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718e3744 | 1 | /* BGP-4, BGP-4+ daemon program |
896014f4 DL |
2 | * Copyright (C) 1996, 97, 98, 99, 2000 Kunihiro Ishiguro |
3 | * | |
4 | * This file is part of GNU Zebra. | |
5 | * | |
6 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2, or (at your option) any | |
9 | * later version. | |
10 | * | |
11 | * GNU Zebra is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License along | |
17 | * with this program; see the file COPYING; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
718e3744 | 20 | |
21 | #include <zebra.h> | |
22 | ||
23 | #include "prefix.h" | |
24 | #include "thread.h" | |
25 | #include "buffer.h" | |
26 | #include "stream.h" | |
74ffbfe6 | 27 | #include "ringbuf.h" |
718e3744 | 28 | #include "command.h" |
29 | #include "sockunion.h" | |
e9a0c656 | 30 | #include "sockopt.h" |
718e3744 | 31 | #include "network.h" |
32 | #include "memory.h" | |
33 | #include "filter.h" | |
34 | #include "routemap.h" | |
718e3744 | 35 | #include "log.h" |
36 | #include "plist.h" | |
37 | #include "linklist.h" | |
200df115 | 38 | #include "workqueue.h" |
3f9c7369 | 39 | #include "queue.h" |
88177fe3 | 40 | #include "zclient.h" |
7f342629 | 41 | #include "bfd.h" |
dd793e4a DW |
42 | #include "hash.h" |
43 | #include "jhash.h" | |
587ff0fd | 44 | #include "table.h" |
4dcadbef | 45 | #include "lib/json.h" |
0ca8b79f | 46 | #include "frr_pthread.h" |
92708db6 | 47 | #include "bitfield.h" |
718e3744 | 48 | |
49 | #include "bgpd/bgpd.h" | |
50 | #include "bgpd/bgp_table.h" | |
51 | #include "bgpd/bgp_aspath.h" | |
52 | #include "bgpd/bgp_route.h" | |
53 | #include "bgpd/bgp_dump.h" | |
54 | #include "bgpd/bgp_debug.h" | |
14454c9f | 55 | #include "bgpd/bgp_errors.h" |
718e3744 | 56 | #include "bgpd/bgp_community.h" |
57 | #include "bgpd/bgp_attr.h" | |
58 | #include "bgpd/bgp_regex.h" | |
59 | #include "bgpd/bgp_clist.h" | |
60 | #include "bgpd/bgp_fsm.h" | |
61 | #include "bgpd/bgp_packet.h" | |
62 | #include "bgpd/bgp_zebra.h" | |
63 | #include "bgpd/bgp_open.h" | |
64 | #include "bgpd/bgp_filter.h" | |
65 | #include "bgpd/bgp_nexthop.h" | |
66 | #include "bgpd/bgp_damp.h" | |
67 | #include "bgpd/bgp_mplsvpn.h" | |
65efcfce | 68 | #if ENABLE_BGP_VNC |
f8b6f499 LB |
69 | #include "bgpd/rfapi/bgp_rfapi_cfg.h" |
70 | #include "bgpd/rfapi/rfapi_backend.h" | |
65efcfce | 71 | #endif |
7ef5a232 | 72 | #include "bgpd/bgp_evpn.h" |
718e3744 | 73 | #include "bgpd/bgp_advertise.h" |
74 | #include "bgpd/bgp_network.h" | |
75 | #include "bgpd/bgp_vty.h" | |
165b5fff | 76 | #include "bgpd/bgp_mpath.h" |
fc9a856f | 77 | #include "bgpd/bgp_nht.h" |
3f9c7369 | 78 | #include "bgpd/bgp_updgrp.h" |
c43ed2e4 | 79 | #include "bgpd/bgp_bfd.h" |
4a1ab8e4 | 80 | #include "bgpd/bgp_memory.h" |
784d3a42 | 81 | #include "bgpd/bgp_evpn_vty.h" |
2d4ee774 | 82 | #include "bgpd/bgp_keepalives.h" |
56257a44 | 83 | #include "bgpd/bgp_io.h" |
41d6d607 | 84 | #include "bgpd/bgp_ecommunity.h" |
7c40bf39 | 85 | #include "bgpd/bgp_flowspec.h" |
955bfd98 | 86 | #include "bgpd/bgp_labelpool.h" |
f3d32faa | 87 | #include "bgpd/bgp_pbr.h" |
dcc68b5e | 88 | #include "bgpd/bgp_addpath.h" |
85c8d83b | 89 | #include "bgpd/bgp_evpn_private.h" |
48ecf8f5 | 90 | #include "bgpd/bgp_mac.h" |
73d70fa6 DL |
91 | |
92 | DEFINE_MTYPE_STATIC(BGPD, PEER_TX_SHUTDOWN_MSG, "Peer shutdown message (TX)"); | |
85c8d83b | 93 | DEFINE_MTYPE_STATIC(BGPD, BGP_EVPN_INFO, "BGP EVPN instance information"); |
19df7279 DL |
94 | DEFINE_QOBJ_TYPE(bgp_master) |
95 | DEFINE_QOBJ_TYPE(bgp) | |
96 | DEFINE_QOBJ_TYPE(peer) | |
2b9bcf30 | 97 | DEFINE_HOOK(bgp_inst_delete, (struct bgp *bgp), (bgp)) |
19df7279 | 98 | |
718e3744 | 99 | /* BGP process wide configuration. */ |
100 | static struct bgp_master bgp_master; | |
101 | ||
102 | /* BGP process wide configuration pointer to export. */ | |
103 | struct bgp_master *bm; | |
104 | ||
105 | /* BGP community-list. */ | |
106 | struct community_list_handler *bgp_clist; | |
6b0655a2 | 107 | |
37fe7731 DS |
108 | unsigned int multipath_num = MULTIPATH_NUM; |
109 | ||
d62a17ae | 110 | static void bgp_if_finish(struct bgp *bgp); |
cc32742c | 111 | static void peer_drop_dynamic_neighbor(struct peer *peer); |
b33adb7c | 112 | |
ad4cbda1 | 113 | extern struct zclient *zclient; |
1ff9a340 | 114 | |
e5619c28 PG |
115 | /* handle main socket creation or deletion */ |
116 | static int bgp_check_main_socket(bool create, struct bgp *bgp) | |
117 | { | |
118 | static int bgp_server_main_created; | |
e5619c28 | 119 | |
d8729f8c | 120 | if (create) { |
e5619c28 PG |
121 | if (bgp_server_main_created) |
122 | return 0; | |
123 | if (bgp_socket(bgp, bm->port, bm->address) < 0) | |
124 | return BGP_ERR_INVALID_VALUE; | |
125 | bgp_server_main_created = 1; | |
126 | return 0; | |
127 | } | |
128 | if (!bgp_server_main_created) | |
129 | return 0; | |
e5619c28 PG |
130 | bgp_close(); |
131 | bgp_server_main_created = 0; | |
132 | return 0; | |
133 | } | |
134 | ||
d62a17ae | 135 | void bgp_session_reset(struct peer *peer) |
1ff9a340 | 136 | { |
d62a17ae | 137 | if (peer->doppelganger && (peer->doppelganger->status != Deleted) |
138 | && !(CHECK_FLAG(peer->doppelganger->flags, PEER_FLAG_CONFIG_NODE))) | |
139 | peer_delete(peer->doppelganger); | |
1ff9a340 | 140 | |
d62a17ae | 141 | BGP_EVENT_ADD(peer, BGP_Stop); |
1ff9a340 DS |
142 | } |
143 | ||
144 | /* | |
145 | * During session reset, we may delete the doppelganger peer, which would | |
146 | * be the next node to the current node. If the session reset was invoked | |
147 | * during walk of peer list, we would end up accessing the freed next | |
148 | * node. This function moves the next node along. | |
149 | */ | |
d62a17ae | 150 | static void bgp_session_reset_safe(struct peer *peer, struct listnode **nnode) |
1ff9a340 | 151 | { |
d62a17ae | 152 | struct listnode *n; |
153 | struct peer *npeer; | |
1ff9a340 | 154 | |
d62a17ae | 155 | n = (nnode) ? *nnode : NULL; |
156 | npeer = (n) ? listgetdata(n) : NULL; | |
1ff9a340 | 157 | |
d62a17ae | 158 | if (peer->doppelganger && (peer->doppelganger->status != Deleted) |
159 | && !(CHECK_FLAG(peer->doppelganger->flags, | |
160 | PEER_FLAG_CONFIG_NODE))) { | |
161 | if (peer->doppelganger == npeer) | |
162 | /* nnode and *nnode are confirmed to be non-NULL here */ | |
163 | *nnode = (*nnode)->next; | |
164 | peer_delete(peer->doppelganger); | |
165 | } | |
1ff9a340 | 166 | |
d62a17ae | 167 | BGP_EVENT_ADD(peer, BGP_Stop); |
1ff9a340 DS |
168 | } |
169 | ||
718e3744 | 170 | /* BGP global flag manipulation. */ |
d62a17ae | 171 | int bgp_option_set(int flag) |
172 | { | |
173 | switch (flag) { | |
174 | case BGP_OPT_NO_FIB: | |
d62a17ae | 175 | case BGP_OPT_NO_LISTEN: |
0b014ea6 | 176 | case BGP_OPT_NO_ZEBRA: |
d62a17ae | 177 | SET_FLAG(bm->options, flag); |
178 | break; | |
179 | default: | |
180 | return BGP_ERR_INVALID_FLAG; | |
181 | } | |
182 | return 0; | |
183 | } | |
184 | ||
185 | int bgp_option_unset(int flag) | |
186 | { | |
187 | switch (flag) { | |
d62a17ae | 188 | /* Fall through. */ |
0b014ea6 | 189 | case BGP_OPT_NO_ZEBRA: |
d62a17ae | 190 | case BGP_OPT_NO_FIB: |
d62a17ae | 191 | UNSET_FLAG(bm->options, flag); |
192 | break; | |
193 | default: | |
194 | return BGP_ERR_INVALID_FLAG; | |
195 | } | |
196 | return 0; | |
197 | } | |
198 | ||
199 | int bgp_option_check(int flag) | |
200 | { | |
201 | return CHECK_FLAG(bm->options, flag); | |
718e3744 | 202 | } |
6b0655a2 | 203 | |
718e3744 | 204 | /* BGP flag manipulation. */ |
d62a17ae | 205 | int bgp_flag_set(struct bgp *bgp, int flag) |
718e3744 | 206 | { |
d62a17ae | 207 | SET_FLAG(bgp->flags, flag); |
208 | return 0; | |
718e3744 | 209 | } |
210 | ||
d62a17ae | 211 | int bgp_flag_unset(struct bgp *bgp, int flag) |
718e3744 | 212 | { |
d62a17ae | 213 | UNSET_FLAG(bgp->flags, flag); |
214 | return 0; | |
718e3744 | 215 | } |
216 | ||
d62a17ae | 217 | int bgp_flag_check(struct bgp *bgp, int flag) |
718e3744 | 218 | { |
d62a17ae | 219 | return CHECK_FLAG(bgp->flags, flag); |
718e3744 | 220 | } |
6b0655a2 | 221 | |
718e3744 | 222 | /* Internal function to set BGP structure configureation flag. */ |
d62a17ae | 223 | static void bgp_config_set(struct bgp *bgp, int config) |
718e3744 | 224 | { |
d62a17ae | 225 | SET_FLAG(bgp->config, config); |
718e3744 | 226 | } |
227 | ||
d62a17ae | 228 | static void bgp_config_unset(struct bgp *bgp, int config) |
718e3744 | 229 | { |
d62a17ae | 230 | UNSET_FLAG(bgp->config, config); |
718e3744 | 231 | } |
232 | ||
d62a17ae | 233 | static int bgp_config_check(struct bgp *bgp, int config) |
718e3744 | 234 | { |
d62a17ae | 235 | return CHECK_FLAG(bgp->config, config); |
718e3744 | 236 | } |
6b0655a2 | 237 | |
e65fe398 MS |
238 | /* Set BGP router identifier; distinguish between explicit config and other |
239 | * cases. | |
240 | */ | |
241 | static int bgp_router_id_set(struct bgp *bgp, const struct in_addr *id, | |
242 | bool is_config) | |
718e3744 | 243 | { |
d62a17ae | 244 | struct peer *peer; |
245 | struct listnode *node, *nnode; | |
718e3744 | 246 | |
d62a17ae | 247 | if (IPV4_ADDR_SAME(&bgp->router_id, id)) |
248 | return 0; | |
718e3744 | 249 | |
d62a17ae | 250 | /* EVPN uses router id in RD, withdraw them */ |
94c2f693 | 251 | if (is_evpn_enabled()) |
2951a7a4 | 252 | bgp_evpn_handle_router_id_update(bgp, true); |
2d48ee25 | 253 | |
2951a7a4 | 254 | vpn_handle_router_id_update(bgp, true, is_config); |
636f7608 | 255 | |
d62a17ae | 256 | IPV4_ADDR_COPY(&bgp->router_id, id); |
718e3744 | 257 | |
d62a17ae | 258 | /* Set all peer's local identifier with this value. */ |
259 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
260 | IPV4_ADDR_COPY(&peer->local_id, id); | |
718e3744 | 261 | |
d62a17ae | 262 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
263 | peer->last_reset = PEER_DOWN_RID_CHANGE; | |
264 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
265 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
266 | } | |
267 | } | |
14c1a7bf | 268 | |
d62a17ae | 269 | /* EVPN uses router id in RD, update them */ |
94c2f693 | 270 | if (is_evpn_enabled()) |
2951a7a4 | 271 | bgp_evpn_handle_router_id_update(bgp, false); |
2d48ee25 | 272 | |
2951a7a4 | 273 | vpn_handle_router_id_update(bgp, false, is_config); |
636f7608 | 274 | |
d62a17ae | 275 | return 0; |
718e3744 | 276 | } |
277 | ||
d62a17ae | 278 | void bgp_router_id_zebra_bump(vrf_id_t vrf_id, const struct prefix *router_id) |
0e6cb743 | 279 | { |
d62a17ae | 280 | struct listnode *node, *nnode; |
281 | struct bgp *bgp; | |
36dc7588 | 282 | struct in_addr *addr = NULL; |
283 | ||
284 | if (router_id != NULL) | |
285 | addr = (struct in_addr *)&(router_id->u.prefix4); | |
0e6cb743 | 286 | |
d62a17ae | 287 | if (vrf_id == VRF_DEFAULT) { |
288 | /* Router-id change for default VRF has to also update all | |
289 | * views. */ | |
290 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) { | |
291 | if (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) | |
292 | continue; | |
0e6cb743 | 293 | |
36dc7588 | 294 | if (addr) |
295 | bgp->router_id_zebra = *addr; | |
296 | else | |
297 | addr = &bgp->router_id_zebra; | |
298 | ||
299 | if (!bgp->router_id_static.s_addr) { | |
300 | /* Router ID is updated if there are no active | |
301 | * peer sessions | |
302 | */ | |
303 | if (bgp->established_peers == 0) { | |
304 | if (BGP_DEBUG(zebra, ZEBRA)) | |
305 | zlog_debug("RID change : vrf %u, RTR ID %s", | |
306 | bgp->vrf_id, inet_ntoa(*addr)); | |
2951a7a4 | 307 | bgp_router_id_set(bgp, addr, false); |
36dc7588 | 308 | } |
309 | } | |
d62a17ae | 310 | } |
311 | } else { | |
312 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
313 | if (bgp) { | |
36dc7588 | 314 | if (addr) |
315 | bgp->router_id_zebra = *addr; | |
316 | else | |
317 | addr = &bgp->router_id_zebra; | |
318 | ||
319 | if (!bgp->router_id_static.s_addr) { | |
320 | /* Router ID is updated if there are no active | |
321 | * peer sessions | |
322 | */ | |
323 | if (bgp->established_peers == 0) { | |
324 | if (BGP_DEBUG(zebra, ZEBRA)) | |
325 | zlog_debug("RID change : vrf %u, RTR ID %s", | |
326 | bgp->vrf_id, inet_ntoa(*addr)); | |
2951a7a4 | 327 | bgp_router_id_set(bgp, addr, false); |
36dc7588 | 328 | } |
329 | } | |
0e6cb743 | 330 | |
d62a17ae | 331 | } |
332 | } | |
0e6cb743 DL |
333 | } |
334 | ||
d62a17ae | 335 | int bgp_router_id_static_set(struct bgp *bgp, struct in_addr id) |
0e6cb743 | 336 | { |
d62a17ae | 337 | bgp->router_id_static = id; |
e65fe398 | 338 | bgp_router_id_set(bgp, id.s_addr ? &id : &bgp->router_id_zebra, |
2951a7a4 | 339 | true /* is config */); |
d62a17ae | 340 | return 0; |
0e6cb743 DL |
341 | } |
342 | ||
718e3744 | 343 | /* BGP's cluster-id control. */ |
d62a17ae | 344 | int bgp_cluster_id_set(struct bgp *bgp, struct in_addr *cluster_id) |
718e3744 | 345 | { |
d62a17ae | 346 | struct peer *peer; |
347 | struct listnode *node, *nnode; | |
718e3744 | 348 | |
d62a17ae | 349 | if (bgp_config_check(bgp, BGP_CONFIG_CLUSTER_ID) |
350 | && IPV4_ADDR_SAME(&bgp->cluster_id, cluster_id)) | |
351 | return 0; | |
718e3744 | 352 | |
d62a17ae | 353 | IPV4_ADDR_COPY(&bgp->cluster_id, cluster_id); |
354 | bgp_config_set(bgp, BGP_CONFIG_CLUSTER_ID); | |
718e3744 | 355 | |
d62a17ae | 356 | /* Clear all IBGP peer. */ |
357 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
358 | if (peer->sort != BGP_PEER_IBGP) | |
359 | continue; | |
718e3744 | 360 | |
d62a17ae | 361 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
362 | peer->last_reset = PEER_DOWN_CLID_CHANGE; | |
363 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
364 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
365 | } | |
366 | } | |
367 | return 0; | |
718e3744 | 368 | } |
369 | ||
d62a17ae | 370 | int bgp_cluster_id_unset(struct bgp *bgp) |
718e3744 | 371 | { |
d62a17ae | 372 | struct peer *peer; |
373 | struct listnode *node, *nnode; | |
718e3744 | 374 | |
d62a17ae | 375 | if (!bgp_config_check(bgp, BGP_CONFIG_CLUSTER_ID)) |
376 | return 0; | |
718e3744 | 377 | |
d62a17ae | 378 | bgp->cluster_id.s_addr = 0; |
379 | bgp_config_unset(bgp, BGP_CONFIG_CLUSTER_ID); | |
718e3744 | 380 | |
d62a17ae | 381 | /* Clear all IBGP peer. */ |
382 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
383 | if (peer->sort != BGP_PEER_IBGP) | |
384 | continue; | |
718e3744 | 385 | |
d62a17ae | 386 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
387 | peer->last_reset = PEER_DOWN_CLID_CHANGE; | |
388 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
389 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
390 | } | |
391 | } | |
392 | return 0; | |
718e3744 | 393 | } |
6b0655a2 | 394 | |
65957886 SH |
395 | /* time_t value that is monotonicly increasing |
396 | * and uneffected by adjustments to system clock | |
397 | */ | |
d62a17ae | 398 | time_t bgp_clock(void) |
65957886 | 399 | { |
d62a17ae | 400 | struct timeval tv; |
65957886 | 401 | |
d62a17ae | 402 | monotime(&tv); |
403 | return tv.tv_sec; | |
65957886 SH |
404 | } |
405 | ||
718e3744 | 406 | /* BGP timer configuration. */ |
5d5393b9 DL |
407 | int bgp_timers_set(struct bgp *bgp, uint32_t keepalive, uint32_t holdtime, |
408 | uint32_t connect_retry) | |
718e3744 | 409 | { |
d62a17ae | 410 | bgp->default_keepalive = |
411 | (keepalive < holdtime / 3 ? keepalive : holdtime / 3); | |
412 | bgp->default_holdtime = holdtime; | |
5d5393b9 | 413 | bgp->default_connect_retry = connect_retry; |
718e3744 | 414 | |
d62a17ae | 415 | return 0; |
718e3744 | 416 | } |
417 | ||
5d5393b9 | 418 | /* mostly for completeness - CLI uses its own defaults */ |
d62a17ae | 419 | int bgp_timers_unset(struct bgp *bgp) |
718e3744 | 420 | { |
d62a17ae | 421 | bgp->default_keepalive = BGP_DEFAULT_KEEPALIVE; |
422 | bgp->default_holdtime = BGP_DEFAULT_HOLDTIME; | |
5d5393b9 | 423 | bgp->default_connect_retry = BGP_DEFAULT_CONNECT_RETRY; |
718e3744 | 424 | |
d62a17ae | 425 | return 0; |
718e3744 | 426 | } |
6b0655a2 | 427 | |
718e3744 | 428 | /* BGP confederation configuration. */ |
d62a17ae | 429 | int bgp_confederation_id_set(struct bgp *bgp, as_t as) |
430 | { | |
431 | struct peer *peer; | |
432 | struct listnode *node, *nnode; | |
433 | int already_confed; | |
434 | ||
435 | if (as == 0) | |
436 | return BGP_ERR_INVALID_AS; | |
437 | ||
438 | /* Remember - were we doing confederation before? */ | |
439 | already_confed = bgp_config_check(bgp, BGP_CONFIG_CONFEDERATION); | |
440 | bgp->confed_id = as; | |
441 | bgp_config_set(bgp, BGP_CONFIG_CONFEDERATION); | |
442 | ||
443 | /* If we were doing confederation already, this is just an external | |
444 | AS change. Just Reset EBGP sessions, not CONFED sessions. If we | |
445 | were not doing confederation before, reset all EBGP sessions. */ | |
446 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
447 | /* We're looking for peers who's AS is not local or part of our | |
448 | confederation. */ | |
449 | if (already_confed) { | |
450 | if (peer_sort(peer) == BGP_PEER_EBGP) { | |
451 | peer->local_as = as; | |
452 | if (BGP_IS_VALID_STATE_FOR_NOTIF( | |
453 | peer->status)) { | |
454 | peer->last_reset = | |
455 | PEER_DOWN_CONFED_ID_CHANGE; | |
456 | bgp_notify_send( | |
457 | peer, BGP_NOTIFY_CEASE, | |
458 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
459 | } else | |
460 | bgp_session_reset_safe(peer, &nnode); | |
461 | } | |
462 | } else { | |
463 | /* Not doign confederation before, so reset every | |
464 | non-local | |
465 | session */ | |
466 | if (peer_sort(peer) != BGP_PEER_IBGP) { | |
467 | /* Reset the local_as to be our EBGP one */ | |
468 | if (peer_sort(peer) == BGP_PEER_EBGP) | |
469 | peer->local_as = as; | |
470 | if (BGP_IS_VALID_STATE_FOR_NOTIF( | |
471 | peer->status)) { | |
472 | peer->last_reset = | |
473 | PEER_DOWN_CONFED_ID_CHANGE; | |
474 | bgp_notify_send( | |
475 | peer, BGP_NOTIFY_CEASE, | |
476 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
477 | } else | |
478 | bgp_session_reset_safe(peer, &nnode); | |
479 | } | |
480 | } | |
718e3744 | 481 | } |
d62a17ae | 482 | return 0; |
718e3744 | 483 | } |
484 | ||
d62a17ae | 485 | int bgp_confederation_id_unset(struct bgp *bgp) |
718e3744 | 486 | { |
d62a17ae | 487 | struct peer *peer; |
488 | struct listnode *node, *nnode; | |
489 | ||
490 | bgp->confed_id = 0; | |
491 | bgp_config_unset(bgp, BGP_CONFIG_CONFEDERATION); | |
718e3744 | 492 | |
d62a17ae | 493 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { |
494 | /* We're looking for peers who's AS is not local */ | |
495 | if (peer_sort(peer) != BGP_PEER_IBGP) { | |
496 | peer->local_as = bgp->as; | |
497 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
498 | peer->last_reset = PEER_DOWN_CONFED_ID_CHANGE; | |
499 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
500 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
501 | } | |
718e3744 | 502 | |
d62a17ae | 503 | else |
504 | bgp_session_reset_safe(peer, &nnode); | |
505 | } | |
506 | } | |
507 | return 0; | |
718e3744 | 508 | } |
509 | ||
d62a17ae | 510 | /* Is an AS part of the confed or not? */ |
511 | int bgp_confederation_peers_check(struct bgp *bgp, as_t as) | |
718e3744 | 512 | { |
d62a17ae | 513 | int i; |
718e3744 | 514 | |
d62a17ae | 515 | if (!bgp) |
516 | return 0; | |
718e3744 | 517 | |
d62a17ae | 518 | for (i = 0; i < bgp->confed_peers_cnt; i++) |
519 | if (bgp->confed_peers[i] == as) | |
520 | return 1; | |
718e3744 | 521 | |
d62a17ae | 522 | return 0; |
523 | } | |
718e3744 | 524 | |
d62a17ae | 525 | /* Add an AS to the confederation set. */ |
526 | int bgp_confederation_peers_add(struct bgp *bgp, as_t as) | |
527 | { | |
528 | struct peer *peer; | |
529 | struct listnode *node, *nnode; | |
530 | ||
531 | if (!bgp) | |
532 | return BGP_ERR_INVALID_BGP; | |
533 | ||
534 | if (bgp->as == as) | |
535 | return BGP_ERR_INVALID_AS; | |
536 | ||
537 | if (bgp_confederation_peers_check(bgp, as)) | |
538 | return -1; | |
539 | ||
540 | if (bgp->confed_peers) | |
541 | bgp->confed_peers = | |
542 | XREALLOC(MTYPE_BGP_CONFED_LIST, bgp->confed_peers, | |
543 | (bgp->confed_peers_cnt + 1) * sizeof(as_t)); | |
544 | else | |
545 | bgp->confed_peers = | |
546 | XMALLOC(MTYPE_BGP_CONFED_LIST, | |
547 | (bgp->confed_peers_cnt + 1) * sizeof(as_t)); | |
548 | ||
549 | bgp->confed_peers[bgp->confed_peers_cnt] = as; | |
550 | bgp->confed_peers_cnt++; | |
551 | ||
552 | if (bgp_config_check(bgp, BGP_CONFIG_CONFEDERATION)) { | |
553 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
554 | if (peer->as == as) { | |
555 | peer->local_as = bgp->as; | |
556 | if (BGP_IS_VALID_STATE_FOR_NOTIF( | |
557 | peer->status)) { | |
558 | peer->last_reset = | |
559 | PEER_DOWN_CONFED_PEER_CHANGE; | |
560 | bgp_notify_send( | |
561 | peer, BGP_NOTIFY_CEASE, | |
562 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
563 | } else | |
564 | bgp_session_reset_safe(peer, &nnode); | |
565 | } | |
566 | } | |
567 | } | |
568 | return 0; | |
718e3744 | 569 | } |
570 | ||
571 | /* Delete an AS from the confederation set. */ | |
d62a17ae | 572 | int bgp_confederation_peers_remove(struct bgp *bgp, as_t as) |
573 | { | |
574 | int i; | |
575 | int j; | |
576 | struct peer *peer; | |
577 | struct listnode *node, *nnode; | |
578 | ||
579 | if (!bgp) | |
580 | return -1; | |
581 | ||
582 | if (!bgp_confederation_peers_check(bgp, as)) | |
583 | return -1; | |
584 | ||
585 | for (i = 0; i < bgp->confed_peers_cnt; i++) | |
586 | if (bgp->confed_peers[i] == as) | |
587 | for (j = i + 1; j < bgp->confed_peers_cnt; j++) | |
588 | bgp->confed_peers[j - 1] = bgp->confed_peers[j]; | |
589 | ||
590 | bgp->confed_peers_cnt--; | |
591 | ||
592 | if (bgp->confed_peers_cnt == 0) { | |
593 | if (bgp->confed_peers) | |
594 | XFREE(MTYPE_BGP_CONFED_LIST, bgp->confed_peers); | |
595 | bgp->confed_peers = NULL; | |
596 | } else | |
597 | bgp->confed_peers = | |
598 | XREALLOC(MTYPE_BGP_CONFED_LIST, bgp->confed_peers, | |
599 | bgp->confed_peers_cnt * sizeof(as_t)); | |
600 | ||
601 | /* Now reset any peer who's remote AS has just been removed from the | |
602 | CONFED */ | |
603 | if (bgp_config_check(bgp, BGP_CONFIG_CONFEDERATION)) { | |
604 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
605 | if (peer->as == as) { | |
606 | peer->local_as = bgp->confed_id; | |
607 | if (BGP_IS_VALID_STATE_FOR_NOTIF( | |
608 | peer->status)) { | |
609 | peer->last_reset = | |
610 | PEER_DOWN_CONFED_PEER_CHANGE; | |
611 | bgp_notify_send( | |
612 | peer, BGP_NOTIFY_CEASE, | |
613 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
614 | } else | |
615 | bgp_session_reset_safe(peer, &nnode); | |
616 | } | |
617 | } | |
718e3744 | 618 | } |
718e3744 | 619 | |
d62a17ae | 620 | return 0; |
718e3744 | 621 | } |
6b0655a2 | 622 | |
718e3744 | 623 | /* Local preference configuration. */ |
d7c0a89a | 624 | int bgp_default_local_preference_set(struct bgp *bgp, uint32_t local_pref) |
718e3744 | 625 | { |
d62a17ae | 626 | if (!bgp) |
627 | return -1; | |
718e3744 | 628 | |
d62a17ae | 629 | bgp->default_local_pref = local_pref; |
718e3744 | 630 | |
d62a17ae | 631 | return 0; |
718e3744 | 632 | } |
633 | ||
d62a17ae | 634 | int bgp_default_local_preference_unset(struct bgp *bgp) |
718e3744 | 635 | { |
d62a17ae | 636 | if (!bgp) |
637 | return -1; | |
718e3744 | 638 | |
d62a17ae | 639 | bgp->default_local_pref = BGP_DEFAULT_LOCAL_PREF; |
718e3744 | 640 | |
d62a17ae | 641 | return 0; |
718e3744 | 642 | } |
6b0655a2 | 643 | |
3f9c7369 | 644 | /* Local preference configuration. */ |
d7c0a89a | 645 | int bgp_default_subgroup_pkt_queue_max_set(struct bgp *bgp, uint32_t queue_size) |
3f9c7369 | 646 | { |
d62a17ae | 647 | if (!bgp) |
648 | return -1; | |
3f9c7369 | 649 | |
d62a17ae | 650 | bgp->default_subgroup_pkt_queue_max = queue_size; |
3f9c7369 | 651 | |
d62a17ae | 652 | return 0; |
3f9c7369 DS |
653 | } |
654 | ||
d62a17ae | 655 | int bgp_default_subgroup_pkt_queue_max_unset(struct bgp *bgp) |
3f9c7369 | 656 | { |
d62a17ae | 657 | if (!bgp) |
658 | return -1; | |
659 | bgp->default_subgroup_pkt_queue_max = | |
660 | BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX; | |
3f9c7369 | 661 | |
d62a17ae | 662 | return 0; |
3f9c7369 DS |
663 | } |
664 | ||
f14e6fdb | 665 | /* Listen limit configuration. */ |
d62a17ae | 666 | int bgp_listen_limit_set(struct bgp *bgp, int listen_limit) |
f14e6fdb | 667 | { |
d62a17ae | 668 | if (!bgp) |
669 | return -1; | |
f14e6fdb | 670 | |
d62a17ae | 671 | bgp->dynamic_neighbors_limit = listen_limit; |
f14e6fdb | 672 | |
d62a17ae | 673 | return 0; |
f14e6fdb DS |
674 | } |
675 | ||
d62a17ae | 676 | int bgp_listen_limit_unset(struct bgp *bgp) |
f14e6fdb | 677 | { |
d62a17ae | 678 | if (!bgp) |
679 | return -1; | |
f14e6fdb | 680 | |
d62a17ae | 681 | bgp->dynamic_neighbors_limit = BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT; |
f14e6fdb | 682 | |
d62a17ae | 683 | return 0; |
f14e6fdb DS |
684 | } |
685 | ||
5c525538 RW |
686 | int bgp_map_afi_safi_iana2int(iana_afi_t pkt_afi, iana_safi_t pkt_safi, |
687 | afi_t *afi, safi_t *safi) | |
9cabb64b | 688 | { |
d62a17ae | 689 | /* Map from IANA values to internal values, return error if |
690 | * values are unrecognized. | |
691 | */ | |
692 | *afi = afi_iana2int(pkt_afi); | |
693 | *safi = safi_iana2int(pkt_safi); | |
694 | if (*afi == AFI_MAX || *safi == SAFI_MAX) | |
695 | return -1; | |
9cabb64b | 696 | |
d62a17ae | 697 | return 0; |
9cabb64b | 698 | } |
699 | ||
d62a17ae | 700 | int bgp_map_afi_safi_int2iana(afi_t afi, safi_t safi, iana_afi_t *pkt_afi, |
5c525538 | 701 | iana_safi_t *pkt_safi) |
9cabb64b | 702 | { |
d62a17ae | 703 | /* Map from internal values to IANA values, return error if |
704 | * internal values are bad (unexpected). | |
705 | */ | |
706 | if (afi == AFI_MAX || safi == SAFI_MAX) | |
707 | return -1; | |
708 | *pkt_afi = afi_int2iana(afi); | |
709 | *pkt_safi = safi_int2iana(safi); | |
710 | return 0; | |
9cabb64b | 711 | } |
712 | ||
d62a17ae | 713 | struct peer_af *peer_af_create(struct peer *peer, afi_t afi, safi_t safi) |
3f9c7369 | 714 | { |
d62a17ae | 715 | struct peer_af *af; |
716 | int afid; | |
210ec2a0 | 717 | struct bgp *bgp; |
3f9c7369 | 718 | |
d62a17ae | 719 | if (!peer) |
720 | return NULL; | |
3f9c7369 | 721 | |
d62a17ae | 722 | afid = afindex(afi, safi); |
723 | if (afid >= BGP_AF_MAX) | |
724 | return NULL; | |
3f9c7369 | 725 | |
210ec2a0 | 726 | bgp = peer->bgp; |
d62a17ae | 727 | assert(peer->peer_af_array[afid] == NULL); |
3f9c7369 | 728 | |
d62a17ae | 729 | /* Allocate new peer af */ |
730 | af = XCALLOC(MTYPE_BGP_PEER_AF, sizeof(struct peer_af)); | |
c8560b44 | 731 | |
d62a17ae | 732 | peer->peer_af_array[afid] = af; |
733 | af->afi = afi; | |
734 | af->safi = safi; | |
735 | af->afid = afid; | |
736 | af->peer = peer; | |
210ec2a0 | 737 | bgp->af_peer_count[afi][safi]++; |
3f9c7369 | 738 | |
d62a17ae | 739 | return af; |
3f9c7369 DS |
740 | } |
741 | ||
d62a17ae | 742 | struct peer_af *peer_af_find(struct peer *peer, afi_t afi, safi_t safi) |
3f9c7369 | 743 | { |
d62a17ae | 744 | int afid; |
3f9c7369 | 745 | |
d62a17ae | 746 | if (!peer) |
747 | return NULL; | |
3f9c7369 | 748 | |
d62a17ae | 749 | afid = afindex(afi, safi); |
750 | if (afid >= BGP_AF_MAX) | |
751 | return NULL; | |
3f9c7369 | 752 | |
d62a17ae | 753 | return peer->peer_af_array[afid]; |
3f9c7369 DS |
754 | } |
755 | ||
d62a17ae | 756 | int peer_af_delete(struct peer *peer, afi_t afi, safi_t safi) |
3f9c7369 | 757 | { |
d62a17ae | 758 | struct peer_af *af; |
759 | int afid; | |
210ec2a0 | 760 | struct bgp *bgp; |
3f9c7369 | 761 | |
d62a17ae | 762 | if (!peer) |
763 | return -1; | |
3f9c7369 | 764 | |
d62a17ae | 765 | afid = afindex(afi, safi); |
766 | if (afid >= BGP_AF_MAX) | |
767 | return -1; | |
3f9c7369 | 768 | |
d62a17ae | 769 | af = peer->peer_af_array[afid]; |
770 | if (!af) | |
771 | return -1; | |
3f9c7369 | 772 | |
210ec2a0 | 773 | bgp = peer->bgp; |
d62a17ae | 774 | bgp_stop_announce_route_timer(af); |
3f9c7369 | 775 | |
d62a17ae | 776 | if (PAF_SUBGRP(af)) { |
777 | if (BGP_DEBUG(update_groups, UPDATE_GROUPS)) | |
778 | zlog_debug("u%" PRIu64 ":s%" PRIu64 " remove peer %s", | |
779 | af->subgroup->update_group->id, | |
780 | af->subgroup->id, peer->host); | |
781 | } | |
3f9c7369 | 782 | |
210ec2a0 | 783 | |
d62a17ae | 784 | update_subgroup_remove_peer(af->subgroup, af); |
3f9c7369 | 785 | |
210ec2a0 AS |
786 | if (bgp->af_peer_count[afi][safi]) |
787 | bgp->af_peer_count[afi][safi]--; | |
788 | ||
d62a17ae | 789 | peer->peer_af_array[afid] = NULL; |
790 | XFREE(MTYPE_BGP_PEER_AF, af); | |
791 | return 0; | |
3f9c7369 DS |
792 | } |
793 | ||
eb821189 | 794 | /* Peer comparison function for sorting. */ |
d62a17ae | 795 | int peer_cmp(struct peer *p1, struct peer *p2) |
718e3744 | 796 | { |
d62a17ae | 797 | if (p1->group && !p2->group) |
798 | return -1; | |
0aaa34db | 799 | |
d62a17ae | 800 | if (!p1->group && p2->group) |
801 | return 1; | |
0aaa34db | 802 | |
d62a17ae | 803 | if (p1->group == p2->group) { |
804 | if (p1->conf_if && !p2->conf_if) | |
805 | return -1; | |
0aaa34db | 806 | |
d62a17ae | 807 | if (!p1->conf_if && p2->conf_if) |
808 | return 1; | |
0aaa34db | 809 | |
d62a17ae | 810 | if (p1->conf_if && p2->conf_if) |
811 | return if_cmp_name_func(p1->conf_if, p2->conf_if); | |
812 | } else | |
813 | return strcmp(p1->group->name, p2->group->name); | |
0aaa34db | 814 | |
d62a17ae | 815 | return sockunion_cmp(&p1->su, &p2->su); |
718e3744 | 816 | } |
817 | ||
d8b87afe | 818 | static unsigned int peer_hash_key_make(const void *p) |
dd793e4a | 819 | { |
d8b87afe | 820 | const struct peer *peer = p; |
d62a17ae | 821 | return sockunion_hash(&peer->su); |
dd793e4a DW |
822 | } |
823 | ||
74df8d6d | 824 | static bool peer_hash_same(const void *p1, const void *p2) |
dd793e4a | 825 | { |
d62a17ae | 826 | const struct peer *peer1 = p1; |
827 | const struct peer *peer2 = p2; | |
828 | return (sockunion_same(&peer1->su, &peer2->su) | |
829 | && CHECK_FLAG(peer1->flags, PEER_FLAG_CONFIG_NODE) | |
830 | == CHECK_FLAG(peer2->flags, PEER_FLAG_CONFIG_NODE)); | |
dd793e4a DW |
831 | } |
832 | ||
9fb964de PM |
833 | void peer_flag_inherit(struct peer *peer, uint32_t flag) |
834 | { | |
835 | bool group_val; | |
836 | ||
837 | /* Skip if peer is not a peer-group member. */ | |
838 | if (!peer_group_active(peer)) | |
839 | return; | |
840 | ||
841 | /* Unset override flag to signal inheritance from peer-group. */ | |
842 | UNSET_FLAG(peer->flags_override, flag); | |
843 | ||
844 | /* | |
845 | * Inherit flag state from peer-group. If the flag of the peer-group is | |
846 | * not being inverted, the peer must inherit the inverse of the current | |
847 | * peer-group flag state. | |
848 | */ | |
849 | group_val = CHECK_FLAG(peer->group->conf->flags, flag); | |
850 | if (!CHECK_FLAG(peer->group->conf->flags_invert, flag) | |
851 | && CHECK_FLAG(peer->flags_invert, flag)) | |
852 | COND_FLAG(peer->flags, flag, !group_val); | |
853 | else | |
854 | COND_FLAG(peer->flags, flag, group_val); | |
855 | } | |
856 | ||
d7c0a89a | 857 | int peer_af_flag_check(struct peer *peer, afi_t afi, safi_t safi, uint32_t flag) |
718e3744 | 858 | { |
d62a17ae | 859 | return CHECK_FLAG(peer->af_flags[afi][safi], flag); |
718e3744 | 860 | } |
861 | ||
598ce6bd PM |
862 | void peer_af_flag_inherit(struct peer *peer, afi_t afi, safi_t safi, |
863 | uint32_t flag) | |
88b8ed8d | 864 | { |
527de3dc PM |
865 | bool group_val; |
866 | ||
598ce6bd PM |
867 | /* Skip if peer is not a peer-group member. */ |
868 | if (!peer_group_active(peer)) | |
869 | return; | |
88b8ed8d | 870 | |
598ce6bd PM |
871 | /* Unset override flag to signal inheritance from peer-group. */ |
872 | UNSET_FLAG(peer->af_flags_override[afi][safi], flag); | |
88b8ed8d | 873 | |
527de3dc PM |
874 | /* |
875 | * Inherit flag state from peer-group. If the flag of the peer-group is | |
876 | * not being inverted, the peer must inherit the inverse of the current | |
877 | * peer-group flag state. | |
878 | */ | |
879 | group_val = CHECK_FLAG(peer->group->conf->af_flags[afi][safi], flag); | |
880 | if (!CHECK_FLAG(peer->group->conf->af_flags_invert[afi][safi], flag) | |
881 | && CHECK_FLAG(peer->af_flags_invert[afi][safi], flag)) | |
882 | COND_FLAG(peer->af_flags[afi][safi], flag, !group_val); | |
598ce6bd | 883 | else |
527de3dc | 884 | COND_FLAG(peer->af_flags[afi][safi], flag, group_val); |
598ce6bd | 885 | } |
88b8ed8d | 886 | |
6d85b15b | 887 | /* Check peer's AS number and determines if this peer is IBGP or EBGP */ |
82417ac2 | 888 | static inline bgp_peer_sort_t peer_calc_sort(struct peer *peer) |
718e3744 | 889 | { |
d62a17ae | 890 | struct bgp *bgp; |
718e3744 | 891 | |
d62a17ae | 892 | bgp = peer->bgp; |
718e3744 | 893 | |
d62a17ae | 894 | /* Peer-group */ |
895 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
896 | if (peer->as_type == AS_INTERNAL) | |
897 | return BGP_PEER_IBGP; | |
66b199b2 | 898 | |
d62a17ae | 899 | else if (peer->as_type == AS_EXTERNAL) |
900 | return BGP_PEER_EBGP; | |
66b199b2 | 901 | |
b575a12c A |
902 | else if (peer->as_type == AS_SPECIFIED && peer->as) { |
903 | assert(bgp); | |
d62a17ae | 904 | return (bgp->as == peer->as ? BGP_PEER_IBGP |
905 | : BGP_PEER_EBGP); | |
b575a12c | 906 | } |
66b199b2 | 907 | |
d62a17ae | 908 | else { |
909 | struct peer *peer1; | |
d4f8b537 | 910 | |
911 | assert(peer->group); | |
d62a17ae | 912 | peer1 = listnode_head(peer->group->peer); |
913 | ||
914 | if (peer1) | |
915 | return peer1->sort; | |
916 | } | |
917 | return BGP_PEER_INTERNAL; | |
918 | } | |
919 | ||
920 | /* Normal peer */ | |
921 | if (bgp && CHECK_FLAG(bgp->config, BGP_CONFIG_CONFEDERATION)) { | |
922 | if (peer->local_as == 0) | |
923 | return BGP_PEER_INTERNAL; | |
924 | ||
925 | if (peer->local_as == peer->as) { | |
926 | if (bgp->as == bgp->confed_id) { | |
927 | if (peer->local_as == bgp->as) | |
928 | return BGP_PEER_IBGP; | |
929 | else | |
930 | return BGP_PEER_EBGP; | |
931 | } else { | |
932 | if (peer->local_as == bgp->confed_id) | |
933 | return BGP_PEER_EBGP; | |
934 | else | |
935 | return BGP_PEER_IBGP; | |
936 | } | |
937 | } | |
938 | ||
939 | if (bgp_confederation_peers_check(bgp, peer->as)) | |
940 | return BGP_PEER_CONFED; | |
941 | ||
942 | return BGP_PEER_EBGP; | |
943 | } else { | |
faa16034 DS |
944 | if (peer->as_type == AS_UNSPECIFIED) { |
945 | /* check if in peer-group with AS information */ | |
946 | if (peer->group | |
947 | && (peer->group->conf->as_type != AS_UNSPECIFIED)) { | |
948 | if (peer->group->conf->as_type | |
949 | == AS_SPECIFIED) { | |
950 | if (peer->local_as | |
951 | == peer->group->conf->as) | |
952 | return BGP_PEER_IBGP; | |
953 | else | |
954 | return BGP_PEER_EBGP; | |
955 | } else if (peer->group->conf->as_type | |
956 | == AS_INTERNAL) | |
957 | return BGP_PEER_IBGP; | |
958 | else | |
959 | return BGP_PEER_EBGP; | |
960 | } | |
961 | /* no AS information anywhere, let caller know */ | |
962 | return BGP_PEER_UNSPECIFIED; | |
963 | } else if (peer->as_type != AS_SPECIFIED) | |
d62a17ae | 964 | return (peer->as_type == AS_INTERNAL ? BGP_PEER_IBGP |
965 | : BGP_PEER_EBGP); | |
966 | ||
967 | return (peer->local_as == 0 | |
968 | ? BGP_PEER_INTERNAL | |
969 | : peer->local_as == peer->as ? BGP_PEER_IBGP | |
970 | : BGP_PEER_EBGP); | |
971 | } | |
718e3744 | 972 | } |
973 | ||
6d85b15b | 974 | /* Calculate and cache the peer "sort" */ |
d62a17ae | 975 | bgp_peer_sort_t peer_sort(struct peer *peer) |
976 | { | |
977 | peer->sort = peer_calc_sort(peer); | |
978 | return peer->sort; | |
979 | } | |
980 | ||
981 | static void peer_free(struct peer *peer) | |
982 | { | |
dcc68b5e MS |
983 | afi_t afi; |
984 | safi_t safi; | |
985 | ||
d62a17ae | 986 | assert(peer->status == Deleted); |
987 | ||
988 | QOBJ_UNREG(peer); | |
989 | ||
990 | /* this /ought/ to have been done already through bgp_stop earlier, | |
991 | * but just to be sure.. | |
992 | */ | |
993 | bgp_timer_set(peer); | |
424ab01d QY |
994 | bgp_reads_off(peer); |
995 | bgp_writes_off(peer); | |
996 | assert(!peer->t_write); | |
997 | assert(!peer->t_read); | |
d62a17ae | 998 | BGP_EVENT_FLUSH(peer); |
999 | ||
424ab01d QY |
1000 | pthread_mutex_destroy(&peer->io_mtx); |
1001 | ||
d62a17ae | 1002 | /* Free connected nexthop, if present */ |
1003 | if (CHECK_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE) | |
1004 | && !peer_dynamic_neighbor(peer)) | |
1005 | bgp_delete_connected_nexthop(family2afi(peer->su.sa.sa_family), | |
1006 | peer); | |
1007 | ||
1008 | XFREE(MTYPE_PEER_TX_SHUTDOWN_MSG, peer->tx_shutdown_message); | |
1009 | ||
1010 | if (peer->desc) { | |
1011 | XFREE(MTYPE_PEER_DESC, peer->desc); | |
1012 | peer->desc = NULL; | |
1013 | } | |
1014 | ||
1015 | /* Free allocated host character. */ | |
1016 | if (peer->host) { | |
1017 | XFREE(MTYPE_BGP_PEER_HOST, peer->host); | |
1018 | peer->host = NULL; | |
1019 | } | |
1020 | ||
1021 | if (peer->domainname) { | |
1022 | XFREE(MTYPE_BGP_PEER_HOST, peer->domainname); | |
1023 | peer->domainname = NULL; | |
1024 | } | |
1025 | ||
1026 | if (peer->ifname) { | |
1027 | XFREE(MTYPE_BGP_PEER_IFNAME, peer->ifname); | |
1028 | peer->ifname = NULL; | |
1029 | } | |
1030 | ||
1031 | /* Update source configuration. */ | |
1032 | if (peer->update_source) { | |
1033 | sockunion_free(peer->update_source); | |
1034 | peer->update_source = NULL; | |
1035 | } | |
1036 | ||
1037 | if (peer->update_if) { | |
1038 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); | |
1039 | peer->update_if = NULL; | |
1040 | } | |
1041 | ||
0a22ddfb | 1042 | XFREE(MTYPE_TMP, peer->notify.data); |
d62a17ae | 1043 | memset(&peer->notify, 0, sizeof(struct bgp_notify)); |
1044 | ||
e208c8f9 DS |
1045 | if (peer->clear_node_queue) |
1046 | work_queue_free_and_null(&peer->clear_node_queue); | |
d62a17ae | 1047 | |
1048 | bgp_sync_delete(peer); | |
1049 | ||
1050 | if (peer->conf_if) { | |
1051 | XFREE(MTYPE_PEER_CONF_IF, peer->conf_if); | |
1052 | peer->conf_if = NULL; | |
1053 | } | |
1054 | ||
1055 | bfd_info_free(&(peer->bfd_info)); | |
1056 | ||
dcc68b5e MS |
1057 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
1058 | for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++) { | |
1059 | bgp_addpath_set_peer_type(peer, afi, safi, | |
1060 | BGP_ADDPATH_NONE); | |
1061 | } | |
1062 | } | |
1063 | ||
d62a17ae | 1064 | bgp_unlock(peer->bgp); |
1065 | ||
1066 | memset(peer, 0, sizeof(struct peer)); | |
1067 | ||
1068 | XFREE(MTYPE_BGP_PEER, peer); | |
1069 | } | |
1070 | ||
200df115 | 1071 | /* increase reference count on a struct peer */ |
d62a17ae | 1072 | struct peer *peer_lock_with_caller(const char *name, struct peer *peer) |
200df115 | 1073 | { |
d62a17ae | 1074 | assert(peer && (peer->lock >= 0)); |
28066f4b DS |
1075 | |
1076 | #if 0 | |
1077 | zlog_debug("%s peer_lock %p %d", name, peer, peer->lock); | |
1078 | #endif | |
d62a17ae | 1079 | |
1080 | peer->lock++; | |
1081 | ||
1082 | return peer; | |
200df115 | 1083 | } |
1084 | ||
1085 | /* decrease reference count on a struct peer | |
1086 | * struct peer is freed and NULL returned if last reference | |
1087 | */ | |
d62a17ae | 1088 | struct peer *peer_unlock_with_caller(const char *name, struct peer *peer) |
200df115 | 1089 | { |
d62a17ae | 1090 | assert(peer && (peer->lock > 0)); |
28066f4b DS |
1091 | |
1092 | #if 0 | |
1093 | zlog_debug("%s peer_unlock %p %d", name, peer, peer->lock); | |
1094 | #endif | |
200df115 | 1095 | |
d62a17ae | 1096 | peer->lock--; |
1097 | ||
1098 | if (peer->lock == 0) { | |
1099 | peer_free(peer); | |
1100 | return NULL; | |
1101 | } | |
1102 | ||
1103 | return peer; | |
200df115 | 1104 | } |
1ff9a340 | 1105 | |
200df115 | 1106 | /* Allocate new peer object, implicitely locked. */ |
d62a17ae | 1107 | struct peer *peer_new(struct bgp *bgp) |
1108 | { | |
1109 | afi_t afi; | |
1110 | safi_t safi; | |
1111 | struct peer *peer; | |
1112 | struct servent *sp; | |
1113 | ||
1114 | /* bgp argument is absolutely required */ | |
1115 | assert(bgp); | |
1116 | if (!bgp) | |
1117 | return NULL; | |
1118 | ||
1119 | /* Allocate new peer. */ | |
1120 | peer = XCALLOC(MTYPE_BGP_PEER, sizeof(struct peer)); | |
1121 | ||
1122 | /* Set default value. */ | |
1123 | peer->fd = -1; | |
1124 | peer->v_start = BGP_INIT_START_TIMER; | |
5d5393b9 | 1125 | peer->v_connect = bgp->default_connect_retry; |
d62a17ae | 1126 | peer->status = Idle; |
1127 | peer->ostatus = Idle; | |
1128 | peer->cur_event = peer->last_event = peer->last_major_event = 0; | |
92375c91 | 1129 | peer->bgp = bgp_lock(bgp); |
d62a17ae | 1130 | peer = peer_lock(peer); /* initial reference */ |
d62a17ae | 1131 | peer->password = NULL; |
1132 | ||
27c05d4d | 1133 | /* Set default flags. */ |
05c7a1cc | 1134 | FOREACH_AFI_SAFI (afi, safi) { |
d8a9922d DS |
1135 | SET_FLAG(peer->af_flags[afi][safi], PEER_FLAG_SEND_COMMUNITY); |
1136 | SET_FLAG(peer->af_flags[afi][safi], | |
1137 | PEER_FLAG_SEND_EXT_COMMUNITY); | |
1138 | SET_FLAG(peer->af_flags[afi][safi], | |
1139 | PEER_FLAG_SEND_LARGE_COMMUNITY); | |
1140 | ||
1141 | SET_FLAG(peer->af_flags_invert[afi][safi], | |
1142 | PEER_FLAG_SEND_COMMUNITY); | |
1143 | SET_FLAG(peer->af_flags_invert[afi][safi], | |
1144 | PEER_FLAG_SEND_EXT_COMMUNITY); | |
1145 | SET_FLAG(peer->af_flags_invert[afi][safi], | |
1146 | PEER_FLAG_SEND_LARGE_COMMUNITY); | |
dcc68b5e | 1147 | peer->addpath_type[afi][safi] = BGP_ADDPATH_NONE; |
05c7a1cc | 1148 | } |
637315fc MK |
1149 | |
1150 | /* set nexthop-unchanged for l2vpn evpn by default */ | |
1151 | SET_FLAG(peer->af_flags[AFI_L2VPN][SAFI_EVPN], | |
1152 | PEER_FLAG_NEXTHOP_UNCHANGED); | |
1153 | ||
d62a17ae | 1154 | SET_FLAG(peer->sflags, PEER_STATUS_CAPABILITY_OPEN); |
718e3744 | 1155 | |
d62a17ae | 1156 | /* Create buffers. */ |
424ab01d | 1157 | peer->ibuf = stream_fifo_new(); |
d62a17ae | 1158 | peer->obuf = stream_fifo_new(); |
424ab01d | 1159 | pthread_mutex_init(&peer->io_mtx, NULL); |
0a91ff55 | 1160 | |
424ab01d | 1161 | /* We use a larger buffer for peer->obuf_work in the event that: |
d62a17ae | 1162 | * - We RX a BGP_UPDATE where the attributes alone are just |
1163 | * under BGP_MAX_PACKET_SIZE | |
1164 | * - The user configures an outbound route-map that does many as-path | |
09f6d019 QY |
1165 | * prepends or adds many communities. At most they can have |
1166 | * CMD_ARGC_MAX args in a route-map so there is a finite limit on how | |
1167 | * large they can make the attributes. | |
d62a17ae | 1168 | * |
1169 | * Having a buffer with BGP_MAX_PACKET_SIZE_OVERFLOW allows us to avoid | |
09f6d019 QY |
1170 | * bounds checking for every single attribute as we construct an |
1171 | * UPDATE. | |
d62a17ae | 1172 | */ |
424ab01d | 1173 | peer->obuf_work = |
d62a17ae | 1174 | stream_new(BGP_MAX_PACKET_SIZE + BGP_MAX_PACKET_SIZE_OVERFLOW); |
74ffbfe6 QY |
1175 | peer->ibuf_work = |
1176 | ringbuf_new(BGP_MAX_PACKET_SIZE * BGP_READ_PACKET_MAX); | |
1177 | ||
d62a17ae | 1178 | peer->scratch = stream_new(BGP_MAX_PACKET_SIZE); |
718e3744 | 1179 | |
d62a17ae | 1180 | bgp_sync_init(peer); |
718e3744 | 1181 | |
d62a17ae | 1182 | /* Get service port number. */ |
1183 | sp = getservbyname("bgp", "tcp"); | |
1184 | peer->port = (sp == NULL) ? BGP_PORT_DEFAULT : ntohs(sp->s_port); | |
718e3744 | 1185 | |
d62a17ae | 1186 | QOBJ_REG(peer, peer); |
1187 | return peer; | |
718e3744 | 1188 | } |
1189 | ||
1ff9a340 DS |
1190 | /* |
1191 | * This function is invoked when a duplicate peer structure associated with | |
1192 | * a neighbor is being deleted. If this about-to-be-deleted structure is | |
1193 | * the one with all the config, then we have to copy over the info. | |
1194 | */ | |
d62a17ae | 1195 | void peer_xfer_config(struct peer *peer_dst, struct peer *peer_src) |
1196 | { | |
1197 | struct peer_af *paf; | |
1198 | afi_t afi; | |
1199 | safi_t safi; | |
1200 | int afidx; | |
1201 | ||
1202 | assert(peer_src); | |
1203 | assert(peer_dst); | |
1204 | ||
1205 | /* The following function is used by both peer group config copy to | |
1206 | * individual peer and when we transfer config | |
1207 | */ | |
1208 | if (peer_src->change_local_as) | |
1209 | peer_dst->change_local_as = peer_src->change_local_as; | |
1210 | ||
1211 | /* peer flags apply */ | |
1212 | peer_dst->flags = peer_src->flags; | |
1213 | peer_dst->cap = peer_src->cap; | |
d62a17ae | 1214 | |
1215 | peer_dst->local_as = peer_src->local_as; | |
d62a17ae | 1216 | peer_dst->port = peer_src->port; |
82417ac2 | 1217 | (void)peer_sort(peer_dst); |
d62a17ae | 1218 | peer_dst->rmap_type = peer_src->rmap_type; |
1219 | ||
1220 | /* Timers */ | |
1221 | peer_dst->holdtime = peer_src->holdtime; | |
1222 | peer_dst->keepalive = peer_src->keepalive; | |
1223 | peer_dst->connect = peer_src->connect; | |
1224 | peer_dst->v_holdtime = peer_src->v_holdtime; | |
1225 | peer_dst->v_keepalive = peer_src->v_keepalive; | |
1226 | peer_dst->routeadv = peer_src->routeadv; | |
1227 | peer_dst->v_routeadv = peer_src->v_routeadv; | |
1228 | ||
1229 | /* password apply */ | |
1230 | if (peer_src->password && !peer_dst->password) | |
1231 | peer_dst->password = | |
1232 | XSTRDUP(MTYPE_PEER_PASSWORD, peer_src->password); | |
1233 | ||
05c7a1cc QY |
1234 | FOREACH_AFI_SAFI (afi, safi) { |
1235 | peer_dst->afc[afi][safi] = peer_src->afc[afi][safi]; | |
1236 | peer_dst->af_flags[afi][safi] = peer_src->af_flags[afi][safi]; | |
1237 | peer_dst->allowas_in[afi][safi] = | |
1238 | peer_src->allowas_in[afi][safi]; | |
1239 | peer_dst->weight[afi][safi] = peer_src->weight[afi][safi]; | |
dcc68b5e MS |
1240 | peer_dst->addpath_type[afi][safi] = |
1241 | peer_src->addpath_type[afi][safi]; | |
05c7a1cc | 1242 | } |
d62a17ae | 1243 | |
1244 | for (afidx = BGP_AF_START; afidx < BGP_AF_MAX; afidx++) { | |
1245 | paf = peer_src->peer_af_array[afidx]; | |
1246 | if (paf != NULL) | |
1247 | peer_af_create(peer_dst, paf->afi, paf->safi); | |
1248 | } | |
1249 | ||
1250 | /* update-source apply */ | |
1251 | if (peer_src->update_source) { | |
1252 | if (peer_dst->update_source) | |
1253 | sockunion_free(peer_dst->update_source); | |
1254 | if (peer_dst->update_if) { | |
1255 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer_dst->update_if); | |
1256 | peer_dst->update_if = NULL; | |
1257 | } | |
1258 | peer_dst->update_source = | |
1259 | sockunion_dup(peer_src->update_source); | |
1260 | } else if (peer_src->update_if) { | |
0a22ddfb | 1261 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer_dst->update_if); |
d62a17ae | 1262 | if (peer_dst->update_source) { |
1263 | sockunion_free(peer_dst->update_source); | |
1264 | peer_dst->update_source = NULL; | |
1265 | } | |
1266 | peer_dst->update_if = | |
1267 | XSTRDUP(MTYPE_PEER_UPDATE_SOURCE, peer_src->update_if); | |
1268 | } | |
1269 | ||
1270 | if (peer_src->ifname) { | |
0a22ddfb | 1271 | XFREE(MTYPE_BGP_PEER_IFNAME, peer_dst->ifname); |
d62a17ae | 1272 | |
1273 | peer_dst->ifname = | |
1274 | XSTRDUP(MTYPE_BGP_PEER_IFNAME, peer_src->ifname); | |
1275 | } | |
1276 | } | |
1277 | ||
1278 | static int bgp_peer_conf_if_to_su_update_v4(struct peer *peer, | |
1279 | struct interface *ifp) | |
1280 | { | |
1281 | struct connected *ifc; | |
1282 | struct prefix p; | |
d7c0a89a | 1283 | uint32_t addr; |
d62a17ae | 1284 | struct listnode *node; |
1285 | ||
1286 | /* If our IPv4 address on the interface is /30 or /31, we can derive the | |
1287 | * IPv4 address of the other end. | |
1288 | */ | |
1289 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, ifc)) { | |
1290 | if (ifc->address && (ifc->address->family == AF_INET)) { | |
1291 | PREFIX_COPY_IPV4(&p, CONNECTED_PREFIX(ifc)); | |
1292 | if (p.prefixlen == 30) { | |
1293 | peer->su.sa.sa_family = AF_INET; | |
1294 | addr = ntohl(p.u.prefix4.s_addr); | |
1295 | if (addr % 4 == 1) | |
1296 | peer->su.sin.sin_addr.s_addr = | |
1297 | htonl(addr + 1); | |
1298 | else if (addr % 4 == 2) | |
1299 | peer->su.sin.sin_addr.s_addr = | |
1300 | htonl(addr - 1); | |
8ffedcea | 1301 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
d62a17ae | 1302 | peer->su.sin.sin_len = |
1303 | sizeof(struct sockaddr_in); | |
8ffedcea | 1304 | #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */ |
d62a17ae | 1305 | return 1; |
1306 | } else if (p.prefixlen == 31) { | |
1307 | peer->su.sa.sa_family = AF_INET; | |
1308 | addr = ntohl(p.u.prefix4.s_addr); | |
1309 | if (addr % 2 == 0) | |
1310 | peer->su.sin.sin_addr.s_addr = | |
1311 | htonl(addr + 1); | |
1312 | else | |
1313 | peer->su.sin.sin_addr.s_addr = | |
1314 | htonl(addr - 1); | |
8ffedcea | 1315 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
d62a17ae | 1316 | peer->su.sin.sin_len = |
1317 | sizeof(struct sockaddr_in); | |
8ffedcea | 1318 | #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */ |
d62a17ae | 1319 | return 1; |
1320 | } else if (bgp_debug_neighbor_events(peer)) | |
1321 | zlog_debug( | |
1322 | "%s: IPv4 interface address is not /30 or /31, v4 session not started", | |
1323 | peer->conf_if); | |
1324 | } | |
1325 | } | |
1326 | ||
1327 | return 0; | |
1328 | } | |
1329 | ||
1330 | static int bgp_peer_conf_if_to_su_update_v6(struct peer *peer, | |
1331 | struct interface *ifp) | |
1332 | { | |
1333 | struct nbr_connected *ifc_nbr; | |
1334 | ||
1335 | /* Have we learnt the peer's IPv6 link-local address? */ | |
1336 | if (ifp->nbr_connected | |
1337 | && (ifc_nbr = listnode_head(ifp->nbr_connected))) { | |
1338 | peer->su.sa.sa_family = AF_INET6; | |
1339 | memcpy(&peer->su.sin6.sin6_addr, &ifc_nbr->address->u.prefix, | |
1340 | sizeof(struct in6_addr)); | |
a80beece | 1341 | #ifdef SIN6_LEN |
d62a17ae | 1342 | peer->su.sin6.sin6_len = sizeof(struct sockaddr_in6); |
a80beece | 1343 | #endif |
d62a17ae | 1344 | peer->su.sin6.sin6_scope_id = ifp->ifindex; |
1345 | return 1; | |
1346 | } | |
8ffedcea | 1347 | |
d62a17ae | 1348 | return 0; |
89ca90fa | 1349 | } |
1350 | ||
1351 | /* | |
1352 | * Set or reset the peer address socketunion structure based on the | |
1353 | * learnt/derived peer address. If the address has changed, update the | |
1354 | * password on the listen socket, if needed. | |
1355 | */ | |
d62a17ae | 1356 | void bgp_peer_conf_if_to_su_update(struct peer *peer) |
1357 | { | |
1358 | struct interface *ifp; | |
1359 | int prev_family; | |
1360 | int peer_addr_updated = 0; | |
1361 | ||
1362 | if (!peer->conf_if) | |
1363 | return; | |
1364 | ||
d12b745c DS |
1365 | /* |
1366 | * Our peer structure is stored in the bgp->peerhash | |
1367 | * release it before we modify anything. | |
1368 | */ | |
1369 | hash_release(peer->bgp->peerhash, peer); | |
1370 | ||
d62a17ae | 1371 | prev_family = peer->su.sa.sa_family; |
a36898e7 | 1372 | if ((ifp = if_lookup_by_name(peer->conf_if, peer->bgp->vrf_id))) { |
d62a17ae | 1373 | peer->ifp = ifp; |
1374 | /* If BGP unnumbered is not "v6only", we first see if we can | |
1375 | * derive the | |
1376 | * peer's IPv4 address. | |
1377 | */ | |
1378 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_IFPEER_V6ONLY)) | |
1379 | peer_addr_updated = | |
1380 | bgp_peer_conf_if_to_su_update_v4(peer, ifp); | |
1381 | ||
1382 | /* If "v6only" or we can't derive peer's IPv4 address, see if | |
1383 | * we've | |
1384 | * learnt the peer's IPv6 link-local address. This is from the | |
1385 | * source | |
1386 | * IPv6 address in router advertisement. | |
1387 | */ | |
1388 | if (!peer_addr_updated) | |
1389 | peer_addr_updated = | |
1390 | bgp_peer_conf_if_to_su_update_v6(peer, ifp); | |
1391 | } | |
1392 | /* If we could derive the peer address, we may need to install the | |
1393 | * password | |
1394 | * configured for the peer, if any, on the listen socket. Otherwise, | |
1395 | * mark | |
1396 | * that peer's address is not available and uninstall the password, if | |
1397 | * needed. | |
1398 | */ | |
1399 | if (peer_addr_updated) { | |
a14810f4 PM |
1400 | if (CHECK_FLAG(peer->flags, PEER_FLAG_PASSWORD) |
1401 | && prev_family == AF_UNSPEC) | |
d62a17ae | 1402 | bgp_md5_set(peer); |
1403 | } else { | |
a14810f4 PM |
1404 | if (CHECK_FLAG(peer->flags, PEER_FLAG_PASSWORD) |
1405 | && prev_family != AF_UNSPEC) | |
d62a17ae | 1406 | bgp_md5_unset(peer); |
1407 | peer->su.sa.sa_family = AF_UNSPEC; | |
1408 | memset(&peer->su.sin6.sin6_addr, 0, sizeof(struct in6_addr)); | |
1409 | } | |
1410 | ||
d12b745c DS |
1411 | /* |
1412 | * Since our su changed we need to del/add peer to the peerhash | |
1413 | */ | |
d62a17ae | 1414 | hash_get(peer->bgp->peerhash, peer, hash_alloc_intern); |
a80beece DS |
1415 | } |
1416 | ||
318cac96 DW |
1417 | static void bgp_recalculate_afi_safi_bestpaths(struct bgp *bgp, afi_t afi, |
1418 | safi_t safi) | |
1419 | { | |
1420 | struct bgp_node *rn, *nrn; | |
67009e22 | 1421 | struct bgp_table *table; |
318cac96 DW |
1422 | |
1423 | for (rn = bgp_table_top(bgp->rib[afi][safi]); rn; | |
1424 | rn = bgp_route_next(rn)) { | |
67009e22 DS |
1425 | table = bgp_node_get_bgp_table_info(rn); |
1426 | if (table != NULL) { | |
318cac96 DW |
1427 | /* Special handling for 2-level routing |
1428 | * tables. */ | |
a4d82a8a | 1429 | if (safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP |
318cac96 | 1430 | || safi == SAFI_EVPN) { |
67009e22 | 1431 | for (nrn = bgp_table_top(table); |
a4d82a8a PZ |
1432 | nrn; nrn = bgp_route_next(nrn)) |
1433 | bgp_process(bgp, nrn, afi, safi); | |
318cac96 DW |
1434 | } else |
1435 | bgp_process(bgp, rn, afi, safi); | |
1436 | } | |
1437 | } | |
1438 | } | |
1439 | ||
06370dac DW |
1440 | /* Force a bestpath recalculation for all prefixes. This is used |
1441 | * when 'bgp bestpath' commands are entered. | |
1442 | */ | |
d62a17ae | 1443 | void bgp_recalculate_all_bestpaths(struct bgp *bgp) |
1444 | { | |
1445 | afi_t afi; | |
1446 | safi_t safi; | |
d62a17ae | 1447 | |
05c7a1cc QY |
1448 | FOREACH_AFI_SAFI (afi, safi) { |
1449 | bgp_recalculate_afi_safi_bestpaths(bgp, afi, safi); | |
d62a17ae | 1450 | } |
06370dac DW |
1451 | } |
1452 | ||
19bd3dff DS |
1453 | /* |
1454 | * Create new BGP peer. | |
1455 | * | |
1456 | * conf_if and su are mutually exclusive if configuring from the cli. | |
1457 | * If we are handing a doppelganger, then we *must* pass in both | |
1458 | * the original peer's su and conf_if, so that we can appropriately | |
1459 | * track the bgp->peerhash( ie we don't want to remove the current | |
1460 | * one from the config ). | |
1461 | */ | |
d62a17ae | 1462 | struct peer *peer_create(union sockunion *su, const char *conf_if, |
1463 | struct bgp *bgp, as_t local_as, as_t remote_as, | |
1464 | int as_type, afi_t afi, safi_t safi, | |
1465 | struct peer_group *group) | |
1466 | { | |
1467 | int active; | |
1468 | struct peer *peer; | |
1469 | char buf[SU_ADDRSTRLEN]; | |
1470 | ||
1471 | peer = peer_new(bgp); | |
1472 | if (conf_if) { | |
1473 | peer->conf_if = XSTRDUP(MTYPE_PEER_CONF_IF, conf_if); | |
19bd3dff DS |
1474 | if (su) |
1475 | peer->su = *su; | |
1476 | else | |
1477 | bgp_peer_conf_if_to_su_update(peer); | |
0a22ddfb | 1478 | XFREE(MTYPE_BGP_PEER_HOST, peer->host); |
d62a17ae | 1479 | peer->host = XSTRDUP(MTYPE_BGP_PEER_HOST, conf_if); |
1480 | } else if (su) { | |
1481 | peer->su = *su; | |
1482 | sockunion2str(su, buf, SU_ADDRSTRLEN); | |
0a22ddfb | 1483 | XFREE(MTYPE_BGP_PEER_HOST, peer->host); |
d62a17ae | 1484 | peer->host = XSTRDUP(MTYPE_BGP_PEER_HOST, buf); |
1485 | } | |
1486 | peer->local_as = local_as; | |
1487 | peer->as = remote_as; | |
1488 | peer->as_type = as_type; | |
1489 | peer->local_id = bgp->router_id; | |
1490 | peer->v_holdtime = bgp->default_holdtime; | |
1491 | peer->v_keepalive = bgp->default_keepalive; | |
b90a8e13 PM |
1492 | peer->v_routeadv = (peer_sort(peer) == BGP_PEER_IBGP) |
1493 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
1494 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 1495 | |
1496 | peer = peer_lock(peer); /* bgp peer list reference */ | |
1497 | peer->group = group; | |
1498 | listnode_add_sort(bgp->peer, peer); | |
1499 | hash_get(bgp->peerhash, peer, hash_alloc_intern); | |
1500 | ||
4961a5a2 | 1501 | /* Adjust update-group coalesce timer heuristics for # peers. */ |
37a333fe | 1502 | if (bgp->heuristic_coalesce) { |
14b8641a QY |
1503 | long ct = BGP_DEFAULT_SUBGROUP_COALESCE_TIME |
1504 | + (bgp->peer->count | |
1505 | * BGP_PEER_ADJUST_SUBGROUP_COALESCE_TIME); | |
1506 | bgp->coalesce_time = MIN(BGP_MAX_SUBGROUP_COALESCE_TIME, ct); | |
1507 | } | |
4961a5a2 | 1508 | |
d62a17ae | 1509 | active = peer_active(peer); |
05912a17 DD |
1510 | if (!active) { |
1511 | if (peer->su.sa.sa_family == AF_UNSPEC) | |
1512 | peer->last_reset = PEER_DOWN_NBR_ADDR; | |
1513 | else | |
1514 | peer->last_reset = PEER_DOWN_NOAFI_ACTIVATED; | |
1515 | } | |
d62a17ae | 1516 | |
1517 | /* Last read and reset time set */ | |
1518 | peer->readtime = peer->resettime = bgp_clock(); | |
1519 | ||
1520 | /* Default TTL set. */ | |
a0903cd2 | 1521 | peer->ttl = (peer->sort == BGP_PEER_IBGP) ? MAXTTL : BGP_DEFAULT_TTL; |
d62a17ae | 1522 | |
1523 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); | |
1524 | ||
1525 | if (afi && safi) { | |
1526 | peer->afc[afi][safi] = 1; | |
1527 | peer_af_create(peer, afi, safi); | |
1528 | } | |
1529 | ||
f26845f9 QY |
1530 | /* auto shutdown if configured */ |
1531 | if (bgp->autoshutdown) | |
1532 | peer_flag_set(peer, PEER_FLAG_SHUTDOWN); | |
d62a17ae | 1533 | /* Set up peer's events and timers. */ |
f26845f9 | 1534 | else if (!active && peer_active(peer)) |
d62a17ae | 1535 | bgp_timer_set(peer); |
1536 | ||
1537 | return peer; | |
718e3744 | 1538 | } |
1539 | ||
dd793e4a | 1540 | /* Make accept BGP peer. This function is only called from the test code */ |
d62a17ae | 1541 | struct peer *peer_create_accept(struct bgp *bgp) |
eb821189 | 1542 | { |
d62a17ae | 1543 | struct peer *peer; |
eb821189 | 1544 | |
d62a17ae | 1545 | peer = peer_new(bgp); |
1ff9a340 | 1546 | |
d62a17ae | 1547 | peer = peer_lock(peer); /* bgp peer list reference */ |
1548 | listnode_add_sort(bgp->peer, peer); | |
eb821189 | 1549 | |
d62a17ae | 1550 | return peer; |
eb821189 | 1551 | } |
1552 | ||
318cac96 DW |
1553 | /* |
1554 | * Return true if we have a peer configured to use this afi/safi | |
1555 | */ | |
1556 | int bgp_afi_safi_peer_exists(struct bgp *bgp, afi_t afi, safi_t safi) | |
1557 | { | |
1558 | struct listnode *node; | |
1559 | struct peer *peer; | |
1560 | ||
1561 | for (ALL_LIST_ELEMENTS_RO(bgp->peer, node, peer)) { | |
1562 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE)) | |
1563 | continue; | |
1564 | ||
1565 | if (peer->afc[afi][safi]) | |
1566 | return 1; | |
1567 | } | |
1568 | ||
1569 | return 0; | |
1570 | } | |
1571 | ||
718e3744 | 1572 | /* Change peer's AS number. */ |
d62a17ae | 1573 | void peer_as_change(struct peer *peer, as_t as, int as_specified) |
1574 | { | |
1575 | bgp_peer_sort_t type; | |
d62a17ae | 1576 | |
1577 | /* Stop peer. */ | |
1578 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
1579 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
1580 | peer->last_reset = PEER_DOWN_REMOTE_AS_CHANGE; | |
1581 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
1582 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
1583 | } else | |
1584 | bgp_session_reset(peer); | |
1585 | } | |
1586 | type = peer_sort(peer); | |
1587 | peer->as = as; | |
1588 | peer->as_type = as_specified; | |
1589 | ||
1590 | if (bgp_config_check(peer->bgp, BGP_CONFIG_CONFEDERATION) | |
1591 | && !bgp_confederation_peers_check(peer->bgp, as) | |
1592 | && peer->bgp->as != as) | |
1593 | peer->local_as = peer->bgp->confed_id; | |
1594 | else | |
1595 | peer->local_as = peer->bgp->as; | |
1596 | ||
1597 | /* Advertisement-interval reset */ | |
b90a8e13 PM |
1598 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_ROUTEADV)) { |
1599 | peer->v_routeadv = (peer_sort(peer) == BGP_PEER_IBGP) | |
1600 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
1601 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 1602 | } |
b90a8e13 | 1603 | |
d62a17ae | 1604 | /* TTL reset */ |
1605 | if (peer_sort(peer) == BGP_PEER_IBGP) | |
1606 | peer->ttl = MAXTTL; | |
1607 | else if (type == BGP_PEER_IBGP) | |
a0903cd2 | 1608 | peer->ttl = BGP_DEFAULT_TTL; |
d62a17ae | 1609 | |
1610 | /* reflector-client reset */ | |
1611 | if (peer_sort(peer) != BGP_PEER_IBGP) { | |
1612 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_UNICAST], | |
1613 | PEER_FLAG_REFLECTOR_CLIENT); | |
1614 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_MULTICAST], | |
1615 | PEER_FLAG_REFLECTOR_CLIENT); | |
1616 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_LABELED_UNICAST], | |
1617 | PEER_FLAG_REFLECTOR_CLIENT); | |
1618 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_MPLS_VPN], | |
1619 | PEER_FLAG_REFLECTOR_CLIENT); | |
1620 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_ENCAP], | |
1621 | PEER_FLAG_REFLECTOR_CLIENT); | |
7c40bf39 | 1622 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_FLOWSPEC], |
1623 | PEER_FLAG_REFLECTOR_CLIENT); | |
d62a17ae | 1624 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_UNICAST], |
1625 | PEER_FLAG_REFLECTOR_CLIENT); | |
1626 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_MULTICAST], | |
1627 | PEER_FLAG_REFLECTOR_CLIENT); | |
1628 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_LABELED_UNICAST], | |
1629 | PEER_FLAG_REFLECTOR_CLIENT); | |
1630 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_MPLS_VPN], | |
1631 | PEER_FLAG_REFLECTOR_CLIENT); | |
1632 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_ENCAP], | |
1633 | PEER_FLAG_REFLECTOR_CLIENT); | |
7c40bf39 | 1634 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_FLOWSPEC], |
1635 | PEER_FLAG_REFLECTOR_CLIENT); | |
d62a17ae | 1636 | UNSET_FLAG(peer->af_flags[AFI_L2VPN][SAFI_EVPN], |
1637 | PEER_FLAG_REFLECTOR_CLIENT); | |
1638 | } | |
1639 | ||
1640 | /* local-as reset */ | |
1641 | if (peer_sort(peer) != BGP_PEER_EBGP) { | |
1642 | peer->change_local_as = 0; | |
a14810f4 PM |
1643 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS); |
1644 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
1645 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
d62a17ae | 1646 | } |
718e3744 | 1647 | } |
1648 | ||
1649 | /* If peer does not exist, create new one. If peer already exists, | |
1650 | set AS number to the peer. */ | |
d62a17ae | 1651 | int peer_remote_as(struct bgp *bgp, union sockunion *su, const char *conf_if, |
1652 | as_t *as, int as_type, afi_t afi, safi_t safi) | |
1653 | { | |
1654 | struct peer *peer; | |
1655 | as_t local_as; | |
1656 | ||
1657 | if (conf_if) | |
1658 | peer = peer_lookup_by_conf_if(bgp, conf_if); | |
1659 | else | |
1660 | peer = peer_lookup(bgp, su); | |
1661 | ||
1662 | if (peer) { | |
1663 | /* Not allowed for a dynamic peer. */ | |
1664 | if (peer_dynamic_neighbor(peer)) { | |
1665 | *as = peer->as; | |
1666 | return BGP_ERR_INVALID_FOR_DYNAMIC_PEER; | |
1667 | } | |
718e3744 | 1668 | |
d62a17ae | 1669 | /* When this peer is a member of peer-group. */ |
1670 | if (peer->group) { | |
faa16034 DS |
1671 | /* peer-group already has AS number/internal/external */ |
1672 | if (peer->group->conf->as | |
1673 | || peer->group->conf->as_type) { | |
d62a17ae | 1674 | /* Return peer group's AS number. */ |
1675 | *as = peer->group->conf->as; | |
1676 | return BGP_ERR_PEER_GROUP_MEMBER; | |
1677 | } | |
faa16034 DS |
1678 | |
1679 | bgp_peer_sort_t peer_sort_type = | |
1680 | peer_sort(peer->group->conf); | |
1681 | ||
1682 | /* Explicit AS numbers used, compare AS numbers */ | |
1683 | if (as_type == AS_SPECIFIED) { | |
1684 | if (((peer_sort_type == BGP_PEER_IBGP) | |
1685 | && (bgp->as != *as)) | |
1686 | || ((peer_sort_type == BGP_PEER_EBGP) | |
1687 | && (bgp->as == *as))) { | |
d62a17ae | 1688 | *as = peer->as; |
1689 | return BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT; | |
1690 | } | |
1691 | } else { | |
faa16034 DS |
1692 | /* internal/external used, compare as-types */ |
1693 | if (((peer_sort_type == BGP_PEER_IBGP) | |
1694 | && (as_type != AS_INTERNAL)) | |
1695 | || ((peer_sort_type == BGP_PEER_EBGP) | |
1696 | && (as_type != AS_EXTERNAL))) { | |
d62a17ae | 1697 | *as = peer->as; |
1698 | return BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT; | |
1699 | } | |
1700 | } | |
1701 | } | |
93406d87 | 1702 | |
d62a17ae | 1703 | /* Existing peer's AS number change. */ |
1704 | if (((peer->as_type == AS_SPECIFIED) && peer->as != *as) | |
1705 | || (peer->as_type != as_type)) | |
1706 | peer_as_change(peer, *as, as_type); | |
1707 | } else { | |
1708 | if (conf_if) | |
1709 | return BGP_ERR_NO_INTERFACE_CONFIG; | |
1710 | ||
1711 | /* If the peer is not part of our confederation, and its not an | |
1712 | iBGP peer then spoof the source AS */ | |
1713 | if (bgp_config_check(bgp, BGP_CONFIG_CONFEDERATION) | |
1714 | && !bgp_confederation_peers_check(bgp, *as) | |
1715 | && bgp->as != *as) | |
1716 | local_as = bgp->confed_id; | |
1717 | else | |
1718 | local_as = bgp->as; | |
1719 | ||
1720 | /* If this is IPv4 unicast configuration and "no bgp default | |
1721 | ipv4-unicast" is specified. */ | |
1722 | ||
1723 | if (bgp_flag_check(bgp, BGP_FLAG_NO_DEFAULT_IPV4) | |
1724 | && afi == AFI_IP && safi == SAFI_UNICAST) | |
1725 | peer_create(su, conf_if, bgp, local_as, *as, as_type, 0, | |
1726 | 0, NULL); | |
1727 | else | |
1728 | peer_create(su, conf_if, bgp, local_as, *as, as_type, | |
1729 | afi, safi, NULL); | |
1730 | } | |
718e3744 | 1731 | |
d62a17ae | 1732 | return 0; |
1733 | } | |
718e3744 | 1734 | |
9790f44f DS |
1735 | static void peer_group2peer_config_copy_af(struct peer_group *group, |
1736 | struct peer *peer, afi_t afi, | |
1737 | safi_t safi) | |
1738 | { | |
1739 | int in = FILTER_IN; | |
1740 | int out = FILTER_OUT; | |
4c391142 | 1741 | uint32_t flags_tmp; |
e7103a96 PM |
1742 | uint32_t pflags_ovrd; |
1743 | uint8_t *pfilter_ovrd; | |
9790f44f | 1744 | struct peer *conf; |
9790f44f DS |
1745 | |
1746 | conf = group->conf; | |
e7103a96 PM |
1747 | pflags_ovrd = peer->af_flags_override[afi][safi]; |
1748 | pfilter_ovrd = &peer->filter_override[afi][safi][in]; | |
9790f44f DS |
1749 | |
1750 | /* peer af_flags apply */ | |
4c391142 PM |
1751 | flags_tmp = conf->af_flags[afi][safi] & ~pflags_ovrd; |
1752 | flags_tmp ^= conf->af_flags_invert[afi][safi] | |
1753 | ^ peer->af_flags_invert[afi][safi]; | |
1754 | flags_tmp &= ~pflags_ovrd; | |
1755 | ||
1756 | UNSET_FLAG(peer->af_flags[afi][safi], ~pflags_ovrd); | |
1757 | SET_FLAG(peer->af_flags[afi][safi], flags_tmp); | |
1758 | SET_FLAG(peer->af_flags_invert[afi][safi], | |
1759 | conf->af_flags_invert[afi][safi]); | |
9790f44f DS |
1760 | |
1761 | /* maximum-prefix */ | |
e7103a96 PM |
1762 | if (!CHECK_FLAG(pflags_ovrd, PEER_FLAG_MAX_PREFIX)) { |
1763 | PEER_ATTR_INHERIT(peer, group, pmax[afi][safi]); | |
1764 | PEER_ATTR_INHERIT(peer, group, pmax_threshold[afi][safi]); | |
1765 | PEER_ATTR_INHERIT(peer, group, pmax_restart[afi][safi]); | |
1766 | } | |
9790f44f DS |
1767 | |
1768 | /* allowas-in */ | |
e7103a96 PM |
1769 | if (!CHECK_FLAG(pflags_ovrd, PEER_FLAG_ALLOWAS_IN)) |
1770 | PEER_ATTR_INHERIT(peer, group, allowas_in[afi][safi]); | |
9790f44f DS |
1771 | |
1772 | /* weight */ | |
e7103a96 PM |
1773 | if (!CHECK_FLAG(pflags_ovrd, PEER_FLAG_WEIGHT)) |
1774 | PEER_ATTR_INHERIT(peer, group, weight[afi][safi]); | |
9790f44f DS |
1775 | |
1776 | /* default-originate route-map */ | |
e7103a96 PM |
1777 | if (!CHECK_FLAG(pflags_ovrd, PEER_FLAG_DEFAULT_ORIGINATE)) { |
1778 | PEER_STR_ATTR_INHERIT(peer, group, default_rmap[afi][safi].name, | |
1779 | MTYPE_ROUTE_MAP_NAME); | |
1780 | PEER_ATTR_INHERIT(peer, group, default_rmap[afi][safi].map); | |
9790f44f DS |
1781 | } |
1782 | ||
1783 | /* inbound filter apply */ | |
e7103a96 PM |
1784 | if (!CHECK_FLAG(pfilter_ovrd[in], PEER_FT_DISTRIBUTE_LIST)) { |
1785 | PEER_STR_ATTR_INHERIT(peer, group, | |
1786 | filter[afi][safi].dlist[in].name, | |
1787 | MTYPE_BGP_FILTER_NAME); | |
1788 | PEER_ATTR_INHERIT(peer, group, | |
1789 | filter[afi][safi].dlist[in].alist); | |
9790f44f DS |
1790 | } |
1791 | ||
e7103a96 PM |
1792 | if (!CHECK_FLAG(pfilter_ovrd[in], PEER_FT_PREFIX_LIST)) { |
1793 | PEER_STR_ATTR_INHERIT(peer, group, | |
1794 | filter[afi][safi].plist[in].name, | |
1795 | MTYPE_BGP_FILTER_NAME); | |
1796 | PEER_ATTR_INHERIT(peer, group, | |
1797 | filter[afi][safi].plist[in].plist); | |
9790f44f DS |
1798 | } |
1799 | ||
e7103a96 PM |
1800 | if (!CHECK_FLAG(pfilter_ovrd[in], PEER_FT_FILTER_LIST)) { |
1801 | PEER_STR_ATTR_INHERIT(peer, group, | |
1802 | filter[afi][safi].aslist[in].name, | |
1803 | MTYPE_BGP_FILTER_NAME); | |
1804 | PEER_ATTR_INHERIT(peer, group, | |
1805 | filter[afi][safi].aslist[in].aslist); | |
9790f44f DS |
1806 | } |
1807 | ||
e7103a96 PM |
1808 | if (!CHECK_FLAG(pfilter_ovrd[RMAP_IN], PEER_FT_ROUTE_MAP)) { |
1809 | PEER_STR_ATTR_INHERIT(peer, group, | |
1810 | filter[afi][safi].map[in].name, | |
1811 | MTYPE_BGP_FILTER_NAME); | |
1812 | PEER_ATTR_INHERIT(peer, group, | |
1813 | filter[afi][safi].map[RMAP_IN].map); | |
9790f44f DS |
1814 | } |
1815 | ||
1816 | /* outbound filter apply */ | |
e7103a96 PM |
1817 | if (!CHECK_FLAG(pfilter_ovrd[out], PEER_FT_DISTRIBUTE_LIST)) { |
1818 | PEER_STR_ATTR_INHERIT(peer, group, | |
1819 | filter[afi][safi].dlist[out].name, | |
1820 | MTYPE_BGP_FILTER_NAME); | |
1821 | PEER_ATTR_INHERIT(peer, group, | |
1822 | filter[afi][safi].dlist[out].alist); | |
9790f44f DS |
1823 | } |
1824 | ||
e7103a96 PM |
1825 | if (!CHECK_FLAG(pfilter_ovrd[out], PEER_FT_PREFIX_LIST)) { |
1826 | PEER_STR_ATTR_INHERIT(peer, group, | |
1827 | filter[afi][safi].plist[out].name, | |
1828 | MTYPE_BGP_FILTER_NAME); | |
1829 | PEER_ATTR_INHERIT(peer, group, | |
1830 | filter[afi][safi].plist[out].plist); | |
9790f44f DS |
1831 | } |
1832 | ||
e7103a96 PM |
1833 | if (!CHECK_FLAG(pfilter_ovrd[out], PEER_FT_FILTER_LIST)) { |
1834 | PEER_STR_ATTR_INHERIT(peer, group, | |
1835 | filter[afi][safi].aslist[out].name, | |
1836 | MTYPE_BGP_FILTER_NAME); | |
1837 | PEER_ATTR_INHERIT(peer, group, | |
1838 | filter[afi][safi].aslist[out].aslist); | |
1839 | } | |
1840 | ||
1841 | if (!CHECK_FLAG(pfilter_ovrd[RMAP_OUT], PEER_FT_ROUTE_MAP)) { | |
1842 | PEER_STR_ATTR_INHERIT(peer, group, | |
1843 | filter[afi][safi].map[RMAP_OUT].name, | |
1844 | MTYPE_BGP_FILTER_NAME); | |
1845 | PEER_ATTR_INHERIT(peer, group, | |
1846 | filter[afi][safi].map[RMAP_OUT].map); | |
1847 | } | |
1848 | ||
1849 | /* nondirectional filter apply */ | |
1850 | if (!CHECK_FLAG(pfilter_ovrd[0], PEER_FT_UNSUPPRESS_MAP)) { | |
1851 | PEER_STR_ATTR_INHERIT(peer, group, filter[afi][safi].usmap.name, | |
1852 | MTYPE_BGP_FILTER_NAME); | |
1853 | PEER_ATTR_INHERIT(peer, group, filter[afi][safi].usmap.map); | |
9790f44f | 1854 | } |
dcc68b5e MS |
1855 | |
1856 | if (peer->addpath_type[afi][safi] == BGP_ADDPATH_NONE) { | |
1857 | peer->addpath_type[afi][safi] = conf->addpath_type[afi][safi]; | |
1858 | bgp_addpath_type_changed(conf->bgp); | |
1859 | } | |
9790f44f DS |
1860 | } |
1861 | ||
1862 | static int peer_activate_af(struct peer *peer, afi_t afi, safi_t safi) | |
d62a17ae | 1863 | { |
1864 | int active; | |
9bf904cc | 1865 | struct peer *other; |
718e3744 | 1866 | |
d62a17ae | 1867 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
e50f7cfd | 1868 | flog_err(EC_BGP_PEER_GROUP, "%s was called for peer-group %s", |
1c50c1c0 | 1869 | __func__, peer->host); |
d62a17ae | 1870 | return 1; |
1871 | } | |
3f9c7369 | 1872 | |
d62a17ae | 1873 | /* Do not activate a peer for both SAFI_UNICAST and SAFI_LABELED_UNICAST |
1874 | */ | |
1875 | if ((safi == SAFI_UNICAST && peer->afc[afi][SAFI_LABELED_UNICAST]) | |
1876 | || (safi == SAFI_LABELED_UNICAST && peer->afc[afi][SAFI_UNICAST])) | |
1877 | return BGP_ERR_PEER_SAFI_CONFLICT; | |
1878 | ||
1879 | /* Nothing to do if we've already activated this peer */ | |
1880 | if (peer->afc[afi][safi]) | |
1881 | return 0; | |
1882 | ||
1883 | if (peer_af_create(peer, afi, safi) == NULL) | |
1884 | return 1; | |
1885 | ||
1886 | active = peer_active(peer); | |
1887 | peer->afc[afi][safi] = 1; | |
1888 | ||
9790f44f | 1889 | if (peer->group) |
a4d82a8a | 1890 | peer_group2peer_config_copy_af(peer->group, peer, afi, safi); |
9790f44f | 1891 | |
d62a17ae | 1892 | if (!active && peer_active(peer)) { |
1893 | bgp_timer_set(peer); | |
1894 | } else { | |
1895 | if (peer->status == Established) { | |
1896 | if (CHECK_FLAG(peer->cap, PEER_CAP_DYNAMIC_RCV)) { | |
1897 | peer->afc_adv[afi][safi] = 1; | |
1898 | bgp_capability_send(peer, afi, safi, | |
1899 | CAPABILITY_CODE_MP, | |
1900 | CAPABILITY_ACTION_SET); | |
1901 | if (peer->afc_recv[afi][safi]) { | |
1902 | peer->afc_nego[afi][safi] = 1; | |
1903 | bgp_announce_route(peer, afi, safi); | |
1904 | } | |
1905 | } else { | |
1906 | peer->last_reset = PEER_DOWN_AF_ACTIVATE; | |
1907 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
1908 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
1909 | } | |
1910 | } | |
64c1a9b5 DS |
1911 | if (peer->status == OpenSent || peer->status == OpenConfirm) { |
1912 | peer->last_reset = PEER_DOWN_AF_ACTIVATE; | |
1913 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
1914 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
1915 | } | |
9bf904cc DS |
1916 | /* |
1917 | * If we are turning on a AFI/SAFI locally and we've | |
1918 | * started bringing a peer up, we need to tell | |
1919 | * the other peer to restart because we might loose | |
1920 | * configuration here because when the doppelganger | |
1921 | * gets to a established state due to how | |
1922 | * we resolve we could just overwrite the afi/safi | |
1923 | * activation. | |
1924 | */ | |
1925 | other = peer->doppelganger; | |
1926 | if (other | |
1927 | && (other->status == OpenSent | |
1928 | || other->status == OpenConfirm)) { | |
1929 | other->last_reset = PEER_DOWN_AF_ACTIVATE; | |
1930 | bgp_notify_send(other, BGP_NOTIFY_CEASE, | |
1931 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
1932 | } | |
d62a17ae | 1933 | } |
04b6bdc0 | 1934 | |
d62a17ae | 1935 | return 0; |
1936 | } | |
9e08021c | 1937 | |
d62a17ae | 1938 | /* Activate the peer or peer group for specified AFI and SAFI. */ |
1939 | int peer_activate(struct peer *peer, afi_t afi, safi_t safi) | |
1940 | { | |
1941 | int ret = 0; | |
1942 | struct peer_group *group; | |
1943 | struct listnode *node, *nnode; | |
1944 | struct peer *tmp_peer; | |
318cac96 | 1945 | struct bgp *bgp; |
d62a17ae | 1946 | |
1947 | /* Nothing to do if we've already activated this peer */ | |
1948 | if (peer->afc[afi][safi]) | |
1949 | return ret; | |
1950 | ||
318cac96 DW |
1951 | bgp = peer->bgp; |
1952 | ||
d62a17ae | 1953 | /* This is a peer-group so activate all of the members of the |
1954 | * peer-group as well */ | |
1955 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
1956 | ||
1957 | /* Do not activate a peer for both SAFI_UNICAST and | |
1958 | * SAFI_LABELED_UNICAST */ | |
1959 | if ((safi == SAFI_UNICAST | |
1960 | && peer->afc[afi][SAFI_LABELED_UNICAST]) | |
1961 | || (safi == SAFI_LABELED_UNICAST | |
1962 | && peer->afc[afi][SAFI_UNICAST])) | |
1963 | return BGP_ERR_PEER_SAFI_CONFLICT; | |
1964 | ||
1965 | peer->afc[afi][safi] = 1; | |
1966 | group = peer->group; | |
1967 | ||
1968 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, tmp_peer)) { | |
9790f44f | 1969 | ret |= peer_activate_af(tmp_peer, afi, safi); |
d62a17ae | 1970 | } |
1971 | } else { | |
9790f44f | 1972 | ret |= peer_activate_af(peer, afi, safi); |
d62a17ae | 1973 | } |
718e3744 | 1974 | |
a4d82a8a PZ |
1975 | /* If this is the first peer to be activated for this |
1976 | * afi/labeled-unicast recalc bestpaths to trigger label allocation */ | |
1977 | if (safi == SAFI_LABELED_UNICAST | |
1978 | && !bgp->allocate_mpls_labels[afi][SAFI_UNICAST]) { | |
318cac96 DW |
1979 | |
1980 | if (BGP_DEBUG(zebra, ZEBRA)) | |
4cb5e18b | 1981 | zlog_debug( |
a4d82a8a | 1982 | "peer(s) are now active for labeled-unicast, allocate MPLS labels"); |
318cac96 DW |
1983 | |
1984 | bgp->allocate_mpls_labels[afi][SAFI_UNICAST] = 1; | |
1985 | bgp_recalculate_afi_safi_bestpaths(bgp, afi, SAFI_UNICAST); | |
1986 | } | |
1987 | ||
b98f7728 PG |
1988 | if (safi == SAFI_FLOWSPEC) { |
1989 | /* connect to table manager */ | |
6818e7e5 | 1990 | bgp_zebra_init_tm_connect(bgp); |
b98f7728 | 1991 | } |
d62a17ae | 1992 | return ret; |
718e3744 | 1993 | } |
6b0655a2 | 1994 | |
d62a17ae | 1995 | static int non_peergroup_deactivate_af(struct peer *peer, afi_t afi, |
1996 | safi_t safi) | |
718e3744 | 1997 | { |
d62a17ae | 1998 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
e50f7cfd | 1999 | flog_err(EC_BGP_PEER_GROUP, "%s was called for peer-group %s", |
1c50c1c0 | 2000 | __func__, peer->host); |
d62a17ae | 2001 | return 1; |
2002 | } | |
718e3744 | 2003 | |
d62a17ae | 2004 | /* Nothing to do if we've already deactivated this peer */ |
2005 | if (!peer->afc[afi][safi]) | |
2006 | return 0; | |
718e3744 | 2007 | |
d62a17ae | 2008 | /* De-activate the address family configuration. */ |
2009 | peer->afc[afi][safi] = 0; | |
718e3744 | 2010 | |
d62a17ae | 2011 | if (peer_af_delete(peer, afi, safi) != 0) { |
e50f7cfd | 2012 | flog_err(EC_BGP_PEER_DELETE, |
1c50c1c0 QY |
2013 | "couldn't delete af structure for peer %s", |
2014 | peer->host); | |
d62a17ae | 2015 | return 1; |
2016 | } | |
718e3744 | 2017 | |
d62a17ae | 2018 | if (peer->status == Established) { |
2019 | if (CHECK_FLAG(peer->cap, PEER_CAP_DYNAMIC_RCV)) { | |
2020 | peer->afc_adv[afi][safi] = 0; | |
2021 | peer->afc_nego[afi][safi] = 0; | |
2022 | ||
2023 | if (peer_active_nego(peer)) { | |
2024 | bgp_capability_send(peer, afi, safi, | |
2025 | CAPABILITY_CODE_MP, | |
2026 | CAPABILITY_ACTION_UNSET); | |
2027 | bgp_clear_route(peer, afi, safi); | |
2028 | peer->pcount[afi][safi] = 0; | |
2029 | } else { | |
2030 | peer->last_reset = PEER_DOWN_NEIGHBOR_DELETE; | |
2031 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
2032 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
2033 | } | |
2034 | } else { | |
2035 | peer->last_reset = PEER_DOWN_NEIGHBOR_DELETE; | |
2036 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
2037 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
2038 | } | |
2039 | } | |
718e3744 | 2040 | |
d62a17ae | 2041 | return 0; |
2042 | } | |
718e3744 | 2043 | |
d62a17ae | 2044 | int peer_deactivate(struct peer *peer, afi_t afi, safi_t safi) |
718e3744 | 2045 | { |
d62a17ae | 2046 | int ret = 0; |
2047 | struct peer_group *group; | |
2048 | struct peer *tmp_peer; | |
2049 | struct listnode *node, *nnode; | |
318cac96 | 2050 | struct bgp *bgp; |
718e3744 | 2051 | |
d62a17ae | 2052 | /* Nothing to do if we've already de-activated this peer */ |
2053 | if (!peer->afc[afi][safi]) | |
2054 | return ret; | |
718e3744 | 2055 | |
d62a17ae | 2056 | /* This is a peer-group so de-activate all of the members of the |
2057 | * peer-group as well */ | |
2058 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
2059 | peer->afc[afi][safi] = 0; | |
2060 | group = peer->group; | |
718e3744 | 2061 | |
d62a17ae | 2062 | if (peer_af_delete(peer, afi, safi) != 0) { |
e50f7cfd | 2063 | flog_err(EC_BGP_PEER_DELETE, |
1c50c1c0 QY |
2064 | "couldn't delete af structure for peer %s", |
2065 | peer->host); | |
d62a17ae | 2066 | } |
0299c004 | 2067 | |
d62a17ae | 2068 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, tmp_peer)) { |
2069 | ret |= non_peergroup_deactivate_af(tmp_peer, afi, safi); | |
2070 | } | |
2071 | } else { | |
2072 | ret |= non_peergroup_deactivate_af(peer, afi, safi); | |
2073 | } | |
718e3744 | 2074 | |
318cac96 DW |
2075 | bgp = peer->bgp; |
2076 | ||
a4d82a8a PZ |
2077 | /* If this is the last peer to be deactivated for this |
2078 | * afi/labeled-unicast recalc bestpaths to trigger label deallocation */ | |
2079 | if (safi == SAFI_LABELED_UNICAST | |
2080 | && bgp->allocate_mpls_labels[afi][SAFI_UNICAST] | |
2081 | && !bgp_afi_safi_peer_exists(bgp, afi, safi)) { | |
318cac96 DW |
2082 | |
2083 | if (BGP_DEBUG(zebra, ZEBRA)) | |
4cb5e18b | 2084 | zlog_debug( |
a4d82a8a | 2085 | "peer(s) are no longer active for labeled-unicast, deallocate MPLS labels"); |
318cac96 DW |
2086 | |
2087 | bgp->allocate_mpls_labels[afi][SAFI_UNICAST] = 0; | |
2088 | bgp_recalculate_afi_safi_bestpaths(bgp, afi, SAFI_UNICAST); | |
2089 | } | |
d62a17ae | 2090 | return ret; |
2091 | } | |
718e3744 | 2092 | |
d62a17ae | 2093 | int peer_afc_set(struct peer *peer, afi_t afi, safi_t safi, int enable) |
2094 | { | |
2095 | if (enable) | |
2096 | return peer_activate(peer, afi, safi); | |
2097 | else | |
2098 | return peer_deactivate(peer, afi, safi); | |
718e3744 | 2099 | } |
2100 | ||
d62a17ae | 2101 | static void peer_nsf_stop(struct peer *peer) |
718e3744 | 2102 | { |
d62a17ae | 2103 | afi_t afi; |
2104 | safi_t safi; | |
718e3744 | 2105 | |
d62a17ae | 2106 | UNSET_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT); |
2107 | UNSET_FLAG(peer->sflags, PEER_STATUS_NSF_MODE); | |
718e3744 | 2108 | |
d62a17ae | 2109 | for (afi = AFI_IP; afi < AFI_MAX; afi++) |
a08ca0a7 | 2110 | for (safi = SAFI_UNICAST; safi <= SAFI_MPLS_VPN; safi++) |
d62a17ae | 2111 | peer->nsf[afi][safi] = 0; |
2112 | ||
2113 | if (peer->t_gr_restart) { | |
2114 | BGP_TIMER_OFF(peer->t_gr_restart); | |
2115 | if (bgp_debug_neighbor_events(peer)) | |
2116 | zlog_debug("%s graceful restart timer stopped", | |
2117 | peer->host); | |
1ff9a340 | 2118 | } |
d62a17ae | 2119 | if (peer->t_gr_stale) { |
2120 | BGP_TIMER_OFF(peer->t_gr_stale); | |
2121 | if (bgp_debug_neighbor_events(peer)) | |
2122 | zlog_debug( | |
2123 | "%s graceful restart stalepath timer stopped", | |
2124 | peer->host); | |
2125 | } | |
2126 | bgp_clear_route_all(peer); | |
2127 | } | |
718e3744 | 2128 | |
d62a17ae | 2129 | /* Delete peer from confguration. |
2130 | * | |
2131 | * The peer is moved to a dead-end "Deleted" neighbour-state, to allow | |
2132 | * it to "cool off" and refcounts to hit 0, at which state it is freed. | |
2133 | * | |
2134 | * This function /should/ take care to be idempotent, to guard against | |
2135 | * it being called multiple times through stray events that come in | |
2136 | * that happen to result in this function being called again. That | |
2137 | * said, getting here for a "Deleted" peer is a bug in the neighbour | |
2138 | * FSM. | |
2139 | */ | |
2140 | int peer_delete(struct peer *peer) | |
2141 | { | |
2142 | int i; | |
2143 | afi_t afi; | |
2144 | safi_t safi; | |
2145 | struct bgp *bgp; | |
2146 | struct bgp_filter *filter; | |
2147 | struct listnode *pn; | |
2148 | int accept_peer; | |
f14e6fdb | 2149 | |
d62a17ae | 2150 | assert(peer->status != Deleted); |
718e3744 | 2151 | |
d62a17ae | 2152 | bgp = peer->bgp; |
2153 | accept_peer = CHECK_FLAG(peer->sflags, PEER_STATUS_ACCEPT_PEER); | |
080b97f2 | 2154 | |
0a6469e5 | 2155 | bgp_keepalives_off(peer); |
424ab01d QY |
2156 | bgp_reads_off(peer); |
2157 | bgp_writes_off(peer); | |
2158 | assert(!CHECK_FLAG(peer->thread_flags, PEER_THREAD_WRITES_ON)); | |
2159 | assert(!CHECK_FLAG(peer->thread_flags, PEER_THREAD_READS_ON)); | |
0a6469e5 | 2160 | assert(!CHECK_FLAG(peer->thread_flags, PEER_THREAD_KEEPALIVES_ON)); |
424ab01d | 2161 | |
d62a17ae | 2162 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT)) |
2163 | peer_nsf_stop(peer); | |
718e3744 | 2164 | |
d62a17ae | 2165 | SET_FLAG(peer->flags, PEER_FLAG_DELETE); |
718e3744 | 2166 | |
e8ba5293 PG |
2167 | bgp_bfd_deregister_peer(peer); |
2168 | ||
d62a17ae | 2169 | /* If this peer belongs to peer group, clear up the |
2170 | relationship. */ | |
2171 | if (peer->group) { | |
2172 | if (peer_dynamic_neighbor(peer)) | |
2173 | peer_drop_dynamic_neighbor(peer); | |
718e3744 | 2174 | |
d62a17ae | 2175 | if ((pn = listnode_lookup(peer->group->peer, peer))) { |
2176 | peer = peer_unlock( | |
2177 | peer); /* group->peer list reference */ | |
2178 | list_delete_node(peer->group->peer, pn); | |
2179 | } | |
2180 | peer->group = NULL; | |
2181 | } | |
718e3744 | 2182 | |
d62a17ae | 2183 | /* Withdraw all information from routing table. We can not use |
2184 | * BGP_EVENT_ADD (peer, BGP_Stop) at here. Because the event is | |
2185 | * executed after peer structure is deleted. | |
2186 | */ | |
2187 | peer->last_reset = PEER_DOWN_NEIGHBOR_DELETE; | |
2188 | bgp_stop(peer); | |
2189 | UNSET_FLAG(peer->flags, PEER_FLAG_DELETE); | |
2190 | ||
2191 | if (peer->doppelganger) { | |
2192 | peer->doppelganger->doppelganger = NULL; | |
2193 | peer->doppelganger = NULL; | |
2194 | } | |
718e3744 | 2195 | |
d62a17ae | 2196 | UNSET_FLAG(peer->sflags, PEER_STATUS_ACCEPT_PEER); |
2197 | bgp_fsm_change_status(peer, Deleted); | |
718e3744 | 2198 | |
d62a17ae | 2199 | /* Remove from NHT */ |
2200 | if (CHECK_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE)) | |
2201 | bgp_unlink_nexthop_by_peer(peer); | |
1ff9a340 | 2202 | |
d62a17ae | 2203 | /* Password configuration */ |
a14810f4 | 2204 | if (CHECK_FLAG(peer->flags, PEER_FLAG_PASSWORD)) { |
d62a17ae | 2205 | XFREE(MTYPE_PEER_PASSWORD, peer->password); |
1ff9a340 | 2206 | |
d62a17ae | 2207 | if (!accept_peer && !BGP_PEER_SU_UNSPEC(peer) |
2208 | && !CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
2209 | bgp_md5_unset(peer); | |
1ff9a340 | 2210 | } |
718e3744 | 2211 | |
d62a17ae | 2212 | bgp_timer_set(peer); /* stops all timers for Deleted */ |
718e3744 | 2213 | |
d62a17ae | 2214 | /* Delete from all peer list. */ |
2215 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP) | |
2216 | && (pn = listnode_lookup(bgp->peer, peer))) { | |
2217 | peer_unlock(peer); /* bgp peer list reference */ | |
2218 | list_delete_node(bgp->peer, pn); | |
2219 | hash_release(bgp->peerhash, peer); | |
2220 | } | |
718e3744 | 2221 | |
d62a17ae | 2222 | /* Buffers. */ |
2223 | if (peer->ibuf) { | |
424ab01d | 2224 | stream_fifo_free(peer->ibuf); |
d62a17ae | 2225 | peer->ibuf = NULL; |
2226 | } | |
f14e6fdb | 2227 | |
d62a17ae | 2228 | if (peer->obuf) { |
2229 | stream_fifo_free(peer->obuf); | |
2230 | peer->obuf = NULL; | |
2231 | } | |
f14e6fdb | 2232 | |
424ab01d | 2233 | if (peer->ibuf_work) { |
74ffbfe6 | 2234 | ringbuf_del(peer->ibuf_work); |
424ab01d QY |
2235 | peer->ibuf_work = NULL; |
2236 | } | |
2237 | ||
2238 | if (peer->obuf_work) { | |
2239 | stream_free(peer->obuf_work); | |
2240 | peer->obuf_work = NULL; | |
d62a17ae | 2241 | } |
f14e6fdb | 2242 | |
d62a17ae | 2243 | if (peer->scratch) { |
2244 | stream_free(peer->scratch); | |
2245 | peer->scratch = NULL; | |
2246 | } | |
f14e6fdb | 2247 | |
d62a17ae | 2248 | /* Local and remote addresses. */ |
2249 | if (peer->su_local) { | |
2250 | sockunion_free(peer->su_local); | |
2251 | peer->su_local = NULL; | |
2252 | } | |
f14e6fdb | 2253 | |
d62a17ae | 2254 | if (peer->su_remote) { |
2255 | sockunion_free(peer->su_remote); | |
2256 | peer->su_remote = NULL; | |
2257 | } | |
f14e6fdb | 2258 | |
d62a17ae | 2259 | /* Free filter related memory. */ |
05c7a1cc QY |
2260 | FOREACH_AFI_SAFI (afi, safi) { |
2261 | filter = &peer->filter[afi][safi]; | |
d62a17ae | 2262 | |
05c7a1cc QY |
2263 | for (i = FILTER_IN; i < FILTER_MAX; i++) { |
2264 | if (filter->dlist[i].name) { | |
2265 | XFREE(MTYPE_BGP_FILTER_NAME, | |
2266 | filter->dlist[i].name); | |
2267 | filter->dlist[i].name = NULL; | |
d62a17ae | 2268 | } |
2269 | ||
05c7a1cc QY |
2270 | if (filter->plist[i].name) { |
2271 | XFREE(MTYPE_BGP_FILTER_NAME, | |
2272 | filter->plist[i].name); | |
2273 | filter->plist[i].name = NULL; | |
d62a17ae | 2274 | } |
2275 | ||
05c7a1cc | 2276 | if (filter->aslist[i].name) { |
d62a17ae | 2277 | XFREE(MTYPE_BGP_FILTER_NAME, |
05c7a1cc QY |
2278 | filter->aslist[i].name); |
2279 | filter->aslist[i].name = NULL; | |
d62a17ae | 2280 | } |
05c7a1cc | 2281 | } |
d62a17ae | 2282 | |
05c7a1cc QY |
2283 | for (i = RMAP_IN; i < RMAP_MAX; i++) { |
2284 | if (filter->map[i].name) { | |
2285 | XFREE(MTYPE_BGP_FILTER_NAME, | |
2286 | filter->map[i].name); | |
2287 | filter->map[i].name = NULL; | |
d62a17ae | 2288 | } |
2289 | } | |
f14e6fdb | 2290 | |
05c7a1cc QY |
2291 | if (filter->usmap.name) { |
2292 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
2293 | filter->usmap.name = NULL; | |
2294 | } | |
2295 | ||
2296 | if (peer->default_rmap[afi][safi].name) { | |
2297 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
2298 | peer->default_rmap[afi][safi].name); | |
2299 | peer->default_rmap[afi][safi].name = NULL; | |
2300 | } | |
2301 | } | |
2302 | ||
a2addae8 RW |
2303 | FOREACH_AFI_SAFI (afi, safi) |
2304 | peer_af_delete(peer, afi, safi); | |
f14e6fdb | 2305 | |
d62a17ae | 2306 | if (peer->hostname) { |
2307 | XFREE(MTYPE_BGP_PEER_HOST, peer->hostname); | |
2308 | peer->hostname = NULL; | |
2309 | } | |
f14e6fdb | 2310 | |
d62a17ae | 2311 | if (peer->domainname) { |
2312 | XFREE(MTYPE_BGP_PEER_HOST, peer->domainname); | |
2313 | peer->domainname = NULL; | |
2314 | } | |
f14e6fdb | 2315 | |
d62a17ae | 2316 | peer_unlock(peer); /* initial reference */ |
f14e6fdb | 2317 | |
d62a17ae | 2318 | return 0; |
fe7d2a48 DS |
2319 | } |
2320 | ||
d62a17ae | 2321 | static int peer_group_cmp(struct peer_group *g1, struct peer_group *g2) |
2322 | { | |
2323 | return strcmp(g1->name, g2->name); | |
6aeb9e78 DS |
2324 | } |
2325 | ||
d62a17ae | 2326 | /* Peer group cofiguration. */ |
2327 | static struct peer_group *peer_group_new(void) | |
718e3744 | 2328 | { |
9f5dc319 | 2329 | return XCALLOC(MTYPE_PEER_GROUP, sizeof(struct peer_group)); |
718e3744 | 2330 | } |
2331 | ||
d62a17ae | 2332 | static void peer_group_free(struct peer_group *group) |
718e3744 | 2333 | { |
d62a17ae | 2334 | XFREE(MTYPE_PEER_GROUP, group); |
718e3744 | 2335 | } |
2336 | ||
d62a17ae | 2337 | struct peer_group *peer_group_lookup(struct bgp *bgp, const char *name) |
718e3744 | 2338 | { |
d62a17ae | 2339 | struct peer_group *group; |
2340 | struct listnode *node, *nnode; | |
2341 | ||
2342 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
2343 | if (strcmp(group->name, name) == 0) | |
2344 | return group; | |
2345 | } | |
2346 | return NULL; | |
2347 | } | |
2348 | ||
2349 | struct peer_group *peer_group_get(struct bgp *bgp, const char *name) | |
2350 | { | |
2351 | struct peer_group *group; | |
2352 | afi_t afi; | |
2353 | ||
2354 | group = peer_group_lookup(bgp, name); | |
2355 | if (group) | |
2356 | return group; | |
2357 | ||
2358 | group = peer_group_new(); | |
2359 | group->bgp = bgp; | |
0a22ddfb | 2360 | XFREE(MTYPE_PEER_GROUP_HOST, group->name); |
d62a17ae | 2361 | group->name = XSTRDUP(MTYPE_PEER_GROUP_HOST, name); |
2362 | group->peer = list_new(); | |
2363 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
2364 | group->listen_range[afi] = list_new(); | |
2365 | group->conf = peer_new(bgp); | |
2366 | if (!bgp_flag_check(bgp, BGP_FLAG_NO_DEFAULT_IPV4)) | |
2367 | group->conf->afc[AFI_IP][SAFI_UNICAST] = 1; | |
0a22ddfb | 2368 | XFREE(MTYPE_BGP_PEER_HOST, group->conf->host); |
d62a17ae | 2369 | group->conf->host = XSTRDUP(MTYPE_BGP_PEER_HOST, name); |
2370 | group->conf->group = group; | |
2371 | group->conf->as = 0; | |
a0903cd2 | 2372 | group->conf->ttl = BGP_DEFAULT_TTL; |
d62a17ae | 2373 | group->conf->gtsm_hops = 0; |
2374 | group->conf->v_routeadv = BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 2375 | SET_FLAG(group->conf->sflags, PEER_STATUS_GROUP); |
2376 | listnode_add_sort(bgp->group, group); | |
718e3744 | 2377 | |
d62a17ae | 2378 | return group; |
718e3744 | 2379 | } |
2380 | ||
d62a17ae | 2381 | static void peer_group2peer_config_copy(struct peer_group *group, |
2382 | struct peer *peer) | |
ad4cbda1 | 2383 | { |
4c391142 | 2384 | uint32_t flags_tmp; |
d62a17ae | 2385 | struct peer *conf; |
ad4cbda1 | 2386 | |
d62a17ae | 2387 | conf = group->conf; |
ad4cbda1 | 2388 | |
d62a17ae | 2389 | /* remote-as */ |
2390 | if (conf->as) | |
2391 | peer->as = conf->as; | |
718e3744 | 2392 | |
a14810f4 PM |
2393 | /* local-as */ |
2394 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_LOCAL_AS)) | |
d62a17ae | 2395 | peer->change_local_as = conf->change_local_as; |
1758dbaa | 2396 | |
a0903cd2 DA |
2397 | /* If peer-group has configured TTL then override it */ |
2398 | if (conf->ttl != BGP_DEFAULT_TTL) | |
2399 | peer->ttl = conf->ttl; | |
518f0eb1 | 2400 | |
d62a17ae | 2401 | /* GTSM hops */ |
2402 | peer->gtsm_hops = conf->gtsm_hops; | |
ad12dde6 | 2403 | |
4c391142 PM |
2404 | /* peer flags apply */ |
2405 | flags_tmp = conf->flags & ~peer->flags_override; | |
2406 | flags_tmp ^= conf->flags_invert ^ peer->flags_invert; | |
2407 | flags_tmp &= ~peer->flags_override; | |
2408 | ||
2409 | UNSET_FLAG(peer->flags, ~peer->flags_override); | |
2410 | SET_FLAG(peer->flags, flags_tmp); | |
2411 | SET_FLAG(peer->flags_invert, conf->flags_invert); | |
ad4cbda1 | 2412 | |
d62a17ae | 2413 | /* peer timers apply */ |
b90a8e13 PM |
2414 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_TIMER)) { |
2415 | PEER_ATTR_INHERIT(peer, group, holdtime); | |
2416 | PEER_ATTR_INHERIT(peer, group, keepalive); | |
2417 | } | |
6aeb9e78 | 2418 | |
b90a8e13 PM |
2419 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_TIMER_CONNECT)) { |
2420 | PEER_ATTR_INHERIT(peer, group, connect); | |
2421 | if (CHECK_FLAG(conf->flags, PEER_FLAG_TIMER_CONNECT)) | |
2422 | peer->v_connect = conf->connect; | |
2423 | else | |
5d5393b9 | 2424 | peer->v_connect = peer->bgp->default_connect_retry; |
b90a8e13 PM |
2425 | } |
2426 | ||
2427 | /* advertisement-interval apply */ | |
2428 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_ROUTEADV)) { | |
2429 | PEER_ATTR_INHERIT(peer, group, routeadv); | |
2430 | if (CHECK_FLAG(conf->flags, PEER_FLAG_ROUTEADV)) | |
2431 | peer->v_routeadv = conf->routeadv; | |
2432 | else | |
2433 | peer->v_routeadv = (peer_sort(peer) == BGP_PEER_IBGP) | |
2434 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
2435 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
2436 | } | |
718e3744 | 2437 | |
d62a17ae | 2438 | /* password apply */ |
a14810f4 PM |
2439 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_PASSWORD)) |
2440 | PEER_STR_ATTR_INHERIT(peer, group, password, | |
2441 | MTYPE_PEER_PASSWORD); | |
718e3744 | 2442 | |
d62a17ae | 2443 | if (!BGP_PEER_SU_UNSPEC(peer)) |
2444 | bgp_md5_set(peer); | |
d4a7a753 | 2445 | |
d62a17ae | 2446 | /* update-source apply */ |
a14810f4 PM |
2447 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_UPDATE_SOURCE)) { |
2448 | if (conf->update_source) { | |
d62a17ae | 2449 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); |
a14810f4 PM |
2450 | PEER_SU_ATTR_INHERIT(peer, group, update_source); |
2451 | } else if (conf->update_if) { | |
d62a17ae | 2452 | sockunion_free(peer->update_source); |
a14810f4 PM |
2453 | PEER_STR_ATTR_INHERIT(peer, group, update_if, |
2454 | MTYPE_PEER_UPDATE_SOURCE); | |
d62a17ae | 2455 | } |
d62a17ae | 2456 | } |
cd92e548 | 2457 | |
d62a17ae | 2458 | bgp_bfd_peer_group2peer_copy(conf, peer); |
ad4cbda1 | 2459 | } |
718e3744 | 2460 | |
d62a17ae | 2461 | /* Peer group's remote AS configuration. */ |
2462 | int peer_group_remote_as(struct bgp *bgp, const char *group_name, as_t *as, | |
2463 | int as_type) | |
f14e6fdb | 2464 | { |
d62a17ae | 2465 | struct peer_group *group; |
2466 | struct peer *peer; | |
2467 | struct listnode *node, *nnode; | |
f14e6fdb | 2468 | |
d62a17ae | 2469 | group = peer_group_lookup(bgp, group_name); |
2470 | if (!group) | |
2471 | return -1; | |
f14e6fdb | 2472 | |
d62a17ae | 2473 | if ((as_type == group->conf->as_type) && (group->conf->as == *as)) |
2474 | return 0; | |
f14e6fdb | 2475 | |
f14e6fdb | 2476 | |
d62a17ae | 2477 | /* When we setup peer-group AS number all peer group member's AS |
2478 | number must be updated to same number. */ | |
2479 | peer_as_change(group->conf, *as, as_type); | |
f14e6fdb | 2480 | |
d62a17ae | 2481 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { |
2482 | if (((peer->as_type == AS_SPECIFIED) && peer->as != *as) | |
2483 | || (peer->as_type != as_type)) | |
2484 | peer_as_change(peer, *as, as_type); | |
2485 | } | |
f14e6fdb | 2486 | |
d62a17ae | 2487 | return 0; |
f14e6fdb DS |
2488 | } |
2489 | ||
4e2786df DA |
2490 | int peer_notify_unconfig(struct peer *peer) |
2491 | { | |
2492 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
2493 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
2494 | BGP_NOTIFY_CEASE_PEER_UNCONFIG); | |
2495 | return 0; | |
2496 | } | |
2497 | ||
2498 | int peer_group_notify_unconfig(struct peer_group *group) | |
2499 | { | |
2500 | struct peer *peer, *other; | |
2501 | struct listnode *node, *nnode; | |
2502 | ||
2503 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
2504 | other = peer->doppelganger; | |
2505 | if (other && other->status != Deleted) { | |
2506 | other->group = NULL; | |
2507 | peer_notify_unconfig(other); | |
2508 | } else | |
2509 | peer_notify_unconfig(peer); | |
2510 | } | |
2511 | return 0; | |
2512 | } | |
2513 | ||
d62a17ae | 2514 | int peer_group_delete(struct peer_group *group) |
f14e6fdb | 2515 | { |
d62a17ae | 2516 | struct bgp *bgp; |
2517 | struct peer *peer; | |
2518 | struct prefix *prefix; | |
2519 | struct peer *other; | |
2520 | struct listnode *node, *nnode; | |
2521 | afi_t afi; | |
f14e6fdb | 2522 | |
d62a17ae | 2523 | bgp = group->bgp; |
f14e6fdb | 2524 | |
d62a17ae | 2525 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { |
2526 | other = peer->doppelganger; | |
2527 | peer_delete(peer); | |
2528 | if (other && other->status != Deleted) { | |
2529 | other->group = NULL; | |
2530 | peer_delete(other); | |
2531 | } | |
2532 | } | |
6a154c88 | 2533 | list_delete(&group->peer); |
f14e6fdb | 2534 | |
d62a17ae | 2535 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
2536 | for (ALL_LIST_ELEMENTS(group->listen_range[afi], node, nnode, | |
2537 | prefix)) { | |
63265b5c | 2538 | prefix_free(&prefix); |
d62a17ae | 2539 | } |
6a154c88 | 2540 | list_delete(&group->listen_range[afi]); |
d62a17ae | 2541 | } |
f14e6fdb | 2542 | |
d62a17ae | 2543 | XFREE(MTYPE_PEER_GROUP_HOST, group->name); |
2544 | group->name = NULL; | |
0299c004 | 2545 | |
d62a17ae | 2546 | bfd_info_free(&(group->conf->bfd_info)); |
f14e6fdb | 2547 | |
d62a17ae | 2548 | group->conf->group = NULL; |
2549 | peer_delete(group->conf); | |
f14e6fdb | 2550 | |
d62a17ae | 2551 | /* Delete from all peer_group list. */ |
2552 | listnode_delete(bgp->group, group); | |
f14e6fdb | 2553 | |
d62a17ae | 2554 | peer_group_free(group); |
f14e6fdb | 2555 | |
d62a17ae | 2556 | return 0; |
2557 | } | |
f14e6fdb | 2558 | |
d62a17ae | 2559 | int peer_group_remote_as_delete(struct peer_group *group) |
2560 | { | |
2561 | struct peer *peer, *other; | |
2562 | struct listnode *node, *nnode; | |
f14e6fdb | 2563 | |
d62a17ae | 2564 | if ((group->conf->as_type == AS_UNSPECIFIED) |
2565 | || ((!group->conf->as) && (group->conf->as_type == AS_SPECIFIED))) | |
2566 | return 0; | |
f14e6fdb | 2567 | |
d62a17ae | 2568 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { |
2569 | other = peer->doppelganger; | |
f14e6fdb | 2570 | |
d62a17ae | 2571 | peer_delete(peer); |
f14e6fdb | 2572 | |
d62a17ae | 2573 | if (other && other->status != Deleted) { |
2574 | other->group = NULL; | |
2575 | peer_delete(other); | |
2576 | } | |
2577 | } | |
2578 | list_delete_all_node(group->peer); | |
f14e6fdb | 2579 | |
d62a17ae | 2580 | group->conf->as = 0; |
2581 | group->conf->as_type = AS_UNSPECIFIED; | |
f14e6fdb | 2582 | |
d62a17ae | 2583 | return 0; |
f14e6fdb | 2584 | } |
d62a17ae | 2585 | |
2586 | int peer_group_listen_range_add(struct peer_group *group, struct prefix *range) | |
f14e6fdb | 2587 | { |
d62a17ae | 2588 | struct prefix *prefix; |
2589 | struct listnode *node, *nnode; | |
2590 | afi_t afi; | |
f14e6fdb | 2591 | |
d62a17ae | 2592 | afi = family2afi(range->family); |
f14e6fdb | 2593 | |
d62a17ae | 2594 | /* Group needs remote AS configured. */ |
2595 | if (group->conf->as_type == AS_UNSPECIFIED) | |
2596 | return BGP_ERR_PEER_GROUP_NO_REMOTE_AS; | |
718e3744 | 2597 | |
d62a17ae | 2598 | /* Ensure no duplicates. Currently we don't care about overlaps. */ |
2599 | for (ALL_LIST_ELEMENTS(group->listen_range[afi], node, nnode, prefix)) { | |
2600 | if (prefix_same(range, prefix)) | |
2601 | return 0; | |
2602 | } | |
2603 | ||
2604 | prefix = prefix_new(); | |
2605 | prefix_copy(prefix, range); | |
2606 | listnode_add(group->listen_range[afi], prefix); | |
9e7d9a61 QY |
2607 | |
2608 | /* Update passwords for new ranges */ | |
2609 | if (group->conf->password) | |
2610 | bgp_md5_set_prefix(prefix, group->conf->password); | |
2611 | ||
d62a17ae | 2612 | return 0; |
718e3744 | 2613 | } |
6b0655a2 | 2614 | |
d62a17ae | 2615 | int peer_group_listen_range_del(struct peer_group *group, struct prefix *range) |
718e3744 | 2616 | { |
d62a17ae | 2617 | struct prefix *prefix, prefix2; |
2618 | struct listnode *node, *nnode; | |
2619 | struct peer *peer; | |
2620 | afi_t afi; | |
2621 | char buf[PREFIX2STR_BUFFER]; | |
718e3744 | 2622 | |
d62a17ae | 2623 | afi = family2afi(range->family); |
1ff9a340 | 2624 | |
d62a17ae | 2625 | /* Identify the listen range. */ |
2626 | for (ALL_LIST_ELEMENTS(group->listen_range[afi], node, nnode, prefix)) { | |
2627 | if (prefix_same(range, prefix)) | |
2628 | break; | |
1ff9a340 | 2629 | } |
718e3744 | 2630 | |
d62a17ae | 2631 | if (!prefix) |
2632 | return BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_NOT_FOUND; | |
2633 | ||
2634 | prefix2str(prefix, buf, sizeof(buf)); | |
2635 | ||
2636 | /* Dispose off any dynamic neighbors that exist due to this listen range | |
2637 | */ | |
2638 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
2639 | if (!peer_dynamic_neighbor(peer)) | |
2640 | continue; | |
2641 | ||
2642 | sockunion2hostprefix(&peer->su, &prefix2); | |
2643 | if (prefix_match(prefix, &prefix2)) { | |
2644 | if (bgp_debug_neighbor_events(peer)) | |
2645 | zlog_debug( | |
2646 | "Deleting dynamic neighbor %s group %s upon " | |
2647 | "delete of listen range %s", | |
2648 | peer->host, group->name, buf); | |
2649 | peer_delete(peer); | |
2650 | } | |
2651 | } | |
718e3744 | 2652 | |
d62a17ae | 2653 | /* Get rid of the listen range */ |
2654 | listnode_delete(group->listen_range[afi], prefix); | |
718e3744 | 2655 | |
9e7d9a61 QY |
2656 | /* Remove passwords for deleted ranges */ |
2657 | if (group->conf->password) | |
2658 | bgp_md5_unset_prefix(prefix); | |
2659 | ||
d62a17ae | 2660 | return 0; |
2661 | } | |
e0701b79 | 2662 | |
d62a17ae | 2663 | /* Bind specified peer to peer group. */ |
2664 | int peer_group_bind(struct bgp *bgp, union sockunion *su, struct peer *peer, | |
2665 | struct peer_group *group, as_t *as) | |
2666 | { | |
2667 | int first_member = 0; | |
2668 | afi_t afi; | |
2669 | safi_t safi; | |
d62a17ae | 2670 | |
2671 | /* Lookup the peer. */ | |
2672 | if (!peer) | |
2673 | peer = peer_lookup(bgp, su); | |
2674 | ||
2675 | /* The peer exist, bind it to the peer-group */ | |
2676 | if (peer) { | |
ed9fb826 | 2677 | /* When the peer already belongs to a peer-group, check the |
d62a17ae | 2678 | * consistency. */ |
ed9fb826 DW |
2679 | if (peer_group_active(peer)) { |
2680 | ||
2681 | /* The peer is already bound to the peer-group, | |
d8a079e8 DW |
2682 | * nothing to do |
2683 | */ | |
ed9fb826 DW |
2684 | if (strcmp(peer->group->name, group->name) == 0) |
2685 | return 0; | |
2686 | else | |
2687 | return BGP_ERR_PEER_GROUP_CANT_CHANGE; | |
2688 | } | |
d62a17ae | 2689 | |
2690 | /* The peer has not specified a remote-as, inherit it from the | |
2691 | * peer-group */ | |
2692 | if (peer->as_type == AS_UNSPECIFIED) { | |
2693 | peer->as_type = group->conf->as_type; | |
2694 | peer->as = group->conf->as; | |
faa16034 | 2695 | peer->sort = group->conf->sort; |
d62a17ae | 2696 | } |
718e3744 | 2697 | |
390485fd | 2698 | if (!group->conf->as && peer_sort(peer)) { |
d62a17ae | 2699 | if (peer_sort(group->conf) != BGP_PEER_INTERNAL |
2700 | && peer_sort(group->conf) != peer_sort(peer)) { | |
2701 | if (as) | |
2702 | *as = peer->as; | |
2703 | return BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT; | |
2704 | } | |
718e3744 | 2705 | |
d62a17ae | 2706 | if (peer_sort(group->conf) == BGP_PEER_INTERNAL) |
2707 | first_member = 1; | |
2708 | } | |
718e3744 | 2709 | |
d62a17ae | 2710 | peer_group2peer_config_copy(group, peer); |
2711 | ||
05c7a1cc QY |
2712 | FOREACH_AFI_SAFI (afi, safi) { |
2713 | if (group->conf->afc[afi][safi]) { | |
2714 | peer->afc[afi][safi] = 1; | |
2715 | ||
2716 | if (peer_af_find(peer, afi, safi) | |
2717 | || peer_af_create(peer, afi, safi)) { | |
2718 | peer_group2peer_config_copy_af( | |
2719 | group, peer, afi, safi); | |
2720 | } | |
2721 | } else if (peer->afc[afi][safi]) | |
2722 | peer_deactivate(peer, afi, safi); | |
a4d82a8a | 2723 | } |
d62a17ae | 2724 | |
2725 | if (peer->group) { | |
2726 | assert(group && peer->group == group); | |
2727 | } else { | |
0866cdaf A |
2728 | listnode_delete(bgp->peer, peer); |
2729 | ||
d62a17ae | 2730 | peer->group = group; |
2731 | listnode_add_sort(bgp->peer, peer); | |
2732 | ||
2733 | peer = peer_lock(peer); /* group->peer list reference */ | |
2734 | listnode_add(group->peer, peer); | |
2735 | } | |
718e3744 | 2736 | |
d62a17ae | 2737 | if (first_member) { |
2738 | /* Advertisement-interval reset */ | |
b90a8e13 PM |
2739 | if (!CHECK_FLAG(group->conf->flags, |
2740 | PEER_FLAG_ROUTEADV)) { | |
2741 | group->conf->v_routeadv = | |
2742 | (peer_sort(group->conf) | |
2743 | == BGP_PEER_IBGP) | |
2744 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
2745 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 2746 | } |
2747 | ||
2748 | /* ebgp-multihop reset */ | |
2749 | if (peer_sort(group->conf) == BGP_PEER_IBGP) | |
2750 | group->conf->ttl = MAXTTL; | |
2751 | ||
2752 | /* local-as reset */ | |
2753 | if (peer_sort(group->conf) != BGP_PEER_EBGP) { | |
2754 | group->conf->change_local_as = 0; | |
a14810f4 PM |
2755 | peer_flag_unset(group->conf, |
2756 | PEER_FLAG_LOCAL_AS); | |
2757 | peer_flag_unset(group->conf, | |
2758 | PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
2759 | peer_flag_unset(group->conf, | |
2760 | PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
d62a17ae | 2761 | } |
2762 | } | |
718e3744 | 2763 | |
d62a17ae | 2764 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); |
718e3744 | 2765 | |
d62a17ae | 2766 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
2767 | peer->last_reset = PEER_DOWN_RMAP_BIND; | |
2768 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
2769 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
2770 | } else { | |
2771 | bgp_session_reset(peer); | |
2772 | } | |
2773 | } | |
718e3744 | 2774 | |
d62a17ae | 2775 | /* Create a new peer. */ |
2776 | else { | |
2777 | if ((group->conf->as_type == AS_SPECIFIED) | |
2778 | && (!group->conf->as)) { | |
2779 | return BGP_ERR_PEER_GROUP_NO_REMOTE_AS; | |
2780 | } | |
718e3744 | 2781 | |
d62a17ae | 2782 | peer = peer_create(su, NULL, bgp, bgp->as, group->conf->as, |
2783 | group->conf->as_type, 0, 0, group); | |
718e3744 | 2784 | |
d62a17ae | 2785 | peer = peer_lock(peer); /* group->peer list reference */ |
2786 | listnode_add(group->peer, peer); | |
718e3744 | 2787 | |
d62a17ae | 2788 | peer_group2peer_config_copy(group, peer); |
a4ed4829 | 2789 | |
d62a17ae | 2790 | /* If the peer-group is active for this afi/safi then activate |
2791 | * for this peer */ | |
05c7a1cc QY |
2792 | FOREACH_AFI_SAFI (afi, safi) { |
2793 | if (group->conf->afc[afi][safi]) { | |
2794 | peer->afc[afi][safi] = 1; | |
2795 | peer_af_create(peer, afi, safi); | |
2796 | peer_group2peer_config_copy_af(group, peer, afi, | |
2797 | safi); | |
2798 | } else if (peer->afc[afi][safi]) | |
2799 | peer_deactivate(peer, afi, safi); | |
2800 | } | |
718e3744 | 2801 | |
d62a17ae | 2802 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); |
718e3744 | 2803 | |
d62a17ae | 2804 | /* Set up peer's events and timers. */ |
2805 | if (peer_active(peer)) | |
2806 | bgp_timer_set(peer); | |
2807 | } | |
718e3744 | 2808 | |
d62a17ae | 2809 | return 0; |
718e3744 | 2810 | } |
2811 | ||
d62a17ae | 2812 | static int bgp_startup_timer_expire(struct thread *thread) |
2813 | { | |
2814 | struct bgp *bgp; | |
718e3744 | 2815 | |
d62a17ae | 2816 | bgp = THREAD_ARG(thread); |
2817 | bgp->t_startup = NULL; | |
718e3744 | 2818 | |
d62a17ae | 2819 | return 0; |
2820 | } | |
e0701b79 | 2821 | |
829e590b DS |
2822 | /* |
2823 | * On shutdown we call the cleanup function which | |
2824 | * does a free of the link list nodes, free up | |
2825 | * the data we are pointing at too. | |
2826 | */ | |
2827 | static void bgp_vrf_string_name_delete(void *data) | |
2828 | { | |
2829 | char *vname = data; | |
2830 | ||
2831 | XFREE(MTYPE_TMP, vname); | |
2832 | } | |
2833 | ||
d62a17ae | 2834 | /* BGP instance creation by `router bgp' commands. */ |
2835 | static struct bgp *bgp_create(as_t *as, const char *name, | |
2836 | enum bgp_instance_type inst_type) | |
2837 | { | |
0291c246 MK |
2838 | struct bgp *bgp; |
2839 | afi_t afi; | |
2840 | safi_t safi; | |
d62a17ae | 2841 | |
2842 | if ((bgp = XCALLOC(MTYPE_BGP, sizeof(struct bgp))) == NULL) | |
2843 | return NULL; | |
2844 | ||
2845 | if (BGP_DEBUG(zebra, ZEBRA)) { | |
2846 | if (inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
2847 | zlog_debug("Creating Default VRF, AS %u", *as); | |
2848 | else | |
2849 | zlog_debug("Creating %s %s, AS %u", | |
2850 | (inst_type == BGP_INSTANCE_TYPE_VRF) | |
2851 | ? "VRF" | |
2852 | : "VIEW", | |
2853 | name, *as); | |
718e3744 | 2854 | } |
adbac85e | 2855 | |
e2f3a930 T |
2856 | /* Default the EVPN VRF to the default one */ |
2857 | if (inst_type == BGP_INSTANCE_TYPE_DEFAULT && !bgp_master.bgp_evpn) { | |
2858 | bgp_lock(bgp); | |
2859 | bm->bgp_evpn = bgp; | |
2860 | } | |
2861 | ||
d62a17ae | 2862 | bgp_lock(bgp); |
9df5ac49 | 2863 | bgp->heuristic_coalesce = true; |
d62a17ae | 2864 | bgp->inst_type = inst_type; |
2865 | bgp->vrf_id = (inst_type == BGP_INSTANCE_TYPE_DEFAULT) ? VRF_DEFAULT | |
2866 | : VRF_UNKNOWN; | |
2867 | bgp->peer_self = peer_new(bgp); | |
0a22ddfb | 2868 | XFREE(MTYPE_BGP_PEER_HOST, bgp->peer_self->host); |
d62a17ae | 2869 | bgp->peer_self->host = |
2870 | XSTRDUP(MTYPE_BGP_PEER_HOST, "Static announcement"); | |
d77114b7 MK |
2871 | if (bgp->peer_self->hostname != NULL) { |
2872 | XFREE(MTYPE_BGP_PEER_HOST, bgp->peer_self->hostname); | |
2873 | bgp->peer_self->hostname = NULL; | |
2874 | } | |
6b3ee3a0 | 2875 | if (cmd_hostname_get()) |
60466a63 QY |
2876 | bgp->peer_self->hostname = |
2877 | XSTRDUP(MTYPE_BGP_PEER_HOST, cmd_hostname_get()); | |
d77114b7 MK |
2878 | |
2879 | if (bgp->peer_self->domainname != NULL) { | |
2880 | XFREE(MTYPE_BGP_PEER_HOST, bgp->peer_self->domainname); | |
2881 | bgp->peer_self->domainname = NULL; | |
2882 | } | |
6b3ee3a0 | 2883 | if (cmd_domainname_get()) |
60466a63 QY |
2884 | bgp->peer_self->domainname = |
2885 | XSTRDUP(MTYPE_BGP_PEER_HOST, cmd_domainname_get()); | |
d62a17ae | 2886 | bgp->peer = list_new(); |
2887 | bgp->peer->cmp = (int (*)(void *, void *))peer_cmp; | |
a4d82a8a | 2888 | bgp->peerhash = hash_create(peer_hash_key_make, peer_hash_same, |
3f65c5b1 | 2889 | "BGP Peer Hash"); |
40520c36 | 2890 | bgp->peerhash->max_size = BGP_PEER_MAX_HASH_SIZE; |
d62a17ae | 2891 | |
2892 | bgp->group = list_new(); | |
2893 | bgp->group->cmp = (int (*)(void *, void *))peer_group_cmp; | |
2894 | ||
05c7a1cc | 2895 | FOREACH_AFI_SAFI (afi, safi) { |
960035b2 PZ |
2896 | bgp->route[afi][safi] = bgp_table_init(bgp, afi, safi); |
2897 | bgp->aggregate[afi][safi] = bgp_table_init(bgp, afi, safi); | |
2898 | bgp->rib[afi][safi] = bgp_table_init(bgp, afi, safi); | |
05c7a1cc QY |
2899 | |
2900 | /* Enable maximum-paths */ | |
2901 | bgp_maximum_paths_set(bgp, afi, safi, BGP_PEER_EBGP, | |
2902 | multipath_num, 0); | |
2903 | bgp_maximum_paths_set(bgp, afi, safi, BGP_PEER_IBGP, | |
2904 | multipath_num, 0); | |
2905 | } | |
d62a17ae | 2906 | |
2907 | bgp->v_update_delay = BGP_UPDATE_DELAY_DEF; | |
2908 | bgp->default_local_pref = BGP_DEFAULT_LOCAL_PREF; | |
2909 | bgp->default_subgroup_pkt_queue_max = | |
2910 | BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX; | |
5d5393b9 | 2911 | bgp_timers_unset(bgp); |
d62a17ae | 2912 | bgp->restart_time = BGP_DEFAULT_RESTART_TIME; |
2913 | bgp->stalepath_time = BGP_DEFAULT_STALEPATH_TIME; | |
2914 | bgp->dynamic_neighbors_limit = BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT; | |
2915 | bgp->dynamic_neighbors_count = 0; | |
9dac9fc8 | 2916 | bgp->ebgp_requires_policy = DEFAULT_EBGP_POLICY_DISABLED; |
fb29348a | 2917 | bgp->reject_as_sets = BGP_REJECT_AS_SETS_DISABLED; |
dcc68b5e | 2918 | bgp_addpath_init_bgp_data(&bgp->tx_addpath); |
d62a17ae | 2919 | |
2920 | bgp->as = *as; | |
2921 | ||
2922 | #if ENABLE_BGP_VNC | |
2923 | if (inst_type != BGP_INSTANCE_TYPE_VRF) { | |
2924 | bgp->rfapi = bgp_rfapi_new(bgp); | |
2925 | assert(bgp->rfapi); | |
2926 | assert(bgp->rfapi_cfg); | |
2927 | } | |
2928 | #endif /* ENABLE_BGP_VNC */ | |
adbac85e | 2929 | |
ddb5b488 | 2930 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
e70e9f8e PZ |
2931 | bgp->vpn_policy[afi].bgp = bgp; |
2932 | bgp->vpn_policy[afi].afi = afi; | |
ddb5b488 PZ |
2933 | bgp->vpn_policy[afi].tovpn_label = MPLS_LABEL_NONE; |
2934 | bgp->vpn_policy[afi].tovpn_zebra_vrf_label_last_sent = | |
2935 | MPLS_LABEL_NONE; | |
12a844a5 DS |
2936 | |
2937 | bgp->vpn_policy[afi].import_vrf = list_new(); | |
829e590b DS |
2938 | bgp->vpn_policy[afi].import_vrf->del = |
2939 | bgp_vrf_string_name_delete; | |
12a844a5 | 2940 | bgp->vpn_policy[afi].export_vrf = list_new(); |
829e590b DS |
2941 | bgp->vpn_policy[afi].export_vrf->del = |
2942 | bgp_vrf_string_name_delete; | |
ddb5b488 | 2943 | } |
d62a17ae | 2944 | if (name) { |
2945 | bgp->name = XSTRDUP(MTYPE_BGP, name); | |
2946 | } else { | |
2947 | /* TODO - The startup timer needs to be run for the whole of BGP | |
2948 | */ | |
2949 | thread_add_timer(bm->master, bgp_startup_timer_expire, bgp, | |
2950 | bgp->restart_time, &bgp->t_startup); | |
2951 | } | |
06370dac | 2952 | |
3572fb26 PZ |
2953 | /* printable name we can use in debug messages */ |
2954 | if (inst_type == BGP_INSTANCE_TYPE_DEFAULT) { | |
2955 | bgp->name_pretty = XSTRDUP(MTYPE_BGP, "VRF default"); | |
2956 | } else { | |
2957 | const char *n; | |
2958 | int len; | |
2959 | ||
2960 | if (bgp->name) | |
2961 | n = bgp->name; | |
2962 | else | |
2963 | n = "?"; | |
2964 | ||
2965 | len = 4 + 1 + strlen(n) + 1; /* "view foo\0" */ | |
2966 | ||
2967 | bgp->name_pretty = XCALLOC(MTYPE_BGP, len); | |
2968 | snprintf(bgp->name_pretty, len, "%s %s", | |
2969 | (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) | |
2970 | ? "VRF" | |
2971 | : "VIEW", | |
2972 | n); | |
2973 | } | |
2974 | ||
555e09d4 QY |
2975 | atomic_store_explicit(&bgp->wpkt_quanta, BGP_WRITE_PACKET_MAX, |
2976 | memory_order_relaxed); | |
2977 | atomic_store_explicit(&bgp->rpkt_quanta, BGP_READ_PACKET_MAX, | |
2978 | memory_order_relaxed); | |
d62a17ae | 2979 | bgp->coalesce_time = BGP_DEFAULT_SUBGROUP_COALESCE_TIME; |
adbac85e | 2980 | |
d62a17ae | 2981 | QOBJ_REG(bgp, bgp); |
adbac85e | 2982 | |
d62a17ae | 2983 | update_bgp_group_init(bgp); |
92708db6 | 2984 | |
2985 | /* assign a unique rd id for auto derivation of vrf's RD */ | |
2986 | bf_assign_index(bm->rd_idspace, bgp->vrf_rd_id); | |
2987 | ||
85c8d83b CS |
2988 | bgp->evpn_info = XCALLOC(MTYPE_BGP_EVPN_INFO, |
2989 | sizeof(struct bgp_evpn_info)); | |
2990 | ||
d62a17ae | 2991 | bgp_evpn_init(bgp); |
f3d32faa | 2992 | bgp_pbr_init(bgp); |
d62a17ae | 2993 | return bgp; |
718e3744 | 2994 | } |
2995 | ||
d62a17ae | 2996 | /* Return the "default VRF" instance of BGP. */ |
2997 | struct bgp *bgp_get_default(void) | |
718e3744 | 2998 | { |
d62a17ae | 2999 | struct bgp *bgp; |
3000 | struct listnode *node, *nnode; | |
3001 | ||
3002 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) | |
3003 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
3004 | return bgp; | |
3005 | return NULL; | |
718e3744 | 3006 | } |
3007 | ||
d62a17ae | 3008 | /* Lookup BGP entry. */ |
3009 | struct bgp *bgp_lookup(as_t as, const char *name) | |
718e3744 | 3010 | { |
d62a17ae | 3011 | struct bgp *bgp; |
3012 | struct listnode *node, *nnode; | |
6b0655a2 | 3013 | |
d62a17ae | 3014 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) |
3015 | if (bgp->as == as | |
3016 | && ((bgp->name == NULL && name == NULL) | |
3017 | || (bgp->name && name && strcmp(bgp->name, name) == 0))) | |
3018 | return bgp; | |
3019 | return NULL; | |
3020 | } | |
73d70fa6 | 3021 | |
d62a17ae | 3022 | /* Lookup BGP structure by view name. */ |
3023 | struct bgp *bgp_lookup_by_name(const char *name) | |
73d70fa6 | 3024 | { |
d62a17ae | 3025 | struct bgp *bgp; |
3026 | struct listnode *node, *nnode; | |
3027 | ||
3028 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) | |
3029 | if ((bgp->name == NULL && name == NULL) | |
3030 | || (bgp->name && name && strcmp(bgp->name, name) == 0)) | |
3031 | return bgp; | |
3032 | return NULL; | |
73d70fa6 DL |
3033 | } |
3034 | ||
d62a17ae | 3035 | /* Lookup BGP instance based on VRF id. */ |
3036 | /* Note: Only to be used for incoming messages from Zebra. */ | |
3037 | struct bgp *bgp_lookup_by_vrf_id(vrf_id_t vrf_id) | |
73d70fa6 | 3038 | { |
d62a17ae | 3039 | struct vrf *vrf; |
3040 | ||
3041 | /* Lookup VRF (in tree) and follow link. */ | |
3042 | vrf = vrf_lookup_by_id(vrf_id); | |
3043 | if (!vrf) | |
3044 | return NULL; | |
3045 | return (vrf->info) ? (struct bgp *)vrf->info : NULL; | |
73d70fa6 DL |
3046 | } |
3047 | ||
e2f3a930 T |
3048 | /* Sets the BGP instance where EVPN is enabled */ |
3049 | void bgp_set_evpn(struct bgp *bgp) | |
3050 | { | |
3051 | if (bm->bgp_evpn == bgp) | |
3052 | return; | |
3053 | ||
3054 | /* First, release the reference count we hold on the instance */ | |
3055 | if (bm->bgp_evpn) | |
3056 | bgp_unlock(bm->bgp_evpn); | |
3057 | ||
3058 | bm->bgp_evpn = bgp; | |
3059 | ||
3060 | /* Increase the reference count on this new VRF */ | |
3061 | if (bm->bgp_evpn) | |
3062 | bgp_lock(bm->bgp_evpn); | |
3063 | } | |
3064 | ||
3065 | /* Returns the BGP instance where EVPN is enabled, if any */ | |
3066 | struct bgp *bgp_get_evpn(void) | |
3067 | { | |
3068 | return bm->bgp_evpn; | |
3069 | } | |
3070 | ||
e5619c28 PG |
3071 | /* handle socket creation or deletion, if necessary |
3072 | * this is called for all new BGP instances | |
3073 | */ | |
996c9314 LB |
3074 | int bgp_handle_socket(struct bgp *bgp, struct vrf *vrf, vrf_id_t old_vrf_id, |
3075 | bool create) | |
e5619c28 PG |
3076 | { |
3077 | int ret = 0; | |
3078 | ||
3079 | /* Create BGP server socket, if listen mode not disabled */ | |
3080 | if (!bgp || bgp_option_check(BGP_OPT_NO_LISTEN)) | |
3081 | return 0; | |
3ad00234 | 3082 | if (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) { |
e5619c28 PG |
3083 | /* |
3084 | * suppress vrf socket | |
3085 | */ | |
2951a7a4 | 3086 | if (create == false) { |
3ad00234 LB |
3087 | bgp_close_vrf_socket(bgp); |
3088 | return 0; | |
e5619c28 | 3089 | } |
3ad00234 LB |
3090 | if (vrf == NULL) |
3091 | return BGP_ERR_INVALID_VALUE; | |
e5619c28 PG |
3092 | /* do nothing |
3093 | * if vrf_id did not change | |
3094 | */ | |
3095 | if (vrf->vrf_id == old_vrf_id) | |
3096 | return 0; | |
3097 | if (old_vrf_id != VRF_UNKNOWN) { | |
3098 | /* look for old socket. close it. */ | |
3099 | bgp_close_vrf_socket(bgp); | |
3100 | } | |
3101 | /* if backend is not yet identified ( VRF_UNKNOWN) then | |
3102 | * creation will be done later | |
3103 | */ | |
3104 | if (vrf->vrf_id == VRF_UNKNOWN) | |
3105 | return 0; | |
3ad00234 LB |
3106 | ret = bgp_socket(bgp, bm->port, bm->address); |
3107 | if (ret < 0) | |
3108 | return BGP_ERR_INVALID_VALUE; | |
3109 | return 0; | |
3110 | } else | |
3111 | return bgp_check_main_socket(create, bgp); | |
e5619c28 PG |
3112 | } |
3113 | ||
d62a17ae | 3114 | /* Called from VTY commands. */ |
3115 | int bgp_get(struct bgp **bgp_val, as_t *as, const char *name, | |
3116 | enum bgp_instance_type inst_type) | |
3117 | { | |
3118 | struct bgp *bgp; | |
e5619c28 | 3119 | struct vrf *vrf = NULL; |
d62a17ae | 3120 | |
3121 | /* Multiple instance check. */ | |
8fbb4853 DS |
3122 | if (name) |
3123 | bgp = bgp_lookup_by_name(name); | |
3124 | else | |
d62a17ae | 3125 | bgp = bgp_get_default(); |
3126 | ||
8fbb4853 DS |
3127 | /* Already exists. */ |
3128 | if (bgp) { | |
3129 | if (bgp->as != *as) { | |
3130 | *as = bgp->as; | |
3131 | return BGP_ERR_INSTANCE_MISMATCH; | |
d62a17ae | 3132 | } |
8fbb4853 DS |
3133 | if (bgp->inst_type != inst_type) |
3134 | return BGP_ERR_INSTANCE_MISMATCH; | |
3135 | *bgp_val = bgp; | |
d5568431 | 3136 | return BGP_SUCCESS; |
d62a17ae | 3137 | } |
73d70fa6 | 3138 | |
d62a17ae | 3139 | bgp = bgp_create(as, name, inst_type); |
0b014ea6 PG |
3140 | if (bgp_option_check(BGP_OPT_NO_ZEBRA) && name) |
3141 | bgp->vrf_id = vrf_generate_id(); | |
2951a7a4 | 3142 | bgp_router_id_set(bgp, &bgp->router_id_zebra, true); |
d62a17ae | 3143 | bgp_address_init(bgp); |
db0e1937 | 3144 | bgp_tip_hash_init(bgp); |
d62a17ae | 3145 | bgp_scan_init(bgp); |
3146 | *bgp_val = bgp; | |
eb821189 | 3147 | |
d62a17ae | 3148 | bgp->t_rmap_def_originate_eval = NULL; |
e5cc509c | 3149 | |
d62a17ae | 3150 | /* If Default instance or VRF, link to the VRF structure, if present. */ |
3151 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT | |
3152 | || bgp->inst_type == BGP_INSTANCE_TYPE_VRF) { | |
d62a17ae | 3153 | vrf = bgp_vrf_lookup_by_instance_type(bgp); |
3154 | if (vrf) | |
3155 | bgp_vrf_link(bgp, vrf); | |
3156 | } | |
e5619c28 PG |
3157 | /* BGP server socket already processed if BGP instance |
3158 | * already part of the list | |
3159 | */ | |
3160 | bgp_handle_socket(bgp, vrf, VRF_UNKNOWN, true); | |
3161 | listnode_add(bm->bgp, bgp); | |
718e3744 | 3162 | |
bb4ef1ae DS |
3163 | if (IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
3164 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3165 | zlog_debug("%s: Registering BGP instance %s to zebra", | |
3166 | __PRETTY_FUNCTION__, name); | |
d62a17ae | 3167 | bgp_zebra_instance_register(bgp); |
bb4ef1ae | 3168 | } |
718e3744 | 3169 | |
5d5393b9 | 3170 | return BGP_CREATED; |
718e3744 | 3171 | } |
6b0655a2 | 3172 | |
d62a17ae | 3173 | /* |
3174 | * Make BGP instance "up". Applies only to VRFs (non-default) and | |
3175 | * implies the VRF has been learnt from Zebra. | |
3176 | */ | |
3177 | void bgp_instance_up(struct bgp *bgp) | |
718e3744 | 3178 | { |
d62a17ae | 3179 | struct peer *peer; |
3180 | struct listnode *node, *next; | |
718e3744 | 3181 | |
d62a17ae | 3182 | /* Register with zebra. */ |
3183 | bgp_zebra_instance_register(bgp); | |
718e3744 | 3184 | |
d62a17ae | 3185 | /* Kick off any peers that may have been configured. */ |
3186 | for (ALL_LIST_ELEMENTS(bgp->peer, node, next, peer)) { | |
3187 | if (!BGP_PEER_START_SUPPRESSED(peer)) | |
3188 | BGP_EVENT_ADD(peer, BGP_Start); | |
718e3744 | 3189 | } |
3190 | ||
d62a17ae | 3191 | /* Process any networks that have been configured. */ |
3192 | bgp_static_add(bgp); | |
3193 | } | |
3194 | ||
3195 | /* | |
3196 | * Make BGP instance "down". Applies only to VRFs (non-default) and | |
3197 | * implies the VRF has been deleted by Zebra. | |
3198 | */ | |
3199 | void bgp_instance_down(struct bgp *bgp) | |
3200 | { | |
3201 | struct peer *peer; | |
3202 | struct listnode *node; | |
3203 | struct listnode *next; | |
3204 | ||
3205 | /* Stop timers. */ | |
3206 | if (bgp->t_rmap_def_originate_eval) { | |
3207 | BGP_TIMER_OFF(bgp->t_rmap_def_originate_eval); | |
3208 | bgp_unlock(bgp); /* TODO - This timer is started with a lock - | |
3209 | why? */ | |
718e3744 | 3210 | } |
3211 | ||
d62a17ae | 3212 | /* Bring down peers, so corresponding routes are purged. */ |
3213 | for (ALL_LIST_ELEMENTS(bgp->peer, node, next, peer)) { | |
3214 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
3215 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3216 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN); | |
3217 | else | |
3218 | bgp_session_reset(peer); | |
3219 | } | |
718e3744 | 3220 | |
d62a17ae | 3221 | /* Purge network and redistributed routes. */ |
3222 | bgp_purge_static_redist_routes(bgp); | |
ee7ca6c0 | 3223 | |
3224 | /* Cleanup registered nexthops (flags) */ | |
3225 | bgp_cleanup_nexthops(bgp); | |
718e3744 | 3226 | } |
3227 | ||
d62a17ae | 3228 | /* Delete BGP instance. */ |
3229 | int bgp_delete(struct bgp *bgp) | |
3230 | { | |
3231 | struct peer *peer; | |
3232 | struct peer_group *group; | |
3233 | struct listnode *node, *next; | |
3234 | struct vrf *vrf; | |
3235 | afi_t afi; | |
3236 | int i; | |
3237 | ||
bf383464 | 3238 | assert(bgp); |
2b9bcf30 DL |
3239 | |
3240 | hook_call(bgp_inst_delete, bgp); | |
3241 | ||
d62a17ae | 3242 | THREAD_OFF(bgp->t_startup); |
c969b2ed DS |
3243 | THREAD_OFF(bgp->t_maxmed_onstartup); |
3244 | THREAD_OFF(bgp->t_update_delay); | |
3245 | THREAD_OFF(bgp->t_establish_wait); | |
d62a17ae | 3246 | |
9f822fa2 S |
3247 | /* Set flag indicating bgp instance delete in progress */ |
3248 | bgp_flag_set(bgp, BGP_FLAG_DELETE_IN_PROGRESS); | |
3249 | ||
d62a17ae | 3250 | if (BGP_DEBUG(zebra, ZEBRA)) { |
3251 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
3252 | zlog_debug("Deleting Default VRF"); | |
3253 | else | |
3254 | zlog_debug("Deleting %s %s", | |
3255 | (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) | |
3256 | ? "VRF" | |
3257 | : "VIEW", | |
3258 | bgp->name); | |
718e3744 | 3259 | } |
3260 | ||
10ebe1ab MK |
3261 | /* unmap from RT list */ |
3262 | bgp_evpn_vrf_delete(bgp); | |
3263 | ||
dfd17258 PG |
3264 | /* unmap bgp vrf label */ |
3265 | vpn_leak_zebra_vrf_label_withdraw(bgp, AFI_IP); | |
3266 | vpn_leak_zebra_vrf_label_withdraw(bgp, AFI_IP6); | |
3267 | ||
d62a17ae | 3268 | /* Stop timers. */ |
3269 | if (bgp->t_rmap_def_originate_eval) { | |
3270 | BGP_TIMER_OFF(bgp->t_rmap_def_originate_eval); | |
3271 | bgp_unlock(bgp); /* TODO - This timer is started with a lock - | |
3272 | why? */ | |
718e3744 | 3273 | } |
3274 | ||
d62a17ae | 3275 | /* Inform peers we're going down. */ |
3276 | for (ALL_LIST_ELEMENTS(bgp->peer, node, next, peer)) { | |
3277 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
3278 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3279 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN); | |
718e3744 | 3280 | } |
3281 | ||
d62a17ae | 3282 | /* Delete static routes (networks). */ |
3283 | bgp_static_delete(bgp); | |
6b0655a2 | 3284 | |
d62a17ae | 3285 | /* Unset redistribution. */ |
3286 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
3287 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
3288 | if (i != ZEBRA_ROUTE_BGP) | |
3289 | bgp_redistribute_unset(bgp, afi, i, 0); | |
718e3744 | 3290 | |
d62a17ae | 3291 | /* Free peers and peer-groups. */ |
3292 | for (ALL_LIST_ELEMENTS(bgp->group, node, next, group)) | |
3293 | peer_group_delete(group); | |
718e3744 | 3294 | |
d62a17ae | 3295 | for (ALL_LIST_ELEMENTS(bgp->peer, node, next, peer)) |
3296 | peer_delete(peer); | |
3297 | ||
3298 | if (bgp->peer_self) { | |
3299 | peer_delete(bgp->peer_self); | |
3300 | bgp->peer_self = NULL; | |
718e3744 | 3301 | } |
3302 | ||
d62a17ae | 3303 | update_bgp_group_free(bgp); |
718e3744 | 3304 | |
d62a17ae | 3305 | /* TODO - Other memory may need to be freed - e.g., NHT */ |
3306 | ||
3307 | #if ENABLE_BGP_VNC | |
3308 | rfapi_delete(bgp); | |
3309 | #endif | |
3310 | bgp_cleanup_routes(bgp); | |
718e3744 | 3311 | |
301ad80a PG |
3312 | for (afi = 0; afi < AFI_MAX; ++afi) { |
3313 | if (!bgp->vpn_policy[afi].import_redirect_rtlist) | |
3314 | continue; | |
3315 | ecommunity_free( | |
3316 | &bgp->vpn_policy[afi] | |
3317 | .import_redirect_rtlist); | |
3318 | bgp->vpn_policy[afi].import_redirect_rtlist = NULL; | |
3319 | } | |
718e3744 | 3320 | |
d62a17ae | 3321 | /* Deregister from Zebra, if needed */ |
bb4ef1ae DS |
3322 | if (IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
3323 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3324 | zlog_debug("%s: deregistering this bgp %s instance from zebra", | |
3325 | __PRETTY_FUNCTION__, bgp->name); | |
d62a17ae | 3326 | bgp_zebra_instance_deregister(bgp); |
bb4ef1ae | 3327 | } |
718e3744 | 3328 | |
de6058ab AK |
3329 | /* Remove visibility via the master list - there may however still be |
3330 | * routes to be processed still referencing the struct bgp. | |
3331 | */ | |
3332 | listnode_delete(bm->bgp, bgp); | |
3333 | ||
d62a17ae | 3334 | /* Free interfaces in this instance. */ |
3335 | bgp_if_finish(bgp); | |
718e3744 | 3336 | |
d62a17ae | 3337 | vrf = bgp_vrf_lookup_by_instance_type(bgp); |
e5619c28 | 3338 | bgp_handle_socket(bgp, vrf, VRF_UNKNOWN, false); |
d62a17ae | 3339 | if (vrf) |
3340 | bgp_vrf_unlink(bgp, vrf); | |
718e3744 | 3341 | |
e2f3a930 T |
3342 | /* Update EVPN VRF pointer */ |
3343 | if (bm->bgp_evpn == bgp) { | |
3344 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
3345 | bgp_set_evpn(NULL); | |
3346 | else | |
3347 | bgp_set_evpn(bgp_get_default()); | |
3348 | } | |
3349 | ||
d62a17ae | 3350 | thread_master_free_unused(bm->master); |
3351 | bgp_unlock(bgp); /* initial reference */ | |
718e3744 | 3352 | |
d62a17ae | 3353 | return 0; |
718e3744 | 3354 | } |
6b0655a2 | 3355 | |
92375c91 | 3356 | void bgp_free(struct bgp *bgp) |
d93f7ffc | 3357 | { |
d62a17ae | 3358 | afi_t afi; |
3359 | safi_t safi; | |
3360 | struct bgp_table *table; | |
3361 | struct bgp_node *rn; | |
f8265580 | 3362 | struct bgp_rmap *rmap; |
d93f7ffc | 3363 | |
d62a17ae | 3364 | QOBJ_UNREG(bgp); |
d93f7ffc | 3365 | |
6a154c88 DL |
3366 | list_delete(&bgp->group); |
3367 | list_delete(&bgp->peer); | |
966f821c | 3368 | |
d62a17ae | 3369 | if (bgp->peerhash) { |
3370 | hash_free(bgp->peerhash); | |
3371 | bgp->peerhash = NULL; | |
3372 | } | |
718e3744 | 3373 | |
05c7a1cc QY |
3374 | FOREACH_AFI_SAFI (afi, safi) { |
3375 | /* Special handling for 2-level routing tables. */ | |
3376 | if (safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP | |
3377 | || safi == SAFI_EVPN) { | |
3378 | for (rn = bgp_table_top(bgp->rib[afi][safi]); rn; | |
3379 | rn = bgp_route_next(rn)) { | |
67009e22 | 3380 | table = bgp_node_get_bgp_table_info(rn); |
05c7a1cc | 3381 | bgp_table_finish(&table); |
d62a17ae | 3382 | } |
d62a17ae | 3383 | } |
05c7a1cc QY |
3384 | if (bgp->route[afi][safi]) |
3385 | bgp_table_finish(&bgp->route[afi][safi]); | |
3386 | if (bgp->aggregate[afi][safi]) | |
3387 | bgp_table_finish(&bgp->aggregate[afi][safi]); | |
3388 | if (bgp->rib[afi][safi]) | |
3389 | bgp_table_finish(&bgp->rib[afi][safi]); | |
3390 | rmap = &bgp->table_map[afi][safi]; | |
0a22ddfb | 3391 | XFREE(MTYPE_ROUTE_MAP_NAME, rmap->name); |
05c7a1cc | 3392 | } |
718e3744 | 3393 | |
d62a17ae | 3394 | bgp_scan_finish(bgp); |
3395 | bgp_address_destroy(bgp); | |
db0e1937 | 3396 | bgp_tip_hash_destroy(bgp); |
966f821c | 3397 | |
92708db6 | 3398 | /* release the auto RD id */ |
3399 | bf_release_index(bm->rd_idspace, bgp->vrf_rd_id); | |
3400 | ||
d62a17ae | 3401 | bgp_evpn_cleanup(bgp); |
a6b07429 | 3402 | bgp_pbr_cleanup(bgp); |
85c8d83b | 3403 | XFREE(MTYPE_BGP_EVPN_INFO, bgp->evpn_info); |
829e590b DS |
3404 | |
3405 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
3406 | vpn_policy_direction_t dir; | |
3407 | ||
3408 | if (bgp->vpn_policy[afi].import_vrf) | |
6a154c88 | 3409 | list_delete(&bgp->vpn_policy[afi].import_vrf); |
829e590b | 3410 | if (bgp->vpn_policy[afi].export_vrf) |
6a154c88 | 3411 | list_delete(&bgp->vpn_policy[afi].export_vrf); |
829e590b DS |
3412 | |
3413 | dir = BGP_VPN_POLICY_DIR_FROMVPN; | |
3414 | if (bgp->vpn_policy[afi].rtlist[dir]) | |
3415 | ecommunity_free(&bgp->vpn_policy[afi].rtlist[dir]); | |
3416 | dir = BGP_VPN_POLICY_DIR_TOVPN; | |
3417 | if (bgp->vpn_policy[afi].rtlist[dir]) | |
3418 | ecommunity_free(&bgp->vpn_policy[afi].rtlist[dir]); | |
3419 | } | |
3420 | ||
0a22ddfb QY |
3421 | XFREE(MTYPE_BGP, bgp->name); |
3422 | XFREE(MTYPE_BGP, bgp->name_pretty); | |
966f821c | 3423 | |
d62a17ae | 3424 | XFREE(MTYPE_BGP, bgp); |
718e3744 | 3425 | } |
3426 | ||
d62a17ae | 3427 | struct peer *peer_lookup_by_conf_if(struct bgp *bgp, const char *conf_if) |
718e3744 | 3428 | { |
d62a17ae | 3429 | struct peer *peer; |
3430 | struct listnode *node, *nnode; | |
966f821c | 3431 | |
d62a17ae | 3432 | if (!conf_if) |
3433 | return NULL; | |
6b0655a2 | 3434 | |
d62a17ae | 3435 | if (bgp != NULL) { |
3436 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
3437 | if (peer->conf_if && !strcmp(peer->conf_if, conf_if) | |
3438 | && !CHECK_FLAG(peer->sflags, | |
3439 | PEER_STATUS_ACCEPT_PEER)) | |
3440 | return peer; | |
3441 | } else if (bm->bgp != NULL) { | |
3442 | struct listnode *bgpnode, *nbgpnode; | |
3443 | ||
3444 | for (ALL_LIST_ELEMENTS(bm->bgp, bgpnode, nbgpnode, bgp)) | |
3445 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
3446 | if (peer->conf_if | |
3447 | && !strcmp(peer->conf_if, conf_if) | |
3448 | && !CHECK_FLAG(peer->sflags, | |
3449 | PEER_STATUS_ACCEPT_PEER)) | |
3450 | return peer; | |
3451 | } | |
3452 | return NULL; | |
718e3744 | 3453 | } |
3454 | ||
d62a17ae | 3455 | struct peer *peer_lookup_by_hostname(struct bgp *bgp, const char *hostname) |
718e3744 | 3456 | { |
d62a17ae | 3457 | struct peer *peer; |
3458 | struct listnode *node, *nnode; | |
6b0655a2 | 3459 | |
d62a17ae | 3460 | if (!hostname) |
3461 | return NULL; | |
6b0655a2 | 3462 | |
d62a17ae | 3463 | if (bgp != NULL) { |
3464 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
3465 | if (peer->hostname && !strcmp(peer->hostname, hostname) | |
3466 | && !CHECK_FLAG(peer->sflags, | |
3467 | PEER_STATUS_ACCEPT_PEER)) | |
3468 | return peer; | |
3469 | } else if (bm->bgp != NULL) { | |
3470 | struct listnode *bgpnode, *nbgpnode; | |
3471 | ||
3472 | for (ALL_LIST_ELEMENTS(bm->bgp, bgpnode, nbgpnode, bgp)) | |
3473 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
3474 | if (peer->hostname | |
3475 | && !strcmp(peer->hostname, hostname) | |
3476 | && !CHECK_FLAG(peer->sflags, | |
3477 | PEER_STATUS_ACCEPT_PEER)) | |
3478 | return peer; | |
3479 | } | |
3480 | return NULL; | |
3481 | } | |
3482 | ||
3483 | struct peer *peer_lookup(struct bgp *bgp, union sockunion *su) | |
3484 | { | |
3485 | struct peer *peer = NULL; | |
3486 | struct peer tmp_peer; | |
3487 | ||
3488 | memset(&tmp_peer, 0, sizeof(struct peer)); | |
3489 | ||
3490 | /* | |
3491 | * We do not want to find the doppelganger peer so search for the peer | |
3492 | * in | |
3493 | * the hash that has PEER_FLAG_CONFIG_NODE | |
3494 | */ | |
3495 | SET_FLAG(tmp_peer.flags, PEER_FLAG_CONFIG_NODE); | |
3496 | ||
3497 | tmp_peer.su = *su; | |
3498 | ||
3499 | if (bgp != NULL) { | |
3500 | peer = hash_lookup(bgp->peerhash, &tmp_peer); | |
3501 | } else if (bm->bgp != NULL) { | |
3502 | struct listnode *bgpnode, *nbgpnode; | |
3503 | ||
3504 | for (ALL_LIST_ELEMENTS(bm->bgp, bgpnode, nbgpnode, bgp)) { | |
d62a17ae | 3505 | peer = hash_lookup(bgp->peerhash, &tmp_peer); |
d62a17ae | 3506 | if (peer) |
3507 | break; | |
3508 | } | |
3509 | } | |
3510 | ||
3511 | return peer; | |
3512 | } | |
3513 | ||
3514 | struct peer *peer_create_bind_dynamic_neighbor(struct bgp *bgp, | |
3515 | union sockunion *su, | |
3516 | struct peer_group *group) | |
3517 | { | |
3518 | struct peer *peer; | |
3519 | afi_t afi; | |
3520 | safi_t safi; | |
3521 | ||
3522 | /* Create peer first; we've already checked group config is valid. */ | |
3523 | peer = peer_create(su, NULL, bgp, bgp->as, group->conf->as, | |
3524 | group->conf->as_type, 0, 0, group); | |
3525 | if (!peer) | |
3526 | return NULL; | |
3527 | ||
3528 | /* Link to group */ | |
3529 | peer = peer_lock(peer); | |
3530 | listnode_add(group->peer, peer); | |
3531 | ||
3532 | peer_group2peer_config_copy(group, peer); | |
3533 | ||
3534 | /* | |
3535 | * Bind peer for all AFs configured for the group. We don't call | |
3536 | * peer_group_bind as that is sub-optimal and does some stuff we don't | |
3537 | * want. | |
3538 | */ | |
05c7a1cc QY |
3539 | FOREACH_AFI_SAFI (afi, safi) { |
3540 | if (!group->conf->afc[afi][safi]) | |
3541 | continue; | |
3542 | peer->afc[afi][safi] = 1; | |
d62a17ae | 3543 | |
05c7a1cc QY |
3544 | if (!peer_af_find(peer, afi, safi)) |
3545 | peer_af_create(peer, afi, safi); | |
d62a17ae | 3546 | |
05c7a1cc QY |
3547 | peer_group2peer_config_copy_af(group, peer, afi, safi); |
3548 | } | |
d62a17ae | 3549 | |
3550 | /* Mark as dynamic, but also as a "config node" for other things to | |
3551 | * work. */ | |
3552 | SET_FLAG(peer->flags, PEER_FLAG_DYNAMIC_NEIGHBOR); | |
3553 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); | |
3554 | ||
3555 | return peer; | |
3556 | } | |
3557 | ||
3558 | struct prefix * | |
3559 | peer_group_lookup_dynamic_neighbor_range(struct peer_group *group, | |
3560 | struct prefix *prefix) | |
3561 | { | |
3562 | struct listnode *node, *nnode; | |
3563 | struct prefix *range; | |
3564 | afi_t afi; | |
3565 | ||
3566 | afi = family2afi(prefix->family); | |
3567 | ||
3568 | if (group->listen_range[afi]) | |
3569 | for (ALL_LIST_ELEMENTS(group->listen_range[afi], node, nnode, | |
3570 | range)) | |
3571 | if (prefix_match(range, prefix)) | |
3572 | return range; | |
3573 | ||
3574 | return NULL; | |
3575 | } | |
3576 | ||
3577 | struct peer_group * | |
3578 | peer_group_lookup_dynamic_neighbor(struct bgp *bgp, struct prefix *prefix, | |
3579 | struct prefix **listen_range) | |
3580 | { | |
3581 | struct prefix *range = NULL; | |
3582 | struct peer_group *group = NULL; | |
3583 | struct listnode *node, *nnode; | |
3584 | ||
3585 | *listen_range = NULL; | |
3586 | if (bgp != NULL) { | |
3587 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) | |
3588 | if ((range = peer_group_lookup_dynamic_neighbor_range( | |
3589 | group, prefix))) | |
3590 | break; | |
3591 | } else if (bm->bgp != NULL) { | |
3592 | struct listnode *bgpnode, *nbgpnode; | |
3593 | ||
3594 | for (ALL_LIST_ELEMENTS(bm->bgp, bgpnode, nbgpnode, bgp)) | |
3595 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) | |
3596 | if ((range = peer_group_lookup_dynamic_neighbor_range( | |
3597 | group, prefix))) | |
3598 | goto found_range; | |
3599 | } | |
3600 | ||
3601 | found_range: | |
3602 | *listen_range = range; | |
3603 | return (group && range) ? group : NULL; | |
3604 | } | |
3605 | ||
3606 | struct peer *peer_lookup_dynamic_neighbor(struct bgp *bgp, union sockunion *su) | |
3607 | { | |
3608 | struct peer_group *group; | |
3609 | struct bgp *gbgp; | |
3610 | struct peer *peer; | |
3611 | struct prefix prefix; | |
3612 | struct prefix *listen_range; | |
3613 | int dncount; | |
3614 | char buf[PREFIX2STR_BUFFER]; | |
3615 | char buf1[PREFIX2STR_BUFFER]; | |
3616 | ||
3617 | sockunion2hostprefix(su, &prefix); | |
3618 | ||
3619 | /* See if incoming connection matches a configured listen range. */ | |
3620 | group = peer_group_lookup_dynamic_neighbor(bgp, &prefix, &listen_range); | |
3621 | ||
3622 | if (!group) | |
3623 | return NULL; | |
3624 | ||
3625 | ||
3626 | gbgp = group->bgp; | |
3627 | ||
3628 | if (!gbgp) | |
3629 | return NULL; | |
3630 | ||
3631 | prefix2str(&prefix, buf, sizeof(buf)); | |
3632 | prefix2str(listen_range, buf1, sizeof(buf1)); | |
3633 | ||
3634 | if (bgp_debug_neighbor_events(NULL)) | |
3635 | zlog_debug( | |
3636 | "Dynamic Neighbor %s matches group %s listen range %s", | |
3637 | buf, group->name, buf1); | |
3638 | ||
3639 | /* Are we within the listen limit? */ | |
3640 | dncount = gbgp->dynamic_neighbors_count; | |
3641 | ||
3642 | if (dncount >= gbgp->dynamic_neighbors_limit) { | |
3643 | if (bgp_debug_neighbor_events(NULL)) | |
3644 | zlog_debug("Dynamic Neighbor %s rejected - at limit %d", | |
3645 | inet_sutop(su, buf), | |
3646 | gbgp->dynamic_neighbors_limit); | |
3647 | return NULL; | |
3648 | } | |
3649 | ||
3650 | /* Ensure group is not disabled. */ | |
3651 | if (CHECK_FLAG(group->conf->flags, PEER_FLAG_SHUTDOWN)) { | |
3652 | if (bgp_debug_neighbor_events(NULL)) | |
3653 | zlog_debug( | |
3654 | "Dynamic Neighbor %s rejected - group %s disabled", | |
3655 | buf, group->name); | |
3656 | return NULL; | |
3657 | } | |
3658 | ||
3659 | /* Check that at least one AF is activated for the group. */ | |
3660 | if (!peer_group_af_configured(group)) { | |
3661 | if (bgp_debug_neighbor_events(NULL)) | |
3662 | zlog_debug( | |
3663 | "Dynamic Neighbor %s rejected - no AF activated for group %s", | |
3664 | buf, group->name); | |
3665 | return NULL; | |
3666 | } | |
3667 | ||
3668 | /* Create dynamic peer and bind to associated group. */ | |
3669 | peer = peer_create_bind_dynamic_neighbor(gbgp, su, group); | |
3670 | assert(peer); | |
3671 | ||
3672 | gbgp->dynamic_neighbors_count = ++dncount; | |
3673 | ||
3674 | if (bgp_debug_neighbor_events(peer)) | |
3675 | zlog_debug("%s Dynamic Neighbor added, group %s count %d", | |
3676 | peer->host, group->name, dncount); | |
3677 | ||
3678 | return peer; | |
3679 | } | |
3680 | ||
cc32742c | 3681 | static void peer_drop_dynamic_neighbor(struct peer *peer) |
d62a17ae | 3682 | { |
3683 | int dncount = -1; | |
cc32742c | 3684 | if (peer->group->bgp) { |
d62a17ae | 3685 | dncount = peer->group->bgp->dynamic_neighbors_count; |
3686 | if (dncount) | |
3687 | peer->group->bgp->dynamic_neighbors_count = --dncount; | |
3688 | } | |
3689 | if (bgp_debug_neighbor_events(peer)) | |
3690 | zlog_debug("%s dropped from group %s, count %d", peer->host, | |
3691 | peer->group->name, dncount); | |
3692 | } | |
3693 | ||
d62a17ae | 3694 | /* If peer is configured at least one address family return 1. */ |
3695 | int peer_active(struct peer *peer) | |
3696 | { | |
3697 | if (BGP_PEER_SU_UNSPEC(peer)) | |
3698 | return 0; | |
3699 | if (peer->afc[AFI_IP][SAFI_UNICAST] || peer->afc[AFI_IP][SAFI_MULTICAST] | |
3700 | || peer->afc[AFI_IP][SAFI_LABELED_UNICAST] | |
3701 | || peer->afc[AFI_IP][SAFI_MPLS_VPN] || peer->afc[AFI_IP][SAFI_ENCAP] | |
7c40bf39 | 3702 | || peer->afc[AFI_IP][SAFI_FLOWSPEC] |
d62a17ae | 3703 | || peer->afc[AFI_IP6][SAFI_UNICAST] |
3704 | || peer->afc[AFI_IP6][SAFI_MULTICAST] | |
3705 | || peer->afc[AFI_IP6][SAFI_LABELED_UNICAST] | |
3706 | || peer->afc[AFI_IP6][SAFI_MPLS_VPN] | |
3707 | || peer->afc[AFI_IP6][SAFI_ENCAP] | |
7c40bf39 | 3708 | || peer->afc[AFI_IP6][SAFI_FLOWSPEC] |
d62a17ae | 3709 | || peer->afc[AFI_L2VPN][SAFI_EVPN]) |
3710 | return 1; | |
3711 | return 0; | |
3712 | } | |
3713 | ||
3714 | /* If peer is negotiated at least one address family return 1. */ | |
3715 | int peer_active_nego(struct peer *peer) | |
3716 | { | |
3717 | if (peer->afc_nego[AFI_IP][SAFI_UNICAST] | |
3718 | || peer->afc_nego[AFI_IP][SAFI_MULTICAST] | |
3719 | || peer->afc_nego[AFI_IP][SAFI_LABELED_UNICAST] | |
3720 | || peer->afc_nego[AFI_IP][SAFI_MPLS_VPN] | |
3721 | || peer->afc_nego[AFI_IP][SAFI_ENCAP] | |
7c40bf39 | 3722 | || peer->afc_nego[AFI_IP][SAFI_FLOWSPEC] |
d62a17ae | 3723 | || peer->afc_nego[AFI_IP6][SAFI_UNICAST] |
3724 | || peer->afc_nego[AFI_IP6][SAFI_MULTICAST] | |
3725 | || peer->afc_nego[AFI_IP6][SAFI_LABELED_UNICAST] | |
3726 | || peer->afc_nego[AFI_IP6][SAFI_MPLS_VPN] | |
3727 | || peer->afc_nego[AFI_IP6][SAFI_ENCAP] | |
7c40bf39 | 3728 | || peer->afc_nego[AFI_IP6][SAFI_FLOWSPEC] |
d62a17ae | 3729 | || peer->afc_nego[AFI_L2VPN][SAFI_EVPN]) |
3730 | return 1; | |
3731 | return 0; | |
3732 | } | |
3733 | ||
dcc68b5e | 3734 | void peer_change_action(struct peer *peer, afi_t afi, safi_t safi, |
d62a17ae | 3735 | enum peer_change_type type) |
3736 | { | |
3737 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
3738 | return; | |
3739 | ||
3740 | if (peer->status != Established) | |
3741 | return; | |
3742 | ||
3743 | if (type == peer_change_reset) { | |
3744 | /* If we're resetting session, we've to delete both peer struct | |
3745 | */ | |
3746 | if ((peer->doppelganger) | |
3747 | && (peer->doppelganger->status != Deleted) | |
3748 | && (!CHECK_FLAG(peer->doppelganger->flags, | |
3749 | PEER_FLAG_CONFIG_NODE))) | |
3750 | peer_delete(peer->doppelganger); | |
3751 | ||
3752 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3753 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
3754 | } else if (type == peer_change_reset_in) { | |
3755 | if (CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_OLD_RCV) | |
3756 | || CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_NEW_RCV)) | |
3757 | bgp_route_refresh_send(peer, afi, safi, 0, 0, 0); | |
3758 | else { | |
3759 | if ((peer->doppelganger) | |
3760 | && (peer->doppelganger->status != Deleted) | |
3761 | && (!CHECK_FLAG(peer->doppelganger->flags, | |
3762 | PEER_FLAG_CONFIG_NODE))) | |
3763 | peer_delete(peer->doppelganger); | |
3764 | ||
3765 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3766 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
3767 | } | |
3768 | } else if (type == peer_change_reset_out) { | |
3769 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
3770 | bgp_announce_route(peer, afi, safi); | |
3771 | } | |
3772 | } | |
3773 | ||
3774 | struct peer_flag_action { | |
3775 | /* Peer's flag. */ | |
d7c0a89a | 3776 | uint32_t flag; |
d62a17ae | 3777 | |
3778 | /* This flag can be set for peer-group member. */ | |
d7c0a89a | 3779 | uint8_t not_for_member; |
d62a17ae | 3780 | |
3781 | /* Action when the flag is changed. */ | |
3782 | enum peer_change_type type; | |
d62a17ae | 3783 | }; |
3784 | ||
3785 | static const struct peer_flag_action peer_flag_action_list[] = { | |
3786 | {PEER_FLAG_PASSIVE, 0, peer_change_reset}, | |
3787 | {PEER_FLAG_SHUTDOWN, 0, peer_change_reset}, | |
3788 | {PEER_FLAG_DONT_CAPABILITY, 0, peer_change_none}, | |
3789 | {PEER_FLAG_OVERRIDE_CAPABILITY, 0, peer_change_none}, | |
3790 | {PEER_FLAG_STRICT_CAP_MATCH, 0, peer_change_none}, | |
3791 | {PEER_FLAG_DYNAMIC_CAPABILITY, 0, peer_change_reset}, | |
3792 | {PEER_FLAG_DISABLE_CONNECTED_CHECK, 0, peer_change_reset}, | |
3793 | {PEER_FLAG_CAPABILITY_ENHE, 0, peer_change_reset}, | |
47cbc09b | 3794 | {PEER_FLAG_ENFORCE_FIRST_AS, 0, peer_change_reset_in}, |
afad5ced | 3795 | {PEER_FLAG_IFPEER_V6ONLY, 0, peer_change_reset}, |
b90a8e13 PM |
3796 | {PEER_FLAG_ROUTEADV, 0, peer_change_none}, |
3797 | {PEER_FLAG_TIMER, 0, peer_change_none}, | |
3798 | {PEER_FLAG_TIMER_CONNECT, 0, peer_change_none}, | |
a14810f4 PM |
3799 | {PEER_FLAG_PASSWORD, 0, peer_change_none}, |
3800 | {PEER_FLAG_LOCAL_AS, 0, peer_change_none}, | |
3801 | {PEER_FLAG_LOCAL_AS_NO_PREPEND, 0, peer_change_none}, | |
3802 | {PEER_FLAG_LOCAL_AS_REPLACE_AS, 0, peer_change_none}, | |
3803 | {PEER_FLAG_UPDATE_SOURCE, 0, peer_change_none}, | |
d62a17ae | 3804 | {0, 0, 0}}; |
3805 | ||
3806 | static const struct peer_flag_action peer_af_flag_action_list[] = { | |
3807 | {PEER_FLAG_SEND_COMMUNITY, 1, peer_change_reset_out}, | |
3808 | {PEER_FLAG_SEND_EXT_COMMUNITY, 1, peer_change_reset_out}, | |
3809 | {PEER_FLAG_SEND_LARGE_COMMUNITY, 1, peer_change_reset_out}, | |
3810 | {PEER_FLAG_NEXTHOP_SELF, 1, peer_change_reset_out}, | |
3811 | {PEER_FLAG_REFLECTOR_CLIENT, 1, peer_change_reset}, | |
3812 | {PEER_FLAG_RSERVER_CLIENT, 1, peer_change_reset}, | |
3813 | {PEER_FLAG_SOFT_RECONFIG, 0, peer_change_reset_in}, | |
3814 | {PEER_FLAG_AS_PATH_UNCHANGED, 1, peer_change_reset_out}, | |
3815 | {PEER_FLAG_NEXTHOP_UNCHANGED, 1, peer_change_reset_out}, | |
3816 | {PEER_FLAG_MED_UNCHANGED, 1, peer_change_reset_out}, | |
598ce6bd | 3817 | {PEER_FLAG_DEFAULT_ORIGINATE, 0, peer_change_none}, |
d62a17ae | 3818 | {PEER_FLAG_REMOVE_PRIVATE_AS, 1, peer_change_reset_out}, |
3819 | {PEER_FLAG_ALLOWAS_IN, 0, peer_change_reset_in}, | |
3820 | {PEER_FLAG_ALLOWAS_IN_ORIGIN, 0, peer_change_reset_in}, | |
3821 | {PEER_FLAG_ORF_PREFIX_SM, 1, peer_change_reset}, | |
3822 | {PEER_FLAG_ORF_PREFIX_RM, 1, peer_change_reset}, | |
598ce6bd PM |
3823 | {PEER_FLAG_MAX_PREFIX, 0, peer_change_none}, |
3824 | {PEER_FLAG_MAX_PREFIX_WARNING, 0, peer_change_none}, | |
d62a17ae | 3825 | {PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED, 0, peer_change_reset_out}, |
3826 | {PEER_FLAG_FORCE_NEXTHOP_SELF, 1, peer_change_reset_out}, | |
3827 | {PEER_FLAG_REMOVE_PRIVATE_AS_ALL, 1, peer_change_reset_out}, | |
3828 | {PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE, 1, peer_change_reset_out}, | |
3829 | {PEER_FLAG_AS_OVERRIDE, 1, peer_change_reset_out}, | |
3830 | {PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE, 1, peer_change_reset_out}, | |
d62a17ae | 3831 | {PEER_FLAG_WEIGHT, 0, peer_change_reset_in}, |
3832 | {0, 0, 0}}; | |
3833 | ||
3834 | /* Proper action set. */ | |
3835 | static int peer_flag_action_set(const struct peer_flag_action *action_list, | |
3836 | int size, struct peer_flag_action *action, | |
d7c0a89a | 3837 | uint32_t flag) |
d62a17ae | 3838 | { |
3839 | int i; | |
3840 | int found = 0; | |
3841 | int reset_in = 0; | |
3842 | int reset_out = 0; | |
3843 | const struct peer_flag_action *match = NULL; | |
3844 | ||
3845 | /* Check peer's frag action. */ | |
3846 | for (i = 0; i < size; i++) { | |
3847 | match = &action_list[i]; | |
3848 | ||
3849 | if (match->flag == 0) | |
3850 | break; | |
3851 | ||
3852 | if (match->flag & flag) { | |
3853 | found = 1; | |
3854 | ||
3855 | if (match->type == peer_change_reset_in) | |
3856 | reset_in = 1; | |
3857 | if (match->type == peer_change_reset_out) | |
3858 | reset_out = 1; | |
3859 | if (match->type == peer_change_reset) { | |
3860 | reset_in = 1; | |
3861 | reset_out = 1; | |
3862 | } | |
3863 | if (match->not_for_member) | |
3864 | action->not_for_member = 1; | |
3865 | } | |
3866 | } | |
3867 | ||
3868 | /* Set peer clear type. */ | |
3869 | if (reset_in && reset_out) | |
3870 | action->type = peer_change_reset; | |
3871 | else if (reset_in) | |
3872 | action->type = peer_change_reset_in; | |
3873 | else if (reset_out) | |
3874 | action->type = peer_change_reset_out; | |
3875 | else | |
3876 | action->type = peer_change_none; | |
3877 | ||
3878 | return found; | |
3879 | } | |
3880 | ||
d7c0a89a | 3881 | static void peer_flag_modify_action(struct peer *peer, uint32_t flag) |
d62a17ae | 3882 | { |
3883 | if (flag == PEER_FLAG_SHUTDOWN) { | |
3884 | if (CHECK_FLAG(peer->flags, flag)) { | |
3885 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT)) | |
3886 | peer_nsf_stop(peer); | |
3887 | ||
3888 | UNSET_FLAG(peer->sflags, PEER_STATUS_PREFIX_OVERFLOW); | |
3889 | if (peer->t_pmax_restart) { | |
3890 | BGP_TIMER_OFF(peer->t_pmax_restart); | |
3891 | if (bgp_debug_neighbor_events(peer)) | |
3892 | zlog_debug( | |
3893 | "%s Maximum-prefix restart timer canceled", | |
3894 | peer->host); | |
3895 | } | |
3896 | ||
3897 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT)) | |
3898 | peer_nsf_stop(peer); | |
3899 | ||
3900 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
3901 | char *msg = peer->tx_shutdown_message; | |
3902 | size_t msglen; | |
3903 | ||
3904 | if (!msg && peer_group_active(peer)) | |
3905 | msg = peer->group->conf | |
3906 | ->tx_shutdown_message; | |
3907 | msglen = msg ? strlen(msg) : 0; | |
3908 | if (msglen > 128) | |
3909 | msglen = 128; | |
3910 | ||
3911 | if (msglen) { | |
d7c0a89a | 3912 | uint8_t msgbuf[129]; |
d62a17ae | 3913 | |
3914 | msgbuf[0] = msglen; | |
3915 | memcpy(msgbuf + 1, msg, msglen); | |
3916 | ||
3917 | bgp_notify_send_with_data( | |
3918 | peer, BGP_NOTIFY_CEASE, | |
3919 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN, | |
3920 | msgbuf, msglen + 1); | |
3921 | } else | |
3922 | bgp_notify_send( | |
3923 | peer, BGP_NOTIFY_CEASE, | |
3924 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN); | |
3925 | } else | |
3926 | bgp_session_reset(peer); | |
3927 | } else { | |
3928 | peer->v_start = BGP_INIT_START_TIMER; | |
3929 | BGP_EVENT_ADD(peer, BGP_Stop); | |
3930 | } | |
3931 | } else if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
3932 | if (flag == PEER_FLAG_DYNAMIC_CAPABILITY) | |
3933 | peer->last_reset = PEER_DOWN_CAPABILITY_CHANGE; | |
3934 | else if (flag == PEER_FLAG_PASSIVE) | |
3935 | peer->last_reset = PEER_DOWN_PASSIVE_CHANGE; | |
3936 | else if (flag == PEER_FLAG_DISABLE_CONNECTED_CHECK) | |
3937 | peer->last_reset = PEER_DOWN_MULTIHOP_CHANGE; | |
3938 | ||
3939 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3940 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
3941 | } else | |
3942 | bgp_session_reset(peer); | |
3943 | } | |
3944 | ||
3945 | /* Change specified peer flag. */ | |
d7c0a89a | 3946 | static int peer_flag_modify(struct peer *peer, uint32_t flag, int set) |
d62a17ae | 3947 | { |
3948 | int found; | |
3949 | int size; | |
9fb964de PM |
3950 | bool invert, member_invert; |
3951 | struct peer *member; | |
d62a17ae | 3952 | struct listnode *node, *nnode; |
3953 | struct peer_flag_action action; | |
3954 | ||
3955 | memset(&action, 0, sizeof(struct peer_flag_action)); | |
3956 | size = sizeof peer_flag_action_list / sizeof(struct peer_flag_action); | |
3957 | ||
9fb964de | 3958 | invert = CHECK_FLAG(peer->flags_invert, flag); |
d62a17ae | 3959 | found = peer_flag_action_set(peer_flag_action_list, size, &action, |
3960 | flag); | |
3961 | ||
9fb964de | 3962 | /* Abort if no flag action exists. */ |
d62a17ae | 3963 | if (!found) |
3964 | return BGP_ERR_INVALID_FLAG; | |
3965 | ||
9fb964de | 3966 | /* Check for flag conflict: STRICT_CAP_MATCH && OVERRIDE_CAPABILITY */ |
d62a17ae | 3967 | if (set && CHECK_FLAG(peer->flags | flag, PEER_FLAG_STRICT_CAP_MATCH) |
3968 | && CHECK_FLAG(peer->flags | flag, PEER_FLAG_OVERRIDE_CAPABILITY)) | |
3969 | return BGP_ERR_PEER_FLAG_CONFLICT; | |
3970 | ||
9fb964de | 3971 | /* Handle flag updates where desired state matches current state. */ |
d62a17ae | 3972 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
9fb964de PM |
3973 | if (set && CHECK_FLAG(peer->flags, flag)) { |
3974 | COND_FLAG(peer->flags_override, flag, !invert); | |
d62a17ae | 3975 | return 0; |
9fb964de PM |
3976 | } |
3977 | ||
3978 | if (!set && !CHECK_FLAG(peer->flags, flag)) { | |
3979 | COND_FLAG(peer->flags_override, flag, invert); | |
d62a17ae | 3980 | return 0; |
9fb964de | 3981 | } |
d62a17ae | 3982 | } |
3983 | ||
9fb964de PM |
3984 | /* Inherit from peer-group or set/unset flags accordingly. */ |
3985 | if (peer_group_active(peer) && set == invert) | |
3986 | peer_flag_inherit(peer, flag); | |
d62a17ae | 3987 | else |
9fb964de | 3988 | COND_FLAG(peer->flags, flag, set); |
d62a17ae | 3989 | |
9fb964de | 3990 | /* Check if handling a regular peer. */ |
d62a17ae | 3991 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
9fb964de PM |
3992 | /* Update flag override state accordingly. */ |
3993 | COND_FLAG(peer->flags_override, flag, set != invert); | |
3994 | ||
3995 | /* Execute flag action on peer. */ | |
d62a17ae | 3996 | if (action.type == peer_change_reset) |
3997 | peer_flag_modify_action(peer, flag); | |
3998 | ||
9fb964de | 3999 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 4000 | return 0; |
4001 | } | |
4002 | ||
1ea03b90 DS |
4003 | if (set && flag == PEER_FLAG_CAPABILITY_ENHE) |
4004 | bgp_nht_register_enhe_capability_interfaces(peer); | |
4005 | ||
9fb964de PM |
4006 | /* |
4007 | * Update peer-group members, unless they are explicitely overriding | |
4008 | * peer-group configuration. | |
4009 | */ | |
4010 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4011 | /* Skip peers with overridden configuration. */ | |
4012 | if (CHECK_FLAG(member->flags_override, flag)) | |
4013 | continue; | |
d62a17ae | 4014 | |
527de3dc PM |
4015 | /* Check if only member without group is inverted. */ |
4016 | member_invert = | |
4017 | CHECK_FLAG(member->flags_invert, flag) && !invert; | |
d62a17ae | 4018 | |
9fb964de PM |
4019 | /* Skip peers with equivalent configuration. */ |
4020 | if (set != member_invert && CHECK_FLAG(member->flags, flag)) | |
d62a17ae | 4021 | continue; |
4022 | ||
9fb964de | 4023 | if (set == member_invert && !CHECK_FLAG(member->flags, flag)) |
d62a17ae | 4024 | continue; |
4025 | ||
9fb964de PM |
4026 | /* Update flag on peer-group member. */ |
4027 | COND_FLAG(member->flags, flag, set != member_invert); | |
d62a17ae | 4028 | |
1ea03b90 DS |
4029 | if (set && flag == PEER_FLAG_CAPABILITY_ENHE) |
4030 | bgp_nht_register_enhe_capability_interfaces(member); | |
4031 | ||
9fb964de | 4032 | /* Execute flag action on peer-group member. */ |
d62a17ae | 4033 | if (action.type == peer_change_reset) |
9fb964de | 4034 | peer_flag_modify_action(member, flag); |
d62a17ae | 4035 | } |
9fb964de | 4036 | |
d62a17ae | 4037 | return 0; |
4038 | } | |
4039 | ||
d7c0a89a | 4040 | int peer_flag_set(struct peer *peer, uint32_t flag) |
d62a17ae | 4041 | { |
4042 | return peer_flag_modify(peer, flag, 1); | |
4043 | } | |
4044 | ||
d7c0a89a | 4045 | int peer_flag_unset(struct peer *peer, uint32_t flag) |
d62a17ae | 4046 | { |
4047 | return peer_flag_modify(peer, flag, 0); | |
4048 | } | |
4049 | ||
4050 | static int peer_af_flag_modify(struct peer *peer, afi_t afi, safi_t safi, | |
27c05d4d | 4051 | uint32_t flag, bool set) |
d62a17ae | 4052 | { |
4053 | int found; | |
4054 | int size; | |
527de3dc | 4055 | bool invert, member_invert; |
527de3dc | 4056 | struct peer *member; |
d62a17ae | 4057 | struct listnode *node, *nnode; |
d62a17ae | 4058 | struct peer_flag_action action; |
d62a17ae | 4059 | |
4060 | memset(&action, 0, sizeof(struct peer_flag_action)); | |
4061 | size = sizeof peer_af_flag_action_list | |
4062 | / sizeof(struct peer_flag_action); | |
4063 | ||
27c05d4d | 4064 | invert = CHECK_FLAG(peer->af_flags_invert[afi][safi], flag); |
d62a17ae | 4065 | found = peer_flag_action_set(peer_af_flag_action_list, size, &action, |
4066 | flag); | |
4067 | ||
527de3dc | 4068 | /* Abort if flag action exists. */ |
d62a17ae | 4069 | if (!found) |
4070 | return BGP_ERR_INVALID_FLAG; | |
4071 | ||
4072 | /* Special check for reflector client. */ | |
4073 | if (flag & PEER_FLAG_REFLECTOR_CLIENT | |
4074 | && peer_sort(peer) != BGP_PEER_IBGP) | |
4075 | return BGP_ERR_NOT_INTERNAL_PEER; | |
4076 | ||
4077 | /* Special check for remove-private-AS. */ | |
4078 | if (flag & PEER_FLAG_REMOVE_PRIVATE_AS | |
4079 | && peer_sort(peer) == BGP_PEER_IBGP) | |
4080 | return BGP_ERR_REMOVE_PRIVATE_AS; | |
4081 | ||
4082 | /* as-override is not allowed for IBGP peers */ | |
4083 | if (flag & PEER_FLAG_AS_OVERRIDE && peer_sort(peer) == BGP_PEER_IBGP) | |
4084 | return BGP_ERR_AS_OVERRIDE; | |
4085 | ||
527de3dc | 4086 | /* Handle flag updates where desired state matches current state. */ |
d62a17ae | 4087 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
598ce6bd | 4088 | if (set && CHECK_FLAG(peer->af_flags[afi][safi], flag)) { |
527de3dc PM |
4089 | COND_FLAG(peer->af_flags_override[afi][safi], flag, |
4090 | !invert); | |
d62a17ae | 4091 | return 0; |
598ce6bd PM |
4092 | } |
4093 | ||
4094 | if (!set && !CHECK_FLAG(peer->af_flags[afi][safi], flag)) { | |
527de3dc PM |
4095 | COND_FLAG(peer->af_flags_override[afi][safi], flag, |
4096 | invert); | |
d62a17ae | 4097 | return 0; |
598ce6bd | 4098 | } |
d62a17ae | 4099 | } |
4100 | ||
ace295a9 MK |
4101 | /* |
4102 | * For EVPN we implicitly set the NEXTHOP_UNCHANGED flag, | |
4103 | * if we are setting/unsetting flags which conflict with this flag | |
4104 | * handle accordingly | |
4105 | */ | |
4106 | if (afi == AFI_L2VPN && safi == SAFI_EVPN) { | |
4107 | if (set) { | |
4108 | ||
3518f352 DS |
4109 | /* |
4110 | * if we are setting NEXTHOP_SELF, we need to unset the | |
4111 | * NEXTHOP_UNCHANGED flag | |
4112 | */ | |
ace295a9 MK |
4113 | if (CHECK_FLAG(flag, PEER_FLAG_NEXTHOP_SELF) || |
4114 | CHECK_FLAG(flag, PEER_FLAG_FORCE_NEXTHOP_SELF)) | |
4115 | UNSET_FLAG(peer->af_flags[afi][safi], | |
4116 | PEER_FLAG_NEXTHOP_UNCHANGED); | |
4117 | } else { | |
4118 | ||
3518f352 DS |
4119 | /* |
4120 | * if we are unsetting NEXTHOP_SELF, we need to set the | |
ace295a9 MK |
4121 | * NEXTHOP_UNCHANGED flag to reset the defaults for EVPN |
4122 | */ | |
4123 | if (CHECK_FLAG(flag, PEER_FLAG_NEXTHOP_SELF) || | |
4124 | CHECK_FLAG(flag, PEER_FLAG_FORCE_NEXTHOP_SELF)) | |
4125 | SET_FLAG(peer->af_flags[afi][safi], | |
4126 | PEER_FLAG_NEXTHOP_UNCHANGED); | |
4127 | } | |
4128 | } | |
4129 | ||
527de3dc PM |
4130 | /* Inherit from peer-group or set/unset flags accordingly. */ |
4131 | if (peer_group_active(peer) && set == invert) | |
4132 | peer_af_flag_inherit(peer, afi, safi, flag); | |
4133 | else | |
4134 | COND_FLAG(peer->af_flags[afi][safi], flag, set); | |
d62a17ae | 4135 | |
4136 | /* Execute action when peer is established. */ | |
4137 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP) | |
4138 | && peer->status == Established) { | |
4139 | if (!set && flag == PEER_FLAG_SOFT_RECONFIG) | |
4140 | bgp_clear_adj_in(peer, afi, safi); | |
4141 | else { | |
4142 | if (flag == PEER_FLAG_REFLECTOR_CLIENT) | |
4143 | peer->last_reset = PEER_DOWN_RR_CLIENT_CHANGE; | |
4144 | else if (flag == PEER_FLAG_RSERVER_CLIENT) | |
4145 | peer->last_reset = PEER_DOWN_RS_CLIENT_CHANGE; | |
4146 | else if (flag == PEER_FLAG_ORF_PREFIX_SM) | |
4147 | peer->last_reset = PEER_DOWN_CAPABILITY_CHANGE; | |
4148 | else if (flag == PEER_FLAG_ORF_PREFIX_RM) | |
4149 | peer->last_reset = PEER_DOWN_CAPABILITY_CHANGE; | |
4150 | ||
4151 | peer_change_action(peer, afi, safi, action.type); | |
4152 | } | |
4153 | } | |
4154 | ||
527de3dc PM |
4155 | /* Check if handling a regular peer. */ |
4156 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4157 | COND_FLAG(peer->af_flags_override[afi][safi], flag, | |
4158 | set != invert); | |
4159 | } else { | |
4160 | /* | |
4161 | * Update peer-group members, unless they are explicitely | |
4162 | * overriding peer-group configuration. | |
4163 | */ | |
4164 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, | |
4165 | member)) { | |
4166 | /* Skip peers with overridden configuration. */ | |
4167 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
598ce6bd PM |
4168 | flag)) |
4169 | continue; | |
4170 | ||
527de3dc PM |
4171 | /* Check if only member without group is inverted. */ |
4172 | member_invert = | |
4173 | CHECK_FLAG(member->af_flags_invert[afi][safi], | |
4174 | flag) | |
4175 | && !invert; | |
4176 | ||
4177 | /* Skip peers with equivalent configuration. */ | |
4178 | if (set != member_invert | |
4179 | && CHECK_FLAG(member->af_flags[afi][safi], flag)) | |
d62a17ae | 4180 | continue; |
4181 | ||
527de3dc PM |
4182 | if (set == member_invert |
4183 | && !CHECK_FLAG(member->af_flags[afi][safi], flag)) | |
d62a17ae | 4184 | continue; |
4185 | ||
527de3dc PM |
4186 | /* Update flag on peer-group member. */ |
4187 | COND_FLAG(member->af_flags[afi][safi], flag, | |
4188 | set != member_invert); | |
d62a17ae | 4189 | |
527de3dc PM |
4190 | /* Execute flag action on peer-group member. */ |
4191 | if (member->status == Established) { | |
d62a17ae | 4192 | if (!set && flag == PEER_FLAG_SOFT_RECONFIG) |
527de3dc | 4193 | bgp_clear_adj_in(member, afi, safi); |
d62a17ae | 4194 | else { |
4195 | if (flag == PEER_FLAG_REFLECTOR_CLIENT) | |
527de3dc | 4196 | member->last_reset = |
d62a17ae | 4197 | PEER_DOWN_RR_CLIENT_CHANGE; |
4198 | else if (flag | |
4199 | == PEER_FLAG_RSERVER_CLIENT) | |
527de3dc | 4200 | member->last_reset = |
d62a17ae | 4201 | PEER_DOWN_RS_CLIENT_CHANGE; |
4202 | else if (flag | |
4203 | == PEER_FLAG_ORF_PREFIX_SM) | |
527de3dc | 4204 | member->last_reset = |
d62a17ae | 4205 | PEER_DOWN_CAPABILITY_CHANGE; |
4206 | else if (flag | |
4207 | == PEER_FLAG_ORF_PREFIX_RM) | |
527de3dc | 4208 | member->last_reset = |
d62a17ae | 4209 | PEER_DOWN_CAPABILITY_CHANGE; |
4210 | ||
527de3dc | 4211 | peer_change_action(member, afi, safi, |
d62a17ae | 4212 | action.type); |
4213 | } | |
4214 | } | |
4215 | } | |
4216 | } | |
4217 | ||
d62a17ae | 4218 | return 0; |
4219 | } | |
4220 | ||
d7c0a89a | 4221 | int peer_af_flag_set(struct peer *peer, afi_t afi, safi_t safi, uint32_t flag) |
d62a17ae | 4222 | { |
4223 | return peer_af_flag_modify(peer, afi, safi, flag, 1); | |
4224 | } | |
4225 | ||
d7c0a89a | 4226 | int peer_af_flag_unset(struct peer *peer, afi_t afi, safi_t safi, uint32_t flag) |
d62a17ae | 4227 | { |
4228 | return peer_af_flag_modify(peer, afi, safi, flag, 0); | |
4229 | } | |
4230 | ||
4231 | ||
4232 | int peer_tx_shutdown_message_set(struct peer *peer, const char *msg) | |
4233 | { | |
4234 | XFREE(MTYPE_PEER_TX_SHUTDOWN_MSG, peer->tx_shutdown_message); | |
4235 | peer->tx_shutdown_message = | |
4236 | msg ? XSTRDUP(MTYPE_PEER_TX_SHUTDOWN_MSG, msg) : NULL; | |
4237 | return 0; | |
4238 | } | |
4239 | ||
4240 | int peer_tx_shutdown_message_unset(struct peer *peer) | |
4241 | { | |
4242 | XFREE(MTYPE_PEER_TX_SHUTDOWN_MSG, peer->tx_shutdown_message); | |
4243 | return 0; | |
4244 | } | |
4245 | ||
4246 | ||
4247 | /* EBGP multihop configuration. */ | |
4248 | int peer_ebgp_multihop_set(struct peer *peer, int ttl) | |
4249 | { | |
4250 | struct peer_group *group; | |
4251 | struct listnode *node, *nnode; | |
4252 | struct peer *peer1; | |
4253 | ||
4254 | if (peer->sort == BGP_PEER_IBGP || peer->conf_if) | |
4255 | return 0; | |
4256 | ||
4257 | /* see comment in peer_ttl_security_hops_set() */ | |
4258 | if (ttl != MAXTTL) { | |
4259 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4260 | group = peer->group; | |
4261 | if (group->conf->gtsm_hops != 0) | |
4262 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
4263 | ||
4264 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, | |
4265 | peer1)) { | |
4266 | if (peer1->sort == BGP_PEER_IBGP) | |
4267 | continue; | |
4268 | ||
4269 | if (peer1->gtsm_hops != 0) | |
4270 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
4271 | } | |
4272 | } else { | |
4273 | if (peer->gtsm_hops != 0) | |
4274 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
4275 | } | |
4276 | } | |
4277 | ||
4278 | peer->ttl = ttl; | |
4279 | ||
4280 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4281 | if (peer->fd >= 0 && peer->sort != BGP_PEER_IBGP) { | |
4282 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
4283 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4284 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4285 | else | |
4286 | bgp_session_reset(peer); | |
4287 | } | |
4288 | } else { | |
4289 | group = peer->group; | |
4290 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
4291 | if (peer->sort == BGP_PEER_IBGP) | |
4292 | continue; | |
4293 | ||
4294 | peer->ttl = group->conf->ttl; | |
4295 | ||
4296 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
4297 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4298 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4299 | else | |
4300 | bgp_session_reset(peer); | |
4301 | } | |
4302 | } | |
4303 | return 0; | |
4304 | } | |
4305 | ||
4306 | int peer_ebgp_multihop_unset(struct peer *peer) | |
4307 | { | |
4308 | struct peer_group *group; | |
4309 | struct listnode *node, *nnode; | |
4310 | ||
4311 | if (peer->sort == BGP_PEER_IBGP) | |
4312 | return 0; | |
4313 | ||
4314 | if (peer->gtsm_hops != 0 && peer->ttl != MAXTTL) | |
4315 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
4316 | ||
4317 | if (peer_group_active(peer)) | |
4318 | peer->ttl = peer->group->conf->ttl; | |
4319 | else | |
a0903cd2 | 4320 | peer->ttl = BGP_DEFAULT_TTL; |
d62a17ae | 4321 | |
4322 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4323 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
4324 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4325 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4326 | else | |
4327 | bgp_session_reset(peer); | |
4328 | } else { | |
4329 | group = peer->group; | |
4330 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
4331 | if (peer->sort == BGP_PEER_IBGP) | |
4332 | continue; | |
4333 | ||
a0903cd2 | 4334 | peer->ttl = BGP_DEFAULT_TTL; |
d62a17ae | 4335 | |
4336 | if (peer->fd >= 0) { | |
4337 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
4338 | bgp_notify_send( | |
4339 | peer, BGP_NOTIFY_CEASE, | |
4340 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4341 | else | |
4342 | bgp_session_reset(peer); | |
4343 | } | |
4344 | } | |
4345 | } | |
4346 | return 0; | |
4347 | } | |
4348 | ||
4349 | /* Neighbor description. */ | |
4350 | int peer_description_set(struct peer *peer, const char *desc) | |
4351 | { | |
0a22ddfb | 4352 | XFREE(MTYPE_PEER_DESC, peer->desc); |
d62a17ae | 4353 | |
4354 | peer->desc = XSTRDUP(MTYPE_PEER_DESC, desc); | |
4355 | ||
4356 | return 0; | |
4357 | } | |
4358 | ||
4359 | int peer_description_unset(struct peer *peer) | |
4360 | { | |
0a22ddfb | 4361 | XFREE(MTYPE_PEER_DESC, peer->desc); |
d62a17ae | 4362 | |
4363 | peer->desc = NULL; | |
4364 | ||
4365 | return 0; | |
4366 | } | |
4367 | ||
4368 | /* Neighbor update-source. */ | |
4369 | int peer_update_source_if_set(struct peer *peer, const char *ifname) | |
4370 | { | |
a14810f4 | 4371 | struct peer *member; |
d62a17ae | 4372 | struct listnode *node, *nnode; |
4373 | ||
a14810f4 PM |
4374 | /* Set flag and configuration on peer. */ |
4375 | peer_flag_set(peer, PEER_FLAG_UPDATE_SOURCE); | |
d62a17ae | 4376 | if (peer->update_if) { |
a14810f4 | 4377 | if (strcmp(peer->update_if, ifname) == 0) |
d62a17ae | 4378 | return 0; |
d62a17ae | 4379 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); |
d62a17ae | 4380 | } |
d62a17ae | 4381 | peer->update_if = XSTRDUP(MTYPE_PEER_UPDATE_SOURCE, ifname); |
a14810f4 PM |
4382 | sockunion_free(peer->update_source); |
4383 | peer->update_source = NULL; | |
d62a17ae | 4384 | |
a14810f4 | 4385 | /* Check if handling a regular peer. */ |
d62a17ae | 4386 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 4387 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 4388 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
4389 | peer->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4390 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4391 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4392 | } else | |
4393 | bgp_session_reset(peer); | |
a14810f4 PM |
4394 | |
4395 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 4396 | return 0; |
4397 | } | |
4398 | ||
a14810f4 PM |
4399 | /* |
4400 | * Set flag and configuration on all peer-group members, unless they are | |
4401 | * explicitely overriding peer-group configuration. | |
4402 | */ | |
4403 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4404 | /* Skip peers with overridden configuration. */ | |
4405 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_UPDATE_SOURCE)) | |
4406 | continue; | |
d62a17ae | 4407 | |
a14810f4 PM |
4408 | /* Skip peers with the same configuration. */ |
4409 | if (member->update_if) { | |
4410 | if (strcmp(member->update_if, ifname) == 0) | |
4411 | continue; | |
4412 | XFREE(MTYPE_PEER_UPDATE_SOURCE, member->update_if); | |
d62a17ae | 4413 | } |
4414 | ||
a14810f4 PM |
4415 | /* Set flag and configuration on peer-group member. */ |
4416 | SET_FLAG(member->flags, PEER_FLAG_UPDATE_SOURCE); | |
4417 | member->update_if = XSTRDUP(MTYPE_PEER_UPDATE_SOURCE, ifname); | |
4418 | sockunion_free(member->update_source); | |
4419 | member->update_source = NULL; | |
4420 | ||
4421 | /* Send notification or reset peer depending on state. */ | |
4422 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) { | |
4423 | member->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4424 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 4425 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
4426 | } else | |
a14810f4 | 4427 | bgp_session_reset(member); |
d62a17ae | 4428 | } |
a14810f4 | 4429 | |
d62a17ae | 4430 | return 0; |
4431 | } | |
4432 | ||
4433 | int peer_update_source_addr_set(struct peer *peer, const union sockunion *su) | |
4434 | { | |
a14810f4 | 4435 | struct peer *member; |
d62a17ae | 4436 | struct listnode *node, *nnode; |
4437 | ||
a14810f4 PM |
4438 | /* Set flag and configuration on peer. */ |
4439 | peer_flag_set(peer, PEER_FLAG_UPDATE_SOURCE); | |
d62a17ae | 4440 | if (peer->update_source) { |
a14810f4 | 4441 | if (sockunion_cmp(peer->update_source, su) == 0) |
d62a17ae | 4442 | return 0; |
4443 | sockunion_free(peer->update_source); | |
d62a17ae | 4444 | } |
d62a17ae | 4445 | peer->update_source = sockunion_dup(su); |
a14810f4 | 4446 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); |
d62a17ae | 4447 | |
a14810f4 | 4448 | /* Check if handling a regular peer. */ |
d62a17ae | 4449 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 4450 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 4451 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
4452 | peer->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4453 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4454 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4455 | } else | |
4456 | bgp_session_reset(peer); | |
a14810f4 PM |
4457 | |
4458 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 4459 | return 0; |
4460 | } | |
4461 | ||
a14810f4 PM |
4462 | /* |
4463 | * Set flag and configuration on all peer-group members, unless they are | |
4464 | * explicitely overriding peer-group configuration. | |
4465 | */ | |
4466 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4467 | /* Skip peers with overridden configuration. */ | |
4468 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_UPDATE_SOURCE)) | |
4469 | continue; | |
d62a17ae | 4470 | |
a14810f4 PM |
4471 | /* Skip peers with the same configuration. */ |
4472 | if (member->update_source) { | |
4473 | if (sockunion_cmp(member->update_source, su) == 0) | |
4474 | continue; | |
4475 | sockunion_free(member->update_source); | |
d62a17ae | 4476 | } |
4477 | ||
a14810f4 PM |
4478 | /* Set flag and configuration on peer-group member. */ |
4479 | SET_FLAG(member->flags, PEER_FLAG_UPDATE_SOURCE); | |
4480 | member->update_source = sockunion_dup(su); | |
4481 | XFREE(MTYPE_PEER_UPDATE_SOURCE, member->update_if); | |
4482 | ||
4483 | /* Send notification or reset peer depending on state. */ | |
4484 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) { | |
4485 | member->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4486 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 4487 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
4488 | } else | |
a14810f4 | 4489 | bgp_session_reset(member); |
d62a17ae | 4490 | } |
a14810f4 | 4491 | |
d62a17ae | 4492 | return 0; |
4493 | } | |
4494 | ||
4495 | int peer_update_source_unset(struct peer *peer) | |
4496 | { | |
a14810f4 | 4497 | struct peer *member; |
d62a17ae | 4498 | struct listnode *node, *nnode; |
4499 | ||
a14810f4 | 4500 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_UPDATE_SOURCE)) |
d62a17ae | 4501 | return 0; |
4502 | ||
a14810f4 PM |
4503 | /* Inherit configuration from peer-group if peer is member. */ |
4504 | if (peer_group_active(peer)) { | |
4505 | peer_flag_inherit(peer, PEER_FLAG_UPDATE_SOURCE); | |
4506 | PEER_SU_ATTR_INHERIT(peer, peer->group, update_source); | |
4507 | PEER_STR_ATTR_INHERIT(peer, peer->group, update_if, | |
4508 | MTYPE_PEER_UPDATE_SOURCE); | |
4509 | } else { | |
4510 | /* Otherwise remove flag and configuration from peer. */ | |
4511 | peer_flag_unset(peer, PEER_FLAG_UPDATE_SOURCE); | |
d62a17ae | 4512 | sockunion_free(peer->update_source); |
4513 | peer->update_source = NULL; | |
d62a17ae | 4514 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); |
d62a17ae | 4515 | } |
4516 | ||
a14810f4 | 4517 | /* Check if handling a regular peer. */ |
d62a17ae | 4518 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 4519 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 4520 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
4521 | peer->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4522 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4523 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4524 | } else | |
4525 | bgp_session_reset(peer); | |
a14810f4 PM |
4526 | |
4527 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 4528 | return 0; |
4529 | } | |
4530 | ||
a14810f4 PM |
4531 | /* |
4532 | * Set flag and configuration on all peer-group members, unless they are | |
4533 | * explicitely overriding peer-group configuration. | |
4534 | */ | |
4535 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4536 | /* Skip peers with overridden configuration. */ | |
4537 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_UPDATE_SOURCE)) | |
d62a17ae | 4538 | continue; |
4539 | ||
a14810f4 PM |
4540 | /* Skip peers with the same configuration. */ |
4541 | if (!CHECK_FLAG(member->flags, PEER_FLAG_UPDATE_SOURCE) | |
4542 | && !member->update_source && !member->update_if) | |
4543 | continue; | |
d62a17ae | 4544 | |
a14810f4 PM |
4545 | /* Remove flag and configuration on peer-group member. */ |
4546 | UNSET_FLAG(member->flags, PEER_FLAG_UPDATE_SOURCE); | |
4547 | sockunion_free(member->update_source); | |
4548 | member->update_source = NULL; | |
4549 | XFREE(MTYPE_PEER_UPDATE_SOURCE, member->update_if); | |
4550 | ||
4551 | /* Send notification or reset peer depending on state. */ | |
4552 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) { | |
4553 | member->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4554 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 4555 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
4556 | } else | |
a14810f4 | 4557 | bgp_session_reset(member); |
d62a17ae | 4558 | } |
a14810f4 | 4559 | |
d62a17ae | 4560 | return 0; |
4561 | } | |
4562 | ||
4563 | int peer_default_originate_set(struct peer *peer, afi_t afi, safi_t safi, | |
1de27621 | 4564 | const char *rmap, struct route_map *route_map) |
d62a17ae | 4565 | { |
598ce6bd | 4566 | struct peer *member; |
d62a17ae | 4567 | struct listnode *node, *nnode; |
4568 | ||
598ce6bd PM |
4569 | /* Set flag and configuration on peer. */ |
4570 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_DEFAULT_ORIGINATE); | |
4571 | if (rmap) { | |
4572 | if (!peer->default_rmap[afi][safi].name | |
4573 | || strcmp(rmap, peer->default_rmap[afi][safi].name) != 0) { | |
d62a17ae | 4574 | if (peer->default_rmap[afi][safi].name) |
4575 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
4576 | peer->default_rmap[afi][safi].name); | |
598ce6bd | 4577 | |
b4897fa5 | 4578 | route_map_counter_decrement(peer->default_rmap[afi][safi].map); |
d62a17ae | 4579 | peer->default_rmap[afi][safi].name = |
4580 | XSTRDUP(MTYPE_ROUTE_MAP_NAME, rmap); | |
1de27621 | 4581 | peer->default_rmap[afi][safi].map = route_map; |
b4897fa5 | 4582 | route_map_counter_increment(route_map); |
d62a17ae | 4583 | } |
598ce6bd PM |
4584 | } else if (!rmap) { |
4585 | if (peer->default_rmap[afi][safi].name) | |
4586 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
4587 | peer->default_rmap[afi][safi].name); | |
4588 | ||
b4897fa5 | 4589 | route_map_counter_decrement(peer->default_rmap[afi][safi].map); |
598ce6bd PM |
4590 | peer->default_rmap[afi][safi].name = NULL; |
4591 | peer->default_rmap[afi][safi].map = NULL; | |
d62a17ae | 4592 | } |
4593 | ||
598ce6bd | 4594 | /* Check if handling a regular peer. */ |
d62a17ae | 4595 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
598ce6bd | 4596 | /* Update peer route announcements. */ |
d62a17ae | 4597 | if (peer->status == Established && peer->afc_nego[afi][safi]) { |
4598 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
4599 | bgp_default_originate(peer, afi, safi, 0); | |
4600 | bgp_announce_route(peer, afi, safi); | |
4601 | } | |
598ce6bd PM |
4602 | |
4603 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 4604 | return 0; |
4605 | } | |
4606 | ||
598ce6bd PM |
4607 | /* |
4608 | * Set flag and configuration on all peer-group members, unless they are | |
4609 | * explicitely overriding peer-group configuration. | |
4610 | */ | |
4611 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4612 | /* Skip peers with overridden configuration. */ | |
4613 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
4614 | PEER_FLAG_DEFAULT_ORIGINATE)) | |
4615 | continue; | |
d62a17ae | 4616 | |
598ce6bd PM |
4617 | /* Set flag and configuration on peer-group member. */ |
4618 | SET_FLAG(member->af_flags[afi][safi], | |
4619 | PEER_FLAG_DEFAULT_ORIGINATE); | |
d62a17ae | 4620 | if (rmap) { |
598ce6bd | 4621 | if (member->default_rmap[afi][safi].name) |
d62a17ae | 4622 | XFREE(MTYPE_ROUTE_MAP_NAME, |
598ce6bd | 4623 | member->default_rmap[afi][safi].name); |
b4897fa5 | 4624 | route_map_counter_decrement( |
4625 | member->default_rmap[afi][safi].map); | |
598ce6bd | 4626 | member->default_rmap[afi][safi].name = |
d62a17ae | 4627 | XSTRDUP(MTYPE_ROUTE_MAP_NAME, rmap); |
1de27621 | 4628 | member->default_rmap[afi][safi].map = route_map; |
b4897fa5 | 4629 | route_map_counter_increment(route_map); |
d62a17ae | 4630 | } |
4631 | ||
598ce6bd PM |
4632 | /* Update peer route announcements. */ |
4633 | if (member->status == Established | |
4634 | && member->afc_nego[afi][safi]) { | |
4635 | update_group_adjust_peer( | |
4636 | peer_af_find(member, afi, safi)); | |
4637 | bgp_default_originate(member, afi, safi, 0); | |
4638 | bgp_announce_route(member, afi, safi); | |
d62a17ae | 4639 | } |
4640 | } | |
598ce6bd | 4641 | |
d62a17ae | 4642 | return 0; |
4643 | } | |
4644 | ||
4645 | int peer_default_originate_unset(struct peer *peer, afi_t afi, safi_t safi) | |
4646 | { | |
598ce6bd | 4647 | struct peer *member; |
d62a17ae | 4648 | struct listnode *node, *nnode; |
4649 | ||
598ce6bd PM |
4650 | /* Inherit configuration from peer-group if peer is member. */ |
4651 | if (peer_group_active(peer)) { | |
4652 | peer_af_flag_inherit(peer, afi, safi, | |
4653 | PEER_FLAG_DEFAULT_ORIGINATE); | |
e7103a96 PM |
4654 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
4655 | default_rmap[afi][safi].name, | |
4656 | MTYPE_ROUTE_MAP_NAME); | |
4657 | PEER_ATTR_INHERIT(peer, peer->group, | |
4658 | default_rmap[afi][safi].map); | |
598ce6bd PM |
4659 | } else { |
4660 | /* Otherwise remove flag and configuration from peer. */ | |
4661 | peer_af_flag_unset(peer, afi, safi, | |
4662 | PEER_FLAG_DEFAULT_ORIGINATE); | |
d62a17ae | 4663 | if (peer->default_rmap[afi][safi].name) |
4664 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
4665 | peer->default_rmap[afi][safi].name); | |
b4897fa5 | 4666 | route_map_counter_decrement(peer->default_rmap[afi][safi].map); |
d62a17ae | 4667 | peer->default_rmap[afi][safi].name = NULL; |
4668 | peer->default_rmap[afi][safi].map = NULL; | |
4669 | } | |
4670 | ||
598ce6bd | 4671 | /* Check if handling a regular peer. */ |
d62a17ae | 4672 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
598ce6bd | 4673 | /* Update peer route announcements. */ |
d62a17ae | 4674 | if (peer->status == Established && peer->afc_nego[afi][safi]) { |
4675 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
4676 | bgp_default_originate(peer, afi, safi, 1); | |
4677 | bgp_announce_route(peer, afi, safi); | |
4678 | } | |
598ce6bd PM |
4679 | |
4680 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 4681 | return 0; |
4682 | } | |
4683 | ||
598ce6bd PM |
4684 | /* |
4685 | * Remove flag and configuration from all peer-group members, unless | |
4686 | * they are explicitely overriding peer-group configuration. | |
4687 | */ | |
4688 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4689 | /* Skip peers with overridden configuration. */ | |
4690 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
4691 | PEER_FLAG_DEFAULT_ORIGINATE)) | |
4692 | continue; | |
4693 | ||
4694 | /* Remove flag and configuration on peer-group member. */ | |
d62a17ae | 4695 | UNSET_FLAG(peer->af_flags[afi][safi], |
4696 | PEER_FLAG_DEFAULT_ORIGINATE); | |
d62a17ae | 4697 | if (peer->default_rmap[afi][safi].name) |
4698 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
4699 | peer->default_rmap[afi][safi].name); | |
b4897fa5 | 4700 | route_map_counter_decrement(peer->default_rmap[afi][safi].map); |
d62a17ae | 4701 | peer->default_rmap[afi][safi].name = NULL; |
4702 | peer->default_rmap[afi][safi].map = NULL; | |
4703 | ||
598ce6bd | 4704 | /* Update peer route announcements. */ |
d62a17ae | 4705 | if (peer->status == Established && peer->afc_nego[afi][safi]) { |
4706 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
4707 | bgp_default_originate(peer, afi, safi, 1); | |
4708 | bgp_announce_route(peer, afi, safi); | |
4709 | } | |
4710 | } | |
598ce6bd | 4711 | |
d62a17ae | 4712 | return 0; |
4713 | } | |
4714 | ||
d7c0a89a | 4715 | int peer_port_set(struct peer *peer, uint16_t port) |
d62a17ae | 4716 | { |
4717 | peer->port = port; | |
4718 | return 0; | |
4719 | } | |
4720 | ||
4721 | int peer_port_unset(struct peer *peer) | |
4722 | { | |
4723 | peer->port = BGP_PORT_DEFAULT; | |
4724 | return 0; | |
4725 | } | |
4726 | ||
4727 | /* | |
4728 | * Helper function that is called after the name of the policy | |
4729 | * being used by a peer has changed (AF specific). Automatically | |
4730 | * initiates inbound or outbound processing as needed. | |
4731 | */ | |
4732 | static void peer_on_policy_change(struct peer *peer, afi_t afi, safi_t safi, | |
4733 | int outbound) | |
4734 | { | |
4735 | if (outbound) { | |
4736 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
4737 | if (peer->status == Established) | |
4738 | bgp_announce_route(peer, afi, safi); | |
4739 | } else { | |
4740 | if (peer->status != Established) | |
4741 | return; | |
4742 | ||
4743 | if (CHECK_FLAG(peer->af_flags[afi][safi], | |
4744 | PEER_FLAG_SOFT_RECONFIG)) | |
4745 | bgp_soft_reconfig_in(peer, afi, safi); | |
4746 | else if (CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_OLD_RCV) | |
4747 | || CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_NEW_RCV)) | |
4748 | bgp_route_refresh_send(peer, afi, safi, 0, 0, 0); | |
4749 | } | |
4750 | } | |
4751 | ||
4752 | ||
4753 | /* neighbor weight. */ | |
d7c0a89a | 4754 | int peer_weight_set(struct peer *peer, afi_t afi, safi_t safi, uint16_t weight) |
d62a17ae | 4755 | { |
598ce6bd | 4756 | struct peer *member; |
d62a17ae | 4757 | struct listnode *node, *nnode; |
4758 | ||
598ce6bd PM |
4759 | /* Set flag and configuration on peer. */ |
4760 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_WEIGHT); | |
d62a17ae | 4761 | if (peer->weight[afi][safi] != weight) { |
4762 | peer->weight[afi][safi] = weight; | |
d62a17ae | 4763 | peer_on_policy_change(peer, afi, safi, 0); |
4764 | } | |
4765 | ||
598ce6bd | 4766 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 4767 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) |
4768 | return 0; | |
4769 | ||
598ce6bd PM |
4770 | /* |
4771 | * Set flag and configuration on all peer-group members, unless they are | |
4772 | * explicitely overriding peer-group configuration. | |
4773 | */ | |
4774 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4775 | /* Skip peers with overridden configuration. */ | |
4776 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
4777 | PEER_FLAG_WEIGHT)) | |
4778 | continue; | |
4779 | ||
4780 | /* Set flag and configuration on peer-group member. */ | |
4781 | SET_FLAG(member->af_flags[afi][safi], PEER_FLAG_WEIGHT); | |
4782 | if (member->weight[afi][safi] != weight) { | |
4783 | member->weight[afi][safi] = weight; | |
4784 | peer_on_policy_change(member, afi, safi, 0); | |
d62a17ae | 4785 | } |
4786 | } | |
598ce6bd | 4787 | |
d62a17ae | 4788 | return 0; |
4789 | } | |
4790 | ||
4791 | int peer_weight_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 | if (!CHECK_FLAG(peer->af_flags[afi][safi], PEER_FLAG_WEIGHT)) |
4797 | return 0; | |
4798 | ||
4799 | /* Inherit configuration from peer-group if peer is member. */ | |
d62a17ae | 4800 | if (peer_group_active(peer)) { |
598ce6bd | 4801 | peer_af_flag_inherit(peer, afi, safi, PEER_FLAG_WEIGHT); |
e7103a96 | 4802 | PEER_ATTR_INHERIT(peer, peer->group, weight[afi][safi]); |
d62a17ae | 4803 | |
598ce6bd PM |
4804 | peer_on_policy_change(peer, afi, safi, 0); |
4805 | return 0; | |
d62a17ae | 4806 | } |
4807 | ||
598ce6bd PM |
4808 | /* Remove flag and configuration from peer. */ |
4809 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_WEIGHT); | |
4810 | peer->weight[afi][safi] = 0; | |
4811 | peer_on_policy_change(peer, afi, safi, 0); | |
d62a17ae | 4812 | |
598ce6bd PM |
4813 | /* Skip peer-group mechanics for regular peers. */ |
4814 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
4815 | return 0; | |
d62a17ae | 4816 | |
598ce6bd PM |
4817 | /* |
4818 | * Remove flag and configuration from all peer-group members, unless | |
4819 | * they are explicitely overriding peer-group configuration. | |
4820 | */ | |
4821 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4822 | /* Skip peers with overridden configuration. */ | |
4823 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
4824 | PEER_FLAG_WEIGHT)) | |
4825 | continue; | |
4826 | ||
4827 | /* Skip peers where flag is already disabled. */ | |
4828 | if (!CHECK_FLAG(member->af_flags[afi][safi], PEER_FLAG_WEIGHT)) | |
4829 | continue; | |
4830 | ||
4831 | /* Remove flag and configuration on peer-group member. */ | |
4832 | UNSET_FLAG(member->af_flags[afi][safi], PEER_FLAG_WEIGHT); | |
4833 | member->weight[afi][safi] = 0; | |
4834 | peer_on_policy_change(member, afi, safi, 0); | |
d62a17ae | 4835 | } |
598ce6bd | 4836 | |
d62a17ae | 4837 | return 0; |
4838 | } | |
4839 | ||
d7c0a89a | 4840 | int peer_timers_set(struct peer *peer, uint32_t keepalive, uint32_t holdtime) |
d62a17ae | 4841 | { |
b90a8e13 | 4842 | struct peer *member; |
d62a17ae | 4843 | struct listnode *node, *nnode; |
4844 | ||
d62a17ae | 4845 | if (keepalive > 65535) |
4846 | return BGP_ERR_INVALID_VALUE; | |
4847 | ||
d62a17ae | 4848 | if (holdtime > 65535) |
4849 | return BGP_ERR_INVALID_VALUE; | |
4850 | ||
d62a17ae | 4851 | if (holdtime < 3 && holdtime != 0) |
4852 | return BGP_ERR_INVALID_VALUE; | |
4853 | ||
b90a8e13 PM |
4854 | /* Set flag and configuration on peer. */ |
4855 | peer_flag_set(peer, PEER_FLAG_TIMER); | |
d62a17ae | 4856 | peer->holdtime = holdtime; |
4857 | peer->keepalive = (keepalive < holdtime / 3 ? keepalive : holdtime / 3); | |
4858 | ||
b90a8e13 PM |
4859 | /* Skip peer-group mechanics for regular peers. */ |
4860 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
4861 | return 0; | |
d25e4efc | 4862 | |
b90a8e13 PM |
4863 | /* |
4864 | * Set flag and configuration on all peer-group members, unless they are | |
4865 | * explicitely overriding peer-group configuration. | |
4866 | */ | |
4867 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4868 | /* Skip peers with overridden configuration. */ | |
4869 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_TIMER)) | |
4870 | continue; | |
d25e4efc | 4871 | |
b90a8e13 PM |
4872 | /* Set flag and configuration on peer-group member. */ |
4873 | SET_FLAG(member->flags, PEER_FLAG_TIMER); | |
4874 | PEER_ATTR_INHERIT(peer, peer->group, holdtime); | |
4875 | PEER_ATTR_INHERIT(peer, peer->group, keepalive); | |
d62a17ae | 4876 | } |
d25e4efc | 4877 | |
d62a17ae | 4878 | return 0; |
4879 | } | |
4880 | ||
4881 | int peer_timers_unset(struct peer *peer) | |
4882 | { | |
b90a8e13 | 4883 | struct peer *member; |
d62a17ae | 4884 | struct listnode *node, *nnode; |
4885 | ||
b90a8e13 PM |
4886 | /* Inherit configuration from peer-group if peer is member. */ |
4887 | if (peer_group_active(peer)) { | |
4888 | peer_flag_inherit(peer, PEER_FLAG_TIMER); | |
4889 | PEER_ATTR_INHERIT(peer, peer->group, holdtime); | |
4890 | PEER_ATTR_INHERIT(peer, peer->group, keepalive); | |
4891 | } else { | |
4892 | /* Otherwise remove flag and configuration from peer. */ | |
4893 | peer_flag_unset(peer, PEER_FLAG_TIMER); | |
d25e4efc | 4894 | peer->holdtime = 0; |
b90a8e13 PM |
4895 | peer->keepalive = 0; |
4896 | } | |
d25e4efc | 4897 | |
b90a8e13 PM |
4898 | /* Skip peer-group mechanics for regular peers. */ |
4899 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
4900 | return 0; | |
4901 | ||
4902 | /* | |
4903 | * Remove flag and configuration from all peer-group members, unless | |
4904 | * they are explicitely overriding peer-group configuration. | |
4905 | */ | |
4906 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4907 | /* Skip peers with overridden configuration. */ | |
4908 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_TIMER)) | |
4909 | continue; | |
d25e4efc | 4910 | |
b90a8e13 PM |
4911 | /* Remove flag and configuration on peer-group member. */ |
4912 | UNSET_FLAG(member->flags, PEER_FLAG_TIMER); | |
4913 | member->holdtime = 0; | |
4914 | member->keepalive = 0; | |
d62a17ae | 4915 | } |
4916 | ||
4917 | return 0; | |
4918 | } | |
4919 | ||
d7c0a89a | 4920 | int peer_timers_connect_set(struct peer *peer, uint32_t connect) |
d62a17ae | 4921 | { |
b90a8e13 | 4922 | struct peer *member; |
d62a17ae | 4923 | struct listnode *node, *nnode; |
4924 | ||
4925 | if (connect > 65535) | |
4926 | return BGP_ERR_INVALID_VALUE; | |
4927 | ||
b90a8e13 PM |
4928 | /* Set flag and configuration on peer. */ |
4929 | peer_flag_set(peer, PEER_FLAG_TIMER_CONNECT); | |
d62a17ae | 4930 | peer->connect = connect; |
d62a17ae | 4931 | peer->v_connect = connect; |
4932 | ||
b90a8e13 | 4933 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 4934 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) |
4935 | return 0; | |
4936 | ||
b90a8e13 PM |
4937 | /* |
4938 | * Set flag and configuration on all peer-group members, unless they are | |
4939 | * explicitely overriding peer-group configuration. | |
4940 | */ | |
4941 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4942 | /* Skip peers with overridden configuration. */ | |
4943 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_TIMER_CONNECT)) | |
4944 | continue; | |
4945 | ||
4946 | /* Set flag and configuration on peer-group member. */ | |
4947 | SET_FLAG(member->flags, PEER_FLAG_TIMER_CONNECT); | |
4948 | member->connect = connect; | |
4949 | member->v_connect = connect; | |
d62a17ae | 4950 | } |
b90a8e13 | 4951 | |
d62a17ae | 4952 | return 0; |
4953 | } | |
4954 | ||
4955 | int peer_timers_connect_unset(struct peer *peer) | |
4956 | { | |
b90a8e13 | 4957 | struct peer *member; |
d62a17ae | 4958 | struct listnode *node, *nnode; |
4959 | ||
b90a8e13 PM |
4960 | /* Inherit configuration from peer-group if peer is member. */ |
4961 | if (peer_group_active(peer)) { | |
4962 | peer_flag_inherit(peer, PEER_FLAG_TIMER_CONNECT); | |
4963 | PEER_ATTR_INHERIT(peer, peer->group, connect); | |
4964 | } else { | |
4965 | /* Otherwise remove flag and configuration from peer. */ | |
4966 | peer_flag_unset(peer, PEER_FLAG_TIMER_CONNECT); | |
4967 | peer->connect = 0; | |
4968 | } | |
d62a17ae | 4969 | |
b90a8e13 PM |
4970 | /* Set timer with fallback to default value. */ |
4971 | if (peer->connect) | |
4972 | peer->v_connect = peer->connect; | |
4973 | else | |
5d5393b9 | 4974 | peer->v_connect = peer->bgp->default_connect_retry; |
d62a17ae | 4975 | |
b90a8e13 | 4976 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 4977 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) |
4978 | return 0; | |
4979 | ||
b90a8e13 PM |
4980 | /* |
4981 | * Remove flag and configuration from all peer-group members, unless | |
4982 | * they are explicitely overriding peer-group configuration. | |
4983 | */ | |
4984 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4985 | /* Skip peers with overridden configuration. */ | |
4986 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_TIMER_CONNECT)) | |
4987 | continue; | |
4988 | ||
4989 | /* Remove flag and configuration on peer-group member. */ | |
4990 | UNSET_FLAG(member->flags, PEER_FLAG_TIMER_CONNECT); | |
4991 | member->connect = 0; | |
5d5393b9 | 4992 | member->v_connect = peer->bgp->default_connect_retry; |
d62a17ae | 4993 | } |
b90a8e13 | 4994 | |
d62a17ae | 4995 | return 0; |
4996 | } | |
4997 | ||
d7c0a89a | 4998 | int peer_advertise_interval_set(struct peer *peer, uint32_t routeadv) |
d62a17ae | 4999 | { |
b90a8e13 | 5000 | struct peer *member; |
d62a17ae | 5001 | struct listnode *node, *nnode; |
5002 | ||
5003 | if (routeadv > 600) | |
5004 | return BGP_ERR_INVALID_VALUE; | |
5005 | ||
b90a8e13 PM |
5006 | /* Set flag and configuration on peer. */ |
5007 | peer_flag_set(peer, PEER_FLAG_ROUTEADV); | |
d62a17ae | 5008 | peer->routeadv = routeadv; |
5009 | peer->v_routeadv = routeadv; | |
5010 | ||
b90a8e13 | 5011 | /* Check if handling a regular peer. */ |
d62a17ae | 5012 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
b90a8e13 | 5013 | /* Update peer route announcements. */ |
d62a17ae | 5014 | update_group_adjust_peer_afs(peer); |
5015 | if (peer->status == Established) | |
5016 | bgp_announce_route_all(peer); | |
b90a8e13 PM |
5017 | |
5018 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5019 | return 0; |
5020 | } | |
5021 | ||
b90a8e13 PM |
5022 | /* |
5023 | * Set flag and configuration on all peer-group members, unless they are | |
5024 | * explicitely overriding peer-group configuration. | |
5025 | */ | |
5026 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5027 | /* Skip peers with overridden configuration. */ | |
5028 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_ROUTEADV)) | |
5029 | continue; | |
5030 | ||
5031 | /* Set flag and configuration on peer-group member. */ | |
5032 | SET_FLAG(member->flags, PEER_FLAG_ROUTEADV); | |
5033 | member->routeadv = routeadv; | |
5034 | member->v_routeadv = routeadv; | |
5035 | ||
5036 | /* Update peer route announcements. */ | |
5037 | update_group_adjust_peer_afs(member); | |
5038 | if (member->status == Established) | |
5039 | bgp_announce_route_all(member); | |
d62a17ae | 5040 | } |
5041 | ||
5042 | return 0; | |
5043 | } | |
5044 | ||
5045 | int peer_advertise_interval_unset(struct peer *peer) | |
5046 | { | |
b90a8e13 | 5047 | struct peer *member; |
d62a17ae | 5048 | struct listnode *node, *nnode; |
5049 | ||
b90a8e13 PM |
5050 | /* Inherit configuration from peer-group if peer is member. */ |
5051 | if (peer_group_active(peer)) { | |
5052 | peer_flag_inherit(peer, PEER_FLAG_ROUTEADV); | |
5053 | PEER_ATTR_INHERIT(peer, peer->group, routeadv); | |
5054 | } else { | |
5055 | /* Otherwise remove flag and configuration from peer. */ | |
5056 | peer_flag_unset(peer, PEER_FLAG_ROUTEADV); | |
5057 | peer->routeadv = 0; | |
5058 | } | |
d62a17ae | 5059 | |
b90a8e13 PM |
5060 | /* Set timer with fallback to default value. */ |
5061 | if (peer->routeadv) | |
5062 | peer->v_routeadv = peer->routeadv; | |
d62a17ae | 5063 | else |
b90a8e13 PM |
5064 | peer->v_routeadv = (peer->sort == BGP_PEER_IBGP) |
5065 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
5066 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 5067 | |
b90a8e13 | 5068 | /* Check if handling a regular peer. */ |
d62a17ae | 5069 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
b90a8e13 | 5070 | /* Update peer route announcements. */ |
d62a17ae | 5071 | update_group_adjust_peer_afs(peer); |
5072 | if (peer->status == Established) | |
5073 | bgp_announce_route_all(peer); | |
b90a8e13 PM |
5074 | |
5075 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5076 | return 0; |
5077 | } | |
5078 | ||
b90a8e13 PM |
5079 | /* |
5080 | * Remove flag and configuration from all peer-group members, unless | |
5081 | * they are explicitely overriding peer-group configuration. | |
5082 | */ | |
5083 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5084 | /* Skip peers with overridden configuration. */ | |
5085 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_ROUTEADV)) | |
5086 | continue; | |
d62a17ae | 5087 | |
b90a8e13 PM |
5088 | /* Remove flag and configuration on peer-group member. */ |
5089 | UNSET_FLAG(member->flags, PEER_FLAG_ROUTEADV); | |
5090 | member->routeadv = 0; | |
5091 | member->v_routeadv = (member->sort == BGP_PEER_IBGP) | |
5092 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
5093 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 5094 | |
b90a8e13 PM |
5095 | /* Update peer route announcements. */ |
5096 | update_group_adjust_peer_afs(member); | |
5097 | if (member->status == Established) | |
5098 | bgp_announce_route_all(member); | |
d62a17ae | 5099 | } |
5100 | ||
5101 | return 0; | |
5102 | } | |
5103 | ||
5104 | /* neighbor interface */ | |
5105 | void peer_interface_set(struct peer *peer, const char *str) | |
5106 | { | |
0a22ddfb | 5107 | XFREE(MTYPE_BGP_PEER_IFNAME, peer->ifname); |
d62a17ae | 5108 | peer->ifname = XSTRDUP(MTYPE_BGP_PEER_IFNAME, str); |
5109 | } | |
5110 | ||
5111 | void peer_interface_unset(struct peer *peer) | |
5112 | { | |
0a22ddfb | 5113 | XFREE(MTYPE_BGP_PEER_IFNAME, peer->ifname); |
d62a17ae | 5114 | peer->ifname = NULL; |
5115 | } | |
5116 | ||
5117 | /* Allow-as in. */ | |
5118 | int peer_allowas_in_set(struct peer *peer, afi_t afi, safi_t safi, | |
5119 | int allow_num, int origin) | |
5120 | { | |
598ce6bd | 5121 | struct peer *member; |
d62a17ae | 5122 | struct listnode *node, *nnode; |
5123 | ||
598ce6bd PM |
5124 | if (!origin && (allow_num < 1 || allow_num > 10)) |
5125 | return BGP_ERR_INVALID_VALUE; | |
5126 | ||
5127 | /* Set flag and configuration on peer. */ | |
5128 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_ALLOWAS_IN); | |
d62a17ae | 5129 | if (origin) { |
598ce6bd | 5130 | if (peer->allowas_in[afi][safi] != 0 |
d62a17ae | 5131 | || !CHECK_FLAG(peer->af_flags[afi][safi], |
5132 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { | |
d62a17ae | 5133 | peer_af_flag_set(peer, afi, safi, |
5134 | PEER_FLAG_ALLOWAS_IN_ORIGIN); | |
598ce6bd | 5135 | peer->allowas_in[afi][safi] = 0; |
d62a17ae | 5136 | peer_on_policy_change(peer, afi, safi, 0); |
5137 | } | |
d62a17ae | 5138 | } else { |
d62a17ae | 5139 | if (peer->allowas_in[afi][safi] != allow_num |
5140 | || CHECK_FLAG(peer->af_flags[afi][safi], | |
5141 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { | |
598ce6bd | 5142 | |
d62a17ae | 5143 | peer_af_flag_unset(peer, afi, safi, |
5144 | PEER_FLAG_ALLOWAS_IN_ORIGIN); | |
598ce6bd | 5145 | peer->allowas_in[afi][safi] = allow_num; |
d62a17ae | 5146 | peer_on_policy_change(peer, afi, safi, 0); |
5147 | } | |
598ce6bd | 5148 | } |
d62a17ae | 5149 | |
598ce6bd PM |
5150 | /* Skip peer-group mechanics for regular peers. */ |
5151 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
5152 | return 0; | |
d62a17ae | 5153 | |
598ce6bd PM |
5154 | /* |
5155 | * Set flag and configuration on all peer-group members, unless | |
5156 | * they are explicitely overriding peer-group configuration. | |
5157 | */ | |
5158 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5159 | /* Skip peers with overridden configuration. */ | |
5160 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
246bb5f0 | 5161 | PEER_FLAG_ALLOWAS_IN)) |
598ce6bd PM |
5162 | continue; |
5163 | ||
5164 | /* Set flag and configuration on peer-group member. */ | |
5165 | SET_FLAG(member->af_flags[afi][safi], PEER_FLAG_ALLOWAS_IN); | |
5166 | if (origin) { | |
5167 | if (member->allowas_in[afi][safi] != 0 | |
5168 | || !CHECK_FLAG(member->af_flags[afi][safi], | |
cf9ac8bf | 5169 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { |
598ce6bd | 5170 | SET_FLAG(member->af_flags[afi][safi], |
cf9ac8bf | 5171 | PEER_FLAG_ALLOWAS_IN_ORIGIN); |
598ce6bd PM |
5172 | member->allowas_in[afi][safi] = 0; |
5173 | peer_on_policy_change(peer, afi, safi, 0); | |
5174 | } | |
5175 | } else { | |
5176 | if (member->allowas_in[afi][safi] != allow_num | |
5177 | || CHECK_FLAG(member->af_flags[afi][safi], | |
d62a17ae | 5178 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { |
598ce6bd PM |
5179 | UNSET_FLAG(member->af_flags[afi][safi], |
5180 | PEER_FLAG_ALLOWAS_IN_ORIGIN); | |
5181 | member->allowas_in[afi][safi] = allow_num; | |
d62a17ae | 5182 | peer_on_policy_change(peer, afi, safi, 0); |
5183 | } | |
5184 | } | |
5185 | } | |
5186 | ||
5187 | return 0; | |
5188 | } | |
5189 | ||
5190 | int peer_allowas_in_unset(struct peer *peer, afi_t afi, safi_t safi) | |
5191 | { | |
598ce6bd | 5192 | struct peer *member; |
d62a17ae | 5193 | struct listnode *node, *nnode; |
5194 | ||
598ce6bd PM |
5195 | /* Skip peer if flag is already disabled. */ |
5196 | if (!CHECK_FLAG(peer->af_flags[afi][safi], PEER_FLAG_ALLOWAS_IN)) | |
5197 | return 0; | |
d62a17ae | 5198 | |
598ce6bd PM |
5199 | /* Inherit configuration from peer-group if peer is member. */ |
5200 | if (peer_group_active(peer)) { | |
5201 | peer_af_flag_inherit(peer, afi, safi, PEER_FLAG_ALLOWAS_IN); | |
5202 | peer_af_flag_inherit(peer, afi, safi, | |
cf9ac8bf | 5203 | PEER_FLAG_ALLOWAS_IN_ORIGIN); |
e7103a96 | 5204 | PEER_ATTR_INHERIT(peer, peer->group, allowas_in[afi][safi]); |
d62a17ae | 5205 | peer_on_policy_change(peer, afi, safi, 0); |
598ce6bd PM |
5206 | |
5207 | return 0; | |
5208 | } | |
5209 | ||
5210 | /* Remove flag and configuration from peer. */ | |
5211 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_ALLOWAS_IN); | |
5212 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_ALLOWAS_IN_ORIGIN); | |
5213 | peer->allowas_in[afi][safi] = 0; | |
5214 | peer_on_policy_change(peer, afi, safi, 0); | |
5215 | ||
5216 | /* Skip peer-group mechanics if handling a regular peer. */ | |
5217 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
5218 | return 0; | |
5219 | ||
5220 | /* | |
5221 | * Remove flags and configuration from all peer-group members, unless | |
5222 | * they are explicitely overriding peer-group configuration. | |
5223 | */ | |
5224 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5225 | /* Skip peers with overridden configuration. */ | |
5226 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
cf9ac8bf | 5227 | PEER_FLAG_ALLOWAS_IN)) |
598ce6bd PM |
5228 | continue; |
5229 | ||
5230 | /* Skip peers where flag is already disabled. */ | |
5231 | if (!CHECK_FLAG(member->af_flags[afi][safi], | |
cf9ac8bf | 5232 | PEER_FLAG_ALLOWAS_IN)) |
598ce6bd PM |
5233 | continue; |
5234 | ||
5235 | /* Remove flags and configuration on peer-group member. */ | |
cf9ac8bf | 5236 | UNSET_FLAG(member->af_flags[afi][safi], PEER_FLAG_ALLOWAS_IN); |
598ce6bd | 5237 | UNSET_FLAG(member->af_flags[afi][safi], |
cf9ac8bf | 5238 | PEER_FLAG_ALLOWAS_IN_ORIGIN); |
598ce6bd PM |
5239 | member->allowas_in[afi][safi] = 0; |
5240 | peer_on_policy_change(member, afi, safi, 0); | |
d62a17ae | 5241 | } |
5242 | ||
5243 | return 0; | |
5244 | } | |
5245 | ||
5246 | int peer_local_as_set(struct peer *peer, as_t as, int no_prepend, | |
5247 | int replace_as) | |
5248 | { | |
a14810f4 | 5249 | bool old_no_prepend, old_replace_as; |
d62a17ae | 5250 | struct bgp *bgp = peer->bgp; |
a14810f4 | 5251 | struct peer *member; |
d62a17ae | 5252 | struct listnode *node, *nnode; |
5253 | ||
5254 | if (peer_sort(peer) != BGP_PEER_EBGP | |
5255 | && peer_sort(peer) != BGP_PEER_INTERNAL) | |
5256 | return BGP_ERR_LOCAL_AS_ALLOWED_ONLY_FOR_EBGP; | |
5257 | ||
5258 | if (bgp->as == as) | |
5259 | return BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS; | |
5260 | ||
5261 | if (peer->as == as) | |
5262 | return BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS_REMOTE_AS; | |
5263 | ||
a14810f4 PM |
5264 | /* Save previous flag states. */ |
5265 | old_no_prepend = | |
5266 | !!CHECK_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5267 | old_replace_as = | |
5268 | !!CHECK_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
d62a17ae | 5269 | |
a14810f4 PM |
5270 | /* Set flag and configuration on peer. */ |
5271 | peer_flag_set(peer, PEER_FLAG_LOCAL_AS); | |
5272 | peer_flag_modify(peer, PEER_FLAG_LOCAL_AS_NO_PREPEND, no_prepend); | |
5273 | peer_flag_modify(peer, PEER_FLAG_LOCAL_AS_REPLACE_AS, replace_as); | |
d62a17ae | 5274 | |
a14810f4 PM |
5275 | if (peer->change_local_as == as && old_no_prepend == no_prepend |
5276 | && old_replace_as == replace_as) | |
5277 | return 0; | |
5278 | peer->change_local_as = as; | |
d62a17ae | 5279 | |
a14810f4 | 5280 | /* Check if handling a regular peer. */ |
d62a17ae | 5281 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 5282 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 5283 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
5284 | peer->last_reset = PEER_DOWN_LOCAL_AS_CHANGE; | |
5285 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5286 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5287 | } else | |
5288 | bgp_session_reset(peer); | |
a14810f4 PM |
5289 | |
5290 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5291 | return 0; |
5292 | } | |
5293 | ||
a14810f4 PM |
5294 | /* |
5295 | * Set flag and configuration on all peer-group members, unless they are | |
5296 | * explicitely overriding peer-group configuration. | |
5297 | */ | |
5298 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5299 | /* Skip peers with overridden configuration. */ | |
5300 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_LOCAL_AS)) | |
5301 | continue; | |
d62a17ae | 5302 | |
a14810f4 PM |
5303 | /* Skip peers with the same configuration. */ |
5304 | old_no_prepend = CHECK_FLAG(member->flags, | |
5305 | PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5306 | old_replace_as = CHECK_FLAG(member->flags, | |
5307 | PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
5308 | if (member->change_local_as == as | |
5309 | && CHECK_FLAG(member->flags, PEER_FLAG_LOCAL_AS) | |
5310 | && old_no_prepend == no_prepend | |
5311 | && old_replace_as == replace_as) | |
5312 | continue; | |
d62a17ae | 5313 | |
a14810f4 PM |
5314 | /* Set flag and configuration on peer-group member. */ |
5315 | SET_FLAG(member->flags, PEER_FLAG_LOCAL_AS); | |
5316 | COND_FLAG(member->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND, | |
5317 | no_prepend); | |
5318 | COND_FLAG(member->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS, | |
5319 | replace_as); | |
5320 | member->change_local_as = as; | |
5321 | ||
5322 | /* Send notification or stop peer depending on state. */ | |
5323 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) { | |
5324 | member->last_reset = PEER_DOWN_LOCAL_AS_CHANGE; | |
5325 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 5326 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
5327 | } else | |
a14810f4 | 5328 | BGP_EVENT_ADD(member, BGP_Stop); |
d62a17ae | 5329 | } |
5330 | ||
5331 | return 0; | |
5332 | } | |
5333 | ||
5334 | int peer_local_as_unset(struct peer *peer) | |
5335 | { | |
a14810f4 | 5336 | struct peer *member; |
d62a17ae | 5337 | struct listnode *node, *nnode; |
5338 | ||
a14810f4 | 5339 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_LOCAL_AS)) |
d62a17ae | 5340 | return 0; |
5341 | ||
a14810f4 PM |
5342 | /* Inherit configuration from peer-group if peer is member. */ |
5343 | if (peer_group_active(peer)) { | |
5344 | peer_flag_inherit(peer, PEER_FLAG_LOCAL_AS); | |
5345 | peer_flag_inherit(peer, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5346 | peer_flag_inherit(peer, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
5347 | PEER_ATTR_INHERIT(peer, peer->group, change_local_as); | |
5348 | } else { | |
5349 | /* Otherwise remove flag and configuration from peer. */ | |
5350 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS); | |
5351 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5352 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
5353 | peer->change_local_as = 0; | |
5354 | } | |
d62a17ae | 5355 | |
a14810f4 | 5356 | /* Check if handling a regular peer. */ |
d62a17ae | 5357 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 5358 | /* Send notification or stop peer depending on state. */ |
d62a17ae | 5359 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
5360 | peer->last_reset = PEER_DOWN_LOCAL_AS_CHANGE; | |
5361 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5362 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5363 | } else | |
5364 | BGP_EVENT_ADD(peer, BGP_Stop); | |
5365 | ||
a14810f4 | 5366 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 5367 | return 0; |
5368 | } | |
5369 | ||
a14810f4 PM |
5370 | /* |
5371 | * Remove flag and configuration from all peer-group members, unless | |
5372 | * they are explicitely overriding peer-group configuration. | |
5373 | */ | |
5374 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5375 | /* Skip peers with overridden configuration. */ | |
5376 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_LOCAL_AS)) | |
5377 | continue; | |
d62a17ae | 5378 | |
a14810f4 PM |
5379 | /* Remove flag and configuration on peer-group member. */ |
5380 | UNSET_FLAG(member->flags, PEER_FLAG_LOCAL_AS); | |
5381 | UNSET_FLAG(member->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5382 | UNSET_FLAG(member->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
5383 | member->change_local_as = 0; | |
5384 | ||
5385 | /* Send notification or stop peer depending on state. */ | |
5386 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) { | |
5387 | member->last_reset = PEER_DOWN_LOCAL_AS_CHANGE; | |
5388 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 5389 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
5390 | } else | |
a14810f4 | 5391 | bgp_session_reset(member); |
d62a17ae | 5392 | } |
a14810f4 | 5393 | |
d62a17ae | 5394 | return 0; |
5395 | } | |
5396 | ||
5397 | /* Set password for authenticating with the peer. */ | |
5398 | int peer_password_set(struct peer *peer, const char *password) | |
5399 | { | |
a14810f4 PM |
5400 | struct peer *member; |
5401 | struct listnode *node, *nnode; | |
d62a17ae | 5402 | int len = password ? strlen(password) : 0; |
5403 | int ret = BGP_SUCCESS; | |
5404 | ||
5405 | if ((len < PEER_PASSWORD_MINLEN) || (len > PEER_PASSWORD_MAXLEN)) | |
5406 | return BGP_ERR_INVALID_VALUE; | |
5407 | ||
a14810f4 PM |
5408 | /* Set flag and configuration on peer. */ |
5409 | peer_flag_set(peer, PEER_FLAG_PASSWORD); | |
5410 | if (peer->password && strcmp(peer->password, password) == 0) | |
d62a17ae | 5411 | return 0; |
a14810f4 | 5412 | XFREE(MTYPE_PEER_PASSWORD, peer->password); |
d62a17ae | 5413 | peer->password = XSTRDUP(MTYPE_PEER_PASSWORD, password); |
5414 | ||
a14810f4 | 5415 | /* Check if handling a regular peer. */ |
d62a17ae | 5416 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 5417 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 5418 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
5419 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5420 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5421 | else | |
5422 | bgp_session_reset(peer); | |
5423 | ||
a14810f4 PM |
5424 | /* |
5425 | * Attempt to install password on socket and skip peer-group | |
5426 | * mechanics. | |
5427 | */ | |
d62a17ae | 5428 | if (BGP_PEER_SU_UNSPEC(peer)) |
5429 | return BGP_SUCCESS; | |
d62a17ae | 5430 | return (bgp_md5_set(peer) >= 0) ? BGP_SUCCESS |
5431 | : BGP_ERR_TCPSIG_FAILED; | |
5432 | } | |
5433 | ||
a14810f4 PM |
5434 | /* |
5435 | * Set flag and configuration on all peer-group members, unless they are | |
5436 | * explicitely overriding peer-group configuration. | |
5437 | */ | |
5438 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5439 | /* Skip peers with overridden configuration. */ | |
5440 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_PASSWORD)) | |
d62a17ae | 5441 | continue; |
5442 | ||
a14810f4 PM |
5443 | /* Skip peers with the same password. */ |
5444 | if (member->password && strcmp(member->password, password) == 0) | |
5445 | continue; | |
d62a17ae | 5446 | |
a14810f4 PM |
5447 | /* Set flag and configuration on peer-group member. */ |
5448 | SET_FLAG(member->flags, PEER_FLAG_PASSWORD); | |
5449 | if (member->password) | |
5450 | XFREE(MTYPE_PEER_PASSWORD, member->password); | |
5451 | member->password = XSTRDUP(MTYPE_PEER_PASSWORD, password); | |
5452 | ||
5453 | /* Send notification or reset peer depending on state. */ | |
5454 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) | |
5455 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 5456 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
5457 | else | |
a14810f4 | 5458 | bgp_session_reset(member); |
d62a17ae | 5459 | |
a14810f4 PM |
5460 | /* Attempt to install password on socket. */ |
5461 | if (!BGP_PEER_SU_UNSPEC(member) && bgp_md5_set(member) < 0) | |
5462 | ret = BGP_ERR_TCPSIG_FAILED; | |
d62a17ae | 5463 | } |
5464 | ||
9e7d9a61 QY |
5465 | /* Set flag and configuration on all peer-group listen ranges */ |
5466 | struct listnode *ln; | |
5467 | struct prefix *lr; | |
5468 | ||
5469 | for (ALL_LIST_ELEMENTS_RO(peer->group->listen_range[AFI_IP], ln, lr)) | |
5470 | bgp_md5_set_prefix(lr, password); | |
5471 | for (ALL_LIST_ELEMENTS_RO(peer->group->listen_range[AFI_IP6], ln, lr)) | |
5472 | bgp_md5_set_prefix(lr, password); | |
5473 | ||
d62a17ae | 5474 | return ret; |
5475 | } | |
5476 | ||
5477 | int peer_password_unset(struct peer *peer) | |
5478 | { | |
a14810f4 PM |
5479 | struct peer *member; |
5480 | struct listnode *node, *nnode; | |
d62a17ae | 5481 | |
a14810f4 | 5482 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_PASSWORD)) |
d62a17ae | 5483 | return 0; |
5484 | ||
a14810f4 PM |
5485 | /* Inherit configuration from peer-group if peer is member. */ |
5486 | if (peer_group_active(peer)) { | |
5487 | peer_flag_inherit(peer, PEER_FLAG_PASSWORD); | |
5488 | PEER_STR_ATTR_INHERIT(peer, peer->group, password, | |
5489 | MTYPE_PEER_PASSWORD); | |
5490 | } else { | |
5491 | /* Otherwise remove flag and configuration from peer. */ | |
5492 | peer_flag_unset(peer, PEER_FLAG_PASSWORD); | |
5493 | XFREE(MTYPE_PEER_PASSWORD, peer->password); | |
5494 | } | |
5495 | ||
5496 | /* Check if handling a regular peer. */ | |
d62a17ae | 5497 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 5498 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 5499 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
5500 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5501 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5502 | else | |
5503 | bgp_session_reset(peer); | |
5504 | ||
a14810f4 | 5505 | /* Attempt to uninstall password on socket. */ |
d62a17ae | 5506 | if (!BGP_PEER_SU_UNSPEC(peer)) |
5507 | bgp_md5_unset(peer); | |
5508 | ||
a14810f4 | 5509 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 5510 | return 0; |
5511 | } | |
5512 | ||
a14810f4 PM |
5513 | /* |
5514 | * Remove flag and configuration from all peer-group members, unless | |
5515 | * they are explicitely overriding peer-group configuration. | |
5516 | */ | |
5517 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5518 | /* Skip peers with overridden configuration. */ | |
5519 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_PASSWORD)) | |
d62a17ae | 5520 | continue; |
5521 | ||
a14810f4 PM |
5522 | /* Remove flag and configuration on peer-group member. */ |
5523 | UNSET_FLAG(member->flags, PEER_FLAG_PASSWORD); | |
5524 | XFREE(MTYPE_PEER_PASSWORD, member->password); | |
5525 | ||
5526 | /* Send notification or reset peer depending on state. */ | |
5527 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) | |
5528 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 5529 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
5530 | else | |
a14810f4 | 5531 | bgp_session_reset(member); |
d62a17ae | 5532 | |
a14810f4 PM |
5533 | /* Attempt to uninstall password on socket. */ |
5534 | if (!BGP_PEER_SU_UNSPEC(member)) | |
5535 | bgp_md5_unset(member); | |
d62a17ae | 5536 | } |
5537 | ||
9e7d9a61 QY |
5538 | /* Set flag and configuration on all peer-group listen ranges */ |
5539 | struct listnode *ln; | |
5540 | struct prefix *lr; | |
5541 | ||
5542 | for (ALL_LIST_ELEMENTS_RO(peer->group->listen_range[AFI_IP], ln, lr)) | |
5543 | bgp_md5_unset_prefix(lr); | |
5544 | for (ALL_LIST_ELEMENTS_RO(peer->group->listen_range[AFI_IP6], ln, lr)) | |
5545 | bgp_md5_unset_prefix(lr); | |
5546 | ||
d62a17ae | 5547 | return 0; |
5548 | } | |
6b0655a2 | 5549 | |
3f9c7369 | 5550 | |
718e3744 | 5551 | /* Set distribute list to the peer. */ |
d62a17ae | 5552 | int peer_distribute_set(struct peer *peer, afi_t afi, safi_t safi, int direct, |
5553 | const char *name) | |
5554 | { | |
70ee29b4 | 5555 | struct peer *member; |
d62a17ae | 5556 | struct bgp_filter *filter; |
d62a17ae | 5557 | struct listnode *node, *nnode; |
5558 | ||
5559 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5560 | return BGP_ERR_INVALID_VALUE; | |
5561 | ||
70ee29b4 | 5562 | /* Set configuration on peer. */ |
d62a17ae | 5563 | filter = &peer->filter[afi][safi]; |
d62a17ae | 5564 | if (filter->plist[direct].name) |
5565 | return BGP_ERR_PEER_FILTER_CONFLICT; | |
d62a17ae | 5566 | if (filter->dlist[direct].name) |
5567 | XFREE(MTYPE_BGP_FILTER_NAME, filter->dlist[direct].name); | |
5568 | filter->dlist[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5569 | filter->dlist[direct].alist = access_list_lookup(afi, name); | |
5570 | ||
70ee29b4 | 5571 | /* Check if handling a regular peer. */ |
d62a17ae | 5572 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
5573 | /* Set override-flag and process peer route updates. */ |
5574 | SET_FLAG(peer->filter_override[afi][safi][direct], | |
5575 | PEER_FT_DISTRIBUTE_LIST); | |
d62a17ae | 5576 | peer_on_policy_change(peer, afi, safi, |
5577 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
5578 | |
5579 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5580 | return 0; |
5581 | } | |
5582 | ||
70ee29b4 PM |
5583 | /* |
5584 | * Set configuration on all peer-group members, un less they are | |
5585 | * explicitely overriding peer-group configuration. | |
5586 | */ | |
5587 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5588 | /* Skip peers with overridden configuration. */ | |
5589 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
5590 | PEER_FT_DISTRIBUTE_LIST)) | |
5591 | continue; | |
d62a17ae | 5592 | |
70ee29b4 PM |
5593 | /* Set configuration on peer-group member. */ |
5594 | filter = &member->filter[afi][safi]; | |
d62a17ae | 5595 | if (filter->dlist[direct].name) |
5596 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5597 | filter->dlist[direct].name); | |
5598 | filter->dlist[direct].name = | |
5599 | XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5600 | filter->dlist[direct].alist = access_list_lookup(afi, name); | |
70ee29b4 PM |
5601 | |
5602 | /* Process peer route updates. */ | |
5603 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 5604 | (direct == FILTER_OUT) ? 1 : 0); |
5605 | } | |
5606 | ||
5607 | return 0; | |
5608 | } | |
5609 | ||
5610 | int peer_distribute_unset(struct peer *peer, afi_t afi, safi_t safi, int direct) | |
5611 | { | |
70ee29b4 | 5612 | struct peer *member; |
d62a17ae | 5613 | struct bgp_filter *filter; |
d62a17ae | 5614 | struct listnode *node, *nnode; |
5615 | ||
5616 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5617 | return BGP_ERR_INVALID_VALUE; | |
5618 | ||
70ee29b4 PM |
5619 | /* Unset override-flag unconditionally. */ |
5620 | UNSET_FLAG(peer->filter_override[afi][safi][direct], | |
5621 | PEER_FT_DISTRIBUTE_LIST); | |
d62a17ae | 5622 | |
70ee29b4 | 5623 | /* Inherit configuration from peer-group if peer is member. */ |
d62a17ae | 5624 | if (peer_group_active(peer)) { |
e7103a96 PM |
5625 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
5626 | filter[afi][safi].dlist[direct].name, | |
5627 | MTYPE_BGP_FILTER_NAME); | |
5628 | PEER_ATTR_INHERIT(peer, peer->group, | |
5629 | filter[afi][safi].dlist[direct].alist); | |
70ee29b4 PM |
5630 | } else { |
5631 | /* Otherwise remove configuration from peer. */ | |
5632 | filter = &peer->filter[afi][safi]; | |
5633 | if (filter->dlist[direct].name) | |
5634 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5635 | filter->dlist[direct].name); | |
5636 | filter->dlist[direct].name = NULL; | |
5637 | filter->dlist[direct].alist = NULL; | |
d62a17ae | 5638 | } |
5639 | ||
70ee29b4 | 5640 | /* Check if handling a regular peer. */ |
d62a17ae | 5641 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 5642 | /* Process peer route updates. */ |
d62a17ae | 5643 | peer_on_policy_change(peer, afi, safi, |
5644 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
5645 | |
5646 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5647 | return 0; |
5648 | } | |
5649 | ||
70ee29b4 PM |
5650 | /* |
5651 | * Remove configuration on all peer-group members, unless they are | |
5652 | * explicitely overriding peer-group configuration. | |
5653 | */ | |
5654 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5655 | /* Skip peers with overridden configuration. */ | |
5656 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
5657 | PEER_FT_DISTRIBUTE_LIST)) | |
5658 | continue; | |
d62a17ae | 5659 | |
70ee29b4 PM |
5660 | /* Remove configuration on peer-group member. */ |
5661 | filter = &member->filter[afi][safi]; | |
d62a17ae | 5662 | if (filter->dlist[direct].name) |
5663 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5664 | filter->dlist[direct].name); | |
5665 | filter->dlist[direct].name = NULL; | |
5666 | filter->dlist[direct].alist = NULL; | |
70ee29b4 PM |
5667 | |
5668 | /* Process peer route updates. */ | |
5669 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 5670 | (direct == FILTER_OUT) ? 1 : 0); |
5671 | } | |
5672 | ||
5673 | return 0; | |
5674 | } | |
5675 | ||
5676 | /* Update distribute list. */ | |
5677 | static void peer_distribute_update(struct access_list *access) | |
5678 | { | |
5679 | afi_t afi; | |
5680 | safi_t safi; | |
5681 | int direct; | |
5682 | struct listnode *mnode, *mnnode; | |
5683 | struct listnode *node, *nnode; | |
5684 | struct bgp *bgp; | |
5685 | struct peer *peer; | |
5686 | struct peer_group *group; | |
5687 | struct bgp_filter *filter; | |
5688 | ||
5689 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
5690 | if (access->name) | |
5691 | update_group_policy_update(bgp, BGP_POLICY_FILTER_LIST, | |
5692 | access->name, 0, 0); | |
5693 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
05c7a1cc QY |
5694 | FOREACH_AFI_SAFI (afi, safi) { |
5695 | filter = &peer->filter[afi][safi]; | |
5696 | ||
5697 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
5698 | direct++) { | |
5699 | if (filter->dlist[direct].name) | |
5700 | filter->dlist[direct] | |
5701 | .alist = access_list_lookup( | |
5702 | afi, | |
d62a17ae | 5703 | filter->dlist[direct] |
05c7a1cc QY |
5704 | .name); |
5705 | else | |
5706 | filter->dlist[direct].alist = | |
5707 | NULL; | |
d62a17ae | 5708 | } |
05c7a1cc | 5709 | } |
d62a17ae | 5710 | } |
5711 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
05c7a1cc QY |
5712 | FOREACH_AFI_SAFI (afi, safi) { |
5713 | filter = &group->conf->filter[afi][safi]; | |
5714 | ||
5715 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
5716 | direct++) { | |
5717 | if (filter->dlist[direct].name) | |
5718 | filter->dlist[direct] | |
5719 | .alist = access_list_lookup( | |
5720 | afi, | |
d62a17ae | 5721 | filter->dlist[direct] |
05c7a1cc QY |
5722 | .name); |
5723 | else | |
5724 | filter->dlist[direct].alist = | |
5725 | NULL; | |
d62a17ae | 5726 | } |
05c7a1cc | 5727 | } |
d62a17ae | 5728 | } |
5729 | #if ENABLE_BGP_VNC | |
5730 | vnc_prefix_list_update(bgp); | |
5731 | #endif | |
5732 | } | |
5733 | } | |
5734 | ||
5735 | /* Set prefix list to the peer. */ | |
5736 | int peer_prefix_list_set(struct peer *peer, afi_t afi, safi_t safi, int direct, | |
5737 | const char *name) | |
5738 | { | |
70ee29b4 | 5739 | struct peer *member; |
d62a17ae | 5740 | struct bgp_filter *filter; |
d62a17ae | 5741 | struct listnode *node, *nnode; |
5742 | ||
5743 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5744 | return BGP_ERR_INVALID_VALUE; | |
5745 | ||
70ee29b4 | 5746 | /* Set configuration on peer. */ |
d62a17ae | 5747 | filter = &peer->filter[afi][safi]; |
d62a17ae | 5748 | if (filter->dlist[direct].name) |
5749 | return BGP_ERR_PEER_FILTER_CONFLICT; | |
d62a17ae | 5750 | if (filter->plist[direct].name) |
5751 | XFREE(MTYPE_BGP_FILTER_NAME, filter->plist[direct].name); | |
5752 | filter->plist[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5753 | filter->plist[direct].plist = prefix_list_lookup(afi, name); | |
5754 | ||
70ee29b4 | 5755 | /* Check if handling a regular peer. */ |
d62a17ae | 5756 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
5757 | /* Set override-flag and process peer route updates. */ |
5758 | SET_FLAG(peer->filter_override[afi][safi][direct], | |
5759 | PEER_FT_PREFIX_LIST); | |
d62a17ae | 5760 | peer_on_policy_change(peer, afi, safi, |
5761 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
5762 | |
5763 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5764 | return 0; |
5765 | } | |
5766 | ||
70ee29b4 PM |
5767 | /* |
5768 | * Set configuration on all peer-group members, unless they are | |
5769 | * explicitely overriding peer-group configuration. | |
5770 | */ | |
5771 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5772 | /* Skip peers with overridden configuration. */ | |
5773 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
5774 | PEER_FT_PREFIX_LIST)) | |
5775 | continue; | |
d62a17ae | 5776 | |
70ee29b4 PM |
5777 | /* Set configuration on peer-group member. */ |
5778 | filter = &member->filter[afi][safi]; | |
d62a17ae | 5779 | if (filter->plist[direct].name) |
5780 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5781 | filter->plist[direct].name); | |
5782 | filter->plist[direct].name = | |
5783 | XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5784 | filter->plist[direct].plist = prefix_list_lookup(afi, name); | |
70ee29b4 PM |
5785 | |
5786 | /* Process peer route updates. */ | |
5787 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 5788 | (direct == FILTER_OUT) ? 1 : 0); |
5789 | } | |
70ee29b4 | 5790 | |
d62a17ae | 5791 | return 0; |
5792 | } | |
5793 | ||
5794 | int peer_prefix_list_unset(struct peer *peer, afi_t afi, safi_t safi, | |
5795 | int direct) | |
5796 | { | |
70ee29b4 | 5797 | struct peer *member; |
d62a17ae | 5798 | struct bgp_filter *filter; |
d62a17ae | 5799 | struct listnode *node, *nnode; |
5800 | ||
5801 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5802 | return BGP_ERR_INVALID_VALUE; | |
5803 | ||
70ee29b4 PM |
5804 | /* Unset override-flag unconditionally. */ |
5805 | UNSET_FLAG(peer->filter_override[afi][safi][direct], | |
5806 | PEER_FT_PREFIX_LIST); | |
d62a17ae | 5807 | |
70ee29b4 | 5808 | /* Inherit configuration from peer-group if peer is member. */ |
d62a17ae | 5809 | if (peer_group_active(peer)) { |
e7103a96 PM |
5810 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
5811 | filter[afi][safi].plist[direct].name, | |
5812 | MTYPE_BGP_FILTER_NAME); | |
5813 | PEER_ATTR_INHERIT(peer, peer->group, | |
5814 | filter[afi][safi].plist[direct].plist); | |
70ee29b4 PM |
5815 | } else { |
5816 | /* Otherwise remove configuration from peer. */ | |
5817 | filter = &peer->filter[afi][safi]; | |
5818 | if (filter->plist[direct].name) | |
5819 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5820 | filter->plist[direct].name); | |
5821 | filter->plist[direct].name = NULL; | |
5822 | filter->plist[direct].plist = NULL; | |
d62a17ae | 5823 | } |
5824 | ||
70ee29b4 | 5825 | /* Check if handling a regular peer. */ |
d62a17ae | 5826 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 5827 | /* Process peer route updates. */ |
d62a17ae | 5828 | peer_on_policy_change(peer, afi, safi, |
5829 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
5830 | |
5831 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5832 | return 0; |
5833 | } | |
5834 | ||
70ee29b4 PM |
5835 | /* |
5836 | * Remove configuration on all peer-group members, unless they are | |
5837 | * explicitely overriding peer-group configuration. | |
5838 | */ | |
5839 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5840 | /* Skip peers with overridden configuration. */ | |
5841 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
5842 | PEER_FT_PREFIX_LIST)) | |
5843 | continue; | |
d62a17ae | 5844 | |
70ee29b4 PM |
5845 | /* Remove configuration on peer-group member. */ |
5846 | filter = &member->filter[afi][safi]; | |
d62a17ae | 5847 | if (filter->plist[direct].name) |
5848 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5849 | filter->plist[direct].name); | |
5850 | filter->plist[direct].name = NULL; | |
5851 | filter->plist[direct].plist = NULL; | |
70ee29b4 PM |
5852 | |
5853 | /* Process peer route updates. */ | |
5854 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 5855 | (direct == FILTER_OUT) ? 1 : 0); |
5856 | } | |
5857 | ||
5858 | return 0; | |
5859 | } | |
5860 | ||
5861 | /* Update prefix-list list. */ | |
5862 | static void peer_prefix_list_update(struct prefix_list *plist) | |
5863 | { | |
5864 | struct listnode *mnode, *mnnode; | |
5865 | struct listnode *node, *nnode; | |
5866 | struct bgp *bgp; | |
5867 | struct peer *peer; | |
5868 | struct peer_group *group; | |
5869 | struct bgp_filter *filter; | |
5870 | afi_t afi; | |
5871 | safi_t safi; | |
5872 | int direct; | |
5873 | ||
5874 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
5875 | ||
5876 | /* | |
5877 | * Update the prefix-list on update groups. | |
5878 | */ | |
5879 | update_group_policy_update( | |
5880 | bgp, BGP_POLICY_PREFIX_LIST, | |
5881 | plist ? prefix_list_name(plist) : NULL, 0, 0); | |
5882 | ||
5883 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
05c7a1cc QY |
5884 | FOREACH_AFI_SAFI (afi, safi) { |
5885 | filter = &peer->filter[afi][safi]; | |
5886 | ||
5887 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
5888 | direct++) { | |
5889 | if (filter->plist[direct].name) | |
5890 | filter->plist[direct] | |
5891 | .plist = prefix_list_lookup( | |
5892 | afi, | |
d62a17ae | 5893 | filter->plist[direct] |
05c7a1cc QY |
5894 | .name); |
5895 | else | |
5896 | filter->plist[direct].plist = | |
5897 | NULL; | |
d62a17ae | 5898 | } |
05c7a1cc | 5899 | } |
d62a17ae | 5900 | } |
5901 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
05c7a1cc QY |
5902 | FOREACH_AFI_SAFI (afi, safi) { |
5903 | filter = &group->conf->filter[afi][safi]; | |
5904 | ||
5905 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
5906 | direct++) { | |
5907 | if (filter->plist[direct].name) | |
5908 | filter->plist[direct] | |
5909 | .plist = prefix_list_lookup( | |
5910 | afi, | |
d62a17ae | 5911 | filter->plist[direct] |
05c7a1cc QY |
5912 | .name); |
5913 | else | |
5914 | filter->plist[direct].plist = | |
5915 | NULL; | |
d62a17ae | 5916 | } |
05c7a1cc | 5917 | } |
d62a17ae | 5918 | } |
5919 | } | |
5920 | } | |
5921 | ||
5922 | int peer_aslist_set(struct peer *peer, afi_t afi, safi_t safi, int direct, | |
5923 | const char *name) | |
5924 | { | |
70ee29b4 | 5925 | struct peer *member; |
d62a17ae | 5926 | struct bgp_filter *filter; |
d62a17ae | 5927 | struct listnode *node, *nnode; |
5928 | ||
5929 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5930 | return BGP_ERR_INVALID_VALUE; | |
5931 | ||
70ee29b4 | 5932 | /* Set configuration on peer. */ |
d62a17ae | 5933 | filter = &peer->filter[afi][safi]; |
d62a17ae | 5934 | if (filter->aslist[direct].name) |
5935 | XFREE(MTYPE_BGP_FILTER_NAME, filter->aslist[direct].name); | |
5936 | filter->aslist[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5937 | filter->aslist[direct].aslist = as_list_lookup(name); | |
5938 | ||
70ee29b4 | 5939 | /* Check if handling a regular peer. */ |
d62a17ae | 5940 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
5941 | /* Set override-flag and process peer route updates. */ |
5942 | SET_FLAG(peer->filter_override[afi][safi][direct], | |
5943 | PEER_FT_FILTER_LIST); | |
d62a17ae | 5944 | peer_on_policy_change(peer, afi, safi, |
5945 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
5946 | |
5947 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5948 | return 0; |
5949 | } | |
5950 | ||
70ee29b4 PM |
5951 | /* |
5952 | * Set configuration on all peer-group members, unless they are | |
5953 | * explicitely overriding peer-group configuration. | |
5954 | */ | |
5955 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5956 | /* Skip peers with overridden configuration. */ | |
5957 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
5958 | PEER_FT_FILTER_LIST)) | |
5959 | continue; | |
d62a17ae | 5960 | |
70ee29b4 PM |
5961 | /* Set configuration on peer-group member. */ |
5962 | filter = &member->filter[afi][safi]; | |
d62a17ae | 5963 | if (filter->aslist[direct].name) |
5964 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5965 | filter->aslist[direct].name); | |
5966 | filter->aslist[direct].name = | |
5967 | XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5968 | filter->aslist[direct].aslist = as_list_lookup(name); | |
70ee29b4 PM |
5969 | |
5970 | /* Process peer route updates. */ | |
5971 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 5972 | (direct == FILTER_OUT) ? 1 : 0); |
5973 | } | |
70ee29b4 | 5974 | |
d62a17ae | 5975 | return 0; |
5976 | } | |
5977 | ||
5978 | int peer_aslist_unset(struct peer *peer, afi_t afi, safi_t safi, int direct) | |
5979 | { | |
70ee29b4 | 5980 | struct peer *member; |
d62a17ae | 5981 | struct bgp_filter *filter; |
d62a17ae | 5982 | struct listnode *node, *nnode; |
5983 | ||
5984 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5985 | return BGP_ERR_INVALID_VALUE; | |
5986 | ||
70ee29b4 PM |
5987 | /* Unset override-flag unconditionally. */ |
5988 | UNSET_FLAG(peer->filter_override[afi][safi][direct], | |
5989 | PEER_FT_FILTER_LIST); | |
d62a17ae | 5990 | |
70ee29b4 | 5991 | /* Inherit configuration from peer-group if peer is member. */ |
d62a17ae | 5992 | if (peer_group_active(peer)) { |
e7103a96 PM |
5993 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
5994 | filter[afi][safi].aslist[direct].name, | |
5995 | MTYPE_BGP_FILTER_NAME); | |
5996 | PEER_ATTR_INHERIT(peer, peer->group, | |
70ee29b4 PM |
5997 | filter[afi][safi].aslist[direct].aslist); |
5998 | } else { | |
5999 | /* Otherwise remove configuration from peer. */ | |
6000 | filter = &peer->filter[afi][safi]; | |
6001 | if (filter->aslist[direct].name) | |
6002 | XFREE(MTYPE_BGP_FILTER_NAME, | |
6003 | filter->aslist[direct].name); | |
6004 | filter->aslist[direct].name = NULL; | |
6005 | filter->aslist[direct].aslist = NULL; | |
d62a17ae | 6006 | } |
6007 | ||
70ee29b4 | 6008 | /* Check if handling a regular peer. */ |
d62a17ae | 6009 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 6010 | /* Process peer route updates. */ |
d62a17ae | 6011 | peer_on_policy_change(peer, afi, safi, |
6012 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
6013 | |
6014 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6015 | return 0; |
6016 | } | |
6017 | ||
70ee29b4 PM |
6018 | /* |
6019 | * Remove configuration on all peer-group members, unless they are | |
6020 | * explicitely overriding peer-group configuration. | |
6021 | */ | |
6022 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6023 | /* Skip peers with overridden configuration. */ | |
6024 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
6025 | PEER_FT_FILTER_LIST)) | |
6026 | continue; | |
d62a17ae | 6027 | |
70ee29b4 PM |
6028 | /* Remove configuration on peer-group member. */ |
6029 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6030 | if (filter->aslist[direct].name) |
6031 | XFREE(MTYPE_BGP_FILTER_NAME, | |
6032 | filter->aslist[direct].name); | |
6033 | filter->aslist[direct].name = NULL; | |
6034 | filter->aslist[direct].aslist = NULL; | |
70ee29b4 PM |
6035 | |
6036 | /* Process peer route updates. */ | |
6037 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 6038 | (direct == FILTER_OUT) ? 1 : 0); |
6039 | } | |
6040 | ||
6041 | return 0; | |
6042 | } | |
6043 | ||
6044 | static void peer_aslist_update(const char *aslist_name) | |
6045 | { | |
6046 | afi_t afi; | |
6047 | safi_t safi; | |
6048 | int direct; | |
6049 | struct listnode *mnode, *mnnode; | |
6050 | struct listnode *node, *nnode; | |
6051 | struct bgp *bgp; | |
6052 | struct peer *peer; | |
6053 | struct peer_group *group; | |
6054 | struct bgp_filter *filter; | |
6055 | ||
6056 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
6057 | update_group_policy_update(bgp, BGP_POLICY_FILTER_LIST, | |
6058 | aslist_name, 0, 0); | |
6059 | ||
6060 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
05c7a1cc QY |
6061 | FOREACH_AFI_SAFI (afi, safi) { |
6062 | filter = &peer->filter[afi][safi]; | |
6063 | ||
6064 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
6065 | direct++) { | |
6066 | if (filter->aslist[direct].name) | |
6067 | filter->aslist[direct] | |
6068 | .aslist = as_list_lookup( | |
d62a17ae | 6069 | filter->aslist[direct] |
05c7a1cc QY |
6070 | .name); |
6071 | else | |
6072 | filter->aslist[direct].aslist = | |
6073 | NULL; | |
d62a17ae | 6074 | } |
05c7a1cc | 6075 | } |
d62a17ae | 6076 | } |
6077 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
05c7a1cc QY |
6078 | FOREACH_AFI_SAFI (afi, safi) { |
6079 | filter = &group->conf->filter[afi][safi]; | |
6080 | ||
6081 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
6082 | direct++) { | |
6083 | if (filter->aslist[direct].name) | |
6084 | filter->aslist[direct] | |
6085 | .aslist = as_list_lookup( | |
d62a17ae | 6086 | filter->aslist[direct] |
05c7a1cc QY |
6087 | .name); |
6088 | else | |
6089 | filter->aslist[direct].aslist = | |
6090 | NULL; | |
d62a17ae | 6091 | } |
05c7a1cc | 6092 | } |
d62a17ae | 6093 | } |
6094 | } | |
6095 | } | |
6096 | ||
6097 | static void peer_aslist_add(char *aslist_name) | |
6098 | { | |
6099 | peer_aslist_update(aslist_name); | |
6100 | route_map_notify_dependencies((char *)aslist_name, | |
6101 | RMAP_EVENT_ASLIST_ADDED); | |
6102 | } | |
6103 | ||
6104 | static void peer_aslist_del(const char *aslist_name) | |
6105 | { | |
6106 | peer_aslist_update(aslist_name); | |
6107 | route_map_notify_dependencies(aslist_name, RMAP_EVENT_ASLIST_DELETED); | |
6108 | } | |
6109 | ||
6110 | ||
6111 | int peer_route_map_set(struct peer *peer, afi_t afi, safi_t safi, int direct, | |
1de27621 | 6112 | const char *name, struct route_map *route_map) |
d62a17ae | 6113 | { |
70ee29b4 | 6114 | struct peer *member; |
d62a17ae | 6115 | struct bgp_filter *filter; |
d62a17ae | 6116 | struct listnode *node, *nnode; |
6117 | ||
6118 | if (direct != RMAP_IN && direct != RMAP_OUT) | |
6119 | return BGP_ERR_INVALID_VALUE; | |
6120 | ||
70ee29b4 | 6121 | /* Set configuration on peer. */ |
d62a17ae | 6122 | filter = &peer->filter[afi][safi]; |
6c3247bd NT |
6123 | if (filter->map[direct].name) { |
6124 | /* If the neighbor is configured with the same route-map | |
6125 | * again then, ignore the duplicate configuration. | |
6126 | */ | |
6127 | if (strcmp(filter->map[direct].name, name) == 0) | |
6128 | return 0; | |
6129 | ||
d62a17ae | 6130 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); |
6c3247bd | 6131 | } |
b4897fa5 | 6132 | route_map_counter_decrement(filter->map[direct].map); |
d62a17ae | 6133 | filter->map[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); |
1de27621 | 6134 | filter->map[direct].map = route_map; |
b4897fa5 | 6135 | route_map_counter_increment(route_map); |
d62a17ae | 6136 | |
70ee29b4 | 6137 | /* Check if handling a regular peer. */ |
d62a17ae | 6138 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
6139 | /* Set override-flag and process peer route updates. */ |
6140 | SET_FLAG(peer->filter_override[afi][safi][direct], | |
6141 | PEER_FT_ROUTE_MAP); | |
d62a17ae | 6142 | peer_on_policy_change(peer, afi, safi, |
6143 | (direct == RMAP_OUT) ? 1 : 0); | |
70ee29b4 PM |
6144 | |
6145 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6146 | return 0; |
6147 | } | |
6148 | ||
70ee29b4 PM |
6149 | /* |
6150 | * Set configuration on all peer-group members, unless they are | |
6151 | * explicitely overriding peer-group configuration. | |
6152 | */ | |
6153 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6154 | /* Skip peers with overridden configuration. */ | |
6155 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
6156 | PEER_FT_ROUTE_MAP)) | |
6157 | continue; | |
d62a17ae | 6158 | |
70ee29b4 PM |
6159 | /* Set configuration on peer-group member. */ |
6160 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6161 | if (filter->map[direct].name) |
6162 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); | |
b4897fa5 | 6163 | route_map_counter_decrement(filter->map[direct].map); |
d62a17ae | 6164 | filter->map[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); |
1de27621 | 6165 | filter->map[direct].map = route_map; |
b4897fa5 | 6166 | route_map_counter_increment(route_map); |
70ee29b4 PM |
6167 | |
6168 | /* Process peer route updates. */ | |
6169 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 6170 | (direct == RMAP_OUT) ? 1 : 0); |
6171 | } | |
6172 | return 0; | |
6173 | } | |
6174 | ||
6175 | /* Unset route-map from the peer. */ | |
6176 | int peer_route_map_unset(struct peer *peer, afi_t afi, safi_t safi, int direct) | |
6177 | { | |
70ee29b4 | 6178 | struct peer *member; |
d62a17ae | 6179 | struct bgp_filter *filter; |
d62a17ae | 6180 | struct listnode *node, *nnode; |
6181 | ||
6182 | if (direct != RMAP_IN && direct != RMAP_OUT) | |
6183 | return BGP_ERR_INVALID_VALUE; | |
6184 | ||
70ee29b4 PM |
6185 | /* Unset override-flag unconditionally. */ |
6186 | UNSET_FLAG(peer->filter_override[afi][safi][direct], PEER_FT_ROUTE_MAP); | |
d62a17ae | 6187 | |
70ee29b4 | 6188 | /* Inherit configuration from peer-group if peer is member. */ |
d62a17ae | 6189 | if (peer_group_active(peer)) { |
e7103a96 PM |
6190 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
6191 | filter[afi][safi].map[direct].name, | |
6192 | MTYPE_BGP_FILTER_NAME); | |
6193 | PEER_ATTR_INHERIT(peer, peer->group, | |
6194 | filter[afi][safi].map[direct].map); | |
70ee29b4 PM |
6195 | } else { |
6196 | /* Otherwise remove configuration from peer. */ | |
6197 | filter = &peer->filter[afi][safi]; | |
6198 | if (filter->map[direct].name) | |
6199 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); | |
b4897fa5 | 6200 | route_map_counter_decrement(filter->map[direct].map); |
70ee29b4 PM |
6201 | filter->map[direct].name = NULL; |
6202 | filter->map[direct].map = NULL; | |
d62a17ae | 6203 | } |
6204 | ||
70ee29b4 | 6205 | /* Check if handling a regular peer. */ |
d62a17ae | 6206 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 6207 | /* Process peer route updates. */ |
d62a17ae | 6208 | peer_on_policy_change(peer, afi, safi, |
6209 | (direct == RMAP_OUT) ? 1 : 0); | |
70ee29b4 PM |
6210 | |
6211 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6212 | return 0; |
6213 | } | |
6214 | ||
70ee29b4 PM |
6215 | /* |
6216 | * Remove configuration on all peer-group members, unless they are | |
6217 | * explicitely overriding peer-group configuration. | |
6218 | */ | |
6219 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6220 | /* Skip peers with overridden configuration. */ | |
6221 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
6222 | PEER_FT_ROUTE_MAP)) | |
6223 | continue; | |
d62a17ae | 6224 | |
70ee29b4 PM |
6225 | /* Remove configuration on peer-group member. */ |
6226 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6227 | if (filter->map[direct].name) |
6228 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); | |
b4897fa5 | 6229 | route_map_counter_decrement(filter->map[direct].map); |
d62a17ae | 6230 | filter->map[direct].name = NULL; |
6231 | filter->map[direct].map = NULL; | |
70ee29b4 PM |
6232 | |
6233 | /* Process peer route updates. */ | |
6234 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 6235 | (direct == RMAP_OUT) ? 1 : 0); |
6236 | } | |
70ee29b4 | 6237 | |
d62a17ae | 6238 | return 0; |
6239 | } | |
6240 | ||
6241 | /* Set unsuppress-map to the peer. */ | |
6242 | int peer_unsuppress_map_set(struct peer *peer, afi_t afi, safi_t safi, | |
1de27621 | 6243 | const char *name, struct route_map *route_map) |
d62a17ae | 6244 | { |
70ee29b4 | 6245 | struct peer *member; |
d62a17ae | 6246 | struct bgp_filter *filter; |
d62a17ae | 6247 | struct listnode *node, *nnode; |
6248 | ||
70ee29b4 | 6249 | /* Set configuration on peer. */ |
d62a17ae | 6250 | filter = &peer->filter[afi][safi]; |
d62a17ae | 6251 | if (filter->usmap.name) |
6252 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
b4897fa5 | 6253 | route_map_counter_decrement(filter->usmap.map); |
d62a17ae | 6254 | filter->usmap.name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); |
1de27621 | 6255 | filter->usmap.map = route_map; |
b4897fa5 | 6256 | route_map_counter_increment(route_map); |
d62a17ae | 6257 | |
70ee29b4 | 6258 | /* Check if handling a regular peer. */ |
d62a17ae | 6259 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
6260 | /* Set override-flag and process peer route updates. */ |
6261 | SET_FLAG(peer->filter_override[afi][safi][0], | |
6262 | PEER_FT_UNSUPPRESS_MAP); | |
d62a17ae | 6263 | peer_on_policy_change(peer, afi, safi, 1); |
70ee29b4 PM |
6264 | |
6265 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6266 | return 0; |
6267 | } | |
6268 | ||
70ee29b4 PM |
6269 | /* |
6270 | * Set configuration on all peer-group members, unless they are | |
6271 | * explicitely overriding peer-group configuration. | |
6272 | */ | |
6273 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6274 | /* Skip peers with overridden configuration. */ | |
246bb5f0 | 6275 | if (CHECK_FLAG(member->filter_override[afi][safi][0], |
70ee29b4 PM |
6276 | PEER_FT_UNSUPPRESS_MAP)) |
6277 | continue; | |
d62a17ae | 6278 | |
70ee29b4 PM |
6279 | /* Set configuration on peer-group member. */ |
6280 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6281 | if (filter->usmap.name) |
6282 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
b4897fa5 | 6283 | route_map_counter_decrement(filter->usmap.map); |
d62a17ae | 6284 | filter->usmap.name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); |
1de27621 | 6285 | filter->usmap.map = route_map; |
b4897fa5 | 6286 | route_map_counter_increment(route_map); |
70ee29b4 PM |
6287 | |
6288 | /* Process peer route updates. */ | |
6289 | peer_on_policy_change(member, afi, safi, 1); | |
d62a17ae | 6290 | } |
70ee29b4 | 6291 | |
d62a17ae | 6292 | return 0; |
6293 | } | |
6294 | ||
6295 | /* Unset route-map from the peer. */ | |
6296 | int peer_unsuppress_map_unset(struct peer *peer, afi_t afi, safi_t safi) | |
718e3744 | 6297 | { |
70ee29b4 | 6298 | struct peer *member; |
d62a17ae | 6299 | struct bgp_filter *filter; |
d62a17ae | 6300 | struct listnode *node, *nnode; |
6301 | ||
70ee29b4 PM |
6302 | /* Unset override-flag unconditionally. */ |
6303 | UNSET_FLAG(peer->filter_override[afi][safi][0], PEER_FT_UNSUPPRESS_MAP); | |
718e3744 | 6304 | |
70ee29b4 PM |
6305 | /* Inherit configuration from peer-group if peer is member. */ |
6306 | if (peer_group_active(peer)) { | |
e7103a96 PM |
6307 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
6308 | filter[afi][safi].usmap.name, | |
6309 | MTYPE_BGP_FILTER_NAME); | |
6310 | PEER_ATTR_INHERIT(peer, peer->group, | |
6311 | filter[afi][safi].usmap.map); | |
70ee29b4 PM |
6312 | } else { |
6313 | /* Otherwise remove configuration from peer. */ | |
6314 | filter = &peer->filter[afi][safi]; | |
6315 | if (filter->usmap.name) | |
6316 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
b4897fa5 | 6317 | route_map_counter_decrement(filter->usmap.map); |
70ee29b4 PM |
6318 | filter->usmap.name = NULL; |
6319 | filter->usmap.map = NULL; | |
6320 | } | |
718e3744 | 6321 | |
70ee29b4 | 6322 | /* Check if handling a regular peer. */ |
d62a17ae | 6323 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 6324 | /* Process peer route updates. */ |
d62a17ae | 6325 | peer_on_policy_change(peer, afi, safi, 1); |
70ee29b4 PM |
6326 | |
6327 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6328 | return 0; |
6329 | } | |
718e3744 | 6330 | |
70ee29b4 PM |
6331 | /* |
6332 | * Remove configuration on all peer-group members, unless they are | |
6333 | * explicitely overriding peer-group configuration. | |
6334 | */ | |
6335 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6336 | /* Skip peers with overridden configuration. */ | |
6337 | if (CHECK_FLAG(member->filter_override[afi][safi][0], | |
6338 | PEER_FT_UNSUPPRESS_MAP)) | |
6339 | continue; | |
718e3744 | 6340 | |
70ee29b4 PM |
6341 | /* Remove configuration on peer-group member. */ |
6342 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6343 | if (filter->usmap.name) |
6344 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
b4897fa5 | 6345 | route_map_counter_decrement(filter->usmap.map); |
d62a17ae | 6346 | filter->usmap.name = NULL; |
6347 | filter->usmap.map = NULL; | |
70ee29b4 PM |
6348 | |
6349 | /* Process peer route updates. */ | |
6350 | peer_on_policy_change(member, afi, safi, 1); | |
d62a17ae | 6351 | } |
70ee29b4 | 6352 | |
d62a17ae | 6353 | return 0; |
6354 | } | |
718e3744 | 6355 | |
d62a17ae | 6356 | int peer_maximum_prefix_set(struct peer *peer, afi_t afi, safi_t safi, |
d7c0a89a QY |
6357 | uint32_t max, uint8_t threshold, int warning, |
6358 | uint16_t restart) | |
d62a17ae | 6359 | { |
598ce6bd | 6360 | struct peer *member; |
d62a17ae | 6361 | struct listnode *node, *nnode; |
6362 | ||
598ce6bd PM |
6363 | /* Set flags and configuration on peer. */ |
6364 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_MAX_PREFIX); | |
d62a17ae | 6365 | if (warning) |
598ce6bd | 6366 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_MAX_PREFIX_WARNING); |
d62a17ae | 6367 | else |
598ce6bd PM |
6368 | peer_af_flag_unset(peer, afi, safi, |
6369 | PEER_FLAG_MAX_PREFIX_WARNING); | |
6370 | ||
04e1c5bb QY |
6371 | peer->pmax[afi][safi] = max; |
6372 | peer->pmax_threshold[afi][safi] = threshold; | |
6373 | peer->pmax_restart[afi][safi] = restart; | |
d62a17ae | 6374 | |
598ce6bd PM |
6375 | /* Check if handling a regular peer. */ |
6376 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
6377 | /* Re-check if peer violates maximum-prefix. */ | |
d62a17ae | 6378 | if ((peer->status == Established) && (peer->afc[afi][safi])) |
6379 | bgp_maximum_prefix_overflow(peer, afi, safi, 1); | |
04e1c5bb | 6380 | |
598ce6bd PM |
6381 | /* Skip peer-group mechanics for regular peers. */ |
6382 | return 0; | |
6383 | } | |
04e1c5bb | 6384 | |
598ce6bd PM |
6385 | /* |
6386 | * Set flags and configuration on all peer-group members, unless they | |
6387 | * are explicitely overriding peer-group configuration. | |
6388 | */ | |
6389 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6390 | /* Skip peers with overridden configuration. */ | |
6391 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
6392 | PEER_FLAG_MAX_PREFIX)) | |
6393 | continue; | |
04e1c5bb | 6394 | |
598ce6bd PM |
6395 | /* Set flag and configuration on peer-group member. */ |
6396 | member->pmax[afi][safi] = max; | |
6397 | member->pmax_threshold[afi][safi] = threshold; | |
6398 | member->pmax_restart[afi][safi] = restart; | |
04e1c5bb | 6399 | if (warning) |
598ce6bd | 6400 | SET_FLAG(member->af_flags[afi][safi], |
04e1c5bb QY |
6401 | PEER_FLAG_MAX_PREFIX_WARNING); |
6402 | else | |
598ce6bd | 6403 | UNSET_FLAG(member->af_flags[afi][safi], |
04e1c5bb | 6404 | PEER_FLAG_MAX_PREFIX_WARNING); |
598ce6bd PM |
6405 | |
6406 | /* Re-check if peer violates maximum-prefix. */ | |
6407 | if ((member->status == Established) && (member->afc[afi][safi])) | |
6408 | bgp_maximum_prefix_overflow(member, afi, safi, 1); | |
d62a17ae | 6409 | } |
718e3744 | 6410 | |
d62a17ae | 6411 | return 0; |
6412 | } | |
718e3744 | 6413 | |
d62a17ae | 6414 | int peer_maximum_prefix_unset(struct peer *peer, afi_t afi, safi_t safi) |
6415 | { | |
598ce6bd PM |
6416 | /* Inherit configuration from peer-group if peer is member. */ |
6417 | if (peer_group_active(peer)) { | |
6418 | peer_af_flag_inherit(peer, afi, safi, PEER_FLAG_MAX_PREFIX); | |
6419 | peer_af_flag_inherit(peer, afi, safi, | |
6420 | PEER_FLAG_MAX_PREFIX_WARNING); | |
e7103a96 PM |
6421 | PEER_ATTR_INHERIT(peer, peer->group, pmax[afi][safi]); |
6422 | PEER_ATTR_INHERIT(peer, peer->group, pmax_threshold[afi][safi]); | |
6423 | PEER_ATTR_INHERIT(peer, peer->group, pmax_restart[afi][safi]); | |
04e1c5bb | 6424 | |
d62a17ae | 6425 | return 0; |
04e1c5bb | 6426 | } |
d62a17ae | 6427 | |
598ce6bd PM |
6428 | /* Remove flags and configuration from peer. */ |
6429 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_MAX_PREFIX); | |
6430 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_MAX_PREFIX_WARNING); | |
6431 | peer->pmax[afi][safi] = 0; | |
6432 | peer->pmax_threshold[afi][safi] = 0; | |
6433 | peer->pmax_restart[afi][safi] = 0; | |
6434 | ||
04e1c5bb | 6435 | /* |
598ce6bd PM |
6436 | * Remove flags and configuration from all peer-group members, unless |
6437 | * they are explicitely overriding peer-group configuration. | |
04e1c5bb | 6438 | */ |
6282637d RW |
6439 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
6440 | struct peer *member; | |
6441 | struct listnode *node; | |
598ce6bd | 6442 | |
6282637d RW |
6443 | for (ALL_LIST_ELEMENTS_RO(peer->group->peer, node, member)) { |
6444 | /* Skip peers with overridden configuration. */ | |
6445 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
6446 | PEER_FLAG_MAX_PREFIX)) | |
6447 | continue; | |
6448 | ||
6449 | /* Remove flag and configuration on peer-group member. | |
6450 | */ | |
6451 | UNSET_FLAG(member->af_flags[afi][safi], | |
6452 | PEER_FLAG_MAX_PREFIX); | |
6453 | UNSET_FLAG(member->af_flags[afi][safi], | |
6454 | PEER_FLAG_MAX_PREFIX_WARNING); | |
6455 | member->pmax[afi][safi] = 0; | |
6456 | member->pmax_threshold[afi][safi] = 0; | |
6457 | member->pmax_restart[afi][safi] = 0; | |
6458 | } | |
d62a17ae | 6459 | } |
598ce6bd | 6460 | |
d62a17ae | 6461 | return 0; |
718e3744 | 6462 | } |
6463 | ||
d62a17ae | 6464 | int is_ebgp_multihop_configured(struct peer *peer) |
718e3744 | 6465 | { |
d62a17ae | 6466 | struct peer_group *group; |
6467 | struct listnode *node, *nnode; | |
6468 | struct peer *peer1; | |
718e3744 | 6469 | |
d62a17ae | 6470 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
6471 | group = peer->group; | |
6472 | if ((peer_sort(peer) != BGP_PEER_IBGP) | |
c8d6f0d6 | 6473 | && (group->conf->ttl != BGP_DEFAULT_TTL)) |
d62a17ae | 6474 | return 1; |
718e3744 | 6475 | |
d62a17ae | 6476 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer1)) { |
6477 | if ((peer_sort(peer1) != BGP_PEER_IBGP) | |
c8d6f0d6 | 6478 | && (peer1->ttl != BGP_DEFAULT_TTL)) |
d62a17ae | 6479 | return 1; |
6480 | } | |
6481 | } else { | |
c8d6f0d6 DA |
6482 | if ((peer_sort(peer) != BGP_PEER_IBGP) |
6483 | && (peer->ttl != BGP_DEFAULT_TTL)) | |
d62a17ae | 6484 | return 1; |
6485 | } | |
6486 | return 0; | |
6487 | } | |
718e3744 | 6488 | |
d62a17ae | 6489 | /* Set # of hops between us and BGP peer. */ |
6490 | int peer_ttl_security_hops_set(struct peer *peer, int gtsm_hops) | |
6491 | { | |
6492 | struct peer_group *group; | |
6493 | struct listnode *node, *nnode; | |
6494 | int ret; | |
6495 | ||
6496 | zlog_debug("peer_ttl_security_hops_set: set gtsm_hops to %d for %s", | |
6497 | gtsm_hops, peer->host); | |
6498 | ||
6499 | /* We cannot configure ttl-security hops when ebgp-multihop is already | |
6500 | set. For non peer-groups, the check is simple. For peer-groups, | |
6501 | it's | |
6502 | slightly messy, because we need to check both the peer-group | |
6503 | structure | |
6504 | and all peer-group members for any trace of ebgp-multihop | |
6505 | configuration | |
6506 | before actually applying the ttl-security rules. Cisco really made a | |
6507 | mess of this configuration parameter, and OpenBGPD got it right. | |
6508 | */ | |
6509 | ||
6510 | if ((peer->gtsm_hops == 0) && (peer->sort != BGP_PEER_IBGP)) { | |
6511 | if (is_ebgp_multihop_configured(peer)) | |
6512 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
6513 | ||
6514 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
6515 | peer->gtsm_hops = gtsm_hops; | |
6516 | ||
6517 | /* Calling ebgp multihop also resets the session. | |
6518 | * On restart, NHT will get setup correctly as will the | |
6519 | * min & max ttls on the socket. The return value is | |
6520 | * irrelevant. | |
6521 | */ | |
6522 | ret = peer_ebgp_multihop_set(peer, MAXTTL); | |
6523 | ||
6524 | if (ret != 0) | |
6525 | return ret; | |
6526 | } else { | |
6527 | group = peer->group; | |
6528 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, | |
6529 | peer)) { | |
6530 | peer->gtsm_hops = group->conf->gtsm_hops; | |
6531 | ||
6532 | /* Calling ebgp multihop also resets the | |
6533 | * session. | |
6534 | * On restart, NHT will get setup correctly as | |
6535 | * will the | |
6536 | * min & max ttls on the socket. The return | |
6537 | * value is | |
6538 | * irrelevant. | |
6539 | */ | |
6540 | peer_ebgp_multihop_set(peer, MAXTTL); | |
6541 | } | |
6542 | } | |
6543 | } else { | |
6544 | /* Post the first gtsm setup or if its ibgp, maxttl setting | |
6545 | * isn't | |
6546 | * necessary, just set the minttl. | |
6547 | */ | |
6548 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
6549 | peer->gtsm_hops = gtsm_hops; | |
6550 | ||
6551 | if (peer->fd >= 0) | |
6552 | sockopt_minttl(peer->su.sa.sa_family, peer->fd, | |
6553 | MAXTTL + 1 - gtsm_hops); | |
6554 | if ((peer->status < Established) && peer->doppelganger | |
6555 | && (peer->doppelganger->fd >= 0)) | |
6556 | sockopt_minttl(peer->su.sa.sa_family, | |
6557 | peer->doppelganger->fd, | |
6558 | MAXTTL + 1 - gtsm_hops); | |
6559 | } else { | |
6560 | group = peer->group; | |
6561 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, | |
6562 | peer)) { | |
6563 | peer->gtsm_hops = group->conf->gtsm_hops; | |
6564 | ||
6565 | /* Change setting of existing peer | |
6566 | * established then change value (may break | |
6567 | * connectivity) | |
6568 | * not established yet (teardown session and | |
6569 | * restart) | |
6570 | * no session then do nothing (will get | |
6571 | * handled by next connection) | |
6572 | */ | |
6573 | if (peer->fd >= 0 && peer->gtsm_hops != 0) | |
6574 | sockopt_minttl( | |
6575 | peer->su.sa.sa_family, peer->fd, | |
6576 | MAXTTL + 1 - peer->gtsm_hops); | |
6577 | if ((peer->status < Established) | |
6578 | && peer->doppelganger | |
6579 | && (peer->doppelganger->fd >= 0)) | |
6580 | sockopt_minttl(peer->su.sa.sa_family, | |
6581 | peer->doppelganger->fd, | |
6582 | MAXTTL + 1 - gtsm_hops); | |
6583 | } | |
6584 | } | |
6585 | } | |
718e3744 | 6586 | |
d62a17ae | 6587 | return 0; |
718e3744 | 6588 | } |
6589 | ||
d62a17ae | 6590 | int peer_ttl_security_hops_unset(struct peer *peer) |
6591 | { | |
6592 | struct peer_group *group; | |
6593 | struct listnode *node, *nnode; | |
6594 | int ret = 0; | |
6595 | ||
6596 | zlog_debug("peer_ttl_security_hops_unset: set gtsm_hops to zero for %s", | |
6597 | peer->host); | |
6598 | ||
6599 | /* if a peer-group member, then reset to peer-group default rather than | |
6600 | * 0 */ | |
6601 | if (peer_group_active(peer)) | |
6602 | peer->gtsm_hops = peer->group->conf->gtsm_hops; | |
6603 | else | |
6604 | peer->gtsm_hops = 0; | |
6605 | ||
6606 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
6607 | /* Invoking ebgp_multihop_set will set the TTL back to the | |
6608 | * original | |
6609 | * value as well as restting the NHT and such. The session is | |
6610 | * reset. | |
6611 | */ | |
6612 | if (peer->sort == BGP_PEER_EBGP) | |
6613 | ret = peer_ebgp_multihop_unset(peer); | |
6614 | else { | |
6615 | if (peer->fd >= 0) | |
6616 | sockopt_minttl(peer->su.sa.sa_family, peer->fd, | |
6617 | 0); | |
6618 | ||
6619 | if ((peer->status < Established) && peer->doppelganger | |
6620 | && (peer->doppelganger->fd >= 0)) | |
6621 | sockopt_minttl(peer->su.sa.sa_family, | |
6622 | peer->doppelganger->fd, 0); | |
6623 | } | |
6624 | } else { | |
6625 | group = peer->group; | |
6626 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
6627 | peer->gtsm_hops = 0; | |
6628 | if (peer->sort == BGP_PEER_EBGP) | |
6629 | ret = peer_ebgp_multihop_unset(peer); | |
6630 | else { | |
6631 | if (peer->fd >= 0) | |
6632 | sockopt_minttl(peer->su.sa.sa_family, | |
6633 | peer->fd, 0); | |
6634 | ||
6635 | if ((peer->status < Established) | |
6636 | && peer->doppelganger | |
6637 | && (peer->doppelganger->fd >= 0)) | |
6638 | sockopt_minttl(peer->su.sa.sa_family, | |
6639 | peer->doppelganger->fd, | |
6640 | 0); | |
6641 | } | |
6642 | } | |
6643 | } | |
718e3744 | 6644 | |
d62a17ae | 6645 | return ret; |
6646 | } | |
6647 | ||
6648 | /* | |
6649 | * If peer clear is invoked in a loop for all peers on the BGP instance, | |
6650 | * it may end up freeing the doppelganger, and if this was the next node | |
6651 | * to the current node, we would end up accessing the freed next node. | |
6652 | * Pass along additional parameter which can be updated if next node | |
6653 | * is freed; only required when walking the peer list on BGP instance. | |
6654 | */ | |
6655 | int peer_clear(struct peer *peer, struct listnode **nnode) | |
6656 | { | |
6657 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_SHUTDOWN)) { | |
6658 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_PREFIX_OVERFLOW)) { | |
6659 | UNSET_FLAG(peer->sflags, PEER_STATUS_PREFIX_OVERFLOW); | |
6660 | if (peer->t_pmax_restart) { | |
6661 | BGP_TIMER_OFF(peer->t_pmax_restart); | |
6662 | if (bgp_debug_neighbor_events(peer)) | |
6663 | zlog_debug( | |
6664 | "%s Maximum-prefix restart timer canceled", | |
6665 | peer->host); | |
6666 | } | |
6667 | BGP_EVENT_ADD(peer, BGP_Start); | |
6668 | return 0; | |
6669 | } | |
6670 | ||
6671 | peer->v_start = BGP_INIT_START_TIMER; | |
6672 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
6673 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
6674 | BGP_NOTIFY_CEASE_ADMIN_RESET); | |
6675 | else | |
6676 | bgp_session_reset_safe(peer, nnode); | |
718e3744 | 6677 | } |
d62a17ae | 6678 | return 0; |
718e3744 | 6679 | } |
6b0655a2 | 6680 | |
d62a17ae | 6681 | int peer_clear_soft(struct peer *peer, afi_t afi, safi_t safi, |
6682 | enum bgp_clear_type stype) | |
718e3744 | 6683 | { |
d62a17ae | 6684 | struct peer_af *paf; |
718e3744 | 6685 | |
d62a17ae | 6686 | if (peer->status != Established) |
6687 | return 0; | |
718e3744 | 6688 | |
d62a17ae | 6689 | if (!peer->afc[afi][safi]) |
6690 | return BGP_ERR_AF_UNCONFIGURED; | |
718e3744 | 6691 | |
d62a17ae | 6692 | peer->rtt = sockopt_tcp_rtt(peer->fd); |
718e3744 | 6693 | |
d62a17ae | 6694 | if (stype == BGP_CLEAR_SOFT_OUT || stype == BGP_CLEAR_SOFT_BOTH) { |
6695 | /* Clear the "neighbor x.x.x.x default-originate" flag */ | |
6696 | paf = peer_af_find(peer, afi, safi); | |
6697 | if (paf && paf->subgroup | |
6698 | && CHECK_FLAG(paf->subgroup->sflags, | |
6699 | SUBGRP_STATUS_DEFAULT_ORIGINATE)) | |
6700 | UNSET_FLAG(paf->subgroup->sflags, | |
6701 | SUBGRP_STATUS_DEFAULT_ORIGINATE); | |
718e3744 | 6702 | |
d62a17ae | 6703 | bgp_announce_route(peer, afi, safi); |
6704 | } | |
718e3744 | 6705 | |
d62a17ae | 6706 | if (stype == BGP_CLEAR_SOFT_IN_ORF_PREFIX) { |
6707 | if (CHECK_FLAG(peer->af_cap[afi][safi], | |
6708 | PEER_CAP_ORF_PREFIX_SM_ADV) | |
6709 | && (CHECK_FLAG(peer->af_cap[afi][safi], | |
6710 | PEER_CAP_ORF_PREFIX_RM_RCV) | |
6711 | || CHECK_FLAG(peer->af_cap[afi][safi], | |
6712 | PEER_CAP_ORF_PREFIX_RM_OLD_RCV))) { | |
6713 | struct bgp_filter *filter = &peer->filter[afi][safi]; | |
d7c0a89a | 6714 | uint8_t prefix_type; |
d62a17ae | 6715 | |
6716 | if (CHECK_FLAG(peer->af_cap[afi][safi], | |
6717 | PEER_CAP_ORF_PREFIX_RM_RCV)) | |
6718 | prefix_type = ORF_TYPE_PREFIX; | |
6719 | else | |
6720 | prefix_type = ORF_TYPE_PREFIX_OLD; | |
6721 | ||
6722 | if (filter->plist[FILTER_IN].plist) { | |
6723 | if (CHECK_FLAG(peer->af_sflags[afi][safi], | |
6724 | PEER_STATUS_ORF_PREFIX_SEND)) | |
6725 | bgp_route_refresh_send( | |
6726 | peer, afi, safi, prefix_type, | |
6727 | REFRESH_DEFER, 1); | |
6728 | bgp_route_refresh_send(peer, afi, safi, | |
6729 | prefix_type, | |
6730 | REFRESH_IMMEDIATE, 0); | |
6731 | } else { | |
6732 | if (CHECK_FLAG(peer->af_sflags[afi][safi], | |
6733 | PEER_STATUS_ORF_PREFIX_SEND)) | |
6734 | bgp_route_refresh_send( | |
6735 | peer, afi, safi, prefix_type, | |
6736 | REFRESH_IMMEDIATE, 1); | |
6737 | else | |
6738 | bgp_route_refresh_send(peer, afi, safi, | |
6739 | 0, 0, 0); | |
6740 | } | |
6741 | return 0; | |
6742 | } | |
6743 | } | |
718e3744 | 6744 | |
d62a17ae | 6745 | if (stype == BGP_CLEAR_SOFT_IN || stype == BGP_CLEAR_SOFT_BOTH |
6746 | || stype == BGP_CLEAR_SOFT_IN_ORF_PREFIX) { | |
6747 | /* If neighbor has soft reconfiguration inbound flag. | |
6748 | Use Adj-RIB-In database. */ | |
6749 | if (CHECK_FLAG(peer->af_flags[afi][safi], | |
6750 | PEER_FLAG_SOFT_RECONFIG)) | |
6751 | bgp_soft_reconfig_in(peer, afi, safi); | |
6752 | else { | |
6753 | /* If neighbor has route refresh capability, send route | |
6754 | refresh | |
6755 | message to the peer. */ | |
6756 | if (CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_OLD_RCV) | |
6757 | || CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_NEW_RCV)) | |
6758 | bgp_route_refresh_send(peer, afi, safi, 0, 0, | |
6759 | 0); | |
6760 | else | |
6761 | return BGP_ERR_SOFT_RECONFIG_UNCONFIGURED; | |
6762 | } | |
6763 | } | |
6764 | return 0; | |
718e3744 | 6765 | } |
6766 | ||
d62a17ae | 6767 | /* Display peer uptime.*/ |
9f049418 | 6768 | char *peer_uptime(time_t uptime2, char *buf, size_t len, bool use_json, |
d62a17ae | 6769 | json_object *json) |
6770 | { | |
6771 | time_t uptime1, epoch_tbuf; | |
6772 | struct tm *tm; | |
6773 | ||
d62a17ae | 6774 | /* If there is no connection has been done before print `never'. */ |
6775 | if (uptime2 == 0) { | |
6776 | if (use_json) { | |
6777 | json_object_string_add(json, "peerUptime", "never"); | |
6778 | json_object_int_add(json, "peerUptimeMsec", 0); | |
6779 | } else | |
6780 | snprintf(buf, len, "never"); | |
6781 | return buf; | |
6782 | } | |
718e3744 | 6783 | |
d62a17ae | 6784 | /* Get current time. */ |
6785 | uptime1 = bgp_clock(); | |
6786 | uptime1 -= uptime2; | |
6787 | tm = gmtime(&uptime1); | |
718e3744 | 6788 | |
d62a17ae | 6789 | if (uptime1 < ONE_DAY_SECOND) |
6790 | snprintf(buf, len, "%02d:%02d:%02d", tm->tm_hour, tm->tm_min, | |
6791 | tm->tm_sec); | |
6792 | else if (uptime1 < ONE_WEEK_SECOND) | |
6793 | snprintf(buf, len, "%dd%02dh%02dm", tm->tm_yday, tm->tm_hour, | |
6794 | tm->tm_min); | |
6795 | else if (uptime1 < ONE_YEAR_SECOND) | |
6796 | snprintf(buf, len, "%02dw%dd%02dh", tm->tm_yday / 7, | |
6797 | tm->tm_yday - ((tm->tm_yday / 7) * 7), tm->tm_hour); | |
6798 | else | |
6799 | snprintf(buf, len, "%02dy%02dw%dd", tm->tm_year - 70, | |
6800 | tm->tm_yday / 7, | |
6801 | tm->tm_yday - ((tm->tm_yday / 7) * 7)); | |
6802 | ||
6803 | if (use_json) { | |
6804 | epoch_tbuf = time(NULL) - uptime1; | |
6805 | json_object_string_add(json, "peerUptime", buf); | |
6806 | json_object_int_add(json, "peerUptimeMsec", uptime1 * 1000); | |
6807 | json_object_int_add(json, "peerUptimeEstablishedEpoch", | |
6808 | epoch_tbuf); | |
6809 | } | |
718e3744 | 6810 | |
d62a17ae | 6811 | return buf; |
718e3744 | 6812 | } |
6813 | ||
c2d020ad | 6814 | void bgp_master_init(struct thread_master *master, const int buffer_size) |
718e3744 | 6815 | { |
d62a17ae | 6816 | qobj_init(); |
0e64d123 | 6817 | |
d62a17ae | 6818 | memset(&bgp_master, 0, sizeof(struct bgp_master)); |
718e3744 | 6819 | |
d62a17ae | 6820 | bm = &bgp_master; |
6821 | bm->bgp = list_new(); | |
6822 | bm->listen_sockets = list_new(); | |
6823 | bm->port = BGP_PORT_DEFAULT; | |
6824 | bm->master = master; | |
6825 | bm->start_time = bgp_clock(); | |
6826 | bm->t_rmap_update = NULL; | |
6827 | bm->rmap_update_timer = RMAP_DEFAULT_UPDATE_TIMER; | |
97b4a0ec | 6828 | bm->terminating = false; |
c2d020ad | 6829 | bm->socket_buffer = buffer_size; |
495f0b13 | 6830 | |
d62a17ae | 6831 | bgp_process_queue_init(); |
b8fd6a15 | 6832 | |
48ecf8f5 | 6833 | bgp_mac_init(); |
e9eb5f63 | 6834 | /* init the rd id space. |
6835 | assign 0th index in the bitfield, | |
523cafc4 | 6836 | so that we start with id 1 |
6837 | */ | |
e9eb5f63 | 6838 | bf_init(bm->rd_idspace, UINT16_MAX); |
6839 | bf_assign_zero_index(bm->rd_idspace); | |
6840 | ||
955bfd98 | 6841 | /* mpls label dynamic allocation pool */ |
e70e9f8e | 6842 | bgp_lp_init(bm->master, &bm->labelpool); |
955bfd98 | 6843 | |
d62a17ae | 6844 | QOBJ_REG(bm, bgp_master); |
718e3744 | 6845 | } |
200df115 | 6846 | |
ad4cbda1 | 6847 | /* |
009b18fc | 6848 | * Free up connected routes and interfaces for a BGP instance. Invoked upon |
6849 | * instance delete (non-default only) or BGP exit. | |
ad4cbda1 | 6850 | */ |
d62a17ae | 6851 | static void bgp_if_finish(struct bgp *bgp) |
ad4cbda1 | 6852 | { |
ee66b77f | 6853 | struct vrf *vrf; |
d62a17ae | 6854 | struct interface *ifp; |
6855 | ||
ee66b77f PG |
6856 | vrf = bgp_vrf_lookup_by_instance_type(bgp); |
6857 | ||
f4e14fdb | 6858 | if (bgp->inst_type == BGP_INSTANCE_TYPE_VIEW || !vrf) |
d62a17ae | 6859 | return; |
ad4cbda1 | 6860 | |
451fda4f | 6861 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 6862 | struct listnode *c_node, *c_nnode; |
6863 | struct connected *c; | |
ad4cbda1 | 6864 | |
d62a17ae | 6865 | for (ALL_LIST_ELEMENTS(ifp->connected, c_node, c_nnode, c)) |
6866 | bgp_connected_delete(bgp, c); | |
6867 | } | |
ad4cbda1 | 6868 | } |
6b0655a2 | 6869 | |
d62a17ae | 6870 | static void bgp_viewvrf_autocomplete(vector comps, struct cmd_token *token) |
18c57037 | 6871 | { |
d62a17ae | 6872 | struct vrf *vrf = NULL; |
6873 | struct listnode *next; | |
6874 | struct bgp *bgp; | |
18c57037 | 6875 | |
6a8ca00f PG |
6876 | RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) |
6877 | vector_set(comps, XSTRDUP(MTYPE_COMPLETION, vrf->name)); | |
18c57037 | 6878 | |
d62a17ae | 6879 | for (ALL_LIST_ELEMENTS_RO(bm->bgp, next, bgp)) { |
6880 | if (bgp->inst_type != BGP_INSTANCE_TYPE_VIEW) | |
6881 | continue; | |
18c57037 | 6882 | |
d62a17ae | 6883 | vector_set(comps, XSTRDUP(MTYPE_COMPLETION, bgp->name)); |
6884 | } | |
18c57037 DS |
6885 | } |
6886 | ||
2ed9fe4a DL |
6887 | static void bgp_instasn_autocomplete(vector comps, struct cmd_token *token) |
6888 | { | |
6889 | struct listnode *next, *next2; | |
6890 | struct bgp *bgp, *bgp2; | |
6891 | char buf[11]; | |
6892 | ||
6893 | for (ALL_LIST_ELEMENTS_RO(bm->bgp, next, bgp)) { | |
6894 | /* deduplicate */ | |
6895 | for (ALL_LIST_ELEMENTS_RO(bm->bgp, next2, bgp2)) { | |
6896 | if (bgp2->as == bgp->as) | |
6897 | break; | |
6898 | if (bgp2 == bgp) | |
6899 | break; | |
6900 | } | |
6901 | if (bgp2 != bgp) | |
6902 | continue; | |
6903 | ||
6904 | snprintf(buf, sizeof(buf), "%u", bgp->as); | |
6905 | vector_set(comps, XSTRDUP(MTYPE_COMPLETION, buf)); | |
6906 | } | |
6907 | } | |
6908 | ||
18c57037 | 6909 | static const struct cmd_variable_handler bgp_viewvrf_var_handlers[] = { |
d62a17ae | 6910 | {.tokenname = "VIEWVRFNAME", .completions = bgp_viewvrf_autocomplete}, |
2ed9fe4a | 6911 | {.varname = "instasn", .completions = bgp_instasn_autocomplete}, |
d62a17ae | 6912 | {.completions = NULL}, |
18c57037 DS |
6913 | }; |
6914 | ||
1ac267a2 DL |
6915 | struct frr_pthread *bgp_pth_io; |
6916 | struct frr_pthread *bgp_pth_ka; | |
6917 | ||
4d762f26 | 6918 | static void bgp_pthreads_init(void) |
2d4ee774 | 6919 | { |
1ac267a2 DL |
6920 | assert(!bgp_pth_io); |
6921 | assert(!bgp_pth_ka); | |
6922 | ||
a715eab3 | 6923 | struct frr_pthread_attr io = { |
a715eab3 QY |
6924 | .start = frr_pthread_attr_default.start, |
6925 | .stop = frr_pthread_attr_default.stop, | |
a715eab3 QY |
6926 | }; |
6927 | struct frr_pthread_attr ka = { | |
a715eab3 QY |
6928 | .start = bgp_keepalives_start, |
6929 | .stop = bgp_keepalives_stop, | |
a715eab3 | 6930 | }; |
1ac267a2 DL |
6931 | bgp_pth_io = frr_pthread_new(&io, "BGP I/O thread", "bgpd_io"); |
6932 | bgp_pth_ka = frr_pthread_new(&ka, "BGP Keepalives thread", "bgpd_ka"); | |
419dfe6a QY |
6933 | } |
6934 | ||
4d762f26 | 6935 | void bgp_pthreads_run(void) |
419dfe6a | 6936 | { |
1ac267a2 DL |
6937 | frr_pthread_run(bgp_pth_io, NULL); |
6938 | frr_pthread_run(bgp_pth_ka, NULL); | |
88b24dee | 6939 | |
a715eab3 | 6940 | /* Wait until threads are ready. */ |
1ac267a2 DL |
6941 | frr_pthread_wait_running(bgp_pth_io); |
6942 | frr_pthread_wait_running(bgp_pth_ka); | |
2d4ee774 QY |
6943 | } |
6944 | ||
4d762f26 | 6945 | void bgp_pthreads_finish(void) |
2d4ee774 | 6946 | { |
0ca8b79f | 6947 | frr_pthread_stop_all(); |
2d4ee774 QY |
6948 | } |
6949 | ||
f533be73 | 6950 | void bgp_init(unsigned short instance) |
718e3744 | 6951 | { |
fc9a856f | 6952 | |
d62a17ae | 6953 | /* allocates some vital data structures used by peer commands in |
6954 | * vty_init */ | |
718e3744 | 6955 | |
419dfe6a QY |
6956 | /* pre-init pthreads */ |
6957 | bgp_pthreads_init(); | |
6958 | ||
d62a17ae | 6959 | /* Init zebra. */ |
f533be73 | 6960 | bgp_zebra_init(bm->master, instance); |
718e3744 | 6961 | |
65efcfce | 6962 | #if ENABLE_BGP_VNC |
d62a17ae | 6963 | vnc_zebra_init(bm->master); |
65efcfce LB |
6964 | #endif |
6965 | ||
d62a17ae | 6966 | /* BGP VTY commands installation. */ |
6967 | bgp_vty_init(); | |
6968 | ||
6969 | /* BGP inits. */ | |
6970 | bgp_attr_init(); | |
6971 | bgp_debug_init(); | |
6972 | bgp_dump_init(); | |
6973 | bgp_route_init(); | |
6974 | bgp_route_map_init(); | |
6975 | bgp_scan_vty_init(); | |
6976 | bgp_mplsvpn_init(); | |
65efcfce | 6977 | #if ENABLE_BGP_VNC |
d62a17ae | 6978 | rfapi_init(); |
65efcfce | 6979 | #endif |
d62a17ae | 6980 | bgp_ethernetvpn_init(); |
7c40bf39 | 6981 | bgp_flowspec_vty_init(); |
d62a17ae | 6982 | |
6983 | /* Access list initialize. */ | |
6984 | access_list_init(); | |
6985 | access_list_add_hook(peer_distribute_update); | |
6986 | access_list_delete_hook(peer_distribute_update); | |
6987 | ||
6988 | /* Filter list initialize. */ | |
6989 | bgp_filter_init(); | |
6990 | as_list_add_hook(peer_aslist_add); | |
6991 | as_list_delete_hook(peer_aslist_del); | |
6992 | ||
6993 | /* Prefix list initialize.*/ | |
6994 | prefix_list_init(); | |
6995 | prefix_list_add_hook(peer_prefix_list_update); | |
6996 | prefix_list_delete_hook(peer_prefix_list_update); | |
6997 | ||
6998 | /* Community list initialize. */ | |
6999 | bgp_clist = community_list_init(); | |
7000 | ||
7001 | /* BFD init */ | |
7002 | bgp_bfd_init(); | |
7003 | ||
7004 | cmd_variable_handler_register(bgp_viewvrf_var_handlers); | |
7005 | } | |
7006 | ||
7007 | void bgp_terminate(void) | |
7008 | { | |
7009 | struct bgp *bgp; | |
7010 | struct peer *peer; | |
7011 | struct listnode *node, *nnode; | |
7012 | struct listnode *mnode, *mnnode; | |
7013 | ||
7014 | QOBJ_UNREG(bm); | |
7015 | ||
7016 | /* Close the listener sockets first as this prevents peers from | |
7017 | * attempting | |
7018 | * to reconnect on receiving the peer unconfig message. In the presence | |
7019 | * of a large number of peers this will ensure that no peer is left with | |
7020 | * a dangling connection | |
7021 | */ | |
7022 | /* reverse bgp_master_init */ | |
7023 | bgp_close(); | |
c3004bc4 | 7024 | |
d62a17ae | 7025 | if (bm->listen_sockets) |
6a154c88 | 7026 | list_delete(&bm->listen_sockets); |
d62a17ae | 7027 | |
7028 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) | |
7029 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
7030 | if (peer->status == Established | |
7031 | || peer->status == OpenSent | |
7032 | || peer->status == OpenConfirm) | |
7033 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
7034 | BGP_NOTIFY_CEASE_PEER_UNCONFIG); | |
7035 | ||
e208c8f9 DS |
7036 | if (bm->process_main_queue) |
7037 | work_queue_free_and_null(&bm->process_main_queue); | |
d62a17ae | 7038 | |
7039 | if (bm->t_rmap_update) | |
7040 | BGP_TIMER_OFF(bm->t_rmap_update); | |
955bfd98 | 7041 | |
48ecf8f5 | 7042 | bgp_mac_finish(); |
545acafb | 7043 | } |
dcc1615e DD |
7044 | |
7045 | struct peer *peer_lookup_in_view(struct vty *vty, struct bgp *bgp, | |
7046 | const char *ip_str, bool use_json) | |
7047 | { | |
7048 | int ret; | |
7049 | struct peer *peer; | |
7050 | union sockunion su; | |
7051 | ||
7052 | /* Get peer sockunion. */ | |
7053 | ret = str2sockunion(ip_str, &su); | |
7054 | if (ret < 0) { | |
7055 | peer = peer_lookup_by_conf_if(bgp, ip_str); | |
7056 | if (!peer) { | |
7057 | peer = peer_lookup_by_hostname(bgp, ip_str); | |
7058 | ||
7059 | if (!peer) { | |
7060 | if (use_json) { | |
7061 | json_object *json_no = NULL; | |
7062 | json_no = json_object_new_object(); | |
7063 | json_object_string_add( | |
7064 | json_no, | |
7065 | "malformedAddressOrName", | |
7066 | ip_str); | |
7067 | vty_out(vty, "%s\n", | |
7068 | json_object_to_json_string_ext( | |
7069 | json_no, | |
7070 | JSON_C_TO_STRING_PRETTY)); | |
7071 | json_object_free(json_no); | |
7072 | } else | |
7073 | vty_out(vty, | |
7074 | "%% Malformed address or name: %s\n", | |
7075 | ip_str); | |
7076 | return NULL; | |
7077 | } | |
7078 | } | |
7079 | return peer; | |
7080 | } | |
7081 | ||
7082 | /* Peer structure lookup. */ | |
7083 | peer = peer_lookup(bgp, &su); | |
7084 | if (!peer) { | |
7085 | if (use_json) { | |
7086 | json_object *json_no = NULL; | |
7087 | json_no = json_object_new_object(); | |
7088 | json_object_string_add(json_no, "warning", | |
7089 | "No such neighbor in this view/vrf"); | |
7090 | vty_out(vty, "%s\n", | |
7091 | json_object_to_json_string_ext( | |
7092 | json_no, JSON_C_TO_STRING_PRETTY)); | |
7093 | json_object_free(json_no); | |
7094 | } else | |
7095 | vty_out(vty, "No such neighbor in this view/vrf\n"); | |
7096 | return NULL; | |
7097 | } | |
7098 | ||
7099 | return peer; | |
7100 | } | |
7101 |