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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" | |
55 | #include "bgpd/bgp_community.h" | |
56 | #include "bgpd/bgp_attr.h" | |
57 | #include "bgpd/bgp_regex.h" | |
58 | #include "bgpd/bgp_clist.h" | |
59 | #include "bgpd/bgp_fsm.h" | |
60 | #include "bgpd/bgp_packet.h" | |
61 | #include "bgpd/bgp_zebra.h" | |
62 | #include "bgpd/bgp_open.h" | |
63 | #include "bgpd/bgp_filter.h" | |
64 | #include "bgpd/bgp_nexthop.h" | |
65 | #include "bgpd/bgp_damp.h" | |
66 | #include "bgpd/bgp_mplsvpn.h" | |
65efcfce | 67 | #if ENABLE_BGP_VNC |
f8b6f499 LB |
68 | #include "bgpd/rfapi/bgp_rfapi_cfg.h" |
69 | #include "bgpd/rfapi/rfapi_backend.h" | |
65efcfce | 70 | #endif |
7ef5a232 | 71 | #include "bgpd/bgp_evpn.h" |
718e3744 | 72 | #include "bgpd/bgp_advertise.h" |
73 | #include "bgpd/bgp_network.h" | |
74 | #include "bgpd/bgp_vty.h" | |
165b5fff | 75 | #include "bgpd/bgp_mpath.h" |
fc9a856f | 76 | #include "bgpd/bgp_nht.h" |
3f9c7369 | 77 | #include "bgpd/bgp_updgrp.h" |
c43ed2e4 | 78 | #include "bgpd/bgp_bfd.h" |
4a1ab8e4 | 79 | #include "bgpd/bgp_memory.h" |
784d3a42 | 80 | #include "bgpd/bgp_evpn_vty.h" |
2d4ee774 | 81 | #include "bgpd/bgp_keepalives.h" |
56257a44 | 82 | #include "bgpd/bgp_io.h" |
41d6d607 | 83 | #include "bgpd/bgp_ecommunity.h" |
7c40bf39 | 84 | #include "bgpd/bgp_flowspec.h" |
955bfd98 | 85 | #include "bgpd/bgp_labelpool.h" |
f3d32faa | 86 | #include "bgpd/bgp_pbr.h" |
73d70fa6 DL |
87 | |
88 | DEFINE_MTYPE_STATIC(BGPD, PEER_TX_SHUTDOWN_MSG, "Peer shutdown message (TX)"); | |
19df7279 DL |
89 | DEFINE_QOBJ_TYPE(bgp_master) |
90 | DEFINE_QOBJ_TYPE(bgp) | |
91 | DEFINE_QOBJ_TYPE(peer) | |
92 | ||
718e3744 | 93 | /* BGP process wide configuration. */ |
94 | static struct bgp_master bgp_master; | |
95 | ||
96 | /* BGP process wide configuration pointer to export. */ | |
97 | struct bgp_master *bm; | |
98 | ||
99 | /* BGP community-list. */ | |
100 | struct community_list_handler *bgp_clist; | |
6b0655a2 | 101 | |
37fe7731 DS |
102 | unsigned int multipath_num = MULTIPATH_NUM; |
103 | ||
d62a17ae | 104 | static void bgp_if_finish(struct bgp *bgp); |
cc32742c | 105 | static void peer_drop_dynamic_neighbor(struct peer *peer); |
b33adb7c | 106 | |
ad4cbda1 | 107 | extern struct zclient *zclient; |
1ff9a340 | 108 | |
e5619c28 PG |
109 | /* handle main socket creation or deletion */ |
110 | static int bgp_check_main_socket(bool create, struct bgp *bgp) | |
111 | { | |
112 | static int bgp_server_main_created; | |
e5619c28 | 113 | |
e5619c28 PG |
114 | if (create == true) { |
115 | if (bgp_server_main_created) | |
116 | return 0; | |
117 | if (bgp_socket(bgp, bm->port, bm->address) < 0) | |
118 | return BGP_ERR_INVALID_VALUE; | |
119 | bgp_server_main_created = 1; | |
120 | return 0; | |
121 | } | |
122 | if (!bgp_server_main_created) | |
123 | return 0; | |
e5619c28 PG |
124 | bgp_close(); |
125 | bgp_server_main_created = 0; | |
126 | return 0; | |
127 | } | |
128 | ||
d62a17ae | 129 | void bgp_session_reset(struct peer *peer) |
1ff9a340 | 130 | { |
d62a17ae | 131 | if (peer->doppelganger && (peer->doppelganger->status != Deleted) |
132 | && !(CHECK_FLAG(peer->doppelganger->flags, PEER_FLAG_CONFIG_NODE))) | |
133 | peer_delete(peer->doppelganger); | |
1ff9a340 | 134 | |
d62a17ae | 135 | BGP_EVENT_ADD(peer, BGP_Stop); |
1ff9a340 DS |
136 | } |
137 | ||
138 | /* | |
139 | * During session reset, we may delete the doppelganger peer, which would | |
140 | * be the next node to the current node. If the session reset was invoked | |
141 | * during walk of peer list, we would end up accessing the freed next | |
142 | * node. This function moves the next node along. | |
143 | */ | |
d62a17ae | 144 | static void bgp_session_reset_safe(struct peer *peer, struct listnode **nnode) |
1ff9a340 | 145 | { |
d62a17ae | 146 | struct listnode *n; |
147 | struct peer *npeer; | |
1ff9a340 | 148 | |
d62a17ae | 149 | n = (nnode) ? *nnode : NULL; |
150 | npeer = (n) ? listgetdata(n) : NULL; | |
1ff9a340 | 151 | |
d62a17ae | 152 | if (peer->doppelganger && (peer->doppelganger->status != Deleted) |
153 | && !(CHECK_FLAG(peer->doppelganger->flags, | |
154 | PEER_FLAG_CONFIG_NODE))) { | |
155 | if (peer->doppelganger == npeer) | |
156 | /* nnode and *nnode are confirmed to be non-NULL here */ | |
157 | *nnode = (*nnode)->next; | |
158 | peer_delete(peer->doppelganger); | |
159 | } | |
1ff9a340 | 160 | |
d62a17ae | 161 | BGP_EVENT_ADD(peer, BGP_Stop); |
1ff9a340 DS |
162 | } |
163 | ||
718e3744 | 164 | /* BGP global flag manipulation. */ |
d62a17ae | 165 | int bgp_option_set(int flag) |
166 | { | |
167 | switch (flag) { | |
168 | case BGP_OPT_NO_FIB: | |
169 | case BGP_OPT_MULTIPLE_INSTANCE: | |
170 | case BGP_OPT_CONFIG_CISCO: | |
171 | case BGP_OPT_NO_LISTEN: | |
172 | SET_FLAG(bm->options, flag); | |
173 | break; | |
174 | default: | |
175 | return BGP_ERR_INVALID_FLAG; | |
176 | } | |
177 | return 0; | |
178 | } | |
179 | ||
180 | int bgp_option_unset(int flag) | |
181 | { | |
182 | switch (flag) { | |
183 | case BGP_OPT_MULTIPLE_INSTANCE: | |
184 | if (listcount(bm->bgp) > 1) | |
185 | return BGP_ERR_MULTIPLE_INSTANCE_USED; | |
186 | /* Fall through. */ | |
187 | case BGP_OPT_NO_FIB: | |
188 | case BGP_OPT_CONFIG_CISCO: | |
189 | UNSET_FLAG(bm->options, flag); | |
190 | break; | |
191 | default: | |
192 | return BGP_ERR_INVALID_FLAG; | |
193 | } | |
194 | return 0; | |
195 | } | |
196 | ||
197 | int bgp_option_check(int flag) | |
198 | { | |
199 | return CHECK_FLAG(bm->options, flag); | |
718e3744 | 200 | } |
6b0655a2 | 201 | |
718e3744 | 202 | /* BGP flag manipulation. */ |
d62a17ae | 203 | int bgp_flag_set(struct bgp *bgp, int flag) |
718e3744 | 204 | { |
d62a17ae | 205 | SET_FLAG(bgp->flags, flag); |
206 | return 0; | |
718e3744 | 207 | } |
208 | ||
d62a17ae | 209 | int bgp_flag_unset(struct bgp *bgp, int flag) |
718e3744 | 210 | { |
d62a17ae | 211 | UNSET_FLAG(bgp->flags, flag); |
212 | return 0; | |
718e3744 | 213 | } |
214 | ||
d62a17ae | 215 | int bgp_flag_check(struct bgp *bgp, int flag) |
718e3744 | 216 | { |
d62a17ae | 217 | return CHECK_FLAG(bgp->flags, flag); |
718e3744 | 218 | } |
6b0655a2 | 219 | |
718e3744 | 220 | /* Internal function to set BGP structure configureation flag. */ |
d62a17ae | 221 | static void bgp_config_set(struct bgp *bgp, int config) |
718e3744 | 222 | { |
d62a17ae | 223 | SET_FLAG(bgp->config, config); |
718e3744 | 224 | } |
225 | ||
d62a17ae | 226 | static void bgp_config_unset(struct bgp *bgp, int config) |
718e3744 | 227 | { |
d62a17ae | 228 | UNSET_FLAG(bgp->config, config); |
718e3744 | 229 | } |
230 | ||
d62a17ae | 231 | static int bgp_config_check(struct bgp *bgp, int config) |
718e3744 | 232 | { |
d62a17ae | 233 | return CHECK_FLAG(bgp->config, config); |
718e3744 | 234 | } |
6b0655a2 | 235 | |
718e3744 | 236 | /* Set BGP router identifier. */ |
d62a17ae | 237 | static int bgp_router_id_set(struct bgp *bgp, const struct in_addr *id) |
718e3744 | 238 | { |
d62a17ae | 239 | struct peer *peer; |
240 | struct listnode *node, *nnode; | |
718e3744 | 241 | |
d62a17ae | 242 | if (IPV4_ADDR_SAME(&bgp->router_id, id)) |
243 | return 0; | |
718e3744 | 244 | |
d62a17ae | 245 | /* EVPN uses router id in RD, withdraw them */ |
94c2f693 | 246 | if (is_evpn_enabled()) |
d62a17ae | 247 | bgp_evpn_handle_router_id_update(bgp, TRUE); |
2d48ee25 | 248 | |
d62a17ae | 249 | IPV4_ADDR_COPY(&bgp->router_id, id); |
718e3744 | 250 | |
d62a17ae | 251 | /* Set all peer's local identifier with this value. */ |
252 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
253 | IPV4_ADDR_COPY(&peer->local_id, id); | |
718e3744 | 254 | |
d62a17ae | 255 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
256 | peer->last_reset = PEER_DOWN_RID_CHANGE; | |
257 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
258 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
259 | } | |
260 | } | |
14c1a7bf | 261 | |
d62a17ae | 262 | /* EVPN uses router id in RD, update them */ |
94c2f693 | 263 | if (is_evpn_enabled()) |
d62a17ae | 264 | bgp_evpn_handle_router_id_update(bgp, FALSE); |
2d48ee25 | 265 | |
d62a17ae | 266 | return 0; |
718e3744 | 267 | } |
268 | ||
d62a17ae | 269 | void bgp_router_id_zebra_bump(vrf_id_t vrf_id, const struct prefix *router_id) |
0e6cb743 | 270 | { |
d62a17ae | 271 | struct listnode *node, *nnode; |
272 | struct bgp *bgp; | |
0e6cb743 | 273 | |
d62a17ae | 274 | if (vrf_id == VRF_DEFAULT) { |
275 | /* Router-id change for default VRF has to also update all | |
276 | * views. */ | |
277 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) { | |
278 | if (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) | |
279 | continue; | |
0e6cb743 | 280 | |
d62a17ae | 281 | bgp->router_id_zebra = router_id->u.prefix4; |
282 | if (!bgp->router_id_static.s_addr) | |
283 | bgp_router_id_set(bgp, &router_id->u.prefix4); | |
284 | } | |
285 | } else { | |
286 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
287 | if (bgp) { | |
288 | bgp->router_id_zebra = router_id->u.prefix4; | |
0e6cb743 | 289 | |
d62a17ae | 290 | if (!bgp->router_id_static.s_addr) |
291 | bgp_router_id_set(bgp, &router_id->u.prefix4); | |
292 | } | |
293 | } | |
0e6cb743 DL |
294 | } |
295 | ||
d62a17ae | 296 | int bgp_router_id_static_set(struct bgp *bgp, struct in_addr id) |
0e6cb743 | 297 | { |
d62a17ae | 298 | bgp->router_id_static = id; |
299 | bgp_router_id_set(bgp, id.s_addr ? &id : &bgp->router_id_zebra); | |
300 | return 0; | |
0e6cb743 DL |
301 | } |
302 | ||
718e3744 | 303 | /* BGP's cluster-id control. */ |
d62a17ae | 304 | int bgp_cluster_id_set(struct bgp *bgp, struct in_addr *cluster_id) |
718e3744 | 305 | { |
d62a17ae | 306 | struct peer *peer; |
307 | struct listnode *node, *nnode; | |
718e3744 | 308 | |
d62a17ae | 309 | if (bgp_config_check(bgp, BGP_CONFIG_CLUSTER_ID) |
310 | && IPV4_ADDR_SAME(&bgp->cluster_id, cluster_id)) | |
311 | return 0; | |
718e3744 | 312 | |
d62a17ae | 313 | IPV4_ADDR_COPY(&bgp->cluster_id, cluster_id); |
314 | bgp_config_set(bgp, BGP_CONFIG_CLUSTER_ID); | |
718e3744 | 315 | |
d62a17ae | 316 | /* Clear all IBGP peer. */ |
317 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
318 | if (peer->sort != BGP_PEER_IBGP) | |
319 | continue; | |
718e3744 | 320 | |
d62a17ae | 321 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
322 | peer->last_reset = PEER_DOWN_CLID_CHANGE; | |
323 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
324 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
325 | } | |
326 | } | |
327 | return 0; | |
718e3744 | 328 | } |
329 | ||
d62a17ae | 330 | int bgp_cluster_id_unset(struct bgp *bgp) |
718e3744 | 331 | { |
d62a17ae | 332 | struct peer *peer; |
333 | struct listnode *node, *nnode; | |
718e3744 | 334 | |
d62a17ae | 335 | if (!bgp_config_check(bgp, BGP_CONFIG_CLUSTER_ID)) |
336 | return 0; | |
718e3744 | 337 | |
d62a17ae | 338 | bgp->cluster_id.s_addr = 0; |
339 | bgp_config_unset(bgp, BGP_CONFIG_CLUSTER_ID); | |
718e3744 | 340 | |
d62a17ae | 341 | /* Clear all IBGP peer. */ |
342 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
343 | if (peer->sort != BGP_PEER_IBGP) | |
344 | continue; | |
718e3744 | 345 | |
d62a17ae | 346 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
347 | peer->last_reset = PEER_DOWN_CLID_CHANGE; | |
348 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
349 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
350 | } | |
351 | } | |
352 | return 0; | |
718e3744 | 353 | } |
6b0655a2 | 354 | |
65957886 SH |
355 | /* time_t value that is monotonicly increasing |
356 | * and uneffected by adjustments to system clock | |
357 | */ | |
d62a17ae | 358 | time_t bgp_clock(void) |
65957886 | 359 | { |
d62a17ae | 360 | struct timeval tv; |
65957886 | 361 | |
d62a17ae | 362 | monotime(&tv); |
363 | return tv.tv_sec; | |
65957886 SH |
364 | } |
365 | ||
718e3744 | 366 | /* BGP timer configuration. */ |
d7c0a89a | 367 | int bgp_timers_set(struct bgp *bgp, uint32_t keepalive, uint32_t holdtime) |
718e3744 | 368 | { |
d62a17ae | 369 | bgp->default_keepalive = |
370 | (keepalive < holdtime / 3 ? keepalive : holdtime / 3); | |
371 | bgp->default_holdtime = holdtime; | |
718e3744 | 372 | |
d62a17ae | 373 | return 0; |
718e3744 | 374 | } |
375 | ||
d62a17ae | 376 | int bgp_timers_unset(struct bgp *bgp) |
718e3744 | 377 | { |
d62a17ae | 378 | bgp->default_keepalive = BGP_DEFAULT_KEEPALIVE; |
379 | bgp->default_holdtime = BGP_DEFAULT_HOLDTIME; | |
718e3744 | 380 | |
d62a17ae | 381 | return 0; |
718e3744 | 382 | } |
6b0655a2 | 383 | |
718e3744 | 384 | /* BGP confederation configuration. */ |
d62a17ae | 385 | int bgp_confederation_id_set(struct bgp *bgp, as_t as) |
386 | { | |
387 | struct peer *peer; | |
388 | struct listnode *node, *nnode; | |
389 | int already_confed; | |
390 | ||
391 | if (as == 0) | |
392 | return BGP_ERR_INVALID_AS; | |
393 | ||
394 | /* Remember - were we doing confederation before? */ | |
395 | already_confed = bgp_config_check(bgp, BGP_CONFIG_CONFEDERATION); | |
396 | bgp->confed_id = as; | |
397 | bgp_config_set(bgp, BGP_CONFIG_CONFEDERATION); | |
398 | ||
399 | /* If we were doing confederation already, this is just an external | |
400 | AS change. Just Reset EBGP sessions, not CONFED sessions. If we | |
401 | were not doing confederation before, reset all EBGP sessions. */ | |
402 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
403 | /* We're looking for peers who's AS is not local or part of our | |
404 | confederation. */ | |
405 | if (already_confed) { | |
406 | if (peer_sort(peer) == BGP_PEER_EBGP) { | |
407 | peer->local_as = as; | |
408 | if (BGP_IS_VALID_STATE_FOR_NOTIF( | |
409 | peer->status)) { | |
410 | peer->last_reset = | |
411 | PEER_DOWN_CONFED_ID_CHANGE; | |
412 | bgp_notify_send( | |
413 | peer, BGP_NOTIFY_CEASE, | |
414 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
415 | } else | |
416 | bgp_session_reset_safe(peer, &nnode); | |
417 | } | |
418 | } else { | |
419 | /* Not doign confederation before, so reset every | |
420 | non-local | |
421 | session */ | |
422 | if (peer_sort(peer) != BGP_PEER_IBGP) { | |
423 | /* Reset the local_as to be our EBGP one */ | |
424 | if (peer_sort(peer) == BGP_PEER_EBGP) | |
425 | peer->local_as = as; | |
426 | if (BGP_IS_VALID_STATE_FOR_NOTIF( | |
427 | peer->status)) { | |
428 | peer->last_reset = | |
429 | PEER_DOWN_CONFED_ID_CHANGE; | |
430 | bgp_notify_send( | |
431 | peer, BGP_NOTIFY_CEASE, | |
432 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
433 | } else | |
434 | bgp_session_reset_safe(peer, &nnode); | |
435 | } | |
436 | } | |
718e3744 | 437 | } |
d62a17ae | 438 | return 0; |
718e3744 | 439 | } |
440 | ||
d62a17ae | 441 | int bgp_confederation_id_unset(struct bgp *bgp) |
718e3744 | 442 | { |
d62a17ae | 443 | struct peer *peer; |
444 | struct listnode *node, *nnode; | |
445 | ||
446 | bgp->confed_id = 0; | |
447 | bgp_config_unset(bgp, BGP_CONFIG_CONFEDERATION); | |
718e3744 | 448 | |
d62a17ae | 449 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { |
450 | /* We're looking for peers who's AS is not local */ | |
451 | if (peer_sort(peer) != BGP_PEER_IBGP) { | |
452 | peer->local_as = bgp->as; | |
453 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
454 | peer->last_reset = PEER_DOWN_CONFED_ID_CHANGE; | |
455 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
456 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
457 | } | |
718e3744 | 458 | |
d62a17ae | 459 | else |
460 | bgp_session_reset_safe(peer, &nnode); | |
461 | } | |
462 | } | |
463 | return 0; | |
718e3744 | 464 | } |
465 | ||
d62a17ae | 466 | /* Is an AS part of the confed or not? */ |
467 | int bgp_confederation_peers_check(struct bgp *bgp, as_t as) | |
718e3744 | 468 | { |
d62a17ae | 469 | int i; |
718e3744 | 470 | |
d62a17ae | 471 | if (!bgp) |
472 | return 0; | |
718e3744 | 473 | |
d62a17ae | 474 | for (i = 0; i < bgp->confed_peers_cnt; i++) |
475 | if (bgp->confed_peers[i] == as) | |
476 | return 1; | |
718e3744 | 477 | |
d62a17ae | 478 | return 0; |
479 | } | |
718e3744 | 480 | |
d62a17ae | 481 | /* Add an AS to the confederation set. */ |
482 | int bgp_confederation_peers_add(struct bgp *bgp, as_t as) | |
483 | { | |
484 | struct peer *peer; | |
485 | struct listnode *node, *nnode; | |
486 | ||
487 | if (!bgp) | |
488 | return BGP_ERR_INVALID_BGP; | |
489 | ||
490 | if (bgp->as == as) | |
491 | return BGP_ERR_INVALID_AS; | |
492 | ||
493 | if (bgp_confederation_peers_check(bgp, as)) | |
494 | return -1; | |
495 | ||
496 | if (bgp->confed_peers) | |
497 | bgp->confed_peers = | |
498 | XREALLOC(MTYPE_BGP_CONFED_LIST, bgp->confed_peers, | |
499 | (bgp->confed_peers_cnt + 1) * sizeof(as_t)); | |
500 | else | |
501 | bgp->confed_peers = | |
502 | XMALLOC(MTYPE_BGP_CONFED_LIST, | |
503 | (bgp->confed_peers_cnt + 1) * sizeof(as_t)); | |
504 | ||
505 | bgp->confed_peers[bgp->confed_peers_cnt] = as; | |
506 | bgp->confed_peers_cnt++; | |
507 | ||
508 | if (bgp_config_check(bgp, BGP_CONFIG_CONFEDERATION)) { | |
509 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
510 | if (peer->as == as) { | |
511 | peer->local_as = bgp->as; | |
512 | if (BGP_IS_VALID_STATE_FOR_NOTIF( | |
513 | peer->status)) { | |
514 | peer->last_reset = | |
515 | PEER_DOWN_CONFED_PEER_CHANGE; | |
516 | bgp_notify_send( | |
517 | peer, BGP_NOTIFY_CEASE, | |
518 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
519 | } else | |
520 | bgp_session_reset_safe(peer, &nnode); | |
521 | } | |
522 | } | |
523 | } | |
524 | return 0; | |
718e3744 | 525 | } |
526 | ||
527 | /* Delete an AS from the confederation set. */ | |
d62a17ae | 528 | int bgp_confederation_peers_remove(struct bgp *bgp, as_t as) |
529 | { | |
530 | int i; | |
531 | int j; | |
532 | struct peer *peer; | |
533 | struct listnode *node, *nnode; | |
534 | ||
535 | if (!bgp) | |
536 | return -1; | |
537 | ||
538 | if (!bgp_confederation_peers_check(bgp, as)) | |
539 | return -1; | |
540 | ||
541 | for (i = 0; i < bgp->confed_peers_cnt; i++) | |
542 | if (bgp->confed_peers[i] == as) | |
543 | for (j = i + 1; j < bgp->confed_peers_cnt; j++) | |
544 | bgp->confed_peers[j - 1] = bgp->confed_peers[j]; | |
545 | ||
546 | bgp->confed_peers_cnt--; | |
547 | ||
548 | if (bgp->confed_peers_cnt == 0) { | |
549 | if (bgp->confed_peers) | |
550 | XFREE(MTYPE_BGP_CONFED_LIST, bgp->confed_peers); | |
551 | bgp->confed_peers = NULL; | |
552 | } else | |
553 | bgp->confed_peers = | |
554 | XREALLOC(MTYPE_BGP_CONFED_LIST, bgp->confed_peers, | |
555 | bgp->confed_peers_cnt * sizeof(as_t)); | |
556 | ||
557 | /* Now reset any peer who's remote AS has just been removed from the | |
558 | CONFED */ | |
559 | if (bgp_config_check(bgp, BGP_CONFIG_CONFEDERATION)) { | |
560 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
561 | if (peer->as == as) { | |
562 | peer->local_as = bgp->confed_id; | |
563 | if (BGP_IS_VALID_STATE_FOR_NOTIF( | |
564 | peer->status)) { | |
565 | peer->last_reset = | |
566 | PEER_DOWN_CONFED_PEER_CHANGE; | |
567 | bgp_notify_send( | |
568 | peer, BGP_NOTIFY_CEASE, | |
569 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
570 | } else | |
571 | bgp_session_reset_safe(peer, &nnode); | |
572 | } | |
573 | } | |
718e3744 | 574 | } |
718e3744 | 575 | |
d62a17ae | 576 | return 0; |
718e3744 | 577 | } |
6b0655a2 | 578 | |
718e3744 | 579 | /* Local preference configuration. */ |
d7c0a89a | 580 | int bgp_default_local_preference_set(struct bgp *bgp, uint32_t local_pref) |
718e3744 | 581 | { |
d62a17ae | 582 | if (!bgp) |
583 | return -1; | |
718e3744 | 584 | |
d62a17ae | 585 | bgp->default_local_pref = local_pref; |
718e3744 | 586 | |
d62a17ae | 587 | return 0; |
718e3744 | 588 | } |
589 | ||
d62a17ae | 590 | int bgp_default_local_preference_unset(struct bgp *bgp) |
718e3744 | 591 | { |
d62a17ae | 592 | if (!bgp) |
593 | return -1; | |
718e3744 | 594 | |
d62a17ae | 595 | bgp->default_local_pref = BGP_DEFAULT_LOCAL_PREF; |
718e3744 | 596 | |
d62a17ae | 597 | return 0; |
718e3744 | 598 | } |
6b0655a2 | 599 | |
3f9c7369 | 600 | /* Local preference configuration. */ |
d7c0a89a | 601 | int bgp_default_subgroup_pkt_queue_max_set(struct bgp *bgp, uint32_t queue_size) |
3f9c7369 | 602 | { |
d62a17ae | 603 | if (!bgp) |
604 | return -1; | |
3f9c7369 | 605 | |
d62a17ae | 606 | bgp->default_subgroup_pkt_queue_max = queue_size; |
3f9c7369 | 607 | |
d62a17ae | 608 | return 0; |
3f9c7369 DS |
609 | } |
610 | ||
d62a17ae | 611 | int bgp_default_subgroup_pkt_queue_max_unset(struct bgp *bgp) |
3f9c7369 | 612 | { |
d62a17ae | 613 | if (!bgp) |
614 | return -1; | |
615 | bgp->default_subgroup_pkt_queue_max = | |
616 | BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX; | |
3f9c7369 | 617 | |
d62a17ae | 618 | return 0; |
3f9c7369 DS |
619 | } |
620 | ||
f14e6fdb | 621 | /* Listen limit configuration. */ |
d62a17ae | 622 | int bgp_listen_limit_set(struct bgp *bgp, int listen_limit) |
f14e6fdb | 623 | { |
d62a17ae | 624 | if (!bgp) |
625 | return -1; | |
f14e6fdb | 626 | |
d62a17ae | 627 | bgp->dynamic_neighbors_limit = listen_limit; |
f14e6fdb | 628 | |
d62a17ae | 629 | return 0; |
f14e6fdb DS |
630 | } |
631 | ||
d62a17ae | 632 | int bgp_listen_limit_unset(struct bgp *bgp) |
f14e6fdb | 633 | { |
d62a17ae | 634 | if (!bgp) |
635 | return -1; | |
f14e6fdb | 636 | |
d62a17ae | 637 | bgp->dynamic_neighbors_limit = BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT; |
f14e6fdb | 638 | |
d62a17ae | 639 | return 0; |
f14e6fdb DS |
640 | } |
641 | ||
5c525538 RW |
642 | int bgp_map_afi_safi_iana2int(iana_afi_t pkt_afi, iana_safi_t pkt_safi, |
643 | afi_t *afi, safi_t *safi) | |
9cabb64b | 644 | { |
d62a17ae | 645 | /* Map from IANA values to internal values, return error if |
646 | * values are unrecognized. | |
647 | */ | |
648 | *afi = afi_iana2int(pkt_afi); | |
649 | *safi = safi_iana2int(pkt_safi); | |
650 | if (*afi == AFI_MAX || *safi == SAFI_MAX) | |
651 | return -1; | |
9cabb64b | 652 | |
d62a17ae | 653 | return 0; |
9cabb64b | 654 | } |
655 | ||
d62a17ae | 656 | int bgp_map_afi_safi_int2iana(afi_t afi, safi_t safi, iana_afi_t *pkt_afi, |
5c525538 | 657 | iana_safi_t *pkt_safi) |
9cabb64b | 658 | { |
d62a17ae | 659 | /* Map from internal values to IANA values, return error if |
660 | * internal values are bad (unexpected). | |
661 | */ | |
662 | if (afi == AFI_MAX || safi == SAFI_MAX) | |
663 | return -1; | |
664 | *pkt_afi = afi_int2iana(afi); | |
665 | *pkt_safi = safi_int2iana(safi); | |
666 | return 0; | |
9cabb64b | 667 | } |
668 | ||
d62a17ae | 669 | struct peer_af *peer_af_create(struct peer *peer, afi_t afi, safi_t safi) |
3f9c7369 | 670 | { |
d62a17ae | 671 | struct peer_af *af; |
672 | int afid; | |
3f9c7369 | 673 | |
d62a17ae | 674 | if (!peer) |
675 | return NULL; | |
3f9c7369 | 676 | |
d62a17ae | 677 | afid = afindex(afi, safi); |
678 | if (afid >= BGP_AF_MAX) | |
679 | return NULL; | |
3f9c7369 | 680 | |
d62a17ae | 681 | assert(peer->peer_af_array[afid] == NULL); |
3f9c7369 | 682 | |
d62a17ae | 683 | /* Allocate new peer af */ |
684 | af = XCALLOC(MTYPE_BGP_PEER_AF, sizeof(struct peer_af)); | |
c8560b44 | 685 | |
d62a17ae | 686 | if (af == NULL) { |
687 | zlog_err("Could not create af structure for peer %s", | |
688 | peer->host); | |
689 | return NULL; | |
690 | } | |
c8560b44 | 691 | |
d62a17ae | 692 | peer->peer_af_array[afid] = af; |
693 | af->afi = afi; | |
694 | af->safi = safi; | |
695 | af->afid = afid; | |
696 | af->peer = peer; | |
3f9c7369 | 697 | |
d62a17ae | 698 | return af; |
3f9c7369 DS |
699 | } |
700 | ||
d62a17ae | 701 | struct peer_af *peer_af_find(struct peer *peer, afi_t afi, safi_t safi) |
3f9c7369 | 702 | { |
d62a17ae | 703 | int afid; |
3f9c7369 | 704 | |
d62a17ae | 705 | if (!peer) |
706 | return NULL; | |
3f9c7369 | 707 | |
d62a17ae | 708 | afid = afindex(afi, safi); |
709 | if (afid >= BGP_AF_MAX) | |
710 | return NULL; | |
3f9c7369 | 711 | |
d62a17ae | 712 | return peer->peer_af_array[afid]; |
3f9c7369 DS |
713 | } |
714 | ||
d62a17ae | 715 | int peer_af_delete(struct peer *peer, afi_t afi, safi_t safi) |
3f9c7369 | 716 | { |
d62a17ae | 717 | struct peer_af *af; |
718 | int afid; | |
3f9c7369 | 719 | |
d62a17ae | 720 | if (!peer) |
721 | return -1; | |
3f9c7369 | 722 | |
d62a17ae | 723 | afid = afindex(afi, safi); |
724 | if (afid >= BGP_AF_MAX) | |
725 | return -1; | |
3f9c7369 | 726 | |
d62a17ae | 727 | af = peer->peer_af_array[afid]; |
728 | if (!af) | |
729 | return -1; | |
3f9c7369 | 730 | |
d62a17ae | 731 | bgp_stop_announce_route_timer(af); |
3f9c7369 | 732 | |
d62a17ae | 733 | if (PAF_SUBGRP(af)) { |
734 | if (BGP_DEBUG(update_groups, UPDATE_GROUPS)) | |
735 | zlog_debug("u%" PRIu64 ":s%" PRIu64 " remove peer %s", | |
736 | af->subgroup->update_group->id, | |
737 | af->subgroup->id, peer->host); | |
738 | } | |
3f9c7369 | 739 | |
d62a17ae | 740 | update_subgroup_remove_peer(af->subgroup, af); |
3f9c7369 | 741 | |
d62a17ae | 742 | peer->peer_af_array[afid] = NULL; |
743 | XFREE(MTYPE_BGP_PEER_AF, af); | |
744 | return 0; | |
3f9c7369 DS |
745 | } |
746 | ||
eb821189 | 747 | /* Peer comparison function for sorting. */ |
d62a17ae | 748 | int peer_cmp(struct peer *p1, struct peer *p2) |
718e3744 | 749 | { |
d62a17ae | 750 | if (p1->group && !p2->group) |
751 | return -1; | |
0aaa34db | 752 | |
d62a17ae | 753 | if (!p1->group && p2->group) |
754 | return 1; | |
0aaa34db | 755 | |
d62a17ae | 756 | if (p1->group == p2->group) { |
757 | if (p1->conf_if && !p2->conf_if) | |
758 | return -1; | |
0aaa34db | 759 | |
d62a17ae | 760 | if (!p1->conf_if && p2->conf_if) |
761 | return 1; | |
0aaa34db | 762 | |
d62a17ae | 763 | if (p1->conf_if && p2->conf_if) |
764 | return if_cmp_name_func(p1->conf_if, p2->conf_if); | |
765 | } else | |
766 | return strcmp(p1->group->name, p2->group->name); | |
0aaa34db | 767 | |
d62a17ae | 768 | return sockunion_cmp(&p1->su, &p2->su); |
718e3744 | 769 | } |
770 | ||
d62a17ae | 771 | static unsigned int peer_hash_key_make(void *p) |
dd793e4a | 772 | { |
d62a17ae | 773 | struct peer *peer = p; |
774 | return sockunion_hash(&peer->su); | |
dd793e4a DW |
775 | } |
776 | ||
40520c36 | 777 | static int peer_hash_same(const void *p1, const void *p2) |
dd793e4a | 778 | { |
d62a17ae | 779 | const struct peer *peer1 = p1; |
780 | const struct peer *peer2 = p2; | |
781 | return (sockunion_same(&peer1->su, &peer2->su) | |
782 | && CHECK_FLAG(peer1->flags, PEER_FLAG_CONFIG_NODE) | |
783 | == CHECK_FLAG(peer2->flags, PEER_FLAG_CONFIG_NODE)); | |
dd793e4a DW |
784 | } |
785 | ||
9fb964de PM |
786 | void peer_flag_inherit(struct peer *peer, uint32_t flag) |
787 | { | |
788 | bool group_val; | |
789 | ||
790 | /* Skip if peer is not a peer-group member. */ | |
791 | if (!peer_group_active(peer)) | |
792 | return; | |
793 | ||
794 | /* Unset override flag to signal inheritance from peer-group. */ | |
795 | UNSET_FLAG(peer->flags_override, flag); | |
796 | ||
797 | /* | |
798 | * Inherit flag state from peer-group. If the flag of the peer-group is | |
799 | * not being inverted, the peer must inherit the inverse of the current | |
800 | * peer-group flag state. | |
801 | */ | |
802 | group_val = CHECK_FLAG(peer->group->conf->flags, flag); | |
803 | if (!CHECK_FLAG(peer->group->conf->flags_invert, flag) | |
804 | && CHECK_FLAG(peer->flags_invert, flag)) | |
805 | COND_FLAG(peer->flags, flag, !group_val); | |
806 | else | |
807 | COND_FLAG(peer->flags, flag, group_val); | |
808 | } | |
809 | ||
d7c0a89a | 810 | int peer_af_flag_check(struct peer *peer, afi_t afi, safi_t safi, uint32_t flag) |
718e3744 | 811 | { |
d62a17ae | 812 | return CHECK_FLAG(peer->af_flags[afi][safi], flag); |
718e3744 | 813 | } |
814 | ||
598ce6bd PM |
815 | void peer_af_flag_inherit(struct peer *peer, afi_t afi, safi_t safi, |
816 | uint32_t flag) | |
88b8ed8d | 817 | { |
527de3dc PM |
818 | bool group_val; |
819 | ||
598ce6bd PM |
820 | /* Skip if peer is not a peer-group member. */ |
821 | if (!peer_group_active(peer)) | |
822 | return; | |
88b8ed8d | 823 | |
598ce6bd PM |
824 | /* Unset override flag to signal inheritance from peer-group. */ |
825 | UNSET_FLAG(peer->af_flags_override[afi][safi], flag); | |
88b8ed8d | 826 | |
527de3dc PM |
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->af_flags[afi][safi], flag); | |
833 | if (!CHECK_FLAG(peer->group->conf->af_flags_invert[afi][safi], flag) | |
834 | && CHECK_FLAG(peer->af_flags_invert[afi][safi], flag)) | |
835 | COND_FLAG(peer->af_flags[afi][safi], flag, !group_val); | |
598ce6bd | 836 | else |
527de3dc | 837 | COND_FLAG(peer->af_flags[afi][safi], flag, group_val); |
598ce6bd | 838 | } |
88b8ed8d | 839 | |
9fb964de PM |
840 | static bool peergroup_flag_check(struct peer *peer, uint32_t flag) |
841 | { | |
842 | if (!peer_group_active(peer)) { | |
843 | if (CHECK_FLAG(peer->flags_invert, flag)) | |
844 | return !CHECK_FLAG(peer->flags, flag); | |
845 | else | |
846 | return !!CHECK_FLAG(peer->flags, flag); | |
847 | } | |
848 | ||
849 | return !!CHECK_FLAG(peer->flags_override, flag); | |
850 | } | |
851 | ||
598ce6bd PM |
852 | static bool peergroup_af_flag_check(struct peer *peer, afi_t afi, safi_t safi, |
853 | uint32_t flag) | |
854 | { | |
27c05d4d PM |
855 | if (!peer_group_active(peer)) { |
856 | if (CHECK_FLAG(peer->af_flags_invert[afi][safi], flag)) | |
857 | return !peer_af_flag_check(peer, afi, safi, flag); | |
858 | else | |
859 | return !!peer_af_flag_check(peer, afi, safi, flag); | |
d62a17ae | 860 | } |
88b8ed8d | 861 | |
598ce6bd | 862 | return !!CHECK_FLAG(peer->af_flags_override[afi][safi], flag); |
88b8ed8d DW |
863 | } |
864 | ||
70ee29b4 PM |
865 | static bool peergroup_filter_check(struct peer *peer, afi_t afi, safi_t safi, |
866 | uint8_t type, int direct) | |
867 | { | |
868 | struct bgp_filter *filter; | |
869 | ||
870 | if (peer_group_active(peer)) | |
871 | return !!CHECK_FLAG(peer->filter_override[afi][safi][direct], | |
872 | type); | |
873 | ||
874 | filter = &peer->filter[afi][safi]; | |
875 | switch (type) { | |
876 | case PEER_FT_DISTRIBUTE_LIST: | |
877 | return !!(filter->dlist[direct].name); | |
878 | case PEER_FT_FILTER_LIST: | |
879 | return !!(filter->aslist[direct].name); | |
880 | case PEER_FT_PREFIX_LIST: | |
881 | return !!(filter->plist[direct].name); | |
882 | case PEER_FT_ROUTE_MAP: | |
883 | return !!(filter->map[direct].name); | |
884 | case PEER_FT_UNSUPPRESS_MAP: | |
885 | return !!(filter->usmap.name); | |
886 | default: | |
887 | return false; | |
888 | } | |
88b8ed8d DW |
889 | } |
890 | ||
6d85b15b | 891 | /* Check peer's AS number and determines if this peer is IBGP or EBGP */ |
82417ac2 | 892 | static inline bgp_peer_sort_t peer_calc_sort(struct peer *peer) |
718e3744 | 893 | { |
d62a17ae | 894 | struct bgp *bgp; |
718e3744 | 895 | |
d62a17ae | 896 | bgp = peer->bgp; |
718e3744 | 897 | |
d62a17ae | 898 | /* Peer-group */ |
899 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
900 | if (peer->as_type == AS_INTERNAL) | |
901 | return BGP_PEER_IBGP; | |
66b199b2 | 902 | |
d62a17ae | 903 | else if (peer->as_type == AS_EXTERNAL) |
904 | return BGP_PEER_EBGP; | |
66b199b2 | 905 | |
b575a12c A |
906 | else if (peer->as_type == AS_SPECIFIED && peer->as) { |
907 | assert(bgp); | |
d62a17ae | 908 | return (bgp->as == peer->as ? BGP_PEER_IBGP |
909 | : BGP_PEER_EBGP); | |
b575a12c | 910 | } |
66b199b2 | 911 | |
d62a17ae | 912 | else { |
913 | struct peer *peer1; | |
d4f8b537 | 914 | |
915 | assert(peer->group); | |
d62a17ae | 916 | peer1 = listnode_head(peer->group->peer); |
917 | ||
918 | if (peer1) | |
919 | return peer1->sort; | |
920 | } | |
921 | return BGP_PEER_INTERNAL; | |
922 | } | |
923 | ||
924 | /* Normal peer */ | |
925 | if (bgp && CHECK_FLAG(bgp->config, BGP_CONFIG_CONFEDERATION)) { | |
926 | if (peer->local_as == 0) | |
927 | return BGP_PEER_INTERNAL; | |
928 | ||
929 | if (peer->local_as == peer->as) { | |
930 | if (bgp->as == bgp->confed_id) { | |
931 | if (peer->local_as == bgp->as) | |
932 | return BGP_PEER_IBGP; | |
933 | else | |
934 | return BGP_PEER_EBGP; | |
935 | } else { | |
936 | if (peer->local_as == bgp->confed_id) | |
937 | return BGP_PEER_EBGP; | |
938 | else | |
939 | return BGP_PEER_IBGP; | |
940 | } | |
941 | } | |
942 | ||
943 | if (bgp_confederation_peers_check(bgp, peer->as)) | |
944 | return BGP_PEER_CONFED; | |
945 | ||
946 | return BGP_PEER_EBGP; | |
947 | } else { | |
948 | if (peer->as_type != AS_SPECIFIED) | |
949 | return (peer->as_type == AS_INTERNAL ? BGP_PEER_IBGP | |
950 | : BGP_PEER_EBGP); | |
951 | ||
952 | return (peer->local_as == 0 | |
953 | ? BGP_PEER_INTERNAL | |
954 | : peer->local_as == peer->as ? BGP_PEER_IBGP | |
955 | : BGP_PEER_EBGP); | |
956 | } | |
718e3744 | 957 | } |
958 | ||
6d85b15b | 959 | /* Calculate and cache the peer "sort" */ |
d62a17ae | 960 | bgp_peer_sort_t peer_sort(struct peer *peer) |
961 | { | |
962 | peer->sort = peer_calc_sort(peer); | |
963 | return peer->sort; | |
964 | } | |
965 | ||
966 | static void peer_free(struct peer *peer) | |
967 | { | |
968 | assert(peer->status == Deleted); | |
969 | ||
970 | QOBJ_UNREG(peer); | |
971 | ||
972 | /* this /ought/ to have been done already through bgp_stop earlier, | |
973 | * but just to be sure.. | |
974 | */ | |
975 | bgp_timer_set(peer); | |
424ab01d QY |
976 | bgp_reads_off(peer); |
977 | bgp_writes_off(peer); | |
978 | assert(!peer->t_write); | |
979 | assert(!peer->t_read); | |
d62a17ae | 980 | BGP_EVENT_FLUSH(peer); |
981 | ||
424ab01d QY |
982 | pthread_mutex_destroy(&peer->io_mtx); |
983 | ||
d62a17ae | 984 | /* Free connected nexthop, if present */ |
985 | if (CHECK_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE) | |
986 | && !peer_dynamic_neighbor(peer)) | |
987 | bgp_delete_connected_nexthop(family2afi(peer->su.sa.sa_family), | |
988 | peer); | |
989 | ||
990 | XFREE(MTYPE_PEER_TX_SHUTDOWN_MSG, peer->tx_shutdown_message); | |
991 | ||
992 | if (peer->desc) { | |
993 | XFREE(MTYPE_PEER_DESC, peer->desc); | |
994 | peer->desc = NULL; | |
995 | } | |
996 | ||
997 | /* Free allocated host character. */ | |
998 | if (peer->host) { | |
999 | XFREE(MTYPE_BGP_PEER_HOST, peer->host); | |
1000 | peer->host = NULL; | |
1001 | } | |
1002 | ||
1003 | if (peer->domainname) { | |
1004 | XFREE(MTYPE_BGP_PEER_HOST, peer->domainname); | |
1005 | peer->domainname = NULL; | |
1006 | } | |
1007 | ||
1008 | if (peer->ifname) { | |
1009 | XFREE(MTYPE_BGP_PEER_IFNAME, peer->ifname); | |
1010 | peer->ifname = NULL; | |
1011 | } | |
1012 | ||
1013 | /* Update source configuration. */ | |
1014 | if (peer->update_source) { | |
1015 | sockunion_free(peer->update_source); | |
1016 | peer->update_source = NULL; | |
1017 | } | |
1018 | ||
1019 | if (peer->update_if) { | |
1020 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); | |
1021 | peer->update_if = NULL; | |
1022 | } | |
1023 | ||
1024 | if (peer->notify.data) | |
1025 | XFREE(MTYPE_TMP, peer->notify.data); | |
1026 | memset(&peer->notify, 0, sizeof(struct bgp_notify)); | |
1027 | ||
e208c8f9 DS |
1028 | if (peer->clear_node_queue) |
1029 | work_queue_free_and_null(&peer->clear_node_queue); | |
d62a17ae | 1030 | |
1031 | bgp_sync_delete(peer); | |
1032 | ||
1033 | if (peer->conf_if) { | |
1034 | XFREE(MTYPE_PEER_CONF_IF, peer->conf_if); | |
1035 | peer->conf_if = NULL; | |
1036 | } | |
1037 | ||
1038 | bfd_info_free(&(peer->bfd_info)); | |
1039 | ||
1040 | bgp_unlock(peer->bgp); | |
1041 | ||
1042 | memset(peer, 0, sizeof(struct peer)); | |
1043 | ||
1044 | XFREE(MTYPE_BGP_PEER, peer); | |
1045 | } | |
1046 | ||
200df115 | 1047 | /* increase reference count on a struct peer */ |
d62a17ae | 1048 | struct peer *peer_lock_with_caller(const char *name, struct peer *peer) |
200df115 | 1049 | { |
d62a17ae | 1050 | assert(peer && (peer->lock >= 0)); |
28066f4b DS |
1051 | |
1052 | #if 0 | |
1053 | zlog_debug("%s peer_lock %p %d", name, peer, peer->lock); | |
1054 | #endif | |
d62a17ae | 1055 | |
1056 | peer->lock++; | |
1057 | ||
1058 | return peer; | |
200df115 | 1059 | } |
1060 | ||
1061 | /* decrease reference count on a struct peer | |
1062 | * struct peer is freed and NULL returned if last reference | |
1063 | */ | |
d62a17ae | 1064 | struct peer *peer_unlock_with_caller(const char *name, struct peer *peer) |
200df115 | 1065 | { |
d62a17ae | 1066 | assert(peer && (peer->lock > 0)); |
28066f4b DS |
1067 | |
1068 | #if 0 | |
1069 | zlog_debug("%s peer_unlock %p %d", name, peer, peer->lock); | |
1070 | #endif | |
200df115 | 1071 | |
d62a17ae | 1072 | peer->lock--; |
1073 | ||
1074 | if (peer->lock == 0) { | |
1075 | peer_free(peer); | |
1076 | return NULL; | |
1077 | } | |
1078 | ||
1079 | return peer; | |
200df115 | 1080 | } |
1ff9a340 | 1081 | |
200df115 | 1082 | /* Allocate new peer object, implicitely locked. */ |
d62a17ae | 1083 | struct peer *peer_new(struct bgp *bgp) |
1084 | { | |
1085 | afi_t afi; | |
1086 | safi_t safi; | |
1087 | struct peer *peer; | |
1088 | struct servent *sp; | |
1089 | ||
1090 | /* bgp argument is absolutely required */ | |
1091 | assert(bgp); | |
1092 | if (!bgp) | |
1093 | return NULL; | |
1094 | ||
1095 | /* Allocate new peer. */ | |
1096 | peer = XCALLOC(MTYPE_BGP_PEER, sizeof(struct peer)); | |
1097 | ||
1098 | /* Set default value. */ | |
1099 | peer->fd = -1; | |
1100 | peer->v_start = BGP_INIT_START_TIMER; | |
1101 | peer->v_connect = BGP_DEFAULT_CONNECT_RETRY; | |
1102 | peer->status = Idle; | |
1103 | peer->ostatus = Idle; | |
1104 | peer->cur_event = peer->last_event = peer->last_major_event = 0; | |
92375c91 | 1105 | peer->bgp = bgp_lock(bgp); |
d62a17ae | 1106 | peer = peer_lock(peer); /* initial reference */ |
d62a17ae | 1107 | peer->password = NULL; |
1108 | ||
27c05d4d | 1109 | /* Set default flags. */ |
05c7a1cc QY |
1110 | FOREACH_AFI_SAFI (afi, safi) { |
1111 | if (!bgp_option_check(BGP_OPT_CONFIG_CISCO)) { | |
1112 | SET_FLAG(peer->af_flags[afi][safi], | |
1113 | PEER_FLAG_SEND_COMMUNITY); | |
1114 | SET_FLAG(peer->af_flags[afi][safi], | |
1115 | PEER_FLAG_SEND_EXT_COMMUNITY); | |
1116 | SET_FLAG(peer->af_flags[afi][safi], | |
1117 | PEER_FLAG_SEND_LARGE_COMMUNITY); | |
27c05d4d PM |
1118 | |
1119 | SET_FLAG(peer->af_flags_invert[afi][safi], | |
1120 | PEER_FLAG_SEND_COMMUNITY); | |
1121 | SET_FLAG(peer->af_flags_invert[afi][safi], | |
1122 | PEER_FLAG_SEND_EXT_COMMUNITY); | |
1123 | SET_FLAG(peer->af_flags_invert[afi][safi], | |
1124 | PEER_FLAG_SEND_LARGE_COMMUNITY); | |
d62a17ae | 1125 | } |
05c7a1cc | 1126 | } |
637315fc MK |
1127 | |
1128 | /* set nexthop-unchanged for l2vpn evpn by default */ | |
1129 | SET_FLAG(peer->af_flags[AFI_L2VPN][SAFI_EVPN], | |
1130 | PEER_FLAG_NEXTHOP_UNCHANGED); | |
1131 | ||
d62a17ae | 1132 | SET_FLAG(peer->sflags, PEER_STATUS_CAPABILITY_OPEN); |
718e3744 | 1133 | |
d62a17ae | 1134 | /* Create buffers. */ |
424ab01d | 1135 | peer->ibuf = stream_fifo_new(); |
d62a17ae | 1136 | peer->obuf = stream_fifo_new(); |
424ab01d | 1137 | pthread_mutex_init(&peer->io_mtx, NULL); |
0a91ff55 | 1138 | |
424ab01d | 1139 | /* We use a larger buffer for peer->obuf_work in the event that: |
d62a17ae | 1140 | * - We RX a BGP_UPDATE where the attributes alone are just |
1141 | * under BGP_MAX_PACKET_SIZE | |
1142 | * - The user configures an outbound route-map that does many as-path | |
09f6d019 QY |
1143 | * prepends or adds many communities. At most they can have |
1144 | * CMD_ARGC_MAX args in a route-map so there is a finite limit on how | |
1145 | * large they can make the attributes. | |
d62a17ae | 1146 | * |
1147 | * Having a buffer with BGP_MAX_PACKET_SIZE_OVERFLOW allows us to avoid | |
09f6d019 QY |
1148 | * bounds checking for every single attribute as we construct an |
1149 | * UPDATE. | |
d62a17ae | 1150 | */ |
424ab01d | 1151 | peer->obuf_work = |
d62a17ae | 1152 | stream_new(BGP_MAX_PACKET_SIZE + BGP_MAX_PACKET_SIZE_OVERFLOW); |
74ffbfe6 QY |
1153 | peer->ibuf_work = |
1154 | ringbuf_new(BGP_MAX_PACKET_SIZE * BGP_READ_PACKET_MAX); | |
1155 | ||
d62a17ae | 1156 | peer->scratch = stream_new(BGP_MAX_PACKET_SIZE); |
718e3744 | 1157 | |
d62a17ae | 1158 | bgp_sync_init(peer); |
718e3744 | 1159 | |
d62a17ae | 1160 | /* Get service port number. */ |
1161 | sp = getservbyname("bgp", "tcp"); | |
1162 | peer->port = (sp == NULL) ? BGP_PORT_DEFAULT : ntohs(sp->s_port); | |
718e3744 | 1163 | |
d62a17ae | 1164 | QOBJ_REG(peer, peer); |
1165 | return peer; | |
718e3744 | 1166 | } |
1167 | ||
1ff9a340 DS |
1168 | /* |
1169 | * This function is invoked when a duplicate peer structure associated with | |
1170 | * a neighbor is being deleted. If this about-to-be-deleted structure is | |
1171 | * the one with all the config, then we have to copy over the info. | |
1172 | */ | |
d62a17ae | 1173 | void peer_xfer_config(struct peer *peer_dst, struct peer *peer_src) |
1174 | { | |
1175 | struct peer_af *paf; | |
1176 | afi_t afi; | |
1177 | safi_t safi; | |
1178 | int afidx; | |
1179 | ||
1180 | assert(peer_src); | |
1181 | assert(peer_dst); | |
1182 | ||
1183 | /* The following function is used by both peer group config copy to | |
1184 | * individual peer and when we transfer config | |
1185 | */ | |
1186 | if (peer_src->change_local_as) | |
1187 | peer_dst->change_local_as = peer_src->change_local_as; | |
1188 | ||
1189 | /* peer flags apply */ | |
1190 | peer_dst->flags = peer_src->flags; | |
1191 | peer_dst->cap = peer_src->cap; | |
d62a17ae | 1192 | |
1193 | peer_dst->local_as = peer_src->local_as; | |
d62a17ae | 1194 | peer_dst->port = peer_src->port; |
82417ac2 | 1195 | (void)peer_sort(peer_dst); |
d62a17ae | 1196 | peer_dst->rmap_type = peer_src->rmap_type; |
1197 | ||
1198 | /* Timers */ | |
1199 | peer_dst->holdtime = peer_src->holdtime; | |
1200 | peer_dst->keepalive = peer_src->keepalive; | |
1201 | peer_dst->connect = peer_src->connect; | |
1202 | peer_dst->v_holdtime = peer_src->v_holdtime; | |
1203 | peer_dst->v_keepalive = peer_src->v_keepalive; | |
1204 | peer_dst->routeadv = peer_src->routeadv; | |
1205 | peer_dst->v_routeadv = peer_src->v_routeadv; | |
1206 | ||
1207 | /* password apply */ | |
1208 | if (peer_src->password && !peer_dst->password) | |
1209 | peer_dst->password = | |
1210 | XSTRDUP(MTYPE_PEER_PASSWORD, peer_src->password); | |
1211 | ||
05c7a1cc QY |
1212 | FOREACH_AFI_SAFI (afi, safi) { |
1213 | peer_dst->afc[afi][safi] = peer_src->afc[afi][safi]; | |
1214 | peer_dst->af_flags[afi][safi] = peer_src->af_flags[afi][safi]; | |
1215 | peer_dst->allowas_in[afi][safi] = | |
1216 | peer_src->allowas_in[afi][safi]; | |
1217 | peer_dst->weight[afi][safi] = peer_src->weight[afi][safi]; | |
1218 | } | |
d62a17ae | 1219 | |
1220 | for (afidx = BGP_AF_START; afidx < BGP_AF_MAX; afidx++) { | |
1221 | paf = peer_src->peer_af_array[afidx]; | |
1222 | if (paf != NULL) | |
1223 | peer_af_create(peer_dst, paf->afi, paf->safi); | |
1224 | } | |
1225 | ||
1226 | /* update-source apply */ | |
1227 | if (peer_src->update_source) { | |
1228 | if (peer_dst->update_source) | |
1229 | sockunion_free(peer_dst->update_source); | |
1230 | if (peer_dst->update_if) { | |
1231 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer_dst->update_if); | |
1232 | peer_dst->update_if = NULL; | |
1233 | } | |
1234 | peer_dst->update_source = | |
1235 | sockunion_dup(peer_src->update_source); | |
1236 | } else if (peer_src->update_if) { | |
1237 | if (peer_dst->update_if) | |
1238 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer_dst->update_if); | |
1239 | if (peer_dst->update_source) { | |
1240 | sockunion_free(peer_dst->update_source); | |
1241 | peer_dst->update_source = NULL; | |
1242 | } | |
1243 | peer_dst->update_if = | |
1244 | XSTRDUP(MTYPE_PEER_UPDATE_SOURCE, peer_src->update_if); | |
1245 | } | |
1246 | ||
1247 | if (peer_src->ifname) { | |
1248 | if (peer_dst->ifname) | |
1249 | XFREE(MTYPE_BGP_PEER_IFNAME, peer_dst->ifname); | |
1250 | ||
1251 | peer_dst->ifname = | |
1252 | XSTRDUP(MTYPE_BGP_PEER_IFNAME, peer_src->ifname); | |
1253 | } | |
1254 | } | |
1255 | ||
1256 | static int bgp_peer_conf_if_to_su_update_v4(struct peer *peer, | |
1257 | struct interface *ifp) | |
1258 | { | |
1259 | struct connected *ifc; | |
1260 | struct prefix p; | |
d7c0a89a | 1261 | uint32_t addr; |
d62a17ae | 1262 | struct listnode *node; |
1263 | ||
1264 | /* If our IPv4 address on the interface is /30 or /31, we can derive the | |
1265 | * IPv4 address of the other end. | |
1266 | */ | |
1267 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, ifc)) { | |
1268 | if (ifc->address && (ifc->address->family == AF_INET)) { | |
1269 | PREFIX_COPY_IPV4(&p, CONNECTED_PREFIX(ifc)); | |
1270 | if (p.prefixlen == 30) { | |
1271 | peer->su.sa.sa_family = AF_INET; | |
1272 | addr = ntohl(p.u.prefix4.s_addr); | |
1273 | if (addr % 4 == 1) | |
1274 | peer->su.sin.sin_addr.s_addr = | |
1275 | htonl(addr + 1); | |
1276 | else if (addr % 4 == 2) | |
1277 | peer->su.sin.sin_addr.s_addr = | |
1278 | htonl(addr - 1); | |
8ffedcea | 1279 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
d62a17ae | 1280 | peer->su.sin.sin_len = |
1281 | sizeof(struct sockaddr_in); | |
8ffedcea | 1282 | #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */ |
d62a17ae | 1283 | return 1; |
1284 | } else if (p.prefixlen == 31) { | |
1285 | peer->su.sa.sa_family = AF_INET; | |
1286 | addr = ntohl(p.u.prefix4.s_addr); | |
1287 | if (addr % 2 == 0) | |
1288 | peer->su.sin.sin_addr.s_addr = | |
1289 | htonl(addr + 1); | |
1290 | else | |
1291 | peer->su.sin.sin_addr.s_addr = | |
1292 | htonl(addr - 1); | |
8ffedcea | 1293 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
d62a17ae | 1294 | peer->su.sin.sin_len = |
1295 | sizeof(struct sockaddr_in); | |
8ffedcea | 1296 | #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */ |
d62a17ae | 1297 | return 1; |
1298 | } else if (bgp_debug_neighbor_events(peer)) | |
1299 | zlog_debug( | |
1300 | "%s: IPv4 interface address is not /30 or /31, v4 session not started", | |
1301 | peer->conf_if); | |
1302 | } | |
1303 | } | |
1304 | ||
1305 | return 0; | |
1306 | } | |
1307 | ||
1308 | static int bgp_peer_conf_if_to_su_update_v6(struct peer *peer, | |
1309 | struct interface *ifp) | |
1310 | { | |
1311 | struct nbr_connected *ifc_nbr; | |
1312 | ||
1313 | /* Have we learnt the peer's IPv6 link-local address? */ | |
1314 | if (ifp->nbr_connected | |
1315 | && (ifc_nbr = listnode_head(ifp->nbr_connected))) { | |
1316 | peer->su.sa.sa_family = AF_INET6; | |
1317 | memcpy(&peer->su.sin6.sin6_addr, &ifc_nbr->address->u.prefix, | |
1318 | sizeof(struct in6_addr)); | |
a80beece | 1319 | #ifdef SIN6_LEN |
d62a17ae | 1320 | peer->su.sin6.sin6_len = sizeof(struct sockaddr_in6); |
a80beece | 1321 | #endif |
d62a17ae | 1322 | peer->su.sin6.sin6_scope_id = ifp->ifindex; |
1323 | return 1; | |
1324 | } | |
8ffedcea | 1325 | |
d62a17ae | 1326 | return 0; |
89ca90fa | 1327 | } |
1328 | ||
1329 | /* | |
1330 | * Set or reset the peer address socketunion structure based on the | |
1331 | * learnt/derived peer address. If the address has changed, update the | |
1332 | * password on the listen socket, if needed. | |
1333 | */ | |
d62a17ae | 1334 | void bgp_peer_conf_if_to_su_update(struct peer *peer) |
1335 | { | |
1336 | struct interface *ifp; | |
1337 | int prev_family; | |
1338 | int peer_addr_updated = 0; | |
1339 | ||
1340 | if (!peer->conf_if) | |
1341 | return; | |
1342 | ||
d12b745c DS |
1343 | /* |
1344 | * Our peer structure is stored in the bgp->peerhash | |
1345 | * release it before we modify anything. | |
1346 | */ | |
1347 | hash_release(peer->bgp->peerhash, peer); | |
1348 | ||
d62a17ae | 1349 | prev_family = peer->su.sa.sa_family; |
1350 | if ((ifp = if_lookup_by_name(peer->conf_if, peer->bgp->vrf_id))) { | |
1351 | peer->ifp = ifp; | |
1352 | /* If BGP unnumbered is not "v6only", we first see if we can | |
1353 | * derive the | |
1354 | * peer's IPv4 address. | |
1355 | */ | |
1356 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_IFPEER_V6ONLY)) | |
1357 | peer_addr_updated = | |
1358 | bgp_peer_conf_if_to_su_update_v4(peer, ifp); | |
1359 | ||
1360 | /* If "v6only" or we can't derive peer's IPv4 address, see if | |
1361 | * we've | |
1362 | * learnt the peer's IPv6 link-local address. This is from the | |
1363 | * source | |
1364 | * IPv6 address in router advertisement. | |
1365 | */ | |
1366 | if (!peer_addr_updated) | |
1367 | peer_addr_updated = | |
1368 | bgp_peer_conf_if_to_su_update_v6(peer, ifp); | |
1369 | } | |
1370 | /* If we could derive the peer address, we may need to install the | |
1371 | * password | |
1372 | * configured for the peer, if any, on the listen socket. Otherwise, | |
1373 | * mark | |
1374 | * that peer's address is not available and uninstall the password, if | |
1375 | * needed. | |
1376 | */ | |
1377 | if (peer_addr_updated) { | |
a14810f4 PM |
1378 | if (CHECK_FLAG(peer->flags, PEER_FLAG_PASSWORD) |
1379 | && prev_family == AF_UNSPEC) | |
d62a17ae | 1380 | bgp_md5_set(peer); |
1381 | } else { | |
a14810f4 PM |
1382 | if (CHECK_FLAG(peer->flags, PEER_FLAG_PASSWORD) |
1383 | && prev_family != AF_UNSPEC) | |
d62a17ae | 1384 | bgp_md5_unset(peer); |
1385 | peer->su.sa.sa_family = AF_UNSPEC; | |
1386 | memset(&peer->su.sin6.sin6_addr, 0, sizeof(struct in6_addr)); | |
1387 | } | |
1388 | ||
d12b745c DS |
1389 | /* |
1390 | * Since our su changed we need to del/add peer to the peerhash | |
1391 | */ | |
d62a17ae | 1392 | hash_get(peer->bgp->peerhash, peer, hash_alloc_intern); |
a80beece DS |
1393 | } |
1394 | ||
318cac96 DW |
1395 | static void bgp_recalculate_afi_safi_bestpaths(struct bgp *bgp, afi_t afi, |
1396 | safi_t safi) | |
1397 | { | |
1398 | struct bgp_node *rn, *nrn; | |
1399 | ||
1400 | for (rn = bgp_table_top(bgp->rib[afi][safi]); rn; | |
1401 | rn = bgp_route_next(rn)) { | |
1402 | if (rn->info != NULL) { | |
1403 | /* Special handling for 2-level routing | |
1404 | * tables. */ | |
a4d82a8a | 1405 | if (safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP |
318cac96 | 1406 | || safi == SAFI_EVPN) { |
a4d82a8a PZ |
1407 | for (nrn = bgp_table_top( |
1408 | (struct bgp_table *)(rn->info)); | |
1409 | nrn; nrn = bgp_route_next(nrn)) | |
1410 | bgp_process(bgp, nrn, afi, safi); | |
318cac96 DW |
1411 | } else |
1412 | bgp_process(bgp, rn, afi, safi); | |
1413 | } | |
1414 | } | |
1415 | } | |
1416 | ||
06370dac DW |
1417 | /* Force a bestpath recalculation for all prefixes. This is used |
1418 | * when 'bgp bestpath' commands are entered. | |
1419 | */ | |
d62a17ae | 1420 | void bgp_recalculate_all_bestpaths(struct bgp *bgp) |
1421 | { | |
1422 | afi_t afi; | |
1423 | safi_t safi; | |
d62a17ae | 1424 | |
05c7a1cc QY |
1425 | FOREACH_AFI_SAFI (afi, safi) { |
1426 | bgp_recalculate_afi_safi_bestpaths(bgp, afi, safi); | |
d62a17ae | 1427 | } |
06370dac DW |
1428 | } |
1429 | ||
718e3744 | 1430 | /* Create new BGP peer. */ |
d62a17ae | 1431 | struct peer *peer_create(union sockunion *su, const char *conf_if, |
1432 | struct bgp *bgp, as_t local_as, as_t remote_as, | |
1433 | int as_type, afi_t afi, safi_t safi, | |
1434 | struct peer_group *group) | |
1435 | { | |
1436 | int active; | |
1437 | struct peer *peer; | |
1438 | char buf[SU_ADDRSTRLEN]; | |
1439 | ||
1440 | peer = peer_new(bgp); | |
1441 | if (conf_if) { | |
1442 | peer->conf_if = XSTRDUP(MTYPE_PEER_CONF_IF, conf_if); | |
1443 | bgp_peer_conf_if_to_su_update(peer); | |
1444 | if (peer->host) | |
1445 | XFREE(MTYPE_BGP_PEER_HOST, peer->host); | |
1446 | peer->host = XSTRDUP(MTYPE_BGP_PEER_HOST, conf_if); | |
1447 | } else if (su) { | |
1448 | peer->su = *su; | |
1449 | sockunion2str(su, buf, SU_ADDRSTRLEN); | |
1450 | if (peer->host) | |
1451 | XFREE(MTYPE_BGP_PEER_HOST, peer->host); | |
1452 | peer->host = XSTRDUP(MTYPE_BGP_PEER_HOST, buf); | |
1453 | } | |
1454 | peer->local_as = local_as; | |
1455 | peer->as = remote_as; | |
1456 | peer->as_type = as_type; | |
1457 | peer->local_id = bgp->router_id; | |
1458 | peer->v_holdtime = bgp->default_holdtime; | |
1459 | peer->v_keepalive = bgp->default_keepalive; | |
b90a8e13 PM |
1460 | peer->v_routeadv = (peer_sort(peer) == BGP_PEER_IBGP) |
1461 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
1462 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 1463 | |
1464 | peer = peer_lock(peer); /* bgp peer list reference */ | |
1465 | peer->group = group; | |
1466 | listnode_add_sort(bgp->peer, peer); | |
1467 | hash_get(bgp->peerhash, peer, hash_alloc_intern); | |
1468 | ||
4961a5a2 | 1469 | /* Adjust update-group coalesce timer heuristics for # peers. */ |
37a333fe | 1470 | if (bgp->heuristic_coalesce) { |
14b8641a QY |
1471 | long ct = BGP_DEFAULT_SUBGROUP_COALESCE_TIME |
1472 | + (bgp->peer->count | |
1473 | * BGP_PEER_ADJUST_SUBGROUP_COALESCE_TIME); | |
1474 | bgp->coalesce_time = MIN(BGP_MAX_SUBGROUP_COALESCE_TIME, ct); | |
1475 | } | |
4961a5a2 | 1476 | |
d62a17ae | 1477 | active = peer_active(peer); |
1478 | ||
1479 | /* Last read and reset time set */ | |
1480 | peer->readtime = peer->resettime = bgp_clock(); | |
1481 | ||
1482 | /* Default TTL set. */ | |
1483 | peer->ttl = (peer->sort == BGP_PEER_IBGP) ? MAXTTL : 1; | |
1484 | ||
1485 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); | |
1486 | ||
1487 | if (afi && safi) { | |
1488 | peer->afc[afi][safi] = 1; | |
1489 | peer_af_create(peer, afi, safi); | |
1490 | } | |
1491 | ||
f26845f9 QY |
1492 | /* auto shutdown if configured */ |
1493 | if (bgp->autoshutdown) | |
1494 | peer_flag_set(peer, PEER_FLAG_SHUTDOWN); | |
d62a17ae | 1495 | /* Set up peer's events and timers. */ |
f26845f9 | 1496 | else if (!active && peer_active(peer)) |
d62a17ae | 1497 | bgp_timer_set(peer); |
1498 | ||
1499 | return peer; | |
718e3744 | 1500 | } |
1501 | ||
dd793e4a | 1502 | /* Make accept BGP peer. This function is only called from the test code */ |
d62a17ae | 1503 | struct peer *peer_create_accept(struct bgp *bgp) |
eb821189 | 1504 | { |
d62a17ae | 1505 | struct peer *peer; |
eb821189 | 1506 | |
d62a17ae | 1507 | peer = peer_new(bgp); |
1ff9a340 | 1508 | |
d62a17ae | 1509 | peer = peer_lock(peer); /* bgp peer list reference */ |
1510 | listnode_add_sort(bgp->peer, peer); | |
eb821189 | 1511 | |
d62a17ae | 1512 | return peer; |
eb821189 | 1513 | } |
1514 | ||
318cac96 DW |
1515 | /* |
1516 | * Return true if we have a peer configured to use this afi/safi | |
1517 | */ | |
1518 | int bgp_afi_safi_peer_exists(struct bgp *bgp, afi_t afi, safi_t safi) | |
1519 | { | |
1520 | struct listnode *node; | |
1521 | struct peer *peer; | |
1522 | ||
1523 | for (ALL_LIST_ELEMENTS_RO(bgp->peer, node, peer)) { | |
1524 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE)) | |
1525 | continue; | |
1526 | ||
1527 | if (peer->afc[afi][safi]) | |
1528 | return 1; | |
1529 | } | |
1530 | ||
1531 | return 0; | |
1532 | } | |
1533 | ||
718e3744 | 1534 | /* Change peer's AS number. */ |
d62a17ae | 1535 | void peer_as_change(struct peer *peer, as_t as, int as_specified) |
1536 | { | |
1537 | bgp_peer_sort_t type; | |
d62a17ae | 1538 | |
1539 | /* Stop peer. */ | |
1540 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
1541 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
1542 | peer->last_reset = PEER_DOWN_REMOTE_AS_CHANGE; | |
1543 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
1544 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
1545 | } else | |
1546 | bgp_session_reset(peer); | |
1547 | } | |
1548 | type = peer_sort(peer); | |
1549 | peer->as = as; | |
1550 | peer->as_type = as_specified; | |
1551 | ||
1552 | if (bgp_config_check(peer->bgp, BGP_CONFIG_CONFEDERATION) | |
1553 | && !bgp_confederation_peers_check(peer->bgp, as) | |
1554 | && peer->bgp->as != as) | |
1555 | peer->local_as = peer->bgp->confed_id; | |
1556 | else | |
1557 | peer->local_as = peer->bgp->as; | |
1558 | ||
1559 | /* Advertisement-interval reset */ | |
b90a8e13 PM |
1560 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_ROUTEADV)) { |
1561 | peer->v_routeadv = (peer_sort(peer) == BGP_PEER_IBGP) | |
1562 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
1563 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 1564 | } |
b90a8e13 | 1565 | |
d62a17ae | 1566 | /* TTL reset */ |
1567 | if (peer_sort(peer) == BGP_PEER_IBGP) | |
1568 | peer->ttl = MAXTTL; | |
1569 | else if (type == BGP_PEER_IBGP) | |
1570 | peer->ttl = 1; | |
1571 | ||
1572 | /* reflector-client reset */ | |
1573 | if (peer_sort(peer) != BGP_PEER_IBGP) { | |
1574 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_UNICAST], | |
1575 | PEER_FLAG_REFLECTOR_CLIENT); | |
1576 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_MULTICAST], | |
1577 | PEER_FLAG_REFLECTOR_CLIENT); | |
1578 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_LABELED_UNICAST], | |
1579 | PEER_FLAG_REFLECTOR_CLIENT); | |
1580 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_MPLS_VPN], | |
1581 | PEER_FLAG_REFLECTOR_CLIENT); | |
1582 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_ENCAP], | |
1583 | PEER_FLAG_REFLECTOR_CLIENT); | |
7c40bf39 | 1584 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_FLOWSPEC], |
1585 | PEER_FLAG_REFLECTOR_CLIENT); | |
d62a17ae | 1586 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_UNICAST], |
1587 | PEER_FLAG_REFLECTOR_CLIENT); | |
1588 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_MULTICAST], | |
1589 | PEER_FLAG_REFLECTOR_CLIENT); | |
1590 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_LABELED_UNICAST], | |
1591 | PEER_FLAG_REFLECTOR_CLIENT); | |
1592 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_MPLS_VPN], | |
1593 | PEER_FLAG_REFLECTOR_CLIENT); | |
1594 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_ENCAP], | |
1595 | PEER_FLAG_REFLECTOR_CLIENT); | |
7c40bf39 | 1596 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_FLOWSPEC], |
1597 | PEER_FLAG_REFLECTOR_CLIENT); | |
d62a17ae | 1598 | UNSET_FLAG(peer->af_flags[AFI_L2VPN][SAFI_EVPN], |
1599 | PEER_FLAG_REFLECTOR_CLIENT); | |
1600 | } | |
1601 | ||
1602 | /* local-as reset */ | |
1603 | if (peer_sort(peer) != BGP_PEER_EBGP) { | |
1604 | peer->change_local_as = 0; | |
a14810f4 PM |
1605 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS); |
1606 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
1607 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
d62a17ae | 1608 | } |
718e3744 | 1609 | } |
1610 | ||
1611 | /* If peer does not exist, create new one. If peer already exists, | |
1612 | set AS number to the peer. */ | |
d62a17ae | 1613 | int peer_remote_as(struct bgp *bgp, union sockunion *su, const char *conf_if, |
1614 | as_t *as, int as_type, afi_t afi, safi_t safi) | |
1615 | { | |
1616 | struct peer *peer; | |
1617 | as_t local_as; | |
1618 | ||
1619 | if (conf_if) | |
1620 | peer = peer_lookup_by_conf_if(bgp, conf_if); | |
1621 | else | |
1622 | peer = peer_lookup(bgp, su); | |
1623 | ||
1624 | if (peer) { | |
1625 | /* Not allowed for a dynamic peer. */ | |
1626 | if (peer_dynamic_neighbor(peer)) { | |
1627 | *as = peer->as; | |
1628 | return BGP_ERR_INVALID_FOR_DYNAMIC_PEER; | |
1629 | } | |
718e3744 | 1630 | |
d62a17ae | 1631 | /* When this peer is a member of peer-group. */ |
1632 | if (peer->group) { | |
1633 | if (peer->group->conf->as) { | |
1634 | /* Return peer group's AS number. */ | |
1635 | *as = peer->group->conf->as; | |
1636 | return BGP_ERR_PEER_GROUP_MEMBER; | |
1637 | } | |
1638 | if (peer_sort(peer->group->conf) == BGP_PEER_IBGP) { | |
1639 | if ((as_type != AS_INTERNAL) | |
1640 | && (bgp->as != *as)) { | |
1641 | *as = peer->as; | |
1642 | return BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT; | |
1643 | } | |
1644 | } else { | |
1645 | if ((as_type != AS_EXTERNAL) | |
1646 | && (bgp->as == *as)) { | |
1647 | *as = peer->as; | |
1648 | return BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT; | |
1649 | } | |
1650 | } | |
1651 | } | |
93406d87 | 1652 | |
d62a17ae | 1653 | /* Existing peer's AS number change. */ |
1654 | if (((peer->as_type == AS_SPECIFIED) && peer->as != *as) | |
1655 | || (peer->as_type != as_type)) | |
1656 | peer_as_change(peer, *as, as_type); | |
1657 | } else { | |
1658 | if (conf_if) | |
1659 | return BGP_ERR_NO_INTERFACE_CONFIG; | |
1660 | ||
1661 | /* If the peer is not part of our confederation, and its not an | |
1662 | iBGP peer then spoof the source AS */ | |
1663 | if (bgp_config_check(bgp, BGP_CONFIG_CONFEDERATION) | |
1664 | && !bgp_confederation_peers_check(bgp, *as) | |
1665 | && bgp->as != *as) | |
1666 | local_as = bgp->confed_id; | |
1667 | else | |
1668 | local_as = bgp->as; | |
1669 | ||
1670 | /* If this is IPv4 unicast configuration and "no bgp default | |
1671 | ipv4-unicast" is specified. */ | |
1672 | ||
1673 | if (bgp_flag_check(bgp, BGP_FLAG_NO_DEFAULT_IPV4) | |
1674 | && afi == AFI_IP && safi == SAFI_UNICAST) | |
1675 | peer_create(su, conf_if, bgp, local_as, *as, as_type, 0, | |
1676 | 0, NULL); | |
1677 | else | |
1678 | peer_create(su, conf_if, bgp, local_as, *as, as_type, | |
1679 | afi, safi, NULL); | |
1680 | } | |
718e3744 | 1681 | |
d62a17ae | 1682 | return 0; |
1683 | } | |
718e3744 | 1684 | |
9790f44f DS |
1685 | static void peer_group2peer_config_copy_af(struct peer_group *group, |
1686 | struct peer *peer, afi_t afi, | |
1687 | safi_t safi) | |
1688 | { | |
1689 | int in = FILTER_IN; | |
1690 | int out = FILTER_OUT; | |
4c391142 | 1691 | uint32_t flags_tmp; |
e7103a96 PM |
1692 | uint32_t pflags_ovrd; |
1693 | uint8_t *pfilter_ovrd; | |
9790f44f | 1694 | struct peer *conf; |
9790f44f DS |
1695 | |
1696 | conf = group->conf; | |
e7103a96 PM |
1697 | pflags_ovrd = peer->af_flags_override[afi][safi]; |
1698 | pfilter_ovrd = &peer->filter_override[afi][safi][in]; | |
9790f44f DS |
1699 | |
1700 | /* peer af_flags apply */ | |
4c391142 PM |
1701 | flags_tmp = conf->af_flags[afi][safi] & ~pflags_ovrd; |
1702 | flags_tmp ^= conf->af_flags_invert[afi][safi] | |
1703 | ^ peer->af_flags_invert[afi][safi]; | |
1704 | flags_tmp &= ~pflags_ovrd; | |
1705 | ||
1706 | UNSET_FLAG(peer->af_flags[afi][safi], ~pflags_ovrd); | |
1707 | SET_FLAG(peer->af_flags[afi][safi], flags_tmp); | |
1708 | SET_FLAG(peer->af_flags_invert[afi][safi], | |
1709 | conf->af_flags_invert[afi][safi]); | |
9790f44f DS |
1710 | |
1711 | /* maximum-prefix */ | |
e7103a96 PM |
1712 | if (!CHECK_FLAG(pflags_ovrd, PEER_FLAG_MAX_PREFIX)) { |
1713 | PEER_ATTR_INHERIT(peer, group, pmax[afi][safi]); | |
1714 | PEER_ATTR_INHERIT(peer, group, pmax_threshold[afi][safi]); | |
1715 | PEER_ATTR_INHERIT(peer, group, pmax_restart[afi][safi]); | |
1716 | } | |
9790f44f DS |
1717 | |
1718 | /* allowas-in */ | |
e7103a96 PM |
1719 | if (!CHECK_FLAG(pflags_ovrd, PEER_FLAG_ALLOWAS_IN)) |
1720 | PEER_ATTR_INHERIT(peer, group, allowas_in[afi][safi]); | |
9790f44f DS |
1721 | |
1722 | /* weight */ | |
e7103a96 PM |
1723 | if (!CHECK_FLAG(pflags_ovrd, PEER_FLAG_WEIGHT)) |
1724 | PEER_ATTR_INHERIT(peer, group, weight[afi][safi]); | |
9790f44f DS |
1725 | |
1726 | /* default-originate route-map */ | |
e7103a96 PM |
1727 | if (!CHECK_FLAG(pflags_ovrd, PEER_FLAG_DEFAULT_ORIGINATE)) { |
1728 | PEER_STR_ATTR_INHERIT(peer, group, default_rmap[afi][safi].name, | |
1729 | MTYPE_ROUTE_MAP_NAME); | |
1730 | PEER_ATTR_INHERIT(peer, group, default_rmap[afi][safi].map); | |
9790f44f DS |
1731 | } |
1732 | ||
1733 | /* inbound filter apply */ | |
e7103a96 PM |
1734 | if (!CHECK_FLAG(pfilter_ovrd[in], PEER_FT_DISTRIBUTE_LIST)) { |
1735 | PEER_STR_ATTR_INHERIT(peer, group, | |
1736 | filter[afi][safi].dlist[in].name, | |
1737 | MTYPE_BGP_FILTER_NAME); | |
1738 | PEER_ATTR_INHERIT(peer, group, | |
1739 | filter[afi][safi].dlist[in].alist); | |
9790f44f DS |
1740 | } |
1741 | ||
e7103a96 PM |
1742 | if (!CHECK_FLAG(pfilter_ovrd[in], PEER_FT_PREFIX_LIST)) { |
1743 | PEER_STR_ATTR_INHERIT(peer, group, | |
1744 | filter[afi][safi].plist[in].name, | |
1745 | MTYPE_BGP_FILTER_NAME); | |
1746 | PEER_ATTR_INHERIT(peer, group, | |
1747 | filter[afi][safi].plist[in].plist); | |
9790f44f DS |
1748 | } |
1749 | ||
e7103a96 PM |
1750 | if (!CHECK_FLAG(pfilter_ovrd[in], PEER_FT_FILTER_LIST)) { |
1751 | PEER_STR_ATTR_INHERIT(peer, group, | |
1752 | filter[afi][safi].aslist[in].name, | |
1753 | MTYPE_BGP_FILTER_NAME); | |
1754 | PEER_ATTR_INHERIT(peer, group, | |
1755 | filter[afi][safi].aslist[in].aslist); | |
9790f44f DS |
1756 | } |
1757 | ||
e7103a96 PM |
1758 | if (!CHECK_FLAG(pfilter_ovrd[RMAP_IN], PEER_FT_ROUTE_MAP)) { |
1759 | PEER_STR_ATTR_INHERIT(peer, group, | |
1760 | filter[afi][safi].map[in].name, | |
1761 | MTYPE_BGP_FILTER_NAME); | |
1762 | PEER_ATTR_INHERIT(peer, group, | |
1763 | filter[afi][safi].map[RMAP_IN].map); | |
9790f44f DS |
1764 | } |
1765 | ||
1766 | /* outbound filter apply */ | |
e7103a96 PM |
1767 | if (!CHECK_FLAG(pfilter_ovrd[out], PEER_FT_DISTRIBUTE_LIST)) { |
1768 | PEER_STR_ATTR_INHERIT(peer, group, | |
1769 | filter[afi][safi].dlist[out].name, | |
1770 | MTYPE_BGP_FILTER_NAME); | |
1771 | PEER_ATTR_INHERIT(peer, group, | |
1772 | filter[afi][safi].dlist[out].alist); | |
9790f44f DS |
1773 | } |
1774 | ||
e7103a96 PM |
1775 | if (!CHECK_FLAG(pfilter_ovrd[out], PEER_FT_PREFIX_LIST)) { |
1776 | PEER_STR_ATTR_INHERIT(peer, group, | |
1777 | filter[afi][safi].plist[out].name, | |
1778 | MTYPE_BGP_FILTER_NAME); | |
1779 | PEER_ATTR_INHERIT(peer, group, | |
1780 | filter[afi][safi].plist[out].plist); | |
9790f44f DS |
1781 | } |
1782 | ||
e7103a96 PM |
1783 | if (!CHECK_FLAG(pfilter_ovrd[out], PEER_FT_FILTER_LIST)) { |
1784 | PEER_STR_ATTR_INHERIT(peer, group, | |
1785 | filter[afi][safi].aslist[out].name, | |
1786 | MTYPE_BGP_FILTER_NAME); | |
1787 | PEER_ATTR_INHERIT(peer, group, | |
1788 | filter[afi][safi].aslist[out].aslist); | |
1789 | } | |
1790 | ||
1791 | if (!CHECK_FLAG(pfilter_ovrd[RMAP_OUT], PEER_FT_ROUTE_MAP)) { | |
1792 | PEER_STR_ATTR_INHERIT(peer, group, | |
1793 | filter[afi][safi].map[RMAP_OUT].name, | |
1794 | MTYPE_BGP_FILTER_NAME); | |
1795 | PEER_ATTR_INHERIT(peer, group, | |
1796 | filter[afi][safi].map[RMAP_OUT].map); | |
1797 | } | |
1798 | ||
1799 | /* nondirectional filter apply */ | |
1800 | if (!CHECK_FLAG(pfilter_ovrd[0], PEER_FT_UNSUPPRESS_MAP)) { | |
1801 | PEER_STR_ATTR_INHERIT(peer, group, filter[afi][safi].usmap.name, | |
1802 | MTYPE_BGP_FILTER_NAME); | |
1803 | PEER_ATTR_INHERIT(peer, group, filter[afi][safi].usmap.map); | |
9790f44f DS |
1804 | } |
1805 | } | |
1806 | ||
1807 | static int peer_activate_af(struct peer *peer, afi_t afi, safi_t safi) | |
d62a17ae | 1808 | { |
1809 | int active; | |
718e3744 | 1810 | |
d62a17ae | 1811 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
1812 | zlog_err("%s was called for peer-group %s", __func__, | |
1813 | peer->host); | |
1814 | return 1; | |
1815 | } | |
3f9c7369 | 1816 | |
d62a17ae | 1817 | /* Do not activate a peer for both SAFI_UNICAST and SAFI_LABELED_UNICAST |
1818 | */ | |
1819 | if ((safi == SAFI_UNICAST && peer->afc[afi][SAFI_LABELED_UNICAST]) | |
1820 | || (safi == SAFI_LABELED_UNICAST && peer->afc[afi][SAFI_UNICAST])) | |
1821 | return BGP_ERR_PEER_SAFI_CONFLICT; | |
1822 | ||
1823 | /* Nothing to do if we've already activated this peer */ | |
1824 | if (peer->afc[afi][safi]) | |
1825 | return 0; | |
1826 | ||
1827 | if (peer_af_create(peer, afi, safi) == NULL) | |
1828 | return 1; | |
1829 | ||
1830 | active = peer_active(peer); | |
1831 | peer->afc[afi][safi] = 1; | |
1832 | ||
9790f44f | 1833 | if (peer->group) |
a4d82a8a | 1834 | peer_group2peer_config_copy_af(peer->group, peer, afi, safi); |
9790f44f | 1835 | |
d62a17ae | 1836 | if (!active && peer_active(peer)) { |
1837 | bgp_timer_set(peer); | |
1838 | } else { | |
1839 | if (peer->status == Established) { | |
1840 | if (CHECK_FLAG(peer->cap, PEER_CAP_DYNAMIC_RCV)) { | |
1841 | peer->afc_adv[afi][safi] = 1; | |
1842 | bgp_capability_send(peer, afi, safi, | |
1843 | CAPABILITY_CODE_MP, | |
1844 | CAPABILITY_ACTION_SET); | |
1845 | if (peer->afc_recv[afi][safi]) { | |
1846 | peer->afc_nego[afi][safi] = 1; | |
1847 | bgp_announce_route(peer, afi, safi); | |
1848 | } | |
1849 | } else { | |
1850 | peer->last_reset = PEER_DOWN_AF_ACTIVATE; | |
1851 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
1852 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
1853 | } | |
1854 | } | |
64c1a9b5 DS |
1855 | if (peer->status == OpenSent || peer->status == OpenConfirm) { |
1856 | peer->last_reset = PEER_DOWN_AF_ACTIVATE; | |
1857 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
1858 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
1859 | } | |
d62a17ae | 1860 | } |
04b6bdc0 | 1861 | |
d62a17ae | 1862 | return 0; |
1863 | } | |
9e08021c | 1864 | |
d62a17ae | 1865 | /* Activate the peer or peer group for specified AFI and SAFI. */ |
1866 | int peer_activate(struct peer *peer, afi_t afi, safi_t safi) | |
1867 | { | |
1868 | int ret = 0; | |
1869 | struct peer_group *group; | |
1870 | struct listnode *node, *nnode; | |
1871 | struct peer *tmp_peer; | |
318cac96 | 1872 | struct bgp *bgp; |
d62a17ae | 1873 | |
1874 | /* Nothing to do if we've already activated this peer */ | |
1875 | if (peer->afc[afi][safi]) | |
1876 | return ret; | |
1877 | ||
318cac96 DW |
1878 | bgp = peer->bgp; |
1879 | ||
d62a17ae | 1880 | /* This is a peer-group so activate all of the members of the |
1881 | * peer-group as well */ | |
1882 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
1883 | ||
1884 | /* Do not activate a peer for both SAFI_UNICAST and | |
1885 | * SAFI_LABELED_UNICAST */ | |
1886 | if ((safi == SAFI_UNICAST | |
1887 | && peer->afc[afi][SAFI_LABELED_UNICAST]) | |
1888 | || (safi == SAFI_LABELED_UNICAST | |
1889 | && peer->afc[afi][SAFI_UNICAST])) | |
1890 | return BGP_ERR_PEER_SAFI_CONFLICT; | |
1891 | ||
1892 | peer->afc[afi][safi] = 1; | |
1893 | group = peer->group; | |
1894 | ||
1895 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, tmp_peer)) { | |
9790f44f | 1896 | ret |= peer_activate_af(tmp_peer, afi, safi); |
d62a17ae | 1897 | } |
1898 | } else { | |
9790f44f | 1899 | ret |= peer_activate_af(peer, afi, safi); |
d62a17ae | 1900 | } |
718e3744 | 1901 | |
a4d82a8a PZ |
1902 | /* If this is the first peer to be activated for this |
1903 | * afi/labeled-unicast recalc bestpaths to trigger label allocation */ | |
1904 | if (safi == SAFI_LABELED_UNICAST | |
1905 | && !bgp->allocate_mpls_labels[afi][SAFI_UNICAST]) { | |
318cac96 DW |
1906 | |
1907 | if (BGP_DEBUG(zebra, ZEBRA)) | |
a4d82a8a PZ |
1908 | zlog_info( |
1909 | "peer(s) are now active for labeled-unicast, allocate MPLS labels"); | |
318cac96 DW |
1910 | |
1911 | bgp->allocate_mpls_labels[afi][SAFI_UNICAST] = 1; | |
1912 | bgp_recalculate_afi_safi_bestpaths(bgp, afi, SAFI_UNICAST); | |
1913 | } | |
1914 | ||
b98f7728 PG |
1915 | if (safi == SAFI_FLOWSPEC) { |
1916 | /* connect to table manager */ | |
6818e7e5 | 1917 | bgp_zebra_init_tm_connect(bgp); |
b98f7728 | 1918 | } |
d62a17ae | 1919 | return ret; |
718e3744 | 1920 | } |
6b0655a2 | 1921 | |
d62a17ae | 1922 | static int non_peergroup_deactivate_af(struct peer *peer, afi_t afi, |
1923 | safi_t safi) | |
718e3744 | 1924 | { |
d62a17ae | 1925 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
1926 | zlog_err("%s was called for peer-group %s", __func__, | |
1927 | peer->host); | |
1928 | return 1; | |
1929 | } | |
718e3744 | 1930 | |
d62a17ae | 1931 | /* Nothing to do if we've already deactivated this peer */ |
1932 | if (!peer->afc[afi][safi]) | |
1933 | return 0; | |
718e3744 | 1934 | |
d62a17ae | 1935 | /* De-activate the address family configuration. */ |
1936 | peer->afc[afi][safi] = 0; | |
718e3744 | 1937 | |
d62a17ae | 1938 | if (peer_af_delete(peer, afi, safi) != 0) { |
1939 | zlog_err("couldn't delete af structure for peer %s", | |
1940 | peer->host); | |
1941 | return 1; | |
1942 | } | |
718e3744 | 1943 | |
d62a17ae | 1944 | if (peer->status == Established) { |
1945 | if (CHECK_FLAG(peer->cap, PEER_CAP_DYNAMIC_RCV)) { | |
1946 | peer->afc_adv[afi][safi] = 0; | |
1947 | peer->afc_nego[afi][safi] = 0; | |
1948 | ||
1949 | if (peer_active_nego(peer)) { | |
1950 | bgp_capability_send(peer, afi, safi, | |
1951 | CAPABILITY_CODE_MP, | |
1952 | CAPABILITY_ACTION_UNSET); | |
1953 | bgp_clear_route(peer, afi, safi); | |
1954 | peer->pcount[afi][safi] = 0; | |
1955 | } else { | |
1956 | peer->last_reset = PEER_DOWN_NEIGHBOR_DELETE; | |
1957 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
1958 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
1959 | } | |
1960 | } else { | |
1961 | peer->last_reset = PEER_DOWN_NEIGHBOR_DELETE; | |
1962 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
1963 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
1964 | } | |
1965 | } | |
718e3744 | 1966 | |
d62a17ae | 1967 | return 0; |
1968 | } | |
718e3744 | 1969 | |
d62a17ae | 1970 | int peer_deactivate(struct peer *peer, afi_t afi, safi_t safi) |
718e3744 | 1971 | { |
d62a17ae | 1972 | int ret = 0; |
1973 | struct peer_group *group; | |
1974 | struct peer *tmp_peer; | |
1975 | struct listnode *node, *nnode; | |
318cac96 | 1976 | struct bgp *bgp; |
718e3744 | 1977 | |
d62a17ae | 1978 | /* Nothing to do if we've already de-activated this peer */ |
1979 | if (!peer->afc[afi][safi]) | |
1980 | return ret; | |
718e3744 | 1981 | |
d62a17ae | 1982 | /* This is a peer-group so de-activate all of the members of the |
1983 | * peer-group as well */ | |
1984 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
1985 | peer->afc[afi][safi] = 0; | |
1986 | group = peer->group; | |
718e3744 | 1987 | |
d62a17ae | 1988 | if (peer_af_delete(peer, afi, safi) != 0) { |
1989 | zlog_err("couldn't delete af structure for peer %s", | |
1990 | peer->host); | |
1991 | } | |
0299c004 | 1992 | |
d62a17ae | 1993 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, tmp_peer)) { |
1994 | ret |= non_peergroup_deactivate_af(tmp_peer, afi, safi); | |
1995 | } | |
1996 | } else { | |
1997 | ret |= non_peergroup_deactivate_af(peer, afi, safi); | |
1998 | } | |
718e3744 | 1999 | |
318cac96 DW |
2000 | bgp = peer->bgp; |
2001 | ||
a4d82a8a PZ |
2002 | /* If this is the last peer to be deactivated for this |
2003 | * afi/labeled-unicast recalc bestpaths to trigger label deallocation */ | |
2004 | if (safi == SAFI_LABELED_UNICAST | |
2005 | && bgp->allocate_mpls_labels[afi][SAFI_UNICAST] | |
2006 | && !bgp_afi_safi_peer_exists(bgp, afi, safi)) { | |
318cac96 DW |
2007 | |
2008 | if (BGP_DEBUG(zebra, ZEBRA)) | |
a4d82a8a PZ |
2009 | zlog_info( |
2010 | "peer(s) are no longer active for labeled-unicast, deallocate MPLS labels"); | |
318cac96 DW |
2011 | |
2012 | bgp->allocate_mpls_labels[afi][SAFI_UNICAST] = 0; | |
2013 | bgp_recalculate_afi_safi_bestpaths(bgp, afi, SAFI_UNICAST); | |
2014 | } | |
d62a17ae | 2015 | return ret; |
2016 | } | |
718e3744 | 2017 | |
d62a17ae | 2018 | int peer_afc_set(struct peer *peer, afi_t afi, safi_t safi, int enable) |
2019 | { | |
2020 | if (enable) | |
2021 | return peer_activate(peer, afi, safi); | |
2022 | else | |
2023 | return peer_deactivate(peer, afi, safi); | |
718e3744 | 2024 | } |
2025 | ||
d62a17ae | 2026 | static void peer_nsf_stop(struct peer *peer) |
718e3744 | 2027 | { |
d62a17ae | 2028 | afi_t afi; |
2029 | safi_t safi; | |
718e3744 | 2030 | |
d62a17ae | 2031 | UNSET_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT); |
2032 | UNSET_FLAG(peer->sflags, PEER_STATUS_NSF_MODE); | |
718e3744 | 2033 | |
d62a17ae | 2034 | for (afi = AFI_IP; afi < AFI_MAX; afi++) |
a08ca0a7 | 2035 | for (safi = SAFI_UNICAST; safi <= SAFI_MPLS_VPN; safi++) |
d62a17ae | 2036 | peer->nsf[afi][safi] = 0; |
2037 | ||
2038 | if (peer->t_gr_restart) { | |
2039 | BGP_TIMER_OFF(peer->t_gr_restart); | |
2040 | if (bgp_debug_neighbor_events(peer)) | |
2041 | zlog_debug("%s graceful restart timer stopped", | |
2042 | peer->host); | |
1ff9a340 | 2043 | } |
d62a17ae | 2044 | if (peer->t_gr_stale) { |
2045 | BGP_TIMER_OFF(peer->t_gr_stale); | |
2046 | if (bgp_debug_neighbor_events(peer)) | |
2047 | zlog_debug( | |
2048 | "%s graceful restart stalepath timer stopped", | |
2049 | peer->host); | |
2050 | } | |
2051 | bgp_clear_route_all(peer); | |
2052 | } | |
718e3744 | 2053 | |
d62a17ae | 2054 | /* Delete peer from confguration. |
2055 | * | |
2056 | * The peer is moved to a dead-end "Deleted" neighbour-state, to allow | |
2057 | * it to "cool off" and refcounts to hit 0, at which state it is freed. | |
2058 | * | |
2059 | * This function /should/ take care to be idempotent, to guard against | |
2060 | * it being called multiple times through stray events that come in | |
2061 | * that happen to result in this function being called again. That | |
2062 | * said, getting here for a "Deleted" peer is a bug in the neighbour | |
2063 | * FSM. | |
2064 | */ | |
2065 | int peer_delete(struct peer *peer) | |
2066 | { | |
2067 | int i; | |
2068 | afi_t afi; | |
2069 | safi_t safi; | |
2070 | struct bgp *bgp; | |
2071 | struct bgp_filter *filter; | |
2072 | struct listnode *pn; | |
2073 | int accept_peer; | |
f14e6fdb | 2074 | |
d62a17ae | 2075 | assert(peer->status != Deleted); |
718e3744 | 2076 | |
d62a17ae | 2077 | bgp = peer->bgp; |
2078 | accept_peer = CHECK_FLAG(peer->sflags, PEER_STATUS_ACCEPT_PEER); | |
080b97f2 | 2079 | |
424ab01d QY |
2080 | bgp_reads_off(peer); |
2081 | bgp_writes_off(peer); | |
2082 | assert(!CHECK_FLAG(peer->thread_flags, PEER_THREAD_WRITES_ON)); | |
2083 | assert(!CHECK_FLAG(peer->thread_flags, PEER_THREAD_READS_ON)); | |
2084 | ||
d62a17ae | 2085 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT)) |
2086 | peer_nsf_stop(peer); | |
718e3744 | 2087 | |
d62a17ae | 2088 | SET_FLAG(peer->flags, PEER_FLAG_DELETE); |
718e3744 | 2089 | |
d62a17ae | 2090 | /* If this peer belongs to peer group, clear up the |
2091 | relationship. */ | |
2092 | if (peer->group) { | |
2093 | if (peer_dynamic_neighbor(peer)) | |
2094 | peer_drop_dynamic_neighbor(peer); | |
718e3744 | 2095 | |
d62a17ae | 2096 | if ((pn = listnode_lookup(peer->group->peer, peer))) { |
2097 | peer = peer_unlock( | |
2098 | peer); /* group->peer list reference */ | |
2099 | list_delete_node(peer->group->peer, pn); | |
2100 | } | |
2101 | peer->group = NULL; | |
2102 | } | |
718e3744 | 2103 | |
d62a17ae | 2104 | /* Withdraw all information from routing table. We can not use |
2105 | * BGP_EVENT_ADD (peer, BGP_Stop) at here. Because the event is | |
2106 | * executed after peer structure is deleted. | |
2107 | */ | |
2108 | peer->last_reset = PEER_DOWN_NEIGHBOR_DELETE; | |
2109 | bgp_stop(peer); | |
2110 | UNSET_FLAG(peer->flags, PEER_FLAG_DELETE); | |
2111 | ||
2112 | if (peer->doppelganger) { | |
2113 | peer->doppelganger->doppelganger = NULL; | |
2114 | peer->doppelganger = NULL; | |
2115 | } | |
718e3744 | 2116 | |
d62a17ae | 2117 | UNSET_FLAG(peer->sflags, PEER_STATUS_ACCEPT_PEER); |
2118 | bgp_fsm_change_status(peer, Deleted); | |
718e3744 | 2119 | |
d62a17ae | 2120 | /* Remove from NHT */ |
2121 | if (CHECK_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE)) | |
2122 | bgp_unlink_nexthop_by_peer(peer); | |
1ff9a340 | 2123 | |
d62a17ae | 2124 | /* Password configuration */ |
a14810f4 | 2125 | if (CHECK_FLAG(peer->flags, PEER_FLAG_PASSWORD)) { |
d62a17ae | 2126 | XFREE(MTYPE_PEER_PASSWORD, peer->password); |
1ff9a340 | 2127 | |
d62a17ae | 2128 | if (!accept_peer && !BGP_PEER_SU_UNSPEC(peer) |
2129 | && !CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
2130 | bgp_md5_unset(peer); | |
1ff9a340 | 2131 | } |
718e3744 | 2132 | |
d62a17ae | 2133 | bgp_timer_set(peer); /* stops all timers for Deleted */ |
718e3744 | 2134 | |
d62a17ae | 2135 | /* Delete from all peer list. */ |
2136 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP) | |
2137 | && (pn = listnode_lookup(bgp->peer, peer))) { | |
2138 | peer_unlock(peer); /* bgp peer list reference */ | |
2139 | list_delete_node(bgp->peer, pn); | |
2140 | hash_release(bgp->peerhash, peer); | |
2141 | } | |
718e3744 | 2142 | |
d62a17ae | 2143 | /* Buffers. */ |
2144 | if (peer->ibuf) { | |
424ab01d | 2145 | stream_fifo_free(peer->ibuf); |
d62a17ae | 2146 | peer->ibuf = NULL; |
2147 | } | |
f14e6fdb | 2148 | |
d62a17ae | 2149 | if (peer->obuf) { |
2150 | stream_fifo_free(peer->obuf); | |
2151 | peer->obuf = NULL; | |
2152 | } | |
f14e6fdb | 2153 | |
424ab01d | 2154 | if (peer->ibuf_work) { |
74ffbfe6 | 2155 | ringbuf_del(peer->ibuf_work); |
424ab01d QY |
2156 | peer->ibuf_work = NULL; |
2157 | } | |
2158 | ||
2159 | if (peer->obuf_work) { | |
2160 | stream_free(peer->obuf_work); | |
2161 | peer->obuf_work = NULL; | |
d62a17ae | 2162 | } |
f14e6fdb | 2163 | |
d62a17ae | 2164 | if (peer->scratch) { |
2165 | stream_free(peer->scratch); | |
2166 | peer->scratch = NULL; | |
2167 | } | |
f14e6fdb | 2168 | |
d62a17ae | 2169 | /* Local and remote addresses. */ |
2170 | if (peer->su_local) { | |
2171 | sockunion_free(peer->su_local); | |
2172 | peer->su_local = NULL; | |
2173 | } | |
f14e6fdb | 2174 | |
d62a17ae | 2175 | if (peer->su_remote) { |
2176 | sockunion_free(peer->su_remote); | |
2177 | peer->su_remote = NULL; | |
2178 | } | |
f14e6fdb | 2179 | |
d62a17ae | 2180 | /* Free filter related memory. */ |
05c7a1cc QY |
2181 | FOREACH_AFI_SAFI (afi, safi) { |
2182 | filter = &peer->filter[afi][safi]; | |
d62a17ae | 2183 | |
05c7a1cc QY |
2184 | for (i = FILTER_IN; i < FILTER_MAX; i++) { |
2185 | if (filter->dlist[i].name) { | |
2186 | XFREE(MTYPE_BGP_FILTER_NAME, | |
2187 | filter->dlist[i].name); | |
2188 | filter->dlist[i].name = NULL; | |
d62a17ae | 2189 | } |
2190 | ||
05c7a1cc QY |
2191 | if (filter->plist[i].name) { |
2192 | XFREE(MTYPE_BGP_FILTER_NAME, | |
2193 | filter->plist[i].name); | |
2194 | filter->plist[i].name = NULL; | |
d62a17ae | 2195 | } |
2196 | ||
05c7a1cc | 2197 | if (filter->aslist[i].name) { |
d62a17ae | 2198 | XFREE(MTYPE_BGP_FILTER_NAME, |
05c7a1cc QY |
2199 | filter->aslist[i].name); |
2200 | filter->aslist[i].name = NULL; | |
d62a17ae | 2201 | } |
05c7a1cc | 2202 | } |
d62a17ae | 2203 | |
05c7a1cc QY |
2204 | for (i = RMAP_IN; i < RMAP_MAX; i++) { |
2205 | if (filter->map[i].name) { | |
2206 | XFREE(MTYPE_BGP_FILTER_NAME, | |
2207 | filter->map[i].name); | |
2208 | filter->map[i].name = NULL; | |
d62a17ae | 2209 | } |
2210 | } | |
f14e6fdb | 2211 | |
05c7a1cc QY |
2212 | if (filter->usmap.name) { |
2213 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
2214 | filter->usmap.name = NULL; | |
2215 | } | |
2216 | ||
2217 | if (peer->default_rmap[afi][safi].name) { | |
2218 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
2219 | peer->default_rmap[afi][safi].name); | |
2220 | peer->default_rmap[afi][safi].name = NULL; | |
2221 | } | |
2222 | } | |
2223 | ||
a2addae8 RW |
2224 | FOREACH_AFI_SAFI (afi, safi) |
2225 | peer_af_delete(peer, afi, safi); | |
f14e6fdb | 2226 | |
d62a17ae | 2227 | if (peer->hostname) { |
2228 | XFREE(MTYPE_BGP_PEER_HOST, peer->hostname); | |
2229 | peer->hostname = NULL; | |
2230 | } | |
f14e6fdb | 2231 | |
d62a17ae | 2232 | if (peer->domainname) { |
2233 | XFREE(MTYPE_BGP_PEER_HOST, peer->domainname); | |
2234 | peer->domainname = NULL; | |
2235 | } | |
f14e6fdb | 2236 | |
d62a17ae | 2237 | peer_unlock(peer); /* initial reference */ |
f14e6fdb | 2238 | |
d62a17ae | 2239 | return 0; |
fe7d2a48 DS |
2240 | } |
2241 | ||
d62a17ae | 2242 | static int peer_group_cmp(struct peer_group *g1, struct peer_group *g2) |
2243 | { | |
2244 | return strcmp(g1->name, g2->name); | |
6aeb9e78 DS |
2245 | } |
2246 | ||
d62a17ae | 2247 | /* Peer group cofiguration. */ |
2248 | static struct peer_group *peer_group_new(void) | |
718e3744 | 2249 | { |
d62a17ae | 2250 | return (struct peer_group *)XCALLOC(MTYPE_PEER_GROUP, |
2251 | sizeof(struct peer_group)); | |
718e3744 | 2252 | } |
2253 | ||
d62a17ae | 2254 | static void peer_group_free(struct peer_group *group) |
718e3744 | 2255 | { |
d62a17ae | 2256 | XFREE(MTYPE_PEER_GROUP, group); |
718e3744 | 2257 | } |
2258 | ||
d62a17ae | 2259 | struct peer_group *peer_group_lookup(struct bgp *bgp, const char *name) |
718e3744 | 2260 | { |
d62a17ae | 2261 | struct peer_group *group; |
2262 | struct listnode *node, *nnode; | |
2263 | ||
2264 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
2265 | if (strcmp(group->name, name) == 0) | |
2266 | return group; | |
2267 | } | |
2268 | return NULL; | |
2269 | } | |
2270 | ||
2271 | struct peer_group *peer_group_get(struct bgp *bgp, const char *name) | |
2272 | { | |
2273 | struct peer_group *group; | |
2274 | afi_t afi; | |
2275 | ||
2276 | group = peer_group_lookup(bgp, name); | |
2277 | if (group) | |
2278 | return group; | |
2279 | ||
2280 | group = peer_group_new(); | |
2281 | group->bgp = bgp; | |
2282 | if (group->name) | |
2283 | XFREE(MTYPE_PEER_GROUP_HOST, group->name); | |
2284 | group->name = XSTRDUP(MTYPE_PEER_GROUP_HOST, name); | |
2285 | group->peer = list_new(); | |
2286 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
2287 | group->listen_range[afi] = list_new(); | |
2288 | group->conf = peer_new(bgp); | |
2289 | if (!bgp_flag_check(bgp, BGP_FLAG_NO_DEFAULT_IPV4)) | |
2290 | group->conf->afc[AFI_IP][SAFI_UNICAST] = 1; | |
2291 | if (group->conf->host) | |
2292 | XFREE(MTYPE_BGP_PEER_HOST, group->conf->host); | |
2293 | group->conf->host = XSTRDUP(MTYPE_BGP_PEER_HOST, name); | |
2294 | group->conf->group = group; | |
2295 | group->conf->as = 0; | |
2296 | group->conf->ttl = 1; | |
2297 | group->conf->gtsm_hops = 0; | |
2298 | group->conf->v_routeadv = BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 2299 | SET_FLAG(group->conf->sflags, PEER_STATUS_GROUP); |
2300 | listnode_add_sort(bgp->group, group); | |
718e3744 | 2301 | |
d62a17ae | 2302 | return group; |
718e3744 | 2303 | } |
2304 | ||
d62a17ae | 2305 | static void peer_group2peer_config_copy(struct peer_group *group, |
2306 | struct peer *peer) | |
ad4cbda1 | 2307 | { |
4c391142 | 2308 | uint32_t flags_tmp; |
d62a17ae | 2309 | struct peer *conf; |
ad4cbda1 | 2310 | |
d62a17ae | 2311 | conf = group->conf; |
ad4cbda1 | 2312 | |
d62a17ae | 2313 | /* remote-as */ |
2314 | if (conf->as) | |
2315 | peer->as = conf->as; | |
718e3744 | 2316 | |
a14810f4 PM |
2317 | /* local-as */ |
2318 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_LOCAL_AS)) | |
d62a17ae | 2319 | peer->change_local_as = conf->change_local_as; |
1758dbaa | 2320 | |
d62a17ae | 2321 | /* TTL */ |
2322 | peer->ttl = conf->ttl; | |
518f0eb1 | 2323 | |
d62a17ae | 2324 | /* GTSM hops */ |
2325 | peer->gtsm_hops = conf->gtsm_hops; | |
ad12dde6 | 2326 | |
4c391142 PM |
2327 | /* peer flags apply */ |
2328 | flags_tmp = conf->flags & ~peer->flags_override; | |
2329 | flags_tmp ^= conf->flags_invert ^ peer->flags_invert; | |
2330 | flags_tmp &= ~peer->flags_override; | |
2331 | ||
2332 | UNSET_FLAG(peer->flags, ~peer->flags_override); | |
2333 | SET_FLAG(peer->flags, flags_tmp); | |
2334 | SET_FLAG(peer->flags_invert, conf->flags_invert); | |
ad4cbda1 | 2335 | |
d62a17ae | 2336 | /* peer timers apply */ |
b90a8e13 PM |
2337 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_TIMER)) { |
2338 | PEER_ATTR_INHERIT(peer, group, holdtime); | |
2339 | PEER_ATTR_INHERIT(peer, group, keepalive); | |
2340 | } | |
6aeb9e78 | 2341 | |
b90a8e13 PM |
2342 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_TIMER_CONNECT)) { |
2343 | PEER_ATTR_INHERIT(peer, group, connect); | |
2344 | if (CHECK_FLAG(conf->flags, PEER_FLAG_TIMER_CONNECT)) | |
2345 | peer->v_connect = conf->connect; | |
2346 | else | |
2347 | peer->v_connect = BGP_DEFAULT_CONNECT_RETRY; | |
2348 | } | |
2349 | ||
2350 | /* advertisement-interval apply */ | |
2351 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_ROUTEADV)) { | |
2352 | PEER_ATTR_INHERIT(peer, group, routeadv); | |
2353 | if (CHECK_FLAG(conf->flags, PEER_FLAG_ROUTEADV)) | |
2354 | peer->v_routeadv = conf->routeadv; | |
2355 | else | |
2356 | peer->v_routeadv = (peer_sort(peer) == BGP_PEER_IBGP) | |
2357 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
2358 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
2359 | } | |
718e3744 | 2360 | |
d62a17ae | 2361 | /* password apply */ |
a14810f4 PM |
2362 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_PASSWORD)) |
2363 | PEER_STR_ATTR_INHERIT(peer, group, password, | |
2364 | MTYPE_PEER_PASSWORD); | |
718e3744 | 2365 | |
d62a17ae | 2366 | if (!BGP_PEER_SU_UNSPEC(peer)) |
2367 | bgp_md5_set(peer); | |
d4a7a753 | 2368 | |
d62a17ae | 2369 | /* update-source apply */ |
a14810f4 PM |
2370 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_UPDATE_SOURCE)) { |
2371 | if (conf->update_source) { | |
d62a17ae | 2372 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); |
a14810f4 PM |
2373 | PEER_SU_ATTR_INHERIT(peer, group, update_source); |
2374 | } else if (conf->update_if) { | |
d62a17ae | 2375 | sockunion_free(peer->update_source); |
a14810f4 PM |
2376 | PEER_STR_ATTR_INHERIT(peer, group, update_if, |
2377 | MTYPE_PEER_UPDATE_SOURCE); | |
d62a17ae | 2378 | } |
d62a17ae | 2379 | } |
cd92e548 | 2380 | |
d62a17ae | 2381 | bgp_bfd_peer_group2peer_copy(conf, peer); |
ad4cbda1 | 2382 | } |
718e3744 | 2383 | |
d62a17ae | 2384 | /* Peer group's remote AS configuration. */ |
2385 | int peer_group_remote_as(struct bgp *bgp, const char *group_name, as_t *as, | |
2386 | int as_type) | |
f14e6fdb | 2387 | { |
d62a17ae | 2388 | struct peer_group *group; |
2389 | struct peer *peer; | |
2390 | struct listnode *node, *nnode; | |
f14e6fdb | 2391 | |
d62a17ae | 2392 | group = peer_group_lookup(bgp, group_name); |
2393 | if (!group) | |
2394 | return -1; | |
f14e6fdb | 2395 | |
d62a17ae | 2396 | if ((as_type == group->conf->as_type) && (group->conf->as == *as)) |
2397 | return 0; | |
f14e6fdb | 2398 | |
f14e6fdb | 2399 | |
d62a17ae | 2400 | /* When we setup peer-group AS number all peer group member's AS |
2401 | number must be updated to same number. */ | |
2402 | peer_as_change(group->conf, *as, as_type); | |
f14e6fdb | 2403 | |
d62a17ae | 2404 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { |
2405 | if (((peer->as_type == AS_SPECIFIED) && peer->as != *as) | |
2406 | || (peer->as_type != as_type)) | |
2407 | peer_as_change(peer, *as, as_type); | |
2408 | } | |
f14e6fdb | 2409 | |
d62a17ae | 2410 | return 0; |
f14e6fdb DS |
2411 | } |
2412 | ||
d62a17ae | 2413 | int peer_group_delete(struct peer_group *group) |
f14e6fdb | 2414 | { |
d62a17ae | 2415 | struct bgp *bgp; |
2416 | struct peer *peer; | |
2417 | struct prefix *prefix; | |
2418 | struct peer *other; | |
2419 | struct listnode *node, *nnode; | |
2420 | afi_t afi; | |
f14e6fdb | 2421 | |
d62a17ae | 2422 | bgp = group->bgp; |
f14e6fdb | 2423 | |
d62a17ae | 2424 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { |
2425 | other = peer->doppelganger; | |
2426 | peer_delete(peer); | |
2427 | if (other && other->status != Deleted) { | |
2428 | other->group = NULL; | |
2429 | peer_delete(other); | |
2430 | } | |
2431 | } | |
affe9e99 | 2432 | list_delete_and_null(&group->peer); |
f14e6fdb | 2433 | |
d62a17ae | 2434 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
2435 | for (ALL_LIST_ELEMENTS(group->listen_range[afi], node, nnode, | |
2436 | prefix)) { | |
2437 | prefix_free(prefix); | |
2438 | } | |
affe9e99 | 2439 | list_delete_and_null(&group->listen_range[afi]); |
d62a17ae | 2440 | } |
f14e6fdb | 2441 | |
d62a17ae | 2442 | XFREE(MTYPE_PEER_GROUP_HOST, group->name); |
2443 | group->name = NULL; | |
0299c004 | 2444 | |
d62a17ae | 2445 | bfd_info_free(&(group->conf->bfd_info)); |
f14e6fdb | 2446 | |
d62a17ae | 2447 | group->conf->group = NULL; |
2448 | peer_delete(group->conf); | |
f14e6fdb | 2449 | |
d62a17ae | 2450 | /* Delete from all peer_group list. */ |
2451 | listnode_delete(bgp->group, group); | |
f14e6fdb | 2452 | |
d62a17ae | 2453 | peer_group_free(group); |
f14e6fdb | 2454 | |
d62a17ae | 2455 | return 0; |
2456 | } | |
f14e6fdb | 2457 | |
d62a17ae | 2458 | int peer_group_remote_as_delete(struct peer_group *group) |
2459 | { | |
2460 | struct peer *peer, *other; | |
2461 | struct listnode *node, *nnode; | |
f14e6fdb | 2462 | |
d62a17ae | 2463 | if ((group->conf->as_type == AS_UNSPECIFIED) |
2464 | || ((!group->conf->as) && (group->conf->as_type == AS_SPECIFIED))) | |
2465 | return 0; | |
f14e6fdb | 2466 | |
d62a17ae | 2467 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { |
2468 | other = peer->doppelganger; | |
f14e6fdb | 2469 | |
d62a17ae | 2470 | peer_delete(peer); |
f14e6fdb | 2471 | |
d62a17ae | 2472 | if (other && other->status != Deleted) { |
2473 | other->group = NULL; | |
2474 | peer_delete(other); | |
2475 | } | |
2476 | } | |
2477 | list_delete_all_node(group->peer); | |
f14e6fdb | 2478 | |
d62a17ae | 2479 | group->conf->as = 0; |
2480 | group->conf->as_type = AS_UNSPECIFIED; | |
f14e6fdb | 2481 | |
d62a17ae | 2482 | return 0; |
f14e6fdb | 2483 | } |
d62a17ae | 2484 | |
2485 | int peer_group_listen_range_add(struct peer_group *group, struct prefix *range) | |
f14e6fdb | 2486 | { |
d62a17ae | 2487 | struct prefix *prefix; |
2488 | struct listnode *node, *nnode; | |
2489 | afi_t afi; | |
f14e6fdb | 2490 | |
d62a17ae | 2491 | afi = family2afi(range->family); |
f14e6fdb | 2492 | |
d62a17ae | 2493 | /* Group needs remote AS configured. */ |
2494 | if (group->conf->as_type == AS_UNSPECIFIED) | |
2495 | return BGP_ERR_PEER_GROUP_NO_REMOTE_AS; | |
718e3744 | 2496 | |
d62a17ae | 2497 | /* Ensure no duplicates. Currently we don't care about overlaps. */ |
2498 | for (ALL_LIST_ELEMENTS(group->listen_range[afi], node, nnode, prefix)) { | |
2499 | if (prefix_same(range, prefix)) | |
2500 | return 0; | |
2501 | } | |
2502 | ||
2503 | prefix = prefix_new(); | |
2504 | prefix_copy(prefix, range); | |
2505 | listnode_add(group->listen_range[afi], prefix); | |
2506 | return 0; | |
718e3744 | 2507 | } |
6b0655a2 | 2508 | |
d62a17ae | 2509 | int peer_group_listen_range_del(struct peer_group *group, struct prefix *range) |
718e3744 | 2510 | { |
d62a17ae | 2511 | struct prefix *prefix, prefix2; |
2512 | struct listnode *node, *nnode; | |
2513 | struct peer *peer; | |
2514 | afi_t afi; | |
2515 | char buf[PREFIX2STR_BUFFER]; | |
718e3744 | 2516 | |
d62a17ae | 2517 | afi = family2afi(range->family); |
1ff9a340 | 2518 | |
d62a17ae | 2519 | /* Identify the listen range. */ |
2520 | for (ALL_LIST_ELEMENTS(group->listen_range[afi], node, nnode, prefix)) { | |
2521 | if (prefix_same(range, prefix)) | |
2522 | break; | |
1ff9a340 | 2523 | } |
718e3744 | 2524 | |
d62a17ae | 2525 | if (!prefix) |
2526 | return BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_NOT_FOUND; | |
2527 | ||
2528 | prefix2str(prefix, buf, sizeof(buf)); | |
2529 | ||
2530 | /* Dispose off any dynamic neighbors that exist due to this listen range | |
2531 | */ | |
2532 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
2533 | if (!peer_dynamic_neighbor(peer)) | |
2534 | continue; | |
2535 | ||
2536 | sockunion2hostprefix(&peer->su, &prefix2); | |
2537 | if (prefix_match(prefix, &prefix2)) { | |
2538 | if (bgp_debug_neighbor_events(peer)) | |
2539 | zlog_debug( | |
2540 | "Deleting dynamic neighbor %s group %s upon " | |
2541 | "delete of listen range %s", | |
2542 | peer->host, group->name, buf); | |
2543 | peer_delete(peer); | |
2544 | } | |
2545 | } | |
718e3744 | 2546 | |
d62a17ae | 2547 | /* Get rid of the listen range */ |
2548 | listnode_delete(group->listen_range[afi], prefix); | |
718e3744 | 2549 | |
d62a17ae | 2550 | return 0; |
2551 | } | |
e0701b79 | 2552 | |
d62a17ae | 2553 | /* Bind specified peer to peer group. */ |
2554 | int peer_group_bind(struct bgp *bgp, union sockunion *su, struct peer *peer, | |
2555 | struct peer_group *group, as_t *as) | |
2556 | { | |
2557 | int first_member = 0; | |
2558 | afi_t afi; | |
2559 | safi_t safi; | |
d62a17ae | 2560 | |
2561 | /* Lookup the peer. */ | |
2562 | if (!peer) | |
2563 | peer = peer_lookup(bgp, su); | |
2564 | ||
2565 | /* The peer exist, bind it to the peer-group */ | |
2566 | if (peer) { | |
ed9fb826 | 2567 | /* When the peer already belongs to a peer-group, check the |
d62a17ae | 2568 | * consistency. */ |
ed9fb826 DW |
2569 | if (peer_group_active(peer)) { |
2570 | ||
2571 | /* The peer is already bound to the peer-group, | |
d8a079e8 DW |
2572 | * nothing to do |
2573 | */ | |
ed9fb826 DW |
2574 | if (strcmp(peer->group->name, group->name) == 0) |
2575 | return 0; | |
2576 | else | |
2577 | return BGP_ERR_PEER_GROUP_CANT_CHANGE; | |
2578 | } | |
d62a17ae | 2579 | |
2580 | /* The peer has not specified a remote-as, inherit it from the | |
2581 | * peer-group */ | |
2582 | if (peer->as_type == AS_UNSPECIFIED) { | |
2583 | peer->as_type = group->conf->as_type; | |
2584 | peer->as = group->conf->as; | |
2585 | } | |
718e3744 | 2586 | |
d62a17ae | 2587 | if (!group->conf->as) { |
2588 | if (peer_sort(group->conf) != BGP_PEER_INTERNAL | |
2589 | && peer_sort(group->conf) != peer_sort(peer)) { | |
2590 | if (as) | |
2591 | *as = peer->as; | |
2592 | return BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT; | |
2593 | } | |
718e3744 | 2594 | |
d62a17ae | 2595 | if (peer_sort(group->conf) == BGP_PEER_INTERNAL) |
2596 | first_member = 1; | |
2597 | } | |
718e3744 | 2598 | |
d62a17ae | 2599 | peer_group2peer_config_copy(group, peer); |
2600 | ||
05c7a1cc QY |
2601 | FOREACH_AFI_SAFI (afi, safi) { |
2602 | if (group->conf->afc[afi][safi]) { | |
2603 | peer->afc[afi][safi] = 1; | |
2604 | ||
2605 | if (peer_af_find(peer, afi, safi) | |
2606 | || peer_af_create(peer, afi, safi)) { | |
2607 | peer_group2peer_config_copy_af( | |
2608 | group, peer, afi, safi); | |
2609 | } | |
2610 | } else if (peer->afc[afi][safi]) | |
2611 | peer_deactivate(peer, afi, safi); | |
a4d82a8a | 2612 | } |
d62a17ae | 2613 | |
2614 | if (peer->group) { | |
2615 | assert(group && peer->group == group); | |
2616 | } else { | |
0866cdaf A |
2617 | listnode_delete(bgp->peer, peer); |
2618 | ||
d62a17ae | 2619 | peer->group = group; |
2620 | listnode_add_sort(bgp->peer, peer); | |
2621 | ||
2622 | peer = peer_lock(peer); /* group->peer list reference */ | |
2623 | listnode_add(group->peer, peer); | |
2624 | } | |
718e3744 | 2625 | |
d62a17ae | 2626 | if (first_member) { |
2627 | /* Advertisement-interval reset */ | |
b90a8e13 PM |
2628 | if (!CHECK_FLAG(group->conf->flags, |
2629 | PEER_FLAG_ROUTEADV)) { | |
2630 | group->conf->v_routeadv = | |
2631 | (peer_sort(group->conf) | |
2632 | == BGP_PEER_IBGP) | |
2633 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
2634 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 2635 | } |
2636 | ||
2637 | /* ebgp-multihop reset */ | |
2638 | if (peer_sort(group->conf) == BGP_PEER_IBGP) | |
2639 | group->conf->ttl = MAXTTL; | |
2640 | ||
2641 | /* local-as reset */ | |
2642 | if (peer_sort(group->conf) != BGP_PEER_EBGP) { | |
2643 | group->conf->change_local_as = 0; | |
a14810f4 PM |
2644 | peer_flag_unset(group->conf, |
2645 | PEER_FLAG_LOCAL_AS); | |
2646 | peer_flag_unset(group->conf, | |
2647 | PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
2648 | peer_flag_unset(group->conf, | |
2649 | PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
d62a17ae | 2650 | } |
2651 | } | |
718e3744 | 2652 | |
d62a17ae | 2653 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); |
718e3744 | 2654 | |
d62a17ae | 2655 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
2656 | peer->last_reset = PEER_DOWN_RMAP_BIND; | |
2657 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
2658 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
2659 | } else { | |
2660 | bgp_session_reset(peer); | |
2661 | } | |
2662 | } | |
718e3744 | 2663 | |
d62a17ae | 2664 | /* Create a new peer. */ |
2665 | else { | |
2666 | if ((group->conf->as_type == AS_SPECIFIED) | |
2667 | && (!group->conf->as)) { | |
2668 | return BGP_ERR_PEER_GROUP_NO_REMOTE_AS; | |
2669 | } | |
718e3744 | 2670 | |
d62a17ae | 2671 | peer = peer_create(su, NULL, bgp, bgp->as, group->conf->as, |
2672 | group->conf->as_type, 0, 0, group); | |
718e3744 | 2673 | |
d62a17ae | 2674 | peer = peer_lock(peer); /* group->peer list reference */ |
2675 | listnode_add(group->peer, peer); | |
718e3744 | 2676 | |
d62a17ae | 2677 | peer_group2peer_config_copy(group, peer); |
a4ed4829 | 2678 | |
d62a17ae | 2679 | /* If the peer-group is active for this afi/safi then activate |
2680 | * for this peer */ | |
05c7a1cc QY |
2681 | FOREACH_AFI_SAFI (afi, safi) { |
2682 | if (group->conf->afc[afi][safi]) { | |
2683 | peer->afc[afi][safi] = 1; | |
2684 | peer_af_create(peer, afi, safi); | |
2685 | peer_group2peer_config_copy_af(group, peer, afi, | |
2686 | safi); | |
2687 | } else if (peer->afc[afi][safi]) | |
2688 | peer_deactivate(peer, afi, safi); | |
2689 | } | |
718e3744 | 2690 | |
d62a17ae | 2691 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); |
718e3744 | 2692 | |
d62a17ae | 2693 | /* Set up peer's events and timers. */ |
2694 | if (peer_active(peer)) | |
2695 | bgp_timer_set(peer); | |
2696 | } | |
718e3744 | 2697 | |
d62a17ae | 2698 | return 0; |
718e3744 | 2699 | } |
2700 | ||
d62a17ae | 2701 | static int bgp_startup_timer_expire(struct thread *thread) |
2702 | { | |
2703 | struct bgp *bgp; | |
718e3744 | 2704 | |
d62a17ae | 2705 | bgp = THREAD_ARG(thread); |
2706 | bgp->t_startup = NULL; | |
718e3744 | 2707 | |
d62a17ae | 2708 | return 0; |
2709 | } | |
e0701b79 | 2710 | |
829e590b DS |
2711 | /* |
2712 | * On shutdown we call the cleanup function which | |
2713 | * does a free of the link list nodes, free up | |
2714 | * the data we are pointing at too. | |
2715 | */ | |
2716 | static void bgp_vrf_string_name_delete(void *data) | |
2717 | { | |
2718 | char *vname = data; | |
2719 | ||
2720 | XFREE(MTYPE_TMP, vname); | |
2721 | } | |
2722 | ||
d62a17ae | 2723 | /* BGP instance creation by `router bgp' commands. */ |
2724 | static struct bgp *bgp_create(as_t *as, const char *name, | |
2725 | enum bgp_instance_type inst_type) | |
2726 | { | |
0291c246 MK |
2727 | struct bgp *bgp; |
2728 | afi_t afi; | |
2729 | safi_t safi; | |
d62a17ae | 2730 | |
2731 | if ((bgp = XCALLOC(MTYPE_BGP, sizeof(struct bgp))) == NULL) | |
2732 | return NULL; | |
2733 | ||
2734 | if (BGP_DEBUG(zebra, ZEBRA)) { | |
2735 | if (inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
2736 | zlog_debug("Creating Default VRF, AS %u", *as); | |
2737 | else | |
2738 | zlog_debug("Creating %s %s, AS %u", | |
2739 | (inst_type == BGP_INSTANCE_TYPE_VRF) | |
2740 | ? "VRF" | |
2741 | : "VIEW", | |
2742 | name, *as); | |
718e3744 | 2743 | } |
adbac85e | 2744 | |
d62a17ae | 2745 | bgp_lock(bgp); |
9df5ac49 | 2746 | bgp->heuristic_coalesce = true; |
d62a17ae | 2747 | bgp->inst_type = inst_type; |
2748 | bgp->vrf_id = (inst_type == BGP_INSTANCE_TYPE_DEFAULT) ? VRF_DEFAULT | |
2749 | : VRF_UNKNOWN; | |
2750 | bgp->peer_self = peer_new(bgp); | |
2751 | if (bgp->peer_self->host) | |
2752 | XFREE(MTYPE_BGP_PEER_HOST, bgp->peer_self->host); | |
2753 | bgp->peer_self->host = | |
2754 | XSTRDUP(MTYPE_BGP_PEER_HOST, "Static announcement"); | |
d77114b7 MK |
2755 | if (bgp->peer_self->hostname != NULL) { |
2756 | XFREE(MTYPE_BGP_PEER_HOST, bgp->peer_self->hostname); | |
2757 | bgp->peer_self->hostname = NULL; | |
2758 | } | |
6b3ee3a0 | 2759 | if (cmd_hostname_get()) |
60466a63 QY |
2760 | bgp->peer_self->hostname = |
2761 | XSTRDUP(MTYPE_BGP_PEER_HOST, cmd_hostname_get()); | |
d77114b7 MK |
2762 | |
2763 | if (bgp->peer_self->domainname != NULL) { | |
2764 | XFREE(MTYPE_BGP_PEER_HOST, bgp->peer_self->domainname); | |
2765 | bgp->peer_self->domainname = NULL; | |
2766 | } | |
6b3ee3a0 | 2767 | if (cmd_domainname_get()) |
60466a63 QY |
2768 | bgp->peer_self->domainname = |
2769 | XSTRDUP(MTYPE_BGP_PEER_HOST, cmd_domainname_get()); | |
d62a17ae | 2770 | bgp->peer = list_new(); |
2771 | bgp->peer->cmp = (int (*)(void *, void *))peer_cmp; | |
a4d82a8a | 2772 | bgp->peerhash = hash_create(peer_hash_key_make, peer_hash_same, |
3f65c5b1 | 2773 | "BGP Peer Hash"); |
40520c36 | 2774 | bgp->peerhash->max_size = BGP_PEER_MAX_HASH_SIZE; |
d62a17ae | 2775 | |
2776 | bgp->group = list_new(); | |
2777 | bgp->group->cmp = (int (*)(void *, void *))peer_group_cmp; | |
2778 | ||
05c7a1cc | 2779 | FOREACH_AFI_SAFI (afi, safi) { |
960035b2 PZ |
2780 | bgp->route[afi][safi] = bgp_table_init(bgp, afi, safi); |
2781 | bgp->aggregate[afi][safi] = bgp_table_init(bgp, afi, safi); | |
2782 | bgp->rib[afi][safi] = bgp_table_init(bgp, afi, safi); | |
05c7a1cc QY |
2783 | |
2784 | /* Enable maximum-paths */ | |
2785 | bgp_maximum_paths_set(bgp, afi, safi, BGP_PEER_EBGP, | |
2786 | multipath_num, 0); | |
2787 | bgp_maximum_paths_set(bgp, afi, safi, BGP_PEER_IBGP, | |
2788 | multipath_num, 0); | |
2789 | } | |
d62a17ae | 2790 | |
2791 | bgp->v_update_delay = BGP_UPDATE_DELAY_DEF; | |
2792 | bgp->default_local_pref = BGP_DEFAULT_LOCAL_PREF; | |
2793 | bgp->default_subgroup_pkt_queue_max = | |
2794 | BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX; | |
2795 | bgp->default_holdtime = BGP_DEFAULT_HOLDTIME; | |
2796 | bgp->default_keepalive = BGP_DEFAULT_KEEPALIVE; | |
2797 | bgp->restart_time = BGP_DEFAULT_RESTART_TIME; | |
2798 | bgp->stalepath_time = BGP_DEFAULT_STALEPATH_TIME; | |
2799 | bgp->dynamic_neighbors_limit = BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT; | |
2800 | bgp->dynamic_neighbors_count = 0; | |
2801 | #if DFLT_BGP_IMPORT_CHECK | |
2802 | bgp_flag_set(bgp, BGP_FLAG_IMPORT_CHECK); | |
2803 | #endif | |
2804 | #if DFLT_BGP_SHOW_HOSTNAME | |
2805 | bgp_flag_set(bgp, BGP_FLAG_SHOW_HOSTNAME); | |
2806 | #endif | |
2807 | #if DFLT_BGP_LOG_NEIGHBOR_CHANGES | |
2808 | bgp_flag_set(bgp, BGP_FLAG_LOG_NEIGHBOR_CHANGES); | |
2809 | #endif | |
2810 | #if DFLT_BGP_DETERMINISTIC_MED | |
2811 | bgp_flag_set(bgp, BGP_FLAG_DETERMINISTIC_MED); | |
2812 | #endif | |
2813 | bgp->addpath_tx_id = BGP_ADDPATH_TX_ID_FOR_DEFAULT_ORIGINATE; | |
2814 | ||
2815 | bgp->as = *as; | |
2816 | ||
2817 | #if ENABLE_BGP_VNC | |
2818 | if (inst_type != BGP_INSTANCE_TYPE_VRF) { | |
2819 | bgp->rfapi = bgp_rfapi_new(bgp); | |
2820 | assert(bgp->rfapi); | |
2821 | assert(bgp->rfapi_cfg); | |
2822 | } | |
2823 | #endif /* ENABLE_BGP_VNC */ | |
adbac85e | 2824 | |
ddb5b488 | 2825 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
e70e9f8e PZ |
2826 | bgp->vpn_policy[afi].bgp = bgp; |
2827 | bgp->vpn_policy[afi].afi = afi; | |
ddb5b488 PZ |
2828 | bgp->vpn_policy[afi].tovpn_label = MPLS_LABEL_NONE; |
2829 | bgp->vpn_policy[afi].tovpn_zebra_vrf_label_last_sent = | |
2830 | MPLS_LABEL_NONE; | |
12a844a5 DS |
2831 | |
2832 | bgp->vpn_policy[afi].import_vrf = list_new(); | |
829e590b DS |
2833 | bgp->vpn_policy[afi].import_vrf->del = |
2834 | bgp_vrf_string_name_delete; | |
12a844a5 | 2835 | bgp->vpn_policy[afi].export_vrf = list_new(); |
829e590b DS |
2836 | bgp->vpn_policy[afi].export_vrf->del = |
2837 | bgp_vrf_string_name_delete; | |
ddb5b488 | 2838 | } |
d62a17ae | 2839 | if (name) { |
2840 | bgp->name = XSTRDUP(MTYPE_BGP, name); | |
2841 | } else { | |
2842 | /* TODO - The startup timer needs to be run for the whole of BGP | |
2843 | */ | |
2844 | thread_add_timer(bm->master, bgp_startup_timer_expire, bgp, | |
2845 | bgp->restart_time, &bgp->t_startup); | |
2846 | } | |
06370dac | 2847 | |
3572fb26 PZ |
2848 | /* printable name we can use in debug messages */ |
2849 | if (inst_type == BGP_INSTANCE_TYPE_DEFAULT) { | |
2850 | bgp->name_pretty = XSTRDUP(MTYPE_BGP, "VRF default"); | |
2851 | } else { | |
2852 | const char *n; | |
2853 | int len; | |
2854 | ||
2855 | if (bgp->name) | |
2856 | n = bgp->name; | |
2857 | else | |
2858 | n = "?"; | |
2859 | ||
2860 | len = 4 + 1 + strlen(n) + 1; /* "view foo\0" */ | |
2861 | ||
2862 | bgp->name_pretty = XCALLOC(MTYPE_BGP, len); | |
2863 | snprintf(bgp->name_pretty, len, "%s %s", | |
2864 | (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) | |
2865 | ? "VRF" | |
2866 | : "VIEW", | |
2867 | n); | |
2868 | } | |
2869 | ||
555e09d4 QY |
2870 | atomic_store_explicit(&bgp->wpkt_quanta, BGP_WRITE_PACKET_MAX, |
2871 | memory_order_relaxed); | |
2872 | atomic_store_explicit(&bgp->rpkt_quanta, BGP_READ_PACKET_MAX, | |
2873 | memory_order_relaxed); | |
d62a17ae | 2874 | bgp->coalesce_time = BGP_DEFAULT_SUBGROUP_COALESCE_TIME; |
adbac85e | 2875 | |
d62a17ae | 2876 | QOBJ_REG(bgp, bgp); |
adbac85e | 2877 | |
d62a17ae | 2878 | update_bgp_group_init(bgp); |
92708db6 | 2879 | |
2880 | /* assign a unique rd id for auto derivation of vrf's RD */ | |
2881 | bf_assign_index(bm->rd_idspace, bgp->vrf_rd_id); | |
2882 | ||
d62a17ae | 2883 | bgp_evpn_init(bgp); |
f3d32faa | 2884 | bgp_pbr_init(bgp); |
d62a17ae | 2885 | return bgp; |
718e3744 | 2886 | } |
2887 | ||
d62a17ae | 2888 | /* Return the "default VRF" instance of BGP. */ |
2889 | struct bgp *bgp_get_default(void) | |
718e3744 | 2890 | { |
d62a17ae | 2891 | struct bgp *bgp; |
2892 | struct listnode *node, *nnode; | |
2893 | ||
2894 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) | |
2895 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
2896 | return bgp; | |
2897 | return NULL; | |
718e3744 | 2898 | } |
2899 | ||
d62a17ae | 2900 | /* Lookup BGP entry. */ |
2901 | struct bgp *bgp_lookup(as_t as, const char *name) | |
718e3744 | 2902 | { |
d62a17ae | 2903 | struct bgp *bgp; |
2904 | struct listnode *node, *nnode; | |
6b0655a2 | 2905 | |
d62a17ae | 2906 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) |
2907 | if (bgp->as == as | |
2908 | && ((bgp->name == NULL && name == NULL) | |
2909 | || (bgp->name && name && strcmp(bgp->name, name) == 0))) | |
2910 | return bgp; | |
2911 | return NULL; | |
2912 | } | |
73d70fa6 | 2913 | |
d62a17ae | 2914 | /* Lookup BGP structure by view name. */ |
2915 | struct bgp *bgp_lookup_by_name(const char *name) | |
73d70fa6 | 2916 | { |
d62a17ae | 2917 | struct bgp *bgp; |
2918 | struct listnode *node, *nnode; | |
2919 | ||
2920 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) | |
2921 | if ((bgp->name == NULL && name == NULL) | |
2922 | || (bgp->name && name && strcmp(bgp->name, name) == 0)) | |
2923 | return bgp; | |
2924 | return NULL; | |
73d70fa6 DL |
2925 | } |
2926 | ||
d62a17ae | 2927 | /* Lookup BGP instance based on VRF id. */ |
2928 | /* Note: Only to be used for incoming messages from Zebra. */ | |
2929 | struct bgp *bgp_lookup_by_vrf_id(vrf_id_t vrf_id) | |
73d70fa6 | 2930 | { |
d62a17ae | 2931 | struct vrf *vrf; |
2932 | ||
2933 | /* Lookup VRF (in tree) and follow link. */ | |
2934 | vrf = vrf_lookup_by_id(vrf_id); | |
2935 | if (!vrf) | |
2936 | return NULL; | |
2937 | return (vrf->info) ? (struct bgp *)vrf->info : NULL; | |
73d70fa6 DL |
2938 | } |
2939 | ||
e5619c28 PG |
2940 | /* handle socket creation or deletion, if necessary |
2941 | * this is called for all new BGP instances | |
2942 | */ | |
996c9314 LB |
2943 | int bgp_handle_socket(struct bgp *bgp, struct vrf *vrf, vrf_id_t old_vrf_id, |
2944 | bool create) | |
e5619c28 PG |
2945 | { |
2946 | int ret = 0; | |
2947 | ||
2948 | /* Create BGP server socket, if listen mode not disabled */ | |
2949 | if (!bgp || bgp_option_check(BGP_OPT_NO_LISTEN)) | |
2950 | return 0; | |
3ad00234 | 2951 | if (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) { |
e5619c28 PG |
2952 | /* |
2953 | * suppress vrf socket | |
2954 | */ | |
2955 | if (create == FALSE) { | |
3ad00234 LB |
2956 | bgp_close_vrf_socket(bgp); |
2957 | return 0; | |
e5619c28 | 2958 | } |
3ad00234 LB |
2959 | if (vrf == NULL) |
2960 | return BGP_ERR_INVALID_VALUE; | |
e5619c28 PG |
2961 | /* do nothing |
2962 | * if vrf_id did not change | |
2963 | */ | |
2964 | if (vrf->vrf_id == old_vrf_id) | |
2965 | return 0; | |
2966 | if (old_vrf_id != VRF_UNKNOWN) { | |
2967 | /* look for old socket. close it. */ | |
2968 | bgp_close_vrf_socket(bgp); | |
2969 | } | |
2970 | /* if backend is not yet identified ( VRF_UNKNOWN) then | |
2971 | * creation will be done later | |
2972 | */ | |
2973 | if (vrf->vrf_id == VRF_UNKNOWN) | |
2974 | return 0; | |
3ad00234 LB |
2975 | ret = bgp_socket(bgp, bm->port, bm->address); |
2976 | if (ret < 0) | |
2977 | return BGP_ERR_INVALID_VALUE; | |
2978 | return 0; | |
2979 | } else | |
2980 | return bgp_check_main_socket(create, bgp); | |
e5619c28 PG |
2981 | } |
2982 | ||
d62a17ae | 2983 | /* Called from VTY commands. */ |
2984 | int bgp_get(struct bgp **bgp_val, as_t *as, const char *name, | |
2985 | enum bgp_instance_type inst_type) | |
2986 | { | |
2987 | struct bgp *bgp; | |
e5619c28 | 2988 | struct vrf *vrf = NULL; |
d62a17ae | 2989 | |
2990 | /* Multiple instance check. */ | |
2991 | if (bgp_option_check(BGP_OPT_MULTIPLE_INSTANCE)) { | |
2992 | if (name) | |
2993 | bgp = bgp_lookup_by_name(name); | |
2994 | else | |
2995 | bgp = bgp_get_default(); | |
2996 | ||
2997 | /* Already exists. */ | |
2998 | if (bgp) { | |
2999 | if (bgp->as != *as) { | |
3000 | *as = bgp->as; | |
3001 | return BGP_ERR_INSTANCE_MISMATCH; | |
3002 | } | |
3003 | if (bgp->inst_type != inst_type) | |
3004 | return BGP_ERR_INSTANCE_MISMATCH; | |
3005 | *bgp_val = bgp; | |
3006 | return 0; | |
3007 | } | |
3008 | } else { | |
3009 | /* BGP instance name can not be specified for single instance. | |
3010 | */ | |
3011 | if (name) | |
3012 | return BGP_ERR_MULTIPLE_INSTANCE_NOT_SET; | |
3013 | ||
3014 | /* Get default BGP structure if exists. */ | |
3015 | bgp = bgp_get_default(); | |
3016 | ||
3017 | if (bgp) { | |
3018 | if (bgp->as != *as) { | |
3019 | *as = bgp->as; | |
3020 | return BGP_ERR_AS_MISMATCH; | |
3021 | } | |
3022 | *bgp_val = bgp; | |
3023 | return 0; | |
3024 | } | |
3025 | } | |
73d70fa6 | 3026 | |
d62a17ae | 3027 | bgp = bgp_create(as, name, inst_type); |
3028 | bgp_router_id_set(bgp, &bgp->router_id_zebra); | |
3029 | bgp_address_init(bgp); | |
db0e1937 | 3030 | bgp_tip_hash_init(bgp); |
d62a17ae | 3031 | bgp_scan_init(bgp); |
3032 | *bgp_val = bgp; | |
eb821189 | 3033 | |
d62a17ae | 3034 | bgp->t_rmap_def_originate_eval = NULL; |
e5cc509c | 3035 | |
d62a17ae | 3036 | /* If Default instance or VRF, link to the VRF structure, if present. */ |
3037 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT | |
3038 | || bgp->inst_type == BGP_INSTANCE_TYPE_VRF) { | |
d62a17ae | 3039 | vrf = bgp_vrf_lookup_by_instance_type(bgp); |
3040 | if (vrf) | |
3041 | bgp_vrf_link(bgp, vrf); | |
3042 | } | |
e5619c28 PG |
3043 | /* BGP server socket already processed if BGP instance |
3044 | * already part of the list | |
3045 | */ | |
3046 | bgp_handle_socket(bgp, vrf, VRF_UNKNOWN, true); | |
3047 | listnode_add(bm->bgp, bgp); | |
718e3744 | 3048 | |
d62a17ae | 3049 | if (IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) |
3050 | bgp_zebra_instance_register(bgp); | |
718e3744 | 3051 | |
718e3744 | 3052 | |
d62a17ae | 3053 | return 0; |
718e3744 | 3054 | } |
6b0655a2 | 3055 | |
d62a17ae | 3056 | /* |
3057 | * Make BGP instance "up". Applies only to VRFs (non-default) and | |
3058 | * implies the VRF has been learnt from Zebra. | |
3059 | */ | |
3060 | void bgp_instance_up(struct bgp *bgp) | |
718e3744 | 3061 | { |
d62a17ae | 3062 | struct peer *peer; |
3063 | struct listnode *node, *next; | |
718e3744 | 3064 | |
d62a17ae | 3065 | /* Register with zebra. */ |
3066 | bgp_zebra_instance_register(bgp); | |
718e3744 | 3067 | |
d62a17ae | 3068 | /* Kick off any peers that may have been configured. */ |
3069 | for (ALL_LIST_ELEMENTS(bgp->peer, node, next, peer)) { | |
3070 | if (!BGP_PEER_START_SUPPRESSED(peer)) | |
3071 | BGP_EVENT_ADD(peer, BGP_Start); | |
718e3744 | 3072 | } |
3073 | ||
d62a17ae | 3074 | /* Process any networks that have been configured. */ |
3075 | bgp_static_add(bgp); | |
3076 | } | |
3077 | ||
3078 | /* | |
3079 | * Make BGP instance "down". Applies only to VRFs (non-default) and | |
3080 | * implies the VRF has been deleted by Zebra. | |
3081 | */ | |
3082 | void bgp_instance_down(struct bgp *bgp) | |
3083 | { | |
3084 | struct peer *peer; | |
3085 | struct listnode *node; | |
3086 | struct listnode *next; | |
3087 | ||
3088 | /* Stop timers. */ | |
3089 | if (bgp->t_rmap_def_originate_eval) { | |
3090 | BGP_TIMER_OFF(bgp->t_rmap_def_originate_eval); | |
3091 | bgp_unlock(bgp); /* TODO - This timer is started with a lock - | |
3092 | why? */ | |
718e3744 | 3093 | } |
3094 | ||
d62a17ae | 3095 | /* Bring down peers, so corresponding routes are purged. */ |
3096 | for (ALL_LIST_ELEMENTS(bgp->peer, node, next, peer)) { | |
3097 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
3098 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3099 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN); | |
3100 | else | |
3101 | bgp_session_reset(peer); | |
3102 | } | |
718e3744 | 3103 | |
d62a17ae | 3104 | /* Purge network and redistributed routes. */ |
3105 | bgp_purge_static_redist_routes(bgp); | |
ee7ca6c0 | 3106 | |
3107 | /* Cleanup registered nexthops (flags) */ | |
3108 | bgp_cleanup_nexthops(bgp); | |
718e3744 | 3109 | } |
3110 | ||
d62a17ae | 3111 | /* Delete BGP instance. */ |
3112 | int bgp_delete(struct bgp *bgp) | |
3113 | { | |
3114 | struct peer *peer; | |
3115 | struct peer_group *group; | |
3116 | struct listnode *node, *next; | |
3117 | struct vrf *vrf; | |
3118 | afi_t afi; | |
3119 | int i; | |
3120 | ||
bf383464 | 3121 | assert(bgp); |
d62a17ae | 3122 | THREAD_OFF(bgp->t_startup); |
3123 | ||
3124 | if (BGP_DEBUG(zebra, ZEBRA)) { | |
3125 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
3126 | zlog_debug("Deleting Default VRF"); | |
3127 | else | |
3128 | zlog_debug("Deleting %s %s", | |
3129 | (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) | |
3130 | ? "VRF" | |
3131 | : "VIEW", | |
3132 | bgp->name); | |
718e3744 | 3133 | } |
3134 | ||
10ebe1ab MK |
3135 | /* unmap from RT list */ |
3136 | bgp_evpn_vrf_delete(bgp); | |
3137 | ||
d62a17ae | 3138 | /* Stop timers. */ |
3139 | if (bgp->t_rmap_def_originate_eval) { | |
3140 | BGP_TIMER_OFF(bgp->t_rmap_def_originate_eval); | |
3141 | bgp_unlock(bgp); /* TODO - This timer is started with a lock - | |
3142 | why? */ | |
718e3744 | 3143 | } |
3144 | ||
d62a17ae | 3145 | /* Inform peers we're going down. */ |
3146 | for (ALL_LIST_ELEMENTS(bgp->peer, node, next, peer)) { | |
3147 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
3148 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3149 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN); | |
718e3744 | 3150 | } |
3151 | ||
d62a17ae | 3152 | /* Delete static routes (networks). */ |
3153 | bgp_static_delete(bgp); | |
6b0655a2 | 3154 | |
d62a17ae | 3155 | /* Unset redistribution. */ |
3156 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
3157 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
3158 | if (i != ZEBRA_ROUTE_BGP) | |
3159 | bgp_redistribute_unset(bgp, afi, i, 0); | |
718e3744 | 3160 | |
d62a17ae | 3161 | /* Free peers and peer-groups. */ |
3162 | for (ALL_LIST_ELEMENTS(bgp->group, node, next, group)) | |
3163 | peer_group_delete(group); | |
718e3744 | 3164 | |
d62a17ae | 3165 | for (ALL_LIST_ELEMENTS(bgp->peer, node, next, peer)) |
3166 | peer_delete(peer); | |
3167 | ||
3168 | if (bgp->peer_self) { | |
3169 | peer_delete(bgp->peer_self); | |
3170 | bgp->peer_self = NULL; | |
718e3744 | 3171 | } |
3172 | ||
d62a17ae | 3173 | update_bgp_group_free(bgp); |
718e3744 | 3174 | |
d62a17ae | 3175 | /* TODO - Other memory may need to be freed - e.g., NHT */ |
3176 | ||
3177 | #if ENABLE_BGP_VNC | |
3178 | rfapi_delete(bgp); | |
3179 | #endif | |
3180 | bgp_cleanup_routes(bgp); | |
718e3744 | 3181 | |
301ad80a PG |
3182 | for (afi = 0; afi < AFI_MAX; ++afi) { |
3183 | if (!bgp->vpn_policy[afi].import_redirect_rtlist) | |
3184 | continue; | |
3185 | ecommunity_free( | |
3186 | &bgp->vpn_policy[afi] | |
3187 | .import_redirect_rtlist); | |
3188 | bgp->vpn_policy[afi].import_redirect_rtlist = NULL; | |
3189 | } | |
d62a17ae | 3190 | /* Remove visibility via the master list - there may however still be |
3191 | * routes to be processed still referencing the struct bgp. | |
3192 | */ | |
3193 | listnode_delete(bm->bgp, bgp); | |
718e3744 | 3194 | |
d62a17ae | 3195 | /* Deregister from Zebra, if needed */ |
3196 | if (IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
3197 | bgp_zebra_instance_deregister(bgp); | |
718e3744 | 3198 | |
d62a17ae | 3199 | /* Free interfaces in this instance. */ |
3200 | bgp_if_finish(bgp); | |
718e3744 | 3201 | |
d62a17ae | 3202 | vrf = bgp_vrf_lookup_by_instance_type(bgp); |
e5619c28 | 3203 | bgp_handle_socket(bgp, vrf, VRF_UNKNOWN, false); |
d62a17ae | 3204 | if (vrf) |
3205 | bgp_vrf_unlink(bgp, vrf); | |
718e3744 | 3206 | |
d62a17ae | 3207 | thread_master_free_unused(bm->master); |
3208 | bgp_unlock(bgp); /* initial reference */ | |
718e3744 | 3209 | |
d62a17ae | 3210 | return 0; |
718e3744 | 3211 | } |
6b0655a2 | 3212 | |
92375c91 | 3213 | void bgp_free(struct bgp *bgp) |
d93f7ffc | 3214 | { |
d62a17ae | 3215 | afi_t afi; |
3216 | safi_t safi; | |
3217 | struct bgp_table *table; | |
3218 | struct bgp_node *rn; | |
f8265580 | 3219 | struct bgp_rmap *rmap; |
d93f7ffc | 3220 | |
d62a17ae | 3221 | QOBJ_UNREG(bgp); |
d93f7ffc | 3222 | |
affe9e99 DS |
3223 | list_delete_and_null(&bgp->group); |
3224 | list_delete_and_null(&bgp->peer); | |
966f821c | 3225 | |
d62a17ae | 3226 | if (bgp->peerhash) { |
3227 | hash_free(bgp->peerhash); | |
3228 | bgp->peerhash = NULL; | |
3229 | } | |
718e3744 | 3230 | |
05c7a1cc QY |
3231 | FOREACH_AFI_SAFI (afi, safi) { |
3232 | /* Special handling for 2-level routing tables. */ | |
3233 | if (safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP | |
3234 | || safi == SAFI_EVPN) { | |
3235 | for (rn = bgp_table_top(bgp->rib[afi][safi]); rn; | |
3236 | rn = bgp_route_next(rn)) { | |
3237 | table = (struct bgp_table *)rn->info; | |
3238 | bgp_table_finish(&table); | |
d62a17ae | 3239 | } |
d62a17ae | 3240 | } |
05c7a1cc QY |
3241 | if (bgp->route[afi][safi]) |
3242 | bgp_table_finish(&bgp->route[afi][safi]); | |
3243 | if (bgp->aggregate[afi][safi]) | |
3244 | bgp_table_finish(&bgp->aggregate[afi][safi]); | |
3245 | if (bgp->rib[afi][safi]) | |
3246 | bgp_table_finish(&bgp->rib[afi][safi]); | |
3247 | rmap = &bgp->table_map[afi][safi]; | |
3248 | if (rmap->name) | |
3249 | XFREE(MTYPE_ROUTE_MAP_NAME, rmap->name); | |
3250 | } | |
718e3744 | 3251 | |
d62a17ae | 3252 | bgp_scan_finish(bgp); |
3253 | bgp_address_destroy(bgp); | |
db0e1937 | 3254 | bgp_tip_hash_destroy(bgp); |
966f821c | 3255 | |
92708db6 | 3256 | /* release the auto RD id */ |
3257 | bf_release_index(bm->rd_idspace, bgp->vrf_rd_id); | |
3258 | ||
d62a17ae | 3259 | bgp_evpn_cleanup(bgp); |
a6b07429 | 3260 | bgp_pbr_cleanup(bgp); |
829e590b DS |
3261 | |
3262 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
3263 | vpn_policy_direction_t dir; | |
3264 | ||
3265 | if (bgp->vpn_policy[afi].import_vrf) | |
3266 | list_delete_and_null(&bgp->vpn_policy[afi].import_vrf); | |
3267 | if (bgp->vpn_policy[afi].export_vrf) | |
3268 | list_delete_and_null(&bgp->vpn_policy[afi].export_vrf); | |
3269 | ||
3270 | dir = BGP_VPN_POLICY_DIR_FROMVPN; | |
3271 | if (bgp->vpn_policy[afi].rtlist[dir]) | |
3272 | ecommunity_free(&bgp->vpn_policy[afi].rtlist[dir]); | |
3273 | dir = BGP_VPN_POLICY_DIR_TOVPN; | |
3274 | if (bgp->vpn_policy[afi].rtlist[dir]) | |
3275 | ecommunity_free(&bgp->vpn_policy[afi].rtlist[dir]); | |
3276 | } | |
3277 | ||
d62a17ae | 3278 | if (bgp->name) |
3279 | XFREE(MTYPE_BGP, bgp->name); | |
3572fb26 PZ |
3280 | if (bgp->name_pretty) |
3281 | XFREE(MTYPE_BGP, bgp->name_pretty); | |
966f821c | 3282 | |
d62a17ae | 3283 | XFREE(MTYPE_BGP, bgp); |
718e3744 | 3284 | } |
3285 | ||
d62a17ae | 3286 | struct peer *peer_lookup_by_conf_if(struct bgp *bgp, const char *conf_if) |
718e3744 | 3287 | { |
d62a17ae | 3288 | struct peer *peer; |
3289 | struct listnode *node, *nnode; | |
966f821c | 3290 | |
d62a17ae | 3291 | if (!conf_if) |
3292 | return NULL; | |
6b0655a2 | 3293 | |
d62a17ae | 3294 | if (bgp != NULL) { |
3295 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
3296 | if (peer->conf_if && !strcmp(peer->conf_if, conf_if) | |
3297 | && !CHECK_FLAG(peer->sflags, | |
3298 | PEER_STATUS_ACCEPT_PEER)) | |
3299 | return peer; | |
3300 | } else if (bm->bgp != NULL) { | |
3301 | struct listnode *bgpnode, *nbgpnode; | |
3302 | ||
3303 | for (ALL_LIST_ELEMENTS(bm->bgp, bgpnode, nbgpnode, bgp)) | |
3304 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
3305 | if (peer->conf_if | |
3306 | && !strcmp(peer->conf_if, conf_if) | |
3307 | && !CHECK_FLAG(peer->sflags, | |
3308 | PEER_STATUS_ACCEPT_PEER)) | |
3309 | return peer; | |
3310 | } | |
3311 | return NULL; | |
718e3744 | 3312 | } |
3313 | ||
d62a17ae | 3314 | struct peer *peer_lookup_by_hostname(struct bgp *bgp, const char *hostname) |
718e3744 | 3315 | { |
d62a17ae | 3316 | struct peer *peer; |
3317 | struct listnode *node, *nnode; | |
6b0655a2 | 3318 | |
d62a17ae | 3319 | if (!hostname) |
3320 | return NULL; | |
6b0655a2 | 3321 | |
d62a17ae | 3322 | if (bgp != NULL) { |
3323 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
3324 | if (peer->hostname && !strcmp(peer->hostname, hostname) | |
3325 | && !CHECK_FLAG(peer->sflags, | |
3326 | PEER_STATUS_ACCEPT_PEER)) | |
3327 | return peer; | |
3328 | } else if (bm->bgp != NULL) { | |
3329 | struct listnode *bgpnode, *nbgpnode; | |
3330 | ||
3331 | for (ALL_LIST_ELEMENTS(bm->bgp, bgpnode, nbgpnode, bgp)) | |
3332 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
3333 | if (peer->hostname | |
3334 | && !strcmp(peer->hostname, hostname) | |
3335 | && !CHECK_FLAG(peer->sflags, | |
3336 | PEER_STATUS_ACCEPT_PEER)) | |
3337 | return peer; | |
3338 | } | |
3339 | return NULL; | |
3340 | } | |
3341 | ||
3342 | struct peer *peer_lookup(struct bgp *bgp, union sockunion *su) | |
3343 | { | |
3344 | struct peer *peer = NULL; | |
3345 | struct peer tmp_peer; | |
3346 | ||
3347 | memset(&tmp_peer, 0, sizeof(struct peer)); | |
3348 | ||
3349 | /* | |
3350 | * We do not want to find the doppelganger peer so search for the peer | |
3351 | * in | |
3352 | * the hash that has PEER_FLAG_CONFIG_NODE | |
3353 | */ | |
3354 | SET_FLAG(tmp_peer.flags, PEER_FLAG_CONFIG_NODE); | |
3355 | ||
3356 | tmp_peer.su = *su; | |
3357 | ||
3358 | if (bgp != NULL) { | |
3359 | peer = hash_lookup(bgp->peerhash, &tmp_peer); | |
3360 | } else if (bm->bgp != NULL) { | |
3361 | struct listnode *bgpnode, *nbgpnode; | |
3362 | ||
3363 | for (ALL_LIST_ELEMENTS(bm->bgp, bgpnode, nbgpnode, bgp)) { | |
d62a17ae | 3364 | peer = hash_lookup(bgp->peerhash, &tmp_peer); |
d62a17ae | 3365 | if (peer) |
3366 | break; | |
3367 | } | |
3368 | } | |
3369 | ||
3370 | return peer; | |
3371 | } | |
3372 | ||
3373 | struct peer *peer_create_bind_dynamic_neighbor(struct bgp *bgp, | |
3374 | union sockunion *su, | |
3375 | struct peer_group *group) | |
3376 | { | |
3377 | struct peer *peer; | |
3378 | afi_t afi; | |
3379 | safi_t safi; | |
3380 | ||
3381 | /* Create peer first; we've already checked group config is valid. */ | |
3382 | peer = peer_create(su, NULL, bgp, bgp->as, group->conf->as, | |
3383 | group->conf->as_type, 0, 0, group); | |
3384 | if (!peer) | |
3385 | return NULL; | |
3386 | ||
3387 | /* Link to group */ | |
3388 | peer = peer_lock(peer); | |
3389 | listnode_add(group->peer, peer); | |
3390 | ||
3391 | peer_group2peer_config_copy(group, peer); | |
3392 | ||
3393 | /* | |
3394 | * Bind peer for all AFs configured for the group. We don't call | |
3395 | * peer_group_bind as that is sub-optimal and does some stuff we don't | |
3396 | * want. | |
3397 | */ | |
05c7a1cc QY |
3398 | FOREACH_AFI_SAFI (afi, safi) { |
3399 | if (!group->conf->afc[afi][safi]) | |
3400 | continue; | |
3401 | peer->afc[afi][safi] = 1; | |
d62a17ae | 3402 | |
05c7a1cc QY |
3403 | if (!peer_af_find(peer, afi, safi)) |
3404 | peer_af_create(peer, afi, safi); | |
d62a17ae | 3405 | |
05c7a1cc QY |
3406 | peer_group2peer_config_copy_af(group, peer, afi, safi); |
3407 | } | |
d62a17ae | 3408 | |
3409 | /* Mark as dynamic, but also as a "config node" for other things to | |
3410 | * work. */ | |
3411 | SET_FLAG(peer->flags, PEER_FLAG_DYNAMIC_NEIGHBOR); | |
3412 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); | |
3413 | ||
3414 | return peer; | |
3415 | } | |
3416 | ||
3417 | struct prefix * | |
3418 | peer_group_lookup_dynamic_neighbor_range(struct peer_group *group, | |
3419 | struct prefix *prefix) | |
3420 | { | |
3421 | struct listnode *node, *nnode; | |
3422 | struct prefix *range; | |
3423 | afi_t afi; | |
3424 | ||
3425 | afi = family2afi(prefix->family); | |
3426 | ||
3427 | if (group->listen_range[afi]) | |
3428 | for (ALL_LIST_ELEMENTS(group->listen_range[afi], node, nnode, | |
3429 | range)) | |
3430 | if (prefix_match(range, prefix)) | |
3431 | return range; | |
3432 | ||
3433 | return NULL; | |
3434 | } | |
3435 | ||
3436 | struct peer_group * | |
3437 | peer_group_lookup_dynamic_neighbor(struct bgp *bgp, struct prefix *prefix, | |
3438 | struct prefix **listen_range) | |
3439 | { | |
3440 | struct prefix *range = NULL; | |
3441 | struct peer_group *group = NULL; | |
3442 | struct listnode *node, *nnode; | |
3443 | ||
3444 | *listen_range = NULL; | |
3445 | if (bgp != NULL) { | |
3446 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) | |
3447 | if ((range = peer_group_lookup_dynamic_neighbor_range( | |
3448 | group, prefix))) | |
3449 | break; | |
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->group, node, nnode, group)) | |
3455 | if ((range = peer_group_lookup_dynamic_neighbor_range( | |
3456 | group, prefix))) | |
3457 | goto found_range; | |
3458 | } | |
3459 | ||
3460 | found_range: | |
3461 | *listen_range = range; | |
3462 | return (group && range) ? group : NULL; | |
3463 | } | |
3464 | ||
3465 | struct peer *peer_lookup_dynamic_neighbor(struct bgp *bgp, union sockunion *su) | |
3466 | { | |
3467 | struct peer_group *group; | |
3468 | struct bgp *gbgp; | |
3469 | struct peer *peer; | |
3470 | struct prefix prefix; | |
3471 | struct prefix *listen_range; | |
3472 | int dncount; | |
3473 | char buf[PREFIX2STR_BUFFER]; | |
3474 | char buf1[PREFIX2STR_BUFFER]; | |
3475 | ||
3476 | sockunion2hostprefix(su, &prefix); | |
3477 | ||
3478 | /* See if incoming connection matches a configured listen range. */ | |
3479 | group = peer_group_lookup_dynamic_neighbor(bgp, &prefix, &listen_range); | |
3480 | ||
3481 | if (!group) | |
3482 | return NULL; | |
3483 | ||
3484 | ||
3485 | gbgp = group->bgp; | |
3486 | ||
3487 | if (!gbgp) | |
3488 | return NULL; | |
3489 | ||
3490 | prefix2str(&prefix, buf, sizeof(buf)); | |
3491 | prefix2str(listen_range, buf1, sizeof(buf1)); | |
3492 | ||
3493 | if (bgp_debug_neighbor_events(NULL)) | |
3494 | zlog_debug( | |
3495 | "Dynamic Neighbor %s matches group %s listen range %s", | |
3496 | buf, group->name, buf1); | |
3497 | ||
3498 | /* Are we within the listen limit? */ | |
3499 | dncount = gbgp->dynamic_neighbors_count; | |
3500 | ||
3501 | if (dncount >= gbgp->dynamic_neighbors_limit) { | |
3502 | if (bgp_debug_neighbor_events(NULL)) | |
3503 | zlog_debug("Dynamic Neighbor %s rejected - at limit %d", | |
3504 | inet_sutop(su, buf), | |
3505 | gbgp->dynamic_neighbors_limit); | |
3506 | return NULL; | |
3507 | } | |
3508 | ||
3509 | /* Ensure group is not disabled. */ | |
3510 | if (CHECK_FLAG(group->conf->flags, PEER_FLAG_SHUTDOWN)) { | |
3511 | if (bgp_debug_neighbor_events(NULL)) | |
3512 | zlog_debug( | |
3513 | "Dynamic Neighbor %s rejected - group %s disabled", | |
3514 | buf, group->name); | |
3515 | return NULL; | |
3516 | } | |
3517 | ||
3518 | /* Check that at least one AF is activated for the group. */ | |
3519 | if (!peer_group_af_configured(group)) { | |
3520 | if (bgp_debug_neighbor_events(NULL)) | |
3521 | zlog_debug( | |
3522 | "Dynamic Neighbor %s rejected - no AF activated for group %s", | |
3523 | buf, group->name); | |
3524 | return NULL; | |
3525 | } | |
3526 | ||
3527 | /* Create dynamic peer and bind to associated group. */ | |
3528 | peer = peer_create_bind_dynamic_neighbor(gbgp, su, group); | |
3529 | assert(peer); | |
3530 | ||
3531 | gbgp->dynamic_neighbors_count = ++dncount; | |
3532 | ||
3533 | if (bgp_debug_neighbor_events(peer)) | |
3534 | zlog_debug("%s Dynamic Neighbor added, group %s count %d", | |
3535 | peer->host, group->name, dncount); | |
3536 | ||
3537 | return peer; | |
3538 | } | |
3539 | ||
cc32742c | 3540 | static void peer_drop_dynamic_neighbor(struct peer *peer) |
d62a17ae | 3541 | { |
3542 | int dncount = -1; | |
cc32742c | 3543 | if (peer->group->bgp) { |
d62a17ae | 3544 | dncount = peer->group->bgp->dynamic_neighbors_count; |
3545 | if (dncount) | |
3546 | peer->group->bgp->dynamic_neighbors_count = --dncount; | |
3547 | } | |
3548 | if (bgp_debug_neighbor_events(peer)) | |
3549 | zlog_debug("%s dropped from group %s, count %d", peer->host, | |
3550 | peer->group->name, dncount); | |
3551 | } | |
3552 | ||
d62a17ae | 3553 | /* If peer is configured at least one address family return 1. */ |
3554 | int peer_active(struct peer *peer) | |
3555 | { | |
3556 | if (BGP_PEER_SU_UNSPEC(peer)) | |
3557 | return 0; | |
3558 | if (peer->afc[AFI_IP][SAFI_UNICAST] || peer->afc[AFI_IP][SAFI_MULTICAST] | |
3559 | || peer->afc[AFI_IP][SAFI_LABELED_UNICAST] | |
3560 | || peer->afc[AFI_IP][SAFI_MPLS_VPN] || peer->afc[AFI_IP][SAFI_ENCAP] | |
7c40bf39 | 3561 | || peer->afc[AFI_IP][SAFI_FLOWSPEC] |
d62a17ae | 3562 | || peer->afc[AFI_IP6][SAFI_UNICAST] |
3563 | || peer->afc[AFI_IP6][SAFI_MULTICAST] | |
3564 | || peer->afc[AFI_IP6][SAFI_LABELED_UNICAST] | |
3565 | || peer->afc[AFI_IP6][SAFI_MPLS_VPN] | |
3566 | || peer->afc[AFI_IP6][SAFI_ENCAP] | |
7c40bf39 | 3567 | || peer->afc[AFI_IP6][SAFI_FLOWSPEC] |
d62a17ae | 3568 | || peer->afc[AFI_L2VPN][SAFI_EVPN]) |
3569 | return 1; | |
3570 | return 0; | |
3571 | } | |
3572 | ||
3573 | /* If peer is negotiated at least one address family return 1. */ | |
3574 | int peer_active_nego(struct peer *peer) | |
3575 | { | |
3576 | if (peer->afc_nego[AFI_IP][SAFI_UNICAST] | |
3577 | || peer->afc_nego[AFI_IP][SAFI_MULTICAST] | |
3578 | || peer->afc_nego[AFI_IP][SAFI_LABELED_UNICAST] | |
3579 | || peer->afc_nego[AFI_IP][SAFI_MPLS_VPN] | |
3580 | || peer->afc_nego[AFI_IP][SAFI_ENCAP] | |
7c40bf39 | 3581 | || peer->afc_nego[AFI_IP][SAFI_FLOWSPEC] |
d62a17ae | 3582 | || peer->afc_nego[AFI_IP6][SAFI_UNICAST] |
3583 | || peer->afc_nego[AFI_IP6][SAFI_MULTICAST] | |
3584 | || peer->afc_nego[AFI_IP6][SAFI_LABELED_UNICAST] | |
3585 | || peer->afc_nego[AFI_IP6][SAFI_MPLS_VPN] | |
3586 | || peer->afc_nego[AFI_IP6][SAFI_ENCAP] | |
7c40bf39 | 3587 | || peer->afc_nego[AFI_IP6][SAFI_FLOWSPEC] |
d62a17ae | 3588 | || peer->afc_nego[AFI_L2VPN][SAFI_EVPN]) |
3589 | return 1; | |
3590 | return 0; | |
3591 | } | |
3592 | ||
3593 | /* peer_flag_change_type. */ | |
3594 | enum peer_change_type { | |
3595 | peer_change_none, | |
3596 | peer_change_reset, | |
3597 | peer_change_reset_in, | |
3598 | peer_change_reset_out, | |
3599 | }; | |
3600 | ||
3601 | static void peer_change_action(struct peer *peer, afi_t afi, safi_t safi, | |
3602 | enum peer_change_type type) | |
3603 | { | |
3604 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
3605 | return; | |
3606 | ||
3607 | if (peer->status != Established) | |
3608 | return; | |
3609 | ||
3610 | if (type == peer_change_reset) { | |
3611 | /* If we're resetting session, we've to delete both peer struct | |
3612 | */ | |
3613 | if ((peer->doppelganger) | |
3614 | && (peer->doppelganger->status != Deleted) | |
3615 | && (!CHECK_FLAG(peer->doppelganger->flags, | |
3616 | PEER_FLAG_CONFIG_NODE))) | |
3617 | peer_delete(peer->doppelganger); | |
3618 | ||
3619 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3620 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
3621 | } else if (type == peer_change_reset_in) { | |
3622 | if (CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_OLD_RCV) | |
3623 | || CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_NEW_RCV)) | |
3624 | bgp_route_refresh_send(peer, afi, safi, 0, 0, 0); | |
3625 | else { | |
3626 | if ((peer->doppelganger) | |
3627 | && (peer->doppelganger->status != Deleted) | |
3628 | && (!CHECK_FLAG(peer->doppelganger->flags, | |
3629 | PEER_FLAG_CONFIG_NODE))) | |
3630 | peer_delete(peer->doppelganger); | |
3631 | ||
3632 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3633 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
3634 | } | |
3635 | } else if (type == peer_change_reset_out) { | |
3636 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
3637 | bgp_announce_route(peer, afi, safi); | |
3638 | } | |
3639 | } | |
3640 | ||
3641 | struct peer_flag_action { | |
3642 | /* Peer's flag. */ | |
d7c0a89a | 3643 | uint32_t flag; |
d62a17ae | 3644 | |
3645 | /* This flag can be set for peer-group member. */ | |
d7c0a89a | 3646 | uint8_t not_for_member; |
d62a17ae | 3647 | |
3648 | /* Action when the flag is changed. */ | |
3649 | enum peer_change_type type; | |
d62a17ae | 3650 | }; |
3651 | ||
3652 | static const struct peer_flag_action peer_flag_action_list[] = { | |
3653 | {PEER_FLAG_PASSIVE, 0, peer_change_reset}, | |
3654 | {PEER_FLAG_SHUTDOWN, 0, peer_change_reset}, | |
3655 | {PEER_FLAG_DONT_CAPABILITY, 0, peer_change_none}, | |
3656 | {PEER_FLAG_OVERRIDE_CAPABILITY, 0, peer_change_none}, | |
3657 | {PEER_FLAG_STRICT_CAP_MATCH, 0, peer_change_none}, | |
3658 | {PEER_FLAG_DYNAMIC_CAPABILITY, 0, peer_change_reset}, | |
3659 | {PEER_FLAG_DISABLE_CONNECTED_CHECK, 0, peer_change_reset}, | |
3660 | {PEER_FLAG_CAPABILITY_ENHE, 0, peer_change_reset}, | |
47cbc09b | 3661 | {PEER_FLAG_ENFORCE_FIRST_AS, 0, peer_change_reset_in}, |
b90a8e13 PM |
3662 | {PEER_FLAG_ROUTEADV, 0, peer_change_none}, |
3663 | {PEER_FLAG_TIMER, 0, peer_change_none}, | |
3664 | {PEER_FLAG_TIMER_CONNECT, 0, peer_change_none}, | |
a14810f4 PM |
3665 | {PEER_FLAG_PASSWORD, 0, peer_change_none}, |
3666 | {PEER_FLAG_LOCAL_AS, 0, peer_change_none}, | |
3667 | {PEER_FLAG_LOCAL_AS_NO_PREPEND, 0, peer_change_none}, | |
3668 | {PEER_FLAG_LOCAL_AS_REPLACE_AS, 0, peer_change_none}, | |
3669 | {PEER_FLAG_UPDATE_SOURCE, 0, peer_change_none}, | |
d62a17ae | 3670 | {0, 0, 0}}; |
3671 | ||
3672 | static const struct peer_flag_action peer_af_flag_action_list[] = { | |
3673 | {PEER_FLAG_SEND_COMMUNITY, 1, peer_change_reset_out}, | |
3674 | {PEER_FLAG_SEND_EXT_COMMUNITY, 1, peer_change_reset_out}, | |
3675 | {PEER_FLAG_SEND_LARGE_COMMUNITY, 1, peer_change_reset_out}, | |
3676 | {PEER_FLAG_NEXTHOP_SELF, 1, peer_change_reset_out}, | |
3677 | {PEER_FLAG_REFLECTOR_CLIENT, 1, peer_change_reset}, | |
3678 | {PEER_FLAG_RSERVER_CLIENT, 1, peer_change_reset}, | |
3679 | {PEER_FLAG_SOFT_RECONFIG, 0, peer_change_reset_in}, | |
3680 | {PEER_FLAG_AS_PATH_UNCHANGED, 1, peer_change_reset_out}, | |
3681 | {PEER_FLAG_NEXTHOP_UNCHANGED, 1, peer_change_reset_out}, | |
3682 | {PEER_FLAG_MED_UNCHANGED, 1, peer_change_reset_out}, | |
598ce6bd | 3683 | {PEER_FLAG_DEFAULT_ORIGINATE, 0, peer_change_none}, |
d62a17ae | 3684 | {PEER_FLAG_REMOVE_PRIVATE_AS, 1, peer_change_reset_out}, |
3685 | {PEER_FLAG_ALLOWAS_IN, 0, peer_change_reset_in}, | |
3686 | {PEER_FLAG_ALLOWAS_IN_ORIGIN, 0, peer_change_reset_in}, | |
3687 | {PEER_FLAG_ORF_PREFIX_SM, 1, peer_change_reset}, | |
3688 | {PEER_FLAG_ORF_PREFIX_RM, 1, peer_change_reset}, | |
598ce6bd PM |
3689 | {PEER_FLAG_MAX_PREFIX, 0, peer_change_none}, |
3690 | {PEER_FLAG_MAX_PREFIX_WARNING, 0, peer_change_none}, | |
d62a17ae | 3691 | {PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED, 0, peer_change_reset_out}, |
3692 | {PEER_FLAG_FORCE_NEXTHOP_SELF, 1, peer_change_reset_out}, | |
3693 | {PEER_FLAG_REMOVE_PRIVATE_AS_ALL, 1, peer_change_reset_out}, | |
3694 | {PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE, 1, peer_change_reset_out}, | |
3695 | {PEER_FLAG_AS_OVERRIDE, 1, peer_change_reset_out}, | |
3696 | {PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE, 1, peer_change_reset_out}, | |
3697 | {PEER_FLAG_ADDPATH_TX_ALL_PATHS, 1, peer_change_reset}, | |
3698 | {PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS, 1, peer_change_reset}, | |
3699 | {PEER_FLAG_WEIGHT, 0, peer_change_reset_in}, | |
3700 | {0, 0, 0}}; | |
3701 | ||
3702 | /* Proper action set. */ | |
3703 | static int peer_flag_action_set(const struct peer_flag_action *action_list, | |
3704 | int size, struct peer_flag_action *action, | |
d7c0a89a | 3705 | uint32_t flag) |
d62a17ae | 3706 | { |
3707 | int i; | |
3708 | int found = 0; | |
3709 | int reset_in = 0; | |
3710 | int reset_out = 0; | |
3711 | const struct peer_flag_action *match = NULL; | |
3712 | ||
3713 | /* Check peer's frag action. */ | |
3714 | for (i = 0; i < size; i++) { | |
3715 | match = &action_list[i]; | |
3716 | ||
3717 | if (match->flag == 0) | |
3718 | break; | |
3719 | ||
3720 | if (match->flag & flag) { | |
3721 | found = 1; | |
3722 | ||
3723 | if (match->type == peer_change_reset_in) | |
3724 | reset_in = 1; | |
3725 | if (match->type == peer_change_reset_out) | |
3726 | reset_out = 1; | |
3727 | if (match->type == peer_change_reset) { | |
3728 | reset_in = 1; | |
3729 | reset_out = 1; | |
3730 | } | |
3731 | if (match->not_for_member) | |
3732 | action->not_for_member = 1; | |
3733 | } | |
3734 | } | |
3735 | ||
3736 | /* Set peer clear type. */ | |
3737 | if (reset_in && reset_out) | |
3738 | action->type = peer_change_reset; | |
3739 | else if (reset_in) | |
3740 | action->type = peer_change_reset_in; | |
3741 | else if (reset_out) | |
3742 | action->type = peer_change_reset_out; | |
3743 | else | |
3744 | action->type = peer_change_none; | |
3745 | ||
3746 | return found; | |
3747 | } | |
3748 | ||
d7c0a89a | 3749 | static void peer_flag_modify_action(struct peer *peer, uint32_t flag) |
d62a17ae | 3750 | { |
3751 | if (flag == PEER_FLAG_SHUTDOWN) { | |
3752 | if (CHECK_FLAG(peer->flags, flag)) { | |
3753 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT)) | |
3754 | peer_nsf_stop(peer); | |
3755 | ||
3756 | UNSET_FLAG(peer->sflags, PEER_STATUS_PREFIX_OVERFLOW); | |
3757 | if (peer->t_pmax_restart) { | |
3758 | BGP_TIMER_OFF(peer->t_pmax_restart); | |
3759 | if (bgp_debug_neighbor_events(peer)) | |
3760 | zlog_debug( | |
3761 | "%s Maximum-prefix restart timer canceled", | |
3762 | peer->host); | |
3763 | } | |
3764 | ||
3765 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT)) | |
3766 | peer_nsf_stop(peer); | |
3767 | ||
3768 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
3769 | char *msg = peer->tx_shutdown_message; | |
3770 | size_t msglen; | |
3771 | ||
3772 | if (!msg && peer_group_active(peer)) | |
3773 | msg = peer->group->conf | |
3774 | ->tx_shutdown_message; | |
3775 | msglen = msg ? strlen(msg) : 0; | |
3776 | if (msglen > 128) | |
3777 | msglen = 128; | |
3778 | ||
3779 | if (msglen) { | |
d7c0a89a | 3780 | uint8_t msgbuf[129]; |
d62a17ae | 3781 | |
3782 | msgbuf[0] = msglen; | |
3783 | memcpy(msgbuf + 1, msg, msglen); | |
3784 | ||
3785 | bgp_notify_send_with_data( | |
3786 | peer, BGP_NOTIFY_CEASE, | |
3787 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN, | |
3788 | msgbuf, msglen + 1); | |
3789 | } else | |
3790 | bgp_notify_send( | |
3791 | peer, BGP_NOTIFY_CEASE, | |
3792 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN); | |
3793 | } else | |
3794 | bgp_session_reset(peer); | |
3795 | } else { | |
3796 | peer->v_start = BGP_INIT_START_TIMER; | |
3797 | BGP_EVENT_ADD(peer, BGP_Stop); | |
3798 | } | |
3799 | } else if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
3800 | if (flag == PEER_FLAG_DYNAMIC_CAPABILITY) | |
3801 | peer->last_reset = PEER_DOWN_CAPABILITY_CHANGE; | |
3802 | else if (flag == PEER_FLAG_PASSIVE) | |
3803 | peer->last_reset = PEER_DOWN_PASSIVE_CHANGE; | |
3804 | else if (flag == PEER_FLAG_DISABLE_CONNECTED_CHECK) | |
3805 | peer->last_reset = PEER_DOWN_MULTIHOP_CHANGE; | |
3806 | ||
3807 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3808 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
3809 | } else | |
3810 | bgp_session_reset(peer); | |
3811 | } | |
3812 | ||
3813 | /* Change specified peer flag. */ | |
d7c0a89a | 3814 | static int peer_flag_modify(struct peer *peer, uint32_t flag, int set) |
d62a17ae | 3815 | { |
3816 | int found; | |
3817 | int size; | |
9fb964de PM |
3818 | bool invert, member_invert; |
3819 | struct peer *member; | |
d62a17ae | 3820 | struct listnode *node, *nnode; |
3821 | struct peer_flag_action action; | |
3822 | ||
3823 | memset(&action, 0, sizeof(struct peer_flag_action)); | |
3824 | size = sizeof peer_flag_action_list / sizeof(struct peer_flag_action); | |
3825 | ||
9fb964de | 3826 | invert = CHECK_FLAG(peer->flags_invert, flag); |
d62a17ae | 3827 | found = peer_flag_action_set(peer_flag_action_list, size, &action, |
3828 | flag); | |
3829 | ||
9fb964de | 3830 | /* Abort if no flag action exists. */ |
d62a17ae | 3831 | if (!found) |
3832 | return BGP_ERR_INVALID_FLAG; | |
3833 | ||
9fb964de | 3834 | /* Check for flag conflict: STRICT_CAP_MATCH && OVERRIDE_CAPABILITY */ |
d62a17ae | 3835 | if (set && CHECK_FLAG(peer->flags | flag, PEER_FLAG_STRICT_CAP_MATCH) |
3836 | && CHECK_FLAG(peer->flags | flag, PEER_FLAG_OVERRIDE_CAPABILITY)) | |
3837 | return BGP_ERR_PEER_FLAG_CONFLICT; | |
3838 | ||
9fb964de | 3839 | /* Handle flag updates where desired state matches current state. */ |
d62a17ae | 3840 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
9fb964de PM |
3841 | if (set && CHECK_FLAG(peer->flags, flag)) { |
3842 | COND_FLAG(peer->flags_override, flag, !invert); | |
d62a17ae | 3843 | return 0; |
9fb964de PM |
3844 | } |
3845 | ||
3846 | if (!set && !CHECK_FLAG(peer->flags, flag)) { | |
3847 | COND_FLAG(peer->flags_override, flag, invert); | |
d62a17ae | 3848 | return 0; |
9fb964de | 3849 | } |
d62a17ae | 3850 | } |
3851 | ||
9fb964de PM |
3852 | /* Inherit from peer-group or set/unset flags accordingly. */ |
3853 | if (peer_group_active(peer) && set == invert) | |
3854 | peer_flag_inherit(peer, flag); | |
d62a17ae | 3855 | else |
9fb964de | 3856 | COND_FLAG(peer->flags, flag, set); |
d62a17ae | 3857 | |
9fb964de | 3858 | /* Check if handling a regular peer. */ |
d62a17ae | 3859 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
9fb964de PM |
3860 | /* Update flag override state accordingly. */ |
3861 | COND_FLAG(peer->flags_override, flag, set != invert); | |
3862 | ||
3863 | /* Execute flag action on peer. */ | |
d62a17ae | 3864 | if (action.type == peer_change_reset) |
3865 | peer_flag_modify_action(peer, flag); | |
3866 | ||
9fb964de | 3867 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 3868 | return 0; |
3869 | } | |
3870 | ||
9fb964de PM |
3871 | /* |
3872 | * Update peer-group members, unless they are explicitely overriding | |
3873 | * peer-group configuration. | |
3874 | */ | |
3875 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
3876 | /* Skip peers with overridden configuration. */ | |
3877 | if (CHECK_FLAG(member->flags_override, flag)) | |
3878 | continue; | |
d62a17ae | 3879 | |
527de3dc PM |
3880 | /* Check if only member without group is inverted. */ |
3881 | member_invert = | |
3882 | CHECK_FLAG(member->flags_invert, flag) && !invert; | |
d62a17ae | 3883 | |
9fb964de PM |
3884 | /* Skip peers with equivalent configuration. */ |
3885 | if (set != member_invert && CHECK_FLAG(member->flags, flag)) | |
d62a17ae | 3886 | continue; |
3887 | ||
9fb964de | 3888 | if (set == member_invert && !CHECK_FLAG(member->flags, flag)) |
d62a17ae | 3889 | continue; |
3890 | ||
9fb964de PM |
3891 | /* Update flag on peer-group member. */ |
3892 | COND_FLAG(member->flags, flag, set != member_invert); | |
d62a17ae | 3893 | |
9fb964de | 3894 | /* Execute flag action on peer-group member. */ |
d62a17ae | 3895 | if (action.type == peer_change_reset) |
9fb964de | 3896 | peer_flag_modify_action(member, flag); |
d62a17ae | 3897 | } |
9fb964de | 3898 | |
d62a17ae | 3899 | return 0; |
3900 | } | |
3901 | ||
d7c0a89a | 3902 | int peer_flag_set(struct peer *peer, uint32_t flag) |
d62a17ae | 3903 | { |
3904 | return peer_flag_modify(peer, flag, 1); | |
3905 | } | |
3906 | ||
d7c0a89a | 3907 | int peer_flag_unset(struct peer *peer, uint32_t flag) |
d62a17ae | 3908 | { |
3909 | return peer_flag_modify(peer, flag, 0); | |
3910 | } | |
3911 | ||
3912 | static int peer_af_flag_modify(struct peer *peer, afi_t afi, safi_t safi, | |
27c05d4d | 3913 | uint32_t flag, bool set) |
d62a17ae | 3914 | { |
3915 | int found; | |
3916 | int size; | |
27c05d4d | 3917 | int addpath_tx_used; |
527de3dc PM |
3918 | bool invert, member_invert; |
3919 | struct bgp *bgp; | |
3920 | struct peer *member; | |
d62a17ae | 3921 | struct listnode *node, *nnode; |
d62a17ae | 3922 | struct peer_flag_action action; |
d62a17ae | 3923 | |
3924 | memset(&action, 0, sizeof(struct peer_flag_action)); | |
3925 | size = sizeof peer_af_flag_action_list | |
3926 | / sizeof(struct peer_flag_action); | |
3927 | ||
27c05d4d | 3928 | invert = CHECK_FLAG(peer->af_flags_invert[afi][safi], flag); |
d62a17ae | 3929 | found = peer_flag_action_set(peer_af_flag_action_list, size, &action, |
3930 | flag); | |
3931 | ||
527de3dc | 3932 | /* Abort if flag action exists. */ |
d62a17ae | 3933 | if (!found) |
3934 | return BGP_ERR_INVALID_FLAG; | |
3935 | ||
3936 | /* Special check for reflector client. */ | |
3937 | if (flag & PEER_FLAG_REFLECTOR_CLIENT | |
3938 | && peer_sort(peer) != BGP_PEER_IBGP) | |
3939 | return BGP_ERR_NOT_INTERNAL_PEER; | |
3940 | ||
3941 | /* Special check for remove-private-AS. */ | |
3942 | if (flag & PEER_FLAG_REMOVE_PRIVATE_AS | |
3943 | && peer_sort(peer) == BGP_PEER_IBGP) | |
3944 | return BGP_ERR_REMOVE_PRIVATE_AS; | |
3945 | ||
3946 | /* as-override is not allowed for IBGP peers */ | |
3947 | if (flag & PEER_FLAG_AS_OVERRIDE && peer_sort(peer) == BGP_PEER_IBGP) | |
3948 | return BGP_ERR_AS_OVERRIDE; | |
3949 | ||
527de3dc | 3950 | /* Handle flag updates where desired state matches current state. */ |
d62a17ae | 3951 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
598ce6bd | 3952 | if (set && CHECK_FLAG(peer->af_flags[afi][safi], flag)) { |
527de3dc PM |
3953 | COND_FLAG(peer->af_flags_override[afi][safi], flag, |
3954 | !invert); | |
d62a17ae | 3955 | return 0; |
598ce6bd PM |
3956 | } |
3957 | ||
3958 | if (!set && !CHECK_FLAG(peer->af_flags[afi][safi], flag)) { | |
527de3dc PM |
3959 | COND_FLAG(peer->af_flags_override[afi][safi], flag, |
3960 | invert); | |
d62a17ae | 3961 | return 0; |
598ce6bd | 3962 | } |
d62a17ae | 3963 | } |
3964 | ||
ace295a9 MK |
3965 | /* |
3966 | * For EVPN we implicitly set the NEXTHOP_UNCHANGED flag, | |
3967 | * if we are setting/unsetting flags which conflict with this flag | |
3968 | * handle accordingly | |
3969 | */ | |
3970 | if (afi == AFI_L2VPN && safi == SAFI_EVPN) { | |
3971 | if (set) { | |
3972 | ||
3518f352 DS |
3973 | /* |
3974 | * if we are setting NEXTHOP_SELF, we need to unset the | |
3975 | * NEXTHOP_UNCHANGED flag | |
3976 | */ | |
ace295a9 MK |
3977 | if (CHECK_FLAG(flag, PEER_FLAG_NEXTHOP_SELF) || |
3978 | CHECK_FLAG(flag, PEER_FLAG_FORCE_NEXTHOP_SELF)) | |
3979 | UNSET_FLAG(peer->af_flags[afi][safi], | |
3980 | PEER_FLAG_NEXTHOP_UNCHANGED); | |
3981 | } else { | |
3982 | ||
3518f352 DS |
3983 | /* |
3984 | * if we are unsetting NEXTHOP_SELF, we need to set the | |
ace295a9 MK |
3985 | * NEXTHOP_UNCHANGED flag to reset the defaults for EVPN |
3986 | */ | |
3987 | if (CHECK_FLAG(flag, PEER_FLAG_NEXTHOP_SELF) || | |
3988 | CHECK_FLAG(flag, PEER_FLAG_FORCE_NEXTHOP_SELF)) | |
3989 | SET_FLAG(peer->af_flags[afi][safi], | |
3990 | PEER_FLAG_NEXTHOP_UNCHANGED); | |
3991 | } | |
3992 | } | |
3993 | ||
527de3dc PM |
3994 | /* Inherit from peer-group or set/unset flags accordingly. */ |
3995 | if (peer_group_active(peer) && set == invert) | |
3996 | peer_af_flag_inherit(peer, afi, safi, flag); | |
3997 | else | |
3998 | COND_FLAG(peer->af_flags[afi][safi], flag, set); | |
d62a17ae | 3999 | |
4000 | /* Execute action when peer is established. */ | |
4001 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP) | |
4002 | && peer->status == Established) { | |
4003 | if (!set && flag == PEER_FLAG_SOFT_RECONFIG) | |
4004 | bgp_clear_adj_in(peer, afi, safi); | |
4005 | else { | |
4006 | if (flag == PEER_FLAG_REFLECTOR_CLIENT) | |
4007 | peer->last_reset = PEER_DOWN_RR_CLIENT_CHANGE; | |
4008 | else if (flag == PEER_FLAG_RSERVER_CLIENT) | |
4009 | peer->last_reset = PEER_DOWN_RS_CLIENT_CHANGE; | |
4010 | else if (flag == PEER_FLAG_ORF_PREFIX_SM) | |
4011 | peer->last_reset = PEER_DOWN_CAPABILITY_CHANGE; | |
4012 | else if (flag == PEER_FLAG_ORF_PREFIX_RM) | |
4013 | peer->last_reset = PEER_DOWN_CAPABILITY_CHANGE; | |
4014 | ||
4015 | peer_change_action(peer, afi, safi, action.type); | |
4016 | } | |
4017 | } | |
4018 | ||
527de3dc PM |
4019 | /* Check if handling a regular peer. */ |
4020 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4021 | COND_FLAG(peer->af_flags_override[afi][safi], flag, | |
4022 | set != invert); | |
4023 | } else { | |
4024 | /* | |
4025 | * Update peer-group members, unless they are explicitely | |
4026 | * overriding peer-group configuration. | |
4027 | */ | |
4028 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, | |
4029 | member)) { | |
4030 | /* Skip peers with overridden configuration. */ | |
4031 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
598ce6bd PM |
4032 | flag)) |
4033 | continue; | |
4034 | ||
527de3dc PM |
4035 | /* Check if only member without group is inverted. */ |
4036 | member_invert = | |
4037 | CHECK_FLAG(member->af_flags_invert[afi][safi], | |
4038 | flag) | |
4039 | && !invert; | |
4040 | ||
4041 | /* Skip peers with equivalent configuration. */ | |
4042 | if (set != member_invert | |
4043 | && CHECK_FLAG(member->af_flags[afi][safi], flag)) | |
d62a17ae | 4044 | continue; |
4045 | ||
527de3dc PM |
4046 | if (set == member_invert |
4047 | && !CHECK_FLAG(member->af_flags[afi][safi], flag)) | |
d62a17ae | 4048 | continue; |
4049 | ||
527de3dc PM |
4050 | /* Update flag on peer-group member. */ |
4051 | COND_FLAG(member->af_flags[afi][safi], flag, | |
4052 | set != member_invert); | |
d62a17ae | 4053 | |
527de3dc PM |
4054 | /* Execute flag action on peer-group member. */ |
4055 | if (member->status == Established) { | |
d62a17ae | 4056 | if (!set && flag == PEER_FLAG_SOFT_RECONFIG) |
527de3dc | 4057 | bgp_clear_adj_in(member, afi, safi); |
d62a17ae | 4058 | else { |
4059 | if (flag == PEER_FLAG_REFLECTOR_CLIENT) | |
527de3dc | 4060 | member->last_reset = |
d62a17ae | 4061 | PEER_DOWN_RR_CLIENT_CHANGE; |
4062 | else if (flag | |
4063 | == PEER_FLAG_RSERVER_CLIENT) | |
527de3dc | 4064 | member->last_reset = |
d62a17ae | 4065 | PEER_DOWN_RS_CLIENT_CHANGE; |
4066 | else if (flag | |
4067 | == PEER_FLAG_ORF_PREFIX_SM) | |
527de3dc | 4068 | member->last_reset = |
d62a17ae | 4069 | PEER_DOWN_CAPABILITY_CHANGE; |
4070 | else if (flag | |
4071 | == PEER_FLAG_ORF_PREFIX_RM) | |
527de3dc | 4072 | member->last_reset = |
d62a17ae | 4073 | PEER_DOWN_CAPABILITY_CHANGE; |
4074 | ||
527de3dc | 4075 | peer_change_action(member, afi, safi, |
d62a17ae | 4076 | action.type); |
4077 | } | |
4078 | } | |
4079 | } | |
4080 | } | |
4081 | ||
4082 | /* Track if addpath TX is in use */ | |
996c9314 LB |
4083 | if (flag & (PEER_FLAG_ADDPATH_TX_ALL_PATHS |
4084 | | PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS)) { | |
d62a17ae | 4085 | bgp = peer->bgp; |
4086 | addpath_tx_used = 0; | |
4087 | ||
4088 | if (set) { | |
4089 | addpath_tx_used = 1; | |
4090 | ||
4091 | if (flag & PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS) { | |
4092 | if (!bgp_flag_check( | |
4093 | bgp, BGP_FLAG_DETERMINISTIC_MED)) { | |
4094 | zlog_warn( | |
4095 | "%s: enabling bgp deterministic-med, this is required" | |
4096 | " for addpath-tx-bestpath-per-AS", | |
4097 | peer->host); | |
4098 | bgp_flag_set( | |
4099 | bgp, | |
4100 | BGP_FLAG_DETERMINISTIC_MED); | |
4101 | bgp_recalculate_all_bestpaths(bgp); | |
4102 | } | |
4103 | } | |
4104 | } else { | |
4105 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, | |
527de3dc PM |
4106 | member)) { |
4107 | if (CHECK_FLAG(member->af_flags[afi][safi], | |
d62a17ae | 4108 | PEER_FLAG_ADDPATH_TX_ALL_PATHS) |
4109 | || CHECK_FLAG( | |
527de3dc | 4110 | member->af_flags[afi][safi], |
d62a17ae | 4111 | PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS)) { |
4112 | addpath_tx_used = 1; | |
4113 | break; | |
4114 | } | |
4115 | } | |
4116 | } | |
4117 | ||
4118 | bgp->addpath_tx_used[afi][safi] = addpath_tx_used; | |
4119 | } | |
4120 | ||
4121 | return 0; | |
4122 | } | |
4123 | ||
d7c0a89a | 4124 | int peer_af_flag_set(struct peer *peer, afi_t afi, safi_t safi, uint32_t flag) |
d62a17ae | 4125 | { |
4126 | return peer_af_flag_modify(peer, afi, safi, flag, 1); | |
4127 | } | |
4128 | ||
d7c0a89a | 4129 | int peer_af_flag_unset(struct peer *peer, afi_t afi, safi_t safi, uint32_t flag) |
d62a17ae | 4130 | { |
4131 | return peer_af_flag_modify(peer, afi, safi, flag, 0); | |
4132 | } | |
4133 | ||
4134 | ||
4135 | int peer_tx_shutdown_message_set(struct peer *peer, const char *msg) | |
4136 | { | |
4137 | XFREE(MTYPE_PEER_TX_SHUTDOWN_MSG, peer->tx_shutdown_message); | |
4138 | peer->tx_shutdown_message = | |
4139 | msg ? XSTRDUP(MTYPE_PEER_TX_SHUTDOWN_MSG, msg) : NULL; | |
4140 | return 0; | |
4141 | } | |
4142 | ||
4143 | int peer_tx_shutdown_message_unset(struct peer *peer) | |
4144 | { | |
4145 | XFREE(MTYPE_PEER_TX_SHUTDOWN_MSG, peer->tx_shutdown_message); | |
4146 | return 0; | |
4147 | } | |
4148 | ||
4149 | ||
4150 | /* EBGP multihop configuration. */ | |
4151 | int peer_ebgp_multihop_set(struct peer *peer, int ttl) | |
4152 | { | |
4153 | struct peer_group *group; | |
4154 | struct listnode *node, *nnode; | |
4155 | struct peer *peer1; | |
4156 | ||
4157 | if (peer->sort == BGP_PEER_IBGP || peer->conf_if) | |
4158 | return 0; | |
4159 | ||
4160 | /* see comment in peer_ttl_security_hops_set() */ | |
4161 | if (ttl != MAXTTL) { | |
4162 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4163 | group = peer->group; | |
4164 | if (group->conf->gtsm_hops != 0) | |
4165 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
4166 | ||
4167 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, | |
4168 | peer1)) { | |
4169 | if (peer1->sort == BGP_PEER_IBGP) | |
4170 | continue; | |
4171 | ||
4172 | if (peer1->gtsm_hops != 0) | |
4173 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
4174 | } | |
4175 | } else { | |
4176 | if (peer->gtsm_hops != 0) | |
4177 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
4178 | } | |
4179 | } | |
4180 | ||
4181 | peer->ttl = ttl; | |
4182 | ||
4183 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4184 | if (peer->fd >= 0 && peer->sort != BGP_PEER_IBGP) { | |
4185 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
4186 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4187 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4188 | else | |
4189 | bgp_session_reset(peer); | |
4190 | } | |
4191 | } else { | |
4192 | group = peer->group; | |
4193 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
4194 | if (peer->sort == BGP_PEER_IBGP) | |
4195 | continue; | |
4196 | ||
4197 | peer->ttl = group->conf->ttl; | |
4198 | ||
4199 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
4200 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4201 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4202 | else | |
4203 | bgp_session_reset(peer); | |
4204 | } | |
4205 | } | |
4206 | return 0; | |
4207 | } | |
4208 | ||
4209 | int peer_ebgp_multihop_unset(struct peer *peer) | |
4210 | { | |
4211 | struct peer_group *group; | |
4212 | struct listnode *node, *nnode; | |
4213 | ||
4214 | if (peer->sort == BGP_PEER_IBGP) | |
4215 | return 0; | |
4216 | ||
4217 | if (peer->gtsm_hops != 0 && peer->ttl != MAXTTL) | |
4218 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
4219 | ||
4220 | if (peer_group_active(peer)) | |
4221 | peer->ttl = peer->group->conf->ttl; | |
4222 | else | |
4223 | peer->ttl = 1; | |
4224 | ||
4225 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4226 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
4227 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4228 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4229 | else | |
4230 | bgp_session_reset(peer); | |
4231 | } else { | |
4232 | group = peer->group; | |
4233 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
4234 | if (peer->sort == BGP_PEER_IBGP) | |
4235 | continue; | |
4236 | ||
4237 | peer->ttl = 1; | |
4238 | ||
4239 | if (peer->fd >= 0) { | |
4240 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
4241 | bgp_notify_send( | |
4242 | peer, BGP_NOTIFY_CEASE, | |
4243 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4244 | else | |
4245 | bgp_session_reset(peer); | |
4246 | } | |
4247 | } | |
4248 | } | |
4249 | return 0; | |
4250 | } | |
4251 | ||
4252 | /* Neighbor description. */ | |
4253 | int peer_description_set(struct peer *peer, const char *desc) | |
4254 | { | |
4255 | if (peer->desc) | |
4256 | XFREE(MTYPE_PEER_DESC, peer->desc); | |
4257 | ||
4258 | peer->desc = XSTRDUP(MTYPE_PEER_DESC, desc); | |
4259 | ||
4260 | return 0; | |
4261 | } | |
4262 | ||
4263 | int peer_description_unset(struct peer *peer) | |
4264 | { | |
4265 | if (peer->desc) | |
4266 | XFREE(MTYPE_PEER_DESC, peer->desc); | |
4267 | ||
4268 | peer->desc = NULL; | |
4269 | ||
4270 | return 0; | |
4271 | } | |
4272 | ||
4273 | /* Neighbor update-source. */ | |
4274 | int peer_update_source_if_set(struct peer *peer, const char *ifname) | |
4275 | { | |
a14810f4 | 4276 | struct peer *member; |
d62a17ae | 4277 | struct listnode *node, *nnode; |
4278 | ||
a14810f4 PM |
4279 | /* Set flag and configuration on peer. */ |
4280 | peer_flag_set(peer, PEER_FLAG_UPDATE_SOURCE); | |
d62a17ae | 4281 | if (peer->update_if) { |
a14810f4 | 4282 | if (strcmp(peer->update_if, ifname) == 0) |
d62a17ae | 4283 | return 0; |
d62a17ae | 4284 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); |
d62a17ae | 4285 | } |
d62a17ae | 4286 | peer->update_if = XSTRDUP(MTYPE_PEER_UPDATE_SOURCE, ifname); |
a14810f4 PM |
4287 | sockunion_free(peer->update_source); |
4288 | peer->update_source = NULL; | |
d62a17ae | 4289 | |
a14810f4 | 4290 | /* Check if handling a regular peer. */ |
d62a17ae | 4291 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 4292 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 4293 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
4294 | peer->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4295 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4296 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4297 | } else | |
4298 | bgp_session_reset(peer); | |
a14810f4 PM |
4299 | |
4300 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 4301 | return 0; |
4302 | } | |
4303 | ||
a14810f4 PM |
4304 | /* |
4305 | * Set flag and configuration on all peer-group members, unless they are | |
4306 | * explicitely overriding peer-group configuration. | |
4307 | */ | |
4308 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4309 | /* Skip peers with overridden configuration. */ | |
4310 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_UPDATE_SOURCE)) | |
4311 | continue; | |
d62a17ae | 4312 | |
a14810f4 PM |
4313 | /* Skip peers with the same configuration. */ |
4314 | if (member->update_if) { | |
4315 | if (strcmp(member->update_if, ifname) == 0) | |
4316 | continue; | |
4317 | XFREE(MTYPE_PEER_UPDATE_SOURCE, member->update_if); | |
d62a17ae | 4318 | } |
4319 | ||
a14810f4 PM |
4320 | /* Set flag and configuration on peer-group member. */ |
4321 | SET_FLAG(member->flags, PEER_FLAG_UPDATE_SOURCE); | |
4322 | member->update_if = XSTRDUP(MTYPE_PEER_UPDATE_SOURCE, ifname); | |
4323 | sockunion_free(member->update_source); | |
4324 | member->update_source = NULL; | |
4325 | ||
4326 | /* Send notification or reset peer depending on state. */ | |
4327 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) { | |
4328 | member->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4329 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 4330 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
4331 | } else | |
a14810f4 | 4332 | bgp_session_reset(member); |
d62a17ae | 4333 | } |
a14810f4 | 4334 | |
d62a17ae | 4335 | return 0; |
4336 | } | |
4337 | ||
4338 | int peer_update_source_addr_set(struct peer *peer, const union sockunion *su) | |
4339 | { | |
a14810f4 | 4340 | struct peer *member; |
d62a17ae | 4341 | struct listnode *node, *nnode; |
4342 | ||
a14810f4 PM |
4343 | /* Set flag and configuration on peer. */ |
4344 | peer_flag_set(peer, PEER_FLAG_UPDATE_SOURCE); | |
d62a17ae | 4345 | if (peer->update_source) { |
a14810f4 | 4346 | if (sockunion_cmp(peer->update_source, su) == 0) |
d62a17ae | 4347 | return 0; |
4348 | sockunion_free(peer->update_source); | |
d62a17ae | 4349 | } |
d62a17ae | 4350 | peer->update_source = sockunion_dup(su); |
a14810f4 | 4351 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); |
d62a17ae | 4352 | |
a14810f4 | 4353 | /* Check if handling a regular peer. */ |
d62a17ae | 4354 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 4355 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 4356 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
4357 | peer->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4358 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4359 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4360 | } else | |
4361 | bgp_session_reset(peer); | |
a14810f4 PM |
4362 | |
4363 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 4364 | return 0; |
4365 | } | |
4366 | ||
a14810f4 PM |
4367 | /* |
4368 | * Set flag and configuration on all peer-group members, unless they are | |
4369 | * explicitely overriding peer-group configuration. | |
4370 | */ | |
4371 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4372 | /* Skip peers with overridden configuration. */ | |
4373 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_UPDATE_SOURCE)) | |
4374 | continue; | |
d62a17ae | 4375 | |
a14810f4 PM |
4376 | /* Skip peers with the same configuration. */ |
4377 | if (member->update_source) { | |
4378 | if (sockunion_cmp(member->update_source, su) == 0) | |
4379 | continue; | |
4380 | sockunion_free(member->update_source); | |
d62a17ae | 4381 | } |
4382 | ||
a14810f4 PM |
4383 | /* Set flag and configuration on peer-group member. */ |
4384 | SET_FLAG(member->flags, PEER_FLAG_UPDATE_SOURCE); | |
4385 | member->update_source = sockunion_dup(su); | |
4386 | XFREE(MTYPE_PEER_UPDATE_SOURCE, member->update_if); | |
4387 | ||
4388 | /* Send notification or reset peer depending on state. */ | |
4389 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) { | |
4390 | member->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4391 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 4392 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
4393 | } else | |
a14810f4 | 4394 | bgp_session_reset(member); |
d62a17ae | 4395 | } |
a14810f4 | 4396 | |
d62a17ae | 4397 | return 0; |
4398 | } | |
4399 | ||
4400 | int peer_update_source_unset(struct peer *peer) | |
4401 | { | |
a14810f4 | 4402 | struct peer *member; |
d62a17ae | 4403 | struct listnode *node, *nnode; |
4404 | ||
a14810f4 | 4405 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_UPDATE_SOURCE)) |
d62a17ae | 4406 | return 0; |
4407 | ||
a14810f4 PM |
4408 | /* Inherit configuration from peer-group if peer is member. */ |
4409 | if (peer_group_active(peer)) { | |
4410 | peer_flag_inherit(peer, PEER_FLAG_UPDATE_SOURCE); | |
4411 | PEER_SU_ATTR_INHERIT(peer, peer->group, update_source); | |
4412 | PEER_STR_ATTR_INHERIT(peer, peer->group, update_if, | |
4413 | MTYPE_PEER_UPDATE_SOURCE); | |
4414 | } else { | |
4415 | /* Otherwise remove flag and configuration from peer. */ | |
4416 | peer_flag_unset(peer, PEER_FLAG_UPDATE_SOURCE); | |
d62a17ae | 4417 | sockunion_free(peer->update_source); |
4418 | peer->update_source = NULL; | |
d62a17ae | 4419 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); |
d62a17ae | 4420 | } |
4421 | ||
a14810f4 | 4422 | /* Check if handling a regular peer. */ |
d62a17ae | 4423 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 4424 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 4425 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
4426 | peer->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4427 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4428 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4429 | } else | |
4430 | bgp_session_reset(peer); | |
a14810f4 PM |
4431 | |
4432 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 4433 | return 0; |
4434 | } | |
4435 | ||
a14810f4 PM |
4436 | /* |
4437 | * Set flag and configuration on all peer-group members, unless they are | |
4438 | * explicitely overriding peer-group configuration. | |
4439 | */ | |
4440 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4441 | /* Skip peers with overridden configuration. */ | |
4442 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_UPDATE_SOURCE)) | |
d62a17ae | 4443 | continue; |
4444 | ||
a14810f4 PM |
4445 | /* Skip peers with the same configuration. */ |
4446 | if (!CHECK_FLAG(member->flags, PEER_FLAG_UPDATE_SOURCE) | |
4447 | && !member->update_source && !member->update_if) | |
4448 | continue; | |
d62a17ae | 4449 | |
a14810f4 PM |
4450 | /* Remove flag and configuration on peer-group member. */ |
4451 | UNSET_FLAG(member->flags, PEER_FLAG_UPDATE_SOURCE); | |
4452 | sockunion_free(member->update_source); | |
4453 | member->update_source = NULL; | |
4454 | XFREE(MTYPE_PEER_UPDATE_SOURCE, member->update_if); | |
4455 | ||
4456 | /* Send notification or reset peer depending on state. */ | |
4457 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) { | |
4458 | member->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4459 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 4460 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
4461 | } else | |
a14810f4 | 4462 | bgp_session_reset(member); |
d62a17ae | 4463 | } |
a14810f4 | 4464 | |
d62a17ae | 4465 | return 0; |
4466 | } | |
4467 | ||
4468 | int peer_default_originate_set(struct peer *peer, afi_t afi, safi_t safi, | |
4469 | const char *rmap) | |
4470 | { | |
598ce6bd | 4471 | struct peer *member; |
d62a17ae | 4472 | struct listnode *node, *nnode; |
4473 | ||
598ce6bd PM |
4474 | /* Set flag and configuration on peer. */ |
4475 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_DEFAULT_ORIGINATE); | |
4476 | if (rmap) { | |
4477 | if (!peer->default_rmap[afi][safi].name | |
4478 | || strcmp(rmap, peer->default_rmap[afi][safi].name) != 0) { | |
d62a17ae | 4479 | if (peer->default_rmap[afi][safi].name) |
4480 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
4481 | peer->default_rmap[afi][safi].name); | |
598ce6bd | 4482 | |
d62a17ae | 4483 | peer->default_rmap[afi][safi].name = |
4484 | XSTRDUP(MTYPE_ROUTE_MAP_NAME, rmap); | |
4485 | peer->default_rmap[afi][safi].map = | |
4486 | route_map_lookup_by_name(rmap); | |
4487 | } | |
598ce6bd PM |
4488 | } else if (!rmap) { |
4489 | if (peer->default_rmap[afi][safi].name) | |
4490 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
4491 | peer->default_rmap[afi][safi].name); | |
4492 | ||
4493 | peer->default_rmap[afi][safi].name = NULL; | |
4494 | peer->default_rmap[afi][safi].map = NULL; | |
d62a17ae | 4495 | } |
4496 | ||
598ce6bd | 4497 | /* Check if handling a regular peer. */ |
d62a17ae | 4498 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
598ce6bd | 4499 | /* Update peer route announcements. */ |
d62a17ae | 4500 | if (peer->status == Established && peer->afc_nego[afi][safi]) { |
4501 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
4502 | bgp_default_originate(peer, afi, safi, 0); | |
4503 | bgp_announce_route(peer, afi, safi); | |
4504 | } | |
598ce6bd PM |
4505 | |
4506 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 4507 | return 0; |
4508 | } | |
4509 | ||
598ce6bd PM |
4510 | /* |
4511 | * Set flag and configuration on all peer-group members, unless they are | |
4512 | * explicitely overriding peer-group configuration. | |
4513 | */ | |
4514 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4515 | /* Skip peers with overridden configuration. */ | |
4516 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
4517 | PEER_FLAG_DEFAULT_ORIGINATE)) | |
4518 | continue; | |
d62a17ae | 4519 | |
598ce6bd PM |
4520 | /* Set flag and configuration on peer-group member. */ |
4521 | SET_FLAG(member->af_flags[afi][safi], | |
4522 | PEER_FLAG_DEFAULT_ORIGINATE); | |
d62a17ae | 4523 | if (rmap) { |
598ce6bd | 4524 | if (member->default_rmap[afi][safi].name) |
d62a17ae | 4525 | XFREE(MTYPE_ROUTE_MAP_NAME, |
598ce6bd PM |
4526 | member->default_rmap[afi][safi].name); |
4527 | ||
4528 | member->default_rmap[afi][safi].name = | |
d62a17ae | 4529 | XSTRDUP(MTYPE_ROUTE_MAP_NAME, rmap); |
598ce6bd | 4530 | member->default_rmap[afi][safi].map = |
d62a17ae | 4531 | route_map_lookup_by_name(rmap); |
4532 | } | |
4533 | ||
598ce6bd PM |
4534 | /* Update peer route announcements. */ |
4535 | if (member->status == Established | |
4536 | && member->afc_nego[afi][safi]) { | |
4537 | update_group_adjust_peer( | |
4538 | peer_af_find(member, afi, safi)); | |
4539 | bgp_default_originate(member, afi, safi, 0); | |
4540 | bgp_announce_route(member, afi, safi); | |
d62a17ae | 4541 | } |
4542 | } | |
598ce6bd | 4543 | |
d62a17ae | 4544 | return 0; |
4545 | } | |
4546 | ||
4547 | int peer_default_originate_unset(struct peer *peer, afi_t afi, safi_t safi) | |
4548 | { | |
598ce6bd | 4549 | struct peer *member; |
d62a17ae | 4550 | struct listnode *node, *nnode; |
4551 | ||
598ce6bd PM |
4552 | /* Inherit configuration from peer-group if peer is member. */ |
4553 | if (peer_group_active(peer)) { | |
4554 | peer_af_flag_inherit(peer, afi, safi, | |
4555 | PEER_FLAG_DEFAULT_ORIGINATE); | |
e7103a96 PM |
4556 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
4557 | default_rmap[afi][safi].name, | |
4558 | MTYPE_ROUTE_MAP_NAME); | |
4559 | PEER_ATTR_INHERIT(peer, peer->group, | |
4560 | default_rmap[afi][safi].map); | |
598ce6bd PM |
4561 | } else { |
4562 | /* Otherwise remove flag and configuration from peer. */ | |
4563 | peer_af_flag_unset(peer, afi, safi, | |
4564 | PEER_FLAG_DEFAULT_ORIGINATE); | |
d62a17ae | 4565 | if (peer->default_rmap[afi][safi].name) |
4566 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
4567 | peer->default_rmap[afi][safi].name); | |
4568 | peer->default_rmap[afi][safi].name = NULL; | |
4569 | peer->default_rmap[afi][safi].map = NULL; | |
4570 | } | |
4571 | ||
598ce6bd | 4572 | /* Check if handling a regular peer. */ |
d62a17ae | 4573 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
598ce6bd | 4574 | /* Update peer route announcements. */ |
d62a17ae | 4575 | if (peer->status == Established && peer->afc_nego[afi][safi]) { |
4576 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
4577 | bgp_default_originate(peer, afi, safi, 1); | |
4578 | bgp_announce_route(peer, afi, safi); | |
4579 | } | |
598ce6bd PM |
4580 | |
4581 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 4582 | return 0; |
4583 | } | |
4584 | ||
598ce6bd PM |
4585 | /* |
4586 | * Remove flag and configuration from all peer-group members, unless | |
4587 | * they are explicitely overriding peer-group configuration. | |
4588 | */ | |
4589 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4590 | /* Skip peers with overridden configuration. */ | |
4591 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
4592 | PEER_FLAG_DEFAULT_ORIGINATE)) | |
4593 | continue; | |
4594 | ||
4595 | /* Remove flag and configuration on peer-group member. */ | |
d62a17ae | 4596 | UNSET_FLAG(peer->af_flags[afi][safi], |
4597 | PEER_FLAG_DEFAULT_ORIGINATE); | |
d62a17ae | 4598 | if (peer->default_rmap[afi][safi].name) |
4599 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
4600 | peer->default_rmap[afi][safi].name); | |
4601 | peer->default_rmap[afi][safi].name = NULL; | |
4602 | peer->default_rmap[afi][safi].map = NULL; | |
4603 | ||
598ce6bd | 4604 | /* Update peer route announcements. */ |
d62a17ae | 4605 | if (peer->status == Established && peer->afc_nego[afi][safi]) { |
4606 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
4607 | bgp_default_originate(peer, afi, safi, 1); | |
4608 | bgp_announce_route(peer, afi, safi); | |
4609 | } | |
4610 | } | |
598ce6bd | 4611 | |
d62a17ae | 4612 | return 0; |
4613 | } | |
4614 | ||
d7c0a89a | 4615 | int peer_port_set(struct peer *peer, uint16_t port) |
d62a17ae | 4616 | { |
4617 | peer->port = port; | |
4618 | return 0; | |
4619 | } | |
4620 | ||
4621 | int peer_port_unset(struct peer *peer) | |
4622 | { | |
4623 | peer->port = BGP_PORT_DEFAULT; | |
4624 | return 0; | |
4625 | } | |
4626 | ||
4627 | /* | |
4628 | * Helper function that is called after the name of the policy | |
4629 | * being used by a peer has changed (AF specific). Automatically | |
4630 | * initiates inbound or outbound processing as needed. | |
4631 | */ | |
4632 | static void peer_on_policy_change(struct peer *peer, afi_t afi, safi_t safi, | |
4633 | int outbound) | |
4634 | { | |
4635 | if (outbound) { | |
4636 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
4637 | if (peer->status == Established) | |
4638 | bgp_announce_route(peer, afi, safi); | |
4639 | } else { | |
4640 | if (peer->status != Established) | |
4641 | return; | |
4642 | ||
4643 | if (CHECK_FLAG(peer->af_flags[afi][safi], | |
4644 | PEER_FLAG_SOFT_RECONFIG)) | |
4645 | bgp_soft_reconfig_in(peer, afi, safi); | |
4646 | else if (CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_OLD_RCV) | |
4647 | || CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_NEW_RCV)) | |
4648 | bgp_route_refresh_send(peer, afi, safi, 0, 0, 0); | |
4649 | } | |
4650 | } | |
4651 | ||
4652 | ||
4653 | /* neighbor weight. */ | |
d7c0a89a | 4654 | int peer_weight_set(struct peer *peer, afi_t afi, safi_t safi, uint16_t weight) |
d62a17ae | 4655 | { |
598ce6bd | 4656 | struct peer *member; |
d62a17ae | 4657 | struct listnode *node, *nnode; |
4658 | ||
598ce6bd PM |
4659 | /* Set flag and configuration on peer. */ |
4660 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_WEIGHT); | |
d62a17ae | 4661 | if (peer->weight[afi][safi] != weight) { |
4662 | peer->weight[afi][safi] = weight; | |
d62a17ae | 4663 | peer_on_policy_change(peer, afi, safi, 0); |
4664 | } | |
4665 | ||
598ce6bd | 4666 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 4667 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) |
4668 | return 0; | |
4669 | ||
598ce6bd PM |
4670 | /* |
4671 | * Set flag and configuration on all peer-group members, unless they are | |
4672 | * explicitely overriding peer-group configuration. | |
4673 | */ | |
4674 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4675 | /* Skip peers with overridden configuration. */ | |
4676 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
4677 | PEER_FLAG_WEIGHT)) | |
4678 | continue; | |
4679 | ||
4680 | /* Set flag and configuration on peer-group member. */ | |
4681 | SET_FLAG(member->af_flags[afi][safi], PEER_FLAG_WEIGHT); | |
4682 | if (member->weight[afi][safi] != weight) { | |
4683 | member->weight[afi][safi] = weight; | |
4684 | peer_on_policy_change(member, afi, safi, 0); | |
d62a17ae | 4685 | } |
4686 | } | |
598ce6bd | 4687 | |
d62a17ae | 4688 | return 0; |
4689 | } | |
4690 | ||
4691 | int peer_weight_unset(struct peer *peer, afi_t afi, safi_t safi) | |
4692 | { | |
598ce6bd | 4693 | struct peer *member; |
d62a17ae | 4694 | struct listnode *node, *nnode; |
4695 | ||
598ce6bd PM |
4696 | if (!CHECK_FLAG(peer->af_flags[afi][safi], PEER_FLAG_WEIGHT)) |
4697 | return 0; | |
4698 | ||
4699 | /* Inherit configuration from peer-group if peer is member. */ | |
d62a17ae | 4700 | if (peer_group_active(peer)) { |
598ce6bd | 4701 | peer_af_flag_inherit(peer, afi, safi, PEER_FLAG_WEIGHT); |
e7103a96 | 4702 | PEER_ATTR_INHERIT(peer, peer->group, weight[afi][safi]); |
d62a17ae | 4703 | |
598ce6bd PM |
4704 | peer_on_policy_change(peer, afi, safi, 0); |
4705 | return 0; | |
d62a17ae | 4706 | } |
4707 | ||
598ce6bd PM |
4708 | /* Remove flag and configuration from peer. */ |
4709 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_WEIGHT); | |
4710 | peer->weight[afi][safi] = 0; | |
4711 | peer_on_policy_change(peer, afi, safi, 0); | |
d62a17ae | 4712 | |
598ce6bd PM |
4713 | /* Skip peer-group mechanics for regular peers. */ |
4714 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
4715 | return 0; | |
d62a17ae | 4716 | |
598ce6bd PM |
4717 | /* |
4718 | * Remove flag and configuration from all peer-group members, unless | |
4719 | * they are explicitely overriding peer-group configuration. | |
4720 | */ | |
4721 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4722 | /* Skip peers with overridden configuration. */ | |
4723 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
4724 | PEER_FLAG_WEIGHT)) | |
4725 | continue; | |
4726 | ||
4727 | /* Skip peers where flag is already disabled. */ | |
4728 | if (!CHECK_FLAG(member->af_flags[afi][safi], PEER_FLAG_WEIGHT)) | |
4729 | continue; | |
4730 | ||
4731 | /* Remove flag and configuration on peer-group member. */ | |
4732 | UNSET_FLAG(member->af_flags[afi][safi], PEER_FLAG_WEIGHT); | |
4733 | member->weight[afi][safi] = 0; | |
4734 | peer_on_policy_change(member, afi, safi, 0); | |
d62a17ae | 4735 | } |
598ce6bd | 4736 | |
d62a17ae | 4737 | return 0; |
4738 | } | |
4739 | ||
d7c0a89a | 4740 | int peer_timers_set(struct peer *peer, uint32_t keepalive, uint32_t holdtime) |
d62a17ae | 4741 | { |
b90a8e13 | 4742 | struct peer *member; |
d62a17ae | 4743 | struct listnode *node, *nnode; |
4744 | ||
d62a17ae | 4745 | if (keepalive > 65535) |
4746 | return BGP_ERR_INVALID_VALUE; | |
4747 | ||
d62a17ae | 4748 | if (holdtime > 65535) |
4749 | return BGP_ERR_INVALID_VALUE; | |
4750 | ||
d62a17ae | 4751 | if (holdtime < 3 && holdtime != 0) |
4752 | return BGP_ERR_INVALID_VALUE; | |
4753 | ||
b90a8e13 PM |
4754 | /* Set flag and configuration on peer. */ |
4755 | peer_flag_set(peer, PEER_FLAG_TIMER); | |
d62a17ae | 4756 | peer->holdtime = holdtime; |
4757 | peer->keepalive = (keepalive < holdtime / 3 ? keepalive : holdtime / 3); | |
4758 | ||
b90a8e13 PM |
4759 | /* Skip peer-group mechanics for regular peers. */ |
4760 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
4761 | return 0; | |
d25e4efc | 4762 | |
b90a8e13 PM |
4763 | /* |
4764 | * Set flag and configuration on all peer-group members, unless they are | |
4765 | * explicitely overriding peer-group configuration. | |
4766 | */ | |
4767 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4768 | /* Skip peers with overridden configuration. */ | |
4769 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_TIMER)) | |
4770 | continue; | |
d25e4efc | 4771 | |
b90a8e13 PM |
4772 | /* Set flag and configuration on peer-group member. */ |
4773 | SET_FLAG(member->flags, PEER_FLAG_TIMER); | |
4774 | PEER_ATTR_INHERIT(peer, peer->group, holdtime); | |
4775 | PEER_ATTR_INHERIT(peer, peer->group, keepalive); | |
d62a17ae | 4776 | } |
d25e4efc | 4777 | |
d62a17ae | 4778 | return 0; |
4779 | } | |
4780 | ||
4781 | int peer_timers_unset(struct peer *peer) | |
4782 | { | |
b90a8e13 | 4783 | struct peer *member; |
d62a17ae | 4784 | struct listnode *node, *nnode; |
4785 | ||
b90a8e13 PM |
4786 | /* Inherit configuration from peer-group if peer is member. */ |
4787 | if (peer_group_active(peer)) { | |
4788 | peer_flag_inherit(peer, PEER_FLAG_TIMER); | |
4789 | PEER_ATTR_INHERIT(peer, peer->group, holdtime); | |
4790 | PEER_ATTR_INHERIT(peer, peer->group, keepalive); | |
4791 | } else { | |
4792 | /* Otherwise remove flag and configuration from peer. */ | |
4793 | peer_flag_unset(peer, PEER_FLAG_TIMER); | |
d25e4efc | 4794 | peer->holdtime = 0; |
b90a8e13 PM |
4795 | peer->keepalive = 0; |
4796 | } | |
d25e4efc | 4797 | |
b90a8e13 PM |
4798 | /* Skip peer-group mechanics for regular peers. */ |
4799 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
4800 | return 0; | |
4801 | ||
4802 | /* | |
4803 | * Remove flag and configuration from all peer-group members, unless | |
4804 | * they are explicitely overriding peer-group configuration. | |
4805 | */ | |
4806 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4807 | /* Skip peers with overridden configuration. */ | |
4808 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_TIMER)) | |
4809 | continue; | |
d25e4efc | 4810 | |
b90a8e13 PM |
4811 | /* Remove flag and configuration on peer-group member. */ |
4812 | UNSET_FLAG(member->flags, PEER_FLAG_TIMER); | |
4813 | member->holdtime = 0; | |
4814 | member->keepalive = 0; | |
d62a17ae | 4815 | } |
4816 | ||
4817 | return 0; | |
4818 | } | |
4819 | ||
d7c0a89a | 4820 | int peer_timers_connect_set(struct peer *peer, uint32_t connect) |
d62a17ae | 4821 | { |
b90a8e13 | 4822 | struct peer *member; |
d62a17ae | 4823 | struct listnode *node, *nnode; |
4824 | ||
4825 | if (connect > 65535) | |
4826 | return BGP_ERR_INVALID_VALUE; | |
4827 | ||
b90a8e13 PM |
4828 | /* Set flag and configuration on peer. */ |
4829 | peer_flag_set(peer, PEER_FLAG_TIMER_CONNECT); | |
d62a17ae | 4830 | peer->connect = connect; |
d62a17ae | 4831 | peer->v_connect = connect; |
4832 | ||
b90a8e13 | 4833 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 4834 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) |
4835 | return 0; | |
4836 | ||
b90a8e13 PM |
4837 | /* |
4838 | * Set flag and configuration on all peer-group members, unless they are | |
4839 | * explicitely overriding peer-group configuration. | |
4840 | */ | |
4841 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4842 | /* Skip peers with overridden configuration. */ | |
4843 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_TIMER_CONNECT)) | |
4844 | continue; | |
4845 | ||
4846 | /* Set flag and configuration on peer-group member. */ | |
4847 | SET_FLAG(member->flags, PEER_FLAG_TIMER_CONNECT); | |
4848 | member->connect = connect; | |
4849 | member->v_connect = connect; | |
d62a17ae | 4850 | } |
b90a8e13 | 4851 | |
d62a17ae | 4852 | return 0; |
4853 | } | |
4854 | ||
4855 | int peer_timers_connect_unset(struct peer *peer) | |
4856 | { | |
b90a8e13 | 4857 | struct peer *member; |
d62a17ae | 4858 | struct listnode *node, *nnode; |
4859 | ||
b90a8e13 PM |
4860 | /* Inherit configuration from peer-group if peer is member. */ |
4861 | if (peer_group_active(peer)) { | |
4862 | peer_flag_inherit(peer, PEER_FLAG_TIMER_CONNECT); | |
4863 | PEER_ATTR_INHERIT(peer, peer->group, connect); | |
4864 | } else { | |
4865 | /* Otherwise remove flag and configuration from peer. */ | |
4866 | peer_flag_unset(peer, PEER_FLAG_TIMER_CONNECT); | |
4867 | peer->connect = 0; | |
4868 | } | |
d62a17ae | 4869 | |
b90a8e13 PM |
4870 | /* Set timer with fallback to default value. */ |
4871 | if (peer->connect) | |
4872 | peer->v_connect = peer->connect; | |
4873 | else | |
4874 | peer->v_connect = BGP_DEFAULT_CONNECT_RETRY; | |
d62a17ae | 4875 | |
b90a8e13 | 4876 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 4877 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) |
4878 | return 0; | |
4879 | ||
b90a8e13 PM |
4880 | /* |
4881 | * Remove flag and configuration from all peer-group members, unless | |
4882 | * they are explicitely overriding peer-group configuration. | |
4883 | */ | |
4884 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4885 | /* Skip peers with overridden configuration. */ | |
4886 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_TIMER_CONNECT)) | |
4887 | continue; | |
4888 | ||
4889 | /* Remove flag and configuration on peer-group member. */ | |
4890 | UNSET_FLAG(member->flags, PEER_FLAG_TIMER_CONNECT); | |
4891 | member->connect = 0; | |
4892 | member->v_connect = BGP_DEFAULT_CONNECT_RETRY; | |
d62a17ae | 4893 | } |
b90a8e13 | 4894 | |
d62a17ae | 4895 | return 0; |
4896 | } | |
4897 | ||
d7c0a89a | 4898 | int peer_advertise_interval_set(struct peer *peer, uint32_t routeadv) |
d62a17ae | 4899 | { |
b90a8e13 | 4900 | struct peer *member; |
d62a17ae | 4901 | struct listnode *node, *nnode; |
4902 | ||
4903 | if (routeadv > 600) | |
4904 | return BGP_ERR_INVALID_VALUE; | |
4905 | ||
b90a8e13 PM |
4906 | /* Set flag and configuration on peer. */ |
4907 | peer_flag_set(peer, PEER_FLAG_ROUTEADV); | |
d62a17ae | 4908 | peer->routeadv = routeadv; |
4909 | peer->v_routeadv = routeadv; | |
4910 | ||
b90a8e13 | 4911 | /* Check if handling a regular peer. */ |
d62a17ae | 4912 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
b90a8e13 | 4913 | /* Update peer route announcements. */ |
d62a17ae | 4914 | update_group_adjust_peer_afs(peer); |
4915 | if (peer->status == Established) | |
4916 | bgp_announce_route_all(peer); | |
b90a8e13 PM |
4917 | |
4918 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 4919 | return 0; |
4920 | } | |
4921 | ||
b90a8e13 PM |
4922 | /* |
4923 | * Set flag and configuration on all peer-group members, unless they are | |
4924 | * explicitely overriding peer-group configuration. | |
4925 | */ | |
4926 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4927 | /* Skip peers with overridden configuration. */ | |
4928 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_ROUTEADV)) | |
4929 | continue; | |
4930 | ||
4931 | /* Set flag and configuration on peer-group member. */ | |
4932 | SET_FLAG(member->flags, PEER_FLAG_ROUTEADV); | |
4933 | member->routeadv = routeadv; | |
4934 | member->v_routeadv = routeadv; | |
4935 | ||
4936 | /* Update peer route announcements. */ | |
4937 | update_group_adjust_peer_afs(member); | |
4938 | if (member->status == Established) | |
4939 | bgp_announce_route_all(member); | |
d62a17ae | 4940 | } |
4941 | ||
4942 | return 0; | |
4943 | } | |
4944 | ||
4945 | int peer_advertise_interval_unset(struct peer *peer) | |
4946 | { | |
b90a8e13 | 4947 | struct peer *member; |
d62a17ae | 4948 | struct listnode *node, *nnode; |
4949 | ||
b90a8e13 PM |
4950 | /* Inherit configuration from peer-group if peer is member. */ |
4951 | if (peer_group_active(peer)) { | |
4952 | peer_flag_inherit(peer, PEER_FLAG_ROUTEADV); | |
4953 | PEER_ATTR_INHERIT(peer, peer->group, routeadv); | |
4954 | } else { | |
4955 | /* Otherwise remove flag and configuration from peer. */ | |
4956 | peer_flag_unset(peer, PEER_FLAG_ROUTEADV); | |
4957 | peer->routeadv = 0; | |
4958 | } | |
d62a17ae | 4959 | |
b90a8e13 PM |
4960 | /* Set timer with fallback to default value. */ |
4961 | if (peer->routeadv) | |
4962 | peer->v_routeadv = peer->routeadv; | |
d62a17ae | 4963 | else |
b90a8e13 PM |
4964 | peer->v_routeadv = (peer->sort == BGP_PEER_IBGP) |
4965 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
4966 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 4967 | |
b90a8e13 | 4968 | /* Check if handling a regular peer. */ |
d62a17ae | 4969 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
b90a8e13 | 4970 | /* Update peer route announcements. */ |
d62a17ae | 4971 | update_group_adjust_peer_afs(peer); |
4972 | if (peer->status == Established) | |
4973 | bgp_announce_route_all(peer); | |
b90a8e13 PM |
4974 | |
4975 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 4976 | return 0; |
4977 | } | |
4978 | ||
b90a8e13 PM |
4979 | /* |
4980 | * Remove flag and configuration from all peer-group members, unless | |
4981 | * they are explicitely overriding peer-group configuration. | |
4982 | */ | |
4983 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4984 | /* Skip peers with overridden configuration. */ | |
4985 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_ROUTEADV)) | |
4986 | continue; | |
d62a17ae | 4987 | |
b90a8e13 PM |
4988 | /* Remove flag and configuration on peer-group member. */ |
4989 | UNSET_FLAG(member->flags, PEER_FLAG_ROUTEADV); | |
4990 | member->routeadv = 0; | |
4991 | member->v_routeadv = (member->sort == BGP_PEER_IBGP) | |
4992 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
4993 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 4994 | |
b90a8e13 PM |
4995 | /* Update peer route announcements. */ |
4996 | update_group_adjust_peer_afs(member); | |
4997 | if (member->status == Established) | |
4998 | bgp_announce_route_all(member); | |
d62a17ae | 4999 | } |
5000 | ||
5001 | return 0; | |
5002 | } | |
5003 | ||
5004 | /* neighbor interface */ | |
5005 | void peer_interface_set(struct peer *peer, const char *str) | |
5006 | { | |
5007 | if (peer->ifname) | |
5008 | XFREE(MTYPE_BGP_PEER_IFNAME, peer->ifname); | |
5009 | peer->ifname = XSTRDUP(MTYPE_BGP_PEER_IFNAME, str); | |
5010 | } | |
5011 | ||
5012 | void peer_interface_unset(struct peer *peer) | |
5013 | { | |
5014 | if (peer->ifname) | |
5015 | XFREE(MTYPE_BGP_PEER_IFNAME, peer->ifname); | |
5016 | peer->ifname = NULL; | |
5017 | } | |
5018 | ||
5019 | /* Allow-as in. */ | |
5020 | int peer_allowas_in_set(struct peer *peer, afi_t afi, safi_t safi, | |
5021 | int allow_num, int origin) | |
5022 | { | |
598ce6bd | 5023 | struct peer *member; |
d62a17ae | 5024 | struct listnode *node, *nnode; |
5025 | ||
598ce6bd PM |
5026 | if (!origin && (allow_num < 1 || allow_num > 10)) |
5027 | return BGP_ERR_INVALID_VALUE; | |
5028 | ||
5029 | /* Set flag and configuration on peer. */ | |
5030 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_ALLOWAS_IN); | |
d62a17ae | 5031 | if (origin) { |
598ce6bd | 5032 | if (peer->allowas_in[afi][safi] != 0 |
d62a17ae | 5033 | || !CHECK_FLAG(peer->af_flags[afi][safi], |
5034 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { | |
d62a17ae | 5035 | peer_af_flag_set(peer, afi, safi, |
5036 | PEER_FLAG_ALLOWAS_IN_ORIGIN); | |
598ce6bd | 5037 | peer->allowas_in[afi][safi] = 0; |
d62a17ae | 5038 | peer_on_policy_change(peer, afi, safi, 0); |
5039 | } | |
d62a17ae | 5040 | } else { |
d62a17ae | 5041 | if (peer->allowas_in[afi][safi] != allow_num |
5042 | || CHECK_FLAG(peer->af_flags[afi][safi], | |
5043 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { | |
598ce6bd | 5044 | |
d62a17ae | 5045 | peer_af_flag_unset(peer, afi, safi, |
5046 | PEER_FLAG_ALLOWAS_IN_ORIGIN); | |
598ce6bd | 5047 | peer->allowas_in[afi][safi] = allow_num; |
d62a17ae | 5048 | peer_on_policy_change(peer, afi, safi, 0); |
5049 | } | |
598ce6bd | 5050 | } |
d62a17ae | 5051 | |
598ce6bd PM |
5052 | /* Skip peer-group mechanics for regular peers. */ |
5053 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
5054 | return 0; | |
d62a17ae | 5055 | |
598ce6bd PM |
5056 | /* |
5057 | * Set flag and configuration on all peer-group members, unless | |
5058 | * they are explicitely overriding peer-group configuration. | |
5059 | */ | |
5060 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5061 | /* Skip peers with overridden configuration. */ | |
5062 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
246bb5f0 | 5063 | PEER_FLAG_ALLOWAS_IN)) |
598ce6bd PM |
5064 | continue; |
5065 | ||
5066 | /* Set flag and configuration on peer-group member. */ | |
5067 | SET_FLAG(member->af_flags[afi][safi], PEER_FLAG_ALLOWAS_IN); | |
5068 | if (origin) { | |
5069 | if (member->allowas_in[afi][safi] != 0 | |
5070 | || !CHECK_FLAG(member->af_flags[afi][safi], | |
cf9ac8bf | 5071 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { |
598ce6bd | 5072 | SET_FLAG(member->af_flags[afi][safi], |
cf9ac8bf | 5073 | PEER_FLAG_ALLOWAS_IN_ORIGIN); |
598ce6bd PM |
5074 | member->allowas_in[afi][safi] = 0; |
5075 | peer_on_policy_change(peer, afi, safi, 0); | |
5076 | } | |
5077 | } else { | |
5078 | if (member->allowas_in[afi][safi] != allow_num | |
5079 | || CHECK_FLAG(member->af_flags[afi][safi], | |
d62a17ae | 5080 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { |
598ce6bd PM |
5081 | UNSET_FLAG(member->af_flags[afi][safi], |
5082 | PEER_FLAG_ALLOWAS_IN_ORIGIN); | |
5083 | member->allowas_in[afi][safi] = allow_num; | |
d62a17ae | 5084 | peer_on_policy_change(peer, afi, safi, 0); |
5085 | } | |
5086 | } | |
5087 | } | |
5088 | ||
5089 | return 0; | |
5090 | } | |
5091 | ||
5092 | int peer_allowas_in_unset(struct peer *peer, afi_t afi, safi_t safi) | |
5093 | { | |
598ce6bd | 5094 | struct peer *member; |
d62a17ae | 5095 | struct listnode *node, *nnode; |
5096 | ||
598ce6bd PM |
5097 | /* Skip peer if flag is already disabled. */ |
5098 | if (!CHECK_FLAG(peer->af_flags[afi][safi], PEER_FLAG_ALLOWAS_IN)) | |
5099 | return 0; | |
d62a17ae | 5100 | |
598ce6bd PM |
5101 | /* Inherit configuration from peer-group if peer is member. */ |
5102 | if (peer_group_active(peer)) { | |
5103 | peer_af_flag_inherit(peer, afi, safi, PEER_FLAG_ALLOWAS_IN); | |
5104 | peer_af_flag_inherit(peer, afi, safi, | |
cf9ac8bf | 5105 | PEER_FLAG_ALLOWAS_IN_ORIGIN); |
e7103a96 | 5106 | PEER_ATTR_INHERIT(peer, peer->group, allowas_in[afi][safi]); |
d62a17ae | 5107 | peer_on_policy_change(peer, afi, safi, 0); |
598ce6bd PM |
5108 | |
5109 | return 0; | |
5110 | } | |
5111 | ||
5112 | /* Remove flag and configuration from peer. */ | |
5113 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_ALLOWAS_IN); | |
5114 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_ALLOWAS_IN_ORIGIN); | |
5115 | peer->allowas_in[afi][safi] = 0; | |
5116 | peer_on_policy_change(peer, afi, safi, 0); | |
5117 | ||
5118 | /* Skip peer-group mechanics if handling a regular peer. */ | |
5119 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
5120 | return 0; | |
5121 | ||
5122 | /* | |
5123 | * Remove flags and configuration from all peer-group members, unless | |
5124 | * they are explicitely overriding peer-group configuration. | |
5125 | */ | |
5126 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5127 | /* Skip peers with overridden configuration. */ | |
5128 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
cf9ac8bf | 5129 | PEER_FLAG_ALLOWAS_IN)) |
598ce6bd PM |
5130 | continue; |
5131 | ||
5132 | /* Skip peers where flag is already disabled. */ | |
5133 | if (!CHECK_FLAG(member->af_flags[afi][safi], | |
cf9ac8bf | 5134 | PEER_FLAG_ALLOWAS_IN)) |
598ce6bd PM |
5135 | continue; |
5136 | ||
5137 | /* Remove flags and configuration on peer-group member. */ | |
cf9ac8bf | 5138 | UNSET_FLAG(member->af_flags[afi][safi], PEER_FLAG_ALLOWAS_IN); |
598ce6bd | 5139 | UNSET_FLAG(member->af_flags[afi][safi], |
cf9ac8bf | 5140 | PEER_FLAG_ALLOWAS_IN_ORIGIN); |
598ce6bd PM |
5141 | member->allowas_in[afi][safi] = 0; |
5142 | peer_on_policy_change(member, afi, safi, 0); | |
d62a17ae | 5143 | } |
5144 | ||
5145 | return 0; | |
5146 | } | |
5147 | ||
5148 | int peer_local_as_set(struct peer *peer, as_t as, int no_prepend, | |
5149 | int replace_as) | |
5150 | { | |
a14810f4 | 5151 | bool old_no_prepend, old_replace_as; |
d62a17ae | 5152 | struct bgp *bgp = peer->bgp; |
a14810f4 | 5153 | struct peer *member; |
d62a17ae | 5154 | struct listnode *node, *nnode; |
5155 | ||
5156 | if (peer_sort(peer) != BGP_PEER_EBGP | |
5157 | && peer_sort(peer) != BGP_PEER_INTERNAL) | |
5158 | return BGP_ERR_LOCAL_AS_ALLOWED_ONLY_FOR_EBGP; | |
5159 | ||
5160 | if (bgp->as == as) | |
5161 | return BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS; | |
5162 | ||
5163 | if (peer->as == as) | |
5164 | return BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS_REMOTE_AS; | |
5165 | ||
a14810f4 PM |
5166 | /* Save previous flag states. */ |
5167 | old_no_prepend = | |
5168 | !!CHECK_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5169 | old_replace_as = | |
5170 | !!CHECK_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
d62a17ae | 5171 | |
a14810f4 PM |
5172 | /* Set flag and configuration on peer. */ |
5173 | peer_flag_set(peer, PEER_FLAG_LOCAL_AS); | |
5174 | peer_flag_modify(peer, PEER_FLAG_LOCAL_AS_NO_PREPEND, no_prepend); | |
5175 | peer_flag_modify(peer, PEER_FLAG_LOCAL_AS_REPLACE_AS, replace_as); | |
d62a17ae | 5176 | |
a14810f4 PM |
5177 | if (peer->change_local_as == as && old_no_prepend == no_prepend |
5178 | && old_replace_as == replace_as) | |
5179 | return 0; | |
5180 | peer->change_local_as = as; | |
d62a17ae | 5181 | |
a14810f4 | 5182 | /* Check if handling a regular peer. */ |
d62a17ae | 5183 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 5184 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 5185 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
5186 | peer->last_reset = PEER_DOWN_LOCAL_AS_CHANGE; | |
5187 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5188 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5189 | } else | |
5190 | bgp_session_reset(peer); | |
a14810f4 PM |
5191 | |
5192 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5193 | return 0; |
5194 | } | |
5195 | ||
a14810f4 PM |
5196 | /* |
5197 | * Set flag and configuration on all peer-group members, unless they are | |
5198 | * explicitely overriding peer-group configuration. | |
5199 | */ | |
5200 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5201 | /* Skip peers with overridden configuration. */ | |
5202 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_LOCAL_AS)) | |
5203 | continue; | |
d62a17ae | 5204 | |
a14810f4 PM |
5205 | /* Skip peers with the same configuration. */ |
5206 | old_no_prepend = CHECK_FLAG(member->flags, | |
5207 | PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5208 | old_replace_as = CHECK_FLAG(member->flags, | |
5209 | PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
5210 | if (member->change_local_as == as | |
5211 | && CHECK_FLAG(member->flags, PEER_FLAG_LOCAL_AS) | |
5212 | && old_no_prepend == no_prepend | |
5213 | && old_replace_as == replace_as) | |
5214 | continue; | |
d62a17ae | 5215 | |
a14810f4 PM |
5216 | /* Set flag and configuration on peer-group member. */ |
5217 | SET_FLAG(member->flags, PEER_FLAG_LOCAL_AS); | |
5218 | COND_FLAG(member->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND, | |
5219 | no_prepend); | |
5220 | COND_FLAG(member->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS, | |
5221 | replace_as); | |
5222 | member->change_local_as = as; | |
5223 | ||
5224 | /* Send notification or stop peer depending on state. */ | |
5225 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) { | |
5226 | member->last_reset = PEER_DOWN_LOCAL_AS_CHANGE; | |
5227 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 5228 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
5229 | } else | |
a14810f4 | 5230 | BGP_EVENT_ADD(member, BGP_Stop); |
d62a17ae | 5231 | } |
5232 | ||
5233 | return 0; | |
5234 | } | |
5235 | ||
5236 | int peer_local_as_unset(struct peer *peer) | |
5237 | { | |
a14810f4 | 5238 | struct peer *member; |
d62a17ae | 5239 | struct listnode *node, *nnode; |
5240 | ||
a14810f4 | 5241 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_LOCAL_AS)) |
d62a17ae | 5242 | return 0; |
5243 | ||
a14810f4 PM |
5244 | /* Inherit configuration from peer-group if peer is member. */ |
5245 | if (peer_group_active(peer)) { | |
5246 | peer_flag_inherit(peer, PEER_FLAG_LOCAL_AS); | |
5247 | peer_flag_inherit(peer, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5248 | peer_flag_inherit(peer, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
5249 | PEER_ATTR_INHERIT(peer, peer->group, change_local_as); | |
5250 | } else { | |
5251 | /* Otherwise remove flag and configuration from peer. */ | |
5252 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS); | |
5253 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5254 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
5255 | peer->change_local_as = 0; | |
5256 | } | |
d62a17ae | 5257 | |
a14810f4 | 5258 | /* Check if handling a regular peer. */ |
d62a17ae | 5259 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 5260 | /* Send notification or stop peer depending on state. */ |
d62a17ae | 5261 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
5262 | peer->last_reset = PEER_DOWN_LOCAL_AS_CHANGE; | |
5263 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5264 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5265 | } else | |
5266 | BGP_EVENT_ADD(peer, BGP_Stop); | |
5267 | ||
a14810f4 | 5268 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 5269 | return 0; |
5270 | } | |
5271 | ||
a14810f4 PM |
5272 | /* |
5273 | * Remove flag and configuration from all peer-group members, unless | |
5274 | * they are explicitely overriding peer-group configuration. | |
5275 | */ | |
5276 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5277 | /* Skip peers with overridden configuration. */ | |
5278 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_LOCAL_AS)) | |
5279 | continue; | |
d62a17ae | 5280 | |
a14810f4 PM |
5281 | /* Remove flag and configuration on peer-group member. */ |
5282 | UNSET_FLAG(member->flags, PEER_FLAG_LOCAL_AS); | |
5283 | UNSET_FLAG(member->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5284 | UNSET_FLAG(member->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
5285 | member->change_local_as = 0; | |
5286 | ||
5287 | /* Send notification or stop peer depending on state. */ | |
5288 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) { | |
5289 | member->last_reset = PEER_DOWN_LOCAL_AS_CHANGE; | |
5290 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 5291 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
5292 | } else | |
a14810f4 | 5293 | bgp_session_reset(member); |
d62a17ae | 5294 | } |
a14810f4 | 5295 | |
d62a17ae | 5296 | return 0; |
5297 | } | |
5298 | ||
5299 | /* Set password for authenticating with the peer. */ | |
5300 | int peer_password_set(struct peer *peer, const char *password) | |
5301 | { | |
a14810f4 PM |
5302 | struct peer *member; |
5303 | struct listnode *node, *nnode; | |
d62a17ae | 5304 | int len = password ? strlen(password) : 0; |
5305 | int ret = BGP_SUCCESS; | |
5306 | ||
5307 | if ((len < PEER_PASSWORD_MINLEN) || (len > PEER_PASSWORD_MAXLEN)) | |
5308 | return BGP_ERR_INVALID_VALUE; | |
5309 | ||
a14810f4 PM |
5310 | /* Set flag and configuration on peer. */ |
5311 | peer_flag_set(peer, PEER_FLAG_PASSWORD); | |
5312 | if (peer->password && strcmp(peer->password, password) == 0) | |
d62a17ae | 5313 | return 0; |
a14810f4 | 5314 | XFREE(MTYPE_PEER_PASSWORD, peer->password); |
d62a17ae | 5315 | peer->password = XSTRDUP(MTYPE_PEER_PASSWORD, password); |
5316 | ||
a14810f4 | 5317 | /* Check if handling a regular peer. */ |
d62a17ae | 5318 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 5319 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 5320 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
5321 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5322 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5323 | else | |
5324 | bgp_session_reset(peer); | |
5325 | ||
a14810f4 PM |
5326 | /* |
5327 | * Attempt to install password on socket and skip peer-group | |
5328 | * mechanics. | |
5329 | */ | |
d62a17ae | 5330 | if (BGP_PEER_SU_UNSPEC(peer)) |
5331 | return BGP_SUCCESS; | |
d62a17ae | 5332 | return (bgp_md5_set(peer) >= 0) ? BGP_SUCCESS |
5333 | : BGP_ERR_TCPSIG_FAILED; | |
5334 | } | |
5335 | ||
a14810f4 PM |
5336 | /* |
5337 | * Set flag and configuration on all peer-group members, unless they are | |
5338 | * explicitely overriding peer-group configuration. | |
5339 | */ | |
5340 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5341 | /* Skip peers with overridden configuration. */ | |
5342 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_PASSWORD)) | |
d62a17ae | 5343 | continue; |
5344 | ||
a14810f4 PM |
5345 | /* Skip peers with the same password. */ |
5346 | if (member->password && strcmp(member->password, password) == 0) | |
5347 | continue; | |
d62a17ae | 5348 | |
a14810f4 PM |
5349 | /* Set flag and configuration on peer-group member. */ |
5350 | SET_FLAG(member->flags, PEER_FLAG_PASSWORD); | |
5351 | if (member->password) | |
5352 | XFREE(MTYPE_PEER_PASSWORD, member->password); | |
5353 | member->password = XSTRDUP(MTYPE_PEER_PASSWORD, password); | |
5354 | ||
5355 | /* Send notification or reset peer depending on state. */ | |
5356 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) | |
5357 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 5358 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
5359 | else | |
a14810f4 | 5360 | bgp_session_reset(member); |
d62a17ae | 5361 | |
a14810f4 PM |
5362 | /* Attempt to install password on socket. */ |
5363 | if (!BGP_PEER_SU_UNSPEC(member) && bgp_md5_set(member) < 0) | |
5364 | ret = BGP_ERR_TCPSIG_FAILED; | |
d62a17ae | 5365 | } |
5366 | ||
5367 | return ret; | |
5368 | } | |
5369 | ||
5370 | int peer_password_unset(struct peer *peer) | |
5371 | { | |
a14810f4 PM |
5372 | struct peer *member; |
5373 | struct listnode *node, *nnode; | |
d62a17ae | 5374 | |
a14810f4 | 5375 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_PASSWORD)) |
d62a17ae | 5376 | return 0; |
5377 | ||
a14810f4 PM |
5378 | /* Inherit configuration from peer-group if peer is member. */ |
5379 | if (peer_group_active(peer)) { | |
5380 | peer_flag_inherit(peer, PEER_FLAG_PASSWORD); | |
5381 | PEER_STR_ATTR_INHERIT(peer, peer->group, password, | |
5382 | MTYPE_PEER_PASSWORD); | |
5383 | } else { | |
5384 | /* Otherwise remove flag and configuration from peer. */ | |
5385 | peer_flag_unset(peer, PEER_FLAG_PASSWORD); | |
5386 | XFREE(MTYPE_PEER_PASSWORD, peer->password); | |
5387 | } | |
5388 | ||
5389 | /* Check if handling a regular peer. */ | |
d62a17ae | 5390 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 5391 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 5392 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
5393 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5394 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5395 | else | |
5396 | bgp_session_reset(peer); | |
5397 | ||
a14810f4 | 5398 | /* Attempt to uninstall password on socket. */ |
d62a17ae | 5399 | if (!BGP_PEER_SU_UNSPEC(peer)) |
5400 | bgp_md5_unset(peer); | |
5401 | ||
a14810f4 | 5402 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 5403 | return 0; |
5404 | } | |
5405 | ||
a14810f4 PM |
5406 | /* |
5407 | * Remove flag and configuration from all peer-group members, unless | |
5408 | * they are explicitely overriding peer-group configuration. | |
5409 | */ | |
5410 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5411 | /* Skip peers with overridden configuration. */ | |
5412 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_PASSWORD)) | |
d62a17ae | 5413 | continue; |
5414 | ||
a14810f4 PM |
5415 | /* Remove flag and configuration on peer-group member. */ |
5416 | UNSET_FLAG(member->flags, PEER_FLAG_PASSWORD); | |
5417 | XFREE(MTYPE_PEER_PASSWORD, member->password); | |
5418 | ||
5419 | /* Send notification or reset peer depending on state. */ | |
5420 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) | |
5421 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 5422 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
5423 | else | |
a14810f4 | 5424 | bgp_session_reset(member); |
d62a17ae | 5425 | |
a14810f4 PM |
5426 | /* Attempt to uninstall password on socket. */ |
5427 | if (!BGP_PEER_SU_UNSPEC(member)) | |
5428 | bgp_md5_unset(member); | |
d62a17ae | 5429 | } |
5430 | ||
5431 | return 0; | |
5432 | } | |
6b0655a2 | 5433 | |
3f9c7369 | 5434 | |
718e3744 | 5435 | /* Set distribute list to the peer. */ |
d62a17ae | 5436 | int peer_distribute_set(struct peer *peer, afi_t afi, safi_t safi, int direct, |
5437 | const char *name) | |
5438 | { | |
70ee29b4 | 5439 | struct peer *member; |
d62a17ae | 5440 | struct bgp_filter *filter; |
d62a17ae | 5441 | struct listnode *node, *nnode; |
5442 | ||
5443 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5444 | return BGP_ERR_INVALID_VALUE; | |
5445 | ||
70ee29b4 | 5446 | /* Set configuration on peer. */ |
d62a17ae | 5447 | filter = &peer->filter[afi][safi]; |
d62a17ae | 5448 | if (filter->plist[direct].name) |
5449 | return BGP_ERR_PEER_FILTER_CONFLICT; | |
d62a17ae | 5450 | if (filter->dlist[direct].name) |
5451 | XFREE(MTYPE_BGP_FILTER_NAME, filter->dlist[direct].name); | |
5452 | filter->dlist[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5453 | filter->dlist[direct].alist = access_list_lookup(afi, name); | |
5454 | ||
70ee29b4 | 5455 | /* Check if handling a regular peer. */ |
d62a17ae | 5456 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
5457 | /* Set override-flag and process peer route updates. */ |
5458 | SET_FLAG(peer->filter_override[afi][safi][direct], | |
5459 | PEER_FT_DISTRIBUTE_LIST); | |
d62a17ae | 5460 | peer_on_policy_change(peer, afi, safi, |
5461 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
5462 | |
5463 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5464 | return 0; |
5465 | } | |
5466 | ||
70ee29b4 PM |
5467 | /* |
5468 | * Set configuration on all peer-group members, un less they are | |
5469 | * explicitely overriding peer-group configuration. | |
5470 | */ | |
5471 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5472 | /* Skip peers with overridden configuration. */ | |
5473 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
5474 | PEER_FT_DISTRIBUTE_LIST)) | |
5475 | continue; | |
d62a17ae | 5476 | |
70ee29b4 PM |
5477 | /* Set configuration on peer-group member. */ |
5478 | filter = &member->filter[afi][safi]; | |
d62a17ae | 5479 | if (filter->dlist[direct].name) |
5480 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5481 | filter->dlist[direct].name); | |
5482 | filter->dlist[direct].name = | |
5483 | XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5484 | filter->dlist[direct].alist = access_list_lookup(afi, name); | |
70ee29b4 PM |
5485 | |
5486 | /* Process peer route updates. */ | |
5487 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 5488 | (direct == FILTER_OUT) ? 1 : 0); |
5489 | } | |
5490 | ||
5491 | return 0; | |
5492 | } | |
5493 | ||
5494 | int peer_distribute_unset(struct peer *peer, afi_t afi, safi_t safi, int direct) | |
5495 | { | |
70ee29b4 | 5496 | struct peer *member; |
d62a17ae | 5497 | struct bgp_filter *filter; |
d62a17ae | 5498 | struct listnode *node, *nnode; |
5499 | ||
5500 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5501 | return BGP_ERR_INVALID_VALUE; | |
5502 | ||
70ee29b4 PM |
5503 | /* Unset override-flag unconditionally. */ |
5504 | UNSET_FLAG(peer->filter_override[afi][safi][direct], | |
5505 | PEER_FT_DISTRIBUTE_LIST); | |
d62a17ae | 5506 | |
70ee29b4 | 5507 | /* Inherit configuration from peer-group if peer is member. */ |
d62a17ae | 5508 | if (peer_group_active(peer)) { |
e7103a96 PM |
5509 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
5510 | filter[afi][safi].dlist[direct].name, | |
5511 | MTYPE_BGP_FILTER_NAME); | |
5512 | PEER_ATTR_INHERIT(peer, peer->group, | |
5513 | filter[afi][safi].dlist[direct].alist); | |
70ee29b4 PM |
5514 | } else { |
5515 | /* Otherwise remove configuration from peer. */ | |
5516 | filter = &peer->filter[afi][safi]; | |
5517 | if (filter->dlist[direct].name) | |
5518 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5519 | filter->dlist[direct].name); | |
5520 | filter->dlist[direct].name = NULL; | |
5521 | filter->dlist[direct].alist = NULL; | |
d62a17ae | 5522 | } |
5523 | ||
70ee29b4 | 5524 | /* Check if handling a regular peer. */ |
d62a17ae | 5525 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 5526 | /* Process peer route updates. */ |
d62a17ae | 5527 | peer_on_policy_change(peer, afi, safi, |
5528 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
5529 | |
5530 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5531 | return 0; |
5532 | } | |
5533 | ||
70ee29b4 PM |
5534 | /* |
5535 | * Remove configuration on all peer-group members, unless they are | |
5536 | * explicitely overriding peer-group configuration. | |
5537 | */ | |
5538 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5539 | /* Skip peers with overridden configuration. */ | |
5540 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
5541 | PEER_FT_DISTRIBUTE_LIST)) | |
5542 | continue; | |
d62a17ae | 5543 | |
70ee29b4 PM |
5544 | /* Remove configuration on peer-group member. */ |
5545 | filter = &member->filter[afi][safi]; | |
d62a17ae | 5546 | if (filter->dlist[direct].name) |
5547 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5548 | filter->dlist[direct].name); | |
5549 | filter->dlist[direct].name = NULL; | |
5550 | filter->dlist[direct].alist = NULL; | |
70ee29b4 PM |
5551 | |
5552 | /* Process peer route updates. */ | |
5553 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 5554 | (direct == FILTER_OUT) ? 1 : 0); |
5555 | } | |
5556 | ||
5557 | return 0; | |
5558 | } | |
5559 | ||
5560 | /* Update distribute list. */ | |
5561 | static void peer_distribute_update(struct access_list *access) | |
5562 | { | |
5563 | afi_t afi; | |
5564 | safi_t safi; | |
5565 | int direct; | |
5566 | struct listnode *mnode, *mnnode; | |
5567 | struct listnode *node, *nnode; | |
5568 | struct bgp *bgp; | |
5569 | struct peer *peer; | |
5570 | struct peer_group *group; | |
5571 | struct bgp_filter *filter; | |
5572 | ||
5573 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
5574 | if (access->name) | |
5575 | update_group_policy_update(bgp, BGP_POLICY_FILTER_LIST, | |
5576 | access->name, 0, 0); | |
5577 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
05c7a1cc QY |
5578 | FOREACH_AFI_SAFI (afi, safi) { |
5579 | filter = &peer->filter[afi][safi]; | |
5580 | ||
5581 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
5582 | direct++) { | |
5583 | if (filter->dlist[direct].name) | |
5584 | filter->dlist[direct] | |
5585 | .alist = access_list_lookup( | |
5586 | afi, | |
d62a17ae | 5587 | filter->dlist[direct] |
05c7a1cc QY |
5588 | .name); |
5589 | else | |
5590 | filter->dlist[direct].alist = | |
5591 | NULL; | |
d62a17ae | 5592 | } |
05c7a1cc | 5593 | } |
d62a17ae | 5594 | } |
5595 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
05c7a1cc QY |
5596 | FOREACH_AFI_SAFI (afi, safi) { |
5597 | filter = &group->conf->filter[afi][safi]; | |
5598 | ||
5599 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
5600 | direct++) { | |
5601 | if (filter->dlist[direct].name) | |
5602 | filter->dlist[direct] | |
5603 | .alist = access_list_lookup( | |
5604 | afi, | |
d62a17ae | 5605 | filter->dlist[direct] |
05c7a1cc QY |
5606 | .name); |
5607 | else | |
5608 | filter->dlist[direct].alist = | |
5609 | NULL; | |
d62a17ae | 5610 | } |
05c7a1cc | 5611 | } |
d62a17ae | 5612 | } |
5613 | #if ENABLE_BGP_VNC | |
5614 | vnc_prefix_list_update(bgp); | |
5615 | #endif | |
5616 | } | |
5617 | } | |
5618 | ||
5619 | /* Set prefix list to the peer. */ | |
5620 | int peer_prefix_list_set(struct peer *peer, afi_t afi, safi_t safi, int direct, | |
5621 | const char *name) | |
5622 | { | |
70ee29b4 | 5623 | struct peer *member; |
d62a17ae | 5624 | struct bgp_filter *filter; |
d62a17ae | 5625 | struct listnode *node, *nnode; |
5626 | ||
5627 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5628 | return BGP_ERR_INVALID_VALUE; | |
5629 | ||
70ee29b4 | 5630 | /* Set configuration on peer. */ |
d62a17ae | 5631 | filter = &peer->filter[afi][safi]; |
d62a17ae | 5632 | if (filter->dlist[direct].name) |
5633 | return BGP_ERR_PEER_FILTER_CONFLICT; | |
d62a17ae | 5634 | if (filter->plist[direct].name) |
5635 | XFREE(MTYPE_BGP_FILTER_NAME, filter->plist[direct].name); | |
5636 | filter->plist[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5637 | filter->plist[direct].plist = prefix_list_lookup(afi, name); | |
5638 | ||
70ee29b4 | 5639 | /* Check if handling a regular peer. */ |
d62a17ae | 5640 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
5641 | /* Set override-flag and process peer route updates. */ |
5642 | SET_FLAG(peer->filter_override[afi][safi][direct], | |
5643 | PEER_FT_PREFIX_LIST); | |
d62a17ae | 5644 | peer_on_policy_change(peer, afi, safi, |
5645 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
5646 | |
5647 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5648 | return 0; |
5649 | } | |
5650 | ||
70ee29b4 PM |
5651 | /* |
5652 | * Set configuration on all peer-group members, unless they are | |
5653 | * explicitely overriding peer-group configuration. | |
5654 | */ | |
5655 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5656 | /* Skip peers with overridden configuration. */ | |
5657 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
5658 | PEER_FT_PREFIX_LIST)) | |
5659 | continue; | |
d62a17ae | 5660 | |
70ee29b4 PM |
5661 | /* Set configuration on peer-group member. */ |
5662 | filter = &member->filter[afi][safi]; | |
d62a17ae | 5663 | if (filter->plist[direct].name) |
5664 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5665 | filter->plist[direct].name); | |
5666 | filter->plist[direct].name = | |
5667 | XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5668 | filter->plist[direct].plist = prefix_list_lookup(afi, name); | |
70ee29b4 PM |
5669 | |
5670 | /* Process peer route updates. */ | |
5671 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 5672 | (direct == FILTER_OUT) ? 1 : 0); |
5673 | } | |
70ee29b4 | 5674 | |
d62a17ae | 5675 | return 0; |
5676 | } | |
5677 | ||
5678 | int peer_prefix_list_unset(struct peer *peer, afi_t afi, safi_t safi, | |
5679 | int direct) | |
5680 | { | |
70ee29b4 | 5681 | struct peer *member; |
d62a17ae | 5682 | struct bgp_filter *filter; |
d62a17ae | 5683 | struct listnode *node, *nnode; |
5684 | ||
5685 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5686 | return BGP_ERR_INVALID_VALUE; | |
5687 | ||
70ee29b4 PM |
5688 | /* Unset override-flag unconditionally. */ |
5689 | UNSET_FLAG(peer->filter_override[afi][safi][direct], | |
5690 | PEER_FT_PREFIX_LIST); | |
d62a17ae | 5691 | |
70ee29b4 | 5692 | /* Inherit configuration from peer-group if peer is member. */ |
d62a17ae | 5693 | if (peer_group_active(peer)) { |
e7103a96 PM |
5694 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
5695 | filter[afi][safi].plist[direct].name, | |
5696 | MTYPE_BGP_FILTER_NAME); | |
5697 | PEER_ATTR_INHERIT(peer, peer->group, | |
5698 | filter[afi][safi].plist[direct].plist); | |
70ee29b4 PM |
5699 | } else { |
5700 | /* Otherwise remove configuration from peer. */ | |
5701 | filter = &peer->filter[afi][safi]; | |
5702 | if (filter->plist[direct].name) | |
5703 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5704 | filter->plist[direct].name); | |
5705 | filter->plist[direct].name = NULL; | |
5706 | filter->plist[direct].plist = NULL; | |
d62a17ae | 5707 | } |
5708 | ||
70ee29b4 | 5709 | /* Check if handling a regular peer. */ |
d62a17ae | 5710 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 5711 | /* Process peer route updates. */ |
d62a17ae | 5712 | peer_on_policy_change(peer, afi, safi, |
5713 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
5714 | |
5715 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5716 | return 0; |
5717 | } | |
5718 | ||
70ee29b4 PM |
5719 | /* |
5720 | * Remove configuration on all peer-group members, unless they are | |
5721 | * explicitely overriding peer-group configuration. | |
5722 | */ | |
5723 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5724 | /* Skip peers with overridden configuration. */ | |
5725 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
5726 | PEER_FT_PREFIX_LIST)) | |
5727 | continue; | |
d62a17ae | 5728 | |
70ee29b4 PM |
5729 | /* Remove configuration on peer-group member. */ |
5730 | filter = &member->filter[afi][safi]; | |
d62a17ae | 5731 | if (filter->plist[direct].name) |
5732 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5733 | filter->plist[direct].name); | |
5734 | filter->plist[direct].name = NULL; | |
5735 | filter->plist[direct].plist = NULL; | |
70ee29b4 PM |
5736 | |
5737 | /* Process peer route updates. */ | |
5738 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 5739 | (direct == FILTER_OUT) ? 1 : 0); |
5740 | } | |
5741 | ||
5742 | return 0; | |
5743 | } | |
5744 | ||
5745 | /* Update prefix-list list. */ | |
5746 | static void peer_prefix_list_update(struct prefix_list *plist) | |
5747 | { | |
5748 | struct listnode *mnode, *mnnode; | |
5749 | struct listnode *node, *nnode; | |
5750 | struct bgp *bgp; | |
5751 | struct peer *peer; | |
5752 | struct peer_group *group; | |
5753 | struct bgp_filter *filter; | |
5754 | afi_t afi; | |
5755 | safi_t safi; | |
5756 | int direct; | |
5757 | ||
5758 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
5759 | ||
5760 | /* | |
5761 | * Update the prefix-list on update groups. | |
5762 | */ | |
5763 | update_group_policy_update( | |
5764 | bgp, BGP_POLICY_PREFIX_LIST, | |
5765 | plist ? prefix_list_name(plist) : NULL, 0, 0); | |
5766 | ||
5767 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
05c7a1cc QY |
5768 | FOREACH_AFI_SAFI (afi, safi) { |
5769 | filter = &peer->filter[afi][safi]; | |
5770 | ||
5771 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
5772 | direct++) { | |
5773 | if (filter->plist[direct].name) | |
5774 | filter->plist[direct] | |
5775 | .plist = prefix_list_lookup( | |
5776 | afi, | |
d62a17ae | 5777 | filter->plist[direct] |
05c7a1cc QY |
5778 | .name); |
5779 | else | |
5780 | filter->plist[direct].plist = | |
5781 | NULL; | |
d62a17ae | 5782 | } |
05c7a1cc | 5783 | } |
d62a17ae | 5784 | } |
5785 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
05c7a1cc QY |
5786 | FOREACH_AFI_SAFI (afi, safi) { |
5787 | filter = &group->conf->filter[afi][safi]; | |
5788 | ||
5789 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
5790 | direct++) { | |
5791 | if (filter->plist[direct].name) | |
5792 | filter->plist[direct] | |
5793 | .plist = prefix_list_lookup( | |
5794 | afi, | |
d62a17ae | 5795 | filter->plist[direct] |
05c7a1cc QY |
5796 | .name); |
5797 | else | |
5798 | filter->plist[direct].plist = | |
5799 | NULL; | |
d62a17ae | 5800 | } |
05c7a1cc | 5801 | } |
d62a17ae | 5802 | } |
5803 | } | |
5804 | } | |
5805 | ||
5806 | int peer_aslist_set(struct peer *peer, afi_t afi, safi_t safi, int direct, | |
5807 | const char *name) | |
5808 | { | |
70ee29b4 | 5809 | struct peer *member; |
d62a17ae | 5810 | struct bgp_filter *filter; |
d62a17ae | 5811 | struct listnode *node, *nnode; |
5812 | ||
5813 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5814 | return BGP_ERR_INVALID_VALUE; | |
5815 | ||
70ee29b4 | 5816 | /* Set configuration on peer. */ |
d62a17ae | 5817 | filter = &peer->filter[afi][safi]; |
d62a17ae | 5818 | if (filter->aslist[direct].name) |
5819 | XFREE(MTYPE_BGP_FILTER_NAME, filter->aslist[direct].name); | |
5820 | filter->aslist[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5821 | filter->aslist[direct].aslist = as_list_lookup(name); | |
5822 | ||
70ee29b4 | 5823 | /* Check if handling a regular peer. */ |
d62a17ae | 5824 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
5825 | /* Set override-flag and process peer route updates. */ |
5826 | SET_FLAG(peer->filter_override[afi][safi][direct], | |
5827 | PEER_FT_FILTER_LIST); | |
d62a17ae | 5828 | peer_on_policy_change(peer, afi, safi, |
5829 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
5830 | |
5831 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5832 | return 0; |
5833 | } | |
5834 | ||
70ee29b4 PM |
5835 | /* |
5836 | * Set configuration on all peer-group members, unless they are | |
5837 | * explicitely overriding peer-group configuration. | |
5838 | */ | |
5839 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5840 | /* Skip peers with overridden configuration. */ | |
5841 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
5842 | PEER_FT_FILTER_LIST)) | |
5843 | continue; | |
d62a17ae | 5844 | |
70ee29b4 PM |
5845 | /* Set configuration on peer-group member. */ |
5846 | filter = &member->filter[afi][safi]; | |
d62a17ae | 5847 | if (filter->aslist[direct].name) |
5848 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5849 | filter->aslist[direct].name); | |
5850 | filter->aslist[direct].name = | |
5851 | XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5852 | filter->aslist[direct].aslist = as_list_lookup(name); | |
70ee29b4 PM |
5853 | |
5854 | /* Process peer route updates. */ | |
5855 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 5856 | (direct == FILTER_OUT) ? 1 : 0); |
5857 | } | |
70ee29b4 | 5858 | |
d62a17ae | 5859 | return 0; |
5860 | } | |
5861 | ||
5862 | int peer_aslist_unset(struct peer *peer, afi_t afi, safi_t safi, int direct) | |
5863 | { | |
70ee29b4 | 5864 | struct peer *member; |
d62a17ae | 5865 | struct bgp_filter *filter; |
d62a17ae | 5866 | struct listnode *node, *nnode; |
5867 | ||
5868 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5869 | return BGP_ERR_INVALID_VALUE; | |
5870 | ||
70ee29b4 PM |
5871 | /* Unset override-flag unconditionally. */ |
5872 | UNSET_FLAG(peer->filter_override[afi][safi][direct], | |
5873 | PEER_FT_FILTER_LIST); | |
d62a17ae | 5874 | |
70ee29b4 | 5875 | /* Inherit configuration from peer-group if peer is member. */ |
d62a17ae | 5876 | if (peer_group_active(peer)) { |
e7103a96 PM |
5877 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
5878 | filter[afi][safi].aslist[direct].name, | |
5879 | MTYPE_BGP_FILTER_NAME); | |
5880 | PEER_ATTR_INHERIT(peer, peer->group, | |
70ee29b4 PM |
5881 | filter[afi][safi].aslist[direct].aslist); |
5882 | } else { | |
5883 | /* Otherwise remove configuration from peer. */ | |
5884 | filter = &peer->filter[afi][safi]; | |
5885 | if (filter->aslist[direct].name) | |
5886 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5887 | filter->aslist[direct].name); | |
5888 | filter->aslist[direct].name = NULL; | |
5889 | filter->aslist[direct].aslist = NULL; | |
d62a17ae | 5890 | } |
5891 | ||
70ee29b4 | 5892 | /* Check if handling a regular peer. */ |
d62a17ae | 5893 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 5894 | /* Process peer route updates. */ |
d62a17ae | 5895 | peer_on_policy_change(peer, afi, safi, |
5896 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
5897 | |
5898 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5899 | return 0; |
5900 | } | |
5901 | ||
70ee29b4 PM |
5902 | /* |
5903 | * Remove configuration on all peer-group members, unless they are | |
5904 | * explicitely overriding peer-group configuration. | |
5905 | */ | |
5906 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5907 | /* Skip peers with overridden configuration. */ | |
5908 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
5909 | PEER_FT_FILTER_LIST)) | |
5910 | continue; | |
d62a17ae | 5911 | |
70ee29b4 PM |
5912 | /* Remove configuration on peer-group member. */ |
5913 | filter = &member->filter[afi][safi]; | |
d62a17ae | 5914 | if (filter->aslist[direct].name) |
5915 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5916 | filter->aslist[direct].name); | |
5917 | filter->aslist[direct].name = NULL; | |
5918 | filter->aslist[direct].aslist = NULL; | |
70ee29b4 PM |
5919 | |
5920 | /* Process peer route updates. */ | |
5921 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 5922 | (direct == FILTER_OUT) ? 1 : 0); |
5923 | } | |
5924 | ||
5925 | return 0; | |
5926 | } | |
5927 | ||
5928 | static void peer_aslist_update(const char *aslist_name) | |
5929 | { | |
5930 | afi_t afi; | |
5931 | safi_t safi; | |
5932 | int direct; | |
5933 | struct listnode *mnode, *mnnode; | |
5934 | struct listnode *node, *nnode; | |
5935 | struct bgp *bgp; | |
5936 | struct peer *peer; | |
5937 | struct peer_group *group; | |
5938 | struct bgp_filter *filter; | |
5939 | ||
5940 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
5941 | update_group_policy_update(bgp, BGP_POLICY_FILTER_LIST, | |
5942 | aslist_name, 0, 0); | |
5943 | ||
5944 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
05c7a1cc QY |
5945 | FOREACH_AFI_SAFI (afi, safi) { |
5946 | filter = &peer->filter[afi][safi]; | |
5947 | ||
5948 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
5949 | direct++) { | |
5950 | if (filter->aslist[direct].name) | |
5951 | filter->aslist[direct] | |
5952 | .aslist = as_list_lookup( | |
d62a17ae | 5953 | filter->aslist[direct] |
05c7a1cc QY |
5954 | .name); |
5955 | else | |
5956 | filter->aslist[direct].aslist = | |
5957 | NULL; | |
d62a17ae | 5958 | } |
05c7a1cc | 5959 | } |
d62a17ae | 5960 | } |
5961 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
05c7a1cc QY |
5962 | FOREACH_AFI_SAFI (afi, safi) { |
5963 | filter = &group->conf->filter[afi][safi]; | |
5964 | ||
5965 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
5966 | direct++) { | |
5967 | if (filter->aslist[direct].name) | |
5968 | filter->aslist[direct] | |
5969 | .aslist = as_list_lookup( | |
d62a17ae | 5970 | filter->aslist[direct] |
05c7a1cc QY |
5971 | .name); |
5972 | else | |
5973 | filter->aslist[direct].aslist = | |
5974 | NULL; | |
d62a17ae | 5975 | } |
05c7a1cc | 5976 | } |
d62a17ae | 5977 | } |
5978 | } | |
5979 | } | |
5980 | ||
5981 | static void peer_aslist_add(char *aslist_name) | |
5982 | { | |
5983 | peer_aslist_update(aslist_name); | |
5984 | route_map_notify_dependencies((char *)aslist_name, | |
5985 | RMAP_EVENT_ASLIST_ADDED); | |
5986 | } | |
5987 | ||
5988 | static void peer_aslist_del(const char *aslist_name) | |
5989 | { | |
5990 | peer_aslist_update(aslist_name); | |
5991 | route_map_notify_dependencies(aslist_name, RMAP_EVENT_ASLIST_DELETED); | |
5992 | } | |
5993 | ||
5994 | ||
5995 | int peer_route_map_set(struct peer *peer, afi_t afi, safi_t safi, int direct, | |
5996 | const char *name) | |
5997 | { | |
70ee29b4 | 5998 | struct peer *member; |
d62a17ae | 5999 | struct bgp_filter *filter; |
d62a17ae | 6000 | struct listnode *node, *nnode; |
6001 | ||
6002 | if (direct != RMAP_IN && direct != RMAP_OUT) | |
6003 | return BGP_ERR_INVALID_VALUE; | |
6004 | ||
70ee29b4 | 6005 | /* Set configuration on peer. */ |
d62a17ae | 6006 | filter = &peer->filter[afi][safi]; |
d62a17ae | 6007 | if (filter->map[direct].name) |
6008 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); | |
d62a17ae | 6009 | filter->map[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); |
6010 | filter->map[direct].map = route_map_lookup_by_name(name); | |
6011 | ||
70ee29b4 | 6012 | /* Check if handling a regular peer. */ |
d62a17ae | 6013 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
6014 | /* Set override-flag and process peer route updates. */ |
6015 | SET_FLAG(peer->filter_override[afi][safi][direct], | |
6016 | PEER_FT_ROUTE_MAP); | |
d62a17ae | 6017 | peer_on_policy_change(peer, afi, safi, |
6018 | (direct == RMAP_OUT) ? 1 : 0); | |
70ee29b4 PM |
6019 | |
6020 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6021 | return 0; |
6022 | } | |
6023 | ||
70ee29b4 PM |
6024 | /* |
6025 | * Set configuration on all peer-group members, unless they are | |
6026 | * explicitely overriding peer-group configuration. | |
6027 | */ | |
6028 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6029 | /* Skip peers with overridden configuration. */ | |
6030 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
6031 | PEER_FT_ROUTE_MAP)) | |
6032 | continue; | |
d62a17ae | 6033 | |
70ee29b4 PM |
6034 | /* Set configuration on peer-group member. */ |
6035 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6036 | if (filter->map[direct].name) |
6037 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); | |
6038 | filter->map[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
6039 | filter->map[direct].map = route_map_lookup_by_name(name); | |
70ee29b4 PM |
6040 | |
6041 | /* Process peer route updates. */ | |
6042 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 6043 | (direct == RMAP_OUT) ? 1 : 0); |
6044 | } | |
6045 | return 0; | |
6046 | } | |
6047 | ||
6048 | /* Unset route-map from the peer. */ | |
6049 | int peer_route_map_unset(struct peer *peer, afi_t afi, safi_t safi, int direct) | |
6050 | { | |
70ee29b4 | 6051 | struct peer *member; |
d62a17ae | 6052 | struct bgp_filter *filter; |
d62a17ae | 6053 | struct listnode *node, *nnode; |
6054 | ||
6055 | if (direct != RMAP_IN && direct != RMAP_OUT) | |
6056 | return BGP_ERR_INVALID_VALUE; | |
6057 | ||
70ee29b4 PM |
6058 | /* Unset override-flag unconditionally. */ |
6059 | UNSET_FLAG(peer->filter_override[afi][safi][direct], PEER_FT_ROUTE_MAP); | |
d62a17ae | 6060 | |
70ee29b4 | 6061 | /* Inherit configuration from peer-group if peer is member. */ |
d62a17ae | 6062 | if (peer_group_active(peer)) { |
e7103a96 PM |
6063 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
6064 | filter[afi][safi].map[direct].name, | |
6065 | MTYPE_BGP_FILTER_NAME); | |
6066 | PEER_ATTR_INHERIT(peer, peer->group, | |
6067 | filter[afi][safi].map[direct].map); | |
70ee29b4 PM |
6068 | } else { |
6069 | /* Otherwise remove configuration from peer. */ | |
6070 | filter = &peer->filter[afi][safi]; | |
6071 | if (filter->map[direct].name) | |
6072 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); | |
6073 | filter->map[direct].name = NULL; | |
6074 | filter->map[direct].map = NULL; | |
d62a17ae | 6075 | } |
6076 | ||
70ee29b4 | 6077 | /* Check if handling a regular peer. */ |
d62a17ae | 6078 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 6079 | /* Process peer route updates. */ |
d62a17ae | 6080 | peer_on_policy_change(peer, afi, safi, |
6081 | (direct == RMAP_OUT) ? 1 : 0); | |
70ee29b4 PM |
6082 | |
6083 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6084 | return 0; |
6085 | } | |
6086 | ||
70ee29b4 PM |
6087 | /* |
6088 | * Remove configuration on all peer-group members, unless they are | |
6089 | * explicitely overriding peer-group configuration. | |
6090 | */ | |
6091 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6092 | /* Skip peers with overridden configuration. */ | |
6093 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
6094 | PEER_FT_ROUTE_MAP)) | |
6095 | continue; | |
d62a17ae | 6096 | |
70ee29b4 PM |
6097 | /* Remove configuration on peer-group member. */ |
6098 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6099 | if (filter->map[direct].name) |
6100 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); | |
6101 | filter->map[direct].name = NULL; | |
6102 | filter->map[direct].map = NULL; | |
70ee29b4 PM |
6103 | |
6104 | /* Process peer route updates. */ | |
6105 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 6106 | (direct == RMAP_OUT) ? 1 : 0); |
6107 | } | |
70ee29b4 | 6108 | |
d62a17ae | 6109 | return 0; |
6110 | } | |
6111 | ||
6112 | /* Set unsuppress-map to the peer. */ | |
6113 | int peer_unsuppress_map_set(struct peer *peer, afi_t afi, safi_t safi, | |
6114 | const char *name) | |
6115 | { | |
70ee29b4 | 6116 | struct peer *member; |
d62a17ae | 6117 | struct bgp_filter *filter; |
d62a17ae | 6118 | struct listnode *node, *nnode; |
6119 | ||
70ee29b4 | 6120 | /* Set configuration on peer. */ |
d62a17ae | 6121 | filter = &peer->filter[afi][safi]; |
d62a17ae | 6122 | if (filter->usmap.name) |
6123 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
d62a17ae | 6124 | filter->usmap.name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); |
6125 | filter->usmap.map = route_map_lookup_by_name(name); | |
6126 | ||
70ee29b4 | 6127 | /* Check if handling a regular peer. */ |
d62a17ae | 6128 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
6129 | /* Set override-flag and process peer route updates. */ |
6130 | SET_FLAG(peer->filter_override[afi][safi][0], | |
6131 | PEER_FT_UNSUPPRESS_MAP); | |
d62a17ae | 6132 | peer_on_policy_change(peer, afi, safi, 1); |
70ee29b4 PM |
6133 | |
6134 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6135 | return 0; |
6136 | } | |
6137 | ||
70ee29b4 PM |
6138 | /* |
6139 | * Set configuration on all peer-group members, unless they are | |
6140 | * explicitely overriding peer-group configuration. | |
6141 | */ | |
6142 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6143 | /* Skip peers with overridden configuration. */ | |
246bb5f0 | 6144 | if (CHECK_FLAG(member->filter_override[afi][safi][0], |
70ee29b4 PM |
6145 | PEER_FT_UNSUPPRESS_MAP)) |
6146 | continue; | |
d62a17ae | 6147 | |
70ee29b4 PM |
6148 | /* Set configuration on peer-group member. */ |
6149 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6150 | if (filter->usmap.name) |
6151 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
6152 | filter->usmap.name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
6153 | filter->usmap.map = route_map_lookup_by_name(name); | |
70ee29b4 PM |
6154 | |
6155 | /* Process peer route updates. */ | |
6156 | peer_on_policy_change(member, afi, safi, 1); | |
d62a17ae | 6157 | } |
70ee29b4 | 6158 | |
d62a17ae | 6159 | return 0; |
6160 | } | |
6161 | ||
6162 | /* Unset route-map from the peer. */ | |
6163 | int peer_unsuppress_map_unset(struct peer *peer, afi_t afi, safi_t safi) | |
718e3744 | 6164 | { |
70ee29b4 | 6165 | struct peer *member; |
d62a17ae | 6166 | struct bgp_filter *filter; |
d62a17ae | 6167 | struct listnode *node, *nnode; |
6168 | ||
70ee29b4 PM |
6169 | /* Unset override-flag unconditionally. */ |
6170 | UNSET_FLAG(peer->filter_override[afi][safi][0], PEER_FT_UNSUPPRESS_MAP); | |
718e3744 | 6171 | |
70ee29b4 PM |
6172 | /* Inherit configuration from peer-group if peer is member. */ |
6173 | if (peer_group_active(peer)) { | |
e7103a96 PM |
6174 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
6175 | filter[afi][safi].usmap.name, | |
6176 | MTYPE_BGP_FILTER_NAME); | |
6177 | PEER_ATTR_INHERIT(peer, peer->group, | |
6178 | filter[afi][safi].usmap.map); | |
70ee29b4 PM |
6179 | } else { |
6180 | /* Otherwise remove configuration from peer. */ | |
6181 | filter = &peer->filter[afi][safi]; | |
6182 | if (filter->usmap.name) | |
6183 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
6184 | filter->usmap.name = NULL; | |
6185 | filter->usmap.map = NULL; | |
6186 | } | |
718e3744 | 6187 | |
70ee29b4 | 6188 | /* Check if handling a regular peer. */ |
d62a17ae | 6189 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 6190 | /* Process peer route updates. */ |
d62a17ae | 6191 | peer_on_policy_change(peer, afi, safi, 1); |
70ee29b4 PM |
6192 | |
6193 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6194 | return 0; |
6195 | } | |
718e3744 | 6196 | |
70ee29b4 PM |
6197 | /* |
6198 | * Remove configuration on all peer-group members, unless they are | |
6199 | * explicitely overriding peer-group configuration. | |
6200 | */ | |
6201 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6202 | /* Skip peers with overridden configuration. */ | |
6203 | if (CHECK_FLAG(member->filter_override[afi][safi][0], | |
6204 | PEER_FT_UNSUPPRESS_MAP)) | |
6205 | continue; | |
718e3744 | 6206 | |
70ee29b4 PM |
6207 | /* Remove configuration on peer-group member. */ |
6208 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6209 | if (filter->usmap.name) |
6210 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
6211 | filter->usmap.name = NULL; | |
6212 | filter->usmap.map = NULL; | |
70ee29b4 PM |
6213 | |
6214 | /* Process peer route updates. */ | |
6215 | peer_on_policy_change(member, afi, safi, 1); | |
d62a17ae | 6216 | } |
70ee29b4 | 6217 | |
d62a17ae | 6218 | return 0; |
6219 | } | |
718e3744 | 6220 | |
d62a17ae | 6221 | int peer_maximum_prefix_set(struct peer *peer, afi_t afi, safi_t safi, |
d7c0a89a QY |
6222 | uint32_t max, uint8_t threshold, int warning, |
6223 | uint16_t restart) | |
d62a17ae | 6224 | { |
598ce6bd | 6225 | struct peer *member; |
d62a17ae | 6226 | struct listnode *node, *nnode; |
6227 | ||
598ce6bd PM |
6228 | /* Set flags and configuration on peer. */ |
6229 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_MAX_PREFIX); | |
d62a17ae | 6230 | if (warning) |
598ce6bd | 6231 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_MAX_PREFIX_WARNING); |
d62a17ae | 6232 | else |
598ce6bd PM |
6233 | peer_af_flag_unset(peer, afi, safi, |
6234 | PEER_FLAG_MAX_PREFIX_WARNING); | |
6235 | ||
04e1c5bb QY |
6236 | peer->pmax[afi][safi] = max; |
6237 | peer->pmax_threshold[afi][safi] = threshold; | |
6238 | peer->pmax_restart[afi][safi] = restart; | |
d62a17ae | 6239 | |
598ce6bd PM |
6240 | /* Check if handling a regular peer. */ |
6241 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
6242 | /* Re-check if peer violates maximum-prefix. */ | |
d62a17ae | 6243 | if ((peer->status == Established) && (peer->afc[afi][safi])) |
6244 | bgp_maximum_prefix_overflow(peer, afi, safi, 1); | |
04e1c5bb | 6245 | |
598ce6bd PM |
6246 | /* Skip peer-group mechanics for regular peers. */ |
6247 | return 0; | |
6248 | } | |
04e1c5bb | 6249 | |
598ce6bd PM |
6250 | /* |
6251 | * Set flags and configuration on all peer-group members, unless they | |
6252 | * are explicitely overriding peer-group configuration. | |
6253 | */ | |
6254 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6255 | /* Skip peers with overridden configuration. */ | |
6256 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
6257 | PEER_FLAG_MAX_PREFIX)) | |
6258 | continue; | |
04e1c5bb | 6259 | |
598ce6bd PM |
6260 | /* Set flag and configuration on peer-group member. */ |
6261 | member->pmax[afi][safi] = max; | |
6262 | member->pmax_threshold[afi][safi] = threshold; | |
6263 | member->pmax_restart[afi][safi] = restart; | |
04e1c5bb | 6264 | if (warning) |
598ce6bd | 6265 | SET_FLAG(member->af_flags[afi][safi], |
04e1c5bb QY |
6266 | PEER_FLAG_MAX_PREFIX_WARNING); |
6267 | else | |
598ce6bd | 6268 | UNSET_FLAG(member->af_flags[afi][safi], |
04e1c5bb | 6269 | PEER_FLAG_MAX_PREFIX_WARNING); |
598ce6bd PM |
6270 | |
6271 | /* Re-check if peer violates maximum-prefix. */ | |
6272 | if ((member->status == Established) && (member->afc[afi][safi])) | |
6273 | bgp_maximum_prefix_overflow(member, afi, safi, 1); | |
d62a17ae | 6274 | } |
718e3744 | 6275 | |
d62a17ae | 6276 | return 0; |
6277 | } | |
718e3744 | 6278 | |
d62a17ae | 6279 | int peer_maximum_prefix_unset(struct peer *peer, afi_t afi, safi_t safi) |
6280 | { | |
598ce6bd | 6281 | struct peer *member; |
d62a17ae | 6282 | struct listnode *node, *nnode; |
6283 | ||
598ce6bd PM |
6284 | /* Inherit configuration from peer-group if peer is member. */ |
6285 | if (peer_group_active(peer)) { | |
6286 | peer_af_flag_inherit(peer, afi, safi, PEER_FLAG_MAX_PREFIX); | |
6287 | peer_af_flag_inherit(peer, afi, safi, | |
6288 | PEER_FLAG_MAX_PREFIX_WARNING); | |
e7103a96 PM |
6289 | PEER_ATTR_INHERIT(peer, peer->group, pmax[afi][safi]); |
6290 | PEER_ATTR_INHERIT(peer, peer->group, pmax_threshold[afi][safi]); | |
6291 | PEER_ATTR_INHERIT(peer, peer->group, pmax_restart[afi][safi]); | |
04e1c5bb | 6292 | |
d62a17ae | 6293 | return 0; |
04e1c5bb | 6294 | } |
d62a17ae | 6295 | |
598ce6bd PM |
6296 | /* Remove flags and configuration from peer. */ |
6297 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_MAX_PREFIX); | |
6298 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_MAX_PREFIX_WARNING); | |
6299 | peer->pmax[afi][safi] = 0; | |
6300 | peer->pmax_threshold[afi][safi] = 0; | |
6301 | peer->pmax_restart[afi][safi] = 0; | |
6302 | ||
04e1c5bb | 6303 | /* |
598ce6bd PM |
6304 | * Remove flags and configuration from all peer-group members, unless |
6305 | * they are explicitely overriding peer-group configuration. | |
04e1c5bb | 6306 | */ |
598ce6bd PM |
6307 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { |
6308 | /* Skip peers with overridden configuration. */ | |
6309 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
6310 | PEER_FLAG_MAX_PREFIX)) | |
6311 | continue; | |
6312 | ||
6313 | /* Remove flag and configuration on peer-group member. */ | |
6314 | UNSET_FLAG(member->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX); | |
6315 | UNSET_FLAG(member->af_flags[afi][safi], | |
6316 | PEER_FLAG_MAX_PREFIX_WARNING); | |
6317 | member->pmax[afi][safi] = 0; | |
6318 | member->pmax_threshold[afi][safi] = 0; | |
6319 | member->pmax_restart[afi][safi] = 0; | |
d62a17ae | 6320 | } |
598ce6bd | 6321 | |
d62a17ae | 6322 | return 0; |
718e3744 | 6323 | } |
6324 | ||
d62a17ae | 6325 | int is_ebgp_multihop_configured(struct peer *peer) |
718e3744 | 6326 | { |
d62a17ae | 6327 | struct peer_group *group; |
6328 | struct listnode *node, *nnode; | |
6329 | struct peer *peer1; | |
718e3744 | 6330 | |
d62a17ae | 6331 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
6332 | group = peer->group; | |
6333 | if ((peer_sort(peer) != BGP_PEER_IBGP) | |
6334 | && (group->conf->ttl != 1)) | |
6335 | return 1; | |
718e3744 | 6336 | |
d62a17ae | 6337 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer1)) { |
6338 | if ((peer_sort(peer1) != BGP_PEER_IBGP) | |
6339 | && (peer1->ttl != 1)) | |
6340 | return 1; | |
6341 | } | |
6342 | } else { | |
6343 | if ((peer_sort(peer) != BGP_PEER_IBGP) && (peer->ttl != 1)) | |
6344 | return 1; | |
6345 | } | |
6346 | return 0; | |
6347 | } | |
718e3744 | 6348 | |
d62a17ae | 6349 | /* Set # of hops between us and BGP peer. */ |
6350 | int peer_ttl_security_hops_set(struct peer *peer, int gtsm_hops) | |
6351 | { | |
6352 | struct peer_group *group; | |
6353 | struct listnode *node, *nnode; | |
6354 | int ret; | |
6355 | ||
6356 | zlog_debug("peer_ttl_security_hops_set: set gtsm_hops to %d for %s", | |
6357 | gtsm_hops, peer->host); | |
6358 | ||
6359 | /* We cannot configure ttl-security hops when ebgp-multihop is already | |
6360 | set. For non peer-groups, the check is simple. For peer-groups, | |
6361 | it's | |
6362 | slightly messy, because we need to check both the peer-group | |
6363 | structure | |
6364 | and all peer-group members for any trace of ebgp-multihop | |
6365 | configuration | |
6366 | before actually applying the ttl-security rules. Cisco really made a | |
6367 | mess of this configuration parameter, and OpenBGPD got it right. | |
6368 | */ | |
6369 | ||
6370 | if ((peer->gtsm_hops == 0) && (peer->sort != BGP_PEER_IBGP)) { | |
6371 | if (is_ebgp_multihop_configured(peer)) | |
6372 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
6373 | ||
6374 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
6375 | peer->gtsm_hops = gtsm_hops; | |
6376 | ||
6377 | /* Calling ebgp multihop also resets the session. | |
6378 | * On restart, NHT will get setup correctly as will the | |
6379 | * min & max ttls on the socket. The return value is | |
6380 | * irrelevant. | |
6381 | */ | |
6382 | ret = peer_ebgp_multihop_set(peer, MAXTTL); | |
6383 | ||
6384 | if (ret != 0) | |
6385 | return ret; | |
6386 | } else { | |
6387 | group = peer->group; | |
6388 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, | |
6389 | peer)) { | |
6390 | peer->gtsm_hops = group->conf->gtsm_hops; | |
6391 | ||
6392 | /* Calling ebgp multihop also resets the | |
6393 | * session. | |
6394 | * On restart, NHT will get setup correctly as | |
6395 | * will the | |
6396 | * min & max ttls on the socket. The return | |
6397 | * value is | |
6398 | * irrelevant. | |
6399 | */ | |
6400 | peer_ebgp_multihop_set(peer, MAXTTL); | |
6401 | } | |
6402 | } | |
6403 | } else { | |
6404 | /* Post the first gtsm setup or if its ibgp, maxttl setting | |
6405 | * isn't | |
6406 | * necessary, just set the minttl. | |
6407 | */ | |
6408 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
6409 | peer->gtsm_hops = gtsm_hops; | |
6410 | ||
6411 | if (peer->fd >= 0) | |
6412 | sockopt_minttl(peer->su.sa.sa_family, peer->fd, | |
6413 | MAXTTL + 1 - gtsm_hops); | |
6414 | if ((peer->status < Established) && peer->doppelganger | |
6415 | && (peer->doppelganger->fd >= 0)) | |
6416 | sockopt_minttl(peer->su.sa.sa_family, | |
6417 | peer->doppelganger->fd, | |
6418 | MAXTTL + 1 - gtsm_hops); | |
6419 | } else { | |
6420 | group = peer->group; | |
6421 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, | |
6422 | peer)) { | |
6423 | peer->gtsm_hops = group->conf->gtsm_hops; | |
6424 | ||
6425 | /* Change setting of existing peer | |
6426 | * established then change value (may break | |
6427 | * connectivity) | |
6428 | * not established yet (teardown session and | |
6429 | * restart) | |
6430 | * no session then do nothing (will get | |
6431 | * handled by next connection) | |
6432 | */ | |
6433 | if (peer->fd >= 0 && peer->gtsm_hops != 0) | |
6434 | sockopt_minttl( | |
6435 | peer->su.sa.sa_family, peer->fd, | |
6436 | MAXTTL + 1 - peer->gtsm_hops); | |
6437 | if ((peer->status < Established) | |
6438 | && peer->doppelganger | |
6439 | && (peer->doppelganger->fd >= 0)) | |
6440 | sockopt_minttl(peer->su.sa.sa_family, | |
6441 | peer->doppelganger->fd, | |
6442 | MAXTTL + 1 - gtsm_hops); | |
6443 | } | |
6444 | } | |
6445 | } | |
718e3744 | 6446 | |
d62a17ae | 6447 | return 0; |
718e3744 | 6448 | } |
6449 | ||
d62a17ae | 6450 | int peer_ttl_security_hops_unset(struct peer *peer) |
6451 | { | |
6452 | struct peer_group *group; | |
6453 | struct listnode *node, *nnode; | |
6454 | int ret = 0; | |
6455 | ||
6456 | zlog_debug("peer_ttl_security_hops_unset: set gtsm_hops to zero for %s", | |
6457 | peer->host); | |
6458 | ||
6459 | /* if a peer-group member, then reset to peer-group default rather than | |
6460 | * 0 */ | |
6461 | if (peer_group_active(peer)) | |
6462 | peer->gtsm_hops = peer->group->conf->gtsm_hops; | |
6463 | else | |
6464 | peer->gtsm_hops = 0; | |
6465 | ||
6466 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
6467 | /* Invoking ebgp_multihop_set will set the TTL back to the | |
6468 | * original | |
6469 | * value as well as restting the NHT and such. The session is | |
6470 | * reset. | |
6471 | */ | |
6472 | if (peer->sort == BGP_PEER_EBGP) | |
6473 | ret = peer_ebgp_multihop_unset(peer); | |
6474 | else { | |
6475 | if (peer->fd >= 0) | |
6476 | sockopt_minttl(peer->su.sa.sa_family, peer->fd, | |
6477 | 0); | |
6478 | ||
6479 | if ((peer->status < Established) && peer->doppelganger | |
6480 | && (peer->doppelganger->fd >= 0)) | |
6481 | sockopt_minttl(peer->su.sa.sa_family, | |
6482 | peer->doppelganger->fd, 0); | |
6483 | } | |
6484 | } else { | |
6485 | group = peer->group; | |
6486 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
6487 | peer->gtsm_hops = 0; | |
6488 | if (peer->sort == BGP_PEER_EBGP) | |
6489 | ret = peer_ebgp_multihop_unset(peer); | |
6490 | else { | |
6491 | if (peer->fd >= 0) | |
6492 | sockopt_minttl(peer->su.sa.sa_family, | |
6493 | peer->fd, 0); | |
6494 | ||
6495 | if ((peer->status < Established) | |
6496 | && peer->doppelganger | |
6497 | && (peer->doppelganger->fd >= 0)) | |
6498 | sockopt_minttl(peer->su.sa.sa_family, | |
6499 | peer->doppelganger->fd, | |
6500 | 0); | |
6501 | } | |
6502 | } | |
6503 | } | |
718e3744 | 6504 | |
d62a17ae | 6505 | return ret; |
6506 | } | |
6507 | ||
6508 | /* | |
6509 | * If peer clear is invoked in a loop for all peers on the BGP instance, | |
6510 | * it may end up freeing the doppelganger, and if this was the next node | |
6511 | * to the current node, we would end up accessing the freed next node. | |
6512 | * Pass along additional parameter which can be updated if next node | |
6513 | * is freed; only required when walking the peer list on BGP instance. | |
6514 | */ | |
6515 | int peer_clear(struct peer *peer, struct listnode **nnode) | |
6516 | { | |
6517 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_SHUTDOWN)) { | |
6518 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_PREFIX_OVERFLOW)) { | |
6519 | UNSET_FLAG(peer->sflags, PEER_STATUS_PREFIX_OVERFLOW); | |
6520 | if (peer->t_pmax_restart) { | |
6521 | BGP_TIMER_OFF(peer->t_pmax_restart); | |
6522 | if (bgp_debug_neighbor_events(peer)) | |
6523 | zlog_debug( | |
6524 | "%s Maximum-prefix restart timer canceled", | |
6525 | peer->host); | |
6526 | } | |
6527 | BGP_EVENT_ADD(peer, BGP_Start); | |
6528 | return 0; | |
6529 | } | |
6530 | ||
6531 | peer->v_start = BGP_INIT_START_TIMER; | |
6532 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
6533 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
6534 | BGP_NOTIFY_CEASE_ADMIN_RESET); | |
6535 | else | |
6536 | bgp_session_reset_safe(peer, nnode); | |
718e3744 | 6537 | } |
d62a17ae | 6538 | return 0; |
718e3744 | 6539 | } |
6b0655a2 | 6540 | |
d62a17ae | 6541 | int peer_clear_soft(struct peer *peer, afi_t afi, safi_t safi, |
6542 | enum bgp_clear_type stype) | |
718e3744 | 6543 | { |
d62a17ae | 6544 | struct peer_af *paf; |
718e3744 | 6545 | |
d62a17ae | 6546 | if (peer->status != Established) |
6547 | return 0; | |
718e3744 | 6548 | |
d62a17ae | 6549 | if (!peer->afc[afi][safi]) |
6550 | return BGP_ERR_AF_UNCONFIGURED; | |
718e3744 | 6551 | |
d62a17ae | 6552 | peer->rtt = sockopt_tcp_rtt(peer->fd); |
718e3744 | 6553 | |
d62a17ae | 6554 | if (stype == BGP_CLEAR_SOFT_OUT || stype == BGP_CLEAR_SOFT_BOTH) { |
6555 | /* Clear the "neighbor x.x.x.x default-originate" flag */ | |
6556 | paf = peer_af_find(peer, afi, safi); | |
6557 | if (paf && paf->subgroup | |
6558 | && CHECK_FLAG(paf->subgroup->sflags, | |
6559 | SUBGRP_STATUS_DEFAULT_ORIGINATE)) | |
6560 | UNSET_FLAG(paf->subgroup->sflags, | |
6561 | SUBGRP_STATUS_DEFAULT_ORIGINATE); | |
718e3744 | 6562 | |
d62a17ae | 6563 | bgp_announce_route(peer, afi, safi); |
6564 | } | |
718e3744 | 6565 | |
d62a17ae | 6566 | if (stype == BGP_CLEAR_SOFT_IN_ORF_PREFIX) { |
6567 | if (CHECK_FLAG(peer->af_cap[afi][safi], | |
6568 | PEER_CAP_ORF_PREFIX_SM_ADV) | |
6569 | && (CHECK_FLAG(peer->af_cap[afi][safi], | |
6570 | PEER_CAP_ORF_PREFIX_RM_RCV) | |
6571 | || CHECK_FLAG(peer->af_cap[afi][safi], | |
6572 | PEER_CAP_ORF_PREFIX_RM_OLD_RCV))) { | |
6573 | struct bgp_filter *filter = &peer->filter[afi][safi]; | |
d7c0a89a | 6574 | uint8_t prefix_type; |
d62a17ae | 6575 | |
6576 | if (CHECK_FLAG(peer->af_cap[afi][safi], | |
6577 | PEER_CAP_ORF_PREFIX_RM_RCV)) | |
6578 | prefix_type = ORF_TYPE_PREFIX; | |
6579 | else | |
6580 | prefix_type = ORF_TYPE_PREFIX_OLD; | |
6581 | ||
6582 | if (filter->plist[FILTER_IN].plist) { | |
6583 | if (CHECK_FLAG(peer->af_sflags[afi][safi], | |
6584 | PEER_STATUS_ORF_PREFIX_SEND)) | |
6585 | bgp_route_refresh_send( | |
6586 | peer, afi, safi, prefix_type, | |
6587 | REFRESH_DEFER, 1); | |
6588 | bgp_route_refresh_send(peer, afi, safi, | |
6589 | prefix_type, | |
6590 | REFRESH_IMMEDIATE, 0); | |
6591 | } else { | |
6592 | if (CHECK_FLAG(peer->af_sflags[afi][safi], | |
6593 | PEER_STATUS_ORF_PREFIX_SEND)) | |
6594 | bgp_route_refresh_send( | |
6595 | peer, afi, safi, prefix_type, | |
6596 | REFRESH_IMMEDIATE, 1); | |
6597 | else | |
6598 | bgp_route_refresh_send(peer, afi, safi, | |
6599 | 0, 0, 0); | |
6600 | } | |
6601 | return 0; | |
6602 | } | |
6603 | } | |
718e3744 | 6604 | |
d62a17ae | 6605 | if (stype == BGP_CLEAR_SOFT_IN || stype == BGP_CLEAR_SOFT_BOTH |
6606 | || stype == BGP_CLEAR_SOFT_IN_ORF_PREFIX) { | |
6607 | /* If neighbor has soft reconfiguration inbound flag. | |
6608 | Use Adj-RIB-In database. */ | |
6609 | if (CHECK_FLAG(peer->af_flags[afi][safi], | |
6610 | PEER_FLAG_SOFT_RECONFIG)) | |
6611 | bgp_soft_reconfig_in(peer, afi, safi); | |
6612 | else { | |
6613 | /* If neighbor has route refresh capability, send route | |
6614 | refresh | |
6615 | message to the peer. */ | |
6616 | if (CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_OLD_RCV) | |
6617 | || CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_NEW_RCV)) | |
6618 | bgp_route_refresh_send(peer, afi, safi, 0, 0, | |
6619 | 0); | |
6620 | else | |
6621 | return BGP_ERR_SOFT_RECONFIG_UNCONFIGURED; | |
6622 | } | |
6623 | } | |
6624 | return 0; | |
718e3744 | 6625 | } |
6626 | ||
d62a17ae | 6627 | /* Display peer uptime.*/ |
d7c0a89a | 6628 | char *peer_uptime(time_t uptime2, char *buf, size_t len, uint8_t use_json, |
d62a17ae | 6629 | json_object *json) |
6630 | { | |
6631 | time_t uptime1, epoch_tbuf; | |
6632 | struct tm *tm; | |
6633 | ||
6634 | /* Check buffer length. */ | |
6635 | if (len < BGP_UPTIME_LEN) { | |
6636 | if (!use_json) { | |
6637 | zlog_warn("peer_uptime (): buffer shortage %lu", | |
d7c0a89a | 6638 | (unsigned long)len); |
d62a17ae | 6639 | /* XXX: should return status instead of buf... */ |
6640 | snprintf(buf, len, "<error> "); | |
6641 | } | |
6642 | return buf; | |
6643 | } | |
6644 | ||
6645 | /* If there is no connection has been done before print `never'. */ | |
6646 | if (uptime2 == 0) { | |
6647 | if (use_json) { | |
6648 | json_object_string_add(json, "peerUptime", "never"); | |
6649 | json_object_int_add(json, "peerUptimeMsec", 0); | |
6650 | } else | |
6651 | snprintf(buf, len, "never"); | |
6652 | return buf; | |
6653 | } | |
718e3744 | 6654 | |
d62a17ae | 6655 | /* Get current time. */ |
6656 | uptime1 = bgp_clock(); | |
6657 | uptime1 -= uptime2; | |
6658 | tm = gmtime(&uptime1); | |
718e3744 | 6659 | |
d62a17ae | 6660 | if (uptime1 < ONE_DAY_SECOND) |
6661 | snprintf(buf, len, "%02d:%02d:%02d", tm->tm_hour, tm->tm_min, | |
6662 | tm->tm_sec); | |
6663 | else if (uptime1 < ONE_WEEK_SECOND) | |
6664 | snprintf(buf, len, "%dd%02dh%02dm", tm->tm_yday, tm->tm_hour, | |
6665 | tm->tm_min); | |
6666 | else if (uptime1 < ONE_YEAR_SECOND) | |
6667 | snprintf(buf, len, "%02dw%dd%02dh", tm->tm_yday / 7, | |
6668 | tm->tm_yday - ((tm->tm_yday / 7) * 7), tm->tm_hour); | |
6669 | else | |
6670 | snprintf(buf, len, "%02dy%02dw%dd", tm->tm_year - 70, | |
6671 | tm->tm_yday / 7, | |
6672 | tm->tm_yday - ((tm->tm_yday / 7) * 7)); | |
6673 | ||
6674 | if (use_json) { | |
6675 | epoch_tbuf = time(NULL) - uptime1; | |
6676 | json_object_string_add(json, "peerUptime", buf); | |
6677 | json_object_int_add(json, "peerUptimeMsec", uptime1 * 1000); | |
6678 | json_object_int_add(json, "peerUptimeEstablishedEpoch", | |
6679 | epoch_tbuf); | |
6680 | } | |
718e3744 | 6681 | |
d62a17ae | 6682 | return buf; |
718e3744 | 6683 | } |
6684 | ||
d62a17ae | 6685 | static void bgp_config_write_filter(struct vty *vty, struct peer *peer, |
2b791107 | 6686 | afi_t afi, safi_t safi) |
518f0eb1 | 6687 | { |
d62a17ae | 6688 | struct bgp_filter *filter; |
d62a17ae | 6689 | char *addr; |
518f0eb1 | 6690 | |
d62a17ae | 6691 | addr = peer->host; |
6692 | filter = &peer->filter[afi][safi]; | |
518f0eb1 | 6693 | |
d62a17ae | 6694 | /* distribute-list. */ |
70ee29b4 PM |
6695 | if (peergroup_filter_check(peer, afi, safi, PEER_FT_DISTRIBUTE_LIST, |
6696 | FILTER_IN)) | |
6697 | vty_out(vty, " neighbor %s distribute-list %s in\n", addr, | |
6698 | filter->dlist[FILTER_IN].name); | |
6b0655a2 | 6699 | |
70ee29b4 PM |
6700 | if (peergroup_filter_check(peer, afi, safi, PEER_FT_DISTRIBUTE_LIST, |
6701 | FILTER_OUT)) | |
2b791107 | 6702 | vty_out(vty, " neighbor %s distribute-list %s out\n", addr, |
70ee29b4 | 6703 | filter->dlist[FILTER_OUT].name); |
718e3744 | 6704 | |
d62a17ae | 6705 | /* prefix-list. */ |
70ee29b4 PM |
6706 | if (peergroup_filter_check(peer, afi, safi, PEER_FT_PREFIX_LIST, |
6707 | FILTER_IN)) | |
6708 | vty_out(vty, " neighbor %s prefix-list %s in\n", addr, | |
6709 | filter->plist[FILTER_IN].name); | |
718e3744 | 6710 | |
70ee29b4 PM |
6711 | if (peergroup_filter_check(peer, afi, safi, PEER_FT_PREFIX_LIST, |
6712 | FILTER_OUT)) | |
6713 | vty_out(vty, " neighbor %s prefix-list %s out\n", addr, | |
6714 | filter->plist[FILTER_OUT].name); | |
718e3744 | 6715 | |
d62a17ae | 6716 | /* route-map. */ |
70ee29b4 PM |
6717 | if (peergroup_filter_check(peer, afi, safi, PEER_FT_ROUTE_MAP, RMAP_IN)) |
6718 | vty_out(vty, " neighbor %s route-map %s in\n", addr, | |
6719 | filter->map[RMAP_IN].name); | |
518f0eb1 | 6720 | |
70ee29b4 PM |
6721 | if (peergroup_filter_check(peer, afi, safi, PEER_FT_ROUTE_MAP, |
6722 | RMAP_OUT)) | |
6723 | vty_out(vty, " neighbor %s route-map %s out\n", addr, | |
6724 | filter->map[RMAP_OUT].name); | |
718e3744 | 6725 | |
d62a17ae | 6726 | /* unsuppress-map */ |
70ee29b4 | 6727 | if (peergroup_filter_check(peer, afi, safi, PEER_FT_UNSUPPRESS_MAP, 0)) |
2b791107 DL |
6728 | vty_out(vty, " neighbor %s unsuppress-map %s\n", addr, |
6729 | filter->usmap.name); | |
718e3744 | 6730 | |
d62a17ae | 6731 | /* filter-list. */ |
70ee29b4 PM |
6732 | if (peergroup_filter_check(peer, afi, safi, PEER_FT_FILTER_LIST, |
6733 | FILTER_IN)) | |
6734 | vty_out(vty, " neighbor %s filter-list %s in\n", addr, | |
6735 | filter->aslist[FILTER_IN].name); | |
718e3744 | 6736 | |
70ee29b4 PM |
6737 | if (peergroup_filter_check(peer, afi, safi, PEER_FT_FILTER_LIST, |
6738 | FILTER_OUT)) | |
2b791107 | 6739 | vty_out(vty, " neighbor %s filter-list %s out\n", addr, |
70ee29b4 | 6740 | filter->aslist[FILTER_OUT].name); |
718e3744 | 6741 | } |
6742 | ||
d62a17ae | 6743 | /* BGP peer configuration display function. */ |
6744 | static void bgp_config_write_peer_global(struct vty *vty, struct bgp *bgp, | |
6745 | struct peer *peer) | |
6746 | { | |
6747 | struct peer *g_peer = NULL; | |
6748 | char buf[SU_ADDRSTRLEN]; | |
6749 | char *addr; | |
6750 | int if_pg_printed = FALSE; | |
6751 | int if_ras_printed = FALSE; | |
6752 | ||
6753 | /* Skip dynamic neighbors. */ | |
6754 | if (peer_dynamic_neighbor(peer)) | |
6755 | return; | |
6756 | ||
6757 | if (peer->conf_if) | |
6758 | addr = peer->conf_if; | |
6759 | else | |
6760 | addr = peer->host; | |
6761 | ||
6762 | /************************************ | |
6763 | ****** Global to the neighbor ****** | |
6764 | ************************************/ | |
6765 | if (peer->conf_if) { | |
6766 | if (CHECK_FLAG(peer->flags, PEER_FLAG_IFPEER_V6ONLY)) | |
6767 | vty_out(vty, " neighbor %s interface v6only", addr); | |
6768 | else | |
6769 | vty_out(vty, " neighbor %s interface", addr); | |
6770 | ||
6771 | if (peer_group_active(peer)) { | |
6772 | vty_out(vty, " peer-group %s", peer->group->name); | |
6773 | if_pg_printed = TRUE; | |
6774 | } else if (peer->as_type == AS_SPECIFIED) { | |
6775 | vty_out(vty, " remote-as %u", peer->as); | |
6776 | if_ras_printed = TRUE; | |
6777 | } else if (peer->as_type == AS_INTERNAL) { | |
6778 | vty_out(vty, " remote-as internal"); | |
6779 | if_ras_printed = TRUE; | |
6780 | } else if (peer->as_type == AS_EXTERNAL) { | |
6781 | vty_out(vty, " remote-as external"); | |
6782 | if_ras_printed = TRUE; | |
6783 | } | |
718e3744 | 6784 | |
d62a17ae | 6785 | vty_out(vty, "\n"); |
6786 | } | |
718e3744 | 6787 | |
d62a17ae | 6788 | /* remote-as and peer-group */ |
6789 | /* peer is a member of a peer-group */ | |
6790 | if (peer_group_active(peer)) { | |
6791 | g_peer = peer->group->conf; | |
6792 | ||
6793 | if (g_peer->as_type == AS_UNSPECIFIED && !if_ras_printed) { | |
6794 | if (peer->as_type == AS_SPECIFIED) { | |
6795 | vty_out(vty, " neighbor %s remote-as %u\n", | |
6796 | addr, peer->as); | |
6797 | } else if (peer->as_type == AS_INTERNAL) { | |
6798 | vty_out(vty, | |
6799 | " neighbor %s remote-as internal\n", | |
6800 | addr); | |
6801 | } else if (peer->as_type == AS_EXTERNAL) { | |
6802 | vty_out(vty, | |
6803 | " neighbor %s remote-as external\n", | |
6804 | addr); | |
6805 | } | |
6806 | } | |
718e3744 | 6807 | |
d62a17ae | 6808 | /* For swpX peers we displayed the peer-group |
6809 | * via 'neighbor swpX interface peer-group WORD' */ | |
6810 | if (!if_pg_printed) | |
6811 | vty_out(vty, " neighbor %s peer-group %s\n", addr, | |
6812 | peer->group->name); | |
6813 | } | |
718e3744 | 6814 | |
d62a17ae | 6815 | /* peer is NOT a member of a peer-group */ |
6816 | else { | |
6817 | /* peer is a peer-group, declare the peer-group */ | |
6818 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
6819 | vty_out(vty, " neighbor %s peer-group\n", addr); | |
6820 | } | |
6b0655a2 | 6821 | |
d62a17ae | 6822 | if (!if_ras_printed) { |
6823 | if (peer->as_type == AS_SPECIFIED) { | |
6824 | vty_out(vty, " neighbor %s remote-as %u\n", | |
6825 | addr, peer->as); | |
6826 | } else if (peer->as_type == AS_INTERNAL) { | |
6827 | vty_out(vty, | |
6828 | " neighbor %s remote-as internal\n", | |
6829 | addr); | |
6830 | } else if (peer->as_type == AS_EXTERNAL) { | |
6831 | vty_out(vty, | |
6832 | " neighbor %s remote-as external\n", | |
6833 | addr); | |
6834 | } | |
6835 | } | |
6836 | } | |
718e3744 | 6837 | |
d62a17ae | 6838 | /* local-as */ |
a14810f4 PM |
6839 | if (peergroup_flag_check(peer, PEER_FLAG_LOCAL_AS)) { |
6840 | vty_out(vty, " neighbor %s local-as %u", addr, | |
6841 | peer->change_local_as); | |
6842 | if (peergroup_flag_check(peer, PEER_FLAG_LOCAL_AS_NO_PREPEND)) | |
6843 | vty_out(vty, " no-prepend"); | |
6844 | if (peergroup_flag_check(peer, PEER_FLAG_LOCAL_AS_REPLACE_AS)) | |
6845 | vty_out(vty, " replace-as"); | |
6846 | vty_out(vty, "\n"); | |
5f9adb5d | 6847 | } |
5f9adb5d | 6848 | |
d62a17ae | 6849 | /* description */ |
6850 | if (peer->desc) { | |
6851 | vty_out(vty, " neighbor %s description %s\n", addr, peer->desc); | |
6852 | } | |
fa411a21 | 6853 | |
d62a17ae | 6854 | /* shutdown */ |
9fb964de PM |
6855 | if (peergroup_flag_check(peer, PEER_FLAG_SHUTDOWN)) { |
6856 | if (peer->tx_shutdown_message) | |
6857 | vty_out(vty, " neighbor %s shutdown message %s\n", addr, | |
6858 | peer->tx_shutdown_message); | |
6859 | else | |
6860 | vty_out(vty, " neighbor %s shutdown\n", addr); | |
d62a17ae | 6861 | } |
fa411a21 | 6862 | |
d62a17ae | 6863 | /* bfd */ |
6864 | if (peer->bfd_info) { | |
6865 | if (!peer_group_active(peer) || !g_peer->bfd_info) { | |
6866 | bgp_bfd_peer_config_write(vty, peer, addr); | |
6867 | } | |
6868 | } | |
e5cc509c | 6869 | |
d62a17ae | 6870 | /* password */ |
a14810f4 PM |
6871 | if (peergroup_flag_check(peer, PEER_FLAG_PASSWORD)) |
6872 | vty_out(vty, " neighbor %s password %s\n", addr, | |
6873 | peer->password); | |
fa411a21 | 6874 | |
d62a17ae | 6875 | /* neighbor solo */ |
6876 | if (CHECK_FLAG(peer->flags, PEER_FLAG_LONESOUL)) { | |
6877 | if (!peer_group_active(peer)) { | |
6878 | vty_out(vty, " neighbor %s solo\n", addr); | |
6879 | } | |
6880 | } | |
fa411a21 | 6881 | |
d62a17ae | 6882 | /* BGP port */ |
6883 | if (peer->port != BGP_PORT_DEFAULT) { | |
6884 | vty_out(vty, " neighbor %s port %d\n", addr, peer->port); | |
6885 | } | |
e5cc509c | 6886 | |
d62a17ae | 6887 | /* Local interface name */ |
6888 | if (peer->ifname) { | |
6889 | vty_out(vty, " neighbor %s interface %s\n", addr, peer->ifname); | |
e5cc509c | 6890 | } |
fa411a21 | 6891 | |
d62a17ae | 6892 | /* passive */ |
9fb964de PM |
6893 | if (peergroup_flag_check(peer, PEER_FLAG_PASSIVE)) |
6894 | vty_out(vty, " neighbor %s passive\n", addr); | |
1ff9a340 | 6895 | |
d62a17ae | 6896 | /* ebgp-multihop */ |
6897 | if (peer->sort != BGP_PEER_IBGP && peer->ttl != 1 | |
6898 | && !(peer->gtsm_hops != 0 && peer->ttl == MAXTTL)) { | |
6899 | if (!peer_group_active(peer) || g_peer->ttl != peer->ttl) { | |
6900 | vty_out(vty, " neighbor %s ebgp-multihop %d\n", addr, | |
6901 | peer->ttl); | |
6902 | } | |
fa411a21 | 6903 | } |
fa411a21 | 6904 | |
d62a17ae | 6905 | /* ttl-security hops */ |
6906 | if (peer->gtsm_hops != 0) { | |
6907 | if (!peer_group_active(peer) | |
6908 | || g_peer->gtsm_hops != peer->gtsm_hops) { | |
6909 | vty_out(vty, " neighbor %s ttl-security hops %d\n", | |
6910 | addr, peer->gtsm_hops); | |
6911 | } | |
6912 | } | |
6913 | ||
6914 | /* disable-connected-check */ | |
9fb964de PM |
6915 | if (peergroup_flag_check(peer, PEER_FLAG_DISABLE_CONNECTED_CHECK)) |
6916 | vty_out(vty, " neighbor %s disable-connected-check\n", addr); | |
d62a17ae | 6917 | |
47cbc09b | 6918 | /* enforce-first-as */ |
9fb964de PM |
6919 | if (peergroup_flag_check(peer, PEER_FLAG_ENFORCE_FIRST_AS)) |
6920 | vty_out(vty, " neighbor %s enforce-first-as\n", addr); | |
47cbc09b | 6921 | |
d62a17ae | 6922 | /* update-source */ |
a14810f4 PM |
6923 | if (peergroup_flag_check(peer, PEER_FLAG_UPDATE_SOURCE)) { |
6924 | if (peer->update_source) | |
d62a17ae | 6925 | vty_out(vty, " neighbor %s update-source %s\n", addr, |
6926 | sockunion2str(peer->update_source, buf, | |
6927 | SU_ADDRSTRLEN)); | |
a14810f4 PM |
6928 | else if (peer->update_if) |
6929 | vty_out(vty, " neighbor %s update-source %s\n", addr, | |
6930 | peer->update_if); | |
d62a17ae | 6931 | } |
6932 | ||
6933 | /* advertisement-interval */ | |
b90a8e13 | 6934 | if (peergroup_flag_check(peer, PEER_FLAG_ROUTEADV)) |
d62a17ae | 6935 | vty_out(vty, " neighbor %s advertisement-interval %u\n", addr, |
b90a8e13 | 6936 | peer->routeadv); |
d62a17ae | 6937 | |
6938 | /* timers */ | |
b90a8e13 | 6939 | if (peergroup_flag_check(peer, PEER_FLAG_TIMER)) |
d62a17ae | 6940 | vty_out(vty, " neighbor %s timers %u %u\n", addr, |
6941 | peer->keepalive, peer->holdtime); | |
d62a17ae | 6942 | |
b90a8e13 PM |
6943 | /* timers connect */ |
6944 | if (peergroup_flag_check(peer, PEER_FLAG_TIMER_CONNECT)) | |
d62a17ae | 6945 | vty_out(vty, " neighbor %s timers connect %u\n", addr, |
6946 | peer->connect); | |
6b0655a2 | 6947 | |
d62a17ae | 6948 | /* capability dynamic */ |
9fb964de PM |
6949 | if (peergroup_flag_check(peer, PEER_FLAG_DYNAMIC_CAPABILITY)) |
6950 | vty_out(vty, " neighbor %s capability dynamic\n", addr); | |
718e3744 | 6951 | |
d62a17ae | 6952 | /* capability extended-nexthop */ |
9fb964de PM |
6953 | if (peergroup_flag_check(peer, PEER_FLAG_CAPABILITY_ENHE)) { |
6954 | if (CHECK_FLAG(peer->flags_invert, PEER_FLAG_CAPABILITY_ENHE)) | |
d62a17ae | 6955 | vty_out(vty, |
6956 | " no neighbor %s capability extended-nexthop\n", | |
6957 | addr); | |
9fb964de | 6958 | else |
d62a17ae | 6959 | vty_out(vty, |
6960 | " neighbor %s capability extended-nexthop\n", | |
6961 | addr); | |
d62a17ae | 6962 | } |
6963 | ||
6964 | /* dont-capability-negotiation */ | |
9fb964de PM |
6965 | if (peergroup_flag_check(peer, PEER_FLAG_DONT_CAPABILITY)) |
6966 | vty_out(vty, " neighbor %s dont-capability-negotiate\n", addr); | |
d62a17ae | 6967 | |
6968 | /* override-capability */ | |
9fb964de PM |
6969 | if (peergroup_flag_check(peer, PEER_FLAG_OVERRIDE_CAPABILITY)) |
6970 | vty_out(vty, " neighbor %s override-capability\n", addr); | |
d62a17ae | 6971 | |
6972 | /* strict-capability-match */ | |
9fb964de PM |
6973 | if (peergroup_flag_check(peer, PEER_FLAG_STRICT_CAP_MATCH)) |
6974 | vty_out(vty, " neighbor %s strict-capability-match\n", addr); | |
0b960b4d DW |
6975 | } |
6976 | ||
0b960b4d | 6977 | /* BGP peer configuration display function. */ |
d62a17ae | 6978 | static void bgp_config_write_peer_af(struct vty *vty, struct bgp *bgp, |
2b791107 | 6979 | struct peer *peer, afi_t afi, safi_t safi) |
d62a17ae | 6980 | { |
6981 | struct peer *g_peer = NULL; | |
6982 | char *addr; | |
27c05d4d | 6983 | bool flag_scomm, flag_secomm, flag_slcomm; |
d62a17ae | 6984 | |
6985 | /* Skip dynamic neighbors. */ | |
6986 | if (peer_dynamic_neighbor(peer)) | |
6987 | return; | |
6988 | ||
6989 | if (peer->conf_if) | |
6990 | addr = peer->conf_if; | |
6991 | else | |
6992 | addr = peer->host; | |
6993 | ||
6994 | /************************************ | |
6995 | ****** Per AF to the neighbor ****** | |
6996 | ************************************/ | |
6997 | if (peer_group_active(peer)) { | |
6998 | g_peer = peer->group->conf; | |
6999 | ||
7000 | /* If the peer-group is active but peer is not, print a 'no | |
7001 | * activate' */ | |
7002 | if (g_peer->afc[afi][safi] && !peer->afc[afi][safi]) { | |
2b791107 | 7003 | vty_out(vty, " no neighbor %s activate\n", addr); |
d62a17ae | 7004 | } |
7005 | ||
7006 | /* If the peer-group is not active but peer is, print an | |
7007 | 'activate' */ | |
7008 | else if (!g_peer->afc[afi][safi] && peer->afc[afi][safi]) { | |
2b791107 | 7009 | vty_out(vty, " neighbor %s activate\n", addr); |
d62a17ae | 7010 | } |
7011 | } else { | |
7012 | if (peer->afc[afi][safi]) { | |
7013 | if ((afi == AFI_IP) && (safi == SAFI_UNICAST)) { | |
7014 | if (bgp_flag_check(bgp, | |
7015 | BGP_FLAG_NO_DEFAULT_IPV4)) { | |
2b791107 | 7016 | vty_out(vty, " neighbor %s activate\n", |
d62a17ae | 7017 | addr); |
7018 | } | |
7019 | } else | |
2b791107 | 7020 | vty_out(vty, " neighbor %s activate\n", addr); |
d62a17ae | 7021 | } else { |
7022 | if ((afi == AFI_IP) && (safi == SAFI_UNICAST)) { | |
7023 | if (!bgp_flag_check(bgp, | |
7024 | BGP_FLAG_NO_DEFAULT_IPV4)) { | |
2b791107 | 7025 | vty_out(vty, |
d62a17ae | 7026 | " no neighbor %s activate\n", |
7027 | addr); | |
7028 | } | |
7029 | } | |
7030 | } | |
7031 | } | |
7032 | ||
7033 | /* addpath TX knobs */ | |
7034 | if (peergroup_af_flag_check(peer, afi, safi, | |
7035 | PEER_FLAG_ADDPATH_TX_ALL_PATHS)) { | |
2b791107 | 7036 | vty_out(vty, " neighbor %s addpath-tx-all-paths\n", addr); |
d62a17ae | 7037 | } |
7038 | ||
7039 | if (peergroup_af_flag_check(peer, afi, safi, | |
7040 | PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS)) { | |
2b791107 DL |
7041 | vty_out(vty, " neighbor %s addpath-tx-bestpath-per-AS\n", |
7042 | addr); | |
d62a17ae | 7043 | } |
7044 | ||
7045 | /* ORF capability. */ | |
7046 | if (peergroup_af_flag_check(peer, afi, safi, PEER_FLAG_ORF_PREFIX_SM) | |
7047 | || peergroup_af_flag_check(peer, afi, safi, | |
7048 | PEER_FLAG_ORF_PREFIX_RM)) { | |
2b791107 | 7049 | vty_out(vty, " neighbor %s capability orf prefix-list", addr); |
d62a17ae | 7050 | |
7051 | if (peergroup_af_flag_check(peer, afi, safi, | |
7052 | PEER_FLAG_ORF_PREFIX_SM) | |
7053 | && peergroup_af_flag_check(peer, afi, safi, | |
7054 | PEER_FLAG_ORF_PREFIX_RM)) | |
7055 | vty_out(vty, " both"); | |
7056 | else if (peergroup_af_flag_check(peer, afi, safi, | |
7057 | PEER_FLAG_ORF_PREFIX_SM)) | |
7058 | vty_out(vty, " send"); | |
7059 | else | |
7060 | vty_out(vty, " receive"); | |
7061 | vty_out(vty, "\n"); | |
7062 | } | |
7063 | ||
7064 | /* Route reflector client. */ | |
7065 | if (peergroup_af_flag_check(peer, afi, safi, | |
7066 | PEER_FLAG_REFLECTOR_CLIENT)) { | |
2b791107 | 7067 | vty_out(vty, " neighbor %s route-reflector-client\n", addr); |
d62a17ae | 7068 | } |
7069 | ||
7070 | /* next-hop-self force */ | |
7071 | if (peergroup_af_flag_check(peer, afi, safi, | |
7072 | PEER_FLAG_FORCE_NEXTHOP_SELF)) { | |
2b791107 | 7073 | vty_out(vty, " neighbor %s next-hop-self force\n", addr); |
d62a17ae | 7074 | } |
7075 | ||
7076 | /* next-hop-self */ | |
7077 | if (peergroup_af_flag_check(peer, afi, safi, PEER_FLAG_NEXTHOP_SELF)) { | |
2b791107 | 7078 | vty_out(vty, " neighbor %s next-hop-self\n", addr); |
d62a17ae | 7079 | } |
7080 | ||
7081 | /* remove-private-AS */ | |
7082 | if (peergroup_af_flag_check(peer, afi, safi, | |
7083 | PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE)) { | |
2b791107 | 7084 | vty_out(vty, " neighbor %s remove-private-AS all replace-AS\n", |
d62a17ae | 7085 | addr); |
7086 | } | |
7087 | ||
7088 | else if (peergroup_af_flag_check(peer, afi, safi, | |
7089 | PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE)) { | |
2b791107 DL |
7090 | vty_out(vty, " neighbor %s remove-private-AS replace-AS\n", |
7091 | addr); | |
d62a17ae | 7092 | } |
7093 | ||
7094 | else if (peergroup_af_flag_check(peer, afi, safi, | |
7095 | PEER_FLAG_REMOVE_PRIVATE_AS_ALL)) { | |
2b791107 | 7096 | vty_out(vty, " neighbor %s remove-private-AS all\n", addr); |
d62a17ae | 7097 | } |
7098 | ||
7099 | else if (peergroup_af_flag_check(peer, afi, safi, | |
7100 | PEER_FLAG_REMOVE_PRIVATE_AS)) { | |
2b791107 | 7101 | vty_out(vty, " neighbor %s remove-private-AS\n", addr); |
d62a17ae | 7102 | } |
7103 | ||
7104 | /* as-override */ | |
7105 | if (peergroup_af_flag_check(peer, afi, safi, PEER_FLAG_AS_OVERRIDE)) { | |
2b791107 | 7106 | vty_out(vty, " neighbor %s as-override\n", addr); |
d62a17ae | 7107 | } |
7108 | ||
7109 | /* send-community print. */ | |
27c05d4d | 7110 | flag_scomm = peergroup_af_flag_check(peer, afi, safi, |
cf9ac8bf | 7111 | PEER_FLAG_SEND_COMMUNITY); |
27c05d4d | 7112 | flag_secomm = peergroup_af_flag_check(peer, afi, safi, |
cf9ac8bf | 7113 | PEER_FLAG_SEND_EXT_COMMUNITY); |
27c05d4d | 7114 | flag_slcomm = peergroup_af_flag_check(peer, afi, safi, |
cf9ac8bf | 7115 | PEER_FLAG_SEND_LARGE_COMMUNITY); |
27c05d4d PM |
7116 | |
7117 | if (!bgp_option_check(BGP_OPT_CONFIG_CISCO)) { | |
7118 | if (flag_scomm && flag_secomm && flag_slcomm) { | |
2b791107 DL |
7119 | vty_out(vty, " no neighbor %s send-community all\n", |
7120 | addr); | |
d62a17ae | 7121 | } else { |
27c05d4d | 7122 | if (flag_scomm) |
2b791107 | 7123 | vty_out(vty, |
27c05d4d | 7124 | " no neighbor %s send-community\n", |
d62a17ae | 7125 | addr); |
27c05d4d | 7126 | if (flag_secomm) |
2b791107 | 7127 | vty_out(vty, |
d62a17ae | 7128 | " no neighbor %s send-community extended\n", |
7129 | addr); | |
d62a17ae | 7130 | |
27c05d4d | 7131 | if (flag_slcomm) |
2b791107 | 7132 | vty_out(vty, |
27c05d4d PM |
7133 | " no neighbor %s send-community large\n", |
7134 | addr); | |
7135 | } | |
7136 | } else { | |
7137 | if (flag_scomm && flag_secomm && flag_slcomm) { | |
7138 | vty_out(vty, " neighbor %s send-community all\n", | |
7139 | addr); | |
7140 | } else if (flag_scomm && flag_secomm) { | |
7141 | vty_out(vty, " neighbor %s send-community both\n", | |
7142 | addr); | |
7143 | } else { | |
7144 | if (flag_scomm) | |
7145 | vty_out(vty, " neighbor %s send-community\n", | |
7146 | addr); | |
7147 | if (flag_secomm) | |
7148 | vty_out(vty, | |
7149 | " neighbor %s send-community extended\n", | |
7150 | addr); | |
7151 | if (flag_slcomm) | |
7152 | vty_out(vty, | |
7153 | " neighbor %s send-community large\n", | |
d62a17ae | 7154 | addr); |
d62a17ae | 7155 | } |
7156 | } | |
7157 | ||
7158 | /* Default information */ | |
7159 | if (peergroup_af_flag_check(peer, afi, safi, | |
598ce6bd | 7160 | PEER_FLAG_DEFAULT_ORIGINATE)) { |
2b791107 | 7161 | vty_out(vty, " neighbor %s default-originate", addr); |
598ce6bd | 7162 | |
d62a17ae | 7163 | if (peer->default_rmap[afi][safi].name) |
7164 | vty_out(vty, " route-map %s", | |
7165 | peer->default_rmap[afi][safi].name); | |
598ce6bd | 7166 | |
d62a17ae | 7167 | vty_out(vty, "\n"); |
7168 | } | |
7169 | ||
7170 | /* Soft reconfiguration inbound. */ | |
7171 | if (peergroup_af_flag_check(peer, afi, safi, PEER_FLAG_SOFT_RECONFIG)) { | |
2b791107 DL |
7172 | vty_out(vty, " neighbor %s soft-reconfiguration inbound\n", |
7173 | addr); | |
d62a17ae | 7174 | } |
7175 | ||
7176 | /* maximum-prefix. */ | |
598ce6bd PM |
7177 | if (peergroup_af_flag_check(peer, afi, safi, PEER_FLAG_MAX_PREFIX)) { |
7178 | vty_out(vty, " neighbor %s maximum-prefix %lu", addr, | |
7179 | peer->pmax[afi][safi]); | |
7180 | ||
7181 | if (peer->pmax_threshold[afi][safi] | |
7182 | != MAXIMUM_PREFIX_THRESHOLD_DEFAULT) | |
7183 | vty_out(vty, " %u", peer->pmax_threshold[afi][safi]); | |
7184 | if (peer_af_flag_check(peer, afi, safi, | |
d62a17ae | 7185 | PEER_FLAG_MAX_PREFIX_WARNING)) |
598ce6bd PM |
7186 | vty_out(vty, " warning-only"); |
7187 | if (peer->pmax_restart[afi][safi]) | |
7188 | vty_out(vty, " restart %u", | |
7189 | peer->pmax_restart[afi][safi]); | |
7190 | ||
7191 | vty_out(vty, "\n"); | |
7192 | } | |
d62a17ae | 7193 | |
7194 | /* Route server client. */ | |
7195 | if (peergroup_af_flag_check(peer, afi, safi, | |
7196 | PEER_FLAG_RSERVER_CLIENT)) { | |
2b791107 | 7197 | vty_out(vty, " neighbor %s route-server-client\n", addr); |
d62a17ae | 7198 | } |
7199 | ||
7200 | /* Nexthop-local unchanged. */ | |
7201 | if (peergroup_af_flag_check(peer, afi, safi, | |
7202 | PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED)) { | |
2b791107 | 7203 | vty_out(vty, " neighbor %s nexthop-local unchanged\n", addr); |
d62a17ae | 7204 | } |
7205 | ||
7206 | /* allowas-in <1-10> */ | |
598ce6bd PM |
7207 | if (peergroup_af_flag_check(peer, afi, safi, PEER_FLAG_ALLOWAS_IN)) { |
7208 | if (peer_af_flag_check(peer, afi, safi, | |
7209 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { | |
2b791107 | 7210 | vty_out(vty, " neighbor %s allowas-in origin\n", addr); |
598ce6bd PM |
7211 | } else if (peer->allowas_in[afi][safi] == 3) { |
7212 | vty_out(vty, " neighbor %s allowas-in\n", addr); | |
7213 | } else { | |
7214 | vty_out(vty, " neighbor %s allowas-in %d\n", addr, | |
cf9ac8bf | 7215 | peer->allowas_in[afi][safi]); |
d62a17ae | 7216 | } |
7217 | } | |
7218 | ||
7219 | /* weight */ | |
598ce6bd PM |
7220 | if (peergroup_af_flag_check(peer, afi, safi, PEER_FLAG_WEIGHT)) |
7221 | vty_out(vty, " neighbor %s weight %lu\n", addr, | |
7222 | peer->weight[afi][safi]); | |
d62a17ae | 7223 | |
7224 | /* Filter. */ | |
2b791107 | 7225 | bgp_config_write_filter(vty, peer, afi, safi); |
d62a17ae | 7226 | |
7227 | /* atribute-unchanged. */ | |
a4d82a8a | 7228 | if (peer_af_flag_check(peer, afi, safi, PEER_FLAG_AS_PATH_UNCHANGED) |
3518f352 DS |
7229 | || (safi != SAFI_EVPN |
7230 | && peer_af_flag_check(peer, afi, safi, | |
7231 | PEER_FLAG_NEXTHOP_UNCHANGED)) | |
a4d82a8a PZ |
7232 | || peer_af_flag_check(peer, afi, safi, PEER_FLAG_MED_UNCHANGED)) { |
7233 | ||
7234 | if (!peer_group_active(peer) | |
7235 | || peergroup_af_flag_check(peer, afi, safi, | |
7236 | PEER_FLAG_AS_PATH_UNCHANGED) | |
7237 | || peergroup_af_flag_check(peer, afi, safi, | |
7238 | PEER_FLAG_NEXTHOP_UNCHANGED) | |
7239 | || peergroup_af_flag_check(peer, afi, safi, | |
7240 | PEER_FLAG_MED_UNCHANGED)) { | |
8eeb0335 | 7241 | |
2b791107 | 7242 | vty_out(vty, |
d62a17ae | 7243 | " neighbor %s attribute-unchanged%s%s%s\n", |
7244 | addr, | |
60466a63 QY |
7245 | peer_af_flag_check(peer, afi, safi, |
7246 | PEER_FLAG_AS_PATH_UNCHANGED) | |
d62a17ae | 7247 | ? " as-path" |
7248 | : "", | |
60466a63 QY |
7249 | peer_af_flag_check(peer, afi, safi, |
7250 | PEER_FLAG_NEXTHOP_UNCHANGED) | |
d62a17ae | 7251 | ? " next-hop" |
7252 | : "", | |
8eeb0335 DW |
7253 | peer_af_flag_check(peer, afi, safi, |
7254 | PEER_FLAG_MED_UNCHANGED) | |
d62a17ae | 7255 | ? " med" |
7256 | : ""); | |
7257 | } | |
7258 | } | |
718e3744 | 7259 | } |
7260 | ||
2b791107 DL |
7261 | /* Address family based peer configuration display. */ |
7262 | static void bgp_config_write_family(struct vty *vty, struct bgp *bgp, afi_t afi, | |
7263 | safi_t safi) | |
d62a17ae | 7264 | { |
2b791107 DL |
7265 | struct peer *peer; |
7266 | struct peer_group *group; | |
7267 | struct listnode *node, *nnode; | |
d62a17ae | 7268 | |
d62a17ae | 7269 | |
2b791107 | 7270 | vty_frame(vty, " !\n address-family "); |
d62a17ae | 7271 | if (afi == AFI_IP) { |
7272 | if (safi == SAFI_UNICAST) | |
2b791107 | 7273 | vty_frame(vty, "ipv4 unicast"); |
d62a17ae | 7274 | else if (safi == SAFI_LABELED_UNICAST) |
2b791107 | 7275 | vty_frame(vty, "ipv4 labeled-unicast"); |
d62a17ae | 7276 | else if (safi == SAFI_MULTICAST) |
2b791107 | 7277 | vty_frame(vty, "ipv4 multicast"); |
d62a17ae | 7278 | else if (safi == SAFI_MPLS_VPN) |
2b791107 | 7279 | vty_frame(vty, "ipv4 vpn"); |
d62a17ae | 7280 | else if (safi == SAFI_ENCAP) |
2b791107 | 7281 | vty_frame(vty, "ipv4 encap"); |
7c40bf39 | 7282 | else if (safi == SAFI_FLOWSPEC) |
7283 | vty_frame(vty, "ipv4 flowspec"); | |
d62a17ae | 7284 | } else if (afi == AFI_IP6) { |
7285 | if (safi == SAFI_UNICAST) | |
2b791107 | 7286 | vty_frame(vty, "ipv6 unicast"); |
d62a17ae | 7287 | else if (safi == SAFI_LABELED_UNICAST) |
2b791107 | 7288 | vty_frame(vty, "ipv6 labeled-unicast"); |
d62a17ae | 7289 | else if (safi == SAFI_MULTICAST) |
2b791107 | 7290 | vty_frame(vty, "ipv6 multicast"); |
d62a17ae | 7291 | else if (safi == SAFI_MPLS_VPN) |
2b791107 | 7292 | vty_frame(vty, "ipv6 vpn"); |
d62a17ae | 7293 | else if (safi == SAFI_ENCAP) |
2b791107 | 7294 | vty_frame(vty, "ipv6 encap"); |
7c40bf39 | 7295 | else if (safi == SAFI_FLOWSPEC) |
7296 | vty_frame(vty, "ipv6 flowspec"); | |
d62a17ae | 7297 | } else if (afi == AFI_L2VPN) { |
7298 | if (safi == SAFI_EVPN) | |
2b791107 | 7299 | vty_frame(vty, "l2vpn evpn"); |
d62a17ae | 7300 | } |
2b791107 | 7301 | vty_frame(vty, "\n"); |
718e3744 | 7302 | |
2b791107 | 7303 | bgp_config_write_distance(vty, bgp, afi, safi); |
718e3744 | 7304 | |
2b791107 | 7305 | bgp_config_write_network(vty, bgp, afi, safi); |
734b349e | 7306 | |
2b791107 | 7307 | bgp_config_write_redistribute(vty, bgp, afi, safi); |
718e3744 | 7308 | |
d62a17ae | 7309 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) |
2b791107 | 7310 | bgp_config_write_peer_af(vty, bgp, group->conf, afi, safi); |
400b1fad | 7311 | |
d62a17ae | 7312 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { |
7313 | /* Skip dynamic neighbors. */ | |
7314 | if (peer_dynamic_neighbor(peer)) | |
7315 | continue; | |
f14e6fdb | 7316 | |
d62a17ae | 7317 | /* Do not display doppelganger peers */ |
7318 | if (CHECK_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE)) | |
2b791107 | 7319 | bgp_config_write_peer_af(vty, bgp, peer, afi, safi); |
d62a17ae | 7320 | } |
165b5fff | 7321 | |
2b791107 DL |
7322 | bgp_config_write_maxpaths(vty, bgp, afi, safi); |
7323 | bgp_config_write_table_map(vty, bgp, afi, safi); | |
165b5fff | 7324 | |
d62a17ae | 7325 | if (safi == SAFI_EVPN) |
2b791107 | 7326 | bgp_config_write_evpn_info(vty, bgp, afi, safi); |
718e3744 | 7327 | |
4762c213 PG |
7328 | if (safi == SAFI_FLOWSPEC) |
7329 | bgp_fs_config_write_pbr(vty, bgp, afi, safi); | |
7330 | ||
b9c7bc5a PZ |
7331 | if (safi == SAFI_UNICAST) { |
7332 | bgp_vpn_policy_config_write_afi(vty, bgp, afi); | |
7333 | if (CHECK_FLAG(bgp->af_flags[afi][safi], | |
7334 | BGP_CONFIG_VRF_TO_MPLSVPN_EXPORT)) { | |
ddb5b488 | 7335 | |
b9c7bc5a PZ |
7336 | vty_out(vty, " export vpn\n"); |
7337 | } | |
7338 | if (CHECK_FLAG(bgp->af_flags[afi][safi], | |
7339 | BGP_CONFIG_MPLSVPN_TO_VRF_IMPORT)) { | |
7340 | ||
7341 | vty_out(vty, " import vpn\n"); | |
7342 | } | |
12a844a5 DS |
7343 | if (CHECK_FLAG(bgp->af_flags[afi][safi], |
7344 | BGP_CONFIG_VRF_TO_VRF_IMPORT)) { | |
7345 | struct listnode *node; | |
7346 | char *name; | |
7347 | ||
7348 | for (ALL_LIST_ELEMENTS_RO( | |
7349 | bgp->vpn_policy[afi].import_vrf, node, | |
7350 | name)) | |
7351 | vty_out(vty, " import vrf %s\n", name); | |
7352 | } | |
ddb5b488 PZ |
7353 | } |
7354 | ||
2b791107 | 7355 | vty_endframe(vty, " exit-address-family\n"); |
718e3744 | 7356 | } |
7357 | ||
47cbc09b PM |
7358 | /* clang-format off */ |
7359 | #if defined(VERSION_TYPE_DEV) && CONFDATE > 20180517 | |
7360 | CPP_NOTICE("bgpd: remove 'bgp enforce-first-as' config migration from bgp_config_write") | |
7361 | #endif | |
7362 | /* clang-format on */ | |
7363 | ||
d62a17ae | 7364 | int bgp_config_write(struct vty *vty) |
718e3744 | 7365 | { |
d62a17ae | 7366 | int write = 0; |
7367 | struct bgp *bgp; | |
7368 | struct peer_group *group; | |
7369 | struct peer *peer; | |
7370 | struct listnode *node, *nnode; | |
7371 | struct listnode *mnode, *mnnode; | |
718e3744 | 7372 | |
d62a17ae | 7373 | /* BGP Multiple instance. */ |
7374 | if (!bgp_option_check(BGP_OPT_MULTIPLE_INSTANCE)) { | |
7375 | vty_out(vty, "no bgp multiple-instance\n"); | |
7376 | write++; | |
7377 | } | |
718e3744 | 7378 | |
d62a17ae | 7379 | /* BGP Config type. */ |
7380 | if (bgp_option_check(BGP_OPT_CONFIG_CISCO)) { | |
7381 | vty_out(vty, "bgp config-type cisco\n"); | |
7382 | write++; | |
7383 | } | |
718e3744 | 7384 | |
d62a17ae | 7385 | if (bm->rmap_update_timer != RMAP_DEFAULT_UPDATE_TIMER) |
7386 | vty_out(vty, "bgp route-map delay-timer %u\n", | |
7387 | bm->rmap_update_timer); | |
7388 | ||
2b791107 DL |
7389 | if (write) |
7390 | vty_out(vty, "!\n"); | |
7391 | ||
d62a17ae | 7392 | /* BGP configuration. */ |
7393 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
0b5131c9 MK |
7394 | |
7395 | /* skip all auto created vrf as they dont have user config */ | |
7396 | if (CHECK_FLAG(bgp->vrf_flags, BGP_VRF_AUTO)) | |
7397 | continue; | |
7398 | ||
47cbc09b PM |
7399 | /* Migrate deprecated 'bgp enforce-first-as' |
7400 | * config to 'neighbor * enforce-first-as' configs | |
7401 | */ | |
7402 | if (bgp_flag_check(bgp, BGP_FLAG_ENFORCE_FIRST_AS)) { | |
7403 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
7404 | peer_flag_set(peer, PEER_FLAG_ENFORCE_FIRST_AS); | |
7405 | bgp_flag_unset(bgp, BGP_FLAG_ENFORCE_FIRST_AS); | |
7406 | } | |
7407 | ||
d62a17ae | 7408 | /* Router bgp ASN */ |
7409 | vty_out(vty, "router bgp %u", bgp->as); | |
7410 | ||
7411 | if (bgp_option_check(BGP_OPT_MULTIPLE_INSTANCE)) { | |
7412 | if (bgp->name) | |
7413 | vty_out(vty, " %s %s", | |
7414 | (bgp->inst_type | |
7415 | == BGP_INSTANCE_TYPE_VIEW) | |
7416 | ? "view" | |
7417 | : "vrf", | |
7418 | bgp->name); | |
7419 | } | |
7420 | vty_out(vty, "\n"); | |
7421 | ||
7422 | /* No Synchronization */ | |
7423 | if (bgp_option_check(BGP_OPT_CONFIG_CISCO)) | |
7424 | vty_out(vty, " no synchronization\n"); | |
7425 | ||
7426 | /* BGP fast-external-failover. */ | |
7427 | if (CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) | |
7428 | vty_out(vty, " no bgp fast-external-failover\n"); | |
7429 | ||
7430 | /* BGP router ID. */ | |
7431 | if (bgp->router_id_static.s_addr != 0) | |
7432 | vty_out(vty, " bgp router-id %s\n", | |
7433 | inet_ntoa(bgp->router_id_static)); | |
7434 | ||
7435 | /* BGP log-neighbor-changes. */ | |
7436 | if (!!bgp_flag_check(bgp, BGP_FLAG_LOG_NEIGHBOR_CHANGES) | |
7437 | != DFLT_BGP_LOG_NEIGHBOR_CHANGES) | |
7438 | vty_out(vty, " %sbgp log-neighbor-changes\n", | |
7439 | bgp_flag_check(bgp, | |
7440 | BGP_FLAG_LOG_NEIGHBOR_CHANGES) | |
7441 | ? "" | |
7442 | : "no "); | |
7443 | ||
7444 | /* BGP configuration. */ | |
7445 | if (bgp_flag_check(bgp, BGP_FLAG_ALWAYS_COMPARE_MED)) | |
7446 | vty_out(vty, " bgp always-compare-med\n"); | |
7447 | ||
7448 | /* BGP default ipv4-unicast. */ | |
7449 | if (bgp_flag_check(bgp, BGP_FLAG_NO_DEFAULT_IPV4)) | |
7450 | vty_out(vty, " no bgp default ipv4-unicast\n"); | |
7451 | ||
7452 | /* BGP default local-preference. */ | |
7453 | if (bgp->default_local_pref != BGP_DEFAULT_LOCAL_PREF) | |
7454 | vty_out(vty, " bgp default local-preference %u\n", | |
7455 | bgp->default_local_pref); | |
7456 | ||
7457 | /* BGP default show-hostname */ | |
7458 | if (!!bgp_flag_check(bgp, BGP_FLAG_SHOW_HOSTNAME) | |
7459 | != DFLT_BGP_SHOW_HOSTNAME) | |
7460 | vty_out(vty, " %sbgp default show-hostname\n", | |
7461 | bgp_flag_check(bgp, BGP_FLAG_SHOW_HOSTNAME) | |
7462 | ? "" | |
7463 | : "no "); | |
7464 | ||
7465 | /* BGP default subgroup-pkt-queue-max. */ | |
7466 | if (bgp->default_subgroup_pkt_queue_max | |
7467 | != BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX) | |
7468 | vty_out(vty, " bgp default subgroup-pkt-queue-max %u\n", | |
7469 | bgp->default_subgroup_pkt_queue_max); | |
7470 | ||
7471 | /* BGP client-to-client reflection. */ | |
7472 | if (bgp_flag_check(bgp, BGP_FLAG_NO_CLIENT_TO_CLIENT)) | |
7473 | vty_out(vty, " no bgp client-to-client reflection\n"); | |
7474 | ||
7475 | /* BGP cluster ID. */ | |
7476 | if (CHECK_FLAG(bgp->config, BGP_CONFIG_CLUSTER_ID)) | |
7477 | vty_out(vty, " bgp cluster-id %s\n", | |
7478 | inet_ntoa(bgp->cluster_id)); | |
7479 | ||
7480 | /* Disable ebgp connected nexthop check */ | |
7481 | if (bgp_flag_check(bgp, BGP_FLAG_DISABLE_NH_CONNECTED_CHK)) | |
7482 | vty_out(vty, | |
7483 | " bgp disable-ebgp-connected-route-check\n"); | |
7484 | ||
7485 | /* Confederation identifier*/ | |
7486 | if (CHECK_FLAG(bgp->config, BGP_CONFIG_CONFEDERATION)) | |
7487 | vty_out(vty, " bgp confederation identifier %i\n", | |
7488 | bgp->confed_id); | |
7489 | ||
7490 | /* Confederation peer */ | |
7491 | if (bgp->confed_peers_cnt > 0) { | |
7492 | int i; | |
7493 | ||
7494 | vty_out(vty, " bgp confederation peers"); | |
7495 | ||
7496 | for (i = 0; i < bgp->confed_peers_cnt; i++) | |
7497 | vty_out(vty, " %u", bgp->confed_peers[i]); | |
7498 | ||
7499 | vty_out(vty, "\n"); | |
7500 | } | |
5fe9f963 | 7501 | |
d62a17ae | 7502 | /* BGP deterministic-med. */ |
7503 | if (!!bgp_flag_check(bgp, BGP_FLAG_DETERMINISTIC_MED) | |
7504 | != DFLT_BGP_DETERMINISTIC_MED) | |
7505 | vty_out(vty, " %sbgp deterministic-med\n", | |
7506 | bgp_flag_check(bgp, BGP_FLAG_DETERMINISTIC_MED) | |
7507 | ? "" | |
7508 | : "no "); | |
7509 | ||
7510 | /* BGP update-delay. */ | |
7511 | bgp_config_write_update_delay(vty, bgp); | |
7512 | ||
7513 | if (bgp->v_maxmed_onstartup | |
7514 | != BGP_MAXMED_ONSTARTUP_UNCONFIGURED) { | |
7515 | vty_out(vty, " bgp max-med on-startup %u", | |
7516 | bgp->v_maxmed_onstartup); | |
7517 | if (bgp->maxmed_onstartup_value | |
7518 | != BGP_MAXMED_VALUE_DEFAULT) | |
7519 | vty_out(vty, " %u", | |
7520 | bgp->maxmed_onstartup_value); | |
7521 | vty_out(vty, "\n"); | |
7522 | } | |
7523 | if (bgp->v_maxmed_admin != BGP_MAXMED_ADMIN_UNCONFIGURED) { | |
7524 | vty_out(vty, " bgp max-med administrative"); | |
7525 | if (bgp->maxmed_admin_value != BGP_MAXMED_VALUE_DEFAULT) | |
7526 | vty_out(vty, " %u", bgp->maxmed_admin_value); | |
7527 | vty_out(vty, "\n"); | |
7528 | } | |
718e3744 | 7529 | |
d62a17ae | 7530 | /* write quanta */ |
7531 | bgp_config_write_wpkt_quanta(vty, bgp); | |
555e09d4 QY |
7532 | /* read quanta */ |
7533 | bgp_config_write_rpkt_quanta(vty, bgp); | |
d62a17ae | 7534 | |
7535 | /* coalesce time */ | |
7536 | bgp_config_write_coalesce_time(vty, bgp); | |
7537 | ||
7538 | /* BGP graceful-restart. */ | |
7539 | if (bgp->stalepath_time != BGP_DEFAULT_STALEPATH_TIME) | |
7540 | vty_out(vty, | |
7541 | " bgp graceful-restart stalepath-time %u\n", | |
7542 | bgp->stalepath_time); | |
7543 | if (bgp->restart_time != BGP_DEFAULT_RESTART_TIME) | |
7544 | vty_out(vty, " bgp graceful-restart restart-time %u\n", | |
7545 | bgp->restart_time); | |
7546 | if (bgp_flag_check(bgp, BGP_FLAG_GRACEFUL_RESTART)) | |
7547 | vty_out(vty, " bgp graceful-restart\n"); | |
7548 | ||
7f323236 DW |
7549 | /* BGP graceful-shutdown */ |
7550 | if (bgp_flag_check(bgp, BGP_FLAG_GRACEFUL_SHUTDOWN)) | |
7551 | vty_out(vty, " bgp graceful-shutdown\n"); | |
7552 | ||
d62a17ae | 7553 | /* BGP graceful-restart Preserve State F bit. */ |
7554 | if (bgp_flag_check(bgp, BGP_FLAG_GR_PRESERVE_FWD)) | |
7555 | vty_out(vty, | |
7556 | " bgp graceful-restart preserve-fw-state\n"); | |
7557 | ||
7558 | /* BGP bestpath method. */ | |
7559 | if (bgp_flag_check(bgp, BGP_FLAG_ASPATH_IGNORE)) | |
7560 | vty_out(vty, " bgp bestpath as-path ignore\n"); | |
7561 | if (bgp_flag_check(bgp, BGP_FLAG_ASPATH_CONFED)) | |
7562 | vty_out(vty, " bgp bestpath as-path confed\n"); | |
7563 | ||
7564 | if (bgp_flag_check(bgp, BGP_FLAG_ASPATH_MULTIPATH_RELAX)) { | |
7565 | if (bgp_flag_check(bgp, | |
7566 | BGP_FLAG_MULTIPATH_RELAX_AS_SET)) { | |
7567 | vty_out(vty, | |
7568 | " bgp bestpath as-path multipath-relax as-set\n"); | |
7569 | } else { | |
7570 | vty_out(vty, | |
7571 | " bgp bestpath as-path multipath-relax\n"); | |
7572 | } | |
7573 | } | |
718e3744 | 7574 | |
d62a17ae | 7575 | if (bgp_flag_check(bgp, BGP_FLAG_RR_ALLOW_OUTBOUND_POLICY)) { |
7576 | vty_out(vty, | |
7577 | " bgp route-reflector allow-outbound-policy\n"); | |
7578 | } | |
7579 | if (bgp_flag_check(bgp, BGP_FLAG_COMPARE_ROUTER_ID)) | |
7580 | vty_out(vty, " bgp bestpath compare-routerid\n"); | |
7581 | if (bgp_flag_check(bgp, BGP_FLAG_MED_CONFED) | |
7582 | || bgp_flag_check(bgp, BGP_FLAG_MED_MISSING_AS_WORST)) { | |
7583 | vty_out(vty, " bgp bestpath med"); | |
7584 | if (bgp_flag_check(bgp, BGP_FLAG_MED_CONFED)) | |
7585 | vty_out(vty, " confed"); | |
7586 | if (bgp_flag_check(bgp, BGP_FLAG_MED_MISSING_AS_WORST)) | |
7587 | vty_out(vty, " missing-as-worst"); | |
7588 | vty_out(vty, "\n"); | |
7589 | } | |
718e3744 | 7590 | |
d62a17ae | 7591 | /* BGP network import check. */ |
7592 | if (!!bgp_flag_check(bgp, BGP_FLAG_IMPORT_CHECK) | |
7593 | != DFLT_BGP_IMPORT_CHECK) | |
7594 | vty_out(vty, " %sbgp network import-check\n", | |
7595 | bgp_flag_check(bgp, BGP_FLAG_IMPORT_CHECK) | |
7596 | ? "" | |
7597 | : "no "); | |
7598 | ||
7599 | /* BGP flag dampening. */ | |
7600 | if (CHECK_FLAG(bgp->af_flags[AFI_IP][SAFI_UNICAST], | |
7601 | BGP_CONFIG_DAMPENING)) | |
7602 | bgp_config_write_damp(vty); | |
7603 | ||
7604 | /* BGP timers configuration. */ | |
7605 | if (bgp->default_keepalive != BGP_DEFAULT_KEEPALIVE | |
7606 | && bgp->default_holdtime != BGP_DEFAULT_HOLDTIME) | |
7607 | vty_out(vty, " timers bgp %u %u\n", | |
7608 | bgp->default_keepalive, bgp->default_holdtime); | |
7609 | ||
7610 | /* peer-group */ | |
7611 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
7612 | bgp_config_write_peer_global(vty, bgp, group->conf); | |
7613 | } | |
7614 | ||
7615 | /* Normal neighbor configuration. */ | |
7616 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
7617 | if (CHECK_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE)) | |
7618 | bgp_config_write_peer_global(vty, bgp, peer); | |
7619 | } | |
718e3744 | 7620 | |
d62a17ae | 7621 | /* listen range and limit for dynamic BGP neighbors */ |
7622 | bgp_config_write_listen(vty, bgp); | |
f14e6fdb | 7623 | |
76af525b PM |
7624 | /* |
7625 | * BGP default autoshutdown neighbors | |
7626 | * | |
7627 | * This must be placed after any peer and peer-group | |
7628 | * configuration, to avoid setting all peers to shutdown after | |
7629 | * a daemon restart, which is undesired behavior. (see #2286) | |
7630 | */ | |
7631 | if (bgp->autoshutdown) | |
7632 | vty_out(vty, " bgp default shutdown\n"); | |
7633 | ||
d62a17ae | 7634 | /* No auto-summary */ |
7635 | if (bgp_option_check(BGP_OPT_CONFIG_CISCO)) | |
7636 | vty_out(vty, " no auto-summary\n"); | |
718e3744 | 7637 | |
d62a17ae | 7638 | /* IPv4 unicast configuration. */ |
2b791107 | 7639 | bgp_config_write_family(vty, bgp, AFI_IP, SAFI_UNICAST); |
0b960b4d | 7640 | |
d62a17ae | 7641 | /* IPv4 multicast configuration. */ |
2b791107 | 7642 | bgp_config_write_family(vty, bgp, AFI_IP, SAFI_MULTICAST); |
718e3744 | 7643 | |
d62a17ae | 7644 | /* IPv4 labeled-unicast configuration. */ |
2b791107 | 7645 | bgp_config_write_family(vty, bgp, AFI_IP, SAFI_LABELED_UNICAST); |
f51bae9c | 7646 | |
d62a17ae | 7647 | /* IPv4 VPN configuration. */ |
2b791107 | 7648 | bgp_config_write_family(vty, bgp, AFI_IP, SAFI_MPLS_VPN); |
718e3744 | 7649 | |
d62a17ae | 7650 | /* ENCAPv4 configuration. */ |
2b791107 | 7651 | bgp_config_write_family(vty, bgp, AFI_IP, SAFI_ENCAP); |
8b1fb8be | 7652 | |
7c40bf39 | 7653 | /* FLOWSPEC v4 configuration. */ |
7654 | bgp_config_write_family(vty, bgp, AFI_IP, SAFI_FLOWSPEC); | |
7655 | ||
d62a17ae | 7656 | /* IPv6 unicast configuration. */ |
2b791107 | 7657 | bgp_config_write_family(vty, bgp, AFI_IP6, SAFI_UNICAST); |
718e3744 | 7658 | |
d62a17ae | 7659 | /* IPv6 multicast configuration. */ |
2b791107 | 7660 | bgp_config_write_family(vty, bgp, AFI_IP6, SAFI_MULTICAST); |
37a217a5 | 7661 | |
d62a17ae | 7662 | /* IPv6 labeled-unicast configuration. */ |
2b791107 DL |
7663 | bgp_config_write_family(vty, bgp, AFI_IP6, |
7664 | SAFI_LABELED_UNICAST); | |
f51bae9c | 7665 | |
d62a17ae | 7666 | /* IPv6 VPN configuration. */ |
2b791107 | 7667 | bgp_config_write_family(vty, bgp, AFI_IP6, SAFI_MPLS_VPN); |
8ecd3266 | 7668 | |
d62a17ae | 7669 | /* ENCAPv6 configuration. */ |
2b791107 | 7670 | bgp_config_write_family(vty, bgp, AFI_IP6, SAFI_ENCAP); |
8b1fb8be | 7671 | |
7c40bf39 | 7672 | /* FLOWSPEC v6 configuration. */ |
7673 | bgp_config_write_family(vty, bgp, AFI_IP6, SAFI_FLOWSPEC); | |
7674 | ||
d62a17ae | 7675 | /* EVPN configuration. */ |
2b791107 | 7676 | bgp_config_write_family(vty, bgp, AFI_L2VPN, SAFI_EVPN); |
3d6c0dfa | 7677 | |
65efcfce | 7678 | #if ENABLE_BGP_VNC |
2b791107 | 7679 | bgp_rfapi_cfg_write(vty, bgp); |
65efcfce LB |
7680 | #endif |
7681 | ||
2b791107 | 7682 | vty_out(vty, "!\n"); |
d62a17ae | 7683 | } |
2b791107 | 7684 | return 0; |
718e3744 | 7685 | } |
7686 | ||
d62a17ae | 7687 | void bgp_master_init(struct thread_master *master) |
718e3744 | 7688 | { |
d62a17ae | 7689 | qobj_init(); |
0e64d123 | 7690 | |
d62a17ae | 7691 | memset(&bgp_master, 0, sizeof(struct bgp_master)); |
718e3744 | 7692 | |
d62a17ae | 7693 | bm = &bgp_master; |
7694 | bm->bgp = list_new(); | |
7695 | bm->listen_sockets = list_new(); | |
7696 | bm->port = BGP_PORT_DEFAULT; | |
7697 | bm->master = master; | |
7698 | bm->start_time = bgp_clock(); | |
7699 | bm->t_rmap_update = NULL; | |
7700 | bm->rmap_update_timer = RMAP_DEFAULT_UPDATE_TIMER; | |
97b4a0ec | 7701 | bm->terminating = false; |
495f0b13 | 7702 | |
d62a17ae | 7703 | bgp_process_queue_init(); |
b8fd6a15 | 7704 | |
e9eb5f63 | 7705 | /* init the rd id space. |
7706 | assign 0th index in the bitfield, | |
523cafc4 | 7707 | so that we start with id 1 |
7708 | */ | |
e9eb5f63 | 7709 | bf_init(bm->rd_idspace, UINT16_MAX); |
7710 | bf_assign_zero_index(bm->rd_idspace); | |
7711 | ||
d62a17ae | 7712 | /* Enable multiple instances by default. */ |
7713 | bgp_option_set(BGP_OPT_MULTIPLE_INSTANCE); | |
19df7279 | 7714 | |
955bfd98 | 7715 | /* mpls label dynamic allocation pool */ |
e70e9f8e | 7716 | bgp_lp_init(bm->master, &bm->labelpool); |
955bfd98 | 7717 | |
d62a17ae | 7718 | QOBJ_REG(bm, bgp_master); |
718e3744 | 7719 | } |
200df115 | 7720 | |
ad4cbda1 | 7721 | /* |
009b18fc | 7722 | * Free up connected routes and interfaces for a BGP instance. Invoked upon |
7723 | * instance delete (non-default only) or BGP exit. | |
ad4cbda1 | 7724 | */ |
d62a17ae | 7725 | static void bgp_if_finish(struct bgp *bgp) |
ad4cbda1 | 7726 | { |
f4e14fdb | 7727 | struct vrf *vrf = vrf_lookup_by_id(bgp->vrf_id); |
d62a17ae | 7728 | struct interface *ifp; |
7729 | ||
f4e14fdb | 7730 | if (bgp->inst_type == BGP_INSTANCE_TYPE_VIEW || !vrf) |
d62a17ae | 7731 | return; |
ad4cbda1 | 7732 | |
451fda4f | 7733 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 7734 | struct listnode *c_node, *c_nnode; |
7735 | struct connected *c; | |
ad4cbda1 | 7736 | |
d62a17ae | 7737 | for (ALL_LIST_ELEMENTS(ifp->connected, c_node, c_nnode, c)) |
7738 | bgp_connected_delete(bgp, c); | |
7739 | } | |
ad4cbda1 | 7740 | } |
6b0655a2 | 7741 | |
d62a17ae | 7742 | static void bgp_viewvrf_autocomplete(vector comps, struct cmd_token *token) |
18c57037 | 7743 | { |
d62a17ae | 7744 | struct vrf *vrf = NULL; |
7745 | struct listnode *next; | |
7746 | struct bgp *bgp; | |
18c57037 | 7747 | |
a2addae8 | 7748 | RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) { |
d62a17ae | 7749 | if (vrf->vrf_id != VRF_DEFAULT) |
7750 | vector_set(comps, XSTRDUP(MTYPE_COMPLETION, vrf->name)); | |
7751 | } | |
18c57037 | 7752 | |
d62a17ae | 7753 | for (ALL_LIST_ELEMENTS_RO(bm->bgp, next, bgp)) { |
7754 | if (bgp->inst_type != BGP_INSTANCE_TYPE_VIEW) | |
7755 | continue; | |
18c57037 | 7756 | |
d62a17ae | 7757 | vector_set(comps, XSTRDUP(MTYPE_COMPLETION, bgp->name)); |
7758 | } | |
18c57037 DS |
7759 | } |
7760 | ||
7761 | static const struct cmd_variable_handler bgp_viewvrf_var_handlers[] = { | |
d62a17ae | 7762 | {.tokenname = "VIEWVRFNAME", .completions = bgp_viewvrf_autocomplete}, |
7763 | {.completions = NULL}, | |
18c57037 DS |
7764 | }; |
7765 | ||
da22432d | 7766 | static void bgp_pthreads_init() |
2d4ee774 | 7767 | { |
0ca8b79f QY |
7768 | frr_pthread_init(); |
7769 | ||
a715eab3 QY |
7770 | struct frr_pthread_attr io = { |
7771 | .id = PTHREAD_IO, | |
7772 | .start = frr_pthread_attr_default.start, | |
7773 | .stop = frr_pthread_attr_default.stop, | |
a715eab3 QY |
7774 | }; |
7775 | struct frr_pthread_attr ka = { | |
7776 | .id = PTHREAD_KEEPALIVES, | |
7777 | .start = bgp_keepalives_start, | |
7778 | .stop = bgp_keepalives_stop, | |
a715eab3 | 7779 | }; |
d8a8a8de QY |
7780 | frr_pthread_new(&io, "BGP I/O thread"); |
7781 | frr_pthread_new(&ka, "BGP Keepalives thread"); | |
419dfe6a QY |
7782 | } |
7783 | ||
7784 | void bgp_pthreads_run() | |
7785 | { | |
a715eab3 QY |
7786 | struct frr_pthread *io = frr_pthread_get(PTHREAD_IO); |
7787 | struct frr_pthread *ka = frr_pthread_get(PTHREAD_KEEPALIVES); | |
424ab01d | 7788 | |
a715eab3 QY |
7789 | frr_pthread_run(io, NULL); |
7790 | frr_pthread_run(ka, NULL); | |
88b24dee | 7791 | |
a715eab3 QY |
7792 | /* Wait until threads are ready. */ |
7793 | frr_pthread_wait_running(io); | |
7794 | frr_pthread_wait_running(ka); | |
2d4ee774 QY |
7795 | } |
7796 | ||
7797 | void bgp_pthreads_finish() | |
7798 | { | |
0ca8b79f QY |
7799 | frr_pthread_stop_all(); |
7800 | frr_pthread_finish(); | |
2d4ee774 QY |
7801 | } |
7802 | ||
d62a17ae | 7803 | void bgp_init(void) |
718e3744 | 7804 | { |
fc9a856f | 7805 | |
d62a17ae | 7806 | /* allocates some vital data structures used by peer commands in |
7807 | * vty_init */ | |
718e3744 | 7808 | |
419dfe6a QY |
7809 | /* pre-init pthreads */ |
7810 | bgp_pthreads_init(); | |
7811 | ||
d62a17ae | 7812 | /* Init zebra. */ |
7813 | bgp_zebra_init(bm->master); | |
718e3744 | 7814 | |
65efcfce | 7815 | #if ENABLE_BGP_VNC |
d62a17ae | 7816 | vnc_zebra_init(bm->master); |
65efcfce LB |
7817 | #endif |
7818 | ||
d62a17ae | 7819 | /* BGP VTY commands installation. */ |
7820 | bgp_vty_init(); | |
7821 | ||
7822 | /* BGP inits. */ | |
7823 | bgp_attr_init(); | |
7824 | bgp_debug_init(); | |
7825 | bgp_dump_init(); | |
7826 | bgp_route_init(); | |
7827 | bgp_route_map_init(); | |
7828 | bgp_scan_vty_init(); | |
7829 | bgp_mplsvpn_init(); | |
65efcfce | 7830 | #if ENABLE_BGP_VNC |
d62a17ae | 7831 | rfapi_init(); |
65efcfce | 7832 | #endif |
d62a17ae | 7833 | bgp_ethernetvpn_init(); |
7c40bf39 | 7834 | bgp_flowspec_vty_init(); |
d62a17ae | 7835 | |
7836 | /* Access list initialize. */ | |
7837 | access_list_init(); | |
7838 | access_list_add_hook(peer_distribute_update); | |
7839 | access_list_delete_hook(peer_distribute_update); | |
7840 | ||
7841 | /* Filter list initialize. */ | |
7842 | bgp_filter_init(); | |
7843 | as_list_add_hook(peer_aslist_add); | |
7844 | as_list_delete_hook(peer_aslist_del); | |
7845 | ||
7846 | /* Prefix list initialize.*/ | |
7847 | prefix_list_init(); | |
7848 | prefix_list_add_hook(peer_prefix_list_update); | |
7849 | prefix_list_delete_hook(peer_prefix_list_update); | |
7850 | ||
7851 | /* Community list initialize. */ | |
7852 | bgp_clist = community_list_init(); | |
7853 | ||
7854 | /* BFD init */ | |
7855 | bgp_bfd_init(); | |
7856 | ||
7857 | cmd_variable_handler_register(bgp_viewvrf_var_handlers); | |
7858 | } | |
7859 | ||
7860 | void bgp_terminate(void) | |
7861 | { | |
7862 | struct bgp *bgp; | |
7863 | struct peer *peer; | |
7864 | struct listnode *node, *nnode; | |
7865 | struct listnode *mnode, *mnnode; | |
7866 | ||
7867 | QOBJ_UNREG(bm); | |
7868 | ||
7869 | /* Close the listener sockets first as this prevents peers from | |
7870 | * attempting | |
7871 | * to reconnect on receiving the peer unconfig message. In the presence | |
7872 | * of a large number of peers this will ensure that no peer is left with | |
7873 | * a dangling connection | |
7874 | */ | |
7875 | /* reverse bgp_master_init */ | |
7876 | bgp_close(); | |
c3004bc4 | 7877 | |
d62a17ae | 7878 | if (bm->listen_sockets) |
acdf5e25 | 7879 | list_delete_and_null(&bm->listen_sockets); |
d62a17ae | 7880 | |
7881 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) | |
7882 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
7883 | if (peer->status == Established | |
7884 | || peer->status == OpenSent | |
7885 | || peer->status == OpenConfirm) | |
7886 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
7887 | BGP_NOTIFY_CEASE_PEER_UNCONFIG); | |
7888 | ||
e208c8f9 DS |
7889 | if (bm->process_main_queue) |
7890 | work_queue_free_and_null(&bm->process_main_queue); | |
d62a17ae | 7891 | |
7892 | if (bm->t_rmap_update) | |
7893 | BGP_TIMER_OFF(bm->t_rmap_update); | |
955bfd98 | 7894 | |
e70e9f8e | 7895 | bgp_lp_finish(); |
545acafb | 7896 | } |