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