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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" |
73d70fa6 DL |
88 | |
89 | DEFINE_MTYPE_STATIC(BGPD, PEER_TX_SHUTDOWN_MSG, "Peer shutdown message (TX)"); | |
19df7279 DL |
90 | DEFINE_QOBJ_TYPE(bgp_master) |
91 | DEFINE_QOBJ_TYPE(bgp) | |
92 | DEFINE_QOBJ_TYPE(peer) | |
93 | ||
718e3744 | 94 | /* BGP process wide configuration. */ |
95 | static struct bgp_master bgp_master; | |
96 | ||
97 | /* BGP process wide configuration pointer to export. */ | |
98 | struct bgp_master *bm; | |
99 | ||
100 | /* BGP community-list. */ | |
101 | struct community_list_handler *bgp_clist; | |
6b0655a2 | 102 | |
37fe7731 DS |
103 | unsigned int multipath_num = MULTIPATH_NUM; |
104 | ||
d62a17ae | 105 | static void bgp_if_finish(struct bgp *bgp); |
cc32742c | 106 | static void peer_drop_dynamic_neighbor(struct peer *peer); |
b33adb7c | 107 | |
ad4cbda1 | 108 | extern struct zclient *zclient; |
1ff9a340 | 109 | |
e5619c28 PG |
110 | /* handle main socket creation or deletion */ |
111 | static int bgp_check_main_socket(bool create, struct bgp *bgp) | |
112 | { | |
113 | static int bgp_server_main_created; | |
e5619c28 | 114 | |
e5619c28 PG |
115 | if (create == true) { |
116 | if (bgp_server_main_created) | |
117 | return 0; | |
118 | if (bgp_socket(bgp, bm->port, bm->address) < 0) | |
119 | return BGP_ERR_INVALID_VALUE; | |
120 | bgp_server_main_created = 1; | |
121 | return 0; | |
122 | } | |
123 | if (!bgp_server_main_created) | |
124 | return 0; | |
e5619c28 PG |
125 | bgp_close(); |
126 | bgp_server_main_created = 0; | |
127 | return 0; | |
128 | } | |
129 | ||
d62a17ae | 130 | void bgp_session_reset(struct peer *peer) |
1ff9a340 | 131 | { |
d62a17ae | 132 | if (peer->doppelganger && (peer->doppelganger->status != Deleted) |
133 | && !(CHECK_FLAG(peer->doppelganger->flags, PEER_FLAG_CONFIG_NODE))) | |
134 | peer_delete(peer->doppelganger); | |
1ff9a340 | 135 | |
d62a17ae | 136 | BGP_EVENT_ADD(peer, BGP_Stop); |
1ff9a340 DS |
137 | } |
138 | ||
139 | /* | |
140 | * During session reset, we may delete the doppelganger peer, which would | |
141 | * be the next node to the current node. If the session reset was invoked | |
142 | * during walk of peer list, we would end up accessing the freed next | |
143 | * node. This function moves the next node along. | |
144 | */ | |
d62a17ae | 145 | static void bgp_session_reset_safe(struct peer *peer, struct listnode **nnode) |
1ff9a340 | 146 | { |
d62a17ae | 147 | struct listnode *n; |
148 | struct peer *npeer; | |
1ff9a340 | 149 | |
d62a17ae | 150 | n = (nnode) ? *nnode : NULL; |
151 | npeer = (n) ? listgetdata(n) : NULL; | |
1ff9a340 | 152 | |
d62a17ae | 153 | if (peer->doppelganger && (peer->doppelganger->status != Deleted) |
154 | && !(CHECK_FLAG(peer->doppelganger->flags, | |
155 | PEER_FLAG_CONFIG_NODE))) { | |
156 | if (peer->doppelganger == npeer) | |
157 | /* nnode and *nnode are confirmed to be non-NULL here */ | |
158 | *nnode = (*nnode)->next; | |
159 | peer_delete(peer->doppelganger); | |
160 | } | |
1ff9a340 | 161 | |
d62a17ae | 162 | BGP_EVENT_ADD(peer, BGP_Stop); |
1ff9a340 DS |
163 | } |
164 | ||
718e3744 | 165 | /* BGP global flag manipulation. */ |
d62a17ae | 166 | int bgp_option_set(int flag) |
167 | { | |
168 | switch (flag) { | |
169 | case BGP_OPT_NO_FIB: | |
170 | case BGP_OPT_MULTIPLE_INSTANCE: | |
171 | case BGP_OPT_CONFIG_CISCO: | |
172 | case BGP_OPT_NO_LISTEN: | |
173 | SET_FLAG(bm->options, flag); | |
174 | break; | |
175 | default: | |
176 | return BGP_ERR_INVALID_FLAG; | |
177 | } | |
178 | return 0; | |
179 | } | |
180 | ||
181 | int bgp_option_unset(int flag) | |
182 | { | |
183 | switch (flag) { | |
184 | case BGP_OPT_MULTIPLE_INSTANCE: | |
185 | if (listcount(bm->bgp) > 1) | |
186 | return BGP_ERR_MULTIPLE_INSTANCE_USED; | |
187 | /* Fall through. */ | |
188 | case BGP_OPT_NO_FIB: | |
189 | case BGP_OPT_CONFIG_CISCO: | |
190 | UNSET_FLAG(bm->options, flag); | |
191 | break; | |
192 | default: | |
193 | return BGP_ERR_INVALID_FLAG; | |
194 | } | |
195 | return 0; | |
196 | } | |
197 | ||
198 | int bgp_option_check(int flag) | |
199 | { | |
200 | return CHECK_FLAG(bm->options, flag); | |
718e3744 | 201 | } |
6b0655a2 | 202 | |
718e3744 | 203 | /* BGP flag manipulation. */ |
d62a17ae | 204 | int bgp_flag_set(struct bgp *bgp, int flag) |
718e3744 | 205 | { |
d62a17ae | 206 | SET_FLAG(bgp->flags, flag); |
207 | return 0; | |
718e3744 | 208 | } |
209 | ||
d62a17ae | 210 | int bgp_flag_unset(struct bgp *bgp, int flag) |
718e3744 | 211 | { |
d62a17ae | 212 | UNSET_FLAG(bgp->flags, flag); |
213 | return 0; | |
718e3744 | 214 | } |
215 | ||
d62a17ae | 216 | int bgp_flag_check(struct bgp *bgp, int flag) |
718e3744 | 217 | { |
d62a17ae | 218 | return CHECK_FLAG(bgp->flags, flag); |
718e3744 | 219 | } |
6b0655a2 | 220 | |
718e3744 | 221 | /* Internal function to set BGP structure configureation flag. */ |
d62a17ae | 222 | static void bgp_config_set(struct bgp *bgp, int config) |
718e3744 | 223 | { |
d62a17ae | 224 | SET_FLAG(bgp->config, config); |
718e3744 | 225 | } |
226 | ||
d62a17ae | 227 | static void bgp_config_unset(struct bgp *bgp, int config) |
718e3744 | 228 | { |
d62a17ae | 229 | UNSET_FLAG(bgp->config, config); |
718e3744 | 230 | } |
231 | ||
d62a17ae | 232 | static int bgp_config_check(struct bgp *bgp, int config) |
718e3744 | 233 | { |
d62a17ae | 234 | return CHECK_FLAG(bgp->config, config); |
718e3744 | 235 | } |
6b0655a2 | 236 | |
718e3744 | 237 | /* Set BGP router identifier. */ |
d62a17ae | 238 | static int bgp_router_id_set(struct bgp *bgp, const struct in_addr *id) |
718e3744 | 239 | { |
d62a17ae | 240 | struct peer *peer; |
241 | struct listnode *node, *nnode; | |
718e3744 | 242 | |
d62a17ae | 243 | if (IPV4_ADDR_SAME(&bgp->router_id, id)) |
244 | return 0; | |
718e3744 | 245 | |
d62a17ae | 246 | /* EVPN uses router id in RD, withdraw them */ |
94c2f693 | 247 | if (is_evpn_enabled()) |
d62a17ae | 248 | bgp_evpn_handle_router_id_update(bgp, TRUE); |
2d48ee25 | 249 | |
d62a17ae | 250 | IPV4_ADDR_COPY(&bgp->router_id, id); |
718e3744 | 251 | |
d62a17ae | 252 | /* Set all peer's local identifier with this value. */ |
253 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
254 | IPV4_ADDR_COPY(&peer->local_id, id); | |
718e3744 | 255 | |
d62a17ae | 256 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
257 | peer->last_reset = PEER_DOWN_RID_CHANGE; | |
258 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
259 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
260 | } | |
261 | } | |
14c1a7bf | 262 | |
d62a17ae | 263 | /* EVPN uses router id in RD, update them */ |
94c2f693 | 264 | if (is_evpn_enabled()) |
d62a17ae | 265 | bgp_evpn_handle_router_id_update(bgp, FALSE); |
2d48ee25 | 266 | |
d62a17ae | 267 | return 0; |
718e3744 | 268 | } |
269 | ||
d62a17ae | 270 | void bgp_router_id_zebra_bump(vrf_id_t vrf_id, const struct prefix *router_id) |
0e6cb743 | 271 | { |
d62a17ae | 272 | struct listnode *node, *nnode; |
273 | struct bgp *bgp; | |
0e6cb743 | 274 | |
d62a17ae | 275 | if (vrf_id == VRF_DEFAULT) { |
276 | /* Router-id change for default VRF has to also update all | |
277 | * views. */ | |
278 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) { | |
279 | if (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) | |
280 | continue; | |
0e6cb743 | 281 | |
d62a17ae | 282 | bgp->router_id_zebra = router_id->u.prefix4; |
283 | if (!bgp->router_id_static.s_addr) | |
284 | bgp_router_id_set(bgp, &router_id->u.prefix4); | |
285 | } | |
286 | } else { | |
287 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
288 | if (bgp) { | |
289 | bgp->router_id_zebra = router_id->u.prefix4; | |
0e6cb743 | 290 | |
d62a17ae | 291 | if (!bgp->router_id_static.s_addr) |
292 | bgp_router_id_set(bgp, &router_id->u.prefix4); | |
293 | } | |
294 | } | |
0e6cb743 DL |
295 | } |
296 | ||
d62a17ae | 297 | int bgp_router_id_static_set(struct bgp *bgp, struct in_addr id) |
0e6cb743 | 298 | { |
d62a17ae | 299 | bgp->router_id_static = id; |
300 | bgp_router_id_set(bgp, id.s_addr ? &id : &bgp->router_id_zebra); | |
301 | return 0; | |
0e6cb743 DL |
302 | } |
303 | ||
718e3744 | 304 | /* BGP's cluster-id control. */ |
d62a17ae | 305 | int bgp_cluster_id_set(struct bgp *bgp, struct in_addr *cluster_id) |
718e3744 | 306 | { |
d62a17ae | 307 | struct peer *peer; |
308 | struct listnode *node, *nnode; | |
718e3744 | 309 | |
d62a17ae | 310 | if (bgp_config_check(bgp, BGP_CONFIG_CLUSTER_ID) |
311 | && IPV4_ADDR_SAME(&bgp->cluster_id, cluster_id)) | |
312 | return 0; | |
718e3744 | 313 | |
d62a17ae | 314 | IPV4_ADDR_COPY(&bgp->cluster_id, cluster_id); |
315 | bgp_config_set(bgp, BGP_CONFIG_CLUSTER_ID); | |
718e3744 | 316 | |
d62a17ae | 317 | /* Clear all IBGP peer. */ |
318 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
319 | if (peer->sort != BGP_PEER_IBGP) | |
320 | continue; | |
718e3744 | 321 | |
d62a17ae | 322 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
323 | peer->last_reset = PEER_DOWN_CLID_CHANGE; | |
324 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
325 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
326 | } | |
327 | } | |
328 | return 0; | |
718e3744 | 329 | } |
330 | ||
d62a17ae | 331 | int bgp_cluster_id_unset(struct bgp *bgp) |
718e3744 | 332 | { |
d62a17ae | 333 | struct peer *peer; |
334 | struct listnode *node, *nnode; | |
718e3744 | 335 | |
d62a17ae | 336 | if (!bgp_config_check(bgp, BGP_CONFIG_CLUSTER_ID)) |
337 | return 0; | |
718e3744 | 338 | |
d62a17ae | 339 | bgp->cluster_id.s_addr = 0; |
340 | bgp_config_unset(bgp, BGP_CONFIG_CLUSTER_ID); | |
718e3744 | 341 | |
d62a17ae | 342 | /* Clear all IBGP peer. */ |
343 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
344 | if (peer->sort != BGP_PEER_IBGP) | |
345 | continue; | |
718e3744 | 346 | |
d62a17ae | 347 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
348 | peer->last_reset = PEER_DOWN_CLID_CHANGE; | |
349 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
350 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
351 | } | |
352 | } | |
353 | return 0; | |
718e3744 | 354 | } |
6b0655a2 | 355 | |
65957886 SH |
356 | /* time_t value that is monotonicly increasing |
357 | * and uneffected by adjustments to system clock | |
358 | */ | |
d62a17ae | 359 | time_t bgp_clock(void) |
65957886 | 360 | { |
d62a17ae | 361 | struct timeval tv; |
65957886 | 362 | |
d62a17ae | 363 | monotime(&tv); |
364 | return tv.tv_sec; | |
65957886 SH |
365 | } |
366 | ||
718e3744 | 367 | /* BGP timer configuration. */ |
d7c0a89a | 368 | int bgp_timers_set(struct bgp *bgp, uint32_t keepalive, uint32_t holdtime) |
718e3744 | 369 | { |
d62a17ae | 370 | bgp->default_keepalive = |
371 | (keepalive < holdtime / 3 ? keepalive : holdtime / 3); | |
372 | bgp->default_holdtime = holdtime; | |
718e3744 | 373 | |
d62a17ae | 374 | return 0; |
718e3744 | 375 | } |
376 | ||
d62a17ae | 377 | int bgp_timers_unset(struct bgp *bgp) |
718e3744 | 378 | { |
d62a17ae | 379 | bgp->default_keepalive = BGP_DEFAULT_KEEPALIVE; |
380 | bgp->default_holdtime = BGP_DEFAULT_HOLDTIME; | |
718e3744 | 381 | |
d62a17ae | 382 | return 0; |
718e3744 | 383 | } |
6b0655a2 | 384 | |
718e3744 | 385 | /* BGP confederation configuration. */ |
d62a17ae | 386 | int bgp_confederation_id_set(struct bgp *bgp, as_t as) |
387 | { | |
388 | struct peer *peer; | |
389 | struct listnode *node, *nnode; | |
390 | int already_confed; | |
391 | ||
392 | if (as == 0) | |
393 | return BGP_ERR_INVALID_AS; | |
394 | ||
395 | /* Remember - were we doing confederation before? */ | |
396 | already_confed = bgp_config_check(bgp, BGP_CONFIG_CONFEDERATION); | |
397 | bgp->confed_id = as; | |
398 | bgp_config_set(bgp, BGP_CONFIG_CONFEDERATION); | |
399 | ||
400 | /* If we were doing confederation already, this is just an external | |
401 | AS change. Just Reset EBGP sessions, not CONFED sessions. If we | |
402 | were not doing confederation before, reset all EBGP sessions. */ | |
403 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
404 | /* We're looking for peers who's AS is not local or part of our | |
405 | confederation. */ | |
406 | if (already_confed) { | |
407 | if (peer_sort(peer) == BGP_PEER_EBGP) { | |
408 | peer->local_as = as; | |
409 | if (BGP_IS_VALID_STATE_FOR_NOTIF( | |
410 | peer->status)) { | |
411 | peer->last_reset = | |
412 | PEER_DOWN_CONFED_ID_CHANGE; | |
413 | bgp_notify_send( | |
414 | peer, BGP_NOTIFY_CEASE, | |
415 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
416 | } else | |
417 | bgp_session_reset_safe(peer, &nnode); | |
418 | } | |
419 | } else { | |
420 | /* Not doign confederation before, so reset every | |
421 | non-local | |
422 | session */ | |
423 | if (peer_sort(peer) != BGP_PEER_IBGP) { | |
424 | /* Reset the local_as to be our EBGP one */ | |
425 | if (peer_sort(peer) == BGP_PEER_EBGP) | |
426 | peer->local_as = as; | |
427 | if (BGP_IS_VALID_STATE_FOR_NOTIF( | |
428 | peer->status)) { | |
429 | peer->last_reset = | |
430 | PEER_DOWN_CONFED_ID_CHANGE; | |
431 | bgp_notify_send( | |
432 | peer, BGP_NOTIFY_CEASE, | |
433 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
434 | } else | |
435 | bgp_session_reset_safe(peer, &nnode); | |
436 | } | |
437 | } | |
718e3744 | 438 | } |
d62a17ae | 439 | return 0; |
718e3744 | 440 | } |
441 | ||
d62a17ae | 442 | int bgp_confederation_id_unset(struct bgp *bgp) |
718e3744 | 443 | { |
d62a17ae | 444 | struct peer *peer; |
445 | struct listnode *node, *nnode; | |
446 | ||
447 | bgp->confed_id = 0; | |
448 | bgp_config_unset(bgp, BGP_CONFIG_CONFEDERATION); | |
718e3744 | 449 | |
d62a17ae | 450 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { |
451 | /* We're looking for peers who's AS is not local */ | |
452 | if (peer_sort(peer) != BGP_PEER_IBGP) { | |
453 | peer->local_as = bgp->as; | |
454 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
455 | peer->last_reset = PEER_DOWN_CONFED_ID_CHANGE; | |
456 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
457 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
458 | } | |
718e3744 | 459 | |
d62a17ae | 460 | else |
461 | bgp_session_reset_safe(peer, &nnode); | |
462 | } | |
463 | } | |
464 | return 0; | |
718e3744 | 465 | } |
466 | ||
d62a17ae | 467 | /* Is an AS part of the confed or not? */ |
468 | int bgp_confederation_peers_check(struct bgp *bgp, as_t as) | |
718e3744 | 469 | { |
d62a17ae | 470 | int i; |
718e3744 | 471 | |
d62a17ae | 472 | if (!bgp) |
473 | return 0; | |
718e3744 | 474 | |
d62a17ae | 475 | for (i = 0; i < bgp->confed_peers_cnt; i++) |
476 | if (bgp->confed_peers[i] == as) | |
477 | return 1; | |
718e3744 | 478 | |
d62a17ae | 479 | return 0; |
480 | } | |
718e3744 | 481 | |
d62a17ae | 482 | /* Add an AS to the confederation set. */ |
483 | int bgp_confederation_peers_add(struct bgp *bgp, as_t as) | |
484 | { | |
485 | struct peer *peer; | |
486 | struct listnode *node, *nnode; | |
487 | ||
488 | if (!bgp) | |
489 | return BGP_ERR_INVALID_BGP; | |
490 | ||
491 | if (bgp->as == as) | |
492 | return BGP_ERR_INVALID_AS; | |
493 | ||
494 | if (bgp_confederation_peers_check(bgp, as)) | |
495 | return -1; | |
496 | ||
497 | if (bgp->confed_peers) | |
498 | bgp->confed_peers = | |
499 | XREALLOC(MTYPE_BGP_CONFED_LIST, bgp->confed_peers, | |
500 | (bgp->confed_peers_cnt + 1) * sizeof(as_t)); | |
501 | else | |
502 | bgp->confed_peers = | |
503 | XMALLOC(MTYPE_BGP_CONFED_LIST, | |
504 | (bgp->confed_peers_cnt + 1) * sizeof(as_t)); | |
505 | ||
506 | bgp->confed_peers[bgp->confed_peers_cnt] = as; | |
507 | bgp->confed_peers_cnt++; | |
508 | ||
509 | if (bgp_config_check(bgp, BGP_CONFIG_CONFEDERATION)) { | |
510 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
511 | if (peer->as == as) { | |
512 | peer->local_as = bgp->as; | |
513 | if (BGP_IS_VALID_STATE_FOR_NOTIF( | |
514 | peer->status)) { | |
515 | peer->last_reset = | |
516 | PEER_DOWN_CONFED_PEER_CHANGE; | |
517 | bgp_notify_send( | |
518 | peer, BGP_NOTIFY_CEASE, | |
519 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
520 | } else | |
521 | bgp_session_reset_safe(peer, &nnode); | |
522 | } | |
523 | } | |
524 | } | |
525 | return 0; | |
718e3744 | 526 | } |
527 | ||
528 | /* Delete an AS from the confederation set. */ | |
d62a17ae | 529 | int bgp_confederation_peers_remove(struct bgp *bgp, as_t as) |
530 | { | |
531 | int i; | |
532 | int j; | |
533 | struct peer *peer; | |
534 | struct listnode *node, *nnode; | |
535 | ||
536 | if (!bgp) | |
537 | return -1; | |
538 | ||
539 | if (!bgp_confederation_peers_check(bgp, as)) | |
540 | return -1; | |
541 | ||
542 | for (i = 0; i < bgp->confed_peers_cnt; i++) | |
543 | if (bgp->confed_peers[i] == as) | |
544 | for (j = i + 1; j < bgp->confed_peers_cnt; j++) | |
545 | bgp->confed_peers[j - 1] = bgp->confed_peers[j]; | |
546 | ||
547 | bgp->confed_peers_cnt--; | |
548 | ||
549 | if (bgp->confed_peers_cnt == 0) { | |
550 | if (bgp->confed_peers) | |
551 | XFREE(MTYPE_BGP_CONFED_LIST, bgp->confed_peers); | |
552 | bgp->confed_peers = NULL; | |
553 | } else | |
554 | bgp->confed_peers = | |
555 | XREALLOC(MTYPE_BGP_CONFED_LIST, bgp->confed_peers, | |
556 | bgp->confed_peers_cnt * sizeof(as_t)); | |
557 | ||
558 | /* Now reset any peer who's remote AS has just been removed from the | |
559 | CONFED */ | |
560 | if (bgp_config_check(bgp, BGP_CONFIG_CONFEDERATION)) { | |
561 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
562 | if (peer->as == as) { | |
563 | peer->local_as = bgp->confed_id; | |
564 | if (BGP_IS_VALID_STATE_FOR_NOTIF( | |
565 | peer->status)) { | |
566 | peer->last_reset = | |
567 | PEER_DOWN_CONFED_PEER_CHANGE; | |
568 | bgp_notify_send( | |
569 | peer, BGP_NOTIFY_CEASE, | |
570 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
571 | } else | |
572 | bgp_session_reset_safe(peer, &nnode); | |
573 | } | |
574 | } | |
718e3744 | 575 | } |
718e3744 | 576 | |
d62a17ae | 577 | return 0; |
718e3744 | 578 | } |
6b0655a2 | 579 | |
718e3744 | 580 | /* Local preference configuration. */ |
d7c0a89a | 581 | int bgp_default_local_preference_set(struct bgp *bgp, uint32_t local_pref) |
718e3744 | 582 | { |
d62a17ae | 583 | if (!bgp) |
584 | return -1; | |
718e3744 | 585 | |
d62a17ae | 586 | bgp->default_local_pref = local_pref; |
718e3744 | 587 | |
d62a17ae | 588 | return 0; |
718e3744 | 589 | } |
590 | ||
d62a17ae | 591 | int bgp_default_local_preference_unset(struct bgp *bgp) |
718e3744 | 592 | { |
d62a17ae | 593 | if (!bgp) |
594 | return -1; | |
718e3744 | 595 | |
d62a17ae | 596 | bgp->default_local_pref = BGP_DEFAULT_LOCAL_PREF; |
718e3744 | 597 | |
d62a17ae | 598 | return 0; |
718e3744 | 599 | } |
6b0655a2 | 600 | |
3f9c7369 | 601 | /* Local preference configuration. */ |
d7c0a89a | 602 | int bgp_default_subgroup_pkt_queue_max_set(struct bgp *bgp, uint32_t queue_size) |
3f9c7369 | 603 | { |
d62a17ae | 604 | if (!bgp) |
605 | return -1; | |
3f9c7369 | 606 | |
d62a17ae | 607 | bgp->default_subgroup_pkt_queue_max = queue_size; |
3f9c7369 | 608 | |
d62a17ae | 609 | return 0; |
3f9c7369 DS |
610 | } |
611 | ||
d62a17ae | 612 | int bgp_default_subgroup_pkt_queue_max_unset(struct bgp *bgp) |
3f9c7369 | 613 | { |
d62a17ae | 614 | if (!bgp) |
615 | return -1; | |
616 | bgp->default_subgroup_pkt_queue_max = | |
617 | BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX; | |
3f9c7369 | 618 | |
d62a17ae | 619 | return 0; |
3f9c7369 DS |
620 | } |
621 | ||
f14e6fdb | 622 | /* Listen limit configuration. */ |
d62a17ae | 623 | int bgp_listen_limit_set(struct bgp *bgp, int listen_limit) |
f14e6fdb | 624 | { |
d62a17ae | 625 | if (!bgp) |
626 | return -1; | |
f14e6fdb | 627 | |
d62a17ae | 628 | bgp->dynamic_neighbors_limit = listen_limit; |
f14e6fdb | 629 | |
d62a17ae | 630 | return 0; |
f14e6fdb DS |
631 | } |
632 | ||
d62a17ae | 633 | int bgp_listen_limit_unset(struct bgp *bgp) |
f14e6fdb | 634 | { |
d62a17ae | 635 | if (!bgp) |
636 | return -1; | |
f14e6fdb | 637 | |
d62a17ae | 638 | bgp->dynamic_neighbors_limit = BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT; |
f14e6fdb | 639 | |
d62a17ae | 640 | return 0; |
f14e6fdb DS |
641 | } |
642 | ||
5c525538 RW |
643 | int bgp_map_afi_safi_iana2int(iana_afi_t pkt_afi, iana_safi_t pkt_safi, |
644 | afi_t *afi, safi_t *safi) | |
9cabb64b | 645 | { |
d62a17ae | 646 | /* Map from IANA values to internal values, return error if |
647 | * values are unrecognized. | |
648 | */ | |
649 | *afi = afi_iana2int(pkt_afi); | |
650 | *safi = safi_iana2int(pkt_safi); | |
651 | if (*afi == AFI_MAX || *safi == SAFI_MAX) | |
652 | return -1; | |
9cabb64b | 653 | |
d62a17ae | 654 | return 0; |
9cabb64b | 655 | } |
656 | ||
d62a17ae | 657 | int bgp_map_afi_safi_int2iana(afi_t afi, safi_t safi, iana_afi_t *pkt_afi, |
5c525538 | 658 | iana_safi_t *pkt_safi) |
9cabb64b | 659 | { |
d62a17ae | 660 | /* Map from internal values to IANA values, return error if |
661 | * internal values are bad (unexpected). | |
662 | */ | |
663 | if (afi == AFI_MAX || safi == SAFI_MAX) | |
664 | return -1; | |
665 | *pkt_afi = afi_int2iana(afi); | |
666 | *pkt_safi = safi_int2iana(safi); | |
667 | return 0; | |
9cabb64b | 668 | } |
669 | ||
d62a17ae | 670 | struct peer_af *peer_af_create(struct peer *peer, afi_t afi, safi_t safi) |
3f9c7369 | 671 | { |
d62a17ae | 672 | struct peer_af *af; |
673 | int afid; | |
3f9c7369 | 674 | |
d62a17ae | 675 | if (!peer) |
676 | return NULL; | |
3f9c7369 | 677 | |
d62a17ae | 678 | afid = afindex(afi, safi); |
679 | if (afid >= BGP_AF_MAX) | |
680 | return NULL; | |
3f9c7369 | 681 | |
d62a17ae | 682 | assert(peer->peer_af_array[afid] == NULL); |
3f9c7369 | 683 | |
d62a17ae | 684 | /* Allocate new peer af */ |
685 | af = XCALLOC(MTYPE_BGP_PEER_AF, sizeof(struct peer_af)); | |
c8560b44 | 686 | |
d62a17ae | 687 | peer->peer_af_array[afid] = af; |
688 | af->afi = afi; | |
689 | af->safi = safi; | |
690 | af->afid = afid; | |
691 | af->peer = peer; | |
3f9c7369 | 692 | |
d62a17ae | 693 | return af; |
3f9c7369 DS |
694 | } |
695 | ||
d62a17ae | 696 | struct peer_af *peer_af_find(struct peer *peer, afi_t afi, safi_t safi) |
3f9c7369 | 697 | { |
d62a17ae | 698 | int afid; |
3f9c7369 | 699 | |
d62a17ae | 700 | if (!peer) |
701 | return NULL; | |
3f9c7369 | 702 | |
d62a17ae | 703 | afid = afindex(afi, safi); |
704 | if (afid >= BGP_AF_MAX) | |
705 | return NULL; | |
3f9c7369 | 706 | |
d62a17ae | 707 | return peer->peer_af_array[afid]; |
3f9c7369 DS |
708 | } |
709 | ||
d62a17ae | 710 | int peer_af_delete(struct peer *peer, afi_t afi, safi_t safi) |
3f9c7369 | 711 | { |
d62a17ae | 712 | struct peer_af *af; |
713 | int afid; | |
3f9c7369 | 714 | |
d62a17ae | 715 | if (!peer) |
716 | return -1; | |
3f9c7369 | 717 | |
d62a17ae | 718 | afid = afindex(afi, safi); |
719 | if (afid >= BGP_AF_MAX) | |
720 | return -1; | |
3f9c7369 | 721 | |
d62a17ae | 722 | af = peer->peer_af_array[afid]; |
723 | if (!af) | |
724 | return -1; | |
3f9c7369 | 725 | |
d62a17ae | 726 | bgp_stop_announce_route_timer(af); |
3f9c7369 | 727 | |
d62a17ae | 728 | if (PAF_SUBGRP(af)) { |
729 | if (BGP_DEBUG(update_groups, UPDATE_GROUPS)) | |
730 | zlog_debug("u%" PRIu64 ":s%" PRIu64 " remove peer %s", | |
731 | af->subgroup->update_group->id, | |
732 | af->subgroup->id, peer->host); | |
733 | } | |
3f9c7369 | 734 | |
d62a17ae | 735 | update_subgroup_remove_peer(af->subgroup, af); |
3f9c7369 | 736 | |
d62a17ae | 737 | peer->peer_af_array[afid] = NULL; |
738 | XFREE(MTYPE_BGP_PEER_AF, af); | |
739 | return 0; | |
3f9c7369 DS |
740 | } |
741 | ||
eb821189 | 742 | /* Peer comparison function for sorting. */ |
d62a17ae | 743 | int peer_cmp(struct peer *p1, struct peer *p2) |
718e3744 | 744 | { |
d62a17ae | 745 | if (p1->group && !p2->group) |
746 | return -1; | |
0aaa34db | 747 | |
d62a17ae | 748 | if (!p1->group && p2->group) |
749 | return 1; | |
0aaa34db | 750 | |
d62a17ae | 751 | if (p1->group == p2->group) { |
752 | if (p1->conf_if && !p2->conf_if) | |
753 | return -1; | |
0aaa34db | 754 | |
d62a17ae | 755 | if (!p1->conf_if && p2->conf_if) |
756 | return 1; | |
0aaa34db | 757 | |
d62a17ae | 758 | if (p1->conf_if && p2->conf_if) |
759 | return if_cmp_name_func(p1->conf_if, p2->conf_if); | |
760 | } else | |
761 | return strcmp(p1->group->name, p2->group->name); | |
0aaa34db | 762 | |
d62a17ae | 763 | return sockunion_cmp(&p1->su, &p2->su); |
718e3744 | 764 | } |
765 | ||
d62a17ae | 766 | static unsigned int peer_hash_key_make(void *p) |
dd793e4a | 767 | { |
d62a17ae | 768 | struct peer *peer = p; |
769 | return sockunion_hash(&peer->su); | |
dd793e4a DW |
770 | } |
771 | ||
40520c36 | 772 | static int peer_hash_same(const void *p1, const void *p2) |
dd793e4a | 773 | { |
d62a17ae | 774 | const struct peer *peer1 = p1; |
775 | const struct peer *peer2 = p2; | |
776 | return (sockunion_same(&peer1->su, &peer2->su) | |
777 | && CHECK_FLAG(peer1->flags, PEER_FLAG_CONFIG_NODE) | |
778 | == CHECK_FLAG(peer2->flags, PEER_FLAG_CONFIG_NODE)); | |
dd793e4a DW |
779 | } |
780 | ||
9fb964de PM |
781 | void peer_flag_inherit(struct peer *peer, uint32_t flag) |
782 | { | |
783 | bool group_val; | |
784 | ||
785 | /* Skip if peer is not a peer-group member. */ | |
786 | if (!peer_group_active(peer)) | |
787 | return; | |
788 | ||
789 | /* Unset override flag to signal inheritance from peer-group. */ | |
790 | UNSET_FLAG(peer->flags_override, flag); | |
791 | ||
792 | /* | |
793 | * Inherit flag state from peer-group. If the flag of the peer-group is | |
794 | * not being inverted, the peer must inherit the inverse of the current | |
795 | * peer-group flag state. | |
796 | */ | |
797 | group_val = CHECK_FLAG(peer->group->conf->flags, flag); | |
798 | if (!CHECK_FLAG(peer->group->conf->flags_invert, flag) | |
799 | && CHECK_FLAG(peer->flags_invert, flag)) | |
800 | COND_FLAG(peer->flags, flag, !group_val); | |
801 | else | |
802 | COND_FLAG(peer->flags, flag, group_val); | |
803 | } | |
804 | ||
d7c0a89a | 805 | int peer_af_flag_check(struct peer *peer, afi_t afi, safi_t safi, uint32_t flag) |
718e3744 | 806 | { |
d62a17ae | 807 | return CHECK_FLAG(peer->af_flags[afi][safi], flag); |
718e3744 | 808 | } |
809 | ||
598ce6bd PM |
810 | void peer_af_flag_inherit(struct peer *peer, afi_t afi, safi_t safi, |
811 | uint32_t flag) | |
88b8ed8d | 812 | { |
527de3dc PM |
813 | bool group_val; |
814 | ||
598ce6bd PM |
815 | /* Skip if peer is not a peer-group member. */ |
816 | if (!peer_group_active(peer)) | |
817 | return; | |
88b8ed8d | 818 | |
598ce6bd PM |
819 | /* Unset override flag to signal inheritance from peer-group. */ |
820 | UNSET_FLAG(peer->af_flags_override[afi][safi], flag); | |
88b8ed8d | 821 | |
527de3dc PM |
822 | /* |
823 | * Inherit flag state from peer-group. If the flag of the peer-group is | |
824 | * not being inverted, the peer must inherit the inverse of the current | |
825 | * peer-group flag state. | |
826 | */ | |
827 | group_val = CHECK_FLAG(peer->group->conf->af_flags[afi][safi], flag); | |
828 | if (!CHECK_FLAG(peer->group->conf->af_flags_invert[afi][safi], flag) | |
829 | && CHECK_FLAG(peer->af_flags_invert[afi][safi], flag)) | |
830 | COND_FLAG(peer->af_flags[afi][safi], flag, !group_val); | |
598ce6bd | 831 | else |
527de3dc | 832 | COND_FLAG(peer->af_flags[afi][safi], flag, group_val); |
598ce6bd | 833 | } |
88b8ed8d | 834 | |
9fb964de PM |
835 | static bool peergroup_flag_check(struct peer *peer, uint32_t flag) |
836 | { | |
837 | if (!peer_group_active(peer)) { | |
838 | if (CHECK_FLAG(peer->flags_invert, flag)) | |
839 | return !CHECK_FLAG(peer->flags, flag); | |
840 | else | |
841 | return !!CHECK_FLAG(peer->flags, flag); | |
842 | } | |
843 | ||
844 | return !!CHECK_FLAG(peer->flags_override, flag); | |
845 | } | |
846 | ||
598ce6bd PM |
847 | static bool peergroup_af_flag_check(struct peer *peer, afi_t afi, safi_t safi, |
848 | uint32_t flag) | |
849 | { | |
27c05d4d PM |
850 | if (!peer_group_active(peer)) { |
851 | if (CHECK_FLAG(peer->af_flags_invert[afi][safi], flag)) | |
852 | return !peer_af_flag_check(peer, afi, safi, flag); | |
853 | else | |
854 | return !!peer_af_flag_check(peer, afi, safi, flag); | |
d62a17ae | 855 | } |
88b8ed8d | 856 | |
598ce6bd | 857 | return !!CHECK_FLAG(peer->af_flags_override[afi][safi], flag); |
88b8ed8d DW |
858 | } |
859 | ||
70ee29b4 PM |
860 | static bool peergroup_filter_check(struct peer *peer, afi_t afi, safi_t safi, |
861 | uint8_t type, int direct) | |
862 | { | |
863 | struct bgp_filter *filter; | |
864 | ||
865 | if (peer_group_active(peer)) | |
866 | return !!CHECK_FLAG(peer->filter_override[afi][safi][direct], | |
867 | type); | |
868 | ||
869 | filter = &peer->filter[afi][safi]; | |
870 | switch (type) { | |
871 | case PEER_FT_DISTRIBUTE_LIST: | |
872 | return !!(filter->dlist[direct].name); | |
873 | case PEER_FT_FILTER_LIST: | |
874 | return !!(filter->aslist[direct].name); | |
875 | case PEER_FT_PREFIX_LIST: | |
876 | return !!(filter->plist[direct].name); | |
877 | case PEER_FT_ROUTE_MAP: | |
878 | return !!(filter->map[direct].name); | |
879 | case PEER_FT_UNSUPPRESS_MAP: | |
880 | return !!(filter->usmap.name); | |
881 | default: | |
882 | return false; | |
883 | } | |
88b8ed8d DW |
884 | } |
885 | ||
6d85b15b | 886 | /* Check peer's AS number and determines if this peer is IBGP or EBGP */ |
82417ac2 | 887 | static inline bgp_peer_sort_t peer_calc_sort(struct peer *peer) |
718e3744 | 888 | { |
d62a17ae | 889 | struct bgp *bgp; |
718e3744 | 890 | |
d62a17ae | 891 | bgp = peer->bgp; |
718e3744 | 892 | |
d62a17ae | 893 | /* Peer-group */ |
894 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
895 | if (peer->as_type == AS_INTERNAL) | |
896 | return BGP_PEER_IBGP; | |
66b199b2 | 897 | |
d62a17ae | 898 | else if (peer->as_type == AS_EXTERNAL) |
899 | return BGP_PEER_EBGP; | |
66b199b2 | 900 | |
b575a12c A |
901 | else if (peer->as_type == AS_SPECIFIED && peer->as) { |
902 | assert(bgp); | |
d62a17ae | 903 | return (bgp->as == peer->as ? BGP_PEER_IBGP |
904 | : BGP_PEER_EBGP); | |
b575a12c | 905 | } |
66b199b2 | 906 | |
d62a17ae | 907 | else { |
908 | struct peer *peer1; | |
d4f8b537 | 909 | |
910 | assert(peer->group); | |
d62a17ae | 911 | peer1 = listnode_head(peer->group->peer); |
912 | ||
913 | if (peer1) | |
914 | return peer1->sort; | |
915 | } | |
916 | return BGP_PEER_INTERNAL; | |
917 | } | |
918 | ||
919 | /* Normal peer */ | |
920 | if (bgp && CHECK_FLAG(bgp->config, BGP_CONFIG_CONFEDERATION)) { | |
921 | if (peer->local_as == 0) | |
922 | return BGP_PEER_INTERNAL; | |
923 | ||
924 | if (peer->local_as == peer->as) { | |
925 | if (bgp->as == bgp->confed_id) { | |
926 | if (peer->local_as == bgp->as) | |
927 | return BGP_PEER_IBGP; | |
928 | else | |
929 | return BGP_PEER_EBGP; | |
930 | } else { | |
931 | if (peer->local_as == bgp->confed_id) | |
932 | return BGP_PEER_EBGP; | |
933 | else | |
934 | return BGP_PEER_IBGP; | |
935 | } | |
936 | } | |
937 | ||
938 | if (bgp_confederation_peers_check(bgp, peer->as)) | |
939 | return BGP_PEER_CONFED; | |
940 | ||
941 | return BGP_PEER_EBGP; | |
942 | } else { | |
943 | if (peer->as_type != AS_SPECIFIED) | |
944 | return (peer->as_type == AS_INTERNAL ? BGP_PEER_IBGP | |
945 | : BGP_PEER_EBGP); | |
946 | ||
947 | return (peer->local_as == 0 | |
948 | ? BGP_PEER_INTERNAL | |
949 | : peer->local_as == peer->as ? BGP_PEER_IBGP | |
950 | : BGP_PEER_EBGP); | |
951 | } | |
718e3744 | 952 | } |
953 | ||
6d85b15b | 954 | /* Calculate and cache the peer "sort" */ |
d62a17ae | 955 | bgp_peer_sort_t peer_sort(struct peer *peer) |
956 | { | |
957 | peer->sort = peer_calc_sort(peer); | |
958 | return peer->sort; | |
959 | } | |
960 | ||
961 | static void peer_free(struct peer *peer) | |
962 | { | |
963 | assert(peer->status == Deleted); | |
964 | ||
965 | QOBJ_UNREG(peer); | |
966 | ||
967 | /* this /ought/ to have been done already through bgp_stop earlier, | |
968 | * but just to be sure.. | |
969 | */ | |
970 | bgp_timer_set(peer); | |
424ab01d QY |
971 | bgp_reads_off(peer); |
972 | bgp_writes_off(peer); | |
973 | assert(!peer->t_write); | |
974 | assert(!peer->t_read); | |
d62a17ae | 975 | BGP_EVENT_FLUSH(peer); |
976 | ||
424ab01d QY |
977 | pthread_mutex_destroy(&peer->io_mtx); |
978 | ||
d62a17ae | 979 | /* Free connected nexthop, if present */ |
980 | if (CHECK_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE) | |
981 | && !peer_dynamic_neighbor(peer)) | |
982 | bgp_delete_connected_nexthop(family2afi(peer->su.sa.sa_family), | |
983 | peer); | |
984 | ||
985 | XFREE(MTYPE_PEER_TX_SHUTDOWN_MSG, peer->tx_shutdown_message); | |
986 | ||
987 | if (peer->desc) { | |
988 | XFREE(MTYPE_PEER_DESC, peer->desc); | |
989 | peer->desc = NULL; | |
990 | } | |
991 | ||
992 | /* Free allocated host character. */ | |
993 | if (peer->host) { | |
994 | XFREE(MTYPE_BGP_PEER_HOST, peer->host); | |
995 | peer->host = NULL; | |
996 | } | |
997 | ||
998 | if (peer->domainname) { | |
999 | XFREE(MTYPE_BGP_PEER_HOST, peer->domainname); | |
1000 | peer->domainname = NULL; | |
1001 | } | |
1002 | ||
1003 | if (peer->ifname) { | |
1004 | XFREE(MTYPE_BGP_PEER_IFNAME, peer->ifname); | |
1005 | peer->ifname = NULL; | |
1006 | } | |
1007 | ||
1008 | /* Update source configuration. */ | |
1009 | if (peer->update_source) { | |
1010 | sockunion_free(peer->update_source); | |
1011 | peer->update_source = NULL; | |
1012 | } | |
1013 | ||
1014 | if (peer->update_if) { | |
1015 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); | |
1016 | peer->update_if = NULL; | |
1017 | } | |
1018 | ||
1019 | if (peer->notify.data) | |
1020 | XFREE(MTYPE_TMP, peer->notify.data); | |
1021 | memset(&peer->notify, 0, sizeof(struct bgp_notify)); | |
1022 | ||
e208c8f9 DS |
1023 | if (peer->clear_node_queue) |
1024 | work_queue_free_and_null(&peer->clear_node_queue); | |
d62a17ae | 1025 | |
1026 | bgp_sync_delete(peer); | |
1027 | ||
1028 | if (peer->conf_if) { | |
1029 | XFREE(MTYPE_PEER_CONF_IF, peer->conf_if); | |
1030 | peer->conf_if = NULL; | |
1031 | } | |
1032 | ||
1033 | bfd_info_free(&(peer->bfd_info)); | |
1034 | ||
1035 | bgp_unlock(peer->bgp); | |
1036 | ||
1037 | memset(peer, 0, sizeof(struct peer)); | |
1038 | ||
1039 | XFREE(MTYPE_BGP_PEER, peer); | |
1040 | } | |
1041 | ||
200df115 | 1042 | /* increase reference count on a struct peer */ |
d62a17ae | 1043 | struct peer *peer_lock_with_caller(const char *name, struct peer *peer) |
200df115 | 1044 | { |
d62a17ae | 1045 | assert(peer && (peer->lock >= 0)); |
28066f4b DS |
1046 | |
1047 | #if 0 | |
1048 | zlog_debug("%s peer_lock %p %d", name, peer, peer->lock); | |
1049 | #endif | |
d62a17ae | 1050 | |
1051 | peer->lock++; | |
1052 | ||
1053 | return peer; | |
200df115 | 1054 | } |
1055 | ||
1056 | /* decrease reference count on a struct peer | |
1057 | * struct peer is freed and NULL returned if last reference | |
1058 | */ | |
d62a17ae | 1059 | struct peer *peer_unlock_with_caller(const char *name, struct peer *peer) |
200df115 | 1060 | { |
d62a17ae | 1061 | assert(peer && (peer->lock > 0)); |
28066f4b DS |
1062 | |
1063 | #if 0 | |
1064 | zlog_debug("%s peer_unlock %p %d", name, peer, peer->lock); | |
1065 | #endif | |
200df115 | 1066 | |
d62a17ae | 1067 | peer->lock--; |
1068 | ||
1069 | if (peer->lock == 0) { | |
1070 | peer_free(peer); | |
1071 | return NULL; | |
1072 | } | |
1073 | ||
1074 | return peer; | |
200df115 | 1075 | } |
1ff9a340 | 1076 | |
200df115 | 1077 | /* Allocate new peer object, implicitely locked. */ |
d62a17ae | 1078 | struct peer *peer_new(struct bgp *bgp) |
1079 | { | |
1080 | afi_t afi; | |
1081 | safi_t safi; | |
1082 | struct peer *peer; | |
1083 | struct servent *sp; | |
1084 | ||
1085 | /* bgp argument is absolutely required */ | |
1086 | assert(bgp); | |
1087 | if (!bgp) | |
1088 | return NULL; | |
1089 | ||
1090 | /* Allocate new peer. */ | |
1091 | peer = XCALLOC(MTYPE_BGP_PEER, sizeof(struct peer)); | |
1092 | ||
1093 | /* Set default value. */ | |
1094 | peer->fd = -1; | |
1095 | peer->v_start = BGP_INIT_START_TIMER; | |
1096 | peer->v_connect = BGP_DEFAULT_CONNECT_RETRY; | |
1097 | peer->status = Idle; | |
1098 | peer->ostatus = Idle; | |
1099 | peer->cur_event = peer->last_event = peer->last_major_event = 0; | |
92375c91 | 1100 | peer->bgp = bgp_lock(bgp); |
d62a17ae | 1101 | peer = peer_lock(peer); /* initial reference */ |
d62a17ae | 1102 | peer->password = NULL; |
1103 | ||
27c05d4d | 1104 | /* Set default flags. */ |
05c7a1cc QY |
1105 | FOREACH_AFI_SAFI (afi, safi) { |
1106 | if (!bgp_option_check(BGP_OPT_CONFIG_CISCO)) { | |
1107 | SET_FLAG(peer->af_flags[afi][safi], | |
1108 | PEER_FLAG_SEND_COMMUNITY); | |
1109 | SET_FLAG(peer->af_flags[afi][safi], | |
1110 | PEER_FLAG_SEND_EXT_COMMUNITY); | |
1111 | SET_FLAG(peer->af_flags[afi][safi], | |
1112 | PEER_FLAG_SEND_LARGE_COMMUNITY); | |
27c05d4d PM |
1113 | |
1114 | SET_FLAG(peer->af_flags_invert[afi][safi], | |
1115 | PEER_FLAG_SEND_COMMUNITY); | |
1116 | SET_FLAG(peer->af_flags_invert[afi][safi], | |
1117 | PEER_FLAG_SEND_EXT_COMMUNITY); | |
1118 | SET_FLAG(peer->af_flags_invert[afi][safi], | |
1119 | PEER_FLAG_SEND_LARGE_COMMUNITY); | |
d62a17ae | 1120 | } |
05c7a1cc | 1121 | } |
637315fc MK |
1122 | |
1123 | /* set nexthop-unchanged for l2vpn evpn by default */ | |
1124 | SET_FLAG(peer->af_flags[AFI_L2VPN][SAFI_EVPN], | |
1125 | PEER_FLAG_NEXTHOP_UNCHANGED); | |
1126 | ||
d62a17ae | 1127 | SET_FLAG(peer->sflags, PEER_STATUS_CAPABILITY_OPEN); |
718e3744 | 1128 | |
d62a17ae | 1129 | /* Create buffers. */ |
424ab01d | 1130 | peer->ibuf = stream_fifo_new(); |
d62a17ae | 1131 | peer->obuf = stream_fifo_new(); |
424ab01d | 1132 | pthread_mutex_init(&peer->io_mtx, NULL); |
0a91ff55 | 1133 | |
424ab01d | 1134 | /* We use a larger buffer for peer->obuf_work in the event that: |
d62a17ae | 1135 | * - We RX a BGP_UPDATE where the attributes alone are just |
1136 | * under BGP_MAX_PACKET_SIZE | |
1137 | * - The user configures an outbound route-map that does many as-path | |
09f6d019 QY |
1138 | * prepends or adds many communities. At most they can have |
1139 | * CMD_ARGC_MAX args in a route-map so there is a finite limit on how | |
1140 | * large they can make the attributes. | |
d62a17ae | 1141 | * |
1142 | * Having a buffer with BGP_MAX_PACKET_SIZE_OVERFLOW allows us to avoid | |
09f6d019 QY |
1143 | * bounds checking for every single attribute as we construct an |
1144 | * UPDATE. | |
d62a17ae | 1145 | */ |
424ab01d | 1146 | peer->obuf_work = |
d62a17ae | 1147 | stream_new(BGP_MAX_PACKET_SIZE + BGP_MAX_PACKET_SIZE_OVERFLOW); |
74ffbfe6 QY |
1148 | peer->ibuf_work = |
1149 | ringbuf_new(BGP_MAX_PACKET_SIZE * BGP_READ_PACKET_MAX); | |
1150 | ||
d62a17ae | 1151 | peer->scratch = stream_new(BGP_MAX_PACKET_SIZE); |
718e3744 | 1152 | |
d62a17ae | 1153 | bgp_sync_init(peer); |
718e3744 | 1154 | |
d62a17ae | 1155 | /* Get service port number. */ |
1156 | sp = getservbyname("bgp", "tcp"); | |
1157 | peer->port = (sp == NULL) ? BGP_PORT_DEFAULT : ntohs(sp->s_port); | |
718e3744 | 1158 | |
d62a17ae | 1159 | QOBJ_REG(peer, peer); |
1160 | return peer; | |
718e3744 | 1161 | } |
1162 | ||
1ff9a340 DS |
1163 | /* |
1164 | * This function is invoked when a duplicate peer structure associated with | |
1165 | * a neighbor is being deleted. If this about-to-be-deleted structure is | |
1166 | * the one with all the config, then we have to copy over the info. | |
1167 | */ | |
d62a17ae | 1168 | void peer_xfer_config(struct peer *peer_dst, struct peer *peer_src) |
1169 | { | |
1170 | struct peer_af *paf; | |
1171 | afi_t afi; | |
1172 | safi_t safi; | |
1173 | int afidx; | |
1174 | ||
1175 | assert(peer_src); | |
1176 | assert(peer_dst); | |
1177 | ||
1178 | /* The following function is used by both peer group config copy to | |
1179 | * individual peer and when we transfer config | |
1180 | */ | |
1181 | if (peer_src->change_local_as) | |
1182 | peer_dst->change_local_as = peer_src->change_local_as; | |
1183 | ||
1184 | /* peer flags apply */ | |
1185 | peer_dst->flags = peer_src->flags; | |
1186 | peer_dst->cap = peer_src->cap; | |
d62a17ae | 1187 | |
1188 | peer_dst->local_as = peer_src->local_as; | |
d62a17ae | 1189 | peer_dst->port = peer_src->port; |
82417ac2 | 1190 | (void)peer_sort(peer_dst); |
d62a17ae | 1191 | peer_dst->rmap_type = peer_src->rmap_type; |
1192 | ||
1193 | /* Timers */ | |
1194 | peer_dst->holdtime = peer_src->holdtime; | |
1195 | peer_dst->keepalive = peer_src->keepalive; | |
1196 | peer_dst->connect = peer_src->connect; | |
1197 | peer_dst->v_holdtime = peer_src->v_holdtime; | |
1198 | peer_dst->v_keepalive = peer_src->v_keepalive; | |
1199 | peer_dst->routeadv = peer_src->routeadv; | |
1200 | peer_dst->v_routeadv = peer_src->v_routeadv; | |
1201 | ||
1202 | /* password apply */ | |
1203 | if (peer_src->password && !peer_dst->password) | |
1204 | peer_dst->password = | |
1205 | XSTRDUP(MTYPE_PEER_PASSWORD, peer_src->password); | |
1206 | ||
05c7a1cc QY |
1207 | FOREACH_AFI_SAFI (afi, safi) { |
1208 | peer_dst->afc[afi][safi] = peer_src->afc[afi][safi]; | |
1209 | peer_dst->af_flags[afi][safi] = peer_src->af_flags[afi][safi]; | |
1210 | peer_dst->allowas_in[afi][safi] = | |
1211 | peer_src->allowas_in[afi][safi]; | |
1212 | peer_dst->weight[afi][safi] = peer_src->weight[afi][safi]; | |
1213 | } | |
d62a17ae | 1214 | |
1215 | for (afidx = BGP_AF_START; afidx < BGP_AF_MAX; afidx++) { | |
1216 | paf = peer_src->peer_af_array[afidx]; | |
1217 | if (paf != NULL) | |
1218 | peer_af_create(peer_dst, paf->afi, paf->safi); | |
1219 | } | |
1220 | ||
1221 | /* update-source apply */ | |
1222 | if (peer_src->update_source) { | |
1223 | if (peer_dst->update_source) | |
1224 | sockunion_free(peer_dst->update_source); | |
1225 | if (peer_dst->update_if) { | |
1226 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer_dst->update_if); | |
1227 | peer_dst->update_if = NULL; | |
1228 | } | |
1229 | peer_dst->update_source = | |
1230 | sockunion_dup(peer_src->update_source); | |
1231 | } else if (peer_src->update_if) { | |
1232 | if (peer_dst->update_if) | |
1233 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer_dst->update_if); | |
1234 | if (peer_dst->update_source) { | |
1235 | sockunion_free(peer_dst->update_source); | |
1236 | peer_dst->update_source = NULL; | |
1237 | } | |
1238 | peer_dst->update_if = | |
1239 | XSTRDUP(MTYPE_PEER_UPDATE_SOURCE, peer_src->update_if); | |
1240 | } | |
1241 | ||
1242 | if (peer_src->ifname) { | |
1243 | if (peer_dst->ifname) | |
1244 | XFREE(MTYPE_BGP_PEER_IFNAME, peer_dst->ifname); | |
1245 | ||
1246 | peer_dst->ifname = | |
1247 | XSTRDUP(MTYPE_BGP_PEER_IFNAME, peer_src->ifname); | |
1248 | } | |
1249 | } | |
1250 | ||
1251 | static int bgp_peer_conf_if_to_su_update_v4(struct peer *peer, | |
1252 | struct interface *ifp) | |
1253 | { | |
1254 | struct connected *ifc; | |
1255 | struct prefix p; | |
d7c0a89a | 1256 | uint32_t addr; |
d62a17ae | 1257 | struct listnode *node; |
1258 | ||
1259 | /* If our IPv4 address on the interface is /30 or /31, we can derive the | |
1260 | * IPv4 address of the other end. | |
1261 | */ | |
1262 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, ifc)) { | |
1263 | if (ifc->address && (ifc->address->family == AF_INET)) { | |
1264 | PREFIX_COPY_IPV4(&p, CONNECTED_PREFIX(ifc)); | |
1265 | if (p.prefixlen == 30) { | |
1266 | peer->su.sa.sa_family = AF_INET; | |
1267 | addr = ntohl(p.u.prefix4.s_addr); | |
1268 | if (addr % 4 == 1) | |
1269 | peer->su.sin.sin_addr.s_addr = | |
1270 | htonl(addr + 1); | |
1271 | else if (addr % 4 == 2) | |
1272 | peer->su.sin.sin_addr.s_addr = | |
1273 | htonl(addr - 1); | |
8ffedcea | 1274 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
d62a17ae | 1275 | peer->su.sin.sin_len = |
1276 | sizeof(struct sockaddr_in); | |
8ffedcea | 1277 | #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */ |
d62a17ae | 1278 | return 1; |
1279 | } else if (p.prefixlen == 31) { | |
1280 | peer->su.sa.sa_family = AF_INET; | |
1281 | addr = ntohl(p.u.prefix4.s_addr); | |
1282 | if (addr % 2 == 0) | |
1283 | peer->su.sin.sin_addr.s_addr = | |
1284 | htonl(addr + 1); | |
1285 | else | |
1286 | peer->su.sin.sin_addr.s_addr = | |
1287 | htonl(addr - 1); | |
8ffedcea | 1288 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
d62a17ae | 1289 | peer->su.sin.sin_len = |
1290 | sizeof(struct sockaddr_in); | |
8ffedcea | 1291 | #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */ |
d62a17ae | 1292 | return 1; |
1293 | } else if (bgp_debug_neighbor_events(peer)) | |
1294 | zlog_debug( | |
1295 | "%s: IPv4 interface address is not /30 or /31, v4 session not started", | |
1296 | peer->conf_if); | |
1297 | } | |
1298 | } | |
1299 | ||
1300 | return 0; | |
1301 | } | |
1302 | ||
1303 | static int bgp_peer_conf_if_to_su_update_v6(struct peer *peer, | |
1304 | struct interface *ifp) | |
1305 | { | |
1306 | struct nbr_connected *ifc_nbr; | |
1307 | ||
1308 | /* Have we learnt the peer's IPv6 link-local address? */ | |
1309 | if (ifp->nbr_connected | |
1310 | && (ifc_nbr = listnode_head(ifp->nbr_connected))) { | |
1311 | peer->su.sa.sa_family = AF_INET6; | |
1312 | memcpy(&peer->su.sin6.sin6_addr, &ifc_nbr->address->u.prefix, | |
1313 | sizeof(struct in6_addr)); | |
a80beece | 1314 | #ifdef SIN6_LEN |
d62a17ae | 1315 | peer->su.sin6.sin6_len = sizeof(struct sockaddr_in6); |
a80beece | 1316 | #endif |
d62a17ae | 1317 | peer->su.sin6.sin6_scope_id = ifp->ifindex; |
1318 | return 1; | |
1319 | } | |
8ffedcea | 1320 | |
d62a17ae | 1321 | return 0; |
89ca90fa | 1322 | } |
1323 | ||
1324 | /* | |
1325 | * Set or reset the peer address socketunion structure based on the | |
1326 | * learnt/derived peer address. If the address has changed, update the | |
1327 | * password on the listen socket, if needed. | |
1328 | */ | |
d62a17ae | 1329 | void bgp_peer_conf_if_to_su_update(struct peer *peer) |
1330 | { | |
1331 | struct interface *ifp; | |
1332 | int prev_family; | |
1333 | int peer_addr_updated = 0; | |
1334 | ||
1335 | if (!peer->conf_if) | |
1336 | return; | |
1337 | ||
d12b745c DS |
1338 | /* |
1339 | * Our peer structure is stored in the bgp->peerhash | |
1340 | * release it before we modify anything. | |
1341 | */ | |
1342 | hash_release(peer->bgp->peerhash, peer); | |
1343 | ||
d62a17ae | 1344 | prev_family = peer->su.sa.sa_family; |
1345 | if ((ifp = if_lookup_by_name(peer->conf_if, peer->bgp->vrf_id))) { | |
1346 | peer->ifp = ifp; | |
1347 | /* If BGP unnumbered is not "v6only", we first see if we can | |
1348 | * derive the | |
1349 | * peer's IPv4 address. | |
1350 | */ | |
1351 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_IFPEER_V6ONLY)) | |
1352 | peer_addr_updated = | |
1353 | bgp_peer_conf_if_to_su_update_v4(peer, ifp); | |
1354 | ||
1355 | /* If "v6only" or we can't derive peer's IPv4 address, see if | |
1356 | * we've | |
1357 | * learnt the peer's IPv6 link-local address. This is from the | |
1358 | * source | |
1359 | * IPv6 address in router advertisement. | |
1360 | */ | |
1361 | if (!peer_addr_updated) | |
1362 | peer_addr_updated = | |
1363 | bgp_peer_conf_if_to_su_update_v6(peer, ifp); | |
1364 | } | |
1365 | /* If we could derive the peer address, we may need to install the | |
1366 | * password | |
1367 | * configured for the peer, if any, on the listen socket. Otherwise, | |
1368 | * mark | |
1369 | * that peer's address is not available and uninstall the password, if | |
1370 | * needed. | |
1371 | */ | |
1372 | if (peer_addr_updated) { | |
a14810f4 PM |
1373 | if (CHECK_FLAG(peer->flags, PEER_FLAG_PASSWORD) |
1374 | && prev_family == AF_UNSPEC) | |
d62a17ae | 1375 | bgp_md5_set(peer); |
1376 | } else { | |
a14810f4 PM |
1377 | if (CHECK_FLAG(peer->flags, PEER_FLAG_PASSWORD) |
1378 | && prev_family != AF_UNSPEC) | |
d62a17ae | 1379 | bgp_md5_unset(peer); |
1380 | peer->su.sa.sa_family = AF_UNSPEC; | |
1381 | memset(&peer->su.sin6.sin6_addr, 0, sizeof(struct in6_addr)); | |
1382 | } | |
1383 | ||
d12b745c DS |
1384 | /* |
1385 | * Since our su changed we need to del/add peer to the peerhash | |
1386 | */ | |
d62a17ae | 1387 | hash_get(peer->bgp->peerhash, peer, hash_alloc_intern); |
a80beece DS |
1388 | } |
1389 | ||
318cac96 DW |
1390 | static void bgp_recalculate_afi_safi_bestpaths(struct bgp *bgp, afi_t afi, |
1391 | safi_t safi) | |
1392 | { | |
1393 | struct bgp_node *rn, *nrn; | |
1394 | ||
1395 | for (rn = bgp_table_top(bgp->rib[afi][safi]); rn; | |
1396 | rn = bgp_route_next(rn)) { | |
1397 | if (rn->info != NULL) { | |
1398 | /* Special handling for 2-level routing | |
1399 | * tables. */ | |
a4d82a8a | 1400 | if (safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP |
318cac96 | 1401 | || safi == SAFI_EVPN) { |
a4d82a8a PZ |
1402 | for (nrn = bgp_table_top( |
1403 | (struct bgp_table *)(rn->info)); | |
1404 | nrn; nrn = bgp_route_next(nrn)) | |
1405 | bgp_process(bgp, nrn, afi, safi); | |
318cac96 DW |
1406 | } else |
1407 | bgp_process(bgp, rn, afi, safi); | |
1408 | } | |
1409 | } | |
1410 | } | |
1411 | ||
06370dac DW |
1412 | /* Force a bestpath recalculation for all prefixes. This is used |
1413 | * when 'bgp bestpath' commands are entered. | |
1414 | */ | |
d62a17ae | 1415 | void bgp_recalculate_all_bestpaths(struct bgp *bgp) |
1416 | { | |
1417 | afi_t afi; | |
1418 | safi_t safi; | |
d62a17ae | 1419 | |
05c7a1cc QY |
1420 | FOREACH_AFI_SAFI (afi, safi) { |
1421 | bgp_recalculate_afi_safi_bestpaths(bgp, afi, safi); | |
d62a17ae | 1422 | } |
06370dac DW |
1423 | } |
1424 | ||
718e3744 | 1425 | /* Create new BGP peer. */ |
d62a17ae | 1426 | struct peer *peer_create(union sockunion *su, const char *conf_if, |
1427 | struct bgp *bgp, as_t local_as, as_t remote_as, | |
1428 | int as_type, afi_t afi, safi_t safi, | |
1429 | struct peer_group *group) | |
1430 | { | |
1431 | int active; | |
1432 | struct peer *peer; | |
1433 | char buf[SU_ADDRSTRLEN]; | |
1434 | ||
1435 | peer = peer_new(bgp); | |
1436 | if (conf_if) { | |
1437 | peer->conf_if = XSTRDUP(MTYPE_PEER_CONF_IF, conf_if); | |
1438 | bgp_peer_conf_if_to_su_update(peer); | |
1439 | if (peer->host) | |
1440 | XFREE(MTYPE_BGP_PEER_HOST, peer->host); | |
1441 | peer->host = XSTRDUP(MTYPE_BGP_PEER_HOST, conf_if); | |
1442 | } else if (su) { | |
1443 | peer->su = *su; | |
1444 | sockunion2str(su, buf, SU_ADDRSTRLEN); | |
1445 | if (peer->host) | |
1446 | XFREE(MTYPE_BGP_PEER_HOST, peer->host); | |
1447 | peer->host = XSTRDUP(MTYPE_BGP_PEER_HOST, buf); | |
1448 | } | |
1449 | peer->local_as = local_as; | |
1450 | peer->as = remote_as; | |
1451 | peer->as_type = as_type; | |
1452 | peer->local_id = bgp->router_id; | |
1453 | peer->v_holdtime = bgp->default_holdtime; | |
1454 | peer->v_keepalive = bgp->default_keepalive; | |
b90a8e13 PM |
1455 | peer->v_routeadv = (peer_sort(peer) == BGP_PEER_IBGP) |
1456 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
1457 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 1458 | |
1459 | peer = peer_lock(peer); /* bgp peer list reference */ | |
1460 | peer->group = group; | |
1461 | listnode_add_sort(bgp->peer, peer); | |
1462 | hash_get(bgp->peerhash, peer, hash_alloc_intern); | |
1463 | ||
4961a5a2 | 1464 | /* Adjust update-group coalesce timer heuristics for # peers. */ |
37a333fe | 1465 | if (bgp->heuristic_coalesce) { |
14b8641a QY |
1466 | long ct = BGP_DEFAULT_SUBGROUP_COALESCE_TIME |
1467 | + (bgp->peer->count | |
1468 | * BGP_PEER_ADJUST_SUBGROUP_COALESCE_TIME); | |
1469 | bgp->coalesce_time = MIN(BGP_MAX_SUBGROUP_COALESCE_TIME, ct); | |
1470 | } | |
4961a5a2 | 1471 | |
d62a17ae | 1472 | active = peer_active(peer); |
1473 | ||
1474 | /* Last read and reset time set */ | |
1475 | peer->readtime = peer->resettime = bgp_clock(); | |
1476 | ||
1477 | /* Default TTL set. */ | |
1478 | peer->ttl = (peer->sort == BGP_PEER_IBGP) ? MAXTTL : 1; | |
1479 | ||
1480 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); | |
1481 | ||
1482 | if (afi && safi) { | |
1483 | peer->afc[afi][safi] = 1; | |
1484 | peer_af_create(peer, afi, safi); | |
1485 | } | |
1486 | ||
f26845f9 QY |
1487 | /* auto shutdown if configured */ |
1488 | if (bgp->autoshutdown) | |
1489 | peer_flag_set(peer, PEER_FLAG_SHUTDOWN); | |
d62a17ae | 1490 | /* Set up peer's events and timers. */ |
f26845f9 | 1491 | else if (!active && peer_active(peer)) |
d62a17ae | 1492 | bgp_timer_set(peer); |
1493 | ||
1494 | return peer; | |
718e3744 | 1495 | } |
1496 | ||
dd793e4a | 1497 | /* Make accept BGP peer. This function is only called from the test code */ |
d62a17ae | 1498 | struct peer *peer_create_accept(struct bgp *bgp) |
eb821189 | 1499 | { |
d62a17ae | 1500 | struct peer *peer; |
eb821189 | 1501 | |
d62a17ae | 1502 | peer = peer_new(bgp); |
1ff9a340 | 1503 | |
d62a17ae | 1504 | peer = peer_lock(peer); /* bgp peer list reference */ |
1505 | listnode_add_sort(bgp->peer, peer); | |
eb821189 | 1506 | |
d62a17ae | 1507 | return peer; |
eb821189 | 1508 | } |
1509 | ||
318cac96 DW |
1510 | /* |
1511 | * Return true if we have a peer configured to use this afi/safi | |
1512 | */ | |
1513 | int bgp_afi_safi_peer_exists(struct bgp *bgp, afi_t afi, safi_t safi) | |
1514 | { | |
1515 | struct listnode *node; | |
1516 | struct peer *peer; | |
1517 | ||
1518 | for (ALL_LIST_ELEMENTS_RO(bgp->peer, node, peer)) { | |
1519 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE)) | |
1520 | continue; | |
1521 | ||
1522 | if (peer->afc[afi][safi]) | |
1523 | return 1; | |
1524 | } | |
1525 | ||
1526 | return 0; | |
1527 | } | |
1528 | ||
718e3744 | 1529 | /* Change peer's AS number. */ |
d62a17ae | 1530 | void peer_as_change(struct peer *peer, as_t as, int as_specified) |
1531 | { | |
1532 | bgp_peer_sort_t type; | |
d62a17ae | 1533 | |
1534 | /* Stop peer. */ | |
1535 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
1536 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
1537 | peer->last_reset = PEER_DOWN_REMOTE_AS_CHANGE; | |
1538 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
1539 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
1540 | } else | |
1541 | bgp_session_reset(peer); | |
1542 | } | |
1543 | type = peer_sort(peer); | |
1544 | peer->as = as; | |
1545 | peer->as_type = as_specified; | |
1546 | ||
1547 | if (bgp_config_check(peer->bgp, BGP_CONFIG_CONFEDERATION) | |
1548 | && !bgp_confederation_peers_check(peer->bgp, as) | |
1549 | && peer->bgp->as != as) | |
1550 | peer->local_as = peer->bgp->confed_id; | |
1551 | else | |
1552 | peer->local_as = peer->bgp->as; | |
1553 | ||
1554 | /* Advertisement-interval reset */ | |
b90a8e13 PM |
1555 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_ROUTEADV)) { |
1556 | peer->v_routeadv = (peer_sort(peer) == BGP_PEER_IBGP) | |
1557 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
1558 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 1559 | } |
b90a8e13 | 1560 | |
d62a17ae | 1561 | /* TTL reset */ |
1562 | if (peer_sort(peer) == BGP_PEER_IBGP) | |
1563 | peer->ttl = MAXTTL; | |
1564 | else if (type == BGP_PEER_IBGP) | |
1565 | peer->ttl = 1; | |
1566 | ||
1567 | /* reflector-client reset */ | |
1568 | if (peer_sort(peer) != BGP_PEER_IBGP) { | |
1569 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_UNICAST], | |
1570 | PEER_FLAG_REFLECTOR_CLIENT); | |
1571 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_MULTICAST], | |
1572 | PEER_FLAG_REFLECTOR_CLIENT); | |
1573 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_LABELED_UNICAST], | |
1574 | PEER_FLAG_REFLECTOR_CLIENT); | |
1575 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_MPLS_VPN], | |
1576 | PEER_FLAG_REFLECTOR_CLIENT); | |
1577 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_ENCAP], | |
1578 | PEER_FLAG_REFLECTOR_CLIENT); | |
7c40bf39 | 1579 | UNSET_FLAG(peer->af_flags[AFI_IP][SAFI_FLOWSPEC], |
1580 | PEER_FLAG_REFLECTOR_CLIENT); | |
d62a17ae | 1581 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_UNICAST], |
1582 | PEER_FLAG_REFLECTOR_CLIENT); | |
1583 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_MULTICAST], | |
1584 | PEER_FLAG_REFLECTOR_CLIENT); | |
1585 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_LABELED_UNICAST], | |
1586 | PEER_FLAG_REFLECTOR_CLIENT); | |
1587 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_MPLS_VPN], | |
1588 | PEER_FLAG_REFLECTOR_CLIENT); | |
1589 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_ENCAP], | |
1590 | PEER_FLAG_REFLECTOR_CLIENT); | |
7c40bf39 | 1591 | UNSET_FLAG(peer->af_flags[AFI_IP6][SAFI_FLOWSPEC], |
1592 | PEER_FLAG_REFLECTOR_CLIENT); | |
d62a17ae | 1593 | UNSET_FLAG(peer->af_flags[AFI_L2VPN][SAFI_EVPN], |
1594 | PEER_FLAG_REFLECTOR_CLIENT); | |
1595 | } | |
1596 | ||
1597 | /* local-as reset */ | |
1598 | if (peer_sort(peer) != BGP_PEER_EBGP) { | |
1599 | peer->change_local_as = 0; | |
a14810f4 PM |
1600 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS); |
1601 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
1602 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
d62a17ae | 1603 | } |
718e3744 | 1604 | } |
1605 | ||
1606 | /* If peer does not exist, create new one. If peer already exists, | |
1607 | set AS number to the peer. */ | |
d62a17ae | 1608 | int peer_remote_as(struct bgp *bgp, union sockunion *su, const char *conf_if, |
1609 | as_t *as, int as_type, afi_t afi, safi_t safi) | |
1610 | { | |
1611 | struct peer *peer; | |
1612 | as_t local_as; | |
1613 | ||
1614 | if (conf_if) | |
1615 | peer = peer_lookup_by_conf_if(bgp, conf_if); | |
1616 | else | |
1617 | peer = peer_lookup(bgp, su); | |
1618 | ||
1619 | if (peer) { | |
1620 | /* Not allowed for a dynamic peer. */ | |
1621 | if (peer_dynamic_neighbor(peer)) { | |
1622 | *as = peer->as; | |
1623 | return BGP_ERR_INVALID_FOR_DYNAMIC_PEER; | |
1624 | } | |
718e3744 | 1625 | |
d62a17ae | 1626 | /* When this peer is a member of peer-group. */ |
1627 | if (peer->group) { | |
1628 | if (peer->group->conf->as) { | |
1629 | /* Return peer group's AS number. */ | |
1630 | *as = peer->group->conf->as; | |
1631 | return BGP_ERR_PEER_GROUP_MEMBER; | |
1632 | } | |
1633 | if (peer_sort(peer->group->conf) == BGP_PEER_IBGP) { | |
1634 | if ((as_type != AS_INTERNAL) | |
1635 | && (bgp->as != *as)) { | |
1636 | *as = peer->as; | |
1637 | return BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT; | |
1638 | } | |
1639 | } else { | |
1640 | if ((as_type != AS_EXTERNAL) | |
1641 | && (bgp->as == *as)) { | |
1642 | *as = peer->as; | |
1643 | return BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT; | |
1644 | } | |
1645 | } | |
1646 | } | |
93406d87 | 1647 | |
d62a17ae | 1648 | /* Existing peer's AS number change. */ |
1649 | if (((peer->as_type == AS_SPECIFIED) && peer->as != *as) | |
1650 | || (peer->as_type != as_type)) | |
1651 | peer_as_change(peer, *as, as_type); | |
1652 | } else { | |
1653 | if (conf_if) | |
1654 | return BGP_ERR_NO_INTERFACE_CONFIG; | |
1655 | ||
1656 | /* If the peer is not part of our confederation, and its not an | |
1657 | iBGP peer then spoof the source AS */ | |
1658 | if (bgp_config_check(bgp, BGP_CONFIG_CONFEDERATION) | |
1659 | && !bgp_confederation_peers_check(bgp, *as) | |
1660 | && bgp->as != *as) | |
1661 | local_as = bgp->confed_id; | |
1662 | else | |
1663 | local_as = bgp->as; | |
1664 | ||
1665 | /* If this is IPv4 unicast configuration and "no bgp default | |
1666 | ipv4-unicast" is specified. */ | |
1667 | ||
1668 | if (bgp_flag_check(bgp, BGP_FLAG_NO_DEFAULT_IPV4) | |
1669 | && afi == AFI_IP && safi == SAFI_UNICAST) | |
1670 | peer_create(su, conf_if, bgp, local_as, *as, as_type, 0, | |
1671 | 0, NULL); | |
1672 | else | |
1673 | peer_create(su, conf_if, bgp, local_as, *as, as_type, | |
1674 | afi, safi, NULL); | |
1675 | } | |
718e3744 | 1676 | |
d62a17ae | 1677 | return 0; |
1678 | } | |
718e3744 | 1679 | |
9790f44f DS |
1680 | static void peer_group2peer_config_copy_af(struct peer_group *group, |
1681 | struct peer *peer, afi_t afi, | |
1682 | safi_t safi) | |
1683 | { | |
1684 | int in = FILTER_IN; | |
1685 | int out = FILTER_OUT; | |
4c391142 | 1686 | uint32_t flags_tmp; |
e7103a96 PM |
1687 | uint32_t pflags_ovrd; |
1688 | uint8_t *pfilter_ovrd; | |
9790f44f | 1689 | struct peer *conf; |
9790f44f DS |
1690 | |
1691 | conf = group->conf; | |
e7103a96 PM |
1692 | pflags_ovrd = peer->af_flags_override[afi][safi]; |
1693 | pfilter_ovrd = &peer->filter_override[afi][safi][in]; | |
9790f44f DS |
1694 | |
1695 | /* peer af_flags apply */ | |
4c391142 PM |
1696 | flags_tmp = conf->af_flags[afi][safi] & ~pflags_ovrd; |
1697 | flags_tmp ^= conf->af_flags_invert[afi][safi] | |
1698 | ^ peer->af_flags_invert[afi][safi]; | |
1699 | flags_tmp &= ~pflags_ovrd; | |
1700 | ||
1701 | UNSET_FLAG(peer->af_flags[afi][safi], ~pflags_ovrd); | |
1702 | SET_FLAG(peer->af_flags[afi][safi], flags_tmp); | |
1703 | SET_FLAG(peer->af_flags_invert[afi][safi], | |
1704 | conf->af_flags_invert[afi][safi]); | |
9790f44f DS |
1705 | |
1706 | /* maximum-prefix */ | |
e7103a96 PM |
1707 | if (!CHECK_FLAG(pflags_ovrd, PEER_FLAG_MAX_PREFIX)) { |
1708 | PEER_ATTR_INHERIT(peer, group, pmax[afi][safi]); | |
1709 | PEER_ATTR_INHERIT(peer, group, pmax_threshold[afi][safi]); | |
1710 | PEER_ATTR_INHERIT(peer, group, pmax_restart[afi][safi]); | |
1711 | } | |
9790f44f DS |
1712 | |
1713 | /* allowas-in */ | |
e7103a96 PM |
1714 | if (!CHECK_FLAG(pflags_ovrd, PEER_FLAG_ALLOWAS_IN)) |
1715 | PEER_ATTR_INHERIT(peer, group, allowas_in[afi][safi]); | |
9790f44f DS |
1716 | |
1717 | /* weight */ | |
e7103a96 PM |
1718 | if (!CHECK_FLAG(pflags_ovrd, PEER_FLAG_WEIGHT)) |
1719 | PEER_ATTR_INHERIT(peer, group, weight[afi][safi]); | |
9790f44f DS |
1720 | |
1721 | /* default-originate route-map */ | |
e7103a96 PM |
1722 | if (!CHECK_FLAG(pflags_ovrd, PEER_FLAG_DEFAULT_ORIGINATE)) { |
1723 | PEER_STR_ATTR_INHERIT(peer, group, default_rmap[afi][safi].name, | |
1724 | MTYPE_ROUTE_MAP_NAME); | |
1725 | PEER_ATTR_INHERIT(peer, group, default_rmap[afi][safi].map); | |
9790f44f DS |
1726 | } |
1727 | ||
1728 | /* inbound filter apply */ | |
e7103a96 PM |
1729 | if (!CHECK_FLAG(pfilter_ovrd[in], PEER_FT_DISTRIBUTE_LIST)) { |
1730 | PEER_STR_ATTR_INHERIT(peer, group, | |
1731 | filter[afi][safi].dlist[in].name, | |
1732 | MTYPE_BGP_FILTER_NAME); | |
1733 | PEER_ATTR_INHERIT(peer, group, | |
1734 | filter[afi][safi].dlist[in].alist); | |
9790f44f DS |
1735 | } |
1736 | ||
e7103a96 PM |
1737 | if (!CHECK_FLAG(pfilter_ovrd[in], PEER_FT_PREFIX_LIST)) { |
1738 | PEER_STR_ATTR_INHERIT(peer, group, | |
1739 | filter[afi][safi].plist[in].name, | |
1740 | MTYPE_BGP_FILTER_NAME); | |
1741 | PEER_ATTR_INHERIT(peer, group, | |
1742 | filter[afi][safi].plist[in].plist); | |
9790f44f DS |
1743 | } |
1744 | ||
e7103a96 PM |
1745 | if (!CHECK_FLAG(pfilter_ovrd[in], PEER_FT_FILTER_LIST)) { |
1746 | PEER_STR_ATTR_INHERIT(peer, group, | |
1747 | filter[afi][safi].aslist[in].name, | |
1748 | MTYPE_BGP_FILTER_NAME); | |
1749 | PEER_ATTR_INHERIT(peer, group, | |
1750 | filter[afi][safi].aslist[in].aslist); | |
9790f44f DS |
1751 | } |
1752 | ||
e7103a96 PM |
1753 | if (!CHECK_FLAG(pfilter_ovrd[RMAP_IN], PEER_FT_ROUTE_MAP)) { |
1754 | PEER_STR_ATTR_INHERIT(peer, group, | |
1755 | filter[afi][safi].map[in].name, | |
1756 | MTYPE_BGP_FILTER_NAME); | |
1757 | PEER_ATTR_INHERIT(peer, group, | |
1758 | filter[afi][safi].map[RMAP_IN].map); | |
9790f44f DS |
1759 | } |
1760 | ||
1761 | /* outbound filter apply */ | |
e7103a96 PM |
1762 | if (!CHECK_FLAG(pfilter_ovrd[out], PEER_FT_DISTRIBUTE_LIST)) { |
1763 | PEER_STR_ATTR_INHERIT(peer, group, | |
1764 | filter[afi][safi].dlist[out].name, | |
1765 | MTYPE_BGP_FILTER_NAME); | |
1766 | PEER_ATTR_INHERIT(peer, group, | |
1767 | filter[afi][safi].dlist[out].alist); | |
9790f44f DS |
1768 | } |
1769 | ||
e7103a96 PM |
1770 | if (!CHECK_FLAG(pfilter_ovrd[out], PEER_FT_PREFIX_LIST)) { |
1771 | PEER_STR_ATTR_INHERIT(peer, group, | |
1772 | filter[afi][safi].plist[out].name, | |
1773 | MTYPE_BGP_FILTER_NAME); | |
1774 | PEER_ATTR_INHERIT(peer, group, | |
1775 | filter[afi][safi].plist[out].plist); | |
9790f44f DS |
1776 | } |
1777 | ||
e7103a96 PM |
1778 | if (!CHECK_FLAG(pfilter_ovrd[out], PEER_FT_FILTER_LIST)) { |
1779 | PEER_STR_ATTR_INHERIT(peer, group, | |
1780 | filter[afi][safi].aslist[out].name, | |
1781 | MTYPE_BGP_FILTER_NAME); | |
1782 | PEER_ATTR_INHERIT(peer, group, | |
1783 | filter[afi][safi].aslist[out].aslist); | |
1784 | } | |
1785 | ||
1786 | if (!CHECK_FLAG(pfilter_ovrd[RMAP_OUT], PEER_FT_ROUTE_MAP)) { | |
1787 | PEER_STR_ATTR_INHERIT(peer, group, | |
1788 | filter[afi][safi].map[RMAP_OUT].name, | |
1789 | MTYPE_BGP_FILTER_NAME); | |
1790 | PEER_ATTR_INHERIT(peer, group, | |
1791 | filter[afi][safi].map[RMAP_OUT].map); | |
1792 | } | |
1793 | ||
1794 | /* nondirectional filter apply */ | |
1795 | if (!CHECK_FLAG(pfilter_ovrd[0], PEER_FT_UNSUPPRESS_MAP)) { | |
1796 | PEER_STR_ATTR_INHERIT(peer, group, filter[afi][safi].usmap.name, | |
1797 | MTYPE_BGP_FILTER_NAME); | |
1798 | PEER_ATTR_INHERIT(peer, group, filter[afi][safi].usmap.map); | |
9790f44f DS |
1799 | } |
1800 | } | |
1801 | ||
1802 | static int peer_activate_af(struct peer *peer, afi_t afi, safi_t safi) | |
d62a17ae | 1803 | { |
1804 | int active; | |
718e3744 | 1805 | |
d62a17ae | 1806 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
af4c2728 | 1807 | flog_err(BGP_ERR_PEER_GROUP, "%s was called for peer-group %s", |
14454c9f | 1808 | __func__, peer->host); |
d62a17ae | 1809 | return 1; |
1810 | } | |
3f9c7369 | 1811 | |
d62a17ae | 1812 | /* Do not activate a peer for both SAFI_UNICAST and SAFI_LABELED_UNICAST |
1813 | */ | |
1814 | if ((safi == SAFI_UNICAST && peer->afc[afi][SAFI_LABELED_UNICAST]) | |
1815 | || (safi == SAFI_LABELED_UNICAST && peer->afc[afi][SAFI_UNICAST])) | |
1816 | return BGP_ERR_PEER_SAFI_CONFLICT; | |
1817 | ||
1818 | /* Nothing to do if we've already activated this peer */ | |
1819 | if (peer->afc[afi][safi]) | |
1820 | return 0; | |
1821 | ||
1822 | if (peer_af_create(peer, afi, safi) == NULL) | |
1823 | return 1; | |
1824 | ||
1825 | active = peer_active(peer); | |
1826 | peer->afc[afi][safi] = 1; | |
1827 | ||
9790f44f | 1828 | if (peer->group) |
a4d82a8a | 1829 | peer_group2peer_config_copy_af(peer->group, peer, afi, safi); |
9790f44f | 1830 | |
d62a17ae | 1831 | if (!active && peer_active(peer)) { |
1832 | bgp_timer_set(peer); | |
1833 | } else { | |
1834 | if (peer->status == Established) { | |
1835 | if (CHECK_FLAG(peer->cap, PEER_CAP_DYNAMIC_RCV)) { | |
1836 | peer->afc_adv[afi][safi] = 1; | |
1837 | bgp_capability_send(peer, afi, safi, | |
1838 | CAPABILITY_CODE_MP, | |
1839 | CAPABILITY_ACTION_SET); | |
1840 | if (peer->afc_recv[afi][safi]) { | |
1841 | peer->afc_nego[afi][safi] = 1; | |
1842 | bgp_announce_route(peer, afi, safi); | |
1843 | } | |
1844 | } else { | |
1845 | peer->last_reset = PEER_DOWN_AF_ACTIVATE; | |
1846 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
1847 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
1848 | } | |
1849 | } | |
64c1a9b5 DS |
1850 | if (peer->status == OpenSent || peer->status == OpenConfirm) { |
1851 | peer->last_reset = PEER_DOWN_AF_ACTIVATE; | |
1852 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
1853 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
1854 | } | |
d62a17ae | 1855 | } |
04b6bdc0 | 1856 | |
d62a17ae | 1857 | return 0; |
1858 | } | |
9e08021c | 1859 | |
d62a17ae | 1860 | /* Activate the peer or peer group for specified AFI and SAFI. */ |
1861 | int peer_activate(struct peer *peer, afi_t afi, safi_t safi) | |
1862 | { | |
1863 | int ret = 0; | |
1864 | struct peer_group *group; | |
1865 | struct listnode *node, *nnode; | |
1866 | struct peer *tmp_peer; | |
318cac96 | 1867 | struct bgp *bgp; |
d62a17ae | 1868 | |
1869 | /* Nothing to do if we've already activated this peer */ | |
1870 | if (peer->afc[afi][safi]) | |
1871 | return ret; | |
1872 | ||
318cac96 DW |
1873 | bgp = peer->bgp; |
1874 | ||
d62a17ae | 1875 | /* This is a peer-group so activate all of the members of the |
1876 | * peer-group as well */ | |
1877 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
1878 | ||
1879 | /* Do not activate a peer for both SAFI_UNICAST and | |
1880 | * SAFI_LABELED_UNICAST */ | |
1881 | if ((safi == SAFI_UNICAST | |
1882 | && peer->afc[afi][SAFI_LABELED_UNICAST]) | |
1883 | || (safi == SAFI_LABELED_UNICAST | |
1884 | && peer->afc[afi][SAFI_UNICAST])) | |
1885 | return BGP_ERR_PEER_SAFI_CONFLICT; | |
1886 | ||
1887 | peer->afc[afi][safi] = 1; | |
1888 | group = peer->group; | |
1889 | ||
1890 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, tmp_peer)) { | |
9790f44f | 1891 | ret |= peer_activate_af(tmp_peer, afi, safi); |
d62a17ae | 1892 | } |
1893 | } else { | |
9790f44f | 1894 | ret |= peer_activate_af(peer, afi, safi); |
d62a17ae | 1895 | } |
718e3744 | 1896 | |
a4d82a8a PZ |
1897 | /* If this is the first peer to be activated for this |
1898 | * afi/labeled-unicast recalc bestpaths to trigger label allocation */ | |
1899 | if (safi == SAFI_LABELED_UNICAST | |
1900 | && !bgp->allocate_mpls_labels[afi][SAFI_UNICAST]) { | |
318cac96 DW |
1901 | |
1902 | if (BGP_DEBUG(zebra, ZEBRA)) | |
a4d82a8a PZ |
1903 | zlog_info( |
1904 | "peer(s) are now active for labeled-unicast, allocate MPLS labels"); | |
318cac96 DW |
1905 | |
1906 | bgp->allocate_mpls_labels[afi][SAFI_UNICAST] = 1; | |
1907 | bgp_recalculate_afi_safi_bestpaths(bgp, afi, SAFI_UNICAST); | |
1908 | } | |
1909 | ||
b98f7728 PG |
1910 | if (safi == SAFI_FLOWSPEC) { |
1911 | /* connect to table manager */ | |
6818e7e5 | 1912 | bgp_zebra_init_tm_connect(bgp); |
b98f7728 | 1913 | } |
d62a17ae | 1914 | return ret; |
718e3744 | 1915 | } |
6b0655a2 | 1916 | |
d62a17ae | 1917 | static int non_peergroup_deactivate_af(struct peer *peer, afi_t afi, |
1918 | safi_t safi) | |
718e3744 | 1919 | { |
d62a17ae | 1920 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
af4c2728 | 1921 | flog_err(BGP_ERR_PEER_GROUP, "%s was called for peer-group %s", |
14454c9f | 1922 | __func__, peer->host); |
d62a17ae | 1923 | return 1; |
1924 | } | |
718e3744 | 1925 | |
d62a17ae | 1926 | /* Nothing to do if we've already deactivated this peer */ |
1927 | if (!peer->afc[afi][safi]) | |
1928 | return 0; | |
718e3744 | 1929 | |
d62a17ae | 1930 | /* De-activate the address family configuration. */ |
1931 | peer->afc[afi][safi] = 0; | |
718e3744 | 1932 | |
d62a17ae | 1933 | if (peer_af_delete(peer, afi, safi) != 0) { |
af4c2728 | 1934 | flog_err(BGP_ERR_PEER_DELETE, |
14454c9f DS |
1935 | "couldn't delete af structure for peer %s", |
1936 | peer->host); | |
d62a17ae | 1937 | return 1; |
1938 | } | |
718e3744 | 1939 | |
d62a17ae | 1940 | if (peer->status == Established) { |
1941 | if (CHECK_FLAG(peer->cap, PEER_CAP_DYNAMIC_RCV)) { | |
1942 | peer->afc_adv[afi][safi] = 0; | |
1943 | peer->afc_nego[afi][safi] = 0; | |
1944 | ||
1945 | if (peer_active_nego(peer)) { | |
1946 | bgp_capability_send(peer, afi, safi, | |
1947 | CAPABILITY_CODE_MP, | |
1948 | CAPABILITY_ACTION_UNSET); | |
1949 | bgp_clear_route(peer, afi, safi); | |
1950 | peer->pcount[afi][safi] = 0; | |
1951 | } else { | |
1952 | peer->last_reset = PEER_DOWN_NEIGHBOR_DELETE; | |
1953 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
1954 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
1955 | } | |
1956 | } else { | |
1957 | peer->last_reset = PEER_DOWN_NEIGHBOR_DELETE; | |
1958 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
1959 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
1960 | } | |
1961 | } | |
718e3744 | 1962 | |
d62a17ae | 1963 | return 0; |
1964 | } | |
718e3744 | 1965 | |
d62a17ae | 1966 | int peer_deactivate(struct peer *peer, afi_t afi, safi_t safi) |
718e3744 | 1967 | { |
d62a17ae | 1968 | int ret = 0; |
1969 | struct peer_group *group; | |
1970 | struct peer *tmp_peer; | |
1971 | struct listnode *node, *nnode; | |
318cac96 | 1972 | struct bgp *bgp; |
718e3744 | 1973 | |
d62a17ae | 1974 | /* Nothing to do if we've already de-activated this peer */ |
1975 | if (!peer->afc[afi][safi]) | |
1976 | return ret; | |
718e3744 | 1977 | |
d62a17ae | 1978 | /* This is a peer-group so de-activate all of the members of the |
1979 | * peer-group as well */ | |
1980 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
1981 | peer->afc[afi][safi] = 0; | |
1982 | group = peer->group; | |
718e3744 | 1983 | |
d62a17ae | 1984 | if (peer_af_delete(peer, afi, safi) != 0) { |
af4c2728 | 1985 | flog_err(BGP_ERR_PEER_DELETE, |
14454c9f DS |
1986 | "couldn't delete af structure for peer %s", |
1987 | peer->host); | |
d62a17ae | 1988 | } |
0299c004 | 1989 | |
d62a17ae | 1990 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, tmp_peer)) { |
1991 | ret |= non_peergroup_deactivate_af(tmp_peer, afi, safi); | |
1992 | } | |
1993 | } else { | |
1994 | ret |= non_peergroup_deactivate_af(peer, afi, safi); | |
1995 | } | |
718e3744 | 1996 | |
318cac96 DW |
1997 | bgp = peer->bgp; |
1998 | ||
a4d82a8a PZ |
1999 | /* If this is the last peer to be deactivated for this |
2000 | * afi/labeled-unicast recalc bestpaths to trigger label deallocation */ | |
2001 | if (safi == SAFI_LABELED_UNICAST | |
2002 | && bgp->allocate_mpls_labels[afi][SAFI_UNICAST] | |
2003 | && !bgp_afi_safi_peer_exists(bgp, afi, safi)) { | |
318cac96 DW |
2004 | |
2005 | if (BGP_DEBUG(zebra, ZEBRA)) | |
a4d82a8a PZ |
2006 | zlog_info( |
2007 | "peer(s) are no longer active for labeled-unicast, deallocate MPLS labels"); | |
318cac96 DW |
2008 | |
2009 | bgp->allocate_mpls_labels[afi][SAFI_UNICAST] = 0; | |
2010 | bgp_recalculate_afi_safi_bestpaths(bgp, afi, SAFI_UNICAST); | |
2011 | } | |
d62a17ae | 2012 | return ret; |
2013 | } | |
718e3744 | 2014 | |
d62a17ae | 2015 | int peer_afc_set(struct peer *peer, afi_t afi, safi_t safi, int enable) |
2016 | { | |
2017 | if (enable) | |
2018 | return peer_activate(peer, afi, safi); | |
2019 | else | |
2020 | return peer_deactivate(peer, afi, safi); | |
718e3744 | 2021 | } |
2022 | ||
d62a17ae | 2023 | static void peer_nsf_stop(struct peer *peer) |
718e3744 | 2024 | { |
d62a17ae | 2025 | afi_t afi; |
2026 | safi_t safi; | |
718e3744 | 2027 | |
d62a17ae | 2028 | UNSET_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT); |
2029 | UNSET_FLAG(peer->sflags, PEER_STATUS_NSF_MODE); | |
718e3744 | 2030 | |
d62a17ae | 2031 | for (afi = AFI_IP; afi < AFI_MAX; afi++) |
a08ca0a7 | 2032 | for (safi = SAFI_UNICAST; safi <= SAFI_MPLS_VPN; safi++) |
d62a17ae | 2033 | peer->nsf[afi][safi] = 0; |
2034 | ||
2035 | if (peer->t_gr_restart) { | |
2036 | BGP_TIMER_OFF(peer->t_gr_restart); | |
2037 | if (bgp_debug_neighbor_events(peer)) | |
2038 | zlog_debug("%s graceful restart timer stopped", | |
2039 | peer->host); | |
1ff9a340 | 2040 | } |
d62a17ae | 2041 | if (peer->t_gr_stale) { |
2042 | BGP_TIMER_OFF(peer->t_gr_stale); | |
2043 | if (bgp_debug_neighbor_events(peer)) | |
2044 | zlog_debug( | |
2045 | "%s graceful restart stalepath timer stopped", | |
2046 | peer->host); | |
2047 | } | |
2048 | bgp_clear_route_all(peer); | |
2049 | } | |
718e3744 | 2050 | |
d62a17ae | 2051 | /* Delete peer from confguration. |
2052 | * | |
2053 | * The peer is moved to a dead-end "Deleted" neighbour-state, to allow | |
2054 | * it to "cool off" and refcounts to hit 0, at which state it is freed. | |
2055 | * | |
2056 | * This function /should/ take care to be idempotent, to guard against | |
2057 | * it being called multiple times through stray events that come in | |
2058 | * that happen to result in this function being called again. That | |
2059 | * said, getting here for a "Deleted" peer is a bug in the neighbour | |
2060 | * FSM. | |
2061 | */ | |
2062 | int peer_delete(struct peer *peer) | |
2063 | { | |
2064 | int i; | |
2065 | afi_t afi; | |
2066 | safi_t safi; | |
2067 | struct bgp *bgp; | |
2068 | struct bgp_filter *filter; | |
2069 | struct listnode *pn; | |
2070 | int accept_peer; | |
f14e6fdb | 2071 | |
d62a17ae | 2072 | assert(peer->status != Deleted); |
718e3744 | 2073 | |
d62a17ae | 2074 | bgp = peer->bgp; |
2075 | accept_peer = CHECK_FLAG(peer->sflags, PEER_STATUS_ACCEPT_PEER); | |
080b97f2 | 2076 | |
424ab01d QY |
2077 | bgp_reads_off(peer); |
2078 | bgp_writes_off(peer); | |
2079 | assert(!CHECK_FLAG(peer->thread_flags, PEER_THREAD_WRITES_ON)); | |
2080 | assert(!CHECK_FLAG(peer->thread_flags, PEER_THREAD_READS_ON)); | |
2081 | ||
d62a17ae | 2082 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT)) |
2083 | peer_nsf_stop(peer); | |
718e3744 | 2084 | |
d62a17ae | 2085 | SET_FLAG(peer->flags, PEER_FLAG_DELETE); |
718e3744 | 2086 | |
d62a17ae | 2087 | /* If this peer belongs to peer group, clear up the |
2088 | relationship. */ | |
2089 | if (peer->group) { | |
2090 | if (peer_dynamic_neighbor(peer)) | |
2091 | peer_drop_dynamic_neighbor(peer); | |
718e3744 | 2092 | |
d62a17ae | 2093 | if ((pn = listnode_lookup(peer->group->peer, peer))) { |
2094 | peer = peer_unlock( | |
2095 | peer); /* group->peer list reference */ | |
2096 | list_delete_node(peer->group->peer, pn); | |
2097 | } | |
2098 | peer->group = NULL; | |
2099 | } | |
718e3744 | 2100 | |
d62a17ae | 2101 | /* Withdraw all information from routing table. We can not use |
2102 | * BGP_EVENT_ADD (peer, BGP_Stop) at here. Because the event is | |
2103 | * executed after peer structure is deleted. | |
2104 | */ | |
2105 | peer->last_reset = PEER_DOWN_NEIGHBOR_DELETE; | |
2106 | bgp_stop(peer); | |
2107 | UNSET_FLAG(peer->flags, PEER_FLAG_DELETE); | |
2108 | ||
2109 | if (peer->doppelganger) { | |
2110 | peer->doppelganger->doppelganger = NULL; | |
2111 | peer->doppelganger = NULL; | |
2112 | } | |
718e3744 | 2113 | |
d62a17ae | 2114 | UNSET_FLAG(peer->sflags, PEER_STATUS_ACCEPT_PEER); |
2115 | bgp_fsm_change_status(peer, Deleted); | |
718e3744 | 2116 | |
d62a17ae | 2117 | /* Remove from NHT */ |
2118 | if (CHECK_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE)) | |
2119 | bgp_unlink_nexthop_by_peer(peer); | |
1ff9a340 | 2120 | |
d62a17ae | 2121 | /* Password configuration */ |
a14810f4 | 2122 | if (CHECK_FLAG(peer->flags, PEER_FLAG_PASSWORD)) { |
d62a17ae | 2123 | XFREE(MTYPE_PEER_PASSWORD, peer->password); |
1ff9a340 | 2124 | |
d62a17ae | 2125 | if (!accept_peer && !BGP_PEER_SU_UNSPEC(peer) |
2126 | && !CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
2127 | bgp_md5_unset(peer); | |
1ff9a340 | 2128 | } |
718e3744 | 2129 | |
d62a17ae | 2130 | bgp_timer_set(peer); /* stops all timers for Deleted */ |
718e3744 | 2131 | |
d62a17ae | 2132 | /* Delete from all peer list. */ |
2133 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP) | |
2134 | && (pn = listnode_lookup(bgp->peer, peer))) { | |
2135 | peer_unlock(peer); /* bgp peer list reference */ | |
2136 | list_delete_node(bgp->peer, pn); | |
2137 | hash_release(bgp->peerhash, peer); | |
2138 | } | |
718e3744 | 2139 | |
d62a17ae | 2140 | /* Buffers. */ |
2141 | if (peer->ibuf) { | |
424ab01d | 2142 | stream_fifo_free(peer->ibuf); |
d62a17ae | 2143 | peer->ibuf = NULL; |
2144 | } | |
f14e6fdb | 2145 | |
d62a17ae | 2146 | if (peer->obuf) { |
2147 | stream_fifo_free(peer->obuf); | |
2148 | peer->obuf = NULL; | |
2149 | } | |
f14e6fdb | 2150 | |
424ab01d | 2151 | if (peer->ibuf_work) { |
74ffbfe6 | 2152 | ringbuf_del(peer->ibuf_work); |
424ab01d QY |
2153 | peer->ibuf_work = NULL; |
2154 | } | |
2155 | ||
2156 | if (peer->obuf_work) { | |
2157 | stream_free(peer->obuf_work); | |
2158 | peer->obuf_work = NULL; | |
d62a17ae | 2159 | } |
f14e6fdb | 2160 | |
d62a17ae | 2161 | if (peer->scratch) { |
2162 | stream_free(peer->scratch); | |
2163 | peer->scratch = NULL; | |
2164 | } | |
f14e6fdb | 2165 | |
d62a17ae | 2166 | /* Local and remote addresses. */ |
2167 | if (peer->su_local) { | |
2168 | sockunion_free(peer->su_local); | |
2169 | peer->su_local = NULL; | |
2170 | } | |
f14e6fdb | 2171 | |
d62a17ae | 2172 | if (peer->su_remote) { |
2173 | sockunion_free(peer->su_remote); | |
2174 | peer->su_remote = NULL; | |
2175 | } | |
f14e6fdb | 2176 | |
d62a17ae | 2177 | /* Free filter related memory. */ |
05c7a1cc QY |
2178 | FOREACH_AFI_SAFI (afi, safi) { |
2179 | filter = &peer->filter[afi][safi]; | |
d62a17ae | 2180 | |
05c7a1cc QY |
2181 | for (i = FILTER_IN; i < FILTER_MAX; i++) { |
2182 | if (filter->dlist[i].name) { | |
2183 | XFREE(MTYPE_BGP_FILTER_NAME, | |
2184 | filter->dlist[i].name); | |
2185 | filter->dlist[i].name = NULL; | |
d62a17ae | 2186 | } |
2187 | ||
05c7a1cc QY |
2188 | if (filter->plist[i].name) { |
2189 | XFREE(MTYPE_BGP_FILTER_NAME, | |
2190 | filter->plist[i].name); | |
2191 | filter->plist[i].name = NULL; | |
d62a17ae | 2192 | } |
2193 | ||
05c7a1cc | 2194 | if (filter->aslist[i].name) { |
d62a17ae | 2195 | XFREE(MTYPE_BGP_FILTER_NAME, |
05c7a1cc QY |
2196 | filter->aslist[i].name); |
2197 | filter->aslist[i].name = NULL; | |
d62a17ae | 2198 | } |
05c7a1cc | 2199 | } |
d62a17ae | 2200 | |
05c7a1cc QY |
2201 | for (i = RMAP_IN; i < RMAP_MAX; i++) { |
2202 | if (filter->map[i].name) { | |
2203 | XFREE(MTYPE_BGP_FILTER_NAME, | |
2204 | filter->map[i].name); | |
2205 | filter->map[i].name = NULL; | |
d62a17ae | 2206 | } |
2207 | } | |
f14e6fdb | 2208 | |
05c7a1cc QY |
2209 | if (filter->usmap.name) { |
2210 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
2211 | filter->usmap.name = NULL; | |
2212 | } | |
2213 | ||
2214 | if (peer->default_rmap[afi][safi].name) { | |
2215 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
2216 | peer->default_rmap[afi][safi].name); | |
2217 | peer->default_rmap[afi][safi].name = NULL; | |
2218 | } | |
2219 | } | |
2220 | ||
a2addae8 RW |
2221 | FOREACH_AFI_SAFI (afi, safi) |
2222 | peer_af_delete(peer, afi, safi); | |
f14e6fdb | 2223 | |
d62a17ae | 2224 | if (peer->hostname) { |
2225 | XFREE(MTYPE_BGP_PEER_HOST, peer->hostname); | |
2226 | peer->hostname = NULL; | |
2227 | } | |
f14e6fdb | 2228 | |
d62a17ae | 2229 | if (peer->domainname) { |
2230 | XFREE(MTYPE_BGP_PEER_HOST, peer->domainname); | |
2231 | peer->domainname = NULL; | |
2232 | } | |
f14e6fdb | 2233 | |
d62a17ae | 2234 | peer_unlock(peer); /* initial reference */ |
f14e6fdb | 2235 | |
d62a17ae | 2236 | return 0; |
fe7d2a48 DS |
2237 | } |
2238 | ||
d62a17ae | 2239 | static int peer_group_cmp(struct peer_group *g1, struct peer_group *g2) |
2240 | { | |
2241 | return strcmp(g1->name, g2->name); | |
6aeb9e78 DS |
2242 | } |
2243 | ||
d62a17ae | 2244 | /* Peer group cofiguration. */ |
2245 | static struct peer_group *peer_group_new(void) | |
718e3744 | 2246 | { |
d62a17ae | 2247 | return (struct peer_group *)XCALLOC(MTYPE_PEER_GROUP, |
2248 | sizeof(struct peer_group)); | |
718e3744 | 2249 | } |
2250 | ||
d62a17ae | 2251 | static void peer_group_free(struct peer_group *group) |
718e3744 | 2252 | { |
d62a17ae | 2253 | XFREE(MTYPE_PEER_GROUP, group); |
718e3744 | 2254 | } |
2255 | ||
d62a17ae | 2256 | struct peer_group *peer_group_lookup(struct bgp *bgp, const char *name) |
718e3744 | 2257 | { |
d62a17ae | 2258 | struct peer_group *group; |
2259 | struct listnode *node, *nnode; | |
2260 | ||
2261 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
2262 | if (strcmp(group->name, name) == 0) | |
2263 | return group; | |
2264 | } | |
2265 | return NULL; | |
2266 | } | |
2267 | ||
2268 | struct peer_group *peer_group_get(struct bgp *bgp, const char *name) | |
2269 | { | |
2270 | struct peer_group *group; | |
2271 | afi_t afi; | |
2272 | ||
2273 | group = peer_group_lookup(bgp, name); | |
2274 | if (group) | |
2275 | return group; | |
2276 | ||
2277 | group = peer_group_new(); | |
2278 | group->bgp = bgp; | |
2279 | if (group->name) | |
2280 | XFREE(MTYPE_PEER_GROUP_HOST, group->name); | |
2281 | group->name = XSTRDUP(MTYPE_PEER_GROUP_HOST, name); | |
2282 | group->peer = list_new(); | |
2283 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
2284 | group->listen_range[afi] = list_new(); | |
2285 | group->conf = peer_new(bgp); | |
2286 | if (!bgp_flag_check(bgp, BGP_FLAG_NO_DEFAULT_IPV4)) | |
2287 | group->conf->afc[AFI_IP][SAFI_UNICAST] = 1; | |
2288 | if (group->conf->host) | |
2289 | XFREE(MTYPE_BGP_PEER_HOST, group->conf->host); | |
2290 | group->conf->host = XSTRDUP(MTYPE_BGP_PEER_HOST, name); | |
2291 | group->conf->group = group; | |
2292 | group->conf->as = 0; | |
2293 | group->conf->ttl = 1; | |
2294 | group->conf->gtsm_hops = 0; | |
2295 | group->conf->v_routeadv = BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 2296 | SET_FLAG(group->conf->sflags, PEER_STATUS_GROUP); |
2297 | listnode_add_sort(bgp->group, group); | |
718e3744 | 2298 | |
d62a17ae | 2299 | return group; |
718e3744 | 2300 | } |
2301 | ||
d62a17ae | 2302 | static void peer_group2peer_config_copy(struct peer_group *group, |
2303 | struct peer *peer) | |
ad4cbda1 | 2304 | { |
4c391142 | 2305 | uint32_t flags_tmp; |
d62a17ae | 2306 | struct peer *conf; |
ad4cbda1 | 2307 | |
d62a17ae | 2308 | conf = group->conf; |
ad4cbda1 | 2309 | |
d62a17ae | 2310 | /* remote-as */ |
2311 | if (conf->as) | |
2312 | peer->as = conf->as; | |
718e3744 | 2313 | |
a14810f4 PM |
2314 | /* local-as */ |
2315 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_LOCAL_AS)) | |
d62a17ae | 2316 | peer->change_local_as = conf->change_local_as; |
1758dbaa | 2317 | |
d62a17ae | 2318 | /* TTL */ |
2319 | peer->ttl = conf->ttl; | |
518f0eb1 | 2320 | |
d62a17ae | 2321 | /* GTSM hops */ |
2322 | peer->gtsm_hops = conf->gtsm_hops; | |
ad12dde6 | 2323 | |
4c391142 PM |
2324 | /* peer flags apply */ |
2325 | flags_tmp = conf->flags & ~peer->flags_override; | |
2326 | flags_tmp ^= conf->flags_invert ^ peer->flags_invert; | |
2327 | flags_tmp &= ~peer->flags_override; | |
2328 | ||
2329 | UNSET_FLAG(peer->flags, ~peer->flags_override); | |
2330 | SET_FLAG(peer->flags, flags_tmp); | |
2331 | SET_FLAG(peer->flags_invert, conf->flags_invert); | |
ad4cbda1 | 2332 | |
d62a17ae | 2333 | /* peer timers apply */ |
b90a8e13 PM |
2334 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_TIMER)) { |
2335 | PEER_ATTR_INHERIT(peer, group, holdtime); | |
2336 | PEER_ATTR_INHERIT(peer, group, keepalive); | |
2337 | } | |
6aeb9e78 | 2338 | |
b90a8e13 PM |
2339 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_TIMER_CONNECT)) { |
2340 | PEER_ATTR_INHERIT(peer, group, connect); | |
2341 | if (CHECK_FLAG(conf->flags, PEER_FLAG_TIMER_CONNECT)) | |
2342 | peer->v_connect = conf->connect; | |
2343 | else | |
2344 | peer->v_connect = BGP_DEFAULT_CONNECT_RETRY; | |
2345 | } | |
2346 | ||
2347 | /* advertisement-interval apply */ | |
2348 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_ROUTEADV)) { | |
2349 | PEER_ATTR_INHERIT(peer, group, routeadv); | |
2350 | if (CHECK_FLAG(conf->flags, PEER_FLAG_ROUTEADV)) | |
2351 | peer->v_routeadv = conf->routeadv; | |
2352 | else | |
2353 | peer->v_routeadv = (peer_sort(peer) == BGP_PEER_IBGP) | |
2354 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
2355 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
2356 | } | |
718e3744 | 2357 | |
d62a17ae | 2358 | /* password apply */ |
a14810f4 PM |
2359 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_PASSWORD)) |
2360 | PEER_STR_ATTR_INHERIT(peer, group, password, | |
2361 | MTYPE_PEER_PASSWORD); | |
718e3744 | 2362 | |
d62a17ae | 2363 | if (!BGP_PEER_SU_UNSPEC(peer)) |
2364 | bgp_md5_set(peer); | |
d4a7a753 | 2365 | |
d62a17ae | 2366 | /* update-source apply */ |
a14810f4 PM |
2367 | if (!CHECK_FLAG(peer->flags_override, PEER_FLAG_UPDATE_SOURCE)) { |
2368 | if (conf->update_source) { | |
d62a17ae | 2369 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); |
a14810f4 PM |
2370 | PEER_SU_ATTR_INHERIT(peer, group, update_source); |
2371 | } else if (conf->update_if) { | |
d62a17ae | 2372 | sockunion_free(peer->update_source); |
a14810f4 PM |
2373 | PEER_STR_ATTR_INHERIT(peer, group, update_if, |
2374 | MTYPE_PEER_UPDATE_SOURCE); | |
d62a17ae | 2375 | } |
d62a17ae | 2376 | } |
cd92e548 | 2377 | |
d62a17ae | 2378 | bgp_bfd_peer_group2peer_copy(conf, peer); |
ad4cbda1 | 2379 | } |
718e3744 | 2380 | |
d62a17ae | 2381 | /* Peer group's remote AS configuration. */ |
2382 | int peer_group_remote_as(struct bgp *bgp, const char *group_name, as_t *as, | |
2383 | int as_type) | |
f14e6fdb | 2384 | { |
d62a17ae | 2385 | struct peer_group *group; |
2386 | struct peer *peer; | |
2387 | struct listnode *node, *nnode; | |
f14e6fdb | 2388 | |
d62a17ae | 2389 | group = peer_group_lookup(bgp, group_name); |
2390 | if (!group) | |
2391 | return -1; | |
f14e6fdb | 2392 | |
d62a17ae | 2393 | if ((as_type == group->conf->as_type) && (group->conf->as == *as)) |
2394 | return 0; | |
f14e6fdb | 2395 | |
f14e6fdb | 2396 | |
d62a17ae | 2397 | /* When we setup peer-group AS number all peer group member's AS |
2398 | number must be updated to same number. */ | |
2399 | peer_as_change(group->conf, *as, as_type); | |
f14e6fdb | 2400 | |
d62a17ae | 2401 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { |
2402 | if (((peer->as_type == AS_SPECIFIED) && peer->as != *as) | |
2403 | || (peer->as_type != as_type)) | |
2404 | peer_as_change(peer, *as, as_type); | |
2405 | } | |
f14e6fdb | 2406 | |
d62a17ae | 2407 | return 0; |
f14e6fdb DS |
2408 | } |
2409 | ||
d62a17ae | 2410 | int peer_group_delete(struct peer_group *group) |
f14e6fdb | 2411 | { |
d62a17ae | 2412 | struct bgp *bgp; |
2413 | struct peer *peer; | |
2414 | struct prefix *prefix; | |
2415 | struct peer *other; | |
2416 | struct listnode *node, *nnode; | |
2417 | afi_t afi; | |
f14e6fdb | 2418 | |
d62a17ae | 2419 | bgp = group->bgp; |
f14e6fdb | 2420 | |
d62a17ae | 2421 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { |
2422 | other = peer->doppelganger; | |
2423 | peer_delete(peer); | |
2424 | if (other && other->status != Deleted) { | |
2425 | other->group = NULL; | |
2426 | peer_delete(other); | |
2427 | } | |
2428 | } | |
affe9e99 | 2429 | list_delete_and_null(&group->peer); |
f14e6fdb | 2430 | |
d62a17ae | 2431 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
2432 | for (ALL_LIST_ELEMENTS(group->listen_range[afi], node, nnode, | |
2433 | prefix)) { | |
2434 | prefix_free(prefix); | |
2435 | } | |
affe9e99 | 2436 | list_delete_and_null(&group->listen_range[afi]); |
d62a17ae | 2437 | } |
f14e6fdb | 2438 | |
d62a17ae | 2439 | XFREE(MTYPE_PEER_GROUP_HOST, group->name); |
2440 | group->name = NULL; | |
0299c004 | 2441 | |
d62a17ae | 2442 | bfd_info_free(&(group->conf->bfd_info)); |
f14e6fdb | 2443 | |
d62a17ae | 2444 | group->conf->group = NULL; |
2445 | peer_delete(group->conf); | |
f14e6fdb | 2446 | |
d62a17ae | 2447 | /* Delete from all peer_group list. */ |
2448 | listnode_delete(bgp->group, group); | |
f14e6fdb | 2449 | |
d62a17ae | 2450 | peer_group_free(group); |
f14e6fdb | 2451 | |
d62a17ae | 2452 | return 0; |
2453 | } | |
f14e6fdb | 2454 | |
d62a17ae | 2455 | int peer_group_remote_as_delete(struct peer_group *group) |
2456 | { | |
2457 | struct peer *peer, *other; | |
2458 | struct listnode *node, *nnode; | |
f14e6fdb | 2459 | |
d62a17ae | 2460 | if ((group->conf->as_type == AS_UNSPECIFIED) |
2461 | || ((!group->conf->as) && (group->conf->as_type == AS_SPECIFIED))) | |
2462 | return 0; | |
f14e6fdb | 2463 | |
d62a17ae | 2464 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { |
2465 | other = peer->doppelganger; | |
f14e6fdb | 2466 | |
d62a17ae | 2467 | peer_delete(peer); |
f14e6fdb | 2468 | |
d62a17ae | 2469 | if (other && other->status != Deleted) { |
2470 | other->group = NULL; | |
2471 | peer_delete(other); | |
2472 | } | |
2473 | } | |
2474 | list_delete_all_node(group->peer); | |
f14e6fdb | 2475 | |
d62a17ae | 2476 | group->conf->as = 0; |
2477 | group->conf->as_type = AS_UNSPECIFIED; | |
f14e6fdb | 2478 | |
d62a17ae | 2479 | return 0; |
f14e6fdb | 2480 | } |
d62a17ae | 2481 | |
2482 | int peer_group_listen_range_add(struct peer_group *group, struct prefix *range) | |
f14e6fdb | 2483 | { |
d62a17ae | 2484 | struct prefix *prefix; |
2485 | struct listnode *node, *nnode; | |
2486 | afi_t afi; | |
f14e6fdb | 2487 | |
d62a17ae | 2488 | afi = family2afi(range->family); |
f14e6fdb | 2489 | |
d62a17ae | 2490 | /* Group needs remote AS configured. */ |
2491 | if (group->conf->as_type == AS_UNSPECIFIED) | |
2492 | return BGP_ERR_PEER_GROUP_NO_REMOTE_AS; | |
718e3744 | 2493 | |
d62a17ae | 2494 | /* Ensure no duplicates. Currently we don't care about overlaps. */ |
2495 | for (ALL_LIST_ELEMENTS(group->listen_range[afi], node, nnode, prefix)) { | |
2496 | if (prefix_same(range, prefix)) | |
2497 | return 0; | |
2498 | } | |
2499 | ||
2500 | prefix = prefix_new(); | |
2501 | prefix_copy(prefix, range); | |
2502 | listnode_add(group->listen_range[afi], prefix); | |
2503 | return 0; | |
718e3744 | 2504 | } |
6b0655a2 | 2505 | |
d62a17ae | 2506 | int peer_group_listen_range_del(struct peer_group *group, struct prefix *range) |
718e3744 | 2507 | { |
d62a17ae | 2508 | struct prefix *prefix, prefix2; |
2509 | struct listnode *node, *nnode; | |
2510 | struct peer *peer; | |
2511 | afi_t afi; | |
2512 | char buf[PREFIX2STR_BUFFER]; | |
718e3744 | 2513 | |
d62a17ae | 2514 | afi = family2afi(range->family); |
1ff9a340 | 2515 | |
d62a17ae | 2516 | /* Identify the listen range. */ |
2517 | for (ALL_LIST_ELEMENTS(group->listen_range[afi], node, nnode, prefix)) { | |
2518 | if (prefix_same(range, prefix)) | |
2519 | break; | |
1ff9a340 | 2520 | } |
718e3744 | 2521 | |
d62a17ae | 2522 | if (!prefix) |
2523 | return BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_NOT_FOUND; | |
2524 | ||
2525 | prefix2str(prefix, buf, sizeof(buf)); | |
2526 | ||
2527 | /* Dispose off any dynamic neighbors that exist due to this listen range | |
2528 | */ | |
2529 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
2530 | if (!peer_dynamic_neighbor(peer)) | |
2531 | continue; | |
2532 | ||
2533 | sockunion2hostprefix(&peer->su, &prefix2); | |
2534 | if (prefix_match(prefix, &prefix2)) { | |
2535 | if (bgp_debug_neighbor_events(peer)) | |
2536 | zlog_debug( | |
2537 | "Deleting dynamic neighbor %s group %s upon " | |
2538 | "delete of listen range %s", | |
2539 | peer->host, group->name, buf); | |
2540 | peer_delete(peer); | |
2541 | } | |
2542 | } | |
718e3744 | 2543 | |
d62a17ae | 2544 | /* Get rid of the listen range */ |
2545 | listnode_delete(group->listen_range[afi], prefix); | |
718e3744 | 2546 | |
d62a17ae | 2547 | return 0; |
2548 | } | |
e0701b79 | 2549 | |
d62a17ae | 2550 | /* Bind specified peer to peer group. */ |
2551 | int peer_group_bind(struct bgp *bgp, union sockunion *su, struct peer *peer, | |
2552 | struct peer_group *group, as_t *as) | |
2553 | { | |
2554 | int first_member = 0; | |
2555 | afi_t afi; | |
2556 | safi_t safi; | |
d62a17ae | 2557 | |
2558 | /* Lookup the peer. */ | |
2559 | if (!peer) | |
2560 | peer = peer_lookup(bgp, su); | |
2561 | ||
2562 | /* The peer exist, bind it to the peer-group */ | |
2563 | if (peer) { | |
ed9fb826 | 2564 | /* When the peer already belongs to a peer-group, check the |
d62a17ae | 2565 | * consistency. */ |
ed9fb826 DW |
2566 | if (peer_group_active(peer)) { |
2567 | ||
2568 | /* The peer is already bound to the peer-group, | |
d8a079e8 DW |
2569 | * nothing to do |
2570 | */ | |
ed9fb826 DW |
2571 | if (strcmp(peer->group->name, group->name) == 0) |
2572 | return 0; | |
2573 | else | |
2574 | return BGP_ERR_PEER_GROUP_CANT_CHANGE; | |
2575 | } | |
d62a17ae | 2576 | |
2577 | /* The peer has not specified a remote-as, inherit it from the | |
2578 | * peer-group */ | |
2579 | if (peer->as_type == AS_UNSPECIFIED) { | |
2580 | peer->as_type = group->conf->as_type; | |
2581 | peer->as = group->conf->as; | |
2582 | } | |
718e3744 | 2583 | |
d62a17ae | 2584 | if (!group->conf->as) { |
2585 | if (peer_sort(group->conf) != BGP_PEER_INTERNAL | |
2586 | && peer_sort(group->conf) != peer_sort(peer)) { | |
2587 | if (as) | |
2588 | *as = peer->as; | |
2589 | return BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT; | |
2590 | } | |
718e3744 | 2591 | |
d62a17ae | 2592 | if (peer_sort(group->conf) == BGP_PEER_INTERNAL) |
2593 | first_member = 1; | |
2594 | } | |
718e3744 | 2595 | |
d62a17ae | 2596 | peer_group2peer_config_copy(group, peer); |
2597 | ||
05c7a1cc QY |
2598 | FOREACH_AFI_SAFI (afi, safi) { |
2599 | if (group->conf->afc[afi][safi]) { | |
2600 | peer->afc[afi][safi] = 1; | |
2601 | ||
2602 | if (peer_af_find(peer, afi, safi) | |
2603 | || peer_af_create(peer, afi, safi)) { | |
2604 | peer_group2peer_config_copy_af( | |
2605 | group, peer, afi, safi); | |
2606 | } | |
2607 | } else if (peer->afc[afi][safi]) | |
2608 | peer_deactivate(peer, afi, safi); | |
a4d82a8a | 2609 | } |
d62a17ae | 2610 | |
2611 | if (peer->group) { | |
2612 | assert(group && peer->group == group); | |
2613 | } else { | |
0866cdaf A |
2614 | listnode_delete(bgp->peer, peer); |
2615 | ||
d62a17ae | 2616 | peer->group = group; |
2617 | listnode_add_sort(bgp->peer, peer); | |
2618 | ||
2619 | peer = peer_lock(peer); /* group->peer list reference */ | |
2620 | listnode_add(group->peer, peer); | |
2621 | } | |
718e3744 | 2622 | |
d62a17ae | 2623 | if (first_member) { |
2624 | /* Advertisement-interval reset */ | |
b90a8e13 PM |
2625 | if (!CHECK_FLAG(group->conf->flags, |
2626 | PEER_FLAG_ROUTEADV)) { | |
2627 | group->conf->v_routeadv = | |
2628 | (peer_sort(group->conf) | |
2629 | == BGP_PEER_IBGP) | |
2630 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
2631 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 2632 | } |
2633 | ||
2634 | /* ebgp-multihop reset */ | |
2635 | if (peer_sort(group->conf) == BGP_PEER_IBGP) | |
2636 | group->conf->ttl = MAXTTL; | |
2637 | ||
2638 | /* local-as reset */ | |
2639 | if (peer_sort(group->conf) != BGP_PEER_EBGP) { | |
2640 | group->conf->change_local_as = 0; | |
a14810f4 PM |
2641 | peer_flag_unset(group->conf, |
2642 | PEER_FLAG_LOCAL_AS); | |
2643 | peer_flag_unset(group->conf, | |
2644 | PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
2645 | peer_flag_unset(group->conf, | |
2646 | PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
d62a17ae | 2647 | } |
2648 | } | |
718e3744 | 2649 | |
d62a17ae | 2650 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); |
718e3744 | 2651 | |
d62a17ae | 2652 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
2653 | peer->last_reset = PEER_DOWN_RMAP_BIND; | |
2654 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
2655 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
2656 | } else { | |
2657 | bgp_session_reset(peer); | |
2658 | } | |
2659 | } | |
718e3744 | 2660 | |
d62a17ae | 2661 | /* Create a new peer. */ |
2662 | else { | |
2663 | if ((group->conf->as_type == AS_SPECIFIED) | |
2664 | && (!group->conf->as)) { | |
2665 | return BGP_ERR_PEER_GROUP_NO_REMOTE_AS; | |
2666 | } | |
718e3744 | 2667 | |
d62a17ae | 2668 | peer = peer_create(su, NULL, bgp, bgp->as, group->conf->as, |
2669 | group->conf->as_type, 0, 0, group); | |
718e3744 | 2670 | |
d62a17ae | 2671 | peer = peer_lock(peer); /* group->peer list reference */ |
2672 | listnode_add(group->peer, peer); | |
718e3744 | 2673 | |
d62a17ae | 2674 | peer_group2peer_config_copy(group, peer); |
a4ed4829 | 2675 | |
d62a17ae | 2676 | /* If the peer-group is active for this afi/safi then activate |
2677 | * for this peer */ | |
05c7a1cc QY |
2678 | FOREACH_AFI_SAFI (afi, safi) { |
2679 | if (group->conf->afc[afi][safi]) { | |
2680 | peer->afc[afi][safi] = 1; | |
2681 | peer_af_create(peer, afi, safi); | |
2682 | peer_group2peer_config_copy_af(group, peer, afi, | |
2683 | safi); | |
2684 | } else if (peer->afc[afi][safi]) | |
2685 | peer_deactivate(peer, afi, safi); | |
2686 | } | |
718e3744 | 2687 | |
d62a17ae | 2688 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); |
718e3744 | 2689 | |
d62a17ae | 2690 | /* Set up peer's events and timers. */ |
2691 | if (peer_active(peer)) | |
2692 | bgp_timer_set(peer); | |
2693 | } | |
718e3744 | 2694 | |
d62a17ae | 2695 | return 0; |
718e3744 | 2696 | } |
2697 | ||
d62a17ae | 2698 | static int bgp_startup_timer_expire(struct thread *thread) |
2699 | { | |
2700 | struct bgp *bgp; | |
718e3744 | 2701 | |
d62a17ae | 2702 | bgp = THREAD_ARG(thread); |
2703 | bgp->t_startup = NULL; | |
718e3744 | 2704 | |
d62a17ae | 2705 | return 0; |
2706 | } | |
e0701b79 | 2707 | |
829e590b DS |
2708 | /* |
2709 | * On shutdown we call the cleanup function which | |
2710 | * does a free of the link list nodes, free up | |
2711 | * the data we are pointing at too. | |
2712 | */ | |
2713 | static void bgp_vrf_string_name_delete(void *data) | |
2714 | { | |
2715 | char *vname = data; | |
2716 | ||
2717 | XFREE(MTYPE_TMP, vname); | |
2718 | } | |
2719 | ||
d62a17ae | 2720 | /* BGP instance creation by `router bgp' commands. */ |
2721 | static struct bgp *bgp_create(as_t *as, const char *name, | |
2722 | enum bgp_instance_type inst_type) | |
2723 | { | |
0291c246 MK |
2724 | struct bgp *bgp; |
2725 | afi_t afi; | |
2726 | safi_t safi; | |
d62a17ae | 2727 | |
2728 | if ((bgp = XCALLOC(MTYPE_BGP, sizeof(struct bgp))) == NULL) | |
2729 | return NULL; | |
2730 | ||
2731 | if (BGP_DEBUG(zebra, ZEBRA)) { | |
2732 | if (inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
2733 | zlog_debug("Creating Default VRF, AS %u", *as); | |
2734 | else | |
2735 | zlog_debug("Creating %s %s, AS %u", | |
2736 | (inst_type == BGP_INSTANCE_TYPE_VRF) | |
2737 | ? "VRF" | |
2738 | : "VIEW", | |
2739 | name, *as); | |
718e3744 | 2740 | } |
adbac85e | 2741 | |
d62a17ae | 2742 | bgp_lock(bgp); |
9df5ac49 | 2743 | bgp->heuristic_coalesce = true; |
d62a17ae | 2744 | bgp->inst_type = inst_type; |
2745 | bgp->vrf_id = (inst_type == BGP_INSTANCE_TYPE_DEFAULT) ? VRF_DEFAULT | |
2746 | : VRF_UNKNOWN; | |
2747 | bgp->peer_self = peer_new(bgp); | |
2748 | if (bgp->peer_self->host) | |
2749 | XFREE(MTYPE_BGP_PEER_HOST, bgp->peer_self->host); | |
2750 | bgp->peer_self->host = | |
2751 | XSTRDUP(MTYPE_BGP_PEER_HOST, "Static announcement"); | |
d77114b7 MK |
2752 | if (bgp->peer_self->hostname != NULL) { |
2753 | XFREE(MTYPE_BGP_PEER_HOST, bgp->peer_self->hostname); | |
2754 | bgp->peer_self->hostname = NULL; | |
2755 | } | |
6b3ee3a0 | 2756 | if (cmd_hostname_get()) |
60466a63 QY |
2757 | bgp->peer_self->hostname = |
2758 | XSTRDUP(MTYPE_BGP_PEER_HOST, cmd_hostname_get()); | |
d77114b7 MK |
2759 | |
2760 | if (bgp->peer_self->domainname != NULL) { | |
2761 | XFREE(MTYPE_BGP_PEER_HOST, bgp->peer_self->domainname); | |
2762 | bgp->peer_self->domainname = NULL; | |
2763 | } | |
6b3ee3a0 | 2764 | if (cmd_domainname_get()) |
60466a63 QY |
2765 | bgp->peer_self->domainname = |
2766 | XSTRDUP(MTYPE_BGP_PEER_HOST, cmd_domainname_get()); | |
d62a17ae | 2767 | bgp->peer = list_new(); |
2768 | bgp->peer->cmp = (int (*)(void *, void *))peer_cmp; | |
a4d82a8a | 2769 | bgp->peerhash = hash_create(peer_hash_key_make, peer_hash_same, |
3f65c5b1 | 2770 | "BGP Peer Hash"); |
40520c36 | 2771 | bgp->peerhash->max_size = BGP_PEER_MAX_HASH_SIZE; |
d62a17ae | 2772 | |
2773 | bgp->group = list_new(); | |
2774 | bgp->group->cmp = (int (*)(void *, void *))peer_group_cmp; | |
2775 | ||
05c7a1cc | 2776 | FOREACH_AFI_SAFI (afi, safi) { |
960035b2 PZ |
2777 | bgp->route[afi][safi] = bgp_table_init(bgp, afi, safi); |
2778 | bgp->aggregate[afi][safi] = bgp_table_init(bgp, afi, safi); | |
2779 | bgp->rib[afi][safi] = bgp_table_init(bgp, afi, safi); | |
05c7a1cc QY |
2780 | |
2781 | /* Enable maximum-paths */ | |
2782 | bgp_maximum_paths_set(bgp, afi, safi, BGP_PEER_EBGP, | |
2783 | multipath_num, 0); | |
2784 | bgp_maximum_paths_set(bgp, afi, safi, BGP_PEER_IBGP, | |
2785 | multipath_num, 0); | |
2786 | } | |
d62a17ae | 2787 | |
2788 | bgp->v_update_delay = BGP_UPDATE_DELAY_DEF; | |
2789 | bgp->default_local_pref = BGP_DEFAULT_LOCAL_PREF; | |
2790 | bgp->default_subgroup_pkt_queue_max = | |
2791 | BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX; | |
2792 | bgp->default_holdtime = BGP_DEFAULT_HOLDTIME; | |
2793 | bgp->default_keepalive = BGP_DEFAULT_KEEPALIVE; | |
2794 | bgp->restart_time = BGP_DEFAULT_RESTART_TIME; | |
2795 | bgp->stalepath_time = BGP_DEFAULT_STALEPATH_TIME; | |
2796 | bgp->dynamic_neighbors_limit = BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT; | |
2797 | bgp->dynamic_neighbors_count = 0; | |
2798 | #if DFLT_BGP_IMPORT_CHECK | |
2799 | bgp_flag_set(bgp, BGP_FLAG_IMPORT_CHECK); | |
2800 | #endif | |
2801 | #if DFLT_BGP_SHOW_HOSTNAME | |
2802 | bgp_flag_set(bgp, BGP_FLAG_SHOW_HOSTNAME); | |
2803 | #endif | |
2804 | #if DFLT_BGP_LOG_NEIGHBOR_CHANGES | |
2805 | bgp_flag_set(bgp, BGP_FLAG_LOG_NEIGHBOR_CHANGES); | |
2806 | #endif | |
2807 | #if DFLT_BGP_DETERMINISTIC_MED | |
2808 | bgp_flag_set(bgp, BGP_FLAG_DETERMINISTIC_MED); | |
2809 | #endif | |
2810 | bgp->addpath_tx_id = BGP_ADDPATH_TX_ID_FOR_DEFAULT_ORIGINATE; | |
2811 | ||
2812 | bgp->as = *as; | |
2813 | ||
2814 | #if ENABLE_BGP_VNC | |
2815 | if (inst_type != BGP_INSTANCE_TYPE_VRF) { | |
2816 | bgp->rfapi = bgp_rfapi_new(bgp); | |
2817 | assert(bgp->rfapi); | |
2818 | assert(bgp->rfapi_cfg); | |
2819 | } | |
2820 | #endif /* ENABLE_BGP_VNC */ | |
adbac85e | 2821 | |
ddb5b488 | 2822 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { |
e70e9f8e PZ |
2823 | bgp->vpn_policy[afi].bgp = bgp; |
2824 | bgp->vpn_policy[afi].afi = afi; | |
ddb5b488 PZ |
2825 | bgp->vpn_policy[afi].tovpn_label = MPLS_LABEL_NONE; |
2826 | bgp->vpn_policy[afi].tovpn_zebra_vrf_label_last_sent = | |
2827 | MPLS_LABEL_NONE; | |
12a844a5 DS |
2828 | |
2829 | bgp->vpn_policy[afi].import_vrf = list_new(); | |
829e590b DS |
2830 | bgp->vpn_policy[afi].import_vrf->del = |
2831 | bgp_vrf_string_name_delete; | |
12a844a5 | 2832 | bgp->vpn_policy[afi].export_vrf = list_new(); |
829e590b DS |
2833 | bgp->vpn_policy[afi].export_vrf->del = |
2834 | bgp_vrf_string_name_delete; | |
ddb5b488 | 2835 | } |
d62a17ae | 2836 | if (name) { |
2837 | bgp->name = XSTRDUP(MTYPE_BGP, name); | |
2838 | } else { | |
2839 | /* TODO - The startup timer needs to be run for the whole of BGP | |
2840 | */ | |
2841 | thread_add_timer(bm->master, bgp_startup_timer_expire, bgp, | |
2842 | bgp->restart_time, &bgp->t_startup); | |
2843 | } | |
06370dac | 2844 | |
3572fb26 PZ |
2845 | /* printable name we can use in debug messages */ |
2846 | if (inst_type == BGP_INSTANCE_TYPE_DEFAULT) { | |
2847 | bgp->name_pretty = XSTRDUP(MTYPE_BGP, "VRF default"); | |
2848 | } else { | |
2849 | const char *n; | |
2850 | int len; | |
2851 | ||
2852 | if (bgp->name) | |
2853 | n = bgp->name; | |
2854 | else | |
2855 | n = "?"; | |
2856 | ||
2857 | len = 4 + 1 + strlen(n) + 1; /* "view foo\0" */ | |
2858 | ||
2859 | bgp->name_pretty = XCALLOC(MTYPE_BGP, len); | |
2860 | snprintf(bgp->name_pretty, len, "%s %s", | |
2861 | (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) | |
2862 | ? "VRF" | |
2863 | : "VIEW", | |
2864 | n); | |
2865 | } | |
2866 | ||
555e09d4 QY |
2867 | atomic_store_explicit(&bgp->wpkt_quanta, BGP_WRITE_PACKET_MAX, |
2868 | memory_order_relaxed); | |
2869 | atomic_store_explicit(&bgp->rpkt_quanta, BGP_READ_PACKET_MAX, | |
2870 | memory_order_relaxed); | |
d62a17ae | 2871 | bgp->coalesce_time = BGP_DEFAULT_SUBGROUP_COALESCE_TIME; |
adbac85e | 2872 | |
d62a17ae | 2873 | QOBJ_REG(bgp, bgp); |
adbac85e | 2874 | |
d62a17ae | 2875 | update_bgp_group_init(bgp); |
92708db6 | 2876 | |
2877 | /* assign a unique rd id for auto derivation of vrf's RD */ | |
2878 | bf_assign_index(bm->rd_idspace, bgp->vrf_rd_id); | |
2879 | ||
d62a17ae | 2880 | bgp_evpn_init(bgp); |
f3d32faa | 2881 | bgp_pbr_init(bgp); |
d62a17ae | 2882 | return bgp; |
718e3744 | 2883 | } |
2884 | ||
d62a17ae | 2885 | /* Return the "default VRF" instance of BGP. */ |
2886 | struct bgp *bgp_get_default(void) | |
718e3744 | 2887 | { |
d62a17ae | 2888 | struct bgp *bgp; |
2889 | struct listnode *node, *nnode; | |
2890 | ||
2891 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) | |
2892 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
2893 | return bgp; | |
2894 | return NULL; | |
718e3744 | 2895 | } |
2896 | ||
d62a17ae | 2897 | /* Lookup BGP entry. */ |
2898 | struct bgp *bgp_lookup(as_t as, const char *name) | |
718e3744 | 2899 | { |
d62a17ae | 2900 | struct bgp *bgp; |
2901 | struct listnode *node, *nnode; | |
6b0655a2 | 2902 | |
d62a17ae | 2903 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) |
2904 | if (bgp->as == as | |
2905 | && ((bgp->name == NULL && name == NULL) | |
2906 | || (bgp->name && name && strcmp(bgp->name, name) == 0))) | |
2907 | return bgp; | |
2908 | return NULL; | |
2909 | } | |
73d70fa6 | 2910 | |
d62a17ae | 2911 | /* Lookup BGP structure by view name. */ |
2912 | struct bgp *bgp_lookup_by_name(const char *name) | |
73d70fa6 | 2913 | { |
d62a17ae | 2914 | struct bgp *bgp; |
2915 | struct listnode *node, *nnode; | |
2916 | ||
2917 | for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) | |
2918 | if ((bgp->name == NULL && name == NULL) | |
2919 | || (bgp->name && name && strcmp(bgp->name, name) == 0)) | |
2920 | return bgp; | |
2921 | return NULL; | |
73d70fa6 DL |
2922 | } |
2923 | ||
d62a17ae | 2924 | /* Lookup BGP instance based on VRF id. */ |
2925 | /* Note: Only to be used for incoming messages from Zebra. */ | |
2926 | struct bgp *bgp_lookup_by_vrf_id(vrf_id_t vrf_id) | |
73d70fa6 | 2927 | { |
d62a17ae | 2928 | struct vrf *vrf; |
2929 | ||
2930 | /* Lookup VRF (in tree) and follow link. */ | |
2931 | vrf = vrf_lookup_by_id(vrf_id); | |
2932 | if (!vrf) | |
2933 | return NULL; | |
2934 | return (vrf->info) ? (struct bgp *)vrf->info : NULL; | |
73d70fa6 DL |
2935 | } |
2936 | ||
e5619c28 PG |
2937 | /* handle socket creation or deletion, if necessary |
2938 | * this is called for all new BGP instances | |
2939 | */ | |
996c9314 LB |
2940 | int bgp_handle_socket(struct bgp *bgp, struct vrf *vrf, vrf_id_t old_vrf_id, |
2941 | bool create) | |
e5619c28 PG |
2942 | { |
2943 | int ret = 0; | |
2944 | ||
2945 | /* Create BGP server socket, if listen mode not disabled */ | |
2946 | if (!bgp || bgp_option_check(BGP_OPT_NO_LISTEN)) | |
2947 | return 0; | |
3ad00234 | 2948 | if (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) { |
e5619c28 PG |
2949 | /* |
2950 | * suppress vrf socket | |
2951 | */ | |
2952 | if (create == FALSE) { | |
3ad00234 LB |
2953 | bgp_close_vrf_socket(bgp); |
2954 | return 0; | |
e5619c28 | 2955 | } |
3ad00234 LB |
2956 | if (vrf == NULL) |
2957 | return BGP_ERR_INVALID_VALUE; | |
e5619c28 PG |
2958 | /* do nothing |
2959 | * if vrf_id did not change | |
2960 | */ | |
2961 | if (vrf->vrf_id == old_vrf_id) | |
2962 | return 0; | |
2963 | if (old_vrf_id != VRF_UNKNOWN) { | |
2964 | /* look for old socket. close it. */ | |
2965 | bgp_close_vrf_socket(bgp); | |
2966 | } | |
2967 | /* if backend is not yet identified ( VRF_UNKNOWN) then | |
2968 | * creation will be done later | |
2969 | */ | |
2970 | if (vrf->vrf_id == VRF_UNKNOWN) | |
2971 | return 0; | |
3ad00234 LB |
2972 | ret = bgp_socket(bgp, bm->port, bm->address); |
2973 | if (ret < 0) | |
2974 | return BGP_ERR_INVALID_VALUE; | |
2975 | return 0; | |
2976 | } else | |
2977 | return bgp_check_main_socket(create, bgp); | |
e5619c28 PG |
2978 | } |
2979 | ||
d62a17ae | 2980 | /* Called from VTY commands. */ |
2981 | int bgp_get(struct bgp **bgp_val, as_t *as, const char *name, | |
2982 | enum bgp_instance_type inst_type) | |
2983 | { | |
2984 | struct bgp *bgp; | |
e5619c28 | 2985 | struct vrf *vrf = NULL; |
d62a17ae | 2986 | |
2987 | /* Multiple instance check. */ | |
2988 | if (bgp_option_check(BGP_OPT_MULTIPLE_INSTANCE)) { | |
2989 | if (name) | |
2990 | bgp = bgp_lookup_by_name(name); | |
2991 | else | |
2992 | bgp = bgp_get_default(); | |
2993 | ||
2994 | /* Already exists. */ | |
2995 | if (bgp) { | |
2996 | if (bgp->as != *as) { | |
2997 | *as = bgp->as; | |
2998 | return BGP_ERR_INSTANCE_MISMATCH; | |
2999 | } | |
3000 | if (bgp->inst_type != inst_type) | |
3001 | return BGP_ERR_INSTANCE_MISMATCH; | |
3002 | *bgp_val = bgp; | |
3003 | return 0; | |
3004 | } | |
3005 | } else { | |
3006 | /* BGP instance name can not be specified for single instance. | |
3007 | */ | |
3008 | if (name) | |
3009 | return BGP_ERR_MULTIPLE_INSTANCE_NOT_SET; | |
3010 | ||
3011 | /* Get default BGP structure if exists. */ | |
3012 | bgp = bgp_get_default(); | |
3013 | ||
3014 | if (bgp) { | |
3015 | if (bgp->as != *as) { | |
3016 | *as = bgp->as; | |
3017 | return BGP_ERR_AS_MISMATCH; | |
3018 | } | |
3019 | *bgp_val = bgp; | |
3020 | return 0; | |
3021 | } | |
3022 | } | |
73d70fa6 | 3023 | |
d62a17ae | 3024 | bgp = bgp_create(as, name, inst_type); |
3025 | bgp_router_id_set(bgp, &bgp->router_id_zebra); | |
3026 | bgp_address_init(bgp); | |
db0e1937 | 3027 | bgp_tip_hash_init(bgp); |
d62a17ae | 3028 | bgp_scan_init(bgp); |
3029 | *bgp_val = bgp; | |
eb821189 | 3030 | |
d62a17ae | 3031 | bgp->t_rmap_def_originate_eval = NULL; |
e5cc509c | 3032 | |
d62a17ae | 3033 | /* If Default instance or VRF, link to the VRF structure, if present. */ |
3034 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT | |
3035 | || bgp->inst_type == BGP_INSTANCE_TYPE_VRF) { | |
d62a17ae | 3036 | vrf = bgp_vrf_lookup_by_instance_type(bgp); |
3037 | if (vrf) | |
3038 | bgp_vrf_link(bgp, vrf); | |
3039 | } | |
e5619c28 PG |
3040 | /* BGP server socket already processed if BGP instance |
3041 | * already part of the list | |
3042 | */ | |
3043 | bgp_handle_socket(bgp, vrf, VRF_UNKNOWN, true); | |
3044 | listnode_add(bm->bgp, bgp); | |
718e3744 | 3045 | |
d62a17ae | 3046 | if (IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) |
3047 | bgp_zebra_instance_register(bgp); | |
718e3744 | 3048 | |
718e3744 | 3049 | |
d62a17ae | 3050 | return 0; |
718e3744 | 3051 | } |
6b0655a2 | 3052 | |
d62a17ae | 3053 | /* |
3054 | * Make BGP instance "up". Applies only to VRFs (non-default) and | |
3055 | * implies the VRF has been learnt from Zebra. | |
3056 | */ | |
3057 | void bgp_instance_up(struct bgp *bgp) | |
718e3744 | 3058 | { |
d62a17ae | 3059 | struct peer *peer; |
3060 | struct listnode *node, *next; | |
718e3744 | 3061 | |
d62a17ae | 3062 | /* Register with zebra. */ |
3063 | bgp_zebra_instance_register(bgp); | |
718e3744 | 3064 | |
d62a17ae | 3065 | /* Kick off any peers that may have been configured. */ |
3066 | for (ALL_LIST_ELEMENTS(bgp->peer, node, next, peer)) { | |
3067 | if (!BGP_PEER_START_SUPPRESSED(peer)) | |
3068 | BGP_EVENT_ADD(peer, BGP_Start); | |
718e3744 | 3069 | } |
3070 | ||
d62a17ae | 3071 | /* Process any networks that have been configured. */ |
3072 | bgp_static_add(bgp); | |
3073 | } | |
3074 | ||
3075 | /* | |
3076 | * Make BGP instance "down". Applies only to VRFs (non-default) and | |
3077 | * implies the VRF has been deleted by Zebra. | |
3078 | */ | |
3079 | void bgp_instance_down(struct bgp *bgp) | |
3080 | { | |
3081 | struct peer *peer; | |
3082 | struct listnode *node; | |
3083 | struct listnode *next; | |
3084 | ||
3085 | /* Stop timers. */ | |
3086 | if (bgp->t_rmap_def_originate_eval) { | |
3087 | BGP_TIMER_OFF(bgp->t_rmap_def_originate_eval); | |
3088 | bgp_unlock(bgp); /* TODO - This timer is started with a lock - | |
3089 | why? */ | |
718e3744 | 3090 | } |
3091 | ||
d62a17ae | 3092 | /* Bring down peers, so corresponding routes are purged. */ |
3093 | for (ALL_LIST_ELEMENTS(bgp->peer, node, next, peer)) { | |
3094 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
3095 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3096 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN); | |
3097 | else | |
3098 | bgp_session_reset(peer); | |
3099 | } | |
718e3744 | 3100 | |
d62a17ae | 3101 | /* Purge network and redistributed routes. */ |
3102 | bgp_purge_static_redist_routes(bgp); | |
ee7ca6c0 | 3103 | |
3104 | /* Cleanup registered nexthops (flags) */ | |
3105 | bgp_cleanup_nexthops(bgp); | |
718e3744 | 3106 | } |
3107 | ||
d62a17ae | 3108 | /* Delete BGP instance. */ |
3109 | int bgp_delete(struct bgp *bgp) | |
3110 | { | |
3111 | struct peer *peer; | |
3112 | struct peer_group *group; | |
3113 | struct listnode *node, *next; | |
3114 | struct vrf *vrf; | |
3115 | afi_t afi; | |
3116 | int i; | |
3117 | ||
bf383464 | 3118 | assert(bgp); |
d62a17ae | 3119 | THREAD_OFF(bgp->t_startup); |
c969b2ed DS |
3120 | THREAD_OFF(bgp->t_maxmed_onstartup); |
3121 | THREAD_OFF(bgp->t_update_delay); | |
3122 | THREAD_OFF(bgp->t_establish_wait); | |
d62a17ae | 3123 | |
3124 | if (BGP_DEBUG(zebra, ZEBRA)) { | |
3125 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) | |
3126 | zlog_debug("Deleting Default VRF"); | |
3127 | else | |
3128 | zlog_debug("Deleting %s %s", | |
3129 | (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) | |
3130 | ? "VRF" | |
3131 | : "VIEW", | |
3132 | bgp->name); | |
718e3744 | 3133 | } |
3134 | ||
10ebe1ab MK |
3135 | /* unmap from RT list */ |
3136 | bgp_evpn_vrf_delete(bgp); | |
3137 | ||
d62a17ae | 3138 | /* Stop timers. */ |
3139 | if (bgp->t_rmap_def_originate_eval) { | |
3140 | BGP_TIMER_OFF(bgp->t_rmap_def_originate_eval); | |
3141 | bgp_unlock(bgp); /* TODO - This timer is started with a lock - | |
3142 | why? */ | |
718e3744 | 3143 | } |
3144 | ||
d62a17ae | 3145 | /* Inform peers we're going down. */ |
3146 | for (ALL_LIST_ELEMENTS(bgp->peer, node, next, peer)) { | |
3147 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
3148 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3149 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN); | |
718e3744 | 3150 | } |
3151 | ||
d62a17ae | 3152 | /* Delete static routes (networks). */ |
3153 | bgp_static_delete(bgp); | |
6b0655a2 | 3154 | |
d62a17ae | 3155 | /* Unset redistribution. */ |
3156 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
3157 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
3158 | if (i != ZEBRA_ROUTE_BGP) | |
3159 | bgp_redistribute_unset(bgp, afi, i, 0); | |
718e3744 | 3160 | |
d62a17ae | 3161 | /* Free peers and peer-groups. */ |
3162 | for (ALL_LIST_ELEMENTS(bgp->group, node, next, group)) | |
3163 | peer_group_delete(group); | |
718e3744 | 3164 | |
d62a17ae | 3165 | for (ALL_LIST_ELEMENTS(bgp->peer, node, next, peer)) |
3166 | peer_delete(peer); | |
3167 | ||
3168 | if (bgp->peer_self) { | |
3169 | peer_delete(bgp->peer_self); | |
3170 | bgp->peer_self = NULL; | |
718e3744 | 3171 | } |
3172 | ||
d62a17ae | 3173 | update_bgp_group_free(bgp); |
718e3744 | 3174 | |
d62a17ae | 3175 | /* TODO - Other memory may need to be freed - e.g., NHT */ |
3176 | ||
3177 | #if ENABLE_BGP_VNC | |
3178 | rfapi_delete(bgp); | |
3179 | #endif | |
3180 | bgp_cleanup_routes(bgp); | |
718e3744 | 3181 | |
301ad80a PG |
3182 | for (afi = 0; afi < AFI_MAX; ++afi) { |
3183 | if (!bgp->vpn_policy[afi].import_redirect_rtlist) | |
3184 | continue; | |
3185 | ecommunity_free( | |
3186 | &bgp->vpn_policy[afi] | |
3187 | .import_redirect_rtlist); | |
3188 | bgp->vpn_policy[afi].import_redirect_rtlist = NULL; | |
3189 | } | |
718e3744 | 3190 | |
d62a17ae | 3191 | /* Deregister from Zebra, if needed */ |
3192 | if (IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
3193 | bgp_zebra_instance_deregister(bgp); | |
718e3744 | 3194 | |
de6058ab AK |
3195 | /* Remove visibility via the master list - there may however still be |
3196 | * routes to be processed still referencing the struct bgp. | |
3197 | */ | |
3198 | listnode_delete(bm->bgp, bgp); | |
3199 | ||
d62a17ae | 3200 | /* Free interfaces in this instance. */ |
3201 | bgp_if_finish(bgp); | |
718e3744 | 3202 | |
d62a17ae | 3203 | vrf = bgp_vrf_lookup_by_instance_type(bgp); |
e5619c28 | 3204 | bgp_handle_socket(bgp, vrf, VRF_UNKNOWN, false); |
d62a17ae | 3205 | if (vrf) |
3206 | bgp_vrf_unlink(bgp, vrf); | |
718e3744 | 3207 | |
d62a17ae | 3208 | thread_master_free_unused(bm->master); |
3209 | bgp_unlock(bgp); /* initial reference */ | |
718e3744 | 3210 | |
d62a17ae | 3211 | return 0; |
718e3744 | 3212 | } |
6b0655a2 | 3213 | |
92375c91 | 3214 | void bgp_free(struct bgp *bgp) |
d93f7ffc | 3215 | { |
d62a17ae | 3216 | afi_t afi; |
3217 | safi_t safi; | |
3218 | struct bgp_table *table; | |
3219 | struct bgp_node *rn; | |
f8265580 | 3220 | struct bgp_rmap *rmap; |
d93f7ffc | 3221 | |
d62a17ae | 3222 | QOBJ_UNREG(bgp); |
d93f7ffc | 3223 | |
affe9e99 DS |
3224 | list_delete_and_null(&bgp->group); |
3225 | list_delete_and_null(&bgp->peer); | |
966f821c | 3226 | |
d62a17ae | 3227 | if (bgp->peerhash) { |
3228 | hash_free(bgp->peerhash); | |
3229 | bgp->peerhash = NULL; | |
3230 | } | |
718e3744 | 3231 | |
05c7a1cc QY |
3232 | FOREACH_AFI_SAFI (afi, safi) { |
3233 | /* Special handling for 2-level routing tables. */ | |
3234 | if (safi == SAFI_MPLS_VPN || safi == SAFI_ENCAP | |
3235 | || safi == SAFI_EVPN) { | |
3236 | for (rn = bgp_table_top(bgp->rib[afi][safi]); rn; | |
3237 | rn = bgp_route_next(rn)) { | |
3238 | table = (struct bgp_table *)rn->info; | |
3239 | bgp_table_finish(&table); | |
d62a17ae | 3240 | } |
d62a17ae | 3241 | } |
05c7a1cc QY |
3242 | if (bgp->route[afi][safi]) |
3243 | bgp_table_finish(&bgp->route[afi][safi]); | |
3244 | if (bgp->aggregate[afi][safi]) | |
3245 | bgp_table_finish(&bgp->aggregate[afi][safi]); | |
3246 | if (bgp->rib[afi][safi]) | |
3247 | bgp_table_finish(&bgp->rib[afi][safi]); | |
3248 | rmap = &bgp->table_map[afi][safi]; | |
3249 | if (rmap->name) | |
3250 | XFREE(MTYPE_ROUTE_MAP_NAME, rmap->name); | |
3251 | } | |
718e3744 | 3252 | |
d62a17ae | 3253 | bgp_scan_finish(bgp); |
3254 | bgp_address_destroy(bgp); | |
db0e1937 | 3255 | bgp_tip_hash_destroy(bgp); |
966f821c | 3256 | |
92708db6 | 3257 | /* release the auto RD id */ |
3258 | bf_release_index(bm->rd_idspace, bgp->vrf_rd_id); | |
3259 | ||
d62a17ae | 3260 | bgp_evpn_cleanup(bgp); |
a6b07429 | 3261 | bgp_pbr_cleanup(bgp); |
829e590b DS |
3262 | |
3263 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
3264 | vpn_policy_direction_t dir; | |
3265 | ||
3266 | if (bgp->vpn_policy[afi].import_vrf) | |
3267 | list_delete_and_null(&bgp->vpn_policy[afi].import_vrf); | |
3268 | if (bgp->vpn_policy[afi].export_vrf) | |
3269 | list_delete_and_null(&bgp->vpn_policy[afi].export_vrf); | |
3270 | ||
3271 | dir = BGP_VPN_POLICY_DIR_FROMVPN; | |
3272 | if (bgp->vpn_policy[afi].rtlist[dir]) | |
3273 | ecommunity_free(&bgp->vpn_policy[afi].rtlist[dir]); | |
3274 | dir = BGP_VPN_POLICY_DIR_TOVPN; | |
3275 | if (bgp->vpn_policy[afi].rtlist[dir]) | |
3276 | ecommunity_free(&bgp->vpn_policy[afi].rtlist[dir]); | |
3277 | } | |
3278 | ||
d62a17ae | 3279 | if (bgp->name) |
3280 | XFREE(MTYPE_BGP, bgp->name); | |
3572fb26 PZ |
3281 | if (bgp->name_pretty) |
3282 | XFREE(MTYPE_BGP, bgp->name_pretty); | |
966f821c | 3283 | |
d62a17ae | 3284 | XFREE(MTYPE_BGP, bgp); |
718e3744 | 3285 | } |
3286 | ||
d62a17ae | 3287 | struct peer *peer_lookup_by_conf_if(struct bgp *bgp, const char *conf_if) |
718e3744 | 3288 | { |
d62a17ae | 3289 | struct peer *peer; |
3290 | struct listnode *node, *nnode; | |
966f821c | 3291 | |
d62a17ae | 3292 | if (!conf_if) |
3293 | return NULL; | |
6b0655a2 | 3294 | |
d62a17ae | 3295 | if (bgp != NULL) { |
3296 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
3297 | if (peer->conf_if && !strcmp(peer->conf_if, conf_if) | |
3298 | && !CHECK_FLAG(peer->sflags, | |
3299 | PEER_STATUS_ACCEPT_PEER)) | |
3300 | return peer; | |
3301 | } else if (bm->bgp != NULL) { | |
3302 | struct listnode *bgpnode, *nbgpnode; | |
3303 | ||
3304 | for (ALL_LIST_ELEMENTS(bm->bgp, bgpnode, nbgpnode, bgp)) | |
3305 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
3306 | if (peer->conf_if | |
3307 | && !strcmp(peer->conf_if, conf_if) | |
3308 | && !CHECK_FLAG(peer->sflags, | |
3309 | PEER_STATUS_ACCEPT_PEER)) | |
3310 | return peer; | |
3311 | } | |
3312 | return NULL; | |
718e3744 | 3313 | } |
3314 | ||
d62a17ae | 3315 | struct peer *peer_lookup_by_hostname(struct bgp *bgp, const char *hostname) |
718e3744 | 3316 | { |
d62a17ae | 3317 | struct peer *peer; |
3318 | struct listnode *node, *nnode; | |
6b0655a2 | 3319 | |
d62a17ae | 3320 | if (!hostname) |
3321 | return NULL; | |
6b0655a2 | 3322 | |
d62a17ae | 3323 | if (bgp != NULL) { |
3324 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
3325 | if (peer->hostname && !strcmp(peer->hostname, hostname) | |
3326 | && !CHECK_FLAG(peer->sflags, | |
3327 | PEER_STATUS_ACCEPT_PEER)) | |
3328 | return peer; | |
3329 | } else if (bm->bgp != NULL) { | |
3330 | struct listnode *bgpnode, *nbgpnode; | |
3331 | ||
3332 | for (ALL_LIST_ELEMENTS(bm->bgp, bgpnode, nbgpnode, bgp)) | |
3333 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
3334 | if (peer->hostname | |
3335 | && !strcmp(peer->hostname, hostname) | |
3336 | && !CHECK_FLAG(peer->sflags, | |
3337 | PEER_STATUS_ACCEPT_PEER)) | |
3338 | return peer; | |
3339 | } | |
3340 | return NULL; | |
3341 | } | |
3342 | ||
3343 | struct peer *peer_lookup(struct bgp *bgp, union sockunion *su) | |
3344 | { | |
3345 | struct peer *peer = NULL; | |
3346 | struct peer tmp_peer; | |
3347 | ||
3348 | memset(&tmp_peer, 0, sizeof(struct peer)); | |
3349 | ||
3350 | /* | |
3351 | * We do not want to find the doppelganger peer so search for the peer | |
3352 | * in | |
3353 | * the hash that has PEER_FLAG_CONFIG_NODE | |
3354 | */ | |
3355 | SET_FLAG(tmp_peer.flags, PEER_FLAG_CONFIG_NODE); | |
3356 | ||
3357 | tmp_peer.su = *su; | |
3358 | ||
3359 | if (bgp != NULL) { | |
3360 | peer = hash_lookup(bgp->peerhash, &tmp_peer); | |
3361 | } else if (bm->bgp != NULL) { | |
3362 | struct listnode *bgpnode, *nbgpnode; | |
3363 | ||
3364 | for (ALL_LIST_ELEMENTS(bm->bgp, bgpnode, nbgpnode, bgp)) { | |
d62a17ae | 3365 | peer = hash_lookup(bgp->peerhash, &tmp_peer); |
d62a17ae | 3366 | if (peer) |
3367 | break; | |
3368 | } | |
3369 | } | |
3370 | ||
3371 | return peer; | |
3372 | } | |
3373 | ||
3374 | struct peer *peer_create_bind_dynamic_neighbor(struct bgp *bgp, | |
3375 | union sockunion *su, | |
3376 | struct peer_group *group) | |
3377 | { | |
3378 | struct peer *peer; | |
3379 | afi_t afi; | |
3380 | safi_t safi; | |
3381 | ||
3382 | /* Create peer first; we've already checked group config is valid. */ | |
3383 | peer = peer_create(su, NULL, bgp, bgp->as, group->conf->as, | |
3384 | group->conf->as_type, 0, 0, group); | |
3385 | if (!peer) | |
3386 | return NULL; | |
3387 | ||
3388 | /* Link to group */ | |
3389 | peer = peer_lock(peer); | |
3390 | listnode_add(group->peer, peer); | |
3391 | ||
3392 | peer_group2peer_config_copy(group, peer); | |
3393 | ||
3394 | /* | |
3395 | * Bind peer for all AFs configured for the group. We don't call | |
3396 | * peer_group_bind as that is sub-optimal and does some stuff we don't | |
3397 | * want. | |
3398 | */ | |
05c7a1cc QY |
3399 | FOREACH_AFI_SAFI (afi, safi) { |
3400 | if (!group->conf->afc[afi][safi]) | |
3401 | continue; | |
3402 | peer->afc[afi][safi] = 1; | |
d62a17ae | 3403 | |
05c7a1cc QY |
3404 | if (!peer_af_find(peer, afi, safi)) |
3405 | peer_af_create(peer, afi, safi); | |
d62a17ae | 3406 | |
05c7a1cc QY |
3407 | peer_group2peer_config_copy_af(group, peer, afi, safi); |
3408 | } | |
d62a17ae | 3409 | |
3410 | /* Mark as dynamic, but also as a "config node" for other things to | |
3411 | * work. */ | |
3412 | SET_FLAG(peer->flags, PEER_FLAG_DYNAMIC_NEIGHBOR); | |
3413 | SET_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE); | |
3414 | ||
3415 | return peer; | |
3416 | } | |
3417 | ||
3418 | struct prefix * | |
3419 | peer_group_lookup_dynamic_neighbor_range(struct peer_group *group, | |
3420 | struct prefix *prefix) | |
3421 | { | |
3422 | struct listnode *node, *nnode; | |
3423 | struct prefix *range; | |
3424 | afi_t afi; | |
3425 | ||
3426 | afi = family2afi(prefix->family); | |
3427 | ||
3428 | if (group->listen_range[afi]) | |
3429 | for (ALL_LIST_ELEMENTS(group->listen_range[afi], node, nnode, | |
3430 | range)) | |
3431 | if (prefix_match(range, prefix)) | |
3432 | return range; | |
3433 | ||
3434 | return NULL; | |
3435 | } | |
3436 | ||
3437 | struct peer_group * | |
3438 | peer_group_lookup_dynamic_neighbor(struct bgp *bgp, struct prefix *prefix, | |
3439 | struct prefix **listen_range) | |
3440 | { | |
3441 | struct prefix *range = NULL; | |
3442 | struct peer_group *group = NULL; | |
3443 | struct listnode *node, *nnode; | |
3444 | ||
3445 | *listen_range = NULL; | |
3446 | if (bgp != NULL) { | |
3447 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) | |
3448 | if ((range = peer_group_lookup_dynamic_neighbor_range( | |
3449 | group, prefix))) | |
3450 | break; | |
3451 | } else if (bm->bgp != NULL) { | |
3452 | struct listnode *bgpnode, *nbgpnode; | |
3453 | ||
3454 | for (ALL_LIST_ELEMENTS(bm->bgp, bgpnode, nbgpnode, bgp)) | |
3455 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) | |
3456 | if ((range = peer_group_lookup_dynamic_neighbor_range( | |
3457 | group, prefix))) | |
3458 | goto found_range; | |
3459 | } | |
3460 | ||
3461 | found_range: | |
3462 | *listen_range = range; | |
3463 | return (group && range) ? group : NULL; | |
3464 | } | |
3465 | ||
3466 | struct peer *peer_lookup_dynamic_neighbor(struct bgp *bgp, union sockunion *su) | |
3467 | { | |
3468 | struct peer_group *group; | |
3469 | struct bgp *gbgp; | |
3470 | struct peer *peer; | |
3471 | struct prefix prefix; | |
3472 | struct prefix *listen_range; | |
3473 | int dncount; | |
3474 | char buf[PREFIX2STR_BUFFER]; | |
3475 | char buf1[PREFIX2STR_BUFFER]; | |
3476 | ||
3477 | sockunion2hostprefix(su, &prefix); | |
3478 | ||
3479 | /* See if incoming connection matches a configured listen range. */ | |
3480 | group = peer_group_lookup_dynamic_neighbor(bgp, &prefix, &listen_range); | |
3481 | ||
3482 | if (!group) | |
3483 | return NULL; | |
3484 | ||
3485 | ||
3486 | gbgp = group->bgp; | |
3487 | ||
3488 | if (!gbgp) | |
3489 | return NULL; | |
3490 | ||
3491 | prefix2str(&prefix, buf, sizeof(buf)); | |
3492 | prefix2str(listen_range, buf1, sizeof(buf1)); | |
3493 | ||
3494 | if (bgp_debug_neighbor_events(NULL)) | |
3495 | zlog_debug( | |
3496 | "Dynamic Neighbor %s matches group %s listen range %s", | |
3497 | buf, group->name, buf1); | |
3498 | ||
3499 | /* Are we within the listen limit? */ | |
3500 | dncount = gbgp->dynamic_neighbors_count; | |
3501 | ||
3502 | if (dncount >= gbgp->dynamic_neighbors_limit) { | |
3503 | if (bgp_debug_neighbor_events(NULL)) | |
3504 | zlog_debug("Dynamic Neighbor %s rejected - at limit %d", | |
3505 | inet_sutop(su, buf), | |
3506 | gbgp->dynamic_neighbors_limit); | |
3507 | return NULL; | |
3508 | } | |
3509 | ||
3510 | /* Ensure group is not disabled. */ | |
3511 | if (CHECK_FLAG(group->conf->flags, PEER_FLAG_SHUTDOWN)) { | |
3512 | if (bgp_debug_neighbor_events(NULL)) | |
3513 | zlog_debug( | |
3514 | "Dynamic Neighbor %s rejected - group %s disabled", | |
3515 | buf, group->name); | |
3516 | return NULL; | |
3517 | } | |
3518 | ||
3519 | /* Check that at least one AF is activated for the group. */ | |
3520 | if (!peer_group_af_configured(group)) { | |
3521 | if (bgp_debug_neighbor_events(NULL)) | |
3522 | zlog_debug( | |
3523 | "Dynamic Neighbor %s rejected - no AF activated for group %s", | |
3524 | buf, group->name); | |
3525 | return NULL; | |
3526 | } | |
3527 | ||
3528 | /* Create dynamic peer and bind to associated group. */ | |
3529 | peer = peer_create_bind_dynamic_neighbor(gbgp, su, group); | |
3530 | assert(peer); | |
3531 | ||
3532 | gbgp->dynamic_neighbors_count = ++dncount; | |
3533 | ||
3534 | if (bgp_debug_neighbor_events(peer)) | |
3535 | zlog_debug("%s Dynamic Neighbor added, group %s count %d", | |
3536 | peer->host, group->name, dncount); | |
3537 | ||
3538 | return peer; | |
3539 | } | |
3540 | ||
cc32742c | 3541 | static void peer_drop_dynamic_neighbor(struct peer *peer) |
d62a17ae | 3542 | { |
3543 | int dncount = -1; | |
cc32742c | 3544 | if (peer->group->bgp) { |
d62a17ae | 3545 | dncount = peer->group->bgp->dynamic_neighbors_count; |
3546 | if (dncount) | |
3547 | peer->group->bgp->dynamic_neighbors_count = --dncount; | |
3548 | } | |
3549 | if (bgp_debug_neighbor_events(peer)) | |
3550 | zlog_debug("%s dropped from group %s, count %d", peer->host, | |
3551 | peer->group->name, dncount); | |
3552 | } | |
3553 | ||
d62a17ae | 3554 | /* If peer is configured at least one address family return 1. */ |
3555 | int peer_active(struct peer *peer) | |
3556 | { | |
3557 | if (BGP_PEER_SU_UNSPEC(peer)) | |
3558 | return 0; | |
3559 | if (peer->afc[AFI_IP][SAFI_UNICAST] || peer->afc[AFI_IP][SAFI_MULTICAST] | |
3560 | || peer->afc[AFI_IP][SAFI_LABELED_UNICAST] | |
3561 | || peer->afc[AFI_IP][SAFI_MPLS_VPN] || peer->afc[AFI_IP][SAFI_ENCAP] | |
7c40bf39 | 3562 | || peer->afc[AFI_IP][SAFI_FLOWSPEC] |
d62a17ae | 3563 | || peer->afc[AFI_IP6][SAFI_UNICAST] |
3564 | || peer->afc[AFI_IP6][SAFI_MULTICAST] | |
3565 | || peer->afc[AFI_IP6][SAFI_LABELED_UNICAST] | |
3566 | || peer->afc[AFI_IP6][SAFI_MPLS_VPN] | |
3567 | || peer->afc[AFI_IP6][SAFI_ENCAP] | |
7c40bf39 | 3568 | || peer->afc[AFI_IP6][SAFI_FLOWSPEC] |
d62a17ae | 3569 | || peer->afc[AFI_L2VPN][SAFI_EVPN]) |
3570 | return 1; | |
3571 | return 0; | |
3572 | } | |
3573 | ||
3574 | /* If peer is negotiated at least one address family return 1. */ | |
3575 | int peer_active_nego(struct peer *peer) | |
3576 | { | |
3577 | if (peer->afc_nego[AFI_IP][SAFI_UNICAST] | |
3578 | || peer->afc_nego[AFI_IP][SAFI_MULTICAST] | |
3579 | || peer->afc_nego[AFI_IP][SAFI_LABELED_UNICAST] | |
3580 | || peer->afc_nego[AFI_IP][SAFI_MPLS_VPN] | |
3581 | || peer->afc_nego[AFI_IP][SAFI_ENCAP] | |
7c40bf39 | 3582 | || peer->afc_nego[AFI_IP][SAFI_FLOWSPEC] |
d62a17ae | 3583 | || peer->afc_nego[AFI_IP6][SAFI_UNICAST] |
3584 | || peer->afc_nego[AFI_IP6][SAFI_MULTICAST] | |
3585 | || peer->afc_nego[AFI_IP6][SAFI_LABELED_UNICAST] | |
3586 | || peer->afc_nego[AFI_IP6][SAFI_MPLS_VPN] | |
3587 | || peer->afc_nego[AFI_IP6][SAFI_ENCAP] | |
7c40bf39 | 3588 | || peer->afc_nego[AFI_IP6][SAFI_FLOWSPEC] |
d62a17ae | 3589 | || peer->afc_nego[AFI_L2VPN][SAFI_EVPN]) |
3590 | return 1; | |
3591 | return 0; | |
3592 | } | |
3593 | ||
3594 | /* peer_flag_change_type. */ | |
3595 | enum peer_change_type { | |
3596 | peer_change_none, | |
3597 | peer_change_reset, | |
3598 | peer_change_reset_in, | |
3599 | peer_change_reset_out, | |
3600 | }; | |
3601 | ||
3602 | static void peer_change_action(struct peer *peer, afi_t afi, safi_t safi, | |
3603 | enum peer_change_type type) | |
3604 | { | |
3605 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
3606 | return; | |
3607 | ||
3608 | if (peer->status != Established) | |
3609 | return; | |
3610 | ||
3611 | if (type == peer_change_reset) { | |
3612 | /* If we're resetting session, we've to delete both peer struct | |
3613 | */ | |
3614 | if ((peer->doppelganger) | |
3615 | && (peer->doppelganger->status != Deleted) | |
3616 | && (!CHECK_FLAG(peer->doppelganger->flags, | |
3617 | PEER_FLAG_CONFIG_NODE))) | |
3618 | peer_delete(peer->doppelganger); | |
3619 | ||
3620 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3621 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
3622 | } else if (type == peer_change_reset_in) { | |
3623 | if (CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_OLD_RCV) | |
3624 | || CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_NEW_RCV)) | |
3625 | bgp_route_refresh_send(peer, afi, safi, 0, 0, 0); | |
3626 | else { | |
3627 | if ((peer->doppelganger) | |
3628 | && (peer->doppelganger->status != Deleted) | |
3629 | && (!CHECK_FLAG(peer->doppelganger->flags, | |
3630 | PEER_FLAG_CONFIG_NODE))) | |
3631 | peer_delete(peer->doppelganger); | |
3632 | ||
3633 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3634 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
3635 | } | |
3636 | } else if (type == peer_change_reset_out) { | |
3637 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
3638 | bgp_announce_route(peer, afi, safi); | |
3639 | } | |
3640 | } | |
3641 | ||
3642 | struct peer_flag_action { | |
3643 | /* Peer's flag. */ | |
d7c0a89a | 3644 | uint32_t flag; |
d62a17ae | 3645 | |
3646 | /* This flag can be set for peer-group member. */ | |
d7c0a89a | 3647 | uint8_t not_for_member; |
d62a17ae | 3648 | |
3649 | /* Action when the flag is changed. */ | |
3650 | enum peer_change_type type; | |
d62a17ae | 3651 | }; |
3652 | ||
3653 | static const struct peer_flag_action peer_flag_action_list[] = { | |
3654 | {PEER_FLAG_PASSIVE, 0, peer_change_reset}, | |
3655 | {PEER_FLAG_SHUTDOWN, 0, peer_change_reset}, | |
3656 | {PEER_FLAG_DONT_CAPABILITY, 0, peer_change_none}, | |
3657 | {PEER_FLAG_OVERRIDE_CAPABILITY, 0, peer_change_none}, | |
3658 | {PEER_FLAG_STRICT_CAP_MATCH, 0, peer_change_none}, | |
3659 | {PEER_FLAG_DYNAMIC_CAPABILITY, 0, peer_change_reset}, | |
3660 | {PEER_FLAG_DISABLE_CONNECTED_CHECK, 0, peer_change_reset}, | |
3661 | {PEER_FLAG_CAPABILITY_ENHE, 0, peer_change_reset}, | |
47cbc09b | 3662 | {PEER_FLAG_ENFORCE_FIRST_AS, 0, peer_change_reset_in}, |
b90a8e13 PM |
3663 | {PEER_FLAG_ROUTEADV, 0, peer_change_none}, |
3664 | {PEER_FLAG_TIMER, 0, peer_change_none}, | |
3665 | {PEER_FLAG_TIMER_CONNECT, 0, peer_change_none}, | |
a14810f4 PM |
3666 | {PEER_FLAG_PASSWORD, 0, peer_change_none}, |
3667 | {PEER_FLAG_LOCAL_AS, 0, peer_change_none}, | |
3668 | {PEER_FLAG_LOCAL_AS_NO_PREPEND, 0, peer_change_none}, | |
3669 | {PEER_FLAG_LOCAL_AS_REPLACE_AS, 0, peer_change_none}, | |
3670 | {PEER_FLAG_UPDATE_SOURCE, 0, peer_change_none}, | |
d62a17ae | 3671 | {0, 0, 0}}; |
3672 | ||
3673 | static const struct peer_flag_action peer_af_flag_action_list[] = { | |
3674 | {PEER_FLAG_SEND_COMMUNITY, 1, peer_change_reset_out}, | |
3675 | {PEER_FLAG_SEND_EXT_COMMUNITY, 1, peer_change_reset_out}, | |
3676 | {PEER_FLAG_SEND_LARGE_COMMUNITY, 1, peer_change_reset_out}, | |
3677 | {PEER_FLAG_NEXTHOP_SELF, 1, peer_change_reset_out}, | |
3678 | {PEER_FLAG_REFLECTOR_CLIENT, 1, peer_change_reset}, | |
3679 | {PEER_FLAG_RSERVER_CLIENT, 1, peer_change_reset}, | |
3680 | {PEER_FLAG_SOFT_RECONFIG, 0, peer_change_reset_in}, | |
3681 | {PEER_FLAG_AS_PATH_UNCHANGED, 1, peer_change_reset_out}, | |
3682 | {PEER_FLAG_NEXTHOP_UNCHANGED, 1, peer_change_reset_out}, | |
3683 | {PEER_FLAG_MED_UNCHANGED, 1, peer_change_reset_out}, | |
598ce6bd | 3684 | {PEER_FLAG_DEFAULT_ORIGINATE, 0, peer_change_none}, |
d62a17ae | 3685 | {PEER_FLAG_REMOVE_PRIVATE_AS, 1, peer_change_reset_out}, |
3686 | {PEER_FLAG_ALLOWAS_IN, 0, peer_change_reset_in}, | |
3687 | {PEER_FLAG_ALLOWAS_IN_ORIGIN, 0, peer_change_reset_in}, | |
3688 | {PEER_FLAG_ORF_PREFIX_SM, 1, peer_change_reset}, | |
3689 | {PEER_FLAG_ORF_PREFIX_RM, 1, peer_change_reset}, | |
598ce6bd PM |
3690 | {PEER_FLAG_MAX_PREFIX, 0, peer_change_none}, |
3691 | {PEER_FLAG_MAX_PREFIX_WARNING, 0, peer_change_none}, | |
d62a17ae | 3692 | {PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED, 0, peer_change_reset_out}, |
3693 | {PEER_FLAG_FORCE_NEXTHOP_SELF, 1, peer_change_reset_out}, | |
3694 | {PEER_FLAG_REMOVE_PRIVATE_AS_ALL, 1, peer_change_reset_out}, | |
3695 | {PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE, 1, peer_change_reset_out}, | |
3696 | {PEER_FLAG_AS_OVERRIDE, 1, peer_change_reset_out}, | |
3697 | {PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE, 1, peer_change_reset_out}, | |
3698 | {PEER_FLAG_ADDPATH_TX_ALL_PATHS, 1, peer_change_reset}, | |
3699 | {PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS, 1, peer_change_reset}, | |
3700 | {PEER_FLAG_WEIGHT, 0, peer_change_reset_in}, | |
3701 | {0, 0, 0}}; | |
3702 | ||
3703 | /* Proper action set. */ | |
3704 | static int peer_flag_action_set(const struct peer_flag_action *action_list, | |
3705 | int size, struct peer_flag_action *action, | |
d7c0a89a | 3706 | uint32_t flag) |
d62a17ae | 3707 | { |
3708 | int i; | |
3709 | int found = 0; | |
3710 | int reset_in = 0; | |
3711 | int reset_out = 0; | |
3712 | const struct peer_flag_action *match = NULL; | |
3713 | ||
3714 | /* Check peer's frag action. */ | |
3715 | for (i = 0; i < size; i++) { | |
3716 | match = &action_list[i]; | |
3717 | ||
3718 | if (match->flag == 0) | |
3719 | break; | |
3720 | ||
3721 | if (match->flag & flag) { | |
3722 | found = 1; | |
3723 | ||
3724 | if (match->type == peer_change_reset_in) | |
3725 | reset_in = 1; | |
3726 | if (match->type == peer_change_reset_out) | |
3727 | reset_out = 1; | |
3728 | if (match->type == peer_change_reset) { | |
3729 | reset_in = 1; | |
3730 | reset_out = 1; | |
3731 | } | |
3732 | if (match->not_for_member) | |
3733 | action->not_for_member = 1; | |
3734 | } | |
3735 | } | |
3736 | ||
3737 | /* Set peer clear type. */ | |
3738 | if (reset_in && reset_out) | |
3739 | action->type = peer_change_reset; | |
3740 | else if (reset_in) | |
3741 | action->type = peer_change_reset_in; | |
3742 | else if (reset_out) | |
3743 | action->type = peer_change_reset_out; | |
3744 | else | |
3745 | action->type = peer_change_none; | |
3746 | ||
3747 | return found; | |
3748 | } | |
3749 | ||
d7c0a89a | 3750 | static void peer_flag_modify_action(struct peer *peer, uint32_t flag) |
d62a17ae | 3751 | { |
3752 | if (flag == PEER_FLAG_SHUTDOWN) { | |
3753 | if (CHECK_FLAG(peer->flags, flag)) { | |
3754 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT)) | |
3755 | peer_nsf_stop(peer); | |
3756 | ||
3757 | UNSET_FLAG(peer->sflags, PEER_STATUS_PREFIX_OVERFLOW); | |
3758 | if (peer->t_pmax_restart) { | |
3759 | BGP_TIMER_OFF(peer->t_pmax_restart); | |
3760 | if (bgp_debug_neighbor_events(peer)) | |
3761 | zlog_debug( | |
3762 | "%s Maximum-prefix restart timer canceled", | |
3763 | peer->host); | |
3764 | } | |
3765 | ||
3766 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT)) | |
3767 | peer_nsf_stop(peer); | |
3768 | ||
3769 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
3770 | char *msg = peer->tx_shutdown_message; | |
3771 | size_t msglen; | |
3772 | ||
3773 | if (!msg && peer_group_active(peer)) | |
3774 | msg = peer->group->conf | |
3775 | ->tx_shutdown_message; | |
3776 | msglen = msg ? strlen(msg) : 0; | |
3777 | if (msglen > 128) | |
3778 | msglen = 128; | |
3779 | ||
3780 | if (msglen) { | |
d7c0a89a | 3781 | uint8_t msgbuf[129]; |
d62a17ae | 3782 | |
3783 | msgbuf[0] = msglen; | |
3784 | memcpy(msgbuf + 1, msg, msglen); | |
3785 | ||
3786 | bgp_notify_send_with_data( | |
3787 | peer, BGP_NOTIFY_CEASE, | |
3788 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN, | |
3789 | msgbuf, msglen + 1); | |
3790 | } else | |
3791 | bgp_notify_send( | |
3792 | peer, BGP_NOTIFY_CEASE, | |
3793 | BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN); | |
3794 | } else | |
3795 | bgp_session_reset(peer); | |
3796 | } else { | |
3797 | peer->v_start = BGP_INIT_START_TIMER; | |
3798 | BGP_EVENT_ADD(peer, BGP_Stop); | |
3799 | } | |
3800 | } else if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { | |
3801 | if (flag == PEER_FLAG_DYNAMIC_CAPABILITY) | |
3802 | peer->last_reset = PEER_DOWN_CAPABILITY_CHANGE; | |
3803 | else if (flag == PEER_FLAG_PASSIVE) | |
3804 | peer->last_reset = PEER_DOWN_PASSIVE_CHANGE; | |
3805 | else if (flag == PEER_FLAG_DISABLE_CONNECTED_CHECK) | |
3806 | peer->last_reset = PEER_DOWN_MULTIHOP_CHANGE; | |
3807 | ||
3808 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
3809 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
3810 | } else | |
3811 | bgp_session_reset(peer); | |
3812 | } | |
3813 | ||
3814 | /* Change specified peer flag. */ | |
d7c0a89a | 3815 | static int peer_flag_modify(struct peer *peer, uint32_t flag, int set) |
d62a17ae | 3816 | { |
3817 | int found; | |
3818 | int size; | |
9fb964de PM |
3819 | bool invert, member_invert; |
3820 | struct peer *member; | |
d62a17ae | 3821 | struct listnode *node, *nnode; |
3822 | struct peer_flag_action action; | |
3823 | ||
3824 | memset(&action, 0, sizeof(struct peer_flag_action)); | |
3825 | size = sizeof peer_flag_action_list / sizeof(struct peer_flag_action); | |
3826 | ||
9fb964de | 3827 | invert = CHECK_FLAG(peer->flags_invert, flag); |
d62a17ae | 3828 | found = peer_flag_action_set(peer_flag_action_list, size, &action, |
3829 | flag); | |
3830 | ||
9fb964de | 3831 | /* Abort if no flag action exists. */ |
d62a17ae | 3832 | if (!found) |
3833 | return BGP_ERR_INVALID_FLAG; | |
3834 | ||
9fb964de | 3835 | /* Check for flag conflict: STRICT_CAP_MATCH && OVERRIDE_CAPABILITY */ |
d62a17ae | 3836 | if (set && CHECK_FLAG(peer->flags | flag, PEER_FLAG_STRICT_CAP_MATCH) |
3837 | && CHECK_FLAG(peer->flags | flag, PEER_FLAG_OVERRIDE_CAPABILITY)) | |
3838 | return BGP_ERR_PEER_FLAG_CONFLICT; | |
3839 | ||
9fb964de | 3840 | /* Handle flag updates where desired state matches current state. */ |
d62a17ae | 3841 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
9fb964de PM |
3842 | if (set && CHECK_FLAG(peer->flags, flag)) { |
3843 | COND_FLAG(peer->flags_override, flag, !invert); | |
d62a17ae | 3844 | return 0; |
9fb964de PM |
3845 | } |
3846 | ||
3847 | if (!set && !CHECK_FLAG(peer->flags, flag)) { | |
3848 | COND_FLAG(peer->flags_override, flag, invert); | |
d62a17ae | 3849 | return 0; |
9fb964de | 3850 | } |
d62a17ae | 3851 | } |
3852 | ||
9fb964de PM |
3853 | /* Inherit from peer-group or set/unset flags accordingly. */ |
3854 | if (peer_group_active(peer) && set == invert) | |
3855 | peer_flag_inherit(peer, flag); | |
d62a17ae | 3856 | else |
9fb964de | 3857 | COND_FLAG(peer->flags, flag, set); |
d62a17ae | 3858 | |
9fb964de | 3859 | /* Check if handling a regular peer. */ |
d62a17ae | 3860 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
9fb964de PM |
3861 | /* Update flag override state accordingly. */ |
3862 | COND_FLAG(peer->flags_override, flag, set != invert); | |
3863 | ||
3864 | /* Execute flag action on peer. */ | |
d62a17ae | 3865 | if (action.type == peer_change_reset) |
3866 | peer_flag_modify_action(peer, flag); | |
3867 | ||
9fb964de | 3868 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 3869 | return 0; |
3870 | } | |
3871 | ||
9fb964de PM |
3872 | /* |
3873 | * Update peer-group members, unless they are explicitely overriding | |
3874 | * peer-group configuration. | |
3875 | */ | |
3876 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
3877 | /* Skip peers with overridden configuration. */ | |
3878 | if (CHECK_FLAG(member->flags_override, flag)) | |
3879 | continue; | |
d62a17ae | 3880 | |
527de3dc PM |
3881 | /* Check if only member without group is inverted. */ |
3882 | member_invert = | |
3883 | CHECK_FLAG(member->flags_invert, flag) && !invert; | |
d62a17ae | 3884 | |
9fb964de PM |
3885 | /* Skip peers with equivalent configuration. */ |
3886 | if (set != member_invert && CHECK_FLAG(member->flags, flag)) | |
d62a17ae | 3887 | continue; |
3888 | ||
9fb964de | 3889 | if (set == member_invert && !CHECK_FLAG(member->flags, flag)) |
d62a17ae | 3890 | continue; |
3891 | ||
9fb964de PM |
3892 | /* Update flag on peer-group member. */ |
3893 | COND_FLAG(member->flags, flag, set != member_invert); | |
d62a17ae | 3894 | |
9fb964de | 3895 | /* Execute flag action on peer-group member. */ |
d62a17ae | 3896 | if (action.type == peer_change_reset) |
9fb964de | 3897 | peer_flag_modify_action(member, flag); |
d62a17ae | 3898 | } |
9fb964de | 3899 | |
d62a17ae | 3900 | return 0; |
3901 | } | |
3902 | ||
d7c0a89a | 3903 | int peer_flag_set(struct peer *peer, uint32_t flag) |
d62a17ae | 3904 | { |
3905 | return peer_flag_modify(peer, flag, 1); | |
3906 | } | |
3907 | ||
d7c0a89a | 3908 | int peer_flag_unset(struct peer *peer, uint32_t flag) |
d62a17ae | 3909 | { |
3910 | return peer_flag_modify(peer, flag, 0); | |
3911 | } | |
3912 | ||
3913 | static int peer_af_flag_modify(struct peer *peer, afi_t afi, safi_t safi, | |
27c05d4d | 3914 | uint32_t flag, bool set) |
d62a17ae | 3915 | { |
3916 | int found; | |
3917 | int size; | |
27c05d4d | 3918 | int addpath_tx_used; |
527de3dc PM |
3919 | bool invert, member_invert; |
3920 | struct bgp *bgp; | |
3921 | struct peer *member; | |
d62a17ae | 3922 | struct listnode *node, *nnode; |
d62a17ae | 3923 | struct peer_flag_action action; |
d62a17ae | 3924 | |
3925 | memset(&action, 0, sizeof(struct peer_flag_action)); | |
3926 | size = sizeof peer_af_flag_action_list | |
3927 | / sizeof(struct peer_flag_action); | |
3928 | ||
27c05d4d | 3929 | invert = CHECK_FLAG(peer->af_flags_invert[afi][safi], flag); |
d62a17ae | 3930 | found = peer_flag_action_set(peer_af_flag_action_list, size, &action, |
3931 | flag); | |
3932 | ||
527de3dc | 3933 | /* Abort if flag action exists. */ |
d62a17ae | 3934 | if (!found) |
3935 | return BGP_ERR_INVALID_FLAG; | |
3936 | ||
3937 | /* Special check for reflector client. */ | |
3938 | if (flag & PEER_FLAG_REFLECTOR_CLIENT | |
3939 | && peer_sort(peer) != BGP_PEER_IBGP) | |
3940 | return BGP_ERR_NOT_INTERNAL_PEER; | |
3941 | ||
3942 | /* Special check for remove-private-AS. */ | |
3943 | if (flag & PEER_FLAG_REMOVE_PRIVATE_AS | |
3944 | && peer_sort(peer) == BGP_PEER_IBGP) | |
3945 | return BGP_ERR_REMOVE_PRIVATE_AS; | |
3946 | ||
3947 | /* as-override is not allowed for IBGP peers */ | |
3948 | if (flag & PEER_FLAG_AS_OVERRIDE && peer_sort(peer) == BGP_PEER_IBGP) | |
3949 | return BGP_ERR_AS_OVERRIDE; | |
3950 | ||
527de3dc | 3951 | /* Handle flag updates where desired state matches current state. */ |
d62a17ae | 3952 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
598ce6bd | 3953 | if (set && CHECK_FLAG(peer->af_flags[afi][safi], flag)) { |
527de3dc PM |
3954 | COND_FLAG(peer->af_flags_override[afi][safi], flag, |
3955 | !invert); | |
d62a17ae | 3956 | return 0; |
598ce6bd PM |
3957 | } |
3958 | ||
3959 | if (!set && !CHECK_FLAG(peer->af_flags[afi][safi], flag)) { | |
527de3dc PM |
3960 | COND_FLAG(peer->af_flags_override[afi][safi], flag, |
3961 | invert); | |
d62a17ae | 3962 | return 0; |
598ce6bd | 3963 | } |
d62a17ae | 3964 | } |
3965 | ||
ace295a9 MK |
3966 | /* |
3967 | * For EVPN we implicitly set the NEXTHOP_UNCHANGED flag, | |
3968 | * if we are setting/unsetting flags which conflict with this flag | |
3969 | * handle accordingly | |
3970 | */ | |
3971 | if (afi == AFI_L2VPN && safi == SAFI_EVPN) { | |
3972 | if (set) { | |
3973 | ||
3518f352 DS |
3974 | /* |
3975 | * if we are setting NEXTHOP_SELF, we need to unset the | |
3976 | * NEXTHOP_UNCHANGED flag | |
3977 | */ | |
ace295a9 MK |
3978 | if (CHECK_FLAG(flag, PEER_FLAG_NEXTHOP_SELF) || |
3979 | CHECK_FLAG(flag, PEER_FLAG_FORCE_NEXTHOP_SELF)) | |
3980 | UNSET_FLAG(peer->af_flags[afi][safi], | |
3981 | PEER_FLAG_NEXTHOP_UNCHANGED); | |
3982 | } else { | |
3983 | ||
3518f352 DS |
3984 | /* |
3985 | * if we are unsetting NEXTHOP_SELF, we need to set the | |
ace295a9 MK |
3986 | * NEXTHOP_UNCHANGED flag to reset the defaults for EVPN |
3987 | */ | |
3988 | if (CHECK_FLAG(flag, PEER_FLAG_NEXTHOP_SELF) || | |
3989 | CHECK_FLAG(flag, PEER_FLAG_FORCE_NEXTHOP_SELF)) | |
3990 | SET_FLAG(peer->af_flags[afi][safi], | |
3991 | PEER_FLAG_NEXTHOP_UNCHANGED); | |
3992 | } | |
3993 | } | |
3994 | ||
527de3dc PM |
3995 | /* Inherit from peer-group or set/unset flags accordingly. */ |
3996 | if (peer_group_active(peer) && set == invert) | |
3997 | peer_af_flag_inherit(peer, afi, safi, flag); | |
3998 | else | |
3999 | COND_FLAG(peer->af_flags[afi][safi], flag, set); | |
d62a17ae | 4000 | |
4001 | /* Execute action when peer is established. */ | |
4002 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP) | |
4003 | && peer->status == Established) { | |
4004 | if (!set && flag == PEER_FLAG_SOFT_RECONFIG) | |
4005 | bgp_clear_adj_in(peer, afi, safi); | |
4006 | else { | |
4007 | if (flag == PEER_FLAG_REFLECTOR_CLIENT) | |
4008 | peer->last_reset = PEER_DOWN_RR_CLIENT_CHANGE; | |
4009 | else if (flag == PEER_FLAG_RSERVER_CLIENT) | |
4010 | peer->last_reset = PEER_DOWN_RS_CLIENT_CHANGE; | |
4011 | else if (flag == PEER_FLAG_ORF_PREFIX_SM) | |
4012 | peer->last_reset = PEER_DOWN_CAPABILITY_CHANGE; | |
4013 | else if (flag == PEER_FLAG_ORF_PREFIX_RM) | |
4014 | peer->last_reset = PEER_DOWN_CAPABILITY_CHANGE; | |
4015 | ||
4016 | peer_change_action(peer, afi, safi, action.type); | |
4017 | } | |
4018 | } | |
4019 | ||
527de3dc PM |
4020 | /* Check if handling a regular peer. */ |
4021 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4022 | COND_FLAG(peer->af_flags_override[afi][safi], flag, | |
4023 | set != invert); | |
4024 | } else { | |
4025 | /* | |
4026 | * Update peer-group members, unless they are explicitely | |
4027 | * overriding peer-group configuration. | |
4028 | */ | |
4029 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, | |
4030 | member)) { | |
4031 | /* Skip peers with overridden configuration. */ | |
4032 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
598ce6bd PM |
4033 | flag)) |
4034 | continue; | |
4035 | ||
527de3dc PM |
4036 | /* Check if only member without group is inverted. */ |
4037 | member_invert = | |
4038 | CHECK_FLAG(member->af_flags_invert[afi][safi], | |
4039 | flag) | |
4040 | && !invert; | |
4041 | ||
4042 | /* Skip peers with equivalent configuration. */ | |
4043 | if (set != member_invert | |
4044 | && CHECK_FLAG(member->af_flags[afi][safi], flag)) | |
d62a17ae | 4045 | continue; |
4046 | ||
527de3dc PM |
4047 | if (set == member_invert |
4048 | && !CHECK_FLAG(member->af_flags[afi][safi], flag)) | |
d62a17ae | 4049 | continue; |
4050 | ||
527de3dc PM |
4051 | /* Update flag on peer-group member. */ |
4052 | COND_FLAG(member->af_flags[afi][safi], flag, | |
4053 | set != member_invert); | |
d62a17ae | 4054 | |
527de3dc PM |
4055 | /* Execute flag action on peer-group member. */ |
4056 | if (member->status == Established) { | |
d62a17ae | 4057 | if (!set && flag == PEER_FLAG_SOFT_RECONFIG) |
527de3dc | 4058 | bgp_clear_adj_in(member, afi, safi); |
d62a17ae | 4059 | else { |
4060 | if (flag == PEER_FLAG_REFLECTOR_CLIENT) | |
527de3dc | 4061 | member->last_reset = |
d62a17ae | 4062 | PEER_DOWN_RR_CLIENT_CHANGE; |
4063 | else if (flag | |
4064 | == PEER_FLAG_RSERVER_CLIENT) | |
527de3dc | 4065 | member->last_reset = |
d62a17ae | 4066 | PEER_DOWN_RS_CLIENT_CHANGE; |
4067 | else if (flag | |
4068 | == PEER_FLAG_ORF_PREFIX_SM) | |
527de3dc | 4069 | member->last_reset = |
d62a17ae | 4070 | PEER_DOWN_CAPABILITY_CHANGE; |
4071 | else if (flag | |
4072 | == PEER_FLAG_ORF_PREFIX_RM) | |
527de3dc | 4073 | member->last_reset = |
d62a17ae | 4074 | PEER_DOWN_CAPABILITY_CHANGE; |
4075 | ||
527de3dc | 4076 | peer_change_action(member, afi, safi, |
d62a17ae | 4077 | action.type); |
4078 | } | |
4079 | } | |
4080 | } | |
4081 | } | |
4082 | ||
4083 | /* Track if addpath TX is in use */ | |
996c9314 LB |
4084 | if (flag & (PEER_FLAG_ADDPATH_TX_ALL_PATHS |
4085 | | PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS)) { | |
d62a17ae | 4086 | bgp = peer->bgp; |
4087 | addpath_tx_used = 0; | |
4088 | ||
4089 | if (set) { | |
4090 | addpath_tx_used = 1; | |
4091 | ||
4092 | if (flag & PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS) { | |
4093 | if (!bgp_flag_check( | |
4094 | bgp, BGP_FLAG_DETERMINISTIC_MED)) { | |
b7cd3069 | 4095 | zlog_info( |
d62a17ae | 4096 | "%s: enabling bgp deterministic-med, this is required" |
4097 | " for addpath-tx-bestpath-per-AS", | |
4098 | peer->host); | |
4099 | bgp_flag_set( | |
4100 | bgp, | |
4101 | BGP_FLAG_DETERMINISTIC_MED); | |
4102 | bgp_recalculate_all_bestpaths(bgp); | |
4103 | } | |
4104 | } | |
4105 | } else { | |
4106 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, | |
527de3dc PM |
4107 | member)) { |
4108 | if (CHECK_FLAG(member->af_flags[afi][safi], | |
d62a17ae | 4109 | PEER_FLAG_ADDPATH_TX_ALL_PATHS) |
4110 | || CHECK_FLAG( | |
527de3dc | 4111 | member->af_flags[afi][safi], |
d62a17ae | 4112 | PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS)) { |
4113 | addpath_tx_used = 1; | |
4114 | break; | |
4115 | } | |
4116 | } | |
4117 | } | |
4118 | ||
4119 | bgp->addpath_tx_used[afi][safi] = addpath_tx_used; | |
4120 | } | |
4121 | ||
4122 | return 0; | |
4123 | } | |
4124 | ||
d7c0a89a | 4125 | int peer_af_flag_set(struct peer *peer, afi_t afi, safi_t safi, uint32_t flag) |
d62a17ae | 4126 | { |
4127 | return peer_af_flag_modify(peer, afi, safi, flag, 1); | |
4128 | } | |
4129 | ||
d7c0a89a | 4130 | int peer_af_flag_unset(struct peer *peer, afi_t afi, safi_t safi, uint32_t flag) |
d62a17ae | 4131 | { |
4132 | return peer_af_flag_modify(peer, afi, safi, flag, 0); | |
4133 | } | |
4134 | ||
4135 | ||
4136 | int peer_tx_shutdown_message_set(struct peer *peer, const char *msg) | |
4137 | { | |
4138 | XFREE(MTYPE_PEER_TX_SHUTDOWN_MSG, peer->tx_shutdown_message); | |
4139 | peer->tx_shutdown_message = | |
4140 | msg ? XSTRDUP(MTYPE_PEER_TX_SHUTDOWN_MSG, msg) : NULL; | |
4141 | return 0; | |
4142 | } | |
4143 | ||
4144 | int peer_tx_shutdown_message_unset(struct peer *peer) | |
4145 | { | |
4146 | XFREE(MTYPE_PEER_TX_SHUTDOWN_MSG, peer->tx_shutdown_message); | |
4147 | return 0; | |
4148 | } | |
4149 | ||
4150 | ||
4151 | /* EBGP multihop configuration. */ | |
4152 | int peer_ebgp_multihop_set(struct peer *peer, int ttl) | |
4153 | { | |
4154 | struct peer_group *group; | |
4155 | struct listnode *node, *nnode; | |
4156 | struct peer *peer1; | |
4157 | ||
4158 | if (peer->sort == BGP_PEER_IBGP || peer->conf_if) | |
4159 | return 0; | |
4160 | ||
4161 | /* see comment in peer_ttl_security_hops_set() */ | |
4162 | if (ttl != MAXTTL) { | |
4163 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4164 | group = peer->group; | |
4165 | if (group->conf->gtsm_hops != 0) | |
4166 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
4167 | ||
4168 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, | |
4169 | peer1)) { | |
4170 | if (peer1->sort == BGP_PEER_IBGP) | |
4171 | continue; | |
4172 | ||
4173 | if (peer1->gtsm_hops != 0) | |
4174 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
4175 | } | |
4176 | } else { | |
4177 | if (peer->gtsm_hops != 0) | |
4178 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
4179 | } | |
4180 | } | |
4181 | ||
4182 | peer->ttl = ttl; | |
4183 | ||
4184 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4185 | if (peer->fd >= 0 && peer->sort != BGP_PEER_IBGP) { | |
4186 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
4187 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4188 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4189 | else | |
4190 | bgp_session_reset(peer); | |
4191 | } | |
4192 | } else { | |
4193 | group = peer->group; | |
4194 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
4195 | if (peer->sort == BGP_PEER_IBGP) | |
4196 | continue; | |
4197 | ||
4198 | peer->ttl = group->conf->ttl; | |
4199 | ||
4200 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
4201 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4202 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4203 | else | |
4204 | bgp_session_reset(peer); | |
4205 | } | |
4206 | } | |
4207 | return 0; | |
4208 | } | |
4209 | ||
4210 | int peer_ebgp_multihop_unset(struct peer *peer) | |
4211 | { | |
4212 | struct peer_group *group; | |
4213 | struct listnode *node, *nnode; | |
4214 | ||
4215 | if (peer->sort == BGP_PEER_IBGP) | |
4216 | return 0; | |
4217 | ||
4218 | if (peer->gtsm_hops != 0 && peer->ttl != MAXTTL) | |
4219 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
4220 | ||
4221 | if (peer_group_active(peer)) | |
4222 | peer->ttl = peer->group->conf->ttl; | |
4223 | else | |
4224 | peer->ttl = 1; | |
4225 | ||
4226 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
4227 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
4228 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4229 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4230 | else | |
4231 | bgp_session_reset(peer); | |
4232 | } else { | |
4233 | group = peer->group; | |
4234 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
4235 | if (peer->sort == BGP_PEER_IBGP) | |
4236 | continue; | |
4237 | ||
4238 | peer->ttl = 1; | |
4239 | ||
4240 | if (peer->fd >= 0) { | |
4241 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
4242 | bgp_notify_send( | |
4243 | peer, BGP_NOTIFY_CEASE, | |
4244 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4245 | else | |
4246 | bgp_session_reset(peer); | |
4247 | } | |
4248 | } | |
4249 | } | |
4250 | return 0; | |
4251 | } | |
4252 | ||
4253 | /* Neighbor description. */ | |
4254 | int peer_description_set(struct peer *peer, const char *desc) | |
4255 | { | |
4256 | if (peer->desc) | |
4257 | XFREE(MTYPE_PEER_DESC, peer->desc); | |
4258 | ||
4259 | peer->desc = XSTRDUP(MTYPE_PEER_DESC, desc); | |
4260 | ||
4261 | return 0; | |
4262 | } | |
4263 | ||
4264 | int peer_description_unset(struct peer *peer) | |
4265 | { | |
4266 | if (peer->desc) | |
4267 | XFREE(MTYPE_PEER_DESC, peer->desc); | |
4268 | ||
4269 | peer->desc = NULL; | |
4270 | ||
4271 | return 0; | |
4272 | } | |
4273 | ||
4274 | /* Neighbor update-source. */ | |
4275 | int peer_update_source_if_set(struct peer *peer, const char *ifname) | |
4276 | { | |
a14810f4 | 4277 | struct peer *member; |
d62a17ae | 4278 | struct listnode *node, *nnode; |
4279 | ||
a14810f4 PM |
4280 | /* Set flag and configuration on peer. */ |
4281 | peer_flag_set(peer, PEER_FLAG_UPDATE_SOURCE); | |
d62a17ae | 4282 | if (peer->update_if) { |
a14810f4 | 4283 | if (strcmp(peer->update_if, ifname) == 0) |
d62a17ae | 4284 | return 0; |
d62a17ae | 4285 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); |
d62a17ae | 4286 | } |
d62a17ae | 4287 | peer->update_if = XSTRDUP(MTYPE_PEER_UPDATE_SOURCE, ifname); |
a14810f4 PM |
4288 | sockunion_free(peer->update_source); |
4289 | peer->update_source = NULL; | |
d62a17ae | 4290 | |
a14810f4 | 4291 | /* Check if handling a regular peer. */ |
d62a17ae | 4292 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 4293 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 4294 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
4295 | peer->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4296 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4297 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4298 | } else | |
4299 | bgp_session_reset(peer); | |
a14810f4 PM |
4300 | |
4301 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 4302 | return 0; |
4303 | } | |
4304 | ||
a14810f4 PM |
4305 | /* |
4306 | * Set flag and configuration on all peer-group members, unless they are | |
4307 | * explicitely overriding peer-group configuration. | |
4308 | */ | |
4309 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4310 | /* Skip peers with overridden configuration. */ | |
4311 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_UPDATE_SOURCE)) | |
4312 | continue; | |
d62a17ae | 4313 | |
a14810f4 PM |
4314 | /* Skip peers with the same configuration. */ |
4315 | if (member->update_if) { | |
4316 | if (strcmp(member->update_if, ifname) == 0) | |
4317 | continue; | |
4318 | XFREE(MTYPE_PEER_UPDATE_SOURCE, member->update_if); | |
d62a17ae | 4319 | } |
4320 | ||
a14810f4 PM |
4321 | /* Set flag and configuration on peer-group member. */ |
4322 | SET_FLAG(member->flags, PEER_FLAG_UPDATE_SOURCE); | |
4323 | member->update_if = XSTRDUP(MTYPE_PEER_UPDATE_SOURCE, ifname); | |
4324 | sockunion_free(member->update_source); | |
4325 | member->update_source = NULL; | |
4326 | ||
4327 | /* Send notification or reset peer depending on state. */ | |
4328 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) { | |
4329 | member->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4330 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 4331 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
4332 | } else | |
a14810f4 | 4333 | bgp_session_reset(member); |
d62a17ae | 4334 | } |
a14810f4 | 4335 | |
d62a17ae | 4336 | return 0; |
4337 | } | |
4338 | ||
4339 | int peer_update_source_addr_set(struct peer *peer, const union sockunion *su) | |
4340 | { | |
a14810f4 | 4341 | struct peer *member; |
d62a17ae | 4342 | struct listnode *node, *nnode; |
4343 | ||
a14810f4 PM |
4344 | /* Set flag and configuration on peer. */ |
4345 | peer_flag_set(peer, PEER_FLAG_UPDATE_SOURCE); | |
d62a17ae | 4346 | if (peer->update_source) { |
a14810f4 | 4347 | if (sockunion_cmp(peer->update_source, su) == 0) |
d62a17ae | 4348 | return 0; |
4349 | sockunion_free(peer->update_source); | |
d62a17ae | 4350 | } |
d62a17ae | 4351 | peer->update_source = sockunion_dup(su); |
a14810f4 | 4352 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); |
d62a17ae | 4353 | |
a14810f4 | 4354 | /* Check if handling a regular peer. */ |
d62a17ae | 4355 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 4356 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 4357 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
4358 | peer->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4359 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4360 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4361 | } else | |
4362 | bgp_session_reset(peer); | |
a14810f4 PM |
4363 | |
4364 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 4365 | return 0; |
4366 | } | |
4367 | ||
a14810f4 PM |
4368 | /* |
4369 | * Set flag and configuration on all peer-group members, unless they are | |
4370 | * explicitely overriding peer-group configuration. | |
4371 | */ | |
4372 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4373 | /* Skip peers with overridden configuration. */ | |
4374 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_UPDATE_SOURCE)) | |
4375 | continue; | |
d62a17ae | 4376 | |
a14810f4 PM |
4377 | /* Skip peers with the same configuration. */ |
4378 | if (member->update_source) { | |
4379 | if (sockunion_cmp(member->update_source, su) == 0) | |
4380 | continue; | |
4381 | sockunion_free(member->update_source); | |
d62a17ae | 4382 | } |
4383 | ||
a14810f4 PM |
4384 | /* Set flag and configuration on peer-group member. */ |
4385 | SET_FLAG(member->flags, PEER_FLAG_UPDATE_SOURCE); | |
4386 | member->update_source = sockunion_dup(su); | |
4387 | XFREE(MTYPE_PEER_UPDATE_SOURCE, member->update_if); | |
4388 | ||
4389 | /* Send notification or reset peer depending on state. */ | |
4390 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) { | |
4391 | member->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4392 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 4393 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
4394 | } else | |
a14810f4 | 4395 | bgp_session_reset(member); |
d62a17ae | 4396 | } |
a14810f4 | 4397 | |
d62a17ae | 4398 | return 0; |
4399 | } | |
4400 | ||
4401 | int peer_update_source_unset(struct peer *peer) | |
4402 | { | |
a14810f4 | 4403 | struct peer *member; |
d62a17ae | 4404 | struct listnode *node, *nnode; |
4405 | ||
a14810f4 | 4406 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_UPDATE_SOURCE)) |
d62a17ae | 4407 | return 0; |
4408 | ||
a14810f4 PM |
4409 | /* Inherit configuration from peer-group if peer is member. */ |
4410 | if (peer_group_active(peer)) { | |
4411 | peer_flag_inherit(peer, PEER_FLAG_UPDATE_SOURCE); | |
4412 | PEER_SU_ATTR_INHERIT(peer, peer->group, update_source); | |
4413 | PEER_STR_ATTR_INHERIT(peer, peer->group, update_if, | |
4414 | MTYPE_PEER_UPDATE_SOURCE); | |
4415 | } else { | |
4416 | /* Otherwise remove flag and configuration from peer. */ | |
4417 | peer_flag_unset(peer, PEER_FLAG_UPDATE_SOURCE); | |
d62a17ae | 4418 | sockunion_free(peer->update_source); |
4419 | peer->update_source = NULL; | |
d62a17ae | 4420 | XFREE(MTYPE_PEER_UPDATE_SOURCE, peer->update_if); |
d62a17ae | 4421 | } |
4422 | ||
a14810f4 | 4423 | /* Check if handling a regular peer. */ |
d62a17ae | 4424 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 4425 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 4426 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
4427 | peer->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4428 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
4429 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
4430 | } else | |
4431 | bgp_session_reset(peer); | |
a14810f4 PM |
4432 | |
4433 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 4434 | return 0; |
4435 | } | |
4436 | ||
a14810f4 PM |
4437 | /* |
4438 | * Set flag and configuration on all peer-group members, unless they are | |
4439 | * explicitely overriding peer-group configuration. | |
4440 | */ | |
4441 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4442 | /* Skip peers with overridden configuration. */ | |
4443 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_UPDATE_SOURCE)) | |
d62a17ae | 4444 | continue; |
4445 | ||
a14810f4 PM |
4446 | /* Skip peers with the same configuration. */ |
4447 | if (!CHECK_FLAG(member->flags, PEER_FLAG_UPDATE_SOURCE) | |
4448 | && !member->update_source && !member->update_if) | |
4449 | continue; | |
d62a17ae | 4450 | |
a14810f4 PM |
4451 | /* Remove flag and configuration on peer-group member. */ |
4452 | UNSET_FLAG(member->flags, PEER_FLAG_UPDATE_SOURCE); | |
4453 | sockunion_free(member->update_source); | |
4454 | member->update_source = NULL; | |
4455 | XFREE(MTYPE_PEER_UPDATE_SOURCE, member->update_if); | |
4456 | ||
4457 | /* Send notification or reset peer depending on state. */ | |
4458 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) { | |
4459 | member->last_reset = PEER_DOWN_UPDATE_SOURCE_CHANGE; | |
4460 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 4461 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
4462 | } else | |
a14810f4 | 4463 | bgp_session_reset(member); |
d62a17ae | 4464 | } |
a14810f4 | 4465 | |
d62a17ae | 4466 | return 0; |
4467 | } | |
4468 | ||
4469 | int peer_default_originate_set(struct peer *peer, afi_t afi, safi_t safi, | |
4470 | const char *rmap) | |
4471 | { | |
598ce6bd | 4472 | struct peer *member; |
d62a17ae | 4473 | struct listnode *node, *nnode; |
4474 | ||
598ce6bd PM |
4475 | /* Set flag and configuration on peer. */ |
4476 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_DEFAULT_ORIGINATE); | |
4477 | if (rmap) { | |
4478 | if (!peer->default_rmap[afi][safi].name | |
4479 | || strcmp(rmap, peer->default_rmap[afi][safi].name) != 0) { | |
d62a17ae | 4480 | if (peer->default_rmap[afi][safi].name) |
4481 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
4482 | peer->default_rmap[afi][safi].name); | |
598ce6bd | 4483 | |
d62a17ae | 4484 | peer->default_rmap[afi][safi].name = |
4485 | XSTRDUP(MTYPE_ROUTE_MAP_NAME, rmap); | |
4486 | peer->default_rmap[afi][safi].map = | |
4487 | route_map_lookup_by_name(rmap); | |
4488 | } | |
598ce6bd PM |
4489 | } else if (!rmap) { |
4490 | if (peer->default_rmap[afi][safi].name) | |
4491 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
4492 | peer->default_rmap[afi][safi].name); | |
4493 | ||
4494 | peer->default_rmap[afi][safi].name = NULL; | |
4495 | peer->default_rmap[afi][safi].map = NULL; | |
d62a17ae | 4496 | } |
4497 | ||
598ce6bd | 4498 | /* Check if handling a regular peer. */ |
d62a17ae | 4499 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
598ce6bd | 4500 | /* Update peer route announcements. */ |
d62a17ae | 4501 | if (peer->status == Established && peer->afc_nego[afi][safi]) { |
4502 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
4503 | bgp_default_originate(peer, afi, safi, 0); | |
4504 | bgp_announce_route(peer, afi, safi); | |
4505 | } | |
598ce6bd PM |
4506 | |
4507 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 4508 | return 0; |
4509 | } | |
4510 | ||
598ce6bd PM |
4511 | /* |
4512 | * Set flag and configuration on all peer-group members, unless they are | |
4513 | * explicitely overriding peer-group configuration. | |
4514 | */ | |
4515 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4516 | /* Skip peers with overridden configuration. */ | |
4517 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
4518 | PEER_FLAG_DEFAULT_ORIGINATE)) | |
4519 | continue; | |
d62a17ae | 4520 | |
598ce6bd PM |
4521 | /* Set flag and configuration on peer-group member. */ |
4522 | SET_FLAG(member->af_flags[afi][safi], | |
4523 | PEER_FLAG_DEFAULT_ORIGINATE); | |
d62a17ae | 4524 | if (rmap) { |
598ce6bd | 4525 | if (member->default_rmap[afi][safi].name) |
d62a17ae | 4526 | XFREE(MTYPE_ROUTE_MAP_NAME, |
598ce6bd PM |
4527 | member->default_rmap[afi][safi].name); |
4528 | ||
4529 | member->default_rmap[afi][safi].name = | |
d62a17ae | 4530 | XSTRDUP(MTYPE_ROUTE_MAP_NAME, rmap); |
598ce6bd | 4531 | member->default_rmap[afi][safi].map = |
d62a17ae | 4532 | route_map_lookup_by_name(rmap); |
4533 | } | |
4534 | ||
598ce6bd PM |
4535 | /* Update peer route announcements. */ |
4536 | if (member->status == Established | |
4537 | && member->afc_nego[afi][safi]) { | |
4538 | update_group_adjust_peer( | |
4539 | peer_af_find(member, afi, safi)); | |
4540 | bgp_default_originate(member, afi, safi, 0); | |
4541 | bgp_announce_route(member, afi, safi); | |
d62a17ae | 4542 | } |
4543 | } | |
598ce6bd | 4544 | |
d62a17ae | 4545 | return 0; |
4546 | } | |
4547 | ||
4548 | int peer_default_originate_unset(struct peer *peer, afi_t afi, safi_t safi) | |
4549 | { | |
598ce6bd | 4550 | struct peer *member; |
d62a17ae | 4551 | struct listnode *node, *nnode; |
4552 | ||
598ce6bd PM |
4553 | /* Inherit configuration from peer-group if peer is member. */ |
4554 | if (peer_group_active(peer)) { | |
4555 | peer_af_flag_inherit(peer, afi, safi, | |
4556 | PEER_FLAG_DEFAULT_ORIGINATE); | |
e7103a96 PM |
4557 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
4558 | default_rmap[afi][safi].name, | |
4559 | MTYPE_ROUTE_MAP_NAME); | |
4560 | PEER_ATTR_INHERIT(peer, peer->group, | |
4561 | default_rmap[afi][safi].map); | |
598ce6bd PM |
4562 | } else { |
4563 | /* Otherwise remove flag and configuration from peer. */ | |
4564 | peer_af_flag_unset(peer, afi, safi, | |
4565 | PEER_FLAG_DEFAULT_ORIGINATE); | |
d62a17ae | 4566 | if (peer->default_rmap[afi][safi].name) |
4567 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
4568 | peer->default_rmap[afi][safi].name); | |
4569 | peer->default_rmap[afi][safi].name = NULL; | |
4570 | peer->default_rmap[afi][safi].map = NULL; | |
4571 | } | |
4572 | ||
598ce6bd | 4573 | /* Check if handling a regular peer. */ |
d62a17ae | 4574 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
598ce6bd | 4575 | /* Update peer route announcements. */ |
d62a17ae | 4576 | if (peer->status == Established && peer->afc_nego[afi][safi]) { |
4577 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
4578 | bgp_default_originate(peer, afi, safi, 1); | |
4579 | bgp_announce_route(peer, afi, safi); | |
4580 | } | |
598ce6bd PM |
4581 | |
4582 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 4583 | return 0; |
4584 | } | |
4585 | ||
598ce6bd PM |
4586 | /* |
4587 | * Remove flag and configuration from all peer-group members, unless | |
4588 | * they are explicitely overriding peer-group configuration. | |
4589 | */ | |
4590 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4591 | /* Skip peers with overridden configuration. */ | |
4592 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
4593 | PEER_FLAG_DEFAULT_ORIGINATE)) | |
4594 | continue; | |
4595 | ||
4596 | /* Remove flag and configuration on peer-group member. */ | |
d62a17ae | 4597 | UNSET_FLAG(peer->af_flags[afi][safi], |
4598 | PEER_FLAG_DEFAULT_ORIGINATE); | |
d62a17ae | 4599 | if (peer->default_rmap[afi][safi].name) |
4600 | XFREE(MTYPE_ROUTE_MAP_NAME, | |
4601 | peer->default_rmap[afi][safi].name); | |
4602 | peer->default_rmap[afi][safi].name = NULL; | |
4603 | peer->default_rmap[afi][safi].map = NULL; | |
4604 | ||
598ce6bd | 4605 | /* Update peer route announcements. */ |
d62a17ae | 4606 | if (peer->status == Established && peer->afc_nego[afi][safi]) { |
4607 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
4608 | bgp_default_originate(peer, afi, safi, 1); | |
4609 | bgp_announce_route(peer, afi, safi); | |
4610 | } | |
4611 | } | |
598ce6bd | 4612 | |
d62a17ae | 4613 | return 0; |
4614 | } | |
4615 | ||
d7c0a89a | 4616 | int peer_port_set(struct peer *peer, uint16_t port) |
d62a17ae | 4617 | { |
4618 | peer->port = port; | |
4619 | return 0; | |
4620 | } | |
4621 | ||
4622 | int peer_port_unset(struct peer *peer) | |
4623 | { | |
4624 | peer->port = BGP_PORT_DEFAULT; | |
4625 | return 0; | |
4626 | } | |
4627 | ||
4628 | /* | |
4629 | * Helper function that is called after the name of the policy | |
4630 | * being used by a peer has changed (AF specific). Automatically | |
4631 | * initiates inbound or outbound processing as needed. | |
4632 | */ | |
4633 | static void peer_on_policy_change(struct peer *peer, afi_t afi, safi_t safi, | |
4634 | int outbound) | |
4635 | { | |
4636 | if (outbound) { | |
4637 | update_group_adjust_peer(peer_af_find(peer, afi, safi)); | |
4638 | if (peer->status == Established) | |
4639 | bgp_announce_route(peer, afi, safi); | |
4640 | } else { | |
4641 | if (peer->status != Established) | |
4642 | return; | |
4643 | ||
4644 | if (CHECK_FLAG(peer->af_flags[afi][safi], | |
4645 | PEER_FLAG_SOFT_RECONFIG)) | |
4646 | bgp_soft_reconfig_in(peer, afi, safi); | |
4647 | else if (CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_OLD_RCV) | |
4648 | || CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_NEW_RCV)) | |
4649 | bgp_route_refresh_send(peer, afi, safi, 0, 0, 0); | |
4650 | } | |
4651 | } | |
4652 | ||
4653 | ||
4654 | /* neighbor weight. */ | |
d7c0a89a | 4655 | int peer_weight_set(struct peer *peer, afi_t afi, safi_t safi, uint16_t weight) |
d62a17ae | 4656 | { |
598ce6bd | 4657 | struct peer *member; |
d62a17ae | 4658 | struct listnode *node, *nnode; |
4659 | ||
598ce6bd PM |
4660 | /* Set flag and configuration on peer. */ |
4661 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_WEIGHT); | |
d62a17ae | 4662 | if (peer->weight[afi][safi] != weight) { |
4663 | peer->weight[afi][safi] = weight; | |
d62a17ae | 4664 | peer_on_policy_change(peer, afi, safi, 0); |
4665 | } | |
4666 | ||
598ce6bd | 4667 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 4668 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) |
4669 | return 0; | |
4670 | ||
598ce6bd PM |
4671 | /* |
4672 | * Set flag and configuration on all peer-group members, unless they are | |
4673 | * explicitely overriding peer-group configuration. | |
4674 | */ | |
4675 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4676 | /* Skip peers with overridden configuration. */ | |
4677 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
4678 | PEER_FLAG_WEIGHT)) | |
4679 | continue; | |
4680 | ||
4681 | /* Set flag and configuration on peer-group member. */ | |
4682 | SET_FLAG(member->af_flags[afi][safi], PEER_FLAG_WEIGHT); | |
4683 | if (member->weight[afi][safi] != weight) { | |
4684 | member->weight[afi][safi] = weight; | |
4685 | peer_on_policy_change(member, afi, safi, 0); | |
d62a17ae | 4686 | } |
4687 | } | |
598ce6bd | 4688 | |
d62a17ae | 4689 | return 0; |
4690 | } | |
4691 | ||
4692 | int peer_weight_unset(struct peer *peer, afi_t afi, safi_t safi) | |
4693 | { | |
598ce6bd | 4694 | struct peer *member; |
d62a17ae | 4695 | struct listnode *node, *nnode; |
4696 | ||
598ce6bd PM |
4697 | if (!CHECK_FLAG(peer->af_flags[afi][safi], PEER_FLAG_WEIGHT)) |
4698 | return 0; | |
4699 | ||
4700 | /* Inherit configuration from peer-group if peer is member. */ | |
d62a17ae | 4701 | if (peer_group_active(peer)) { |
598ce6bd | 4702 | peer_af_flag_inherit(peer, afi, safi, PEER_FLAG_WEIGHT); |
e7103a96 | 4703 | PEER_ATTR_INHERIT(peer, peer->group, weight[afi][safi]); |
d62a17ae | 4704 | |
598ce6bd PM |
4705 | peer_on_policy_change(peer, afi, safi, 0); |
4706 | return 0; | |
d62a17ae | 4707 | } |
4708 | ||
598ce6bd PM |
4709 | /* Remove flag and configuration from peer. */ |
4710 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_WEIGHT); | |
4711 | peer->weight[afi][safi] = 0; | |
4712 | peer_on_policy_change(peer, afi, safi, 0); | |
d62a17ae | 4713 | |
598ce6bd PM |
4714 | /* Skip peer-group mechanics for regular peers. */ |
4715 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
4716 | return 0; | |
d62a17ae | 4717 | |
598ce6bd PM |
4718 | /* |
4719 | * Remove flag and configuration from all peer-group members, unless | |
4720 | * they are explicitely overriding peer-group configuration. | |
4721 | */ | |
4722 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4723 | /* Skip peers with overridden configuration. */ | |
4724 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
4725 | PEER_FLAG_WEIGHT)) | |
4726 | continue; | |
4727 | ||
4728 | /* Skip peers where flag is already disabled. */ | |
4729 | if (!CHECK_FLAG(member->af_flags[afi][safi], PEER_FLAG_WEIGHT)) | |
4730 | continue; | |
4731 | ||
4732 | /* Remove flag and configuration on peer-group member. */ | |
4733 | UNSET_FLAG(member->af_flags[afi][safi], PEER_FLAG_WEIGHT); | |
4734 | member->weight[afi][safi] = 0; | |
4735 | peer_on_policy_change(member, afi, safi, 0); | |
d62a17ae | 4736 | } |
598ce6bd | 4737 | |
d62a17ae | 4738 | return 0; |
4739 | } | |
4740 | ||
d7c0a89a | 4741 | int peer_timers_set(struct peer *peer, uint32_t keepalive, uint32_t holdtime) |
d62a17ae | 4742 | { |
b90a8e13 | 4743 | struct peer *member; |
d62a17ae | 4744 | struct listnode *node, *nnode; |
4745 | ||
d62a17ae | 4746 | if (keepalive > 65535) |
4747 | return BGP_ERR_INVALID_VALUE; | |
4748 | ||
d62a17ae | 4749 | if (holdtime > 65535) |
4750 | return BGP_ERR_INVALID_VALUE; | |
4751 | ||
d62a17ae | 4752 | if (holdtime < 3 && holdtime != 0) |
4753 | return BGP_ERR_INVALID_VALUE; | |
4754 | ||
b90a8e13 PM |
4755 | /* Set flag and configuration on peer. */ |
4756 | peer_flag_set(peer, PEER_FLAG_TIMER); | |
d62a17ae | 4757 | peer->holdtime = holdtime; |
4758 | peer->keepalive = (keepalive < holdtime / 3 ? keepalive : holdtime / 3); | |
4759 | ||
b90a8e13 PM |
4760 | /* Skip peer-group mechanics for regular peers. */ |
4761 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
4762 | return 0; | |
d25e4efc | 4763 | |
b90a8e13 PM |
4764 | /* |
4765 | * Set flag and configuration on all peer-group members, unless they are | |
4766 | * explicitely overriding peer-group configuration. | |
4767 | */ | |
4768 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4769 | /* Skip peers with overridden configuration. */ | |
4770 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_TIMER)) | |
4771 | continue; | |
d25e4efc | 4772 | |
b90a8e13 PM |
4773 | /* Set flag and configuration on peer-group member. */ |
4774 | SET_FLAG(member->flags, PEER_FLAG_TIMER); | |
4775 | PEER_ATTR_INHERIT(peer, peer->group, holdtime); | |
4776 | PEER_ATTR_INHERIT(peer, peer->group, keepalive); | |
d62a17ae | 4777 | } |
d25e4efc | 4778 | |
d62a17ae | 4779 | return 0; |
4780 | } | |
4781 | ||
4782 | int peer_timers_unset(struct peer *peer) | |
4783 | { | |
b90a8e13 | 4784 | struct peer *member; |
d62a17ae | 4785 | struct listnode *node, *nnode; |
4786 | ||
b90a8e13 PM |
4787 | /* Inherit configuration from peer-group if peer is member. */ |
4788 | if (peer_group_active(peer)) { | |
4789 | peer_flag_inherit(peer, PEER_FLAG_TIMER); | |
4790 | PEER_ATTR_INHERIT(peer, peer->group, holdtime); | |
4791 | PEER_ATTR_INHERIT(peer, peer->group, keepalive); | |
4792 | } else { | |
4793 | /* Otherwise remove flag and configuration from peer. */ | |
4794 | peer_flag_unset(peer, PEER_FLAG_TIMER); | |
d25e4efc | 4795 | peer->holdtime = 0; |
b90a8e13 PM |
4796 | peer->keepalive = 0; |
4797 | } | |
d25e4efc | 4798 | |
b90a8e13 PM |
4799 | /* Skip peer-group mechanics for regular peers. */ |
4800 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
4801 | return 0; | |
4802 | ||
4803 | /* | |
4804 | * Remove flag and configuration from all peer-group members, unless | |
4805 | * they are explicitely overriding peer-group configuration. | |
4806 | */ | |
4807 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4808 | /* Skip peers with overridden configuration. */ | |
4809 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_TIMER)) | |
4810 | continue; | |
d25e4efc | 4811 | |
b90a8e13 PM |
4812 | /* Remove flag and configuration on peer-group member. */ |
4813 | UNSET_FLAG(member->flags, PEER_FLAG_TIMER); | |
4814 | member->holdtime = 0; | |
4815 | member->keepalive = 0; | |
d62a17ae | 4816 | } |
4817 | ||
4818 | return 0; | |
4819 | } | |
4820 | ||
d7c0a89a | 4821 | int peer_timers_connect_set(struct peer *peer, uint32_t connect) |
d62a17ae | 4822 | { |
b90a8e13 | 4823 | struct peer *member; |
d62a17ae | 4824 | struct listnode *node, *nnode; |
4825 | ||
4826 | if (connect > 65535) | |
4827 | return BGP_ERR_INVALID_VALUE; | |
4828 | ||
b90a8e13 PM |
4829 | /* Set flag and configuration on peer. */ |
4830 | peer_flag_set(peer, PEER_FLAG_TIMER_CONNECT); | |
d62a17ae | 4831 | peer->connect = connect; |
d62a17ae | 4832 | peer->v_connect = connect; |
4833 | ||
b90a8e13 | 4834 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 4835 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) |
4836 | return 0; | |
4837 | ||
b90a8e13 PM |
4838 | /* |
4839 | * Set flag and configuration on all peer-group members, unless they are | |
4840 | * explicitely overriding peer-group configuration. | |
4841 | */ | |
4842 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4843 | /* Skip peers with overridden configuration. */ | |
4844 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_TIMER_CONNECT)) | |
4845 | continue; | |
4846 | ||
4847 | /* Set flag and configuration on peer-group member. */ | |
4848 | SET_FLAG(member->flags, PEER_FLAG_TIMER_CONNECT); | |
4849 | member->connect = connect; | |
4850 | member->v_connect = connect; | |
d62a17ae | 4851 | } |
b90a8e13 | 4852 | |
d62a17ae | 4853 | return 0; |
4854 | } | |
4855 | ||
4856 | int peer_timers_connect_unset(struct peer *peer) | |
4857 | { | |
b90a8e13 | 4858 | struct peer *member; |
d62a17ae | 4859 | struct listnode *node, *nnode; |
4860 | ||
b90a8e13 PM |
4861 | /* Inherit configuration from peer-group if peer is member. */ |
4862 | if (peer_group_active(peer)) { | |
4863 | peer_flag_inherit(peer, PEER_FLAG_TIMER_CONNECT); | |
4864 | PEER_ATTR_INHERIT(peer, peer->group, connect); | |
4865 | } else { | |
4866 | /* Otherwise remove flag and configuration from peer. */ | |
4867 | peer_flag_unset(peer, PEER_FLAG_TIMER_CONNECT); | |
4868 | peer->connect = 0; | |
4869 | } | |
d62a17ae | 4870 | |
b90a8e13 PM |
4871 | /* Set timer with fallback to default value. */ |
4872 | if (peer->connect) | |
4873 | peer->v_connect = peer->connect; | |
4874 | else | |
4875 | peer->v_connect = BGP_DEFAULT_CONNECT_RETRY; | |
d62a17ae | 4876 | |
b90a8e13 | 4877 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 4878 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) |
4879 | return 0; | |
4880 | ||
b90a8e13 PM |
4881 | /* |
4882 | * Remove flag and configuration from all peer-group members, unless | |
4883 | * they are explicitely overriding peer-group configuration. | |
4884 | */ | |
4885 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4886 | /* Skip peers with overridden configuration. */ | |
4887 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_TIMER_CONNECT)) | |
4888 | continue; | |
4889 | ||
4890 | /* Remove flag and configuration on peer-group member. */ | |
4891 | UNSET_FLAG(member->flags, PEER_FLAG_TIMER_CONNECT); | |
4892 | member->connect = 0; | |
4893 | member->v_connect = BGP_DEFAULT_CONNECT_RETRY; | |
d62a17ae | 4894 | } |
b90a8e13 | 4895 | |
d62a17ae | 4896 | return 0; |
4897 | } | |
4898 | ||
d7c0a89a | 4899 | int peer_advertise_interval_set(struct peer *peer, uint32_t routeadv) |
d62a17ae | 4900 | { |
b90a8e13 | 4901 | struct peer *member; |
d62a17ae | 4902 | struct listnode *node, *nnode; |
4903 | ||
4904 | if (routeadv > 600) | |
4905 | return BGP_ERR_INVALID_VALUE; | |
4906 | ||
b90a8e13 PM |
4907 | /* Set flag and configuration on peer. */ |
4908 | peer_flag_set(peer, PEER_FLAG_ROUTEADV); | |
d62a17ae | 4909 | peer->routeadv = routeadv; |
4910 | peer->v_routeadv = routeadv; | |
4911 | ||
b90a8e13 | 4912 | /* Check if handling a regular peer. */ |
d62a17ae | 4913 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
b90a8e13 | 4914 | /* Update peer route announcements. */ |
d62a17ae | 4915 | update_group_adjust_peer_afs(peer); |
4916 | if (peer->status == Established) | |
4917 | bgp_announce_route_all(peer); | |
b90a8e13 PM |
4918 | |
4919 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 4920 | return 0; |
4921 | } | |
4922 | ||
b90a8e13 PM |
4923 | /* |
4924 | * Set flag and configuration on all peer-group members, unless they are | |
4925 | * explicitely overriding peer-group configuration. | |
4926 | */ | |
4927 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4928 | /* Skip peers with overridden configuration. */ | |
4929 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_ROUTEADV)) | |
4930 | continue; | |
4931 | ||
4932 | /* Set flag and configuration on peer-group member. */ | |
4933 | SET_FLAG(member->flags, PEER_FLAG_ROUTEADV); | |
4934 | member->routeadv = routeadv; | |
4935 | member->v_routeadv = routeadv; | |
4936 | ||
4937 | /* Update peer route announcements. */ | |
4938 | update_group_adjust_peer_afs(member); | |
4939 | if (member->status == Established) | |
4940 | bgp_announce_route_all(member); | |
d62a17ae | 4941 | } |
4942 | ||
4943 | return 0; | |
4944 | } | |
4945 | ||
4946 | int peer_advertise_interval_unset(struct peer *peer) | |
4947 | { | |
b90a8e13 | 4948 | struct peer *member; |
d62a17ae | 4949 | struct listnode *node, *nnode; |
4950 | ||
b90a8e13 PM |
4951 | /* Inherit configuration from peer-group if peer is member. */ |
4952 | if (peer_group_active(peer)) { | |
4953 | peer_flag_inherit(peer, PEER_FLAG_ROUTEADV); | |
4954 | PEER_ATTR_INHERIT(peer, peer->group, routeadv); | |
4955 | } else { | |
4956 | /* Otherwise remove flag and configuration from peer. */ | |
4957 | peer_flag_unset(peer, PEER_FLAG_ROUTEADV); | |
4958 | peer->routeadv = 0; | |
4959 | } | |
d62a17ae | 4960 | |
b90a8e13 PM |
4961 | /* Set timer with fallback to default value. */ |
4962 | if (peer->routeadv) | |
4963 | peer->v_routeadv = peer->routeadv; | |
d62a17ae | 4964 | else |
b90a8e13 PM |
4965 | peer->v_routeadv = (peer->sort == BGP_PEER_IBGP) |
4966 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
4967 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 4968 | |
b90a8e13 | 4969 | /* Check if handling a regular peer. */ |
d62a17ae | 4970 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
b90a8e13 | 4971 | /* Update peer route announcements. */ |
d62a17ae | 4972 | update_group_adjust_peer_afs(peer); |
4973 | if (peer->status == Established) | |
4974 | bgp_announce_route_all(peer); | |
b90a8e13 PM |
4975 | |
4976 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 4977 | return 0; |
4978 | } | |
4979 | ||
b90a8e13 PM |
4980 | /* |
4981 | * Remove flag and configuration from all peer-group members, unless | |
4982 | * they are explicitely overriding peer-group configuration. | |
4983 | */ | |
4984 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
4985 | /* Skip peers with overridden configuration. */ | |
4986 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_ROUTEADV)) | |
4987 | continue; | |
d62a17ae | 4988 | |
b90a8e13 PM |
4989 | /* Remove flag and configuration on peer-group member. */ |
4990 | UNSET_FLAG(member->flags, PEER_FLAG_ROUTEADV); | |
4991 | member->routeadv = 0; | |
4992 | member->v_routeadv = (member->sort == BGP_PEER_IBGP) | |
4993 | ? BGP_DEFAULT_IBGP_ROUTEADV | |
4994 | : BGP_DEFAULT_EBGP_ROUTEADV; | |
d62a17ae | 4995 | |
b90a8e13 PM |
4996 | /* Update peer route announcements. */ |
4997 | update_group_adjust_peer_afs(member); | |
4998 | if (member->status == Established) | |
4999 | bgp_announce_route_all(member); | |
d62a17ae | 5000 | } |
5001 | ||
5002 | return 0; | |
5003 | } | |
5004 | ||
5005 | /* neighbor interface */ | |
5006 | void peer_interface_set(struct peer *peer, const char *str) | |
5007 | { | |
5008 | if (peer->ifname) | |
5009 | XFREE(MTYPE_BGP_PEER_IFNAME, peer->ifname); | |
5010 | peer->ifname = XSTRDUP(MTYPE_BGP_PEER_IFNAME, str); | |
5011 | } | |
5012 | ||
5013 | void peer_interface_unset(struct peer *peer) | |
5014 | { | |
5015 | if (peer->ifname) | |
5016 | XFREE(MTYPE_BGP_PEER_IFNAME, peer->ifname); | |
5017 | peer->ifname = NULL; | |
5018 | } | |
5019 | ||
5020 | /* Allow-as in. */ | |
5021 | int peer_allowas_in_set(struct peer *peer, afi_t afi, safi_t safi, | |
5022 | int allow_num, int origin) | |
5023 | { | |
598ce6bd | 5024 | struct peer *member; |
d62a17ae | 5025 | struct listnode *node, *nnode; |
5026 | ||
598ce6bd PM |
5027 | if (!origin && (allow_num < 1 || allow_num > 10)) |
5028 | return BGP_ERR_INVALID_VALUE; | |
5029 | ||
5030 | /* Set flag and configuration on peer. */ | |
5031 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_ALLOWAS_IN); | |
d62a17ae | 5032 | if (origin) { |
598ce6bd | 5033 | if (peer->allowas_in[afi][safi] != 0 |
d62a17ae | 5034 | || !CHECK_FLAG(peer->af_flags[afi][safi], |
5035 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { | |
d62a17ae | 5036 | peer_af_flag_set(peer, afi, safi, |
5037 | PEER_FLAG_ALLOWAS_IN_ORIGIN); | |
598ce6bd | 5038 | peer->allowas_in[afi][safi] = 0; |
d62a17ae | 5039 | peer_on_policy_change(peer, afi, safi, 0); |
5040 | } | |
d62a17ae | 5041 | } else { |
d62a17ae | 5042 | if (peer->allowas_in[afi][safi] != allow_num |
5043 | || CHECK_FLAG(peer->af_flags[afi][safi], | |
5044 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { | |
598ce6bd | 5045 | |
d62a17ae | 5046 | peer_af_flag_unset(peer, afi, safi, |
5047 | PEER_FLAG_ALLOWAS_IN_ORIGIN); | |
598ce6bd | 5048 | peer->allowas_in[afi][safi] = allow_num; |
d62a17ae | 5049 | peer_on_policy_change(peer, afi, safi, 0); |
5050 | } | |
598ce6bd | 5051 | } |
d62a17ae | 5052 | |
598ce6bd PM |
5053 | /* Skip peer-group mechanics for regular peers. */ |
5054 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
5055 | return 0; | |
d62a17ae | 5056 | |
598ce6bd PM |
5057 | /* |
5058 | * Set flag and configuration on all peer-group members, unless | |
5059 | * they are explicitely overriding peer-group configuration. | |
5060 | */ | |
5061 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5062 | /* Skip peers with overridden configuration. */ | |
5063 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
246bb5f0 | 5064 | PEER_FLAG_ALLOWAS_IN)) |
598ce6bd PM |
5065 | continue; |
5066 | ||
5067 | /* Set flag and configuration on peer-group member. */ | |
5068 | SET_FLAG(member->af_flags[afi][safi], PEER_FLAG_ALLOWAS_IN); | |
5069 | if (origin) { | |
5070 | if (member->allowas_in[afi][safi] != 0 | |
5071 | || !CHECK_FLAG(member->af_flags[afi][safi], | |
cf9ac8bf | 5072 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { |
598ce6bd | 5073 | SET_FLAG(member->af_flags[afi][safi], |
cf9ac8bf | 5074 | PEER_FLAG_ALLOWAS_IN_ORIGIN); |
598ce6bd PM |
5075 | member->allowas_in[afi][safi] = 0; |
5076 | peer_on_policy_change(peer, afi, safi, 0); | |
5077 | } | |
5078 | } else { | |
5079 | if (member->allowas_in[afi][safi] != allow_num | |
5080 | || CHECK_FLAG(member->af_flags[afi][safi], | |
d62a17ae | 5081 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { |
598ce6bd PM |
5082 | UNSET_FLAG(member->af_flags[afi][safi], |
5083 | PEER_FLAG_ALLOWAS_IN_ORIGIN); | |
5084 | member->allowas_in[afi][safi] = allow_num; | |
d62a17ae | 5085 | peer_on_policy_change(peer, afi, safi, 0); |
5086 | } | |
5087 | } | |
5088 | } | |
5089 | ||
5090 | return 0; | |
5091 | } | |
5092 | ||
5093 | int peer_allowas_in_unset(struct peer *peer, afi_t afi, safi_t safi) | |
5094 | { | |
598ce6bd | 5095 | struct peer *member; |
d62a17ae | 5096 | struct listnode *node, *nnode; |
5097 | ||
598ce6bd PM |
5098 | /* Skip peer if flag is already disabled. */ |
5099 | if (!CHECK_FLAG(peer->af_flags[afi][safi], PEER_FLAG_ALLOWAS_IN)) | |
5100 | return 0; | |
d62a17ae | 5101 | |
598ce6bd PM |
5102 | /* Inherit configuration from peer-group if peer is member. */ |
5103 | if (peer_group_active(peer)) { | |
5104 | peer_af_flag_inherit(peer, afi, safi, PEER_FLAG_ALLOWAS_IN); | |
5105 | peer_af_flag_inherit(peer, afi, safi, | |
cf9ac8bf | 5106 | PEER_FLAG_ALLOWAS_IN_ORIGIN); |
e7103a96 | 5107 | PEER_ATTR_INHERIT(peer, peer->group, allowas_in[afi][safi]); |
d62a17ae | 5108 | peer_on_policy_change(peer, afi, safi, 0); |
598ce6bd PM |
5109 | |
5110 | return 0; | |
5111 | } | |
5112 | ||
5113 | /* Remove flag and configuration from peer. */ | |
5114 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_ALLOWAS_IN); | |
5115 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_ALLOWAS_IN_ORIGIN); | |
5116 | peer->allowas_in[afi][safi] = 0; | |
5117 | peer_on_policy_change(peer, afi, safi, 0); | |
5118 | ||
5119 | /* Skip peer-group mechanics if handling a regular peer. */ | |
5120 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
5121 | return 0; | |
5122 | ||
5123 | /* | |
5124 | * Remove flags and configuration from all peer-group members, unless | |
5125 | * they are explicitely overriding peer-group configuration. | |
5126 | */ | |
5127 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5128 | /* Skip peers with overridden configuration. */ | |
5129 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
cf9ac8bf | 5130 | PEER_FLAG_ALLOWAS_IN)) |
598ce6bd PM |
5131 | continue; |
5132 | ||
5133 | /* Skip peers where flag is already disabled. */ | |
5134 | if (!CHECK_FLAG(member->af_flags[afi][safi], | |
cf9ac8bf | 5135 | PEER_FLAG_ALLOWAS_IN)) |
598ce6bd PM |
5136 | continue; |
5137 | ||
5138 | /* Remove flags and configuration on peer-group member. */ | |
cf9ac8bf | 5139 | UNSET_FLAG(member->af_flags[afi][safi], PEER_FLAG_ALLOWAS_IN); |
598ce6bd | 5140 | UNSET_FLAG(member->af_flags[afi][safi], |
cf9ac8bf | 5141 | PEER_FLAG_ALLOWAS_IN_ORIGIN); |
598ce6bd PM |
5142 | member->allowas_in[afi][safi] = 0; |
5143 | peer_on_policy_change(member, afi, safi, 0); | |
d62a17ae | 5144 | } |
5145 | ||
5146 | return 0; | |
5147 | } | |
5148 | ||
5149 | int peer_local_as_set(struct peer *peer, as_t as, int no_prepend, | |
5150 | int replace_as) | |
5151 | { | |
a14810f4 | 5152 | bool old_no_prepend, old_replace_as; |
d62a17ae | 5153 | struct bgp *bgp = peer->bgp; |
a14810f4 | 5154 | struct peer *member; |
d62a17ae | 5155 | struct listnode *node, *nnode; |
5156 | ||
5157 | if (peer_sort(peer) != BGP_PEER_EBGP | |
5158 | && peer_sort(peer) != BGP_PEER_INTERNAL) | |
5159 | return BGP_ERR_LOCAL_AS_ALLOWED_ONLY_FOR_EBGP; | |
5160 | ||
5161 | if (bgp->as == as) | |
5162 | return BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS; | |
5163 | ||
5164 | if (peer->as == as) | |
5165 | return BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS_REMOTE_AS; | |
5166 | ||
a14810f4 PM |
5167 | /* Save previous flag states. */ |
5168 | old_no_prepend = | |
5169 | !!CHECK_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5170 | old_replace_as = | |
5171 | !!CHECK_FLAG(peer->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
d62a17ae | 5172 | |
a14810f4 PM |
5173 | /* Set flag and configuration on peer. */ |
5174 | peer_flag_set(peer, PEER_FLAG_LOCAL_AS); | |
5175 | peer_flag_modify(peer, PEER_FLAG_LOCAL_AS_NO_PREPEND, no_prepend); | |
5176 | peer_flag_modify(peer, PEER_FLAG_LOCAL_AS_REPLACE_AS, replace_as); | |
d62a17ae | 5177 | |
a14810f4 PM |
5178 | if (peer->change_local_as == as && old_no_prepend == no_prepend |
5179 | && old_replace_as == replace_as) | |
5180 | return 0; | |
5181 | peer->change_local_as = as; | |
d62a17ae | 5182 | |
a14810f4 | 5183 | /* Check if handling a regular peer. */ |
d62a17ae | 5184 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 5185 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 5186 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
5187 | peer->last_reset = PEER_DOWN_LOCAL_AS_CHANGE; | |
5188 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5189 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5190 | } else | |
5191 | bgp_session_reset(peer); | |
a14810f4 PM |
5192 | |
5193 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5194 | return 0; |
5195 | } | |
5196 | ||
a14810f4 PM |
5197 | /* |
5198 | * Set flag and configuration on all peer-group members, unless they are | |
5199 | * explicitely overriding peer-group configuration. | |
5200 | */ | |
5201 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5202 | /* Skip peers with overridden configuration. */ | |
5203 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_LOCAL_AS)) | |
5204 | continue; | |
d62a17ae | 5205 | |
a14810f4 PM |
5206 | /* Skip peers with the same configuration. */ |
5207 | old_no_prepend = CHECK_FLAG(member->flags, | |
5208 | PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5209 | old_replace_as = CHECK_FLAG(member->flags, | |
5210 | PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
5211 | if (member->change_local_as == as | |
5212 | && CHECK_FLAG(member->flags, PEER_FLAG_LOCAL_AS) | |
5213 | && old_no_prepend == no_prepend | |
5214 | && old_replace_as == replace_as) | |
5215 | continue; | |
d62a17ae | 5216 | |
a14810f4 PM |
5217 | /* Set flag and configuration on peer-group member. */ |
5218 | SET_FLAG(member->flags, PEER_FLAG_LOCAL_AS); | |
5219 | COND_FLAG(member->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND, | |
5220 | no_prepend); | |
5221 | COND_FLAG(member->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS, | |
5222 | replace_as); | |
5223 | member->change_local_as = as; | |
5224 | ||
5225 | /* Send notification or stop peer depending on state. */ | |
5226 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) { | |
5227 | member->last_reset = PEER_DOWN_LOCAL_AS_CHANGE; | |
5228 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 5229 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
5230 | } else | |
a14810f4 | 5231 | BGP_EVENT_ADD(member, BGP_Stop); |
d62a17ae | 5232 | } |
5233 | ||
5234 | return 0; | |
5235 | } | |
5236 | ||
5237 | int peer_local_as_unset(struct peer *peer) | |
5238 | { | |
a14810f4 | 5239 | struct peer *member; |
d62a17ae | 5240 | struct listnode *node, *nnode; |
5241 | ||
a14810f4 | 5242 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_LOCAL_AS)) |
d62a17ae | 5243 | return 0; |
5244 | ||
a14810f4 PM |
5245 | /* Inherit configuration from peer-group if peer is member. */ |
5246 | if (peer_group_active(peer)) { | |
5247 | peer_flag_inherit(peer, PEER_FLAG_LOCAL_AS); | |
5248 | peer_flag_inherit(peer, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5249 | peer_flag_inherit(peer, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
5250 | PEER_ATTR_INHERIT(peer, peer->group, change_local_as); | |
5251 | } else { | |
5252 | /* Otherwise remove flag and configuration from peer. */ | |
5253 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS); | |
5254 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5255 | peer_flag_unset(peer, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
5256 | peer->change_local_as = 0; | |
5257 | } | |
d62a17ae | 5258 | |
a14810f4 | 5259 | /* Check if handling a regular peer. */ |
d62a17ae | 5260 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 5261 | /* Send notification or stop peer depending on state. */ |
d62a17ae | 5262 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) { |
5263 | peer->last_reset = PEER_DOWN_LOCAL_AS_CHANGE; | |
5264 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5265 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5266 | } else | |
5267 | BGP_EVENT_ADD(peer, BGP_Stop); | |
5268 | ||
a14810f4 | 5269 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 5270 | return 0; |
5271 | } | |
5272 | ||
a14810f4 PM |
5273 | /* |
5274 | * Remove flag and configuration from all peer-group members, unless | |
5275 | * they are explicitely overriding peer-group configuration. | |
5276 | */ | |
5277 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5278 | /* Skip peers with overridden configuration. */ | |
5279 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_LOCAL_AS)) | |
5280 | continue; | |
d62a17ae | 5281 | |
a14810f4 PM |
5282 | /* Remove flag and configuration on peer-group member. */ |
5283 | UNSET_FLAG(member->flags, PEER_FLAG_LOCAL_AS); | |
5284 | UNSET_FLAG(member->flags, PEER_FLAG_LOCAL_AS_NO_PREPEND); | |
5285 | UNSET_FLAG(member->flags, PEER_FLAG_LOCAL_AS_REPLACE_AS); | |
5286 | member->change_local_as = 0; | |
5287 | ||
5288 | /* Send notification or stop peer depending on state. */ | |
5289 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) { | |
5290 | member->last_reset = PEER_DOWN_LOCAL_AS_CHANGE; | |
5291 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 5292 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
5293 | } else | |
a14810f4 | 5294 | bgp_session_reset(member); |
d62a17ae | 5295 | } |
a14810f4 | 5296 | |
d62a17ae | 5297 | return 0; |
5298 | } | |
5299 | ||
5300 | /* Set password for authenticating with the peer. */ | |
5301 | int peer_password_set(struct peer *peer, const char *password) | |
5302 | { | |
a14810f4 PM |
5303 | struct peer *member; |
5304 | struct listnode *node, *nnode; | |
d62a17ae | 5305 | int len = password ? strlen(password) : 0; |
5306 | int ret = BGP_SUCCESS; | |
5307 | ||
5308 | if ((len < PEER_PASSWORD_MINLEN) || (len > PEER_PASSWORD_MAXLEN)) | |
5309 | return BGP_ERR_INVALID_VALUE; | |
5310 | ||
a14810f4 PM |
5311 | /* Set flag and configuration on peer. */ |
5312 | peer_flag_set(peer, PEER_FLAG_PASSWORD); | |
5313 | if (peer->password && strcmp(peer->password, password) == 0) | |
d62a17ae | 5314 | return 0; |
a14810f4 | 5315 | XFREE(MTYPE_PEER_PASSWORD, peer->password); |
d62a17ae | 5316 | peer->password = XSTRDUP(MTYPE_PEER_PASSWORD, password); |
5317 | ||
a14810f4 | 5318 | /* Check if handling a regular peer. */ |
d62a17ae | 5319 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 5320 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 5321 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
5322 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5323 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5324 | else | |
5325 | bgp_session_reset(peer); | |
5326 | ||
a14810f4 PM |
5327 | /* |
5328 | * Attempt to install password on socket and skip peer-group | |
5329 | * mechanics. | |
5330 | */ | |
d62a17ae | 5331 | if (BGP_PEER_SU_UNSPEC(peer)) |
5332 | return BGP_SUCCESS; | |
d62a17ae | 5333 | return (bgp_md5_set(peer) >= 0) ? BGP_SUCCESS |
5334 | : BGP_ERR_TCPSIG_FAILED; | |
5335 | } | |
5336 | ||
a14810f4 PM |
5337 | /* |
5338 | * Set flag and configuration on all peer-group members, unless they are | |
5339 | * explicitely overriding peer-group configuration. | |
5340 | */ | |
5341 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5342 | /* Skip peers with overridden configuration. */ | |
5343 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_PASSWORD)) | |
d62a17ae | 5344 | continue; |
5345 | ||
a14810f4 PM |
5346 | /* Skip peers with the same password. */ |
5347 | if (member->password && strcmp(member->password, password) == 0) | |
5348 | continue; | |
d62a17ae | 5349 | |
a14810f4 PM |
5350 | /* Set flag and configuration on peer-group member. */ |
5351 | SET_FLAG(member->flags, PEER_FLAG_PASSWORD); | |
5352 | if (member->password) | |
5353 | XFREE(MTYPE_PEER_PASSWORD, member->password); | |
5354 | member->password = XSTRDUP(MTYPE_PEER_PASSWORD, password); | |
5355 | ||
5356 | /* Send notification or reset peer depending on state. */ | |
5357 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) | |
5358 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 5359 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
5360 | else | |
a14810f4 | 5361 | bgp_session_reset(member); |
d62a17ae | 5362 | |
a14810f4 PM |
5363 | /* Attempt to install password on socket. */ |
5364 | if (!BGP_PEER_SU_UNSPEC(member) && bgp_md5_set(member) < 0) | |
5365 | ret = BGP_ERR_TCPSIG_FAILED; | |
d62a17ae | 5366 | } |
5367 | ||
5368 | return ret; | |
5369 | } | |
5370 | ||
5371 | int peer_password_unset(struct peer *peer) | |
5372 | { | |
a14810f4 PM |
5373 | struct peer *member; |
5374 | struct listnode *node, *nnode; | |
d62a17ae | 5375 | |
a14810f4 | 5376 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_PASSWORD)) |
d62a17ae | 5377 | return 0; |
5378 | ||
a14810f4 PM |
5379 | /* Inherit configuration from peer-group if peer is member. */ |
5380 | if (peer_group_active(peer)) { | |
5381 | peer_flag_inherit(peer, PEER_FLAG_PASSWORD); | |
5382 | PEER_STR_ATTR_INHERIT(peer, peer->group, password, | |
5383 | MTYPE_PEER_PASSWORD); | |
5384 | } else { | |
5385 | /* Otherwise remove flag and configuration from peer. */ | |
5386 | peer_flag_unset(peer, PEER_FLAG_PASSWORD); | |
5387 | XFREE(MTYPE_PEER_PASSWORD, peer->password); | |
5388 | } | |
5389 | ||
5390 | /* Check if handling a regular peer. */ | |
d62a17ae | 5391 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
a14810f4 | 5392 | /* Send notification or reset peer depending on state. */ |
d62a17ae | 5393 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) |
5394 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
5395 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); | |
5396 | else | |
5397 | bgp_session_reset(peer); | |
5398 | ||
a14810f4 | 5399 | /* Attempt to uninstall password on socket. */ |
d62a17ae | 5400 | if (!BGP_PEER_SU_UNSPEC(peer)) |
5401 | bgp_md5_unset(peer); | |
5402 | ||
a14810f4 | 5403 | /* Skip peer-group mechanics for regular peers. */ |
d62a17ae | 5404 | return 0; |
5405 | } | |
5406 | ||
a14810f4 PM |
5407 | /* |
5408 | * Remove flag and configuration from all peer-group members, unless | |
5409 | * they are explicitely overriding peer-group configuration. | |
5410 | */ | |
5411 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5412 | /* Skip peers with overridden configuration. */ | |
5413 | if (CHECK_FLAG(member->flags_override, PEER_FLAG_PASSWORD)) | |
d62a17ae | 5414 | continue; |
5415 | ||
a14810f4 PM |
5416 | /* Remove flag and configuration on peer-group member. */ |
5417 | UNSET_FLAG(member->flags, PEER_FLAG_PASSWORD); | |
5418 | XFREE(MTYPE_PEER_PASSWORD, member->password); | |
5419 | ||
5420 | /* Send notification or reset peer depending on state. */ | |
5421 | if (BGP_IS_VALID_STATE_FOR_NOTIF(member->status)) | |
5422 | bgp_notify_send(member, BGP_NOTIFY_CEASE, | |
d62a17ae | 5423 | BGP_NOTIFY_CEASE_CONFIG_CHANGE); |
5424 | else | |
a14810f4 | 5425 | bgp_session_reset(member); |
d62a17ae | 5426 | |
a14810f4 PM |
5427 | /* Attempt to uninstall password on socket. */ |
5428 | if (!BGP_PEER_SU_UNSPEC(member)) | |
5429 | bgp_md5_unset(member); | |
d62a17ae | 5430 | } |
5431 | ||
5432 | return 0; | |
5433 | } | |
6b0655a2 | 5434 | |
3f9c7369 | 5435 | |
718e3744 | 5436 | /* Set distribute list to the peer. */ |
d62a17ae | 5437 | int peer_distribute_set(struct peer *peer, afi_t afi, safi_t safi, int direct, |
5438 | const char *name) | |
5439 | { | |
70ee29b4 | 5440 | struct peer *member; |
d62a17ae | 5441 | struct bgp_filter *filter; |
d62a17ae | 5442 | struct listnode *node, *nnode; |
5443 | ||
5444 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5445 | return BGP_ERR_INVALID_VALUE; | |
5446 | ||
70ee29b4 | 5447 | /* Set configuration on peer. */ |
d62a17ae | 5448 | filter = &peer->filter[afi][safi]; |
d62a17ae | 5449 | if (filter->plist[direct].name) |
5450 | return BGP_ERR_PEER_FILTER_CONFLICT; | |
d62a17ae | 5451 | if (filter->dlist[direct].name) |
5452 | XFREE(MTYPE_BGP_FILTER_NAME, filter->dlist[direct].name); | |
5453 | filter->dlist[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5454 | filter->dlist[direct].alist = access_list_lookup(afi, name); | |
5455 | ||
70ee29b4 | 5456 | /* Check if handling a regular peer. */ |
d62a17ae | 5457 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
5458 | /* Set override-flag and process peer route updates. */ |
5459 | SET_FLAG(peer->filter_override[afi][safi][direct], | |
5460 | PEER_FT_DISTRIBUTE_LIST); | |
d62a17ae | 5461 | peer_on_policy_change(peer, afi, safi, |
5462 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
5463 | |
5464 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5465 | return 0; |
5466 | } | |
5467 | ||
70ee29b4 PM |
5468 | /* |
5469 | * Set configuration on all peer-group members, un less they are | |
5470 | * explicitely overriding peer-group configuration. | |
5471 | */ | |
5472 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5473 | /* Skip peers with overridden configuration. */ | |
5474 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
5475 | PEER_FT_DISTRIBUTE_LIST)) | |
5476 | continue; | |
d62a17ae | 5477 | |
70ee29b4 PM |
5478 | /* Set configuration on peer-group member. */ |
5479 | filter = &member->filter[afi][safi]; | |
d62a17ae | 5480 | if (filter->dlist[direct].name) |
5481 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5482 | filter->dlist[direct].name); | |
5483 | filter->dlist[direct].name = | |
5484 | XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5485 | filter->dlist[direct].alist = access_list_lookup(afi, name); | |
70ee29b4 PM |
5486 | |
5487 | /* Process peer route updates. */ | |
5488 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 5489 | (direct == FILTER_OUT) ? 1 : 0); |
5490 | } | |
5491 | ||
5492 | return 0; | |
5493 | } | |
5494 | ||
5495 | int peer_distribute_unset(struct peer *peer, afi_t afi, safi_t safi, int direct) | |
5496 | { | |
70ee29b4 | 5497 | struct peer *member; |
d62a17ae | 5498 | struct bgp_filter *filter; |
d62a17ae | 5499 | struct listnode *node, *nnode; |
5500 | ||
5501 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5502 | return BGP_ERR_INVALID_VALUE; | |
5503 | ||
70ee29b4 PM |
5504 | /* Unset override-flag unconditionally. */ |
5505 | UNSET_FLAG(peer->filter_override[afi][safi][direct], | |
5506 | PEER_FT_DISTRIBUTE_LIST); | |
d62a17ae | 5507 | |
70ee29b4 | 5508 | /* Inherit configuration from peer-group if peer is member. */ |
d62a17ae | 5509 | if (peer_group_active(peer)) { |
e7103a96 PM |
5510 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
5511 | filter[afi][safi].dlist[direct].name, | |
5512 | MTYPE_BGP_FILTER_NAME); | |
5513 | PEER_ATTR_INHERIT(peer, peer->group, | |
5514 | filter[afi][safi].dlist[direct].alist); | |
70ee29b4 PM |
5515 | } else { |
5516 | /* Otherwise remove configuration from peer. */ | |
5517 | filter = &peer->filter[afi][safi]; | |
5518 | if (filter->dlist[direct].name) | |
5519 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5520 | filter->dlist[direct].name); | |
5521 | filter->dlist[direct].name = NULL; | |
5522 | filter->dlist[direct].alist = NULL; | |
d62a17ae | 5523 | } |
5524 | ||
70ee29b4 | 5525 | /* Check if handling a regular peer. */ |
d62a17ae | 5526 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 5527 | /* Process peer route updates. */ |
d62a17ae | 5528 | peer_on_policy_change(peer, afi, safi, |
5529 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
5530 | |
5531 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5532 | return 0; |
5533 | } | |
5534 | ||
70ee29b4 PM |
5535 | /* |
5536 | * Remove configuration on all peer-group members, unless they are | |
5537 | * explicitely overriding peer-group configuration. | |
5538 | */ | |
5539 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5540 | /* Skip peers with overridden configuration. */ | |
5541 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
5542 | PEER_FT_DISTRIBUTE_LIST)) | |
5543 | continue; | |
d62a17ae | 5544 | |
70ee29b4 PM |
5545 | /* Remove configuration on peer-group member. */ |
5546 | filter = &member->filter[afi][safi]; | |
d62a17ae | 5547 | if (filter->dlist[direct].name) |
5548 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5549 | filter->dlist[direct].name); | |
5550 | filter->dlist[direct].name = NULL; | |
5551 | filter->dlist[direct].alist = NULL; | |
70ee29b4 PM |
5552 | |
5553 | /* Process peer route updates. */ | |
5554 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 5555 | (direct == FILTER_OUT) ? 1 : 0); |
5556 | } | |
5557 | ||
5558 | return 0; | |
5559 | } | |
5560 | ||
5561 | /* Update distribute list. */ | |
5562 | static void peer_distribute_update(struct access_list *access) | |
5563 | { | |
5564 | afi_t afi; | |
5565 | safi_t safi; | |
5566 | int direct; | |
5567 | struct listnode *mnode, *mnnode; | |
5568 | struct listnode *node, *nnode; | |
5569 | struct bgp *bgp; | |
5570 | struct peer *peer; | |
5571 | struct peer_group *group; | |
5572 | struct bgp_filter *filter; | |
5573 | ||
5574 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
5575 | if (access->name) | |
5576 | update_group_policy_update(bgp, BGP_POLICY_FILTER_LIST, | |
5577 | access->name, 0, 0); | |
5578 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
05c7a1cc QY |
5579 | FOREACH_AFI_SAFI (afi, safi) { |
5580 | filter = &peer->filter[afi][safi]; | |
5581 | ||
5582 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
5583 | direct++) { | |
5584 | if (filter->dlist[direct].name) | |
5585 | filter->dlist[direct] | |
5586 | .alist = access_list_lookup( | |
5587 | afi, | |
d62a17ae | 5588 | filter->dlist[direct] |
05c7a1cc QY |
5589 | .name); |
5590 | else | |
5591 | filter->dlist[direct].alist = | |
5592 | NULL; | |
d62a17ae | 5593 | } |
05c7a1cc | 5594 | } |
d62a17ae | 5595 | } |
5596 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
05c7a1cc QY |
5597 | FOREACH_AFI_SAFI (afi, safi) { |
5598 | filter = &group->conf->filter[afi][safi]; | |
5599 | ||
5600 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
5601 | direct++) { | |
5602 | if (filter->dlist[direct].name) | |
5603 | filter->dlist[direct] | |
5604 | .alist = access_list_lookup( | |
5605 | afi, | |
d62a17ae | 5606 | filter->dlist[direct] |
05c7a1cc QY |
5607 | .name); |
5608 | else | |
5609 | filter->dlist[direct].alist = | |
5610 | NULL; | |
d62a17ae | 5611 | } |
05c7a1cc | 5612 | } |
d62a17ae | 5613 | } |
5614 | #if ENABLE_BGP_VNC | |
5615 | vnc_prefix_list_update(bgp); | |
5616 | #endif | |
5617 | } | |
5618 | } | |
5619 | ||
5620 | /* Set prefix list to the peer. */ | |
5621 | int peer_prefix_list_set(struct peer *peer, afi_t afi, safi_t safi, int direct, | |
5622 | const char *name) | |
5623 | { | |
70ee29b4 | 5624 | struct peer *member; |
d62a17ae | 5625 | struct bgp_filter *filter; |
d62a17ae | 5626 | struct listnode *node, *nnode; |
5627 | ||
5628 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5629 | return BGP_ERR_INVALID_VALUE; | |
5630 | ||
70ee29b4 | 5631 | /* Set configuration on peer. */ |
d62a17ae | 5632 | filter = &peer->filter[afi][safi]; |
d62a17ae | 5633 | if (filter->dlist[direct].name) |
5634 | return BGP_ERR_PEER_FILTER_CONFLICT; | |
d62a17ae | 5635 | if (filter->plist[direct].name) |
5636 | XFREE(MTYPE_BGP_FILTER_NAME, filter->plist[direct].name); | |
5637 | filter->plist[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5638 | filter->plist[direct].plist = prefix_list_lookup(afi, name); | |
5639 | ||
70ee29b4 | 5640 | /* Check if handling a regular peer. */ |
d62a17ae | 5641 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
5642 | /* Set override-flag and process peer route updates. */ |
5643 | SET_FLAG(peer->filter_override[afi][safi][direct], | |
5644 | PEER_FT_PREFIX_LIST); | |
d62a17ae | 5645 | peer_on_policy_change(peer, afi, safi, |
5646 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
5647 | |
5648 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5649 | return 0; |
5650 | } | |
5651 | ||
70ee29b4 PM |
5652 | /* |
5653 | * Set configuration on all peer-group members, unless they are | |
5654 | * explicitely overriding peer-group configuration. | |
5655 | */ | |
5656 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5657 | /* Skip peers with overridden configuration. */ | |
5658 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
5659 | PEER_FT_PREFIX_LIST)) | |
5660 | continue; | |
d62a17ae | 5661 | |
70ee29b4 PM |
5662 | /* Set configuration on peer-group member. */ |
5663 | filter = &member->filter[afi][safi]; | |
d62a17ae | 5664 | if (filter->plist[direct].name) |
5665 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5666 | filter->plist[direct].name); | |
5667 | filter->plist[direct].name = | |
5668 | XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5669 | filter->plist[direct].plist = prefix_list_lookup(afi, name); | |
70ee29b4 PM |
5670 | |
5671 | /* Process peer route updates. */ | |
5672 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 5673 | (direct == FILTER_OUT) ? 1 : 0); |
5674 | } | |
70ee29b4 | 5675 | |
d62a17ae | 5676 | return 0; |
5677 | } | |
5678 | ||
5679 | int peer_prefix_list_unset(struct peer *peer, afi_t afi, safi_t safi, | |
5680 | int direct) | |
5681 | { | |
70ee29b4 | 5682 | struct peer *member; |
d62a17ae | 5683 | struct bgp_filter *filter; |
d62a17ae | 5684 | struct listnode *node, *nnode; |
5685 | ||
5686 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5687 | return BGP_ERR_INVALID_VALUE; | |
5688 | ||
70ee29b4 PM |
5689 | /* Unset override-flag unconditionally. */ |
5690 | UNSET_FLAG(peer->filter_override[afi][safi][direct], | |
5691 | PEER_FT_PREFIX_LIST); | |
d62a17ae | 5692 | |
70ee29b4 | 5693 | /* Inherit configuration from peer-group if peer is member. */ |
d62a17ae | 5694 | if (peer_group_active(peer)) { |
e7103a96 PM |
5695 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
5696 | filter[afi][safi].plist[direct].name, | |
5697 | MTYPE_BGP_FILTER_NAME); | |
5698 | PEER_ATTR_INHERIT(peer, peer->group, | |
5699 | filter[afi][safi].plist[direct].plist); | |
70ee29b4 PM |
5700 | } else { |
5701 | /* Otherwise remove configuration from peer. */ | |
5702 | filter = &peer->filter[afi][safi]; | |
5703 | if (filter->plist[direct].name) | |
5704 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5705 | filter->plist[direct].name); | |
5706 | filter->plist[direct].name = NULL; | |
5707 | filter->plist[direct].plist = NULL; | |
d62a17ae | 5708 | } |
5709 | ||
70ee29b4 | 5710 | /* Check if handling a regular peer. */ |
d62a17ae | 5711 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 5712 | /* Process peer route updates. */ |
d62a17ae | 5713 | peer_on_policy_change(peer, afi, safi, |
5714 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
5715 | |
5716 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5717 | return 0; |
5718 | } | |
5719 | ||
70ee29b4 PM |
5720 | /* |
5721 | * Remove configuration on all peer-group members, unless they are | |
5722 | * explicitely overriding peer-group configuration. | |
5723 | */ | |
5724 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5725 | /* Skip peers with overridden configuration. */ | |
5726 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
5727 | PEER_FT_PREFIX_LIST)) | |
5728 | continue; | |
d62a17ae | 5729 | |
70ee29b4 PM |
5730 | /* Remove configuration on peer-group member. */ |
5731 | filter = &member->filter[afi][safi]; | |
d62a17ae | 5732 | if (filter->plist[direct].name) |
5733 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5734 | filter->plist[direct].name); | |
5735 | filter->plist[direct].name = NULL; | |
5736 | filter->plist[direct].plist = NULL; | |
70ee29b4 PM |
5737 | |
5738 | /* Process peer route updates. */ | |
5739 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 5740 | (direct == FILTER_OUT) ? 1 : 0); |
5741 | } | |
5742 | ||
5743 | return 0; | |
5744 | } | |
5745 | ||
5746 | /* Update prefix-list list. */ | |
5747 | static void peer_prefix_list_update(struct prefix_list *plist) | |
5748 | { | |
5749 | struct listnode *mnode, *mnnode; | |
5750 | struct listnode *node, *nnode; | |
5751 | struct bgp *bgp; | |
5752 | struct peer *peer; | |
5753 | struct peer_group *group; | |
5754 | struct bgp_filter *filter; | |
5755 | afi_t afi; | |
5756 | safi_t safi; | |
5757 | int direct; | |
5758 | ||
5759 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
5760 | ||
5761 | /* | |
5762 | * Update the prefix-list on update groups. | |
5763 | */ | |
5764 | update_group_policy_update( | |
5765 | bgp, BGP_POLICY_PREFIX_LIST, | |
5766 | plist ? prefix_list_name(plist) : NULL, 0, 0); | |
5767 | ||
5768 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
05c7a1cc QY |
5769 | FOREACH_AFI_SAFI (afi, safi) { |
5770 | filter = &peer->filter[afi][safi]; | |
5771 | ||
5772 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
5773 | direct++) { | |
5774 | if (filter->plist[direct].name) | |
5775 | filter->plist[direct] | |
5776 | .plist = prefix_list_lookup( | |
5777 | afi, | |
d62a17ae | 5778 | filter->plist[direct] |
05c7a1cc QY |
5779 | .name); |
5780 | else | |
5781 | filter->plist[direct].plist = | |
5782 | NULL; | |
d62a17ae | 5783 | } |
05c7a1cc | 5784 | } |
d62a17ae | 5785 | } |
5786 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
05c7a1cc QY |
5787 | FOREACH_AFI_SAFI (afi, safi) { |
5788 | filter = &group->conf->filter[afi][safi]; | |
5789 | ||
5790 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
5791 | direct++) { | |
5792 | if (filter->plist[direct].name) | |
5793 | filter->plist[direct] | |
5794 | .plist = prefix_list_lookup( | |
5795 | afi, | |
d62a17ae | 5796 | filter->plist[direct] |
05c7a1cc QY |
5797 | .name); |
5798 | else | |
5799 | filter->plist[direct].plist = | |
5800 | NULL; | |
d62a17ae | 5801 | } |
05c7a1cc | 5802 | } |
d62a17ae | 5803 | } |
5804 | } | |
5805 | } | |
5806 | ||
5807 | int peer_aslist_set(struct peer *peer, afi_t afi, safi_t safi, int direct, | |
5808 | const char *name) | |
5809 | { | |
70ee29b4 | 5810 | struct peer *member; |
d62a17ae | 5811 | struct bgp_filter *filter; |
d62a17ae | 5812 | struct listnode *node, *nnode; |
5813 | ||
5814 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5815 | return BGP_ERR_INVALID_VALUE; | |
5816 | ||
70ee29b4 | 5817 | /* Set configuration on peer. */ |
d62a17ae | 5818 | filter = &peer->filter[afi][safi]; |
d62a17ae | 5819 | if (filter->aslist[direct].name) |
5820 | XFREE(MTYPE_BGP_FILTER_NAME, filter->aslist[direct].name); | |
5821 | filter->aslist[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5822 | filter->aslist[direct].aslist = as_list_lookup(name); | |
5823 | ||
70ee29b4 | 5824 | /* Check if handling a regular peer. */ |
d62a17ae | 5825 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
5826 | /* Set override-flag and process peer route updates. */ |
5827 | SET_FLAG(peer->filter_override[afi][safi][direct], | |
5828 | PEER_FT_FILTER_LIST); | |
d62a17ae | 5829 | peer_on_policy_change(peer, afi, safi, |
5830 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
5831 | |
5832 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5833 | return 0; |
5834 | } | |
5835 | ||
70ee29b4 PM |
5836 | /* |
5837 | * Set configuration on all peer-group members, unless they are | |
5838 | * explicitely overriding peer-group configuration. | |
5839 | */ | |
5840 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5841 | /* Skip peers with overridden configuration. */ | |
5842 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
5843 | PEER_FT_FILTER_LIST)) | |
5844 | continue; | |
d62a17ae | 5845 | |
70ee29b4 PM |
5846 | /* Set configuration on peer-group member. */ |
5847 | filter = &member->filter[afi][safi]; | |
d62a17ae | 5848 | if (filter->aslist[direct].name) |
5849 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5850 | filter->aslist[direct].name); | |
5851 | filter->aslist[direct].name = | |
5852 | XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
5853 | filter->aslist[direct].aslist = as_list_lookup(name); | |
70ee29b4 PM |
5854 | |
5855 | /* Process peer route updates. */ | |
5856 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 5857 | (direct == FILTER_OUT) ? 1 : 0); |
5858 | } | |
70ee29b4 | 5859 | |
d62a17ae | 5860 | return 0; |
5861 | } | |
5862 | ||
5863 | int peer_aslist_unset(struct peer *peer, afi_t afi, safi_t safi, int direct) | |
5864 | { | |
70ee29b4 | 5865 | struct peer *member; |
d62a17ae | 5866 | struct bgp_filter *filter; |
d62a17ae | 5867 | struct listnode *node, *nnode; |
5868 | ||
5869 | if (direct != FILTER_IN && direct != FILTER_OUT) | |
5870 | return BGP_ERR_INVALID_VALUE; | |
5871 | ||
70ee29b4 PM |
5872 | /* Unset override-flag unconditionally. */ |
5873 | UNSET_FLAG(peer->filter_override[afi][safi][direct], | |
5874 | PEER_FT_FILTER_LIST); | |
d62a17ae | 5875 | |
70ee29b4 | 5876 | /* Inherit configuration from peer-group if peer is member. */ |
d62a17ae | 5877 | if (peer_group_active(peer)) { |
e7103a96 PM |
5878 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
5879 | filter[afi][safi].aslist[direct].name, | |
5880 | MTYPE_BGP_FILTER_NAME); | |
5881 | PEER_ATTR_INHERIT(peer, peer->group, | |
70ee29b4 PM |
5882 | filter[afi][safi].aslist[direct].aslist); |
5883 | } else { | |
5884 | /* Otherwise remove configuration from peer. */ | |
5885 | filter = &peer->filter[afi][safi]; | |
5886 | if (filter->aslist[direct].name) | |
5887 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5888 | filter->aslist[direct].name); | |
5889 | filter->aslist[direct].name = NULL; | |
5890 | filter->aslist[direct].aslist = NULL; | |
d62a17ae | 5891 | } |
5892 | ||
70ee29b4 | 5893 | /* Check if handling a regular peer. */ |
d62a17ae | 5894 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 5895 | /* Process peer route updates. */ |
d62a17ae | 5896 | peer_on_policy_change(peer, afi, safi, |
5897 | (direct == FILTER_OUT) ? 1 : 0); | |
70ee29b4 PM |
5898 | |
5899 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 5900 | return 0; |
5901 | } | |
5902 | ||
70ee29b4 PM |
5903 | /* |
5904 | * Remove configuration on all peer-group members, unless they are | |
5905 | * explicitely overriding peer-group configuration. | |
5906 | */ | |
5907 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
5908 | /* Skip peers with overridden configuration. */ | |
5909 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
5910 | PEER_FT_FILTER_LIST)) | |
5911 | continue; | |
d62a17ae | 5912 | |
70ee29b4 PM |
5913 | /* Remove configuration on peer-group member. */ |
5914 | filter = &member->filter[afi][safi]; | |
d62a17ae | 5915 | if (filter->aslist[direct].name) |
5916 | XFREE(MTYPE_BGP_FILTER_NAME, | |
5917 | filter->aslist[direct].name); | |
5918 | filter->aslist[direct].name = NULL; | |
5919 | filter->aslist[direct].aslist = NULL; | |
70ee29b4 PM |
5920 | |
5921 | /* Process peer route updates. */ | |
5922 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 5923 | (direct == FILTER_OUT) ? 1 : 0); |
5924 | } | |
5925 | ||
5926 | return 0; | |
5927 | } | |
5928 | ||
5929 | static void peer_aslist_update(const char *aslist_name) | |
5930 | { | |
5931 | afi_t afi; | |
5932 | safi_t safi; | |
5933 | int direct; | |
5934 | struct listnode *mnode, *mnnode; | |
5935 | struct listnode *node, *nnode; | |
5936 | struct bgp *bgp; | |
5937 | struct peer *peer; | |
5938 | struct peer_group *group; | |
5939 | struct bgp_filter *filter; | |
5940 | ||
5941 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
5942 | update_group_policy_update(bgp, BGP_POLICY_FILTER_LIST, | |
5943 | aslist_name, 0, 0); | |
5944 | ||
5945 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
05c7a1cc QY |
5946 | FOREACH_AFI_SAFI (afi, safi) { |
5947 | filter = &peer->filter[afi][safi]; | |
5948 | ||
5949 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
5950 | direct++) { | |
5951 | if (filter->aslist[direct].name) | |
5952 | filter->aslist[direct] | |
5953 | .aslist = as_list_lookup( | |
d62a17ae | 5954 | filter->aslist[direct] |
05c7a1cc QY |
5955 | .name); |
5956 | else | |
5957 | filter->aslist[direct].aslist = | |
5958 | NULL; | |
d62a17ae | 5959 | } |
05c7a1cc | 5960 | } |
d62a17ae | 5961 | } |
5962 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
05c7a1cc QY |
5963 | FOREACH_AFI_SAFI (afi, safi) { |
5964 | filter = &group->conf->filter[afi][safi]; | |
5965 | ||
5966 | for (direct = FILTER_IN; direct < FILTER_MAX; | |
5967 | direct++) { | |
5968 | if (filter->aslist[direct].name) | |
5969 | filter->aslist[direct] | |
5970 | .aslist = as_list_lookup( | |
d62a17ae | 5971 | filter->aslist[direct] |
05c7a1cc QY |
5972 | .name); |
5973 | else | |
5974 | filter->aslist[direct].aslist = | |
5975 | NULL; | |
d62a17ae | 5976 | } |
05c7a1cc | 5977 | } |
d62a17ae | 5978 | } |
5979 | } | |
5980 | } | |
5981 | ||
5982 | static void peer_aslist_add(char *aslist_name) | |
5983 | { | |
5984 | peer_aslist_update(aslist_name); | |
5985 | route_map_notify_dependencies((char *)aslist_name, | |
5986 | RMAP_EVENT_ASLIST_ADDED); | |
5987 | } | |
5988 | ||
5989 | static void peer_aslist_del(const char *aslist_name) | |
5990 | { | |
5991 | peer_aslist_update(aslist_name); | |
5992 | route_map_notify_dependencies(aslist_name, RMAP_EVENT_ASLIST_DELETED); | |
5993 | } | |
5994 | ||
5995 | ||
5996 | int peer_route_map_set(struct peer *peer, afi_t afi, safi_t safi, int direct, | |
5997 | const char *name) | |
5998 | { | |
70ee29b4 | 5999 | struct peer *member; |
d62a17ae | 6000 | struct bgp_filter *filter; |
d62a17ae | 6001 | struct listnode *node, *nnode; |
6002 | ||
6003 | if (direct != RMAP_IN && direct != RMAP_OUT) | |
6004 | return BGP_ERR_INVALID_VALUE; | |
6005 | ||
70ee29b4 | 6006 | /* Set configuration on peer. */ |
d62a17ae | 6007 | filter = &peer->filter[afi][safi]; |
d62a17ae | 6008 | if (filter->map[direct].name) |
6009 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); | |
d62a17ae | 6010 | filter->map[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); |
6011 | filter->map[direct].map = route_map_lookup_by_name(name); | |
6012 | ||
70ee29b4 | 6013 | /* Check if handling a regular peer. */ |
d62a17ae | 6014 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
6015 | /* Set override-flag and process peer route updates. */ |
6016 | SET_FLAG(peer->filter_override[afi][safi][direct], | |
6017 | PEER_FT_ROUTE_MAP); | |
d62a17ae | 6018 | peer_on_policy_change(peer, afi, safi, |
6019 | (direct == RMAP_OUT) ? 1 : 0); | |
70ee29b4 PM |
6020 | |
6021 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6022 | return 0; |
6023 | } | |
6024 | ||
70ee29b4 PM |
6025 | /* |
6026 | * Set configuration on all peer-group members, unless they are | |
6027 | * explicitely overriding peer-group configuration. | |
6028 | */ | |
6029 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6030 | /* Skip peers with overridden configuration. */ | |
6031 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
6032 | PEER_FT_ROUTE_MAP)) | |
6033 | continue; | |
d62a17ae | 6034 | |
70ee29b4 PM |
6035 | /* Set configuration on peer-group member. */ |
6036 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6037 | if (filter->map[direct].name) |
6038 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); | |
6039 | filter->map[direct].name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
6040 | filter->map[direct].map = route_map_lookup_by_name(name); | |
70ee29b4 PM |
6041 | |
6042 | /* Process peer route updates. */ | |
6043 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 6044 | (direct == RMAP_OUT) ? 1 : 0); |
6045 | } | |
6046 | return 0; | |
6047 | } | |
6048 | ||
6049 | /* Unset route-map from the peer. */ | |
6050 | int peer_route_map_unset(struct peer *peer, afi_t afi, safi_t safi, int direct) | |
6051 | { | |
70ee29b4 | 6052 | struct peer *member; |
d62a17ae | 6053 | struct bgp_filter *filter; |
d62a17ae | 6054 | struct listnode *node, *nnode; |
6055 | ||
6056 | if (direct != RMAP_IN && direct != RMAP_OUT) | |
6057 | return BGP_ERR_INVALID_VALUE; | |
6058 | ||
70ee29b4 PM |
6059 | /* Unset override-flag unconditionally. */ |
6060 | UNSET_FLAG(peer->filter_override[afi][safi][direct], PEER_FT_ROUTE_MAP); | |
d62a17ae | 6061 | |
70ee29b4 | 6062 | /* Inherit configuration from peer-group if peer is member. */ |
d62a17ae | 6063 | if (peer_group_active(peer)) { |
e7103a96 PM |
6064 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
6065 | filter[afi][safi].map[direct].name, | |
6066 | MTYPE_BGP_FILTER_NAME); | |
6067 | PEER_ATTR_INHERIT(peer, peer->group, | |
6068 | filter[afi][safi].map[direct].map); | |
70ee29b4 PM |
6069 | } else { |
6070 | /* Otherwise remove configuration from peer. */ | |
6071 | filter = &peer->filter[afi][safi]; | |
6072 | if (filter->map[direct].name) | |
6073 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); | |
6074 | filter->map[direct].name = NULL; | |
6075 | filter->map[direct].map = NULL; | |
d62a17ae | 6076 | } |
6077 | ||
70ee29b4 | 6078 | /* Check if handling a regular peer. */ |
d62a17ae | 6079 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 6080 | /* Process peer route updates. */ |
d62a17ae | 6081 | peer_on_policy_change(peer, afi, safi, |
6082 | (direct == RMAP_OUT) ? 1 : 0); | |
70ee29b4 PM |
6083 | |
6084 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6085 | return 0; |
6086 | } | |
6087 | ||
70ee29b4 PM |
6088 | /* |
6089 | * Remove configuration on all peer-group members, unless they are | |
6090 | * explicitely overriding peer-group configuration. | |
6091 | */ | |
6092 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6093 | /* Skip peers with overridden configuration. */ | |
6094 | if (CHECK_FLAG(member->filter_override[afi][safi][direct], | |
6095 | PEER_FT_ROUTE_MAP)) | |
6096 | continue; | |
d62a17ae | 6097 | |
70ee29b4 PM |
6098 | /* Remove configuration on peer-group member. */ |
6099 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6100 | if (filter->map[direct].name) |
6101 | XFREE(MTYPE_BGP_FILTER_NAME, filter->map[direct].name); | |
6102 | filter->map[direct].name = NULL; | |
6103 | filter->map[direct].map = NULL; | |
70ee29b4 PM |
6104 | |
6105 | /* Process peer route updates. */ | |
6106 | peer_on_policy_change(member, afi, safi, | |
d62a17ae | 6107 | (direct == RMAP_OUT) ? 1 : 0); |
6108 | } | |
70ee29b4 | 6109 | |
d62a17ae | 6110 | return 0; |
6111 | } | |
6112 | ||
6113 | /* Set unsuppress-map to the peer. */ | |
6114 | int peer_unsuppress_map_set(struct peer *peer, afi_t afi, safi_t safi, | |
6115 | const char *name) | |
6116 | { | |
70ee29b4 | 6117 | struct peer *member; |
d62a17ae | 6118 | struct bgp_filter *filter; |
d62a17ae | 6119 | struct listnode *node, *nnode; |
6120 | ||
70ee29b4 | 6121 | /* Set configuration on peer. */ |
d62a17ae | 6122 | filter = &peer->filter[afi][safi]; |
d62a17ae | 6123 | if (filter->usmap.name) |
6124 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
d62a17ae | 6125 | filter->usmap.name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); |
6126 | filter->usmap.map = route_map_lookup_by_name(name); | |
6127 | ||
70ee29b4 | 6128 | /* Check if handling a regular peer. */ |
d62a17ae | 6129 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 PM |
6130 | /* Set override-flag and process peer route updates. */ |
6131 | SET_FLAG(peer->filter_override[afi][safi][0], | |
6132 | PEER_FT_UNSUPPRESS_MAP); | |
d62a17ae | 6133 | peer_on_policy_change(peer, afi, safi, 1); |
70ee29b4 PM |
6134 | |
6135 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6136 | return 0; |
6137 | } | |
6138 | ||
70ee29b4 PM |
6139 | /* |
6140 | * Set configuration on all peer-group members, unless they are | |
6141 | * explicitely overriding peer-group configuration. | |
6142 | */ | |
6143 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6144 | /* Skip peers with overridden configuration. */ | |
246bb5f0 | 6145 | if (CHECK_FLAG(member->filter_override[afi][safi][0], |
70ee29b4 PM |
6146 | PEER_FT_UNSUPPRESS_MAP)) |
6147 | continue; | |
d62a17ae | 6148 | |
70ee29b4 PM |
6149 | /* Set configuration on peer-group member. */ |
6150 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6151 | if (filter->usmap.name) |
6152 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
6153 | filter->usmap.name = XSTRDUP(MTYPE_BGP_FILTER_NAME, name); | |
6154 | filter->usmap.map = route_map_lookup_by_name(name); | |
70ee29b4 PM |
6155 | |
6156 | /* Process peer route updates. */ | |
6157 | peer_on_policy_change(member, afi, safi, 1); | |
d62a17ae | 6158 | } |
70ee29b4 | 6159 | |
d62a17ae | 6160 | return 0; |
6161 | } | |
6162 | ||
6163 | /* Unset route-map from the peer. */ | |
6164 | int peer_unsuppress_map_unset(struct peer *peer, afi_t afi, safi_t safi) | |
718e3744 | 6165 | { |
70ee29b4 | 6166 | struct peer *member; |
d62a17ae | 6167 | struct bgp_filter *filter; |
d62a17ae | 6168 | struct listnode *node, *nnode; |
6169 | ||
70ee29b4 PM |
6170 | /* Unset override-flag unconditionally. */ |
6171 | UNSET_FLAG(peer->filter_override[afi][safi][0], PEER_FT_UNSUPPRESS_MAP); | |
718e3744 | 6172 | |
70ee29b4 PM |
6173 | /* Inherit configuration from peer-group if peer is member. */ |
6174 | if (peer_group_active(peer)) { | |
e7103a96 PM |
6175 | PEER_STR_ATTR_INHERIT(peer, peer->group, |
6176 | filter[afi][safi].usmap.name, | |
6177 | MTYPE_BGP_FILTER_NAME); | |
6178 | PEER_ATTR_INHERIT(peer, peer->group, | |
6179 | filter[afi][safi].usmap.map); | |
70ee29b4 PM |
6180 | } else { |
6181 | /* Otherwise remove configuration from peer. */ | |
6182 | filter = &peer->filter[afi][safi]; | |
6183 | if (filter->usmap.name) | |
6184 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
6185 | filter->usmap.name = NULL; | |
6186 | filter->usmap.map = NULL; | |
6187 | } | |
718e3744 | 6188 | |
70ee29b4 | 6189 | /* Check if handling a regular peer. */ |
d62a17ae | 6190 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
70ee29b4 | 6191 | /* Process peer route updates. */ |
d62a17ae | 6192 | peer_on_policy_change(peer, afi, safi, 1); |
70ee29b4 PM |
6193 | |
6194 | /* Skip peer-group mechanics for regular peers. */ | |
d62a17ae | 6195 | return 0; |
6196 | } | |
718e3744 | 6197 | |
70ee29b4 PM |
6198 | /* |
6199 | * Remove configuration on all peer-group members, unless they are | |
6200 | * explicitely overriding peer-group configuration. | |
6201 | */ | |
6202 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6203 | /* Skip peers with overridden configuration. */ | |
6204 | if (CHECK_FLAG(member->filter_override[afi][safi][0], | |
6205 | PEER_FT_UNSUPPRESS_MAP)) | |
6206 | continue; | |
718e3744 | 6207 | |
70ee29b4 PM |
6208 | /* Remove configuration on peer-group member. */ |
6209 | filter = &member->filter[afi][safi]; | |
d62a17ae | 6210 | if (filter->usmap.name) |
6211 | XFREE(MTYPE_BGP_FILTER_NAME, filter->usmap.name); | |
6212 | filter->usmap.name = NULL; | |
6213 | filter->usmap.map = NULL; | |
70ee29b4 PM |
6214 | |
6215 | /* Process peer route updates. */ | |
6216 | peer_on_policy_change(member, afi, safi, 1); | |
d62a17ae | 6217 | } |
70ee29b4 | 6218 | |
d62a17ae | 6219 | return 0; |
6220 | } | |
718e3744 | 6221 | |
d62a17ae | 6222 | int peer_maximum_prefix_set(struct peer *peer, afi_t afi, safi_t safi, |
d7c0a89a QY |
6223 | uint32_t max, uint8_t threshold, int warning, |
6224 | uint16_t restart) | |
d62a17ae | 6225 | { |
598ce6bd | 6226 | struct peer *member; |
d62a17ae | 6227 | struct listnode *node, *nnode; |
6228 | ||
598ce6bd PM |
6229 | /* Set flags and configuration on peer. */ |
6230 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_MAX_PREFIX); | |
d62a17ae | 6231 | if (warning) |
598ce6bd | 6232 | peer_af_flag_set(peer, afi, safi, PEER_FLAG_MAX_PREFIX_WARNING); |
d62a17ae | 6233 | else |
598ce6bd PM |
6234 | peer_af_flag_unset(peer, afi, safi, |
6235 | PEER_FLAG_MAX_PREFIX_WARNING); | |
6236 | ||
04e1c5bb QY |
6237 | peer->pmax[afi][safi] = max; |
6238 | peer->pmax_threshold[afi][safi] = threshold; | |
6239 | peer->pmax_restart[afi][safi] = restart; | |
d62a17ae | 6240 | |
598ce6bd PM |
6241 | /* Check if handling a regular peer. */ |
6242 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
6243 | /* Re-check if peer violates maximum-prefix. */ | |
d62a17ae | 6244 | if ((peer->status == Established) && (peer->afc[afi][safi])) |
6245 | bgp_maximum_prefix_overflow(peer, afi, safi, 1); | |
04e1c5bb | 6246 | |
598ce6bd PM |
6247 | /* Skip peer-group mechanics for regular peers. */ |
6248 | return 0; | |
6249 | } | |
04e1c5bb | 6250 | |
598ce6bd PM |
6251 | /* |
6252 | * Set flags and configuration on all peer-group members, unless they | |
6253 | * are explicitely overriding peer-group configuration. | |
6254 | */ | |
6255 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { | |
6256 | /* Skip peers with overridden configuration. */ | |
6257 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
6258 | PEER_FLAG_MAX_PREFIX)) | |
6259 | continue; | |
04e1c5bb | 6260 | |
598ce6bd PM |
6261 | /* Set flag and configuration on peer-group member. */ |
6262 | member->pmax[afi][safi] = max; | |
6263 | member->pmax_threshold[afi][safi] = threshold; | |
6264 | member->pmax_restart[afi][safi] = restart; | |
04e1c5bb | 6265 | if (warning) |
598ce6bd | 6266 | SET_FLAG(member->af_flags[afi][safi], |
04e1c5bb QY |
6267 | PEER_FLAG_MAX_PREFIX_WARNING); |
6268 | else | |
598ce6bd | 6269 | UNSET_FLAG(member->af_flags[afi][safi], |
04e1c5bb | 6270 | PEER_FLAG_MAX_PREFIX_WARNING); |
598ce6bd PM |
6271 | |
6272 | /* Re-check if peer violates maximum-prefix. */ | |
6273 | if ((member->status == Established) && (member->afc[afi][safi])) | |
6274 | bgp_maximum_prefix_overflow(member, afi, safi, 1); | |
d62a17ae | 6275 | } |
718e3744 | 6276 | |
d62a17ae | 6277 | return 0; |
6278 | } | |
718e3744 | 6279 | |
d62a17ae | 6280 | int peer_maximum_prefix_unset(struct peer *peer, afi_t afi, safi_t safi) |
6281 | { | |
598ce6bd | 6282 | struct peer *member; |
d62a17ae | 6283 | struct listnode *node, *nnode; |
6284 | ||
598ce6bd PM |
6285 | /* Inherit configuration from peer-group if peer is member. */ |
6286 | if (peer_group_active(peer)) { | |
6287 | peer_af_flag_inherit(peer, afi, safi, PEER_FLAG_MAX_PREFIX); | |
6288 | peer_af_flag_inherit(peer, afi, safi, | |
6289 | PEER_FLAG_MAX_PREFIX_WARNING); | |
e7103a96 PM |
6290 | PEER_ATTR_INHERIT(peer, peer->group, pmax[afi][safi]); |
6291 | PEER_ATTR_INHERIT(peer, peer->group, pmax_threshold[afi][safi]); | |
6292 | PEER_ATTR_INHERIT(peer, peer->group, pmax_restart[afi][safi]); | |
04e1c5bb | 6293 | |
d62a17ae | 6294 | return 0; |
04e1c5bb | 6295 | } |
d62a17ae | 6296 | |
598ce6bd PM |
6297 | /* Remove flags and configuration from peer. */ |
6298 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_MAX_PREFIX); | |
6299 | peer_af_flag_unset(peer, afi, safi, PEER_FLAG_MAX_PREFIX_WARNING); | |
6300 | peer->pmax[afi][safi] = 0; | |
6301 | peer->pmax_threshold[afi][safi] = 0; | |
6302 | peer->pmax_restart[afi][safi] = 0; | |
6303 | ||
04e1c5bb | 6304 | /* |
598ce6bd PM |
6305 | * Remove flags and configuration from all peer-group members, unless |
6306 | * they are explicitely overriding peer-group configuration. | |
04e1c5bb | 6307 | */ |
598ce6bd PM |
6308 | for (ALL_LIST_ELEMENTS(peer->group->peer, node, nnode, member)) { |
6309 | /* Skip peers with overridden configuration. */ | |
6310 | if (CHECK_FLAG(member->af_flags_override[afi][safi], | |
6311 | PEER_FLAG_MAX_PREFIX)) | |
6312 | continue; | |
6313 | ||
6314 | /* Remove flag and configuration on peer-group member. */ | |
6315 | UNSET_FLAG(member->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX); | |
6316 | UNSET_FLAG(member->af_flags[afi][safi], | |
6317 | PEER_FLAG_MAX_PREFIX_WARNING); | |
6318 | member->pmax[afi][safi] = 0; | |
6319 | member->pmax_threshold[afi][safi] = 0; | |
6320 | member->pmax_restart[afi][safi] = 0; | |
d62a17ae | 6321 | } |
598ce6bd | 6322 | |
d62a17ae | 6323 | return 0; |
718e3744 | 6324 | } |
6325 | ||
d62a17ae | 6326 | int is_ebgp_multihop_configured(struct peer *peer) |
718e3744 | 6327 | { |
d62a17ae | 6328 | struct peer_group *group; |
6329 | struct listnode *node, *nnode; | |
6330 | struct peer *peer1; | |
718e3744 | 6331 | |
d62a17ae | 6332 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { |
6333 | group = peer->group; | |
6334 | if ((peer_sort(peer) != BGP_PEER_IBGP) | |
6335 | && (group->conf->ttl != 1)) | |
6336 | return 1; | |
718e3744 | 6337 | |
d62a17ae | 6338 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer1)) { |
6339 | if ((peer_sort(peer1) != BGP_PEER_IBGP) | |
6340 | && (peer1->ttl != 1)) | |
6341 | return 1; | |
6342 | } | |
6343 | } else { | |
6344 | if ((peer_sort(peer) != BGP_PEER_IBGP) && (peer->ttl != 1)) | |
6345 | return 1; | |
6346 | } | |
6347 | return 0; | |
6348 | } | |
718e3744 | 6349 | |
d62a17ae | 6350 | /* Set # of hops between us and BGP peer. */ |
6351 | int peer_ttl_security_hops_set(struct peer *peer, int gtsm_hops) | |
6352 | { | |
6353 | struct peer_group *group; | |
6354 | struct listnode *node, *nnode; | |
6355 | int ret; | |
6356 | ||
6357 | zlog_debug("peer_ttl_security_hops_set: set gtsm_hops to %d for %s", | |
6358 | gtsm_hops, peer->host); | |
6359 | ||
6360 | /* We cannot configure ttl-security hops when ebgp-multihop is already | |
6361 | set. For non peer-groups, the check is simple. For peer-groups, | |
6362 | it's | |
6363 | slightly messy, because we need to check both the peer-group | |
6364 | structure | |
6365 | and all peer-group members for any trace of ebgp-multihop | |
6366 | configuration | |
6367 | before actually applying the ttl-security rules. Cisco really made a | |
6368 | mess of this configuration parameter, and OpenBGPD got it right. | |
6369 | */ | |
6370 | ||
6371 | if ((peer->gtsm_hops == 0) && (peer->sort != BGP_PEER_IBGP)) { | |
6372 | if (is_ebgp_multihop_configured(peer)) | |
6373 | return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK; | |
6374 | ||
6375 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
6376 | peer->gtsm_hops = gtsm_hops; | |
6377 | ||
6378 | /* Calling ebgp multihop also resets the session. | |
6379 | * On restart, NHT will get setup correctly as will the | |
6380 | * min & max ttls on the socket. The return value is | |
6381 | * irrelevant. | |
6382 | */ | |
6383 | ret = peer_ebgp_multihop_set(peer, MAXTTL); | |
6384 | ||
6385 | if (ret != 0) | |
6386 | return ret; | |
6387 | } else { | |
6388 | group = peer->group; | |
6389 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, | |
6390 | peer)) { | |
6391 | peer->gtsm_hops = group->conf->gtsm_hops; | |
6392 | ||
6393 | /* Calling ebgp multihop also resets the | |
6394 | * session. | |
6395 | * On restart, NHT will get setup correctly as | |
6396 | * will the | |
6397 | * min & max ttls on the socket. The return | |
6398 | * value is | |
6399 | * irrelevant. | |
6400 | */ | |
6401 | peer_ebgp_multihop_set(peer, MAXTTL); | |
6402 | } | |
6403 | } | |
6404 | } else { | |
6405 | /* Post the first gtsm setup or if its ibgp, maxttl setting | |
6406 | * isn't | |
6407 | * necessary, just set the minttl. | |
6408 | */ | |
6409 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
6410 | peer->gtsm_hops = gtsm_hops; | |
6411 | ||
6412 | if (peer->fd >= 0) | |
6413 | sockopt_minttl(peer->su.sa.sa_family, peer->fd, | |
6414 | MAXTTL + 1 - gtsm_hops); | |
6415 | if ((peer->status < Established) && peer->doppelganger | |
6416 | && (peer->doppelganger->fd >= 0)) | |
6417 | sockopt_minttl(peer->su.sa.sa_family, | |
6418 | peer->doppelganger->fd, | |
6419 | MAXTTL + 1 - gtsm_hops); | |
6420 | } else { | |
6421 | group = peer->group; | |
6422 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, | |
6423 | peer)) { | |
6424 | peer->gtsm_hops = group->conf->gtsm_hops; | |
6425 | ||
6426 | /* Change setting of existing peer | |
6427 | * established then change value (may break | |
6428 | * connectivity) | |
6429 | * not established yet (teardown session and | |
6430 | * restart) | |
6431 | * no session then do nothing (will get | |
6432 | * handled by next connection) | |
6433 | */ | |
6434 | if (peer->fd >= 0 && peer->gtsm_hops != 0) | |
6435 | sockopt_minttl( | |
6436 | peer->su.sa.sa_family, peer->fd, | |
6437 | MAXTTL + 1 - peer->gtsm_hops); | |
6438 | if ((peer->status < Established) | |
6439 | && peer->doppelganger | |
6440 | && (peer->doppelganger->fd >= 0)) | |
6441 | sockopt_minttl(peer->su.sa.sa_family, | |
6442 | peer->doppelganger->fd, | |
6443 | MAXTTL + 1 - gtsm_hops); | |
6444 | } | |
6445 | } | |
6446 | } | |
718e3744 | 6447 | |
d62a17ae | 6448 | return 0; |
718e3744 | 6449 | } |
6450 | ||
d62a17ae | 6451 | int peer_ttl_security_hops_unset(struct peer *peer) |
6452 | { | |
6453 | struct peer_group *group; | |
6454 | struct listnode *node, *nnode; | |
6455 | int ret = 0; | |
6456 | ||
6457 | zlog_debug("peer_ttl_security_hops_unset: set gtsm_hops to zero for %s", | |
6458 | peer->host); | |
6459 | ||
6460 | /* if a peer-group member, then reset to peer-group default rather than | |
6461 | * 0 */ | |
6462 | if (peer_group_active(peer)) | |
6463 | peer->gtsm_hops = peer->group->conf->gtsm_hops; | |
6464 | else | |
6465 | peer->gtsm_hops = 0; | |
6466 | ||
6467 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
6468 | /* Invoking ebgp_multihop_set will set the TTL back to the | |
6469 | * original | |
6470 | * value as well as restting the NHT and such. The session is | |
6471 | * reset. | |
6472 | */ | |
6473 | if (peer->sort == BGP_PEER_EBGP) | |
6474 | ret = peer_ebgp_multihop_unset(peer); | |
6475 | else { | |
6476 | if (peer->fd >= 0) | |
6477 | sockopt_minttl(peer->su.sa.sa_family, peer->fd, | |
6478 | 0); | |
6479 | ||
6480 | if ((peer->status < Established) && peer->doppelganger | |
6481 | && (peer->doppelganger->fd >= 0)) | |
6482 | sockopt_minttl(peer->su.sa.sa_family, | |
6483 | peer->doppelganger->fd, 0); | |
6484 | } | |
6485 | } else { | |
6486 | group = peer->group; | |
6487 | for (ALL_LIST_ELEMENTS(group->peer, node, nnode, peer)) { | |
6488 | peer->gtsm_hops = 0; | |
6489 | if (peer->sort == BGP_PEER_EBGP) | |
6490 | ret = peer_ebgp_multihop_unset(peer); | |
6491 | else { | |
6492 | if (peer->fd >= 0) | |
6493 | sockopt_minttl(peer->su.sa.sa_family, | |
6494 | peer->fd, 0); | |
6495 | ||
6496 | if ((peer->status < Established) | |
6497 | && peer->doppelganger | |
6498 | && (peer->doppelganger->fd >= 0)) | |
6499 | sockopt_minttl(peer->su.sa.sa_family, | |
6500 | peer->doppelganger->fd, | |
6501 | 0); | |
6502 | } | |
6503 | } | |
6504 | } | |
718e3744 | 6505 | |
d62a17ae | 6506 | return ret; |
6507 | } | |
6508 | ||
6509 | /* | |
6510 | * If peer clear is invoked in a loop for all peers on the BGP instance, | |
6511 | * it may end up freeing the doppelganger, and if this was the next node | |
6512 | * to the current node, we would end up accessing the freed next node. | |
6513 | * Pass along additional parameter which can be updated if next node | |
6514 | * is freed; only required when walking the peer list on BGP instance. | |
6515 | */ | |
6516 | int peer_clear(struct peer *peer, struct listnode **nnode) | |
6517 | { | |
6518 | if (!CHECK_FLAG(peer->flags, PEER_FLAG_SHUTDOWN)) { | |
6519 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_PREFIX_OVERFLOW)) { | |
6520 | UNSET_FLAG(peer->sflags, PEER_STATUS_PREFIX_OVERFLOW); | |
6521 | if (peer->t_pmax_restart) { | |
6522 | BGP_TIMER_OFF(peer->t_pmax_restart); | |
6523 | if (bgp_debug_neighbor_events(peer)) | |
6524 | zlog_debug( | |
6525 | "%s Maximum-prefix restart timer canceled", | |
6526 | peer->host); | |
6527 | } | |
6528 | BGP_EVENT_ADD(peer, BGP_Start); | |
6529 | return 0; | |
6530 | } | |
6531 | ||
6532 | peer->v_start = BGP_INIT_START_TIMER; | |
6533 | if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status)) | |
6534 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
6535 | BGP_NOTIFY_CEASE_ADMIN_RESET); | |
6536 | else | |
6537 | bgp_session_reset_safe(peer, nnode); | |
718e3744 | 6538 | } |
d62a17ae | 6539 | return 0; |
718e3744 | 6540 | } |
6b0655a2 | 6541 | |
d62a17ae | 6542 | int peer_clear_soft(struct peer *peer, afi_t afi, safi_t safi, |
6543 | enum bgp_clear_type stype) | |
718e3744 | 6544 | { |
d62a17ae | 6545 | struct peer_af *paf; |
718e3744 | 6546 | |
d62a17ae | 6547 | if (peer->status != Established) |
6548 | return 0; | |
718e3744 | 6549 | |
d62a17ae | 6550 | if (!peer->afc[afi][safi]) |
6551 | return BGP_ERR_AF_UNCONFIGURED; | |
718e3744 | 6552 | |
d62a17ae | 6553 | peer->rtt = sockopt_tcp_rtt(peer->fd); |
718e3744 | 6554 | |
d62a17ae | 6555 | if (stype == BGP_CLEAR_SOFT_OUT || stype == BGP_CLEAR_SOFT_BOTH) { |
6556 | /* Clear the "neighbor x.x.x.x default-originate" flag */ | |
6557 | paf = peer_af_find(peer, afi, safi); | |
6558 | if (paf && paf->subgroup | |
6559 | && CHECK_FLAG(paf->subgroup->sflags, | |
6560 | SUBGRP_STATUS_DEFAULT_ORIGINATE)) | |
6561 | UNSET_FLAG(paf->subgroup->sflags, | |
6562 | SUBGRP_STATUS_DEFAULT_ORIGINATE); | |
718e3744 | 6563 | |
d62a17ae | 6564 | bgp_announce_route(peer, afi, safi); |
6565 | } | |
718e3744 | 6566 | |
d62a17ae | 6567 | if (stype == BGP_CLEAR_SOFT_IN_ORF_PREFIX) { |
6568 | if (CHECK_FLAG(peer->af_cap[afi][safi], | |
6569 | PEER_CAP_ORF_PREFIX_SM_ADV) | |
6570 | && (CHECK_FLAG(peer->af_cap[afi][safi], | |
6571 | PEER_CAP_ORF_PREFIX_RM_RCV) | |
6572 | || CHECK_FLAG(peer->af_cap[afi][safi], | |
6573 | PEER_CAP_ORF_PREFIX_RM_OLD_RCV))) { | |
6574 | struct bgp_filter *filter = &peer->filter[afi][safi]; | |
d7c0a89a | 6575 | uint8_t prefix_type; |
d62a17ae | 6576 | |
6577 | if (CHECK_FLAG(peer->af_cap[afi][safi], | |
6578 | PEER_CAP_ORF_PREFIX_RM_RCV)) | |
6579 | prefix_type = ORF_TYPE_PREFIX; | |
6580 | else | |
6581 | prefix_type = ORF_TYPE_PREFIX_OLD; | |
6582 | ||
6583 | if (filter->plist[FILTER_IN].plist) { | |
6584 | if (CHECK_FLAG(peer->af_sflags[afi][safi], | |
6585 | PEER_STATUS_ORF_PREFIX_SEND)) | |
6586 | bgp_route_refresh_send( | |
6587 | peer, afi, safi, prefix_type, | |
6588 | REFRESH_DEFER, 1); | |
6589 | bgp_route_refresh_send(peer, afi, safi, | |
6590 | prefix_type, | |
6591 | REFRESH_IMMEDIATE, 0); | |
6592 | } else { | |
6593 | if (CHECK_FLAG(peer->af_sflags[afi][safi], | |
6594 | PEER_STATUS_ORF_PREFIX_SEND)) | |
6595 | bgp_route_refresh_send( | |
6596 | peer, afi, safi, prefix_type, | |
6597 | REFRESH_IMMEDIATE, 1); | |
6598 | else | |
6599 | bgp_route_refresh_send(peer, afi, safi, | |
6600 | 0, 0, 0); | |
6601 | } | |
6602 | return 0; | |
6603 | } | |
6604 | } | |
718e3744 | 6605 | |
d62a17ae | 6606 | if (stype == BGP_CLEAR_SOFT_IN || stype == BGP_CLEAR_SOFT_BOTH |
6607 | || stype == BGP_CLEAR_SOFT_IN_ORF_PREFIX) { | |
6608 | /* If neighbor has soft reconfiguration inbound flag. | |
6609 | Use Adj-RIB-In database. */ | |
6610 | if (CHECK_FLAG(peer->af_flags[afi][safi], | |
6611 | PEER_FLAG_SOFT_RECONFIG)) | |
6612 | bgp_soft_reconfig_in(peer, afi, safi); | |
6613 | else { | |
6614 | /* If neighbor has route refresh capability, send route | |
6615 | refresh | |
6616 | message to the peer. */ | |
6617 | if (CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_OLD_RCV) | |
6618 | || CHECK_FLAG(peer->cap, PEER_CAP_REFRESH_NEW_RCV)) | |
6619 | bgp_route_refresh_send(peer, afi, safi, 0, 0, | |
6620 | 0); | |
6621 | else | |
6622 | return BGP_ERR_SOFT_RECONFIG_UNCONFIGURED; | |
6623 | } | |
6624 | } | |
6625 | return 0; | |
718e3744 | 6626 | } |
6627 | ||
d62a17ae | 6628 | /* Display peer uptime.*/ |
d7c0a89a | 6629 | char *peer_uptime(time_t uptime2, char *buf, size_t len, uint8_t use_json, |
d62a17ae | 6630 | json_object *json) |
6631 | { | |
6632 | time_t uptime1, epoch_tbuf; | |
6633 | struct tm *tm; | |
6634 | ||
d62a17ae | 6635 | /* If there is no connection has been done before print `never'. */ |
6636 | if (uptime2 == 0) { | |
6637 | if (use_json) { | |
6638 | json_object_string_add(json, "peerUptime", "never"); | |
6639 | json_object_int_add(json, "peerUptimeMsec", 0); | |
6640 | } else | |
6641 | snprintf(buf, len, "never"); | |
6642 | return buf; | |
6643 | } | |
718e3744 | 6644 | |
d62a17ae | 6645 | /* Get current time. */ |
6646 | uptime1 = bgp_clock(); | |
6647 | uptime1 -= uptime2; | |
6648 | tm = gmtime(&uptime1); | |
718e3744 | 6649 | |
d62a17ae | 6650 | if (uptime1 < ONE_DAY_SECOND) |
6651 | snprintf(buf, len, "%02d:%02d:%02d", tm->tm_hour, tm->tm_min, | |
6652 | tm->tm_sec); | |
6653 | else if (uptime1 < ONE_WEEK_SECOND) | |
6654 | snprintf(buf, len, "%dd%02dh%02dm", tm->tm_yday, tm->tm_hour, | |
6655 | tm->tm_min); | |
6656 | else if (uptime1 < ONE_YEAR_SECOND) | |
6657 | snprintf(buf, len, "%02dw%dd%02dh", tm->tm_yday / 7, | |
6658 | tm->tm_yday - ((tm->tm_yday / 7) * 7), tm->tm_hour); | |
6659 | else | |
6660 | snprintf(buf, len, "%02dy%02dw%dd", tm->tm_year - 70, | |
6661 | tm->tm_yday / 7, | |
6662 | tm->tm_yday - ((tm->tm_yday / 7) * 7)); | |
6663 | ||
6664 | if (use_json) { | |
6665 | epoch_tbuf = time(NULL) - uptime1; | |
6666 | json_object_string_add(json, "peerUptime", buf); | |
6667 | json_object_int_add(json, "peerUptimeMsec", uptime1 * 1000); | |
6668 | json_object_int_add(json, "peerUptimeEstablishedEpoch", | |
6669 | epoch_tbuf); | |
6670 | } | |
718e3744 | 6671 | |
d62a17ae | 6672 | return buf; |
718e3744 | 6673 | } |
6674 | ||
d62a17ae | 6675 | static void bgp_config_write_filter(struct vty *vty, struct peer *peer, |
2b791107 | 6676 | afi_t afi, safi_t safi) |
518f0eb1 | 6677 | { |
d62a17ae | 6678 | struct bgp_filter *filter; |
d62a17ae | 6679 | char *addr; |
518f0eb1 | 6680 | |
d62a17ae | 6681 | addr = peer->host; |
6682 | filter = &peer->filter[afi][safi]; | |
518f0eb1 | 6683 | |
d62a17ae | 6684 | /* distribute-list. */ |
70ee29b4 PM |
6685 | if (peergroup_filter_check(peer, afi, safi, PEER_FT_DISTRIBUTE_LIST, |
6686 | FILTER_IN)) | |
6687 | vty_out(vty, " neighbor %s distribute-list %s in\n", addr, | |
6688 | filter->dlist[FILTER_IN].name); | |
6b0655a2 | 6689 | |
70ee29b4 PM |
6690 | if (peergroup_filter_check(peer, afi, safi, PEER_FT_DISTRIBUTE_LIST, |
6691 | FILTER_OUT)) | |
2b791107 | 6692 | vty_out(vty, " neighbor %s distribute-list %s out\n", addr, |
70ee29b4 | 6693 | filter->dlist[FILTER_OUT].name); |
718e3744 | 6694 | |
d62a17ae | 6695 | /* prefix-list. */ |
70ee29b4 PM |
6696 | if (peergroup_filter_check(peer, afi, safi, PEER_FT_PREFIX_LIST, |
6697 | FILTER_IN)) | |
6698 | vty_out(vty, " neighbor %s prefix-list %s in\n", addr, | |
6699 | filter->plist[FILTER_IN].name); | |
718e3744 | 6700 | |
70ee29b4 PM |
6701 | if (peergroup_filter_check(peer, afi, safi, PEER_FT_PREFIX_LIST, |
6702 | FILTER_OUT)) | |
6703 | vty_out(vty, " neighbor %s prefix-list %s out\n", addr, | |
6704 | filter->plist[FILTER_OUT].name); | |
718e3744 | 6705 | |
d62a17ae | 6706 | /* route-map. */ |
70ee29b4 PM |
6707 | if (peergroup_filter_check(peer, afi, safi, PEER_FT_ROUTE_MAP, RMAP_IN)) |
6708 | vty_out(vty, " neighbor %s route-map %s in\n", addr, | |
6709 | filter->map[RMAP_IN].name); | |
518f0eb1 | 6710 | |
70ee29b4 PM |
6711 | if (peergroup_filter_check(peer, afi, safi, PEER_FT_ROUTE_MAP, |
6712 | RMAP_OUT)) | |
6713 | vty_out(vty, " neighbor %s route-map %s out\n", addr, | |
6714 | filter->map[RMAP_OUT].name); | |
718e3744 | 6715 | |
d62a17ae | 6716 | /* unsuppress-map */ |
70ee29b4 | 6717 | if (peergroup_filter_check(peer, afi, safi, PEER_FT_UNSUPPRESS_MAP, 0)) |
2b791107 DL |
6718 | vty_out(vty, " neighbor %s unsuppress-map %s\n", addr, |
6719 | filter->usmap.name); | |
718e3744 | 6720 | |
d62a17ae | 6721 | /* filter-list. */ |
70ee29b4 PM |
6722 | if (peergroup_filter_check(peer, afi, safi, PEER_FT_FILTER_LIST, |
6723 | FILTER_IN)) | |
6724 | vty_out(vty, " neighbor %s filter-list %s in\n", addr, | |
6725 | filter->aslist[FILTER_IN].name); | |
718e3744 | 6726 | |
70ee29b4 PM |
6727 | if (peergroup_filter_check(peer, afi, safi, PEER_FT_FILTER_LIST, |
6728 | FILTER_OUT)) | |
2b791107 | 6729 | vty_out(vty, " neighbor %s filter-list %s out\n", addr, |
70ee29b4 | 6730 | filter->aslist[FILTER_OUT].name); |
718e3744 | 6731 | } |
6732 | ||
d62a17ae | 6733 | /* BGP peer configuration display function. */ |
6734 | static void bgp_config_write_peer_global(struct vty *vty, struct bgp *bgp, | |
6735 | struct peer *peer) | |
6736 | { | |
6737 | struct peer *g_peer = NULL; | |
6738 | char buf[SU_ADDRSTRLEN]; | |
6739 | char *addr; | |
6740 | int if_pg_printed = FALSE; | |
6741 | int if_ras_printed = FALSE; | |
6742 | ||
6743 | /* Skip dynamic neighbors. */ | |
6744 | if (peer_dynamic_neighbor(peer)) | |
6745 | return; | |
6746 | ||
6747 | if (peer->conf_if) | |
6748 | addr = peer->conf_if; | |
6749 | else | |
6750 | addr = peer->host; | |
6751 | ||
6752 | /************************************ | |
6753 | ****** Global to the neighbor ****** | |
6754 | ************************************/ | |
6755 | if (peer->conf_if) { | |
6756 | if (CHECK_FLAG(peer->flags, PEER_FLAG_IFPEER_V6ONLY)) | |
6757 | vty_out(vty, " neighbor %s interface v6only", addr); | |
6758 | else | |
6759 | vty_out(vty, " neighbor %s interface", addr); | |
6760 | ||
6761 | if (peer_group_active(peer)) { | |
6762 | vty_out(vty, " peer-group %s", peer->group->name); | |
6763 | if_pg_printed = TRUE; | |
6764 | } else if (peer->as_type == AS_SPECIFIED) { | |
6765 | vty_out(vty, " remote-as %u", peer->as); | |
6766 | if_ras_printed = TRUE; | |
6767 | } else if (peer->as_type == AS_INTERNAL) { | |
6768 | vty_out(vty, " remote-as internal"); | |
6769 | if_ras_printed = TRUE; | |
6770 | } else if (peer->as_type == AS_EXTERNAL) { | |
6771 | vty_out(vty, " remote-as external"); | |
6772 | if_ras_printed = TRUE; | |
6773 | } | |
718e3744 | 6774 | |
d62a17ae | 6775 | vty_out(vty, "\n"); |
6776 | } | |
718e3744 | 6777 | |
d62a17ae | 6778 | /* remote-as and peer-group */ |
6779 | /* peer is a member of a peer-group */ | |
6780 | if (peer_group_active(peer)) { | |
6781 | g_peer = peer->group->conf; | |
6782 | ||
6783 | if (g_peer->as_type == AS_UNSPECIFIED && !if_ras_printed) { | |
6784 | if (peer->as_type == AS_SPECIFIED) { | |
6785 | vty_out(vty, " neighbor %s remote-as %u\n", | |
6786 | addr, peer->as); | |
6787 | } else if (peer->as_type == AS_INTERNAL) { | |
6788 | vty_out(vty, | |
6789 | " neighbor %s remote-as internal\n", | |
6790 | addr); | |
6791 | } else if (peer->as_type == AS_EXTERNAL) { | |
6792 | vty_out(vty, | |
6793 | " neighbor %s remote-as external\n", | |
6794 | addr); | |
6795 | } | |
6796 | } | |
718e3744 | 6797 | |
d62a17ae | 6798 | /* For swpX peers we displayed the peer-group |
6799 | * via 'neighbor swpX interface peer-group WORD' */ | |
6800 | if (!if_pg_printed) | |
6801 | vty_out(vty, " neighbor %s peer-group %s\n", addr, | |
6802 | peer->group->name); | |
6803 | } | |
718e3744 | 6804 | |
d62a17ae | 6805 | /* peer is NOT a member of a peer-group */ |
6806 | else { | |
6807 | /* peer is a peer-group, declare the peer-group */ | |
6808 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
6809 | vty_out(vty, " neighbor %s peer-group\n", addr); | |
6810 | } | |
6b0655a2 | 6811 | |
d62a17ae | 6812 | if (!if_ras_printed) { |
6813 | if (peer->as_type == AS_SPECIFIED) { | |
6814 | vty_out(vty, " neighbor %s remote-as %u\n", | |
6815 | addr, peer->as); | |
6816 | } else if (peer->as_type == AS_INTERNAL) { | |
6817 | vty_out(vty, | |
6818 | " neighbor %s remote-as internal\n", | |
6819 | addr); | |
6820 | } else if (peer->as_type == AS_EXTERNAL) { | |
6821 | vty_out(vty, | |
6822 | " neighbor %s remote-as external\n", | |
6823 | addr); | |
6824 | } | |
6825 | } | |
6826 | } | |
718e3744 | 6827 | |
d62a17ae | 6828 | /* local-as */ |
a14810f4 PM |
6829 | if (peergroup_flag_check(peer, PEER_FLAG_LOCAL_AS)) { |
6830 | vty_out(vty, " neighbor %s local-as %u", addr, | |
6831 | peer->change_local_as); | |
6832 | if (peergroup_flag_check(peer, PEER_FLAG_LOCAL_AS_NO_PREPEND)) | |
6833 | vty_out(vty, " no-prepend"); | |
6834 | if (peergroup_flag_check(peer, PEER_FLAG_LOCAL_AS_REPLACE_AS)) | |
6835 | vty_out(vty, " replace-as"); | |
6836 | vty_out(vty, "\n"); | |
5f9adb5d | 6837 | } |
5f9adb5d | 6838 | |
d62a17ae | 6839 | /* description */ |
6840 | if (peer->desc) { | |
6841 | vty_out(vty, " neighbor %s description %s\n", addr, peer->desc); | |
6842 | } | |
fa411a21 | 6843 | |
d62a17ae | 6844 | /* shutdown */ |
9fb964de PM |
6845 | if (peergroup_flag_check(peer, PEER_FLAG_SHUTDOWN)) { |
6846 | if (peer->tx_shutdown_message) | |
6847 | vty_out(vty, " neighbor %s shutdown message %s\n", addr, | |
6848 | peer->tx_shutdown_message); | |
6849 | else | |
6850 | vty_out(vty, " neighbor %s shutdown\n", addr); | |
d62a17ae | 6851 | } |
fa411a21 | 6852 | |
d62a17ae | 6853 | /* bfd */ |
6854 | if (peer->bfd_info) { | |
6855 | if (!peer_group_active(peer) || !g_peer->bfd_info) { | |
6856 | bgp_bfd_peer_config_write(vty, peer, addr); | |
6857 | } | |
6858 | } | |
e5cc509c | 6859 | |
d62a17ae | 6860 | /* password */ |
a14810f4 PM |
6861 | if (peergroup_flag_check(peer, PEER_FLAG_PASSWORD)) |
6862 | vty_out(vty, " neighbor %s password %s\n", addr, | |
6863 | peer->password); | |
fa411a21 | 6864 | |
d62a17ae | 6865 | /* neighbor solo */ |
6866 | if (CHECK_FLAG(peer->flags, PEER_FLAG_LONESOUL)) { | |
6867 | if (!peer_group_active(peer)) { | |
6868 | vty_out(vty, " neighbor %s solo\n", addr); | |
6869 | } | |
6870 | } | |
fa411a21 | 6871 | |
d62a17ae | 6872 | /* BGP port */ |
6873 | if (peer->port != BGP_PORT_DEFAULT) { | |
6874 | vty_out(vty, " neighbor %s port %d\n", addr, peer->port); | |
6875 | } | |
e5cc509c | 6876 | |
d62a17ae | 6877 | /* Local interface name */ |
6878 | if (peer->ifname) { | |
6879 | vty_out(vty, " neighbor %s interface %s\n", addr, peer->ifname); | |
e5cc509c | 6880 | } |
fa411a21 | 6881 | |
d62a17ae | 6882 | /* passive */ |
9fb964de PM |
6883 | if (peergroup_flag_check(peer, PEER_FLAG_PASSIVE)) |
6884 | vty_out(vty, " neighbor %s passive\n", addr); | |
1ff9a340 | 6885 | |
d62a17ae | 6886 | /* ebgp-multihop */ |
6887 | if (peer->sort != BGP_PEER_IBGP && peer->ttl != 1 | |
6888 | && !(peer->gtsm_hops != 0 && peer->ttl == MAXTTL)) { | |
6889 | if (!peer_group_active(peer) || g_peer->ttl != peer->ttl) { | |
6890 | vty_out(vty, " neighbor %s ebgp-multihop %d\n", addr, | |
6891 | peer->ttl); | |
6892 | } | |
fa411a21 | 6893 | } |
fa411a21 | 6894 | |
d62a17ae | 6895 | /* ttl-security hops */ |
6896 | if (peer->gtsm_hops != 0) { | |
6897 | if (!peer_group_active(peer) | |
6898 | || g_peer->gtsm_hops != peer->gtsm_hops) { | |
6899 | vty_out(vty, " neighbor %s ttl-security hops %d\n", | |
6900 | addr, peer->gtsm_hops); | |
6901 | } | |
6902 | } | |
6903 | ||
6904 | /* disable-connected-check */ | |
9fb964de PM |
6905 | if (peergroup_flag_check(peer, PEER_FLAG_DISABLE_CONNECTED_CHECK)) |
6906 | vty_out(vty, " neighbor %s disable-connected-check\n", addr); | |
d62a17ae | 6907 | |
47cbc09b | 6908 | /* enforce-first-as */ |
9fb964de PM |
6909 | if (peergroup_flag_check(peer, PEER_FLAG_ENFORCE_FIRST_AS)) |
6910 | vty_out(vty, " neighbor %s enforce-first-as\n", addr); | |
47cbc09b | 6911 | |
d62a17ae | 6912 | /* update-source */ |
a14810f4 PM |
6913 | if (peergroup_flag_check(peer, PEER_FLAG_UPDATE_SOURCE)) { |
6914 | if (peer->update_source) | |
d62a17ae | 6915 | vty_out(vty, " neighbor %s update-source %s\n", addr, |
6916 | sockunion2str(peer->update_source, buf, | |
6917 | SU_ADDRSTRLEN)); | |
a14810f4 PM |
6918 | else if (peer->update_if) |
6919 | vty_out(vty, " neighbor %s update-source %s\n", addr, | |
6920 | peer->update_if); | |
d62a17ae | 6921 | } |
6922 | ||
6923 | /* advertisement-interval */ | |
b90a8e13 | 6924 | if (peergroup_flag_check(peer, PEER_FLAG_ROUTEADV)) |
d62a17ae | 6925 | vty_out(vty, " neighbor %s advertisement-interval %u\n", addr, |
b90a8e13 | 6926 | peer->routeadv); |
d62a17ae | 6927 | |
6928 | /* timers */ | |
b90a8e13 | 6929 | if (peergroup_flag_check(peer, PEER_FLAG_TIMER)) |
d62a17ae | 6930 | vty_out(vty, " neighbor %s timers %u %u\n", addr, |
6931 | peer->keepalive, peer->holdtime); | |
d62a17ae | 6932 | |
b90a8e13 PM |
6933 | /* timers connect */ |
6934 | if (peergroup_flag_check(peer, PEER_FLAG_TIMER_CONNECT)) | |
d62a17ae | 6935 | vty_out(vty, " neighbor %s timers connect %u\n", addr, |
6936 | peer->connect); | |
6b0655a2 | 6937 | |
d62a17ae | 6938 | /* capability dynamic */ |
9fb964de PM |
6939 | if (peergroup_flag_check(peer, PEER_FLAG_DYNAMIC_CAPABILITY)) |
6940 | vty_out(vty, " neighbor %s capability dynamic\n", addr); | |
718e3744 | 6941 | |
d62a17ae | 6942 | /* capability extended-nexthop */ |
9fb964de PM |
6943 | if (peergroup_flag_check(peer, PEER_FLAG_CAPABILITY_ENHE)) { |
6944 | if (CHECK_FLAG(peer->flags_invert, PEER_FLAG_CAPABILITY_ENHE)) | |
d62a17ae | 6945 | vty_out(vty, |
6946 | " no neighbor %s capability extended-nexthop\n", | |
6947 | addr); | |
9fb964de | 6948 | else |
d62a17ae | 6949 | vty_out(vty, |
6950 | " neighbor %s capability extended-nexthop\n", | |
6951 | addr); | |
d62a17ae | 6952 | } |
6953 | ||
6954 | /* dont-capability-negotiation */ | |
9fb964de PM |
6955 | if (peergroup_flag_check(peer, PEER_FLAG_DONT_CAPABILITY)) |
6956 | vty_out(vty, " neighbor %s dont-capability-negotiate\n", addr); | |
d62a17ae | 6957 | |
6958 | /* override-capability */ | |
9fb964de PM |
6959 | if (peergroup_flag_check(peer, PEER_FLAG_OVERRIDE_CAPABILITY)) |
6960 | vty_out(vty, " neighbor %s override-capability\n", addr); | |
d62a17ae | 6961 | |
6962 | /* strict-capability-match */ | |
9fb964de PM |
6963 | if (peergroup_flag_check(peer, PEER_FLAG_STRICT_CAP_MATCH)) |
6964 | vty_out(vty, " neighbor %s strict-capability-match\n", addr); | |
0b960b4d DW |
6965 | } |
6966 | ||
0b960b4d | 6967 | /* BGP peer configuration display function. */ |
d62a17ae | 6968 | static void bgp_config_write_peer_af(struct vty *vty, struct bgp *bgp, |
2b791107 | 6969 | struct peer *peer, afi_t afi, safi_t safi) |
d62a17ae | 6970 | { |
6971 | struct peer *g_peer = NULL; | |
6972 | char *addr; | |
27c05d4d | 6973 | bool flag_scomm, flag_secomm, flag_slcomm; |
d62a17ae | 6974 | |
6975 | /* Skip dynamic neighbors. */ | |
6976 | if (peer_dynamic_neighbor(peer)) | |
6977 | return; | |
6978 | ||
6979 | if (peer->conf_if) | |
6980 | addr = peer->conf_if; | |
6981 | else | |
6982 | addr = peer->host; | |
6983 | ||
6984 | /************************************ | |
6985 | ****** Per AF to the neighbor ****** | |
6986 | ************************************/ | |
6987 | if (peer_group_active(peer)) { | |
6988 | g_peer = peer->group->conf; | |
6989 | ||
6990 | /* If the peer-group is active but peer is not, print a 'no | |
6991 | * activate' */ | |
6992 | if (g_peer->afc[afi][safi] && !peer->afc[afi][safi]) { | |
2b791107 | 6993 | vty_out(vty, " no neighbor %s activate\n", addr); |
d62a17ae | 6994 | } |
6995 | ||
6996 | /* If the peer-group is not active but peer is, print an | |
6997 | 'activate' */ | |
6998 | else if (!g_peer->afc[afi][safi] && peer->afc[afi][safi]) { | |
2b791107 | 6999 | vty_out(vty, " neighbor %s activate\n", addr); |
d62a17ae | 7000 | } |
7001 | } else { | |
7002 | if (peer->afc[afi][safi]) { | |
7003 | if ((afi == AFI_IP) && (safi == SAFI_UNICAST)) { | |
7004 | if (bgp_flag_check(bgp, | |
7005 | BGP_FLAG_NO_DEFAULT_IPV4)) { | |
2b791107 | 7006 | vty_out(vty, " neighbor %s activate\n", |
d62a17ae | 7007 | addr); |
7008 | } | |
7009 | } else | |
2b791107 | 7010 | vty_out(vty, " neighbor %s activate\n", addr); |
d62a17ae | 7011 | } else { |
7012 | if ((afi == AFI_IP) && (safi == SAFI_UNICAST)) { | |
7013 | if (!bgp_flag_check(bgp, | |
7014 | BGP_FLAG_NO_DEFAULT_IPV4)) { | |
2b791107 | 7015 | vty_out(vty, |
d62a17ae | 7016 | " no neighbor %s activate\n", |
7017 | addr); | |
7018 | } | |
7019 | } | |
7020 | } | |
7021 | } | |
7022 | ||
7023 | /* addpath TX knobs */ | |
7024 | if (peergroup_af_flag_check(peer, afi, safi, | |
7025 | PEER_FLAG_ADDPATH_TX_ALL_PATHS)) { | |
2b791107 | 7026 | vty_out(vty, " neighbor %s addpath-tx-all-paths\n", addr); |
d62a17ae | 7027 | } |
7028 | ||
7029 | if (peergroup_af_flag_check(peer, afi, safi, | |
7030 | PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS)) { | |
2b791107 DL |
7031 | vty_out(vty, " neighbor %s addpath-tx-bestpath-per-AS\n", |
7032 | addr); | |
d62a17ae | 7033 | } |
7034 | ||
7035 | /* ORF capability. */ | |
7036 | if (peergroup_af_flag_check(peer, afi, safi, PEER_FLAG_ORF_PREFIX_SM) | |
7037 | || peergroup_af_flag_check(peer, afi, safi, | |
7038 | PEER_FLAG_ORF_PREFIX_RM)) { | |
2b791107 | 7039 | vty_out(vty, " neighbor %s capability orf prefix-list", addr); |
d62a17ae | 7040 | |
7041 | if (peergroup_af_flag_check(peer, afi, safi, | |
7042 | PEER_FLAG_ORF_PREFIX_SM) | |
7043 | && peergroup_af_flag_check(peer, afi, safi, | |
7044 | PEER_FLAG_ORF_PREFIX_RM)) | |
7045 | vty_out(vty, " both"); | |
7046 | else if (peergroup_af_flag_check(peer, afi, safi, | |
7047 | PEER_FLAG_ORF_PREFIX_SM)) | |
7048 | vty_out(vty, " send"); | |
7049 | else | |
7050 | vty_out(vty, " receive"); | |
7051 | vty_out(vty, "\n"); | |
7052 | } | |
7053 | ||
7054 | /* Route reflector client. */ | |
7055 | if (peergroup_af_flag_check(peer, afi, safi, | |
7056 | PEER_FLAG_REFLECTOR_CLIENT)) { | |
2b791107 | 7057 | vty_out(vty, " neighbor %s route-reflector-client\n", addr); |
d62a17ae | 7058 | } |
7059 | ||
7060 | /* next-hop-self force */ | |
7061 | if (peergroup_af_flag_check(peer, afi, safi, | |
7062 | PEER_FLAG_FORCE_NEXTHOP_SELF)) { | |
2b791107 | 7063 | vty_out(vty, " neighbor %s next-hop-self force\n", addr); |
d62a17ae | 7064 | } |
7065 | ||
7066 | /* next-hop-self */ | |
7067 | if (peergroup_af_flag_check(peer, afi, safi, PEER_FLAG_NEXTHOP_SELF)) { | |
2b791107 | 7068 | vty_out(vty, " neighbor %s next-hop-self\n", addr); |
d62a17ae | 7069 | } |
7070 | ||
7071 | /* remove-private-AS */ | |
7072 | if (peergroup_af_flag_check(peer, afi, safi, | |
7073 | PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE)) { | |
2b791107 | 7074 | vty_out(vty, " neighbor %s remove-private-AS all replace-AS\n", |
d62a17ae | 7075 | addr); |
7076 | } | |
7077 | ||
7078 | else if (peergroup_af_flag_check(peer, afi, safi, | |
7079 | PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE)) { | |
2b791107 DL |
7080 | vty_out(vty, " neighbor %s remove-private-AS replace-AS\n", |
7081 | addr); | |
d62a17ae | 7082 | } |
7083 | ||
7084 | else if (peergroup_af_flag_check(peer, afi, safi, | |
7085 | PEER_FLAG_REMOVE_PRIVATE_AS_ALL)) { | |
2b791107 | 7086 | vty_out(vty, " neighbor %s remove-private-AS all\n", addr); |
d62a17ae | 7087 | } |
7088 | ||
7089 | else if (peergroup_af_flag_check(peer, afi, safi, | |
7090 | PEER_FLAG_REMOVE_PRIVATE_AS)) { | |
2b791107 | 7091 | vty_out(vty, " neighbor %s remove-private-AS\n", addr); |
d62a17ae | 7092 | } |
7093 | ||
7094 | /* as-override */ | |
7095 | if (peergroup_af_flag_check(peer, afi, safi, PEER_FLAG_AS_OVERRIDE)) { | |
2b791107 | 7096 | vty_out(vty, " neighbor %s as-override\n", addr); |
d62a17ae | 7097 | } |
7098 | ||
7099 | /* send-community print. */ | |
27c05d4d | 7100 | flag_scomm = peergroup_af_flag_check(peer, afi, safi, |
cf9ac8bf | 7101 | PEER_FLAG_SEND_COMMUNITY); |
27c05d4d | 7102 | flag_secomm = peergroup_af_flag_check(peer, afi, safi, |
cf9ac8bf | 7103 | PEER_FLAG_SEND_EXT_COMMUNITY); |
27c05d4d | 7104 | flag_slcomm = peergroup_af_flag_check(peer, afi, safi, |
cf9ac8bf | 7105 | PEER_FLAG_SEND_LARGE_COMMUNITY); |
27c05d4d PM |
7106 | |
7107 | if (!bgp_option_check(BGP_OPT_CONFIG_CISCO)) { | |
7108 | if (flag_scomm && flag_secomm && flag_slcomm) { | |
2b791107 DL |
7109 | vty_out(vty, " no neighbor %s send-community all\n", |
7110 | addr); | |
d62a17ae | 7111 | } else { |
27c05d4d | 7112 | if (flag_scomm) |
2b791107 | 7113 | vty_out(vty, |
27c05d4d | 7114 | " no neighbor %s send-community\n", |
d62a17ae | 7115 | addr); |
27c05d4d | 7116 | if (flag_secomm) |
2b791107 | 7117 | vty_out(vty, |
d62a17ae | 7118 | " no neighbor %s send-community extended\n", |
7119 | addr); | |
d62a17ae | 7120 | |
27c05d4d | 7121 | if (flag_slcomm) |
2b791107 | 7122 | vty_out(vty, |
27c05d4d PM |
7123 | " no neighbor %s send-community large\n", |
7124 | addr); | |
7125 | } | |
7126 | } else { | |
7127 | if (flag_scomm && flag_secomm && flag_slcomm) { | |
7128 | vty_out(vty, " neighbor %s send-community all\n", | |
7129 | addr); | |
7130 | } else if (flag_scomm && flag_secomm) { | |
7131 | vty_out(vty, " neighbor %s send-community both\n", | |
7132 | addr); | |
7133 | } else { | |
7134 | if (flag_scomm) | |
7135 | vty_out(vty, " neighbor %s send-community\n", | |
7136 | addr); | |
7137 | if (flag_secomm) | |
7138 | vty_out(vty, | |
7139 | " neighbor %s send-community extended\n", | |
7140 | addr); | |
7141 | if (flag_slcomm) | |
7142 | vty_out(vty, | |
7143 | " neighbor %s send-community large\n", | |
d62a17ae | 7144 | addr); |
d62a17ae | 7145 | } |
7146 | } | |
7147 | ||
7148 | /* Default information */ | |
7149 | if (peergroup_af_flag_check(peer, afi, safi, | |
598ce6bd | 7150 | PEER_FLAG_DEFAULT_ORIGINATE)) { |
2b791107 | 7151 | vty_out(vty, " neighbor %s default-originate", addr); |
598ce6bd | 7152 | |
d62a17ae | 7153 | if (peer->default_rmap[afi][safi].name) |
7154 | vty_out(vty, " route-map %s", | |
7155 | peer->default_rmap[afi][safi].name); | |
598ce6bd | 7156 | |
d62a17ae | 7157 | vty_out(vty, "\n"); |
7158 | } | |
7159 | ||
7160 | /* Soft reconfiguration inbound. */ | |
7161 | if (peergroup_af_flag_check(peer, afi, safi, PEER_FLAG_SOFT_RECONFIG)) { | |
2b791107 DL |
7162 | vty_out(vty, " neighbor %s soft-reconfiguration inbound\n", |
7163 | addr); | |
d62a17ae | 7164 | } |
7165 | ||
7166 | /* maximum-prefix. */ | |
598ce6bd PM |
7167 | if (peergroup_af_flag_check(peer, afi, safi, PEER_FLAG_MAX_PREFIX)) { |
7168 | vty_out(vty, " neighbor %s maximum-prefix %lu", addr, | |
7169 | peer->pmax[afi][safi]); | |
7170 | ||
7171 | if (peer->pmax_threshold[afi][safi] | |
7172 | != MAXIMUM_PREFIX_THRESHOLD_DEFAULT) | |
7173 | vty_out(vty, " %u", peer->pmax_threshold[afi][safi]); | |
7174 | if (peer_af_flag_check(peer, afi, safi, | |
d62a17ae | 7175 | PEER_FLAG_MAX_PREFIX_WARNING)) |
598ce6bd PM |
7176 | vty_out(vty, " warning-only"); |
7177 | if (peer->pmax_restart[afi][safi]) | |
7178 | vty_out(vty, " restart %u", | |
7179 | peer->pmax_restart[afi][safi]); | |
7180 | ||
7181 | vty_out(vty, "\n"); | |
7182 | } | |
d62a17ae | 7183 | |
7184 | /* Route server client. */ | |
7185 | if (peergroup_af_flag_check(peer, afi, safi, | |
7186 | PEER_FLAG_RSERVER_CLIENT)) { | |
2b791107 | 7187 | vty_out(vty, " neighbor %s route-server-client\n", addr); |
d62a17ae | 7188 | } |
7189 | ||
7190 | /* Nexthop-local unchanged. */ | |
7191 | if (peergroup_af_flag_check(peer, afi, safi, | |
7192 | PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED)) { | |
2b791107 | 7193 | vty_out(vty, " neighbor %s nexthop-local unchanged\n", addr); |
d62a17ae | 7194 | } |
7195 | ||
7196 | /* allowas-in <1-10> */ | |
598ce6bd PM |
7197 | if (peergroup_af_flag_check(peer, afi, safi, PEER_FLAG_ALLOWAS_IN)) { |
7198 | if (peer_af_flag_check(peer, afi, safi, | |
7199 | PEER_FLAG_ALLOWAS_IN_ORIGIN)) { | |
2b791107 | 7200 | vty_out(vty, " neighbor %s allowas-in origin\n", addr); |
598ce6bd PM |
7201 | } else if (peer->allowas_in[afi][safi] == 3) { |
7202 | vty_out(vty, " neighbor %s allowas-in\n", addr); | |
7203 | } else { | |
7204 | vty_out(vty, " neighbor %s allowas-in %d\n", addr, | |
cf9ac8bf | 7205 | peer->allowas_in[afi][safi]); |
d62a17ae | 7206 | } |
7207 | } | |
7208 | ||
7209 | /* weight */ | |
598ce6bd PM |
7210 | if (peergroup_af_flag_check(peer, afi, safi, PEER_FLAG_WEIGHT)) |
7211 | vty_out(vty, " neighbor %s weight %lu\n", addr, | |
7212 | peer->weight[afi][safi]); | |
d62a17ae | 7213 | |
7214 | /* Filter. */ | |
2b791107 | 7215 | bgp_config_write_filter(vty, peer, afi, safi); |
d62a17ae | 7216 | |
7217 | /* atribute-unchanged. */ | |
a4d82a8a | 7218 | if (peer_af_flag_check(peer, afi, safi, PEER_FLAG_AS_PATH_UNCHANGED) |
3518f352 DS |
7219 | || (safi != SAFI_EVPN |
7220 | && peer_af_flag_check(peer, afi, safi, | |
7221 | PEER_FLAG_NEXTHOP_UNCHANGED)) | |
a4d82a8a PZ |
7222 | || peer_af_flag_check(peer, afi, safi, PEER_FLAG_MED_UNCHANGED)) { |
7223 | ||
7224 | if (!peer_group_active(peer) | |
7225 | || peergroup_af_flag_check(peer, afi, safi, | |
7226 | PEER_FLAG_AS_PATH_UNCHANGED) | |
7227 | || peergroup_af_flag_check(peer, afi, safi, | |
7228 | PEER_FLAG_NEXTHOP_UNCHANGED) | |
7229 | || peergroup_af_flag_check(peer, afi, safi, | |
7230 | PEER_FLAG_MED_UNCHANGED)) { | |
8eeb0335 | 7231 | |
2b791107 | 7232 | vty_out(vty, |
d62a17ae | 7233 | " neighbor %s attribute-unchanged%s%s%s\n", |
7234 | addr, | |
60466a63 QY |
7235 | peer_af_flag_check(peer, afi, safi, |
7236 | PEER_FLAG_AS_PATH_UNCHANGED) | |
d62a17ae | 7237 | ? " as-path" |
7238 | : "", | |
60466a63 QY |
7239 | peer_af_flag_check(peer, afi, safi, |
7240 | PEER_FLAG_NEXTHOP_UNCHANGED) | |
d62a17ae | 7241 | ? " next-hop" |
7242 | : "", | |
8eeb0335 DW |
7243 | peer_af_flag_check(peer, afi, safi, |
7244 | PEER_FLAG_MED_UNCHANGED) | |
d62a17ae | 7245 | ? " med" |
7246 | : ""); | |
7247 | } | |
7248 | } | |
718e3744 | 7249 | } |
7250 | ||
2b791107 DL |
7251 | /* Address family based peer configuration display. */ |
7252 | static void bgp_config_write_family(struct vty *vty, struct bgp *bgp, afi_t afi, | |
7253 | safi_t safi) | |
d62a17ae | 7254 | { |
2b791107 DL |
7255 | struct peer *peer; |
7256 | struct peer_group *group; | |
7257 | struct listnode *node, *nnode; | |
d62a17ae | 7258 | |
d62a17ae | 7259 | |
2b791107 | 7260 | vty_frame(vty, " !\n address-family "); |
d62a17ae | 7261 | if (afi == AFI_IP) { |
7262 | if (safi == SAFI_UNICAST) | |
2b791107 | 7263 | vty_frame(vty, "ipv4 unicast"); |
d62a17ae | 7264 | else if (safi == SAFI_LABELED_UNICAST) |
2b791107 | 7265 | vty_frame(vty, "ipv4 labeled-unicast"); |
d62a17ae | 7266 | else if (safi == SAFI_MULTICAST) |
2b791107 | 7267 | vty_frame(vty, "ipv4 multicast"); |
d62a17ae | 7268 | else if (safi == SAFI_MPLS_VPN) |
2b791107 | 7269 | vty_frame(vty, "ipv4 vpn"); |
d62a17ae | 7270 | else if (safi == SAFI_ENCAP) |
2b791107 | 7271 | vty_frame(vty, "ipv4 encap"); |
7c40bf39 | 7272 | else if (safi == SAFI_FLOWSPEC) |
7273 | vty_frame(vty, "ipv4 flowspec"); | |
d62a17ae | 7274 | } else if (afi == AFI_IP6) { |
7275 | if (safi == SAFI_UNICAST) | |
2b791107 | 7276 | vty_frame(vty, "ipv6 unicast"); |
d62a17ae | 7277 | else if (safi == SAFI_LABELED_UNICAST) |
2b791107 | 7278 | vty_frame(vty, "ipv6 labeled-unicast"); |
d62a17ae | 7279 | else if (safi == SAFI_MULTICAST) |
2b791107 | 7280 | vty_frame(vty, "ipv6 multicast"); |
d62a17ae | 7281 | else if (safi == SAFI_MPLS_VPN) |
2b791107 | 7282 | vty_frame(vty, "ipv6 vpn"); |
d62a17ae | 7283 | else if (safi == SAFI_ENCAP) |
2b791107 | 7284 | vty_frame(vty, "ipv6 encap"); |
7c40bf39 | 7285 | else if (safi == SAFI_FLOWSPEC) |
7286 | vty_frame(vty, "ipv6 flowspec"); | |
d62a17ae | 7287 | } else if (afi == AFI_L2VPN) { |
7288 | if (safi == SAFI_EVPN) | |
2b791107 | 7289 | vty_frame(vty, "l2vpn evpn"); |
d62a17ae | 7290 | } |
2b791107 | 7291 | vty_frame(vty, "\n"); |
718e3744 | 7292 | |
2b791107 | 7293 | bgp_config_write_distance(vty, bgp, afi, safi); |
718e3744 | 7294 | |
2b791107 | 7295 | bgp_config_write_network(vty, bgp, afi, safi); |
734b349e | 7296 | |
2b791107 | 7297 | bgp_config_write_redistribute(vty, bgp, afi, safi); |
718e3744 | 7298 | |
d62a17ae | 7299 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) |
2b791107 | 7300 | bgp_config_write_peer_af(vty, bgp, group->conf, afi, safi); |
400b1fad | 7301 | |
d62a17ae | 7302 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { |
7303 | /* Skip dynamic neighbors. */ | |
7304 | if (peer_dynamic_neighbor(peer)) | |
7305 | continue; | |
f14e6fdb | 7306 | |
d62a17ae | 7307 | /* Do not display doppelganger peers */ |
7308 | if (CHECK_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE)) | |
2b791107 | 7309 | bgp_config_write_peer_af(vty, bgp, peer, afi, safi); |
d62a17ae | 7310 | } |
165b5fff | 7311 | |
2b791107 DL |
7312 | bgp_config_write_maxpaths(vty, bgp, afi, safi); |
7313 | bgp_config_write_table_map(vty, bgp, afi, safi); | |
165b5fff | 7314 | |
d62a17ae | 7315 | if (safi == SAFI_EVPN) |
2b791107 | 7316 | bgp_config_write_evpn_info(vty, bgp, afi, safi); |
718e3744 | 7317 | |
4762c213 PG |
7318 | if (safi == SAFI_FLOWSPEC) |
7319 | bgp_fs_config_write_pbr(vty, bgp, afi, safi); | |
7320 | ||
b9c7bc5a PZ |
7321 | if (safi == SAFI_UNICAST) { |
7322 | bgp_vpn_policy_config_write_afi(vty, bgp, afi); | |
7323 | if (CHECK_FLAG(bgp->af_flags[afi][safi], | |
7324 | BGP_CONFIG_VRF_TO_MPLSVPN_EXPORT)) { | |
ddb5b488 | 7325 | |
b9c7bc5a PZ |
7326 | vty_out(vty, " export vpn\n"); |
7327 | } | |
7328 | if (CHECK_FLAG(bgp->af_flags[afi][safi], | |
7329 | BGP_CONFIG_MPLSVPN_TO_VRF_IMPORT)) { | |
7330 | ||
7331 | vty_out(vty, " import vpn\n"); | |
7332 | } | |
12a844a5 DS |
7333 | if (CHECK_FLAG(bgp->af_flags[afi][safi], |
7334 | BGP_CONFIG_VRF_TO_VRF_IMPORT)) { | |
7335 | struct listnode *node; | |
7336 | char *name; | |
7337 | ||
7338 | for (ALL_LIST_ELEMENTS_RO( | |
7339 | bgp->vpn_policy[afi].import_vrf, node, | |
7340 | name)) | |
7341 | vty_out(vty, " import vrf %s\n", name); | |
7342 | } | |
ddb5b488 PZ |
7343 | } |
7344 | ||
2b791107 | 7345 | vty_endframe(vty, " exit-address-family\n"); |
718e3744 | 7346 | } |
7347 | ||
47cbc09b | 7348 | /* clang-format off */ |
ec4f0750 | 7349 | #if CONFDATE > 20190517 |
47cbc09b PM |
7350 | CPP_NOTICE("bgpd: remove 'bgp enforce-first-as' config migration from bgp_config_write") |
7351 | #endif | |
7352 | /* clang-format on */ | |
7353 | ||
d62a17ae | 7354 | int bgp_config_write(struct vty *vty) |
718e3744 | 7355 | { |
d62a17ae | 7356 | int write = 0; |
7357 | struct bgp *bgp; | |
7358 | struct peer_group *group; | |
7359 | struct peer *peer; | |
7360 | struct listnode *node, *nnode; | |
7361 | struct listnode *mnode, *mnnode; | |
718e3744 | 7362 | |
d62a17ae | 7363 | /* BGP Multiple instance. */ |
7364 | if (!bgp_option_check(BGP_OPT_MULTIPLE_INSTANCE)) { | |
7365 | vty_out(vty, "no bgp multiple-instance\n"); | |
7366 | write++; | |
7367 | } | |
718e3744 | 7368 | |
d62a17ae | 7369 | /* BGP Config type. */ |
7370 | if (bgp_option_check(BGP_OPT_CONFIG_CISCO)) { | |
7371 | vty_out(vty, "bgp config-type cisco\n"); | |
7372 | write++; | |
7373 | } | |
718e3744 | 7374 | |
d62a17ae | 7375 | if (bm->rmap_update_timer != RMAP_DEFAULT_UPDATE_TIMER) |
7376 | vty_out(vty, "bgp route-map delay-timer %u\n", | |
7377 | bm->rmap_update_timer); | |
7378 | ||
2b791107 DL |
7379 | if (write) |
7380 | vty_out(vty, "!\n"); | |
7381 | ||
d62a17ae | 7382 | /* BGP configuration. */ |
7383 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) { | |
0b5131c9 MK |
7384 | |
7385 | /* skip all auto created vrf as they dont have user config */ | |
7386 | if (CHECK_FLAG(bgp->vrf_flags, BGP_VRF_AUTO)) | |
7387 | continue; | |
7388 | ||
47cbc09b PM |
7389 | /* Migrate deprecated 'bgp enforce-first-as' |
7390 | * config to 'neighbor * enforce-first-as' configs | |
7391 | */ | |
7392 | if (bgp_flag_check(bgp, BGP_FLAG_ENFORCE_FIRST_AS)) { | |
7393 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
7394 | peer_flag_set(peer, PEER_FLAG_ENFORCE_FIRST_AS); | |
7395 | bgp_flag_unset(bgp, BGP_FLAG_ENFORCE_FIRST_AS); | |
7396 | } | |
7397 | ||
d62a17ae | 7398 | /* Router bgp ASN */ |
7399 | vty_out(vty, "router bgp %u", bgp->as); | |
7400 | ||
7401 | if (bgp_option_check(BGP_OPT_MULTIPLE_INSTANCE)) { | |
7402 | if (bgp->name) | |
7403 | vty_out(vty, " %s %s", | |
7404 | (bgp->inst_type | |
7405 | == BGP_INSTANCE_TYPE_VIEW) | |
7406 | ? "view" | |
7407 | : "vrf", | |
7408 | bgp->name); | |
7409 | } | |
7410 | vty_out(vty, "\n"); | |
7411 | ||
7412 | /* No Synchronization */ | |
7413 | if (bgp_option_check(BGP_OPT_CONFIG_CISCO)) | |
7414 | vty_out(vty, " no synchronization\n"); | |
7415 | ||
7416 | /* BGP fast-external-failover. */ | |
7417 | if (CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) | |
7418 | vty_out(vty, " no bgp fast-external-failover\n"); | |
7419 | ||
7420 | /* BGP router ID. */ | |
7421 | if (bgp->router_id_static.s_addr != 0) | |
7422 | vty_out(vty, " bgp router-id %s\n", | |
7423 | inet_ntoa(bgp->router_id_static)); | |
7424 | ||
7425 | /* BGP log-neighbor-changes. */ | |
7426 | if (!!bgp_flag_check(bgp, BGP_FLAG_LOG_NEIGHBOR_CHANGES) | |
7427 | != DFLT_BGP_LOG_NEIGHBOR_CHANGES) | |
7428 | vty_out(vty, " %sbgp log-neighbor-changes\n", | |
7429 | bgp_flag_check(bgp, | |
7430 | BGP_FLAG_LOG_NEIGHBOR_CHANGES) | |
7431 | ? "" | |
7432 | : "no "); | |
7433 | ||
7434 | /* BGP configuration. */ | |
7435 | if (bgp_flag_check(bgp, BGP_FLAG_ALWAYS_COMPARE_MED)) | |
7436 | vty_out(vty, " bgp always-compare-med\n"); | |
7437 | ||
7438 | /* BGP default ipv4-unicast. */ | |
7439 | if (bgp_flag_check(bgp, BGP_FLAG_NO_DEFAULT_IPV4)) | |
7440 | vty_out(vty, " no bgp default ipv4-unicast\n"); | |
7441 | ||
7442 | /* BGP default local-preference. */ | |
7443 | if (bgp->default_local_pref != BGP_DEFAULT_LOCAL_PREF) | |
7444 | vty_out(vty, " bgp default local-preference %u\n", | |
7445 | bgp->default_local_pref); | |
7446 | ||
7447 | /* BGP default show-hostname */ | |
7448 | if (!!bgp_flag_check(bgp, BGP_FLAG_SHOW_HOSTNAME) | |
7449 | != DFLT_BGP_SHOW_HOSTNAME) | |
7450 | vty_out(vty, " %sbgp default show-hostname\n", | |
7451 | bgp_flag_check(bgp, BGP_FLAG_SHOW_HOSTNAME) | |
7452 | ? "" | |
7453 | : "no "); | |
7454 | ||
7455 | /* BGP default subgroup-pkt-queue-max. */ | |
7456 | if (bgp->default_subgroup_pkt_queue_max | |
7457 | != BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX) | |
7458 | vty_out(vty, " bgp default subgroup-pkt-queue-max %u\n", | |
7459 | bgp->default_subgroup_pkt_queue_max); | |
7460 | ||
7461 | /* BGP client-to-client reflection. */ | |
7462 | if (bgp_flag_check(bgp, BGP_FLAG_NO_CLIENT_TO_CLIENT)) | |
7463 | vty_out(vty, " no bgp client-to-client reflection\n"); | |
7464 | ||
7465 | /* BGP cluster ID. */ | |
7466 | if (CHECK_FLAG(bgp->config, BGP_CONFIG_CLUSTER_ID)) | |
7467 | vty_out(vty, " bgp cluster-id %s\n", | |
7468 | inet_ntoa(bgp->cluster_id)); | |
7469 | ||
7470 | /* Disable ebgp connected nexthop check */ | |
7471 | if (bgp_flag_check(bgp, BGP_FLAG_DISABLE_NH_CONNECTED_CHK)) | |
7472 | vty_out(vty, | |
7473 | " bgp disable-ebgp-connected-route-check\n"); | |
7474 | ||
7475 | /* Confederation identifier*/ | |
7476 | if (CHECK_FLAG(bgp->config, BGP_CONFIG_CONFEDERATION)) | |
7477 | vty_out(vty, " bgp confederation identifier %i\n", | |
7478 | bgp->confed_id); | |
7479 | ||
7480 | /* Confederation peer */ | |
7481 | if (bgp->confed_peers_cnt > 0) { | |
7482 | int i; | |
7483 | ||
7484 | vty_out(vty, " bgp confederation peers"); | |
7485 | ||
7486 | for (i = 0; i < bgp->confed_peers_cnt; i++) | |
7487 | vty_out(vty, " %u", bgp->confed_peers[i]); | |
7488 | ||
7489 | vty_out(vty, "\n"); | |
7490 | } | |
5fe9f963 | 7491 | |
d62a17ae | 7492 | /* BGP deterministic-med. */ |
7493 | if (!!bgp_flag_check(bgp, BGP_FLAG_DETERMINISTIC_MED) | |
7494 | != DFLT_BGP_DETERMINISTIC_MED) | |
7495 | vty_out(vty, " %sbgp deterministic-med\n", | |
7496 | bgp_flag_check(bgp, BGP_FLAG_DETERMINISTIC_MED) | |
7497 | ? "" | |
7498 | : "no "); | |
7499 | ||
7500 | /* BGP update-delay. */ | |
7501 | bgp_config_write_update_delay(vty, bgp); | |
7502 | ||
7503 | if (bgp->v_maxmed_onstartup | |
7504 | != BGP_MAXMED_ONSTARTUP_UNCONFIGURED) { | |
7505 | vty_out(vty, " bgp max-med on-startup %u", | |
7506 | bgp->v_maxmed_onstartup); | |
7507 | if (bgp->maxmed_onstartup_value | |
7508 | != BGP_MAXMED_VALUE_DEFAULT) | |
7509 | vty_out(vty, " %u", | |
7510 | bgp->maxmed_onstartup_value); | |
7511 | vty_out(vty, "\n"); | |
7512 | } | |
7513 | if (bgp->v_maxmed_admin != BGP_MAXMED_ADMIN_UNCONFIGURED) { | |
7514 | vty_out(vty, " bgp max-med administrative"); | |
7515 | if (bgp->maxmed_admin_value != BGP_MAXMED_VALUE_DEFAULT) | |
7516 | vty_out(vty, " %u", bgp->maxmed_admin_value); | |
7517 | vty_out(vty, "\n"); | |
7518 | } | |
718e3744 | 7519 | |
d62a17ae | 7520 | /* write quanta */ |
7521 | bgp_config_write_wpkt_quanta(vty, bgp); | |
555e09d4 QY |
7522 | /* read quanta */ |
7523 | bgp_config_write_rpkt_quanta(vty, bgp); | |
d62a17ae | 7524 | |
7525 | /* coalesce time */ | |
7526 | bgp_config_write_coalesce_time(vty, bgp); | |
7527 | ||
7528 | /* BGP graceful-restart. */ | |
7529 | if (bgp->stalepath_time != BGP_DEFAULT_STALEPATH_TIME) | |
7530 | vty_out(vty, | |
7531 | " bgp graceful-restart stalepath-time %u\n", | |
7532 | bgp->stalepath_time); | |
7533 | if (bgp->restart_time != BGP_DEFAULT_RESTART_TIME) | |
7534 | vty_out(vty, " bgp graceful-restart restart-time %u\n", | |
7535 | bgp->restart_time); | |
7536 | if (bgp_flag_check(bgp, BGP_FLAG_GRACEFUL_RESTART)) | |
7537 | vty_out(vty, " bgp graceful-restart\n"); | |
7538 | ||
7f323236 DW |
7539 | /* BGP graceful-shutdown */ |
7540 | if (bgp_flag_check(bgp, BGP_FLAG_GRACEFUL_SHUTDOWN)) | |
7541 | vty_out(vty, " bgp graceful-shutdown\n"); | |
7542 | ||
d62a17ae | 7543 | /* BGP graceful-restart Preserve State F bit. */ |
7544 | if (bgp_flag_check(bgp, BGP_FLAG_GR_PRESERVE_FWD)) | |
7545 | vty_out(vty, | |
7546 | " bgp graceful-restart preserve-fw-state\n"); | |
7547 | ||
7548 | /* BGP bestpath method. */ | |
7549 | if (bgp_flag_check(bgp, BGP_FLAG_ASPATH_IGNORE)) | |
7550 | vty_out(vty, " bgp bestpath as-path ignore\n"); | |
7551 | if (bgp_flag_check(bgp, BGP_FLAG_ASPATH_CONFED)) | |
7552 | vty_out(vty, " bgp bestpath as-path confed\n"); | |
7553 | ||
7554 | if (bgp_flag_check(bgp, BGP_FLAG_ASPATH_MULTIPATH_RELAX)) { | |
7555 | if (bgp_flag_check(bgp, | |
7556 | BGP_FLAG_MULTIPATH_RELAX_AS_SET)) { | |
7557 | vty_out(vty, | |
7558 | " bgp bestpath as-path multipath-relax as-set\n"); | |
7559 | } else { | |
7560 | vty_out(vty, | |
7561 | " bgp bestpath as-path multipath-relax\n"); | |
7562 | } | |
7563 | } | |
718e3744 | 7564 | |
d62a17ae | 7565 | if (bgp_flag_check(bgp, BGP_FLAG_RR_ALLOW_OUTBOUND_POLICY)) { |
7566 | vty_out(vty, | |
7567 | " bgp route-reflector allow-outbound-policy\n"); | |
7568 | } | |
7569 | if (bgp_flag_check(bgp, BGP_FLAG_COMPARE_ROUTER_ID)) | |
7570 | vty_out(vty, " bgp bestpath compare-routerid\n"); | |
7571 | if (bgp_flag_check(bgp, BGP_FLAG_MED_CONFED) | |
7572 | || bgp_flag_check(bgp, BGP_FLAG_MED_MISSING_AS_WORST)) { | |
7573 | vty_out(vty, " bgp bestpath med"); | |
7574 | if (bgp_flag_check(bgp, BGP_FLAG_MED_CONFED)) | |
7575 | vty_out(vty, " confed"); | |
7576 | if (bgp_flag_check(bgp, BGP_FLAG_MED_MISSING_AS_WORST)) | |
7577 | vty_out(vty, " missing-as-worst"); | |
7578 | vty_out(vty, "\n"); | |
7579 | } | |
718e3744 | 7580 | |
d62a17ae | 7581 | /* BGP network import check. */ |
7582 | if (!!bgp_flag_check(bgp, BGP_FLAG_IMPORT_CHECK) | |
7583 | != DFLT_BGP_IMPORT_CHECK) | |
7584 | vty_out(vty, " %sbgp network import-check\n", | |
7585 | bgp_flag_check(bgp, BGP_FLAG_IMPORT_CHECK) | |
7586 | ? "" | |
7587 | : "no "); | |
7588 | ||
7589 | /* BGP flag dampening. */ | |
7590 | if (CHECK_FLAG(bgp->af_flags[AFI_IP][SAFI_UNICAST], | |
7591 | BGP_CONFIG_DAMPENING)) | |
7592 | bgp_config_write_damp(vty); | |
7593 | ||
7594 | /* BGP timers configuration. */ | |
7595 | if (bgp->default_keepalive != BGP_DEFAULT_KEEPALIVE | |
7596 | && bgp->default_holdtime != BGP_DEFAULT_HOLDTIME) | |
7597 | vty_out(vty, " timers bgp %u %u\n", | |
7598 | bgp->default_keepalive, bgp->default_holdtime); | |
7599 | ||
7600 | /* peer-group */ | |
7601 | for (ALL_LIST_ELEMENTS(bgp->group, node, nnode, group)) { | |
7602 | bgp_config_write_peer_global(vty, bgp, group->conf); | |
7603 | } | |
7604 | ||
7605 | /* Normal neighbor configuration. */ | |
7606 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
7607 | if (CHECK_FLAG(peer->flags, PEER_FLAG_CONFIG_NODE)) | |
7608 | bgp_config_write_peer_global(vty, bgp, peer); | |
7609 | } | |
718e3744 | 7610 | |
d62a17ae | 7611 | /* listen range and limit for dynamic BGP neighbors */ |
7612 | bgp_config_write_listen(vty, bgp); | |
f14e6fdb | 7613 | |
76af525b PM |
7614 | /* |
7615 | * BGP default autoshutdown neighbors | |
7616 | * | |
7617 | * This must be placed after any peer and peer-group | |
7618 | * configuration, to avoid setting all peers to shutdown after | |
7619 | * a daemon restart, which is undesired behavior. (see #2286) | |
7620 | */ | |
7621 | if (bgp->autoshutdown) | |
7622 | vty_out(vty, " bgp default shutdown\n"); | |
7623 | ||
d62a17ae | 7624 | /* No auto-summary */ |
7625 | if (bgp_option_check(BGP_OPT_CONFIG_CISCO)) | |
7626 | vty_out(vty, " no auto-summary\n"); | |
718e3744 | 7627 | |
d62a17ae | 7628 | /* IPv4 unicast configuration. */ |
2b791107 | 7629 | bgp_config_write_family(vty, bgp, AFI_IP, SAFI_UNICAST); |
0b960b4d | 7630 | |
d62a17ae | 7631 | /* IPv4 multicast configuration. */ |
2b791107 | 7632 | bgp_config_write_family(vty, bgp, AFI_IP, SAFI_MULTICAST); |
718e3744 | 7633 | |
d62a17ae | 7634 | /* IPv4 labeled-unicast configuration. */ |
2b791107 | 7635 | bgp_config_write_family(vty, bgp, AFI_IP, SAFI_LABELED_UNICAST); |
f51bae9c | 7636 | |
d62a17ae | 7637 | /* IPv4 VPN configuration. */ |
2b791107 | 7638 | bgp_config_write_family(vty, bgp, AFI_IP, SAFI_MPLS_VPN); |
718e3744 | 7639 | |
d62a17ae | 7640 | /* ENCAPv4 configuration. */ |
2b791107 | 7641 | bgp_config_write_family(vty, bgp, AFI_IP, SAFI_ENCAP); |
8b1fb8be | 7642 | |
7c40bf39 | 7643 | /* FLOWSPEC v4 configuration. */ |
7644 | bgp_config_write_family(vty, bgp, AFI_IP, SAFI_FLOWSPEC); | |
7645 | ||
d62a17ae | 7646 | /* IPv6 unicast configuration. */ |
2b791107 | 7647 | bgp_config_write_family(vty, bgp, AFI_IP6, SAFI_UNICAST); |
718e3744 | 7648 | |
d62a17ae | 7649 | /* IPv6 multicast configuration. */ |
2b791107 | 7650 | bgp_config_write_family(vty, bgp, AFI_IP6, SAFI_MULTICAST); |
37a217a5 | 7651 | |
d62a17ae | 7652 | /* IPv6 labeled-unicast configuration. */ |
2b791107 DL |
7653 | bgp_config_write_family(vty, bgp, AFI_IP6, |
7654 | SAFI_LABELED_UNICAST); | |
f51bae9c | 7655 | |
d62a17ae | 7656 | /* IPv6 VPN configuration. */ |
2b791107 | 7657 | bgp_config_write_family(vty, bgp, AFI_IP6, SAFI_MPLS_VPN); |
8ecd3266 | 7658 | |
d62a17ae | 7659 | /* ENCAPv6 configuration. */ |
2b791107 | 7660 | bgp_config_write_family(vty, bgp, AFI_IP6, SAFI_ENCAP); |
8b1fb8be | 7661 | |
7c40bf39 | 7662 | /* FLOWSPEC v6 configuration. */ |
7663 | bgp_config_write_family(vty, bgp, AFI_IP6, SAFI_FLOWSPEC); | |
7664 | ||
d62a17ae | 7665 | /* EVPN configuration. */ |
2b791107 | 7666 | bgp_config_write_family(vty, bgp, AFI_L2VPN, SAFI_EVPN); |
3d6c0dfa | 7667 | |
65efcfce | 7668 | #if ENABLE_BGP_VNC |
2b791107 | 7669 | bgp_rfapi_cfg_write(vty, bgp); |
65efcfce LB |
7670 | #endif |
7671 | ||
2b791107 | 7672 | vty_out(vty, "!\n"); |
d62a17ae | 7673 | } |
2b791107 | 7674 | return 0; |
718e3744 | 7675 | } |
7676 | ||
d62a17ae | 7677 | void bgp_master_init(struct thread_master *master) |
718e3744 | 7678 | { |
d62a17ae | 7679 | qobj_init(); |
0e64d123 | 7680 | |
d62a17ae | 7681 | memset(&bgp_master, 0, sizeof(struct bgp_master)); |
718e3744 | 7682 | |
d62a17ae | 7683 | bm = &bgp_master; |
7684 | bm->bgp = list_new(); | |
7685 | bm->listen_sockets = list_new(); | |
7686 | bm->port = BGP_PORT_DEFAULT; | |
7687 | bm->master = master; | |
7688 | bm->start_time = bgp_clock(); | |
7689 | bm->t_rmap_update = NULL; | |
7690 | bm->rmap_update_timer = RMAP_DEFAULT_UPDATE_TIMER; | |
97b4a0ec | 7691 | bm->terminating = false; |
495f0b13 | 7692 | |
d62a17ae | 7693 | bgp_process_queue_init(); |
b8fd6a15 | 7694 | |
e9eb5f63 | 7695 | /* init the rd id space. |
7696 | assign 0th index in the bitfield, | |
523cafc4 | 7697 | so that we start with id 1 |
7698 | */ | |
e9eb5f63 | 7699 | bf_init(bm->rd_idspace, UINT16_MAX); |
7700 | bf_assign_zero_index(bm->rd_idspace); | |
7701 | ||
d62a17ae | 7702 | /* Enable multiple instances by default. */ |
7703 | bgp_option_set(BGP_OPT_MULTIPLE_INSTANCE); | |
19df7279 | 7704 | |
955bfd98 | 7705 | /* mpls label dynamic allocation pool */ |
e70e9f8e | 7706 | bgp_lp_init(bm->master, &bm->labelpool); |
955bfd98 | 7707 | |
d62a17ae | 7708 | QOBJ_REG(bm, bgp_master); |
718e3744 | 7709 | } |
200df115 | 7710 | |
ad4cbda1 | 7711 | /* |
009b18fc | 7712 | * Free up connected routes and interfaces for a BGP instance. Invoked upon |
7713 | * instance delete (non-default only) or BGP exit. | |
ad4cbda1 | 7714 | */ |
d62a17ae | 7715 | static void bgp_if_finish(struct bgp *bgp) |
ad4cbda1 | 7716 | { |
f4e14fdb | 7717 | struct vrf *vrf = vrf_lookup_by_id(bgp->vrf_id); |
d62a17ae | 7718 | struct interface *ifp; |
7719 | ||
f4e14fdb | 7720 | if (bgp->inst_type == BGP_INSTANCE_TYPE_VIEW || !vrf) |
d62a17ae | 7721 | return; |
ad4cbda1 | 7722 | |
451fda4f | 7723 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 7724 | struct listnode *c_node, *c_nnode; |
7725 | struct connected *c; | |
ad4cbda1 | 7726 | |
d62a17ae | 7727 | for (ALL_LIST_ELEMENTS(ifp->connected, c_node, c_nnode, c)) |
7728 | bgp_connected_delete(bgp, c); | |
7729 | } | |
ad4cbda1 | 7730 | } |
6b0655a2 | 7731 | |
d62a17ae | 7732 | static void bgp_viewvrf_autocomplete(vector comps, struct cmd_token *token) |
18c57037 | 7733 | { |
d62a17ae | 7734 | struct vrf *vrf = NULL; |
7735 | struct listnode *next; | |
7736 | struct bgp *bgp; | |
18c57037 | 7737 | |
a2addae8 | 7738 | RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) { |
d62a17ae | 7739 | if (vrf->vrf_id != VRF_DEFAULT) |
7740 | vector_set(comps, XSTRDUP(MTYPE_COMPLETION, vrf->name)); | |
7741 | } | |
18c57037 | 7742 | |
d62a17ae | 7743 | for (ALL_LIST_ELEMENTS_RO(bm->bgp, next, bgp)) { |
7744 | if (bgp->inst_type != BGP_INSTANCE_TYPE_VIEW) | |
7745 | continue; | |
18c57037 | 7746 | |
d62a17ae | 7747 | vector_set(comps, XSTRDUP(MTYPE_COMPLETION, bgp->name)); |
7748 | } | |
18c57037 DS |
7749 | } |
7750 | ||
7751 | static const struct cmd_variable_handler bgp_viewvrf_var_handlers[] = { | |
d62a17ae | 7752 | {.tokenname = "VIEWVRFNAME", .completions = bgp_viewvrf_autocomplete}, |
7753 | {.completions = NULL}, | |
18c57037 DS |
7754 | }; |
7755 | ||
da22432d | 7756 | static void bgp_pthreads_init() |
2d4ee774 | 7757 | { |
0ca8b79f QY |
7758 | frr_pthread_init(); |
7759 | ||
a715eab3 QY |
7760 | struct frr_pthread_attr io = { |
7761 | .id = PTHREAD_IO, | |
7762 | .start = frr_pthread_attr_default.start, | |
7763 | .stop = frr_pthread_attr_default.stop, | |
a715eab3 QY |
7764 | }; |
7765 | struct frr_pthread_attr ka = { | |
7766 | .id = PTHREAD_KEEPALIVES, | |
7767 | .start = bgp_keepalives_start, | |
7768 | .stop = bgp_keepalives_stop, | |
a715eab3 | 7769 | }; |
d8a8a8de QY |
7770 | frr_pthread_new(&io, "BGP I/O thread"); |
7771 | frr_pthread_new(&ka, "BGP Keepalives thread"); | |
419dfe6a QY |
7772 | } |
7773 | ||
7774 | void bgp_pthreads_run() | |
7775 | { | |
a715eab3 QY |
7776 | struct frr_pthread *io = frr_pthread_get(PTHREAD_IO); |
7777 | struct frr_pthread *ka = frr_pthread_get(PTHREAD_KEEPALIVES); | |
424ab01d | 7778 | |
a715eab3 QY |
7779 | frr_pthread_run(io, NULL); |
7780 | frr_pthread_run(ka, NULL); | |
88b24dee | 7781 | |
a715eab3 QY |
7782 | /* Wait until threads are ready. */ |
7783 | frr_pthread_wait_running(io); | |
7784 | frr_pthread_wait_running(ka); | |
2d4ee774 QY |
7785 | } |
7786 | ||
7787 | void bgp_pthreads_finish() | |
7788 | { | |
0ca8b79f QY |
7789 | frr_pthread_stop_all(); |
7790 | frr_pthread_finish(); | |
2d4ee774 QY |
7791 | } |
7792 | ||
d62a17ae | 7793 | void bgp_init(void) |
718e3744 | 7794 | { |
fc9a856f | 7795 | |
d62a17ae | 7796 | /* allocates some vital data structures used by peer commands in |
7797 | * vty_init */ | |
718e3744 | 7798 | |
419dfe6a QY |
7799 | /* pre-init pthreads */ |
7800 | bgp_pthreads_init(); | |
7801 | ||
d62a17ae | 7802 | /* Init zebra. */ |
7803 | bgp_zebra_init(bm->master); | |
718e3744 | 7804 | |
65efcfce | 7805 | #if ENABLE_BGP_VNC |
d62a17ae | 7806 | vnc_zebra_init(bm->master); |
65efcfce LB |
7807 | #endif |
7808 | ||
d62a17ae | 7809 | /* BGP VTY commands installation. */ |
7810 | bgp_vty_init(); | |
7811 | ||
7812 | /* BGP inits. */ | |
7813 | bgp_attr_init(); | |
7814 | bgp_debug_init(); | |
7815 | bgp_dump_init(); | |
7816 | bgp_route_init(); | |
7817 | bgp_route_map_init(); | |
7818 | bgp_scan_vty_init(); | |
7819 | bgp_mplsvpn_init(); | |
65efcfce | 7820 | #if ENABLE_BGP_VNC |
d62a17ae | 7821 | rfapi_init(); |
65efcfce | 7822 | #endif |
d62a17ae | 7823 | bgp_ethernetvpn_init(); |
7c40bf39 | 7824 | bgp_flowspec_vty_init(); |
d62a17ae | 7825 | |
7826 | /* Access list initialize. */ | |
7827 | access_list_init(); | |
7828 | access_list_add_hook(peer_distribute_update); | |
7829 | access_list_delete_hook(peer_distribute_update); | |
7830 | ||
7831 | /* Filter list initialize. */ | |
7832 | bgp_filter_init(); | |
7833 | as_list_add_hook(peer_aslist_add); | |
7834 | as_list_delete_hook(peer_aslist_del); | |
7835 | ||
7836 | /* Prefix list initialize.*/ | |
7837 | prefix_list_init(); | |
7838 | prefix_list_add_hook(peer_prefix_list_update); | |
7839 | prefix_list_delete_hook(peer_prefix_list_update); | |
7840 | ||
7841 | /* Community list initialize. */ | |
7842 | bgp_clist = community_list_init(); | |
7843 | ||
7844 | /* BFD init */ | |
7845 | bgp_bfd_init(); | |
7846 | ||
7847 | cmd_variable_handler_register(bgp_viewvrf_var_handlers); | |
7848 | } | |
7849 | ||
7850 | void bgp_terminate(void) | |
7851 | { | |
7852 | struct bgp *bgp; | |
7853 | struct peer *peer; | |
7854 | struct listnode *node, *nnode; | |
7855 | struct listnode *mnode, *mnnode; | |
7856 | ||
7857 | QOBJ_UNREG(bm); | |
7858 | ||
7859 | /* Close the listener sockets first as this prevents peers from | |
7860 | * attempting | |
7861 | * to reconnect on receiving the peer unconfig message. In the presence | |
7862 | * of a large number of peers this will ensure that no peer is left with | |
7863 | * a dangling connection | |
7864 | */ | |
7865 | /* reverse bgp_master_init */ | |
7866 | bgp_close(); | |
c3004bc4 | 7867 | |
d62a17ae | 7868 | if (bm->listen_sockets) |
acdf5e25 | 7869 | list_delete_and_null(&bm->listen_sockets); |
d62a17ae | 7870 | |
7871 | for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp)) | |
7872 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) | |
7873 | if (peer->status == Established | |
7874 | || peer->status == OpenSent | |
7875 | || peer->status == OpenConfirm) | |
7876 | bgp_notify_send(peer, BGP_NOTIFY_CEASE, | |
7877 | BGP_NOTIFY_CEASE_PEER_UNCONFIG); | |
7878 | ||
e208c8f9 DS |
7879 | if (bm->process_main_queue) |
7880 | work_queue_free_and_null(&bm->process_main_queue); | |
d62a17ae | 7881 | |
7882 | if (bm->t_rmap_update) | |
7883 | BGP_TIMER_OFF(bm->t_rmap_update); | |
955bfd98 | 7884 | |
e70e9f8e | 7885 | bgp_lp_finish(); |
545acafb | 7886 | } |