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718e3744 | 1 | /* BGP-4, BGP-4+ daemon program |
896014f4 DL |
2 | * Copyright (C) 1996, 97, 98, 99, 2000 Kunihiro Ishiguro |
3 | * | |
4 | * This file is part of GNU Zebra. | |
5 | * | |
6 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2, or (at your option) any | |
9 | * later version. | |
10 | * | |
11 | * GNU Zebra is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License along | |
17 | * with this program; see the file COPYING; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
718e3744 | 20 | |
21 | #include <zebra.h> | |
22 | ||
23 | #include "prefix.h" | |
24 | #include "thread.h" | |
25 | #include "buffer.h" | |
26 | #include "stream.h" | |
74ffbfe6 | 27 | #include "ringbuf.h" |
718e3744 | 28 | #include "command.h" |
29 | #include "sockunion.h" | |
e9a0c656 | 30 | #include "sockopt.h" |
718e3744 | 31 | #include "network.h" |
32 | #include "memory.h" | |
33 | #include "filter.h" | |
34 | #include "routemap.h" | |
718e3744 | 35 | #include "log.h" |
36 | #include "plist.h" | |
37 | #include "linklist.h" | |
200df115 | 38 | #include "workqueue.h" |
3f9c7369 | 39 | #include "queue.h" |
88177fe3 | 40 | #include "zclient.h" |
7f342629 | 41 | #include "bfd.h" |
dd793e4a DW |
42 | #include "hash.h" |
43 | #include "jhash.h" | |
587ff0fd | 44 | #include "table.h" |
4dcadbef | 45 | #include "lib/json.h" |
0ca8b79f | 46 | #include "frr_pthread.h" |
92708db6 | 47 | #include "bitfield.h" |
718e3744 | 48 | |
49 | #include "bgpd/bgpd.h" | |
50 | #include "bgpd/bgp_table.h" | |
51 | #include "bgpd/bgp_aspath.h" | |
52 | #include "bgpd/bgp_route.h" | |
53 | #include "bgpd/bgp_dump.h" | |
54 | #include "bgpd/bgp_debug.h" | |
14454c9f | 55 | #include "bgpd/bgp_errors.h" |
718e3744 | 56 | #include "bgpd/bgp_community.h" |
57 | #include "bgpd/bgp_attr.h" | |
58 | #include "bgpd/bgp_regex.h" | |
59 | #include "bgpd/bgp_clist.h" | |
60 | #include "bgpd/bgp_fsm.h" | |
61 | #include "bgpd/bgp_packet.h" | |
62 | #include "bgpd/bgp_zebra.h" | |
63 | #include "bgpd/bgp_open.h" | |
64 | #include "bgpd/bgp_filter.h" | |
65 | #include "bgpd/bgp_nexthop.h" | |
66 | #include "bgpd/bgp_damp.h" | |
67 | #include "bgpd/bgp_mplsvpn.h" | |
65efcfce | 68 | #if ENABLE_BGP_VNC |
f8b6f499 LB |
69 | #include "bgpd/rfapi/bgp_rfapi_cfg.h" |
70 | #include "bgpd/rfapi/rfapi_backend.h" | |
65efcfce | 71 | #endif |
7ef5a232 | 72 | #include "bgpd/bgp_evpn.h" |
718e3744 | 73 | #include "bgpd/bgp_advertise.h" |
74 | #include "bgpd/bgp_network.h" | |
75 | #include "bgpd/bgp_vty.h" | |
165b5fff | 76 | #include "bgpd/bgp_mpath.h" |
fc9a856f | 77 | #include "bgpd/bgp_nht.h" |
3f9c7369 | 78 | #include "bgpd/bgp_updgrp.h" |
c43ed2e4 | 79 | #include "bgpd/bgp_bfd.h" |
4a1ab8e4 | 80 | #include "bgpd/bgp_memory.h" |
784d3a42 | 81 | #include "bgpd/bgp_evpn_vty.h" |
2d4ee774 | 82 | #include "bgpd/bgp_keepalives.h" |
56257a44 | 83 | #include "bgpd/bgp_io.h" |
41d6d607 | 84 | #include "bgpd/bgp_ecommunity.h" |
7c40bf39 | 85 | #include "bgpd/bgp_flowspec.h" |
955bfd98 | 86 | #include "bgpd/bgp_labelpool.h" |
f3d32faa | 87 | #include "bgpd/bgp_pbr.h" |
dcc68b5e | 88 | #include "bgpd/bgp_addpath.h" |
85c8d83b | 89 | #include "bgpd/bgp_evpn_private.h" |
73d70fa6 DL |
90 | |
91 | DEFINE_MTYPE_STATIC(BGPD, PEER_TX_SHUTDOWN_MSG, "Peer shutdown message (TX)"); | |
85c8d83b | 92 | DEFINE_MTYPE_STATIC(BGPD, BGP_EVPN_INFO, "BGP EVPN instance information"); |
19df7279 DL |
93 | DEFINE_QOBJ_TYPE(bgp_master) |
94 | DEFINE_QOBJ_TYPE(bgp) | |
95 | DEFINE_QOBJ_TYPE(peer) | |
96 | ||
718e3744 | 97 | /* BGP process wide configuration. */ |
98 | static struct bgp_master bgp_master; | |
99 | ||
100 | /* BGP process wide configuration pointer to export. */ | |
101 | struct bgp_master *bm; | |
102 | ||
103 | /* BGP community-list. */ | |
104 | struct community_list_handler *bgp_clist; | |
6b0655a2 | 105 | |
37fe7731 DS |
106 | unsigned int multipath_num = MULTIPATH_NUM; |
107 | ||
d62a17ae | 108 | static void bgp_if_finish(struct bgp *bgp); |
cc32742c | 109 | static void peer_drop_dynamic_neighbor(struct peer *peer); |
b33adb7c | 110 | |
ad4cbda1 | 111 | extern struct zclient *zclient; |
1ff9a340 | 112 | |
e5619c28 PG |
113 | /* handle main socket creation or deletion */ |
114 | static int bgp_check_main_socket(bool create, struct bgp *bgp) | |
115 | { | |
116 | static int bgp_server_main_created; | |
e5619c28 | 117 | |
e5619c28 PG |
118 | if (create == true) { |
119 | if (bgp_server_main_created) | |
120 | return 0; | |
121 | if (bgp_socket(bgp, bm->port, bm->address) < 0) | |
122 | return BGP_ERR_INVALID_VALUE; | |
123 | bgp_server_main_created = 1; | |
124 | return 0; | |
125 | } | |
126 | if (!bgp_server_main_created) | |
127 | return 0; | |
e5619c28 PG |
128 | bgp_close(); |
129 | bgp_server_main_created = 0; | |
130 | return 0; | |
131 | } | |
132 | ||
d62a17ae | 133 | void bgp_session_reset(struct peer *peer) |
1ff9a340 | 134 | { |
d62a17ae | 135 | if (peer->doppelganger && (peer->doppelganger->status != Deleted) |
136 | && !(CHECK_FLAG(peer->doppelganger->flags, PEER_FLAG_CONFIG_NODE))) | |
137 | peer_delete(peer->doppelganger); | |
1ff9a340 | 138 | |
d62a17ae | 139 | BGP_EVENT_ADD(peer, BGP_Stop); |
1ff9a340 DS |
140 | } |
141 | ||
142 | /* | |
143 | * During session reset, we may delete the doppelganger peer, which would | |
144 | * be the next node to the current node. If the session reset was invoked | |
145 | * during walk of peer list, we would end up accessing the freed next | |
146 | * node. This function moves the next node along. | |
147 | */ | |
d62a17ae | 148 | static void bgp_session_reset_safe(struct peer *peer, struct listnode **nnode) |
1ff9a340 | 149 | { |
d62a17ae | 150 | struct listnode *n; |
151 | struct peer *npeer; | |
1ff9a340 | 152 | |
d62a17ae | 153 | n = (nnode) ? *nnode : NULL; |
154 | npeer = (n) ? listgetdata(n) : NULL; | |
1ff9a340 | 155 | |
d62a17ae | 156 | if (peer->doppelganger && (peer->doppelganger->status != Deleted) |
157 | && !(CHECK_FLAG(peer->doppelganger->flags, | |
158 | PEER_FLAG_CONFIG_NODE))) { | |
159 | if (peer->doppelganger == npeer) | |
160 | /* nnode and *nnode are confirmed to be non-NULL here */ | |
161 | *nnode = (*nnode)->next; | |
162 | peer_delete(peer->doppelganger); | |
163 | } | |
1ff9a340 | 164 | |
d62a17ae | 165 | BGP_EVENT_ADD(peer, BGP_Stop); |
1ff9a340 DS |
166 | } |
167 | ||
718e3744 | 168 | /* BGP global flag manipulation. */ |
d62a17ae | 169 | int bgp_option_set(int flag) |
170 | { | |
171 | switch (flag) { | |
172 | case BGP_OPT_NO_FIB: | |
173 | case BGP_OPT_MULTIPLE_INSTANCE: | |
174 | case BGP_OPT_CONFIG_CISCO: | |
175 | case BGP_OPT_NO_LISTEN: | |
0b014ea6 | 176 | case BGP_OPT_NO_ZEBRA: |
d62a17ae | 177 | SET_FLAG(bm->options, flag); |
178 | break; | |
179 | default: | |
180 | return BGP_ERR_INVALID_FLAG; | |
181 | } | |
182 | return 0; | |
183 | } | |
184 | ||
185 | int bgp_option_unset(int flag) | |
186 | { | |
187 | switch (flag) { | |
188 | case BGP_OPT_MULTIPLE_INSTANCE: | |
189 | if (listcount(bm->bgp) > 1) | |
190 | return BGP_ERR_MULTIPLE_INSTANCE_USED; | |
191 | /* Fall through. */ | |
0b014ea6 | 192 | case BGP_OPT_NO_ZEBRA: |
d62a17ae | 193 | case BGP_OPT_NO_FIB: |
194 | case BGP_OPT_CONFIG_CISCO: | |
195 | UNSET_FLAG(bm->options, flag); | |
196 | break; | |
197 | default: | |
198 | return BGP_ERR_INVALID_FLAG; | |
199 | } | |
200 | return 0; | |
201 | } | |
202 | ||
203 | int bgp_option_check(int flag) | |
204 | { | |
205 | return CHECK_FLAG(bm->options, flag); | |
718e3744 | 206 | } |
6b0655a2 | 207 | |
718e3744 | 208 | /* BGP flag manipulation. */ |
d62a17ae | 209 | int bgp_flag_set(struct bgp *bgp, int flag) |
718e3744 | 210 | { |
d62a17ae | 211 | SET_FLAG(bgp->flags, flag); |
212 | return 0; | |
718e3744 | 213 | } |
214 | ||
d62a17ae | 215 | int bgp_flag_unset(struct bgp *bgp, int flag) |
718e3744 | 216 | { |
d62a17ae | 217 | UNSET_FLAG(bgp->flags, flag); |
218 | return 0; | |
718e3744 | 219 | } |
220 | ||
d62a17ae | 221 | int bgp_flag_check(struct bgp *bgp, int flag) |
718e3744 | 222 | { |
d62a17ae | 223 | return CHECK_FLAG(bgp->flags, flag); |
718e3744 | 224 | } |
6b0655a2 | 225 | |
718e3744 | 226 | /* Internal function to set BGP structure configureation flag. */ |
d62a17ae | 227 | static void bgp_config_set(struct bgp *bgp, int config) |
718e3744 | 228 | { |
d62a17ae | 229 | SET_FLAG(bgp->config, config); |
718e3744 | 230 | } |
231 | ||
d62a17ae | 232 | static void bgp_config_unset(struct bgp *bgp, int config) |
718e3744 | 233 | { |
d62a17ae | 234 | UNSET_FLAG(bgp->config, config); |
718e3744 | 235 | } |
236 | ||
d62a17ae | 237 | static int bgp_config_check(struct bgp *bgp, int config) |
718e3744 | 238 | { |
d62a17ae | 239 | return CHECK_FLAG(bgp->config, config); |
718e3744 | 240 | } |
6b0655a2 | 241 | |
718e3744 | 242 | /* Set BGP router identifier. */ |
d62a17ae | 243 | static int bgp_router_id_set(struct bgp *bgp, const struct in_addr *id) |
718e3744 | 244 | { |
d62a17ae | 245 | struct peer *peer; |
246 | struct listnode *node, *nnode; | |
718e3744 | 247 | |
d62a17ae | 248 | if (IPV4_ADDR_SAME(&bgp->router_id, id)) |
249 | return 0; | |
718e3744 | 250 | |
d62a17ae | 251 | /* EVPN uses router id in RD, withdraw them */ |
94c2f693 | 252 | if (is_evpn_enabled()) |
d62a17ae | 253 | bgp_evpn_handle_router_id_update(bgp, TRUE); |
2d48ee25 | 254 | |
d62a17ae | 255 | IPV4_ADDR_COPY(&bgp->router_id, id); |
718e3744 | 256 | |
d62a17ae | 257 | /* Set all peer's local identifier with this value. */ |
258 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
259 | IPV4_ADDR_COPY(&peer->local_id, id); | |
718e3744 | 260 | |
d62a17ae | 261 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
262 | peer->last_reset = PEER_DOWN_RID_CHANGE; | |
263 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
264 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
265 | } | |
266 | } | |
14c1a7bf | 267 | |
d62a17ae | 268 | /* EVPN uses router id in RD, update them */ |
94c2f693 | 269 | if (is_evpn_enabled()) |
d62a17ae | 270 | bgp_evpn_handle_router_id_update(bgp, FALSE); |
2d48ee25 | 271 | |
d62a17ae | 272 | return 0; |
718e3744 | 273 | } |
274 | ||
d62a17ae | 275 | void bgp_router_id_zebra_bump(vrf_id_t vrf_id, const struct prefix *router_id) |
0e6cb743 | 276 | { |
d62a17ae | 277 | struct listnode *node, *nnode; |
278 | struct bgp *bgp; | |
36dc7588 | 279 | struct in_addr *addr = NULL; |
280 | ||
281 | if (router_id != NULL) | |
282 | addr = (struct in_addr *)&(router_id->u.prefix4); | |
0e6cb743 | 283 | |
d62a17ae | 284 | if (vrf_id == VRF_DEFAULT) { |
285 | /* Router-id change for default VRF has to also update all | |
286 | * views. */ | |
287 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) { | |
288 | if (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) | |
289 | continue; | |
0e6cb743 | 290 | |
36dc7588 | 291 | if (addr) |
292 | bgp->router_id_zebra = *addr; | |
293 | else | |
294 | addr = &bgp->router_id_zebra; | |
295 | ||
296 | if (!bgp->router_id_static.s_addr) { | |
297 | /* Router ID is updated if there are no active | |
298 | * peer sessions | |
299 | */ | |
300 | if (bgp->established_peers == 0) { | |
301 | if (BGP_DEBUG(zebra, ZEBRA)) | |
302 | zlog_debug("RID change : vrf %u, RTR ID %s", | |
303 | bgp->vrf_id, inet_ntoa(*addr)); | |
304 | bgp_router_id_set(bgp, addr); | |
305 | } | |
306 | } | |
d62a17ae | 307 | } |
308 | } else { | |
309 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
310 | if (bgp) { | |
36dc7588 | 311 | if (addr) |
312 | bgp->router_id_zebra = *addr; | |
313 | else | |
314 | addr = &bgp->router_id_zebra; | |
315 | ||
316 | if (!bgp->router_id_static.s_addr) { | |
317 | /* Router ID is updated if there are no active | |
318 | * peer sessions | |
319 | */ | |
320 | if (bgp->established_peers == 0) { | |
321 | if (BGP_DEBUG(zebra, ZEBRA)) | |
322 | zlog_debug("RID change : vrf %u, RTR ID %s", | |
323 | bgp->vrf_id, inet_ntoa(*addr)); | |
324 | bgp_router_id_set(bgp, addr); | |
325 | } | |
326 | } | |
0e6cb743 | 327 | |
d62a17ae | 328 | } |
329 | } | |
0e6cb743 DL |
330 | } |
331 | ||
d62a17ae | 332 | int bgp_router_id_static_set(struct bgp *bgp, struct in_addr id) |
0e6cb743 | 333 | { |
d62a17ae | 334 | bgp->router_id_static = id; |
335 | bgp_router_id_set(bgp, id.s_addr ? &id : &bgp->router_id_zebra); | |
336 | return 0; | |
0e6cb743 DL |
337 | } |
338 | ||
718e3744 | 339 | /* BGP's cluster-id control. */ |
d62a17ae | 340 | int bgp_cluster_id_set(struct bgp *bgp, struct in_addr *cluster_id) |
718e3744 | 341 | { |
d62a17ae | 342 | struct peer *peer; |
343 | struct listnode *node, *nnode; | |
718e3744 | 344 | |
d62a17ae | 345 | if (bgp_config_check(bgp, BGP_CONFIG_CLUSTER_ID) |
346 | && IPV4_ADDR_SAME(&bgp->cluster_id, cluster_id)) | |
347 | return 0; | |
718e3744 | 348 | |
d62a17ae | 349 | IPV4_ADDR_COPY(&bgp->cluster_id, cluster_id); |
350 | bgp_config_set(bgp, BGP_CONFIG_CLUSTER_ID); | |
718e3744 | 351 | |
d62a17ae | 352 | /* Clear all IBGP peer. */ |
353 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
354 | if (peer->sort != BGP_PEER_IBGP) | |
355 | continue; | |
718e3744 | 356 | |
d62a17ae | 357 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
358 | peer->last_reset = PEER_DOWN_CLID_CHANGE; | |
359 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
360 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
361 | } | |
362 | } | |
363 | return 0; | |
718e3744 | 364 | } |
365 | ||
d62a17ae | 366 | int bgp_cluster_id_unset(struct bgp *bgp) |
718e3744 | 367 | { |
d62a17ae | 368 | struct peer *peer; |
369 | struct listnode *node, *nnode; | |
718e3744 | 370 | |
d62a17ae | 371 | if (!bgp_config_check(bgp, BGP_CONFIG_CLUSTER_ID)) |
372 | return 0; | |
718e3744 | 373 | |
d62a17ae | 374 | bgp->cluster_id.s_addr = 0; |
375 | bgp_config_unset(bgp, BGP_CONFIG_CLUSTER_ID); | |
718e3744 | 376 | |
d62a17ae | 377 | /* Clear all IBGP peer. */ |
378 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
379 | if (peer->sort != BGP_PEER_IBGP) | |
380 | continue; | |
718e3744 | 381 | |
d62a17ae | 382 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
383 | peer->last_reset = PEER_DOWN_CLID_CHANGE; | |
384 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
385 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
386 | } | |
387 | } | |
388 | return 0; | |
718e3744 | 389 | } |
6b0655a2 | 390 | |
65957886 SH |
391 | /* time_t value that is monotonicly increasing |
392 | * and uneffected by adjustments to system clock | |
393 | */ | |
d62a17ae | 394 | time_t bgp_clock(void) |
65957886 | 395 | { |
d62a17ae | 396 | struct timeval tv; |
65957886 | 397 | |
d62a17ae | 398 | monotime(&tv); |
399 | return tv.tv_sec; | |
65957886 SH |
400 | } |
401 | ||
718e3744 | 402 | /* BGP timer configuration. */ |
d7c0a89a | 403 | int bgp_timers_set(struct bgp *bgp, uint32_t keepalive, uint32_t holdtime) |
718e3744 | 404 | { |
d62a17ae | 405 | bgp->default_keepalive = |
406 | (keepalive < holdtime / 3 ? keepalive : holdtime / 3); | |
407 | bgp->default_holdtime = holdtime; | |
718e3744 | 408 | |
d62a17ae | 409 | return 0; |
718e3744 | 410 | } |
411 | ||
d62a17ae | 412 | int bgp_timers_unset(struct bgp *bgp) |
718e3744 | 413 | { |
d62a17ae | 414 | bgp->default_keepalive = BGP_DEFAULT_KEEPALIVE; |
415 | bgp->default_holdtime = BGP_DEFAULT_HOLDTIME; | |
718e3744 | 416 | |
d62a17ae | 417 | return 0; |
718e3744 | 418 | } |
6b0655a2 | 419 | |
718e3744 | 420 | /* BGP confederation configuration. */ |
d62a17ae | 421 | int bgp_confederation_id_set(struct bgp *bgp, as_t as) |
422 | { | |
423 | struct peer *peer; | |
424 | struct listnode *node, *nnode; | |
425 | int already_confed; | |
426 | ||
427 | if (as == 0) | |
428 | return BGP_ERR_INVALID_AS; | |
429 | ||
430 | /* Remember - were we doing confederation before? */ | |
431 | already_confed = bgp_config_check(bgp, BGP_CONFIG_CONFEDERATION); | |
432 | bgp->confed_id = as; | |
433 | bgp_config_set(bgp, BGP_CONFIG_CONFEDERATION); | |
434 | ||
435 | /* If we were doing confederation already, this is just an external | |
436 | AS change. Just Reset EBGP sessions, not CONFED sessions. If we | |
437 | were not doing confederation before, reset all EBGP sessions. */ | |
438 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
439 | /* We're looking for peers who's AS is not local or part of our | |
440 | confederation. */ | |
441 | if (already_confed) { | |
442 | if (peer_sort(peer) == BGP_PEER_EBGP) { | |
443 | peer->local_as = as; | |
444 | if (BGP_IS_VALID_STATE_FOR_NOTIF( | |
445 | peer->status)) { | |
446 | peer->last_reset = | |
447 | PEER_DOWN_CONFED_ID_CHANGE; | |
448 | bgp_notify_send( | |
449 | peer, BGP_NOTIFY_CEASE, | |
450 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
451 | } else | |
452 | bgp_session_reset_safe(peer, &nnode); | |
453 | } | |
454 | } else { | |
455 | /* Not doign confederation before, so reset every | |
456 | non-local | |
457 | session */ | |
458 | if (peer_sort(peer) != BGP_PEER_IBGP) { | |
459 | /* Reset the local_as to be our EBGP one */ | |
460 | if (peer_sort(peer) == BGP_PEER_EBGP) | |
461 | peer->local_as = as; | |
462 | if (BGP_IS_VALID_STATE_FOR_NOTIF( | |
463 | peer->status)) { | |
464 | peer->last_reset = | |
465 | PEER_DOWN_CONFED_ID_CHANGE; | |
466 | bgp_notify_send( | |
467 | peer, BGP_NOTIFY_CEASE, | |
468 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
469 | } else | |
470 | bgp_session_reset_safe(peer, &nnode); | |
471 | } | |
472 | } | |
718e3744 | 473 | } |
d62a17ae | 474 | return 0; |
718e3744 | 475 | } |
476 | ||
d62a17ae | 477 | int bgp_confederation_id_unset(struct bgp *bgp) |
718e3744 | 478 | { |
d62a17ae | 479 | struct peer *peer; |
480 | struct listnode *node, *nnode; | |
481 | ||
482 | bgp->confed_id = 0; | |
483 | bgp_config_unset(bgp, BGP_CONFIG_CONFEDERATION); | |
718e3744 | 484 | |
d62a17ae | 485 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { |
486 | /* We're looking for peers who's AS is not local */ | |
487 | if (peer_sort(peer) != BGP_PEER_IBGP) { | |
488 | peer->local_as = bgp->as; | |
489 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
490 | peer->last_reset = PEER_DOWN_CONFED_ID_CHANGE; | |
491 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
492 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
493 | } | |
718e3744 | 494 | |
d62a17ae | 495 | else |
496 | bgp_session_reset_safe(peer, &nnode); | |
497 | } | |
498 | } | |
499 | return 0; | |
718e3744 | 500 | } |
501 | ||
d62a17ae | 502 | /* Is an AS part of the confed or not? */ |
503 | int bgp_confederation_peers_check(struct bgp *bgp, as_t as) | |
718e3744 | 504 | { |
d62a17ae | 505 | int i; |
718e3744 | 506 | |
d62a17ae | 507 | if (!bgp) |
508 | return 0; | |
718e3744 | 509 | |
d62a17ae | 510 | for (i = 0; i < bgp->confed_peers_cnt; i++) |
511 | if (bgp->confed_peers[i] == as) | |
512 | return 1; | |
718e3744 | 513 | |
d62a17ae | 514 | return 0; |
515 | } | |
718e3744 | 516 | |
d62a17ae | 517 | /* Add an AS to the confederation set. */ |
518 | int bgp_confederation_peers_add(struct bgp *bgp, as_t as) | |
519 | { | |
520 | struct peer *peer; | |
521 | struct listnode *node, *nnode; | |
522 | ||
523 | if (!bgp) | |
524 | return BGP_ERR_INVALID_BGP; | |
525 | ||
526 | if (bgp->as == as) | |
527 | return BGP_ERR_INVALID_AS; | |
528 | ||
529 | if (bgp_confederation_peers_check(bgp, as)) | |
530 | return -1; | |
531 | ||
532 | if (bgp->confed_peers) | |
533 | bgp->confed_peers = | |
534 | XREALLOC(MTYPE_BGP_CONFED_LIST, bgp->confed_peers, | |
535 | (bgp->confed_peers_cnt + 1) * sizeof(as_t)); | |
536 | else | |
537 | bgp->confed_peers = | |
538 | XMALLOC(MTYPE_BGP_CONFED_LIST, | |
539 | (bgp->confed_peers_cnt + 1) * sizeof(as_t)); | |
540 | ||
541 | bgp->confed_peers[bgp->confed_peers_cnt] = as; | |
542 | bgp->confed_peers_cnt++; | |
543 | ||
544 | if (bgp_config_check(bgp, BGP_CONFIG_CONFEDERATION)) { | |
545 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
546 | if (peer->as == as) { | |
547 | peer->local_as = bgp->as; | |
548 | if (BGP_IS_VALID_STATE_FOR_NOTIF( | |
549 | peer->status)) { | |
550 | peer->last_reset = | |
551 | PEER_DOWN_CONFED_PEER_CHANGE; | |
552 | bgp_notify_send( | |
553 | peer, BGP_NOTIFY_CEASE, | |
554 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
555 | } else | |
556 | bgp_session_reset_safe(peer, &nnode); | |
557 | } | |
558 | } | |
559 | } | |
560 | return 0; | |
718e3744 | 561 | } |
562 | ||
563 | /* Delete an AS from the confederation set. */ | |
d62a17ae | 564 | int bgp_confederation_peers_remove(struct bgp *bgp, as_t as) |
565 | { | |
566 | int i; | |
567 | int j; | |
568 | struct peer *peer; | |
569 | struct listnode *node, *nnode; | |
570 | ||
571 | if (!bgp) | |
572 | return -1; | |
573 | ||
574 | if (!bgp_confederation_peers_check(bgp, as)) | |
575 | return -1; | |
576 | ||
577 | for (i = 0; i < bgp->confed_peers_cnt; i++) | |
578 | if (bgp->confed_peers[i] == as) | |
579 | for (j = i + 1; j < bgp->confed_peers_cnt; j++) | |
580 | bgp->confed_peers[j - 1] = bgp->confed_peers[j]; | |
581 | ||
582 | bgp->confed_peers_cnt--; | |
583 | ||
584 | if (bgp->confed_peers_cnt == 0) { | |
585 | if (bgp->confed_peers) | |
586 | XFREE(MTYPE_BGP_CONFED_LIST, bgp->confed_peers); | |
587 | bgp->confed_peers = NULL; | |
588 | } else | |
589 | bgp->confed_peers = | |
590 | XREALLOC(MTYPE_BGP_CONFED_LIST, bgp->confed_peers, | |
591 | bgp->confed_peers_cnt * sizeof(as_t)); | |
592 | ||
593 | /* Now reset any peer who's remote AS has just been removed from the | |
594 | CONFED */ | |
595 | if (bgp_config_check(bgp, BGP_CONFIG_CONFEDERATION)) { | |
596 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
597 | if (peer->as == as) { | |
598 | peer->local_as = bgp->confed_id; | |
599 | if (BGP_IS_VALID_STATE_FOR_NOTIF( | |
600 | peer->status)) { | |
601 | peer->last_reset = | |
602 | PEER_DOWN_CONFED_PEER_CHANGE; | |
603 | bgp_notify_send( | |
604 | peer, BGP_NOTIFY_CEASE, | |
605 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
606 | } else | |
607 | bgp_session_reset_safe(peer, &nnode); | |
608 | } | |
609 | } | |
718e3744 | 610 | } |
718e3744 | 611 | |
d62a17ae | 612 | return 0; |
718e3744 | 613 | } |
6b0655a2 | 614 | |
718e3744 | 615 | /* Local preference configuration. */ |
d7c0a89a | 616 | int bgp_default_local_preference_set(struct bgp *bgp, uint32_t local_pref) |
718e3744 | 617 | { |
d62a17ae | 618 | if (!bgp) |
619 | return -1; | |
718e3744 | 620 | |
d62a17ae | 621 | bgp->default_local_pref = local_pref; |
718e3744 | 622 | |
d62a17ae | 623 | return 0; |
718e3744 | 624 | } |
625 | ||
d62a17ae | 626 | int bgp_default_local_preference_unset(struct bgp *bgp) |
718e3744 | 627 | { |
d62a17ae | 628 | if (!bgp) |
629 | return -1; | |
718e3744 | 630 | |
d62a17ae | 631 | bgp->default_local_pref = BGP_DEFAULT_LOCAL_PREF; |
718e3744 | 632 | |
d62a17ae | 633 | return 0; |
718e3744 | 634 | } |
6b0655a2 | 635 | |
3f9c7369 | 636 | /* Local preference configuration. */ |
d7c0a89a | 637 | int bgp_default_subgroup_pkt_queue_max_set(struct bgp *bgp, uint32_t queue_size) |
3f9c7369 | 638 | { |
d62a17ae | 639 | if (!bgp) |
640 | return -1; | |
3f9c7369 | 641 | |
d62a17ae | 642 | bgp->default_subgroup_pkt_queue_max = queue_size; |
3f9c7369 | 643 | |
d62a17ae | 644 | return 0; |
3f9c7369 DS |
645 | } |
646 | ||
d62a17ae | 647 | int bgp_default_subgroup_pkt_queue_max_unset(struct bgp *bgp) |
3f9c7369 | 648 | { |
d62a17ae | 649 | if (!bgp) |
650 | return -1; | |
651 | bgp->default_subgroup_pkt_queue_max = | |
652 | BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX; | |
3f9c7369 | 653 | |
d62a17ae | 654 | return 0; |
3f9c7369 DS |
655 | } |
656 | ||
f14e6fdb | 657 | /* Listen limit configuration. */ |
d62a17ae | 658 | int bgp_listen_limit_set(struct bgp *bgp, int listen_limit) |
f14e6fdb | 659 | { |
d62a17ae | 660 | if (!bgp) |
661 | return -1; | |
f14e6fdb | 662 | |
d62a17ae | 663 | bgp->dynamic_neighbors_limit = listen_limit; |
f14e6fdb | 664 | |
d62a17ae | 665 | return 0; |
f14e6fdb DS |
666 | } |
667 | ||
d62a17ae | 668 | int bgp_listen_limit_unset(struct bgp *bgp) |
f14e6fdb | 669 | { |
d62a17ae | 670 | if (!bgp) |
671 | return -1; | |
f14e6fdb | 672 | |
d62a17ae | 673 | bgp->dynamic_neighbors_limit = BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT; |
f14e6fdb | 674 | |
d62a17ae | 675 | return 0; |
f14e6fdb DS |
676 | } |
677 | ||
5c525538 RW |
678 | int bgp_map_afi_safi_iana2int(iana_afi_t pkt_afi, iana_safi_t pkt_safi, |
679 | afi_t *afi, safi_t *safi) | |
9cabb64b | 680 | { |
d62a17ae | 681 | /* Map from IANA values to internal values, return error if |
682 | * values are unrecognized. | |
683 | */ | |
684 | *afi = afi_iana2int(pkt_afi); | |
685 | *safi = safi_iana2int(pkt_safi); | |
686 | if (*afi == AFI_MAX || *safi == SAFI_MAX) | |
687 | return -1; | |
9cabb64b | 688 | |
d62a17ae | 689 | return 0; |
9cabb64b | 690 | } |
691 | ||
d62a17ae | 692 | int bgp_map_afi_safi_int2iana(afi_t afi, safi_t safi, iana_afi_t *pkt_afi, |
5c525538 | 693 | iana_safi_t *pkt_safi) |
9cabb64b | 694 | { |
d62a17ae | 695 | /* Map from internal values to IANA values, return error if |
696 | * internal values are bad (unexpected). | |
697 | */ | |
698 | if (afi == AFI_MAX || safi == SAFI_MAX) | |
699 | return -1; | |
700 | *pkt_afi = afi_int2iana(afi); | |
701 | *pkt_safi = safi_int2iana(safi); | |
702 | return 0; | |
9cabb64b | 703 | } |
704 | ||
d62a17ae | 705 | struct peer_af *peer_af_create(struct peer *peer, afi_t afi, safi_t safi) |
3f9c7369 | 706 | { |
d62a17ae | 707 | struct peer_af *af; |
708 | int afid; | |
3f9c7369 | 709 | |
d62a17ae | 710 | if (!peer) |
711 | return NULL; | |
3f9c7369 | 712 | |
d62a17ae | 713 | afid = afindex(afi, safi); |
714 | if (afid >= BGP_AF_MAX) | |
715 | return NULL; | |
3f9c7369 | 716 | |
d62a17ae | 717 | assert(peer->peer_af_array[afid] == NULL); |
3f9c7369 | 718 | |
d62a17ae | 719 | /* Allocate new peer af */ |
720 | af = XCALLOC(MTYPE_BGP_PEER_AF, sizeof(struct peer_af)); | |
c8560b44 | 721 | |
d62a17ae | 722 | peer->peer_af_array[afid] = af; |
723 | af->afi = afi; | |
724 | af->safi = safi; | |
725 | af->afid = afid; | |
726 | af->peer = peer; | |
3f9c7369 | 727 | |
d62a17ae | 728 | return af; |
3f9c7369 DS |
729 | } |
730 | ||
d62a17ae | 731 | struct peer_af *peer_af_find(struct peer *peer, afi_t afi, safi_t safi) |
3f9c7369 | 732 | { |
d62a17ae | 733 | int afid; |
3f9c7369 | 734 | |
d62a17ae | 735 | if (!peer) |
736 | return NULL; | |
3f9c7369 | 737 | |
d62a17ae | 738 | afid = afindex(afi, safi); |
739 | if (afid >= BGP_AF_MAX) | |
740 | return NULL; | |
3f9c7369 | 741 | |
d62a17ae | 742 | return peer->peer_af_array[afid]; |
3f9c7369 DS |
743 | } |
744 | ||
d62a17ae | 745 | int peer_af_delete(struct peer *peer, afi_t afi, safi_t safi) |
3f9c7369 | 746 | { |
d62a17ae | 747 | struct peer_af *af; |
748 | int afid; | |
3f9c7369 | 749 | |
d62a17ae | 750 | if (!peer) |
751 | return -1; | |
3f9c7369 | 752 | |
d62a17ae | 753 | afid = afindex(afi, safi); |
754 | if (afid >= BGP_AF_MAX) | |
755 | return -1; | |
3f9c7369 | 756 | |
d62a17ae | 757 | af = peer->peer_af_array[afid]; |
758 | if (!af) | |
759 | return -1; | |
3f9c7369 | 760 | |
d62a17ae | 761 | bgp_stop_announce_route_timer(af); |
3f9c7369 | 762 | |
d62a17ae | 763 | if (PAF_SUBGRP(af)) { |
764 | if (BGP_DEBUG(update_groups, UPDATE_GROUPS)) | |
765 | zlog_debug("u%" PRIu64 ":s%" PRIu64 " remove peer %s", | |
766 | af->subgroup->update_group->id, | |
767 | af->subgroup->id, peer->host); | |
768 | } | |
3f9c7369 | 769 | |
d62a17ae | 770 | update_subgroup_remove_peer(af->subgroup, af); |
3f9c7369 | 771 | |
d62a17ae | 772 | peer->peer_af_array[afid] = NULL; |
773 | XFREE(MTYPE_BGP_PEER_AF, af); | |
774 | return 0; | |
3f9c7369 DS |
775 | } |
776 | ||
eb821189 | 777 | /* Peer comparison function for sorting. */ |
d62a17ae | 778 | int peer_cmp(struct peer *p1, struct peer *p2) |
718e3744 | 779 | { |
d62a17ae | 780 | if (p1->group && !p2->group) |
781 | return -1; | |
0aaa34db | 782 | |
d62a17ae | 783 | if (!p1->group && p2->group) |
784 | return 1; | |
0aaa34db | 785 | |
d62a17ae | 786 | if (p1->group == p2->group) { |
787 | if (p1->conf_if && !p2->conf_if) | |
788 | return -1; | |
0aaa34db | 789 | |
d62a17ae | 790 | if (!p1->conf_if && p2->conf_if) |
791 | return 1; | |
0aaa34db | 792 | |
d62a17ae | 793 | if (p1->conf_if && p2->conf_if) |
794 | return if_cmp_name_func(p1->conf_if, p2->conf_if); | |
795 | } else | |
796 | return strcmp(p1->group->name, p2->group->name); | |
0aaa34db | 797 | |
d62a17ae | 798 | return sockunion_cmp(&p1->su, &p2->su); |
718e3744 | 799 | } |
800 | ||
d62a17ae | 801 | static unsigned int peer_hash_key_make(void *p) |
dd793e4a | 802 | { |
d62a17ae | 803 | struct peer *peer = p; |
804 | return sockunion_hash(&peer->su); | |
dd793e4a DW |
805 | } |
806 | ||
74df8d6d | 807 | static bool peer_hash_same(const void *p1, const void *p2) |
dd793e4a | 808 | { |
d62a17ae | 809 | const struct peer *peer1 = p1; |
810 | const struct peer *peer2 = p2; | |
811 | return (sockunion_same(&peer1->su, &peer2->su) | |
812 | && CHECK_FLAG(peer1->flags, PEER_FLAG_CONFIG_NODE) | |
813 | == CHECK_FLAG(peer2->flags, PEER_FLAG_CONFIG_NODE)); | |
dd793e4a DW |
814 | } |
815 | ||
9fb964de PM |
816 | void peer_flag_inherit(struct peer *peer, uint32_t flag) |
817 | { | |
818 | bool group_val; | |
819 | ||
820 | /* Skip if peer is not a peer-group member. */ | |
821 | if (!peer_group_active(peer)) | |
822 | return; | |
823 | ||
824 | /* Unset override flag to signal inheritance from peer-group. */ | |
825 | UNSET_FLAG(peer->flags_override, flag); | |
826 | ||
827 | /* | |
828 | * Inherit flag state from peer-group. If the flag of the peer-group is | |
829 | * not being inverted, the peer must inherit the inverse of the current | |
830 | * peer-group flag state. | |
831 | */ | |
832 | group_val = CHECK_FLAG(peer->group->conf->flags, flag); | |
833 | if (!CHECK_FLAG(peer->group->conf->flags_invert, flag) | |
834 | && CHECK_FLAG(peer->flags_invert, flag)) | |
835 | COND_FLAG(peer->flags, flag, !group_val); | |
836 | else | |
837 | COND_FLAG(peer->flags, flag, group_val); | |
838 | } | |
839 | ||
d7c0a89a | 840 | int peer_af_flag_check(struct peer *peer, afi_t afi, safi_t safi, uint32_t flag) |
718e3744 | 841 | { |
d62a17ae | 842 | return CHECK_FLAG(peer->af_flags[afi][safi], flag); |
718e3744 | 843 | } |
844 | ||
598ce6bd PM |
845 | void peer_af_flag_inherit(struct peer *peer, afi_t afi, safi_t safi, |
846 | uint32_t flag) | |
88b8ed8d | 847 | { |
527de3dc PM |
848 | bool group_val; |
849 | ||
598ce6bd PM |
850 | /* Skip if peer is not a peer-group member. */ |
851 | if (!peer_group_active(peer)) | |
852 | return; | |
88b8ed8d | 853 | |
598ce6bd PM |
854 | /* Unset override flag to signal inheritance from peer-group. */ |
855 | UNSET_FLAG(peer->af_flags_override[afi][safi], flag); | |
88b8ed8d | 856 | |
527de3dc PM |
857 | /* |
858 | * Inherit flag state from peer-group. If the flag of the peer-group is | |
859 | * not being inverted, the peer must inherit the inverse of the current | |
860 | * peer-group flag state. | |
861 | */ | |
862 | group_val = CHECK_FLAG(peer->group->conf->af_flags[afi][safi], flag); | |
863 | if (!CHECK_FLAG(peer->group->conf->af_flags_invert[afi][safi], flag) | |
864 | && CHECK_FLAG(peer->af_flags_invert[afi][safi], flag)) | |
865 | COND_FLAG(peer->af_flags[afi][safi], flag, !group_val); | |
598ce6bd | 866 | else |
527de3dc | 867 | COND_FLAG(peer->af_flags[afi][safi], flag, group_val); |
598ce6bd | 868 | } |
88b8ed8d | 869 | |
9fb964de PM |
870 | static bool peergroup_flag_check(struct peer *peer, uint32_t flag) |
871 | { | |
872 | if (!peer_group_active(peer)) { | |
873 | if (CHECK_FLAG(peer->flags_invert, flag)) | |
874 | return !CHECK_FLAG(peer->flags, flag); | |
875 | else | |
876 | return !!CHECK_FLAG(peer->flags, flag); | |
877 | } | |
878 | ||
879 | return !!CHECK_FLAG(peer->flags_override, flag); | |
880 | } | |
881 | ||
598ce6bd PM |
882 | static bool peergroup_af_flag_check(struct peer *peer, afi_t afi, safi_t safi, |
883 | uint32_t flag) | |
884 | { | |
27c05d4d PM |
885 | if (!peer_group_active(peer)) { |
886 | if (CHECK_FLAG(peer->af_flags_invert[afi][safi], flag)) | |
887 | return !peer_af_flag_check(peer, afi, safi, flag); | |
888 | else | |
889 | return !!peer_af_flag_check(peer, afi, safi, flag); | |
d62a17ae | 890 | } |
88b8ed8d | 891 | |
598ce6bd | 892 | return !!CHECK_FLAG(peer->af_flags_override[afi][safi], flag); |
88b8ed8d DW |
893 | } |
894 | ||
70ee29b4 PM |
895 | static bool peergroup_filter_check(struct peer *peer, afi_t afi, safi_t safi, |
896 | uint8_t type, int direct) | |
897 | { | |
898 | struct bgp_filter *filter; | |
899 | ||
900 | if (peer_group_active(peer)) | |
901 | return !!CHECK_FLAG(peer->filter_override[afi][safi][direct], | |
902 | type); | |
903 | ||
904 | filter = &peer->filter[afi][safi]; | |
905 | switch (type) { | |
906 | case PEER_FT_DISTRIBUTE_LIST: | |
907 | return !!(filter->dlist[direct].name); | |
908 | case PEER_FT_FILTER_LIST: | |
909 | return !!(filter->aslist[direct].name); | |
910 | case PEER_FT_PREFIX_LIST: | |
911 | return !!(filter->plist[direct].name); | |
912 | case PEER_FT_ROUTE_MAP: | |
913 | return !!(filter->map[direct].name); | |
914 | case PEER_FT_UNSUPPRESS_MAP: | |
915 | return !!(filter->usmap.name); | |
916 | default: | |
917 | return false; | |
918 | } | |
88b8ed8d DW |
919 | } |
920 | ||
dcc68b5e MS |
921 | /* Return true if the addpath type is set for peer and different from |
922 | * peer-group. | |
923 | */ | |
924 | static int peergroup_af_addpath_check(struct peer *peer, afi_t afi, safi_t safi) | |
925 | { | |
926 | enum bgp_addpath_strat type, g_type; | |
927 | ||
928 | type = peer->addpath_type[afi][safi]; | |
929 | ||
930 | if (type != BGP_ADDPATH_NONE) { | |
931 | if (peer_group_active(peer)) { | |
932 | g_type = peer->group->conf->addpath_type[afi][safi]; | |
933 | ||
934 | if (type != g_type) | |
935 | return 1; | |
936 | else | |
937 | return 0; | |
938 | } | |
939 | ||
940 | return 1; | |
941 | } | |
942 | ||
943 | return 0; | |
944 | } | |
945 | ||
6d85b15b | 946 | /* Check peer's AS number and determines if this peer is IBGP or EBGP */ |
82417ac2 | 947 | static inline bgp_peer_sort_t peer_calc_sort(struct peer *peer) |
718e3744 | 948 | { |
d62a17ae | 949 | struct bgp *bgp; |
718e3744 | 950 | |
d62a17ae | 951 | bgp = peer->bgp; |
718e3744 | 952 | |
d62a17ae | 953 | /* Peer-group */ |
954 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
955 | if (peer->as_type == AS_INTERNAL) | |
956 | return BGP_PEER_IBGP; | |
66b199b2 | 957 | |
d62a17ae | 958 | else if (peer->as_type == AS_EXTERNAL) |
959 | return BGP_PEER_EBGP; | |
66b199b2 | 960 | |
b575a12c A |
961 | else if (peer->as_type == AS_SPECIFIED && peer->as) { |
962 | assert(bgp); | |
d62a17ae | 963 | return (bgp->as == peer->as ? BGP_PEER_IBGP |
964 | : BGP_PEER_EBGP); | |
b575a12c | 965 | } |
66b199b2 | 966 | |
d62a17ae | 967 | else { |
968 | struct peer *peer1; | |
d4f8b537 | 969 | |
970 | assert(peer->group); | |
d62a17ae | 971 | peer1 = listnode_head(peer->group->peer); |
972 | ||
973 | if (peer1) | |
974 | return peer1->sort; | |
975 | } | |
976 | return BGP_PEER_INTERNAL; | |
977 | } | |
978 | ||
979 | /* Normal peer */ | |
980 | if (bgp && CHECK_FLAG(bgp->config, BGP_CONFIG_CONFEDERATION)) { | |
981 | if (peer->local_as == 0) | |
982 | return BGP_PEER_INTERNAL; | |
983 | ||
984 | if (peer->local_as == peer->as) { | |
985 | if (bgp->as == bgp->confed_id) { | |
986 | if (peer->local_as == bgp->as) | |
987 | return BGP_PEER_IBGP; | |
988 | else | |
989 | return BGP_PEER_EBGP; | |
990 | } else { | |
991 | if (peer->local_as == bgp->confed_id) | |
992 | return BGP_PEER_EBGP; | |
993 | else | |
994 | return BGP_PEER_IBGP; | |
995 | } | |
996 | } | |
997 | ||
998 | if (bgp_confederation_peers_check(bgp, peer->as)) | |
999 | return BGP_PEER_CONFED; | |
1000 | ||
1001 | return BGP_PEER_EBGP; | |
1002 | } else { | |
1003 | if (peer->as_type != AS_SPECIFIED) | |
1004 | return (peer->as_type == AS_INTERNAL ? BGP_PEER_IBGP | |
1005 | : BGP_PEER_EBGP); | |
1006 | ||
1007 | return (peer->local_as == 0 | |
1008 | ? BGP_PEER_INTERNAL | |
1009 | : peer->local_as == peer->as ? BGP_PEER_IBGP | |
1010 | : BGP_PEER_EBGP); | |
1011 | } | |
718e3744 | 1012 | } |
1013 | ||
6d85b15b | 1014 | /* Calculate and cache the peer "sort" */ |
d62a17ae | 1015 | bgp_peer_sort_t peer_sort(struct peer *peer) |
1016 | { | |
1017 | peer->sort = peer_calc_sort(peer); | |
1018 | return peer->sort; | |
1019 | } | |
1020 | ||
1021 | static void peer_free(struct peer *peer) | |
1022 | { | |
dcc68b5e MS |
1023 | afi_t afi; |
1024 | safi_t safi; | |
1025 | ||
d62a17ae | 1026 | assert(peer->status == Deleted); |
1027 | ||
1028 | QOBJ_UNREG(peer); | |
1029 | ||
1030 | /* this /ought/ to have been done already through bgp_stop earlier, | |
1031 | * but just to be sure.. | |
1032 | */ | |
1033 | bgp_timer_set(peer); | |
424ab01d QY |
1034 | bgp_reads_off(peer); |
1035 | bgp_writes_off(peer); | |
1036 | assert(!peer->t_write); | |
1037 | assert(!peer->t_read); | |
d62a17ae | 1038 | BGP_EVENT_FLUSH(peer); |
1039 | ||
424ab01d QY |
1040 | pthread_mutex_destroy(&peer->io_mtx); |
1041 | ||
d62a17ae | 1042 | /* Free connected nexthop, if present */ |
1043 | if (CHECK_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE) | |
1044 | && !peer_dynamic_neighbor(peer)) | |
1045 | bgp_delete_connected_nexthop(family2afi(peer->su.sa.sa_family), | |
1046 | peer); | |
1047 | ||
1048 | XFREE(MTYPE_PEER_TX_SHUTDOWN_MSG, peer->tx_shutdown_message); | |
1049 | ||
1050 | if (peer->desc) { | |
1051 | XFREE(MTYPE_PEER_DESC, peer->desc); | |
1052 | peer->desc = NULL; | |
1053 | } | |
1054 | ||
1055 | /* Free allocated host character. */ | |
1056 | if (peer->host) { | |
1057 | XFREE(MTYPE_BGP_PEER_HOST, peer->host); | |
1058 | peer->host = NULL; | |
1059 | } | |
1060 | ||
1061 | if (peer->domainname) { | |
1062 | XFREE(MTYPE_BGP_PEER_HOST, peer->domainname); | |
1063 | peer->domainname = NULL; | |
1064 | } | |
1065 | ||
1066 | if (peer->ifname) { | |
1067 | XFREE(MTYPE_BGP_PEER_IFNAME, peer->ifname); | |
1068 | peer->ifname = NULL; | |
1069 | } | |
1070 | ||
1071 | /* Update source configuration. */ | |
1072 | if (peer->update_source) { | |
1073 | sockunion_free(peer->update_source); | |
1074 | peer->update_source = NULL; | |
1075 | } | |
1076 | ||
1077 | if (peer->update_if) { | |
1078 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); | |
1079 | peer->update_if = NULL; | |
1080 | } | |
1081 | ||
1082 | if (peer->notify.data) | |
1083 | XFREE(MTYPE_TMP, peer->notify.data); | |
1084 | memset(&peer->notify, 0, sizeof(struct bgp_notify)); | |
1085 | ||
e208c8f9 DS |
1086 | if (peer->clear_node_queue) |
1087 | work_queue_free_and_null(&peer->clear_node_queue); | |
d62a17ae | 1088 | |
1089 | bgp_sync_delete(peer); | |
1090 | ||
1091 | if (peer->conf_if) { | |
1092 | XFREE(MTYPE_PEER_CONF_IF, peer->conf_if); | |
1093 | peer->conf_if = NULL; | |
1094 | } | |
1095 | ||
1096 | bfd_info_free(&(peer->bfd_info)); | |
1097 | ||
dcc68b5e MS |
1098 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
1099 | for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++) { | |
1100 | bgp_addpath_set_peer_type(peer, afi, safi, | |
1101 | BGP_ADDPATH_NONE); | |
1102 | } | |
1103 | } | |
1104 | ||
d62a17ae | 1105 | bgp_unlock(peer->bgp); |
1106 | ||
1107 | memset(peer, 0, sizeof(struct peer)); | |
1108 | ||
1109 | XFREE(MTYPE_BGP_PEER, peer); | |
1110 | } | |
1111 | ||
200df115 | 1112 | /* increase reference count on a struct peer */ |
d62a17ae | 1113 | struct peer *peer_lock_with_caller(const char *name, struct peer *peer) |
200df115 | 1114 | { |
d62a17ae | 1115 | assert(peer && (peer->lock >= 0)); |
28066f4b DS |
1116 | |
1117 | #if 0 | |
1118 | zlog_debug("%s peer_lock %p %d", name, peer, peer->lock); | |
1119 | #endif | |
d62a17ae | 1120 | |
1121 | peer->lock++; | |
1122 | ||
1123 | return peer; | |
200df115 | 1124 | } |
1125 | ||
1126 | /* decrease reference count on a struct peer | |
1127 | * struct peer is freed and NULL returned if last reference | |
1128 | */ | |
d62a17ae | 1129 | struct peer *peer_unlock_with_caller(const char *name, struct peer *peer) |
200df115 | 1130 | { |
d62a17ae | 1131 | assert(peer && (peer->lock > 0)); |
28066f4b DS |
1132 | |
1133 | #if 0 | |
1134 | zlog_debug("%s peer_unlock %p %d", name, peer, peer->lock); | |
1135 | #endif | |
200df115 | 1136 | |
d62a17ae | 1137 | peer->lock--; |
1138 | ||
1139 | if (peer->lock == 0) { | |
1140 | peer_free(peer); | |
1141 | return NULL; | |
1142 | } | |
1143 | ||
1144 | return peer; | |
200df115 | 1145 | } |
1ff9a340 | 1146 | |
200df115 | 1147 | /* Allocate new peer object, implicitely locked. */ |
d62a17ae | 1148 | struct peer *peer_new(struct bgp *bgp) |
1149 | { | |
1150 | afi_t afi; | |
1151 | safi_t safi; | |
1152 | struct peer *peer; | |
1153 | struct servent *sp; | |
1154 | ||
1155 | /* bgp argument is absolutely required */ | |
1156 | assert(bgp); | |
1157 | if (!bgp) | |
1158 | return NULL; | |
1159 | ||
1160 | /* Allocate new peer. */ | |
1161 | peer = XCALLOC(MTYPE_BGP_PEER, sizeof(struct peer)); | |
1162 | ||
1163 | /* Set default value. */ | |
1164 | peer->fd = -1; | |
1165 | peer->v_start = BGP_INIT_START_TIMER; | |
1166 | peer->v_connect = BGP_DEFAULT_CONNECT_RETRY; | |
1167 | peer->status = Idle; | |
1168 | peer->ostatus = Idle; | |
1169 | peer->cur_event = peer->last_event = peer->last_major_event = 0; | |
92375c91 | 1170 | peer->bgp = bgp_lock(bgp); |
d62a17ae | 1171 | peer = peer_lock(peer); /* initial reference */ |
d62a17ae | 1172 | peer->password = NULL; |
1173 | ||
27c05d4d | 1174 | /* Set default flags. */ |
05c7a1cc QY |
1175 | FOREACH_AFI_SAFI (afi, safi) { |
1176 | if (!bgp_option_check(BGP_OPT_CONFIG_CISCO)) { | |
1177 | SET_FLAG(peer->af_flags[afi][safi], | |
1178 | PEER_FLAG_SEND_COMMUNITY); | |
1179 | SET_FLAG(peer->af_flags[afi][safi], | |
1180 | PEER_FLAG_SEND_EXT_COMMUNITY); | |
1181 | SET_FLAG(peer->af_flags[afi][safi], | |
1182 | PEER_FLAG_SEND_LARGE_COMMUNITY); | |
27c05d4d PM |
1183 | |
1184 | SET_FLAG(peer->af_flags_invert[afi][safi], | |
1185 | PEER_FLAG_SEND_COMMUNITY); | |
1186 | SET_FLAG(peer->af_flags_invert[afi][safi], | |
1187 | PEER_FLAG_SEND_EXT_COMMUNITY); | |
1188 | SET_FLAG(peer->af_flags_invert[afi][safi], | |
1189 | PEER_FLAG_SEND_LARGE_COMMUNITY); | |
d62a17ae | 1190 | } |
dcc68b5e | 1191 | peer->addpath_type[afi][safi] = BGP_ADDPATH_NONE; |
05c7a1cc | 1192 | } |
637315fc MK |
1193 | |
1194 | /* set nexthop-unchanged for l2vpn evpn by default */ | |
1195 | SET_FLAG(peer->af_flags[AFI_L2VPN][SAFI_EVPN], | |
1196 | PEER_FLAG_NEXTHOP_UNCHANGED); | |
1197 | ||
d62a17ae | 1198 | SET_FLAG(peer->sflags, PEER_STATUS_CAPABILITY_OPEN); |
718e3744 | 1199 | |
d62a17ae | 1200 | /* Create buffers. */ |
424ab01d | 1201 | peer->ibuf = stream_fifo_new(); |
d62a17ae | 1202 | peer->obuf = stream_fifo_new(); |
424ab01d | 1203 | pthread_mutex_init(&peer->io_mtx, NULL); |
0a91ff55 | 1204 | |
424ab01d | 1205 | /* We use a larger buffer for peer->obuf_work in the event that: |
d62a17ae | 1206 | * - We RX a BGP_UPDATE where the attributes alone are just |
1207 | * under BGP_MAX_PACKET_SIZE | |
1208 | * - The user configures an outbound route-map that does many as-path | |
09f6d019 QY |
1209 | * prepends or adds many communities. At most they can have |
1210 | * CMD_ARGC_MAX args in a route-map so there is a finite limit on how | |
1211 | * large they can make the attributes. | |
d62a17ae | 1212 | * |
1213 | * Having a buffer with BGP_MAX_PACKET_SIZE_OVERFLOW allows us to avoid | |
09f6d019 QY |
1214 | * bounds checking for every single attribute as we construct an |
1215 | * UPDATE. | |
d62a17ae | 1216 | */ |
424ab01d | 1217 | peer->obuf_work = |
d62a17ae | 1218 | stream_new(BGP_MAX_PACKET_SIZE + BGP_MAX_PACKET_SIZE_OVERFLOW); |
74ffbfe6 QY |
1219 | peer->ibuf_work = |
1220 | ringbuf_new(BGP_MAX_PACKET_SIZE * BGP_READ_PACKET_MAX); | |
1221 | ||
d62a17ae | 1222 | peer->scratch = stream_new(BGP_MAX_PACKET_SIZE); |
718e3744 | 1223 | |
d62a17ae | 1224 | bgp_sync_init(peer); |
718e3744 | 1225 | |
d62a17ae | 1226 | /* Get service port number. */ |
1227 | sp = getservbyname("bgp", "tcp"); | |
1228 | peer->port = (sp == NULL) ? BGP_PORT_DEFAULT : ntohs(sp->s_port); | |
718e3744 | 1229 | |
d62a17ae | 1230 | QOBJ_REG(peer, peer); |
1231 | return peer; | |
718e3744 | 1232 | } |
1233 | ||
1ff9a340 DS |
1234 | /* |
1235 | * This function is invoked when a duplicate peer structure associated with | |
1236 | * a neighbor is being deleted. If this about-to-be-deleted structure is | |
1237 | * the one with all the config, then we have to copy over the info. | |
1238 | */ | |
d62a17ae | 1239 | void peer_xfer_config(struct peer *peer_dst, struct peer *peer_src) |
1240 | { | |
1241 | struct peer_af *paf; | |
1242 | afi_t afi; | |
1243 | safi_t safi; | |
1244 | int afidx; | |
1245 | ||
1246 | assert(peer_src); | |
1247 | assert(peer_dst); | |
1248 | ||
1249 | /* The following function is used by both peer group config copy to | |
1250 | * individual peer and when we transfer config | |
1251 | */ | |
1252 | if (peer_src->change_local_as) | |
1253 | peer_dst->change_local_as = peer_src->change_local_as; | |
1254 | ||
1255 | /* peer flags apply */ | |
1256 | peer_dst->flags = peer_src->flags; | |
1257 | peer_dst->cap = peer_src->cap; | |
d62a17ae | 1258 | |
1259 | peer_dst->local_as = peer_src->local_as; | |
d62a17ae | 1260 | peer_dst->port = peer_src->port; |
82417ac2 | 1261 | (void)peer_sort(peer_dst); |
d62a17ae | 1262 | peer_dst->rmap_type = peer_src->rmap_type; |
1263 | ||
1264 | /* Timers */ | |
1265 | peer_dst->holdtime = peer_src->holdtime; | |
1266 | peer_dst->keepalive = peer_src->keepalive; | |
1267 | peer_dst->connect = peer_src->connect; | |
1268 | peer_dst->v_holdtime = peer_src->v_holdtime; | |
1269 | peer_dst->v_keepalive = peer_src->v_keepalive; | |
1270 | peer_dst->routeadv = peer_src->routeadv; | |
1271 | peer_dst->v_routeadv = peer_src->v_routeadv; | |
1272 | ||
1273 | /* password apply */ | |
1274 | if (peer_src->password && !peer_dst->password) | |
1275 | peer_dst->password = | |
1276 | XSTRDUP(MTYPE_PEER_PASSWORD, peer_src->password); | |
1277 | ||
05c7a1cc QY |
1278 | FOREACH_AFI_SAFI (afi, safi) { |
1279 | peer_dst->afc[afi][safi] = peer_src->afc[afi][safi]; | |
1280 | peer_dst->af_flags[afi][safi] = peer_src->af_flags[afi][safi]; | |
1281 | peer_dst->allowas_in[afi][safi] = | |
1282 | peer_src->allowas_in[afi][safi]; | |
1283 | peer_dst->weight[afi][safi] = peer_src->weight[afi][safi]; | |
dcc68b5e MS |
1284 | peer_dst->addpath_type[afi][safi] = |
1285 | peer_src->addpath_type[afi][safi]; | |
05c7a1cc | 1286 | } |
d62a17ae | 1287 | |
1288 | for (afidx = BGP_AF_START; afidx < BGP_AF_MAX; afidx++) { | |
1289 | paf = peer_src->peer_af_array[afidx]; | |
1290 | if (paf != NULL) | |
1291 | peer_af_create(peer_dst, paf->afi, paf->safi); | |
1292 | } | |
1293 | ||
1294 | /* update-source apply */ | |
1295 | if (peer_src->update_source) { | |
1296 | if (peer_dst->update_source) | |
1297 | sockunion_free(peer_dst->update_source); | |
1298 | if (peer_dst->update_if) { | |
1299 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer_dst->update_if); | |
1300 | peer_dst->update_if = NULL; | |
1301 | } | |
1302 | peer_dst->update_source = | |
1303 | sockunion_dup(peer_src->update_source); | |
1304 | } else if (peer_src->update_if) { | |
1305 | if (peer_dst->update_if) | |
1306 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer_dst->update_if); | |
1307 | if (peer_dst->update_source) { | |
1308 | sockunion_free(peer_dst->update_source); | |
1309 | peer_dst->update_source = NULL; | |
1310 | } | |
1311 | peer_dst->update_if = | |
1312 | XSTRDUP(MTYPE_PEER_UPDATE_SOURCE, peer_src->update_if); | |
1313 | } | |
1314 | ||
1315 | if (peer_src->ifname) { | |
1316 | if (peer_dst->ifname) | |
1317 | XFREE(MTYPE_BGP_PEER_IFNAME, peer_dst->ifname); | |
1318 | ||
1319 | peer_dst->ifname = | |
1320 | XSTRDUP(MTYPE_BGP_PEER_IFNAME, peer_src->ifname); | |
1321 | } | |
1322 | } | |
1323 | ||
1324 | static int bgp_peer_conf_if_to_su_update_v4(struct peer *peer, | |
1325 | struct interface *ifp) | |
1326 | { | |
1327 | struct connected *ifc; | |
1328 | struct prefix p; | |
d7c0a89a | 1329 | uint32_t addr; |
d62a17ae | 1330 | struct listnode *node; |
1331 | ||
1332 | /* If our IPv4 address on the interface is /30 or /31, we can derive the | |
1333 | * IPv4 address of the other end. | |
1334 | */ | |
1335 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, ifc)) { | |
1336 | if (ifc->address && (ifc->address->family == AF_INET)) { | |
1337 | PREFIX_COPY_IPV4(&p, CONNECTED_PREFIX(ifc)); | |
1338 | if (p.prefixlen == 30) { | |
1339 | peer->su.sa.sa_family = AF_INET; | |
1340 | addr = ntohl(p.u.prefix4.s_addr); | |
1341 | if (addr % 4 == 1) | |
1342 | peer->su.sin.sin_addr.s_addr = | |
1343 | htonl(addr + 1); | |
1344 | else if (addr % 4 == 2) | |
1345 | peer->su.sin.sin_addr.s_addr = | |
1346 | htonl(addr - 1); | |
8ffedcea | 1347 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
d62a17ae | 1348 | peer->su.sin.sin_len = |
1349 | sizeof(struct sockaddr_in); | |
8ffedcea | 1350 | #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */ |
d62a17ae | 1351 | return 1; |
1352 | } else if (p.prefixlen == 31) { | |
1353 | peer->su.sa.sa_family = AF_INET; | |
1354 | addr = ntohl(p.u.prefix4.s_addr); | |
1355 | if (addr % 2 == 0) | |
1356 | peer->su.sin.sin_addr.s_addr = | |
1357 | htonl(addr + 1); | |
1358 | else | |
1359 | peer->su.sin.sin_addr.s_addr = | |
1360 | htonl(addr - 1); | |
8ffedcea | 1361 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
d62a17ae | 1362 | peer->su.sin.sin_len = |
1363 | sizeof(struct sockaddr_in); | |
8ffedcea | 1364 | #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */ |
d62a17ae | 1365 | return 1; |
1366 | } else if (bgp_debug_neighbor_events(peer)) | |
1367 | zlog_debug( | |
1368 | "%s: IPv4 interface address is not /30 or /31, v4 session not started", | |
1369 | peer->conf_if); | |
1370 | } | |
1371 | } | |
1372 | ||
1373 | return 0; | |
1374 | } | |
1375 | ||
1376 | static int bgp_peer_conf_if_to_su_update_v6(struct peer *peer, | |
1377 | struct interface *ifp) | |
1378 | { | |
1379 | struct nbr_connected *ifc_nbr; | |
1380 | ||
1381 | /* Have we learnt the peer's IPv6 link-local address? */ | |
1382 | if (ifp->nbr_connected | |
1383 | && (ifc_nbr = listnode_head(ifp->nbr_connected))) { | |
1384 | peer->su.sa.sa_family = AF_INET6; | |
1385 | memcpy(&peer->su.sin6.sin6_addr, &ifc_nbr->address->u.prefix, | |
1386 | sizeof(struct in6_addr)); | |
a80beece | 1387 | #ifdef SIN6_LEN |
d62a17ae | 1388 | peer->su.sin6.sin6_len = sizeof(struct sockaddr_in6); |
a80beece | 1389 | #endif |
d62a17ae | 1390 | peer->su.sin6.sin6_scope_id = ifp->ifindex; |
1391 | return 1; | |
1392 | } | |
8ffedcea | 1393 | |
d62a17ae | 1394 | return 0; |
89ca90fa | 1395 | } |
1396 | ||
1397 | /* | |
1398 | * Set or reset the peer address socketunion structure based on the | |
1399 | * learnt/derived peer address. If the address has changed, update the | |
1400 | * password on the listen socket, if needed. | |
1401 | */ | |
d62a17ae | 1402 | void bgp_peer_conf_if_to_su_update(struct peer *peer) |
1403 | { | |
1404 | struct interface *ifp; | |
1405 | int prev_family; | |
1406 | int peer_addr_updated = 0; | |
1407 | ||
1408 | if (!peer->conf_if) | |
1409 | return; | |
1410 | ||
d12b745c DS |
1411 | /* |
1412 | * Our peer structure is stored in the bgp->peerhash | |
1413 | * release it before we modify anything. | |
1414 | */ | |
1415 | hash_release(peer->bgp->peerhash, peer); | |
1416 | ||
d62a17ae | 1417 | prev_family = peer->su.sa.sa_family; |
1418 | if ((ifp = if_lookup_by_name(peer->conf_if, peer->bgp->vrf_id))) { | |
1419 | peer->ifp = ifp; | |
1420 | /* If BGP unnumbered is not "v6only", we first see if we can | |
1421 | * derive the | |
1422 | * peer's IPv4 address. | |
1423 | */ | |
1424 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_IFPEER_V6ONLY)) | |
1425 | peer_addr_updated = | |
1426 | bgp_peer_conf_if_to_su_update_v4(peer, ifp); | |
1427 | ||
1428 | /* If "v6only" or we can't derive peer's IPv4 address, see if | |
1429 | * we've | |
1430 | * learnt the peer's IPv6 link-local address. This is from the | |
1431 | * source | |
1432 | * IPv6 address in router advertisement. | |
1433 | */ | |
1434 | if (!peer_addr_updated) | |
1435 | peer_addr_updated = | |
1436 | bgp_peer_conf_if_to_su_update_v6(peer, ifp); | |
1437 | } | |
1438 | /* If we could derive the peer address, we may need to install the | |
1439 | * password | |
1440 | * configured for the peer, if any, on the listen socket. Otherwise, | |
1441 | * mark | |
1442 | * that peer's address is not available and uninstall the password, if | |
1443 | * needed. | |
1444 | */ | |
1445 | if (peer_addr_updated) { | |
a14810f4 PM |
1446 | if (CHECK_FLAG(peer->flags, PEER_FLAG_PASSWORD) |
1447 | && prev_family == AF_UNSPEC) | |
d62a17ae | 1448 | bgp_md5_set(peer); |
1449 | } else { | |
a14810f4 PM |
1450 | if (CHECK_FLAG(peer->flags, PEER_FLAG_PASSWORD) |
1451 | && prev_family != AF_UNSPEC) | |
d62a17ae | 1452 | bgp_md5_unset(peer); |
1453 | peer->su.sa.sa_family = AF_UNSPEC; | |
1454 | memset(&peer->su.sin6.sin6_addr, 0, sizeof(struct in6_addr)); | |
1455 | } | |
1456 | ||
d12b745c DS |
1457 | /* |
1458 | * Since our su changed we need to del/add peer to the peerhash | |
1459 | */ | |
d62a17ae | 1460 | hash_get(peer->bgp->peerhash, peer, hash_alloc_intern); |
a80beece DS |
1461 | } |
1462 | ||
318cac96 DW |
1463 | static void bgp_recalculate_afi_safi_bestpaths(struct bgp *bgp, afi_t afi, |
1464 | safi_t safi) | |
1465 | { | |
1466 | struct bgp_node *rn, *nrn; | |
67009e22 | 1467 | struct bgp_table *table; |
318cac96 DW |
1468 | |
1469 | for (rn = bgp_table_top(bgp->rib[afi][safi]); rn; | |
1470 | rn = bgp_route_next(rn)) { | |
67009e22 DS |
1471 | table = bgp_node_get_bgp_table_info(rn); |
1472 | if (table != NULL) { | |
318cac96 DW |
1473 | /* Special handling for 2-level routing |
1474 | * tables. */ | |
a4d82a8a | 1475 | if (safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP |
318cac96 | 1476 | || safi == SAFI_EVPN) { |
67009e22 | 1477 | for (nrn = bgp_table_top(table); |
a4d82a8a PZ |
1478 | nrn; nrn = bgp_route_next(nrn)) |
1479 | bgp_process(bgp, nrn, afi, safi); | |
318cac96 DW |
1480 | } else |
1481 | bgp_process(bgp, rn, afi, safi); | |
1482 | } | |
1483 | } | |
1484 | } | |
1485 | ||
06370dac DW |
1486 | /* Force a bestpath recalculation for all prefixes. This is used |
1487 | * when 'bgp bestpath' commands are entered. | |
1488 | */ | |
d62a17ae | 1489 | void bgp_recalculate_all_bestpaths(struct bgp *bgp) |
1490 | { | |
1491 | afi_t afi; | |
1492 | safi_t safi; | |
d62a17ae | 1493 | |
05c7a1cc QY |
1494 | FOREACH_AFI_SAFI (afi, safi) { |
1495 | bgp_recalculate_afi_safi_bestpaths(bgp, afi, safi); | |
d62a17ae | 1496 | } |
06370dac DW |
1497 | } |
1498 | ||
19bd3dff DS |
1499 | /* |
1500 | * Create new BGP peer. | |
1501 | * | |
1502 | * conf_if and su are mutually exclusive if configuring from the cli. | |
1503 | * If we are handing a doppelganger, then we *must* pass in both | |
1504 | * the original peer's su and conf_if, so that we can appropriately | |
1505 | * track the bgp->peerhash( ie we don't want to remove the current | |
1506 | * one from the config ). | |
1507 | */ | |
d62a17ae | 1508 | struct peer *peer_create(union sockunion *su, const char *conf_if, |
1509 | struct bgp *bgp, as_t local_as, as_t remote_as, | |
1510 | int as_type, afi_t afi, safi_t safi, | |
1511 | struct peer_group *group) | |
1512 | { | |
1513 | int active; | |
1514 | struct peer *peer; | |
1515 | char buf[SU_ADDRSTRLEN]; | |
1516 | ||
1517 | peer = peer_new(bgp); | |
1518 | if (conf_if) { | |
1519 | peer->conf_if = XSTRDUP(MTYPE_PEER_CONF_IF, conf_if); | |
19bd3dff DS |
1520 | if (su) |
1521 | peer->su = *su; | |
1522 | else | |
1523 | bgp_peer_conf_if_to_su_update(peer); | |
d62a17ae | 1524 | if (peer->host) |
1525 | XFREE(MTYPE_BGP_PEER_HOST, peer->host); | |
1526 | peer->host = XSTRDUP(MTYPE_BGP_PEER_HOST, conf_if); | |
1527 | } else if (su) { | |
1528 | peer->su = *su; | |
1529 | sockunion2str(su, buf, SU_ADDRSTRLEN); | |
1530 | if (peer->host) | |
1531 | XFREE(MTYPE_BGP_PEER_HOST, peer->host); | |
1532 | peer->host = XSTRDUP(MTYPE_BGP_PEER_HOST, buf); | |
1533 | } | |
1534 | peer->local_as = local_as; | |
1535 | peer->as = remote_as; | |
1536 | peer->as_type = as_type; | |
1537 | peer->local_id = bgp->router_id; | |
1538 | peer->v_holdtime = bgp->default_holdtime; | |
1539 | peer->v_keepalive = bgp->default_keepalive; | |
b90a8e13 PM |
1540 | peer->v_routeadv = (peer_sort(peer) == BGP_PEER_IBGP) |
1541 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
1542 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 1543 | |
1544 | peer = peer_lock(peer); /* bgp peer list reference */ | |
1545 | peer->group = group; | |
1546 | listnode_add_sort(bgp->peer, peer); | |
1547 | hash_get(bgp->peerhash, peer, hash_alloc_intern); | |
1548 | ||
4961a5a2 | 1549 | /* Adjust update-group coalesce timer heuristics for # peers. */ |
37a333fe | 1550 | if (bgp->heuristic_coalesce) { |
14b8641a QY |
1551 | long ct = BGP_DEFAULT_SUBGROUP_COALESCE_TIME |
1552 | + (bgp->peer->count | |
1553 | * BGP_PEER_ADJUST_SUBGROUP_COALESCE_TIME); | |
1554 | bgp->coalesce_time = MIN(BGP_MAX_SUBGROUP_COALESCE_TIME, ct); | |
1555 | } | |
4961a5a2 | 1556 | |
d62a17ae | 1557 | active = peer_active(peer); |
1558 | ||
1559 | /* Last read and reset time set */ | |
1560 | peer->readtime = peer->resettime = bgp_clock(); | |
1561 | ||
1562 | /* Default TTL set. */ | |
1563 | peer->ttl = (peer->sort == BGP_PEER_IBGP) ? MAXTTL : 1; | |
1564 | ||
1565 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); | |
1566 | ||
1567 | if (afi && safi) { | |
1568 | peer->afc[afi][safi] = 1; | |
1569 | peer_af_create(peer, afi, safi); | |
1570 | } | |
1571 | ||
f26845f9 QY |
1572 | /* auto shutdown if configured */ |
1573 | if (bgp->autoshutdown) | |
1574 | peer_flag_set(peer, PEER_FLAG_SHUTDOWN); | |
d62a17ae | 1575 | /* Set up peer's events and timers. */ |
f26845f9 | 1576 | else if (!active && peer_active(peer)) |
d62a17ae | 1577 | bgp_timer_set(peer); |
1578 | ||
1579 | return peer; | |
718e3744 | 1580 | } |
1581 | ||
dd793e4a | 1582 | /* Make accept BGP peer. This function is only called from the test code */ |
d62a17ae | 1583 | struct peer *peer_create_accept(struct bgp *bgp) |
eb821189 | 1584 | { |
d62a17ae | 1585 | struct peer *peer; |
eb821189 | 1586 | |
d62a17ae | 1587 | peer = peer_new(bgp); |
1ff9a340 | 1588 | |
d62a17ae | 1589 | peer = peer_lock(peer); /* bgp peer list reference */ |
1590 | listnode_add_sort(bgp->peer, peer); | |
eb821189 | 1591 | |
d62a17ae | 1592 | return peer; |
eb821189 | 1593 | } |
1594 | ||
318cac96 DW |
1595 | /* |
1596 | * Return true if we have a peer configured to use this afi/safi | |
1597 | */ | |
1598 | int bgp_afi_safi_peer_exists(struct bgp *bgp, afi_t afi, safi_t safi) | |
1599 | { | |
1600 | struct listnode *node; | |
1601 | struct peer *peer; | |
1602 | ||
1603 | for (ALL_LIST_ELEMENTS_RO(bgp->peer, node, peer)) { | |
1604 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE)) | |
1605 | continue; | |
1606 | ||
1607 | if (peer->afc[afi][safi]) | |
1608 | return 1; | |
1609 | } | |
1610 | ||
1611 | return 0; | |
1612 | } | |
1613 | ||
718e3744 | 1614 | /* Change peer's AS number. */ |
d62a17ae | 1615 | void peer_as_change(struct peer *peer, as_t as, int as_specified) |
1616 | { | |
1617 | bgp_peer_sort_t type; | |
d62a17ae | 1618 | |
1619 | /* Stop peer. */ | |
1620 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
1621 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
1622 | peer->last_reset = PEER_DOWN_REMOTE_AS_CHANGE; | |
1623 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
1624 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
1625 | } else | |
1626 | bgp_session_reset(peer); | |
1627 | } | |
1628 | type = peer_sort(peer); | |
1629 | peer->as = as; | |
1630 | peer->as_type = as_specified; | |
1631 | ||
1632 | if (bgp_config_check(peer->bgp, BGP_CONFIG_CONFEDERATION) | |
1633 | && !bgp_confederation_peers_check(peer->bgp, as) | |
1634 | && peer->bgp->as != as) | |
1635 | peer->local_as = peer->bgp->confed_id; | |
1636 | else | |
1637 | peer->local_as = peer->bgp->as; | |
1638 | ||
1639 | /* Advertisement-interval reset */ | |
b90a8e13 PM |
1640 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_ROUTEADV)) { |
1641 | peer->v_routeadv = (peer_sort(peer) == BGP_PEER_IBGP) | |
1642 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
1643 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 1644 | } |
b90a8e13 | 1645 | |
d62a17ae | 1646 | /* TTL reset */ |
1647 | if (peer_sort(peer) == BGP_PEER_IBGP) | |
1648 | peer->ttl = MAXTTL; | |
1649 | else if (type == BGP_PEER_IBGP) | |
1650 | peer->ttl = 1; | |
1651 | ||
1652 | /* reflector-client reset */ | |
1653 | if (peer_sort(peer) != BGP_PEER_IBGP) { | |
1654 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_UNICAST], | |
1655 | PEER_FLAG_REFLECTOR_CLIENT); | |
1656 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_MULTICAST], | |
1657 | PEER_FLAG_REFLECTOR_CLIENT); | |
1658 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_LABELED_UNICAST], | |
1659 | PEER_FLAG_REFLECTOR_CLIENT); | |
1660 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_MPLS_VPN], | |
1661 | PEER_FLAG_REFLECTOR_CLIENT); | |
1662 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_ENCAP], | |
1663 | PEER_FLAG_REFLECTOR_CLIENT); | |
7c40bf39 | 1664 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_FLOWSPEC], |
1665 | PEER_FLAG_REFLECTOR_CLIENT); | |
d62a17ae | 1666 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_UNICAST], |
1667 | PEER_FLAG_REFLECTOR_CLIENT); | |
1668 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_MULTICAST], | |
1669 | PEER_FLAG_REFLECTOR_CLIENT); | |
1670 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_LABELED_UNICAST], | |
1671 | PEER_FLAG_REFLECTOR_CLIENT); | |
1672 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_MPLS_VPN], | |
1673 | PEER_FLAG_REFLECTOR_CLIENT); | |
1674 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_ENCAP], | |
1675 | PEER_FLAG_REFLECTOR_CLIENT); | |
7c40bf39 | 1676 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_FLOWSPEC], |
1677 | PEER_FLAG_REFLECTOR_CLIENT); | |
d62a17ae | 1678 | UNSET_FLAG(peer->af_flags[AFI_L2VPN][SAFI_EVPN], |
1679 | PEER_FLAG_REFLECTOR_CLIENT); | |
1680 | } | |
1681 | ||
1682 | /* local-as reset */ | |
1683 | if (peer_sort(peer) != BGP_PEER_EBGP) { | |
1684 | peer->change_local_as = 0; | |
a14810f4 PM |
1685 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS); |
1686 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
1687 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
d62a17ae | 1688 | } |
718e3744 | 1689 | } |
1690 | ||
1691 | /* If peer does not exist, create new one. If peer already exists, | |
1692 | set AS number to the peer. */ | |
d62a17ae | 1693 | int peer_remote_as(struct bgp *bgp, union sockunion *su, const char *conf_if, |
1694 | as_t *as, int as_type, afi_t afi, safi_t safi) | |
1695 | { | |
1696 | struct peer *peer; | |
1697 | as_t local_as; | |
1698 | ||
1699 | if (conf_if) | |
1700 | peer = peer_lookup_by_conf_if(bgp, conf_if); | |
1701 | else | |
1702 | peer = peer_lookup(bgp, su); | |
1703 | ||
1704 | if (peer) { | |
1705 | /* Not allowed for a dynamic peer. */ | |
1706 | if (peer_dynamic_neighbor(peer)) { | |
1707 | *as = peer->as; | |
1708 | return BGP_ERR_INVALID_FOR_DYNAMIC_PEER; | |
1709 | } | |
718e3744 | 1710 | |
d62a17ae | 1711 | /* When this peer is a member of peer-group. */ |
1712 | if (peer->group) { | |
1713 | if (peer->group->conf->as) { | |
1714 | /* Return peer group's AS number. */ | |
1715 | *as = peer->group->conf->as; | |
1716 | return BGP_ERR_PEER_GROUP_MEMBER; | |
1717 | } | |
1718 | if (peer_sort(peer->group->conf) == BGP_PEER_IBGP) { | |
1719 | if ((as_type != AS_INTERNAL) | |
1720 | && (bgp->as != *as)) { | |
1721 | *as = peer->as; | |
1722 | return BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT; | |
1723 | } | |
1724 | } else { | |
1725 | if ((as_type != AS_EXTERNAL) | |
1726 | && (bgp->as == *as)) { | |
1727 | *as = peer->as; | |
1728 | return BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT; | |
1729 | } | |
1730 | } | |
1731 | } | |
93406d87 | 1732 | |
d62a17ae | 1733 | /* Existing peer's AS number change. */ |
1734 | if (((peer->as_type == AS_SPECIFIED) && peer->as != *as) | |
1735 | || (peer->as_type != as_type)) | |
1736 | peer_as_change(peer, *as, as_type); | |
1737 | } else { | |
1738 | if (conf_if) | |
1739 | return BGP_ERR_NO_INTERFACE_CONFIG; | |
1740 | ||
1741 | /* If the peer is not part of our confederation, and its not an | |
1742 | iBGP peer then spoof the source AS */ | |
1743 | if (bgp_config_check(bgp, BGP_CONFIG_CONFEDERATION) | |
1744 | && !bgp_confederation_peers_check(bgp, *as) | |
1745 | && bgp->as != *as) | |
1746 | local_as = bgp->confed_id; | |
1747 | else | |
1748 | local_as = bgp->as; | |
1749 | ||
1750 | /* If this is IPv4 unicast configuration and "no bgp default | |
1751 | ipv4-unicast" is specified. */ | |
1752 | ||
1753 | if (bgp_flag_check(bgp, BGP_FLAG_NO_DEFAULT_IPV4) | |
1754 | && afi == AFI_IP && safi == SAFI_UNICAST) | |
1755 | peer_create(su, conf_if, bgp, local_as, *as, as_type, 0, | |
1756 | 0, NULL); | |
1757 | else | |
1758 | peer_create(su, conf_if, bgp, local_as, *as, as_type, | |
1759 | afi, safi, NULL); | |
1760 | } | |
718e3744 | 1761 | |
d62a17ae | 1762 | return 0; |
1763 | } | |
718e3744 | 1764 | |
9790f44f DS |
1765 | static void peer_group2peer_config_copy_af(struct peer_group *group, |
1766 | struct peer *peer, afi_t afi, | |
1767 | safi_t safi) | |
1768 | { | |
1769 | int in = FILTER_IN; | |
1770 | int out = FILTER_OUT; | |
4c391142 | 1771 | uint32_t flags_tmp; |
e7103a96 PM |
1772 | uint32_t pflags_ovrd; |
1773 | uint8_t *pfilter_ovrd; | |
9790f44f | 1774 | struct peer *conf; |
9790f44f DS |
1775 | |
1776 | conf = group->conf; | |
e7103a96 PM |
1777 | pflags_ovrd = peer->af_flags_override[afi][safi]; |
1778 | pfilter_ovrd = &peer->filter_override[afi][safi][in]; | |
9790f44f DS |
1779 | |
1780 | /* peer af_flags apply */ | |
4c391142 PM |
1781 | flags_tmp = conf->af_flags[afi][safi] & ~pflags_ovrd; |
1782 | flags_tmp ^= conf->af_flags_invert[afi][safi] | |
1783 | ^ peer->af_flags_invert[afi][safi]; | |
1784 | flags_tmp &= ~pflags_ovrd; | |
1785 | ||
1786 | UNSET_FLAG(peer->af_flags[afi][safi], ~pflags_ovrd); | |
1787 | SET_FLAG(peer->af_flags[afi][safi], flags_tmp); | |
1788 | SET_FLAG(peer->af_flags_invert[afi][safi], | |
1789 | conf->af_flags_invert[afi][safi]); | |
9790f44f DS |
1790 | |
1791 | /* maximum-prefix */ | |
e7103a96 PM |
1792 | if (!CHECK_FLAG(pflags_ovrd, PEER_FLAG_MAX_PREFIX)) { |
1793 | PEER_ATTR_INHERIT(peer, group, pmax[afi][safi]); | |
1794 | PEER_ATTR_INHERIT(peer, group, pmax_threshold[afi][safi]); | |
1795 | PEER_ATTR_INHERIT(peer, group, pmax_restart[afi][safi]); | |
1796 | } | |
9790f44f DS |
1797 | |
1798 | /* allowas-in */ | |
e7103a96 PM |
1799 | if (!CHECK_FLAG(pflags_ovrd, PEER_FLAG_ALLOWAS_IN)) |
1800 | PEER_ATTR_INHERIT(peer, group, allowas_in[afi][safi]); | |
9790f44f DS |
1801 | |
1802 | /* weight */ | |
e7103a96 PM |
1803 | if (!CHECK_FLAG(pflags_ovrd, PEER_FLAG_WEIGHT)) |
1804 | PEER_ATTR_INHERIT(peer, group, weight[afi][safi]); | |
9790f44f DS |
1805 | |
1806 | /* default-originate route-map */ | |
e7103a96 PM |
1807 | if (!CHECK_FLAG(pflags_ovrd, PEER_FLAG_DEFAULT_ORIGINATE)) { |
1808 | PEER_STR_ATTR_INHERIT(peer, group, default_rmap[afi][safi].name, | |
1809 | MTYPE_ROUTE_MAP_NAME); | |
1810 | PEER_ATTR_INHERIT(peer, group, default_rmap[afi][safi].map); | |
9790f44f DS |
1811 | } |
1812 | ||
1813 | /* inbound filter apply */ | |
e7103a96 PM |
1814 | if (!CHECK_FLAG(pfilter_ovrd[in], PEER_FT_DISTRIBUTE_LIST)) { |
1815 | PEER_STR_ATTR_INHERIT(peer, group, | |
1816 | filter[afi][safi].dlist[in].name, | |
1817 | MTYPE_BGP_FILTER_NAME); | |
1818 | PEER_ATTR_INHERIT(peer, group, | |
1819 | filter[afi][safi].dlist[in].alist); | |
9790f44f DS |
1820 | } |
1821 | ||
e7103a96 PM |
1822 | if (!CHECK_FLAG(pfilter_ovrd[in], PEER_FT_PREFIX_LIST)) { |
1823 | PEER_STR_ATTR_INHERIT(peer, group, | |
1824 | filter[afi][safi].plist[in].name, | |
1825 | MTYPE_BGP_FILTER_NAME); | |
1826 | PEER_ATTR_INHERIT(peer, group, | |
1827 | filter[afi][safi].plist[in].plist); | |
9790f44f DS |
1828 | } |
1829 | ||
e7103a96 PM |
1830 | if (!CHECK_FLAG(pfilter_ovrd[in], PEER_FT_FILTER_LIST)) { |
1831 | PEER_STR_ATTR_INHERIT(peer, group, | |
1832 | filter[afi][safi].aslist[in].name, | |
1833 | MTYPE_BGP_FILTER_NAME); | |
1834 | PEER_ATTR_INHERIT(peer, group, | |
1835 | filter[afi][safi].aslist[in].aslist); | |
9790f44f DS |
1836 | } |
1837 | ||
e7103a96 PM |
1838 | if (!CHECK_FLAG(pfilter_ovrd[RMAP_IN], PEER_FT_ROUTE_MAP)) { |
1839 | PEER_STR_ATTR_INHERIT(peer, group, | |
1840 | filter[afi][safi].map[in].name, | |
1841 | MTYPE_BGP_FILTER_NAME); | |
1842 | PEER_ATTR_INHERIT(peer, group, | |
1843 | filter[afi][safi].map[RMAP_IN].map); | |
9790f44f DS |
1844 | } |
1845 | ||
1846 | /* outbound filter apply */ | |
e7103a96 PM |
1847 | if (!CHECK_FLAG(pfilter_ovrd[out], PEER_FT_DISTRIBUTE_LIST)) { |
1848 | PEER_STR_ATTR_INHERIT(peer, group, | |
1849 | filter[afi][safi].dlist[out].name, | |
1850 | MTYPE_BGP_FILTER_NAME); | |
1851 | PEER_ATTR_INHERIT(peer, group, | |
1852 | filter[afi][safi].dlist[out].alist); | |
9790f44f DS |
1853 | } |
1854 | ||
e7103a96 PM |
1855 | if (!CHECK_FLAG(pfilter_ovrd[out], PEER_FT_PREFIX_LIST)) { |
1856 | PEER_STR_ATTR_INHERIT(peer, group, | |
1857 | filter[afi][safi].plist[out].name, | |
1858 | MTYPE_BGP_FILTER_NAME); | |
1859 | PEER_ATTR_INHERIT(peer, group, | |
1860 | filter[afi][safi].plist[out].plist); | |
9790f44f DS |
1861 | } |
1862 | ||
e7103a96 PM |
1863 | if (!CHECK_FLAG(pfilter_ovrd[out], PEER_FT_FILTER_LIST)) { |
1864 | PEER_STR_ATTR_INHERIT(peer, group, | |
1865 | filter[afi][safi].aslist[out].name, | |
1866 | MTYPE_BGP_FILTER_NAME); | |
1867 | PEER_ATTR_INHERIT(peer, group, | |
1868 | filter[afi][safi].aslist[out].aslist); | |
1869 | } | |
1870 | ||
1871 | if (!CHECK_FLAG(pfilter_ovrd[RMAP_OUT], PEER_FT_ROUTE_MAP)) { | |
1872 | PEER_STR_ATTR_INHERIT(peer, group, | |
1873 | filter[afi][safi].map[RMAP_OUT].name, | |
1874 | MTYPE_BGP_FILTER_NAME); | |
1875 | PEER_ATTR_INHERIT(peer, group, | |
1876 | filter[afi][safi].map[RMAP_OUT].map); | |
1877 | } | |
1878 | ||
1879 | /* nondirectional filter apply */ | |
1880 | if (!CHECK_FLAG(pfilter_ovrd[0], PEER_FT_UNSUPPRESS_MAP)) { | |
1881 | PEER_STR_ATTR_INHERIT(peer, group, filter[afi][safi].usmap.name, | |
1882 | MTYPE_BGP_FILTER_NAME); | |
1883 | PEER_ATTR_INHERIT(peer, group, filter[afi][safi].usmap.map); | |
9790f44f | 1884 | } |
dcc68b5e MS |
1885 | |
1886 | if (peer->addpath_type[afi][safi] == BGP_ADDPATH_NONE) { | |
1887 | peer->addpath_type[afi][safi] = conf->addpath_type[afi][safi]; | |
1888 | bgp_addpath_type_changed(conf->bgp); | |
1889 | } | |
9790f44f DS |
1890 | } |
1891 | ||
1892 | static int peer_activate_af(struct peer *peer, afi_t afi, safi_t safi) | |
d62a17ae | 1893 | { |
1894 | int active; | |
9bf904cc | 1895 | struct peer *other; |
718e3744 | 1896 | |
d62a17ae | 1897 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
e50f7cfd | 1898 | flog_err(EC_BGP_PEER_GROUP, "%s was called for peer-group %s", |
1c50c1c0 | 1899 | __func__, peer->host); |
d62a17ae | 1900 | return 1; |
1901 | } | |
3f9c7369 | 1902 | |
d62a17ae | 1903 | /* Do not activate a peer for both SAFI_UNICAST and SAFI_LABELED_UNICAST |
1904 | */ | |
1905 | if ((safi == SAFI_UNICAST && peer->afc[afi][SAFI_LABELED_UNICAST]) | |
1906 | || (safi == SAFI_LABELED_UNICAST && peer->afc[afi][SAFI_UNICAST])) | |
1907 | return BGP_ERR_PEER_SAFI_CONFLICT; | |
1908 | ||
1909 | /* Nothing to do if we've already activated this peer */ | |
1910 | if (peer->afc[afi][safi]) | |
1911 | return 0; | |
1912 | ||
1913 | if (peer_af_create(peer, afi, safi) == NULL) | |
1914 | return 1; | |
1915 | ||
1916 | active = peer_active(peer); | |
1917 | peer->afc[afi][safi] = 1; | |
1918 | ||
9790f44f | 1919 | if (peer->group) |
a4d82a8a | 1920 | peer_group2peer_config_copy_af(peer->group, peer, afi, safi); |
9790f44f | 1921 | |
d62a17ae | 1922 | if (!active && peer_active(peer)) { |
1923 | bgp_timer_set(peer); | |
1924 | } else { | |
1925 | if (peer->status == Established) { | |
1926 | if (CHECK_FLAG(peer->cap, PEER_CAP_DYNAMIC_RCV)) { | |
1927 | peer->afc_adv[afi][safi] = 1; | |
1928 | bgp_capability_send(peer, afi, safi, | |
1929 | CAPABILITY_CODE_MP, | |
1930 | CAPABILITY_ACTION_SET); | |
1931 | if (peer->afc_recv[afi][safi]) { | |
1932 | peer->afc_nego[afi][safi] = 1; | |
1933 | bgp_announce_route(peer, afi, safi); | |
1934 | } | |
1935 | } else { | |
1936 | peer->last_reset = PEER_DOWN_AF_ACTIVATE; | |
1937 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
1938 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
1939 | } | |
1940 | } | |
64c1a9b5 DS |
1941 | if (peer->status == OpenSent || peer->status == OpenConfirm) { |
1942 | peer->last_reset = PEER_DOWN_AF_ACTIVATE; | |
1943 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
1944 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
1945 | } | |
9bf904cc DS |
1946 | /* |
1947 | * If we are turning on a AFI/SAFI locally and we've | |
1948 | * started bringing a peer up, we need to tell | |
1949 | * the other peer to restart because we might loose | |
1950 | * configuration here because when the doppelganger | |
1951 | * gets to a established state due to how | |
1952 | * we resolve we could just overwrite the afi/safi | |
1953 | * activation. | |
1954 | */ | |
1955 | other = peer->doppelganger; | |
1956 | if (other | |
1957 | && (other->status == OpenSent | |
1958 | || other->status == OpenConfirm)) { | |
1959 | other->last_reset = PEER_DOWN_AF_ACTIVATE; | |
1960 | bgp_notify_send(other, BGP_NOTIFY_CEASE, | |
1961 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
1962 | } | |
d62a17ae | 1963 | } |
04b6bdc0 | 1964 | |
d62a17ae | 1965 | return 0; |
1966 | } | |
9e08021c | 1967 | |
d62a17ae | 1968 | /* Activate the peer or peer group for specified AFI and SAFI. */ |
1969 | int peer_activate(struct peer *peer, afi_t afi, safi_t safi) | |
1970 | { | |
1971 | int ret = 0; | |
1972 | struct peer_group *group; | |
1973 | struct listnode *node, *nnode; | |
1974 | struct peer *tmp_peer; | |
318cac96 | 1975 | struct bgp *bgp; |
d62a17ae | 1976 | |
1977 | /* Nothing to do if we've already activated this peer */ | |
1978 | if (peer->afc[afi][safi]) | |
1979 | return ret; | |
1980 | ||
318cac96 DW |
1981 | bgp = peer->bgp; |
1982 | ||
d62a17ae | 1983 | /* This is a peer-group so activate all of the members of the |
1984 | * peer-group as well */ | |
1985 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
1986 | ||
1987 | /* Do not activate a peer for both SAFI_UNICAST and | |
1988 | * SAFI_LABELED_UNICAST */ | |
1989 | if ((safi == SAFI_UNICAST | |
1990 | && peer->afc[afi][SAFI_LABELED_UNICAST]) | |
1991 | || (safi == SAFI_LABELED_UNICAST | |
1992 | && peer->afc[afi][SAFI_UNICAST])) | |
1993 | return BGP_ERR_PEER_SAFI_CONFLICT; | |
1994 | ||
1995 | peer->afc[afi][safi] = 1; | |
1996 | group = peer->group; | |
1997 | ||
1998 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, tmp_peer)) { | |
9790f44f | 1999 | ret |= peer_activate_af(tmp_peer, afi, safi); |
d62a17ae | 2000 | } |
2001 | } else { | |
9790f44f | 2002 | ret |= peer_activate_af(peer, afi, safi); |
d62a17ae | 2003 | } |
718e3744 | 2004 | |
a4d82a8a PZ |
2005 | /* If this is the first peer to be activated for this |
2006 | * afi/labeled-unicast recalc bestpaths to trigger label allocation */ | |
2007 | if (safi == SAFI_LABELED_UNICAST | |
2008 | && !bgp->allocate_mpls_labels[afi][SAFI_UNICAST]) { | |
318cac96 DW |
2009 | |
2010 | if (BGP_DEBUG(zebra, ZEBRA)) | |
a4d82a8a PZ |
2011 | zlog_info( |
2012 | "peer(s) are now active for labeled-unicast, allocate MPLS labels"); | |
318cac96 DW |
2013 | |
2014 | bgp->allocate_mpls_labels[afi][SAFI_UNICAST] = 1; | |
2015 | bgp_recalculate_afi_safi_bestpaths(bgp, afi, SAFI_UNICAST); | |
2016 | } | |
2017 | ||
b98f7728 PG |
2018 | if (safi == SAFI_FLOWSPEC) { |
2019 | /* connect to table manager */ | |
6818e7e5 | 2020 | bgp_zebra_init_tm_connect(bgp); |
b98f7728 | 2021 | } |
d62a17ae | 2022 | return ret; |
718e3744 | 2023 | } |
6b0655a2 | 2024 | |
d62a17ae | 2025 | static int non_peergroup_deactivate_af(struct peer *peer, afi_t afi, |
2026 | safi_t safi) | |
718e3744 | 2027 | { |
d62a17ae | 2028 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
e50f7cfd | 2029 | flog_err(EC_BGP_PEER_GROUP, "%s was called for peer-group %s", |
1c50c1c0 | 2030 | __func__, peer->host); |
d62a17ae | 2031 | return 1; |
2032 | } | |
718e3744 | 2033 | |
d62a17ae | 2034 | /* Nothing to do if we've already deactivated this peer */ |
2035 | if (!peer->afc[afi][safi]) | |
2036 | return 0; | |
718e3744 | 2037 | |
d62a17ae | 2038 | /* De-activate the address family configuration. */ |
2039 | peer->afc[afi][safi] = 0; | |
718e3744 | 2040 | |
d62a17ae | 2041 | if (peer_af_delete(peer, afi, safi) != 0) { |
e50f7cfd | 2042 | flog_err(EC_BGP_PEER_DELETE, |
1c50c1c0 QY |
2043 | "couldn't delete af structure for peer %s", |
2044 | peer->host); | |
d62a17ae | 2045 | return 1; |
2046 | } | |
718e3744 | 2047 | |
d62a17ae | 2048 | if (peer->status == Established) { |
2049 | if (CHECK_FLAG(peer->cap, PEER_CAP_DYNAMIC_RCV)) { | |
2050 | peer->afc_adv[afi][safi] = 0; | |
2051 | peer->afc_nego[afi][safi] = 0; | |
2052 | ||
2053 | if (peer_active_nego(peer)) { | |
2054 | bgp_capability_send(peer, afi, safi, | |
2055 | CAPABILITY_CODE_MP, | |
2056 | CAPABILITY_ACTION_UNSET); | |
2057 | bgp_clear_route(peer, afi, safi); | |
2058 | peer->pcount[afi][safi] = 0; | |
2059 | } else { | |
2060 | peer->last_reset = PEER_DOWN_NEIGHBOR_DELETE; | |
2061 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
2062 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
2063 | } | |
2064 | } else { | |
2065 | peer->last_reset = PEER_DOWN_NEIGHBOR_DELETE; | |
2066 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
2067 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
2068 | } | |
2069 | } | |
718e3744 | 2070 | |
d62a17ae | 2071 | return 0; |
2072 | } | |
718e3744 | 2073 | |
d62a17ae | 2074 | int peer_deactivate(struct peer *peer, afi_t afi, safi_t safi) |
718e3744 | 2075 | { |
d62a17ae | 2076 | int ret = 0; |
2077 | struct peer_group *group; | |
2078 | struct peer *tmp_peer; | |
2079 | struct listnode *node, *nnode; | |
318cac96 | 2080 | struct bgp *bgp; |
718e3744 | 2081 | |
d62a17ae | 2082 | /* Nothing to do if we've already de-activated this peer */ |
2083 | if (!peer->afc[afi][safi]) | |
2084 | return ret; | |
718e3744 | 2085 | |
d62a17ae | 2086 | /* This is a peer-group so de-activate all of the members of the |
2087 | * peer-group as well */ | |
2088 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
2089 | peer->afc[afi][safi] = 0; | |
2090 | group = peer->group; | |
718e3744 | 2091 | |
d62a17ae | 2092 | if (peer_af_delete(peer, afi, safi) != 0) { |
e50f7cfd | 2093 | flog_err(EC_BGP_PEER_DELETE, |
1c50c1c0 QY |
2094 | "couldn't delete af structure for peer %s", |
2095 | peer->host); | |
d62a17ae | 2096 | } |
0299c004 | 2097 | |
d62a17ae | 2098 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, tmp_peer)) { |
2099 | ret |= non_peergroup_deactivate_af(tmp_peer, afi, safi); | |
2100 | } | |
2101 | } else { | |
2102 | ret |= non_peergroup_deactivate_af(peer, afi, safi); | |
2103 | } | |
718e3744 | 2104 | |
318cac96 DW |
2105 | bgp = peer->bgp; |
2106 | ||
a4d82a8a PZ |
2107 | /* If this is the last peer to be deactivated for this |
2108 | * afi/labeled-unicast recalc bestpaths to trigger label deallocation */ | |
2109 | if (safi == SAFI_LABELED_UNICAST | |
2110 | && bgp->allocate_mpls_labels[afi][SAFI_UNICAST] | |
2111 | && !bgp_afi_safi_peer_exists(bgp, afi, safi)) { | |
318cac96 DW |
2112 | |
2113 | if (BGP_DEBUG(zebra, ZEBRA)) | |
a4d82a8a PZ |
2114 | zlog_info( |
2115 | "peer(s) are no longer active for labeled-unicast, deallocate MPLS labels"); | |
318cac96 DW |
2116 | |
2117 | bgp->allocate_mpls_labels[afi][SAFI_UNICAST] = 0; | |
2118 | bgp_recalculate_afi_safi_bestpaths(bgp, afi, SAFI_UNICAST); | |
2119 | } | |
d62a17ae | 2120 | return ret; |
2121 | } | |
718e3744 | 2122 | |
d62a17ae | 2123 | int peer_afc_set(struct peer *peer, afi_t afi, safi_t safi, int enable) |
2124 | { | |
2125 | if (enable) | |
2126 | return peer_activate(peer, afi, safi); | |
2127 | else | |
2128 | return peer_deactivate(peer, afi, safi); | |
718e3744 | 2129 | } |
2130 | ||
d62a17ae | 2131 | static void peer_nsf_stop(struct peer *peer) |
718e3744 | 2132 | { |
d62a17ae | 2133 | afi_t afi; |
2134 | safi_t safi; | |
718e3744 | 2135 | |
d62a17ae | 2136 | UNSET_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT); |
2137 | UNSET_FLAG(peer->sflags, PEER_STATUS_NSF_MODE); | |
718e3744 | 2138 | |
d62a17ae | 2139 | for (afi = AFI_IP; afi < AFI_MAX; afi++) |
a08ca0a7 | 2140 | for (safi = SAFI_UNICAST; safi <= SAFI_MPLS_VPN; safi++) |
d62a17ae | 2141 | peer->nsf[afi][safi] = 0; |
2142 | ||
2143 | if (peer->t_gr_restart) { | |
2144 | BGP_TIMER_OFF(peer->t_gr_restart); | |
2145 | if (bgp_debug_neighbor_events(peer)) | |
2146 | zlog_debug("%s graceful restart timer stopped", | |
2147 | peer->host); | |
1ff9a340 | 2148 | } |
d62a17ae | 2149 | if (peer->t_gr_stale) { |
2150 | BGP_TIMER_OFF(peer->t_gr_stale); | |
2151 | if (bgp_debug_neighbor_events(peer)) | |
2152 | zlog_debug( | |
2153 | "%s graceful restart stalepath timer stopped", | |
2154 | peer->host); | |
2155 | } | |
2156 | bgp_clear_route_all(peer); | |
2157 | } | |
718e3744 | 2158 | |
d62a17ae | 2159 | /* Delete peer from confguration. |
2160 | * | |
2161 | * The peer is moved to a dead-end "Deleted" neighbour-state, to allow | |
2162 | * it to "cool off" and refcounts to hit 0, at which state it is freed. | |
2163 | * | |
2164 | * This function /should/ take care to be idempotent, to guard against | |
2165 | * it being called multiple times through stray events that come in | |
2166 | * that happen to result in this function being called again. That | |
2167 | * said, getting here for a "Deleted" peer is a bug in the neighbour | |
2168 | * FSM. | |
2169 | */ | |
2170 | int peer_delete(struct peer *peer) | |
2171 | { | |
2172 | int i; | |
2173 | afi_t afi; | |
2174 | safi_t safi; | |
2175 | struct bgp *bgp; | |
2176 | struct bgp_filter *filter; | |
2177 | struct listnode *pn; | |
2178 | int accept_peer; | |
f14e6fdb | 2179 | |
d62a17ae | 2180 | assert(peer->status != Deleted); |
718e3744 | 2181 | |
d62a17ae | 2182 | bgp = peer->bgp; |
2183 | accept_peer = CHECK_FLAG(peer->sflags, PEER_STATUS_ACCEPT_PEER); | |
080b97f2 | 2184 | |
424ab01d QY |
2185 | bgp_reads_off(peer); |
2186 | bgp_writes_off(peer); | |
2187 | assert(!CHECK_FLAG(peer->thread_flags, PEER_THREAD_WRITES_ON)); | |
2188 | assert(!CHECK_FLAG(peer->thread_flags, PEER_THREAD_READS_ON)); | |
2189 | ||
d62a17ae | 2190 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT)) |
2191 | peer_nsf_stop(peer); | |
718e3744 | 2192 | |
d62a17ae | 2193 | SET_FLAG(peer->flags, PEER_FLAG_DELETE); |
718e3744 | 2194 | |
d62a17ae | 2195 | /* If this peer belongs to peer group, clear up the |
2196 | relationship. */ | |
2197 | if (peer->group) { | |
2198 | if (peer_dynamic_neighbor(peer)) | |
2199 | peer_drop_dynamic_neighbor(peer); | |
718e3744 | 2200 | |
d62a17ae | 2201 | if ((pn = listnode_lookup(peer->group->peer, peer))) { |
2202 | peer = peer_unlock( | |
2203 | peer); /* group->peer list reference */ | |
2204 | list_delete_node(peer->group->peer, pn); | |
2205 | } | |
2206 | peer->group = NULL; | |
2207 | } | |
718e3744 | 2208 | |
d62a17ae | 2209 | /* Withdraw all information from routing table. We can not use |
2210 | * BGP_EVENT_ADD (peer, BGP_Stop) at here. Because the event is | |
2211 | * executed after peer structure is deleted. | |
2212 | */ | |
2213 | peer->last_reset = PEER_DOWN_NEIGHBOR_DELETE; | |
2214 | bgp_stop(peer); | |
2215 | UNSET_FLAG(peer->flags, PEER_FLAG_DELETE); | |
2216 | ||
2217 | if (peer->doppelganger) { | |
2218 | peer->doppelganger->doppelganger = NULL; | |
2219 | peer->doppelganger = NULL; | |
2220 | } | |
718e3744 | 2221 | |
d62a17ae | 2222 | UNSET_FLAG(peer->sflags, PEER_STATUS_ACCEPT_PEER); |
2223 | bgp_fsm_change_status(peer, Deleted); | |
718e3744 | 2224 | |
d62a17ae | 2225 | /* Remove from NHT */ |
2226 | if (CHECK_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE)) | |
2227 | bgp_unlink_nexthop_by_peer(peer); | |
1ff9a340 | 2228 | |
d62a17ae | 2229 | /* Password configuration */ |
a14810f4 | 2230 | if (CHECK_FLAG(peer->flags, PEER_FLAG_PASSWORD)) { |
d62a17ae | 2231 | XFREE(MTYPE_PEER_PASSWORD, peer->password); |
1ff9a340 | 2232 | |
d62a17ae | 2233 | if (!accept_peer && !BGP_PEER_SU_UNSPEC(peer) |
2234 | && !CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
2235 | bgp_md5_unset(peer); | |
1ff9a340 | 2236 | } |
718e3744 | 2237 | |
d62a17ae | 2238 | bgp_timer_set(peer); /* stops all timers for Deleted */ |
718e3744 | 2239 | |
d62a17ae | 2240 | /* Delete from all peer list. */ |
2241 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP) | |
2242 | && (pn = listnode_lookup(bgp->peer, peer))) { | |
2243 | peer_unlock(peer); /* bgp peer list reference */ | |
2244 | list_delete_node(bgp->peer, pn); | |
2245 | hash_release(bgp->peerhash, peer); | |
2246 | } | |
718e3744 | 2247 | |
d62a17ae | 2248 | /* Buffers. */ |
2249 | if (peer->ibuf) { | |
424ab01d | 2250 | stream_fifo_free(peer->ibuf); |
d62a17ae | 2251 | peer->ibuf = NULL; |
2252 | } | |
f14e6fdb | 2253 | |
d62a17ae | 2254 | if (peer->obuf) { |
2255 | stream_fifo_free(peer->obuf); | |
2256 | peer->obuf = NULL; | |
2257 | } | |
f14e6fdb | 2258 | |
424ab01d | 2259 | if (peer->ibuf_work) { |
74ffbfe6 | 2260 | ringbuf_del(peer->ibuf_work); |
424ab01d QY |
2261 | peer->ibuf_work = NULL; |
2262 | } | |
2263 | ||
2264 | if (peer->obuf_work) { | |
2265 | stream_free(peer->obuf_work); | |
2266 | peer->obuf_work = NULL; | |
d62a17ae | 2267 | } |
f14e6fdb | 2268 | |
d62a17ae | 2269 | if (peer->scratch) { |
2270 | stream_free(peer->scratch); | |
2271 | peer->scratch = NULL; | |
2272 | } | |
f14e6fdb | 2273 | |
d62a17ae | 2274 | /* Local and remote addresses. */ |
2275 | if (peer->su_local) { | |
2276 | sockunion_free(peer->su_local); | |
2277 | peer->su_local = NULL; | |
2278 | } | |
f14e6fdb | 2279 | |
d62a17ae | 2280 | if (peer->su_remote) { |
2281 | sockunion_free(peer->su_remote); | |
2282 | peer->su_remote = NULL; | |
2283 | } | |
f14e6fdb | 2284 | |
d62a17ae | 2285 | /* Free filter related memory. */ |
05c7a1cc QY |
2286 | FOREACH_AFI_SAFI (afi, safi) { |
2287 | filter = &peer->filter[afi][safi]; | |
d62a17ae | 2288 | |
05c7a1cc QY |
2289 | for (i = FILTER_IN; i < FILTER_MAX; i++) { |
2290 | if (filter->dlist[i].name) { | |
2291 | XFREE(MTYPE_BGP_FILTER_NAME, | |
2292 | filter->dlist[i].name); | |
2293 | filter->dlist[i].name = NULL; | |
d62a17ae | 2294 | } |
2295 | ||
05c7a1cc QY |
2296 | if (filter->plist[i].name) { |
2297 | XFREE(MTYPE_BGP_FILTER_NAME, | |
2298 | filter->plist[i].name); | |
2299 | filter->plist[i].name = NULL; | |
d62a17ae | 2300 | } |
2301 | ||
05c7a1cc | 2302 | if (filter->aslist[i].name) { |
d62a17ae | 2303 | XFREE(MTYPE_BGP_FILTER_NAME, |
05c7a1cc QY |
2304 | filter->aslist[i].name); |
2305 | filter->aslist[i].name = NULL; | |
d62a17ae | 2306 | } |
05c7a1cc | 2307 | } |
d62a17ae | 2308 | |
05c7a1cc QY |
2309 | for (i = RMAP_IN; i < RMAP_MAX; i++) { |
2310 | if (filter->map[i].name) { | |
2311 | XFREE(MTYPE_BGP_FILTER_NAME, | |
2312 | filter->map[i].name); | |
2313 | filter->map[i].name = NULL; | |
d62a17ae | 2314 | } |
2315 | } | |
f14e6fdb | 2316 | |
05c7a1cc QY |
2317 | if (filter->usmap.name) { |
2318 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
2319 | filter->usmap.name = NULL; | |
2320 | } | |
2321 | ||
2322 | if (peer->default_rmap[afi][safi].name) { | |
2323 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
2324 | peer->default_rmap[afi][safi].name); | |
2325 | peer->default_rmap[afi][safi].name = NULL; | |
2326 | } | |
2327 | } | |
2328 | ||
a2addae8 RW |
2329 | FOREACH_AFI_SAFI (afi, safi) |
2330 | peer_af_delete(peer, afi, safi); | |
f14e6fdb | 2331 | |
d62a17ae | 2332 | if (peer->hostname) { |
2333 | XFREE(MTYPE_BGP_PEER_HOST, peer->hostname); | |
2334 | peer->hostname = NULL; | |
2335 | } | |
f14e6fdb | 2336 | |
d62a17ae | 2337 | if (peer->domainname) { |
2338 | XFREE(MTYPE_BGP_PEER_HOST, peer->domainname); | |
2339 | peer->domainname = NULL; | |
2340 | } | |
f14e6fdb | 2341 | |
d62a17ae | 2342 | peer_unlock(peer); /* initial reference */ |
f14e6fdb | 2343 | |
d62a17ae | 2344 | return 0; |
fe7d2a48 DS |
2345 | } |
2346 | ||
d62a17ae | 2347 | static int peer_group_cmp(struct peer_group *g1, struct peer_group *g2) |
2348 | { | |
2349 | return strcmp(g1->name, g2->name); | |
6aeb9e78 DS |
2350 | } |
2351 | ||
d62a17ae | 2352 | /* Peer group cofiguration. */ |
2353 | static struct peer_group *peer_group_new(void) | |
718e3744 | 2354 | { |
d62a17ae | 2355 | return (struct peer_group *)XCALLOC(MTYPE_PEER_GROUP, |
2356 | sizeof(struct peer_group)); | |
718e3744 | 2357 | } |
2358 | ||
d62a17ae | 2359 | static void peer_group_free(struct peer_group *group) |
718e3744 | 2360 | { |
d62a17ae | 2361 | XFREE(MTYPE_PEER_GROUP, group); |
718e3744 | 2362 | } |
2363 | ||
d62a17ae | 2364 | struct peer_group *peer_group_lookup(struct bgp *bgp, const char *name) |
718e3744 | 2365 | { |
d62a17ae | 2366 | struct peer_group *group; |
2367 | struct listnode *node, *nnode; | |
2368 | ||
2369 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
2370 | if (strcmp(group->name, name) == 0) | |
2371 | return group; | |
2372 | } | |
2373 | return NULL; | |
2374 | } | |
2375 | ||
2376 | struct peer_group *peer_group_get(struct bgp *bgp, const char *name) | |
2377 | { | |
2378 | struct peer_group *group; | |
2379 | afi_t afi; | |
2380 | ||
2381 | group = peer_group_lookup(bgp, name); | |
2382 | if (group) | |
2383 | return group; | |
2384 | ||
2385 | group = peer_group_new(); | |
2386 | group->bgp = bgp; | |
2387 | if (group->name) | |
2388 | XFREE(MTYPE_PEER_GROUP_HOST, group->name); | |
2389 | group->name = XSTRDUP(MTYPE_PEER_GROUP_HOST, name); | |
2390 | group->peer = list_new(); | |
2391 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
2392 | group->listen_range[afi] = list_new(); | |
2393 | group->conf = peer_new(bgp); | |
2394 | if (!bgp_flag_check(bgp, BGP_FLAG_NO_DEFAULT_IPV4)) | |
2395 | group->conf->afc[AFI_IP][SAFI_UNICAST] = 1; | |
2396 | if (group->conf->host) | |
2397 | XFREE(MTYPE_BGP_PEER_HOST, group->conf->host); | |
2398 | group->conf->host = XSTRDUP(MTYPE_BGP_PEER_HOST, name); | |
2399 | group->conf->group = group; | |
2400 | group->conf->as = 0; | |
2401 | group->conf->ttl = 1; | |
2402 | group->conf->gtsm_hops = 0; | |
2403 | group->conf->v_routeadv = BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 2404 | SET_FLAG(group->conf->sflags, PEER_STATUS_GROUP); |
2405 | listnode_add_sort(bgp->group, group); | |
718e3744 | 2406 | |
d62a17ae | 2407 | return group; |
718e3744 | 2408 | } |
2409 | ||
d62a17ae | 2410 | static void peer_group2peer_config_copy(struct peer_group *group, |
2411 | struct peer *peer) | |
ad4cbda1 | 2412 | { |
4c391142 | 2413 | uint32_t flags_tmp; |
d62a17ae | 2414 | struct peer *conf; |
ad4cbda1 | 2415 | |
d62a17ae | 2416 | conf = group->conf; |
ad4cbda1 | 2417 | |
d62a17ae | 2418 | /* remote-as */ |
2419 | if (conf->as) | |
2420 | peer->as = conf->as; | |
718e3744 | 2421 | |
a14810f4 PM |
2422 | /* local-as */ |
2423 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_LOCAL_AS)) | |
d62a17ae | 2424 | peer->change_local_as = conf->change_local_as; |
1758dbaa | 2425 | |
d62a17ae | 2426 | /* TTL */ |
2427 | peer->ttl = conf->ttl; | |
518f0eb1 | 2428 | |
d62a17ae | 2429 | /* GTSM hops */ |
2430 | peer->gtsm_hops = conf->gtsm_hops; | |
ad12dde6 | 2431 | |
4c391142 PM |
2432 | /* peer flags apply */ |
2433 | flags_tmp = conf->flags & ~peer->flags_override; | |
2434 | flags_tmp ^= conf->flags_invert ^ peer->flags_invert; | |
2435 | flags_tmp &= ~peer->flags_override; | |
2436 | ||
2437 | UNSET_FLAG(peer->flags, ~peer->flags_override); | |
2438 | SET_FLAG(peer->flags, flags_tmp); | |
2439 | SET_FLAG(peer->flags_invert, conf->flags_invert); | |
ad4cbda1 | 2440 | |
d62a17ae | 2441 | /* peer timers apply */ |
b90a8e13 PM |
2442 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_TIMER)) { |
2443 | PEER_ATTR_INHERIT(peer, group, holdtime); | |
2444 | PEER_ATTR_INHERIT(peer, group, keepalive); | |
2445 | } | |
6aeb9e78 | 2446 | |
b90a8e13 PM |
2447 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_TIMER_CONNECT)) { |
2448 | PEER_ATTR_INHERIT(peer, group, connect); | |
2449 | if (CHECK_FLAG(conf->flags, PEER_FLAG_TIMER_CONNECT)) | |
2450 | peer->v_connect = conf->connect; | |
2451 | else | |
2452 | peer->v_connect = BGP_DEFAULT_CONNECT_RETRY; | |
2453 | } | |
2454 | ||
2455 | /* advertisement-interval apply */ | |
2456 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_ROUTEADV)) { | |
2457 | PEER_ATTR_INHERIT(peer, group, routeadv); | |
2458 | if (CHECK_FLAG(conf->flags, PEER_FLAG_ROUTEADV)) | |
2459 | peer->v_routeadv = conf->routeadv; | |
2460 | else | |
2461 | peer->v_routeadv = (peer_sort(peer) == BGP_PEER_IBGP) | |
2462 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
2463 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
2464 | } | |
718e3744 | 2465 | |
d62a17ae | 2466 | /* password apply */ |
a14810f4 PM |
2467 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_PASSWORD)) |
2468 | PEER_STR_ATTR_INHERIT(peer, group, password, | |
2469 | MTYPE_PEER_PASSWORD); | |
718e3744 | 2470 | |
d62a17ae | 2471 | if (!BGP_PEER_SU_UNSPEC(peer)) |
2472 | bgp_md5_set(peer); | |
d4a7a753 | 2473 | |
d62a17ae | 2474 | /* update-source apply */ |
a14810f4 PM |
2475 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_UPDATE_SOURCE)) { |
2476 | if (conf->update_source) { | |
d62a17ae | 2477 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); |
a14810f4 PM |
2478 | PEER_SU_ATTR_INHERIT(peer, group, update_source); |
2479 | } else if (conf->update_if) { | |
d62a17ae | 2480 | sockunion_free(peer->update_source); |
a14810f4 PM |
2481 | PEER_STR_ATTR_INHERIT(peer, group, update_if, |
2482 | MTYPE_PEER_UPDATE_SOURCE); | |
d62a17ae | 2483 | } |
d62a17ae | 2484 | } |
cd92e548 | 2485 | |
d62a17ae | 2486 | bgp_bfd_peer_group2peer_copy(conf, peer); |
ad4cbda1 | 2487 | } |
718e3744 | 2488 | |
d62a17ae | 2489 | /* Peer group's remote AS configuration. */ |
2490 | int peer_group_remote_as(struct bgp *bgp, const char *group_name, as_t *as, | |
2491 | int as_type) | |
f14e6fdb | 2492 | { |
d62a17ae | 2493 | struct peer_group *group; |
2494 | struct peer *peer; | |
2495 | struct listnode *node, *nnode; | |
f14e6fdb | 2496 | |
d62a17ae | 2497 | group = peer_group_lookup(bgp, group_name); |
2498 | if (!group) | |
2499 | return -1; | |
f14e6fdb | 2500 | |
d62a17ae | 2501 | if ((as_type == group->conf->as_type) && (group->conf->as == *as)) |
2502 | return 0; | |
f14e6fdb | 2503 | |
f14e6fdb | 2504 | |
d62a17ae | 2505 | /* When we setup peer-group AS number all peer group member's AS |
2506 | number must be updated to same number. */ | |
2507 | peer_as_change(group->conf, *as, as_type); | |
f14e6fdb | 2508 | |
d62a17ae | 2509 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { |
2510 | if (((peer->as_type == AS_SPECIFIED) && peer->as != *as) | |
2511 | || (peer->as_type != as_type)) | |
2512 | peer_as_change(peer, *as, as_type); | |
2513 | } | |
f14e6fdb | 2514 | |
d62a17ae | 2515 | return 0; |
f14e6fdb DS |
2516 | } |
2517 | ||
d62a17ae | 2518 | int peer_group_delete(struct peer_group *group) |
f14e6fdb | 2519 | { |
d62a17ae | 2520 | struct bgp *bgp; |
2521 | struct peer *peer; | |
2522 | struct prefix *prefix; | |
2523 | struct peer *other; | |
2524 | struct listnode *node, *nnode; | |
2525 | afi_t afi; | |
f14e6fdb | 2526 | |
d62a17ae | 2527 | bgp = group->bgp; |
f14e6fdb | 2528 | |
d62a17ae | 2529 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { |
2530 | other = peer->doppelganger; | |
2531 | peer_delete(peer); | |
2532 | if (other && other->status != Deleted) { | |
2533 | other->group = NULL; | |
2534 | peer_delete(other); | |
2535 | } | |
2536 | } | |
6a154c88 | 2537 | list_delete(&group->peer); |
f14e6fdb | 2538 | |
d62a17ae | 2539 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
2540 | for (ALL_LIST_ELEMENTS(group->listen_range[afi], node, nnode, | |
2541 | prefix)) { | |
2542 | prefix_free(prefix); | |
2543 | } | |
6a154c88 | 2544 | list_delete(&group->listen_range[afi]); |
d62a17ae | 2545 | } |
f14e6fdb | 2546 | |
d62a17ae | 2547 | XFREE(MTYPE_PEER_GROUP_HOST, group->name); |
2548 | group->name = NULL; | |
0299c004 | 2549 | |
d62a17ae | 2550 | bfd_info_free(&(group->conf->bfd_info)); |
f14e6fdb | 2551 | |
d62a17ae | 2552 | group->conf->group = NULL; |
2553 | peer_delete(group->conf); | |
f14e6fdb | 2554 | |
d62a17ae | 2555 | /* Delete from all peer_group list. */ |
2556 | listnode_delete(bgp->group, group); | |
f14e6fdb | 2557 | |
d62a17ae | 2558 | peer_group_free(group); |
f14e6fdb | 2559 | |
d62a17ae | 2560 | return 0; |
2561 | } | |
f14e6fdb | 2562 | |
d62a17ae | 2563 | int peer_group_remote_as_delete(struct peer_group *group) |
2564 | { | |
2565 | struct peer *peer, *other; | |
2566 | struct listnode *node, *nnode; | |
f14e6fdb | 2567 | |
d62a17ae | 2568 | if ((group->conf->as_type == AS_UNSPECIFIED) |
2569 | || ((!group->conf->as) && (group->conf->as_type == AS_SPECIFIED))) | |
2570 | return 0; | |
f14e6fdb | 2571 | |
d62a17ae | 2572 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { |
2573 | other = peer->doppelganger; | |
f14e6fdb | 2574 | |
d62a17ae | 2575 | peer_delete(peer); |
f14e6fdb | 2576 | |
d62a17ae | 2577 | if (other && other->status != Deleted) { |
2578 | other->group = NULL; | |
2579 | peer_delete(other); | |
2580 | } | |
2581 | } | |
2582 | list_delete_all_node(group->peer); | |
f14e6fdb | 2583 | |
d62a17ae | 2584 | group->conf->as = 0; |
2585 | group->conf->as_type = AS_UNSPECIFIED; | |
f14e6fdb | 2586 | |
d62a17ae | 2587 | return 0; |
f14e6fdb | 2588 | } |
d62a17ae | 2589 | |
2590 | int peer_group_listen_range_add(struct peer_group *group, struct prefix *range) | |
f14e6fdb | 2591 | { |
d62a17ae | 2592 | struct prefix *prefix; |
2593 | struct listnode *node, *nnode; | |
2594 | afi_t afi; | |
f14e6fdb | 2595 | |
d62a17ae | 2596 | afi = family2afi(range->family); |
f14e6fdb | 2597 | |
d62a17ae | 2598 | /* Group needs remote AS configured. */ |
2599 | if (group->conf->as_type == AS_UNSPECIFIED) | |
2600 | return BGP_ERR_PEER_GROUP_NO_REMOTE_AS; | |
718e3744 | 2601 | |
d62a17ae | 2602 | /* Ensure no duplicates. Currently we don't care about overlaps. */ |
2603 | for (ALL_LIST_ELEMENTS(group->listen_range[afi], node, nnode, prefix)) { | |
2604 | if (prefix_same(range, prefix)) | |
2605 | return 0; | |
2606 | } | |
2607 | ||
2608 | prefix = prefix_new(); | |
2609 | prefix_copy(prefix, range); | |
2610 | listnode_add(group->listen_range[afi], prefix); | |
2611 | return 0; | |
718e3744 | 2612 | } |
6b0655a2 | 2613 | |
d62a17ae | 2614 | int peer_group_listen_range_del(struct peer_group *group, struct prefix *range) |
718e3744 | 2615 | { |
d62a17ae | 2616 | struct prefix *prefix, prefix2; |
2617 | struct listnode *node, *nnode; | |
2618 | struct peer *peer; | |
2619 | afi_t afi; | |
2620 | char buf[PREFIX2STR_BUFFER]; | |
718e3744 | 2621 | |
d62a17ae | 2622 | afi = family2afi(range->family); |
1ff9a340 | 2623 | |
d62a17ae | 2624 | /* Identify the listen range. */ |
2625 | for (ALL_LIST_ELEMENTS(group->listen_range[afi], node, nnode, prefix)) { | |
2626 | if (prefix_same(range, prefix)) | |
2627 | break; | |
1ff9a340 | 2628 | } |
718e3744 | 2629 | |
d62a17ae | 2630 | if (!prefix) |
2631 | return BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_NOT_FOUND; | |
2632 | ||
2633 | prefix2str(prefix, buf, sizeof(buf)); | |
2634 | ||
2635 | /* Dispose off any dynamic neighbors that exist due to this listen range | |
2636 | */ | |
2637 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
2638 | if (!peer_dynamic_neighbor(peer)) | |
2639 | continue; | |
2640 | ||
2641 | sockunion2hostprefix(&peer->su, &prefix2); | |
2642 | if (prefix_match(prefix, &prefix2)) { | |
2643 | if (bgp_debug_neighbor_events(peer)) | |
2644 | zlog_debug( | |
2645 | "Deleting dynamic neighbor %s group %s upon " | |
2646 | "delete of listen range %s", | |
2647 | peer->host, group->name, buf); | |
2648 | peer_delete(peer); | |
2649 | } | |
2650 | } | |
718e3744 | 2651 | |
d62a17ae | 2652 | /* Get rid of the listen range */ |
2653 | listnode_delete(group->listen_range[afi], prefix); | |
718e3744 | 2654 | |
d62a17ae | 2655 | return 0; |
2656 | } | |
e0701b79 | 2657 | |
d62a17ae | 2658 | /* Bind specified peer to peer group. */ |
2659 | int peer_group_bind(struct bgp *bgp, union sockunion *su, struct peer *peer, | |
2660 | struct peer_group *group, as_t *as) | |
2661 | { | |
2662 | int first_member = 0; | |
2663 | afi_t afi; | |
2664 | safi_t safi; | |
d62a17ae | 2665 | |
2666 | /* Lookup the peer. */ | |
2667 | if (!peer) | |
2668 | peer = peer_lookup(bgp, su); | |
2669 | ||
2670 | /* The peer exist, bind it to the peer-group */ | |
2671 | if (peer) { | |
ed9fb826 | 2672 | /* When the peer already belongs to a peer-group, check the |
d62a17ae | 2673 | * consistency. */ |
ed9fb826 DW |
2674 | if (peer_group_active(peer)) { |
2675 | ||
2676 | /* The peer is already bound to the peer-group, | |
d8a079e8 DW |
2677 | * nothing to do |
2678 | */ | |
ed9fb826 DW |
2679 | if (strcmp(peer->group->name, group->name) == 0) |
2680 | return 0; | |
2681 | else | |
2682 | return BGP_ERR_PEER_GROUP_CANT_CHANGE; | |
2683 | } | |
d62a17ae | 2684 | |
2685 | /* The peer has not specified a remote-as, inherit it from the | |
2686 | * peer-group */ | |
2687 | if (peer->as_type == AS_UNSPECIFIED) { | |
2688 | peer->as_type = group->conf->as_type; | |
2689 | peer->as = group->conf->as; | |
2690 | } | |
718e3744 | 2691 | |
d62a17ae | 2692 | if (!group->conf->as) { |
2693 | if (peer_sort(group->conf) != BGP_PEER_INTERNAL | |
2694 | && peer_sort(group->conf) != peer_sort(peer)) { | |
2695 | if (as) | |
2696 | *as = peer->as; | |
2697 | return BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT; | |
2698 | } | |
718e3744 | 2699 | |
d62a17ae | 2700 | if (peer_sort(group->conf) == BGP_PEER_INTERNAL) |
2701 | first_member = 1; | |
2702 | } | |
718e3744 | 2703 | |
d62a17ae | 2704 | peer_group2peer_config_copy(group, peer); |
2705 | ||
05c7a1cc QY |
2706 | FOREACH_AFI_SAFI (afi, safi) { |
2707 | if (group->conf->afc[afi][safi]) { | |
2708 | peer->afc[afi][safi] = 1; | |
2709 | ||
2710 | if (peer_af_find(peer, afi, safi) | |
2711 | || peer_af_create(peer, afi, safi)) { | |
2712 | peer_group2peer_config_copy_af( | |
2713 | group, peer, afi, safi); | |
2714 | } | |
2715 | } else if (peer->afc[afi][safi]) | |
2716 | peer_deactivate(peer, afi, safi); | |
a4d82a8a | 2717 | } |
d62a17ae | 2718 | |
2719 | if (peer->group) { | |
2720 | assert(group && peer->group == group); | |
2721 | } else { | |
0866cdaf A |
2722 | listnode_delete(bgp->peer, peer); |
2723 | ||
d62a17ae | 2724 | peer->group = group; |
2725 | listnode_add_sort(bgp->peer, peer); | |
2726 | ||
2727 | peer = peer_lock(peer); /* group->peer list reference */ | |
2728 | listnode_add(group->peer, peer); | |
2729 | } | |
718e3744 | 2730 | |
d62a17ae | 2731 | if (first_member) { |
2732 | /* Advertisement-interval reset */ | |
b90a8e13 PM |
2733 | if (!CHECK_FLAG(group->conf->flags, |
2734 | PEER_FLAG_ROUTEADV)) { | |
2735 | group->conf->v_routeadv = | |
2736 | (peer_sort(group->conf) | |
2737 | == BGP_PEER_IBGP) | |
2738 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
2739 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 2740 | } |
2741 | ||
2742 | /* ebgp-multihop reset */ | |
2743 | if (peer_sort(group->conf) == BGP_PEER_IBGP) | |
2744 | group->conf->ttl = MAXTTL; | |
2745 | ||
2746 | /* local-as reset */ | |
2747 | if (peer_sort(group->conf) != BGP_PEER_EBGP) { | |
2748 | group->conf->change_local_as = 0; | |
a14810f4 PM |
2749 | peer_flag_unset(group->conf, |
2750 | PEER_FLAG_LOCAL_AS); | |
2751 | peer_flag_unset(group->conf, | |
2752 | PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
2753 | peer_flag_unset(group->conf, | |
2754 | PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
d62a17ae | 2755 | } |
2756 | } | |
718e3744 | 2757 | |
d62a17ae | 2758 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); |
718e3744 | 2759 | |
d62a17ae | 2760 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
2761 | peer->last_reset = PEER_DOWN_RMAP_BIND; | |
2762 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
2763 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
2764 | } else { | |
2765 | bgp_session_reset(peer); | |
2766 | } | |
2767 | } | |
718e3744 | 2768 | |
d62a17ae | 2769 | /* Create a new peer. */ |
2770 | else { | |
2771 | if ((group->conf->as_type == AS_SPECIFIED) | |
2772 | && (!group->conf->as)) { | |
2773 | return BGP_ERR_PEER_GROUP_NO_REMOTE_AS; | |
2774 | } | |
718e3744 | 2775 | |
d62a17ae | 2776 | peer = peer_create(su, NULL, bgp, bgp->as, group->conf->as, |
2777 | group->conf->as_type, 0, 0, group); | |
718e3744 | 2778 | |
d62a17ae | 2779 | peer = peer_lock(peer); /* group->peer list reference */ |
2780 | listnode_add(group->peer, peer); | |
718e3744 | 2781 | |
d62a17ae | 2782 | peer_group2peer_config_copy(group, peer); |
a4ed4829 | 2783 | |
d62a17ae | 2784 | /* If the peer-group is active for this afi/safi then activate |
2785 | * for this peer */ | |
05c7a1cc QY |
2786 | FOREACH_AFI_SAFI (afi, safi) { |
2787 | if (group->conf->afc[afi][safi]) { | |
2788 | peer->afc[afi][safi] = 1; | |
2789 | peer_af_create(peer, afi, safi); | |
2790 | peer_group2peer_config_copy_af(group, peer, afi, | |
2791 | safi); | |
2792 | } else if (peer->afc[afi][safi]) | |
2793 | peer_deactivate(peer, afi, safi); | |
2794 | } | |
718e3744 | 2795 | |
d62a17ae | 2796 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); |
718e3744 | 2797 | |
d62a17ae | 2798 | /* Set up peer's events and timers. */ |
2799 | if (peer_active(peer)) | |
2800 | bgp_timer_set(peer); | |
2801 | } | |
718e3744 | 2802 | |
d62a17ae | 2803 | return 0; |
718e3744 | 2804 | } |
2805 | ||
d62a17ae | 2806 | static int bgp_startup_timer_expire(struct thread *thread) |
2807 | { | |
2808 | struct bgp *bgp; | |
718e3744 | 2809 | |
d62a17ae | 2810 | bgp = THREAD_ARG(thread); |
2811 | bgp->t_startup = NULL; | |
718e3744 | 2812 | |
d62a17ae | 2813 | return 0; |
2814 | } | |
e0701b79 | 2815 | |
829e590b DS |
2816 | /* |
2817 | * On shutdown we call the cleanup function which | |
2818 | * does a free of the link list nodes, free up | |
2819 | * the data we are pointing at too. | |
2820 | */ | |
2821 | static void bgp_vrf_string_name_delete(void *data) | |
2822 | { | |
2823 | char *vname = data; | |
2824 | ||
2825 | XFREE(MTYPE_TMP, vname); | |
2826 | } | |
2827 | ||
d62a17ae | 2828 | /* BGP instance creation by `router bgp' commands. */ |
2829 | static struct bgp *bgp_create(as_t *as, const char *name, | |
2830 | enum bgp_instance_type inst_type) | |
2831 | { | |
0291c246 MK |
2832 | struct bgp *bgp; |
2833 | afi_t afi; | |
2834 | safi_t safi; | |
d62a17ae | 2835 | |
2836 | if ((bgp = XCALLOC(MTYPE_BGP, sizeof(struct bgp))) == NULL) | |
2837 | return NULL; | |
2838 | ||
2839 | if (BGP_DEBUG(zebra, ZEBRA)) { | |
2840 | if (inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
2841 | zlog_debug("Creating Default VRF, AS %u", *as); | |
2842 | else | |
2843 | zlog_debug("Creating %s %s, AS %u", | |
2844 | (inst_type == BGP_INSTANCE_TYPE_VRF) | |
2845 | ? "VRF" | |
2846 | : "VIEW", | |
2847 | name, *as); | |
718e3744 | 2848 | } |
adbac85e | 2849 | |
d62a17ae | 2850 | bgp_lock(bgp); |
9df5ac49 | 2851 | bgp->heuristic_coalesce = true; |
d62a17ae | 2852 | bgp->inst_type = inst_type; |
2853 | bgp->vrf_id = (inst_type == BGP_INSTANCE_TYPE_DEFAULT) ? VRF_DEFAULT | |
2854 | : VRF_UNKNOWN; | |
2855 | bgp->peer_self = peer_new(bgp); | |
2856 | if (bgp->peer_self->host) | |
2857 | XFREE(MTYPE_BGP_PEER_HOST, bgp->peer_self->host); | |
2858 | bgp->peer_self->host = | |
2859 | XSTRDUP(MTYPE_BGP_PEER_HOST, "Static announcement"); | |
d77114b7 MK |
2860 | if (bgp->peer_self->hostname != NULL) { |
2861 | XFREE(MTYPE_BGP_PEER_HOST, bgp->peer_self->hostname); | |
2862 | bgp->peer_self->hostname = NULL; | |
2863 | } | |
6b3ee3a0 | 2864 | if (cmd_hostname_get()) |
60466a63 QY |
2865 | bgp->peer_self->hostname = |
2866 | XSTRDUP(MTYPE_BGP_PEER_HOST, cmd_hostname_get()); | |
d77114b7 MK |
2867 | |
2868 | if (bgp->peer_self->domainname != NULL) { | |
2869 | XFREE(MTYPE_BGP_PEER_HOST, bgp->peer_self->domainname); | |
2870 | bgp->peer_self->domainname = NULL; | |
2871 | } | |
6b3ee3a0 | 2872 | if (cmd_domainname_get()) |
60466a63 QY |
2873 | bgp->peer_self->domainname = |
2874 | XSTRDUP(MTYPE_BGP_PEER_HOST, cmd_domainname_get()); | |
d62a17ae | 2875 | bgp->peer = list_new(); |
2876 | bgp->peer->cmp = (int (*)(void *, void *))peer_cmp; | |
a4d82a8a | 2877 | bgp->peerhash = hash_create(peer_hash_key_make, peer_hash_same, |
3f65c5b1 | 2878 | "BGP Peer Hash"); |
40520c36 | 2879 | bgp->peerhash->max_size = BGP_PEER_MAX_HASH_SIZE; |
d62a17ae | 2880 | |
2881 | bgp->group = list_new(); | |
2882 | bgp->group->cmp = (int (*)(void *, void *))peer_group_cmp; | |
2883 | ||
05c7a1cc | 2884 | FOREACH_AFI_SAFI (afi, safi) { |
960035b2 PZ |
2885 | bgp->route[afi][safi] = bgp_table_init(bgp, afi, safi); |
2886 | bgp->aggregate[afi][safi] = bgp_table_init(bgp, afi, safi); | |
2887 | bgp->rib[afi][safi] = bgp_table_init(bgp, afi, safi); | |
05c7a1cc QY |
2888 | |
2889 | /* Enable maximum-paths */ | |
2890 | bgp_maximum_paths_set(bgp, afi, safi, BGP_PEER_EBGP, | |
2891 | multipath_num, 0); | |
2892 | bgp_maximum_paths_set(bgp, afi, safi, BGP_PEER_IBGP, | |
2893 | multipath_num, 0); | |
2894 | } | |
d62a17ae | 2895 | |
2896 | bgp->v_update_delay = BGP_UPDATE_DELAY_DEF; | |
2897 | bgp->default_local_pref = BGP_DEFAULT_LOCAL_PREF; | |
2898 | bgp->default_subgroup_pkt_queue_max = | |
2899 | BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX; | |
2900 | bgp->default_holdtime = BGP_DEFAULT_HOLDTIME; | |
2901 | bgp->default_keepalive = BGP_DEFAULT_KEEPALIVE; | |
2902 | bgp->restart_time = BGP_DEFAULT_RESTART_TIME; | |
2903 | bgp->stalepath_time = BGP_DEFAULT_STALEPATH_TIME; | |
2904 | bgp->dynamic_neighbors_limit = BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT; | |
2905 | bgp->dynamic_neighbors_count = 0; | |
2906 | #if DFLT_BGP_IMPORT_CHECK | |
2907 | bgp_flag_set(bgp, BGP_FLAG_IMPORT_CHECK); | |
2908 | #endif | |
2909 | #if DFLT_BGP_SHOW_HOSTNAME | |
2910 | bgp_flag_set(bgp, BGP_FLAG_SHOW_HOSTNAME); | |
2911 | #endif | |
2912 | #if DFLT_BGP_LOG_NEIGHBOR_CHANGES | |
2913 | bgp_flag_set(bgp, BGP_FLAG_LOG_NEIGHBOR_CHANGES); | |
2914 | #endif | |
2915 | #if DFLT_BGP_DETERMINISTIC_MED | |
2916 | bgp_flag_set(bgp, BGP_FLAG_DETERMINISTIC_MED); | |
2917 | #endif | |
dcc68b5e | 2918 | bgp_addpath_init_bgp_data(&bgp->tx_addpath); |
d62a17ae | 2919 | |
2920 | bgp->as = *as; | |
2921 | ||
2922 | #if ENABLE_BGP_VNC | |
2923 | if (inst_type != BGP_INSTANCE_TYPE_VRF) { | |
2924 | bgp->rfapi = bgp_rfapi_new(bgp); | |
2925 | assert(bgp->rfapi); | |
2926 | assert(bgp->rfapi_cfg); | |
2927 | } | |
2928 | #endif /* ENABLE_BGP_VNC */ | |
adbac85e | 2929 | |
ddb5b488 | 2930 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
e70e9f8e PZ |
2931 | bgp->vpn_policy[afi].bgp = bgp; |
2932 | bgp->vpn_policy[afi].afi = afi; | |
ddb5b488 PZ |
2933 | bgp->vpn_policy[afi].tovpn_label = MPLS_LABEL_NONE; |
2934 | bgp->vpn_policy[afi].tovpn_zebra_vrf_label_last_sent = | |
2935 | MPLS_LABEL_NONE; | |
12a844a5 DS |
2936 | |
2937 | bgp->vpn_policy[afi].import_vrf = list_new(); | |
829e590b DS |
2938 | bgp->vpn_policy[afi].import_vrf->del = |
2939 | bgp_vrf_string_name_delete; | |
12a844a5 | 2940 | bgp->vpn_policy[afi].export_vrf = list_new(); |
829e590b DS |
2941 | bgp->vpn_policy[afi].export_vrf->del = |
2942 | bgp_vrf_string_name_delete; | |
ddb5b488 | 2943 | } |
d62a17ae | 2944 | if (name) { |
2945 | bgp->name = XSTRDUP(MTYPE_BGP, name); | |
2946 | } else { | |
2947 | /* TODO - The startup timer needs to be run for the whole of BGP | |
2948 | */ | |
2949 | thread_add_timer(bm->master, bgp_startup_timer_expire, bgp, | |
2950 | bgp->restart_time, &bgp->t_startup); | |
2951 | } | |
06370dac | 2952 | |
3572fb26 PZ |
2953 | /* printable name we can use in debug messages */ |
2954 | if (inst_type == BGP_INSTANCE_TYPE_DEFAULT) { | |
2955 | bgp->name_pretty = XSTRDUP(MTYPE_BGP, "VRF default"); | |
2956 | } else { | |
2957 | const char *n; | |
2958 | int len; | |
2959 | ||
2960 | if (bgp->name) | |
2961 | n = bgp->name; | |
2962 | else | |
2963 | n = "?"; | |
2964 | ||
2965 | len = 4 + 1 + strlen(n) + 1; /* "view foo\0" */ | |
2966 | ||
2967 | bgp->name_pretty = XCALLOC(MTYPE_BGP, len); | |
2968 | snprintf(bgp->name_pretty, len, "%s %s", | |
2969 | (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) | |
2970 | ? "VRF" | |
2971 | : "VIEW", | |
2972 | n); | |
2973 | } | |
2974 | ||
555e09d4 QY |
2975 | atomic_store_explicit(&bgp->wpkt_quanta, BGP_WRITE_PACKET_MAX, |
2976 | memory_order_relaxed); | |
2977 | atomic_store_explicit(&bgp->rpkt_quanta, BGP_READ_PACKET_MAX, | |
2978 | memory_order_relaxed); | |
d62a17ae | 2979 | bgp->coalesce_time = BGP_DEFAULT_SUBGROUP_COALESCE_TIME; |
adbac85e | 2980 | |
d62a17ae | 2981 | QOBJ_REG(bgp, bgp); |
adbac85e | 2982 | |
d62a17ae | 2983 | update_bgp_group_init(bgp); |
92708db6 | 2984 | |
2985 | /* assign a unique rd id for auto derivation of vrf's RD */ | |
2986 | bf_assign_index(bm->rd_idspace, bgp->vrf_rd_id); | |
2987 | ||
85c8d83b CS |
2988 | bgp->evpn_info = XCALLOC(MTYPE_BGP_EVPN_INFO, |
2989 | sizeof(struct bgp_evpn_info)); | |
2990 | ||
d62a17ae | 2991 | bgp_evpn_init(bgp); |
f3d32faa | 2992 | bgp_pbr_init(bgp); |
d62a17ae | 2993 | return bgp; |
718e3744 | 2994 | } |
2995 | ||
d62a17ae | 2996 | /* Return the "default VRF" instance of BGP. */ |
2997 | struct bgp *bgp_get_default(void) | |
718e3744 | 2998 | { |
d62a17ae | 2999 | struct bgp *bgp; |
3000 | struct listnode *node, *nnode; | |
3001 | ||
3002 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) | |
3003 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
3004 | return bgp; | |
3005 | return NULL; | |
718e3744 | 3006 | } |
3007 | ||
d62a17ae | 3008 | /* Lookup BGP entry. */ |
3009 | struct bgp *bgp_lookup(as_t as, const char *name) | |
718e3744 | 3010 | { |
d62a17ae | 3011 | struct bgp *bgp; |
3012 | struct listnode *node, *nnode; | |
6b0655a2 | 3013 | |
d62a17ae | 3014 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) |
3015 | if (bgp->as == as | |
3016 | && ((bgp->name == NULL && name == NULL) | |
3017 | || (bgp->name && name && strcmp(bgp->name, name) == 0))) | |
3018 | return bgp; | |
3019 | return NULL; | |
3020 | } | |
73d70fa6 | 3021 | |
d62a17ae | 3022 | /* Lookup BGP structure by view name. */ |
3023 | struct bgp *bgp_lookup_by_name(const char *name) | |
73d70fa6 | 3024 | { |
d62a17ae | 3025 | struct bgp *bgp; |
3026 | struct listnode *node, *nnode; | |
3027 | ||
3028 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) | |
3029 | if ((bgp->name == NULL && name == NULL) | |
3030 | || (bgp->name && name && strcmp(bgp->name, name) == 0)) | |
3031 | return bgp; | |
3032 | return NULL; | |
73d70fa6 DL |
3033 | } |
3034 | ||
d62a17ae | 3035 | /* Lookup BGP instance based on VRF id. */ |
3036 | /* Note: Only to be used for incoming messages from Zebra. */ | |
3037 | struct bgp *bgp_lookup_by_vrf_id(vrf_id_t vrf_id) | |
73d70fa6 | 3038 | { |
d62a17ae | 3039 | struct vrf *vrf; |
3040 | ||
3041 | /* Lookup VRF (in tree) and follow link. */ | |
3042 | vrf = vrf_lookup_by_id(vrf_id); | |
3043 | if (!vrf) | |
3044 | return NULL; | |
3045 | return (vrf->info) ? (struct bgp *)vrf->info : NULL; | |
73d70fa6 DL |
3046 | } |
3047 | ||
e5619c28 PG |
3048 | /* handle socket creation or deletion, if necessary |
3049 | * this is called for all new BGP instances | |
3050 | */ | |
996c9314 LB |
3051 | int bgp_handle_socket(struct bgp *bgp, struct vrf *vrf, vrf_id_t old_vrf_id, |
3052 | bool create) | |
e5619c28 PG |
3053 | { |
3054 | int ret = 0; | |
3055 | ||
3056 | /* Create BGP server socket, if listen mode not disabled */ | |
3057 | if (!bgp || bgp_option_check(BGP_OPT_NO_LISTEN)) | |
3058 | return 0; | |
3ad00234 | 3059 | if (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) { |
e5619c28 PG |
3060 | /* |
3061 | * suppress vrf socket | |
3062 | */ | |
3063 | if (create == FALSE) { | |
3ad00234 LB |
3064 | bgp_close_vrf_socket(bgp); |
3065 | return 0; | |
e5619c28 | 3066 | } |
3ad00234 LB |
3067 | if (vrf == NULL) |
3068 | return BGP_ERR_INVALID_VALUE; | |
e5619c28 PG |
3069 | /* do nothing |
3070 | * if vrf_id did not change | |
3071 | */ | |
3072 | if (vrf->vrf_id == old_vrf_id) | |
3073 | return 0; | |
3074 | if (old_vrf_id != VRF_UNKNOWN) { | |
3075 | /* look for old socket. close it. */ | |
3076 | bgp_close_vrf_socket(bgp); | |
3077 | } | |
3078 | /* if backend is not yet identified ( VRF_UNKNOWN) then | |
3079 | * creation will be done later | |
3080 | */ | |
3081 | if (vrf->vrf_id == VRF_UNKNOWN) | |
3082 | return 0; | |
3ad00234 LB |
3083 | ret = bgp_socket(bgp, bm->port, bm->address); |
3084 | if (ret < 0) | |
3085 | return BGP_ERR_INVALID_VALUE; | |
3086 | return 0; | |
3087 | } else | |
3088 | return bgp_check_main_socket(create, bgp); | |
e5619c28 PG |
3089 | } |
3090 | ||
d62a17ae | 3091 | /* Called from VTY commands. */ |
3092 | int bgp_get(struct bgp **bgp_val, as_t *as, const char *name, | |
3093 | enum bgp_instance_type inst_type) | |
3094 | { | |
3095 | struct bgp *bgp; | |
e5619c28 | 3096 | struct vrf *vrf = NULL; |
d62a17ae | 3097 | |
3098 | /* Multiple instance check. */ | |
3099 | if (bgp_option_check(BGP_OPT_MULTIPLE_INSTANCE)) { | |
3100 | if (name) | |
3101 | bgp = bgp_lookup_by_name(name); | |
3102 | else | |
3103 | bgp = bgp_get_default(); | |
3104 | ||
3105 | /* Already exists. */ | |
3106 | if (bgp) { | |
3107 | if (bgp->as != *as) { | |
3108 | *as = bgp->as; | |
3109 | return BGP_ERR_INSTANCE_MISMATCH; | |
3110 | } | |
3111 | if (bgp->inst_type != inst_type) | |
3112 | return BGP_ERR_INSTANCE_MISMATCH; | |
3113 | *bgp_val = bgp; | |
3114 | return 0; | |
3115 | } | |
3116 | } else { | |
3117 | /* BGP instance name can not be specified for single instance. | |
3118 | */ | |
3119 | if (name) | |
3120 | return BGP_ERR_MULTIPLE_INSTANCE_NOT_SET; | |
3121 | ||
3122 | /* Get default BGP structure if exists. */ | |
3123 | bgp = bgp_get_default(); | |
3124 | ||
3125 | if (bgp) { | |
3126 | if (bgp->as != *as) { | |
3127 | *as = bgp->as; | |
3128 | return BGP_ERR_AS_MISMATCH; | |
3129 | } | |
3130 | *bgp_val = bgp; | |
3131 | return 0; | |
3132 | } | |
3133 | } | |
73d70fa6 | 3134 | |
d62a17ae | 3135 | bgp = bgp_create(as, name, inst_type); |
0b014ea6 PG |
3136 | if (bgp_option_check(BGP_OPT_NO_ZEBRA) && name) |
3137 | bgp->vrf_id = vrf_generate_id(); | |
d62a17ae | 3138 | bgp_router_id_set(bgp, &bgp->router_id_zebra); |
3139 | bgp_address_init(bgp); | |
db0e1937 | 3140 | bgp_tip_hash_init(bgp); |
d62a17ae | 3141 | bgp_scan_init(bgp); |
3142 | *bgp_val = bgp; | |
eb821189 | 3143 | |
d62a17ae | 3144 | bgp->t_rmap_def_originate_eval = NULL; |
e5cc509c | 3145 | |
d62a17ae | 3146 | /* If Default instance or VRF, link to the VRF structure, if present. */ |
3147 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT | |
3148 | || bgp->inst_type == BGP_INSTANCE_TYPE_VRF) { | |
d62a17ae | 3149 | vrf = bgp_vrf_lookup_by_instance_type(bgp); |
3150 | if (vrf) | |
3151 | bgp_vrf_link(bgp, vrf); | |
3152 | } | |
e5619c28 PG |
3153 | /* BGP server socket already processed if BGP instance |
3154 | * already part of the list | |
3155 | */ | |
3156 | bgp_handle_socket(bgp, vrf, VRF_UNKNOWN, true); | |
3157 | listnode_add(bm->bgp, bgp); | |
718e3744 | 3158 | |
bb4ef1ae DS |
3159 | if (IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
3160 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3161 | zlog_debug("%s: Registering BGP instance %s to zebra", | |
3162 | __PRETTY_FUNCTION__, name); | |
d62a17ae | 3163 | bgp_zebra_instance_register(bgp); |
bb4ef1ae | 3164 | } |
718e3744 | 3165 | |
d62a17ae | 3166 | return 0; |
718e3744 | 3167 | } |
6b0655a2 | 3168 | |
d62a17ae | 3169 | /* |
3170 | * Make BGP instance "up". Applies only to VRFs (non-default) and | |
3171 | * implies the VRF has been learnt from Zebra. | |
3172 | */ | |
3173 | void bgp_instance_up(struct bgp *bgp) | |
718e3744 | 3174 | { |
d62a17ae | 3175 | struct peer *peer; |
3176 | struct listnode *node, *next; | |
718e3744 | 3177 | |
d62a17ae | 3178 | /* Register with zebra. */ |
3179 | bgp_zebra_instance_register(bgp); | |
718e3744 | 3180 | |
d62a17ae | 3181 | /* Kick off any peers that may have been configured. */ |
3182 | for (ALL_LIST_ELEMENTS(bgp->peer, node, next, peer)) { | |
3183 | if (!BGP_PEER_START_SUPPRESSED(peer)) | |
3184 | BGP_EVENT_ADD(peer, BGP_Start); | |
718e3744 | 3185 | } |
3186 | ||
d62a17ae | 3187 | /* Process any networks that have been configured. */ |
3188 | bgp_static_add(bgp); | |
3189 | } | |
3190 | ||
3191 | /* | |
3192 | * Make BGP instance "down". Applies only to VRFs (non-default) and | |
3193 | * implies the VRF has been deleted by Zebra. | |
3194 | */ | |
3195 | void bgp_instance_down(struct bgp *bgp) | |
3196 | { | |
3197 | struct peer *peer; | |
3198 | struct listnode *node; | |
3199 | struct listnode *next; | |
3200 | ||
3201 | /* Stop timers. */ | |
3202 | if (bgp->t_rmap_def_originate_eval) { | |
3203 | BGP_TIMER_OFF(bgp->t_rmap_def_originate_eval); | |
3204 | bgp_unlock(bgp); /* TODO - This timer is started with a lock - | |
3205 | why? */ | |
718e3744 | 3206 | } |
3207 | ||
d62a17ae | 3208 | /* Bring down peers, so corresponding routes are purged. */ |
3209 | for (ALL_LIST_ELEMENTS(bgp->peer, node, next, peer)) { | |
3210 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
3211 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3212 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN); | |
3213 | else | |
3214 | bgp_session_reset(peer); | |
3215 | } | |
718e3744 | 3216 | |
d62a17ae | 3217 | /* Purge network and redistributed routes. */ |
3218 | bgp_purge_static_redist_routes(bgp); | |
ee7ca6c0 | 3219 | |
3220 | /* Cleanup registered nexthops (flags) */ | |
3221 | bgp_cleanup_nexthops(bgp); | |
718e3744 | 3222 | } |
3223 | ||
d62a17ae | 3224 | /* Delete BGP instance. */ |
3225 | int bgp_delete(struct bgp *bgp) | |
3226 | { | |
3227 | struct peer *peer; | |
3228 | struct peer_group *group; | |
3229 | struct listnode *node, *next; | |
3230 | struct vrf *vrf; | |
3231 | afi_t afi; | |
3232 | int i; | |
3233 | ||
bf383464 | 3234 | assert(bgp); |
d62a17ae | 3235 | THREAD_OFF(bgp->t_startup); |
c969b2ed DS |
3236 | THREAD_OFF(bgp->t_maxmed_onstartup); |
3237 | THREAD_OFF(bgp->t_update_delay); | |
3238 | THREAD_OFF(bgp->t_establish_wait); | |
d62a17ae | 3239 | |
3240 | if (BGP_DEBUG(zebra, ZEBRA)) { | |
3241 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
3242 | zlog_debug("Deleting Default VRF"); | |
3243 | else | |
3244 | zlog_debug("Deleting %s %s", | |
3245 | (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) | |
3246 | ? "VRF" | |
3247 | : "VIEW", | |
3248 | bgp->name); | |
718e3744 | 3249 | } |
3250 | ||
10ebe1ab MK |
3251 | /* unmap from RT list */ |
3252 | bgp_evpn_vrf_delete(bgp); | |
3253 | ||
d62a17ae | 3254 | /* Stop timers. */ |
3255 | if (bgp->t_rmap_def_originate_eval) { | |
3256 | BGP_TIMER_OFF(bgp->t_rmap_def_originate_eval); | |
3257 | bgp_unlock(bgp); /* TODO - This timer is started with a lock - | |
3258 | why? */ | |
718e3744 | 3259 | } |
3260 | ||
d62a17ae | 3261 | /* Inform peers we're going down. */ |
3262 | for (ALL_LIST_ELEMENTS(bgp->peer, node, next, peer)) { | |
3263 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
3264 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3265 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN); | |
718e3744 | 3266 | } |
3267 | ||
d62a17ae | 3268 | /* Delete static routes (networks). */ |
3269 | bgp_static_delete(bgp); | |
6b0655a2 | 3270 | |
d62a17ae | 3271 | /* Unset redistribution. */ |
3272 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
3273 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
3274 | if (i != ZEBRA_ROUTE_BGP) | |
3275 | bgp_redistribute_unset(bgp, afi, i, 0); | |
718e3744 | 3276 | |
d62a17ae | 3277 | /* Free peers and peer-groups. */ |
3278 | for (ALL_LIST_ELEMENTS(bgp->group, node, next, group)) | |
3279 | peer_group_delete(group); | |
718e3744 | 3280 | |
d62a17ae | 3281 | for (ALL_LIST_ELEMENTS(bgp->peer, node, next, peer)) |
3282 | peer_delete(peer); | |
3283 | ||
3284 | if (bgp->peer_self) { | |
3285 | peer_delete(bgp->peer_self); | |
3286 | bgp->peer_self = NULL; | |
718e3744 | 3287 | } |
3288 | ||
d62a17ae | 3289 | update_bgp_group_free(bgp); |
718e3744 | 3290 | |
d62a17ae | 3291 | /* TODO - Other memory may need to be freed - e.g., NHT */ |
3292 | ||
3293 | #if ENABLE_BGP_VNC | |
3294 | rfapi_delete(bgp); | |
3295 | #endif | |
3296 | bgp_cleanup_routes(bgp); | |
718e3744 | 3297 | |
301ad80a PG |
3298 | for (afi = 0; afi < AFI_MAX; ++afi) { |
3299 | if (!bgp->vpn_policy[afi].import_redirect_rtlist) | |
3300 | continue; | |
3301 | ecommunity_free( | |
3302 | &bgp->vpn_policy[afi] | |
3303 | .import_redirect_rtlist); | |
3304 | bgp->vpn_policy[afi].import_redirect_rtlist = NULL; | |
3305 | } | |
718e3744 | 3306 | |
d62a17ae | 3307 | /* Deregister from Zebra, if needed */ |
bb4ef1ae DS |
3308 | if (IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
3309 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3310 | zlog_debug("%s: deregistering this bgp %s instance from zebra", | |
3311 | __PRETTY_FUNCTION__, bgp->name); | |
d62a17ae | 3312 | bgp_zebra_instance_deregister(bgp); |
bb4ef1ae | 3313 | } |
718e3744 | 3314 | |
de6058ab AK |
3315 | /* Remove visibility via the master list - there may however still be |
3316 | * routes to be processed still referencing the struct bgp. | |
3317 | */ | |
3318 | listnode_delete(bm->bgp, bgp); | |
3319 | ||
d62a17ae | 3320 | /* Free interfaces in this instance. */ |
3321 | bgp_if_finish(bgp); | |
718e3744 | 3322 | |
d62a17ae | 3323 | vrf = bgp_vrf_lookup_by_instance_type(bgp); |
e5619c28 | 3324 | bgp_handle_socket(bgp, vrf, VRF_UNKNOWN, false); |
d62a17ae | 3325 | if (vrf) |
3326 | bgp_vrf_unlink(bgp, vrf); | |
718e3744 | 3327 | |
d62a17ae | 3328 | thread_master_free_unused(bm->master); |
3329 | bgp_unlock(bgp); /* initial reference */ | |
718e3744 | 3330 | |
d62a17ae | 3331 | return 0; |
718e3744 | 3332 | } |
6b0655a2 | 3333 | |
92375c91 | 3334 | void bgp_free(struct bgp *bgp) |
d93f7ffc | 3335 | { |
d62a17ae | 3336 | afi_t afi; |
3337 | safi_t safi; | |
3338 | struct bgp_table *table; | |
3339 | struct bgp_node *rn; | |
f8265580 | 3340 | struct bgp_rmap *rmap; |
d93f7ffc | 3341 | |
d62a17ae | 3342 | QOBJ_UNREG(bgp); |
d93f7ffc | 3343 | |
6a154c88 DL |
3344 | list_delete(&bgp->group); |
3345 | list_delete(&bgp->peer); | |
966f821c | 3346 | |
d62a17ae | 3347 | if (bgp->peerhash) { |
3348 | hash_free(bgp->peerhash); | |
3349 | bgp->peerhash = NULL; | |
3350 | } | |
718e3744 | 3351 | |
05c7a1cc QY |
3352 | FOREACH_AFI_SAFI (afi, safi) { |
3353 | /* Special handling for 2-level routing tables. */ | |
3354 | if (safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP | |
3355 | || safi == SAFI_EVPN) { | |
3356 | for (rn = bgp_table_top(bgp->rib[afi][safi]); rn; | |
3357 | rn = bgp_route_next(rn)) { | |
67009e22 | 3358 | table = bgp_node_get_bgp_table_info(rn); |
05c7a1cc | 3359 | bgp_table_finish(&table); |
d62a17ae | 3360 | } |
d62a17ae | 3361 | } |
05c7a1cc QY |
3362 | if (bgp->route[afi][safi]) |
3363 | bgp_table_finish(&bgp->route[afi][safi]); | |
3364 | if (bgp->aggregate[afi][safi]) | |
3365 | bgp_table_finish(&bgp->aggregate[afi][safi]); | |
3366 | if (bgp->rib[afi][safi]) | |
3367 | bgp_table_finish(&bgp->rib[afi][safi]); | |
3368 | rmap = &bgp->table_map[afi][safi]; | |
3369 | if (rmap->name) | |
3370 | XFREE(MTYPE_ROUTE_MAP_NAME, rmap->name); | |
3371 | } | |
718e3744 | 3372 | |
d62a17ae | 3373 | bgp_scan_finish(bgp); |
3374 | bgp_address_destroy(bgp); | |
db0e1937 | 3375 | bgp_tip_hash_destroy(bgp); |
966f821c | 3376 | |
92708db6 | 3377 | /* release the auto RD id */ |
3378 | bf_release_index(bm->rd_idspace, bgp->vrf_rd_id); | |
3379 | ||
d62a17ae | 3380 | bgp_evpn_cleanup(bgp); |
a6b07429 | 3381 | bgp_pbr_cleanup(bgp); |
85c8d83b | 3382 | XFREE(MTYPE_BGP_EVPN_INFO, bgp->evpn_info); |
829e590b DS |
3383 | |
3384 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
3385 | vpn_policy_direction_t dir; | |
3386 | ||
3387 | if (bgp->vpn_policy[afi].import_vrf) | |
6a154c88 | 3388 | list_delete(&bgp->vpn_policy[afi].import_vrf); |
829e590b | 3389 | if (bgp->vpn_policy[afi].export_vrf) |
6a154c88 | 3390 | list_delete(&bgp->vpn_policy[afi].export_vrf); |
829e590b DS |
3391 | |
3392 | dir = BGP_VPN_POLICY_DIR_FROMVPN; | |
3393 | if (bgp->vpn_policy[afi].rtlist[dir]) | |
3394 | ecommunity_free(&bgp->vpn_policy[afi].rtlist[dir]); | |
3395 | dir = BGP_VPN_POLICY_DIR_TOVPN; | |
3396 | if (bgp->vpn_policy[afi].rtlist[dir]) | |
3397 | ecommunity_free(&bgp->vpn_policy[afi].rtlist[dir]); | |
3398 | } | |
3399 | ||
d62a17ae | 3400 | if (bgp->name) |
3401 | XFREE(MTYPE_BGP, bgp->name); | |
3572fb26 PZ |
3402 | if (bgp->name_pretty) |
3403 | XFREE(MTYPE_BGP, bgp->name_pretty); | |
966f821c | 3404 | |
d62a17ae | 3405 | XFREE(MTYPE_BGP, bgp); |
718e3744 | 3406 | } |
3407 | ||
d62a17ae | 3408 | struct peer *peer_lookup_by_conf_if(struct bgp *bgp, const char *conf_if) |
718e3744 | 3409 | { |
d62a17ae | 3410 | struct peer *peer; |
3411 | struct listnode *node, *nnode; | |
966f821c | 3412 | |
d62a17ae | 3413 | if (!conf_if) |
3414 | return NULL; | |
6b0655a2 | 3415 | |
d62a17ae | 3416 | if (bgp != NULL) { |
3417 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
3418 | if (peer->conf_if && !strcmp(peer->conf_if, conf_if) | |
3419 | && !CHECK_FLAG(peer->sflags, | |
3420 | PEER_STATUS_ACCEPT_PEER)) | |
3421 | return peer; | |
3422 | } else if (bm->bgp != NULL) { | |
3423 | struct listnode *bgpnode, *nbgpnode; | |
3424 | ||
3425 | for (ALL_LIST_ELEMENTS(bm->bgp, bgpnode, nbgpnode, bgp)) | |
3426 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
3427 | if (peer->conf_if | |
3428 | && !strcmp(peer->conf_if, conf_if) | |
3429 | && !CHECK_FLAG(peer->sflags, | |
3430 | PEER_STATUS_ACCEPT_PEER)) | |
3431 | return peer; | |
3432 | } | |
3433 | return NULL; | |
718e3744 | 3434 | } |
3435 | ||
d62a17ae | 3436 | struct peer *peer_lookup_by_hostname(struct bgp *bgp, const char *hostname) |
718e3744 | 3437 | { |
d62a17ae | 3438 | struct peer *peer; |
3439 | struct listnode *node, *nnode; | |
6b0655a2 | 3440 | |
d62a17ae | 3441 | if (!hostname) |
3442 | return NULL; | |
6b0655a2 | 3443 | |
d62a17ae | 3444 | if (bgp != NULL) { |
3445 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
3446 | if (peer->hostname && !strcmp(peer->hostname, hostname) | |
3447 | && !CHECK_FLAG(peer->sflags, | |
3448 | PEER_STATUS_ACCEPT_PEER)) | |
3449 | return peer; | |
3450 | } else if (bm->bgp != NULL) { | |
3451 | struct listnode *bgpnode, *nbgpnode; | |
3452 | ||
3453 | for (ALL_LIST_ELEMENTS(bm->bgp, bgpnode, nbgpnode, bgp)) | |
3454 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
3455 | if (peer->hostname | |
3456 | && !strcmp(peer->hostname, hostname) | |
3457 | && !CHECK_FLAG(peer->sflags, | |
3458 | PEER_STATUS_ACCEPT_PEER)) | |
3459 | return peer; | |
3460 | } | |
3461 | return NULL; | |
3462 | } | |
3463 | ||
3464 | struct peer *peer_lookup(struct bgp *bgp, union sockunion *su) | |
3465 | { | |
3466 | struct peer *peer = NULL; | |
3467 | struct peer tmp_peer; | |
3468 | ||
3469 | memset(&tmp_peer, 0, sizeof(struct peer)); | |
3470 | ||
3471 | /* | |
3472 | * We do not want to find the doppelganger peer so search for the peer | |
3473 | * in | |
3474 | * the hash that has PEER_FLAG_CONFIG_NODE | |
3475 | */ | |
3476 | SET_FLAG(tmp_peer.flags, PEER_FLAG_CONFIG_NODE); | |
3477 | ||
3478 | tmp_peer.su = *su; | |
3479 | ||
3480 | if (bgp != NULL) { | |
3481 | peer = hash_lookup(bgp->peerhash, &tmp_peer); | |
3482 | } else if (bm->bgp != NULL) { | |
3483 | struct listnode *bgpnode, *nbgpnode; | |
3484 | ||
3485 | for (ALL_LIST_ELEMENTS(bm->bgp, bgpnode, nbgpnode, bgp)) { | |
d62a17ae | 3486 | peer = hash_lookup(bgp->peerhash, &tmp_peer); |
d62a17ae | 3487 | if (peer) |
3488 | break; | |
3489 | } | |
3490 | } | |
3491 | ||
3492 | return peer; | |
3493 | } | |
3494 | ||
3495 | struct peer *peer_create_bind_dynamic_neighbor(struct bgp *bgp, | |
3496 | union sockunion *su, | |
3497 | struct peer_group *group) | |
3498 | { | |
3499 | struct peer *peer; | |
3500 | afi_t afi; | |
3501 | safi_t safi; | |
3502 | ||
3503 | /* Create peer first; we've already checked group config is valid. */ | |
3504 | peer = peer_create(su, NULL, bgp, bgp->as, group->conf->as, | |
3505 | group->conf->as_type, 0, 0, group); | |
3506 | if (!peer) | |
3507 | return NULL; | |
3508 | ||
3509 | /* Link to group */ | |
3510 | peer = peer_lock(peer); | |
3511 | listnode_add(group->peer, peer); | |
3512 | ||
3513 | peer_group2peer_config_copy(group, peer); | |
3514 | ||
3515 | /* | |
3516 | * Bind peer for all AFs configured for the group. We don't call | |
3517 | * peer_group_bind as that is sub-optimal and does some stuff we don't | |
3518 | * want. | |
3519 | */ | |
05c7a1cc QY |
3520 | FOREACH_AFI_SAFI (afi, safi) { |
3521 | if (!group->conf->afc[afi][safi]) | |
3522 | continue; | |
3523 | peer->afc[afi][safi] = 1; | |
d62a17ae | 3524 | |
05c7a1cc QY |
3525 | if (!peer_af_find(peer, afi, safi)) |
3526 | peer_af_create(peer, afi, safi); | |
d62a17ae | 3527 | |
05c7a1cc QY |
3528 | peer_group2peer_config_copy_af(group, peer, afi, safi); |
3529 | } | |
d62a17ae | 3530 | |
3531 | /* Mark as dynamic, but also as a "config node" for other things to | |
3532 | * work. */ | |
3533 | SET_FLAG(peer->flags, PEER_FLAG_DYNAMIC_NEIGHBOR); | |
3534 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); | |
3535 | ||
3536 | return peer; | |
3537 | } | |
3538 | ||
3539 | struct prefix * | |
3540 | peer_group_lookup_dynamic_neighbor_range(struct peer_group *group, | |
3541 | struct prefix *prefix) | |
3542 | { | |
3543 | struct listnode *node, *nnode; | |
3544 | struct prefix *range; | |
3545 | afi_t afi; | |
3546 | ||
3547 | afi = family2afi(prefix->family); | |
3548 | ||
3549 | if (group->listen_range[afi]) | |
3550 | for (ALL_LIST_ELEMENTS(group->listen_range[afi], node, nnode, | |
3551 | range)) | |
3552 | if (prefix_match(range, prefix)) | |
3553 | return range; | |
3554 | ||
3555 | return NULL; | |
3556 | } | |
3557 | ||
3558 | struct peer_group * | |
3559 | peer_group_lookup_dynamic_neighbor(struct bgp *bgp, struct prefix *prefix, | |
3560 | struct prefix **listen_range) | |
3561 | { | |
3562 | struct prefix *range = NULL; | |
3563 | struct peer_group *group = NULL; | |
3564 | struct listnode *node, *nnode; | |
3565 | ||
3566 | *listen_range = NULL; | |
3567 | if (bgp != NULL) { | |
3568 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) | |
3569 | if ((range = peer_group_lookup_dynamic_neighbor_range( | |
3570 | group, prefix))) | |
3571 | break; | |
3572 | } else if (bm->bgp != NULL) { | |
3573 | struct listnode *bgpnode, *nbgpnode; | |
3574 | ||
3575 | for (ALL_LIST_ELEMENTS(bm->bgp, bgpnode, nbgpnode, bgp)) | |
3576 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) | |
3577 | if ((range = peer_group_lookup_dynamic_neighbor_range( | |
3578 | group, prefix))) | |
3579 | goto found_range; | |
3580 | } | |
3581 | ||
3582 | found_range: | |
3583 | *listen_range = range; | |
3584 | return (group && range) ? group : NULL; | |
3585 | } | |
3586 | ||
3587 | struct peer *peer_lookup_dynamic_neighbor(struct bgp *bgp, union sockunion *su) | |
3588 | { | |
3589 | struct peer_group *group; | |
3590 | struct bgp *gbgp; | |
3591 | struct peer *peer; | |
3592 | struct prefix prefix; | |
3593 | struct prefix *listen_range; | |
3594 | int dncount; | |
3595 | char buf[PREFIX2STR_BUFFER]; | |
3596 | char buf1[PREFIX2STR_BUFFER]; | |
3597 | ||
3598 | sockunion2hostprefix(su, &prefix); | |
3599 | ||
3600 | /* See if incoming connection matches a configured listen range. */ | |
3601 | group = peer_group_lookup_dynamic_neighbor(bgp, &prefix, &listen_range); | |
3602 | ||
3603 | if (!group) | |
3604 | return NULL; | |
3605 | ||
3606 | ||
3607 | gbgp = group->bgp; | |
3608 | ||
3609 | if (!gbgp) | |
3610 | return NULL; | |
3611 | ||
3612 | prefix2str(&prefix, buf, sizeof(buf)); | |
3613 | prefix2str(listen_range, buf1, sizeof(buf1)); | |
3614 | ||
3615 | if (bgp_debug_neighbor_events(NULL)) | |
3616 | zlog_debug( | |
3617 | "Dynamic Neighbor %s matches group %s listen range %s", | |
3618 | buf, group->name, buf1); | |
3619 | ||
3620 | /* Are we within the listen limit? */ | |
3621 | dncount = gbgp->dynamic_neighbors_count; | |
3622 | ||
3623 | if (dncount >= gbgp->dynamic_neighbors_limit) { | |
3624 | if (bgp_debug_neighbor_events(NULL)) | |
3625 | zlog_debug("Dynamic Neighbor %s rejected - at limit %d", | |
3626 | inet_sutop(su, buf), | |
3627 | gbgp->dynamic_neighbors_limit); | |
3628 | return NULL; | |
3629 | } | |
3630 | ||
3631 | /* Ensure group is not disabled. */ | |
3632 | if (CHECK_FLAG(group->conf->flags, PEER_FLAG_SHUTDOWN)) { | |
3633 | if (bgp_debug_neighbor_events(NULL)) | |
3634 | zlog_debug( | |
3635 | "Dynamic Neighbor %s rejected - group %s disabled", | |
3636 | buf, group->name); | |
3637 | return NULL; | |
3638 | } | |
3639 | ||
3640 | /* Check that at least one AF is activated for the group. */ | |
3641 | if (!peer_group_af_configured(group)) { | |
3642 | if (bgp_debug_neighbor_events(NULL)) | |
3643 | zlog_debug( | |
3644 | "Dynamic Neighbor %s rejected - no AF activated for group %s", | |
3645 | buf, group->name); | |
3646 | return NULL; | |
3647 | } | |
3648 | ||
3649 | /* Create dynamic peer and bind to associated group. */ | |
3650 | peer = peer_create_bind_dynamic_neighbor(gbgp, su, group); | |
3651 | assert(peer); | |
3652 | ||
3653 | gbgp->dynamic_neighbors_count = ++dncount; | |
3654 | ||
3655 | if (bgp_debug_neighbor_events(peer)) | |
3656 | zlog_debug("%s Dynamic Neighbor added, group %s count %d", | |
3657 | peer->host, group->name, dncount); | |
3658 | ||
3659 | return peer; | |
3660 | } | |
3661 | ||
cc32742c | 3662 | static void peer_drop_dynamic_neighbor(struct peer *peer) |
d62a17ae | 3663 | { |
3664 | int dncount = -1; | |
cc32742c | 3665 | if (peer->group->bgp) { |
d62a17ae | 3666 | dncount = peer->group->bgp->dynamic_neighbors_count; |
3667 | if (dncount) | |
3668 | peer->group->bgp->dynamic_neighbors_count = --dncount; | |
3669 | } | |
3670 | if (bgp_debug_neighbor_events(peer)) | |
3671 | zlog_debug("%s dropped from group %s, count %d", peer->host, | |
3672 | peer->group->name, dncount); | |
3673 | } | |
3674 | ||
d62a17ae | 3675 | /* If peer is configured at least one address family return 1. */ |
3676 | int peer_active(struct peer *peer) | |
3677 | { | |
3678 | if (BGP_PEER_SU_UNSPEC(peer)) | |
3679 | return 0; | |
3680 | if (peer->afc[AFI_IP][SAFI_UNICAST] || peer->afc[AFI_IP][SAFI_MULTICAST] | |
3681 | || peer->afc[AFI_IP][SAFI_LABELED_UNICAST] | |
3682 | || peer->afc[AFI_IP][SAFI_MPLS_VPN] || peer->afc[AFI_IP][SAFI_ENCAP] | |
7c40bf39 | 3683 | || peer->afc[AFI_IP][SAFI_FLOWSPEC] |
d62a17ae | 3684 | || peer->afc[AFI_IP6][SAFI_UNICAST] |
3685 | || peer->afc[AFI_IP6][SAFI_MULTICAST] | |
3686 | || peer->afc[AFI_IP6][SAFI_LABELED_UNICAST] | |
3687 | || peer->afc[AFI_IP6][SAFI_MPLS_VPN] | |
3688 | || peer->afc[AFI_IP6][SAFI_ENCAP] | |
7c40bf39 | 3689 | || peer->afc[AFI_IP6][SAFI_FLOWSPEC] |
d62a17ae | 3690 | || peer->afc[AFI_L2VPN][SAFI_EVPN]) |
3691 | return 1; | |
3692 | return 0; | |
3693 | } | |
3694 | ||
3695 | /* If peer is negotiated at least one address family return 1. */ | |
3696 | int peer_active_nego(struct peer *peer) | |
3697 | { | |
3698 | if (peer->afc_nego[AFI_IP][SAFI_UNICAST] | |
3699 | || peer->afc_nego[AFI_IP][SAFI_MULTICAST] | |
3700 | || peer->afc_nego[AFI_IP][SAFI_LABELED_UNICAST] | |
3701 | || peer->afc_nego[AFI_IP][SAFI_MPLS_VPN] | |
3702 | || peer->afc_nego[AFI_IP][SAFI_ENCAP] | |
7c40bf39 | 3703 | || peer->afc_nego[AFI_IP][SAFI_FLOWSPEC] |
d62a17ae | 3704 | || peer->afc_nego[AFI_IP6][SAFI_UNICAST] |
3705 | || peer->afc_nego[AFI_IP6][SAFI_MULTICAST] | |
3706 | || peer->afc_nego[AFI_IP6][SAFI_LABELED_UNICAST] | |
3707 | || peer->afc_nego[AFI_IP6][SAFI_MPLS_VPN] | |
3708 | || peer->afc_nego[AFI_IP6][SAFI_ENCAP] | |
7c40bf39 | 3709 | || peer->afc_nego[AFI_IP6][SAFI_FLOWSPEC] |
d62a17ae | 3710 | || peer->afc_nego[AFI_L2VPN][SAFI_EVPN]) |
3711 | return 1; | |
3712 | return 0; | |
3713 | } | |
3714 | ||
dcc68b5e | 3715 | void peer_change_action(struct peer *peer, afi_t afi, safi_t safi, |
d62a17ae | 3716 | enum peer_change_type type) |
3717 | { | |
3718 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
3719 | return; | |
3720 | ||
3721 | if (peer->status != Established) | |
3722 | return; | |
3723 | ||
3724 | if (type == peer_change_reset) { | |
3725 | /* If we're resetting session, we've to delete both peer struct | |
3726 | */ | |
3727 | if ((peer->doppelganger) | |
3728 | && (peer->doppelganger->status != Deleted) | |
3729 | && (!CHECK_FLAG(peer->doppelganger->flags, | |
3730 | PEER_FLAG_CONFIG_NODE))) | |
3731 | peer_delete(peer->doppelganger); | |
3732 | ||
3733 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3734 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
3735 | } else if (type == peer_change_reset_in) { | |
3736 | if (CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_OLD_RCV) | |
3737 | || CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_NEW_RCV)) | |
3738 | bgp_route_refresh_send(peer, afi, safi, 0, 0, 0); | |
3739 | else { | |
3740 | if ((peer->doppelganger) | |
3741 | && (peer->doppelganger->status != Deleted) | |
3742 | && (!CHECK_FLAG(peer->doppelganger->flags, | |
3743 | PEER_FLAG_CONFIG_NODE))) | |
3744 | peer_delete(peer->doppelganger); | |
3745 | ||
3746 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3747 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
3748 | } | |
3749 | } else if (type == peer_change_reset_out) { | |
3750 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
3751 | bgp_announce_route(peer, afi, safi); | |
3752 | } | |
3753 | } | |
3754 | ||
3755 | struct peer_flag_action { | |
3756 | /* Peer's flag. */ | |
d7c0a89a | 3757 | uint32_t flag; |
d62a17ae | 3758 | |
3759 | /* This flag can be set for peer-group member. */ | |
d7c0a89a | 3760 | uint8_t not_for_member; |
d62a17ae | 3761 | |
3762 | /* Action when the flag is changed. */ | |
3763 | enum peer_change_type type; | |
d62a17ae | 3764 | }; |
3765 | ||
3766 | static const struct peer_flag_action peer_flag_action_list[] = { | |
3767 | {PEER_FLAG_PASSIVE, 0, peer_change_reset}, | |
3768 | {PEER_FLAG_SHUTDOWN, 0, peer_change_reset}, | |
3769 | {PEER_FLAG_DONT_CAPABILITY, 0, peer_change_none}, | |
3770 | {PEER_FLAG_OVERRIDE_CAPABILITY, 0, peer_change_none}, | |
3771 | {PEER_FLAG_STRICT_CAP_MATCH, 0, peer_change_none}, | |
3772 | {PEER_FLAG_DYNAMIC_CAPABILITY, 0, peer_change_reset}, | |
3773 | {PEER_FLAG_DISABLE_CONNECTED_CHECK, 0, peer_change_reset}, | |
3774 | {PEER_FLAG_CAPABILITY_ENHE, 0, peer_change_reset}, | |
47cbc09b | 3775 | {PEER_FLAG_ENFORCE_FIRST_AS, 0, peer_change_reset_in}, |
b90a8e13 PM |
3776 | {PEER_FLAG_ROUTEADV, 0, peer_change_none}, |
3777 | {PEER_FLAG_TIMER, 0, peer_change_none}, | |
3778 | {PEER_FLAG_TIMER_CONNECT, 0, peer_change_none}, | |
a14810f4 PM |
3779 | {PEER_FLAG_PASSWORD, 0, peer_change_none}, |
3780 | {PEER_FLAG_LOCAL_AS, 0, peer_change_none}, | |
3781 | {PEER_FLAG_LOCAL_AS_NO_PREPEND, 0, peer_change_none}, | |
3782 | {PEER_FLAG_LOCAL_AS_REPLACE_AS, 0, peer_change_none}, | |
3783 | {PEER_FLAG_UPDATE_SOURCE, 0, peer_change_none}, | |
d62a17ae | 3784 | {0, 0, 0}}; |
3785 | ||
3786 | static const struct peer_flag_action peer_af_flag_action_list[] = { | |
3787 | {PEER_FLAG_SEND_COMMUNITY, 1, peer_change_reset_out}, | |
3788 | {PEER_FLAG_SEND_EXT_COMMUNITY, 1, peer_change_reset_out}, | |
3789 | {PEER_FLAG_SEND_LARGE_COMMUNITY, 1, peer_change_reset_out}, | |
3790 | {PEER_FLAG_NEXTHOP_SELF, 1, peer_change_reset_out}, | |
3791 | {PEER_FLAG_REFLECTOR_CLIENT, 1, peer_change_reset}, | |
3792 | {PEER_FLAG_RSERVER_CLIENT, 1, peer_change_reset}, | |
3793 | {PEER_FLAG_SOFT_RECONFIG, 0, peer_change_reset_in}, | |
3794 | {PEER_FLAG_AS_PATH_UNCHANGED, 1, peer_change_reset_out}, | |
3795 | {PEER_FLAG_NEXTHOP_UNCHANGED, 1, peer_change_reset_out}, | |
3796 | {PEER_FLAG_MED_UNCHANGED, 1, peer_change_reset_out}, | |
598ce6bd | 3797 | {PEER_FLAG_DEFAULT_ORIGINATE, 0, peer_change_none}, |
d62a17ae | 3798 | {PEER_FLAG_REMOVE_PRIVATE_AS, 1, peer_change_reset_out}, |
3799 | {PEER_FLAG_ALLOWAS_IN, 0, peer_change_reset_in}, | |
3800 | {PEER_FLAG_ALLOWAS_IN_ORIGIN, 0, peer_change_reset_in}, | |
3801 | {PEER_FLAG_ORF_PREFIX_SM, 1, peer_change_reset}, | |
3802 | {PEER_FLAG_ORF_PREFIX_RM, 1, peer_change_reset}, | |
598ce6bd PM |
3803 | {PEER_FLAG_MAX_PREFIX, 0, peer_change_none}, |
3804 | {PEER_FLAG_MAX_PREFIX_WARNING, 0, peer_change_none}, | |
d62a17ae | 3805 | {PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED, 0, peer_change_reset_out}, |
3806 | {PEER_FLAG_FORCE_NEXTHOP_SELF, 1, peer_change_reset_out}, | |
3807 | {PEER_FLAG_REMOVE_PRIVATE_AS_ALL, 1, peer_change_reset_out}, | |
3808 | {PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE, 1, peer_change_reset_out}, | |
3809 | {PEER_FLAG_AS_OVERRIDE, 1, peer_change_reset_out}, | |
3810 | {PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE, 1, peer_change_reset_out}, | |
d62a17ae | 3811 | {PEER_FLAG_WEIGHT, 0, peer_change_reset_in}, |
3812 | {0, 0, 0}}; | |
3813 | ||
3814 | /* Proper action set. */ | |
3815 | static int peer_flag_action_set(const struct peer_flag_action *action_list, | |
3816 | int size, struct peer_flag_action *action, | |
d7c0a89a | 3817 | uint32_t flag) |
d62a17ae | 3818 | { |
3819 | int i; | |
3820 | int found = 0; | |
3821 | int reset_in = 0; | |
3822 | int reset_out = 0; | |
3823 | const struct peer_flag_action *match = NULL; | |
3824 | ||
3825 | /* Check peer's frag action. */ | |
3826 | for (i = 0; i < size; i++) { | |
3827 | match = &action_list[i]; | |
3828 | ||
3829 | if (match->flag == 0) | |
3830 | break; | |
3831 | ||
3832 | if (match->flag & flag) { | |
3833 | found = 1; | |
3834 | ||
3835 | if (match->type == peer_change_reset_in) | |
3836 | reset_in = 1; | |
3837 | if (match->type == peer_change_reset_out) | |
3838 | reset_out = 1; | |
3839 | if (match->type == peer_change_reset) { | |
3840 | reset_in = 1; | |
3841 | reset_out = 1; | |
3842 | } | |
3843 | if (match->not_for_member) | |
3844 | action->not_for_member = 1; | |
3845 | } | |
3846 | } | |
3847 | ||
3848 | /* Set peer clear type. */ | |
3849 | if (reset_in && reset_out) | |
3850 | action->type = peer_change_reset; | |
3851 | else if (reset_in) | |
3852 | action->type = peer_change_reset_in; | |
3853 | else if (reset_out) | |
3854 | action->type = peer_change_reset_out; | |
3855 | else | |
3856 | action->type = peer_change_none; | |
3857 | ||
3858 | return found; | |
3859 | } | |
3860 | ||
d7c0a89a | 3861 | static void peer_flag_modify_action(struct peer *peer, uint32_t flag) |
d62a17ae | 3862 | { |
3863 | if (flag == PEER_FLAG_SHUTDOWN) { | |
3864 | if (CHECK_FLAG(peer->flags, flag)) { | |
3865 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT)) | |
3866 | peer_nsf_stop(peer); | |
3867 | ||
3868 | UNSET_FLAG(peer->sflags, PEER_STATUS_PREFIX_OVERFLOW); | |
3869 | if (peer->t_pmax_restart) { | |
3870 | BGP_TIMER_OFF(peer->t_pmax_restart); | |
3871 | if (bgp_debug_neighbor_events(peer)) | |
3872 | zlog_debug( | |
3873 | "%s Maximum-prefix restart timer canceled", | |
3874 | peer->host); | |
3875 | } | |
3876 | ||
3877 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT)) | |
3878 | peer_nsf_stop(peer); | |
3879 | ||
3880 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
3881 | char *msg = peer->tx_shutdown_message; | |
3882 | size_t msglen; | |
3883 | ||
3884 | if (!msg && peer_group_active(peer)) | |
3885 | msg = peer->group->conf | |
3886 | ->tx_shutdown_message; | |
3887 | msglen = msg ? strlen(msg) : 0; | |
3888 | if (msglen > 128) | |
3889 | msglen = 128; | |
3890 | ||
3891 | if (msglen) { | |
d7c0a89a | 3892 | uint8_t msgbuf[129]; |
d62a17ae | 3893 | |
3894 | msgbuf[0] = msglen; | |
3895 | memcpy(msgbuf + 1, msg, msglen); | |
3896 | ||
3897 | bgp_notify_send_with_data( | |
3898 | peer, BGP_NOTIFY_CEASE, | |
3899 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN, | |
3900 | msgbuf, msglen + 1); | |
3901 | } else | |
3902 | bgp_notify_send( | |
3903 | peer, BGP_NOTIFY_CEASE, | |
3904 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN); | |
3905 | } else | |
3906 | bgp_session_reset(peer); | |
3907 | } else { | |
3908 | peer->v_start = BGP_INIT_START_TIMER; | |
3909 | BGP_EVENT_ADD(peer, BGP_Stop); | |
3910 | } | |
3911 | } else if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
3912 | if (flag == PEER_FLAG_DYNAMIC_CAPABILITY) | |
3913 | peer->last_reset = PEER_DOWN_CAPABILITY_CHANGE; | |
3914 | else if (flag == PEER_FLAG_PASSIVE) | |
3915 | peer->last_reset = PEER_DOWN_PASSIVE_CHANGE; | |
3916 | else if (flag == PEER_FLAG_DISABLE_CONNECTED_CHECK) | |
3917 | peer->last_reset = PEER_DOWN_MULTIHOP_CHANGE; | |
3918 | ||
3919 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3920 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
3921 | } else | |
3922 | bgp_session_reset(peer); | |
3923 | } | |
3924 | ||
3925 | /* Change specified peer flag. */ | |
d7c0a89a | 3926 | static int peer_flag_modify(struct peer *peer, uint32_t flag, int set) |
d62a17ae | 3927 | { |
3928 | int found; | |
3929 | int size; | |
9fb964de PM |
3930 | bool invert, member_invert; |
3931 | struct peer *member; | |
d62a17ae | 3932 | struct listnode *node, *nnode; |
3933 | struct peer_flag_action action; | |
3934 | ||
3935 | memset(&action, 0, sizeof(struct peer_flag_action)); | |
3936 | size = sizeof peer_flag_action_list / sizeof(struct peer_flag_action); | |
3937 | ||
9fb964de | 3938 | invert = CHECK_FLAG(peer->flags_invert, flag); |
d62a17ae | 3939 | found = peer_flag_action_set(peer_flag_action_list, size, &action, |
3940 | flag); | |
3941 | ||
9fb964de | 3942 | /* Abort if no flag action exists. */ |
d62a17ae | 3943 | if (!found) |
3944 | return BGP_ERR_INVALID_FLAG; | |
3945 | ||
9fb964de | 3946 | /* Check for flag conflict: STRICT_CAP_MATCH && OVERRIDE_CAPABILITY */ |
d62a17ae | 3947 | if (set && CHECK_FLAG(peer->flags | flag, PEER_FLAG_STRICT_CAP_MATCH) |
3948 | && CHECK_FLAG(peer->flags | flag, PEER_FLAG_OVERRIDE_CAPABILITY)) | |
3949 | return BGP_ERR_PEER_FLAG_CONFLICT; | |
3950 | ||
9fb964de | 3951 | /* Handle flag updates where desired state matches current state. */ |
d62a17ae | 3952 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
9fb964de PM |
3953 | if (set && CHECK_FLAG(peer->flags, flag)) { |
3954 | COND_FLAG(peer->flags_override, flag, !invert); | |
d62a17ae | 3955 | return 0; |
9fb964de PM |
3956 | } |
3957 | ||
3958 | if (!set && !CHECK_FLAG(peer->flags, flag)) { | |
3959 | COND_FLAG(peer->flags_override, flag, invert); | |
d62a17ae | 3960 | return 0; |
9fb964de | 3961 | } |
d62a17ae | 3962 | } |
3963 | ||
9fb964de PM |
3964 | /* Inherit from peer-group or set/unset flags accordingly. */ |
3965 | if (peer_group_active(peer) && set == invert) | |
3966 | peer_flag_inherit(peer, flag); | |
d62a17ae | 3967 | else |
9fb964de | 3968 | COND_FLAG(peer->flags, flag, set); |
d62a17ae | 3969 | |
9fb964de | 3970 | /* Check if handling a regular peer. */ |
d62a17ae | 3971 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
9fb964de PM |
3972 | /* Update flag override state accordingly. */ |
3973 | COND_FLAG(peer->flags_override, flag, set != invert); | |
3974 | ||
3975 | /* Execute flag action on peer. */ | |
d62a17ae | 3976 | if (action.type == peer_change_reset) |
3977 | peer_flag_modify_action(peer, flag); | |
3978 | ||
9fb964de | 3979 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 3980 | return 0; |
3981 | } | |
3982 | ||
1ea03b90 DS |
3983 | if (set && flag == PEER_FLAG_CAPABILITY_ENHE) |
3984 | bgp_nht_register_enhe_capability_interfaces(peer); | |
3985 | ||
9fb964de PM |
3986 | /* |
3987 | * Update peer-group members, unless they are explicitely overriding | |
3988 | * peer-group configuration. | |
3989 | */ | |
3990 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
3991 | /* Skip peers with overridden configuration. */ | |
3992 | if (CHECK_FLAG(member->flags_override, flag)) | |
3993 | continue; | |
d62a17ae | 3994 | |
527de3dc PM |
3995 | /* Check if only member without group is inverted. */ |
3996 | member_invert = | |
3997 | CHECK_FLAG(member->flags_invert, flag) && !invert; | |
d62a17ae | 3998 | |
9fb964de PM |
3999 | /* Skip peers with equivalent configuration. */ |
4000 | if (set != member_invert && CHECK_FLAG(member->flags, flag)) | |
d62a17ae | 4001 | continue; |
4002 | ||
9fb964de | 4003 | if (set == member_invert && !CHECK_FLAG(member->flags, flag)) |
d62a17ae | 4004 | continue; |
4005 | ||
9fb964de PM |
4006 | /* Update flag on peer-group member. */ |
4007 | COND_FLAG(member->flags, flag, set != member_invert); | |
d62a17ae | 4008 | |
1ea03b90 DS |
4009 | if (set && flag == PEER_FLAG_CAPABILITY_ENHE) |
4010 | bgp_nht_register_enhe_capability_interfaces(member); | |
4011 | ||
9fb964de | 4012 | /* Execute flag action on peer-group member. */ |
d62a17ae | 4013 | if (action.type == peer_change_reset) |
9fb964de | 4014 | peer_flag_modify_action(member, flag); |
d62a17ae | 4015 | } |
9fb964de | 4016 | |
d62a17ae | 4017 | return 0; |
4018 | } | |
4019 | ||
d7c0a89a | 4020 | int peer_flag_set(struct peer *peer, uint32_t flag) |
d62a17ae | 4021 | { |
4022 | return peer_flag_modify(peer, flag, 1); | |
4023 | } | |
4024 | ||
d7c0a89a | 4025 | int peer_flag_unset(struct peer *peer, uint32_t flag) |
d62a17ae | 4026 | { |
4027 | return peer_flag_modify(peer, flag, 0); | |
4028 | } | |
4029 | ||
4030 | static int peer_af_flag_modify(struct peer *peer, afi_t afi, safi_t safi, | |
27c05d4d | 4031 | uint32_t flag, bool set) |
d62a17ae | 4032 | { |
4033 | int found; | |
4034 | int size; | |
527de3dc | 4035 | bool invert, member_invert; |
527de3dc | 4036 | struct peer *member; |
d62a17ae | 4037 | struct listnode *node, *nnode; |
d62a17ae | 4038 | struct peer_flag_action action; |
d62a17ae | 4039 | |
4040 | memset(&action, 0, sizeof(struct peer_flag_action)); | |
4041 | size = sizeof peer_af_flag_action_list | |
4042 | / sizeof(struct peer_flag_action); | |
4043 | ||
27c05d4d | 4044 | invert = CHECK_FLAG(peer->af_flags_invert[afi][safi], flag); |
d62a17ae | 4045 | found = peer_flag_action_set(peer_af_flag_action_list, size, &action, |
4046 | flag); | |
4047 | ||
527de3dc | 4048 | /* Abort if flag action exists. */ |
d62a17ae | 4049 | if (!found) |
4050 | return BGP_ERR_INVALID_FLAG; | |
4051 | ||
4052 | /* Special check for reflector client. */ | |
4053 | if (flag & PEER_FLAG_REFLECTOR_CLIENT | |
4054 | && peer_sort(peer) != BGP_PEER_IBGP) | |
4055 | return BGP_ERR_NOT_INTERNAL_PEER; | |
4056 | ||
4057 | /* Special check for remove-private-AS. */ | |
4058 | if (flag & PEER_FLAG_REMOVE_PRIVATE_AS | |
4059 | && peer_sort(peer) == BGP_PEER_IBGP) | |
4060 | return BGP_ERR_REMOVE_PRIVATE_AS; | |
4061 | ||
4062 | /* as-override is not allowed for IBGP peers */ | |
4063 | if (flag & PEER_FLAG_AS_OVERRIDE && peer_sort(peer) == BGP_PEER_IBGP) | |
4064 | return BGP_ERR_AS_OVERRIDE; | |
4065 | ||
527de3dc | 4066 | /* Handle flag updates where desired state matches current state. */ |
d62a17ae | 4067 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
598ce6bd | 4068 | if (set && CHECK_FLAG(peer->af_flags[afi][safi], flag)) { |
527de3dc PM |
4069 | COND_FLAG(peer->af_flags_override[afi][safi], flag, |
4070 | !invert); | |
d62a17ae | 4071 | return 0; |
598ce6bd PM |
4072 | } |
4073 | ||
4074 | if (!set && !CHECK_FLAG(peer->af_flags[afi][safi], flag)) { | |
527de3dc PM |
4075 | COND_FLAG(peer->af_flags_override[afi][safi], flag, |
4076 | invert); | |
d62a17ae | 4077 | return 0; |
598ce6bd | 4078 | } |
d62a17ae | 4079 | } |
4080 | ||
ace295a9 MK |
4081 | /* |
4082 | * For EVPN we implicitly set the NEXTHOP_UNCHANGED flag, | |
4083 | * if we are setting/unsetting flags which conflict with this flag | |
4084 | * handle accordingly | |
4085 | */ | |
4086 | if (afi == AFI_L2VPN && safi == SAFI_EVPN) { | |
4087 | if (set) { | |
4088 | ||
3518f352 DS |
4089 | /* |
4090 | * if we are setting NEXTHOP_SELF, we need to unset the | |
4091 | * NEXTHOP_UNCHANGED flag | |
4092 | */ | |
ace295a9 MK |
4093 | if (CHECK_FLAG(flag, PEER_FLAG_NEXTHOP_SELF) || |
4094 | CHECK_FLAG(flag, PEER_FLAG_FORCE_NEXTHOP_SELF)) | |
4095 | UNSET_FLAG(peer->af_flags[afi][safi], | |
4096 | PEER_FLAG_NEXTHOP_UNCHANGED); | |
4097 | } else { | |
4098 | ||
3518f352 DS |
4099 | /* |
4100 | * if we are unsetting NEXTHOP_SELF, we need to set the | |
ace295a9 MK |
4101 | * NEXTHOP_UNCHANGED flag to reset the defaults for EVPN |
4102 | */ | |
4103 | if (CHECK_FLAG(flag, PEER_FLAG_NEXTHOP_SELF) || | |
4104 | CHECK_FLAG(flag, PEER_FLAG_FORCE_NEXTHOP_SELF)) | |
4105 | SET_FLAG(peer->af_flags[afi][safi], | |
4106 | PEER_FLAG_NEXTHOP_UNCHANGED); | |
4107 | } | |
4108 | } | |
4109 | ||
527de3dc PM |
4110 | /* Inherit from peer-group or set/unset flags accordingly. */ |
4111 | if (peer_group_active(peer) && set == invert) | |
4112 | peer_af_flag_inherit(peer, afi, safi, flag); | |
4113 | else | |
4114 | COND_FLAG(peer->af_flags[afi][safi], flag, set); | |
d62a17ae | 4115 | |
4116 | /* Execute action when peer is established. */ | |
4117 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP) | |
4118 | && peer->status == Established) { | |
4119 | if (!set && flag == PEER_FLAG_SOFT_RECONFIG) | |
4120 | bgp_clear_adj_in(peer, afi, safi); | |
4121 | else { | |
4122 | if (flag == PEER_FLAG_REFLECTOR_CLIENT) | |
4123 | peer->last_reset = PEER_DOWN_RR_CLIENT_CHANGE; | |
4124 | else if (flag == PEER_FLAG_RSERVER_CLIENT) | |
4125 | peer->last_reset = PEER_DOWN_RS_CLIENT_CHANGE; | |
4126 | else if (flag == PEER_FLAG_ORF_PREFIX_SM) | |
4127 | peer->last_reset = PEER_DOWN_CAPABILITY_CHANGE; | |
4128 | else if (flag == PEER_FLAG_ORF_PREFIX_RM) | |
4129 | peer->last_reset = PEER_DOWN_CAPABILITY_CHANGE; | |
4130 | ||
4131 | peer_change_action(peer, afi, safi, action.type); | |
4132 | } | |
4133 | } | |
4134 | ||
527de3dc PM |
4135 | /* Check if handling a regular peer. */ |
4136 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4137 | COND_FLAG(peer->af_flags_override[afi][safi], flag, | |
4138 | set != invert); | |
4139 | } else { | |
4140 | /* | |
4141 | * Update peer-group members, unless they are explicitely | |
4142 | * overriding peer-group configuration. | |
4143 | */ | |
4144 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, | |
4145 | member)) { | |
4146 | /* Skip peers with overridden configuration. */ | |
4147 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
598ce6bd PM |
4148 | flag)) |
4149 | continue; | |
4150 | ||
527de3dc PM |
4151 | /* Check if only member without group is inverted. */ |
4152 | member_invert = | |
4153 | CHECK_FLAG(member->af_flags_invert[afi][safi], | |
4154 | flag) | |
4155 | && !invert; | |
4156 | ||
4157 | /* Skip peers with equivalent configuration. */ | |
4158 | if (set != member_invert | |
4159 | && CHECK_FLAG(member->af_flags[afi][safi], flag)) | |
d62a17ae | 4160 | continue; |
4161 | ||
527de3dc PM |
4162 | if (set == member_invert |
4163 | && !CHECK_FLAG(member->af_flags[afi][safi], flag)) | |
d62a17ae | 4164 | continue; |
4165 | ||
527de3dc PM |
4166 | /* Update flag on peer-group member. */ |
4167 | COND_FLAG(member->af_flags[afi][safi], flag, | |
4168 | set != member_invert); | |
d62a17ae | 4169 | |
527de3dc PM |
4170 | /* Execute flag action on peer-group member. */ |
4171 | if (member->status == Established) { | |
d62a17ae | 4172 | if (!set && flag == PEER_FLAG_SOFT_RECONFIG) |
527de3dc | 4173 | bgp_clear_adj_in(member, afi, safi); |
d62a17ae | 4174 | else { |
4175 | if (flag == PEER_FLAG_REFLECTOR_CLIENT) | |
527de3dc | 4176 | member->last_reset = |
d62a17ae | 4177 | PEER_DOWN_RR_CLIENT_CHANGE; |
4178 | else if (flag | |
4179 | == PEER_FLAG_RSERVER_CLIENT) | |
527de3dc | 4180 | member->last_reset = |
d62a17ae | 4181 | PEER_DOWN_RS_CLIENT_CHANGE; |
4182 | else if (flag | |
4183 | == PEER_FLAG_ORF_PREFIX_SM) | |
527de3dc | 4184 | member->last_reset = |
d62a17ae | 4185 | PEER_DOWN_CAPABILITY_CHANGE; |
4186 | else if (flag | |
4187 | == PEER_FLAG_ORF_PREFIX_RM) | |
527de3dc | 4188 | member->last_reset = |
d62a17ae | 4189 | PEER_DOWN_CAPABILITY_CHANGE; |
4190 | ||
527de3dc | 4191 | peer_change_action(member, afi, safi, |
d62a17ae | 4192 | action.type); |
4193 | } | |
4194 | } | |
4195 | } | |
4196 | } | |
4197 | ||
d62a17ae | 4198 | return 0; |
4199 | } | |
4200 | ||
d7c0a89a | 4201 | int peer_af_flag_set(struct peer *peer, afi_t afi, safi_t safi, uint32_t flag) |
d62a17ae | 4202 | { |
4203 | return peer_af_flag_modify(peer, afi, safi, flag, 1); | |
4204 | } | |
4205 | ||
d7c0a89a | 4206 | int peer_af_flag_unset(struct peer *peer, afi_t afi, safi_t safi, uint32_t flag) |
d62a17ae | 4207 | { |
4208 | return peer_af_flag_modify(peer, afi, safi, flag, 0); | |
4209 | } | |
4210 | ||
4211 | ||
4212 | int peer_tx_shutdown_message_set(struct peer *peer, const char *msg) | |
4213 | { | |
4214 | XFREE(MTYPE_PEER_TX_SHUTDOWN_MSG, peer->tx_shutdown_message); | |
4215 | peer->tx_shutdown_message = | |
4216 | msg ? XSTRDUP(MTYPE_PEER_TX_SHUTDOWN_MSG, msg) : NULL; | |
4217 | return 0; | |
4218 | } | |
4219 | ||
4220 | int peer_tx_shutdown_message_unset(struct peer *peer) | |
4221 | { | |
4222 | XFREE(MTYPE_PEER_TX_SHUTDOWN_MSG, peer->tx_shutdown_message); | |
4223 | return 0; | |
4224 | } | |
4225 | ||
4226 | ||
4227 | /* EBGP multihop configuration. */ | |
4228 | int peer_ebgp_multihop_set(struct peer *peer, int ttl) | |
4229 | { | |
4230 | struct peer_group *group; | |
4231 | struct listnode *node, *nnode; | |
4232 | struct peer *peer1; | |
4233 | ||
4234 | if (peer->sort == BGP_PEER_IBGP || peer->conf_if) | |
4235 | return 0; | |
4236 | ||
4237 | /* see comment in peer_ttl_security_hops_set() */ | |
4238 | if (ttl != MAXTTL) { | |
4239 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4240 | group = peer->group; | |
4241 | if (group->conf->gtsm_hops != 0) | |
4242 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
4243 | ||
4244 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, | |
4245 | peer1)) { | |
4246 | if (peer1->sort == BGP_PEER_IBGP) | |
4247 | continue; | |
4248 | ||
4249 | if (peer1->gtsm_hops != 0) | |
4250 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
4251 | } | |
4252 | } else { | |
4253 | if (peer->gtsm_hops != 0) | |
4254 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
4255 | } | |
4256 | } | |
4257 | ||
4258 | peer->ttl = ttl; | |
4259 | ||
4260 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4261 | if (peer->fd >= 0 && peer->sort != BGP_PEER_IBGP) { | |
4262 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
4263 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4264 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4265 | else | |
4266 | bgp_session_reset(peer); | |
4267 | } | |
4268 | } else { | |
4269 | group = peer->group; | |
4270 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
4271 | if (peer->sort == BGP_PEER_IBGP) | |
4272 | continue; | |
4273 | ||
4274 | peer->ttl = group->conf->ttl; | |
4275 | ||
4276 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
4277 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4278 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4279 | else | |
4280 | bgp_session_reset(peer); | |
4281 | } | |
4282 | } | |
4283 | return 0; | |
4284 | } | |
4285 | ||
4286 | int peer_ebgp_multihop_unset(struct peer *peer) | |
4287 | { | |
4288 | struct peer_group *group; | |
4289 | struct listnode *node, *nnode; | |
4290 | ||
4291 | if (peer->sort == BGP_PEER_IBGP) | |
4292 | return 0; | |
4293 | ||
4294 | if (peer->gtsm_hops != 0 && peer->ttl != MAXTTL) | |
4295 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
4296 | ||
4297 | if (peer_group_active(peer)) | |
4298 | peer->ttl = peer->group->conf->ttl; | |
4299 | else | |
4300 | peer->ttl = 1; | |
4301 | ||
4302 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4303 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
4304 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4305 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4306 | else | |
4307 | bgp_session_reset(peer); | |
4308 | } else { | |
4309 | group = peer->group; | |
4310 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
4311 | if (peer->sort == BGP_PEER_IBGP) | |
4312 | continue; | |
4313 | ||
4314 | peer->ttl = 1; | |
4315 | ||
4316 | if (peer->fd >= 0) { | |
4317 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
4318 | bgp_notify_send( | |
4319 | peer, BGP_NOTIFY_CEASE, | |
4320 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4321 | else | |
4322 | bgp_session_reset(peer); | |
4323 | } | |
4324 | } | |
4325 | } | |
4326 | return 0; | |
4327 | } | |
4328 | ||
4329 | /* Neighbor description. */ | |
4330 | int peer_description_set(struct peer *peer, const char *desc) | |
4331 | { | |
4332 | if (peer->desc) | |
4333 | XFREE(MTYPE_PEER_DESC, peer->desc); | |
4334 | ||
4335 | peer->desc = XSTRDUP(MTYPE_PEER_DESC, desc); | |
4336 | ||
4337 | return 0; | |
4338 | } | |
4339 | ||
4340 | int peer_description_unset(struct peer *peer) | |
4341 | { | |
4342 | if (peer->desc) | |
4343 | XFREE(MTYPE_PEER_DESC, peer->desc); | |
4344 | ||
4345 | peer->desc = NULL; | |
4346 | ||
4347 | return 0; | |
4348 | } | |
4349 | ||
4350 | /* Neighbor update-source. */ | |
4351 | int peer_update_source_if_set(struct peer *peer, const char *ifname) | |
4352 | { | |
a14810f4 | 4353 | struct peer *member; |
d62a17ae | 4354 | struct listnode *node, *nnode; |
4355 | ||
a14810f4 PM |
4356 | /* Set flag and configuration on peer. */ |
4357 | peer_flag_set(peer, PEER_FLAG_UPDATE_SOURCE); | |
d62a17ae | 4358 | if (peer->update_if) { |
a14810f4 | 4359 | if (strcmp(peer->update_if, ifname) == 0) |
d62a17ae | 4360 | return 0; |
d62a17ae | 4361 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); |
d62a17ae | 4362 | } |
d62a17ae | 4363 | peer->update_if = XSTRDUP(MTYPE_PEER_UPDATE_SOURCE, ifname); |
a14810f4 PM |
4364 | sockunion_free(peer->update_source); |
4365 | peer->update_source = NULL; | |
d62a17ae | 4366 | |
a14810f4 | 4367 | /* Check if handling a regular peer. */ |
d62a17ae | 4368 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 4369 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 4370 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
4371 | peer->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4372 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4373 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4374 | } else | |
4375 | bgp_session_reset(peer); | |
a14810f4 PM |
4376 | |
4377 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 4378 | return 0; |
4379 | } | |
4380 | ||
a14810f4 PM |
4381 | /* |
4382 | * Set flag and configuration on all peer-group members, unless they are | |
4383 | * explicitely overriding peer-group configuration. | |
4384 | */ | |
4385 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4386 | /* Skip peers with overridden configuration. */ | |
4387 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_UPDATE_SOURCE)) | |
4388 | continue; | |
d62a17ae | 4389 | |
a14810f4 PM |
4390 | /* Skip peers with the same configuration. */ |
4391 | if (member->update_if) { | |
4392 | if (strcmp(member->update_if, ifname) == 0) | |
4393 | continue; | |
4394 | XFREE(MTYPE_PEER_UPDATE_SOURCE, member->update_if); | |
d62a17ae | 4395 | } |
4396 | ||
a14810f4 PM |
4397 | /* Set flag and configuration on peer-group member. */ |
4398 | SET_FLAG(member->flags, PEER_FLAG_UPDATE_SOURCE); | |
4399 | member->update_if = XSTRDUP(MTYPE_PEER_UPDATE_SOURCE, ifname); | |
4400 | sockunion_free(member->update_source); | |
4401 | member->update_source = NULL; | |
4402 | ||
4403 | /* Send notification or reset peer depending on state. */ | |
4404 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) { | |
4405 | member->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4406 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 4407 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
4408 | } else | |
a14810f4 | 4409 | bgp_session_reset(member); |
d62a17ae | 4410 | } |
a14810f4 | 4411 | |
d62a17ae | 4412 | return 0; |
4413 | } | |
4414 | ||
4415 | int peer_update_source_addr_set(struct peer *peer, const union sockunion *su) | |
4416 | { | |
a14810f4 | 4417 | struct peer *member; |
d62a17ae | 4418 | struct listnode *node, *nnode; |
4419 | ||
a14810f4 PM |
4420 | /* Set flag and configuration on peer. */ |
4421 | peer_flag_set(peer, PEER_FLAG_UPDATE_SOURCE); | |
d62a17ae | 4422 | if (peer->update_source) { |
a14810f4 | 4423 | if (sockunion_cmp(peer->update_source, su) == 0) |
d62a17ae | 4424 | return 0; |
4425 | sockunion_free(peer->update_source); | |
d62a17ae | 4426 | } |
d62a17ae | 4427 | peer->update_source = sockunion_dup(su); |
a14810f4 | 4428 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); |
d62a17ae | 4429 | |
a14810f4 | 4430 | /* Check if handling a regular peer. */ |
d62a17ae | 4431 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 4432 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 4433 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
4434 | peer->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4435 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4436 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4437 | } else | |
4438 | bgp_session_reset(peer); | |
a14810f4 PM |
4439 | |
4440 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 4441 | return 0; |
4442 | } | |
4443 | ||
a14810f4 PM |
4444 | /* |
4445 | * Set flag and configuration on all peer-group members, unless they are | |
4446 | * explicitely overriding peer-group configuration. | |
4447 | */ | |
4448 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4449 | /* Skip peers with overridden configuration. */ | |
4450 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_UPDATE_SOURCE)) | |
4451 | continue; | |
d62a17ae | 4452 | |
a14810f4 PM |
4453 | /* Skip peers with the same configuration. */ |
4454 | if (member->update_source) { | |
4455 | if (sockunion_cmp(member->update_source, su) == 0) | |
4456 | continue; | |
4457 | sockunion_free(member->update_source); | |
d62a17ae | 4458 | } |
4459 | ||
a14810f4 PM |
4460 | /* Set flag and configuration on peer-group member. */ |
4461 | SET_FLAG(member->flags, PEER_FLAG_UPDATE_SOURCE); | |
4462 | member->update_source = sockunion_dup(su); | |
4463 | XFREE(MTYPE_PEER_UPDATE_SOURCE, member->update_if); | |
4464 | ||
4465 | /* Send notification or reset peer depending on state. */ | |
4466 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) { | |
4467 | member->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4468 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 4469 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
4470 | } else | |
a14810f4 | 4471 | bgp_session_reset(member); |
d62a17ae | 4472 | } |
a14810f4 | 4473 | |
d62a17ae | 4474 | return 0; |
4475 | } | |
4476 | ||
4477 | int peer_update_source_unset(struct peer *peer) | |
4478 | { | |
a14810f4 | 4479 | struct peer *member; |
d62a17ae | 4480 | struct listnode *node, *nnode; |
4481 | ||
a14810f4 | 4482 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_UPDATE_SOURCE)) |
d62a17ae | 4483 | return 0; |
4484 | ||
a14810f4 PM |
4485 | /* Inherit configuration from peer-group if peer is member. */ |
4486 | if (peer_group_active(peer)) { | |
4487 | peer_flag_inherit(peer, PEER_FLAG_UPDATE_SOURCE); | |
4488 | PEER_SU_ATTR_INHERIT(peer, peer->group, update_source); | |
4489 | PEER_STR_ATTR_INHERIT(peer, peer->group, update_if, | |
4490 | MTYPE_PEER_UPDATE_SOURCE); | |
4491 | } else { | |
4492 | /* Otherwise remove flag and configuration from peer. */ | |
4493 | peer_flag_unset(peer, PEER_FLAG_UPDATE_SOURCE); | |
d62a17ae | 4494 | sockunion_free(peer->update_source); |
4495 | peer->update_source = NULL; | |
d62a17ae | 4496 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); |
d62a17ae | 4497 | } |
4498 | ||
a14810f4 | 4499 | /* Check if handling a regular peer. */ |
d62a17ae | 4500 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 4501 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 4502 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
4503 | peer->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4504 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4505 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4506 | } else | |
4507 | bgp_session_reset(peer); | |
a14810f4 PM |
4508 | |
4509 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 4510 | return 0; |
4511 | } | |
4512 | ||
a14810f4 PM |
4513 | /* |
4514 | * Set flag and configuration on all peer-group members, unless they are | |
4515 | * explicitely overriding peer-group configuration. | |
4516 | */ | |
4517 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4518 | /* Skip peers with overridden configuration. */ | |
4519 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_UPDATE_SOURCE)) | |
d62a17ae | 4520 | continue; |
4521 | ||
a14810f4 PM |
4522 | /* Skip peers with the same configuration. */ |
4523 | if (!CHECK_FLAG(member->flags, PEER_FLAG_UPDATE_SOURCE) | |
4524 | && !member->update_source && !member->update_if) | |
4525 | continue; | |
d62a17ae | 4526 | |
a14810f4 PM |
4527 | /* Remove flag and configuration on peer-group member. */ |
4528 | UNSET_FLAG(member->flags, PEER_FLAG_UPDATE_SOURCE); | |
4529 | sockunion_free(member->update_source); | |
4530 | member->update_source = NULL; | |
4531 | XFREE(MTYPE_PEER_UPDATE_SOURCE, member->update_if); | |
4532 | ||
4533 | /* Send notification or reset peer depending on state. */ | |
4534 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) { | |
4535 | member->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4536 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 4537 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
4538 | } else | |
a14810f4 | 4539 | bgp_session_reset(member); |
d62a17ae | 4540 | } |
a14810f4 | 4541 | |
d62a17ae | 4542 | return 0; |
4543 | } | |
4544 | ||
4545 | int peer_default_originate_set(struct peer *peer, afi_t afi, safi_t safi, | |
1de27621 | 4546 | const char *rmap, struct route_map *route_map) |
d62a17ae | 4547 | { |
598ce6bd | 4548 | struct peer *member; |
d62a17ae | 4549 | struct listnode *node, *nnode; |
4550 | ||
598ce6bd PM |
4551 | /* Set flag and configuration on peer. */ |
4552 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_DEFAULT_ORIGINATE); | |
4553 | if (rmap) { | |
4554 | if (!peer->default_rmap[afi][safi].name | |
4555 | || strcmp(rmap, peer->default_rmap[afi][safi].name) != 0) { | |
d62a17ae | 4556 | if (peer->default_rmap[afi][safi].name) |
4557 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
4558 | peer->default_rmap[afi][safi].name); | |
598ce6bd | 4559 | |
d62a17ae | 4560 | peer->default_rmap[afi][safi].name = |
4561 | XSTRDUP(MTYPE_ROUTE_MAP_NAME, rmap); | |
1de27621 | 4562 | peer->default_rmap[afi][safi].map = route_map; |
d62a17ae | 4563 | } |
598ce6bd PM |
4564 | } else if (!rmap) { |
4565 | if (peer->default_rmap[afi][safi].name) | |
4566 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
4567 | peer->default_rmap[afi][safi].name); | |
4568 | ||
4569 | peer->default_rmap[afi][safi].name = NULL; | |
4570 | peer->default_rmap[afi][safi].map = NULL; | |
d62a17ae | 4571 | } |
4572 | ||
598ce6bd | 4573 | /* Check if handling a regular peer. */ |
d62a17ae | 4574 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
598ce6bd | 4575 | /* Update peer route announcements. */ |
d62a17ae | 4576 | if (peer->status == Established && peer->afc_nego[afi][safi]) { |
4577 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
4578 | bgp_default_originate(peer, afi, safi, 0); | |
4579 | bgp_announce_route(peer, afi, safi); | |
4580 | } | |
598ce6bd PM |
4581 | |
4582 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 4583 | return 0; |
4584 | } | |
4585 | ||
598ce6bd PM |
4586 | /* |
4587 | * Set flag and configuration on all peer-group members, unless they are | |
4588 | * explicitely overriding peer-group configuration. | |
4589 | */ | |
4590 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4591 | /* Skip peers with overridden configuration. */ | |
4592 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
4593 | PEER_FLAG_DEFAULT_ORIGINATE)) | |
4594 | continue; | |
d62a17ae | 4595 | |
598ce6bd PM |
4596 | /* Set flag and configuration on peer-group member. */ |
4597 | SET_FLAG(member->af_flags[afi][safi], | |
4598 | PEER_FLAG_DEFAULT_ORIGINATE); | |
d62a17ae | 4599 | if (rmap) { |
598ce6bd | 4600 | if (member->default_rmap[afi][safi].name) |
d62a17ae | 4601 | XFREE(MTYPE_ROUTE_MAP_NAME, |
598ce6bd PM |
4602 | member->default_rmap[afi][safi].name); |
4603 | ||
4604 | member->default_rmap[afi][safi].name = | |
d62a17ae | 4605 | XSTRDUP(MTYPE_ROUTE_MAP_NAME, rmap); |
1de27621 | 4606 | member->default_rmap[afi][safi].map = route_map; |
d62a17ae | 4607 | } |
4608 | ||
598ce6bd PM |
4609 | /* Update peer route announcements. */ |
4610 | if (member->status == Established | |
4611 | && member->afc_nego[afi][safi]) { | |
4612 | update_group_adjust_peer( | |
4613 | peer_af_find(member, afi, safi)); | |
4614 | bgp_default_originate(member, afi, safi, 0); | |
4615 | bgp_announce_route(member, afi, safi); | |
d62a17ae | 4616 | } |
4617 | } | |
598ce6bd | 4618 | |
d62a17ae | 4619 | return 0; |
4620 | } | |
4621 | ||
4622 | int peer_default_originate_unset(struct peer *peer, afi_t afi, safi_t safi) | |
4623 | { | |
598ce6bd | 4624 | struct peer *member; |
d62a17ae | 4625 | struct listnode *node, *nnode; |
4626 | ||
598ce6bd PM |
4627 | /* Inherit configuration from peer-group if peer is member. */ |
4628 | if (peer_group_active(peer)) { | |
4629 | peer_af_flag_inherit(peer, afi, safi, | |
4630 | PEER_FLAG_DEFAULT_ORIGINATE); | |
e7103a96 PM |
4631 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
4632 | default_rmap[afi][safi].name, | |
4633 | MTYPE_ROUTE_MAP_NAME); | |
4634 | PEER_ATTR_INHERIT(peer, peer->group, | |
4635 | default_rmap[afi][safi].map); | |
598ce6bd PM |
4636 | } else { |
4637 | /* Otherwise remove flag and configuration from peer. */ | |
4638 | peer_af_flag_unset(peer, afi, safi, | |
4639 | PEER_FLAG_DEFAULT_ORIGINATE); | |
d62a17ae | 4640 | if (peer->default_rmap[afi][safi].name) |
4641 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
4642 | peer->default_rmap[afi][safi].name); | |
4643 | peer->default_rmap[afi][safi].name = NULL; | |
4644 | peer->default_rmap[afi][safi].map = NULL; | |
4645 | } | |
4646 | ||
598ce6bd | 4647 | /* Check if handling a regular peer. */ |
d62a17ae | 4648 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
598ce6bd | 4649 | /* Update peer route announcements. */ |
d62a17ae | 4650 | if (peer->status == Established && peer->afc_nego[afi][safi]) { |
4651 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
4652 | bgp_default_originate(peer, afi, safi, 1); | |
4653 | bgp_announce_route(peer, afi, safi); | |
4654 | } | |
598ce6bd PM |
4655 | |
4656 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 4657 | return 0; |
4658 | } | |
4659 | ||
598ce6bd PM |
4660 | /* |
4661 | * Remove flag and configuration from all peer-group members, unless | |
4662 | * they are explicitely overriding peer-group configuration. | |
4663 | */ | |
4664 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4665 | /* Skip peers with overridden configuration. */ | |
4666 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
4667 | PEER_FLAG_DEFAULT_ORIGINATE)) | |
4668 | continue; | |
4669 | ||
4670 | /* Remove flag and configuration on peer-group member. */ | |
d62a17ae | 4671 | UNSET_FLAG(peer->af_flags[afi][safi], |
4672 | PEER_FLAG_DEFAULT_ORIGINATE); | |
d62a17ae | 4673 | if (peer->default_rmap[afi][safi].name) |
4674 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
4675 | peer->default_rmap[afi][safi].name); | |
4676 | peer->default_rmap[afi][safi].name = NULL; | |
4677 | peer->default_rmap[afi][safi].map = NULL; | |
4678 | ||
598ce6bd | 4679 | /* Update peer route announcements. */ |
d62a17ae | 4680 | if (peer->status == Established && peer->afc_nego[afi][safi]) { |
4681 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
4682 | bgp_default_originate(peer, afi, safi, 1); | |
4683 | bgp_announce_route(peer, afi, safi); | |
4684 | } | |
4685 | } | |
598ce6bd | 4686 | |
d62a17ae | 4687 | return 0; |
4688 | } | |
4689 | ||
d7c0a89a | 4690 | int peer_port_set(struct peer *peer, uint16_t port) |
d62a17ae | 4691 | { |
4692 | peer->port = port; | |
4693 | return 0; | |
4694 | } | |
4695 | ||
4696 | int peer_port_unset(struct peer *peer) | |
4697 | { | |
4698 | peer->port = BGP_PORT_DEFAULT; | |
4699 | return 0; | |
4700 | } | |
4701 | ||
4702 | /* | |
4703 | * Helper function that is called after the name of the policy | |
4704 | * being used by a peer has changed (AF specific). Automatically | |
4705 | * initiates inbound or outbound processing as needed. | |
4706 | */ | |
4707 | static void peer_on_policy_change(struct peer *peer, afi_t afi, safi_t safi, | |
4708 | int outbound) | |
4709 | { | |
4710 | if (outbound) { | |
4711 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
4712 | if (peer->status == Established) | |
4713 | bgp_announce_route(peer, afi, safi); | |
4714 | } else { | |
4715 | if (peer->status != Established) | |
4716 | return; | |
4717 | ||
4718 | if (CHECK_FLAG(peer->af_flags[afi][safi], | |
4719 | PEER_FLAG_SOFT_RECONFIG)) | |
4720 | bgp_soft_reconfig_in(peer, afi, safi); | |
4721 | else if (CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_OLD_RCV) | |
4722 | || CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_NEW_RCV)) | |
4723 | bgp_route_refresh_send(peer, afi, safi, 0, 0, 0); | |
4724 | } | |
4725 | } | |
4726 | ||
4727 | ||
4728 | /* neighbor weight. */ | |
d7c0a89a | 4729 | int peer_weight_set(struct peer *peer, afi_t afi, safi_t safi, uint16_t weight) |
d62a17ae | 4730 | { |
598ce6bd | 4731 | struct peer *member; |
d62a17ae | 4732 | struct listnode *node, *nnode; |
4733 | ||
598ce6bd PM |
4734 | /* Set flag and configuration on peer. */ |
4735 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_WEIGHT); | |
d62a17ae | 4736 | if (peer->weight[afi][safi] != weight) { |
4737 | peer->weight[afi][safi] = weight; | |
d62a17ae | 4738 | peer_on_policy_change(peer, afi, safi, 0); |
4739 | } | |
4740 | ||
598ce6bd | 4741 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 4742 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) |
4743 | return 0; | |
4744 | ||
598ce6bd PM |
4745 | /* |
4746 | * Set flag and configuration on all peer-group members, unless they are | |
4747 | * explicitely overriding peer-group configuration. | |
4748 | */ | |
4749 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4750 | /* Skip peers with overridden configuration. */ | |
4751 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
4752 | PEER_FLAG_WEIGHT)) | |
4753 | continue; | |
4754 | ||
4755 | /* Set flag and configuration on peer-group member. */ | |
4756 | SET_FLAG(member->af_flags[afi][safi], PEER_FLAG_WEIGHT); | |
4757 | if (member->weight[afi][safi] != weight) { | |
4758 | member->weight[afi][safi] = weight; | |
4759 | peer_on_policy_change(member, afi, safi, 0); | |
d62a17ae | 4760 | } |
4761 | } | |
598ce6bd | 4762 | |
d62a17ae | 4763 | return 0; |
4764 | } | |
4765 | ||
4766 | int peer_weight_unset(struct peer *peer, afi_t afi, safi_t safi) | |
4767 | { | |
598ce6bd | 4768 | struct peer *member; |
d62a17ae | 4769 | struct listnode *node, *nnode; |
4770 | ||
598ce6bd PM |
4771 | if (!CHECK_FLAG(peer->af_flags[afi][safi], PEER_FLAG_WEIGHT)) |
4772 | return 0; | |
4773 | ||
4774 | /* Inherit configuration from peer-group if peer is member. */ | |
d62a17ae | 4775 | if (peer_group_active(peer)) { |
598ce6bd | 4776 | peer_af_flag_inherit(peer, afi, safi, PEER_FLAG_WEIGHT); |
e7103a96 | 4777 | PEER_ATTR_INHERIT(peer, peer->group, weight[afi][safi]); |
d62a17ae | 4778 | |
598ce6bd PM |
4779 | peer_on_policy_change(peer, afi, safi, 0); |
4780 | return 0; | |
d62a17ae | 4781 | } |
4782 | ||
598ce6bd PM |
4783 | /* Remove flag and configuration from peer. */ |
4784 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_WEIGHT); | |
4785 | peer->weight[afi][safi] = 0; | |
4786 | peer_on_policy_change(peer, afi, safi, 0); | |
d62a17ae | 4787 | |
598ce6bd PM |
4788 | /* Skip peer-group mechanics for regular peers. */ |
4789 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
4790 | return 0; | |
d62a17ae | 4791 | |
598ce6bd PM |
4792 | /* |
4793 | * Remove flag and configuration from all peer-group members, unless | |
4794 | * they are explicitely overriding peer-group configuration. | |
4795 | */ | |
4796 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4797 | /* Skip peers with overridden configuration. */ | |
4798 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
4799 | PEER_FLAG_WEIGHT)) | |
4800 | continue; | |
4801 | ||
4802 | /* Skip peers where flag is already disabled. */ | |
4803 | if (!CHECK_FLAG(member->af_flags[afi][safi], PEER_FLAG_WEIGHT)) | |
4804 | continue; | |
4805 | ||
4806 | /* Remove flag and configuration on peer-group member. */ | |
4807 | UNSET_FLAG(member->af_flags[afi][safi], PEER_FLAG_WEIGHT); | |
4808 | member->weight[afi][safi] = 0; | |
4809 | peer_on_policy_change(member, afi, safi, 0); | |
d62a17ae | 4810 | } |
598ce6bd | 4811 | |
d62a17ae | 4812 | return 0; |
4813 | } | |
4814 | ||
d7c0a89a | 4815 | int peer_timers_set(struct peer *peer, uint32_t keepalive, uint32_t holdtime) |
d62a17ae | 4816 | { |
b90a8e13 | 4817 | struct peer *member; |
d62a17ae | 4818 | struct listnode *node, *nnode; |
4819 | ||
d62a17ae | 4820 | if (keepalive > 65535) |
4821 | return BGP_ERR_INVALID_VALUE; | |
4822 | ||
d62a17ae | 4823 | if (holdtime > 65535) |
4824 | return BGP_ERR_INVALID_VALUE; | |
4825 | ||
d62a17ae | 4826 | if (holdtime < 3 && holdtime != 0) |
4827 | return BGP_ERR_INVALID_VALUE; | |
4828 | ||
b90a8e13 PM |
4829 | /* Set flag and configuration on peer. */ |
4830 | peer_flag_set(peer, PEER_FLAG_TIMER); | |
d62a17ae | 4831 | peer->holdtime = holdtime; |
4832 | peer->keepalive = (keepalive < holdtime / 3 ? keepalive : holdtime / 3); | |
4833 | ||
b90a8e13 PM |
4834 | /* Skip peer-group mechanics for regular peers. */ |
4835 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
4836 | return 0; | |
d25e4efc | 4837 | |
b90a8e13 PM |
4838 | /* |
4839 | * Set flag and configuration on all peer-group members, unless they are | |
4840 | * explicitely overriding peer-group configuration. | |
4841 | */ | |
4842 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4843 | /* Skip peers with overridden configuration. */ | |
4844 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_TIMER)) | |
4845 | continue; | |
d25e4efc | 4846 | |
b90a8e13 PM |
4847 | /* Set flag and configuration on peer-group member. */ |
4848 | SET_FLAG(member->flags, PEER_FLAG_TIMER); | |
4849 | PEER_ATTR_INHERIT(peer, peer->group, holdtime); | |
4850 | PEER_ATTR_INHERIT(peer, peer->group, keepalive); | |
d62a17ae | 4851 | } |
d25e4efc | 4852 | |
d62a17ae | 4853 | return 0; |
4854 | } | |
4855 | ||
4856 | int peer_timers_unset(struct peer *peer) | |
4857 | { | |
b90a8e13 | 4858 | struct peer *member; |
d62a17ae | 4859 | struct listnode *node, *nnode; |
4860 | ||
b90a8e13 PM |
4861 | /* Inherit configuration from peer-group if peer is member. */ |
4862 | if (peer_group_active(peer)) { | |
4863 | peer_flag_inherit(peer, PEER_FLAG_TIMER); | |
4864 | PEER_ATTR_INHERIT(peer, peer->group, holdtime); | |
4865 | PEER_ATTR_INHERIT(peer, peer->group, keepalive); | |
4866 | } else { | |
4867 | /* Otherwise remove flag and configuration from peer. */ | |
4868 | peer_flag_unset(peer, PEER_FLAG_TIMER); | |
d25e4efc | 4869 | peer->holdtime = 0; |
b90a8e13 PM |
4870 | peer->keepalive = 0; |
4871 | } | |
d25e4efc | 4872 | |
b90a8e13 PM |
4873 | /* Skip peer-group mechanics for regular peers. */ |
4874 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
4875 | return 0; | |
4876 | ||
4877 | /* | |
4878 | * Remove flag and configuration from all peer-group members, unless | |
4879 | * they are explicitely overriding peer-group configuration. | |
4880 | */ | |
4881 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4882 | /* Skip peers with overridden configuration. */ | |
4883 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_TIMER)) | |
4884 | continue; | |
d25e4efc | 4885 | |
b90a8e13 PM |
4886 | /* Remove flag and configuration on peer-group member. */ |
4887 | UNSET_FLAG(member->flags, PEER_FLAG_TIMER); | |
4888 | member->holdtime = 0; | |
4889 | member->keepalive = 0; | |
d62a17ae | 4890 | } |
4891 | ||
4892 | return 0; | |
4893 | } | |
4894 | ||
d7c0a89a | 4895 | int peer_timers_connect_set(struct peer *peer, uint32_t connect) |
d62a17ae | 4896 | { |
b90a8e13 | 4897 | struct peer *member; |
d62a17ae | 4898 | struct listnode *node, *nnode; |
4899 | ||
4900 | if (connect > 65535) | |
4901 | return BGP_ERR_INVALID_VALUE; | |
4902 | ||
b90a8e13 PM |
4903 | /* Set flag and configuration on peer. */ |
4904 | peer_flag_set(peer, PEER_FLAG_TIMER_CONNECT); | |
d62a17ae | 4905 | peer->connect = connect; |
d62a17ae | 4906 | peer->v_connect = connect; |
4907 | ||
b90a8e13 | 4908 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 4909 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) |
4910 | return 0; | |
4911 | ||
b90a8e13 PM |
4912 | /* |
4913 | * Set flag and configuration on all peer-group members, unless they are | |
4914 | * explicitely overriding peer-group configuration. | |
4915 | */ | |
4916 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4917 | /* Skip peers with overridden configuration. */ | |
4918 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_TIMER_CONNECT)) | |
4919 | continue; | |
4920 | ||
4921 | /* Set flag and configuration on peer-group member. */ | |
4922 | SET_FLAG(member->flags, PEER_FLAG_TIMER_CONNECT); | |
4923 | member->connect = connect; | |
4924 | member->v_connect = connect; | |
d62a17ae | 4925 | } |
b90a8e13 | 4926 | |
d62a17ae | 4927 | return 0; |
4928 | } | |
4929 | ||
4930 | int peer_timers_connect_unset(struct peer *peer) | |
4931 | { | |
b90a8e13 | 4932 | struct peer *member; |
d62a17ae | 4933 | struct listnode *node, *nnode; |
4934 | ||
b90a8e13 PM |
4935 | /* Inherit configuration from peer-group if peer is member. */ |
4936 | if (peer_group_active(peer)) { | |
4937 | peer_flag_inherit(peer, PEER_FLAG_TIMER_CONNECT); | |
4938 | PEER_ATTR_INHERIT(peer, peer->group, connect); | |
4939 | } else { | |
4940 | /* Otherwise remove flag and configuration from peer. */ | |
4941 | peer_flag_unset(peer, PEER_FLAG_TIMER_CONNECT); | |
4942 | peer->connect = 0; | |
4943 | } | |
d62a17ae | 4944 | |
b90a8e13 PM |
4945 | /* Set timer with fallback to default value. */ |
4946 | if (peer->connect) | |
4947 | peer->v_connect = peer->connect; | |
4948 | else | |
4949 | peer->v_connect = BGP_DEFAULT_CONNECT_RETRY; | |
d62a17ae | 4950 | |
b90a8e13 | 4951 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 4952 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) |
4953 | return 0; | |
4954 | ||
b90a8e13 PM |
4955 | /* |
4956 | * Remove flag and configuration from all peer-group members, unless | |
4957 | * they are explicitely overriding peer-group configuration. | |
4958 | */ | |
4959 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4960 | /* Skip peers with overridden configuration. */ | |
4961 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_TIMER_CONNECT)) | |
4962 | continue; | |
4963 | ||
4964 | /* Remove flag and configuration on peer-group member. */ | |
4965 | UNSET_FLAG(member->flags, PEER_FLAG_TIMER_CONNECT); | |
4966 | member->connect = 0; | |
4967 | member->v_connect = BGP_DEFAULT_CONNECT_RETRY; | |
d62a17ae | 4968 | } |
b90a8e13 | 4969 | |
d62a17ae | 4970 | return 0; |
4971 | } | |
4972 | ||
d7c0a89a | 4973 | int peer_advertise_interval_set(struct peer *peer, uint32_t routeadv) |
d62a17ae | 4974 | { |
b90a8e13 | 4975 | struct peer *member; |
d62a17ae | 4976 | struct listnode *node, *nnode; |
4977 | ||
4978 | if (routeadv > 600) | |
4979 | return BGP_ERR_INVALID_VALUE; | |
4980 | ||
b90a8e13 PM |
4981 | /* Set flag and configuration on peer. */ |
4982 | peer_flag_set(peer, PEER_FLAG_ROUTEADV); | |
d62a17ae | 4983 | peer->routeadv = routeadv; |
4984 | peer->v_routeadv = routeadv; | |
4985 | ||
b90a8e13 | 4986 | /* Check if handling a regular peer. */ |
d62a17ae | 4987 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
b90a8e13 | 4988 | /* Update peer route announcements. */ |
d62a17ae | 4989 | update_group_adjust_peer_afs(peer); |
4990 | if (peer->status == Established) | |
4991 | bgp_announce_route_all(peer); | |
b90a8e13 PM |
4992 | |
4993 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 4994 | return 0; |
4995 | } | |
4996 | ||
b90a8e13 PM |
4997 | /* |
4998 | * Set flag and configuration on all peer-group members, unless they are | |
4999 | * explicitely overriding peer-group configuration. | |
5000 | */ | |
5001 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5002 | /* Skip peers with overridden configuration. */ | |
5003 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_ROUTEADV)) | |
5004 | continue; | |
5005 | ||
5006 | /* Set flag and configuration on peer-group member. */ | |
5007 | SET_FLAG(member->flags, PEER_FLAG_ROUTEADV); | |
5008 | member->routeadv = routeadv; | |
5009 | member->v_routeadv = routeadv; | |
5010 | ||
5011 | /* Update peer route announcements. */ | |
5012 | update_group_adjust_peer_afs(member); | |
5013 | if (member->status == Established) | |
5014 | bgp_announce_route_all(member); | |
d62a17ae | 5015 | } |
5016 | ||
5017 | return 0; | |
5018 | } | |
5019 | ||
5020 | int peer_advertise_interval_unset(struct peer *peer) | |
5021 | { | |
b90a8e13 | 5022 | struct peer *member; |
d62a17ae | 5023 | struct listnode *node, *nnode; |
5024 | ||
b90a8e13 PM |
5025 | /* Inherit configuration from peer-group if peer is member. */ |
5026 | if (peer_group_active(peer)) { | |
5027 | peer_flag_inherit(peer, PEER_FLAG_ROUTEADV); | |
5028 | PEER_ATTR_INHERIT(peer, peer->group, routeadv); | |
5029 | } else { | |
5030 | /* Otherwise remove flag and configuration from peer. */ | |
5031 | peer_flag_unset(peer, PEER_FLAG_ROUTEADV); | |
5032 | peer->routeadv = 0; | |
5033 | } | |
d62a17ae | 5034 | |
b90a8e13 PM |
5035 | /* Set timer with fallback to default value. */ |
5036 | if (peer->routeadv) | |
5037 | peer->v_routeadv = peer->routeadv; | |
d62a17ae | 5038 | else |
b90a8e13 PM |
5039 | peer->v_routeadv = (peer->sort == BGP_PEER_IBGP) |
5040 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
5041 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 5042 | |
b90a8e13 | 5043 | /* Check if handling a regular peer. */ |
d62a17ae | 5044 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
b90a8e13 | 5045 | /* Update peer route announcements. */ |
d62a17ae | 5046 | update_group_adjust_peer_afs(peer); |
5047 | if (peer->status == Established) | |
5048 | bgp_announce_route_all(peer); | |
b90a8e13 PM |
5049 | |
5050 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5051 | return 0; |
5052 | } | |
5053 | ||
b90a8e13 PM |
5054 | /* |
5055 | * Remove flag and configuration from all peer-group members, unless | |
5056 | * they are explicitely overriding peer-group configuration. | |
5057 | */ | |
5058 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5059 | /* Skip peers with overridden configuration. */ | |
5060 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_ROUTEADV)) | |
5061 | continue; | |
d62a17ae | 5062 | |
b90a8e13 PM |
5063 | /* Remove flag and configuration on peer-group member. */ |
5064 | UNSET_FLAG(member->flags, PEER_FLAG_ROUTEADV); | |
5065 | member->routeadv = 0; | |
5066 | member->v_routeadv = (member->sort == BGP_PEER_IBGP) | |
5067 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
5068 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 5069 | |
b90a8e13 PM |
5070 | /* Update peer route announcements. */ |
5071 | update_group_adjust_peer_afs(member); | |
5072 | if (member->status == Established) | |
5073 | bgp_announce_route_all(member); | |
d62a17ae | 5074 | } |
5075 | ||
5076 | return 0; | |
5077 | } | |
5078 | ||
5079 | /* neighbor interface */ | |
5080 | void peer_interface_set(struct peer *peer, const char *str) | |
5081 | { | |
5082 | if (peer->ifname) | |
5083 | XFREE(MTYPE_BGP_PEER_IFNAME, peer->ifname); | |
5084 | peer->ifname = XSTRDUP(MTYPE_BGP_PEER_IFNAME, str); | |
5085 | } | |
5086 | ||
5087 | void peer_interface_unset(struct peer *peer) | |
5088 | { | |
5089 | if (peer->ifname) | |
5090 | XFREE(MTYPE_BGP_PEER_IFNAME, peer->ifname); | |
5091 | peer->ifname = NULL; | |
5092 | } | |
5093 | ||
5094 | /* Allow-as in. */ | |
5095 | int peer_allowas_in_set(struct peer *peer, afi_t afi, safi_t safi, | |
5096 | int allow_num, int origin) | |
5097 | { | |
598ce6bd | 5098 | struct peer *member; |
d62a17ae | 5099 | struct listnode *node, *nnode; |
5100 | ||
598ce6bd PM |
5101 | if (!origin && (allow_num < 1 || allow_num > 10)) |
5102 | return BGP_ERR_INVALID_VALUE; | |
5103 | ||
5104 | /* Set flag and configuration on peer. */ | |
5105 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_ALLOWAS_IN); | |
d62a17ae | 5106 | if (origin) { |
598ce6bd | 5107 | if (peer->allowas_in[afi][safi] != 0 |
d62a17ae | 5108 | || !CHECK_FLAG(peer->af_flags[afi][safi], |
5109 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { | |
d62a17ae | 5110 | peer_af_flag_set(peer, afi, safi, |
5111 | PEER_FLAG_ALLOWAS_IN_ORIGIN); | |
598ce6bd | 5112 | peer->allowas_in[afi][safi] = 0; |
d62a17ae | 5113 | peer_on_policy_change(peer, afi, safi, 0); |
5114 | } | |
d62a17ae | 5115 | } else { |
d62a17ae | 5116 | if (peer->allowas_in[afi][safi] != allow_num |
5117 | || CHECK_FLAG(peer->af_flags[afi][safi], | |
5118 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { | |
598ce6bd | 5119 | |
d62a17ae | 5120 | peer_af_flag_unset(peer, afi, safi, |
5121 | PEER_FLAG_ALLOWAS_IN_ORIGIN); | |
598ce6bd | 5122 | peer->allowas_in[afi][safi] = allow_num; |
d62a17ae | 5123 | peer_on_policy_change(peer, afi, safi, 0); |
5124 | } | |
598ce6bd | 5125 | } |
d62a17ae | 5126 | |
598ce6bd PM |
5127 | /* Skip peer-group mechanics for regular peers. */ |
5128 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
5129 | return 0; | |
d62a17ae | 5130 | |
598ce6bd PM |
5131 | /* |
5132 | * Set flag and configuration on all peer-group members, unless | |
5133 | * they are explicitely overriding peer-group configuration. | |
5134 | */ | |
5135 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5136 | /* Skip peers with overridden configuration. */ | |
5137 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
246bb5f0 | 5138 | PEER_FLAG_ALLOWAS_IN)) |
598ce6bd PM |
5139 | continue; |
5140 | ||
5141 | /* Set flag and configuration on peer-group member. */ | |
5142 | SET_FLAG(member->af_flags[afi][safi], PEER_FLAG_ALLOWAS_IN); | |
5143 | if (origin) { | |
5144 | if (member->allowas_in[afi][safi] != 0 | |
5145 | || !CHECK_FLAG(member->af_flags[afi][safi], | |
cf9ac8bf | 5146 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { |
598ce6bd | 5147 | SET_FLAG(member->af_flags[afi][safi], |
cf9ac8bf | 5148 | PEER_FLAG_ALLOWAS_IN_ORIGIN); |
598ce6bd PM |
5149 | member->allowas_in[afi][safi] = 0; |
5150 | peer_on_policy_change(peer, afi, safi, 0); | |
5151 | } | |
5152 | } else { | |
5153 | if (member->allowas_in[afi][safi] != allow_num | |
5154 | || CHECK_FLAG(member->af_flags[afi][safi], | |
d62a17ae | 5155 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { |
598ce6bd PM |
5156 | UNSET_FLAG(member->af_flags[afi][safi], |
5157 | PEER_FLAG_ALLOWAS_IN_ORIGIN); | |
5158 | member->allowas_in[afi][safi] = allow_num; | |
d62a17ae | 5159 | peer_on_policy_change(peer, afi, safi, 0); |
5160 | } | |
5161 | } | |
5162 | } | |
5163 | ||
5164 | return 0; | |
5165 | } | |
5166 | ||
5167 | int peer_allowas_in_unset(struct peer *peer, afi_t afi, safi_t safi) | |
5168 | { | |
598ce6bd | 5169 | struct peer *member; |
d62a17ae | 5170 | struct listnode *node, *nnode; |
5171 | ||
598ce6bd PM |
5172 | /* Skip peer if flag is already disabled. */ |
5173 | if (!CHECK_FLAG(peer->af_flags[afi][safi], PEER_FLAG_ALLOWAS_IN)) | |
5174 | return 0; | |
d62a17ae | 5175 | |
598ce6bd PM |
5176 | /* Inherit configuration from peer-group if peer is member. */ |
5177 | if (peer_group_active(peer)) { | |
5178 | peer_af_flag_inherit(peer, afi, safi, PEER_FLAG_ALLOWAS_IN); | |
5179 | peer_af_flag_inherit(peer, afi, safi, | |
cf9ac8bf | 5180 | PEER_FLAG_ALLOWAS_IN_ORIGIN); |
e7103a96 | 5181 | PEER_ATTR_INHERIT(peer, peer->group, allowas_in[afi][safi]); |
d62a17ae | 5182 | peer_on_policy_change(peer, afi, safi, 0); |
598ce6bd PM |
5183 | |
5184 | return 0; | |
5185 | } | |
5186 | ||
5187 | /* Remove flag and configuration from peer. */ | |
5188 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_ALLOWAS_IN); | |
5189 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_ALLOWAS_IN_ORIGIN); | |
5190 | peer->allowas_in[afi][safi] = 0; | |
5191 | peer_on_policy_change(peer, afi, safi, 0); | |
5192 | ||
5193 | /* Skip peer-group mechanics if handling a regular peer. */ | |
5194 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
5195 | return 0; | |
5196 | ||
5197 | /* | |
5198 | * Remove flags and configuration from all peer-group members, unless | |
5199 | * they are explicitely overriding peer-group configuration. | |
5200 | */ | |
5201 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5202 | /* Skip peers with overridden configuration. */ | |
5203 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
cf9ac8bf | 5204 | PEER_FLAG_ALLOWAS_IN)) |
598ce6bd PM |
5205 | continue; |
5206 | ||
5207 | /* Skip peers where flag is already disabled. */ | |
5208 | if (!CHECK_FLAG(member->af_flags[afi][safi], | |
cf9ac8bf | 5209 | PEER_FLAG_ALLOWAS_IN)) |
598ce6bd PM |
5210 | continue; |
5211 | ||
5212 | /* Remove flags and configuration on peer-group member. */ | |
cf9ac8bf | 5213 | UNSET_FLAG(member->af_flags[afi][safi], PEER_FLAG_ALLOWAS_IN); |
598ce6bd | 5214 | UNSET_FLAG(member->af_flags[afi][safi], |
cf9ac8bf | 5215 | PEER_FLAG_ALLOWAS_IN_ORIGIN); |
598ce6bd PM |
5216 | member->allowas_in[afi][safi] = 0; |
5217 | peer_on_policy_change(member, afi, safi, 0); | |
d62a17ae | 5218 | } |
5219 | ||
5220 | return 0; | |
5221 | } | |
5222 | ||
5223 | int peer_local_as_set(struct peer *peer, as_t as, int no_prepend, | |
5224 | int replace_as) | |
5225 | { | |
a14810f4 | 5226 | bool old_no_prepend, old_replace_as; |
d62a17ae | 5227 | struct bgp *bgp = peer->bgp; |
a14810f4 | 5228 | struct peer *member; |
d62a17ae | 5229 | struct listnode *node, *nnode; |
5230 | ||
5231 | if (peer_sort(peer) != BGP_PEER_EBGP | |
5232 | && peer_sort(peer) != BGP_PEER_INTERNAL) | |
5233 | return BGP_ERR_LOCAL_AS_ALLOWED_ONLY_FOR_EBGP; | |
5234 | ||
5235 | if (bgp->as == as) | |
5236 | return BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS; | |
5237 | ||
5238 | if (peer->as == as) | |
5239 | return BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS_REMOTE_AS; | |
5240 | ||
a14810f4 PM |
5241 | /* Save previous flag states. */ |
5242 | old_no_prepend = | |
5243 | !!CHECK_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5244 | old_replace_as = | |
5245 | !!CHECK_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
d62a17ae | 5246 | |
a14810f4 PM |
5247 | /* Set flag and configuration on peer. */ |
5248 | peer_flag_set(peer, PEER_FLAG_LOCAL_AS); | |
5249 | peer_flag_modify(peer, PEER_FLAG_LOCAL_AS_NO_PREPEND, no_prepend); | |
5250 | peer_flag_modify(peer, PEER_FLAG_LOCAL_AS_REPLACE_AS, replace_as); | |
d62a17ae | 5251 | |
a14810f4 PM |
5252 | if (peer->change_local_as == as && old_no_prepend == no_prepend |
5253 | && old_replace_as == replace_as) | |
5254 | return 0; | |
5255 | peer->change_local_as = as; | |
d62a17ae | 5256 | |
a14810f4 | 5257 | /* Check if handling a regular peer. */ |
d62a17ae | 5258 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 5259 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 5260 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
5261 | peer->last_reset = PEER_DOWN_LOCAL_AS_CHANGE; | |
5262 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5263 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5264 | } else | |
5265 | bgp_session_reset(peer); | |
a14810f4 PM |
5266 | |
5267 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5268 | return 0; |
5269 | } | |
5270 | ||
a14810f4 PM |
5271 | /* |
5272 | * Set flag and configuration on all peer-group members, unless they are | |
5273 | * explicitely overriding peer-group configuration. | |
5274 | */ | |
5275 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5276 | /* Skip peers with overridden configuration. */ | |
5277 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_LOCAL_AS)) | |
5278 | continue; | |
d62a17ae | 5279 | |
a14810f4 PM |
5280 | /* Skip peers with the same configuration. */ |
5281 | old_no_prepend = CHECK_FLAG(member->flags, | |
5282 | PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5283 | old_replace_as = CHECK_FLAG(member->flags, | |
5284 | PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
5285 | if (member->change_local_as == as | |
5286 | && CHECK_FLAG(member->flags, PEER_FLAG_LOCAL_AS) | |
5287 | && old_no_prepend == no_prepend | |
5288 | && old_replace_as == replace_as) | |
5289 | continue; | |
d62a17ae | 5290 | |
a14810f4 PM |
5291 | /* Set flag and configuration on peer-group member. */ |
5292 | SET_FLAG(member->flags, PEER_FLAG_LOCAL_AS); | |
5293 | COND_FLAG(member->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND, | |
5294 | no_prepend); | |
5295 | COND_FLAG(member->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS, | |
5296 | replace_as); | |
5297 | member->change_local_as = as; | |
5298 | ||
5299 | /* Send notification or stop peer depending on state. */ | |
5300 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) { | |
5301 | member->last_reset = PEER_DOWN_LOCAL_AS_CHANGE; | |
5302 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 5303 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
5304 | } else | |
a14810f4 | 5305 | BGP_EVENT_ADD(member, BGP_Stop); |
d62a17ae | 5306 | } |
5307 | ||
5308 | return 0; | |
5309 | } | |
5310 | ||
5311 | int peer_local_as_unset(struct peer *peer) | |
5312 | { | |
a14810f4 | 5313 | struct peer *member; |
d62a17ae | 5314 | struct listnode *node, *nnode; |
5315 | ||
a14810f4 | 5316 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_LOCAL_AS)) |
d62a17ae | 5317 | return 0; |
5318 | ||
a14810f4 PM |
5319 | /* Inherit configuration from peer-group if peer is member. */ |
5320 | if (peer_group_active(peer)) { | |
5321 | peer_flag_inherit(peer, PEER_FLAG_LOCAL_AS); | |
5322 | peer_flag_inherit(peer, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5323 | peer_flag_inherit(peer, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
5324 | PEER_ATTR_INHERIT(peer, peer->group, change_local_as); | |
5325 | } else { | |
5326 | /* Otherwise remove flag and configuration from peer. */ | |
5327 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS); | |
5328 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5329 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
5330 | peer->change_local_as = 0; | |
5331 | } | |
d62a17ae | 5332 | |
a14810f4 | 5333 | /* Check if handling a regular peer. */ |
d62a17ae | 5334 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 5335 | /* Send notification or stop peer depending on state. */ |
d62a17ae | 5336 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
5337 | peer->last_reset = PEER_DOWN_LOCAL_AS_CHANGE; | |
5338 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5339 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5340 | } else | |
5341 | BGP_EVENT_ADD(peer, BGP_Stop); | |
5342 | ||
a14810f4 | 5343 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 5344 | return 0; |
5345 | } | |
5346 | ||
a14810f4 PM |
5347 | /* |
5348 | * Remove flag and configuration from all peer-group members, unless | |
5349 | * they are explicitely overriding peer-group configuration. | |
5350 | */ | |
5351 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5352 | /* Skip peers with overridden configuration. */ | |
5353 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_LOCAL_AS)) | |
5354 | continue; | |
d62a17ae | 5355 | |
a14810f4 PM |
5356 | /* Remove flag and configuration on peer-group member. */ |
5357 | UNSET_FLAG(member->flags, PEER_FLAG_LOCAL_AS); | |
5358 | UNSET_FLAG(member->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5359 | UNSET_FLAG(member->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
5360 | member->change_local_as = 0; | |
5361 | ||
5362 | /* Send notification or stop peer depending on state. */ | |
5363 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) { | |
5364 | member->last_reset = PEER_DOWN_LOCAL_AS_CHANGE; | |
5365 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 5366 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
5367 | } else | |
a14810f4 | 5368 | bgp_session_reset(member); |
d62a17ae | 5369 | } |
a14810f4 | 5370 | |
d62a17ae | 5371 | return 0; |
5372 | } | |
5373 | ||
5374 | /* Set password for authenticating with the peer. */ | |
5375 | int peer_password_set(struct peer *peer, const char *password) | |
5376 | { | |
a14810f4 PM |
5377 | struct peer *member; |
5378 | struct listnode *node, *nnode; | |
d62a17ae | 5379 | int len = password ? strlen(password) : 0; |
5380 | int ret = BGP_SUCCESS; | |
5381 | ||
5382 | if ((len < PEER_PASSWORD_MINLEN) || (len > PEER_PASSWORD_MAXLEN)) | |
5383 | return BGP_ERR_INVALID_VALUE; | |
5384 | ||
a14810f4 PM |
5385 | /* Set flag and configuration on peer. */ |
5386 | peer_flag_set(peer, PEER_FLAG_PASSWORD); | |
5387 | if (peer->password && strcmp(peer->password, password) == 0) | |
d62a17ae | 5388 | return 0; |
a14810f4 | 5389 | XFREE(MTYPE_PEER_PASSWORD, peer->password); |
d62a17ae | 5390 | peer->password = XSTRDUP(MTYPE_PEER_PASSWORD, password); |
5391 | ||
a14810f4 | 5392 | /* Check if handling a regular peer. */ |
d62a17ae | 5393 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 5394 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 5395 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
5396 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5397 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5398 | else | |
5399 | bgp_session_reset(peer); | |
5400 | ||
a14810f4 PM |
5401 | /* |
5402 | * Attempt to install password on socket and skip peer-group | |
5403 | * mechanics. | |
5404 | */ | |
d62a17ae | 5405 | if (BGP_PEER_SU_UNSPEC(peer)) |
5406 | return BGP_SUCCESS; | |
d62a17ae | 5407 | return (bgp_md5_set(peer) >= 0) ? BGP_SUCCESS |
5408 | : BGP_ERR_TCPSIG_FAILED; | |
5409 | } | |
5410 | ||
a14810f4 PM |
5411 | /* |
5412 | * Set flag and configuration on all peer-group members, unless they are | |
5413 | * explicitely overriding peer-group configuration. | |
5414 | */ | |
5415 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5416 | /* Skip peers with overridden configuration. */ | |
5417 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_PASSWORD)) | |
d62a17ae | 5418 | continue; |
5419 | ||
a14810f4 PM |
5420 | /* Skip peers with the same password. */ |
5421 | if (member->password && strcmp(member->password, password) == 0) | |
5422 | continue; | |
d62a17ae | 5423 | |
a14810f4 PM |
5424 | /* Set flag and configuration on peer-group member. */ |
5425 | SET_FLAG(member->flags, PEER_FLAG_PASSWORD); | |
5426 | if (member->password) | |
5427 | XFREE(MTYPE_PEER_PASSWORD, member->password); | |
5428 | member->password = XSTRDUP(MTYPE_PEER_PASSWORD, password); | |
5429 | ||
5430 | /* Send notification or reset peer depending on state. */ | |
5431 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) | |
5432 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 5433 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
5434 | else | |
a14810f4 | 5435 | bgp_session_reset(member); |
d62a17ae | 5436 | |
a14810f4 PM |
5437 | /* Attempt to install password on socket. */ |
5438 | if (!BGP_PEER_SU_UNSPEC(member) && bgp_md5_set(member) < 0) | |
5439 | ret = BGP_ERR_TCPSIG_FAILED; | |
d62a17ae | 5440 | } |
5441 | ||
5442 | return ret; | |
5443 | } | |
5444 | ||
5445 | int peer_password_unset(struct peer *peer) | |
5446 | { | |
a14810f4 PM |
5447 | struct peer *member; |
5448 | struct listnode *node, *nnode; | |
d62a17ae | 5449 | |
a14810f4 | 5450 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_PASSWORD)) |
d62a17ae | 5451 | return 0; |
5452 | ||
a14810f4 PM |
5453 | /* Inherit configuration from peer-group if peer is member. */ |
5454 | if (peer_group_active(peer)) { | |
5455 | peer_flag_inherit(peer, PEER_FLAG_PASSWORD); | |
5456 | PEER_STR_ATTR_INHERIT(peer, peer->group, password, | |
5457 | MTYPE_PEER_PASSWORD); | |
5458 | } else { | |
5459 | /* Otherwise remove flag and configuration from peer. */ | |
5460 | peer_flag_unset(peer, PEER_FLAG_PASSWORD); | |
5461 | XFREE(MTYPE_PEER_PASSWORD, peer->password); | |
5462 | } | |
5463 | ||
5464 | /* Check if handling a regular peer. */ | |
d62a17ae | 5465 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 5466 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 5467 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
5468 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5469 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5470 | else | |
5471 | bgp_session_reset(peer); | |
5472 | ||
a14810f4 | 5473 | /* Attempt to uninstall password on socket. */ |
d62a17ae | 5474 | if (!BGP_PEER_SU_UNSPEC(peer)) |
5475 | bgp_md5_unset(peer); | |
5476 | ||
a14810f4 | 5477 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 5478 | return 0; |
5479 | } | |
5480 | ||
a14810f4 PM |
5481 | /* |
5482 | * Remove flag and configuration from all peer-group members, unless | |
5483 | * they are explicitely overriding peer-group configuration. | |
5484 | */ | |
5485 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5486 | /* Skip peers with overridden configuration. */ | |
5487 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_PASSWORD)) | |
d62a17ae | 5488 | continue; |
5489 | ||
a14810f4 PM |
5490 | /* Remove flag and configuration on peer-group member. */ |
5491 | UNSET_FLAG(member->flags, PEER_FLAG_PASSWORD); | |
5492 | XFREE(MTYPE_PEER_PASSWORD, member->password); | |
5493 | ||
5494 | /* Send notification or reset peer depending on state. */ | |
5495 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) | |
5496 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 5497 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
5498 | else | |
a14810f4 | 5499 | bgp_session_reset(member); |
d62a17ae | 5500 | |
a14810f4 PM |
5501 | /* Attempt to uninstall password on socket. */ |
5502 | if (!BGP_PEER_SU_UNSPEC(member)) | |
5503 | bgp_md5_unset(member); | |
d62a17ae | 5504 | } |
5505 | ||
5506 | return 0; | |
5507 | } | |
6b0655a2 | 5508 | |
3f9c7369 | 5509 | |
718e3744 | 5510 | /* Set distribute list to the peer. */ |
d62a17ae | 5511 | int peer_distribute_set(struct peer *peer, afi_t afi, safi_t safi, int direct, |
5512 | const char *name) | |
5513 | { | |
70ee29b4 | 5514 | struct peer *member; |
d62a17ae | 5515 | struct bgp_filter *filter; |
d62a17ae | 5516 | struct listnode *node, *nnode; |
5517 | ||
5518 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5519 | return BGP_ERR_INVALID_VALUE; | |
5520 | ||
70ee29b4 | 5521 | /* Set configuration on peer. */ |
d62a17ae | 5522 | filter = &peer->filter[afi][safi]; |
d62a17ae | 5523 | if (filter->plist[direct].name) |
5524 | return BGP_ERR_PEER_FILTER_CONFLICT; | |
d62a17ae | 5525 | if (filter->dlist[direct].name) |
5526 | XFREE(MTYPE_BGP_FILTER_NAME, filter->dlist[direct].name); | |
5527 | filter->dlist[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5528 | filter->dlist[direct].alist = access_list_lookup(afi, name); | |
5529 | ||
70ee29b4 | 5530 | /* Check if handling a regular peer. */ |
d62a17ae | 5531 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
5532 | /* Set override-flag and process peer route updates. */ |
5533 | SET_FLAG(peer->filter_override[afi][safi][direct], | |
5534 | PEER_FT_DISTRIBUTE_LIST); | |
d62a17ae | 5535 | peer_on_policy_change(peer, afi, safi, |
5536 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
5537 | |
5538 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5539 | return 0; |
5540 | } | |
5541 | ||
70ee29b4 PM |
5542 | /* |
5543 | * Set configuration on all peer-group members, un less they are | |
5544 | * explicitely overriding peer-group configuration. | |
5545 | */ | |
5546 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5547 | /* Skip peers with overridden configuration. */ | |
5548 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
5549 | PEER_FT_DISTRIBUTE_LIST)) | |
5550 | continue; | |
d62a17ae | 5551 | |
70ee29b4 PM |
5552 | /* Set configuration on peer-group member. */ |
5553 | filter = &member->filter[afi][safi]; | |
d62a17ae | 5554 | if (filter->dlist[direct].name) |
5555 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5556 | filter->dlist[direct].name); | |
5557 | filter->dlist[direct].name = | |
5558 | XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5559 | filter->dlist[direct].alist = access_list_lookup(afi, name); | |
70ee29b4 PM |
5560 | |
5561 | /* Process peer route updates. */ | |
5562 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 5563 | (direct == FILTER_OUT) ? 1 : 0); |
5564 | } | |
5565 | ||
5566 | return 0; | |
5567 | } | |
5568 | ||
5569 | int peer_distribute_unset(struct peer *peer, afi_t afi, safi_t safi, int direct) | |
5570 | { | |
70ee29b4 | 5571 | struct peer *member; |
d62a17ae | 5572 | struct bgp_filter *filter; |
d62a17ae | 5573 | struct listnode *node, *nnode; |
5574 | ||
5575 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5576 | return BGP_ERR_INVALID_VALUE; | |
5577 | ||
70ee29b4 PM |
5578 | /* Unset override-flag unconditionally. */ |
5579 | UNSET_FLAG(peer->filter_override[afi][safi][direct], | |
5580 | PEER_FT_DISTRIBUTE_LIST); | |
d62a17ae | 5581 | |
70ee29b4 | 5582 | /* Inherit configuration from peer-group if peer is member. */ |
d62a17ae | 5583 | if (peer_group_active(peer)) { |
e7103a96 PM |
5584 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
5585 | filter[afi][safi].dlist[direct].name, | |
5586 | MTYPE_BGP_FILTER_NAME); | |
5587 | PEER_ATTR_INHERIT(peer, peer->group, | |
5588 | filter[afi][safi].dlist[direct].alist); | |
70ee29b4 PM |
5589 | } else { |
5590 | /* Otherwise remove configuration from peer. */ | |
5591 | filter = &peer->filter[afi][safi]; | |
5592 | if (filter->dlist[direct].name) | |
5593 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5594 | filter->dlist[direct].name); | |
5595 | filter->dlist[direct].name = NULL; | |
5596 | filter->dlist[direct].alist = NULL; | |
d62a17ae | 5597 | } |
5598 | ||
70ee29b4 | 5599 | /* Check if handling a regular peer. */ |
d62a17ae | 5600 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 5601 | /* Process peer route updates. */ |
d62a17ae | 5602 | peer_on_policy_change(peer, afi, safi, |
5603 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
5604 | |
5605 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5606 | return 0; |
5607 | } | |
5608 | ||
70ee29b4 PM |
5609 | /* |
5610 | * Remove configuration on all peer-group members, unless they are | |
5611 | * explicitely overriding peer-group configuration. | |
5612 | */ | |
5613 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5614 | /* Skip peers with overridden configuration. */ | |
5615 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
5616 | PEER_FT_DISTRIBUTE_LIST)) | |
5617 | continue; | |
d62a17ae | 5618 | |
70ee29b4 PM |
5619 | /* Remove configuration on peer-group member. */ |
5620 | filter = &member->filter[afi][safi]; | |
d62a17ae | 5621 | if (filter->dlist[direct].name) |
5622 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5623 | filter->dlist[direct].name); | |
5624 | filter->dlist[direct].name = NULL; | |
5625 | filter->dlist[direct].alist = NULL; | |
70ee29b4 PM |
5626 | |
5627 | /* Process peer route updates. */ | |
5628 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 5629 | (direct == FILTER_OUT) ? 1 : 0); |
5630 | } | |
5631 | ||
5632 | return 0; | |
5633 | } | |
5634 | ||
5635 | /* Update distribute list. */ | |
5636 | static void peer_distribute_update(struct access_list *access) | |
5637 | { | |
5638 | afi_t afi; | |
5639 | safi_t safi; | |
5640 | int direct; | |
5641 | struct listnode *mnode, *mnnode; | |
5642 | struct listnode *node, *nnode; | |
5643 | struct bgp *bgp; | |
5644 | struct peer *peer; | |
5645 | struct peer_group *group; | |
5646 | struct bgp_filter *filter; | |
5647 | ||
5648 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
5649 | if (access->name) | |
5650 | update_group_policy_update(bgp, BGP_POLICY_FILTER_LIST, | |
5651 | access->name, 0, 0); | |
5652 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
05c7a1cc QY |
5653 | FOREACH_AFI_SAFI (afi, safi) { |
5654 | filter = &peer->filter[afi][safi]; | |
5655 | ||
5656 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
5657 | direct++) { | |
5658 | if (filter->dlist[direct].name) | |
5659 | filter->dlist[direct] | |
5660 | .alist = access_list_lookup( | |
5661 | afi, | |
d62a17ae | 5662 | filter->dlist[direct] |
05c7a1cc QY |
5663 | .name); |
5664 | else | |
5665 | filter->dlist[direct].alist = | |
5666 | NULL; | |
d62a17ae | 5667 | } |
05c7a1cc | 5668 | } |
d62a17ae | 5669 | } |
5670 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
05c7a1cc QY |
5671 | FOREACH_AFI_SAFI (afi, safi) { |
5672 | filter = &group->conf->filter[afi][safi]; | |
5673 | ||
5674 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
5675 | direct++) { | |
5676 | if (filter->dlist[direct].name) | |
5677 | filter->dlist[direct] | |
5678 | .alist = access_list_lookup( | |
5679 | afi, | |
d62a17ae | 5680 | filter->dlist[direct] |
05c7a1cc QY |
5681 | .name); |
5682 | else | |
5683 | filter->dlist[direct].alist = | |
5684 | NULL; | |
d62a17ae | 5685 | } |
05c7a1cc | 5686 | } |
d62a17ae | 5687 | } |
5688 | #if ENABLE_BGP_VNC | |
5689 | vnc_prefix_list_update(bgp); | |
5690 | #endif | |
5691 | } | |
5692 | } | |
5693 | ||
5694 | /* Set prefix list to the peer. */ | |
5695 | int peer_prefix_list_set(struct peer *peer, afi_t afi, safi_t safi, int direct, | |
5696 | const char *name) | |
5697 | { | |
70ee29b4 | 5698 | struct peer *member; |
d62a17ae | 5699 | struct bgp_filter *filter; |
d62a17ae | 5700 | struct listnode *node, *nnode; |
5701 | ||
5702 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5703 | return BGP_ERR_INVALID_VALUE; | |
5704 | ||
70ee29b4 | 5705 | /* Set configuration on peer. */ |
d62a17ae | 5706 | filter = &peer->filter[afi][safi]; |
d62a17ae | 5707 | if (filter->dlist[direct].name) |
5708 | return BGP_ERR_PEER_FILTER_CONFLICT; | |
d62a17ae | 5709 | if (filter->plist[direct].name) |
5710 | XFREE(MTYPE_BGP_FILTER_NAME, filter->plist[direct].name); | |
5711 | filter->plist[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5712 | filter->plist[direct].plist = prefix_list_lookup(afi, name); | |
5713 | ||
70ee29b4 | 5714 | /* Check if handling a regular peer. */ |
d62a17ae | 5715 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
5716 | /* Set override-flag and process peer route updates. */ |
5717 | SET_FLAG(peer->filter_override[afi][safi][direct], | |
5718 | PEER_FT_PREFIX_LIST); | |
d62a17ae | 5719 | peer_on_policy_change(peer, afi, safi, |
5720 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
5721 | |
5722 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5723 | return 0; |
5724 | } | |
5725 | ||
70ee29b4 PM |
5726 | /* |
5727 | * Set configuration on all peer-group members, unless they are | |
5728 | * explicitely overriding peer-group configuration. | |
5729 | */ | |
5730 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5731 | /* Skip peers with overridden configuration. */ | |
5732 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
5733 | PEER_FT_PREFIX_LIST)) | |
5734 | continue; | |
d62a17ae | 5735 | |
70ee29b4 PM |
5736 | /* Set configuration on peer-group member. */ |
5737 | filter = &member->filter[afi][safi]; | |
d62a17ae | 5738 | if (filter->plist[direct].name) |
5739 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5740 | filter->plist[direct].name); | |
5741 | filter->plist[direct].name = | |
5742 | XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5743 | filter->plist[direct].plist = prefix_list_lookup(afi, name); | |
70ee29b4 PM |
5744 | |
5745 | /* Process peer route updates. */ | |
5746 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 5747 | (direct == FILTER_OUT) ? 1 : 0); |
5748 | } | |
70ee29b4 | 5749 | |
d62a17ae | 5750 | return 0; |
5751 | } | |
5752 | ||
5753 | int peer_prefix_list_unset(struct peer *peer, afi_t afi, safi_t safi, | |
5754 | int direct) | |
5755 | { | |
70ee29b4 | 5756 | struct peer *member; |
d62a17ae | 5757 | struct bgp_filter *filter; |
d62a17ae | 5758 | struct listnode *node, *nnode; |
5759 | ||
5760 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5761 | return BGP_ERR_INVALID_VALUE; | |
5762 | ||
70ee29b4 PM |
5763 | /* Unset override-flag unconditionally. */ |
5764 | UNSET_FLAG(peer->filter_override[afi][safi][direct], | |
5765 | PEER_FT_PREFIX_LIST); | |
d62a17ae | 5766 | |
70ee29b4 | 5767 | /* Inherit configuration from peer-group if peer is member. */ |
d62a17ae | 5768 | if (peer_group_active(peer)) { |
e7103a96 PM |
5769 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
5770 | filter[afi][safi].plist[direct].name, | |
5771 | MTYPE_BGP_FILTER_NAME); | |
5772 | PEER_ATTR_INHERIT(peer, peer->group, | |
5773 | filter[afi][safi].plist[direct].plist); | |
70ee29b4 PM |
5774 | } else { |
5775 | /* Otherwise remove configuration from peer. */ | |
5776 | filter = &peer->filter[afi][safi]; | |
5777 | if (filter->plist[direct].name) | |
5778 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5779 | filter->plist[direct].name); | |
5780 | filter->plist[direct].name = NULL; | |
5781 | filter->plist[direct].plist = NULL; | |
d62a17ae | 5782 | } |
5783 | ||
70ee29b4 | 5784 | /* Check if handling a regular peer. */ |
d62a17ae | 5785 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 5786 | /* Process peer route updates. */ |
d62a17ae | 5787 | peer_on_policy_change(peer, afi, safi, |
5788 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
5789 | |
5790 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5791 | return 0; |
5792 | } | |
5793 | ||
70ee29b4 PM |
5794 | /* |
5795 | * Remove configuration on all peer-group members, unless they are | |
5796 | * explicitely overriding peer-group configuration. | |
5797 | */ | |
5798 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5799 | /* Skip peers with overridden configuration. */ | |
5800 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
5801 | PEER_FT_PREFIX_LIST)) | |
5802 | continue; | |
d62a17ae | 5803 | |
70ee29b4 PM |
5804 | /* Remove configuration on peer-group member. */ |
5805 | filter = &member->filter[afi][safi]; | |
d62a17ae | 5806 | if (filter->plist[direct].name) |
5807 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5808 | filter->plist[direct].name); | |
5809 | filter->plist[direct].name = NULL; | |
5810 | filter->plist[direct].plist = NULL; | |
70ee29b4 PM |
5811 | |
5812 | /* Process peer route updates. */ | |
5813 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 5814 | (direct == FILTER_OUT) ? 1 : 0); |
5815 | } | |
5816 | ||
5817 | return 0; | |
5818 | } | |
5819 | ||
5820 | /* Update prefix-list list. */ | |
5821 | static void peer_prefix_list_update(struct prefix_list *plist) | |
5822 | { | |
5823 | struct listnode *mnode, *mnnode; | |
5824 | struct listnode *node, *nnode; | |
5825 | struct bgp *bgp; | |
5826 | struct peer *peer; | |
5827 | struct peer_group *group; | |
5828 | struct bgp_filter *filter; | |
5829 | afi_t afi; | |
5830 | safi_t safi; | |
5831 | int direct; | |
5832 | ||
5833 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
5834 | ||
5835 | /* | |
5836 | * Update the prefix-list on update groups. | |
5837 | */ | |
5838 | update_group_policy_update( | |
5839 | bgp, BGP_POLICY_PREFIX_LIST, | |
5840 | plist ? prefix_list_name(plist) : NULL, 0, 0); | |
5841 | ||
5842 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
05c7a1cc QY |
5843 | FOREACH_AFI_SAFI (afi, safi) { |
5844 | filter = &peer->filter[afi][safi]; | |
5845 | ||
5846 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
5847 | direct++) { | |
5848 | if (filter->plist[direct].name) | |
5849 | filter->plist[direct] | |
5850 | .plist = prefix_list_lookup( | |
5851 | afi, | |
d62a17ae | 5852 | filter->plist[direct] |
05c7a1cc QY |
5853 | .name); |
5854 | else | |
5855 | filter->plist[direct].plist = | |
5856 | NULL; | |
d62a17ae | 5857 | } |
05c7a1cc | 5858 | } |
d62a17ae | 5859 | } |
5860 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
05c7a1cc QY |
5861 | FOREACH_AFI_SAFI (afi, safi) { |
5862 | filter = &group->conf->filter[afi][safi]; | |
5863 | ||
5864 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
5865 | direct++) { | |
5866 | if (filter->plist[direct].name) | |
5867 | filter->plist[direct] | |
5868 | .plist = prefix_list_lookup( | |
5869 | afi, | |
d62a17ae | 5870 | filter->plist[direct] |
05c7a1cc QY |
5871 | .name); |
5872 | else | |
5873 | filter->plist[direct].plist = | |
5874 | NULL; | |
d62a17ae | 5875 | } |
05c7a1cc | 5876 | } |
d62a17ae | 5877 | } |
5878 | } | |
5879 | } | |
5880 | ||
5881 | int peer_aslist_set(struct peer *peer, afi_t afi, safi_t safi, int direct, | |
5882 | const char *name) | |
5883 | { | |
70ee29b4 | 5884 | struct peer *member; |
d62a17ae | 5885 | struct bgp_filter *filter; |
d62a17ae | 5886 | struct listnode *node, *nnode; |
5887 | ||
5888 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5889 | return BGP_ERR_INVALID_VALUE; | |
5890 | ||
70ee29b4 | 5891 | /* Set configuration on peer. */ |
d62a17ae | 5892 | filter = &peer->filter[afi][safi]; |
d62a17ae | 5893 | if (filter->aslist[direct].name) |
5894 | XFREE(MTYPE_BGP_FILTER_NAME, filter->aslist[direct].name); | |
5895 | filter->aslist[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5896 | filter->aslist[direct].aslist = as_list_lookup(name); | |
5897 | ||
70ee29b4 | 5898 | /* Check if handling a regular peer. */ |
d62a17ae | 5899 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
5900 | /* Set override-flag and process peer route updates. */ |
5901 | SET_FLAG(peer->filter_override[afi][safi][direct], | |
5902 | PEER_FT_FILTER_LIST); | |
d62a17ae | 5903 | peer_on_policy_change(peer, afi, safi, |
5904 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
5905 | |
5906 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5907 | return 0; |
5908 | } | |
5909 | ||
70ee29b4 PM |
5910 | /* |
5911 | * Set configuration on all peer-group members, unless they are | |
5912 | * explicitely overriding peer-group configuration. | |
5913 | */ | |
5914 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5915 | /* Skip peers with overridden configuration. */ | |
5916 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
5917 | PEER_FT_FILTER_LIST)) | |
5918 | continue; | |
d62a17ae | 5919 | |
70ee29b4 PM |
5920 | /* Set configuration on peer-group member. */ |
5921 | filter = &member->filter[afi][safi]; | |
d62a17ae | 5922 | if (filter->aslist[direct].name) |
5923 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5924 | filter->aslist[direct].name); | |
5925 | filter->aslist[direct].name = | |
5926 | XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5927 | filter->aslist[direct].aslist = as_list_lookup(name); | |
70ee29b4 PM |
5928 | |
5929 | /* Process peer route updates. */ | |
5930 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 5931 | (direct == FILTER_OUT) ? 1 : 0); |
5932 | } | |
70ee29b4 | 5933 | |
d62a17ae | 5934 | return 0; |
5935 | } | |
5936 | ||
5937 | int peer_aslist_unset(struct peer *peer, afi_t afi, safi_t safi, int direct) | |
5938 | { | |
70ee29b4 | 5939 | struct peer *member; |
d62a17ae | 5940 | struct bgp_filter *filter; |
d62a17ae | 5941 | struct listnode *node, *nnode; |
5942 | ||
5943 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5944 | return BGP_ERR_INVALID_VALUE; | |
5945 | ||
70ee29b4 PM |
5946 | /* Unset override-flag unconditionally. */ |
5947 | UNSET_FLAG(peer->filter_override[afi][safi][direct], | |
5948 | PEER_FT_FILTER_LIST); | |
d62a17ae | 5949 | |
70ee29b4 | 5950 | /* Inherit configuration from peer-group if peer is member. */ |
d62a17ae | 5951 | if (peer_group_active(peer)) { |
e7103a96 PM |
5952 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
5953 | filter[afi][safi].aslist[direct].name, | |
5954 | MTYPE_BGP_FILTER_NAME); | |
5955 | PEER_ATTR_INHERIT(peer, peer->group, | |
70ee29b4 PM |
5956 | filter[afi][safi].aslist[direct].aslist); |
5957 | } else { | |
5958 | /* Otherwise remove configuration from peer. */ | |
5959 | filter = &peer->filter[afi][safi]; | |
5960 | if (filter->aslist[direct].name) | |
5961 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5962 | filter->aslist[direct].name); | |
5963 | filter->aslist[direct].name = NULL; | |
5964 | filter->aslist[direct].aslist = NULL; | |
d62a17ae | 5965 | } |
5966 | ||
70ee29b4 | 5967 | /* Check if handling a regular peer. */ |
d62a17ae | 5968 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 5969 | /* Process peer route updates. */ |
d62a17ae | 5970 | peer_on_policy_change(peer, afi, safi, |
5971 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
5972 | |
5973 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5974 | return 0; |
5975 | } | |
5976 | ||
70ee29b4 PM |
5977 | /* |
5978 | * Remove configuration on all peer-group members, unless they are | |
5979 | * explicitely overriding peer-group configuration. | |
5980 | */ | |
5981 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5982 | /* Skip peers with overridden configuration. */ | |
5983 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
5984 | PEER_FT_FILTER_LIST)) | |
5985 | continue; | |
d62a17ae | 5986 | |
70ee29b4 PM |
5987 | /* Remove configuration on peer-group member. */ |
5988 | filter = &member->filter[afi][safi]; | |
d62a17ae | 5989 | if (filter->aslist[direct].name) |
5990 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5991 | filter->aslist[direct].name); | |
5992 | filter->aslist[direct].name = NULL; | |
5993 | filter->aslist[direct].aslist = NULL; | |
70ee29b4 PM |
5994 | |
5995 | /* Process peer route updates. */ | |
5996 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 5997 | (direct == FILTER_OUT) ? 1 : 0); |
5998 | } | |
5999 | ||
6000 | return 0; | |
6001 | } | |
6002 | ||
6003 | static void peer_aslist_update(const char *aslist_name) | |
6004 | { | |
6005 | afi_t afi; | |
6006 | safi_t safi; | |
6007 | int direct; | |
6008 | struct listnode *mnode, *mnnode; | |
6009 | struct listnode *node, *nnode; | |
6010 | struct bgp *bgp; | |
6011 | struct peer *peer; | |
6012 | struct peer_group *group; | |
6013 | struct bgp_filter *filter; | |
6014 | ||
6015 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
6016 | update_group_policy_update(bgp, BGP_POLICY_FILTER_LIST, | |
6017 | aslist_name, 0, 0); | |
6018 | ||
6019 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
05c7a1cc QY |
6020 | FOREACH_AFI_SAFI (afi, safi) { |
6021 | filter = &peer->filter[afi][safi]; | |
6022 | ||
6023 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
6024 | direct++) { | |
6025 | if (filter->aslist[direct].name) | |
6026 | filter->aslist[direct] | |
6027 | .aslist = as_list_lookup( | |
d62a17ae | 6028 | filter->aslist[direct] |
05c7a1cc QY |
6029 | .name); |
6030 | else | |
6031 | filter->aslist[direct].aslist = | |
6032 | NULL; | |
d62a17ae | 6033 | } |
05c7a1cc | 6034 | } |
d62a17ae | 6035 | } |
6036 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
05c7a1cc QY |
6037 | FOREACH_AFI_SAFI (afi, safi) { |
6038 | filter = &group->conf->filter[afi][safi]; | |
6039 | ||
6040 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
6041 | direct++) { | |
6042 | if (filter->aslist[direct].name) | |
6043 | filter->aslist[direct] | |
6044 | .aslist = as_list_lookup( | |
d62a17ae | 6045 | filter->aslist[direct] |
05c7a1cc QY |
6046 | .name); |
6047 | else | |
6048 | filter->aslist[direct].aslist = | |
6049 | NULL; | |
d62a17ae | 6050 | } |
05c7a1cc | 6051 | } |
d62a17ae | 6052 | } |
6053 | } | |
6054 | } | |
6055 | ||
6056 | static void peer_aslist_add(char *aslist_name) | |
6057 | { | |
6058 | peer_aslist_update(aslist_name); | |
6059 | route_map_notify_dependencies((char *)aslist_name, | |
6060 | RMAP_EVENT_ASLIST_ADDED); | |
6061 | } | |
6062 | ||
6063 | static void peer_aslist_del(const char *aslist_name) | |
6064 | { | |
6065 | peer_aslist_update(aslist_name); | |
6066 | route_map_notify_dependencies(aslist_name, RMAP_EVENT_ASLIST_DELETED); | |
6067 | } | |
6068 | ||
6069 | ||
6070 | int peer_route_map_set(struct peer *peer, afi_t afi, safi_t safi, int direct, | |
1de27621 | 6071 | const char *name, struct route_map *route_map) |
d62a17ae | 6072 | { |
70ee29b4 | 6073 | struct peer *member; |
d62a17ae | 6074 | struct bgp_filter *filter; |
d62a17ae | 6075 | struct listnode *node, *nnode; |
6076 | ||
6077 | if (direct != RMAP_IN && direct != RMAP_OUT) | |
6078 | return BGP_ERR_INVALID_VALUE; | |
6079 | ||
70ee29b4 | 6080 | /* Set configuration on peer. */ |
d62a17ae | 6081 | filter = &peer->filter[afi][safi]; |
d62a17ae | 6082 | if (filter->map[direct].name) |
6083 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); | |
d62a17ae | 6084 | filter->map[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); |
1de27621 | 6085 | filter->map[direct].map = route_map; |
d62a17ae | 6086 | |
70ee29b4 | 6087 | /* Check if handling a regular peer. */ |
d62a17ae | 6088 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
6089 | /* Set override-flag and process peer route updates. */ |
6090 | SET_FLAG(peer->filter_override[afi][safi][direct], | |
6091 | PEER_FT_ROUTE_MAP); | |
d62a17ae | 6092 | peer_on_policy_change(peer, afi, safi, |
6093 | (direct == RMAP_OUT) ? 1 : 0); | |
70ee29b4 PM |
6094 | |
6095 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6096 | return 0; |
6097 | } | |
6098 | ||
70ee29b4 PM |
6099 | /* |
6100 | * Set configuration on all peer-group members, unless they are | |
6101 | * explicitely overriding peer-group configuration. | |
6102 | */ | |
6103 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6104 | /* Skip peers with overridden configuration. */ | |
6105 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
6106 | PEER_FT_ROUTE_MAP)) | |
6107 | continue; | |
d62a17ae | 6108 | |
70ee29b4 PM |
6109 | /* Set configuration on peer-group member. */ |
6110 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6111 | if (filter->map[direct].name) |
6112 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); | |
6113 | filter->map[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
1de27621 | 6114 | filter->map[direct].map = route_map; |
70ee29b4 PM |
6115 | |
6116 | /* Process peer route updates. */ | |
6117 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 6118 | (direct == RMAP_OUT) ? 1 : 0); |
6119 | } | |
6120 | return 0; | |
6121 | } | |
6122 | ||
6123 | /* Unset route-map from the peer. */ | |
6124 | int peer_route_map_unset(struct peer *peer, afi_t afi, safi_t safi, int direct) | |
6125 | { | |
70ee29b4 | 6126 | struct peer *member; |
d62a17ae | 6127 | struct bgp_filter *filter; |
d62a17ae | 6128 | struct listnode *node, *nnode; |
6129 | ||
6130 | if (direct != RMAP_IN && direct != RMAP_OUT) | |
6131 | return BGP_ERR_INVALID_VALUE; | |
6132 | ||
70ee29b4 PM |
6133 | /* Unset override-flag unconditionally. */ |
6134 | UNSET_FLAG(peer->filter_override[afi][safi][direct], PEER_FT_ROUTE_MAP); | |
d62a17ae | 6135 | |
70ee29b4 | 6136 | /* Inherit configuration from peer-group if peer is member. */ |
d62a17ae | 6137 | if (peer_group_active(peer)) { |
e7103a96 PM |
6138 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
6139 | filter[afi][safi].map[direct].name, | |
6140 | MTYPE_BGP_FILTER_NAME); | |
6141 | PEER_ATTR_INHERIT(peer, peer->group, | |
6142 | filter[afi][safi].map[direct].map); | |
70ee29b4 PM |
6143 | } else { |
6144 | /* Otherwise remove configuration from peer. */ | |
6145 | filter = &peer->filter[afi][safi]; | |
6146 | if (filter->map[direct].name) | |
6147 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); | |
6148 | filter->map[direct].name = NULL; | |
6149 | filter->map[direct].map = NULL; | |
d62a17ae | 6150 | } |
6151 | ||
70ee29b4 | 6152 | /* Check if handling a regular peer. */ |
d62a17ae | 6153 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 6154 | /* Process peer route updates. */ |
d62a17ae | 6155 | peer_on_policy_change(peer, afi, safi, |
6156 | (direct == RMAP_OUT) ? 1 : 0); | |
70ee29b4 PM |
6157 | |
6158 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6159 | return 0; |
6160 | } | |
6161 | ||
70ee29b4 PM |
6162 | /* |
6163 | * Remove configuration on all peer-group members, unless they are | |
6164 | * explicitely overriding peer-group configuration. | |
6165 | */ | |
6166 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6167 | /* Skip peers with overridden configuration. */ | |
6168 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
6169 | PEER_FT_ROUTE_MAP)) | |
6170 | continue; | |
d62a17ae | 6171 | |
70ee29b4 PM |
6172 | /* Remove configuration on peer-group member. */ |
6173 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6174 | if (filter->map[direct].name) |
6175 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); | |
6176 | filter->map[direct].name = NULL; | |
6177 | filter->map[direct].map = NULL; | |
70ee29b4 PM |
6178 | |
6179 | /* Process peer route updates. */ | |
6180 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 6181 | (direct == RMAP_OUT) ? 1 : 0); |
6182 | } | |
70ee29b4 | 6183 | |
d62a17ae | 6184 | return 0; |
6185 | } | |
6186 | ||
6187 | /* Set unsuppress-map to the peer. */ | |
6188 | int peer_unsuppress_map_set(struct peer *peer, afi_t afi, safi_t safi, | |
1de27621 | 6189 | const char *name, struct route_map *route_map) |
d62a17ae | 6190 | { |
70ee29b4 | 6191 | struct peer *member; |
d62a17ae | 6192 | struct bgp_filter *filter; |
d62a17ae | 6193 | struct listnode *node, *nnode; |
6194 | ||
70ee29b4 | 6195 | /* Set configuration on peer. */ |
d62a17ae | 6196 | filter = &peer->filter[afi][safi]; |
d62a17ae | 6197 | if (filter->usmap.name) |
6198 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
d62a17ae | 6199 | filter->usmap.name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); |
1de27621 | 6200 | filter->usmap.map = route_map; |
d62a17ae | 6201 | |
70ee29b4 | 6202 | /* Check if handling a regular peer. */ |
d62a17ae | 6203 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
6204 | /* Set override-flag and process peer route updates. */ |
6205 | SET_FLAG(peer->filter_override[afi][safi][0], | |
6206 | PEER_FT_UNSUPPRESS_MAP); | |
d62a17ae | 6207 | peer_on_policy_change(peer, afi, safi, 1); |
70ee29b4 PM |
6208 | |
6209 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6210 | return 0; |
6211 | } | |
6212 | ||
70ee29b4 PM |
6213 | /* |
6214 | * Set configuration on all peer-group members, unless they are | |
6215 | * explicitely overriding peer-group configuration. | |
6216 | */ | |
6217 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6218 | /* Skip peers with overridden configuration. */ | |
246bb5f0 | 6219 | if (CHECK_FLAG(member->filter_override[afi][safi][0], |
70ee29b4 PM |
6220 | PEER_FT_UNSUPPRESS_MAP)) |
6221 | continue; | |
d62a17ae | 6222 | |
70ee29b4 PM |
6223 | /* Set configuration on peer-group member. */ |
6224 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6225 | if (filter->usmap.name) |
6226 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
6227 | filter->usmap.name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
1de27621 | 6228 | filter->usmap.map = route_map; |
70ee29b4 PM |
6229 | |
6230 | /* Process peer route updates. */ | |
6231 | peer_on_policy_change(member, afi, safi, 1); | |
d62a17ae | 6232 | } |
70ee29b4 | 6233 | |
d62a17ae | 6234 | return 0; |
6235 | } | |
6236 | ||
6237 | /* Unset route-map from the peer. */ | |
6238 | int peer_unsuppress_map_unset(struct peer *peer, afi_t afi, safi_t safi) | |
718e3744 | 6239 | { |
70ee29b4 | 6240 | struct peer *member; |
d62a17ae | 6241 | struct bgp_filter *filter; |
d62a17ae | 6242 | struct listnode *node, *nnode; |
6243 | ||
70ee29b4 PM |
6244 | /* Unset override-flag unconditionally. */ |
6245 | UNSET_FLAG(peer->filter_override[afi][safi][0], PEER_FT_UNSUPPRESS_MAP); | |
718e3744 | 6246 | |
70ee29b4 PM |
6247 | /* Inherit configuration from peer-group if peer is member. */ |
6248 | if (peer_group_active(peer)) { | |
e7103a96 PM |
6249 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
6250 | filter[afi][safi].usmap.name, | |
6251 | MTYPE_BGP_FILTER_NAME); | |
6252 | PEER_ATTR_INHERIT(peer, peer->group, | |
6253 | filter[afi][safi].usmap.map); | |
70ee29b4 PM |
6254 | } else { |
6255 | /* Otherwise remove configuration from peer. */ | |
6256 | filter = &peer->filter[afi][safi]; | |
6257 | if (filter->usmap.name) | |
6258 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
6259 | filter->usmap.name = NULL; | |
6260 | filter->usmap.map = NULL; | |
6261 | } | |
718e3744 | 6262 | |
70ee29b4 | 6263 | /* Check if handling a regular peer. */ |
d62a17ae | 6264 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 6265 | /* Process peer route updates. */ |
d62a17ae | 6266 | peer_on_policy_change(peer, afi, safi, 1); |
70ee29b4 PM |
6267 | |
6268 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6269 | return 0; |
6270 | } | |
718e3744 | 6271 | |
70ee29b4 PM |
6272 | /* |
6273 | * Remove configuration on all peer-group members, unless they are | |
6274 | * explicitely overriding peer-group configuration. | |
6275 | */ | |
6276 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6277 | /* Skip peers with overridden configuration. */ | |
6278 | if (CHECK_FLAG(member->filter_override[afi][safi][0], | |
6279 | PEER_FT_UNSUPPRESS_MAP)) | |
6280 | continue; | |
718e3744 | 6281 | |
70ee29b4 PM |
6282 | /* Remove configuration on peer-group member. */ |
6283 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6284 | if (filter->usmap.name) |
6285 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
6286 | filter->usmap.name = NULL; | |
6287 | filter->usmap.map = NULL; | |
70ee29b4 PM |
6288 | |
6289 | /* Process peer route updates. */ | |
6290 | peer_on_policy_change(member, afi, safi, 1); | |
d62a17ae | 6291 | } |
70ee29b4 | 6292 | |
d62a17ae | 6293 | return 0; |
6294 | } | |
718e3744 | 6295 | |
d62a17ae | 6296 | int peer_maximum_prefix_set(struct peer *peer, afi_t afi, safi_t safi, |
d7c0a89a QY |
6297 | uint32_t max, uint8_t threshold, int warning, |
6298 | uint16_t restart) | |
d62a17ae | 6299 | { |
598ce6bd | 6300 | struct peer *member; |
d62a17ae | 6301 | struct listnode *node, *nnode; |
6302 | ||
598ce6bd PM |
6303 | /* Set flags and configuration on peer. */ |
6304 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_MAX_PREFIX); | |
d62a17ae | 6305 | if (warning) |
598ce6bd | 6306 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_MAX_PREFIX_WARNING); |
d62a17ae | 6307 | else |
598ce6bd PM |
6308 | peer_af_flag_unset(peer, afi, safi, |
6309 | PEER_FLAG_MAX_PREFIX_WARNING); | |
6310 | ||
04e1c5bb QY |
6311 | peer->pmax[afi][safi] = max; |
6312 | peer->pmax_threshold[afi][safi] = threshold; | |
6313 | peer->pmax_restart[afi][safi] = restart; | |
d62a17ae | 6314 | |
598ce6bd PM |
6315 | /* Check if handling a regular peer. */ |
6316 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
6317 | /* Re-check if peer violates maximum-prefix. */ | |
d62a17ae | 6318 | if ((peer->status == Established) && (peer->afc[afi][safi])) |
6319 | bgp_maximum_prefix_overflow(peer, afi, safi, 1); | |
04e1c5bb | 6320 | |
598ce6bd PM |
6321 | /* Skip peer-group mechanics for regular peers. */ |
6322 | return 0; | |
6323 | } | |
04e1c5bb | 6324 | |
598ce6bd PM |
6325 | /* |
6326 | * Set flags and configuration on all peer-group members, unless they | |
6327 | * are explicitely overriding peer-group configuration. | |
6328 | */ | |
6329 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6330 | /* Skip peers with overridden configuration. */ | |
6331 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
6332 | PEER_FLAG_MAX_PREFIX)) | |
6333 | continue; | |
04e1c5bb | 6334 | |
598ce6bd PM |
6335 | /* Set flag and configuration on peer-group member. */ |
6336 | member->pmax[afi][safi] = max; | |
6337 | member->pmax_threshold[afi][safi] = threshold; | |
6338 | member->pmax_restart[afi][safi] = restart; | |
04e1c5bb | 6339 | if (warning) |
598ce6bd | 6340 | SET_FLAG(member->af_flags[afi][safi], |
04e1c5bb QY |
6341 | PEER_FLAG_MAX_PREFIX_WARNING); |
6342 | else | |
598ce6bd | 6343 | UNSET_FLAG(member->af_flags[afi][safi], |
04e1c5bb | 6344 | PEER_FLAG_MAX_PREFIX_WARNING); |
598ce6bd PM |
6345 | |
6346 | /* Re-check if peer violates maximum-prefix. */ | |
6347 | if ((member->status == Established) && (member->afc[afi][safi])) | |
6348 | bgp_maximum_prefix_overflow(member, afi, safi, 1); | |
d62a17ae | 6349 | } |
718e3744 | 6350 | |
d62a17ae | 6351 | return 0; |
6352 | } | |
718e3744 | 6353 | |
d62a17ae | 6354 | int peer_maximum_prefix_unset(struct peer *peer, afi_t afi, safi_t safi) |
6355 | { | |
598ce6bd PM |
6356 | /* Inherit configuration from peer-group if peer is member. */ |
6357 | if (peer_group_active(peer)) { | |
6358 | peer_af_flag_inherit(peer, afi, safi, PEER_FLAG_MAX_PREFIX); | |
6359 | peer_af_flag_inherit(peer, afi, safi, | |
6360 | PEER_FLAG_MAX_PREFIX_WARNING); | |
e7103a96 PM |
6361 | PEER_ATTR_INHERIT(peer, peer->group, pmax[afi][safi]); |
6362 | PEER_ATTR_INHERIT(peer, peer->group, pmax_threshold[afi][safi]); | |
6363 | PEER_ATTR_INHERIT(peer, peer->group, pmax_restart[afi][safi]); | |
04e1c5bb | 6364 | |
d62a17ae | 6365 | return 0; |
04e1c5bb | 6366 | } |
d62a17ae | 6367 | |
598ce6bd PM |
6368 | /* Remove flags and configuration from peer. */ |
6369 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_MAX_PREFIX); | |
6370 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_MAX_PREFIX_WARNING); | |
6371 | peer->pmax[afi][safi] = 0; | |
6372 | peer->pmax_threshold[afi][safi] = 0; | |
6373 | peer->pmax_restart[afi][safi] = 0; | |
6374 | ||
04e1c5bb | 6375 | /* |
598ce6bd PM |
6376 | * Remove flags and configuration from all peer-group members, unless |
6377 | * they are explicitely overriding peer-group configuration. | |
04e1c5bb | 6378 | */ |
6282637d RW |
6379 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
6380 | struct peer *member; | |
6381 | struct listnode *node; | |
598ce6bd | 6382 | |
6282637d RW |
6383 | for (ALL_LIST_ELEMENTS_RO(peer->group->peer, node, member)) { |
6384 | /* Skip peers with overridden configuration. */ | |
6385 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
6386 | PEER_FLAG_MAX_PREFIX)) | |
6387 | continue; | |
6388 | ||
6389 | /* Remove flag and configuration on peer-group member. | |
6390 | */ | |
6391 | UNSET_FLAG(member->af_flags[afi][safi], | |
6392 | PEER_FLAG_MAX_PREFIX); | |
6393 | UNSET_FLAG(member->af_flags[afi][safi], | |
6394 | PEER_FLAG_MAX_PREFIX_WARNING); | |
6395 | member->pmax[afi][safi] = 0; | |
6396 | member->pmax_threshold[afi][safi] = 0; | |
6397 | member->pmax_restart[afi][safi] = 0; | |
6398 | } | |
d62a17ae | 6399 | } |
598ce6bd | 6400 | |
d62a17ae | 6401 | return 0; |
718e3744 | 6402 | } |
6403 | ||
d62a17ae | 6404 | int is_ebgp_multihop_configured(struct peer *peer) |
718e3744 | 6405 | { |
d62a17ae | 6406 | struct peer_group *group; |
6407 | struct listnode *node, *nnode; | |
6408 | struct peer *peer1; | |
718e3744 | 6409 | |
d62a17ae | 6410 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
6411 | group = peer->group; | |
6412 | if ((peer_sort(peer) != BGP_PEER_IBGP) | |
6413 | && (group->conf->ttl != 1)) | |
6414 | return 1; | |
718e3744 | 6415 | |
d62a17ae | 6416 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer1)) { |
6417 | if ((peer_sort(peer1) != BGP_PEER_IBGP) | |
6418 | && (peer1->ttl != 1)) | |
6419 | return 1; | |
6420 | } | |
6421 | } else { | |
6422 | if ((peer_sort(peer) != BGP_PEER_IBGP) && (peer->ttl != 1)) | |
6423 | return 1; | |
6424 | } | |
6425 | return 0; | |
6426 | } | |
718e3744 | 6427 | |
d62a17ae | 6428 | /* Set # of hops between us and BGP peer. */ |
6429 | int peer_ttl_security_hops_set(struct peer *peer, int gtsm_hops) | |
6430 | { | |
6431 | struct peer_group *group; | |
6432 | struct listnode *node, *nnode; | |
6433 | int ret; | |
6434 | ||
6435 | zlog_debug("peer_ttl_security_hops_set: set gtsm_hops to %d for %s", | |
6436 | gtsm_hops, peer->host); | |
6437 | ||
6438 | /* We cannot configure ttl-security hops when ebgp-multihop is already | |
6439 | set. For non peer-groups, the check is simple. For peer-groups, | |
6440 | it's | |
6441 | slightly messy, because we need to check both the peer-group | |
6442 | structure | |
6443 | and all peer-group members for any trace of ebgp-multihop | |
6444 | configuration | |
6445 | before actually applying the ttl-security rules. Cisco really made a | |
6446 | mess of this configuration parameter, and OpenBGPD got it right. | |
6447 | */ | |
6448 | ||
6449 | if ((peer->gtsm_hops == 0) && (peer->sort != BGP_PEER_IBGP)) { | |
6450 | if (is_ebgp_multihop_configured(peer)) | |
6451 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
6452 | ||
6453 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
6454 | peer->gtsm_hops = gtsm_hops; | |
6455 | ||
6456 | /* Calling ebgp multihop also resets the session. | |
6457 | * On restart, NHT will get setup correctly as will the | |
6458 | * min & max ttls on the socket. The return value is | |
6459 | * irrelevant. | |
6460 | */ | |
6461 | ret = peer_ebgp_multihop_set(peer, MAXTTL); | |
6462 | ||
6463 | if (ret != 0) | |
6464 | return ret; | |
6465 | } else { | |
6466 | group = peer->group; | |
6467 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, | |
6468 | peer)) { | |
6469 | peer->gtsm_hops = group->conf->gtsm_hops; | |
6470 | ||
6471 | /* Calling ebgp multihop also resets the | |
6472 | * session. | |
6473 | * On restart, NHT will get setup correctly as | |
6474 | * will the | |
6475 | * min & max ttls on the socket. The return | |
6476 | * value is | |
6477 | * irrelevant. | |
6478 | */ | |
6479 | peer_ebgp_multihop_set(peer, MAXTTL); | |
6480 | } | |
6481 | } | |
6482 | } else { | |
6483 | /* Post the first gtsm setup or if its ibgp, maxttl setting | |
6484 | * isn't | |
6485 | * necessary, just set the minttl. | |
6486 | */ | |
6487 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
6488 | peer->gtsm_hops = gtsm_hops; | |
6489 | ||
6490 | if (peer->fd >= 0) | |
6491 | sockopt_minttl(peer->su.sa.sa_family, peer->fd, | |
6492 | MAXTTL + 1 - gtsm_hops); | |
6493 | if ((peer->status < Established) && peer->doppelganger | |
6494 | && (peer->doppelganger->fd >= 0)) | |
6495 | sockopt_minttl(peer->su.sa.sa_family, | |
6496 | peer->doppelganger->fd, | |
6497 | MAXTTL + 1 - gtsm_hops); | |
6498 | } else { | |
6499 | group = peer->group; | |
6500 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, | |
6501 | peer)) { | |
6502 | peer->gtsm_hops = group->conf->gtsm_hops; | |
6503 | ||
6504 | /* Change setting of existing peer | |
6505 | * established then change value (may break | |
6506 | * connectivity) | |
6507 | * not established yet (teardown session and | |
6508 | * restart) | |
6509 | * no session then do nothing (will get | |
6510 | * handled by next connection) | |
6511 | */ | |
6512 | if (peer->fd >= 0 && peer->gtsm_hops != 0) | |
6513 | sockopt_minttl( | |
6514 | peer->su.sa.sa_family, peer->fd, | |
6515 | MAXTTL + 1 - peer->gtsm_hops); | |
6516 | if ((peer->status < Established) | |
6517 | && peer->doppelganger | |
6518 | && (peer->doppelganger->fd >= 0)) | |
6519 | sockopt_minttl(peer->su.sa.sa_family, | |
6520 | peer->doppelganger->fd, | |
6521 | MAXTTL + 1 - gtsm_hops); | |
6522 | } | |
6523 | } | |
6524 | } | |
718e3744 | 6525 | |
d62a17ae | 6526 | return 0; |
718e3744 | 6527 | } |
6528 | ||
d62a17ae | 6529 | int peer_ttl_security_hops_unset(struct peer *peer) |
6530 | { | |
6531 | struct peer_group *group; | |
6532 | struct listnode *node, *nnode; | |
6533 | int ret = 0; | |
6534 | ||
6535 | zlog_debug("peer_ttl_security_hops_unset: set gtsm_hops to zero for %s", | |
6536 | peer->host); | |
6537 | ||
6538 | /* if a peer-group member, then reset to peer-group default rather than | |
6539 | * 0 */ | |
6540 | if (peer_group_active(peer)) | |
6541 | peer->gtsm_hops = peer->group->conf->gtsm_hops; | |
6542 | else | |
6543 | peer->gtsm_hops = 0; | |
6544 | ||
6545 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
6546 | /* Invoking ebgp_multihop_set will set the TTL back to the | |
6547 | * original | |
6548 | * value as well as restting the NHT and such. The session is | |
6549 | * reset. | |
6550 | */ | |
6551 | if (peer->sort == BGP_PEER_EBGP) | |
6552 | ret = peer_ebgp_multihop_unset(peer); | |
6553 | else { | |
6554 | if (peer->fd >= 0) | |
6555 | sockopt_minttl(peer->su.sa.sa_family, peer->fd, | |
6556 | 0); | |
6557 | ||
6558 | if ((peer->status < Established) && peer->doppelganger | |
6559 | && (peer->doppelganger->fd >= 0)) | |
6560 | sockopt_minttl(peer->su.sa.sa_family, | |
6561 | peer->doppelganger->fd, 0); | |
6562 | } | |
6563 | } else { | |
6564 | group = peer->group; | |
6565 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
6566 | peer->gtsm_hops = 0; | |
6567 | if (peer->sort == BGP_PEER_EBGP) | |
6568 | ret = peer_ebgp_multihop_unset(peer); | |
6569 | else { | |
6570 | if (peer->fd >= 0) | |
6571 | sockopt_minttl(peer->su.sa.sa_family, | |
6572 | peer->fd, 0); | |
6573 | ||
6574 | if ((peer->status < Established) | |
6575 | && peer->doppelganger | |
6576 | && (peer->doppelganger->fd >= 0)) | |
6577 | sockopt_minttl(peer->su.sa.sa_family, | |
6578 | peer->doppelganger->fd, | |
6579 | 0); | |
6580 | } | |
6581 | } | |
6582 | } | |
718e3744 | 6583 | |
d62a17ae | 6584 | return ret; |
6585 | } | |
6586 | ||
6587 | /* | |
6588 | * If peer clear is invoked in a loop for all peers on the BGP instance, | |
6589 | * it may end up freeing the doppelganger, and if this was the next node | |
6590 | * to the current node, we would end up accessing the freed next node. | |
6591 | * Pass along additional parameter which can be updated if next node | |
6592 | * is freed; only required when walking the peer list on BGP instance. | |
6593 | */ | |
6594 | int peer_clear(struct peer *peer, struct listnode **nnode) | |
6595 | { | |
6596 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_SHUTDOWN)) { | |
6597 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_PREFIX_OVERFLOW)) { | |
6598 | UNSET_FLAG(peer->sflags, PEER_STATUS_PREFIX_OVERFLOW); | |
6599 | if (peer->t_pmax_restart) { | |
6600 | BGP_TIMER_OFF(peer->t_pmax_restart); | |
6601 | if (bgp_debug_neighbor_events(peer)) | |
6602 | zlog_debug( | |
6603 | "%s Maximum-prefix restart timer canceled", | |
6604 | peer->host); | |
6605 | } | |
6606 | BGP_EVENT_ADD(peer, BGP_Start); | |
6607 | return 0; | |
6608 | } | |
6609 | ||
6610 | peer->v_start = BGP_INIT_START_TIMER; | |
6611 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
6612 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
6613 | BGP_NOTIFY_CEASE_ADMIN_RESET); | |
6614 | else | |
6615 | bgp_session_reset_safe(peer, nnode); | |
718e3744 | 6616 | } |
d62a17ae | 6617 | return 0; |
718e3744 | 6618 | } |
6b0655a2 | 6619 | |
d62a17ae | 6620 | int peer_clear_soft(struct peer *peer, afi_t afi, safi_t safi, |
6621 | enum bgp_clear_type stype) | |
718e3744 | 6622 | { |
d62a17ae | 6623 | struct peer_af *paf; |
718e3744 | 6624 | |
d62a17ae | 6625 | if (peer->status != Established) |
6626 | return 0; | |
718e3744 | 6627 | |
d62a17ae | 6628 | if (!peer->afc[afi][safi]) |
6629 | return BGP_ERR_AF_UNCONFIGURED; | |
718e3744 | 6630 | |
d62a17ae | 6631 | peer->rtt = sockopt_tcp_rtt(peer->fd); |
718e3744 | 6632 | |
d62a17ae | 6633 | if (stype == BGP_CLEAR_SOFT_OUT || stype == BGP_CLEAR_SOFT_BOTH) { |
6634 | /* Clear the "neighbor x.x.x.x default-originate" flag */ | |
6635 | paf = peer_af_find(peer, afi, safi); | |
6636 | if (paf && paf->subgroup | |
6637 | && CHECK_FLAG(paf->subgroup->sflags, | |
6638 | SUBGRP_STATUS_DEFAULT_ORIGINATE)) | |
6639 | UNSET_FLAG(paf->subgroup->sflags, | |
6640 | SUBGRP_STATUS_DEFAULT_ORIGINATE); | |
718e3744 | 6641 | |
d62a17ae | 6642 | bgp_announce_route(peer, afi, safi); |
6643 | } | |
718e3744 | 6644 | |
d62a17ae | 6645 | if (stype == BGP_CLEAR_SOFT_IN_ORF_PREFIX) { |
6646 | if (CHECK_FLAG(peer->af_cap[afi][safi], | |
6647 | PEER_CAP_ORF_PREFIX_SM_ADV) | |
6648 | && (CHECK_FLAG(peer->af_cap[afi][safi], | |
6649 | PEER_CAP_ORF_PREFIX_RM_RCV) | |
6650 | || CHECK_FLAG(peer->af_cap[afi][safi], | |
6651 | PEER_CAP_ORF_PREFIX_RM_OLD_RCV))) { | |
6652 | struct bgp_filter *filter = &peer->filter[afi][safi]; | |
d7c0a89a | 6653 | uint8_t prefix_type; |
d62a17ae | 6654 | |
6655 | if (CHECK_FLAG(peer->af_cap[afi][safi], | |
6656 | PEER_CAP_ORF_PREFIX_RM_RCV)) | |
6657 | prefix_type = ORF_TYPE_PREFIX; | |
6658 | else | |
6659 | prefix_type = ORF_TYPE_PREFIX_OLD; | |
6660 | ||
6661 | if (filter->plist[FILTER_IN].plist) { | |
6662 | if (CHECK_FLAG(peer->af_sflags[afi][safi], | |
6663 | PEER_STATUS_ORF_PREFIX_SEND)) | |
6664 | bgp_route_refresh_send( | |
6665 | peer, afi, safi, prefix_type, | |
6666 | REFRESH_DEFER, 1); | |
6667 | bgp_route_refresh_send(peer, afi, safi, | |
6668 | prefix_type, | |
6669 | REFRESH_IMMEDIATE, 0); | |
6670 | } else { | |
6671 | if (CHECK_FLAG(peer->af_sflags[afi][safi], | |
6672 | PEER_STATUS_ORF_PREFIX_SEND)) | |
6673 | bgp_route_refresh_send( | |
6674 | peer, afi, safi, prefix_type, | |
6675 | REFRESH_IMMEDIATE, 1); | |
6676 | else | |
6677 | bgp_route_refresh_send(peer, afi, safi, | |
6678 | 0, 0, 0); | |
6679 | } | |
6680 | return 0; | |
6681 | } | |
6682 | } | |
718e3744 | 6683 | |
d62a17ae | 6684 | if (stype == BGP_CLEAR_SOFT_IN || stype == BGP_CLEAR_SOFT_BOTH |
6685 | || stype == BGP_CLEAR_SOFT_IN_ORF_PREFIX) { | |
6686 | /* If neighbor has soft reconfiguration inbound flag. | |
6687 | Use Adj-RIB-In database. */ | |
6688 | if (CHECK_FLAG(peer->af_flags[afi][safi], | |
6689 | PEER_FLAG_SOFT_RECONFIG)) | |
6690 | bgp_soft_reconfig_in(peer, afi, safi); | |
6691 | else { | |
6692 | /* If neighbor has route refresh capability, send route | |
6693 | refresh | |
6694 | message to the peer. */ | |
6695 | if (CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_OLD_RCV) | |
6696 | || CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_NEW_RCV)) | |
6697 | bgp_route_refresh_send(peer, afi, safi, 0, 0, | |
6698 | 0); | |
6699 | else | |
6700 | return BGP_ERR_SOFT_RECONFIG_UNCONFIGURED; | |
6701 | } | |
6702 | } | |
6703 | return 0; | |
718e3744 | 6704 | } |
6705 | ||
d62a17ae | 6706 | /* Display peer uptime.*/ |
9f049418 | 6707 | char *peer_uptime(time_t uptime2, char *buf, size_t len, bool use_json, |
d62a17ae | 6708 | json_object *json) |
6709 | { | |
6710 | time_t uptime1, epoch_tbuf; | |
6711 | struct tm *tm; | |
6712 | ||
d62a17ae | 6713 | /* If there is no connection has been done before print `never'. */ |
6714 | if (uptime2 == 0) { | |
6715 | if (use_json) { | |
6716 | json_object_string_add(json, "peerUptime", "never"); | |
6717 | json_object_int_add(json, "peerUptimeMsec", 0); | |
6718 | } else | |
6719 | snprintf(buf, len, "never"); | |
6720 | return buf; | |
6721 | } | |
718e3744 | 6722 | |
d62a17ae | 6723 | /* Get current time. */ |
6724 | uptime1 = bgp_clock(); | |
6725 | uptime1 -= uptime2; | |
6726 | tm = gmtime(&uptime1); | |
718e3744 | 6727 | |
d62a17ae | 6728 | if (uptime1 < ONE_DAY_SECOND) |
6729 | snprintf(buf, len, "%02d:%02d:%02d", tm->tm_hour, tm->tm_min, | |
6730 | tm->tm_sec); | |
6731 | else if (uptime1 < ONE_WEEK_SECOND) | |
6732 | snprintf(buf, len, "%dd%02dh%02dm", tm->tm_yday, tm->tm_hour, | |
6733 | tm->tm_min); | |
6734 | else if (uptime1 < ONE_YEAR_SECOND) | |
6735 | snprintf(buf, len, "%02dw%dd%02dh", tm->tm_yday / 7, | |
6736 | tm->tm_yday - ((tm->tm_yday / 7) * 7), tm->tm_hour); | |
6737 | else | |
6738 | snprintf(buf, len, "%02dy%02dw%dd", tm->tm_year - 70, | |
6739 | tm->tm_yday / 7, | |
6740 | tm->tm_yday - ((tm->tm_yday / 7) * 7)); | |
6741 | ||
6742 | if (use_json) { | |
6743 | epoch_tbuf = time(NULL) - uptime1; | |
6744 | json_object_string_add(json, "peerUptime", buf); | |
6745 | json_object_int_add(json, "peerUptimeMsec", uptime1 * 1000); | |
6746 | json_object_int_add(json, "peerUptimeEstablishedEpoch", | |
6747 | epoch_tbuf); | |
6748 | } | |
718e3744 | 6749 | |
d62a17ae | 6750 | return buf; |
718e3744 | 6751 | } |
6752 | ||
d62a17ae | 6753 | static void bgp_config_write_filter(struct vty *vty, struct peer *peer, |
2b791107 | 6754 | afi_t afi, safi_t safi) |
518f0eb1 | 6755 | { |
d62a17ae | 6756 | struct bgp_filter *filter; |
d62a17ae | 6757 | char *addr; |
518f0eb1 | 6758 | |
d62a17ae | 6759 | addr = peer->host; |
6760 | filter = &peer->filter[afi][safi]; | |
518f0eb1 | 6761 | |
d62a17ae | 6762 | /* distribute-list. */ |
70ee29b4 PM |
6763 | if (peergroup_filter_check(peer, afi, safi, PEER_FT_DISTRIBUTE_LIST, |
6764 | FILTER_IN)) | |
6765 | vty_out(vty, " neighbor %s distribute-list %s in\n", addr, | |
6766 | filter->dlist[FILTER_IN].name); | |
6b0655a2 | 6767 | |
70ee29b4 PM |
6768 | if (peergroup_filter_check(peer, afi, safi, PEER_FT_DISTRIBUTE_LIST, |
6769 | FILTER_OUT)) | |
2b791107 | 6770 | vty_out(vty, " neighbor %s distribute-list %s out\n", addr, |
70ee29b4 | 6771 | filter->dlist[FILTER_OUT].name); |
718e3744 | 6772 | |
d62a17ae | 6773 | /* prefix-list. */ |
70ee29b4 PM |
6774 | if (peergroup_filter_check(peer, afi, safi, PEER_FT_PREFIX_LIST, |
6775 | FILTER_IN)) | |
6776 | vty_out(vty, " neighbor %s prefix-list %s in\n", addr, | |
6777 | filter->plist[FILTER_IN].name); | |
718e3744 | 6778 | |
70ee29b4 PM |
6779 | if (peergroup_filter_check(peer, afi, safi, PEER_FT_PREFIX_LIST, |
6780 | FILTER_OUT)) | |
6781 | vty_out(vty, " neighbor %s prefix-list %s out\n", addr, | |
6782 | filter->plist[FILTER_OUT].name); | |
718e3744 | 6783 | |
d62a17ae | 6784 | /* route-map. */ |
70ee29b4 PM |
6785 | if (peergroup_filter_check(peer, afi, safi, PEER_FT_ROUTE_MAP, RMAP_IN)) |
6786 | vty_out(vty, " neighbor %s route-map %s in\n", addr, | |
6787 | filter->map[RMAP_IN].name); | |
518f0eb1 | 6788 | |
70ee29b4 PM |
6789 | if (peergroup_filter_check(peer, afi, safi, PEER_FT_ROUTE_MAP, |
6790 | RMAP_OUT)) | |
6791 | vty_out(vty, " neighbor %s route-map %s out\n", addr, | |
6792 | filter->map[RMAP_OUT].name); | |
718e3744 | 6793 | |
d62a17ae | 6794 | /* unsuppress-map */ |
70ee29b4 | 6795 | if (peergroup_filter_check(peer, afi, safi, PEER_FT_UNSUPPRESS_MAP, 0)) |
2b791107 DL |
6796 | vty_out(vty, " neighbor %s unsuppress-map %s\n", addr, |
6797 | filter->usmap.name); | |
718e3744 | 6798 | |
d62a17ae | 6799 | /* filter-list. */ |
70ee29b4 PM |
6800 | if (peergroup_filter_check(peer, afi, safi, PEER_FT_FILTER_LIST, |
6801 | FILTER_IN)) | |
6802 | vty_out(vty, " neighbor %s filter-list %s in\n", addr, | |
6803 | filter->aslist[FILTER_IN].name); | |
718e3744 | 6804 | |
70ee29b4 PM |
6805 | if (peergroup_filter_check(peer, afi, safi, PEER_FT_FILTER_LIST, |
6806 | FILTER_OUT)) | |
2b791107 | 6807 | vty_out(vty, " neighbor %s filter-list %s out\n", addr, |
70ee29b4 | 6808 | filter->aslist[FILTER_OUT].name); |
718e3744 | 6809 | } |
6810 | ||
d62a17ae | 6811 | /* BGP peer configuration display function. */ |
6812 | static void bgp_config_write_peer_global(struct vty *vty, struct bgp *bgp, | |
6813 | struct peer *peer) | |
6814 | { | |
6815 | struct peer *g_peer = NULL; | |
6816 | char buf[SU_ADDRSTRLEN]; | |
6817 | char *addr; | |
6818 | int if_pg_printed = FALSE; | |
6819 | int if_ras_printed = FALSE; | |
6820 | ||
6821 | /* Skip dynamic neighbors. */ | |
6822 | if (peer_dynamic_neighbor(peer)) | |
6823 | return; | |
6824 | ||
6825 | if (peer->conf_if) | |
6826 | addr = peer->conf_if; | |
6827 | else | |
6828 | addr = peer->host; | |
6829 | ||
6830 | /************************************ | |
6831 | ****** Global to the neighbor ****** | |
6832 | ************************************/ | |
6833 | if (peer->conf_if) { | |
6834 | if (CHECK_FLAG(peer->flags, PEER_FLAG_IFPEER_V6ONLY)) | |
6835 | vty_out(vty, " neighbor %s interface v6only", addr); | |
6836 | else | |
6837 | vty_out(vty, " neighbor %s interface", addr); | |
6838 | ||
6839 | if (peer_group_active(peer)) { | |
6840 | vty_out(vty, " peer-group %s", peer->group->name); | |
6841 | if_pg_printed = TRUE; | |
6842 | } else if (peer->as_type == AS_SPECIFIED) { | |
6843 | vty_out(vty, " remote-as %u", peer->as); | |
6844 | if_ras_printed = TRUE; | |
6845 | } else if (peer->as_type == AS_INTERNAL) { | |
6846 | vty_out(vty, " remote-as internal"); | |
6847 | if_ras_printed = TRUE; | |
6848 | } else if (peer->as_type == AS_EXTERNAL) { | |
6849 | vty_out(vty, " remote-as external"); | |
6850 | if_ras_printed = TRUE; | |
6851 | } | |
718e3744 | 6852 | |
d62a17ae | 6853 | vty_out(vty, "\n"); |
6854 | } | |
718e3744 | 6855 | |
d62a17ae | 6856 | /* remote-as and peer-group */ |
6857 | /* peer is a member of a peer-group */ | |
6858 | if (peer_group_active(peer)) { | |
6859 | g_peer = peer->group->conf; | |
6860 | ||
6861 | if (g_peer->as_type == AS_UNSPECIFIED && !if_ras_printed) { | |
6862 | if (peer->as_type == AS_SPECIFIED) { | |
6863 | vty_out(vty, " neighbor %s remote-as %u\n", | |
6864 | addr, peer->as); | |
6865 | } else if (peer->as_type == AS_INTERNAL) { | |
6866 | vty_out(vty, | |
6867 | " neighbor %s remote-as internal\n", | |
6868 | addr); | |
6869 | } else if (peer->as_type == AS_EXTERNAL) { | |
6870 | vty_out(vty, | |
6871 | " neighbor %s remote-as external\n", | |
6872 | addr); | |
6873 | } | |
6874 | } | |
718e3744 | 6875 | |
d62a17ae | 6876 | /* For swpX peers we displayed the peer-group |
6877 | * via 'neighbor swpX interface peer-group WORD' */ | |
6878 | if (!if_pg_printed) | |
6879 | vty_out(vty, " neighbor %s peer-group %s\n", addr, | |
6880 | peer->group->name); | |
6881 | } | |
718e3744 | 6882 | |
d62a17ae | 6883 | /* peer is NOT a member of a peer-group */ |
6884 | else { | |
6885 | /* peer is a peer-group, declare the peer-group */ | |
6886 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
6887 | vty_out(vty, " neighbor %s peer-group\n", addr); | |
6888 | } | |
6b0655a2 | 6889 | |
d62a17ae | 6890 | if (!if_ras_printed) { |
6891 | if (peer->as_type == AS_SPECIFIED) { | |
6892 | vty_out(vty, " neighbor %s remote-as %u\n", | |
6893 | addr, peer->as); | |
6894 | } else if (peer->as_type == AS_INTERNAL) { | |
6895 | vty_out(vty, | |
6896 | " neighbor %s remote-as internal\n", | |
6897 | addr); | |
6898 | } else if (peer->as_type == AS_EXTERNAL) { | |
6899 | vty_out(vty, | |
6900 | " neighbor %s remote-as external\n", | |
6901 | addr); | |
6902 | } | |
6903 | } | |
6904 | } | |
718e3744 | 6905 | |
d62a17ae | 6906 | /* local-as */ |
a14810f4 PM |
6907 | if (peergroup_flag_check(peer, PEER_FLAG_LOCAL_AS)) { |
6908 | vty_out(vty, " neighbor %s local-as %u", addr, | |
6909 | peer->change_local_as); | |
6910 | if (peergroup_flag_check(peer, PEER_FLAG_LOCAL_AS_NO_PREPEND)) | |
6911 | vty_out(vty, " no-prepend"); | |
6912 | if (peergroup_flag_check(peer, PEER_FLAG_LOCAL_AS_REPLACE_AS)) | |
6913 | vty_out(vty, " replace-as"); | |
6914 | vty_out(vty, "\n"); | |
5f9adb5d | 6915 | } |
5f9adb5d | 6916 | |
d62a17ae | 6917 | /* description */ |
6918 | if (peer->desc) { | |
6919 | vty_out(vty, " neighbor %s description %s\n", addr, peer->desc); | |
6920 | } | |
fa411a21 | 6921 | |
d62a17ae | 6922 | /* shutdown */ |
9fb964de PM |
6923 | if (peergroup_flag_check(peer, PEER_FLAG_SHUTDOWN)) { |
6924 | if (peer->tx_shutdown_message) | |
6925 | vty_out(vty, " neighbor %s shutdown message %s\n", addr, | |
6926 | peer->tx_shutdown_message); | |
6927 | else | |
6928 | vty_out(vty, " neighbor %s shutdown\n", addr); | |
d62a17ae | 6929 | } |
fa411a21 | 6930 | |
d62a17ae | 6931 | /* bfd */ |
6932 | if (peer->bfd_info) { | |
6933 | if (!peer_group_active(peer) || !g_peer->bfd_info) { | |
6934 | bgp_bfd_peer_config_write(vty, peer, addr); | |
6935 | } | |
6936 | } | |
e5cc509c | 6937 | |
d62a17ae | 6938 | /* password */ |
a14810f4 PM |
6939 | if (peergroup_flag_check(peer, PEER_FLAG_PASSWORD)) |
6940 | vty_out(vty, " neighbor %s password %s\n", addr, | |
6941 | peer->password); | |
fa411a21 | 6942 | |
d62a17ae | 6943 | /* neighbor solo */ |
6944 | if (CHECK_FLAG(peer->flags, PEER_FLAG_LONESOUL)) { | |
6945 | if (!peer_group_active(peer)) { | |
6946 | vty_out(vty, " neighbor %s solo\n", addr); | |
6947 | } | |
6948 | } | |
fa411a21 | 6949 | |
d62a17ae | 6950 | /* BGP port */ |
6951 | if (peer->port != BGP_PORT_DEFAULT) { | |
6952 | vty_out(vty, " neighbor %s port %d\n", addr, peer->port); | |
6953 | } | |
e5cc509c | 6954 | |
d62a17ae | 6955 | /* Local interface name */ |
6956 | if (peer->ifname) { | |
6957 | vty_out(vty, " neighbor %s interface %s\n", addr, peer->ifname); | |
e5cc509c | 6958 | } |
fa411a21 | 6959 | |
d62a17ae | 6960 | /* passive */ |
9fb964de PM |
6961 | if (peergroup_flag_check(peer, PEER_FLAG_PASSIVE)) |
6962 | vty_out(vty, " neighbor %s passive\n", addr); | |
1ff9a340 | 6963 | |
d62a17ae | 6964 | /* ebgp-multihop */ |
6965 | if (peer->sort != BGP_PEER_IBGP && peer->ttl != 1 | |
6966 | && !(peer->gtsm_hops != 0 && peer->ttl == MAXTTL)) { | |
6967 | if (!peer_group_active(peer) || g_peer->ttl != peer->ttl) { | |
6968 | vty_out(vty, " neighbor %s ebgp-multihop %d\n", addr, | |
6969 | peer->ttl); | |
6970 | } | |
fa411a21 | 6971 | } |
fa411a21 | 6972 | |
d62a17ae | 6973 | /* ttl-security hops */ |
6974 | if (peer->gtsm_hops != 0) { | |
6975 | if (!peer_group_active(peer) | |
6976 | || g_peer->gtsm_hops != peer->gtsm_hops) { | |
6977 | vty_out(vty, " neighbor %s ttl-security hops %d\n", | |
6978 | addr, peer->gtsm_hops); | |
6979 | } | |
6980 | } | |
6981 | ||
6982 | /* disable-connected-check */ | |
9fb964de PM |
6983 | if (peergroup_flag_check(peer, PEER_FLAG_DISABLE_CONNECTED_CHECK)) |
6984 | vty_out(vty, " neighbor %s disable-connected-check\n", addr); | |
d62a17ae | 6985 | |
47cbc09b | 6986 | /* enforce-first-as */ |
9fb964de PM |
6987 | if (peergroup_flag_check(peer, PEER_FLAG_ENFORCE_FIRST_AS)) |
6988 | vty_out(vty, " neighbor %s enforce-first-as\n", addr); | |
47cbc09b | 6989 | |
d62a17ae | 6990 | /* update-source */ |
a14810f4 PM |
6991 | if (peergroup_flag_check(peer, PEER_FLAG_UPDATE_SOURCE)) { |
6992 | if (peer->update_source) | |
d62a17ae | 6993 | vty_out(vty, " neighbor %s update-source %s\n", addr, |
6994 | sockunion2str(peer->update_source, buf, | |
6995 | SU_ADDRSTRLEN)); | |
a14810f4 PM |
6996 | else if (peer->update_if) |
6997 | vty_out(vty, " neighbor %s update-source %s\n", addr, | |
6998 | peer->update_if); | |
d62a17ae | 6999 | } |
7000 | ||
7001 | /* advertisement-interval */ | |
b90a8e13 | 7002 | if (peergroup_flag_check(peer, PEER_FLAG_ROUTEADV)) |
d62a17ae | 7003 | vty_out(vty, " neighbor %s advertisement-interval %u\n", addr, |
b90a8e13 | 7004 | peer->routeadv); |
d62a17ae | 7005 | |
7006 | /* timers */ | |
b90a8e13 | 7007 | if (peergroup_flag_check(peer, PEER_FLAG_TIMER)) |
d62a17ae | 7008 | vty_out(vty, " neighbor %s timers %u %u\n", addr, |
7009 | peer->keepalive, peer->holdtime); | |
d62a17ae | 7010 | |
b90a8e13 PM |
7011 | /* timers connect */ |
7012 | if (peergroup_flag_check(peer, PEER_FLAG_TIMER_CONNECT)) | |
d62a17ae | 7013 | vty_out(vty, " neighbor %s timers connect %u\n", addr, |
7014 | peer->connect); | |
6b0655a2 | 7015 | |
d62a17ae | 7016 | /* capability dynamic */ |
9fb964de PM |
7017 | if (peergroup_flag_check(peer, PEER_FLAG_DYNAMIC_CAPABILITY)) |
7018 | vty_out(vty, " neighbor %s capability dynamic\n", addr); | |
718e3744 | 7019 | |
d62a17ae | 7020 | /* capability extended-nexthop */ |
9fb964de PM |
7021 | if (peergroup_flag_check(peer, PEER_FLAG_CAPABILITY_ENHE)) { |
7022 | if (CHECK_FLAG(peer->flags_invert, PEER_FLAG_CAPABILITY_ENHE)) | |
d62a17ae | 7023 | vty_out(vty, |
7024 | " no neighbor %s capability extended-nexthop\n", | |
7025 | addr); | |
9fb964de | 7026 | else |
d62a17ae | 7027 | vty_out(vty, |
7028 | " neighbor %s capability extended-nexthop\n", | |
7029 | addr); | |
d62a17ae | 7030 | } |
7031 | ||
7032 | /* dont-capability-negotiation */ | |
9fb964de PM |
7033 | if (peergroup_flag_check(peer, PEER_FLAG_DONT_CAPABILITY)) |
7034 | vty_out(vty, " neighbor %s dont-capability-negotiate\n", addr); | |
d62a17ae | 7035 | |
7036 | /* override-capability */ | |
9fb964de PM |
7037 | if (peergroup_flag_check(peer, PEER_FLAG_OVERRIDE_CAPABILITY)) |
7038 | vty_out(vty, " neighbor %s override-capability\n", addr); | |
d62a17ae | 7039 | |
7040 | /* strict-capability-match */ | |
9fb964de PM |
7041 | if (peergroup_flag_check(peer, PEER_FLAG_STRICT_CAP_MATCH)) |
7042 | vty_out(vty, " neighbor %s strict-capability-match\n", addr); | |
0b960b4d DW |
7043 | } |
7044 | ||
0b960b4d | 7045 | /* BGP peer configuration display function. */ |
d62a17ae | 7046 | static void bgp_config_write_peer_af(struct vty *vty, struct bgp *bgp, |
2b791107 | 7047 | struct peer *peer, afi_t afi, safi_t safi) |
d62a17ae | 7048 | { |
7049 | struct peer *g_peer = NULL; | |
7050 | char *addr; | |
27c05d4d | 7051 | bool flag_scomm, flag_secomm, flag_slcomm; |
d62a17ae | 7052 | |
7053 | /* Skip dynamic neighbors. */ | |
7054 | if (peer_dynamic_neighbor(peer)) | |
7055 | return; | |
7056 | ||
7057 | if (peer->conf_if) | |
7058 | addr = peer->conf_if; | |
7059 | else | |
7060 | addr = peer->host; | |
7061 | ||
7062 | /************************************ | |
7063 | ****** Per AF to the neighbor ****** | |
7064 | ************************************/ | |
7065 | if (peer_group_active(peer)) { | |
7066 | g_peer = peer->group->conf; | |
7067 | ||
7068 | /* If the peer-group is active but peer is not, print a 'no | |
7069 | * activate' */ | |
7070 | if (g_peer->afc[afi][safi] && !peer->afc[afi][safi]) { | |
2b791107 | 7071 | vty_out(vty, " no neighbor %s activate\n", addr); |
d62a17ae | 7072 | } |
7073 | ||
7074 | /* If the peer-group is not active but peer is, print an | |
7075 | 'activate' */ | |
7076 | else if (!g_peer->afc[afi][safi] && peer->afc[afi][safi]) { | |
2b791107 | 7077 | vty_out(vty, " neighbor %s activate\n", addr); |
d62a17ae | 7078 | } |
7079 | } else { | |
7080 | if (peer->afc[afi][safi]) { | |
7081 | if ((afi == AFI_IP) && (safi == SAFI_UNICAST)) { | |
7082 | if (bgp_flag_check(bgp, | |
7083 | BGP_FLAG_NO_DEFAULT_IPV4)) { | |
2b791107 | 7084 | vty_out(vty, " neighbor %s activate\n", |
d62a17ae | 7085 | addr); |
7086 | } | |
7087 | } else | |
2b791107 | 7088 | vty_out(vty, " neighbor %s activate\n", addr); |
d62a17ae | 7089 | } else { |
7090 | if ((afi == AFI_IP) && (safi == SAFI_UNICAST)) { | |
7091 | if (!bgp_flag_check(bgp, | |
7092 | BGP_FLAG_NO_DEFAULT_IPV4)) { | |
2b791107 | 7093 | vty_out(vty, |
d62a17ae | 7094 | " no neighbor %s activate\n", |
7095 | addr); | |
7096 | } | |
7097 | } | |
7098 | } | |
7099 | } | |
7100 | ||
7101 | /* addpath TX knobs */ | |
dcc68b5e MS |
7102 | if (peergroup_af_addpath_check(peer, afi, safi)) { |
7103 | switch (peer->addpath_type[afi][safi]) { | |
7104 | case BGP_ADDPATH_ALL: | |
7105 | vty_out(vty, " neighbor %s addpath-tx-all-paths\n", | |
7106 | addr); | |
7107 | break; | |
7108 | case BGP_ADDPATH_BEST_PER_AS: | |
7109 | vty_out(vty, | |
7110 | " neighbor %s addpath-tx-bestpath-per-AS\n", | |
7111 | addr); | |
7112 | break; | |
7113 | case BGP_ADDPATH_MAX: | |
7114 | case BGP_ADDPATH_NONE: | |
7115 | break; | |
7116 | } | |
d62a17ae | 7117 | } |
7118 | ||
7119 | /* ORF capability. */ | |
7120 | if (peergroup_af_flag_check(peer, afi, safi, PEER_FLAG_ORF_PREFIX_SM) | |
7121 | || peergroup_af_flag_check(peer, afi, safi, | |
7122 | PEER_FLAG_ORF_PREFIX_RM)) { | |
2b791107 | 7123 | vty_out(vty, " neighbor %s capability orf prefix-list", addr); |
d62a17ae | 7124 | |
7125 | if (peergroup_af_flag_check(peer, afi, safi, | |
7126 | PEER_FLAG_ORF_PREFIX_SM) | |
7127 | && peergroup_af_flag_check(peer, afi, safi, | |
7128 | PEER_FLAG_ORF_PREFIX_RM)) | |
7129 | vty_out(vty, " both"); | |
7130 | else if (peergroup_af_flag_check(peer, afi, safi, | |
7131 | PEER_FLAG_ORF_PREFIX_SM)) | |
7132 | vty_out(vty, " send"); | |
7133 | else | |
7134 | vty_out(vty, " receive"); | |
7135 | vty_out(vty, "\n"); | |
7136 | } | |
7137 | ||
7138 | /* Route reflector client. */ | |
7139 | if (peergroup_af_flag_check(peer, afi, safi, | |
7140 | PEER_FLAG_REFLECTOR_CLIENT)) { | |
2b791107 | 7141 | vty_out(vty, " neighbor %s route-reflector-client\n", addr); |
d62a17ae | 7142 | } |
7143 | ||
7144 | /* next-hop-self force */ | |
7145 | if (peergroup_af_flag_check(peer, afi, safi, | |
7146 | PEER_FLAG_FORCE_NEXTHOP_SELF)) { | |
2b791107 | 7147 | vty_out(vty, " neighbor %s next-hop-self force\n", addr); |
d62a17ae | 7148 | } |
7149 | ||
7150 | /* next-hop-self */ | |
7151 | if (peergroup_af_flag_check(peer, afi, safi, PEER_FLAG_NEXTHOP_SELF)) { | |
2b791107 | 7152 | vty_out(vty, " neighbor %s next-hop-self\n", addr); |
d62a17ae | 7153 | } |
7154 | ||
7155 | /* remove-private-AS */ | |
7156 | if (peergroup_af_flag_check(peer, afi, safi, | |
7157 | PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE)) { | |
2b791107 | 7158 | vty_out(vty, " neighbor %s remove-private-AS all replace-AS\n", |
d62a17ae | 7159 | addr); |
7160 | } | |
7161 | ||
7162 | else if (peergroup_af_flag_check(peer, afi, safi, | |
7163 | PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE)) { | |
2b791107 DL |
7164 | vty_out(vty, " neighbor %s remove-private-AS replace-AS\n", |
7165 | addr); | |
d62a17ae | 7166 | } |
7167 | ||
7168 | else if (peergroup_af_flag_check(peer, afi, safi, | |
7169 | PEER_FLAG_REMOVE_PRIVATE_AS_ALL)) { | |
2b791107 | 7170 | vty_out(vty, " neighbor %s remove-private-AS all\n", addr); |
d62a17ae | 7171 | } |
7172 | ||
7173 | else if (peergroup_af_flag_check(peer, afi, safi, | |
7174 | PEER_FLAG_REMOVE_PRIVATE_AS)) { | |
2b791107 | 7175 | vty_out(vty, " neighbor %s remove-private-AS\n", addr); |
d62a17ae | 7176 | } |
7177 | ||
7178 | /* as-override */ | |
7179 | if (peergroup_af_flag_check(peer, afi, safi, PEER_FLAG_AS_OVERRIDE)) { | |
2b791107 | 7180 | vty_out(vty, " neighbor %s as-override\n", addr); |
d62a17ae | 7181 | } |
7182 | ||
7183 | /* send-community print. */ | |
27c05d4d | 7184 | flag_scomm = peergroup_af_flag_check(peer, afi, safi, |
cf9ac8bf | 7185 | PEER_FLAG_SEND_COMMUNITY); |
27c05d4d | 7186 | flag_secomm = peergroup_af_flag_check(peer, afi, safi, |
cf9ac8bf | 7187 | PEER_FLAG_SEND_EXT_COMMUNITY); |
27c05d4d | 7188 | flag_slcomm = peergroup_af_flag_check(peer, afi, safi, |
cf9ac8bf | 7189 | PEER_FLAG_SEND_LARGE_COMMUNITY); |
27c05d4d PM |
7190 | |
7191 | if (!bgp_option_check(BGP_OPT_CONFIG_CISCO)) { | |
7192 | if (flag_scomm && flag_secomm && flag_slcomm) { | |
2b791107 DL |
7193 | vty_out(vty, " no neighbor %s send-community all\n", |
7194 | addr); | |
d62a17ae | 7195 | } else { |
27c05d4d | 7196 | if (flag_scomm) |
2b791107 | 7197 | vty_out(vty, |
27c05d4d | 7198 | " no neighbor %s send-community\n", |
d62a17ae | 7199 | addr); |
27c05d4d | 7200 | if (flag_secomm) |
2b791107 | 7201 | vty_out(vty, |
d62a17ae | 7202 | " no neighbor %s send-community extended\n", |
7203 | addr); | |
d62a17ae | 7204 | |
27c05d4d | 7205 | if (flag_slcomm) |
2b791107 | 7206 | vty_out(vty, |
27c05d4d PM |
7207 | " no neighbor %s send-community large\n", |
7208 | addr); | |
7209 | } | |
7210 | } else { | |
7211 | if (flag_scomm && flag_secomm && flag_slcomm) { | |
7212 | vty_out(vty, " neighbor %s send-community all\n", | |
7213 | addr); | |
7214 | } else if (flag_scomm && flag_secomm) { | |
7215 | vty_out(vty, " neighbor %s send-community both\n", | |
7216 | addr); | |
7217 | } else { | |
7218 | if (flag_scomm) | |
7219 | vty_out(vty, " neighbor %s send-community\n", | |
7220 | addr); | |
7221 | if (flag_secomm) | |
7222 | vty_out(vty, | |
7223 | " neighbor %s send-community extended\n", | |
7224 | addr); | |
7225 | if (flag_slcomm) | |
7226 | vty_out(vty, | |
7227 | " neighbor %s send-community large\n", | |
d62a17ae | 7228 | addr); |
d62a17ae | 7229 | } |
7230 | } | |
7231 | ||
7232 | /* Default information */ | |
7233 | if (peergroup_af_flag_check(peer, afi, safi, | |
598ce6bd | 7234 | PEER_FLAG_DEFAULT_ORIGINATE)) { |
2b791107 | 7235 | vty_out(vty, " neighbor %s default-originate", addr); |
598ce6bd | 7236 | |
d62a17ae | 7237 | if (peer->default_rmap[afi][safi].name) |
7238 | vty_out(vty, " route-map %s", | |
7239 | peer->default_rmap[afi][safi].name); | |
598ce6bd | 7240 | |
d62a17ae | 7241 | vty_out(vty, "\n"); |
7242 | } | |
7243 | ||
7244 | /* Soft reconfiguration inbound. */ | |
7245 | if (peergroup_af_flag_check(peer, afi, safi, PEER_FLAG_SOFT_RECONFIG)) { | |
2b791107 DL |
7246 | vty_out(vty, " neighbor %s soft-reconfiguration inbound\n", |
7247 | addr); | |
d62a17ae | 7248 | } |
7249 | ||
7250 | /* maximum-prefix. */ | |
598ce6bd PM |
7251 | if (peergroup_af_flag_check(peer, afi, safi, PEER_FLAG_MAX_PREFIX)) { |
7252 | vty_out(vty, " neighbor %s maximum-prefix %lu", addr, | |
7253 | peer->pmax[afi][safi]); | |
7254 | ||
7255 | if (peer->pmax_threshold[afi][safi] | |
7256 | != MAXIMUM_PREFIX_THRESHOLD_DEFAULT) | |
7257 | vty_out(vty, " %u", peer->pmax_threshold[afi][safi]); | |
7258 | if (peer_af_flag_check(peer, afi, safi, | |
d62a17ae | 7259 | PEER_FLAG_MAX_PREFIX_WARNING)) |
598ce6bd PM |
7260 | vty_out(vty, " warning-only"); |
7261 | if (peer->pmax_restart[afi][safi]) | |
7262 | vty_out(vty, " restart %u", | |
7263 | peer->pmax_restart[afi][safi]); | |
7264 | ||
7265 | vty_out(vty, "\n"); | |
7266 | } | |
d62a17ae | 7267 | |
7268 | /* Route server client. */ | |
7269 | if (peergroup_af_flag_check(peer, afi, safi, | |
7270 | PEER_FLAG_RSERVER_CLIENT)) { | |
2b791107 | 7271 | vty_out(vty, " neighbor %s route-server-client\n", addr); |
d62a17ae | 7272 | } |
7273 | ||
7274 | /* Nexthop-local unchanged. */ | |
7275 | if (peergroup_af_flag_check(peer, afi, safi, | |
7276 | PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED)) { | |
2b791107 | 7277 | vty_out(vty, " neighbor %s nexthop-local unchanged\n", addr); |
d62a17ae | 7278 | } |
7279 | ||
7280 | /* allowas-in <1-10> */ | |
598ce6bd PM |
7281 | if (peergroup_af_flag_check(peer, afi, safi, PEER_FLAG_ALLOWAS_IN)) { |
7282 | if (peer_af_flag_check(peer, afi, safi, | |
7283 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { | |
2b791107 | 7284 | vty_out(vty, " neighbor %s allowas-in origin\n", addr); |
598ce6bd PM |
7285 | } else if (peer->allowas_in[afi][safi] == 3) { |
7286 | vty_out(vty, " neighbor %s allowas-in\n", addr); | |
7287 | } else { | |
7288 | vty_out(vty, " neighbor %s allowas-in %d\n", addr, | |
cf9ac8bf | 7289 | peer->allowas_in[afi][safi]); |
d62a17ae | 7290 | } |
7291 | } | |
7292 | ||
7293 | /* weight */ | |
598ce6bd PM |
7294 | if (peergroup_af_flag_check(peer, afi, safi, PEER_FLAG_WEIGHT)) |
7295 | vty_out(vty, " neighbor %s weight %lu\n", addr, | |
7296 | peer->weight[afi][safi]); | |
d62a17ae | 7297 | |
7298 | /* Filter. */ | |
2b791107 | 7299 | bgp_config_write_filter(vty, peer, afi, safi); |
d62a17ae | 7300 | |
7301 | /* atribute-unchanged. */ | |
a4d82a8a | 7302 | if (peer_af_flag_check(peer, afi, safi, PEER_FLAG_AS_PATH_UNCHANGED) |
3518f352 DS |
7303 | || (safi != SAFI_EVPN |
7304 | && peer_af_flag_check(peer, afi, safi, | |
7305 | PEER_FLAG_NEXTHOP_UNCHANGED)) | |
a4d82a8a PZ |
7306 | || peer_af_flag_check(peer, afi, safi, PEER_FLAG_MED_UNCHANGED)) { |
7307 | ||
7308 | if (!peer_group_active(peer) | |
7309 | || peergroup_af_flag_check(peer, afi, safi, | |
7310 | PEER_FLAG_AS_PATH_UNCHANGED) | |
7311 | || peergroup_af_flag_check(peer, afi, safi, | |
7312 | PEER_FLAG_NEXTHOP_UNCHANGED) | |
7313 | || peergroup_af_flag_check(peer, afi, safi, | |
7314 | PEER_FLAG_MED_UNCHANGED)) { | |
8eeb0335 | 7315 | |
2b791107 | 7316 | vty_out(vty, |
d62a17ae | 7317 | " neighbor %s attribute-unchanged%s%s%s\n", |
7318 | addr, | |
60466a63 QY |
7319 | peer_af_flag_check(peer, afi, safi, |
7320 | PEER_FLAG_AS_PATH_UNCHANGED) | |
d62a17ae | 7321 | ? " as-path" |
7322 | : "", | |
60466a63 QY |
7323 | peer_af_flag_check(peer, afi, safi, |
7324 | PEER_FLAG_NEXTHOP_UNCHANGED) | |
d62a17ae | 7325 | ? " next-hop" |
7326 | : "", | |
8eeb0335 DW |
7327 | peer_af_flag_check(peer, afi, safi, |
7328 | PEER_FLAG_MED_UNCHANGED) | |
d62a17ae | 7329 | ? " med" |
7330 | : ""); | |
7331 | } | |
7332 | } | |
718e3744 | 7333 | } |
7334 | ||
2b791107 DL |
7335 | /* Address family based peer configuration display. */ |
7336 | static void bgp_config_write_family(struct vty *vty, struct bgp *bgp, afi_t afi, | |
7337 | safi_t safi) | |
d62a17ae | 7338 | { |
2b791107 DL |
7339 | struct peer *peer; |
7340 | struct peer_group *group; | |
7341 | struct listnode *node, *nnode; | |
d62a17ae | 7342 | |
d62a17ae | 7343 | |
2b791107 | 7344 | vty_frame(vty, " !\n address-family "); |
d62a17ae | 7345 | if (afi == AFI_IP) { |
7346 | if (safi == SAFI_UNICAST) | |
2b791107 | 7347 | vty_frame(vty, "ipv4 unicast"); |
d62a17ae | 7348 | else if (safi == SAFI_LABELED_UNICAST) |
2b791107 | 7349 | vty_frame(vty, "ipv4 labeled-unicast"); |
d62a17ae | 7350 | else if (safi == SAFI_MULTICAST) |
2b791107 | 7351 | vty_frame(vty, "ipv4 multicast"); |
d62a17ae | 7352 | else if (safi == SAFI_MPLS_VPN) |
2b791107 | 7353 | vty_frame(vty, "ipv4 vpn"); |
d62a17ae | 7354 | else if (safi == SAFI_ENCAP) |
2b791107 | 7355 | vty_frame(vty, "ipv4 encap"); |
7c40bf39 | 7356 | else if (safi == SAFI_FLOWSPEC) |
7357 | vty_frame(vty, "ipv4 flowspec"); | |
d62a17ae | 7358 | } else if (afi == AFI_IP6) { |
7359 | if (safi == SAFI_UNICAST) | |
2b791107 | 7360 | vty_frame(vty, "ipv6 unicast"); |
d62a17ae | 7361 | else if (safi == SAFI_LABELED_UNICAST) |
2b791107 | 7362 | vty_frame(vty, "ipv6 labeled-unicast"); |
d62a17ae | 7363 | else if (safi == SAFI_MULTICAST) |
2b791107 | 7364 | vty_frame(vty, "ipv6 multicast"); |
d62a17ae | 7365 | else if (safi == SAFI_MPLS_VPN) |
2b791107 | 7366 | vty_frame(vty, "ipv6 vpn"); |
d62a17ae | 7367 | else if (safi == SAFI_ENCAP) |
2b791107 | 7368 | vty_frame(vty, "ipv6 encap"); |
7c40bf39 | 7369 | else if (safi == SAFI_FLOWSPEC) |
7370 | vty_frame(vty, "ipv6 flowspec"); | |
d62a17ae | 7371 | } else if (afi == AFI_L2VPN) { |
7372 | if (safi == SAFI_EVPN) | |
2b791107 | 7373 | vty_frame(vty, "l2vpn evpn"); |
d62a17ae | 7374 | } |
2b791107 | 7375 | vty_frame(vty, "\n"); |
718e3744 | 7376 | |
2b791107 | 7377 | bgp_config_write_distance(vty, bgp, afi, safi); |
718e3744 | 7378 | |
2b791107 | 7379 | bgp_config_write_network(vty, bgp, afi, safi); |
734b349e | 7380 | |
2b791107 | 7381 | bgp_config_write_redistribute(vty, bgp, afi, safi); |
718e3744 | 7382 | |
d62a17ae | 7383 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) |
2b791107 | 7384 | bgp_config_write_peer_af(vty, bgp, group->conf, afi, safi); |
400b1fad | 7385 | |
d62a17ae | 7386 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { |
7387 | /* Skip dynamic neighbors. */ | |
7388 | if (peer_dynamic_neighbor(peer)) | |
7389 | continue; | |
f14e6fdb | 7390 | |
d62a17ae | 7391 | /* Do not display doppelganger peers */ |
7392 | if (CHECK_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE)) | |
2b791107 | 7393 | bgp_config_write_peer_af(vty, bgp, peer, afi, safi); |
d62a17ae | 7394 | } |
165b5fff | 7395 | |
2b791107 DL |
7396 | bgp_config_write_maxpaths(vty, bgp, afi, safi); |
7397 | bgp_config_write_table_map(vty, bgp, afi, safi); | |
165b5fff | 7398 | |
d62a17ae | 7399 | if (safi == SAFI_EVPN) |
2b791107 | 7400 | bgp_config_write_evpn_info(vty, bgp, afi, safi); |
718e3744 | 7401 | |
4762c213 PG |
7402 | if (safi == SAFI_FLOWSPEC) |
7403 | bgp_fs_config_write_pbr(vty, bgp, afi, safi); | |
7404 | ||
b9c7bc5a PZ |
7405 | if (safi == SAFI_UNICAST) { |
7406 | bgp_vpn_policy_config_write_afi(vty, bgp, afi); | |
7407 | if (CHECK_FLAG(bgp->af_flags[afi][safi], | |
7408 | BGP_CONFIG_VRF_TO_MPLSVPN_EXPORT)) { | |
ddb5b488 | 7409 | |
b9c7bc5a PZ |
7410 | vty_out(vty, " export vpn\n"); |
7411 | } | |
7412 | if (CHECK_FLAG(bgp->af_flags[afi][safi], | |
7413 | BGP_CONFIG_MPLSVPN_TO_VRF_IMPORT)) { | |
7414 | ||
7415 | vty_out(vty, " import vpn\n"); | |
7416 | } | |
12a844a5 DS |
7417 | if (CHECK_FLAG(bgp->af_flags[afi][safi], |
7418 | BGP_CONFIG_VRF_TO_VRF_IMPORT)) { | |
12a844a5 DS |
7419 | char *name; |
7420 | ||
7421 | for (ALL_LIST_ELEMENTS_RO( | |
7422 | bgp->vpn_policy[afi].import_vrf, node, | |
7423 | name)) | |
7424 | vty_out(vty, " import vrf %s\n", name); | |
7425 | } | |
ddb5b488 PZ |
7426 | } |
7427 | ||
2b791107 | 7428 | vty_endframe(vty, " exit-address-family\n"); |
718e3744 | 7429 | } |
7430 | ||
47cbc09b | 7431 | /* clang-format off */ |
ec4f0750 | 7432 | #if CONFDATE > 20190517 |
47cbc09b PM |
7433 | CPP_NOTICE("bgpd: remove 'bgp enforce-first-as' config migration from bgp_config_write") |
7434 | #endif | |
7435 | /* clang-format on */ | |
7436 | ||
d62a17ae | 7437 | int bgp_config_write(struct vty *vty) |
718e3744 | 7438 | { |
d62a17ae | 7439 | int write = 0; |
7440 | struct bgp *bgp; | |
7441 | struct peer_group *group; | |
7442 | struct peer *peer; | |
7443 | struct listnode *node, *nnode; | |
7444 | struct listnode *mnode, *mnnode; | |
718e3744 | 7445 | |
d62a17ae | 7446 | /* BGP Multiple instance. */ |
7447 | if (!bgp_option_check(BGP_OPT_MULTIPLE_INSTANCE)) { | |
7448 | vty_out(vty, "no bgp multiple-instance\n"); | |
7449 | write++; | |
7450 | } | |
718e3744 | 7451 | |
d62a17ae | 7452 | /* BGP Config type. */ |
7453 | if (bgp_option_check(BGP_OPT_CONFIG_CISCO)) { | |
7454 | vty_out(vty, "bgp config-type cisco\n"); | |
7455 | write++; | |
7456 | } | |
718e3744 | 7457 | |
d62a17ae | 7458 | if (bm->rmap_update_timer != RMAP_DEFAULT_UPDATE_TIMER) |
7459 | vty_out(vty, "bgp route-map delay-timer %u\n", | |
7460 | bm->rmap_update_timer); | |
7461 | ||
2b791107 DL |
7462 | if (write) |
7463 | vty_out(vty, "!\n"); | |
7464 | ||
d62a17ae | 7465 | /* BGP configuration. */ |
7466 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
0b5131c9 MK |
7467 | |
7468 | /* skip all auto created vrf as they dont have user config */ | |
7469 | if (CHECK_FLAG(bgp->vrf_flags, BGP_VRF_AUTO)) | |
7470 | continue; | |
7471 | ||
47cbc09b PM |
7472 | /* Migrate deprecated 'bgp enforce-first-as' |
7473 | * config to 'neighbor * enforce-first-as' configs | |
7474 | */ | |
7475 | if (bgp_flag_check(bgp, BGP_FLAG_ENFORCE_FIRST_AS)) { | |
7476 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
7477 | peer_flag_set(peer, PEER_FLAG_ENFORCE_FIRST_AS); | |
7478 | bgp_flag_unset(bgp, BGP_FLAG_ENFORCE_FIRST_AS); | |
7479 | } | |
7480 | ||
d62a17ae | 7481 | /* Router bgp ASN */ |
7482 | vty_out(vty, "router bgp %u", bgp->as); | |
7483 | ||
7484 | if (bgp_option_check(BGP_OPT_MULTIPLE_INSTANCE)) { | |
7485 | if (bgp->name) | |
7486 | vty_out(vty, " %s %s", | |
7487 | (bgp->inst_type | |
7488 | == BGP_INSTANCE_TYPE_VIEW) | |
7489 | ? "view" | |
7490 | : "vrf", | |
7491 | bgp->name); | |
7492 | } | |
7493 | vty_out(vty, "\n"); | |
7494 | ||
7495 | /* No Synchronization */ | |
7496 | if (bgp_option_check(BGP_OPT_CONFIG_CISCO)) | |
7497 | vty_out(vty, " no synchronization\n"); | |
7498 | ||
7499 | /* BGP fast-external-failover. */ | |
7500 | if (CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) | |
7501 | vty_out(vty, " no bgp fast-external-failover\n"); | |
7502 | ||
7503 | /* BGP router ID. */ | |
7504 | if (bgp->router_id_static.s_addr != 0) | |
7505 | vty_out(vty, " bgp router-id %s\n", | |
7506 | inet_ntoa(bgp->router_id_static)); | |
7507 | ||
7508 | /* BGP log-neighbor-changes. */ | |
7509 | if (!!bgp_flag_check(bgp, BGP_FLAG_LOG_NEIGHBOR_CHANGES) | |
7510 | != DFLT_BGP_LOG_NEIGHBOR_CHANGES) | |
7511 | vty_out(vty, " %sbgp log-neighbor-changes\n", | |
7512 | bgp_flag_check(bgp, | |
7513 | BGP_FLAG_LOG_NEIGHBOR_CHANGES) | |
7514 | ? "" | |
7515 | : "no "); | |
7516 | ||
7517 | /* BGP configuration. */ | |
7518 | if (bgp_flag_check(bgp, BGP_FLAG_ALWAYS_COMPARE_MED)) | |
7519 | vty_out(vty, " bgp always-compare-med\n"); | |
7520 | ||
7521 | /* BGP default ipv4-unicast. */ | |
7522 | if (bgp_flag_check(bgp, BGP_FLAG_NO_DEFAULT_IPV4)) | |
7523 | vty_out(vty, " no bgp default ipv4-unicast\n"); | |
7524 | ||
7525 | /* BGP default local-preference. */ | |
7526 | if (bgp->default_local_pref != BGP_DEFAULT_LOCAL_PREF) | |
7527 | vty_out(vty, " bgp default local-preference %u\n", | |
7528 | bgp->default_local_pref); | |
7529 | ||
7530 | /* BGP default show-hostname */ | |
7531 | if (!!bgp_flag_check(bgp, BGP_FLAG_SHOW_HOSTNAME) | |
7532 | != DFLT_BGP_SHOW_HOSTNAME) | |
7533 | vty_out(vty, " %sbgp default show-hostname\n", | |
7534 | bgp_flag_check(bgp, BGP_FLAG_SHOW_HOSTNAME) | |
7535 | ? "" | |
7536 | : "no "); | |
7537 | ||
7538 | /* BGP default subgroup-pkt-queue-max. */ | |
7539 | if (bgp->default_subgroup_pkt_queue_max | |
7540 | != BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX) | |
7541 | vty_out(vty, " bgp default subgroup-pkt-queue-max %u\n", | |
7542 | bgp->default_subgroup_pkt_queue_max); | |
7543 | ||
7544 | /* BGP client-to-client reflection. */ | |
7545 | if (bgp_flag_check(bgp, BGP_FLAG_NO_CLIENT_TO_CLIENT)) | |
7546 | vty_out(vty, " no bgp client-to-client reflection\n"); | |
7547 | ||
7548 | /* BGP cluster ID. */ | |
7549 | if (CHECK_FLAG(bgp->config, BGP_CONFIG_CLUSTER_ID)) | |
7550 | vty_out(vty, " bgp cluster-id %s\n", | |
7551 | inet_ntoa(bgp->cluster_id)); | |
7552 | ||
7553 | /* Disable ebgp connected nexthop check */ | |
7554 | if (bgp_flag_check(bgp, BGP_FLAG_DISABLE_NH_CONNECTED_CHK)) | |
7555 | vty_out(vty, | |
7556 | " bgp disable-ebgp-connected-route-check\n"); | |
7557 | ||
7558 | /* Confederation identifier*/ | |
7559 | if (CHECK_FLAG(bgp->config, BGP_CONFIG_CONFEDERATION)) | |
3c195d60 | 7560 | vty_out(vty, " bgp confederation identifier %u\n", |
d62a17ae | 7561 | bgp->confed_id); |
7562 | ||
7563 | /* Confederation peer */ | |
7564 | if (bgp->confed_peers_cnt > 0) { | |
7565 | int i; | |
7566 | ||
7567 | vty_out(vty, " bgp confederation peers"); | |
7568 | ||
7569 | for (i = 0; i < bgp->confed_peers_cnt; i++) | |
7570 | vty_out(vty, " %u", bgp->confed_peers[i]); | |
7571 | ||
7572 | vty_out(vty, "\n"); | |
7573 | } | |
5fe9f963 | 7574 | |
d62a17ae | 7575 | /* BGP deterministic-med. */ |
7576 | if (!!bgp_flag_check(bgp, BGP_FLAG_DETERMINISTIC_MED) | |
7577 | != DFLT_BGP_DETERMINISTIC_MED) | |
7578 | vty_out(vty, " %sbgp deterministic-med\n", | |
7579 | bgp_flag_check(bgp, BGP_FLAG_DETERMINISTIC_MED) | |
7580 | ? "" | |
7581 | : "no "); | |
7582 | ||
7583 | /* BGP update-delay. */ | |
7584 | bgp_config_write_update_delay(vty, bgp); | |
7585 | ||
7586 | if (bgp->v_maxmed_onstartup | |
7587 | != BGP_MAXMED_ONSTARTUP_UNCONFIGURED) { | |
7588 | vty_out(vty, " bgp max-med on-startup %u", | |
7589 | bgp->v_maxmed_onstartup); | |
7590 | if (bgp->maxmed_onstartup_value | |
7591 | != BGP_MAXMED_VALUE_DEFAULT) | |
7592 | vty_out(vty, " %u", | |
7593 | bgp->maxmed_onstartup_value); | |
7594 | vty_out(vty, "\n"); | |
7595 | } | |
7596 | if (bgp->v_maxmed_admin != BGP_MAXMED_ADMIN_UNCONFIGURED) { | |
7597 | vty_out(vty, " bgp max-med administrative"); | |
7598 | if (bgp->maxmed_admin_value != BGP_MAXMED_VALUE_DEFAULT) | |
7599 | vty_out(vty, " %u", bgp->maxmed_admin_value); | |
7600 | vty_out(vty, "\n"); | |
7601 | } | |
718e3744 | 7602 | |
d62a17ae | 7603 | /* write quanta */ |
7604 | bgp_config_write_wpkt_quanta(vty, bgp); | |
555e09d4 QY |
7605 | /* read quanta */ |
7606 | bgp_config_write_rpkt_quanta(vty, bgp); | |
d62a17ae | 7607 | |
7608 | /* coalesce time */ | |
7609 | bgp_config_write_coalesce_time(vty, bgp); | |
7610 | ||
7611 | /* BGP graceful-restart. */ | |
7612 | if (bgp->stalepath_time != BGP_DEFAULT_STALEPATH_TIME) | |
7613 | vty_out(vty, | |
7614 | " bgp graceful-restart stalepath-time %u\n", | |
7615 | bgp->stalepath_time); | |
7616 | if (bgp->restart_time != BGP_DEFAULT_RESTART_TIME) | |
7617 | vty_out(vty, " bgp graceful-restart restart-time %u\n", | |
7618 | bgp->restart_time); | |
7619 | if (bgp_flag_check(bgp, BGP_FLAG_GRACEFUL_RESTART)) | |
7620 | vty_out(vty, " bgp graceful-restart\n"); | |
7621 | ||
7f323236 DW |
7622 | /* BGP graceful-shutdown */ |
7623 | if (bgp_flag_check(bgp, BGP_FLAG_GRACEFUL_SHUTDOWN)) | |
7624 | vty_out(vty, " bgp graceful-shutdown\n"); | |
7625 | ||
d62a17ae | 7626 | /* BGP graceful-restart Preserve State F bit. */ |
7627 | if (bgp_flag_check(bgp, BGP_FLAG_GR_PRESERVE_FWD)) | |
7628 | vty_out(vty, | |
7629 | " bgp graceful-restart preserve-fw-state\n"); | |
7630 | ||
7631 | /* BGP bestpath method. */ | |
7632 | if (bgp_flag_check(bgp, BGP_FLAG_ASPATH_IGNORE)) | |
7633 | vty_out(vty, " bgp bestpath as-path ignore\n"); | |
7634 | if (bgp_flag_check(bgp, BGP_FLAG_ASPATH_CONFED)) | |
7635 | vty_out(vty, " bgp bestpath as-path confed\n"); | |
7636 | ||
7637 | if (bgp_flag_check(bgp, BGP_FLAG_ASPATH_MULTIPATH_RELAX)) { | |
7638 | if (bgp_flag_check(bgp, | |
7639 | BGP_FLAG_MULTIPATH_RELAX_AS_SET)) { | |
7640 | vty_out(vty, | |
7641 | " bgp bestpath as-path multipath-relax as-set\n"); | |
7642 | } else { | |
7643 | vty_out(vty, | |
7644 | " bgp bestpath as-path multipath-relax\n"); | |
7645 | } | |
7646 | } | |
718e3744 | 7647 | |
d62a17ae | 7648 | if (bgp_flag_check(bgp, BGP_FLAG_RR_ALLOW_OUTBOUND_POLICY)) { |
7649 | vty_out(vty, | |
7650 | " bgp route-reflector allow-outbound-policy\n"); | |
7651 | } | |
7652 | if (bgp_flag_check(bgp, BGP_FLAG_COMPARE_ROUTER_ID)) | |
7653 | vty_out(vty, " bgp bestpath compare-routerid\n"); | |
7654 | if (bgp_flag_check(bgp, BGP_FLAG_MED_CONFED) | |
7655 | || bgp_flag_check(bgp, BGP_FLAG_MED_MISSING_AS_WORST)) { | |
7656 | vty_out(vty, " bgp bestpath med"); | |
7657 | if (bgp_flag_check(bgp, BGP_FLAG_MED_CONFED)) | |
7658 | vty_out(vty, " confed"); | |
7659 | if (bgp_flag_check(bgp, BGP_FLAG_MED_MISSING_AS_WORST)) | |
7660 | vty_out(vty, " missing-as-worst"); | |
7661 | vty_out(vty, "\n"); | |
7662 | } | |
718e3744 | 7663 | |
d62a17ae | 7664 | /* BGP network import check. */ |
7665 | if (!!bgp_flag_check(bgp, BGP_FLAG_IMPORT_CHECK) | |
7666 | != DFLT_BGP_IMPORT_CHECK) | |
7667 | vty_out(vty, " %sbgp network import-check\n", | |
7668 | bgp_flag_check(bgp, BGP_FLAG_IMPORT_CHECK) | |
7669 | ? "" | |
7670 | : "no "); | |
7671 | ||
7672 | /* BGP flag dampening. */ | |
7673 | if (CHECK_FLAG(bgp->af_flags[AFI_IP][SAFI_UNICAST], | |
7674 | BGP_CONFIG_DAMPENING)) | |
7675 | bgp_config_write_damp(vty); | |
7676 | ||
7677 | /* BGP timers configuration. */ | |
7678 | if (bgp->default_keepalive != BGP_DEFAULT_KEEPALIVE | |
7679 | && bgp->default_holdtime != BGP_DEFAULT_HOLDTIME) | |
7680 | vty_out(vty, " timers bgp %u %u\n", | |
7681 | bgp->default_keepalive, bgp->default_holdtime); | |
7682 | ||
7683 | /* peer-group */ | |
7684 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
7685 | bgp_config_write_peer_global(vty, bgp, group->conf); | |
7686 | } | |
7687 | ||
7688 | /* Normal neighbor configuration. */ | |
7689 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
7690 | if (CHECK_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE)) | |
7691 | bgp_config_write_peer_global(vty, bgp, peer); | |
7692 | } | |
718e3744 | 7693 | |
d62a17ae | 7694 | /* listen range and limit for dynamic BGP neighbors */ |
7695 | bgp_config_write_listen(vty, bgp); | |
f14e6fdb | 7696 | |
76af525b PM |
7697 | /* |
7698 | * BGP default autoshutdown neighbors | |
7699 | * | |
7700 | * This must be placed after any peer and peer-group | |
7701 | * configuration, to avoid setting all peers to shutdown after | |
7702 | * a daemon restart, which is undesired behavior. (see #2286) | |
7703 | */ | |
7704 | if (bgp->autoshutdown) | |
7705 | vty_out(vty, " bgp default shutdown\n"); | |
7706 | ||
d62a17ae | 7707 | /* No auto-summary */ |
7708 | if (bgp_option_check(BGP_OPT_CONFIG_CISCO)) | |
7709 | vty_out(vty, " no auto-summary\n"); | |
718e3744 | 7710 | |
d62a17ae | 7711 | /* IPv4 unicast configuration. */ |
2b791107 | 7712 | bgp_config_write_family(vty, bgp, AFI_IP, SAFI_UNICAST); |
0b960b4d | 7713 | |
d62a17ae | 7714 | /* IPv4 multicast configuration. */ |
2b791107 | 7715 | bgp_config_write_family(vty, bgp, AFI_IP, SAFI_MULTICAST); |
718e3744 | 7716 | |
d62a17ae | 7717 | /* IPv4 labeled-unicast configuration. */ |
2b791107 | 7718 | bgp_config_write_family(vty, bgp, AFI_IP, SAFI_LABELED_UNICAST); |
f51bae9c | 7719 | |
d62a17ae | 7720 | /* IPv4 VPN configuration. */ |
2b791107 | 7721 | bgp_config_write_family(vty, bgp, AFI_IP, SAFI_MPLS_VPN); |
718e3744 | 7722 | |
d62a17ae | 7723 | /* ENCAPv4 configuration. */ |
2b791107 | 7724 | bgp_config_write_family(vty, bgp, AFI_IP, SAFI_ENCAP); |
8b1fb8be | 7725 | |
7c40bf39 | 7726 | /* FLOWSPEC v4 configuration. */ |
7727 | bgp_config_write_family(vty, bgp, AFI_IP, SAFI_FLOWSPEC); | |
7728 | ||
d62a17ae | 7729 | /* IPv6 unicast configuration. */ |
2b791107 | 7730 | bgp_config_write_family(vty, bgp, AFI_IP6, SAFI_UNICAST); |
718e3744 | 7731 | |
d62a17ae | 7732 | /* IPv6 multicast configuration. */ |
2b791107 | 7733 | bgp_config_write_family(vty, bgp, AFI_IP6, SAFI_MULTICAST); |
37a217a5 | 7734 | |
d62a17ae | 7735 | /* IPv6 labeled-unicast configuration. */ |
2b791107 DL |
7736 | bgp_config_write_family(vty, bgp, AFI_IP6, |
7737 | SAFI_LABELED_UNICAST); | |
f51bae9c | 7738 | |
d62a17ae | 7739 | /* IPv6 VPN configuration. */ |
2b791107 | 7740 | bgp_config_write_family(vty, bgp, AFI_IP6, SAFI_MPLS_VPN); |
8ecd3266 | 7741 | |
d62a17ae | 7742 | /* ENCAPv6 configuration. */ |
2b791107 | 7743 | bgp_config_write_family(vty, bgp, AFI_IP6, SAFI_ENCAP); |
8b1fb8be | 7744 | |
7c40bf39 | 7745 | /* FLOWSPEC v6 configuration. */ |
7746 | bgp_config_write_family(vty, bgp, AFI_IP6, SAFI_FLOWSPEC); | |
7747 | ||
d62a17ae | 7748 | /* EVPN configuration. */ |
2b791107 | 7749 | bgp_config_write_family(vty, bgp, AFI_L2VPN, SAFI_EVPN); |
3d6c0dfa | 7750 | |
65efcfce | 7751 | #if ENABLE_BGP_VNC |
2b791107 | 7752 | bgp_rfapi_cfg_write(vty, bgp); |
65efcfce LB |
7753 | #endif |
7754 | ||
2b791107 | 7755 | vty_out(vty, "!\n"); |
d62a17ae | 7756 | } |
2b791107 | 7757 | return 0; |
718e3744 | 7758 | } |
7759 | ||
d62a17ae | 7760 | void bgp_master_init(struct thread_master *master) |
718e3744 | 7761 | { |
d62a17ae | 7762 | qobj_init(); |
0e64d123 | 7763 | |
d62a17ae | 7764 | memset(&bgp_master, 0, sizeof(struct bgp_master)); |
718e3744 | 7765 | |
d62a17ae | 7766 | bm = &bgp_master; |
7767 | bm->bgp = list_new(); | |
7768 | bm->listen_sockets = list_new(); | |
7769 | bm->port = BGP_PORT_DEFAULT; | |
7770 | bm->master = master; | |
7771 | bm->start_time = bgp_clock(); | |
7772 | bm->t_rmap_update = NULL; | |
7773 | bm->rmap_update_timer = RMAP_DEFAULT_UPDATE_TIMER; | |
97b4a0ec | 7774 | bm->terminating = false; |
495f0b13 | 7775 | |
d62a17ae | 7776 | bgp_process_queue_init(); |
b8fd6a15 | 7777 | |
e9eb5f63 | 7778 | /* init the rd id space. |
7779 | assign 0th index in the bitfield, | |
523cafc4 | 7780 | so that we start with id 1 |
7781 | */ | |
e9eb5f63 | 7782 | bf_init(bm->rd_idspace, UINT16_MAX); |
7783 | bf_assign_zero_index(bm->rd_idspace); | |
7784 | ||
d62a17ae | 7785 | /* Enable multiple instances by default. */ |
7786 | bgp_option_set(BGP_OPT_MULTIPLE_INSTANCE); | |
19df7279 | 7787 | |
955bfd98 | 7788 | /* mpls label dynamic allocation pool */ |
e70e9f8e | 7789 | bgp_lp_init(bm->master, &bm->labelpool); |
955bfd98 | 7790 | |
d62a17ae | 7791 | QOBJ_REG(bm, bgp_master); |
718e3744 | 7792 | } |
200df115 | 7793 | |
ad4cbda1 | 7794 | /* |
009b18fc | 7795 | * Free up connected routes and interfaces for a BGP instance. Invoked upon |
7796 | * instance delete (non-default only) or BGP exit. | |
ad4cbda1 | 7797 | */ |
d62a17ae | 7798 | static void bgp_if_finish(struct bgp *bgp) |
ad4cbda1 | 7799 | { |
f4e14fdb | 7800 | struct vrf *vrf = vrf_lookup_by_id(bgp->vrf_id); |
d62a17ae | 7801 | struct interface *ifp; |
7802 | ||
f4e14fdb | 7803 | if (bgp->inst_type == BGP_INSTANCE_TYPE_VIEW || !vrf) |
d62a17ae | 7804 | return; |
ad4cbda1 | 7805 | |
451fda4f | 7806 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 7807 | struct listnode *c_node, *c_nnode; |
7808 | struct connected *c; | |
ad4cbda1 | 7809 | |
d62a17ae | 7810 | for (ALL_LIST_ELEMENTS(ifp->connected, c_node, c_nnode, c)) |
7811 | bgp_connected_delete(bgp, c); | |
7812 | } | |
ad4cbda1 | 7813 | } |
6b0655a2 | 7814 | |
d62a17ae | 7815 | static void bgp_viewvrf_autocomplete(vector comps, struct cmd_token *token) |
18c57037 | 7816 | { |
d62a17ae | 7817 | struct vrf *vrf = NULL; |
7818 | struct listnode *next; | |
7819 | struct bgp *bgp; | |
18c57037 | 7820 | |
6a8ca00f PG |
7821 | RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) |
7822 | vector_set(comps, XSTRDUP(MTYPE_COMPLETION, vrf->name)); | |
18c57037 | 7823 | |
d62a17ae | 7824 | for (ALL_LIST_ELEMENTS_RO(bm->bgp, next, bgp)) { |
7825 | if (bgp->inst_type != BGP_INSTANCE_TYPE_VIEW) | |
7826 | continue; | |
18c57037 | 7827 | |
d62a17ae | 7828 | vector_set(comps, XSTRDUP(MTYPE_COMPLETION, bgp->name)); |
7829 | } | |
18c57037 DS |
7830 | } |
7831 | ||
7832 | static const struct cmd_variable_handler bgp_viewvrf_var_handlers[] = { | |
d62a17ae | 7833 | {.tokenname = "VIEWVRFNAME", .completions = bgp_viewvrf_autocomplete}, |
7834 | {.completions = NULL}, | |
18c57037 DS |
7835 | }; |
7836 | ||
1ac267a2 DL |
7837 | struct frr_pthread *bgp_pth_io; |
7838 | struct frr_pthread *bgp_pth_ka; | |
7839 | ||
da22432d | 7840 | static void bgp_pthreads_init() |
2d4ee774 | 7841 | { |
1ac267a2 DL |
7842 | assert(!bgp_pth_io); |
7843 | assert(!bgp_pth_ka); | |
7844 | ||
0ca8b79f QY |
7845 | frr_pthread_init(); |
7846 | ||
a715eab3 | 7847 | struct frr_pthread_attr io = { |
a715eab3 QY |
7848 | .start = frr_pthread_attr_default.start, |
7849 | .stop = frr_pthread_attr_default.stop, | |
a715eab3 QY |
7850 | }; |
7851 | struct frr_pthread_attr ka = { | |
a715eab3 QY |
7852 | .start = bgp_keepalives_start, |
7853 | .stop = bgp_keepalives_stop, | |
a715eab3 | 7854 | }; |
1ac267a2 DL |
7855 | bgp_pth_io = frr_pthread_new(&io, "BGP I/O thread", "bgpd_io"); |
7856 | bgp_pth_ka = frr_pthread_new(&ka, "BGP Keepalives thread", "bgpd_ka"); | |
419dfe6a QY |
7857 | } |
7858 | ||
7859 | void bgp_pthreads_run() | |
7860 | { | |
1ac267a2 DL |
7861 | frr_pthread_run(bgp_pth_io, NULL); |
7862 | frr_pthread_run(bgp_pth_ka, NULL); | |
88b24dee | 7863 | |
a715eab3 | 7864 | /* Wait until threads are ready. */ |
1ac267a2 DL |
7865 | frr_pthread_wait_running(bgp_pth_io); |
7866 | frr_pthread_wait_running(bgp_pth_ka); | |
2d4ee774 QY |
7867 | } |
7868 | ||
7869 | void bgp_pthreads_finish() | |
7870 | { | |
0ca8b79f QY |
7871 | frr_pthread_stop_all(); |
7872 | frr_pthread_finish(); | |
2d4ee774 QY |
7873 | } |
7874 | ||
f533be73 | 7875 | void bgp_init(unsigned short instance) |
718e3744 | 7876 | { |
fc9a856f | 7877 | |
d62a17ae | 7878 | /* allocates some vital data structures used by peer commands in |
7879 | * vty_init */ | |
718e3744 | 7880 | |
419dfe6a QY |
7881 | /* pre-init pthreads */ |
7882 | bgp_pthreads_init(); | |
7883 | ||
d62a17ae | 7884 | /* Init zebra. */ |
f533be73 | 7885 | bgp_zebra_init(bm->master, instance); |
718e3744 | 7886 | |
65efcfce | 7887 | #if ENABLE_BGP_VNC |
d62a17ae | 7888 | vnc_zebra_init(bm->master); |
65efcfce LB |
7889 | #endif |
7890 | ||
d62a17ae | 7891 | /* BGP VTY commands installation. */ |
7892 | bgp_vty_init(); | |
7893 | ||
7894 | /* BGP inits. */ | |
7895 | bgp_attr_init(); | |
7896 | bgp_debug_init(); | |
7897 | bgp_dump_init(); | |
7898 | bgp_route_init(); | |
7899 | bgp_route_map_init(); | |
7900 | bgp_scan_vty_init(); | |
7901 | bgp_mplsvpn_init(); | |
65efcfce | 7902 | #if ENABLE_BGP_VNC |
d62a17ae | 7903 | rfapi_init(); |
65efcfce | 7904 | #endif |
d62a17ae | 7905 | bgp_ethernetvpn_init(); |
7c40bf39 | 7906 | bgp_flowspec_vty_init(); |
d62a17ae | 7907 | |
7908 | /* Access list initialize. */ | |
7909 | access_list_init(); | |
7910 | access_list_add_hook(peer_distribute_update); | |
7911 | access_list_delete_hook(peer_distribute_update); | |
7912 | ||
7913 | /* Filter list initialize. */ | |
7914 | bgp_filter_init(); | |
7915 | as_list_add_hook(peer_aslist_add); | |
7916 | as_list_delete_hook(peer_aslist_del); | |
7917 | ||
7918 | /* Prefix list initialize.*/ | |
7919 | prefix_list_init(); | |
7920 | prefix_list_add_hook(peer_prefix_list_update); | |
7921 | prefix_list_delete_hook(peer_prefix_list_update); | |
7922 | ||
7923 | /* Community list initialize. */ | |
7924 | bgp_clist = community_list_init(); | |
7925 | ||
7926 | /* BFD init */ | |
7927 | bgp_bfd_init(); | |
7928 | ||
7929 | cmd_variable_handler_register(bgp_viewvrf_var_handlers); | |
7930 | } | |
7931 | ||
7932 | void bgp_terminate(void) | |
7933 | { | |
7934 | struct bgp *bgp; | |
7935 | struct peer *peer; | |
7936 | struct listnode *node, *nnode; | |
7937 | struct listnode *mnode, *mnnode; | |
7938 | ||
7939 | QOBJ_UNREG(bm); | |
7940 | ||
7941 | /* Close the listener sockets first as this prevents peers from | |
7942 | * attempting | |
7943 | * to reconnect on receiving the peer unconfig message. In the presence | |
7944 | * of a large number of peers this will ensure that no peer is left with | |
7945 | * a dangling connection | |
7946 | */ | |
7947 | /* reverse bgp_master_init */ | |
7948 | bgp_close(); | |
c3004bc4 | 7949 | |
d62a17ae | 7950 | if (bm->listen_sockets) |
6a154c88 | 7951 | list_delete(&bm->listen_sockets); |
d62a17ae | 7952 | |
7953 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) | |
7954 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
7955 | if (peer->status == Established | |
7956 | || peer->status == OpenSent | |
7957 | || peer->status == OpenConfirm) | |
7958 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
7959 | BGP_NOTIFY_CEASE_PEER_UNCONFIG); | |
7960 | ||
e208c8f9 DS |
7961 | if (bm->process_main_queue) |
7962 | work_queue_free_and_null(&bm->process_main_queue); | |
d62a17ae | 7963 | |
7964 | if (bm->t_rmap_update) | |
7965 | BGP_TIMER_OFF(bm->t_rmap_update); | |
955bfd98 | 7966 | |
545acafb | 7967 | } |