282 | |
d62a17ae | 2283 | /* Remove from NHT */ |
2284 | if (CHECK_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE)) | |
2285 | bgp_unlink_nexthop_by_peer(peer); | |
1ff9a340 | 2286 | |
d62a17ae | 2287 | /* Password configuration */ |
a14810f4 | 2288 | if (CHECK_FLAG(peer->flags, PEER_FLAG_PASSWORD)) { |
d62a17ae | 2289 | XFREE(MTYPE_PEER_PASSWORD, peer->password); |
1ff9a340 | 2290 | |
d62a17ae | 2291 | if (!accept_peer && !BGP_PEER_SU_UNSPEC(peer) |
2292 | && !CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
2293 | bgp_md5_unset(peer); | |
1ff9a340 | 2294 | } |
718e3744 | 2295 | |
d62a17ae | 2296 | bgp_timer_set(peer); /* stops all timers for Deleted */ |
718e3744 | 2297 | |
d62a17ae | 2298 | /* Delete from all peer list. */ |
2299 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP) | |
2300 | && (pn = listnode_lookup(bgp->peer, peer))) { | |
2301 | peer_unlock(peer); /* bgp peer list reference */ | |
2302 | list_delete_node(bgp->peer, pn); | |
2303 | hash_release(bgp->peerhash, peer); | |
2304 | } | |
718e3744 | 2305 | |
d62a17ae | 2306 | /* Buffers. */ |
2307 | if (peer->ibuf) { | |
424ab01d | 2308 | stream_fifo_free(peer->ibuf); |
d62a17ae | 2309 | peer->ibuf = NULL; |
2310 | } | |
f14e6fdb | 2311 | |
d62a17ae | 2312 | if (peer->obuf) { |
2313 | stream_fifo_free(peer->obuf); | |
2314 | peer->obuf = NULL; | |
2315 | } | |
f14e6fdb | 2316 | |
424ab01d | 2317 | if (peer->ibuf_work) { |
74ffbfe6 | 2318 | ringbuf_del(peer->ibuf_work); |
424ab01d QY |
2319 | peer->ibuf_work = NULL; |
2320 | } | |
2321 | ||
2322 | if (peer->obuf_work) { | |
2323 | stream_free(peer->obuf_work); | |
2324 | peer->obuf_work = NULL; | |
d62a17ae | 2325 | } |
f14e6fdb | 2326 | |
d62a17ae | 2327 | if (peer->scratch) { |
2328 | stream_free(peer->scratch); | |
2329 | peer->scratch = NULL; | |
2330 | } | |
f14e6fdb | 2331 | |
d62a17ae | 2332 | /* Local and remote addresses. */ |
2333 | if (peer->su_local) { | |
2334 | sockunion_free(peer->su_local); | |
2335 | peer->su_local = NULL; | |
2336 | } | |
f14e6fdb | 2337 | |
d62a17ae | 2338 | if (peer->su_remote) { |
2339 | sockunion_free(peer->su_remote); | |
2340 | peer->su_remote = NULL; | |
2341 | } | |
f14e6fdb | 2342 | |
d62a17ae | 2343 | /* Free filter related memory. */ |
05c7a1cc QY |
2344 | FOREACH_AFI_SAFI (afi, safi) { |
2345 | filter = &peer->filter[afi][safi]; | |
d62a17ae | 2346 | |
05c7a1cc | 2347 | for (i = FILTER_IN; i < FILTER_MAX; i++) { |
e1b36e13 QY |
2348 | XFREE(MTYPE_BGP_FILTER_NAME, filter->dlist[i].name); |
2349 | XFREE(MTYPE_BGP_FILTER_NAME, filter->plist[i].name); | |
2350 | XFREE(MTYPE_BGP_FILTER_NAME, filter->aslist[i].name); | |
05c7a1cc | 2351 | } |
d62a17ae | 2352 | |
05c7a1cc | 2353 | for (i = RMAP_IN; i < RMAP_MAX; i++) { |
e1b36e13 | 2354 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[i].name); |
05c7a1cc QY |
2355 | } |
2356 | ||
e1b36e13 QY |
2357 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); |
2358 | XFREE(MTYPE_ROUTE_MAP_NAME, peer->default_rmap[afi][safi].name); | |
05c7a1cc QY |
2359 | } |
2360 | ||
a2addae8 RW |
2361 | FOREACH_AFI_SAFI (afi, safi) |
2362 | peer_af_delete(peer, afi, safi); | |
f14e6fdb | 2363 | |
e1b36e13 QY |
2364 | XFREE(MTYPE_BGP_PEER_HOST, peer->hostname); |
2365 | XFREE(MTYPE_BGP_PEER_HOST, peer->domainname); | |
f14e6fdb | 2366 | |
d62a17ae | 2367 | peer_unlock(peer); /* initial reference */ |
f14e6fdb | 2368 | |
d62a17ae | 2369 | return 0; |
fe7d2a48 DS |
2370 | } |
2371 | ||
d62a17ae | 2372 | static int peer_group_cmp(struct peer_group *g1, struct peer_group *g2) |
2373 | { | |
2374 | return strcmp(g1->name, g2->name); | |
6aeb9e78 DS |
2375 | } |
2376 | ||
d62a17ae | 2377 | /* Peer group cofiguration. */ |
2378 | static struct peer_group *peer_group_new(void) | |
718e3744 | 2379 | { |
9f5dc319 | 2380 | return XCALLOC(MTYPE_PEER_GROUP, sizeof(struct peer_group)); |
718e3744 | 2381 | } |
2382 | ||
d62a17ae | 2383 | static void peer_group_free(struct peer_group *group) |
718e3744 | 2384 | { |
d62a17ae | 2385 | XFREE(MTYPE_PEER_GROUP, group); |
718e3744 | 2386 | } |
2387 | ||
d62a17ae | 2388 | struct peer_group *peer_group_lookup(struct bgp *bgp, const char *name) |
718e3744 | 2389 | { |
d62a17ae | 2390 | struct peer_group *group; |
2391 | struct listnode *node, *nnode; | |
2392 | ||
2393 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
2394 | if (strcmp(group->name, name) == 0) | |
2395 | return group; | |
2396 | } | |
2397 | return NULL; | |
2398 | } | |
2399 | ||
2400 | struct peer_group *peer_group_get(struct bgp *bgp, const char *name) | |
2401 | { | |
2402 | struct peer_group *group; | |
2403 | afi_t afi; | |
2404 | ||
2405 | group = peer_group_lookup(bgp, name); | |
2406 | if (group) | |
2407 | return group; | |
2408 | ||
2409 | group = peer_group_new(); | |
2410 | group->bgp = bgp; | |
0a22ddfb | 2411 | XFREE(MTYPE_PEER_GROUP_HOST, group->name); |
d62a17ae | 2412 | group->name = XSTRDUP(MTYPE_PEER_GROUP_HOST, name); |
2413 | group->peer = list_new(); | |
2414 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
2415 | group->listen_range[afi] = list_new(); | |
2416 | group->conf = peer_new(bgp); | |
892fedb6 | 2417 | if (!CHECK_FLAG(bgp->flags, BGP_FLAG_NO_DEFAULT_IPV4)) |
d62a17ae | 2418 | group->conf->afc[AFI_IP][SAFI_UNICAST] = 1; |
0a22ddfb | 2419 | XFREE(MTYPE_BGP_PEER_HOST, group->conf->host); |
d62a17ae | 2420 | group->conf->host = XSTRDUP(MTYPE_BGP_PEER_HOST, name); |
2421 | group->conf->group = group; | |
2422 | group->conf->as = 0; | |
a0903cd2 | 2423 | group->conf->ttl = BGP_DEFAULT_TTL; |
e2521429 | 2424 | group->conf->gtsm_hops = BGP_GTSM_HOPS_DISABLED; |
d62a17ae | 2425 | group->conf->v_routeadv = BGP_DEFAULT_EBGP_ROUTEADV; |
d62a17ae | 2426 | SET_FLAG(group->conf->sflags, PEER_STATUS_GROUP); |
2427 | listnode_add_sort(bgp->group, group); | |
718e3744 | 2428 | |
d62a17ae | 2429 | return group; |
718e3744 | 2430 | } |
2431 | ||
d62a17ae | 2432 | static void peer_group2peer_config_copy(struct peer_group *group, |
2433 | struct peer *peer) | |
ad4cbda1 | 2434 | { |
4c391142 | 2435 | uint32_t flags_tmp; |
d62a17ae | 2436 | struct peer *conf; |
ad4cbda1 | 2437 | |
d62a17ae | 2438 | conf = group->conf; |
ad4cbda1 | 2439 | |
d62a17ae | 2440 | /* remote-as */ |
2441 | if (conf->as) | |
2442 | peer->as = conf->as; | |
718e3744 | 2443 | |
a14810f4 PM |
2444 | /* local-as */ |
2445 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_LOCAL_AS)) | |
d62a17ae | 2446 | peer->change_local_as = conf->change_local_as; |
1758dbaa | 2447 | |
a0903cd2 DA |
2448 | /* If peer-group has configured TTL then override it */ |
2449 | if (conf->ttl != BGP_DEFAULT_TTL) | |
2450 | peer->ttl = conf->ttl; | |
518f0eb1 | 2451 | |
d62a17ae | 2452 | /* GTSM hops */ |
2453 | peer->gtsm_hops = conf->gtsm_hops; | |
ad12dde6 | 2454 | |
4c391142 PM |
2455 | /* peer flags apply */ |
2456 | flags_tmp = conf->flags & ~peer->flags_override; | |
2457 | flags_tmp ^= conf->flags_invert ^ peer->flags_invert; | |
2458 | flags_tmp &= ~peer->flags_override; | |
2459 | ||
2460 | UNSET_FLAG(peer->flags, ~peer->flags_override); | |
2461 | SET_FLAG(peer->flags, flags_tmp); | |
2462 | SET_FLAG(peer->flags_invert, conf->flags_invert); | |
ad4cbda1 | 2463 | |
d62a17ae | 2464 | /* peer timers apply */ |
b90a8e13 PM |
2465 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_TIMER)) { |
2466 | PEER_ATTR_INHERIT(peer, group, holdtime); | |
2467 | PEER_ATTR_INHERIT(peer, group, keepalive); | |
2468 | } | |
6aeb9e78 | 2469 | |
b90a8e13 PM |
2470 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_TIMER_CONNECT)) { |
2471 | PEER_ATTR_INHERIT(peer, group, connect); | |
2472 | if (CHECK_FLAG(conf->flags, PEER_FLAG_TIMER_CONNECT)) | |
2473 | peer->v_connect = conf->connect; | |
2474 | else | |
5d5393b9 | 2475 | peer->v_connect = peer->bgp->default_connect_retry; |
b90a8e13 PM |
2476 | } |
2477 | ||
2478 | /* advertisement-interval apply */ | |
2479 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_ROUTEADV)) { | |
2480 | PEER_ATTR_INHERIT(peer, group, routeadv); | |
2481 | if (CHECK_FLAG(conf->flags, PEER_FLAG_ROUTEADV)) | |
2482 | peer->v_routeadv = conf->routeadv; | |
2483 | else | |
2484 | peer->v_routeadv = (peer_sort(peer) == BGP_PEER_IBGP) | |
2485 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
2486 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
2487 | } | |
718e3744 | 2488 | |
b3a3290e DS |
2489 | /* capability extended-nexthop apply */ |
2490 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_CAPABILITY_ENHE)) | |
2491 | if (CHECK_FLAG(conf->flags, PEER_FLAG_CAPABILITY_ENHE)) | |
2492 | SET_FLAG(peer->flags, PEER_FLAG_CAPABILITY_ENHE); | |
2493 | ||
d62a17ae | 2494 | /* password apply */ |
a14810f4 PM |
2495 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_PASSWORD)) |
2496 | PEER_STR_ATTR_INHERIT(peer, group, password, | |
2497 | MTYPE_PEER_PASSWORD); | |
718e3744 | 2498 | |
d62a17ae | 2499 | if (!BGP_PEER_SU_UNSPEC(peer)) |
2500 | bgp_md5_set(peer); | |
d4a7a753 | 2501 | |
d62a17ae | 2502 | /* update-source apply */ |
a14810f4 PM |
2503 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_UPDATE_SOURCE)) { |
2504 | if (conf->update_source) { | |
d62a17ae | 2505 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); |
a14810f4 PM |
2506 | PEER_SU_ATTR_INHERIT(peer, group, update_source); |
2507 | } else if (conf->update_if) { | |
d62a17ae | 2508 | sockunion_free(peer->update_source); |
a14810f4 PM |
2509 | PEER_STR_ATTR_INHERIT(peer, group, update_if, |
2510 | MTYPE_PEER_UPDATE_SOURCE); | |
d62a17ae | 2511 | } |
d62a17ae | 2512 | } |
cd92e548 | 2513 | |
0c0b85b5 NT |
2514 | /* Update GR flags for the peer. */ |
2515 | bgp_peer_gr_flags_update(peer); | |
2516 | ||
d62a17ae | 2517 | bgp_bfd_peer_group2peer_copy(conf, peer); |
ad4cbda1 | 2518 | } |
718e3744 | 2519 | |
d62a17ae | 2520 | /* Peer group's remote AS configuration. */ |
2521 | int peer_group_remote_as(struct bgp *bgp, const char *group_name, as_t *as, | |
2522 | int as_type) | |
f14e6fdb | 2523 | { |
d62a17ae | 2524 | struct peer_group *group; |
2525 | struct peer *peer; | |
2526 | struct listnode *node, *nnode; | |
f14e6fdb | 2527 | |
d62a17ae | 2528 | group = peer_group_lookup(bgp, group_name); |
2529 | if (!group) | |
2530 | return -1; | |
f14e6fdb | 2531 | |
d62a17ae | 2532 | if ((as_type == group->conf->as_type) && (group->conf->as == *as)) |
2533 | return 0; | |
f14e6fdb | 2534 | |
f14e6fdb | 2535 | |
d62a17ae | 2536 | /* When we setup peer-group AS number all peer group member's AS |
2537 | number must be updated to same number. */ | |
2538 | peer_as_change(group->conf, *as, as_type); | |
f14e6fdb | 2539 | |
d62a17ae | 2540 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { |
2541 | if (((peer->as_type == AS_SPECIFIED) && peer->as != *as) | |
2542 | || (peer->as_type != as_type)) | |
2543 | peer_as_change(peer, *as, as_type); | |
2544 | } | |
f14e6fdb | 2545 | |
d62a17ae | 2546 | return 0; |
f14e6fdb DS |
2547 | } |
2548 | ||
3dc339cd | 2549 | void peer_notify_unconfig(struct peer *peer) |
4e2786df DA |
2550 | { |
2551 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
2552 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
2553 | BGP_NOTIFY_CEASE_PEER_UNCONFIG); | |
4e2786df DA |
2554 | } |
2555 | ||
3dc339cd | 2556 | void peer_group_notify_unconfig(struct peer_group *group) |
4e2786df DA |
2557 | { |
2558 | struct peer *peer, *other; | |
2559 | struct listnode *node, *nnode; | |
2560 | ||
2561 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
2562 | other = peer->doppelganger; | |
2563 | if (other && other->status != Deleted) { | |
2564 | other->group = NULL; | |
2565 | peer_notify_unconfig(other); | |
2566 | } else | |
2567 | peer_notify_unconfig(peer); | |
2568 | } | |
4e2786df DA |
2569 | } |
2570 | ||
d62a17ae | 2571 | int peer_group_delete(struct peer_group *group) |
f14e6fdb | 2572 | { |
d62a17ae | 2573 | struct bgp *bgp; |
2574 | struct peer *peer; | |
2575 | struct prefix *prefix; | |
2576 | struct peer *other; | |
2577 | struct listnode *node, *nnode; | |
2578 | afi_t afi; | |
f14e6fdb | 2579 | |
d62a17ae | 2580 | bgp = group->bgp; |
f14e6fdb | 2581 | |
d62a17ae | 2582 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { |
2583 | other = peer->doppelganger; | |
b3a3290e DS |
2584 | |
2585 | if (CHECK_FLAG(peer->flags, PEER_FLAG_CAPABILITY_ENHE)) | |
2586 | bgp_zebra_terminate_radv(bgp, peer); | |
2587 | ||
d62a17ae | 2588 | peer_delete(peer); |
2589 | if (other && other->status != Deleted) { | |
2590 | other->group = NULL; | |
2591 | peer_delete(other); | |
2592 | } | |
2593 | } | |
6a154c88 | 2594 | list_delete(&group->peer); |
f14e6fdb | 2595 | |
d62a17ae | 2596 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
2597 | for (ALL_LIST_ELEMENTS(group->listen_range[afi], node, nnode, | |
2598 | prefix)) { | |
63265b5c | 2599 | prefix_free(&prefix); |
d62a17ae | 2600 | } |
6a154c88 | 2601 | list_delete(&group->listen_range[afi]); |
d62a17ae | 2602 | } |
f14e6fdb | 2603 | |
d62a17ae | 2604 | XFREE(MTYPE_PEER_GROUP_HOST, group->name); |
2605 | group->name = NULL; | |
0299c004 | 2606 | |
d62a17ae | 2607 | bfd_info_free(&(group->conf->bfd_info)); |
f14e6fdb | 2608 | |
d62a17ae | 2609 | group->conf->group = NULL; |
2610 | peer_delete(group->conf); | |
f14e6fdb | 2611 | |
d62a17ae | 2612 | /* Delete from all peer_group list. */ |
2613 | listnode_delete(bgp->group, group); | |
f14e6fdb | 2614 | |
d62a17ae | 2615 | peer_group_free(group); |
f14e6fdb | 2616 | |
d62a17ae | 2617 | return 0; |
2618 | } | |
f14e6fdb | 2619 | |
d62a17ae | 2620 | int peer_group_remote_as_delete(struct peer_group *group) |
2621 | { | |
2622 | struct peer *peer, *other; | |
2623 | struct listnode *node, *nnode; | |
f14e6fdb | 2624 | |
d62a17ae | 2625 | if ((group->conf->as_type == AS_UNSPECIFIED) |
2626 | || ((!group->conf->as) && (group->conf->as_type == AS_SPECIFIED))) | |
2627 | return 0; | |
f14e6fdb | 2628 | |
d62a17ae | 2629 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { |
2630 | other = peer->doppelganger; | |
f14e6fdb | 2631 | |
b3a3290e DS |
2632 | if (CHECK_FLAG(peer->flags, PEER_FLAG_CAPABILITY_ENHE)) |
2633 | bgp_zebra_terminate_radv(peer->bgp, peer); | |
2634 | ||
d62a17ae | 2635 | peer_delete(peer); |
f14e6fdb | 2636 | |
d62a17ae | 2637 | if (other && other->status != Deleted) { |
2638 | other->group = NULL; | |
2639 | peer_delete(other); | |
2640 | } | |
2641 | } | |
2642 | list_delete_all_node(group->peer); | |
f14e6fdb | 2643 | |
d62a17ae | 2644 | group->conf->as = 0; |
2645 | group->conf->as_type = AS_UNSPECIFIED; | |
f14e6fdb | 2646 | |
d62a17ae | 2647 | return 0; |
f14e6fdb | 2648 | } |
d62a17ae | 2649 | |
2650 | int peer_group_listen_range_add(struct peer_group *group, struct prefix *range) | |
f14e6fdb | 2651 | { |
d62a17ae | 2652 | struct prefix *prefix; |
2653 | struct listnode *node, *nnode; | |
2654 | afi_t afi; | |
f14e6fdb | 2655 | |
d62a17ae | 2656 | afi = family2afi(range->family); |
f14e6fdb | 2657 | |
d62a17ae | 2658 | /* Group needs remote AS configured. */ |
2659 | if (group->conf->as_type == AS_UNSPECIFIED) | |
2660 | return BGP_ERR_PEER_GROUP_NO_REMOTE_AS; | |
718e3744 | 2661 | |
d62a17ae | 2662 | /* Ensure no duplicates. Currently we don't care about overlaps. */ |
2663 | for (ALL_LIST_ELEMENTS(group->listen_range[afi], node, nnode, prefix)) { | |
2664 | if (prefix_same(range, prefix)) | |
2665 | return 0; | |
2666 | } | |
2667 | ||
2668 | prefix = prefix_new(); | |
2669 | prefix_copy(prefix, range); | |
2670 | listnode_add(group->listen_range[afi], prefix); | |
9e7d9a61 QY |
2671 | |
2672 | /* Update passwords for new ranges */ | |
2673 | if (group->conf->password) | |
2674 | bgp_md5_set_prefix(prefix, group->conf->password); | |
2675 | ||
d62a17ae | 2676 | return 0; |
718e3744 | 2677 | } |
6b0655a2 | 2678 | |
d62a17ae | 2679 | int peer_group_listen_range_del(struct peer_group *group, struct prefix *range) |
718e3744 | 2680 | { |
d62a17ae | 2681 | struct prefix *prefix, prefix2; |
2682 | struct listnode *node, *nnode; | |
2683 | struct peer *peer; | |
2684 | afi_t afi; | |
2685 | char buf[PREFIX2STR_BUFFER]; | |
718e3744 | 2686 | |
d62a17ae | 2687 | afi = family2afi(range->family); |
1ff9a340 | 2688 | |
d62a17ae | 2689 | /* Identify the listen range. */ |
2690 | for (ALL_LIST_ELEMENTS(group->listen_range[afi], node, nnode, prefix)) { | |
2691 | if (prefix_same(range, prefix)) | |
2692 | break; | |
1ff9a340 | 2693 | } |
718e3744 | 2694 | |
d62a17ae | 2695 | if (!prefix) |
2696 | return BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_NOT_FOUND; | |
2697 | ||
2698 | prefix2str(prefix, buf, sizeof(buf)); | |
2699 | ||
2700 | /* Dispose off any dynamic neighbors that exist due to this listen range | |
2701 | */ | |
2702 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
2703 | if (!peer_dynamic_neighbor(peer)) | |
2704 | continue; | |
2705 | ||
2706 | sockunion2hostprefix(&peer->su, &prefix2); | |
2707 | if (prefix_match(prefix, &prefix2)) { | |
2708 | if (bgp_debug_neighbor_events(peer)) | |
2709 | zlog_debug( | |
2710 | "Deleting dynamic neighbor %s group %s upon " | |
2711 | "delete of listen range %s", | |
2712 | peer->host, group->name, buf); | |
2713 | peer_delete(peer); | |
2714 | } | |
2715 | } | |
718e3744 | 2716 | |
d62a17ae | 2717 | /* Get rid of the listen range */ |
2718 | listnode_delete(group->listen_range[afi], prefix); | |
718e3744 | 2719 | |
9e7d9a61 QY |
2720 | /* Remove passwords for deleted ranges */ |
2721 | if (group->conf->password) | |
2722 | bgp_md5_unset_prefix(prefix); | |
2723 | ||
d62a17ae | 2724 | return 0; |
2725 | } | |
e0701b79 | 2726 | |
d62a17ae | 2727 | /* Bind specified peer to peer group. */ |
2728 | int peer_group_bind(struct bgp *bgp, union sockunion *su, struct peer *peer, | |
2729 | struct peer_group *group, as_t *as) | |
2730 | { | |
2731 | int first_member = 0; | |
2732 | afi_t afi; | |
2733 | safi_t safi; | |
469cbb0f | 2734 | bgp_peer_sort_t ptype, gtype; |
d62a17ae | 2735 | |
2736 | /* Lookup the peer. */ | |
2737 | if (!peer) | |
2738 | peer = peer_lookup(bgp, su); | |
2739 | ||
2740 | /* The peer exist, bind it to the peer-group */ | |
2741 | if (peer) { | |
ed9fb826 | 2742 | /* When the peer already belongs to a peer-group, check the |
d62a17ae | 2743 | * consistency. */ |
ed9fb826 DW |
2744 | if (peer_group_active(peer)) { |
2745 | ||
2746 | /* The peer is already bound to the peer-group, | |
d8a079e8 DW |
2747 | * nothing to do |
2748 | */ | |
ed9fb826 DW |
2749 | if (strcmp(peer->group->name, group->name) == 0) |
2750 | return 0; | |
2751 | else | |
2752 | return BGP_ERR_PEER_GROUP_CANT_CHANGE; | |
2753 | } | |
d62a17ae | 2754 | |
2755 | /* The peer has not specified a remote-as, inherit it from the | |
2756 | * peer-group */ | |
2757 | if (peer->as_type == AS_UNSPECIFIED) { | |
2758 | peer->as_type = group->conf->as_type; | |
2759 | peer->as = group->conf->as; | |
faa16034 | 2760 | peer->sort = group->conf->sort; |
d62a17ae | 2761 | } |
718e3744 | 2762 | |
469cbb0f DS |
2763 | ptype = peer_sort(peer); |
2764 | if (!group->conf->as && ptype != BGP_PEER_UNSPECIFIED) { | |
2765 | gtype = peer_sort(group->conf); | |
2766 | if ((gtype != BGP_PEER_INTERNAL) && (gtype != ptype)) { | |
d62a17ae | 2767 | if (as) |
2768 | *as = peer->as; | |
2769 | return BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT; | |
2770 | } | |
718e3744 | 2771 | |
469cbb0f | 2772 | if (gtype == BGP_PEER_INTERNAL) |
d62a17ae | 2773 | first_member = 1; |
2774 | } | |
718e3744 | 2775 | |
d62a17ae | 2776 | peer_group2peer_config_copy(group, peer); |
2777 | ||
05c7a1cc QY |
2778 | FOREACH_AFI_SAFI (afi, safi) { |
2779 | if (group->conf->afc[afi][safi]) { | |
2780 | peer->afc[afi][safi] = 1; | |
2781 | ||
2782 | if (peer_af_find(peer, afi, safi) | |
2783 | || peer_af_create(peer, afi, safi)) { | |
2784 | peer_group2peer_config_copy_af( | |
2785 | group, peer, afi, safi); | |
2786 | } | |
2787 | } else if (peer->afc[afi][safi]) | |
2788 | peer_deactivate(peer, afi, safi); | |
a4d82a8a | 2789 | } |
d62a17ae | 2790 | |
2791 | if (peer->group) { | |
2792 | assert(group && peer->group == group); | |
2793 | } else { | |
0866cdaf A |
2794 | listnode_delete(bgp->peer, peer); |
2795 | ||
d62a17ae | 2796 | peer->group = group; |
2797 | listnode_add_sort(bgp->peer, peer); | |
2798 | ||
2799 | peer = peer_lock(peer); /* group->peer list reference */ | |
2800 | listnode_add(group->peer, peer); | |
2801 | } | |
718e3744 | 2802 | |
d62a17ae | 2803 | if (first_member) { |
469cbb0f | 2804 | gtype = peer_sort(group->conf); |
d62a17ae | 2805 | /* Advertisement-interval reset */ |
b90a8e13 PM |
2806 | if (!CHECK_FLAG(group->conf->flags, |
2807 | PEER_FLAG_ROUTEADV)) { | |
2808 | group->conf->v_routeadv = | |
469cbb0f | 2809 | (gtype == BGP_PEER_IBGP) |
b90a8e13 PM |
2810 | ? BGP_DEFAULT_IBGP_ROUTEADV |
2811 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 2812 | } |
2813 | ||
2814 | /* ebgp-multihop reset */ | |
469cbb0f | 2815 | if (gtype == BGP_PEER_IBGP) |
d62a17ae | 2816 | group->conf->ttl = MAXTTL; |
2817 | ||
2818 | /* local-as reset */ | |
469cbb0f | 2819 | if (gtype != BGP_PEER_EBGP) { |
d62a17ae | 2820 | group->conf->change_local_as = 0; |
a14810f4 PM |
2821 | peer_flag_unset(group->conf, |
2822 | PEER_FLAG_LOCAL_AS); | |
2823 | peer_flag_unset(group->conf, | |
2824 | PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
2825 | peer_flag_unset(group->conf, | |
2826 | PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
d62a17ae | 2827 | } |
2828 | } | |
718e3744 | 2829 | |
d62a17ae | 2830 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); |
718e3744 | 2831 | |
d62a17ae | 2832 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
2833 | peer->last_reset = PEER_DOWN_RMAP_BIND; | |
2834 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
2835 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
2836 | } else { | |
2837 | bgp_session_reset(peer); | |
2838 | } | |
2839 | } | |
718e3744 | 2840 | |
d62a17ae | 2841 | /* Create a new peer. */ |
2842 | else { | |
2843 | if ((group->conf->as_type == AS_SPECIFIED) | |
2844 | && (!group->conf->as)) { | |
2845 | return BGP_ERR_PEER_GROUP_NO_REMOTE_AS; | |
2846 | } | |
718e3744 | 2847 | |
d62a17ae | 2848 | peer = peer_create(su, NULL, bgp, bgp->as, group->conf->as, |
2849 | group->conf->as_type, 0, 0, group); | |
718e3744 | 2850 | |
d62a17ae | 2851 | peer = peer_lock(peer); /* group->peer list reference */ |
2852 | listnode_add(group->peer, peer); | |
718e3744 | 2853 | |
d62a17ae | 2854 | peer_group2peer_config_copy(group, peer); |
a4ed4829 | 2855 | |
d62a17ae | 2856 | /* If the peer-group is active for this afi/safi then activate |
2857 | * for this peer */ | |
05c7a1cc QY |
2858 | FOREACH_AFI_SAFI (afi, safi) { |
2859 | if (group->conf->afc[afi][safi]) { | |
2860 | peer->afc[afi][safi] = 1; | |
2861 | peer_af_create(peer, afi, safi); | |
2862 | peer_group2peer_config_copy_af(group, peer, afi, | |
2863 | safi); | |
2864 | } else if (peer->afc[afi][safi]) | |
2865 | peer_deactivate(peer, afi, safi); | |
2866 | } | |
718e3744 | 2867 | |
d62a17ae | 2868 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); |
718e3744 | 2869 | |
d62a17ae | 2870 | /* Set up peer's events and timers. */ |
2871 | if (peer_active(peer)) | |
2872 | bgp_timer_set(peer); | |
2873 | } | |
718e3744 | 2874 | |
d62a17ae | 2875 | return 0; |
718e3744 | 2876 | } |
2877 | ||
d62a17ae | 2878 | static int bgp_startup_timer_expire(struct thread *thread) |
2879 | { | |
2880 | struct bgp *bgp; | |
718e3744 | 2881 | |
d62a17ae | 2882 | bgp = THREAD_ARG(thread); |
2883 | bgp->t_startup = NULL; | |
718e3744 | 2884 | |
d62a17ae | 2885 | return 0; |
2886 | } | |
e0701b79 | 2887 | |
829e590b DS |
2888 | /* |
2889 | * On shutdown we call the cleanup function which | |
2890 | * does a free of the link list nodes, free up | |
2891 | * the data we are pointing at too. | |
2892 | */ | |
2893 | static void bgp_vrf_string_name_delete(void *data) | |
2894 | { | |
2895 | char *vname = data; | |
2896 | ||
2897 | XFREE(MTYPE_TMP, vname); | |
2898 | } | |
2899 | ||
d62a17ae | 2900 | /* BGP instance creation by `router bgp' commands. */ |
2901 | static struct bgp *bgp_create(as_t *as, const char *name, | |
2902 | enum bgp_instance_type inst_type) | |
2903 | { | |
0291c246 MK |
2904 | struct bgp *bgp; |
2905 | afi_t afi; | |
2906 | safi_t safi; | |
d62a17ae | 2907 | |
2908 | if ((bgp = XCALLOC(MTYPE_BGP, sizeof(struct bgp))) == NULL) | |
2909 | return NULL; | |
2910 | ||
2911 | if (BGP_DEBUG(zebra, ZEBRA)) { | |
2912 | if (inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
2913 | zlog_debug("Creating Default VRF, AS %u", *as); | |
2914 | else | |
2915 | zlog_debug("Creating %s %s, AS %u", | |
2916 | (inst_type == BGP_INSTANCE_TYPE_VRF) | |
2917 | ? "VRF" | |
2918 | : "VIEW", | |
2919 | name, *as); | |
718e3744 | 2920 | } |
adbac85e | 2921 | |
e2f3a930 T |
2922 | /* Default the EVPN VRF to the default one */ |
2923 | if (inst_type == BGP_INSTANCE_TYPE_DEFAULT && !bgp_master.bgp_evpn) { | |
2924 | bgp_lock(bgp); | |
2925 | bm->bgp_evpn = bgp; | |
2926 | } | |
2927 | ||
d62a17ae | 2928 | bgp_lock(bgp); |
9df5ac49 | 2929 | bgp->heuristic_coalesce = true; |
d62a17ae | 2930 | bgp->inst_type = inst_type; |
2931 | bgp->vrf_id = (inst_type == BGP_INSTANCE_TYPE_DEFAULT) ? VRF_DEFAULT | |
2932 | : VRF_UNKNOWN; | |
2933 | bgp->peer_self = peer_new(bgp); | |
0a22ddfb | 2934 | XFREE(MTYPE_BGP_PEER_HOST, bgp->peer_self->host); |
d62a17ae | 2935 | bgp->peer_self->host = |
2936 | XSTRDUP(MTYPE_BGP_PEER_HOST, "Static announcement"); | |
e1b36e13 | 2937 | XFREE(MTYPE_BGP_PEER_HOST, bgp->peer_self->hostname); |
6b3ee3a0 | 2938 | if (cmd_hostname_get()) |
60466a63 QY |
2939 | bgp->peer_self->hostname = |
2940 | XSTRDUP(MTYPE_BGP_PEER_HOST, cmd_hostname_get()); | |
d77114b7 | 2941 | |
e1b36e13 | 2942 | XFREE(MTYPE_BGP_PEER_HOST, bgp->peer_self->domainname); |
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); | |
cfd47646 | 2965 | /* Initialize graceful restart info */ |
2966 | bgp->gr_info[afi][safi].eor_required = 0; | |
2967 | bgp->gr_info[afi][safi].eor_received = 0; | |
2968 | bgp->gr_info[afi][safi].t_select_deferral = NULL; | |
2969 | bgp->gr_info[afi][safi].t_route_select = NULL; | |
2970 | bgp->gr_info[afi][safi].route_list = list_new(); | |
05c7a1cc | 2971 | } |
d62a17ae | 2972 | |
2973 | bgp->v_update_delay = BGP_UPDATE_DELAY_DEF; | |
2974 | bgp->default_local_pref = BGP_DEFAULT_LOCAL_PREF; | |
2975 | bgp->default_subgroup_pkt_queue_max = | |
2976 | BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX; | |
5d5393b9 | 2977 | bgp_timers_unset(bgp); |
d62a17ae | 2978 | bgp->restart_time = BGP_DEFAULT_RESTART_TIME; |
2979 | bgp->stalepath_time = BGP_DEFAULT_STALEPATH_TIME; | |
cfd47646 | 2980 | bgp->select_defer_time = BGP_DEFAULT_SELECT_DEFERRAL_TIME; |
dc95985f | 2981 | bgp->rib_stale_time = BGP_DEFAULT_RIB_STALE_TIME; |
d62a17ae | 2982 | bgp->dynamic_neighbors_limit = BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT; |
2983 | bgp->dynamic_neighbors_count = 0; | |
b1875e65 | 2984 | bgp->lb_ref_bw = BGP_LINK_BW_REF_BW; |
f7e1c681 | 2985 | bgp->lb_handling = BGP_LINK_BW_ECMP; |
7f972cd8 | 2986 | bgp->reject_as_sets = false; |
dcc68b5e | 2987 | bgp_addpath_init_bgp_data(&bgp->tx_addpath); |
d62a17ae | 2988 | |
2989 | bgp->as = *as; | |
2990 | ||
49e5a4a0 | 2991 | #ifdef ENABLE_BGP_VNC |
d62a17ae | 2992 | if (inst_type != BGP_INSTANCE_TYPE_VRF) { |
2993 | bgp->rfapi = bgp_rfapi_new(bgp); | |
2994 | assert(bgp->rfapi); | |
2995 | assert(bgp->rfapi_cfg); | |
2996 | } | |
2997 | #endif /* ENABLE_BGP_VNC */ | |
adbac85e | 2998 | |
ddb5b488 | 2999 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
e70e9f8e PZ |
3000 | bgp->vpn_policy[afi].bgp = bgp; |
3001 | bgp->vpn_policy[afi].afi = afi; | |
ddb5b488 PZ |
3002 | bgp->vpn_policy[afi].tovpn_label = MPLS_LABEL_NONE; |
3003 | bgp->vpn_policy[afi].tovpn_zebra_vrf_label_last_sent = | |
3004 | MPLS_LABEL_NONE; | |
12a844a5 DS |
3005 | |
3006 | bgp->vpn_policy[afi].import_vrf = list_new(); | |
829e590b DS |
3007 | bgp->vpn_policy[afi].import_vrf->del = |
3008 | bgp_vrf_string_name_delete; | |
12a844a5 | 3009 | bgp->vpn_policy[afi].export_vrf = list_new(); |
829e590b DS |
3010 | bgp->vpn_policy[afi].export_vrf->del = |
3011 | bgp_vrf_string_name_delete; | |
ddb5b488 | 3012 | } |
dc95985f | 3013 | if (name) |
d62a17ae | 3014 | bgp->name = XSTRDUP(MTYPE_BGP, name); |
dc95985f | 3015 | |
3016 | thread_add_timer(bm->master, bgp_startup_timer_expire, bgp, | |
36235319 | 3017 | bgp->restart_time, &bgp->t_startup); |
06370dac | 3018 | |
3572fb26 PZ |
3019 | /* printable name we can use in debug messages */ |
3020 | if (inst_type == BGP_INSTANCE_TYPE_DEFAULT) { | |
3021 | bgp->name_pretty = XSTRDUP(MTYPE_BGP, "VRF default"); | |
3022 | } else { | |
3023 | const char *n; | |
3024 | int len; | |
3025 | ||
3026 | if (bgp->name) | |
3027 | n = bgp->name; | |
3028 | else | |
3029 | n = "?"; | |
3030 | ||
3031 | len = 4 + 1 + strlen(n) + 1; /* "view foo\0" */ | |
3032 | ||
3033 | bgp->name_pretty = XCALLOC(MTYPE_BGP, len); | |
3034 | snprintf(bgp->name_pretty, len, "%s %s", | |
3035 | (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) | |
3036 | ? "VRF" | |
3037 | : "VIEW", | |
3038 | n); | |
3039 | } | |
3040 | ||
555e09d4 QY |
3041 | atomic_store_explicit(&bgp->wpkt_quanta, BGP_WRITE_PACKET_MAX, |
3042 | memory_order_relaxed); | |
3043 | atomic_store_explicit(&bgp->rpkt_quanta, BGP_READ_PACKET_MAX, | |
3044 | memory_order_relaxed); | |
d62a17ae | 3045 | bgp->coalesce_time = BGP_DEFAULT_SUBGROUP_COALESCE_TIME; |
adbac85e | 3046 | |
d62a17ae | 3047 | QOBJ_REG(bgp, bgp); |
adbac85e | 3048 | |
d62a17ae | 3049 | update_bgp_group_init(bgp); |
92708db6 | 3050 | |
3051 | /* assign a unique rd id for auto derivation of vrf's RD */ | |
3052 | bf_assign_index(bm->rd_idspace, bgp->vrf_rd_id); | |
3053 | ||
85c8d83b CS |
3054 | bgp->evpn_info = XCALLOC(MTYPE_BGP_EVPN_INFO, |
3055 | sizeof(struct bgp_evpn_info)); | |
3056 | ||
d62a17ae | 3057 | bgp_evpn_init(bgp); |
f3d32faa | 3058 | bgp_pbr_init(bgp); |
794b37d5 | 3059 | |
3060 | /*initilize global GR FSM */ | |
3061 | bgp_global_gr_init(bgp); | |
d62a17ae | 3062 | return bgp; |
718e3744 | 3063 | } |
3064 | ||
d62a17ae | 3065 | /* Return the "default VRF" instance of BGP. */ |
3066 | struct bgp *bgp_get_default(void) | |
718e3744 | 3067 | { |
d62a17ae | 3068 | struct bgp *bgp; |
3069 | struct listnode *node, *nnode; | |
3070 | ||
3071 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) | |
3072 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
3073 | return bgp; | |
3074 | return NULL; | |
718e3744 | 3075 | } |
3076 | ||
d62a17ae | 3077 | /* Lookup BGP entry. */ |
3078 | struct bgp *bgp_lookup(as_t as, const char *name) | |
718e3744 | 3079 | { |
d62a17ae | 3080 | struct bgp *bgp; |
3081 | struct listnode *node, *nnode; | |
6b0655a2 | 3082 | |
d62a17ae | 3083 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) |
3084 | if (bgp->as == as | |
3085 | && ((bgp->name == NULL && name == NULL) | |
3086 | || (bgp->name && name && strcmp(bgp->name, name) == 0))) | |
3087 | return bgp; | |
3088 | return NULL; | |
3089 | } | |
73d70fa6 | 3090 | |
d62a17ae | 3091 | /* Lookup BGP structure by view name. */ |
3092 | struct bgp *bgp_lookup_by_name(const char *name) | |
73d70fa6 | 3093 | { |
d62a17ae | 3094 | struct bgp *bgp; |
3095 | struct listnode *node, *nnode; | |
3096 | ||
3097 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) | |
3098 | if ((bgp->name == NULL && name == NULL) | |
3099 | || (bgp->name && name && strcmp(bgp->name, name) == 0)) | |
3100 | return bgp; | |
3101 | return NULL; | |
73d70fa6 DL |
3102 | } |
3103 | ||
d62a17ae | 3104 | /* Lookup BGP instance based on VRF id. */ |
3105 | /* Note: Only to be used for incoming messages from Zebra. */ | |
3106 | struct bgp *bgp_lookup_by_vrf_id(vrf_id_t vrf_id) | |
73d70fa6 | 3107 | { |
d62a17ae | 3108 | struct vrf *vrf; |
3109 | ||
3110 | /* Lookup VRF (in tree) and follow link. */ | |
3111 | vrf = vrf_lookup_by_id(vrf_id); | |
3112 | if (!vrf) | |
3113 | return NULL; | |
3114 | return (vrf->info) ? (struct bgp *)vrf->info : NULL; | |
73d70fa6 DL |
3115 | } |
3116 | ||
e2f3a930 T |
3117 | /* Sets the BGP instance where EVPN is enabled */ |
3118 | void bgp_set_evpn(struct bgp *bgp) | |
3119 | { | |
3120 | if (bm->bgp_evpn == bgp) | |
3121 | return; | |
3122 | ||
3123 | /* First, release the reference count we hold on the instance */ | |
3124 | if (bm->bgp_evpn) | |
3125 | bgp_unlock(bm->bgp_evpn); | |
3126 | ||
3127 | bm->bgp_evpn = bgp; | |
3128 | ||
3129 | /* Increase the reference count on this new VRF */ | |
3130 | if (bm->bgp_evpn) | |
3131 | bgp_lock(bm->bgp_evpn); | |
3132 | } | |
3133 | ||
3134 | /* Returns the BGP instance where EVPN is enabled, if any */ | |
3135 | struct bgp *bgp_get_evpn(void) | |
3136 | { | |
3137 | return bm->bgp_evpn; | |
3138 | } | |
3139 | ||
e5619c28 PG |
3140 | /* handle socket creation or deletion, if necessary |
3141 | * this is called for all new BGP instances | |
3142 | */ | |
996c9314 LB |
3143 | int bgp_handle_socket(struct bgp *bgp, struct vrf *vrf, vrf_id_t old_vrf_id, |
3144 | bool create) | |
e5619c28 PG |
3145 | { |
3146 | int ret = 0; | |
3147 | ||
3148 | /* Create BGP server socket, if listen mode not disabled */ | |
3149 | if (!bgp || bgp_option_check(BGP_OPT_NO_LISTEN)) | |
3150 | return 0; | |
3ad00234 | 3151 | if (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) { |
e5619c28 PG |
3152 | /* |
3153 | * suppress vrf socket | |
3154 | */ | |
a8f58eb6 | 3155 | if (!create) { |
3ad00234 LB |
3156 | bgp_close_vrf_socket(bgp); |
3157 | return 0; | |
e5619c28 | 3158 | } |
3ad00234 LB |
3159 | if (vrf == NULL) |
3160 | return BGP_ERR_INVALID_VALUE; | |
e5619c28 PG |
3161 | /* do nothing |
3162 | * if vrf_id did not change | |
3163 | */ | |
3164 | if (vrf->vrf_id == old_vrf_id) | |
3165 | return 0; | |
3166 | if (old_vrf_id != VRF_UNKNOWN) { | |
3167 | /* look for old socket. close it. */ | |
3168 | bgp_close_vrf_socket(bgp); | |
3169 | } | |
3170 | /* if backend is not yet identified ( VRF_UNKNOWN) then | |
3171 | * creation will be done later | |
3172 | */ | |
3173 | if (vrf->vrf_id == VRF_UNKNOWN) | |
3174 | return 0; | |
3ad00234 LB |
3175 | ret = bgp_socket(bgp, bm->port, bm->address); |
3176 | if (ret < 0) | |
3177 | return BGP_ERR_INVALID_VALUE; | |
3178 | return 0; | |
3179 | } else | |
3180 | return bgp_check_main_socket(create, bgp); | |
e5619c28 PG |
3181 | } |
3182 | ||
d62a17ae | 3183 | /* Called from VTY commands. */ |
3184 | int bgp_get(struct bgp **bgp_val, as_t *as, const char *name, | |
3185 | enum bgp_instance_type inst_type) | |
3186 | { | |
3187 | struct bgp *bgp; | |
e5619c28 | 3188 | struct vrf *vrf = NULL; |
d62a17ae | 3189 | |
3190 | /* Multiple instance check. */ | |
8fbb4853 DS |
3191 | if (name) |
3192 | bgp = bgp_lookup_by_name(name); | |
3193 | else | |
d62a17ae | 3194 | bgp = bgp_get_default(); |
3195 | ||
8fbb4853 DS |
3196 | /* Already exists. */ |
3197 | if (bgp) { | |
3198 | if (bgp->as != *as) { | |
3199 | *as = bgp->as; | |
3200 | return BGP_ERR_INSTANCE_MISMATCH; | |
d62a17ae | 3201 | } |
8fbb4853 DS |
3202 | if (bgp->inst_type != inst_type) |
3203 | return BGP_ERR_INSTANCE_MISMATCH; | |
3204 | *bgp_val = bgp; | |
d5568431 | 3205 | return BGP_SUCCESS; |
d62a17ae | 3206 | } |
73d70fa6 | 3207 | |
d62a17ae | 3208 | bgp = bgp_create(as, name, inst_type); |
0b014ea6 PG |
3209 | if (bgp_option_check(BGP_OPT_NO_ZEBRA) && name) |
3210 | bgp->vrf_id = vrf_generate_id(); | |
2951a7a4 | 3211 | bgp_router_id_set(bgp, &bgp->router_id_zebra, true); |
d62a17ae | 3212 | bgp_address_init(bgp); |
db0e1937 | 3213 | bgp_tip_hash_init(bgp); |
d62a17ae | 3214 | bgp_scan_init(bgp); |
3215 | *bgp_val = bgp; | |
eb821189 | 3216 | |
d62a17ae | 3217 | bgp->t_rmap_def_originate_eval = NULL; |
e5cc509c | 3218 | |
d62a17ae | 3219 | /* If Default instance or VRF, link to the VRF structure, if present. */ |
3220 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT | |
3221 | || bgp->inst_type == BGP_INSTANCE_TYPE_VRF) { | |
d62a17ae | 3222 | vrf = bgp_vrf_lookup_by_instance_type(bgp); |
3223 | if (vrf) | |
3224 | bgp_vrf_link(bgp, vrf); | |
3225 | } | |
e5619c28 PG |
3226 | /* BGP server socket already processed if BGP instance |
3227 | * already part of the list | |
3228 | */ | |
3229 | bgp_handle_socket(bgp, vrf, VRF_UNKNOWN, true); | |
3230 | listnode_add(bm->bgp, bgp); | |
718e3744 | 3231 | |
bb4ef1ae DS |
3232 | if (IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
3233 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3234 | zlog_debug("%s: Registering BGP instance %s to zebra", | |
15569c58 | 3235 | __func__, name); |
d62a17ae | 3236 | bgp_zebra_instance_register(bgp); |
bb4ef1ae | 3237 | } |
718e3744 | 3238 | |
5d5393b9 | 3239 | return BGP_CREATED; |
718e3744 | 3240 | } |
6b0655a2 | 3241 | |
d62a17ae | 3242 | /* |
3243 | * Make BGP instance "up". Applies only to VRFs (non-default) and | |
3244 | * implies the VRF has been learnt from Zebra. | |
3245 | */ | |
3246 | void bgp_instance_up(struct bgp *bgp) | |
718e3744 | 3247 | { |
d62a17ae | 3248 | struct peer *peer; |
3249 | struct listnode *node, *next; | |
718e3744 | 3250 | |
d62a17ae | 3251 | /* Register with zebra. */ |
3252 | bgp_zebra_instance_register(bgp); | |
718e3744 | 3253 | |
d62a17ae | 3254 | /* Kick off any peers that may have been configured. */ |
3255 | for (ALL_LIST_ELEMENTS(bgp->peer, node, next, peer)) { | |
3256 | if (!BGP_PEER_START_SUPPRESSED(peer)) | |
3257 | BGP_EVENT_ADD(peer, BGP_Start); | |
718e3744 | 3258 | } |
3259 | ||
d62a17ae | 3260 | /* Process any networks that have been configured. */ |
3261 | bgp_static_add(bgp); | |
3262 | } | |
3263 | ||
3264 | /* | |
3265 | * Make BGP instance "down". Applies only to VRFs (non-default) and | |
3266 | * implies the VRF has been deleted by Zebra. | |
3267 | */ | |
3268 | void bgp_instance_down(struct bgp *bgp) | |
3269 | { | |
3270 | struct peer *peer; | |
3271 | struct listnode *node; | |
3272 | struct listnode *next; | |
3273 | ||
3274 | /* Stop timers. */ | |
3275 | if (bgp->t_rmap_def_originate_eval) { | |
3276 | BGP_TIMER_OFF(bgp->t_rmap_def_originate_eval); | |
3277 | bgp_unlock(bgp); /* TODO - This timer is started with a lock - | |
3278 | why? */ | |
718e3744 | 3279 | } |
3280 | ||
d62a17ae | 3281 | /* Bring down peers, so corresponding routes are purged. */ |
3282 | for (ALL_LIST_ELEMENTS(bgp->peer, node, next, peer)) { | |
3283 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
3284 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3285 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN); | |
3286 | else | |
3287 | bgp_session_reset(peer); | |
3288 | } | |
718e3744 | 3289 | |
d62a17ae | 3290 | /* Purge network and redistributed routes. */ |
3291 | bgp_purge_static_redist_routes(bgp); | |
ee7ca6c0 | 3292 | |
3293 | /* Cleanup registered nexthops (flags) */ | |
3294 | bgp_cleanup_nexthops(bgp); | |
718e3744 | 3295 | } |
3296 | ||
d62a17ae | 3297 | /* Delete BGP instance. */ |
3298 | int bgp_delete(struct bgp *bgp) | |
3299 | { | |
3300 | struct peer *peer; | |
3301 | struct peer_group *group; | |
3302 | struct listnode *node, *next; | |
3303 | struct vrf *vrf; | |
3304 | afi_t afi; | |
cfd47646 | 3305 | safi_t safi; |
d62a17ae | 3306 | int i; |
cfd47646 | 3307 | struct graceful_restart_info *gr_info; |
d62a17ae | 3308 | |
bf383464 | 3309 | assert(bgp); |
2b9bcf30 DL |
3310 | |
3311 | hook_call(bgp_inst_delete, bgp); | |
3312 | ||
d62a17ae | 3313 | THREAD_OFF(bgp->t_startup); |
c969b2ed DS |
3314 | THREAD_OFF(bgp->t_maxmed_onstartup); |
3315 | THREAD_OFF(bgp->t_update_delay); | |
3316 | THREAD_OFF(bgp->t_establish_wait); | |
d62a17ae | 3317 | |
9f822fa2 | 3318 | /* Set flag indicating bgp instance delete in progress */ |
892fedb6 | 3319 | SET_FLAG(bgp->flags, BGP_FLAG_DELETE_IN_PROGRESS); |
9f822fa2 | 3320 | |
cfd47646 | 3321 | /* Delete the graceful restart info */ |
3322 | FOREACH_AFI_SAFI (afi, safi) { | |
3323 | gr_info = &bgp->gr_info[afi][safi]; | |
13909c4f DS |
3324 | if (!gr_info) |
3325 | continue; | |
3326 | ||
3327 | BGP_TIMER_OFF(gr_info->t_select_deferral); | |
3328 | BGP_TIMER_OFF(gr_info->t_route_select); | |
3329 | if (gr_info->route_list) | |
3330 | list_delete(&gr_info->route_list); | |
cfd47646 | 3331 | } |
3332 | ||
d62a17ae | 3333 | if (BGP_DEBUG(zebra, ZEBRA)) { |
3334 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
3335 | zlog_debug("Deleting Default VRF"); | |
3336 | else | |
3337 | zlog_debug("Deleting %s %s", | |
3338 | (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) | |
3339 | ? "VRF" | |
3340 | : "VIEW", | |
3341 | bgp->name); | |
718e3744 | 3342 | } |
3343 | ||
10ebe1ab MK |
3344 | /* unmap from RT list */ |
3345 | bgp_evpn_vrf_delete(bgp); | |
3346 | ||
dfd17258 PG |
3347 | /* unmap bgp vrf label */ |
3348 | vpn_leak_zebra_vrf_label_withdraw(bgp, AFI_IP); | |
3349 | vpn_leak_zebra_vrf_label_withdraw(bgp, AFI_IP6); | |
3350 | ||
d62a17ae | 3351 | /* Stop timers. */ |
3352 | if (bgp->t_rmap_def_originate_eval) { | |
3353 | BGP_TIMER_OFF(bgp->t_rmap_def_originate_eval); | |
3354 | bgp_unlock(bgp); /* TODO - This timer is started with a lock - | |
3355 | why? */ | |
718e3744 | 3356 | } |
3357 | ||
d62a17ae | 3358 | /* Inform peers we're going down. */ |
3359 | for (ALL_LIST_ELEMENTS(bgp->peer, node, next, peer)) { | |
3360 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
3361 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3362 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN); | |
718e3744 | 3363 | } |
3364 | ||
d62a17ae | 3365 | /* Delete static routes (networks). */ |
3366 | bgp_static_delete(bgp); | |
6b0655a2 | 3367 | |
d62a17ae | 3368 | /* Unset redistribution. */ |
3369 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
3370 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
3371 | if (i != ZEBRA_ROUTE_BGP) | |
3372 | bgp_redistribute_unset(bgp, afi, i, 0); | |
718e3744 | 3373 | |
d62a17ae | 3374 | /* Free peers and peer-groups. */ |
3375 | for (ALL_LIST_ELEMENTS(bgp->group, node, next, group)) | |
3376 | peer_group_delete(group); | |
718e3744 | 3377 | |
d62a17ae | 3378 | for (ALL_LIST_ELEMENTS(bgp->peer, node, next, peer)) |
3379 | peer_delete(peer); | |
3380 | ||
3381 | if (bgp->peer_self) { | |
3382 | peer_delete(bgp->peer_self); | |
3383 | bgp->peer_self = NULL; | |
718e3744 | 3384 | } |
3385 | ||
d62a17ae | 3386 | update_bgp_group_free(bgp); |
718e3744 | 3387 | |
d62a17ae | 3388 | /* TODO - Other memory may need to be freed - e.g., NHT */ |
3389 | ||
49e5a4a0 | 3390 | #ifdef ENABLE_BGP_VNC |
d62a17ae | 3391 | rfapi_delete(bgp); |
3392 | #endif | |
3393 | bgp_cleanup_routes(bgp); | |
718e3744 | 3394 | |
301ad80a PG |
3395 | for (afi = 0; afi < AFI_MAX; ++afi) { |
3396 | if (!bgp->vpn_policy[afi].import_redirect_rtlist) | |
3397 | continue; | |
3398 | ecommunity_free( | |
3399 | &bgp->vpn_policy[afi] | |
3400 | .import_redirect_rtlist); | |
3401 | bgp->vpn_policy[afi].import_redirect_rtlist = NULL; | |
3402 | } | |
718e3744 | 3403 | |
d62a17ae | 3404 | /* Deregister from Zebra, if needed */ |
bb4ef1ae DS |
3405 | if (IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
3406 | if (BGP_DEBUG(zebra, ZEBRA)) | |
5e81f5dd DS |
3407 | zlog_debug( |
3408 | "%s: deregistering this bgp %s instance from zebra", | |
3409 | __func__, bgp->name); | |
d62a17ae | 3410 | bgp_zebra_instance_deregister(bgp); |
bb4ef1ae | 3411 | } |
718e3744 | 3412 | |
de6058ab AK |
3413 | /* Remove visibility via the master list - there may however still be |
3414 | * routes to be processed still referencing the struct bgp. | |
3415 | */ | |
3416 | listnode_delete(bm->bgp, bgp); | |
3417 | ||
d62a17ae | 3418 | /* Free interfaces in this instance. */ |
3419 | bgp_if_finish(bgp); | |
718e3744 | 3420 | |
d62a17ae | 3421 | vrf = bgp_vrf_lookup_by_instance_type(bgp); |
e5619c28 | 3422 | bgp_handle_socket(bgp, vrf, VRF_UNKNOWN, false); |
d62a17ae | 3423 | if (vrf) |
3424 | bgp_vrf_unlink(bgp, vrf); | |
718e3744 | 3425 | |
e2f3a930 T |
3426 | /* Update EVPN VRF pointer */ |
3427 | if (bm->bgp_evpn == bgp) { | |
3428 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
3429 | bgp_set_evpn(NULL); | |
3430 | else | |
3431 | bgp_set_evpn(bgp_get_default()); | |
3432 | } | |
3433 | ||
d62a17ae | 3434 | thread_master_free_unused(bm->master); |
3435 | bgp_unlock(bgp); /* initial reference */ | |
718e3744 | 3436 | |
d62a17ae | 3437 | return 0; |
718e3744 | 3438 | } |
6b0655a2 | 3439 | |
92375c91 | 3440 | void bgp_free(struct bgp *bgp) |
d93f7ffc | 3441 | { |
d62a17ae | 3442 | afi_t afi; |
3443 | safi_t safi; | |
3444 | struct bgp_table *table; | |
3445 | struct bgp_node *rn; | |
f8265580 | 3446 | struct bgp_rmap *rmap; |
d93f7ffc | 3447 | |
d62a17ae | 3448 | QOBJ_UNREG(bgp); |
d93f7ffc | 3449 | |
6a154c88 DL |
3450 | list_delete(&bgp->group); |
3451 | list_delete(&bgp->peer); | |
966f821c | 3452 | |
d62a17ae | 3453 | if (bgp->peerhash) { |
3454 | hash_free(bgp->peerhash); | |
3455 | bgp->peerhash = NULL; | |
3456 | } | |
718e3744 | 3457 | |
05c7a1cc QY |
3458 | FOREACH_AFI_SAFI (afi, safi) { |
3459 | /* Special handling for 2-level routing tables. */ | |
3460 | if (safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP | |
3461 | || safi == SAFI_EVPN) { | |
3462 | for (rn = bgp_table_top(bgp->rib[afi][safi]); rn; | |
3463 | rn = bgp_route_next(rn)) { | |
67009e22 | 3464 | table = bgp_node_get_bgp_table_info(rn); |
05c7a1cc | 3465 | bgp_table_finish(&table); |
d62a17ae | 3466 | } |
d62a17ae | 3467 | } |
05c7a1cc QY |
3468 | if (bgp->route[afi][safi]) |
3469 | bgp_table_finish(&bgp->route[afi][safi]); | |
3470 | if (bgp->aggregate[afi][safi]) | |
3471 | bgp_table_finish(&bgp->aggregate[afi][safi]); | |
3472 | if (bgp->rib[afi][safi]) | |
3473 | bgp_table_finish(&bgp->rib[afi][safi]); | |
3474 | rmap = &bgp->table_map[afi][safi]; | |
0a22ddfb | 3475 | XFREE(MTYPE_ROUTE_MAP_NAME, rmap->name); |
05c7a1cc | 3476 | } |
718e3744 | 3477 | |
d62a17ae | 3478 | bgp_scan_finish(bgp); |
3479 | bgp_address_destroy(bgp); | |
db0e1937 | 3480 | bgp_tip_hash_destroy(bgp); |
966f821c | 3481 | |
92708db6 | 3482 | /* release the auto RD id */ |
3483 | bf_release_index(bm->rd_idspace, bgp->vrf_rd_id); | |
3484 | ||
d62a17ae | 3485 | bgp_evpn_cleanup(bgp); |
a6b07429 | 3486 | bgp_pbr_cleanup(bgp); |
85c8d83b | 3487 | XFREE(MTYPE_BGP_EVPN_INFO, bgp->evpn_info); |
829e590b DS |
3488 | |
3489 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
3490 | vpn_policy_direction_t dir; | |
3491 | ||
3492 | if (bgp->vpn_policy[afi].import_vrf) | |
6a154c88 | 3493 | list_delete(&bgp->vpn_policy[afi].import_vrf); |
829e590b | 3494 | if (bgp->vpn_policy[afi].export_vrf) |
6a154c88 | 3495 | list_delete(&bgp->vpn_policy[afi].export_vrf); |
829e590b DS |
3496 | |
3497 | dir = BGP_VPN_POLICY_DIR_FROMVPN; | |
3498 | if (bgp->vpn_policy[afi].rtlist[dir]) | |
3499 | ecommunity_free(&bgp->vpn_policy[afi].rtlist[dir]); | |
3500 | dir = BGP_VPN_POLICY_DIR_TOVPN; | |
3501 | if (bgp->vpn_policy[afi].rtlist[dir]) | |
3502 | ecommunity_free(&bgp->vpn_policy[afi].rtlist[dir]); | |
3503 | } | |
3504 | ||
0a22ddfb QY |
3505 | XFREE(MTYPE_BGP, bgp->name); |
3506 | XFREE(MTYPE_BGP, bgp->name_pretty); | |
966f821c | 3507 | |
d62a17ae | 3508 | XFREE(MTYPE_BGP, bgp); |
718e3744 | 3509 | } |
3510 | ||
d62a17ae | 3511 | struct peer *peer_lookup_by_conf_if(struct bgp *bgp, const char *conf_if) |
718e3744 | 3512 | { |
d62a17ae | 3513 | struct peer *peer; |
3514 | struct listnode *node, *nnode; | |
966f821c | 3515 | |
d62a17ae | 3516 | if (!conf_if) |
3517 | return NULL; | |
6b0655a2 | 3518 | |
d62a17ae | 3519 | if (bgp != NULL) { |
3520 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
3521 | if (peer->conf_if && !strcmp(peer->conf_if, conf_if) | |
3522 | && !CHECK_FLAG(peer->sflags, | |
3523 | PEER_STATUS_ACCEPT_PEER)) | |
3524 | return peer; | |
3525 | } else if (bm->bgp != NULL) { | |
3526 | struct listnode *bgpnode, *nbgpnode; | |
3527 | ||
3528 | for (ALL_LIST_ELEMENTS(bm->bgp, bgpnode, nbgpnode, bgp)) | |
3529 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
3530 | if (peer->conf_if | |
3531 | && !strcmp(peer->conf_if, conf_if) | |
3532 | && !CHECK_FLAG(peer->sflags, | |
3533 | PEER_STATUS_ACCEPT_PEER)) | |
3534 | return peer; | |
3535 | } | |
3536 | return NULL; | |
718e3744 | 3537 | } |
3538 | ||
d62a17ae | 3539 | struct peer *peer_lookup_by_hostname(struct bgp *bgp, const char *hostname) |
718e3744 | 3540 | { |
d62a17ae | 3541 | struct peer *peer; |
3542 | struct listnode *node, *nnode; | |
6b0655a2 | 3543 | |
d62a17ae | 3544 | if (!hostname) |
3545 | return NULL; | |
6b0655a2 | 3546 | |
d62a17ae | 3547 | if (bgp != NULL) { |
3548 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
3549 | if (peer->hostname && !strcmp(peer->hostname, hostname) | |
3550 | && !CHECK_FLAG(peer->sflags, | |
3551 | PEER_STATUS_ACCEPT_PEER)) | |
3552 | return peer; | |
3553 | } else if (bm->bgp != NULL) { | |
3554 | struct listnode *bgpnode, *nbgpnode; | |
3555 | ||
3556 | for (ALL_LIST_ELEMENTS(bm->bgp, bgpnode, nbgpnode, bgp)) | |
3557 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
3558 | if (peer->hostname | |
3559 | && !strcmp(peer->hostname, hostname) | |
3560 | && !CHECK_FLAG(peer->sflags, | |
3561 | PEER_STATUS_ACCEPT_PEER)) | |
3562 | return peer; | |
3563 | } | |
3564 | return NULL; | |
3565 | } | |
3566 | ||
3567 | struct peer *peer_lookup(struct bgp *bgp, union sockunion *su) | |
3568 | { | |
3569 | struct peer *peer = NULL; | |
3570 | struct peer tmp_peer; | |
3571 | ||
3572 | memset(&tmp_peer, 0, sizeof(struct peer)); | |
3573 | ||
3574 | /* | |
3575 | * We do not want to find the doppelganger peer so search for the peer | |
3576 | * in | |
3577 | * the hash that has PEER_FLAG_CONFIG_NODE | |
3578 | */ | |
3579 | SET_FLAG(tmp_peer.flags, PEER_FLAG_CONFIG_NODE); | |
3580 | ||
3581 | tmp_peer.su = *su; | |
3582 | ||
3583 | if (bgp != NULL) { | |
3584 | peer = hash_lookup(bgp->peerhash, &tmp_peer); | |
3585 | } else if (bm->bgp != NULL) { | |
3586 | struct listnode *bgpnode, *nbgpnode; | |
3587 | ||
3588 | for (ALL_LIST_ELEMENTS(bm->bgp, bgpnode, nbgpnode, bgp)) { | |
d62a17ae | 3589 | peer = hash_lookup(bgp->peerhash, &tmp_peer); |
d62a17ae | 3590 | if (peer) |
3591 | break; | |
3592 | } | |
3593 | } | |
3594 | ||
3595 | return peer; | |
3596 | } | |
3597 | ||
3598 | struct peer *peer_create_bind_dynamic_neighbor(struct bgp *bgp, | |
3599 | union sockunion *su, | |
3600 | struct peer_group *group) | |
3601 | { | |
3602 | struct peer *peer; | |
3603 | afi_t afi; | |
3604 | safi_t safi; | |
3605 | ||
3606 | /* Create peer first; we've already checked group config is valid. */ | |
3607 | peer = peer_create(su, NULL, bgp, bgp->as, group->conf->as, | |
3608 | group->conf->as_type, 0, 0, group); | |
3609 | if (!peer) | |
3610 | return NULL; | |
3611 | ||
3612 | /* Link to group */ | |
3613 | peer = peer_lock(peer); | |
3614 | listnode_add(group->peer, peer); | |
3615 | ||
3616 | peer_group2peer_config_copy(group, peer); | |
3617 | ||
3618 | /* | |
3619 | * Bind peer for all AFs configured for the group. We don't call | |
3620 | * peer_group_bind as that is sub-optimal and does some stuff we don't | |
3621 | * want. | |
3622 | */ | |
05c7a1cc QY |
3623 | FOREACH_AFI_SAFI (afi, safi) { |
3624 | if (!group->conf->afc[afi][safi]) | |
3625 | continue; | |
3626 | peer->afc[afi][safi] = 1; | |
d62a17ae | 3627 | |
05c7a1cc QY |
3628 | if (!peer_af_find(peer, afi, safi)) |
3629 | peer_af_create(peer, afi, safi); | |
d62a17ae | 3630 | |
05c7a1cc QY |
3631 | peer_group2peer_config_copy_af(group, peer, afi, safi); |
3632 | } | |
d62a17ae | 3633 | |
3634 | /* Mark as dynamic, but also as a "config node" for other things to | |
3635 | * work. */ | |
3636 | SET_FLAG(peer->flags, PEER_FLAG_DYNAMIC_NEIGHBOR); | |
3637 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); | |
3638 | ||
3639 | return peer; | |
3640 | } | |
3641 | ||
3642 | struct prefix * | |
3643 | peer_group_lookup_dynamic_neighbor_range(struct peer_group *group, | |
3644 | struct prefix *prefix) | |
3645 | { | |
3646 | struct listnode *node, *nnode; | |
3647 | struct prefix *range; | |
3648 | afi_t afi; | |
3649 | ||
3650 | afi = family2afi(prefix->family); | |
3651 | ||
3652 | if (group->listen_range[afi]) | |
3653 | for (ALL_LIST_ELEMENTS(group->listen_range[afi], node, nnode, | |
3654 | range)) | |
3655 | if (prefix_match(range, prefix)) | |
3656 | return range; | |
3657 | ||
3658 | return NULL; | |
3659 | } | |
3660 | ||
3661 | struct peer_group * | |
3662 | peer_group_lookup_dynamic_neighbor(struct bgp *bgp, struct prefix *prefix, | |
3663 | struct prefix **listen_range) | |
3664 | { | |
3665 | struct prefix *range = NULL; | |
3666 | struct peer_group *group = NULL; | |
3667 | struct listnode *node, *nnode; | |
3668 | ||
3669 | *listen_range = NULL; | |
3670 | if (bgp != NULL) { | |
3671 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) | |
3672 | if ((range = peer_group_lookup_dynamic_neighbor_range( | |
3673 | group, prefix))) | |
3674 | break; | |
3675 | } else if (bm->bgp != NULL) { | |
3676 | struct listnode *bgpnode, *nbgpnode; | |
3677 | ||
3678 | for (ALL_LIST_ELEMENTS(bm->bgp, bgpnode, nbgpnode, bgp)) | |
3679 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) | |
3680 | if ((range = peer_group_lookup_dynamic_neighbor_range( | |
3681 | group, prefix))) | |
3682 | goto found_range; | |
3683 | } | |
3684 | ||
3685 | found_range: | |
3686 | *listen_range = range; | |
3687 | return (group && range) ? group : NULL; | |
3688 | } | |
3689 | ||
3690 | struct peer *peer_lookup_dynamic_neighbor(struct bgp *bgp, union sockunion *su) | |
3691 | { | |
3692 | struct peer_group *group; | |
3693 | struct bgp *gbgp; | |
3694 | struct peer *peer; | |
3695 | struct prefix prefix; | |
3696 | struct prefix *listen_range; | |
3697 | int dncount; | |
3698 | char buf[PREFIX2STR_BUFFER]; | |
3699 | char buf1[PREFIX2STR_BUFFER]; | |
3700 | ||
3701 | sockunion2hostprefix(su, &prefix); | |
3702 | ||
3703 | /* See if incoming connection matches a configured listen range. */ | |
3704 | group = peer_group_lookup_dynamic_neighbor(bgp, &prefix, &listen_range); | |
3705 | ||
3706 | if (!group) | |
3707 | return NULL; | |
3708 | ||
3709 | ||
3710 | gbgp = group->bgp; | |
3711 | ||
3712 | if (!gbgp) | |
3713 | return NULL; | |
3714 | ||
3715 | prefix2str(&prefix, buf, sizeof(buf)); | |
3716 | prefix2str(listen_range, buf1, sizeof(buf1)); | |
3717 | ||
3718 | if (bgp_debug_neighbor_events(NULL)) | |
3719 | zlog_debug( | |
3720 | "Dynamic Neighbor %s matches group %s listen range %s", | |
3721 | buf, group->name, buf1); | |
3722 | ||
3723 | /* Are we within the listen limit? */ | |
3724 | dncount = gbgp->dynamic_neighbors_count; | |
3725 | ||
3726 | if (dncount >= gbgp->dynamic_neighbors_limit) { | |
3727 | if (bgp_debug_neighbor_events(NULL)) | |
3728 | zlog_debug("Dynamic Neighbor %s rejected - at limit %d", | |
3729 | inet_sutop(su, buf), | |
3730 | gbgp->dynamic_neighbors_limit); | |
3731 | return NULL; | |
3732 | } | |
3733 | ||
3734 | /* Ensure group is not disabled. */ | |
3735 | if (CHECK_FLAG(group->conf->flags, PEER_FLAG_SHUTDOWN)) { | |
3736 | if (bgp_debug_neighbor_events(NULL)) | |
3737 | zlog_debug( | |
3738 | "Dynamic Neighbor %s rejected - group %s disabled", | |
3739 | buf, group->name); | |
3740 | return NULL; | |
3741 | } | |
3742 | ||
3743 | /* Check that at least one AF is activated for the group. */ | |
3744 | if (!peer_group_af_configured(group)) { | |
3745 | if (bgp_debug_neighbor_events(NULL)) | |
3746 | zlog_debug( | |
3747 | "Dynamic Neighbor %s rejected - no AF activated for group %s", | |
3748 | buf, group->name); | |
3749 | return NULL; | |
3750 | } | |
3751 | ||
3752 | /* Create dynamic peer and bind to associated group. */ | |
3753 | peer = peer_create_bind_dynamic_neighbor(gbgp, su, group); | |
3754 | assert(peer); | |
3755 | ||
3756 | gbgp->dynamic_neighbors_count = ++dncount; | |
3757 | ||
3758 | if (bgp_debug_neighbor_events(peer)) | |
3759 | zlog_debug("%s Dynamic Neighbor added, group %s count %d", | |
3760 | peer->host, group->name, dncount); | |
3761 | ||
3762 | return peer; | |
3763 | } | |
3764 | ||
cc32742c | 3765 | static void peer_drop_dynamic_neighbor(struct peer *peer) |
d62a17ae | 3766 | { |
3767 | int dncount = -1; | |
cc32742c | 3768 | if (peer->group->bgp) { |
d62a17ae | 3769 | dncount = peer->group->bgp->dynamic_neighbors_count; |
3770 | if (dncount) | |
3771 | peer->group->bgp->dynamic_neighbors_count = --dncount; | |
3772 | } | |
3773 | if (bgp_debug_neighbor_events(peer)) | |
3774 | zlog_debug("%s dropped from group %s, count %d", peer->host, | |
3775 | peer->group->name, dncount); | |
3776 | } | |
3777 | ||
d62a17ae | 3778 | /* If peer is configured at least one address family return 1. */ |
3dc339cd | 3779 | bool peer_active(struct peer *peer) |
d62a17ae | 3780 | { |
3781 | if (BGP_PEER_SU_UNSPEC(peer)) | |
3dc339cd | 3782 | return false; |
d62a17ae | 3783 | if (peer->afc[AFI_IP][SAFI_UNICAST] || peer->afc[AFI_IP][SAFI_MULTICAST] |
3784 | || peer->afc[AFI_IP][SAFI_LABELED_UNICAST] | |
3785 | || peer->afc[AFI_IP][SAFI_MPLS_VPN] || peer->afc[AFI_IP][SAFI_ENCAP] | |
7c40bf39 | 3786 | || peer->afc[AFI_IP][SAFI_FLOWSPEC] |
d62a17ae | 3787 | || peer->afc[AFI_IP6][SAFI_UNICAST] |
3788 | || peer->afc[AFI_IP6][SAFI_MULTICAST] | |
3789 | || peer->afc[AFI_IP6][SAFI_LABELED_UNICAST] | |
3790 | || peer->afc[AFI_IP6][SAFI_MPLS_VPN] | |
3791 | || peer->afc[AFI_IP6][SAFI_ENCAP] | |
7c40bf39 | 3792 | || peer->afc[AFI_IP6][SAFI_FLOWSPEC] |
d62a17ae | 3793 | || peer->afc[AFI_L2VPN][SAFI_EVPN]) |
3dc339cd DA |
3794 | return true; |
3795 | return false; | |
d62a17ae | 3796 | } |
3797 | ||
3798 | /* If peer is negotiated at least one address family return 1. */ | |
3dc339cd | 3799 | bool peer_active_nego(struct peer *peer) |
d62a17ae | 3800 | { |
3801 | if (peer->afc_nego[AFI_IP][SAFI_UNICAST] | |
3802 | || peer->afc_nego[AFI_IP][SAFI_MULTICAST] | |
3803 | || peer->afc_nego[AFI_IP][SAFI_LABELED_UNICAST] | |
3804 | || peer->afc_nego[AFI_IP][SAFI_MPLS_VPN] | |
3805 | || peer->afc_nego[AFI_IP][SAFI_ENCAP] | |
7c40bf39 | 3806 | || peer->afc_nego[AFI_IP][SAFI_FLOWSPEC] |
d62a17ae | 3807 | || peer->afc_nego[AFI_IP6][SAFI_UNICAST] |
3808 | || peer->afc_nego[AFI_IP6][SAFI_MULTICAST] | |
3809 | || peer->afc_nego[AFI_IP6][SAFI_LABELED_UNICAST] | |
3810 | || peer->afc_nego[AFI_IP6][SAFI_MPLS_VPN] | |
3811 | || peer->afc_nego[AFI_IP6][SAFI_ENCAP] | |
7c40bf39 | 3812 | || peer->afc_nego[AFI_IP6][SAFI_FLOWSPEC] |
d62a17ae | 3813 | || peer->afc_nego[AFI_L2VPN][SAFI_EVPN]) |
3dc339cd DA |
3814 | return true; |
3815 | return false; | |
d62a17ae | 3816 | } |
3817 | ||
dcc68b5e | 3818 | void peer_change_action(struct peer *peer, afi_t afi, safi_t safi, |
d62a17ae | 3819 | enum peer_change_type type) |
3820 | { | |
3821 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
3822 | return; | |
3823 | ||
3824 | if (peer->status != Established) | |
3825 | return; | |
3826 | ||
3827 | if (type == peer_change_reset) { | |
3828 | /* If we're resetting session, we've to delete both peer struct | |
3829 | */ | |
3830 | if ((peer->doppelganger) | |
3831 | && (peer->doppelganger->status != Deleted) | |
3832 | && (!CHECK_FLAG(peer->doppelganger->flags, | |
3833 | PEER_FLAG_CONFIG_NODE))) | |
3834 | peer_delete(peer->doppelganger); | |
3835 | ||
3836 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3837 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
3838 | } else if (type == peer_change_reset_in) { | |
3839 | if (CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_OLD_RCV) | |
3840 | || CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_NEW_RCV)) | |
3841 | bgp_route_refresh_send(peer, afi, safi, 0, 0, 0); | |
3842 | else { | |
3843 | if ((peer->doppelganger) | |
3844 | && (peer->doppelganger->status != Deleted) | |
3845 | && (!CHECK_FLAG(peer->doppelganger->flags, | |
3846 | PEER_FLAG_CONFIG_NODE))) | |
3847 | peer_delete(peer->doppelganger); | |
3848 | ||
3849 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3850 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
3851 | } | |
3852 | } else if (type == peer_change_reset_out) { | |
3853 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
3854 | bgp_announce_route(peer, afi, safi); | |
3855 | } | |
3856 | } | |
3857 | ||
3858 | struct peer_flag_action { | |
3859 | /* Peer's flag. */ | |
d7c0a89a | 3860 | uint32_t flag; |
d62a17ae | 3861 | |
3862 | /* This flag can be set for peer-group member. */ | |
d7c0a89a | 3863 | uint8_t not_for_member; |
d62a17ae | 3864 | |
3865 | /* Action when the flag is changed. */ | |
3866 | enum peer_change_type type; | |
d62a17ae | 3867 | }; |
3868 | ||
3869 | static const struct peer_flag_action peer_flag_action_list[] = { | |
3870 | {PEER_FLAG_PASSIVE, 0, peer_change_reset}, | |
3871 | {PEER_FLAG_SHUTDOWN, 0, peer_change_reset}, | |
3872 | {PEER_FLAG_DONT_CAPABILITY, 0, peer_change_none}, | |
3873 | {PEER_FLAG_OVERRIDE_CAPABILITY, 0, peer_change_none}, | |
3874 | {PEER_FLAG_STRICT_CAP_MATCH, 0, peer_change_none}, | |
3875 | {PEER_FLAG_DYNAMIC_CAPABILITY, 0, peer_change_reset}, | |
3876 | {PEER_FLAG_DISABLE_CONNECTED_CHECK, 0, peer_change_reset}, | |
3877 | {PEER_FLAG_CAPABILITY_ENHE, 0, peer_change_reset}, | |
47cbc09b | 3878 | {PEER_FLAG_ENFORCE_FIRST_AS, 0, peer_change_reset_in}, |
afad5ced | 3879 | {PEER_FLAG_IFPEER_V6ONLY, 0, peer_change_reset}, |
b90a8e13 PM |
3880 | {PEER_FLAG_ROUTEADV, 0, peer_change_none}, |
3881 | {PEER_FLAG_TIMER, 0, peer_change_none}, | |
3882 | {PEER_FLAG_TIMER_CONNECT, 0, peer_change_none}, | |
a14810f4 PM |
3883 | {PEER_FLAG_PASSWORD, 0, peer_change_none}, |
3884 | {PEER_FLAG_LOCAL_AS, 0, peer_change_none}, | |
3885 | {PEER_FLAG_LOCAL_AS_NO_PREPEND, 0, peer_change_none}, | |
3886 | {PEER_FLAG_LOCAL_AS_REPLACE_AS, 0, peer_change_none}, | |
3887 | {PEER_FLAG_UPDATE_SOURCE, 0, peer_change_none}, | |
d62a17ae | 3888 | {0, 0, 0}}; |
3889 | ||
3890 | static const struct peer_flag_action peer_af_flag_action_list[] = { | |
3891 | {PEER_FLAG_SEND_COMMUNITY, 1, peer_change_reset_out}, | |
3892 | {PEER_FLAG_SEND_EXT_COMMUNITY, 1, peer_change_reset_out}, | |
3893 | {PEER_FLAG_SEND_LARGE_COMMUNITY, 1, peer_change_reset_out}, | |
3894 | {PEER_FLAG_NEXTHOP_SELF, 1, peer_change_reset_out}, | |
3895 | {PEER_FLAG_REFLECTOR_CLIENT, 1, peer_change_reset}, | |
3896 | {PEER_FLAG_RSERVER_CLIENT, 1, peer_change_reset}, | |
3897 | {PEER_FLAG_SOFT_RECONFIG, 0, peer_change_reset_in}, | |
3898 | {PEER_FLAG_AS_PATH_UNCHANGED, 1, peer_change_reset_out}, | |
3899 | {PEER_FLAG_NEXTHOP_UNCHANGED, 1, peer_change_reset_out}, | |
3900 | {PEER_FLAG_MED_UNCHANGED, 1, peer_change_reset_out}, | |
598ce6bd | 3901 | {PEER_FLAG_DEFAULT_ORIGINATE, 0, peer_change_none}, |
d62a17ae | 3902 | {PEER_FLAG_REMOVE_PRIVATE_AS, 1, peer_change_reset_out}, |
3903 | {PEER_FLAG_ALLOWAS_IN, 0, peer_change_reset_in}, | |
3904 | {PEER_FLAG_ALLOWAS_IN_ORIGIN, 0, peer_change_reset_in}, | |
3905 | {PEER_FLAG_ORF_PREFIX_SM, 1, peer_change_reset}, | |
3906 | {PEER_FLAG_ORF_PREFIX_RM, 1, peer_change_reset}, | |
598ce6bd PM |
3907 | {PEER_FLAG_MAX_PREFIX, 0, peer_change_none}, |
3908 | {PEER_FLAG_MAX_PREFIX_WARNING, 0, peer_change_none}, | |
d62a17ae | 3909 | {PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED, 0, peer_change_reset_out}, |
3910 | {PEER_FLAG_FORCE_NEXTHOP_SELF, 1, peer_change_reset_out}, | |
3911 | {PEER_FLAG_REMOVE_PRIVATE_AS_ALL, 1, peer_change_reset_out}, | |
3912 | {PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE, 1, peer_change_reset_out}, | |
3913 | {PEER_FLAG_AS_OVERRIDE, 1, peer_change_reset_out}, | |
3914 | {PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE, 1, peer_change_reset_out}, | |
d62a17ae | 3915 | {PEER_FLAG_WEIGHT, 0, peer_change_reset_in}, |
3916 | {0, 0, 0}}; | |
3917 | ||
3918 | /* Proper action set. */ | |
3919 | static int peer_flag_action_set(const struct peer_flag_action *action_list, | |
3920 | int size, struct peer_flag_action *action, | |
d7c0a89a | 3921 | uint32_t flag) |
d62a17ae | 3922 | { |
3923 | int i; | |
3924 | int found = 0; | |
3925 | int reset_in = 0; | |
3926 | int reset_out = 0; | |
3927 | const struct peer_flag_action *match = NULL; | |
3928 | ||
3929 | /* Check peer's frag action. */ | |
3930 | for (i = 0; i < size; i++) { | |
3931 | match = &action_list[i]; | |
3932 | ||
3933 | if (match->flag == 0) | |
3934 | break; | |
3935 | ||
3936 | if (match->flag & flag) { | |
3937 | found = 1; | |
3938 | ||
3939 | if (match->type == peer_change_reset_in) | |
3940 | reset_in = 1; | |
3941 | if (match->type == peer_change_reset_out) | |
3942 | reset_out = 1; | |
3943 | if (match->type == peer_change_reset) { | |
3944 | reset_in = 1; | |
3945 | reset_out = 1; | |
3946 | } | |
3947 | if (match->not_for_member) | |
3948 | action->not_for_member = 1; | |
3949 | } | |
3950 | } | |
3951 | ||
3952 | /* Set peer clear type. */ | |
3953 | if (reset_in && reset_out) | |
3954 | action->type = peer_change_reset; | |
3955 | else if (reset_in) | |
3956 | action->type = peer_change_reset_in; | |
3957 | else if (reset_out) | |
3958 | action->type = peer_change_reset_out; | |
3959 | else | |
3960 | action->type = peer_change_none; | |
3961 | ||
3962 | return found; | |
3963 | } | |
3964 | ||
d7c0a89a | 3965 | static void peer_flag_modify_action(struct peer *peer, uint32_t flag) |
d62a17ae | 3966 | { |
3967 | if (flag == PEER_FLAG_SHUTDOWN) { | |
3968 | if (CHECK_FLAG(peer->flags, flag)) { | |
3969 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT)) | |
3970 | peer_nsf_stop(peer); | |
3971 | ||
3972 | UNSET_FLAG(peer->sflags, PEER_STATUS_PREFIX_OVERFLOW); | |
3973 | if (peer->t_pmax_restart) { | |
3974 | BGP_TIMER_OFF(peer->t_pmax_restart); | |
3975 | if (bgp_debug_neighbor_events(peer)) | |
3976 | zlog_debug( | |
3977 | "%s Maximum-prefix restart timer canceled", | |
3978 | peer->host); | |
3979 | } | |
3980 | ||
3981 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT)) | |
3982 | peer_nsf_stop(peer); | |
3983 | ||
3984 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
3985 | char *msg = peer->tx_shutdown_message; | |
3986 | size_t msglen; | |
3987 | ||
3988 | if (!msg && peer_group_active(peer)) | |
3989 | msg = peer->group->conf | |
3990 | ->tx_shutdown_message; | |
3991 | msglen = msg ? strlen(msg) : 0; | |
3992 | if (msglen > 128) | |
3993 | msglen = 128; | |
3994 | ||
3995 | if (msglen) { | |
d7c0a89a | 3996 | uint8_t msgbuf[129]; |
d62a17ae | 3997 | |
3998 | msgbuf[0] = msglen; | |
3999 | memcpy(msgbuf + 1, msg, msglen); | |
4000 | ||
4001 | bgp_notify_send_with_data( | |
4002 | peer, BGP_NOTIFY_CEASE, | |
4003 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN, | |
4004 | msgbuf, msglen + 1); | |
4005 | } else | |
4006 | bgp_notify_send( | |
4007 | peer, BGP_NOTIFY_CEASE, | |
4008 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN); | |
4009 | } else | |
4010 | bgp_session_reset(peer); | |
4011 | } else { | |
4012 | peer->v_start = BGP_INIT_START_TIMER; | |
4013 | BGP_EVENT_ADD(peer, BGP_Stop); | |
4014 | } | |
4015 | } else if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
4016 | if (flag == PEER_FLAG_DYNAMIC_CAPABILITY) | |
4017 | peer->last_reset = PEER_DOWN_CAPABILITY_CHANGE; | |
4018 | else if (flag == PEER_FLAG_PASSIVE) | |
4019 | peer->last_reset = PEER_DOWN_PASSIVE_CHANGE; | |
4020 | else if (flag == PEER_FLAG_DISABLE_CONNECTED_CHECK) | |
4021 | peer->last_reset = PEER_DOWN_MULTIHOP_CHANGE; | |
4022 | ||
4023 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4024 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4025 | } else | |
4026 | bgp_session_reset(peer); | |
4027 | } | |
4028 | ||
4029 | /* Change specified peer flag. */ | |
d7c0a89a | 4030 | static int peer_flag_modify(struct peer *peer, uint32_t flag, int set) |
d62a17ae | 4031 | { |
4032 | int found; | |
4033 | int size; | |
9fb964de PM |
4034 | bool invert, member_invert; |
4035 | struct peer *member; | |
d62a17ae | 4036 | struct listnode *node, *nnode; |
4037 | struct peer_flag_action action; | |
4038 | ||
4039 | memset(&action, 0, sizeof(struct peer_flag_action)); | |
0d6f7fd6 | 4040 | size = sizeof(peer_flag_action_list) / sizeof(struct peer_flag_action); |
d62a17ae | 4041 | |
9fb964de | 4042 | invert = CHECK_FLAG(peer->flags_invert, flag); |
d62a17ae | 4043 | found = peer_flag_action_set(peer_flag_action_list, size, &action, |
4044 | flag); | |
4045 | ||
9fb964de | 4046 | /* Abort if no flag action exists. */ |
d62a17ae | 4047 | if (!found) |
4048 | return BGP_ERR_INVALID_FLAG; | |
4049 | ||
9fb964de | 4050 | /* Check for flag conflict: STRICT_CAP_MATCH && OVERRIDE_CAPABILITY */ |
d62a17ae | 4051 | if (set && CHECK_FLAG(peer->flags | flag, PEER_FLAG_STRICT_CAP_MATCH) |
4052 | && CHECK_FLAG(peer->flags | flag, PEER_FLAG_OVERRIDE_CAPABILITY)) | |
4053 | return BGP_ERR_PEER_FLAG_CONFLICT; | |
4054 | ||
9fb964de | 4055 | /* Handle flag updates where desired state matches current state. */ |
d62a17ae | 4056 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
9fb964de PM |
4057 | if (set && CHECK_FLAG(peer->flags, flag)) { |
4058 | COND_FLAG(peer->flags_override, flag, !invert); | |
d62a17ae | 4059 | return 0; |
9fb964de PM |
4060 | } |
4061 | ||
4062 | if (!set && !CHECK_FLAG(peer->flags, flag)) { | |
4063 | COND_FLAG(peer->flags_override, flag, invert); | |
d62a17ae | 4064 | return 0; |
9fb964de | 4065 | } |
d62a17ae | 4066 | } |
4067 | ||
9fb964de PM |
4068 | /* Inherit from peer-group or set/unset flags accordingly. */ |
4069 | if (peer_group_active(peer) && set == invert) | |
4070 | peer_flag_inherit(peer, flag); | |
d62a17ae | 4071 | else |
9fb964de | 4072 | COND_FLAG(peer->flags, flag, set); |
d62a17ae | 4073 | |
9fb964de | 4074 | /* Check if handling a regular peer. */ |
d62a17ae | 4075 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
9fb964de PM |
4076 | /* Update flag override state accordingly. */ |
4077 | COND_FLAG(peer->flags_override, flag, set != invert); | |
4078 | ||
b3a3290e DS |
4079 | /* |
4080 | * For the extended next-hop encoding flag we need to turn RAs | |
4081 | * on if flag is being set, but only turn RAs off if the flag | |
4082 | * is being unset on this peer and if this peer is a member of a | |
4083 | * peer-group, the peer-group also doesn't have the flag set. | |
4084 | */ | |
4085 | if (flag == PEER_FLAG_CAPABILITY_ENHE) { | |
4086 | if (set) { | |
4087 | bgp_zebra_initiate_radv(peer->bgp, peer); | |
4088 | } else if (peer_group_active(peer)) { | |
4089 | if (!CHECK_FLAG(peer->group->conf->flags, flag)) | |
4090 | bgp_zebra_terminate_radv(peer->bgp, | |
4091 | peer); | |
4092 | } else | |
4093 | bgp_zebra_terminate_radv(peer->bgp, peer); | |
4094 | } | |
087a1c6c | 4095 | |
9fb964de | 4096 | /* Execute flag action on peer. */ |
d62a17ae | 4097 | if (action.type == peer_change_reset) |
4098 | peer_flag_modify_action(peer, flag); | |
4099 | ||
9fb964de | 4100 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 4101 | return 0; |
4102 | } | |
4103 | ||
9fb964de PM |
4104 | /* |
4105 | * Update peer-group members, unless they are explicitely overriding | |
4106 | * peer-group configuration. | |
4107 | */ | |
4108 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4109 | /* Skip peers with overridden configuration. */ | |
4110 | if (CHECK_FLAG(member->flags_override, flag)) | |
4111 | continue; | |
d62a17ae | 4112 | |
527de3dc PM |
4113 | /* Check if only member without group is inverted. */ |
4114 | member_invert = | |
4115 | CHECK_FLAG(member->flags_invert, flag) && !invert; | |
d62a17ae | 4116 | |
9fb964de PM |
4117 | /* Skip peers with equivalent configuration. */ |
4118 | if (set != member_invert && CHECK_FLAG(member->flags, flag)) | |
d62a17ae | 4119 | continue; |
4120 | ||
9fb964de | 4121 | if (set == member_invert && !CHECK_FLAG(member->flags, flag)) |
d62a17ae | 4122 | continue; |
4123 | ||
9fb964de PM |
4124 | /* Update flag on peer-group member. */ |
4125 | COND_FLAG(member->flags, flag, set != member_invert); | |
d62a17ae | 4126 | |
b3a3290e DS |
4127 | if (flag == PEER_FLAG_CAPABILITY_ENHE) |
4128 | set ? bgp_zebra_initiate_radv(member->bgp, member) | |
4129 | : bgp_zebra_terminate_radv(member->bgp, member); | |
1ea03b90 | 4130 | |
9fb964de | 4131 | /* Execute flag action on peer-group member. */ |
d62a17ae | 4132 | if (action.type == peer_change_reset) |
9fb964de | 4133 | peer_flag_modify_action(member, flag); |
d62a17ae | 4134 | } |
9fb964de | 4135 | |
d62a17ae | 4136 | return 0; |
4137 | } | |
4138 | ||
d7c0a89a | 4139 | int peer_flag_set(struct peer *peer, uint32_t flag) |
d62a17ae | 4140 | { |
4141 | return peer_flag_modify(peer, flag, 1); | |
4142 | } | |
4143 | ||
d7c0a89a | 4144 | int peer_flag_unset(struct peer *peer, uint32_t flag) |
d62a17ae | 4145 | { |
4146 | return peer_flag_modify(peer, flag, 0); | |
4147 | } | |
4148 | ||
4149 | static int peer_af_flag_modify(struct peer *peer, afi_t afi, safi_t safi, | |
27c05d4d | 4150 | uint32_t flag, bool set) |
d62a17ae | 4151 | { |
4152 | int found; | |
4153 | int size; | |
527de3dc | 4154 | bool invert, member_invert; |
527de3dc | 4155 | struct peer *member; |
d62a17ae | 4156 | struct listnode *node, *nnode; |
d62a17ae | 4157 | struct peer_flag_action action; |
469cbb0f | 4158 | bgp_peer_sort_t ptype; |
d62a17ae | 4159 | |
4160 | memset(&action, 0, sizeof(struct peer_flag_action)); | |
0d6f7fd6 | 4161 | size = sizeof(peer_af_flag_action_list) |
d62a17ae | 4162 | / sizeof(struct peer_flag_action); |
4163 | ||
27c05d4d | 4164 | invert = CHECK_FLAG(peer->af_flags_invert[afi][safi], flag); |
d62a17ae | 4165 | found = peer_flag_action_set(peer_af_flag_action_list, size, &action, |
4166 | flag); | |
4167 | ||
527de3dc | 4168 | /* Abort if flag action exists. */ |
d62a17ae | 4169 | if (!found) |
4170 | return BGP_ERR_INVALID_FLAG; | |
4171 | ||
469cbb0f | 4172 | ptype = peer_sort(peer); |
d62a17ae | 4173 | /* Special check for reflector client. */ |
469cbb0f | 4174 | if (flag & PEER_FLAG_REFLECTOR_CLIENT && ptype != BGP_PEER_IBGP) |
d62a17ae | 4175 | return BGP_ERR_NOT_INTERNAL_PEER; |
4176 | ||
4177 | /* Special check for remove-private-AS. */ | |
469cbb0f | 4178 | if (flag & PEER_FLAG_REMOVE_PRIVATE_AS && ptype == BGP_PEER_IBGP) |
d62a17ae | 4179 | return BGP_ERR_REMOVE_PRIVATE_AS; |
4180 | ||
4181 | /* as-override is not allowed for IBGP peers */ | |
469cbb0f | 4182 | if (flag & PEER_FLAG_AS_OVERRIDE && ptype == BGP_PEER_IBGP) |
d62a17ae | 4183 | return BGP_ERR_AS_OVERRIDE; |
4184 | ||
527de3dc | 4185 | /* Handle flag updates where desired state matches current state. */ |
d62a17ae | 4186 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
598ce6bd | 4187 | if (set && CHECK_FLAG(peer->af_flags[afi][safi], flag)) { |
527de3dc PM |
4188 | COND_FLAG(peer->af_flags_override[afi][safi], flag, |
4189 | !invert); | |
d62a17ae | 4190 | return 0; |
598ce6bd PM |
4191 | } |
4192 | ||
4193 | if (!set && !CHECK_FLAG(peer->af_flags[afi][safi], flag)) { | |
527de3dc PM |
4194 | COND_FLAG(peer->af_flags_override[afi][safi], flag, |
4195 | invert); | |
d62a17ae | 4196 | return 0; |
598ce6bd | 4197 | } |
d62a17ae | 4198 | } |
4199 | ||
ace295a9 MK |
4200 | /* |
4201 | * For EVPN we implicitly set the NEXTHOP_UNCHANGED flag, | |
4202 | * if we are setting/unsetting flags which conflict with this flag | |
4203 | * handle accordingly | |
4204 | */ | |
4205 | if (afi == AFI_L2VPN && safi == SAFI_EVPN) { | |
4206 | if (set) { | |
4207 | ||
3518f352 DS |
4208 | /* |
4209 | * if we are setting NEXTHOP_SELF, we need to unset the | |
4210 | * NEXTHOP_UNCHANGED flag | |
4211 | */ | |
ace295a9 MK |
4212 | if (CHECK_FLAG(flag, PEER_FLAG_NEXTHOP_SELF) || |
4213 | CHECK_FLAG(flag, PEER_FLAG_FORCE_NEXTHOP_SELF)) | |
4214 | UNSET_FLAG(peer->af_flags[afi][safi], | |
4215 | PEER_FLAG_NEXTHOP_UNCHANGED); | |
4216 | } else { | |
4217 | ||
3518f352 DS |
4218 | /* |
4219 | * if we are unsetting NEXTHOP_SELF, we need to set the | |
ace295a9 MK |
4220 | * NEXTHOP_UNCHANGED flag to reset the defaults for EVPN |
4221 | */ | |
4222 | if (CHECK_FLAG(flag, PEER_FLAG_NEXTHOP_SELF) || | |
4223 | CHECK_FLAG(flag, PEER_FLAG_FORCE_NEXTHOP_SELF)) | |
4224 | SET_FLAG(peer->af_flags[afi][safi], | |
4225 | PEER_FLAG_NEXTHOP_UNCHANGED); | |
4226 | } | |
4227 | } | |
4228 | ||
99819027 DS |
4229 | /* |
4230 | * If the peer is a route server client let's not | |
4231 | * muck with the nexthop on the way out the door | |
4232 | */ | |
4233 | if (flag & PEER_FLAG_RSERVER_CLIENT) { | |
4234 | if (set) | |
4235 | SET_FLAG(peer->af_flags[afi][safi], | |
4236 | PEER_FLAG_NEXTHOP_UNCHANGED); | |
4237 | else | |
4238 | UNSET_FLAG(peer->af_flags[afi][safi], | |
4239 | PEER_FLAG_NEXTHOP_UNCHANGED); | |
4240 | } | |
4241 | ||
527de3dc PM |
4242 | /* Inherit from peer-group or set/unset flags accordingly. */ |
4243 | if (peer_group_active(peer) && set == invert) | |
4244 | peer_af_flag_inherit(peer, afi, safi, flag); | |
4245 | else | |
4246 | COND_FLAG(peer->af_flags[afi][safi], flag, set); | |
d62a17ae | 4247 | |
4248 | /* Execute action when peer is established. */ | |
4249 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP) | |
4250 | && peer->status == Established) { | |
4251 | if (!set && flag == PEER_FLAG_SOFT_RECONFIG) | |
4252 | bgp_clear_adj_in(peer, afi, safi); | |
4253 | else { | |
4254 | if (flag == PEER_FLAG_REFLECTOR_CLIENT) | |
4255 | peer->last_reset = PEER_DOWN_RR_CLIENT_CHANGE; | |
4256 | else if (flag == PEER_FLAG_RSERVER_CLIENT) | |
4257 | peer->last_reset = PEER_DOWN_RS_CLIENT_CHANGE; | |
4258 | else if (flag == PEER_FLAG_ORF_PREFIX_SM) | |
4259 | peer->last_reset = PEER_DOWN_CAPABILITY_CHANGE; | |
4260 | else if (flag == PEER_FLAG_ORF_PREFIX_RM) | |
4261 | peer->last_reset = PEER_DOWN_CAPABILITY_CHANGE; | |
4262 | ||
4263 | peer_change_action(peer, afi, safi, action.type); | |
4264 | } | |
4265 | } | |
4266 | ||
527de3dc PM |
4267 | /* Check if handling a regular peer. */ |
4268 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4269 | COND_FLAG(peer->af_flags_override[afi][safi], flag, | |
4270 | set != invert); | |
4271 | } else { | |
4272 | /* | |
4273 | * Update peer-group members, unless they are explicitely | |
4274 | * overriding peer-group configuration. | |
4275 | */ | |
4276 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, | |
4277 | member)) { | |
4278 | /* Skip peers with overridden configuration. */ | |
4279 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
598ce6bd PM |
4280 | flag)) |
4281 | continue; | |
4282 | ||
527de3dc PM |
4283 | /* Check if only member without group is inverted. */ |
4284 | member_invert = | |
4285 | CHECK_FLAG(member->af_flags_invert[afi][safi], | |
4286 | flag) | |
4287 | && !invert; | |
4288 | ||
4289 | /* Skip peers with equivalent configuration. */ | |
4290 | if (set != member_invert | |
4291 | && CHECK_FLAG(member->af_flags[afi][safi], flag)) | |
d62a17ae | 4292 | continue; |
4293 | ||
527de3dc PM |
4294 | if (set == member_invert |
4295 | && !CHECK_FLAG(member->af_flags[afi][safi], flag)) | |
d62a17ae | 4296 | continue; |
4297 | ||
527de3dc PM |
4298 | /* Update flag on peer-group member. */ |
4299 | COND_FLAG(member->af_flags[afi][safi], flag, | |
4300 | set != member_invert); | |
d62a17ae | 4301 | |
527de3dc PM |
4302 | /* Execute flag action on peer-group member. */ |
4303 | if (member->status == Established) { | |
d62a17ae | 4304 | if (!set && flag == PEER_FLAG_SOFT_RECONFIG) |
527de3dc | 4305 | bgp_clear_adj_in(member, afi, safi); |
d62a17ae | 4306 | else { |
4307 | if (flag == PEER_FLAG_REFLECTOR_CLIENT) | |
527de3dc | 4308 | member->last_reset = |
d62a17ae | 4309 | PEER_DOWN_RR_CLIENT_CHANGE; |
4310 | else if (flag | |
4311 | == PEER_FLAG_RSERVER_CLIENT) | |
527de3dc | 4312 | member->last_reset = |
d62a17ae | 4313 | PEER_DOWN_RS_CLIENT_CHANGE; |
4314 | else if (flag | |
4315 | == PEER_FLAG_ORF_PREFIX_SM) | |
527de3dc | 4316 | member->last_reset = |
d62a17ae | 4317 | PEER_DOWN_CAPABILITY_CHANGE; |
4318 | else if (flag | |
4319 | == PEER_FLAG_ORF_PREFIX_RM) | |
527de3dc | 4320 | member->last_reset = |
d62a17ae | 4321 | PEER_DOWN_CAPABILITY_CHANGE; |
4322 | ||
527de3dc | 4323 | peer_change_action(member, afi, safi, |
d62a17ae | 4324 | action.type); |
4325 | } | |
4326 | } | |
4327 | } | |
4328 | } | |
4329 | ||
d62a17ae | 4330 | return 0; |
4331 | } | |
4332 | ||
d7c0a89a | 4333 | int peer_af_flag_set(struct peer *peer, afi_t afi, safi_t safi, uint32_t flag) |
d62a17ae | 4334 | { |
4335 | return peer_af_flag_modify(peer, afi, safi, flag, 1); | |
4336 | } | |
4337 | ||
d7c0a89a | 4338 | int peer_af_flag_unset(struct peer *peer, afi_t afi, safi_t safi, uint32_t flag) |
d62a17ae | 4339 | { |
4340 | return peer_af_flag_modify(peer, afi, safi, flag, 0); | |
4341 | } | |
4342 | ||
4343 | ||
3dc339cd | 4344 | void peer_tx_shutdown_message_set(struct peer *peer, const char *msg) |
d62a17ae | 4345 | { |
4346 | XFREE(MTYPE_PEER_TX_SHUTDOWN_MSG, peer->tx_shutdown_message); | |
4347 | peer->tx_shutdown_message = | |
4348 | msg ? XSTRDUP(MTYPE_PEER_TX_SHUTDOWN_MSG, msg) : NULL; | |
d62a17ae | 4349 | } |
4350 | ||
3dc339cd | 4351 | void peer_tx_shutdown_message_unset(struct peer *peer) |
d62a17ae | 4352 | { |
4353 | XFREE(MTYPE_PEER_TX_SHUTDOWN_MSG, peer->tx_shutdown_message); | |
d62a17ae | 4354 | } |
4355 | ||
4356 | ||
4357 | /* EBGP multihop configuration. */ | |
4358 | int peer_ebgp_multihop_set(struct peer *peer, int ttl) | |
4359 | { | |
4360 | struct peer_group *group; | |
4361 | struct listnode *node, *nnode; | |
4362 | struct peer *peer1; | |
4363 | ||
4364 | if (peer->sort == BGP_PEER_IBGP || peer->conf_if) | |
4365 | return 0; | |
4366 | ||
4367 | /* see comment in peer_ttl_security_hops_set() */ | |
4368 | if (ttl != MAXTTL) { | |
4369 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4370 | group = peer->group; | |
e2521429 | 4371 | if (group->conf->gtsm_hops != BGP_GTSM_HOPS_DISABLED) |
d62a17ae | 4372 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; |
4373 | ||
4374 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, | |
4375 | peer1)) { | |
4376 | if (peer1->sort == BGP_PEER_IBGP) | |
4377 | continue; | |
4378 | ||
e2521429 | 4379 | if (peer1->gtsm_hops != BGP_GTSM_HOPS_DISABLED) |
d62a17ae | 4380 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; |
4381 | } | |
4382 | } else { | |
e2521429 | 4383 | if (peer->gtsm_hops != BGP_GTSM_HOPS_DISABLED) |
d62a17ae | 4384 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; |
4385 | } | |
4386 | } | |
4387 | ||
4388 | peer->ttl = ttl; | |
4389 | ||
4390 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4391 | if (peer->fd >= 0 && peer->sort != BGP_PEER_IBGP) { | |
4392 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
4393 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4394 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4395 | else | |
4396 | bgp_session_reset(peer); | |
4397 | } | |
4398 | } else { | |
4399 | group = peer->group; | |
4400 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
4401 | if (peer->sort == BGP_PEER_IBGP) | |
4402 | continue; | |
4403 | ||
4404 | peer->ttl = group->conf->ttl; | |
4405 | ||
4406 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
4407 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4408 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4409 | else | |
4410 | bgp_session_reset(peer); | |
4411 | } | |
4412 | } | |
4413 | return 0; | |
4414 | } | |
4415 | ||
4416 | int peer_ebgp_multihop_unset(struct peer *peer) | |
4417 | { | |
4418 | struct peer_group *group; | |
4419 | struct listnode *node, *nnode; | |
4420 | ||
4421 | if (peer->sort == BGP_PEER_IBGP) | |
4422 | return 0; | |
4423 | ||
e2521429 | 4424 | if (peer->gtsm_hops != BGP_GTSM_HOPS_DISABLED && peer->ttl != MAXTTL) |
d62a17ae | 4425 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; |
4426 | ||
4427 | if (peer_group_active(peer)) | |
4428 | peer->ttl = peer->group->conf->ttl; | |
4429 | else | |
a0903cd2 | 4430 | peer->ttl = BGP_DEFAULT_TTL; |
d62a17ae | 4431 | |
4432 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4433 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
4434 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4435 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4436 | else | |
4437 | bgp_session_reset(peer); | |
4438 | } else { | |
4439 | group = peer->group; | |
4440 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
4441 | if (peer->sort == BGP_PEER_IBGP) | |
4442 | continue; | |
4443 | ||
a0903cd2 | 4444 | peer->ttl = BGP_DEFAULT_TTL; |
d62a17ae | 4445 | |
4446 | if (peer->fd >= 0) { | |
4447 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
4448 | bgp_notify_send( | |
4449 | peer, BGP_NOTIFY_CEASE, | |
4450 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4451 | else | |
4452 | bgp_session_reset(peer); | |
4453 | } | |
4454 | } | |
4455 | } | |
4456 | return 0; | |
4457 | } | |
4458 | ||
4459 | /* Neighbor description. */ | |
3dc339cd | 4460 | void peer_description_set(struct peer *peer, const char *desc) |
d62a17ae | 4461 | { |
0a22ddfb | 4462 | XFREE(MTYPE_PEER_DESC, peer->desc); |
d62a17ae | 4463 | |
4464 | peer->desc = XSTRDUP(MTYPE_PEER_DESC, desc); | |
d62a17ae | 4465 | } |
4466 | ||
3dc339cd | 4467 | void peer_description_unset(struct peer *peer) |
d62a17ae | 4468 | { |
0a22ddfb | 4469 | XFREE(MTYPE_PEER_DESC, peer->desc); |
d62a17ae | 4470 | } |
4471 | ||
4472 | /* Neighbor update-source. */ | |
4473 | int peer_update_source_if_set(struct peer *peer, const char *ifname) | |
4474 | { | |
a14810f4 | 4475 | struct peer *member; |
d62a17ae | 4476 | struct listnode *node, *nnode; |
4477 | ||
a14810f4 PM |
4478 | /* Set flag and configuration on peer. */ |
4479 | peer_flag_set(peer, PEER_FLAG_UPDATE_SOURCE); | |
d62a17ae | 4480 | if (peer->update_if) { |
a14810f4 | 4481 | if (strcmp(peer->update_if, ifname) == 0) |
d62a17ae | 4482 | return 0; |
d62a17ae | 4483 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); |
d62a17ae | 4484 | } |
d62a17ae | 4485 | peer->update_if = XSTRDUP(MTYPE_PEER_UPDATE_SOURCE, ifname); |
a14810f4 PM |
4486 | sockunion_free(peer->update_source); |
4487 | peer->update_source = NULL; | |
d62a17ae | 4488 | |
a14810f4 | 4489 | /* Check if handling a regular peer. */ |
d62a17ae | 4490 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 4491 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 4492 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
4493 | peer->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4494 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4495 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4496 | } else | |
4497 | bgp_session_reset(peer); | |
a14810f4 PM |
4498 | |
4499 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 4500 | return 0; |
4501 | } | |
4502 | ||
a14810f4 PM |
4503 | /* |
4504 | * Set flag and configuration on all peer-group members, unless they are | |
4505 | * explicitely overriding peer-group configuration. | |
4506 | */ | |
4507 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4508 | /* Skip peers with overridden configuration. */ | |
4509 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_UPDATE_SOURCE)) | |
4510 | continue; | |
d62a17ae | 4511 | |
a14810f4 PM |
4512 | /* Skip peers with the same configuration. */ |
4513 | if (member->update_if) { | |
4514 | if (strcmp(member->update_if, ifname) == 0) | |
4515 | continue; | |
4516 | XFREE(MTYPE_PEER_UPDATE_SOURCE, member->update_if); | |
d62a17ae | 4517 | } |
4518 | ||
a14810f4 PM |
4519 | /* Set flag and configuration on peer-group member. */ |
4520 | SET_FLAG(member->flags, PEER_FLAG_UPDATE_SOURCE); | |
4521 | member->update_if = XSTRDUP(MTYPE_PEER_UPDATE_SOURCE, ifname); | |
4522 | sockunion_free(member->update_source); | |
4523 | member->update_source = NULL; | |
4524 | ||
4525 | /* Send notification or reset peer depending on state. */ | |
4526 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) { | |
4527 | member->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4528 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 4529 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
4530 | } else | |
a14810f4 | 4531 | bgp_session_reset(member); |
d62a17ae | 4532 | } |
a14810f4 | 4533 | |
d62a17ae | 4534 | return 0; |
4535 | } | |
4536 | ||
4537 | int peer_update_source_addr_set(struct peer *peer, const union sockunion *su) | |
4538 | { | |
a14810f4 | 4539 | struct peer *member; |
d62a17ae | 4540 | struct listnode *node, *nnode; |
4541 | ||
a14810f4 PM |
4542 | /* Set flag and configuration on peer. */ |
4543 | peer_flag_set(peer, PEER_FLAG_UPDATE_SOURCE); | |
d62a17ae | 4544 | if (peer->update_source) { |
a14810f4 | 4545 | if (sockunion_cmp(peer->update_source, su) == 0) |
d62a17ae | 4546 | return 0; |
4547 | sockunion_free(peer->update_source); | |
d62a17ae | 4548 | } |
d62a17ae | 4549 | peer->update_source = sockunion_dup(su); |
a14810f4 | 4550 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); |
d62a17ae | 4551 | |
a14810f4 | 4552 | /* Check if handling a regular peer. */ |
d62a17ae | 4553 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 4554 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 4555 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
4556 | peer->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4557 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4558 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4559 | } else | |
4560 | bgp_session_reset(peer); | |
a14810f4 PM |
4561 | |
4562 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 4563 | return 0; |
4564 | } | |
4565 | ||
a14810f4 PM |
4566 | /* |
4567 | * Set flag and configuration on all peer-group members, unless they are | |
4568 | * explicitely overriding peer-group configuration. | |
4569 | */ | |
4570 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4571 | /* Skip peers with overridden configuration. */ | |
4572 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_UPDATE_SOURCE)) | |
4573 | continue; | |
d62a17ae | 4574 | |
a14810f4 PM |
4575 | /* Skip peers with the same configuration. */ |
4576 | if (member->update_source) { | |
4577 | if (sockunion_cmp(member->update_source, su) == 0) | |
4578 | continue; | |
4579 | sockunion_free(member->update_source); | |
d62a17ae | 4580 | } |
4581 | ||
a14810f4 PM |
4582 | /* Set flag and configuration on peer-group member. */ |
4583 | SET_FLAG(member->flags, PEER_FLAG_UPDATE_SOURCE); | |
4584 | member->update_source = sockunion_dup(su); | |
4585 | XFREE(MTYPE_PEER_UPDATE_SOURCE, member->update_if); | |
4586 | ||
4587 | /* Send notification or reset peer depending on state. */ | |
4588 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) { | |
4589 | member->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4590 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 4591 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
4592 | } else | |
a14810f4 | 4593 | bgp_session_reset(member); |
d62a17ae | 4594 | } |
a14810f4 | 4595 | |
d62a17ae | 4596 | return 0; |
4597 | } | |
4598 | ||
4599 | int peer_update_source_unset(struct peer *peer) | |
4600 | { | |
a14810f4 | 4601 | struct peer *member; |
d62a17ae | 4602 | struct listnode *node, *nnode; |
4603 | ||
a14810f4 | 4604 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_UPDATE_SOURCE)) |
d62a17ae | 4605 | return 0; |
4606 | ||
a14810f4 PM |
4607 | /* Inherit configuration from peer-group if peer is member. */ |
4608 | if (peer_group_active(peer)) { | |
4609 | peer_flag_inherit(peer, PEER_FLAG_UPDATE_SOURCE); | |
4610 | PEER_SU_ATTR_INHERIT(peer, peer->group, update_source); | |
4611 | PEER_STR_ATTR_INHERIT(peer, peer->group, update_if, | |
4612 | MTYPE_PEER_UPDATE_SOURCE); | |
4613 | } else { | |
4614 | /* Otherwise remove flag and configuration from peer. */ | |
4615 | peer_flag_unset(peer, PEER_FLAG_UPDATE_SOURCE); | |
d62a17ae | 4616 | sockunion_free(peer->update_source); |
4617 | peer->update_source = NULL; | |
d62a17ae | 4618 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); |
d62a17ae | 4619 | } |
4620 | ||
a14810f4 | 4621 | /* Check if handling a regular peer. */ |
d62a17ae | 4622 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 4623 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 4624 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
4625 | peer->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4626 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4627 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4628 | } else | |
4629 | bgp_session_reset(peer); | |
a14810f4 PM |
4630 | |
4631 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 4632 | return 0; |
4633 | } | |
4634 | ||
a14810f4 PM |
4635 | /* |
4636 | * Set flag and configuration on all peer-group members, unless they are | |
4637 | * explicitely overriding peer-group configuration. | |
4638 | */ | |
4639 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4640 | /* Skip peers with overridden configuration. */ | |
4641 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_UPDATE_SOURCE)) | |
d62a17ae | 4642 | continue; |
4643 | ||
a14810f4 PM |
4644 | /* Skip peers with the same configuration. */ |
4645 | if (!CHECK_FLAG(member->flags, PEER_FLAG_UPDATE_SOURCE) | |
4646 | && !member->update_source && !member->update_if) | |
4647 | continue; | |
d62a17ae | 4648 | |
a14810f4 PM |
4649 | /* Remove flag and configuration on peer-group member. */ |
4650 | UNSET_FLAG(member->flags, PEER_FLAG_UPDATE_SOURCE); | |
4651 | sockunion_free(member->update_source); | |
4652 | member->update_source = NULL; | |
4653 | XFREE(MTYPE_PEER_UPDATE_SOURCE, member->update_if); | |
4654 | ||
4655 | /* Send notification or reset peer depending on state. */ | |
4656 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) { | |
4657 | member->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4658 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 4659 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
4660 | } else | |
a14810f4 | 4661 | bgp_session_reset(member); |
d62a17ae | 4662 | } |
a14810f4 | 4663 | |
d62a17ae | 4664 | return 0; |
4665 | } | |
4666 | ||
4667 | int peer_default_originate_set(struct peer *peer, afi_t afi, safi_t safi, | |
1de27621 | 4668 | const char *rmap, struct route_map *route_map) |
d62a17ae | 4669 | { |
598ce6bd | 4670 | struct peer *member; |
d62a17ae | 4671 | struct listnode *node, *nnode; |
4672 | ||
598ce6bd PM |
4673 | /* Set flag and configuration on peer. */ |
4674 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_DEFAULT_ORIGINATE); | |
4675 | if (rmap) { | |
4676 | if (!peer->default_rmap[afi][safi].name | |
4677 | || strcmp(rmap, peer->default_rmap[afi][safi].name) != 0) { | |
d62a17ae | 4678 | if (peer->default_rmap[afi][safi].name) |
4679 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
4680 | peer->default_rmap[afi][safi].name); | |
598ce6bd | 4681 | |
b4897fa5 | 4682 | route_map_counter_decrement(peer->default_rmap[afi][safi].map); |
d62a17ae | 4683 | peer->default_rmap[afi][safi].name = |
4684 | XSTRDUP(MTYPE_ROUTE_MAP_NAME, rmap); | |
1de27621 | 4685 | peer->default_rmap[afi][safi].map = route_map; |
b4897fa5 | 4686 | route_map_counter_increment(route_map); |
d62a17ae | 4687 | } |
598ce6bd PM |
4688 | } else if (!rmap) { |
4689 | if (peer->default_rmap[afi][safi].name) | |
4690 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
4691 | peer->default_rmap[afi][safi].name); | |
4692 | ||
b4897fa5 | 4693 | route_map_counter_decrement(peer->default_rmap[afi][safi].map); |
598ce6bd PM |
4694 | peer->default_rmap[afi][safi].name = NULL; |
4695 | peer->default_rmap[afi][safi].map = NULL; | |
d62a17ae | 4696 | } |
4697 | ||
598ce6bd | 4698 | /* Check if handling a regular peer. */ |
d62a17ae | 4699 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
598ce6bd | 4700 | /* Update peer route announcements. */ |
d62a17ae | 4701 | if (peer->status == Established && peer->afc_nego[afi][safi]) { |
4702 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
4703 | bgp_default_originate(peer, afi, safi, 0); | |
4704 | bgp_announce_route(peer, afi, safi); | |
4705 | } | |
598ce6bd PM |
4706 | |
4707 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 4708 | return 0; |
4709 | } | |
4710 | ||
598ce6bd PM |
4711 | /* |
4712 | * Set flag and configuration on all peer-group members, unless they are | |
4713 | * explicitely overriding peer-group configuration. | |
4714 | */ | |
4715 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4716 | /* Skip peers with overridden configuration. */ | |
4717 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
4718 | PEER_FLAG_DEFAULT_ORIGINATE)) | |
4719 | continue; | |
d62a17ae | 4720 | |
598ce6bd PM |
4721 | /* Set flag and configuration on peer-group member. */ |
4722 | SET_FLAG(member->af_flags[afi][safi], | |
4723 | PEER_FLAG_DEFAULT_ORIGINATE); | |
d62a17ae | 4724 | if (rmap) { |
598ce6bd | 4725 | if (member->default_rmap[afi][safi].name) |
d62a17ae | 4726 | XFREE(MTYPE_ROUTE_MAP_NAME, |
598ce6bd | 4727 | member->default_rmap[afi][safi].name); |
b4897fa5 | 4728 | route_map_counter_decrement( |
4729 | member->default_rmap[afi][safi].map); | |
598ce6bd | 4730 | member->default_rmap[afi][safi].name = |
d62a17ae | 4731 | XSTRDUP(MTYPE_ROUTE_MAP_NAME, rmap); |
1de27621 | 4732 | member->default_rmap[afi][safi].map = route_map; |
b4897fa5 | 4733 | route_map_counter_increment(route_map); |
d62a17ae | 4734 | } |
4735 | ||
598ce6bd PM |
4736 | /* Update peer route announcements. */ |
4737 | if (member->status == Established | |
4738 | && member->afc_nego[afi][safi]) { | |
4739 | update_group_adjust_peer( | |
4740 | peer_af_find(member, afi, safi)); | |
4741 | bgp_default_originate(member, afi, safi, 0); | |
4742 | bgp_announce_route(member, afi, safi); | |
d62a17ae | 4743 | } |
4744 | } | |
598ce6bd | 4745 | |
d62a17ae | 4746 | return 0; |
4747 | } | |
4748 | ||
4749 | int peer_default_originate_unset(struct peer *peer, afi_t afi, safi_t safi) | |
4750 | { | |
598ce6bd | 4751 | struct peer *member; |
d62a17ae | 4752 | struct listnode *node, *nnode; |
4753 | ||
598ce6bd PM |
4754 | /* Inherit configuration from peer-group if peer is member. */ |
4755 | if (peer_group_active(peer)) { | |
4756 | peer_af_flag_inherit(peer, afi, safi, | |
4757 | PEER_FLAG_DEFAULT_ORIGINATE); | |
e7103a96 PM |
4758 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
4759 | default_rmap[afi][safi].name, | |
4760 | MTYPE_ROUTE_MAP_NAME); | |
4761 | PEER_ATTR_INHERIT(peer, peer->group, | |
4762 | default_rmap[afi][safi].map); | |
598ce6bd PM |
4763 | } else { |
4764 | /* Otherwise remove flag and configuration from peer. */ | |
4765 | peer_af_flag_unset(peer, afi, safi, | |
4766 | PEER_FLAG_DEFAULT_ORIGINATE); | |
d62a17ae | 4767 | if (peer->default_rmap[afi][safi].name) |
4768 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
4769 | peer->default_rmap[afi][safi].name); | |
b4897fa5 | 4770 | route_map_counter_decrement(peer->default_rmap[afi][safi].map); |
d62a17ae | 4771 | peer->default_rmap[afi][safi].name = NULL; |
4772 | peer->default_rmap[afi][safi].map = NULL; | |
4773 | } | |
4774 | ||
598ce6bd | 4775 | /* Check if handling a regular peer. */ |
d62a17ae | 4776 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
598ce6bd | 4777 | /* Update peer route announcements. */ |
d62a17ae | 4778 | if (peer->status == Established && peer->afc_nego[afi][safi]) { |
4779 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
4780 | bgp_default_originate(peer, afi, safi, 1); | |
4781 | bgp_announce_route(peer, afi, safi); | |
4782 | } | |
598ce6bd PM |
4783 | |
4784 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 4785 | return 0; |
4786 | } | |
4787 | ||
598ce6bd PM |
4788 | /* |
4789 | * Remove flag and configuration from all peer-group members, unless | |
4790 | * they are explicitely overriding peer-group configuration. | |
4791 | */ | |
4792 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4793 | /* Skip peers with overridden configuration. */ | |
4794 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
4795 | PEER_FLAG_DEFAULT_ORIGINATE)) | |
4796 | continue; | |
4797 | ||
4798 | /* Remove flag and configuration on peer-group member. */ | |
d62a17ae | 4799 | UNSET_FLAG(peer->af_flags[afi][safi], |
4800 | PEER_FLAG_DEFAULT_ORIGINATE); | |
d62a17ae | 4801 | if (peer->default_rmap[afi][safi].name) |
4802 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
4803 | peer->default_rmap[afi][safi].name); | |
b4897fa5 | 4804 | route_map_counter_decrement(peer->default_rmap[afi][safi].map); |
d62a17ae | 4805 | peer->default_rmap[afi][safi].name = NULL; |
4806 | peer->default_rmap[afi][safi].map = NULL; | |
4807 | ||
598ce6bd | 4808 | /* Update peer route announcements. */ |
d62a17ae | 4809 | if (peer->status == Established && peer->afc_nego[afi][safi]) { |
4810 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
4811 | bgp_default_originate(peer, afi, safi, 1); | |
4812 | bgp_announce_route(peer, afi, safi); | |
4813 | } | |
4814 | } | |
598ce6bd | 4815 | |
d62a17ae | 4816 | return 0; |
4817 | } | |
4818 | ||
3dc339cd | 4819 | void peer_port_set(struct peer *peer, uint16_t port) |
d62a17ae | 4820 | { |
4821 | peer->port = port; | |
d62a17ae | 4822 | } |
4823 | ||
3dc339cd | 4824 | void peer_port_unset(struct peer *peer) |
d62a17ae | 4825 | { |
4826 | peer->port = BGP_PORT_DEFAULT; | |
d62a17ae | 4827 | } |
4828 | ||
4829 | /* | |
4830 | * Helper function that is called after the name of the policy | |
4831 | * being used by a peer has changed (AF specific). Automatically | |
4832 | * initiates inbound or outbound processing as needed. | |
4833 | */ | |
4834 | static void peer_on_policy_change(struct peer *peer, afi_t afi, safi_t safi, | |
4835 | int outbound) | |
4836 | { | |
4837 | if (outbound) { | |
4838 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
4839 | if (peer->status == Established) | |
4840 | bgp_announce_route(peer, afi, safi); | |
4841 | } else { | |
4842 | if (peer->status != Established) | |
4843 | return; | |
4844 | ||
4845 | if (CHECK_FLAG(peer->af_flags[afi][safi], | |
4846 | PEER_FLAG_SOFT_RECONFIG)) | |
4847 | bgp_soft_reconfig_in(peer, afi, safi); | |
4848 | else if (CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_OLD_RCV) | |
4849 | || CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_NEW_RCV)) | |
4850 | bgp_route_refresh_send(peer, afi, safi, 0, 0, 0); | |
4851 | } | |
4852 | } | |
4853 | ||
4854 | ||
4855 | /* neighbor weight. */ | |
d7c0a89a | 4856 | int peer_weight_set(struct peer *peer, afi_t afi, safi_t safi, uint16_t weight) |
d62a17ae | 4857 | { |
598ce6bd | 4858 | struct peer *member; |
d62a17ae | 4859 | struct listnode *node, *nnode; |
4860 | ||
598ce6bd PM |
4861 | /* Set flag and configuration on peer. */ |
4862 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_WEIGHT); | |
d62a17ae | 4863 | if (peer->weight[afi][safi] != weight) { |
4864 | peer->weight[afi][safi] = weight; | |
d62a17ae | 4865 | peer_on_policy_change(peer, afi, safi, 0); |
4866 | } | |
4867 | ||
598ce6bd | 4868 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 4869 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) |
4870 | return 0; | |
4871 | ||
598ce6bd PM |
4872 | /* |
4873 | * Set flag and configuration on all peer-group members, unless they are | |
4874 | * explicitely overriding peer-group configuration. | |
4875 | */ | |
4876 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4877 | /* Skip peers with overridden configuration. */ | |
4878 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
4879 | PEER_FLAG_WEIGHT)) | |
4880 | continue; | |
4881 | ||
4882 | /* Set flag and configuration on peer-group member. */ | |
4883 | SET_FLAG(member->af_flags[afi][safi], PEER_FLAG_WEIGHT); | |
4884 | if (member->weight[afi][safi] != weight) { | |
4885 | member->weight[afi][safi] = weight; | |
4886 | peer_on_policy_change(member, afi, safi, 0); | |
d62a17ae | 4887 | } |
4888 | } | |
598ce6bd | 4889 | |
d62a17ae | 4890 | return 0; |
4891 | } | |
4892 | ||
4893 | int peer_weight_unset(struct peer *peer, afi_t afi, safi_t safi) | |
4894 | { | |
598ce6bd | 4895 | struct peer *member; |
d62a17ae | 4896 | struct listnode *node, *nnode; |
4897 | ||
598ce6bd PM |
4898 | if (!CHECK_FLAG(peer->af_flags[afi][safi], PEER_FLAG_WEIGHT)) |
4899 | return 0; | |
4900 | ||
4901 | /* Inherit configuration from peer-group if peer is member. */ | |
d62a17ae | 4902 | if (peer_group_active(peer)) { |
598ce6bd | 4903 | peer_af_flag_inherit(peer, afi, safi, PEER_FLAG_WEIGHT); |
e7103a96 | 4904 | PEER_ATTR_INHERIT(peer, peer->group, weight[afi][safi]); |
d62a17ae | 4905 | |
598ce6bd PM |
4906 | peer_on_policy_change(peer, afi, safi, 0); |
4907 | return 0; | |
d62a17ae | 4908 | } |
4909 | ||
598ce6bd PM |
4910 | /* Remove flag and configuration from peer. */ |
4911 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_WEIGHT); | |
4912 | peer->weight[afi][safi] = 0; | |
4913 | peer_on_policy_change(peer, afi, safi, 0); | |
d62a17ae | 4914 | |
598ce6bd PM |
4915 | /* Skip peer-group mechanics for regular peers. */ |
4916 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
4917 | return 0; | |
d62a17ae | 4918 | |
598ce6bd PM |
4919 | /* |
4920 | * Remove flag and configuration from all peer-group members, unless | |
4921 | * they are explicitely overriding peer-group configuration. | |
4922 | */ | |
4923 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4924 | /* Skip peers with overridden configuration. */ | |
4925 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
4926 | PEER_FLAG_WEIGHT)) | |
4927 | continue; | |
4928 | ||
4929 | /* Skip peers where flag is already disabled. */ | |
4930 | if (!CHECK_FLAG(member->af_flags[afi][safi], PEER_FLAG_WEIGHT)) | |
4931 | continue; | |
4932 | ||
4933 | /* Remove flag and configuration on peer-group member. */ | |
4934 | UNSET_FLAG(member->af_flags[afi][safi], PEER_FLAG_WEIGHT); | |
4935 | member->weight[afi][safi] = 0; | |
4936 | peer_on_policy_change(member, afi, safi, 0); | |
d62a17ae | 4937 | } |
598ce6bd | 4938 | |
d62a17ae | 4939 | return 0; |
4940 | } | |
4941 | ||
d7c0a89a | 4942 | int peer_timers_set(struct peer *peer, uint32_t keepalive, uint32_t holdtime) |
d62a17ae | 4943 | { |
b90a8e13 | 4944 | struct peer *member; |
d62a17ae | 4945 | struct listnode *node, *nnode; |
4946 | ||
d62a17ae | 4947 | if (keepalive > 65535) |
4948 | return BGP_ERR_INVALID_VALUE; | |
4949 | ||
d62a17ae | 4950 | if (holdtime > 65535) |
4951 | return BGP_ERR_INVALID_VALUE; | |
4952 | ||
d62a17ae | 4953 | if (holdtime < 3 && holdtime != 0) |
4954 | return BGP_ERR_INVALID_VALUE; | |
4955 | ||
b90a8e13 PM |
4956 | /* Set flag and configuration on peer. */ |
4957 | peer_flag_set(peer, PEER_FLAG_TIMER); | |
d62a17ae | 4958 | peer->holdtime = holdtime; |
4959 | peer->keepalive = (keepalive < holdtime / 3 ? keepalive : holdtime / 3); | |
4960 | ||
b90a8e13 PM |
4961 | /* Skip peer-group mechanics for regular peers. */ |
4962 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
4963 | return 0; | |
d25e4efc | 4964 | |
b90a8e13 PM |
4965 | /* |
4966 | * Set flag and configuration on all peer-group members, unless they are | |
4967 | * explicitely overriding peer-group configuration. | |
4968 | */ | |
4969 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4970 | /* Skip peers with overridden configuration. */ | |
4971 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_TIMER)) | |
4972 | continue; | |
d25e4efc | 4973 | |
b90a8e13 PM |
4974 | /* Set flag and configuration on peer-group member. */ |
4975 | SET_FLAG(member->flags, PEER_FLAG_TIMER); | |
4976 | PEER_ATTR_INHERIT(peer, peer->group, holdtime); | |
4977 | PEER_ATTR_INHERIT(peer, peer->group, keepalive); | |
d62a17ae | 4978 | } |
d25e4efc | 4979 | |
d62a17ae | 4980 | return 0; |
4981 | } | |
4982 | ||
4983 | int peer_timers_unset(struct peer *peer) | |
4984 | { | |
b90a8e13 | 4985 | struct peer *member; |
d62a17ae | 4986 | struct listnode *node, *nnode; |
4987 | ||
b90a8e13 PM |
4988 | /* Inherit configuration from peer-group if peer is member. */ |
4989 | if (peer_group_active(peer)) { | |
4990 | peer_flag_inherit(peer, PEER_FLAG_TIMER); | |
4991 | PEER_ATTR_INHERIT(peer, peer->group, holdtime); | |
4992 | PEER_ATTR_INHERIT(peer, peer->group, keepalive); | |
4993 | } else { | |
4994 | /* Otherwise remove flag and configuration from peer. */ | |
4995 | peer_flag_unset(peer, PEER_FLAG_TIMER); | |
d25e4efc | 4996 | peer->holdtime = 0; |
b90a8e13 PM |
4997 | peer->keepalive = 0; |
4998 | } | |
d25e4efc | 4999 | |
b90a8e13 PM |
5000 | /* Skip peer-group mechanics for regular peers. */ |
5001 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
5002 | return 0; | |
5003 | ||
5004 | /* | |
5005 | * Remove flag and configuration from all peer-group members, unless | |
5006 | * they are explicitely overriding peer-group configuration. | |
5007 | */ | |
5008 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5009 | /* Skip peers with overridden configuration. */ | |
5010 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_TIMER)) | |
5011 | continue; | |
d25e4efc | 5012 | |
b90a8e13 PM |
5013 | /* Remove flag and configuration on peer-group member. */ |
5014 | UNSET_FLAG(member->flags, PEER_FLAG_TIMER); | |
5015 | member->holdtime = 0; | |
5016 | member->keepalive = 0; | |
d62a17ae | 5017 | } |
5018 | ||
5019 | return 0; | |
5020 | } | |
5021 | ||
d7c0a89a | 5022 | int peer_timers_connect_set(struct peer *peer, uint32_t connect) |
d62a17ae | 5023 | { |
b90a8e13 | 5024 | struct peer *member; |
d62a17ae | 5025 | struct listnode *node, *nnode; |
5026 | ||
5027 | if (connect > 65535) | |
5028 | return BGP_ERR_INVALID_VALUE; | |
5029 | ||
b90a8e13 PM |
5030 | /* Set flag and configuration on peer. */ |
5031 | peer_flag_set(peer, PEER_FLAG_TIMER_CONNECT); | |
d62a17ae | 5032 | peer->connect = connect; |
d62a17ae | 5033 | peer->v_connect = connect; |
5034 | ||
b90a8e13 | 5035 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 5036 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) |
5037 | return 0; | |
5038 | ||
b90a8e13 PM |
5039 | /* |
5040 | * Set flag and configuration on all peer-group members, unless they are | |
5041 | * explicitely overriding peer-group configuration. | |
5042 | */ | |
5043 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5044 | /* Skip peers with overridden configuration. */ | |
5045 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_TIMER_CONNECT)) | |
5046 | continue; | |
5047 | ||
5048 | /* Set flag and configuration on peer-group member. */ | |
5049 | SET_FLAG(member->flags, PEER_FLAG_TIMER_CONNECT); | |
5050 | member->connect = connect; | |
5051 | member->v_connect = connect; | |
d62a17ae | 5052 | } |
b90a8e13 | 5053 | |
d62a17ae | 5054 | return 0; |
5055 | } | |
5056 | ||
5057 | int peer_timers_connect_unset(struct peer *peer) | |
5058 | { | |
b90a8e13 | 5059 | struct peer *member; |
d62a17ae | 5060 | struct listnode *node, *nnode; |
5061 | ||
b90a8e13 PM |
5062 | /* Inherit configuration from peer-group if peer is member. */ |
5063 | if (peer_group_active(peer)) { | |
5064 | peer_flag_inherit(peer, PEER_FLAG_TIMER_CONNECT); | |
5065 | PEER_ATTR_INHERIT(peer, peer->group, connect); | |
5066 | } else { | |
5067 | /* Otherwise remove flag and configuration from peer. */ | |
5068 | peer_flag_unset(peer, PEER_FLAG_TIMER_CONNECT); | |
5069 | peer->connect = 0; | |
5070 | } | |
d62a17ae | 5071 | |
b90a8e13 PM |
5072 | /* Set timer with fallback to default value. */ |
5073 | if (peer->connect) | |
5074 | peer->v_connect = peer->connect; | |
5075 | else | |
5d5393b9 | 5076 | peer->v_connect = peer->bgp->default_connect_retry; |
d62a17ae | 5077 | |
b90a8e13 | 5078 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 5079 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) |
5080 | return 0; | |
5081 | ||
b90a8e13 PM |
5082 | /* |
5083 | * Remove flag and configuration from all peer-group members, unless | |
5084 | * they are explicitely overriding peer-group configuration. | |
5085 | */ | |
5086 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5087 | /* Skip peers with overridden configuration. */ | |
5088 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_TIMER_CONNECT)) | |
5089 | continue; | |
5090 | ||
5091 | /* Remove flag and configuration on peer-group member. */ | |
5092 | UNSET_FLAG(member->flags, PEER_FLAG_TIMER_CONNECT); | |
5093 | member->connect = 0; | |
5d5393b9 | 5094 | member->v_connect = peer->bgp->default_connect_retry; |
d62a17ae | 5095 | } |
b90a8e13 | 5096 | |
d62a17ae | 5097 | return 0; |
5098 | } | |
5099 | ||
d7c0a89a | 5100 | int peer_advertise_interval_set(struct peer *peer, uint32_t routeadv) |
d62a17ae | 5101 | { |
b90a8e13 | 5102 | struct peer *member; |
d62a17ae | 5103 | struct listnode *node, *nnode; |
5104 | ||
5105 | if (routeadv > 600) | |
5106 | return BGP_ERR_INVALID_VALUE; | |
5107 | ||
b90a8e13 PM |
5108 | /* Set flag and configuration on peer. */ |
5109 | peer_flag_set(peer, PEER_FLAG_ROUTEADV); | |
d62a17ae | 5110 | peer->routeadv = routeadv; |
5111 | peer->v_routeadv = routeadv; | |
5112 | ||
b90a8e13 | 5113 | /* Check if handling a regular peer. */ |
d62a17ae | 5114 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
b90a8e13 | 5115 | /* Update peer route announcements. */ |
d62a17ae | 5116 | update_group_adjust_peer_afs(peer); |
5117 | if (peer->status == Established) | |
5118 | bgp_announce_route_all(peer); | |
b90a8e13 PM |
5119 | |
5120 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5121 | return 0; |
5122 | } | |
5123 | ||
b90a8e13 PM |
5124 | /* |
5125 | * Set flag and configuration on all peer-group members, unless they are | |
5126 | * explicitely overriding peer-group configuration. | |
5127 | */ | |
5128 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5129 | /* Skip peers with overridden configuration. */ | |
5130 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_ROUTEADV)) | |
5131 | continue; | |
5132 | ||
5133 | /* Set flag and configuration on peer-group member. */ | |
5134 | SET_FLAG(member->flags, PEER_FLAG_ROUTEADV); | |
5135 | member->routeadv = routeadv; | |
5136 | member->v_routeadv = routeadv; | |
5137 | ||
5138 | /* Update peer route announcements. */ | |
5139 | update_group_adjust_peer_afs(member); | |
5140 | if (member->status == Established) | |
5141 | bgp_announce_route_all(member); | |
d62a17ae | 5142 | } |
5143 | ||
5144 | return 0; | |
5145 | } | |
5146 | ||
5147 | int peer_advertise_interval_unset(struct peer *peer) | |
5148 | { | |
b90a8e13 | 5149 | struct peer *member; |
d62a17ae | 5150 | struct listnode *node, *nnode; |
5151 | ||
b90a8e13 PM |
5152 | /* Inherit configuration from peer-group if peer is member. */ |
5153 | if (peer_group_active(peer)) { | |
5154 | peer_flag_inherit(peer, PEER_FLAG_ROUTEADV); | |
5155 | PEER_ATTR_INHERIT(peer, peer->group, routeadv); | |
5156 | } else { | |
5157 | /* Otherwise remove flag and configuration from peer. */ | |
5158 | peer_flag_unset(peer, PEER_FLAG_ROUTEADV); | |
5159 | peer->routeadv = 0; | |
5160 | } | |
d62a17ae | 5161 | |
b90a8e13 PM |
5162 | /* Set timer with fallback to default value. */ |
5163 | if (peer->routeadv) | |
5164 | peer->v_routeadv = peer->routeadv; | |
d62a17ae | 5165 | else |
b90a8e13 PM |
5166 | peer->v_routeadv = (peer->sort == BGP_PEER_IBGP) |
5167 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
5168 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 5169 | |
b90a8e13 | 5170 | /* Check if handling a regular peer. */ |
d62a17ae | 5171 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
b90a8e13 | 5172 | /* Update peer route announcements. */ |
d62a17ae | 5173 | update_group_adjust_peer_afs(peer); |
5174 | if (peer->status == Established) | |
5175 | bgp_announce_route_all(peer); | |
b90a8e13 PM |
5176 | |
5177 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5178 | return 0; |
5179 | } | |
5180 | ||
b90a8e13 PM |
5181 | /* |
5182 | * Remove flag and configuration from all peer-group members, unless | |
5183 | * they are explicitely overriding peer-group configuration. | |
5184 | */ | |
5185 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5186 | /* Skip peers with overridden configuration. */ | |
5187 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_ROUTEADV)) | |
5188 | continue; | |
d62a17ae | 5189 | |
b90a8e13 PM |
5190 | /* Remove flag and configuration on peer-group member. */ |
5191 | UNSET_FLAG(member->flags, PEER_FLAG_ROUTEADV); | |
5192 | member->routeadv = 0; | |
5193 | member->v_routeadv = (member->sort == BGP_PEER_IBGP) | |
5194 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
5195 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 5196 | |
b90a8e13 PM |
5197 | /* Update peer route announcements. */ |
5198 | update_group_adjust_peer_afs(member); | |
5199 | if (member->status == Established) | |
5200 | bgp_announce_route_all(member); | |
d62a17ae | 5201 | } |
5202 | ||
5203 | return 0; | |
5204 | } | |
5205 | ||
5206 | /* neighbor interface */ | |
5207 | void peer_interface_set(struct peer *peer, const char *str) | |
5208 | { | |
0a22ddfb | 5209 | XFREE(MTYPE_BGP_PEER_IFNAME, peer->ifname); |
d62a17ae | 5210 | peer->ifname = XSTRDUP(MTYPE_BGP_PEER_IFNAME, str); |
5211 | } | |
5212 | ||
5213 | void peer_interface_unset(struct peer *peer) | |
5214 | { | |
0a22ddfb | 5215 | XFREE(MTYPE_BGP_PEER_IFNAME, peer->ifname); |
d62a17ae | 5216 | } |
5217 | ||
5218 | /* Allow-as in. */ | |
5219 | int peer_allowas_in_set(struct peer *peer, afi_t afi, safi_t safi, | |
5220 | int allow_num, int origin) | |
5221 | { | |
598ce6bd | 5222 | struct peer *member; |
d62a17ae | 5223 | struct listnode *node, *nnode; |
5224 | ||
598ce6bd PM |
5225 | if (!origin && (allow_num < 1 || allow_num > 10)) |
5226 | return BGP_ERR_INVALID_VALUE; | |
5227 | ||
5228 | /* Set flag and configuration on peer. */ | |
5229 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_ALLOWAS_IN); | |
d62a17ae | 5230 | if (origin) { |
598ce6bd | 5231 | if (peer->allowas_in[afi][safi] != 0 |
d62a17ae | 5232 | || !CHECK_FLAG(peer->af_flags[afi][safi], |
5233 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { | |
d62a17ae | 5234 | peer_af_flag_set(peer, afi, safi, |
5235 | PEER_FLAG_ALLOWAS_IN_ORIGIN); | |
598ce6bd | 5236 | peer->allowas_in[afi][safi] = 0; |
d62a17ae | 5237 | peer_on_policy_change(peer, afi, safi, 0); |
5238 | } | |
d62a17ae | 5239 | } else { |
d62a17ae | 5240 | if (peer->allowas_in[afi][safi] != allow_num |
5241 | || CHECK_FLAG(peer->af_flags[afi][safi], | |
5242 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { | |
598ce6bd | 5243 | |
d62a17ae | 5244 | peer_af_flag_unset(peer, afi, safi, |
5245 | PEER_FLAG_ALLOWAS_IN_ORIGIN); | |
598ce6bd | 5246 | peer->allowas_in[afi][safi] = allow_num; |
d62a17ae | 5247 | peer_on_policy_change(peer, afi, safi, 0); |
5248 | } | |
598ce6bd | 5249 | } |
d62a17ae | 5250 | |
598ce6bd PM |
5251 | /* Skip peer-group mechanics for regular peers. */ |
5252 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
5253 | return 0; | |
d62a17ae | 5254 | |
598ce6bd PM |
5255 | /* |
5256 | * Set flag and configuration on all peer-group members, unless | |
5257 | * they are explicitely overriding peer-group configuration. | |
5258 | */ | |
5259 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5260 | /* Skip peers with overridden configuration. */ | |
5261 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
246bb5f0 | 5262 | PEER_FLAG_ALLOWAS_IN)) |
598ce6bd PM |
5263 | continue; |
5264 | ||
5265 | /* Set flag and configuration on peer-group member. */ | |
5266 | SET_FLAG(member->af_flags[afi][safi], PEER_FLAG_ALLOWAS_IN); | |
5267 | if (origin) { | |
5268 | if (member->allowas_in[afi][safi] != 0 | |
5269 | || !CHECK_FLAG(member->af_flags[afi][safi], | |
cf9ac8bf | 5270 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { |
598ce6bd | 5271 | SET_FLAG(member->af_flags[afi][safi], |
cf9ac8bf | 5272 | PEER_FLAG_ALLOWAS_IN_ORIGIN); |
598ce6bd PM |
5273 | member->allowas_in[afi][safi] = 0; |
5274 | peer_on_policy_change(peer, afi, safi, 0); | |
5275 | } | |
5276 | } else { | |
5277 | if (member->allowas_in[afi][safi] != allow_num | |
5278 | || CHECK_FLAG(member->af_flags[afi][safi], | |
d62a17ae | 5279 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { |
598ce6bd PM |
5280 | UNSET_FLAG(member->af_flags[afi][safi], |
5281 | PEER_FLAG_ALLOWAS_IN_ORIGIN); | |
5282 | member->allowas_in[afi][safi] = allow_num; | |
d62a17ae | 5283 | peer_on_policy_change(peer, afi, safi, 0); |
5284 | } | |
5285 | } | |
5286 | } | |
5287 | ||
5288 | return 0; | |
5289 | } | |
5290 | ||
5291 | int peer_allowas_in_unset(struct peer *peer, afi_t afi, safi_t safi) | |
5292 | { | |
598ce6bd | 5293 | struct peer *member; |
d62a17ae | 5294 | struct listnode *node, *nnode; |
5295 | ||
598ce6bd PM |
5296 | /* Skip peer if flag is already disabled. */ |
5297 | if (!CHECK_FLAG(peer->af_flags[afi][safi], PEER_FLAG_ALLOWAS_IN)) | |
5298 | return 0; | |
d62a17ae | 5299 | |
598ce6bd PM |
5300 | /* Inherit configuration from peer-group if peer is member. */ |
5301 | if (peer_group_active(peer)) { | |
5302 | peer_af_flag_inherit(peer, afi, safi, PEER_FLAG_ALLOWAS_IN); | |
5303 | peer_af_flag_inherit(peer, afi, safi, | |
cf9ac8bf | 5304 | PEER_FLAG_ALLOWAS_IN_ORIGIN); |
e7103a96 | 5305 | PEER_ATTR_INHERIT(peer, peer->group, allowas_in[afi][safi]); |
d62a17ae | 5306 | peer_on_policy_change(peer, afi, safi, 0); |
598ce6bd PM |
5307 | |
5308 | return 0; | |
5309 | } | |
5310 | ||
5311 | /* Remove flag and configuration from peer. */ | |
5312 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_ALLOWAS_IN); | |
5313 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_ALLOWAS_IN_ORIGIN); | |
5314 | peer->allowas_in[afi][safi] = 0; | |
5315 | peer_on_policy_change(peer, afi, safi, 0); | |
5316 | ||
5317 | /* Skip peer-group mechanics if handling a regular peer. */ | |
5318 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
5319 | return 0; | |
5320 | ||
5321 | /* | |
5322 | * Remove flags and configuration from all peer-group members, unless | |
5323 | * they are explicitely overriding peer-group configuration. | |
5324 | */ | |
5325 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5326 | /* Skip peers with overridden configuration. */ | |
5327 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
cf9ac8bf | 5328 | PEER_FLAG_ALLOWAS_IN)) |
598ce6bd PM |
5329 | continue; |
5330 | ||
5331 | /* Skip peers where flag is already disabled. */ | |
5332 | if (!CHECK_FLAG(member->af_flags[afi][safi], | |
cf9ac8bf | 5333 | PEER_FLAG_ALLOWAS_IN)) |
598ce6bd PM |
5334 | continue; |
5335 | ||
5336 | /* Remove flags and configuration on peer-group member. */ | |
cf9ac8bf | 5337 | UNSET_FLAG(member->af_flags[afi][safi], PEER_FLAG_ALLOWAS_IN); |
598ce6bd | 5338 | UNSET_FLAG(member->af_flags[afi][safi], |
cf9ac8bf | 5339 | PEER_FLAG_ALLOWAS_IN_ORIGIN); |
598ce6bd PM |
5340 | member->allowas_in[afi][safi] = 0; |
5341 | peer_on_policy_change(member, afi, safi, 0); | |
d62a17ae | 5342 | } |
5343 | ||
5344 | return 0; | |
5345 | } | |
5346 | ||
5347 | int peer_local_as_set(struct peer *peer, as_t as, int no_prepend, | |
5348 | int replace_as) | |
5349 | { | |
a14810f4 | 5350 | bool old_no_prepend, old_replace_as; |
d62a17ae | 5351 | struct bgp *bgp = peer->bgp; |
a14810f4 | 5352 | struct peer *member; |
d62a17ae | 5353 | struct listnode *node, *nnode; |
469cbb0f | 5354 | bgp_peer_sort_t ptype = peer_sort(peer); |
d62a17ae | 5355 | |
469cbb0f | 5356 | if (ptype != BGP_PEER_EBGP && ptype != BGP_PEER_INTERNAL) |
d62a17ae | 5357 | return BGP_ERR_LOCAL_AS_ALLOWED_ONLY_FOR_EBGP; |
5358 | ||
5359 | if (bgp->as == as) | |
5360 | return BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS; | |
5361 | ||
5362 | if (peer->as == as) | |
5363 | return BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS_REMOTE_AS; | |
5364 | ||
a14810f4 PM |
5365 | /* Save previous flag states. */ |
5366 | old_no_prepend = | |
5367 | !!CHECK_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5368 | old_replace_as = | |
5369 | !!CHECK_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
d62a17ae | 5370 | |
a14810f4 PM |
5371 | /* Set flag and configuration on peer. */ |
5372 | peer_flag_set(peer, PEER_FLAG_LOCAL_AS); | |
5373 | peer_flag_modify(peer, PEER_FLAG_LOCAL_AS_NO_PREPEND, no_prepend); | |
5374 | peer_flag_modify(peer, PEER_FLAG_LOCAL_AS_REPLACE_AS, replace_as); | |
d62a17ae | 5375 | |
a14810f4 PM |
5376 | if (peer->change_local_as == as && old_no_prepend == no_prepend |
5377 | && old_replace_as == replace_as) | |
5378 | return 0; | |
5379 | peer->change_local_as = as; | |
d62a17ae | 5380 | |
a14810f4 | 5381 | /* Check if handling a regular peer. */ |
d62a17ae | 5382 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 5383 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 5384 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
5385 | peer->last_reset = PEER_DOWN_LOCAL_AS_CHANGE; | |
5386 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5387 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5388 | } else | |
5389 | bgp_session_reset(peer); | |
a14810f4 PM |
5390 | |
5391 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5392 | return 0; |
5393 | } | |
5394 | ||
a14810f4 PM |
5395 | /* |
5396 | * Set flag and configuration on all peer-group members, unless they are | |
5397 | * explicitely overriding peer-group configuration. | |
5398 | */ | |
5399 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5400 | /* Skip peers with overridden configuration. */ | |
5401 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_LOCAL_AS)) | |
5402 | continue; | |
d62a17ae | 5403 | |
a14810f4 PM |
5404 | /* Skip peers with the same configuration. */ |
5405 | old_no_prepend = CHECK_FLAG(member->flags, | |
5406 | PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5407 | old_replace_as = CHECK_FLAG(member->flags, | |
5408 | PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
5409 | if (member->change_local_as == as | |
5410 | && CHECK_FLAG(member->flags, PEER_FLAG_LOCAL_AS) | |
5411 | && old_no_prepend == no_prepend | |
5412 | && old_replace_as == replace_as) | |
5413 | continue; | |
d62a17ae | 5414 | |
a14810f4 PM |
5415 | /* Set flag and configuration on peer-group member. */ |
5416 | SET_FLAG(member->flags, PEER_FLAG_LOCAL_AS); | |
5417 | COND_FLAG(member->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND, | |
5418 | no_prepend); | |
5419 | COND_FLAG(member->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS, | |
5420 | replace_as); | |
5421 | member->change_local_as = as; | |
5422 | ||
5423 | /* Send notification or stop peer depending on state. */ | |
5424 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) { | |
5425 | member->last_reset = PEER_DOWN_LOCAL_AS_CHANGE; | |
5426 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 5427 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
5428 | } else | |
a14810f4 | 5429 | BGP_EVENT_ADD(member, BGP_Stop); |
d62a17ae | 5430 | } |
5431 | ||
5432 | return 0; | |
5433 | } | |
5434 | ||
5435 | int peer_local_as_unset(struct peer *peer) | |
5436 | { | |
a14810f4 | 5437 | struct peer *member; |
d62a17ae | 5438 | struct listnode *node, *nnode; |
5439 | ||
a14810f4 | 5440 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_LOCAL_AS)) |
d62a17ae | 5441 | return 0; |
5442 | ||
a14810f4 PM |
5443 | /* Inherit configuration from peer-group if peer is member. */ |
5444 | if (peer_group_active(peer)) { | |
5445 | peer_flag_inherit(peer, PEER_FLAG_LOCAL_AS); | |
5446 | peer_flag_inherit(peer, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5447 | peer_flag_inherit(peer, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
5448 | PEER_ATTR_INHERIT(peer, peer->group, change_local_as); | |
5449 | } else { | |
5450 | /* Otherwise remove flag and configuration from peer. */ | |
5451 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS); | |
5452 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5453 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
5454 | peer->change_local_as = 0; | |
5455 | } | |
d62a17ae | 5456 | |
a14810f4 | 5457 | /* Check if handling a regular peer. */ |
d62a17ae | 5458 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 5459 | /* Send notification or stop peer depending on state. */ |
d62a17ae | 5460 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
5461 | peer->last_reset = PEER_DOWN_LOCAL_AS_CHANGE; | |
5462 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5463 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5464 | } else | |
5465 | BGP_EVENT_ADD(peer, BGP_Stop); | |
5466 | ||
a14810f4 | 5467 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 5468 | return 0; |
5469 | } | |
5470 | ||
a14810f4 PM |
5471 | /* |
5472 | * Remove flag and configuration from all peer-group members, unless | |
5473 | * they are explicitely overriding peer-group configuration. | |
5474 | */ | |
5475 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5476 | /* Skip peers with overridden configuration. */ | |
5477 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_LOCAL_AS)) | |
5478 | continue; | |
d62a17ae | 5479 | |
a14810f4 PM |
5480 | /* Remove flag and configuration on peer-group member. */ |
5481 | UNSET_FLAG(member->flags, PEER_FLAG_LOCAL_AS); | |
5482 | UNSET_FLAG(member->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5483 | UNSET_FLAG(member->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
5484 | member->change_local_as = 0; | |
5485 | ||
5486 | /* Send notification or stop peer depending on state. */ | |
5487 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) { | |
5488 | member->last_reset = PEER_DOWN_LOCAL_AS_CHANGE; | |
5489 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 5490 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
5491 | } else | |
a14810f4 | 5492 | bgp_session_reset(member); |
d62a17ae | 5493 | } |
a14810f4 | 5494 | |
d62a17ae | 5495 | return 0; |
5496 | } | |
5497 | ||
5498 | /* Set password for authenticating with the peer. */ | |
5499 | int peer_password_set(struct peer *peer, const char *password) | |
5500 | { | |
a14810f4 PM |
5501 | struct peer *member; |
5502 | struct listnode *node, *nnode; | |
d62a17ae | 5503 | int len = password ? strlen(password) : 0; |
5504 | int ret = BGP_SUCCESS; | |
5505 | ||
5506 | if ((len < PEER_PASSWORD_MINLEN) || (len > PEER_PASSWORD_MAXLEN)) | |
5507 | return BGP_ERR_INVALID_VALUE; | |
5508 | ||
a14810f4 PM |
5509 | /* Set flag and configuration on peer. */ |
5510 | peer_flag_set(peer, PEER_FLAG_PASSWORD); | |
5511 | if (peer->password && strcmp(peer->password, password) == 0) | |
d62a17ae | 5512 | return 0; |
a14810f4 | 5513 | XFREE(MTYPE_PEER_PASSWORD, peer->password); |
d62a17ae | 5514 | peer->password = XSTRDUP(MTYPE_PEER_PASSWORD, password); |
5515 | ||
a14810f4 | 5516 | /* Check if handling a regular peer. */ |
d62a17ae | 5517 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 5518 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 5519 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
5520 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5521 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5522 | else | |
5523 | bgp_session_reset(peer); | |
5524 | ||
a14810f4 PM |
5525 | /* |
5526 | * Attempt to install password on socket and skip peer-group | |
5527 | * mechanics. | |
5528 | */ | |
d62a17ae | 5529 | if (BGP_PEER_SU_UNSPEC(peer)) |
5530 | return BGP_SUCCESS; | |
d62a17ae | 5531 | return (bgp_md5_set(peer) >= 0) ? BGP_SUCCESS |
5532 | : BGP_ERR_TCPSIG_FAILED; | |
5533 | } | |
5534 | ||
a14810f4 PM |
5535 | /* |
5536 | * Set flag and configuration on all peer-group members, unless they are | |
5537 | * explicitely overriding peer-group configuration. | |
5538 | */ | |
5539 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5540 | /* Skip peers with overridden configuration. */ | |
5541 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_PASSWORD)) | |
d62a17ae | 5542 | continue; |
5543 | ||
a14810f4 PM |
5544 | /* Skip peers with the same password. */ |
5545 | if (member->password && strcmp(member->password, password) == 0) | |
5546 | continue; | |
d62a17ae | 5547 | |
a14810f4 PM |
5548 | /* Set flag and configuration on peer-group member. */ |
5549 | SET_FLAG(member->flags, PEER_FLAG_PASSWORD); | |
5550 | if (member->password) | |
5551 | XFREE(MTYPE_PEER_PASSWORD, member->password); | |
5552 | member->password = XSTRDUP(MTYPE_PEER_PASSWORD, password); | |
5553 | ||
5554 | /* Send notification or reset peer depending on state. */ | |
5555 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) | |
5556 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 5557 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
5558 | else | |
a14810f4 | 5559 | bgp_session_reset(member); |
d62a17ae | 5560 | |
a14810f4 PM |
5561 | /* Attempt to install password on socket. */ |
5562 | if (!BGP_PEER_SU_UNSPEC(member) && bgp_md5_set(member) < 0) | |
5563 | ret = BGP_ERR_TCPSIG_FAILED; | |
d62a17ae | 5564 | } |
5565 | ||
9e7d9a61 QY |
5566 | /* Set flag and configuration on all peer-group listen ranges */ |
5567 | struct listnode *ln; | |
5568 | struct prefix *lr; | |
5569 | ||
5570 | for (ALL_LIST_ELEMENTS_RO(peer->group->listen_range[AFI_IP], ln, lr)) | |
5571 | bgp_md5_set_prefix(lr, password); | |
5572 | for (ALL_LIST_ELEMENTS_RO(peer->group->listen_range[AFI_IP6], ln, lr)) | |
5573 | bgp_md5_set_prefix(lr, password); | |
5574 | ||
d62a17ae | 5575 | return ret; |
5576 | } | |
5577 | ||
5578 | int peer_password_unset(struct peer *peer) | |
5579 | { | |
a14810f4 PM |
5580 | struct peer *member; |
5581 | struct listnode *node, *nnode; | |
d62a17ae | 5582 | |
a14810f4 | 5583 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_PASSWORD)) |
d62a17ae | 5584 | return 0; |
5585 | ||
a14810f4 PM |
5586 | /* Inherit configuration from peer-group if peer is member. */ |
5587 | if (peer_group_active(peer)) { | |
5588 | peer_flag_inherit(peer, PEER_FLAG_PASSWORD); | |
5589 | PEER_STR_ATTR_INHERIT(peer, peer->group, password, | |
5590 | MTYPE_PEER_PASSWORD); | |
5591 | } else { | |
5592 | /* Otherwise remove flag and configuration from peer. */ | |
5593 | peer_flag_unset(peer, PEER_FLAG_PASSWORD); | |
5594 | XFREE(MTYPE_PEER_PASSWORD, peer->password); | |
5595 | } | |
5596 | ||
5597 | /* Check if handling a regular peer. */ | |
d62a17ae | 5598 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 5599 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 5600 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
5601 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5602 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5603 | else | |
5604 | bgp_session_reset(peer); | |
5605 | ||
a14810f4 | 5606 | /* Attempt to uninstall password on socket. */ |
d62a17ae | 5607 | if (!BGP_PEER_SU_UNSPEC(peer)) |
5608 | bgp_md5_unset(peer); | |
5609 | ||
a14810f4 | 5610 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 5611 | return 0; |
5612 | } | |
5613 | ||
a14810f4 PM |
5614 | /* |
5615 | * Remove flag and configuration from all peer-group members, unless | |
5616 | * they are explicitely overriding peer-group configuration. | |
5617 | */ | |
5618 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5619 | /* Skip peers with overridden configuration. */ | |
5620 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_PASSWORD)) | |
d62a17ae | 5621 | continue; |
5622 | ||
a14810f4 PM |
5623 | /* Remove flag and configuration on peer-group member. */ |
5624 | UNSET_FLAG(member->flags, PEER_FLAG_PASSWORD); | |
5625 | XFREE(MTYPE_PEER_PASSWORD, member->password); | |
5626 | ||
5627 | /* Send notification or reset peer depending on state. */ | |
5628 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) | |
5629 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 5630 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
5631 | else | |
a14810f4 | 5632 | bgp_session_reset(member); |
d62a17ae | 5633 | |
a14810f4 PM |
5634 | /* Attempt to uninstall password on socket. */ |
5635 | if (!BGP_PEER_SU_UNSPEC(member)) | |
5636 | bgp_md5_unset(member); | |
d62a17ae | 5637 | } |
5638 | ||
9e7d9a61 QY |
5639 | /* Set flag and configuration on all peer-group listen ranges */ |
5640 | struct listnode *ln; | |
5641 | struct prefix *lr; | |
5642 | ||
5643 | for (ALL_LIST_ELEMENTS_RO(peer->group->listen_range[AFI_IP], ln, lr)) | |
5644 | bgp_md5_unset_prefix(lr); | |
5645 | for (ALL_LIST_ELEMENTS_RO(peer->group->listen_range[AFI_IP6], ln, lr)) | |
5646 | bgp_md5_unset_prefix(lr); | |
5647 | ||
d62a17ae | 5648 | return 0; |
5649 | } | |
6b0655a2 | 5650 | |
3f9c7369 | 5651 | |
718e3744 | 5652 | /* Set distribute list to the peer. */ |
d62a17ae | 5653 | int peer_distribute_set(struct peer *peer, afi_t afi, safi_t safi, int direct, |
5654 | const char *name) | |
5655 | { | |
70ee29b4 | 5656 | struct peer *member; |
d62a17ae | 5657 | struct bgp_filter *filter; |
d62a17ae | 5658 | struct listnode *node, *nnode; |
5659 | ||
5660 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5661 | return BGP_ERR_INVALID_VALUE; | |
5662 | ||
70ee29b4 | 5663 | /* Set configuration on peer. */ |
d62a17ae | 5664 | filter = &peer->filter[afi][safi]; |
d62a17ae | 5665 | if (filter->plist[direct].name) |
5666 | return BGP_ERR_PEER_FILTER_CONFLICT; | |
d62a17ae | 5667 | if (filter->dlist[direct].name) |
5668 | XFREE(MTYPE_BGP_FILTER_NAME, filter->dlist[direct].name); | |
5669 | filter->dlist[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5670 | filter->dlist[direct].alist = access_list_lookup(afi, name); | |
5671 | ||
70ee29b4 | 5672 | /* Check if handling a regular peer. */ |
d62a17ae | 5673 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
5674 | /* Set override-flag and process peer route updates. */ |
5675 | SET_FLAG(peer->filter_override[afi][safi][direct], | |
5676 | PEER_FT_DISTRIBUTE_LIST); | |
d62a17ae | 5677 | peer_on_policy_change(peer, afi, safi, |
5678 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
5679 | |
5680 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5681 | return 0; |
5682 | } | |
5683 | ||
70ee29b4 PM |
5684 | /* |
5685 | * Set configuration on all peer-group members, un less they are | |
5686 | * explicitely overriding peer-group configuration. | |
5687 | */ | |
5688 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5689 | /* Skip peers with overridden configuration. */ | |
5690 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
5691 | PEER_FT_DISTRIBUTE_LIST)) | |
5692 | continue; | |
d62a17ae | 5693 | |
70ee29b4 PM |
5694 | /* Set configuration on peer-group member. */ |
5695 | filter = &member->filter[afi][safi]; | |
d62a17ae | 5696 | if (filter->dlist[direct].name) |
5697 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5698 | filter->dlist[direct].name); | |
5699 | filter->dlist[direct].name = | |
5700 | XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5701 | filter->dlist[direct].alist = access_list_lookup(afi, name); | |
70ee29b4 PM |
5702 | |
5703 | /* Process peer route updates. */ | |
5704 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 5705 | (direct == FILTER_OUT) ? 1 : 0); |
5706 | } | |
5707 | ||
5708 | return 0; | |
5709 | } | |
5710 | ||
5711 | int peer_distribute_unset(struct peer *peer, afi_t afi, safi_t safi, int direct) | |
5712 | { | |
70ee29b4 | 5713 | struct peer *member; |
d62a17ae | 5714 | struct bgp_filter *filter; |
d62a17ae | 5715 | struct listnode *node, *nnode; |
5716 | ||
5717 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5718 | return BGP_ERR_INVALID_VALUE; | |
5719 | ||
70ee29b4 PM |
5720 | /* Unset override-flag unconditionally. */ |
5721 | UNSET_FLAG(peer->filter_override[afi][safi][direct], | |
5722 | PEER_FT_DISTRIBUTE_LIST); | |
d62a17ae | 5723 | |
70ee29b4 | 5724 | /* Inherit configuration from peer-group if peer is member. */ |
d62a17ae | 5725 | if (peer_group_active(peer)) { |
e7103a96 PM |
5726 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
5727 | filter[afi][safi].dlist[direct].name, | |
5728 | MTYPE_BGP_FILTER_NAME); | |
5729 | PEER_ATTR_INHERIT(peer, peer->group, | |
5730 | filter[afi][safi].dlist[direct].alist); | |
70ee29b4 PM |
5731 | } else { |
5732 | /* Otherwise remove configuration from peer. */ | |
5733 | filter = &peer->filter[afi][safi]; | |
5734 | if (filter->dlist[direct].name) | |
5735 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5736 | filter->dlist[direct].name); | |
5737 | filter->dlist[direct].name = NULL; | |
5738 | filter->dlist[direct].alist = NULL; | |
d62a17ae | 5739 | } |
5740 | ||
70ee29b4 | 5741 | /* Check if handling a regular peer. */ |
d62a17ae | 5742 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 5743 | /* Process peer route updates. */ |
d62a17ae | 5744 | peer_on_policy_change(peer, afi, safi, |
5745 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
5746 | |
5747 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5748 | return 0; |
5749 | } | |
5750 | ||
70ee29b4 PM |
5751 | /* |
5752 | * Remove configuration on all peer-group members, unless they are | |
5753 | * explicitely overriding peer-group configuration. | |
5754 | */ | |
5755 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5756 | /* Skip peers with overridden configuration. */ | |
5757 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
5758 | PEER_FT_DISTRIBUTE_LIST)) | |
5759 | continue; | |
d62a17ae | 5760 | |
70ee29b4 PM |
5761 | /* Remove configuration on peer-group member. */ |
5762 | filter = &member->filter[afi][safi]; | |
d62a17ae | 5763 | if (filter->dlist[direct].name) |
5764 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5765 | filter->dlist[direct].name); | |
5766 | filter->dlist[direct].name = NULL; | |
5767 | filter->dlist[direct].alist = NULL; | |
70ee29b4 PM |
5768 | |
5769 | /* Process peer route updates. */ | |
5770 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 5771 | (direct == FILTER_OUT) ? 1 : 0); |
5772 | } | |
5773 | ||
5774 | return 0; | |
5775 | } | |
5776 | ||
5777 | /* Update distribute list. */ | |
5778 | static void peer_distribute_update(struct access_list *access) | |
5779 | { | |
5780 | afi_t afi; | |
5781 | safi_t safi; | |
5782 | int direct; | |
5783 | struct listnode *mnode, *mnnode; | |
5784 | struct listnode *node, *nnode; | |
5785 | struct bgp *bgp; | |
5786 | struct peer *peer; | |
5787 | struct peer_group *group; | |
5788 | struct bgp_filter *filter; | |
5789 | ||
5790 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
5791 | if (access->name) | |
5792 | update_group_policy_update(bgp, BGP_POLICY_FILTER_LIST, | |
5793 | access->name, 0, 0); | |
5794 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
05c7a1cc QY |
5795 | FOREACH_AFI_SAFI (afi, safi) { |
5796 | filter = &peer->filter[afi][safi]; | |
5797 | ||
5798 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
5799 | direct++) { | |
5800 | if (filter->dlist[direct].name) | |
5801 | filter->dlist[direct] | |
5802 | .alist = access_list_lookup( | |
5803 | afi, | |
d62a17ae | 5804 | filter->dlist[direct] |
05c7a1cc QY |
5805 | .name); |
5806 | else | |
5807 | filter->dlist[direct].alist = | |
5808 | NULL; | |
d62a17ae | 5809 | } |
05c7a1cc | 5810 | } |
d62a17ae | 5811 | } |
5812 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
05c7a1cc QY |
5813 | FOREACH_AFI_SAFI (afi, safi) { |
5814 | filter = &group->conf->filter[afi][safi]; | |
5815 | ||
5816 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
5817 | direct++) { | |
5818 | if (filter->dlist[direct].name) | |
5819 | filter->dlist[direct] | |
5820 | .alist = access_list_lookup( | |
5821 | afi, | |
d62a17ae | 5822 | filter->dlist[direct] |
05c7a1cc QY |
5823 | .name); |
5824 | else | |
5825 | filter->dlist[direct].alist = | |
5826 | NULL; | |
d62a17ae | 5827 | } |
05c7a1cc | 5828 | } |
d62a17ae | 5829 | } |
49e5a4a0 | 5830 | #ifdef ENABLE_BGP_VNC |
d62a17ae | 5831 | vnc_prefix_list_update(bgp); |
5832 | #endif | |
5833 | } | |
5834 | } | |
5835 | ||
5836 | /* Set prefix list to the peer. */ | |
5837 | int peer_prefix_list_set(struct peer *peer, afi_t afi, safi_t safi, int direct, | |
5838 | const char *name) | |
5839 | { | |
70ee29b4 | 5840 | struct peer *member; |
d62a17ae | 5841 | struct bgp_filter *filter; |
d62a17ae | 5842 | struct listnode *node, *nnode; |
5843 | ||
5844 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5845 | return BGP_ERR_INVALID_VALUE; | |
5846 | ||
70ee29b4 | 5847 | /* Set configuration on peer. */ |
d62a17ae | 5848 | filter = &peer->filter[afi][safi]; |
d62a17ae | 5849 | if (filter->dlist[direct].name) |
5850 | return BGP_ERR_PEER_FILTER_CONFLICT; | |
d62a17ae | 5851 | if (filter->plist[direct].name) |
5852 | XFREE(MTYPE_BGP_FILTER_NAME, filter->plist[direct].name); | |
5853 | filter->plist[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5854 | filter->plist[direct].plist = prefix_list_lookup(afi, name); | |
5855 | ||
70ee29b4 | 5856 | /* Check if handling a regular peer. */ |
d62a17ae | 5857 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
5858 | /* Set override-flag and process peer route updates. */ |
5859 | SET_FLAG(peer->filter_override[afi][safi][direct], | |
5860 | PEER_FT_PREFIX_LIST); | |
d62a17ae | 5861 | peer_on_policy_change(peer, afi, safi, |
5862 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
5863 | |
5864 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5865 | return 0; |
5866 | } | |
5867 | ||
70ee29b4 PM |
5868 | /* |
5869 | * Set configuration on all peer-group members, unless they are | |
5870 | * explicitely overriding peer-group configuration. | |
5871 | */ | |
5872 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5873 | /* Skip peers with overridden configuration. */ | |
5874 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
5875 | PEER_FT_PREFIX_LIST)) | |
5876 | continue; | |
d62a17ae | 5877 | |
70ee29b4 PM |
5878 | /* Set configuration on peer-group member. */ |
5879 | filter = &member->filter[afi][safi]; | |
d62a17ae | 5880 | if (filter->plist[direct].name) |
5881 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5882 | filter->plist[direct].name); | |
5883 | filter->plist[direct].name = | |
5884 | XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5885 | filter->plist[direct].plist = prefix_list_lookup(afi, name); | |
70ee29b4 PM |
5886 | |
5887 | /* Process peer route updates. */ | |
5888 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 5889 | (direct == FILTER_OUT) ? 1 : 0); |
5890 | } | |
70ee29b4 | 5891 | |
d62a17ae | 5892 | return 0; |
5893 | } | |
5894 | ||
5895 | int peer_prefix_list_unset(struct peer *peer, afi_t afi, safi_t safi, | |
5896 | int direct) | |
5897 | { | |
70ee29b4 | 5898 | struct peer *member; |
d62a17ae | 5899 | struct bgp_filter *filter; |
d62a17ae | 5900 | struct listnode *node, *nnode; |
5901 | ||
5902 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5903 | return BGP_ERR_INVALID_VALUE; | |
5904 | ||
70ee29b4 PM |
5905 | /* Unset override-flag unconditionally. */ |
5906 | UNSET_FLAG(peer->filter_override[afi][safi][direct], | |
5907 | PEER_FT_PREFIX_LIST); | |
d62a17ae | 5908 | |
70ee29b4 | 5909 | /* Inherit configuration from peer-group if peer is member. */ |
d62a17ae | 5910 | if (peer_group_active(peer)) { |
e7103a96 PM |
5911 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
5912 | filter[afi][safi].plist[direct].name, | |
5913 | MTYPE_BGP_FILTER_NAME); | |
5914 | PEER_ATTR_INHERIT(peer, peer->group, | |
5915 | filter[afi][safi].plist[direct].plist); | |
70ee29b4 PM |
5916 | } else { |
5917 | /* Otherwise remove configuration from peer. */ | |
5918 | filter = &peer->filter[afi][safi]; | |
5919 | if (filter->plist[direct].name) | |
5920 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5921 | filter->plist[direct].name); | |
5922 | filter->plist[direct].name = NULL; | |
5923 | filter->plist[direct].plist = NULL; | |
d62a17ae | 5924 | } |
5925 | ||
70ee29b4 | 5926 | /* Check if handling a regular peer. */ |
d62a17ae | 5927 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 5928 | /* Process peer route updates. */ |
d62a17ae | 5929 | peer_on_policy_change(peer, afi, safi, |
5930 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
5931 | |
5932 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5933 | return 0; |
5934 | } | |
5935 | ||
70ee29b4 PM |
5936 | /* |
5937 | * Remove configuration on all peer-group members, unless they are | |
5938 | * explicitely overriding peer-group configuration. | |
5939 | */ | |
5940 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5941 | /* Skip peers with overridden configuration. */ | |
5942 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
5943 | PEER_FT_PREFIX_LIST)) | |
5944 | continue; | |
d62a17ae | 5945 | |
70ee29b4 PM |
5946 | /* Remove configuration on peer-group member. */ |
5947 | filter = &member->filter[afi][safi]; | |
d62a17ae | 5948 | if (filter->plist[direct].name) |
5949 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5950 | filter->plist[direct].name); | |
5951 | filter->plist[direct].name = NULL; | |
5952 | filter->plist[direct].plist = NULL; | |
70ee29b4 PM |
5953 | |
5954 | /* Process peer route updates. */ | |
5955 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 5956 | (direct == FILTER_OUT) ? 1 : 0); |
5957 | } | |
5958 | ||
5959 | return 0; | |
5960 | } | |
5961 | ||
5962 | /* Update prefix-list list. */ | |
5963 | static void peer_prefix_list_update(struct prefix_list *plist) | |
5964 | { | |
5965 | struct listnode *mnode, *mnnode; | |
5966 | struct listnode *node, *nnode; | |
5967 | struct bgp *bgp; | |
5968 | struct peer *peer; | |
5969 | struct peer_group *group; | |
5970 | struct bgp_filter *filter; | |
5971 | afi_t afi; | |
5972 | safi_t safi; | |
5973 | int direct; | |
5974 | ||
5975 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
5976 | ||
5977 | /* | |
5978 | * Update the prefix-list on update groups. | |
5979 | */ | |
5980 | update_group_policy_update( | |
5981 | bgp, BGP_POLICY_PREFIX_LIST, | |
5982 | plist ? prefix_list_name(plist) : NULL, 0, 0); | |
5983 | ||
5984 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
05c7a1cc QY |
5985 | FOREACH_AFI_SAFI (afi, safi) { |
5986 | filter = &peer->filter[afi][safi]; | |
5987 | ||
5988 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
5989 | direct++) { | |
5990 | if (filter->plist[direct].name) | |
5991 | filter->plist[direct] | |
5992 | .plist = prefix_list_lookup( | |
5993 | afi, | |
d62a17ae | 5994 | filter->plist[direct] |
05c7a1cc QY |
5995 | .name); |
5996 | else | |
5997 | filter->plist[direct].plist = | |
5998 | NULL; | |
d62a17ae | 5999 | } |
05c7a1cc | 6000 | } |
d62a17ae | 6001 | } |
6002 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
05c7a1cc QY |
6003 | FOREACH_AFI_SAFI (afi, safi) { |
6004 | filter = &group->conf->filter[afi][safi]; | |
6005 | ||
6006 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
6007 | direct++) { | |
6008 | if (filter->plist[direct].name) | |
6009 | filter->plist[direct] | |
6010 | .plist = prefix_list_lookup( | |
6011 | afi, | |
d62a17ae | 6012 | filter->plist[direct] |
05c7a1cc QY |
6013 | .name); |
6014 | else | |
6015 | filter->plist[direct].plist = | |
6016 | NULL; | |
d62a17ae | 6017 | } |
05c7a1cc | 6018 | } |
d62a17ae | 6019 | } |
6020 | } | |
6021 | } | |
6022 | ||
6023 | int peer_aslist_set(struct peer *peer, afi_t afi, safi_t safi, int direct, | |
6024 | const char *name) | |
6025 | { | |
70ee29b4 | 6026 | struct peer *member; |
d62a17ae | 6027 | struct bgp_filter *filter; |
d62a17ae | 6028 | struct listnode *node, *nnode; |
6029 | ||
6030 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
6031 | return BGP_ERR_INVALID_VALUE; | |
6032 | ||
70ee29b4 | 6033 | /* Set configuration on peer. */ |
d62a17ae | 6034 | filter = &peer->filter[afi][safi]; |
d62a17ae | 6035 | if (filter->aslist[direct].name) |
6036 | XFREE(MTYPE_BGP_FILTER_NAME, filter->aslist[direct].name); | |
6037 | filter->aslist[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
6038 | filter->aslist[direct].aslist = as_list_lookup(name); | |
6039 | ||
70ee29b4 | 6040 | /* Check if handling a regular peer. */ |
d62a17ae | 6041 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
6042 | /* Set override-flag and process peer route updates. */ |
6043 | SET_FLAG(peer->filter_override[afi][safi][direct], | |
6044 | PEER_FT_FILTER_LIST); | |
d62a17ae | 6045 | peer_on_policy_change(peer, afi, safi, |
6046 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
6047 | |
6048 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6049 | return 0; |
6050 | } | |
6051 | ||
70ee29b4 PM |
6052 | /* |
6053 | * Set configuration on all peer-group members, unless they are | |
6054 | * explicitely overriding peer-group configuration. | |
6055 | */ | |
6056 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6057 | /* Skip peers with overridden configuration. */ | |
6058 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
6059 | PEER_FT_FILTER_LIST)) | |
6060 | continue; | |
d62a17ae | 6061 | |
70ee29b4 PM |
6062 | /* Set configuration on peer-group member. */ |
6063 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6064 | if (filter->aslist[direct].name) |
6065 | XFREE(MTYPE_BGP_FILTER_NAME, | |
6066 | filter->aslist[direct].name); | |
6067 | filter->aslist[direct].name = | |
6068 | XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
6069 | filter->aslist[direct].aslist = as_list_lookup(name); | |
70ee29b4 PM |
6070 | |
6071 | /* Process peer route updates. */ | |
6072 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 6073 | (direct == FILTER_OUT) ? 1 : 0); |
6074 | } | |
70ee29b4 | 6075 | |
d62a17ae | 6076 | return 0; |
6077 | } | |
6078 | ||
6079 | int peer_aslist_unset(struct peer *peer, afi_t afi, safi_t safi, int direct) | |
6080 | { | |
70ee29b4 | 6081 | struct peer *member; |
d62a17ae | 6082 | struct bgp_filter *filter; |
d62a17ae | 6083 | struct listnode *node, *nnode; |
6084 | ||
6085 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
6086 | return BGP_ERR_INVALID_VALUE; | |
6087 | ||
70ee29b4 PM |
6088 | /* Unset override-flag unconditionally. */ |
6089 | UNSET_FLAG(peer->filter_override[afi][safi][direct], | |
6090 | PEER_FT_FILTER_LIST); | |
d62a17ae | 6091 | |
70ee29b4 | 6092 | /* Inherit configuration from peer-group if peer is member. */ |
d62a17ae | 6093 | if (peer_group_active(peer)) { |
e7103a96 PM |
6094 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
6095 | filter[afi][safi].aslist[direct].name, | |
6096 | MTYPE_BGP_FILTER_NAME); | |
6097 | PEER_ATTR_INHERIT(peer, peer->group, | |
70ee29b4 PM |
6098 | filter[afi][safi].aslist[direct].aslist); |
6099 | } else { | |
6100 | /* Otherwise remove configuration from peer. */ | |
6101 | filter = &peer->filter[afi][safi]; | |
6102 | if (filter->aslist[direct].name) | |
6103 | XFREE(MTYPE_BGP_FILTER_NAME, | |
6104 | filter->aslist[direct].name); | |
6105 | filter->aslist[direct].name = NULL; | |
6106 | filter->aslist[direct].aslist = NULL; | |
d62a17ae | 6107 | } |
6108 | ||
70ee29b4 | 6109 | /* Check if handling a regular peer. */ |
d62a17ae | 6110 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 6111 | /* Process peer route updates. */ |
d62a17ae | 6112 | peer_on_policy_change(peer, afi, safi, |
6113 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
6114 | |
6115 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6116 | return 0; |
6117 | } | |
6118 | ||
70ee29b4 PM |
6119 | /* |
6120 | * Remove configuration on all peer-group members, unless they are | |
6121 | * explicitely overriding peer-group configuration. | |
6122 | */ | |
6123 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6124 | /* Skip peers with overridden configuration. */ | |
6125 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
6126 | PEER_FT_FILTER_LIST)) | |
6127 | continue; | |
d62a17ae | 6128 | |
70ee29b4 PM |
6129 | /* Remove configuration on peer-group member. */ |
6130 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6131 | if (filter->aslist[direct].name) |
6132 | XFREE(MTYPE_BGP_FILTER_NAME, | |
6133 | filter->aslist[direct].name); | |
6134 | filter->aslist[direct].name = NULL; | |
6135 | filter->aslist[direct].aslist = NULL; | |
70ee29b4 PM |
6136 | |
6137 | /* Process peer route updates. */ | |
6138 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 6139 | (direct == FILTER_OUT) ? 1 : 0); |
6140 | } | |
6141 | ||
6142 | return 0; | |
6143 | } | |
6144 | ||
6145 | static void peer_aslist_update(const char *aslist_name) | |
6146 | { | |
6147 | afi_t afi; | |
6148 | safi_t safi; | |
6149 | int direct; | |
6150 | struct listnode *mnode, *mnnode; | |
6151 | struct listnode *node, *nnode; | |
6152 | struct bgp *bgp; | |
6153 | struct peer *peer; | |
6154 | struct peer_group *group; | |
6155 | struct bgp_filter *filter; | |
6156 | ||
6157 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
6158 | update_group_policy_update(bgp, BGP_POLICY_FILTER_LIST, | |
6159 | aslist_name, 0, 0); | |
6160 | ||
6161 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
05c7a1cc QY |
6162 | FOREACH_AFI_SAFI (afi, safi) { |
6163 | filter = &peer->filter[afi][safi]; | |
6164 | ||
6165 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
6166 | direct++) { | |
6167 | if (filter->aslist[direct].name) | |
6168 | filter->aslist[direct] | |
6169 | .aslist = as_list_lookup( | |
d62a17ae | 6170 | filter->aslist[direct] |
05c7a1cc QY |
6171 | .name); |
6172 | else | |
6173 | filter->aslist[direct].aslist = | |
6174 | NULL; | |
d62a17ae | 6175 | } |
05c7a1cc | 6176 | } |
d62a17ae | 6177 | } |
6178 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
05c7a1cc QY |
6179 | FOREACH_AFI_SAFI (afi, safi) { |
6180 | filter = &group->conf->filter[afi][safi]; | |
6181 | ||
6182 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
6183 | direct++) { | |
6184 | if (filter->aslist[direct].name) | |
6185 | filter->aslist[direct] | |
6186 | .aslist = as_list_lookup( | |
d62a17ae | 6187 | filter->aslist[direct] |
05c7a1cc QY |
6188 | .name); |
6189 | else | |
6190 | filter->aslist[direct].aslist = | |
6191 | NULL; | |
d62a17ae | 6192 | } |
05c7a1cc | 6193 | } |
d62a17ae | 6194 | } |
6195 | } | |
6196 | } | |
6197 | ||
6198 | static void peer_aslist_add(char *aslist_name) | |
6199 | { | |
6200 | peer_aslist_update(aslist_name); | |
c4efd0f4 | 6201 | route_map_notify_dependencies(aslist_name, RMAP_EVENT_ASLIST_ADDED); |
d62a17ae | 6202 | } |
6203 | ||
6204 | static void peer_aslist_del(const char *aslist_name) | |
6205 | { | |
6206 | peer_aslist_update(aslist_name); | |
6207 | route_map_notify_dependencies(aslist_name, RMAP_EVENT_ASLIST_DELETED); | |
6208 | } | |
6209 | ||
6210 | ||
6211 | int peer_route_map_set(struct peer *peer, afi_t afi, safi_t safi, int direct, | |
1de27621 | 6212 | const char *name, struct route_map *route_map) |
d62a17ae | 6213 | { |
70ee29b4 | 6214 | struct peer *member; |
d62a17ae | 6215 | struct bgp_filter *filter; |
d62a17ae | 6216 | struct listnode *node, *nnode; |
6217 | ||
6218 | if (direct != RMAP_IN && direct != RMAP_OUT) | |
6219 | return BGP_ERR_INVALID_VALUE; | |
6220 | ||
70ee29b4 | 6221 | /* Set configuration on peer. */ |
d62a17ae | 6222 | filter = &peer->filter[afi][safi]; |
6c3247bd NT |
6223 | if (filter->map[direct].name) { |
6224 | /* If the neighbor is configured with the same route-map | |
6225 | * again then, ignore the duplicate configuration. | |
6226 | */ | |
6227 | if (strcmp(filter->map[direct].name, name) == 0) | |
6228 | return 0; | |
6229 | ||
d62a17ae | 6230 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); |
6c3247bd | 6231 | } |
b4897fa5 | 6232 | route_map_counter_decrement(filter->map[direct].map); |
d62a17ae | 6233 | filter->map[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); |
1de27621 | 6234 | filter->map[direct].map = route_map; |
b4897fa5 | 6235 | route_map_counter_increment(route_map); |
d62a17ae | 6236 | |
70ee29b4 | 6237 | /* Check if handling a regular peer. */ |
d62a17ae | 6238 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
6239 | /* Set override-flag and process peer route updates. */ |
6240 | SET_FLAG(peer->filter_override[afi][safi][direct], | |
6241 | PEER_FT_ROUTE_MAP); | |
d62a17ae | 6242 | peer_on_policy_change(peer, afi, safi, |
6243 | (direct == RMAP_OUT) ? 1 : 0); | |
70ee29b4 PM |
6244 | |
6245 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6246 | return 0; |
6247 | } | |
6248 | ||
70ee29b4 PM |
6249 | /* |
6250 | * Set configuration on all peer-group members, unless they are | |
6251 | * explicitely overriding peer-group configuration. | |
6252 | */ | |
6253 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6254 | /* Skip peers with overridden configuration. */ | |
6255 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
6256 | PEER_FT_ROUTE_MAP)) | |
6257 | continue; | |
d62a17ae | 6258 | |
70ee29b4 PM |
6259 | /* Set configuration on peer-group member. */ |
6260 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6261 | if (filter->map[direct].name) |
6262 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); | |
b4897fa5 | 6263 | route_map_counter_decrement(filter->map[direct].map); |
d62a17ae | 6264 | filter->map[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); |
1de27621 | 6265 | filter->map[direct].map = route_map; |
b4897fa5 | 6266 | route_map_counter_increment(route_map); |
70ee29b4 PM |
6267 | |
6268 | /* Process peer route updates. */ | |
6269 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 6270 | (direct == RMAP_OUT) ? 1 : 0); |
6271 | } | |
6272 | return 0; | |
6273 | } | |
6274 | ||
6275 | /* Unset route-map from the peer. */ | |
6276 | int peer_route_map_unset(struct peer *peer, afi_t afi, safi_t safi, int direct) | |
6277 | { | |
70ee29b4 | 6278 | struct peer *member; |
d62a17ae | 6279 | struct bgp_filter *filter; |
d62a17ae | 6280 | struct listnode *node, *nnode; |
6281 | ||
6282 | if (direct != RMAP_IN && direct != RMAP_OUT) | |
6283 | return BGP_ERR_INVALID_VALUE; | |
6284 | ||
70ee29b4 PM |
6285 | /* Unset override-flag unconditionally. */ |
6286 | UNSET_FLAG(peer->filter_override[afi][safi][direct], PEER_FT_ROUTE_MAP); | |
d62a17ae | 6287 | |
70ee29b4 | 6288 | /* Inherit configuration from peer-group if peer is member. */ |
d62a17ae | 6289 | if (peer_group_active(peer)) { |
e7103a96 PM |
6290 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
6291 | filter[afi][safi].map[direct].name, | |
6292 | MTYPE_BGP_FILTER_NAME); | |
6293 | PEER_ATTR_INHERIT(peer, peer->group, | |
6294 | filter[afi][safi].map[direct].map); | |
70ee29b4 PM |
6295 | } else { |
6296 | /* Otherwise remove configuration from peer. */ | |
6297 | filter = &peer->filter[afi][safi]; | |
6298 | if (filter->map[direct].name) | |
6299 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); | |
b4897fa5 | 6300 | route_map_counter_decrement(filter->map[direct].map); |
70ee29b4 PM |
6301 | filter->map[direct].name = NULL; |
6302 | filter->map[direct].map = NULL; | |
d62a17ae | 6303 | } |
6304 | ||
70ee29b4 | 6305 | /* Check if handling a regular peer. */ |
d62a17ae | 6306 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 6307 | /* Process peer route updates. */ |
d62a17ae | 6308 | peer_on_policy_change(peer, afi, safi, |
6309 | (direct == RMAP_OUT) ? 1 : 0); | |
70ee29b4 PM |
6310 | |
6311 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6312 | return 0; |
6313 | } | |
6314 | ||
70ee29b4 PM |
6315 | /* |
6316 | * Remove configuration on all peer-group members, unless they are | |
6317 | * explicitely overriding peer-group configuration. | |
6318 | */ | |
6319 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6320 | /* Skip peers with overridden configuration. */ | |
6321 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
6322 | PEER_FT_ROUTE_MAP)) | |
6323 | continue; | |
d62a17ae | 6324 | |
70ee29b4 PM |
6325 | /* Remove configuration on peer-group member. */ |
6326 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6327 | if (filter->map[direct].name) |
6328 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); | |
b4897fa5 | 6329 | route_map_counter_decrement(filter->map[direct].map); |
d62a17ae | 6330 | filter->map[direct].name = NULL; |
6331 | filter->map[direct].map = NULL; | |
70ee29b4 PM |
6332 | |
6333 | /* Process peer route updates. */ | |
6334 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 6335 | (direct == RMAP_OUT) ? 1 : 0); |
6336 | } | |
70ee29b4 | 6337 | |
d62a17ae | 6338 | return 0; |
6339 | } | |
6340 | ||
6341 | /* Set unsuppress-map to the peer. */ | |
6342 | int peer_unsuppress_map_set(struct peer *peer, afi_t afi, safi_t safi, | |
1de27621 | 6343 | const char *name, struct route_map *route_map) |
d62a17ae | 6344 | { |
70ee29b4 | 6345 | struct peer *member; |
d62a17ae | 6346 | struct bgp_filter *filter; |
d62a17ae | 6347 | struct listnode *node, *nnode; |
6348 | ||
70ee29b4 | 6349 | /* Set configuration on peer. */ |
d62a17ae | 6350 | filter = &peer->filter[afi][safi]; |
d62a17ae | 6351 | if (filter->usmap.name) |
6352 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
b4897fa5 | 6353 | route_map_counter_decrement(filter->usmap.map); |
d62a17ae | 6354 | filter->usmap.name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); |
1de27621 | 6355 | filter->usmap.map = route_map; |
b4897fa5 | 6356 | route_map_counter_increment(route_map); |
d62a17ae | 6357 | |
70ee29b4 | 6358 | /* Check if handling a regular peer. */ |
d62a17ae | 6359 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
6360 | /* Set override-flag and process peer route updates. */ |
6361 | SET_FLAG(peer->filter_override[afi][safi][0], | |
6362 | PEER_FT_UNSUPPRESS_MAP); | |
d62a17ae | 6363 | peer_on_policy_change(peer, afi, safi, 1); |
70ee29b4 PM |
6364 | |
6365 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6366 | return 0; |
6367 | } | |
6368 | ||
70ee29b4 PM |
6369 | /* |
6370 | * Set configuration on all peer-group members, unless they are | |
6371 | * explicitely overriding peer-group configuration. | |
6372 | */ | |
6373 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6374 | /* Skip peers with overridden configuration. */ | |
246bb5f0 | 6375 | if (CHECK_FLAG(member->filter_override[afi][safi][0], |
70ee29b4 PM |
6376 | PEER_FT_UNSUPPRESS_MAP)) |
6377 | continue; | |
d62a17ae | 6378 | |
70ee29b4 PM |
6379 | /* Set configuration on peer-group member. */ |
6380 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6381 | if (filter->usmap.name) |
6382 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
b4897fa5 | 6383 | route_map_counter_decrement(filter->usmap.map); |
d62a17ae | 6384 | filter->usmap.name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); |
1de27621 | 6385 | filter->usmap.map = route_map; |
b4897fa5 | 6386 | route_map_counter_increment(route_map); |
70ee29b4 PM |
6387 | |
6388 | /* Process peer route updates. */ | |
6389 | peer_on_policy_change(member, afi, safi, 1); | |
d62a17ae | 6390 | } |
70ee29b4 | 6391 | |
d62a17ae | 6392 | return 0; |
6393 | } | |
6394 | ||
6395 | /* Unset route-map from the peer. */ | |
6396 | int peer_unsuppress_map_unset(struct peer *peer, afi_t afi, safi_t safi) | |
718e3744 | 6397 | { |
70ee29b4 | 6398 | struct peer *member; |
d62a17ae | 6399 | struct bgp_filter *filter; |
d62a17ae | 6400 | struct listnode *node, *nnode; |
6401 | ||
70ee29b4 PM |
6402 | /* Unset override-flag unconditionally. */ |
6403 | UNSET_FLAG(peer->filter_override[afi][safi][0], PEER_FT_UNSUPPRESS_MAP); | |
718e3744 | 6404 | |
70ee29b4 PM |
6405 | /* Inherit configuration from peer-group if peer is member. */ |
6406 | if (peer_group_active(peer)) { | |
e7103a96 PM |
6407 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
6408 | filter[afi][safi].usmap.name, | |
6409 | MTYPE_BGP_FILTER_NAME); | |
6410 | PEER_ATTR_INHERIT(peer, peer->group, | |
6411 | filter[afi][safi].usmap.map); | |
70ee29b4 PM |
6412 | } else { |
6413 | /* Otherwise remove configuration from peer. */ | |
6414 | filter = &peer->filter[afi][safi]; | |
6415 | if (filter->usmap.name) | |
6416 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
b4897fa5 | 6417 | route_map_counter_decrement(filter->usmap.map); |
70ee29b4 PM |
6418 | filter->usmap.name = NULL; |
6419 | filter->usmap.map = NULL; | |
6420 | } | |
718e3744 | 6421 | |
70ee29b4 | 6422 | /* Check if handling a regular peer. */ |
d62a17ae | 6423 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 6424 | /* Process peer route updates. */ |
d62a17ae | 6425 | peer_on_policy_change(peer, afi, safi, 1); |
70ee29b4 PM |
6426 | |
6427 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6428 | return 0; |
6429 | } | |
718e3744 | 6430 | |
70ee29b4 PM |
6431 | /* |
6432 | * Remove configuration on all peer-group members, unless they are | |
6433 | * explicitely overriding peer-group configuration. | |
6434 | */ | |
6435 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6436 | /* Skip peers with overridden configuration. */ | |
6437 | if (CHECK_FLAG(member->filter_override[afi][safi][0], | |
6438 | PEER_FT_UNSUPPRESS_MAP)) | |
6439 | continue; | |
718e3744 | 6440 | |
70ee29b4 PM |
6441 | /* Remove configuration on peer-group member. */ |
6442 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6443 | if (filter->usmap.name) |
6444 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
b4897fa5 | 6445 | route_map_counter_decrement(filter->usmap.map); |
d62a17ae | 6446 | filter->usmap.name = NULL; |
6447 | filter->usmap.map = NULL; | |
70ee29b4 PM |
6448 | |
6449 | /* Process peer route updates. */ | |
6450 | peer_on_policy_change(member, afi, safi, 1); | |
d62a17ae | 6451 | } |
70ee29b4 | 6452 | |
d62a17ae | 6453 | return 0; |
6454 | } | |
718e3744 | 6455 | |
d62a17ae | 6456 | int peer_maximum_prefix_set(struct peer *peer, afi_t afi, safi_t safi, |
d7c0a89a QY |
6457 | uint32_t max, uint8_t threshold, int warning, |
6458 | uint16_t restart) | |
d62a17ae | 6459 | { |
598ce6bd | 6460 | struct peer *member; |
d62a17ae | 6461 | struct listnode *node, *nnode; |
6462 | ||
598ce6bd PM |
6463 | /* Set flags and configuration on peer. */ |
6464 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_MAX_PREFIX); | |
d62a17ae | 6465 | if (warning) |
598ce6bd | 6466 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_MAX_PREFIX_WARNING); |
d62a17ae | 6467 | else |
598ce6bd PM |
6468 | peer_af_flag_unset(peer, afi, safi, |
6469 | PEER_FLAG_MAX_PREFIX_WARNING); | |
6470 | ||
04e1c5bb QY |
6471 | peer->pmax[afi][safi] = max; |
6472 | peer->pmax_threshold[afi][safi] = threshold; | |
6473 | peer->pmax_restart[afi][safi] = restart; | |
d62a17ae | 6474 | |
598ce6bd PM |
6475 | /* Check if handling a regular peer. */ |
6476 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
6477 | /* Re-check if peer violates maximum-prefix. */ | |
d62a17ae | 6478 | if ((peer->status == Established) && (peer->afc[afi][safi])) |
6479 | bgp_maximum_prefix_overflow(peer, afi, safi, 1); | |
04e1c5bb | 6480 | |
598ce6bd PM |
6481 | /* Skip peer-group mechanics for regular peers. */ |
6482 | return 0; | |
6483 | } | |
04e1c5bb | 6484 | |
598ce6bd PM |
6485 | /* |
6486 | * Set flags and configuration on all peer-group members, unless they | |
6487 | * are explicitely overriding peer-group configuration. | |
6488 | */ | |
6489 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6490 | /* Skip peers with overridden configuration. */ | |
6491 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
6492 | PEER_FLAG_MAX_PREFIX)) | |
6493 | continue; | |
04e1c5bb | 6494 | |
598ce6bd PM |
6495 | /* Set flag and configuration on peer-group member. */ |
6496 | member->pmax[afi][safi] = max; | |
6497 | member->pmax_threshold[afi][safi] = threshold; | |
6498 | member->pmax_restart[afi][safi] = restart; | |
04e1c5bb | 6499 | if (warning) |
598ce6bd | 6500 | SET_FLAG(member->af_flags[afi][safi], |
04e1c5bb QY |
6501 | PEER_FLAG_MAX_PREFIX_WARNING); |
6502 | else | |
598ce6bd | 6503 | UNSET_FLAG(member->af_flags[afi][safi], |
04e1c5bb | 6504 | PEER_FLAG_MAX_PREFIX_WARNING); |
598ce6bd PM |
6505 | |
6506 | /* Re-check if peer violates maximum-prefix. */ | |
6507 | if ((member->status == Established) && (member->afc[afi][safi])) | |
6508 | bgp_maximum_prefix_overflow(member, afi, safi, 1); | |
d62a17ae | 6509 | } |
718e3744 | 6510 | |
d62a17ae | 6511 | return 0; |
6512 | } | |
718e3744 | 6513 | |
d62a17ae | 6514 | int peer_maximum_prefix_unset(struct peer *peer, afi_t afi, safi_t safi) |
6515 | { | |
598ce6bd PM |
6516 | /* Inherit configuration from peer-group if peer is member. */ |
6517 | if (peer_group_active(peer)) { | |
6518 | peer_af_flag_inherit(peer, afi, safi, PEER_FLAG_MAX_PREFIX); | |
6519 | peer_af_flag_inherit(peer, afi, safi, | |
6520 | PEER_FLAG_MAX_PREFIX_WARNING); | |
e7103a96 PM |
6521 | PEER_ATTR_INHERIT(peer, peer->group, pmax[afi][safi]); |
6522 | PEER_ATTR_INHERIT(peer, peer->group, pmax_threshold[afi][safi]); | |
6523 | PEER_ATTR_INHERIT(peer, peer->group, pmax_restart[afi][safi]); | |
04e1c5bb | 6524 | |
d62a17ae | 6525 | return 0; |
04e1c5bb | 6526 | } |
d62a17ae | 6527 | |
598ce6bd PM |
6528 | /* Remove flags and configuration from peer. */ |
6529 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_MAX_PREFIX); | |
6530 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_MAX_PREFIX_WARNING); | |
6531 | peer->pmax[afi][safi] = 0; | |
6532 | peer->pmax_threshold[afi][safi] = 0; | |
6533 | peer->pmax_restart[afi][safi] = 0; | |
6534 | ||
04e1c5bb | 6535 | /* |
598ce6bd PM |
6536 | * Remove flags and configuration from all peer-group members, unless |
6537 | * they are explicitely overriding peer-group configuration. | |
04e1c5bb | 6538 | */ |
6282637d RW |
6539 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
6540 | struct peer *member; | |
6541 | struct listnode *node; | |
598ce6bd | 6542 | |
6282637d RW |
6543 | for (ALL_LIST_ELEMENTS_RO(peer->group->peer, node, member)) { |
6544 | /* Skip peers with overridden configuration. */ | |
6545 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
6546 | PEER_FLAG_MAX_PREFIX)) | |
6547 | continue; | |
6548 | ||
6549 | /* Remove flag and configuration on peer-group member. | |
6550 | */ | |
6551 | UNSET_FLAG(member->af_flags[afi][safi], | |
6552 | PEER_FLAG_MAX_PREFIX); | |
6553 | UNSET_FLAG(member->af_flags[afi][safi], | |
6554 | PEER_FLAG_MAX_PREFIX_WARNING); | |
6555 | member->pmax[afi][safi] = 0; | |
6556 | member->pmax_threshold[afi][safi] = 0; | |
6557 | member->pmax_restart[afi][safi] = 0; | |
6558 | } | |
d62a17ae | 6559 | } |
598ce6bd | 6560 | |
d62a17ae | 6561 | return 0; |
718e3744 | 6562 | } |
6563 | ||
d62a17ae | 6564 | int is_ebgp_multihop_configured(struct peer *peer) |
718e3744 | 6565 | { |
d62a17ae | 6566 | struct peer_group *group; |
6567 | struct listnode *node, *nnode; | |
6568 | struct peer *peer1; | |
718e3744 | 6569 | |
d62a17ae | 6570 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
6571 | group = peer->group; | |
6572 | if ((peer_sort(peer) != BGP_PEER_IBGP) | |
c8d6f0d6 | 6573 | && (group->conf->ttl != BGP_DEFAULT_TTL)) |
d62a17ae | 6574 | return 1; |
718e3744 | 6575 | |
d62a17ae | 6576 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer1)) { |
6577 | if ((peer_sort(peer1) != BGP_PEER_IBGP) | |
c8d6f0d6 | 6578 | && (peer1->ttl != BGP_DEFAULT_TTL)) |
d62a17ae | 6579 | return 1; |
6580 | } | |
6581 | } else { | |
c8d6f0d6 DA |
6582 | if ((peer_sort(peer) != BGP_PEER_IBGP) |
6583 | && (peer->ttl != BGP_DEFAULT_TTL)) | |
d62a17ae | 6584 | return 1; |
6585 | } | |
6586 | return 0; | |
6587 | } | |
718e3744 | 6588 | |
d62a17ae | 6589 | /* Set # of hops between us and BGP peer. */ |
6590 | int peer_ttl_security_hops_set(struct peer *peer, int gtsm_hops) | |
6591 | { | |
6592 | struct peer_group *group; | |
6593 | struct listnode *node, *nnode; | |
6594 | int ret; | |
6595 | ||
6596 | zlog_debug("peer_ttl_security_hops_set: set gtsm_hops to %d for %s", | |
6597 | gtsm_hops, peer->host); | |
6598 | ||
6599 | /* We cannot configure ttl-security hops when ebgp-multihop is already | |
6600 | set. For non peer-groups, the check is simple. For peer-groups, | |
6601 | it's | |
6602 | slightly messy, because we need to check both the peer-group | |
6603 | structure | |
6604 | and all peer-group members for any trace of ebgp-multihop | |
6605 | configuration | |
6606 | before actually applying the ttl-security rules. Cisco really made a | |
6607 | mess of this configuration parameter, and OpenBGPD got it right. | |
6608 | */ | |
6609 | ||
e2521429 DA |
6610 | if ((peer->gtsm_hops == BGP_GTSM_HOPS_DISABLED) |
6611 | && (peer->sort != BGP_PEER_IBGP)) { | |
d62a17ae | 6612 | if (is_ebgp_multihop_configured(peer)) |
6613 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
6614 | ||
6615 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
6616 | peer->gtsm_hops = gtsm_hops; | |
6617 | ||
6618 | /* Calling ebgp multihop also resets the session. | |
6619 | * On restart, NHT will get setup correctly as will the | |
6620 | * min & max ttls on the socket. The return value is | |
6621 | * irrelevant. | |
6622 | */ | |
6623 | ret = peer_ebgp_multihop_set(peer, MAXTTL); | |
6624 | ||
6625 | if (ret != 0) | |
6626 | return ret; | |
6627 | } else { | |
6628 | group = peer->group; | |
6629 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, | |
6630 | peer)) { | |
6631 | peer->gtsm_hops = group->conf->gtsm_hops; | |
6632 | ||
6633 | /* Calling ebgp multihop also resets the | |
6634 | * session. | |
6635 | * On restart, NHT will get setup correctly as | |
6636 | * will the | |
6637 | * min & max ttls on the socket. The return | |
6638 | * value is | |
6639 | * irrelevant. | |
6640 | */ | |
6641 | peer_ebgp_multihop_set(peer, MAXTTL); | |
6642 | } | |
6643 | } | |
6644 | } else { | |
6645 | /* Post the first gtsm setup or if its ibgp, maxttl setting | |
6646 | * isn't | |
6647 | * necessary, just set the minttl. | |
6648 | */ | |
6649 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
6650 | peer->gtsm_hops = gtsm_hops; | |
6651 | ||
6652 | if (peer->fd >= 0) | |
6653 | sockopt_minttl(peer->su.sa.sa_family, peer->fd, | |
6654 | MAXTTL + 1 - gtsm_hops); | |
6655 | if ((peer->status < Established) && peer->doppelganger | |
6656 | && (peer->doppelganger->fd >= 0)) | |
6657 | sockopt_minttl(peer->su.sa.sa_family, | |
6658 | peer->doppelganger->fd, | |
6659 | MAXTTL + 1 - gtsm_hops); | |
6660 | } else { | |
6661 | group = peer->group; | |
6662 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, | |
6663 | peer)) { | |
6664 | peer->gtsm_hops = group->conf->gtsm_hops; | |
6665 | ||
6666 | /* Change setting of existing peer | |
6667 | * established then change value (may break | |
6668 | * connectivity) | |
6669 | * not established yet (teardown session and | |
6670 | * restart) | |
6671 | * no session then do nothing (will get | |
6672 | * handled by next connection) | |
6673 | */ | |
e2521429 DA |
6674 | if (peer->fd >= 0 |
6675 | && peer->gtsm_hops | |
6676 | != BGP_GTSM_HOPS_DISABLED) | |
d62a17ae | 6677 | sockopt_minttl( |
6678 | peer->su.sa.sa_family, peer->fd, | |
6679 | MAXTTL + 1 - peer->gtsm_hops); | |
6680 | if ((peer->status < Established) | |
6681 | && peer->doppelganger | |
6682 | && (peer->doppelganger->fd >= 0)) | |
6683 | sockopt_minttl(peer->su.sa.sa_family, | |
6684 | peer->doppelganger->fd, | |
6685 | MAXTTL + 1 - gtsm_hops); | |
6686 | } | |
6687 | } | |
6688 | } | |
718e3744 | 6689 | |
d62a17ae | 6690 | return 0; |
718e3744 | 6691 | } |
6692 | ||
d62a17ae | 6693 | int peer_ttl_security_hops_unset(struct peer *peer) |
6694 | { | |
6695 | struct peer_group *group; | |
6696 | struct listnode *node, *nnode; | |
6697 | int ret = 0; | |
6698 | ||
6699 | zlog_debug("peer_ttl_security_hops_unset: set gtsm_hops to zero for %s", | |
6700 | peer->host); | |
6701 | ||
6702 | /* if a peer-group member, then reset to peer-group default rather than | |
6703 | * 0 */ | |
6704 | if (peer_group_active(peer)) | |
6705 | peer->gtsm_hops = peer->group->conf->gtsm_hops; | |
6706 | else | |
e2521429 | 6707 | peer->gtsm_hops = BGP_GTSM_HOPS_DISABLED; |
d62a17ae | 6708 | |
6709 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
6710 | /* Invoking ebgp_multihop_set will set the TTL back to the | |
6711 | * original | |
6712 | * value as well as restting the NHT and such. The session is | |
6713 | * reset. | |
6714 | */ | |
6715 | if (peer->sort == BGP_PEER_EBGP) | |
6716 | ret = peer_ebgp_multihop_unset(peer); | |
6717 | else { | |
6718 | if (peer->fd >= 0) | |
6719 | sockopt_minttl(peer->su.sa.sa_family, peer->fd, | |
6720 | 0); | |
6721 | ||
6722 | if ((peer->status < Established) && peer->doppelganger | |
6723 | && (peer->doppelganger->fd >= 0)) | |
6724 | sockopt_minttl(peer->su.sa.sa_family, | |
6725 | peer->doppelganger->fd, 0); | |
6726 | } | |
6727 | } else { | |
6728 | group = peer->group; | |
6729 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
e2521429 | 6730 | peer->gtsm_hops = BGP_GTSM_HOPS_DISABLED; |
d62a17ae | 6731 | if (peer->sort == BGP_PEER_EBGP) |
6732 | ret = peer_ebgp_multihop_unset(peer); | |
6733 | else { | |
6734 | if (peer->fd >= 0) | |
6735 | sockopt_minttl(peer->su.sa.sa_family, | |
6736 | peer->fd, 0); | |
6737 | ||
6738 | if ((peer->status < Established) | |
6739 | && peer->doppelganger | |
6740 | && (peer->doppelganger->fd >= 0)) | |
6741 | sockopt_minttl(peer->su.sa.sa_family, | |
6742 | peer->doppelganger->fd, | |
6743 | 0); | |
6744 | } | |
6745 | } | |
6746 | } | |
718e3744 | 6747 | |
d62a17ae | 6748 | return ret; |
6749 | } | |
6750 | ||
6751 | /* | |
6752 | * If peer clear is invoked in a loop for all peers on the BGP instance, | |
6753 | * it may end up freeing the doppelganger, and if this was the next node | |
6754 | * to the current node, we would end up accessing the freed next node. | |
6755 | * Pass along additional parameter which can be updated if next node | |
6756 | * is freed; only required when walking the peer list on BGP instance. | |
6757 | */ | |
6758 | int peer_clear(struct peer *peer, struct listnode **nnode) | |
6759 | { | |
6760 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_SHUTDOWN)) { | |
6761 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_PREFIX_OVERFLOW)) { | |
6762 | UNSET_FLAG(peer->sflags, PEER_STATUS_PREFIX_OVERFLOW); | |
6763 | if (peer->t_pmax_restart) { | |
6764 | BGP_TIMER_OFF(peer->t_pmax_restart); | |
6765 | if (bgp_debug_neighbor_events(peer)) | |
6766 | zlog_debug( | |
6767 | "%s Maximum-prefix restart timer canceled", | |
6768 | peer->host); | |
6769 | } | |
6770 | BGP_EVENT_ADD(peer, BGP_Start); | |
6771 | return 0; | |
6772 | } | |
6773 | ||
6774 | peer->v_start = BGP_INIT_START_TIMER; | |
6775 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
6776 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
6777 | BGP_NOTIFY_CEASE_ADMIN_RESET); | |
6778 | else | |
6779 | bgp_session_reset_safe(peer, nnode); | |
718e3744 | 6780 | } |
d62a17ae | 6781 | return 0; |
718e3744 | 6782 | } |
6b0655a2 | 6783 | |
d62a17ae | 6784 | int peer_clear_soft(struct peer *peer, afi_t afi, safi_t safi, |
6785 | enum bgp_clear_type stype) | |
718e3744 | 6786 | { |
d62a17ae | 6787 | struct peer_af *paf; |
718e3744 | 6788 | |
d62a17ae | 6789 | if (peer->status != Established) |
6790 | return 0; | |
718e3744 | 6791 | |
d62a17ae | 6792 | if (!peer->afc[afi][safi]) |
6793 | return BGP_ERR_AF_UNCONFIGURED; | |
718e3744 | 6794 | |
d62a17ae | 6795 | peer->rtt = sockopt_tcp_rtt(peer->fd); |
718e3744 | 6796 | |
d62a17ae | 6797 | if (stype == BGP_CLEAR_SOFT_OUT || stype == BGP_CLEAR_SOFT_BOTH) { |
6798 | /* Clear the "neighbor x.x.x.x default-originate" flag */ | |
6799 | paf = peer_af_find(peer, afi, safi); | |
6800 | if (paf && paf->subgroup | |
6801 | && CHECK_FLAG(paf->subgroup->sflags, | |
6802 | SUBGRP_STATUS_DEFAULT_ORIGINATE)) | |
6803 | UNSET_FLAG(paf->subgroup->sflags, | |
6804 | SUBGRP_STATUS_DEFAULT_ORIGINATE); | |
718e3744 | 6805 | |
d62a17ae | 6806 | bgp_announce_route(peer, afi, safi); |
6807 | } | |
718e3744 | 6808 | |
d62a17ae | 6809 | if (stype == BGP_CLEAR_SOFT_IN_ORF_PREFIX) { |
6810 | if (CHECK_FLAG(peer->af_cap[afi][safi], | |
6811 | PEER_CAP_ORF_PREFIX_SM_ADV) | |
6812 | && (CHECK_FLAG(peer->af_cap[afi][safi], | |
6813 | PEER_CAP_ORF_PREFIX_RM_RCV) | |
6814 | || CHECK_FLAG(peer->af_cap[afi][safi], | |
6815 | PEER_CAP_ORF_PREFIX_RM_OLD_RCV))) { | |
6816 | struct bgp_filter *filter = &peer->filter[afi][safi]; | |
d7c0a89a | 6817 | uint8_t prefix_type; |
d62a17ae | 6818 | |
6819 | if (CHECK_FLAG(peer->af_cap[afi][safi], | |
6820 | PEER_CAP_ORF_PREFIX_RM_RCV)) | |
6821 | prefix_type = ORF_TYPE_PREFIX; | |
6822 | else | |
6823 | prefix_type = ORF_TYPE_PREFIX_OLD; | |
6824 | ||
6825 | if (filter->plist[FILTER_IN].plist) { | |
6826 | if (CHECK_FLAG(peer->af_sflags[afi][safi], | |
6827 | PEER_STATUS_ORF_PREFIX_SEND)) | |
6828 | bgp_route_refresh_send( | |
6829 | peer, afi, safi, prefix_type, | |
6830 | REFRESH_DEFER, 1); | |
6831 | bgp_route_refresh_send(peer, afi, safi, | |
6832 | prefix_type, | |
6833 | REFRESH_IMMEDIATE, 0); | |
6834 | } else { | |
6835 | if (CHECK_FLAG(peer->af_sflags[afi][safi], | |
6836 | PEER_STATUS_ORF_PREFIX_SEND)) | |
6837 | bgp_route_refresh_send( | |
6838 | peer, afi, safi, prefix_type, | |
6839 | REFRESH_IMMEDIATE, 1); | |
6840 | else | |
6841 | bgp_route_refresh_send(peer, afi, safi, | |
6842 | 0, 0, 0); | |
6843 | } | |
6844 | return 0; | |
6845 | } | |
6846 | } | |
718e3744 | 6847 | |
d62a17ae | 6848 | if (stype == BGP_CLEAR_SOFT_IN || stype == BGP_CLEAR_SOFT_BOTH |
6849 | || stype == BGP_CLEAR_SOFT_IN_ORF_PREFIX) { | |
6850 | /* If neighbor has soft reconfiguration inbound flag. | |
6851 | Use Adj-RIB-In database. */ | |
6852 | if (CHECK_FLAG(peer->af_flags[afi][safi], | |
6853 | PEER_FLAG_SOFT_RECONFIG)) | |
6854 | bgp_soft_reconfig_in(peer, afi, safi); | |
6855 | else { | |
6856 | /* If neighbor has route refresh capability, send route | |
6857 | refresh | |
6858 | message to the peer. */ | |
6859 | if (CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_OLD_RCV) | |
6860 | || CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_NEW_RCV)) | |
6861 | bgp_route_refresh_send(peer, afi, safi, 0, 0, | |
6862 | 0); | |
6863 | else | |
6864 | return BGP_ERR_SOFT_RECONFIG_UNCONFIGURED; | |
6865 | } | |
6866 | } | |
6867 | return 0; | |
718e3744 | 6868 | } |
6869 | ||
d62a17ae | 6870 | /* Display peer uptime.*/ |
9f049418 | 6871 | char *peer_uptime(time_t uptime2, char *buf, size_t len, bool use_json, |
d62a17ae | 6872 | json_object *json) |
6873 | { | |
6874 | time_t uptime1, epoch_tbuf; | |
a2700b50 | 6875 | struct tm tm; |
d62a17ae | 6876 | |
d62a17ae | 6877 | /* If there is no connection has been done before print `never'. */ |
6878 | if (uptime2 == 0) { | |
6879 | if (use_json) { | |
6880 | json_object_string_add(json, "peerUptime", "never"); | |
6881 | json_object_int_add(json, "peerUptimeMsec", 0); | |
6882 | } else | |
6883 | snprintf(buf, len, "never"); | |
6884 | return buf; | |
6885 | } | |
718e3744 | 6886 | |
d62a17ae | 6887 | /* Get current time. */ |
6888 | uptime1 = bgp_clock(); | |
6889 | uptime1 -= uptime2; | |
a2700b50 | 6890 | gmtime_r(&uptime1, &tm); |
718e3744 | 6891 | |
d62a17ae | 6892 | if (uptime1 < ONE_DAY_SECOND) |
a2700b50 MS |
6893 | snprintf(buf, len, "%02d:%02d:%02d", tm.tm_hour, tm.tm_min, |
6894 | tm.tm_sec); | |
d62a17ae | 6895 | else if (uptime1 < ONE_WEEK_SECOND) |
a2700b50 MS |
6896 | snprintf(buf, len, "%dd%02dh%02dm", tm.tm_yday, tm.tm_hour, |
6897 | tm.tm_min); | |
d62a17ae | 6898 | else if (uptime1 < ONE_YEAR_SECOND) |
a2700b50 MS |
6899 | snprintf(buf, len, "%02dw%dd%02dh", tm.tm_yday / 7, |
6900 | tm.tm_yday - ((tm.tm_yday / 7) * 7), tm.tm_hour); | |
d62a17ae | 6901 | else |
a2700b50 MS |
6902 | snprintf(buf, len, "%02dy%02dw%dd", tm.tm_year - 70, |
6903 | tm.tm_yday / 7, | |
6904 | tm.tm_yday - ((tm.tm_yday / 7) * 7)); | |
d62a17ae | 6905 | |
6906 | if (use_json) { | |
6907 | epoch_tbuf = time(NULL) - uptime1; | |
6908 | json_object_string_add(json, "peerUptime", buf); | |
6909 | json_object_int_add(json, "peerUptimeMsec", uptime1 * 1000); | |
6910 | json_object_int_add(json, "peerUptimeEstablishedEpoch", | |
6911 | epoch_tbuf); | |
6912 | } | |
718e3744 | 6913 | |
d62a17ae | 6914 | return buf; |
718e3744 | 6915 | } |
6916 | ||
c2d020ad | 6917 | void bgp_master_init(struct thread_master *master, const int buffer_size) |
718e3744 | 6918 | { |
d62a17ae | 6919 | qobj_init(); |
0e64d123 | 6920 | |
d62a17ae | 6921 | memset(&bgp_master, 0, sizeof(struct bgp_master)); |
718e3744 | 6922 | |
d62a17ae | 6923 | bm = &bgp_master; |
6924 | bm->bgp = list_new(); | |
6925 | bm->listen_sockets = list_new(); | |
6926 | bm->port = BGP_PORT_DEFAULT; | |
6927 | bm->master = master; | |
6928 | bm->start_time = bgp_clock(); | |
6929 | bm->t_rmap_update = NULL; | |
6930 | bm->rmap_update_timer = RMAP_DEFAULT_UPDATE_TIMER; | |
97b4a0ec | 6931 | bm->terminating = false; |
c2d020ad | 6932 | bm->socket_buffer = buffer_size; |
495f0b13 | 6933 | |
d62a17ae | 6934 | bgp_process_queue_init(); |
b8fd6a15 | 6935 | |
48ecf8f5 | 6936 | bgp_mac_init(); |
e9eb5f63 | 6937 | /* init the rd id space. |
6938 | assign 0th index in the bitfield, | |
523cafc4 | 6939 | so that we start with id 1 |
6940 | */ | |
e9eb5f63 | 6941 | bf_init(bm->rd_idspace, UINT16_MAX); |
6942 | bf_assign_zero_index(bm->rd_idspace); | |
6943 | ||
955bfd98 | 6944 | /* mpls label dynamic allocation pool */ |
e70e9f8e | 6945 | bgp_lp_init(bm->master, &bm->labelpool); |
955bfd98 | 6946 | |
d62a17ae | 6947 | QOBJ_REG(bm, bgp_master); |
718e3744 | 6948 | } |
200df115 | 6949 | |
ad4cbda1 | 6950 | /* |
009b18fc | 6951 | * Free up connected routes and interfaces for a BGP instance. Invoked upon |
6952 | * instance delete (non-default only) or BGP exit. | |
ad4cbda1 | 6953 | */ |
d62a17ae | 6954 | static void bgp_if_finish(struct bgp *bgp) |
ad4cbda1 | 6955 | { |
ee66b77f | 6956 | struct vrf *vrf; |
d62a17ae | 6957 | struct interface *ifp; |
6958 | ||
ee66b77f PG |
6959 | vrf = bgp_vrf_lookup_by_instance_type(bgp); |
6960 | ||
f4e14fdb | 6961 | if (bgp->inst_type == BGP_INSTANCE_TYPE_VIEW || !vrf) |
d62a17ae | 6962 | return; |
ad4cbda1 | 6963 | |
451fda4f | 6964 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 6965 | struct listnode *c_node, *c_nnode; |
6966 | struct connected *c; | |
ad4cbda1 | 6967 | |
d62a17ae | 6968 | for (ALL_LIST_ELEMENTS(ifp->connected, c_node, c_nnode, c)) |
6969 | bgp_connected_delete(bgp, c); | |
6970 | } | |
ad4cbda1 | 6971 | } |
6b0655a2 | 6972 | |
d62a17ae | 6973 | static void bgp_viewvrf_autocomplete(vector comps, struct cmd_token *token) |
18c57037 | 6974 | { |
d62a17ae | 6975 | struct vrf *vrf = NULL; |
6976 | struct listnode *next; | |
6977 | struct bgp *bgp; | |
18c57037 | 6978 | |
6a8ca00f PG |
6979 | RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) |
6980 | vector_set(comps, XSTRDUP(MTYPE_COMPLETION, vrf->name)); | |
18c57037 | 6981 | |
d62a17ae | 6982 | for (ALL_LIST_ELEMENTS_RO(bm->bgp, next, bgp)) { |
6983 | if (bgp->inst_type != BGP_INSTANCE_TYPE_VIEW) | |
6984 | continue; | |
18c57037 | 6985 | |
d62a17ae | 6986 | vector_set(comps, XSTRDUP(MTYPE_COMPLETION, bgp->name)); |
6987 | } | |
18c57037 DS |
6988 | } |
6989 | ||
2ed9fe4a DL |
6990 | static void bgp_instasn_autocomplete(vector comps, struct cmd_token *token) |
6991 | { | |
6992 | struct listnode *next, *next2; | |
6993 | struct bgp *bgp, *bgp2; | |
6994 | char buf[11]; | |
6995 | ||
6996 | for (ALL_LIST_ELEMENTS_RO(bm->bgp, next, bgp)) { | |
6997 | /* deduplicate */ | |
6998 | for (ALL_LIST_ELEMENTS_RO(bm->bgp, next2, bgp2)) { | |
6999 | if (bgp2->as == bgp->as) | |
7000 | break; | |
7001 | if (bgp2 == bgp) | |
7002 | break; | |
7003 | } | |
7004 | if (bgp2 != bgp) | |
7005 | continue; | |
7006 | ||
7007 | snprintf(buf, sizeof(buf), "%u", bgp->as); | |
7008 | vector_set(comps, XSTRDUP(MTYPE_COMPLETION, buf)); | |
7009 | } | |
7010 | } | |
7011 | ||
18c57037 | 7012 | static const struct cmd_variable_handler bgp_viewvrf_var_handlers[] = { |
d62a17ae | 7013 | {.tokenname = "VIEWVRFNAME", .completions = bgp_viewvrf_autocomplete}, |
2ed9fe4a | 7014 | {.varname = "instasn", .completions = bgp_instasn_autocomplete}, |
d62a17ae | 7015 | {.completions = NULL}, |
18c57037 DS |
7016 | }; |
7017 | ||
1ac267a2 DL |
7018 | struct frr_pthread *bgp_pth_io; |
7019 | struct frr_pthread *bgp_pth_ka; | |
7020 | ||
4d762f26 | 7021 | static void bgp_pthreads_init(void) |
2d4ee774 | 7022 | { |
1ac267a2 DL |
7023 | assert(!bgp_pth_io); |
7024 | assert(!bgp_pth_ka); | |
7025 | ||
a715eab3 | 7026 | struct frr_pthread_attr io = { |
a715eab3 QY |
7027 | .start = frr_pthread_attr_default.start, |
7028 | .stop = frr_pthread_attr_default.stop, | |
a715eab3 QY |
7029 | }; |
7030 | struct frr_pthread_attr ka = { | |
a715eab3 QY |
7031 | .start = bgp_keepalives_start, |
7032 | .stop = bgp_keepalives_stop, | |
a715eab3 | 7033 | }; |
1ac267a2 DL |
7034 | bgp_pth_io = frr_pthread_new(&io, "BGP I/O thread", "bgpd_io"); |
7035 | bgp_pth_ka = frr_pthread_new(&ka, "BGP Keepalives thread", "bgpd_ka"); | |
419dfe6a QY |
7036 | } |
7037 | ||
4d762f26 | 7038 | void bgp_pthreads_run(void) |
419dfe6a | 7039 | { |
1ac267a2 DL |
7040 | frr_pthread_run(bgp_pth_io, NULL); |
7041 | frr_pthread_run(bgp_pth_ka, NULL); | |
88b24dee | 7042 | |
a715eab3 | 7043 | /* Wait until threads are ready. */ |
1ac267a2 DL |
7044 | frr_pthread_wait_running(bgp_pth_io); |
7045 | frr_pthread_wait_running(bgp_pth_ka); | |
2d4ee774 QY |
7046 | } |
7047 | ||
4d762f26 | 7048 | void bgp_pthreads_finish(void) |
2d4ee774 | 7049 | { |
0ca8b79f | 7050 | frr_pthread_stop_all(); |
2d4ee774 QY |
7051 | } |
7052 | ||
f533be73 | 7053 | void bgp_init(unsigned short instance) |
718e3744 | 7054 | { |
fc9a856f | 7055 | |
d62a17ae | 7056 | /* allocates some vital data structures used by peer commands in |
7057 | * vty_init */ | |
718e3744 | 7058 | |
419dfe6a QY |
7059 | /* pre-init pthreads */ |
7060 | bgp_pthreads_init(); | |
7061 | ||
d62a17ae | 7062 | /* Init zebra. */ |
f533be73 | 7063 | bgp_zebra_init(bm->master, instance); |
718e3744 | 7064 | |
49e5a4a0 | 7065 | #ifdef ENABLE_BGP_VNC |
d62a17ae | 7066 | vnc_zebra_init(bm->master); |
65efcfce LB |
7067 | #endif |
7068 | ||
d62a17ae | 7069 | /* BGP VTY commands installation. */ |
7070 | bgp_vty_init(); | |
7071 | ||
7072 | /* BGP inits. */ | |
7073 | bgp_attr_init(); | |
7074 | bgp_debug_init(); | |
7075 | bgp_dump_init(); | |
7076 | bgp_route_init(); | |
7077 | bgp_route_map_init(); | |
7078 | bgp_scan_vty_init(); | |
7079 | bgp_mplsvpn_init(); | |
49e5a4a0 | 7080 | #ifdef ENABLE_BGP_VNC |
d62a17ae | 7081 | rfapi_init(); |
65efcfce | 7082 | #endif |
d62a17ae | 7083 | bgp_ethernetvpn_init(); |
7c40bf39 | 7084 | bgp_flowspec_vty_init(); |
d62a17ae | 7085 | |
7086 | /* Access list initialize. */ | |
7087 | access_list_init(); | |
7088 | access_list_add_hook(peer_distribute_update); | |
7089 | access_list_delete_hook(peer_distribute_update); | |
7090 | ||
7091 | /* Filter list initialize. */ | |
7092 | bgp_filter_init(); | |
7093 | as_list_add_hook(peer_aslist_add); | |
7094 | as_list_delete_hook(peer_aslist_del); | |
7095 | ||
7096 | /* Prefix list initialize.*/ | |
7097 | prefix_list_init(); | |
7098 | prefix_list_add_hook(peer_prefix_list_update); | |
7099 | prefix_list_delete_hook(peer_prefix_list_update); | |
7100 | ||
7101 | /* Community list initialize. */ | |
7102 | bgp_clist = community_list_init(); | |
7103 | ||
7104 | /* BFD init */ | |
7105 | bgp_bfd_init(); | |
7106 | ||
7107 | cmd_variable_handler_register(bgp_viewvrf_var_handlers); | |
7108 | } | |
7109 | ||
7110 | void bgp_terminate(void) | |
7111 | { | |
7112 | struct bgp *bgp; | |
7113 | struct peer *peer; | |
7114 | struct listnode *node, *nnode; | |
7115 | struct listnode *mnode, *mnnode; | |
7116 | ||
7117 | QOBJ_UNREG(bm); | |
7118 | ||
7119 | /* Close the listener sockets first as this prevents peers from | |
7120 | * attempting | |
7121 | * to reconnect on receiving the peer unconfig message. In the presence | |
7122 | * of a large number of peers this will ensure that no peer is left with | |
7123 | * a dangling connection | |
7124 | */ | |
7125 | /* reverse bgp_master_init */ | |
7126 | bgp_close(); | |
c3004bc4 | 7127 | |
d62a17ae | 7128 | if (bm->listen_sockets) |
6a154c88 | 7129 | list_delete(&bm->listen_sockets); |
d62a17ae | 7130 | |
7131 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) | |
7132 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
7133 | if (peer->status == Established | |
7134 | || peer->status == OpenSent | |
7135 | || peer->status == OpenConfirm) | |
7136 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
7137 | BGP_NOTIFY_CEASE_PEER_UNCONFIG); | |
7138 | ||
e208c8f9 DS |
7139 | if (bm->process_main_queue) |
7140 | work_queue_free_and_null(&bm->process_main_queue); | |
d62a17ae | 7141 | |
7142 | if (bm->t_rmap_update) | |
7143 | BGP_TIMER_OFF(bm->t_rmap_update); | |
955bfd98 | 7144 | |
48ecf8f5 | 7145 | bgp_mac_finish(); |
545acafb | 7146 | } |
dcc1615e DD |
7147 | |
7148 | struct peer *peer_lookup_in_view(struct vty *vty, struct bgp *bgp, | |
7149 | const char *ip_str, bool use_json) | |
7150 | { | |
7151 | int ret; | |
7152 | struct peer *peer; | |
7153 | union sockunion su; | |
7154 | ||
7155 | /* Get peer sockunion. */ | |
7156 | ret = str2sockunion(ip_str, &su); | |
7157 | if (ret < 0) { | |
7158 | peer = peer_lookup_by_conf_if(bgp, ip_str); | |
7159 | if (!peer) { | |
7160 | peer = peer_lookup_by_hostname(bgp, ip_str); | |
7161 | ||
7162 | if (!peer) { | |
7163 | if (use_json) { | |
7164 | json_object *json_no = NULL; | |
7165 | json_no = json_object_new_object(); | |
7166 | json_object_string_add( | |
7167 | json_no, | |
7168 | "malformedAddressOrName", | |
7169 | ip_str); | |
7170 | vty_out(vty, "%s\n", | |
7171 | json_object_to_json_string_ext( | |
7172 | json_no, | |
7173 | JSON_C_TO_STRING_PRETTY)); | |
7174 | json_object_free(json_no); | |
7175 | } else | |
7176 | vty_out(vty, | |
7177 | "%% Malformed address or name: %s\n", | |
7178 | ip_str); | |
7179 | return NULL; | |
7180 | } | |
7181 | } | |
7182 | return peer; | |
7183 | } | |
7184 | ||
7185 | /* Peer structure lookup. */ | |
7186 | peer = peer_lookup(bgp, &su); | |
7187 | if (!peer) { | |
7188 | if (use_json) { | |
7189 | json_object *json_no = NULL; | |
7190 | json_no = json_object_new_object(); | |
7191 | json_object_string_add(json_no, "warning", | |
7192 | "No such neighbor in this view/vrf"); | |
7193 | vty_out(vty, "%s\n", | |
7194 | json_object_to_json_string_ext( | |
7195 | json_no, JSON_C_TO_STRING_PRETTY)); | |
7196 | json_object_free(json_no); | |
7197 | } else | |
7198 | vty_out(vty, "No such neighbor in this view/vrf\n"); | |
7199 | return NULL; | |
7200 | } | |
7201 | ||
7202 | return peer; | |
7203 | } | |
7204 | ||
794b37d5 | 7205 | void bgp_gr_apply_running_config(void) |
7206 | { | |
7207 | struct peer *peer = NULL; | |
7208 | struct bgp *bgp = NULL; | |
7209 | struct listnode *node, *nnode; | |
dc95985f | 7210 | bool gr_router_detected = false; |
794b37d5 | 7211 | |
7212 | if (BGP_DEBUG(graceful_restart, GRACEFUL_RESTART)) | |
36235319 | 7213 | zlog_debug("[BGP_GR] %s called !", __func__); |
794b37d5 | 7214 | |
dc95985f | 7215 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) { |
7216 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
794b37d5 | 7217 | bgp_peer_gr_flags_update(peer); |
36235319 | 7218 | if (CHECK_FLAG(peer->flags, PEER_FLAG_GRACEFUL_RESTART)) |
dc95985f | 7219 | gr_router_detected = true; |
7220 | } | |
7221 | ||
36235319 QY |
7222 | if (gr_router_detected |
7223 | && bgp->present_zebra_gr_state == ZEBRA_GR_DISABLE) { | |
2ba1fe69 | 7224 | bgp_zebra_send_capabilities(bgp, true); |
36235319 QY |
7225 | } else if (!gr_router_detected |
7226 | && bgp->present_zebra_gr_state == ZEBRA_GR_ENABLE) { | |
2ba1fe69 | 7227 | bgp_zebra_send_capabilities(bgp, false); |
dc95985f | 7228 | } |
7229 | ||
7230 | gr_router_detected = false; | |
7231 | } | |
794b37d5 | 7232 | } |