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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" |
4ab46701 | 46 | #include "lib/sockopt.h" |
0ca8b79f | 47 | #include "frr_pthread.h" |
92708db6 | 48 | #include "bitfield.h" |
718e3744 | 49 | |
50 | #include "bgpd/bgpd.h" | |
51 | #include "bgpd/bgp_table.h" | |
52 | #include "bgpd/bgp_aspath.h" | |
53 | #include "bgpd/bgp_route.h" | |
54 | #include "bgpd/bgp_dump.h" | |
55 | #include "bgpd/bgp_debug.h" | |
14454c9f | 56 | #include "bgpd/bgp_errors.h" |
718e3744 | 57 | #include "bgpd/bgp_community.h" |
ed0e57e3 | 58 | #include "bgpd/bgp_community_alias.h" |
7f7940e6 | 59 | #include "bgpd/bgp_conditional_adv.h" |
718e3744 | 60 | #include "bgpd/bgp_attr.h" |
61 | #include "bgpd/bgp_regex.h" | |
62 | #include "bgpd/bgp_clist.h" | |
63 | #include "bgpd/bgp_fsm.h" | |
64 | #include "bgpd/bgp_packet.h" | |
65 | #include "bgpd/bgp_zebra.h" | |
66 | #include "bgpd/bgp_open.h" | |
67 | #include "bgpd/bgp_filter.h" | |
68 | #include "bgpd/bgp_nexthop.h" | |
69 | #include "bgpd/bgp_damp.h" | |
70 | #include "bgpd/bgp_mplsvpn.h" | |
49e5a4a0 | 71 | #ifdef ENABLE_BGP_VNC |
f8b6f499 LB |
72 | #include "bgpd/rfapi/bgp_rfapi_cfg.h" |
73 | #include "bgpd/rfapi/rfapi_backend.h" | |
65efcfce | 74 | #endif |
7ef5a232 | 75 | #include "bgpd/bgp_evpn.h" |
718e3744 | 76 | #include "bgpd/bgp_advertise.h" |
77 | #include "bgpd/bgp_network.h" | |
78 | #include "bgpd/bgp_vty.h" | |
165b5fff | 79 | #include "bgpd/bgp_mpath.h" |
fc9a856f | 80 | #include "bgpd/bgp_nht.h" |
3f9c7369 | 81 | #include "bgpd/bgp_updgrp.h" |
c43ed2e4 | 82 | #include "bgpd/bgp_bfd.h" |
4a1ab8e4 | 83 | #include "bgpd/bgp_memory.h" |
784d3a42 | 84 | #include "bgpd/bgp_evpn_vty.h" |
2d4ee774 | 85 | #include "bgpd/bgp_keepalives.h" |
56257a44 | 86 | #include "bgpd/bgp_io.h" |
41d6d607 | 87 | #include "bgpd/bgp_ecommunity.h" |
7c40bf39 | 88 | #include "bgpd/bgp_flowspec.h" |
955bfd98 | 89 | #include "bgpd/bgp_labelpool.h" |
f3d32faa | 90 | #include "bgpd/bgp_pbr.h" |
dcc68b5e | 91 | #include "bgpd/bgp_addpath.h" |
85c8d83b | 92 | #include "bgpd/bgp_evpn_private.h" |
c44ab6f1 | 93 | #include "bgpd/bgp_evpn_mh.h" |
48ecf8f5 | 94 | #include "bgpd/bgp_mac.h" |
70cd87ca | 95 | #include "bgpd/bgp_orr.h" |
73d70fa6 DL |
96 | |
97 | DEFINE_MTYPE_STATIC(BGPD, PEER_TX_SHUTDOWN_MSG, "Peer shutdown message (TX)"); | |
85c8d83b | 98 | DEFINE_MTYPE_STATIC(BGPD, BGP_EVPN_INFO, "BGP EVPN instance information"); |
96244aca DL |
99 | DEFINE_QOBJ_TYPE(bgp_master); |
100 | DEFINE_QOBJ_TYPE(bgp); | |
101 | DEFINE_QOBJ_TYPE(peer); | |
8451921b | 102 | DEFINE_HOOK(bgp_inst_delete, (struct bgp *bgp), (bgp)); |
19df7279 | 103 | |
718e3744 | 104 | /* BGP process wide configuration. */ |
105 | static struct bgp_master bgp_master; | |
106 | ||
107 | /* BGP process wide configuration pointer to export. */ | |
108 | struct bgp_master *bm; | |
109 | ||
110 | /* BGP community-list. */ | |
111 | struct community_list_handler *bgp_clist; | |
6b0655a2 | 112 | |
37fe7731 DS |
113 | unsigned int multipath_num = MULTIPATH_NUM; |
114 | ||
c208c586 S |
115 | /* Number of bgp instances configured for suppress fib config */ |
116 | unsigned int bgp_suppress_fib_count; | |
117 | ||
d62a17ae | 118 | static void bgp_if_finish(struct bgp *bgp); |
cc32742c | 119 | static void peer_drop_dynamic_neighbor(struct peer *peer); |
b33adb7c | 120 | |
ad4cbda1 | 121 | extern struct zclient *zclient; |
1ff9a340 | 122 | |
e5619c28 PG |
123 | /* handle main socket creation or deletion */ |
124 | static int bgp_check_main_socket(bool create, struct bgp *bgp) | |
125 | { | |
126 | static int bgp_server_main_created; | |
85e9cd9a AMR |
127 | struct listnode *node; |
128 | char *address; | |
e5619c28 | 129 | |
d8729f8c | 130 | if (create) { |
e5619c28 PG |
131 | if (bgp_server_main_created) |
132 | return 0; | |
85e9cd9a AMR |
133 | if (list_isempty(bm->addresses)) { |
134 | if (bgp_socket(bgp, bm->port, NULL) < 0) | |
135 | return BGP_ERR_INVALID_VALUE; | |
136 | } else { | |
137 | for (ALL_LIST_ELEMENTS_RO(bm->addresses, node, address)) | |
138 | if (bgp_socket(bgp, bm->port, address) < 0) | |
139 | return BGP_ERR_INVALID_VALUE; | |
140 | } | |
e5619c28 PG |
141 | bgp_server_main_created = 1; |
142 | return 0; | |
143 | } | |
144 | if (!bgp_server_main_created) | |
145 | return 0; | |
e5619c28 PG |
146 | bgp_close(); |
147 | bgp_server_main_created = 0; | |
148 | return 0; | |
149 | } | |
150 | ||
d62a17ae | 151 | void bgp_session_reset(struct peer *peer) |
1ff9a340 | 152 | { |
d62a17ae | 153 | if (peer->doppelganger && (peer->doppelganger->status != Deleted) |
154 | && !(CHECK_FLAG(peer->doppelganger->flags, PEER_FLAG_CONFIG_NODE))) | |
155 | peer_delete(peer->doppelganger); | |
1ff9a340 | 156 | |
d62a17ae | 157 | BGP_EVENT_ADD(peer, BGP_Stop); |
1ff9a340 DS |
158 | } |
159 | ||
160 | /* | |
161 | * During session reset, we may delete the doppelganger peer, which would | |
162 | * be the next node to the current node. If the session reset was invoked | |
163 | * during walk of peer list, we would end up accessing the freed next | |
164 | * node. This function moves the next node along. | |
165 | */ | |
d62a17ae | 166 | static void bgp_session_reset_safe(struct peer *peer, struct listnode **nnode) |
1ff9a340 | 167 | { |
d62a17ae | 168 | struct listnode *n; |
169 | struct peer *npeer; | |
1ff9a340 | 170 | |
d62a17ae | 171 | n = (nnode) ? *nnode : NULL; |
172 | npeer = (n) ? listgetdata(n) : NULL; | |
1ff9a340 | 173 | |
d62a17ae | 174 | if (peer->doppelganger && (peer->doppelganger->status != Deleted) |
175 | && !(CHECK_FLAG(peer->doppelganger->flags, | |
176 | PEER_FLAG_CONFIG_NODE))) { | |
177 | if (peer->doppelganger == npeer) | |
178 | /* nnode and *nnode are confirmed to be non-NULL here */ | |
179 | *nnode = (*nnode)->next; | |
180 | peer_delete(peer->doppelganger); | |
181 | } | |
1ff9a340 | 182 | |
d62a17ae | 183 | BGP_EVENT_ADD(peer, BGP_Stop); |
1ff9a340 DS |
184 | } |
185 | ||
718e3744 | 186 | /* BGP global flag manipulation. */ |
d62a17ae | 187 | int bgp_option_set(int flag) |
188 | { | |
189 | switch (flag) { | |
190 | case BGP_OPT_NO_FIB: | |
d62a17ae | 191 | case BGP_OPT_NO_LISTEN: |
0b014ea6 | 192 | case BGP_OPT_NO_ZEBRA: |
d62a17ae | 193 | SET_FLAG(bm->options, flag); |
194 | break; | |
195 | default: | |
196 | return BGP_ERR_INVALID_FLAG; | |
197 | } | |
198 | return 0; | |
199 | } | |
200 | ||
201 | int bgp_option_unset(int flag) | |
202 | { | |
203 | switch (flag) { | |
d62a17ae | 204 | /* Fall through. */ |
0b014ea6 | 205 | case BGP_OPT_NO_ZEBRA: |
d62a17ae | 206 | case BGP_OPT_NO_FIB: |
d62a17ae | 207 | UNSET_FLAG(bm->options, flag); |
208 | break; | |
209 | default: | |
210 | return BGP_ERR_INVALID_FLAG; | |
211 | } | |
212 | return 0; | |
213 | } | |
214 | ||
215 | int bgp_option_check(int flag) | |
216 | { | |
217 | return CHECK_FLAG(bm->options, flag); | |
718e3744 | 218 | } |
6b0655a2 | 219 | |
c163f297 DS |
220 | /* set the bgp no-rib option during runtime and remove installed routes */ |
221 | void bgp_option_norib_set_runtime(void) | |
222 | { | |
223 | struct bgp *bgp; | |
224 | struct listnode *node; | |
225 | afi_t afi; | |
226 | safi_t safi; | |
227 | ||
228 | if (bgp_option_check(BGP_OPT_NO_FIB)) | |
229 | return; | |
230 | ||
231 | bgp_option_set(BGP_OPT_NO_FIB); | |
232 | ||
233 | zlog_info("Disabled BGP route installation to RIB (Zebra)"); | |
234 | ||
235 | for (ALL_LIST_ELEMENTS_RO(bm->bgp, node, bgp)) { | |
56b91d10 DS |
236 | FOREACH_AFI_SAFI (afi, safi) { |
237 | /* | |
238 | * Stop a crash, more work is needed | |
239 | * here to properly add/remove these types of | |
240 | * routes from zebra. | |
241 | */ | |
242 | if (!bgp_fibupd_safi(safi)) | |
243 | continue; | |
244 | ||
c163f297 | 245 | bgp_zebra_withdraw_table_all_subtypes(bgp, afi, safi); |
56b91d10 | 246 | } |
c163f297 DS |
247 | } |
248 | ||
249 | zlog_info("All routes have been withdrawn from RIB (Zebra)"); | |
250 | } | |
251 | ||
252 | /* unset the bgp no-rib option during runtime and announce routes to Zebra */ | |
253 | void bgp_option_norib_unset_runtime(void) | |
254 | { | |
255 | struct bgp *bgp; | |
256 | struct listnode *node; | |
257 | afi_t afi; | |
258 | safi_t safi; | |
259 | ||
260 | if (!bgp_option_check(BGP_OPT_NO_FIB)) | |
261 | return; | |
262 | ||
263 | bgp_option_unset(BGP_OPT_NO_FIB); | |
264 | ||
265 | zlog_info("Enabled BGP route installation to RIB (Zebra)"); | |
266 | ||
267 | for (ALL_LIST_ELEMENTS_RO(bm->bgp, node, bgp)) { | |
56b91d10 DS |
268 | FOREACH_AFI_SAFI (afi, safi) { |
269 | /* | |
270 | * Stop a crash, more work is needed | |
271 | * here to properly add/remove these types | |
272 | * of routes from zebra | |
273 | */ | |
274 | if (!bgp_fibupd_safi(safi)) | |
275 | continue; | |
276 | ||
c163f297 | 277 | bgp_zebra_announce_table_all_subtypes(bgp, afi, safi); |
56b91d10 | 278 | } |
c163f297 DS |
279 | } |
280 | ||
281 | zlog_info("All routes have been installed in RIB (Zebra)"); | |
282 | } | |
283 | ||
718e3744 | 284 | /* Internal function to set BGP structure configureation flag. */ |
d62a17ae | 285 | static void bgp_config_set(struct bgp *bgp, int config) |
718e3744 | 286 | { |
d62a17ae | 287 | SET_FLAG(bgp->config, config); |
718e3744 | 288 | } |
289 | ||
d62a17ae | 290 | static void bgp_config_unset(struct bgp *bgp, int config) |
718e3744 | 291 | { |
d62a17ae | 292 | UNSET_FLAG(bgp->config, config); |
718e3744 | 293 | } |
294 | ||
d62a17ae | 295 | static int bgp_config_check(struct bgp *bgp, int config) |
718e3744 | 296 | { |
d62a17ae | 297 | return CHECK_FLAG(bgp->config, config); |
718e3744 | 298 | } |
6b0655a2 | 299 | |
e65fe398 MS |
300 | /* Set BGP router identifier; distinguish between explicit config and other |
301 | * cases. | |
302 | */ | |
303 | static int bgp_router_id_set(struct bgp *bgp, const struct in_addr *id, | |
304 | bool is_config) | |
718e3744 | 305 | { |
d62a17ae | 306 | struct peer *peer; |
307 | struct listnode *node, *nnode; | |
718e3744 | 308 | |
d62a17ae | 309 | if (IPV4_ADDR_SAME(&bgp->router_id, id)) |
310 | return 0; | |
718e3744 | 311 | |
d62a17ae | 312 | /* EVPN uses router id in RD, withdraw them */ |
94c2f693 | 313 | if (is_evpn_enabled()) |
2951a7a4 | 314 | bgp_evpn_handle_router_id_update(bgp, true); |
2d48ee25 | 315 | |
2951a7a4 | 316 | vpn_handle_router_id_update(bgp, true, is_config); |
636f7608 | 317 | |
d62a17ae | 318 | IPV4_ADDR_COPY(&bgp->router_id, id); |
718e3744 | 319 | |
d62a17ae | 320 | /* Set all peer's local identifier with this value. */ |
321 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
322 | IPV4_ADDR_COPY(&peer->local_id, id); | |
718e3744 | 323 | |
d62a17ae | 324 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
325 | peer->last_reset = PEER_DOWN_RID_CHANGE; | |
326 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
327 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
328 | } | |
329 | } | |
14c1a7bf | 330 | |
d62a17ae | 331 | /* EVPN uses router id in RD, update them */ |
94c2f693 | 332 | if (is_evpn_enabled()) |
2951a7a4 | 333 | bgp_evpn_handle_router_id_update(bgp, false); |
2d48ee25 | 334 | |
2951a7a4 | 335 | vpn_handle_router_id_update(bgp, false, is_config); |
636f7608 | 336 | |
d62a17ae | 337 | return 0; |
718e3744 | 338 | } |
339 | ||
d62a17ae | 340 | void bgp_router_id_zebra_bump(vrf_id_t vrf_id, const struct prefix *router_id) |
0e6cb743 | 341 | { |
d62a17ae | 342 | struct listnode *node, *nnode; |
343 | struct bgp *bgp; | |
36dc7588 | 344 | struct in_addr *addr = NULL; |
345 | ||
346 | if (router_id != NULL) | |
347 | addr = (struct in_addr *)&(router_id->u.prefix4); | |
0e6cb743 | 348 | |
d62a17ae | 349 | if (vrf_id == VRF_DEFAULT) { |
350 | /* Router-id change for default VRF has to also update all | |
351 | * views. */ | |
352 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) { | |
353 | if (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) | |
354 | continue; | |
0e6cb743 | 355 | |
36dc7588 | 356 | if (addr) |
357 | bgp->router_id_zebra = *addr; | |
358 | else | |
359 | addr = &bgp->router_id_zebra; | |
360 | ||
361 | if (!bgp->router_id_static.s_addr) { | |
362 | /* Router ID is updated if there are no active | |
363 | * peer sessions | |
364 | */ | |
365 | if (bgp->established_peers == 0) { | |
366 | if (BGP_DEBUG(zebra, ZEBRA)) | |
137147c6 | 367 | zlog_debug( |
23d0a753 | 368 | "RID change : vrf %s(%u), RTR ID %pI4", |
137147c6 | 369 | bgp->name_pretty, |
23d0a753 | 370 | bgp->vrf_id, addr); |
3c2a1ad1 DS |
371 | /* |
372 | * if old router-id was 0x0, set flag | |
373 | * to use this new value | |
374 | */ | |
375 | bgp_router_id_set(bgp, addr, | |
376 | (bgp->router_id.s_addr | |
377 | == INADDR_ANY) | |
378 | ? true | |
379 | : false); | |
36dc7588 | 380 | } |
381 | } | |
d62a17ae | 382 | } |
383 | } else { | |
384 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
385 | if (bgp) { | |
36dc7588 | 386 | if (addr) |
387 | bgp->router_id_zebra = *addr; | |
388 | else | |
389 | addr = &bgp->router_id_zebra; | |
390 | ||
391 | if (!bgp->router_id_static.s_addr) { | |
392 | /* Router ID is updated if there are no active | |
393 | * peer sessions | |
394 | */ | |
395 | if (bgp->established_peers == 0) { | |
396 | if (BGP_DEBUG(zebra, ZEBRA)) | |
137147c6 | 397 | zlog_debug( |
23d0a753 | 398 | "RID change : vrf %s(%u), RTR ID %pI4", |
137147c6 | 399 | bgp->name_pretty, |
23d0a753 | 400 | bgp->vrf_id, addr); |
3c2a1ad1 DS |
401 | /* |
402 | * if old router-id was 0x0, set flag | |
403 | * to use this new value | |
404 | */ | |
405 | bgp_router_id_set(bgp, addr, | |
406 | (bgp->router_id.s_addr | |
407 | == INADDR_ANY) | |
408 | ? true | |
409 | : false); | |
36dc7588 | 410 | } |
411 | } | |
0e6cb743 | 412 | |
d62a17ae | 413 | } |
414 | } | |
0e6cb743 DL |
415 | } |
416 | ||
3dc339cd | 417 | void bgp_router_id_static_set(struct bgp *bgp, struct in_addr id) |
0e6cb743 | 418 | { |
d62a17ae | 419 | bgp->router_id_static = id; |
975a328e DA |
420 | bgp_router_id_set(bgp, |
421 | id.s_addr != INADDR_ANY ? &id : &bgp->router_id_zebra, | |
2951a7a4 | 422 | true /* is config */); |
0e6cb743 DL |
423 | } |
424 | ||
9acb67cb DS |
425 | void bm_wait_for_fib_set(bool set) |
426 | { | |
427 | bool send_msg = false; | |
428 | ||
429 | if (bm->wait_for_fib == set) | |
430 | return; | |
431 | ||
432 | bm->wait_for_fib = set; | |
433 | if (set) { | |
434 | if (bgp_suppress_fib_count == 0) | |
435 | send_msg = true; | |
436 | bgp_suppress_fib_count++; | |
437 | } else { | |
438 | bgp_suppress_fib_count--; | |
439 | if (bgp_suppress_fib_count == 0) | |
440 | send_msg = true; | |
441 | } | |
442 | ||
443 | if (send_msg && zclient) | |
444 | zebra_route_notify_send(ZEBRA_ROUTE_NOTIFY_REQUEST, | |
445 | zclient, set); | |
446 | } | |
447 | ||
c208c586 S |
448 | /* Set the suppress fib pending for the bgp configuration */ |
449 | void bgp_suppress_fib_pending_set(struct bgp *bgp, bool set) | |
450 | { | |
451 | bool send_msg = false; | |
452 | ||
453 | if (bgp->inst_type == BGP_INSTANCE_TYPE_VIEW) | |
454 | return; | |
455 | ||
456 | if (set) { | |
457 | SET_FLAG(bgp->flags, BGP_FLAG_SUPPRESS_FIB_PENDING); | |
458 | /* Send msg to zebra for the first instance of bgp enabled | |
459 | * with suppress fib | |
460 | */ | |
461 | if (bgp_suppress_fib_count == 0) | |
462 | send_msg = true; | |
463 | bgp_suppress_fib_count++; | |
464 | } else { | |
465 | UNSET_FLAG(bgp->flags, BGP_FLAG_SUPPRESS_FIB_PENDING); | |
466 | bgp_suppress_fib_count--; | |
467 | ||
468 | /* Send msg to zebra if there are no instances enabled | |
469 | * with suppress fib | |
470 | */ | |
471 | if (bgp_suppress_fib_count == 0) | |
472 | send_msg = true; | |
473 | } | |
474 | /* Send route notify request to RIB */ | |
475 | if (send_msg) { | |
476 | if (BGP_DEBUG(zebra, ZEBRA)) | |
477 | zlog_debug("Sending ZEBRA_ROUTE_NOTIFY_REQUEST"); | |
478 | ||
479 | if (zclient) | |
480 | zebra_route_notify_send(ZEBRA_ROUTE_NOTIFY_REQUEST, | |
481 | zclient, set); | |
482 | } | |
483 | } | |
484 | ||
718e3744 | 485 | /* BGP's cluster-id control. */ |
0b1fb52c | 486 | void bgp_cluster_id_set(struct bgp *bgp, struct in_addr *cluster_id) |
718e3744 | 487 | { |
d62a17ae | 488 | struct peer *peer; |
489 | struct listnode *node, *nnode; | |
718e3744 | 490 | |
1ca2fd11 IR |
491 | if (bgp_config_check(bgp, BGP_CONFIG_CLUSTER_ID) |
492 | && IPV4_ADDR_SAME(&bgp->cluster_id, cluster_id)) | |
0b1fb52c | 493 | return; |
1ca2fd11 | 494 | |
d62a17ae | 495 | IPV4_ADDR_COPY(&bgp->cluster_id, cluster_id); |
496 | bgp_config_set(bgp, BGP_CONFIG_CLUSTER_ID); | |
718e3744 | 497 | |
d62a17ae | 498 | /* Clear all IBGP peer. */ |
499 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
500 | if (peer->sort != BGP_PEER_IBGP) | |
501 | continue; | |
718e3744 | 502 | |
d62a17ae | 503 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
504 | peer->last_reset = PEER_DOWN_CLID_CHANGE; | |
505 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
506 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
507 | } | |
508 | } | |
718e3744 | 509 | } |
510 | ||
0b1fb52c | 511 | void bgp_cluster_id_unset(struct bgp *bgp) |
718e3744 | 512 | { |
d62a17ae | 513 | struct peer *peer; |
514 | struct listnode *node, *nnode; | |
718e3744 | 515 | |
d62a17ae | 516 | if (!bgp_config_check(bgp, BGP_CONFIG_CLUSTER_ID)) |
0b1fb52c | 517 | return; |
718e3744 | 518 | |
d62a17ae | 519 | bgp->cluster_id.s_addr = 0; |
520 | bgp_config_unset(bgp, BGP_CONFIG_CLUSTER_ID); | |
718e3744 | 521 | |
d62a17ae | 522 | /* Clear all IBGP peer. */ |
523 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
524 | if (peer->sort != BGP_PEER_IBGP) | |
525 | continue; | |
718e3744 | 526 | |
d62a17ae | 527 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
528 | peer->last_reset = PEER_DOWN_CLID_CHANGE; | |
529 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
530 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
531 | } | |
532 | } | |
718e3744 | 533 | } |
6b0655a2 | 534 | |
718e3744 | 535 | /* BGP timer configuration. */ |
3dc339cd | 536 | void bgp_timers_set(struct bgp *bgp, uint32_t keepalive, uint32_t holdtime, |
6c537a18 | 537 | uint32_t connect_retry, uint32_t delayopen) |
718e3744 | 538 | { |
d62a17ae | 539 | bgp->default_keepalive = |
540 | (keepalive < holdtime / 3 ? keepalive : holdtime / 3); | |
541 | bgp->default_holdtime = holdtime; | |
5d5393b9 | 542 | bgp->default_connect_retry = connect_retry; |
6c537a18 | 543 | bgp->default_delayopen = delayopen; |
718e3744 | 544 | } |
545 | ||
5d5393b9 | 546 | /* mostly for completeness - CLI uses its own defaults */ |
3dc339cd | 547 | void bgp_timers_unset(struct bgp *bgp) |
718e3744 | 548 | { |
d62a17ae | 549 | bgp->default_keepalive = BGP_DEFAULT_KEEPALIVE; |
550 | bgp->default_holdtime = BGP_DEFAULT_HOLDTIME; | |
5d5393b9 | 551 | bgp->default_connect_retry = BGP_DEFAULT_CONNECT_RETRY; |
6c537a18 | 552 | bgp->default_delayopen = BGP_DEFAULT_DELAYOPEN; |
718e3744 | 553 | } |
6b0655a2 | 554 | |
d1adb448 PG |
555 | void bgp_tcp_keepalive_set(struct bgp *bgp, uint16_t keepalive_idle, |
556 | uint16_t keepalive_intvl, uint16_t keepalive_probes) | |
557 | { | |
558 | bgp->tcp_keepalive_idle = keepalive_idle; | |
559 | bgp->tcp_keepalive_intvl = keepalive_intvl; | |
560 | bgp->tcp_keepalive_probes = keepalive_probes; | |
561 | } | |
562 | ||
563 | void bgp_tcp_keepalive_unset(struct bgp *bgp) | |
564 | { | |
565 | bgp->tcp_keepalive_idle = 0; | |
566 | bgp->tcp_keepalive_intvl = 0; | |
567 | bgp->tcp_keepalive_probes = 0; | |
568 | } | |
569 | ||
718e3744 | 570 | /* BGP confederation configuration. */ |
ff8a8a7a | 571 | void bgp_confederation_id_set(struct bgp *bgp, as_t as) |
d62a17ae | 572 | { |
573 | struct peer *peer; | |
574 | struct listnode *node, *nnode; | |
575 | int already_confed; | |
576 | ||
577 | if (as == 0) | |
ff8a8a7a | 578 | return; |
d62a17ae | 579 | |
580 | /* Remember - were we doing confederation before? */ | |
581 | already_confed = bgp_config_check(bgp, BGP_CONFIG_CONFEDERATION); | |
582 | bgp->confed_id = as; | |
583 | bgp_config_set(bgp, BGP_CONFIG_CONFEDERATION); | |
584 | ||
585 | /* If we were doing confederation already, this is just an external | |
586 | AS change. Just Reset EBGP sessions, not CONFED sessions. If we | |
587 | were not doing confederation before, reset all EBGP sessions. */ | |
588 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
3061acc2 | 589 | enum bgp_peer_sort ptype = peer_sort(peer); |
469cbb0f | 590 | |
d62a17ae | 591 | /* We're looking for peers who's AS is not local or part of our |
592 | confederation. */ | |
593 | if (already_confed) { | |
469cbb0f | 594 | if (ptype == BGP_PEER_EBGP) { |
d62a17ae | 595 | peer->local_as = as; |
596 | if (BGP_IS_VALID_STATE_FOR_NOTIF( | |
597 | peer->status)) { | |
598 | peer->last_reset = | |
599 | PEER_DOWN_CONFED_ID_CHANGE; | |
600 | bgp_notify_send( | |
601 | peer, BGP_NOTIFY_CEASE, | |
602 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
603 | } else | |
604 | bgp_session_reset_safe(peer, &nnode); | |
605 | } | |
606 | } else { | |
607 | /* Not doign confederation before, so reset every | |
608 | non-local | |
609 | session */ | |
469cbb0f | 610 | if (ptype != BGP_PEER_IBGP) { |
d62a17ae | 611 | /* Reset the local_as to be our EBGP one */ |
469cbb0f | 612 | if (ptype == BGP_PEER_EBGP) |
d62a17ae | 613 | peer->local_as = as; |
614 | if (BGP_IS_VALID_STATE_FOR_NOTIF( | |
615 | peer->status)) { | |
616 | peer->last_reset = | |
617 | PEER_DOWN_CONFED_ID_CHANGE; | |
618 | bgp_notify_send( | |
619 | peer, BGP_NOTIFY_CEASE, | |
620 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
621 | } else | |
622 | bgp_session_reset_safe(peer, &nnode); | |
623 | } | |
624 | } | |
718e3744 | 625 | } |
ff8a8a7a | 626 | return; |
718e3744 | 627 | } |
628 | ||
0b1fb52c | 629 | void bgp_confederation_id_unset(struct bgp *bgp) |
718e3744 | 630 | { |
d62a17ae | 631 | struct peer *peer; |
632 | struct listnode *node, *nnode; | |
633 | ||
634 | bgp->confed_id = 0; | |
635 | bgp_config_unset(bgp, BGP_CONFIG_CONFEDERATION); | |
718e3744 | 636 | |
d62a17ae | 637 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { |
638 | /* We're looking for peers who's AS is not local */ | |
639 | if (peer_sort(peer) != BGP_PEER_IBGP) { | |
640 | peer->local_as = bgp->as; | |
641 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
642 | peer->last_reset = PEER_DOWN_CONFED_ID_CHANGE; | |
643 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
644 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
645 | } | |
718e3744 | 646 | |
d62a17ae | 647 | else |
648 | bgp_session_reset_safe(peer, &nnode); | |
649 | } | |
650 | } | |
718e3744 | 651 | } |
652 | ||
d62a17ae | 653 | /* Is an AS part of the confed or not? */ |
3dc339cd | 654 | bool bgp_confederation_peers_check(struct bgp *bgp, as_t as) |
718e3744 | 655 | { |
d62a17ae | 656 | int i; |
718e3744 | 657 | |
d62a17ae | 658 | if (!bgp) |
3dc339cd | 659 | return false; |
718e3744 | 660 | |
d62a17ae | 661 | for (i = 0; i < bgp->confed_peers_cnt; i++) |
662 | if (bgp->confed_peers[i] == as) | |
3dc339cd | 663 | return true; |
718e3744 | 664 | |
3dc339cd | 665 | return false; |
d62a17ae | 666 | } |
718e3744 | 667 | |
d62a17ae | 668 | /* Add an AS to the confederation set. */ |
0b1fb52c | 669 | void bgp_confederation_peers_add(struct bgp *bgp, as_t as) |
d62a17ae | 670 | { |
671 | struct peer *peer; | |
672 | struct listnode *node, *nnode; | |
673 | ||
d62a17ae | 674 | if (bgp->as == as) |
0b1fb52c | 675 | return; |
d62a17ae | 676 | |
677 | if (bgp_confederation_peers_check(bgp, as)) | |
0b1fb52c | 678 | return; |
d62a17ae | 679 | |
0b04fa0e DS |
680 | bgp->confed_peers = |
681 | XREALLOC(MTYPE_BGP_CONFED_LIST, bgp->confed_peers, | |
682 | (bgp->confed_peers_cnt + 1) * sizeof(as_t)); | |
d62a17ae | 683 | |
684 | bgp->confed_peers[bgp->confed_peers_cnt] = as; | |
685 | bgp->confed_peers_cnt++; | |
686 | ||
687 | if (bgp_config_check(bgp, BGP_CONFIG_CONFEDERATION)) { | |
688 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
689 | if (peer->as == as) { | |
b50a0610 | 690 | (void)peer_sort(peer); |
d62a17ae | 691 | peer->local_as = bgp->as; |
692 | if (BGP_IS_VALID_STATE_FOR_NOTIF( | |
693 | peer->status)) { | |
694 | peer->last_reset = | |
695 | PEER_DOWN_CONFED_PEER_CHANGE; | |
696 | bgp_notify_send( | |
697 | peer, BGP_NOTIFY_CEASE, | |
698 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
699 | } else | |
700 | bgp_session_reset_safe(peer, &nnode); | |
701 | } | |
702 | } | |
703 | } | |
718e3744 | 704 | } |
705 | ||
706 | /* Delete an AS from the confederation set. */ | |
0b1fb52c | 707 | void bgp_confederation_peers_remove(struct bgp *bgp, as_t as) |
d62a17ae | 708 | { |
709 | int i; | |
710 | int j; | |
711 | struct peer *peer; | |
712 | struct listnode *node, *nnode; | |
713 | ||
714 | if (!bgp) | |
0b1fb52c | 715 | return; |
d62a17ae | 716 | |
717 | if (!bgp_confederation_peers_check(bgp, as)) | |
0b1fb52c | 718 | return; |
d62a17ae | 719 | |
720 | for (i = 0; i < bgp->confed_peers_cnt; i++) | |
721 | if (bgp->confed_peers[i] == as) | |
722 | for (j = i + 1; j < bgp->confed_peers_cnt; j++) | |
723 | bgp->confed_peers[j - 1] = bgp->confed_peers[j]; | |
724 | ||
725 | bgp->confed_peers_cnt--; | |
726 | ||
727 | if (bgp->confed_peers_cnt == 0) { | |
728 | if (bgp->confed_peers) | |
729 | XFREE(MTYPE_BGP_CONFED_LIST, bgp->confed_peers); | |
730 | bgp->confed_peers = NULL; | |
731 | } else | |
732 | bgp->confed_peers = | |
733 | XREALLOC(MTYPE_BGP_CONFED_LIST, bgp->confed_peers, | |
734 | bgp->confed_peers_cnt * sizeof(as_t)); | |
735 | ||
736 | /* Now reset any peer who's remote AS has just been removed from the | |
737 | CONFED */ | |
738 | if (bgp_config_check(bgp, BGP_CONFIG_CONFEDERATION)) { | |
739 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
740 | if (peer->as == as) { | |
b50a0610 | 741 | (void)peer_sort(peer); |
d62a17ae | 742 | peer->local_as = bgp->confed_id; |
743 | if (BGP_IS_VALID_STATE_FOR_NOTIF( | |
744 | peer->status)) { | |
745 | peer->last_reset = | |
746 | PEER_DOWN_CONFED_PEER_CHANGE; | |
747 | bgp_notify_send( | |
748 | peer, BGP_NOTIFY_CEASE, | |
749 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
750 | } else | |
751 | bgp_session_reset_safe(peer, &nnode); | |
752 | } | |
753 | } | |
718e3744 | 754 | } |
718e3744 | 755 | } |
6b0655a2 | 756 | |
718e3744 | 757 | /* Local preference configuration. */ |
0b1fb52c | 758 | void bgp_default_local_preference_set(struct bgp *bgp, uint32_t local_pref) |
718e3744 | 759 | { |
d62a17ae | 760 | if (!bgp) |
0b1fb52c | 761 | return; |
718e3744 | 762 | |
d62a17ae | 763 | bgp->default_local_pref = local_pref; |
718e3744 | 764 | } |
765 | ||
0b1fb52c | 766 | void bgp_default_local_preference_unset(struct bgp *bgp) |
718e3744 | 767 | { |
d62a17ae | 768 | if (!bgp) |
0b1fb52c | 769 | return; |
718e3744 | 770 | |
d62a17ae | 771 | bgp->default_local_pref = BGP_DEFAULT_LOCAL_PREF; |
718e3744 | 772 | } |
6b0655a2 | 773 | |
3f9c7369 | 774 | /* Local preference configuration. */ |
0b1fb52c DA |
775 | void bgp_default_subgroup_pkt_queue_max_set(struct bgp *bgp, |
776 | uint32_t queue_size) | |
3f9c7369 | 777 | { |
d62a17ae | 778 | if (!bgp) |
0b1fb52c | 779 | return; |
3f9c7369 | 780 | |
d62a17ae | 781 | bgp->default_subgroup_pkt_queue_max = queue_size; |
3f9c7369 DS |
782 | } |
783 | ||
0b1fb52c | 784 | void bgp_default_subgroup_pkt_queue_max_unset(struct bgp *bgp) |
3f9c7369 | 785 | { |
d62a17ae | 786 | if (!bgp) |
0b1fb52c | 787 | return; |
d62a17ae | 788 | bgp->default_subgroup_pkt_queue_max = |
789 | BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX; | |
3f9c7369 DS |
790 | } |
791 | ||
f14e6fdb | 792 | /* Listen limit configuration. */ |
0b1fb52c | 793 | void bgp_listen_limit_set(struct bgp *bgp, int listen_limit) |
f14e6fdb | 794 | { |
d62a17ae | 795 | if (!bgp) |
0b1fb52c | 796 | return; |
f14e6fdb | 797 | |
d62a17ae | 798 | bgp->dynamic_neighbors_limit = listen_limit; |
f14e6fdb DS |
799 | } |
800 | ||
0b1fb52c | 801 | void bgp_listen_limit_unset(struct bgp *bgp) |
f14e6fdb | 802 | { |
d62a17ae | 803 | if (!bgp) |
0b1fb52c | 804 | return; |
f14e6fdb | 805 | |
d62a17ae | 806 | bgp->dynamic_neighbors_limit = BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT; |
f14e6fdb DS |
807 | } |
808 | ||
5c525538 RW |
809 | int bgp_map_afi_safi_iana2int(iana_afi_t pkt_afi, iana_safi_t pkt_safi, |
810 | afi_t *afi, safi_t *safi) | |
9cabb64b | 811 | { |
d62a17ae | 812 | /* Map from IANA values to internal values, return error if |
813 | * values are unrecognized. | |
814 | */ | |
815 | *afi = afi_iana2int(pkt_afi); | |
816 | *safi = safi_iana2int(pkt_safi); | |
817 | if (*afi == AFI_MAX || *safi == SAFI_MAX) | |
818 | return -1; | |
9cabb64b | 819 | |
d62a17ae | 820 | return 0; |
9cabb64b | 821 | } |
822 | ||
d62a17ae | 823 | int bgp_map_afi_safi_int2iana(afi_t afi, safi_t safi, iana_afi_t *pkt_afi, |
5c525538 | 824 | iana_safi_t *pkt_safi) |
9cabb64b | 825 | { |
d62a17ae | 826 | /* Map from internal values to IANA values, return error if |
827 | * internal values are bad (unexpected). | |
828 | */ | |
829 | if (afi == AFI_MAX || safi == SAFI_MAX) | |
830 | return -1; | |
831 | *pkt_afi = afi_int2iana(afi); | |
832 | *pkt_safi = safi_int2iana(safi); | |
833 | return 0; | |
9cabb64b | 834 | } |
835 | ||
d62a17ae | 836 | struct peer_af *peer_af_create(struct peer *peer, afi_t afi, safi_t safi) |
3f9c7369 | 837 | { |
d62a17ae | 838 | struct peer_af *af; |
839 | int afid; | |
210ec2a0 | 840 | struct bgp *bgp; |
3f9c7369 | 841 | |
d62a17ae | 842 | if (!peer) |
843 | return NULL; | |
3f9c7369 | 844 | |
d62a17ae | 845 | afid = afindex(afi, safi); |
846 | if (afid >= BGP_AF_MAX) | |
847 | return NULL; | |
3f9c7369 | 848 | |
210ec2a0 | 849 | bgp = peer->bgp; |
d62a17ae | 850 | assert(peer->peer_af_array[afid] == NULL); |
3f9c7369 | 851 | |
d62a17ae | 852 | /* Allocate new peer af */ |
853 | af = XCALLOC(MTYPE_BGP_PEER_AF, sizeof(struct peer_af)); | |
c8560b44 | 854 | |
d62a17ae | 855 | peer->peer_af_array[afid] = af; |
856 | af->afi = afi; | |
857 | af->safi = safi; | |
858 | af->afid = afid; | |
859 | af->peer = peer; | |
210ec2a0 | 860 | bgp->af_peer_count[afi][safi]++; |
3f9c7369 | 861 | |
d62a17ae | 862 | return af; |
3f9c7369 DS |
863 | } |
864 | ||
d62a17ae | 865 | struct peer_af *peer_af_find(struct peer *peer, afi_t afi, safi_t safi) |
3f9c7369 | 866 | { |
d62a17ae | 867 | int afid; |
3f9c7369 | 868 | |
d62a17ae | 869 | if (!peer) |
870 | return NULL; | |
3f9c7369 | 871 | |
d62a17ae | 872 | afid = afindex(afi, safi); |
873 | if (afid >= BGP_AF_MAX) | |
874 | return NULL; | |
3f9c7369 | 875 | |
d62a17ae | 876 | return peer->peer_af_array[afid]; |
3f9c7369 DS |
877 | } |
878 | ||
d62a17ae | 879 | int peer_af_delete(struct peer *peer, afi_t afi, safi_t safi) |
3f9c7369 | 880 | { |
d62a17ae | 881 | struct peer_af *af; |
882 | int afid; | |
210ec2a0 | 883 | struct bgp *bgp; |
3f9c7369 | 884 | |
d62a17ae | 885 | if (!peer) |
886 | return -1; | |
3f9c7369 | 887 | |
d62a17ae | 888 | afid = afindex(afi, safi); |
889 | if (afid >= BGP_AF_MAX) | |
890 | return -1; | |
3f9c7369 | 891 | |
d62a17ae | 892 | af = peer->peer_af_array[afid]; |
893 | if (!af) | |
894 | return -1; | |
3f9c7369 | 895 | |
210ec2a0 | 896 | bgp = peer->bgp; |
46aeabed LS |
897 | bgp_soft_reconfig_table_task_cancel(bgp, bgp->rib[afi][safi], peer); |
898 | ||
d62a17ae | 899 | bgp_stop_announce_route_timer(af); |
3f9c7369 | 900 | |
d62a17ae | 901 | if (PAF_SUBGRP(af)) { |
902 | if (BGP_DEBUG(update_groups, UPDATE_GROUPS)) | |
903 | zlog_debug("u%" PRIu64 ":s%" PRIu64 " remove peer %s", | |
904 | af->subgroup->update_group->id, | |
905 | af->subgroup->id, peer->host); | |
906 | } | |
3f9c7369 | 907 | |
210ec2a0 | 908 | |
d62a17ae | 909 | update_subgroup_remove_peer(af->subgroup, af); |
3f9c7369 | 910 | |
210ec2a0 AS |
911 | if (bgp->af_peer_count[afi][safi]) |
912 | bgp->af_peer_count[afi][safi]--; | |
913 | ||
d62a17ae | 914 | peer->peer_af_array[afid] = NULL; |
915 | XFREE(MTYPE_BGP_PEER_AF, af); | |
916 | return 0; | |
3f9c7369 DS |
917 | } |
918 | ||
eb821189 | 919 | /* Peer comparison function for sorting. */ |
d62a17ae | 920 | int peer_cmp(struct peer *p1, struct peer *p2) |
718e3744 | 921 | { |
d62a17ae | 922 | if (p1->group && !p2->group) |
923 | return -1; | |
0aaa34db | 924 | |
d62a17ae | 925 | if (!p1->group && p2->group) |
926 | return 1; | |
0aaa34db | 927 | |
d62a17ae | 928 | if (p1->group == p2->group) { |
929 | if (p1->conf_if && !p2->conf_if) | |
930 | return -1; | |
0aaa34db | 931 | |
d62a17ae | 932 | if (!p1->conf_if && p2->conf_if) |
933 | return 1; | |
0aaa34db | 934 | |
d62a17ae | 935 | if (p1->conf_if && p2->conf_if) |
936 | return if_cmp_name_func(p1->conf_if, p2->conf_if); | |
937 | } else | |
938 | return strcmp(p1->group->name, p2->group->name); | |
0aaa34db | 939 | |
d62a17ae | 940 | return sockunion_cmp(&p1->su, &p2->su); |
718e3744 | 941 | } |
942 | ||
d8b87afe | 943 | static unsigned int peer_hash_key_make(const void *p) |
dd793e4a | 944 | { |
d8b87afe | 945 | const struct peer *peer = p; |
d62a17ae | 946 | return sockunion_hash(&peer->su); |
dd793e4a DW |
947 | } |
948 | ||
74df8d6d | 949 | static bool peer_hash_same(const void *p1, const void *p2) |
dd793e4a | 950 | { |
d62a17ae | 951 | const struct peer *peer1 = p1; |
952 | const struct peer *peer2 = p2; | |
953 | return (sockunion_same(&peer1->su, &peer2->su) | |
954 | && CHECK_FLAG(peer1->flags, PEER_FLAG_CONFIG_NODE) | |
955 | == CHECK_FLAG(peer2->flags, PEER_FLAG_CONFIG_NODE)); | |
dd793e4a DW |
956 | } |
957 | ||
83194f39 | 958 | void peer_flag_inherit(struct peer *peer, uint64_t flag) |
9fb964de PM |
959 | { |
960 | bool group_val; | |
961 | ||
962 | /* Skip if peer is not a peer-group member. */ | |
963 | if (!peer_group_active(peer)) | |
964 | return; | |
965 | ||
966 | /* Unset override flag to signal inheritance from peer-group. */ | |
967 | UNSET_FLAG(peer->flags_override, flag); | |
968 | ||
969 | /* | |
970 | * Inherit flag state from peer-group. If the flag of the peer-group is | |
971 | * not being inverted, the peer must inherit the inverse of the current | |
972 | * peer-group flag state. | |
973 | */ | |
974 | group_val = CHECK_FLAG(peer->group->conf->flags, flag); | |
975 | if (!CHECK_FLAG(peer->group->conf->flags_invert, flag) | |
976 | && CHECK_FLAG(peer->flags_invert, flag)) | |
977 | COND_FLAG(peer->flags, flag, !group_val); | |
978 | else | |
979 | COND_FLAG(peer->flags, flag, group_val); | |
980 | } | |
981 | ||
d7c0a89a | 982 | int peer_af_flag_check(struct peer *peer, afi_t afi, safi_t safi, uint32_t flag) |
718e3744 | 983 | { |
d62a17ae | 984 | return CHECK_FLAG(peer->af_flags[afi][safi], flag); |
718e3744 | 985 | } |
986 | ||
598ce6bd | 987 | void peer_af_flag_inherit(struct peer *peer, afi_t afi, safi_t safi, |
da5e1a58 | 988 | uint64_t flag) |
88b8ed8d | 989 | { |
527de3dc PM |
990 | bool group_val; |
991 | ||
598ce6bd PM |
992 | /* Skip if peer is not a peer-group member. */ |
993 | if (!peer_group_active(peer)) | |
994 | return; | |
88b8ed8d | 995 | |
598ce6bd PM |
996 | /* Unset override flag to signal inheritance from peer-group. */ |
997 | UNSET_FLAG(peer->af_flags_override[afi][safi], flag); | |
88b8ed8d | 998 | |
527de3dc PM |
999 | /* |
1000 | * Inherit flag state from peer-group. If the flag of the peer-group is | |
1001 | * not being inverted, the peer must inherit the inverse of the current | |
1002 | * peer-group flag state. | |
1003 | */ | |
1004 | group_val = CHECK_FLAG(peer->group->conf->af_flags[afi][safi], flag); | |
1005 | if (!CHECK_FLAG(peer->group->conf->af_flags_invert[afi][safi], flag) | |
1006 | && CHECK_FLAG(peer->af_flags_invert[afi][safi], flag)) | |
1007 | COND_FLAG(peer->af_flags[afi][safi], flag, !group_val); | |
598ce6bd | 1008 | else |
527de3dc | 1009 | COND_FLAG(peer->af_flags[afi][safi], flag, group_val); |
598ce6bd | 1010 | } |
88b8ed8d | 1011 | |
6d85b15b | 1012 | /* Check peer's AS number and determines if this peer is IBGP or EBGP */ |
3061acc2 | 1013 | static inline enum bgp_peer_sort peer_calc_sort(struct peer *peer) |
718e3744 | 1014 | { |
d62a17ae | 1015 | struct bgp *bgp; |
d6b0327c | 1016 | as_t local_as; |
718e3744 | 1017 | |
d62a17ae | 1018 | bgp = peer->bgp; |
718e3744 | 1019 | |
d6b0327c DA |
1020 | if (peer->change_local_as) |
1021 | local_as = peer->change_local_as; | |
1022 | else | |
1023 | local_as = peer->local_as; | |
1024 | ||
d62a17ae | 1025 | /* Peer-group */ |
1026 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
1027 | if (peer->as_type == AS_INTERNAL) | |
1028 | return BGP_PEER_IBGP; | |
66b199b2 | 1029 | |
d62a17ae | 1030 | else if (peer->as_type == AS_EXTERNAL) |
1031 | return BGP_PEER_EBGP; | |
66b199b2 | 1032 | |
b575a12c A |
1033 | else if (peer->as_type == AS_SPECIFIED && peer->as) { |
1034 | assert(bgp); | |
d6b0327c DA |
1035 | return (local_as == peer->as ? BGP_PEER_IBGP |
1036 | : BGP_PEER_EBGP); | |
b575a12c | 1037 | } |
66b199b2 | 1038 | |
d62a17ae | 1039 | else { |
1040 | struct peer *peer1; | |
d4f8b537 | 1041 | |
1042 | assert(peer->group); | |
d62a17ae | 1043 | peer1 = listnode_head(peer->group->peer); |
1044 | ||
1045 | if (peer1) | |
1046 | return peer1->sort; | |
1047 | } | |
1048 | return BGP_PEER_INTERNAL; | |
1049 | } | |
1050 | ||
1051 | /* Normal peer */ | |
1052 | if (bgp && CHECK_FLAG(bgp->config, BGP_CONFIG_CONFEDERATION)) { | |
d6b0327c | 1053 | if (local_as == 0) |
d62a17ae | 1054 | return BGP_PEER_INTERNAL; |
1055 | ||
d6b0327c | 1056 | if (local_as == peer->as) { |
d62a17ae | 1057 | if (bgp->as == bgp->confed_id) { |
d6b0327c | 1058 | if (local_as == bgp->as) |
d62a17ae | 1059 | return BGP_PEER_IBGP; |
1060 | else | |
1061 | return BGP_PEER_EBGP; | |
1062 | } else { | |
d6b0327c | 1063 | if (local_as == bgp->confed_id) |
d62a17ae | 1064 | return BGP_PEER_EBGP; |
1065 | else | |
1066 | return BGP_PEER_IBGP; | |
1067 | } | |
1068 | } | |
1069 | ||
1070 | if (bgp_confederation_peers_check(bgp, peer->as)) | |
1071 | return BGP_PEER_CONFED; | |
1072 | ||
1073 | return BGP_PEER_EBGP; | |
1074 | } else { | |
faa16034 DS |
1075 | if (peer->as_type == AS_UNSPECIFIED) { |
1076 | /* check if in peer-group with AS information */ | |
1077 | if (peer->group | |
1078 | && (peer->group->conf->as_type != AS_UNSPECIFIED)) { | |
1079 | if (peer->group->conf->as_type | |
1080 | == AS_SPECIFIED) { | |
d6b0327c | 1081 | if (local_as == peer->group->conf->as) |
faa16034 DS |
1082 | return BGP_PEER_IBGP; |
1083 | else | |
1084 | return BGP_PEER_EBGP; | |
1085 | } else if (peer->group->conf->as_type | |
1086 | == AS_INTERNAL) | |
1087 | return BGP_PEER_IBGP; | |
1088 | else | |
1089 | return BGP_PEER_EBGP; | |
1090 | } | |
1091 | /* no AS information anywhere, let caller know */ | |
1092 | return BGP_PEER_UNSPECIFIED; | |
1093 | } else if (peer->as_type != AS_SPECIFIED) | |
d62a17ae | 1094 | return (peer->as_type == AS_INTERNAL ? BGP_PEER_IBGP |
1095 | : BGP_PEER_EBGP); | |
1096 | ||
d6b0327c DA |
1097 | return (local_as == 0 ? BGP_PEER_INTERNAL |
1098 | : local_as == peer->as ? BGP_PEER_IBGP | |
d62a17ae | 1099 | : BGP_PEER_EBGP); |
1100 | } | |
718e3744 | 1101 | } |
1102 | ||
6d85b15b | 1103 | /* Calculate and cache the peer "sort" */ |
3061acc2 | 1104 | enum bgp_peer_sort peer_sort(struct peer *peer) |
d62a17ae | 1105 | { |
1106 | peer->sort = peer_calc_sort(peer); | |
1107 | return peer->sort; | |
1108 | } | |
1109 | ||
3061acc2 | 1110 | enum bgp_peer_sort peer_sort_lookup(struct peer *peer) |
bf0d28dc DS |
1111 | { |
1112 | return peer->sort; | |
1113 | } | |
1114 | ||
d62a17ae | 1115 | static void peer_free(struct peer *peer) |
1116 | { | |
dcc68b5e MS |
1117 | afi_t afi; |
1118 | safi_t safi; | |
1119 | ||
d62a17ae | 1120 | assert(peer->status == Deleted); |
1121 | ||
1122 | QOBJ_UNREG(peer); | |
1123 | ||
1124 | /* this /ought/ to have been done already through bgp_stop earlier, | |
1125 | * but just to be sure.. | |
1126 | */ | |
1127 | bgp_timer_set(peer); | |
424ab01d QY |
1128 | bgp_reads_off(peer); |
1129 | bgp_writes_off(peer); | |
7651f277 DS |
1130 | FOREACH_AFI_SAFI (afi, safi) |
1131 | THREAD_OFF(peer->t_revalidate_all[afi][safi]); | |
424ab01d QY |
1132 | assert(!peer->t_write); |
1133 | assert(!peer->t_read); | |
d62a17ae | 1134 | BGP_EVENT_FLUSH(peer); |
1135 | ||
424ab01d QY |
1136 | pthread_mutex_destroy(&peer->io_mtx); |
1137 | ||
d62a17ae | 1138 | /* Free connected nexthop, if present */ |
1139 | if (CHECK_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE) | |
1140 | && !peer_dynamic_neighbor(peer)) | |
1141 | bgp_delete_connected_nexthop(family2afi(peer->su.sa.sa_family), | |
1142 | peer); | |
1143 | ||
3d1c148b DS |
1144 | FOREACH_AFI_SAFI (afi, safi) { |
1145 | if (peer->filter[afi][safi].advmap.aname) | |
1146 | XFREE(MTYPE_BGP_FILTER_NAME, | |
1147 | peer->filter[afi][safi].advmap.aname); | |
1148 | if (peer->filter[afi][safi].advmap.cname) | |
1149 | XFREE(MTYPE_BGP_FILTER_NAME, | |
1150 | peer->filter[afi][safi].advmap.cname); | |
1151 | } | |
1152 | ||
d62a17ae | 1153 | XFREE(MTYPE_PEER_TX_SHUTDOWN_MSG, peer->tx_shutdown_message); |
1154 | ||
e1b36e13 QY |
1155 | XFREE(MTYPE_PEER_DESC, peer->desc); |
1156 | XFREE(MTYPE_BGP_PEER_HOST, peer->host); | |
1157 | XFREE(MTYPE_BGP_PEER_HOST, peer->domainname); | |
1158 | XFREE(MTYPE_BGP_PEER_IFNAME, peer->ifname); | |
d62a17ae | 1159 | |
1160 | /* Update source configuration. */ | |
1161 | if (peer->update_source) { | |
1162 | sockunion_free(peer->update_source); | |
1163 | peer->update_source = NULL; | |
1164 | } | |
1165 | ||
e1b36e13 | 1166 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); |
d62a17ae | 1167 | |
eea685b6 | 1168 | XFREE(MTYPE_BGP_NOTIFICATION, peer->notify.data); |
d62a17ae | 1169 | memset(&peer->notify, 0, sizeof(struct bgp_notify)); |
1170 | ||
e208c8f9 DS |
1171 | if (peer->clear_node_queue) |
1172 | work_queue_free_and_null(&peer->clear_node_queue); | |
d62a17ae | 1173 | |
1174 | bgp_sync_delete(peer); | |
1175 | ||
e1b36e13 | 1176 | XFREE(MTYPE_PEER_CONF_IF, peer->conf_if); |
d62a17ae | 1177 | |
21bfce98 RZ |
1178 | /* Remove BFD configuration. */ |
1179 | if (peer->bfd_config) | |
1180 | bgp_peer_remove_bfd_config(peer); | |
d62a17ae | 1181 | |
3d1c148b DS |
1182 | FOREACH_AFI_SAFI (afi, safi) |
1183 | bgp_addpath_set_peer_type(peer, afi, safi, BGP_ADDPATH_NONE); | |
dcc68b5e | 1184 | |
d62a17ae | 1185 | bgp_unlock(peer->bgp); |
1186 | ||
1187 | memset(peer, 0, sizeof(struct peer)); | |
1188 | ||
1189 | XFREE(MTYPE_BGP_PEER, peer); | |
1190 | } | |
1191 | ||
200df115 | 1192 | /* increase reference count on a struct peer */ |
d62a17ae | 1193 | struct peer *peer_lock_with_caller(const char *name, struct peer *peer) |
200df115 | 1194 | { |
d62a17ae | 1195 | assert(peer && (peer->lock >= 0)); |
28066f4b | 1196 | |
d62a17ae | 1197 | peer->lock++; |
1198 | ||
1199 | return peer; | |
200df115 | 1200 | } |
1201 | ||
1202 | /* decrease reference count on a struct peer | |
1203 | * struct peer is freed and NULL returned if last reference | |
1204 | */ | |
d62a17ae | 1205 | struct peer *peer_unlock_with_caller(const char *name, struct peer *peer) |
200df115 | 1206 | { |
d62a17ae | 1207 | assert(peer && (peer->lock > 0)); |
28066f4b | 1208 | |
d62a17ae | 1209 | peer->lock--; |
1210 | ||
1211 | if (peer->lock == 0) { | |
1212 | peer_free(peer); | |
1213 | return NULL; | |
1214 | } | |
1215 | ||
1216 | return peer; | |
200df115 | 1217 | } |
794b37d5 | 1218 | /* BGP GR changes */ |
1219 | ||
1220 | int bgp_global_gr_init(struct bgp *bgp) | |
1221 | { | |
1222 | if (BGP_DEBUG(graceful_restart, GRACEFUL_RESTART)) | |
1223 | zlog_debug("%s called ..", __func__); | |
1224 | ||
2ba1fe69 | 1225 | int local_GLOBAL_GR_FSM[BGP_GLOBAL_GR_MODE][BGP_GLOBAL_GR_EVENT_CMD] = { |
794b37d5 | 1226 | /* GLOBAL_HELPER Mode */ |
1227 | { | |
1228 | /*Event -> */ | |
1229 | /*GLOBAL_GR_cmd*/ /*no_Global_GR_cmd*/ | |
1230 | GLOBAL_GR, GLOBAL_INVALID, | |
1231 | /*GLOBAL_DISABLE_cmd*/ /*no_Global_Disable_cmd*/ | |
1232 | GLOBAL_DISABLE, GLOBAL_INVALID | |
1233 | }, | |
1234 | /* GLOBAL_GR Mode */ | |
1235 | { | |
1236 | /*Event -> */ | |
1237 | /*GLOBAL_GR_cmd*/ /*no_Global_GR_cmd*/ | |
62403772 | 1238 | GLOBAL_GR, GLOBAL_HELPER, |
794b37d5 | 1239 | /*GLOBAL_DISABLE_cmd*/ /*no_Global_Disable_cmd*/ |
1240 | GLOBAL_DISABLE, GLOBAL_INVALID | |
1241 | }, | |
1242 | /* GLOBAL_DISABLE Mode */ | |
1243 | { | |
1244 | /*Event -> */ | |
1245 | /*GLOBAL_GR_cmd */ /*no_Global_GR_cmd*/ | |
1246 | GLOBAL_GR, GLOBAL_INVALID, | |
1247 | /*GLOBAL_DISABLE_cmd*//*no_Global_Disable_cmd*/ | |
1248 | GLOBAL_INVALID, GLOBAL_HELPER | |
1249 | }, | |
1250 | /* GLOBAL_INVALID Mode */ | |
1251 | { | |
1252 | /*Event -> */ | |
1253 | /*GLOBAL_GR_cmd*/ /*no_Global_GR_cmd*/ | |
1254 | GLOBAL_INVALID, GLOBAL_INVALID, | |
1255 | /*GLOBAL_DISABLE_cmd*/ /*no_Global_Disable_cmd*/ | |
1256 | GLOBAL_INVALID, GLOBAL_INVALID | |
1257 | } | |
1258 | }; | |
1259 | memcpy(bgp->GLOBAL_GR_FSM, local_GLOBAL_GR_FSM, | |
1260 | sizeof(local_GLOBAL_GR_FSM)); | |
1261 | ||
1262 | bgp->global_gr_present_state = GLOBAL_HELPER; | |
dc95985f | 1263 | bgp->present_zebra_gr_state = ZEBRA_GR_DISABLE; |
794b37d5 | 1264 | |
1265 | return BGP_GR_SUCCESS; | |
1266 | } | |
1267 | ||
1268 | int bgp_peer_gr_init(struct peer *peer) | |
1269 | { | |
1270 | if (BGP_DEBUG(graceful_restart, GRACEFUL_RESTART)) | |
1271 | zlog_debug("%s called ..", __func__); | |
1272 | ||
2ba1fe69 | 1273 | struct bgp_peer_gr local_Peer_GR_FSM[BGP_PEER_GR_MODE] |
1274 | [BGP_PEER_GR_EVENT_CMD] = { | |
794b37d5 | 1275 | { |
1276 | /* PEER_HELPER Mode */ | |
1277 | /* Event-> */ /* PEER_GR_CMD */ /* NO_PEER_GR_CMD */ | |
1278 | { PEER_GR, bgp_peer_gr_action }, {PEER_INVALID, NULL }, | |
2ba1fe69 | 1279 | /* Event-> */ /* PEER_DISABLE_CMD */ /* NO_PEER_DISABLE_CMD */ |
794b37d5 | 1280 | {PEER_DISABLE, bgp_peer_gr_action }, {PEER_INVALID, NULL }, |
1281 | /* Event-> */ /* PEER_HELPER_cmd */ /* NO_PEER_HELPER_CMD */ | |
1282 | { PEER_INVALID, NULL }, {PEER_GLOBAL_INHERIT, | |
1283 | bgp_peer_gr_action } | |
1284 | }, | |
1285 | { | |
1286 | /* PEER_GR Mode */ | |
1287 | /* Event-> */ /* PEER_GR_CMD */ /* NO_PEER_GR_CMD */ | |
1288 | { PEER_INVALID, NULL }, { PEER_GLOBAL_INHERIT, | |
1289 | bgp_peer_gr_action }, | |
2ba1fe69 | 1290 | /* Event-> */ /* PEER_DISABLE_CMD */ /* NO_PEER_DISABLE_CMD */ |
794b37d5 | 1291 | {PEER_DISABLE, bgp_peer_gr_action }, { PEER_INVALID, NULL }, |
1292 | /* Event-> */ /* PEER_HELPER_cmd */ /* NO_PEER_HELPER_CMD */ | |
1293 | { PEER_HELPER, bgp_peer_gr_action }, { PEER_INVALID, NULL } | |
1294 | }, | |
1295 | { | |
1296 | /* PEER_DISABLE Mode */ | |
1297 | /* Event-> */ /* PEER_GR_CMD */ /* NO_PEER_GR_CMD */ | |
1298 | { PEER_GR, bgp_peer_gr_action }, { PEER_INVALID, NULL }, | |
2ba1fe69 | 1299 | /* Event-> */ /* PEER_DISABLE_CMD */ /* NO_PEER_DISABLE_CMD */ |
794b37d5 | 1300 | { PEER_INVALID, NULL }, { PEER_GLOBAL_INHERIT, |
1301 | bgp_peer_gr_action }, | |
1302 | /* Event-> */ /* PEER_HELPER_cmd */ /* NO_PEER_HELPER_CMD */ | |
1303 | { PEER_HELPER, bgp_peer_gr_action }, { PEER_INVALID, NULL } | |
1304 | }, | |
1305 | { | |
1306 | /* PEER_INVALID Mode */ | |
1307 | /* Event-> */ /* PEER_GR_CMD */ /* NO_PEER_GR_CMD */ | |
1308 | { PEER_INVALID, NULL }, { PEER_INVALID, NULL }, | |
2ba1fe69 | 1309 | /* Event-> */ /* PEER_DISABLE_CMD */ /* NO_PEER_DISABLE_CMD */ |
794b37d5 | 1310 | { PEER_INVALID, NULL }, { PEER_INVALID, NULL }, |
1311 | /* Event-> */ /* PEER_HELPER_cmd */ /* NO_PEER_HELPER_CMD */ | |
1312 | { PEER_INVALID, NULL }, { PEER_INVALID, NULL }, | |
1313 | }, | |
1314 | { | |
1315 | /* PEER_GLOBAL_INHERIT Mode */ | |
1316 | /* Event-> */ /* PEER_GR_CMD */ /* NO_PEER_GR_CMD */ | |
1317 | { PEER_GR, bgp_peer_gr_action }, { PEER_INVALID, NULL }, | |
2ba1fe69 | 1318 | /* Event-> */ /* PEER_DISABLE_CMD */ /* NO_PEER_DISABLE_CMD */ |
794b37d5 | 1319 | { PEER_DISABLE, bgp_peer_gr_action}, { PEER_INVALID, NULL }, |
1320 | /* Event-> */ /* PEER_HELPER_cmd */ /* NO_PEER_HELPER_CMD */ | |
1321 | { PEER_HELPER, bgp_peer_gr_action }, { PEER_INVALID, NULL } | |
1322 | } | |
1323 | }; | |
1324 | memcpy(&peer->PEER_GR_FSM, local_Peer_GR_FSM, | |
1325 | sizeof(local_Peer_GR_FSM)); | |
1326 | peer->peer_gr_present_state = PEER_GLOBAL_INHERIT; | |
1327 | bgp_peer_move_to_gr_mode(peer, PEER_GLOBAL_INHERIT); | |
1328 | ||
1329 | return BGP_GR_SUCCESS; | |
1330 | } | |
1ff9a340 | 1331 | |
92a9e6f2 HS |
1332 | static void bgp_srv6_init(struct bgp *bgp) |
1333 | { | |
1334 | bgp->srv6_enabled = false; | |
1335 | memset(bgp->srv6_locator_name, 0, sizeof(bgp->srv6_locator_name)); | |
1336 | bgp->srv6_locator_chunks = list_new(); | |
1337 | bgp->srv6_functions = list_new(); | |
1338 | } | |
1339 | ||
1340 | static void bgp_srv6_cleanup(struct bgp *bgp) | |
1341 | { | |
124f7236 HS |
1342 | if (bgp->srv6_locator_chunks) |
1343 | list_delete(&bgp->srv6_locator_chunks); | |
1344 | if (bgp->srv6_functions) | |
1345 | list_delete(&bgp->srv6_functions); | |
92a9e6f2 HS |
1346 | } |
1347 | ||
200df115 | 1348 | /* Allocate new peer object, implicitely locked. */ |
d62a17ae | 1349 | struct peer *peer_new(struct bgp *bgp) |
1350 | { | |
1351 | afi_t afi; | |
1352 | safi_t safi; | |
1353 | struct peer *peer; | |
1354 | struct servent *sp; | |
1355 | ||
1356 | /* bgp argument is absolutely required */ | |
1357 | assert(bgp); | |
d62a17ae | 1358 | |
1359 | /* Allocate new peer. */ | |
1360 | peer = XCALLOC(MTYPE_BGP_PEER, sizeof(struct peer)); | |
1361 | ||
1362 | /* Set default value. */ | |
1363 | peer->fd = -1; | |
1364 | peer->v_start = BGP_INIT_START_TIMER; | |
5d5393b9 | 1365 | peer->v_connect = bgp->default_connect_retry; |
d62a17ae | 1366 | peer->status = Idle; |
1367 | peer->ostatus = Idle; | |
1368 | peer->cur_event = peer->last_event = peer->last_major_event = 0; | |
92375c91 | 1369 | peer->bgp = bgp_lock(bgp); |
d62a17ae | 1370 | peer = peer_lock(peer); /* initial reference */ |
8f2d6021 EB |
1371 | peer->local_role = ROLE_UNDEFINED; |
1372 | peer->remote_role = ROLE_UNDEFINED; | |
d62a17ae | 1373 | peer->password = NULL; |
0db06e37 | 1374 | peer->max_packet_size = BGP_STANDARD_MESSAGE_MAX_PACKET_SIZE; |
d62a17ae | 1375 | |
27c05d4d | 1376 | /* Set default flags. */ |
05c7a1cc | 1377 | FOREACH_AFI_SAFI (afi, safi) { |
d8a9922d DS |
1378 | SET_FLAG(peer->af_flags[afi][safi], PEER_FLAG_SEND_COMMUNITY); |
1379 | SET_FLAG(peer->af_flags[afi][safi], | |
1380 | PEER_FLAG_SEND_EXT_COMMUNITY); | |
1381 | SET_FLAG(peer->af_flags[afi][safi], | |
1382 | PEER_FLAG_SEND_LARGE_COMMUNITY); | |
1383 | ||
1384 | SET_FLAG(peer->af_flags_invert[afi][safi], | |
1385 | PEER_FLAG_SEND_COMMUNITY); | |
1386 | SET_FLAG(peer->af_flags_invert[afi][safi], | |
1387 | PEER_FLAG_SEND_EXT_COMMUNITY); | |
1388 | SET_FLAG(peer->af_flags_invert[afi][safi], | |
1389 | PEER_FLAG_SEND_LARGE_COMMUNITY); | |
dcc68b5e | 1390 | peer->addpath_type[afi][safi] = BGP_ADDPATH_NONE; |
01da2d26 | 1391 | peer->soo[afi][safi] = NULL; |
05c7a1cc | 1392 | } |
637315fc | 1393 | |
bd23c840 PR |
1394 | /* set nexthop-unchanged for l2vpn evpn by default */ |
1395 | SET_FLAG(peer->af_flags[AFI_L2VPN][SAFI_EVPN], | |
1396 | PEER_FLAG_NEXTHOP_UNCHANGED); | |
1397 | ||
d62a17ae | 1398 | SET_FLAG(peer->sflags, PEER_STATUS_CAPABILITY_OPEN); |
718e3744 | 1399 | |
794b37d5 | 1400 | /* Initialize per peer bgp GR FSM */ |
1401 | bgp_peer_gr_init(peer); | |
1402 | ||
d62a17ae | 1403 | /* Create buffers. */ |
424ab01d | 1404 | peer->ibuf = stream_fifo_new(); |
d62a17ae | 1405 | peer->obuf = stream_fifo_new(); |
424ab01d | 1406 | pthread_mutex_init(&peer->io_mtx, NULL); |
0a91ff55 | 1407 | |
424ab01d | 1408 | /* We use a larger buffer for peer->obuf_work in the event that: |
d62a17ae | 1409 | * - We RX a BGP_UPDATE where the attributes alone are just |
556beacf | 1410 | * under BGP_EXTENDED_MESSAGE_MAX_PACKET_SIZE. |
d62a17ae | 1411 | * - The user configures an outbound route-map that does many as-path |
09f6d019 QY |
1412 | * prepends or adds many communities. At most they can have |
1413 | * CMD_ARGC_MAX args in a route-map so there is a finite limit on how | |
1414 | * large they can make the attributes. | |
d62a17ae | 1415 | * |
1416 | * Having a buffer with BGP_MAX_PACKET_SIZE_OVERFLOW allows us to avoid | |
09f6d019 QY |
1417 | * bounds checking for every single attribute as we construct an |
1418 | * UPDATE. | |
d62a17ae | 1419 | */ |
556beacf QY |
1420 | peer->obuf_work = |
1421 | stream_new(BGP_MAX_PACKET_SIZE + BGP_MAX_PACKET_SIZE_OVERFLOW); | |
1422 | peer->ibuf_work = | |
1423 | ringbuf_new(BGP_MAX_PACKET_SIZE * BGP_READ_PACKET_MAX); | |
74ffbfe6 | 1424 | |
556beacf | 1425 | peer->scratch = stream_new(BGP_MAX_PACKET_SIZE); |
718e3744 | 1426 | |
d62a17ae | 1427 | bgp_sync_init(peer); |
718e3744 | 1428 | |
d62a17ae | 1429 | /* Get service port number. */ |
1430 | sp = getservbyname("bgp", "tcp"); | |
1431 | peer->port = (sp == NULL) ? BGP_PORT_DEFAULT : ntohs(sp->s_port); | |
718e3744 | 1432 | |
d62a17ae | 1433 | QOBJ_REG(peer, peer); |
1434 | return peer; | |
718e3744 | 1435 | } |
1436 | ||
1ff9a340 DS |
1437 | /* |
1438 | * This function is invoked when a duplicate peer structure associated with | |
1439 | * a neighbor is being deleted. If this about-to-be-deleted structure is | |
1440 | * the one with all the config, then we have to copy over the info. | |
1441 | */ | |
d62a17ae | 1442 | void peer_xfer_config(struct peer *peer_dst, struct peer *peer_src) |
1443 | { | |
1444 | struct peer_af *paf; | |
1445 | afi_t afi; | |
1446 | safi_t safi; | |
1447 | int afidx; | |
1448 | ||
1449 | assert(peer_src); | |
1450 | assert(peer_dst); | |
1451 | ||
1452 | /* The following function is used by both peer group config copy to | |
1453 | * individual peer and when we transfer config | |
1454 | */ | |
1455 | if (peer_src->change_local_as) | |
1456 | peer_dst->change_local_as = peer_src->change_local_as; | |
1457 | ||
1458 | /* peer flags apply */ | |
1459 | peer_dst->flags = peer_src->flags; | |
d62a17ae | 1460 | |
d7b3cda6 | 1461 | peer_dst->peer_gr_present_state = peer_src->peer_gr_present_state; |
1462 | peer_dst->peer_gr_new_status_flag = peer_src->peer_gr_new_status_flag; | |
1463 | ||
d62a17ae | 1464 | peer_dst->local_as = peer_src->local_as; |
d62a17ae | 1465 | peer_dst->port = peer_src->port; |
4ab46701 AR |
1466 | /* copy tcp_mss value */ |
1467 | peer_dst->tcp_mss = peer_src->tcp_mss; | |
82417ac2 | 1468 | (void)peer_sort(peer_dst); |
d62a17ae | 1469 | peer_dst->rmap_type = peer_src->rmap_type; |
d864dd9e | 1470 | peer_dst->local_role = peer_src->local_role; |
d62a17ae | 1471 | |
0db06e37 DA |
1472 | peer_dst->max_packet_size = peer_src->max_packet_size; |
1473 | ||
d62a17ae | 1474 | /* Timers */ |
1475 | peer_dst->holdtime = peer_src->holdtime; | |
1476 | peer_dst->keepalive = peer_src->keepalive; | |
1477 | peer_dst->connect = peer_src->connect; | |
6c537a18 | 1478 | peer_dst->delayopen = peer_src->delayopen; |
d62a17ae | 1479 | peer_dst->v_holdtime = peer_src->v_holdtime; |
1480 | peer_dst->v_keepalive = peer_src->v_keepalive; | |
1481 | peer_dst->routeadv = peer_src->routeadv; | |
1482 | peer_dst->v_routeadv = peer_src->v_routeadv; | |
6c537a18 | 1483 | peer_dst->v_delayopen = peer_src->v_delayopen; |
d62a17ae | 1484 | |
1485 | /* password apply */ | |
1486 | if (peer_src->password && !peer_dst->password) | |
1487 | peer_dst->password = | |
1488 | XSTRDUP(MTYPE_PEER_PASSWORD, peer_src->password); | |
1489 | ||
05c7a1cc QY |
1490 | FOREACH_AFI_SAFI (afi, safi) { |
1491 | peer_dst->afc[afi][safi] = peer_src->afc[afi][safi]; | |
1492 | peer_dst->af_flags[afi][safi] = peer_src->af_flags[afi][safi]; | |
1493 | peer_dst->allowas_in[afi][safi] = | |
1494 | peer_src->allowas_in[afi][safi]; | |
1495 | peer_dst->weight[afi][safi] = peer_src->weight[afi][safi]; | |
dcc68b5e MS |
1496 | peer_dst->addpath_type[afi][safi] = |
1497 | peer_src->addpath_type[afi][safi]; | |
05c7a1cc | 1498 | } |
d62a17ae | 1499 | |
1500 | for (afidx = BGP_AF_START; afidx < BGP_AF_MAX; afidx++) { | |
1501 | paf = peer_src->peer_af_array[afidx]; | |
e84c59af DA |
1502 | if (paf != NULL) { |
1503 | if (!peer_af_find(peer_dst, paf->afi, paf->safi)) | |
1504 | peer_af_create(peer_dst, paf->afi, paf->safi); | |
1505 | } | |
d62a17ae | 1506 | } |
1507 | ||
1508 | /* update-source apply */ | |
1509 | if (peer_src->update_source) { | |
1510 | if (peer_dst->update_source) | |
1511 | sockunion_free(peer_dst->update_source); | |
e1b36e13 | 1512 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer_dst->update_if); |
d62a17ae | 1513 | peer_dst->update_source = |
1514 | sockunion_dup(peer_src->update_source); | |
1515 | } else if (peer_src->update_if) { | |
0a22ddfb | 1516 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer_dst->update_if); |
d62a17ae | 1517 | if (peer_dst->update_source) { |
1518 | sockunion_free(peer_dst->update_source); | |
1519 | peer_dst->update_source = NULL; | |
1520 | } | |
1521 | peer_dst->update_if = | |
1522 | XSTRDUP(MTYPE_PEER_UPDATE_SOURCE, peer_src->update_if); | |
1523 | } | |
1524 | ||
1525 | if (peer_src->ifname) { | |
0a22ddfb | 1526 | XFREE(MTYPE_BGP_PEER_IFNAME, peer_dst->ifname); |
d62a17ae | 1527 | |
1528 | peer_dst->ifname = | |
1529 | XSTRDUP(MTYPE_BGP_PEER_IFNAME, peer_src->ifname); | |
1530 | } | |
1531 | } | |
1532 | ||
1533 | static int bgp_peer_conf_if_to_su_update_v4(struct peer *peer, | |
1534 | struct interface *ifp) | |
1535 | { | |
1536 | struct connected *ifc; | |
1537 | struct prefix p; | |
d7c0a89a | 1538 | uint32_t addr; |
d62a17ae | 1539 | struct listnode *node; |
1540 | ||
1541 | /* If our IPv4 address on the interface is /30 or /31, we can derive the | |
1542 | * IPv4 address of the other end. | |
1543 | */ | |
1544 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, ifc)) { | |
1545 | if (ifc->address && (ifc->address->family == AF_INET)) { | |
b08dcc3f | 1546 | prefix_copy(&p, CONNECTED_PREFIX(ifc)); |
d62a17ae | 1547 | if (p.prefixlen == 30) { |
1548 | peer->su.sa.sa_family = AF_INET; | |
1549 | addr = ntohl(p.u.prefix4.s_addr); | |
1550 | if (addr % 4 == 1) | |
1551 | peer->su.sin.sin_addr.s_addr = | |
1552 | htonl(addr + 1); | |
1553 | else if (addr % 4 == 2) | |
1554 | peer->su.sin.sin_addr.s_addr = | |
1555 | htonl(addr - 1); | |
8ffedcea | 1556 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
d62a17ae | 1557 | peer->su.sin.sin_len = |
1558 | sizeof(struct sockaddr_in); | |
8ffedcea | 1559 | #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */ |
d62a17ae | 1560 | return 1; |
1561 | } else if (p.prefixlen == 31) { | |
1562 | peer->su.sa.sa_family = AF_INET; | |
1563 | addr = ntohl(p.u.prefix4.s_addr); | |
1564 | if (addr % 2 == 0) | |
1565 | peer->su.sin.sin_addr.s_addr = | |
1566 | htonl(addr + 1); | |
1567 | else | |
1568 | peer->su.sin.sin_addr.s_addr = | |
1569 | htonl(addr - 1); | |
8ffedcea | 1570 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
d62a17ae | 1571 | peer->su.sin.sin_len = |
1572 | sizeof(struct sockaddr_in); | |
8ffedcea | 1573 | #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */ |
d62a17ae | 1574 | return 1; |
1575 | } else if (bgp_debug_neighbor_events(peer)) | |
1576 | zlog_debug( | |
1577 | "%s: IPv4 interface address is not /30 or /31, v4 session not started", | |
1578 | peer->conf_if); | |
1579 | } | |
1580 | } | |
1581 | ||
1582 | return 0; | |
1583 | } | |
1584 | ||
3dc339cd DA |
1585 | static bool bgp_peer_conf_if_to_su_update_v6(struct peer *peer, |
1586 | struct interface *ifp) | |
d62a17ae | 1587 | { |
1588 | struct nbr_connected *ifc_nbr; | |
1589 | ||
1590 | /* Have we learnt the peer's IPv6 link-local address? */ | |
1591 | if (ifp->nbr_connected | |
1592 | && (ifc_nbr = listnode_head(ifp->nbr_connected))) { | |
1593 | peer->su.sa.sa_family = AF_INET6; | |
1594 | memcpy(&peer->su.sin6.sin6_addr, &ifc_nbr->address->u.prefix, | |
1595 | sizeof(struct in6_addr)); | |
a80beece | 1596 | #ifdef SIN6_LEN |
d62a17ae | 1597 | peer->su.sin6.sin6_len = sizeof(struct sockaddr_in6); |
a80beece | 1598 | #endif |
d62a17ae | 1599 | peer->su.sin6.sin6_scope_id = ifp->ifindex; |
3dc339cd | 1600 | return true; |
d62a17ae | 1601 | } |
8ffedcea | 1602 | |
3dc339cd | 1603 | return false; |
89ca90fa | 1604 | } |
1605 | ||
1606 | /* | |
1607 | * Set or reset the peer address socketunion structure based on the | |
1608 | * learnt/derived peer address. If the address has changed, update the | |
1609 | * password on the listen socket, if needed. | |
1610 | */ | |
d62a17ae | 1611 | void bgp_peer_conf_if_to_su_update(struct peer *peer) |
1612 | { | |
1613 | struct interface *ifp; | |
1614 | int prev_family; | |
1615 | int peer_addr_updated = 0; | |
1616 | ||
1617 | if (!peer->conf_if) | |
1618 | return; | |
1619 | ||
d12b745c DS |
1620 | /* |
1621 | * Our peer structure is stored in the bgp->peerhash | |
1622 | * release it before we modify anything. | |
1623 | */ | |
1624 | hash_release(peer->bgp->peerhash, peer); | |
1625 | ||
d62a17ae | 1626 | prev_family = peer->su.sa.sa_family; |
a36898e7 | 1627 | if ((ifp = if_lookup_by_name(peer->conf_if, peer->bgp->vrf_id))) { |
d62a17ae | 1628 | peer->ifp = ifp; |
1629 | /* If BGP unnumbered is not "v6only", we first see if we can | |
1630 | * derive the | |
1631 | * peer's IPv4 address. | |
1632 | */ | |
1633 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_IFPEER_V6ONLY)) | |
1634 | peer_addr_updated = | |
1635 | bgp_peer_conf_if_to_su_update_v4(peer, ifp); | |
1636 | ||
1637 | /* If "v6only" or we can't derive peer's IPv4 address, see if | |
1638 | * we've | |
1639 | * learnt the peer's IPv6 link-local address. This is from the | |
1640 | * source | |
1641 | * IPv6 address in router advertisement. | |
1642 | */ | |
1643 | if (!peer_addr_updated) | |
1644 | peer_addr_updated = | |
1645 | bgp_peer_conf_if_to_su_update_v6(peer, ifp); | |
1646 | } | |
1647 | /* If we could derive the peer address, we may need to install the | |
1648 | * password | |
1649 | * configured for the peer, if any, on the listen socket. Otherwise, | |
1650 | * mark | |
1651 | * that peer's address is not available and uninstall the password, if | |
1652 | * needed. | |
1653 | */ | |
1654 | if (peer_addr_updated) { | |
a14810f4 PM |
1655 | if (CHECK_FLAG(peer->flags, PEER_FLAG_PASSWORD) |
1656 | && prev_family == AF_UNSPEC) | |
d62a17ae | 1657 | bgp_md5_set(peer); |
1658 | } else { | |
a14810f4 PM |
1659 | if (CHECK_FLAG(peer->flags, PEER_FLAG_PASSWORD) |
1660 | && prev_family != AF_UNSPEC) | |
d62a17ae | 1661 | bgp_md5_unset(peer); |
1662 | peer->su.sa.sa_family = AF_UNSPEC; | |
1663 | memset(&peer->su.sin6.sin6_addr, 0, sizeof(struct in6_addr)); | |
1664 | } | |
1665 | ||
d12b745c DS |
1666 | /* |
1667 | * Since our su changed we need to del/add peer to the peerhash | |
1668 | */ | |
8e3aae66 | 1669 | (void)hash_get(peer->bgp->peerhash, peer, hash_alloc_intern); |
a80beece DS |
1670 | } |
1671 | ||
1479ed2f | 1672 | void bgp_recalculate_afi_safi_bestpaths(struct bgp *bgp, afi_t afi, safi_t safi) |
318cac96 | 1673 | { |
9bcb3eef | 1674 | struct bgp_dest *dest, *ndest; |
67009e22 | 1675 | struct bgp_table *table; |
318cac96 | 1676 | |
9bcb3eef DS |
1677 | for (dest = bgp_table_top(bgp->rib[afi][safi]); dest; |
1678 | dest = bgp_route_next(dest)) { | |
1679 | table = bgp_dest_get_bgp_table_info(dest); | |
67009e22 | 1680 | if (table != NULL) { |
318cac96 DW |
1681 | /* Special handling for 2-level routing |
1682 | * tables. */ | |
a4d82a8a | 1683 | if (safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP |
318cac96 | 1684 | || safi == SAFI_EVPN) { |
9bcb3eef DS |
1685 | for (ndest = bgp_table_top(table); ndest; |
1686 | ndest = bgp_route_next(ndest)) | |
1687 | bgp_process(bgp, ndest, afi, safi); | |
318cac96 | 1688 | } else |
9bcb3eef | 1689 | bgp_process(bgp, dest, afi, safi); |
318cac96 DW |
1690 | } |
1691 | } | |
1692 | } | |
1693 | ||
06370dac DW |
1694 | /* Force a bestpath recalculation for all prefixes. This is used |
1695 | * when 'bgp bestpath' commands are entered. | |
1696 | */ | |
d62a17ae | 1697 | void bgp_recalculate_all_bestpaths(struct bgp *bgp) |
1698 | { | |
1699 | afi_t afi; | |
1700 | safi_t safi; | |
d62a17ae | 1701 | |
05c7a1cc QY |
1702 | FOREACH_AFI_SAFI (afi, safi) { |
1703 | bgp_recalculate_afi_safi_bestpaths(bgp, afi, safi); | |
d62a17ae | 1704 | } |
06370dac DW |
1705 | } |
1706 | ||
19bd3dff DS |
1707 | /* |
1708 | * Create new BGP peer. | |
1709 | * | |
1710 | * conf_if and su are mutually exclusive if configuring from the cli. | |
1711 | * If we are handing a doppelganger, then we *must* pass in both | |
1712 | * the original peer's su and conf_if, so that we can appropriately | |
1713 | * track the bgp->peerhash( ie we don't want to remove the current | |
1714 | * one from the config ). | |
1715 | */ | |
d62a17ae | 1716 | struct peer *peer_create(union sockunion *su, const char *conf_if, |
1717 | struct bgp *bgp, as_t local_as, as_t remote_as, | |
e84c59af | 1718 | int as_type, struct peer_group *group) |
d62a17ae | 1719 | { |
1720 | int active; | |
1721 | struct peer *peer; | |
1722 | char buf[SU_ADDRSTRLEN]; | |
e84c59af DA |
1723 | afi_t afi; |
1724 | safi_t safi; | |
d62a17ae | 1725 | |
1726 | peer = peer_new(bgp); | |
1727 | if (conf_if) { | |
1728 | peer->conf_if = XSTRDUP(MTYPE_PEER_CONF_IF, conf_if); | |
19bd3dff DS |
1729 | if (su) |
1730 | peer->su = *su; | |
1731 | else | |
1732 | bgp_peer_conf_if_to_su_update(peer); | |
0a22ddfb | 1733 | XFREE(MTYPE_BGP_PEER_HOST, peer->host); |
d62a17ae | 1734 | peer->host = XSTRDUP(MTYPE_BGP_PEER_HOST, conf_if); |
1735 | } else if (su) { | |
1736 | peer->su = *su; | |
1737 | sockunion2str(su, buf, SU_ADDRSTRLEN); | |
0a22ddfb | 1738 | XFREE(MTYPE_BGP_PEER_HOST, peer->host); |
d62a17ae | 1739 | peer->host = XSTRDUP(MTYPE_BGP_PEER_HOST, buf); |
1740 | } | |
1741 | peer->local_as = local_as; | |
1742 | peer->as = remote_as; | |
1743 | peer->as_type = as_type; | |
1744 | peer->local_id = bgp->router_id; | |
1745 | peer->v_holdtime = bgp->default_holdtime; | |
1746 | peer->v_keepalive = bgp->default_keepalive; | |
b90a8e13 PM |
1747 | peer->v_routeadv = (peer_sort(peer) == BGP_PEER_IBGP) |
1748 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
1749 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
aa24a36a DA |
1750 | if (bgp_config_inprocess()) |
1751 | peer->shut_during_cfg = true; | |
d62a17ae | 1752 | |
1753 | peer = peer_lock(peer); /* bgp peer list reference */ | |
1754 | peer->group = group; | |
1755 | listnode_add_sort(bgp->peer, peer); | |
8e3aae66 | 1756 | (void)hash_get(bgp->peerhash, peer, hash_alloc_intern); |
d62a17ae | 1757 | |
4961a5a2 | 1758 | /* Adjust update-group coalesce timer heuristics for # peers. */ |
37a333fe | 1759 | if (bgp->heuristic_coalesce) { |
14b8641a QY |
1760 | long ct = BGP_DEFAULT_SUBGROUP_COALESCE_TIME |
1761 | + (bgp->peer->count | |
1762 | * BGP_PEER_ADJUST_SUBGROUP_COALESCE_TIME); | |
1763 | bgp->coalesce_time = MIN(BGP_MAX_SUBGROUP_COALESCE_TIME, ct); | |
1764 | } | |
4961a5a2 | 1765 | |
d62a17ae | 1766 | active = peer_active(peer); |
05912a17 DD |
1767 | if (!active) { |
1768 | if (peer->su.sa.sa_family == AF_UNSPEC) | |
1769 | peer->last_reset = PEER_DOWN_NBR_ADDR; | |
1770 | else | |
1771 | peer->last_reset = PEER_DOWN_NOAFI_ACTIVATED; | |
1772 | } | |
d62a17ae | 1773 | |
1774 | /* Last read and reset time set */ | |
083ec940 | 1775 | peer->readtime = peer->resettime = monotime(NULL); |
d62a17ae | 1776 | |
1777 | /* Default TTL set. */ | |
a0903cd2 | 1778 | peer->ttl = (peer->sort == BGP_PEER_IBGP) ? MAXTTL : BGP_DEFAULT_TTL; |
d62a17ae | 1779 | |
8336c896 DA |
1780 | /* Default configured keepalives count for shutdown rtt command */ |
1781 | peer->rtt_keepalive_conf = 1; | |
1782 | ||
d62a17ae | 1783 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); |
1784 | ||
b16bcbba TA |
1785 | /* If 'bgp default <afi>-<safi>' is configured, then activate the |
1786 | * neighbor for the corresponding address family. IPv4 Unicast is | |
1787 | * the only address family enabled by default without expliict | |
1788 | * configuration. | |
e84c59af DA |
1789 | */ |
1790 | FOREACH_AFI_SAFI (afi, safi) { | |
38d11af5 TA |
1791 | if (bgp->default_af[afi][safi]) { |
1792 | peer->afc[afi][safi] = 1; | |
1793 | peer_af_create(peer, afi, safi); | |
e84c59af | 1794 | } |
d62a17ae | 1795 | } |
1796 | ||
f26845f9 QY |
1797 | /* auto shutdown if configured */ |
1798 | if (bgp->autoshutdown) | |
1799 | peer_flag_set(peer, PEER_FLAG_SHUTDOWN); | |
d62a17ae | 1800 | /* Set up peer's events and timers. */ |
f26845f9 | 1801 | else if (!active && peer_active(peer)) |
d62a17ae | 1802 | bgp_timer_set(peer); |
1803 | ||
794b37d5 | 1804 | bgp_peer_gr_flags_update(peer); |
36235319 | 1805 | BGP_GR_ROUTER_DETECT_AND_SEND_CAPABILITY_TO_ZEBRA(bgp, bgp->peer); |
dc95985f | 1806 | |
d62a17ae | 1807 | return peer; |
718e3744 | 1808 | } |
1809 | ||
dd793e4a | 1810 | /* Make accept BGP peer. This function is only called from the test code */ |
d62a17ae | 1811 | struct peer *peer_create_accept(struct bgp *bgp) |
eb821189 | 1812 | { |
d62a17ae | 1813 | struct peer *peer; |
eb821189 | 1814 | |
d62a17ae | 1815 | peer = peer_new(bgp); |
1ff9a340 | 1816 | |
d62a17ae | 1817 | peer = peer_lock(peer); /* bgp peer list reference */ |
1818 | listnode_add_sort(bgp->peer, peer); | |
eb821189 | 1819 | |
d62a17ae | 1820 | return peer; |
eb821189 | 1821 | } |
1822 | ||
318cac96 DW |
1823 | /* |
1824 | * Return true if we have a peer configured to use this afi/safi | |
1825 | */ | |
0b1fb52c | 1826 | bool bgp_afi_safi_peer_exists(struct bgp *bgp, afi_t afi, safi_t safi) |
318cac96 DW |
1827 | { |
1828 | struct listnode *node; | |
1829 | struct peer *peer; | |
1830 | ||
1831 | for (ALL_LIST_ELEMENTS_RO(bgp->peer, node, peer)) { | |
1832 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE)) | |
1833 | continue; | |
1834 | ||
1835 | if (peer->afc[afi][safi]) | |
0b1fb52c | 1836 | return true; |
318cac96 DW |
1837 | } |
1838 | ||
0b1fb52c | 1839 | return false; |
318cac96 DW |
1840 | } |
1841 | ||
718e3744 | 1842 | /* Change peer's AS number. */ |
d62a17ae | 1843 | void peer_as_change(struct peer *peer, as_t as, int as_specified) |
1844 | { | |
70cd87ca MK |
1845 | afi_t afi; |
1846 | safi_t safi; | |
3061acc2 | 1847 | enum bgp_peer_sort origtype, newtype; |
d62a17ae | 1848 | |
1849 | /* Stop peer. */ | |
1850 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
1851 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
1852 | peer->last_reset = PEER_DOWN_REMOTE_AS_CHANGE; | |
1853 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
1854 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
1855 | } else | |
1856 | bgp_session_reset(peer); | |
1857 | } | |
469cbb0f | 1858 | origtype = peer_sort_lookup(peer); |
d62a17ae | 1859 | peer->as = as; |
1860 | peer->as_type = as_specified; | |
1861 | ||
1862 | if (bgp_config_check(peer->bgp, BGP_CONFIG_CONFEDERATION) | |
1863 | && !bgp_confederation_peers_check(peer->bgp, as) | |
1864 | && peer->bgp->as != as) | |
1865 | peer->local_as = peer->bgp->confed_id; | |
1866 | else | |
1867 | peer->local_as = peer->bgp->as; | |
1868 | ||
469cbb0f | 1869 | newtype = peer_sort(peer); |
d62a17ae | 1870 | /* Advertisement-interval reset */ |
b90a8e13 | 1871 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_ROUTEADV)) { |
469cbb0f | 1872 | peer->v_routeadv = (newtype == BGP_PEER_IBGP) |
b90a8e13 PM |
1873 | ? BGP_DEFAULT_IBGP_ROUTEADV |
1874 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 1875 | } |
b90a8e13 | 1876 | |
d62a17ae | 1877 | /* TTL reset */ |
469cbb0f | 1878 | if (newtype == BGP_PEER_IBGP) |
d62a17ae | 1879 | peer->ttl = MAXTTL; |
469cbb0f | 1880 | else if (origtype == BGP_PEER_IBGP) |
a0903cd2 | 1881 | peer->ttl = BGP_DEFAULT_TTL; |
d62a17ae | 1882 | |
1883 | /* reflector-client reset */ | |
469cbb0f | 1884 | if (newtype != BGP_PEER_IBGP) { |
70cd87ca MK |
1885 | |
1886 | FOREACH_AFI_SAFI (afi, safi) | |
1887 | UNSET_FLAG(peer->af_flags[afi][safi], | |
1888 | PEER_FLAG_ORR_GROUP); | |
1889 | ||
d62a17ae | 1890 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_UNICAST], |
1891 | PEER_FLAG_REFLECTOR_CLIENT); | |
1892 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_MULTICAST], | |
1893 | PEER_FLAG_REFLECTOR_CLIENT); | |
1894 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_LABELED_UNICAST], | |
1895 | PEER_FLAG_REFLECTOR_CLIENT); | |
1896 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_MPLS_VPN], | |
1897 | PEER_FLAG_REFLECTOR_CLIENT); | |
1898 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_ENCAP], | |
1899 | PEER_FLAG_REFLECTOR_CLIENT); | |
7c40bf39 | 1900 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_FLOWSPEC], |
1901 | PEER_FLAG_REFLECTOR_CLIENT); | |
d62a17ae | 1902 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_UNICAST], |
1903 | PEER_FLAG_REFLECTOR_CLIENT); | |
1904 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_MULTICAST], | |
1905 | PEER_FLAG_REFLECTOR_CLIENT); | |
1906 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_LABELED_UNICAST], | |
1907 | PEER_FLAG_REFLECTOR_CLIENT); | |
1908 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_MPLS_VPN], | |
1909 | PEER_FLAG_REFLECTOR_CLIENT); | |
1910 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_ENCAP], | |
1911 | PEER_FLAG_REFLECTOR_CLIENT); | |
7c40bf39 | 1912 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_FLOWSPEC], |
1913 | PEER_FLAG_REFLECTOR_CLIENT); | |
d62a17ae | 1914 | UNSET_FLAG(peer->af_flags[AFI_L2VPN][SAFI_EVPN], |
1915 | PEER_FLAG_REFLECTOR_CLIENT); | |
1916 | } | |
718e3744 | 1917 | } |
1918 | ||
1919 | /* If peer does not exist, create new one. If peer already exists, | |
1920 | set AS number to the peer. */ | |
d62a17ae | 1921 | int peer_remote_as(struct bgp *bgp, union sockunion *su, const char *conf_if, |
e84c59af | 1922 | as_t *as, int as_type) |
d62a17ae | 1923 | { |
1924 | struct peer *peer; | |
1925 | as_t local_as; | |
1926 | ||
1927 | if (conf_if) | |
1928 | peer = peer_lookup_by_conf_if(bgp, conf_if); | |
1929 | else | |
1930 | peer = peer_lookup(bgp, su); | |
1931 | ||
1932 | if (peer) { | |
1933 | /* Not allowed for a dynamic peer. */ | |
1934 | if (peer_dynamic_neighbor(peer)) { | |
1935 | *as = peer->as; | |
1936 | return BGP_ERR_INVALID_FOR_DYNAMIC_PEER; | |
1937 | } | |
718e3744 | 1938 | |
d62a17ae | 1939 | /* When this peer is a member of peer-group. */ |
1940 | if (peer->group) { | |
faa16034 DS |
1941 | /* peer-group already has AS number/internal/external */ |
1942 | if (peer->group->conf->as | |
1943 | || peer->group->conf->as_type) { | |
d62a17ae | 1944 | /* Return peer group's AS number. */ |
1945 | *as = peer->group->conf->as; | |
1946 | return BGP_ERR_PEER_GROUP_MEMBER; | |
1947 | } | |
faa16034 | 1948 | |
3061acc2 DA |
1949 | enum bgp_peer_sort peer_sort_type = |
1950 | peer_sort(peer->group->conf); | |
faa16034 DS |
1951 | |
1952 | /* Explicit AS numbers used, compare AS numbers */ | |
1953 | if (as_type == AS_SPECIFIED) { | |
1954 | if (((peer_sort_type == BGP_PEER_IBGP) | |
1955 | && (bgp->as != *as)) | |
1956 | || ((peer_sort_type == BGP_PEER_EBGP) | |
1957 | && (bgp->as == *as))) { | |
d62a17ae | 1958 | *as = peer->as; |
1959 | return BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT; | |
1960 | } | |
1961 | } else { | |
faa16034 DS |
1962 | /* internal/external used, compare as-types */ |
1963 | if (((peer_sort_type == BGP_PEER_IBGP) | |
1964 | && (as_type != AS_INTERNAL)) | |
1965 | || ((peer_sort_type == BGP_PEER_EBGP) | |
1966 | && (as_type != AS_EXTERNAL))) { | |
d62a17ae | 1967 | *as = peer->as; |
1968 | return BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT; | |
1969 | } | |
1970 | } | |
1971 | } | |
93406d87 | 1972 | |
d62a17ae | 1973 | /* Existing peer's AS number change. */ |
1974 | if (((peer->as_type == AS_SPECIFIED) && peer->as != *as) | |
1975 | || (peer->as_type != as_type)) | |
1976 | peer_as_change(peer, *as, as_type); | |
1977 | } else { | |
1978 | if (conf_if) | |
1979 | return BGP_ERR_NO_INTERFACE_CONFIG; | |
1980 | ||
1981 | /* If the peer is not part of our confederation, and its not an | |
1982 | iBGP peer then spoof the source AS */ | |
1983 | if (bgp_config_check(bgp, BGP_CONFIG_CONFEDERATION) | |
1984 | && !bgp_confederation_peers_check(bgp, *as) | |
1985 | && bgp->as != *as) | |
1986 | local_as = bgp->confed_id; | |
1987 | else | |
1988 | local_as = bgp->as; | |
1989 | ||
e84c59af | 1990 | peer_create(su, conf_if, bgp, local_as, *as, as_type, NULL); |
d62a17ae | 1991 | } |
718e3744 | 1992 | |
d62a17ae | 1993 | return 0; |
1994 | } | |
718e3744 | 1995 | |
8f2d6021 | 1996 | const char *bgp_get_name_by_role(uint8_t role) |
d864dd9e | 1997 | { |
865a7e7b EB |
1998 | switch (role) { |
1999 | case ROLE_PROVIDER: | |
2000 | return "provider"; | |
2001 | case ROLE_RS_SERVER: | |
2002 | return "rs-server"; | |
2003 | case ROLE_RS_CLIENT: | |
2004 | return "rs-client"; | |
2005 | case ROLE_CUSTOMER: | |
2006 | return "customer"; | |
2007 | case ROLE_PEER: | |
2008 | return "peer"; | |
2009 | case ROLE_UNDEFINED: | |
8f2d6021 | 2010 | return "undefined"; |
865a7e7b | 2011 | } |
d864dd9e EB |
2012 | return "unknown"; |
2013 | } | |
2014 | ||
9790f44f DS |
2015 | static void peer_group2peer_config_copy_af(struct peer_group *group, |
2016 | struct peer *peer, afi_t afi, | |
2017 | safi_t safi) | |
2018 | { | |
2019 | int in = FILTER_IN; | |
2020 | int out = FILTER_OUT; | |
da5e1a58 DA |
2021 | uint64_t flags_tmp; |
2022 | uint64_t pflags_ovrd; | |
e7103a96 | 2023 | uint8_t *pfilter_ovrd; |
9790f44f | 2024 | struct peer *conf; |
9790f44f DS |
2025 | |
2026 | conf = group->conf; | |
e7103a96 PM |
2027 | pflags_ovrd = peer->af_flags_override[afi][safi]; |
2028 | pfilter_ovrd = &peer->filter_override[afi][safi][in]; | |
9790f44f DS |
2029 | |
2030 | /* peer af_flags apply */ | |
4c391142 PM |
2031 | flags_tmp = conf->af_flags[afi][safi] & ~pflags_ovrd; |
2032 | flags_tmp ^= conf->af_flags_invert[afi][safi] | |
2033 | ^ peer->af_flags_invert[afi][safi]; | |
2034 | flags_tmp &= ~pflags_ovrd; | |
2035 | ||
2036 | UNSET_FLAG(peer->af_flags[afi][safi], ~pflags_ovrd); | |
2037 | SET_FLAG(peer->af_flags[afi][safi], flags_tmp); | |
2038 | SET_FLAG(peer->af_flags_invert[afi][safi], | |
2039 | conf->af_flags_invert[afi][safi]); | |
9790f44f DS |
2040 | |
2041 | /* maximum-prefix */ | |
e7103a96 PM |
2042 | if (!CHECK_FLAG(pflags_ovrd, PEER_FLAG_MAX_PREFIX)) { |
2043 | PEER_ATTR_INHERIT(peer, group, pmax[afi][safi]); | |
2044 | PEER_ATTR_INHERIT(peer, group, pmax_threshold[afi][safi]); | |
2045 | PEER_ATTR_INHERIT(peer, group, pmax_restart[afi][safi]); | |
2046 | } | |
9790f44f | 2047 | |
80444d30 LS |
2048 | /* maximum-prefix-out */ |
2049 | if (!CHECK_FLAG(pflags_ovrd, PEER_FLAG_MAX_PREFIX_OUT)) | |
2050 | PEER_ATTR_INHERIT(peer, group, pmax_out[afi][safi]); | |
2051 | ||
9790f44f | 2052 | /* allowas-in */ |
e7103a96 PM |
2053 | if (!CHECK_FLAG(pflags_ovrd, PEER_FLAG_ALLOWAS_IN)) |
2054 | PEER_ATTR_INHERIT(peer, group, allowas_in[afi][safi]); | |
9790f44f | 2055 | |
01da2d26 DA |
2056 | /* soo */ |
2057 | if (!CHECK_FLAG(pflags_ovrd, PEER_FLAG_SOO)) | |
2058 | PEER_ATTR_INHERIT(peer, group, soo[afi][safi]); | |
2059 | ||
9790f44f | 2060 | /* weight */ |
e7103a96 PM |
2061 | if (!CHECK_FLAG(pflags_ovrd, PEER_FLAG_WEIGHT)) |
2062 | PEER_ATTR_INHERIT(peer, group, weight[afi][safi]); | |
9790f44f DS |
2063 | |
2064 | /* default-originate route-map */ | |
e7103a96 PM |
2065 | if (!CHECK_FLAG(pflags_ovrd, PEER_FLAG_DEFAULT_ORIGINATE)) { |
2066 | PEER_STR_ATTR_INHERIT(peer, group, default_rmap[afi][safi].name, | |
2067 | MTYPE_ROUTE_MAP_NAME); | |
2068 | PEER_ATTR_INHERIT(peer, group, default_rmap[afi][safi].map); | |
9790f44f DS |
2069 | } |
2070 | ||
2071 | /* inbound filter apply */ | |
e7103a96 PM |
2072 | if (!CHECK_FLAG(pfilter_ovrd[in], PEER_FT_DISTRIBUTE_LIST)) { |
2073 | PEER_STR_ATTR_INHERIT(peer, group, | |
2074 | filter[afi][safi].dlist[in].name, | |
2075 | MTYPE_BGP_FILTER_NAME); | |
2076 | PEER_ATTR_INHERIT(peer, group, | |
2077 | filter[afi][safi].dlist[in].alist); | |
9790f44f DS |
2078 | } |
2079 | ||
e7103a96 PM |
2080 | if (!CHECK_FLAG(pfilter_ovrd[in], PEER_FT_PREFIX_LIST)) { |
2081 | PEER_STR_ATTR_INHERIT(peer, group, | |
2082 | filter[afi][safi].plist[in].name, | |
2083 | MTYPE_BGP_FILTER_NAME); | |
2084 | PEER_ATTR_INHERIT(peer, group, | |
2085 | filter[afi][safi].plist[in].plist); | |
9790f44f DS |
2086 | } |
2087 | ||
e7103a96 PM |
2088 | if (!CHECK_FLAG(pfilter_ovrd[in], PEER_FT_FILTER_LIST)) { |
2089 | PEER_STR_ATTR_INHERIT(peer, group, | |
2090 | filter[afi][safi].aslist[in].name, | |
2091 | MTYPE_BGP_FILTER_NAME); | |
2092 | PEER_ATTR_INHERIT(peer, group, | |
2093 | filter[afi][safi].aslist[in].aslist); | |
9790f44f DS |
2094 | } |
2095 | ||
e7103a96 PM |
2096 | if (!CHECK_FLAG(pfilter_ovrd[RMAP_IN], PEER_FT_ROUTE_MAP)) { |
2097 | PEER_STR_ATTR_INHERIT(peer, group, | |
2098 | filter[afi][safi].map[in].name, | |
2099 | MTYPE_BGP_FILTER_NAME); | |
2100 | PEER_ATTR_INHERIT(peer, group, | |
2101 | filter[afi][safi].map[RMAP_IN].map); | |
9790f44f DS |
2102 | } |
2103 | ||
2104 | /* outbound filter apply */ | |
e7103a96 PM |
2105 | if (!CHECK_FLAG(pfilter_ovrd[out], PEER_FT_DISTRIBUTE_LIST)) { |
2106 | PEER_STR_ATTR_INHERIT(peer, group, | |
2107 | filter[afi][safi].dlist[out].name, | |
2108 | MTYPE_BGP_FILTER_NAME); | |
2109 | PEER_ATTR_INHERIT(peer, group, | |
2110 | filter[afi][safi].dlist[out].alist); | |
9790f44f DS |
2111 | } |
2112 | ||
e7103a96 PM |
2113 | if (!CHECK_FLAG(pfilter_ovrd[out], PEER_FT_PREFIX_LIST)) { |
2114 | PEER_STR_ATTR_INHERIT(peer, group, | |
2115 | filter[afi][safi].plist[out].name, | |
2116 | MTYPE_BGP_FILTER_NAME); | |
2117 | PEER_ATTR_INHERIT(peer, group, | |
2118 | filter[afi][safi].plist[out].plist); | |
9790f44f DS |
2119 | } |
2120 | ||
e7103a96 PM |
2121 | if (!CHECK_FLAG(pfilter_ovrd[out], PEER_FT_FILTER_LIST)) { |
2122 | PEER_STR_ATTR_INHERIT(peer, group, | |
2123 | filter[afi][safi].aslist[out].name, | |
2124 | MTYPE_BGP_FILTER_NAME); | |
2125 | PEER_ATTR_INHERIT(peer, group, | |
2126 | filter[afi][safi].aslist[out].aslist); | |
2127 | } | |
2128 | ||
2129 | if (!CHECK_FLAG(pfilter_ovrd[RMAP_OUT], PEER_FT_ROUTE_MAP)) { | |
2130 | PEER_STR_ATTR_INHERIT(peer, group, | |
2131 | filter[afi][safi].map[RMAP_OUT].name, | |
2132 | MTYPE_BGP_FILTER_NAME); | |
2133 | PEER_ATTR_INHERIT(peer, group, | |
2134 | filter[afi][safi].map[RMAP_OUT].map); | |
2135 | } | |
2136 | ||
2137 | /* nondirectional filter apply */ | |
2138 | if (!CHECK_FLAG(pfilter_ovrd[0], PEER_FT_UNSUPPRESS_MAP)) { | |
2139 | PEER_STR_ATTR_INHERIT(peer, group, filter[afi][safi].usmap.name, | |
2140 | MTYPE_BGP_FILTER_NAME); | |
2141 | PEER_ATTR_INHERIT(peer, group, filter[afi][safi].usmap.map); | |
9790f44f | 2142 | } |
dcc68b5e | 2143 | |
9118301e DA |
2144 | /* Conditional Advertisements */ |
2145 | if (!CHECK_FLAG(pfilter_ovrd[RMAP_OUT], PEER_FT_ADVERTISE_MAP)) { | |
2146 | PEER_STR_ATTR_INHERIT(peer, group, | |
2147 | filter[afi][safi].advmap.aname, | |
2148 | MTYPE_BGP_FILTER_NAME); | |
2149 | PEER_ATTR_INHERIT(peer, group, filter[afi][safi].advmap.amap); | |
2150 | PEER_STR_ATTR_INHERIT(peer, group, | |
2151 | filter[afi][safi].advmap.cname, | |
2152 | MTYPE_BGP_FILTER_NAME); | |
2153 | PEER_ATTR_INHERIT(peer, group, filter[afi][safi].advmap.cmap); | |
2154 | PEER_ATTR_INHERIT(peer, group, | |
2155 | filter[afi][safi].advmap.condition); | |
2156 | } | |
2157 | ||
dcc68b5e MS |
2158 | if (peer->addpath_type[afi][safi] == BGP_ADDPATH_NONE) { |
2159 | peer->addpath_type[afi][safi] = conf->addpath_type[afi][safi]; | |
2160 | bgp_addpath_type_changed(conf->bgp); | |
2161 | } | |
9790f44f DS |
2162 | } |
2163 | ||
2164 | static int peer_activate_af(struct peer *peer, afi_t afi, safi_t safi) | |
d62a17ae | 2165 | { |
2166 | int active; | |
9bf904cc | 2167 | struct peer *other; |
718e3744 | 2168 | |
d62a17ae | 2169 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
e50f7cfd | 2170 | flog_err(EC_BGP_PEER_GROUP, "%s was called for peer-group %s", |
1c50c1c0 | 2171 | __func__, peer->host); |
d62a17ae | 2172 | return 1; |
2173 | } | |
3f9c7369 | 2174 | |
d62a17ae | 2175 | /* Do not activate a peer for both SAFI_UNICAST and SAFI_LABELED_UNICAST |
2176 | */ | |
2177 | if ((safi == SAFI_UNICAST && peer->afc[afi][SAFI_LABELED_UNICAST]) | |
2178 | || (safi == SAFI_LABELED_UNICAST && peer->afc[afi][SAFI_UNICAST])) | |
2179 | return BGP_ERR_PEER_SAFI_CONFLICT; | |
2180 | ||
2181 | /* Nothing to do if we've already activated this peer */ | |
2182 | if (peer->afc[afi][safi]) | |
2183 | return 0; | |
2184 | ||
2185 | if (peer_af_create(peer, afi, safi) == NULL) | |
2186 | return 1; | |
2187 | ||
2188 | active = peer_active(peer); | |
2189 | peer->afc[afi][safi] = 1; | |
2190 | ||
9790f44f | 2191 | if (peer->group) |
a4d82a8a | 2192 | peer_group2peer_config_copy_af(peer->group, peer, afi, safi); |
9790f44f | 2193 | |
d62a17ae | 2194 | if (!active && peer_active(peer)) { |
2195 | bgp_timer_set(peer); | |
2196 | } else { | |
feb17238 | 2197 | if (peer_established(peer)) { |
d62a17ae | 2198 | if (CHECK_FLAG(peer->cap, PEER_CAP_DYNAMIC_RCV)) { |
2199 | peer->afc_adv[afi][safi] = 1; | |
2200 | bgp_capability_send(peer, afi, safi, | |
2201 | CAPABILITY_CODE_MP, | |
2202 | CAPABILITY_ACTION_SET); | |
2203 | if (peer->afc_recv[afi][safi]) { | |
2204 | peer->afc_nego[afi][safi] = 1; | |
e1a32ec1 DS |
2205 | bgp_announce_route(peer, afi, safi, |
2206 | false); | |
d62a17ae | 2207 | } |
2208 | } else { | |
2209 | peer->last_reset = PEER_DOWN_AF_ACTIVATE; | |
2210 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
2211 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
2212 | } | |
2213 | } | |
64c1a9b5 DS |
2214 | if (peer->status == OpenSent || peer->status == OpenConfirm) { |
2215 | peer->last_reset = PEER_DOWN_AF_ACTIVATE; | |
2216 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
2217 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
2218 | } | |
9bf904cc DS |
2219 | /* |
2220 | * If we are turning on a AFI/SAFI locally and we've | |
2221 | * started bringing a peer up, we need to tell | |
2222 | * the other peer to restart because we might loose | |
2223 | * configuration here because when the doppelganger | |
2224 | * gets to a established state due to how | |
2225 | * we resolve we could just overwrite the afi/safi | |
2226 | * activation. | |
2227 | */ | |
2228 | other = peer->doppelganger; | |
2229 | if (other | |
2230 | && (other->status == OpenSent | |
2231 | || other->status == OpenConfirm)) { | |
2232 | other->last_reset = PEER_DOWN_AF_ACTIVATE; | |
2233 | bgp_notify_send(other, BGP_NOTIFY_CEASE, | |
2234 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
2235 | } | |
d62a17ae | 2236 | } |
04b6bdc0 | 2237 | |
d62a17ae | 2238 | return 0; |
2239 | } | |
9e08021c | 2240 | |
d62a17ae | 2241 | /* Activate the peer or peer group for specified AFI and SAFI. */ |
2242 | int peer_activate(struct peer *peer, afi_t afi, safi_t safi) | |
2243 | { | |
2244 | int ret = 0; | |
2245 | struct peer_group *group; | |
2246 | struct listnode *node, *nnode; | |
2247 | struct peer *tmp_peer; | |
318cac96 | 2248 | struct bgp *bgp; |
d62a17ae | 2249 | |
2250 | /* Nothing to do if we've already activated this peer */ | |
2251 | if (peer->afc[afi][safi]) | |
2252 | return ret; | |
2253 | ||
318cac96 DW |
2254 | bgp = peer->bgp; |
2255 | ||
d62a17ae | 2256 | /* This is a peer-group so activate all of the members of the |
2257 | * peer-group as well */ | |
2258 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
2259 | ||
2260 | /* Do not activate a peer for both SAFI_UNICAST and | |
2261 | * SAFI_LABELED_UNICAST */ | |
2262 | if ((safi == SAFI_UNICAST | |
2263 | && peer->afc[afi][SAFI_LABELED_UNICAST]) | |
2264 | || (safi == SAFI_LABELED_UNICAST | |
2265 | && peer->afc[afi][SAFI_UNICAST])) | |
2266 | return BGP_ERR_PEER_SAFI_CONFLICT; | |
2267 | ||
2268 | peer->afc[afi][safi] = 1; | |
2269 | group = peer->group; | |
2270 | ||
2271 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, tmp_peer)) { | |
9790f44f | 2272 | ret |= peer_activate_af(tmp_peer, afi, safi); |
d62a17ae | 2273 | } |
2274 | } else { | |
9790f44f | 2275 | ret |= peer_activate_af(peer, afi, safi); |
d62a17ae | 2276 | } |
718e3744 | 2277 | |
a4d82a8a PZ |
2278 | /* If this is the first peer to be activated for this |
2279 | * afi/labeled-unicast recalc bestpaths to trigger label allocation */ | |
0f3ac819 | 2280 | if (ret != BGP_ERR_PEER_SAFI_CONFLICT && safi == SAFI_LABELED_UNICAST |
a4d82a8a | 2281 | && !bgp->allocate_mpls_labels[afi][SAFI_UNICAST]) { |
318cac96 DW |
2282 | |
2283 | if (BGP_DEBUG(zebra, ZEBRA)) | |
4cb5e18b | 2284 | zlog_debug( |
a4d82a8a | 2285 | "peer(s) are now active for labeled-unicast, allocate MPLS labels"); |
318cac96 DW |
2286 | |
2287 | bgp->allocate_mpls_labels[afi][SAFI_UNICAST] = 1; | |
2288 | bgp_recalculate_afi_safi_bestpaths(bgp, afi, SAFI_UNICAST); | |
2289 | } | |
2290 | ||
b98f7728 PG |
2291 | if (safi == SAFI_FLOWSPEC) { |
2292 | /* connect to table manager */ | |
6818e7e5 | 2293 | bgp_zebra_init_tm_connect(bgp); |
b98f7728 | 2294 | } |
d62a17ae | 2295 | return ret; |
718e3744 | 2296 | } |
6b0655a2 | 2297 | |
3dc339cd DA |
2298 | static bool non_peergroup_deactivate_af(struct peer *peer, afi_t afi, |
2299 | safi_t safi) | |
718e3744 | 2300 | { |
d62a17ae | 2301 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
e50f7cfd | 2302 | flog_err(EC_BGP_PEER_GROUP, "%s was called for peer-group %s", |
1c50c1c0 | 2303 | __func__, peer->host); |
3dc339cd | 2304 | return true; |
d62a17ae | 2305 | } |
718e3744 | 2306 | |
d62a17ae | 2307 | /* Nothing to do if we've already deactivated this peer */ |
2308 | if (!peer->afc[afi][safi]) | |
3dc339cd | 2309 | return false; |
718e3744 | 2310 | |
d62a17ae | 2311 | /* De-activate the address family configuration. */ |
2312 | peer->afc[afi][safi] = 0; | |
718e3744 | 2313 | |
d62a17ae | 2314 | if (peer_af_delete(peer, afi, safi) != 0) { |
e50f7cfd | 2315 | flog_err(EC_BGP_PEER_DELETE, |
601837df DS |
2316 | "couldn't delete af structure for peer %s(%s, %s)", |
2317 | peer->host, afi2str(afi), safi2str(safi)); | |
3dc339cd | 2318 | return true; |
d62a17ae | 2319 | } |
718e3744 | 2320 | |
feb17238 | 2321 | if (peer_established(peer)) { |
d62a17ae | 2322 | if (CHECK_FLAG(peer->cap, PEER_CAP_DYNAMIC_RCV)) { |
2323 | peer->afc_adv[afi][safi] = 0; | |
2324 | peer->afc_nego[afi][safi] = 0; | |
2325 | ||
2326 | if (peer_active_nego(peer)) { | |
2327 | bgp_capability_send(peer, afi, safi, | |
2328 | CAPABILITY_CODE_MP, | |
2329 | CAPABILITY_ACTION_UNSET); | |
2330 | bgp_clear_route(peer, afi, safi); | |
2331 | peer->pcount[afi][safi] = 0; | |
2332 | } else { | |
2333 | peer->last_reset = PEER_DOWN_NEIGHBOR_DELETE; | |
2334 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
2335 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
2336 | } | |
2337 | } else { | |
2338 | peer->last_reset = PEER_DOWN_NEIGHBOR_DELETE; | |
2339 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
2340 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
2341 | } | |
2342 | } | |
718e3744 | 2343 | |
3dc339cd | 2344 | return false; |
d62a17ae | 2345 | } |
718e3744 | 2346 | |
d62a17ae | 2347 | int peer_deactivate(struct peer *peer, afi_t afi, safi_t safi) |
718e3744 | 2348 | { |
d62a17ae | 2349 | int ret = 0; |
2350 | struct peer_group *group; | |
2351 | struct peer *tmp_peer; | |
2352 | struct listnode *node, *nnode; | |
318cac96 | 2353 | struct bgp *bgp; |
718e3744 | 2354 | |
d62a17ae | 2355 | /* Nothing to do if we've already de-activated this peer */ |
2356 | if (!peer->afc[afi][safi]) | |
2357 | return ret; | |
718e3744 | 2358 | |
d62a17ae | 2359 | /* This is a peer-group so de-activate all of the members of the |
2360 | * peer-group as well */ | |
2361 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
2362 | peer->afc[afi][safi] = 0; | |
2363 | group = peer->group; | |
718e3744 | 2364 | |
d62a17ae | 2365 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, tmp_peer)) { |
2366 | ret |= non_peergroup_deactivate_af(tmp_peer, afi, safi); | |
2367 | } | |
2368 | } else { | |
2369 | ret |= non_peergroup_deactivate_af(peer, afi, safi); | |
2370 | } | |
718e3744 | 2371 | |
318cac96 DW |
2372 | bgp = peer->bgp; |
2373 | ||
a4d82a8a PZ |
2374 | /* If this is the last peer to be deactivated for this |
2375 | * afi/labeled-unicast recalc bestpaths to trigger label deallocation */ | |
2376 | if (safi == SAFI_LABELED_UNICAST | |
2377 | && bgp->allocate_mpls_labels[afi][SAFI_UNICAST] | |
2378 | && !bgp_afi_safi_peer_exists(bgp, afi, safi)) { | |
318cac96 DW |
2379 | |
2380 | if (BGP_DEBUG(zebra, ZEBRA)) | |
4cb5e18b | 2381 | zlog_debug( |
a4d82a8a | 2382 | "peer(s) are no longer active for labeled-unicast, deallocate MPLS labels"); |
318cac96 DW |
2383 | |
2384 | bgp->allocate_mpls_labels[afi][SAFI_UNICAST] = 0; | |
2385 | bgp_recalculate_afi_safi_bestpaths(bgp, afi, SAFI_UNICAST); | |
2386 | } | |
d62a17ae | 2387 | return ret; |
2388 | } | |
718e3744 | 2389 | |
d7b3cda6 | 2390 | void peer_nsf_stop(struct peer *peer) |
718e3744 | 2391 | { |
d62a17ae | 2392 | afi_t afi; |
2393 | safi_t safi; | |
718e3744 | 2394 | |
d62a17ae | 2395 | UNSET_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT); |
2396 | UNSET_FLAG(peer->sflags, PEER_STATUS_NSF_MODE); | |
718e3744 | 2397 | |
172e4d9f | 2398 | FOREACH_AFI_SAFI_NSF (afi, safi) { |
df8d723c | 2399 | peer->nsf[afi][safi] = 0; |
172e4d9f DA |
2400 | THREAD_OFF(peer->t_llgr_stale[afi][safi]); |
2401 | } | |
d62a17ae | 2402 | |
2403 | if (peer->t_gr_restart) { | |
fa5806c3 | 2404 | THREAD_OFF(peer->t_gr_restart); |
d62a17ae | 2405 | if (bgp_debug_neighbor_events(peer)) |
f70c91dc | 2406 | zlog_debug("%pBP graceful restart timer stopped", peer); |
1ff9a340 | 2407 | } |
d62a17ae | 2408 | if (peer->t_gr_stale) { |
fa5806c3 | 2409 | THREAD_OFF(peer->t_gr_stale); |
d62a17ae | 2410 | if (bgp_debug_neighbor_events(peer)) |
2411 | zlog_debug( | |
f70c91dc DA |
2412 | "%pBP graceful restart stalepath timer stopped", |
2413 | peer); | |
d62a17ae | 2414 | } |
2415 | bgp_clear_route_all(peer); | |
2416 | } | |
718e3744 | 2417 | |
d62a17ae | 2418 | /* Delete peer from confguration. |
2419 | * | |
2420 | * The peer is moved to a dead-end "Deleted" neighbour-state, to allow | |
2421 | * it to "cool off" and refcounts to hit 0, at which state it is freed. | |
2422 | * | |
2423 | * This function /should/ take care to be idempotent, to guard against | |
2424 | * it being called multiple times through stray events that come in | |
2425 | * that happen to result in this function being called again. That | |
2426 | * said, getting here for a "Deleted" peer is a bug in the neighbour | |
2427 | * FSM. | |
2428 | */ | |
2429 | int peer_delete(struct peer *peer) | |
2430 | { | |
2431 | int i; | |
2432 | afi_t afi; | |
2433 | safi_t safi; | |
2434 | struct bgp *bgp; | |
2435 | struct bgp_filter *filter; | |
2436 | struct listnode *pn; | |
2437 | int accept_peer; | |
f14e6fdb | 2438 | |
d62a17ae | 2439 | assert(peer->status != Deleted); |
718e3744 | 2440 | |
d62a17ae | 2441 | bgp = peer->bgp; |
2442 | accept_peer = CHECK_FLAG(peer->sflags, PEER_STATUS_ACCEPT_PEER); | |
080b97f2 | 2443 | |
46aeabed LS |
2444 | bgp_soft_reconfig_table_task_cancel(bgp, NULL, peer); |
2445 | ||
0a6469e5 | 2446 | bgp_keepalives_off(peer); |
424ab01d QY |
2447 | bgp_reads_off(peer); |
2448 | bgp_writes_off(peer); | |
7651f277 DS |
2449 | FOREACH_AFI_SAFI (afi, safi) |
2450 | THREAD_OFF(peer->t_revalidate_all[afi][safi]); | |
424ab01d QY |
2451 | assert(!CHECK_FLAG(peer->thread_flags, PEER_THREAD_WRITES_ON)); |
2452 | assert(!CHECK_FLAG(peer->thread_flags, PEER_THREAD_READS_ON)); | |
0a6469e5 | 2453 | assert(!CHECK_FLAG(peer->thread_flags, PEER_THREAD_KEEPALIVES_ON)); |
424ab01d | 2454 | |
d62a17ae | 2455 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT)) |
2456 | peer_nsf_stop(peer); | |
718e3744 | 2457 | |
d62a17ae | 2458 | SET_FLAG(peer->flags, PEER_FLAG_DELETE); |
718e3744 | 2459 | |
21bfce98 RZ |
2460 | /* Remove BFD settings. */ |
2461 | if (peer->bfd_config) | |
2462 | bgp_peer_remove_bfd_config(peer); | |
e8ba5293 | 2463 | |
d62a17ae | 2464 | /* If this peer belongs to peer group, clear up the |
2465 | relationship. */ | |
2466 | if (peer->group) { | |
2467 | if (peer_dynamic_neighbor(peer)) | |
2468 | peer_drop_dynamic_neighbor(peer); | |
718e3744 | 2469 | |
d62a17ae | 2470 | if ((pn = listnode_lookup(peer->group->peer, peer))) { |
2471 | peer = peer_unlock( | |
2472 | peer); /* group->peer list reference */ | |
2473 | list_delete_node(peer->group->peer, pn); | |
2474 | } | |
2475 | peer->group = NULL; | |
2476 | } | |
718e3744 | 2477 | |
d62a17ae | 2478 | /* Withdraw all information from routing table. We can not use |
2479 | * BGP_EVENT_ADD (peer, BGP_Stop) at here. Because the event is | |
2480 | * executed after peer structure is deleted. | |
2481 | */ | |
2482 | peer->last_reset = PEER_DOWN_NEIGHBOR_DELETE; | |
2483 | bgp_stop(peer); | |
2484 | UNSET_FLAG(peer->flags, PEER_FLAG_DELETE); | |
2485 | ||
2486 | if (peer->doppelganger) { | |
2487 | peer->doppelganger->doppelganger = NULL; | |
2488 | peer->doppelganger = NULL; | |
2489 | } | |
718e3744 | 2490 | |
d62a17ae | 2491 | UNSET_FLAG(peer->sflags, PEER_STATUS_ACCEPT_PEER); |
2492 | bgp_fsm_change_status(peer, Deleted); | |
718e3744 | 2493 | |
d62a17ae | 2494 | /* Remove from NHT */ |
2495 | if (CHECK_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE)) | |
2496 | bgp_unlink_nexthop_by_peer(peer); | |
1ff9a340 | 2497 | |
d62a17ae | 2498 | /* Password configuration */ |
a14810f4 | 2499 | if (CHECK_FLAG(peer->flags, PEER_FLAG_PASSWORD)) { |
d62a17ae | 2500 | XFREE(MTYPE_PEER_PASSWORD, peer->password); |
d62a17ae | 2501 | if (!accept_peer && !BGP_PEER_SU_UNSPEC(peer) |
2734ff6b PR |
2502 | && !CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP) |
2503 | && !CHECK_FLAG(peer->flags, PEER_FLAG_DYNAMIC_NEIGHBOR)) | |
d62a17ae | 2504 | bgp_md5_unset(peer); |
1ff9a340 | 2505 | } |
718e3744 | 2506 | |
d62a17ae | 2507 | bgp_timer_set(peer); /* stops all timers for Deleted */ |
718e3744 | 2508 | |
d62a17ae | 2509 | /* Delete from all peer list. */ |
2510 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP) | |
2511 | && (pn = listnode_lookup(bgp->peer, peer))) { | |
2512 | peer_unlock(peer); /* bgp peer list reference */ | |
2513 | list_delete_node(bgp->peer, pn); | |
2514 | hash_release(bgp->peerhash, peer); | |
2515 | } | |
718e3744 | 2516 | |
d62a17ae | 2517 | /* Buffers. */ |
2518 | if (peer->ibuf) { | |
424ab01d | 2519 | stream_fifo_free(peer->ibuf); |
d62a17ae | 2520 | peer->ibuf = NULL; |
2521 | } | |
f14e6fdb | 2522 | |
d62a17ae | 2523 | if (peer->obuf) { |
2524 | stream_fifo_free(peer->obuf); | |
2525 | peer->obuf = NULL; | |
2526 | } | |
f14e6fdb | 2527 | |
424ab01d | 2528 | if (peer->ibuf_work) { |
74ffbfe6 | 2529 | ringbuf_del(peer->ibuf_work); |
424ab01d QY |
2530 | peer->ibuf_work = NULL; |
2531 | } | |
2532 | ||
2533 | if (peer->obuf_work) { | |
2534 | stream_free(peer->obuf_work); | |
2535 | peer->obuf_work = NULL; | |
d62a17ae | 2536 | } |
f14e6fdb | 2537 | |
d62a17ae | 2538 | if (peer->scratch) { |
2539 | stream_free(peer->scratch); | |
2540 | peer->scratch = NULL; | |
2541 | } | |
f14e6fdb | 2542 | |
d62a17ae | 2543 | /* Local and remote addresses. */ |
2544 | if (peer->su_local) { | |
2545 | sockunion_free(peer->su_local); | |
2546 | peer->su_local = NULL; | |
2547 | } | |
f14e6fdb | 2548 | |
d62a17ae | 2549 | if (peer->su_remote) { |
2550 | sockunion_free(peer->su_remote); | |
2551 | peer->su_remote = NULL; | |
2552 | } | |
f14e6fdb | 2553 | |
d62a17ae | 2554 | /* Free filter related memory. */ |
05c7a1cc QY |
2555 | FOREACH_AFI_SAFI (afi, safi) { |
2556 | filter = &peer->filter[afi][safi]; | |
d62a17ae | 2557 | |
05c7a1cc | 2558 | for (i = FILTER_IN; i < FILTER_MAX; i++) { |
e1b36e13 QY |
2559 | XFREE(MTYPE_BGP_FILTER_NAME, filter->dlist[i].name); |
2560 | XFREE(MTYPE_BGP_FILTER_NAME, filter->plist[i].name); | |
2561 | XFREE(MTYPE_BGP_FILTER_NAME, filter->aslist[i].name); | |
05c7a1cc | 2562 | } |
d62a17ae | 2563 | |
05c7a1cc | 2564 | for (i = RMAP_IN; i < RMAP_MAX; i++) { |
e1b36e13 | 2565 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[i].name); |
05c7a1cc QY |
2566 | } |
2567 | ||
e1b36e13 QY |
2568 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); |
2569 | XFREE(MTYPE_ROUTE_MAP_NAME, peer->default_rmap[afi][safi].name); | |
01da2d26 | 2570 | ecommunity_free(&peer->soo[afi][safi]); |
05c7a1cc QY |
2571 | } |
2572 | ||
a2addae8 RW |
2573 | FOREACH_AFI_SAFI (afi, safi) |
2574 | peer_af_delete(peer, afi, safi); | |
f14e6fdb | 2575 | |
e1b36e13 QY |
2576 | XFREE(MTYPE_BGP_PEER_HOST, peer->hostname); |
2577 | XFREE(MTYPE_BGP_PEER_HOST, peer->domainname); | |
f14e6fdb | 2578 | |
d62a17ae | 2579 | peer_unlock(peer); /* initial reference */ |
f14e6fdb | 2580 | |
d62a17ae | 2581 | return 0; |
fe7d2a48 DS |
2582 | } |
2583 | ||
d62a17ae | 2584 | static int peer_group_cmp(struct peer_group *g1, struct peer_group *g2) |
2585 | { | |
2586 | return strcmp(g1->name, g2->name); | |
6aeb9e78 DS |
2587 | } |
2588 | ||
d62a17ae | 2589 | /* Peer group cofiguration. */ |
2590 | static struct peer_group *peer_group_new(void) | |
718e3744 | 2591 | { |
9f5dc319 | 2592 | return XCALLOC(MTYPE_PEER_GROUP, sizeof(struct peer_group)); |
718e3744 | 2593 | } |
2594 | ||
d62a17ae | 2595 | static void peer_group_free(struct peer_group *group) |
718e3744 | 2596 | { |
d62a17ae | 2597 | XFREE(MTYPE_PEER_GROUP, group); |
718e3744 | 2598 | } |
2599 | ||
d62a17ae | 2600 | struct peer_group *peer_group_lookup(struct bgp *bgp, const char *name) |
718e3744 | 2601 | { |
d62a17ae | 2602 | struct peer_group *group; |
2603 | struct listnode *node, *nnode; | |
2604 | ||
2605 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
2606 | if (strcmp(group->name, name) == 0) | |
2607 | return group; | |
2608 | } | |
2609 | return NULL; | |
2610 | } | |
2611 | ||
2612 | struct peer_group *peer_group_get(struct bgp *bgp, const char *name) | |
2613 | { | |
2614 | struct peer_group *group; | |
2615 | afi_t afi; | |
38d11af5 | 2616 | safi_t safi; |
d62a17ae | 2617 | |
2618 | group = peer_group_lookup(bgp, name); | |
2619 | if (group) | |
2620 | return group; | |
2621 | ||
2622 | group = peer_group_new(); | |
2623 | group->bgp = bgp; | |
0a22ddfb | 2624 | XFREE(MTYPE_PEER_GROUP_HOST, group->name); |
d62a17ae | 2625 | group->name = XSTRDUP(MTYPE_PEER_GROUP_HOST, name); |
2626 | group->peer = list_new(); | |
2627 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
2628 | group->listen_range[afi] = list_new(); | |
2629 | group->conf = peer_new(bgp); | |
38d11af5 TA |
2630 | FOREACH_AFI_SAFI (afi, safi) { |
2631 | if (bgp->default_af[afi][safi]) | |
2632 | group->conf->afc[afi][safi] = 1; | |
2633 | } | |
0a22ddfb | 2634 | XFREE(MTYPE_BGP_PEER_HOST, group->conf->host); |
d62a17ae | 2635 | group->conf->host = XSTRDUP(MTYPE_BGP_PEER_HOST, name); |
2636 | group->conf->group = group; | |
2637 | group->conf->as = 0; | |
a0903cd2 | 2638 | group->conf->ttl = BGP_DEFAULT_TTL; |
e2521429 | 2639 | group->conf->gtsm_hops = BGP_GTSM_HOPS_DISABLED; |
d62a17ae | 2640 | group->conf->v_routeadv = BGP_DEFAULT_EBGP_ROUTEADV; |
d62a17ae | 2641 | SET_FLAG(group->conf->sflags, PEER_STATUS_GROUP); |
2642 | listnode_add_sort(bgp->group, group); | |
718e3744 | 2643 | |
d62a17ae | 2644 | return group; |
718e3744 | 2645 | } |
2646 | ||
d62a17ae | 2647 | static void peer_group2peer_config_copy(struct peer_group *group, |
2648 | struct peer *peer) | |
ad4cbda1 | 2649 | { |
4c391142 | 2650 | uint32_t flags_tmp; |
d62a17ae | 2651 | struct peer *conf; |
ad4cbda1 | 2652 | |
d62a17ae | 2653 | conf = group->conf; |
ad4cbda1 | 2654 | |
d62a17ae | 2655 | /* remote-as */ |
2656 | if (conf->as) | |
2657 | peer->as = conf->as; | |
718e3744 | 2658 | |
a14810f4 PM |
2659 | /* local-as */ |
2660 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_LOCAL_AS)) | |
d62a17ae | 2661 | peer->change_local_as = conf->change_local_as; |
1758dbaa | 2662 | |
a0903cd2 DA |
2663 | /* If peer-group has configured TTL then override it */ |
2664 | if (conf->ttl != BGP_DEFAULT_TTL) | |
2665 | peer->ttl = conf->ttl; | |
518f0eb1 | 2666 | |
d62a17ae | 2667 | /* GTSM hops */ |
2668 | peer->gtsm_hops = conf->gtsm_hops; | |
ad12dde6 | 2669 | |
4c391142 PM |
2670 | /* peer flags apply */ |
2671 | flags_tmp = conf->flags & ~peer->flags_override; | |
2672 | flags_tmp ^= conf->flags_invert ^ peer->flags_invert; | |
2673 | flags_tmp &= ~peer->flags_override; | |
2674 | ||
2675 | UNSET_FLAG(peer->flags, ~peer->flags_override); | |
2676 | SET_FLAG(peer->flags, flags_tmp); | |
2677 | SET_FLAG(peer->flags_invert, conf->flags_invert); | |
ad4cbda1 | 2678 | |
d62a17ae | 2679 | /* peer timers apply */ |
b90a8e13 PM |
2680 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_TIMER)) { |
2681 | PEER_ATTR_INHERIT(peer, group, holdtime); | |
2682 | PEER_ATTR_INHERIT(peer, group, keepalive); | |
2683 | } | |
6aeb9e78 | 2684 | |
b90a8e13 PM |
2685 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_TIMER_CONNECT)) { |
2686 | PEER_ATTR_INHERIT(peer, group, connect); | |
2687 | if (CHECK_FLAG(conf->flags, PEER_FLAG_TIMER_CONNECT)) | |
2688 | peer->v_connect = conf->connect; | |
2689 | else | |
5d5393b9 | 2690 | peer->v_connect = peer->bgp->default_connect_retry; |
b90a8e13 PM |
2691 | } |
2692 | ||
6c537a18 DS |
2693 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_TIMER_DELAYOPEN)) { |
2694 | PEER_ATTR_INHERIT(peer, group, delayopen); | |
2695 | if (CHECK_FLAG(conf->flags, PEER_FLAG_TIMER_DELAYOPEN)) | |
2696 | peer->v_delayopen = conf->delayopen; | |
2697 | else | |
2698 | peer->v_delayopen = peer->bgp->default_delayopen; | |
2699 | } | |
2700 | ||
b90a8e13 PM |
2701 | /* advertisement-interval apply */ |
2702 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_ROUTEADV)) { | |
2703 | PEER_ATTR_INHERIT(peer, group, routeadv); | |
2704 | if (CHECK_FLAG(conf->flags, PEER_FLAG_ROUTEADV)) | |
2705 | peer->v_routeadv = conf->routeadv; | |
2706 | else | |
2707 | peer->v_routeadv = (peer_sort(peer) == BGP_PEER_IBGP) | |
2708 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
2709 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
2710 | } | |
718e3744 | 2711 | |
b3a3290e DS |
2712 | /* capability extended-nexthop apply */ |
2713 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_CAPABILITY_ENHE)) | |
2714 | if (CHECK_FLAG(conf->flags, PEER_FLAG_CAPABILITY_ENHE)) | |
2715 | SET_FLAG(peer->flags, PEER_FLAG_CAPABILITY_ENHE); | |
2716 | ||
d62a17ae | 2717 | /* password apply */ |
a14810f4 PM |
2718 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_PASSWORD)) |
2719 | PEER_STR_ATTR_INHERIT(peer, group, password, | |
2720 | MTYPE_PEER_PASSWORD); | |
718e3744 | 2721 | |
d62a17ae | 2722 | if (!BGP_PEER_SU_UNSPEC(peer)) |
2723 | bgp_md5_set(peer); | |
d4a7a753 | 2724 | |
d62a17ae | 2725 | /* update-source apply */ |
a14810f4 PM |
2726 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_UPDATE_SOURCE)) { |
2727 | if (conf->update_source) { | |
d62a17ae | 2728 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); |
a14810f4 PM |
2729 | PEER_SU_ATTR_INHERIT(peer, group, update_source); |
2730 | } else if (conf->update_if) { | |
d62a17ae | 2731 | sockunion_free(peer->update_source); |
a14810f4 PM |
2732 | PEER_STR_ATTR_INHERIT(peer, group, update_if, |
2733 | MTYPE_PEER_UPDATE_SOURCE); | |
d62a17ae | 2734 | } |
d62a17ae | 2735 | } |
cd92e548 | 2736 | |
7dddd1f7 DA |
2737 | /* role */ |
2738 | PEER_ATTR_INHERIT(peer, group, local_role); | |
2739 | ||
0c0b85b5 NT |
2740 | /* Update GR flags for the peer. */ |
2741 | bgp_peer_gr_flags_update(peer); | |
2742 | ||
21bfce98 RZ |
2743 | /* Apply BFD settings from group to peer if it exists. */ |
2744 | if (conf->bfd_config) { | |
2745 | bgp_peer_configure_bfd(peer, false); | |
2746 | bgp_peer_config_apply(peer, group); | |
2747 | } | |
ad4cbda1 | 2748 | } |
718e3744 | 2749 | |
d62a17ae | 2750 | /* Peer group's remote AS configuration. */ |
2751 | int peer_group_remote_as(struct bgp *bgp, const char *group_name, as_t *as, | |
2752 | int as_type) | |
f14e6fdb | 2753 | { |
d62a17ae | 2754 | struct peer_group *group; |
2755 | struct peer *peer; | |
2756 | struct listnode *node, *nnode; | |
f14e6fdb | 2757 | |
d62a17ae | 2758 | group = peer_group_lookup(bgp, group_name); |
2759 | if (!group) | |
2760 | return -1; | |
f14e6fdb | 2761 | |
d62a17ae | 2762 | if ((as_type == group->conf->as_type) && (group->conf->as == *as)) |
2763 | return 0; | |
f14e6fdb | 2764 | |
f14e6fdb | 2765 | |
d62a17ae | 2766 | /* When we setup peer-group AS number all peer group member's AS |
2767 | number must be updated to same number. */ | |
2768 | peer_as_change(group->conf, *as, as_type); | |
f14e6fdb | 2769 | |
d62a17ae | 2770 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { |
2771 | if (((peer->as_type == AS_SPECIFIED) && peer->as != *as) | |
2772 | || (peer->as_type != as_type)) | |
2773 | peer_as_change(peer, *as, as_type); | |
2774 | } | |
f14e6fdb | 2775 | |
d62a17ae | 2776 | return 0; |
f14e6fdb DS |
2777 | } |
2778 | ||
3dc339cd | 2779 | void peer_notify_unconfig(struct peer *peer) |
4e2786df DA |
2780 | { |
2781 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
2782 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
2783 | BGP_NOTIFY_CEASE_PEER_UNCONFIG); | |
4e2786df DA |
2784 | } |
2785 | ||
95098d96 DA |
2786 | static void peer_notify_shutdown(struct peer *peer) |
2787 | { | |
2788 | if (BGP_PEER_GRACEFUL_RESTART_CAPABLE(peer)) { | |
2789 | if (bgp_debug_neighbor_events(peer)) | |
2790 | zlog_debug( | |
2791 | "%pBP configured Graceful-Restart, skipping shutdown notification", | |
2792 | peer); | |
2793 | return; | |
2794 | } | |
2795 | ||
2796 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
2797 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
2798 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN); | |
2799 | } | |
2800 | ||
3dc339cd | 2801 | void peer_group_notify_unconfig(struct peer_group *group) |
4e2786df DA |
2802 | { |
2803 | struct peer *peer, *other; | |
2804 | struct listnode *node, *nnode; | |
2805 | ||
2806 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
2807 | other = peer->doppelganger; | |
2808 | if (other && other->status != Deleted) { | |
2809 | other->group = NULL; | |
2810 | peer_notify_unconfig(other); | |
2811 | } else | |
2812 | peer_notify_unconfig(peer); | |
2813 | } | |
4e2786df DA |
2814 | } |
2815 | ||
d62a17ae | 2816 | int peer_group_delete(struct peer_group *group) |
f14e6fdb | 2817 | { |
d62a17ae | 2818 | struct bgp *bgp; |
2819 | struct peer *peer; | |
2820 | struct prefix *prefix; | |
2821 | struct peer *other; | |
2822 | struct listnode *node, *nnode; | |
2823 | afi_t afi; | |
f14e6fdb | 2824 | |
d62a17ae | 2825 | bgp = group->bgp; |
f14e6fdb | 2826 | |
d62a17ae | 2827 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { |
2828 | other = peer->doppelganger; | |
b3a3290e DS |
2829 | |
2830 | if (CHECK_FLAG(peer->flags, PEER_FLAG_CAPABILITY_ENHE)) | |
2831 | bgp_zebra_terminate_radv(bgp, peer); | |
2832 | ||
d62a17ae | 2833 | peer_delete(peer); |
2834 | if (other && other->status != Deleted) { | |
2835 | other->group = NULL; | |
2836 | peer_delete(other); | |
2837 | } | |
2838 | } | |
6a154c88 | 2839 | list_delete(&group->peer); |
f14e6fdb | 2840 | |
d62a17ae | 2841 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
2842 | for (ALL_LIST_ELEMENTS(group->listen_range[afi], node, nnode, | |
2843 | prefix)) { | |
63265b5c | 2844 | prefix_free(&prefix); |
d62a17ae | 2845 | } |
6a154c88 | 2846 | list_delete(&group->listen_range[afi]); |
d62a17ae | 2847 | } |
f14e6fdb | 2848 | |
d62a17ae | 2849 | XFREE(MTYPE_PEER_GROUP_HOST, group->name); |
2850 | group->name = NULL; | |
0299c004 | 2851 | |
21bfce98 RZ |
2852 | if (group->conf->bfd_config) |
2853 | bgp_peer_remove_bfd_config(group->conf); | |
f14e6fdb | 2854 | |
d62a17ae | 2855 | group->conf->group = NULL; |
2856 | peer_delete(group->conf); | |
f14e6fdb | 2857 | |
d62a17ae | 2858 | /* Delete from all peer_group list. */ |
2859 | listnode_delete(bgp->group, group); | |
f14e6fdb | 2860 | |
d62a17ae | 2861 | peer_group_free(group); |
f14e6fdb | 2862 | |
d62a17ae | 2863 | return 0; |
2864 | } | |
f14e6fdb | 2865 | |
d62a17ae | 2866 | int peer_group_remote_as_delete(struct peer_group *group) |
2867 | { | |
2868 | struct peer *peer, *other; | |
2869 | struct listnode *node, *nnode; | |
f14e6fdb | 2870 | |
d62a17ae | 2871 | if ((group->conf->as_type == AS_UNSPECIFIED) |
2872 | || ((!group->conf->as) && (group->conf->as_type == AS_SPECIFIED))) | |
2873 | return 0; | |
f14e6fdb | 2874 | |
d62a17ae | 2875 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { |
2876 | other = peer->doppelganger; | |
f14e6fdb | 2877 | |
b3a3290e DS |
2878 | if (CHECK_FLAG(peer->flags, PEER_FLAG_CAPABILITY_ENHE)) |
2879 | bgp_zebra_terminate_radv(peer->bgp, peer); | |
2880 | ||
d62a17ae | 2881 | peer_delete(peer); |
f14e6fdb | 2882 | |
d62a17ae | 2883 | if (other && other->status != Deleted) { |
2884 | other->group = NULL; | |
2885 | peer_delete(other); | |
2886 | } | |
2887 | } | |
2888 | list_delete_all_node(group->peer); | |
f14e6fdb | 2889 | |
d62a17ae | 2890 | group->conf->as = 0; |
2891 | group->conf->as_type = AS_UNSPECIFIED; | |
f14e6fdb | 2892 | |
d62a17ae | 2893 | return 0; |
f14e6fdb | 2894 | } |
d62a17ae | 2895 | |
2896 | int peer_group_listen_range_add(struct peer_group *group, struct prefix *range) | |
f14e6fdb | 2897 | { |
d62a17ae | 2898 | struct prefix *prefix; |
2899 | struct listnode *node, *nnode; | |
2900 | afi_t afi; | |
f14e6fdb | 2901 | |
d62a17ae | 2902 | afi = family2afi(range->family); |
f14e6fdb | 2903 | |
d62a17ae | 2904 | /* Group needs remote AS configured. */ |
2905 | if (group->conf->as_type == AS_UNSPECIFIED) | |
2906 | return BGP_ERR_PEER_GROUP_NO_REMOTE_AS; | |
718e3744 | 2907 | |
d62a17ae | 2908 | /* Ensure no duplicates. Currently we don't care about overlaps. */ |
2909 | for (ALL_LIST_ELEMENTS(group->listen_range[afi], node, nnode, prefix)) { | |
2910 | if (prefix_same(range, prefix)) | |
2911 | return 0; | |
2912 | } | |
2913 | ||
2914 | prefix = prefix_new(); | |
2915 | prefix_copy(prefix, range); | |
2916 | listnode_add(group->listen_range[afi], prefix); | |
9e7d9a61 QY |
2917 | |
2918 | /* Update passwords for new ranges */ | |
2919 | if (group->conf->password) | |
a4faae3a | 2920 | bgp_md5_set_prefix(group->bgp, prefix, group->conf->password); |
9e7d9a61 | 2921 | |
d62a17ae | 2922 | return 0; |
718e3744 | 2923 | } |
6b0655a2 | 2924 | |
d62a17ae | 2925 | int peer_group_listen_range_del(struct peer_group *group, struct prefix *range) |
718e3744 | 2926 | { |
d62a17ae | 2927 | struct prefix *prefix, prefix2; |
2928 | struct listnode *node, *nnode; | |
2929 | struct peer *peer; | |
2930 | afi_t afi; | |
718e3744 | 2931 | |
d62a17ae | 2932 | afi = family2afi(range->family); |
1ff9a340 | 2933 | |
d62a17ae | 2934 | /* Identify the listen range. */ |
2935 | for (ALL_LIST_ELEMENTS(group->listen_range[afi], node, nnode, prefix)) { | |
2936 | if (prefix_same(range, prefix)) | |
2937 | break; | |
1ff9a340 | 2938 | } |
718e3744 | 2939 | |
d62a17ae | 2940 | if (!prefix) |
2941 | return BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_NOT_FOUND; | |
2942 | ||
d62a17ae | 2943 | /* Dispose off any dynamic neighbors that exist due to this listen range |
2944 | */ | |
2945 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
2946 | if (!peer_dynamic_neighbor(peer)) | |
2947 | continue; | |
2948 | ||
0154d8ce DS |
2949 | if (sockunion2hostprefix(&peer->su, &prefix2) |
2950 | && prefix_match(prefix, &prefix2)) { | |
d62a17ae | 2951 | if (bgp_debug_neighbor_events(peer)) |
2952 | zlog_debug( | |
2dbe669b DA |
2953 | "Deleting dynamic neighbor %s group %s upon delete of listen range %pFX", |
2954 | peer->host, group->name, prefix); | |
d62a17ae | 2955 | peer_delete(peer); |
2956 | } | |
2957 | } | |
718e3744 | 2958 | |
d62a17ae | 2959 | /* Get rid of the listen range */ |
2960 | listnode_delete(group->listen_range[afi], prefix); | |
718e3744 | 2961 | |
9e7d9a61 QY |
2962 | /* Remove passwords for deleted ranges */ |
2963 | if (group->conf->password) | |
a4faae3a | 2964 | bgp_md5_unset_prefix(group->bgp, prefix); |
9e7d9a61 | 2965 | |
d62a17ae | 2966 | return 0; |
2967 | } | |
e0701b79 | 2968 | |
d62a17ae | 2969 | /* Bind specified peer to peer group. */ |
2970 | int peer_group_bind(struct bgp *bgp, union sockunion *su, struct peer *peer, | |
2971 | struct peer_group *group, as_t *as) | |
2972 | { | |
2973 | int first_member = 0; | |
2974 | afi_t afi; | |
2975 | safi_t safi; | |
3061acc2 | 2976 | enum bgp_peer_sort ptype, gtype; |
d62a17ae | 2977 | |
2978 | /* Lookup the peer. */ | |
2979 | if (!peer) | |
2980 | peer = peer_lookup(bgp, su); | |
2981 | ||
2982 | /* The peer exist, bind it to the peer-group */ | |
2983 | if (peer) { | |
ed9fb826 | 2984 | /* When the peer already belongs to a peer-group, check the |
d62a17ae | 2985 | * consistency. */ |
ed9fb826 DW |
2986 | if (peer_group_active(peer)) { |
2987 | ||
2988 | /* The peer is already bound to the peer-group, | |
d8a079e8 DW |
2989 | * nothing to do |
2990 | */ | |
ed9fb826 DW |
2991 | if (strcmp(peer->group->name, group->name) == 0) |
2992 | return 0; | |
2993 | else | |
2994 | return BGP_ERR_PEER_GROUP_CANT_CHANGE; | |
2995 | } | |
d62a17ae | 2996 | |
2997 | /* The peer has not specified a remote-as, inherit it from the | |
2998 | * peer-group */ | |
2999 | if (peer->as_type == AS_UNSPECIFIED) { | |
3000 | peer->as_type = group->conf->as_type; | |
3001 | peer->as = group->conf->as; | |
faa16034 | 3002 | peer->sort = group->conf->sort; |
d62a17ae | 3003 | } |
718e3744 | 3004 | |
469cbb0f DS |
3005 | ptype = peer_sort(peer); |
3006 | if (!group->conf->as && ptype != BGP_PEER_UNSPECIFIED) { | |
3007 | gtype = peer_sort(group->conf); | |
3008 | if ((gtype != BGP_PEER_INTERNAL) && (gtype != ptype)) { | |
d62a17ae | 3009 | if (as) |
3010 | *as = peer->as; | |
3011 | return BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT; | |
3012 | } | |
718e3744 | 3013 | |
469cbb0f | 3014 | if (gtype == BGP_PEER_INTERNAL) |
d62a17ae | 3015 | first_member = 1; |
3016 | } | |
718e3744 | 3017 | |
d62a17ae | 3018 | peer_group2peer_config_copy(group, peer); |
3019 | ||
05c7a1cc QY |
3020 | FOREACH_AFI_SAFI (afi, safi) { |
3021 | if (group->conf->afc[afi][safi]) { | |
3022 | peer->afc[afi][safi] = 1; | |
3023 | ||
3024 | if (peer_af_find(peer, afi, safi) | |
3025 | || peer_af_create(peer, afi, safi)) { | |
3026 | peer_group2peer_config_copy_af( | |
3027 | group, peer, afi, safi); | |
3028 | } | |
3029 | } else if (peer->afc[afi][safi]) | |
3030 | peer_deactivate(peer, afi, safi); | |
a4d82a8a | 3031 | } |
d62a17ae | 3032 | |
3033 | if (peer->group) { | |
3034 | assert(group && peer->group == group); | |
3035 | } else { | |
0866cdaf A |
3036 | listnode_delete(bgp->peer, peer); |
3037 | ||
d62a17ae | 3038 | peer->group = group; |
3039 | listnode_add_sort(bgp->peer, peer); | |
3040 | ||
3041 | peer = peer_lock(peer); /* group->peer list reference */ | |
3042 | listnode_add(group->peer, peer); | |
3043 | } | |
718e3744 | 3044 | |
d62a17ae | 3045 | if (first_member) { |
469cbb0f | 3046 | gtype = peer_sort(group->conf); |
d62a17ae | 3047 | /* Advertisement-interval reset */ |
b90a8e13 PM |
3048 | if (!CHECK_FLAG(group->conf->flags, |
3049 | PEER_FLAG_ROUTEADV)) { | |
3050 | group->conf->v_routeadv = | |
469cbb0f | 3051 | (gtype == BGP_PEER_IBGP) |
b90a8e13 PM |
3052 | ? BGP_DEFAULT_IBGP_ROUTEADV |
3053 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 3054 | } |
3055 | ||
3056 | /* ebgp-multihop reset */ | |
469cbb0f | 3057 | if (gtype == BGP_PEER_IBGP) |
d62a17ae | 3058 | group->conf->ttl = MAXTTL; |
d62a17ae | 3059 | } |
718e3744 | 3060 | |
d62a17ae | 3061 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); |
718e3744 | 3062 | |
d62a17ae | 3063 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
3064 | peer->last_reset = PEER_DOWN_RMAP_BIND; | |
3065 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3066 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
3067 | } else { | |
3068 | bgp_session_reset(peer); | |
3069 | } | |
3070 | } | |
718e3744 | 3071 | |
d62a17ae | 3072 | /* Create a new peer. */ |
3073 | else { | |
3074 | if ((group->conf->as_type == AS_SPECIFIED) | |
3075 | && (!group->conf->as)) { | |
3076 | return BGP_ERR_PEER_GROUP_NO_REMOTE_AS; | |
3077 | } | |
718e3744 | 3078 | |
d62a17ae | 3079 | peer = peer_create(su, NULL, bgp, bgp->as, group->conf->as, |
e84c59af | 3080 | group->conf->as_type, group); |
718e3744 | 3081 | |
d62a17ae | 3082 | peer = peer_lock(peer); /* group->peer list reference */ |
3083 | listnode_add(group->peer, peer); | |
718e3744 | 3084 | |
d62a17ae | 3085 | peer_group2peer_config_copy(group, peer); |
a4ed4829 | 3086 | |
d62a17ae | 3087 | /* If the peer-group is active for this afi/safi then activate |
3088 | * for this peer */ | |
05c7a1cc QY |
3089 | FOREACH_AFI_SAFI (afi, safi) { |
3090 | if (group->conf->afc[afi][safi]) { | |
3091 | peer->afc[afi][safi] = 1; | |
e84c59af DA |
3092 | |
3093 | if (!peer_af_find(peer, afi, safi)) | |
3094 | peer_af_create(peer, afi, safi); | |
3095 | ||
05c7a1cc QY |
3096 | peer_group2peer_config_copy_af(group, peer, afi, |
3097 | safi); | |
3098 | } else if (peer->afc[afi][safi]) | |
3099 | peer_deactivate(peer, afi, safi); | |
3100 | } | |
718e3744 | 3101 | |
d62a17ae | 3102 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); |
718e3744 | 3103 | |
d62a17ae | 3104 | /* Set up peer's events and timers. */ |
3105 | if (peer_active(peer)) | |
3106 | bgp_timer_set(peer); | |
3107 | } | |
718e3744 | 3108 | |
d62a17ae | 3109 | return 0; |
718e3744 | 3110 | } |
3111 | ||
cc9f21da | 3112 | static void bgp_startup_timer_expire(struct thread *thread) |
d62a17ae | 3113 | { |
3114 | struct bgp *bgp; | |
718e3744 | 3115 | |
d62a17ae | 3116 | bgp = THREAD_ARG(thread); |
3117 | bgp->t_startup = NULL; | |
d62a17ae | 3118 | } |
e0701b79 | 3119 | |
829e590b DS |
3120 | /* |
3121 | * On shutdown we call the cleanup function which | |
3122 | * does a free of the link list nodes, free up | |
3123 | * the data we are pointing at too. | |
3124 | */ | |
3125 | static void bgp_vrf_string_name_delete(void *data) | |
3126 | { | |
3127 | char *vname = data; | |
3128 | ||
3129 | XFREE(MTYPE_TMP, vname); | |
3130 | } | |
3131 | ||
d62a17ae | 3132 | /* BGP instance creation by `router bgp' commands. */ |
3133 | static struct bgp *bgp_create(as_t *as, const char *name, | |
3134 | enum bgp_instance_type inst_type) | |
3135 | { | |
0291c246 MK |
3136 | struct bgp *bgp; |
3137 | afi_t afi; | |
3138 | safi_t safi; | |
d62a17ae | 3139 | |
4953391b | 3140 | bgp = XCALLOC(MTYPE_BGP, sizeof(struct bgp)); |
d62a17ae | 3141 | |
3142 | if (BGP_DEBUG(zebra, ZEBRA)) { | |
3143 | if (inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
3144 | zlog_debug("Creating Default VRF, AS %u", *as); | |
3145 | else | |
3146 | zlog_debug("Creating %s %s, AS %u", | |
3147 | (inst_type == BGP_INSTANCE_TYPE_VRF) | |
3148 | ? "VRF" | |
3149 | : "VIEW", | |
3150 | name, *as); | |
718e3744 | 3151 | } |
adbac85e | 3152 | |
e2f3a930 T |
3153 | /* Default the EVPN VRF to the default one */ |
3154 | if (inst_type == BGP_INSTANCE_TYPE_DEFAULT && !bgp_master.bgp_evpn) { | |
3155 | bgp_lock(bgp); | |
3156 | bm->bgp_evpn = bgp; | |
3157 | } | |
3158 | ||
d62a17ae | 3159 | bgp_lock(bgp); |
b6c386bb | 3160 | |
8666265e | 3161 | bgp->allow_martian = false; |
b6c386bb | 3162 | bgp_process_queue_init(bgp); |
9df5ac49 | 3163 | bgp->heuristic_coalesce = true; |
d62a17ae | 3164 | bgp->inst_type = inst_type; |
3165 | bgp->vrf_id = (inst_type == BGP_INSTANCE_TYPE_DEFAULT) ? VRF_DEFAULT | |
3166 | : VRF_UNKNOWN; | |
3167 | bgp->peer_self = peer_new(bgp); | |
0a22ddfb | 3168 | XFREE(MTYPE_BGP_PEER_HOST, bgp->peer_self->host); |
d62a17ae | 3169 | bgp->peer_self->host = |
3170 | XSTRDUP(MTYPE_BGP_PEER_HOST, "Static announcement"); | |
e1b36e13 | 3171 | XFREE(MTYPE_BGP_PEER_HOST, bgp->peer_self->hostname); |
6b3ee3a0 | 3172 | if (cmd_hostname_get()) |
60466a63 QY |
3173 | bgp->peer_self->hostname = |
3174 | XSTRDUP(MTYPE_BGP_PEER_HOST, cmd_hostname_get()); | |
d77114b7 | 3175 | |
e1b36e13 | 3176 | XFREE(MTYPE_BGP_PEER_HOST, bgp->peer_self->domainname); |
6b3ee3a0 | 3177 | if (cmd_domainname_get()) |
60466a63 QY |
3178 | bgp->peer_self->domainname = |
3179 | XSTRDUP(MTYPE_BGP_PEER_HOST, cmd_domainname_get()); | |
d62a17ae | 3180 | bgp->peer = list_new(); |
3181 | bgp->peer->cmp = (int (*)(void *, void *))peer_cmp; | |
a4d82a8a | 3182 | bgp->peerhash = hash_create(peer_hash_key_make, peer_hash_same, |
3f65c5b1 | 3183 | "BGP Peer Hash"); |
40520c36 | 3184 | bgp->peerhash->max_size = BGP_PEER_MAX_HASH_SIZE; |
d62a17ae | 3185 | |
3186 | bgp->group = list_new(); | |
3187 | bgp->group->cmp = (int (*)(void *, void *))peer_group_cmp; | |
3188 | ||
05c7a1cc | 3189 | FOREACH_AFI_SAFI (afi, safi) { |
960035b2 PZ |
3190 | bgp->route[afi][safi] = bgp_table_init(bgp, afi, safi); |
3191 | bgp->aggregate[afi][safi] = bgp_table_init(bgp, afi, safi); | |
3192 | bgp->rib[afi][safi] = bgp_table_init(bgp, afi, safi); | |
05c7a1cc QY |
3193 | |
3194 | /* Enable maximum-paths */ | |
3195 | bgp_maximum_paths_set(bgp, afi, safi, BGP_PEER_EBGP, | |
3196 | multipath_num, 0); | |
3197 | bgp_maximum_paths_set(bgp, afi, safi, BGP_PEER_IBGP, | |
3198 | multipath_num, 0); | |
cfd47646 | 3199 | /* Initialize graceful restart info */ |
3200 | bgp->gr_info[afi][safi].eor_required = 0; | |
3201 | bgp->gr_info[afi][safi].eor_received = 0; | |
3202 | bgp->gr_info[afi][safi].t_select_deferral = NULL; | |
3203 | bgp->gr_info[afi][safi].t_route_select = NULL; | |
26742171 | 3204 | bgp->gr_info[afi][safi].gr_deferred = 0; |
05c7a1cc | 3205 | } |
d62a17ae | 3206 | |
d70583f7 D |
3207 | bgp->v_update_delay = bm->v_update_delay; |
3208 | bgp->v_establish_wait = bm->v_establish_wait; | |
d62a17ae | 3209 | bgp->default_local_pref = BGP_DEFAULT_LOCAL_PREF; |
3210 | bgp->default_subgroup_pkt_queue_max = | |
3211 | BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX; | |
d1adb448 | 3212 | bgp_tcp_keepalive_unset(bgp); |
5d5393b9 | 3213 | bgp_timers_unset(bgp); |
b042667a | 3214 | bgp->default_min_holdtime = 0; |
d62a17ae | 3215 | bgp->restart_time = BGP_DEFAULT_RESTART_TIME; |
3216 | bgp->stalepath_time = BGP_DEFAULT_STALEPATH_TIME; | |
cfd47646 | 3217 | bgp->select_defer_time = BGP_DEFAULT_SELECT_DEFERRAL_TIME; |
dc95985f | 3218 | bgp->rib_stale_time = BGP_DEFAULT_RIB_STALE_TIME; |
d62a17ae | 3219 | bgp->dynamic_neighbors_limit = BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT; |
3220 | bgp->dynamic_neighbors_count = 0; | |
b1875e65 | 3221 | bgp->lb_ref_bw = BGP_LINK_BW_REF_BW; |
f7e1c681 | 3222 | bgp->lb_handling = BGP_LINK_BW_ECMP; |
7f972cd8 | 3223 | bgp->reject_as_sets = false; |
389e4f92 | 3224 | bgp->condition_check_period = DEFAULT_CONDITIONAL_ROUTES_POLL_TIME; |
dcc68b5e | 3225 | bgp_addpath_init_bgp_data(&bgp->tx_addpath); |
f852eb98 | 3226 | bgp->fast_convergence = false; |
d62a17ae | 3227 | bgp->as = *as; |
8606be87 | 3228 | bgp->llgr_stale_time = BGP_DEFAULT_LLGR_STALE_TIME; |
d62a17ae | 3229 | |
49e5a4a0 | 3230 | #ifdef ENABLE_BGP_VNC |
d62a17ae | 3231 | if (inst_type != BGP_INSTANCE_TYPE_VRF) { |
3232 | bgp->rfapi = bgp_rfapi_new(bgp); | |
3233 | assert(bgp->rfapi); | |
3234 | assert(bgp->rfapi_cfg); | |
3235 | } | |
3236 | #endif /* ENABLE_BGP_VNC */ | |
adbac85e | 3237 | |
ddb5b488 | 3238 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
e70e9f8e PZ |
3239 | bgp->vpn_policy[afi].bgp = bgp; |
3240 | bgp->vpn_policy[afi].afi = afi; | |
ddb5b488 PZ |
3241 | bgp->vpn_policy[afi].tovpn_label = MPLS_LABEL_NONE; |
3242 | bgp->vpn_policy[afi].tovpn_zebra_vrf_label_last_sent = | |
3243 | MPLS_LABEL_NONE; | |
12a844a5 DS |
3244 | |
3245 | bgp->vpn_policy[afi].import_vrf = list_new(); | |
829e590b DS |
3246 | bgp->vpn_policy[afi].import_vrf->del = |
3247 | bgp_vrf_string_name_delete; | |
12a844a5 | 3248 | bgp->vpn_policy[afi].export_vrf = list_new(); |
829e590b DS |
3249 | bgp->vpn_policy[afi].export_vrf->del = |
3250 | bgp_vrf_string_name_delete; | |
a486300b PG |
3251 | SET_FLAG(bgp->af_flags[afi][SAFI_MPLS_VPN], |
3252 | BGP_VPNVX_RETAIN_ROUTE_TARGET_ALL); | |
ddb5b488 | 3253 | } |
dc95985f | 3254 | if (name) |
d62a17ae | 3255 | bgp->name = XSTRDUP(MTYPE_BGP, name); |
dc95985f | 3256 | |
3257 | thread_add_timer(bm->master, bgp_startup_timer_expire, bgp, | |
36235319 | 3258 | bgp->restart_time, &bgp->t_startup); |
06370dac | 3259 | |
3572fb26 PZ |
3260 | /* printable name we can use in debug messages */ |
3261 | if (inst_type == BGP_INSTANCE_TYPE_DEFAULT) { | |
3262 | bgp->name_pretty = XSTRDUP(MTYPE_BGP, "VRF default"); | |
3263 | } else { | |
3264 | const char *n; | |
3265 | int len; | |
3266 | ||
3267 | if (bgp->name) | |
3268 | n = bgp->name; | |
3269 | else | |
3270 | n = "?"; | |
3271 | ||
3272 | len = 4 + 1 + strlen(n) + 1; /* "view foo\0" */ | |
3273 | ||
3274 | bgp->name_pretty = XCALLOC(MTYPE_BGP, len); | |
3275 | snprintf(bgp->name_pretty, len, "%s %s", | |
3276 | (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) | |
3277 | ? "VRF" | |
3278 | : "VIEW", | |
3279 | n); | |
3280 | } | |
3281 | ||
555e09d4 QY |
3282 | atomic_store_explicit(&bgp->wpkt_quanta, BGP_WRITE_PACKET_MAX, |
3283 | memory_order_relaxed); | |
3284 | atomic_store_explicit(&bgp->rpkt_quanta, BGP_READ_PACKET_MAX, | |
3285 | memory_order_relaxed); | |
d62a17ae | 3286 | bgp->coalesce_time = BGP_DEFAULT_SUBGROUP_COALESCE_TIME; |
b16bcbba | 3287 | bgp->default_af[AFI_IP][SAFI_UNICAST] = true; |
adbac85e | 3288 | |
d62a17ae | 3289 | QOBJ_REG(bgp, bgp); |
adbac85e | 3290 | |
d62a17ae | 3291 | update_bgp_group_init(bgp); |
92708db6 | 3292 | |
3293 | /* assign a unique rd id for auto derivation of vrf's RD */ | |
3294 | bf_assign_index(bm->rd_idspace, bgp->vrf_rd_id); | |
3295 | ||
85c8d83b CS |
3296 | bgp->evpn_info = XCALLOC(MTYPE_BGP_EVPN_INFO, |
3297 | sizeof(struct bgp_evpn_info)); | |
d62a17ae | 3298 | bgp_evpn_init(bgp); |
c589d847 | 3299 | bgp_evpn_vrf_es_init(bgp); |
f3d32faa | 3300 | bgp_pbr_init(bgp); |
92a9e6f2 | 3301 | bgp_srv6_init(bgp); |
794b37d5 | 3302 | |
3303 | /*initilize global GR FSM */ | |
3304 | bgp_global_gr_init(bgp); | |
b17826b7 DS |
3305 | |
3306 | memset(&bgp->ebgprequirespolicywarning, 0, | |
3307 | sizeof(bgp->ebgprequirespolicywarning)); | |
3308 | ||
d62a17ae | 3309 | return bgp; |
718e3744 | 3310 | } |
3311 | ||
d62a17ae | 3312 | /* Return the "default VRF" instance of BGP. */ |
3313 | struct bgp *bgp_get_default(void) | |
718e3744 | 3314 | { |
d62a17ae | 3315 | struct bgp *bgp; |
3316 | struct listnode *node, *nnode; | |
3317 | ||
3318 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) | |
3319 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
3320 | return bgp; | |
3321 | return NULL; | |
718e3744 | 3322 | } |
3323 | ||
d62a17ae | 3324 | /* Lookup BGP entry. */ |
3325 | struct bgp *bgp_lookup(as_t as, const char *name) | |
718e3744 | 3326 | { |
d62a17ae | 3327 | struct bgp *bgp; |
3328 | struct listnode *node, *nnode; | |
6b0655a2 | 3329 | |
d62a17ae | 3330 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) |
3331 | if (bgp->as == as | |
3332 | && ((bgp->name == NULL && name == NULL) | |
3333 | || (bgp->name && name && strcmp(bgp->name, name) == 0))) | |
3334 | return bgp; | |
3335 | return NULL; | |
3336 | } | |
73d70fa6 | 3337 | |
d62a17ae | 3338 | /* Lookup BGP structure by view name. */ |
3339 | struct bgp *bgp_lookup_by_name(const char *name) | |
73d70fa6 | 3340 | { |
d62a17ae | 3341 | struct bgp *bgp; |
3342 | struct listnode *node, *nnode; | |
3343 | ||
3344 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) | |
3345 | if ((bgp->name == NULL && name == NULL) | |
3346 | || (bgp->name && name && strcmp(bgp->name, name) == 0)) | |
3347 | return bgp; | |
3348 | return NULL; | |
73d70fa6 DL |
3349 | } |
3350 | ||
d62a17ae | 3351 | /* Lookup BGP instance based on VRF id. */ |
3352 | /* Note: Only to be used for incoming messages from Zebra. */ | |
3353 | struct bgp *bgp_lookup_by_vrf_id(vrf_id_t vrf_id) | |
73d70fa6 | 3354 | { |
d62a17ae | 3355 | struct vrf *vrf; |
3356 | ||
3357 | /* Lookup VRF (in tree) and follow link. */ | |
3358 | vrf = vrf_lookup_by_id(vrf_id); | |
3359 | if (!vrf) | |
3360 | return NULL; | |
3361 | return (vrf->info) ? (struct bgp *)vrf->info : NULL; | |
73d70fa6 DL |
3362 | } |
3363 | ||
e2f3a930 T |
3364 | /* Sets the BGP instance where EVPN is enabled */ |
3365 | void bgp_set_evpn(struct bgp *bgp) | |
3366 | { | |
3367 | if (bm->bgp_evpn == bgp) | |
3368 | return; | |
3369 | ||
3370 | /* First, release the reference count we hold on the instance */ | |
3371 | if (bm->bgp_evpn) | |
3372 | bgp_unlock(bm->bgp_evpn); | |
3373 | ||
3374 | bm->bgp_evpn = bgp; | |
3375 | ||
3376 | /* Increase the reference count on this new VRF */ | |
3377 | if (bm->bgp_evpn) | |
3378 | bgp_lock(bm->bgp_evpn); | |
3379 | } | |
3380 | ||
3381 | /* Returns the BGP instance where EVPN is enabled, if any */ | |
3382 | struct bgp *bgp_get_evpn(void) | |
3383 | { | |
3384 | return bm->bgp_evpn; | |
3385 | } | |
3386 | ||
e5619c28 PG |
3387 | /* handle socket creation or deletion, if necessary |
3388 | * this is called for all new BGP instances | |
3389 | */ | |
996c9314 LB |
3390 | int bgp_handle_socket(struct bgp *bgp, struct vrf *vrf, vrf_id_t old_vrf_id, |
3391 | bool create) | |
e5619c28 | 3392 | { |
85e9cd9a AMR |
3393 | struct listnode *node; |
3394 | char *address; | |
e5619c28 PG |
3395 | |
3396 | /* Create BGP server socket, if listen mode not disabled */ | |
3397 | if (!bgp || bgp_option_check(BGP_OPT_NO_LISTEN)) | |
3398 | return 0; | |
3ad00234 | 3399 | if (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) { |
e5619c28 PG |
3400 | /* |
3401 | * suppress vrf socket | |
3402 | */ | |
a8f58eb6 | 3403 | if (!create) { |
3ad00234 LB |
3404 | bgp_close_vrf_socket(bgp); |
3405 | return 0; | |
e5619c28 | 3406 | } |
3ad00234 LB |
3407 | if (vrf == NULL) |
3408 | return BGP_ERR_INVALID_VALUE; | |
e5619c28 PG |
3409 | /* do nothing |
3410 | * if vrf_id did not change | |
3411 | */ | |
3412 | if (vrf->vrf_id == old_vrf_id) | |
3413 | return 0; | |
3414 | if (old_vrf_id != VRF_UNKNOWN) { | |
3415 | /* look for old socket. close it. */ | |
3416 | bgp_close_vrf_socket(bgp); | |
3417 | } | |
3418 | /* if backend is not yet identified ( VRF_UNKNOWN) then | |
3419 | * creation will be done later | |
3420 | */ | |
3421 | if (vrf->vrf_id == VRF_UNKNOWN) | |
3422 | return 0; | |
85e9cd9a AMR |
3423 | if (list_isempty(bm->addresses)) { |
3424 | if (bgp_socket(bgp, bm->port, NULL) < 0) | |
3425 | return BGP_ERR_INVALID_VALUE; | |
3426 | } else { | |
3427 | for (ALL_LIST_ELEMENTS_RO(bm->addresses, node, address)) | |
3428 | if (bgp_socket(bgp, bm->port, address) < 0) | |
3429 | return BGP_ERR_INVALID_VALUE; | |
3430 | } | |
3ad00234 LB |
3431 | return 0; |
3432 | } else | |
3433 | return bgp_check_main_socket(create, bgp); | |
e5619c28 PG |
3434 | } |
3435 | ||
bdaadb91 CS |
3436 | int bgp_lookup_by_as_name_type(struct bgp **bgp_val, as_t *as, const char *name, |
3437 | enum bgp_instance_type inst_type) | |
d62a17ae | 3438 | { |
3439 | struct bgp *bgp; | |
3440 | ||
3441 | /* Multiple instance check. */ | |
8fbb4853 DS |
3442 | if (name) |
3443 | bgp = bgp_lookup_by_name(name); | |
3444 | else | |
d62a17ae | 3445 | bgp = bgp_get_default(); |
3446 | ||
8fbb4853 | 3447 | if (bgp) { |
0d6d0208 | 3448 | *bgp_val = bgp; |
8fbb4853 DS |
3449 | if (bgp->as != *as) { |
3450 | *as = bgp->as; | |
d09328e5 | 3451 | return BGP_ERR_AS_MISMATCH; |
d62a17ae | 3452 | } |
8fbb4853 DS |
3453 | if (bgp->inst_type != inst_type) |
3454 | return BGP_ERR_INSTANCE_MISMATCH; | |
d5568431 | 3455 | return BGP_SUCCESS; |
d62a17ae | 3456 | } |
bdaadb91 CS |
3457 | *bgp_val = NULL; |
3458 | ||
3459 | return BGP_SUCCESS; | |
3460 | } | |
3461 | ||
3462 | /* Called from VTY commands. */ | |
3463 | int bgp_get(struct bgp **bgp_val, as_t *as, const char *name, | |
3464 | enum bgp_instance_type inst_type) | |
3465 | { | |
3466 | struct bgp *bgp; | |
3467 | struct vrf *vrf = NULL; | |
3468 | int ret = 0; | |
3469 | ||
3470 | ret = bgp_lookup_by_as_name_type(bgp_val, as, name, inst_type); | |
d09328e5 | 3471 | if (ret || *bgp_val) |
bdaadb91 | 3472 | return ret; |
73d70fa6 | 3473 | |
d62a17ae | 3474 | bgp = bgp_create(as, name, inst_type); |
e7682ccd DS |
3475 | |
3476 | /* | |
3477 | * view instances will never work inside of a vrf | |
3478 | * as such they must always be in the VRF_DEFAULT | |
3479 | * Also we must set this to something useful because | |
3480 | * of the vrf socket code needing an actual useful | |
3481 | * default value to send to the underlying OS. | |
3482 | * | |
3483 | * This code is currently ignoring vrf based | |
3484 | * code using the -Z option( and that is probably | |
3485 | * best addressed elsewhere in the code ) | |
3486 | */ | |
3487 | if (inst_type == BGP_INSTANCE_TYPE_VIEW) | |
3488 | bgp->vrf_id = VRF_DEFAULT; | |
3489 | ||
2951a7a4 | 3490 | bgp_router_id_set(bgp, &bgp->router_id_zebra, true); |
d62a17ae | 3491 | bgp_address_init(bgp); |
db0e1937 | 3492 | bgp_tip_hash_init(bgp); |
d62a17ae | 3493 | bgp_scan_init(bgp); |
3494 | *bgp_val = bgp; | |
eb821189 | 3495 | |
d62a17ae | 3496 | bgp->t_rmap_def_originate_eval = NULL; |
e5cc509c | 3497 | |
d62a17ae | 3498 | /* If Default instance or VRF, link to the VRF structure, if present. */ |
3499 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT | |
3500 | || bgp->inst_type == BGP_INSTANCE_TYPE_VRF) { | |
d62a17ae | 3501 | vrf = bgp_vrf_lookup_by_instance_type(bgp); |
3502 | if (vrf) | |
3503 | bgp_vrf_link(bgp, vrf); | |
3504 | } | |
e5619c28 PG |
3505 | /* BGP server socket already processed if BGP instance |
3506 | * already part of the list | |
3507 | */ | |
3508 | bgp_handle_socket(bgp, vrf, VRF_UNKNOWN, true); | |
3509 | listnode_add(bm->bgp, bgp); | |
718e3744 | 3510 | |
bb4ef1ae DS |
3511 | if (IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
3512 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3513 | zlog_debug("%s: Registering BGP instance %s to zebra", | |
15569c58 | 3514 | __func__, name); |
d62a17ae | 3515 | bgp_zebra_instance_register(bgp); |
bb4ef1ae | 3516 | } |
718e3744 | 3517 | |
5d5393b9 | 3518 | return BGP_CREATED; |
718e3744 | 3519 | } |
6b0655a2 | 3520 | |
6cc0114b IR |
3521 | static void bgp_zclient_set_redist(afi_t afi, int type, unsigned short instance, |
3522 | vrf_id_t vrf_id, bool set) | |
3523 | { | |
3524 | if (instance) { | |
3525 | if (set) | |
3526 | redist_add_instance(&zclient->mi_redist[afi][type], | |
3527 | instance); | |
3528 | else | |
3529 | redist_del_instance(&zclient->mi_redist[afi][type], | |
3530 | instance); | |
3531 | } else { | |
3532 | if (set) | |
3533 | vrf_bitmap_set(zclient->redist[afi][type], vrf_id); | |
3534 | else | |
3535 | vrf_bitmap_unset(zclient->redist[afi][type], vrf_id); | |
3536 | } | |
3537 | } | |
3538 | ||
3539 | static void bgp_set_redist_vrf_bitmaps(struct bgp *bgp, bool set) | |
3540 | { | |
3541 | afi_t afi; | |
3542 | int i; | |
3543 | struct list *red_list; | |
3544 | struct listnode *node; | |
3545 | struct bgp_redist *red; | |
3546 | ||
3547 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
3548 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
3549 | ||
3550 | red_list = bgp->redist[afi][i]; | |
3551 | if (!red_list) | |
3552 | continue; | |
3553 | ||
3554 | for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) | |
3555 | bgp_zclient_set_redist(afi, i, red->instance, | |
3556 | bgp->vrf_id, set); | |
3557 | } | |
3558 | } | |
3559 | } | |
3560 | ||
d62a17ae | 3561 | /* |
3562 | * Make BGP instance "up". Applies only to VRFs (non-default) and | |
3563 | * implies the VRF has been learnt from Zebra. | |
3564 | */ | |
3565 | void bgp_instance_up(struct bgp *bgp) | |
718e3744 | 3566 | { |
d62a17ae | 3567 | struct peer *peer; |
3568 | struct listnode *node, *next; | |
718e3744 | 3569 | |
6cc0114b IR |
3570 | bgp_set_redist_vrf_bitmaps(bgp, true); |
3571 | ||
d62a17ae | 3572 | /* Register with zebra. */ |
3573 | bgp_zebra_instance_register(bgp); | |
718e3744 | 3574 | |
d62a17ae | 3575 | /* Kick off any peers that may have been configured. */ |
3576 | for (ALL_LIST_ELEMENTS(bgp->peer, node, next, peer)) { | |
3577 | if (!BGP_PEER_START_SUPPRESSED(peer)) | |
3578 | BGP_EVENT_ADD(peer, BGP_Start); | |
718e3744 | 3579 | } |
3580 | ||
d62a17ae | 3581 | /* Process any networks that have been configured. */ |
3582 | bgp_static_add(bgp); | |
3583 | } | |
3584 | ||
3585 | /* | |
3586 | * Make BGP instance "down". Applies only to VRFs (non-default) and | |
3587 | * implies the VRF has been deleted by Zebra. | |
3588 | */ | |
3589 | void bgp_instance_down(struct bgp *bgp) | |
3590 | { | |
3591 | struct peer *peer; | |
3592 | struct listnode *node; | |
3593 | struct listnode *next; | |
3594 | ||
3595 | /* Stop timers. */ | |
3596 | if (bgp->t_rmap_def_originate_eval) { | |
fa5806c3 | 3597 | THREAD_OFF(bgp->t_rmap_def_originate_eval); |
d62a17ae | 3598 | bgp_unlock(bgp); /* TODO - This timer is started with a lock - |
3599 | why? */ | |
718e3744 | 3600 | } |
3601 | ||
d62a17ae | 3602 | /* Bring down peers, so corresponding routes are purged. */ |
3603 | for (ALL_LIST_ELEMENTS(bgp->peer, node, next, peer)) { | |
3604 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
3605 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3606 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN); | |
3607 | else | |
3608 | bgp_session_reset(peer); | |
3609 | } | |
718e3744 | 3610 | |
d62a17ae | 3611 | /* Purge network and redistributed routes. */ |
3612 | bgp_purge_static_redist_routes(bgp); | |
ee7ca6c0 | 3613 | |
3614 | /* Cleanup registered nexthops (flags) */ | |
3615 | bgp_cleanup_nexthops(bgp); | |
6cc0114b IR |
3616 | |
3617 | bgp_zebra_instance_deregister(bgp); | |
3618 | ||
3619 | bgp_set_redist_vrf_bitmaps(bgp, false); | |
718e3744 | 3620 | } |
3621 | ||
d62a17ae | 3622 | /* Delete BGP instance. */ |
3623 | int bgp_delete(struct bgp *bgp) | |
3624 | { | |
3625 | struct peer *peer; | |
3626 | struct peer_group *group; | |
3627 | struct listnode *node, *next; | |
3628 | struct vrf *vrf; | |
3629 | afi_t afi; | |
cfd47646 | 3630 | safi_t safi; |
d62a17ae | 3631 | int i; |
cfd47646 | 3632 | struct graceful_restart_info *gr_info; |
d62a17ae | 3633 | |
bf383464 | 3634 | assert(bgp); |
2b9bcf30 | 3635 | |
46aeabed LS |
3636 | bgp_soft_reconfig_table_task_cancel(bgp, NULL, NULL); |
3637 | ||
1bfd9dcc PR |
3638 | /* make sure we withdraw any exported routes */ |
3639 | vpn_leak_prechange(BGP_VPN_POLICY_DIR_TOVPN, AFI_IP, bgp_get_default(), | |
3640 | bgp); | |
3641 | vpn_leak_prechange(BGP_VPN_POLICY_DIR_TOVPN, AFI_IP6, bgp_get_default(), | |
3642 | bgp); | |
3643 | ||
3644 | bgp_vpn_leak_unimport(bgp); | |
3645 | ||
2b9bcf30 DL |
3646 | hook_call(bgp_inst_delete, bgp); |
3647 | ||
7f1f9314 DS |
3648 | FOREACH_AFI_SAFI (afi, safi) |
3649 | THREAD_OFF(bgp->t_revalidate[afi][safi]); | |
3650 | ||
c0539ff4 | 3651 | THREAD_OFF(bgp->t_condition_check); |
d62a17ae | 3652 | THREAD_OFF(bgp->t_startup); |
c969b2ed DS |
3653 | THREAD_OFF(bgp->t_maxmed_onstartup); |
3654 | THREAD_OFF(bgp->t_update_delay); | |
3655 | THREAD_OFF(bgp->t_establish_wait); | |
d62a17ae | 3656 | |
9f822fa2 | 3657 | /* Set flag indicating bgp instance delete in progress */ |
892fedb6 | 3658 | SET_FLAG(bgp->flags, BGP_FLAG_DELETE_IN_PROGRESS); |
9f822fa2 | 3659 | |
cfd47646 | 3660 | /* Delete the graceful restart info */ |
3661 | FOREACH_AFI_SAFI (afi, safi) { | |
56c226e7 DS |
3662 | struct thread *t; |
3663 | ||
cfd47646 | 3664 | gr_info = &bgp->gr_info[afi][safi]; |
13909c4f DS |
3665 | if (!gr_info) |
3666 | continue; | |
b96b4f1c SB |
3667 | t = gr_info->t_select_deferral; |
3668 | if (t) { | |
3669 | void *info = THREAD_ARG(t); | |
13909c4f | 3670 | |
b96b4f1c SB |
3671 | XFREE(MTYPE_TMP, info); |
3672 | } | |
fa5806c3 | 3673 | THREAD_OFF(gr_info->t_select_deferral); |
56c226e7 DS |
3674 | |
3675 | t = gr_info->t_route_select; | |
3676 | if (t) { | |
3677 | void *info = THREAD_ARG(t); | |
3678 | ||
3679 | XFREE(MTYPE_TMP, info); | |
3680 | } | |
fa5806c3 | 3681 | THREAD_OFF(gr_info->t_route_select); |
cfd47646 | 3682 | } |
3683 | ||
d62a17ae | 3684 | if (BGP_DEBUG(zebra, ZEBRA)) { |
3685 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
3686 | zlog_debug("Deleting Default VRF"); | |
3687 | else | |
3688 | zlog_debug("Deleting %s %s", | |
3689 | (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) | |
3690 | ? "VRF" | |
3691 | : "VIEW", | |
3692 | bgp->name); | |
718e3744 | 3693 | } |
3694 | ||
10ebe1ab MK |
3695 | /* unmap from RT list */ |
3696 | bgp_evpn_vrf_delete(bgp); | |
3697 | ||
dfd17258 PG |
3698 | /* unmap bgp vrf label */ |
3699 | vpn_leak_zebra_vrf_label_withdraw(bgp, AFI_IP); | |
3700 | vpn_leak_zebra_vrf_label_withdraw(bgp, AFI_IP6); | |
3701 | ||
d62a17ae | 3702 | /* Stop timers. */ |
3703 | if (bgp->t_rmap_def_originate_eval) { | |
fa5806c3 | 3704 | THREAD_OFF(bgp->t_rmap_def_originate_eval); |
d62a17ae | 3705 | bgp_unlock(bgp); /* TODO - This timer is started with a lock - |
3706 | why? */ | |
718e3744 | 3707 | } |
3708 | ||
d62a17ae | 3709 | /* Inform peers we're going down. */ |
95098d96 DA |
3710 | for (ALL_LIST_ELEMENTS(bgp->peer, node, next, peer)) |
3711 | peer_notify_shutdown(peer); | |
718e3744 | 3712 | |
d62a17ae | 3713 | /* Delete static routes (networks). */ |
3714 | bgp_static_delete(bgp); | |
6b0655a2 | 3715 | |
d62a17ae | 3716 | /* Unset redistribution. */ |
3717 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
3718 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
3719 | if (i != ZEBRA_ROUTE_BGP) | |
3720 | bgp_redistribute_unset(bgp, afi, i, 0); | |
718e3744 | 3721 | |
d62a17ae | 3722 | /* Free peers and peer-groups. */ |
3723 | for (ALL_LIST_ELEMENTS(bgp->group, node, next, group)) | |
3724 | peer_group_delete(group); | |
718e3744 | 3725 | |
d62a17ae | 3726 | for (ALL_LIST_ELEMENTS(bgp->peer, node, next, peer)) |
3727 | peer_delete(peer); | |
3728 | ||
3729 | if (bgp->peer_self) { | |
3730 | peer_delete(bgp->peer_self); | |
3731 | bgp->peer_self = NULL; | |
718e3744 | 3732 | } |
3733 | ||
d62a17ae | 3734 | update_bgp_group_free(bgp); |
718e3744 | 3735 | |
d62a17ae | 3736 | /* TODO - Other memory may need to be freed - e.g., NHT */ |
3737 | ||
49e5a4a0 | 3738 | #ifdef ENABLE_BGP_VNC |
d62a17ae | 3739 | rfapi_delete(bgp); |
3740 | #endif | |
3741 | bgp_cleanup_routes(bgp); | |
718e3744 | 3742 | |
301ad80a PG |
3743 | for (afi = 0; afi < AFI_MAX; ++afi) { |
3744 | if (!bgp->vpn_policy[afi].import_redirect_rtlist) | |
3745 | continue; | |
3746 | ecommunity_free( | |
3747 | &bgp->vpn_policy[afi] | |
3748 | .import_redirect_rtlist); | |
3749 | bgp->vpn_policy[afi].import_redirect_rtlist = NULL; | |
3750 | } | |
718e3744 | 3751 | |
2305e3e4 SB |
3752 | /* Free any memory allocated to holding routemap references */ |
3753 | for (afi = 0; afi < AFI_MAX; ++afi) { | |
3754 | for (enum vpn_policy_direction dir = 0; | |
3755 | dir < BGP_VPN_POLICY_DIR_MAX; ++dir) { | |
3756 | if (bgp->vpn_policy[afi].rmap_name[dir]) | |
3757 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
3758 | bgp->vpn_policy[afi].rmap_name[dir]); | |
3759 | bgp->vpn_policy[afi].rmap[dir] = NULL; | |
3760 | } | |
3761 | } | |
3762 | ||
d62a17ae | 3763 | /* Deregister from Zebra, if needed */ |
bb4ef1ae DS |
3764 | if (IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
3765 | if (BGP_DEBUG(zebra, ZEBRA)) | |
5e81f5dd DS |
3766 | zlog_debug( |
3767 | "%s: deregistering this bgp %s instance from zebra", | |
3768 | __func__, bgp->name); | |
d62a17ae | 3769 | bgp_zebra_instance_deregister(bgp); |
bb4ef1ae | 3770 | } |
718e3744 | 3771 | |
de6058ab AK |
3772 | /* Remove visibility via the master list - there may however still be |
3773 | * routes to be processed still referencing the struct bgp. | |
3774 | */ | |
3775 | listnode_delete(bm->bgp, bgp); | |
3776 | ||
d62a17ae | 3777 | /* Free interfaces in this instance. */ |
3778 | bgp_if_finish(bgp); | |
718e3744 | 3779 | |
d62a17ae | 3780 | vrf = bgp_vrf_lookup_by_instance_type(bgp); |
e5619c28 | 3781 | bgp_handle_socket(bgp, vrf, VRF_UNKNOWN, false); |
d62a17ae | 3782 | if (vrf) |
3783 | bgp_vrf_unlink(bgp, vrf); | |
718e3744 | 3784 | |
e2f3a930 T |
3785 | /* Update EVPN VRF pointer */ |
3786 | if (bm->bgp_evpn == bgp) { | |
3787 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
3788 | bgp_set_evpn(NULL); | |
3789 | else | |
3790 | bgp_set_evpn(bgp_get_default()); | |
3791 | } | |
3792 | ||
b6c386bb DS |
3793 | if (bgp->process_queue) |
3794 | work_queue_free_and_null(&bgp->process_queue); | |
3795 | ||
d62a17ae | 3796 | thread_master_free_unused(bm->master); |
3797 | bgp_unlock(bgp); /* initial reference */ | |
718e3744 | 3798 | |
d62a17ae | 3799 | return 0; |
718e3744 | 3800 | } |
6b0655a2 | 3801 | |
92375c91 | 3802 | void bgp_free(struct bgp *bgp) |
d93f7ffc | 3803 | { |
d62a17ae | 3804 | afi_t afi; |
3805 | safi_t safi; | |
3806 | struct bgp_table *table; | |
9bcb3eef | 3807 | struct bgp_dest *dest; |
f8265580 | 3808 | struct bgp_rmap *rmap; |
d93f7ffc | 3809 | |
d62a17ae | 3810 | QOBJ_UNREG(bgp); |
d93f7ffc | 3811 | |
6a154c88 DL |
3812 | list_delete(&bgp->group); |
3813 | list_delete(&bgp->peer); | |
966f821c | 3814 | |
d62a17ae | 3815 | if (bgp->peerhash) { |
3816 | hash_free(bgp->peerhash); | |
3817 | bgp->peerhash = NULL; | |
3818 | } | |
718e3744 | 3819 | |
05c7a1cc QY |
3820 | FOREACH_AFI_SAFI (afi, safi) { |
3821 | /* Special handling for 2-level routing tables. */ | |
3822 | if (safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP | |
3823 | || safi == SAFI_EVPN) { | |
9bcb3eef DS |
3824 | for (dest = bgp_table_top(bgp->rib[afi][safi]); dest; |
3825 | dest = bgp_route_next(dest)) { | |
3826 | table = bgp_dest_get_bgp_table_info(dest); | |
05c7a1cc | 3827 | bgp_table_finish(&table); |
d62a17ae | 3828 | } |
d62a17ae | 3829 | } |
05c7a1cc QY |
3830 | if (bgp->route[afi][safi]) |
3831 | bgp_table_finish(&bgp->route[afi][safi]); | |
3832 | if (bgp->aggregate[afi][safi]) | |
3833 | bgp_table_finish(&bgp->aggregate[afi][safi]); | |
3834 | if (bgp->rib[afi][safi]) | |
3835 | bgp_table_finish(&bgp->rib[afi][safi]); | |
3836 | rmap = &bgp->table_map[afi][safi]; | |
0a22ddfb | 3837 | XFREE(MTYPE_ROUTE_MAP_NAME, rmap->name); |
05c7a1cc | 3838 | } |
718e3744 | 3839 | |
d62a17ae | 3840 | bgp_scan_finish(bgp); |
3841 | bgp_address_destroy(bgp); | |
db0e1937 | 3842 | bgp_tip_hash_destroy(bgp); |
966f821c | 3843 | |
92708db6 | 3844 | /* release the auto RD id */ |
3845 | bf_release_index(bm->rd_idspace, bgp->vrf_rd_id); | |
3846 | ||
d62a17ae | 3847 | bgp_evpn_cleanup(bgp); |
a6b07429 | 3848 | bgp_pbr_cleanup(bgp); |
92a9e6f2 | 3849 | bgp_srv6_cleanup(bgp); |
85c8d83b | 3850 | XFREE(MTYPE_BGP_EVPN_INFO, bgp->evpn_info); |
829e590b DS |
3851 | |
3852 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
9c2fd3fe | 3853 | enum vpn_policy_direction dir; |
829e590b DS |
3854 | |
3855 | if (bgp->vpn_policy[afi].import_vrf) | |
6a154c88 | 3856 | list_delete(&bgp->vpn_policy[afi].import_vrf); |
829e590b | 3857 | if (bgp->vpn_policy[afi].export_vrf) |
6a154c88 | 3858 | list_delete(&bgp->vpn_policy[afi].export_vrf); |
829e590b DS |
3859 | |
3860 | dir = BGP_VPN_POLICY_DIR_FROMVPN; | |
3861 | if (bgp->vpn_policy[afi].rtlist[dir]) | |
3862 | ecommunity_free(&bgp->vpn_policy[afi].rtlist[dir]); | |
3863 | dir = BGP_VPN_POLICY_DIR_TOVPN; | |
3864 | if (bgp->vpn_policy[afi].rtlist[dir]) | |
3865 | ecommunity_free(&bgp->vpn_policy[afi].rtlist[dir]); | |
3866 | } | |
3867 | ||
70cd87ca MK |
3868 | bgp_orr_cleanup(bgp); |
3869 | ||
0a22ddfb QY |
3870 | XFREE(MTYPE_BGP, bgp->name); |
3871 | XFREE(MTYPE_BGP, bgp->name_pretty); | |
0d020cd6 | 3872 | XFREE(MTYPE_BGP, bgp->snmp_stats); |
966f821c | 3873 | |
d62a17ae | 3874 | XFREE(MTYPE_BGP, bgp); |
718e3744 | 3875 | } |
3876 | ||
d62a17ae | 3877 | struct peer *peer_lookup_by_conf_if(struct bgp *bgp, const char *conf_if) |
718e3744 | 3878 | { |
d62a17ae | 3879 | struct peer *peer; |
3880 | struct listnode *node, *nnode; | |
966f821c | 3881 | |
d62a17ae | 3882 | if (!conf_if) |
3883 | return NULL; | |
6b0655a2 | 3884 | |
d62a17ae | 3885 | if (bgp != NULL) { |
3886 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
3887 | if (peer->conf_if && !strcmp(peer->conf_if, conf_if) | |
3888 | && !CHECK_FLAG(peer->sflags, | |
3889 | PEER_STATUS_ACCEPT_PEER)) | |
3890 | return peer; | |
3891 | } else if (bm->bgp != NULL) { | |
3892 | struct listnode *bgpnode, *nbgpnode; | |
3893 | ||
3894 | for (ALL_LIST_ELEMENTS(bm->bgp, bgpnode, nbgpnode, bgp)) | |
3895 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
3896 | if (peer->conf_if | |
3897 | && !strcmp(peer->conf_if, conf_if) | |
3898 | && !CHECK_FLAG(peer->sflags, | |
3899 | PEER_STATUS_ACCEPT_PEER)) | |
3900 | return peer; | |
3901 | } | |
3902 | return NULL; | |
718e3744 | 3903 | } |
3904 | ||
d62a17ae | 3905 | struct peer *peer_lookup_by_hostname(struct bgp *bgp, const char *hostname) |
718e3744 | 3906 | { |
d62a17ae | 3907 | struct peer *peer; |
3908 | struct listnode *node, *nnode; | |
6b0655a2 | 3909 | |
d62a17ae | 3910 | if (!hostname) |
3911 | return NULL; | |
6b0655a2 | 3912 | |
d62a17ae | 3913 | if (bgp != NULL) { |
3914 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
3915 | if (peer->hostname && !strcmp(peer->hostname, hostname) | |
3916 | && !CHECK_FLAG(peer->sflags, | |
3917 | PEER_STATUS_ACCEPT_PEER)) | |
3918 | return peer; | |
3919 | } else if (bm->bgp != NULL) { | |
3920 | struct listnode *bgpnode, *nbgpnode; | |
3921 | ||
3922 | for (ALL_LIST_ELEMENTS(bm->bgp, bgpnode, nbgpnode, bgp)) | |
3923 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
3924 | if (peer->hostname | |
3925 | && !strcmp(peer->hostname, hostname) | |
3926 | && !CHECK_FLAG(peer->sflags, | |
3927 | PEER_STATUS_ACCEPT_PEER)) | |
3928 | return peer; | |
3929 | } | |
3930 | return NULL; | |
3931 | } | |
3932 | ||
3933 | struct peer *peer_lookup(struct bgp *bgp, union sockunion *su) | |
3934 | { | |
3935 | struct peer *peer = NULL; | |
3936 | struct peer tmp_peer; | |
3937 | ||
3938 | memset(&tmp_peer, 0, sizeof(struct peer)); | |
3939 | ||
3940 | /* | |
3941 | * We do not want to find the doppelganger peer so search for the peer | |
3942 | * in | |
3943 | * the hash that has PEER_FLAG_CONFIG_NODE | |
3944 | */ | |
3945 | SET_FLAG(tmp_peer.flags, PEER_FLAG_CONFIG_NODE); | |
3946 | ||
3947 | tmp_peer.su = *su; | |
3948 | ||
3949 | if (bgp != NULL) { | |
3950 | peer = hash_lookup(bgp->peerhash, &tmp_peer); | |
3951 | } else if (bm->bgp != NULL) { | |
3952 | struct listnode *bgpnode, *nbgpnode; | |
3953 | ||
3954 | for (ALL_LIST_ELEMENTS(bm->bgp, bgpnode, nbgpnode, bgp)) { | |
d62a17ae | 3955 | peer = hash_lookup(bgp->peerhash, &tmp_peer); |
d62a17ae | 3956 | if (peer) |
3957 | break; | |
3958 | } | |
3959 | } | |
3960 | ||
3961 | return peer; | |
3962 | } | |
3963 | ||
3964 | struct peer *peer_create_bind_dynamic_neighbor(struct bgp *bgp, | |
3965 | union sockunion *su, | |
3966 | struct peer_group *group) | |
3967 | { | |
3968 | struct peer *peer; | |
3969 | afi_t afi; | |
3970 | safi_t safi; | |
3971 | ||
3972 | /* Create peer first; we've already checked group config is valid. */ | |
3973 | peer = peer_create(su, NULL, bgp, bgp->as, group->conf->as, | |
e84c59af | 3974 | group->conf->as_type, group); |
d62a17ae | 3975 | if (!peer) |
3976 | return NULL; | |
3977 | ||
3978 | /* Link to group */ | |
3979 | peer = peer_lock(peer); | |
3980 | listnode_add(group->peer, peer); | |
3981 | ||
3982 | peer_group2peer_config_copy(group, peer); | |
3983 | ||
3984 | /* | |
3985 | * Bind peer for all AFs configured for the group. We don't call | |
3986 | * peer_group_bind as that is sub-optimal and does some stuff we don't | |
3987 | * want. | |
3988 | */ | |
05c7a1cc QY |
3989 | FOREACH_AFI_SAFI (afi, safi) { |
3990 | if (!group->conf->afc[afi][safi]) | |
3991 | continue; | |
3992 | peer->afc[afi][safi] = 1; | |
d62a17ae | 3993 | |
05c7a1cc QY |
3994 | if (!peer_af_find(peer, afi, safi)) |
3995 | peer_af_create(peer, afi, safi); | |
d62a17ae | 3996 | |
05c7a1cc QY |
3997 | peer_group2peer_config_copy_af(group, peer, afi, safi); |
3998 | } | |
d62a17ae | 3999 | |
4000 | /* Mark as dynamic, but also as a "config node" for other things to | |
4001 | * work. */ | |
4002 | SET_FLAG(peer->flags, PEER_FLAG_DYNAMIC_NEIGHBOR); | |
4003 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); | |
4004 | ||
4005 | return peer; | |
4006 | } | |
4007 | ||
4008 | struct prefix * | |
4009 | peer_group_lookup_dynamic_neighbor_range(struct peer_group *group, | |
4010 | struct prefix *prefix) | |
4011 | { | |
4012 | struct listnode *node, *nnode; | |
4013 | struct prefix *range; | |
4014 | afi_t afi; | |
4015 | ||
4016 | afi = family2afi(prefix->family); | |
4017 | ||
4018 | if (group->listen_range[afi]) | |
4019 | for (ALL_LIST_ELEMENTS(group->listen_range[afi], node, nnode, | |
4020 | range)) | |
4021 | if (prefix_match(range, prefix)) | |
4022 | return range; | |
4023 | ||
4024 | return NULL; | |
4025 | } | |
4026 | ||
4027 | struct peer_group * | |
4028 | peer_group_lookup_dynamic_neighbor(struct bgp *bgp, struct prefix *prefix, | |
4029 | struct prefix **listen_range) | |
4030 | { | |
4031 | struct prefix *range = NULL; | |
4032 | struct peer_group *group = NULL; | |
4033 | struct listnode *node, *nnode; | |
4034 | ||
4035 | *listen_range = NULL; | |
4036 | if (bgp != NULL) { | |
4037 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) | |
4038 | if ((range = peer_group_lookup_dynamic_neighbor_range( | |
4039 | group, prefix))) | |
4040 | break; | |
4041 | } else if (bm->bgp != NULL) { | |
4042 | struct listnode *bgpnode, *nbgpnode; | |
4043 | ||
4044 | for (ALL_LIST_ELEMENTS(bm->bgp, bgpnode, nbgpnode, bgp)) | |
4045 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) | |
4046 | if ((range = peer_group_lookup_dynamic_neighbor_range( | |
4047 | group, prefix))) | |
4048 | goto found_range; | |
4049 | } | |
4050 | ||
4051 | found_range: | |
4052 | *listen_range = range; | |
4053 | return (group && range) ? group : NULL; | |
4054 | } | |
4055 | ||
4056 | struct peer *peer_lookup_dynamic_neighbor(struct bgp *bgp, union sockunion *su) | |
4057 | { | |
4058 | struct peer_group *group; | |
4059 | struct bgp *gbgp; | |
4060 | struct peer *peer; | |
4061 | struct prefix prefix; | |
4062 | struct prefix *listen_range; | |
4063 | int dncount; | |
d62a17ae | 4064 | |
0154d8ce DS |
4065 | if (!sockunion2hostprefix(su, &prefix)) |
4066 | return NULL; | |
d62a17ae | 4067 | |
4068 | /* See if incoming connection matches a configured listen range. */ | |
4069 | group = peer_group_lookup_dynamic_neighbor(bgp, &prefix, &listen_range); | |
4070 | ||
4071 | if (!group) | |
4072 | return NULL; | |
4073 | ||
4074 | ||
4075 | gbgp = group->bgp; | |
4076 | ||
4077 | if (!gbgp) | |
4078 | return NULL; | |
4079 | ||
d62a17ae | 4080 | if (bgp_debug_neighbor_events(NULL)) |
4081 | zlog_debug( | |
511211bf DA |
4082 | "Dynamic Neighbor %pFX matches group %s listen range %pFX", |
4083 | &prefix, group->name, listen_range); | |
d62a17ae | 4084 | |
4085 | /* Are we within the listen limit? */ | |
4086 | dncount = gbgp->dynamic_neighbors_count; | |
4087 | ||
4088 | if (dncount >= gbgp->dynamic_neighbors_limit) { | |
4089 | if (bgp_debug_neighbor_events(NULL)) | |
511211bf DA |
4090 | zlog_debug( |
4091 | "Dynamic Neighbor %pFX rejected - at limit %d", | |
4092 | &prefix, gbgp->dynamic_neighbors_limit); | |
d62a17ae | 4093 | return NULL; |
4094 | } | |
4095 | ||
4096 | /* Ensure group is not disabled. */ | |
4097 | if (CHECK_FLAG(group->conf->flags, PEER_FLAG_SHUTDOWN)) { | |
4098 | if (bgp_debug_neighbor_events(NULL)) | |
4099 | zlog_debug( | |
511211bf DA |
4100 | "Dynamic Neighbor %pFX rejected - group %s disabled", |
4101 | &prefix, group->name); | |
d62a17ae | 4102 | return NULL; |
4103 | } | |
4104 | ||
4105 | /* Check that at least one AF is activated for the group. */ | |
4106 | if (!peer_group_af_configured(group)) { | |
4107 | if (bgp_debug_neighbor_events(NULL)) | |
4108 | zlog_debug( | |
511211bf DA |
4109 | "Dynamic Neighbor %pFX rejected - no AF activated for group %s", |
4110 | &prefix, group->name); | |
d62a17ae | 4111 | return NULL; |
4112 | } | |
4113 | ||
4114 | /* Create dynamic peer and bind to associated group. */ | |
4115 | peer = peer_create_bind_dynamic_neighbor(gbgp, su, group); | |
4116 | assert(peer); | |
4117 | ||
4118 | gbgp->dynamic_neighbors_count = ++dncount; | |
4119 | ||
4120 | if (bgp_debug_neighbor_events(peer)) | |
4121 | zlog_debug("%s Dynamic Neighbor added, group %s count %d", | |
4122 | peer->host, group->name, dncount); | |
4123 | ||
4124 | return peer; | |
4125 | } | |
4126 | ||
cc32742c | 4127 | static void peer_drop_dynamic_neighbor(struct peer *peer) |
d62a17ae | 4128 | { |
4129 | int dncount = -1; | |
cc32742c | 4130 | if (peer->group->bgp) { |
d62a17ae | 4131 | dncount = peer->group->bgp->dynamic_neighbors_count; |
4132 | if (dncount) | |
4133 | peer->group->bgp->dynamic_neighbors_count = --dncount; | |
4134 | } | |
4135 | if (bgp_debug_neighbor_events(peer)) | |
4136 | zlog_debug("%s dropped from group %s, count %d", peer->host, | |
4137 | peer->group->name, dncount); | |
4138 | } | |
4139 | ||
d62a17ae | 4140 | /* If peer is configured at least one address family return 1. */ |
3dc339cd | 4141 | bool peer_active(struct peer *peer) |
d62a17ae | 4142 | { |
4143 | if (BGP_PEER_SU_UNSPEC(peer)) | |
3dc339cd | 4144 | return false; |
d62a17ae | 4145 | if (peer->afc[AFI_IP][SAFI_UNICAST] || peer->afc[AFI_IP][SAFI_MULTICAST] |
4146 | || peer->afc[AFI_IP][SAFI_LABELED_UNICAST] | |
4147 | || peer->afc[AFI_IP][SAFI_MPLS_VPN] || peer->afc[AFI_IP][SAFI_ENCAP] | |
7c40bf39 | 4148 | || peer->afc[AFI_IP][SAFI_FLOWSPEC] |
d62a17ae | 4149 | || peer->afc[AFI_IP6][SAFI_UNICAST] |
4150 | || peer->afc[AFI_IP6][SAFI_MULTICAST] | |
4151 | || peer->afc[AFI_IP6][SAFI_LABELED_UNICAST] | |
4152 | || peer->afc[AFI_IP6][SAFI_MPLS_VPN] | |
4153 | || peer->afc[AFI_IP6][SAFI_ENCAP] | |
7c40bf39 | 4154 | || peer->afc[AFI_IP6][SAFI_FLOWSPEC] |
d62a17ae | 4155 | || peer->afc[AFI_L2VPN][SAFI_EVPN]) |
3dc339cd DA |
4156 | return true; |
4157 | return false; | |
d62a17ae | 4158 | } |
4159 | ||
4160 | /* If peer is negotiated at least one address family return 1. */ | |
3dc339cd | 4161 | bool peer_active_nego(struct peer *peer) |
d62a17ae | 4162 | { |
4163 | if (peer->afc_nego[AFI_IP][SAFI_UNICAST] | |
4164 | || peer->afc_nego[AFI_IP][SAFI_MULTICAST] | |
4165 | || peer->afc_nego[AFI_IP][SAFI_LABELED_UNICAST] | |
4166 | || peer->afc_nego[AFI_IP][SAFI_MPLS_VPN] | |
4167 | || peer->afc_nego[AFI_IP][SAFI_ENCAP] | |
7c40bf39 | 4168 | || peer->afc_nego[AFI_IP][SAFI_FLOWSPEC] |
d62a17ae | 4169 | || peer->afc_nego[AFI_IP6][SAFI_UNICAST] |
4170 | || peer->afc_nego[AFI_IP6][SAFI_MULTICAST] | |
4171 | || peer->afc_nego[AFI_IP6][SAFI_LABELED_UNICAST] | |
4172 | || peer->afc_nego[AFI_IP6][SAFI_MPLS_VPN] | |
4173 | || peer->afc_nego[AFI_IP6][SAFI_ENCAP] | |
7c40bf39 | 4174 | || peer->afc_nego[AFI_IP6][SAFI_FLOWSPEC] |
d62a17ae | 4175 | || peer->afc_nego[AFI_L2VPN][SAFI_EVPN]) |
3dc339cd DA |
4176 | return true; |
4177 | return false; | |
d62a17ae | 4178 | } |
4179 | ||
10711563 DA |
4180 | /* If peer received at least one address family MP, return true */ |
4181 | bool peer_afc_received(struct peer *peer) | |
4182 | { | |
4183 | afi_t afi; | |
4184 | safi_t safi; | |
4185 | ||
4186 | FOREACH_AFI_SAFI (afi, safi) | |
4187 | if (peer->afc_recv[afi][safi]) | |
4188 | return true; | |
4189 | ||
4190 | return false; | |
4191 | } | |
4192 | ||
4193 | /* If peer advertised at least one address family MP, return true */ | |
4194 | bool peer_afc_advertised(struct peer *peer) | |
4195 | { | |
4196 | afi_t afi; | |
4197 | safi_t safi; | |
4198 | ||
4199 | FOREACH_AFI_SAFI (afi, safi) | |
4200 | if (peer->afc_adv[afi][safi]) | |
4201 | return true; | |
4202 | ||
4203 | return false; | |
4204 | } | |
4205 | ||
dcc68b5e | 4206 | void peer_change_action(struct peer *peer, afi_t afi, safi_t safi, |
d62a17ae | 4207 | enum peer_change_type type) |
4208 | { | |
8b56739e DA |
4209 | struct peer_af *paf; |
4210 | ||
d62a17ae | 4211 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) |
4212 | return; | |
4213 | ||
feb17238 | 4214 | if (!peer_established(peer)) |
d62a17ae | 4215 | return; |
4216 | ||
4217 | if (type == peer_change_reset) { | |
4218 | /* If we're resetting session, we've to delete both peer struct | |
4219 | */ | |
4220 | if ((peer->doppelganger) | |
4221 | && (peer->doppelganger->status != Deleted) | |
4222 | && (!CHECK_FLAG(peer->doppelganger->flags, | |
4223 | PEER_FLAG_CONFIG_NODE))) | |
4224 | peer_delete(peer->doppelganger); | |
4225 | ||
4226 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4227 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4228 | } else if (type == peer_change_reset_in) { | |
4229 | if (CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_OLD_RCV) | |
4230 | || CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_NEW_RCV)) | |
9af52ccf DA |
4231 | bgp_route_refresh_send(peer, afi, safi, 0, 0, 0, |
4232 | BGP_ROUTE_REFRESH_NORMAL); | |
d62a17ae | 4233 | else { |
4234 | if ((peer->doppelganger) | |
4235 | && (peer->doppelganger->status != Deleted) | |
4236 | && (!CHECK_FLAG(peer->doppelganger->flags, | |
4237 | PEER_FLAG_CONFIG_NODE))) | |
4238 | peer_delete(peer->doppelganger); | |
4239 | ||
4240 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4241 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4242 | } | |
4243 | } else if (type == peer_change_reset_out) { | |
8b56739e DA |
4244 | paf = peer_af_find(peer, afi, safi); |
4245 | if (paf && paf->subgroup) | |
4246 | SET_FLAG(paf->subgroup->sflags, | |
4247 | SUBGRP_STATUS_FORCE_UPDATES); | |
4248 | ||
4249 | update_group_adjust_peer(paf); | |
e1a32ec1 | 4250 | bgp_announce_route(peer, afi, safi, false); |
d62a17ae | 4251 | } |
4252 | } | |
4253 | ||
4254 | struct peer_flag_action { | |
4255 | /* Peer's flag. */ | |
83194f39 | 4256 | uint64_t flag; |
d62a17ae | 4257 | |
4258 | /* This flag can be set for peer-group member. */ | |
d7c0a89a | 4259 | uint8_t not_for_member; |
d62a17ae | 4260 | |
4261 | /* Action when the flag is changed. */ | |
4262 | enum peer_change_type type; | |
d62a17ae | 4263 | }; |
4264 | ||
4265 | static const struct peer_flag_action peer_flag_action_list[] = { | |
4266 | {PEER_FLAG_PASSIVE, 0, peer_change_reset}, | |
4267 | {PEER_FLAG_SHUTDOWN, 0, peer_change_reset}, | |
8336c896 | 4268 | {PEER_FLAG_RTT_SHUTDOWN, 0, peer_change_none}, |
d62a17ae | 4269 | {PEER_FLAG_DONT_CAPABILITY, 0, peer_change_none}, |
4270 | {PEER_FLAG_OVERRIDE_CAPABILITY, 0, peer_change_none}, | |
4271 | {PEER_FLAG_STRICT_CAP_MATCH, 0, peer_change_none}, | |
4272 | {PEER_FLAG_DYNAMIC_CAPABILITY, 0, peer_change_reset}, | |
4273 | {PEER_FLAG_DISABLE_CONNECTED_CHECK, 0, peer_change_reset}, | |
4274 | {PEER_FLAG_CAPABILITY_ENHE, 0, peer_change_reset}, | |
47cbc09b | 4275 | {PEER_FLAG_ENFORCE_FIRST_AS, 0, peer_change_reset_in}, |
afad5ced | 4276 | {PEER_FLAG_IFPEER_V6ONLY, 0, peer_change_reset}, |
b90a8e13 PM |
4277 | {PEER_FLAG_ROUTEADV, 0, peer_change_none}, |
4278 | {PEER_FLAG_TIMER, 0, peer_change_none}, | |
4279 | {PEER_FLAG_TIMER_CONNECT, 0, peer_change_none}, | |
6c537a18 | 4280 | {PEER_FLAG_TIMER_DELAYOPEN, 0, peer_change_none}, |
a14810f4 | 4281 | {PEER_FLAG_PASSWORD, 0, peer_change_none}, |
1a9ffbab DA |
4282 | {PEER_FLAG_LOCAL_AS, 0, peer_change_reset}, |
4283 | {PEER_FLAG_LOCAL_AS_NO_PREPEND, 0, peer_change_reset}, | |
4284 | {PEER_FLAG_LOCAL_AS_REPLACE_AS, 0, peer_change_reset}, | |
a14810f4 | 4285 | {PEER_FLAG_UPDATE_SOURCE, 0, peer_change_none}, |
27aa23a4 | 4286 | {PEER_FLAG_DISABLE_LINK_BW_ENCODING_IEEE, 0, peer_change_none}, |
d08c0c80 | 4287 | {PEER_FLAG_EXTENDED_OPT_PARAMS, 0, peer_change_reset}, |
7dddd1f7 DA |
4288 | {PEER_FLAG_ROLE_STRICT_MODE, 0, peer_change_reset}, |
4289 | {PEER_FLAG_ROLE, 0, peer_change_reset}, | |
c41e9372 | 4290 | {PEER_FLAG_PORT, 0, peer_change_reset}, |
97a52c82 | 4291 | {PEER_FLAG_AIGP, 0, peer_change_none}, |
d62a17ae | 4292 | {0, 0, 0}}; |
4293 | ||
4294 | static const struct peer_flag_action peer_af_flag_action_list[] = { | |
4295 | {PEER_FLAG_SEND_COMMUNITY, 1, peer_change_reset_out}, | |
4296 | {PEER_FLAG_SEND_EXT_COMMUNITY, 1, peer_change_reset_out}, | |
4297 | {PEER_FLAG_SEND_LARGE_COMMUNITY, 1, peer_change_reset_out}, | |
4298 | {PEER_FLAG_NEXTHOP_SELF, 1, peer_change_reset_out}, | |
4299 | {PEER_FLAG_REFLECTOR_CLIENT, 1, peer_change_reset}, | |
4300 | {PEER_FLAG_RSERVER_CLIENT, 1, peer_change_reset}, | |
4301 | {PEER_FLAG_SOFT_RECONFIG, 0, peer_change_reset_in}, | |
4302 | {PEER_FLAG_AS_PATH_UNCHANGED, 1, peer_change_reset_out}, | |
4303 | {PEER_FLAG_NEXTHOP_UNCHANGED, 1, peer_change_reset_out}, | |
4304 | {PEER_FLAG_MED_UNCHANGED, 1, peer_change_reset_out}, | |
598ce6bd | 4305 | {PEER_FLAG_DEFAULT_ORIGINATE, 0, peer_change_none}, |
d62a17ae | 4306 | {PEER_FLAG_REMOVE_PRIVATE_AS, 1, peer_change_reset_out}, |
4307 | {PEER_FLAG_ALLOWAS_IN, 0, peer_change_reset_in}, | |
4308 | {PEER_FLAG_ALLOWAS_IN_ORIGIN, 0, peer_change_reset_in}, | |
4309 | {PEER_FLAG_ORF_PREFIX_SM, 1, peer_change_reset}, | |
4310 | {PEER_FLAG_ORF_PREFIX_RM, 1, peer_change_reset}, | |
598ce6bd PM |
4311 | {PEER_FLAG_MAX_PREFIX, 0, peer_change_none}, |
4312 | {PEER_FLAG_MAX_PREFIX_WARNING, 0, peer_change_none}, | |
9cbd06e0 | 4313 | {PEER_FLAG_MAX_PREFIX_FORCE, 0, peer_change_none}, |
80444d30 | 4314 | {PEER_FLAG_MAX_PREFIX_OUT, 0, peer_change_none}, |
d62a17ae | 4315 | {PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED, 0, peer_change_reset_out}, |
4316 | {PEER_FLAG_FORCE_NEXTHOP_SELF, 1, peer_change_reset_out}, | |
4317 | {PEER_FLAG_REMOVE_PRIVATE_AS_ALL, 1, peer_change_reset_out}, | |
4318 | {PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE, 1, peer_change_reset_out}, | |
4319 | {PEER_FLAG_AS_OVERRIDE, 1, peer_change_reset_out}, | |
4320 | {PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE, 1, peer_change_reset_out}, | |
d62a17ae | 4321 | {PEER_FLAG_WEIGHT, 0, peer_change_reset_in}, |
7c0e4312 | 4322 | {PEER_FLAG_DISABLE_ADDPATH_RX, 0, peer_change_reset}, |
01da2d26 | 4323 | {PEER_FLAG_SOO, 0, peer_change_reset}, |
46dbf9d0 | 4324 | {PEER_FLAG_ACCEPT_OWN, 0, peer_change_reset}, |
d62a17ae | 4325 | {0, 0, 0}}; |
4326 | ||
4327 | /* Proper action set. */ | |
4328 | static int peer_flag_action_set(const struct peer_flag_action *action_list, | |
4329 | int size, struct peer_flag_action *action, | |
83194f39 | 4330 | uint64_t flag) |
d62a17ae | 4331 | { |
4332 | int i; | |
4333 | int found = 0; | |
4334 | int reset_in = 0; | |
4335 | int reset_out = 0; | |
4336 | const struct peer_flag_action *match = NULL; | |
4337 | ||
4338 | /* Check peer's frag action. */ | |
4339 | for (i = 0; i < size; i++) { | |
4340 | match = &action_list[i]; | |
4341 | ||
4342 | if (match->flag == 0) | |
4343 | break; | |
4344 | ||
4345 | if (match->flag & flag) { | |
4346 | found = 1; | |
4347 | ||
4348 | if (match->type == peer_change_reset_in) | |
4349 | reset_in = 1; | |
4350 | if (match->type == peer_change_reset_out) | |
4351 | reset_out = 1; | |
4352 | if (match->type == peer_change_reset) { | |
4353 | reset_in = 1; | |
4354 | reset_out = 1; | |
4355 | } | |
4356 | if (match->not_for_member) | |
4357 | action->not_for_member = 1; | |
4358 | } | |
4359 | } | |
4360 | ||
4361 | /* Set peer clear type. */ | |
4362 | if (reset_in && reset_out) | |
4363 | action->type = peer_change_reset; | |
4364 | else if (reset_in) | |
4365 | action->type = peer_change_reset_in; | |
4366 | else if (reset_out) | |
4367 | action->type = peer_change_reset_out; | |
4368 | else | |
4369 | action->type = peer_change_none; | |
4370 | ||
4371 | return found; | |
4372 | } | |
4373 | ||
d7c0a89a | 4374 | static void peer_flag_modify_action(struct peer *peer, uint32_t flag) |
d62a17ae | 4375 | { |
4376 | if (flag == PEER_FLAG_SHUTDOWN) { | |
4377 | if (CHECK_FLAG(peer->flags, flag)) { | |
4378 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT)) | |
4379 | peer_nsf_stop(peer); | |
4380 | ||
4381 | UNSET_FLAG(peer->sflags, PEER_STATUS_PREFIX_OVERFLOW); | |
8336c896 | 4382 | |
d62a17ae | 4383 | if (peer->t_pmax_restart) { |
fa5806c3 | 4384 | THREAD_OFF(peer->t_pmax_restart); |
d62a17ae | 4385 | if (bgp_debug_neighbor_events(peer)) |
4386 | zlog_debug( | |
f70c91dc DA |
4387 | "%pBP Maximum-prefix restart timer canceled", |
4388 | peer); | |
d62a17ae | 4389 | } |
4390 | ||
d62a17ae | 4391 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
4392 | char *msg = peer->tx_shutdown_message; | |
4393 | size_t msglen; | |
9f33eea3 | 4394 | uint8_t msgbuf[BGP_ADMIN_SHUTDOWN_MSG_LEN + 1]; |
d62a17ae | 4395 | |
4396 | if (!msg && peer_group_active(peer)) | |
4397 | msg = peer->group->conf | |
4398 | ->tx_shutdown_message; | |
4399 | msglen = msg ? strlen(msg) : 0; | |
9f33eea3 DA |
4400 | if (msglen > BGP_ADMIN_SHUTDOWN_MSG_LEN) |
4401 | msglen = BGP_ADMIN_SHUTDOWN_MSG_LEN; | |
d62a17ae | 4402 | |
4403 | if (msglen) { | |
d62a17ae | 4404 | msgbuf[0] = msglen; |
4405 | memcpy(msgbuf + 1, msg, msglen); | |
4406 | ||
4407 | bgp_notify_send_with_data( | |
4408 | peer, BGP_NOTIFY_CEASE, | |
4409 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN, | |
4410 | msgbuf, msglen + 1); | |
4411 | } else | |
4412 | bgp_notify_send( | |
4413 | peer, BGP_NOTIFY_CEASE, | |
4414 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN); | |
4415 | } else | |
4416 | bgp_session_reset(peer); | |
4417 | } else { | |
4418 | peer->v_start = BGP_INIT_START_TIMER; | |
4419 | BGP_EVENT_ADD(peer, BGP_Stop); | |
4420 | } | |
4421 | } else if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
4422 | if (flag == PEER_FLAG_DYNAMIC_CAPABILITY) | |
4423 | peer->last_reset = PEER_DOWN_CAPABILITY_CHANGE; | |
4424 | else if (flag == PEER_FLAG_PASSIVE) | |
4425 | peer->last_reset = PEER_DOWN_PASSIVE_CHANGE; | |
4426 | else if (flag == PEER_FLAG_DISABLE_CONNECTED_CHECK) | |
4427 | peer->last_reset = PEER_DOWN_MULTIHOP_CHANGE; | |
4428 | ||
4429 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4430 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4431 | } else | |
4432 | bgp_session_reset(peer); | |
4433 | } | |
4434 | ||
9cf59432 | 4435 | /* Enable global administrative shutdown of all peers of BGP instance */ |
736b68f3 | 4436 | void bgp_shutdown_enable(struct bgp *bgp, const char *msg) |
9cf59432 DS |
4437 | { |
4438 | struct peer *peer; | |
4439 | struct listnode *node; | |
202a1711 DA |
4440 | /* length(1) + message(N) */ |
4441 | uint8_t data[BGP_ADMIN_SHUTDOWN_MSG_LEN + 1]; | |
9cf59432 DS |
4442 | |
4443 | /* do nothing if already shut down */ | |
4444 | if (CHECK_FLAG(bgp->flags, BGP_FLAG_SHUTDOWN)) | |
4445 | return; | |
4446 | ||
8389c83a DS |
4447 | /* informational log message */ |
4448 | zlog_info("Enabled administrative shutdown on BGP instance AS %u", | |
4449 | bgp->as); | |
e03f1f18 | 4450 | |
9cf59432 DS |
4451 | /* iterate through peers of BGP instance */ |
4452 | for (ALL_LIST_ELEMENTS_RO(bgp->peer, node, peer)) { | |
4453 | /* continue, if peer is already in administrative shutdown. */ | |
4454 | if (CHECK_FLAG(peer->flags, PEER_FLAG_SHUTDOWN)) | |
4455 | continue; | |
4456 | ||
4457 | /* send a RFC 4486 notification message if necessary */ | |
4458 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
ed284e23 DA |
4459 | if (msg) { |
4460 | size_t datalen = strlen(msg); | |
4461 | ||
4462 | if (datalen > BGP_ADMIN_SHUTDOWN_MSG_LEN) | |
4463 | datalen = BGP_ADMIN_SHUTDOWN_MSG_LEN; | |
4464 | ||
4465 | data[0] = datalen; | |
4466 | memcpy(data + 1, msg, datalen); | |
4467 | ||
736b68f3 DS |
4468 | bgp_notify_send_with_data( |
4469 | peer, BGP_NOTIFY_CEASE, | |
202a1711 DA |
4470 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN, data, |
4471 | datalen + 1); | |
ed284e23 | 4472 | } else { |
736b68f3 DS |
4473 | bgp_notify_send( |
4474 | peer, BGP_NOTIFY_CEASE, | |
4475 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN); | |
ed284e23 | 4476 | } |
9cf59432 DS |
4477 | } |
4478 | ||
4479 | /* reset start timer to initial value */ | |
4480 | peer->v_start = BGP_INIT_START_TIMER; | |
4481 | ||
4482 | /* trigger a RFC 4271 ManualStop event */ | |
4483 | BGP_EVENT_ADD(peer, BGP_Stop); | |
4484 | } | |
4485 | ||
4486 | /* set the BGP instances shutdown flag */ | |
4487 | SET_FLAG(bgp->flags, BGP_FLAG_SHUTDOWN); | |
4488 | } | |
4489 | ||
4490 | /* Disable global administrative shutdown of all peers of BGP instance */ | |
4491 | void bgp_shutdown_disable(struct bgp *bgp) | |
4492 | { | |
9cf59432 DS |
4493 | /* do nothing if not shut down. */ |
4494 | if (!CHECK_FLAG(bgp->flags, BGP_FLAG_SHUTDOWN)) | |
4495 | return; | |
4496 | ||
8389c83a DS |
4497 | /* informational log message */ |
4498 | zlog_info("Disabled administrative shutdown on BGP instance AS %u", | |
4499 | bgp->as); | |
9cf59432 DS |
4500 | |
4501 | /* clear the BGP instances shutdown flag */ | |
4502 | UNSET_FLAG(bgp->flags, BGP_FLAG_SHUTDOWN); | |
4503 | } | |
4504 | ||
d62a17ae | 4505 | /* Change specified peer flag. */ |
83194f39 | 4506 | static int peer_flag_modify(struct peer *peer, uint64_t flag, int set) |
d62a17ae | 4507 | { |
4508 | int found; | |
4509 | int size; | |
9fb964de PM |
4510 | bool invert, member_invert; |
4511 | struct peer *member; | |
d62a17ae | 4512 | struct listnode *node, *nnode; |
4513 | struct peer_flag_action action; | |
4514 | ||
4515 | memset(&action, 0, sizeof(struct peer_flag_action)); | |
0d6f7fd6 | 4516 | size = sizeof(peer_flag_action_list) / sizeof(struct peer_flag_action); |
d62a17ae | 4517 | |
9fb964de | 4518 | invert = CHECK_FLAG(peer->flags_invert, flag); |
d62a17ae | 4519 | found = peer_flag_action_set(peer_flag_action_list, size, &action, |
4520 | flag); | |
4521 | ||
9fb964de | 4522 | /* Abort if no flag action exists. */ |
d62a17ae | 4523 | if (!found) |
4524 | return BGP_ERR_INVALID_FLAG; | |
4525 | ||
9fb964de | 4526 | /* Check for flag conflict: STRICT_CAP_MATCH && OVERRIDE_CAPABILITY */ |
d62a17ae | 4527 | if (set && CHECK_FLAG(peer->flags | flag, PEER_FLAG_STRICT_CAP_MATCH) |
4528 | && CHECK_FLAG(peer->flags | flag, PEER_FLAG_OVERRIDE_CAPABILITY)) | |
4529 | return BGP_ERR_PEER_FLAG_CONFLICT; | |
4530 | ||
9fb964de | 4531 | /* Handle flag updates where desired state matches current state. */ |
d62a17ae | 4532 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
9fb964de PM |
4533 | if (set && CHECK_FLAG(peer->flags, flag)) { |
4534 | COND_FLAG(peer->flags_override, flag, !invert); | |
d62a17ae | 4535 | return 0; |
9fb964de PM |
4536 | } |
4537 | ||
4538 | if (!set && !CHECK_FLAG(peer->flags, flag)) { | |
4539 | COND_FLAG(peer->flags_override, flag, invert); | |
d62a17ae | 4540 | return 0; |
9fb964de | 4541 | } |
d62a17ae | 4542 | } |
4543 | ||
9fb964de PM |
4544 | /* Inherit from peer-group or set/unset flags accordingly. */ |
4545 | if (peer_group_active(peer) && set == invert) | |
4546 | peer_flag_inherit(peer, flag); | |
d62a17ae | 4547 | else |
9fb964de | 4548 | COND_FLAG(peer->flags, flag, set); |
d62a17ae | 4549 | |
9fb964de | 4550 | /* Check if handling a regular peer. */ |
d62a17ae | 4551 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
9fb964de PM |
4552 | /* Update flag override state accordingly. */ |
4553 | COND_FLAG(peer->flags_override, flag, set != invert); | |
4554 | ||
b3a3290e DS |
4555 | /* |
4556 | * For the extended next-hop encoding flag we need to turn RAs | |
4557 | * on if flag is being set, but only turn RAs off if the flag | |
4558 | * is being unset on this peer and if this peer is a member of a | |
4559 | * peer-group, the peer-group also doesn't have the flag set. | |
4560 | */ | |
4561 | if (flag == PEER_FLAG_CAPABILITY_ENHE) { | |
4562 | if (set) { | |
4563 | bgp_zebra_initiate_radv(peer->bgp, peer); | |
4564 | } else if (peer_group_active(peer)) { | |
28168b1b DS |
4565 | if (!CHECK_FLAG(peer->group->conf->flags, |
4566 | flag) && | |
4567 | !peer->conf_if) | |
b3a3290e DS |
4568 | bgp_zebra_terminate_radv(peer->bgp, |
4569 | peer); | |
4570 | } else | |
4571 | bgp_zebra_terminate_radv(peer->bgp, peer); | |
4572 | } | |
087a1c6c | 4573 | |
9fb964de | 4574 | /* Execute flag action on peer. */ |
d62a17ae | 4575 | if (action.type == peer_change_reset) |
4576 | peer_flag_modify_action(peer, flag); | |
4577 | ||
9fb964de | 4578 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 4579 | return 0; |
4580 | } | |
4581 | ||
9fb964de | 4582 | /* |
f75b9163 | 4583 | * Update peer-group members, unless they are explicitly overriding |
9fb964de PM |
4584 | * peer-group configuration. |
4585 | */ | |
4586 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4587 | /* Skip peers with overridden configuration. */ | |
4588 | if (CHECK_FLAG(member->flags_override, flag)) | |
4589 | continue; | |
d62a17ae | 4590 | |
527de3dc PM |
4591 | /* Check if only member without group is inverted. */ |
4592 | member_invert = | |
4593 | CHECK_FLAG(member->flags_invert, flag) && !invert; | |
d62a17ae | 4594 | |
9fb964de PM |
4595 | /* Skip peers with equivalent configuration. */ |
4596 | if (set != member_invert && CHECK_FLAG(member->flags, flag)) | |
d62a17ae | 4597 | continue; |
4598 | ||
9fb964de | 4599 | if (set == member_invert && !CHECK_FLAG(member->flags, flag)) |
d62a17ae | 4600 | continue; |
4601 | ||
9fb964de PM |
4602 | /* Update flag on peer-group member. */ |
4603 | COND_FLAG(member->flags, flag, set != member_invert); | |
d62a17ae | 4604 | |
28168b1b | 4605 | if (flag == PEER_FLAG_CAPABILITY_ENHE && !member->conf_if) |
b3a3290e DS |
4606 | set ? bgp_zebra_initiate_radv(member->bgp, member) |
4607 | : bgp_zebra_terminate_radv(member->bgp, member); | |
1ea03b90 | 4608 | |
9fb964de | 4609 | /* Execute flag action on peer-group member. */ |
d62a17ae | 4610 | if (action.type == peer_change_reset) |
9fb964de | 4611 | peer_flag_modify_action(member, flag); |
d62a17ae | 4612 | } |
9fb964de | 4613 | |
d62a17ae | 4614 | return 0; |
4615 | } | |
4616 | ||
83194f39 | 4617 | int peer_flag_set(struct peer *peer, uint64_t flag) |
d62a17ae | 4618 | { |
4619 | return peer_flag_modify(peer, flag, 1); | |
4620 | } | |
4621 | ||
83194f39 | 4622 | int peer_flag_unset(struct peer *peer, uint64_t flag) |
d62a17ae | 4623 | { |
4624 | return peer_flag_modify(peer, flag, 0); | |
4625 | } | |
4626 | ||
4627 | static int peer_af_flag_modify(struct peer *peer, afi_t afi, safi_t safi, | |
da5e1a58 | 4628 | uint64_t flag, bool set) |
d62a17ae | 4629 | { |
4630 | int found; | |
4631 | int size; | |
527de3dc | 4632 | bool invert, member_invert; |
527de3dc | 4633 | struct peer *member; |
d62a17ae | 4634 | struct listnode *node, *nnode; |
d62a17ae | 4635 | struct peer_flag_action action; |
3061acc2 | 4636 | enum bgp_peer_sort ptype; |
d62a17ae | 4637 | |
4638 | memset(&action, 0, sizeof(struct peer_flag_action)); | |
0d6f7fd6 | 4639 | size = sizeof(peer_af_flag_action_list) |
d62a17ae | 4640 | / sizeof(struct peer_flag_action); |
4641 | ||
27c05d4d | 4642 | invert = CHECK_FLAG(peer->af_flags_invert[afi][safi], flag); |
d62a17ae | 4643 | found = peer_flag_action_set(peer_af_flag_action_list, size, &action, |
4644 | flag); | |
4645 | ||
527de3dc | 4646 | /* Abort if flag action exists. */ |
d62a17ae | 4647 | if (!found) |
4648 | return BGP_ERR_INVALID_FLAG; | |
4649 | ||
469cbb0f | 4650 | ptype = peer_sort(peer); |
d62a17ae | 4651 | /* Special check for reflector client. */ |
469cbb0f | 4652 | if (flag & PEER_FLAG_REFLECTOR_CLIENT && ptype != BGP_PEER_IBGP) |
d62a17ae | 4653 | return BGP_ERR_NOT_INTERNAL_PEER; |
4654 | ||
70cd87ca MK |
4655 | /* Do not remove reflector client when ORR is configured on this peer */ |
4656 | if (flag & PEER_FLAG_REFLECTOR_CLIENT && !set && | |
4657 | peer_orr_rrclient_check(peer, afi, safi)) | |
4658 | return BGP_ERR_PEER_ORR_CONFIGURED; | |
4659 | ||
d62a17ae | 4660 | /* Special check for remove-private-AS. */ |
469cbb0f | 4661 | if (flag & PEER_FLAG_REMOVE_PRIVATE_AS && ptype == BGP_PEER_IBGP) |
d62a17ae | 4662 | return BGP_ERR_REMOVE_PRIVATE_AS; |
4663 | ||
4664 | /* as-override is not allowed for IBGP peers */ | |
469cbb0f | 4665 | if (flag & PEER_FLAG_AS_OVERRIDE && ptype == BGP_PEER_IBGP) |
d62a17ae | 4666 | return BGP_ERR_AS_OVERRIDE; |
4667 | ||
527de3dc | 4668 | /* Handle flag updates where desired state matches current state. */ |
d62a17ae | 4669 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
598ce6bd | 4670 | if (set && CHECK_FLAG(peer->af_flags[afi][safi], flag)) { |
527de3dc PM |
4671 | COND_FLAG(peer->af_flags_override[afi][safi], flag, |
4672 | !invert); | |
d62a17ae | 4673 | return 0; |
598ce6bd PM |
4674 | } |
4675 | ||
4676 | if (!set && !CHECK_FLAG(peer->af_flags[afi][safi], flag)) { | |
527de3dc PM |
4677 | COND_FLAG(peer->af_flags_override[afi][safi], flag, |
4678 | invert); | |
d62a17ae | 4679 | return 0; |
598ce6bd | 4680 | } |
d62a17ae | 4681 | } |
4682 | ||
ace295a9 MK |
4683 | /* |
4684 | * For EVPN we implicitly set the NEXTHOP_UNCHANGED flag, | |
4685 | * if we are setting/unsetting flags which conflict with this flag | |
4686 | * handle accordingly | |
4687 | */ | |
4688 | if (afi == AFI_L2VPN && safi == SAFI_EVPN) { | |
4689 | if (set) { | |
4690 | ||
3518f352 DS |
4691 | /* |
4692 | * if we are setting NEXTHOP_SELF, we need to unset the | |
4693 | * NEXTHOP_UNCHANGED flag | |
4694 | */ | |
ace295a9 MK |
4695 | if (CHECK_FLAG(flag, PEER_FLAG_NEXTHOP_SELF) || |
4696 | CHECK_FLAG(flag, PEER_FLAG_FORCE_NEXTHOP_SELF)) | |
4697 | UNSET_FLAG(peer->af_flags[afi][safi], | |
4698 | PEER_FLAG_NEXTHOP_UNCHANGED); | |
4699 | } else { | |
4700 | ||
3518f352 DS |
4701 | /* |
4702 | * if we are unsetting NEXTHOP_SELF, we need to set the | |
ace295a9 MK |
4703 | * NEXTHOP_UNCHANGED flag to reset the defaults for EVPN |
4704 | */ | |
4705 | if (CHECK_FLAG(flag, PEER_FLAG_NEXTHOP_SELF) || | |
4706 | CHECK_FLAG(flag, PEER_FLAG_FORCE_NEXTHOP_SELF)) | |
4707 | SET_FLAG(peer->af_flags[afi][safi], | |
4708 | PEER_FLAG_NEXTHOP_UNCHANGED); | |
4709 | } | |
4710 | } | |
4711 | ||
99819027 DS |
4712 | /* |
4713 | * If the peer is a route server client let's not | |
4714 | * muck with the nexthop on the way out the door | |
4715 | */ | |
4716 | if (flag & PEER_FLAG_RSERVER_CLIENT) { | |
4717 | if (set) | |
4718 | SET_FLAG(peer->af_flags[afi][safi], | |
4719 | PEER_FLAG_NEXTHOP_UNCHANGED); | |
4720 | else | |
4721 | UNSET_FLAG(peer->af_flags[afi][safi], | |
4722 | PEER_FLAG_NEXTHOP_UNCHANGED); | |
4723 | } | |
4724 | ||
527de3dc PM |
4725 | /* Inherit from peer-group or set/unset flags accordingly. */ |
4726 | if (peer_group_active(peer) && set == invert) | |
4727 | peer_af_flag_inherit(peer, afi, safi, flag); | |
4728 | else | |
4729 | COND_FLAG(peer->af_flags[afi][safi], flag, set); | |
d62a17ae | 4730 | |
4731 | /* Execute action when peer is established. */ | |
4732 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP) | |
feb17238 | 4733 | && peer_established(peer)) { |
d62a17ae | 4734 | if (!set && flag == PEER_FLAG_SOFT_RECONFIG) |
4735 | bgp_clear_adj_in(peer, afi, safi); | |
4736 | else { | |
4737 | if (flag == PEER_FLAG_REFLECTOR_CLIENT) | |
4738 | peer->last_reset = PEER_DOWN_RR_CLIENT_CHANGE; | |
4739 | else if (flag == PEER_FLAG_RSERVER_CLIENT) | |
4740 | peer->last_reset = PEER_DOWN_RS_CLIENT_CHANGE; | |
4741 | else if (flag == PEER_FLAG_ORF_PREFIX_SM) | |
4742 | peer->last_reset = PEER_DOWN_CAPABILITY_CHANGE; | |
4743 | else if (flag == PEER_FLAG_ORF_PREFIX_RM) | |
4744 | peer->last_reset = PEER_DOWN_CAPABILITY_CHANGE; | |
4745 | ||
4746 | peer_change_action(peer, afi, safi, action.type); | |
4747 | } | |
4748 | } | |
4749 | ||
527de3dc PM |
4750 | /* Check if handling a regular peer. */ |
4751 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4752 | COND_FLAG(peer->af_flags_override[afi][safi], flag, | |
4753 | set != invert); | |
4754 | } else { | |
4755 | /* | |
f75b9163 | 4756 | * Update peer-group members, unless they are explicitly |
527de3dc PM |
4757 | * overriding peer-group configuration. |
4758 | */ | |
4759 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, | |
4760 | member)) { | |
4761 | /* Skip peers with overridden configuration. */ | |
4762 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
598ce6bd PM |
4763 | flag)) |
4764 | continue; | |
4765 | ||
527de3dc PM |
4766 | /* Check if only member without group is inverted. */ |
4767 | member_invert = | |
4768 | CHECK_FLAG(member->af_flags_invert[afi][safi], | |
4769 | flag) | |
4770 | && !invert; | |
4771 | ||
4772 | /* Skip peers with equivalent configuration. */ | |
4773 | if (set != member_invert | |
4774 | && CHECK_FLAG(member->af_flags[afi][safi], flag)) | |
d62a17ae | 4775 | continue; |
4776 | ||
527de3dc PM |
4777 | if (set == member_invert |
4778 | && !CHECK_FLAG(member->af_flags[afi][safi], flag)) | |
d62a17ae | 4779 | continue; |
4780 | ||
527de3dc PM |
4781 | /* Update flag on peer-group member. */ |
4782 | COND_FLAG(member->af_flags[afi][safi], flag, | |
4783 | set != member_invert); | |
d62a17ae | 4784 | |
527de3dc | 4785 | /* Execute flag action on peer-group member. */ |
feb17238 | 4786 | if (peer_established(member)) { |
d62a17ae | 4787 | if (!set && flag == PEER_FLAG_SOFT_RECONFIG) |
527de3dc | 4788 | bgp_clear_adj_in(member, afi, safi); |
d62a17ae | 4789 | else { |
4790 | if (flag == PEER_FLAG_REFLECTOR_CLIENT) | |
527de3dc | 4791 | member->last_reset = |
d62a17ae | 4792 | PEER_DOWN_RR_CLIENT_CHANGE; |
4793 | else if (flag | |
4794 | == PEER_FLAG_RSERVER_CLIENT) | |
527de3dc | 4795 | member->last_reset = |
d62a17ae | 4796 | PEER_DOWN_RS_CLIENT_CHANGE; |
4797 | else if (flag | |
4798 | == PEER_FLAG_ORF_PREFIX_SM) | |
527de3dc | 4799 | member->last_reset = |
d62a17ae | 4800 | PEER_DOWN_CAPABILITY_CHANGE; |
4801 | else if (flag | |
4802 | == PEER_FLAG_ORF_PREFIX_RM) | |
527de3dc | 4803 | member->last_reset = |
d62a17ae | 4804 | PEER_DOWN_CAPABILITY_CHANGE; |
4805 | ||
527de3dc | 4806 | peer_change_action(member, afi, safi, |
d62a17ae | 4807 | action.type); |
4808 | } | |
4809 | } | |
4810 | } | |
4811 | } | |
4812 | ||
d62a17ae | 4813 | return 0; |
4814 | } | |
4815 | ||
da5e1a58 | 4816 | int peer_af_flag_set(struct peer *peer, afi_t afi, safi_t safi, uint64_t flag) |
d62a17ae | 4817 | { |
4818 | return peer_af_flag_modify(peer, afi, safi, flag, 1); | |
4819 | } | |
4820 | ||
da5e1a58 | 4821 | int peer_af_flag_unset(struct peer *peer, afi_t afi, safi_t safi, uint64_t flag) |
d62a17ae | 4822 | { |
4823 | return peer_af_flag_modify(peer, afi, safi, flag, 0); | |
4824 | } | |
4825 | ||
4826 | ||
3dc339cd | 4827 | void peer_tx_shutdown_message_set(struct peer *peer, const char *msg) |
d62a17ae | 4828 | { |
4829 | XFREE(MTYPE_PEER_TX_SHUTDOWN_MSG, peer->tx_shutdown_message); | |
4830 | peer->tx_shutdown_message = | |
4831 | msg ? XSTRDUP(MTYPE_PEER_TX_SHUTDOWN_MSG, msg) : NULL; | |
d62a17ae | 4832 | } |
4833 | ||
3dc339cd | 4834 | void peer_tx_shutdown_message_unset(struct peer *peer) |
d62a17ae | 4835 | { |
4836 | XFREE(MTYPE_PEER_TX_SHUTDOWN_MSG, peer->tx_shutdown_message); | |
d62a17ae | 4837 | } |
4838 | ||
4839 | ||
4840 | /* EBGP multihop configuration. */ | |
4841 | int peer_ebgp_multihop_set(struct peer *peer, int ttl) | |
4842 | { | |
4843 | struct peer_group *group; | |
4844 | struct listnode *node, *nnode; | |
4845 | struct peer *peer1; | |
4846 | ||
4847 | if (peer->sort == BGP_PEER_IBGP || peer->conf_if) | |
4848 | return 0; | |
8ffeaddb EDP |
4849 | |
4850 | /* is there anything to do? */ | |
4851 | if (peer->ttl == ttl) | |
4852 | return 0; | |
d62a17ae | 4853 | |
4854 | /* see comment in peer_ttl_security_hops_set() */ | |
4855 | if (ttl != MAXTTL) { | |
4856 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4857 | group = peer->group; | |
e2521429 | 4858 | if (group->conf->gtsm_hops != BGP_GTSM_HOPS_DISABLED) |
d62a17ae | 4859 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; |
4860 | ||
4861 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, | |
4862 | peer1)) { | |
4863 | if (peer1->sort == BGP_PEER_IBGP) | |
4864 | continue; | |
4865 | ||
e2521429 | 4866 | if (peer1->gtsm_hops != BGP_GTSM_HOPS_DISABLED) |
d62a17ae | 4867 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; |
4868 | } | |
4869 | } else { | |
e2521429 | 4870 | if (peer->gtsm_hops != BGP_GTSM_HOPS_DISABLED) |
d62a17ae | 4871 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; |
4872 | } | |
4873 | } | |
4874 | ||
4875 | peer->ttl = ttl; | |
4876 | ||
4877 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
3557ed3d | 4878 | if (peer->sort != BGP_PEER_IBGP) { |
d62a17ae | 4879 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
4880 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4881 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4882 | else | |
4883 | bgp_session_reset(peer); | |
4ba37eb6 RZ |
4884 | |
4885 | /* Reconfigure BFD peer with new TTL. */ | |
4886 | if (peer->bfd_config) | |
4887 | bgp_peer_bfd_update_source(peer); | |
d62a17ae | 4888 | } |
4889 | } else { | |
4890 | group = peer->group; | |
4891 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
4892 | if (peer->sort == BGP_PEER_IBGP) | |
4893 | continue; | |
4894 | ||
4895 | peer->ttl = group->conf->ttl; | |
4896 | ||
4897 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
4898 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4899 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4900 | else | |
4901 | bgp_session_reset(peer); | |
4ba37eb6 RZ |
4902 | |
4903 | /* Reconfigure BFD peer with new TTL. */ | |
4904 | if (peer->bfd_config) | |
4905 | bgp_peer_bfd_update_source(peer); | |
d62a17ae | 4906 | } |
4907 | } | |
4908 | return 0; | |
4909 | } | |
4910 | ||
4911 | int peer_ebgp_multihop_unset(struct peer *peer) | |
4912 | { | |
4913 | struct peer_group *group; | |
4914 | struct listnode *node, *nnode; | |
6e26b2e2 | 4915 | int ttl; |
d62a17ae | 4916 | |
4917 | if (peer->sort == BGP_PEER_IBGP) | |
4918 | return 0; | |
4919 | ||
e2521429 | 4920 | if (peer->gtsm_hops != BGP_GTSM_HOPS_DISABLED && peer->ttl != MAXTTL) |
d62a17ae | 4921 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; |
4922 | ||
4923 | if (peer_group_active(peer)) | |
6e26b2e2 | 4924 | ttl = peer->group->conf->ttl; |
d62a17ae | 4925 | else |
6e26b2e2 DS |
4926 | ttl = BGP_DEFAULT_TTL; |
4927 | ||
4928 | if (ttl == peer->ttl) | |
4929 | return 0; | |
4930 | ||
4931 | peer->ttl = ttl; | |
d62a17ae | 4932 | |
4933 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4934 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
4935 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4936 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4937 | else | |
4938 | bgp_session_reset(peer); | |
4ba37eb6 RZ |
4939 | |
4940 | /* Reconfigure BFD peer with new TTL. */ | |
4941 | if (peer->bfd_config) | |
4942 | bgp_peer_bfd_update_source(peer); | |
d62a17ae | 4943 | } else { |
4944 | group = peer->group; | |
4945 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
4946 | if (peer->sort == BGP_PEER_IBGP) | |
4947 | continue; | |
4948 | ||
a0903cd2 | 4949 | peer->ttl = BGP_DEFAULT_TTL; |
d62a17ae | 4950 | |
4951 | if (peer->fd >= 0) { | |
4952 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
4953 | bgp_notify_send( | |
4954 | peer, BGP_NOTIFY_CEASE, | |
4955 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4956 | else | |
4957 | bgp_session_reset(peer); | |
4958 | } | |
4ba37eb6 RZ |
4959 | |
4960 | /* Reconfigure BFD peer with new TTL. */ | |
4961 | if (peer->bfd_config) | |
4962 | bgp_peer_bfd_update_source(peer); | |
d62a17ae | 4963 | } |
4964 | } | |
4965 | return 0; | |
4966 | } | |
4967 | ||
d864dd9e | 4968 | /* Set Open Policy Role and check its correctness */ |
8f2d6021 | 4969 | int peer_role_set(struct peer *peer, uint8_t role, bool strict_mode) |
d864dd9e | 4970 | { |
7dddd1f7 DA |
4971 | struct peer *member; |
4972 | struct listnode *node, *nnode; | |
4973 | ||
4974 | peer_flag_set(peer, PEER_FLAG_ROLE); | |
4975 | ||
4976 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4977 | if (peer->sort != BGP_PEER_EBGP) | |
4978 | return BGP_ERR_INVALID_INTERNAL_ROLE; | |
4979 | ||
4980 | if (peer->local_role == role) { | |
4981 | if (CHECK_FLAG(peer->flags, | |
4982 | PEER_FLAG_ROLE_STRICT_MODE) && | |
4983 | !strict_mode) | |
4984 | /* TODO: Is session restart needed if it was | |
4985 | * down? | |
4986 | */ | |
4987 | UNSET_FLAG(peer->flags, | |
4988 | PEER_FLAG_ROLE_STRICT_MODE); | |
4989 | if (!CHECK_FLAG(peer->flags, | |
4990 | PEER_FLAG_ROLE_STRICT_MODE) && | |
4991 | strict_mode) { | |
4992 | SET_FLAG(peer->flags, | |
4993 | PEER_FLAG_ROLE_STRICT_MODE); | |
4994 | /* Restart session to throw Role Mismatch | |
4995 | * Notification | |
4996 | */ | |
4997 | if (peer->remote_role == ROLE_UNDEFINED) | |
4998 | bgp_session_reset(peer); | |
4999 | } | |
5000 | } else { | |
5001 | peer->local_role = role; | |
5002 | if (strict_mode) | |
5003 | SET_FLAG(peer->flags, | |
5004 | PEER_FLAG_ROLE_STRICT_MODE); | |
5005 | else | |
5006 | UNSET_FLAG(peer->flags, | |
5007 | PEER_FLAG_ROLE_STRICT_MODE); | |
5008 | bgp_session_reset(peer); | |
d864dd9e | 5009 | } |
7dddd1f7 DA |
5010 | |
5011 | return CMD_SUCCESS; | |
d864dd9e | 5012 | } |
7dddd1f7 DA |
5013 | |
5014 | peer->local_role = role; | |
5015 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5016 | if (member->sort != BGP_PEER_EBGP) | |
5017 | return BGP_ERR_INVALID_INTERNAL_ROLE; | |
5018 | ||
5019 | if (member->local_role == role) { | |
5020 | if (CHECK_FLAG(member->flags, | |
5021 | PEER_FLAG_ROLE_STRICT_MODE) && | |
5022 | !strict_mode) | |
5023 | /* TODO: Is session restart needed if it was | |
5024 | * down? | |
5025 | */ | |
5026 | UNSET_FLAG(member->flags, | |
5027 | PEER_FLAG_ROLE_STRICT_MODE); | |
5028 | if (!CHECK_FLAG(member->flags, | |
5029 | PEER_FLAG_ROLE_STRICT_MODE) && | |
5030 | strict_mode) { | |
5031 | SET_FLAG(peer->flags, | |
5032 | PEER_FLAG_ROLE_STRICT_MODE); | |
5033 | SET_FLAG(member->flags, | |
5034 | PEER_FLAG_ROLE_STRICT_MODE); | |
5035 | /* Restart session to throw Role Mismatch | |
5036 | * Notification | |
5037 | */ | |
5038 | if (member->remote_role == ROLE_UNDEFINED) | |
5039 | bgp_session_reset(member); | |
5040 | } | |
5041 | } else { | |
5042 | member->local_role = role; | |
5043 | ||
5044 | if (strict_mode) { | |
5045 | SET_FLAG(peer->flags, | |
5046 | PEER_FLAG_ROLE_STRICT_MODE); | |
5047 | SET_FLAG(member->flags, | |
5048 | PEER_FLAG_ROLE_STRICT_MODE); | |
5049 | } else { | |
5050 | UNSET_FLAG(member->flags, | |
5051 | PEER_FLAG_ROLE_STRICT_MODE); | |
5052 | } | |
5053 | bgp_session_reset(member); | |
5054 | } | |
5055 | } | |
5056 | ||
5057 | return CMD_SUCCESS; | |
d864dd9e EB |
5058 | } |
5059 | ||
5060 | int peer_role_unset(struct peer *peer) | |
5061 | { | |
7dddd1f7 DA |
5062 | struct peer *member; |
5063 | struct listnode *node, *nnode; | |
5064 | ||
5065 | peer_flag_unset(peer, PEER_FLAG_ROLE); | |
5066 | ||
5067 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
5068 | return peer_role_set(peer, ROLE_UNDEFINED, 0); | |
5069 | ||
5070 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) | |
5071 | peer_role_set(member, ROLE_UNDEFINED, 0); | |
5072 | ||
5073 | return CMD_SUCCESS; | |
d864dd9e EB |
5074 | } |
5075 | ||
d62a17ae | 5076 | /* Neighbor description. */ |
3dc339cd | 5077 | void peer_description_set(struct peer *peer, const char *desc) |
d62a17ae | 5078 | { |
0a22ddfb | 5079 | XFREE(MTYPE_PEER_DESC, peer->desc); |
d62a17ae | 5080 | |
5081 | peer->desc = XSTRDUP(MTYPE_PEER_DESC, desc); | |
d62a17ae | 5082 | } |
5083 | ||
3dc339cd | 5084 | void peer_description_unset(struct peer *peer) |
d62a17ae | 5085 | { |
0a22ddfb | 5086 | XFREE(MTYPE_PEER_DESC, peer->desc); |
d62a17ae | 5087 | } |
5088 | ||
5089 | /* Neighbor update-source. */ | |
5090 | int peer_update_source_if_set(struct peer *peer, const char *ifname) | |
5091 | { | |
a14810f4 | 5092 | struct peer *member; |
d62a17ae | 5093 | struct listnode *node, *nnode; |
5094 | ||
a14810f4 PM |
5095 | /* Set flag and configuration on peer. */ |
5096 | peer_flag_set(peer, PEER_FLAG_UPDATE_SOURCE); | |
d62a17ae | 5097 | if (peer->update_if) { |
a14810f4 | 5098 | if (strcmp(peer->update_if, ifname) == 0) |
d62a17ae | 5099 | return 0; |
d62a17ae | 5100 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); |
d62a17ae | 5101 | } |
d62a17ae | 5102 | peer->update_if = XSTRDUP(MTYPE_PEER_UPDATE_SOURCE, ifname); |
a14810f4 PM |
5103 | sockunion_free(peer->update_source); |
5104 | peer->update_source = NULL; | |
d62a17ae | 5105 | |
a14810f4 | 5106 | /* Check if handling a regular peer. */ |
d62a17ae | 5107 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 5108 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 5109 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
5110 | peer->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
5111 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5112 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5113 | } else | |
5114 | bgp_session_reset(peer); | |
a14810f4 | 5115 | |
7196f56e RZ |
5116 | /* Apply new source configuration to BFD session. */ |
5117 | if (peer->bfd_config) | |
5118 | bgp_peer_bfd_update_source(peer); | |
5119 | ||
a14810f4 | 5120 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 5121 | return 0; |
5122 | } | |
5123 | ||
a14810f4 PM |
5124 | /* |
5125 | * Set flag and configuration on all peer-group members, unless they are | |
f75b9163 | 5126 | * explicitly overriding peer-group configuration. |
a14810f4 PM |
5127 | */ |
5128 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5129 | /* Skip peers with overridden configuration. */ | |
5130 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_UPDATE_SOURCE)) | |
5131 | continue; | |
d62a17ae | 5132 | |
a14810f4 PM |
5133 | /* Skip peers with the same configuration. */ |
5134 | if (member->update_if) { | |
5135 | if (strcmp(member->update_if, ifname) == 0) | |
5136 | continue; | |
5137 | XFREE(MTYPE_PEER_UPDATE_SOURCE, member->update_if); | |
d62a17ae | 5138 | } |
5139 | ||
a14810f4 PM |
5140 | /* Set flag and configuration on peer-group member. */ |
5141 | SET_FLAG(member->flags, PEER_FLAG_UPDATE_SOURCE); | |
5142 | member->update_if = XSTRDUP(MTYPE_PEER_UPDATE_SOURCE, ifname); | |
5143 | sockunion_free(member->update_source); | |
5144 | member->update_source = NULL; | |
5145 | ||
5146 | /* Send notification or reset peer depending on state. */ | |
5147 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) { | |
5148 | member->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
5149 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 5150 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
5151 | } else | |
a14810f4 | 5152 | bgp_session_reset(member); |
7196f56e RZ |
5153 | |
5154 | /* Apply new source configuration to BFD session. */ | |
5155 | if (member->bfd_config) | |
5156 | bgp_peer_bfd_update_source(member); | |
d62a17ae | 5157 | } |
a14810f4 | 5158 | |
d62a17ae | 5159 | return 0; |
5160 | } | |
5161 | ||
0b1fb52c | 5162 | void peer_update_source_addr_set(struct peer *peer, const union sockunion *su) |
d62a17ae | 5163 | { |
a14810f4 | 5164 | struct peer *member; |
d62a17ae | 5165 | struct listnode *node, *nnode; |
5166 | ||
a14810f4 PM |
5167 | /* Set flag and configuration on peer. */ |
5168 | peer_flag_set(peer, PEER_FLAG_UPDATE_SOURCE); | |
d62a17ae | 5169 | if (peer->update_source) { |
a14810f4 | 5170 | if (sockunion_cmp(peer->update_source, su) == 0) |
0b1fb52c | 5171 | return; |
d62a17ae | 5172 | sockunion_free(peer->update_source); |
d62a17ae | 5173 | } |
d62a17ae | 5174 | peer->update_source = sockunion_dup(su); |
a14810f4 | 5175 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); |
d62a17ae | 5176 | |
a14810f4 | 5177 | /* Check if handling a regular peer. */ |
d62a17ae | 5178 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 5179 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 5180 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
5181 | peer->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
5182 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5183 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5184 | } else | |
5185 | bgp_session_reset(peer); | |
a14810f4 | 5186 | |
7196f56e RZ |
5187 | /* Apply new source configuration to BFD session. */ |
5188 | if (peer->bfd_config) | |
5189 | bgp_peer_bfd_update_source(peer); | |
5190 | ||
a14810f4 | 5191 | /* Skip peer-group mechanics for regular peers. */ |
0b1fb52c | 5192 | return; |
d62a17ae | 5193 | } |
5194 | ||
a14810f4 PM |
5195 | /* |
5196 | * Set flag and configuration on all peer-group members, unless they are | |
f75b9163 | 5197 | * explicitly overriding peer-group configuration. |
a14810f4 PM |
5198 | */ |
5199 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5200 | /* Skip peers with overridden configuration. */ | |
5201 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_UPDATE_SOURCE)) | |
5202 | continue; | |
d62a17ae | 5203 | |
a14810f4 PM |
5204 | /* Skip peers with the same configuration. */ |
5205 | if (member->update_source) { | |
5206 | if (sockunion_cmp(member->update_source, su) == 0) | |
5207 | continue; | |
5208 | sockunion_free(member->update_source); | |
d62a17ae | 5209 | } |
5210 | ||
a14810f4 PM |
5211 | /* Set flag and configuration on peer-group member. */ |
5212 | SET_FLAG(member->flags, PEER_FLAG_UPDATE_SOURCE); | |
5213 | member->update_source = sockunion_dup(su); | |
5214 | XFREE(MTYPE_PEER_UPDATE_SOURCE, member->update_if); | |
5215 | ||
5216 | /* Send notification or reset peer depending on state. */ | |
5217 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) { | |
5218 | member->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
5219 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 5220 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
5221 | } else | |
a14810f4 | 5222 | bgp_session_reset(member); |
7196f56e RZ |
5223 | |
5224 | /* Apply new source configuration to BFD session. */ | |
5225 | if (member->bfd_config) | |
5226 | bgp_peer_bfd_update_source(member); | |
d62a17ae | 5227 | } |
d62a17ae | 5228 | } |
5229 | ||
0b1fb52c | 5230 | void peer_update_source_unset(struct peer *peer) |
d62a17ae | 5231 | { |
a14810f4 | 5232 | struct peer *member; |
d62a17ae | 5233 | struct listnode *node, *nnode; |
5234 | ||
a14810f4 | 5235 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_UPDATE_SOURCE)) |
0b1fb52c | 5236 | return; |
d62a17ae | 5237 | |
a14810f4 PM |
5238 | /* Inherit configuration from peer-group if peer is member. */ |
5239 | if (peer_group_active(peer)) { | |
5240 | peer_flag_inherit(peer, PEER_FLAG_UPDATE_SOURCE); | |
5241 | PEER_SU_ATTR_INHERIT(peer, peer->group, update_source); | |
5242 | PEER_STR_ATTR_INHERIT(peer, peer->group, update_if, | |
5243 | MTYPE_PEER_UPDATE_SOURCE); | |
5244 | } else { | |
5245 | /* Otherwise remove flag and configuration from peer. */ | |
5246 | peer_flag_unset(peer, PEER_FLAG_UPDATE_SOURCE); | |
d62a17ae | 5247 | sockunion_free(peer->update_source); |
5248 | peer->update_source = NULL; | |
d62a17ae | 5249 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); |
d62a17ae | 5250 | } |
5251 | ||
a14810f4 | 5252 | /* Check if handling a regular peer. */ |
d62a17ae | 5253 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 5254 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 5255 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
5256 | peer->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
5257 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5258 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5259 | } else | |
5260 | bgp_session_reset(peer); | |
a14810f4 | 5261 | |
7196f56e RZ |
5262 | /* Apply new source configuration to BFD session. */ |
5263 | if (peer->bfd_config) | |
5264 | bgp_peer_bfd_update_source(peer); | |
5265 | ||
a14810f4 | 5266 | /* Skip peer-group mechanics for regular peers. */ |
0b1fb52c | 5267 | return; |
d62a17ae | 5268 | } |
5269 | ||
a14810f4 PM |
5270 | /* |
5271 | * Set flag and configuration on all peer-group members, unless they are | |
f75b9163 | 5272 | * explicitly overriding peer-group configuration. |
a14810f4 PM |
5273 | */ |
5274 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5275 | /* Skip peers with overridden configuration. */ | |
5276 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_UPDATE_SOURCE)) | |
d62a17ae | 5277 | continue; |
5278 | ||
a14810f4 PM |
5279 | /* Skip peers with the same configuration. */ |
5280 | if (!CHECK_FLAG(member->flags, PEER_FLAG_UPDATE_SOURCE) | |
5281 | && !member->update_source && !member->update_if) | |
5282 | continue; | |
d62a17ae | 5283 | |
a14810f4 PM |
5284 | /* Remove flag and configuration on peer-group member. */ |
5285 | UNSET_FLAG(member->flags, PEER_FLAG_UPDATE_SOURCE); | |
5286 | sockunion_free(member->update_source); | |
5287 | member->update_source = NULL; | |
5288 | XFREE(MTYPE_PEER_UPDATE_SOURCE, member->update_if); | |
5289 | ||
5290 | /* Send notification or reset peer depending on state. */ | |
5291 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) { | |
5292 | member->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
5293 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 5294 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
5295 | } else | |
a14810f4 | 5296 | bgp_session_reset(member); |
7196f56e RZ |
5297 | |
5298 | /* Apply new source configuration to BFD session. */ | |
5299 | if (member->bfd_config) | |
5300 | bgp_peer_bfd_update_source(member); | |
d62a17ae | 5301 | } |
d62a17ae | 5302 | } |
5303 | ||
5304 | int peer_default_originate_set(struct peer *peer, afi_t afi, safi_t safi, | |
1de27621 | 5305 | const char *rmap, struct route_map *route_map) |
d62a17ae | 5306 | { |
598ce6bd | 5307 | struct peer *member; |
d62a17ae | 5308 | struct listnode *node, *nnode; |
42427e39 | 5309 | struct update_subgroup *subgrp; |
d62a17ae | 5310 | |
598ce6bd PM |
5311 | /* Set flag and configuration on peer. */ |
5312 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_DEFAULT_ORIGINATE); | |
42427e39 IS |
5313 | |
5314 | subgrp = peer_subgroup(peer, afi, safi); | |
5315 | ||
598ce6bd PM |
5316 | if (rmap) { |
5317 | if (!peer->default_rmap[afi][safi].name | |
5318 | || strcmp(rmap, peer->default_rmap[afi][safi].name) != 0) { | |
d62a17ae | 5319 | if (peer->default_rmap[afi][safi].name) |
5320 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
5321 | peer->default_rmap[afi][safi].name); | |
598ce6bd | 5322 | |
42427e39 IS |
5323 | /* |
5324 | * When there is a change in route-map policy, | |
5325 | * this flow gets triggered. Since, the default | |
5326 | * route is already originated, the flag is set. | |
5327 | * The flag should be unset here, | |
5328 | * to trigger the flow of sending update message. | |
5329 | */ | |
5330 | if (subgrp) | |
5331 | UNSET_FLAG(subgrp->sflags, | |
5332 | SUBGRP_STATUS_DEFAULT_ORIGINATE); | |
5333 | ||
b4897fa5 | 5334 | route_map_counter_decrement(peer->default_rmap[afi][safi].map); |
d62a17ae | 5335 | peer->default_rmap[afi][safi].name = |
5336 | XSTRDUP(MTYPE_ROUTE_MAP_NAME, rmap); | |
1de27621 | 5337 | peer->default_rmap[afi][safi].map = route_map; |
b4897fa5 | 5338 | route_map_counter_increment(route_map); |
d62a17ae | 5339 | } |
598ce6bd PM |
5340 | } else if (!rmap) { |
5341 | if (peer->default_rmap[afi][safi].name) | |
5342 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
5343 | peer->default_rmap[afi][safi].name); | |
5344 | ||
42427e39 IS |
5345 | /* |
5346 | * This is triggered in case of route-map deletion. | |
5347 | * The flag needs to be unset, to trigger the flow | |
5348 | * of sending an update message. | |
5349 | */ | |
5350 | if (subgrp) | |
5351 | UNSET_FLAG(subgrp->sflags, | |
5352 | SUBGRP_STATUS_DEFAULT_ORIGINATE); | |
5353 | ||
b4897fa5 | 5354 | route_map_counter_decrement(peer->default_rmap[afi][safi].map); |
598ce6bd PM |
5355 | peer->default_rmap[afi][safi].name = NULL; |
5356 | peer->default_rmap[afi][safi].map = NULL; | |
d62a17ae | 5357 | } |
5358 | ||
598ce6bd | 5359 | /* Check if handling a regular peer. */ |
d62a17ae | 5360 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
598ce6bd | 5361 | /* Update peer route announcements. */ |
feb17238 | 5362 | if (peer_established(peer) && peer->afc_nego[afi][safi]) { |
d62a17ae | 5363 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); |
5364 | bgp_default_originate(peer, afi, safi, 0); | |
e1a32ec1 | 5365 | bgp_announce_route(peer, afi, safi, false); |
d62a17ae | 5366 | } |
598ce6bd PM |
5367 | |
5368 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5369 | return 0; |
5370 | } | |
5371 | ||
598ce6bd PM |
5372 | /* |
5373 | * Set flag and configuration on all peer-group members, unless they are | |
f75b9163 | 5374 | * explicitly overriding peer-group configuration. |
598ce6bd PM |
5375 | */ |
5376 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5377 | /* Skip peers with overridden configuration. */ | |
5378 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
5379 | PEER_FLAG_DEFAULT_ORIGINATE)) | |
5380 | continue; | |
d62a17ae | 5381 | |
598ce6bd PM |
5382 | /* Set flag and configuration on peer-group member. */ |
5383 | SET_FLAG(member->af_flags[afi][safi], | |
5384 | PEER_FLAG_DEFAULT_ORIGINATE); | |
d62a17ae | 5385 | if (rmap) { |
598ce6bd | 5386 | if (member->default_rmap[afi][safi].name) |
d62a17ae | 5387 | XFREE(MTYPE_ROUTE_MAP_NAME, |
598ce6bd | 5388 | member->default_rmap[afi][safi].name); |
b4897fa5 | 5389 | route_map_counter_decrement( |
5390 | member->default_rmap[afi][safi].map); | |
598ce6bd | 5391 | member->default_rmap[afi][safi].name = |
d62a17ae | 5392 | XSTRDUP(MTYPE_ROUTE_MAP_NAME, rmap); |
1de27621 | 5393 | member->default_rmap[afi][safi].map = route_map; |
b4897fa5 | 5394 | route_map_counter_increment(route_map); |
d62a17ae | 5395 | } |
5396 | ||
598ce6bd | 5397 | /* Update peer route announcements. */ |
feb17238 | 5398 | if (peer_established(member) && member->afc_nego[afi][safi]) { |
598ce6bd PM |
5399 | update_group_adjust_peer( |
5400 | peer_af_find(member, afi, safi)); | |
5401 | bgp_default_originate(member, afi, safi, 0); | |
e1a32ec1 | 5402 | bgp_announce_route(member, afi, safi, false); |
d62a17ae | 5403 | } |
5404 | } | |
598ce6bd | 5405 | |
d62a17ae | 5406 | return 0; |
5407 | } | |
5408 | ||
5409 | int peer_default_originate_unset(struct peer *peer, afi_t afi, safi_t safi) | |
5410 | { | |
598ce6bd | 5411 | struct peer *member; |
d62a17ae | 5412 | struct listnode *node, *nnode; |
5413 | ||
598ce6bd PM |
5414 | /* Inherit configuration from peer-group if peer is member. */ |
5415 | if (peer_group_active(peer)) { | |
5416 | peer_af_flag_inherit(peer, afi, safi, | |
5417 | PEER_FLAG_DEFAULT_ORIGINATE); | |
e7103a96 PM |
5418 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
5419 | default_rmap[afi][safi].name, | |
5420 | MTYPE_ROUTE_MAP_NAME); | |
5421 | PEER_ATTR_INHERIT(peer, peer->group, | |
5422 | default_rmap[afi][safi].map); | |
598ce6bd PM |
5423 | } else { |
5424 | /* Otherwise remove flag and configuration from peer. */ | |
5425 | peer_af_flag_unset(peer, afi, safi, | |
5426 | PEER_FLAG_DEFAULT_ORIGINATE); | |
d62a17ae | 5427 | if (peer->default_rmap[afi][safi].name) |
5428 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
5429 | peer->default_rmap[afi][safi].name); | |
b4897fa5 | 5430 | route_map_counter_decrement(peer->default_rmap[afi][safi].map); |
d62a17ae | 5431 | peer->default_rmap[afi][safi].name = NULL; |
5432 | peer->default_rmap[afi][safi].map = NULL; | |
5433 | } | |
5434 | ||
598ce6bd | 5435 | /* Check if handling a regular peer. */ |
d62a17ae | 5436 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
598ce6bd | 5437 | /* Update peer route announcements. */ |
feb17238 | 5438 | if (peer_established(peer) && peer->afc_nego[afi][safi]) { |
d62a17ae | 5439 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); |
5440 | bgp_default_originate(peer, afi, safi, 1); | |
e1a32ec1 | 5441 | bgp_announce_route(peer, afi, safi, false); |
d62a17ae | 5442 | } |
598ce6bd PM |
5443 | |
5444 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5445 | return 0; |
5446 | } | |
5447 | ||
598ce6bd PM |
5448 | /* |
5449 | * Remove flag and configuration from all peer-group members, unless | |
f75b9163 | 5450 | * they are explicitly overriding peer-group configuration. |
598ce6bd PM |
5451 | */ |
5452 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5453 | /* Skip peers with overridden configuration. */ | |
5454 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
5455 | PEER_FLAG_DEFAULT_ORIGINATE)) | |
5456 | continue; | |
5457 | ||
5458 | /* Remove flag and configuration on peer-group member. */ | |
66de9680 | 5459 | UNSET_FLAG(member->af_flags[afi][safi], |
d62a17ae | 5460 | PEER_FLAG_DEFAULT_ORIGINATE); |
66de9680 | 5461 | if (member->default_rmap[afi][safi].name) |
d62a17ae | 5462 | XFREE(MTYPE_ROUTE_MAP_NAME, |
66de9680 S |
5463 | member->default_rmap[afi][safi].name); |
5464 | route_map_counter_decrement(member->default_rmap[afi][safi].map); | |
5465 | member->default_rmap[afi][safi].name = NULL; | |
5466 | member->default_rmap[afi][safi].map = NULL; | |
d62a17ae | 5467 | |
598ce6bd | 5468 | /* Update peer route announcements. */ |
feb17238 | 5469 | if (peer_established(member) && member->afc_nego[afi][safi]) { |
66de9680 S |
5470 | update_group_adjust_peer(peer_af_find(member, afi, safi)); |
5471 | bgp_default_originate(member, afi, safi, 1); | |
e1a32ec1 | 5472 | bgp_announce_route(member, afi, safi, false); |
d62a17ae | 5473 | } |
5474 | } | |
598ce6bd | 5475 | |
d62a17ae | 5476 | return 0; |
5477 | } | |
5478 | ||
3dc339cd | 5479 | void peer_port_set(struct peer *peer, uint16_t port) |
d62a17ae | 5480 | { |
5481 | peer->port = port; | |
c41e9372 | 5482 | peer_flag_set(peer, PEER_FLAG_PORT); |
d62a17ae | 5483 | } |
5484 | ||
3dc339cd | 5485 | void peer_port_unset(struct peer *peer) |
d62a17ae | 5486 | { |
5487 | peer->port = BGP_PORT_DEFAULT; | |
c41e9372 | 5488 | peer_flag_unset(peer, PEER_FLAG_PORT); |
d62a17ae | 5489 | } |
5490 | ||
4ab46701 AR |
5491 | /* Set the TCP-MSS value in the peer structure, |
5492 | * This gets applied only after connection reset | |
5493 | * So this value will be used in bgp_connect. | |
5494 | */ | |
5495 | void peer_tcp_mss_set(struct peer *peer, uint32_t tcp_mss) | |
5496 | { | |
5497 | peer->tcp_mss = tcp_mss; | |
5498 | SET_FLAG(peer->flags, PEER_FLAG_TCP_MSS); | |
5499 | } | |
5500 | ||
5501 | /* Reset the TCP-MSS value in the peer structure, | |
5502 | * This gets applied only after connection reset | |
5503 | * So this value will be used in bgp_connect. | |
5504 | */ | |
5505 | void peer_tcp_mss_unset(struct peer *peer) | |
5506 | { | |
5507 | UNSET_FLAG(peer->flags, PEER_FLAG_TCP_MSS); | |
5508 | peer->tcp_mss = 0; | |
5509 | } | |
5510 | ||
d62a17ae | 5511 | /* |
5512 | * Helper function that is called after the name of the policy | |
5513 | * being used by a peer has changed (AF specific). Automatically | |
5514 | * initiates inbound or outbound processing as needed. | |
5515 | */ | |
e85e4a8d MK |
5516 | void peer_on_policy_change(struct peer *peer, afi_t afi, safi_t safi, |
5517 | int outbound) | |
d62a17ae | 5518 | { |
5519 | if (outbound) { | |
5520 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
feb17238 | 5521 | if (peer_established(peer)) |
e1a32ec1 | 5522 | bgp_announce_route(peer, afi, safi, false); |
d62a17ae | 5523 | } else { |
feb17238 | 5524 | if (!peer_established(peer)) |
d62a17ae | 5525 | return; |
5526 | ||
89c73443 DS |
5527 | if (bgp_soft_reconfig_in(peer, afi, safi)) |
5528 | return; | |
5529 | ||
5530 | if (CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_OLD_RCV) || | |
5531 | CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_NEW_RCV)) { | |
f1aa4929 DA |
5532 | if (CHECK_FLAG(peer->af_cap[afi][safi], |
5533 | PEER_CAP_ORF_PREFIX_SM_ADV) && | |
5534 | (CHECK_FLAG(peer->af_cap[afi][safi], | |
5535 | PEER_CAP_ORF_PREFIX_RM_RCV) || | |
5536 | CHECK_FLAG(peer->af_cap[afi][safi], | |
5537 | PEER_CAP_ORF_PREFIX_RM_OLD_RCV))) | |
5538 | peer_clear_soft(peer, afi, safi, | |
5539 | BGP_CLEAR_SOFT_IN_ORF_PREFIX); | |
5540 | else | |
5541 | bgp_route_refresh_send( | |
5542 | peer, afi, safi, 0, 0, 0, | |
5543 | BGP_ROUTE_REFRESH_NORMAL); | |
5544 | } | |
d62a17ae | 5545 | } |
5546 | } | |
5547 | ||
5548 | ||
5549 | /* neighbor weight. */ | |
d7c0a89a | 5550 | int peer_weight_set(struct peer *peer, afi_t afi, safi_t safi, uint16_t weight) |
d62a17ae | 5551 | { |
598ce6bd | 5552 | struct peer *member; |
d62a17ae | 5553 | struct listnode *node, *nnode; |
5554 | ||
598ce6bd PM |
5555 | /* Set flag and configuration on peer. */ |
5556 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_WEIGHT); | |
d62a17ae | 5557 | if (peer->weight[afi][safi] != weight) { |
5558 | peer->weight[afi][safi] = weight; | |
d62a17ae | 5559 | peer_on_policy_change(peer, afi, safi, 0); |
5560 | } | |
5561 | ||
598ce6bd | 5562 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 5563 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) |
5564 | return 0; | |
5565 | ||
598ce6bd PM |
5566 | /* |
5567 | * Set flag and configuration on all peer-group members, unless they are | |
f75b9163 | 5568 | * explicitly overriding peer-group configuration. |
598ce6bd PM |
5569 | */ |
5570 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5571 | /* Skip peers with overridden configuration. */ | |
5572 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
5573 | PEER_FLAG_WEIGHT)) | |
5574 | continue; | |
5575 | ||
5576 | /* Set flag and configuration on peer-group member. */ | |
5577 | SET_FLAG(member->af_flags[afi][safi], PEER_FLAG_WEIGHT); | |
5578 | if (member->weight[afi][safi] != weight) { | |
5579 | member->weight[afi][safi] = weight; | |
5580 | peer_on_policy_change(member, afi, safi, 0); | |
d62a17ae | 5581 | } |
5582 | } | |
598ce6bd | 5583 | |
d62a17ae | 5584 | return 0; |
5585 | } | |
5586 | ||
5587 | int peer_weight_unset(struct peer *peer, afi_t afi, safi_t safi) | |
5588 | { | |
598ce6bd | 5589 | struct peer *member; |
d62a17ae | 5590 | struct listnode *node, *nnode; |
5591 | ||
598ce6bd PM |
5592 | if (!CHECK_FLAG(peer->af_flags[afi][safi], PEER_FLAG_WEIGHT)) |
5593 | return 0; | |
5594 | ||
5595 | /* Inherit configuration from peer-group if peer is member. */ | |
d62a17ae | 5596 | if (peer_group_active(peer)) { |
598ce6bd | 5597 | peer_af_flag_inherit(peer, afi, safi, PEER_FLAG_WEIGHT); |
e7103a96 | 5598 | PEER_ATTR_INHERIT(peer, peer->group, weight[afi][safi]); |
d62a17ae | 5599 | |
598ce6bd PM |
5600 | peer_on_policy_change(peer, afi, safi, 0); |
5601 | return 0; | |
d62a17ae | 5602 | } |
5603 | ||
598ce6bd PM |
5604 | /* Remove flag and configuration from peer. */ |
5605 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_WEIGHT); | |
5606 | peer->weight[afi][safi] = 0; | |
5607 | peer_on_policy_change(peer, afi, safi, 0); | |
d62a17ae | 5608 | |
598ce6bd PM |
5609 | /* Skip peer-group mechanics for regular peers. */ |
5610 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
5611 | return 0; | |
d62a17ae | 5612 | |
598ce6bd PM |
5613 | /* |
5614 | * Remove flag and configuration from all peer-group members, unless | |
f75b9163 | 5615 | * they are explicitly overriding peer-group configuration. |
598ce6bd PM |
5616 | */ |
5617 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5618 | /* Skip peers with overridden configuration. */ | |
5619 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
5620 | PEER_FLAG_WEIGHT)) | |
5621 | continue; | |
5622 | ||
5623 | /* Skip peers where flag is already disabled. */ | |
5624 | if (!CHECK_FLAG(member->af_flags[afi][safi], PEER_FLAG_WEIGHT)) | |
5625 | continue; | |
5626 | ||
5627 | /* Remove flag and configuration on peer-group member. */ | |
5628 | UNSET_FLAG(member->af_flags[afi][safi], PEER_FLAG_WEIGHT); | |
5629 | member->weight[afi][safi] = 0; | |
5630 | peer_on_policy_change(member, afi, safi, 0); | |
d62a17ae | 5631 | } |
598ce6bd | 5632 | |
d62a17ae | 5633 | return 0; |
5634 | } | |
5635 | ||
d7c0a89a | 5636 | int peer_timers_set(struct peer *peer, uint32_t keepalive, uint32_t holdtime) |
d62a17ae | 5637 | { |
b90a8e13 | 5638 | struct peer *member; |
d62a17ae | 5639 | struct listnode *node, *nnode; |
5640 | ||
48e1932b | 5641 | if (keepalive > UINT16_MAX) |
d62a17ae | 5642 | return BGP_ERR_INVALID_VALUE; |
5643 | ||
48e1932b | 5644 | if (holdtime > UINT16_MAX) |
d62a17ae | 5645 | return BGP_ERR_INVALID_VALUE; |
5646 | ||
d62a17ae | 5647 | if (holdtime < 3 && holdtime != 0) |
5648 | return BGP_ERR_INVALID_VALUE; | |
5649 | ||
b90a8e13 PM |
5650 | /* Set flag and configuration on peer. */ |
5651 | peer_flag_set(peer, PEER_FLAG_TIMER); | |
d62a17ae | 5652 | peer->holdtime = holdtime; |
5653 | peer->keepalive = (keepalive < holdtime / 3 ? keepalive : holdtime / 3); | |
5654 | ||
b90a8e13 PM |
5655 | /* Skip peer-group mechanics for regular peers. */ |
5656 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
5657 | return 0; | |
d25e4efc | 5658 | |
b90a8e13 PM |
5659 | /* |
5660 | * Set flag and configuration on all peer-group members, unless they are | |
f75b9163 | 5661 | * explicitly overriding peer-group configuration. |
b90a8e13 PM |
5662 | */ |
5663 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5664 | /* Skip peers with overridden configuration. */ | |
5665 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_TIMER)) | |
5666 | continue; | |
d25e4efc | 5667 | |
b90a8e13 PM |
5668 | /* Set flag and configuration on peer-group member. */ |
5669 | SET_FLAG(member->flags, PEER_FLAG_TIMER); | |
b28a12e6 | 5670 | PEER_ATTR_INHERIT(member, peer->group, holdtime); |
5671 | PEER_ATTR_INHERIT(member, peer->group, keepalive); | |
d62a17ae | 5672 | } |
d25e4efc | 5673 | |
d62a17ae | 5674 | return 0; |
5675 | } | |
5676 | ||
5677 | int peer_timers_unset(struct peer *peer) | |
5678 | { | |
b90a8e13 | 5679 | struct peer *member; |
d62a17ae | 5680 | struct listnode *node, *nnode; |
5681 | ||
b90a8e13 PM |
5682 | /* Inherit configuration from peer-group if peer is member. */ |
5683 | if (peer_group_active(peer)) { | |
5684 | peer_flag_inherit(peer, PEER_FLAG_TIMER); | |
5685 | PEER_ATTR_INHERIT(peer, peer->group, holdtime); | |
5686 | PEER_ATTR_INHERIT(peer, peer->group, keepalive); | |
5687 | } else { | |
5688 | /* Otherwise remove flag and configuration from peer. */ | |
5689 | peer_flag_unset(peer, PEER_FLAG_TIMER); | |
d25e4efc | 5690 | peer->holdtime = 0; |
b90a8e13 PM |
5691 | peer->keepalive = 0; |
5692 | } | |
d25e4efc | 5693 | |
b90a8e13 PM |
5694 | /* Skip peer-group mechanics for regular peers. */ |
5695 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
5696 | return 0; | |
5697 | ||
5698 | /* | |
5699 | * Remove flag and configuration from all peer-group members, unless | |
f75b9163 | 5700 | * they are explicitly overriding peer-group configuration. |
b90a8e13 PM |
5701 | */ |
5702 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5703 | /* Skip peers with overridden configuration. */ | |
5704 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_TIMER)) | |
5705 | continue; | |
d25e4efc | 5706 | |
b90a8e13 PM |
5707 | /* Remove flag and configuration on peer-group member. */ |
5708 | UNSET_FLAG(member->flags, PEER_FLAG_TIMER); | |
5709 | member->holdtime = 0; | |
5710 | member->keepalive = 0; | |
d62a17ae | 5711 | } |
5712 | ||
5713 | return 0; | |
5714 | } | |
5715 | ||
d7c0a89a | 5716 | int peer_timers_connect_set(struct peer *peer, uint32_t connect) |
d62a17ae | 5717 | { |
b90a8e13 | 5718 | struct peer *member; |
d62a17ae | 5719 | struct listnode *node, *nnode; |
5720 | ||
48e1932b | 5721 | if (connect > UINT16_MAX) |
d62a17ae | 5722 | return BGP_ERR_INVALID_VALUE; |
5723 | ||
b90a8e13 PM |
5724 | /* Set flag and configuration on peer. */ |
5725 | peer_flag_set(peer, PEER_FLAG_TIMER_CONNECT); | |
d62a17ae | 5726 | peer->connect = connect; |
d62a17ae | 5727 | peer->v_connect = connect; |
5728 | ||
b90a8e13 | 5729 | /* Skip peer-group mechanics for regular peers. */ |
91de6fa2 | 5730 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
feb17238 | 5731 | if (!peer_established(peer)) { |
91de6fa2 | 5732 | if (peer_active(peer)) |
5733 | BGP_EVENT_ADD(peer, BGP_Stop); | |
5734 | BGP_EVENT_ADD(peer, BGP_Start); | |
5735 | } | |
d62a17ae | 5736 | return 0; |
91de6fa2 | 5737 | } |
b90a8e13 PM |
5738 | /* |
5739 | * Set flag and configuration on all peer-group members, unless they are | |
f75b9163 | 5740 | * explicitly overriding peer-group configuration. |
b90a8e13 PM |
5741 | */ |
5742 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5743 | /* Skip peers with overridden configuration. */ | |
5744 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_TIMER_CONNECT)) | |
5745 | continue; | |
5746 | ||
5747 | /* Set flag and configuration on peer-group member. */ | |
5748 | SET_FLAG(member->flags, PEER_FLAG_TIMER_CONNECT); | |
5749 | member->connect = connect; | |
5750 | member->v_connect = connect; | |
91de6fa2 | 5751 | |
feb17238 | 5752 | if (!peer_established(member)) { |
91de6fa2 | 5753 | if (peer_active(member)) |
5754 | BGP_EVENT_ADD(member, BGP_Stop); | |
5755 | BGP_EVENT_ADD(member, BGP_Start); | |
5756 | } | |
d62a17ae | 5757 | } |
b90a8e13 | 5758 | |
d62a17ae | 5759 | return 0; |
5760 | } | |
5761 | ||
5762 | int peer_timers_connect_unset(struct peer *peer) | |
5763 | { | |
b90a8e13 | 5764 | struct peer *member; |
d62a17ae | 5765 | struct listnode *node, *nnode; |
5766 | ||
b90a8e13 PM |
5767 | /* Inherit configuration from peer-group if peer is member. */ |
5768 | if (peer_group_active(peer)) { | |
5769 | peer_flag_inherit(peer, PEER_FLAG_TIMER_CONNECT); | |
5770 | PEER_ATTR_INHERIT(peer, peer->group, connect); | |
5771 | } else { | |
5772 | /* Otherwise remove flag and configuration from peer. */ | |
5773 | peer_flag_unset(peer, PEER_FLAG_TIMER_CONNECT); | |
5774 | peer->connect = 0; | |
5775 | } | |
d62a17ae | 5776 | |
b90a8e13 PM |
5777 | /* Set timer with fallback to default value. */ |
5778 | if (peer->connect) | |
5779 | peer->v_connect = peer->connect; | |
5780 | else | |
5d5393b9 | 5781 | peer->v_connect = peer->bgp->default_connect_retry; |
d62a17ae | 5782 | |
b90a8e13 | 5783 | /* Skip peer-group mechanics for regular peers. */ |
91de6fa2 | 5784 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
feb17238 | 5785 | if (!peer_established(peer)) { |
91de6fa2 | 5786 | if (peer_active(peer)) |
5787 | BGP_EVENT_ADD(peer, BGP_Stop); | |
5788 | BGP_EVENT_ADD(peer, BGP_Start); | |
5789 | } | |
d62a17ae | 5790 | return 0; |
91de6fa2 | 5791 | } |
b90a8e13 PM |
5792 | /* |
5793 | * Remove flag and configuration from all peer-group members, unless | |
f75b9163 | 5794 | * they are explicitly overriding peer-group configuration. |
b90a8e13 PM |
5795 | */ |
5796 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5797 | /* Skip peers with overridden configuration. */ | |
5798 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_TIMER_CONNECT)) | |
5799 | continue; | |
5800 | ||
5801 | /* Remove flag and configuration on peer-group member. */ | |
5802 | UNSET_FLAG(member->flags, PEER_FLAG_TIMER_CONNECT); | |
5803 | member->connect = 0; | |
5d5393b9 | 5804 | member->v_connect = peer->bgp->default_connect_retry; |
91de6fa2 | 5805 | |
feb17238 | 5806 | if (!peer_established(member)) { |
91de6fa2 | 5807 | if (peer_active(member)) |
5808 | BGP_EVENT_ADD(member, BGP_Stop); | |
5809 | BGP_EVENT_ADD(member, BGP_Start); | |
5810 | } | |
d62a17ae | 5811 | } |
b90a8e13 | 5812 | |
d62a17ae | 5813 | return 0; |
5814 | } | |
5815 | ||
d7c0a89a | 5816 | int peer_advertise_interval_set(struct peer *peer, uint32_t routeadv) |
d62a17ae | 5817 | { |
b90a8e13 | 5818 | struct peer *member; |
d62a17ae | 5819 | struct listnode *node, *nnode; |
5820 | ||
5821 | if (routeadv > 600) | |
5822 | return BGP_ERR_INVALID_VALUE; | |
5823 | ||
b90a8e13 PM |
5824 | /* Set flag and configuration on peer. */ |
5825 | peer_flag_set(peer, PEER_FLAG_ROUTEADV); | |
d62a17ae | 5826 | peer->routeadv = routeadv; |
5827 | peer->v_routeadv = routeadv; | |
5828 | ||
b90a8e13 | 5829 | /* Check if handling a regular peer. */ |
d62a17ae | 5830 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
b90a8e13 | 5831 | /* Update peer route announcements. */ |
d62a17ae | 5832 | update_group_adjust_peer_afs(peer); |
feb17238 | 5833 | if (peer_established(peer)) |
d62a17ae | 5834 | bgp_announce_route_all(peer); |
b90a8e13 PM |
5835 | |
5836 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5837 | return 0; |
5838 | } | |
5839 | ||
b90a8e13 PM |
5840 | /* |
5841 | * Set flag and configuration on all peer-group members, unless they are | |
f75b9163 | 5842 | * explicitly overriding peer-group configuration. |
b90a8e13 PM |
5843 | */ |
5844 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5845 | /* Skip peers with overridden configuration. */ | |
5846 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_ROUTEADV)) | |
5847 | continue; | |
5848 | ||
5849 | /* Set flag and configuration on peer-group member. */ | |
5850 | SET_FLAG(member->flags, PEER_FLAG_ROUTEADV); | |
5851 | member->routeadv = routeadv; | |
5852 | member->v_routeadv = routeadv; | |
5853 | ||
5854 | /* Update peer route announcements. */ | |
5855 | update_group_adjust_peer_afs(member); | |
feb17238 | 5856 | if (peer_established(member)) |
b90a8e13 | 5857 | bgp_announce_route_all(member); |
d62a17ae | 5858 | } |
5859 | ||
5860 | return 0; | |
5861 | } | |
5862 | ||
5863 | int peer_advertise_interval_unset(struct peer *peer) | |
5864 | { | |
b90a8e13 | 5865 | struct peer *member; |
d62a17ae | 5866 | struct listnode *node, *nnode; |
5867 | ||
b90a8e13 PM |
5868 | /* Inherit configuration from peer-group if peer is member. */ |
5869 | if (peer_group_active(peer)) { | |
5870 | peer_flag_inherit(peer, PEER_FLAG_ROUTEADV); | |
5871 | PEER_ATTR_INHERIT(peer, peer->group, routeadv); | |
5872 | } else { | |
5873 | /* Otherwise remove flag and configuration from peer. */ | |
5874 | peer_flag_unset(peer, PEER_FLAG_ROUTEADV); | |
5875 | peer->routeadv = 0; | |
5876 | } | |
d62a17ae | 5877 | |
b90a8e13 PM |
5878 | /* Set timer with fallback to default value. */ |
5879 | if (peer->routeadv) | |
5880 | peer->v_routeadv = peer->routeadv; | |
d62a17ae | 5881 | else |
b90a8e13 PM |
5882 | peer->v_routeadv = (peer->sort == BGP_PEER_IBGP) |
5883 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
5884 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 5885 | |
b90a8e13 | 5886 | /* Check if handling a regular peer. */ |
d62a17ae | 5887 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
b90a8e13 | 5888 | /* Update peer route announcements. */ |
d62a17ae | 5889 | update_group_adjust_peer_afs(peer); |
feb17238 | 5890 | if (peer_established(peer)) |
d62a17ae | 5891 | bgp_announce_route_all(peer); |
b90a8e13 PM |
5892 | |
5893 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5894 | return 0; |
5895 | } | |
5896 | ||
b90a8e13 PM |
5897 | /* |
5898 | * Remove flag and configuration from all peer-group members, unless | |
f75b9163 | 5899 | * they are explicitly overriding peer-group configuration. |
b90a8e13 PM |
5900 | */ |
5901 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5902 | /* Skip peers with overridden configuration. */ | |
5903 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_ROUTEADV)) | |
5904 | continue; | |
d62a17ae | 5905 | |
b90a8e13 PM |
5906 | /* Remove flag and configuration on peer-group member. */ |
5907 | UNSET_FLAG(member->flags, PEER_FLAG_ROUTEADV); | |
5908 | member->routeadv = 0; | |
5909 | member->v_routeadv = (member->sort == BGP_PEER_IBGP) | |
5910 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
5911 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 5912 | |
b90a8e13 PM |
5913 | /* Update peer route announcements. */ |
5914 | update_group_adjust_peer_afs(member); | |
feb17238 | 5915 | if (peer_established(member)) |
b90a8e13 | 5916 | bgp_announce_route_all(member); |
d62a17ae | 5917 | } |
5918 | ||
5919 | return 0; | |
5920 | } | |
5921 | ||
6c537a18 DS |
5922 | /* set the peers RFC 4271 DelayOpen session attribute flag and DelayOpenTimer |
5923 | * interval | |
5924 | */ | |
5925 | int peer_timers_delayopen_set(struct peer *peer, uint32_t delayopen) | |
5926 | { | |
5927 | struct peer *member; | |
5928 | struct listnode *node; | |
5929 | ||
5930 | /* Set peers session attribute flag and timer interval. */ | |
5931 | peer_flag_set(peer, PEER_FLAG_TIMER_DELAYOPEN); | |
5932 | peer->delayopen = delayopen; | |
5933 | peer->v_delayopen = delayopen; | |
5934 | ||
5935 | /* Skip group mechanics for regular peers. */ | |
5936 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
5937 | return 0; | |
5938 | ||
5939 | /* Set flag and configuration on all peer-group members, unless they are | |
f75b9163 | 5940 | * explicitly overriding peer-group configuration. |
6c537a18 DS |
5941 | */ |
5942 | for (ALL_LIST_ELEMENTS_RO(peer->group->peer, node, member)) { | |
5943 | /* Skip peers with overridden configuration. */ | |
5944 | if (CHECK_FLAG(member->flags_override, | |
5945 | PEER_FLAG_TIMER_DELAYOPEN)) | |
5946 | continue; | |
5947 | ||
5948 | /* Set session attribute flag and timer intervals on peer-group | |
5949 | * member. | |
5950 | */ | |
5951 | SET_FLAG(member->flags, PEER_FLAG_TIMER_DELAYOPEN); | |
5952 | member->delayopen = delayopen; | |
5953 | member->v_delayopen = delayopen; | |
5954 | } | |
5955 | ||
5956 | return 0; | |
5957 | } | |
5958 | ||
5959 | /* unset the peers RFC 4271 DelayOpen session attribute flag and reset the | |
5960 | * DelayOpenTimer interval to the default value. | |
5961 | */ | |
5962 | int peer_timers_delayopen_unset(struct peer *peer) | |
5963 | { | |
5964 | struct peer *member; | |
5965 | struct listnode *node; | |
5966 | ||
5967 | /* Inherit configuration from peer-group if peer is member. */ | |
5968 | if (peer_group_active(peer)) { | |
5969 | peer_flag_inherit(peer, PEER_FLAG_TIMER_DELAYOPEN); | |
5970 | PEER_ATTR_INHERIT(peer, peer->group, delayopen); | |
5971 | } else { | |
5972 | /* Otherwise remove session attribute flag and set timer | |
5973 | * interval to default value. | |
5974 | */ | |
5975 | peer_flag_unset(peer, PEER_FLAG_TIMER_DELAYOPEN); | |
5976 | peer->delayopen = peer->bgp->default_delayopen; | |
5977 | } | |
5978 | ||
5979 | /* Set timer value to zero */ | |
5980 | peer->v_delayopen = 0; | |
5981 | ||
5982 | /* Skip peer-group mechanics for regular peers. */ | |
5983 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
5984 | return 0; | |
5985 | ||
5986 | /* Remove flag and configuration from all peer-group members, unless | |
f75b9163 | 5987 | * they are explicitly overriding peer-group configuration. |
6c537a18 DS |
5988 | */ |
5989 | for (ALL_LIST_ELEMENTS_RO(peer->group->peer, node, member)) { | |
5990 | /* Skip peers with overridden configuration. */ | |
5991 | if (CHECK_FLAG(member->flags_override, | |
5992 | PEER_FLAG_TIMER_DELAYOPEN)) | |
5993 | continue; | |
5994 | ||
5995 | /* Remove session attribute flag, reset the timer interval to | |
5996 | * the default value and set the timer value to zero. | |
5997 | */ | |
5998 | UNSET_FLAG(member->flags, PEER_FLAG_TIMER_DELAYOPEN); | |
5999 | member->delayopen = peer->bgp->default_delayopen; | |
6000 | member->v_delayopen = 0; | |
6001 | } | |
6002 | ||
6003 | return 0; | |
6004 | } | |
6005 | ||
d62a17ae | 6006 | /* neighbor interface */ |
6007 | void peer_interface_set(struct peer *peer, const char *str) | |
6008 | { | |
0a22ddfb | 6009 | XFREE(MTYPE_BGP_PEER_IFNAME, peer->ifname); |
d62a17ae | 6010 | peer->ifname = XSTRDUP(MTYPE_BGP_PEER_IFNAME, str); |
6011 | } | |
6012 | ||
6013 | void peer_interface_unset(struct peer *peer) | |
6014 | { | |
0a22ddfb | 6015 | XFREE(MTYPE_BGP_PEER_IFNAME, peer->ifname); |
d62a17ae | 6016 | } |
6017 | ||
6018 | /* Allow-as in. */ | |
6019 | int peer_allowas_in_set(struct peer *peer, afi_t afi, safi_t safi, | |
6020 | int allow_num, int origin) | |
6021 | { | |
598ce6bd | 6022 | struct peer *member; |
d62a17ae | 6023 | struct listnode *node, *nnode; |
6024 | ||
598ce6bd PM |
6025 | if (!origin && (allow_num < 1 || allow_num > 10)) |
6026 | return BGP_ERR_INVALID_VALUE; | |
6027 | ||
6028 | /* Set flag and configuration on peer. */ | |
6029 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_ALLOWAS_IN); | |
d62a17ae | 6030 | if (origin) { |
598ce6bd | 6031 | if (peer->allowas_in[afi][safi] != 0 |
d62a17ae | 6032 | || !CHECK_FLAG(peer->af_flags[afi][safi], |
6033 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { | |
d62a17ae | 6034 | peer_af_flag_set(peer, afi, safi, |
6035 | PEER_FLAG_ALLOWAS_IN_ORIGIN); | |
598ce6bd | 6036 | peer->allowas_in[afi][safi] = 0; |
d62a17ae | 6037 | peer_on_policy_change(peer, afi, safi, 0); |
6038 | } | |
d62a17ae | 6039 | } else { |
d62a17ae | 6040 | if (peer->allowas_in[afi][safi] != allow_num |
6041 | || CHECK_FLAG(peer->af_flags[afi][safi], | |
6042 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { | |
598ce6bd | 6043 | |
d62a17ae | 6044 | peer_af_flag_unset(peer, afi, safi, |
6045 | PEER_FLAG_ALLOWAS_IN_ORIGIN); | |
598ce6bd | 6046 | peer->allowas_in[afi][safi] = allow_num; |
d62a17ae | 6047 | peer_on_policy_change(peer, afi, safi, 0); |
6048 | } | |
598ce6bd | 6049 | } |
d62a17ae | 6050 | |
598ce6bd PM |
6051 | /* Skip peer-group mechanics for regular peers. */ |
6052 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
6053 | return 0; | |
d62a17ae | 6054 | |
598ce6bd PM |
6055 | /* |
6056 | * Set flag and configuration on all peer-group members, unless | |
f75b9163 | 6057 | * they are explicitly overriding peer-group configuration. |
598ce6bd PM |
6058 | */ |
6059 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6060 | /* Skip peers with overridden configuration. */ | |
6061 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
246bb5f0 | 6062 | PEER_FLAG_ALLOWAS_IN)) |
598ce6bd PM |
6063 | continue; |
6064 | ||
6065 | /* Set flag and configuration on peer-group member. */ | |
6066 | SET_FLAG(member->af_flags[afi][safi], PEER_FLAG_ALLOWAS_IN); | |
6067 | if (origin) { | |
6068 | if (member->allowas_in[afi][safi] != 0 | |
6069 | || !CHECK_FLAG(member->af_flags[afi][safi], | |
cf9ac8bf | 6070 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { |
598ce6bd | 6071 | SET_FLAG(member->af_flags[afi][safi], |
cf9ac8bf | 6072 | PEER_FLAG_ALLOWAS_IN_ORIGIN); |
598ce6bd PM |
6073 | member->allowas_in[afi][safi] = 0; |
6074 | peer_on_policy_change(peer, afi, safi, 0); | |
6075 | } | |
6076 | } else { | |
6077 | if (member->allowas_in[afi][safi] != allow_num | |
6078 | || CHECK_FLAG(member->af_flags[afi][safi], | |
d62a17ae | 6079 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { |
598ce6bd PM |
6080 | UNSET_FLAG(member->af_flags[afi][safi], |
6081 | PEER_FLAG_ALLOWAS_IN_ORIGIN); | |
6082 | member->allowas_in[afi][safi] = allow_num; | |
d62a17ae | 6083 | peer_on_policy_change(peer, afi, safi, 0); |
6084 | } | |
6085 | } | |
6086 | } | |
6087 | ||
6088 | return 0; | |
6089 | } | |
6090 | ||
6091 | int peer_allowas_in_unset(struct peer *peer, afi_t afi, safi_t safi) | |
6092 | { | |
598ce6bd | 6093 | struct peer *member; |
d62a17ae | 6094 | struct listnode *node, *nnode; |
6095 | ||
598ce6bd PM |
6096 | /* Skip peer if flag is already disabled. */ |
6097 | if (!CHECK_FLAG(peer->af_flags[afi][safi], PEER_FLAG_ALLOWAS_IN)) | |
6098 | return 0; | |
d62a17ae | 6099 | |
598ce6bd PM |
6100 | /* Inherit configuration from peer-group if peer is member. */ |
6101 | if (peer_group_active(peer)) { | |
6102 | peer_af_flag_inherit(peer, afi, safi, PEER_FLAG_ALLOWAS_IN); | |
6103 | peer_af_flag_inherit(peer, afi, safi, | |
cf9ac8bf | 6104 | PEER_FLAG_ALLOWAS_IN_ORIGIN); |
e7103a96 | 6105 | PEER_ATTR_INHERIT(peer, peer->group, allowas_in[afi][safi]); |
d62a17ae | 6106 | peer_on_policy_change(peer, afi, safi, 0); |
598ce6bd PM |
6107 | |
6108 | return 0; | |
6109 | } | |
6110 | ||
6111 | /* Remove flag and configuration from peer. */ | |
6112 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_ALLOWAS_IN); | |
6113 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_ALLOWAS_IN_ORIGIN); | |
6114 | peer->allowas_in[afi][safi] = 0; | |
6115 | peer_on_policy_change(peer, afi, safi, 0); | |
6116 | ||
6117 | /* Skip peer-group mechanics if handling a regular peer. */ | |
6118 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
6119 | return 0; | |
6120 | ||
6121 | /* | |
6122 | * Remove flags and configuration from all peer-group members, unless | |
f75b9163 | 6123 | * they are explicitly overriding peer-group configuration. |
598ce6bd PM |
6124 | */ |
6125 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6126 | /* Skip peers with overridden configuration. */ | |
6127 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
cf9ac8bf | 6128 | PEER_FLAG_ALLOWAS_IN)) |
598ce6bd PM |
6129 | continue; |
6130 | ||
598ce6bd | 6131 | /* Remove flags and configuration on peer-group member. */ |
cf9ac8bf | 6132 | UNSET_FLAG(member->af_flags[afi][safi], PEER_FLAG_ALLOWAS_IN); |
598ce6bd | 6133 | UNSET_FLAG(member->af_flags[afi][safi], |
cf9ac8bf | 6134 | PEER_FLAG_ALLOWAS_IN_ORIGIN); |
598ce6bd PM |
6135 | member->allowas_in[afi][safi] = 0; |
6136 | peer_on_policy_change(member, afi, safi, 0); | |
d62a17ae | 6137 | } |
6138 | ||
6139 | return 0; | |
6140 | } | |
6141 | ||
f4b8ec07 CS |
6142 | int peer_local_as_set(struct peer *peer, as_t as, bool no_prepend, |
6143 | bool replace_as) | |
d62a17ae | 6144 | { |
a14810f4 | 6145 | bool old_no_prepend, old_replace_as; |
d62a17ae | 6146 | struct bgp *bgp = peer->bgp; |
a14810f4 | 6147 | struct peer *member; |
d62a17ae | 6148 | struct listnode *node, *nnode; |
d62a17ae | 6149 | |
6150 | if (bgp->as == as) | |
6151 | return BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS; | |
6152 | ||
a14810f4 PM |
6153 | /* Save previous flag states. */ |
6154 | old_no_prepend = | |
6155 | !!CHECK_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
6156 | old_replace_as = | |
6157 | !!CHECK_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
d62a17ae | 6158 | |
a14810f4 PM |
6159 | /* Set flag and configuration on peer. */ |
6160 | peer_flag_set(peer, PEER_FLAG_LOCAL_AS); | |
6161 | peer_flag_modify(peer, PEER_FLAG_LOCAL_AS_NO_PREPEND, no_prepend); | |
6162 | peer_flag_modify(peer, PEER_FLAG_LOCAL_AS_REPLACE_AS, replace_as); | |
d62a17ae | 6163 | |
a14810f4 PM |
6164 | if (peer->change_local_as == as && old_no_prepend == no_prepend |
6165 | && old_replace_as == replace_as) | |
6166 | return 0; | |
6167 | peer->change_local_as = as; | |
d6b0327c | 6168 | (void)peer_sort(peer); |
d62a17ae | 6169 | |
a14810f4 | 6170 | /* Check if handling a regular peer. */ |
1a9ffbab | 6171 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) |
d62a17ae | 6172 | return 0; |
d62a17ae | 6173 | |
a14810f4 PM |
6174 | /* |
6175 | * Set flag and configuration on all peer-group members, unless they are | |
f75b9163 | 6176 | * explicitly overriding peer-group configuration. |
a14810f4 PM |
6177 | */ |
6178 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6179 | /* Skip peers with overridden configuration. */ | |
6180 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_LOCAL_AS)) | |
6181 | continue; | |
d62a17ae | 6182 | |
a14810f4 PM |
6183 | /* Skip peers with the same configuration. */ |
6184 | old_no_prepend = CHECK_FLAG(member->flags, | |
6185 | PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
6186 | old_replace_as = CHECK_FLAG(member->flags, | |
6187 | PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
6188 | if (member->change_local_as == as | |
6189 | && CHECK_FLAG(member->flags, PEER_FLAG_LOCAL_AS) | |
6190 | && old_no_prepend == no_prepend | |
6191 | && old_replace_as == replace_as) | |
6192 | continue; | |
d62a17ae | 6193 | |
a14810f4 PM |
6194 | /* Set flag and configuration on peer-group member. */ |
6195 | SET_FLAG(member->flags, PEER_FLAG_LOCAL_AS); | |
6196 | COND_FLAG(member->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND, | |
6197 | no_prepend); | |
6198 | COND_FLAG(member->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS, | |
6199 | replace_as); | |
6200 | member->change_local_as = as; | |
d62a17ae | 6201 | } |
6202 | ||
6203 | return 0; | |
6204 | } | |
6205 | ||
6206 | int peer_local_as_unset(struct peer *peer) | |
6207 | { | |
a14810f4 | 6208 | struct peer *member; |
d62a17ae | 6209 | struct listnode *node, *nnode; |
6210 | ||
a14810f4 | 6211 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_LOCAL_AS)) |
d62a17ae | 6212 | return 0; |
6213 | ||
a14810f4 PM |
6214 | /* Inherit configuration from peer-group if peer is member. */ |
6215 | if (peer_group_active(peer)) { | |
6216 | peer_flag_inherit(peer, PEER_FLAG_LOCAL_AS); | |
6217 | peer_flag_inherit(peer, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
6218 | peer_flag_inherit(peer, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
6219 | PEER_ATTR_INHERIT(peer, peer->group, change_local_as); | |
6220 | } else { | |
6221 | /* Otherwise remove flag and configuration from peer. */ | |
6222 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS); | |
6223 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
6224 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
6225 | peer->change_local_as = 0; | |
6226 | } | |
d62a17ae | 6227 | |
a14810f4 | 6228 | /* Check if handling a regular peer. */ |
d62a17ae | 6229 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 6230 | /* Send notification or stop peer depending on state. */ |
d62a17ae | 6231 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
6232 | peer->last_reset = PEER_DOWN_LOCAL_AS_CHANGE; | |
6233 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
6234 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
6235 | } else | |
6236 | BGP_EVENT_ADD(peer, BGP_Stop); | |
6237 | ||
a14810f4 | 6238 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 6239 | return 0; |
6240 | } | |
6241 | ||
a14810f4 PM |
6242 | /* |
6243 | * Remove flag and configuration from all peer-group members, unless | |
f75b9163 | 6244 | * they are explicitly overriding peer-group configuration. |
a14810f4 PM |
6245 | */ |
6246 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6247 | /* Skip peers with overridden configuration. */ | |
6248 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_LOCAL_AS)) | |
6249 | continue; | |
d62a17ae | 6250 | |
a14810f4 PM |
6251 | /* Remove flag and configuration on peer-group member. */ |
6252 | UNSET_FLAG(member->flags, PEER_FLAG_LOCAL_AS); | |
6253 | UNSET_FLAG(member->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
6254 | UNSET_FLAG(member->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
6255 | member->change_local_as = 0; | |
6256 | ||
6257 | /* Send notification or stop peer depending on state. */ | |
6258 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) { | |
6259 | member->last_reset = PEER_DOWN_LOCAL_AS_CHANGE; | |
6260 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 6261 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
6262 | } else | |
a14810f4 | 6263 | bgp_session_reset(member); |
d62a17ae | 6264 | } |
a14810f4 | 6265 | |
d62a17ae | 6266 | return 0; |
6267 | } | |
6268 | ||
6269 | /* Set password for authenticating with the peer. */ | |
6270 | int peer_password_set(struct peer *peer, const char *password) | |
6271 | { | |
a14810f4 PM |
6272 | struct peer *member; |
6273 | struct listnode *node, *nnode; | |
d62a17ae | 6274 | int len = password ? strlen(password) : 0; |
6275 | int ret = BGP_SUCCESS; | |
6276 | ||
6277 | if ((len < PEER_PASSWORD_MINLEN) || (len > PEER_PASSWORD_MAXLEN)) | |
6278 | return BGP_ERR_INVALID_VALUE; | |
6279 | ||
a14810f4 PM |
6280 | /* Set flag and configuration on peer. */ |
6281 | peer_flag_set(peer, PEER_FLAG_PASSWORD); | |
6282 | if (peer->password && strcmp(peer->password, password) == 0) | |
d62a17ae | 6283 | return 0; |
a14810f4 | 6284 | XFREE(MTYPE_PEER_PASSWORD, peer->password); |
d62a17ae | 6285 | peer->password = XSTRDUP(MTYPE_PEER_PASSWORD, password); |
6286 | ||
a14810f4 | 6287 | /* Check if handling a regular peer. */ |
d62a17ae | 6288 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 6289 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 6290 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
6291 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
6292 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
6293 | else | |
6294 | bgp_session_reset(peer); | |
6295 | ||
a14810f4 PM |
6296 | /* |
6297 | * Attempt to install password on socket and skip peer-group | |
6298 | * mechanics. | |
6299 | */ | |
d62a17ae | 6300 | if (BGP_PEER_SU_UNSPEC(peer)) |
6301 | return BGP_SUCCESS; | |
d62a17ae | 6302 | return (bgp_md5_set(peer) >= 0) ? BGP_SUCCESS |
6303 | : BGP_ERR_TCPSIG_FAILED; | |
6304 | } | |
6305 | ||
a14810f4 PM |
6306 | /* |
6307 | * Set flag and configuration on all peer-group members, unless they are | |
f75b9163 | 6308 | * explicitly overriding peer-group configuration. |
a14810f4 PM |
6309 | */ |
6310 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6311 | /* Skip peers with overridden configuration. */ | |
6312 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_PASSWORD)) | |
d62a17ae | 6313 | continue; |
6314 | ||
a14810f4 PM |
6315 | /* Skip peers with the same password. */ |
6316 | if (member->password && strcmp(member->password, password) == 0) | |
6317 | continue; | |
d62a17ae | 6318 | |
a14810f4 PM |
6319 | /* Set flag and configuration on peer-group member. */ |
6320 | SET_FLAG(member->flags, PEER_FLAG_PASSWORD); | |
6321 | if (member->password) | |
6322 | XFREE(MTYPE_PEER_PASSWORD, member->password); | |
6323 | member->password = XSTRDUP(MTYPE_PEER_PASSWORD, password); | |
6324 | ||
6325 | /* Send notification or reset peer depending on state. */ | |
6326 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) | |
6327 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 6328 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
6329 | else | |
a14810f4 | 6330 | bgp_session_reset(member); |
d62a17ae | 6331 | |
a14810f4 PM |
6332 | /* Attempt to install password on socket. */ |
6333 | if (!BGP_PEER_SU_UNSPEC(member) && bgp_md5_set(member) < 0) | |
6334 | ret = BGP_ERR_TCPSIG_FAILED; | |
d62a17ae | 6335 | } |
6336 | ||
9e7d9a61 QY |
6337 | /* Set flag and configuration on all peer-group listen ranges */ |
6338 | struct listnode *ln; | |
6339 | struct prefix *lr; | |
6340 | ||
6341 | for (ALL_LIST_ELEMENTS_RO(peer->group->listen_range[AFI_IP], ln, lr)) | |
a4faae3a | 6342 | bgp_md5_set_prefix(peer->bgp, lr, password); |
9e7d9a61 | 6343 | for (ALL_LIST_ELEMENTS_RO(peer->group->listen_range[AFI_IP6], ln, lr)) |
a4faae3a | 6344 | bgp_md5_set_prefix(peer->bgp, lr, password); |
9e7d9a61 | 6345 | |
d62a17ae | 6346 | return ret; |
6347 | } | |
6348 | ||
6349 | int peer_password_unset(struct peer *peer) | |
6350 | { | |
a14810f4 PM |
6351 | struct peer *member; |
6352 | struct listnode *node, *nnode; | |
d62a17ae | 6353 | |
a14810f4 | 6354 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_PASSWORD)) |
d62a17ae | 6355 | return 0; |
6356 | ||
a14810f4 PM |
6357 | /* Inherit configuration from peer-group if peer is member. */ |
6358 | if (peer_group_active(peer)) { | |
6359 | peer_flag_inherit(peer, PEER_FLAG_PASSWORD); | |
6360 | PEER_STR_ATTR_INHERIT(peer, peer->group, password, | |
6361 | MTYPE_PEER_PASSWORD); | |
6362 | } else { | |
6363 | /* Otherwise remove flag and configuration from peer. */ | |
6364 | peer_flag_unset(peer, PEER_FLAG_PASSWORD); | |
6365 | XFREE(MTYPE_PEER_PASSWORD, peer->password); | |
6366 | } | |
6367 | ||
6368 | /* Check if handling a regular peer. */ | |
d62a17ae | 6369 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 6370 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 6371 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
6372 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
6373 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
6374 | else | |
6375 | bgp_session_reset(peer); | |
6376 | ||
a14810f4 | 6377 | /* Attempt to uninstall password on socket. */ |
d62a17ae | 6378 | if (!BGP_PEER_SU_UNSPEC(peer)) |
6379 | bgp_md5_unset(peer); | |
a14810f4 | 6380 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 6381 | return 0; |
6382 | } | |
6383 | ||
a14810f4 PM |
6384 | /* |
6385 | * Remove flag and configuration from all peer-group members, unless | |
f75b9163 | 6386 | * they are explicitly overriding peer-group configuration. |
a14810f4 PM |
6387 | */ |
6388 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6389 | /* Skip peers with overridden configuration. */ | |
6390 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_PASSWORD)) | |
d62a17ae | 6391 | continue; |
6392 | ||
a14810f4 PM |
6393 | /* Remove flag and configuration on peer-group member. */ |
6394 | UNSET_FLAG(member->flags, PEER_FLAG_PASSWORD); | |
6395 | XFREE(MTYPE_PEER_PASSWORD, member->password); | |
6396 | ||
6397 | /* Send notification or reset peer depending on state. */ | |
6398 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) | |
6399 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 6400 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
6401 | else | |
a14810f4 | 6402 | bgp_session_reset(member); |
d62a17ae | 6403 | |
a14810f4 PM |
6404 | /* Attempt to uninstall password on socket. */ |
6405 | if (!BGP_PEER_SU_UNSPEC(member)) | |
6406 | bgp_md5_unset(member); | |
d62a17ae | 6407 | } |
6408 | ||
9e7d9a61 QY |
6409 | /* Set flag and configuration on all peer-group listen ranges */ |
6410 | struct listnode *ln; | |
6411 | struct prefix *lr; | |
6412 | ||
6413 | for (ALL_LIST_ELEMENTS_RO(peer->group->listen_range[AFI_IP], ln, lr)) | |
a4faae3a | 6414 | bgp_md5_unset_prefix(peer->bgp, lr); |
9e7d9a61 | 6415 | for (ALL_LIST_ELEMENTS_RO(peer->group->listen_range[AFI_IP6], ln, lr)) |
a4faae3a | 6416 | bgp_md5_unset_prefix(peer->bgp, lr); |
9e7d9a61 | 6417 | |
d62a17ae | 6418 | return 0; |
6419 | } | |
6b0655a2 | 6420 | |
3f9c7369 | 6421 | |
718e3744 | 6422 | /* Set distribute list to the peer. */ |
d62a17ae | 6423 | int peer_distribute_set(struct peer *peer, afi_t afi, safi_t safi, int direct, |
6424 | const char *name) | |
6425 | { | |
70ee29b4 | 6426 | struct peer *member; |
d62a17ae | 6427 | struct bgp_filter *filter; |
d62a17ae | 6428 | struct listnode *node, *nnode; |
6429 | ||
6430 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
6431 | return BGP_ERR_INVALID_VALUE; | |
6432 | ||
70ee29b4 | 6433 | /* Set configuration on peer. */ |
d62a17ae | 6434 | filter = &peer->filter[afi][safi]; |
d62a17ae | 6435 | if (filter->plist[direct].name) |
6436 | return BGP_ERR_PEER_FILTER_CONFLICT; | |
d62a17ae | 6437 | if (filter->dlist[direct].name) |
6438 | XFREE(MTYPE_BGP_FILTER_NAME, filter->dlist[direct].name); | |
6439 | filter->dlist[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
6440 | filter->dlist[direct].alist = access_list_lookup(afi, name); | |
6441 | ||
70ee29b4 | 6442 | /* Check if handling a regular peer. */ |
d62a17ae | 6443 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
6444 | /* Set override-flag and process peer route updates. */ |
6445 | SET_FLAG(peer->filter_override[afi][safi][direct], | |
6446 | PEER_FT_DISTRIBUTE_LIST); | |
d62a17ae | 6447 | peer_on_policy_change(peer, afi, safi, |
6448 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
6449 | |
6450 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6451 | return 0; |
6452 | } | |
6453 | ||
70ee29b4 PM |
6454 | /* |
6455 | * Set configuration on all peer-group members, un less they are | |
f75b9163 | 6456 | * explicitly overriding peer-group configuration. |
70ee29b4 PM |
6457 | */ |
6458 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6459 | /* Skip peers with overridden configuration. */ | |
6460 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
6461 | PEER_FT_DISTRIBUTE_LIST)) | |
6462 | continue; | |
d62a17ae | 6463 | |
70ee29b4 PM |
6464 | /* Set configuration on peer-group member. */ |
6465 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6466 | if (filter->dlist[direct].name) |
6467 | XFREE(MTYPE_BGP_FILTER_NAME, | |
6468 | filter->dlist[direct].name); | |
6469 | filter->dlist[direct].name = | |
6470 | XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
6471 | filter->dlist[direct].alist = access_list_lookup(afi, name); | |
70ee29b4 PM |
6472 | |
6473 | /* Process peer route updates. */ | |
6474 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 6475 | (direct == FILTER_OUT) ? 1 : 0); |
6476 | } | |
6477 | ||
6478 | return 0; | |
6479 | } | |
6480 | ||
6481 | int peer_distribute_unset(struct peer *peer, afi_t afi, safi_t safi, int direct) | |
6482 | { | |
70ee29b4 | 6483 | struct peer *member; |
d62a17ae | 6484 | struct bgp_filter *filter; |
d62a17ae | 6485 | struct listnode *node, *nnode; |
6486 | ||
6487 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
6488 | return BGP_ERR_INVALID_VALUE; | |
6489 | ||
70ee29b4 PM |
6490 | /* Unset override-flag unconditionally. */ |
6491 | UNSET_FLAG(peer->filter_override[afi][safi][direct], | |
6492 | PEER_FT_DISTRIBUTE_LIST); | |
d62a17ae | 6493 | |
70ee29b4 | 6494 | /* Inherit configuration from peer-group if peer is member. */ |
d62a17ae | 6495 | if (peer_group_active(peer)) { |
e7103a96 PM |
6496 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
6497 | filter[afi][safi].dlist[direct].name, | |
6498 | MTYPE_BGP_FILTER_NAME); | |
6499 | PEER_ATTR_INHERIT(peer, peer->group, | |
6500 | filter[afi][safi].dlist[direct].alist); | |
70ee29b4 PM |
6501 | } else { |
6502 | /* Otherwise remove configuration from peer. */ | |
6503 | filter = &peer->filter[afi][safi]; | |
6504 | if (filter->dlist[direct].name) | |
6505 | XFREE(MTYPE_BGP_FILTER_NAME, | |
6506 | filter->dlist[direct].name); | |
6507 | filter->dlist[direct].name = NULL; | |
6508 | filter->dlist[direct].alist = NULL; | |
d62a17ae | 6509 | } |
6510 | ||
70ee29b4 | 6511 | /* Check if handling a regular peer. */ |
d62a17ae | 6512 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 6513 | /* Process peer route updates. */ |
d62a17ae | 6514 | peer_on_policy_change(peer, afi, safi, |
6515 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
6516 | |
6517 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6518 | return 0; |
6519 | } | |
6520 | ||
70ee29b4 PM |
6521 | /* |
6522 | * Remove configuration on all peer-group members, unless they are | |
f75b9163 | 6523 | * explicitly overriding peer-group configuration. |
70ee29b4 PM |
6524 | */ |
6525 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6526 | /* Skip peers with overridden configuration. */ | |
6527 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
6528 | PEER_FT_DISTRIBUTE_LIST)) | |
6529 | continue; | |
d62a17ae | 6530 | |
70ee29b4 PM |
6531 | /* Remove configuration on peer-group member. */ |
6532 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6533 | if (filter->dlist[direct].name) |
6534 | XFREE(MTYPE_BGP_FILTER_NAME, | |
6535 | filter->dlist[direct].name); | |
6536 | filter->dlist[direct].name = NULL; | |
6537 | filter->dlist[direct].alist = NULL; | |
70ee29b4 PM |
6538 | |
6539 | /* Process peer route updates. */ | |
6540 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 6541 | (direct == FILTER_OUT) ? 1 : 0); |
6542 | } | |
6543 | ||
6544 | return 0; | |
6545 | } | |
6546 | ||
6547 | /* Update distribute list. */ | |
6548 | static void peer_distribute_update(struct access_list *access) | |
6549 | { | |
6550 | afi_t afi; | |
6551 | safi_t safi; | |
6552 | int direct; | |
6553 | struct listnode *mnode, *mnnode; | |
6554 | struct listnode *node, *nnode; | |
6555 | struct bgp *bgp; | |
6556 | struct peer *peer; | |
6557 | struct peer_group *group; | |
6558 | struct bgp_filter *filter; | |
6559 | ||
6560 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
6561 | if (access->name) | |
b0a007df IR |
6562 | update_group_policy_update(bgp, |
6563 | BGP_POLICY_DISTRIBUTE_LIST, | |
f1aa4929 | 6564 | access->name, true, 0); |
d62a17ae | 6565 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { |
05c7a1cc QY |
6566 | FOREACH_AFI_SAFI (afi, safi) { |
6567 | filter = &peer->filter[afi][safi]; | |
6568 | ||
6569 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
6570 | direct++) { | |
6571 | if (filter->dlist[direct].name) | |
6572 | filter->dlist[direct] | |
6573 | .alist = access_list_lookup( | |
6574 | afi, | |
d62a17ae | 6575 | filter->dlist[direct] |
05c7a1cc QY |
6576 | .name); |
6577 | else | |
6578 | filter->dlist[direct].alist = | |
6579 | NULL; | |
d62a17ae | 6580 | } |
05c7a1cc | 6581 | } |
d62a17ae | 6582 | } |
6583 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
05c7a1cc QY |
6584 | FOREACH_AFI_SAFI (afi, safi) { |
6585 | filter = &group->conf->filter[afi][safi]; | |
6586 | ||
6587 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
6588 | direct++) { | |
6589 | if (filter->dlist[direct].name) | |
6590 | filter->dlist[direct] | |
6591 | .alist = access_list_lookup( | |
6592 | afi, | |
d62a17ae | 6593 | filter->dlist[direct] |
05c7a1cc QY |
6594 | .name); |
6595 | else | |
6596 | filter->dlist[direct].alist = | |
6597 | NULL; | |
d62a17ae | 6598 | } |
05c7a1cc | 6599 | } |
d62a17ae | 6600 | } |
49e5a4a0 | 6601 | #ifdef ENABLE_BGP_VNC |
d62a17ae | 6602 | vnc_prefix_list_update(bgp); |
6603 | #endif | |
6604 | } | |
6605 | } | |
6606 | ||
6607 | /* Set prefix list to the peer. */ | |
6608 | int peer_prefix_list_set(struct peer *peer, afi_t afi, safi_t safi, int direct, | |
6609 | const char *name) | |
6610 | { | |
70ee29b4 | 6611 | struct peer *member; |
d62a17ae | 6612 | struct bgp_filter *filter; |
d62a17ae | 6613 | struct listnode *node, *nnode; |
6614 | ||
6615 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
6616 | return BGP_ERR_INVALID_VALUE; | |
6617 | ||
70ee29b4 | 6618 | /* Set configuration on peer. */ |
d62a17ae | 6619 | filter = &peer->filter[afi][safi]; |
d62a17ae | 6620 | if (filter->dlist[direct].name) |
6621 | return BGP_ERR_PEER_FILTER_CONFLICT; | |
d62a17ae | 6622 | if (filter->plist[direct].name) |
6623 | XFREE(MTYPE_BGP_FILTER_NAME, filter->plist[direct].name); | |
6624 | filter->plist[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
6625 | filter->plist[direct].plist = prefix_list_lookup(afi, name); | |
6626 | ||
70ee29b4 | 6627 | /* Check if handling a regular peer. */ |
d62a17ae | 6628 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
6629 | /* Set override-flag and process peer route updates. */ |
6630 | SET_FLAG(peer->filter_override[afi][safi][direct], | |
6631 | PEER_FT_PREFIX_LIST); | |
d62a17ae | 6632 | peer_on_policy_change(peer, afi, safi, |
6633 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
6634 | |
6635 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6636 | return 0; |
6637 | } | |
6638 | ||
70ee29b4 PM |
6639 | /* |
6640 | * Set configuration on all peer-group members, unless they are | |
f75b9163 | 6641 | * explicitly overriding peer-group configuration. |
70ee29b4 PM |
6642 | */ |
6643 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6644 | /* Skip peers with overridden configuration. */ | |
6645 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
6646 | PEER_FT_PREFIX_LIST)) | |
6647 | continue; | |
d62a17ae | 6648 | |
70ee29b4 PM |
6649 | /* Set configuration on peer-group member. */ |
6650 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6651 | if (filter->plist[direct].name) |
6652 | XFREE(MTYPE_BGP_FILTER_NAME, | |
6653 | filter->plist[direct].name); | |
6654 | filter->plist[direct].name = | |
6655 | XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
6656 | filter->plist[direct].plist = prefix_list_lookup(afi, name); | |
70ee29b4 PM |
6657 | |
6658 | /* Process peer route updates. */ | |
6659 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 6660 | (direct == FILTER_OUT) ? 1 : 0); |
6661 | } | |
70ee29b4 | 6662 | |
d62a17ae | 6663 | return 0; |
6664 | } | |
6665 | ||
6666 | int peer_prefix_list_unset(struct peer *peer, afi_t afi, safi_t safi, | |
6667 | int direct) | |
6668 | { | |
70ee29b4 | 6669 | struct peer *member; |
d62a17ae | 6670 | struct bgp_filter *filter; |
d62a17ae | 6671 | struct listnode *node, *nnode; |
6672 | ||
6673 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
6674 | return BGP_ERR_INVALID_VALUE; | |
6675 | ||
70ee29b4 PM |
6676 | /* Unset override-flag unconditionally. */ |
6677 | UNSET_FLAG(peer->filter_override[afi][safi][direct], | |
6678 | PEER_FT_PREFIX_LIST); | |
d62a17ae | 6679 | |
70ee29b4 | 6680 | /* Inherit configuration from peer-group if peer is member. */ |
d62a17ae | 6681 | if (peer_group_active(peer)) { |
e7103a96 PM |
6682 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
6683 | filter[afi][safi].plist[direct].name, | |
6684 | MTYPE_BGP_FILTER_NAME); | |
6685 | PEER_ATTR_INHERIT(peer, peer->group, | |
6686 | filter[afi][safi].plist[direct].plist); | |
70ee29b4 PM |
6687 | } else { |
6688 | /* Otherwise remove configuration from peer. */ | |
6689 | filter = &peer->filter[afi][safi]; | |
6690 | if (filter->plist[direct].name) | |
6691 | XFREE(MTYPE_BGP_FILTER_NAME, | |
6692 | filter->plist[direct].name); | |
6693 | filter->plist[direct].name = NULL; | |
6694 | filter->plist[direct].plist = NULL; | |
d62a17ae | 6695 | } |
6696 | ||
70ee29b4 | 6697 | /* Check if handling a regular peer. */ |
d62a17ae | 6698 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 6699 | /* Process peer route updates. */ |
d62a17ae | 6700 | peer_on_policy_change(peer, afi, safi, |
6701 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
6702 | |
6703 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6704 | return 0; |
6705 | } | |
6706 | ||
70ee29b4 PM |
6707 | /* |
6708 | * Remove configuration on all peer-group members, unless they are | |
f75b9163 | 6709 | * explicitly overriding peer-group configuration. |
70ee29b4 PM |
6710 | */ |
6711 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6712 | /* Skip peers with overridden configuration. */ | |
6713 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
6714 | PEER_FT_PREFIX_LIST)) | |
6715 | continue; | |
d62a17ae | 6716 | |
70ee29b4 PM |
6717 | /* Remove configuration on peer-group member. */ |
6718 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6719 | if (filter->plist[direct].name) |
6720 | XFREE(MTYPE_BGP_FILTER_NAME, | |
6721 | filter->plist[direct].name); | |
6722 | filter->plist[direct].name = NULL; | |
6723 | filter->plist[direct].plist = NULL; | |
70ee29b4 PM |
6724 | |
6725 | /* Process peer route updates. */ | |
6726 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 6727 | (direct == FILTER_OUT) ? 1 : 0); |
6728 | } | |
6729 | ||
6730 | return 0; | |
6731 | } | |
6732 | ||
6733 | /* Update prefix-list list. */ | |
6734 | static void peer_prefix_list_update(struct prefix_list *plist) | |
6735 | { | |
6736 | struct listnode *mnode, *mnnode; | |
6737 | struct listnode *node, *nnode; | |
6738 | struct bgp *bgp; | |
6739 | struct peer *peer; | |
6740 | struct peer_group *group; | |
6741 | struct bgp_filter *filter; | |
6742 | afi_t afi; | |
6743 | safi_t safi; | |
6744 | int direct; | |
6745 | ||
6746 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
6747 | ||
6748 | /* | |
6749 | * Update the prefix-list on update groups. | |
6750 | */ | |
6751 | update_group_policy_update( | |
6752 | bgp, BGP_POLICY_PREFIX_LIST, | |
f1aa4929 | 6753 | plist ? prefix_list_name(plist) : NULL, true, 0); |
d62a17ae | 6754 | |
6755 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
05c7a1cc QY |
6756 | FOREACH_AFI_SAFI (afi, safi) { |
6757 | filter = &peer->filter[afi][safi]; | |
6758 | ||
6759 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
6760 | direct++) { | |
6761 | if (filter->plist[direct].name) | |
6762 | filter->plist[direct] | |
6763 | .plist = prefix_list_lookup( | |
6764 | afi, | |
d62a17ae | 6765 | filter->plist[direct] |
05c7a1cc QY |
6766 | .name); |
6767 | else | |
6768 | filter->plist[direct].plist = | |
6769 | NULL; | |
d62a17ae | 6770 | } |
f1aa4929 DA |
6771 | |
6772 | /* If we touch prefix-list, we need to process | |
6773 | * new updates. This is important for ORF to | |
6774 | * work correctly as well. | |
6775 | */ | |
6776 | if (peer->afc_nego[afi][safi]) | |
6777 | peer_on_policy_change(peer, afi, safi, | |
6778 | 0); | |
05c7a1cc | 6779 | } |
d62a17ae | 6780 | } |
6781 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
05c7a1cc QY |
6782 | FOREACH_AFI_SAFI (afi, safi) { |
6783 | filter = &group->conf->filter[afi][safi]; | |
6784 | ||
6785 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
6786 | direct++) { | |
6787 | if (filter->plist[direct].name) | |
6788 | filter->plist[direct] | |
6789 | .plist = prefix_list_lookup( | |
6790 | afi, | |
d62a17ae | 6791 | filter->plist[direct] |
05c7a1cc QY |
6792 | .name); |
6793 | else | |
6794 | filter->plist[direct].plist = | |
6795 | NULL; | |
d62a17ae | 6796 | } |
05c7a1cc | 6797 | } |
d62a17ae | 6798 | } |
6799 | } | |
6800 | } | |
6801 | ||
6802 | int peer_aslist_set(struct peer *peer, afi_t afi, safi_t safi, int direct, | |
6803 | const char *name) | |
6804 | { | |
70ee29b4 | 6805 | struct peer *member; |
d62a17ae | 6806 | struct bgp_filter *filter; |
d62a17ae | 6807 | struct listnode *node, *nnode; |
6808 | ||
6809 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
6810 | return BGP_ERR_INVALID_VALUE; | |
6811 | ||
70ee29b4 | 6812 | /* Set configuration on peer. */ |
d62a17ae | 6813 | filter = &peer->filter[afi][safi]; |
d62a17ae | 6814 | if (filter->aslist[direct].name) |
6815 | XFREE(MTYPE_BGP_FILTER_NAME, filter->aslist[direct].name); | |
6816 | filter->aslist[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
6817 | filter->aslist[direct].aslist = as_list_lookup(name); | |
6818 | ||
70ee29b4 | 6819 | /* Check if handling a regular peer. */ |
d62a17ae | 6820 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
6821 | /* Set override-flag and process peer route updates. */ |
6822 | SET_FLAG(peer->filter_override[afi][safi][direct], | |
6823 | PEER_FT_FILTER_LIST); | |
d62a17ae | 6824 | peer_on_policy_change(peer, afi, safi, |
6825 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
6826 | |
6827 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6828 | return 0; |
6829 | } | |
6830 | ||
70ee29b4 PM |
6831 | /* |
6832 | * Set configuration on all peer-group members, unless they are | |
f75b9163 | 6833 | * explicitly overriding peer-group configuration. |
70ee29b4 PM |
6834 | */ |
6835 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6836 | /* Skip peers with overridden configuration. */ | |
6837 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
6838 | PEER_FT_FILTER_LIST)) | |
6839 | continue; | |
d62a17ae | 6840 | |
70ee29b4 PM |
6841 | /* Set configuration on peer-group member. */ |
6842 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6843 | if (filter->aslist[direct].name) |
6844 | XFREE(MTYPE_BGP_FILTER_NAME, | |
6845 | filter->aslist[direct].name); | |
6846 | filter->aslist[direct].name = | |
6847 | XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
6848 | filter->aslist[direct].aslist = as_list_lookup(name); | |
70ee29b4 PM |
6849 | |
6850 | /* Process peer route updates. */ | |
6851 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 6852 | (direct == FILTER_OUT) ? 1 : 0); |
6853 | } | |
70ee29b4 | 6854 | |
d62a17ae | 6855 | return 0; |
6856 | } | |
6857 | ||
6858 | int peer_aslist_unset(struct peer *peer, afi_t afi, safi_t safi, int direct) | |
6859 | { | |
70ee29b4 | 6860 | struct peer *member; |
d62a17ae | 6861 | struct bgp_filter *filter; |
d62a17ae | 6862 | struct listnode *node, *nnode; |
6863 | ||
6864 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
6865 | return BGP_ERR_INVALID_VALUE; | |
6866 | ||
70ee29b4 PM |
6867 | /* Unset override-flag unconditionally. */ |
6868 | UNSET_FLAG(peer->filter_override[afi][safi][direct], | |
6869 | PEER_FT_FILTER_LIST); | |
d62a17ae | 6870 | |
70ee29b4 | 6871 | /* Inherit configuration from peer-group if peer is member. */ |
d62a17ae | 6872 | if (peer_group_active(peer)) { |
e7103a96 PM |
6873 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
6874 | filter[afi][safi].aslist[direct].name, | |
6875 | MTYPE_BGP_FILTER_NAME); | |
6876 | PEER_ATTR_INHERIT(peer, peer->group, | |
70ee29b4 PM |
6877 | filter[afi][safi].aslist[direct].aslist); |
6878 | } else { | |
6879 | /* Otherwise remove configuration from peer. */ | |
6880 | filter = &peer->filter[afi][safi]; | |
6881 | if (filter->aslist[direct].name) | |
6882 | XFREE(MTYPE_BGP_FILTER_NAME, | |
6883 | filter->aslist[direct].name); | |
6884 | filter->aslist[direct].name = NULL; | |
6885 | filter->aslist[direct].aslist = NULL; | |
d62a17ae | 6886 | } |
6887 | ||
70ee29b4 | 6888 | /* Check if handling a regular peer. */ |
d62a17ae | 6889 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 6890 | /* Process peer route updates. */ |
d62a17ae | 6891 | peer_on_policy_change(peer, afi, safi, |
6892 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
6893 | |
6894 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6895 | return 0; |
6896 | } | |
6897 | ||
70ee29b4 PM |
6898 | /* |
6899 | * Remove configuration on all peer-group members, unless they are | |
f75b9163 | 6900 | * explicitly overriding peer-group configuration. |
70ee29b4 PM |
6901 | */ |
6902 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6903 | /* Skip peers with overridden configuration. */ | |
6904 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
6905 | PEER_FT_FILTER_LIST)) | |
6906 | continue; | |
d62a17ae | 6907 | |
70ee29b4 PM |
6908 | /* Remove configuration on peer-group member. */ |
6909 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6910 | if (filter->aslist[direct].name) |
6911 | XFREE(MTYPE_BGP_FILTER_NAME, | |
6912 | filter->aslist[direct].name); | |
6913 | filter->aslist[direct].name = NULL; | |
6914 | filter->aslist[direct].aslist = NULL; | |
70ee29b4 PM |
6915 | |
6916 | /* Process peer route updates. */ | |
6917 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 6918 | (direct == FILTER_OUT) ? 1 : 0); |
6919 | } | |
6920 | ||
6921 | return 0; | |
6922 | } | |
6923 | ||
6924 | static void peer_aslist_update(const char *aslist_name) | |
6925 | { | |
6926 | afi_t afi; | |
6927 | safi_t safi; | |
6928 | int direct; | |
6929 | struct listnode *mnode, *mnnode; | |
6930 | struct listnode *node, *nnode; | |
6931 | struct bgp *bgp; | |
6932 | struct peer *peer; | |
6933 | struct peer_group *group; | |
6934 | struct bgp_filter *filter; | |
6935 | ||
6936 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
6937 | update_group_policy_update(bgp, BGP_POLICY_FILTER_LIST, | |
f1aa4929 | 6938 | aslist_name, true, 0); |
d62a17ae | 6939 | |
6940 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
05c7a1cc QY |
6941 | FOREACH_AFI_SAFI (afi, safi) { |
6942 | filter = &peer->filter[afi][safi]; | |
6943 | ||
6944 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
6945 | direct++) { | |
6946 | if (filter->aslist[direct].name) | |
6947 | filter->aslist[direct] | |
6948 | .aslist = as_list_lookup( | |
d62a17ae | 6949 | filter->aslist[direct] |
05c7a1cc QY |
6950 | .name); |
6951 | else | |
6952 | filter->aslist[direct].aslist = | |
6953 | NULL; | |
d62a17ae | 6954 | } |
05c7a1cc | 6955 | } |
d62a17ae | 6956 | } |
6957 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
05c7a1cc QY |
6958 | FOREACH_AFI_SAFI (afi, safi) { |
6959 | filter = &group->conf->filter[afi][safi]; | |
6960 | ||
6961 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
6962 | direct++) { | |
6963 | if (filter->aslist[direct].name) | |
6964 | filter->aslist[direct] | |
6965 | .aslist = as_list_lookup( | |
d62a17ae | 6966 | filter->aslist[direct] |
05c7a1cc QY |
6967 | .name); |
6968 | else | |
6969 | filter->aslist[direct].aslist = | |
6970 | NULL; | |
d62a17ae | 6971 | } |
05c7a1cc | 6972 | } |
d62a17ae | 6973 | } |
6974 | } | |
6975 | } | |
6976 | ||
6977 | static void peer_aslist_add(char *aslist_name) | |
6978 | { | |
6979 | peer_aslist_update(aslist_name); | |
c4efd0f4 | 6980 | route_map_notify_dependencies(aslist_name, RMAP_EVENT_ASLIST_ADDED); |
d62a17ae | 6981 | } |
6982 | ||
6983 | static void peer_aslist_del(const char *aslist_name) | |
6984 | { | |
6985 | peer_aslist_update(aslist_name); | |
6986 | route_map_notify_dependencies(aslist_name, RMAP_EVENT_ASLIST_DELETED); | |
6987 | } | |
6988 | ||
6989 | ||
6990 | int peer_route_map_set(struct peer *peer, afi_t afi, safi_t safi, int direct, | |
1de27621 | 6991 | const char *name, struct route_map *route_map) |
d62a17ae | 6992 | { |
70ee29b4 | 6993 | struct peer *member; |
d62a17ae | 6994 | struct bgp_filter *filter; |
d62a17ae | 6995 | struct listnode *node, *nnode; |
6996 | ||
6997 | if (direct != RMAP_IN && direct != RMAP_OUT) | |
6998 | return BGP_ERR_INVALID_VALUE; | |
6999 | ||
70ee29b4 | 7000 | /* Set configuration on peer. */ |
d62a17ae | 7001 | filter = &peer->filter[afi][safi]; |
6c3247bd NT |
7002 | if (filter->map[direct].name) { |
7003 | /* If the neighbor is configured with the same route-map | |
7004 | * again then, ignore the duplicate configuration. | |
7005 | */ | |
7006 | if (strcmp(filter->map[direct].name, name) == 0) | |
7007 | return 0; | |
7008 | ||
d62a17ae | 7009 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); |
6c3247bd | 7010 | } |
b4897fa5 | 7011 | route_map_counter_decrement(filter->map[direct].map); |
d62a17ae | 7012 | filter->map[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); |
1de27621 | 7013 | filter->map[direct].map = route_map; |
b4897fa5 | 7014 | route_map_counter_increment(route_map); |
d62a17ae | 7015 | |
70ee29b4 | 7016 | /* Check if handling a regular peer. */ |
d62a17ae | 7017 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
7018 | /* Set override-flag and process peer route updates. */ |
7019 | SET_FLAG(peer->filter_override[afi][safi][direct], | |
7020 | PEER_FT_ROUTE_MAP); | |
d62a17ae | 7021 | peer_on_policy_change(peer, afi, safi, |
7022 | (direct == RMAP_OUT) ? 1 : 0); | |
70ee29b4 PM |
7023 | |
7024 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 7025 | return 0; |
7026 | } | |
7027 | ||
70ee29b4 PM |
7028 | /* |
7029 | * Set configuration on all peer-group members, unless they are | |
f75b9163 | 7030 | * explicitly overriding peer-group configuration. |
70ee29b4 PM |
7031 | */ |
7032 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
7033 | /* Skip peers with overridden configuration. */ | |
7034 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
7035 | PEER_FT_ROUTE_MAP)) | |
7036 | continue; | |
d62a17ae | 7037 | |
70ee29b4 PM |
7038 | /* Set configuration on peer-group member. */ |
7039 | filter = &member->filter[afi][safi]; | |
d62a17ae | 7040 | if (filter->map[direct].name) |
7041 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); | |
b4897fa5 | 7042 | route_map_counter_decrement(filter->map[direct].map); |
d62a17ae | 7043 | filter->map[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); |
1de27621 | 7044 | filter->map[direct].map = route_map; |
b4897fa5 | 7045 | route_map_counter_increment(route_map); |
70ee29b4 PM |
7046 | |
7047 | /* Process peer route updates. */ | |
7048 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 7049 | (direct == RMAP_OUT) ? 1 : 0); |
7050 | } | |
7051 | return 0; | |
7052 | } | |
7053 | ||
7054 | /* Unset route-map from the peer. */ | |
7055 | int peer_route_map_unset(struct peer *peer, afi_t afi, safi_t safi, int direct) | |
7056 | { | |
70ee29b4 | 7057 | struct peer *member; |
d62a17ae | 7058 | struct bgp_filter *filter; |
d62a17ae | 7059 | struct listnode *node, *nnode; |
7060 | ||
7061 | if (direct != RMAP_IN && direct != RMAP_OUT) | |
7062 | return BGP_ERR_INVALID_VALUE; | |
7063 | ||
70ee29b4 PM |
7064 | /* Unset override-flag unconditionally. */ |
7065 | UNSET_FLAG(peer->filter_override[afi][safi][direct], PEER_FT_ROUTE_MAP); | |
d62a17ae | 7066 | |
70ee29b4 | 7067 | /* Inherit configuration from peer-group if peer is member. */ |
d62a17ae | 7068 | if (peer_group_active(peer)) { |
e7103a96 PM |
7069 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
7070 | filter[afi][safi].map[direct].name, | |
7071 | MTYPE_BGP_FILTER_NAME); | |
7072 | PEER_ATTR_INHERIT(peer, peer->group, | |
7073 | filter[afi][safi].map[direct].map); | |
70ee29b4 PM |
7074 | } else { |
7075 | /* Otherwise remove configuration from peer. */ | |
7076 | filter = &peer->filter[afi][safi]; | |
7077 | if (filter->map[direct].name) | |
7078 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); | |
b4897fa5 | 7079 | route_map_counter_decrement(filter->map[direct].map); |
70ee29b4 PM |
7080 | filter->map[direct].name = NULL; |
7081 | filter->map[direct].map = NULL; | |
d62a17ae | 7082 | } |
7083 | ||
70ee29b4 | 7084 | /* Check if handling a regular peer. */ |
d62a17ae | 7085 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 7086 | /* Process peer route updates. */ |
d62a17ae | 7087 | peer_on_policy_change(peer, afi, safi, |
7088 | (direct == RMAP_OUT) ? 1 : 0); | |
70ee29b4 PM |
7089 | |
7090 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 7091 | return 0; |
7092 | } | |
7093 | ||
70ee29b4 PM |
7094 | /* |
7095 | * Remove configuration on all peer-group members, unless they are | |
f75b9163 | 7096 | * explicitly overriding peer-group configuration. |
70ee29b4 PM |
7097 | */ |
7098 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
7099 | /* Skip peers with overridden configuration. */ | |
7100 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
7101 | PEER_FT_ROUTE_MAP)) | |
7102 | continue; | |
d62a17ae | 7103 | |
70ee29b4 PM |
7104 | /* Remove configuration on peer-group member. */ |
7105 | filter = &member->filter[afi][safi]; | |
d62a17ae | 7106 | if (filter->map[direct].name) |
7107 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); | |
b4897fa5 | 7108 | route_map_counter_decrement(filter->map[direct].map); |
d62a17ae | 7109 | filter->map[direct].name = NULL; |
7110 | filter->map[direct].map = NULL; | |
70ee29b4 PM |
7111 | |
7112 | /* Process peer route updates. */ | |
7113 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 7114 | (direct == RMAP_OUT) ? 1 : 0); |
7115 | } | |
70ee29b4 | 7116 | |
d62a17ae | 7117 | return 0; |
7118 | } | |
7119 | ||
7120 | /* Set unsuppress-map to the peer. */ | |
7121 | int peer_unsuppress_map_set(struct peer *peer, afi_t afi, safi_t safi, | |
1de27621 | 7122 | const char *name, struct route_map *route_map) |
d62a17ae | 7123 | { |
70ee29b4 | 7124 | struct peer *member; |
d62a17ae | 7125 | struct bgp_filter *filter; |
d62a17ae | 7126 | struct listnode *node, *nnode; |
7127 | ||
70ee29b4 | 7128 | /* Set configuration on peer. */ |
d62a17ae | 7129 | filter = &peer->filter[afi][safi]; |
d62a17ae | 7130 | if (filter->usmap.name) |
7131 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
b4897fa5 | 7132 | route_map_counter_decrement(filter->usmap.map); |
d62a17ae | 7133 | filter->usmap.name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); |
1de27621 | 7134 | filter->usmap.map = route_map; |
b4897fa5 | 7135 | route_map_counter_increment(route_map); |
d62a17ae | 7136 | |
70ee29b4 | 7137 | /* Check if handling a regular peer. */ |
d62a17ae | 7138 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
7139 | /* Set override-flag and process peer route updates. */ |
7140 | SET_FLAG(peer->filter_override[afi][safi][0], | |
7141 | PEER_FT_UNSUPPRESS_MAP); | |
d62a17ae | 7142 | peer_on_policy_change(peer, afi, safi, 1); |
70ee29b4 PM |
7143 | |
7144 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 7145 | return 0; |
7146 | } | |
7147 | ||
70ee29b4 PM |
7148 | /* |
7149 | * Set configuration on all peer-group members, unless they are | |
f75b9163 | 7150 | * explicitly overriding peer-group configuration. |
70ee29b4 PM |
7151 | */ |
7152 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
7153 | /* Skip peers with overridden configuration. */ | |
246bb5f0 | 7154 | if (CHECK_FLAG(member->filter_override[afi][safi][0], |
70ee29b4 PM |
7155 | PEER_FT_UNSUPPRESS_MAP)) |
7156 | continue; | |
d62a17ae | 7157 | |
70ee29b4 PM |
7158 | /* Set configuration on peer-group member. */ |
7159 | filter = &member->filter[afi][safi]; | |
d62a17ae | 7160 | if (filter->usmap.name) |
7161 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
b4897fa5 | 7162 | route_map_counter_decrement(filter->usmap.map); |
d62a17ae | 7163 | filter->usmap.name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); |
1de27621 | 7164 | filter->usmap.map = route_map; |
b4897fa5 | 7165 | route_map_counter_increment(route_map); |
70ee29b4 PM |
7166 | |
7167 | /* Process peer route updates. */ | |
7168 | peer_on_policy_change(member, afi, safi, 1); | |
d62a17ae | 7169 | } |
70ee29b4 | 7170 | |
d62a17ae | 7171 | return 0; |
7172 | } | |
7173 | ||
7174 | /* Unset route-map from the peer. */ | |
7175 | int peer_unsuppress_map_unset(struct peer *peer, afi_t afi, safi_t safi) | |
718e3744 | 7176 | { |
70ee29b4 | 7177 | struct peer *member; |
d62a17ae | 7178 | struct bgp_filter *filter; |
d62a17ae | 7179 | struct listnode *node, *nnode; |
7180 | ||
70ee29b4 PM |
7181 | /* Unset override-flag unconditionally. */ |
7182 | UNSET_FLAG(peer->filter_override[afi][safi][0], PEER_FT_UNSUPPRESS_MAP); | |
718e3744 | 7183 | |
70ee29b4 PM |
7184 | /* Inherit configuration from peer-group if peer is member. */ |
7185 | if (peer_group_active(peer)) { | |
e7103a96 PM |
7186 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
7187 | filter[afi][safi].usmap.name, | |
7188 | MTYPE_BGP_FILTER_NAME); | |
7189 | PEER_ATTR_INHERIT(peer, peer->group, | |
7190 | filter[afi][safi].usmap.map); | |
70ee29b4 PM |
7191 | } else { |
7192 | /* Otherwise remove configuration from peer. */ | |
7193 | filter = &peer->filter[afi][safi]; | |
7194 | if (filter->usmap.name) | |
7195 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
b4897fa5 | 7196 | route_map_counter_decrement(filter->usmap.map); |
70ee29b4 PM |
7197 | filter->usmap.name = NULL; |
7198 | filter->usmap.map = NULL; | |
7199 | } | |
718e3744 | 7200 | |
70ee29b4 | 7201 | /* Check if handling a regular peer. */ |
d62a17ae | 7202 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 7203 | /* Process peer route updates. */ |
d62a17ae | 7204 | peer_on_policy_change(peer, afi, safi, 1); |
70ee29b4 PM |
7205 | |
7206 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 7207 | return 0; |
7208 | } | |
718e3744 | 7209 | |
70ee29b4 PM |
7210 | /* |
7211 | * Remove configuration on all peer-group members, unless they are | |
f75b9163 | 7212 | * explicitly overriding peer-group configuration. |
70ee29b4 PM |
7213 | */ |
7214 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
7215 | /* Skip peers with overridden configuration. */ | |
7216 | if (CHECK_FLAG(member->filter_override[afi][safi][0], | |
7217 | PEER_FT_UNSUPPRESS_MAP)) | |
7218 | continue; | |
718e3744 | 7219 | |
70ee29b4 PM |
7220 | /* Remove configuration on peer-group member. */ |
7221 | filter = &member->filter[afi][safi]; | |
d62a17ae | 7222 | if (filter->usmap.name) |
7223 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
b4897fa5 | 7224 | route_map_counter_decrement(filter->usmap.map); |
d62a17ae | 7225 | filter->usmap.name = NULL; |
7226 | filter->usmap.map = NULL; | |
70ee29b4 PM |
7227 | |
7228 | /* Process peer route updates. */ | |
7229 | peer_on_policy_change(member, afi, safi, 1); | |
d62a17ae | 7230 | } |
70ee29b4 | 7231 | |
d62a17ae | 7232 | return 0; |
7233 | } | |
718e3744 | 7234 | |
ac4522e6 DM |
7235 | static bool peer_maximum_prefix_clear_overflow(struct peer *peer) |
7236 | { | |
7237 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_PREFIX_OVERFLOW)) | |
7238 | return false; | |
7239 | ||
7240 | UNSET_FLAG(peer->sflags, PEER_STATUS_PREFIX_OVERFLOW); | |
7241 | if (peer->t_pmax_restart) { | |
fa5806c3 | 7242 | THREAD_OFF(peer->t_pmax_restart); |
ac4522e6 | 7243 | if (bgp_debug_neighbor_events(peer)) |
a7d91a8c | 7244 | zlog_debug( |
f70c91dc DA |
7245 | "%pBP Maximum-prefix restart timer cancelled", |
7246 | peer); | |
ac4522e6 DM |
7247 | } |
7248 | BGP_EVENT_ADD(peer, BGP_Start); | |
7249 | return true; | |
7250 | } | |
7251 | ||
d62a17ae | 7252 | int peer_maximum_prefix_set(struct peer *peer, afi_t afi, safi_t safi, |
d7c0a89a | 7253 | uint32_t max, uint8_t threshold, int warning, |
9cbd06e0 | 7254 | uint16_t restart, bool force) |
d62a17ae | 7255 | { |
598ce6bd | 7256 | struct peer *member; |
d62a17ae | 7257 | struct listnode *node, *nnode; |
7258 | ||
598ce6bd PM |
7259 | /* Set flags and configuration on peer. */ |
7260 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_MAX_PREFIX); | |
9cbd06e0 DA |
7261 | |
7262 | if (force) | |
7263 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_MAX_PREFIX_FORCE); | |
7264 | else | |
7265 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_MAX_PREFIX_FORCE); | |
7266 | ||
d62a17ae | 7267 | if (warning) |
598ce6bd | 7268 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_MAX_PREFIX_WARNING); |
d62a17ae | 7269 | else |
598ce6bd PM |
7270 | peer_af_flag_unset(peer, afi, safi, |
7271 | PEER_FLAG_MAX_PREFIX_WARNING); | |
7272 | ||
04e1c5bb QY |
7273 | peer->pmax[afi][safi] = max; |
7274 | peer->pmax_threshold[afi][safi] = threshold; | |
7275 | peer->pmax_restart[afi][safi] = restart; | |
d62a17ae | 7276 | |
598ce6bd PM |
7277 | /* Check if handling a regular peer. */ |
7278 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
7279 | /* Re-check if peer violates maximum-prefix. */ | |
feb17238 | 7280 | if ((peer_established(peer)) && (peer->afc[afi][safi])) |
d62a17ae | 7281 | bgp_maximum_prefix_overflow(peer, afi, safi, 1); |
04e1c5bb | 7282 | |
598ce6bd PM |
7283 | /* Skip peer-group mechanics for regular peers. */ |
7284 | return 0; | |
7285 | } | |
04e1c5bb | 7286 | |
598ce6bd PM |
7287 | /* |
7288 | * Set flags and configuration on all peer-group members, unless they | |
f75b9163 | 7289 | * are explicitly overriding peer-group configuration. |
598ce6bd PM |
7290 | */ |
7291 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
7292 | /* Skip peers with overridden configuration. */ | |
7293 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
7294 | PEER_FLAG_MAX_PREFIX)) | |
7295 | continue; | |
04e1c5bb | 7296 | |
598ce6bd PM |
7297 | /* Set flag and configuration on peer-group member. */ |
7298 | member->pmax[afi][safi] = max; | |
7299 | member->pmax_threshold[afi][safi] = threshold; | |
7300 | member->pmax_restart[afi][safi] = restart; | |
9cbd06e0 DA |
7301 | |
7302 | if (force) | |
7303 | SET_FLAG(member->af_flags[afi][safi], | |
7304 | PEER_FLAG_MAX_PREFIX_FORCE); | |
7305 | else | |
7306 | UNSET_FLAG(member->af_flags[afi][safi], | |
7307 | PEER_FLAG_MAX_PREFIX_FORCE); | |
7308 | ||
04e1c5bb | 7309 | if (warning) |
598ce6bd | 7310 | SET_FLAG(member->af_flags[afi][safi], |
04e1c5bb QY |
7311 | PEER_FLAG_MAX_PREFIX_WARNING); |
7312 | else | |
598ce6bd | 7313 | UNSET_FLAG(member->af_flags[afi][safi], |
04e1c5bb | 7314 | PEER_FLAG_MAX_PREFIX_WARNING); |
598ce6bd PM |
7315 | |
7316 | /* Re-check if peer violates maximum-prefix. */ | |
feb17238 | 7317 | if ((peer_established(member)) && (member->afc[afi][safi])) |
598ce6bd | 7318 | bgp_maximum_prefix_overflow(member, afi, safi, 1); |
d62a17ae | 7319 | } |
718e3744 | 7320 | |
d62a17ae | 7321 | return 0; |
7322 | } | |
718e3744 | 7323 | |
d62a17ae | 7324 | int peer_maximum_prefix_unset(struct peer *peer, afi_t afi, safi_t safi) |
7325 | { | |
598ce6bd PM |
7326 | /* Inherit configuration from peer-group if peer is member. */ |
7327 | if (peer_group_active(peer)) { | |
7328 | peer_af_flag_inherit(peer, afi, safi, PEER_FLAG_MAX_PREFIX); | |
9cbd06e0 DA |
7329 | peer_af_flag_inherit(peer, afi, safi, |
7330 | PEER_FLAG_MAX_PREFIX_FORCE); | |
598ce6bd PM |
7331 | peer_af_flag_inherit(peer, afi, safi, |
7332 | PEER_FLAG_MAX_PREFIX_WARNING); | |
e7103a96 PM |
7333 | PEER_ATTR_INHERIT(peer, peer->group, pmax[afi][safi]); |
7334 | PEER_ATTR_INHERIT(peer, peer->group, pmax_threshold[afi][safi]); | |
7335 | PEER_ATTR_INHERIT(peer, peer->group, pmax_restart[afi][safi]); | |
04e1c5bb | 7336 | |
d62a17ae | 7337 | return 0; |
04e1c5bb | 7338 | } |
d62a17ae | 7339 | |
598ce6bd PM |
7340 | /* Remove flags and configuration from peer. */ |
7341 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_MAX_PREFIX); | |
9cbd06e0 | 7342 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_MAX_PREFIX_FORCE); |
598ce6bd PM |
7343 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_MAX_PREFIX_WARNING); |
7344 | peer->pmax[afi][safi] = 0; | |
7345 | peer->pmax_threshold[afi][safi] = 0; | |
7346 | peer->pmax_restart[afi][safi] = 0; | |
7347 | ||
04e1c5bb | 7348 | /* |
598ce6bd | 7349 | * Remove flags and configuration from all peer-group members, unless |
f75b9163 | 7350 | * they are explicitly overriding peer-group configuration. |
04e1c5bb | 7351 | */ |
6282637d RW |
7352 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
7353 | struct peer *member; | |
7354 | struct listnode *node; | |
598ce6bd | 7355 | |
6282637d RW |
7356 | for (ALL_LIST_ELEMENTS_RO(peer->group->peer, node, member)) { |
7357 | /* Skip peers with overridden configuration. */ | |
7358 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
7359 | PEER_FLAG_MAX_PREFIX)) | |
7360 | continue; | |
7361 | ||
7362 | /* Remove flag and configuration on peer-group member. | |
7363 | */ | |
7364 | UNSET_FLAG(member->af_flags[afi][safi], | |
7365 | PEER_FLAG_MAX_PREFIX); | |
9cbd06e0 DA |
7366 | UNSET_FLAG(member->af_flags[afi][safi], |
7367 | PEER_FLAG_MAX_PREFIX_FORCE); | |
6282637d RW |
7368 | UNSET_FLAG(member->af_flags[afi][safi], |
7369 | PEER_FLAG_MAX_PREFIX_WARNING); | |
7370 | member->pmax[afi][safi] = 0; | |
7371 | member->pmax_threshold[afi][safi] = 0; | |
7372 | member->pmax_restart[afi][safi] = 0; | |
ac4522e6 DM |
7373 | |
7374 | peer_maximum_prefix_clear_overflow(member); | |
6282637d | 7375 | } |
ac4522e6 DM |
7376 | } else { |
7377 | peer_maximum_prefix_clear_overflow(peer); | |
d62a17ae | 7378 | } |
598ce6bd | 7379 | |
d62a17ae | 7380 | return 0; |
718e3744 | 7381 | } |
7382 | ||
d0bf49ec LS |
7383 | void peer_maximum_prefix_out_refresh_routes(struct peer *peer, afi_t afi, |
7384 | safi_t safi) | |
7385 | { | |
7386 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
7387 | ||
7388 | if (peer_established(peer)) | |
7389 | bgp_announce_route(peer, afi, safi, false); | |
7390 | } | |
7391 | ||
80444d30 LS |
7392 | int peer_maximum_prefix_out_set(struct peer *peer, afi_t afi, safi_t safi, |
7393 | uint32_t max) | |
7394 | { | |
7395 | struct peer *member; | |
7396 | struct listnode *node, *nnode; | |
7397 | ||
7398 | /* Set flag on peer and peer-group member if any */ | |
7399 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_MAX_PREFIX_OUT); | |
7400 | /* Set configuration on peer. */ | |
7401 | peer->pmax_out[afi][safi] = max; | |
7402 | ||
7403 | /* Check if handling a regular peer. */ | |
7404 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
7405 | /* Skip peer-group mechanics for regular peers. */ | |
7406 | peer_maximum_prefix_out_refresh_routes(peer, afi, safi); | |
7407 | return 0; | |
7408 | } | |
7409 | ||
7410 | /* | |
7411 | * Set flag and configuration on all peer-group members, unless they | |
f75b9163 | 7412 | * are explicitly overriding peer-group configuration. |
80444d30 LS |
7413 | */ |
7414 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
7415 | /* Skip peers with overridden configuration. */ | |
7416 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
7417 | PEER_FLAG_MAX_PREFIX_OUT)) | |
7418 | continue; | |
7419 | ||
7420 | /* Set configuration on peer-group member. */ | |
7421 | member->pmax_out[afi][safi] = max; | |
7422 | ||
7423 | peer_maximum_prefix_out_refresh_routes(member, afi, safi); | |
7424 | } | |
7425 | return 0; | |
7426 | } | |
7427 | ||
7428 | int peer_maximum_prefix_out_unset(struct peer *peer, afi_t afi, safi_t safi) | |
7429 | { | |
7430 | struct peer *member; | |
7431 | struct listnode *node; | |
7432 | /* Inherit configuration from peer-group if peer is member. */ | |
7433 | if (peer_group_active(peer)) { | |
7434 | peer_af_flag_inherit(peer, afi, safi, PEER_FLAG_MAX_PREFIX_OUT); | |
7435 | PEER_ATTR_INHERIT(peer, peer->group, pmax_out[afi][safi]); | |
7436 | ||
7437 | peer_maximum_prefix_out_refresh_routes(peer, afi, safi); | |
7438 | return 0; | |
7439 | } | |
7440 | ||
7441 | /* Remove flag and configuration from peer. */ | |
7442 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_MAX_PREFIX_OUT); | |
7443 | peer->pmax_out[afi][safi] = 0; | |
7444 | ||
7445 | /* Check if handling a regular peer. */ | |
7446 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
7447 | /* Skip peer-group mechanics for regular peers. */ | |
7448 | peer_maximum_prefix_out_refresh_routes(peer, afi, safi); | |
7449 | return 0; | |
7450 | } | |
7451 | ||
7452 | /* | |
7453 | * Remove flag and configuration from all peer-group members, unless | |
f75b9163 | 7454 | * they are explicitly overriding peer-group configuration. |
80444d30 LS |
7455 | */ |
7456 | for (ALL_LIST_ELEMENTS_RO(peer->group->peer, node, member)) { | |
7457 | /* Skip peers with overridden configuration. */ | |
7458 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
7459 | PEER_FLAG_MAX_PREFIX_OUT)) | |
7460 | continue; | |
7461 | ||
7462 | /* Remove flag and configuration on peer-group member. | |
7463 | */ | |
7464 | UNSET_FLAG(member->af_flags[afi][safi], | |
7465 | PEER_FLAG_MAX_PREFIX_OUT); | |
7466 | member->pmax_out[afi][safi] = 0; | |
7467 | ||
7468 | peer_maximum_prefix_out_refresh_routes(member, afi, safi); | |
7469 | } | |
7470 | return 0; | |
7471 | } | |
7472 | ||
d62a17ae | 7473 | int is_ebgp_multihop_configured(struct peer *peer) |
718e3744 | 7474 | { |
d62a17ae | 7475 | struct peer_group *group; |
7476 | struct listnode *node, *nnode; | |
7477 | struct peer *peer1; | |
718e3744 | 7478 | |
d62a17ae | 7479 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
7480 | group = peer->group; | |
7481 | if ((peer_sort(peer) != BGP_PEER_IBGP) | |
c8d6f0d6 | 7482 | && (group->conf->ttl != BGP_DEFAULT_TTL)) |
d62a17ae | 7483 | return 1; |
718e3744 | 7484 | |
d62a17ae | 7485 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer1)) { |
7486 | if ((peer_sort(peer1) != BGP_PEER_IBGP) | |
c8d6f0d6 | 7487 | && (peer1->ttl != BGP_DEFAULT_TTL)) |
d62a17ae | 7488 | return 1; |
7489 | } | |
7490 | } else { | |
c8d6f0d6 DA |
7491 | if ((peer_sort(peer) != BGP_PEER_IBGP) |
7492 | && (peer->ttl != BGP_DEFAULT_TTL)) | |
d62a17ae | 7493 | return 1; |
7494 | } | |
7495 | return 0; | |
7496 | } | |
718e3744 | 7497 | |
d62a17ae | 7498 | /* Set # of hops between us and BGP peer. */ |
7499 | int peer_ttl_security_hops_set(struct peer *peer, int gtsm_hops) | |
7500 | { | |
7501 | struct peer_group *group; | |
4ec7a71a | 7502 | struct peer *gpeer; |
d62a17ae | 7503 | struct listnode *node, *nnode; |
7504 | int ret; | |
7505 | ||
84c320dc DA |
7506 | zlog_debug("%s: set gtsm_hops to %d for %s", __func__, gtsm_hops, |
7507 | peer->host); | |
d62a17ae | 7508 | |
7509 | /* We cannot configure ttl-security hops when ebgp-multihop is already | |
7510 | set. For non peer-groups, the check is simple. For peer-groups, | |
7511 | it's | |
7512 | slightly messy, because we need to check both the peer-group | |
7513 | structure | |
7514 | and all peer-group members for any trace of ebgp-multihop | |
7515 | configuration | |
7516 | before actually applying the ttl-security rules. Cisco really made a | |
7517 | mess of this configuration parameter, and OpenBGPD got it right. | |
7518 | */ | |
7519 | ||
e2521429 DA |
7520 | if ((peer->gtsm_hops == BGP_GTSM_HOPS_DISABLED) |
7521 | && (peer->sort != BGP_PEER_IBGP)) { | |
d62a17ae | 7522 | if (is_ebgp_multihop_configured(peer)) |
7523 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
7524 | ||
7525 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
7526 | peer->gtsm_hops = gtsm_hops; | |
7527 | ||
7528 | /* Calling ebgp multihop also resets the session. | |
7529 | * On restart, NHT will get setup correctly as will the | |
7530 | * min & max ttls on the socket. The return value is | |
7531 | * irrelevant. | |
7532 | */ | |
7533 | ret = peer_ebgp_multihop_set(peer, MAXTTL); | |
7534 | ||
7535 | if (ret != 0) | |
7536 | return ret; | |
7537 | } else { | |
7538 | group = peer->group; | |
4ec7a71a | 7539 | group->conf->gtsm_hops = gtsm_hops; |
d62a17ae | 7540 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, |
4ec7a71a DS |
7541 | gpeer)) { |
7542 | gpeer->gtsm_hops = group->conf->gtsm_hops; | |
d62a17ae | 7543 | |
7544 | /* Calling ebgp multihop also resets the | |
7545 | * session. | |
7546 | * On restart, NHT will get setup correctly as | |
7547 | * will the | |
7548 | * min & max ttls on the socket. The return | |
7549 | * value is | |
7550 | * irrelevant. | |
7551 | */ | |
4ec7a71a | 7552 | peer_ebgp_multihop_set(gpeer, MAXTTL); |
d62a17ae | 7553 | } |
7554 | } | |
7555 | } else { | |
7556 | /* Post the first gtsm setup or if its ibgp, maxttl setting | |
7557 | * isn't | |
7558 | * necessary, just set the minttl. | |
7559 | */ | |
7560 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
7561 | peer->gtsm_hops = gtsm_hops; | |
7562 | ||
7563 | if (peer->fd >= 0) | |
7564 | sockopt_minttl(peer->su.sa.sa_family, peer->fd, | |
7565 | MAXTTL + 1 - gtsm_hops); | |
7566 | if ((peer->status < Established) && peer->doppelganger | |
7567 | && (peer->doppelganger->fd >= 0)) | |
7568 | sockopt_minttl(peer->su.sa.sa_family, | |
7569 | peer->doppelganger->fd, | |
7570 | MAXTTL + 1 - gtsm_hops); | |
7571 | } else { | |
7572 | group = peer->group; | |
4ec7a71a | 7573 | group->conf->gtsm_hops = gtsm_hops; |
d62a17ae | 7574 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, |
4ec7a71a DS |
7575 | gpeer)) { |
7576 | gpeer->gtsm_hops = group->conf->gtsm_hops; | |
d62a17ae | 7577 | |
7578 | /* Change setting of existing peer | |
7579 | * established then change value (may break | |
7580 | * connectivity) | |
7581 | * not established yet (teardown session and | |
7582 | * restart) | |
7583 | * no session then do nothing (will get | |
7584 | * handled by next connection) | |
7585 | */ | |
4ec7a71a DS |
7586 | if (gpeer->fd >= 0 |
7587 | && gpeer->gtsm_hops | |
e2521429 | 7588 | != BGP_GTSM_HOPS_DISABLED) |
d62a17ae | 7589 | sockopt_minttl( |
4ec7a71a DS |
7590 | gpeer->su.sa.sa_family, |
7591 | gpeer->fd, | |
7592 | MAXTTL + 1 - gpeer->gtsm_hops); | |
7593 | if ((gpeer->status < Established) | |
7594 | && gpeer->doppelganger | |
7595 | && (gpeer->doppelganger->fd >= 0)) | |
7596 | sockopt_minttl(gpeer->su.sa.sa_family, | |
7597 | gpeer->doppelganger->fd, | |
d62a17ae | 7598 | MAXTTL + 1 - gtsm_hops); |
7599 | } | |
7600 | } | |
7601 | } | |
718e3744 | 7602 | |
d62a17ae | 7603 | return 0; |
718e3744 | 7604 | } |
7605 | ||
d62a17ae | 7606 | int peer_ttl_security_hops_unset(struct peer *peer) |
7607 | { | |
7608 | struct peer_group *group; | |
7609 | struct listnode *node, *nnode; | |
7610 | int ret = 0; | |
7611 | ||
84c320dc | 7612 | zlog_debug("%s: set gtsm_hops to zero for %s", __func__, peer->host); |
d62a17ae | 7613 | |
7614 | /* if a peer-group member, then reset to peer-group default rather than | |
7615 | * 0 */ | |
7616 | if (peer_group_active(peer)) | |
7617 | peer->gtsm_hops = peer->group->conf->gtsm_hops; | |
7618 | else | |
e2521429 | 7619 | peer->gtsm_hops = BGP_GTSM_HOPS_DISABLED; |
d62a17ae | 7620 | |
7621 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
7622 | /* Invoking ebgp_multihop_set will set the TTL back to the | |
7623 | * original | |
7624 | * value as well as restting the NHT and such. The session is | |
7625 | * reset. | |
7626 | */ | |
7627 | if (peer->sort == BGP_PEER_EBGP) | |
7628 | ret = peer_ebgp_multihop_unset(peer); | |
7629 | else { | |
7630 | if (peer->fd >= 0) | |
7631 | sockopt_minttl(peer->su.sa.sa_family, peer->fd, | |
7632 | 0); | |
7633 | ||
7634 | if ((peer->status < Established) && peer->doppelganger | |
7635 | && (peer->doppelganger->fd >= 0)) | |
7636 | sockopt_minttl(peer->su.sa.sa_family, | |
7637 | peer->doppelganger->fd, 0); | |
7638 | } | |
7639 | } else { | |
7640 | group = peer->group; | |
7641 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
e2521429 | 7642 | peer->gtsm_hops = BGP_GTSM_HOPS_DISABLED; |
d62a17ae | 7643 | if (peer->sort == BGP_PEER_EBGP) |
7644 | ret = peer_ebgp_multihop_unset(peer); | |
7645 | else { | |
7646 | if (peer->fd >= 0) | |
7647 | sockopt_minttl(peer->su.sa.sa_family, | |
7648 | peer->fd, 0); | |
7649 | ||
7650 | if ((peer->status < Established) | |
7651 | && peer->doppelganger | |
7652 | && (peer->doppelganger->fd >= 0)) | |
7653 | sockopt_minttl(peer->su.sa.sa_family, | |
7654 | peer->doppelganger->fd, | |
7655 | 0); | |
7656 | } | |
7657 | } | |
7658 | } | |
718e3744 | 7659 | |
d62a17ae | 7660 | return ret; |
7661 | } | |
7662 | ||
3cb14f26 DS |
7663 | static void peer_reset_message_stats(struct peer *peer) |
7664 | { | |
7665 | if (peer) { | |
7666 | atomic_store_explicit(&peer->open_in, 0, memory_order_relaxed); | |
7667 | atomic_store_explicit(&peer->open_out, 0, memory_order_relaxed); | |
7668 | atomic_store_explicit(&peer->update_in, 0, | |
7669 | memory_order_relaxed); | |
7670 | atomic_store_explicit(&peer->update_out, 0, | |
7671 | memory_order_relaxed); | |
7672 | atomic_store_explicit(&peer->keepalive_in, 0, | |
7673 | memory_order_relaxed); | |
7674 | atomic_store_explicit(&peer->keepalive_out, 0, | |
7675 | memory_order_relaxed); | |
7676 | atomic_store_explicit(&peer->notify_in, 0, | |
7677 | memory_order_relaxed); | |
7678 | atomic_store_explicit(&peer->notify_out, 0, | |
7679 | memory_order_relaxed); | |
7680 | atomic_store_explicit(&peer->refresh_in, 0, | |
7681 | memory_order_relaxed); | |
7682 | atomic_store_explicit(&peer->refresh_out, 0, | |
7683 | memory_order_relaxed); | |
7684 | atomic_store_explicit(&peer->dynamic_cap_in, 0, | |
7685 | memory_order_relaxed); | |
7686 | atomic_store_explicit(&peer->dynamic_cap_out, 0, | |
7687 | memory_order_relaxed); | |
7688 | } | |
7689 | } | |
7690 | ||
d62a17ae | 7691 | /* |
7692 | * If peer clear is invoked in a loop for all peers on the BGP instance, | |
7693 | * it may end up freeing the doppelganger, and if this was the next node | |
7694 | * to the current node, we would end up accessing the freed next node. | |
7695 | * Pass along additional parameter which can be updated if next node | |
7696 | * is freed; only required when walking the peer list on BGP instance. | |
7697 | */ | |
7698 | int peer_clear(struct peer *peer, struct listnode **nnode) | |
7699 | { | |
cb9196e7 DS |
7700 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_SHUTDOWN) |
7701 | || !CHECK_FLAG(peer->bgp->flags, BGP_FLAG_SHUTDOWN)) { | |
ac4522e6 | 7702 | if (peer_maximum_prefix_clear_overflow(peer)) |
d62a17ae | 7703 | return 0; |
d62a17ae | 7704 | |
7705 | peer->v_start = BGP_INIT_START_TIMER; | |
7706 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
7707 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
7708 | BGP_NOTIFY_CEASE_ADMIN_RESET); | |
7709 | else | |
7710 | bgp_session_reset_safe(peer, nnode); | |
718e3744 | 7711 | } |
d62a17ae | 7712 | return 0; |
718e3744 | 7713 | } |
6b0655a2 | 7714 | |
d62a17ae | 7715 | int peer_clear_soft(struct peer *peer, afi_t afi, safi_t safi, |
7716 | enum bgp_clear_type stype) | |
718e3744 | 7717 | { |
d62a17ae | 7718 | struct peer_af *paf; |
718e3744 | 7719 | |
feb17238 | 7720 | if (!peer_established(peer)) |
d62a17ae | 7721 | return 0; |
718e3744 | 7722 | |
d62a17ae | 7723 | if (!peer->afc[afi][safi]) |
7724 | return BGP_ERR_AF_UNCONFIGURED; | |
718e3744 | 7725 | |
d62a17ae | 7726 | peer->rtt = sockopt_tcp_rtt(peer->fd); |
718e3744 | 7727 | |
d62a17ae | 7728 | if (stype == BGP_CLEAR_SOFT_OUT || stype == BGP_CLEAR_SOFT_BOTH) { |
7729 | /* Clear the "neighbor x.x.x.x default-originate" flag */ | |
7730 | paf = peer_af_find(peer, afi, safi); | |
7731 | if (paf && paf->subgroup | |
7732 | && CHECK_FLAG(paf->subgroup->sflags, | |
7733 | SUBGRP_STATUS_DEFAULT_ORIGINATE)) | |
7734 | UNSET_FLAG(paf->subgroup->sflags, | |
7735 | SUBGRP_STATUS_DEFAULT_ORIGINATE); | |
718e3744 | 7736 | |
e1a32ec1 | 7737 | bgp_announce_route(peer, afi, safi, false); |
d62a17ae | 7738 | } |
718e3744 | 7739 | |
d62a17ae | 7740 | if (stype == BGP_CLEAR_SOFT_IN_ORF_PREFIX) { |
7741 | if (CHECK_FLAG(peer->af_cap[afi][safi], | |
7742 | PEER_CAP_ORF_PREFIX_SM_ADV) | |
7743 | && (CHECK_FLAG(peer->af_cap[afi][safi], | |
7744 | PEER_CAP_ORF_PREFIX_RM_RCV) | |
7745 | || CHECK_FLAG(peer->af_cap[afi][safi], | |
7746 | PEER_CAP_ORF_PREFIX_RM_OLD_RCV))) { | |
7747 | struct bgp_filter *filter = &peer->filter[afi][safi]; | |
d7c0a89a | 7748 | uint8_t prefix_type; |
d62a17ae | 7749 | |
7750 | if (CHECK_FLAG(peer->af_cap[afi][safi], | |
7751 | PEER_CAP_ORF_PREFIX_RM_RCV)) | |
7752 | prefix_type = ORF_TYPE_PREFIX; | |
7753 | else | |
7754 | prefix_type = ORF_TYPE_PREFIX_OLD; | |
7755 | ||
7756 | if (filter->plist[FILTER_IN].plist) { | |
7757 | if (CHECK_FLAG(peer->af_sflags[afi][safi], | |
7758 | PEER_STATUS_ORF_PREFIX_SEND)) | |
7759 | bgp_route_refresh_send( | |
7760 | peer, afi, safi, prefix_type, | |
9af52ccf DA |
7761 | REFRESH_DEFER, 1, |
7762 | BGP_ROUTE_REFRESH_NORMAL); | |
7763 | bgp_route_refresh_send( | |
7764 | peer, afi, safi, prefix_type, | |
7765 | REFRESH_IMMEDIATE, 0, | |
7766 | BGP_ROUTE_REFRESH_NORMAL); | |
d62a17ae | 7767 | } else { |
7768 | if (CHECK_FLAG(peer->af_sflags[afi][safi], | |
7769 | PEER_STATUS_ORF_PREFIX_SEND)) | |
7770 | bgp_route_refresh_send( | |
7771 | peer, afi, safi, prefix_type, | |
9af52ccf DA |
7772 | REFRESH_IMMEDIATE, 1, |
7773 | BGP_ROUTE_REFRESH_NORMAL); | |
d62a17ae | 7774 | else |
9af52ccf DA |
7775 | bgp_route_refresh_send( |
7776 | peer, afi, safi, 0, 0, 0, | |
7777 | BGP_ROUTE_REFRESH_NORMAL); | |
d62a17ae | 7778 | } |
7779 | return 0; | |
7780 | } | |
7781 | } | |
718e3744 | 7782 | |
d62a17ae | 7783 | if (stype == BGP_CLEAR_SOFT_IN || stype == BGP_CLEAR_SOFT_BOTH |
7784 | || stype == BGP_CLEAR_SOFT_IN_ORF_PREFIX) { | |
7785 | /* If neighbor has soft reconfiguration inbound flag. | |
7786 | Use Adj-RIB-In database. */ | |
89c73443 | 7787 | if (!bgp_soft_reconfig_in(peer, afi, safi)) { |
d62a17ae | 7788 | /* If neighbor has route refresh capability, send route |
7789 | refresh | |
7790 | message to the peer. */ | |
7791 | if (CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_OLD_RCV) | |
7792 | || CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_NEW_RCV)) | |
9af52ccf DA |
7793 | bgp_route_refresh_send( |
7794 | peer, afi, safi, 0, 0, 0, | |
7795 | BGP_ROUTE_REFRESH_NORMAL); | |
d62a17ae | 7796 | else |
7797 | return BGP_ERR_SOFT_RECONFIG_UNCONFIGURED; | |
7798 | } | |
7799 | } | |
3cb14f26 DS |
7800 | |
7801 | if (stype == BGP_CLEAR_MESSAGE_STATS) | |
7802 | peer_reset_message_stats(peer); | |
7803 | ||
d62a17ae | 7804 | return 0; |
718e3744 | 7805 | } |
7806 | ||
d62a17ae | 7807 | /* Display peer uptime.*/ |
9f049418 | 7808 | char *peer_uptime(time_t uptime2, char *buf, size_t len, bool use_json, |
d62a17ae | 7809 | json_object *json) |
7810 | { | |
7811 | time_t uptime1, epoch_tbuf; | |
a2700b50 | 7812 | struct tm tm; |
d62a17ae | 7813 | |
d62a17ae | 7814 | /* If there is no connection has been done before print `never'. */ |
7815 | if (uptime2 == 0) { | |
7816 | if (use_json) { | |
7817 | json_object_string_add(json, "peerUptime", "never"); | |
7818 | json_object_int_add(json, "peerUptimeMsec", 0); | |
7819 | } else | |
7820 | snprintf(buf, len, "never"); | |
7821 | return buf; | |
7822 | } | |
718e3744 | 7823 | |
d62a17ae | 7824 | /* Get current time. */ |
083ec940 | 7825 | uptime1 = monotime(NULL); |
d62a17ae | 7826 | uptime1 -= uptime2; |
a2700b50 | 7827 | gmtime_r(&uptime1, &tm); |
718e3744 | 7828 | |
d62a17ae | 7829 | if (uptime1 < ONE_DAY_SECOND) |
a2700b50 MS |
7830 | snprintf(buf, len, "%02d:%02d:%02d", tm.tm_hour, tm.tm_min, |
7831 | tm.tm_sec); | |
d62a17ae | 7832 | else if (uptime1 < ONE_WEEK_SECOND) |
a2700b50 MS |
7833 | snprintf(buf, len, "%dd%02dh%02dm", tm.tm_yday, tm.tm_hour, |
7834 | tm.tm_min); | |
d62a17ae | 7835 | else if (uptime1 < ONE_YEAR_SECOND) |
a2700b50 MS |
7836 | snprintf(buf, len, "%02dw%dd%02dh", tm.tm_yday / 7, |
7837 | tm.tm_yday - ((tm.tm_yday / 7) * 7), tm.tm_hour); | |
d62a17ae | 7838 | else |
a2700b50 MS |
7839 | snprintf(buf, len, "%02dy%02dw%dd", tm.tm_year - 70, |
7840 | tm.tm_yday / 7, | |
7841 | tm.tm_yday - ((tm.tm_yday / 7) * 7)); | |
d62a17ae | 7842 | |
7843 | if (use_json) { | |
7844 | epoch_tbuf = time(NULL) - uptime1; | |
7845 | json_object_string_add(json, "peerUptime", buf); | |
7846 | json_object_int_add(json, "peerUptimeMsec", uptime1 * 1000); | |
7847 | json_object_int_add(json, "peerUptimeEstablishedEpoch", | |
7848 | epoch_tbuf); | |
7849 | } | |
718e3744 | 7850 | |
d62a17ae | 7851 | return buf; |
718e3744 | 7852 | } |
7853 | ||
85e9cd9a AMR |
7854 | void bgp_master_init(struct thread_master *master, const int buffer_size, |
7855 | struct list *addresses) | |
718e3744 | 7856 | { |
d62a17ae | 7857 | qobj_init(); |
0e64d123 | 7858 | |
6006b807 | 7859 | memset(&bgp_master, 0, sizeof(bgp_master)); |
718e3744 | 7860 | |
d62a17ae | 7861 | bm = &bgp_master; |
7862 | bm->bgp = list_new(); | |
7863 | bm->listen_sockets = list_new(); | |
7864 | bm->port = BGP_PORT_DEFAULT; | |
85e9cd9a | 7865 | bm->addresses = addresses; |
d62a17ae | 7866 | bm->master = master; |
083ec940 | 7867 | bm->start_time = monotime(NULL); |
d62a17ae | 7868 | bm->t_rmap_update = NULL; |
7869 | bm->rmap_update_timer = RMAP_DEFAULT_UPDATE_TIMER; | |
d70583f7 D |
7870 | bm->v_update_delay = BGP_UPDATE_DELAY_DEF; |
7871 | bm->v_establish_wait = BGP_UPDATE_DELAY_DEF; | |
97b4a0ec | 7872 | bm->terminating = false; |
c2d020ad | 7873 | bm->socket_buffer = buffer_size; |
9acb67cb | 7874 | bm->wait_for_fib = false; |
425bd64b | 7875 | bm->tcp_dscp = IPTOS_PREC_INTERNETCONTROL; |
a0b937de | 7876 | bm->inq_limit = BM_DEFAULT_INQ_LIMIT; |
495f0b13 | 7877 | |
48ecf8f5 | 7878 | bgp_mac_init(); |
e9eb5f63 | 7879 | /* init the rd id space. |
7880 | assign 0th index in the bitfield, | |
523cafc4 | 7881 | so that we start with id 1 |
7882 | */ | |
e9eb5f63 | 7883 | bf_init(bm->rd_idspace, UINT16_MAX); |
7884 | bf_assign_zero_index(bm->rd_idspace); | |
7885 | ||
955bfd98 | 7886 | /* mpls label dynamic allocation pool */ |
e70e9f8e | 7887 | bgp_lp_init(bm->master, &bm->labelpool); |
955bfd98 | 7888 | |
c589d847 | 7889 | bgp_l3nhg_init(); |
c44ab6f1 | 7890 | bgp_evpn_mh_init(); |
d62a17ae | 7891 | QOBJ_REG(bm, bgp_master); |
718e3744 | 7892 | } |
200df115 | 7893 | |
ad4cbda1 | 7894 | /* |
009b18fc | 7895 | * Free up connected routes and interfaces for a BGP instance. Invoked upon |
7896 | * instance delete (non-default only) or BGP exit. | |
ad4cbda1 | 7897 | */ |
d62a17ae | 7898 | static void bgp_if_finish(struct bgp *bgp) |
ad4cbda1 | 7899 | { |
ee66b77f | 7900 | struct vrf *vrf; |
d62a17ae | 7901 | struct interface *ifp; |
7902 | ||
ee66b77f PG |
7903 | vrf = bgp_vrf_lookup_by_instance_type(bgp); |
7904 | ||
f4e14fdb | 7905 | if (bgp->inst_type == BGP_INSTANCE_TYPE_VIEW || !vrf) |
d62a17ae | 7906 | return; |
ad4cbda1 | 7907 | |
451fda4f | 7908 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 7909 | struct listnode *c_node, *c_nnode; |
7910 | struct connected *c; | |
ad4cbda1 | 7911 | |
d62a17ae | 7912 | for (ALL_LIST_ELEMENTS(ifp->connected, c_node, c_nnode, c)) |
7913 | bgp_connected_delete(bgp, c); | |
7914 | } | |
ad4cbda1 | 7915 | } |
6b0655a2 | 7916 | |
d62a17ae | 7917 | static void bgp_viewvrf_autocomplete(vector comps, struct cmd_token *token) |
18c57037 | 7918 | { |
d62a17ae | 7919 | struct vrf *vrf = NULL; |
7920 | struct listnode *next; | |
7921 | struct bgp *bgp; | |
18c57037 | 7922 | |
6a8ca00f PG |
7923 | RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) |
7924 | vector_set(comps, XSTRDUP(MTYPE_COMPLETION, vrf->name)); | |
18c57037 | 7925 | |
d62a17ae | 7926 | for (ALL_LIST_ELEMENTS_RO(bm->bgp, next, bgp)) { |
7927 | if (bgp->inst_type != BGP_INSTANCE_TYPE_VIEW) | |
7928 | continue; | |
18c57037 | 7929 | |
d62a17ae | 7930 | vector_set(comps, XSTRDUP(MTYPE_COMPLETION, bgp->name)); |
7931 | } | |
18c57037 DS |
7932 | } |
7933 | ||
2ed9fe4a DL |
7934 | static void bgp_instasn_autocomplete(vector comps, struct cmd_token *token) |
7935 | { | |
7936 | struct listnode *next, *next2; | |
7937 | struct bgp *bgp, *bgp2; | |
7938 | char buf[11]; | |
7939 | ||
7940 | for (ALL_LIST_ELEMENTS_RO(bm->bgp, next, bgp)) { | |
7941 | /* deduplicate */ | |
7942 | for (ALL_LIST_ELEMENTS_RO(bm->bgp, next2, bgp2)) { | |
7943 | if (bgp2->as == bgp->as) | |
7944 | break; | |
7945 | if (bgp2 == bgp) | |
7946 | break; | |
7947 | } | |
7948 | if (bgp2 != bgp) | |
7949 | continue; | |
7950 | ||
7951 | snprintf(buf, sizeof(buf), "%u", bgp->as); | |
7952 | vector_set(comps, XSTRDUP(MTYPE_COMPLETION, buf)); | |
7953 | } | |
7954 | } | |
7955 | ||
18c57037 | 7956 | static const struct cmd_variable_handler bgp_viewvrf_var_handlers[] = { |
d62a17ae | 7957 | {.tokenname = "VIEWVRFNAME", .completions = bgp_viewvrf_autocomplete}, |
2ed9fe4a | 7958 | {.varname = "instasn", .completions = bgp_instasn_autocomplete}, |
d62a17ae | 7959 | {.completions = NULL}, |
18c57037 DS |
7960 | }; |
7961 | ||
1ac267a2 DL |
7962 | struct frr_pthread *bgp_pth_io; |
7963 | struct frr_pthread *bgp_pth_ka; | |
7964 | ||
4d762f26 | 7965 | static void bgp_pthreads_init(void) |
2d4ee774 | 7966 | { |
1ac267a2 DL |
7967 | assert(!bgp_pth_io); |
7968 | assert(!bgp_pth_ka); | |
7969 | ||
a715eab3 | 7970 | struct frr_pthread_attr io = { |
a715eab3 QY |
7971 | .start = frr_pthread_attr_default.start, |
7972 | .stop = frr_pthread_attr_default.stop, | |
a715eab3 QY |
7973 | }; |
7974 | struct frr_pthread_attr ka = { | |
a715eab3 QY |
7975 | .start = bgp_keepalives_start, |
7976 | .stop = bgp_keepalives_stop, | |
a715eab3 | 7977 | }; |
1ac267a2 DL |
7978 | bgp_pth_io = frr_pthread_new(&io, "BGP I/O thread", "bgpd_io"); |
7979 | bgp_pth_ka = frr_pthread_new(&ka, "BGP Keepalives thread", "bgpd_ka"); | |
419dfe6a QY |
7980 | } |
7981 | ||
4d762f26 | 7982 | void bgp_pthreads_run(void) |
419dfe6a | 7983 | { |
1ac267a2 DL |
7984 | frr_pthread_run(bgp_pth_io, NULL); |
7985 | frr_pthread_run(bgp_pth_ka, NULL); | |
88b24dee | 7986 | |
a715eab3 | 7987 | /* Wait until threads are ready. */ |
1ac267a2 DL |
7988 | frr_pthread_wait_running(bgp_pth_io); |
7989 | frr_pthread_wait_running(bgp_pth_ka); | |
2d4ee774 QY |
7990 | } |
7991 | ||
4d762f26 | 7992 | void bgp_pthreads_finish(void) |
2d4ee774 | 7993 | { |
0ca8b79f | 7994 | frr_pthread_stop_all(); |
2d4ee774 QY |
7995 | } |
7996 | ||
aa24a36a DA |
7997 | static int peer_unshut_after_cfg(struct bgp *bgp) |
7998 | { | |
7999 | struct listnode *node; | |
8000 | struct peer *peer; | |
8001 | ||
8002 | for (ALL_LIST_ELEMENTS_RO(bgp->peer, node, peer)) { | |
8003 | if (!peer->shut_during_cfg) | |
8004 | continue; | |
8005 | ||
8006 | if (bgp_debug_neighbor_events(peer)) | |
8007 | zlog_debug("%s: released from config-pending hold", | |
8008 | peer->host); | |
8009 | ||
8010 | peer->shut_during_cfg = false; | |
8011 | if (peer_active(peer) && peer->status != Established) { | |
8012 | if (peer->status != Idle) | |
8013 | BGP_EVENT_ADD(peer, BGP_Stop); | |
8014 | BGP_EVENT_ADD(peer, BGP_Start); | |
8015 | } | |
8016 | } | |
8017 | ||
8018 | return 0; | |
8019 | } | |
8020 | ||
f533be73 | 8021 | void bgp_init(unsigned short instance) |
718e3744 | 8022 | { |
aa24a36a | 8023 | hook_register(bgp_config_end, peer_unshut_after_cfg); |
fc9a856f | 8024 | |
d62a17ae | 8025 | /* allocates some vital data structures used by peer commands in |
8026 | * vty_init */ | |
718e3744 | 8027 | |
419dfe6a QY |
8028 | /* pre-init pthreads */ |
8029 | bgp_pthreads_init(); | |
8030 | ||
d62a17ae | 8031 | /* Init zebra. */ |
f533be73 | 8032 | bgp_zebra_init(bm->master, instance); |
718e3744 | 8033 | |
49e5a4a0 | 8034 | #ifdef ENABLE_BGP_VNC |
d62a17ae | 8035 | vnc_zebra_init(bm->master); |
65efcfce LB |
8036 | #endif |
8037 | ||
d62a17ae | 8038 | /* BGP VTY commands installation. */ |
8039 | bgp_vty_init(); | |
8040 | ||
8041 | /* BGP inits. */ | |
8042 | bgp_attr_init(); | |
8043 | bgp_debug_init(); | |
ed0e57e3 | 8044 | bgp_community_alias_init(); |
d62a17ae | 8045 | bgp_dump_init(); |
8046 | bgp_route_init(); | |
8047 | bgp_route_map_init(); | |
8048 | bgp_scan_vty_init(); | |
8049 | bgp_mplsvpn_init(); | |
49e5a4a0 | 8050 | #ifdef ENABLE_BGP_VNC |
d62a17ae | 8051 | rfapi_init(); |
65efcfce | 8052 | #endif |
d62a17ae | 8053 | bgp_ethernetvpn_init(); |
7c40bf39 | 8054 | bgp_flowspec_vty_init(); |
d62a17ae | 8055 | |
8056 | /* Access list initialize. */ | |
8057 | access_list_init(); | |
8058 | access_list_add_hook(peer_distribute_update); | |
8059 | access_list_delete_hook(peer_distribute_update); | |
8060 | ||
8061 | /* Filter list initialize. */ | |
8062 | bgp_filter_init(); | |
8063 | as_list_add_hook(peer_aslist_add); | |
8064 | as_list_delete_hook(peer_aslist_del); | |
8065 | ||
8066 | /* Prefix list initialize.*/ | |
8067 | prefix_list_init(); | |
8068 | prefix_list_add_hook(peer_prefix_list_update); | |
8069 | prefix_list_delete_hook(peer_prefix_list_update); | |
8070 | ||
8071 | /* Community list initialize. */ | |
8072 | bgp_clist = community_list_init(); | |
8073 | ||
8074 | /* BFD init */ | |
21bfce98 | 8075 | bgp_bfd_init(bm->master); |
d62a17ae | 8076 | |
e3ea6503 PR |
8077 | bgp_lp_vty_init(); |
8078 | ||
d62a17ae | 8079 | cmd_variable_handler_register(bgp_viewvrf_var_handlers); |
8080 | } | |
8081 | ||
8082 | void bgp_terminate(void) | |
8083 | { | |
8084 | struct bgp *bgp; | |
8085 | struct peer *peer; | |
8086 | struct listnode *node, *nnode; | |
8087 | struct listnode *mnode, *mnnode; | |
8088 | ||
8089 | QOBJ_UNREG(bm); | |
8090 | ||
8091 | /* Close the listener sockets first as this prevents peers from | |
8092 | * attempting | |
8093 | * to reconnect on receiving the peer unconfig message. In the presence | |
8094 | * of a large number of peers this will ensure that no peer is left with | |
8095 | * a dangling connection | |
8096 | */ | |
d62a17ae | 8097 | |
3f22218b DS |
8098 | bgp_close(); |
8099 | /* reverse bgp_master_init */ | |
8100 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
8101 | bgp_close_vrf_socket(bgp); | |
95098d96 DA |
8102 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { |
8103 | if (BGP_PEER_GRACEFUL_RESTART_CAPABLE(peer)) { | |
8104 | if (bgp_debug_neighbor_events(peer)) | |
8105 | zlog_debug( | |
8106 | "%pBP configured Graceful-Restart, skipping unconfig notification", | |
8107 | peer); | |
8108 | continue; | |
8109 | } | |
8110 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
d62a17ae | 8111 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, |
8112 | BGP_NOTIFY_CEASE_PEER_UNCONFIG); | |
95098d96 | 8113 | } |
3f22218b DS |
8114 | } |
8115 | ||
8116 | if (bm->listen_sockets) | |
8117 | list_delete(&bm->listen_sockets); | |
d62a17ae | 8118 | |
fa5806c3 | 8119 | THREAD_OFF(bm->t_rmap_update); |
955bfd98 | 8120 | |
48ecf8f5 | 8121 | bgp_mac_finish(); |
545acafb | 8122 | } |
dcc1615e DD |
8123 | |
8124 | struct peer *peer_lookup_in_view(struct vty *vty, struct bgp *bgp, | |
8125 | const char *ip_str, bool use_json) | |
8126 | { | |
8127 | int ret; | |
8128 | struct peer *peer; | |
8129 | union sockunion su; | |
8130 | ||
8131 | /* Get peer sockunion. */ | |
8132 | ret = str2sockunion(ip_str, &su); | |
8133 | if (ret < 0) { | |
8134 | peer = peer_lookup_by_conf_if(bgp, ip_str); | |
8135 | if (!peer) { | |
8136 | peer = peer_lookup_by_hostname(bgp, ip_str); | |
8137 | ||
8138 | if (!peer) { | |
8139 | if (use_json) { | |
8140 | json_object *json_no = NULL; | |
8141 | json_no = json_object_new_object(); | |
8142 | json_object_string_add( | |
8143 | json_no, | |
8144 | "malformedAddressOrName", | |
8145 | ip_str); | |
75eeda93 | 8146 | vty_json(vty, json_no); |
dcc1615e DD |
8147 | } else |
8148 | vty_out(vty, | |
8149 | "%% Malformed address or name: %s\n", | |
8150 | ip_str); | |
8151 | return NULL; | |
8152 | } | |
8153 | } | |
8154 | return peer; | |
8155 | } | |
8156 | ||
8157 | /* Peer structure lookup. */ | |
8158 | peer = peer_lookup(bgp, &su); | |
8159 | if (!peer) { | |
8160 | if (use_json) { | |
8161 | json_object *json_no = NULL; | |
8162 | json_no = json_object_new_object(); | |
8163 | json_object_string_add(json_no, "warning", | |
8164 | "No such neighbor in this view/vrf"); | |
75eeda93 | 8165 | vty_json(vty, json_no); |
dcc1615e | 8166 | } else |
1c49e813 | 8167 | vty_out(vty, "No such neighbor in this view/vrf\n"); |
dcc1615e DD |
8168 | return NULL; |
8169 | } | |
8170 | ||
8171 | return peer; | |
8172 | } | |
8173 | ||
794b37d5 | 8174 | void bgp_gr_apply_running_config(void) |
8175 | { | |
8176 | struct peer *peer = NULL; | |
8177 | struct bgp *bgp = NULL; | |
8178 | struct listnode *node, *nnode; | |
dc95985f | 8179 | bool gr_router_detected = false; |
794b37d5 | 8180 | |
8181 | if (BGP_DEBUG(graceful_restart, GRACEFUL_RESTART)) | |
36235319 | 8182 | zlog_debug("[BGP_GR] %s called !", __func__); |
794b37d5 | 8183 | |
dc95985f | 8184 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) { |
8185 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
794b37d5 | 8186 | bgp_peer_gr_flags_update(peer); |
36235319 | 8187 | if (CHECK_FLAG(peer->flags, PEER_FLAG_GRACEFUL_RESTART)) |
dc95985f | 8188 | gr_router_detected = true; |
8189 | } | |
8190 | ||
36235319 QY |
8191 | if (gr_router_detected |
8192 | && bgp->present_zebra_gr_state == ZEBRA_GR_DISABLE) { | |
2ba1fe69 | 8193 | bgp_zebra_send_capabilities(bgp, true); |
36235319 QY |
8194 | } else if (!gr_router_detected |
8195 | && bgp->present_zebra_gr_state == ZEBRA_GR_ENABLE) { | |
2ba1fe69 | 8196 | bgp_zebra_send_capabilities(bgp, false); |
dc95985f | 8197 | } |
8198 | ||
8199 | gr_router_detected = false; | |
8200 | } | |
794b37d5 | 8201 | } |
f70c91dc DA |
8202 | |
8203 | printfrr_ext_autoreg_p("BP", printfrr_bp); | |
8204 | static ssize_t printfrr_bp(struct fbuf *buf, struct printfrr_eargs *ea, | |
8205 | const void *ptr) | |
8206 | { | |
8207 | const struct peer *peer = ptr; | |
8208 | ||
8209 | if (!peer) | |
8210 | return bputs(buf, "(null)"); | |
8211 | ||
8212 | return bprintfrr(buf, "%s(%s)", peer->host, | |
8213 | peer->hostname ? peer->hostname : "Unknown"); | |
8214 | } |