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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" | |
65efcfce | 68 | #if 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 | /* BGP flag manipulation. */ |
d62a17ae | 205 | int bgp_flag_set(struct bgp *bgp, int flag) |
718e3744 | 206 | { |
d62a17ae | 207 | SET_FLAG(bgp->flags, flag); |
208 | return 0; | |
718e3744 | 209 | } |
210 | ||
d62a17ae | 211 | int bgp_flag_unset(struct bgp *bgp, int flag) |
718e3744 | 212 | { |
d62a17ae | 213 | UNSET_FLAG(bgp->flags, flag); |
214 | return 0; | |
718e3744 | 215 | } |
216 | ||
d62a17ae | 217 | int bgp_flag_check(struct bgp *bgp, int flag) |
718e3744 | 218 | { |
d62a17ae | 219 | return CHECK_FLAG(bgp->flags, flag); |
718e3744 | 220 | } |
6b0655a2 | 221 | |
718e3744 | 222 | /* Internal function to set BGP structure configureation flag. */ |
d62a17ae | 223 | static void bgp_config_set(struct bgp *bgp, int config) |
718e3744 | 224 | { |
d62a17ae | 225 | SET_FLAG(bgp->config, config); |
718e3744 | 226 | } |
227 | ||
d62a17ae | 228 | static void bgp_config_unset(struct bgp *bgp, int config) |
718e3744 | 229 | { |
d62a17ae | 230 | UNSET_FLAG(bgp->config, config); |
718e3744 | 231 | } |
232 | ||
d62a17ae | 233 | static int bgp_config_check(struct bgp *bgp, int config) |
718e3744 | 234 | { |
d62a17ae | 235 | return CHECK_FLAG(bgp->config, config); |
718e3744 | 236 | } |
6b0655a2 | 237 | |
e65fe398 MS |
238 | /* Set BGP router identifier; distinguish between explicit config and other |
239 | * cases. | |
240 | */ | |
241 | static int bgp_router_id_set(struct bgp *bgp, const struct in_addr *id, | |
242 | bool is_config) | |
718e3744 | 243 | { |
d62a17ae | 244 | struct peer *peer; |
245 | struct listnode *node, *nnode; | |
718e3744 | 246 | |
d62a17ae | 247 | if (IPV4_ADDR_SAME(&bgp->router_id, id)) |
248 | return 0; | |
718e3744 | 249 | |
d62a17ae | 250 | /* EVPN uses router id in RD, withdraw them */ |
94c2f693 | 251 | if (is_evpn_enabled()) |
2951a7a4 | 252 | bgp_evpn_handle_router_id_update(bgp, true); |
2d48ee25 | 253 | |
2951a7a4 | 254 | vpn_handle_router_id_update(bgp, true, is_config); |
636f7608 | 255 | |
d62a17ae | 256 | IPV4_ADDR_COPY(&bgp->router_id, id); |
718e3744 | 257 | |
d62a17ae | 258 | /* Set all peer's local identifier with this value. */ |
259 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
260 | IPV4_ADDR_COPY(&peer->local_id, id); | |
718e3744 | 261 | |
d62a17ae | 262 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
263 | peer->last_reset = PEER_DOWN_RID_CHANGE; | |
264 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
265 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
266 | } | |
267 | } | |
14c1a7bf | 268 | |
d62a17ae | 269 | /* EVPN uses router id in RD, update them */ |
94c2f693 | 270 | if (is_evpn_enabled()) |
2951a7a4 | 271 | bgp_evpn_handle_router_id_update(bgp, false); |
2d48ee25 | 272 | |
2951a7a4 | 273 | vpn_handle_router_id_update(bgp, false, is_config); |
636f7608 | 274 | |
d62a17ae | 275 | return 0; |
718e3744 | 276 | } |
277 | ||
d62a17ae | 278 | void bgp_router_id_zebra_bump(vrf_id_t vrf_id, const struct prefix *router_id) |
0e6cb743 | 279 | { |
d62a17ae | 280 | struct listnode *node, *nnode; |
281 | struct bgp *bgp; | |
36dc7588 | 282 | struct in_addr *addr = NULL; |
283 | ||
284 | if (router_id != NULL) | |
285 | addr = (struct in_addr *)&(router_id->u.prefix4); | |
0e6cb743 | 286 | |
d62a17ae | 287 | if (vrf_id == VRF_DEFAULT) { |
288 | /* Router-id change for default VRF has to also update all | |
289 | * views. */ | |
290 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) { | |
291 | if (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) | |
292 | continue; | |
0e6cb743 | 293 | |
36dc7588 | 294 | if (addr) |
295 | bgp->router_id_zebra = *addr; | |
296 | else | |
297 | addr = &bgp->router_id_zebra; | |
298 | ||
299 | if (!bgp->router_id_static.s_addr) { | |
300 | /* Router ID is updated if there are no active | |
301 | * peer sessions | |
302 | */ | |
303 | if (bgp->established_peers == 0) { | |
304 | if (BGP_DEBUG(zebra, ZEBRA)) | |
305 | zlog_debug("RID change : vrf %u, RTR ID %s", | |
306 | bgp->vrf_id, inet_ntoa(*addr)); | |
2951a7a4 | 307 | bgp_router_id_set(bgp, addr, false); |
36dc7588 | 308 | } |
309 | } | |
d62a17ae | 310 | } |
311 | } else { | |
312 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
313 | if (bgp) { | |
36dc7588 | 314 | if (addr) |
315 | bgp->router_id_zebra = *addr; | |
316 | else | |
317 | addr = &bgp->router_id_zebra; | |
318 | ||
319 | if (!bgp->router_id_static.s_addr) { | |
320 | /* Router ID is updated if there are no active | |
321 | * peer sessions | |
322 | */ | |
323 | if (bgp->established_peers == 0) { | |
324 | if (BGP_DEBUG(zebra, ZEBRA)) | |
325 | zlog_debug("RID change : vrf %u, RTR ID %s", | |
326 | bgp->vrf_id, inet_ntoa(*addr)); | |
2951a7a4 | 327 | bgp_router_id_set(bgp, addr, false); |
36dc7588 | 328 | } |
329 | } | |
0e6cb743 | 330 | |
d62a17ae | 331 | } |
332 | } | |
0e6cb743 DL |
333 | } |
334 | ||
d62a17ae | 335 | int bgp_router_id_static_set(struct bgp *bgp, struct in_addr id) |
0e6cb743 | 336 | { |
d62a17ae | 337 | bgp->router_id_static = id; |
e65fe398 | 338 | bgp_router_id_set(bgp, id.s_addr ? &id : &bgp->router_id_zebra, |
2951a7a4 | 339 | true /* is config */); |
d62a17ae | 340 | return 0; |
0e6cb743 DL |
341 | } |
342 | ||
718e3744 | 343 | /* BGP's cluster-id control. */ |
d62a17ae | 344 | int bgp_cluster_id_set(struct bgp *bgp, struct in_addr *cluster_id) |
718e3744 | 345 | { |
d62a17ae | 346 | struct peer *peer; |
347 | struct listnode *node, *nnode; | |
718e3744 | 348 | |
d62a17ae | 349 | if (bgp_config_check(bgp, BGP_CONFIG_CLUSTER_ID) |
350 | && IPV4_ADDR_SAME(&bgp->cluster_id, cluster_id)) | |
351 | return 0; | |
718e3744 | 352 | |
d62a17ae | 353 | IPV4_ADDR_COPY(&bgp->cluster_id, cluster_id); |
354 | bgp_config_set(bgp, BGP_CONFIG_CLUSTER_ID); | |
718e3744 | 355 | |
d62a17ae | 356 | /* Clear all IBGP peer. */ |
357 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
358 | if (peer->sort != BGP_PEER_IBGP) | |
359 | continue; | |
718e3744 | 360 | |
d62a17ae | 361 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
362 | peer->last_reset = PEER_DOWN_CLID_CHANGE; | |
363 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
364 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
365 | } | |
366 | } | |
367 | return 0; | |
718e3744 | 368 | } |
369 | ||
d62a17ae | 370 | int bgp_cluster_id_unset(struct bgp *bgp) |
718e3744 | 371 | { |
d62a17ae | 372 | struct peer *peer; |
373 | struct listnode *node, *nnode; | |
718e3744 | 374 | |
d62a17ae | 375 | if (!bgp_config_check(bgp, BGP_CONFIG_CLUSTER_ID)) |
376 | return 0; | |
718e3744 | 377 | |
d62a17ae | 378 | bgp->cluster_id.s_addr = 0; |
379 | bgp_config_unset(bgp, BGP_CONFIG_CLUSTER_ID); | |
718e3744 | 380 | |
d62a17ae | 381 | /* Clear all IBGP peer. */ |
382 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
383 | if (peer->sort != BGP_PEER_IBGP) | |
384 | continue; | |
718e3744 | 385 | |
d62a17ae | 386 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
387 | peer->last_reset = PEER_DOWN_CLID_CHANGE; | |
388 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
389 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
390 | } | |
391 | } | |
392 | return 0; | |
718e3744 | 393 | } |
6b0655a2 | 394 | |
65957886 SH |
395 | /* time_t value that is monotonicly increasing |
396 | * and uneffected by adjustments to system clock | |
397 | */ | |
d62a17ae | 398 | time_t bgp_clock(void) |
65957886 | 399 | { |
d62a17ae | 400 | struct timeval tv; |
65957886 | 401 | |
d62a17ae | 402 | monotime(&tv); |
403 | return tv.tv_sec; | |
65957886 SH |
404 | } |
405 | ||
718e3744 | 406 | /* BGP timer configuration. */ |
5d5393b9 DL |
407 | int bgp_timers_set(struct bgp *bgp, uint32_t keepalive, uint32_t holdtime, |
408 | uint32_t connect_retry) | |
718e3744 | 409 | { |
d62a17ae | 410 | bgp->default_keepalive = |
411 | (keepalive < holdtime / 3 ? keepalive : holdtime / 3); | |
412 | bgp->default_holdtime = holdtime; | |
5d5393b9 | 413 | bgp->default_connect_retry = connect_retry; |
718e3744 | 414 | |
d62a17ae | 415 | return 0; |
718e3744 | 416 | } |
417 | ||
5d5393b9 | 418 | /* mostly for completeness - CLI uses its own defaults */ |
d62a17ae | 419 | int bgp_timers_unset(struct bgp *bgp) |
718e3744 | 420 | { |
d62a17ae | 421 | bgp->default_keepalive = BGP_DEFAULT_KEEPALIVE; |
422 | bgp->default_holdtime = BGP_DEFAULT_HOLDTIME; | |
5d5393b9 | 423 | bgp->default_connect_retry = BGP_DEFAULT_CONNECT_RETRY; |
718e3744 | 424 | |
d62a17ae | 425 | return 0; |
718e3744 | 426 | } |
6b0655a2 | 427 | |
718e3744 | 428 | /* BGP confederation configuration. */ |
d62a17ae | 429 | int bgp_confederation_id_set(struct bgp *bgp, as_t as) |
430 | { | |
431 | struct peer *peer; | |
432 | struct listnode *node, *nnode; | |
433 | int already_confed; | |
434 | ||
435 | if (as == 0) | |
436 | return BGP_ERR_INVALID_AS; | |
437 | ||
438 | /* Remember - were we doing confederation before? */ | |
439 | already_confed = bgp_config_check(bgp, BGP_CONFIG_CONFEDERATION); | |
440 | bgp->confed_id = as; | |
441 | bgp_config_set(bgp, BGP_CONFIG_CONFEDERATION); | |
442 | ||
443 | /* If we were doing confederation already, this is just an external | |
444 | AS change. Just Reset EBGP sessions, not CONFED sessions. If we | |
445 | were not doing confederation before, reset all EBGP sessions. */ | |
446 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
447 | /* We're looking for peers who's AS is not local or part of our | |
448 | confederation. */ | |
449 | if (already_confed) { | |
450 | if (peer_sort(peer) == BGP_PEER_EBGP) { | |
451 | peer->local_as = as; | |
452 | if (BGP_IS_VALID_STATE_FOR_NOTIF( | |
453 | peer->status)) { | |
454 | peer->last_reset = | |
455 | PEER_DOWN_CONFED_ID_CHANGE; | |
456 | bgp_notify_send( | |
457 | peer, BGP_NOTIFY_CEASE, | |
458 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
459 | } else | |
460 | bgp_session_reset_safe(peer, &nnode); | |
461 | } | |
462 | } else { | |
463 | /* Not doign confederation before, so reset every | |
464 | non-local | |
465 | session */ | |
466 | if (peer_sort(peer) != BGP_PEER_IBGP) { | |
467 | /* Reset the local_as to be our EBGP one */ | |
468 | if (peer_sort(peer) == BGP_PEER_EBGP) | |
469 | peer->local_as = as; | |
470 | if (BGP_IS_VALID_STATE_FOR_NOTIF( | |
471 | peer->status)) { | |
472 | peer->last_reset = | |
473 | PEER_DOWN_CONFED_ID_CHANGE; | |
474 | bgp_notify_send( | |
475 | peer, BGP_NOTIFY_CEASE, | |
476 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
477 | } else | |
478 | bgp_session_reset_safe(peer, &nnode); | |
479 | } | |
480 | } | |
718e3744 | 481 | } |
d62a17ae | 482 | return 0; |
718e3744 | 483 | } |
484 | ||
d62a17ae | 485 | int bgp_confederation_id_unset(struct bgp *bgp) |
718e3744 | 486 | { |
d62a17ae | 487 | struct peer *peer; |
488 | struct listnode *node, *nnode; | |
489 | ||
490 | bgp->confed_id = 0; | |
491 | bgp_config_unset(bgp, BGP_CONFIG_CONFEDERATION); | |
718e3744 | 492 | |
d62a17ae | 493 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { |
494 | /* We're looking for peers who's AS is not local */ | |
495 | if (peer_sort(peer) != BGP_PEER_IBGP) { | |
496 | peer->local_as = bgp->as; | |
497 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
498 | peer->last_reset = PEER_DOWN_CONFED_ID_CHANGE; | |
499 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
500 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
501 | } | |
718e3744 | 502 | |
d62a17ae | 503 | else |
504 | bgp_session_reset_safe(peer, &nnode); | |
505 | } | |
506 | } | |
507 | return 0; | |
718e3744 | 508 | } |
509 | ||
d62a17ae | 510 | /* Is an AS part of the confed or not? */ |
511 | int bgp_confederation_peers_check(struct bgp *bgp, as_t as) | |
718e3744 | 512 | { |
d62a17ae | 513 | int i; |
718e3744 | 514 | |
d62a17ae | 515 | if (!bgp) |
516 | return 0; | |
718e3744 | 517 | |
d62a17ae | 518 | for (i = 0; i < bgp->confed_peers_cnt; i++) |
519 | if (bgp->confed_peers[i] == as) | |
520 | return 1; | |
718e3744 | 521 | |
d62a17ae | 522 | return 0; |
523 | } | |
718e3744 | 524 | |
d62a17ae | 525 | /* Add an AS to the confederation set. */ |
526 | int bgp_confederation_peers_add(struct bgp *bgp, as_t as) | |
527 | { | |
528 | struct peer *peer; | |
529 | struct listnode *node, *nnode; | |
530 | ||
531 | if (!bgp) | |
532 | return BGP_ERR_INVALID_BGP; | |
533 | ||
534 | if (bgp->as == as) | |
535 | return BGP_ERR_INVALID_AS; | |
536 | ||
537 | if (bgp_confederation_peers_check(bgp, as)) | |
538 | return -1; | |
539 | ||
540 | if (bgp->confed_peers) | |
541 | bgp->confed_peers = | |
542 | XREALLOC(MTYPE_BGP_CONFED_LIST, bgp->confed_peers, | |
543 | (bgp->confed_peers_cnt + 1) * sizeof(as_t)); | |
544 | else | |
545 | bgp->confed_peers = | |
546 | XMALLOC(MTYPE_BGP_CONFED_LIST, | |
547 | (bgp->confed_peers_cnt + 1) * sizeof(as_t)); | |
548 | ||
549 | bgp->confed_peers[bgp->confed_peers_cnt] = as; | |
550 | bgp->confed_peers_cnt++; | |
551 | ||
552 | if (bgp_config_check(bgp, BGP_CONFIG_CONFEDERATION)) { | |
553 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
554 | if (peer->as == as) { | |
555 | peer->local_as = bgp->as; | |
556 | if (BGP_IS_VALID_STATE_FOR_NOTIF( | |
557 | peer->status)) { | |
558 | peer->last_reset = | |
559 | PEER_DOWN_CONFED_PEER_CHANGE; | |
560 | bgp_notify_send( | |
561 | peer, BGP_NOTIFY_CEASE, | |
562 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
563 | } else | |
564 | bgp_session_reset_safe(peer, &nnode); | |
565 | } | |
566 | } | |
567 | } | |
568 | return 0; | |
718e3744 | 569 | } |
570 | ||
571 | /* Delete an AS from the confederation set. */ | |
d62a17ae | 572 | int bgp_confederation_peers_remove(struct bgp *bgp, as_t as) |
573 | { | |
574 | int i; | |
575 | int j; | |
576 | struct peer *peer; | |
577 | struct listnode *node, *nnode; | |
578 | ||
579 | if (!bgp) | |
580 | return -1; | |
581 | ||
582 | if (!bgp_confederation_peers_check(bgp, as)) | |
583 | return -1; | |
584 | ||
585 | for (i = 0; i < bgp->confed_peers_cnt; i++) | |
586 | if (bgp->confed_peers[i] == as) | |
587 | for (j = i + 1; j < bgp->confed_peers_cnt; j++) | |
588 | bgp->confed_peers[j - 1] = bgp->confed_peers[j]; | |
589 | ||
590 | bgp->confed_peers_cnt--; | |
591 | ||
592 | if (bgp->confed_peers_cnt == 0) { | |
593 | if (bgp->confed_peers) | |
594 | XFREE(MTYPE_BGP_CONFED_LIST, bgp->confed_peers); | |
595 | bgp->confed_peers = NULL; | |
596 | } else | |
597 | bgp->confed_peers = | |
598 | XREALLOC(MTYPE_BGP_CONFED_LIST, bgp->confed_peers, | |
599 | bgp->confed_peers_cnt * sizeof(as_t)); | |
600 | ||
601 | /* Now reset any peer who's remote AS has just been removed from the | |
602 | CONFED */ | |
603 | if (bgp_config_check(bgp, BGP_CONFIG_CONFEDERATION)) { | |
604 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
605 | if (peer->as == as) { | |
606 | peer->local_as = bgp->confed_id; | |
607 | if (BGP_IS_VALID_STATE_FOR_NOTIF( | |
608 | peer->status)) { | |
609 | peer->last_reset = | |
610 | PEER_DOWN_CONFED_PEER_CHANGE; | |
611 | bgp_notify_send( | |
612 | peer, BGP_NOTIFY_CEASE, | |
613 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
614 | } else | |
615 | bgp_session_reset_safe(peer, &nnode); | |
616 | } | |
617 | } | |
718e3744 | 618 | } |
718e3744 | 619 | |
d62a17ae | 620 | return 0; |
718e3744 | 621 | } |
6b0655a2 | 622 | |
718e3744 | 623 | /* Local preference configuration. */ |
d7c0a89a | 624 | int bgp_default_local_preference_set(struct bgp *bgp, uint32_t local_pref) |
718e3744 | 625 | { |
d62a17ae | 626 | if (!bgp) |
627 | return -1; | |
718e3744 | 628 | |
d62a17ae | 629 | bgp->default_local_pref = local_pref; |
718e3744 | 630 | |
d62a17ae | 631 | return 0; |
718e3744 | 632 | } |
633 | ||
d62a17ae | 634 | int bgp_default_local_preference_unset(struct bgp *bgp) |
718e3744 | 635 | { |
d62a17ae | 636 | if (!bgp) |
637 | return -1; | |
718e3744 | 638 | |
d62a17ae | 639 | bgp->default_local_pref = BGP_DEFAULT_LOCAL_PREF; |
718e3744 | 640 | |
d62a17ae | 641 | return 0; |
718e3744 | 642 | } |
6b0655a2 | 643 | |
3f9c7369 | 644 | /* Local preference configuration. */ |
d7c0a89a | 645 | int bgp_default_subgroup_pkt_queue_max_set(struct bgp *bgp, uint32_t queue_size) |
3f9c7369 | 646 | { |
d62a17ae | 647 | if (!bgp) |
648 | return -1; | |
3f9c7369 | 649 | |
d62a17ae | 650 | bgp->default_subgroup_pkt_queue_max = queue_size; |
3f9c7369 | 651 | |
d62a17ae | 652 | return 0; |
3f9c7369 DS |
653 | } |
654 | ||
d62a17ae | 655 | int bgp_default_subgroup_pkt_queue_max_unset(struct bgp *bgp) |
3f9c7369 | 656 | { |
d62a17ae | 657 | if (!bgp) |
658 | return -1; | |
659 | bgp->default_subgroup_pkt_queue_max = | |
660 | BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX; | |
3f9c7369 | 661 | |
d62a17ae | 662 | return 0; |
3f9c7369 DS |
663 | } |
664 | ||
f14e6fdb | 665 | /* Listen limit configuration. */ |
d62a17ae | 666 | int bgp_listen_limit_set(struct bgp *bgp, int listen_limit) |
f14e6fdb | 667 | { |
d62a17ae | 668 | if (!bgp) |
669 | return -1; | |
f14e6fdb | 670 | |
d62a17ae | 671 | bgp->dynamic_neighbors_limit = listen_limit; |
f14e6fdb | 672 | |
d62a17ae | 673 | return 0; |
f14e6fdb DS |
674 | } |
675 | ||
d62a17ae | 676 | int bgp_listen_limit_unset(struct bgp *bgp) |
f14e6fdb | 677 | { |
d62a17ae | 678 | if (!bgp) |
679 | return -1; | |
f14e6fdb | 680 | |
d62a17ae | 681 | bgp->dynamic_neighbors_limit = BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT; |
f14e6fdb | 682 | |
d62a17ae | 683 | return 0; |
f14e6fdb DS |
684 | } |
685 | ||
5c525538 RW |
686 | int bgp_map_afi_safi_iana2int(iana_afi_t pkt_afi, iana_safi_t pkt_safi, |
687 | afi_t *afi, safi_t *safi) | |
9cabb64b | 688 | { |
d62a17ae | 689 | /* Map from IANA values to internal values, return error if |
690 | * values are unrecognized. | |
691 | */ | |
692 | *afi = afi_iana2int(pkt_afi); | |
693 | *safi = safi_iana2int(pkt_safi); | |
694 | if (*afi == AFI_MAX || *safi == SAFI_MAX) | |
695 | return -1; | |
9cabb64b | 696 | |
d62a17ae | 697 | return 0; |
9cabb64b | 698 | } |
699 | ||
d62a17ae | 700 | int bgp_map_afi_safi_int2iana(afi_t afi, safi_t safi, iana_afi_t *pkt_afi, |
5c525538 | 701 | iana_safi_t *pkt_safi) |
9cabb64b | 702 | { |
d62a17ae | 703 | /* Map from internal values to IANA values, return error if |
704 | * internal values are bad (unexpected). | |
705 | */ | |
706 | if (afi == AFI_MAX || safi == SAFI_MAX) | |
707 | return -1; | |
708 | *pkt_afi = afi_int2iana(afi); | |
709 | *pkt_safi = safi_int2iana(safi); | |
710 | return 0; | |
9cabb64b | 711 | } |
712 | ||
d62a17ae | 713 | struct peer_af *peer_af_create(struct peer *peer, afi_t afi, safi_t safi) |
3f9c7369 | 714 | { |
d62a17ae | 715 | struct peer_af *af; |
716 | int afid; | |
210ec2a0 | 717 | struct bgp *bgp; |
3f9c7369 | 718 | |
d62a17ae | 719 | if (!peer) |
720 | return NULL; | |
3f9c7369 | 721 | |
d62a17ae | 722 | afid = afindex(afi, safi); |
723 | if (afid >= BGP_AF_MAX) | |
724 | return NULL; | |
3f9c7369 | 725 | |
210ec2a0 | 726 | bgp = peer->bgp; |
d62a17ae | 727 | assert(peer->peer_af_array[afid] == NULL); |
3f9c7369 | 728 | |
d62a17ae | 729 | /* Allocate new peer af */ |
730 | af = XCALLOC(MTYPE_BGP_PEER_AF, sizeof(struct peer_af)); | |
c8560b44 | 731 | |
d62a17ae | 732 | peer->peer_af_array[afid] = af; |
733 | af->afi = afi; | |
734 | af->safi = safi; | |
735 | af->afid = afid; | |
736 | af->peer = peer; | |
210ec2a0 | 737 | bgp->af_peer_count[afi][safi]++; |
3f9c7369 | 738 | |
d62a17ae | 739 | return af; |
3f9c7369 DS |
740 | } |
741 | ||
d62a17ae | 742 | struct peer_af *peer_af_find(struct peer *peer, afi_t afi, safi_t safi) |
3f9c7369 | 743 | { |
d62a17ae | 744 | int afid; |
3f9c7369 | 745 | |
d62a17ae | 746 | if (!peer) |
747 | return NULL; | |
3f9c7369 | 748 | |
d62a17ae | 749 | afid = afindex(afi, safi); |
750 | if (afid >= BGP_AF_MAX) | |
751 | return NULL; | |
3f9c7369 | 752 | |
d62a17ae | 753 | return peer->peer_af_array[afid]; |
3f9c7369 DS |
754 | } |
755 | ||
d62a17ae | 756 | int peer_af_delete(struct peer *peer, afi_t afi, safi_t safi) |
3f9c7369 | 757 | { |
d62a17ae | 758 | struct peer_af *af; |
759 | int afid; | |
210ec2a0 | 760 | struct bgp *bgp; |
3f9c7369 | 761 | |
d62a17ae | 762 | if (!peer) |
763 | return -1; | |
3f9c7369 | 764 | |
d62a17ae | 765 | afid = afindex(afi, safi); |
766 | if (afid >= BGP_AF_MAX) | |
767 | return -1; | |
3f9c7369 | 768 | |
d62a17ae | 769 | af = peer->peer_af_array[afid]; |
770 | if (!af) | |
771 | return -1; | |
3f9c7369 | 772 | |
210ec2a0 | 773 | bgp = peer->bgp; |
d62a17ae | 774 | bgp_stop_announce_route_timer(af); |
3f9c7369 | 775 | |
d62a17ae | 776 | if (PAF_SUBGRP(af)) { |
777 | if (BGP_DEBUG(update_groups, UPDATE_GROUPS)) | |
778 | zlog_debug("u%" PRIu64 ":s%" PRIu64 " remove peer %s", | |
779 | af->subgroup->update_group->id, | |
780 | af->subgroup->id, peer->host); | |
781 | } | |
3f9c7369 | 782 | |
210ec2a0 | 783 | |
d62a17ae | 784 | update_subgroup_remove_peer(af->subgroup, af); |
3f9c7369 | 785 | |
210ec2a0 AS |
786 | if (bgp->af_peer_count[afi][safi]) |
787 | bgp->af_peer_count[afi][safi]--; | |
788 | ||
d62a17ae | 789 | peer->peer_af_array[afid] = NULL; |
790 | XFREE(MTYPE_BGP_PEER_AF, af); | |
791 | return 0; | |
3f9c7369 DS |
792 | } |
793 | ||
eb821189 | 794 | /* Peer comparison function for sorting. */ |
d62a17ae | 795 | int peer_cmp(struct peer *p1, struct peer *p2) |
718e3744 | 796 | { |
d62a17ae | 797 | if (p1->group && !p2->group) |
798 | return -1; | |
0aaa34db | 799 | |
d62a17ae | 800 | if (!p1->group && p2->group) |
801 | return 1; | |
0aaa34db | 802 | |
d62a17ae | 803 | if (p1->group == p2->group) { |
804 | if (p1->conf_if && !p2->conf_if) | |
805 | return -1; | |
0aaa34db | 806 | |
d62a17ae | 807 | if (!p1->conf_if && p2->conf_if) |
808 | return 1; | |
0aaa34db | 809 | |
d62a17ae | 810 | if (p1->conf_if && p2->conf_if) |
811 | return if_cmp_name_func(p1->conf_if, p2->conf_if); | |
812 | } else | |
813 | return strcmp(p1->group->name, p2->group->name); | |
0aaa34db | 814 | |
d62a17ae | 815 | return sockunion_cmp(&p1->su, &p2->su); |
718e3744 | 816 | } |
817 | ||
d8b87afe | 818 | static unsigned int peer_hash_key_make(const void *p) |
dd793e4a | 819 | { |
d8b87afe | 820 | const struct peer *peer = p; |
d62a17ae | 821 | return sockunion_hash(&peer->su); |
dd793e4a DW |
822 | } |
823 | ||
74df8d6d | 824 | static bool peer_hash_same(const void *p1, const void *p2) |
dd793e4a | 825 | { |
d62a17ae | 826 | const struct peer *peer1 = p1; |
827 | const struct peer *peer2 = p2; | |
828 | return (sockunion_same(&peer1->su, &peer2->su) | |
829 | && CHECK_FLAG(peer1->flags, PEER_FLAG_CONFIG_NODE) | |
830 | == CHECK_FLAG(peer2->flags, PEER_FLAG_CONFIG_NODE)); | |
dd793e4a DW |
831 | } |
832 | ||
9fb964de PM |
833 | void peer_flag_inherit(struct peer *peer, uint32_t flag) |
834 | { | |
835 | bool group_val; | |
836 | ||
837 | /* Skip if peer is not a peer-group member. */ | |
838 | if (!peer_group_active(peer)) | |
839 | return; | |
840 | ||
841 | /* Unset override flag to signal inheritance from peer-group. */ | |
842 | UNSET_FLAG(peer->flags_override, flag); | |
843 | ||
844 | /* | |
845 | * Inherit flag state from peer-group. If the flag of the peer-group is | |
846 | * not being inverted, the peer must inherit the inverse of the current | |
847 | * peer-group flag state. | |
848 | */ | |
849 | group_val = CHECK_FLAG(peer->group->conf->flags, flag); | |
850 | if (!CHECK_FLAG(peer->group->conf->flags_invert, flag) | |
851 | && CHECK_FLAG(peer->flags_invert, flag)) | |
852 | COND_FLAG(peer->flags, flag, !group_val); | |
853 | else | |
854 | COND_FLAG(peer->flags, flag, group_val); | |
855 | } | |
856 | ||
d7c0a89a | 857 | int peer_af_flag_check(struct peer *peer, afi_t afi, safi_t safi, uint32_t flag) |
718e3744 | 858 | { |
d62a17ae | 859 | return CHECK_FLAG(peer->af_flags[afi][safi], flag); |
718e3744 | 860 | } |
861 | ||
598ce6bd PM |
862 | void peer_af_flag_inherit(struct peer *peer, afi_t afi, safi_t safi, |
863 | uint32_t flag) | |
88b8ed8d | 864 | { |
527de3dc PM |
865 | bool group_val; |
866 | ||
598ce6bd PM |
867 | /* Skip if peer is not a peer-group member. */ |
868 | if (!peer_group_active(peer)) | |
869 | return; | |
88b8ed8d | 870 | |
598ce6bd PM |
871 | /* Unset override flag to signal inheritance from peer-group. */ |
872 | UNSET_FLAG(peer->af_flags_override[afi][safi], flag); | |
88b8ed8d | 873 | |
527de3dc PM |
874 | /* |
875 | * Inherit flag state from peer-group. If the flag of the peer-group is | |
876 | * not being inverted, the peer must inherit the inverse of the current | |
877 | * peer-group flag state. | |
878 | */ | |
879 | group_val = CHECK_FLAG(peer->group->conf->af_flags[afi][safi], flag); | |
880 | if (!CHECK_FLAG(peer->group->conf->af_flags_invert[afi][safi], flag) | |
881 | && CHECK_FLAG(peer->af_flags_invert[afi][safi], flag)) | |
882 | COND_FLAG(peer->af_flags[afi][safi], flag, !group_val); | |
598ce6bd | 883 | else |
527de3dc | 884 | COND_FLAG(peer->af_flags[afi][safi], flag, group_val); |
598ce6bd | 885 | } |
88b8ed8d | 886 | |
6d85b15b | 887 | /* Check peer's AS number and determines if this peer is IBGP or EBGP */ |
82417ac2 | 888 | static inline bgp_peer_sort_t peer_calc_sort(struct peer *peer) |
718e3744 | 889 | { |
d62a17ae | 890 | struct bgp *bgp; |
718e3744 | 891 | |
d62a17ae | 892 | bgp = peer->bgp; |
718e3744 | 893 | |
d62a17ae | 894 | /* Peer-group */ |
895 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
896 | if (peer->as_type == AS_INTERNAL) | |
897 | return BGP_PEER_IBGP; | |
66b199b2 | 898 | |
d62a17ae | 899 | else if (peer->as_type == AS_EXTERNAL) |
900 | return BGP_PEER_EBGP; | |
66b199b2 | 901 | |
b575a12c A |
902 | else if (peer->as_type == AS_SPECIFIED && peer->as) { |
903 | assert(bgp); | |
d62a17ae | 904 | return (bgp->as == peer->as ? BGP_PEER_IBGP |
905 | : BGP_PEER_EBGP); | |
b575a12c | 906 | } |
66b199b2 | 907 | |
d62a17ae | 908 | else { |
909 | struct peer *peer1; | |
d4f8b537 | 910 | |
911 | assert(peer->group); | |
d62a17ae | 912 | peer1 = listnode_head(peer->group->peer); |
913 | ||
914 | if (peer1) | |
915 | return peer1->sort; | |
916 | } | |
917 | return BGP_PEER_INTERNAL; | |
918 | } | |
919 | ||
920 | /* Normal peer */ | |
921 | if (bgp && CHECK_FLAG(bgp->config, BGP_CONFIG_CONFEDERATION)) { | |
922 | if (peer->local_as == 0) | |
923 | return BGP_PEER_INTERNAL; | |
924 | ||
925 | if (peer->local_as == peer->as) { | |
926 | if (bgp->as == bgp->confed_id) { | |
927 | if (peer->local_as == bgp->as) | |
928 | return BGP_PEER_IBGP; | |
929 | else | |
930 | return BGP_PEER_EBGP; | |
931 | } else { | |
932 | if (peer->local_as == bgp->confed_id) | |
933 | return BGP_PEER_EBGP; | |
934 | else | |
935 | return BGP_PEER_IBGP; | |
936 | } | |
937 | } | |
938 | ||
939 | if (bgp_confederation_peers_check(bgp, peer->as)) | |
940 | return BGP_PEER_CONFED; | |
941 | ||
942 | return BGP_PEER_EBGP; | |
943 | } else { | |
faa16034 DS |
944 | if (peer->as_type == AS_UNSPECIFIED) { |
945 | /* check if in peer-group with AS information */ | |
946 | if (peer->group | |
947 | && (peer->group->conf->as_type != AS_UNSPECIFIED)) { | |
948 | if (peer->group->conf->as_type | |
949 | == AS_SPECIFIED) { | |
950 | if (peer->local_as | |
951 | == peer->group->conf->as) | |
952 | return BGP_PEER_IBGP; | |
953 | else | |
954 | return BGP_PEER_EBGP; | |
955 | } else if (peer->group->conf->as_type | |
956 | == AS_INTERNAL) | |
957 | return BGP_PEER_IBGP; | |
958 | else | |
959 | return BGP_PEER_EBGP; | |
960 | } | |
961 | /* no AS information anywhere, let caller know */ | |
962 | return BGP_PEER_UNSPECIFIED; | |
963 | } else if (peer->as_type != AS_SPECIFIED) | |
d62a17ae | 964 | return (peer->as_type == AS_INTERNAL ? BGP_PEER_IBGP |
965 | : BGP_PEER_EBGP); | |
966 | ||
967 | return (peer->local_as == 0 | |
968 | ? BGP_PEER_INTERNAL | |
969 | : peer->local_as == peer->as ? BGP_PEER_IBGP | |
970 | : BGP_PEER_EBGP); | |
971 | } | |
718e3744 | 972 | } |
973 | ||
6d85b15b | 974 | /* Calculate and cache the peer "sort" */ |
d62a17ae | 975 | bgp_peer_sort_t peer_sort(struct peer *peer) |
976 | { | |
977 | peer->sort = peer_calc_sort(peer); | |
978 | return peer->sort; | |
979 | } | |
980 | ||
981 | static void peer_free(struct peer *peer) | |
982 | { | |
dcc68b5e MS |
983 | afi_t afi; |
984 | safi_t safi; | |
985 | ||
d62a17ae | 986 | assert(peer->status == Deleted); |
987 | ||
988 | QOBJ_UNREG(peer); | |
989 | ||
990 | /* this /ought/ to have been done already through bgp_stop earlier, | |
991 | * but just to be sure.. | |
992 | */ | |
993 | bgp_timer_set(peer); | |
424ab01d QY |
994 | bgp_reads_off(peer); |
995 | bgp_writes_off(peer); | |
996 | assert(!peer->t_write); | |
997 | assert(!peer->t_read); | |
d62a17ae | 998 | BGP_EVENT_FLUSH(peer); |
999 | ||
424ab01d QY |
1000 | pthread_mutex_destroy(&peer->io_mtx); |
1001 | ||
d62a17ae | 1002 | /* Free connected nexthop, if present */ |
1003 | if (CHECK_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE) | |
1004 | && !peer_dynamic_neighbor(peer)) | |
1005 | bgp_delete_connected_nexthop(family2afi(peer->su.sa.sa_family), | |
1006 | peer); | |
1007 | ||
1008 | XFREE(MTYPE_PEER_TX_SHUTDOWN_MSG, peer->tx_shutdown_message); | |
1009 | ||
1010 | if (peer->desc) { | |
1011 | XFREE(MTYPE_PEER_DESC, peer->desc); | |
1012 | peer->desc = NULL; | |
1013 | } | |
1014 | ||
1015 | /* Free allocated host character. */ | |
1016 | if (peer->host) { | |
1017 | XFREE(MTYPE_BGP_PEER_HOST, peer->host); | |
1018 | peer->host = NULL; | |
1019 | } | |
1020 | ||
1021 | if (peer->domainname) { | |
1022 | XFREE(MTYPE_BGP_PEER_HOST, peer->domainname); | |
1023 | peer->domainname = NULL; | |
1024 | } | |
1025 | ||
1026 | if (peer->ifname) { | |
1027 | XFREE(MTYPE_BGP_PEER_IFNAME, peer->ifname); | |
1028 | peer->ifname = NULL; | |
1029 | } | |
1030 | ||
1031 | /* Update source configuration. */ | |
1032 | if (peer->update_source) { | |
1033 | sockunion_free(peer->update_source); | |
1034 | peer->update_source = NULL; | |
1035 | } | |
1036 | ||
1037 | if (peer->update_if) { | |
1038 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); | |
1039 | peer->update_if = NULL; | |
1040 | } | |
1041 | ||
0a22ddfb | 1042 | XFREE(MTYPE_TMP, peer->notify.data); |
d62a17ae | 1043 | memset(&peer->notify, 0, sizeof(struct bgp_notify)); |
1044 | ||
e208c8f9 DS |
1045 | if (peer->clear_node_queue) |
1046 | work_queue_free_and_null(&peer->clear_node_queue); | |
d62a17ae | 1047 | |
1048 | bgp_sync_delete(peer); | |
1049 | ||
1050 | if (peer->conf_if) { | |
1051 | XFREE(MTYPE_PEER_CONF_IF, peer->conf_if); | |
1052 | peer->conf_if = NULL; | |
1053 | } | |
1054 | ||
1055 | bfd_info_free(&(peer->bfd_info)); | |
1056 | ||
dcc68b5e MS |
1057 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
1058 | for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++) { | |
1059 | bgp_addpath_set_peer_type(peer, afi, safi, | |
1060 | BGP_ADDPATH_NONE); | |
1061 | } | |
1062 | } | |
1063 | ||
d62a17ae | 1064 | bgp_unlock(peer->bgp); |
1065 | ||
1066 | memset(peer, 0, sizeof(struct peer)); | |
1067 | ||
1068 | XFREE(MTYPE_BGP_PEER, peer); | |
1069 | } | |
1070 | ||
200df115 | 1071 | /* increase reference count on a struct peer */ |
d62a17ae | 1072 | struct peer *peer_lock_with_caller(const char *name, struct peer *peer) |
200df115 | 1073 | { |
d62a17ae | 1074 | assert(peer && (peer->lock >= 0)); |
28066f4b DS |
1075 | |
1076 | #if 0 | |
1077 | zlog_debug("%s peer_lock %p %d", name, peer, peer->lock); | |
1078 | #endif | |
d62a17ae | 1079 | |
1080 | peer->lock++; | |
1081 | ||
1082 | return peer; | |
200df115 | 1083 | } |
1084 | ||
1085 | /* decrease reference count on a struct peer | |
1086 | * struct peer is freed and NULL returned if last reference | |
1087 | */ | |
d62a17ae | 1088 | struct peer *peer_unlock_with_caller(const char *name, struct peer *peer) |
200df115 | 1089 | { |
d62a17ae | 1090 | assert(peer && (peer->lock > 0)); |
28066f4b DS |
1091 | |
1092 | #if 0 | |
1093 | zlog_debug("%s peer_unlock %p %d", name, peer, peer->lock); | |
1094 | #endif | |
200df115 | 1095 | |
d62a17ae | 1096 | peer->lock--; |
1097 | ||
1098 | if (peer->lock == 0) { | |
1099 | peer_free(peer); | |
1100 | return NULL; | |
1101 | } | |
1102 | ||
1103 | return peer; | |
200df115 | 1104 | } |
794b37d5 | 1105 | /* BGP GR changes */ |
1106 | ||
1107 | int bgp_global_gr_init(struct bgp *bgp) | |
1108 | { | |
1109 | if (BGP_DEBUG(graceful_restart, GRACEFUL_RESTART)) | |
1110 | zlog_debug("%s called ..", __func__); | |
1111 | ||
1112 | int local_GLOBAL_GR_FSM[GLOBAL_MODE][EVENT_CMD] = { | |
1113 | /* GLOBAL_HELPER Mode */ | |
1114 | { | |
1115 | /*Event -> */ | |
1116 | /*GLOBAL_GR_cmd*/ /*no_Global_GR_cmd*/ | |
1117 | GLOBAL_GR, GLOBAL_INVALID, | |
1118 | /*GLOBAL_DISABLE_cmd*/ /*no_Global_Disable_cmd*/ | |
1119 | GLOBAL_DISABLE, GLOBAL_INVALID | |
1120 | }, | |
1121 | /* GLOBAL_GR Mode */ | |
1122 | { | |
1123 | /*Event -> */ | |
1124 | /*GLOBAL_GR_cmd*/ /*no_Global_GR_cmd*/ | |
1125 | GLOBAL_INVALID, GLOBAL_HELPER, | |
1126 | /*GLOBAL_DISABLE_cmd*/ /*no_Global_Disable_cmd*/ | |
1127 | GLOBAL_DISABLE, GLOBAL_INVALID | |
1128 | }, | |
1129 | /* GLOBAL_DISABLE Mode */ | |
1130 | { | |
1131 | /*Event -> */ | |
1132 | /*GLOBAL_GR_cmd */ /*no_Global_GR_cmd*/ | |
1133 | GLOBAL_GR, GLOBAL_INVALID, | |
1134 | /*GLOBAL_DISABLE_cmd*//*no_Global_Disable_cmd*/ | |
1135 | GLOBAL_INVALID, GLOBAL_HELPER | |
1136 | }, | |
1137 | /* GLOBAL_INVALID Mode */ | |
1138 | { | |
1139 | /*Event -> */ | |
1140 | /*GLOBAL_GR_cmd*/ /*no_Global_GR_cmd*/ | |
1141 | GLOBAL_INVALID, GLOBAL_INVALID, | |
1142 | /*GLOBAL_DISABLE_cmd*/ /*no_Global_Disable_cmd*/ | |
1143 | GLOBAL_INVALID, GLOBAL_INVALID | |
1144 | } | |
1145 | }; | |
1146 | memcpy(bgp->GLOBAL_GR_FSM, local_GLOBAL_GR_FSM, | |
1147 | sizeof(local_GLOBAL_GR_FSM)); | |
1148 | ||
1149 | bgp->global_gr_present_state = GLOBAL_HELPER; | |
1150 | ||
1151 | return BGP_GR_SUCCESS; | |
1152 | } | |
1153 | ||
1154 | int bgp_peer_gr_init(struct peer *peer) | |
1155 | { | |
1156 | if (BGP_DEBUG(graceful_restart, GRACEFUL_RESTART)) | |
1157 | zlog_debug("%s called ..", __func__); | |
1158 | ||
1159 | struct bgp_peer_gr local_Peer_GR_FSM[PEER_MODE][PEER_EVENT_CMD] = { | |
1160 | { | |
1161 | /* PEER_HELPER Mode */ | |
1162 | /* Event-> */ /* PEER_GR_CMD */ /* NO_PEER_GR_CMD */ | |
1163 | { PEER_GR, bgp_peer_gr_action }, {PEER_INVALID, NULL }, | |
1164 | /* Event-> */ /* PEER_DISABLE_cmd */ /* NO_PEER_DISABLE_CMD */ | |
1165 | {PEER_DISABLE, bgp_peer_gr_action }, {PEER_INVALID, NULL }, | |
1166 | /* Event-> */ /* PEER_HELPER_cmd */ /* NO_PEER_HELPER_CMD */ | |
1167 | { PEER_INVALID, NULL }, {PEER_GLOBAL_INHERIT, | |
1168 | bgp_peer_gr_action } | |
1169 | }, | |
1170 | { | |
1171 | /* PEER_GR Mode */ | |
1172 | /* Event-> */ /* PEER_GR_CMD */ /* NO_PEER_GR_CMD */ | |
1173 | { PEER_INVALID, NULL }, { PEER_GLOBAL_INHERIT, | |
1174 | bgp_peer_gr_action }, | |
1175 | /* Event-> */ /* PEER_DISABLE_cmd */ /* NO_PEER_DISABLE_CMD */ | |
1176 | {PEER_DISABLE, bgp_peer_gr_action }, { PEER_INVALID, NULL }, | |
1177 | /* Event-> */ /* PEER_HELPER_cmd */ /* NO_PEER_HELPER_CMD */ | |
1178 | { PEER_HELPER, bgp_peer_gr_action }, { PEER_INVALID, NULL } | |
1179 | }, | |
1180 | { | |
1181 | /* PEER_DISABLE Mode */ | |
1182 | /* Event-> */ /* PEER_GR_CMD */ /* NO_PEER_GR_CMD */ | |
1183 | { PEER_GR, bgp_peer_gr_action }, { PEER_INVALID, NULL }, | |
1184 | /* Event-> */ /* PEER_DISABLE_cmd */ /* NO_PEER_DISABLE_CMD */ | |
1185 | { PEER_INVALID, NULL }, { PEER_GLOBAL_INHERIT, | |
1186 | bgp_peer_gr_action }, | |
1187 | /* Event-> */ /* PEER_HELPER_cmd */ /* NO_PEER_HELPER_CMD */ | |
1188 | { PEER_HELPER, bgp_peer_gr_action }, { PEER_INVALID, NULL } | |
1189 | }, | |
1190 | { | |
1191 | /* PEER_INVALID Mode */ | |
1192 | /* Event-> */ /* PEER_GR_CMD */ /* NO_PEER_GR_CMD */ | |
1193 | { PEER_INVALID, NULL }, { PEER_INVALID, NULL }, | |
1194 | /* Event-> */ /* PEER_DISABLE_cmd */ /* NO_PEER_DISABLE_CMD */ | |
1195 | { PEER_INVALID, NULL }, { PEER_INVALID, NULL }, | |
1196 | /* Event-> */ /* PEER_HELPER_cmd */ /* NO_PEER_HELPER_CMD */ | |
1197 | { PEER_INVALID, NULL }, { PEER_INVALID, NULL }, | |
1198 | }, | |
1199 | { | |
1200 | /* PEER_GLOBAL_INHERIT Mode */ | |
1201 | /* Event-> */ /* PEER_GR_CMD */ /* NO_PEER_GR_CMD */ | |
1202 | { PEER_GR, bgp_peer_gr_action }, { PEER_INVALID, NULL }, | |
1203 | /* Event-> */ /* PEER_DISABLE_cmd */ /* NO_PEER_DISABLE_CMD */ | |
1204 | { PEER_DISABLE, bgp_peer_gr_action}, { PEER_INVALID, NULL }, | |
1205 | /* Event-> */ /* PEER_HELPER_cmd */ /* NO_PEER_HELPER_CMD */ | |
1206 | { PEER_HELPER, bgp_peer_gr_action }, { PEER_INVALID, NULL } | |
1207 | } | |
1208 | }; | |
1209 | memcpy(&peer->PEER_GR_FSM, local_Peer_GR_FSM, | |
1210 | sizeof(local_Peer_GR_FSM)); | |
1211 | peer->peer_gr_present_state = PEER_GLOBAL_INHERIT; | |
1212 | bgp_peer_move_to_gr_mode(peer, PEER_GLOBAL_INHERIT); | |
1213 | ||
1214 | return BGP_GR_SUCCESS; | |
1215 | } | |
1ff9a340 | 1216 | |
200df115 | 1217 | /* Allocate new peer object, implicitely locked. */ |
d62a17ae | 1218 | struct peer *peer_new(struct bgp *bgp) |
1219 | { | |
1220 | afi_t afi; | |
1221 | safi_t safi; | |
1222 | struct peer *peer; | |
1223 | struct servent *sp; | |
1224 | ||
1225 | /* bgp argument is absolutely required */ | |
1226 | assert(bgp); | |
1227 | if (!bgp) | |
1228 | return NULL; | |
1229 | ||
1230 | /* Allocate new peer. */ | |
1231 | peer = XCALLOC(MTYPE_BGP_PEER, sizeof(struct peer)); | |
1232 | ||
1233 | /* Set default value. */ | |
1234 | peer->fd = -1; | |
1235 | peer->v_start = BGP_INIT_START_TIMER; | |
5d5393b9 | 1236 | peer->v_connect = bgp->default_connect_retry; |
d62a17ae | 1237 | peer->status = Idle; |
1238 | peer->ostatus = Idle; | |
1239 | peer->cur_event = peer->last_event = peer->last_major_event = 0; | |
92375c91 | 1240 | peer->bgp = bgp_lock(bgp); |
d62a17ae | 1241 | peer = peer_lock(peer); /* initial reference */ |
d62a17ae | 1242 | peer->password = NULL; |
1243 | ||
27c05d4d | 1244 | /* Set default flags. */ |
05c7a1cc | 1245 | FOREACH_AFI_SAFI (afi, safi) { |
d8a9922d DS |
1246 | SET_FLAG(peer->af_flags[afi][safi], PEER_FLAG_SEND_COMMUNITY); |
1247 | SET_FLAG(peer->af_flags[afi][safi], | |
1248 | PEER_FLAG_SEND_EXT_COMMUNITY); | |
1249 | SET_FLAG(peer->af_flags[afi][safi], | |
1250 | PEER_FLAG_SEND_LARGE_COMMUNITY); | |
1251 | ||
1252 | SET_FLAG(peer->af_flags_invert[afi][safi], | |
1253 | PEER_FLAG_SEND_COMMUNITY); | |
1254 | SET_FLAG(peer->af_flags_invert[afi][safi], | |
1255 | PEER_FLAG_SEND_EXT_COMMUNITY); | |
1256 | SET_FLAG(peer->af_flags_invert[afi][safi], | |
1257 | PEER_FLAG_SEND_LARGE_COMMUNITY); | |
dcc68b5e | 1258 | peer->addpath_type[afi][safi] = BGP_ADDPATH_NONE; |
05c7a1cc | 1259 | } |
637315fc MK |
1260 | |
1261 | /* set nexthop-unchanged for l2vpn evpn by default */ | |
1262 | SET_FLAG(peer->af_flags[AFI_L2VPN][SAFI_EVPN], | |
1263 | PEER_FLAG_NEXTHOP_UNCHANGED); | |
1264 | ||
d62a17ae | 1265 | SET_FLAG(peer->sflags, PEER_STATUS_CAPABILITY_OPEN); |
718e3744 | 1266 | |
794b37d5 | 1267 | /* Initialize per peer bgp GR FSM */ |
1268 | bgp_peer_gr_init(peer); | |
1269 | ||
d62a17ae | 1270 | /* Create buffers. */ |
424ab01d | 1271 | peer->ibuf = stream_fifo_new(); |
d62a17ae | 1272 | peer->obuf = stream_fifo_new(); |
424ab01d | 1273 | pthread_mutex_init(&peer->io_mtx, NULL); |
0a91ff55 | 1274 | |
424ab01d | 1275 | /* We use a larger buffer for peer->obuf_work in the event that: |
d62a17ae | 1276 | * - We RX a BGP_UPDATE where the attributes alone are just |
1277 | * under BGP_MAX_PACKET_SIZE | |
1278 | * - The user configures an outbound route-map that does many as-path | |
09f6d019 QY |
1279 | * prepends or adds many communities. At most they can have |
1280 | * CMD_ARGC_MAX args in a route-map so there is a finite limit on how | |
1281 | * large they can make the attributes. | |
d62a17ae | 1282 | * |
1283 | * Having a buffer with BGP_MAX_PACKET_SIZE_OVERFLOW allows us to avoid | |
09f6d019 QY |
1284 | * bounds checking for every single attribute as we construct an |
1285 | * UPDATE. | |
d62a17ae | 1286 | */ |
424ab01d | 1287 | peer->obuf_work = |
d62a17ae | 1288 | stream_new(BGP_MAX_PACKET_SIZE + BGP_MAX_PACKET_SIZE_OVERFLOW); |
74ffbfe6 QY |
1289 | peer->ibuf_work = |
1290 | ringbuf_new(BGP_MAX_PACKET_SIZE * BGP_READ_PACKET_MAX); | |
1291 | ||
d62a17ae | 1292 | peer->scratch = stream_new(BGP_MAX_PACKET_SIZE); |
718e3744 | 1293 | |
d62a17ae | 1294 | bgp_sync_init(peer); |
718e3744 | 1295 | |
d62a17ae | 1296 | /* Get service port number. */ |
1297 | sp = getservbyname("bgp", "tcp"); | |
1298 | peer->port = (sp == NULL) ? BGP_PORT_DEFAULT : ntohs(sp->s_port); | |
718e3744 | 1299 | |
d62a17ae | 1300 | QOBJ_REG(peer, peer); |
1301 | return peer; | |
718e3744 | 1302 | } |
1303 | ||
1ff9a340 DS |
1304 | /* |
1305 | * This function is invoked when a duplicate peer structure associated with | |
1306 | * a neighbor is being deleted. If this about-to-be-deleted structure is | |
1307 | * the one with all the config, then we have to copy over the info. | |
1308 | */ | |
d62a17ae | 1309 | void peer_xfer_config(struct peer *peer_dst, struct peer *peer_src) |
1310 | { | |
1311 | struct peer_af *paf; | |
1312 | afi_t afi; | |
1313 | safi_t safi; | |
1314 | int afidx; | |
1315 | ||
1316 | assert(peer_src); | |
1317 | assert(peer_dst); | |
1318 | ||
1319 | /* The following function is used by both peer group config copy to | |
1320 | * individual peer and when we transfer config | |
1321 | */ | |
1322 | if (peer_src->change_local_as) | |
1323 | peer_dst->change_local_as = peer_src->change_local_as; | |
1324 | ||
1325 | /* peer flags apply */ | |
1326 | peer_dst->flags = peer_src->flags; | |
1327 | peer_dst->cap = peer_src->cap; | |
d62a17ae | 1328 | |
1329 | peer_dst->local_as = peer_src->local_as; | |
d62a17ae | 1330 | peer_dst->port = peer_src->port; |
82417ac2 | 1331 | (void)peer_sort(peer_dst); |
d62a17ae | 1332 | peer_dst->rmap_type = peer_src->rmap_type; |
1333 | ||
1334 | /* Timers */ | |
1335 | peer_dst->holdtime = peer_src->holdtime; | |
1336 | peer_dst->keepalive = peer_src->keepalive; | |
1337 | peer_dst->connect = peer_src->connect; | |
1338 | peer_dst->v_holdtime = peer_src->v_holdtime; | |
1339 | peer_dst->v_keepalive = peer_src->v_keepalive; | |
1340 | peer_dst->routeadv = peer_src->routeadv; | |
1341 | peer_dst->v_routeadv = peer_src->v_routeadv; | |
1342 | ||
1343 | /* password apply */ | |
1344 | if (peer_src->password && !peer_dst->password) | |
1345 | peer_dst->password = | |
1346 | XSTRDUP(MTYPE_PEER_PASSWORD, peer_src->password); | |
1347 | ||
05c7a1cc QY |
1348 | FOREACH_AFI_SAFI (afi, safi) { |
1349 | peer_dst->afc[afi][safi] = peer_src->afc[afi][safi]; | |
1350 | peer_dst->af_flags[afi][safi] = peer_src->af_flags[afi][safi]; | |
1351 | peer_dst->allowas_in[afi][safi] = | |
1352 | peer_src->allowas_in[afi][safi]; | |
1353 | peer_dst->weight[afi][safi] = peer_src->weight[afi][safi]; | |
dcc68b5e MS |
1354 | peer_dst->addpath_type[afi][safi] = |
1355 | peer_src->addpath_type[afi][safi]; | |
05c7a1cc | 1356 | } |
d62a17ae | 1357 | |
1358 | for (afidx = BGP_AF_START; afidx < BGP_AF_MAX; afidx++) { | |
1359 | paf = peer_src->peer_af_array[afidx]; | |
1360 | if (paf != NULL) | |
1361 | peer_af_create(peer_dst, paf->afi, paf->safi); | |
1362 | } | |
1363 | ||
1364 | /* update-source apply */ | |
1365 | if (peer_src->update_source) { | |
1366 | if (peer_dst->update_source) | |
1367 | sockunion_free(peer_dst->update_source); | |
1368 | if (peer_dst->update_if) { | |
1369 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer_dst->update_if); | |
1370 | peer_dst->update_if = NULL; | |
1371 | } | |
1372 | peer_dst->update_source = | |
1373 | sockunion_dup(peer_src->update_source); | |
1374 | } else if (peer_src->update_if) { | |
0a22ddfb | 1375 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer_dst->update_if); |
d62a17ae | 1376 | if (peer_dst->update_source) { |
1377 | sockunion_free(peer_dst->update_source); | |
1378 | peer_dst->update_source = NULL; | |
1379 | } | |
1380 | peer_dst->update_if = | |
1381 | XSTRDUP(MTYPE_PEER_UPDATE_SOURCE, peer_src->update_if); | |
1382 | } | |
1383 | ||
1384 | if (peer_src->ifname) { | |
0a22ddfb | 1385 | XFREE(MTYPE_BGP_PEER_IFNAME, peer_dst->ifname); |
d62a17ae | 1386 | |
1387 | peer_dst->ifname = | |
1388 | XSTRDUP(MTYPE_BGP_PEER_IFNAME, peer_src->ifname); | |
1389 | } | |
1390 | } | |
1391 | ||
1392 | static int bgp_peer_conf_if_to_su_update_v4(struct peer *peer, | |
1393 | struct interface *ifp) | |
1394 | { | |
1395 | struct connected *ifc; | |
1396 | struct prefix p; | |
d7c0a89a | 1397 | uint32_t addr; |
d62a17ae | 1398 | struct listnode *node; |
1399 | ||
1400 | /* If our IPv4 address on the interface is /30 or /31, we can derive the | |
1401 | * IPv4 address of the other end. | |
1402 | */ | |
1403 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, ifc)) { | |
1404 | if (ifc->address && (ifc->address->family == AF_INET)) { | |
1405 | PREFIX_COPY_IPV4(&p, CONNECTED_PREFIX(ifc)); | |
1406 | if (p.prefixlen == 30) { | |
1407 | peer->su.sa.sa_family = AF_INET; | |
1408 | addr = ntohl(p.u.prefix4.s_addr); | |
1409 | if (addr % 4 == 1) | |
1410 | peer->su.sin.sin_addr.s_addr = | |
1411 | htonl(addr + 1); | |
1412 | else if (addr % 4 == 2) | |
1413 | peer->su.sin.sin_addr.s_addr = | |
1414 | htonl(addr - 1); | |
8ffedcea | 1415 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
d62a17ae | 1416 | peer->su.sin.sin_len = |
1417 | sizeof(struct sockaddr_in); | |
8ffedcea | 1418 | #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */ |
d62a17ae | 1419 | return 1; |
1420 | } else if (p.prefixlen == 31) { | |
1421 | peer->su.sa.sa_family = AF_INET; | |
1422 | addr = ntohl(p.u.prefix4.s_addr); | |
1423 | if (addr % 2 == 0) | |
1424 | peer->su.sin.sin_addr.s_addr = | |
1425 | htonl(addr + 1); | |
1426 | else | |
1427 | peer->su.sin.sin_addr.s_addr = | |
1428 | htonl(addr - 1); | |
8ffedcea | 1429 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
d62a17ae | 1430 | peer->su.sin.sin_len = |
1431 | sizeof(struct sockaddr_in); | |
8ffedcea | 1432 | #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */ |
d62a17ae | 1433 | return 1; |
1434 | } else if (bgp_debug_neighbor_events(peer)) | |
1435 | zlog_debug( | |
1436 | "%s: IPv4 interface address is not /30 or /31, v4 session not started", | |
1437 | peer->conf_if); | |
1438 | } | |
1439 | } | |
1440 | ||
1441 | return 0; | |
1442 | } | |
1443 | ||
1444 | static int bgp_peer_conf_if_to_su_update_v6(struct peer *peer, | |
1445 | struct interface *ifp) | |
1446 | { | |
1447 | struct nbr_connected *ifc_nbr; | |
1448 | ||
1449 | /* Have we learnt the peer's IPv6 link-local address? */ | |
1450 | if (ifp->nbr_connected | |
1451 | && (ifc_nbr = listnode_head(ifp->nbr_connected))) { | |
1452 | peer->su.sa.sa_family = AF_INET6; | |
1453 | memcpy(&peer->su.sin6.sin6_addr, &ifc_nbr->address->u.prefix, | |
1454 | sizeof(struct in6_addr)); | |
a80beece | 1455 | #ifdef SIN6_LEN |
d62a17ae | 1456 | peer->su.sin6.sin6_len = sizeof(struct sockaddr_in6); |
a80beece | 1457 | #endif |
d62a17ae | 1458 | peer->su.sin6.sin6_scope_id = ifp->ifindex; |
1459 | return 1; | |
1460 | } | |
8ffedcea | 1461 | |
d62a17ae | 1462 | return 0; |
89ca90fa | 1463 | } |
1464 | ||
1465 | /* | |
1466 | * Set or reset the peer address socketunion structure based on the | |
1467 | * learnt/derived peer address. If the address has changed, update the | |
1468 | * password on the listen socket, if needed. | |
1469 | */ | |
d62a17ae | 1470 | void bgp_peer_conf_if_to_su_update(struct peer *peer) |
1471 | { | |
1472 | struct interface *ifp; | |
1473 | int prev_family; | |
1474 | int peer_addr_updated = 0; | |
1475 | ||
1476 | if (!peer->conf_if) | |
1477 | return; | |
1478 | ||
d12b745c DS |
1479 | /* |
1480 | * Our peer structure is stored in the bgp->peerhash | |
1481 | * release it before we modify anything. | |
1482 | */ | |
1483 | hash_release(peer->bgp->peerhash, peer); | |
1484 | ||
d62a17ae | 1485 | prev_family = peer->su.sa.sa_family; |
a36898e7 | 1486 | if ((ifp = if_lookup_by_name(peer->conf_if, peer->bgp->vrf_id))) { |
d62a17ae | 1487 | peer->ifp = ifp; |
1488 | /* If BGP unnumbered is not "v6only", we first see if we can | |
1489 | * derive the | |
1490 | * peer's IPv4 address. | |
1491 | */ | |
1492 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_IFPEER_V6ONLY)) | |
1493 | peer_addr_updated = | |
1494 | bgp_peer_conf_if_to_su_update_v4(peer, ifp); | |
1495 | ||
1496 | /* If "v6only" or we can't derive peer's IPv4 address, see if | |
1497 | * we've | |
1498 | * learnt the peer's IPv6 link-local address. This is from the | |
1499 | * source | |
1500 | * IPv6 address in router advertisement. | |
1501 | */ | |
1502 | if (!peer_addr_updated) | |
1503 | peer_addr_updated = | |
1504 | bgp_peer_conf_if_to_su_update_v6(peer, ifp); | |
1505 | } | |
1506 | /* If we could derive the peer address, we may need to install the | |
1507 | * password | |
1508 | * configured for the peer, if any, on the listen socket. Otherwise, | |
1509 | * mark | |
1510 | * that peer's address is not available and uninstall the password, if | |
1511 | * needed. | |
1512 | */ | |
1513 | if (peer_addr_updated) { | |
a14810f4 PM |
1514 | if (CHECK_FLAG(peer->flags, PEER_FLAG_PASSWORD) |
1515 | && prev_family == AF_UNSPEC) | |
d62a17ae | 1516 | bgp_md5_set(peer); |
1517 | } else { | |
a14810f4 PM |
1518 | if (CHECK_FLAG(peer->flags, PEER_FLAG_PASSWORD) |
1519 | && prev_family != AF_UNSPEC) | |
d62a17ae | 1520 | bgp_md5_unset(peer); |
1521 | peer->su.sa.sa_family = AF_UNSPEC; | |
1522 | memset(&peer->su.sin6.sin6_addr, 0, sizeof(struct in6_addr)); | |
1523 | } | |
1524 | ||
d12b745c DS |
1525 | /* |
1526 | * Since our su changed we need to del/add peer to the peerhash | |
1527 | */ | |
d62a17ae | 1528 | hash_get(peer->bgp->peerhash, peer, hash_alloc_intern); |
a80beece DS |
1529 | } |
1530 | ||
318cac96 DW |
1531 | static void bgp_recalculate_afi_safi_bestpaths(struct bgp *bgp, afi_t afi, |
1532 | safi_t safi) | |
1533 | { | |
1534 | struct bgp_node *rn, *nrn; | |
67009e22 | 1535 | struct bgp_table *table; |
318cac96 DW |
1536 | |
1537 | for (rn = bgp_table_top(bgp->rib[afi][safi]); rn; | |
1538 | rn = bgp_route_next(rn)) { | |
67009e22 DS |
1539 | table = bgp_node_get_bgp_table_info(rn); |
1540 | if (table != NULL) { | |
318cac96 DW |
1541 | /* Special handling for 2-level routing |
1542 | * tables. */ | |
a4d82a8a | 1543 | if (safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP |
318cac96 | 1544 | || safi == SAFI_EVPN) { |
67009e22 | 1545 | for (nrn = bgp_table_top(table); |
a4d82a8a PZ |
1546 | nrn; nrn = bgp_route_next(nrn)) |
1547 | bgp_process(bgp, nrn, afi, safi); | |
318cac96 DW |
1548 | } else |
1549 | bgp_process(bgp, rn, afi, safi); | |
1550 | } | |
1551 | } | |
1552 | } | |
1553 | ||
06370dac DW |
1554 | /* Force a bestpath recalculation for all prefixes. This is used |
1555 | * when 'bgp bestpath' commands are entered. | |
1556 | */ | |
d62a17ae | 1557 | void bgp_recalculate_all_bestpaths(struct bgp *bgp) |
1558 | { | |
1559 | afi_t afi; | |
1560 | safi_t safi; | |
d62a17ae | 1561 | |
05c7a1cc QY |
1562 | FOREACH_AFI_SAFI (afi, safi) { |
1563 | bgp_recalculate_afi_safi_bestpaths(bgp, afi, safi); | |
d62a17ae | 1564 | } |
06370dac DW |
1565 | } |
1566 | ||
19bd3dff DS |
1567 | /* |
1568 | * Create new BGP peer. | |
1569 | * | |
1570 | * conf_if and su are mutually exclusive if configuring from the cli. | |
1571 | * If we are handing a doppelganger, then we *must* pass in both | |
1572 | * the original peer's su and conf_if, so that we can appropriately | |
1573 | * track the bgp->peerhash( ie we don't want to remove the current | |
1574 | * one from the config ). | |
1575 | */ | |
d62a17ae | 1576 | struct peer *peer_create(union sockunion *su, const char *conf_if, |
1577 | struct bgp *bgp, as_t local_as, as_t remote_as, | |
1578 | int as_type, afi_t afi, safi_t safi, | |
1579 | struct peer_group *group) | |
1580 | { | |
1581 | int active; | |
1582 | struct peer *peer; | |
1583 | char buf[SU_ADDRSTRLEN]; | |
1584 | ||
1585 | peer = peer_new(bgp); | |
1586 | if (conf_if) { | |
1587 | peer->conf_if = XSTRDUP(MTYPE_PEER_CONF_IF, conf_if); | |
19bd3dff DS |
1588 | if (su) |
1589 | peer->su = *su; | |
1590 | else | |
1591 | bgp_peer_conf_if_to_su_update(peer); | |
0a22ddfb | 1592 | XFREE(MTYPE_BGP_PEER_HOST, peer->host); |
d62a17ae | 1593 | peer->host = XSTRDUP(MTYPE_BGP_PEER_HOST, conf_if); |
1594 | } else if (su) { | |
1595 | peer->su = *su; | |
1596 | sockunion2str(su, buf, SU_ADDRSTRLEN); | |
0a22ddfb | 1597 | XFREE(MTYPE_BGP_PEER_HOST, peer->host); |
d62a17ae | 1598 | peer->host = XSTRDUP(MTYPE_BGP_PEER_HOST, buf); |
1599 | } | |
1600 | peer->local_as = local_as; | |
1601 | peer->as = remote_as; | |
1602 | peer->as_type = as_type; | |
1603 | peer->local_id = bgp->router_id; | |
1604 | peer->v_holdtime = bgp->default_holdtime; | |
1605 | peer->v_keepalive = bgp->default_keepalive; | |
b90a8e13 PM |
1606 | peer->v_routeadv = (peer_sort(peer) == BGP_PEER_IBGP) |
1607 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
1608 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 1609 | |
1610 | peer = peer_lock(peer); /* bgp peer list reference */ | |
1611 | peer->group = group; | |
1612 | listnode_add_sort(bgp->peer, peer); | |
1613 | hash_get(bgp->peerhash, peer, hash_alloc_intern); | |
1614 | ||
4961a5a2 | 1615 | /* Adjust update-group coalesce timer heuristics for # peers. */ |
37a333fe | 1616 | if (bgp->heuristic_coalesce) { |
14b8641a QY |
1617 | long ct = BGP_DEFAULT_SUBGROUP_COALESCE_TIME |
1618 | + (bgp->peer->count | |
1619 | * BGP_PEER_ADJUST_SUBGROUP_COALESCE_TIME); | |
1620 | bgp->coalesce_time = MIN(BGP_MAX_SUBGROUP_COALESCE_TIME, ct); | |
1621 | } | |
4961a5a2 | 1622 | |
d62a17ae | 1623 | active = peer_active(peer); |
05912a17 DD |
1624 | if (!active) { |
1625 | if (peer->su.sa.sa_family == AF_UNSPEC) | |
1626 | peer->last_reset = PEER_DOWN_NBR_ADDR; | |
1627 | else | |
1628 | peer->last_reset = PEER_DOWN_NOAFI_ACTIVATED; | |
1629 | } | |
d62a17ae | 1630 | |
1631 | /* Last read and reset time set */ | |
1632 | peer->readtime = peer->resettime = bgp_clock(); | |
1633 | ||
1634 | /* Default TTL set. */ | |
a0903cd2 | 1635 | peer->ttl = (peer->sort == BGP_PEER_IBGP) ? MAXTTL : BGP_DEFAULT_TTL; |
d62a17ae | 1636 | |
1637 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); | |
1638 | ||
1639 | if (afi && safi) { | |
1640 | peer->afc[afi][safi] = 1; | |
1641 | peer_af_create(peer, afi, safi); | |
1642 | } | |
1643 | ||
f26845f9 QY |
1644 | /* auto shutdown if configured */ |
1645 | if (bgp->autoshutdown) | |
1646 | peer_flag_set(peer, PEER_FLAG_SHUTDOWN); | |
d62a17ae | 1647 | /* Set up peer's events and timers. */ |
f26845f9 | 1648 | else if (!active && peer_active(peer)) |
d62a17ae | 1649 | bgp_timer_set(peer); |
1650 | ||
794b37d5 | 1651 | bgp_peer_gr_flags_update(peer); |
d62a17ae | 1652 | return peer; |
718e3744 | 1653 | } |
1654 | ||
dd793e4a | 1655 | /* Make accept BGP peer. This function is only called from the test code */ |
d62a17ae | 1656 | struct peer *peer_create_accept(struct bgp *bgp) |
eb821189 | 1657 | { |
d62a17ae | 1658 | struct peer *peer; |
eb821189 | 1659 | |
d62a17ae | 1660 | peer = peer_new(bgp); |
1ff9a340 | 1661 | |
d62a17ae | 1662 | peer = peer_lock(peer); /* bgp peer list reference */ |
1663 | listnode_add_sort(bgp->peer, peer); | |
eb821189 | 1664 | |
d62a17ae | 1665 | return peer; |
eb821189 | 1666 | } |
1667 | ||
318cac96 DW |
1668 | /* |
1669 | * Return true if we have a peer configured to use this afi/safi | |
1670 | */ | |
1671 | int bgp_afi_safi_peer_exists(struct bgp *bgp, afi_t afi, safi_t safi) | |
1672 | { | |
1673 | struct listnode *node; | |
1674 | struct peer *peer; | |
1675 | ||
1676 | for (ALL_LIST_ELEMENTS_RO(bgp->peer, node, peer)) { | |
1677 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE)) | |
1678 | continue; | |
1679 | ||
1680 | if (peer->afc[afi][safi]) | |
1681 | return 1; | |
1682 | } | |
1683 | ||
1684 | return 0; | |
1685 | } | |
1686 | ||
718e3744 | 1687 | /* Change peer's AS number. */ |
d62a17ae | 1688 | void peer_as_change(struct peer *peer, as_t as, int as_specified) |
1689 | { | |
1690 | bgp_peer_sort_t type; | |
d62a17ae | 1691 | |
1692 | /* Stop peer. */ | |
1693 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
1694 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
1695 | peer->last_reset = PEER_DOWN_REMOTE_AS_CHANGE; | |
1696 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
1697 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
1698 | } else | |
1699 | bgp_session_reset(peer); | |
1700 | } | |
1701 | type = peer_sort(peer); | |
1702 | peer->as = as; | |
1703 | peer->as_type = as_specified; | |
1704 | ||
1705 | if (bgp_config_check(peer->bgp, BGP_CONFIG_CONFEDERATION) | |
1706 | && !bgp_confederation_peers_check(peer->bgp, as) | |
1707 | && peer->bgp->as != as) | |
1708 | peer->local_as = peer->bgp->confed_id; | |
1709 | else | |
1710 | peer->local_as = peer->bgp->as; | |
1711 | ||
1712 | /* Advertisement-interval reset */ | |
b90a8e13 PM |
1713 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_ROUTEADV)) { |
1714 | peer->v_routeadv = (peer_sort(peer) == BGP_PEER_IBGP) | |
1715 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
1716 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 1717 | } |
b90a8e13 | 1718 | |
d62a17ae | 1719 | /* TTL reset */ |
1720 | if (peer_sort(peer) == BGP_PEER_IBGP) | |
1721 | peer->ttl = MAXTTL; | |
1722 | else if (type == BGP_PEER_IBGP) | |
a0903cd2 | 1723 | peer->ttl = BGP_DEFAULT_TTL; |
d62a17ae | 1724 | |
1725 | /* reflector-client reset */ | |
1726 | if (peer_sort(peer) != BGP_PEER_IBGP) { | |
1727 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_UNICAST], | |
1728 | PEER_FLAG_REFLECTOR_CLIENT); | |
1729 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_MULTICAST], | |
1730 | PEER_FLAG_REFLECTOR_CLIENT); | |
1731 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_LABELED_UNICAST], | |
1732 | PEER_FLAG_REFLECTOR_CLIENT); | |
1733 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_MPLS_VPN], | |
1734 | PEER_FLAG_REFLECTOR_CLIENT); | |
1735 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_ENCAP], | |
1736 | PEER_FLAG_REFLECTOR_CLIENT); | |
7c40bf39 | 1737 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_FLOWSPEC], |
1738 | PEER_FLAG_REFLECTOR_CLIENT); | |
d62a17ae | 1739 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_UNICAST], |
1740 | PEER_FLAG_REFLECTOR_CLIENT); | |
1741 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_MULTICAST], | |
1742 | PEER_FLAG_REFLECTOR_CLIENT); | |
1743 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_LABELED_UNICAST], | |
1744 | PEER_FLAG_REFLECTOR_CLIENT); | |
1745 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_MPLS_VPN], | |
1746 | PEER_FLAG_REFLECTOR_CLIENT); | |
1747 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_ENCAP], | |
1748 | PEER_FLAG_REFLECTOR_CLIENT); | |
7c40bf39 | 1749 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_FLOWSPEC], |
1750 | PEER_FLAG_REFLECTOR_CLIENT); | |
d62a17ae | 1751 | UNSET_FLAG(peer->af_flags[AFI_L2VPN][SAFI_EVPN], |
1752 | PEER_FLAG_REFLECTOR_CLIENT); | |
1753 | } | |
1754 | ||
1755 | /* local-as reset */ | |
1756 | if (peer_sort(peer) != BGP_PEER_EBGP) { | |
1757 | peer->change_local_as = 0; | |
a14810f4 PM |
1758 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS); |
1759 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
1760 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
d62a17ae | 1761 | } |
718e3744 | 1762 | } |
1763 | ||
1764 | /* If peer does not exist, create new one. If peer already exists, | |
1765 | set AS number to the peer. */ | |
d62a17ae | 1766 | int peer_remote_as(struct bgp *bgp, union sockunion *su, const char *conf_if, |
1767 | as_t *as, int as_type, afi_t afi, safi_t safi) | |
1768 | { | |
1769 | struct peer *peer; | |
1770 | as_t local_as; | |
1771 | ||
1772 | if (conf_if) | |
1773 | peer = peer_lookup_by_conf_if(bgp, conf_if); | |
1774 | else | |
1775 | peer = peer_lookup(bgp, su); | |
1776 | ||
1777 | if (peer) { | |
1778 | /* Not allowed for a dynamic peer. */ | |
1779 | if (peer_dynamic_neighbor(peer)) { | |
1780 | *as = peer->as; | |
1781 | return BGP_ERR_INVALID_FOR_DYNAMIC_PEER; | |
1782 | } | |
718e3744 | 1783 | |
d62a17ae | 1784 | /* When this peer is a member of peer-group. */ |
1785 | if (peer->group) { | |
faa16034 DS |
1786 | /* peer-group already has AS number/internal/external */ |
1787 | if (peer->group->conf->as | |
1788 | || peer->group->conf->as_type) { | |
d62a17ae | 1789 | /* Return peer group's AS number. */ |
1790 | *as = peer->group->conf->as; | |
1791 | return BGP_ERR_PEER_GROUP_MEMBER; | |
1792 | } | |
faa16034 DS |
1793 | |
1794 | bgp_peer_sort_t peer_sort_type = | |
1795 | peer_sort(peer->group->conf); | |
1796 | ||
1797 | /* Explicit AS numbers used, compare AS numbers */ | |
1798 | if (as_type == AS_SPECIFIED) { | |
1799 | if (((peer_sort_type == BGP_PEER_IBGP) | |
1800 | && (bgp->as != *as)) | |
1801 | || ((peer_sort_type == BGP_PEER_EBGP) | |
1802 | && (bgp->as == *as))) { | |
d62a17ae | 1803 | *as = peer->as; |
1804 | return BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT; | |
1805 | } | |
1806 | } else { | |
faa16034 DS |
1807 | /* internal/external used, compare as-types */ |
1808 | if (((peer_sort_type == BGP_PEER_IBGP) | |
1809 | && (as_type != AS_INTERNAL)) | |
1810 | || ((peer_sort_type == BGP_PEER_EBGP) | |
1811 | && (as_type != AS_EXTERNAL))) { | |
d62a17ae | 1812 | *as = peer->as; |
1813 | return BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT; | |
1814 | } | |
1815 | } | |
1816 | } | |
93406d87 | 1817 | |
d62a17ae | 1818 | /* Existing peer's AS number change. */ |
1819 | if (((peer->as_type == AS_SPECIFIED) && peer->as != *as) | |
1820 | || (peer->as_type != as_type)) | |
1821 | peer_as_change(peer, *as, as_type); | |
1822 | } else { | |
1823 | if (conf_if) | |
1824 | return BGP_ERR_NO_INTERFACE_CONFIG; | |
1825 | ||
1826 | /* If the peer is not part of our confederation, and its not an | |
1827 | iBGP peer then spoof the source AS */ | |
1828 | if (bgp_config_check(bgp, BGP_CONFIG_CONFEDERATION) | |
1829 | && !bgp_confederation_peers_check(bgp, *as) | |
1830 | && bgp->as != *as) | |
1831 | local_as = bgp->confed_id; | |
1832 | else | |
1833 | local_as = bgp->as; | |
1834 | ||
1835 | /* If this is IPv4 unicast configuration and "no bgp default | |
1836 | ipv4-unicast" is specified. */ | |
1837 | ||
1838 | if (bgp_flag_check(bgp, BGP_FLAG_NO_DEFAULT_IPV4) | |
1839 | && afi == AFI_IP && safi == SAFI_UNICAST) | |
1840 | peer_create(su, conf_if, bgp, local_as, *as, as_type, 0, | |
1841 | 0, NULL); | |
1842 | else | |
1843 | peer_create(su, conf_if, bgp, local_as, *as, as_type, | |
1844 | afi, safi, NULL); | |
1845 | } | |
718e3744 | 1846 | |
d62a17ae | 1847 | return 0; |
1848 | } | |
718e3744 | 1849 | |
9790f44f DS |
1850 | static void peer_group2peer_config_copy_af(struct peer_group *group, |
1851 | struct peer *peer, afi_t afi, | |
1852 | safi_t safi) | |
1853 | { | |
1854 | int in = FILTER_IN; | |
1855 | int out = FILTER_OUT; | |
4c391142 | 1856 | uint32_t flags_tmp; |
e7103a96 PM |
1857 | uint32_t pflags_ovrd; |
1858 | uint8_t *pfilter_ovrd; | |
9790f44f | 1859 | struct peer *conf; |
9790f44f DS |
1860 | |
1861 | conf = group->conf; | |
e7103a96 PM |
1862 | pflags_ovrd = peer->af_flags_override[afi][safi]; |
1863 | pfilter_ovrd = &peer->filter_override[afi][safi][in]; | |
9790f44f DS |
1864 | |
1865 | /* peer af_flags apply */ | |
4c391142 PM |
1866 | flags_tmp = conf->af_flags[afi][safi] & ~pflags_ovrd; |
1867 | flags_tmp ^= conf->af_flags_invert[afi][safi] | |
1868 | ^ peer->af_flags_invert[afi][safi]; | |
1869 | flags_tmp &= ~pflags_ovrd; | |
1870 | ||
1871 | UNSET_FLAG(peer->af_flags[afi][safi], ~pflags_ovrd); | |
1872 | SET_FLAG(peer->af_flags[afi][safi], flags_tmp); | |
1873 | SET_FLAG(peer->af_flags_invert[afi][safi], | |
1874 | conf->af_flags_invert[afi][safi]); | |
9790f44f DS |
1875 | |
1876 | /* maximum-prefix */ | |
e7103a96 PM |
1877 | if (!CHECK_FLAG(pflags_ovrd, PEER_FLAG_MAX_PREFIX)) { |
1878 | PEER_ATTR_INHERIT(peer, group, pmax[afi][safi]); | |
1879 | PEER_ATTR_INHERIT(peer, group, pmax_threshold[afi][safi]); | |
1880 | PEER_ATTR_INHERIT(peer, group, pmax_restart[afi][safi]); | |
1881 | } | |
9790f44f DS |
1882 | |
1883 | /* allowas-in */ | |
e7103a96 PM |
1884 | if (!CHECK_FLAG(pflags_ovrd, PEER_FLAG_ALLOWAS_IN)) |
1885 | PEER_ATTR_INHERIT(peer, group, allowas_in[afi][safi]); | |
9790f44f DS |
1886 | |
1887 | /* weight */ | |
e7103a96 PM |
1888 | if (!CHECK_FLAG(pflags_ovrd, PEER_FLAG_WEIGHT)) |
1889 | PEER_ATTR_INHERIT(peer, group, weight[afi][safi]); | |
9790f44f DS |
1890 | |
1891 | /* default-originate route-map */ | |
e7103a96 PM |
1892 | if (!CHECK_FLAG(pflags_ovrd, PEER_FLAG_DEFAULT_ORIGINATE)) { |
1893 | PEER_STR_ATTR_INHERIT(peer, group, default_rmap[afi][safi].name, | |
1894 | MTYPE_ROUTE_MAP_NAME); | |
1895 | PEER_ATTR_INHERIT(peer, group, default_rmap[afi][safi].map); | |
9790f44f DS |
1896 | } |
1897 | ||
1898 | /* inbound filter apply */ | |
e7103a96 PM |
1899 | if (!CHECK_FLAG(pfilter_ovrd[in], PEER_FT_DISTRIBUTE_LIST)) { |
1900 | PEER_STR_ATTR_INHERIT(peer, group, | |
1901 | filter[afi][safi].dlist[in].name, | |
1902 | MTYPE_BGP_FILTER_NAME); | |
1903 | PEER_ATTR_INHERIT(peer, group, | |
1904 | filter[afi][safi].dlist[in].alist); | |
9790f44f DS |
1905 | } |
1906 | ||
e7103a96 PM |
1907 | if (!CHECK_FLAG(pfilter_ovrd[in], PEER_FT_PREFIX_LIST)) { |
1908 | PEER_STR_ATTR_INHERIT(peer, group, | |
1909 | filter[afi][safi].plist[in].name, | |
1910 | MTYPE_BGP_FILTER_NAME); | |
1911 | PEER_ATTR_INHERIT(peer, group, | |
1912 | filter[afi][safi].plist[in].plist); | |
9790f44f DS |
1913 | } |
1914 | ||
e7103a96 PM |
1915 | if (!CHECK_FLAG(pfilter_ovrd[in], PEER_FT_FILTER_LIST)) { |
1916 | PEER_STR_ATTR_INHERIT(peer, group, | |
1917 | filter[afi][safi].aslist[in].name, | |
1918 | MTYPE_BGP_FILTER_NAME); | |
1919 | PEER_ATTR_INHERIT(peer, group, | |
1920 | filter[afi][safi].aslist[in].aslist); | |
9790f44f DS |
1921 | } |
1922 | ||
e7103a96 PM |
1923 | if (!CHECK_FLAG(pfilter_ovrd[RMAP_IN], PEER_FT_ROUTE_MAP)) { |
1924 | PEER_STR_ATTR_INHERIT(peer, group, | |
1925 | filter[afi][safi].map[in].name, | |
1926 | MTYPE_BGP_FILTER_NAME); | |
1927 | PEER_ATTR_INHERIT(peer, group, | |
1928 | filter[afi][safi].map[RMAP_IN].map); | |
9790f44f DS |
1929 | } |
1930 | ||
1931 | /* outbound filter apply */ | |
e7103a96 PM |
1932 | if (!CHECK_FLAG(pfilter_ovrd[out], PEER_FT_DISTRIBUTE_LIST)) { |
1933 | PEER_STR_ATTR_INHERIT(peer, group, | |
1934 | filter[afi][safi].dlist[out].name, | |
1935 | MTYPE_BGP_FILTER_NAME); | |
1936 | PEER_ATTR_INHERIT(peer, group, | |
1937 | filter[afi][safi].dlist[out].alist); | |
9790f44f DS |
1938 | } |
1939 | ||
e7103a96 PM |
1940 | if (!CHECK_FLAG(pfilter_ovrd[out], PEER_FT_PREFIX_LIST)) { |
1941 | PEER_STR_ATTR_INHERIT(peer, group, | |
1942 | filter[afi][safi].plist[out].name, | |
1943 | MTYPE_BGP_FILTER_NAME); | |
1944 | PEER_ATTR_INHERIT(peer, group, | |
1945 | filter[afi][safi].plist[out].plist); | |
9790f44f DS |
1946 | } |
1947 | ||
e7103a96 PM |
1948 | if (!CHECK_FLAG(pfilter_ovrd[out], PEER_FT_FILTER_LIST)) { |
1949 | PEER_STR_ATTR_INHERIT(peer, group, | |
1950 | filter[afi][safi].aslist[out].name, | |
1951 | MTYPE_BGP_FILTER_NAME); | |
1952 | PEER_ATTR_INHERIT(peer, group, | |
1953 | filter[afi][safi].aslist[out].aslist); | |
1954 | } | |
1955 | ||
1956 | if (!CHECK_FLAG(pfilter_ovrd[RMAP_OUT], PEER_FT_ROUTE_MAP)) { | |
1957 | PEER_STR_ATTR_INHERIT(peer, group, | |
1958 | filter[afi][safi].map[RMAP_OUT].name, | |
1959 | MTYPE_BGP_FILTER_NAME); | |
1960 | PEER_ATTR_INHERIT(peer, group, | |
1961 | filter[afi][safi].map[RMAP_OUT].map); | |
1962 | } | |
1963 | ||
1964 | /* nondirectional filter apply */ | |
1965 | if (!CHECK_FLAG(pfilter_ovrd[0], PEER_FT_UNSUPPRESS_MAP)) { | |
1966 | PEER_STR_ATTR_INHERIT(peer, group, filter[afi][safi].usmap.name, | |
1967 | MTYPE_BGP_FILTER_NAME); | |
1968 | PEER_ATTR_INHERIT(peer, group, filter[afi][safi].usmap.map); | |
9790f44f | 1969 | } |
dcc68b5e MS |
1970 | |
1971 | if (peer->addpath_type[afi][safi] == BGP_ADDPATH_NONE) { | |
1972 | peer->addpath_type[afi][safi] = conf->addpath_type[afi][safi]; | |
1973 | bgp_addpath_type_changed(conf->bgp); | |
1974 | } | |
9790f44f DS |
1975 | } |
1976 | ||
1977 | static int peer_activate_af(struct peer *peer, afi_t afi, safi_t safi) | |
d62a17ae | 1978 | { |
1979 | int active; | |
9bf904cc | 1980 | struct peer *other; |
718e3744 | 1981 | |
d62a17ae | 1982 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
e50f7cfd | 1983 | flog_err(EC_BGP_PEER_GROUP, "%s was called for peer-group %s", |
1c50c1c0 | 1984 | __func__, peer->host); |
d62a17ae | 1985 | return 1; |
1986 | } | |
3f9c7369 | 1987 | |
d62a17ae | 1988 | /* Do not activate a peer for both SAFI_UNICAST and SAFI_LABELED_UNICAST |
1989 | */ | |
1990 | if ((safi == SAFI_UNICAST && peer->afc[afi][SAFI_LABELED_UNICAST]) | |
1991 | || (safi == SAFI_LABELED_UNICAST && peer->afc[afi][SAFI_UNICAST])) | |
1992 | return BGP_ERR_PEER_SAFI_CONFLICT; | |
1993 | ||
1994 | /* Nothing to do if we've already activated this peer */ | |
1995 | if (peer->afc[afi][safi]) | |
1996 | return 0; | |
1997 | ||
1998 | if (peer_af_create(peer, afi, safi) == NULL) | |
1999 | return 1; | |
2000 | ||
2001 | active = peer_active(peer); | |
2002 | peer->afc[afi][safi] = 1; | |
2003 | ||
9790f44f | 2004 | if (peer->group) |
a4d82a8a | 2005 | peer_group2peer_config_copy_af(peer->group, peer, afi, safi); |
9790f44f | 2006 | |
d62a17ae | 2007 | if (!active && peer_active(peer)) { |
2008 | bgp_timer_set(peer); | |
2009 | } else { | |
2010 | if (peer->status == Established) { | |
2011 | if (CHECK_FLAG(peer->cap, PEER_CAP_DYNAMIC_RCV)) { | |
2012 | peer->afc_adv[afi][safi] = 1; | |
2013 | bgp_capability_send(peer, afi, safi, | |
2014 | CAPABILITY_CODE_MP, | |
2015 | CAPABILITY_ACTION_SET); | |
2016 | if (peer->afc_recv[afi][safi]) { | |
2017 | peer->afc_nego[afi][safi] = 1; | |
2018 | bgp_announce_route(peer, afi, safi); | |
2019 | } | |
2020 | } else { | |
2021 | peer->last_reset = PEER_DOWN_AF_ACTIVATE; | |
2022 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
2023 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
2024 | } | |
2025 | } | |
64c1a9b5 DS |
2026 | if (peer->status == OpenSent || peer->status == OpenConfirm) { |
2027 | peer->last_reset = PEER_DOWN_AF_ACTIVATE; | |
2028 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
2029 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
2030 | } | |
9bf904cc DS |
2031 | /* |
2032 | * If we are turning on a AFI/SAFI locally and we've | |
2033 | * started bringing a peer up, we need to tell | |
2034 | * the other peer to restart because we might loose | |
2035 | * configuration here because when the doppelganger | |
2036 | * gets to a established state due to how | |
2037 | * we resolve we could just overwrite the afi/safi | |
2038 | * activation. | |
2039 | */ | |
2040 | other = peer->doppelganger; | |
2041 | if (other | |
2042 | && (other->status == OpenSent | |
2043 | || other->status == OpenConfirm)) { | |
2044 | other->last_reset = PEER_DOWN_AF_ACTIVATE; | |
2045 | bgp_notify_send(other, BGP_NOTIFY_CEASE, | |
2046 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
2047 | } | |
d62a17ae | 2048 | } |
04b6bdc0 | 2049 | |
d62a17ae | 2050 | return 0; |
2051 | } | |
9e08021c | 2052 | |
d62a17ae | 2053 | /* Activate the peer or peer group for specified AFI and SAFI. */ |
2054 | int peer_activate(struct peer *peer, afi_t afi, safi_t safi) | |
2055 | { | |
2056 | int ret = 0; | |
2057 | struct peer_group *group; | |
2058 | struct listnode *node, *nnode; | |
2059 | struct peer *tmp_peer; | |
318cac96 | 2060 | struct bgp *bgp; |
d62a17ae | 2061 | |
2062 | /* Nothing to do if we've already activated this peer */ | |
2063 | if (peer->afc[afi][safi]) | |
2064 | return ret; | |
2065 | ||
318cac96 DW |
2066 | bgp = peer->bgp; |
2067 | ||
d62a17ae | 2068 | /* This is a peer-group so activate all of the members of the |
2069 | * peer-group as well */ | |
2070 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
2071 | ||
2072 | /* Do not activate a peer for both SAFI_UNICAST and | |
2073 | * SAFI_LABELED_UNICAST */ | |
2074 | if ((safi == SAFI_UNICAST | |
2075 | && peer->afc[afi][SAFI_LABELED_UNICAST]) | |
2076 | || (safi == SAFI_LABELED_UNICAST | |
2077 | && peer->afc[afi][SAFI_UNICAST])) | |
2078 | return BGP_ERR_PEER_SAFI_CONFLICT; | |
2079 | ||
2080 | peer->afc[afi][safi] = 1; | |
2081 | group = peer->group; | |
2082 | ||
2083 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, tmp_peer)) { | |
9790f44f | 2084 | ret |= peer_activate_af(tmp_peer, afi, safi); |
d62a17ae | 2085 | } |
2086 | } else { | |
9790f44f | 2087 | ret |= peer_activate_af(peer, afi, safi); |
d62a17ae | 2088 | } |
718e3744 | 2089 | |
a4d82a8a PZ |
2090 | /* If this is the first peer to be activated for this |
2091 | * afi/labeled-unicast recalc bestpaths to trigger label allocation */ | |
2092 | if (safi == SAFI_LABELED_UNICAST | |
2093 | && !bgp->allocate_mpls_labels[afi][SAFI_UNICAST]) { | |
318cac96 DW |
2094 | |
2095 | if (BGP_DEBUG(zebra, ZEBRA)) | |
4cb5e18b | 2096 | zlog_debug( |
a4d82a8a | 2097 | "peer(s) are now active for labeled-unicast, allocate MPLS labels"); |
318cac96 DW |
2098 | |
2099 | bgp->allocate_mpls_labels[afi][SAFI_UNICAST] = 1; | |
2100 | bgp_recalculate_afi_safi_bestpaths(bgp, afi, SAFI_UNICAST); | |
2101 | } | |
2102 | ||
b98f7728 PG |
2103 | if (safi == SAFI_FLOWSPEC) { |
2104 | /* connect to table manager */ | |
6818e7e5 | 2105 | bgp_zebra_init_tm_connect(bgp); |
b98f7728 | 2106 | } |
d62a17ae | 2107 | return ret; |
718e3744 | 2108 | } |
6b0655a2 | 2109 | |
d62a17ae | 2110 | static int non_peergroup_deactivate_af(struct peer *peer, afi_t afi, |
2111 | safi_t safi) | |
718e3744 | 2112 | { |
d62a17ae | 2113 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
e50f7cfd | 2114 | flog_err(EC_BGP_PEER_GROUP, "%s was called for peer-group %s", |
1c50c1c0 | 2115 | __func__, peer->host); |
d62a17ae | 2116 | return 1; |
2117 | } | |
718e3744 | 2118 | |
d62a17ae | 2119 | /* Nothing to do if we've already deactivated this peer */ |
2120 | if (!peer->afc[afi][safi]) | |
2121 | return 0; | |
718e3744 | 2122 | |
d62a17ae | 2123 | /* De-activate the address family configuration. */ |
2124 | peer->afc[afi][safi] = 0; | |
718e3744 | 2125 | |
d62a17ae | 2126 | if (peer_af_delete(peer, afi, safi) != 0) { |
e50f7cfd | 2127 | flog_err(EC_BGP_PEER_DELETE, |
1c50c1c0 QY |
2128 | "couldn't delete af structure for peer %s", |
2129 | peer->host); | |
d62a17ae | 2130 | return 1; |
2131 | } | |
718e3744 | 2132 | |
d62a17ae | 2133 | if (peer->status == Established) { |
2134 | if (CHECK_FLAG(peer->cap, PEER_CAP_DYNAMIC_RCV)) { | |
2135 | peer->afc_adv[afi][safi] = 0; | |
2136 | peer->afc_nego[afi][safi] = 0; | |
2137 | ||
2138 | if (peer_active_nego(peer)) { | |
2139 | bgp_capability_send(peer, afi, safi, | |
2140 | CAPABILITY_CODE_MP, | |
2141 | CAPABILITY_ACTION_UNSET); | |
2142 | bgp_clear_route(peer, afi, safi); | |
2143 | peer->pcount[afi][safi] = 0; | |
2144 | } else { | |
2145 | peer->last_reset = PEER_DOWN_NEIGHBOR_DELETE; | |
2146 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
2147 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
2148 | } | |
2149 | } else { | |
2150 | peer->last_reset = PEER_DOWN_NEIGHBOR_DELETE; | |
2151 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
2152 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
2153 | } | |
2154 | } | |
718e3744 | 2155 | |
d62a17ae | 2156 | return 0; |
2157 | } | |
718e3744 | 2158 | |
d62a17ae | 2159 | int peer_deactivate(struct peer *peer, afi_t afi, safi_t safi) |
718e3744 | 2160 | { |
d62a17ae | 2161 | int ret = 0; |
2162 | struct peer_group *group; | |
2163 | struct peer *tmp_peer; | |
2164 | struct listnode *node, *nnode; | |
318cac96 | 2165 | struct bgp *bgp; |
718e3744 | 2166 | |
d62a17ae | 2167 | /* Nothing to do if we've already de-activated this peer */ |
2168 | if (!peer->afc[afi][safi]) | |
2169 | return ret; | |
718e3744 | 2170 | |
d62a17ae | 2171 | /* This is a peer-group so de-activate all of the members of the |
2172 | * peer-group as well */ | |
2173 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
2174 | peer->afc[afi][safi] = 0; | |
2175 | group = peer->group; | |
718e3744 | 2176 | |
d62a17ae | 2177 | if (peer_af_delete(peer, afi, safi) != 0) { |
e50f7cfd | 2178 | flog_err(EC_BGP_PEER_DELETE, |
1c50c1c0 QY |
2179 | "couldn't delete af structure for peer %s", |
2180 | peer->host); | |
d62a17ae | 2181 | } |
0299c004 | 2182 | |
d62a17ae | 2183 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, tmp_peer)) { |
2184 | ret |= non_peergroup_deactivate_af(tmp_peer, afi, safi); | |
2185 | } | |
2186 | } else { | |
2187 | ret |= non_peergroup_deactivate_af(peer, afi, safi); | |
2188 | } | |
718e3744 | 2189 | |
318cac96 DW |
2190 | bgp = peer->bgp; |
2191 | ||
a4d82a8a PZ |
2192 | /* If this is the last peer to be deactivated for this |
2193 | * afi/labeled-unicast recalc bestpaths to trigger label deallocation */ | |
2194 | if (safi == SAFI_LABELED_UNICAST | |
2195 | && bgp->allocate_mpls_labels[afi][SAFI_UNICAST] | |
2196 | && !bgp_afi_safi_peer_exists(bgp, afi, safi)) { | |
318cac96 DW |
2197 | |
2198 | if (BGP_DEBUG(zebra, ZEBRA)) | |
4cb5e18b | 2199 | zlog_debug( |
a4d82a8a | 2200 | "peer(s) are no longer active for labeled-unicast, deallocate MPLS labels"); |
318cac96 DW |
2201 | |
2202 | bgp->allocate_mpls_labels[afi][SAFI_UNICAST] = 0; | |
2203 | bgp_recalculate_afi_safi_bestpaths(bgp, afi, SAFI_UNICAST); | |
2204 | } | |
d62a17ae | 2205 | return ret; |
2206 | } | |
718e3744 | 2207 | |
d62a17ae | 2208 | int peer_afc_set(struct peer *peer, afi_t afi, safi_t safi, int enable) |
2209 | { | |
2210 | if (enable) | |
2211 | return peer_activate(peer, afi, safi); | |
2212 | else | |
2213 | return peer_deactivate(peer, afi, safi); | |
718e3744 | 2214 | } |
2215 | ||
d62a17ae | 2216 | static void peer_nsf_stop(struct peer *peer) |
718e3744 | 2217 | { |
d62a17ae | 2218 | afi_t afi; |
2219 | safi_t safi; | |
718e3744 | 2220 | |
d62a17ae | 2221 | UNSET_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT); |
2222 | UNSET_FLAG(peer->sflags, PEER_STATUS_NSF_MODE); | |
718e3744 | 2223 | |
d62a17ae | 2224 | for (afi = AFI_IP; afi < AFI_MAX; afi++) |
a08ca0a7 | 2225 | for (safi = SAFI_UNICAST; safi <= SAFI_MPLS_VPN; safi++) |
d62a17ae | 2226 | peer->nsf[afi][safi] = 0; |
2227 | ||
2228 | if (peer->t_gr_restart) { | |
2229 | BGP_TIMER_OFF(peer->t_gr_restart); | |
2230 | if (bgp_debug_neighbor_events(peer)) | |
2231 | zlog_debug("%s graceful restart timer stopped", | |
2232 | peer->host); | |
1ff9a340 | 2233 | } |
d62a17ae | 2234 | if (peer->t_gr_stale) { |
2235 | BGP_TIMER_OFF(peer->t_gr_stale); | |
2236 | if (bgp_debug_neighbor_events(peer)) | |
2237 | zlog_debug( | |
2238 | "%s graceful restart stalepath timer stopped", | |
2239 | peer->host); | |
2240 | } | |
2241 | bgp_clear_route_all(peer); | |
2242 | } | |
718e3744 | 2243 | |
d62a17ae | 2244 | /* Delete peer from confguration. |
2245 | * | |
2246 | * The peer is moved to a dead-end "Deleted" neighbour-state, to allow | |
2247 | * it to "cool off" and refcounts to hit 0, at which state it is freed. | |
2248 | * | |
2249 | * This function /should/ take care to be idempotent, to guard against | |
2250 | * it being called multiple times through stray events that come in | |
2251 | * that happen to result in this function being called again. That | |
2252 | * said, getting here for a "Deleted" peer is a bug in the neighbour | |
2253 | * FSM. | |
2254 | */ | |
2255 | int peer_delete(struct peer *peer) | |
2256 | { | |
2257 | int i; | |
2258 | afi_t afi; | |
2259 | safi_t safi; | |
2260 | struct bgp *bgp; | |
2261 | struct bgp_filter *filter; | |
2262 | struct listnode *pn; | |
2263 | int accept_peer; | |
f14e6fdb | 2264 | |
d62a17ae | 2265 | assert(peer->status != Deleted); |
718e3744 | 2266 | |
d62a17ae | 2267 | bgp = peer->bgp; |
2268 | accept_peer = CHECK_FLAG(peer->sflags, PEER_STATUS_ACCEPT_PEER); | |
080b97f2 | 2269 | |
0a6469e5 | 2270 | bgp_keepalives_off(peer); |
424ab01d QY |
2271 | bgp_reads_off(peer); |
2272 | bgp_writes_off(peer); | |
2273 | assert(!CHECK_FLAG(peer->thread_flags, PEER_THREAD_WRITES_ON)); | |
2274 | assert(!CHECK_FLAG(peer->thread_flags, PEER_THREAD_READS_ON)); | |
0a6469e5 | 2275 | assert(!CHECK_FLAG(peer->thread_flags, PEER_THREAD_KEEPALIVES_ON)); |
424ab01d | 2276 | |
d62a17ae | 2277 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT)) |
2278 | peer_nsf_stop(peer); | |
718e3744 | 2279 | |
d62a17ae | 2280 | SET_FLAG(peer->flags, PEER_FLAG_DELETE); |
718e3744 | 2281 | |
e8ba5293 PG |
2282 | bgp_bfd_deregister_peer(peer); |
2283 | ||
d62a17ae | 2284 | /* If this peer belongs to peer group, clear up the |
2285 | relationship. */ | |
2286 | if (peer->group) { | |
2287 | if (peer_dynamic_neighbor(peer)) | |
2288 | peer_drop_dynamic_neighbor(peer); | |
718e3744 | 2289 | |
d62a17ae | 2290 | if ((pn = listnode_lookup(peer->group->peer, peer))) { |
2291 | peer = peer_unlock( | |
2292 | peer); /* group->peer list reference */ | |
2293 | list_delete_node(peer->group->peer, pn); | |
2294 | } | |
2295 | peer->group = NULL; | |
2296 | } | |
718e3744 | 2297 | |
d62a17ae | 2298 | /* Withdraw all information from routing table. We can not use |
2299 | * BGP_EVENT_ADD (peer, BGP_Stop) at here. Because the event is | |
2300 | * executed after peer structure is deleted. | |
2301 | */ | |
2302 | peer->last_reset = PEER_DOWN_NEIGHBOR_DELETE; | |
2303 | bgp_stop(peer); | |
2304 | UNSET_FLAG(peer->flags, PEER_FLAG_DELETE); | |
2305 | ||
2306 | if (peer->doppelganger) { | |
2307 | peer->doppelganger->doppelganger = NULL; | |
2308 | peer->doppelganger = NULL; | |
2309 | } | |
718e3744 | 2310 | |
d62a17ae | 2311 | UNSET_FLAG(peer->sflags, PEER_STATUS_ACCEPT_PEER); |
2312 | bgp_fsm_change_status(peer, Deleted); | |
718e3744 | 2313 | |
d62a17ae | 2314 | /* Remove from NHT */ |
2315 | if (CHECK_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE)) | |
2316 | bgp_unlink_nexthop_by_peer(peer); | |
1ff9a340 | 2317 | |
d62a17ae | 2318 | /* Password configuration */ |
a14810f4 | 2319 | if (CHECK_FLAG(peer->flags, PEER_FLAG_PASSWORD)) { |
d62a17ae | 2320 | XFREE(MTYPE_PEER_PASSWORD, peer->password); |
1ff9a340 | 2321 | |
d62a17ae | 2322 | if (!accept_peer && !BGP_PEER_SU_UNSPEC(peer) |
2323 | && !CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
2324 | bgp_md5_unset(peer); | |
1ff9a340 | 2325 | } |
718e3744 | 2326 | |
d62a17ae | 2327 | bgp_timer_set(peer); /* stops all timers for Deleted */ |
718e3744 | 2328 | |
d62a17ae | 2329 | /* Delete from all peer list. */ |
2330 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP) | |
2331 | && (pn = listnode_lookup(bgp->peer, peer))) { | |
2332 | peer_unlock(peer); /* bgp peer list reference */ | |
2333 | list_delete_node(bgp->peer, pn); | |
2334 | hash_release(bgp->peerhash, peer); | |
2335 | } | |
718e3744 | 2336 | |
d62a17ae | 2337 | /* Buffers. */ |
2338 | if (peer->ibuf) { | |
424ab01d | 2339 | stream_fifo_free(peer->ibuf); |
d62a17ae | 2340 | peer->ibuf = NULL; |
2341 | } | |
f14e6fdb | 2342 | |
d62a17ae | 2343 | if (peer->obuf) { |
2344 | stream_fifo_free(peer->obuf); | |
2345 | peer->obuf = NULL; | |
2346 | } | |
f14e6fdb | 2347 | |
424ab01d | 2348 | if (peer->ibuf_work) { |
74ffbfe6 | 2349 | ringbuf_del(peer->ibuf_work); |
424ab01d QY |
2350 | peer->ibuf_work = NULL; |
2351 | } | |
2352 | ||
2353 | if (peer->obuf_work) { | |
2354 | stream_free(peer->obuf_work); | |
2355 | peer->obuf_work = NULL; | |
d62a17ae | 2356 | } |
f14e6fdb | 2357 | |
d62a17ae | 2358 | if (peer->scratch) { |
2359 | stream_free(peer->scratch); | |
2360 | peer->scratch = NULL; | |
2361 | } | |
f14e6fdb | 2362 | |
d62a17ae | 2363 | /* Local and remote addresses. */ |
2364 | if (peer->su_local) { | |
2365 | sockunion_free(peer->su_local); | |
2366 | peer->su_local = NULL; | |
2367 | } | |
f14e6fdb | 2368 | |
d62a17ae | 2369 | if (peer->su_remote) { |
2370 | sockunion_free(peer->su_remote); | |
2371 | peer->su_remote = NULL; | |
2372 | } | |
f14e6fdb | 2373 | |
d62a17ae | 2374 | /* Free filter related memory. */ |
05c7a1cc QY |
2375 | FOREACH_AFI_SAFI (afi, safi) { |
2376 | filter = &peer->filter[afi][safi]; | |
d62a17ae | 2377 | |
05c7a1cc QY |
2378 | for (i = FILTER_IN; i < FILTER_MAX; i++) { |
2379 | if (filter->dlist[i].name) { | |
2380 | XFREE(MTYPE_BGP_FILTER_NAME, | |
2381 | filter->dlist[i].name); | |
2382 | filter->dlist[i].name = NULL; | |
d62a17ae | 2383 | } |
2384 | ||
05c7a1cc QY |
2385 | if (filter->plist[i].name) { |
2386 | XFREE(MTYPE_BGP_FILTER_NAME, | |
2387 | filter->plist[i].name); | |
2388 | filter->plist[i].name = NULL; | |
d62a17ae | 2389 | } |
2390 | ||
05c7a1cc | 2391 | if (filter->aslist[i].name) { |
d62a17ae | 2392 | XFREE(MTYPE_BGP_FILTER_NAME, |
05c7a1cc QY |
2393 | filter->aslist[i].name); |
2394 | filter->aslist[i].name = NULL; | |
d62a17ae | 2395 | } |
05c7a1cc | 2396 | } |
d62a17ae | 2397 | |
05c7a1cc QY |
2398 | for (i = RMAP_IN; i < RMAP_MAX; i++) { |
2399 | if (filter->map[i].name) { | |
2400 | XFREE(MTYPE_BGP_FILTER_NAME, | |
2401 | filter->map[i].name); | |
2402 | filter->map[i].name = NULL; | |
d62a17ae | 2403 | } |
2404 | } | |
f14e6fdb | 2405 | |
05c7a1cc QY |
2406 | if (filter->usmap.name) { |
2407 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
2408 | filter->usmap.name = NULL; | |
2409 | } | |
2410 | ||
2411 | if (peer->default_rmap[afi][safi].name) { | |
2412 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
2413 | peer->default_rmap[afi][safi].name); | |
2414 | peer->default_rmap[afi][safi].name = NULL; | |
2415 | } | |
2416 | } | |
2417 | ||
a2addae8 RW |
2418 | FOREACH_AFI_SAFI (afi, safi) |
2419 | peer_af_delete(peer, afi, safi); | |
f14e6fdb | 2420 | |
d62a17ae | 2421 | if (peer->hostname) { |
2422 | XFREE(MTYPE_BGP_PEER_HOST, peer->hostname); | |
2423 | peer->hostname = NULL; | |
2424 | } | |
f14e6fdb | 2425 | |
d62a17ae | 2426 | if (peer->domainname) { |
2427 | XFREE(MTYPE_BGP_PEER_HOST, peer->domainname); | |
2428 | peer->domainname = NULL; | |
2429 | } | |
f14e6fdb | 2430 | |
d62a17ae | 2431 | peer_unlock(peer); /* initial reference */ |
f14e6fdb | 2432 | |
d62a17ae | 2433 | return 0; |
fe7d2a48 DS |
2434 | } |
2435 | ||
d62a17ae | 2436 | static int peer_group_cmp(struct peer_group *g1, struct peer_group *g2) |
2437 | { | |
2438 | return strcmp(g1->name, g2->name); | |
6aeb9e78 DS |
2439 | } |
2440 | ||
d62a17ae | 2441 | /* Peer group cofiguration. */ |
2442 | static struct peer_group *peer_group_new(void) | |
718e3744 | 2443 | { |
9f5dc319 | 2444 | return XCALLOC(MTYPE_PEER_GROUP, sizeof(struct peer_group)); |
718e3744 | 2445 | } |
2446 | ||
d62a17ae | 2447 | static void peer_group_free(struct peer_group *group) |
718e3744 | 2448 | { |
d62a17ae | 2449 | XFREE(MTYPE_PEER_GROUP, group); |
718e3744 | 2450 | } |
2451 | ||
d62a17ae | 2452 | struct peer_group *peer_group_lookup(struct bgp *bgp, const char *name) |
718e3744 | 2453 | { |
d62a17ae | 2454 | struct peer_group *group; |
2455 | struct listnode *node, *nnode; | |
2456 | ||
2457 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
2458 | if (strcmp(group->name, name) == 0) | |
2459 | return group; | |
2460 | } | |
2461 | return NULL; | |
2462 | } | |
2463 | ||
2464 | struct peer_group *peer_group_get(struct bgp *bgp, const char *name) | |
2465 | { | |
2466 | struct peer_group *group; | |
2467 | afi_t afi; | |
2468 | ||
2469 | group = peer_group_lookup(bgp, name); | |
2470 | if (group) | |
2471 | return group; | |
2472 | ||
2473 | group = peer_group_new(); | |
2474 | group->bgp = bgp; | |
0a22ddfb | 2475 | XFREE(MTYPE_PEER_GROUP_HOST, group->name); |
d62a17ae | 2476 | group->name = XSTRDUP(MTYPE_PEER_GROUP_HOST, name); |
2477 | group->peer = list_new(); | |
2478 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
2479 | group->listen_range[afi] = list_new(); | |
2480 | group->conf = peer_new(bgp); | |
2481 | if (!bgp_flag_check(bgp, BGP_FLAG_NO_DEFAULT_IPV4)) | |
2482 | group->conf->afc[AFI_IP][SAFI_UNICAST] = 1; | |
0a22ddfb | 2483 | XFREE(MTYPE_BGP_PEER_HOST, group->conf->host); |
d62a17ae | 2484 | group->conf->host = XSTRDUP(MTYPE_BGP_PEER_HOST, name); |
2485 | group->conf->group = group; | |
2486 | group->conf->as = 0; | |
a0903cd2 | 2487 | group->conf->ttl = BGP_DEFAULT_TTL; |
d62a17ae | 2488 | group->conf->gtsm_hops = 0; |
2489 | group->conf->v_routeadv = BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 2490 | SET_FLAG(group->conf->sflags, PEER_STATUS_GROUP); |
2491 | listnode_add_sort(bgp->group, group); | |
718e3744 | 2492 | |
d62a17ae | 2493 | return group; |
718e3744 | 2494 | } |
2495 | ||
d62a17ae | 2496 | static void peer_group2peer_config_copy(struct peer_group *group, |
2497 | struct peer *peer) | |
ad4cbda1 | 2498 | { |
4c391142 | 2499 | uint32_t flags_tmp; |
d62a17ae | 2500 | struct peer *conf; |
ad4cbda1 | 2501 | |
d62a17ae | 2502 | conf = group->conf; |
ad4cbda1 | 2503 | |
d62a17ae | 2504 | /* remote-as */ |
2505 | if (conf->as) | |
2506 | peer->as = conf->as; | |
718e3744 | 2507 | |
a14810f4 PM |
2508 | /* local-as */ |
2509 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_LOCAL_AS)) | |
d62a17ae | 2510 | peer->change_local_as = conf->change_local_as; |
1758dbaa | 2511 | |
a0903cd2 DA |
2512 | /* If peer-group has configured TTL then override it */ |
2513 | if (conf->ttl != BGP_DEFAULT_TTL) | |
2514 | peer->ttl = conf->ttl; | |
518f0eb1 | 2515 | |
d62a17ae | 2516 | /* GTSM hops */ |
2517 | peer->gtsm_hops = conf->gtsm_hops; | |
ad12dde6 | 2518 | |
4c391142 PM |
2519 | /* peer flags apply */ |
2520 | flags_tmp = conf->flags & ~peer->flags_override; | |
2521 | flags_tmp ^= conf->flags_invert ^ peer->flags_invert; | |
2522 | flags_tmp &= ~peer->flags_override; | |
2523 | ||
2524 | UNSET_FLAG(peer->flags, ~peer->flags_override); | |
2525 | SET_FLAG(peer->flags, flags_tmp); | |
2526 | SET_FLAG(peer->flags_invert, conf->flags_invert); | |
ad4cbda1 | 2527 | |
d62a17ae | 2528 | /* peer timers apply */ |
b90a8e13 PM |
2529 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_TIMER)) { |
2530 | PEER_ATTR_INHERIT(peer, group, holdtime); | |
2531 | PEER_ATTR_INHERIT(peer, group, keepalive); | |
2532 | } | |
6aeb9e78 | 2533 | |
b90a8e13 PM |
2534 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_TIMER_CONNECT)) { |
2535 | PEER_ATTR_INHERIT(peer, group, connect); | |
2536 | if (CHECK_FLAG(conf->flags, PEER_FLAG_TIMER_CONNECT)) | |
2537 | peer->v_connect = conf->connect; | |
2538 | else | |
5d5393b9 | 2539 | peer->v_connect = peer->bgp->default_connect_retry; |
b90a8e13 PM |
2540 | } |
2541 | ||
2542 | /* advertisement-interval apply */ | |
2543 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_ROUTEADV)) { | |
2544 | PEER_ATTR_INHERIT(peer, group, routeadv); | |
2545 | if (CHECK_FLAG(conf->flags, PEER_FLAG_ROUTEADV)) | |
2546 | peer->v_routeadv = conf->routeadv; | |
2547 | else | |
2548 | peer->v_routeadv = (peer_sort(peer) == BGP_PEER_IBGP) | |
2549 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
2550 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
2551 | } | |
718e3744 | 2552 | |
d62a17ae | 2553 | /* password apply */ |
a14810f4 PM |
2554 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_PASSWORD)) |
2555 | PEER_STR_ATTR_INHERIT(peer, group, password, | |
2556 | MTYPE_PEER_PASSWORD); | |
718e3744 | 2557 | |
d62a17ae | 2558 | if (!BGP_PEER_SU_UNSPEC(peer)) |
2559 | bgp_md5_set(peer); | |
d4a7a753 | 2560 | |
d62a17ae | 2561 | /* update-source apply */ |
a14810f4 PM |
2562 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_UPDATE_SOURCE)) { |
2563 | if (conf->update_source) { | |
d62a17ae | 2564 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); |
a14810f4 PM |
2565 | PEER_SU_ATTR_INHERIT(peer, group, update_source); |
2566 | } else if (conf->update_if) { | |
d62a17ae | 2567 | sockunion_free(peer->update_source); |
a14810f4 PM |
2568 | PEER_STR_ATTR_INHERIT(peer, group, update_if, |
2569 | MTYPE_PEER_UPDATE_SOURCE); | |
d62a17ae | 2570 | } |
d62a17ae | 2571 | } |
cd92e548 | 2572 | |
d62a17ae | 2573 | bgp_bfd_peer_group2peer_copy(conf, peer); |
ad4cbda1 | 2574 | } |
718e3744 | 2575 | |
d62a17ae | 2576 | /* Peer group's remote AS configuration. */ |
2577 | int peer_group_remote_as(struct bgp *bgp, const char *group_name, as_t *as, | |
2578 | int as_type) | |
f14e6fdb | 2579 | { |
d62a17ae | 2580 | struct peer_group *group; |
2581 | struct peer *peer; | |
2582 | struct listnode *node, *nnode; | |
f14e6fdb | 2583 | |
d62a17ae | 2584 | group = peer_group_lookup(bgp, group_name); |
2585 | if (!group) | |
2586 | return -1; | |
f14e6fdb | 2587 | |
d62a17ae | 2588 | if ((as_type == group->conf->as_type) && (group->conf->as == *as)) |
2589 | return 0; | |
f14e6fdb | 2590 | |
f14e6fdb | 2591 | |
d62a17ae | 2592 | /* When we setup peer-group AS number all peer group member's AS |
2593 | number must be updated to same number. */ | |
2594 | peer_as_change(group->conf, *as, as_type); | |
f14e6fdb | 2595 | |
d62a17ae | 2596 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { |
2597 | if (((peer->as_type == AS_SPECIFIED) && peer->as != *as) | |
2598 | || (peer->as_type != as_type)) | |
2599 | peer_as_change(peer, *as, as_type); | |
2600 | } | |
f14e6fdb | 2601 | |
d62a17ae | 2602 | return 0; |
f14e6fdb DS |
2603 | } |
2604 | ||
4e2786df DA |
2605 | int peer_notify_unconfig(struct peer *peer) |
2606 | { | |
2607 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
2608 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
2609 | BGP_NOTIFY_CEASE_PEER_UNCONFIG); | |
2610 | return 0; | |
2611 | } | |
2612 | ||
2613 | int peer_group_notify_unconfig(struct peer_group *group) | |
2614 | { | |
2615 | struct peer *peer, *other; | |
2616 | struct listnode *node, *nnode; | |
2617 | ||
2618 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
2619 | other = peer->doppelganger; | |
2620 | if (other && other->status != Deleted) { | |
2621 | other->group = NULL; | |
2622 | peer_notify_unconfig(other); | |
2623 | } else | |
2624 | peer_notify_unconfig(peer); | |
2625 | } | |
2626 | return 0; | |
2627 | } | |
2628 | ||
d62a17ae | 2629 | int peer_group_delete(struct peer_group *group) |
f14e6fdb | 2630 | { |
d62a17ae | 2631 | struct bgp *bgp; |
2632 | struct peer *peer; | |
2633 | struct prefix *prefix; | |
2634 | struct peer *other; | |
2635 | struct listnode *node, *nnode; | |
2636 | afi_t afi; | |
f14e6fdb | 2637 | |
d62a17ae | 2638 | bgp = group->bgp; |
f14e6fdb | 2639 | |
d62a17ae | 2640 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { |
2641 | other = peer->doppelganger; | |
2642 | peer_delete(peer); | |
2643 | if (other && other->status != Deleted) { | |
2644 | other->group = NULL; | |
2645 | peer_delete(other); | |
2646 | } | |
2647 | } | |
6a154c88 | 2648 | list_delete(&group->peer); |
f14e6fdb | 2649 | |
d62a17ae | 2650 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
2651 | for (ALL_LIST_ELEMENTS(group->listen_range[afi], node, nnode, | |
2652 | prefix)) { | |
63265b5c | 2653 | prefix_free(&prefix); |
d62a17ae | 2654 | } |
6a154c88 | 2655 | list_delete(&group->listen_range[afi]); |
d62a17ae | 2656 | } |
f14e6fdb | 2657 | |
d62a17ae | 2658 | XFREE(MTYPE_PEER_GROUP_HOST, group->name); |
2659 | group->name = NULL; | |
0299c004 | 2660 | |
d62a17ae | 2661 | bfd_info_free(&(group->conf->bfd_info)); |
f14e6fdb | 2662 | |
d62a17ae | 2663 | group->conf->group = NULL; |
2664 | peer_delete(group->conf); | |
f14e6fdb | 2665 | |
d62a17ae | 2666 | /* Delete from all peer_group list. */ |
2667 | listnode_delete(bgp->group, group); | |
f14e6fdb | 2668 | |
d62a17ae | 2669 | peer_group_free(group); |
f14e6fdb | 2670 | |
d62a17ae | 2671 | return 0; |
2672 | } | |
f14e6fdb | 2673 | |
d62a17ae | 2674 | int peer_group_remote_as_delete(struct peer_group *group) |
2675 | { | |
2676 | struct peer *peer, *other; | |
2677 | struct listnode *node, *nnode; | |
f14e6fdb | 2678 | |
d62a17ae | 2679 | if ((group->conf->as_type == AS_UNSPECIFIED) |
2680 | || ((!group->conf->as) && (group->conf->as_type == AS_SPECIFIED))) | |
2681 | return 0; | |
f14e6fdb | 2682 | |
d62a17ae | 2683 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { |
2684 | other = peer->doppelganger; | |
f14e6fdb | 2685 | |
d62a17ae | 2686 | peer_delete(peer); |
f14e6fdb | 2687 | |
d62a17ae | 2688 | if (other && other->status != Deleted) { |
2689 | other->group = NULL; | |
2690 | peer_delete(other); | |
2691 | } | |
2692 | } | |
2693 | list_delete_all_node(group->peer); | |
f14e6fdb | 2694 | |
d62a17ae | 2695 | group->conf->as = 0; |
2696 | group->conf->as_type = AS_UNSPECIFIED; | |
f14e6fdb | 2697 | |
d62a17ae | 2698 | return 0; |
f14e6fdb | 2699 | } |
d62a17ae | 2700 | |
2701 | int peer_group_listen_range_add(struct peer_group *group, struct prefix *range) | |
f14e6fdb | 2702 | { |
d62a17ae | 2703 | struct prefix *prefix; |
2704 | struct listnode *node, *nnode; | |
2705 | afi_t afi; | |
f14e6fdb | 2706 | |
d62a17ae | 2707 | afi = family2afi(range->family); |
f14e6fdb | 2708 | |
d62a17ae | 2709 | /* Group needs remote AS configured. */ |
2710 | if (group->conf->as_type == AS_UNSPECIFIED) | |
2711 | return BGP_ERR_PEER_GROUP_NO_REMOTE_AS; | |
718e3744 | 2712 | |
d62a17ae | 2713 | /* Ensure no duplicates. Currently we don't care about overlaps. */ |
2714 | for (ALL_LIST_ELEMENTS(group->listen_range[afi], node, nnode, prefix)) { | |
2715 | if (prefix_same(range, prefix)) | |
2716 | return 0; | |
2717 | } | |
2718 | ||
2719 | prefix = prefix_new(); | |
2720 | prefix_copy(prefix, range); | |
2721 | listnode_add(group->listen_range[afi], prefix); | |
9e7d9a61 QY |
2722 | |
2723 | /* Update passwords for new ranges */ | |
2724 | if (group->conf->password) | |
2725 | bgp_md5_set_prefix(prefix, group->conf->password); | |
2726 | ||
d62a17ae | 2727 | return 0; |
718e3744 | 2728 | } |
6b0655a2 | 2729 | |
d62a17ae | 2730 | int peer_group_listen_range_del(struct peer_group *group, struct prefix *range) |
718e3744 | 2731 | { |
d62a17ae | 2732 | struct prefix *prefix, prefix2; |
2733 | struct listnode *node, *nnode; | |
2734 | struct peer *peer; | |
2735 | afi_t afi; | |
2736 | char buf[PREFIX2STR_BUFFER]; | |
718e3744 | 2737 | |
d62a17ae | 2738 | afi = family2afi(range->family); |
1ff9a340 | 2739 | |
d62a17ae | 2740 | /* Identify the listen range. */ |
2741 | for (ALL_LIST_ELEMENTS(group->listen_range[afi], node, nnode, prefix)) { | |
2742 | if (prefix_same(range, prefix)) | |
2743 | break; | |
1ff9a340 | 2744 | } |
718e3744 | 2745 | |
d62a17ae | 2746 | if (!prefix) |
2747 | return BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_NOT_FOUND; | |
2748 | ||
2749 | prefix2str(prefix, buf, sizeof(buf)); | |
2750 | ||
2751 | /* Dispose off any dynamic neighbors that exist due to this listen range | |
2752 | */ | |
2753 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
2754 | if (!peer_dynamic_neighbor(peer)) | |
2755 | continue; | |
2756 | ||
2757 | sockunion2hostprefix(&peer->su, &prefix2); | |
2758 | if (prefix_match(prefix, &prefix2)) { | |
2759 | if (bgp_debug_neighbor_events(peer)) | |
2760 | zlog_debug( | |
2761 | "Deleting dynamic neighbor %s group %s upon " | |
2762 | "delete of listen range %s", | |
2763 | peer->host, group->name, buf); | |
2764 | peer_delete(peer); | |
2765 | } | |
2766 | } | |
718e3744 | 2767 | |
d62a17ae | 2768 | /* Get rid of the listen range */ |
2769 | listnode_delete(group->listen_range[afi], prefix); | |
718e3744 | 2770 | |
9e7d9a61 QY |
2771 | /* Remove passwords for deleted ranges */ |
2772 | if (group->conf->password) | |
2773 | bgp_md5_unset_prefix(prefix); | |
2774 | ||
d62a17ae | 2775 | return 0; |
2776 | } | |
e0701b79 | 2777 | |
d62a17ae | 2778 | /* Bind specified peer to peer group. */ |
2779 | int peer_group_bind(struct bgp *bgp, union sockunion *su, struct peer *peer, | |
2780 | struct peer_group *group, as_t *as) | |
2781 | { | |
2782 | int first_member = 0; | |
2783 | afi_t afi; | |
2784 | safi_t safi; | |
d62a17ae | 2785 | |
2786 | /* Lookup the peer. */ | |
2787 | if (!peer) | |
2788 | peer = peer_lookup(bgp, su); | |
2789 | ||
2790 | /* The peer exist, bind it to the peer-group */ | |
2791 | if (peer) { | |
ed9fb826 | 2792 | /* When the peer already belongs to a peer-group, check the |
d62a17ae | 2793 | * consistency. */ |
ed9fb826 DW |
2794 | if (peer_group_active(peer)) { |
2795 | ||
2796 | /* The peer is already bound to the peer-group, | |
d8a079e8 DW |
2797 | * nothing to do |
2798 | */ | |
ed9fb826 DW |
2799 | if (strcmp(peer->group->name, group->name) == 0) |
2800 | return 0; | |
2801 | else | |
2802 | return BGP_ERR_PEER_GROUP_CANT_CHANGE; | |
2803 | } | |
d62a17ae | 2804 | |
2805 | /* The peer has not specified a remote-as, inherit it from the | |
2806 | * peer-group */ | |
2807 | if (peer->as_type == AS_UNSPECIFIED) { | |
2808 | peer->as_type = group->conf->as_type; | |
2809 | peer->as = group->conf->as; | |
faa16034 | 2810 | peer->sort = group->conf->sort; |
d62a17ae | 2811 | } |
718e3744 | 2812 | |
390485fd | 2813 | if (!group->conf->as && peer_sort(peer)) { |
d62a17ae | 2814 | if (peer_sort(group->conf) != BGP_PEER_INTERNAL |
2815 | && peer_sort(group->conf) != peer_sort(peer)) { | |
2816 | if (as) | |
2817 | *as = peer->as; | |
2818 | return BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT; | |
2819 | } | |
718e3744 | 2820 | |
d62a17ae | 2821 | if (peer_sort(group->conf) == BGP_PEER_INTERNAL) |
2822 | first_member = 1; | |
2823 | } | |
718e3744 | 2824 | |
d62a17ae | 2825 | peer_group2peer_config_copy(group, peer); |
2826 | ||
05c7a1cc QY |
2827 | FOREACH_AFI_SAFI (afi, safi) { |
2828 | if (group->conf->afc[afi][safi]) { | |
2829 | peer->afc[afi][safi] = 1; | |
2830 | ||
2831 | if (peer_af_find(peer, afi, safi) | |
2832 | || peer_af_create(peer, afi, safi)) { | |
2833 | peer_group2peer_config_copy_af( | |
2834 | group, peer, afi, safi); | |
2835 | } | |
2836 | } else if (peer->afc[afi][safi]) | |
2837 | peer_deactivate(peer, afi, safi); | |
a4d82a8a | 2838 | } |
d62a17ae | 2839 | |
2840 | if (peer->group) { | |
2841 | assert(group && peer->group == group); | |
2842 | } else { | |
0866cdaf A |
2843 | listnode_delete(bgp->peer, peer); |
2844 | ||
d62a17ae | 2845 | peer->group = group; |
2846 | listnode_add_sort(bgp->peer, peer); | |
2847 | ||
2848 | peer = peer_lock(peer); /* group->peer list reference */ | |
2849 | listnode_add(group->peer, peer); | |
2850 | } | |
718e3744 | 2851 | |
d62a17ae | 2852 | if (first_member) { |
2853 | /* Advertisement-interval reset */ | |
b90a8e13 PM |
2854 | if (!CHECK_FLAG(group->conf->flags, |
2855 | PEER_FLAG_ROUTEADV)) { | |
2856 | group->conf->v_routeadv = | |
2857 | (peer_sort(group->conf) | |
2858 | == BGP_PEER_IBGP) | |
2859 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
2860 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 2861 | } |
2862 | ||
2863 | /* ebgp-multihop reset */ | |
2864 | if (peer_sort(group->conf) == BGP_PEER_IBGP) | |
2865 | group->conf->ttl = MAXTTL; | |
2866 | ||
2867 | /* local-as reset */ | |
2868 | if (peer_sort(group->conf) != BGP_PEER_EBGP) { | |
2869 | group->conf->change_local_as = 0; | |
a14810f4 PM |
2870 | peer_flag_unset(group->conf, |
2871 | PEER_FLAG_LOCAL_AS); | |
2872 | peer_flag_unset(group->conf, | |
2873 | PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
2874 | peer_flag_unset(group->conf, | |
2875 | PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
d62a17ae | 2876 | } |
2877 | } | |
718e3744 | 2878 | |
d62a17ae | 2879 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); |
718e3744 | 2880 | |
d62a17ae | 2881 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
2882 | peer->last_reset = PEER_DOWN_RMAP_BIND; | |
2883 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
2884 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
2885 | } else { | |
2886 | bgp_session_reset(peer); | |
2887 | } | |
2888 | } | |
718e3744 | 2889 | |
d62a17ae | 2890 | /* Create a new peer. */ |
2891 | else { | |
2892 | if ((group->conf->as_type == AS_SPECIFIED) | |
2893 | && (!group->conf->as)) { | |
2894 | return BGP_ERR_PEER_GROUP_NO_REMOTE_AS; | |
2895 | } | |
718e3744 | 2896 | |
d62a17ae | 2897 | peer = peer_create(su, NULL, bgp, bgp->as, group->conf->as, |
2898 | group->conf->as_type, 0, 0, group); | |
718e3744 | 2899 | |
d62a17ae | 2900 | peer = peer_lock(peer); /* group->peer list reference */ |
2901 | listnode_add(group->peer, peer); | |
718e3744 | 2902 | |
d62a17ae | 2903 | peer_group2peer_config_copy(group, peer); |
a4ed4829 | 2904 | |
d62a17ae | 2905 | /* If the peer-group is active for this afi/safi then activate |
2906 | * for this peer */ | |
05c7a1cc QY |
2907 | FOREACH_AFI_SAFI (afi, safi) { |
2908 | if (group->conf->afc[afi][safi]) { | |
2909 | peer->afc[afi][safi] = 1; | |
2910 | peer_af_create(peer, afi, safi); | |
2911 | peer_group2peer_config_copy_af(group, peer, afi, | |
2912 | safi); | |
2913 | } else if (peer->afc[afi][safi]) | |
2914 | peer_deactivate(peer, afi, safi); | |
2915 | } | |
718e3744 | 2916 | |
d62a17ae | 2917 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); |
718e3744 | 2918 | |
d62a17ae | 2919 | /* Set up peer's events and timers. */ |
2920 | if (peer_active(peer)) | |
2921 | bgp_timer_set(peer); | |
2922 | } | |
718e3744 | 2923 | |
d62a17ae | 2924 | return 0; |
718e3744 | 2925 | } |
2926 | ||
d62a17ae | 2927 | static int bgp_startup_timer_expire(struct thread *thread) |
2928 | { | |
2929 | struct bgp *bgp; | |
718e3744 | 2930 | |
d62a17ae | 2931 | bgp = THREAD_ARG(thread); |
2932 | bgp->t_startup = NULL; | |
718e3744 | 2933 | |
d62a17ae | 2934 | return 0; |
2935 | } | |
e0701b79 | 2936 | |
829e590b DS |
2937 | /* |
2938 | * On shutdown we call the cleanup function which | |
2939 | * does a free of the link list nodes, free up | |
2940 | * the data we are pointing at too. | |
2941 | */ | |
2942 | static void bgp_vrf_string_name_delete(void *data) | |
2943 | { | |
2944 | char *vname = data; | |
2945 | ||
2946 | XFREE(MTYPE_TMP, vname); | |
2947 | } | |
2948 | ||
d62a17ae | 2949 | /* BGP instance creation by `router bgp' commands. */ |
2950 | static struct bgp *bgp_create(as_t *as, const char *name, | |
2951 | enum bgp_instance_type inst_type) | |
2952 | { | |
0291c246 MK |
2953 | struct bgp *bgp; |
2954 | afi_t afi; | |
2955 | safi_t safi; | |
d62a17ae | 2956 | |
2957 | if ((bgp = XCALLOC(MTYPE_BGP, sizeof(struct bgp))) == NULL) | |
2958 | return NULL; | |
2959 | ||
2960 | if (BGP_DEBUG(zebra, ZEBRA)) { | |
2961 | if (inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
2962 | zlog_debug("Creating Default VRF, AS %u", *as); | |
2963 | else | |
2964 | zlog_debug("Creating %s %s, AS %u", | |
2965 | (inst_type == BGP_INSTANCE_TYPE_VRF) | |
2966 | ? "VRF" | |
2967 | : "VIEW", | |
2968 | name, *as); | |
718e3744 | 2969 | } |
adbac85e | 2970 | |
e2f3a930 T |
2971 | /* Default the EVPN VRF to the default one */ |
2972 | if (inst_type == BGP_INSTANCE_TYPE_DEFAULT && !bgp_master.bgp_evpn) { | |
2973 | bgp_lock(bgp); | |
2974 | bm->bgp_evpn = bgp; | |
2975 | } | |
2976 | ||
d62a17ae | 2977 | bgp_lock(bgp); |
9df5ac49 | 2978 | bgp->heuristic_coalesce = true; |
d62a17ae | 2979 | bgp->inst_type = inst_type; |
2980 | bgp->vrf_id = (inst_type == BGP_INSTANCE_TYPE_DEFAULT) ? VRF_DEFAULT | |
2981 | : VRF_UNKNOWN; | |
2982 | bgp->peer_self = peer_new(bgp); | |
0a22ddfb | 2983 | XFREE(MTYPE_BGP_PEER_HOST, bgp->peer_self->host); |
d62a17ae | 2984 | bgp->peer_self->host = |
2985 | XSTRDUP(MTYPE_BGP_PEER_HOST, "Static announcement"); | |
d77114b7 MK |
2986 | if (bgp->peer_self->hostname != NULL) { |
2987 | XFREE(MTYPE_BGP_PEER_HOST, bgp->peer_self->hostname); | |
2988 | bgp->peer_self->hostname = NULL; | |
2989 | } | |
6b3ee3a0 | 2990 | if (cmd_hostname_get()) |
60466a63 QY |
2991 | bgp->peer_self->hostname = |
2992 | XSTRDUP(MTYPE_BGP_PEER_HOST, cmd_hostname_get()); | |
d77114b7 MK |
2993 | |
2994 | if (bgp->peer_self->domainname != NULL) { | |
2995 | XFREE(MTYPE_BGP_PEER_HOST, bgp->peer_self->domainname); | |
2996 | bgp->peer_self->domainname = NULL; | |
2997 | } | |
6b3ee3a0 | 2998 | if (cmd_domainname_get()) |
60466a63 QY |
2999 | bgp->peer_self->domainname = |
3000 | XSTRDUP(MTYPE_BGP_PEER_HOST, cmd_domainname_get()); | |
d62a17ae | 3001 | bgp->peer = list_new(); |
3002 | bgp->peer->cmp = (int (*)(void *, void *))peer_cmp; | |
a4d82a8a | 3003 | bgp->peerhash = hash_create(peer_hash_key_make, peer_hash_same, |
3f65c5b1 | 3004 | "BGP Peer Hash"); |
40520c36 | 3005 | bgp->peerhash->max_size = BGP_PEER_MAX_HASH_SIZE; |
d62a17ae | 3006 | |
3007 | bgp->group = list_new(); | |
3008 | bgp->group->cmp = (int (*)(void *, void *))peer_group_cmp; | |
3009 | ||
05c7a1cc | 3010 | FOREACH_AFI_SAFI (afi, safi) { |
960035b2 PZ |
3011 | bgp->route[afi][safi] = bgp_table_init(bgp, afi, safi); |
3012 | bgp->aggregate[afi][safi] = bgp_table_init(bgp, afi, safi); | |
3013 | bgp->rib[afi][safi] = bgp_table_init(bgp, afi, safi); | |
05c7a1cc QY |
3014 | |
3015 | /* Enable maximum-paths */ | |
3016 | bgp_maximum_paths_set(bgp, afi, safi, BGP_PEER_EBGP, | |
3017 | multipath_num, 0); | |
3018 | bgp_maximum_paths_set(bgp, afi, safi, BGP_PEER_IBGP, | |
3019 | multipath_num, 0); | |
3020 | } | |
d62a17ae | 3021 | |
3022 | bgp->v_update_delay = BGP_UPDATE_DELAY_DEF; | |
3023 | bgp->default_local_pref = BGP_DEFAULT_LOCAL_PREF; | |
3024 | bgp->default_subgroup_pkt_queue_max = | |
3025 | BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX; | |
5d5393b9 | 3026 | bgp_timers_unset(bgp); |
d62a17ae | 3027 | bgp->restart_time = BGP_DEFAULT_RESTART_TIME; |
3028 | bgp->stalepath_time = BGP_DEFAULT_STALEPATH_TIME; | |
3029 | bgp->dynamic_neighbors_limit = BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT; | |
3030 | bgp->dynamic_neighbors_count = 0; | |
9dac9fc8 | 3031 | bgp->ebgp_requires_policy = DEFAULT_EBGP_POLICY_DISABLED; |
fb29348a | 3032 | bgp->reject_as_sets = BGP_REJECT_AS_SETS_DISABLED; |
dcc68b5e | 3033 | bgp_addpath_init_bgp_data(&bgp->tx_addpath); |
d62a17ae | 3034 | |
3035 | bgp->as = *as; | |
3036 | ||
3037 | #if ENABLE_BGP_VNC | |
3038 | if (inst_type != BGP_INSTANCE_TYPE_VRF) { | |
3039 | bgp->rfapi = bgp_rfapi_new(bgp); | |
3040 | assert(bgp->rfapi); | |
3041 | assert(bgp->rfapi_cfg); | |
3042 | } | |
3043 | #endif /* ENABLE_BGP_VNC */ | |
adbac85e | 3044 | |
ddb5b488 | 3045 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
e70e9f8e PZ |
3046 | bgp->vpn_policy[afi].bgp = bgp; |
3047 | bgp->vpn_policy[afi].afi = afi; | |
ddb5b488 PZ |
3048 | bgp->vpn_policy[afi].tovpn_label = MPLS_LABEL_NONE; |
3049 | bgp->vpn_policy[afi].tovpn_zebra_vrf_label_last_sent = | |
3050 | MPLS_LABEL_NONE; | |
12a844a5 DS |
3051 | |
3052 | bgp->vpn_policy[afi].import_vrf = list_new(); | |
829e590b DS |
3053 | bgp->vpn_policy[afi].import_vrf->del = |
3054 | bgp_vrf_string_name_delete; | |
12a844a5 | 3055 | bgp->vpn_policy[afi].export_vrf = list_new(); |
829e590b DS |
3056 | bgp->vpn_policy[afi].export_vrf->del = |
3057 | bgp_vrf_string_name_delete; | |
ddb5b488 | 3058 | } |
d62a17ae | 3059 | if (name) { |
3060 | bgp->name = XSTRDUP(MTYPE_BGP, name); | |
3061 | } else { | |
3062 | /* TODO - The startup timer needs to be run for the whole of BGP | |
3063 | */ | |
3064 | thread_add_timer(bm->master, bgp_startup_timer_expire, bgp, | |
3065 | bgp->restart_time, &bgp->t_startup); | |
3066 | } | |
06370dac | 3067 | |
3572fb26 PZ |
3068 | /* printable name we can use in debug messages */ |
3069 | if (inst_type == BGP_INSTANCE_TYPE_DEFAULT) { | |
3070 | bgp->name_pretty = XSTRDUP(MTYPE_BGP, "VRF default"); | |
3071 | } else { | |
3072 | const char *n; | |
3073 | int len; | |
3074 | ||
3075 | if (bgp->name) | |
3076 | n = bgp->name; | |
3077 | else | |
3078 | n = "?"; | |
3079 | ||
3080 | len = 4 + 1 + strlen(n) + 1; /* "view foo\0" */ | |
3081 | ||
3082 | bgp->name_pretty = XCALLOC(MTYPE_BGP, len); | |
3083 | snprintf(bgp->name_pretty, len, "%s %s", | |
3084 | (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) | |
3085 | ? "VRF" | |
3086 | : "VIEW", | |
3087 | n); | |
3088 | } | |
3089 | ||
555e09d4 QY |
3090 | atomic_store_explicit(&bgp->wpkt_quanta, BGP_WRITE_PACKET_MAX, |
3091 | memory_order_relaxed); | |
3092 | atomic_store_explicit(&bgp->rpkt_quanta, BGP_READ_PACKET_MAX, | |
3093 | memory_order_relaxed); | |
d62a17ae | 3094 | bgp->coalesce_time = BGP_DEFAULT_SUBGROUP_COALESCE_TIME; |
adbac85e | 3095 | |
d62a17ae | 3096 | QOBJ_REG(bgp, bgp); |
adbac85e | 3097 | |
d62a17ae | 3098 | update_bgp_group_init(bgp); |
92708db6 | 3099 | |
3100 | /* assign a unique rd id for auto derivation of vrf's RD */ | |
3101 | bf_assign_index(bm->rd_idspace, bgp->vrf_rd_id); | |
3102 | ||
85c8d83b CS |
3103 | bgp->evpn_info = XCALLOC(MTYPE_BGP_EVPN_INFO, |
3104 | sizeof(struct bgp_evpn_info)); | |
3105 | ||
d62a17ae | 3106 | bgp_evpn_init(bgp); |
f3d32faa | 3107 | bgp_pbr_init(bgp); |
794b37d5 | 3108 | |
3109 | /*initilize global GR FSM */ | |
3110 | bgp_global_gr_init(bgp); | |
d62a17ae | 3111 | return bgp; |
718e3744 | 3112 | } |
3113 | ||
d62a17ae | 3114 | /* Return the "default VRF" instance of BGP. */ |
3115 | struct bgp *bgp_get_default(void) | |
718e3744 | 3116 | { |
d62a17ae | 3117 | struct bgp *bgp; |
3118 | struct listnode *node, *nnode; | |
3119 | ||
3120 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) | |
3121 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
3122 | return bgp; | |
3123 | return NULL; | |
718e3744 | 3124 | } |
3125 | ||
d62a17ae | 3126 | /* Lookup BGP entry. */ |
3127 | struct bgp *bgp_lookup(as_t as, const char *name) | |
718e3744 | 3128 | { |
d62a17ae | 3129 | struct bgp *bgp; |
3130 | struct listnode *node, *nnode; | |
6b0655a2 | 3131 | |
d62a17ae | 3132 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) |
3133 | if (bgp->as == as | |
3134 | && ((bgp->name == NULL && name == NULL) | |
3135 | || (bgp->name && name && strcmp(bgp->name, name) == 0))) | |
3136 | return bgp; | |
3137 | return NULL; | |
3138 | } | |
73d70fa6 | 3139 | |
d62a17ae | 3140 | /* Lookup BGP structure by view name. */ |
3141 | struct bgp *bgp_lookup_by_name(const char *name) | |
73d70fa6 | 3142 | { |
d62a17ae | 3143 | struct bgp *bgp; |
3144 | struct listnode *node, *nnode; | |
3145 | ||
3146 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) | |
3147 | if ((bgp->name == NULL && name == NULL) | |
3148 | || (bgp->name && name && strcmp(bgp->name, name) == 0)) | |
3149 | return bgp; | |
3150 | return NULL; | |
73d70fa6 DL |
3151 | } |
3152 | ||
d62a17ae | 3153 | /* Lookup BGP instance based on VRF id. */ |
3154 | /* Note: Only to be used for incoming messages from Zebra. */ | |
3155 | struct bgp *bgp_lookup_by_vrf_id(vrf_id_t vrf_id) | |
73d70fa6 | 3156 | { |
d62a17ae | 3157 | struct vrf *vrf; |
3158 | ||
3159 | /* Lookup VRF (in tree) and follow link. */ | |
3160 | vrf = vrf_lookup_by_id(vrf_id); | |
3161 | if (!vrf) | |
3162 | return NULL; | |
3163 | return (vrf->info) ? (struct bgp *)vrf->info : NULL; | |
73d70fa6 DL |
3164 | } |
3165 | ||
e2f3a930 T |
3166 | /* Sets the BGP instance where EVPN is enabled */ |
3167 | void bgp_set_evpn(struct bgp *bgp) | |
3168 | { | |
3169 | if (bm->bgp_evpn == bgp) | |
3170 | return; | |
3171 | ||
3172 | /* First, release the reference count we hold on the instance */ | |
3173 | if (bm->bgp_evpn) | |
3174 | bgp_unlock(bm->bgp_evpn); | |
3175 | ||
3176 | bm->bgp_evpn = bgp; | |
3177 | ||
3178 | /* Increase the reference count on this new VRF */ | |
3179 | if (bm->bgp_evpn) | |
3180 | bgp_lock(bm->bgp_evpn); | |
3181 | } | |
3182 | ||
3183 | /* Returns the BGP instance where EVPN is enabled, if any */ | |
3184 | struct bgp *bgp_get_evpn(void) | |
3185 | { | |
3186 | return bm->bgp_evpn; | |
3187 | } | |
3188 | ||
e5619c28 PG |
3189 | /* handle socket creation or deletion, if necessary |
3190 | * this is called for all new BGP instances | |
3191 | */ | |
996c9314 LB |
3192 | int bgp_handle_socket(struct bgp *bgp, struct vrf *vrf, vrf_id_t old_vrf_id, |
3193 | bool create) | |
e5619c28 PG |
3194 | { |
3195 | int ret = 0; | |
3196 | ||
3197 | /* Create BGP server socket, if listen mode not disabled */ | |
3198 | if (!bgp || bgp_option_check(BGP_OPT_NO_LISTEN)) | |
3199 | return 0; | |
3ad00234 | 3200 | if (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) { |
e5619c28 PG |
3201 | /* |
3202 | * suppress vrf socket | |
3203 | */ | |
2951a7a4 | 3204 | if (create == false) { |
3ad00234 LB |
3205 | bgp_close_vrf_socket(bgp); |
3206 | return 0; | |
e5619c28 | 3207 | } |
3ad00234 LB |
3208 | if (vrf == NULL) |
3209 | return BGP_ERR_INVALID_VALUE; | |
e5619c28 PG |
3210 | /* do nothing |
3211 | * if vrf_id did not change | |
3212 | */ | |
3213 | if (vrf->vrf_id == old_vrf_id) | |
3214 | return 0; | |
3215 | if (old_vrf_id != VRF_UNKNOWN) { | |
3216 | /* look for old socket. close it. */ | |
3217 | bgp_close_vrf_socket(bgp); | |
3218 | } | |
3219 | /* if backend is not yet identified ( VRF_UNKNOWN) then | |
3220 | * creation will be done later | |
3221 | */ | |
3222 | if (vrf->vrf_id == VRF_UNKNOWN) | |
3223 | return 0; | |
3ad00234 LB |
3224 | ret = bgp_socket(bgp, bm->port, bm->address); |
3225 | if (ret < 0) | |
3226 | return BGP_ERR_INVALID_VALUE; | |
3227 | return 0; | |
3228 | } else | |
3229 | return bgp_check_main_socket(create, bgp); | |
e5619c28 PG |
3230 | } |
3231 | ||
d62a17ae | 3232 | /* Called from VTY commands. */ |
3233 | int bgp_get(struct bgp **bgp_val, as_t *as, const char *name, | |
3234 | enum bgp_instance_type inst_type) | |
3235 | { | |
3236 | struct bgp *bgp; | |
e5619c28 | 3237 | struct vrf *vrf = NULL; |
d62a17ae | 3238 | |
3239 | /* Multiple instance check. */ | |
8fbb4853 DS |
3240 | if (name) |
3241 | bgp = bgp_lookup_by_name(name); | |
3242 | else | |
d62a17ae | 3243 | bgp = bgp_get_default(); |
3244 | ||
8fbb4853 DS |
3245 | /* Already exists. */ |
3246 | if (bgp) { | |
3247 | if (bgp->as != *as) { | |
3248 | *as = bgp->as; | |
3249 | return BGP_ERR_INSTANCE_MISMATCH; | |
d62a17ae | 3250 | } |
8fbb4853 DS |
3251 | if (bgp->inst_type != inst_type) |
3252 | return BGP_ERR_INSTANCE_MISMATCH; | |
3253 | *bgp_val = bgp; | |
d5568431 | 3254 | return BGP_SUCCESS; |
d62a17ae | 3255 | } |
73d70fa6 | 3256 | |
d62a17ae | 3257 | bgp = bgp_create(as, name, inst_type); |
0b014ea6 PG |
3258 | if (bgp_option_check(BGP_OPT_NO_ZEBRA) && name) |
3259 | bgp->vrf_id = vrf_generate_id(); | |
2951a7a4 | 3260 | bgp_router_id_set(bgp, &bgp->router_id_zebra, true); |
d62a17ae | 3261 | bgp_address_init(bgp); |
db0e1937 | 3262 | bgp_tip_hash_init(bgp); |
d62a17ae | 3263 | bgp_scan_init(bgp); |
3264 | *bgp_val = bgp; | |
eb821189 | 3265 | |
d62a17ae | 3266 | bgp->t_rmap_def_originate_eval = NULL; |
e5cc509c | 3267 | |
d62a17ae | 3268 | /* If Default instance or VRF, link to the VRF structure, if present. */ |
3269 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT | |
3270 | || bgp->inst_type == BGP_INSTANCE_TYPE_VRF) { | |
d62a17ae | 3271 | vrf = bgp_vrf_lookup_by_instance_type(bgp); |
3272 | if (vrf) | |
3273 | bgp_vrf_link(bgp, vrf); | |
3274 | } | |
e5619c28 PG |
3275 | /* BGP server socket already processed if BGP instance |
3276 | * already part of the list | |
3277 | */ | |
3278 | bgp_handle_socket(bgp, vrf, VRF_UNKNOWN, true); | |
3279 | listnode_add(bm->bgp, bgp); | |
718e3744 | 3280 | |
bb4ef1ae DS |
3281 | if (IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
3282 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3283 | zlog_debug("%s: Registering BGP instance %s to zebra", | |
3284 | __PRETTY_FUNCTION__, name); | |
d62a17ae | 3285 | bgp_zebra_instance_register(bgp); |
bb4ef1ae | 3286 | } |
718e3744 | 3287 | |
5d5393b9 | 3288 | return BGP_CREATED; |
718e3744 | 3289 | } |
6b0655a2 | 3290 | |
d62a17ae | 3291 | /* |
3292 | * Make BGP instance "up". Applies only to VRFs (non-default) and | |
3293 | * implies the VRF has been learnt from Zebra. | |
3294 | */ | |
3295 | void bgp_instance_up(struct bgp *bgp) | |
718e3744 | 3296 | { |
d62a17ae | 3297 | struct peer *peer; |
3298 | struct listnode *node, *next; | |
718e3744 | 3299 | |
d62a17ae | 3300 | /* Register with zebra. */ |
3301 | bgp_zebra_instance_register(bgp); | |
718e3744 | 3302 | |
d62a17ae | 3303 | /* Kick off any peers that may have been configured. */ |
3304 | for (ALL_LIST_ELEMENTS(bgp->peer, node, next, peer)) { | |
3305 | if (!BGP_PEER_START_SUPPRESSED(peer)) | |
3306 | BGP_EVENT_ADD(peer, BGP_Start); | |
718e3744 | 3307 | } |
3308 | ||
d62a17ae | 3309 | /* Process any networks that have been configured. */ |
3310 | bgp_static_add(bgp); | |
3311 | } | |
3312 | ||
3313 | /* | |
3314 | * Make BGP instance "down". Applies only to VRFs (non-default) and | |
3315 | * implies the VRF has been deleted by Zebra. | |
3316 | */ | |
3317 | void bgp_instance_down(struct bgp *bgp) | |
3318 | { | |
3319 | struct peer *peer; | |
3320 | struct listnode *node; | |
3321 | struct listnode *next; | |
3322 | ||
3323 | /* Stop timers. */ | |
3324 | if (bgp->t_rmap_def_originate_eval) { | |
3325 | BGP_TIMER_OFF(bgp->t_rmap_def_originate_eval); | |
3326 | bgp_unlock(bgp); /* TODO - This timer is started with a lock - | |
3327 | why? */ | |
718e3744 | 3328 | } |
3329 | ||
d62a17ae | 3330 | /* Bring down peers, so corresponding routes are purged. */ |
3331 | for (ALL_LIST_ELEMENTS(bgp->peer, node, next, peer)) { | |
3332 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
3333 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3334 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN); | |
3335 | else | |
3336 | bgp_session_reset(peer); | |
3337 | } | |
718e3744 | 3338 | |
d62a17ae | 3339 | /* Purge network and redistributed routes. */ |
3340 | bgp_purge_static_redist_routes(bgp); | |
ee7ca6c0 | 3341 | |
3342 | /* Cleanup registered nexthops (flags) */ | |
3343 | bgp_cleanup_nexthops(bgp); | |
718e3744 | 3344 | } |
3345 | ||
d62a17ae | 3346 | /* Delete BGP instance. */ |
3347 | int bgp_delete(struct bgp *bgp) | |
3348 | { | |
3349 | struct peer *peer; | |
3350 | struct peer_group *group; | |
3351 | struct listnode *node, *next; | |
3352 | struct vrf *vrf; | |
3353 | afi_t afi; | |
3354 | int i; | |
3355 | ||
bf383464 | 3356 | assert(bgp); |
2b9bcf30 DL |
3357 | |
3358 | hook_call(bgp_inst_delete, bgp); | |
3359 | ||
d62a17ae | 3360 | THREAD_OFF(bgp->t_startup); |
c969b2ed DS |
3361 | THREAD_OFF(bgp->t_maxmed_onstartup); |
3362 | THREAD_OFF(bgp->t_update_delay); | |
3363 | THREAD_OFF(bgp->t_establish_wait); | |
d62a17ae | 3364 | |
9f822fa2 S |
3365 | /* Set flag indicating bgp instance delete in progress */ |
3366 | bgp_flag_set(bgp, BGP_FLAG_DELETE_IN_PROGRESS); | |
3367 | ||
d62a17ae | 3368 | if (BGP_DEBUG(zebra, ZEBRA)) { |
3369 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
3370 | zlog_debug("Deleting Default VRF"); | |
3371 | else | |
3372 | zlog_debug("Deleting %s %s", | |
3373 | (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) | |
3374 | ? "VRF" | |
3375 | : "VIEW", | |
3376 | bgp->name); | |
718e3744 | 3377 | } |
3378 | ||
10ebe1ab MK |
3379 | /* unmap from RT list */ |
3380 | bgp_evpn_vrf_delete(bgp); | |
3381 | ||
dfd17258 PG |
3382 | /* unmap bgp vrf label */ |
3383 | vpn_leak_zebra_vrf_label_withdraw(bgp, AFI_IP); | |
3384 | vpn_leak_zebra_vrf_label_withdraw(bgp, AFI_IP6); | |
3385 | ||
d62a17ae | 3386 | /* Stop timers. */ |
3387 | if (bgp->t_rmap_def_originate_eval) { | |
3388 | BGP_TIMER_OFF(bgp->t_rmap_def_originate_eval); | |
3389 | bgp_unlock(bgp); /* TODO - This timer is started with a lock - | |
3390 | why? */ | |
718e3744 | 3391 | } |
3392 | ||
d62a17ae | 3393 | /* Inform peers we're going down. */ |
3394 | for (ALL_LIST_ELEMENTS(bgp->peer, node, next, peer)) { | |
3395 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
3396 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3397 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN); | |
718e3744 | 3398 | } |
3399 | ||
d62a17ae | 3400 | /* Delete static routes (networks). */ |
3401 | bgp_static_delete(bgp); | |
6b0655a2 | 3402 | |
d62a17ae | 3403 | /* Unset redistribution. */ |
3404 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
3405 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
3406 | if (i != ZEBRA_ROUTE_BGP) | |
3407 | bgp_redistribute_unset(bgp, afi, i, 0); | |
718e3744 | 3408 | |
d62a17ae | 3409 | /* Free peers and peer-groups. */ |
3410 | for (ALL_LIST_ELEMENTS(bgp->group, node, next, group)) | |
3411 | peer_group_delete(group); | |
718e3744 | 3412 | |
d62a17ae | 3413 | for (ALL_LIST_ELEMENTS(bgp->peer, node, next, peer)) |
3414 | peer_delete(peer); | |
3415 | ||
3416 | if (bgp->peer_self) { | |
3417 | peer_delete(bgp->peer_self); | |
3418 | bgp->peer_self = NULL; | |
718e3744 | 3419 | } |
3420 | ||
d62a17ae | 3421 | update_bgp_group_free(bgp); |
718e3744 | 3422 | |
d62a17ae | 3423 | /* TODO - Other memory may need to be freed - e.g., NHT */ |
3424 | ||
3425 | #if ENABLE_BGP_VNC | |
3426 | rfapi_delete(bgp); | |
3427 | #endif | |
3428 | bgp_cleanup_routes(bgp); | |
718e3744 | 3429 | |
301ad80a PG |
3430 | for (afi = 0; afi < AFI_MAX; ++afi) { |
3431 | if (!bgp->vpn_policy[afi].import_redirect_rtlist) | |
3432 | continue; | |
3433 | ecommunity_free( | |
3434 | &bgp->vpn_policy[afi] | |
3435 | .import_redirect_rtlist); | |
3436 | bgp->vpn_policy[afi].import_redirect_rtlist = NULL; | |
3437 | } | |
718e3744 | 3438 | |
d62a17ae | 3439 | /* Deregister from Zebra, if needed */ |
bb4ef1ae DS |
3440 | if (IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
3441 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3442 | zlog_debug("%s: deregistering this bgp %s instance from zebra", | |
3443 | __PRETTY_FUNCTION__, bgp->name); | |
d62a17ae | 3444 | bgp_zebra_instance_deregister(bgp); |
bb4ef1ae | 3445 | } |
718e3744 | 3446 | |
de6058ab AK |
3447 | /* Remove visibility via the master list - there may however still be |
3448 | * routes to be processed still referencing the struct bgp. | |
3449 | */ | |
3450 | listnode_delete(bm->bgp, bgp); | |
3451 | ||
d62a17ae | 3452 | /* Free interfaces in this instance. */ |
3453 | bgp_if_finish(bgp); | |
718e3744 | 3454 | |
d62a17ae | 3455 | vrf = bgp_vrf_lookup_by_instance_type(bgp); |
e5619c28 | 3456 | bgp_handle_socket(bgp, vrf, VRF_UNKNOWN, false); |
d62a17ae | 3457 | if (vrf) |
3458 | bgp_vrf_unlink(bgp, vrf); | |
718e3744 | 3459 | |
e2f3a930 T |
3460 | /* Update EVPN VRF pointer */ |
3461 | if (bm->bgp_evpn == bgp) { | |
3462 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
3463 | bgp_set_evpn(NULL); | |
3464 | else | |
3465 | bgp_set_evpn(bgp_get_default()); | |
3466 | } | |
3467 | ||
d62a17ae | 3468 | thread_master_free_unused(bm->master); |
3469 | bgp_unlock(bgp); /* initial reference */ | |
718e3744 | 3470 | |
d62a17ae | 3471 | return 0; |
718e3744 | 3472 | } |
6b0655a2 | 3473 | |
92375c91 | 3474 | void bgp_free(struct bgp *bgp) |
d93f7ffc | 3475 | { |
d62a17ae | 3476 | afi_t afi; |
3477 | safi_t safi; | |
3478 | struct bgp_table *table; | |
3479 | struct bgp_node *rn; | |
f8265580 | 3480 | struct bgp_rmap *rmap; |
d93f7ffc | 3481 | |
d62a17ae | 3482 | QOBJ_UNREG(bgp); |
d93f7ffc | 3483 | |
6a154c88 DL |
3484 | list_delete(&bgp->group); |
3485 | list_delete(&bgp->peer); | |
966f821c | 3486 | |
d62a17ae | 3487 | if (bgp->peerhash) { |
3488 | hash_free(bgp->peerhash); | |
3489 | bgp->peerhash = NULL; | |
3490 | } | |
718e3744 | 3491 | |
05c7a1cc QY |
3492 | FOREACH_AFI_SAFI (afi, safi) { |
3493 | /* Special handling for 2-level routing tables. */ | |
3494 | if (safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP | |
3495 | || safi == SAFI_EVPN) { | |
3496 | for (rn = bgp_table_top(bgp->rib[afi][safi]); rn; | |
3497 | rn = bgp_route_next(rn)) { | |
67009e22 | 3498 | table = bgp_node_get_bgp_table_info(rn); |
05c7a1cc | 3499 | bgp_table_finish(&table); |
d62a17ae | 3500 | } |
d62a17ae | 3501 | } |
05c7a1cc QY |
3502 | if (bgp->route[afi][safi]) |
3503 | bgp_table_finish(&bgp->route[afi][safi]); | |
3504 | if (bgp->aggregate[afi][safi]) | |
3505 | bgp_table_finish(&bgp->aggregate[afi][safi]); | |
3506 | if (bgp->rib[afi][safi]) | |
3507 | bgp_table_finish(&bgp->rib[afi][safi]); | |
3508 | rmap = &bgp->table_map[afi][safi]; | |
0a22ddfb | 3509 | XFREE(MTYPE_ROUTE_MAP_NAME, rmap->name); |
05c7a1cc | 3510 | } |
718e3744 | 3511 | |
d62a17ae | 3512 | bgp_scan_finish(bgp); |
3513 | bgp_address_destroy(bgp); | |
db0e1937 | 3514 | bgp_tip_hash_destroy(bgp); |
966f821c | 3515 | |
92708db6 | 3516 | /* release the auto RD id */ |
3517 | bf_release_index(bm->rd_idspace, bgp->vrf_rd_id); | |
3518 | ||
d62a17ae | 3519 | bgp_evpn_cleanup(bgp); |
a6b07429 | 3520 | bgp_pbr_cleanup(bgp); |
85c8d83b | 3521 | XFREE(MTYPE_BGP_EVPN_INFO, bgp->evpn_info); |
829e590b DS |
3522 | |
3523 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
3524 | vpn_policy_direction_t dir; | |
3525 | ||
3526 | if (bgp->vpn_policy[afi].import_vrf) | |
6a154c88 | 3527 | list_delete(&bgp->vpn_policy[afi].import_vrf); |
829e590b | 3528 | if (bgp->vpn_policy[afi].export_vrf) |
6a154c88 | 3529 | list_delete(&bgp->vpn_policy[afi].export_vrf); |
829e590b DS |
3530 | |
3531 | dir = BGP_VPN_POLICY_DIR_FROMVPN; | |
3532 | if (bgp->vpn_policy[afi].rtlist[dir]) | |
3533 | ecommunity_free(&bgp->vpn_policy[afi].rtlist[dir]); | |
3534 | dir = BGP_VPN_POLICY_DIR_TOVPN; | |
3535 | if (bgp->vpn_policy[afi].rtlist[dir]) | |
3536 | ecommunity_free(&bgp->vpn_policy[afi].rtlist[dir]); | |
3537 | } | |
3538 | ||
0a22ddfb QY |
3539 | XFREE(MTYPE_BGP, bgp->name); |
3540 | XFREE(MTYPE_BGP, bgp->name_pretty); | |
966f821c | 3541 | |
d62a17ae | 3542 | XFREE(MTYPE_BGP, bgp); |
718e3744 | 3543 | } |
3544 | ||
d62a17ae | 3545 | struct peer *peer_lookup_by_conf_if(struct bgp *bgp, const char *conf_if) |
718e3744 | 3546 | { |
d62a17ae | 3547 | struct peer *peer; |
3548 | struct listnode *node, *nnode; | |
966f821c | 3549 | |
d62a17ae | 3550 | if (!conf_if) |
3551 | return NULL; | |
6b0655a2 | 3552 | |
d62a17ae | 3553 | if (bgp != NULL) { |
3554 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
3555 | if (peer->conf_if && !strcmp(peer->conf_if, conf_if) | |
3556 | && !CHECK_FLAG(peer->sflags, | |
3557 | PEER_STATUS_ACCEPT_PEER)) | |
3558 | return peer; | |
3559 | } else if (bm->bgp != NULL) { | |
3560 | struct listnode *bgpnode, *nbgpnode; | |
3561 | ||
3562 | for (ALL_LIST_ELEMENTS(bm->bgp, bgpnode, nbgpnode, bgp)) | |
3563 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
3564 | if (peer->conf_if | |
3565 | && !strcmp(peer->conf_if, conf_if) | |
3566 | && !CHECK_FLAG(peer->sflags, | |
3567 | PEER_STATUS_ACCEPT_PEER)) | |
3568 | return peer; | |
3569 | } | |
3570 | return NULL; | |
718e3744 | 3571 | } |
3572 | ||
d62a17ae | 3573 | struct peer *peer_lookup_by_hostname(struct bgp *bgp, const char *hostname) |
718e3744 | 3574 | { |
d62a17ae | 3575 | struct peer *peer; |
3576 | struct listnode *node, *nnode; | |
6b0655a2 | 3577 | |
d62a17ae | 3578 | if (!hostname) |
3579 | return NULL; | |
6b0655a2 | 3580 | |
d62a17ae | 3581 | if (bgp != NULL) { |
3582 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
3583 | if (peer->hostname && !strcmp(peer->hostname, hostname) | |
3584 | && !CHECK_FLAG(peer->sflags, | |
3585 | PEER_STATUS_ACCEPT_PEER)) | |
3586 | return peer; | |
3587 | } else if (bm->bgp != NULL) { | |
3588 | struct listnode *bgpnode, *nbgpnode; | |
3589 | ||
3590 | for (ALL_LIST_ELEMENTS(bm->bgp, bgpnode, nbgpnode, bgp)) | |
3591 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
3592 | if (peer->hostname | |
3593 | && !strcmp(peer->hostname, hostname) | |
3594 | && !CHECK_FLAG(peer->sflags, | |
3595 | PEER_STATUS_ACCEPT_PEER)) | |
3596 | return peer; | |
3597 | } | |
3598 | return NULL; | |
3599 | } | |
3600 | ||
3601 | struct peer *peer_lookup(struct bgp *bgp, union sockunion *su) | |
3602 | { | |
3603 | struct peer *peer = NULL; | |
3604 | struct peer tmp_peer; | |
3605 | ||
3606 | memset(&tmp_peer, 0, sizeof(struct peer)); | |
3607 | ||
3608 | /* | |
3609 | * We do not want to find the doppelganger peer so search for the peer | |
3610 | * in | |
3611 | * the hash that has PEER_FLAG_CONFIG_NODE | |
3612 | */ | |
3613 | SET_FLAG(tmp_peer.flags, PEER_FLAG_CONFIG_NODE); | |
3614 | ||
3615 | tmp_peer.su = *su; | |
3616 | ||
3617 | if (bgp != NULL) { | |
3618 | peer = hash_lookup(bgp->peerhash, &tmp_peer); | |
3619 | } else if (bm->bgp != NULL) { | |
3620 | struct listnode *bgpnode, *nbgpnode; | |
3621 | ||
3622 | for (ALL_LIST_ELEMENTS(bm->bgp, bgpnode, nbgpnode, bgp)) { | |
d62a17ae | 3623 | peer = hash_lookup(bgp->peerhash, &tmp_peer); |
d62a17ae | 3624 | if (peer) |
3625 | break; | |
3626 | } | |
3627 | } | |
3628 | ||
3629 | return peer; | |
3630 | } | |
3631 | ||
3632 | struct peer *peer_create_bind_dynamic_neighbor(struct bgp *bgp, | |
3633 | union sockunion *su, | |
3634 | struct peer_group *group) | |
3635 | { | |
3636 | struct peer *peer; | |
3637 | afi_t afi; | |
3638 | safi_t safi; | |
3639 | ||
3640 | /* Create peer first; we've already checked group config is valid. */ | |
3641 | peer = peer_create(su, NULL, bgp, bgp->as, group->conf->as, | |
3642 | group->conf->as_type, 0, 0, group); | |
3643 | if (!peer) | |
3644 | return NULL; | |
3645 | ||
3646 | /* Link to group */ | |
3647 | peer = peer_lock(peer); | |
3648 | listnode_add(group->peer, peer); | |
3649 | ||
3650 | peer_group2peer_config_copy(group, peer); | |
3651 | ||
3652 | /* | |
3653 | * Bind peer for all AFs configured for the group. We don't call | |
3654 | * peer_group_bind as that is sub-optimal and does some stuff we don't | |
3655 | * want. | |
3656 | */ | |
05c7a1cc QY |
3657 | FOREACH_AFI_SAFI (afi, safi) { |
3658 | if (!group->conf->afc[afi][safi]) | |
3659 | continue; | |
3660 | peer->afc[afi][safi] = 1; | |
d62a17ae | 3661 | |
05c7a1cc QY |
3662 | if (!peer_af_find(peer, afi, safi)) |
3663 | peer_af_create(peer, afi, safi); | |
d62a17ae | 3664 | |
05c7a1cc QY |
3665 | peer_group2peer_config_copy_af(group, peer, afi, safi); |
3666 | } | |
d62a17ae | 3667 | |
3668 | /* Mark as dynamic, but also as a "config node" for other things to | |
3669 | * work. */ | |
3670 | SET_FLAG(peer->flags, PEER_FLAG_DYNAMIC_NEIGHBOR); | |
3671 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); | |
3672 | ||
3673 | return peer; | |
3674 | } | |
3675 | ||
3676 | struct prefix * | |
3677 | peer_group_lookup_dynamic_neighbor_range(struct peer_group *group, | |
3678 | struct prefix *prefix) | |
3679 | { | |
3680 | struct listnode *node, *nnode; | |
3681 | struct prefix *range; | |
3682 | afi_t afi; | |
3683 | ||
3684 | afi = family2afi(prefix->family); | |
3685 | ||
3686 | if (group->listen_range[afi]) | |
3687 | for (ALL_LIST_ELEMENTS(group->listen_range[afi], node, nnode, | |
3688 | range)) | |
3689 | if (prefix_match(range, prefix)) | |
3690 | return range; | |
3691 | ||
3692 | return NULL; | |
3693 | } | |
3694 | ||
3695 | struct peer_group * | |
3696 | peer_group_lookup_dynamic_neighbor(struct bgp *bgp, struct prefix *prefix, | |
3697 | struct prefix **listen_range) | |
3698 | { | |
3699 | struct prefix *range = NULL; | |
3700 | struct peer_group *group = NULL; | |
3701 | struct listnode *node, *nnode; | |
3702 | ||
3703 | *listen_range = NULL; | |
3704 | if (bgp != NULL) { | |
3705 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) | |
3706 | if ((range = peer_group_lookup_dynamic_neighbor_range( | |
3707 | group, prefix))) | |
3708 | break; | |
3709 | } else if (bm->bgp != NULL) { | |
3710 | struct listnode *bgpnode, *nbgpnode; | |
3711 | ||
3712 | for (ALL_LIST_ELEMENTS(bm->bgp, bgpnode, nbgpnode, bgp)) | |
3713 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) | |
3714 | if ((range = peer_group_lookup_dynamic_neighbor_range( | |
3715 | group, prefix))) | |
3716 | goto found_range; | |
3717 | } | |
3718 | ||
3719 | found_range: | |
3720 | *listen_range = range; | |
3721 | return (group && range) ? group : NULL; | |
3722 | } | |
3723 | ||
3724 | struct peer *peer_lookup_dynamic_neighbor(struct bgp *bgp, union sockunion *su) | |
3725 | { | |
3726 | struct peer_group *group; | |
3727 | struct bgp *gbgp; | |
3728 | struct peer *peer; | |
3729 | struct prefix prefix; | |
3730 | struct prefix *listen_range; | |
3731 | int dncount; | |
3732 | char buf[PREFIX2STR_BUFFER]; | |
3733 | char buf1[PREFIX2STR_BUFFER]; | |
3734 | ||
3735 | sockunion2hostprefix(su, &prefix); | |
3736 | ||
3737 | /* See if incoming connection matches a configured listen range. */ | |
3738 | group = peer_group_lookup_dynamic_neighbor(bgp, &prefix, &listen_range); | |
3739 | ||
3740 | if (!group) | |
3741 | return NULL; | |
3742 | ||
3743 | ||
3744 | gbgp = group->bgp; | |
3745 | ||
3746 | if (!gbgp) | |
3747 | return NULL; | |
3748 | ||
3749 | prefix2str(&prefix, buf, sizeof(buf)); | |
3750 | prefix2str(listen_range, buf1, sizeof(buf1)); | |
3751 | ||
3752 | if (bgp_debug_neighbor_events(NULL)) | |
3753 | zlog_debug( | |
3754 | "Dynamic Neighbor %s matches group %s listen range %s", | |
3755 | buf, group->name, buf1); | |
3756 | ||
3757 | /* Are we within the listen limit? */ | |
3758 | dncount = gbgp->dynamic_neighbors_count; | |
3759 | ||
3760 | if (dncount >= gbgp->dynamic_neighbors_limit) { | |
3761 | if (bgp_debug_neighbor_events(NULL)) | |
3762 | zlog_debug("Dynamic Neighbor %s rejected - at limit %d", | |
3763 | inet_sutop(su, buf), | |
3764 | gbgp->dynamic_neighbors_limit); | |
3765 | return NULL; | |
3766 | } | |
3767 | ||
3768 | /* Ensure group is not disabled. */ | |
3769 | if (CHECK_FLAG(group->conf->flags, PEER_FLAG_SHUTDOWN)) { | |
3770 | if (bgp_debug_neighbor_events(NULL)) | |
3771 | zlog_debug( | |
3772 | "Dynamic Neighbor %s rejected - group %s disabled", | |
3773 | buf, group->name); | |
3774 | return NULL; | |
3775 | } | |
3776 | ||
3777 | /* Check that at least one AF is activated for the group. */ | |
3778 | if (!peer_group_af_configured(group)) { | |
3779 | if (bgp_debug_neighbor_events(NULL)) | |
3780 | zlog_debug( | |
3781 | "Dynamic Neighbor %s rejected - no AF activated for group %s", | |
3782 | buf, group->name); | |
3783 | return NULL; | |
3784 | } | |
3785 | ||
3786 | /* Create dynamic peer and bind to associated group. */ | |
3787 | peer = peer_create_bind_dynamic_neighbor(gbgp, su, group); | |
3788 | assert(peer); | |
3789 | ||
3790 | gbgp->dynamic_neighbors_count = ++dncount; | |
3791 | ||
3792 | if (bgp_debug_neighbor_events(peer)) | |
3793 | zlog_debug("%s Dynamic Neighbor added, group %s count %d", | |
3794 | peer->host, group->name, dncount); | |
3795 | ||
3796 | return peer; | |
3797 | } | |
3798 | ||
cc32742c | 3799 | static void peer_drop_dynamic_neighbor(struct peer *peer) |
d62a17ae | 3800 | { |
3801 | int dncount = -1; | |
cc32742c | 3802 | if (peer->group->bgp) { |
d62a17ae | 3803 | dncount = peer->group->bgp->dynamic_neighbors_count; |
3804 | if (dncount) | |
3805 | peer->group->bgp->dynamic_neighbors_count = --dncount; | |
3806 | } | |
3807 | if (bgp_debug_neighbor_events(peer)) | |
3808 | zlog_debug("%s dropped from group %s, count %d", peer->host, | |
3809 | peer->group->name, dncount); | |
3810 | } | |
3811 | ||
d62a17ae | 3812 | /* If peer is configured at least one address family return 1. */ |
3813 | int peer_active(struct peer *peer) | |
3814 | { | |
3815 | if (BGP_PEER_SU_UNSPEC(peer)) | |
3816 | return 0; | |
3817 | if (peer->afc[AFI_IP][SAFI_UNICAST] || peer->afc[AFI_IP][SAFI_MULTICAST] | |
3818 | || peer->afc[AFI_IP][SAFI_LABELED_UNICAST] | |
3819 | || peer->afc[AFI_IP][SAFI_MPLS_VPN] || peer->afc[AFI_IP][SAFI_ENCAP] | |
7c40bf39 | 3820 | || peer->afc[AFI_IP][SAFI_FLOWSPEC] |
d62a17ae | 3821 | || peer->afc[AFI_IP6][SAFI_UNICAST] |
3822 | || peer->afc[AFI_IP6][SAFI_MULTICAST] | |
3823 | || peer->afc[AFI_IP6][SAFI_LABELED_UNICAST] | |
3824 | || peer->afc[AFI_IP6][SAFI_MPLS_VPN] | |
3825 | || peer->afc[AFI_IP6][SAFI_ENCAP] | |
7c40bf39 | 3826 | || peer->afc[AFI_IP6][SAFI_FLOWSPEC] |
d62a17ae | 3827 | || peer->afc[AFI_L2VPN][SAFI_EVPN]) |
3828 | return 1; | |
3829 | return 0; | |
3830 | } | |
3831 | ||
3832 | /* If peer is negotiated at least one address family return 1. */ | |
3833 | int peer_active_nego(struct peer *peer) | |
3834 | { | |
3835 | if (peer->afc_nego[AFI_IP][SAFI_UNICAST] | |
3836 | || peer->afc_nego[AFI_IP][SAFI_MULTICAST] | |
3837 | || peer->afc_nego[AFI_IP][SAFI_LABELED_UNICAST] | |
3838 | || peer->afc_nego[AFI_IP][SAFI_MPLS_VPN] | |
3839 | || peer->afc_nego[AFI_IP][SAFI_ENCAP] | |
7c40bf39 | 3840 | || peer->afc_nego[AFI_IP][SAFI_FLOWSPEC] |
d62a17ae | 3841 | || peer->afc_nego[AFI_IP6][SAFI_UNICAST] |
3842 | || peer->afc_nego[AFI_IP6][SAFI_MULTICAST] | |
3843 | || peer->afc_nego[AFI_IP6][SAFI_LABELED_UNICAST] | |
3844 | || peer->afc_nego[AFI_IP6][SAFI_MPLS_VPN] | |
3845 | || peer->afc_nego[AFI_IP6][SAFI_ENCAP] | |
7c40bf39 | 3846 | || peer->afc_nego[AFI_IP6][SAFI_FLOWSPEC] |
d62a17ae | 3847 | || peer->afc_nego[AFI_L2VPN][SAFI_EVPN]) |
3848 | return 1; | |
3849 | return 0; | |
3850 | } | |
3851 | ||
dcc68b5e | 3852 | void peer_change_action(struct peer *peer, afi_t afi, safi_t safi, |
d62a17ae | 3853 | enum peer_change_type type) |
3854 | { | |
3855 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
3856 | return; | |
3857 | ||
3858 | if (peer->status != Established) | |
3859 | return; | |
3860 | ||
3861 | if (type == peer_change_reset) { | |
3862 | /* If we're resetting session, we've to delete both peer struct | |
3863 | */ | |
3864 | if ((peer->doppelganger) | |
3865 | && (peer->doppelganger->status != Deleted) | |
3866 | && (!CHECK_FLAG(peer->doppelganger->flags, | |
3867 | PEER_FLAG_CONFIG_NODE))) | |
3868 | peer_delete(peer->doppelganger); | |
3869 | ||
3870 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3871 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
3872 | } else if (type == peer_change_reset_in) { | |
3873 | if (CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_OLD_RCV) | |
3874 | || CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_NEW_RCV)) | |
3875 | bgp_route_refresh_send(peer, afi, safi, 0, 0, 0); | |
3876 | else { | |
3877 | if ((peer->doppelganger) | |
3878 | && (peer->doppelganger->status != Deleted) | |
3879 | && (!CHECK_FLAG(peer->doppelganger->flags, | |
3880 | PEER_FLAG_CONFIG_NODE))) | |
3881 | peer_delete(peer->doppelganger); | |
3882 | ||
3883 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3884 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
3885 | } | |
3886 | } else if (type == peer_change_reset_out) { | |
3887 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
3888 | bgp_announce_route(peer, afi, safi); | |
3889 | } | |
3890 | } | |
3891 | ||
3892 | struct peer_flag_action { | |
3893 | /* Peer's flag. */ | |
d7c0a89a | 3894 | uint32_t flag; |
d62a17ae | 3895 | |
3896 | /* This flag can be set for peer-group member. */ | |
d7c0a89a | 3897 | uint8_t not_for_member; |
d62a17ae | 3898 | |
3899 | /* Action when the flag is changed. */ | |
3900 | enum peer_change_type type; | |
d62a17ae | 3901 | }; |
3902 | ||
3903 | static const struct peer_flag_action peer_flag_action_list[] = { | |
3904 | {PEER_FLAG_PASSIVE, 0, peer_change_reset}, | |
3905 | {PEER_FLAG_SHUTDOWN, 0, peer_change_reset}, | |
3906 | {PEER_FLAG_DONT_CAPABILITY, 0, peer_change_none}, | |
3907 | {PEER_FLAG_OVERRIDE_CAPABILITY, 0, peer_change_none}, | |
3908 | {PEER_FLAG_STRICT_CAP_MATCH, 0, peer_change_none}, | |
3909 | {PEER_FLAG_DYNAMIC_CAPABILITY, 0, peer_change_reset}, | |
3910 | {PEER_FLAG_DISABLE_CONNECTED_CHECK, 0, peer_change_reset}, | |
3911 | {PEER_FLAG_CAPABILITY_ENHE, 0, peer_change_reset}, | |
47cbc09b | 3912 | {PEER_FLAG_ENFORCE_FIRST_AS, 0, peer_change_reset_in}, |
afad5ced | 3913 | {PEER_FLAG_IFPEER_V6ONLY, 0, peer_change_reset}, |
b90a8e13 PM |
3914 | {PEER_FLAG_ROUTEADV, 0, peer_change_none}, |
3915 | {PEER_FLAG_TIMER, 0, peer_change_none}, | |
3916 | {PEER_FLAG_TIMER_CONNECT, 0, peer_change_none}, | |
a14810f4 PM |
3917 | {PEER_FLAG_PASSWORD, 0, peer_change_none}, |
3918 | {PEER_FLAG_LOCAL_AS, 0, peer_change_none}, | |
3919 | {PEER_FLAG_LOCAL_AS_NO_PREPEND, 0, peer_change_none}, | |
3920 | {PEER_FLAG_LOCAL_AS_REPLACE_AS, 0, peer_change_none}, | |
3921 | {PEER_FLAG_UPDATE_SOURCE, 0, peer_change_none}, | |
d62a17ae | 3922 | {0, 0, 0}}; |
3923 | ||
3924 | static const struct peer_flag_action peer_af_flag_action_list[] = { | |
3925 | {PEER_FLAG_SEND_COMMUNITY, 1, peer_change_reset_out}, | |
3926 | {PEER_FLAG_SEND_EXT_COMMUNITY, 1, peer_change_reset_out}, | |
3927 | {PEER_FLAG_SEND_LARGE_COMMUNITY, 1, peer_change_reset_out}, | |
3928 | {PEER_FLAG_NEXTHOP_SELF, 1, peer_change_reset_out}, | |
3929 | {PEER_FLAG_REFLECTOR_CLIENT, 1, peer_change_reset}, | |
3930 | {PEER_FLAG_RSERVER_CLIENT, 1, peer_change_reset}, | |
3931 | {PEER_FLAG_SOFT_RECONFIG, 0, peer_change_reset_in}, | |
3932 | {PEER_FLAG_AS_PATH_UNCHANGED, 1, peer_change_reset_out}, | |
3933 | {PEER_FLAG_NEXTHOP_UNCHANGED, 1, peer_change_reset_out}, | |
3934 | {PEER_FLAG_MED_UNCHANGED, 1, peer_change_reset_out}, | |
598ce6bd | 3935 | {PEER_FLAG_DEFAULT_ORIGINATE, 0, peer_change_none}, |
d62a17ae | 3936 | {PEER_FLAG_REMOVE_PRIVATE_AS, 1, peer_change_reset_out}, |
3937 | {PEER_FLAG_ALLOWAS_IN, 0, peer_change_reset_in}, | |
3938 | {PEER_FLAG_ALLOWAS_IN_ORIGIN, 0, peer_change_reset_in}, | |
3939 | {PEER_FLAG_ORF_PREFIX_SM, 1, peer_change_reset}, | |
3940 | {PEER_FLAG_ORF_PREFIX_RM, 1, peer_change_reset}, | |
598ce6bd PM |
3941 | {PEER_FLAG_MAX_PREFIX, 0, peer_change_none}, |
3942 | {PEER_FLAG_MAX_PREFIX_WARNING, 0, peer_change_none}, | |
d62a17ae | 3943 | {PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED, 0, peer_change_reset_out}, |
3944 | {PEER_FLAG_FORCE_NEXTHOP_SELF, 1, peer_change_reset_out}, | |
3945 | {PEER_FLAG_REMOVE_PRIVATE_AS_ALL, 1, peer_change_reset_out}, | |
3946 | {PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE, 1, peer_change_reset_out}, | |
3947 | {PEER_FLAG_AS_OVERRIDE, 1, peer_change_reset_out}, | |
3948 | {PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE, 1, peer_change_reset_out}, | |
d62a17ae | 3949 | {PEER_FLAG_WEIGHT, 0, peer_change_reset_in}, |
3950 | {0, 0, 0}}; | |
3951 | ||
3952 | /* Proper action set. */ | |
3953 | static int peer_flag_action_set(const struct peer_flag_action *action_list, | |
3954 | int size, struct peer_flag_action *action, | |
d7c0a89a | 3955 | uint32_t flag) |
d62a17ae | 3956 | { |
3957 | int i; | |
3958 | int found = 0; | |
3959 | int reset_in = 0; | |
3960 | int reset_out = 0; | |
3961 | const struct peer_flag_action *match = NULL; | |
3962 | ||
3963 | /* Check peer's frag action. */ | |
3964 | for (i = 0; i < size; i++) { | |
3965 | match = &action_list[i]; | |
3966 | ||
3967 | if (match->flag == 0) | |
3968 | break; | |
3969 | ||
3970 | if (match->flag & flag) { | |
3971 | found = 1; | |
3972 | ||
3973 | if (match->type == peer_change_reset_in) | |
3974 | reset_in = 1; | |
3975 | if (match->type == peer_change_reset_out) | |
3976 | reset_out = 1; | |
3977 | if (match->type == peer_change_reset) { | |
3978 | reset_in = 1; | |
3979 | reset_out = 1; | |
3980 | } | |
3981 | if (match->not_for_member) | |
3982 | action->not_for_member = 1; | |
3983 | } | |
3984 | } | |
3985 | ||
3986 | /* Set peer clear type. */ | |
3987 | if (reset_in && reset_out) | |
3988 | action->type = peer_change_reset; | |
3989 | else if (reset_in) | |
3990 | action->type = peer_change_reset_in; | |
3991 | else if (reset_out) | |
3992 | action->type = peer_change_reset_out; | |
3993 | else | |
3994 | action->type = peer_change_none; | |
3995 | ||
3996 | return found; | |
3997 | } | |
3998 | ||
d7c0a89a | 3999 | static void peer_flag_modify_action(struct peer *peer, uint32_t flag) |
d62a17ae | 4000 | { |
4001 | if (flag == PEER_FLAG_SHUTDOWN) { | |
4002 | if (CHECK_FLAG(peer->flags, flag)) { | |
4003 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT)) | |
4004 | peer_nsf_stop(peer); | |
4005 | ||
4006 | UNSET_FLAG(peer->sflags, PEER_STATUS_PREFIX_OVERFLOW); | |
4007 | if (peer->t_pmax_restart) { | |
4008 | BGP_TIMER_OFF(peer->t_pmax_restart); | |
4009 | if (bgp_debug_neighbor_events(peer)) | |
4010 | zlog_debug( | |
4011 | "%s Maximum-prefix restart timer canceled", | |
4012 | peer->host); | |
4013 | } | |
4014 | ||
4015 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT)) | |
4016 | peer_nsf_stop(peer); | |
4017 | ||
4018 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
4019 | char *msg = peer->tx_shutdown_message; | |
4020 | size_t msglen; | |
4021 | ||
4022 | if (!msg && peer_group_active(peer)) | |
4023 | msg = peer->group->conf | |
4024 | ->tx_shutdown_message; | |
4025 | msglen = msg ? strlen(msg) : 0; | |
4026 | if (msglen > 128) | |
4027 | msglen = 128; | |
4028 | ||
4029 | if (msglen) { | |
d7c0a89a | 4030 | uint8_t msgbuf[129]; |
d62a17ae | 4031 | |
4032 | msgbuf[0] = msglen; | |
4033 | memcpy(msgbuf + 1, msg, msglen); | |
4034 | ||
4035 | bgp_notify_send_with_data( | |
4036 | peer, BGP_NOTIFY_CEASE, | |
4037 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN, | |
4038 | msgbuf, msglen + 1); | |
4039 | } else | |
4040 | bgp_notify_send( | |
4041 | peer, BGP_NOTIFY_CEASE, | |
4042 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN); | |
4043 | } else | |
4044 | bgp_session_reset(peer); | |
4045 | } else { | |
4046 | peer->v_start = BGP_INIT_START_TIMER; | |
4047 | BGP_EVENT_ADD(peer, BGP_Stop); | |
4048 | } | |
4049 | } else if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
4050 | if (flag == PEER_FLAG_DYNAMIC_CAPABILITY) | |
4051 | peer->last_reset = PEER_DOWN_CAPABILITY_CHANGE; | |
4052 | else if (flag == PEER_FLAG_PASSIVE) | |
4053 | peer->last_reset = PEER_DOWN_PASSIVE_CHANGE; | |
4054 | else if (flag == PEER_FLAG_DISABLE_CONNECTED_CHECK) | |
4055 | peer->last_reset = PEER_DOWN_MULTIHOP_CHANGE; | |
4056 | ||
4057 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4058 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4059 | } else | |
4060 | bgp_session_reset(peer); | |
4061 | } | |
4062 | ||
4063 | /* Change specified peer flag. */ | |
d7c0a89a | 4064 | static int peer_flag_modify(struct peer *peer, uint32_t flag, int set) |
d62a17ae | 4065 | { |
4066 | int found; | |
4067 | int size; | |
9fb964de PM |
4068 | bool invert, member_invert; |
4069 | struct peer *member; | |
d62a17ae | 4070 | struct listnode *node, *nnode; |
4071 | struct peer_flag_action action; | |
4072 | ||
4073 | memset(&action, 0, sizeof(struct peer_flag_action)); | |
4074 | size = sizeof peer_flag_action_list / sizeof(struct peer_flag_action); | |
4075 | ||
9fb964de | 4076 | invert = CHECK_FLAG(peer->flags_invert, flag); |
d62a17ae | 4077 | found = peer_flag_action_set(peer_flag_action_list, size, &action, |
4078 | flag); | |
4079 | ||
9fb964de | 4080 | /* Abort if no flag action exists. */ |
d62a17ae | 4081 | if (!found) |
4082 | return BGP_ERR_INVALID_FLAG; | |
4083 | ||
9fb964de | 4084 | /* Check for flag conflict: STRICT_CAP_MATCH && OVERRIDE_CAPABILITY */ |
d62a17ae | 4085 | if (set && CHECK_FLAG(peer->flags | flag, PEER_FLAG_STRICT_CAP_MATCH) |
4086 | && CHECK_FLAG(peer->flags | flag, PEER_FLAG_OVERRIDE_CAPABILITY)) | |
4087 | return BGP_ERR_PEER_FLAG_CONFLICT; | |
4088 | ||
9fb964de | 4089 | /* Handle flag updates where desired state matches current state. */ |
d62a17ae | 4090 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
9fb964de PM |
4091 | if (set && CHECK_FLAG(peer->flags, flag)) { |
4092 | COND_FLAG(peer->flags_override, flag, !invert); | |
d62a17ae | 4093 | return 0; |
9fb964de PM |
4094 | } |
4095 | ||
4096 | if (!set && !CHECK_FLAG(peer->flags, flag)) { | |
4097 | COND_FLAG(peer->flags_override, flag, invert); | |
d62a17ae | 4098 | return 0; |
9fb964de | 4099 | } |
d62a17ae | 4100 | } |
4101 | ||
9fb964de PM |
4102 | /* Inherit from peer-group or set/unset flags accordingly. */ |
4103 | if (peer_group_active(peer) && set == invert) | |
4104 | peer_flag_inherit(peer, flag); | |
d62a17ae | 4105 | else |
9fb964de | 4106 | COND_FLAG(peer->flags, flag, set); |
d62a17ae | 4107 | |
9fb964de | 4108 | /* Check if handling a regular peer. */ |
d62a17ae | 4109 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
9fb964de PM |
4110 | /* Update flag override state accordingly. */ |
4111 | COND_FLAG(peer->flags_override, flag, set != invert); | |
4112 | ||
4113 | /* Execute flag action on peer. */ | |
d62a17ae | 4114 | if (action.type == peer_change_reset) |
4115 | peer_flag_modify_action(peer, flag); | |
4116 | ||
9fb964de | 4117 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 4118 | return 0; |
4119 | } | |
4120 | ||
1ea03b90 DS |
4121 | if (set && flag == PEER_FLAG_CAPABILITY_ENHE) |
4122 | bgp_nht_register_enhe_capability_interfaces(peer); | |
4123 | ||
9fb964de PM |
4124 | /* |
4125 | * Update peer-group members, unless they are explicitely overriding | |
4126 | * peer-group configuration. | |
4127 | */ | |
4128 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4129 | /* Skip peers with overridden configuration. */ | |
4130 | if (CHECK_FLAG(member->flags_override, flag)) | |
4131 | continue; | |
d62a17ae | 4132 | |
527de3dc PM |
4133 | /* Check if only member without group is inverted. */ |
4134 | member_invert = | |
4135 | CHECK_FLAG(member->flags_invert, flag) && !invert; | |
d62a17ae | 4136 | |
9fb964de PM |
4137 | /* Skip peers with equivalent configuration. */ |
4138 | if (set != member_invert && CHECK_FLAG(member->flags, flag)) | |
d62a17ae | 4139 | continue; |
4140 | ||
9fb964de | 4141 | if (set == member_invert && !CHECK_FLAG(member->flags, flag)) |
d62a17ae | 4142 | continue; |
4143 | ||
9fb964de PM |
4144 | /* Update flag on peer-group member. */ |
4145 | COND_FLAG(member->flags, flag, set != member_invert); | |
d62a17ae | 4146 | |
1ea03b90 DS |
4147 | if (set && flag == PEER_FLAG_CAPABILITY_ENHE) |
4148 | bgp_nht_register_enhe_capability_interfaces(member); | |
4149 | ||
9fb964de | 4150 | /* Execute flag action on peer-group member. */ |
d62a17ae | 4151 | if (action.type == peer_change_reset) |
9fb964de | 4152 | peer_flag_modify_action(member, flag); |
d62a17ae | 4153 | } |
9fb964de | 4154 | |
d62a17ae | 4155 | return 0; |
4156 | } | |
4157 | ||
d7c0a89a | 4158 | int peer_flag_set(struct peer *peer, uint32_t flag) |
d62a17ae | 4159 | { |
4160 | return peer_flag_modify(peer, flag, 1); | |
4161 | } | |
4162 | ||
d7c0a89a | 4163 | int peer_flag_unset(struct peer *peer, uint32_t flag) |
d62a17ae | 4164 | { |
4165 | return peer_flag_modify(peer, flag, 0); | |
4166 | } | |
4167 | ||
4168 | static int peer_af_flag_modify(struct peer *peer, afi_t afi, safi_t safi, | |
27c05d4d | 4169 | uint32_t flag, bool set) |
d62a17ae | 4170 | { |
4171 | int found; | |
4172 | int size; | |
527de3dc | 4173 | bool invert, member_invert; |
527de3dc | 4174 | struct peer *member; |
d62a17ae | 4175 | struct listnode *node, *nnode; |
d62a17ae | 4176 | struct peer_flag_action action; |
d62a17ae | 4177 | |
4178 | memset(&action, 0, sizeof(struct peer_flag_action)); | |
4179 | size = sizeof peer_af_flag_action_list | |
4180 | / sizeof(struct peer_flag_action); | |
4181 | ||
27c05d4d | 4182 | invert = CHECK_FLAG(peer->af_flags_invert[afi][safi], flag); |
d62a17ae | 4183 | found = peer_flag_action_set(peer_af_flag_action_list, size, &action, |
4184 | flag); | |
4185 | ||
527de3dc | 4186 | /* Abort if flag action exists. */ |
d62a17ae | 4187 | if (!found) |
4188 | return BGP_ERR_INVALID_FLAG; | |
4189 | ||
4190 | /* Special check for reflector client. */ | |
4191 | if (flag & PEER_FLAG_REFLECTOR_CLIENT | |
4192 | && peer_sort(peer) != BGP_PEER_IBGP) | |
4193 | return BGP_ERR_NOT_INTERNAL_PEER; | |
4194 | ||
4195 | /* Special check for remove-private-AS. */ | |
4196 | if (flag & PEER_FLAG_REMOVE_PRIVATE_AS | |
4197 | && peer_sort(peer) == BGP_PEER_IBGP) | |
4198 | return BGP_ERR_REMOVE_PRIVATE_AS; | |
4199 | ||
4200 | /* as-override is not allowed for IBGP peers */ | |
4201 | if (flag & PEER_FLAG_AS_OVERRIDE && peer_sort(peer) == BGP_PEER_IBGP) | |
4202 | return BGP_ERR_AS_OVERRIDE; | |
4203 | ||
527de3dc | 4204 | /* Handle flag updates where desired state matches current state. */ |
d62a17ae | 4205 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
598ce6bd | 4206 | if (set && CHECK_FLAG(peer->af_flags[afi][safi], flag)) { |
527de3dc PM |
4207 | COND_FLAG(peer->af_flags_override[afi][safi], flag, |
4208 | !invert); | |
d62a17ae | 4209 | return 0; |
598ce6bd PM |
4210 | } |
4211 | ||
4212 | if (!set && !CHECK_FLAG(peer->af_flags[afi][safi], flag)) { | |
527de3dc PM |
4213 | COND_FLAG(peer->af_flags_override[afi][safi], flag, |
4214 | invert); | |
d62a17ae | 4215 | return 0; |
598ce6bd | 4216 | } |
d62a17ae | 4217 | } |
4218 | ||
ace295a9 MK |
4219 | /* |
4220 | * For EVPN we implicitly set the NEXTHOP_UNCHANGED flag, | |
4221 | * if we are setting/unsetting flags which conflict with this flag | |
4222 | * handle accordingly | |
4223 | */ | |
4224 | if (afi == AFI_L2VPN && safi == SAFI_EVPN) { | |
4225 | if (set) { | |
4226 | ||
3518f352 DS |
4227 | /* |
4228 | * if we are setting NEXTHOP_SELF, we need to unset the | |
4229 | * NEXTHOP_UNCHANGED flag | |
4230 | */ | |
ace295a9 MK |
4231 | if (CHECK_FLAG(flag, PEER_FLAG_NEXTHOP_SELF) || |
4232 | CHECK_FLAG(flag, PEER_FLAG_FORCE_NEXTHOP_SELF)) | |
4233 | UNSET_FLAG(peer->af_flags[afi][safi], | |
4234 | PEER_FLAG_NEXTHOP_UNCHANGED); | |
4235 | } else { | |
4236 | ||
3518f352 DS |
4237 | /* |
4238 | * if we are unsetting NEXTHOP_SELF, we need to set the | |
ace295a9 MK |
4239 | * NEXTHOP_UNCHANGED flag to reset the defaults for EVPN |
4240 | */ | |
4241 | if (CHECK_FLAG(flag, PEER_FLAG_NEXTHOP_SELF) || | |
4242 | CHECK_FLAG(flag, PEER_FLAG_FORCE_NEXTHOP_SELF)) | |
4243 | SET_FLAG(peer->af_flags[afi][safi], | |
4244 | PEER_FLAG_NEXTHOP_UNCHANGED); | |
4245 | } | |
4246 | } | |
4247 | ||
527de3dc PM |
4248 | /* Inherit from peer-group or set/unset flags accordingly. */ |
4249 | if (peer_group_active(peer) && set == invert) | |
4250 | peer_af_flag_inherit(peer, afi, safi, flag); | |
4251 | else | |
4252 | COND_FLAG(peer->af_flags[afi][safi], flag, set); | |
d62a17ae | 4253 | |
4254 | /* Execute action when peer is established. */ | |
4255 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP) | |
4256 | && peer->status == Established) { | |
4257 | if (!set && flag == PEER_FLAG_SOFT_RECONFIG) | |
4258 | bgp_clear_adj_in(peer, afi, safi); | |
4259 | else { | |
4260 | if (flag == PEER_FLAG_REFLECTOR_CLIENT) | |
4261 | peer->last_reset = PEER_DOWN_RR_CLIENT_CHANGE; | |
4262 | else if (flag == PEER_FLAG_RSERVER_CLIENT) | |
4263 | peer->last_reset = PEER_DOWN_RS_CLIENT_CHANGE; | |
4264 | else if (flag == PEER_FLAG_ORF_PREFIX_SM) | |
4265 | peer->last_reset = PEER_DOWN_CAPABILITY_CHANGE; | |
4266 | else if (flag == PEER_FLAG_ORF_PREFIX_RM) | |
4267 | peer->last_reset = PEER_DOWN_CAPABILITY_CHANGE; | |
4268 | ||
4269 | peer_change_action(peer, afi, safi, action.type); | |
4270 | } | |
4271 | } | |
4272 | ||
527de3dc PM |
4273 | /* Check if handling a regular peer. */ |
4274 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4275 | COND_FLAG(peer->af_flags_override[afi][safi], flag, | |
4276 | set != invert); | |
4277 | } else { | |
4278 | /* | |
4279 | * Update peer-group members, unless they are explicitely | |
4280 | * overriding peer-group configuration. | |
4281 | */ | |
4282 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, | |
4283 | member)) { | |
4284 | /* Skip peers with overridden configuration. */ | |
4285 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
598ce6bd PM |
4286 | flag)) |
4287 | continue; | |
4288 | ||
527de3dc PM |
4289 | /* Check if only member without group is inverted. */ |
4290 | member_invert = | |
4291 | CHECK_FLAG(member->af_flags_invert[afi][safi], | |
4292 | flag) | |
4293 | && !invert; | |
4294 | ||
4295 | /* Skip peers with equivalent configuration. */ | |
4296 | if (set != member_invert | |
4297 | && CHECK_FLAG(member->af_flags[afi][safi], flag)) | |
d62a17ae | 4298 | continue; |
4299 | ||
527de3dc PM |
4300 | if (set == member_invert |
4301 | && !CHECK_FLAG(member->af_flags[afi][safi], flag)) | |
d62a17ae | 4302 | continue; |
4303 | ||
527de3dc PM |
4304 | /* Update flag on peer-group member. */ |
4305 | COND_FLAG(member->af_flags[afi][safi], flag, | |
4306 | set != member_invert); | |
d62a17ae | 4307 | |
527de3dc PM |
4308 | /* Execute flag action on peer-group member. */ |
4309 | if (member->status == Established) { | |
d62a17ae | 4310 | if (!set && flag == PEER_FLAG_SOFT_RECONFIG) |
527de3dc | 4311 | bgp_clear_adj_in(member, afi, safi); |
d62a17ae | 4312 | else { |
4313 | if (flag == PEER_FLAG_REFLECTOR_CLIENT) | |
527de3dc | 4314 | member->last_reset = |
d62a17ae | 4315 | PEER_DOWN_RR_CLIENT_CHANGE; |
4316 | else if (flag | |
4317 | == PEER_FLAG_RSERVER_CLIENT) | |
527de3dc | 4318 | member->last_reset = |
d62a17ae | 4319 | PEER_DOWN_RS_CLIENT_CHANGE; |
4320 | else if (flag | |
4321 | == PEER_FLAG_ORF_PREFIX_SM) | |
527de3dc | 4322 | member->last_reset = |
d62a17ae | 4323 | PEER_DOWN_CAPABILITY_CHANGE; |
4324 | else if (flag | |
4325 | == PEER_FLAG_ORF_PREFIX_RM) | |
527de3dc | 4326 | member->last_reset = |
d62a17ae | 4327 | PEER_DOWN_CAPABILITY_CHANGE; |
4328 | ||
527de3dc | 4329 | peer_change_action(member, afi, safi, |
d62a17ae | 4330 | action.type); |
4331 | } | |
4332 | } | |
4333 | } | |
4334 | } | |
4335 | ||
d62a17ae | 4336 | return 0; |
4337 | } | |
4338 | ||
d7c0a89a | 4339 | int peer_af_flag_set(struct peer *peer, afi_t afi, safi_t safi, uint32_t flag) |
d62a17ae | 4340 | { |
4341 | return peer_af_flag_modify(peer, afi, safi, flag, 1); | |
4342 | } | |
4343 | ||
d7c0a89a | 4344 | int peer_af_flag_unset(struct peer *peer, afi_t afi, safi_t safi, uint32_t flag) |
d62a17ae | 4345 | { |
4346 | return peer_af_flag_modify(peer, afi, safi, flag, 0); | |
4347 | } | |
4348 | ||
4349 | ||
4350 | int peer_tx_shutdown_message_set(struct peer *peer, const char *msg) | |
4351 | { | |
4352 | XFREE(MTYPE_PEER_TX_SHUTDOWN_MSG, peer->tx_shutdown_message); | |
4353 | peer->tx_shutdown_message = | |
4354 | msg ? XSTRDUP(MTYPE_PEER_TX_SHUTDOWN_MSG, msg) : NULL; | |
4355 | return 0; | |
4356 | } | |
4357 | ||
4358 | int peer_tx_shutdown_message_unset(struct peer *peer) | |
4359 | { | |
4360 | XFREE(MTYPE_PEER_TX_SHUTDOWN_MSG, peer->tx_shutdown_message); | |
4361 | return 0; | |
4362 | } | |
4363 | ||
4364 | ||
4365 | /* EBGP multihop configuration. */ | |
4366 | int peer_ebgp_multihop_set(struct peer *peer, int ttl) | |
4367 | { | |
4368 | struct peer_group *group; | |
4369 | struct listnode *node, *nnode; | |
4370 | struct peer *peer1; | |
4371 | ||
4372 | if (peer->sort == BGP_PEER_IBGP || peer->conf_if) | |
4373 | return 0; | |
4374 | ||
4375 | /* see comment in peer_ttl_security_hops_set() */ | |
4376 | if (ttl != MAXTTL) { | |
4377 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4378 | group = peer->group; | |
4379 | if (group->conf->gtsm_hops != 0) | |
4380 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
4381 | ||
4382 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, | |
4383 | peer1)) { | |
4384 | if (peer1->sort == BGP_PEER_IBGP) | |
4385 | continue; | |
4386 | ||
4387 | if (peer1->gtsm_hops != 0) | |
4388 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
4389 | } | |
4390 | } else { | |
4391 | if (peer->gtsm_hops != 0) | |
4392 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
4393 | } | |
4394 | } | |
4395 | ||
4396 | peer->ttl = ttl; | |
4397 | ||
4398 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4399 | if (peer->fd >= 0 && peer->sort != BGP_PEER_IBGP) { | |
4400 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
4401 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4402 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4403 | else | |
4404 | bgp_session_reset(peer); | |
4405 | } | |
4406 | } else { | |
4407 | group = peer->group; | |
4408 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
4409 | if (peer->sort == BGP_PEER_IBGP) | |
4410 | continue; | |
4411 | ||
4412 | peer->ttl = group->conf->ttl; | |
4413 | ||
4414 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
4415 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4416 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4417 | else | |
4418 | bgp_session_reset(peer); | |
4419 | } | |
4420 | } | |
4421 | return 0; | |
4422 | } | |
4423 | ||
4424 | int peer_ebgp_multihop_unset(struct peer *peer) | |
4425 | { | |
4426 | struct peer_group *group; | |
4427 | struct listnode *node, *nnode; | |
4428 | ||
4429 | if (peer->sort == BGP_PEER_IBGP) | |
4430 | return 0; | |
4431 | ||
4432 | if (peer->gtsm_hops != 0 && peer->ttl != MAXTTL) | |
4433 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
4434 | ||
4435 | if (peer_group_active(peer)) | |
4436 | peer->ttl = peer->group->conf->ttl; | |
4437 | else | |
a0903cd2 | 4438 | peer->ttl = BGP_DEFAULT_TTL; |
d62a17ae | 4439 | |
4440 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4441 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
4442 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4443 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4444 | else | |
4445 | bgp_session_reset(peer); | |
4446 | } else { | |
4447 | group = peer->group; | |
4448 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
4449 | if (peer->sort == BGP_PEER_IBGP) | |
4450 | continue; | |
4451 | ||
a0903cd2 | 4452 | peer->ttl = BGP_DEFAULT_TTL; |
d62a17ae | 4453 | |
4454 | if (peer->fd >= 0) { | |
4455 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
4456 | bgp_notify_send( | |
4457 | peer, BGP_NOTIFY_CEASE, | |
4458 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4459 | else | |
4460 | bgp_session_reset(peer); | |
4461 | } | |
4462 | } | |
4463 | } | |
4464 | return 0; | |
4465 | } | |
4466 | ||
4467 | /* Neighbor description. */ | |
4468 | int peer_description_set(struct peer *peer, const char *desc) | |
4469 | { | |
0a22ddfb | 4470 | XFREE(MTYPE_PEER_DESC, peer->desc); |
d62a17ae | 4471 | |
4472 | peer->desc = XSTRDUP(MTYPE_PEER_DESC, desc); | |
4473 | ||
4474 | return 0; | |
4475 | } | |
4476 | ||
4477 | int peer_description_unset(struct peer *peer) | |
4478 | { | |
0a22ddfb | 4479 | XFREE(MTYPE_PEER_DESC, peer->desc); |
d62a17ae | 4480 | |
4481 | peer->desc = NULL; | |
4482 | ||
4483 | return 0; | |
4484 | } | |
4485 | ||
4486 | /* Neighbor update-source. */ | |
4487 | int peer_update_source_if_set(struct peer *peer, const char *ifname) | |
4488 | { | |
a14810f4 | 4489 | struct peer *member; |
d62a17ae | 4490 | struct listnode *node, *nnode; |
4491 | ||
a14810f4 PM |
4492 | /* Set flag and configuration on peer. */ |
4493 | peer_flag_set(peer, PEER_FLAG_UPDATE_SOURCE); | |
d62a17ae | 4494 | if (peer->update_if) { |
a14810f4 | 4495 | if (strcmp(peer->update_if, ifname) == 0) |
d62a17ae | 4496 | return 0; |
d62a17ae | 4497 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); |
d62a17ae | 4498 | } |
d62a17ae | 4499 | peer->update_if = XSTRDUP(MTYPE_PEER_UPDATE_SOURCE, ifname); |
a14810f4 PM |
4500 | sockunion_free(peer->update_source); |
4501 | peer->update_source = NULL; | |
d62a17ae | 4502 | |
a14810f4 | 4503 | /* Check if handling a regular peer. */ |
d62a17ae | 4504 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 4505 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 4506 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
4507 | peer->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4508 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4509 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4510 | } else | |
4511 | bgp_session_reset(peer); | |
a14810f4 PM |
4512 | |
4513 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 4514 | return 0; |
4515 | } | |
4516 | ||
a14810f4 PM |
4517 | /* |
4518 | * Set flag and configuration on all peer-group members, unless they are | |
4519 | * explicitely overriding peer-group configuration. | |
4520 | */ | |
4521 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4522 | /* Skip peers with overridden configuration. */ | |
4523 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_UPDATE_SOURCE)) | |
4524 | continue; | |
d62a17ae | 4525 | |
a14810f4 PM |
4526 | /* Skip peers with the same configuration. */ |
4527 | if (member->update_if) { | |
4528 | if (strcmp(member->update_if, ifname) == 0) | |
4529 | continue; | |
4530 | XFREE(MTYPE_PEER_UPDATE_SOURCE, member->update_if); | |
d62a17ae | 4531 | } |
4532 | ||
a14810f4 PM |
4533 | /* Set flag and configuration on peer-group member. */ |
4534 | SET_FLAG(member->flags, PEER_FLAG_UPDATE_SOURCE); | |
4535 | member->update_if = XSTRDUP(MTYPE_PEER_UPDATE_SOURCE, ifname); | |
4536 | sockunion_free(member->update_source); | |
4537 | member->update_source = NULL; | |
4538 | ||
4539 | /* Send notification or reset peer depending on state. */ | |
4540 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) { | |
4541 | member->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4542 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 4543 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
4544 | } else | |
a14810f4 | 4545 | bgp_session_reset(member); |
d62a17ae | 4546 | } |
a14810f4 | 4547 | |
d62a17ae | 4548 | return 0; |
4549 | } | |
4550 | ||
4551 | int peer_update_source_addr_set(struct peer *peer, const union sockunion *su) | |
4552 | { | |
a14810f4 | 4553 | struct peer *member; |
d62a17ae | 4554 | struct listnode *node, *nnode; |
4555 | ||
a14810f4 PM |
4556 | /* Set flag and configuration on peer. */ |
4557 | peer_flag_set(peer, PEER_FLAG_UPDATE_SOURCE); | |
d62a17ae | 4558 | if (peer->update_source) { |
a14810f4 | 4559 | if (sockunion_cmp(peer->update_source, su) == 0) |
d62a17ae | 4560 | return 0; |
4561 | sockunion_free(peer->update_source); | |
d62a17ae | 4562 | } |
d62a17ae | 4563 | peer->update_source = sockunion_dup(su); |
a14810f4 | 4564 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); |
d62a17ae | 4565 | |
a14810f4 | 4566 | /* Check if handling a regular peer. */ |
d62a17ae | 4567 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 4568 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 4569 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
4570 | peer->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4571 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4572 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4573 | } else | |
4574 | bgp_session_reset(peer); | |
a14810f4 PM |
4575 | |
4576 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 4577 | return 0; |
4578 | } | |
4579 | ||
a14810f4 PM |
4580 | /* |
4581 | * Set flag and configuration on all peer-group members, unless they are | |
4582 | * explicitely overriding peer-group configuration. | |
4583 | */ | |
4584 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4585 | /* Skip peers with overridden configuration. */ | |
4586 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_UPDATE_SOURCE)) | |
4587 | continue; | |
d62a17ae | 4588 | |
a14810f4 PM |
4589 | /* Skip peers with the same configuration. */ |
4590 | if (member->update_source) { | |
4591 | if (sockunion_cmp(member->update_source, su) == 0) | |
4592 | continue; | |
4593 | sockunion_free(member->update_source); | |
d62a17ae | 4594 | } |
4595 | ||
a14810f4 PM |
4596 | /* Set flag and configuration on peer-group member. */ |
4597 | SET_FLAG(member->flags, PEER_FLAG_UPDATE_SOURCE); | |
4598 | member->update_source = sockunion_dup(su); | |
4599 | XFREE(MTYPE_PEER_UPDATE_SOURCE, member->update_if); | |
4600 | ||
4601 | /* Send notification or reset peer depending on state. */ | |
4602 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) { | |
4603 | member->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4604 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 4605 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
4606 | } else | |
a14810f4 | 4607 | bgp_session_reset(member); |
d62a17ae | 4608 | } |
a14810f4 | 4609 | |
d62a17ae | 4610 | return 0; |
4611 | } | |
4612 | ||
4613 | int peer_update_source_unset(struct peer *peer) | |
4614 | { | |
a14810f4 | 4615 | struct peer *member; |
d62a17ae | 4616 | struct listnode *node, *nnode; |
4617 | ||
a14810f4 | 4618 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_UPDATE_SOURCE)) |
d62a17ae | 4619 | return 0; |
4620 | ||
a14810f4 PM |
4621 | /* Inherit configuration from peer-group if peer is member. */ |
4622 | if (peer_group_active(peer)) { | |
4623 | peer_flag_inherit(peer, PEER_FLAG_UPDATE_SOURCE); | |
4624 | PEER_SU_ATTR_INHERIT(peer, peer->group, update_source); | |
4625 | PEER_STR_ATTR_INHERIT(peer, peer->group, update_if, | |
4626 | MTYPE_PEER_UPDATE_SOURCE); | |
4627 | } else { | |
4628 | /* Otherwise remove flag and configuration from peer. */ | |
4629 | peer_flag_unset(peer, PEER_FLAG_UPDATE_SOURCE); | |
d62a17ae | 4630 | sockunion_free(peer->update_source); |
4631 | peer->update_source = NULL; | |
d62a17ae | 4632 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); |
d62a17ae | 4633 | } |
4634 | ||
a14810f4 | 4635 | /* Check if handling a regular peer. */ |
d62a17ae | 4636 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 4637 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 4638 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
4639 | peer->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4640 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4641 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4642 | } else | |
4643 | bgp_session_reset(peer); | |
a14810f4 PM |
4644 | |
4645 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 4646 | return 0; |
4647 | } | |
4648 | ||
a14810f4 PM |
4649 | /* |
4650 | * Set flag and configuration on all peer-group members, unless they are | |
4651 | * explicitely overriding peer-group configuration. | |
4652 | */ | |
4653 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4654 | /* Skip peers with overridden configuration. */ | |
4655 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_UPDATE_SOURCE)) | |
d62a17ae | 4656 | continue; |
4657 | ||
a14810f4 PM |
4658 | /* Skip peers with the same configuration. */ |
4659 | if (!CHECK_FLAG(member->flags, PEER_FLAG_UPDATE_SOURCE) | |
4660 | && !member->update_source && !member->update_if) | |
4661 | continue; | |
d62a17ae | 4662 | |
a14810f4 PM |
4663 | /* Remove flag and configuration on peer-group member. */ |
4664 | UNSET_FLAG(member->flags, PEER_FLAG_UPDATE_SOURCE); | |
4665 | sockunion_free(member->update_source); | |
4666 | member->update_source = NULL; | |
4667 | XFREE(MTYPE_PEER_UPDATE_SOURCE, member->update_if); | |
4668 | ||
4669 | /* Send notification or reset peer depending on state. */ | |
4670 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) { | |
4671 | member->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4672 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 4673 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
4674 | } else | |
a14810f4 | 4675 | bgp_session_reset(member); |
d62a17ae | 4676 | } |
a14810f4 | 4677 | |
d62a17ae | 4678 | return 0; |
4679 | } | |
4680 | ||
4681 | int peer_default_originate_set(struct peer *peer, afi_t afi, safi_t safi, | |
1de27621 | 4682 | const char *rmap, struct route_map *route_map) |
d62a17ae | 4683 | { |
598ce6bd | 4684 | struct peer *member; |
d62a17ae | 4685 | struct listnode *node, *nnode; |
4686 | ||
598ce6bd PM |
4687 | /* Set flag and configuration on peer. */ |
4688 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_DEFAULT_ORIGINATE); | |
4689 | if (rmap) { | |
4690 | if (!peer->default_rmap[afi][safi].name | |
4691 | || strcmp(rmap, peer->default_rmap[afi][safi].name) != 0) { | |
d62a17ae | 4692 | if (peer->default_rmap[afi][safi].name) |
4693 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
4694 | peer->default_rmap[afi][safi].name); | |
598ce6bd | 4695 | |
b4897fa5 | 4696 | route_map_counter_decrement(peer->default_rmap[afi][safi].map); |
d62a17ae | 4697 | peer->default_rmap[afi][safi].name = |
4698 | XSTRDUP(MTYPE_ROUTE_MAP_NAME, rmap); | |
1de27621 | 4699 | peer->default_rmap[afi][safi].map = route_map; |
b4897fa5 | 4700 | route_map_counter_increment(route_map); |
d62a17ae | 4701 | } |
598ce6bd PM |
4702 | } else if (!rmap) { |
4703 | if (peer->default_rmap[afi][safi].name) | |
4704 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
4705 | peer->default_rmap[afi][safi].name); | |
4706 | ||
b4897fa5 | 4707 | route_map_counter_decrement(peer->default_rmap[afi][safi].map); |
598ce6bd PM |
4708 | peer->default_rmap[afi][safi].name = NULL; |
4709 | peer->default_rmap[afi][safi].map = NULL; | |
d62a17ae | 4710 | } |
4711 | ||
598ce6bd | 4712 | /* Check if handling a regular peer. */ |
d62a17ae | 4713 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
598ce6bd | 4714 | /* Update peer route announcements. */ |
d62a17ae | 4715 | if (peer->status == Established && peer->afc_nego[afi][safi]) { |
4716 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
4717 | bgp_default_originate(peer, afi, safi, 0); | |
4718 | bgp_announce_route(peer, afi, safi); | |
4719 | } | |
598ce6bd PM |
4720 | |
4721 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 4722 | return 0; |
4723 | } | |
4724 | ||
598ce6bd PM |
4725 | /* |
4726 | * Set flag and configuration on all peer-group members, unless they are | |
4727 | * explicitely overriding peer-group configuration. | |
4728 | */ | |
4729 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4730 | /* Skip peers with overridden configuration. */ | |
4731 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
4732 | PEER_FLAG_DEFAULT_ORIGINATE)) | |
4733 | continue; | |
d62a17ae | 4734 | |
598ce6bd PM |
4735 | /* Set flag and configuration on peer-group member. */ |
4736 | SET_FLAG(member->af_flags[afi][safi], | |
4737 | PEER_FLAG_DEFAULT_ORIGINATE); | |
d62a17ae | 4738 | if (rmap) { |
598ce6bd | 4739 | if (member->default_rmap[afi][safi].name) |
d62a17ae | 4740 | XFREE(MTYPE_ROUTE_MAP_NAME, |
598ce6bd | 4741 | member->default_rmap[afi][safi].name); |
b4897fa5 | 4742 | route_map_counter_decrement( |
4743 | member->default_rmap[afi][safi].map); | |
598ce6bd | 4744 | member->default_rmap[afi][safi].name = |
d62a17ae | 4745 | XSTRDUP(MTYPE_ROUTE_MAP_NAME, rmap); |
1de27621 | 4746 | member->default_rmap[afi][safi].map = route_map; |
b4897fa5 | 4747 | route_map_counter_increment(route_map); |
d62a17ae | 4748 | } |
4749 | ||
598ce6bd PM |
4750 | /* Update peer route announcements. */ |
4751 | if (member->status == Established | |
4752 | && member->afc_nego[afi][safi]) { | |
4753 | update_group_adjust_peer( | |
4754 | peer_af_find(member, afi, safi)); | |
4755 | bgp_default_originate(member, afi, safi, 0); | |
4756 | bgp_announce_route(member, afi, safi); | |
d62a17ae | 4757 | } |
4758 | } | |
598ce6bd | 4759 | |
d62a17ae | 4760 | return 0; |
4761 | } | |
4762 | ||
4763 | int peer_default_originate_unset(struct peer *peer, afi_t afi, safi_t safi) | |
4764 | { | |
598ce6bd | 4765 | struct peer *member; |
d62a17ae | 4766 | struct listnode *node, *nnode; |
4767 | ||
598ce6bd PM |
4768 | /* Inherit configuration from peer-group if peer is member. */ |
4769 | if (peer_group_active(peer)) { | |
4770 | peer_af_flag_inherit(peer, afi, safi, | |
4771 | PEER_FLAG_DEFAULT_ORIGINATE); | |
e7103a96 PM |
4772 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
4773 | default_rmap[afi][safi].name, | |
4774 | MTYPE_ROUTE_MAP_NAME); | |
4775 | PEER_ATTR_INHERIT(peer, peer->group, | |
4776 | default_rmap[afi][safi].map); | |
598ce6bd PM |
4777 | } else { |
4778 | /* Otherwise remove flag and configuration from peer. */ | |
4779 | peer_af_flag_unset(peer, afi, safi, | |
4780 | PEER_FLAG_DEFAULT_ORIGINATE); | |
d62a17ae | 4781 | if (peer->default_rmap[afi][safi].name) |
4782 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
4783 | peer->default_rmap[afi][safi].name); | |
b4897fa5 | 4784 | route_map_counter_decrement(peer->default_rmap[afi][safi].map); |
d62a17ae | 4785 | peer->default_rmap[afi][safi].name = NULL; |
4786 | peer->default_rmap[afi][safi].map = NULL; | |
4787 | } | |
4788 | ||
598ce6bd | 4789 | /* Check if handling a regular peer. */ |
d62a17ae | 4790 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
598ce6bd | 4791 | /* Update peer route announcements. */ |
d62a17ae | 4792 | if (peer->status == Established && peer->afc_nego[afi][safi]) { |
4793 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
4794 | bgp_default_originate(peer, afi, safi, 1); | |
4795 | bgp_announce_route(peer, afi, safi); | |
4796 | } | |
598ce6bd PM |
4797 | |
4798 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 4799 | return 0; |
4800 | } | |
4801 | ||
598ce6bd PM |
4802 | /* |
4803 | * Remove flag and configuration from all peer-group members, unless | |
4804 | * they are explicitely overriding peer-group configuration. | |
4805 | */ | |
4806 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4807 | /* Skip peers with overridden configuration. */ | |
4808 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
4809 | PEER_FLAG_DEFAULT_ORIGINATE)) | |
4810 | continue; | |
4811 | ||
4812 | /* Remove flag and configuration on peer-group member. */ | |
d62a17ae | 4813 | UNSET_FLAG(peer->af_flags[afi][safi], |
4814 | PEER_FLAG_DEFAULT_ORIGINATE); | |
d62a17ae | 4815 | if (peer->default_rmap[afi][safi].name) |
4816 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
4817 | peer->default_rmap[afi][safi].name); | |
b4897fa5 | 4818 | route_map_counter_decrement(peer->default_rmap[afi][safi].map); |
d62a17ae | 4819 | peer->default_rmap[afi][safi].name = NULL; |
4820 | peer->default_rmap[afi][safi].map = NULL; | |
4821 | ||
598ce6bd | 4822 | /* Update peer route announcements. */ |
d62a17ae | 4823 | if (peer->status == Established && peer->afc_nego[afi][safi]) { |
4824 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
4825 | bgp_default_originate(peer, afi, safi, 1); | |
4826 | bgp_announce_route(peer, afi, safi); | |
4827 | } | |
4828 | } | |
598ce6bd | 4829 | |
d62a17ae | 4830 | return 0; |
4831 | } | |
4832 | ||
d7c0a89a | 4833 | int peer_port_set(struct peer *peer, uint16_t port) |
d62a17ae | 4834 | { |
4835 | peer->port = port; | |
4836 | return 0; | |
4837 | } | |
4838 | ||
4839 | int peer_port_unset(struct peer *peer) | |
4840 | { | |
4841 | peer->port = BGP_PORT_DEFAULT; | |
4842 | return 0; | |
4843 | } | |
4844 | ||
4845 | /* | |
4846 | * Helper function that is called after the name of the policy | |
4847 | * being used by a peer has changed (AF specific). Automatically | |
4848 | * initiates inbound or outbound processing as needed. | |
4849 | */ | |
4850 | static void peer_on_policy_change(struct peer *peer, afi_t afi, safi_t safi, | |
4851 | int outbound) | |
4852 | { | |
4853 | if (outbound) { | |
4854 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
4855 | if (peer->status == Established) | |
4856 | bgp_announce_route(peer, afi, safi); | |
4857 | } else { | |
4858 | if (peer->status != Established) | |
4859 | return; | |
4860 | ||
4861 | if (CHECK_FLAG(peer->af_flags[afi][safi], | |
4862 | PEER_FLAG_SOFT_RECONFIG)) | |
4863 | bgp_soft_reconfig_in(peer, afi, safi); | |
4864 | else if (CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_OLD_RCV) | |
4865 | || CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_NEW_RCV)) | |
4866 | bgp_route_refresh_send(peer, afi, safi, 0, 0, 0); | |
4867 | } | |
4868 | } | |
4869 | ||
4870 | ||
4871 | /* neighbor weight. */ | |
d7c0a89a | 4872 | int peer_weight_set(struct peer *peer, afi_t afi, safi_t safi, uint16_t weight) |
d62a17ae | 4873 | { |
598ce6bd | 4874 | struct peer *member; |
d62a17ae | 4875 | struct listnode *node, *nnode; |
4876 | ||
598ce6bd PM |
4877 | /* Set flag and configuration on peer. */ |
4878 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_WEIGHT); | |
d62a17ae | 4879 | if (peer->weight[afi][safi] != weight) { |
4880 | peer->weight[afi][safi] = weight; | |
d62a17ae | 4881 | peer_on_policy_change(peer, afi, safi, 0); |
4882 | } | |
4883 | ||
598ce6bd | 4884 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 4885 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) |
4886 | return 0; | |
4887 | ||
598ce6bd PM |
4888 | /* |
4889 | * Set flag and configuration on all peer-group members, unless they are | |
4890 | * explicitely overriding peer-group configuration. | |
4891 | */ | |
4892 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4893 | /* Skip peers with overridden configuration. */ | |
4894 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
4895 | PEER_FLAG_WEIGHT)) | |
4896 | continue; | |
4897 | ||
4898 | /* Set flag and configuration on peer-group member. */ | |
4899 | SET_FLAG(member->af_flags[afi][safi], PEER_FLAG_WEIGHT); | |
4900 | if (member->weight[afi][safi] != weight) { | |
4901 | member->weight[afi][safi] = weight; | |
4902 | peer_on_policy_change(member, afi, safi, 0); | |
d62a17ae | 4903 | } |
4904 | } | |
598ce6bd | 4905 | |
d62a17ae | 4906 | return 0; |
4907 | } | |
4908 | ||
4909 | int peer_weight_unset(struct peer *peer, afi_t afi, safi_t safi) | |
4910 | { | |
598ce6bd | 4911 | struct peer *member; |
d62a17ae | 4912 | struct listnode *node, *nnode; |
4913 | ||
598ce6bd PM |
4914 | if (!CHECK_FLAG(peer->af_flags[afi][safi], PEER_FLAG_WEIGHT)) |
4915 | return 0; | |
4916 | ||
4917 | /* Inherit configuration from peer-group if peer is member. */ | |
d62a17ae | 4918 | if (peer_group_active(peer)) { |
598ce6bd | 4919 | peer_af_flag_inherit(peer, afi, safi, PEER_FLAG_WEIGHT); |
e7103a96 | 4920 | PEER_ATTR_INHERIT(peer, peer->group, weight[afi][safi]); |
d62a17ae | 4921 | |
598ce6bd PM |
4922 | peer_on_policy_change(peer, afi, safi, 0); |
4923 | return 0; | |
d62a17ae | 4924 | } |
4925 | ||
598ce6bd PM |
4926 | /* Remove flag and configuration from peer. */ |
4927 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_WEIGHT); | |
4928 | peer->weight[afi][safi] = 0; | |
4929 | peer_on_policy_change(peer, afi, safi, 0); | |
d62a17ae | 4930 | |
598ce6bd PM |
4931 | /* Skip peer-group mechanics for regular peers. */ |
4932 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
4933 | return 0; | |
d62a17ae | 4934 | |
598ce6bd PM |
4935 | /* |
4936 | * Remove flag and configuration from all peer-group members, unless | |
4937 | * they are explicitely overriding peer-group configuration. | |
4938 | */ | |
4939 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4940 | /* Skip peers with overridden configuration. */ | |
4941 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
4942 | PEER_FLAG_WEIGHT)) | |
4943 | continue; | |
4944 | ||
4945 | /* Skip peers where flag is already disabled. */ | |
4946 | if (!CHECK_FLAG(member->af_flags[afi][safi], PEER_FLAG_WEIGHT)) | |
4947 | continue; | |
4948 | ||
4949 | /* Remove flag and configuration on peer-group member. */ | |
4950 | UNSET_FLAG(member->af_flags[afi][safi], PEER_FLAG_WEIGHT); | |
4951 | member->weight[afi][safi] = 0; | |
4952 | peer_on_policy_change(member, afi, safi, 0); | |
d62a17ae | 4953 | } |
598ce6bd | 4954 | |
d62a17ae | 4955 | return 0; |
4956 | } | |
4957 | ||
d7c0a89a | 4958 | int peer_timers_set(struct peer *peer, uint32_t keepalive, uint32_t holdtime) |
d62a17ae | 4959 | { |
b90a8e13 | 4960 | struct peer *member; |
d62a17ae | 4961 | struct listnode *node, *nnode; |
4962 | ||
d62a17ae | 4963 | if (keepalive > 65535) |
4964 | return BGP_ERR_INVALID_VALUE; | |
4965 | ||
d62a17ae | 4966 | if (holdtime > 65535) |
4967 | return BGP_ERR_INVALID_VALUE; | |
4968 | ||
d62a17ae | 4969 | if (holdtime < 3 && holdtime != 0) |
4970 | return BGP_ERR_INVALID_VALUE; | |
4971 | ||
b90a8e13 PM |
4972 | /* Set flag and configuration on peer. */ |
4973 | peer_flag_set(peer, PEER_FLAG_TIMER); | |
d62a17ae | 4974 | peer->holdtime = holdtime; |
4975 | peer->keepalive = (keepalive < holdtime / 3 ? keepalive : holdtime / 3); | |
4976 | ||
b90a8e13 PM |
4977 | /* Skip peer-group mechanics for regular peers. */ |
4978 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
4979 | return 0; | |
d25e4efc | 4980 | |
b90a8e13 PM |
4981 | /* |
4982 | * Set flag and configuration on all peer-group members, unless they are | |
4983 | * explicitely overriding peer-group configuration. | |
4984 | */ | |
4985 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4986 | /* Skip peers with overridden configuration. */ | |
4987 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_TIMER)) | |
4988 | continue; | |
d25e4efc | 4989 | |
b90a8e13 PM |
4990 | /* Set flag and configuration on peer-group member. */ |
4991 | SET_FLAG(member->flags, PEER_FLAG_TIMER); | |
4992 | PEER_ATTR_INHERIT(peer, peer->group, holdtime); | |
4993 | PEER_ATTR_INHERIT(peer, peer->group, keepalive); | |
d62a17ae | 4994 | } |
d25e4efc | 4995 | |
d62a17ae | 4996 | return 0; |
4997 | } | |
4998 | ||
4999 | int peer_timers_unset(struct peer *peer) | |
5000 | { | |
b90a8e13 | 5001 | struct peer *member; |
d62a17ae | 5002 | struct listnode *node, *nnode; |
5003 | ||
b90a8e13 PM |
5004 | /* Inherit configuration from peer-group if peer is member. */ |
5005 | if (peer_group_active(peer)) { | |
5006 | peer_flag_inherit(peer, PEER_FLAG_TIMER); | |
5007 | PEER_ATTR_INHERIT(peer, peer->group, holdtime); | |
5008 | PEER_ATTR_INHERIT(peer, peer->group, keepalive); | |
5009 | } else { | |
5010 | /* Otherwise remove flag and configuration from peer. */ | |
5011 | peer_flag_unset(peer, PEER_FLAG_TIMER); | |
d25e4efc | 5012 | peer->holdtime = 0; |
b90a8e13 PM |
5013 | peer->keepalive = 0; |
5014 | } | |
d25e4efc | 5015 | |
b90a8e13 PM |
5016 | /* Skip peer-group mechanics for regular peers. */ |
5017 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
5018 | return 0; | |
5019 | ||
5020 | /* | |
5021 | * Remove flag and configuration from all peer-group members, unless | |
5022 | * they are explicitely overriding peer-group configuration. | |
5023 | */ | |
5024 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5025 | /* Skip peers with overridden configuration. */ | |
5026 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_TIMER)) | |
5027 | continue; | |
d25e4efc | 5028 | |
b90a8e13 PM |
5029 | /* Remove flag and configuration on peer-group member. */ |
5030 | UNSET_FLAG(member->flags, PEER_FLAG_TIMER); | |
5031 | member->holdtime = 0; | |
5032 | member->keepalive = 0; | |
d62a17ae | 5033 | } |
5034 | ||
5035 | return 0; | |
5036 | } | |
5037 | ||
d7c0a89a | 5038 | int peer_timers_connect_set(struct peer *peer, uint32_t connect) |
d62a17ae | 5039 | { |
b90a8e13 | 5040 | struct peer *member; |
d62a17ae | 5041 | struct listnode *node, *nnode; |
5042 | ||
5043 | if (connect > 65535) | |
5044 | return BGP_ERR_INVALID_VALUE; | |
5045 | ||
b90a8e13 PM |
5046 | /* Set flag and configuration on peer. */ |
5047 | peer_flag_set(peer, PEER_FLAG_TIMER_CONNECT); | |
d62a17ae | 5048 | peer->connect = connect; |
d62a17ae | 5049 | peer->v_connect = connect; |
5050 | ||
b90a8e13 | 5051 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 5052 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) |
5053 | return 0; | |
5054 | ||
b90a8e13 PM |
5055 | /* |
5056 | * Set flag and configuration on all peer-group members, unless they are | |
5057 | * explicitely overriding peer-group configuration. | |
5058 | */ | |
5059 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5060 | /* Skip peers with overridden configuration. */ | |
5061 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_TIMER_CONNECT)) | |
5062 | continue; | |
5063 | ||
5064 | /* Set flag and configuration on peer-group member. */ | |
5065 | SET_FLAG(member->flags, PEER_FLAG_TIMER_CONNECT); | |
5066 | member->connect = connect; | |
5067 | member->v_connect = connect; | |
d62a17ae | 5068 | } |
b90a8e13 | 5069 | |
d62a17ae | 5070 | return 0; |
5071 | } | |
5072 | ||
5073 | int peer_timers_connect_unset(struct peer *peer) | |
5074 | { | |
b90a8e13 | 5075 | struct peer *member; |
d62a17ae | 5076 | struct listnode *node, *nnode; |
5077 | ||
b90a8e13 PM |
5078 | /* Inherit configuration from peer-group if peer is member. */ |
5079 | if (peer_group_active(peer)) { | |
5080 | peer_flag_inherit(peer, PEER_FLAG_TIMER_CONNECT); | |
5081 | PEER_ATTR_INHERIT(peer, peer->group, connect); | |
5082 | } else { | |
5083 | /* Otherwise remove flag and configuration from peer. */ | |
5084 | peer_flag_unset(peer, PEER_FLAG_TIMER_CONNECT); | |
5085 | peer->connect = 0; | |
5086 | } | |
d62a17ae | 5087 | |
b90a8e13 PM |
5088 | /* Set timer with fallback to default value. */ |
5089 | if (peer->connect) | |
5090 | peer->v_connect = peer->connect; | |
5091 | else | |
5d5393b9 | 5092 | peer->v_connect = peer->bgp->default_connect_retry; |
d62a17ae | 5093 | |
b90a8e13 | 5094 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 5095 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) |
5096 | return 0; | |
5097 | ||
b90a8e13 PM |
5098 | /* |
5099 | * Remove flag and configuration from all peer-group members, unless | |
5100 | * they are explicitely overriding peer-group configuration. | |
5101 | */ | |
5102 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5103 | /* Skip peers with overridden configuration. */ | |
5104 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_TIMER_CONNECT)) | |
5105 | continue; | |
5106 | ||
5107 | /* Remove flag and configuration on peer-group member. */ | |
5108 | UNSET_FLAG(member->flags, PEER_FLAG_TIMER_CONNECT); | |
5109 | member->connect = 0; | |
5d5393b9 | 5110 | member->v_connect = peer->bgp->default_connect_retry; |
d62a17ae | 5111 | } |
b90a8e13 | 5112 | |
d62a17ae | 5113 | return 0; |
5114 | } | |
5115 | ||
d7c0a89a | 5116 | int peer_advertise_interval_set(struct peer *peer, uint32_t routeadv) |
d62a17ae | 5117 | { |
b90a8e13 | 5118 | struct peer *member; |
d62a17ae | 5119 | struct listnode *node, *nnode; |
5120 | ||
5121 | if (routeadv > 600) | |
5122 | return BGP_ERR_INVALID_VALUE; | |
5123 | ||
b90a8e13 PM |
5124 | /* Set flag and configuration on peer. */ |
5125 | peer_flag_set(peer, PEER_FLAG_ROUTEADV); | |
d62a17ae | 5126 | peer->routeadv = routeadv; |
5127 | peer->v_routeadv = routeadv; | |
5128 | ||
b90a8e13 | 5129 | /* Check if handling a regular peer. */ |
d62a17ae | 5130 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
b90a8e13 | 5131 | /* Update peer route announcements. */ |
d62a17ae | 5132 | update_group_adjust_peer_afs(peer); |
5133 | if (peer->status == Established) | |
5134 | bgp_announce_route_all(peer); | |
b90a8e13 PM |
5135 | |
5136 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5137 | return 0; |
5138 | } | |
5139 | ||
b90a8e13 PM |
5140 | /* |
5141 | * Set flag and configuration on all peer-group members, unless they are | |
5142 | * explicitely overriding peer-group configuration. | |
5143 | */ | |
5144 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5145 | /* Skip peers with overridden configuration. */ | |
5146 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_ROUTEADV)) | |
5147 | continue; | |
5148 | ||
5149 | /* Set flag and configuration on peer-group member. */ | |
5150 | SET_FLAG(member->flags, PEER_FLAG_ROUTEADV); | |
5151 | member->routeadv = routeadv; | |
5152 | member->v_routeadv = routeadv; | |
5153 | ||
5154 | /* Update peer route announcements. */ | |
5155 | update_group_adjust_peer_afs(member); | |
5156 | if (member->status == Established) | |
5157 | bgp_announce_route_all(member); | |
d62a17ae | 5158 | } |
5159 | ||
5160 | return 0; | |
5161 | } | |
5162 | ||
5163 | int peer_advertise_interval_unset(struct peer *peer) | |
5164 | { | |
b90a8e13 | 5165 | struct peer *member; |
d62a17ae | 5166 | struct listnode *node, *nnode; |
5167 | ||
b90a8e13 PM |
5168 | /* Inherit configuration from peer-group if peer is member. */ |
5169 | if (peer_group_active(peer)) { | |
5170 | peer_flag_inherit(peer, PEER_FLAG_ROUTEADV); | |
5171 | PEER_ATTR_INHERIT(peer, peer->group, routeadv); | |
5172 | } else { | |
5173 | /* Otherwise remove flag and configuration from peer. */ | |
5174 | peer_flag_unset(peer, PEER_FLAG_ROUTEADV); | |
5175 | peer->routeadv = 0; | |
5176 | } | |
d62a17ae | 5177 | |
b90a8e13 PM |
5178 | /* Set timer with fallback to default value. */ |
5179 | if (peer->routeadv) | |
5180 | peer->v_routeadv = peer->routeadv; | |
d62a17ae | 5181 | else |
b90a8e13 PM |
5182 | peer->v_routeadv = (peer->sort == BGP_PEER_IBGP) |
5183 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
5184 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 5185 | |
b90a8e13 | 5186 | /* Check if handling a regular peer. */ |
d62a17ae | 5187 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
b90a8e13 | 5188 | /* Update peer route announcements. */ |
d62a17ae | 5189 | update_group_adjust_peer_afs(peer); |
5190 | if (peer->status == Established) | |
5191 | bgp_announce_route_all(peer); | |
b90a8e13 PM |
5192 | |
5193 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5194 | return 0; |
5195 | } | |
5196 | ||
b90a8e13 PM |
5197 | /* |
5198 | * Remove flag and configuration from all peer-group members, unless | |
5199 | * they are explicitely overriding peer-group configuration. | |
5200 | */ | |
5201 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5202 | /* Skip peers with overridden configuration. */ | |
5203 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_ROUTEADV)) | |
5204 | continue; | |
d62a17ae | 5205 | |
b90a8e13 PM |
5206 | /* Remove flag and configuration on peer-group member. */ |
5207 | UNSET_FLAG(member->flags, PEER_FLAG_ROUTEADV); | |
5208 | member->routeadv = 0; | |
5209 | member->v_routeadv = (member->sort == BGP_PEER_IBGP) | |
5210 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
5211 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 5212 | |
b90a8e13 PM |
5213 | /* Update peer route announcements. */ |
5214 | update_group_adjust_peer_afs(member); | |
5215 | if (member->status == Established) | |
5216 | bgp_announce_route_all(member); | |
d62a17ae | 5217 | } |
5218 | ||
5219 | return 0; | |
5220 | } | |
5221 | ||
5222 | /* neighbor interface */ | |
5223 | void peer_interface_set(struct peer *peer, const char *str) | |
5224 | { | |
0a22ddfb | 5225 | XFREE(MTYPE_BGP_PEER_IFNAME, peer->ifname); |
d62a17ae | 5226 | peer->ifname = XSTRDUP(MTYPE_BGP_PEER_IFNAME, str); |
5227 | } | |
5228 | ||
5229 | void peer_interface_unset(struct peer *peer) | |
5230 | { | |
0a22ddfb | 5231 | XFREE(MTYPE_BGP_PEER_IFNAME, peer->ifname); |
d62a17ae | 5232 | peer->ifname = NULL; |
5233 | } | |
5234 | ||
5235 | /* Allow-as in. */ | |
5236 | int peer_allowas_in_set(struct peer *peer, afi_t afi, safi_t safi, | |
5237 | int allow_num, int origin) | |
5238 | { | |
598ce6bd | 5239 | struct peer *member; |
d62a17ae | 5240 | struct listnode *node, *nnode; |
5241 | ||
598ce6bd PM |
5242 | if (!origin && (allow_num < 1 || allow_num > 10)) |
5243 | return BGP_ERR_INVALID_VALUE; | |
5244 | ||
5245 | /* Set flag and configuration on peer. */ | |
5246 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_ALLOWAS_IN); | |
d62a17ae | 5247 | if (origin) { |
598ce6bd | 5248 | if (peer->allowas_in[afi][safi] != 0 |
d62a17ae | 5249 | || !CHECK_FLAG(peer->af_flags[afi][safi], |
5250 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { | |
d62a17ae | 5251 | peer_af_flag_set(peer, afi, safi, |
5252 | PEER_FLAG_ALLOWAS_IN_ORIGIN); | |
598ce6bd | 5253 | peer->allowas_in[afi][safi] = 0; |
d62a17ae | 5254 | peer_on_policy_change(peer, afi, safi, 0); |
5255 | } | |
d62a17ae | 5256 | } else { |
d62a17ae | 5257 | if (peer->allowas_in[afi][safi] != allow_num |
5258 | || CHECK_FLAG(peer->af_flags[afi][safi], | |
5259 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { | |
598ce6bd | 5260 | |
d62a17ae | 5261 | peer_af_flag_unset(peer, afi, safi, |
5262 | PEER_FLAG_ALLOWAS_IN_ORIGIN); | |
598ce6bd | 5263 | peer->allowas_in[afi][safi] = allow_num; |
d62a17ae | 5264 | peer_on_policy_change(peer, afi, safi, 0); |
5265 | } | |
598ce6bd | 5266 | } |
d62a17ae | 5267 | |
598ce6bd PM |
5268 | /* Skip peer-group mechanics for regular peers. */ |
5269 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
5270 | return 0; | |
d62a17ae | 5271 | |
598ce6bd PM |
5272 | /* |
5273 | * Set flag and configuration on all peer-group members, unless | |
5274 | * they are explicitely overriding peer-group configuration. | |
5275 | */ | |
5276 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5277 | /* Skip peers with overridden configuration. */ | |
5278 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
246bb5f0 | 5279 | PEER_FLAG_ALLOWAS_IN)) |
598ce6bd PM |
5280 | continue; |
5281 | ||
5282 | /* Set flag and configuration on peer-group member. */ | |
5283 | SET_FLAG(member->af_flags[afi][safi], PEER_FLAG_ALLOWAS_IN); | |
5284 | if (origin) { | |
5285 | if (member->allowas_in[afi][safi] != 0 | |
5286 | || !CHECK_FLAG(member->af_flags[afi][safi], | |
cf9ac8bf | 5287 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { |
598ce6bd | 5288 | SET_FLAG(member->af_flags[afi][safi], |
cf9ac8bf | 5289 | PEER_FLAG_ALLOWAS_IN_ORIGIN); |
598ce6bd PM |
5290 | member->allowas_in[afi][safi] = 0; |
5291 | peer_on_policy_change(peer, afi, safi, 0); | |
5292 | } | |
5293 | } else { | |
5294 | if (member->allowas_in[afi][safi] != allow_num | |
5295 | || CHECK_FLAG(member->af_flags[afi][safi], | |
d62a17ae | 5296 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { |
598ce6bd PM |
5297 | UNSET_FLAG(member->af_flags[afi][safi], |
5298 | PEER_FLAG_ALLOWAS_IN_ORIGIN); | |
5299 | member->allowas_in[afi][safi] = allow_num; | |
d62a17ae | 5300 | peer_on_policy_change(peer, afi, safi, 0); |
5301 | } | |
5302 | } | |
5303 | } | |
5304 | ||
5305 | return 0; | |
5306 | } | |
5307 | ||
5308 | int peer_allowas_in_unset(struct peer *peer, afi_t afi, safi_t safi) | |
5309 | { | |
598ce6bd | 5310 | struct peer *member; |
d62a17ae | 5311 | struct listnode *node, *nnode; |
5312 | ||
598ce6bd PM |
5313 | /* Skip peer if flag is already disabled. */ |
5314 | if (!CHECK_FLAG(peer->af_flags[afi][safi], PEER_FLAG_ALLOWAS_IN)) | |
5315 | return 0; | |
d62a17ae | 5316 | |
598ce6bd PM |
5317 | /* Inherit configuration from peer-group if peer is member. */ |
5318 | if (peer_group_active(peer)) { | |
5319 | peer_af_flag_inherit(peer, afi, safi, PEER_FLAG_ALLOWAS_IN); | |
5320 | peer_af_flag_inherit(peer, afi, safi, | |
cf9ac8bf | 5321 | PEER_FLAG_ALLOWAS_IN_ORIGIN); |
e7103a96 | 5322 | PEER_ATTR_INHERIT(peer, peer->group, allowas_in[afi][safi]); |
d62a17ae | 5323 | peer_on_policy_change(peer, afi, safi, 0); |
598ce6bd PM |
5324 | |
5325 | return 0; | |
5326 | } | |
5327 | ||
5328 | /* Remove flag and configuration from peer. */ | |
5329 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_ALLOWAS_IN); | |
5330 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_ALLOWAS_IN_ORIGIN); | |
5331 | peer->allowas_in[afi][safi] = 0; | |
5332 | peer_on_policy_change(peer, afi, safi, 0); | |
5333 | ||
5334 | /* Skip peer-group mechanics if handling a regular peer. */ | |
5335 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
5336 | return 0; | |
5337 | ||
5338 | /* | |
5339 | * Remove flags and configuration from all peer-group members, unless | |
5340 | * they are explicitely overriding peer-group configuration. | |
5341 | */ | |
5342 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5343 | /* Skip peers with overridden configuration. */ | |
5344 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
cf9ac8bf | 5345 | PEER_FLAG_ALLOWAS_IN)) |
598ce6bd PM |
5346 | continue; |
5347 | ||
5348 | /* Skip peers where flag is already disabled. */ | |
5349 | if (!CHECK_FLAG(member->af_flags[afi][safi], | |
cf9ac8bf | 5350 | PEER_FLAG_ALLOWAS_IN)) |
598ce6bd PM |
5351 | continue; |
5352 | ||
5353 | /* Remove flags and configuration on peer-group member. */ | |
cf9ac8bf | 5354 | UNSET_FLAG(member->af_flags[afi][safi], PEER_FLAG_ALLOWAS_IN); |
598ce6bd | 5355 | UNSET_FLAG(member->af_flags[afi][safi], |
cf9ac8bf | 5356 | PEER_FLAG_ALLOWAS_IN_ORIGIN); |
598ce6bd PM |
5357 | member->allowas_in[afi][safi] = 0; |
5358 | peer_on_policy_change(member, afi, safi, 0); | |
d62a17ae | 5359 | } |
5360 | ||
5361 | return 0; | |
5362 | } | |
5363 | ||
5364 | int peer_local_as_set(struct peer *peer, as_t as, int no_prepend, | |
5365 | int replace_as) | |
5366 | { | |
a14810f4 | 5367 | bool old_no_prepend, old_replace_as; |
d62a17ae | 5368 | struct bgp *bgp = peer->bgp; |
a14810f4 | 5369 | struct peer *member; |
d62a17ae | 5370 | struct listnode *node, *nnode; |
5371 | ||
5372 | if (peer_sort(peer) != BGP_PEER_EBGP | |
5373 | && peer_sort(peer) != BGP_PEER_INTERNAL) | |
5374 | return BGP_ERR_LOCAL_AS_ALLOWED_ONLY_FOR_EBGP; | |
5375 | ||
5376 | if (bgp->as == as) | |
5377 | return BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS; | |
5378 | ||
5379 | if (peer->as == as) | |
5380 | return BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS_REMOTE_AS; | |
5381 | ||
a14810f4 PM |
5382 | /* Save previous flag states. */ |
5383 | old_no_prepend = | |
5384 | !!CHECK_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5385 | old_replace_as = | |
5386 | !!CHECK_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
d62a17ae | 5387 | |
a14810f4 PM |
5388 | /* Set flag and configuration on peer. */ |
5389 | peer_flag_set(peer, PEER_FLAG_LOCAL_AS); | |
5390 | peer_flag_modify(peer, PEER_FLAG_LOCAL_AS_NO_PREPEND, no_prepend); | |
5391 | peer_flag_modify(peer, PEER_FLAG_LOCAL_AS_REPLACE_AS, replace_as); | |
d62a17ae | 5392 | |
a14810f4 PM |
5393 | if (peer->change_local_as == as && old_no_prepend == no_prepend |
5394 | && old_replace_as == replace_as) | |
5395 | return 0; | |
5396 | peer->change_local_as = as; | |
d62a17ae | 5397 | |
a14810f4 | 5398 | /* Check if handling a regular peer. */ |
d62a17ae | 5399 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 5400 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 5401 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
5402 | peer->last_reset = PEER_DOWN_LOCAL_AS_CHANGE; | |
5403 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5404 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5405 | } else | |
5406 | bgp_session_reset(peer); | |
a14810f4 PM |
5407 | |
5408 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5409 | return 0; |
5410 | } | |
5411 | ||
a14810f4 PM |
5412 | /* |
5413 | * Set flag and configuration on all peer-group members, unless they are | |
5414 | * explicitely overriding peer-group configuration. | |
5415 | */ | |
5416 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5417 | /* Skip peers with overridden configuration. */ | |
5418 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_LOCAL_AS)) | |
5419 | continue; | |
d62a17ae | 5420 | |
a14810f4 PM |
5421 | /* Skip peers with the same configuration. */ |
5422 | old_no_prepend = CHECK_FLAG(member->flags, | |
5423 | PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5424 | old_replace_as = CHECK_FLAG(member->flags, | |
5425 | PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
5426 | if (member->change_local_as == as | |
5427 | && CHECK_FLAG(member->flags, PEER_FLAG_LOCAL_AS) | |
5428 | && old_no_prepend == no_prepend | |
5429 | && old_replace_as == replace_as) | |
5430 | continue; | |
d62a17ae | 5431 | |
a14810f4 PM |
5432 | /* Set flag and configuration on peer-group member. */ |
5433 | SET_FLAG(member->flags, PEER_FLAG_LOCAL_AS); | |
5434 | COND_FLAG(member->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND, | |
5435 | no_prepend); | |
5436 | COND_FLAG(member->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS, | |
5437 | replace_as); | |
5438 | member->change_local_as = as; | |
5439 | ||
5440 | /* Send notification or stop peer depending on state. */ | |
5441 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) { | |
5442 | member->last_reset = PEER_DOWN_LOCAL_AS_CHANGE; | |
5443 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 5444 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
5445 | } else | |
a14810f4 | 5446 | BGP_EVENT_ADD(member, BGP_Stop); |
d62a17ae | 5447 | } |
5448 | ||
5449 | return 0; | |
5450 | } | |
5451 | ||
5452 | int peer_local_as_unset(struct peer *peer) | |
5453 | { | |
a14810f4 | 5454 | struct peer *member; |
d62a17ae | 5455 | struct listnode *node, *nnode; |
5456 | ||
a14810f4 | 5457 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_LOCAL_AS)) |
d62a17ae | 5458 | return 0; |
5459 | ||
a14810f4 PM |
5460 | /* Inherit configuration from peer-group if peer is member. */ |
5461 | if (peer_group_active(peer)) { | |
5462 | peer_flag_inherit(peer, PEER_FLAG_LOCAL_AS); | |
5463 | peer_flag_inherit(peer, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5464 | peer_flag_inherit(peer, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
5465 | PEER_ATTR_INHERIT(peer, peer->group, change_local_as); | |
5466 | } else { | |
5467 | /* Otherwise remove flag and configuration from peer. */ | |
5468 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS); | |
5469 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5470 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
5471 | peer->change_local_as = 0; | |
5472 | } | |
d62a17ae | 5473 | |
a14810f4 | 5474 | /* Check if handling a regular peer. */ |
d62a17ae | 5475 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 5476 | /* Send notification or stop peer depending on state. */ |
d62a17ae | 5477 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
5478 | peer->last_reset = PEER_DOWN_LOCAL_AS_CHANGE; | |
5479 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5480 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5481 | } else | |
5482 | BGP_EVENT_ADD(peer, BGP_Stop); | |
5483 | ||
a14810f4 | 5484 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 5485 | return 0; |
5486 | } | |
5487 | ||
a14810f4 PM |
5488 | /* |
5489 | * Remove flag and configuration from all peer-group members, unless | |
5490 | * they are explicitely overriding peer-group configuration. | |
5491 | */ | |
5492 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5493 | /* Skip peers with overridden configuration. */ | |
5494 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_LOCAL_AS)) | |
5495 | continue; | |
d62a17ae | 5496 | |
a14810f4 PM |
5497 | /* Remove flag and configuration on peer-group member. */ |
5498 | UNSET_FLAG(member->flags, PEER_FLAG_LOCAL_AS); | |
5499 | UNSET_FLAG(member->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5500 | UNSET_FLAG(member->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
5501 | member->change_local_as = 0; | |
5502 | ||
5503 | /* Send notification or stop peer depending on state. */ | |
5504 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) { | |
5505 | member->last_reset = PEER_DOWN_LOCAL_AS_CHANGE; | |
5506 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 5507 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
5508 | } else | |
a14810f4 | 5509 | bgp_session_reset(member); |
d62a17ae | 5510 | } |
a14810f4 | 5511 | |
d62a17ae | 5512 | return 0; |
5513 | } | |
5514 | ||
5515 | /* Set password for authenticating with the peer. */ | |
5516 | int peer_password_set(struct peer *peer, const char *password) | |
5517 | { | |
a14810f4 PM |
5518 | struct peer *member; |
5519 | struct listnode *node, *nnode; | |
d62a17ae | 5520 | int len = password ? strlen(password) : 0; |
5521 | int ret = BGP_SUCCESS; | |
5522 | ||
5523 | if ((len < PEER_PASSWORD_MINLEN) || (len > PEER_PASSWORD_MAXLEN)) | |
5524 | return BGP_ERR_INVALID_VALUE; | |
5525 | ||
a14810f4 PM |
5526 | /* Set flag and configuration on peer. */ |
5527 | peer_flag_set(peer, PEER_FLAG_PASSWORD); | |
5528 | if (peer->password && strcmp(peer->password, password) == 0) | |
d62a17ae | 5529 | return 0; |
a14810f4 | 5530 | XFREE(MTYPE_PEER_PASSWORD, peer->password); |
d62a17ae | 5531 | peer->password = XSTRDUP(MTYPE_PEER_PASSWORD, password); |
5532 | ||
a14810f4 | 5533 | /* Check if handling a regular peer. */ |
d62a17ae | 5534 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 5535 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 5536 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
5537 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5538 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5539 | else | |
5540 | bgp_session_reset(peer); | |
5541 | ||
a14810f4 PM |
5542 | /* |
5543 | * Attempt to install password on socket and skip peer-group | |
5544 | * mechanics. | |
5545 | */ | |
d62a17ae | 5546 | if (BGP_PEER_SU_UNSPEC(peer)) |
5547 | return BGP_SUCCESS; | |
d62a17ae | 5548 | return (bgp_md5_set(peer) >= 0) ? BGP_SUCCESS |
5549 | : BGP_ERR_TCPSIG_FAILED; | |
5550 | } | |
5551 | ||
a14810f4 PM |
5552 | /* |
5553 | * Set flag and configuration on all peer-group members, unless they are | |
5554 | * explicitely overriding peer-group configuration. | |
5555 | */ | |
5556 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5557 | /* Skip peers with overridden configuration. */ | |
5558 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_PASSWORD)) | |
d62a17ae | 5559 | continue; |
5560 | ||
a14810f4 PM |
5561 | /* Skip peers with the same password. */ |
5562 | if (member->password && strcmp(member->password, password) == 0) | |
5563 | continue; | |
d62a17ae | 5564 | |
a14810f4 PM |
5565 | /* Set flag and configuration on peer-group member. */ |
5566 | SET_FLAG(member->flags, PEER_FLAG_PASSWORD); | |
5567 | if (member->password) | |
5568 | XFREE(MTYPE_PEER_PASSWORD, member->password); | |
5569 | member->password = XSTRDUP(MTYPE_PEER_PASSWORD, password); | |
5570 | ||
5571 | /* Send notification or reset peer depending on state. */ | |
5572 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) | |
5573 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 5574 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
5575 | else | |
a14810f4 | 5576 | bgp_session_reset(member); |
d62a17ae | 5577 | |
a14810f4 PM |
5578 | /* Attempt to install password on socket. */ |
5579 | if (!BGP_PEER_SU_UNSPEC(member) && bgp_md5_set(member) < 0) | |
5580 | ret = BGP_ERR_TCPSIG_FAILED; | |
d62a17ae | 5581 | } |
5582 | ||
9e7d9a61 QY |
5583 | /* Set flag and configuration on all peer-group listen ranges */ |
5584 | struct listnode *ln; | |
5585 | struct prefix *lr; | |
5586 | ||
5587 | for (ALL_LIST_ELEMENTS_RO(peer->group->listen_range[AFI_IP], ln, lr)) | |
5588 | bgp_md5_set_prefix(lr, password); | |
5589 | for (ALL_LIST_ELEMENTS_RO(peer->group->listen_range[AFI_IP6], ln, lr)) | |
5590 | bgp_md5_set_prefix(lr, password); | |
5591 | ||
d62a17ae | 5592 | return ret; |
5593 | } | |
5594 | ||
5595 | int peer_password_unset(struct peer *peer) | |
5596 | { | |
a14810f4 PM |
5597 | struct peer *member; |
5598 | struct listnode *node, *nnode; | |
d62a17ae | 5599 | |
a14810f4 | 5600 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_PASSWORD)) |
d62a17ae | 5601 | return 0; |
5602 | ||
a14810f4 PM |
5603 | /* Inherit configuration from peer-group if peer is member. */ |
5604 | if (peer_group_active(peer)) { | |
5605 | peer_flag_inherit(peer, PEER_FLAG_PASSWORD); | |
5606 | PEER_STR_ATTR_INHERIT(peer, peer->group, password, | |
5607 | MTYPE_PEER_PASSWORD); | |
5608 | } else { | |
5609 | /* Otherwise remove flag and configuration from peer. */ | |
5610 | peer_flag_unset(peer, PEER_FLAG_PASSWORD); | |
5611 | XFREE(MTYPE_PEER_PASSWORD, peer->password); | |
5612 | } | |
5613 | ||
5614 | /* Check if handling a regular peer. */ | |
d62a17ae | 5615 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 5616 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 5617 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
5618 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5619 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5620 | else | |
5621 | bgp_session_reset(peer); | |
5622 | ||
a14810f4 | 5623 | /* Attempt to uninstall password on socket. */ |
d62a17ae | 5624 | if (!BGP_PEER_SU_UNSPEC(peer)) |
5625 | bgp_md5_unset(peer); | |
5626 | ||
a14810f4 | 5627 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 5628 | return 0; |
5629 | } | |
5630 | ||
a14810f4 PM |
5631 | /* |
5632 | * Remove flag and configuration from all peer-group members, unless | |
5633 | * they are explicitely overriding peer-group configuration. | |
5634 | */ | |
5635 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5636 | /* Skip peers with overridden configuration. */ | |
5637 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_PASSWORD)) | |
d62a17ae | 5638 | continue; |
5639 | ||
a14810f4 PM |
5640 | /* Remove flag and configuration on peer-group member. */ |
5641 | UNSET_FLAG(member->flags, PEER_FLAG_PASSWORD); | |
5642 | XFREE(MTYPE_PEER_PASSWORD, member->password); | |
5643 | ||
5644 | /* Send notification or reset peer depending on state. */ | |
5645 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) | |
5646 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 5647 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
5648 | else | |
a14810f4 | 5649 | bgp_session_reset(member); |
d62a17ae | 5650 | |
a14810f4 PM |
5651 | /* Attempt to uninstall password on socket. */ |
5652 | if (!BGP_PEER_SU_UNSPEC(member)) | |
5653 | bgp_md5_unset(member); | |
d62a17ae | 5654 | } |
5655 | ||
9e7d9a61 QY |
5656 | /* Set flag and configuration on all peer-group listen ranges */ |
5657 | struct listnode *ln; | |
5658 | struct prefix *lr; | |
5659 | ||
5660 | for (ALL_LIST_ELEMENTS_RO(peer->group->listen_range[AFI_IP], ln, lr)) | |
5661 | bgp_md5_unset_prefix(lr); | |
5662 | for (ALL_LIST_ELEMENTS_RO(peer->group->listen_range[AFI_IP6], ln, lr)) | |
5663 | bgp_md5_unset_prefix(lr); | |
5664 | ||
d62a17ae | 5665 | return 0; |
5666 | } | |
6b0655a2 | 5667 | |
3f9c7369 | 5668 | |
718e3744 | 5669 | /* Set distribute list to the peer. */ |
d62a17ae | 5670 | int peer_distribute_set(struct peer *peer, afi_t afi, safi_t safi, int direct, |
5671 | const char *name) | |
5672 | { | |
70ee29b4 | 5673 | struct peer *member; |
d62a17ae | 5674 | struct bgp_filter *filter; |
d62a17ae | 5675 | struct listnode *node, *nnode; |
5676 | ||
5677 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5678 | return BGP_ERR_INVALID_VALUE; | |
5679 | ||
70ee29b4 | 5680 | /* Set configuration on peer. */ |
d62a17ae | 5681 | filter = &peer->filter[afi][safi]; |
d62a17ae | 5682 | if (filter->plist[direct].name) |
5683 | return BGP_ERR_PEER_FILTER_CONFLICT; | |
d62a17ae | 5684 | if (filter->dlist[direct].name) |
5685 | XFREE(MTYPE_BGP_FILTER_NAME, filter->dlist[direct].name); | |
5686 | filter->dlist[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5687 | filter->dlist[direct].alist = access_list_lookup(afi, name); | |
5688 | ||
70ee29b4 | 5689 | /* Check if handling a regular peer. */ |
d62a17ae | 5690 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
5691 | /* Set override-flag and process peer route updates. */ |
5692 | SET_FLAG(peer->filter_override[afi][safi][direct], | |
5693 | PEER_FT_DISTRIBUTE_LIST); | |
d62a17ae | 5694 | peer_on_policy_change(peer, afi, safi, |
5695 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
5696 | |
5697 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5698 | return 0; |
5699 | } | |
5700 | ||
70ee29b4 PM |
5701 | /* |
5702 | * Set configuration on all peer-group members, un less they are | |
5703 | * explicitely overriding peer-group configuration. | |
5704 | */ | |
5705 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5706 | /* Skip peers with overridden configuration. */ | |
5707 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
5708 | PEER_FT_DISTRIBUTE_LIST)) | |
5709 | continue; | |
d62a17ae | 5710 | |
70ee29b4 PM |
5711 | /* Set configuration on peer-group member. */ |
5712 | filter = &member->filter[afi][safi]; | |
d62a17ae | 5713 | if (filter->dlist[direct].name) |
5714 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5715 | filter->dlist[direct].name); | |
5716 | filter->dlist[direct].name = | |
5717 | XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5718 | filter->dlist[direct].alist = access_list_lookup(afi, name); | |
70ee29b4 PM |
5719 | |
5720 | /* Process peer route updates. */ | |
5721 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 5722 | (direct == FILTER_OUT) ? 1 : 0); |
5723 | } | |
5724 | ||
5725 | return 0; | |
5726 | } | |
5727 | ||
5728 | int peer_distribute_unset(struct peer *peer, afi_t afi, safi_t safi, int direct) | |
5729 | { | |
70ee29b4 | 5730 | struct peer *member; |
d62a17ae | 5731 | struct bgp_filter *filter; |
d62a17ae | 5732 | struct listnode *node, *nnode; |
5733 | ||
5734 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5735 | return BGP_ERR_INVALID_VALUE; | |
5736 | ||
70ee29b4 PM |
5737 | /* Unset override-flag unconditionally. */ |
5738 | UNSET_FLAG(peer->filter_override[afi][safi][direct], | |
5739 | PEER_FT_DISTRIBUTE_LIST); | |
d62a17ae | 5740 | |
70ee29b4 | 5741 | /* Inherit configuration from peer-group if peer is member. */ |
d62a17ae | 5742 | if (peer_group_active(peer)) { |
e7103a96 PM |
5743 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
5744 | filter[afi][safi].dlist[direct].name, | |
5745 | MTYPE_BGP_FILTER_NAME); | |
5746 | PEER_ATTR_INHERIT(peer, peer->group, | |
5747 | filter[afi][safi].dlist[direct].alist); | |
70ee29b4 PM |
5748 | } else { |
5749 | /* Otherwise remove configuration from peer. */ | |
5750 | filter = &peer->filter[afi][safi]; | |
5751 | if (filter->dlist[direct].name) | |
5752 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5753 | filter->dlist[direct].name); | |
5754 | filter->dlist[direct].name = NULL; | |
5755 | filter->dlist[direct].alist = NULL; | |
d62a17ae | 5756 | } |
5757 | ||
70ee29b4 | 5758 | /* Check if handling a regular peer. */ |
d62a17ae | 5759 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 5760 | /* Process peer route updates. */ |
d62a17ae | 5761 | peer_on_policy_change(peer, afi, safi, |
5762 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
5763 | |
5764 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5765 | return 0; |
5766 | } | |
5767 | ||
70ee29b4 PM |
5768 | /* |
5769 | * Remove configuration on all peer-group members, unless they are | |
5770 | * explicitely overriding peer-group configuration. | |
5771 | */ | |
5772 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5773 | /* Skip peers with overridden configuration. */ | |
5774 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
5775 | PEER_FT_DISTRIBUTE_LIST)) | |
5776 | continue; | |
d62a17ae | 5777 | |
70ee29b4 PM |
5778 | /* Remove configuration on peer-group member. */ |
5779 | filter = &member->filter[afi][safi]; | |
d62a17ae | 5780 | if (filter->dlist[direct].name) |
5781 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5782 | filter->dlist[direct].name); | |
5783 | filter->dlist[direct].name = NULL; | |
5784 | filter->dlist[direct].alist = NULL; | |
70ee29b4 PM |
5785 | |
5786 | /* Process peer route updates. */ | |
5787 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 5788 | (direct == FILTER_OUT) ? 1 : 0); |
5789 | } | |
5790 | ||
5791 | return 0; | |
5792 | } | |
5793 | ||
5794 | /* Update distribute list. */ | |
5795 | static void peer_distribute_update(struct access_list *access) | |
5796 | { | |
5797 | afi_t afi; | |
5798 | safi_t safi; | |
5799 | int direct; | |
5800 | struct listnode *mnode, *mnnode; | |
5801 | struct listnode *node, *nnode; | |
5802 | struct bgp *bgp; | |
5803 | struct peer *peer; | |
5804 | struct peer_group *group; | |
5805 | struct bgp_filter *filter; | |
5806 | ||
5807 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
5808 | if (access->name) | |
5809 | update_group_policy_update(bgp, BGP_POLICY_FILTER_LIST, | |
5810 | access->name, 0, 0); | |
5811 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
05c7a1cc QY |
5812 | FOREACH_AFI_SAFI (afi, safi) { |
5813 | filter = &peer->filter[afi][safi]; | |
5814 | ||
5815 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
5816 | direct++) { | |
5817 | if (filter->dlist[direct].name) | |
5818 | filter->dlist[direct] | |
5819 | .alist = access_list_lookup( | |
5820 | afi, | |
d62a17ae | 5821 | filter->dlist[direct] |
05c7a1cc QY |
5822 | .name); |
5823 | else | |
5824 | filter->dlist[direct].alist = | |
5825 | NULL; | |
d62a17ae | 5826 | } |
05c7a1cc | 5827 | } |
d62a17ae | 5828 | } |
5829 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
05c7a1cc QY |
5830 | FOREACH_AFI_SAFI (afi, safi) { |
5831 | filter = &group->conf->filter[afi][safi]; | |
5832 | ||
5833 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
5834 | direct++) { | |
5835 | if (filter->dlist[direct].name) | |
5836 | filter->dlist[direct] | |
5837 | .alist = access_list_lookup( | |
5838 | afi, | |
d62a17ae | 5839 | filter->dlist[direct] |
05c7a1cc QY |
5840 | .name); |
5841 | else | |
5842 | filter->dlist[direct].alist = | |
5843 | NULL; | |
d62a17ae | 5844 | } |
05c7a1cc | 5845 | } |
d62a17ae | 5846 | } |
5847 | #if ENABLE_BGP_VNC | |
5848 | vnc_prefix_list_update(bgp); | |
5849 | #endif | |
5850 | } | |
5851 | } | |
5852 | ||
5853 | /* Set prefix list to the peer. */ | |
5854 | int peer_prefix_list_set(struct peer *peer, afi_t afi, safi_t safi, int direct, | |
5855 | const char *name) | |
5856 | { | |
70ee29b4 | 5857 | struct peer *member; |
d62a17ae | 5858 | struct bgp_filter *filter; |
d62a17ae | 5859 | struct listnode *node, *nnode; |
5860 | ||
5861 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5862 | return BGP_ERR_INVALID_VALUE; | |
5863 | ||
70ee29b4 | 5864 | /* Set configuration on peer. */ |
d62a17ae | 5865 | filter = &peer->filter[afi][safi]; |
d62a17ae | 5866 | if (filter->dlist[direct].name) |
5867 | return BGP_ERR_PEER_FILTER_CONFLICT; | |
d62a17ae | 5868 | if (filter->plist[direct].name) |
5869 | XFREE(MTYPE_BGP_FILTER_NAME, filter->plist[direct].name); | |
5870 | filter->plist[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5871 | filter->plist[direct].plist = prefix_list_lookup(afi, name); | |
5872 | ||
70ee29b4 | 5873 | /* Check if handling a regular peer. */ |
d62a17ae | 5874 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
5875 | /* Set override-flag and process peer route updates. */ |
5876 | SET_FLAG(peer->filter_override[afi][safi][direct], | |
5877 | PEER_FT_PREFIX_LIST); | |
d62a17ae | 5878 | peer_on_policy_change(peer, afi, safi, |
5879 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
5880 | |
5881 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5882 | return 0; |
5883 | } | |
5884 | ||
70ee29b4 PM |
5885 | /* |
5886 | * Set configuration on all peer-group members, unless they are | |
5887 | * explicitely overriding peer-group configuration. | |
5888 | */ | |
5889 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5890 | /* Skip peers with overridden configuration. */ | |
5891 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
5892 | PEER_FT_PREFIX_LIST)) | |
5893 | continue; | |
d62a17ae | 5894 | |
70ee29b4 PM |
5895 | /* Set configuration on peer-group member. */ |
5896 | filter = &member->filter[afi][safi]; | |
d62a17ae | 5897 | if (filter->plist[direct].name) |
5898 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5899 | filter->plist[direct].name); | |
5900 | filter->plist[direct].name = | |
5901 | XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5902 | filter->plist[direct].plist = prefix_list_lookup(afi, name); | |
70ee29b4 PM |
5903 | |
5904 | /* Process peer route updates. */ | |
5905 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 5906 | (direct == FILTER_OUT) ? 1 : 0); |
5907 | } | |
70ee29b4 | 5908 | |
d62a17ae | 5909 | return 0; |
5910 | } | |
5911 | ||
5912 | int peer_prefix_list_unset(struct peer *peer, afi_t afi, safi_t safi, | |
5913 | int direct) | |
5914 | { | |
70ee29b4 | 5915 | struct peer *member; |
d62a17ae | 5916 | struct bgp_filter *filter; |
d62a17ae | 5917 | struct listnode *node, *nnode; |
5918 | ||
5919 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5920 | return BGP_ERR_INVALID_VALUE; | |
5921 | ||
70ee29b4 PM |
5922 | /* Unset override-flag unconditionally. */ |
5923 | UNSET_FLAG(peer->filter_override[afi][safi][direct], | |
5924 | PEER_FT_PREFIX_LIST); | |
d62a17ae | 5925 | |
70ee29b4 | 5926 | /* Inherit configuration from peer-group if peer is member. */ |
d62a17ae | 5927 | if (peer_group_active(peer)) { |
e7103a96 PM |
5928 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
5929 | filter[afi][safi].plist[direct].name, | |
5930 | MTYPE_BGP_FILTER_NAME); | |
5931 | PEER_ATTR_INHERIT(peer, peer->group, | |
5932 | filter[afi][safi].plist[direct].plist); | |
70ee29b4 PM |
5933 | } else { |
5934 | /* Otherwise remove configuration from peer. */ | |
5935 | filter = &peer->filter[afi][safi]; | |
5936 | if (filter->plist[direct].name) | |
5937 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5938 | filter->plist[direct].name); | |
5939 | filter->plist[direct].name = NULL; | |
5940 | filter->plist[direct].plist = NULL; | |
d62a17ae | 5941 | } |
5942 | ||
70ee29b4 | 5943 | /* Check if handling a regular peer. */ |
d62a17ae | 5944 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 5945 | /* Process peer route updates. */ |
d62a17ae | 5946 | peer_on_policy_change(peer, afi, safi, |
5947 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
5948 | |
5949 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5950 | return 0; |
5951 | } | |
5952 | ||
70ee29b4 PM |
5953 | /* |
5954 | * Remove configuration on all peer-group members, unless they are | |
5955 | * explicitely overriding peer-group configuration. | |
5956 | */ | |
5957 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5958 | /* Skip peers with overridden configuration. */ | |
5959 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
5960 | PEER_FT_PREFIX_LIST)) | |
5961 | continue; | |
d62a17ae | 5962 | |
70ee29b4 PM |
5963 | /* Remove configuration on peer-group member. */ |
5964 | filter = &member->filter[afi][safi]; | |
d62a17ae | 5965 | if (filter->plist[direct].name) |
5966 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5967 | filter->plist[direct].name); | |
5968 | filter->plist[direct].name = NULL; | |
5969 | filter->plist[direct].plist = NULL; | |
70ee29b4 PM |
5970 | |
5971 | /* Process peer route updates. */ | |
5972 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 5973 | (direct == FILTER_OUT) ? 1 : 0); |
5974 | } | |
5975 | ||
5976 | return 0; | |
5977 | } | |
5978 | ||
5979 | /* Update prefix-list list. */ | |
5980 | static void peer_prefix_list_update(struct prefix_list *plist) | |
5981 | { | |
5982 | struct listnode *mnode, *mnnode; | |
5983 | struct listnode *node, *nnode; | |
5984 | struct bgp *bgp; | |
5985 | struct peer *peer; | |
5986 | struct peer_group *group; | |
5987 | struct bgp_filter *filter; | |
5988 | afi_t afi; | |
5989 | safi_t safi; | |
5990 | int direct; | |
5991 | ||
5992 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
5993 | ||
5994 | /* | |
5995 | * Update the prefix-list on update groups. | |
5996 | */ | |
5997 | update_group_policy_update( | |
5998 | bgp, BGP_POLICY_PREFIX_LIST, | |
5999 | plist ? prefix_list_name(plist) : NULL, 0, 0); | |
6000 | ||
6001 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
05c7a1cc QY |
6002 | FOREACH_AFI_SAFI (afi, safi) { |
6003 | filter = &peer->filter[afi][safi]; | |
6004 | ||
6005 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
6006 | direct++) { | |
6007 | if (filter->plist[direct].name) | |
6008 | filter->plist[direct] | |
6009 | .plist = prefix_list_lookup( | |
6010 | afi, | |
d62a17ae | 6011 | filter->plist[direct] |
05c7a1cc QY |
6012 | .name); |
6013 | else | |
6014 | filter->plist[direct].plist = | |
6015 | NULL; | |
d62a17ae | 6016 | } |
05c7a1cc | 6017 | } |
d62a17ae | 6018 | } |
6019 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
05c7a1cc QY |
6020 | FOREACH_AFI_SAFI (afi, safi) { |
6021 | filter = &group->conf->filter[afi][safi]; | |
6022 | ||
6023 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
6024 | direct++) { | |
6025 | if (filter->plist[direct].name) | |
6026 | filter->plist[direct] | |
6027 | .plist = prefix_list_lookup( | |
6028 | afi, | |
d62a17ae | 6029 | filter->plist[direct] |
05c7a1cc QY |
6030 | .name); |
6031 | else | |
6032 | filter->plist[direct].plist = | |
6033 | NULL; | |
d62a17ae | 6034 | } |
05c7a1cc | 6035 | } |
d62a17ae | 6036 | } |
6037 | } | |
6038 | } | |
6039 | ||
6040 | int peer_aslist_set(struct peer *peer, afi_t afi, safi_t safi, int direct, | |
6041 | const char *name) | |
6042 | { | |
70ee29b4 | 6043 | struct peer *member; |
d62a17ae | 6044 | struct bgp_filter *filter; |
d62a17ae | 6045 | struct listnode *node, *nnode; |
6046 | ||
6047 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
6048 | return BGP_ERR_INVALID_VALUE; | |
6049 | ||
70ee29b4 | 6050 | /* Set configuration on peer. */ |
d62a17ae | 6051 | filter = &peer->filter[afi][safi]; |
d62a17ae | 6052 | if (filter->aslist[direct].name) |
6053 | XFREE(MTYPE_BGP_FILTER_NAME, filter->aslist[direct].name); | |
6054 | filter->aslist[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
6055 | filter->aslist[direct].aslist = as_list_lookup(name); | |
6056 | ||
70ee29b4 | 6057 | /* Check if handling a regular peer. */ |
d62a17ae | 6058 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
6059 | /* Set override-flag and process peer route updates. */ |
6060 | SET_FLAG(peer->filter_override[afi][safi][direct], | |
6061 | PEER_FT_FILTER_LIST); | |
d62a17ae | 6062 | peer_on_policy_change(peer, afi, safi, |
6063 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
6064 | |
6065 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6066 | return 0; |
6067 | } | |
6068 | ||
70ee29b4 PM |
6069 | /* |
6070 | * Set configuration on all peer-group members, unless they are | |
6071 | * explicitely overriding peer-group configuration. | |
6072 | */ | |
6073 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6074 | /* Skip peers with overridden configuration. */ | |
6075 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
6076 | PEER_FT_FILTER_LIST)) | |
6077 | continue; | |
d62a17ae | 6078 | |
70ee29b4 PM |
6079 | /* Set configuration on peer-group member. */ |
6080 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6081 | if (filter->aslist[direct].name) |
6082 | XFREE(MTYPE_BGP_FILTER_NAME, | |
6083 | filter->aslist[direct].name); | |
6084 | filter->aslist[direct].name = | |
6085 | XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
6086 | filter->aslist[direct].aslist = as_list_lookup(name); | |
70ee29b4 PM |
6087 | |
6088 | /* Process peer route updates. */ | |
6089 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 6090 | (direct == FILTER_OUT) ? 1 : 0); |
6091 | } | |
70ee29b4 | 6092 | |
d62a17ae | 6093 | return 0; |
6094 | } | |
6095 | ||
6096 | int peer_aslist_unset(struct peer *peer, afi_t afi, safi_t safi, int direct) | |
6097 | { | |
70ee29b4 | 6098 | struct peer *member; |
d62a17ae | 6099 | struct bgp_filter *filter; |
d62a17ae | 6100 | struct listnode *node, *nnode; |
6101 | ||
6102 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
6103 | return BGP_ERR_INVALID_VALUE; | |
6104 | ||
70ee29b4 PM |
6105 | /* Unset override-flag unconditionally. */ |
6106 | UNSET_FLAG(peer->filter_override[afi][safi][direct], | |
6107 | PEER_FT_FILTER_LIST); | |
d62a17ae | 6108 | |
70ee29b4 | 6109 | /* Inherit configuration from peer-group if peer is member. */ |
d62a17ae | 6110 | if (peer_group_active(peer)) { |
e7103a96 PM |
6111 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
6112 | filter[afi][safi].aslist[direct].name, | |
6113 | MTYPE_BGP_FILTER_NAME); | |
6114 | PEER_ATTR_INHERIT(peer, peer->group, | |
70ee29b4 PM |
6115 | filter[afi][safi].aslist[direct].aslist); |
6116 | } else { | |
6117 | /* Otherwise remove configuration from peer. */ | |
6118 | filter = &peer->filter[afi][safi]; | |
6119 | if (filter->aslist[direct].name) | |
6120 | XFREE(MTYPE_BGP_FILTER_NAME, | |
6121 | filter->aslist[direct].name); | |
6122 | filter->aslist[direct].name = NULL; | |
6123 | filter->aslist[direct].aslist = NULL; | |
d62a17ae | 6124 | } |
6125 | ||
70ee29b4 | 6126 | /* Check if handling a regular peer. */ |
d62a17ae | 6127 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 6128 | /* Process peer route updates. */ |
d62a17ae | 6129 | peer_on_policy_change(peer, afi, safi, |
6130 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
6131 | |
6132 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6133 | return 0; |
6134 | } | |
6135 | ||
70ee29b4 PM |
6136 | /* |
6137 | * Remove configuration on all peer-group members, unless they are | |
6138 | * explicitely overriding peer-group configuration. | |
6139 | */ | |
6140 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6141 | /* Skip peers with overridden configuration. */ | |
6142 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
6143 | PEER_FT_FILTER_LIST)) | |
6144 | continue; | |
d62a17ae | 6145 | |
70ee29b4 PM |
6146 | /* Remove configuration on peer-group member. */ |
6147 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6148 | if (filter->aslist[direct].name) |
6149 | XFREE(MTYPE_BGP_FILTER_NAME, | |
6150 | filter->aslist[direct].name); | |
6151 | filter->aslist[direct].name = NULL; | |
6152 | filter->aslist[direct].aslist = NULL; | |
70ee29b4 PM |
6153 | |
6154 | /* Process peer route updates. */ | |
6155 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 6156 | (direct == FILTER_OUT) ? 1 : 0); |
6157 | } | |
6158 | ||
6159 | return 0; | |
6160 | } | |
6161 | ||
6162 | static void peer_aslist_update(const char *aslist_name) | |
6163 | { | |
6164 | afi_t afi; | |
6165 | safi_t safi; | |
6166 | int direct; | |
6167 | struct listnode *mnode, *mnnode; | |
6168 | struct listnode *node, *nnode; | |
6169 | struct bgp *bgp; | |
6170 | struct peer *peer; | |
6171 | struct peer_group *group; | |
6172 | struct bgp_filter *filter; | |
6173 | ||
6174 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
6175 | update_group_policy_update(bgp, BGP_POLICY_FILTER_LIST, | |
6176 | aslist_name, 0, 0); | |
6177 | ||
6178 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
05c7a1cc QY |
6179 | FOREACH_AFI_SAFI (afi, safi) { |
6180 | filter = &peer->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 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
05c7a1cc QY |
6196 | FOREACH_AFI_SAFI (afi, safi) { |
6197 | filter = &group->conf->filter[afi][safi]; | |
6198 | ||
6199 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
6200 | direct++) { | |
6201 | if (filter->aslist[direct].name) | |
6202 | filter->aslist[direct] | |
6203 | .aslist = as_list_lookup( | |
d62a17ae | 6204 | filter->aslist[direct] |
05c7a1cc QY |
6205 | .name); |
6206 | else | |
6207 | filter->aslist[direct].aslist = | |
6208 | NULL; | |
d62a17ae | 6209 | } |
05c7a1cc | 6210 | } |
d62a17ae | 6211 | } |
6212 | } | |
6213 | } | |
6214 | ||
6215 | static void peer_aslist_add(char *aslist_name) | |
6216 | { | |
6217 | peer_aslist_update(aslist_name); | |
6218 | route_map_notify_dependencies((char *)aslist_name, | |
6219 | RMAP_EVENT_ASLIST_ADDED); | |
6220 | } | |
6221 | ||
6222 | static void peer_aslist_del(const char *aslist_name) | |
6223 | { | |
6224 | peer_aslist_update(aslist_name); | |
6225 | route_map_notify_dependencies(aslist_name, RMAP_EVENT_ASLIST_DELETED); | |
6226 | } | |
6227 | ||
6228 | ||
6229 | int peer_route_map_set(struct peer *peer, afi_t afi, safi_t safi, int direct, | |
1de27621 | 6230 | const char *name, struct route_map *route_map) |
d62a17ae | 6231 | { |
70ee29b4 | 6232 | struct peer *member; |
d62a17ae | 6233 | struct bgp_filter *filter; |
d62a17ae | 6234 | struct listnode *node, *nnode; |
6235 | ||
6236 | if (direct != RMAP_IN && direct != RMAP_OUT) | |
6237 | return BGP_ERR_INVALID_VALUE; | |
6238 | ||
70ee29b4 | 6239 | /* Set configuration on peer. */ |
d62a17ae | 6240 | filter = &peer->filter[afi][safi]; |
6c3247bd NT |
6241 | if (filter->map[direct].name) { |
6242 | /* If the neighbor is configured with the same route-map | |
6243 | * again then, ignore the duplicate configuration. | |
6244 | */ | |
6245 | if (strcmp(filter->map[direct].name, name) == 0) | |
6246 | return 0; | |
6247 | ||
d62a17ae | 6248 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); |
6c3247bd | 6249 | } |
b4897fa5 | 6250 | route_map_counter_decrement(filter->map[direct].map); |
d62a17ae | 6251 | filter->map[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); |
1de27621 | 6252 | filter->map[direct].map = route_map; |
b4897fa5 | 6253 | route_map_counter_increment(route_map); |
d62a17ae | 6254 | |
70ee29b4 | 6255 | /* Check if handling a regular peer. */ |
d62a17ae | 6256 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
6257 | /* Set override-flag and process peer route updates. */ |
6258 | SET_FLAG(peer->filter_override[afi][safi][direct], | |
6259 | PEER_FT_ROUTE_MAP); | |
d62a17ae | 6260 | peer_on_policy_change(peer, afi, safi, |
6261 | (direct == RMAP_OUT) ? 1 : 0); | |
70ee29b4 PM |
6262 | |
6263 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6264 | return 0; |
6265 | } | |
6266 | ||
70ee29b4 PM |
6267 | /* |
6268 | * Set configuration on all peer-group members, unless they are | |
6269 | * explicitely overriding peer-group configuration. | |
6270 | */ | |
6271 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6272 | /* Skip peers with overridden configuration. */ | |
6273 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
6274 | PEER_FT_ROUTE_MAP)) | |
6275 | continue; | |
d62a17ae | 6276 | |
70ee29b4 PM |
6277 | /* Set configuration on peer-group member. */ |
6278 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6279 | if (filter->map[direct].name) |
6280 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); | |
b4897fa5 | 6281 | route_map_counter_decrement(filter->map[direct].map); |
d62a17ae | 6282 | filter->map[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); |
1de27621 | 6283 | filter->map[direct].map = route_map; |
b4897fa5 | 6284 | route_map_counter_increment(route_map); |
70ee29b4 PM |
6285 | |
6286 | /* Process peer route updates. */ | |
6287 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 6288 | (direct == RMAP_OUT) ? 1 : 0); |
6289 | } | |
6290 | return 0; | |
6291 | } | |
6292 | ||
6293 | /* Unset route-map from the peer. */ | |
6294 | int peer_route_map_unset(struct peer *peer, afi_t afi, safi_t safi, int direct) | |
6295 | { | |
70ee29b4 | 6296 | struct peer *member; |
d62a17ae | 6297 | struct bgp_filter *filter; |
d62a17ae | 6298 | struct listnode *node, *nnode; |
6299 | ||
6300 | if (direct != RMAP_IN && direct != RMAP_OUT) | |
6301 | return BGP_ERR_INVALID_VALUE; | |
6302 | ||
70ee29b4 PM |
6303 | /* Unset override-flag unconditionally. */ |
6304 | UNSET_FLAG(peer->filter_override[afi][safi][direct], PEER_FT_ROUTE_MAP); | |
d62a17ae | 6305 | |
70ee29b4 | 6306 | /* Inherit configuration from peer-group if peer is member. */ |
d62a17ae | 6307 | if (peer_group_active(peer)) { |
e7103a96 PM |
6308 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
6309 | filter[afi][safi].map[direct].name, | |
6310 | MTYPE_BGP_FILTER_NAME); | |
6311 | PEER_ATTR_INHERIT(peer, peer->group, | |
6312 | filter[afi][safi].map[direct].map); | |
70ee29b4 PM |
6313 | } else { |
6314 | /* Otherwise remove configuration from peer. */ | |
6315 | filter = &peer->filter[afi][safi]; | |
6316 | if (filter->map[direct].name) | |
6317 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); | |
b4897fa5 | 6318 | route_map_counter_decrement(filter->map[direct].map); |
70ee29b4 PM |
6319 | filter->map[direct].name = NULL; |
6320 | filter->map[direct].map = NULL; | |
d62a17ae | 6321 | } |
6322 | ||
70ee29b4 | 6323 | /* Check if handling a regular peer. */ |
d62a17ae | 6324 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 6325 | /* Process peer route updates. */ |
d62a17ae | 6326 | peer_on_policy_change(peer, afi, safi, |
6327 | (direct == RMAP_OUT) ? 1 : 0); | |
70ee29b4 PM |
6328 | |
6329 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6330 | return 0; |
6331 | } | |
6332 | ||
70ee29b4 PM |
6333 | /* |
6334 | * Remove configuration on all peer-group members, unless they are | |
6335 | * explicitely overriding peer-group configuration. | |
6336 | */ | |
6337 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6338 | /* Skip peers with overridden configuration. */ | |
6339 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
6340 | PEER_FT_ROUTE_MAP)) | |
6341 | continue; | |
d62a17ae | 6342 | |
70ee29b4 PM |
6343 | /* Remove configuration on peer-group member. */ |
6344 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6345 | if (filter->map[direct].name) |
6346 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); | |
b4897fa5 | 6347 | route_map_counter_decrement(filter->map[direct].map); |
d62a17ae | 6348 | filter->map[direct].name = NULL; |
6349 | filter->map[direct].map = NULL; | |
70ee29b4 PM |
6350 | |
6351 | /* Process peer route updates. */ | |
6352 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 6353 | (direct == RMAP_OUT) ? 1 : 0); |
6354 | } | |
70ee29b4 | 6355 | |
d62a17ae | 6356 | return 0; |
6357 | } | |
6358 | ||
6359 | /* Set unsuppress-map to the peer. */ | |
6360 | int peer_unsuppress_map_set(struct peer *peer, afi_t afi, safi_t safi, | |
1de27621 | 6361 | const char *name, struct route_map *route_map) |
d62a17ae | 6362 | { |
70ee29b4 | 6363 | struct peer *member; |
d62a17ae | 6364 | struct bgp_filter *filter; |
d62a17ae | 6365 | struct listnode *node, *nnode; |
6366 | ||
70ee29b4 | 6367 | /* Set configuration on peer. */ |
d62a17ae | 6368 | filter = &peer->filter[afi][safi]; |
d62a17ae | 6369 | if (filter->usmap.name) |
6370 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
b4897fa5 | 6371 | route_map_counter_decrement(filter->usmap.map); |
d62a17ae | 6372 | filter->usmap.name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); |
1de27621 | 6373 | filter->usmap.map = route_map; |
b4897fa5 | 6374 | route_map_counter_increment(route_map); |
d62a17ae | 6375 | |
70ee29b4 | 6376 | /* Check if handling a regular peer. */ |
d62a17ae | 6377 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
6378 | /* Set override-flag and process peer route updates. */ |
6379 | SET_FLAG(peer->filter_override[afi][safi][0], | |
6380 | PEER_FT_UNSUPPRESS_MAP); | |
d62a17ae | 6381 | peer_on_policy_change(peer, afi, safi, 1); |
70ee29b4 PM |
6382 | |
6383 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6384 | return 0; |
6385 | } | |
6386 | ||
70ee29b4 PM |
6387 | /* |
6388 | * Set configuration on all peer-group members, unless they are | |
6389 | * explicitely overriding peer-group configuration. | |
6390 | */ | |
6391 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6392 | /* Skip peers with overridden configuration. */ | |
246bb5f0 | 6393 | if (CHECK_FLAG(member->filter_override[afi][safi][0], |
70ee29b4 PM |
6394 | PEER_FT_UNSUPPRESS_MAP)) |
6395 | continue; | |
d62a17ae | 6396 | |
70ee29b4 PM |
6397 | /* Set configuration on peer-group member. */ |
6398 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6399 | if (filter->usmap.name) |
6400 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
b4897fa5 | 6401 | route_map_counter_decrement(filter->usmap.map); |
d62a17ae | 6402 | filter->usmap.name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); |
1de27621 | 6403 | filter->usmap.map = route_map; |
b4897fa5 | 6404 | route_map_counter_increment(route_map); |
70ee29b4 PM |
6405 | |
6406 | /* Process peer route updates. */ | |
6407 | peer_on_policy_change(member, afi, safi, 1); | |
d62a17ae | 6408 | } |
70ee29b4 | 6409 | |
d62a17ae | 6410 | return 0; |
6411 | } | |
6412 | ||
6413 | /* Unset route-map from the peer. */ | |
6414 | int peer_unsuppress_map_unset(struct peer *peer, afi_t afi, safi_t safi) | |
718e3744 | 6415 | { |
70ee29b4 | 6416 | struct peer *member; |
d62a17ae | 6417 | struct bgp_filter *filter; |
d62a17ae | 6418 | struct listnode *node, *nnode; |
6419 | ||
70ee29b4 PM |
6420 | /* Unset override-flag unconditionally. */ |
6421 | UNSET_FLAG(peer->filter_override[afi][safi][0], PEER_FT_UNSUPPRESS_MAP); | |
718e3744 | 6422 | |
70ee29b4 PM |
6423 | /* Inherit configuration from peer-group if peer is member. */ |
6424 | if (peer_group_active(peer)) { | |
e7103a96 PM |
6425 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
6426 | filter[afi][safi].usmap.name, | |
6427 | MTYPE_BGP_FILTER_NAME); | |
6428 | PEER_ATTR_INHERIT(peer, peer->group, | |
6429 | filter[afi][safi].usmap.map); | |
70ee29b4 PM |
6430 | } else { |
6431 | /* Otherwise remove configuration from peer. */ | |
6432 | filter = &peer->filter[afi][safi]; | |
6433 | if (filter->usmap.name) | |
6434 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
b4897fa5 | 6435 | route_map_counter_decrement(filter->usmap.map); |
70ee29b4 PM |
6436 | filter->usmap.name = NULL; |
6437 | filter->usmap.map = NULL; | |
6438 | } | |
718e3744 | 6439 | |
70ee29b4 | 6440 | /* Check if handling a regular peer. */ |
d62a17ae | 6441 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 6442 | /* Process peer route updates. */ |
d62a17ae | 6443 | peer_on_policy_change(peer, afi, safi, 1); |
70ee29b4 PM |
6444 | |
6445 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6446 | return 0; |
6447 | } | |
718e3744 | 6448 | |
70ee29b4 PM |
6449 | /* |
6450 | * Remove configuration on all peer-group members, unless they are | |
6451 | * explicitely overriding peer-group configuration. | |
6452 | */ | |
6453 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6454 | /* Skip peers with overridden configuration. */ | |
6455 | if (CHECK_FLAG(member->filter_override[afi][safi][0], | |
6456 | PEER_FT_UNSUPPRESS_MAP)) | |
6457 | continue; | |
718e3744 | 6458 | |
70ee29b4 PM |
6459 | /* Remove configuration on peer-group member. */ |
6460 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6461 | if (filter->usmap.name) |
6462 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
b4897fa5 | 6463 | route_map_counter_decrement(filter->usmap.map); |
d62a17ae | 6464 | filter->usmap.name = NULL; |
6465 | filter->usmap.map = NULL; | |
70ee29b4 PM |
6466 | |
6467 | /* Process peer route updates. */ | |
6468 | peer_on_policy_change(member, afi, safi, 1); | |
d62a17ae | 6469 | } |
70ee29b4 | 6470 | |
d62a17ae | 6471 | return 0; |
6472 | } | |
718e3744 | 6473 | |
d62a17ae | 6474 | int peer_maximum_prefix_set(struct peer *peer, afi_t afi, safi_t safi, |
d7c0a89a QY |
6475 | uint32_t max, uint8_t threshold, int warning, |
6476 | uint16_t restart) | |
d62a17ae | 6477 | { |
598ce6bd | 6478 | struct peer *member; |
d62a17ae | 6479 | struct listnode *node, *nnode; |
6480 | ||
598ce6bd PM |
6481 | /* Set flags and configuration on peer. */ |
6482 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_MAX_PREFIX); | |
d62a17ae | 6483 | if (warning) |
598ce6bd | 6484 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_MAX_PREFIX_WARNING); |
d62a17ae | 6485 | else |
598ce6bd PM |
6486 | peer_af_flag_unset(peer, afi, safi, |
6487 | PEER_FLAG_MAX_PREFIX_WARNING); | |
6488 | ||
04e1c5bb QY |
6489 | peer->pmax[afi][safi] = max; |
6490 | peer->pmax_threshold[afi][safi] = threshold; | |
6491 | peer->pmax_restart[afi][safi] = restart; | |
d62a17ae | 6492 | |
598ce6bd PM |
6493 | /* Check if handling a regular peer. */ |
6494 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
6495 | /* Re-check if peer violates maximum-prefix. */ | |
d62a17ae | 6496 | if ((peer->status == Established) && (peer->afc[afi][safi])) |
6497 | bgp_maximum_prefix_overflow(peer, afi, safi, 1); | |
04e1c5bb | 6498 | |
598ce6bd PM |
6499 | /* Skip peer-group mechanics for regular peers. */ |
6500 | return 0; | |
6501 | } | |
04e1c5bb | 6502 | |
598ce6bd PM |
6503 | /* |
6504 | * Set flags and configuration on all peer-group members, unless they | |
6505 | * are explicitely overriding peer-group configuration. | |
6506 | */ | |
6507 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6508 | /* Skip peers with overridden configuration. */ | |
6509 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
6510 | PEER_FLAG_MAX_PREFIX)) | |
6511 | continue; | |
04e1c5bb | 6512 | |
598ce6bd PM |
6513 | /* Set flag and configuration on peer-group member. */ |
6514 | member->pmax[afi][safi] = max; | |
6515 | member->pmax_threshold[afi][safi] = threshold; | |
6516 | member->pmax_restart[afi][safi] = restart; | |
04e1c5bb | 6517 | if (warning) |
598ce6bd | 6518 | SET_FLAG(member->af_flags[afi][safi], |
04e1c5bb QY |
6519 | PEER_FLAG_MAX_PREFIX_WARNING); |
6520 | else | |
598ce6bd | 6521 | UNSET_FLAG(member->af_flags[afi][safi], |
04e1c5bb | 6522 | PEER_FLAG_MAX_PREFIX_WARNING); |
598ce6bd PM |
6523 | |
6524 | /* Re-check if peer violates maximum-prefix. */ | |
6525 | if ((member->status == Established) && (member->afc[afi][safi])) | |
6526 | bgp_maximum_prefix_overflow(member, afi, safi, 1); | |
d62a17ae | 6527 | } |
718e3744 | 6528 | |
d62a17ae | 6529 | return 0; |
6530 | } | |
718e3744 | 6531 | |
d62a17ae | 6532 | int peer_maximum_prefix_unset(struct peer *peer, afi_t afi, safi_t safi) |
6533 | { | |
598ce6bd PM |
6534 | /* Inherit configuration from peer-group if peer is member. */ |
6535 | if (peer_group_active(peer)) { | |
6536 | peer_af_flag_inherit(peer, afi, safi, PEER_FLAG_MAX_PREFIX); | |
6537 | peer_af_flag_inherit(peer, afi, safi, | |
6538 | PEER_FLAG_MAX_PREFIX_WARNING); | |
e7103a96 PM |
6539 | PEER_ATTR_INHERIT(peer, peer->group, pmax[afi][safi]); |
6540 | PEER_ATTR_INHERIT(peer, peer->group, pmax_threshold[afi][safi]); | |
6541 | PEER_ATTR_INHERIT(peer, peer->group, pmax_restart[afi][safi]); | |
04e1c5bb | 6542 | |
d62a17ae | 6543 | return 0; |
04e1c5bb | 6544 | } |
d62a17ae | 6545 | |
598ce6bd PM |
6546 | /* Remove flags and configuration from peer. */ |
6547 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_MAX_PREFIX); | |
6548 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_MAX_PREFIX_WARNING); | |
6549 | peer->pmax[afi][safi] = 0; | |
6550 | peer->pmax_threshold[afi][safi] = 0; | |
6551 | peer->pmax_restart[afi][safi] = 0; | |
6552 | ||
04e1c5bb | 6553 | /* |
598ce6bd PM |
6554 | * Remove flags and configuration from all peer-group members, unless |
6555 | * they are explicitely overriding peer-group configuration. | |
04e1c5bb | 6556 | */ |
6282637d RW |
6557 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
6558 | struct peer *member; | |
6559 | struct listnode *node; | |
598ce6bd | 6560 | |
6282637d RW |
6561 | for (ALL_LIST_ELEMENTS_RO(peer->group->peer, node, member)) { |
6562 | /* Skip peers with overridden configuration. */ | |
6563 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
6564 | PEER_FLAG_MAX_PREFIX)) | |
6565 | continue; | |
6566 | ||
6567 | /* Remove flag and configuration on peer-group member. | |
6568 | */ | |
6569 | UNSET_FLAG(member->af_flags[afi][safi], | |
6570 | PEER_FLAG_MAX_PREFIX); | |
6571 | UNSET_FLAG(member->af_flags[afi][safi], | |
6572 | PEER_FLAG_MAX_PREFIX_WARNING); | |
6573 | member->pmax[afi][safi] = 0; | |
6574 | member->pmax_threshold[afi][safi] = 0; | |
6575 | member->pmax_restart[afi][safi] = 0; | |
6576 | } | |
d62a17ae | 6577 | } |
598ce6bd | 6578 | |
d62a17ae | 6579 | return 0; |
718e3744 | 6580 | } |
6581 | ||
d62a17ae | 6582 | int is_ebgp_multihop_configured(struct peer *peer) |
718e3744 | 6583 | { |
d62a17ae | 6584 | struct peer_group *group; |
6585 | struct listnode *node, *nnode; | |
6586 | struct peer *peer1; | |
718e3744 | 6587 | |
d62a17ae | 6588 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
6589 | group = peer->group; | |
6590 | if ((peer_sort(peer) != BGP_PEER_IBGP) | |
c8d6f0d6 | 6591 | && (group->conf->ttl != BGP_DEFAULT_TTL)) |
d62a17ae | 6592 | return 1; |
718e3744 | 6593 | |
d62a17ae | 6594 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer1)) { |
6595 | if ((peer_sort(peer1) != BGP_PEER_IBGP) | |
c8d6f0d6 | 6596 | && (peer1->ttl != BGP_DEFAULT_TTL)) |
d62a17ae | 6597 | return 1; |
6598 | } | |
6599 | } else { | |
c8d6f0d6 DA |
6600 | if ((peer_sort(peer) != BGP_PEER_IBGP) |
6601 | && (peer->ttl != BGP_DEFAULT_TTL)) | |
d62a17ae | 6602 | return 1; |
6603 | } | |
6604 | return 0; | |
6605 | } | |
718e3744 | 6606 | |
d62a17ae | 6607 | /* Set # of hops between us and BGP peer. */ |
6608 | int peer_ttl_security_hops_set(struct peer *peer, int gtsm_hops) | |
6609 | { | |
6610 | struct peer_group *group; | |
6611 | struct listnode *node, *nnode; | |
6612 | int ret; | |
6613 | ||
6614 | zlog_debug("peer_ttl_security_hops_set: set gtsm_hops to %d for %s", | |
6615 | gtsm_hops, peer->host); | |
6616 | ||
6617 | /* We cannot configure ttl-security hops when ebgp-multihop is already | |
6618 | set. For non peer-groups, the check is simple. For peer-groups, | |
6619 | it's | |
6620 | slightly messy, because we need to check both the peer-group | |
6621 | structure | |
6622 | and all peer-group members for any trace of ebgp-multihop | |
6623 | configuration | |
6624 | before actually applying the ttl-security rules. Cisco really made a | |
6625 | mess of this configuration parameter, and OpenBGPD got it right. | |
6626 | */ | |
6627 | ||
6628 | if ((peer->gtsm_hops == 0) && (peer->sort != BGP_PEER_IBGP)) { | |
6629 | if (is_ebgp_multihop_configured(peer)) | |
6630 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
6631 | ||
6632 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
6633 | peer->gtsm_hops = gtsm_hops; | |
6634 | ||
6635 | /* Calling ebgp multihop also resets the session. | |
6636 | * On restart, NHT will get setup correctly as will the | |
6637 | * min & max ttls on the socket. The return value is | |
6638 | * irrelevant. | |
6639 | */ | |
6640 | ret = peer_ebgp_multihop_set(peer, MAXTTL); | |
6641 | ||
6642 | if (ret != 0) | |
6643 | return ret; | |
6644 | } else { | |
6645 | group = peer->group; | |
6646 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, | |
6647 | peer)) { | |
6648 | peer->gtsm_hops = group->conf->gtsm_hops; | |
6649 | ||
6650 | /* Calling ebgp multihop also resets the | |
6651 | * session. | |
6652 | * On restart, NHT will get setup correctly as | |
6653 | * will the | |
6654 | * min & max ttls on the socket. The return | |
6655 | * value is | |
6656 | * irrelevant. | |
6657 | */ | |
6658 | peer_ebgp_multihop_set(peer, MAXTTL); | |
6659 | } | |
6660 | } | |
6661 | } else { | |
6662 | /* Post the first gtsm setup or if its ibgp, maxttl setting | |
6663 | * isn't | |
6664 | * necessary, just set the minttl. | |
6665 | */ | |
6666 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
6667 | peer->gtsm_hops = gtsm_hops; | |
6668 | ||
6669 | if (peer->fd >= 0) | |
6670 | sockopt_minttl(peer->su.sa.sa_family, peer->fd, | |
6671 | MAXTTL + 1 - gtsm_hops); | |
6672 | if ((peer->status < Established) && peer->doppelganger | |
6673 | && (peer->doppelganger->fd >= 0)) | |
6674 | sockopt_minttl(peer->su.sa.sa_family, | |
6675 | peer->doppelganger->fd, | |
6676 | MAXTTL + 1 - gtsm_hops); | |
6677 | } else { | |
6678 | group = peer->group; | |
6679 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, | |
6680 | peer)) { | |
6681 | peer->gtsm_hops = group->conf->gtsm_hops; | |
6682 | ||
6683 | /* Change setting of existing peer | |
6684 | * established then change value (may break | |
6685 | * connectivity) | |
6686 | * not established yet (teardown session and | |
6687 | * restart) | |
6688 | * no session then do nothing (will get | |
6689 | * handled by next connection) | |
6690 | */ | |
6691 | if (peer->fd >= 0 && peer->gtsm_hops != 0) | |
6692 | sockopt_minttl( | |
6693 | peer->su.sa.sa_family, peer->fd, | |
6694 | MAXTTL + 1 - peer->gtsm_hops); | |
6695 | if ((peer->status < Established) | |
6696 | && peer->doppelganger | |
6697 | && (peer->doppelganger->fd >= 0)) | |
6698 | sockopt_minttl(peer->su.sa.sa_family, | |
6699 | peer->doppelganger->fd, | |
6700 | MAXTTL + 1 - gtsm_hops); | |
6701 | } | |
6702 | } | |
6703 | } | |
718e3744 | 6704 | |
d62a17ae | 6705 | return 0; |
718e3744 | 6706 | } |
6707 | ||
d62a17ae | 6708 | int peer_ttl_security_hops_unset(struct peer *peer) |
6709 | { | |
6710 | struct peer_group *group; | |
6711 | struct listnode *node, *nnode; | |
6712 | int ret = 0; | |
6713 | ||
6714 | zlog_debug("peer_ttl_security_hops_unset: set gtsm_hops to zero for %s", | |
6715 | peer->host); | |
6716 | ||
6717 | /* if a peer-group member, then reset to peer-group default rather than | |
6718 | * 0 */ | |
6719 | if (peer_group_active(peer)) | |
6720 | peer->gtsm_hops = peer->group->conf->gtsm_hops; | |
6721 | else | |
6722 | peer->gtsm_hops = 0; | |
6723 | ||
6724 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
6725 | /* Invoking ebgp_multihop_set will set the TTL back to the | |
6726 | * original | |
6727 | * value as well as restting the NHT and such. The session is | |
6728 | * reset. | |
6729 | */ | |
6730 | if (peer->sort == BGP_PEER_EBGP) | |
6731 | ret = peer_ebgp_multihop_unset(peer); | |
6732 | else { | |
6733 | if (peer->fd >= 0) | |
6734 | sockopt_minttl(peer->su.sa.sa_family, peer->fd, | |
6735 | 0); | |
6736 | ||
6737 | if ((peer->status < Established) && peer->doppelganger | |
6738 | && (peer->doppelganger->fd >= 0)) | |
6739 | sockopt_minttl(peer->su.sa.sa_family, | |
6740 | peer->doppelganger->fd, 0); | |
6741 | } | |
6742 | } else { | |
6743 | group = peer->group; | |
6744 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
6745 | peer->gtsm_hops = 0; | |
6746 | if (peer->sort == BGP_PEER_EBGP) | |
6747 | ret = peer_ebgp_multihop_unset(peer); | |
6748 | else { | |
6749 | if (peer->fd >= 0) | |
6750 | sockopt_minttl(peer->su.sa.sa_family, | |
6751 | peer->fd, 0); | |
6752 | ||
6753 | if ((peer->status < Established) | |
6754 | && peer->doppelganger | |
6755 | && (peer->doppelganger->fd >= 0)) | |
6756 | sockopt_minttl(peer->su.sa.sa_family, | |
6757 | peer->doppelganger->fd, | |
6758 | 0); | |
6759 | } | |
6760 | } | |
6761 | } | |
718e3744 | 6762 | |
d62a17ae | 6763 | return ret; |
6764 | } | |
6765 | ||
6766 | /* | |
6767 | * If peer clear is invoked in a loop for all peers on the BGP instance, | |
6768 | * it may end up freeing the doppelganger, and if this was the next node | |
6769 | * to the current node, we would end up accessing the freed next node. | |
6770 | * Pass along additional parameter which can be updated if next node | |
6771 | * is freed; only required when walking the peer list on BGP instance. | |
6772 | */ | |
6773 | int peer_clear(struct peer *peer, struct listnode **nnode) | |
6774 | { | |
6775 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_SHUTDOWN)) { | |
6776 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_PREFIX_OVERFLOW)) { | |
6777 | UNSET_FLAG(peer->sflags, PEER_STATUS_PREFIX_OVERFLOW); | |
6778 | if (peer->t_pmax_restart) { | |
6779 | BGP_TIMER_OFF(peer->t_pmax_restart); | |
6780 | if (bgp_debug_neighbor_events(peer)) | |
6781 | zlog_debug( | |
6782 | "%s Maximum-prefix restart timer canceled", | |
6783 | peer->host); | |
6784 | } | |
6785 | BGP_EVENT_ADD(peer, BGP_Start); | |
6786 | return 0; | |
6787 | } | |
6788 | ||
6789 | peer->v_start = BGP_INIT_START_TIMER; | |
6790 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
6791 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
6792 | BGP_NOTIFY_CEASE_ADMIN_RESET); | |
6793 | else | |
6794 | bgp_session_reset_safe(peer, nnode); | |
718e3744 | 6795 | } |
d62a17ae | 6796 | return 0; |
718e3744 | 6797 | } |
6b0655a2 | 6798 | |
d62a17ae | 6799 | int peer_clear_soft(struct peer *peer, afi_t afi, safi_t safi, |
6800 | enum bgp_clear_type stype) | |
718e3744 | 6801 | { |
d62a17ae | 6802 | struct peer_af *paf; |
718e3744 | 6803 | |
d62a17ae | 6804 | if (peer->status != Established) |
6805 | return 0; | |
718e3744 | 6806 | |
d62a17ae | 6807 | if (!peer->afc[afi][safi]) |
6808 | return BGP_ERR_AF_UNCONFIGURED; | |
718e3744 | 6809 | |
d62a17ae | 6810 | peer->rtt = sockopt_tcp_rtt(peer->fd); |
718e3744 | 6811 | |
d62a17ae | 6812 | if (stype == BGP_CLEAR_SOFT_OUT || stype == BGP_CLEAR_SOFT_BOTH) { |
6813 | /* Clear the "neighbor x.x.x.x default-originate" flag */ | |
6814 | paf = peer_af_find(peer, afi, safi); | |
6815 | if (paf && paf->subgroup | |
6816 | && CHECK_FLAG(paf->subgroup->sflags, | |
6817 | SUBGRP_STATUS_DEFAULT_ORIGINATE)) | |
6818 | UNSET_FLAG(paf->subgroup->sflags, | |
6819 | SUBGRP_STATUS_DEFAULT_ORIGINATE); | |
718e3744 | 6820 | |
d62a17ae | 6821 | bgp_announce_route(peer, afi, safi); |
6822 | } | |
718e3744 | 6823 | |
d62a17ae | 6824 | if (stype == BGP_CLEAR_SOFT_IN_ORF_PREFIX) { |
6825 | if (CHECK_FLAG(peer->af_cap[afi][safi], | |
6826 | PEER_CAP_ORF_PREFIX_SM_ADV) | |
6827 | && (CHECK_FLAG(peer->af_cap[afi][safi], | |
6828 | PEER_CAP_ORF_PREFIX_RM_RCV) | |
6829 | || CHECK_FLAG(peer->af_cap[afi][safi], | |
6830 | PEER_CAP_ORF_PREFIX_RM_OLD_RCV))) { | |
6831 | struct bgp_filter *filter = &peer->filter[afi][safi]; | |
d7c0a89a | 6832 | uint8_t prefix_type; |
d62a17ae | 6833 | |
6834 | if (CHECK_FLAG(peer->af_cap[afi][safi], | |
6835 | PEER_CAP_ORF_PREFIX_RM_RCV)) | |
6836 | prefix_type = ORF_TYPE_PREFIX; | |
6837 | else | |
6838 | prefix_type = ORF_TYPE_PREFIX_OLD; | |
6839 | ||
6840 | if (filter->plist[FILTER_IN].plist) { | |
6841 | if (CHECK_FLAG(peer->af_sflags[afi][safi], | |
6842 | PEER_STATUS_ORF_PREFIX_SEND)) | |
6843 | bgp_route_refresh_send( | |
6844 | peer, afi, safi, prefix_type, | |
6845 | REFRESH_DEFER, 1); | |
6846 | bgp_route_refresh_send(peer, afi, safi, | |
6847 | prefix_type, | |
6848 | REFRESH_IMMEDIATE, 0); | |
6849 | } else { | |
6850 | if (CHECK_FLAG(peer->af_sflags[afi][safi], | |
6851 | PEER_STATUS_ORF_PREFIX_SEND)) | |
6852 | bgp_route_refresh_send( | |
6853 | peer, afi, safi, prefix_type, | |
6854 | REFRESH_IMMEDIATE, 1); | |
6855 | else | |
6856 | bgp_route_refresh_send(peer, afi, safi, | |
6857 | 0, 0, 0); | |
6858 | } | |
6859 | return 0; | |
6860 | } | |
6861 | } | |
718e3744 | 6862 | |
d62a17ae | 6863 | if (stype == BGP_CLEAR_SOFT_IN || stype == BGP_CLEAR_SOFT_BOTH |
6864 | || stype == BGP_CLEAR_SOFT_IN_ORF_PREFIX) { | |
6865 | /* If neighbor has soft reconfiguration inbound flag. | |
6866 | Use Adj-RIB-In database. */ | |
6867 | if (CHECK_FLAG(peer->af_flags[afi][safi], | |
6868 | PEER_FLAG_SOFT_RECONFIG)) | |
6869 | bgp_soft_reconfig_in(peer, afi, safi); | |
6870 | else { | |
6871 | /* If neighbor has route refresh capability, send route | |
6872 | refresh | |
6873 | message to the peer. */ | |
6874 | if (CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_OLD_RCV) | |
6875 | || CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_NEW_RCV)) | |
6876 | bgp_route_refresh_send(peer, afi, safi, 0, 0, | |
6877 | 0); | |
6878 | else | |
6879 | return BGP_ERR_SOFT_RECONFIG_UNCONFIGURED; | |
6880 | } | |
6881 | } | |
6882 | return 0; | |
718e3744 | 6883 | } |
6884 | ||
d62a17ae | 6885 | /* Display peer uptime.*/ |
9f049418 | 6886 | char *peer_uptime(time_t uptime2, char *buf, size_t len, bool use_json, |
d62a17ae | 6887 | json_object *json) |
6888 | { | |
6889 | time_t uptime1, epoch_tbuf; | |
6890 | struct tm *tm; | |
6891 | ||
d62a17ae | 6892 | /* If there is no connection has been done before print `never'. */ |
6893 | if (uptime2 == 0) { | |
6894 | if (use_json) { | |
6895 | json_object_string_add(json, "peerUptime", "never"); | |
6896 | json_object_int_add(json, "peerUptimeMsec", 0); | |
6897 | } else | |
6898 | snprintf(buf, len, "never"); | |
6899 | return buf; | |
6900 | } | |
718e3744 | 6901 | |
d62a17ae | 6902 | /* Get current time. */ |
6903 | uptime1 = bgp_clock(); | |
6904 | uptime1 -= uptime2; | |
6905 | tm = gmtime(&uptime1); | |
718e3744 | 6906 | |
d62a17ae | 6907 | if (uptime1 < ONE_DAY_SECOND) |
6908 | snprintf(buf, len, "%02d:%02d:%02d", tm->tm_hour, tm->tm_min, | |
6909 | tm->tm_sec); | |
6910 | else if (uptime1 < ONE_WEEK_SECOND) | |
6911 | snprintf(buf, len, "%dd%02dh%02dm", tm->tm_yday, tm->tm_hour, | |
6912 | tm->tm_min); | |
6913 | else if (uptime1 < ONE_YEAR_SECOND) | |
6914 | snprintf(buf, len, "%02dw%dd%02dh", tm->tm_yday / 7, | |
6915 | tm->tm_yday - ((tm->tm_yday / 7) * 7), tm->tm_hour); | |
6916 | else | |
6917 | snprintf(buf, len, "%02dy%02dw%dd", tm->tm_year - 70, | |
6918 | tm->tm_yday / 7, | |
6919 | tm->tm_yday - ((tm->tm_yday / 7) * 7)); | |
6920 | ||
6921 | if (use_json) { | |
6922 | epoch_tbuf = time(NULL) - uptime1; | |
6923 | json_object_string_add(json, "peerUptime", buf); | |
6924 | json_object_int_add(json, "peerUptimeMsec", uptime1 * 1000); | |
6925 | json_object_int_add(json, "peerUptimeEstablishedEpoch", | |
6926 | epoch_tbuf); | |
6927 | } | |
718e3744 | 6928 | |
d62a17ae | 6929 | return buf; |
718e3744 | 6930 | } |
6931 | ||
c2d020ad | 6932 | void bgp_master_init(struct thread_master *master, const int buffer_size) |
718e3744 | 6933 | { |
d62a17ae | 6934 | qobj_init(); |
0e64d123 | 6935 | |
d62a17ae | 6936 | memset(&bgp_master, 0, sizeof(struct bgp_master)); |
718e3744 | 6937 | |
d62a17ae | 6938 | bm = &bgp_master; |
6939 | bm->bgp = list_new(); | |
6940 | bm->listen_sockets = list_new(); | |
6941 | bm->port = BGP_PORT_DEFAULT; | |
6942 | bm->master = master; | |
6943 | bm->start_time = bgp_clock(); | |
6944 | bm->t_rmap_update = NULL; | |
6945 | bm->rmap_update_timer = RMAP_DEFAULT_UPDATE_TIMER; | |
97b4a0ec | 6946 | bm->terminating = false; |
c2d020ad | 6947 | bm->socket_buffer = buffer_size; |
495f0b13 | 6948 | |
d62a17ae | 6949 | bgp_process_queue_init(); |
b8fd6a15 | 6950 | |
48ecf8f5 | 6951 | bgp_mac_init(); |
e9eb5f63 | 6952 | /* init the rd id space. |
6953 | assign 0th index in the bitfield, | |
523cafc4 | 6954 | so that we start with id 1 |
6955 | */ | |
e9eb5f63 | 6956 | bf_init(bm->rd_idspace, UINT16_MAX); |
6957 | bf_assign_zero_index(bm->rd_idspace); | |
6958 | ||
955bfd98 | 6959 | /* mpls label dynamic allocation pool */ |
e70e9f8e | 6960 | bgp_lp_init(bm->master, &bm->labelpool); |
955bfd98 | 6961 | |
d62a17ae | 6962 | QOBJ_REG(bm, bgp_master); |
718e3744 | 6963 | } |
200df115 | 6964 | |
ad4cbda1 | 6965 | /* |
009b18fc | 6966 | * Free up connected routes and interfaces for a BGP instance. Invoked upon |
6967 | * instance delete (non-default only) or BGP exit. | |
ad4cbda1 | 6968 | */ |
d62a17ae | 6969 | static void bgp_if_finish(struct bgp *bgp) |
ad4cbda1 | 6970 | { |
ee66b77f | 6971 | struct vrf *vrf; |
d62a17ae | 6972 | struct interface *ifp; |
6973 | ||
ee66b77f PG |
6974 | vrf = bgp_vrf_lookup_by_instance_type(bgp); |
6975 | ||
f4e14fdb | 6976 | if (bgp->inst_type == BGP_INSTANCE_TYPE_VIEW || !vrf) |
d62a17ae | 6977 | return; |
ad4cbda1 | 6978 | |
451fda4f | 6979 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 6980 | struct listnode *c_node, *c_nnode; |
6981 | struct connected *c; | |
ad4cbda1 | 6982 | |
d62a17ae | 6983 | for (ALL_LIST_ELEMENTS(ifp->connected, c_node, c_nnode, c)) |
6984 | bgp_connected_delete(bgp, c); | |
6985 | } | |
ad4cbda1 | 6986 | } |
6b0655a2 | 6987 | |
d62a17ae | 6988 | static void bgp_viewvrf_autocomplete(vector comps, struct cmd_token *token) |
18c57037 | 6989 | { |
d62a17ae | 6990 | struct vrf *vrf = NULL; |
6991 | struct listnode *next; | |
6992 | struct bgp *bgp; | |
18c57037 | 6993 | |
6a8ca00f PG |
6994 | RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) |
6995 | vector_set(comps, XSTRDUP(MTYPE_COMPLETION, vrf->name)); | |
18c57037 | 6996 | |
d62a17ae | 6997 | for (ALL_LIST_ELEMENTS_RO(bm->bgp, next, bgp)) { |
6998 | if (bgp->inst_type != BGP_INSTANCE_TYPE_VIEW) | |
6999 | continue; | |
18c57037 | 7000 | |
d62a17ae | 7001 | vector_set(comps, XSTRDUP(MTYPE_COMPLETION, bgp->name)); |
7002 | } | |
18c57037 DS |
7003 | } |
7004 | ||
2ed9fe4a DL |
7005 | static void bgp_instasn_autocomplete(vector comps, struct cmd_token *token) |
7006 | { | |
7007 | struct listnode *next, *next2; | |
7008 | struct bgp *bgp, *bgp2; | |
7009 | char buf[11]; | |
7010 | ||
7011 | for (ALL_LIST_ELEMENTS_RO(bm->bgp, next, bgp)) { | |
7012 | /* deduplicate */ | |
7013 | for (ALL_LIST_ELEMENTS_RO(bm->bgp, next2, bgp2)) { | |
7014 | if (bgp2->as == bgp->as) | |
7015 | break; | |
7016 | if (bgp2 == bgp) | |
7017 | break; | |
7018 | } | |
7019 | if (bgp2 != bgp) | |
7020 | continue; | |
7021 | ||
7022 | snprintf(buf, sizeof(buf), "%u", bgp->as); | |
7023 | vector_set(comps, XSTRDUP(MTYPE_COMPLETION, buf)); | |
7024 | } | |
7025 | } | |
7026 | ||
18c57037 | 7027 | static const struct cmd_variable_handler bgp_viewvrf_var_handlers[] = { |
d62a17ae | 7028 | {.tokenname = "VIEWVRFNAME", .completions = bgp_viewvrf_autocomplete}, |
2ed9fe4a | 7029 | {.varname = "instasn", .completions = bgp_instasn_autocomplete}, |
d62a17ae | 7030 | {.completions = NULL}, |
18c57037 DS |
7031 | }; |
7032 | ||
1ac267a2 DL |
7033 | struct frr_pthread *bgp_pth_io; |
7034 | struct frr_pthread *bgp_pth_ka; | |
7035 | ||
4d762f26 | 7036 | static void bgp_pthreads_init(void) |
2d4ee774 | 7037 | { |
1ac267a2 DL |
7038 | assert(!bgp_pth_io); |
7039 | assert(!bgp_pth_ka); | |
7040 | ||
a715eab3 | 7041 | struct frr_pthread_attr io = { |
a715eab3 QY |
7042 | .start = frr_pthread_attr_default.start, |
7043 | .stop = frr_pthread_attr_default.stop, | |
a715eab3 QY |
7044 | }; |
7045 | struct frr_pthread_attr ka = { | |
a715eab3 QY |
7046 | .start = bgp_keepalives_start, |
7047 | .stop = bgp_keepalives_stop, | |
a715eab3 | 7048 | }; |
1ac267a2 DL |
7049 | bgp_pth_io = frr_pthread_new(&io, "BGP I/O thread", "bgpd_io"); |
7050 | bgp_pth_ka = frr_pthread_new(&ka, "BGP Keepalives thread", "bgpd_ka"); | |
419dfe6a QY |
7051 | } |
7052 | ||
4d762f26 | 7053 | void bgp_pthreads_run(void) |
419dfe6a | 7054 | { |
1ac267a2 DL |
7055 | frr_pthread_run(bgp_pth_io, NULL); |
7056 | frr_pthread_run(bgp_pth_ka, NULL); | |
88b24dee | 7057 | |
a715eab3 | 7058 | /* Wait until threads are ready. */ |
1ac267a2 DL |
7059 | frr_pthread_wait_running(bgp_pth_io); |
7060 | frr_pthread_wait_running(bgp_pth_ka); | |
2d4ee774 QY |
7061 | } |
7062 | ||
4d762f26 | 7063 | void bgp_pthreads_finish(void) |
2d4ee774 | 7064 | { |
0ca8b79f | 7065 | frr_pthread_stop_all(); |
2d4ee774 QY |
7066 | } |
7067 | ||
f533be73 | 7068 | void bgp_init(unsigned short instance) |
718e3744 | 7069 | { |
fc9a856f | 7070 | |
d62a17ae | 7071 | /* allocates some vital data structures used by peer commands in |
7072 | * vty_init */ | |
718e3744 | 7073 | |
419dfe6a QY |
7074 | /* pre-init pthreads */ |
7075 | bgp_pthreads_init(); | |
7076 | ||
d62a17ae | 7077 | /* Init zebra. */ |
f533be73 | 7078 | bgp_zebra_init(bm->master, instance); |
718e3744 | 7079 | |
65efcfce | 7080 | #if ENABLE_BGP_VNC |
d62a17ae | 7081 | vnc_zebra_init(bm->master); |
65efcfce LB |
7082 | #endif |
7083 | ||
d62a17ae | 7084 | /* BGP VTY commands installation. */ |
7085 | bgp_vty_init(); | |
7086 | ||
7087 | /* BGP inits. */ | |
7088 | bgp_attr_init(); | |
7089 | bgp_debug_init(); | |
7090 | bgp_dump_init(); | |
7091 | bgp_route_init(); | |
7092 | bgp_route_map_init(); | |
7093 | bgp_scan_vty_init(); | |
7094 | bgp_mplsvpn_init(); | |
65efcfce | 7095 | #if ENABLE_BGP_VNC |
d62a17ae | 7096 | rfapi_init(); |
65efcfce | 7097 | #endif |
d62a17ae | 7098 | bgp_ethernetvpn_init(); |
7c40bf39 | 7099 | bgp_flowspec_vty_init(); |
d62a17ae | 7100 | |
7101 | /* Access list initialize. */ | |
7102 | access_list_init(); | |
7103 | access_list_add_hook(peer_distribute_update); | |
7104 | access_list_delete_hook(peer_distribute_update); | |
7105 | ||
7106 | /* Filter list initialize. */ | |
7107 | bgp_filter_init(); | |
7108 | as_list_add_hook(peer_aslist_add); | |
7109 | as_list_delete_hook(peer_aslist_del); | |
7110 | ||
7111 | /* Prefix list initialize.*/ | |
7112 | prefix_list_init(); | |
7113 | prefix_list_add_hook(peer_prefix_list_update); | |
7114 | prefix_list_delete_hook(peer_prefix_list_update); | |
7115 | ||
7116 | /* Community list initialize. */ | |
7117 | bgp_clist = community_list_init(); | |
7118 | ||
7119 | /* BFD init */ | |
7120 | bgp_bfd_init(); | |
7121 | ||
7122 | cmd_variable_handler_register(bgp_viewvrf_var_handlers); | |
7123 | } | |
7124 | ||
7125 | void bgp_terminate(void) | |
7126 | { | |
7127 | struct bgp *bgp; | |
7128 | struct peer *peer; | |
7129 | struct listnode *node, *nnode; | |
7130 | struct listnode *mnode, *mnnode; | |
7131 | ||
7132 | QOBJ_UNREG(bm); | |
7133 | ||
7134 | /* Close the listener sockets first as this prevents peers from | |
7135 | * attempting | |
7136 | * to reconnect on receiving the peer unconfig message. In the presence | |
7137 | * of a large number of peers this will ensure that no peer is left with | |
7138 | * a dangling connection | |
7139 | */ | |
7140 | /* reverse bgp_master_init */ | |
7141 | bgp_close(); | |
c3004bc4 | 7142 | |
d62a17ae | 7143 | if (bm->listen_sockets) |
6a154c88 | 7144 | list_delete(&bm->listen_sockets); |
d62a17ae | 7145 | |
7146 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) | |
7147 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
7148 | if (peer->status == Established | |
7149 | || peer->status == OpenSent | |
7150 | || peer->status == OpenConfirm) | |
7151 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
7152 | BGP_NOTIFY_CEASE_PEER_UNCONFIG); | |
7153 | ||
e208c8f9 DS |
7154 | if (bm->process_main_queue) |
7155 | work_queue_free_and_null(&bm->process_main_queue); | |
d62a17ae | 7156 | |
7157 | if (bm->t_rmap_update) | |
7158 | BGP_TIMER_OFF(bm->t_rmap_update); | |
955bfd98 | 7159 | |
48ecf8f5 | 7160 | bgp_mac_finish(); |
545acafb | 7161 | } |
dcc1615e DD |
7162 | |
7163 | struct peer *peer_lookup_in_view(struct vty *vty, struct bgp *bgp, | |
7164 | const char *ip_str, bool use_json) | |
7165 | { | |
7166 | int ret; | |
7167 | struct peer *peer; | |
7168 | union sockunion su; | |
7169 | ||
7170 | /* Get peer sockunion. */ | |
7171 | ret = str2sockunion(ip_str, &su); | |
7172 | if (ret < 0) { | |
7173 | peer = peer_lookup_by_conf_if(bgp, ip_str); | |
7174 | if (!peer) { | |
7175 | peer = peer_lookup_by_hostname(bgp, ip_str); | |
7176 | ||
7177 | if (!peer) { | |
7178 | if (use_json) { | |
7179 | json_object *json_no = NULL; | |
7180 | json_no = json_object_new_object(); | |
7181 | json_object_string_add( | |
7182 | json_no, | |
7183 | "malformedAddressOrName", | |
7184 | ip_str); | |
7185 | vty_out(vty, "%s\n", | |
7186 | json_object_to_json_string_ext( | |
7187 | json_no, | |
7188 | JSON_C_TO_STRING_PRETTY)); | |
7189 | json_object_free(json_no); | |
7190 | } else | |
7191 | vty_out(vty, | |
7192 | "%% Malformed address or name: %s\n", | |
7193 | ip_str); | |
7194 | return NULL; | |
7195 | } | |
7196 | } | |
7197 | return peer; | |
7198 | } | |
7199 | ||
7200 | /* Peer structure lookup. */ | |
7201 | peer = peer_lookup(bgp, &su); | |
7202 | if (!peer) { | |
7203 | if (use_json) { | |
7204 | json_object *json_no = NULL; | |
7205 | json_no = json_object_new_object(); | |
7206 | json_object_string_add(json_no, "warning", | |
7207 | "No such neighbor in this view/vrf"); | |
7208 | vty_out(vty, "%s\n", | |
7209 | json_object_to_json_string_ext( | |
7210 | json_no, JSON_C_TO_STRING_PRETTY)); | |
7211 | json_object_free(json_no); | |
7212 | } else | |
7213 | vty_out(vty, "No such neighbor in this view/vrf\n"); | |
7214 | return NULL; | |
7215 | } | |
7216 | ||
7217 | return peer; | |
7218 | } | |
7219 | ||
794b37d5 | 7220 | void bgp_gr_apply_running_config(void) |
7221 | { | |
7222 | struct peer *peer = NULL; | |
7223 | struct bgp *bgp = NULL; | |
7224 | struct listnode *node, *nnode; | |
7225 | ||
7226 | if (BGP_DEBUG(graceful_restart, GRACEFUL_RESTART)) | |
7227 | zlog_debug( | |
7228 | "BGP_GR:: %s called !", | |
7229 | __func__); | |
7230 | ||
7231 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) | |
7232 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
7233 | bgp_peer_gr_flags_update(peer); | |
7234 | } |