1 /* BGP-4, BGP-4+ daemon program
2 * Copyright (C) 1996, 97, 98, 99, 2000 Kunihiro Ishiguro
4 * This file is part of GNU Zebra.
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
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.
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
29 #include "sockunion.h"
38 #include "workqueue.h"
46 #include "frr_pthread.h"
48 #include "bgpd/bgpd.h"
49 #include "bgpd/bgp_table.h"
50 #include "bgpd/bgp_aspath.h"
51 #include "bgpd/bgp_route.h"
52 #include "bgpd/bgp_dump.h"
53 #include "bgpd/bgp_debug.h"
54 #include "bgpd/bgp_community.h"
55 #include "bgpd/bgp_attr.h"
56 #include "bgpd/bgp_regex.h"
57 #include "bgpd/bgp_clist.h"
58 #include "bgpd/bgp_fsm.h"
59 #include "bgpd/bgp_packet.h"
60 #include "bgpd/bgp_zebra.h"
61 #include "bgpd/bgp_open.h"
62 #include "bgpd/bgp_filter.h"
63 #include "bgpd/bgp_nexthop.h"
64 #include "bgpd/bgp_damp.h"
65 #include "bgpd/bgp_mplsvpn.h"
67 #include "bgpd/rfapi/bgp_rfapi_cfg.h"
68 #include "bgpd/rfapi/rfapi_backend.h"
70 #include "bgpd/bgp_evpn.h"
71 #include "bgpd/bgp_advertise.h"
72 #include "bgpd/bgp_network.h"
73 #include "bgpd/bgp_vty.h"
74 #include "bgpd/bgp_mpath.h"
75 #include "bgpd/bgp_nht.h"
76 #include "bgpd/bgp_updgrp.h"
77 #include "bgpd/bgp_bfd.h"
78 #include "bgpd/bgp_memory.h"
79 #include "bgpd/bgp_evpn_vty.h"
80 #include "bgpd/bgp_keepalives.h"
81 #include "bgpd/bgp_io.h"
82 #include "bgpd/bgp_ecommunity.h"
83 #include "bgpd/bgp_flowspec.h"
86 DEFINE_MTYPE_STATIC(BGPD
, PEER_TX_SHUTDOWN_MSG
, "Peer shutdown message (TX)");
87 DEFINE_QOBJ_TYPE(bgp_master
)
89 DEFINE_QOBJ_TYPE(peer
)
91 /* BGP process wide configuration. */
92 static struct bgp_master bgp_master
;
94 /* BGP process wide configuration pointer to export. */
95 struct bgp_master
*bm
;
97 /* BGP community-list. */
98 struct community_list_handler
*bgp_clist
;
100 unsigned int multipath_num
= MULTIPATH_NUM
;
102 static void bgp_if_finish(struct bgp
*bgp
);
104 extern struct zclient
*zclient
;
106 /* handle main socket creation or deletion */
107 static int bgp_check_main_socket(bool create
, struct bgp
*bgp
)
109 static int bgp_server_main_created
;
110 struct listnode
*bgpnode
, *nbgpnode
;
111 struct bgp
*bgp_temp
;
113 if (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
&&
114 vrf_is_mapped_on_netns(bgp
->vrf_id
))
116 if (create
== true) {
117 if (bgp_server_main_created
)
119 if (bgp_socket(bgp
, bm
->port
, bm
->address
) < 0)
120 return BGP_ERR_INVALID_VALUE
;
121 bgp_server_main_created
= 1;
124 if (!bgp_server_main_created
)
126 /* only delete socket on some cases */
127 for (ALL_LIST_ELEMENTS(bm
->bgp
, bgpnode
, nbgpnode
, bgp_temp
)) {
128 /* do not count with current bgp */
131 /* if other instance non VRF, do not delete socket */
132 if (bgp_temp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)
134 /* vrf lite, do not delete socket */
135 if (!vrf_is_mapped_on_netns(bgp_temp
->vrf_id
))
139 bgp_server_main_created
= 0;
143 void bgp_session_reset(struct peer
*peer
)
145 if (peer
->doppelganger
&& (peer
->doppelganger
->status
!= Deleted
)
146 && !(CHECK_FLAG(peer
->doppelganger
->flags
, PEER_FLAG_CONFIG_NODE
)))
147 peer_delete(peer
->doppelganger
);
149 BGP_EVENT_ADD(peer
, BGP_Stop
);
153 * During session reset, we may delete the doppelganger peer, which would
154 * be the next node to the current node. If the session reset was invoked
155 * during walk of peer list, we would end up accessing the freed next
156 * node. This function moves the next node along.
158 static void bgp_session_reset_safe(struct peer
*peer
, struct listnode
**nnode
)
163 n
= (nnode
) ? *nnode
: NULL
;
164 npeer
= (n
) ? listgetdata(n
) : NULL
;
166 if (peer
->doppelganger
&& (peer
->doppelganger
->status
!= Deleted
)
167 && !(CHECK_FLAG(peer
->doppelganger
->flags
,
168 PEER_FLAG_CONFIG_NODE
))) {
169 if (peer
->doppelganger
== npeer
)
170 /* nnode and *nnode are confirmed to be non-NULL here */
171 *nnode
= (*nnode
)->next
;
172 peer_delete(peer
->doppelganger
);
175 BGP_EVENT_ADD(peer
, BGP_Stop
);
178 /* BGP global flag manipulation. */
179 int bgp_option_set(int flag
)
183 case BGP_OPT_MULTIPLE_INSTANCE
:
184 case BGP_OPT_CONFIG_CISCO
:
185 case BGP_OPT_NO_LISTEN
:
186 SET_FLAG(bm
->options
, flag
);
189 return BGP_ERR_INVALID_FLAG
;
194 int bgp_option_unset(int flag
)
197 case BGP_OPT_MULTIPLE_INSTANCE
:
198 if (listcount(bm
->bgp
) > 1)
199 return BGP_ERR_MULTIPLE_INSTANCE_USED
;
202 case BGP_OPT_CONFIG_CISCO
:
203 UNSET_FLAG(bm
->options
, flag
);
206 return BGP_ERR_INVALID_FLAG
;
211 int bgp_option_check(int flag
)
213 return CHECK_FLAG(bm
->options
, flag
);
216 /* BGP flag manipulation. */
217 int bgp_flag_set(struct bgp
*bgp
, int flag
)
219 SET_FLAG(bgp
->flags
, flag
);
223 int bgp_flag_unset(struct bgp
*bgp
, int flag
)
225 UNSET_FLAG(bgp
->flags
, flag
);
229 int bgp_flag_check(struct bgp
*bgp
, int flag
)
231 return CHECK_FLAG(bgp
->flags
, flag
);
234 /* Internal function to set BGP structure configureation flag. */
235 static void bgp_config_set(struct bgp
*bgp
, int config
)
237 SET_FLAG(bgp
->config
, config
);
240 static void bgp_config_unset(struct bgp
*bgp
, int config
)
242 UNSET_FLAG(bgp
->config
, config
);
245 static int bgp_config_check(struct bgp
*bgp
, int config
)
247 return CHECK_FLAG(bgp
->config
, config
);
250 /* Set BGP router identifier. */
251 static int bgp_router_id_set(struct bgp
*bgp
, const struct in_addr
*id
)
254 struct listnode
*node
, *nnode
;
256 if (IPV4_ADDR_SAME(&bgp
->router_id
, id
))
259 /* EVPN uses router id in RD, withdraw them */
260 if (is_evpn_enabled())
261 bgp_evpn_handle_router_id_update(bgp
, TRUE
);
263 IPV4_ADDR_COPY(&bgp
->router_id
, id
);
265 /* Set all peer's local identifier with this value. */
266 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
267 IPV4_ADDR_COPY(&peer
->local_id
, id
);
269 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
)) {
270 peer
->last_reset
= PEER_DOWN_RID_CHANGE
;
271 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
272 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
276 /* EVPN uses router id in RD, update them */
277 if (is_evpn_enabled())
278 bgp_evpn_handle_router_id_update(bgp
, FALSE
);
283 void bgp_router_id_zebra_bump(vrf_id_t vrf_id
, const struct prefix
*router_id
)
285 struct listnode
*node
, *nnode
;
288 if (vrf_id
== VRF_DEFAULT
) {
289 /* Router-id change for default VRF has to also update all
291 for (ALL_LIST_ELEMENTS(bm
->bgp
, node
, nnode
, bgp
)) {
292 if (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
)
295 bgp
->router_id_zebra
= router_id
->u
.prefix4
;
296 if (!bgp
->router_id_static
.s_addr
)
297 bgp_router_id_set(bgp
, &router_id
->u
.prefix4
);
300 bgp
= bgp_lookup_by_vrf_id(vrf_id
);
302 bgp
->router_id_zebra
= router_id
->u
.prefix4
;
304 if (!bgp
->router_id_static
.s_addr
)
305 bgp_router_id_set(bgp
, &router_id
->u
.prefix4
);
310 int bgp_router_id_static_set(struct bgp
*bgp
, struct in_addr id
)
312 bgp
->router_id_static
= id
;
313 bgp_router_id_set(bgp
, id
.s_addr
? &id
: &bgp
->router_id_zebra
);
317 /* BGP's cluster-id control. */
318 int bgp_cluster_id_set(struct bgp
*bgp
, struct in_addr
*cluster_id
)
321 struct listnode
*node
, *nnode
;
323 if (bgp_config_check(bgp
, BGP_CONFIG_CLUSTER_ID
)
324 && IPV4_ADDR_SAME(&bgp
->cluster_id
, cluster_id
))
327 IPV4_ADDR_COPY(&bgp
->cluster_id
, cluster_id
);
328 bgp_config_set(bgp
, BGP_CONFIG_CLUSTER_ID
);
330 /* Clear all IBGP peer. */
331 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
332 if (peer
->sort
!= BGP_PEER_IBGP
)
335 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
)) {
336 peer
->last_reset
= PEER_DOWN_CLID_CHANGE
;
337 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
338 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
344 int bgp_cluster_id_unset(struct bgp
*bgp
)
347 struct listnode
*node
, *nnode
;
349 if (!bgp_config_check(bgp
, BGP_CONFIG_CLUSTER_ID
))
352 bgp
->cluster_id
.s_addr
= 0;
353 bgp_config_unset(bgp
, BGP_CONFIG_CLUSTER_ID
);
355 /* Clear all IBGP peer. */
356 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
357 if (peer
->sort
!= BGP_PEER_IBGP
)
360 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
)) {
361 peer
->last_reset
= PEER_DOWN_CLID_CHANGE
;
362 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
363 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
369 /* time_t value that is monotonicly increasing
370 * and uneffected by adjustments to system clock
372 time_t bgp_clock(void)
380 /* BGP timer configuration. */
381 int bgp_timers_set(struct bgp
*bgp
, uint32_t keepalive
, uint32_t holdtime
)
383 bgp
->default_keepalive
=
384 (keepalive
< holdtime
/ 3 ? keepalive
: holdtime
/ 3);
385 bgp
->default_holdtime
= holdtime
;
390 int bgp_timers_unset(struct bgp
*bgp
)
392 bgp
->default_keepalive
= BGP_DEFAULT_KEEPALIVE
;
393 bgp
->default_holdtime
= BGP_DEFAULT_HOLDTIME
;
398 /* BGP confederation configuration. */
399 int bgp_confederation_id_set(struct bgp
*bgp
, as_t as
)
402 struct listnode
*node
, *nnode
;
406 return BGP_ERR_INVALID_AS
;
408 /* Remember - were we doing confederation before? */
409 already_confed
= bgp_config_check(bgp
, BGP_CONFIG_CONFEDERATION
);
411 bgp_config_set(bgp
, BGP_CONFIG_CONFEDERATION
);
413 /* If we were doing confederation already, this is just an external
414 AS change. Just Reset EBGP sessions, not CONFED sessions. If we
415 were not doing confederation before, reset all EBGP sessions. */
416 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
417 /* We're looking for peers who's AS is not local or part of our
419 if (already_confed
) {
420 if (peer_sort(peer
) == BGP_PEER_EBGP
) {
422 if (BGP_IS_VALID_STATE_FOR_NOTIF(
425 PEER_DOWN_CONFED_ID_CHANGE
;
427 peer
, BGP_NOTIFY_CEASE
,
428 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
430 bgp_session_reset_safe(peer
, &nnode
);
433 /* Not doign confederation before, so reset every
436 if (peer_sort(peer
) != BGP_PEER_IBGP
) {
437 /* Reset the local_as to be our EBGP one */
438 if (peer_sort(peer
) == BGP_PEER_EBGP
)
440 if (BGP_IS_VALID_STATE_FOR_NOTIF(
443 PEER_DOWN_CONFED_ID_CHANGE
;
445 peer
, BGP_NOTIFY_CEASE
,
446 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
448 bgp_session_reset_safe(peer
, &nnode
);
455 int bgp_confederation_id_unset(struct bgp
*bgp
)
458 struct listnode
*node
, *nnode
;
461 bgp_config_unset(bgp
, BGP_CONFIG_CONFEDERATION
);
463 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
464 /* We're looking for peers who's AS is not local */
465 if (peer_sort(peer
) != BGP_PEER_IBGP
) {
466 peer
->local_as
= bgp
->as
;
467 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
)) {
468 peer
->last_reset
= PEER_DOWN_CONFED_ID_CHANGE
;
469 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
470 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
474 bgp_session_reset_safe(peer
, &nnode
);
480 /* Is an AS part of the confed or not? */
481 int bgp_confederation_peers_check(struct bgp
*bgp
, as_t as
)
488 for (i
= 0; i
< bgp
->confed_peers_cnt
; i
++)
489 if (bgp
->confed_peers
[i
] == as
)
495 /* Add an AS to the confederation set. */
496 int bgp_confederation_peers_add(struct bgp
*bgp
, as_t as
)
499 struct listnode
*node
, *nnode
;
502 return BGP_ERR_INVALID_BGP
;
505 return BGP_ERR_INVALID_AS
;
507 if (bgp_confederation_peers_check(bgp
, as
))
510 if (bgp
->confed_peers
)
512 XREALLOC(MTYPE_BGP_CONFED_LIST
, bgp
->confed_peers
,
513 (bgp
->confed_peers_cnt
+ 1) * sizeof(as_t
));
516 XMALLOC(MTYPE_BGP_CONFED_LIST
,
517 (bgp
->confed_peers_cnt
+ 1) * sizeof(as_t
));
519 bgp
->confed_peers
[bgp
->confed_peers_cnt
] = as
;
520 bgp
->confed_peers_cnt
++;
522 if (bgp_config_check(bgp
, BGP_CONFIG_CONFEDERATION
)) {
523 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
524 if (peer
->as
== as
) {
525 peer
->local_as
= bgp
->as
;
526 if (BGP_IS_VALID_STATE_FOR_NOTIF(
529 PEER_DOWN_CONFED_PEER_CHANGE
;
531 peer
, BGP_NOTIFY_CEASE
,
532 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
534 bgp_session_reset_safe(peer
, &nnode
);
541 /* Delete an AS from the confederation set. */
542 int bgp_confederation_peers_remove(struct bgp
*bgp
, as_t as
)
547 struct listnode
*node
, *nnode
;
552 if (!bgp_confederation_peers_check(bgp
, as
))
555 for (i
= 0; i
< bgp
->confed_peers_cnt
; i
++)
556 if (bgp
->confed_peers
[i
] == as
)
557 for (j
= i
+ 1; j
< bgp
->confed_peers_cnt
; j
++)
558 bgp
->confed_peers
[j
- 1] = bgp
->confed_peers
[j
];
560 bgp
->confed_peers_cnt
--;
562 if (bgp
->confed_peers_cnt
== 0) {
563 if (bgp
->confed_peers
)
564 XFREE(MTYPE_BGP_CONFED_LIST
, bgp
->confed_peers
);
565 bgp
->confed_peers
= NULL
;
568 XREALLOC(MTYPE_BGP_CONFED_LIST
, bgp
->confed_peers
,
569 bgp
->confed_peers_cnt
* sizeof(as_t
));
571 /* Now reset any peer who's remote AS has just been removed from the
573 if (bgp_config_check(bgp
, BGP_CONFIG_CONFEDERATION
)) {
574 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
575 if (peer
->as
== as
) {
576 peer
->local_as
= bgp
->confed_id
;
577 if (BGP_IS_VALID_STATE_FOR_NOTIF(
580 PEER_DOWN_CONFED_PEER_CHANGE
;
582 peer
, BGP_NOTIFY_CEASE
,
583 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
585 bgp_session_reset_safe(peer
, &nnode
);
593 /* Local preference configuration. */
594 int bgp_default_local_preference_set(struct bgp
*bgp
, uint32_t local_pref
)
599 bgp
->default_local_pref
= local_pref
;
604 int bgp_default_local_preference_unset(struct bgp
*bgp
)
609 bgp
->default_local_pref
= BGP_DEFAULT_LOCAL_PREF
;
614 /* Local preference configuration. */
615 int bgp_default_subgroup_pkt_queue_max_set(struct bgp
*bgp
, uint32_t queue_size
)
620 bgp
->default_subgroup_pkt_queue_max
= queue_size
;
625 int bgp_default_subgroup_pkt_queue_max_unset(struct bgp
*bgp
)
629 bgp
->default_subgroup_pkt_queue_max
=
630 BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX
;
635 /* Listen limit configuration. */
636 int bgp_listen_limit_set(struct bgp
*bgp
, int listen_limit
)
641 bgp
->dynamic_neighbors_limit
= listen_limit
;
646 int bgp_listen_limit_unset(struct bgp
*bgp
)
651 bgp
->dynamic_neighbors_limit
= BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT
;
656 int bgp_map_afi_safi_iana2int(iana_afi_t pkt_afi
, iana_safi_t pkt_safi
,
657 afi_t
*afi
, safi_t
*safi
)
659 /* Map from IANA values to internal values, return error if
660 * values are unrecognized.
662 *afi
= afi_iana2int(pkt_afi
);
663 *safi
= safi_iana2int(pkt_safi
);
664 if (*afi
== AFI_MAX
|| *safi
== SAFI_MAX
)
670 int bgp_map_afi_safi_int2iana(afi_t afi
, safi_t safi
, iana_afi_t
*pkt_afi
,
671 iana_safi_t
*pkt_safi
)
673 /* Map from internal values to IANA values, return error if
674 * internal values are bad (unexpected).
676 if (afi
== AFI_MAX
|| safi
== SAFI_MAX
)
678 *pkt_afi
= afi_int2iana(afi
);
679 *pkt_safi
= safi_int2iana(safi
);
683 struct peer_af
*peer_af_create(struct peer
*peer
, afi_t afi
, safi_t safi
)
691 afid
= afindex(afi
, safi
);
692 if (afid
>= BGP_AF_MAX
)
695 assert(peer
->peer_af_array
[afid
] == NULL
);
697 /* Allocate new peer af */
698 af
= XCALLOC(MTYPE_BGP_PEER_AF
, sizeof(struct peer_af
));
701 zlog_err("Could not create af structure for peer %s",
706 peer
->peer_af_array
[afid
] = af
;
715 struct peer_af
*peer_af_find(struct peer
*peer
, afi_t afi
, safi_t safi
)
722 afid
= afindex(afi
, safi
);
723 if (afid
>= BGP_AF_MAX
)
726 return peer
->peer_af_array
[afid
];
729 int peer_af_delete(struct peer
*peer
, afi_t afi
, safi_t safi
)
737 afid
= afindex(afi
, safi
);
738 if (afid
>= BGP_AF_MAX
)
741 af
= peer
->peer_af_array
[afid
];
745 bgp_stop_announce_route_timer(af
);
747 if (PAF_SUBGRP(af
)) {
748 if (BGP_DEBUG(update_groups
, UPDATE_GROUPS
))
749 zlog_debug("u%" PRIu64
":s%" PRIu64
" remove peer %s",
750 af
->subgroup
->update_group
->id
,
751 af
->subgroup
->id
, peer
->host
);
754 update_subgroup_remove_peer(af
->subgroup
, af
);
756 peer
->peer_af_array
[afid
] = NULL
;
757 XFREE(MTYPE_BGP_PEER_AF
, af
);
761 /* Peer comparison function for sorting. */
762 int peer_cmp(struct peer
*p1
, struct peer
*p2
)
764 if (p1
->group
&& !p2
->group
)
767 if (!p1
->group
&& p2
->group
)
770 if (p1
->group
== p2
->group
) {
771 if (p1
->conf_if
&& !p2
->conf_if
)
774 if (!p1
->conf_if
&& p2
->conf_if
)
777 if (p1
->conf_if
&& p2
->conf_if
)
778 return if_cmp_name_func(p1
->conf_if
, p2
->conf_if
);
780 return strcmp(p1
->group
->name
, p2
->group
->name
);
782 return sockunion_cmp(&p1
->su
, &p2
->su
);
785 static unsigned int peer_hash_key_make(void *p
)
787 struct peer
*peer
= p
;
788 return sockunion_hash(&peer
->su
);
791 static int peer_hash_same(const void *p1
, const void *p2
)
793 const struct peer
*peer1
= p1
;
794 const struct peer
*peer2
= p2
;
795 return (sockunion_same(&peer1
->su
, &peer2
->su
)
796 && CHECK_FLAG(peer1
->flags
, PEER_FLAG_CONFIG_NODE
)
797 == CHECK_FLAG(peer2
->flags
, PEER_FLAG_CONFIG_NODE
));
800 int peer_af_flag_check(struct peer
*peer
, afi_t afi
, safi_t safi
, uint32_t flag
)
802 return CHECK_FLAG(peer
->af_flags
[afi
][safi
], flag
);
805 /* Return true if flag is set for the peer but not the peer-group */
806 static int peergroup_af_flag_check(struct peer
*peer
, afi_t afi
, safi_t safi
,
809 struct peer
*g_peer
= NULL
;
811 if (peer_af_flag_check(peer
, afi
, safi
, flag
)) {
812 if (peer_group_active(peer
)) {
813 g_peer
= peer
->group
->conf
;
815 /* If this flag is not set for the peer's peer-group
816 * then return true */
817 if (!peer_af_flag_check(g_peer
, afi
, safi
, flag
)) {
822 /* peer is not in a peer-group but the flag is set to return
832 /* Reset all address family specific configuration. */
833 static void peer_af_flag_reset(struct peer
*peer
, afi_t afi
, safi_t safi
)
836 struct bgp_filter
*filter
;
837 char orf_name
[BUFSIZ
];
839 filter
= &peer
->filter
[afi
][safi
];
841 /* Clear neighbor filter and route-map */
842 for (i
= FILTER_IN
; i
< FILTER_MAX
; i
++) {
843 if (filter
->dlist
[i
].name
) {
844 XFREE(MTYPE_BGP_FILTER_NAME
, filter
->dlist
[i
].name
);
845 filter
->dlist
[i
].name
= NULL
;
847 if (filter
->plist
[i
].name
) {
848 XFREE(MTYPE_BGP_FILTER_NAME
, filter
->plist
[i
].name
);
849 filter
->plist
[i
].name
= NULL
;
851 if (filter
->aslist
[i
].name
) {
852 XFREE(MTYPE_BGP_FILTER_NAME
, filter
->aslist
[i
].name
);
853 filter
->aslist
[i
].name
= NULL
;
856 for (i
= RMAP_IN
; i
< RMAP_MAX
; i
++) {
857 if (filter
->map
[i
].name
) {
858 XFREE(MTYPE_BGP_FILTER_NAME
, filter
->map
[i
].name
);
859 filter
->map
[i
].name
= NULL
;
863 /* Clear unsuppress map. */
864 if (filter
->usmap
.name
)
865 XFREE(MTYPE_BGP_FILTER_NAME
, filter
->usmap
.name
);
866 filter
->usmap
.name
= NULL
;
867 filter
->usmap
.map
= NULL
;
869 /* Clear neighbor's all address family flags. */
870 peer
->af_flags
[afi
][safi
] = 0;
872 /* Clear neighbor's all address family sflags. */
873 peer
->af_sflags
[afi
][safi
] = 0;
875 /* Clear neighbor's all address family capabilities. */
876 peer
->af_cap
[afi
][safi
] = 0;
879 peer
->orf_plist
[afi
][safi
] = NULL
;
880 sprintf(orf_name
, "%s.%d.%d", peer
->host
, afi
, safi
);
881 prefix_bgp_orf_remove_all(afi
, orf_name
);
883 /* Set default neighbor send-community. */
884 if (!bgp_option_check(BGP_OPT_CONFIG_CISCO
)) {
885 SET_FLAG(peer
->af_flags
[afi
][safi
], PEER_FLAG_SEND_COMMUNITY
);
886 SET_FLAG(peer
->af_flags
[afi
][safi
],
887 PEER_FLAG_SEND_EXT_COMMUNITY
);
888 SET_FLAG(peer
->af_flags
[afi
][safi
],
889 PEER_FLAG_SEND_LARGE_COMMUNITY
);
892 /* Clear neighbor default_originate_rmap */
893 if (peer
->default_rmap
[afi
][safi
].name
)
894 XFREE(MTYPE_ROUTE_MAP_NAME
, peer
->default_rmap
[afi
][safi
].name
);
895 peer
->default_rmap
[afi
][safi
].name
= NULL
;
896 peer
->default_rmap
[afi
][safi
].map
= NULL
;
898 /* Clear neighbor maximum-prefix */
899 peer
->pmax
[afi
][safi
] = 0;
900 peer
->pmax_threshold
[afi
][safi
] = MAXIMUM_PREFIX_THRESHOLD_DEFAULT
;
903 /* peer global config reset */
904 static void peer_global_config_reset(struct peer
*peer
)
908 peer
->change_local_as
= 0;
909 peer
->ttl
= (peer_sort(peer
) == BGP_PEER_IBGP
? MAXTTL
: 1);
910 if (peer
->update_source
) {
911 sockunion_free(peer
->update_source
);
912 peer
->update_source
= NULL
;
914 if (peer
->update_if
) {
915 XFREE(MTYPE_PEER_UPDATE_SOURCE
, peer
->update_if
);
916 peer
->update_if
= NULL
;
919 if (peer_sort(peer
) == BGP_PEER_IBGP
)
920 peer
->v_routeadv
= BGP_DEFAULT_IBGP_ROUTEADV
;
922 peer
->v_routeadv
= BGP_DEFAULT_EBGP_ROUTEADV
;
924 /* These are per-peer specific flags and so we must preserve them */
925 saved_flags
|= CHECK_FLAG(peer
->flags
, PEER_FLAG_IFPEER_V6ONLY
);
926 saved_flags
|= CHECK_FLAG(peer
->flags
, PEER_FLAG_SHUTDOWN
);
928 SET_FLAG(peer
->flags
, saved_flags
);
934 peer
->v_connect
= BGP_DEFAULT_CONNECT_RETRY
;
936 /* Reset some other configs back to defaults. */
937 peer
->v_start
= BGP_INIT_START_TIMER
;
938 peer
->password
= NULL
;
939 peer
->local_id
= peer
->bgp
->router_id
;
940 peer
->v_holdtime
= peer
->bgp
->default_holdtime
;
941 peer
->v_keepalive
= peer
->bgp
->default_keepalive
;
943 bfd_info_free(&(peer
->bfd_info
));
945 /* Set back the CONFIG_NODE flag. */
946 SET_FLAG(peer
->flags
, PEER_FLAG_CONFIG_NODE
);
949 /* Check peer's AS number and determines if this peer is IBGP or EBGP */
950 static inline bgp_peer_sort_t
peer_calc_sort(struct peer
*peer
)
957 if (CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
958 if (peer
->as_type
== AS_INTERNAL
)
959 return BGP_PEER_IBGP
;
961 else if (peer
->as_type
== AS_EXTERNAL
)
962 return BGP_PEER_EBGP
;
964 else if (peer
->as_type
== AS_SPECIFIED
&& peer
->as
)
965 return (bgp
->as
== peer
->as
? BGP_PEER_IBGP
970 peer1
= listnode_head(peer
->group
->peer
);
975 return BGP_PEER_INTERNAL
;
979 if (bgp
&& CHECK_FLAG(bgp
->config
, BGP_CONFIG_CONFEDERATION
)) {
980 if (peer
->local_as
== 0)
981 return BGP_PEER_INTERNAL
;
983 if (peer
->local_as
== peer
->as
) {
984 if (bgp
->as
== bgp
->confed_id
) {
985 if (peer
->local_as
== bgp
->as
)
986 return BGP_PEER_IBGP
;
988 return BGP_PEER_EBGP
;
990 if (peer
->local_as
== bgp
->confed_id
)
991 return BGP_PEER_EBGP
;
993 return BGP_PEER_IBGP
;
997 if (bgp_confederation_peers_check(bgp
, peer
->as
))
998 return BGP_PEER_CONFED
;
1000 return BGP_PEER_EBGP
;
1002 if (peer
->as_type
!= AS_SPECIFIED
)
1003 return (peer
->as_type
== AS_INTERNAL
? BGP_PEER_IBGP
1006 return (peer
->local_as
== 0
1008 : peer
->local_as
== peer
->as
? BGP_PEER_IBGP
1013 /* Calculate and cache the peer "sort" */
1014 bgp_peer_sort_t
peer_sort(struct peer
*peer
)
1016 peer
->sort
= peer_calc_sort(peer
);
1020 static void peer_free(struct peer
*peer
)
1022 assert(peer
->status
== Deleted
);
1026 /* this /ought/ to have been done already through bgp_stop earlier,
1027 * but just to be sure..
1029 bgp_timer_set(peer
);
1030 bgp_reads_off(peer
);
1031 bgp_writes_off(peer
);
1032 assert(!peer
->t_write
);
1033 assert(!peer
->t_read
);
1034 BGP_EVENT_FLUSH(peer
);
1036 pthread_mutex_destroy(&peer
->io_mtx
);
1038 /* Free connected nexthop, if present */
1039 if (CHECK_FLAG(peer
->flags
, PEER_FLAG_CONFIG_NODE
)
1040 && !peer_dynamic_neighbor(peer
))
1041 bgp_delete_connected_nexthop(family2afi(peer
->su
.sa
.sa_family
),
1044 XFREE(MTYPE_PEER_TX_SHUTDOWN_MSG
, peer
->tx_shutdown_message
);
1047 XFREE(MTYPE_PEER_DESC
, peer
->desc
);
1051 /* Free allocated host character. */
1053 XFREE(MTYPE_BGP_PEER_HOST
, peer
->host
);
1057 if (peer
->domainname
) {
1058 XFREE(MTYPE_BGP_PEER_HOST
, peer
->domainname
);
1059 peer
->domainname
= NULL
;
1063 XFREE(MTYPE_BGP_PEER_IFNAME
, peer
->ifname
);
1064 peer
->ifname
= NULL
;
1067 /* Update source configuration. */
1068 if (peer
->update_source
) {
1069 sockunion_free(peer
->update_source
);
1070 peer
->update_source
= NULL
;
1073 if (peer
->update_if
) {
1074 XFREE(MTYPE_PEER_UPDATE_SOURCE
, peer
->update_if
);
1075 peer
->update_if
= NULL
;
1078 if (peer
->notify
.data
)
1079 XFREE(MTYPE_TMP
, peer
->notify
.data
);
1080 memset(&peer
->notify
, 0, sizeof(struct bgp_notify
));
1082 if (peer
->clear_node_queue
)
1083 work_queue_free_and_null(&peer
->clear_node_queue
);
1085 bgp_sync_delete(peer
);
1087 if (peer
->conf_if
) {
1088 XFREE(MTYPE_PEER_CONF_IF
, peer
->conf_if
);
1089 peer
->conf_if
= NULL
;
1092 bfd_info_free(&(peer
->bfd_info
));
1094 bgp_unlock(peer
->bgp
);
1096 memset(peer
, 0, sizeof(struct peer
));
1098 XFREE(MTYPE_BGP_PEER
, peer
);
1101 /* increase reference count on a struct peer */
1102 struct peer
*peer_lock_with_caller(const char *name
, struct peer
*peer
)
1104 assert(peer
&& (peer
->lock
>= 0));
1107 zlog_debug("%s peer_lock %p %d", name
, peer
, peer
->lock
);
1115 /* decrease reference count on a struct peer
1116 * struct peer is freed and NULL returned if last reference
1118 struct peer
*peer_unlock_with_caller(const char *name
, struct peer
*peer
)
1120 assert(peer
&& (peer
->lock
> 0));
1123 zlog_debug("%s peer_unlock %p %d", name
, peer
, peer
->lock
);
1128 if (peer
->lock
== 0) {
1136 /* Allocate new peer object, implicitely locked. */
1137 struct peer
*peer_new(struct bgp
*bgp
)
1144 /* bgp argument is absolutely required */
1149 /* Allocate new peer. */
1150 peer
= XCALLOC(MTYPE_BGP_PEER
, sizeof(struct peer
));
1152 /* Set default value. */
1154 peer
->v_start
= BGP_INIT_START_TIMER
;
1155 peer
->v_connect
= BGP_DEFAULT_CONNECT_RETRY
;
1156 peer
->status
= Idle
;
1157 peer
->ostatus
= Idle
;
1158 peer
->cur_event
= peer
->last_event
= peer
->last_major_event
= 0;
1159 peer
->bgp
= bgp_lock(bgp
);
1160 peer
= peer_lock(peer
); /* initial reference */
1161 peer
->password
= NULL
;
1163 /* Set default flags. */
1164 FOREACH_AFI_SAFI (afi
, safi
) {
1165 if (!bgp_option_check(BGP_OPT_CONFIG_CISCO
)) {
1166 SET_FLAG(peer
->af_flags
[afi
][safi
],
1167 PEER_FLAG_SEND_COMMUNITY
);
1168 SET_FLAG(peer
->af_flags
[afi
][safi
],
1169 PEER_FLAG_SEND_EXT_COMMUNITY
);
1170 SET_FLAG(peer
->af_flags
[afi
][safi
],
1171 PEER_FLAG_SEND_LARGE_COMMUNITY
);
1173 peer
->orf_plist
[afi
][safi
] = NULL
;
1175 SET_FLAG(peer
->sflags
, PEER_STATUS_CAPABILITY_OPEN
);
1177 /* Create buffers. */
1178 peer
->ibuf
= stream_fifo_new();
1179 peer
->obuf
= stream_fifo_new();
1180 pthread_mutex_init(&peer
->io_mtx
, NULL
);
1182 /* We use a larger buffer for peer->obuf_work in the event that:
1183 * - We RX a BGP_UPDATE where the attributes alone are just
1184 * under BGP_MAX_PACKET_SIZE
1185 * - The user configures an outbound route-map that does many as-path
1186 * prepends or adds many communities. At most they can have
1187 * CMD_ARGC_MAX args in a route-map so there is a finite limit on how
1188 * large they can make the attributes.
1190 * Having a buffer with BGP_MAX_PACKET_SIZE_OVERFLOW allows us to avoid
1191 * bounds checking for every single attribute as we construct an
1195 stream_new(BGP_MAX_PACKET_SIZE
+ BGP_MAX_PACKET_SIZE_OVERFLOW
);
1197 ringbuf_new(BGP_MAX_PACKET_SIZE
* BGP_READ_PACKET_MAX
);
1199 peer
->scratch
= stream_new(BGP_MAX_PACKET_SIZE
);
1201 bgp_sync_init(peer
);
1203 /* Get service port number. */
1204 sp
= getservbyname("bgp", "tcp");
1205 peer
->port
= (sp
== NULL
) ? BGP_PORT_DEFAULT
: ntohs(sp
->s_port
);
1207 QOBJ_REG(peer
, peer
);
1212 * This function is invoked when a duplicate peer structure associated with
1213 * a neighbor is being deleted. If this about-to-be-deleted structure is
1214 * the one with all the config, then we have to copy over the info.
1216 void peer_xfer_config(struct peer
*peer_dst
, struct peer
*peer_src
)
1218 struct peer_af
*paf
;
1226 /* The following function is used by both peer group config copy to
1227 * individual peer and when we transfer config
1229 if (peer_src
->change_local_as
)
1230 peer_dst
->change_local_as
= peer_src
->change_local_as
;
1232 /* peer flags apply */
1233 peer_dst
->flags
= peer_src
->flags
;
1234 peer_dst
->cap
= peer_src
->cap
;
1235 peer_dst
->config
= peer_src
->config
;
1237 peer_dst
->local_as
= peer_src
->local_as
;
1238 peer_dst
->port
= peer_src
->port
;
1239 (void)peer_sort(peer_dst
);
1240 peer_dst
->rmap_type
= peer_src
->rmap_type
;
1243 peer_dst
->holdtime
= peer_src
->holdtime
;
1244 peer_dst
->keepalive
= peer_src
->keepalive
;
1245 peer_dst
->connect
= peer_src
->connect
;
1246 peer_dst
->v_holdtime
= peer_src
->v_holdtime
;
1247 peer_dst
->v_keepalive
= peer_src
->v_keepalive
;
1248 peer_dst
->routeadv
= peer_src
->routeadv
;
1249 peer_dst
->v_routeadv
= peer_src
->v_routeadv
;
1251 /* password apply */
1252 if (peer_src
->password
&& !peer_dst
->password
)
1253 peer_dst
->password
=
1254 XSTRDUP(MTYPE_PEER_PASSWORD
, peer_src
->password
);
1256 FOREACH_AFI_SAFI (afi
, safi
) {
1257 peer_dst
->afc
[afi
][safi
] = peer_src
->afc
[afi
][safi
];
1258 peer_dst
->af_flags
[afi
][safi
] = peer_src
->af_flags
[afi
][safi
];
1259 peer_dst
->allowas_in
[afi
][safi
] =
1260 peer_src
->allowas_in
[afi
][safi
];
1261 peer_dst
->weight
[afi
][safi
] = peer_src
->weight
[afi
][safi
];
1264 for (afidx
= BGP_AF_START
; afidx
< BGP_AF_MAX
; afidx
++) {
1265 paf
= peer_src
->peer_af_array
[afidx
];
1267 peer_af_create(peer_dst
, paf
->afi
, paf
->safi
);
1270 /* update-source apply */
1271 if (peer_src
->update_source
) {
1272 if (peer_dst
->update_source
)
1273 sockunion_free(peer_dst
->update_source
);
1274 if (peer_dst
->update_if
) {
1275 XFREE(MTYPE_PEER_UPDATE_SOURCE
, peer_dst
->update_if
);
1276 peer_dst
->update_if
= NULL
;
1278 peer_dst
->update_source
=
1279 sockunion_dup(peer_src
->update_source
);
1280 } else if (peer_src
->update_if
) {
1281 if (peer_dst
->update_if
)
1282 XFREE(MTYPE_PEER_UPDATE_SOURCE
, peer_dst
->update_if
);
1283 if (peer_dst
->update_source
) {
1284 sockunion_free(peer_dst
->update_source
);
1285 peer_dst
->update_source
= NULL
;
1287 peer_dst
->update_if
=
1288 XSTRDUP(MTYPE_PEER_UPDATE_SOURCE
, peer_src
->update_if
);
1291 if (peer_src
->ifname
) {
1292 if (peer_dst
->ifname
)
1293 XFREE(MTYPE_BGP_PEER_IFNAME
, peer_dst
->ifname
);
1296 XSTRDUP(MTYPE_BGP_PEER_IFNAME
, peer_src
->ifname
);
1300 static int bgp_peer_conf_if_to_su_update_v4(struct peer
*peer
,
1301 struct interface
*ifp
)
1303 struct connected
*ifc
;
1306 struct listnode
*node
;
1308 /* If our IPv4 address on the interface is /30 or /31, we can derive the
1309 * IPv4 address of the other end.
1311 for (ALL_LIST_ELEMENTS_RO(ifp
->connected
, node
, ifc
)) {
1312 if (ifc
->address
&& (ifc
->address
->family
== AF_INET
)) {
1313 PREFIX_COPY_IPV4(&p
, CONNECTED_PREFIX(ifc
));
1314 if (p
.prefixlen
== 30) {
1315 peer
->su
.sa
.sa_family
= AF_INET
;
1316 addr
= ntohl(p
.u
.prefix4
.s_addr
);
1318 peer
->su
.sin
.sin_addr
.s_addr
=
1320 else if (addr
% 4 == 2)
1321 peer
->su
.sin
.sin_addr
.s_addr
=
1323 #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN
1324 peer
->su
.sin
.sin_len
=
1325 sizeof(struct sockaddr_in
);
1326 #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */
1328 } else if (p
.prefixlen
== 31) {
1329 peer
->su
.sa
.sa_family
= AF_INET
;
1330 addr
= ntohl(p
.u
.prefix4
.s_addr
);
1332 peer
->su
.sin
.sin_addr
.s_addr
=
1335 peer
->su
.sin
.sin_addr
.s_addr
=
1337 #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN
1338 peer
->su
.sin
.sin_len
=
1339 sizeof(struct sockaddr_in
);
1340 #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */
1342 } else if (bgp_debug_neighbor_events(peer
))
1344 "%s: IPv4 interface address is not /30 or /31, v4 session not started",
1352 static int bgp_peer_conf_if_to_su_update_v6(struct peer
*peer
,
1353 struct interface
*ifp
)
1355 struct nbr_connected
*ifc_nbr
;
1357 /* Have we learnt the peer's IPv6 link-local address? */
1358 if (ifp
->nbr_connected
1359 && (ifc_nbr
= listnode_head(ifp
->nbr_connected
))) {
1360 peer
->su
.sa
.sa_family
= AF_INET6
;
1361 memcpy(&peer
->su
.sin6
.sin6_addr
, &ifc_nbr
->address
->u
.prefix
,
1362 sizeof(struct in6_addr
));
1364 peer
->su
.sin6
.sin6_len
= sizeof(struct sockaddr_in6
);
1366 peer
->su
.sin6
.sin6_scope_id
= ifp
->ifindex
;
1374 * Set or reset the peer address socketunion structure based on the
1375 * learnt/derived peer address. If the address has changed, update the
1376 * password on the listen socket, if needed.
1378 void bgp_peer_conf_if_to_su_update(struct peer
*peer
)
1380 struct interface
*ifp
;
1382 int peer_addr_updated
= 0;
1387 prev_family
= peer
->su
.sa
.sa_family
;
1388 if ((ifp
= if_lookup_by_name(peer
->conf_if
, peer
->bgp
->vrf_id
))) {
1390 /* If BGP unnumbered is not "v6only", we first see if we can
1392 * peer's IPv4 address.
1394 if (!CHECK_FLAG(peer
->flags
, PEER_FLAG_IFPEER_V6ONLY
))
1396 bgp_peer_conf_if_to_su_update_v4(peer
, ifp
);
1398 /* If "v6only" or we can't derive peer's IPv4 address, see if
1400 * learnt the peer's IPv6 link-local address. This is from the
1402 * IPv6 address in router advertisement.
1404 if (!peer_addr_updated
)
1406 bgp_peer_conf_if_to_su_update_v6(peer
, ifp
);
1408 /* If we could derive the peer address, we may need to install the
1410 * configured for the peer, if any, on the listen socket. Otherwise,
1412 * that peer's address is not available and uninstall the password, if
1415 if (peer_addr_updated
) {
1416 if (peer
->password
&& prev_family
== AF_UNSPEC
)
1419 if (peer
->password
&& prev_family
!= AF_UNSPEC
)
1420 bgp_md5_unset(peer
);
1421 peer
->su
.sa
.sa_family
= AF_UNSPEC
;
1422 memset(&peer
->su
.sin6
.sin6_addr
, 0, sizeof(struct in6_addr
));
1425 /* Since our su changed we need to del/add peer to the peerhash */
1426 hash_release(peer
->bgp
->peerhash
, peer
);
1427 hash_get(peer
->bgp
->peerhash
, peer
, hash_alloc_intern
);
1430 static void bgp_recalculate_afi_safi_bestpaths(struct bgp
*bgp
, afi_t afi
,
1433 struct bgp_node
*rn
, *nrn
;
1435 for (rn
= bgp_table_top(bgp
->rib
[afi
][safi
]); rn
;
1436 rn
= bgp_route_next(rn
)) {
1437 if (rn
->info
!= NULL
) {
1438 /* Special handling for 2-level routing
1440 if (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
1441 || safi
== SAFI_EVPN
) {
1442 for (nrn
= bgp_table_top(
1443 (struct bgp_table
*)(rn
->info
));
1444 nrn
; nrn
= bgp_route_next(nrn
))
1445 bgp_process(bgp
, nrn
, afi
, safi
);
1447 bgp_process(bgp
, rn
, afi
, safi
);
1452 /* Force a bestpath recalculation for all prefixes. This is used
1453 * when 'bgp bestpath' commands are entered.
1455 void bgp_recalculate_all_bestpaths(struct bgp
*bgp
)
1460 FOREACH_AFI_SAFI (afi
, safi
) {
1461 bgp_recalculate_afi_safi_bestpaths(bgp
, afi
, safi
);
1465 /* Create new BGP peer. */
1466 struct peer
*peer_create(union sockunion
*su
, const char *conf_if
,
1467 struct bgp
*bgp
, as_t local_as
, as_t remote_as
,
1468 int as_type
, afi_t afi
, safi_t safi
,
1469 struct peer_group
*group
)
1473 char buf
[SU_ADDRSTRLEN
];
1475 peer
= peer_new(bgp
);
1477 peer
->conf_if
= XSTRDUP(MTYPE_PEER_CONF_IF
, conf_if
);
1478 bgp_peer_conf_if_to_su_update(peer
);
1480 XFREE(MTYPE_BGP_PEER_HOST
, peer
->host
);
1481 peer
->host
= XSTRDUP(MTYPE_BGP_PEER_HOST
, conf_if
);
1484 sockunion2str(su
, buf
, SU_ADDRSTRLEN
);
1486 XFREE(MTYPE_BGP_PEER_HOST
, peer
->host
);
1487 peer
->host
= XSTRDUP(MTYPE_BGP_PEER_HOST
, buf
);
1489 peer
->local_as
= local_as
;
1490 peer
->as
= remote_as
;
1491 peer
->as_type
= as_type
;
1492 peer
->local_id
= bgp
->router_id
;
1493 peer
->v_holdtime
= bgp
->default_holdtime
;
1494 peer
->v_keepalive
= bgp
->default_keepalive
;
1495 if (peer_sort(peer
) == BGP_PEER_IBGP
)
1496 peer
->v_routeadv
= BGP_DEFAULT_IBGP_ROUTEADV
;
1498 peer
->v_routeadv
= BGP_DEFAULT_EBGP_ROUTEADV
;
1500 peer
= peer_lock(peer
); /* bgp peer list reference */
1501 peer
->group
= group
;
1502 listnode_add_sort(bgp
->peer
, peer
);
1503 hash_get(bgp
->peerhash
, peer
, hash_alloc_intern
);
1505 /* Adjust update-group coalesce timer heuristics for # peers. */
1506 if (bgp
->heuristic_coalesce
) {
1507 long ct
= BGP_DEFAULT_SUBGROUP_COALESCE_TIME
1509 * BGP_PEER_ADJUST_SUBGROUP_COALESCE_TIME
);
1510 bgp
->coalesce_time
= MIN(BGP_MAX_SUBGROUP_COALESCE_TIME
, ct
);
1513 active
= peer_active(peer
);
1515 /* Last read and reset time set */
1516 peer
->readtime
= peer
->resettime
= bgp_clock();
1518 /* Default TTL set. */
1519 peer
->ttl
= (peer
->sort
== BGP_PEER_IBGP
) ? MAXTTL
: 1;
1521 SET_FLAG(peer
->flags
, PEER_FLAG_CONFIG_NODE
);
1524 peer
->afc
[afi
][safi
] = 1;
1525 peer_af_create(peer
, afi
, safi
);
1528 /* auto shutdown if configured */
1529 if (bgp
->autoshutdown
)
1530 peer_flag_set(peer
, PEER_FLAG_SHUTDOWN
);
1531 /* Set up peer's events and timers. */
1532 else if (!active
&& peer_active(peer
))
1533 bgp_timer_set(peer
);
1538 /* Make accept BGP peer. This function is only called from the test code */
1539 struct peer
*peer_create_accept(struct bgp
*bgp
)
1543 peer
= peer_new(bgp
);
1545 peer
= peer_lock(peer
); /* bgp peer list reference */
1546 listnode_add_sort(bgp
->peer
, peer
);
1552 * Return true if we have a peer configured to use this afi/safi
1554 int bgp_afi_safi_peer_exists(struct bgp
*bgp
, afi_t afi
, safi_t safi
)
1556 struct listnode
*node
;
1559 for (ALL_LIST_ELEMENTS_RO(bgp
->peer
, node
, peer
)) {
1560 if (!CHECK_FLAG(peer
->flags
, PEER_FLAG_CONFIG_NODE
))
1563 if (peer
->afc
[afi
][safi
])
1570 /* Change peer's AS number. */
1571 void peer_as_change(struct peer
*peer
, as_t as
, int as_specified
)
1573 bgp_peer_sort_t type
;
1577 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
1578 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
)) {
1579 peer
->last_reset
= PEER_DOWN_REMOTE_AS_CHANGE
;
1580 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
1581 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
1583 bgp_session_reset(peer
);
1585 type
= peer_sort(peer
);
1587 peer
->as_type
= as_specified
;
1589 if (bgp_config_check(peer
->bgp
, BGP_CONFIG_CONFEDERATION
)
1590 && !bgp_confederation_peers_check(peer
->bgp
, as
)
1591 && peer
->bgp
->as
!= as
)
1592 peer
->local_as
= peer
->bgp
->confed_id
;
1594 peer
->local_as
= peer
->bgp
->as
;
1596 /* Advertisement-interval reset */
1599 conf
= peer
->group
->conf
;
1601 if (conf
&& CHECK_FLAG(conf
->config
, PEER_CONFIG_ROUTEADV
)) {
1602 peer
->v_routeadv
= conf
->routeadv
;
1604 /* Only go back to the default advertisement-interval if the user had
1606 * already configured it */
1607 else if (!CHECK_FLAG(peer
->config
, PEER_CONFIG_ROUTEADV
)) {
1608 if (peer_sort(peer
) == BGP_PEER_IBGP
)
1609 peer
->v_routeadv
= BGP_DEFAULT_IBGP_ROUTEADV
;
1611 peer
->v_routeadv
= BGP_DEFAULT_EBGP_ROUTEADV
;
1614 if (peer_sort(peer
) == BGP_PEER_IBGP
)
1616 else if (type
== BGP_PEER_IBGP
)
1619 /* reflector-client reset */
1620 if (peer_sort(peer
) != BGP_PEER_IBGP
) {
1621 UNSET_FLAG(peer
->af_flags
[AFI_IP
][SAFI_UNICAST
],
1622 PEER_FLAG_REFLECTOR_CLIENT
);
1623 UNSET_FLAG(peer
->af_flags
[AFI_IP
][SAFI_MULTICAST
],
1624 PEER_FLAG_REFLECTOR_CLIENT
);
1625 UNSET_FLAG(peer
->af_flags
[AFI_IP
][SAFI_LABELED_UNICAST
],
1626 PEER_FLAG_REFLECTOR_CLIENT
);
1627 UNSET_FLAG(peer
->af_flags
[AFI_IP
][SAFI_MPLS_VPN
],
1628 PEER_FLAG_REFLECTOR_CLIENT
);
1629 UNSET_FLAG(peer
->af_flags
[AFI_IP
][SAFI_ENCAP
],
1630 PEER_FLAG_REFLECTOR_CLIENT
);
1631 UNSET_FLAG(peer
->af_flags
[AFI_IP
][SAFI_FLOWSPEC
],
1632 PEER_FLAG_REFLECTOR_CLIENT
);
1633 UNSET_FLAG(peer
->af_flags
[AFI_IP6
][SAFI_UNICAST
],
1634 PEER_FLAG_REFLECTOR_CLIENT
);
1635 UNSET_FLAG(peer
->af_flags
[AFI_IP6
][SAFI_MULTICAST
],
1636 PEER_FLAG_REFLECTOR_CLIENT
);
1637 UNSET_FLAG(peer
->af_flags
[AFI_IP6
][SAFI_LABELED_UNICAST
],
1638 PEER_FLAG_REFLECTOR_CLIENT
);
1639 UNSET_FLAG(peer
->af_flags
[AFI_IP6
][SAFI_MPLS_VPN
],
1640 PEER_FLAG_REFLECTOR_CLIENT
);
1641 UNSET_FLAG(peer
->af_flags
[AFI_IP6
][SAFI_ENCAP
],
1642 PEER_FLAG_REFLECTOR_CLIENT
);
1643 UNSET_FLAG(peer
->af_flags
[AFI_IP6
][SAFI_FLOWSPEC
],
1644 PEER_FLAG_REFLECTOR_CLIENT
);
1645 UNSET_FLAG(peer
->af_flags
[AFI_L2VPN
][SAFI_EVPN
],
1646 PEER_FLAG_REFLECTOR_CLIENT
);
1649 /* local-as reset */
1650 if (peer_sort(peer
) != BGP_PEER_EBGP
) {
1651 peer
->change_local_as
= 0;
1652 UNSET_FLAG(peer
->flags
, PEER_FLAG_LOCAL_AS_NO_PREPEND
);
1653 UNSET_FLAG(peer
->flags
, PEER_FLAG_LOCAL_AS_REPLACE_AS
);
1657 /* If peer does not exist, create new one. If peer already exists,
1658 set AS number to the peer. */
1659 int peer_remote_as(struct bgp
*bgp
, union sockunion
*su
, const char *conf_if
,
1660 as_t
*as
, int as_type
, afi_t afi
, safi_t safi
)
1666 peer
= peer_lookup_by_conf_if(bgp
, conf_if
);
1668 peer
= peer_lookup(bgp
, su
);
1671 /* Not allowed for a dynamic peer. */
1672 if (peer_dynamic_neighbor(peer
)) {
1674 return BGP_ERR_INVALID_FOR_DYNAMIC_PEER
;
1677 /* When this peer is a member of peer-group. */
1679 if (peer
->group
->conf
->as
) {
1680 /* Return peer group's AS number. */
1681 *as
= peer
->group
->conf
->as
;
1682 return BGP_ERR_PEER_GROUP_MEMBER
;
1684 if (peer_sort(peer
->group
->conf
) == BGP_PEER_IBGP
) {
1685 if ((as_type
!= AS_INTERNAL
)
1686 && (bgp
->as
!= *as
)) {
1688 return BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT
;
1691 if ((as_type
!= AS_EXTERNAL
)
1692 && (bgp
->as
== *as
)) {
1694 return BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT
;
1699 /* Existing peer's AS number change. */
1700 if (((peer
->as_type
== AS_SPECIFIED
) && peer
->as
!= *as
)
1701 || (peer
->as_type
!= as_type
))
1702 peer_as_change(peer
, *as
, as_type
);
1705 return BGP_ERR_NO_INTERFACE_CONFIG
;
1707 /* If the peer is not part of our confederation, and its not an
1708 iBGP peer then spoof the source AS */
1709 if (bgp_config_check(bgp
, BGP_CONFIG_CONFEDERATION
)
1710 && !bgp_confederation_peers_check(bgp
, *as
)
1712 local_as
= bgp
->confed_id
;
1716 /* If this is IPv4 unicast configuration and "no bgp default
1717 ipv4-unicast" is specified. */
1719 if (bgp_flag_check(bgp
, BGP_FLAG_NO_DEFAULT_IPV4
)
1720 && afi
== AFI_IP
&& safi
== SAFI_UNICAST
)
1721 peer_create(su
, conf_if
, bgp
, local_as
, *as
, as_type
, 0,
1724 peer_create(su
, conf_if
, bgp
, local_as
, *as
, as_type
,
1731 static void peer_group2peer_config_copy_af(struct peer_group
*group
,
1732 struct peer
*peer
, afi_t afi
,
1736 int out
= FILTER_OUT
;
1738 struct bgp_filter
*pfilter
;
1739 struct bgp_filter
*gfilter
;
1742 pfilter
= &peer
->filter
[afi
][safi
];
1743 gfilter
= &conf
->filter
[afi
][safi
];
1745 /* peer af_flags apply */
1746 peer
->af_flags
[afi
][safi
] = conf
->af_flags
[afi
][safi
];
1748 /* maximum-prefix */
1749 peer
->pmax
[afi
][safi
] = conf
->pmax
[afi
][safi
];
1750 peer
->pmax_threshold
[afi
][safi
] = conf
->pmax_threshold
[afi
][safi
];
1751 peer
->pmax_restart
[afi
][safi
] = conf
->pmax_restart
[afi
][safi
];
1754 peer
->allowas_in
[afi
][safi
] = conf
->allowas_in
[afi
][safi
];
1757 peer
->weight
[afi
][safi
] = conf
->weight
[afi
][safi
];
1759 /* default-originate route-map */
1760 if (conf
->default_rmap
[afi
][safi
].name
) {
1761 if (peer
->default_rmap
[afi
][safi
].name
)
1762 XFREE(MTYPE_BGP_FILTER_NAME
,
1763 peer
->default_rmap
[afi
][safi
].name
);
1764 peer
->default_rmap
[afi
][safi
].name
=
1765 XSTRDUP(MTYPE_BGP_FILTER_NAME
,
1766 conf
->default_rmap
[afi
][safi
].name
);
1767 peer
->default_rmap
[afi
][safi
].map
=
1768 conf
->default_rmap
[afi
][safi
].map
;
1771 /* inbound filter apply */
1772 if (gfilter
->dlist
[in
].name
&& !pfilter
->dlist
[in
].name
) {
1773 if (pfilter
->dlist
[in
].name
)
1774 XFREE(MTYPE_BGP_FILTER_NAME
, pfilter
->dlist
[in
].name
);
1775 pfilter
->dlist
[in
].name
=
1776 XSTRDUP(MTYPE_BGP_FILTER_NAME
, gfilter
->dlist
[in
].name
);
1777 pfilter
->dlist
[in
].alist
= gfilter
->dlist
[in
].alist
;
1780 if (gfilter
->plist
[in
].name
&& !pfilter
->plist
[in
].name
) {
1781 if (pfilter
->plist
[in
].name
)
1782 XFREE(MTYPE_BGP_FILTER_NAME
, pfilter
->plist
[in
].name
);
1783 pfilter
->plist
[in
].name
=
1784 XSTRDUP(MTYPE_BGP_FILTER_NAME
, gfilter
->plist
[in
].name
);
1785 pfilter
->plist
[in
].plist
= gfilter
->plist
[in
].plist
;
1788 if (gfilter
->aslist
[in
].name
&& !pfilter
->aslist
[in
].name
) {
1789 if (pfilter
->aslist
[in
].name
)
1790 XFREE(MTYPE_BGP_FILTER_NAME
, pfilter
->aslist
[in
].name
);
1791 pfilter
->aslist
[in
].name
= XSTRDUP(MTYPE_BGP_FILTER_NAME
,
1792 gfilter
->aslist
[in
].name
);
1793 pfilter
->aslist
[in
].aslist
= gfilter
->aslist
[in
].aslist
;
1796 if (gfilter
->map
[RMAP_IN
].name
&& !pfilter
->map
[RMAP_IN
].name
) {
1797 if (pfilter
->map
[RMAP_IN
].name
)
1798 XFREE(MTYPE_BGP_FILTER_NAME
,
1799 pfilter
->map
[RMAP_IN
].name
);
1800 pfilter
->map
[RMAP_IN
].name
= XSTRDUP(
1801 MTYPE_BGP_FILTER_NAME
, gfilter
->map
[RMAP_IN
].name
);
1802 pfilter
->map
[RMAP_IN
].map
= gfilter
->map
[RMAP_IN
].map
;
1805 /* outbound filter apply */
1806 if (gfilter
->dlist
[out
].name
) {
1807 if (pfilter
->dlist
[out
].name
)
1808 XFREE(MTYPE_BGP_FILTER_NAME
, pfilter
->dlist
[out
].name
);
1809 pfilter
->dlist
[out
].name
= XSTRDUP(MTYPE_BGP_FILTER_NAME
,
1810 gfilter
->dlist
[out
].name
);
1811 pfilter
->dlist
[out
].alist
= gfilter
->dlist
[out
].alist
;
1813 if (pfilter
->dlist
[out
].name
)
1814 XFREE(MTYPE_BGP_FILTER_NAME
, pfilter
->dlist
[out
].name
);
1815 pfilter
->dlist
[out
].name
= NULL
;
1816 pfilter
->dlist
[out
].alist
= NULL
;
1819 if (gfilter
->plist
[out
].name
) {
1820 if (pfilter
->plist
[out
].name
)
1821 XFREE(MTYPE_BGP_FILTER_NAME
, pfilter
->plist
[out
].name
);
1822 pfilter
->plist
[out
].name
= XSTRDUP(MTYPE_BGP_FILTER_NAME
,
1823 gfilter
->plist
[out
].name
);
1824 pfilter
->plist
[out
].plist
= gfilter
->plist
[out
].plist
;
1826 if (pfilter
->plist
[out
].name
)
1827 XFREE(MTYPE_BGP_FILTER_NAME
, pfilter
->plist
[out
].name
);
1828 pfilter
->plist
[out
].name
= NULL
;
1829 pfilter
->plist
[out
].plist
= NULL
;
1832 if (gfilter
->aslist
[out
].name
) {
1833 if (pfilter
->aslist
[out
].name
)
1834 XFREE(MTYPE_BGP_FILTER_NAME
, pfilter
->aslist
[out
].name
);
1835 pfilter
->aslist
[out
].name
= XSTRDUP(MTYPE_BGP_FILTER_NAME
,
1836 gfilter
->aslist
[out
].name
);
1837 pfilter
->aslist
[out
].aslist
= gfilter
->aslist
[out
].aslist
;
1839 if (pfilter
->aslist
[out
].name
)
1840 XFREE(MTYPE_BGP_FILTER_NAME
, pfilter
->aslist
[out
].name
);
1841 pfilter
->aslist
[out
].name
= NULL
;
1842 pfilter
->aslist
[out
].aslist
= NULL
;
1845 if (gfilter
->map
[RMAP_OUT
].name
) {
1846 if (pfilter
->map
[RMAP_OUT
].name
)
1847 XFREE(MTYPE_BGP_FILTER_NAME
,
1848 pfilter
->map
[RMAP_OUT
].name
);
1849 pfilter
->map
[RMAP_OUT
].name
= XSTRDUP(
1850 MTYPE_BGP_FILTER_NAME
, gfilter
->map
[RMAP_OUT
].name
);
1851 pfilter
->map
[RMAP_OUT
].map
= gfilter
->map
[RMAP_OUT
].map
;
1853 if (pfilter
->map
[RMAP_OUT
].name
)
1854 XFREE(MTYPE_BGP_FILTER_NAME
,
1855 pfilter
->map
[RMAP_OUT
].name
);
1856 pfilter
->map
[RMAP_OUT
].name
= NULL
;
1857 pfilter
->map
[RMAP_OUT
].map
= NULL
;
1860 if (gfilter
->usmap
.name
) {
1861 if (pfilter
->usmap
.name
)
1862 XFREE(MTYPE_BGP_FILTER_NAME
, pfilter
->usmap
.name
);
1863 pfilter
->usmap
.name
=
1864 XSTRDUP(MTYPE_BGP_FILTER_NAME
, gfilter
->usmap
.name
);
1865 pfilter
->usmap
.map
= gfilter
->usmap
.map
;
1867 if (pfilter
->usmap
.name
)
1868 XFREE(MTYPE_BGP_FILTER_NAME
, pfilter
->usmap
.name
);
1869 pfilter
->usmap
.name
= NULL
;
1870 pfilter
->usmap
.map
= NULL
;
1874 static int peer_activate_af(struct peer
*peer
, afi_t afi
, safi_t safi
)
1878 if (CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
1879 zlog_err("%s was called for peer-group %s", __func__
,
1884 /* Do not activate a peer for both SAFI_UNICAST and SAFI_LABELED_UNICAST
1886 if ((safi
== SAFI_UNICAST
&& peer
->afc
[afi
][SAFI_LABELED_UNICAST
])
1887 || (safi
== SAFI_LABELED_UNICAST
&& peer
->afc
[afi
][SAFI_UNICAST
]))
1888 return BGP_ERR_PEER_SAFI_CONFLICT
;
1890 /* Nothing to do if we've already activated this peer */
1891 if (peer
->afc
[afi
][safi
])
1894 if (peer_af_create(peer
, afi
, safi
) == NULL
)
1897 active
= peer_active(peer
);
1898 peer
->afc
[afi
][safi
] = 1;
1901 peer_group2peer_config_copy_af(peer
->group
, peer
, afi
, safi
);
1903 if (!active
&& peer_active(peer
)) {
1904 bgp_timer_set(peer
);
1906 if (peer
->status
== Established
) {
1907 if (CHECK_FLAG(peer
->cap
, PEER_CAP_DYNAMIC_RCV
)) {
1908 peer
->afc_adv
[afi
][safi
] = 1;
1909 bgp_capability_send(peer
, afi
, safi
,
1911 CAPABILITY_ACTION_SET
);
1912 if (peer
->afc_recv
[afi
][safi
]) {
1913 peer
->afc_nego
[afi
][safi
] = 1;
1914 bgp_announce_route(peer
, afi
, safi
);
1917 peer
->last_reset
= PEER_DOWN_AF_ACTIVATE
;
1918 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
1919 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
1922 if (peer
->status
== OpenSent
|| peer
->status
== OpenConfirm
) {
1923 peer
->last_reset
= PEER_DOWN_AF_ACTIVATE
;
1924 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
1925 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
1932 /* Activate the peer or peer group for specified AFI and SAFI. */
1933 int peer_activate(struct peer
*peer
, afi_t afi
, safi_t safi
)
1936 struct peer_group
*group
;
1937 struct listnode
*node
, *nnode
;
1938 struct peer
*tmp_peer
;
1941 /* Nothing to do if we've already activated this peer */
1942 if (peer
->afc
[afi
][safi
])
1947 /* This is a peer-group so activate all of the members of the
1948 * peer-group as well */
1949 if (CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
1951 /* Do not activate a peer for both SAFI_UNICAST and
1952 * SAFI_LABELED_UNICAST */
1953 if ((safi
== SAFI_UNICAST
1954 && peer
->afc
[afi
][SAFI_LABELED_UNICAST
])
1955 || (safi
== SAFI_LABELED_UNICAST
1956 && peer
->afc
[afi
][SAFI_UNICAST
]))
1957 return BGP_ERR_PEER_SAFI_CONFLICT
;
1959 peer
->afc
[afi
][safi
] = 1;
1960 group
= peer
->group
;
1962 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, tmp_peer
)) {
1963 ret
|= peer_activate_af(tmp_peer
, afi
, safi
);
1966 ret
|= peer_activate_af(peer
, afi
, safi
);
1969 /* If this is the first peer to be activated for this
1970 * afi/labeled-unicast recalc bestpaths to trigger label allocation */
1971 if (safi
== SAFI_LABELED_UNICAST
1972 && !bgp
->allocate_mpls_labels
[afi
][SAFI_UNICAST
]) {
1974 if (BGP_DEBUG(zebra
, ZEBRA
))
1976 "peer(s) are now active for labeled-unicast, allocate MPLS labels");
1978 bgp
->allocate_mpls_labels
[afi
][SAFI_UNICAST
] = 1;
1979 bgp_recalculate_afi_safi_bestpaths(bgp
, afi
, SAFI_UNICAST
);
1982 if (safi
== SAFI_FLOWSPEC
) {
1983 /* connect to table manager */
1984 bgp_zebra_init_tm_connect();
1989 static int non_peergroup_deactivate_af(struct peer
*peer
, afi_t afi
,
1992 if (CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
1993 zlog_err("%s was called for peer-group %s", __func__
,
1998 /* Nothing to do if we've already deactivated this peer */
1999 if (!peer
->afc
[afi
][safi
])
2002 /* De-activate the address family configuration. */
2003 peer
->afc
[afi
][safi
] = 0;
2005 if (peer_af_delete(peer
, afi
, safi
) != 0) {
2006 zlog_err("couldn't delete af structure for peer %s",
2011 if (peer
->status
== Established
) {
2012 if (CHECK_FLAG(peer
->cap
, PEER_CAP_DYNAMIC_RCV
)) {
2013 peer
->afc_adv
[afi
][safi
] = 0;
2014 peer
->afc_nego
[afi
][safi
] = 0;
2016 if (peer_active_nego(peer
)) {
2017 bgp_capability_send(peer
, afi
, safi
,
2019 CAPABILITY_ACTION_UNSET
);
2020 bgp_clear_route(peer
, afi
, safi
);
2021 peer
->pcount
[afi
][safi
] = 0;
2023 peer
->last_reset
= PEER_DOWN_NEIGHBOR_DELETE
;
2024 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
2025 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
2028 peer
->last_reset
= PEER_DOWN_NEIGHBOR_DELETE
;
2029 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
2030 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
2037 int peer_deactivate(struct peer
*peer
, afi_t afi
, safi_t safi
)
2040 struct peer_group
*group
;
2041 struct peer
*tmp_peer
;
2042 struct listnode
*node
, *nnode
;
2045 /* Nothing to do if we've already de-activated this peer */
2046 if (!peer
->afc
[afi
][safi
])
2049 /* This is a peer-group so de-activate all of the members of the
2050 * peer-group as well */
2051 if (CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
2052 peer
->afc
[afi
][safi
] = 0;
2053 group
= peer
->group
;
2055 if (peer_af_delete(peer
, afi
, safi
) != 0) {
2056 zlog_err("couldn't delete af structure for peer %s",
2060 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, tmp_peer
)) {
2061 ret
|= non_peergroup_deactivate_af(tmp_peer
, afi
, safi
);
2064 ret
|= non_peergroup_deactivate_af(peer
, afi
, safi
);
2069 /* If this is the last peer to be deactivated for this
2070 * afi/labeled-unicast recalc bestpaths to trigger label deallocation */
2071 if (safi
== SAFI_LABELED_UNICAST
2072 && bgp
->allocate_mpls_labels
[afi
][SAFI_UNICAST
]
2073 && !bgp_afi_safi_peer_exists(bgp
, afi
, safi
)) {
2075 if (BGP_DEBUG(zebra
, ZEBRA
))
2077 "peer(s) are no longer active for labeled-unicast, deallocate MPLS labels");
2079 bgp
->allocate_mpls_labels
[afi
][SAFI_UNICAST
] = 0;
2080 bgp_recalculate_afi_safi_bestpaths(bgp
, afi
, SAFI_UNICAST
);
2085 int peer_afc_set(struct peer
*peer
, afi_t afi
, safi_t safi
, int enable
)
2088 return peer_activate(peer
, afi
, safi
);
2090 return peer_deactivate(peer
, afi
, safi
);
2093 static void peer_nsf_stop(struct peer
*peer
)
2098 UNSET_FLAG(peer
->sflags
, PEER_STATUS_NSF_WAIT
);
2099 UNSET_FLAG(peer
->sflags
, PEER_STATUS_NSF_MODE
);
2101 for (afi
= AFI_IP
; afi
< AFI_MAX
; afi
++)
2102 for (safi
= SAFI_UNICAST
; safi
<= SAFI_MPLS_VPN
; safi
++)
2103 peer
->nsf
[afi
][safi
] = 0;
2105 if (peer
->t_gr_restart
) {
2106 BGP_TIMER_OFF(peer
->t_gr_restart
);
2107 if (bgp_debug_neighbor_events(peer
))
2108 zlog_debug("%s graceful restart timer stopped",
2111 if (peer
->t_gr_stale
) {
2112 BGP_TIMER_OFF(peer
->t_gr_stale
);
2113 if (bgp_debug_neighbor_events(peer
))
2115 "%s graceful restart stalepath timer stopped",
2118 bgp_clear_route_all(peer
);
2121 /* Delete peer from confguration.
2123 * The peer is moved to a dead-end "Deleted" neighbour-state, to allow
2124 * it to "cool off" and refcounts to hit 0, at which state it is freed.
2126 * This function /should/ take care to be idempotent, to guard against
2127 * it being called multiple times through stray events that come in
2128 * that happen to result in this function being called again. That
2129 * said, getting here for a "Deleted" peer is a bug in the neighbour
2132 int peer_delete(struct peer
*peer
)
2138 struct bgp_filter
*filter
;
2139 struct listnode
*pn
;
2142 assert(peer
->status
!= Deleted
);
2145 accept_peer
= CHECK_FLAG(peer
->sflags
, PEER_STATUS_ACCEPT_PEER
);
2147 bgp_reads_off(peer
);
2148 bgp_writes_off(peer
);
2149 assert(!CHECK_FLAG(peer
->thread_flags
, PEER_THREAD_WRITES_ON
));
2150 assert(!CHECK_FLAG(peer
->thread_flags
, PEER_THREAD_READS_ON
));
2152 if (CHECK_FLAG(peer
->sflags
, PEER_STATUS_NSF_WAIT
))
2153 peer_nsf_stop(peer
);
2155 SET_FLAG(peer
->flags
, PEER_FLAG_DELETE
);
2157 /* If this peer belongs to peer group, clear up the
2160 if (peer_dynamic_neighbor(peer
))
2161 peer_drop_dynamic_neighbor(peer
);
2163 if ((pn
= listnode_lookup(peer
->group
->peer
, peer
))) {
2165 peer
); /* group->peer list reference */
2166 list_delete_node(peer
->group
->peer
, pn
);
2171 /* Withdraw all information from routing table. We can not use
2172 * BGP_EVENT_ADD (peer, BGP_Stop) at here. Because the event is
2173 * executed after peer structure is deleted.
2175 peer
->last_reset
= PEER_DOWN_NEIGHBOR_DELETE
;
2177 UNSET_FLAG(peer
->flags
, PEER_FLAG_DELETE
);
2179 if (peer
->doppelganger
) {
2180 peer
->doppelganger
->doppelganger
= NULL
;
2181 peer
->doppelganger
= NULL
;
2184 UNSET_FLAG(peer
->sflags
, PEER_STATUS_ACCEPT_PEER
);
2185 bgp_fsm_change_status(peer
, Deleted
);
2187 /* Remove from NHT */
2188 if (CHECK_FLAG(peer
->flags
, PEER_FLAG_CONFIG_NODE
))
2189 bgp_unlink_nexthop_by_peer(peer
);
2191 /* Password configuration */
2192 if (peer
->password
) {
2193 XFREE(MTYPE_PEER_PASSWORD
, peer
->password
);
2194 peer
->password
= NULL
;
2196 if (!accept_peer
&& !BGP_PEER_SU_UNSPEC(peer
)
2197 && !CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
))
2198 bgp_md5_unset(peer
);
2201 bgp_timer_set(peer
); /* stops all timers for Deleted */
2203 /* Delete from all peer list. */
2204 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)
2205 && (pn
= listnode_lookup(bgp
->peer
, peer
))) {
2206 peer_unlock(peer
); /* bgp peer list reference */
2207 list_delete_node(bgp
->peer
, pn
);
2208 hash_release(bgp
->peerhash
, peer
);
2213 stream_fifo_free(peer
->ibuf
);
2218 stream_fifo_free(peer
->obuf
);
2222 if (peer
->ibuf_work
) {
2223 ringbuf_del(peer
->ibuf_work
);
2224 peer
->ibuf_work
= NULL
;
2227 if (peer
->obuf_work
) {
2228 stream_free(peer
->obuf_work
);
2229 peer
->obuf_work
= NULL
;
2232 if (peer
->scratch
) {
2233 stream_free(peer
->scratch
);
2234 peer
->scratch
= NULL
;
2237 /* Local and remote addresses. */
2238 if (peer
->su_local
) {
2239 sockunion_free(peer
->su_local
);
2240 peer
->su_local
= NULL
;
2243 if (peer
->su_remote
) {
2244 sockunion_free(peer
->su_remote
);
2245 peer
->su_remote
= NULL
;
2248 /* Free filter related memory. */
2249 FOREACH_AFI_SAFI (afi
, safi
) {
2250 filter
= &peer
->filter
[afi
][safi
];
2252 for (i
= FILTER_IN
; i
< FILTER_MAX
; i
++) {
2253 if (filter
->dlist
[i
].name
) {
2254 XFREE(MTYPE_BGP_FILTER_NAME
,
2255 filter
->dlist
[i
].name
);
2256 filter
->dlist
[i
].name
= NULL
;
2259 if (filter
->plist
[i
].name
) {
2260 XFREE(MTYPE_BGP_FILTER_NAME
,
2261 filter
->plist
[i
].name
);
2262 filter
->plist
[i
].name
= NULL
;
2265 if (filter
->aslist
[i
].name
) {
2266 XFREE(MTYPE_BGP_FILTER_NAME
,
2267 filter
->aslist
[i
].name
);
2268 filter
->aslist
[i
].name
= NULL
;
2272 for (i
= RMAP_IN
; i
< RMAP_MAX
; i
++) {
2273 if (filter
->map
[i
].name
) {
2274 XFREE(MTYPE_BGP_FILTER_NAME
,
2275 filter
->map
[i
].name
);
2276 filter
->map
[i
].name
= NULL
;
2280 if (filter
->usmap
.name
) {
2281 XFREE(MTYPE_BGP_FILTER_NAME
, filter
->usmap
.name
);
2282 filter
->usmap
.name
= NULL
;
2285 if (peer
->default_rmap
[afi
][safi
].name
) {
2286 XFREE(MTYPE_ROUTE_MAP_NAME
,
2287 peer
->default_rmap
[afi
][safi
].name
);
2288 peer
->default_rmap
[afi
][safi
].name
= NULL
;
2292 FOREACH_AFI_SAFI (afi
, safi
)
2293 peer_af_delete(peer
, afi
, safi
);
2295 if (peer
->hostname
) {
2296 XFREE(MTYPE_BGP_PEER_HOST
, peer
->hostname
);
2297 peer
->hostname
= NULL
;
2300 if (peer
->domainname
) {
2301 XFREE(MTYPE_BGP_PEER_HOST
, peer
->domainname
);
2302 peer
->domainname
= NULL
;
2305 peer_unlock(peer
); /* initial reference */
2310 static int peer_group_cmp(struct peer_group
*g1
, struct peer_group
*g2
)
2312 return strcmp(g1
->name
, g2
->name
);
2315 /* Peer group cofiguration. */
2316 static struct peer_group
*peer_group_new(void)
2318 return (struct peer_group
*)XCALLOC(MTYPE_PEER_GROUP
,
2319 sizeof(struct peer_group
));
2322 static void peer_group_free(struct peer_group
*group
)
2324 XFREE(MTYPE_PEER_GROUP
, group
);
2327 struct peer_group
*peer_group_lookup(struct bgp
*bgp
, const char *name
)
2329 struct peer_group
*group
;
2330 struct listnode
*node
, *nnode
;
2332 for (ALL_LIST_ELEMENTS(bgp
->group
, node
, nnode
, group
)) {
2333 if (strcmp(group
->name
, name
) == 0)
2339 struct peer_group
*peer_group_get(struct bgp
*bgp
, const char *name
)
2341 struct peer_group
*group
;
2344 group
= peer_group_lookup(bgp
, name
);
2348 group
= peer_group_new();
2351 XFREE(MTYPE_PEER_GROUP_HOST
, group
->name
);
2352 group
->name
= XSTRDUP(MTYPE_PEER_GROUP_HOST
, name
);
2353 group
->peer
= list_new();
2354 for (afi
= AFI_IP
; afi
< AFI_MAX
; afi
++)
2355 group
->listen_range
[afi
] = list_new();
2356 group
->conf
= peer_new(bgp
);
2357 if (!bgp_flag_check(bgp
, BGP_FLAG_NO_DEFAULT_IPV4
))
2358 group
->conf
->afc
[AFI_IP
][SAFI_UNICAST
] = 1;
2359 if (group
->conf
->host
)
2360 XFREE(MTYPE_BGP_PEER_HOST
, group
->conf
->host
);
2361 group
->conf
->host
= XSTRDUP(MTYPE_BGP_PEER_HOST
, name
);
2362 group
->conf
->group
= group
;
2363 group
->conf
->as
= 0;
2364 group
->conf
->ttl
= 1;
2365 group
->conf
->gtsm_hops
= 0;
2366 group
->conf
->v_routeadv
= BGP_DEFAULT_EBGP_ROUTEADV
;
2367 UNSET_FLAG(group
->conf
->config
, PEER_CONFIG_TIMER
);
2368 UNSET_FLAG(group
->conf
->config
, PEER_GROUP_CONFIG_TIMER
);
2369 UNSET_FLAG(group
->conf
->config
, PEER_CONFIG_CONNECT
);
2370 group
->conf
->keepalive
= 0;
2371 group
->conf
->holdtime
= 0;
2372 group
->conf
->connect
= 0;
2373 SET_FLAG(group
->conf
->sflags
, PEER_STATUS_GROUP
);
2374 listnode_add_sort(bgp
->group
, group
);
2379 static void peer_group2peer_config_copy(struct peer_group
*group
,
2383 int saved_flags
= 0;
2389 peer
->as
= conf
->as
;
2392 if (conf
->change_local_as
)
2393 peer
->change_local_as
= conf
->change_local_as
;
2396 peer
->ttl
= conf
->ttl
;
2399 peer
->gtsm_hops
= conf
->gtsm_hops
;
2401 /* These are per-peer specific flags and so we must preserve them */
2402 saved_flags
|= CHECK_FLAG(peer
->flags
, PEER_FLAG_IFPEER_V6ONLY
);
2403 saved_flags
|= CHECK_FLAG(peer
->flags
, PEER_FLAG_SHUTDOWN
);
2404 peer
->flags
= conf
->flags
;
2405 SET_FLAG(peer
->flags
, saved_flags
);
2407 /* peer config apply */
2408 peer
->config
= conf
->config
;
2410 /* peer timers apply */
2411 peer
->holdtime
= conf
->holdtime
;
2412 peer
->keepalive
= conf
->keepalive
;
2413 peer
->connect
= conf
->connect
;
2414 if (CHECK_FLAG(conf
->config
, PEER_CONFIG_CONNECT
))
2415 peer
->v_connect
= conf
->connect
;
2417 peer
->v_connect
= BGP_DEFAULT_CONNECT_RETRY
;
2419 /* advertisement-interval reset */
2420 if (CHECK_FLAG(conf
->config
, PEER_CONFIG_ROUTEADV
))
2421 peer
->v_routeadv
= conf
->routeadv
;
2422 else if (peer_sort(peer
) == BGP_PEER_IBGP
)
2423 peer
->v_routeadv
= BGP_DEFAULT_IBGP_ROUTEADV
;
2425 peer
->v_routeadv
= BGP_DEFAULT_EBGP_ROUTEADV
;
2427 /* password apply */
2428 if (conf
->password
&& !peer
->password
)
2429 peer
->password
= XSTRDUP(MTYPE_PEER_PASSWORD
, conf
->password
);
2431 if (!BGP_PEER_SU_UNSPEC(peer
))
2434 /* update-source apply */
2435 if (conf
->update_source
) {
2436 if (peer
->update_source
)
2437 sockunion_free(peer
->update_source
);
2438 if (peer
->update_if
) {
2439 XFREE(MTYPE_PEER_UPDATE_SOURCE
, peer
->update_if
);
2440 peer
->update_if
= NULL
;
2442 peer
->update_source
= sockunion_dup(conf
->update_source
);
2443 } else if (conf
->update_if
) {
2444 if (peer
->update_if
)
2445 XFREE(MTYPE_PEER_UPDATE_SOURCE
, peer
->update_if
);
2446 if (peer
->update_source
) {
2447 sockunion_free(peer
->update_source
);
2448 peer
->update_source
= NULL
;
2451 XSTRDUP(MTYPE_PEER_UPDATE_SOURCE
, conf
->update_if
);
2454 bgp_bfd_peer_group2peer_copy(conf
, peer
);
2457 /* Peer group's remote AS configuration. */
2458 int peer_group_remote_as(struct bgp
*bgp
, const char *group_name
, as_t
*as
,
2461 struct peer_group
*group
;
2463 struct listnode
*node
, *nnode
;
2465 group
= peer_group_lookup(bgp
, group_name
);
2469 if ((as_type
== group
->conf
->as_type
) && (group
->conf
->as
== *as
))
2473 /* When we setup peer-group AS number all peer group member's AS
2474 number must be updated to same number. */
2475 peer_as_change(group
->conf
, *as
, as_type
);
2477 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer
)) {
2478 if (((peer
->as_type
== AS_SPECIFIED
) && peer
->as
!= *as
)
2479 || (peer
->as_type
!= as_type
))
2480 peer_as_change(peer
, *as
, as_type
);
2486 int peer_group_delete(struct peer_group
*group
)
2490 struct prefix
*prefix
;
2492 struct listnode
*node
, *nnode
;
2497 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer
)) {
2498 other
= peer
->doppelganger
;
2500 if (other
&& other
->status
!= Deleted
) {
2501 other
->group
= NULL
;
2505 list_delete_and_null(&group
->peer
);
2507 for (afi
= AFI_IP
; afi
< AFI_MAX
; afi
++) {
2508 for (ALL_LIST_ELEMENTS(group
->listen_range
[afi
], node
, nnode
,
2510 prefix_free(prefix
);
2512 list_delete_and_null(&group
->listen_range
[afi
]);
2515 XFREE(MTYPE_PEER_GROUP_HOST
, group
->name
);
2518 bfd_info_free(&(group
->conf
->bfd_info
));
2520 group
->conf
->group
= NULL
;
2521 peer_delete(group
->conf
);
2523 /* Delete from all peer_group list. */
2524 listnode_delete(bgp
->group
, group
);
2526 peer_group_free(group
);
2531 int peer_group_remote_as_delete(struct peer_group
*group
)
2533 struct peer
*peer
, *other
;
2534 struct listnode
*node
, *nnode
;
2536 if ((group
->conf
->as_type
== AS_UNSPECIFIED
)
2537 || ((!group
->conf
->as
) && (group
->conf
->as_type
== AS_SPECIFIED
)))
2540 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer
)) {
2541 other
= peer
->doppelganger
;
2545 if (other
&& other
->status
!= Deleted
) {
2546 other
->group
= NULL
;
2550 list_delete_all_node(group
->peer
);
2552 group
->conf
->as
= 0;
2553 group
->conf
->as_type
= AS_UNSPECIFIED
;
2558 int peer_group_listen_range_add(struct peer_group
*group
, struct prefix
*range
)
2560 struct prefix
*prefix
;
2561 struct listnode
*node
, *nnode
;
2564 afi
= family2afi(range
->family
);
2566 /* Group needs remote AS configured. */
2567 if (group
->conf
->as_type
== AS_UNSPECIFIED
)
2568 return BGP_ERR_PEER_GROUP_NO_REMOTE_AS
;
2570 /* Ensure no duplicates. Currently we don't care about overlaps. */
2571 for (ALL_LIST_ELEMENTS(group
->listen_range
[afi
], node
, nnode
, prefix
)) {
2572 if (prefix_same(range
, prefix
))
2576 prefix
= prefix_new();
2577 prefix_copy(prefix
, range
);
2578 listnode_add(group
->listen_range
[afi
], prefix
);
2582 int peer_group_listen_range_del(struct peer_group
*group
, struct prefix
*range
)
2584 struct prefix
*prefix
, prefix2
;
2585 struct listnode
*node
, *nnode
;
2588 char buf
[PREFIX2STR_BUFFER
];
2590 afi
= family2afi(range
->family
);
2592 /* Identify the listen range. */
2593 for (ALL_LIST_ELEMENTS(group
->listen_range
[afi
], node
, nnode
, prefix
)) {
2594 if (prefix_same(range
, prefix
))
2599 return BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_NOT_FOUND
;
2601 prefix2str(prefix
, buf
, sizeof(buf
));
2603 /* Dispose off any dynamic neighbors that exist due to this listen range
2605 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer
)) {
2606 if (!peer_dynamic_neighbor(peer
))
2609 sockunion2hostprefix(&peer
->su
, &prefix2
);
2610 if (prefix_match(prefix
, &prefix2
)) {
2611 if (bgp_debug_neighbor_events(peer
))
2613 "Deleting dynamic neighbor %s group %s upon "
2614 "delete of listen range %s",
2615 peer
->host
, group
->name
, buf
);
2620 /* Get rid of the listen range */
2621 listnode_delete(group
->listen_range
[afi
], prefix
);
2626 /* Bind specified peer to peer group. */
2627 int peer_group_bind(struct bgp
*bgp
, union sockunion
*su
, struct peer
*peer
,
2628 struct peer_group
*group
, as_t
*as
)
2630 int first_member
= 0;
2633 int cap_enhe_preset
= 0;
2635 /* Lookup the peer. */
2637 peer
= peer_lookup(bgp
, su
);
2639 /* The peer exist, bind it to the peer-group */
2641 /* When the peer already belongs to a peer-group, check the
2643 if (peer_group_active(peer
)) {
2645 /* The peer is already bound to the peer-group,
2648 if (strcmp(peer
->group
->name
, group
->name
) == 0)
2651 return BGP_ERR_PEER_GROUP_CANT_CHANGE
;
2654 /* The peer has not specified a remote-as, inherit it from the
2656 if (peer
->as_type
== AS_UNSPECIFIED
) {
2657 peer
->as_type
= group
->conf
->as_type
;
2658 peer
->as
= group
->conf
->as
;
2661 if (!group
->conf
->as
) {
2662 if (peer_sort(group
->conf
) != BGP_PEER_INTERNAL
2663 && peer_sort(group
->conf
) != peer_sort(peer
)) {
2666 return BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT
;
2669 if (peer_sort(group
->conf
) == BGP_PEER_INTERNAL
)
2673 if (CHECK_FLAG(peer
->flags
, PEER_FLAG_CAPABILITY_ENHE
))
2674 cap_enhe_preset
= 1;
2676 peer_group2peer_config_copy(group
, peer
);
2679 * Capability extended-nexthop is enabled for an interface
2681 * default. So, fix that up here.
2683 if (peer
->conf_if
&& cap_enhe_preset
)
2684 peer_flag_set(peer
, PEER_FLAG_CAPABILITY_ENHE
);
2686 FOREACH_AFI_SAFI (afi
, safi
) {
2687 if (group
->conf
->afc
[afi
][safi
]) {
2688 peer
->afc
[afi
][safi
] = 1;
2690 if (peer_af_find(peer
, afi
, safi
)
2691 || peer_af_create(peer
, afi
, safi
)) {
2692 peer_group2peer_config_copy_af(
2693 group
, peer
, afi
, safi
);
2695 } else if (peer
->afc
[afi
][safi
])
2696 peer_deactivate(peer
, afi
, safi
);
2700 assert(group
&& peer
->group
== group
);
2702 struct listnode
*pn
;
2703 pn
= listnode_lookup(bgp
->peer
, peer
);
2704 list_delete_node(bgp
->peer
, pn
);
2705 peer
->group
= group
;
2706 listnode_add_sort(bgp
->peer
, peer
);
2708 peer
= peer_lock(peer
); /* group->peer list reference */
2709 listnode_add(group
->peer
, peer
);
2713 /* Advertisement-interval reset */
2714 if (!CHECK_FLAG(group
->conf
->config
,
2715 PEER_CONFIG_ROUTEADV
)) {
2716 if (peer_sort(group
->conf
) == BGP_PEER_IBGP
)
2717 group
->conf
->v_routeadv
=
2718 BGP_DEFAULT_IBGP_ROUTEADV
;
2720 group
->conf
->v_routeadv
=
2721 BGP_DEFAULT_EBGP_ROUTEADV
;
2724 /* ebgp-multihop reset */
2725 if (peer_sort(group
->conf
) == BGP_PEER_IBGP
)
2726 group
->conf
->ttl
= MAXTTL
;
2728 /* local-as reset */
2729 if (peer_sort(group
->conf
) != BGP_PEER_EBGP
) {
2730 group
->conf
->change_local_as
= 0;
2731 UNSET_FLAG(peer
->flags
,
2732 PEER_FLAG_LOCAL_AS_NO_PREPEND
);
2733 UNSET_FLAG(peer
->flags
,
2734 PEER_FLAG_LOCAL_AS_REPLACE_AS
);
2738 SET_FLAG(peer
->flags
, PEER_FLAG_CONFIG_NODE
);
2740 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
)) {
2741 peer
->last_reset
= PEER_DOWN_RMAP_BIND
;
2742 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
2743 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
2745 bgp_session_reset(peer
);
2749 /* Create a new peer. */
2751 if ((group
->conf
->as_type
== AS_SPECIFIED
)
2752 && (!group
->conf
->as
)) {
2753 return BGP_ERR_PEER_GROUP_NO_REMOTE_AS
;
2756 peer
= peer_create(su
, NULL
, bgp
, bgp
->as
, group
->conf
->as
,
2757 group
->conf
->as_type
, 0, 0, group
);
2759 peer
= peer_lock(peer
); /* group->peer list reference */
2760 listnode_add(group
->peer
, peer
);
2762 peer_group2peer_config_copy(group
, peer
);
2764 /* If the peer-group is active for this afi/safi then activate
2766 FOREACH_AFI_SAFI (afi
, safi
) {
2767 if (group
->conf
->afc
[afi
][safi
]) {
2768 peer
->afc
[afi
][safi
] = 1;
2769 peer_af_create(peer
, afi
, safi
);
2770 peer_group2peer_config_copy_af(group
, peer
, afi
,
2772 } else if (peer
->afc
[afi
][safi
])
2773 peer_deactivate(peer
, afi
, safi
);
2776 SET_FLAG(peer
->flags
, PEER_FLAG_CONFIG_NODE
);
2778 /* Set up peer's events and timers. */
2779 if (peer_active(peer
))
2780 bgp_timer_set(peer
);
2786 int peer_group_unbind(struct bgp
*bgp
, struct peer
*peer
,
2787 struct peer_group
*group
)
2793 if (group
!= peer
->group
)
2794 return BGP_ERR_PEER_GROUP_MISMATCH
;
2796 FOREACH_AFI_SAFI (afi
, safi
) {
2797 if (peer
->afc
[afi
][safi
]) {
2798 peer
->afc
[afi
][safi
] = 0;
2799 peer_af_flag_reset(peer
, afi
, safi
);
2801 if (peer_af_delete(peer
, afi
, safi
) != 0) {
2803 "couldn't delete af structure for peer %s",
2809 assert(listnode_lookup(group
->peer
, peer
));
2810 peer_unlock(peer
); /* peer group list reference */
2811 listnode_delete(group
->peer
, peer
);
2813 other
= peer
->doppelganger
;
2815 if (group
->conf
->as
) {
2817 if (other
&& other
->status
!= Deleted
) {
2820 listnode_delete(group
->peer
, other
);
2822 other
->group
= NULL
;
2828 bgp_bfd_deregister_peer(peer
);
2829 peer_global_config_reset(peer
);
2831 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
)) {
2832 peer
->last_reset
= PEER_DOWN_RMAP_UNBIND
;
2833 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
2834 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
2836 bgp_session_reset(peer
);
2841 static int bgp_startup_timer_expire(struct thread
*thread
)
2845 bgp
= THREAD_ARG(thread
);
2846 bgp
->t_startup
= NULL
;
2851 /* BGP instance creation by `router bgp' commands. */
2852 static struct bgp
*bgp_create(as_t
*as
, const char *name
,
2853 enum bgp_instance_type inst_type
)
2859 if ((bgp
= XCALLOC(MTYPE_BGP
, sizeof(struct bgp
))) == NULL
)
2862 if (BGP_DEBUG(zebra
, ZEBRA
)) {
2863 if (inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)
2864 zlog_debug("Creating Default VRF, AS %u", *as
);
2866 zlog_debug("Creating %s %s, AS %u",
2867 (inst_type
== BGP_INSTANCE_TYPE_VRF
)
2874 bgp
->heuristic_coalesce
= true;
2875 bgp
->inst_type
= inst_type
;
2876 bgp
->vrf_id
= (inst_type
== BGP_INSTANCE_TYPE_DEFAULT
) ? VRF_DEFAULT
2878 bgp
->peer_self
= peer_new(bgp
);
2879 if (bgp
->peer_self
->host
)
2880 XFREE(MTYPE_BGP_PEER_HOST
, bgp
->peer_self
->host
);
2881 bgp
->peer_self
->host
=
2882 XSTRDUP(MTYPE_BGP_PEER_HOST
, "Static announcement");
2883 if (bgp
->peer_self
->hostname
!= NULL
) {
2884 XFREE(MTYPE_BGP_PEER_HOST
, bgp
->peer_self
->hostname
);
2885 bgp
->peer_self
->hostname
= NULL
;
2887 if (cmd_hostname_get())
2888 bgp
->peer_self
->hostname
=
2889 XSTRDUP(MTYPE_BGP_PEER_HOST
, cmd_hostname_get());
2891 if (bgp
->peer_self
->domainname
!= NULL
) {
2892 XFREE(MTYPE_BGP_PEER_HOST
, bgp
->peer_self
->domainname
);
2893 bgp
->peer_self
->domainname
= NULL
;
2895 if (cmd_domainname_get())
2896 bgp
->peer_self
->domainname
=
2897 XSTRDUP(MTYPE_BGP_PEER_HOST
, cmd_domainname_get());
2898 bgp
->peer
= list_new();
2899 bgp
->peer
->cmp
= (int (*)(void *, void *))peer_cmp
;
2900 bgp
->peerhash
= hash_create(peer_hash_key_make
, peer_hash_same
,
2902 bgp
->peerhash
->max_size
= BGP_PEER_MAX_HASH_SIZE
;
2904 bgp
->group
= list_new();
2905 bgp
->group
->cmp
= (int (*)(void *, void *))peer_group_cmp
;
2907 FOREACH_AFI_SAFI (afi
, safi
) {
2908 bgp
->route
[afi
][safi
] = bgp_table_init(afi
, safi
);
2909 bgp
->aggregate
[afi
][safi
] = bgp_table_init(afi
, safi
);
2910 bgp
->rib
[afi
][safi
] = bgp_table_init(afi
, safi
);
2912 /* Enable maximum-paths */
2913 bgp_maximum_paths_set(bgp
, afi
, safi
, BGP_PEER_EBGP
,
2915 bgp_maximum_paths_set(bgp
, afi
, safi
, BGP_PEER_IBGP
,
2919 bgp
->v_update_delay
= BGP_UPDATE_DELAY_DEF
;
2920 bgp
->default_local_pref
= BGP_DEFAULT_LOCAL_PREF
;
2921 bgp
->default_subgroup_pkt_queue_max
=
2922 BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX
;
2923 bgp
->default_holdtime
= BGP_DEFAULT_HOLDTIME
;
2924 bgp
->default_keepalive
= BGP_DEFAULT_KEEPALIVE
;
2925 bgp
->restart_time
= BGP_DEFAULT_RESTART_TIME
;
2926 bgp
->stalepath_time
= BGP_DEFAULT_STALEPATH_TIME
;
2927 bgp
->dynamic_neighbors_limit
= BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT
;
2928 bgp
->dynamic_neighbors_count
= 0;
2929 #if DFLT_BGP_IMPORT_CHECK
2930 bgp_flag_set(bgp
, BGP_FLAG_IMPORT_CHECK
);
2932 #if DFLT_BGP_SHOW_HOSTNAME
2933 bgp_flag_set(bgp
, BGP_FLAG_SHOW_HOSTNAME
);
2935 #if DFLT_BGP_LOG_NEIGHBOR_CHANGES
2936 bgp_flag_set(bgp
, BGP_FLAG_LOG_NEIGHBOR_CHANGES
);
2938 #if DFLT_BGP_DETERMINISTIC_MED
2939 bgp_flag_set(bgp
, BGP_FLAG_DETERMINISTIC_MED
);
2941 bgp
->addpath_tx_id
= BGP_ADDPATH_TX_ID_FOR_DEFAULT_ORIGINATE
;
2946 if (inst_type
!= BGP_INSTANCE_TYPE_VRF
) {
2947 bgp
->rfapi
= bgp_rfapi_new(bgp
);
2949 assert(bgp
->rfapi_cfg
);
2951 #endif /* ENABLE_BGP_VNC */
2953 for (afi
= AFI_IP
; afi
< AFI_MAX
; afi
++) {
2954 bgp
->vpn_policy
[afi
].tovpn_label
= MPLS_LABEL_NONE
;
2955 bgp
->vpn_policy
[afi
].tovpn_zebra_vrf_label_last_sent
=
2959 bgp
->name
= XSTRDUP(MTYPE_BGP
, name
);
2961 /* TODO - The startup timer needs to be run for the whole of BGP
2963 thread_add_timer(bm
->master
, bgp_startup_timer_expire
, bgp
,
2964 bgp
->restart_time
, &bgp
->t_startup
);
2967 atomic_store_explicit(&bgp
->wpkt_quanta
, BGP_WRITE_PACKET_MAX
,
2968 memory_order_relaxed
);
2969 atomic_store_explicit(&bgp
->rpkt_quanta
, BGP_READ_PACKET_MAX
,
2970 memory_order_relaxed
);
2971 bgp
->coalesce_time
= BGP_DEFAULT_SUBGROUP_COALESCE_TIME
;
2975 update_bgp_group_init(bgp
);
2980 /* Return the "default VRF" instance of BGP. */
2981 struct bgp
*bgp_get_default(void)
2984 struct listnode
*node
, *nnode
;
2986 for (ALL_LIST_ELEMENTS(bm
->bgp
, node
, nnode
, bgp
))
2987 if (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)
2992 /* Lookup BGP entry. */
2993 struct bgp
*bgp_lookup(as_t as
, const char *name
)
2996 struct listnode
*node
, *nnode
;
2998 for (ALL_LIST_ELEMENTS(bm
->bgp
, node
, nnode
, bgp
))
3000 && ((bgp
->name
== NULL
&& name
== NULL
)
3001 || (bgp
->name
&& name
&& strcmp(bgp
->name
, name
) == 0)))
3006 /* Lookup BGP structure by view name. */
3007 struct bgp
*bgp_lookup_by_name(const char *name
)
3010 struct listnode
*node
, *nnode
;
3012 for (ALL_LIST_ELEMENTS(bm
->bgp
, node
, nnode
, bgp
))
3013 if ((bgp
->name
== NULL
&& name
== NULL
)
3014 || (bgp
->name
&& name
&& strcmp(bgp
->name
, name
) == 0))
3019 /* Lookup BGP instance based on VRF id. */
3020 /* Note: Only to be used for incoming messages from Zebra. */
3021 struct bgp
*bgp_lookup_by_vrf_id(vrf_id_t vrf_id
)
3025 /* Lookup VRF (in tree) and follow link. */
3026 vrf
= vrf_lookup_by_id(vrf_id
);
3029 return (vrf
->info
) ? (struct bgp
*)vrf
->info
: NULL
;
3032 /* handle socket creation or deletion, if necessary
3033 * this is called for all new BGP instances
3035 int bgp_handle_socket(struct bgp
*bgp
, struct vrf
*vrf
, vrf_id_t old_vrf_id
,
3040 /* Create BGP server socket, if listen mode not disabled */
3041 if (!bgp
|| bgp_option_check(BGP_OPT_NO_LISTEN
))
3043 if (bgp
->name
&& bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
&& vrf
) {
3045 * suppress vrf socket
3047 if (create
== FALSE
) {
3048 if (vrf_is_mapped_on_netns(vrf
->vrf_id
))
3049 bgp_close_vrf_socket(bgp
);
3051 ret
= bgp_check_main_socket(create
, bgp
);
3055 * if vrf_id did not change
3057 if (vrf
->vrf_id
== old_vrf_id
)
3059 if (old_vrf_id
!= VRF_UNKNOWN
) {
3060 /* look for old socket. close it. */
3061 bgp_close_vrf_socket(bgp
);
3063 /* if backend is not yet identified ( VRF_UNKNOWN) then
3064 * creation will be done later
3066 if (vrf
->vrf_id
== VRF_UNKNOWN
)
3068 /* if BGP VRF instance requested
3069 * if backend is NETNS, create BGP server socket in the NETNS
3071 if (vrf_is_mapped_on_netns(bgp
->vrf_id
)) {
3072 ret
= bgp_socket(bgp
, bm
->port
, bm
->address
);
3074 return BGP_ERR_INVALID_VALUE
;
3078 /* if BGP VRF instance requested or VRF lite backend
3079 * if BGP non VRF instance, create it
3080 * if not already done
3082 return bgp_check_main_socket(create
, bgp
);
3085 /* Called from VTY commands. */
3086 int bgp_get(struct bgp
**bgp_val
, as_t
*as
, const char *name
,
3087 enum bgp_instance_type inst_type
)
3090 struct vrf
*vrf
= NULL
;
3092 /* Multiple instance check. */
3093 if (bgp_option_check(BGP_OPT_MULTIPLE_INSTANCE
)) {
3095 bgp
= bgp_lookup_by_name(name
);
3097 bgp
= bgp_get_default();
3099 /* Already exists. */
3101 if (bgp
->as
!= *as
) {
3103 return BGP_ERR_INSTANCE_MISMATCH
;
3105 if (bgp
->inst_type
!= inst_type
)
3106 return BGP_ERR_INSTANCE_MISMATCH
;
3111 /* BGP instance name can not be specified for single instance.
3114 return BGP_ERR_MULTIPLE_INSTANCE_NOT_SET
;
3116 /* Get default BGP structure if exists. */
3117 bgp
= bgp_get_default();
3120 if (bgp
->as
!= *as
) {
3122 return BGP_ERR_AS_MISMATCH
;
3129 bgp
= bgp_create(as
, name
, inst_type
);
3130 bgp_router_id_set(bgp
, &bgp
->router_id_zebra
);
3131 bgp_address_init(bgp
);
3132 bgp_tip_hash_init(bgp
);
3136 bgp
->t_rmap_def_originate_eval
= NULL
;
3138 /* If Default instance or VRF, link to the VRF structure, if present. */
3139 if (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
3140 || bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
) {
3141 vrf
= bgp_vrf_lookup_by_instance_type(bgp
);
3143 bgp_vrf_link(bgp
, vrf
);
3145 /* BGP server socket already processed if BGP instance
3146 * already part of the list
3148 bgp_handle_socket(bgp
, vrf
, VRF_UNKNOWN
, true);
3149 listnode_add(bm
->bgp
, bgp
);
3151 if (IS_BGP_INST_KNOWN_TO_ZEBRA(bgp
))
3152 bgp_zebra_instance_register(bgp
);
3159 * Make BGP instance "up". Applies only to VRFs (non-default) and
3160 * implies the VRF has been learnt from Zebra.
3162 void bgp_instance_up(struct bgp
*bgp
)
3165 struct listnode
*node
, *next
;
3167 /* Register with zebra. */
3168 bgp_zebra_instance_register(bgp
);
3170 /* Kick off any peers that may have been configured. */
3171 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, next
, peer
)) {
3172 if (!BGP_PEER_START_SUPPRESSED(peer
))
3173 BGP_EVENT_ADD(peer
, BGP_Start
);
3176 /* Process any networks that have been configured. */
3177 bgp_static_add(bgp
);
3181 * Make BGP instance "down". Applies only to VRFs (non-default) and
3182 * implies the VRF has been deleted by Zebra.
3184 void bgp_instance_down(struct bgp
*bgp
)
3187 struct listnode
*node
;
3188 struct listnode
*next
;
3191 if (bgp
->t_rmap_def_originate_eval
) {
3192 BGP_TIMER_OFF(bgp
->t_rmap_def_originate_eval
);
3193 bgp_unlock(bgp
); /* TODO - This timer is started with a lock -
3197 /* Bring down peers, so corresponding routes are purged. */
3198 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, next
, peer
)) {
3199 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
))
3200 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
3201 BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN
);
3203 bgp_session_reset(peer
);
3206 /* Purge network and redistributed routes. */
3207 bgp_purge_static_redist_routes(bgp
);
3209 /* Cleanup registered nexthops (flags) */
3210 bgp_cleanup_nexthops(bgp
);
3213 /* Delete BGP instance. */
3214 int bgp_delete(struct bgp
*bgp
)
3217 struct peer_group
*group
;
3218 struct listnode
*node
, *next
;
3223 THREAD_OFF(bgp
->t_startup
);
3225 if (BGP_DEBUG(zebra
, ZEBRA
)) {
3226 if (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)
3227 zlog_debug("Deleting Default VRF");
3229 zlog_debug("Deleting %s %s",
3230 (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
)
3236 /* unmap from RT list */
3237 bgp_evpn_vrf_delete(bgp
);
3240 if (bgp
->t_rmap_def_originate_eval
) {
3241 BGP_TIMER_OFF(bgp
->t_rmap_def_originate_eval
);
3242 bgp_unlock(bgp
); /* TODO - This timer is started with a lock -
3246 /* Inform peers we're going down. */
3247 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, next
, peer
)) {
3248 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
))
3249 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
3250 BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN
);
3253 /* Delete static routes (networks). */
3254 bgp_static_delete(bgp
);
3256 /* Unset redistribution. */
3257 for (afi
= AFI_IP
; afi
< AFI_MAX
; afi
++)
3258 for (i
= 0; i
< ZEBRA_ROUTE_MAX
; i
++)
3259 if (i
!= ZEBRA_ROUTE_BGP
)
3260 bgp_redistribute_unset(bgp
, afi
, i
, 0);
3262 /* Free peers and peer-groups. */
3263 for (ALL_LIST_ELEMENTS(bgp
->group
, node
, next
, group
))
3264 peer_group_delete(group
);
3266 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, next
, peer
))
3269 if (bgp
->peer_self
) {
3270 peer_delete(bgp
->peer_self
);
3271 bgp
->peer_self
= NULL
;
3274 update_bgp_group_free(bgp
);
3276 /* TODO - Other memory may need to be freed - e.g., NHT */
3281 bgp_cleanup_routes(bgp
);
3283 for (afi
= 0; afi
< AFI_MAX
; ++afi
) {
3284 if (!bgp
->vpn_policy
[afi
].import_redirect_rtlist
)
3287 &bgp
->vpn_policy
[afi
]
3288 .import_redirect_rtlist
);
3289 bgp
->vpn_policy
[afi
].import_redirect_rtlist
= NULL
;
3291 /* Remove visibility via the master list - there may however still be
3292 * routes to be processed still referencing the struct bgp.
3294 listnode_delete(bm
->bgp
, bgp
);
3296 /* Deregister from Zebra, if needed */
3297 if (IS_BGP_INST_KNOWN_TO_ZEBRA(bgp
))
3298 bgp_zebra_instance_deregister(bgp
);
3300 /* Free interfaces in this instance. */
3303 vrf
= bgp_vrf_lookup_by_instance_type(bgp
);
3304 bgp_handle_socket(bgp
, vrf
, VRF_UNKNOWN
, false);
3306 bgp_vrf_unlink(bgp
, vrf
);
3308 thread_master_free_unused(bm
->master
);
3309 bgp_unlock(bgp
); /* initial reference */
3314 void bgp_free(struct bgp
*bgp
)
3318 struct bgp_table
*table
;
3319 struct bgp_node
*rn
;
3320 struct bgp_rmap
*rmap
;
3324 list_delete_and_null(&bgp
->group
);
3325 list_delete_and_null(&bgp
->peer
);
3327 if (bgp
->peerhash
) {
3328 hash_free(bgp
->peerhash
);
3329 bgp
->peerhash
= NULL
;
3332 FOREACH_AFI_SAFI (afi
, safi
) {
3333 /* Special handling for 2-level routing tables. */
3334 if (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
3335 || safi
== SAFI_EVPN
) {
3336 for (rn
= bgp_table_top(bgp
->rib
[afi
][safi
]); rn
;
3337 rn
= bgp_route_next(rn
)) {
3338 table
= (struct bgp_table
*)rn
->info
;
3339 bgp_table_finish(&table
);
3342 if (bgp
->route
[afi
][safi
])
3343 bgp_table_finish(&bgp
->route
[afi
][safi
]);
3344 if (bgp
->aggregate
[afi
][safi
])
3345 bgp_table_finish(&bgp
->aggregate
[afi
][safi
]);
3346 if (bgp
->rib
[afi
][safi
])
3347 bgp_table_finish(&bgp
->rib
[afi
][safi
]);
3348 rmap
= &bgp
->table_map
[afi
][safi
];
3350 XFREE(MTYPE_ROUTE_MAP_NAME
, rmap
->name
);
3353 bgp_scan_finish(bgp
);
3354 bgp_address_destroy(bgp
);
3355 bgp_tip_hash_destroy(bgp
);
3357 bgp_evpn_cleanup(bgp
);
3360 XFREE(MTYPE_BGP
, bgp
->name
);
3362 XFREE(MTYPE_BGP
, bgp
);
3365 struct peer
*peer_lookup_by_conf_if(struct bgp
*bgp
, const char *conf_if
)
3368 struct listnode
*node
, *nnode
;
3374 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
))
3375 if (peer
->conf_if
&& !strcmp(peer
->conf_if
, conf_if
)
3376 && !CHECK_FLAG(peer
->sflags
,
3377 PEER_STATUS_ACCEPT_PEER
))
3379 } else if (bm
->bgp
!= NULL
) {
3380 struct listnode
*bgpnode
, *nbgpnode
;
3382 for (ALL_LIST_ELEMENTS(bm
->bgp
, bgpnode
, nbgpnode
, bgp
))
3383 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
))
3385 && !strcmp(peer
->conf_if
, conf_if
)
3386 && !CHECK_FLAG(peer
->sflags
,
3387 PEER_STATUS_ACCEPT_PEER
))
3393 struct peer
*peer_lookup_by_hostname(struct bgp
*bgp
, const char *hostname
)
3396 struct listnode
*node
, *nnode
;
3402 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
))
3403 if (peer
->hostname
&& !strcmp(peer
->hostname
, hostname
)
3404 && !CHECK_FLAG(peer
->sflags
,
3405 PEER_STATUS_ACCEPT_PEER
))
3407 } else if (bm
->bgp
!= NULL
) {
3408 struct listnode
*bgpnode
, *nbgpnode
;
3410 for (ALL_LIST_ELEMENTS(bm
->bgp
, bgpnode
, nbgpnode
, bgp
))
3411 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
))
3413 && !strcmp(peer
->hostname
, hostname
)
3414 && !CHECK_FLAG(peer
->sflags
,
3415 PEER_STATUS_ACCEPT_PEER
))
3421 struct peer
*peer_lookup(struct bgp
*bgp
, union sockunion
*su
)
3423 struct peer
*peer
= NULL
;
3424 struct peer tmp_peer
;
3426 memset(&tmp_peer
, 0, sizeof(struct peer
));
3429 * We do not want to find the doppelganger peer so search for the peer
3431 * the hash that has PEER_FLAG_CONFIG_NODE
3433 SET_FLAG(tmp_peer
.flags
, PEER_FLAG_CONFIG_NODE
);
3438 peer
= hash_lookup(bgp
->peerhash
, &tmp_peer
);
3439 } else if (bm
->bgp
!= NULL
) {
3440 struct listnode
*bgpnode
, *nbgpnode
;
3442 for (ALL_LIST_ELEMENTS(bm
->bgp
, bgpnode
, nbgpnode
, bgp
)) {
3443 /* Skip VRFs Lite only, this function will not be
3444 * invoked without an instance
3445 * when examining VRFs.
3447 if ((bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
)
3448 && !vrf_is_mapped_on_netns(bgp
->vrf_id
))
3451 peer
= hash_lookup(bgp
->peerhash
, &tmp_peer
);
3461 struct peer
*peer_create_bind_dynamic_neighbor(struct bgp
*bgp
,
3462 union sockunion
*su
,
3463 struct peer_group
*group
)
3469 /* Create peer first; we've already checked group config is valid. */
3470 peer
= peer_create(su
, NULL
, bgp
, bgp
->as
, group
->conf
->as
,
3471 group
->conf
->as_type
, 0, 0, group
);
3476 peer
= peer_lock(peer
);
3477 listnode_add(group
->peer
, peer
);
3479 peer_group2peer_config_copy(group
, peer
);
3482 * Bind peer for all AFs configured for the group. We don't call
3483 * peer_group_bind as that is sub-optimal and does some stuff we don't
3486 FOREACH_AFI_SAFI (afi
, safi
) {
3487 if (!group
->conf
->afc
[afi
][safi
])
3489 peer
->afc
[afi
][safi
] = 1;
3491 if (!peer_af_find(peer
, afi
, safi
))
3492 peer_af_create(peer
, afi
, safi
);
3494 peer_group2peer_config_copy_af(group
, peer
, afi
, safi
);
3497 /* Mark as dynamic, but also as a "config node" for other things to
3499 SET_FLAG(peer
->flags
, PEER_FLAG_DYNAMIC_NEIGHBOR
);
3500 SET_FLAG(peer
->flags
, PEER_FLAG_CONFIG_NODE
);
3506 peer_group_lookup_dynamic_neighbor_range(struct peer_group
*group
,
3507 struct prefix
*prefix
)
3509 struct listnode
*node
, *nnode
;
3510 struct prefix
*range
;
3513 afi
= family2afi(prefix
->family
);
3515 if (group
->listen_range
[afi
])
3516 for (ALL_LIST_ELEMENTS(group
->listen_range
[afi
], node
, nnode
,
3518 if (prefix_match(range
, prefix
))
3525 peer_group_lookup_dynamic_neighbor(struct bgp
*bgp
, struct prefix
*prefix
,
3526 struct prefix
**listen_range
)
3528 struct prefix
*range
= NULL
;
3529 struct peer_group
*group
= NULL
;
3530 struct listnode
*node
, *nnode
;
3532 *listen_range
= NULL
;
3534 for (ALL_LIST_ELEMENTS(bgp
->group
, node
, nnode
, group
))
3535 if ((range
= peer_group_lookup_dynamic_neighbor_range(
3538 } else if (bm
->bgp
!= NULL
) {
3539 struct listnode
*bgpnode
, *nbgpnode
;
3541 for (ALL_LIST_ELEMENTS(bm
->bgp
, bgpnode
, nbgpnode
, bgp
))
3542 for (ALL_LIST_ELEMENTS(bgp
->group
, node
, nnode
, group
))
3543 if ((range
= peer_group_lookup_dynamic_neighbor_range(
3549 *listen_range
= range
;
3550 return (group
&& range
) ? group
: NULL
;
3553 struct peer
*peer_lookup_dynamic_neighbor(struct bgp
*bgp
, union sockunion
*su
)
3555 struct peer_group
*group
;
3558 struct prefix prefix
;
3559 struct prefix
*listen_range
;
3561 char buf
[PREFIX2STR_BUFFER
];
3562 char buf1
[PREFIX2STR_BUFFER
];
3564 sockunion2hostprefix(su
, &prefix
);
3566 /* See if incoming connection matches a configured listen range. */
3567 group
= peer_group_lookup_dynamic_neighbor(bgp
, &prefix
, &listen_range
);
3578 prefix2str(&prefix
, buf
, sizeof(buf
));
3579 prefix2str(listen_range
, buf1
, sizeof(buf1
));
3581 if (bgp_debug_neighbor_events(NULL
))
3583 "Dynamic Neighbor %s matches group %s listen range %s",
3584 buf
, group
->name
, buf1
);
3586 /* Are we within the listen limit? */
3587 dncount
= gbgp
->dynamic_neighbors_count
;
3589 if (dncount
>= gbgp
->dynamic_neighbors_limit
) {
3590 if (bgp_debug_neighbor_events(NULL
))
3591 zlog_debug("Dynamic Neighbor %s rejected - at limit %d",
3592 inet_sutop(su
, buf
),
3593 gbgp
->dynamic_neighbors_limit
);
3597 /* Ensure group is not disabled. */
3598 if (CHECK_FLAG(group
->conf
->flags
, PEER_FLAG_SHUTDOWN
)) {
3599 if (bgp_debug_neighbor_events(NULL
))
3601 "Dynamic Neighbor %s rejected - group %s disabled",
3606 /* Check that at least one AF is activated for the group. */
3607 if (!peer_group_af_configured(group
)) {
3608 if (bgp_debug_neighbor_events(NULL
))
3610 "Dynamic Neighbor %s rejected - no AF activated for group %s",
3615 /* Create dynamic peer and bind to associated group. */
3616 peer
= peer_create_bind_dynamic_neighbor(gbgp
, su
, group
);
3619 gbgp
->dynamic_neighbors_count
= ++dncount
;
3621 if (bgp_debug_neighbor_events(peer
))
3622 zlog_debug("%s Dynamic Neighbor added, group %s count %d",
3623 peer
->host
, group
->name
, dncount
);
3628 void peer_drop_dynamic_neighbor(struct peer
*peer
)
3631 if (peer
->group
&& peer
->group
->bgp
) {
3632 dncount
= peer
->group
->bgp
->dynamic_neighbors_count
;
3634 peer
->group
->bgp
->dynamic_neighbors_count
= --dncount
;
3636 if (bgp_debug_neighbor_events(peer
))
3637 zlog_debug("%s dropped from group %s, count %d", peer
->host
,
3638 peer
->group
->name
, dncount
);
3642 /* If peer is configured at least one address family return 1. */
3643 int peer_active(struct peer
*peer
)
3645 if (BGP_PEER_SU_UNSPEC(peer
))
3647 if (peer
->afc
[AFI_IP
][SAFI_UNICAST
] || peer
->afc
[AFI_IP
][SAFI_MULTICAST
]
3648 || peer
->afc
[AFI_IP
][SAFI_LABELED_UNICAST
]
3649 || peer
->afc
[AFI_IP
][SAFI_MPLS_VPN
] || peer
->afc
[AFI_IP
][SAFI_ENCAP
]
3650 || peer
->afc
[AFI_IP
][SAFI_FLOWSPEC
]
3651 || peer
->afc
[AFI_IP6
][SAFI_UNICAST
]
3652 || peer
->afc
[AFI_IP6
][SAFI_MULTICAST
]
3653 || peer
->afc
[AFI_IP6
][SAFI_LABELED_UNICAST
]
3654 || peer
->afc
[AFI_IP6
][SAFI_MPLS_VPN
]
3655 || peer
->afc
[AFI_IP6
][SAFI_ENCAP
]
3656 || peer
->afc
[AFI_IP6
][SAFI_FLOWSPEC
]
3657 || peer
->afc
[AFI_L2VPN
][SAFI_EVPN
])
3662 /* If peer is negotiated at least one address family return 1. */
3663 int peer_active_nego(struct peer
*peer
)
3665 if (peer
->afc_nego
[AFI_IP
][SAFI_UNICAST
]
3666 || peer
->afc_nego
[AFI_IP
][SAFI_MULTICAST
]
3667 || peer
->afc_nego
[AFI_IP
][SAFI_LABELED_UNICAST
]
3668 || peer
->afc_nego
[AFI_IP
][SAFI_MPLS_VPN
]
3669 || peer
->afc_nego
[AFI_IP
][SAFI_ENCAP
]
3670 || peer
->afc_nego
[AFI_IP
][SAFI_FLOWSPEC
]
3671 || peer
->afc_nego
[AFI_IP6
][SAFI_UNICAST
]
3672 || peer
->afc_nego
[AFI_IP6
][SAFI_MULTICAST
]
3673 || peer
->afc_nego
[AFI_IP6
][SAFI_LABELED_UNICAST
]
3674 || peer
->afc_nego
[AFI_IP6
][SAFI_MPLS_VPN
]
3675 || peer
->afc_nego
[AFI_IP6
][SAFI_ENCAP
]
3676 || peer
->afc_nego
[AFI_IP6
][SAFI_FLOWSPEC
]
3677 || peer
->afc_nego
[AFI_L2VPN
][SAFI_EVPN
])
3682 /* peer_flag_change_type. */
3683 enum peer_change_type
{
3686 peer_change_reset_in
,
3687 peer_change_reset_out
,
3690 static void peer_change_action(struct peer
*peer
, afi_t afi
, safi_t safi
,
3691 enum peer_change_type type
)
3693 if (CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
))
3696 if (peer
->status
!= Established
)
3699 if (type
== peer_change_reset
) {
3700 /* If we're resetting session, we've to delete both peer struct
3702 if ((peer
->doppelganger
)
3703 && (peer
->doppelganger
->status
!= Deleted
)
3704 && (!CHECK_FLAG(peer
->doppelganger
->flags
,
3705 PEER_FLAG_CONFIG_NODE
)))
3706 peer_delete(peer
->doppelganger
);
3708 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
3709 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
3710 } else if (type
== peer_change_reset_in
) {
3711 if (CHECK_FLAG(peer
->cap
, PEER_CAP_REFRESH_OLD_RCV
)
3712 || CHECK_FLAG(peer
->cap
, PEER_CAP_REFRESH_NEW_RCV
))
3713 bgp_route_refresh_send(peer
, afi
, safi
, 0, 0, 0);
3715 if ((peer
->doppelganger
)
3716 && (peer
->doppelganger
->status
!= Deleted
)
3717 && (!CHECK_FLAG(peer
->doppelganger
->flags
,
3718 PEER_FLAG_CONFIG_NODE
)))
3719 peer_delete(peer
->doppelganger
);
3721 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
3722 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
3724 } else if (type
== peer_change_reset_out
) {
3725 update_group_adjust_peer(peer_af_find(peer
, afi
, safi
));
3726 bgp_announce_route(peer
, afi
, safi
);
3730 struct peer_flag_action
{
3734 /* This flag can be set for peer-group member. */
3735 uint8_t not_for_member
;
3737 /* Action when the flag is changed. */
3738 enum peer_change_type type
;
3740 /* Peer down cause */
3744 static const struct peer_flag_action peer_flag_action_list
[] = {
3745 {PEER_FLAG_PASSIVE
, 0, peer_change_reset
},
3746 {PEER_FLAG_SHUTDOWN
, 0, peer_change_reset
},
3747 {PEER_FLAG_DONT_CAPABILITY
, 0, peer_change_none
},
3748 {PEER_FLAG_OVERRIDE_CAPABILITY
, 0, peer_change_none
},
3749 {PEER_FLAG_STRICT_CAP_MATCH
, 0, peer_change_none
},
3750 {PEER_FLAG_DYNAMIC_CAPABILITY
, 0, peer_change_reset
},
3751 {PEER_FLAG_DISABLE_CONNECTED_CHECK
, 0, peer_change_reset
},
3752 {PEER_FLAG_CAPABILITY_ENHE
, 0, peer_change_reset
},
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
},
3766 // PEER_FLAG_DEFAULT_ORIGINATE
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
},
3772 // PEER_FLAG_MAX_PREFIX
3773 // PEER_FLAG_MAX_PREFIX_WARNING
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
},
3780 {PEER_FLAG_ADDPATH_TX_ALL_PATHS
, 1, peer_change_reset
},
3781 {PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS
, 1, peer_change_reset
},
3782 {PEER_FLAG_WEIGHT
, 0, peer_change_reset_in
},
3785 /* Proper action set. */
3786 static int peer_flag_action_set(const struct peer_flag_action
*action_list
,
3787 int size
, struct peer_flag_action
*action
,
3794 const struct peer_flag_action
*match
= NULL
;
3796 /* Check peer's frag action. */
3797 for (i
= 0; i
< size
; i
++) {
3798 match
= &action_list
[i
];
3800 if (match
->flag
== 0)
3803 if (match
->flag
& flag
) {
3806 if (match
->type
== peer_change_reset_in
)
3808 if (match
->type
== peer_change_reset_out
)
3810 if (match
->type
== peer_change_reset
) {
3814 if (match
->not_for_member
)
3815 action
->not_for_member
= 1;
3819 /* Set peer clear type. */
3820 if (reset_in
&& reset_out
)
3821 action
->type
= peer_change_reset
;
3823 action
->type
= peer_change_reset_in
;
3825 action
->type
= peer_change_reset_out
;
3827 action
->type
= peer_change_none
;
3832 static void peer_flag_modify_action(struct peer
*peer
, uint32_t flag
)
3834 if (flag
== PEER_FLAG_SHUTDOWN
) {
3835 if (CHECK_FLAG(peer
->flags
, flag
)) {
3836 if (CHECK_FLAG(peer
->sflags
, PEER_STATUS_NSF_WAIT
))
3837 peer_nsf_stop(peer
);
3839 UNSET_FLAG(peer
->sflags
, PEER_STATUS_PREFIX_OVERFLOW
);
3840 if (peer
->t_pmax_restart
) {
3841 BGP_TIMER_OFF(peer
->t_pmax_restart
);
3842 if (bgp_debug_neighbor_events(peer
))
3844 "%s Maximum-prefix restart timer canceled",
3848 if (CHECK_FLAG(peer
->sflags
, PEER_STATUS_NSF_WAIT
))
3849 peer_nsf_stop(peer
);
3851 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
)) {
3852 char *msg
= peer
->tx_shutdown_message
;
3855 if (!msg
&& peer_group_active(peer
))
3856 msg
= peer
->group
->conf
3857 ->tx_shutdown_message
;
3858 msglen
= msg
? strlen(msg
) : 0;
3863 uint8_t msgbuf
[129];
3866 memcpy(msgbuf
+ 1, msg
, msglen
);
3868 bgp_notify_send_with_data(
3869 peer
, BGP_NOTIFY_CEASE
,
3870 BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN
,
3871 msgbuf
, msglen
+ 1);
3874 peer
, BGP_NOTIFY_CEASE
,
3875 BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN
);
3877 bgp_session_reset(peer
);
3879 peer
->v_start
= BGP_INIT_START_TIMER
;
3880 BGP_EVENT_ADD(peer
, BGP_Stop
);
3882 } else if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
)) {
3883 if (flag
== PEER_FLAG_DYNAMIC_CAPABILITY
)
3884 peer
->last_reset
= PEER_DOWN_CAPABILITY_CHANGE
;
3885 else if (flag
== PEER_FLAG_PASSIVE
)
3886 peer
->last_reset
= PEER_DOWN_PASSIVE_CHANGE
;
3887 else if (flag
== PEER_FLAG_DISABLE_CONNECTED_CHECK
)
3888 peer
->last_reset
= PEER_DOWN_MULTIHOP_CHANGE
;
3890 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
3891 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
3893 bgp_session_reset(peer
);
3896 /* Change specified peer flag. */
3897 static int peer_flag_modify(struct peer
*peer
, uint32_t flag
, int set
)
3901 struct peer_group
*group
;
3902 struct peer
*tmp_peer
;
3903 struct listnode
*node
, *nnode
;
3904 struct peer_flag_action action
;
3906 memset(&action
, 0, sizeof(struct peer_flag_action
));
3907 size
= sizeof peer_flag_action_list
/ sizeof(struct peer_flag_action
);
3909 found
= peer_flag_action_set(peer_flag_action_list
, size
, &action
,
3912 /* No flag action is found. */
3914 return BGP_ERR_INVALID_FLAG
;
3916 /* When unset the peer-group member's flag we have to check
3917 peer-group configuration. */
3918 if (!set
&& peer_group_active(peer
))
3919 if (CHECK_FLAG(peer
->group
->conf
->flags
, flag
)) {
3920 if (flag
== PEER_FLAG_SHUTDOWN
)
3921 return BGP_ERR_PEER_GROUP_SHUTDOWN
;
3924 /* Flag conflict check. */
3925 if (set
&& CHECK_FLAG(peer
->flags
| flag
, PEER_FLAG_STRICT_CAP_MATCH
)
3926 && CHECK_FLAG(peer
->flags
| flag
, PEER_FLAG_OVERRIDE_CAPABILITY
))
3927 return BGP_ERR_PEER_FLAG_CONFLICT
;
3929 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
3930 if (set
&& CHECK_FLAG(peer
->flags
, flag
) == flag
)
3932 if (!set
&& !CHECK_FLAG(peer
->flags
, flag
))
3937 SET_FLAG(peer
->flags
, flag
);
3939 UNSET_FLAG(peer
->flags
, flag
);
3941 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
3942 if (action
.type
== peer_change_reset
)
3943 peer_flag_modify_action(peer
, flag
);
3948 /* peer-group member updates. */
3949 group
= peer
->group
;
3951 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, tmp_peer
)) {
3953 if (set
&& CHECK_FLAG(tmp_peer
->flags
, flag
) == flag
)
3956 if (!set
&& !CHECK_FLAG(tmp_peer
->flags
, flag
))
3960 SET_FLAG(tmp_peer
->flags
, flag
);
3962 UNSET_FLAG(tmp_peer
->flags
, flag
);
3964 if (action
.type
== peer_change_reset
)
3965 peer_flag_modify_action(tmp_peer
, flag
);
3970 int peer_flag_set(struct peer
*peer
, uint32_t flag
)
3972 return peer_flag_modify(peer
, flag
, 1);
3975 int peer_flag_unset(struct peer
*peer
, uint32_t flag
)
3977 return peer_flag_modify(peer
, flag
, 0);
3980 static int peer_af_flag_modify(struct peer
*peer
, afi_t afi
, safi_t safi
,
3981 uint32_t flag
, int set
)
3985 struct listnode
*node
, *nnode
;
3986 struct peer_group
*group
;
3987 struct peer_flag_action action
;
3988 struct peer
*tmp_peer
;
3990 int addpath_tx_used
;
3992 memset(&action
, 0, sizeof(struct peer_flag_action
));
3993 size
= sizeof peer_af_flag_action_list
3994 / sizeof(struct peer_flag_action
);
3996 found
= peer_flag_action_set(peer_af_flag_action_list
, size
, &action
,
3999 /* No flag action is found. */
4001 return BGP_ERR_INVALID_FLAG
;
4003 /* Special check for reflector client. */
4004 if (flag
& PEER_FLAG_REFLECTOR_CLIENT
4005 && peer_sort(peer
) != BGP_PEER_IBGP
)
4006 return BGP_ERR_NOT_INTERNAL_PEER
;
4008 /* Special check for remove-private-AS. */
4009 if (flag
& PEER_FLAG_REMOVE_PRIVATE_AS
4010 && peer_sort(peer
) == BGP_PEER_IBGP
)
4011 return BGP_ERR_REMOVE_PRIVATE_AS
;
4013 /* as-override is not allowed for IBGP peers */
4014 if (flag
& PEER_FLAG_AS_OVERRIDE
&& peer_sort(peer
) == BGP_PEER_IBGP
)
4015 return BGP_ERR_AS_OVERRIDE
;
4017 /* When current flag configuration is same as requested one. */
4018 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
4019 if (set
&& CHECK_FLAG(peer
->af_flags
[afi
][safi
], flag
) == flag
)
4021 if (!set
&& !CHECK_FLAG(peer
->af_flags
[afi
][safi
], flag
))
4026 SET_FLAG(peer
->af_flags
[afi
][safi
], flag
);
4028 UNSET_FLAG(peer
->af_flags
[afi
][safi
], flag
);
4030 /* Execute action when peer is established. */
4031 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)
4032 && peer
->status
== Established
) {
4033 if (!set
&& flag
== PEER_FLAG_SOFT_RECONFIG
)
4034 bgp_clear_adj_in(peer
, afi
, safi
);
4036 if (flag
== PEER_FLAG_REFLECTOR_CLIENT
)
4037 peer
->last_reset
= PEER_DOWN_RR_CLIENT_CHANGE
;
4038 else if (flag
== PEER_FLAG_RSERVER_CLIENT
)
4039 peer
->last_reset
= PEER_DOWN_RS_CLIENT_CHANGE
;
4040 else if (flag
== PEER_FLAG_ORF_PREFIX_SM
)
4041 peer
->last_reset
= PEER_DOWN_CAPABILITY_CHANGE
;
4042 else if (flag
== PEER_FLAG_ORF_PREFIX_RM
)
4043 peer
->last_reset
= PEER_DOWN_CAPABILITY_CHANGE
;
4045 peer_change_action(peer
, afi
, safi
, action
.type
);
4049 /* Peer group member updates. */
4050 if (CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
4051 group
= peer
->group
;
4053 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, tmp_peer
)) {
4055 && CHECK_FLAG(tmp_peer
->af_flags
[afi
][safi
], flag
)
4060 && !CHECK_FLAG(tmp_peer
->af_flags
[afi
][safi
], flag
))
4064 SET_FLAG(tmp_peer
->af_flags
[afi
][safi
], flag
);
4066 UNSET_FLAG(tmp_peer
->af_flags
[afi
][safi
], flag
);
4068 if (tmp_peer
->status
== Established
) {
4069 if (!set
&& flag
== PEER_FLAG_SOFT_RECONFIG
)
4070 bgp_clear_adj_in(tmp_peer
, afi
, safi
);
4072 if (flag
== PEER_FLAG_REFLECTOR_CLIENT
)
4073 tmp_peer
->last_reset
=
4074 PEER_DOWN_RR_CLIENT_CHANGE
;
4076 == PEER_FLAG_RSERVER_CLIENT
)
4077 tmp_peer
->last_reset
=
4078 PEER_DOWN_RS_CLIENT_CHANGE
;
4080 == PEER_FLAG_ORF_PREFIX_SM
)
4081 tmp_peer
->last_reset
=
4082 PEER_DOWN_CAPABILITY_CHANGE
;
4084 == PEER_FLAG_ORF_PREFIX_RM
)
4085 tmp_peer
->last_reset
=
4086 PEER_DOWN_CAPABILITY_CHANGE
;
4088 peer_change_action(tmp_peer
, afi
, safi
,
4095 /* Track if addpath TX is in use */
4096 if (flag
& (PEER_FLAG_ADDPATH_TX_ALL_PATHS
4097 | PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS
)) {
4099 addpath_tx_used
= 0;
4102 addpath_tx_used
= 1;
4104 if (flag
& PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS
) {
4105 if (!bgp_flag_check(
4106 bgp
, BGP_FLAG_DETERMINISTIC_MED
)) {
4108 "%s: enabling bgp deterministic-med, this is required"
4109 " for addpath-tx-bestpath-per-AS",
4113 BGP_FLAG_DETERMINISTIC_MED
);
4114 bgp_recalculate_all_bestpaths(bgp
);
4118 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
,
4120 if (CHECK_FLAG(tmp_peer
->af_flags
[afi
][safi
],
4121 PEER_FLAG_ADDPATH_TX_ALL_PATHS
)
4123 tmp_peer
->af_flags
[afi
][safi
],
4124 PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS
)) {
4125 addpath_tx_used
= 1;
4131 bgp
->addpath_tx_used
[afi
][safi
] = addpath_tx_used
;
4137 int peer_af_flag_set(struct peer
*peer
, afi_t afi
, safi_t safi
, uint32_t flag
)
4139 return peer_af_flag_modify(peer
, afi
, safi
, flag
, 1);
4142 int peer_af_flag_unset(struct peer
*peer
, afi_t afi
, safi_t safi
, uint32_t flag
)
4144 return peer_af_flag_modify(peer
, afi
, safi
, flag
, 0);
4148 int peer_tx_shutdown_message_set(struct peer
*peer
, const char *msg
)
4150 XFREE(MTYPE_PEER_TX_SHUTDOWN_MSG
, peer
->tx_shutdown_message
);
4151 peer
->tx_shutdown_message
=
4152 msg
? XSTRDUP(MTYPE_PEER_TX_SHUTDOWN_MSG
, msg
) : NULL
;
4156 int peer_tx_shutdown_message_unset(struct peer
*peer
)
4158 XFREE(MTYPE_PEER_TX_SHUTDOWN_MSG
, peer
->tx_shutdown_message
);
4163 /* EBGP multihop configuration. */
4164 int peer_ebgp_multihop_set(struct peer
*peer
, int ttl
)
4166 struct peer_group
*group
;
4167 struct listnode
*node
, *nnode
;
4170 if (peer
->sort
== BGP_PEER_IBGP
|| peer
->conf_if
)
4173 /* see comment in peer_ttl_security_hops_set() */
4174 if (ttl
!= MAXTTL
) {
4175 if (CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
4176 group
= peer
->group
;
4177 if (group
->conf
->gtsm_hops
!= 0)
4178 return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK
;
4180 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
,
4182 if (peer1
->sort
== BGP_PEER_IBGP
)
4185 if (peer1
->gtsm_hops
!= 0)
4186 return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK
;
4189 if (peer
->gtsm_hops
!= 0)
4190 return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK
;
4196 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
4197 if (peer
->fd
>= 0 && peer
->sort
!= BGP_PEER_IBGP
) {
4198 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
))
4199 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
4200 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
4202 bgp_session_reset(peer
);
4205 group
= peer
->group
;
4206 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer
)) {
4207 if (peer
->sort
== BGP_PEER_IBGP
)
4210 peer
->ttl
= group
->conf
->ttl
;
4212 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
))
4213 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
4214 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
4216 bgp_session_reset(peer
);
4222 int peer_ebgp_multihop_unset(struct peer
*peer
)
4224 struct peer_group
*group
;
4225 struct listnode
*node
, *nnode
;
4227 if (peer
->sort
== BGP_PEER_IBGP
)
4230 if (peer
->gtsm_hops
!= 0 && peer
->ttl
!= MAXTTL
)
4231 return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK
;
4233 if (peer_group_active(peer
))
4234 peer
->ttl
= peer
->group
->conf
->ttl
;
4238 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
4239 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
))
4240 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
4241 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
4243 bgp_session_reset(peer
);
4245 group
= peer
->group
;
4246 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer
)) {
4247 if (peer
->sort
== BGP_PEER_IBGP
)
4252 if (peer
->fd
>= 0) {
4253 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
))
4255 peer
, BGP_NOTIFY_CEASE
,
4256 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
4258 bgp_session_reset(peer
);
4265 /* Neighbor description. */
4266 int peer_description_set(struct peer
*peer
, const char *desc
)
4269 XFREE(MTYPE_PEER_DESC
, peer
->desc
);
4271 peer
->desc
= XSTRDUP(MTYPE_PEER_DESC
, desc
);
4276 int peer_description_unset(struct peer
*peer
)
4279 XFREE(MTYPE_PEER_DESC
, peer
->desc
);
4286 /* Neighbor update-source. */
4287 int peer_update_source_if_set(struct peer
*peer
, const char *ifname
)
4289 struct peer_group
*group
;
4290 struct listnode
*node
, *nnode
;
4292 if (peer
->update_if
) {
4293 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)
4294 && strcmp(peer
->update_if
, ifname
) == 0)
4297 XFREE(MTYPE_PEER_UPDATE_SOURCE
, peer
->update_if
);
4298 peer
->update_if
= NULL
;
4301 if (peer
->update_source
) {
4302 sockunion_free(peer
->update_source
);
4303 peer
->update_source
= NULL
;
4306 peer
->update_if
= XSTRDUP(MTYPE_PEER_UPDATE_SOURCE
, ifname
);
4308 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
4309 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
)) {
4310 peer
->last_reset
= PEER_DOWN_UPDATE_SOURCE_CHANGE
;
4311 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
4312 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
4314 bgp_session_reset(peer
);
4318 /* peer-group member updates. */
4319 group
= peer
->group
;
4320 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer
)) {
4321 if (peer
->update_if
) {
4322 if (strcmp(peer
->update_if
, ifname
) == 0)
4325 XFREE(MTYPE_PEER_UPDATE_SOURCE
, peer
->update_if
);
4326 peer
->update_if
= NULL
;
4329 if (peer
->update_source
) {
4330 sockunion_free(peer
->update_source
);
4331 peer
->update_source
= NULL
;
4334 peer
->update_if
= XSTRDUP(MTYPE_PEER_UPDATE_SOURCE
, ifname
);
4336 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
)) {
4337 peer
->last_reset
= PEER_DOWN_UPDATE_SOURCE_CHANGE
;
4338 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
4339 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
4341 bgp_session_reset(peer
);
4346 int peer_update_source_addr_set(struct peer
*peer
, const union sockunion
*su
)
4348 struct peer_group
*group
;
4349 struct listnode
*node
, *nnode
;
4351 if (peer
->update_source
) {
4352 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)
4353 && sockunion_cmp(peer
->update_source
, su
) == 0)
4355 sockunion_free(peer
->update_source
);
4356 peer
->update_source
= NULL
;
4359 if (peer
->update_if
) {
4360 XFREE(MTYPE_PEER_UPDATE_SOURCE
, peer
->update_if
);
4361 peer
->update_if
= NULL
;
4364 peer
->update_source
= sockunion_dup(su
);
4366 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
4367 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
)) {
4368 peer
->last_reset
= PEER_DOWN_UPDATE_SOURCE_CHANGE
;
4369 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
4370 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
4372 bgp_session_reset(peer
);
4376 /* peer-group member updates. */
4377 group
= peer
->group
;
4378 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer
)) {
4379 if (peer
->update_source
) {
4380 if (sockunion_cmp(peer
->update_source
, su
) == 0)
4382 sockunion_free(peer
->update_source
);
4383 peer
->update_source
= NULL
;
4386 if (peer
->update_if
) {
4387 XFREE(MTYPE_PEER_UPDATE_SOURCE
, peer
->update_if
);
4388 peer
->update_if
= NULL
;
4391 peer
->update_source
= sockunion_dup(su
);
4393 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
)) {
4394 peer
->last_reset
= PEER_DOWN_UPDATE_SOURCE_CHANGE
;
4395 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
4396 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
4398 bgp_session_reset(peer
);
4403 int peer_update_source_unset(struct peer
*peer
)
4405 union sockunion
*su
;
4406 struct peer_group
*group
;
4407 struct listnode
*node
, *nnode
;
4409 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
) && !peer
->update_source
4410 && !peer
->update_if
)
4413 if (peer
->update_source
) {
4414 sockunion_free(peer
->update_source
);
4415 peer
->update_source
= NULL
;
4417 if (peer
->update_if
) {
4418 XFREE(MTYPE_PEER_UPDATE_SOURCE
, peer
->update_if
);
4419 peer
->update_if
= NULL
;
4422 if (peer_group_active(peer
)) {
4423 group
= peer
->group
;
4425 if (group
->conf
->update_source
) {
4426 su
= sockunion_dup(group
->conf
->update_source
);
4427 peer
->update_source
= su
;
4428 } else if (group
->conf
->update_if
)
4429 peer
->update_if
= XSTRDUP(MTYPE_PEER_UPDATE_SOURCE
,
4430 group
->conf
->update_if
);
4433 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
4434 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
)) {
4435 peer
->last_reset
= PEER_DOWN_UPDATE_SOURCE_CHANGE
;
4436 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
4437 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
4439 bgp_session_reset(peer
);
4443 /* peer-group member updates. */
4444 group
= peer
->group
;
4445 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer
)) {
4446 if (!peer
->update_source
&& !peer
->update_if
)
4449 if (peer
->update_source
) {
4450 sockunion_free(peer
->update_source
);
4451 peer
->update_source
= NULL
;
4454 if (peer
->update_if
) {
4455 XFREE(MTYPE_PEER_UPDATE_SOURCE
, peer
->update_if
);
4456 peer
->update_if
= NULL
;
4459 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
)) {
4460 peer
->last_reset
= PEER_DOWN_UPDATE_SOURCE_CHANGE
;
4461 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
4462 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
4464 bgp_session_reset(peer
);
4469 int peer_default_originate_set(struct peer
*peer
, afi_t afi
, safi_t safi
,
4472 struct peer_group
*group
;
4473 struct listnode
*node
, *nnode
;
4475 if (!CHECK_FLAG(peer
->af_flags
[afi
][safi
], PEER_FLAG_DEFAULT_ORIGINATE
)
4476 || (rmap
&& !peer
->default_rmap
[afi
][safi
].name
)
4478 && strcmp(rmap
, peer
->default_rmap
[afi
][safi
].name
) != 0)) {
4479 SET_FLAG(peer
->af_flags
[afi
][safi
],
4480 PEER_FLAG_DEFAULT_ORIGINATE
);
4483 if (peer
->default_rmap
[afi
][safi
].name
)
4484 XFREE(MTYPE_ROUTE_MAP_NAME
,
4485 peer
->default_rmap
[afi
][safi
].name
);
4486 peer
->default_rmap
[afi
][safi
].name
=
4487 XSTRDUP(MTYPE_ROUTE_MAP_NAME
, rmap
);
4488 peer
->default_rmap
[afi
][safi
].map
=
4489 route_map_lookup_by_name(rmap
);
4493 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
4494 if (peer
->status
== Established
&& peer
->afc_nego
[afi
][safi
]) {
4495 update_group_adjust_peer(peer_af_find(peer
, afi
, safi
));
4496 bgp_default_originate(peer
, afi
, safi
, 0);
4497 bgp_announce_route(peer
, afi
, safi
);
4502 /* peer-group member updates. */
4503 group
= peer
->group
;
4504 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer
)) {
4505 SET_FLAG(peer
->af_flags
[afi
][safi
],
4506 PEER_FLAG_DEFAULT_ORIGINATE
);
4509 if (peer
->default_rmap
[afi
][safi
].name
)
4510 XFREE(MTYPE_ROUTE_MAP_NAME
,
4511 peer
->default_rmap
[afi
][safi
].name
);
4512 peer
->default_rmap
[afi
][safi
].name
=
4513 XSTRDUP(MTYPE_ROUTE_MAP_NAME
, rmap
);
4514 peer
->default_rmap
[afi
][safi
].map
=
4515 route_map_lookup_by_name(rmap
);
4518 if (peer
->status
== Established
&& peer
->afc_nego
[afi
][safi
]) {
4519 update_group_adjust_peer(peer_af_find(peer
, afi
, safi
));
4520 bgp_default_originate(peer
, afi
, safi
, 0);
4521 bgp_announce_route(peer
, afi
, safi
);
4527 int peer_default_originate_unset(struct peer
*peer
, afi_t afi
, safi_t safi
)
4529 struct peer_group
*group
;
4530 struct listnode
*node
, *nnode
;
4532 if (CHECK_FLAG(peer
->af_flags
[afi
][safi
],
4533 PEER_FLAG_DEFAULT_ORIGINATE
)) {
4534 UNSET_FLAG(peer
->af_flags
[afi
][safi
],
4535 PEER_FLAG_DEFAULT_ORIGINATE
);
4537 if (peer
->default_rmap
[afi
][safi
].name
)
4538 XFREE(MTYPE_ROUTE_MAP_NAME
,
4539 peer
->default_rmap
[afi
][safi
].name
);
4540 peer
->default_rmap
[afi
][safi
].name
= NULL
;
4541 peer
->default_rmap
[afi
][safi
].map
= NULL
;
4544 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
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
, 1);
4548 bgp_announce_route(peer
, afi
, safi
);
4553 /* peer-group member updates. */
4554 group
= peer
->group
;
4555 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer
)) {
4556 UNSET_FLAG(peer
->af_flags
[afi
][safi
],
4557 PEER_FLAG_DEFAULT_ORIGINATE
);
4559 if (peer
->default_rmap
[afi
][safi
].name
)
4560 XFREE(MTYPE_ROUTE_MAP_NAME
,
4561 peer
->default_rmap
[afi
][safi
].name
);
4562 peer
->default_rmap
[afi
][safi
].name
= NULL
;
4563 peer
->default_rmap
[afi
][safi
].map
= NULL
;
4565 if (peer
->status
== Established
&& peer
->afc_nego
[afi
][safi
]) {
4566 update_group_adjust_peer(peer_af_find(peer
, afi
, safi
));
4567 bgp_default_originate(peer
, afi
, safi
, 1);
4568 bgp_announce_route(peer
, afi
, safi
);
4574 int peer_port_set(struct peer
*peer
, uint16_t port
)
4580 int peer_port_unset(struct peer
*peer
)
4582 peer
->port
= BGP_PORT_DEFAULT
;
4587 * Helper function that is called after the name of the policy
4588 * being used by a peer has changed (AF specific). Automatically
4589 * initiates inbound or outbound processing as needed.
4591 static void peer_on_policy_change(struct peer
*peer
, afi_t afi
, safi_t safi
,
4595 update_group_adjust_peer(peer_af_find(peer
, afi
, safi
));
4596 if (peer
->status
== Established
)
4597 bgp_announce_route(peer
, afi
, safi
);
4599 if (peer
->status
!= Established
)
4602 if (CHECK_FLAG(peer
->af_flags
[afi
][safi
],
4603 PEER_FLAG_SOFT_RECONFIG
))
4604 bgp_soft_reconfig_in(peer
, afi
, safi
);
4605 else if (CHECK_FLAG(peer
->cap
, PEER_CAP_REFRESH_OLD_RCV
)
4606 || CHECK_FLAG(peer
->cap
, PEER_CAP_REFRESH_NEW_RCV
))
4607 bgp_route_refresh_send(peer
, afi
, safi
, 0, 0, 0);
4612 /* neighbor weight. */
4613 int peer_weight_set(struct peer
*peer
, afi_t afi
, safi_t safi
, uint16_t weight
)
4615 struct peer_group
*group
;
4616 struct listnode
*node
, *nnode
;
4618 if (peer
->weight
[afi
][safi
] != weight
) {
4619 peer
->weight
[afi
][safi
] = weight
;
4620 SET_FLAG(peer
->af_flags
[afi
][safi
], PEER_FLAG_WEIGHT
);
4621 peer_on_policy_change(peer
, afi
, safi
, 0);
4624 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
))
4627 /* peer-group member updates. */
4628 group
= peer
->group
;
4629 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer
)) {
4630 if (peer
->weight
[afi
][safi
] != weight
) {
4631 peer
->weight
[afi
][safi
] = weight
;
4632 SET_FLAG(peer
->af_flags
[afi
][safi
], PEER_FLAG_WEIGHT
);
4633 peer_on_policy_change(peer
, afi
, safi
, 0);
4639 int peer_weight_unset(struct peer
*peer
, afi_t afi
, safi_t safi
)
4641 struct peer_group
*group
;
4642 struct listnode
*node
, *nnode
;
4644 /* not the peer-group itself but a peer in a peer-group */
4645 if (peer_group_active(peer
)) {
4646 group
= peer
->group
;
4648 /* inherit weight from the peer-group */
4649 if (CHECK_FLAG(group
->conf
->af_flags
[afi
][safi
],
4650 PEER_FLAG_WEIGHT
)) {
4651 peer
->weight
[afi
][safi
] =
4652 group
->conf
->weight
[afi
][safi
];
4653 peer_af_flag_set(peer
, afi
, safi
, PEER_FLAG_WEIGHT
);
4654 peer_on_policy_change(peer
, afi
, safi
, 0);
4656 if (CHECK_FLAG(peer
->af_flags
[afi
][safi
],
4657 PEER_FLAG_WEIGHT
)) {
4658 peer
->weight
[afi
][safi
] = 0;
4659 peer_af_flag_unset(peer
, afi
, safi
,
4661 peer_on_policy_change(peer
, afi
, safi
, 0);
4667 if (CHECK_FLAG(peer
->af_flags
[afi
][safi
], PEER_FLAG_WEIGHT
)) {
4668 peer
->weight
[afi
][safi
] = 0;
4669 peer_af_flag_unset(peer
, afi
, safi
, PEER_FLAG_WEIGHT
);
4670 peer_on_policy_change(peer
, afi
, safi
, 0);
4673 /* peer-group member updates. */
4674 group
= peer
->group
;
4677 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
,
4679 if (CHECK_FLAG(peer
->af_flags
[afi
][safi
],
4680 PEER_FLAG_WEIGHT
)) {
4681 peer
->weight
[afi
][safi
] = 0;
4682 peer_af_flag_unset(peer
, afi
, safi
,
4684 peer_on_policy_change(peer
, afi
, safi
,
4693 int peer_timers_set(struct peer
*peer
, uint32_t keepalive
, uint32_t holdtime
)
4695 struct peer_group
*group
;
4696 struct listnode
*node
, *nnode
;
4698 /* keepalive value check. */
4699 if (keepalive
> 65535)
4700 return BGP_ERR_INVALID_VALUE
;
4702 /* Holdtime value check. */
4703 if (holdtime
> 65535)
4704 return BGP_ERR_INVALID_VALUE
;
4706 /* Holdtime value must be either 0 or greater than 3. */
4707 if (holdtime
< 3 && holdtime
!= 0)
4708 return BGP_ERR_INVALID_VALUE
;
4710 /* Set value to the configuration. */
4711 peer
->holdtime
= holdtime
;
4712 peer
->keepalive
= (keepalive
< holdtime
/ 3 ? keepalive
: holdtime
/ 3);
4714 /* First work on real peers with timers */
4715 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
4716 SET_FLAG(peer
->config
, PEER_CONFIG_TIMER
);
4717 UNSET_FLAG(peer
->config
, PEER_GROUP_CONFIG_TIMER
);
4719 /* Now work on the peer-group timers */
4720 SET_FLAG(peer
->config
, PEER_GROUP_CONFIG_TIMER
);
4722 /* peer-group member updates. */
4723 group
= peer
->group
;
4724 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer
)) {
4725 /* Skip peers that have their own timers */
4726 if (CHECK_FLAG(peer
->config
, PEER_CONFIG_TIMER
))
4729 SET_FLAG(peer
->config
, PEER_GROUP_CONFIG_TIMER
);
4730 peer
->holdtime
= group
->conf
->holdtime
;
4731 peer
->keepalive
= group
->conf
->keepalive
;
4738 int peer_timers_unset(struct peer
*peer
)
4740 struct peer_group
*group
;
4741 struct listnode
*node
, *nnode
;
4743 /* First work on real peers vs the peer-group */
4744 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
4745 UNSET_FLAG(peer
->config
, PEER_CONFIG_TIMER
);
4746 peer
->keepalive
= 0;
4749 if (peer
->group
&& peer
->group
->conf
->holdtime
) {
4750 SET_FLAG(peer
->config
, PEER_GROUP_CONFIG_TIMER
);
4751 peer
->keepalive
= peer
->group
->conf
->keepalive
;
4752 peer
->holdtime
= peer
->group
->conf
->holdtime
;
4755 /* peer-group member updates. */
4756 group
= peer
->group
;
4757 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer
)) {
4758 if (!CHECK_FLAG(peer
->config
, PEER_CONFIG_TIMER
)) {
4759 UNSET_FLAG(peer
->config
,
4760 PEER_GROUP_CONFIG_TIMER
);
4762 peer
->keepalive
= 0;
4766 UNSET_FLAG(group
->conf
->config
, PEER_GROUP_CONFIG_TIMER
);
4767 group
->conf
->holdtime
= 0;
4768 group
->conf
->keepalive
= 0;
4774 int peer_timers_connect_set(struct peer
*peer
, uint32_t connect
)
4776 struct peer_group
*group
;
4777 struct listnode
*node
, *nnode
;
4779 if (connect
> 65535)
4780 return BGP_ERR_INVALID_VALUE
;
4782 /* Set value to the configuration. */
4783 SET_FLAG(peer
->config
, PEER_CONFIG_CONNECT
);
4784 peer
->connect
= connect
;
4786 /* Set value to timer setting. */
4787 peer
->v_connect
= connect
;
4789 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
))
4792 /* peer-group member updates. */
4793 group
= peer
->group
;
4794 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer
)) {
4795 SET_FLAG(peer
->config
, PEER_CONFIG_CONNECT
);
4796 peer
->connect
= connect
;
4797 peer
->v_connect
= connect
;
4802 int peer_timers_connect_unset(struct peer
*peer
)
4804 struct peer_group
*group
;
4805 struct listnode
*node
, *nnode
;
4807 /* Clear configuration. */
4808 UNSET_FLAG(peer
->config
, PEER_CONFIG_CONNECT
);
4811 /* Set timer setting to default value. */
4812 peer
->v_connect
= BGP_DEFAULT_CONNECT_RETRY
;
4814 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
))
4817 /* peer-group member updates. */
4818 group
= peer
->group
;
4819 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer
)) {
4820 UNSET_FLAG(peer
->config
, PEER_CONFIG_CONNECT
);
4822 peer
->v_connect
= BGP_DEFAULT_CONNECT_RETRY
;
4827 int peer_advertise_interval_set(struct peer
*peer
, uint32_t routeadv
)
4829 struct peer_group
*group
;
4830 struct listnode
*node
, *nnode
;
4833 return BGP_ERR_INVALID_VALUE
;
4835 SET_FLAG(peer
->config
, PEER_CONFIG_ROUTEADV
);
4836 peer
->routeadv
= routeadv
;
4837 peer
->v_routeadv
= routeadv
;
4839 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
4840 update_group_adjust_peer_afs(peer
);
4841 if (peer
->status
== Established
)
4842 bgp_announce_route_all(peer
);
4846 /* peer-group member updates. */
4847 group
= peer
->group
;
4848 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer
)) {
4849 SET_FLAG(peer
->config
, PEER_CONFIG_ROUTEADV
);
4850 peer
->routeadv
= routeadv
;
4851 peer
->v_routeadv
= routeadv
;
4852 update_group_adjust_peer_afs(peer
);
4853 if (peer
->status
== Established
)
4854 bgp_announce_route_all(peer
);
4860 int peer_advertise_interval_unset(struct peer
*peer
)
4862 struct peer_group
*group
;
4863 struct listnode
*node
, *nnode
;
4865 UNSET_FLAG(peer
->config
, PEER_CONFIG_ROUTEADV
);
4868 if (peer
->sort
== BGP_PEER_IBGP
)
4869 peer
->v_routeadv
= BGP_DEFAULT_IBGP_ROUTEADV
;
4871 peer
->v_routeadv
= BGP_DEFAULT_EBGP_ROUTEADV
;
4873 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
4874 update_group_adjust_peer_afs(peer
);
4875 if (peer
->status
== Established
)
4876 bgp_announce_route_all(peer
);
4880 /* peer-group member updates. */
4881 group
= peer
->group
;
4882 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer
)) {
4883 UNSET_FLAG(peer
->config
, PEER_CONFIG_ROUTEADV
);
4886 if (peer
->sort
== BGP_PEER_IBGP
)
4887 peer
->v_routeadv
= BGP_DEFAULT_IBGP_ROUTEADV
;
4889 peer
->v_routeadv
= BGP_DEFAULT_EBGP_ROUTEADV
;
4891 update_group_adjust_peer_afs(peer
);
4892 if (peer
->status
== Established
)
4893 bgp_announce_route_all(peer
);
4899 /* neighbor interface */
4900 void peer_interface_set(struct peer
*peer
, const char *str
)
4903 XFREE(MTYPE_BGP_PEER_IFNAME
, peer
->ifname
);
4904 peer
->ifname
= XSTRDUP(MTYPE_BGP_PEER_IFNAME
, str
);
4907 void peer_interface_unset(struct peer
*peer
)
4910 XFREE(MTYPE_BGP_PEER_IFNAME
, peer
->ifname
);
4911 peer
->ifname
= NULL
;
4915 int peer_allowas_in_set(struct peer
*peer
, afi_t afi
, safi_t safi
,
4916 int allow_num
, int origin
)
4918 struct peer_group
*group
;
4919 struct listnode
*node
, *nnode
;
4922 if (peer
->allowas_in
[afi
][safi
]
4923 || CHECK_FLAG(peer
->af_flags
[afi
][safi
],
4924 PEER_FLAG_ALLOWAS_IN
)
4925 || !CHECK_FLAG(peer
->af_flags
[afi
][safi
],
4926 PEER_FLAG_ALLOWAS_IN_ORIGIN
)) {
4927 peer
->allowas_in
[afi
][safi
] = 0;
4928 peer_af_flag_unset(peer
, afi
, safi
,
4929 PEER_FLAG_ALLOWAS_IN
);
4930 peer_af_flag_set(peer
, afi
, safi
,
4931 PEER_FLAG_ALLOWAS_IN_ORIGIN
);
4932 peer_on_policy_change(peer
, afi
, safi
, 0);
4935 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
))
4938 group
= peer
->group
;
4939 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer
)) {
4940 if (peer
->allowas_in
[afi
][safi
]
4941 || CHECK_FLAG(peer
->af_flags
[afi
][safi
],
4942 PEER_FLAG_ALLOWAS_IN
)
4943 || !CHECK_FLAG(peer
->af_flags
[afi
][safi
],
4944 PEER_FLAG_ALLOWAS_IN_ORIGIN
)) {
4945 peer
->allowas_in
[afi
][safi
] = 0;
4946 peer_af_flag_unset(peer
, afi
, safi
,
4947 PEER_FLAG_ALLOWAS_IN
);
4948 peer_af_flag_set(peer
, afi
, safi
,
4949 PEER_FLAG_ALLOWAS_IN_ORIGIN
);
4950 peer_on_policy_change(peer
, afi
, safi
, 0);
4954 if (allow_num
< 1 || allow_num
> 10)
4955 return BGP_ERR_INVALID_VALUE
;
4957 if (peer
->allowas_in
[afi
][safi
] != allow_num
4958 || CHECK_FLAG(peer
->af_flags
[afi
][safi
],
4959 PEER_FLAG_ALLOWAS_IN_ORIGIN
)) {
4960 peer
->allowas_in
[afi
][safi
] = allow_num
;
4961 peer_af_flag_set(peer
, afi
, safi
, PEER_FLAG_ALLOWAS_IN
);
4962 peer_af_flag_unset(peer
, afi
, safi
,
4963 PEER_FLAG_ALLOWAS_IN_ORIGIN
);
4964 peer_on_policy_change(peer
, afi
, safi
, 0);
4967 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
))
4970 group
= peer
->group
;
4971 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer
)) {
4972 if (peer
->allowas_in
[afi
][safi
] != allow_num
4973 || CHECK_FLAG(peer
->af_flags
[afi
][safi
],
4974 PEER_FLAG_ALLOWAS_IN_ORIGIN
)) {
4975 peer
->allowas_in
[afi
][safi
] = allow_num
;
4976 peer_af_flag_set(peer
, afi
, safi
,
4977 PEER_FLAG_ALLOWAS_IN
);
4978 peer_af_flag_unset(peer
, afi
, safi
,
4979 PEER_FLAG_ALLOWAS_IN_ORIGIN
);
4980 peer_on_policy_change(peer
, afi
, safi
, 0);
4988 int peer_allowas_in_unset(struct peer
*peer
, afi_t afi
, safi_t safi
)
4990 struct peer_group
*group
;
4991 struct peer
*tmp_peer
;
4992 struct listnode
*node
, *nnode
;
4994 /* If this is a peer-group we must first clear the flags for all of the
4995 * peer-group members
4997 if (CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
4998 group
= peer
->group
;
4999 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, tmp_peer
)) {
5000 if (CHECK_FLAG(tmp_peer
->af_flags
[afi
][safi
],
5001 PEER_FLAG_ALLOWAS_IN
)
5002 || CHECK_FLAG(tmp_peer
->af_flags
[afi
][safi
],
5003 PEER_FLAG_ALLOWAS_IN_ORIGIN
)) {
5004 tmp_peer
->allowas_in
[afi
][safi
] = 0;
5005 peer_af_flag_unset(tmp_peer
, afi
, safi
,
5006 PEER_FLAG_ALLOWAS_IN
);
5007 peer_af_flag_unset(tmp_peer
, afi
, safi
,
5008 PEER_FLAG_ALLOWAS_IN_ORIGIN
);
5009 peer_on_policy_change(tmp_peer
, afi
, safi
, 0);
5014 if (CHECK_FLAG(peer
->af_flags
[afi
][safi
], PEER_FLAG_ALLOWAS_IN
)
5015 || CHECK_FLAG(peer
->af_flags
[afi
][safi
],
5016 PEER_FLAG_ALLOWAS_IN_ORIGIN
)) {
5017 peer
->allowas_in
[afi
][safi
] = 0;
5018 peer_af_flag_unset(peer
, afi
, safi
, PEER_FLAG_ALLOWAS_IN
);
5019 peer_af_flag_unset(peer
, afi
, safi
,
5020 PEER_FLAG_ALLOWAS_IN_ORIGIN
);
5021 peer_on_policy_change(peer
, afi
, safi
, 0);
5027 int peer_local_as_set(struct peer
*peer
, as_t as
, int no_prepend
,
5030 struct bgp
*bgp
= peer
->bgp
;
5031 struct peer_group
*group
;
5032 struct listnode
*node
, *nnode
;
5034 if (peer_sort(peer
) != BGP_PEER_EBGP
5035 && peer_sort(peer
) != BGP_PEER_INTERNAL
)
5036 return BGP_ERR_LOCAL_AS_ALLOWED_ONLY_FOR_EBGP
;
5039 return BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS
;
5042 return BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS_REMOTE_AS
;
5044 if (peer
->change_local_as
== as
5045 && ((CHECK_FLAG(peer
->flags
, PEER_FLAG_LOCAL_AS_NO_PREPEND
)
5047 || (!CHECK_FLAG(peer
->flags
, PEER_FLAG_LOCAL_AS_NO_PREPEND
)
5049 && ((CHECK_FLAG(peer
->flags
, PEER_FLAG_LOCAL_AS_REPLACE_AS
)
5051 || (!CHECK_FLAG(peer
->flags
, PEER_FLAG_LOCAL_AS_REPLACE_AS
)
5055 peer
->change_local_as
= as
;
5057 SET_FLAG(peer
->flags
, PEER_FLAG_LOCAL_AS_NO_PREPEND
);
5059 UNSET_FLAG(peer
->flags
, PEER_FLAG_LOCAL_AS_NO_PREPEND
);
5062 SET_FLAG(peer
->flags
, PEER_FLAG_LOCAL_AS_REPLACE_AS
);
5064 UNSET_FLAG(peer
->flags
, PEER_FLAG_LOCAL_AS_REPLACE_AS
);
5066 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
5067 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
)) {
5068 peer
->last_reset
= PEER_DOWN_LOCAL_AS_CHANGE
;
5069 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
5070 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
5072 bgp_session_reset(peer
);
5076 group
= peer
->group
;
5077 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer
)) {
5078 peer
->change_local_as
= as
;
5080 SET_FLAG(peer
->flags
, PEER_FLAG_LOCAL_AS_NO_PREPEND
);
5082 UNSET_FLAG(peer
->flags
, PEER_FLAG_LOCAL_AS_NO_PREPEND
);
5085 SET_FLAG(peer
->flags
, PEER_FLAG_LOCAL_AS_REPLACE_AS
);
5087 UNSET_FLAG(peer
->flags
, PEER_FLAG_LOCAL_AS_REPLACE_AS
);
5089 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
)) {
5090 peer
->last_reset
= PEER_DOWN_LOCAL_AS_CHANGE
;
5091 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
5092 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
5094 BGP_EVENT_ADD(peer
, BGP_Stop
);
5100 int peer_local_as_unset(struct peer
*peer
)
5102 struct peer_group
*group
;
5103 struct listnode
*node
, *nnode
;
5105 if (!peer
->change_local_as
)
5108 peer
->change_local_as
= 0;
5109 UNSET_FLAG(peer
->flags
, PEER_FLAG_LOCAL_AS_NO_PREPEND
);
5110 UNSET_FLAG(peer
->flags
, PEER_FLAG_LOCAL_AS_REPLACE_AS
);
5112 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
5113 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
)) {
5114 peer
->last_reset
= PEER_DOWN_LOCAL_AS_CHANGE
;
5115 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
5116 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
5118 BGP_EVENT_ADD(peer
, BGP_Stop
);
5123 group
= peer
->group
;
5124 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer
)) {
5125 peer
->change_local_as
= 0;
5126 UNSET_FLAG(peer
->flags
, PEER_FLAG_LOCAL_AS_NO_PREPEND
);
5127 UNSET_FLAG(peer
->flags
, PEER_FLAG_LOCAL_AS_REPLACE_AS
);
5129 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
)) {
5130 peer
->last_reset
= PEER_DOWN_LOCAL_AS_CHANGE
;
5131 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
5132 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
5134 bgp_session_reset(peer
);
5139 /* Set password for authenticating with the peer. */
5140 int peer_password_set(struct peer
*peer
, const char *password
)
5142 struct listnode
*nn
, *nnode
;
5143 int len
= password
? strlen(password
) : 0;
5144 int ret
= BGP_SUCCESS
;
5146 if ((len
< PEER_PASSWORD_MINLEN
) || (len
> PEER_PASSWORD_MAXLEN
))
5147 return BGP_ERR_INVALID_VALUE
;
5149 if (peer
->password
&& strcmp(peer
->password
, password
) == 0
5150 && !CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
))
5154 XFREE(MTYPE_PEER_PASSWORD
, peer
->password
);
5156 peer
->password
= XSTRDUP(MTYPE_PEER_PASSWORD
, password
);
5158 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
5159 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
))
5160 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
5161 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
5163 bgp_session_reset(peer
);
5165 if (BGP_PEER_SU_UNSPEC(peer
))
5168 return (bgp_md5_set(peer
) >= 0) ? BGP_SUCCESS
5169 : BGP_ERR_TCPSIG_FAILED
;
5172 for (ALL_LIST_ELEMENTS(peer
->group
->peer
, nn
, nnode
, peer
)) {
5173 if (peer
->password
&& strcmp(peer
->password
, password
) == 0)
5177 XFREE(MTYPE_PEER_PASSWORD
, peer
->password
);
5179 peer
->password
= XSTRDUP(MTYPE_PEER_PASSWORD
, password
);
5181 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
))
5182 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
5183 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
5185 bgp_session_reset(peer
);
5187 if (!BGP_PEER_SU_UNSPEC(peer
)) {
5188 if (bgp_md5_set(peer
) < 0)
5189 ret
= BGP_ERR_TCPSIG_FAILED
;
5196 int peer_password_unset(struct peer
*peer
)
5198 struct listnode
*nn
, *nnode
;
5200 if (!peer
->password
&& !CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
))
5203 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
5204 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
))
5205 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
5206 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
5208 bgp_session_reset(peer
);
5211 XFREE(MTYPE_PEER_PASSWORD
, peer
->password
);
5213 peer
->password
= NULL
;
5215 if (!BGP_PEER_SU_UNSPEC(peer
))
5216 bgp_md5_unset(peer
);
5221 XFREE(MTYPE_PEER_PASSWORD
, peer
->password
);
5222 peer
->password
= NULL
;
5224 for (ALL_LIST_ELEMENTS(peer
->group
->peer
, nn
, nnode
, peer
)) {
5225 if (!peer
->password
)
5228 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
))
5229 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
5230 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
5232 bgp_session_reset(peer
);
5234 XFREE(MTYPE_PEER_PASSWORD
, peer
->password
);
5235 peer
->password
= NULL
;
5237 if (!BGP_PEER_SU_UNSPEC(peer
))
5238 bgp_md5_unset(peer
);
5245 /* Set distribute list to the peer. */
5246 int peer_distribute_set(struct peer
*peer
, afi_t afi
, safi_t safi
, int direct
,
5249 struct bgp_filter
*filter
;
5250 struct peer_group
*group
;
5251 struct listnode
*node
, *nnode
;
5253 if (direct
!= FILTER_IN
&& direct
!= FILTER_OUT
)
5254 return BGP_ERR_INVALID_VALUE
;
5256 filter
= &peer
->filter
[afi
][safi
];
5258 if (filter
->plist
[direct
].name
)
5259 return BGP_ERR_PEER_FILTER_CONFLICT
;
5261 if (filter
->dlist
[direct
].name
)
5262 XFREE(MTYPE_BGP_FILTER_NAME
, filter
->dlist
[direct
].name
);
5263 filter
->dlist
[direct
].name
= XSTRDUP(MTYPE_BGP_FILTER_NAME
, name
);
5264 filter
->dlist
[direct
].alist
= access_list_lookup(afi
, name
);
5266 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
5267 peer_on_policy_change(peer
, afi
, safi
,
5268 (direct
== FILTER_OUT
) ? 1 : 0);
5272 group
= peer
->group
;
5273 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer
)) {
5274 filter
= &peer
->filter
[afi
][safi
];
5276 if (filter
->dlist
[direct
].name
)
5277 XFREE(MTYPE_BGP_FILTER_NAME
,
5278 filter
->dlist
[direct
].name
);
5279 filter
->dlist
[direct
].name
=
5280 XSTRDUP(MTYPE_BGP_FILTER_NAME
, name
);
5281 filter
->dlist
[direct
].alist
= access_list_lookup(afi
, name
);
5282 peer_on_policy_change(peer
, afi
, safi
,
5283 (direct
== FILTER_OUT
) ? 1 : 0);
5289 int peer_distribute_unset(struct peer
*peer
, afi_t afi
, safi_t safi
, int direct
)
5291 struct bgp_filter
*filter
;
5292 struct bgp_filter
*gfilter
;
5293 struct peer_group
*group
;
5294 struct listnode
*node
, *nnode
;
5296 if (direct
!= FILTER_IN
&& direct
!= FILTER_OUT
)
5297 return BGP_ERR_INVALID_VALUE
;
5299 filter
= &peer
->filter
[afi
][safi
];
5301 /* apply peer-group filter */
5302 if (peer_group_active(peer
)) {
5303 gfilter
= &peer
->group
->conf
->filter
[afi
][safi
];
5305 if (gfilter
->dlist
[direct
].name
) {
5306 if (filter
->dlist
[direct
].name
)
5307 XFREE(MTYPE_BGP_FILTER_NAME
,
5308 filter
->dlist
[direct
].name
);
5309 filter
->dlist
[direct
].name
=
5310 XSTRDUP(MTYPE_BGP_FILTER_NAME
,
5311 gfilter
->dlist
[direct
].name
);
5312 filter
->dlist
[direct
].alist
=
5313 gfilter
->dlist
[direct
].alist
;
5314 peer_on_policy_change(peer
, afi
, safi
,
5315 (direct
== FILTER_OUT
) ? 1 : 0);
5320 if (filter
->dlist
[direct
].name
)
5321 XFREE(MTYPE_BGP_FILTER_NAME
, filter
->dlist
[direct
].name
);
5322 filter
->dlist
[direct
].name
= NULL
;
5323 filter
->dlist
[direct
].alist
= NULL
;
5325 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
5326 peer_on_policy_change(peer
, afi
, safi
,
5327 (direct
== FILTER_OUT
) ? 1 : 0);
5331 group
= peer
->group
;
5332 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer
)) {
5333 filter
= &peer
->filter
[afi
][safi
];
5335 if (filter
->dlist
[direct
].name
)
5336 XFREE(MTYPE_BGP_FILTER_NAME
,
5337 filter
->dlist
[direct
].name
);
5338 filter
->dlist
[direct
].name
= NULL
;
5339 filter
->dlist
[direct
].alist
= NULL
;
5340 peer_on_policy_change(peer
, afi
, safi
,
5341 (direct
== FILTER_OUT
) ? 1 : 0);
5347 /* Update distribute list. */
5348 static void peer_distribute_update(struct access_list
*access
)
5353 struct listnode
*mnode
, *mnnode
;
5354 struct listnode
*node
, *nnode
;
5357 struct peer_group
*group
;
5358 struct bgp_filter
*filter
;
5360 for (ALL_LIST_ELEMENTS(bm
->bgp
, mnode
, mnnode
, bgp
)) {
5362 update_group_policy_update(bgp
, BGP_POLICY_FILTER_LIST
,
5363 access
->name
, 0, 0);
5364 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
5365 FOREACH_AFI_SAFI (afi
, safi
) {
5366 filter
= &peer
->filter
[afi
][safi
];
5368 for (direct
= FILTER_IN
; direct
< FILTER_MAX
;
5370 if (filter
->dlist
[direct
].name
)
5371 filter
->dlist
[direct
]
5372 .alist
= access_list_lookup(
5374 filter
->dlist
[direct
]
5377 filter
->dlist
[direct
].alist
=
5382 for (ALL_LIST_ELEMENTS(bgp
->group
, node
, nnode
, group
)) {
5383 FOREACH_AFI_SAFI (afi
, safi
) {
5384 filter
= &group
->conf
->filter
[afi
][safi
];
5386 for (direct
= FILTER_IN
; direct
< FILTER_MAX
;
5388 if (filter
->dlist
[direct
].name
)
5389 filter
->dlist
[direct
]
5390 .alist
= access_list_lookup(
5392 filter
->dlist
[direct
]
5395 filter
->dlist
[direct
].alist
=
5401 vnc_prefix_list_update(bgp
);
5406 /* Set prefix list to the peer. */
5407 int peer_prefix_list_set(struct peer
*peer
, afi_t afi
, safi_t safi
, int direct
,
5410 struct bgp_filter
*filter
;
5411 struct peer_group
*group
;
5412 struct listnode
*node
, *nnode
;
5414 if (direct
!= FILTER_IN
&& direct
!= FILTER_OUT
)
5415 return BGP_ERR_INVALID_VALUE
;
5417 filter
= &peer
->filter
[afi
][safi
];
5419 if (filter
->dlist
[direct
].name
)
5420 return BGP_ERR_PEER_FILTER_CONFLICT
;
5422 if (filter
->plist
[direct
].name
)
5423 XFREE(MTYPE_BGP_FILTER_NAME
, filter
->plist
[direct
].name
);
5424 filter
->plist
[direct
].name
= XSTRDUP(MTYPE_BGP_FILTER_NAME
, name
);
5425 filter
->plist
[direct
].plist
= prefix_list_lookup(afi
, name
);
5427 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
5428 peer_on_policy_change(peer
, afi
, safi
,
5429 (direct
== FILTER_OUT
) ? 1 : 0);
5433 group
= peer
->group
;
5434 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer
)) {
5435 filter
= &peer
->filter
[afi
][safi
];
5437 if (filter
->plist
[direct
].name
)
5438 XFREE(MTYPE_BGP_FILTER_NAME
,
5439 filter
->plist
[direct
].name
);
5440 filter
->plist
[direct
].name
=
5441 XSTRDUP(MTYPE_BGP_FILTER_NAME
, name
);
5442 filter
->plist
[direct
].plist
= prefix_list_lookup(afi
, name
);
5443 peer_on_policy_change(peer
, afi
, safi
,
5444 (direct
== FILTER_OUT
) ? 1 : 0);
5449 int peer_prefix_list_unset(struct peer
*peer
, afi_t afi
, safi_t safi
,
5452 struct bgp_filter
*filter
;
5453 struct bgp_filter
*gfilter
;
5454 struct peer_group
*group
;
5455 struct listnode
*node
, *nnode
;
5457 if (direct
!= FILTER_IN
&& direct
!= FILTER_OUT
)
5458 return BGP_ERR_INVALID_VALUE
;
5460 filter
= &peer
->filter
[afi
][safi
];
5462 /* apply peer-group filter */
5463 if (peer_group_active(peer
)) {
5464 gfilter
= &peer
->group
->conf
->filter
[afi
][safi
];
5466 if (gfilter
->plist
[direct
].name
) {
5467 if (filter
->plist
[direct
].name
)
5468 XFREE(MTYPE_BGP_FILTER_NAME
,
5469 filter
->plist
[direct
].name
);
5470 filter
->plist
[direct
].name
=
5471 XSTRDUP(MTYPE_BGP_FILTER_NAME
,
5472 gfilter
->plist
[direct
].name
);
5473 filter
->plist
[direct
].plist
=
5474 gfilter
->plist
[direct
].plist
;
5475 peer_on_policy_change(peer
, afi
, safi
,
5476 (direct
== FILTER_OUT
) ? 1 : 0);
5481 if (filter
->plist
[direct
].name
)
5482 XFREE(MTYPE_BGP_FILTER_NAME
, filter
->plist
[direct
].name
);
5483 filter
->plist
[direct
].name
= NULL
;
5484 filter
->plist
[direct
].plist
= NULL
;
5486 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
5487 peer_on_policy_change(peer
, afi
, safi
,
5488 (direct
== FILTER_OUT
) ? 1 : 0);
5492 group
= peer
->group
;
5493 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer
)) {
5494 filter
= &peer
->filter
[afi
][safi
];
5496 if (filter
->plist
[direct
].name
)
5497 XFREE(MTYPE_BGP_FILTER_NAME
,
5498 filter
->plist
[direct
].name
);
5499 filter
->plist
[direct
].name
= NULL
;
5500 filter
->plist
[direct
].plist
= NULL
;
5501 peer_on_policy_change(peer
, afi
, safi
,
5502 (direct
== FILTER_OUT
) ? 1 : 0);
5508 /* Update prefix-list list. */
5509 static void peer_prefix_list_update(struct prefix_list
*plist
)
5511 struct listnode
*mnode
, *mnnode
;
5512 struct listnode
*node
, *nnode
;
5515 struct peer_group
*group
;
5516 struct bgp_filter
*filter
;
5521 for (ALL_LIST_ELEMENTS(bm
->bgp
, mnode
, mnnode
, bgp
)) {
5524 * Update the prefix-list on update groups.
5526 update_group_policy_update(
5527 bgp
, BGP_POLICY_PREFIX_LIST
,
5528 plist
? prefix_list_name(plist
) : NULL
, 0, 0);
5530 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
5531 FOREACH_AFI_SAFI (afi
, safi
) {
5532 filter
= &peer
->filter
[afi
][safi
];
5534 for (direct
= FILTER_IN
; direct
< FILTER_MAX
;
5536 if (filter
->plist
[direct
].name
)
5537 filter
->plist
[direct
]
5538 .plist
= prefix_list_lookup(
5540 filter
->plist
[direct
]
5543 filter
->plist
[direct
].plist
=
5548 for (ALL_LIST_ELEMENTS(bgp
->group
, node
, nnode
, group
)) {
5549 FOREACH_AFI_SAFI (afi
, safi
) {
5550 filter
= &group
->conf
->filter
[afi
][safi
];
5552 for (direct
= FILTER_IN
; direct
< FILTER_MAX
;
5554 if (filter
->plist
[direct
].name
)
5555 filter
->plist
[direct
]
5556 .plist
= prefix_list_lookup(
5558 filter
->plist
[direct
]
5561 filter
->plist
[direct
].plist
=
5569 int peer_aslist_set(struct peer
*peer
, afi_t afi
, safi_t safi
, int direct
,
5572 struct bgp_filter
*filter
;
5573 struct peer_group
*group
;
5574 struct listnode
*node
, *nnode
;
5576 if (direct
!= FILTER_IN
&& direct
!= FILTER_OUT
)
5577 return BGP_ERR_INVALID_VALUE
;
5579 filter
= &peer
->filter
[afi
][safi
];
5581 if (filter
->aslist
[direct
].name
)
5582 XFREE(MTYPE_BGP_FILTER_NAME
, filter
->aslist
[direct
].name
);
5583 filter
->aslist
[direct
].name
= XSTRDUP(MTYPE_BGP_FILTER_NAME
, name
);
5584 filter
->aslist
[direct
].aslist
= as_list_lookup(name
);
5586 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
5587 peer_on_policy_change(peer
, afi
, safi
,
5588 (direct
== FILTER_OUT
) ? 1 : 0);
5592 group
= peer
->group
;
5593 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer
)) {
5594 filter
= &peer
->filter
[afi
][safi
];
5596 if (filter
->aslist
[direct
].name
)
5597 XFREE(MTYPE_BGP_FILTER_NAME
,
5598 filter
->aslist
[direct
].name
);
5599 filter
->aslist
[direct
].name
=
5600 XSTRDUP(MTYPE_BGP_FILTER_NAME
, name
);
5601 filter
->aslist
[direct
].aslist
= as_list_lookup(name
);
5602 peer_on_policy_change(peer
, afi
, safi
,
5603 (direct
== FILTER_OUT
) ? 1 : 0);
5608 int peer_aslist_unset(struct peer
*peer
, afi_t afi
, safi_t safi
, int direct
)
5610 struct bgp_filter
*filter
;
5611 struct bgp_filter
*gfilter
;
5612 struct peer_group
*group
;
5613 struct listnode
*node
, *nnode
;
5615 if (direct
!= FILTER_IN
&& direct
!= FILTER_OUT
)
5616 return BGP_ERR_INVALID_VALUE
;
5618 filter
= &peer
->filter
[afi
][safi
];
5620 /* apply peer-group filter */
5621 if (peer_group_active(peer
)) {
5622 gfilter
= &peer
->group
->conf
->filter
[afi
][safi
];
5624 if (gfilter
->aslist
[direct
].name
) {
5625 if (filter
->aslist
[direct
].name
)
5626 XFREE(MTYPE_BGP_FILTER_NAME
,
5627 filter
->aslist
[direct
].name
);
5628 filter
->aslist
[direct
].name
=
5629 XSTRDUP(MTYPE_BGP_FILTER_NAME
,
5630 gfilter
->aslist
[direct
].name
);
5631 filter
->aslist
[direct
].aslist
=
5632 gfilter
->aslist
[direct
].aslist
;
5633 peer_on_policy_change(peer
, afi
, safi
,
5634 (direct
== FILTER_OUT
) ? 1 : 0);
5639 if (filter
->aslist
[direct
].name
)
5640 XFREE(MTYPE_BGP_FILTER_NAME
, filter
->aslist
[direct
].name
);
5641 filter
->aslist
[direct
].name
= NULL
;
5642 filter
->aslist
[direct
].aslist
= NULL
;
5644 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
5645 peer_on_policy_change(peer
, afi
, safi
,
5646 (direct
== FILTER_OUT
) ? 1 : 0);
5650 group
= peer
->group
;
5651 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer
)) {
5652 filter
= &peer
->filter
[afi
][safi
];
5654 if (filter
->aslist
[direct
].name
)
5655 XFREE(MTYPE_BGP_FILTER_NAME
,
5656 filter
->aslist
[direct
].name
);
5657 filter
->aslist
[direct
].name
= NULL
;
5658 filter
->aslist
[direct
].aslist
= NULL
;
5659 peer_on_policy_change(peer
, afi
, safi
,
5660 (direct
== FILTER_OUT
) ? 1 : 0);
5666 static void peer_aslist_update(const char *aslist_name
)
5671 struct listnode
*mnode
, *mnnode
;
5672 struct listnode
*node
, *nnode
;
5675 struct peer_group
*group
;
5676 struct bgp_filter
*filter
;
5678 for (ALL_LIST_ELEMENTS(bm
->bgp
, mnode
, mnnode
, bgp
)) {
5679 update_group_policy_update(bgp
, BGP_POLICY_FILTER_LIST
,
5682 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
5683 FOREACH_AFI_SAFI (afi
, safi
) {
5684 filter
= &peer
->filter
[afi
][safi
];
5686 for (direct
= FILTER_IN
; direct
< FILTER_MAX
;
5688 if (filter
->aslist
[direct
].name
)
5689 filter
->aslist
[direct
]
5690 .aslist
= as_list_lookup(
5691 filter
->aslist
[direct
]
5694 filter
->aslist
[direct
].aslist
=
5699 for (ALL_LIST_ELEMENTS(bgp
->group
, node
, nnode
, group
)) {
5700 FOREACH_AFI_SAFI (afi
, safi
) {
5701 filter
= &group
->conf
->filter
[afi
][safi
];
5703 for (direct
= FILTER_IN
; direct
< FILTER_MAX
;
5705 if (filter
->aslist
[direct
].name
)
5706 filter
->aslist
[direct
]
5707 .aslist
= as_list_lookup(
5708 filter
->aslist
[direct
]
5711 filter
->aslist
[direct
].aslist
=
5719 static void peer_aslist_add(char *aslist_name
)
5721 peer_aslist_update(aslist_name
);
5722 route_map_notify_dependencies((char *)aslist_name
,
5723 RMAP_EVENT_ASLIST_ADDED
);
5726 static void peer_aslist_del(const char *aslist_name
)
5728 peer_aslist_update(aslist_name
);
5729 route_map_notify_dependencies(aslist_name
, RMAP_EVENT_ASLIST_DELETED
);
5733 int peer_route_map_set(struct peer
*peer
, afi_t afi
, safi_t safi
, int direct
,
5736 struct bgp_filter
*filter
;
5737 struct peer_group
*group
;
5738 struct listnode
*node
, *nnode
;
5740 if (direct
!= RMAP_IN
&& direct
!= RMAP_OUT
)
5741 return BGP_ERR_INVALID_VALUE
;
5743 filter
= &peer
->filter
[afi
][safi
];
5745 if (filter
->map
[direct
].name
)
5746 XFREE(MTYPE_BGP_FILTER_NAME
, filter
->map
[direct
].name
);
5748 filter
->map
[direct
].name
= XSTRDUP(MTYPE_BGP_FILTER_NAME
, name
);
5749 filter
->map
[direct
].map
= route_map_lookup_by_name(name
);
5751 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
5752 peer_on_policy_change(peer
, afi
, safi
,
5753 (direct
== RMAP_OUT
) ? 1 : 0);
5757 group
= peer
->group
;
5758 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer
)) {
5759 filter
= &peer
->filter
[afi
][safi
];
5761 if (filter
->map
[direct
].name
)
5762 XFREE(MTYPE_BGP_FILTER_NAME
, filter
->map
[direct
].name
);
5763 filter
->map
[direct
].name
= XSTRDUP(MTYPE_BGP_FILTER_NAME
, name
);
5764 filter
->map
[direct
].map
= route_map_lookup_by_name(name
);
5765 peer_on_policy_change(peer
, afi
, safi
,
5766 (direct
== RMAP_OUT
) ? 1 : 0);
5771 /* Unset route-map from the peer. */
5772 int peer_route_map_unset(struct peer
*peer
, afi_t afi
, safi_t safi
, int direct
)
5774 struct bgp_filter
*filter
;
5775 struct bgp_filter
*gfilter
;
5776 struct peer_group
*group
;
5777 struct listnode
*node
, *nnode
;
5779 if (direct
!= RMAP_IN
&& direct
!= RMAP_OUT
)
5780 return BGP_ERR_INVALID_VALUE
;
5782 filter
= &peer
->filter
[afi
][safi
];
5784 /* apply peer-group filter */
5785 if (peer_group_active(peer
)) {
5786 gfilter
= &peer
->group
->conf
->filter
[afi
][safi
];
5788 if (gfilter
->map
[direct
].name
) {
5789 if (filter
->map
[direct
].name
)
5790 XFREE(MTYPE_BGP_FILTER_NAME
,
5791 filter
->map
[direct
].name
);
5792 filter
->map
[direct
].name
=
5793 XSTRDUP(MTYPE_BGP_FILTER_NAME
,
5794 gfilter
->map
[direct
].name
);
5795 filter
->map
[direct
].map
= gfilter
->map
[direct
].map
;
5796 peer_on_policy_change(peer
, afi
, safi
,
5797 (direct
== RMAP_OUT
) ? 1 : 0);
5802 if (filter
->map
[direct
].name
)
5803 XFREE(MTYPE_BGP_FILTER_NAME
, filter
->map
[direct
].name
);
5804 filter
->map
[direct
].name
= NULL
;
5805 filter
->map
[direct
].map
= NULL
;
5807 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
5808 peer_on_policy_change(peer
, afi
, safi
,
5809 (direct
== RMAP_OUT
) ? 1 : 0);
5813 group
= peer
->group
;
5814 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer
)) {
5815 filter
= &peer
->filter
[afi
][safi
];
5817 if (filter
->map
[direct
].name
)
5818 XFREE(MTYPE_BGP_FILTER_NAME
, filter
->map
[direct
].name
);
5819 filter
->map
[direct
].name
= NULL
;
5820 filter
->map
[direct
].map
= NULL
;
5821 peer_on_policy_change(peer
, afi
, safi
,
5822 (direct
== RMAP_OUT
) ? 1 : 0);
5827 /* Set unsuppress-map to the peer. */
5828 int peer_unsuppress_map_set(struct peer
*peer
, afi_t afi
, safi_t safi
,
5831 struct bgp_filter
*filter
;
5832 struct peer_group
*group
;
5833 struct listnode
*node
, *nnode
;
5835 filter
= &peer
->filter
[afi
][safi
];
5837 if (filter
->usmap
.name
)
5838 XFREE(MTYPE_BGP_FILTER_NAME
, filter
->usmap
.name
);
5840 filter
->usmap
.name
= XSTRDUP(MTYPE_BGP_FILTER_NAME
, name
);
5841 filter
->usmap
.map
= route_map_lookup_by_name(name
);
5843 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
5844 peer_on_policy_change(peer
, afi
, safi
, 1);
5848 group
= peer
->group
;
5849 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer
)) {
5850 filter
= &peer
->filter
[afi
][safi
];
5852 if (filter
->usmap
.name
)
5853 XFREE(MTYPE_BGP_FILTER_NAME
, filter
->usmap
.name
);
5854 filter
->usmap
.name
= XSTRDUP(MTYPE_BGP_FILTER_NAME
, name
);
5855 filter
->usmap
.map
= route_map_lookup_by_name(name
);
5856 peer_on_policy_change(peer
, afi
, safi
, 1);
5861 /* Unset route-map from the peer. */
5862 int peer_unsuppress_map_unset(struct peer
*peer
, afi_t afi
, safi_t safi
)
5864 struct bgp_filter
*filter
;
5865 struct peer_group
*group
;
5866 struct listnode
*node
, *nnode
;
5868 filter
= &peer
->filter
[afi
][safi
];
5870 if (filter
->usmap
.name
)
5871 XFREE(MTYPE_BGP_FILTER_NAME
, filter
->usmap
.name
);
5872 filter
->usmap
.name
= NULL
;
5873 filter
->usmap
.map
= NULL
;
5875 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
5876 peer_on_policy_change(peer
, afi
, safi
, 1);
5880 group
= peer
->group
;
5881 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer
)) {
5882 filter
= &peer
->filter
[afi
][safi
];
5884 if (filter
->usmap
.name
)
5885 XFREE(MTYPE_BGP_FILTER_NAME
, filter
->usmap
.name
);
5886 filter
->usmap
.name
= NULL
;
5887 filter
->usmap
.map
= NULL
;
5888 peer_on_policy_change(peer
, afi
, safi
, 1);
5893 int peer_maximum_prefix_set(struct peer
*peer
, afi_t afi
, safi_t safi
,
5894 uint32_t max
, uint8_t threshold
, int warning
,
5897 struct peer_group
*group
;
5898 struct listnode
*node
, *nnode
;
5900 SET_FLAG(peer
->af_flags
[afi
][safi
], PEER_FLAG_MAX_PREFIX
);
5901 peer
->pmax
[afi
][safi
] = max
;
5902 peer
->pmax_threshold
[afi
][safi
] = threshold
;
5903 peer
->pmax_restart
[afi
][safi
] = restart
;
5905 SET_FLAG(peer
->af_flags
[afi
][safi
],
5906 PEER_FLAG_MAX_PREFIX_WARNING
);
5908 UNSET_FLAG(peer
->af_flags
[afi
][safi
],
5909 PEER_FLAG_MAX_PREFIX_WARNING
);
5911 if (CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
5912 group
= peer
->group
;
5913 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer
)) {
5914 SET_FLAG(peer
->af_flags
[afi
][safi
],
5915 PEER_FLAG_MAX_PREFIX
);
5916 peer
->pmax
[afi
][safi
] = max
;
5917 peer
->pmax_threshold
[afi
][safi
] = threshold
;
5918 peer
->pmax_restart
[afi
][safi
] = restart
;
5920 SET_FLAG(peer
->af_flags
[afi
][safi
],
5921 PEER_FLAG_MAX_PREFIX_WARNING
);
5923 UNSET_FLAG(peer
->af_flags
[afi
][safi
],
5924 PEER_FLAG_MAX_PREFIX_WARNING
);
5926 if ((peer
->status
== Established
)
5927 && (peer
->afc
[afi
][safi
]))
5928 bgp_maximum_prefix_overflow(peer
, afi
, safi
, 1);
5931 if ((peer
->status
== Established
) && (peer
->afc
[afi
][safi
]))
5932 bgp_maximum_prefix_overflow(peer
, afi
, safi
, 1);
5938 int peer_maximum_prefix_unset(struct peer
*peer
, afi_t afi
, safi_t safi
)
5940 struct peer_group
*group
;
5941 struct listnode
*node
, *nnode
;
5943 /* apply peer-group config */
5944 if (peer_group_active(peer
)) {
5945 if (CHECK_FLAG(peer
->group
->conf
->af_flags
[afi
][safi
],
5946 PEER_FLAG_MAX_PREFIX
))
5947 SET_FLAG(peer
->af_flags
[afi
][safi
],
5948 PEER_FLAG_MAX_PREFIX
);
5950 UNSET_FLAG(peer
->af_flags
[afi
][safi
],
5951 PEER_FLAG_MAX_PREFIX
);
5953 if (CHECK_FLAG(peer
->group
->conf
->af_flags
[afi
][safi
],
5954 PEER_FLAG_MAX_PREFIX_WARNING
))
5955 SET_FLAG(peer
->af_flags
[afi
][safi
],
5956 PEER_FLAG_MAX_PREFIX_WARNING
);
5958 UNSET_FLAG(peer
->af_flags
[afi
][safi
],
5959 PEER_FLAG_MAX_PREFIX_WARNING
);
5961 peer
->pmax
[afi
][safi
] = peer
->group
->conf
->pmax
[afi
][safi
];
5962 peer
->pmax_threshold
[afi
][safi
] =
5963 peer
->group
->conf
->pmax_threshold
[afi
][safi
];
5964 peer
->pmax_restart
[afi
][safi
] =
5965 peer
->group
->conf
->pmax_restart
[afi
][safi
];
5969 UNSET_FLAG(peer
->af_flags
[afi
][safi
], PEER_FLAG_MAX_PREFIX
);
5970 UNSET_FLAG(peer
->af_flags
[afi
][safi
], PEER_FLAG_MAX_PREFIX_WARNING
);
5971 peer
->pmax
[afi
][safi
] = 0;
5972 peer
->pmax_threshold
[afi
][safi
] = 0;
5973 peer
->pmax_restart
[afi
][safi
] = 0;
5975 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
))
5978 group
= peer
->group
;
5979 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer
)) {
5980 UNSET_FLAG(peer
->af_flags
[afi
][safi
], PEER_FLAG_MAX_PREFIX
);
5981 UNSET_FLAG(peer
->af_flags
[afi
][safi
],
5982 PEER_FLAG_MAX_PREFIX_WARNING
);
5983 peer
->pmax
[afi
][safi
] = 0;
5984 peer
->pmax_threshold
[afi
][safi
] = 0;
5985 peer
->pmax_restart
[afi
][safi
] = 0;
5990 int is_ebgp_multihop_configured(struct peer
*peer
)
5992 struct peer_group
*group
;
5993 struct listnode
*node
, *nnode
;
5996 if (CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
5997 group
= peer
->group
;
5998 if ((peer_sort(peer
) != BGP_PEER_IBGP
)
5999 && (group
->conf
->ttl
!= 1))
6002 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer1
)) {
6003 if ((peer_sort(peer1
) != BGP_PEER_IBGP
)
6004 && (peer1
->ttl
!= 1))
6008 if ((peer_sort(peer
) != BGP_PEER_IBGP
) && (peer
->ttl
!= 1))
6014 /* Set # of hops between us and BGP peer. */
6015 int peer_ttl_security_hops_set(struct peer
*peer
, int gtsm_hops
)
6017 struct peer_group
*group
;
6018 struct listnode
*node
, *nnode
;
6021 zlog_debug("peer_ttl_security_hops_set: set gtsm_hops to %d for %s",
6022 gtsm_hops
, peer
->host
);
6024 /* We cannot configure ttl-security hops when ebgp-multihop is already
6025 set. For non peer-groups, the check is simple. For peer-groups,
6027 slightly messy, because we need to check both the peer-group
6029 and all peer-group members for any trace of ebgp-multihop
6031 before actually applying the ttl-security rules. Cisco really made a
6032 mess of this configuration parameter, and OpenBGPD got it right.
6035 if ((peer
->gtsm_hops
== 0) && (peer
->sort
!= BGP_PEER_IBGP
)) {
6036 if (is_ebgp_multihop_configured(peer
))
6037 return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK
;
6039 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
6040 peer
->gtsm_hops
= gtsm_hops
;
6042 /* Calling ebgp multihop also resets the session.
6043 * On restart, NHT will get setup correctly as will the
6044 * min & max ttls on the socket. The return value is
6047 ret
= peer_ebgp_multihop_set(peer
, MAXTTL
);
6052 group
= peer
->group
;
6053 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
,
6055 peer
->gtsm_hops
= group
->conf
->gtsm_hops
;
6057 /* Calling ebgp multihop also resets the
6059 * On restart, NHT will get setup correctly as
6061 * min & max ttls on the socket. The return
6065 peer_ebgp_multihop_set(peer
, MAXTTL
);
6069 /* Post the first gtsm setup or if its ibgp, maxttl setting
6071 * necessary, just set the minttl.
6073 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
6074 peer
->gtsm_hops
= gtsm_hops
;
6077 sockopt_minttl(peer
->su
.sa
.sa_family
, peer
->fd
,
6078 MAXTTL
+ 1 - gtsm_hops
);
6079 if ((peer
->status
< Established
) && peer
->doppelganger
6080 && (peer
->doppelganger
->fd
>= 0))
6081 sockopt_minttl(peer
->su
.sa
.sa_family
,
6082 peer
->doppelganger
->fd
,
6083 MAXTTL
+ 1 - gtsm_hops
);
6085 group
= peer
->group
;
6086 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
,
6088 peer
->gtsm_hops
= group
->conf
->gtsm_hops
;
6090 /* Change setting of existing peer
6091 * established then change value (may break
6093 * not established yet (teardown session and
6095 * no session then do nothing (will get
6096 * handled by next connection)
6098 if (peer
->fd
>= 0 && peer
->gtsm_hops
!= 0)
6100 peer
->su
.sa
.sa_family
, peer
->fd
,
6101 MAXTTL
+ 1 - peer
->gtsm_hops
);
6102 if ((peer
->status
< Established
)
6103 && peer
->doppelganger
6104 && (peer
->doppelganger
->fd
>= 0))
6105 sockopt_minttl(peer
->su
.sa
.sa_family
,
6106 peer
->doppelganger
->fd
,
6107 MAXTTL
+ 1 - gtsm_hops
);
6115 int peer_ttl_security_hops_unset(struct peer
*peer
)
6117 struct peer_group
*group
;
6118 struct listnode
*node
, *nnode
;
6121 zlog_debug("peer_ttl_security_hops_unset: set gtsm_hops to zero for %s",
6124 /* if a peer-group member, then reset to peer-group default rather than
6126 if (peer_group_active(peer
))
6127 peer
->gtsm_hops
= peer
->group
->conf
->gtsm_hops
;
6129 peer
->gtsm_hops
= 0;
6131 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
6132 /* Invoking ebgp_multihop_set will set the TTL back to the
6134 * value as well as restting the NHT and such. The session is
6137 if (peer
->sort
== BGP_PEER_EBGP
)
6138 ret
= peer_ebgp_multihop_unset(peer
);
6141 sockopt_minttl(peer
->su
.sa
.sa_family
, peer
->fd
,
6144 if ((peer
->status
< Established
) && peer
->doppelganger
6145 && (peer
->doppelganger
->fd
>= 0))
6146 sockopt_minttl(peer
->su
.sa
.sa_family
,
6147 peer
->doppelganger
->fd
, 0);
6150 group
= peer
->group
;
6151 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer
)) {
6152 peer
->gtsm_hops
= 0;
6153 if (peer
->sort
== BGP_PEER_EBGP
)
6154 ret
= peer_ebgp_multihop_unset(peer
);
6157 sockopt_minttl(peer
->su
.sa
.sa_family
,
6160 if ((peer
->status
< Established
)
6161 && peer
->doppelganger
6162 && (peer
->doppelganger
->fd
>= 0))
6163 sockopt_minttl(peer
->su
.sa
.sa_family
,
6164 peer
->doppelganger
->fd
,
6174 * If peer clear is invoked in a loop for all peers on the BGP instance,
6175 * it may end up freeing the doppelganger, and if this was the next node
6176 * to the current node, we would end up accessing the freed next node.
6177 * Pass along additional parameter which can be updated if next node
6178 * is freed; only required when walking the peer list on BGP instance.
6180 int peer_clear(struct peer
*peer
, struct listnode
**nnode
)
6182 if (!CHECK_FLAG(peer
->flags
, PEER_FLAG_SHUTDOWN
)) {
6183 if (CHECK_FLAG(peer
->sflags
, PEER_STATUS_PREFIX_OVERFLOW
)) {
6184 UNSET_FLAG(peer
->sflags
, PEER_STATUS_PREFIX_OVERFLOW
);
6185 if (peer
->t_pmax_restart
) {
6186 BGP_TIMER_OFF(peer
->t_pmax_restart
);
6187 if (bgp_debug_neighbor_events(peer
))
6189 "%s Maximum-prefix restart timer canceled",
6192 BGP_EVENT_ADD(peer
, BGP_Start
);
6196 peer
->v_start
= BGP_INIT_START_TIMER
;
6197 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
))
6198 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
6199 BGP_NOTIFY_CEASE_ADMIN_RESET
);
6201 bgp_session_reset_safe(peer
, nnode
);
6206 int peer_clear_soft(struct peer
*peer
, afi_t afi
, safi_t safi
,
6207 enum bgp_clear_type stype
)
6209 struct peer_af
*paf
;
6211 if (peer
->status
!= Established
)
6214 if (!peer
->afc
[afi
][safi
])
6215 return BGP_ERR_AF_UNCONFIGURED
;
6217 peer
->rtt
= sockopt_tcp_rtt(peer
->fd
);
6219 if (stype
== BGP_CLEAR_SOFT_OUT
|| stype
== BGP_CLEAR_SOFT_BOTH
) {
6220 /* Clear the "neighbor x.x.x.x default-originate" flag */
6221 paf
= peer_af_find(peer
, afi
, safi
);
6222 if (paf
&& paf
->subgroup
6223 && CHECK_FLAG(paf
->subgroup
->sflags
,
6224 SUBGRP_STATUS_DEFAULT_ORIGINATE
))
6225 UNSET_FLAG(paf
->subgroup
->sflags
,
6226 SUBGRP_STATUS_DEFAULT_ORIGINATE
);
6228 bgp_announce_route(peer
, afi
, safi
);
6231 if (stype
== BGP_CLEAR_SOFT_IN_ORF_PREFIX
) {
6232 if (CHECK_FLAG(peer
->af_cap
[afi
][safi
],
6233 PEER_CAP_ORF_PREFIX_SM_ADV
)
6234 && (CHECK_FLAG(peer
->af_cap
[afi
][safi
],
6235 PEER_CAP_ORF_PREFIX_RM_RCV
)
6236 || CHECK_FLAG(peer
->af_cap
[afi
][safi
],
6237 PEER_CAP_ORF_PREFIX_RM_OLD_RCV
))) {
6238 struct bgp_filter
*filter
= &peer
->filter
[afi
][safi
];
6239 uint8_t prefix_type
;
6241 if (CHECK_FLAG(peer
->af_cap
[afi
][safi
],
6242 PEER_CAP_ORF_PREFIX_RM_RCV
))
6243 prefix_type
= ORF_TYPE_PREFIX
;
6245 prefix_type
= ORF_TYPE_PREFIX_OLD
;
6247 if (filter
->plist
[FILTER_IN
].plist
) {
6248 if (CHECK_FLAG(peer
->af_sflags
[afi
][safi
],
6249 PEER_STATUS_ORF_PREFIX_SEND
))
6250 bgp_route_refresh_send(
6251 peer
, afi
, safi
, prefix_type
,
6253 bgp_route_refresh_send(peer
, afi
, safi
,
6255 REFRESH_IMMEDIATE
, 0);
6257 if (CHECK_FLAG(peer
->af_sflags
[afi
][safi
],
6258 PEER_STATUS_ORF_PREFIX_SEND
))
6259 bgp_route_refresh_send(
6260 peer
, afi
, safi
, prefix_type
,
6261 REFRESH_IMMEDIATE
, 1);
6263 bgp_route_refresh_send(peer
, afi
, safi
,
6270 if (stype
== BGP_CLEAR_SOFT_IN
|| stype
== BGP_CLEAR_SOFT_BOTH
6271 || stype
== BGP_CLEAR_SOFT_IN_ORF_PREFIX
) {
6272 /* If neighbor has soft reconfiguration inbound flag.
6273 Use Adj-RIB-In database. */
6274 if (CHECK_FLAG(peer
->af_flags
[afi
][safi
],
6275 PEER_FLAG_SOFT_RECONFIG
))
6276 bgp_soft_reconfig_in(peer
, afi
, safi
);
6278 /* If neighbor has route refresh capability, send route
6280 message to the peer. */
6281 if (CHECK_FLAG(peer
->cap
, PEER_CAP_REFRESH_OLD_RCV
)
6282 || CHECK_FLAG(peer
->cap
, PEER_CAP_REFRESH_NEW_RCV
))
6283 bgp_route_refresh_send(peer
, afi
, safi
, 0, 0,
6286 return BGP_ERR_SOFT_RECONFIG_UNCONFIGURED
;
6292 /* Display peer uptime.*/
6293 char *peer_uptime(time_t uptime2
, char *buf
, size_t len
, uint8_t use_json
,
6296 time_t uptime1
, epoch_tbuf
;
6299 /* Check buffer length. */
6300 if (len
< BGP_UPTIME_LEN
) {
6302 zlog_warn("peer_uptime (): buffer shortage %lu",
6303 (unsigned long)len
);
6304 /* XXX: should return status instead of buf... */
6305 snprintf(buf
, len
, "<error> ");
6310 /* If there is no connection has been done before print `never'. */
6313 json_object_string_add(json
, "peerUptime", "never");
6314 json_object_int_add(json
, "peerUptimeMsec", 0);
6316 snprintf(buf
, len
, "never");
6320 /* Get current time. */
6321 uptime1
= bgp_clock();
6323 tm
= gmtime(&uptime1
);
6325 if (uptime1
< ONE_DAY_SECOND
)
6326 snprintf(buf
, len
, "%02d:%02d:%02d", tm
->tm_hour
, tm
->tm_min
,
6328 else if (uptime1
< ONE_WEEK_SECOND
)
6329 snprintf(buf
, len
, "%dd%02dh%02dm", tm
->tm_yday
, tm
->tm_hour
,
6331 else if (uptime1
< ONE_YEAR_SECOND
)
6332 snprintf(buf
, len
, "%02dw%dd%02dh", tm
->tm_yday
/ 7,
6333 tm
->tm_yday
- ((tm
->tm_yday
/ 7) * 7), tm
->tm_hour
);
6335 snprintf(buf
, len
, "%02dy%02dw%dd", tm
->tm_year
- 70,
6337 tm
->tm_yday
- ((tm
->tm_yday
/ 7) * 7));
6340 epoch_tbuf
= time(NULL
) - uptime1
;
6341 json_object_string_add(json
, "peerUptime", buf
);
6342 json_object_int_add(json
, "peerUptimeMsec", uptime1
* 1000);
6343 json_object_int_add(json
, "peerUptimeEstablishedEpoch",
6350 static void bgp_config_write_filter(struct vty
*vty
, struct peer
*peer
,
6351 afi_t afi
, safi_t safi
)
6353 struct bgp_filter
*filter
;
6354 struct bgp_filter
*gfilter
= NULL
;
6357 int out
= FILTER_OUT
;
6360 filter
= &peer
->filter
[afi
][safi
];
6362 if (peer_group_active(peer
))
6363 gfilter
= &peer
->group
->conf
->filter
[afi
][safi
];
6365 /* distribute-list. */
6366 if (filter
->dlist
[in
].name
)
6367 if (!gfilter
|| !gfilter
->dlist
[in
].name
6368 || strcmp(filter
->dlist
[in
].name
, gfilter
->dlist
[in
].name
)
6370 vty_out(vty
, " neighbor %s distribute-list %s in\n",
6371 addr
, filter
->dlist
[in
].name
);
6374 if (filter
->dlist
[out
].name
&& !gfilter
) {
6375 vty_out(vty
, " neighbor %s distribute-list %s out\n", addr
,
6376 filter
->dlist
[out
].name
);
6380 if (filter
->plist
[in
].name
)
6381 if (!gfilter
|| !gfilter
->plist
[in
].name
6382 || strcmp(filter
->plist
[in
].name
, gfilter
->plist
[in
].name
)
6384 vty_out(vty
, " neighbor %s prefix-list %s in\n", addr
,
6385 filter
->plist
[in
].name
);
6388 if (filter
->plist
[out
].name
)
6389 if (!gfilter
|| !gfilter
->plist
[out
].name
6390 || strcmp(filter
->plist
[out
].name
, gfilter
->plist
[out
].name
)
6392 vty_out(vty
, " neighbor %s prefix-list %s out\n", addr
,
6393 filter
->plist
[out
].name
);
6397 if (filter
->map
[RMAP_IN
].name
)
6398 if (!gfilter
|| !gfilter
->map
[RMAP_IN
].name
6399 || strcmp(filter
->map
[RMAP_IN
].name
,
6400 gfilter
->map
[RMAP_IN
].name
)
6402 vty_out(vty
, " neighbor %s route-map %s in\n", addr
,
6403 filter
->map
[RMAP_IN
].name
);
6406 if (filter
->map
[RMAP_OUT
].name
)
6407 if (!gfilter
|| !gfilter
->map
[RMAP_OUT
].name
6408 || strcmp(filter
->map
[RMAP_OUT
].name
,
6409 gfilter
->map
[RMAP_OUT
].name
)
6411 vty_out(vty
, " neighbor %s route-map %s out\n", addr
,
6412 filter
->map
[RMAP_OUT
].name
);
6415 /* unsuppress-map */
6416 if (filter
->usmap
.name
&& !gfilter
) {
6417 vty_out(vty
, " neighbor %s unsuppress-map %s\n", addr
,
6418 filter
->usmap
.name
);
6422 if (filter
->aslist
[in
].name
)
6423 if (!gfilter
|| !gfilter
->aslist
[in
].name
6424 || strcmp(filter
->aslist
[in
].name
, gfilter
->aslist
[in
].name
)
6426 vty_out(vty
, " neighbor %s filter-list %s in\n", addr
,
6427 filter
->aslist
[in
].name
);
6430 if (filter
->aslist
[out
].name
&& !gfilter
) {
6431 vty_out(vty
, " neighbor %s filter-list %s out\n", addr
,
6432 filter
->aslist
[out
].name
);
6436 /* BGP peer configuration display function. */
6437 static void bgp_config_write_peer_global(struct vty
*vty
, struct bgp
*bgp
,
6440 struct peer
*g_peer
= NULL
;
6441 char buf
[SU_ADDRSTRLEN
];
6443 int if_pg_printed
= FALSE
;
6444 int if_ras_printed
= FALSE
;
6446 /* Skip dynamic neighbors. */
6447 if (peer_dynamic_neighbor(peer
))
6451 addr
= peer
->conf_if
;
6455 /************************************
6456 ****** Global to the neighbor ******
6457 ************************************/
6458 if (peer
->conf_if
) {
6459 if (CHECK_FLAG(peer
->flags
, PEER_FLAG_IFPEER_V6ONLY
))
6460 vty_out(vty
, " neighbor %s interface v6only", addr
);
6462 vty_out(vty
, " neighbor %s interface", addr
);
6464 if (peer_group_active(peer
)) {
6465 vty_out(vty
, " peer-group %s", peer
->group
->name
);
6466 if_pg_printed
= TRUE
;
6467 } else if (peer
->as_type
== AS_SPECIFIED
) {
6468 vty_out(vty
, " remote-as %u", peer
->as
);
6469 if_ras_printed
= TRUE
;
6470 } else if (peer
->as_type
== AS_INTERNAL
) {
6471 vty_out(vty
, " remote-as internal");
6472 if_ras_printed
= TRUE
;
6473 } else if (peer
->as_type
== AS_EXTERNAL
) {
6474 vty_out(vty
, " remote-as external");
6475 if_ras_printed
= TRUE
;
6481 /* remote-as and peer-group */
6482 /* peer is a member of a peer-group */
6483 if (peer_group_active(peer
)) {
6484 g_peer
= peer
->group
->conf
;
6486 if (g_peer
->as_type
== AS_UNSPECIFIED
&& !if_ras_printed
) {
6487 if (peer
->as_type
== AS_SPECIFIED
) {
6488 vty_out(vty
, " neighbor %s remote-as %u\n",
6490 } else if (peer
->as_type
== AS_INTERNAL
) {
6492 " neighbor %s remote-as internal\n",
6494 } else if (peer
->as_type
== AS_EXTERNAL
) {
6496 " neighbor %s remote-as external\n",
6501 /* For swpX peers we displayed the peer-group
6502 * via 'neighbor swpX interface peer-group WORD' */
6504 vty_out(vty
, " neighbor %s peer-group %s\n", addr
,
6508 /* peer is NOT a member of a peer-group */
6510 /* peer is a peer-group, declare the peer-group */
6511 if (CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
6512 vty_out(vty
, " neighbor %s peer-group\n", addr
);
6515 if (!if_ras_printed
) {
6516 if (peer
->as_type
== AS_SPECIFIED
) {
6517 vty_out(vty
, " neighbor %s remote-as %u\n",
6519 } else if (peer
->as_type
== AS_INTERNAL
) {
6521 " neighbor %s remote-as internal\n",
6523 } else if (peer
->as_type
== AS_EXTERNAL
) {
6525 " neighbor %s remote-as external\n",
6532 if (peer
->change_local_as
) {
6533 if (!peer_group_active(peer
)
6534 || peer
->change_local_as
!= g_peer
->change_local_as
6535 || (CHECK_FLAG(peer
->flags
, PEER_FLAG_LOCAL_AS_NO_PREPEND
)
6536 != CHECK_FLAG(g_peer
->flags
,
6537 PEER_FLAG_LOCAL_AS_NO_PREPEND
))
6538 || (CHECK_FLAG(peer
->flags
, PEER_FLAG_LOCAL_AS_REPLACE_AS
)
6539 != CHECK_FLAG(g_peer
->flags
,
6540 PEER_FLAG_LOCAL_AS_REPLACE_AS
))) {
6541 vty_out(vty
, " neighbor %s local-as %u%s%s\n", addr
,
6542 peer
->change_local_as
,
6543 CHECK_FLAG(peer
->flags
,
6544 PEER_FLAG_LOCAL_AS_NO_PREPEND
)
6547 CHECK_FLAG(peer
->flags
,
6548 PEER_FLAG_LOCAL_AS_REPLACE_AS
)
6556 vty_out(vty
, " neighbor %s description %s\n", addr
, peer
->desc
);
6560 if (CHECK_FLAG(peer
->flags
, PEER_FLAG_SHUTDOWN
)) {
6561 if (!peer_group_active(peer
)
6562 || !CHECK_FLAG(g_peer
->flags
, PEER_FLAG_SHUTDOWN
)
6563 || peer
->tx_shutdown_message
) {
6564 if (peer
->tx_shutdown_message
)
6566 " neighbor %s shutdown message %s\n",
6567 addr
, peer
->tx_shutdown_message
);
6569 vty_out(vty
, " neighbor %s shutdown\n", addr
);
6574 if (peer
->bfd_info
) {
6575 if (!peer_group_active(peer
) || !g_peer
->bfd_info
) {
6576 bgp_bfd_peer_config_write(vty
, peer
, addr
);
6581 if (peer
->password
) {
6582 if (!peer_group_active(peer
) || !g_peer
->password
6583 || strcmp(peer
->password
, g_peer
->password
) != 0) {
6584 vty_out(vty
, " neighbor %s password %s\n", addr
,
6590 if (CHECK_FLAG(peer
->flags
, PEER_FLAG_LONESOUL
)) {
6591 if (!peer_group_active(peer
)) {
6592 vty_out(vty
, " neighbor %s solo\n", addr
);
6597 if (peer
->port
!= BGP_PORT_DEFAULT
) {
6598 vty_out(vty
, " neighbor %s port %d\n", addr
, peer
->port
);
6601 /* Local interface name */
6603 vty_out(vty
, " neighbor %s interface %s\n", addr
, peer
->ifname
);
6607 if (CHECK_FLAG(peer
->flags
, PEER_FLAG_PASSIVE
)) {
6608 if (!peer_group_active(peer
)
6609 || !CHECK_FLAG(g_peer
->flags
, PEER_FLAG_PASSIVE
)) {
6610 vty_out(vty
, " neighbor %s passive\n", addr
);
6615 if (peer
->sort
!= BGP_PEER_IBGP
&& peer
->ttl
!= 1
6616 && !(peer
->gtsm_hops
!= 0 && peer
->ttl
== MAXTTL
)) {
6617 if (!peer_group_active(peer
) || g_peer
->ttl
!= peer
->ttl
) {
6618 vty_out(vty
, " neighbor %s ebgp-multihop %d\n", addr
,
6623 /* ttl-security hops */
6624 if (peer
->gtsm_hops
!= 0) {
6625 if (!peer_group_active(peer
)
6626 || g_peer
->gtsm_hops
!= peer
->gtsm_hops
) {
6627 vty_out(vty
, " neighbor %s ttl-security hops %d\n",
6628 addr
, peer
->gtsm_hops
);
6632 /* disable-connected-check */
6633 if (CHECK_FLAG(peer
->flags
, PEER_FLAG_DISABLE_CONNECTED_CHECK
)) {
6634 if (!peer_group_active(peer
)
6635 || !CHECK_FLAG(g_peer
->flags
,
6636 PEER_FLAG_DISABLE_CONNECTED_CHECK
)) {
6637 vty_out(vty
, " neighbor %s disable-connected-check\n",
6643 if (peer
->update_if
) {
6644 if (!peer_group_active(peer
) || !g_peer
->update_if
6645 || strcmp(g_peer
->update_if
, peer
->update_if
) != 0) {
6646 vty_out(vty
, " neighbor %s update-source %s\n", addr
,
6650 if (peer
->update_source
) {
6651 if (!peer_group_active(peer
) || !g_peer
->update_source
6652 || sockunion_cmp(g_peer
->update_source
, peer
->update_source
)
6654 vty_out(vty
, " neighbor %s update-source %s\n", addr
,
6655 sockunion2str(peer
->update_source
, buf
,
6660 /* advertisement-interval */
6661 if (CHECK_FLAG(peer
->config
, PEER_CONFIG_ROUTEADV
)
6662 && ((!peer_group_active(peer
)
6663 && peer
->v_routeadv
!= BGP_DEFAULT_EBGP_ROUTEADV
)
6664 || (peer_group_active(peer
)
6665 && peer
->v_routeadv
!= g_peer
->v_routeadv
))) {
6666 vty_out(vty
, " neighbor %s advertisement-interval %u\n", addr
,
6671 if ((PEER_OR_GROUP_TIMER_SET(peer
))
6672 && ((!peer_group_active(peer
)
6673 && (peer
->keepalive
!= BGP_DEFAULT_KEEPALIVE
6674 || peer
->holdtime
!= BGP_DEFAULT_HOLDTIME
))
6675 || (peer_group_active(peer
)
6676 && (peer
->keepalive
!= g_peer
->keepalive
6677 || peer
->holdtime
!= g_peer
->holdtime
)))) {
6678 vty_out(vty
, " neighbor %s timers %u %u\n", addr
,
6679 peer
->keepalive
, peer
->holdtime
);
6682 if (CHECK_FLAG(peer
->config
, PEER_CONFIG_CONNECT
)
6683 && ((!peer_group_active(peer
)
6684 && peer
->connect
!= BGP_DEFAULT_CONNECT_RETRY
)
6685 || (peer_group_active(peer
)
6686 && peer
->connect
!= g_peer
->connect
)))
6689 vty_out(vty
, " neighbor %s timers connect %u\n", addr
,
6693 /* capability dynamic */
6694 if (CHECK_FLAG(peer
->flags
, PEER_FLAG_DYNAMIC_CAPABILITY
)) {
6695 if (!peer_group_active(peer
)
6696 || !CHECK_FLAG(g_peer
->flags
,
6697 PEER_FLAG_DYNAMIC_CAPABILITY
)) {
6698 vty_out(vty
, " neighbor %s capability dynamic\n", addr
);
6702 /* capability extended-nexthop */
6703 if (peer
->ifp
&& !CHECK_FLAG(peer
->flags
, PEER_FLAG_CAPABILITY_ENHE
)) {
6704 if (!peer_group_active(peer
)
6705 || !CHECK_FLAG(g_peer
->flags
, PEER_FLAG_CAPABILITY_ENHE
)) {
6707 " no neighbor %s capability extended-nexthop\n",
6712 if (!peer
->ifp
&& CHECK_FLAG(peer
->flags
, PEER_FLAG_CAPABILITY_ENHE
)) {
6713 if (!peer_group_active(peer
)
6714 || !CHECK_FLAG(g_peer
->flags
, PEER_FLAG_CAPABILITY_ENHE
)) {
6716 " neighbor %s capability extended-nexthop\n",
6721 /* dont-capability-negotiation */
6722 if (CHECK_FLAG(peer
->flags
, PEER_FLAG_DONT_CAPABILITY
)) {
6723 if (!peer_group_active(peer
)
6724 || !CHECK_FLAG(g_peer
->flags
, PEER_FLAG_DONT_CAPABILITY
)) {
6725 vty_out(vty
, " neighbor %s dont-capability-negotiate\n",
6730 /* override-capability */
6731 if (CHECK_FLAG(peer
->flags
, PEER_FLAG_OVERRIDE_CAPABILITY
)) {
6732 if (!peer_group_active(peer
)
6733 || !CHECK_FLAG(g_peer
->flags
,
6734 PEER_FLAG_OVERRIDE_CAPABILITY
)) {
6735 vty_out(vty
, " neighbor %s override-capability\n",
6740 /* strict-capability-match */
6741 if (CHECK_FLAG(peer
->flags
, PEER_FLAG_STRICT_CAP_MATCH
)) {
6742 if (!peer_group_active(peer
)
6743 || !CHECK_FLAG(g_peer
->flags
, PEER_FLAG_STRICT_CAP_MATCH
)) {
6744 vty_out(vty
, " neighbor %s strict-capability-match\n",
6750 /* BGP peer configuration display function. */
6751 static void bgp_config_write_peer_af(struct vty
*vty
, struct bgp
*bgp
,
6752 struct peer
*peer
, afi_t afi
, safi_t safi
)
6754 struct peer
*g_peer
= NULL
;
6757 /* Skip dynamic neighbors. */
6758 if (peer_dynamic_neighbor(peer
))
6762 addr
= peer
->conf_if
;
6766 /************************************
6767 ****** Per AF to the neighbor ******
6768 ************************************/
6769 if (peer_group_active(peer
)) {
6770 g_peer
= peer
->group
->conf
;
6772 /* If the peer-group is active but peer is not, print a 'no
6774 if (g_peer
->afc
[afi
][safi
] && !peer
->afc
[afi
][safi
]) {
6775 vty_out(vty
, " no neighbor %s activate\n", addr
);
6778 /* If the peer-group is not active but peer is, print an
6780 else if (!g_peer
->afc
[afi
][safi
] && peer
->afc
[afi
][safi
]) {
6781 vty_out(vty
, " neighbor %s activate\n", addr
);
6784 if (peer
->afc
[afi
][safi
]) {
6785 if ((afi
== AFI_IP
) && (safi
== SAFI_UNICAST
)) {
6786 if (bgp_flag_check(bgp
,
6787 BGP_FLAG_NO_DEFAULT_IPV4
)) {
6788 vty_out(vty
, " neighbor %s activate\n",
6792 vty_out(vty
, " neighbor %s activate\n", addr
);
6794 if ((afi
== AFI_IP
) && (safi
== SAFI_UNICAST
)) {
6795 if (!bgp_flag_check(bgp
,
6796 BGP_FLAG_NO_DEFAULT_IPV4
)) {
6798 " no neighbor %s activate\n",
6805 /* addpath TX knobs */
6806 if (peergroup_af_flag_check(peer
, afi
, safi
,
6807 PEER_FLAG_ADDPATH_TX_ALL_PATHS
)) {
6808 vty_out(vty
, " neighbor %s addpath-tx-all-paths\n", addr
);
6811 if (peergroup_af_flag_check(peer
, afi
, safi
,
6812 PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS
)) {
6813 vty_out(vty
, " neighbor %s addpath-tx-bestpath-per-AS\n",
6817 /* ORF capability. */
6818 if (peergroup_af_flag_check(peer
, afi
, safi
, PEER_FLAG_ORF_PREFIX_SM
)
6819 || peergroup_af_flag_check(peer
, afi
, safi
,
6820 PEER_FLAG_ORF_PREFIX_RM
)) {
6821 vty_out(vty
, " neighbor %s capability orf prefix-list", addr
);
6823 if (peergroup_af_flag_check(peer
, afi
, safi
,
6824 PEER_FLAG_ORF_PREFIX_SM
)
6825 && peergroup_af_flag_check(peer
, afi
, safi
,
6826 PEER_FLAG_ORF_PREFIX_RM
))
6827 vty_out(vty
, " both");
6828 else if (peergroup_af_flag_check(peer
, afi
, safi
,
6829 PEER_FLAG_ORF_PREFIX_SM
))
6830 vty_out(vty
, " send");
6832 vty_out(vty
, " receive");
6836 /* Route reflector client. */
6837 if (peergroup_af_flag_check(peer
, afi
, safi
,
6838 PEER_FLAG_REFLECTOR_CLIENT
)) {
6839 vty_out(vty
, " neighbor %s route-reflector-client\n", addr
);
6842 /* next-hop-self force */
6843 if (peergroup_af_flag_check(peer
, afi
, safi
,
6844 PEER_FLAG_FORCE_NEXTHOP_SELF
)) {
6845 vty_out(vty
, " neighbor %s next-hop-self force\n", addr
);
6849 if (peergroup_af_flag_check(peer
, afi
, safi
, PEER_FLAG_NEXTHOP_SELF
)) {
6850 vty_out(vty
, " neighbor %s next-hop-self\n", addr
);
6853 /* remove-private-AS */
6854 if (peergroup_af_flag_check(peer
, afi
, safi
,
6855 PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE
)) {
6856 vty_out(vty
, " neighbor %s remove-private-AS all replace-AS\n",
6860 else if (peergroup_af_flag_check(peer
, afi
, safi
,
6861 PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE
)) {
6862 vty_out(vty
, " neighbor %s remove-private-AS replace-AS\n",
6866 else if (peergroup_af_flag_check(peer
, afi
, safi
,
6867 PEER_FLAG_REMOVE_PRIVATE_AS_ALL
)) {
6868 vty_out(vty
, " neighbor %s remove-private-AS all\n", addr
);
6871 else if (peergroup_af_flag_check(peer
, afi
, safi
,
6872 PEER_FLAG_REMOVE_PRIVATE_AS
)) {
6873 vty_out(vty
, " neighbor %s remove-private-AS\n", addr
);
6877 if (peergroup_af_flag_check(peer
, afi
, safi
, PEER_FLAG_AS_OVERRIDE
)) {
6878 vty_out(vty
, " neighbor %s as-override\n", addr
);
6881 /* send-community print. */
6882 if (bgp_option_check(BGP_OPT_CONFIG_CISCO
)) {
6883 if (peergroup_af_flag_check(peer
, afi
, safi
,
6884 PEER_FLAG_SEND_COMMUNITY
)
6885 && peergroup_af_flag_check(peer
, afi
, safi
,
6886 PEER_FLAG_SEND_EXT_COMMUNITY
)
6887 && peergroup_af_flag_check(
6889 PEER_FLAG_SEND_LARGE_COMMUNITY
)) {
6890 vty_out(vty
, " neighbor %s send-community all\n",
6892 } else if (peergroup_af_flag_check(
6894 PEER_FLAG_SEND_LARGE_COMMUNITY
)) {
6895 vty_out(vty
, " neighbor %s send-community large\n",
6897 } else if (peergroup_af_flag_check(
6899 PEER_FLAG_SEND_EXT_COMMUNITY
)) {
6900 vty_out(vty
, " neighbor %s send-community extended\n",
6902 } else if (peergroup_af_flag_check(peer
, afi
, safi
,
6903 PEER_FLAG_SEND_COMMUNITY
)) {
6904 vty_out(vty
, " neighbor %s send-community\n", addr
);
6907 if (!peer_af_flag_check(peer
, afi
, safi
,
6908 PEER_FLAG_SEND_COMMUNITY
)
6909 && (!g_peer
|| peer_af_flag_check(g_peer
, afi
, safi
,
6910 PEER_FLAG_SEND_COMMUNITY
))
6911 && !peer_af_flag_check(peer
, afi
, safi
,
6912 PEER_FLAG_SEND_EXT_COMMUNITY
)
6914 || peer_af_flag_check(g_peer
, afi
, safi
,
6915 PEER_FLAG_SEND_EXT_COMMUNITY
))
6916 && !peer_af_flag_check(peer
, afi
, safi
,
6917 PEER_FLAG_SEND_LARGE_COMMUNITY
)
6918 && (!g_peer
|| peer_af_flag_check(
6920 PEER_FLAG_SEND_LARGE_COMMUNITY
))) {
6921 vty_out(vty
, " no neighbor %s send-community all\n",
6924 if (!peer_af_flag_check(peer
, afi
, safi
,
6925 PEER_FLAG_SEND_LARGE_COMMUNITY
)
6927 || peer_af_flag_check(
6929 PEER_FLAG_SEND_LARGE_COMMUNITY
))) {
6931 " no neighbor %s send-community large\n",
6935 if (!peer_af_flag_check(peer
, afi
, safi
,
6936 PEER_FLAG_SEND_EXT_COMMUNITY
)
6938 || peer_af_flag_check(
6940 PEER_FLAG_SEND_EXT_COMMUNITY
))) {
6942 " no neighbor %s send-community extended\n",
6946 if (!peer_af_flag_check(peer
, afi
, safi
,
6947 PEER_FLAG_SEND_COMMUNITY
)
6948 && (!g_peer
|| peer_af_flag_check(
6950 PEER_FLAG_SEND_COMMUNITY
))) {
6952 " no neighbor %s send-community\n",
6958 /* Default information */
6959 if (peergroup_af_flag_check(peer
, afi
, safi
,
6960 PEER_FLAG_DEFAULT_ORIGINATE
)
6962 && ((peer
->default_rmap
[afi
][safi
].name
6963 && !g_peer
->default_rmap
[afi
][safi
].name
)
6964 || (!peer
->default_rmap
[afi
][safi
].name
6965 && g_peer
->default_rmap
[afi
][safi
].name
)
6966 || (peer
->default_rmap
[afi
][safi
].name
6967 && strcmp(peer
->default_rmap
[afi
][safi
].name
,
6968 g_peer
->default_rmap
[afi
][safi
].name
))))) {
6969 vty_out(vty
, " neighbor %s default-originate", addr
);
6970 if (peer
->default_rmap
[afi
][safi
].name
)
6971 vty_out(vty
, " route-map %s",
6972 peer
->default_rmap
[afi
][safi
].name
);
6976 /* Soft reconfiguration inbound. */
6977 if (peergroup_af_flag_check(peer
, afi
, safi
, PEER_FLAG_SOFT_RECONFIG
)) {
6978 vty_out(vty
, " neighbor %s soft-reconfiguration inbound\n",
6982 /* maximum-prefix. */
6983 if (CHECK_FLAG(peer
->af_flags
[afi
][safi
], PEER_FLAG_MAX_PREFIX
))
6984 if (!peer_group_active(peer
)
6985 || g_peer
->pmax
[afi
][safi
] != peer
->pmax
[afi
][safi
]
6986 || g_peer
->pmax_threshold
[afi
][safi
]
6987 != peer
->pmax_threshold
[afi
][safi
]
6988 || CHECK_FLAG(g_peer
->af_flags
[afi
][safi
],
6989 PEER_FLAG_MAX_PREFIX_WARNING
)
6990 != CHECK_FLAG(peer
->af_flags
[afi
][safi
],
6991 PEER_FLAG_MAX_PREFIX_WARNING
)) {
6992 vty_out(vty
, " neighbor %s maximum-prefix %lu", addr
,
6993 peer
->pmax
[afi
][safi
]);
6994 if (peer
->pmax_threshold
[afi
][safi
]
6995 != MAXIMUM_PREFIX_THRESHOLD_DEFAULT
)
6997 peer
->pmax_threshold
[afi
][safi
]);
6998 if (CHECK_FLAG(peer
->af_flags
[afi
][safi
],
6999 PEER_FLAG_MAX_PREFIX_WARNING
))
7000 vty_out(vty
, " warning-only");
7001 if (peer
->pmax_restart
[afi
][safi
])
7002 vty_out(vty
, " restart %u",
7003 peer
->pmax_restart
[afi
][safi
]);
7007 /* Route server client. */
7008 if (peergroup_af_flag_check(peer
, afi
, safi
,
7009 PEER_FLAG_RSERVER_CLIENT
)) {
7010 vty_out(vty
, " neighbor %s route-server-client\n", addr
);
7013 /* Nexthop-local unchanged. */
7014 if (peergroup_af_flag_check(peer
, afi
, safi
,
7015 PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED
)) {
7016 vty_out(vty
, " neighbor %s nexthop-local unchanged\n", addr
);
7019 /* allowas-in <1-10> */
7020 if (peer_af_flag_check(peer
, afi
, safi
, PEER_FLAG_ALLOWAS_IN
)) {
7021 if (!peer_group_active(peer
)
7022 || !peer_af_flag_check(g_peer
, afi
, safi
,
7023 PEER_FLAG_ALLOWAS_IN
)
7024 || peer
->allowas_in
[afi
][safi
]
7025 != g_peer
->allowas_in
[afi
][safi
]) {
7026 if (peer
->allowas_in
[afi
][safi
] == 3) {
7027 vty_out(vty
, " neighbor %s allowas-in\n",
7030 vty_out(vty
, " neighbor %s allowas-in %d\n",
7031 addr
, peer
->allowas_in
[afi
][safi
]);
7036 /* allowas-in origin */
7037 else if (peer_af_flag_check(peer
, afi
, safi
,
7038 PEER_FLAG_ALLOWAS_IN_ORIGIN
)) {
7039 if (!peer_group_active(peer
)
7040 || !peer_af_flag_check(g_peer
, afi
, safi
,
7041 PEER_FLAG_ALLOWAS_IN_ORIGIN
)) {
7042 vty_out(vty
, " neighbor %s allowas-in origin\n", addr
);
7047 if (peer_af_flag_check(peer
, afi
, safi
, PEER_FLAG_WEIGHT
))
7048 if (!peer_group_active(peer
)
7049 || !peer_af_flag_check(g_peer
, afi
, safi
, PEER_FLAG_WEIGHT
)
7050 || peer
->weight
[afi
][safi
] != g_peer
->weight
[afi
][safi
]) {
7051 if (peer
->weight
[afi
][safi
]) {
7052 vty_out(vty
, " neighbor %s weight %lu\n", addr
,
7053 peer
->weight
[afi
][safi
]);
7058 bgp_config_write_filter(vty
, peer
, afi
, safi
);
7060 /* atribute-unchanged. */
7061 if (peer_af_flag_check(peer
, afi
, safi
, PEER_FLAG_AS_PATH_UNCHANGED
)
7062 || peer_af_flag_check(peer
, afi
, safi
, PEER_FLAG_NEXTHOP_UNCHANGED
)
7063 || peer_af_flag_check(peer
, afi
, safi
, PEER_FLAG_MED_UNCHANGED
)) {
7065 if (!peer_group_active(peer
)
7066 || peergroup_af_flag_check(peer
, afi
, safi
,
7067 PEER_FLAG_AS_PATH_UNCHANGED
)
7068 || peergroup_af_flag_check(peer
, afi
, safi
,
7069 PEER_FLAG_NEXTHOP_UNCHANGED
)
7070 || peergroup_af_flag_check(peer
, afi
, safi
,
7071 PEER_FLAG_MED_UNCHANGED
)) {
7074 " neighbor %s attribute-unchanged%s%s%s\n",
7076 peer_af_flag_check(peer
, afi
, safi
,
7077 PEER_FLAG_AS_PATH_UNCHANGED
)
7080 peer_af_flag_check(peer
, afi
, safi
,
7081 PEER_FLAG_NEXTHOP_UNCHANGED
)
7084 peer_af_flag_check(peer
, afi
, safi
,
7085 PEER_FLAG_MED_UNCHANGED
)
7092 /* Address family based peer configuration display. */
7093 static void bgp_config_write_family(struct vty
*vty
, struct bgp
*bgp
, afi_t afi
,
7097 struct peer_group
*group
;
7098 struct listnode
*node
, *nnode
;
7101 vty_frame(vty
, " !\n address-family ");
7102 if (afi
== AFI_IP
) {
7103 if (safi
== SAFI_UNICAST
)
7104 vty_frame(vty
, "ipv4 unicast");
7105 else if (safi
== SAFI_LABELED_UNICAST
)
7106 vty_frame(vty
, "ipv4 labeled-unicast");
7107 else if (safi
== SAFI_MULTICAST
)
7108 vty_frame(vty
, "ipv4 multicast");
7109 else if (safi
== SAFI_MPLS_VPN
)
7110 vty_frame(vty
, "ipv4 vpn");
7111 else if (safi
== SAFI_ENCAP
)
7112 vty_frame(vty
, "ipv4 encap");
7113 else if (safi
== SAFI_FLOWSPEC
)
7114 vty_frame(vty
, "ipv4 flowspec");
7115 } else if (afi
== AFI_IP6
) {
7116 if (safi
== SAFI_UNICAST
)
7117 vty_frame(vty
, "ipv6 unicast");
7118 else if (safi
== SAFI_LABELED_UNICAST
)
7119 vty_frame(vty
, "ipv6 labeled-unicast");
7120 else if (safi
== SAFI_MULTICAST
)
7121 vty_frame(vty
, "ipv6 multicast");
7122 else if (safi
== SAFI_MPLS_VPN
)
7123 vty_frame(vty
, "ipv6 vpn");
7124 else if (safi
== SAFI_ENCAP
)
7125 vty_frame(vty
, "ipv6 encap");
7126 else if (safi
== SAFI_FLOWSPEC
)
7127 vty_frame(vty
, "ipv6 flowspec");
7128 } else if (afi
== AFI_L2VPN
) {
7129 if (safi
== SAFI_EVPN
)
7130 vty_frame(vty
, "l2vpn evpn");
7132 vty_frame(vty
, "\n");
7134 bgp_config_write_distance(vty
, bgp
, afi
, safi
);
7136 bgp_config_write_network(vty
, bgp
, afi
, safi
);
7138 bgp_config_write_redistribute(vty
, bgp
, afi
, safi
);
7140 for (ALL_LIST_ELEMENTS(bgp
->group
, node
, nnode
, group
))
7141 bgp_config_write_peer_af(vty
, bgp
, group
->conf
, afi
, safi
);
7143 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
7144 /* Skip dynamic neighbors. */
7145 if (peer_dynamic_neighbor(peer
))
7148 /* Do not display doppelganger peers */
7149 if (CHECK_FLAG(peer
->flags
, PEER_FLAG_CONFIG_NODE
))
7150 bgp_config_write_peer_af(vty
, bgp
, peer
, afi
, safi
);
7153 bgp_config_write_maxpaths(vty
, bgp
, afi
, safi
);
7154 bgp_config_write_table_map(vty
, bgp
, afi
, safi
);
7156 if (safi
== SAFI_EVPN
)
7157 bgp_config_write_evpn_info(vty
, bgp
, afi
, safi
);
7159 if (safi
== SAFI_UNICAST
) {
7160 bgp_vpn_policy_config_write_afi(vty
, bgp
, afi
);
7161 if (CHECK_FLAG(bgp
->af_flags
[afi
][safi
],
7162 BGP_CONFIG_VRF_TO_MPLSVPN_EXPORT
)) {
7164 vty_out(vty
, " export vpn\n");
7166 if (CHECK_FLAG(bgp
->af_flags
[afi
][safi
],
7167 BGP_CONFIG_MPLSVPN_TO_VRF_IMPORT
)) {
7169 vty_out(vty
, " import vpn\n");
7173 vty_endframe(vty
, " exit-address-family\n");
7176 int bgp_config_write(struct vty
*vty
)
7180 struct peer_group
*group
;
7182 struct listnode
*node
, *nnode
;
7183 struct listnode
*mnode
, *mnnode
;
7185 /* BGP Multiple instance. */
7186 if (!bgp_option_check(BGP_OPT_MULTIPLE_INSTANCE
)) {
7187 vty_out(vty
, "no bgp multiple-instance\n");
7191 /* BGP Config type. */
7192 if (bgp_option_check(BGP_OPT_CONFIG_CISCO
)) {
7193 vty_out(vty
, "bgp config-type cisco\n");
7197 if (bm
->rmap_update_timer
!= RMAP_DEFAULT_UPDATE_TIMER
)
7198 vty_out(vty
, "bgp route-map delay-timer %u\n",
7199 bm
->rmap_update_timer
);
7202 vty_out(vty
, "!\n");
7204 /* BGP configuration. */
7205 for (ALL_LIST_ELEMENTS(bm
->bgp
, mnode
, mnnode
, bgp
)) {
7207 /* skip all auto created vrf as they dont have user config */
7208 if (CHECK_FLAG(bgp
->vrf_flags
, BGP_VRF_AUTO
))
7211 /* Router bgp ASN */
7212 vty_out(vty
, "router bgp %u", bgp
->as
);
7214 if (bgp_option_check(BGP_OPT_MULTIPLE_INSTANCE
)) {
7216 vty_out(vty
, " %s %s",
7218 == BGP_INSTANCE_TYPE_VIEW
)
7225 /* No Synchronization */
7226 if (bgp_option_check(BGP_OPT_CONFIG_CISCO
))
7227 vty_out(vty
, " no synchronization\n");
7229 /* BGP fast-external-failover. */
7230 if (CHECK_FLAG(bgp
->flags
, BGP_FLAG_NO_FAST_EXT_FAILOVER
))
7231 vty_out(vty
, " no bgp fast-external-failover\n");
7233 /* BGP router ID. */
7234 if (bgp
->router_id_static
.s_addr
!= 0)
7235 vty_out(vty
, " bgp router-id %s\n",
7236 inet_ntoa(bgp
->router_id_static
));
7238 /* BGP log-neighbor-changes. */
7239 if (!!bgp_flag_check(bgp
, BGP_FLAG_LOG_NEIGHBOR_CHANGES
)
7240 != DFLT_BGP_LOG_NEIGHBOR_CHANGES
)
7241 vty_out(vty
, " %sbgp log-neighbor-changes\n",
7243 BGP_FLAG_LOG_NEIGHBOR_CHANGES
)
7247 /* BGP configuration. */
7248 if (bgp_flag_check(bgp
, BGP_FLAG_ALWAYS_COMPARE_MED
))
7249 vty_out(vty
, " bgp always-compare-med\n");
7251 /* BGP default ipv4-unicast. */
7252 if (bgp_flag_check(bgp
, BGP_FLAG_NO_DEFAULT_IPV4
))
7253 vty_out(vty
, " no bgp default ipv4-unicast\n");
7255 /* BGP default local-preference. */
7256 if (bgp
->default_local_pref
!= BGP_DEFAULT_LOCAL_PREF
)
7257 vty_out(vty
, " bgp default local-preference %u\n",
7258 bgp
->default_local_pref
);
7260 /* BGP default show-hostname */
7261 if (!!bgp_flag_check(bgp
, BGP_FLAG_SHOW_HOSTNAME
)
7262 != DFLT_BGP_SHOW_HOSTNAME
)
7263 vty_out(vty
, " %sbgp default show-hostname\n",
7264 bgp_flag_check(bgp
, BGP_FLAG_SHOW_HOSTNAME
)
7268 /* BGP default subgroup-pkt-queue-max. */
7269 if (bgp
->default_subgroup_pkt_queue_max
7270 != BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX
)
7271 vty_out(vty
, " bgp default subgroup-pkt-queue-max %u\n",
7272 bgp
->default_subgroup_pkt_queue_max
);
7274 /* BGP default autoshutdown neighbors */
7275 if (bgp
->autoshutdown
)
7276 vty_out(vty
, " bgp default shutdown\n");
7278 /* BGP client-to-client reflection. */
7279 if (bgp_flag_check(bgp
, BGP_FLAG_NO_CLIENT_TO_CLIENT
))
7280 vty_out(vty
, " no bgp client-to-client reflection\n");
7282 /* BGP cluster ID. */
7283 if (CHECK_FLAG(bgp
->config
, BGP_CONFIG_CLUSTER_ID
))
7284 vty_out(vty
, " bgp cluster-id %s\n",
7285 inet_ntoa(bgp
->cluster_id
));
7287 /* Disable ebgp connected nexthop check */
7288 if (bgp_flag_check(bgp
, BGP_FLAG_DISABLE_NH_CONNECTED_CHK
))
7290 " bgp disable-ebgp-connected-route-check\n");
7292 /* Confederation identifier*/
7293 if (CHECK_FLAG(bgp
->config
, BGP_CONFIG_CONFEDERATION
))
7294 vty_out(vty
, " bgp confederation identifier %i\n",
7297 /* Confederation peer */
7298 if (bgp
->confed_peers_cnt
> 0) {
7301 vty_out(vty
, " bgp confederation peers");
7303 for (i
= 0; i
< bgp
->confed_peers_cnt
; i
++)
7304 vty_out(vty
, " %u", bgp
->confed_peers
[i
]);
7309 /* BGP enforce-first-as. */
7310 if (bgp_flag_check(bgp
, BGP_FLAG_ENFORCE_FIRST_AS
))
7311 vty_out(vty
, " bgp enforce-first-as\n");
7313 /* BGP deterministic-med. */
7314 if (!!bgp_flag_check(bgp
, BGP_FLAG_DETERMINISTIC_MED
)
7315 != DFLT_BGP_DETERMINISTIC_MED
)
7316 vty_out(vty
, " %sbgp deterministic-med\n",
7317 bgp_flag_check(bgp
, BGP_FLAG_DETERMINISTIC_MED
)
7321 /* BGP update-delay. */
7322 bgp_config_write_update_delay(vty
, bgp
);
7324 if (bgp
->v_maxmed_onstartup
7325 != BGP_MAXMED_ONSTARTUP_UNCONFIGURED
) {
7326 vty_out(vty
, " bgp max-med on-startup %u",
7327 bgp
->v_maxmed_onstartup
);
7328 if (bgp
->maxmed_onstartup_value
7329 != BGP_MAXMED_VALUE_DEFAULT
)
7331 bgp
->maxmed_onstartup_value
);
7334 if (bgp
->v_maxmed_admin
!= BGP_MAXMED_ADMIN_UNCONFIGURED
) {
7335 vty_out(vty
, " bgp max-med administrative");
7336 if (bgp
->maxmed_admin_value
!= BGP_MAXMED_VALUE_DEFAULT
)
7337 vty_out(vty
, " %u", bgp
->maxmed_admin_value
);
7342 bgp_config_write_wpkt_quanta(vty
, bgp
);
7344 bgp_config_write_rpkt_quanta(vty
, bgp
);
7347 bgp_config_write_coalesce_time(vty
, bgp
);
7349 /* BGP graceful-restart. */
7350 if (bgp
->stalepath_time
!= BGP_DEFAULT_STALEPATH_TIME
)
7352 " bgp graceful-restart stalepath-time %u\n",
7353 bgp
->stalepath_time
);
7354 if (bgp
->restart_time
!= BGP_DEFAULT_RESTART_TIME
)
7355 vty_out(vty
, " bgp graceful-restart restart-time %u\n",
7357 if (bgp_flag_check(bgp
, BGP_FLAG_GRACEFUL_RESTART
))
7358 vty_out(vty
, " bgp graceful-restart\n");
7360 /* BGP graceful-shutdown */
7361 if (bgp_flag_check(bgp
, BGP_FLAG_GRACEFUL_SHUTDOWN
))
7362 vty_out(vty
, " bgp graceful-shutdown\n");
7364 /* BGP graceful-restart Preserve State F bit. */
7365 if (bgp_flag_check(bgp
, BGP_FLAG_GR_PRESERVE_FWD
))
7367 " bgp graceful-restart preserve-fw-state\n");
7369 /* BGP bestpath method. */
7370 if (bgp_flag_check(bgp
, BGP_FLAG_ASPATH_IGNORE
))
7371 vty_out(vty
, " bgp bestpath as-path ignore\n");
7372 if (bgp_flag_check(bgp
, BGP_FLAG_ASPATH_CONFED
))
7373 vty_out(vty
, " bgp bestpath as-path confed\n");
7375 if (bgp_flag_check(bgp
, BGP_FLAG_ASPATH_MULTIPATH_RELAX
)) {
7376 if (bgp_flag_check(bgp
,
7377 BGP_FLAG_MULTIPATH_RELAX_AS_SET
)) {
7379 " bgp bestpath as-path multipath-relax as-set\n");
7382 " bgp bestpath as-path multipath-relax\n");
7386 if (bgp_flag_check(bgp
, BGP_FLAG_RR_ALLOW_OUTBOUND_POLICY
)) {
7388 " bgp route-reflector allow-outbound-policy\n");
7390 if (bgp_flag_check(bgp
, BGP_FLAG_COMPARE_ROUTER_ID
))
7391 vty_out(vty
, " bgp bestpath compare-routerid\n");
7392 if (bgp_flag_check(bgp
, BGP_FLAG_MED_CONFED
)
7393 || bgp_flag_check(bgp
, BGP_FLAG_MED_MISSING_AS_WORST
)) {
7394 vty_out(vty
, " bgp bestpath med");
7395 if (bgp_flag_check(bgp
, BGP_FLAG_MED_CONFED
))
7396 vty_out(vty
, " confed");
7397 if (bgp_flag_check(bgp
, BGP_FLAG_MED_MISSING_AS_WORST
))
7398 vty_out(vty
, " missing-as-worst");
7402 /* BGP network import check. */
7403 if (!!bgp_flag_check(bgp
, BGP_FLAG_IMPORT_CHECK
)
7404 != DFLT_BGP_IMPORT_CHECK
)
7405 vty_out(vty
, " %sbgp network import-check\n",
7406 bgp_flag_check(bgp
, BGP_FLAG_IMPORT_CHECK
)
7410 /* BGP flag dampening. */
7411 if (CHECK_FLAG(bgp
->af_flags
[AFI_IP
][SAFI_UNICAST
],
7412 BGP_CONFIG_DAMPENING
))
7413 bgp_config_write_damp(vty
);
7415 /* BGP timers configuration. */
7416 if (bgp
->default_keepalive
!= BGP_DEFAULT_KEEPALIVE
7417 && bgp
->default_holdtime
!= BGP_DEFAULT_HOLDTIME
)
7418 vty_out(vty
, " timers bgp %u %u\n",
7419 bgp
->default_keepalive
, bgp
->default_holdtime
);
7422 for (ALL_LIST_ELEMENTS(bgp
->group
, node
, nnode
, group
)) {
7423 bgp_config_write_peer_global(vty
, bgp
, group
->conf
);
7426 /* Normal neighbor configuration. */
7427 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
7428 if (CHECK_FLAG(peer
->flags
, PEER_FLAG_CONFIG_NODE
))
7429 bgp_config_write_peer_global(vty
, bgp
, peer
);
7432 /* listen range and limit for dynamic BGP neighbors */
7433 bgp_config_write_listen(vty
, bgp
);
7435 /* No auto-summary */
7436 if (bgp_option_check(BGP_OPT_CONFIG_CISCO
))
7437 vty_out(vty
, " no auto-summary\n");
7439 /* IPv4 unicast configuration. */
7440 bgp_config_write_family(vty
, bgp
, AFI_IP
, SAFI_UNICAST
);
7442 /* IPv4 multicast configuration. */
7443 bgp_config_write_family(vty
, bgp
, AFI_IP
, SAFI_MULTICAST
);
7445 /* IPv4 labeled-unicast configuration. */
7446 bgp_config_write_family(vty
, bgp
, AFI_IP
, SAFI_LABELED_UNICAST
);
7448 /* IPv4 VPN configuration. */
7449 bgp_config_write_family(vty
, bgp
, AFI_IP
, SAFI_MPLS_VPN
);
7451 /* ENCAPv4 configuration. */
7452 bgp_config_write_family(vty
, bgp
, AFI_IP
, SAFI_ENCAP
);
7454 /* FLOWSPEC v4 configuration. */
7455 bgp_config_write_family(vty
, bgp
, AFI_IP
, SAFI_FLOWSPEC
);
7457 /* IPv6 unicast configuration. */
7458 bgp_config_write_family(vty
, bgp
, AFI_IP6
, SAFI_UNICAST
);
7460 /* IPv6 multicast configuration. */
7461 bgp_config_write_family(vty
, bgp
, AFI_IP6
, SAFI_MULTICAST
);
7463 /* IPv6 labeled-unicast configuration. */
7464 bgp_config_write_family(vty
, bgp
, AFI_IP6
,
7465 SAFI_LABELED_UNICAST
);
7467 /* IPv6 VPN configuration. */
7468 bgp_config_write_family(vty
, bgp
, AFI_IP6
, SAFI_MPLS_VPN
);
7470 /* ENCAPv6 configuration. */
7471 bgp_config_write_family(vty
, bgp
, AFI_IP6
, SAFI_ENCAP
);
7473 /* FLOWSPEC v6 configuration. */
7474 bgp_config_write_family(vty
, bgp
, AFI_IP6
, SAFI_FLOWSPEC
);
7476 /* EVPN configuration. */
7477 bgp_config_write_family(vty
, bgp
, AFI_L2VPN
, SAFI_EVPN
);
7480 bgp_rfapi_cfg_write(vty
, bgp
);
7483 vty_out(vty
, "!\n");
7488 void bgp_master_init(struct thread_master
*master
)
7492 memset(&bgp_master
, 0, sizeof(struct bgp_master
));
7495 bm
->bgp
= list_new();
7496 bm
->listen_sockets
= list_new();
7497 bm
->port
= BGP_PORT_DEFAULT
;
7498 bm
->master
= master
;
7499 bm
->start_time
= bgp_clock();
7500 bm
->t_rmap_update
= NULL
;
7501 bm
->rmap_update_timer
= RMAP_DEFAULT_UPDATE_TIMER
;
7503 bgp_process_queue_init();
7505 /* init the rd id space.
7506 assign 0th index in the bitfield,
7507 so that we start with id 1
7509 bf_init(bm
->rd_idspace
, UINT16_MAX
);
7510 bf_assign_zero_index(bm
->rd_idspace
);
7512 /* Enable multiple instances by default. */
7513 bgp_option_set(BGP_OPT_MULTIPLE_INSTANCE
);
7515 QOBJ_REG(bm
, bgp_master
);
7519 * Free up connected routes and interfaces for a BGP instance. Invoked upon
7520 * instance delete (non-default only) or BGP exit.
7522 static void bgp_if_finish(struct bgp
*bgp
)
7524 struct vrf
*vrf
= vrf_lookup_by_id(bgp
->vrf_id
);
7525 struct interface
*ifp
;
7527 if (bgp
->inst_type
== BGP_INSTANCE_TYPE_VIEW
|| !vrf
)
7530 FOR_ALL_INTERFACES (vrf
, ifp
) {
7531 struct listnode
*c_node
, *c_nnode
;
7532 struct connected
*c
;
7534 for (ALL_LIST_ELEMENTS(ifp
->connected
, c_node
, c_nnode
, c
))
7535 bgp_connected_delete(bgp
, c
);
7539 extern void bgp_snmp_init(void);
7541 static void bgp_viewvrf_autocomplete(vector comps
, struct cmd_token
*token
)
7543 struct vrf
*vrf
= NULL
;
7544 struct listnode
*next
;
7547 RB_FOREACH (vrf
, vrf_name_head
, &vrfs_by_name
) {
7548 if (vrf
->vrf_id
!= VRF_DEFAULT
)
7549 vector_set(comps
, XSTRDUP(MTYPE_COMPLETION
, vrf
->name
));
7552 for (ALL_LIST_ELEMENTS_RO(bm
->bgp
, next
, bgp
)) {
7553 if (bgp
->inst_type
!= BGP_INSTANCE_TYPE_VIEW
)
7556 vector_set(comps
, XSTRDUP(MTYPE_COMPLETION
, bgp
->name
));
7560 static const struct cmd_variable_handler bgp_viewvrf_var_handlers
[] = {
7561 {.tokenname
= "VIEWVRFNAME", .completions
= bgp_viewvrf_autocomplete
},
7562 {.completions
= NULL
},
7565 static void bgp_pthreads_init()
7569 struct frr_pthread_attr io
= {
7571 .start
= frr_pthread_attr_default
.start
,
7572 .stop
= frr_pthread_attr_default
.stop
,
7574 struct frr_pthread_attr ka
= {
7575 .id
= PTHREAD_KEEPALIVES
,
7576 .start
= bgp_keepalives_start
,
7577 .stop
= bgp_keepalives_stop
,
7579 frr_pthread_new(&io
, "BGP I/O thread");
7580 frr_pthread_new(&ka
, "BGP Keepalives thread");
7583 void bgp_pthreads_run()
7585 struct frr_pthread
*io
= frr_pthread_get(PTHREAD_IO
);
7586 struct frr_pthread
*ka
= frr_pthread_get(PTHREAD_KEEPALIVES
);
7588 frr_pthread_run(io
, NULL
);
7589 frr_pthread_run(ka
, NULL
);
7591 /* Wait until threads are ready. */
7592 frr_pthread_wait_running(io
);
7593 frr_pthread_wait_running(ka
);
7596 void bgp_pthreads_finish()
7598 frr_pthread_stop_all();
7599 frr_pthread_finish();
7605 /* allocates some vital data structures used by peer commands in
7608 /* pre-init pthreads */
7609 bgp_pthreads_init();
7612 bgp_zebra_init(bm
->master
);
7615 vnc_zebra_init(bm
->master
);
7618 /* BGP VTY commands installation. */
7626 bgp_route_map_init();
7627 bgp_scan_vty_init();
7632 bgp_ethernetvpn_init();
7633 bgp_flowspec_vty_init();
7635 /* Access list initialize. */
7637 access_list_add_hook(peer_distribute_update
);
7638 access_list_delete_hook(peer_distribute_update
);
7640 /* Filter list initialize. */
7642 as_list_add_hook(peer_aslist_add
);
7643 as_list_delete_hook(peer_aslist_del
);
7645 /* Prefix list initialize.*/
7647 prefix_list_add_hook(peer_prefix_list_update
);
7648 prefix_list_delete_hook(peer_prefix_list_update
);
7650 /* Community list initialize. */
7651 bgp_clist
= community_list_init();
7656 cmd_variable_handler_register(bgp_viewvrf_var_handlers
);
7659 void bgp_terminate(void)
7663 struct listnode
*node
, *nnode
;
7664 struct listnode
*mnode
, *mnnode
;
7668 /* Close the listener sockets first as this prevents peers from
7670 * to reconnect on receiving the peer unconfig message. In the presence
7671 * of a large number of peers this will ensure that no peer is left with
7672 * a dangling connection
7674 /* reverse bgp_master_init */
7677 if (bm
->listen_sockets
)
7678 list_delete_and_null(&bm
->listen_sockets
);
7680 for (ALL_LIST_ELEMENTS(bm
->bgp
, mnode
, mnnode
, bgp
))
7681 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
))
7682 if (peer
->status
== Established
7683 || peer
->status
== OpenSent
7684 || peer
->status
== OpenConfirm
)
7685 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
7686 BGP_NOTIFY_CEASE_PEER_UNCONFIG
);
7688 if (bm
->process_main_queue
)
7689 work_queue_free_and_null(&bm
->process_main_queue
);
7691 if (bm
->t_rmap_update
)
7692 BGP_TIMER_OFF(bm
->t_rmap_update
);