]>
Commit | Line | Data |
---|---|---|
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 | ||
2ba1fe69 | 1112 | int local_GLOBAL_GR_FSM[BGP_GLOBAL_GR_MODE][BGP_GLOBAL_GR_EVENT_CMD] = { |
794b37d5 | 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; | |
dc95985f | 1150 | bgp->present_zebra_gr_state = ZEBRA_GR_DISABLE; |
794b37d5 | 1151 | |
1152 | return BGP_GR_SUCCESS; | |
1153 | } | |
1154 | ||
1155 | int bgp_peer_gr_init(struct peer *peer) | |
1156 | { | |
1157 | if (BGP_DEBUG(graceful_restart, GRACEFUL_RESTART)) | |
1158 | zlog_debug("%s called ..", __func__); | |
1159 | ||
2ba1fe69 | 1160 | struct bgp_peer_gr local_Peer_GR_FSM[BGP_PEER_GR_MODE] |
1161 | [BGP_PEER_GR_EVENT_CMD] = { | |
794b37d5 | 1162 | { |
1163 | /* PEER_HELPER Mode */ | |
1164 | /* Event-> */ /* PEER_GR_CMD */ /* NO_PEER_GR_CMD */ | |
1165 | { PEER_GR, bgp_peer_gr_action }, {PEER_INVALID, NULL }, | |
2ba1fe69 | 1166 | /* Event-> */ /* PEER_DISABLE_CMD */ /* NO_PEER_DISABLE_CMD */ |
794b37d5 | 1167 | {PEER_DISABLE, bgp_peer_gr_action }, {PEER_INVALID, NULL }, |
1168 | /* Event-> */ /* PEER_HELPER_cmd */ /* NO_PEER_HELPER_CMD */ | |
1169 | { PEER_INVALID, NULL }, {PEER_GLOBAL_INHERIT, | |
1170 | bgp_peer_gr_action } | |
1171 | }, | |
1172 | { | |
1173 | /* PEER_GR Mode */ | |
1174 | /* Event-> */ /* PEER_GR_CMD */ /* NO_PEER_GR_CMD */ | |
1175 | { PEER_INVALID, NULL }, { PEER_GLOBAL_INHERIT, | |
1176 | bgp_peer_gr_action }, | |
2ba1fe69 | 1177 | /* Event-> */ /* PEER_DISABLE_CMD */ /* NO_PEER_DISABLE_CMD */ |
794b37d5 | 1178 | {PEER_DISABLE, bgp_peer_gr_action }, { PEER_INVALID, NULL }, |
1179 | /* Event-> */ /* PEER_HELPER_cmd */ /* NO_PEER_HELPER_CMD */ | |
1180 | { PEER_HELPER, bgp_peer_gr_action }, { PEER_INVALID, NULL } | |
1181 | }, | |
1182 | { | |
1183 | /* PEER_DISABLE Mode */ | |
1184 | /* Event-> */ /* PEER_GR_CMD */ /* NO_PEER_GR_CMD */ | |
1185 | { PEER_GR, bgp_peer_gr_action }, { PEER_INVALID, NULL }, | |
2ba1fe69 | 1186 | /* Event-> */ /* PEER_DISABLE_CMD */ /* NO_PEER_DISABLE_CMD */ |
794b37d5 | 1187 | { PEER_INVALID, NULL }, { PEER_GLOBAL_INHERIT, |
1188 | bgp_peer_gr_action }, | |
1189 | /* Event-> */ /* PEER_HELPER_cmd */ /* NO_PEER_HELPER_CMD */ | |
1190 | { PEER_HELPER, bgp_peer_gr_action }, { PEER_INVALID, NULL } | |
1191 | }, | |
1192 | { | |
1193 | /* PEER_INVALID Mode */ | |
1194 | /* Event-> */ /* PEER_GR_CMD */ /* NO_PEER_GR_CMD */ | |
1195 | { PEER_INVALID, NULL }, { PEER_INVALID, NULL }, | |
2ba1fe69 | 1196 | /* Event-> */ /* PEER_DISABLE_CMD */ /* NO_PEER_DISABLE_CMD */ |
794b37d5 | 1197 | { PEER_INVALID, NULL }, { PEER_INVALID, NULL }, |
1198 | /* Event-> */ /* PEER_HELPER_cmd */ /* NO_PEER_HELPER_CMD */ | |
1199 | { PEER_INVALID, NULL }, { PEER_INVALID, NULL }, | |
1200 | }, | |
1201 | { | |
1202 | /* PEER_GLOBAL_INHERIT Mode */ | |
1203 | /* Event-> */ /* PEER_GR_CMD */ /* NO_PEER_GR_CMD */ | |
1204 | { PEER_GR, bgp_peer_gr_action }, { PEER_INVALID, NULL }, | |
2ba1fe69 | 1205 | /* Event-> */ /* PEER_DISABLE_CMD */ /* NO_PEER_DISABLE_CMD */ |
794b37d5 | 1206 | { PEER_DISABLE, bgp_peer_gr_action}, { PEER_INVALID, NULL }, |
1207 | /* Event-> */ /* PEER_HELPER_cmd */ /* NO_PEER_HELPER_CMD */ | |
1208 | { PEER_HELPER, bgp_peer_gr_action }, { PEER_INVALID, NULL } | |
1209 | } | |
1210 | }; | |
1211 | memcpy(&peer->PEER_GR_FSM, local_Peer_GR_FSM, | |
1212 | sizeof(local_Peer_GR_FSM)); | |
1213 | peer->peer_gr_present_state = PEER_GLOBAL_INHERIT; | |
1214 | bgp_peer_move_to_gr_mode(peer, PEER_GLOBAL_INHERIT); | |
1215 | ||
1216 | return BGP_GR_SUCCESS; | |
1217 | } | |
1ff9a340 | 1218 | |
200df115 | 1219 | /* Allocate new peer object, implicitely locked. */ |
d62a17ae | 1220 | struct peer *peer_new(struct bgp *bgp) |
1221 | { | |
1222 | afi_t afi; | |
1223 | safi_t safi; | |
1224 | struct peer *peer; | |
1225 | struct servent *sp; | |
1226 | ||
1227 | /* bgp argument is absolutely required */ | |
1228 | assert(bgp); | |
1229 | if (!bgp) | |
1230 | return NULL; | |
1231 | ||
1232 | /* Allocate new peer. */ | |
1233 | peer = XCALLOC(MTYPE_BGP_PEER, sizeof(struct peer)); | |
1234 | ||
1235 | /* Set default value. */ | |
1236 | peer->fd = -1; | |
1237 | peer->v_start = BGP_INIT_START_TIMER; | |
5d5393b9 | 1238 | peer->v_connect = bgp->default_connect_retry; |
d62a17ae | 1239 | peer->status = Idle; |
1240 | peer->ostatus = Idle; | |
1241 | peer->cur_event = peer->last_event = peer->last_major_event = 0; | |
92375c91 | 1242 | peer->bgp = bgp_lock(bgp); |
d62a17ae | 1243 | peer = peer_lock(peer); /* initial reference */ |
d62a17ae | 1244 | peer->password = NULL; |
1245 | ||
27c05d4d | 1246 | /* Set default flags. */ |
05c7a1cc | 1247 | FOREACH_AFI_SAFI (afi, safi) { |
d8a9922d DS |
1248 | SET_FLAG(peer->af_flags[afi][safi], PEER_FLAG_SEND_COMMUNITY); |
1249 | SET_FLAG(peer->af_flags[afi][safi], | |
1250 | PEER_FLAG_SEND_EXT_COMMUNITY); | |
1251 | SET_FLAG(peer->af_flags[afi][safi], | |
1252 | PEER_FLAG_SEND_LARGE_COMMUNITY); | |
1253 | ||
1254 | SET_FLAG(peer->af_flags_invert[afi][safi], | |
1255 | PEER_FLAG_SEND_COMMUNITY); | |
1256 | SET_FLAG(peer->af_flags_invert[afi][safi], | |
1257 | PEER_FLAG_SEND_EXT_COMMUNITY); | |
1258 | SET_FLAG(peer->af_flags_invert[afi][safi], | |
1259 | PEER_FLAG_SEND_LARGE_COMMUNITY); | |
dcc68b5e | 1260 | peer->addpath_type[afi][safi] = BGP_ADDPATH_NONE; |
05c7a1cc | 1261 | } |
637315fc MK |
1262 | |
1263 | /* set nexthop-unchanged for l2vpn evpn by default */ | |
1264 | SET_FLAG(peer->af_flags[AFI_L2VPN][SAFI_EVPN], | |
1265 | PEER_FLAG_NEXTHOP_UNCHANGED); | |
1266 | ||
d62a17ae | 1267 | SET_FLAG(peer->sflags, PEER_STATUS_CAPABILITY_OPEN); |
718e3744 | 1268 | |
794b37d5 | 1269 | /* Initialize per peer bgp GR FSM */ |
1270 | bgp_peer_gr_init(peer); | |
1271 | ||
d62a17ae | 1272 | /* Create buffers. */ |
424ab01d | 1273 | peer->ibuf = stream_fifo_new(); |
d62a17ae | 1274 | peer->obuf = stream_fifo_new(); |
424ab01d | 1275 | pthread_mutex_init(&peer->io_mtx, NULL); |
0a91ff55 | 1276 | |
424ab01d | 1277 | /* We use a larger buffer for peer->obuf_work in the event that: |
d62a17ae | 1278 | * - We RX a BGP_UPDATE where the attributes alone are just |
1279 | * under BGP_MAX_PACKET_SIZE | |
1280 | * - The user configures an outbound route-map that does many as-path | |
09f6d019 QY |
1281 | * prepends or adds many communities. At most they can have |
1282 | * CMD_ARGC_MAX args in a route-map so there is a finite limit on how | |
1283 | * large they can make the attributes. | |
d62a17ae | 1284 | * |
1285 | * Having a buffer with BGP_MAX_PACKET_SIZE_OVERFLOW allows us to avoid | |
09f6d019 QY |
1286 | * bounds checking for every single attribute as we construct an |
1287 | * UPDATE. | |
d62a17ae | 1288 | */ |
424ab01d | 1289 | peer->obuf_work = |
d62a17ae | 1290 | stream_new(BGP_MAX_PACKET_SIZE + BGP_MAX_PACKET_SIZE_OVERFLOW); |
74ffbfe6 QY |
1291 | peer->ibuf_work = |
1292 | ringbuf_new(BGP_MAX_PACKET_SIZE * BGP_READ_PACKET_MAX); | |
1293 | ||
d62a17ae | 1294 | peer->scratch = stream_new(BGP_MAX_PACKET_SIZE); |
718e3744 | 1295 | |
d62a17ae | 1296 | bgp_sync_init(peer); |
718e3744 | 1297 | |
d62a17ae | 1298 | /* Get service port number. */ |
1299 | sp = getservbyname("bgp", "tcp"); | |
1300 | peer->port = (sp == NULL) ? BGP_PORT_DEFAULT : ntohs(sp->s_port); | |
718e3744 | 1301 | |
d62a17ae | 1302 | QOBJ_REG(peer, peer); |
1303 | return peer; | |
718e3744 | 1304 | } |
1305 | ||
1ff9a340 DS |
1306 | /* |
1307 | * This function is invoked when a duplicate peer structure associated with | |
1308 | * a neighbor is being deleted. If this about-to-be-deleted structure is | |
1309 | * the one with all the config, then we have to copy over the info. | |
1310 | */ | |
d62a17ae | 1311 | void peer_xfer_config(struct peer *peer_dst, struct peer *peer_src) |
1312 | { | |
1313 | struct peer_af *paf; | |
1314 | afi_t afi; | |
1315 | safi_t safi; | |
1316 | int afidx; | |
1317 | ||
1318 | assert(peer_src); | |
1319 | assert(peer_dst); | |
1320 | ||
1321 | /* The following function is used by both peer group config copy to | |
1322 | * individual peer and when we transfer config | |
1323 | */ | |
1324 | if (peer_src->change_local_as) | |
1325 | peer_dst->change_local_as = peer_src->change_local_as; | |
1326 | ||
1327 | /* peer flags apply */ | |
1328 | peer_dst->flags = peer_src->flags; | |
1329 | peer_dst->cap = peer_src->cap; | |
d62a17ae | 1330 | |
d7b3cda6 | 1331 | peer_dst->peer_gr_present_state = peer_src->peer_gr_present_state; |
1332 | peer_dst->peer_gr_new_status_flag = peer_src->peer_gr_new_status_flag; | |
1333 | ||
d62a17ae | 1334 | peer_dst->local_as = peer_src->local_as; |
d62a17ae | 1335 | peer_dst->port = peer_src->port; |
82417ac2 | 1336 | (void)peer_sort(peer_dst); |
d62a17ae | 1337 | peer_dst->rmap_type = peer_src->rmap_type; |
1338 | ||
1339 | /* Timers */ | |
1340 | peer_dst->holdtime = peer_src->holdtime; | |
1341 | peer_dst->keepalive = peer_src->keepalive; | |
1342 | peer_dst->connect = peer_src->connect; | |
1343 | peer_dst->v_holdtime = peer_src->v_holdtime; | |
1344 | peer_dst->v_keepalive = peer_src->v_keepalive; | |
1345 | peer_dst->routeadv = peer_src->routeadv; | |
1346 | peer_dst->v_routeadv = peer_src->v_routeadv; | |
1347 | ||
1348 | /* password apply */ | |
1349 | if (peer_src->password && !peer_dst->password) | |
1350 | peer_dst->password = | |
1351 | XSTRDUP(MTYPE_PEER_PASSWORD, peer_src->password); | |
1352 | ||
05c7a1cc QY |
1353 | FOREACH_AFI_SAFI (afi, safi) { |
1354 | peer_dst->afc[afi][safi] = peer_src->afc[afi][safi]; | |
1355 | peer_dst->af_flags[afi][safi] = peer_src->af_flags[afi][safi]; | |
1356 | peer_dst->allowas_in[afi][safi] = | |
1357 | peer_src->allowas_in[afi][safi]; | |
1358 | peer_dst->weight[afi][safi] = peer_src->weight[afi][safi]; | |
dcc68b5e MS |
1359 | peer_dst->addpath_type[afi][safi] = |
1360 | peer_src->addpath_type[afi][safi]; | |
05c7a1cc | 1361 | } |
d62a17ae | 1362 | |
1363 | for (afidx = BGP_AF_START; afidx < BGP_AF_MAX; afidx++) { | |
1364 | paf = peer_src->peer_af_array[afidx]; | |
1365 | if (paf != NULL) | |
1366 | peer_af_create(peer_dst, paf->afi, paf->safi); | |
1367 | } | |
1368 | ||
1369 | /* update-source apply */ | |
1370 | if (peer_src->update_source) { | |
1371 | if (peer_dst->update_source) | |
1372 | sockunion_free(peer_dst->update_source); | |
1373 | if (peer_dst->update_if) { | |
1374 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer_dst->update_if); | |
1375 | peer_dst->update_if = NULL; | |
1376 | } | |
1377 | peer_dst->update_source = | |
1378 | sockunion_dup(peer_src->update_source); | |
1379 | } else if (peer_src->update_if) { | |
0a22ddfb | 1380 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer_dst->update_if); |
d62a17ae | 1381 | if (peer_dst->update_source) { |
1382 | sockunion_free(peer_dst->update_source); | |
1383 | peer_dst->update_source = NULL; | |
1384 | } | |
1385 | peer_dst->update_if = | |
1386 | XSTRDUP(MTYPE_PEER_UPDATE_SOURCE, peer_src->update_if); | |
1387 | } | |
1388 | ||
1389 | if (peer_src->ifname) { | |
0a22ddfb | 1390 | XFREE(MTYPE_BGP_PEER_IFNAME, peer_dst->ifname); |
d62a17ae | 1391 | |
1392 | peer_dst->ifname = | |
1393 | XSTRDUP(MTYPE_BGP_PEER_IFNAME, peer_src->ifname); | |
1394 | } | |
1395 | } | |
1396 | ||
1397 | static int bgp_peer_conf_if_to_su_update_v4(struct peer *peer, | |
1398 | struct interface *ifp) | |
1399 | { | |
1400 | struct connected *ifc; | |
1401 | struct prefix p; | |
d7c0a89a | 1402 | uint32_t addr; |
d62a17ae | 1403 | struct listnode *node; |
1404 | ||
1405 | /* If our IPv4 address on the interface is /30 or /31, we can derive the | |
1406 | * IPv4 address of the other end. | |
1407 | */ | |
1408 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, ifc)) { | |
1409 | if (ifc->address && (ifc->address->family == AF_INET)) { | |
1410 | PREFIX_COPY_IPV4(&p, CONNECTED_PREFIX(ifc)); | |
1411 | if (p.prefixlen == 30) { | |
1412 | peer->su.sa.sa_family = AF_INET; | |
1413 | addr = ntohl(p.u.prefix4.s_addr); | |
1414 | if (addr % 4 == 1) | |
1415 | peer->su.sin.sin_addr.s_addr = | |
1416 | htonl(addr + 1); | |
1417 | else if (addr % 4 == 2) | |
1418 | peer->su.sin.sin_addr.s_addr = | |
1419 | htonl(addr - 1); | |
8ffedcea | 1420 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
d62a17ae | 1421 | peer->su.sin.sin_len = |
1422 | sizeof(struct sockaddr_in); | |
8ffedcea | 1423 | #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */ |
d62a17ae | 1424 | return 1; |
1425 | } else if (p.prefixlen == 31) { | |
1426 | peer->su.sa.sa_family = AF_INET; | |
1427 | addr = ntohl(p.u.prefix4.s_addr); | |
1428 | if (addr % 2 == 0) | |
1429 | peer->su.sin.sin_addr.s_addr = | |
1430 | htonl(addr + 1); | |
1431 | else | |
1432 | peer->su.sin.sin_addr.s_addr = | |
1433 | htonl(addr - 1); | |
8ffedcea | 1434 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
d62a17ae | 1435 | peer->su.sin.sin_len = |
1436 | sizeof(struct sockaddr_in); | |
8ffedcea | 1437 | #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */ |
d62a17ae | 1438 | return 1; |
1439 | } else if (bgp_debug_neighbor_events(peer)) | |
1440 | zlog_debug( | |
1441 | "%s: IPv4 interface address is not /30 or /31, v4 session not started", | |
1442 | peer->conf_if); | |
1443 | } | |
1444 | } | |
1445 | ||
1446 | return 0; | |
1447 | } | |
1448 | ||
1449 | static int bgp_peer_conf_if_to_su_update_v6(struct peer *peer, | |
1450 | struct interface *ifp) | |
1451 | { | |
1452 | struct nbr_connected *ifc_nbr; | |
1453 | ||
1454 | /* Have we learnt the peer's IPv6 link-local address? */ | |
1455 | if (ifp->nbr_connected | |
1456 | && (ifc_nbr = listnode_head(ifp->nbr_connected))) { | |
1457 | peer->su.sa.sa_family = AF_INET6; | |
1458 | memcpy(&peer->su.sin6.sin6_addr, &ifc_nbr->address->u.prefix, | |
1459 | sizeof(struct in6_addr)); | |
a80beece | 1460 | #ifdef SIN6_LEN |
d62a17ae | 1461 | peer->su.sin6.sin6_len = sizeof(struct sockaddr_in6); |
a80beece | 1462 | #endif |
d62a17ae | 1463 | peer->su.sin6.sin6_scope_id = ifp->ifindex; |
1464 | return 1; | |
1465 | } | |
8ffedcea | 1466 | |
d62a17ae | 1467 | return 0; |
89ca90fa | 1468 | } |
1469 | ||
1470 | /* | |
1471 | * Set or reset the peer address socketunion structure based on the | |
1472 | * learnt/derived peer address. If the address has changed, update the | |
1473 | * password on the listen socket, if needed. | |
1474 | */ | |
d62a17ae | 1475 | void bgp_peer_conf_if_to_su_update(struct peer *peer) |
1476 | { | |
1477 | struct interface *ifp; | |
1478 | int prev_family; | |
1479 | int peer_addr_updated = 0; | |
1480 | ||
1481 | if (!peer->conf_if) | |
1482 | return; | |
1483 | ||
d12b745c DS |
1484 | /* |
1485 | * Our peer structure is stored in the bgp->peerhash | |
1486 | * release it before we modify anything. | |
1487 | */ | |
1488 | hash_release(peer->bgp->peerhash, peer); | |
1489 | ||
d62a17ae | 1490 | prev_family = peer->su.sa.sa_family; |
a36898e7 | 1491 | if ((ifp = if_lookup_by_name(peer->conf_if, peer->bgp->vrf_id))) { |
d62a17ae | 1492 | peer->ifp = ifp; |
1493 | /* If BGP unnumbered is not "v6only", we first see if we can | |
1494 | * derive the | |
1495 | * peer's IPv4 address. | |
1496 | */ | |
1497 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_IFPEER_V6ONLY)) | |
1498 | peer_addr_updated = | |
1499 | bgp_peer_conf_if_to_su_update_v4(peer, ifp); | |
1500 | ||
1501 | /* If "v6only" or we can't derive peer's IPv4 address, see if | |
1502 | * we've | |
1503 | * learnt the peer's IPv6 link-local address. This is from the | |
1504 | * source | |
1505 | * IPv6 address in router advertisement. | |
1506 | */ | |
1507 | if (!peer_addr_updated) | |
1508 | peer_addr_updated = | |
1509 | bgp_peer_conf_if_to_su_update_v6(peer, ifp); | |
1510 | } | |
1511 | /* If we could derive the peer address, we may need to install the | |
1512 | * password | |
1513 | * configured for the peer, if any, on the listen socket. Otherwise, | |
1514 | * mark | |
1515 | * that peer's address is not available and uninstall the password, if | |
1516 | * needed. | |
1517 | */ | |
1518 | if (peer_addr_updated) { | |
a14810f4 PM |
1519 | if (CHECK_FLAG(peer->flags, PEER_FLAG_PASSWORD) |
1520 | && prev_family == AF_UNSPEC) | |
d62a17ae | 1521 | bgp_md5_set(peer); |
1522 | } else { | |
a14810f4 PM |
1523 | if (CHECK_FLAG(peer->flags, PEER_FLAG_PASSWORD) |
1524 | && prev_family != AF_UNSPEC) | |
d62a17ae | 1525 | bgp_md5_unset(peer); |
1526 | peer->su.sa.sa_family = AF_UNSPEC; | |
1527 | memset(&peer->su.sin6.sin6_addr, 0, sizeof(struct in6_addr)); | |
1528 | } | |
1529 | ||
d12b745c DS |
1530 | /* |
1531 | * Since our su changed we need to del/add peer to the peerhash | |
1532 | */ | |
d62a17ae | 1533 | hash_get(peer->bgp->peerhash, peer, hash_alloc_intern); |
a80beece DS |
1534 | } |
1535 | ||
318cac96 DW |
1536 | static void bgp_recalculate_afi_safi_bestpaths(struct bgp *bgp, afi_t afi, |
1537 | safi_t safi) | |
1538 | { | |
1539 | struct bgp_node *rn, *nrn; | |
67009e22 | 1540 | struct bgp_table *table; |
318cac96 DW |
1541 | |
1542 | for (rn = bgp_table_top(bgp->rib[afi][safi]); rn; | |
1543 | rn = bgp_route_next(rn)) { | |
67009e22 DS |
1544 | table = bgp_node_get_bgp_table_info(rn); |
1545 | if (table != NULL) { | |
318cac96 DW |
1546 | /* Special handling for 2-level routing |
1547 | * tables. */ | |
a4d82a8a | 1548 | if (safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP |
318cac96 | 1549 | || safi == SAFI_EVPN) { |
67009e22 | 1550 | for (nrn = bgp_table_top(table); |
a4d82a8a PZ |
1551 | nrn; nrn = bgp_route_next(nrn)) |
1552 | bgp_process(bgp, nrn, afi, safi); | |
318cac96 DW |
1553 | } else |
1554 | bgp_process(bgp, rn, afi, safi); | |
1555 | } | |
1556 | } | |
1557 | } | |
1558 | ||
06370dac DW |
1559 | /* Force a bestpath recalculation for all prefixes. This is used |
1560 | * when 'bgp bestpath' commands are entered. | |
1561 | */ | |
d62a17ae | 1562 | void bgp_recalculate_all_bestpaths(struct bgp *bgp) |
1563 | { | |
1564 | afi_t afi; | |
1565 | safi_t safi; | |
d62a17ae | 1566 | |
05c7a1cc QY |
1567 | FOREACH_AFI_SAFI (afi, safi) { |
1568 | bgp_recalculate_afi_safi_bestpaths(bgp, afi, safi); | |
d62a17ae | 1569 | } |
06370dac DW |
1570 | } |
1571 | ||
19bd3dff DS |
1572 | /* |
1573 | * Create new BGP peer. | |
1574 | * | |
1575 | * conf_if and su are mutually exclusive if configuring from the cli. | |
1576 | * If we are handing a doppelganger, then we *must* pass in both | |
1577 | * the original peer's su and conf_if, so that we can appropriately | |
1578 | * track the bgp->peerhash( ie we don't want to remove the current | |
1579 | * one from the config ). | |
1580 | */ | |
d62a17ae | 1581 | struct peer *peer_create(union sockunion *su, const char *conf_if, |
1582 | struct bgp *bgp, as_t local_as, as_t remote_as, | |
1583 | int as_type, afi_t afi, safi_t safi, | |
1584 | struct peer_group *group) | |
1585 | { | |
1586 | int active; | |
1587 | struct peer *peer; | |
1588 | char buf[SU_ADDRSTRLEN]; | |
1589 | ||
1590 | peer = peer_new(bgp); | |
1591 | if (conf_if) { | |
1592 | peer->conf_if = XSTRDUP(MTYPE_PEER_CONF_IF, conf_if); | |
19bd3dff DS |
1593 | if (su) |
1594 | peer->su = *su; | |
1595 | else | |
1596 | bgp_peer_conf_if_to_su_update(peer); | |
0a22ddfb | 1597 | XFREE(MTYPE_BGP_PEER_HOST, peer->host); |
d62a17ae | 1598 | peer->host = XSTRDUP(MTYPE_BGP_PEER_HOST, conf_if); |
1599 | } else if (su) { | |
1600 | peer->su = *su; | |
1601 | sockunion2str(su, buf, SU_ADDRSTRLEN); | |
0a22ddfb | 1602 | XFREE(MTYPE_BGP_PEER_HOST, peer->host); |
d62a17ae | 1603 | peer->host = XSTRDUP(MTYPE_BGP_PEER_HOST, buf); |
1604 | } | |
1605 | peer->local_as = local_as; | |
1606 | peer->as = remote_as; | |
1607 | peer->as_type = as_type; | |
1608 | peer->local_id = bgp->router_id; | |
1609 | peer->v_holdtime = bgp->default_holdtime; | |
1610 | peer->v_keepalive = bgp->default_keepalive; | |
b90a8e13 PM |
1611 | peer->v_routeadv = (peer_sort(peer) == BGP_PEER_IBGP) |
1612 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
1613 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 1614 | |
1615 | peer = peer_lock(peer); /* bgp peer list reference */ | |
1616 | peer->group = group; | |
1617 | listnode_add_sort(bgp->peer, peer); | |
1618 | hash_get(bgp->peerhash, peer, hash_alloc_intern); | |
1619 | ||
4961a5a2 | 1620 | /* Adjust update-group coalesce timer heuristics for # peers. */ |
37a333fe | 1621 | if (bgp->heuristic_coalesce) { |
14b8641a QY |
1622 | long ct = BGP_DEFAULT_SUBGROUP_COALESCE_TIME |
1623 | + (bgp->peer->count | |
1624 | * BGP_PEER_ADJUST_SUBGROUP_COALESCE_TIME); | |
1625 | bgp->coalesce_time = MIN(BGP_MAX_SUBGROUP_COALESCE_TIME, ct); | |
1626 | } | |
4961a5a2 | 1627 | |
d62a17ae | 1628 | active = peer_active(peer); |
05912a17 DD |
1629 | if (!active) { |
1630 | if (peer->su.sa.sa_family == AF_UNSPEC) | |
1631 | peer->last_reset = PEER_DOWN_NBR_ADDR; | |
1632 | else | |
1633 | peer->last_reset = PEER_DOWN_NOAFI_ACTIVATED; | |
1634 | } | |
d62a17ae | 1635 | |
1636 | /* Last read and reset time set */ | |
1637 | peer->readtime = peer->resettime = bgp_clock(); | |
1638 | ||
1639 | /* Default TTL set. */ | |
a0903cd2 | 1640 | peer->ttl = (peer->sort == BGP_PEER_IBGP) ? MAXTTL : BGP_DEFAULT_TTL; |
d62a17ae | 1641 | |
1642 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); | |
1643 | ||
1644 | if (afi && safi) { | |
1645 | peer->afc[afi][safi] = 1; | |
1646 | peer_af_create(peer, afi, safi); | |
1647 | } | |
1648 | ||
f26845f9 QY |
1649 | /* auto shutdown if configured */ |
1650 | if (bgp->autoshutdown) | |
1651 | peer_flag_set(peer, PEER_FLAG_SHUTDOWN); | |
d62a17ae | 1652 | /* Set up peer's events and timers. */ |
f26845f9 | 1653 | else if (!active && peer_active(peer)) |
d62a17ae | 1654 | bgp_timer_set(peer); |
1655 | ||
794b37d5 | 1656 | bgp_peer_gr_flags_update(peer); |
dc95985f | 1657 | BGP_GR_ROUTER_DETECT_AND_SEND_CAPABILITY_TO_ZEBRA( |
1658 | bgp, | |
1659 | bgp->peer); | |
1660 | ||
d62a17ae | 1661 | return peer; |
718e3744 | 1662 | } |
1663 | ||
dd793e4a | 1664 | /* Make accept BGP peer. This function is only called from the test code */ |
d62a17ae | 1665 | struct peer *peer_create_accept(struct bgp *bgp) |
eb821189 | 1666 | { |
d62a17ae | 1667 | struct peer *peer; |
eb821189 | 1668 | |
d62a17ae | 1669 | peer = peer_new(bgp); |
1ff9a340 | 1670 | |
d62a17ae | 1671 | peer = peer_lock(peer); /* bgp peer list reference */ |
1672 | listnode_add_sort(bgp->peer, peer); | |
eb821189 | 1673 | |
d62a17ae | 1674 | return peer; |
eb821189 | 1675 | } |
1676 | ||
318cac96 DW |
1677 | /* |
1678 | * Return true if we have a peer configured to use this afi/safi | |
1679 | */ | |
1680 | int bgp_afi_safi_peer_exists(struct bgp *bgp, afi_t afi, safi_t safi) | |
1681 | { | |
1682 | struct listnode *node; | |
1683 | struct peer *peer; | |
1684 | ||
1685 | for (ALL_LIST_ELEMENTS_RO(bgp->peer, node, peer)) { | |
1686 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE)) | |
1687 | continue; | |
1688 | ||
1689 | if (peer->afc[afi][safi]) | |
1690 | return 1; | |
1691 | } | |
1692 | ||
1693 | return 0; | |
1694 | } | |
1695 | ||
718e3744 | 1696 | /* Change peer's AS number. */ |
d62a17ae | 1697 | void peer_as_change(struct peer *peer, as_t as, int as_specified) |
1698 | { | |
1699 | bgp_peer_sort_t type; | |
d62a17ae | 1700 | |
1701 | /* Stop peer. */ | |
1702 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
1703 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
1704 | peer->last_reset = PEER_DOWN_REMOTE_AS_CHANGE; | |
1705 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
1706 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
1707 | } else | |
1708 | bgp_session_reset(peer); | |
1709 | } | |
1710 | type = peer_sort(peer); | |
1711 | peer->as = as; | |
1712 | peer->as_type = as_specified; | |
1713 | ||
1714 | if (bgp_config_check(peer->bgp, BGP_CONFIG_CONFEDERATION) | |
1715 | && !bgp_confederation_peers_check(peer->bgp, as) | |
1716 | && peer->bgp->as != as) | |
1717 | peer->local_as = peer->bgp->confed_id; | |
1718 | else | |
1719 | peer->local_as = peer->bgp->as; | |
1720 | ||
1721 | /* Advertisement-interval reset */ | |
b90a8e13 PM |
1722 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_ROUTEADV)) { |
1723 | peer->v_routeadv = (peer_sort(peer) == BGP_PEER_IBGP) | |
1724 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
1725 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 1726 | } |
b90a8e13 | 1727 | |
d62a17ae | 1728 | /* TTL reset */ |
1729 | if (peer_sort(peer) == BGP_PEER_IBGP) | |
1730 | peer->ttl = MAXTTL; | |
1731 | else if (type == BGP_PEER_IBGP) | |
a0903cd2 | 1732 | peer->ttl = BGP_DEFAULT_TTL; |
d62a17ae | 1733 | |
1734 | /* reflector-client reset */ | |
1735 | if (peer_sort(peer) != BGP_PEER_IBGP) { | |
1736 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_UNICAST], | |
1737 | PEER_FLAG_REFLECTOR_CLIENT); | |
1738 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_MULTICAST], | |
1739 | PEER_FLAG_REFLECTOR_CLIENT); | |
1740 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_LABELED_UNICAST], | |
1741 | PEER_FLAG_REFLECTOR_CLIENT); | |
1742 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_MPLS_VPN], | |
1743 | PEER_FLAG_REFLECTOR_CLIENT); | |
1744 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_ENCAP], | |
1745 | PEER_FLAG_REFLECTOR_CLIENT); | |
7c40bf39 | 1746 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_FLOWSPEC], |
1747 | PEER_FLAG_REFLECTOR_CLIENT); | |
d62a17ae | 1748 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_UNICAST], |
1749 | PEER_FLAG_REFLECTOR_CLIENT); | |
1750 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_MULTICAST], | |
1751 | PEER_FLAG_REFLECTOR_CLIENT); | |
1752 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_LABELED_UNICAST], | |
1753 | PEER_FLAG_REFLECTOR_CLIENT); | |
1754 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_MPLS_VPN], | |
1755 | PEER_FLAG_REFLECTOR_CLIENT); | |
1756 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_ENCAP], | |
1757 | PEER_FLAG_REFLECTOR_CLIENT); | |
7c40bf39 | 1758 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_FLOWSPEC], |
1759 | PEER_FLAG_REFLECTOR_CLIENT); | |
d62a17ae | 1760 | UNSET_FLAG(peer->af_flags[AFI_L2VPN][SAFI_EVPN], |
1761 | PEER_FLAG_REFLECTOR_CLIENT); | |
1762 | } | |
1763 | ||
1764 | /* local-as reset */ | |
1765 | if (peer_sort(peer) != BGP_PEER_EBGP) { | |
1766 | peer->change_local_as = 0; | |
a14810f4 PM |
1767 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS); |
1768 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
1769 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
d62a17ae | 1770 | } |
718e3744 | 1771 | } |
1772 | ||
1773 | /* If peer does not exist, create new one. If peer already exists, | |
1774 | set AS number to the peer. */ | |
d62a17ae | 1775 | int peer_remote_as(struct bgp *bgp, union sockunion *su, const char *conf_if, |
1776 | as_t *as, int as_type, afi_t afi, safi_t safi) | |
1777 | { | |
1778 | struct peer *peer; | |
1779 | as_t local_as; | |
1780 | ||
1781 | if (conf_if) | |
1782 | peer = peer_lookup_by_conf_if(bgp, conf_if); | |
1783 | else | |
1784 | peer = peer_lookup(bgp, su); | |
1785 | ||
1786 | if (peer) { | |
1787 | /* Not allowed for a dynamic peer. */ | |
1788 | if (peer_dynamic_neighbor(peer)) { | |
1789 | *as = peer->as; | |
1790 | return BGP_ERR_INVALID_FOR_DYNAMIC_PEER; | |
1791 | } | |
718e3744 | 1792 | |
d62a17ae | 1793 | /* When this peer is a member of peer-group. */ |
1794 | if (peer->group) { | |
faa16034 DS |
1795 | /* peer-group already has AS number/internal/external */ |
1796 | if (peer->group->conf->as | |
1797 | || peer->group->conf->as_type) { | |
d62a17ae | 1798 | /* Return peer group's AS number. */ |
1799 | *as = peer->group->conf->as; | |
1800 | return BGP_ERR_PEER_GROUP_MEMBER; | |
1801 | } | |
faa16034 DS |
1802 | |
1803 | bgp_peer_sort_t peer_sort_type = | |
1804 | peer_sort(peer->group->conf); | |
1805 | ||
1806 | /* Explicit AS numbers used, compare AS numbers */ | |
1807 | if (as_type == AS_SPECIFIED) { | |
1808 | if (((peer_sort_type == BGP_PEER_IBGP) | |
1809 | && (bgp->as != *as)) | |
1810 | || ((peer_sort_type == BGP_PEER_EBGP) | |
1811 | && (bgp->as == *as))) { | |
d62a17ae | 1812 | *as = peer->as; |
1813 | return BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT; | |
1814 | } | |
1815 | } else { | |
faa16034 DS |
1816 | /* internal/external used, compare as-types */ |
1817 | if (((peer_sort_type == BGP_PEER_IBGP) | |
1818 | && (as_type != AS_INTERNAL)) | |
1819 | || ((peer_sort_type == BGP_PEER_EBGP) | |
1820 | && (as_type != AS_EXTERNAL))) { | |
d62a17ae | 1821 | *as = peer->as; |
1822 | return BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT; | |
1823 | } | |
1824 | } | |
1825 | } | |
93406d87 | 1826 | |
d62a17ae | 1827 | /* Existing peer's AS number change. */ |
1828 | if (((peer->as_type == AS_SPECIFIED) && peer->as != *as) | |
1829 | || (peer->as_type != as_type)) | |
1830 | peer_as_change(peer, *as, as_type); | |
1831 | } else { | |
1832 | if (conf_if) | |
1833 | return BGP_ERR_NO_INTERFACE_CONFIG; | |
1834 | ||
1835 | /* If the peer is not part of our confederation, and its not an | |
1836 | iBGP peer then spoof the source AS */ | |
1837 | if (bgp_config_check(bgp, BGP_CONFIG_CONFEDERATION) | |
1838 | && !bgp_confederation_peers_check(bgp, *as) | |
1839 | && bgp->as != *as) | |
1840 | local_as = bgp->confed_id; | |
1841 | else | |
1842 | local_as = bgp->as; | |
1843 | ||
1844 | /* If this is IPv4 unicast configuration and "no bgp default | |
1845 | ipv4-unicast" is specified. */ | |
1846 | ||
1847 | if (bgp_flag_check(bgp, BGP_FLAG_NO_DEFAULT_IPV4) | |
1848 | && afi == AFI_IP && safi == SAFI_UNICAST) | |
1849 | peer_create(su, conf_if, bgp, local_as, *as, as_type, 0, | |
1850 | 0, NULL); | |
1851 | else | |
1852 | peer_create(su, conf_if, bgp, local_as, *as, as_type, | |
1853 | afi, safi, NULL); | |
1854 | } | |
718e3744 | 1855 | |
d62a17ae | 1856 | return 0; |
1857 | } | |
718e3744 | 1858 | |
9790f44f DS |
1859 | static void peer_group2peer_config_copy_af(struct peer_group *group, |
1860 | struct peer *peer, afi_t afi, | |
1861 | safi_t safi) | |
1862 | { | |
1863 | int in = FILTER_IN; | |
1864 | int out = FILTER_OUT; | |
4c391142 | 1865 | uint32_t flags_tmp; |
e7103a96 PM |
1866 | uint32_t pflags_ovrd; |
1867 | uint8_t *pfilter_ovrd; | |
9790f44f | 1868 | struct peer *conf; |
9790f44f DS |
1869 | |
1870 | conf = group->conf; | |
e7103a96 PM |
1871 | pflags_ovrd = peer->af_flags_override[afi][safi]; |
1872 | pfilter_ovrd = &peer->filter_override[afi][safi][in]; | |
9790f44f DS |
1873 | |
1874 | /* peer af_flags apply */ | |
4c391142 PM |
1875 | flags_tmp = conf->af_flags[afi][safi] & ~pflags_ovrd; |
1876 | flags_tmp ^= conf->af_flags_invert[afi][safi] | |
1877 | ^ peer->af_flags_invert[afi][safi]; | |
1878 | flags_tmp &= ~pflags_ovrd; | |
1879 | ||
1880 | UNSET_FLAG(peer->af_flags[afi][safi], ~pflags_ovrd); | |
1881 | SET_FLAG(peer->af_flags[afi][safi], flags_tmp); | |
1882 | SET_FLAG(peer->af_flags_invert[afi][safi], | |
1883 | conf->af_flags_invert[afi][safi]); | |
9790f44f DS |
1884 | |
1885 | /* maximum-prefix */ | |
e7103a96 PM |
1886 | if (!CHECK_FLAG(pflags_ovrd, PEER_FLAG_MAX_PREFIX)) { |
1887 | PEER_ATTR_INHERIT(peer, group, pmax[afi][safi]); | |
1888 | PEER_ATTR_INHERIT(peer, group, pmax_threshold[afi][safi]); | |
1889 | PEER_ATTR_INHERIT(peer, group, pmax_restart[afi][safi]); | |
1890 | } | |
9790f44f DS |
1891 | |
1892 | /* allowas-in */ | |
e7103a96 PM |
1893 | if (!CHECK_FLAG(pflags_ovrd, PEER_FLAG_ALLOWAS_IN)) |
1894 | PEER_ATTR_INHERIT(peer, group, allowas_in[afi][safi]); | |
9790f44f DS |
1895 | |
1896 | /* weight */ | |
e7103a96 PM |
1897 | if (!CHECK_FLAG(pflags_ovrd, PEER_FLAG_WEIGHT)) |
1898 | PEER_ATTR_INHERIT(peer, group, weight[afi][safi]); | |
9790f44f DS |
1899 | |
1900 | /* default-originate route-map */ | |
e7103a96 PM |
1901 | if (!CHECK_FLAG(pflags_ovrd, PEER_FLAG_DEFAULT_ORIGINATE)) { |
1902 | PEER_STR_ATTR_INHERIT(peer, group, default_rmap[afi][safi].name, | |
1903 | MTYPE_ROUTE_MAP_NAME); | |
1904 | PEER_ATTR_INHERIT(peer, group, default_rmap[afi][safi].map); | |
9790f44f DS |
1905 | } |
1906 | ||
1907 | /* inbound filter apply */ | |
e7103a96 PM |
1908 | if (!CHECK_FLAG(pfilter_ovrd[in], PEER_FT_DISTRIBUTE_LIST)) { |
1909 | PEER_STR_ATTR_INHERIT(peer, group, | |
1910 | filter[afi][safi].dlist[in].name, | |
1911 | MTYPE_BGP_FILTER_NAME); | |
1912 | PEER_ATTR_INHERIT(peer, group, | |
1913 | filter[afi][safi].dlist[in].alist); | |
9790f44f DS |
1914 | } |
1915 | ||
e7103a96 PM |
1916 | if (!CHECK_FLAG(pfilter_ovrd[in], PEER_FT_PREFIX_LIST)) { |
1917 | PEER_STR_ATTR_INHERIT(peer, group, | |
1918 | filter[afi][safi].plist[in].name, | |
1919 | MTYPE_BGP_FILTER_NAME); | |
1920 | PEER_ATTR_INHERIT(peer, group, | |
1921 | filter[afi][safi].plist[in].plist); | |
9790f44f DS |
1922 | } |
1923 | ||
e7103a96 PM |
1924 | if (!CHECK_FLAG(pfilter_ovrd[in], PEER_FT_FILTER_LIST)) { |
1925 | PEER_STR_ATTR_INHERIT(peer, group, | |
1926 | filter[afi][safi].aslist[in].name, | |
1927 | MTYPE_BGP_FILTER_NAME); | |
1928 | PEER_ATTR_INHERIT(peer, group, | |
1929 | filter[afi][safi].aslist[in].aslist); | |
9790f44f DS |
1930 | } |
1931 | ||
e7103a96 PM |
1932 | if (!CHECK_FLAG(pfilter_ovrd[RMAP_IN], PEER_FT_ROUTE_MAP)) { |
1933 | PEER_STR_ATTR_INHERIT(peer, group, | |
1934 | filter[afi][safi].map[in].name, | |
1935 | MTYPE_BGP_FILTER_NAME); | |
1936 | PEER_ATTR_INHERIT(peer, group, | |
1937 | filter[afi][safi].map[RMAP_IN].map); | |
9790f44f DS |
1938 | } |
1939 | ||
1940 | /* outbound filter apply */ | |
e7103a96 PM |
1941 | if (!CHECK_FLAG(pfilter_ovrd[out], PEER_FT_DISTRIBUTE_LIST)) { |
1942 | PEER_STR_ATTR_INHERIT(peer, group, | |
1943 | filter[afi][safi].dlist[out].name, | |
1944 | MTYPE_BGP_FILTER_NAME); | |
1945 | PEER_ATTR_INHERIT(peer, group, | |
1946 | filter[afi][safi].dlist[out].alist); | |
9790f44f DS |
1947 | } |
1948 | ||
e7103a96 PM |
1949 | if (!CHECK_FLAG(pfilter_ovrd[out], PEER_FT_PREFIX_LIST)) { |
1950 | PEER_STR_ATTR_INHERIT(peer, group, | |
1951 | filter[afi][safi].plist[out].name, | |
1952 | MTYPE_BGP_FILTER_NAME); | |
1953 | PEER_ATTR_INHERIT(peer, group, | |
1954 | filter[afi][safi].plist[out].plist); | |
9790f44f DS |
1955 | } |
1956 | ||
e7103a96 PM |
1957 | if (!CHECK_FLAG(pfilter_ovrd[out], PEER_FT_FILTER_LIST)) { |
1958 | PEER_STR_ATTR_INHERIT(peer, group, | |
1959 | filter[afi][safi].aslist[out].name, | |
1960 | MTYPE_BGP_FILTER_NAME); | |
1961 | PEER_ATTR_INHERIT(peer, group, | |
1962 | filter[afi][safi].aslist[out].aslist); | |
1963 | } | |
1964 | ||
1965 | if (!CHECK_FLAG(pfilter_ovrd[RMAP_OUT], PEER_FT_ROUTE_MAP)) { | |
1966 | PEER_STR_ATTR_INHERIT(peer, group, | |
1967 | filter[afi][safi].map[RMAP_OUT].name, | |
1968 | MTYPE_BGP_FILTER_NAME); | |
1969 | PEER_ATTR_INHERIT(peer, group, | |
1970 | filter[afi][safi].map[RMAP_OUT].map); | |
1971 | } | |
1972 | ||
1973 | /* nondirectional filter apply */ | |
1974 | if (!CHECK_FLAG(pfilter_ovrd[0], PEER_FT_UNSUPPRESS_MAP)) { | |
1975 | PEER_STR_ATTR_INHERIT(peer, group, filter[afi][safi].usmap.name, | |
1976 | MTYPE_BGP_FILTER_NAME); | |
1977 | PEER_ATTR_INHERIT(peer, group, filter[afi][safi].usmap.map); | |
9790f44f | 1978 | } |
dcc68b5e MS |
1979 | |
1980 | if (peer->addpath_type[afi][safi] == BGP_ADDPATH_NONE) { | |
1981 | peer->addpath_type[afi][safi] = conf->addpath_type[afi][safi]; | |
1982 | bgp_addpath_type_changed(conf->bgp); | |
1983 | } | |
9790f44f DS |
1984 | } |
1985 | ||
1986 | static int peer_activate_af(struct peer *peer, afi_t afi, safi_t safi) | |
d62a17ae | 1987 | { |
1988 | int active; | |
9bf904cc | 1989 | struct peer *other; |
718e3744 | 1990 | |
d62a17ae | 1991 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
e50f7cfd | 1992 | flog_err(EC_BGP_PEER_GROUP, "%s was called for peer-group %s", |
1c50c1c0 | 1993 | __func__, peer->host); |
d62a17ae | 1994 | return 1; |
1995 | } | |
3f9c7369 | 1996 | |
d62a17ae | 1997 | /* Do not activate a peer for both SAFI_UNICAST and SAFI_LABELED_UNICAST |
1998 | */ | |
1999 | if ((safi == SAFI_UNICAST && peer->afc[afi][SAFI_LABELED_UNICAST]) | |
2000 | || (safi == SAFI_LABELED_UNICAST && peer->afc[afi][SAFI_UNICAST])) | |
2001 | return BGP_ERR_PEER_SAFI_CONFLICT; | |
2002 | ||
2003 | /* Nothing to do if we've already activated this peer */ | |
2004 | if (peer->afc[afi][safi]) | |
2005 | return 0; | |
2006 | ||
2007 | if (peer_af_create(peer, afi, safi) == NULL) | |
2008 | return 1; | |
2009 | ||
2010 | active = peer_active(peer); | |
2011 | peer->afc[afi][safi] = 1; | |
2012 | ||
9790f44f | 2013 | if (peer->group) |
a4d82a8a | 2014 | peer_group2peer_config_copy_af(peer->group, peer, afi, safi); |
9790f44f | 2015 | |
d62a17ae | 2016 | if (!active && peer_active(peer)) { |
2017 | bgp_timer_set(peer); | |
2018 | } else { | |
2019 | if (peer->status == Established) { | |
2020 | if (CHECK_FLAG(peer->cap, PEER_CAP_DYNAMIC_RCV)) { | |
2021 | peer->afc_adv[afi][safi] = 1; | |
2022 | bgp_capability_send(peer, afi, safi, | |
2023 | CAPABILITY_CODE_MP, | |
2024 | CAPABILITY_ACTION_SET); | |
2025 | if (peer->afc_recv[afi][safi]) { | |
2026 | peer->afc_nego[afi][safi] = 1; | |
2027 | bgp_announce_route(peer, afi, safi); | |
2028 | } | |
2029 | } else { | |
2030 | peer->last_reset = PEER_DOWN_AF_ACTIVATE; | |
2031 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
2032 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
2033 | } | |
2034 | } | |
64c1a9b5 DS |
2035 | if (peer->status == OpenSent || peer->status == OpenConfirm) { |
2036 | peer->last_reset = PEER_DOWN_AF_ACTIVATE; | |
2037 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
2038 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
2039 | } | |
9bf904cc DS |
2040 | /* |
2041 | * If we are turning on a AFI/SAFI locally and we've | |
2042 | * started bringing a peer up, we need to tell | |
2043 | * the other peer to restart because we might loose | |
2044 | * configuration here because when the doppelganger | |
2045 | * gets to a established state due to how | |
2046 | * we resolve we could just overwrite the afi/safi | |
2047 | * activation. | |
2048 | */ | |
2049 | other = peer->doppelganger; | |
2050 | if (other | |
2051 | && (other->status == OpenSent | |
2052 | || other->status == OpenConfirm)) { | |
2053 | other->last_reset = PEER_DOWN_AF_ACTIVATE; | |
2054 | bgp_notify_send(other, BGP_NOTIFY_CEASE, | |
2055 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
2056 | } | |
d62a17ae | 2057 | } |
04b6bdc0 | 2058 | |
d62a17ae | 2059 | return 0; |
2060 | } | |
9e08021c | 2061 | |
d62a17ae | 2062 | /* Activate the peer or peer group for specified AFI and SAFI. */ |
2063 | int peer_activate(struct peer *peer, afi_t afi, safi_t safi) | |
2064 | { | |
2065 | int ret = 0; | |
2066 | struct peer_group *group; | |
2067 | struct listnode *node, *nnode; | |
2068 | struct peer *tmp_peer; | |
318cac96 | 2069 | struct bgp *bgp; |
d62a17ae | 2070 | |
2071 | /* Nothing to do if we've already activated this peer */ | |
2072 | if (peer->afc[afi][safi]) | |
2073 | return ret; | |
2074 | ||
318cac96 DW |
2075 | bgp = peer->bgp; |
2076 | ||
d62a17ae | 2077 | /* This is a peer-group so activate all of the members of the |
2078 | * peer-group as well */ | |
2079 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
2080 | ||
2081 | /* Do not activate a peer for both SAFI_UNICAST and | |
2082 | * SAFI_LABELED_UNICAST */ | |
2083 | if ((safi == SAFI_UNICAST | |
2084 | && peer->afc[afi][SAFI_LABELED_UNICAST]) | |
2085 | || (safi == SAFI_LABELED_UNICAST | |
2086 | && peer->afc[afi][SAFI_UNICAST])) | |
2087 | return BGP_ERR_PEER_SAFI_CONFLICT; | |
2088 | ||
2089 | peer->afc[afi][safi] = 1; | |
2090 | group = peer->group; | |
2091 | ||
2092 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, tmp_peer)) { | |
9790f44f | 2093 | ret |= peer_activate_af(tmp_peer, afi, safi); |
d62a17ae | 2094 | } |
2095 | } else { | |
9790f44f | 2096 | ret |= peer_activate_af(peer, afi, safi); |
d62a17ae | 2097 | } |
718e3744 | 2098 | |
a4d82a8a PZ |
2099 | /* If this is the first peer to be activated for this |
2100 | * afi/labeled-unicast recalc bestpaths to trigger label allocation */ | |
2101 | if (safi == SAFI_LABELED_UNICAST | |
2102 | && !bgp->allocate_mpls_labels[afi][SAFI_UNICAST]) { | |
318cac96 DW |
2103 | |
2104 | if (BGP_DEBUG(zebra, ZEBRA)) | |
4cb5e18b | 2105 | zlog_debug( |
a4d82a8a | 2106 | "peer(s) are now active for labeled-unicast, allocate MPLS labels"); |
318cac96 DW |
2107 | |
2108 | bgp->allocate_mpls_labels[afi][SAFI_UNICAST] = 1; | |
2109 | bgp_recalculate_afi_safi_bestpaths(bgp, afi, SAFI_UNICAST); | |
2110 | } | |
2111 | ||
b98f7728 PG |
2112 | if (safi == SAFI_FLOWSPEC) { |
2113 | /* connect to table manager */ | |
6818e7e5 | 2114 | bgp_zebra_init_tm_connect(bgp); |
b98f7728 | 2115 | } |
d62a17ae | 2116 | return ret; |
718e3744 | 2117 | } |
6b0655a2 | 2118 | |
d62a17ae | 2119 | static int non_peergroup_deactivate_af(struct peer *peer, afi_t afi, |
2120 | safi_t safi) | |
718e3744 | 2121 | { |
d62a17ae | 2122 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
e50f7cfd | 2123 | flog_err(EC_BGP_PEER_GROUP, "%s was called for peer-group %s", |
1c50c1c0 | 2124 | __func__, peer->host); |
d62a17ae | 2125 | return 1; |
2126 | } | |
718e3744 | 2127 | |
d62a17ae | 2128 | /* Nothing to do if we've already deactivated this peer */ |
2129 | if (!peer->afc[afi][safi]) | |
2130 | return 0; | |
718e3744 | 2131 | |
d62a17ae | 2132 | /* De-activate the address family configuration. */ |
2133 | peer->afc[afi][safi] = 0; | |
718e3744 | 2134 | |
d62a17ae | 2135 | if (peer_af_delete(peer, afi, safi) != 0) { |
e50f7cfd | 2136 | flog_err(EC_BGP_PEER_DELETE, |
1c50c1c0 QY |
2137 | "couldn't delete af structure for peer %s", |
2138 | peer->host); | |
d62a17ae | 2139 | return 1; |
2140 | } | |
718e3744 | 2141 | |
d62a17ae | 2142 | if (peer->status == Established) { |
2143 | if (CHECK_FLAG(peer->cap, PEER_CAP_DYNAMIC_RCV)) { | |
2144 | peer->afc_adv[afi][safi] = 0; | |
2145 | peer->afc_nego[afi][safi] = 0; | |
2146 | ||
2147 | if (peer_active_nego(peer)) { | |
2148 | bgp_capability_send(peer, afi, safi, | |
2149 | CAPABILITY_CODE_MP, | |
2150 | CAPABILITY_ACTION_UNSET); | |
2151 | bgp_clear_route(peer, afi, safi); | |
2152 | peer->pcount[afi][safi] = 0; | |
2153 | } else { | |
2154 | peer->last_reset = PEER_DOWN_NEIGHBOR_DELETE; | |
2155 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
2156 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
2157 | } | |
2158 | } else { | |
2159 | peer->last_reset = PEER_DOWN_NEIGHBOR_DELETE; | |
2160 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
2161 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
2162 | } | |
2163 | } | |
718e3744 | 2164 | |
d62a17ae | 2165 | return 0; |
2166 | } | |
718e3744 | 2167 | |
d62a17ae | 2168 | int peer_deactivate(struct peer *peer, afi_t afi, safi_t safi) |
718e3744 | 2169 | { |
d62a17ae | 2170 | int ret = 0; |
2171 | struct peer_group *group; | |
2172 | struct peer *tmp_peer; | |
2173 | struct listnode *node, *nnode; | |
318cac96 | 2174 | struct bgp *bgp; |
718e3744 | 2175 | |
d62a17ae | 2176 | /* Nothing to do if we've already de-activated this peer */ |
2177 | if (!peer->afc[afi][safi]) | |
2178 | return ret; | |
718e3744 | 2179 | |
d62a17ae | 2180 | /* This is a peer-group so de-activate all of the members of the |
2181 | * peer-group as well */ | |
2182 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
2183 | peer->afc[afi][safi] = 0; | |
2184 | group = peer->group; | |
718e3744 | 2185 | |
d62a17ae | 2186 | if (peer_af_delete(peer, afi, safi) != 0) { |
e50f7cfd | 2187 | flog_err(EC_BGP_PEER_DELETE, |
1c50c1c0 QY |
2188 | "couldn't delete af structure for peer %s", |
2189 | peer->host); | |
d62a17ae | 2190 | } |
0299c004 | 2191 | |
d62a17ae | 2192 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, tmp_peer)) { |
2193 | ret |= non_peergroup_deactivate_af(tmp_peer, afi, safi); | |
2194 | } | |
2195 | } else { | |
2196 | ret |= non_peergroup_deactivate_af(peer, afi, safi); | |
2197 | } | |
718e3744 | 2198 | |
318cac96 DW |
2199 | bgp = peer->bgp; |
2200 | ||
a4d82a8a PZ |
2201 | /* If this is the last peer to be deactivated for this |
2202 | * afi/labeled-unicast recalc bestpaths to trigger label deallocation */ | |
2203 | if (safi == SAFI_LABELED_UNICAST | |
2204 | && bgp->allocate_mpls_labels[afi][SAFI_UNICAST] | |
2205 | && !bgp_afi_safi_peer_exists(bgp, afi, safi)) { | |
318cac96 DW |
2206 | |
2207 | if (BGP_DEBUG(zebra, ZEBRA)) | |
4cb5e18b | 2208 | zlog_debug( |
a4d82a8a | 2209 | "peer(s) are no longer active for labeled-unicast, deallocate MPLS labels"); |
318cac96 DW |
2210 | |
2211 | bgp->allocate_mpls_labels[afi][SAFI_UNICAST] = 0; | |
2212 | bgp_recalculate_afi_safi_bestpaths(bgp, afi, SAFI_UNICAST); | |
2213 | } | |
d62a17ae | 2214 | return ret; |
2215 | } | |
718e3744 | 2216 | |
d62a17ae | 2217 | int peer_afc_set(struct peer *peer, afi_t afi, safi_t safi, int enable) |
2218 | { | |
2219 | if (enable) | |
2220 | return peer_activate(peer, afi, safi); | |
2221 | else | |
2222 | return peer_deactivate(peer, afi, safi); | |
718e3744 | 2223 | } |
2224 | ||
d7b3cda6 | 2225 | void peer_nsf_stop(struct peer *peer) |
718e3744 | 2226 | { |
d62a17ae | 2227 | afi_t afi; |
2228 | safi_t safi; | |
718e3744 | 2229 | |
d62a17ae | 2230 | UNSET_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT); |
2231 | UNSET_FLAG(peer->sflags, PEER_STATUS_NSF_MODE); | |
718e3744 | 2232 | |
d62a17ae | 2233 | for (afi = AFI_IP; afi < AFI_MAX; afi++) |
a08ca0a7 | 2234 | for (safi = SAFI_UNICAST; safi <= SAFI_MPLS_VPN; safi++) |
d62a17ae | 2235 | peer->nsf[afi][safi] = 0; |
2236 | ||
2237 | if (peer->t_gr_restart) { | |
2238 | BGP_TIMER_OFF(peer->t_gr_restart); | |
2239 | if (bgp_debug_neighbor_events(peer)) | |
2240 | zlog_debug("%s graceful restart timer stopped", | |
2241 | peer->host); | |
1ff9a340 | 2242 | } |
d62a17ae | 2243 | if (peer->t_gr_stale) { |
2244 | BGP_TIMER_OFF(peer->t_gr_stale); | |
2245 | if (bgp_debug_neighbor_events(peer)) | |
2246 | zlog_debug( | |
2247 | "%s graceful restart stalepath timer stopped", | |
2248 | peer->host); | |
2249 | } | |
2250 | bgp_clear_route_all(peer); | |
2251 | } | |
718e3744 | 2252 | |
d62a17ae | 2253 | /* Delete peer from confguration. |
2254 | * | |
2255 | * The peer is moved to a dead-end "Deleted" neighbour-state, to allow | |
2256 | * it to "cool off" and refcounts to hit 0, at which state it is freed. | |
2257 | * | |
2258 | * This function /should/ take care to be idempotent, to guard against | |
2259 | * it being called multiple times through stray events that come in | |
2260 | * that happen to result in this function being called again. That | |
2261 | * said, getting here for a "Deleted" peer is a bug in the neighbour | |
2262 | * FSM. | |
2263 | */ | |
2264 | int peer_delete(struct peer *peer) | |
2265 | { | |
2266 | int i; | |
2267 | afi_t afi; | |
2268 | safi_t safi; | |
2269 | struct bgp *bgp; | |
2270 | struct bgp_filter *filter; | |
2271 | struct listnode *pn; | |
2272 | int accept_peer; | |
f14e6fdb | 2273 | |
d62a17ae | 2274 | assert(peer->status != Deleted); |
718e3744 | 2275 | |
d62a17ae | 2276 | bgp = peer->bgp; |
2277 | accept_peer = CHECK_FLAG(peer->sflags, PEER_STATUS_ACCEPT_PEER); | |
080b97f2 | 2278 | |
0a6469e5 | 2279 | bgp_keepalives_off(peer); |
424ab01d QY |
2280 | bgp_reads_off(peer); |
2281 | bgp_writes_off(peer); | |
2282 | assert(!CHECK_FLAG(peer->thread_flags, PEER_THREAD_WRITES_ON)); | |
2283 | assert(!CHECK_FLAG(peer->thread_flags, PEER_THREAD_READS_ON)); | |
0a6469e5 | 2284 | assert(!CHECK_FLAG(peer->thread_flags, PEER_THREAD_KEEPALIVES_ON)); |
424ab01d | 2285 | |
d62a17ae | 2286 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT)) |
2287 | peer_nsf_stop(peer); | |
718e3744 | 2288 | |
d62a17ae | 2289 | SET_FLAG(peer->flags, PEER_FLAG_DELETE); |
718e3744 | 2290 | |
e8ba5293 PG |
2291 | bgp_bfd_deregister_peer(peer); |
2292 | ||
d62a17ae | 2293 | /* If this peer belongs to peer group, clear up the |
2294 | relationship. */ | |
2295 | if (peer->group) { | |
2296 | if (peer_dynamic_neighbor(peer)) | |
2297 | peer_drop_dynamic_neighbor(peer); | |
718e3744 | 2298 | |
d62a17ae | 2299 | if ((pn = listnode_lookup(peer->group->peer, peer))) { |
2300 | peer = peer_unlock( | |
2301 | peer); /* group->peer list reference */ | |
2302 | list_delete_node(peer->group->peer, pn); | |
2303 | } | |
2304 | peer->group = NULL; | |
2305 | } | |
718e3744 | 2306 | |
d62a17ae | 2307 | /* Withdraw all information from routing table. We can not use |
2308 | * BGP_EVENT_ADD (peer, BGP_Stop) at here. Because the event is | |
2309 | * executed after peer structure is deleted. | |
2310 | */ | |
2311 | peer->last_reset = PEER_DOWN_NEIGHBOR_DELETE; | |
2312 | bgp_stop(peer); | |
2313 | UNSET_FLAG(peer->flags, PEER_FLAG_DELETE); | |
2314 | ||
2315 | if (peer->doppelganger) { | |
2316 | peer->doppelganger->doppelganger = NULL; | |
2317 | peer->doppelganger = NULL; | |
2318 | } | |
718e3744 | 2319 | |
d62a17ae | 2320 | UNSET_FLAG(peer->sflags, PEER_STATUS_ACCEPT_PEER); |
2321 | bgp_fsm_change_status(peer, Deleted); | |
718e3744 | 2322 | |
d62a17ae | 2323 | /* Remove from NHT */ |
2324 | if (CHECK_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE)) | |
2325 | bgp_unlink_nexthop_by_peer(peer); | |
1ff9a340 | 2326 | |
d62a17ae | 2327 | /* Password configuration */ |
a14810f4 | 2328 | if (CHECK_FLAG(peer->flags, PEER_FLAG_PASSWORD)) { |
d62a17ae | 2329 | XFREE(MTYPE_PEER_PASSWORD, peer->password); |
1ff9a340 | 2330 | |
d62a17ae | 2331 | if (!accept_peer && !BGP_PEER_SU_UNSPEC(peer) |
2332 | && !CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
2333 | bgp_md5_unset(peer); | |
1ff9a340 | 2334 | } |
718e3744 | 2335 | |
d62a17ae | 2336 | bgp_timer_set(peer); /* stops all timers for Deleted */ |
718e3744 | 2337 | |
d62a17ae | 2338 | /* Delete from all peer list. */ |
2339 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP) | |
2340 | && (pn = listnode_lookup(bgp->peer, peer))) { | |
2341 | peer_unlock(peer); /* bgp peer list reference */ | |
2342 | list_delete_node(bgp->peer, pn); | |
2343 | hash_release(bgp->peerhash, peer); | |
2344 | } | |
718e3744 | 2345 | |
d62a17ae | 2346 | /* Buffers. */ |
2347 | if (peer->ibuf) { | |
424ab01d | 2348 | stream_fifo_free(peer->ibuf); |
d62a17ae | 2349 | peer->ibuf = NULL; |
2350 | } | |
f14e6fdb | 2351 | |
d62a17ae | 2352 | if (peer->obuf) { |
2353 | stream_fifo_free(peer->obuf); | |
2354 | peer->obuf = NULL; | |
2355 | } | |
f14e6fdb | 2356 | |
424ab01d | 2357 | if (peer->ibuf_work) { |
74ffbfe6 | 2358 | ringbuf_del(peer->ibuf_work); |
424ab01d QY |
2359 | peer->ibuf_work = NULL; |
2360 | } | |
2361 | ||
2362 | if (peer->obuf_work) { | |
2363 | stream_free(peer->obuf_work); | |
2364 | peer->obuf_work = NULL; | |
d62a17ae | 2365 | } |
f14e6fdb | 2366 | |
d62a17ae | 2367 | if (peer->scratch) { |
2368 | stream_free(peer->scratch); | |
2369 | peer->scratch = NULL; | |
2370 | } | |
f14e6fdb | 2371 | |
d62a17ae | 2372 | /* Local and remote addresses. */ |
2373 | if (peer->su_local) { | |
2374 | sockunion_free(peer->su_local); | |
2375 | peer->su_local = NULL; | |
2376 | } | |
f14e6fdb | 2377 | |
d62a17ae | 2378 | if (peer->su_remote) { |
2379 | sockunion_free(peer->su_remote); | |
2380 | peer->su_remote = NULL; | |
2381 | } | |
f14e6fdb | 2382 | |
d62a17ae | 2383 | /* Free filter related memory. */ |
05c7a1cc QY |
2384 | FOREACH_AFI_SAFI (afi, safi) { |
2385 | filter = &peer->filter[afi][safi]; | |
d62a17ae | 2386 | |
05c7a1cc QY |
2387 | for (i = FILTER_IN; i < FILTER_MAX; i++) { |
2388 | if (filter->dlist[i].name) { | |
2389 | XFREE(MTYPE_BGP_FILTER_NAME, | |
2390 | filter->dlist[i].name); | |
2391 | filter->dlist[i].name = NULL; | |
d62a17ae | 2392 | } |
2393 | ||
05c7a1cc QY |
2394 | if (filter->plist[i].name) { |
2395 | XFREE(MTYPE_BGP_FILTER_NAME, | |
2396 | filter->plist[i].name); | |
2397 | filter->plist[i].name = NULL; | |
d62a17ae | 2398 | } |
2399 | ||
05c7a1cc | 2400 | if (filter->aslist[i].name) { |
d62a17ae | 2401 | XFREE(MTYPE_BGP_FILTER_NAME, |
05c7a1cc QY |
2402 | filter->aslist[i].name); |
2403 | filter->aslist[i].name = NULL; | |
d62a17ae | 2404 | } |
05c7a1cc | 2405 | } |
d62a17ae | 2406 | |
05c7a1cc QY |
2407 | for (i = RMAP_IN; i < RMAP_MAX; i++) { |
2408 | if (filter->map[i].name) { | |
2409 | XFREE(MTYPE_BGP_FILTER_NAME, | |
2410 | filter->map[i].name); | |
2411 | filter->map[i].name = NULL; | |
d62a17ae | 2412 | } |
2413 | } | |
f14e6fdb | 2414 | |
05c7a1cc QY |
2415 | if (filter->usmap.name) { |
2416 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
2417 | filter->usmap.name = NULL; | |
2418 | } | |
2419 | ||
2420 | if (peer->default_rmap[afi][safi].name) { | |
2421 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
2422 | peer->default_rmap[afi][safi].name); | |
2423 | peer->default_rmap[afi][safi].name = NULL; | |
2424 | } | |
2425 | } | |
2426 | ||
a2addae8 RW |
2427 | FOREACH_AFI_SAFI (afi, safi) |
2428 | peer_af_delete(peer, afi, safi); | |
f14e6fdb | 2429 | |
d62a17ae | 2430 | if (peer->hostname) { |
2431 | XFREE(MTYPE_BGP_PEER_HOST, peer->hostname); | |
2432 | peer->hostname = NULL; | |
2433 | } | |
f14e6fdb | 2434 | |
d62a17ae | 2435 | if (peer->domainname) { |
2436 | XFREE(MTYPE_BGP_PEER_HOST, peer->domainname); | |
2437 | peer->domainname = NULL; | |
2438 | } | |
f14e6fdb | 2439 | |
d62a17ae | 2440 | peer_unlock(peer); /* initial reference */ |
f14e6fdb | 2441 | |
d62a17ae | 2442 | return 0; |
fe7d2a48 DS |
2443 | } |
2444 | ||
d62a17ae | 2445 | static int peer_group_cmp(struct peer_group *g1, struct peer_group *g2) |
2446 | { | |
2447 | return strcmp(g1->name, g2->name); | |
6aeb9e78 DS |
2448 | } |
2449 | ||
d62a17ae | 2450 | /* Peer group cofiguration. */ |
2451 | static struct peer_group *peer_group_new(void) | |
718e3744 | 2452 | { |
9f5dc319 | 2453 | return XCALLOC(MTYPE_PEER_GROUP, sizeof(struct peer_group)); |
718e3744 | 2454 | } |
2455 | ||
d62a17ae | 2456 | static void peer_group_free(struct peer_group *group) |
718e3744 | 2457 | { |
d62a17ae | 2458 | XFREE(MTYPE_PEER_GROUP, group); |
718e3744 | 2459 | } |
2460 | ||
d62a17ae | 2461 | struct peer_group *peer_group_lookup(struct bgp *bgp, const char *name) |
718e3744 | 2462 | { |
d62a17ae | 2463 | struct peer_group *group; |
2464 | struct listnode *node, *nnode; | |
2465 | ||
2466 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
2467 | if (strcmp(group->name, name) == 0) | |
2468 | return group; | |
2469 | } | |
2470 | return NULL; | |
2471 | } | |
2472 | ||
2473 | struct peer_group *peer_group_get(struct bgp *bgp, const char *name) | |
2474 | { | |
2475 | struct peer_group *group; | |
2476 | afi_t afi; | |
2477 | ||
2478 | group = peer_group_lookup(bgp, name); | |
2479 | if (group) | |
2480 | return group; | |
2481 | ||
2482 | group = peer_group_new(); | |
2483 | group->bgp = bgp; | |
0a22ddfb | 2484 | XFREE(MTYPE_PEER_GROUP_HOST, group->name); |
d62a17ae | 2485 | group->name = XSTRDUP(MTYPE_PEER_GROUP_HOST, name); |
2486 | group->peer = list_new(); | |
2487 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
2488 | group->listen_range[afi] = list_new(); | |
2489 | group->conf = peer_new(bgp); | |
2490 | if (!bgp_flag_check(bgp, BGP_FLAG_NO_DEFAULT_IPV4)) | |
2491 | group->conf->afc[AFI_IP][SAFI_UNICAST] = 1; | |
0a22ddfb | 2492 | XFREE(MTYPE_BGP_PEER_HOST, group->conf->host); |
d62a17ae | 2493 | group->conf->host = XSTRDUP(MTYPE_BGP_PEER_HOST, name); |
2494 | group->conf->group = group; | |
2495 | group->conf->as = 0; | |
a0903cd2 | 2496 | group->conf->ttl = BGP_DEFAULT_TTL; |
d62a17ae | 2497 | group->conf->gtsm_hops = 0; |
2498 | group->conf->v_routeadv = BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 2499 | SET_FLAG(group->conf->sflags, PEER_STATUS_GROUP); |
2500 | listnode_add_sort(bgp->group, group); | |
718e3744 | 2501 | |
d62a17ae | 2502 | return group; |
718e3744 | 2503 | } |
2504 | ||
d62a17ae | 2505 | static void peer_group2peer_config_copy(struct peer_group *group, |
2506 | struct peer *peer) | |
ad4cbda1 | 2507 | { |
4c391142 | 2508 | uint32_t flags_tmp; |
d62a17ae | 2509 | struct peer *conf; |
ad4cbda1 | 2510 | |
d62a17ae | 2511 | conf = group->conf; |
ad4cbda1 | 2512 | |
d62a17ae | 2513 | /* remote-as */ |
2514 | if (conf->as) | |
2515 | peer->as = conf->as; | |
718e3744 | 2516 | |
a14810f4 PM |
2517 | /* local-as */ |
2518 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_LOCAL_AS)) | |
d62a17ae | 2519 | peer->change_local_as = conf->change_local_as; |
1758dbaa | 2520 | |
a0903cd2 DA |
2521 | /* If peer-group has configured TTL then override it */ |
2522 | if (conf->ttl != BGP_DEFAULT_TTL) | |
2523 | peer->ttl = conf->ttl; | |
518f0eb1 | 2524 | |
d62a17ae | 2525 | /* GTSM hops */ |
2526 | peer->gtsm_hops = conf->gtsm_hops; | |
ad12dde6 | 2527 | |
4c391142 PM |
2528 | /* peer flags apply */ |
2529 | flags_tmp = conf->flags & ~peer->flags_override; | |
2530 | flags_tmp ^= conf->flags_invert ^ peer->flags_invert; | |
2531 | flags_tmp &= ~peer->flags_override; | |
2532 | ||
2533 | UNSET_FLAG(peer->flags, ~peer->flags_override); | |
2534 | SET_FLAG(peer->flags, flags_tmp); | |
2535 | SET_FLAG(peer->flags_invert, conf->flags_invert); | |
ad4cbda1 | 2536 | |
d62a17ae | 2537 | /* peer timers apply */ |
b90a8e13 PM |
2538 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_TIMER)) { |
2539 | PEER_ATTR_INHERIT(peer, group, holdtime); | |
2540 | PEER_ATTR_INHERIT(peer, group, keepalive); | |
2541 | } | |
6aeb9e78 | 2542 | |
b90a8e13 PM |
2543 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_TIMER_CONNECT)) { |
2544 | PEER_ATTR_INHERIT(peer, group, connect); | |
2545 | if (CHECK_FLAG(conf->flags, PEER_FLAG_TIMER_CONNECT)) | |
2546 | peer->v_connect = conf->connect; | |
2547 | else | |
5d5393b9 | 2548 | peer->v_connect = peer->bgp->default_connect_retry; |
b90a8e13 PM |
2549 | } |
2550 | ||
2551 | /* advertisement-interval apply */ | |
2552 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_ROUTEADV)) { | |
2553 | PEER_ATTR_INHERIT(peer, group, routeadv); | |
2554 | if (CHECK_FLAG(conf->flags, PEER_FLAG_ROUTEADV)) | |
2555 | peer->v_routeadv = conf->routeadv; | |
2556 | else | |
2557 | peer->v_routeadv = (peer_sort(peer) == BGP_PEER_IBGP) | |
2558 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
2559 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
2560 | } | |
718e3744 | 2561 | |
d62a17ae | 2562 | /* password apply */ |
a14810f4 PM |
2563 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_PASSWORD)) |
2564 | PEER_STR_ATTR_INHERIT(peer, group, password, | |
2565 | MTYPE_PEER_PASSWORD); | |
718e3744 | 2566 | |
d62a17ae | 2567 | if (!BGP_PEER_SU_UNSPEC(peer)) |
2568 | bgp_md5_set(peer); | |
d4a7a753 | 2569 | |
d62a17ae | 2570 | /* update-source apply */ |
a14810f4 PM |
2571 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_UPDATE_SOURCE)) { |
2572 | if (conf->update_source) { | |
d62a17ae | 2573 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); |
a14810f4 PM |
2574 | PEER_SU_ATTR_INHERIT(peer, group, update_source); |
2575 | } else if (conf->update_if) { | |
d62a17ae | 2576 | sockunion_free(peer->update_source); |
a14810f4 PM |
2577 | PEER_STR_ATTR_INHERIT(peer, group, update_if, |
2578 | MTYPE_PEER_UPDATE_SOURCE); | |
d62a17ae | 2579 | } |
d62a17ae | 2580 | } |
cd92e548 | 2581 | |
d62a17ae | 2582 | bgp_bfd_peer_group2peer_copy(conf, peer); |
ad4cbda1 | 2583 | } |
718e3744 | 2584 | |
d62a17ae | 2585 | /* Peer group's remote AS configuration. */ |
2586 | int peer_group_remote_as(struct bgp *bgp, const char *group_name, as_t *as, | |
2587 | int as_type) | |
f14e6fdb | 2588 | { |
d62a17ae | 2589 | struct peer_group *group; |
2590 | struct peer *peer; | |
2591 | struct listnode *node, *nnode; | |
f14e6fdb | 2592 | |
d62a17ae | 2593 | group = peer_group_lookup(bgp, group_name); |
2594 | if (!group) | |
2595 | return -1; | |
f14e6fdb | 2596 | |
d62a17ae | 2597 | if ((as_type == group->conf->as_type) && (group->conf->as == *as)) |
2598 | return 0; | |
f14e6fdb | 2599 | |
f14e6fdb | 2600 | |
d62a17ae | 2601 | /* When we setup peer-group AS number all peer group member's AS |
2602 | number must be updated to same number. */ | |
2603 | peer_as_change(group->conf, *as, as_type); | |
f14e6fdb | 2604 | |
d62a17ae | 2605 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { |
2606 | if (((peer->as_type == AS_SPECIFIED) && peer->as != *as) | |
2607 | || (peer->as_type != as_type)) | |
2608 | peer_as_change(peer, *as, as_type); | |
2609 | } | |
f14e6fdb | 2610 | |
d62a17ae | 2611 | return 0; |
f14e6fdb DS |
2612 | } |
2613 | ||
4e2786df DA |
2614 | int peer_notify_unconfig(struct peer *peer) |
2615 | { | |
2616 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
2617 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
2618 | BGP_NOTIFY_CEASE_PEER_UNCONFIG); | |
2619 | return 0; | |
2620 | } | |
2621 | ||
2622 | int peer_group_notify_unconfig(struct peer_group *group) | |
2623 | { | |
2624 | struct peer *peer, *other; | |
2625 | struct listnode *node, *nnode; | |
2626 | ||
2627 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
2628 | other = peer->doppelganger; | |
2629 | if (other && other->status != Deleted) { | |
2630 | other->group = NULL; | |
2631 | peer_notify_unconfig(other); | |
2632 | } else | |
2633 | peer_notify_unconfig(peer); | |
2634 | } | |
2635 | return 0; | |
2636 | } | |
2637 | ||
d62a17ae | 2638 | int peer_group_delete(struct peer_group *group) |
f14e6fdb | 2639 | { |
d62a17ae | 2640 | struct bgp *bgp; |
2641 | struct peer *peer; | |
2642 | struct prefix *prefix; | |
2643 | struct peer *other; | |
2644 | struct listnode *node, *nnode; | |
2645 | afi_t afi; | |
f14e6fdb | 2646 | |
d62a17ae | 2647 | bgp = group->bgp; |
f14e6fdb | 2648 | |
d62a17ae | 2649 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { |
2650 | other = peer->doppelganger; | |
2651 | peer_delete(peer); | |
2652 | if (other && other->status != Deleted) { | |
2653 | other->group = NULL; | |
2654 | peer_delete(other); | |
2655 | } | |
2656 | } | |
6a154c88 | 2657 | list_delete(&group->peer); |
f14e6fdb | 2658 | |
d62a17ae | 2659 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
2660 | for (ALL_LIST_ELEMENTS(group->listen_range[afi], node, nnode, | |
2661 | prefix)) { | |
63265b5c | 2662 | prefix_free(&prefix); |
d62a17ae | 2663 | } |
6a154c88 | 2664 | list_delete(&group->listen_range[afi]); |
d62a17ae | 2665 | } |
f14e6fdb | 2666 | |
d62a17ae | 2667 | XFREE(MTYPE_PEER_GROUP_HOST, group->name); |
2668 | group->name = NULL; | |
0299c004 | 2669 | |
d62a17ae | 2670 | bfd_info_free(&(group->conf->bfd_info)); |
f14e6fdb | 2671 | |
d62a17ae | 2672 | group->conf->group = NULL; |
2673 | peer_delete(group->conf); | |
f14e6fdb | 2674 | |
d62a17ae | 2675 | /* Delete from all peer_group list. */ |
2676 | listnode_delete(bgp->group, group); | |
f14e6fdb | 2677 | |
d62a17ae | 2678 | peer_group_free(group); |
f14e6fdb | 2679 | |
d62a17ae | 2680 | return 0; |
2681 | } | |
f14e6fdb | 2682 | |
d62a17ae | 2683 | int peer_group_remote_as_delete(struct peer_group *group) |
2684 | { | |
2685 | struct peer *peer, *other; | |
2686 | struct listnode *node, *nnode; | |
f14e6fdb | 2687 | |
d62a17ae | 2688 | if ((group->conf->as_type == AS_UNSPECIFIED) |
2689 | || ((!group->conf->as) && (group->conf->as_type == AS_SPECIFIED))) | |
2690 | return 0; | |
f14e6fdb | 2691 | |
d62a17ae | 2692 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { |
2693 | other = peer->doppelganger; | |
f14e6fdb | 2694 | |
d62a17ae | 2695 | peer_delete(peer); |
f14e6fdb | 2696 | |
d62a17ae | 2697 | if (other && other->status != Deleted) { |
2698 | other->group = NULL; | |
2699 | peer_delete(other); | |
2700 | } | |
2701 | } | |
2702 | list_delete_all_node(group->peer); | |
f14e6fdb | 2703 | |
d62a17ae | 2704 | group->conf->as = 0; |
2705 | group->conf->as_type = AS_UNSPECIFIED; | |
f14e6fdb | 2706 | |
d62a17ae | 2707 | return 0; |
f14e6fdb | 2708 | } |
d62a17ae | 2709 | |
2710 | int peer_group_listen_range_add(struct peer_group *group, struct prefix *range) | |
f14e6fdb | 2711 | { |
d62a17ae | 2712 | struct prefix *prefix; |
2713 | struct listnode *node, *nnode; | |
2714 | afi_t afi; | |
f14e6fdb | 2715 | |
d62a17ae | 2716 | afi = family2afi(range->family); |
f14e6fdb | 2717 | |
d62a17ae | 2718 | /* Group needs remote AS configured. */ |
2719 | if (group->conf->as_type == AS_UNSPECIFIED) | |
2720 | return BGP_ERR_PEER_GROUP_NO_REMOTE_AS; | |
718e3744 | 2721 | |
d62a17ae | 2722 | /* Ensure no duplicates. Currently we don't care about overlaps. */ |
2723 | for (ALL_LIST_ELEMENTS(group->listen_range[afi], node, nnode, prefix)) { | |
2724 | if (prefix_same(range, prefix)) | |
2725 | return 0; | |
2726 | } | |
2727 | ||
2728 | prefix = prefix_new(); | |
2729 | prefix_copy(prefix, range); | |
2730 | listnode_add(group->listen_range[afi], prefix); | |
9e7d9a61 QY |
2731 | |
2732 | /* Update passwords for new ranges */ | |
2733 | if (group->conf->password) | |
2734 | bgp_md5_set_prefix(prefix, group->conf->password); | |
2735 | ||
d62a17ae | 2736 | return 0; |
718e3744 | 2737 | } |
6b0655a2 | 2738 | |
d62a17ae | 2739 | int peer_group_listen_range_del(struct peer_group *group, struct prefix *range) |
718e3744 | 2740 | { |
d62a17ae | 2741 | struct prefix *prefix, prefix2; |
2742 | struct listnode *node, *nnode; | |
2743 | struct peer *peer; | |
2744 | afi_t afi; | |
2745 | char buf[PREFIX2STR_BUFFER]; | |
718e3744 | 2746 | |
d62a17ae | 2747 | afi = family2afi(range->family); |
1ff9a340 | 2748 | |
d62a17ae | 2749 | /* Identify the listen range. */ |
2750 | for (ALL_LIST_ELEMENTS(group->listen_range[afi], node, nnode, prefix)) { | |
2751 | if (prefix_same(range, prefix)) | |
2752 | break; | |
1ff9a340 | 2753 | } |
718e3744 | 2754 | |
d62a17ae | 2755 | if (!prefix) |
2756 | return BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_NOT_FOUND; | |
2757 | ||
2758 | prefix2str(prefix, buf, sizeof(buf)); | |
2759 | ||
2760 | /* Dispose off any dynamic neighbors that exist due to this listen range | |
2761 | */ | |
2762 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
2763 | if (!peer_dynamic_neighbor(peer)) | |
2764 | continue; | |
2765 | ||
2766 | sockunion2hostprefix(&peer->su, &prefix2); | |
2767 | if (prefix_match(prefix, &prefix2)) { | |
2768 | if (bgp_debug_neighbor_events(peer)) | |
2769 | zlog_debug( | |
2770 | "Deleting dynamic neighbor %s group %s upon " | |
2771 | "delete of listen range %s", | |
2772 | peer->host, group->name, buf); | |
2773 | peer_delete(peer); | |
2774 | } | |
2775 | } | |
718e3744 | 2776 | |
d62a17ae | 2777 | /* Get rid of the listen range */ |
2778 | listnode_delete(group->listen_range[afi], prefix); | |
718e3744 | 2779 | |
9e7d9a61 QY |
2780 | /* Remove passwords for deleted ranges */ |
2781 | if (group->conf->password) | |
2782 | bgp_md5_unset_prefix(prefix); | |
2783 | ||
d62a17ae | 2784 | return 0; |
2785 | } | |
e0701b79 | 2786 | |
d62a17ae | 2787 | /* Bind specified peer to peer group. */ |
2788 | int peer_group_bind(struct bgp *bgp, union sockunion *su, struct peer *peer, | |
2789 | struct peer_group *group, as_t *as) | |
2790 | { | |
2791 | int first_member = 0; | |
2792 | afi_t afi; | |
2793 | safi_t safi; | |
d62a17ae | 2794 | |
2795 | /* Lookup the peer. */ | |
2796 | if (!peer) | |
2797 | peer = peer_lookup(bgp, su); | |
2798 | ||
2799 | /* The peer exist, bind it to the peer-group */ | |
2800 | if (peer) { | |
ed9fb826 | 2801 | /* When the peer already belongs to a peer-group, check the |
d62a17ae | 2802 | * consistency. */ |
ed9fb826 DW |
2803 | if (peer_group_active(peer)) { |
2804 | ||
2805 | /* The peer is already bound to the peer-group, | |
d8a079e8 DW |
2806 | * nothing to do |
2807 | */ | |
ed9fb826 DW |
2808 | if (strcmp(peer->group->name, group->name) == 0) |
2809 | return 0; | |
2810 | else | |
2811 | return BGP_ERR_PEER_GROUP_CANT_CHANGE; | |
2812 | } | |
d62a17ae | 2813 | |
2814 | /* The peer has not specified a remote-as, inherit it from the | |
2815 | * peer-group */ | |
2816 | if (peer->as_type == AS_UNSPECIFIED) { | |
2817 | peer->as_type = group->conf->as_type; | |
2818 | peer->as = group->conf->as; | |
faa16034 | 2819 | peer->sort = group->conf->sort; |
d62a17ae | 2820 | } |
718e3744 | 2821 | |
390485fd | 2822 | if (!group->conf->as && peer_sort(peer)) { |
d62a17ae | 2823 | if (peer_sort(group->conf) != BGP_PEER_INTERNAL |
2824 | && peer_sort(group->conf) != peer_sort(peer)) { | |
2825 | if (as) | |
2826 | *as = peer->as; | |
2827 | return BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT; | |
2828 | } | |
718e3744 | 2829 | |
d62a17ae | 2830 | if (peer_sort(group->conf) == BGP_PEER_INTERNAL) |
2831 | first_member = 1; | |
2832 | } | |
718e3744 | 2833 | |
d62a17ae | 2834 | peer_group2peer_config_copy(group, peer); |
2835 | ||
05c7a1cc QY |
2836 | FOREACH_AFI_SAFI (afi, safi) { |
2837 | if (group->conf->afc[afi][safi]) { | |
2838 | peer->afc[afi][safi] = 1; | |
2839 | ||
2840 | if (peer_af_find(peer, afi, safi) | |
2841 | || peer_af_create(peer, afi, safi)) { | |
2842 | peer_group2peer_config_copy_af( | |
2843 | group, peer, afi, safi); | |
2844 | } | |
2845 | } else if (peer->afc[afi][safi]) | |
2846 | peer_deactivate(peer, afi, safi); | |
a4d82a8a | 2847 | } |
d62a17ae | 2848 | |
2849 | if (peer->group) { | |
2850 | assert(group && peer->group == group); | |
2851 | } else { | |
0866cdaf A |
2852 | listnode_delete(bgp->peer, peer); |
2853 | ||
d62a17ae | 2854 | peer->group = group; |
2855 | listnode_add_sort(bgp->peer, peer); | |
2856 | ||
2857 | peer = peer_lock(peer); /* group->peer list reference */ | |
2858 | listnode_add(group->peer, peer); | |
2859 | } | |
718e3744 | 2860 | |
d62a17ae | 2861 | if (first_member) { |
2862 | /* Advertisement-interval reset */ | |
b90a8e13 PM |
2863 | if (!CHECK_FLAG(group->conf->flags, |
2864 | PEER_FLAG_ROUTEADV)) { | |
2865 | group->conf->v_routeadv = | |
2866 | (peer_sort(group->conf) | |
2867 | == BGP_PEER_IBGP) | |
2868 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
2869 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 2870 | } |
2871 | ||
2872 | /* ebgp-multihop reset */ | |
2873 | if (peer_sort(group->conf) == BGP_PEER_IBGP) | |
2874 | group->conf->ttl = MAXTTL; | |
2875 | ||
2876 | /* local-as reset */ | |
2877 | if (peer_sort(group->conf) != BGP_PEER_EBGP) { | |
2878 | group->conf->change_local_as = 0; | |
a14810f4 PM |
2879 | peer_flag_unset(group->conf, |
2880 | PEER_FLAG_LOCAL_AS); | |
2881 | peer_flag_unset(group->conf, | |
2882 | PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
2883 | peer_flag_unset(group->conf, | |
2884 | PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
d62a17ae | 2885 | } |
2886 | } | |
718e3744 | 2887 | |
d62a17ae | 2888 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); |
718e3744 | 2889 | |
d62a17ae | 2890 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
2891 | peer->last_reset = PEER_DOWN_RMAP_BIND; | |
2892 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
2893 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
2894 | } else { | |
2895 | bgp_session_reset(peer); | |
2896 | } | |
2897 | } | |
718e3744 | 2898 | |
d62a17ae | 2899 | /* Create a new peer. */ |
2900 | else { | |
2901 | if ((group->conf->as_type == AS_SPECIFIED) | |
2902 | && (!group->conf->as)) { | |
2903 | return BGP_ERR_PEER_GROUP_NO_REMOTE_AS; | |
2904 | } | |
718e3744 | 2905 | |
d62a17ae | 2906 | peer = peer_create(su, NULL, bgp, bgp->as, group->conf->as, |
2907 | group->conf->as_type, 0, 0, group); | |
718e3744 | 2908 | |
d62a17ae | 2909 | peer = peer_lock(peer); /* group->peer list reference */ |
2910 | listnode_add(group->peer, peer); | |
718e3744 | 2911 | |
d62a17ae | 2912 | peer_group2peer_config_copy(group, peer); |
a4ed4829 | 2913 | |
d62a17ae | 2914 | /* If the peer-group is active for this afi/safi then activate |
2915 | * for this peer */ | |
05c7a1cc QY |
2916 | FOREACH_AFI_SAFI (afi, safi) { |
2917 | if (group->conf->afc[afi][safi]) { | |
2918 | peer->afc[afi][safi] = 1; | |
2919 | peer_af_create(peer, afi, safi); | |
2920 | peer_group2peer_config_copy_af(group, peer, afi, | |
2921 | safi); | |
2922 | } else if (peer->afc[afi][safi]) | |
2923 | peer_deactivate(peer, afi, safi); | |
2924 | } | |
718e3744 | 2925 | |
d62a17ae | 2926 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); |
718e3744 | 2927 | |
d62a17ae | 2928 | /* Set up peer's events and timers. */ |
2929 | if (peer_active(peer)) | |
2930 | bgp_timer_set(peer); | |
2931 | } | |
718e3744 | 2932 | |
d62a17ae | 2933 | return 0; |
718e3744 | 2934 | } |
2935 | ||
d62a17ae | 2936 | static int bgp_startup_timer_expire(struct thread *thread) |
2937 | { | |
2938 | struct bgp *bgp; | |
718e3744 | 2939 | |
d62a17ae | 2940 | bgp = THREAD_ARG(thread); |
2941 | bgp->t_startup = NULL; | |
718e3744 | 2942 | |
d62a17ae | 2943 | return 0; |
2944 | } | |
e0701b79 | 2945 | |
829e590b DS |
2946 | /* |
2947 | * On shutdown we call the cleanup function which | |
2948 | * does a free of the link list nodes, free up | |
2949 | * the data we are pointing at too. | |
2950 | */ | |
2951 | static void bgp_vrf_string_name_delete(void *data) | |
2952 | { | |
2953 | char *vname = data; | |
2954 | ||
2955 | XFREE(MTYPE_TMP, vname); | |
2956 | } | |
2957 | ||
d62a17ae | 2958 | /* BGP instance creation by `router bgp' commands. */ |
2959 | static struct bgp *bgp_create(as_t *as, const char *name, | |
2960 | enum bgp_instance_type inst_type) | |
2961 | { | |
0291c246 MK |
2962 | struct bgp *bgp; |
2963 | afi_t afi; | |
2964 | safi_t safi; | |
d62a17ae | 2965 | |
2966 | if ((bgp = XCALLOC(MTYPE_BGP, sizeof(struct bgp))) == NULL) | |
2967 | return NULL; | |
2968 | ||
2969 | if (BGP_DEBUG(zebra, ZEBRA)) { | |
2970 | if (inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
2971 | zlog_debug("Creating Default VRF, AS %u", *as); | |
2972 | else | |
2973 | zlog_debug("Creating %s %s, AS %u", | |
2974 | (inst_type == BGP_INSTANCE_TYPE_VRF) | |
2975 | ? "VRF" | |
2976 | : "VIEW", | |
2977 | name, *as); | |
718e3744 | 2978 | } |
adbac85e | 2979 | |
e2f3a930 T |
2980 | /* Default the EVPN VRF to the default one */ |
2981 | if (inst_type == BGP_INSTANCE_TYPE_DEFAULT && !bgp_master.bgp_evpn) { | |
2982 | bgp_lock(bgp); | |
2983 | bm->bgp_evpn = bgp; | |
2984 | } | |
2985 | ||
d62a17ae | 2986 | bgp_lock(bgp); |
9df5ac49 | 2987 | bgp->heuristic_coalesce = true; |
d62a17ae | 2988 | bgp->inst_type = inst_type; |
2989 | bgp->vrf_id = (inst_type == BGP_INSTANCE_TYPE_DEFAULT) ? VRF_DEFAULT | |
2990 | : VRF_UNKNOWN; | |
2991 | bgp->peer_self = peer_new(bgp); | |
0a22ddfb | 2992 | XFREE(MTYPE_BGP_PEER_HOST, bgp->peer_self->host); |
d62a17ae | 2993 | bgp->peer_self->host = |
2994 | XSTRDUP(MTYPE_BGP_PEER_HOST, "Static announcement"); | |
d77114b7 MK |
2995 | if (bgp->peer_self->hostname != NULL) { |
2996 | XFREE(MTYPE_BGP_PEER_HOST, bgp->peer_self->hostname); | |
2997 | bgp->peer_self->hostname = NULL; | |
2998 | } | |
6b3ee3a0 | 2999 | if (cmd_hostname_get()) |
60466a63 QY |
3000 | bgp->peer_self->hostname = |
3001 | XSTRDUP(MTYPE_BGP_PEER_HOST, cmd_hostname_get()); | |
d77114b7 MK |
3002 | |
3003 | if (bgp->peer_self->domainname != NULL) { | |
3004 | XFREE(MTYPE_BGP_PEER_HOST, bgp->peer_self->domainname); | |
3005 | bgp->peer_self->domainname = NULL; | |
3006 | } | |
6b3ee3a0 | 3007 | if (cmd_domainname_get()) |
60466a63 QY |
3008 | bgp->peer_self->domainname = |
3009 | XSTRDUP(MTYPE_BGP_PEER_HOST, cmd_domainname_get()); | |
d62a17ae | 3010 | bgp->peer = list_new(); |
3011 | bgp->peer->cmp = (int (*)(void *, void *))peer_cmp; | |
a4d82a8a | 3012 | bgp->peerhash = hash_create(peer_hash_key_make, peer_hash_same, |
3f65c5b1 | 3013 | "BGP Peer Hash"); |
40520c36 | 3014 | bgp->peerhash->max_size = BGP_PEER_MAX_HASH_SIZE; |
d62a17ae | 3015 | |
3016 | bgp->group = list_new(); | |
3017 | bgp->group->cmp = (int (*)(void *, void *))peer_group_cmp; | |
3018 | ||
05c7a1cc | 3019 | FOREACH_AFI_SAFI (afi, safi) { |
960035b2 PZ |
3020 | bgp->route[afi][safi] = bgp_table_init(bgp, afi, safi); |
3021 | bgp->aggregate[afi][safi] = bgp_table_init(bgp, afi, safi); | |
3022 | bgp->rib[afi][safi] = bgp_table_init(bgp, afi, safi); | |
05c7a1cc QY |
3023 | |
3024 | /* Enable maximum-paths */ | |
3025 | bgp_maximum_paths_set(bgp, afi, safi, BGP_PEER_EBGP, | |
3026 | multipath_num, 0); | |
3027 | bgp_maximum_paths_set(bgp, afi, safi, BGP_PEER_IBGP, | |
3028 | multipath_num, 0); | |
cfd47646 | 3029 | /* Initialize graceful restart info */ |
3030 | bgp->gr_info[afi][safi].eor_required = 0; | |
3031 | bgp->gr_info[afi][safi].eor_received = 0; | |
3032 | bgp->gr_info[afi][safi].t_select_deferral = NULL; | |
3033 | bgp->gr_info[afi][safi].t_route_select = NULL; | |
3034 | bgp->gr_info[afi][safi].route_list = list_new(); | |
05c7a1cc | 3035 | } |
d62a17ae | 3036 | |
3037 | bgp->v_update_delay = BGP_UPDATE_DELAY_DEF; | |
3038 | bgp->default_local_pref = BGP_DEFAULT_LOCAL_PREF; | |
3039 | bgp->default_subgroup_pkt_queue_max = | |
3040 | BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX; | |
5d5393b9 | 3041 | bgp_timers_unset(bgp); |
d62a17ae | 3042 | bgp->restart_time = BGP_DEFAULT_RESTART_TIME; |
3043 | bgp->stalepath_time = BGP_DEFAULT_STALEPATH_TIME; | |
cfd47646 | 3044 | bgp->select_defer_time = BGP_DEFAULT_SELECT_DEFERRAL_TIME; |
dc95985f | 3045 | bgp->rib_stale_time = BGP_DEFAULT_RIB_STALE_TIME; |
d62a17ae | 3046 | bgp->dynamic_neighbors_limit = BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT; |
3047 | bgp->dynamic_neighbors_count = 0; | |
9dac9fc8 | 3048 | bgp->ebgp_requires_policy = DEFAULT_EBGP_POLICY_DISABLED; |
fb29348a | 3049 | bgp->reject_as_sets = BGP_REJECT_AS_SETS_DISABLED; |
dcc68b5e | 3050 | bgp_addpath_init_bgp_data(&bgp->tx_addpath); |
d62a17ae | 3051 | |
3052 | bgp->as = *as; | |
3053 | ||
3054 | #if ENABLE_BGP_VNC | |
3055 | if (inst_type != BGP_INSTANCE_TYPE_VRF) { | |
3056 | bgp->rfapi = bgp_rfapi_new(bgp); | |
3057 | assert(bgp->rfapi); | |
3058 | assert(bgp->rfapi_cfg); | |
3059 | } | |
3060 | #endif /* ENABLE_BGP_VNC */ | |
adbac85e | 3061 | |
ddb5b488 | 3062 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
e70e9f8e PZ |
3063 | bgp->vpn_policy[afi].bgp = bgp; |
3064 | bgp->vpn_policy[afi].afi = afi; | |
ddb5b488 PZ |
3065 | bgp->vpn_policy[afi].tovpn_label = MPLS_LABEL_NONE; |
3066 | bgp->vpn_policy[afi].tovpn_zebra_vrf_label_last_sent = | |
3067 | MPLS_LABEL_NONE; | |
12a844a5 DS |
3068 | |
3069 | bgp->vpn_policy[afi].import_vrf = list_new(); | |
829e590b DS |
3070 | bgp->vpn_policy[afi].import_vrf->del = |
3071 | bgp_vrf_string_name_delete; | |
12a844a5 | 3072 | bgp->vpn_policy[afi].export_vrf = list_new(); |
829e590b DS |
3073 | bgp->vpn_policy[afi].export_vrf->del = |
3074 | bgp_vrf_string_name_delete; | |
ddb5b488 | 3075 | } |
dc95985f | 3076 | if (name) |
d62a17ae | 3077 | bgp->name = XSTRDUP(MTYPE_BGP, name); |
dc95985f | 3078 | |
3079 | thread_add_timer(bm->master, bgp_startup_timer_expire, bgp, | |
3080 | bgp->restart_time, &bgp->t_startup); | |
06370dac | 3081 | |
3572fb26 PZ |
3082 | /* printable name we can use in debug messages */ |
3083 | if (inst_type == BGP_INSTANCE_TYPE_DEFAULT) { | |
3084 | bgp->name_pretty = XSTRDUP(MTYPE_BGP, "VRF default"); | |
3085 | } else { | |
3086 | const char *n; | |
3087 | int len; | |
3088 | ||
3089 | if (bgp->name) | |
3090 | n = bgp->name; | |
3091 | else | |
3092 | n = "?"; | |
3093 | ||
3094 | len = 4 + 1 + strlen(n) + 1; /* "view foo\0" */ | |
3095 | ||
3096 | bgp->name_pretty = XCALLOC(MTYPE_BGP, len); | |
3097 | snprintf(bgp->name_pretty, len, "%s %s", | |
3098 | (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) | |
3099 | ? "VRF" | |
3100 | : "VIEW", | |
3101 | n); | |
3102 | } | |
3103 | ||
555e09d4 QY |
3104 | atomic_store_explicit(&bgp->wpkt_quanta, BGP_WRITE_PACKET_MAX, |
3105 | memory_order_relaxed); | |
3106 | atomic_store_explicit(&bgp->rpkt_quanta, BGP_READ_PACKET_MAX, | |
3107 | memory_order_relaxed); | |
d62a17ae | 3108 | bgp->coalesce_time = BGP_DEFAULT_SUBGROUP_COALESCE_TIME; |
adbac85e | 3109 | |
d62a17ae | 3110 | QOBJ_REG(bgp, bgp); |
adbac85e | 3111 | |
d62a17ae | 3112 | update_bgp_group_init(bgp); |
92708db6 | 3113 | |
3114 | /* assign a unique rd id for auto derivation of vrf's RD */ | |
3115 | bf_assign_index(bm->rd_idspace, bgp->vrf_rd_id); | |
3116 | ||
85c8d83b CS |
3117 | bgp->evpn_info = XCALLOC(MTYPE_BGP_EVPN_INFO, |
3118 | sizeof(struct bgp_evpn_info)); | |
3119 | ||
d62a17ae | 3120 | bgp_evpn_init(bgp); |
f3d32faa | 3121 | bgp_pbr_init(bgp); |
794b37d5 | 3122 | |
3123 | /*initilize global GR FSM */ | |
3124 | bgp_global_gr_init(bgp); | |
d62a17ae | 3125 | return bgp; |
718e3744 | 3126 | } |
3127 | ||
d62a17ae | 3128 | /* Return the "default VRF" instance of BGP. */ |
3129 | struct bgp *bgp_get_default(void) | |
718e3744 | 3130 | { |
d62a17ae | 3131 | struct bgp *bgp; |
3132 | struct listnode *node, *nnode; | |
3133 | ||
3134 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) | |
3135 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
3136 | return bgp; | |
3137 | return NULL; | |
718e3744 | 3138 | } |
3139 | ||
d62a17ae | 3140 | /* Lookup BGP entry. */ |
3141 | struct bgp *bgp_lookup(as_t as, const char *name) | |
718e3744 | 3142 | { |
d62a17ae | 3143 | struct bgp *bgp; |
3144 | struct listnode *node, *nnode; | |
6b0655a2 | 3145 | |
d62a17ae | 3146 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) |
3147 | if (bgp->as == as | |
3148 | && ((bgp->name == NULL && name == NULL) | |
3149 | || (bgp->name && name && strcmp(bgp->name, name) == 0))) | |
3150 | return bgp; | |
3151 | return NULL; | |
3152 | } | |
73d70fa6 | 3153 | |
d62a17ae | 3154 | /* Lookup BGP structure by view name. */ |
3155 | struct bgp *bgp_lookup_by_name(const char *name) | |
73d70fa6 | 3156 | { |
d62a17ae | 3157 | struct bgp *bgp; |
3158 | struct listnode *node, *nnode; | |
3159 | ||
3160 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) | |
3161 | if ((bgp->name == NULL && name == NULL) | |
3162 | || (bgp->name && name && strcmp(bgp->name, name) == 0)) | |
3163 | return bgp; | |
3164 | return NULL; | |
73d70fa6 DL |
3165 | } |
3166 | ||
d62a17ae | 3167 | /* Lookup BGP instance based on VRF id. */ |
3168 | /* Note: Only to be used for incoming messages from Zebra. */ | |
3169 | struct bgp *bgp_lookup_by_vrf_id(vrf_id_t vrf_id) | |
73d70fa6 | 3170 | { |
d62a17ae | 3171 | struct vrf *vrf; |
3172 | ||
3173 | /* Lookup VRF (in tree) and follow link. */ | |
3174 | vrf = vrf_lookup_by_id(vrf_id); | |
3175 | if (!vrf) | |
3176 | return NULL; | |
3177 | return (vrf->info) ? (struct bgp *)vrf->info : NULL; | |
73d70fa6 DL |
3178 | } |
3179 | ||
e2f3a930 T |
3180 | /* Sets the BGP instance where EVPN is enabled */ |
3181 | void bgp_set_evpn(struct bgp *bgp) | |
3182 | { | |
3183 | if (bm->bgp_evpn == bgp) | |
3184 | return; | |
3185 | ||
3186 | /* First, release the reference count we hold on the instance */ | |
3187 | if (bm->bgp_evpn) | |
3188 | bgp_unlock(bm->bgp_evpn); | |
3189 | ||
3190 | bm->bgp_evpn = bgp; | |
3191 | ||
3192 | /* Increase the reference count on this new VRF */ | |
3193 | if (bm->bgp_evpn) | |
3194 | bgp_lock(bm->bgp_evpn); | |
3195 | } | |
3196 | ||
3197 | /* Returns the BGP instance where EVPN is enabled, if any */ | |
3198 | struct bgp *bgp_get_evpn(void) | |
3199 | { | |
3200 | return bm->bgp_evpn; | |
3201 | } | |
3202 | ||
e5619c28 PG |
3203 | /* handle socket creation or deletion, if necessary |
3204 | * this is called for all new BGP instances | |
3205 | */ | |
996c9314 LB |
3206 | int bgp_handle_socket(struct bgp *bgp, struct vrf *vrf, vrf_id_t old_vrf_id, |
3207 | bool create) | |
e5619c28 PG |
3208 | { |
3209 | int ret = 0; | |
3210 | ||
3211 | /* Create BGP server socket, if listen mode not disabled */ | |
3212 | if (!bgp || bgp_option_check(BGP_OPT_NO_LISTEN)) | |
3213 | return 0; | |
3ad00234 | 3214 | if (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) { |
e5619c28 PG |
3215 | /* |
3216 | * suppress vrf socket | |
3217 | */ | |
2951a7a4 | 3218 | if (create == false) { |
3ad00234 LB |
3219 | bgp_close_vrf_socket(bgp); |
3220 | return 0; | |
e5619c28 | 3221 | } |
3ad00234 LB |
3222 | if (vrf == NULL) |
3223 | return BGP_ERR_INVALID_VALUE; | |
e5619c28 PG |
3224 | /* do nothing |
3225 | * if vrf_id did not change | |
3226 | */ | |
3227 | if (vrf->vrf_id == old_vrf_id) | |
3228 | return 0; | |
3229 | if (old_vrf_id != VRF_UNKNOWN) { | |
3230 | /* look for old socket. close it. */ | |
3231 | bgp_close_vrf_socket(bgp); | |
3232 | } | |
3233 | /* if backend is not yet identified ( VRF_UNKNOWN) then | |
3234 | * creation will be done later | |
3235 | */ | |
3236 | if (vrf->vrf_id == VRF_UNKNOWN) | |
3237 | return 0; | |
3ad00234 LB |
3238 | ret = bgp_socket(bgp, bm->port, bm->address); |
3239 | if (ret < 0) | |
3240 | return BGP_ERR_INVALID_VALUE; | |
3241 | return 0; | |
3242 | } else | |
3243 | return bgp_check_main_socket(create, bgp); | |
e5619c28 PG |
3244 | } |
3245 | ||
d62a17ae | 3246 | /* Called from VTY commands. */ |
3247 | int bgp_get(struct bgp **bgp_val, as_t *as, const char *name, | |
3248 | enum bgp_instance_type inst_type) | |
3249 | { | |
3250 | struct bgp *bgp; | |
e5619c28 | 3251 | struct vrf *vrf = NULL; |
d62a17ae | 3252 | |
3253 | /* Multiple instance check. */ | |
8fbb4853 DS |
3254 | if (name) |
3255 | bgp = bgp_lookup_by_name(name); | |
3256 | else | |
d62a17ae | 3257 | bgp = bgp_get_default(); |
3258 | ||
8fbb4853 DS |
3259 | /* Already exists. */ |
3260 | if (bgp) { | |
3261 | if (bgp->as != *as) { | |
3262 | *as = bgp->as; | |
3263 | return BGP_ERR_INSTANCE_MISMATCH; | |
d62a17ae | 3264 | } |
8fbb4853 DS |
3265 | if (bgp->inst_type != inst_type) |
3266 | return BGP_ERR_INSTANCE_MISMATCH; | |
3267 | *bgp_val = bgp; | |
d5568431 | 3268 | return BGP_SUCCESS; |
d62a17ae | 3269 | } |
73d70fa6 | 3270 | |
d62a17ae | 3271 | bgp = bgp_create(as, name, inst_type); |
0b014ea6 PG |
3272 | if (bgp_option_check(BGP_OPT_NO_ZEBRA) && name) |
3273 | bgp->vrf_id = vrf_generate_id(); | |
2951a7a4 | 3274 | bgp_router_id_set(bgp, &bgp->router_id_zebra, true); |
d62a17ae | 3275 | bgp_address_init(bgp); |
db0e1937 | 3276 | bgp_tip_hash_init(bgp); |
d62a17ae | 3277 | bgp_scan_init(bgp); |
3278 | *bgp_val = bgp; | |
eb821189 | 3279 | |
d62a17ae | 3280 | bgp->t_rmap_def_originate_eval = NULL; |
e5cc509c | 3281 | |
d62a17ae | 3282 | /* If Default instance or VRF, link to the VRF structure, if present. */ |
3283 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT | |
3284 | || bgp->inst_type == BGP_INSTANCE_TYPE_VRF) { | |
d62a17ae | 3285 | vrf = bgp_vrf_lookup_by_instance_type(bgp); |
3286 | if (vrf) | |
3287 | bgp_vrf_link(bgp, vrf); | |
3288 | } | |
e5619c28 PG |
3289 | /* BGP server socket already processed if BGP instance |
3290 | * already part of the list | |
3291 | */ | |
3292 | bgp_handle_socket(bgp, vrf, VRF_UNKNOWN, true); | |
3293 | listnode_add(bm->bgp, bgp); | |
718e3744 | 3294 | |
bb4ef1ae DS |
3295 | if (IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
3296 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3297 | zlog_debug("%s: Registering BGP instance %s to zebra", | |
3298 | __PRETTY_FUNCTION__, name); | |
d62a17ae | 3299 | bgp_zebra_instance_register(bgp); |
bb4ef1ae | 3300 | } |
718e3744 | 3301 | |
5d5393b9 | 3302 | return BGP_CREATED; |
718e3744 | 3303 | } |
6b0655a2 | 3304 | |
d62a17ae | 3305 | /* |
3306 | * Make BGP instance "up". Applies only to VRFs (non-default) and | |
3307 | * implies the VRF has been learnt from Zebra. | |
3308 | */ | |
3309 | void bgp_instance_up(struct bgp *bgp) | |
718e3744 | 3310 | { |
d62a17ae | 3311 | struct peer *peer; |
3312 | struct listnode *node, *next; | |
718e3744 | 3313 | |
d62a17ae | 3314 | /* Register with zebra. */ |
3315 | bgp_zebra_instance_register(bgp); | |
718e3744 | 3316 | |
d62a17ae | 3317 | /* Kick off any peers that may have been configured. */ |
3318 | for (ALL_LIST_ELEMENTS(bgp->peer, node, next, peer)) { | |
3319 | if (!BGP_PEER_START_SUPPRESSED(peer)) | |
3320 | BGP_EVENT_ADD(peer, BGP_Start); | |
718e3744 | 3321 | } |
3322 | ||
d62a17ae | 3323 | /* Process any networks that have been configured. */ |
3324 | bgp_static_add(bgp); | |
3325 | } | |
3326 | ||
3327 | /* | |
3328 | * Make BGP instance "down". Applies only to VRFs (non-default) and | |
3329 | * implies the VRF has been deleted by Zebra. | |
3330 | */ | |
3331 | void bgp_instance_down(struct bgp *bgp) | |
3332 | { | |
3333 | struct peer *peer; | |
3334 | struct listnode *node; | |
3335 | struct listnode *next; | |
3336 | ||
3337 | /* Stop timers. */ | |
3338 | if (bgp->t_rmap_def_originate_eval) { | |
3339 | BGP_TIMER_OFF(bgp->t_rmap_def_originate_eval); | |
3340 | bgp_unlock(bgp); /* TODO - This timer is started with a lock - | |
3341 | why? */ | |
718e3744 | 3342 | } |
3343 | ||
d62a17ae | 3344 | /* Bring down peers, so corresponding routes are purged. */ |
3345 | for (ALL_LIST_ELEMENTS(bgp->peer, node, next, peer)) { | |
3346 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
3347 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3348 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN); | |
3349 | else | |
3350 | bgp_session_reset(peer); | |
3351 | } | |
718e3744 | 3352 | |
d62a17ae | 3353 | /* Purge network and redistributed routes. */ |
3354 | bgp_purge_static_redist_routes(bgp); | |
ee7ca6c0 | 3355 | |
3356 | /* Cleanup registered nexthops (flags) */ | |
3357 | bgp_cleanup_nexthops(bgp); | |
718e3744 | 3358 | } |
3359 | ||
d62a17ae | 3360 | /* Delete BGP instance. */ |
3361 | int bgp_delete(struct bgp *bgp) | |
3362 | { | |
3363 | struct peer *peer; | |
3364 | struct peer_group *group; | |
3365 | struct listnode *node, *next; | |
3366 | struct vrf *vrf; | |
3367 | afi_t afi; | |
cfd47646 | 3368 | safi_t safi; |
d62a17ae | 3369 | int i; |
cfd47646 | 3370 | struct graceful_restart_info *gr_info; |
d62a17ae | 3371 | |
bf383464 | 3372 | assert(bgp); |
2b9bcf30 DL |
3373 | |
3374 | hook_call(bgp_inst_delete, bgp); | |
3375 | ||
d62a17ae | 3376 | THREAD_OFF(bgp->t_startup); |
c969b2ed DS |
3377 | THREAD_OFF(bgp->t_maxmed_onstartup); |
3378 | THREAD_OFF(bgp->t_update_delay); | |
3379 | THREAD_OFF(bgp->t_establish_wait); | |
d62a17ae | 3380 | |
9f822fa2 S |
3381 | /* Set flag indicating bgp instance delete in progress */ |
3382 | bgp_flag_set(bgp, BGP_FLAG_DELETE_IN_PROGRESS); | |
3383 | ||
cfd47646 | 3384 | /* Delete the graceful restart info */ |
3385 | FOREACH_AFI_SAFI (afi, safi) { | |
3386 | gr_info = &bgp->gr_info[afi][safi]; | |
13909c4f DS |
3387 | if (!gr_info) |
3388 | continue; | |
3389 | ||
3390 | BGP_TIMER_OFF(gr_info->t_select_deferral); | |
3391 | BGP_TIMER_OFF(gr_info->t_route_select); | |
3392 | if (gr_info->route_list) | |
3393 | list_delete(&gr_info->route_list); | |
cfd47646 | 3394 | } |
3395 | ||
d62a17ae | 3396 | if (BGP_DEBUG(zebra, ZEBRA)) { |
3397 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
3398 | zlog_debug("Deleting Default VRF"); | |
3399 | else | |
3400 | zlog_debug("Deleting %s %s", | |
3401 | (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) | |
3402 | ? "VRF" | |
3403 | : "VIEW", | |
3404 | bgp->name); | |
718e3744 | 3405 | } |
3406 | ||
10ebe1ab MK |
3407 | /* unmap from RT list */ |
3408 | bgp_evpn_vrf_delete(bgp); | |
3409 | ||
dfd17258 PG |
3410 | /* unmap bgp vrf label */ |
3411 | vpn_leak_zebra_vrf_label_withdraw(bgp, AFI_IP); | |
3412 | vpn_leak_zebra_vrf_label_withdraw(bgp, AFI_IP6); | |
3413 | ||
d62a17ae | 3414 | /* Stop timers. */ |
3415 | if (bgp->t_rmap_def_originate_eval) { | |
3416 | BGP_TIMER_OFF(bgp->t_rmap_def_originate_eval); | |
3417 | bgp_unlock(bgp); /* TODO - This timer is started with a lock - | |
3418 | why? */ | |
718e3744 | 3419 | } |
3420 | ||
d62a17ae | 3421 | /* Inform peers we're going down. */ |
3422 | for (ALL_LIST_ELEMENTS(bgp->peer, node, next, peer)) { | |
3423 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
3424 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3425 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN); | |
718e3744 | 3426 | } |
3427 | ||
d62a17ae | 3428 | /* Delete static routes (networks). */ |
3429 | bgp_static_delete(bgp); | |
6b0655a2 | 3430 | |
d62a17ae | 3431 | /* Unset redistribution. */ |
3432 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
3433 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
3434 | if (i != ZEBRA_ROUTE_BGP) | |
3435 | bgp_redistribute_unset(bgp, afi, i, 0); | |
718e3744 | 3436 | |
d62a17ae | 3437 | /* Free peers and peer-groups. */ |
3438 | for (ALL_LIST_ELEMENTS(bgp->group, node, next, group)) | |
3439 | peer_group_delete(group); | |
718e3744 | 3440 | |
d62a17ae | 3441 | for (ALL_LIST_ELEMENTS(bgp->peer, node, next, peer)) |
3442 | peer_delete(peer); | |
3443 | ||
3444 | if (bgp->peer_self) { | |
3445 | peer_delete(bgp->peer_self); | |
3446 | bgp->peer_self = NULL; | |
718e3744 | 3447 | } |
3448 | ||
d62a17ae | 3449 | update_bgp_group_free(bgp); |
718e3744 | 3450 | |
d62a17ae | 3451 | /* TODO - Other memory may need to be freed - e.g., NHT */ |
3452 | ||
3453 | #if ENABLE_BGP_VNC | |
3454 | rfapi_delete(bgp); | |
3455 | #endif | |
3456 | bgp_cleanup_routes(bgp); | |
718e3744 | 3457 | |
301ad80a PG |
3458 | for (afi = 0; afi < AFI_MAX; ++afi) { |
3459 | if (!bgp->vpn_policy[afi].import_redirect_rtlist) | |
3460 | continue; | |
3461 | ecommunity_free( | |
3462 | &bgp->vpn_policy[afi] | |
3463 | .import_redirect_rtlist); | |
3464 | bgp->vpn_policy[afi].import_redirect_rtlist = NULL; | |
3465 | } | |
718e3744 | 3466 | |
d62a17ae | 3467 | /* Deregister from Zebra, if needed */ |
bb4ef1ae DS |
3468 | if (IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
3469 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3470 | zlog_debug("%s: deregistering this bgp %s instance from zebra", | |
3471 | __PRETTY_FUNCTION__, bgp->name); | |
d62a17ae | 3472 | bgp_zebra_instance_deregister(bgp); |
bb4ef1ae | 3473 | } |
718e3744 | 3474 | |
de6058ab AK |
3475 | /* Remove visibility via the master list - there may however still be |
3476 | * routes to be processed still referencing the struct bgp. | |
3477 | */ | |
3478 | listnode_delete(bm->bgp, bgp); | |
3479 | ||
d62a17ae | 3480 | /* Free interfaces in this instance. */ |
3481 | bgp_if_finish(bgp); | |
718e3744 | 3482 | |
d62a17ae | 3483 | vrf = bgp_vrf_lookup_by_instance_type(bgp); |
e5619c28 | 3484 | bgp_handle_socket(bgp, vrf, VRF_UNKNOWN, false); |
d62a17ae | 3485 | if (vrf) |
3486 | bgp_vrf_unlink(bgp, vrf); | |
718e3744 | 3487 | |
e2f3a930 T |
3488 | /* Update EVPN VRF pointer */ |
3489 | if (bm->bgp_evpn == bgp) { | |
3490 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
3491 | bgp_set_evpn(NULL); | |
3492 | else | |
3493 | bgp_set_evpn(bgp_get_default()); | |
3494 | } | |
3495 | ||
d62a17ae | 3496 | thread_master_free_unused(bm->master); |
3497 | bgp_unlock(bgp); /* initial reference */ | |
718e3744 | 3498 | |
d62a17ae | 3499 | return 0; |
718e3744 | 3500 | } |
6b0655a2 | 3501 | |
92375c91 | 3502 | void bgp_free(struct bgp *bgp) |
d93f7ffc | 3503 | { |
d62a17ae | 3504 | afi_t afi; |
3505 | safi_t safi; | |
3506 | struct bgp_table *table; | |
3507 | struct bgp_node *rn; | |
f8265580 | 3508 | struct bgp_rmap *rmap; |
d93f7ffc | 3509 | |
d62a17ae | 3510 | QOBJ_UNREG(bgp); |
d93f7ffc | 3511 | |
6a154c88 DL |
3512 | list_delete(&bgp->group); |
3513 | list_delete(&bgp->peer); | |
966f821c | 3514 | |
d62a17ae | 3515 | if (bgp->peerhash) { |
3516 | hash_free(bgp->peerhash); | |
3517 | bgp->peerhash = NULL; | |
3518 | } | |
718e3744 | 3519 | |
05c7a1cc QY |
3520 | FOREACH_AFI_SAFI (afi, safi) { |
3521 | /* Special handling for 2-level routing tables. */ | |
3522 | if (safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP | |
3523 | || safi == SAFI_EVPN) { | |
3524 | for (rn = bgp_table_top(bgp->rib[afi][safi]); rn; | |
3525 | rn = bgp_route_next(rn)) { | |
67009e22 | 3526 | table = bgp_node_get_bgp_table_info(rn); |
05c7a1cc | 3527 | bgp_table_finish(&table); |
d62a17ae | 3528 | } |
d62a17ae | 3529 | } |
05c7a1cc QY |
3530 | if (bgp->route[afi][safi]) |
3531 | bgp_table_finish(&bgp->route[afi][safi]); | |
3532 | if (bgp->aggregate[afi][safi]) | |
3533 | bgp_table_finish(&bgp->aggregate[afi][safi]); | |
3534 | if (bgp->rib[afi][safi]) | |
3535 | bgp_table_finish(&bgp->rib[afi][safi]); | |
3536 | rmap = &bgp->table_map[afi][safi]; | |
0a22ddfb | 3537 | XFREE(MTYPE_ROUTE_MAP_NAME, rmap->name); |
05c7a1cc | 3538 | } |
718e3744 | 3539 | |
d62a17ae | 3540 | bgp_scan_finish(bgp); |
3541 | bgp_address_destroy(bgp); | |
db0e1937 | 3542 | bgp_tip_hash_destroy(bgp); |
966f821c | 3543 | |
92708db6 | 3544 | /* release the auto RD id */ |
3545 | bf_release_index(bm->rd_idspace, bgp->vrf_rd_id); | |
3546 | ||
d62a17ae | 3547 | bgp_evpn_cleanup(bgp); |
a6b07429 | 3548 | bgp_pbr_cleanup(bgp); |
85c8d83b | 3549 | XFREE(MTYPE_BGP_EVPN_INFO, bgp->evpn_info); |
829e590b DS |
3550 | |
3551 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
3552 | vpn_policy_direction_t dir; | |
3553 | ||
3554 | if (bgp->vpn_policy[afi].import_vrf) | |
6a154c88 | 3555 | list_delete(&bgp->vpn_policy[afi].import_vrf); |
829e590b | 3556 | if (bgp->vpn_policy[afi].export_vrf) |
6a154c88 | 3557 | list_delete(&bgp->vpn_policy[afi].export_vrf); |
829e590b DS |
3558 | |
3559 | dir = BGP_VPN_POLICY_DIR_FROMVPN; | |
3560 | if (bgp->vpn_policy[afi].rtlist[dir]) | |
3561 | ecommunity_free(&bgp->vpn_policy[afi].rtlist[dir]); | |
3562 | dir = BGP_VPN_POLICY_DIR_TOVPN; | |
3563 | if (bgp->vpn_policy[afi].rtlist[dir]) | |
3564 | ecommunity_free(&bgp->vpn_policy[afi].rtlist[dir]); | |
3565 | } | |
3566 | ||
0a22ddfb QY |
3567 | XFREE(MTYPE_BGP, bgp->name); |
3568 | XFREE(MTYPE_BGP, bgp->name_pretty); | |
966f821c | 3569 | |
d62a17ae | 3570 | XFREE(MTYPE_BGP, bgp); |
718e3744 | 3571 | } |
3572 | ||
d62a17ae | 3573 | struct peer *peer_lookup_by_conf_if(struct bgp *bgp, const char *conf_if) |
718e3744 | 3574 | { |
d62a17ae | 3575 | struct peer *peer; |
3576 | struct listnode *node, *nnode; | |
966f821c | 3577 | |
d62a17ae | 3578 | if (!conf_if) |
3579 | return NULL; | |
6b0655a2 | 3580 | |
d62a17ae | 3581 | if (bgp != NULL) { |
3582 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
3583 | if (peer->conf_if && !strcmp(peer->conf_if, conf_if) | |
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->conf_if | |
3593 | && !strcmp(peer->conf_if, conf_if) | |
3594 | && !CHECK_FLAG(peer->sflags, | |
3595 | PEER_STATUS_ACCEPT_PEER)) | |
3596 | return peer; | |
3597 | } | |
3598 | return NULL; | |
718e3744 | 3599 | } |
3600 | ||
d62a17ae | 3601 | struct peer *peer_lookup_by_hostname(struct bgp *bgp, const char *hostname) |
718e3744 | 3602 | { |
d62a17ae | 3603 | struct peer *peer; |
3604 | struct listnode *node, *nnode; | |
6b0655a2 | 3605 | |
d62a17ae | 3606 | if (!hostname) |
3607 | return NULL; | |
6b0655a2 | 3608 | |
d62a17ae | 3609 | if (bgp != NULL) { |
3610 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
3611 | if (peer->hostname && !strcmp(peer->hostname, hostname) | |
3612 | && !CHECK_FLAG(peer->sflags, | |
3613 | PEER_STATUS_ACCEPT_PEER)) | |
3614 | return peer; | |
3615 | } else if (bm->bgp != NULL) { | |
3616 | struct listnode *bgpnode, *nbgpnode; | |
3617 | ||
3618 | for (ALL_LIST_ELEMENTS(bm->bgp, bgpnode, nbgpnode, bgp)) | |
3619 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
3620 | if (peer->hostname | |
3621 | && !strcmp(peer->hostname, hostname) | |
3622 | && !CHECK_FLAG(peer->sflags, | |
3623 | PEER_STATUS_ACCEPT_PEER)) | |
3624 | return peer; | |
3625 | } | |
3626 | return NULL; | |
3627 | } | |
3628 | ||
3629 | struct peer *peer_lookup(struct bgp *bgp, union sockunion *su) | |
3630 | { | |
3631 | struct peer *peer = NULL; | |
3632 | struct peer tmp_peer; | |
3633 | ||
3634 | memset(&tmp_peer, 0, sizeof(struct peer)); | |
3635 | ||
3636 | /* | |
3637 | * We do not want to find the doppelganger peer so search for the peer | |
3638 | * in | |
3639 | * the hash that has PEER_FLAG_CONFIG_NODE | |
3640 | */ | |
3641 | SET_FLAG(tmp_peer.flags, PEER_FLAG_CONFIG_NODE); | |
3642 | ||
3643 | tmp_peer.su = *su; | |
3644 | ||
3645 | if (bgp != NULL) { | |
3646 | peer = hash_lookup(bgp->peerhash, &tmp_peer); | |
3647 | } else if (bm->bgp != NULL) { | |
3648 | struct listnode *bgpnode, *nbgpnode; | |
3649 | ||
3650 | for (ALL_LIST_ELEMENTS(bm->bgp, bgpnode, nbgpnode, bgp)) { | |
d62a17ae | 3651 | peer = hash_lookup(bgp->peerhash, &tmp_peer); |
d62a17ae | 3652 | if (peer) |
3653 | break; | |
3654 | } | |
3655 | } | |
3656 | ||
3657 | return peer; | |
3658 | } | |
3659 | ||
3660 | struct peer *peer_create_bind_dynamic_neighbor(struct bgp *bgp, | |
3661 | union sockunion *su, | |
3662 | struct peer_group *group) | |
3663 | { | |
3664 | struct peer *peer; | |
3665 | afi_t afi; | |
3666 | safi_t safi; | |
3667 | ||
3668 | /* Create peer first; we've already checked group config is valid. */ | |
3669 | peer = peer_create(su, NULL, bgp, bgp->as, group->conf->as, | |
3670 | group->conf->as_type, 0, 0, group); | |
3671 | if (!peer) | |
3672 | return NULL; | |
3673 | ||
3674 | /* Link to group */ | |
3675 | peer = peer_lock(peer); | |
3676 | listnode_add(group->peer, peer); | |
3677 | ||
3678 | peer_group2peer_config_copy(group, peer); | |
3679 | ||
3680 | /* | |
3681 | * Bind peer for all AFs configured for the group. We don't call | |
3682 | * peer_group_bind as that is sub-optimal and does some stuff we don't | |
3683 | * want. | |
3684 | */ | |
05c7a1cc QY |
3685 | FOREACH_AFI_SAFI (afi, safi) { |
3686 | if (!group->conf->afc[afi][safi]) | |
3687 | continue; | |
3688 | peer->afc[afi][safi] = 1; | |
d62a17ae | 3689 | |
05c7a1cc QY |
3690 | if (!peer_af_find(peer, afi, safi)) |
3691 | peer_af_create(peer, afi, safi); | |
d62a17ae | 3692 | |
05c7a1cc QY |
3693 | peer_group2peer_config_copy_af(group, peer, afi, safi); |
3694 | } | |
d62a17ae | 3695 | |
3696 | /* Mark as dynamic, but also as a "config node" for other things to | |
3697 | * work. */ | |
3698 | SET_FLAG(peer->flags, PEER_FLAG_DYNAMIC_NEIGHBOR); | |
3699 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); | |
3700 | ||
3701 | return peer; | |
3702 | } | |
3703 | ||
3704 | struct prefix * | |
3705 | peer_group_lookup_dynamic_neighbor_range(struct peer_group *group, | |
3706 | struct prefix *prefix) | |
3707 | { | |
3708 | struct listnode *node, *nnode; | |
3709 | struct prefix *range; | |
3710 | afi_t afi; | |
3711 | ||
3712 | afi = family2afi(prefix->family); | |
3713 | ||
3714 | if (group->listen_range[afi]) | |
3715 | for (ALL_LIST_ELEMENTS(group->listen_range[afi], node, nnode, | |
3716 | range)) | |
3717 | if (prefix_match(range, prefix)) | |
3718 | return range; | |
3719 | ||
3720 | return NULL; | |
3721 | } | |
3722 | ||
3723 | struct peer_group * | |
3724 | peer_group_lookup_dynamic_neighbor(struct bgp *bgp, struct prefix *prefix, | |
3725 | struct prefix **listen_range) | |
3726 | { | |
3727 | struct prefix *range = NULL; | |
3728 | struct peer_group *group = NULL; | |
3729 | struct listnode *node, *nnode; | |
3730 | ||
3731 | *listen_range = NULL; | |
3732 | if (bgp != NULL) { | |
3733 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) | |
3734 | if ((range = peer_group_lookup_dynamic_neighbor_range( | |
3735 | group, prefix))) | |
3736 | break; | |
3737 | } else if (bm->bgp != NULL) { | |
3738 | struct listnode *bgpnode, *nbgpnode; | |
3739 | ||
3740 | for (ALL_LIST_ELEMENTS(bm->bgp, bgpnode, nbgpnode, bgp)) | |
3741 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) | |
3742 | if ((range = peer_group_lookup_dynamic_neighbor_range( | |
3743 | group, prefix))) | |
3744 | goto found_range; | |
3745 | } | |
3746 | ||
3747 | found_range: | |
3748 | *listen_range = range; | |
3749 | return (group && range) ? group : NULL; | |
3750 | } | |
3751 | ||
3752 | struct peer *peer_lookup_dynamic_neighbor(struct bgp *bgp, union sockunion *su) | |
3753 | { | |
3754 | struct peer_group *group; | |
3755 | struct bgp *gbgp; | |
3756 | struct peer *peer; | |
3757 | struct prefix prefix; | |
3758 | struct prefix *listen_range; | |
3759 | int dncount; | |
3760 | char buf[PREFIX2STR_BUFFER]; | |
3761 | char buf1[PREFIX2STR_BUFFER]; | |
3762 | ||
3763 | sockunion2hostprefix(su, &prefix); | |
3764 | ||
3765 | /* See if incoming connection matches a configured listen range. */ | |
3766 | group = peer_group_lookup_dynamic_neighbor(bgp, &prefix, &listen_range); | |
3767 | ||
3768 | if (!group) | |
3769 | return NULL; | |
3770 | ||
3771 | ||
3772 | gbgp = group->bgp; | |
3773 | ||
3774 | if (!gbgp) | |
3775 | return NULL; | |
3776 | ||
3777 | prefix2str(&prefix, buf, sizeof(buf)); | |
3778 | prefix2str(listen_range, buf1, sizeof(buf1)); | |
3779 | ||
3780 | if (bgp_debug_neighbor_events(NULL)) | |
3781 | zlog_debug( | |
3782 | "Dynamic Neighbor %s matches group %s listen range %s", | |
3783 | buf, group->name, buf1); | |
3784 | ||
3785 | /* Are we within the listen limit? */ | |
3786 | dncount = gbgp->dynamic_neighbors_count; | |
3787 | ||
3788 | if (dncount >= gbgp->dynamic_neighbors_limit) { | |
3789 | if (bgp_debug_neighbor_events(NULL)) | |
3790 | zlog_debug("Dynamic Neighbor %s rejected - at limit %d", | |
3791 | inet_sutop(su, buf), | |
3792 | gbgp->dynamic_neighbors_limit); | |
3793 | return NULL; | |
3794 | } | |
3795 | ||
3796 | /* Ensure group is not disabled. */ | |
3797 | if (CHECK_FLAG(group->conf->flags, PEER_FLAG_SHUTDOWN)) { | |
3798 | if (bgp_debug_neighbor_events(NULL)) | |
3799 | zlog_debug( | |
3800 | "Dynamic Neighbor %s rejected - group %s disabled", | |
3801 | buf, group->name); | |
3802 | return NULL; | |
3803 | } | |
3804 | ||
3805 | /* Check that at least one AF is activated for the group. */ | |
3806 | if (!peer_group_af_configured(group)) { | |
3807 | if (bgp_debug_neighbor_events(NULL)) | |
3808 | zlog_debug( | |
3809 | "Dynamic Neighbor %s rejected - no AF activated for group %s", | |
3810 | buf, group->name); | |
3811 | return NULL; | |
3812 | } | |
3813 | ||
3814 | /* Create dynamic peer and bind to associated group. */ | |
3815 | peer = peer_create_bind_dynamic_neighbor(gbgp, su, group); | |
3816 | assert(peer); | |
3817 | ||
3818 | gbgp->dynamic_neighbors_count = ++dncount; | |
3819 | ||
3820 | if (bgp_debug_neighbor_events(peer)) | |
3821 | zlog_debug("%s Dynamic Neighbor added, group %s count %d", | |
3822 | peer->host, group->name, dncount); | |
3823 | ||
3824 | return peer; | |
3825 | } | |
3826 | ||
cc32742c | 3827 | static void peer_drop_dynamic_neighbor(struct peer *peer) |
d62a17ae | 3828 | { |
3829 | int dncount = -1; | |
cc32742c | 3830 | if (peer->group->bgp) { |
d62a17ae | 3831 | dncount = peer->group->bgp->dynamic_neighbors_count; |
3832 | if (dncount) | |
3833 | peer->group->bgp->dynamic_neighbors_count = --dncount; | |
3834 | } | |
3835 | if (bgp_debug_neighbor_events(peer)) | |
3836 | zlog_debug("%s dropped from group %s, count %d", peer->host, | |
3837 | peer->group->name, dncount); | |
3838 | } | |
3839 | ||
d62a17ae | 3840 | /* If peer is configured at least one address family return 1. */ |
3841 | int peer_active(struct peer *peer) | |
3842 | { | |
3843 | if (BGP_PEER_SU_UNSPEC(peer)) | |
3844 | return 0; | |
3845 | if (peer->afc[AFI_IP][SAFI_UNICAST] || peer->afc[AFI_IP][SAFI_MULTICAST] | |
3846 | || peer->afc[AFI_IP][SAFI_LABELED_UNICAST] | |
3847 | || peer->afc[AFI_IP][SAFI_MPLS_VPN] || peer->afc[AFI_IP][SAFI_ENCAP] | |
7c40bf39 | 3848 | || peer->afc[AFI_IP][SAFI_FLOWSPEC] |
d62a17ae | 3849 | || peer->afc[AFI_IP6][SAFI_UNICAST] |
3850 | || peer->afc[AFI_IP6][SAFI_MULTICAST] | |
3851 | || peer->afc[AFI_IP6][SAFI_LABELED_UNICAST] | |
3852 | || peer->afc[AFI_IP6][SAFI_MPLS_VPN] | |
3853 | || peer->afc[AFI_IP6][SAFI_ENCAP] | |
7c40bf39 | 3854 | || peer->afc[AFI_IP6][SAFI_FLOWSPEC] |
d62a17ae | 3855 | || peer->afc[AFI_L2VPN][SAFI_EVPN]) |
3856 | return 1; | |
3857 | return 0; | |
3858 | } | |
3859 | ||
3860 | /* If peer is negotiated at least one address family return 1. */ | |
3861 | int peer_active_nego(struct peer *peer) | |
3862 | { | |
3863 | if (peer->afc_nego[AFI_IP][SAFI_UNICAST] | |
3864 | || peer->afc_nego[AFI_IP][SAFI_MULTICAST] | |
3865 | || peer->afc_nego[AFI_IP][SAFI_LABELED_UNICAST] | |
3866 | || peer->afc_nego[AFI_IP][SAFI_MPLS_VPN] | |
3867 | || peer->afc_nego[AFI_IP][SAFI_ENCAP] | |
7c40bf39 | 3868 | || peer->afc_nego[AFI_IP][SAFI_FLOWSPEC] |
d62a17ae | 3869 | || peer->afc_nego[AFI_IP6][SAFI_UNICAST] |
3870 | || peer->afc_nego[AFI_IP6][SAFI_MULTICAST] | |
3871 | || peer->afc_nego[AFI_IP6][SAFI_LABELED_UNICAST] | |
3872 | || peer->afc_nego[AFI_IP6][SAFI_MPLS_VPN] | |
3873 | || peer->afc_nego[AFI_IP6][SAFI_ENCAP] | |
7c40bf39 | 3874 | || peer->afc_nego[AFI_IP6][SAFI_FLOWSPEC] |
d62a17ae | 3875 | || peer->afc_nego[AFI_L2VPN][SAFI_EVPN]) |
3876 | return 1; | |
3877 | return 0; | |
3878 | } | |
3879 | ||
dcc68b5e | 3880 | void peer_change_action(struct peer *peer, afi_t afi, safi_t safi, |
d62a17ae | 3881 | enum peer_change_type type) |
3882 | { | |
3883 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
3884 | return; | |
3885 | ||
3886 | if (peer->status != Established) | |
3887 | return; | |
3888 | ||
3889 | if (type == peer_change_reset) { | |
3890 | /* If we're resetting session, we've to delete both peer struct | |
3891 | */ | |
3892 | if ((peer->doppelganger) | |
3893 | && (peer->doppelganger->status != Deleted) | |
3894 | && (!CHECK_FLAG(peer->doppelganger->flags, | |
3895 | PEER_FLAG_CONFIG_NODE))) | |
3896 | peer_delete(peer->doppelganger); | |
3897 | ||
3898 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3899 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
3900 | } else if (type == peer_change_reset_in) { | |
3901 | if (CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_OLD_RCV) | |
3902 | || CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_NEW_RCV)) | |
3903 | bgp_route_refresh_send(peer, afi, safi, 0, 0, 0); | |
3904 | else { | |
3905 | if ((peer->doppelganger) | |
3906 | && (peer->doppelganger->status != Deleted) | |
3907 | && (!CHECK_FLAG(peer->doppelganger->flags, | |
3908 | PEER_FLAG_CONFIG_NODE))) | |
3909 | peer_delete(peer->doppelganger); | |
3910 | ||
3911 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3912 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
3913 | } | |
3914 | } else if (type == peer_change_reset_out) { | |
3915 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
3916 | bgp_announce_route(peer, afi, safi); | |
3917 | } | |
3918 | } | |
3919 | ||
3920 | struct peer_flag_action { | |
3921 | /* Peer's flag. */ | |
d7c0a89a | 3922 | uint32_t flag; |
d62a17ae | 3923 | |
3924 | /* This flag can be set for peer-group member. */ | |
d7c0a89a | 3925 | uint8_t not_for_member; |
d62a17ae | 3926 | |
3927 | /* Action when the flag is changed. */ | |
3928 | enum peer_change_type type; | |
d62a17ae | 3929 | }; |
3930 | ||
3931 | static const struct peer_flag_action peer_flag_action_list[] = { | |
3932 | {PEER_FLAG_PASSIVE, 0, peer_change_reset}, | |
3933 | {PEER_FLAG_SHUTDOWN, 0, peer_change_reset}, | |
3934 | {PEER_FLAG_DONT_CAPABILITY, 0, peer_change_none}, | |
3935 | {PEER_FLAG_OVERRIDE_CAPABILITY, 0, peer_change_none}, | |
3936 | {PEER_FLAG_STRICT_CAP_MATCH, 0, peer_change_none}, | |
3937 | {PEER_FLAG_DYNAMIC_CAPABILITY, 0, peer_change_reset}, | |
3938 | {PEER_FLAG_DISABLE_CONNECTED_CHECK, 0, peer_change_reset}, | |
3939 | {PEER_FLAG_CAPABILITY_ENHE, 0, peer_change_reset}, | |
47cbc09b | 3940 | {PEER_FLAG_ENFORCE_FIRST_AS, 0, peer_change_reset_in}, |
afad5ced | 3941 | {PEER_FLAG_IFPEER_V6ONLY, 0, peer_change_reset}, |
b90a8e13 PM |
3942 | {PEER_FLAG_ROUTEADV, 0, peer_change_none}, |
3943 | {PEER_FLAG_TIMER, 0, peer_change_none}, | |
3944 | {PEER_FLAG_TIMER_CONNECT, 0, peer_change_none}, | |
a14810f4 PM |
3945 | {PEER_FLAG_PASSWORD, 0, peer_change_none}, |
3946 | {PEER_FLAG_LOCAL_AS, 0, peer_change_none}, | |
3947 | {PEER_FLAG_LOCAL_AS_NO_PREPEND, 0, peer_change_none}, | |
3948 | {PEER_FLAG_LOCAL_AS_REPLACE_AS, 0, peer_change_none}, | |
3949 | {PEER_FLAG_UPDATE_SOURCE, 0, peer_change_none}, | |
d62a17ae | 3950 | {0, 0, 0}}; |
3951 | ||
3952 | static const struct peer_flag_action peer_af_flag_action_list[] = { | |
3953 | {PEER_FLAG_SEND_COMMUNITY, 1, peer_change_reset_out}, | |
3954 | {PEER_FLAG_SEND_EXT_COMMUNITY, 1, peer_change_reset_out}, | |
3955 | {PEER_FLAG_SEND_LARGE_COMMUNITY, 1, peer_change_reset_out}, | |
3956 | {PEER_FLAG_NEXTHOP_SELF, 1, peer_change_reset_out}, | |
3957 | {PEER_FLAG_REFLECTOR_CLIENT, 1, peer_change_reset}, | |
3958 | {PEER_FLAG_RSERVER_CLIENT, 1, peer_change_reset}, | |
3959 | {PEER_FLAG_SOFT_RECONFIG, 0, peer_change_reset_in}, | |
3960 | {PEER_FLAG_AS_PATH_UNCHANGED, 1, peer_change_reset_out}, | |
3961 | {PEER_FLAG_NEXTHOP_UNCHANGED, 1, peer_change_reset_out}, | |
3962 | {PEER_FLAG_MED_UNCHANGED, 1, peer_change_reset_out}, | |
598ce6bd | 3963 | {PEER_FLAG_DEFAULT_ORIGINATE, 0, peer_change_none}, |
d62a17ae | 3964 | {PEER_FLAG_REMOVE_PRIVATE_AS, 1, peer_change_reset_out}, |
3965 | {PEER_FLAG_ALLOWAS_IN, 0, peer_change_reset_in}, | |
3966 | {PEER_FLAG_ALLOWAS_IN_ORIGIN, 0, peer_change_reset_in}, | |
3967 | {PEER_FLAG_ORF_PREFIX_SM, 1, peer_change_reset}, | |
3968 | {PEER_FLAG_ORF_PREFIX_RM, 1, peer_change_reset}, | |
598ce6bd PM |
3969 | {PEER_FLAG_MAX_PREFIX, 0, peer_change_none}, |
3970 | {PEER_FLAG_MAX_PREFIX_WARNING, 0, peer_change_none}, | |
d62a17ae | 3971 | {PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED, 0, peer_change_reset_out}, |
3972 | {PEER_FLAG_FORCE_NEXTHOP_SELF, 1, peer_change_reset_out}, | |
3973 | {PEER_FLAG_REMOVE_PRIVATE_AS_ALL, 1, peer_change_reset_out}, | |
3974 | {PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE, 1, peer_change_reset_out}, | |
3975 | {PEER_FLAG_AS_OVERRIDE, 1, peer_change_reset_out}, | |
3976 | {PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE, 1, peer_change_reset_out}, | |
d62a17ae | 3977 | {PEER_FLAG_WEIGHT, 0, peer_change_reset_in}, |
3978 | {0, 0, 0}}; | |
3979 | ||
3980 | /* Proper action set. */ | |
3981 | static int peer_flag_action_set(const struct peer_flag_action *action_list, | |
3982 | int size, struct peer_flag_action *action, | |
d7c0a89a | 3983 | uint32_t flag) |
d62a17ae | 3984 | { |
3985 | int i; | |
3986 | int found = 0; | |
3987 | int reset_in = 0; | |
3988 | int reset_out = 0; | |
3989 | const struct peer_flag_action *match = NULL; | |
3990 | ||
3991 | /* Check peer's frag action. */ | |
3992 | for (i = 0; i < size; i++) { | |
3993 | match = &action_list[i]; | |
3994 | ||
3995 | if (match->flag == 0) | |
3996 | break; | |
3997 | ||
3998 | if (match->flag & flag) { | |
3999 | found = 1; | |
4000 | ||
4001 | if (match->type == peer_change_reset_in) | |
4002 | reset_in = 1; | |
4003 | if (match->type == peer_change_reset_out) | |
4004 | reset_out = 1; | |
4005 | if (match->type == peer_change_reset) { | |
4006 | reset_in = 1; | |
4007 | reset_out = 1; | |
4008 | } | |
4009 | if (match->not_for_member) | |
4010 | action->not_for_member = 1; | |
4011 | } | |
4012 | } | |
4013 | ||
4014 | /* Set peer clear type. */ | |
4015 | if (reset_in && reset_out) | |
4016 | action->type = peer_change_reset; | |
4017 | else if (reset_in) | |
4018 | action->type = peer_change_reset_in; | |
4019 | else if (reset_out) | |
4020 | action->type = peer_change_reset_out; | |
4021 | else | |
4022 | action->type = peer_change_none; | |
4023 | ||
4024 | return found; | |
4025 | } | |
4026 | ||
d7c0a89a | 4027 | static void peer_flag_modify_action(struct peer *peer, uint32_t flag) |
d62a17ae | 4028 | { |
4029 | if (flag == PEER_FLAG_SHUTDOWN) { | |
4030 | if (CHECK_FLAG(peer->flags, flag)) { | |
4031 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT)) | |
4032 | peer_nsf_stop(peer); | |
4033 | ||
4034 | UNSET_FLAG(peer->sflags, PEER_STATUS_PREFIX_OVERFLOW); | |
4035 | if (peer->t_pmax_restart) { | |
4036 | BGP_TIMER_OFF(peer->t_pmax_restart); | |
4037 | if (bgp_debug_neighbor_events(peer)) | |
4038 | zlog_debug( | |
4039 | "%s Maximum-prefix restart timer canceled", | |
4040 | peer->host); | |
4041 | } | |
4042 | ||
4043 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT)) | |
4044 | peer_nsf_stop(peer); | |
4045 | ||
4046 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
4047 | char *msg = peer->tx_shutdown_message; | |
4048 | size_t msglen; | |
4049 | ||
4050 | if (!msg && peer_group_active(peer)) | |
4051 | msg = peer->group->conf | |
4052 | ->tx_shutdown_message; | |
4053 | msglen = msg ? strlen(msg) : 0; | |
4054 | if (msglen > 128) | |
4055 | msglen = 128; | |
4056 | ||
4057 | if (msglen) { | |
d7c0a89a | 4058 | uint8_t msgbuf[129]; |
d62a17ae | 4059 | |
4060 | msgbuf[0] = msglen; | |
4061 | memcpy(msgbuf + 1, msg, msglen); | |
4062 | ||
4063 | bgp_notify_send_with_data( | |
4064 | peer, BGP_NOTIFY_CEASE, | |
4065 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN, | |
4066 | msgbuf, msglen + 1); | |
4067 | } else | |
4068 | bgp_notify_send( | |
4069 | peer, BGP_NOTIFY_CEASE, | |
4070 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN); | |
4071 | } else | |
4072 | bgp_session_reset(peer); | |
4073 | } else { | |
4074 | peer->v_start = BGP_INIT_START_TIMER; | |
4075 | BGP_EVENT_ADD(peer, BGP_Stop); | |
4076 | } | |
4077 | } else if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
4078 | if (flag == PEER_FLAG_DYNAMIC_CAPABILITY) | |
4079 | peer->last_reset = PEER_DOWN_CAPABILITY_CHANGE; | |
4080 | else if (flag == PEER_FLAG_PASSIVE) | |
4081 | peer->last_reset = PEER_DOWN_PASSIVE_CHANGE; | |
4082 | else if (flag == PEER_FLAG_DISABLE_CONNECTED_CHECK) | |
4083 | peer->last_reset = PEER_DOWN_MULTIHOP_CHANGE; | |
4084 | ||
4085 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4086 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4087 | } else | |
4088 | bgp_session_reset(peer); | |
4089 | } | |
4090 | ||
4091 | /* Change specified peer flag. */ | |
d7c0a89a | 4092 | static int peer_flag_modify(struct peer *peer, uint32_t flag, int set) |
d62a17ae | 4093 | { |
4094 | int found; | |
4095 | int size; | |
9fb964de PM |
4096 | bool invert, member_invert; |
4097 | struct peer *member; | |
d62a17ae | 4098 | struct listnode *node, *nnode; |
4099 | struct peer_flag_action action; | |
4100 | ||
4101 | memset(&action, 0, sizeof(struct peer_flag_action)); | |
4102 | size = sizeof peer_flag_action_list / sizeof(struct peer_flag_action); | |
4103 | ||
9fb964de | 4104 | invert = CHECK_FLAG(peer->flags_invert, flag); |
d62a17ae | 4105 | found = peer_flag_action_set(peer_flag_action_list, size, &action, |
4106 | flag); | |
4107 | ||
9fb964de | 4108 | /* Abort if no flag action exists. */ |
d62a17ae | 4109 | if (!found) |
4110 | return BGP_ERR_INVALID_FLAG; | |
4111 | ||
9fb964de | 4112 | /* Check for flag conflict: STRICT_CAP_MATCH && OVERRIDE_CAPABILITY */ |
d62a17ae | 4113 | if (set && CHECK_FLAG(peer->flags | flag, PEER_FLAG_STRICT_CAP_MATCH) |
4114 | && CHECK_FLAG(peer->flags | flag, PEER_FLAG_OVERRIDE_CAPABILITY)) | |
4115 | return BGP_ERR_PEER_FLAG_CONFLICT; | |
4116 | ||
9fb964de | 4117 | /* Handle flag updates where desired state matches current state. */ |
d62a17ae | 4118 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
9fb964de PM |
4119 | if (set && CHECK_FLAG(peer->flags, flag)) { |
4120 | COND_FLAG(peer->flags_override, flag, !invert); | |
d62a17ae | 4121 | return 0; |
9fb964de PM |
4122 | } |
4123 | ||
4124 | if (!set && !CHECK_FLAG(peer->flags, flag)) { | |
4125 | COND_FLAG(peer->flags_override, flag, invert); | |
d62a17ae | 4126 | return 0; |
9fb964de | 4127 | } |
d62a17ae | 4128 | } |
4129 | ||
9fb964de PM |
4130 | /* Inherit from peer-group or set/unset flags accordingly. */ |
4131 | if (peer_group_active(peer) && set == invert) | |
4132 | peer_flag_inherit(peer, flag); | |
d62a17ae | 4133 | else |
9fb964de | 4134 | COND_FLAG(peer->flags, flag, set); |
d62a17ae | 4135 | |
9fb964de | 4136 | /* Check if handling a regular peer. */ |
d62a17ae | 4137 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
9fb964de PM |
4138 | /* Update flag override state accordingly. */ |
4139 | COND_FLAG(peer->flags_override, flag, set != invert); | |
4140 | ||
4141 | /* Execute flag action on peer. */ | |
d62a17ae | 4142 | if (action.type == peer_change_reset) |
4143 | peer_flag_modify_action(peer, flag); | |
4144 | ||
9fb964de | 4145 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 4146 | return 0; |
4147 | } | |
4148 | ||
1ea03b90 DS |
4149 | if (set && flag == PEER_FLAG_CAPABILITY_ENHE) |
4150 | bgp_nht_register_enhe_capability_interfaces(peer); | |
4151 | ||
9fb964de PM |
4152 | /* |
4153 | * Update peer-group members, unless they are explicitely overriding | |
4154 | * peer-group configuration. | |
4155 | */ | |
4156 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4157 | /* Skip peers with overridden configuration. */ | |
4158 | if (CHECK_FLAG(member->flags_override, flag)) | |
4159 | continue; | |
d62a17ae | 4160 | |
527de3dc PM |
4161 | /* Check if only member without group is inverted. */ |
4162 | member_invert = | |
4163 | CHECK_FLAG(member->flags_invert, flag) && !invert; | |
d62a17ae | 4164 | |
9fb964de PM |
4165 | /* Skip peers with equivalent configuration. */ |
4166 | if (set != member_invert && CHECK_FLAG(member->flags, flag)) | |
d62a17ae | 4167 | continue; |
4168 | ||
9fb964de | 4169 | if (set == member_invert && !CHECK_FLAG(member->flags, flag)) |
d62a17ae | 4170 | continue; |
4171 | ||
9fb964de PM |
4172 | /* Update flag on peer-group member. */ |
4173 | COND_FLAG(member->flags, flag, set != member_invert); | |
d62a17ae | 4174 | |
1ea03b90 DS |
4175 | if (set && flag == PEER_FLAG_CAPABILITY_ENHE) |
4176 | bgp_nht_register_enhe_capability_interfaces(member); | |
4177 | ||
9fb964de | 4178 | /* Execute flag action on peer-group member. */ |
d62a17ae | 4179 | if (action.type == peer_change_reset) |
9fb964de | 4180 | peer_flag_modify_action(member, flag); |
d62a17ae | 4181 | } |
9fb964de | 4182 | |
d62a17ae | 4183 | return 0; |
4184 | } | |
4185 | ||
d7c0a89a | 4186 | int peer_flag_set(struct peer *peer, uint32_t flag) |
d62a17ae | 4187 | { |
4188 | return peer_flag_modify(peer, flag, 1); | |
4189 | } | |
4190 | ||
d7c0a89a | 4191 | int peer_flag_unset(struct peer *peer, uint32_t flag) |
d62a17ae | 4192 | { |
4193 | return peer_flag_modify(peer, flag, 0); | |
4194 | } | |
4195 | ||
4196 | static int peer_af_flag_modify(struct peer *peer, afi_t afi, safi_t safi, | |
27c05d4d | 4197 | uint32_t flag, bool set) |
d62a17ae | 4198 | { |
4199 | int found; | |
4200 | int size; | |
527de3dc | 4201 | bool invert, member_invert; |
527de3dc | 4202 | struct peer *member; |
d62a17ae | 4203 | struct listnode *node, *nnode; |
d62a17ae | 4204 | struct peer_flag_action action; |
d62a17ae | 4205 | |
4206 | memset(&action, 0, sizeof(struct peer_flag_action)); | |
4207 | size = sizeof peer_af_flag_action_list | |
4208 | / sizeof(struct peer_flag_action); | |
4209 | ||
27c05d4d | 4210 | invert = CHECK_FLAG(peer->af_flags_invert[afi][safi], flag); |
d62a17ae | 4211 | found = peer_flag_action_set(peer_af_flag_action_list, size, &action, |
4212 | flag); | |
4213 | ||
527de3dc | 4214 | /* Abort if flag action exists. */ |
d62a17ae | 4215 | if (!found) |
4216 | return BGP_ERR_INVALID_FLAG; | |
4217 | ||
4218 | /* Special check for reflector client. */ | |
4219 | if (flag & PEER_FLAG_REFLECTOR_CLIENT | |
4220 | && peer_sort(peer) != BGP_PEER_IBGP) | |
4221 | return BGP_ERR_NOT_INTERNAL_PEER; | |
4222 | ||
4223 | /* Special check for remove-private-AS. */ | |
4224 | if (flag & PEER_FLAG_REMOVE_PRIVATE_AS | |
4225 | && peer_sort(peer) == BGP_PEER_IBGP) | |
4226 | return BGP_ERR_REMOVE_PRIVATE_AS; | |
4227 | ||
4228 | /* as-override is not allowed for IBGP peers */ | |
4229 | if (flag & PEER_FLAG_AS_OVERRIDE && peer_sort(peer) == BGP_PEER_IBGP) | |
4230 | return BGP_ERR_AS_OVERRIDE; | |
4231 | ||
527de3dc | 4232 | /* Handle flag updates where desired state matches current state. */ |
d62a17ae | 4233 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
598ce6bd | 4234 | if (set && CHECK_FLAG(peer->af_flags[afi][safi], flag)) { |
527de3dc PM |
4235 | COND_FLAG(peer->af_flags_override[afi][safi], flag, |
4236 | !invert); | |
d62a17ae | 4237 | return 0; |
598ce6bd PM |
4238 | } |
4239 | ||
4240 | if (!set && !CHECK_FLAG(peer->af_flags[afi][safi], flag)) { | |
527de3dc PM |
4241 | COND_FLAG(peer->af_flags_override[afi][safi], flag, |
4242 | invert); | |
d62a17ae | 4243 | return 0; |
598ce6bd | 4244 | } |
d62a17ae | 4245 | } |
4246 | ||
ace295a9 MK |
4247 | /* |
4248 | * For EVPN we implicitly set the NEXTHOP_UNCHANGED flag, | |
4249 | * if we are setting/unsetting flags which conflict with this flag | |
4250 | * handle accordingly | |
4251 | */ | |
4252 | if (afi == AFI_L2VPN && safi == SAFI_EVPN) { | |
4253 | if (set) { | |
4254 | ||
3518f352 DS |
4255 | /* |
4256 | * if we are setting NEXTHOP_SELF, we need to unset the | |
4257 | * NEXTHOP_UNCHANGED flag | |
4258 | */ | |
ace295a9 MK |
4259 | if (CHECK_FLAG(flag, PEER_FLAG_NEXTHOP_SELF) || |
4260 | CHECK_FLAG(flag, PEER_FLAG_FORCE_NEXTHOP_SELF)) | |
4261 | UNSET_FLAG(peer->af_flags[afi][safi], | |
4262 | PEER_FLAG_NEXTHOP_UNCHANGED); | |
4263 | } else { | |
4264 | ||
3518f352 DS |
4265 | /* |
4266 | * if we are unsetting NEXTHOP_SELF, we need to set the | |
ace295a9 MK |
4267 | * NEXTHOP_UNCHANGED flag to reset the defaults for EVPN |
4268 | */ | |
4269 | if (CHECK_FLAG(flag, PEER_FLAG_NEXTHOP_SELF) || | |
4270 | CHECK_FLAG(flag, PEER_FLAG_FORCE_NEXTHOP_SELF)) | |
4271 | SET_FLAG(peer->af_flags[afi][safi], | |
4272 | PEER_FLAG_NEXTHOP_UNCHANGED); | |
4273 | } | |
4274 | } | |
4275 | ||
527de3dc PM |
4276 | /* Inherit from peer-group or set/unset flags accordingly. */ |
4277 | if (peer_group_active(peer) && set == invert) | |
4278 | peer_af_flag_inherit(peer, afi, safi, flag); | |
4279 | else | |
4280 | COND_FLAG(peer->af_flags[afi][safi], flag, set); | |
d62a17ae | 4281 | |
4282 | /* Execute action when peer is established. */ | |
4283 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP) | |
4284 | && peer->status == Established) { | |
4285 | if (!set && flag == PEER_FLAG_SOFT_RECONFIG) | |
4286 | bgp_clear_adj_in(peer, afi, safi); | |
4287 | else { | |
4288 | if (flag == PEER_FLAG_REFLECTOR_CLIENT) | |
4289 | peer->last_reset = PEER_DOWN_RR_CLIENT_CHANGE; | |
4290 | else if (flag == PEER_FLAG_RSERVER_CLIENT) | |
4291 | peer->last_reset = PEER_DOWN_RS_CLIENT_CHANGE; | |
4292 | else if (flag == PEER_FLAG_ORF_PREFIX_SM) | |
4293 | peer->last_reset = PEER_DOWN_CAPABILITY_CHANGE; | |
4294 | else if (flag == PEER_FLAG_ORF_PREFIX_RM) | |
4295 | peer->last_reset = PEER_DOWN_CAPABILITY_CHANGE; | |
4296 | ||
4297 | peer_change_action(peer, afi, safi, action.type); | |
4298 | } | |
4299 | } | |
4300 | ||
527de3dc PM |
4301 | /* Check if handling a regular peer. */ |
4302 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4303 | COND_FLAG(peer->af_flags_override[afi][safi], flag, | |
4304 | set != invert); | |
4305 | } else { | |
4306 | /* | |
4307 | * Update peer-group members, unless they are explicitely | |
4308 | * overriding peer-group configuration. | |
4309 | */ | |
4310 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, | |
4311 | member)) { | |
4312 | /* Skip peers with overridden configuration. */ | |
4313 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
598ce6bd PM |
4314 | flag)) |
4315 | continue; | |
4316 | ||
527de3dc PM |
4317 | /* Check if only member without group is inverted. */ |
4318 | member_invert = | |
4319 | CHECK_FLAG(member->af_flags_invert[afi][safi], | |
4320 | flag) | |
4321 | && !invert; | |
4322 | ||
4323 | /* Skip peers with equivalent configuration. */ | |
4324 | if (set != member_invert | |
4325 | && CHECK_FLAG(member->af_flags[afi][safi], flag)) | |
d62a17ae | 4326 | continue; |
4327 | ||
527de3dc PM |
4328 | if (set == member_invert |
4329 | && !CHECK_FLAG(member->af_flags[afi][safi], flag)) | |
d62a17ae | 4330 | continue; |
4331 | ||
527de3dc PM |
4332 | /* Update flag on peer-group member. */ |
4333 | COND_FLAG(member->af_flags[afi][safi], flag, | |
4334 | set != member_invert); | |
d62a17ae | 4335 | |
527de3dc PM |
4336 | /* Execute flag action on peer-group member. */ |
4337 | if (member->status == Established) { | |
d62a17ae | 4338 | if (!set && flag == PEER_FLAG_SOFT_RECONFIG) |
527de3dc | 4339 | bgp_clear_adj_in(member, afi, safi); |
d62a17ae | 4340 | else { |
4341 | if (flag == PEER_FLAG_REFLECTOR_CLIENT) | |
527de3dc | 4342 | member->last_reset = |
d62a17ae | 4343 | PEER_DOWN_RR_CLIENT_CHANGE; |
4344 | else if (flag | |
4345 | == PEER_FLAG_RSERVER_CLIENT) | |
527de3dc | 4346 | member->last_reset = |
d62a17ae | 4347 | PEER_DOWN_RS_CLIENT_CHANGE; |
4348 | else if (flag | |
4349 | == PEER_FLAG_ORF_PREFIX_SM) | |
527de3dc | 4350 | member->last_reset = |
d62a17ae | 4351 | PEER_DOWN_CAPABILITY_CHANGE; |
4352 | else if (flag | |
4353 | == PEER_FLAG_ORF_PREFIX_RM) | |
527de3dc | 4354 | member->last_reset = |
d62a17ae | 4355 | PEER_DOWN_CAPABILITY_CHANGE; |
4356 | ||
527de3dc | 4357 | peer_change_action(member, afi, safi, |
d62a17ae | 4358 | action.type); |
4359 | } | |
4360 | } | |
4361 | } | |
4362 | } | |
4363 | ||
d62a17ae | 4364 | return 0; |
4365 | } | |
4366 | ||
d7c0a89a | 4367 | int peer_af_flag_set(struct peer *peer, afi_t afi, safi_t safi, uint32_t flag) |
d62a17ae | 4368 | { |
4369 | return peer_af_flag_modify(peer, afi, safi, flag, 1); | |
4370 | } | |
4371 | ||
d7c0a89a | 4372 | int peer_af_flag_unset(struct peer *peer, afi_t afi, safi_t safi, uint32_t flag) |
d62a17ae | 4373 | { |
4374 | return peer_af_flag_modify(peer, afi, safi, flag, 0); | |
4375 | } | |
4376 | ||
4377 | ||
4378 | int peer_tx_shutdown_message_set(struct peer *peer, const char *msg) | |
4379 | { | |
4380 | XFREE(MTYPE_PEER_TX_SHUTDOWN_MSG, peer->tx_shutdown_message); | |
4381 | peer->tx_shutdown_message = | |
4382 | msg ? XSTRDUP(MTYPE_PEER_TX_SHUTDOWN_MSG, msg) : NULL; | |
4383 | return 0; | |
4384 | } | |
4385 | ||
4386 | int peer_tx_shutdown_message_unset(struct peer *peer) | |
4387 | { | |
4388 | XFREE(MTYPE_PEER_TX_SHUTDOWN_MSG, peer->tx_shutdown_message); | |
4389 | return 0; | |
4390 | } | |
4391 | ||
4392 | ||
4393 | /* EBGP multihop configuration. */ | |
4394 | int peer_ebgp_multihop_set(struct peer *peer, int ttl) | |
4395 | { | |
4396 | struct peer_group *group; | |
4397 | struct listnode *node, *nnode; | |
4398 | struct peer *peer1; | |
4399 | ||
4400 | if (peer->sort == BGP_PEER_IBGP || peer->conf_if) | |
4401 | return 0; | |
4402 | ||
4403 | /* see comment in peer_ttl_security_hops_set() */ | |
4404 | if (ttl != MAXTTL) { | |
4405 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4406 | group = peer->group; | |
4407 | if (group->conf->gtsm_hops != 0) | |
4408 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
4409 | ||
4410 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, | |
4411 | peer1)) { | |
4412 | if (peer1->sort == BGP_PEER_IBGP) | |
4413 | continue; | |
4414 | ||
4415 | if (peer1->gtsm_hops != 0) | |
4416 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
4417 | } | |
4418 | } else { | |
4419 | if (peer->gtsm_hops != 0) | |
4420 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
4421 | } | |
4422 | } | |
4423 | ||
4424 | peer->ttl = ttl; | |
4425 | ||
4426 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4427 | if (peer->fd >= 0 && peer->sort != BGP_PEER_IBGP) { | |
4428 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
4429 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4430 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4431 | else | |
4432 | bgp_session_reset(peer); | |
4433 | } | |
4434 | } else { | |
4435 | group = peer->group; | |
4436 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
4437 | if (peer->sort == BGP_PEER_IBGP) | |
4438 | continue; | |
4439 | ||
4440 | peer->ttl = group->conf->ttl; | |
4441 | ||
4442 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
4443 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4444 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4445 | else | |
4446 | bgp_session_reset(peer); | |
4447 | } | |
4448 | } | |
4449 | return 0; | |
4450 | } | |
4451 | ||
4452 | int peer_ebgp_multihop_unset(struct peer *peer) | |
4453 | { | |
4454 | struct peer_group *group; | |
4455 | struct listnode *node, *nnode; | |
4456 | ||
4457 | if (peer->sort == BGP_PEER_IBGP) | |
4458 | return 0; | |
4459 | ||
4460 | if (peer->gtsm_hops != 0 && peer->ttl != MAXTTL) | |
4461 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
4462 | ||
4463 | if (peer_group_active(peer)) | |
4464 | peer->ttl = peer->group->conf->ttl; | |
4465 | else | |
a0903cd2 | 4466 | peer->ttl = BGP_DEFAULT_TTL; |
d62a17ae | 4467 | |
4468 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4469 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
4470 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4471 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4472 | else | |
4473 | bgp_session_reset(peer); | |
4474 | } else { | |
4475 | group = peer->group; | |
4476 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
4477 | if (peer->sort == BGP_PEER_IBGP) | |
4478 | continue; | |
4479 | ||
a0903cd2 | 4480 | peer->ttl = BGP_DEFAULT_TTL; |
d62a17ae | 4481 | |
4482 | if (peer->fd >= 0) { | |
4483 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
4484 | bgp_notify_send( | |
4485 | peer, BGP_NOTIFY_CEASE, | |
4486 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4487 | else | |
4488 | bgp_session_reset(peer); | |
4489 | } | |
4490 | } | |
4491 | } | |
4492 | return 0; | |
4493 | } | |
4494 | ||
4495 | /* Neighbor description. */ | |
4496 | int peer_description_set(struct peer *peer, const char *desc) | |
4497 | { | |
0a22ddfb | 4498 | XFREE(MTYPE_PEER_DESC, peer->desc); |
d62a17ae | 4499 | |
4500 | peer->desc = XSTRDUP(MTYPE_PEER_DESC, desc); | |
4501 | ||
4502 | return 0; | |
4503 | } | |
4504 | ||
4505 | int peer_description_unset(struct peer *peer) | |
4506 | { | |
0a22ddfb | 4507 | XFREE(MTYPE_PEER_DESC, peer->desc); |
d62a17ae | 4508 | |
4509 | peer->desc = NULL; | |
4510 | ||
4511 | return 0; | |
4512 | } | |
4513 | ||
4514 | /* Neighbor update-source. */ | |
4515 | int peer_update_source_if_set(struct peer *peer, const char *ifname) | |
4516 | { | |
a14810f4 | 4517 | struct peer *member; |
d62a17ae | 4518 | struct listnode *node, *nnode; |
4519 | ||
a14810f4 PM |
4520 | /* Set flag and configuration on peer. */ |
4521 | peer_flag_set(peer, PEER_FLAG_UPDATE_SOURCE); | |
d62a17ae | 4522 | if (peer->update_if) { |
a14810f4 | 4523 | if (strcmp(peer->update_if, ifname) == 0) |
d62a17ae | 4524 | return 0; |
d62a17ae | 4525 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); |
d62a17ae | 4526 | } |
d62a17ae | 4527 | peer->update_if = XSTRDUP(MTYPE_PEER_UPDATE_SOURCE, ifname); |
a14810f4 PM |
4528 | sockunion_free(peer->update_source); |
4529 | peer->update_source = NULL; | |
d62a17ae | 4530 | |
a14810f4 | 4531 | /* Check if handling a regular peer. */ |
d62a17ae | 4532 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 4533 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 4534 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
4535 | peer->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4536 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4537 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4538 | } else | |
4539 | bgp_session_reset(peer); | |
a14810f4 PM |
4540 | |
4541 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 4542 | return 0; |
4543 | } | |
4544 | ||
a14810f4 PM |
4545 | /* |
4546 | * Set flag and configuration on all peer-group members, unless they are | |
4547 | * explicitely overriding peer-group configuration. | |
4548 | */ | |
4549 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4550 | /* Skip peers with overridden configuration. */ | |
4551 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_UPDATE_SOURCE)) | |
4552 | continue; | |
d62a17ae | 4553 | |
a14810f4 PM |
4554 | /* Skip peers with the same configuration. */ |
4555 | if (member->update_if) { | |
4556 | if (strcmp(member->update_if, ifname) == 0) | |
4557 | continue; | |
4558 | XFREE(MTYPE_PEER_UPDATE_SOURCE, member->update_if); | |
d62a17ae | 4559 | } |
4560 | ||
a14810f4 PM |
4561 | /* Set flag and configuration on peer-group member. */ |
4562 | SET_FLAG(member->flags, PEER_FLAG_UPDATE_SOURCE); | |
4563 | member->update_if = XSTRDUP(MTYPE_PEER_UPDATE_SOURCE, ifname); | |
4564 | sockunion_free(member->update_source); | |
4565 | member->update_source = NULL; | |
4566 | ||
4567 | /* Send notification or reset peer depending on state. */ | |
4568 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) { | |
4569 | member->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4570 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 4571 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
4572 | } else | |
a14810f4 | 4573 | bgp_session_reset(member); |
d62a17ae | 4574 | } |
a14810f4 | 4575 | |
d62a17ae | 4576 | return 0; |
4577 | } | |
4578 | ||
4579 | int peer_update_source_addr_set(struct peer *peer, const union sockunion *su) | |
4580 | { | |
a14810f4 | 4581 | struct peer *member; |
d62a17ae | 4582 | struct listnode *node, *nnode; |
4583 | ||
a14810f4 PM |
4584 | /* Set flag and configuration on peer. */ |
4585 | peer_flag_set(peer, PEER_FLAG_UPDATE_SOURCE); | |
d62a17ae | 4586 | if (peer->update_source) { |
a14810f4 | 4587 | if (sockunion_cmp(peer->update_source, su) == 0) |
d62a17ae | 4588 | return 0; |
4589 | sockunion_free(peer->update_source); | |
d62a17ae | 4590 | } |
d62a17ae | 4591 | peer->update_source = sockunion_dup(su); |
a14810f4 | 4592 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); |
d62a17ae | 4593 | |
a14810f4 | 4594 | /* Check if handling a regular peer. */ |
d62a17ae | 4595 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 4596 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 4597 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
4598 | peer->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4599 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4600 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4601 | } else | |
4602 | bgp_session_reset(peer); | |
a14810f4 PM |
4603 | |
4604 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 4605 | return 0; |
4606 | } | |
4607 | ||
a14810f4 PM |
4608 | /* |
4609 | * Set flag and configuration on all peer-group members, unless they are | |
4610 | * explicitely overriding peer-group configuration. | |
4611 | */ | |
4612 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4613 | /* Skip peers with overridden configuration. */ | |
4614 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_UPDATE_SOURCE)) | |
4615 | continue; | |
d62a17ae | 4616 | |
a14810f4 PM |
4617 | /* Skip peers with the same configuration. */ |
4618 | if (member->update_source) { | |
4619 | if (sockunion_cmp(member->update_source, su) == 0) | |
4620 | continue; | |
4621 | sockunion_free(member->update_source); | |
d62a17ae | 4622 | } |
4623 | ||
a14810f4 PM |
4624 | /* Set flag and configuration on peer-group member. */ |
4625 | SET_FLAG(member->flags, PEER_FLAG_UPDATE_SOURCE); | |
4626 | member->update_source = sockunion_dup(su); | |
4627 | XFREE(MTYPE_PEER_UPDATE_SOURCE, member->update_if); | |
4628 | ||
4629 | /* Send notification or reset peer depending on state. */ | |
4630 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) { | |
4631 | member->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4632 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 4633 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
4634 | } else | |
a14810f4 | 4635 | bgp_session_reset(member); |
d62a17ae | 4636 | } |
a14810f4 | 4637 | |
d62a17ae | 4638 | return 0; |
4639 | } | |
4640 | ||
4641 | int peer_update_source_unset(struct peer *peer) | |
4642 | { | |
a14810f4 | 4643 | struct peer *member; |
d62a17ae | 4644 | struct listnode *node, *nnode; |
4645 | ||
a14810f4 | 4646 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_UPDATE_SOURCE)) |
d62a17ae | 4647 | return 0; |
4648 | ||
a14810f4 PM |
4649 | /* Inherit configuration from peer-group if peer is member. */ |
4650 | if (peer_group_active(peer)) { | |
4651 | peer_flag_inherit(peer, PEER_FLAG_UPDATE_SOURCE); | |
4652 | PEER_SU_ATTR_INHERIT(peer, peer->group, update_source); | |
4653 | PEER_STR_ATTR_INHERIT(peer, peer->group, update_if, | |
4654 | MTYPE_PEER_UPDATE_SOURCE); | |
4655 | } else { | |
4656 | /* Otherwise remove flag and configuration from peer. */ | |
4657 | peer_flag_unset(peer, PEER_FLAG_UPDATE_SOURCE); | |
d62a17ae | 4658 | sockunion_free(peer->update_source); |
4659 | peer->update_source = NULL; | |
d62a17ae | 4660 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); |
d62a17ae | 4661 | } |
4662 | ||
a14810f4 | 4663 | /* Check if handling a regular peer. */ |
d62a17ae | 4664 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 4665 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 4666 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
4667 | peer->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4668 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4669 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4670 | } else | |
4671 | bgp_session_reset(peer); | |
a14810f4 PM |
4672 | |
4673 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 4674 | return 0; |
4675 | } | |
4676 | ||
a14810f4 PM |
4677 | /* |
4678 | * Set flag and configuration on all peer-group members, unless they are | |
4679 | * explicitely overriding peer-group configuration. | |
4680 | */ | |
4681 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4682 | /* Skip peers with overridden configuration. */ | |
4683 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_UPDATE_SOURCE)) | |
d62a17ae | 4684 | continue; |
4685 | ||
a14810f4 PM |
4686 | /* Skip peers with the same configuration. */ |
4687 | if (!CHECK_FLAG(member->flags, PEER_FLAG_UPDATE_SOURCE) | |
4688 | && !member->update_source && !member->update_if) | |
4689 | continue; | |
d62a17ae | 4690 | |
a14810f4 PM |
4691 | /* Remove flag and configuration on peer-group member. */ |
4692 | UNSET_FLAG(member->flags, PEER_FLAG_UPDATE_SOURCE); | |
4693 | sockunion_free(member->update_source); | |
4694 | member->update_source = NULL; | |
4695 | XFREE(MTYPE_PEER_UPDATE_SOURCE, member->update_if); | |
4696 | ||
4697 | /* Send notification or reset peer depending on state. */ | |
4698 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) { | |
4699 | member->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4700 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 4701 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
4702 | } else | |
a14810f4 | 4703 | bgp_session_reset(member); |
d62a17ae | 4704 | } |
a14810f4 | 4705 | |
d62a17ae | 4706 | return 0; |
4707 | } | |
4708 | ||
4709 | int peer_default_originate_set(struct peer *peer, afi_t afi, safi_t safi, | |
1de27621 | 4710 | const char *rmap, struct route_map *route_map) |
d62a17ae | 4711 | { |
598ce6bd | 4712 | struct peer *member; |
d62a17ae | 4713 | struct listnode *node, *nnode; |
4714 | ||
598ce6bd PM |
4715 | /* Set flag and configuration on peer. */ |
4716 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_DEFAULT_ORIGINATE); | |
4717 | if (rmap) { | |
4718 | if (!peer->default_rmap[afi][safi].name | |
4719 | || strcmp(rmap, peer->default_rmap[afi][safi].name) != 0) { | |
d62a17ae | 4720 | if (peer->default_rmap[afi][safi].name) |
4721 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
4722 | peer->default_rmap[afi][safi].name); | |
598ce6bd | 4723 | |
b4897fa5 | 4724 | route_map_counter_decrement(peer->default_rmap[afi][safi].map); |
d62a17ae | 4725 | peer->default_rmap[afi][safi].name = |
4726 | XSTRDUP(MTYPE_ROUTE_MAP_NAME, rmap); | |
1de27621 | 4727 | peer->default_rmap[afi][safi].map = route_map; |
b4897fa5 | 4728 | route_map_counter_increment(route_map); |
d62a17ae | 4729 | } |
598ce6bd PM |
4730 | } else if (!rmap) { |
4731 | if (peer->default_rmap[afi][safi].name) | |
4732 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
4733 | peer->default_rmap[afi][safi].name); | |
4734 | ||
b4897fa5 | 4735 | route_map_counter_decrement(peer->default_rmap[afi][safi].map); |
598ce6bd PM |
4736 | peer->default_rmap[afi][safi].name = NULL; |
4737 | peer->default_rmap[afi][safi].map = NULL; | |
d62a17ae | 4738 | } |
4739 | ||
598ce6bd | 4740 | /* Check if handling a regular peer. */ |
d62a17ae | 4741 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
598ce6bd | 4742 | /* Update peer route announcements. */ |
d62a17ae | 4743 | if (peer->status == Established && peer->afc_nego[afi][safi]) { |
4744 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
4745 | bgp_default_originate(peer, afi, safi, 0); | |
4746 | bgp_announce_route(peer, afi, safi); | |
4747 | } | |
598ce6bd PM |
4748 | |
4749 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 4750 | return 0; |
4751 | } | |
4752 | ||
598ce6bd PM |
4753 | /* |
4754 | * Set flag and configuration on all peer-group members, unless they are | |
4755 | * explicitely overriding peer-group configuration. | |
4756 | */ | |
4757 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4758 | /* Skip peers with overridden configuration. */ | |
4759 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
4760 | PEER_FLAG_DEFAULT_ORIGINATE)) | |
4761 | continue; | |
d62a17ae | 4762 | |
598ce6bd PM |
4763 | /* Set flag and configuration on peer-group member. */ |
4764 | SET_FLAG(member->af_flags[afi][safi], | |
4765 | PEER_FLAG_DEFAULT_ORIGINATE); | |
d62a17ae | 4766 | if (rmap) { |
598ce6bd | 4767 | if (member->default_rmap[afi][safi].name) |
d62a17ae | 4768 | XFREE(MTYPE_ROUTE_MAP_NAME, |
598ce6bd | 4769 | member->default_rmap[afi][safi].name); |
b4897fa5 | 4770 | route_map_counter_decrement( |
4771 | member->default_rmap[afi][safi].map); | |
598ce6bd | 4772 | member->default_rmap[afi][safi].name = |
d62a17ae | 4773 | XSTRDUP(MTYPE_ROUTE_MAP_NAME, rmap); |
1de27621 | 4774 | member->default_rmap[afi][safi].map = route_map; |
b4897fa5 | 4775 | route_map_counter_increment(route_map); |
d62a17ae | 4776 | } |
4777 | ||
598ce6bd PM |
4778 | /* Update peer route announcements. */ |
4779 | if (member->status == Established | |
4780 | && member->afc_nego[afi][safi]) { | |
4781 | update_group_adjust_peer( | |
4782 | peer_af_find(member, afi, safi)); | |
4783 | bgp_default_originate(member, afi, safi, 0); | |
4784 | bgp_announce_route(member, afi, safi); | |
d62a17ae | 4785 | } |
4786 | } | |
598ce6bd | 4787 | |
d62a17ae | 4788 | return 0; |
4789 | } | |
4790 | ||
4791 | int peer_default_originate_unset(struct peer *peer, afi_t afi, safi_t safi) | |
4792 | { | |
598ce6bd | 4793 | struct peer *member; |
d62a17ae | 4794 | struct listnode *node, *nnode; |
4795 | ||
598ce6bd PM |
4796 | /* Inherit configuration from peer-group if peer is member. */ |
4797 | if (peer_group_active(peer)) { | |
4798 | peer_af_flag_inherit(peer, afi, safi, | |
4799 | PEER_FLAG_DEFAULT_ORIGINATE); | |
e7103a96 PM |
4800 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
4801 | default_rmap[afi][safi].name, | |
4802 | MTYPE_ROUTE_MAP_NAME); | |
4803 | PEER_ATTR_INHERIT(peer, peer->group, | |
4804 | default_rmap[afi][safi].map); | |
598ce6bd PM |
4805 | } else { |
4806 | /* Otherwise remove flag and configuration from peer. */ | |
4807 | peer_af_flag_unset(peer, afi, safi, | |
4808 | PEER_FLAG_DEFAULT_ORIGINATE); | |
d62a17ae | 4809 | if (peer->default_rmap[afi][safi].name) |
4810 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
4811 | peer->default_rmap[afi][safi].name); | |
b4897fa5 | 4812 | route_map_counter_decrement(peer->default_rmap[afi][safi].map); |
d62a17ae | 4813 | peer->default_rmap[afi][safi].name = NULL; |
4814 | peer->default_rmap[afi][safi].map = NULL; | |
4815 | } | |
4816 | ||
598ce6bd | 4817 | /* Check if handling a regular peer. */ |
d62a17ae | 4818 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
598ce6bd | 4819 | /* Update peer route announcements. */ |
d62a17ae | 4820 | if (peer->status == Established && peer->afc_nego[afi][safi]) { |
4821 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
4822 | bgp_default_originate(peer, afi, safi, 1); | |
4823 | bgp_announce_route(peer, afi, safi); | |
4824 | } | |
598ce6bd PM |
4825 | |
4826 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 4827 | return 0; |
4828 | } | |
4829 | ||
598ce6bd PM |
4830 | /* |
4831 | * Remove flag and configuration from all peer-group members, unless | |
4832 | * they are explicitely overriding peer-group configuration. | |
4833 | */ | |
4834 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4835 | /* Skip peers with overridden configuration. */ | |
4836 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
4837 | PEER_FLAG_DEFAULT_ORIGINATE)) | |
4838 | continue; | |
4839 | ||
4840 | /* Remove flag and configuration on peer-group member. */ | |
d62a17ae | 4841 | UNSET_FLAG(peer->af_flags[afi][safi], |
4842 | PEER_FLAG_DEFAULT_ORIGINATE); | |
d62a17ae | 4843 | if (peer->default_rmap[afi][safi].name) |
4844 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
4845 | peer->default_rmap[afi][safi].name); | |
b4897fa5 | 4846 | route_map_counter_decrement(peer->default_rmap[afi][safi].map); |
d62a17ae | 4847 | peer->default_rmap[afi][safi].name = NULL; |
4848 | peer->default_rmap[afi][safi].map = NULL; | |
4849 | ||
598ce6bd | 4850 | /* Update peer route announcements. */ |
d62a17ae | 4851 | if (peer->status == Established && peer->afc_nego[afi][safi]) { |
4852 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
4853 | bgp_default_originate(peer, afi, safi, 1); | |
4854 | bgp_announce_route(peer, afi, safi); | |
4855 | } | |
4856 | } | |
598ce6bd | 4857 | |
d62a17ae | 4858 | return 0; |
4859 | } | |
4860 | ||
d7c0a89a | 4861 | int peer_port_set(struct peer *peer, uint16_t port) |
d62a17ae | 4862 | { |
4863 | peer->port = port; | |
4864 | return 0; | |
4865 | } | |
4866 | ||
4867 | int peer_port_unset(struct peer *peer) | |
4868 | { | |
4869 | peer->port = BGP_PORT_DEFAULT; | |
4870 | return 0; | |
4871 | } | |
4872 | ||
4873 | /* | |
4874 | * Helper function that is called after the name of the policy | |
4875 | * being used by a peer has changed (AF specific). Automatically | |
4876 | * initiates inbound or outbound processing as needed. | |
4877 | */ | |
4878 | static void peer_on_policy_change(struct peer *peer, afi_t afi, safi_t safi, | |
4879 | int outbound) | |
4880 | { | |
4881 | if (outbound) { | |
4882 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
4883 | if (peer->status == Established) | |
4884 | bgp_announce_route(peer, afi, safi); | |
4885 | } else { | |
4886 | if (peer->status != Established) | |
4887 | return; | |
4888 | ||
4889 | if (CHECK_FLAG(peer->af_flags[afi][safi], | |
4890 | PEER_FLAG_SOFT_RECONFIG)) | |
4891 | bgp_soft_reconfig_in(peer, afi, safi); | |
4892 | else if (CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_OLD_RCV) | |
4893 | || CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_NEW_RCV)) | |
4894 | bgp_route_refresh_send(peer, afi, safi, 0, 0, 0); | |
4895 | } | |
4896 | } | |
4897 | ||
4898 | ||
4899 | /* neighbor weight. */ | |
d7c0a89a | 4900 | int peer_weight_set(struct peer *peer, afi_t afi, safi_t safi, uint16_t weight) |
d62a17ae | 4901 | { |
598ce6bd | 4902 | struct peer *member; |
d62a17ae | 4903 | struct listnode *node, *nnode; |
4904 | ||
598ce6bd PM |
4905 | /* Set flag and configuration on peer. */ |
4906 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_WEIGHT); | |
d62a17ae | 4907 | if (peer->weight[afi][safi] != weight) { |
4908 | peer->weight[afi][safi] = weight; | |
d62a17ae | 4909 | peer_on_policy_change(peer, afi, safi, 0); |
4910 | } | |
4911 | ||
598ce6bd | 4912 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 4913 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) |
4914 | return 0; | |
4915 | ||
598ce6bd PM |
4916 | /* |
4917 | * Set flag and configuration on all peer-group members, unless they are | |
4918 | * explicitely overriding peer-group configuration. | |
4919 | */ | |
4920 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4921 | /* Skip peers with overridden configuration. */ | |
4922 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
4923 | PEER_FLAG_WEIGHT)) | |
4924 | continue; | |
4925 | ||
4926 | /* Set flag and configuration on peer-group member. */ | |
4927 | SET_FLAG(member->af_flags[afi][safi], PEER_FLAG_WEIGHT); | |
4928 | if (member->weight[afi][safi] != weight) { | |
4929 | member->weight[afi][safi] = weight; | |
4930 | peer_on_policy_change(member, afi, safi, 0); | |
d62a17ae | 4931 | } |
4932 | } | |
598ce6bd | 4933 | |
d62a17ae | 4934 | return 0; |
4935 | } | |
4936 | ||
4937 | int peer_weight_unset(struct peer *peer, afi_t afi, safi_t safi) | |
4938 | { | |
598ce6bd | 4939 | struct peer *member; |
d62a17ae | 4940 | struct listnode *node, *nnode; |
4941 | ||
598ce6bd PM |
4942 | if (!CHECK_FLAG(peer->af_flags[afi][safi], PEER_FLAG_WEIGHT)) |
4943 | return 0; | |
4944 | ||
4945 | /* Inherit configuration from peer-group if peer is member. */ | |
d62a17ae | 4946 | if (peer_group_active(peer)) { |
598ce6bd | 4947 | peer_af_flag_inherit(peer, afi, safi, PEER_FLAG_WEIGHT); |
e7103a96 | 4948 | PEER_ATTR_INHERIT(peer, peer->group, weight[afi][safi]); |
d62a17ae | 4949 | |
598ce6bd PM |
4950 | peer_on_policy_change(peer, afi, safi, 0); |
4951 | return 0; | |
d62a17ae | 4952 | } |
4953 | ||
598ce6bd PM |
4954 | /* Remove flag and configuration from peer. */ |
4955 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_WEIGHT); | |
4956 | peer->weight[afi][safi] = 0; | |
4957 | peer_on_policy_change(peer, afi, safi, 0); | |
d62a17ae | 4958 | |
598ce6bd PM |
4959 | /* Skip peer-group mechanics for regular peers. */ |
4960 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
4961 | return 0; | |
d62a17ae | 4962 | |
598ce6bd PM |
4963 | /* |
4964 | * Remove flag and configuration from all peer-group members, unless | |
4965 | * they are explicitely overriding peer-group configuration. | |
4966 | */ | |
4967 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4968 | /* Skip peers with overridden configuration. */ | |
4969 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
4970 | PEER_FLAG_WEIGHT)) | |
4971 | continue; | |
4972 | ||
4973 | /* Skip peers where flag is already disabled. */ | |
4974 | if (!CHECK_FLAG(member->af_flags[afi][safi], PEER_FLAG_WEIGHT)) | |
4975 | continue; | |
4976 | ||
4977 | /* Remove flag and configuration on peer-group member. */ | |
4978 | UNSET_FLAG(member->af_flags[afi][safi], PEER_FLAG_WEIGHT); | |
4979 | member->weight[afi][safi] = 0; | |
4980 | peer_on_policy_change(member, afi, safi, 0); | |
d62a17ae | 4981 | } |
598ce6bd | 4982 | |
d62a17ae | 4983 | return 0; |
4984 | } | |
4985 | ||
d7c0a89a | 4986 | int peer_timers_set(struct peer *peer, uint32_t keepalive, uint32_t holdtime) |
d62a17ae | 4987 | { |
b90a8e13 | 4988 | struct peer *member; |
d62a17ae | 4989 | struct listnode *node, *nnode; |
4990 | ||
d62a17ae | 4991 | if (keepalive > 65535) |
4992 | return BGP_ERR_INVALID_VALUE; | |
4993 | ||
d62a17ae | 4994 | if (holdtime > 65535) |
4995 | return BGP_ERR_INVALID_VALUE; | |
4996 | ||
d62a17ae | 4997 | if (holdtime < 3 && holdtime != 0) |
4998 | return BGP_ERR_INVALID_VALUE; | |
4999 | ||
b90a8e13 PM |
5000 | /* Set flag and configuration on peer. */ |
5001 | peer_flag_set(peer, PEER_FLAG_TIMER); | |
d62a17ae | 5002 | peer->holdtime = holdtime; |
5003 | peer->keepalive = (keepalive < holdtime / 3 ? keepalive : holdtime / 3); | |
5004 | ||
b90a8e13 PM |
5005 | /* Skip peer-group mechanics for regular peers. */ |
5006 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
5007 | return 0; | |
d25e4efc | 5008 | |
b90a8e13 PM |
5009 | /* |
5010 | * Set flag and configuration on all peer-group members, unless they are | |
5011 | * explicitely overriding peer-group configuration. | |
5012 | */ | |
5013 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5014 | /* Skip peers with overridden configuration. */ | |
5015 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_TIMER)) | |
5016 | continue; | |
d25e4efc | 5017 | |
b90a8e13 PM |
5018 | /* Set flag and configuration on peer-group member. */ |
5019 | SET_FLAG(member->flags, PEER_FLAG_TIMER); | |
5020 | PEER_ATTR_INHERIT(peer, peer->group, holdtime); | |
5021 | PEER_ATTR_INHERIT(peer, peer->group, keepalive); | |
d62a17ae | 5022 | } |
d25e4efc | 5023 | |
d62a17ae | 5024 | return 0; |
5025 | } | |
5026 | ||
5027 | int peer_timers_unset(struct peer *peer) | |
5028 | { | |
b90a8e13 | 5029 | struct peer *member; |
d62a17ae | 5030 | struct listnode *node, *nnode; |
5031 | ||
b90a8e13 PM |
5032 | /* Inherit configuration from peer-group if peer is member. */ |
5033 | if (peer_group_active(peer)) { | |
5034 | peer_flag_inherit(peer, PEER_FLAG_TIMER); | |
5035 | PEER_ATTR_INHERIT(peer, peer->group, holdtime); | |
5036 | PEER_ATTR_INHERIT(peer, peer->group, keepalive); | |
5037 | } else { | |
5038 | /* Otherwise remove flag and configuration from peer. */ | |
5039 | peer_flag_unset(peer, PEER_FLAG_TIMER); | |
d25e4efc | 5040 | peer->holdtime = 0; |
b90a8e13 PM |
5041 | peer->keepalive = 0; |
5042 | } | |
d25e4efc | 5043 | |
b90a8e13 PM |
5044 | /* Skip peer-group mechanics for regular peers. */ |
5045 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
5046 | return 0; | |
5047 | ||
5048 | /* | |
5049 | * Remove flag and configuration from all peer-group members, unless | |
5050 | * they are explicitely overriding peer-group configuration. | |
5051 | */ | |
5052 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5053 | /* Skip peers with overridden configuration. */ | |
5054 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_TIMER)) | |
5055 | continue; | |
d25e4efc | 5056 | |
b90a8e13 PM |
5057 | /* Remove flag and configuration on peer-group member. */ |
5058 | UNSET_FLAG(member->flags, PEER_FLAG_TIMER); | |
5059 | member->holdtime = 0; | |
5060 | member->keepalive = 0; | |
d62a17ae | 5061 | } |
5062 | ||
5063 | return 0; | |
5064 | } | |
5065 | ||
d7c0a89a | 5066 | int peer_timers_connect_set(struct peer *peer, uint32_t connect) |
d62a17ae | 5067 | { |
b90a8e13 | 5068 | struct peer *member; |
d62a17ae | 5069 | struct listnode *node, *nnode; |
5070 | ||
5071 | if (connect > 65535) | |
5072 | return BGP_ERR_INVALID_VALUE; | |
5073 | ||
b90a8e13 PM |
5074 | /* Set flag and configuration on peer. */ |
5075 | peer_flag_set(peer, PEER_FLAG_TIMER_CONNECT); | |
d62a17ae | 5076 | peer->connect = connect; |
d62a17ae | 5077 | peer->v_connect = connect; |
5078 | ||
b90a8e13 | 5079 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 5080 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) |
5081 | return 0; | |
5082 | ||
b90a8e13 PM |
5083 | /* |
5084 | * Set flag and configuration on all peer-group members, unless they are | |
5085 | * explicitely overriding peer-group configuration. | |
5086 | */ | |
5087 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5088 | /* Skip peers with overridden configuration. */ | |
5089 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_TIMER_CONNECT)) | |
5090 | continue; | |
5091 | ||
5092 | /* Set flag and configuration on peer-group member. */ | |
5093 | SET_FLAG(member->flags, PEER_FLAG_TIMER_CONNECT); | |
5094 | member->connect = connect; | |
5095 | member->v_connect = connect; | |
d62a17ae | 5096 | } |
b90a8e13 | 5097 | |
d62a17ae | 5098 | return 0; |
5099 | } | |
5100 | ||
5101 | int peer_timers_connect_unset(struct peer *peer) | |
5102 | { | |
b90a8e13 | 5103 | struct peer *member; |
d62a17ae | 5104 | struct listnode *node, *nnode; |
5105 | ||
b90a8e13 PM |
5106 | /* Inherit configuration from peer-group if peer is member. */ |
5107 | if (peer_group_active(peer)) { | |
5108 | peer_flag_inherit(peer, PEER_FLAG_TIMER_CONNECT); | |
5109 | PEER_ATTR_INHERIT(peer, peer->group, connect); | |
5110 | } else { | |
5111 | /* Otherwise remove flag and configuration from peer. */ | |
5112 | peer_flag_unset(peer, PEER_FLAG_TIMER_CONNECT); | |
5113 | peer->connect = 0; | |
5114 | } | |
d62a17ae | 5115 | |
b90a8e13 PM |
5116 | /* Set timer with fallback to default value. */ |
5117 | if (peer->connect) | |
5118 | peer->v_connect = peer->connect; | |
5119 | else | |
5d5393b9 | 5120 | peer->v_connect = peer->bgp->default_connect_retry; |
d62a17ae | 5121 | |
b90a8e13 | 5122 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 5123 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) |
5124 | return 0; | |
5125 | ||
b90a8e13 PM |
5126 | /* |
5127 | * Remove flag and configuration from all peer-group members, unless | |
5128 | * they are explicitely overriding peer-group configuration. | |
5129 | */ | |
5130 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5131 | /* Skip peers with overridden configuration. */ | |
5132 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_TIMER_CONNECT)) | |
5133 | continue; | |
5134 | ||
5135 | /* Remove flag and configuration on peer-group member. */ | |
5136 | UNSET_FLAG(member->flags, PEER_FLAG_TIMER_CONNECT); | |
5137 | member->connect = 0; | |
5d5393b9 | 5138 | member->v_connect = peer->bgp->default_connect_retry; |
d62a17ae | 5139 | } |
b90a8e13 | 5140 | |
d62a17ae | 5141 | return 0; |
5142 | } | |
5143 | ||
d7c0a89a | 5144 | int peer_advertise_interval_set(struct peer *peer, uint32_t routeadv) |
d62a17ae | 5145 | { |
b90a8e13 | 5146 | struct peer *member; |
d62a17ae | 5147 | struct listnode *node, *nnode; |
5148 | ||
5149 | if (routeadv > 600) | |
5150 | return BGP_ERR_INVALID_VALUE; | |
5151 | ||
b90a8e13 PM |
5152 | /* Set flag and configuration on peer. */ |
5153 | peer_flag_set(peer, PEER_FLAG_ROUTEADV); | |
d62a17ae | 5154 | peer->routeadv = routeadv; |
5155 | peer->v_routeadv = routeadv; | |
5156 | ||
b90a8e13 | 5157 | /* Check if handling a regular peer. */ |
d62a17ae | 5158 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
b90a8e13 | 5159 | /* Update peer route announcements. */ |
d62a17ae | 5160 | update_group_adjust_peer_afs(peer); |
5161 | if (peer->status == Established) | |
5162 | bgp_announce_route_all(peer); | |
b90a8e13 PM |
5163 | |
5164 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5165 | return 0; |
5166 | } | |
5167 | ||
b90a8e13 PM |
5168 | /* |
5169 | * Set flag and configuration on all peer-group members, unless they are | |
5170 | * explicitely overriding peer-group configuration. | |
5171 | */ | |
5172 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5173 | /* Skip peers with overridden configuration. */ | |
5174 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_ROUTEADV)) | |
5175 | continue; | |
5176 | ||
5177 | /* Set flag and configuration on peer-group member. */ | |
5178 | SET_FLAG(member->flags, PEER_FLAG_ROUTEADV); | |
5179 | member->routeadv = routeadv; | |
5180 | member->v_routeadv = routeadv; | |
5181 | ||
5182 | /* Update peer route announcements. */ | |
5183 | update_group_adjust_peer_afs(member); | |
5184 | if (member->status == Established) | |
5185 | bgp_announce_route_all(member); | |
d62a17ae | 5186 | } |
5187 | ||
5188 | return 0; | |
5189 | } | |
5190 | ||
5191 | int peer_advertise_interval_unset(struct peer *peer) | |
5192 | { | |
b90a8e13 | 5193 | struct peer *member; |
d62a17ae | 5194 | struct listnode *node, *nnode; |
5195 | ||
b90a8e13 PM |
5196 | /* Inherit configuration from peer-group if peer is member. */ |
5197 | if (peer_group_active(peer)) { | |
5198 | peer_flag_inherit(peer, PEER_FLAG_ROUTEADV); | |
5199 | PEER_ATTR_INHERIT(peer, peer->group, routeadv); | |
5200 | } else { | |
5201 | /* Otherwise remove flag and configuration from peer. */ | |
5202 | peer_flag_unset(peer, PEER_FLAG_ROUTEADV); | |
5203 | peer->routeadv = 0; | |
5204 | } | |
d62a17ae | 5205 | |
b90a8e13 PM |
5206 | /* Set timer with fallback to default value. */ |
5207 | if (peer->routeadv) | |
5208 | peer->v_routeadv = peer->routeadv; | |
d62a17ae | 5209 | else |
b90a8e13 PM |
5210 | peer->v_routeadv = (peer->sort == BGP_PEER_IBGP) |
5211 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
5212 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 5213 | |
b90a8e13 | 5214 | /* Check if handling a regular peer. */ |
d62a17ae | 5215 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
b90a8e13 | 5216 | /* Update peer route announcements. */ |
d62a17ae | 5217 | update_group_adjust_peer_afs(peer); |
5218 | if (peer->status == Established) | |
5219 | bgp_announce_route_all(peer); | |
b90a8e13 PM |
5220 | |
5221 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5222 | return 0; |
5223 | } | |
5224 | ||
b90a8e13 PM |
5225 | /* |
5226 | * Remove flag and configuration from all peer-group members, unless | |
5227 | * they are explicitely overriding peer-group configuration. | |
5228 | */ | |
5229 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5230 | /* Skip peers with overridden configuration. */ | |
5231 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_ROUTEADV)) | |
5232 | continue; | |
d62a17ae | 5233 | |
b90a8e13 PM |
5234 | /* Remove flag and configuration on peer-group member. */ |
5235 | UNSET_FLAG(member->flags, PEER_FLAG_ROUTEADV); | |
5236 | member->routeadv = 0; | |
5237 | member->v_routeadv = (member->sort == BGP_PEER_IBGP) | |
5238 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
5239 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 5240 | |
b90a8e13 PM |
5241 | /* Update peer route announcements. */ |
5242 | update_group_adjust_peer_afs(member); | |
5243 | if (member->status == Established) | |
5244 | bgp_announce_route_all(member); | |
d62a17ae | 5245 | } |
5246 | ||
5247 | return 0; | |
5248 | } | |
5249 | ||
5250 | /* neighbor interface */ | |
5251 | void peer_interface_set(struct peer *peer, const char *str) | |
5252 | { | |
0a22ddfb | 5253 | XFREE(MTYPE_BGP_PEER_IFNAME, peer->ifname); |
d62a17ae | 5254 | peer->ifname = XSTRDUP(MTYPE_BGP_PEER_IFNAME, str); |
5255 | } | |
5256 | ||
5257 | void peer_interface_unset(struct peer *peer) | |
5258 | { | |
0a22ddfb | 5259 | XFREE(MTYPE_BGP_PEER_IFNAME, peer->ifname); |
d62a17ae | 5260 | peer->ifname = NULL; |
5261 | } | |
5262 | ||
5263 | /* Allow-as in. */ | |
5264 | int peer_allowas_in_set(struct peer *peer, afi_t afi, safi_t safi, | |
5265 | int allow_num, int origin) | |
5266 | { | |
598ce6bd | 5267 | struct peer *member; |
d62a17ae | 5268 | struct listnode *node, *nnode; |
5269 | ||
598ce6bd PM |
5270 | if (!origin && (allow_num < 1 || allow_num > 10)) |
5271 | return BGP_ERR_INVALID_VALUE; | |
5272 | ||
5273 | /* Set flag and configuration on peer. */ | |
5274 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_ALLOWAS_IN); | |
d62a17ae | 5275 | if (origin) { |
598ce6bd | 5276 | if (peer->allowas_in[afi][safi] != 0 |
d62a17ae | 5277 | || !CHECK_FLAG(peer->af_flags[afi][safi], |
5278 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { | |
d62a17ae | 5279 | peer_af_flag_set(peer, afi, safi, |
5280 | PEER_FLAG_ALLOWAS_IN_ORIGIN); | |
598ce6bd | 5281 | peer->allowas_in[afi][safi] = 0; |
d62a17ae | 5282 | peer_on_policy_change(peer, afi, safi, 0); |
5283 | } | |
d62a17ae | 5284 | } else { |
d62a17ae | 5285 | if (peer->allowas_in[afi][safi] != allow_num |
5286 | || CHECK_FLAG(peer->af_flags[afi][safi], | |
5287 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { | |
598ce6bd | 5288 | |
d62a17ae | 5289 | peer_af_flag_unset(peer, afi, safi, |
5290 | PEER_FLAG_ALLOWAS_IN_ORIGIN); | |
598ce6bd | 5291 | peer->allowas_in[afi][safi] = allow_num; |
d62a17ae | 5292 | peer_on_policy_change(peer, afi, safi, 0); |
5293 | } | |
598ce6bd | 5294 | } |
d62a17ae | 5295 | |
598ce6bd PM |
5296 | /* Skip peer-group mechanics for regular peers. */ |
5297 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
5298 | return 0; | |
d62a17ae | 5299 | |
598ce6bd PM |
5300 | /* |
5301 | * Set flag and configuration on all peer-group members, unless | |
5302 | * they are explicitely overriding peer-group configuration. | |
5303 | */ | |
5304 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5305 | /* Skip peers with overridden configuration. */ | |
5306 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
246bb5f0 | 5307 | PEER_FLAG_ALLOWAS_IN)) |
598ce6bd PM |
5308 | continue; |
5309 | ||
5310 | /* Set flag and configuration on peer-group member. */ | |
5311 | SET_FLAG(member->af_flags[afi][safi], PEER_FLAG_ALLOWAS_IN); | |
5312 | if (origin) { | |
5313 | if (member->allowas_in[afi][safi] != 0 | |
5314 | || !CHECK_FLAG(member->af_flags[afi][safi], | |
cf9ac8bf | 5315 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { |
598ce6bd | 5316 | SET_FLAG(member->af_flags[afi][safi], |
cf9ac8bf | 5317 | PEER_FLAG_ALLOWAS_IN_ORIGIN); |
598ce6bd PM |
5318 | member->allowas_in[afi][safi] = 0; |
5319 | peer_on_policy_change(peer, afi, safi, 0); | |
5320 | } | |
5321 | } else { | |
5322 | if (member->allowas_in[afi][safi] != allow_num | |
5323 | || CHECK_FLAG(member->af_flags[afi][safi], | |
d62a17ae | 5324 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { |
598ce6bd PM |
5325 | UNSET_FLAG(member->af_flags[afi][safi], |
5326 | PEER_FLAG_ALLOWAS_IN_ORIGIN); | |
5327 | member->allowas_in[afi][safi] = allow_num; | |
d62a17ae | 5328 | peer_on_policy_change(peer, afi, safi, 0); |
5329 | } | |
5330 | } | |
5331 | } | |
5332 | ||
5333 | return 0; | |
5334 | } | |
5335 | ||
5336 | int peer_allowas_in_unset(struct peer *peer, afi_t afi, safi_t safi) | |
5337 | { | |
598ce6bd | 5338 | struct peer *member; |
d62a17ae | 5339 | struct listnode *node, *nnode; |
5340 | ||
598ce6bd PM |
5341 | /* Skip peer if flag is already disabled. */ |
5342 | if (!CHECK_FLAG(peer->af_flags[afi][safi], PEER_FLAG_ALLOWAS_IN)) | |
5343 | return 0; | |
d62a17ae | 5344 | |
598ce6bd PM |
5345 | /* Inherit configuration from peer-group if peer is member. */ |
5346 | if (peer_group_active(peer)) { | |
5347 | peer_af_flag_inherit(peer, afi, safi, PEER_FLAG_ALLOWAS_IN); | |
5348 | peer_af_flag_inherit(peer, afi, safi, | |
cf9ac8bf | 5349 | PEER_FLAG_ALLOWAS_IN_ORIGIN); |
e7103a96 | 5350 | PEER_ATTR_INHERIT(peer, peer->group, allowas_in[afi][safi]); |
d62a17ae | 5351 | peer_on_policy_change(peer, afi, safi, 0); |
598ce6bd PM |
5352 | |
5353 | return 0; | |
5354 | } | |
5355 | ||
5356 | /* Remove flag and configuration from peer. */ | |
5357 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_ALLOWAS_IN); | |
5358 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_ALLOWAS_IN_ORIGIN); | |
5359 | peer->allowas_in[afi][safi] = 0; | |
5360 | peer_on_policy_change(peer, afi, safi, 0); | |
5361 | ||
5362 | /* Skip peer-group mechanics if handling a regular peer. */ | |
5363 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
5364 | return 0; | |
5365 | ||
5366 | /* | |
5367 | * Remove flags and configuration from all peer-group members, unless | |
5368 | * they are explicitely overriding peer-group configuration. | |
5369 | */ | |
5370 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5371 | /* Skip peers with overridden configuration. */ | |
5372 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
cf9ac8bf | 5373 | PEER_FLAG_ALLOWAS_IN)) |
598ce6bd PM |
5374 | continue; |
5375 | ||
5376 | /* Skip peers where flag is already disabled. */ | |
5377 | if (!CHECK_FLAG(member->af_flags[afi][safi], | |
cf9ac8bf | 5378 | PEER_FLAG_ALLOWAS_IN)) |
598ce6bd PM |
5379 | continue; |
5380 | ||
5381 | /* Remove flags and configuration on peer-group member. */ | |
cf9ac8bf | 5382 | UNSET_FLAG(member->af_flags[afi][safi], PEER_FLAG_ALLOWAS_IN); |
598ce6bd | 5383 | UNSET_FLAG(member->af_flags[afi][safi], |
cf9ac8bf | 5384 | PEER_FLAG_ALLOWAS_IN_ORIGIN); |
598ce6bd PM |
5385 | member->allowas_in[afi][safi] = 0; |
5386 | peer_on_policy_change(member, afi, safi, 0); | |
d62a17ae | 5387 | } |
5388 | ||
5389 | return 0; | |
5390 | } | |
5391 | ||
5392 | int peer_local_as_set(struct peer *peer, as_t as, int no_prepend, | |
5393 | int replace_as) | |
5394 | { | |
a14810f4 | 5395 | bool old_no_prepend, old_replace_as; |
d62a17ae | 5396 | struct bgp *bgp = peer->bgp; |
a14810f4 | 5397 | struct peer *member; |
d62a17ae | 5398 | struct listnode *node, *nnode; |
5399 | ||
5400 | if (peer_sort(peer) != BGP_PEER_EBGP | |
5401 | && peer_sort(peer) != BGP_PEER_INTERNAL) | |
5402 | return BGP_ERR_LOCAL_AS_ALLOWED_ONLY_FOR_EBGP; | |
5403 | ||
5404 | if (bgp->as == as) | |
5405 | return BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS; | |
5406 | ||
5407 | if (peer->as == as) | |
5408 | return BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS_REMOTE_AS; | |
5409 | ||
a14810f4 PM |
5410 | /* Save previous flag states. */ |
5411 | old_no_prepend = | |
5412 | !!CHECK_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5413 | old_replace_as = | |
5414 | !!CHECK_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
d62a17ae | 5415 | |
a14810f4 PM |
5416 | /* Set flag and configuration on peer. */ |
5417 | peer_flag_set(peer, PEER_FLAG_LOCAL_AS); | |
5418 | peer_flag_modify(peer, PEER_FLAG_LOCAL_AS_NO_PREPEND, no_prepend); | |
5419 | peer_flag_modify(peer, PEER_FLAG_LOCAL_AS_REPLACE_AS, replace_as); | |
d62a17ae | 5420 | |
a14810f4 PM |
5421 | if (peer->change_local_as == as && old_no_prepend == no_prepend |
5422 | && old_replace_as == replace_as) | |
5423 | return 0; | |
5424 | peer->change_local_as = as; | |
d62a17ae | 5425 | |
a14810f4 | 5426 | /* Check if handling a regular peer. */ |
d62a17ae | 5427 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 5428 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 5429 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
5430 | peer->last_reset = PEER_DOWN_LOCAL_AS_CHANGE; | |
5431 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5432 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5433 | } else | |
5434 | bgp_session_reset(peer); | |
a14810f4 PM |
5435 | |
5436 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5437 | return 0; |
5438 | } | |
5439 | ||
a14810f4 PM |
5440 | /* |
5441 | * Set flag and configuration on all peer-group members, unless they are | |
5442 | * explicitely overriding peer-group configuration. | |
5443 | */ | |
5444 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5445 | /* Skip peers with overridden configuration. */ | |
5446 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_LOCAL_AS)) | |
5447 | continue; | |
d62a17ae | 5448 | |
a14810f4 PM |
5449 | /* Skip peers with the same configuration. */ |
5450 | old_no_prepend = CHECK_FLAG(member->flags, | |
5451 | PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5452 | old_replace_as = CHECK_FLAG(member->flags, | |
5453 | PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
5454 | if (member->change_local_as == as | |
5455 | && CHECK_FLAG(member->flags, PEER_FLAG_LOCAL_AS) | |
5456 | && old_no_prepend == no_prepend | |
5457 | && old_replace_as == replace_as) | |
5458 | continue; | |
d62a17ae | 5459 | |
a14810f4 PM |
5460 | /* Set flag and configuration on peer-group member. */ |
5461 | SET_FLAG(member->flags, PEER_FLAG_LOCAL_AS); | |
5462 | COND_FLAG(member->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND, | |
5463 | no_prepend); | |
5464 | COND_FLAG(member->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS, | |
5465 | replace_as); | |
5466 | member->change_local_as = as; | |
5467 | ||
5468 | /* Send notification or stop peer depending on state. */ | |
5469 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) { | |
5470 | member->last_reset = PEER_DOWN_LOCAL_AS_CHANGE; | |
5471 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 5472 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
5473 | } else | |
a14810f4 | 5474 | BGP_EVENT_ADD(member, BGP_Stop); |
d62a17ae | 5475 | } |
5476 | ||
5477 | return 0; | |
5478 | } | |
5479 | ||
5480 | int peer_local_as_unset(struct peer *peer) | |
5481 | { | |
a14810f4 | 5482 | struct peer *member; |
d62a17ae | 5483 | struct listnode *node, *nnode; |
5484 | ||
a14810f4 | 5485 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_LOCAL_AS)) |
d62a17ae | 5486 | return 0; |
5487 | ||
a14810f4 PM |
5488 | /* Inherit configuration from peer-group if peer is member. */ |
5489 | if (peer_group_active(peer)) { | |
5490 | peer_flag_inherit(peer, PEER_FLAG_LOCAL_AS); | |
5491 | peer_flag_inherit(peer, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5492 | peer_flag_inherit(peer, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
5493 | PEER_ATTR_INHERIT(peer, peer->group, change_local_as); | |
5494 | } else { | |
5495 | /* Otherwise remove flag and configuration from peer. */ | |
5496 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS); | |
5497 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5498 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
5499 | peer->change_local_as = 0; | |
5500 | } | |
d62a17ae | 5501 | |
a14810f4 | 5502 | /* Check if handling a regular peer. */ |
d62a17ae | 5503 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 5504 | /* Send notification or stop peer depending on state. */ |
d62a17ae | 5505 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
5506 | peer->last_reset = PEER_DOWN_LOCAL_AS_CHANGE; | |
5507 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5508 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5509 | } else | |
5510 | BGP_EVENT_ADD(peer, BGP_Stop); | |
5511 | ||
a14810f4 | 5512 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 5513 | return 0; |
5514 | } | |
5515 | ||
a14810f4 PM |
5516 | /* |
5517 | * Remove flag and configuration from all peer-group members, unless | |
5518 | * they are explicitely overriding peer-group configuration. | |
5519 | */ | |
5520 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5521 | /* Skip peers with overridden configuration. */ | |
5522 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_LOCAL_AS)) | |
5523 | continue; | |
d62a17ae | 5524 | |
a14810f4 PM |
5525 | /* Remove flag and configuration on peer-group member. */ |
5526 | UNSET_FLAG(member->flags, PEER_FLAG_LOCAL_AS); | |
5527 | UNSET_FLAG(member->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5528 | UNSET_FLAG(member->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
5529 | member->change_local_as = 0; | |
5530 | ||
5531 | /* Send notification or stop peer depending on state. */ | |
5532 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) { | |
5533 | member->last_reset = PEER_DOWN_LOCAL_AS_CHANGE; | |
5534 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 5535 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
5536 | } else | |
a14810f4 | 5537 | bgp_session_reset(member); |
d62a17ae | 5538 | } |
a14810f4 | 5539 | |
d62a17ae | 5540 | return 0; |
5541 | } | |
5542 | ||
5543 | /* Set password for authenticating with the peer. */ | |
5544 | int peer_password_set(struct peer *peer, const char *password) | |
5545 | { | |
a14810f4 PM |
5546 | struct peer *member; |
5547 | struct listnode *node, *nnode; | |
d62a17ae | 5548 | int len = password ? strlen(password) : 0; |
5549 | int ret = BGP_SUCCESS; | |
5550 | ||
5551 | if ((len < PEER_PASSWORD_MINLEN) || (len > PEER_PASSWORD_MAXLEN)) | |
5552 | return BGP_ERR_INVALID_VALUE; | |
5553 | ||
a14810f4 PM |
5554 | /* Set flag and configuration on peer. */ |
5555 | peer_flag_set(peer, PEER_FLAG_PASSWORD); | |
5556 | if (peer->password && strcmp(peer->password, password) == 0) | |
d62a17ae | 5557 | return 0; |
a14810f4 | 5558 | XFREE(MTYPE_PEER_PASSWORD, peer->password); |
d62a17ae | 5559 | peer->password = XSTRDUP(MTYPE_PEER_PASSWORD, password); |
5560 | ||
a14810f4 | 5561 | /* Check if handling a regular peer. */ |
d62a17ae | 5562 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 5563 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 5564 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
5565 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5566 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5567 | else | |
5568 | bgp_session_reset(peer); | |
5569 | ||
a14810f4 PM |
5570 | /* |
5571 | * Attempt to install password on socket and skip peer-group | |
5572 | * mechanics. | |
5573 | */ | |
d62a17ae | 5574 | if (BGP_PEER_SU_UNSPEC(peer)) |
5575 | return BGP_SUCCESS; | |
d62a17ae | 5576 | return (bgp_md5_set(peer) >= 0) ? BGP_SUCCESS |
5577 | : BGP_ERR_TCPSIG_FAILED; | |
5578 | } | |
5579 | ||
a14810f4 PM |
5580 | /* |
5581 | * Set flag and configuration on all peer-group members, unless they are | |
5582 | * explicitely overriding peer-group configuration. | |
5583 | */ | |
5584 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5585 | /* Skip peers with overridden configuration. */ | |
5586 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_PASSWORD)) | |
d62a17ae | 5587 | continue; |
5588 | ||
a14810f4 PM |
5589 | /* Skip peers with the same password. */ |
5590 | if (member->password && strcmp(member->password, password) == 0) | |
5591 | continue; | |
d62a17ae | 5592 | |
a14810f4 PM |
5593 | /* Set flag and configuration on peer-group member. */ |
5594 | SET_FLAG(member->flags, PEER_FLAG_PASSWORD); | |
5595 | if (member->password) | |
5596 | XFREE(MTYPE_PEER_PASSWORD, member->password); | |
5597 | member->password = XSTRDUP(MTYPE_PEER_PASSWORD, password); | |
5598 | ||
5599 | /* Send notification or reset peer depending on state. */ | |
5600 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) | |
5601 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 5602 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
5603 | else | |
a14810f4 | 5604 | bgp_session_reset(member); |
d62a17ae | 5605 | |
a14810f4 PM |
5606 | /* Attempt to install password on socket. */ |
5607 | if (!BGP_PEER_SU_UNSPEC(member) && bgp_md5_set(member) < 0) | |
5608 | ret = BGP_ERR_TCPSIG_FAILED; | |
d62a17ae | 5609 | } |
5610 | ||
9e7d9a61 QY |
5611 | /* Set flag and configuration on all peer-group listen ranges */ |
5612 | struct listnode *ln; | |
5613 | struct prefix *lr; | |
5614 | ||
5615 | for (ALL_LIST_ELEMENTS_RO(peer->group->listen_range[AFI_IP], ln, lr)) | |
5616 | bgp_md5_set_prefix(lr, password); | |
5617 | for (ALL_LIST_ELEMENTS_RO(peer->group->listen_range[AFI_IP6], ln, lr)) | |
5618 | bgp_md5_set_prefix(lr, password); | |
5619 | ||
d62a17ae | 5620 | return ret; |
5621 | } | |
5622 | ||
5623 | int peer_password_unset(struct peer *peer) | |
5624 | { | |
a14810f4 PM |
5625 | struct peer *member; |
5626 | struct listnode *node, *nnode; | |
d62a17ae | 5627 | |
a14810f4 | 5628 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_PASSWORD)) |
d62a17ae | 5629 | return 0; |
5630 | ||
a14810f4 PM |
5631 | /* Inherit configuration from peer-group if peer is member. */ |
5632 | if (peer_group_active(peer)) { | |
5633 | peer_flag_inherit(peer, PEER_FLAG_PASSWORD); | |
5634 | PEER_STR_ATTR_INHERIT(peer, peer->group, password, | |
5635 | MTYPE_PEER_PASSWORD); | |
5636 | } else { | |
5637 | /* Otherwise remove flag and configuration from peer. */ | |
5638 | peer_flag_unset(peer, PEER_FLAG_PASSWORD); | |
5639 | XFREE(MTYPE_PEER_PASSWORD, peer->password); | |
5640 | } | |
5641 | ||
5642 | /* Check if handling a regular peer. */ | |
d62a17ae | 5643 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 5644 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 5645 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
5646 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5647 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5648 | else | |
5649 | bgp_session_reset(peer); | |
5650 | ||
a14810f4 | 5651 | /* Attempt to uninstall password on socket. */ |
d62a17ae | 5652 | if (!BGP_PEER_SU_UNSPEC(peer)) |
5653 | bgp_md5_unset(peer); | |
5654 | ||
a14810f4 | 5655 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 5656 | return 0; |
5657 | } | |
5658 | ||
a14810f4 PM |
5659 | /* |
5660 | * Remove flag and configuration from all peer-group members, unless | |
5661 | * they are explicitely overriding peer-group configuration. | |
5662 | */ | |
5663 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5664 | /* Skip peers with overridden configuration. */ | |
5665 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_PASSWORD)) | |
d62a17ae | 5666 | continue; |
5667 | ||
a14810f4 PM |
5668 | /* Remove flag and configuration on peer-group member. */ |
5669 | UNSET_FLAG(member->flags, PEER_FLAG_PASSWORD); | |
5670 | XFREE(MTYPE_PEER_PASSWORD, member->password); | |
5671 | ||
5672 | /* Send notification or reset peer depending on state. */ | |
5673 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) | |
5674 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 5675 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
5676 | else | |
a14810f4 | 5677 | bgp_session_reset(member); |
d62a17ae | 5678 | |
a14810f4 PM |
5679 | /* Attempt to uninstall password on socket. */ |
5680 | if (!BGP_PEER_SU_UNSPEC(member)) | |
5681 | bgp_md5_unset(member); | |
d62a17ae | 5682 | } |
5683 | ||
9e7d9a61 QY |
5684 | /* Set flag and configuration on all peer-group listen ranges */ |
5685 | struct listnode *ln; | |
5686 | struct prefix *lr; | |
5687 | ||
5688 | for (ALL_LIST_ELEMENTS_RO(peer->group->listen_range[AFI_IP], ln, lr)) | |
5689 | bgp_md5_unset_prefix(lr); | |
5690 | for (ALL_LIST_ELEMENTS_RO(peer->group->listen_range[AFI_IP6], ln, lr)) | |
5691 | bgp_md5_unset_prefix(lr); | |
5692 | ||
d62a17ae | 5693 | return 0; |
5694 | } | |
6b0655a2 | 5695 | |
3f9c7369 | 5696 | |
718e3744 | 5697 | /* Set distribute list to the peer. */ |
d62a17ae | 5698 | int peer_distribute_set(struct peer *peer, afi_t afi, safi_t safi, int direct, |
5699 | const char *name) | |
5700 | { | |
70ee29b4 | 5701 | struct peer *member; |
d62a17ae | 5702 | struct bgp_filter *filter; |
d62a17ae | 5703 | struct listnode *node, *nnode; |
5704 | ||
5705 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5706 | return BGP_ERR_INVALID_VALUE; | |
5707 | ||
70ee29b4 | 5708 | /* Set configuration on peer. */ |
d62a17ae | 5709 | filter = &peer->filter[afi][safi]; |
d62a17ae | 5710 | if (filter->plist[direct].name) |
5711 | return BGP_ERR_PEER_FILTER_CONFLICT; | |
d62a17ae | 5712 | if (filter->dlist[direct].name) |
5713 | XFREE(MTYPE_BGP_FILTER_NAME, filter->dlist[direct].name); | |
5714 | filter->dlist[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5715 | filter->dlist[direct].alist = access_list_lookup(afi, name); | |
5716 | ||
70ee29b4 | 5717 | /* Check if handling a regular peer. */ |
d62a17ae | 5718 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
5719 | /* Set override-flag and process peer route updates. */ |
5720 | SET_FLAG(peer->filter_override[afi][safi][direct], | |
5721 | PEER_FT_DISTRIBUTE_LIST); | |
d62a17ae | 5722 | peer_on_policy_change(peer, afi, safi, |
5723 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
5724 | |
5725 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5726 | return 0; |
5727 | } | |
5728 | ||
70ee29b4 PM |
5729 | /* |
5730 | * Set configuration on all peer-group members, un less they are | |
5731 | * explicitely overriding peer-group configuration. | |
5732 | */ | |
5733 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5734 | /* Skip peers with overridden configuration. */ | |
5735 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
5736 | PEER_FT_DISTRIBUTE_LIST)) | |
5737 | continue; | |
d62a17ae | 5738 | |
70ee29b4 PM |
5739 | /* Set configuration on peer-group member. */ |
5740 | filter = &member->filter[afi][safi]; | |
d62a17ae | 5741 | if (filter->dlist[direct].name) |
5742 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5743 | filter->dlist[direct].name); | |
5744 | filter->dlist[direct].name = | |
5745 | XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5746 | filter->dlist[direct].alist = access_list_lookup(afi, name); | |
70ee29b4 PM |
5747 | |
5748 | /* Process peer route updates. */ | |
5749 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 5750 | (direct == FILTER_OUT) ? 1 : 0); |
5751 | } | |
5752 | ||
5753 | return 0; | |
5754 | } | |
5755 | ||
5756 | int peer_distribute_unset(struct peer *peer, afi_t afi, safi_t safi, int direct) | |
5757 | { | |
70ee29b4 | 5758 | struct peer *member; |
d62a17ae | 5759 | struct bgp_filter *filter; |
d62a17ae | 5760 | struct listnode *node, *nnode; |
5761 | ||
5762 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5763 | return BGP_ERR_INVALID_VALUE; | |
5764 | ||
70ee29b4 PM |
5765 | /* Unset override-flag unconditionally. */ |
5766 | UNSET_FLAG(peer->filter_override[afi][safi][direct], | |
5767 | PEER_FT_DISTRIBUTE_LIST); | |
d62a17ae | 5768 | |
70ee29b4 | 5769 | /* Inherit configuration from peer-group if peer is member. */ |
d62a17ae | 5770 | if (peer_group_active(peer)) { |
e7103a96 PM |
5771 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
5772 | filter[afi][safi].dlist[direct].name, | |
5773 | MTYPE_BGP_FILTER_NAME); | |
5774 | PEER_ATTR_INHERIT(peer, peer->group, | |
5775 | filter[afi][safi].dlist[direct].alist); | |
70ee29b4 PM |
5776 | } else { |
5777 | /* Otherwise remove configuration from peer. */ | |
5778 | filter = &peer->filter[afi][safi]; | |
5779 | if (filter->dlist[direct].name) | |
5780 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5781 | filter->dlist[direct].name); | |
5782 | filter->dlist[direct].name = NULL; | |
5783 | filter->dlist[direct].alist = NULL; | |
d62a17ae | 5784 | } |
5785 | ||
70ee29b4 | 5786 | /* Check if handling a regular peer. */ |
d62a17ae | 5787 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 5788 | /* Process peer route updates. */ |
d62a17ae | 5789 | peer_on_policy_change(peer, afi, safi, |
5790 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
5791 | |
5792 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5793 | return 0; |
5794 | } | |
5795 | ||
70ee29b4 PM |
5796 | /* |
5797 | * Remove configuration on all peer-group members, unless they are | |
5798 | * explicitely overriding peer-group configuration. | |
5799 | */ | |
5800 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5801 | /* Skip peers with overridden configuration. */ | |
5802 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
5803 | PEER_FT_DISTRIBUTE_LIST)) | |
5804 | continue; | |
d62a17ae | 5805 | |
70ee29b4 PM |
5806 | /* Remove configuration on peer-group member. */ |
5807 | filter = &member->filter[afi][safi]; | |
d62a17ae | 5808 | if (filter->dlist[direct].name) |
5809 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5810 | filter->dlist[direct].name); | |
5811 | filter->dlist[direct].name = NULL; | |
5812 | filter->dlist[direct].alist = NULL; | |
70ee29b4 PM |
5813 | |
5814 | /* Process peer route updates. */ | |
5815 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 5816 | (direct == FILTER_OUT) ? 1 : 0); |
5817 | } | |
5818 | ||
5819 | return 0; | |
5820 | } | |
5821 | ||
5822 | /* Update distribute list. */ | |
5823 | static void peer_distribute_update(struct access_list *access) | |
5824 | { | |
5825 | afi_t afi; | |
5826 | safi_t safi; | |
5827 | int direct; | |
5828 | struct listnode *mnode, *mnnode; | |
5829 | struct listnode *node, *nnode; | |
5830 | struct bgp *bgp; | |
5831 | struct peer *peer; | |
5832 | struct peer_group *group; | |
5833 | struct bgp_filter *filter; | |
5834 | ||
5835 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
5836 | if (access->name) | |
5837 | update_group_policy_update(bgp, BGP_POLICY_FILTER_LIST, | |
5838 | access->name, 0, 0); | |
5839 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
05c7a1cc QY |
5840 | FOREACH_AFI_SAFI (afi, safi) { |
5841 | filter = &peer->filter[afi][safi]; | |
5842 | ||
5843 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
5844 | direct++) { | |
5845 | if (filter->dlist[direct].name) | |
5846 | filter->dlist[direct] | |
5847 | .alist = access_list_lookup( | |
5848 | afi, | |
d62a17ae | 5849 | filter->dlist[direct] |
05c7a1cc QY |
5850 | .name); |
5851 | else | |
5852 | filter->dlist[direct].alist = | |
5853 | NULL; | |
d62a17ae | 5854 | } |
05c7a1cc | 5855 | } |
d62a17ae | 5856 | } |
5857 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
05c7a1cc QY |
5858 | FOREACH_AFI_SAFI (afi, safi) { |
5859 | filter = &group->conf->filter[afi][safi]; | |
5860 | ||
5861 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
5862 | direct++) { | |
5863 | if (filter->dlist[direct].name) | |
5864 | filter->dlist[direct] | |
5865 | .alist = access_list_lookup( | |
5866 | afi, | |
d62a17ae | 5867 | filter->dlist[direct] |
05c7a1cc QY |
5868 | .name); |
5869 | else | |
5870 | filter->dlist[direct].alist = | |
5871 | NULL; | |
d62a17ae | 5872 | } |
05c7a1cc | 5873 | } |
d62a17ae | 5874 | } |
5875 | #if ENABLE_BGP_VNC | |
5876 | vnc_prefix_list_update(bgp); | |
5877 | #endif | |
5878 | } | |
5879 | } | |
5880 | ||
5881 | /* Set prefix list to the peer. */ | |
5882 | int peer_prefix_list_set(struct peer *peer, afi_t afi, safi_t safi, int direct, | |
5883 | const char *name) | |
5884 | { | |
70ee29b4 | 5885 | struct peer *member; |
d62a17ae | 5886 | struct bgp_filter *filter; |
d62a17ae | 5887 | struct listnode *node, *nnode; |
5888 | ||
5889 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5890 | return BGP_ERR_INVALID_VALUE; | |
5891 | ||
70ee29b4 | 5892 | /* Set configuration on peer. */ |
d62a17ae | 5893 | filter = &peer->filter[afi][safi]; |
d62a17ae | 5894 | if (filter->dlist[direct].name) |
5895 | return BGP_ERR_PEER_FILTER_CONFLICT; | |
d62a17ae | 5896 | if (filter->plist[direct].name) |
5897 | XFREE(MTYPE_BGP_FILTER_NAME, filter->plist[direct].name); | |
5898 | filter->plist[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5899 | filter->plist[direct].plist = prefix_list_lookup(afi, name); | |
5900 | ||
70ee29b4 | 5901 | /* Check if handling a regular peer. */ |
d62a17ae | 5902 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
5903 | /* Set override-flag and process peer route updates. */ |
5904 | SET_FLAG(peer->filter_override[afi][safi][direct], | |
5905 | PEER_FT_PREFIX_LIST); | |
d62a17ae | 5906 | peer_on_policy_change(peer, afi, safi, |
5907 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
5908 | |
5909 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5910 | return 0; |
5911 | } | |
5912 | ||
70ee29b4 PM |
5913 | /* |
5914 | * Set configuration on all peer-group members, unless they are | |
5915 | * explicitely overriding peer-group configuration. | |
5916 | */ | |
5917 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5918 | /* Skip peers with overridden configuration. */ | |
5919 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
5920 | PEER_FT_PREFIX_LIST)) | |
5921 | continue; | |
d62a17ae | 5922 | |
70ee29b4 PM |
5923 | /* Set configuration on peer-group member. */ |
5924 | filter = &member->filter[afi][safi]; | |
d62a17ae | 5925 | if (filter->plist[direct].name) |
5926 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5927 | filter->plist[direct].name); | |
5928 | filter->plist[direct].name = | |
5929 | XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5930 | filter->plist[direct].plist = prefix_list_lookup(afi, name); | |
70ee29b4 PM |
5931 | |
5932 | /* Process peer route updates. */ | |
5933 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 5934 | (direct == FILTER_OUT) ? 1 : 0); |
5935 | } | |
70ee29b4 | 5936 | |
d62a17ae | 5937 | return 0; |
5938 | } | |
5939 | ||
5940 | int peer_prefix_list_unset(struct peer *peer, afi_t afi, safi_t safi, | |
5941 | int direct) | |
5942 | { | |
70ee29b4 | 5943 | struct peer *member; |
d62a17ae | 5944 | struct bgp_filter *filter; |
d62a17ae | 5945 | struct listnode *node, *nnode; |
5946 | ||
5947 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5948 | return BGP_ERR_INVALID_VALUE; | |
5949 | ||
70ee29b4 PM |
5950 | /* Unset override-flag unconditionally. */ |
5951 | UNSET_FLAG(peer->filter_override[afi][safi][direct], | |
5952 | PEER_FT_PREFIX_LIST); | |
d62a17ae | 5953 | |
70ee29b4 | 5954 | /* Inherit configuration from peer-group if peer is member. */ |
d62a17ae | 5955 | if (peer_group_active(peer)) { |
e7103a96 PM |
5956 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
5957 | filter[afi][safi].plist[direct].name, | |
5958 | MTYPE_BGP_FILTER_NAME); | |
5959 | PEER_ATTR_INHERIT(peer, peer->group, | |
5960 | filter[afi][safi].plist[direct].plist); | |
70ee29b4 PM |
5961 | } else { |
5962 | /* Otherwise remove configuration from peer. */ | |
5963 | filter = &peer->filter[afi][safi]; | |
5964 | if (filter->plist[direct].name) | |
5965 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5966 | filter->plist[direct].name); | |
5967 | filter->plist[direct].name = NULL; | |
5968 | filter->plist[direct].plist = NULL; | |
d62a17ae | 5969 | } |
5970 | ||
70ee29b4 | 5971 | /* Check if handling a regular peer. */ |
d62a17ae | 5972 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 5973 | /* Process peer route updates. */ |
d62a17ae | 5974 | peer_on_policy_change(peer, afi, safi, |
5975 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
5976 | |
5977 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5978 | return 0; |
5979 | } | |
5980 | ||
70ee29b4 PM |
5981 | /* |
5982 | * Remove configuration on all peer-group members, unless they are | |
5983 | * explicitely overriding peer-group configuration. | |
5984 | */ | |
5985 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5986 | /* Skip peers with overridden configuration. */ | |
5987 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
5988 | PEER_FT_PREFIX_LIST)) | |
5989 | continue; | |
d62a17ae | 5990 | |
70ee29b4 PM |
5991 | /* Remove configuration on peer-group member. */ |
5992 | filter = &member->filter[afi][safi]; | |
d62a17ae | 5993 | if (filter->plist[direct].name) |
5994 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5995 | filter->plist[direct].name); | |
5996 | filter->plist[direct].name = NULL; | |
5997 | filter->plist[direct].plist = NULL; | |
70ee29b4 PM |
5998 | |
5999 | /* Process peer route updates. */ | |
6000 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 6001 | (direct == FILTER_OUT) ? 1 : 0); |
6002 | } | |
6003 | ||
6004 | return 0; | |
6005 | } | |
6006 | ||
6007 | /* Update prefix-list list. */ | |
6008 | static void peer_prefix_list_update(struct prefix_list *plist) | |
6009 | { | |
6010 | struct listnode *mnode, *mnnode; | |
6011 | struct listnode *node, *nnode; | |
6012 | struct bgp *bgp; | |
6013 | struct peer *peer; | |
6014 | struct peer_group *group; | |
6015 | struct bgp_filter *filter; | |
6016 | afi_t afi; | |
6017 | safi_t safi; | |
6018 | int direct; | |
6019 | ||
6020 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
6021 | ||
6022 | /* | |
6023 | * Update the prefix-list on update groups. | |
6024 | */ | |
6025 | update_group_policy_update( | |
6026 | bgp, BGP_POLICY_PREFIX_LIST, | |
6027 | plist ? prefix_list_name(plist) : NULL, 0, 0); | |
6028 | ||
6029 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
05c7a1cc QY |
6030 | FOREACH_AFI_SAFI (afi, safi) { |
6031 | filter = &peer->filter[afi][safi]; | |
6032 | ||
6033 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
6034 | direct++) { | |
6035 | if (filter->plist[direct].name) | |
6036 | filter->plist[direct] | |
6037 | .plist = prefix_list_lookup( | |
6038 | afi, | |
d62a17ae | 6039 | filter->plist[direct] |
05c7a1cc QY |
6040 | .name); |
6041 | else | |
6042 | filter->plist[direct].plist = | |
6043 | NULL; | |
d62a17ae | 6044 | } |
05c7a1cc | 6045 | } |
d62a17ae | 6046 | } |
6047 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
05c7a1cc QY |
6048 | FOREACH_AFI_SAFI (afi, safi) { |
6049 | filter = &group->conf->filter[afi][safi]; | |
6050 | ||
6051 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
6052 | direct++) { | |
6053 | if (filter->plist[direct].name) | |
6054 | filter->plist[direct] | |
6055 | .plist = prefix_list_lookup( | |
6056 | afi, | |
d62a17ae | 6057 | filter->plist[direct] |
05c7a1cc QY |
6058 | .name); |
6059 | else | |
6060 | filter->plist[direct].plist = | |
6061 | NULL; | |
d62a17ae | 6062 | } |
05c7a1cc | 6063 | } |
d62a17ae | 6064 | } |
6065 | } | |
6066 | } | |
6067 | ||
6068 | int peer_aslist_set(struct peer *peer, afi_t afi, safi_t safi, int direct, | |
6069 | const char *name) | |
6070 | { | |
70ee29b4 | 6071 | struct peer *member; |
d62a17ae | 6072 | struct bgp_filter *filter; |
d62a17ae | 6073 | struct listnode *node, *nnode; |
6074 | ||
6075 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
6076 | return BGP_ERR_INVALID_VALUE; | |
6077 | ||
70ee29b4 | 6078 | /* Set configuration on peer. */ |
d62a17ae | 6079 | filter = &peer->filter[afi][safi]; |
d62a17ae | 6080 | if (filter->aslist[direct].name) |
6081 | XFREE(MTYPE_BGP_FILTER_NAME, filter->aslist[direct].name); | |
6082 | filter->aslist[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
6083 | filter->aslist[direct].aslist = as_list_lookup(name); | |
6084 | ||
70ee29b4 | 6085 | /* Check if handling a regular peer. */ |
d62a17ae | 6086 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
6087 | /* Set override-flag and process peer route updates. */ |
6088 | SET_FLAG(peer->filter_override[afi][safi][direct], | |
6089 | PEER_FT_FILTER_LIST); | |
d62a17ae | 6090 | peer_on_policy_change(peer, afi, safi, |
6091 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
6092 | |
6093 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6094 | return 0; |
6095 | } | |
6096 | ||
70ee29b4 PM |
6097 | /* |
6098 | * Set configuration on all peer-group members, unless they are | |
6099 | * explicitely overriding peer-group configuration. | |
6100 | */ | |
6101 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6102 | /* Skip peers with overridden configuration. */ | |
6103 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
6104 | PEER_FT_FILTER_LIST)) | |
6105 | continue; | |
d62a17ae | 6106 | |
70ee29b4 PM |
6107 | /* Set configuration on peer-group member. */ |
6108 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6109 | if (filter->aslist[direct].name) |
6110 | XFREE(MTYPE_BGP_FILTER_NAME, | |
6111 | filter->aslist[direct].name); | |
6112 | filter->aslist[direct].name = | |
6113 | XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
6114 | filter->aslist[direct].aslist = as_list_lookup(name); | |
70ee29b4 PM |
6115 | |
6116 | /* Process peer route updates. */ | |
6117 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 6118 | (direct == FILTER_OUT) ? 1 : 0); |
6119 | } | |
70ee29b4 | 6120 | |
d62a17ae | 6121 | return 0; |
6122 | } | |
6123 | ||
6124 | int peer_aslist_unset(struct peer *peer, afi_t afi, safi_t safi, int direct) | |
6125 | { | |
70ee29b4 | 6126 | struct peer *member; |
d62a17ae | 6127 | struct bgp_filter *filter; |
d62a17ae | 6128 | struct listnode *node, *nnode; |
6129 | ||
6130 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
6131 | return BGP_ERR_INVALID_VALUE; | |
6132 | ||
70ee29b4 PM |
6133 | /* Unset override-flag unconditionally. */ |
6134 | UNSET_FLAG(peer->filter_override[afi][safi][direct], | |
6135 | PEER_FT_FILTER_LIST); | |
d62a17ae | 6136 | |
70ee29b4 | 6137 | /* Inherit configuration from peer-group if peer is member. */ |
d62a17ae | 6138 | if (peer_group_active(peer)) { |
e7103a96 PM |
6139 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
6140 | filter[afi][safi].aslist[direct].name, | |
6141 | MTYPE_BGP_FILTER_NAME); | |
6142 | PEER_ATTR_INHERIT(peer, peer->group, | |
70ee29b4 PM |
6143 | filter[afi][safi].aslist[direct].aslist); |
6144 | } else { | |
6145 | /* Otherwise remove configuration from peer. */ | |
6146 | filter = &peer->filter[afi][safi]; | |
6147 | if (filter->aslist[direct].name) | |
6148 | XFREE(MTYPE_BGP_FILTER_NAME, | |
6149 | filter->aslist[direct].name); | |
6150 | filter->aslist[direct].name = NULL; | |
6151 | filter->aslist[direct].aslist = NULL; | |
d62a17ae | 6152 | } |
6153 | ||
70ee29b4 | 6154 | /* Check if handling a regular peer. */ |
d62a17ae | 6155 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 6156 | /* Process peer route updates. */ |
d62a17ae | 6157 | peer_on_policy_change(peer, afi, safi, |
6158 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
6159 | |
6160 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6161 | return 0; |
6162 | } | |
6163 | ||
70ee29b4 PM |
6164 | /* |
6165 | * Remove configuration on all peer-group members, unless they are | |
6166 | * explicitely overriding peer-group configuration. | |
6167 | */ | |
6168 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6169 | /* Skip peers with overridden configuration. */ | |
6170 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
6171 | PEER_FT_FILTER_LIST)) | |
6172 | continue; | |
d62a17ae | 6173 | |
70ee29b4 PM |
6174 | /* Remove configuration on peer-group member. */ |
6175 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6176 | if (filter->aslist[direct].name) |
6177 | XFREE(MTYPE_BGP_FILTER_NAME, | |
6178 | filter->aslist[direct].name); | |
6179 | filter->aslist[direct].name = NULL; | |
6180 | filter->aslist[direct].aslist = NULL; | |
70ee29b4 PM |
6181 | |
6182 | /* Process peer route updates. */ | |
6183 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 6184 | (direct == FILTER_OUT) ? 1 : 0); |
6185 | } | |
6186 | ||
6187 | return 0; | |
6188 | } | |
6189 | ||
6190 | static void peer_aslist_update(const char *aslist_name) | |
6191 | { | |
6192 | afi_t afi; | |
6193 | safi_t safi; | |
6194 | int direct; | |
6195 | struct listnode *mnode, *mnnode; | |
6196 | struct listnode *node, *nnode; | |
6197 | struct bgp *bgp; | |
6198 | struct peer *peer; | |
6199 | struct peer_group *group; | |
6200 | struct bgp_filter *filter; | |
6201 | ||
6202 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
6203 | update_group_policy_update(bgp, BGP_POLICY_FILTER_LIST, | |
6204 | aslist_name, 0, 0); | |
6205 | ||
6206 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
05c7a1cc QY |
6207 | FOREACH_AFI_SAFI (afi, safi) { |
6208 | filter = &peer->filter[afi][safi]; | |
6209 | ||
6210 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
6211 | direct++) { | |
6212 | if (filter->aslist[direct].name) | |
6213 | filter->aslist[direct] | |
6214 | .aslist = as_list_lookup( | |
d62a17ae | 6215 | filter->aslist[direct] |
05c7a1cc QY |
6216 | .name); |
6217 | else | |
6218 | filter->aslist[direct].aslist = | |
6219 | NULL; | |
d62a17ae | 6220 | } |
05c7a1cc | 6221 | } |
d62a17ae | 6222 | } |
6223 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
05c7a1cc QY |
6224 | FOREACH_AFI_SAFI (afi, safi) { |
6225 | filter = &group->conf->filter[afi][safi]; | |
6226 | ||
6227 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
6228 | direct++) { | |
6229 | if (filter->aslist[direct].name) | |
6230 | filter->aslist[direct] | |
6231 | .aslist = as_list_lookup( | |
d62a17ae | 6232 | filter->aslist[direct] |
05c7a1cc QY |
6233 | .name); |
6234 | else | |
6235 | filter->aslist[direct].aslist = | |
6236 | NULL; | |
d62a17ae | 6237 | } |
05c7a1cc | 6238 | } |
d62a17ae | 6239 | } |
6240 | } | |
6241 | } | |
6242 | ||
6243 | static void peer_aslist_add(char *aslist_name) | |
6244 | { | |
6245 | peer_aslist_update(aslist_name); | |
6246 | route_map_notify_dependencies((char *)aslist_name, | |
6247 | RMAP_EVENT_ASLIST_ADDED); | |
6248 | } | |
6249 | ||
6250 | static void peer_aslist_del(const char *aslist_name) | |
6251 | { | |
6252 | peer_aslist_update(aslist_name); | |
6253 | route_map_notify_dependencies(aslist_name, RMAP_EVENT_ASLIST_DELETED); | |
6254 | } | |
6255 | ||
6256 | ||
6257 | int peer_route_map_set(struct peer *peer, afi_t afi, safi_t safi, int direct, | |
1de27621 | 6258 | const char *name, struct route_map *route_map) |
d62a17ae | 6259 | { |
70ee29b4 | 6260 | struct peer *member; |
d62a17ae | 6261 | struct bgp_filter *filter; |
d62a17ae | 6262 | struct listnode *node, *nnode; |
6263 | ||
6264 | if (direct != RMAP_IN && direct != RMAP_OUT) | |
6265 | return BGP_ERR_INVALID_VALUE; | |
6266 | ||
70ee29b4 | 6267 | /* Set configuration on peer. */ |
d62a17ae | 6268 | filter = &peer->filter[afi][safi]; |
6c3247bd NT |
6269 | if (filter->map[direct].name) { |
6270 | /* If the neighbor is configured with the same route-map | |
6271 | * again then, ignore the duplicate configuration. | |
6272 | */ | |
6273 | if (strcmp(filter->map[direct].name, name) == 0) | |
6274 | return 0; | |
6275 | ||
d62a17ae | 6276 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); |
6c3247bd | 6277 | } |
b4897fa5 | 6278 | route_map_counter_decrement(filter->map[direct].map); |
d62a17ae | 6279 | filter->map[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); |
1de27621 | 6280 | filter->map[direct].map = route_map; |
b4897fa5 | 6281 | route_map_counter_increment(route_map); |
d62a17ae | 6282 | |
70ee29b4 | 6283 | /* Check if handling a regular peer. */ |
d62a17ae | 6284 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
6285 | /* Set override-flag and process peer route updates. */ |
6286 | SET_FLAG(peer->filter_override[afi][safi][direct], | |
6287 | PEER_FT_ROUTE_MAP); | |
d62a17ae | 6288 | peer_on_policy_change(peer, afi, safi, |
6289 | (direct == RMAP_OUT) ? 1 : 0); | |
70ee29b4 PM |
6290 | |
6291 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6292 | return 0; |
6293 | } | |
6294 | ||
70ee29b4 PM |
6295 | /* |
6296 | * Set configuration on all peer-group members, unless they are | |
6297 | * explicitely overriding peer-group configuration. | |
6298 | */ | |
6299 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6300 | /* Skip peers with overridden configuration. */ | |
6301 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
6302 | PEER_FT_ROUTE_MAP)) | |
6303 | continue; | |
d62a17ae | 6304 | |
70ee29b4 PM |
6305 | /* Set configuration on peer-group member. */ |
6306 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6307 | if (filter->map[direct].name) |
6308 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); | |
b4897fa5 | 6309 | route_map_counter_decrement(filter->map[direct].map); |
d62a17ae | 6310 | filter->map[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); |
1de27621 | 6311 | filter->map[direct].map = route_map; |
b4897fa5 | 6312 | route_map_counter_increment(route_map); |
70ee29b4 PM |
6313 | |
6314 | /* Process peer route updates. */ | |
6315 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 6316 | (direct == RMAP_OUT) ? 1 : 0); |
6317 | } | |
6318 | return 0; | |
6319 | } | |
6320 | ||
6321 | /* Unset route-map from the peer. */ | |
6322 | int peer_route_map_unset(struct peer *peer, afi_t afi, safi_t safi, int direct) | |
6323 | { | |
70ee29b4 | 6324 | struct peer *member; |
d62a17ae | 6325 | struct bgp_filter *filter; |
d62a17ae | 6326 | struct listnode *node, *nnode; |
6327 | ||
6328 | if (direct != RMAP_IN && direct != RMAP_OUT) | |
6329 | return BGP_ERR_INVALID_VALUE; | |
6330 | ||
70ee29b4 PM |
6331 | /* Unset override-flag unconditionally. */ |
6332 | UNSET_FLAG(peer->filter_override[afi][safi][direct], PEER_FT_ROUTE_MAP); | |
d62a17ae | 6333 | |
70ee29b4 | 6334 | /* Inherit configuration from peer-group if peer is member. */ |
d62a17ae | 6335 | if (peer_group_active(peer)) { |
e7103a96 PM |
6336 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
6337 | filter[afi][safi].map[direct].name, | |
6338 | MTYPE_BGP_FILTER_NAME); | |
6339 | PEER_ATTR_INHERIT(peer, peer->group, | |
6340 | filter[afi][safi].map[direct].map); | |
70ee29b4 PM |
6341 | } else { |
6342 | /* Otherwise remove configuration from peer. */ | |
6343 | filter = &peer->filter[afi][safi]; | |
6344 | if (filter->map[direct].name) | |
6345 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); | |
b4897fa5 | 6346 | route_map_counter_decrement(filter->map[direct].map); |
70ee29b4 PM |
6347 | filter->map[direct].name = NULL; |
6348 | filter->map[direct].map = NULL; | |
d62a17ae | 6349 | } |
6350 | ||
70ee29b4 | 6351 | /* Check if handling a regular peer. */ |
d62a17ae | 6352 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 6353 | /* Process peer route updates. */ |
d62a17ae | 6354 | peer_on_policy_change(peer, afi, safi, |
6355 | (direct == RMAP_OUT) ? 1 : 0); | |
70ee29b4 PM |
6356 | |
6357 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6358 | return 0; |
6359 | } | |
6360 | ||
70ee29b4 PM |
6361 | /* |
6362 | * Remove configuration on all peer-group members, unless they are | |
6363 | * explicitely overriding peer-group configuration. | |
6364 | */ | |
6365 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6366 | /* Skip peers with overridden configuration. */ | |
6367 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
6368 | PEER_FT_ROUTE_MAP)) | |
6369 | continue; | |
d62a17ae | 6370 | |
70ee29b4 PM |
6371 | /* Remove configuration on peer-group member. */ |
6372 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6373 | if (filter->map[direct].name) |
6374 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); | |
b4897fa5 | 6375 | route_map_counter_decrement(filter->map[direct].map); |
d62a17ae | 6376 | filter->map[direct].name = NULL; |
6377 | filter->map[direct].map = NULL; | |
70ee29b4 PM |
6378 | |
6379 | /* Process peer route updates. */ | |
6380 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 6381 | (direct == RMAP_OUT) ? 1 : 0); |
6382 | } | |
70ee29b4 | 6383 | |
d62a17ae | 6384 | return 0; |
6385 | } | |
6386 | ||
6387 | /* Set unsuppress-map to the peer. */ | |
6388 | int peer_unsuppress_map_set(struct peer *peer, afi_t afi, safi_t safi, | |
1de27621 | 6389 | const char *name, struct route_map *route_map) |
d62a17ae | 6390 | { |
70ee29b4 | 6391 | struct peer *member; |
d62a17ae | 6392 | struct bgp_filter *filter; |
d62a17ae | 6393 | struct listnode *node, *nnode; |
6394 | ||
70ee29b4 | 6395 | /* Set configuration on peer. */ |
d62a17ae | 6396 | filter = &peer->filter[afi][safi]; |
d62a17ae | 6397 | if (filter->usmap.name) |
6398 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
b4897fa5 | 6399 | route_map_counter_decrement(filter->usmap.map); |
d62a17ae | 6400 | filter->usmap.name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); |
1de27621 | 6401 | filter->usmap.map = route_map; |
b4897fa5 | 6402 | route_map_counter_increment(route_map); |
d62a17ae | 6403 | |
70ee29b4 | 6404 | /* Check if handling a regular peer. */ |
d62a17ae | 6405 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
6406 | /* Set override-flag and process peer route updates. */ |
6407 | SET_FLAG(peer->filter_override[afi][safi][0], | |
6408 | PEER_FT_UNSUPPRESS_MAP); | |
d62a17ae | 6409 | peer_on_policy_change(peer, afi, safi, 1); |
70ee29b4 PM |
6410 | |
6411 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6412 | return 0; |
6413 | } | |
6414 | ||
70ee29b4 PM |
6415 | /* |
6416 | * Set configuration on all peer-group members, unless they are | |
6417 | * explicitely overriding peer-group configuration. | |
6418 | */ | |
6419 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6420 | /* Skip peers with overridden configuration. */ | |
246bb5f0 | 6421 | if (CHECK_FLAG(member->filter_override[afi][safi][0], |
70ee29b4 PM |
6422 | PEER_FT_UNSUPPRESS_MAP)) |
6423 | continue; | |
d62a17ae | 6424 | |
70ee29b4 PM |
6425 | /* Set configuration on peer-group member. */ |
6426 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6427 | if (filter->usmap.name) |
6428 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
b4897fa5 | 6429 | route_map_counter_decrement(filter->usmap.map); |
d62a17ae | 6430 | filter->usmap.name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); |
1de27621 | 6431 | filter->usmap.map = route_map; |
b4897fa5 | 6432 | route_map_counter_increment(route_map); |
70ee29b4 PM |
6433 | |
6434 | /* Process peer route updates. */ | |
6435 | peer_on_policy_change(member, afi, safi, 1); | |
d62a17ae | 6436 | } |
70ee29b4 | 6437 | |
d62a17ae | 6438 | return 0; |
6439 | } | |
6440 | ||
6441 | /* Unset route-map from the peer. */ | |
6442 | int peer_unsuppress_map_unset(struct peer *peer, afi_t afi, safi_t safi) | |
718e3744 | 6443 | { |
70ee29b4 | 6444 | struct peer *member; |
d62a17ae | 6445 | struct bgp_filter *filter; |
d62a17ae | 6446 | struct listnode *node, *nnode; |
6447 | ||
70ee29b4 PM |
6448 | /* Unset override-flag unconditionally. */ |
6449 | UNSET_FLAG(peer->filter_override[afi][safi][0], PEER_FT_UNSUPPRESS_MAP); | |
718e3744 | 6450 | |
70ee29b4 PM |
6451 | /* Inherit configuration from peer-group if peer is member. */ |
6452 | if (peer_group_active(peer)) { | |
e7103a96 PM |
6453 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
6454 | filter[afi][safi].usmap.name, | |
6455 | MTYPE_BGP_FILTER_NAME); | |
6456 | PEER_ATTR_INHERIT(peer, peer->group, | |
6457 | filter[afi][safi].usmap.map); | |
70ee29b4 PM |
6458 | } else { |
6459 | /* Otherwise remove configuration from peer. */ | |
6460 | filter = &peer->filter[afi][safi]; | |
6461 | if (filter->usmap.name) | |
6462 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
b4897fa5 | 6463 | route_map_counter_decrement(filter->usmap.map); |
70ee29b4 PM |
6464 | filter->usmap.name = NULL; |
6465 | filter->usmap.map = NULL; | |
6466 | } | |
718e3744 | 6467 | |
70ee29b4 | 6468 | /* Check if handling a regular peer. */ |
d62a17ae | 6469 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 6470 | /* Process peer route updates. */ |
d62a17ae | 6471 | peer_on_policy_change(peer, afi, safi, 1); |
70ee29b4 PM |
6472 | |
6473 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6474 | return 0; |
6475 | } | |
718e3744 | 6476 | |
70ee29b4 PM |
6477 | /* |
6478 | * Remove configuration on all peer-group members, unless they are | |
6479 | * explicitely overriding peer-group configuration. | |
6480 | */ | |
6481 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6482 | /* Skip peers with overridden configuration. */ | |
6483 | if (CHECK_FLAG(member->filter_override[afi][safi][0], | |
6484 | PEER_FT_UNSUPPRESS_MAP)) | |
6485 | continue; | |
718e3744 | 6486 | |
70ee29b4 PM |
6487 | /* Remove configuration on peer-group member. */ |
6488 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6489 | if (filter->usmap.name) |
6490 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
b4897fa5 | 6491 | route_map_counter_decrement(filter->usmap.map); |
d62a17ae | 6492 | filter->usmap.name = NULL; |
6493 | filter->usmap.map = NULL; | |
70ee29b4 PM |
6494 | |
6495 | /* Process peer route updates. */ | |
6496 | peer_on_policy_change(member, afi, safi, 1); | |
d62a17ae | 6497 | } |
70ee29b4 | 6498 | |
d62a17ae | 6499 | return 0; |
6500 | } | |
718e3744 | 6501 | |
d62a17ae | 6502 | int peer_maximum_prefix_set(struct peer *peer, afi_t afi, safi_t safi, |
d7c0a89a QY |
6503 | uint32_t max, uint8_t threshold, int warning, |
6504 | uint16_t restart) | |
d62a17ae | 6505 | { |
598ce6bd | 6506 | struct peer *member; |
d62a17ae | 6507 | struct listnode *node, *nnode; |
6508 | ||
598ce6bd PM |
6509 | /* Set flags and configuration on peer. */ |
6510 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_MAX_PREFIX); | |
d62a17ae | 6511 | if (warning) |
598ce6bd | 6512 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_MAX_PREFIX_WARNING); |
d62a17ae | 6513 | else |
598ce6bd PM |
6514 | peer_af_flag_unset(peer, afi, safi, |
6515 | PEER_FLAG_MAX_PREFIX_WARNING); | |
6516 | ||
04e1c5bb QY |
6517 | peer->pmax[afi][safi] = max; |
6518 | peer->pmax_threshold[afi][safi] = threshold; | |
6519 | peer->pmax_restart[afi][safi] = restart; | |
d62a17ae | 6520 | |
598ce6bd PM |
6521 | /* Check if handling a regular peer. */ |
6522 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
6523 | /* Re-check if peer violates maximum-prefix. */ | |
d62a17ae | 6524 | if ((peer->status == Established) && (peer->afc[afi][safi])) |
6525 | bgp_maximum_prefix_overflow(peer, afi, safi, 1); | |
04e1c5bb | 6526 | |
598ce6bd PM |
6527 | /* Skip peer-group mechanics for regular peers. */ |
6528 | return 0; | |
6529 | } | |
04e1c5bb | 6530 | |
598ce6bd PM |
6531 | /* |
6532 | * Set flags and configuration on all peer-group members, unless they | |
6533 | * are explicitely overriding peer-group configuration. | |
6534 | */ | |
6535 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6536 | /* Skip peers with overridden configuration. */ | |
6537 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
6538 | PEER_FLAG_MAX_PREFIX)) | |
6539 | continue; | |
04e1c5bb | 6540 | |
598ce6bd PM |
6541 | /* Set flag and configuration on peer-group member. */ |
6542 | member->pmax[afi][safi] = max; | |
6543 | member->pmax_threshold[afi][safi] = threshold; | |
6544 | member->pmax_restart[afi][safi] = restart; | |
04e1c5bb | 6545 | if (warning) |
598ce6bd | 6546 | SET_FLAG(member->af_flags[afi][safi], |
04e1c5bb QY |
6547 | PEER_FLAG_MAX_PREFIX_WARNING); |
6548 | else | |
598ce6bd | 6549 | UNSET_FLAG(member->af_flags[afi][safi], |
04e1c5bb | 6550 | PEER_FLAG_MAX_PREFIX_WARNING); |
598ce6bd PM |
6551 | |
6552 | /* Re-check if peer violates maximum-prefix. */ | |
6553 | if ((member->status == Established) && (member->afc[afi][safi])) | |
6554 | bgp_maximum_prefix_overflow(member, afi, safi, 1); | |
d62a17ae | 6555 | } |
718e3744 | 6556 | |
d62a17ae | 6557 | return 0; |
6558 | } | |
718e3744 | 6559 | |
d62a17ae | 6560 | int peer_maximum_prefix_unset(struct peer *peer, afi_t afi, safi_t safi) |
6561 | { | |
598ce6bd PM |
6562 | /* Inherit configuration from peer-group if peer is member. */ |
6563 | if (peer_group_active(peer)) { | |
6564 | peer_af_flag_inherit(peer, afi, safi, PEER_FLAG_MAX_PREFIX); | |
6565 | peer_af_flag_inherit(peer, afi, safi, | |
6566 | PEER_FLAG_MAX_PREFIX_WARNING); | |
e7103a96 PM |
6567 | PEER_ATTR_INHERIT(peer, peer->group, pmax[afi][safi]); |
6568 | PEER_ATTR_INHERIT(peer, peer->group, pmax_threshold[afi][safi]); | |
6569 | PEER_ATTR_INHERIT(peer, peer->group, pmax_restart[afi][safi]); | |
04e1c5bb | 6570 | |
d62a17ae | 6571 | return 0; |
04e1c5bb | 6572 | } |
d62a17ae | 6573 | |
598ce6bd PM |
6574 | /* Remove flags and configuration from peer. */ |
6575 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_MAX_PREFIX); | |
6576 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_MAX_PREFIX_WARNING); | |
6577 | peer->pmax[afi][safi] = 0; | |
6578 | peer->pmax_threshold[afi][safi] = 0; | |
6579 | peer->pmax_restart[afi][safi] = 0; | |
6580 | ||
04e1c5bb | 6581 | /* |
598ce6bd PM |
6582 | * Remove flags and configuration from all peer-group members, unless |
6583 | * they are explicitely overriding peer-group configuration. | |
04e1c5bb | 6584 | */ |
6282637d RW |
6585 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
6586 | struct peer *member; | |
6587 | struct listnode *node; | |
598ce6bd | 6588 | |
6282637d RW |
6589 | for (ALL_LIST_ELEMENTS_RO(peer->group->peer, node, member)) { |
6590 | /* Skip peers with overridden configuration. */ | |
6591 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
6592 | PEER_FLAG_MAX_PREFIX)) | |
6593 | continue; | |
6594 | ||
6595 | /* Remove flag and configuration on peer-group member. | |
6596 | */ | |
6597 | UNSET_FLAG(member->af_flags[afi][safi], | |
6598 | PEER_FLAG_MAX_PREFIX); | |
6599 | UNSET_FLAG(member->af_flags[afi][safi], | |
6600 | PEER_FLAG_MAX_PREFIX_WARNING); | |
6601 | member->pmax[afi][safi] = 0; | |
6602 | member->pmax_threshold[afi][safi] = 0; | |
6603 | member->pmax_restart[afi][safi] = 0; | |
6604 | } | |
d62a17ae | 6605 | } |
598ce6bd | 6606 | |
d62a17ae | 6607 | return 0; |
718e3744 | 6608 | } |
6609 | ||
d62a17ae | 6610 | int is_ebgp_multihop_configured(struct peer *peer) |
718e3744 | 6611 | { |
d62a17ae | 6612 | struct peer_group *group; |
6613 | struct listnode *node, *nnode; | |
6614 | struct peer *peer1; | |
718e3744 | 6615 | |
d62a17ae | 6616 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
6617 | group = peer->group; | |
6618 | if ((peer_sort(peer) != BGP_PEER_IBGP) | |
c8d6f0d6 | 6619 | && (group->conf->ttl != BGP_DEFAULT_TTL)) |
d62a17ae | 6620 | return 1; |
718e3744 | 6621 | |
d62a17ae | 6622 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer1)) { |
6623 | if ((peer_sort(peer1) != BGP_PEER_IBGP) | |
c8d6f0d6 | 6624 | && (peer1->ttl != BGP_DEFAULT_TTL)) |
d62a17ae | 6625 | return 1; |
6626 | } | |
6627 | } else { | |
c8d6f0d6 DA |
6628 | if ((peer_sort(peer) != BGP_PEER_IBGP) |
6629 | && (peer->ttl != BGP_DEFAULT_TTL)) | |
d62a17ae | 6630 | return 1; |
6631 | } | |
6632 | return 0; | |
6633 | } | |
718e3744 | 6634 | |
d62a17ae | 6635 | /* Set # of hops between us and BGP peer. */ |
6636 | int peer_ttl_security_hops_set(struct peer *peer, int gtsm_hops) | |
6637 | { | |
6638 | struct peer_group *group; | |
6639 | struct listnode *node, *nnode; | |
6640 | int ret; | |
6641 | ||
6642 | zlog_debug("peer_ttl_security_hops_set: set gtsm_hops to %d for %s", | |
6643 | gtsm_hops, peer->host); | |
6644 | ||
6645 | /* We cannot configure ttl-security hops when ebgp-multihop is already | |
6646 | set. For non peer-groups, the check is simple. For peer-groups, | |
6647 | it's | |
6648 | slightly messy, because we need to check both the peer-group | |
6649 | structure | |
6650 | and all peer-group members for any trace of ebgp-multihop | |
6651 | configuration | |
6652 | before actually applying the ttl-security rules. Cisco really made a | |
6653 | mess of this configuration parameter, and OpenBGPD got it right. | |
6654 | */ | |
6655 | ||
6656 | if ((peer->gtsm_hops == 0) && (peer->sort != BGP_PEER_IBGP)) { | |
6657 | if (is_ebgp_multihop_configured(peer)) | |
6658 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
6659 | ||
6660 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
6661 | peer->gtsm_hops = gtsm_hops; | |
6662 | ||
6663 | /* Calling ebgp multihop also resets the session. | |
6664 | * On restart, NHT will get setup correctly as will the | |
6665 | * min & max ttls on the socket. The return value is | |
6666 | * irrelevant. | |
6667 | */ | |
6668 | ret = peer_ebgp_multihop_set(peer, MAXTTL); | |
6669 | ||
6670 | if (ret != 0) | |
6671 | return ret; | |
6672 | } else { | |
6673 | group = peer->group; | |
6674 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, | |
6675 | peer)) { | |
6676 | peer->gtsm_hops = group->conf->gtsm_hops; | |
6677 | ||
6678 | /* Calling ebgp multihop also resets the | |
6679 | * session. | |
6680 | * On restart, NHT will get setup correctly as | |
6681 | * will the | |
6682 | * min & max ttls on the socket. The return | |
6683 | * value is | |
6684 | * irrelevant. | |
6685 | */ | |
6686 | peer_ebgp_multihop_set(peer, MAXTTL); | |
6687 | } | |
6688 | } | |
6689 | } else { | |
6690 | /* Post the first gtsm setup or if its ibgp, maxttl setting | |
6691 | * isn't | |
6692 | * necessary, just set the minttl. | |
6693 | */ | |
6694 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
6695 | peer->gtsm_hops = gtsm_hops; | |
6696 | ||
6697 | if (peer->fd >= 0) | |
6698 | sockopt_minttl(peer->su.sa.sa_family, peer->fd, | |
6699 | MAXTTL + 1 - gtsm_hops); | |
6700 | if ((peer->status < Established) && peer->doppelganger | |
6701 | && (peer->doppelganger->fd >= 0)) | |
6702 | sockopt_minttl(peer->su.sa.sa_family, | |
6703 | peer->doppelganger->fd, | |
6704 | MAXTTL + 1 - gtsm_hops); | |
6705 | } else { | |
6706 | group = peer->group; | |
6707 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, | |
6708 | peer)) { | |
6709 | peer->gtsm_hops = group->conf->gtsm_hops; | |
6710 | ||
6711 | /* Change setting of existing peer | |
6712 | * established then change value (may break | |
6713 | * connectivity) | |
6714 | * not established yet (teardown session and | |
6715 | * restart) | |
6716 | * no session then do nothing (will get | |
6717 | * handled by next connection) | |
6718 | */ | |
6719 | if (peer->fd >= 0 && peer->gtsm_hops != 0) | |
6720 | sockopt_minttl( | |
6721 | peer->su.sa.sa_family, peer->fd, | |
6722 | MAXTTL + 1 - peer->gtsm_hops); | |
6723 | if ((peer->status < Established) | |
6724 | && peer->doppelganger | |
6725 | && (peer->doppelganger->fd >= 0)) | |
6726 | sockopt_minttl(peer->su.sa.sa_family, | |
6727 | peer->doppelganger->fd, | |
6728 | MAXTTL + 1 - gtsm_hops); | |
6729 | } | |
6730 | } | |
6731 | } | |
718e3744 | 6732 | |
d62a17ae | 6733 | return 0; |
718e3744 | 6734 | } |
6735 | ||
d62a17ae | 6736 | int peer_ttl_security_hops_unset(struct peer *peer) |
6737 | { | |
6738 | struct peer_group *group; | |
6739 | struct listnode *node, *nnode; | |
6740 | int ret = 0; | |
6741 | ||
6742 | zlog_debug("peer_ttl_security_hops_unset: set gtsm_hops to zero for %s", | |
6743 | peer->host); | |
6744 | ||
6745 | /* if a peer-group member, then reset to peer-group default rather than | |
6746 | * 0 */ | |
6747 | if (peer_group_active(peer)) | |
6748 | peer->gtsm_hops = peer->group->conf->gtsm_hops; | |
6749 | else | |
6750 | peer->gtsm_hops = 0; | |
6751 | ||
6752 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
6753 | /* Invoking ebgp_multihop_set will set the TTL back to the | |
6754 | * original | |
6755 | * value as well as restting the NHT and such. The session is | |
6756 | * reset. | |
6757 | */ | |
6758 | if (peer->sort == BGP_PEER_EBGP) | |
6759 | ret = peer_ebgp_multihop_unset(peer); | |
6760 | else { | |
6761 | if (peer->fd >= 0) | |
6762 | sockopt_minttl(peer->su.sa.sa_family, peer->fd, | |
6763 | 0); | |
6764 | ||
6765 | if ((peer->status < Established) && peer->doppelganger | |
6766 | && (peer->doppelganger->fd >= 0)) | |
6767 | sockopt_minttl(peer->su.sa.sa_family, | |
6768 | peer->doppelganger->fd, 0); | |
6769 | } | |
6770 | } else { | |
6771 | group = peer->group; | |
6772 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
6773 | peer->gtsm_hops = 0; | |
6774 | if (peer->sort == BGP_PEER_EBGP) | |
6775 | ret = peer_ebgp_multihop_unset(peer); | |
6776 | else { | |
6777 | if (peer->fd >= 0) | |
6778 | sockopt_minttl(peer->su.sa.sa_family, | |
6779 | peer->fd, 0); | |
6780 | ||
6781 | if ((peer->status < Established) | |
6782 | && peer->doppelganger | |
6783 | && (peer->doppelganger->fd >= 0)) | |
6784 | sockopt_minttl(peer->su.sa.sa_family, | |
6785 | peer->doppelganger->fd, | |
6786 | 0); | |
6787 | } | |
6788 | } | |
6789 | } | |
718e3744 | 6790 | |
d62a17ae | 6791 | return ret; |
6792 | } | |
6793 | ||
6794 | /* | |
6795 | * If peer clear is invoked in a loop for all peers on the BGP instance, | |
6796 | * it may end up freeing the doppelganger, and if this was the next node | |
6797 | * to the current node, we would end up accessing the freed next node. | |
6798 | * Pass along additional parameter which can be updated if next node | |
6799 | * is freed; only required when walking the peer list on BGP instance. | |
6800 | */ | |
6801 | int peer_clear(struct peer *peer, struct listnode **nnode) | |
6802 | { | |
6803 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_SHUTDOWN)) { | |
6804 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_PREFIX_OVERFLOW)) { | |
6805 | UNSET_FLAG(peer->sflags, PEER_STATUS_PREFIX_OVERFLOW); | |
6806 | if (peer->t_pmax_restart) { | |
6807 | BGP_TIMER_OFF(peer->t_pmax_restart); | |
6808 | if (bgp_debug_neighbor_events(peer)) | |
6809 | zlog_debug( | |
6810 | "%s Maximum-prefix restart timer canceled", | |
6811 | peer->host); | |
6812 | } | |
6813 | BGP_EVENT_ADD(peer, BGP_Start); | |
6814 | return 0; | |
6815 | } | |
6816 | ||
6817 | peer->v_start = BGP_INIT_START_TIMER; | |
6818 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
6819 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
6820 | BGP_NOTIFY_CEASE_ADMIN_RESET); | |
6821 | else | |
6822 | bgp_session_reset_safe(peer, nnode); | |
718e3744 | 6823 | } |
d62a17ae | 6824 | return 0; |
718e3744 | 6825 | } |
6b0655a2 | 6826 | |
d62a17ae | 6827 | int peer_clear_soft(struct peer *peer, afi_t afi, safi_t safi, |
6828 | enum bgp_clear_type stype) | |
718e3744 | 6829 | { |
d62a17ae | 6830 | struct peer_af *paf; |
718e3744 | 6831 | |
d62a17ae | 6832 | if (peer->status != Established) |
6833 | return 0; | |
718e3744 | 6834 | |
d62a17ae | 6835 | if (!peer->afc[afi][safi]) |
6836 | return BGP_ERR_AF_UNCONFIGURED; | |
718e3744 | 6837 | |
d62a17ae | 6838 | peer->rtt = sockopt_tcp_rtt(peer->fd); |
718e3744 | 6839 | |
d62a17ae | 6840 | if (stype == BGP_CLEAR_SOFT_OUT || stype == BGP_CLEAR_SOFT_BOTH) { |
6841 | /* Clear the "neighbor x.x.x.x default-originate" flag */ | |
6842 | paf = peer_af_find(peer, afi, safi); | |
6843 | if (paf && paf->subgroup | |
6844 | && CHECK_FLAG(paf->subgroup->sflags, | |
6845 | SUBGRP_STATUS_DEFAULT_ORIGINATE)) | |
6846 | UNSET_FLAG(paf->subgroup->sflags, | |
6847 | SUBGRP_STATUS_DEFAULT_ORIGINATE); | |
718e3744 | 6848 | |
d62a17ae | 6849 | bgp_announce_route(peer, afi, safi); |
6850 | } | |
718e3744 | 6851 | |
d62a17ae | 6852 | if (stype == BGP_CLEAR_SOFT_IN_ORF_PREFIX) { |
6853 | if (CHECK_FLAG(peer->af_cap[afi][safi], | |
6854 | PEER_CAP_ORF_PREFIX_SM_ADV) | |
6855 | && (CHECK_FLAG(peer->af_cap[afi][safi], | |
6856 | PEER_CAP_ORF_PREFIX_RM_RCV) | |
6857 | || CHECK_FLAG(peer->af_cap[afi][safi], | |
6858 | PEER_CAP_ORF_PREFIX_RM_OLD_RCV))) { | |
6859 | struct bgp_filter *filter = &peer->filter[afi][safi]; | |
d7c0a89a | 6860 | uint8_t prefix_type; |
d62a17ae | 6861 | |
6862 | if (CHECK_FLAG(peer->af_cap[afi][safi], | |
6863 | PEER_CAP_ORF_PREFIX_RM_RCV)) | |
6864 | prefix_type = ORF_TYPE_PREFIX; | |
6865 | else | |
6866 | prefix_type = ORF_TYPE_PREFIX_OLD; | |
6867 | ||
6868 | if (filter->plist[FILTER_IN].plist) { | |
6869 | if (CHECK_FLAG(peer->af_sflags[afi][safi], | |
6870 | PEER_STATUS_ORF_PREFIX_SEND)) | |
6871 | bgp_route_refresh_send( | |
6872 | peer, afi, safi, prefix_type, | |
6873 | REFRESH_DEFER, 1); | |
6874 | bgp_route_refresh_send(peer, afi, safi, | |
6875 | prefix_type, | |
6876 | REFRESH_IMMEDIATE, 0); | |
6877 | } else { | |
6878 | if (CHECK_FLAG(peer->af_sflags[afi][safi], | |
6879 | PEER_STATUS_ORF_PREFIX_SEND)) | |
6880 | bgp_route_refresh_send( | |
6881 | peer, afi, safi, prefix_type, | |
6882 | REFRESH_IMMEDIATE, 1); | |
6883 | else | |
6884 | bgp_route_refresh_send(peer, afi, safi, | |
6885 | 0, 0, 0); | |
6886 | } | |
6887 | return 0; | |
6888 | } | |
6889 | } | |
718e3744 | 6890 | |
d62a17ae | 6891 | if (stype == BGP_CLEAR_SOFT_IN || stype == BGP_CLEAR_SOFT_BOTH |
6892 | || stype == BGP_CLEAR_SOFT_IN_ORF_PREFIX) { | |
6893 | /* If neighbor has soft reconfiguration inbound flag. | |
6894 | Use Adj-RIB-In database. */ | |
6895 | if (CHECK_FLAG(peer->af_flags[afi][safi], | |
6896 | PEER_FLAG_SOFT_RECONFIG)) | |
6897 | bgp_soft_reconfig_in(peer, afi, safi); | |
6898 | else { | |
6899 | /* If neighbor has route refresh capability, send route | |
6900 | refresh | |
6901 | message to the peer. */ | |
6902 | if (CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_OLD_RCV) | |
6903 | || CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_NEW_RCV)) | |
6904 | bgp_route_refresh_send(peer, afi, safi, 0, 0, | |
6905 | 0); | |
6906 | else | |
6907 | return BGP_ERR_SOFT_RECONFIG_UNCONFIGURED; | |
6908 | } | |
6909 | } | |
6910 | return 0; | |
718e3744 | 6911 | } |
6912 | ||
d62a17ae | 6913 | /* Display peer uptime.*/ |
9f049418 | 6914 | char *peer_uptime(time_t uptime2, char *buf, size_t len, bool use_json, |
d62a17ae | 6915 | json_object *json) |
6916 | { | |
6917 | time_t uptime1, epoch_tbuf; | |
6918 | struct tm *tm; | |
6919 | ||
d62a17ae | 6920 | /* If there is no connection has been done before print `never'. */ |
6921 | if (uptime2 == 0) { | |
6922 | if (use_json) { | |
6923 | json_object_string_add(json, "peerUptime", "never"); | |
6924 | json_object_int_add(json, "peerUptimeMsec", 0); | |
6925 | } else | |
6926 | snprintf(buf, len, "never"); | |
6927 | return buf; | |
6928 | } | |
718e3744 | 6929 | |
d62a17ae | 6930 | /* Get current time. */ |
6931 | uptime1 = bgp_clock(); | |
6932 | uptime1 -= uptime2; | |
6933 | tm = gmtime(&uptime1); | |
718e3744 | 6934 | |
d62a17ae | 6935 | if (uptime1 < ONE_DAY_SECOND) |
6936 | snprintf(buf, len, "%02d:%02d:%02d", tm->tm_hour, tm->tm_min, | |
6937 | tm->tm_sec); | |
6938 | else if (uptime1 < ONE_WEEK_SECOND) | |
6939 | snprintf(buf, len, "%dd%02dh%02dm", tm->tm_yday, tm->tm_hour, | |
6940 | tm->tm_min); | |
6941 | else if (uptime1 < ONE_YEAR_SECOND) | |
6942 | snprintf(buf, len, "%02dw%dd%02dh", tm->tm_yday / 7, | |
6943 | tm->tm_yday - ((tm->tm_yday / 7) * 7), tm->tm_hour); | |
6944 | else | |
6945 | snprintf(buf, len, "%02dy%02dw%dd", tm->tm_year - 70, | |
6946 | tm->tm_yday / 7, | |
6947 | tm->tm_yday - ((tm->tm_yday / 7) * 7)); | |
6948 | ||
6949 | if (use_json) { | |
6950 | epoch_tbuf = time(NULL) - uptime1; | |
6951 | json_object_string_add(json, "peerUptime", buf); | |
6952 | json_object_int_add(json, "peerUptimeMsec", uptime1 * 1000); | |
6953 | json_object_int_add(json, "peerUptimeEstablishedEpoch", | |
6954 | epoch_tbuf); | |
6955 | } | |
718e3744 | 6956 | |
d62a17ae | 6957 | return buf; |
718e3744 | 6958 | } |
6959 | ||
c2d020ad | 6960 | void bgp_master_init(struct thread_master *master, const int buffer_size) |
718e3744 | 6961 | { |
d62a17ae | 6962 | qobj_init(); |
0e64d123 | 6963 | |
d62a17ae | 6964 | memset(&bgp_master, 0, sizeof(struct bgp_master)); |
718e3744 | 6965 | |
d62a17ae | 6966 | bm = &bgp_master; |
6967 | bm->bgp = list_new(); | |
6968 | bm->listen_sockets = list_new(); | |
6969 | bm->port = BGP_PORT_DEFAULT; | |
6970 | bm->master = master; | |
6971 | bm->start_time = bgp_clock(); | |
6972 | bm->t_rmap_update = NULL; | |
6973 | bm->rmap_update_timer = RMAP_DEFAULT_UPDATE_TIMER; | |
97b4a0ec | 6974 | bm->terminating = false; |
c2d020ad | 6975 | bm->socket_buffer = buffer_size; |
495f0b13 | 6976 | |
d62a17ae | 6977 | bgp_process_queue_init(); |
b8fd6a15 | 6978 | |
48ecf8f5 | 6979 | bgp_mac_init(); |
e9eb5f63 | 6980 | /* init the rd id space. |
6981 | assign 0th index in the bitfield, | |
523cafc4 | 6982 | so that we start with id 1 |
6983 | */ | |
e9eb5f63 | 6984 | bf_init(bm->rd_idspace, UINT16_MAX); |
6985 | bf_assign_zero_index(bm->rd_idspace); | |
6986 | ||
955bfd98 | 6987 | /* mpls label dynamic allocation pool */ |
e70e9f8e | 6988 | bgp_lp_init(bm->master, &bm->labelpool); |
955bfd98 | 6989 | |
d62a17ae | 6990 | QOBJ_REG(bm, bgp_master); |
718e3744 | 6991 | } |
200df115 | 6992 | |
ad4cbda1 | 6993 | /* |
009b18fc | 6994 | * Free up connected routes and interfaces for a BGP instance. Invoked upon |
6995 | * instance delete (non-default only) or BGP exit. | |
ad4cbda1 | 6996 | */ |
d62a17ae | 6997 | static void bgp_if_finish(struct bgp *bgp) |
ad4cbda1 | 6998 | { |
ee66b77f | 6999 | struct vrf *vrf; |
d62a17ae | 7000 | struct interface *ifp; |
7001 | ||
ee66b77f PG |
7002 | vrf = bgp_vrf_lookup_by_instance_type(bgp); |
7003 | ||
f4e14fdb | 7004 | if (bgp->inst_type == BGP_INSTANCE_TYPE_VIEW || !vrf) |
d62a17ae | 7005 | return; |
ad4cbda1 | 7006 | |
451fda4f | 7007 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 7008 | struct listnode *c_node, *c_nnode; |
7009 | struct connected *c; | |
ad4cbda1 | 7010 | |
d62a17ae | 7011 | for (ALL_LIST_ELEMENTS(ifp->connected, c_node, c_nnode, c)) |
7012 | bgp_connected_delete(bgp, c); | |
7013 | } | |
ad4cbda1 | 7014 | } |
6b0655a2 | 7015 | |
d62a17ae | 7016 | static void bgp_viewvrf_autocomplete(vector comps, struct cmd_token *token) |
18c57037 | 7017 | { |
d62a17ae | 7018 | struct vrf *vrf = NULL; |
7019 | struct listnode *next; | |
7020 | struct bgp *bgp; | |
18c57037 | 7021 | |
6a8ca00f PG |
7022 | RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) |
7023 | vector_set(comps, XSTRDUP(MTYPE_COMPLETION, vrf->name)); | |
18c57037 | 7024 | |
d62a17ae | 7025 | for (ALL_LIST_ELEMENTS_RO(bm->bgp, next, bgp)) { |
7026 | if (bgp->inst_type != BGP_INSTANCE_TYPE_VIEW) | |
7027 | continue; | |
18c57037 | 7028 | |
d62a17ae | 7029 | vector_set(comps, XSTRDUP(MTYPE_COMPLETION, bgp->name)); |
7030 | } | |
18c57037 DS |
7031 | } |
7032 | ||
2ed9fe4a DL |
7033 | static void bgp_instasn_autocomplete(vector comps, struct cmd_token *token) |
7034 | { | |
7035 | struct listnode *next, *next2; | |
7036 | struct bgp *bgp, *bgp2; | |
7037 | char buf[11]; | |
7038 | ||
7039 | for (ALL_LIST_ELEMENTS_RO(bm->bgp, next, bgp)) { | |
7040 | /* deduplicate */ | |
7041 | for (ALL_LIST_ELEMENTS_RO(bm->bgp, next2, bgp2)) { | |
7042 | if (bgp2->as == bgp->as) | |
7043 | break; | |
7044 | if (bgp2 == bgp) | |
7045 | break; | |
7046 | } | |
7047 | if (bgp2 != bgp) | |
7048 | continue; | |
7049 | ||
7050 | snprintf(buf, sizeof(buf), "%u", bgp->as); | |
7051 | vector_set(comps, XSTRDUP(MTYPE_COMPLETION, buf)); | |
7052 | } | |
7053 | } | |
7054 | ||
18c57037 | 7055 | static const struct cmd_variable_handler bgp_viewvrf_var_handlers[] = { |
d62a17ae | 7056 | {.tokenname = "VIEWVRFNAME", .completions = bgp_viewvrf_autocomplete}, |
2ed9fe4a | 7057 | {.varname = "instasn", .completions = bgp_instasn_autocomplete}, |
d62a17ae | 7058 | {.completions = NULL}, |
18c57037 DS |
7059 | }; |
7060 | ||
1ac267a2 DL |
7061 | struct frr_pthread *bgp_pth_io; |
7062 | struct frr_pthread *bgp_pth_ka; | |
7063 | ||
4d762f26 | 7064 | static void bgp_pthreads_init(void) |
2d4ee774 | 7065 | { |
1ac267a2 DL |
7066 | assert(!bgp_pth_io); |
7067 | assert(!bgp_pth_ka); | |
7068 | ||
a715eab3 | 7069 | struct frr_pthread_attr io = { |
a715eab3 QY |
7070 | .start = frr_pthread_attr_default.start, |
7071 | .stop = frr_pthread_attr_default.stop, | |
a715eab3 QY |
7072 | }; |
7073 | struct frr_pthread_attr ka = { | |
a715eab3 QY |
7074 | .start = bgp_keepalives_start, |
7075 | .stop = bgp_keepalives_stop, | |
a715eab3 | 7076 | }; |
1ac267a2 DL |
7077 | bgp_pth_io = frr_pthread_new(&io, "BGP I/O thread", "bgpd_io"); |
7078 | bgp_pth_ka = frr_pthread_new(&ka, "BGP Keepalives thread", "bgpd_ka"); | |
419dfe6a QY |
7079 | } |
7080 | ||
4d762f26 | 7081 | void bgp_pthreads_run(void) |
419dfe6a | 7082 | { |
1ac267a2 DL |
7083 | frr_pthread_run(bgp_pth_io, NULL); |
7084 | frr_pthread_run(bgp_pth_ka, NULL); | |
88b24dee | 7085 | |
a715eab3 | 7086 | /* Wait until threads are ready. */ |
1ac267a2 DL |
7087 | frr_pthread_wait_running(bgp_pth_io); |
7088 | frr_pthread_wait_running(bgp_pth_ka); | |
2d4ee774 QY |
7089 | } |
7090 | ||
4d762f26 | 7091 | void bgp_pthreads_finish(void) |
2d4ee774 | 7092 | { |
0ca8b79f | 7093 | frr_pthread_stop_all(); |
2d4ee774 QY |
7094 | } |
7095 | ||
f533be73 | 7096 | void bgp_init(unsigned short instance) |
718e3744 | 7097 | { |
fc9a856f | 7098 | |
d62a17ae | 7099 | /* allocates some vital data structures used by peer commands in |
7100 | * vty_init */ | |
718e3744 | 7101 | |
419dfe6a QY |
7102 | /* pre-init pthreads */ |
7103 | bgp_pthreads_init(); | |
7104 | ||
d62a17ae | 7105 | /* Init zebra. */ |
f533be73 | 7106 | bgp_zebra_init(bm->master, instance); |
718e3744 | 7107 | |
65efcfce | 7108 | #if ENABLE_BGP_VNC |
d62a17ae | 7109 | vnc_zebra_init(bm->master); |
65efcfce LB |
7110 | #endif |
7111 | ||
d62a17ae | 7112 | /* BGP VTY commands installation. */ |
7113 | bgp_vty_init(); | |
7114 | ||
7115 | /* BGP inits. */ | |
7116 | bgp_attr_init(); | |
7117 | bgp_debug_init(); | |
7118 | bgp_dump_init(); | |
7119 | bgp_route_init(); | |
7120 | bgp_route_map_init(); | |
7121 | bgp_scan_vty_init(); | |
7122 | bgp_mplsvpn_init(); | |
65efcfce | 7123 | #if ENABLE_BGP_VNC |
d62a17ae | 7124 | rfapi_init(); |
65efcfce | 7125 | #endif |
d62a17ae | 7126 | bgp_ethernetvpn_init(); |
7c40bf39 | 7127 | bgp_flowspec_vty_init(); |
d62a17ae | 7128 | |
7129 | /* Access list initialize. */ | |
7130 | access_list_init(); | |
7131 | access_list_add_hook(peer_distribute_update); | |
7132 | access_list_delete_hook(peer_distribute_update); | |
7133 | ||
7134 | /* Filter list initialize. */ | |
7135 | bgp_filter_init(); | |
7136 | as_list_add_hook(peer_aslist_add); | |
7137 | as_list_delete_hook(peer_aslist_del); | |
7138 | ||
7139 | /* Prefix list initialize.*/ | |
7140 | prefix_list_init(); | |
7141 | prefix_list_add_hook(peer_prefix_list_update); | |
7142 | prefix_list_delete_hook(peer_prefix_list_update); | |
7143 | ||
7144 | /* Community list initialize. */ | |
7145 | bgp_clist = community_list_init(); | |
7146 | ||
7147 | /* BFD init */ | |
7148 | bgp_bfd_init(); | |
7149 | ||
7150 | cmd_variable_handler_register(bgp_viewvrf_var_handlers); | |
7151 | } | |
7152 | ||
7153 | void bgp_terminate(void) | |
7154 | { | |
7155 | struct bgp *bgp; | |
7156 | struct peer *peer; | |
7157 | struct listnode *node, *nnode; | |
7158 | struct listnode *mnode, *mnnode; | |
7159 | ||
7160 | QOBJ_UNREG(bm); | |
7161 | ||
7162 | /* Close the listener sockets first as this prevents peers from | |
7163 | * attempting | |
7164 | * to reconnect on receiving the peer unconfig message. In the presence | |
7165 | * of a large number of peers this will ensure that no peer is left with | |
7166 | * a dangling connection | |
7167 | */ | |
7168 | /* reverse bgp_master_init */ | |
7169 | bgp_close(); | |
c3004bc4 | 7170 | |
d62a17ae | 7171 | if (bm->listen_sockets) |
6a154c88 | 7172 | list_delete(&bm->listen_sockets); |
d62a17ae | 7173 | |
7174 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) | |
7175 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
7176 | if (peer->status == Established | |
7177 | || peer->status == OpenSent | |
7178 | || peer->status == OpenConfirm) | |
7179 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
7180 | BGP_NOTIFY_CEASE_PEER_UNCONFIG); | |
7181 | ||
e208c8f9 DS |
7182 | if (bm->process_main_queue) |
7183 | work_queue_free_and_null(&bm->process_main_queue); | |
d62a17ae | 7184 | |
7185 | if (bm->t_rmap_update) | |
7186 | BGP_TIMER_OFF(bm->t_rmap_update); | |
955bfd98 | 7187 | |
48ecf8f5 | 7188 | bgp_mac_finish(); |
545acafb | 7189 | } |
dcc1615e DD |
7190 | |
7191 | struct peer *peer_lookup_in_view(struct vty *vty, struct bgp *bgp, | |
7192 | const char *ip_str, bool use_json) | |
7193 | { | |
7194 | int ret; | |
7195 | struct peer *peer; | |
7196 | union sockunion su; | |
7197 | ||
7198 | /* Get peer sockunion. */ | |
7199 | ret = str2sockunion(ip_str, &su); | |
7200 | if (ret < 0) { | |
7201 | peer = peer_lookup_by_conf_if(bgp, ip_str); | |
7202 | if (!peer) { | |
7203 | peer = peer_lookup_by_hostname(bgp, ip_str); | |
7204 | ||
7205 | if (!peer) { | |
7206 | if (use_json) { | |
7207 | json_object *json_no = NULL; | |
7208 | json_no = json_object_new_object(); | |
7209 | json_object_string_add( | |
7210 | json_no, | |
7211 | "malformedAddressOrName", | |
7212 | ip_str); | |
7213 | vty_out(vty, "%s\n", | |
7214 | json_object_to_json_string_ext( | |
7215 | json_no, | |
7216 | JSON_C_TO_STRING_PRETTY)); | |
7217 | json_object_free(json_no); | |
7218 | } else | |
7219 | vty_out(vty, | |
7220 | "%% Malformed address or name: %s\n", | |
7221 | ip_str); | |
7222 | return NULL; | |
7223 | } | |
7224 | } | |
7225 | return peer; | |
7226 | } | |
7227 | ||
7228 | /* Peer structure lookup. */ | |
7229 | peer = peer_lookup(bgp, &su); | |
7230 | if (!peer) { | |
7231 | if (use_json) { | |
7232 | json_object *json_no = NULL; | |
7233 | json_no = json_object_new_object(); | |
7234 | json_object_string_add(json_no, "warning", | |
7235 | "No such neighbor in this view/vrf"); | |
7236 | vty_out(vty, "%s\n", | |
7237 | json_object_to_json_string_ext( | |
7238 | json_no, JSON_C_TO_STRING_PRETTY)); | |
7239 | json_object_free(json_no); | |
7240 | } else | |
7241 | vty_out(vty, "No such neighbor in this view/vrf\n"); | |
7242 | return NULL; | |
7243 | } | |
7244 | ||
7245 | return peer; | |
7246 | } | |
7247 | ||
794b37d5 | 7248 | void bgp_gr_apply_running_config(void) |
7249 | { | |
7250 | struct peer *peer = NULL; | |
7251 | struct bgp *bgp = NULL; | |
7252 | struct listnode *node, *nnode; | |
dc95985f | 7253 | bool gr_router_detected = false; |
794b37d5 | 7254 | |
7255 | if (BGP_DEBUG(graceful_restart, GRACEFUL_RESTART)) | |
2ba1fe69 | 7256 | zlog_debug("[BGP_GR] %s called !", |
794b37d5 | 7257 | __func__); |
7258 | ||
dc95985f | 7259 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) { |
7260 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
794b37d5 | 7261 | bgp_peer_gr_flags_update(peer); |
dc95985f | 7262 | if (CHECK_FLAG(peer->flags, |
7263 | PEER_FLAG_GRACEFUL_RESTART)) | |
7264 | gr_router_detected = true; | |
7265 | } | |
7266 | ||
7267 | if (gr_router_detected && | |
7268 | bgp->present_zebra_gr_state == ZEBRA_GR_DISABLE) { | |
2ba1fe69 | 7269 | bgp_zebra_send_capabilities(bgp, true); |
dc95985f | 7270 | } else if (!gr_router_detected && |
7271 | bgp->present_zebra_gr_state == ZEBRA_GR_ENABLE) { | |
2ba1fe69 | 7272 | bgp_zebra_send_capabilities(bgp, false); |
dc95985f | 7273 | } |
7274 | ||
7275 | gr_router_detected = false; | |
7276 | } | |
794b37d5 | 7277 | } |