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