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"
49 #include "bgpd/bgpd.h"
50 #include "bgpd/bgp_table.h"
51 #include "bgpd/bgp_aspath.h"
52 #include "bgpd/bgp_route.h"
53 #include "bgpd/bgp_dump.h"
54 #include "bgpd/bgp_debug.h"
55 #include "bgpd/bgp_errors.h"
56 #include "bgpd/bgp_community.h"
57 #include "bgpd/bgp_attr.h"
58 #include "bgpd/bgp_regex.h"
59 #include "bgpd/bgp_clist.h"
60 #include "bgpd/bgp_fsm.h"
61 #include "bgpd/bgp_packet.h"
62 #include "bgpd/bgp_zebra.h"
63 #include "bgpd/bgp_open.h"
64 #include "bgpd/bgp_filter.h"
65 #include "bgpd/bgp_nexthop.h"
66 #include "bgpd/bgp_damp.h"
67 #include "bgpd/bgp_mplsvpn.h"
69 #include "bgpd/rfapi/bgp_rfapi_cfg.h"
70 #include "bgpd/rfapi/rfapi_backend.h"
72 #include "bgpd/bgp_evpn.h"
73 #include "bgpd/bgp_advertise.h"
74 #include "bgpd/bgp_network.h"
75 #include "bgpd/bgp_vty.h"
76 #include "bgpd/bgp_mpath.h"
77 #include "bgpd/bgp_nht.h"
78 #include "bgpd/bgp_updgrp.h"
79 #include "bgpd/bgp_bfd.h"
80 #include "bgpd/bgp_memory.h"
81 #include "bgpd/bgp_evpn_vty.h"
82 #include "bgpd/bgp_keepalives.h"
83 #include "bgpd/bgp_io.h"
84 #include "bgpd/bgp_ecommunity.h"
85 #include "bgpd/bgp_flowspec.h"
86 #include "bgpd/bgp_labelpool.h"
87 #include "bgpd/bgp_pbr.h"
89 DEFINE_MTYPE_STATIC(BGPD
, PEER_TX_SHUTDOWN_MSG
, "Peer shutdown message (TX)");
90 DEFINE_QOBJ_TYPE(bgp_master
)
92 DEFINE_QOBJ_TYPE(peer
)
94 /* BGP process wide configuration. */
95 static struct bgp_master bgp_master
;
97 /* BGP process wide configuration pointer to export. */
98 struct bgp_master
*bm
;
100 /* BGP community-list. */
101 struct community_list_handler
*bgp_clist
;
103 unsigned int multipath_num
= MULTIPATH_NUM
;
105 static void bgp_if_finish(struct bgp
*bgp
);
106 static void peer_drop_dynamic_neighbor(struct peer
*peer
);
108 extern struct zclient
*zclient
;
110 /* handle main socket creation or deletion */
111 static int bgp_check_main_socket(bool create
, struct bgp
*bgp
)
113 static int bgp_server_main_created
;
115 if (create
== true) {
116 if (bgp_server_main_created
)
118 if (bgp_socket(bgp
, bm
->port
, bm
->address
) < 0)
119 return BGP_ERR_INVALID_VALUE
;
120 bgp_server_main_created
= 1;
123 if (!bgp_server_main_created
)
126 bgp_server_main_created
= 0;
130 void bgp_session_reset(struct peer
*peer
)
132 if (peer
->doppelganger
&& (peer
->doppelganger
->status
!= Deleted
)
133 && !(CHECK_FLAG(peer
->doppelganger
->flags
, PEER_FLAG_CONFIG_NODE
)))
134 peer_delete(peer
->doppelganger
);
136 BGP_EVENT_ADD(peer
, BGP_Stop
);
140 * During session reset, we may delete the doppelganger peer, which would
141 * be the next node to the current node. If the session reset was invoked
142 * during walk of peer list, we would end up accessing the freed next
143 * node. This function moves the next node along.
145 static void bgp_session_reset_safe(struct peer
*peer
, struct listnode
**nnode
)
150 n
= (nnode
) ? *nnode
: NULL
;
151 npeer
= (n
) ? listgetdata(n
) : NULL
;
153 if (peer
->doppelganger
&& (peer
->doppelganger
->status
!= Deleted
)
154 && !(CHECK_FLAG(peer
->doppelganger
->flags
,
155 PEER_FLAG_CONFIG_NODE
))) {
156 if (peer
->doppelganger
== npeer
)
157 /* nnode and *nnode are confirmed to be non-NULL here */
158 *nnode
= (*nnode
)->next
;
159 peer_delete(peer
->doppelganger
);
162 BGP_EVENT_ADD(peer
, BGP_Stop
);
165 /* BGP global flag manipulation. */
166 int bgp_option_set(int flag
)
170 case BGP_OPT_MULTIPLE_INSTANCE
:
171 case BGP_OPT_CONFIG_CISCO
:
172 case BGP_OPT_NO_LISTEN
:
173 SET_FLAG(bm
->options
, flag
);
176 return BGP_ERR_INVALID_FLAG
;
181 int bgp_option_unset(int flag
)
184 case BGP_OPT_MULTIPLE_INSTANCE
:
185 if (listcount(bm
->bgp
) > 1)
186 return BGP_ERR_MULTIPLE_INSTANCE_USED
;
189 case BGP_OPT_CONFIG_CISCO
:
190 UNSET_FLAG(bm
->options
, flag
);
193 return BGP_ERR_INVALID_FLAG
;
198 int bgp_option_check(int flag
)
200 return CHECK_FLAG(bm
->options
, flag
);
203 /* BGP flag manipulation. */
204 int bgp_flag_set(struct bgp
*bgp
, int flag
)
206 SET_FLAG(bgp
->flags
, flag
);
210 int bgp_flag_unset(struct bgp
*bgp
, int flag
)
212 UNSET_FLAG(bgp
->flags
, flag
);
216 int bgp_flag_check(struct bgp
*bgp
, int flag
)
218 return CHECK_FLAG(bgp
->flags
, flag
);
221 /* Internal function to set BGP structure configureation flag. */
222 static void bgp_config_set(struct bgp
*bgp
, int config
)
224 SET_FLAG(bgp
->config
, config
);
227 static void bgp_config_unset(struct bgp
*bgp
, int config
)
229 UNSET_FLAG(bgp
->config
, config
);
232 static int bgp_config_check(struct bgp
*bgp
, int config
)
234 return CHECK_FLAG(bgp
->config
, config
);
237 /* Set BGP router identifier. */
238 static int bgp_router_id_set(struct bgp
*bgp
, const struct in_addr
*id
)
241 struct listnode
*node
, *nnode
;
243 if (IPV4_ADDR_SAME(&bgp
->router_id
, id
))
246 /* EVPN uses router id in RD, withdraw them */
247 if (is_evpn_enabled())
248 bgp_evpn_handle_router_id_update(bgp
, TRUE
);
250 IPV4_ADDR_COPY(&bgp
->router_id
, id
);
252 /* Set all peer's local identifier with this value. */
253 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
254 IPV4_ADDR_COPY(&peer
->local_id
, id
);
256 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
)) {
257 peer
->last_reset
= PEER_DOWN_RID_CHANGE
;
258 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
259 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
263 /* EVPN uses router id in RD, update them */
264 if (is_evpn_enabled())
265 bgp_evpn_handle_router_id_update(bgp
, FALSE
);
270 void bgp_router_id_zebra_bump(vrf_id_t vrf_id
, const struct prefix
*router_id
)
272 struct listnode
*node
, *nnode
;
275 if (vrf_id
== VRF_DEFAULT
) {
276 /* Router-id change for default VRF has to also update all
278 for (ALL_LIST_ELEMENTS(bm
->bgp
, node
, nnode
, bgp
)) {
279 if (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
)
282 bgp
->router_id_zebra
= router_id
->u
.prefix4
;
283 if (!bgp
->router_id_static
.s_addr
)
284 bgp_router_id_set(bgp
, &router_id
->u
.prefix4
);
287 bgp
= bgp_lookup_by_vrf_id(vrf_id
);
289 bgp
->router_id_zebra
= router_id
->u
.prefix4
;
291 if (!bgp
->router_id_static
.s_addr
)
292 bgp_router_id_set(bgp
, &router_id
->u
.prefix4
);
297 int bgp_router_id_static_set(struct bgp
*bgp
, struct in_addr id
)
299 bgp
->router_id_static
= id
;
300 bgp_router_id_set(bgp
, id
.s_addr
? &id
: &bgp
->router_id_zebra
);
304 /* BGP's cluster-id control. */
305 int bgp_cluster_id_set(struct bgp
*bgp
, struct in_addr
*cluster_id
)
308 struct listnode
*node
, *nnode
;
310 if (bgp_config_check(bgp
, BGP_CONFIG_CLUSTER_ID
)
311 && IPV4_ADDR_SAME(&bgp
->cluster_id
, cluster_id
))
314 IPV4_ADDR_COPY(&bgp
->cluster_id
, cluster_id
);
315 bgp_config_set(bgp
, BGP_CONFIG_CLUSTER_ID
);
317 /* Clear all IBGP peer. */
318 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
319 if (peer
->sort
!= BGP_PEER_IBGP
)
322 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
)) {
323 peer
->last_reset
= PEER_DOWN_CLID_CHANGE
;
324 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
325 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
331 int bgp_cluster_id_unset(struct bgp
*bgp
)
334 struct listnode
*node
, *nnode
;
336 if (!bgp_config_check(bgp
, BGP_CONFIG_CLUSTER_ID
))
339 bgp
->cluster_id
.s_addr
= 0;
340 bgp_config_unset(bgp
, BGP_CONFIG_CLUSTER_ID
);
342 /* Clear all IBGP peer. */
343 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
344 if (peer
->sort
!= BGP_PEER_IBGP
)
347 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
)) {
348 peer
->last_reset
= PEER_DOWN_CLID_CHANGE
;
349 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
350 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
356 /* time_t value that is monotonicly increasing
357 * and uneffected by adjustments to system clock
359 time_t bgp_clock(void)
367 /* BGP timer configuration. */
368 int bgp_timers_set(struct bgp
*bgp
, uint32_t keepalive
, uint32_t holdtime
)
370 bgp
->default_keepalive
=
371 (keepalive
< holdtime
/ 3 ? keepalive
: holdtime
/ 3);
372 bgp
->default_holdtime
= holdtime
;
377 int bgp_timers_unset(struct bgp
*bgp
)
379 bgp
->default_keepalive
= BGP_DEFAULT_KEEPALIVE
;
380 bgp
->default_holdtime
= BGP_DEFAULT_HOLDTIME
;
385 /* BGP confederation configuration. */
386 int bgp_confederation_id_set(struct bgp
*bgp
, as_t as
)
389 struct listnode
*node
, *nnode
;
393 return BGP_ERR_INVALID_AS
;
395 /* Remember - were we doing confederation before? */
396 already_confed
= bgp_config_check(bgp
, BGP_CONFIG_CONFEDERATION
);
398 bgp_config_set(bgp
, BGP_CONFIG_CONFEDERATION
);
400 /* If we were doing confederation already, this is just an external
401 AS change. Just Reset EBGP sessions, not CONFED sessions. If we
402 were not doing confederation before, reset all EBGP sessions. */
403 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
404 /* We're looking for peers who's AS is not local or part of our
406 if (already_confed
) {
407 if (peer_sort(peer
) == BGP_PEER_EBGP
) {
409 if (BGP_IS_VALID_STATE_FOR_NOTIF(
412 PEER_DOWN_CONFED_ID_CHANGE
;
414 peer
, BGP_NOTIFY_CEASE
,
415 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
417 bgp_session_reset_safe(peer
, &nnode
);
420 /* Not doign confederation before, so reset every
423 if (peer_sort(peer
) != BGP_PEER_IBGP
) {
424 /* Reset the local_as to be our EBGP one */
425 if (peer_sort(peer
) == BGP_PEER_EBGP
)
427 if (BGP_IS_VALID_STATE_FOR_NOTIF(
430 PEER_DOWN_CONFED_ID_CHANGE
;
432 peer
, BGP_NOTIFY_CEASE
,
433 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
435 bgp_session_reset_safe(peer
, &nnode
);
442 int bgp_confederation_id_unset(struct bgp
*bgp
)
445 struct listnode
*node
, *nnode
;
448 bgp_config_unset(bgp
, BGP_CONFIG_CONFEDERATION
);
450 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
451 /* We're looking for peers who's AS is not local */
452 if (peer_sort(peer
) != BGP_PEER_IBGP
) {
453 peer
->local_as
= bgp
->as
;
454 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
)) {
455 peer
->last_reset
= PEER_DOWN_CONFED_ID_CHANGE
;
456 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
457 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
461 bgp_session_reset_safe(peer
, &nnode
);
467 /* Is an AS part of the confed or not? */
468 int bgp_confederation_peers_check(struct bgp
*bgp
, as_t as
)
475 for (i
= 0; i
< bgp
->confed_peers_cnt
; i
++)
476 if (bgp
->confed_peers
[i
] == as
)
482 /* Add an AS to the confederation set. */
483 int bgp_confederation_peers_add(struct bgp
*bgp
, as_t as
)
486 struct listnode
*node
, *nnode
;
489 return BGP_ERR_INVALID_BGP
;
492 return BGP_ERR_INVALID_AS
;
494 if (bgp_confederation_peers_check(bgp
, as
))
497 if (bgp
->confed_peers
)
499 XREALLOC(MTYPE_BGP_CONFED_LIST
, bgp
->confed_peers
,
500 (bgp
->confed_peers_cnt
+ 1) * sizeof(as_t
));
503 XMALLOC(MTYPE_BGP_CONFED_LIST
,
504 (bgp
->confed_peers_cnt
+ 1) * sizeof(as_t
));
506 bgp
->confed_peers
[bgp
->confed_peers_cnt
] = as
;
507 bgp
->confed_peers_cnt
++;
509 if (bgp_config_check(bgp
, BGP_CONFIG_CONFEDERATION
)) {
510 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
511 if (peer
->as
== as
) {
512 peer
->local_as
= bgp
->as
;
513 if (BGP_IS_VALID_STATE_FOR_NOTIF(
516 PEER_DOWN_CONFED_PEER_CHANGE
;
518 peer
, BGP_NOTIFY_CEASE
,
519 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
521 bgp_session_reset_safe(peer
, &nnode
);
528 /* Delete an AS from the confederation set. */
529 int bgp_confederation_peers_remove(struct bgp
*bgp
, as_t as
)
534 struct listnode
*node
, *nnode
;
539 if (!bgp_confederation_peers_check(bgp
, as
))
542 for (i
= 0; i
< bgp
->confed_peers_cnt
; i
++)
543 if (bgp
->confed_peers
[i
] == as
)
544 for (j
= i
+ 1; j
< bgp
->confed_peers_cnt
; j
++)
545 bgp
->confed_peers
[j
- 1] = bgp
->confed_peers
[j
];
547 bgp
->confed_peers_cnt
--;
549 if (bgp
->confed_peers_cnt
== 0) {
550 if (bgp
->confed_peers
)
551 XFREE(MTYPE_BGP_CONFED_LIST
, bgp
->confed_peers
);
552 bgp
->confed_peers
= NULL
;
555 XREALLOC(MTYPE_BGP_CONFED_LIST
, bgp
->confed_peers
,
556 bgp
->confed_peers_cnt
* sizeof(as_t
));
558 /* Now reset any peer who's remote AS has just been removed from the
560 if (bgp_config_check(bgp
, BGP_CONFIG_CONFEDERATION
)) {
561 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
562 if (peer
->as
== as
) {
563 peer
->local_as
= bgp
->confed_id
;
564 if (BGP_IS_VALID_STATE_FOR_NOTIF(
567 PEER_DOWN_CONFED_PEER_CHANGE
;
569 peer
, BGP_NOTIFY_CEASE
,
570 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
572 bgp_session_reset_safe(peer
, &nnode
);
580 /* Local preference configuration. */
581 int bgp_default_local_preference_set(struct bgp
*bgp
, uint32_t local_pref
)
586 bgp
->default_local_pref
= local_pref
;
591 int bgp_default_local_preference_unset(struct bgp
*bgp
)
596 bgp
->default_local_pref
= BGP_DEFAULT_LOCAL_PREF
;
601 /* Local preference configuration. */
602 int bgp_default_subgroup_pkt_queue_max_set(struct bgp
*bgp
, uint32_t queue_size
)
607 bgp
->default_subgroup_pkt_queue_max
= queue_size
;
612 int bgp_default_subgroup_pkt_queue_max_unset(struct bgp
*bgp
)
616 bgp
->default_subgroup_pkt_queue_max
=
617 BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX
;
622 /* Listen limit configuration. */
623 int bgp_listen_limit_set(struct bgp
*bgp
, int listen_limit
)
628 bgp
->dynamic_neighbors_limit
= listen_limit
;
633 int bgp_listen_limit_unset(struct bgp
*bgp
)
638 bgp
->dynamic_neighbors_limit
= BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT
;
643 int bgp_map_afi_safi_iana2int(iana_afi_t pkt_afi
, iana_safi_t pkt_safi
,
644 afi_t
*afi
, safi_t
*safi
)
646 /* Map from IANA values to internal values, return error if
647 * values are unrecognized.
649 *afi
= afi_iana2int(pkt_afi
);
650 *safi
= safi_iana2int(pkt_safi
);
651 if (*afi
== AFI_MAX
|| *safi
== SAFI_MAX
)
657 int bgp_map_afi_safi_int2iana(afi_t afi
, safi_t safi
, iana_afi_t
*pkt_afi
,
658 iana_safi_t
*pkt_safi
)
660 /* Map from internal values to IANA values, return error if
661 * internal values are bad (unexpected).
663 if (afi
== AFI_MAX
|| safi
== SAFI_MAX
)
665 *pkt_afi
= afi_int2iana(afi
);
666 *pkt_safi
= safi_int2iana(safi
);
670 struct peer_af
*peer_af_create(struct peer
*peer
, afi_t afi
, safi_t safi
)
678 afid
= afindex(afi
, safi
);
679 if (afid
>= BGP_AF_MAX
)
682 assert(peer
->peer_af_array
[afid
] == NULL
);
684 /* Allocate new peer af */
685 af
= XCALLOC(MTYPE_BGP_PEER_AF
, sizeof(struct peer_af
));
687 peer
->peer_af_array
[afid
] = af
;
696 struct peer_af
*peer_af_find(struct peer
*peer
, afi_t afi
, safi_t safi
)
703 afid
= afindex(afi
, safi
);
704 if (afid
>= BGP_AF_MAX
)
707 return peer
->peer_af_array
[afid
];
710 int peer_af_delete(struct peer
*peer
, afi_t afi
, safi_t safi
)
718 afid
= afindex(afi
, safi
);
719 if (afid
>= BGP_AF_MAX
)
722 af
= peer
->peer_af_array
[afid
];
726 bgp_stop_announce_route_timer(af
);
728 if (PAF_SUBGRP(af
)) {
729 if (BGP_DEBUG(update_groups
, UPDATE_GROUPS
))
730 zlog_debug("u%" PRIu64
":s%" PRIu64
" remove peer %s",
731 af
->subgroup
->update_group
->id
,
732 af
->subgroup
->id
, peer
->host
);
735 update_subgroup_remove_peer(af
->subgroup
, af
);
737 peer
->peer_af_array
[afid
] = NULL
;
738 XFREE(MTYPE_BGP_PEER_AF
, af
);
742 /* Peer comparison function for sorting. */
743 int peer_cmp(struct peer
*p1
, struct peer
*p2
)
745 if (p1
->group
&& !p2
->group
)
748 if (!p1
->group
&& p2
->group
)
751 if (p1
->group
== p2
->group
) {
752 if (p1
->conf_if
&& !p2
->conf_if
)
755 if (!p1
->conf_if
&& p2
->conf_if
)
758 if (p1
->conf_if
&& p2
->conf_if
)
759 return if_cmp_name_func(p1
->conf_if
, p2
->conf_if
);
761 return strcmp(p1
->group
->name
, p2
->group
->name
);
763 return sockunion_cmp(&p1
->su
, &p2
->su
);
766 static unsigned int peer_hash_key_make(void *p
)
768 struct peer
*peer
= p
;
769 return sockunion_hash(&peer
->su
);
772 static int peer_hash_same(const void *p1
, const void *p2
)
774 const struct peer
*peer1
= p1
;
775 const struct peer
*peer2
= p2
;
776 return (sockunion_same(&peer1
->su
, &peer2
->su
)
777 && CHECK_FLAG(peer1
->flags
, PEER_FLAG_CONFIG_NODE
)
778 == CHECK_FLAG(peer2
->flags
, PEER_FLAG_CONFIG_NODE
));
781 void peer_flag_inherit(struct peer
*peer
, uint32_t flag
)
785 /* Skip if peer is not a peer-group member. */
786 if (!peer_group_active(peer
))
789 /* Unset override flag to signal inheritance from peer-group. */
790 UNSET_FLAG(peer
->flags_override
, flag
);
793 * Inherit flag state from peer-group. If the flag of the peer-group is
794 * not being inverted, the peer must inherit the inverse of the current
795 * peer-group flag state.
797 group_val
= CHECK_FLAG(peer
->group
->conf
->flags
, flag
);
798 if (!CHECK_FLAG(peer
->group
->conf
->flags_invert
, flag
)
799 && CHECK_FLAG(peer
->flags_invert
, flag
))
800 COND_FLAG(peer
->flags
, flag
, !group_val
);
802 COND_FLAG(peer
->flags
, flag
, group_val
);
805 int peer_af_flag_check(struct peer
*peer
, afi_t afi
, safi_t safi
, uint32_t flag
)
807 return CHECK_FLAG(peer
->af_flags
[afi
][safi
], flag
);
810 void peer_af_flag_inherit(struct peer
*peer
, afi_t afi
, safi_t safi
,
815 /* Skip if peer is not a peer-group member. */
816 if (!peer_group_active(peer
))
819 /* Unset override flag to signal inheritance from peer-group. */
820 UNSET_FLAG(peer
->af_flags_override
[afi
][safi
], flag
);
823 * Inherit flag state from peer-group. If the flag of the peer-group is
824 * not being inverted, the peer must inherit the inverse of the current
825 * peer-group flag state.
827 group_val
= CHECK_FLAG(peer
->group
->conf
->af_flags
[afi
][safi
], flag
);
828 if (!CHECK_FLAG(peer
->group
->conf
->af_flags_invert
[afi
][safi
], flag
)
829 && CHECK_FLAG(peer
->af_flags_invert
[afi
][safi
], flag
))
830 COND_FLAG(peer
->af_flags
[afi
][safi
], flag
, !group_val
);
832 COND_FLAG(peer
->af_flags
[afi
][safi
], flag
, group_val
);
835 static bool peergroup_flag_check(struct peer
*peer
, uint32_t flag
)
837 if (!peer_group_active(peer
)) {
838 if (CHECK_FLAG(peer
->flags_invert
, flag
))
839 return !CHECK_FLAG(peer
->flags
, flag
);
841 return !!CHECK_FLAG(peer
->flags
, flag
);
844 return !!CHECK_FLAG(peer
->flags_override
, flag
);
847 static bool peergroup_af_flag_check(struct peer
*peer
, afi_t afi
, safi_t safi
,
850 if (!peer_group_active(peer
)) {
851 if (CHECK_FLAG(peer
->af_flags_invert
[afi
][safi
], flag
))
852 return !peer_af_flag_check(peer
, afi
, safi
, flag
);
854 return !!peer_af_flag_check(peer
, afi
, safi
, flag
);
857 return !!CHECK_FLAG(peer
->af_flags_override
[afi
][safi
], flag
);
860 static bool peergroup_filter_check(struct peer
*peer
, afi_t afi
, safi_t safi
,
861 uint8_t type
, int direct
)
863 struct bgp_filter
*filter
;
865 if (peer_group_active(peer
))
866 return !!CHECK_FLAG(peer
->filter_override
[afi
][safi
][direct
],
869 filter
= &peer
->filter
[afi
][safi
];
871 case PEER_FT_DISTRIBUTE_LIST
:
872 return !!(filter
->dlist
[direct
].name
);
873 case PEER_FT_FILTER_LIST
:
874 return !!(filter
->aslist
[direct
].name
);
875 case PEER_FT_PREFIX_LIST
:
876 return !!(filter
->plist
[direct
].name
);
877 case PEER_FT_ROUTE_MAP
:
878 return !!(filter
->map
[direct
].name
);
879 case PEER_FT_UNSUPPRESS_MAP
:
880 return !!(filter
->usmap
.name
);
886 /* Check peer's AS number and determines if this peer is IBGP or EBGP */
887 static inline bgp_peer_sort_t
peer_calc_sort(struct peer
*peer
)
894 if (CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
895 if (peer
->as_type
== AS_INTERNAL
)
896 return BGP_PEER_IBGP
;
898 else if (peer
->as_type
== AS_EXTERNAL
)
899 return BGP_PEER_EBGP
;
901 else if (peer
->as_type
== AS_SPECIFIED
&& peer
->as
) {
903 return (bgp
->as
== peer
->as
? BGP_PEER_IBGP
911 peer1
= listnode_head(peer
->group
->peer
);
916 return BGP_PEER_INTERNAL
;
920 if (bgp
&& CHECK_FLAG(bgp
->config
, BGP_CONFIG_CONFEDERATION
)) {
921 if (peer
->local_as
== 0)
922 return BGP_PEER_INTERNAL
;
924 if (peer
->local_as
== peer
->as
) {
925 if (bgp
->as
== bgp
->confed_id
) {
926 if (peer
->local_as
== bgp
->as
)
927 return BGP_PEER_IBGP
;
929 return BGP_PEER_EBGP
;
931 if (peer
->local_as
== bgp
->confed_id
)
932 return BGP_PEER_EBGP
;
934 return BGP_PEER_IBGP
;
938 if (bgp_confederation_peers_check(bgp
, peer
->as
))
939 return BGP_PEER_CONFED
;
941 return BGP_PEER_EBGP
;
943 if (peer
->as_type
!= AS_SPECIFIED
)
944 return (peer
->as_type
== AS_INTERNAL
? BGP_PEER_IBGP
947 return (peer
->local_as
== 0
949 : peer
->local_as
== peer
->as
? BGP_PEER_IBGP
954 /* Calculate and cache the peer "sort" */
955 bgp_peer_sort_t
peer_sort(struct peer
*peer
)
957 peer
->sort
= peer_calc_sort(peer
);
961 static void peer_free(struct peer
*peer
)
963 assert(peer
->status
== Deleted
);
967 /* this /ought/ to have been done already through bgp_stop earlier,
968 * but just to be sure..
972 bgp_writes_off(peer
);
973 assert(!peer
->t_write
);
974 assert(!peer
->t_read
);
975 BGP_EVENT_FLUSH(peer
);
977 pthread_mutex_destroy(&peer
->io_mtx
);
979 /* Free connected nexthop, if present */
980 if (CHECK_FLAG(peer
->flags
, PEER_FLAG_CONFIG_NODE
)
981 && !peer_dynamic_neighbor(peer
))
982 bgp_delete_connected_nexthop(family2afi(peer
->su
.sa
.sa_family
),
985 XFREE(MTYPE_PEER_TX_SHUTDOWN_MSG
, peer
->tx_shutdown_message
);
988 XFREE(MTYPE_PEER_DESC
, peer
->desc
);
992 /* Free allocated host character. */
994 XFREE(MTYPE_BGP_PEER_HOST
, peer
->host
);
998 if (peer
->domainname
) {
999 XFREE(MTYPE_BGP_PEER_HOST
, peer
->domainname
);
1000 peer
->domainname
= NULL
;
1004 XFREE(MTYPE_BGP_PEER_IFNAME
, peer
->ifname
);
1005 peer
->ifname
= NULL
;
1008 /* Update source configuration. */
1009 if (peer
->update_source
) {
1010 sockunion_free(peer
->update_source
);
1011 peer
->update_source
= NULL
;
1014 if (peer
->update_if
) {
1015 XFREE(MTYPE_PEER_UPDATE_SOURCE
, peer
->update_if
);
1016 peer
->update_if
= NULL
;
1019 if (peer
->notify
.data
)
1020 XFREE(MTYPE_TMP
, peer
->notify
.data
);
1021 memset(&peer
->notify
, 0, sizeof(struct bgp_notify
));
1023 if (peer
->clear_node_queue
)
1024 work_queue_free_and_null(&peer
->clear_node_queue
);
1026 bgp_sync_delete(peer
);
1028 if (peer
->conf_if
) {
1029 XFREE(MTYPE_PEER_CONF_IF
, peer
->conf_if
);
1030 peer
->conf_if
= NULL
;
1033 bfd_info_free(&(peer
->bfd_info
));
1035 bgp_unlock(peer
->bgp
);
1037 memset(peer
, 0, sizeof(struct peer
));
1039 XFREE(MTYPE_BGP_PEER
, peer
);
1042 /* increase reference count on a struct peer */
1043 struct peer
*peer_lock_with_caller(const char *name
, struct peer
*peer
)
1045 assert(peer
&& (peer
->lock
>= 0));
1048 zlog_debug("%s peer_lock %p %d", name
, peer
, peer
->lock
);
1056 /* decrease reference count on a struct peer
1057 * struct peer is freed and NULL returned if last reference
1059 struct peer
*peer_unlock_with_caller(const char *name
, struct peer
*peer
)
1061 assert(peer
&& (peer
->lock
> 0));
1064 zlog_debug("%s peer_unlock %p %d", name
, peer
, peer
->lock
);
1069 if (peer
->lock
== 0) {
1077 /* Allocate new peer object, implicitely locked. */
1078 struct peer
*peer_new(struct bgp
*bgp
)
1085 /* bgp argument is absolutely required */
1090 /* Allocate new peer. */
1091 peer
= XCALLOC(MTYPE_BGP_PEER
, sizeof(struct peer
));
1093 /* Set default value. */
1095 peer
->v_start
= BGP_INIT_START_TIMER
;
1096 peer
->v_connect
= BGP_DEFAULT_CONNECT_RETRY
;
1097 peer
->status
= Idle
;
1098 peer
->ostatus
= Idle
;
1099 peer
->cur_event
= peer
->last_event
= peer
->last_major_event
= 0;
1100 peer
->bgp
= bgp_lock(bgp
);
1101 peer
= peer_lock(peer
); /* initial reference */
1102 peer
->password
= NULL
;
1104 /* Set default flags. */
1105 FOREACH_AFI_SAFI (afi
, safi
) {
1106 if (!bgp_option_check(BGP_OPT_CONFIG_CISCO
)) {
1107 SET_FLAG(peer
->af_flags
[afi
][safi
],
1108 PEER_FLAG_SEND_COMMUNITY
);
1109 SET_FLAG(peer
->af_flags
[afi
][safi
],
1110 PEER_FLAG_SEND_EXT_COMMUNITY
);
1111 SET_FLAG(peer
->af_flags
[afi
][safi
],
1112 PEER_FLAG_SEND_LARGE_COMMUNITY
);
1114 SET_FLAG(peer
->af_flags_invert
[afi
][safi
],
1115 PEER_FLAG_SEND_COMMUNITY
);
1116 SET_FLAG(peer
->af_flags_invert
[afi
][safi
],
1117 PEER_FLAG_SEND_EXT_COMMUNITY
);
1118 SET_FLAG(peer
->af_flags_invert
[afi
][safi
],
1119 PEER_FLAG_SEND_LARGE_COMMUNITY
);
1123 /* set nexthop-unchanged for l2vpn evpn by default */
1124 SET_FLAG(peer
->af_flags
[AFI_L2VPN
][SAFI_EVPN
],
1125 PEER_FLAG_NEXTHOP_UNCHANGED
);
1127 SET_FLAG(peer
->sflags
, PEER_STATUS_CAPABILITY_OPEN
);
1129 /* Create buffers. */
1130 peer
->ibuf
= stream_fifo_new();
1131 peer
->obuf
= stream_fifo_new();
1132 pthread_mutex_init(&peer
->io_mtx
, NULL
);
1134 /* We use a larger buffer for peer->obuf_work in the event that:
1135 * - We RX a BGP_UPDATE where the attributes alone are just
1136 * under BGP_MAX_PACKET_SIZE
1137 * - The user configures an outbound route-map that does many as-path
1138 * prepends or adds many communities. At most they can have
1139 * CMD_ARGC_MAX args in a route-map so there is a finite limit on how
1140 * large they can make the attributes.
1142 * Having a buffer with BGP_MAX_PACKET_SIZE_OVERFLOW allows us to avoid
1143 * bounds checking for every single attribute as we construct an
1147 stream_new(BGP_MAX_PACKET_SIZE
+ BGP_MAX_PACKET_SIZE_OVERFLOW
);
1149 ringbuf_new(BGP_MAX_PACKET_SIZE
* BGP_READ_PACKET_MAX
);
1151 peer
->scratch
= stream_new(BGP_MAX_PACKET_SIZE
);
1153 bgp_sync_init(peer
);
1155 /* Get service port number. */
1156 sp
= getservbyname("bgp", "tcp");
1157 peer
->port
= (sp
== NULL
) ? BGP_PORT_DEFAULT
: ntohs(sp
->s_port
);
1159 QOBJ_REG(peer
, peer
);
1164 * This function is invoked when a duplicate peer structure associated with
1165 * a neighbor is being deleted. If this about-to-be-deleted structure is
1166 * the one with all the config, then we have to copy over the info.
1168 void peer_xfer_config(struct peer
*peer_dst
, struct peer
*peer_src
)
1170 struct peer_af
*paf
;
1178 /* The following function is used by both peer group config copy to
1179 * individual peer and when we transfer config
1181 if (peer_src
->change_local_as
)
1182 peer_dst
->change_local_as
= peer_src
->change_local_as
;
1184 /* peer flags apply */
1185 peer_dst
->flags
= peer_src
->flags
;
1186 peer_dst
->cap
= peer_src
->cap
;
1188 peer_dst
->local_as
= peer_src
->local_as
;
1189 peer_dst
->port
= peer_src
->port
;
1190 (void)peer_sort(peer_dst
);
1191 peer_dst
->rmap_type
= peer_src
->rmap_type
;
1194 peer_dst
->holdtime
= peer_src
->holdtime
;
1195 peer_dst
->keepalive
= peer_src
->keepalive
;
1196 peer_dst
->connect
= peer_src
->connect
;
1197 peer_dst
->v_holdtime
= peer_src
->v_holdtime
;
1198 peer_dst
->v_keepalive
= peer_src
->v_keepalive
;
1199 peer_dst
->routeadv
= peer_src
->routeadv
;
1200 peer_dst
->v_routeadv
= peer_src
->v_routeadv
;
1202 /* password apply */
1203 if (peer_src
->password
&& !peer_dst
->password
)
1204 peer_dst
->password
=
1205 XSTRDUP(MTYPE_PEER_PASSWORD
, peer_src
->password
);
1207 FOREACH_AFI_SAFI (afi
, safi
) {
1208 peer_dst
->afc
[afi
][safi
] = peer_src
->afc
[afi
][safi
];
1209 peer_dst
->af_flags
[afi
][safi
] = peer_src
->af_flags
[afi
][safi
];
1210 peer_dst
->allowas_in
[afi
][safi
] =
1211 peer_src
->allowas_in
[afi
][safi
];
1212 peer_dst
->weight
[afi
][safi
] = peer_src
->weight
[afi
][safi
];
1215 for (afidx
= BGP_AF_START
; afidx
< BGP_AF_MAX
; afidx
++) {
1216 paf
= peer_src
->peer_af_array
[afidx
];
1218 peer_af_create(peer_dst
, paf
->afi
, paf
->safi
);
1221 /* update-source apply */
1222 if (peer_src
->update_source
) {
1223 if (peer_dst
->update_source
)
1224 sockunion_free(peer_dst
->update_source
);
1225 if (peer_dst
->update_if
) {
1226 XFREE(MTYPE_PEER_UPDATE_SOURCE
, peer_dst
->update_if
);
1227 peer_dst
->update_if
= NULL
;
1229 peer_dst
->update_source
=
1230 sockunion_dup(peer_src
->update_source
);
1231 } else if (peer_src
->update_if
) {
1232 if (peer_dst
->update_if
)
1233 XFREE(MTYPE_PEER_UPDATE_SOURCE
, peer_dst
->update_if
);
1234 if (peer_dst
->update_source
) {
1235 sockunion_free(peer_dst
->update_source
);
1236 peer_dst
->update_source
= NULL
;
1238 peer_dst
->update_if
=
1239 XSTRDUP(MTYPE_PEER_UPDATE_SOURCE
, peer_src
->update_if
);
1242 if (peer_src
->ifname
) {
1243 if (peer_dst
->ifname
)
1244 XFREE(MTYPE_BGP_PEER_IFNAME
, peer_dst
->ifname
);
1247 XSTRDUP(MTYPE_BGP_PEER_IFNAME
, peer_src
->ifname
);
1251 static int bgp_peer_conf_if_to_su_update_v4(struct peer
*peer
,
1252 struct interface
*ifp
)
1254 struct connected
*ifc
;
1257 struct listnode
*node
;
1259 /* If our IPv4 address on the interface is /30 or /31, we can derive the
1260 * IPv4 address of the other end.
1262 for (ALL_LIST_ELEMENTS_RO(ifp
->connected
, node
, ifc
)) {
1263 if (ifc
->address
&& (ifc
->address
->family
== AF_INET
)) {
1264 PREFIX_COPY_IPV4(&p
, CONNECTED_PREFIX(ifc
));
1265 if (p
.prefixlen
== 30) {
1266 peer
->su
.sa
.sa_family
= AF_INET
;
1267 addr
= ntohl(p
.u
.prefix4
.s_addr
);
1269 peer
->su
.sin
.sin_addr
.s_addr
=
1271 else if (addr
% 4 == 2)
1272 peer
->su
.sin
.sin_addr
.s_addr
=
1274 #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN
1275 peer
->su
.sin
.sin_len
=
1276 sizeof(struct sockaddr_in
);
1277 #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */
1279 } else if (p
.prefixlen
== 31) {
1280 peer
->su
.sa
.sa_family
= AF_INET
;
1281 addr
= ntohl(p
.u
.prefix4
.s_addr
);
1283 peer
->su
.sin
.sin_addr
.s_addr
=
1286 peer
->su
.sin
.sin_addr
.s_addr
=
1288 #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN
1289 peer
->su
.sin
.sin_len
=
1290 sizeof(struct sockaddr_in
);
1291 #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */
1293 } else if (bgp_debug_neighbor_events(peer
))
1295 "%s: IPv4 interface address is not /30 or /31, v4 session not started",
1303 static int bgp_peer_conf_if_to_su_update_v6(struct peer
*peer
,
1304 struct interface
*ifp
)
1306 struct nbr_connected
*ifc_nbr
;
1308 /* Have we learnt the peer's IPv6 link-local address? */
1309 if (ifp
->nbr_connected
1310 && (ifc_nbr
= listnode_head(ifp
->nbr_connected
))) {
1311 peer
->su
.sa
.sa_family
= AF_INET6
;
1312 memcpy(&peer
->su
.sin6
.sin6_addr
, &ifc_nbr
->address
->u
.prefix
,
1313 sizeof(struct in6_addr
));
1315 peer
->su
.sin6
.sin6_len
= sizeof(struct sockaddr_in6
);
1317 peer
->su
.sin6
.sin6_scope_id
= ifp
->ifindex
;
1325 * Set or reset the peer address socketunion structure based on the
1326 * learnt/derived peer address. If the address has changed, update the
1327 * password on the listen socket, if needed.
1329 void bgp_peer_conf_if_to_su_update(struct peer
*peer
)
1331 struct interface
*ifp
;
1333 int peer_addr_updated
= 0;
1339 * Our peer structure is stored in the bgp->peerhash
1340 * release it before we modify anything.
1342 hash_release(peer
->bgp
->peerhash
, peer
);
1344 prev_family
= peer
->su
.sa
.sa_family
;
1345 if ((ifp
= if_lookup_by_name(peer
->conf_if
, peer
->bgp
->vrf_id
))) {
1347 /* If BGP unnumbered is not "v6only", we first see if we can
1349 * peer's IPv4 address.
1351 if (!CHECK_FLAG(peer
->flags
, PEER_FLAG_IFPEER_V6ONLY
))
1353 bgp_peer_conf_if_to_su_update_v4(peer
, ifp
);
1355 /* If "v6only" or we can't derive peer's IPv4 address, see if
1357 * learnt the peer's IPv6 link-local address. This is from the
1359 * IPv6 address in router advertisement.
1361 if (!peer_addr_updated
)
1363 bgp_peer_conf_if_to_su_update_v6(peer
, ifp
);
1365 /* If we could derive the peer address, we may need to install the
1367 * configured for the peer, if any, on the listen socket. Otherwise,
1369 * that peer's address is not available and uninstall the password, if
1372 if (peer_addr_updated
) {
1373 if (CHECK_FLAG(peer
->flags
, PEER_FLAG_PASSWORD
)
1374 && prev_family
== AF_UNSPEC
)
1377 if (CHECK_FLAG(peer
->flags
, PEER_FLAG_PASSWORD
)
1378 && prev_family
!= AF_UNSPEC
)
1379 bgp_md5_unset(peer
);
1380 peer
->su
.sa
.sa_family
= AF_UNSPEC
;
1381 memset(&peer
->su
.sin6
.sin6_addr
, 0, sizeof(struct in6_addr
));
1385 * Since our su changed we need to del/add peer to the peerhash
1387 hash_get(peer
->bgp
->peerhash
, peer
, hash_alloc_intern
);
1390 static void bgp_recalculate_afi_safi_bestpaths(struct bgp
*bgp
, afi_t afi
,
1393 struct bgp_node
*rn
, *nrn
;
1395 for (rn
= bgp_table_top(bgp
->rib
[afi
][safi
]); rn
;
1396 rn
= bgp_route_next(rn
)) {
1397 if (rn
->info
!= NULL
) {
1398 /* Special handling for 2-level routing
1400 if (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
1401 || safi
== SAFI_EVPN
) {
1402 for (nrn
= bgp_table_top(
1403 (struct bgp_table
*)(rn
->info
));
1404 nrn
; nrn
= bgp_route_next(nrn
))
1405 bgp_process(bgp
, nrn
, afi
, safi
);
1407 bgp_process(bgp
, rn
, afi
, safi
);
1412 /* Force a bestpath recalculation for all prefixes. This is used
1413 * when 'bgp bestpath' commands are entered.
1415 void bgp_recalculate_all_bestpaths(struct bgp
*bgp
)
1420 FOREACH_AFI_SAFI (afi
, safi
) {
1421 bgp_recalculate_afi_safi_bestpaths(bgp
, afi
, safi
);
1425 /* Create new BGP peer. */
1426 struct peer
*peer_create(union sockunion
*su
, const char *conf_if
,
1427 struct bgp
*bgp
, as_t local_as
, as_t remote_as
,
1428 int as_type
, afi_t afi
, safi_t safi
,
1429 struct peer_group
*group
)
1433 char buf
[SU_ADDRSTRLEN
];
1435 peer
= peer_new(bgp
);
1437 peer
->conf_if
= XSTRDUP(MTYPE_PEER_CONF_IF
, conf_if
);
1438 bgp_peer_conf_if_to_su_update(peer
);
1440 XFREE(MTYPE_BGP_PEER_HOST
, peer
->host
);
1441 peer
->host
= XSTRDUP(MTYPE_BGP_PEER_HOST
, conf_if
);
1444 sockunion2str(su
, buf
, SU_ADDRSTRLEN
);
1446 XFREE(MTYPE_BGP_PEER_HOST
, peer
->host
);
1447 peer
->host
= XSTRDUP(MTYPE_BGP_PEER_HOST
, buf
);
1449 peer
->local_as
= local_as
;
1450 peer
->as
= remote_as
;
1451 peer
->as_type
= as_type
;
1452 peer
->local_id
= bgp
->router_id
;
1453 peer
->v_holdtime
= bgp
->default_holdtime
;
1454 peer
->v_keepalive
= bgp
->default_keepalive
;
1455 peer
->v_routeadv
= (peer_sort(peer
) == BGP_PEER_IBGP
)
1456 ? BGP_DEFAULT_IBGP_ROUTEADV
1457 : BGP_DEFAULT_EBGP_ROUTEADV
;
1459 peer
= peer_lock(peer
); /* bgp peer list reference */
1460 peer
->group
= group
;
1461 listnode_add_sort(bgp
->peer
, peer
);
1462 hash_get(bgp
->peerhash
, peer
, hash_alloc_intern
);
1464 /* Adjust update-group coalesce timer heuristics for # peers. */
1465 if (bgp
->heuristic_coalesce
) {
1466 long ct
= BGP_DEFAULT_SUBGROUP_COALESCE_TIME
1468 * BGP_PEER_ADJUST_SUBGROUP_COALESCE_TIME
);
1469 bgp
->coalesce_time
= MIN(BGP_MAX_SUBGROUP_COALESCE_TIME
, ct
);
1472 active
= peer_active(peer
);
1474 /* Last read and reset time set */
1475 peer
->readtime
= peer
->resettime
= bgp_clock();
1477 /* Default TTL set. */
1478 peer
->ttl
= (peer
->sort
== BGP_PEER_IBGP
) ? MAXTTL
: 1;
1480 SET_FLAG(peer
->flags
, PEER_FLAG_CONFIG_NODE
);
1483 peer
->afc
[afi
][safi
] = 1;
1484 peer_af_create(peer
, afi
, safi
);
1487 /* auto shutdown if configured */
1488 if (bgp
->autoshutdown
)
1489 peer_flag_set(peer
, PEER_FLAG_SHUTDOWN
);
1490 /* Set up peer's events and timers. */
1491 else if (!active
&& peer_active(peer
))
1492 bgp_timer_set(peer
);
1497 /* Make accept BGP peer. This function is only called from the test code */
1498 struct peer
*peer_create_accept(struct bgp
*bgp
)
1502 peer
= peer_new(bgp
);
1504 peer
= peer_lock(peer
); /* bgp peer list reference */
1505 listnode_add_sort(bgp
->peer
, peer
);
1511 * Return true if we have a peer configured to use this afi/safi
1513 int bgp_afi_safi_peer_exists(struct bgp
*bgp
, afi_t afi
, safi_t safi
)
1515 struct listnode
*node
;
1518 for (ALL_LIST_ELEMENTS_RO(bgp
->peer
, node
, peer
)) {
1519 if (!CHECK_FLAG(peer
->flags
, PEER_FLAG_CONFIG_NODE
))
1522 if (peer
->afc
[afi
][safi
])
1529 /* Change peer's AS number. */
1530 void peer_as_change(struct peer
*peer
, as_t as
, int as_specified
)
1532 bgp_peer_sort_t type
;
1535 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
1536 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
)) {
1537 peer
->last_reset
= PEER_DOWN_REMOTE_AS_CHANGE
;
1538 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
1539 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
1541 bgp_session_reset(peer
);
1543 type
= peer_sort(peer
);
1545 peer
->as_type
= as_specified
;
1547 if (bgp_config_check(peer
->bgp
, BGP_CONFIG_CONFEDERATION
)
1548 && !bgp_confederation_peers_check(peer
->bgp
, as
)
1549 && peer
->bgp
->as
!= as
)
1550 peer
->local_as
= peer
->bgp
->confed_id
;
1552 peer
->local_as
= peer
->bgp
->as
;
1554 /* Advertisement-interval reset */
1555 if (!CHECK_FLAG(peer
->flags
, PEER_FLAG_ROUTEADV
)) {
1556 peer
->v_routeadv
= (peer_sort(peer
) == BGP_PEER_IBGP
)
1557 ? BGP_DEFAULT_IBGP_ROUTEADV
1558 : BGP_DEFAULT_EBGP_ROUTEADV
;
1562 if (peer_sort(peer
) == BGP_PEER_IBGP
)
1564 else if (type
== BGP_PEER_IBGP
)
1567 /* reflector-client reset */
1568 if (peer_sort(peer
) != BGP_PEER_IBGP
) {
1569 UNSET_FLAG(peer
->af_flags
[AFI_IP
][SAFI_UNICAST
],
1570 PEER_FLAG_REFLECTOR_CLIENT
);
1571 UNSET_FLAG(peer
->af_flags
[AFI_IP
][SAFI_MULTICAST
],
1572 PEER_FLAG_REFLECTOR_CLIENT
);
1573 UNSET_FLAG(peer
->af_flags
[AFI_IP
][SAFI_LABELED_UNICAST
],
1574 PEER_FLAG_REFLECTOR_CLIENT
);
1575 UNSET_FLAG(peer
->af_flags
[AFI_IP
][SAFI_MPLS_VPN
],
1576 PEER_FLAG_REFLECTOR_CLIENT
);
1577 UNSET_FLAG(peer
->af_flags
[AFI_IP
][SAFI_ENCAP
],
1578 PEER_FLAG_REFLECTOR_CLIENT
);
1579 UNSET_FLAG(peer
->af_flags
[AFI_IP
][SAFI_FLOWSPEC
],
1580 PEER_FLAG_REFLECTOR_CLIENT
);
1581 UNSET_FLAG(peer
->af_flags
[AFI_IP6
][SAFI_UNICAST
],
1582 PEER_FLAG_REFLECTOR_CLIENT
);
1583 UNSET_FLAG(peer
->af_flags
[AFI_IP6
][SAFI_MULTICAST
],
1584 PEER_FLAG_REFLECTOR_CLIENT
);
1585 UNSET_FLAG(peer
->af_flags
[AFI_IP6
][SAFI_LABELED_UNICAST
],
1586 PEER_FLAG_REFLECTOR_CLIENT
);
1587 UNSET_FLAG(peer
->af_flags
[AFI_IP6
][SAFI_MPLS_VPN
],
1588 PEER_FLAG_REFLECTOR_CLIENT
);
1589 UNSET_FLAG(peer
->af_flags
[AFI_IP6
][SAFI_ENCAP
],
1590 PEER_FLAG_REFLECTOR_CLIENT
);
1591 UNSET_FLAG(peer
->af_flags
[AFI_IP6
][SAFI_FLOWSPEC
],
1592 PEER_FLAG_REFLECTOR_CLIENT
);
1593 UNSET_FLAG(peer
->af_flags
[AFI_L2VPN
][SAFI_EVPN
],
1594 PEER_FLAG_REFLECTOR_CLIENT
);
1597 /* local-as reset */
1598 if (peer_sort(peer
) != BGP_PEER_EBGP
) {
1599 peer
->change_local_as
= 0;
1600 peer_flag_unset(peer
, PEER_FLAG_LOCAL_AS
);
1601 peer_flag_unset(peer
, PEER_FLAG_LOCAL_AS_NO_PREPEND
);
1602 peer_flag_unset(peer
, PEER_FLAG_LOCAL_AS_REPLACE_AS
);
1606 /* If peer does not exist, create new one. If peer already exists,
1607 set AS number to the peer. */
1608 int peer_remote_as(struct bgp
*bgp
, union sockunion
*su
, const char *conf_if
,
1609 as_t
*as
, int as_type
, afi_t afi
, safi_t safi
)
1615 peer
= peer_lookup_by_conf_if(bgp
, conf_if
);
1617 peer
= peer_lookup(bgp
, su
);
1620 /* Not allowed for a dynamic peer. */
1621 if (peer_dynamic_neighbor(peer
)) {
1623 return BGP_ERR_INVALID_FOR_DYNAMIC_PEER
;
1626 /* When this peer is a member of peer-group. */
1628 if (peer
->group
->conf
->as
) {
1629 /* Return peer group's AS number. */
1630 *as
= peer
->group
->conf
->as
;
1631 return BGP_ERR_PEER_GROUP_MEMBER
;
1633 if (peer_sort(peer
->group
->conf
) == BGP_PEER_IBGP
) {
1634 if ((as_type
!= AS_INTERNAL
)
1635 && (bgp
->as
!= *as
)) {
1637 return BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT
;
1640 if ((as_type
!= AS_EXTERNAL
)
1641 && (bgp
->as
== *as
)) {
1643 return BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT
;
1648 /* Existing peer's AS number change. */
1649 if (((peer
->as_type
== AS_SPECIFIED
) && peer
->as
!= *as
)
1650 || (peer
->as_type
!= as_type
))
1651 peer_as_change(peer
, *as
, as_type
);
1654 return BGP_ERR_NO_INTERFACE_CONFIG
;
1656 /* If the peer is not part of our confederation, and its not an
1657 iBGP peer then spoof the source AS */
1658 if (bgp_config_check(bgp
, BGP_CONFIG_CONFEDERATION
)
1659 && !bgp_confederation_peers_check(bgp
, *as
)
1661 local_as
= bgp
->confed_id
;
1665 /* If this is IPv4 unicast configuration and "no bgp default
1666 ipv4-unicast" is specified. */
1668 if (bgp_flag_check(bgp
, BGP_FLAG_NO_DEFAULT_IPV4
)
1669 && afi
== AFI_IP
&& safi
== SAFI_UNICAST
)
1670 peer_create(su
, conf_if
, bgp
, local_as
, *as
, as_type
, 0,
1673 peer_create(su
, conf_if
, bgp
, local_as
, *as
, as_type
,
1680 static void peer_group2peer_config_copy_af(struct peer_group
*group
,
1681 struct peer
*peer
, afi_t afi
,
1685 int out
= FILTER_OUT
;
1687 uint32_t pflags_ovrd
;
1688 uint8_t *pfilter_ovrd
;
1692 pflags_ovrd
= peer
->af_flags_override
[afi
][safi
];
1693 pfilter_ovrd
= &peer
->filter_override
[afi
][safi
][in
];
1695 /* peer af_flags apply */
1696 flags_tmp
= conf
->af_flags
[afi
][safi
] & ~pflags_ovrd
;
1697 flags_tmp
^= conf
->af_flags_invert
[afi
][safi
]
1698 ^ peer
->af_flags_invert
[afi
][safi
];
1699 flags_tmp
&= ~pflags_ovrd
;
1701 UNSET_FLAG(peer
->af_flags
[afi
][safi
], ~pflags_ovrd
);
1702 SET_FLAG(peer
->af_flags
[afi
][safi
], flags_tmp
);
1703 SET_FLAG(peer
->af_flags_invert
[afi
][safi
],
1704 conf
->af_flags_invert
[afi
][safi
]);
1706 /* maximum-prefix */
1707 if (!CHECK_FLAG(pflags_ovrd
, PEER_FLAG_MAX_PREFIX
)) {
1708 PEER_ATTR_INHERIT(peer
, group
, pmax
[afi
][safi
]);
1709 PEER_ATTR_INHERIT(peer
, group
, pmax_threshold
[afi
][safi
]);
1710 PEER_ATTR_INHERIT(peer
, group
, pmax_restart
[afi
][safi
]);
1714 if (!CHECK_FLAG(pflags_ovrd
, PEER_FLAG_ALLOWAS_IN
))
1715 PEER_ATTR_INHERIT(peer
, group
, allowas_in
[afi
][safi
]);
1718 if (!CHECK_FLAG(pflags_ovrd
, PEER_FLAG_WEIGHT
))
1719 PEER_ATTR_INHERIT(peer
, group
, weight
[afi
][safi
]);
1721 /* default-originate route-map */
1722 if (!CHECK_FLAG(pflags_ovrd
, PEER_FLAG_DEFAULT_ORIGINATE
)) {
1723 PEER_STR_ATTR_INHERIT(peer
, group
, default_rmap
[afi
][safi
].name
,
1724 MTYPE_ROUTE_MAP_NAME
);
1725 PEER_ATTR_INHERIT(peer
, group
, default_rmap
[afi
][safi
].map
);
1728 /* inbound filter apply */
1729 if (!CHECK_FLAG(pfilter_ovrd
[in
], PEER_FT_DISTRIBUTE_LIST
)) {
1730 PEER_STR_ATTR_INHERIT(peer
, group
,
1731 filter
[afi
][safi
].dlist
[in
].name
,
1732 MTYPE_BGP_FILTER_NAME
);
1733 PEER_ATTR_INHERIT(peer
, group
,
1734 filter
[afi
][safi
].dlist
[in
].alist
);
1737 if (!CHECK_FLAG(pfilter_ovrd
[in
], PEER_FT_PREFIX_LIST
)) {
1738 PEER_STR_ATTR_INHERIT(peer
, group
,
1739 filter
[afi
][safi
].plist
[in
].name
,
1740 MTYPE_BGP_FILTER_NAME
);
1741 PEER_ATTR_INHERIT(peer
, group
,
1742 filter
[afi
][safi
].plist
[in
].plist
);
1745 if (!CHECK_FLAG(pfilter_ovrd
[in
], PEER_FT_FILTER_LIST
)) {
1746 PEER_STR_ATTR_INHERIT(peer
, group
,
1747 filter
[afi
][safi
].aslist
[in
].name
,
1748 MTYPE_BGP_FILTER_NAME
);
1749 PEER_ATTR_INHERIT(peer
, group
,
1750 filter
[afi
][safi
].aslist
[in
].aslist
);
1753 if (!CHECK_FLAG(pfilter_ovrd
[RMAP_IN
], PEER_FT_ROUTE_MAP
)) {
1754 PEER_STR_ATTR_INHERIT(peer
, group
,
1755 filter
[afi
][safi
].map
[in
].name
,
1756 MTYPE_BGP_FILTER_NAME
);
1757 PEER_ATTR_INHERIT(peer
, group
,
1758 filter
[afi
][safi
].map
[RMAP_IN
].map
);
1761 /* outbound filter apply */
1762 if (!CHECK_FLAG(pfilter_ovrd
[out
], PEER_FT_DISTRIBUTE_LIST
)) {
1763 PEER_STR_ATTR_INHERIT(peer
, group
,
1764 filter
[afi
][safi
].dlist
[out
].name
,
1765 MTYPE_BGP_FILTER_NAME
);
1766 PEER_ATTR_INHERIT(peer
, group
,
1767 filter
[afi
][safi
].dlist
[out
].alist
);
1770 if (!CHECK_FLAG(pfilter_ovrd
[out
], PEER_FT_PREFIX_LIST
)) {
1771 PEER_STR_ATTR_INHERIT(peer
, group
,
1772 filter
[afi
][safi
].plist
[out
].name
,
1773 MTYPE_BGP_FILTER_NAME
);
1774 PEER_ATTR_INHERIT(peer
, group
,
1775 filter
[afi
][safi
].plist
[out
].plist
);
1778 if (!CHECK_FLAG(pfilter_ovrd
[out
], PEER_FT_FILTER_LIST
)) {
1779 PEER_STR_ATTR_INHERIT(peer
, group
,
1780 filter
[afi
][safi
].aslist
[out
].name
,
1781 MTYPE_BGP_FILTER_NAME
);
1782 PEER_ATTR_INHERIT(peer
, group
,
1783 filter
[afi
][safi
].aslist
[out
].aslist
);
1786 if (!CHECK_FLAG(pfilter_ovrd
[RMAP_OUT
], PEER_FT_ROUTE_MAP
)) {
1787 PEER_STR_ATTR_INHERIT(peer
, group
,
1788 filter
[afi
][safi
].map
[RMAP_OUT
].name
,
1789 MTYPE_BGP_FILTER_NAME
);
1790 PEER_ATTR_INHERIT(peer
, group
,
1791 filter
[afi
][safi
].map
[RMAP_OUT
].map
);
1794 /* nondirectional filter apply */
1795 if (!CHECK_FLAG(pfilter_ovrd
[0], PEER_FT_UNSUPPRESS_MAP
)) {
1796 PEER_STR_ATTR_INHERIT(peer
, group
, filter
[afi
][safi
].usmap
.name
,
1797 MTYPE_BGP_FILTER_NAME
);
1798 PEER_ATTR_INHERIT(peer
, group
, filter
[afi
][safi
].usmap
.map
);
1802 static int peer_activate_af(struct peer
*peer
, afi_t afi
, safi_t safi
)
1806 if (CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
1807 flog_err(BGP_ERR_PEER_GROUP
, "%s was called for peer-group %s",
1808 __func__
, peer
->host
);
1812 /* Do not activate a peer for both SAFI_UNICAST and SAFI_LABELED_UNICAST
1814 if ((safi
== SAFI_UNICAST
&& peer
->afc
[afi
][SAFI_LABELED_UNICAST
])
1815 || (safi
== SAFI_LABELED_UNICAST
&& peer
->afc
[afi
][SAFI_UNICAST
]))
1816 return BGP_ERR_PEER_SAFI_CONFLICT
;
1818 /* Nothing to do if we've already activated this peer */
1819 if (peer
->afc
[afi
][safi
])
1822 if (peer_af_create(peer
, afi
, safi
) == NULL
)
1825 active
= peer_active(peer
);
1826 peer
->afc
[afi
][safi
] = 1;
1829 peer_group2peer_config_copy_af(peer
->group
, peer
, afi
, safi
);
1831 if (!active
&& peer_active(peer
)) {
1832 bgp_timer_set(peer
);
1834 if (peer
->status
== Established
) {
1835 if (CHECK_FLAG(peer
->cap
, PEER_CAP_DYNAMIC_RCV
)) {
1836 peer
->afc_adv
[afi
][safi
] = 1;
1837 bgp_capability_send(peer
, afi
, safi
,
1839 CAPABILITY_ACTION_SET
);
1840 if (peer
->afc_recv
[afi
][safi
]) {
1841 peer
->afc_nego
[afi
][safi
] = 1;
1842 bgp_announce_route(peer
, afi
, safi
);
1845 peer
->last_reset
= PEER_DOWN_AF_ACTIVATE
;
1846 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
1847 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
1850 if (peer
->status
== OpenSent
|| peer
->status
== OpenConfirm
) {
1851 peer
->last_reset
= PEER_DOWN_AF_ACTIVATE
;
1852 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
1853 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
1860 /* Activate the peer or peer group for specified AFI and SAFI. */
1861 int peer_activate(struct peer
*peer
, afi_t afi
, safi_t safi
)
1864 struct peer_group
*group
;
1865 struct listnode
*node
, *nnode
;
1866 struct peer
*tmp_peer
;
1869 /* Nothing to do if we've already activated this peer */
1870 if (peer
->afc
[afi
][safi
])
1875 /* This is a peer-group so activate all of the members of the
1876 * peer-group as well */
1877 if (CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
1879 /* Do not activate a peer for both SAFI_UNICAST and
1880 * SAFI_LABELED_UNICAST */
1881 if ((safi
== SAFI_UNICAST
1882 && peer
->afc
[afi
][SAFI_LABELED_UNICAST
])
1883 || (safi
== SAFI_LABELED_UNICAST
1884 && peer
->afc
[afi
][SAFI_UNICAST
]))
1885 return BGP_ERR_PEER_SAFI_CONFLICT
;
1887 peer
->afc
[afi
][safi
] = 1;
1888 group
= peer
->group
;
1890 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, tmp_peer
)) {
1891 ret
|= peer_activate_af(tmp_peer
, afi
, safi
);
1894 ret
|= peer_activate_af(peer
, afi
, safi
);
1897 /* If this is the first peer to be activated for this
1898 * afi/labeled-unicast recalc bestpaths to trigger label allocation */
1899 if (safi
== SAFI_LABELED_UNICAST
1900 && !bgp
->allocate_mpls_labels
[afi
][SAFI_UNICAST
]) {
1902 if (BGP_DEBUG(zebra
, ZEBRA
))
1904 "peer(s) are now active for labeled-unicast, allocate MPLS labels");
1906 bgp
->allocate_mpls_labels
[afi
][SAFI_UNICAST
] = 1;
1907 bgp_recalculate_afi_safi_bestpaths(bgp
, afi
, SAFI_UNICAST
);
1910 if (safi
== SAFI_FLOWSPEC
) {
1911 /* connect to table manager */
1912 bgp_zebra_init_tm_connect(bgp
);
1917 static int non_peergroup_deactivate_af(struct peer
*peer
, afi_t afi
,
1920 if (CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
1921 flog_err(BGP_ERR_PEER_GROUP
, "%s was called for peer-group %s",
1922 __func__
, peer
->host
);
1926 /* Nothing to do if we've already deactivated this peer */
1927 if (!peer
->afc
[afi
][safi
])
1930 /* De-activate the address family configuration. */
1931 peer
->afc
[afi
][safi
] = 0;
1933 if (peer_af_delete(peer
, afi
, safi
) != 0) {
1934 flog_err(BGP_ERR_PEER_DELETE
,
1935 "couldn't delete af structure for peer %s",
1940 if (peer
->status
== Established
) {
1941 if (CHECK_FLAG(peer
->cap
, PEER_CAP_DYNAMIC_RCV
)) {
1942 peer
->afc_adv
[afi
][safi
] = 0;
1943 peer
->afc_nego
[afi
][safi
] = 0;
1945 if (peer_active_nego(peer
)) {
1946 bgp_capability_send(peer
, afi
, safi
,
1948 CAPABILITY_ACTION_UNSET
);
1949 bgp_clear_route(peer
, afi
, safi
);
1950 peer
->pcount
[afi
][safi
] = 0;
1952 peer
->last_reset
= PEER_DOWN_NEIGHBOR_DELETE
;
1953 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
1954 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
1957 peer
->last_reset
= PEER_DOWN_NEIGHBOR_DELETE
;
1958 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
1959 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
1966 int peer_deactivate(struct peer
*peer
, afi_t afi
, safi_t safi
)
1969 struct peer_group
*group
;
1970 struct peer
*tmp_peer
;
1971 struct listnode
*node
, *nnode
;
1974 /* Nothing to do if we've already de-activated this peer */
1975 if (!peer
->afc
[afi
][safi
])
1978 /* This is a peer-group so de-activate all of the members of the
1979 * peer-group as well */
1980 if (CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
1981 peer
->afc
[afi
][safi
] = 0;
1982 group
= peer
->group
;
1984 if (peer_af_delete(peer
, afi
, safi
) != 0) {
1985 flog_err(BGP_ERR_PEER_DELETE
,
1986 "couldn't delete af structure for peer %s",
1990 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, tmp_peer
)) {
1991 ret
|= non_peergroup_deactivate_af(tmp_peer
, afi
, safi
);
1994 ret
|= non_peergroup_deactivate_af(peer
, afi
, safi
);
1999 /* If this is the last peer to be deactivated for this
2000 * afi/labeled-unicast recalc bestpaths to trigger label deallocation */
2001 if (safi
== SAFI_LABELED_UNICAST
2002 && bgp
->allocate_mpls_labels
[afi
][SAFI_UNICAST
]
2003 && !bgp_afi_safi_peer_exists(bgp
, afi
, safi
)) {
2005 if (BGP_DEBUG(zebra
, ZEBRA
))
2007 "peer(s) are no longer active for labeled-unicast, deallocate MPLS labels");
2009 bgp
->allocate_mpls_labels
[afi
][SAFI_UNICAST
] = 0;
2010 bgp_recalculate_afi_safi_bestpaths(bgp
, afi
, SAFI_UNICAST
);
2015 int peer_afc_set(struct peer
*peer
, afi_t afi
, safi_t safi
, int enable
)
2018 return peer_activate(peer
, afi
, safi
);
2020 return peer_deactivate(peer
, afi
, safi
);
2023 static void peer_nsf_stop(struct peer
*peer
)
2028 UNSET_FLAG(peer
->sflags
, PEER_STATUS_NSF_WAIT
);
2029 UNSET_FLAG(peer
->sflags
, PEER_STATUS_NSF_MODE
);
2031 for (afi
= AFI_IP
; afi
< AFI_MAX
; afi
++)
2032 for (safi
= SAFI_UNICAST
; safi
<= SAFI_MPLS_VPN
; safi
++)
2033 peer
->nsf
[afi
][safi
] = 0;
2035 if (peer
->t_gr_restart
) {
2036 BGP_TIMER_OFF(peer
->t_gr_restart
);
2037 if (bgp_debug_neighbor_events(peer
))
2038 zlog_debug("%s graceful restart timer stopped",
2041 if (peer
->t_gr_stale
) {
2042 BGP_TIMER_OFF(peer
->t_gr_stale
);
2043 if (bgp_debug_neighbor_events(peer
))
2045 "%s graceful restart stalepath timer stopped",
2048 bgp_clear_route_all(peer
);
2051 /* Delete peer from confguration.
2053 * The peer is moved to a dead-end "Deleted" neighbour-state, to allow
2054 * it to "cool off" and refcounts to hit 0, at which state it is freed.
2056 * This function /should/ take care to be idempotent, to guard against
2057 * it being called multiple times through stray events that come in
2058 * that happen to result in this function being called again. That
2059 * said, getting here for a "Deleted" peer is a bug in the neighbour
2062 int peer_delete(struct peer
*peer
)
2068 struct bgp_filter
*filter
;
2069 struct listnode
*pn
;
2072 assert(peer
->status
!= Deleted
);
2075 accept_peer
= CHECK_FLAG(peer
->sflags
, PEER_STATUS_ACCEPT_PEER
);
2077 bgp_reads_off(peer
);
2078 bgp_writes_off(peer
);
2079 assert(!CHECK_FLAG(peer
->thread_flags
, PEER_THREAD_WRITES_ON
));
2080 assert(!CHECK_FLAG(peer
->thread_flags
, PEER_THREAD_READS_ON
));
2082 if (CHECK_FLAG(peer
->sflags
, PEER_STATUS_NSF_WAIT
))
2083 peer_nsf_stop(peer
);
2085 SET_FLAG(peer
->flags
, PEER_FLAG_DELETE
);
2087 /* If this peer belongs to peer group, clear up the
2090 if (peer_dynamic_neighbor(peer
))
2091 peer_drop_dynamic_neighbor(peer
);
2093 if ((pn
= listnode_lookup(peer
->group
->peer
, peer
))) {
2095 peer
); /* group->peer list reference */
2096 list_delete_node(peer
->group
->peer
, pn
);
2101 /* Withdraw all information from routing table. We can not use
2102 * BGP_EVENT_ADD (peer, BGP_Stop) at here. Because the event is
2103 * executed after peer structure is deleted.
2105 peer
->last_reset
= PEER_DOWN_NEIGHBOR_DELETE
;
2107 UNSET_FLAG(peer
->flags
, PEER_FLAG_DELETE
);
2109 if (peer
->doppelganger
) {
2110 peer
->doppelganger
->doppelganger
= NULL
;
2111 peer
->doppelganger
= NULL
;
2114 UNSET_FLAG(peer
->sflags
, PEER_STATUS_ACCEPT_PEER
);
2115 bgp_fsm_change_status(peer
, Deleted
);
2117 /* Remove from NHT */
2118 if (CHECK_FLAG(peer
->flags
, PEER_FLAG_CONFIG_NODE
))
2119 bgp_unlink_nexthop_by_peer(peer
);
2121 /* Password configuration */
2122 if (CHECK_FLAG(peer
->flags
, PEER_FLAG_PASSWORD
)) {
2123 XFREE(MTYPE_PEER_PASSWORD
, peer
->password
);
2125 if (!accept_peer
&& !BGP_PEER_SU_UNSPEC(peer
)
2126 && !CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
))
2127 bgp_md5_unset(peer
);
2130 bgp_timer_set(peer
); /* stops all timers for Deleted */
2132 /* Delete from all peer list. */
2133 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)
2134 && (pn
= listnode_lookup(bgp
->peer
, peer
))) {
2135 peer_unlock(peer
); /* bgp peer list reference */
2136 list_delete_node(bgp
->peer
, pn
);
2137 hash_release(bgp
->peerhash
, peer
);
2142 stream_fifo_free(peer
->ibuf
);
2147 stream_fifo_free(peer
->obuf
);
2151 if (peer
->ibuf_work
) {
2152 ringbuf_del(peer
->ibuf_work
);
2153 peer
->ibuf_work
= NULL
;
2156 if (peer
->obuf_work
) {
2157 stream_free(peer
->obuf_work
);
2158 peer
->obuf_work
= NULL
;
2161 if (peer
->scratch
) {
2162 stream_free(peer
->scratch
);
2163 peer
->scratch
= NULL
;
2166 /* Local and remote addresses. */
2167 if (peer
->su_local
) {
2168 sockunion_free(peer
->su_local
);
2169 peer
->su_local
= NULL
;
2172 if (peer
->su_remote
) {
2173 sockunion_free(peer
->su_remote
);
2174 peer
->su_remote
= NULL
;
2177 /* Free filter related memory. */
2178 FOREACH_AFI_SAFI (afi
, safi
) {
2179 filter
= &peer
->filter
[afi
][safi
];
2181 for (i
= FILTER_IN
; i
< FILTER_MAX
; i
++) {
2182 if (filter
->dlist
[i
].name
) {
2183 XFREE(MTYPE_BGP_FILTER_NAME
,
2184 filter
->dlist
[i
].name
);
2185 filter
->dlist
[i
].name
= NULL
;
2188 if (filter
->plist
[i
].name
) {
2189 XFREE(MTYPE_BGP_FILTER_NAME
,
2190 filter
->plist
[i
].name
);
2191 filter
->plist
[i
].name
= NULL
;
2194 if (filter
->aslist
[i
].name
) {
2195 XFREE(MTYPE_BGP_FILTER_NAME
,
2196 filter
->aslist
[i
].name
);
2197 filter
->aslist
[i
].name
= NULL
;
2201 for (i
= RMAP_IN
; i
< RMAP_MAX
; i
++) {
2202 if (filter
->map
[i
].name
) {
2203 XFREE(MTYPE_BGP_FILTER_NAME
,
2204 filter
->map
[i
].name
);
2205 filter
->map
[i
].name
= NULL
;
2209 if (filter
->usmap
.name
) {
2210 XFREE(MTYPE_BGP_FILTER_NAME
, filter
->usmap
.name
);
2211 filter
->usmap
.name
= NULL
;
2214 if (peer
->default_rmap
[afi
][safi
].name
) {
2215 XFREE(MTYPE_ROUTE_MAP_NAME
,
2216 peer
->default_rmap
[afi
][safi
].name
);
2217 peer
->default_rmap
[afi
][safi
].name
= NULL
;
2221 FOREACH_AFI_SAFI (afi
, safi
)
2222 peer_af_delete(peer
, afi
, safi
);
2224 if (peer
->hostname
) {
2225 XFREE(MTYPE_BGP_PEER_HOST
, peer
->hostname
);
2226 peer
->hostname
= NULL
;
2229 if (peer
->domainname
) {
2230 XFREE(MTYPE_BGP_PEER_HOST
, peer
->domainname
);
2231 peer
->domainname
= NULL
;
2234 peer_unlock(peer
); /* initial reference */
2239 static int peer_group_cmp(struct peer_group
*g1
, struct peer_group
*g2
)
2241 return strcmp(g1
->name
, g2
->name
);
2244 /* Peer group cofiguration. */
2245 static struct peer_group
*peer_group_new(void)
2247 return (struct peer_group
*)XCALLOC(MTYPE_PEER_GROUP
,
2248 sizeof(struct peer_group
));
2251 static void peer_group_free(struct peer_group
*group
)
2253 XFREE(MTYPE_PEER_GROUP
, group
);
2256 struct peer_group
*peer_group_lookup(struct bgp
*bgp
, const char *name
)
2258 struct peer_group
*group
;
2259 struct listnode
*node
, *nnode
;
2261 for (ALL_LIST_ELEMENTS(bgp
->group
, node
, nnode
, group
)) {
2262 if (strcmp(group
->name
, name
) == 0)
2268 struct peer_group
*peer_group_get(struct bgp
*bgp
, const char *name
)
2270 struct peer_group
*group
;
2273 group
= peer_group_lookup(bgp
, name
);
2277 group
= peer_group_new();
2280 XFREE(MTYPE_PEER_GROUP_HOST
, group
->name
);
2281 group
->name
= XSTRDUP(MTYPE_PEER_GROUP_HOST
, name
);
2282 group
->peer
= list_new();
2283 for (afi
= AFI_IP
; afi
< AFI_MAX
; afi
++)
2284 group
->listen_range
[afi
] = list_new();
2285 group
->conf
= peer_new(bgp
);
2286 if (!bgp_flag_check(bgp
, BGP_FLAG_NO_DEFAULT_IPV4
))
2287 group
->conf
->afc
[AFI_IP
][SAFI_UNICAST
] = 1;
2288 if (group
->conf
->host
)
2289 XFREE(MTYPE_BGP_PEER_HOST
, group
->conf
->host
);
2290 group
->conf
->host
= XSTRDUP(MTYPE_BGP_PEER_HOST
, name
);
2291 group
->conf
->group
= group
;
2292 group
->conf
->as
= 0;
2293 group
->conf
->ttl
= 1;
2294 group
->conf
->gtsm_hops
= 0;
2295 group
->conf
->v_routeadv
= BGP_DEFAULT_EBGP_ROUTEADV
;
2296 SET_FLAG(group
->conf
->sflags
, PEER_STATUS_GROUP
);
2297 listnode_add_sort(bgp
->group
, group
);
2302 static void peer_group2peer_config_copy(struct peer_group
*group
,
2312 peer
->as
= conf
->as
;
2315 if (!CHECK_FLAG(peer
->flags_override
, PEER_FLAG_LOCAL_AS
))
2316 peer
->change_local_as
= conf
->change_local_as
;
2319 peer
->ttl
= conf
->ttl
;
2322 peer
->gtsm_hops
= conf
->gtsm_hops
;
2324 /* peer flags apply */
2325 flags_tmp
= conf
->flags
& ~peer
->flags_override
;
2326 flags_tmp
^= conf
->flags_invert
^ peer
->flags_invert
;
2327 flags_tmp
&= ~peer
->flags_override
;
2329 UNSET_FLAG(peer
->flags
, ~peer
->flags_override
);
2330 SET_FLAG(peer
->flags
, flags_tmp
);
2331 SET_FLAG(peer
->flags_invert
, conf
->flags_invert
);
2333 /* peer timers apply */
2334 if (!CHECK_FLAG(peer
->flags_override
, PEER_FLAG_TIMER
)) {
2335 PEER_ATTR_INHERIT(peer
, group
, holdtime
);
2336 PEER_ATTR_INHERIT(peer
, group
, keepalive
);
2339 if (!CHECK_FLAG(peer
->flags_override
, PEER_FLAG_TIMER_CONNECT
)) {
2340 PEER_ATTR_INHERIT(peer
, group
, connect
);
2341 if (CHECK_FLAG(conf
->flags
, PEER_FLAG_TIMER_CONNECT
))
2342 peer
->v_connect
= conf
->connect
;
2344 peer
->v_connect
= BGP_DEFAULT_CONNECT_RETRY
;
2347 /* advertisement-interval apply */
2348 if (!CHECK_FLAG(peer
->flags_override
, PEER_FLAG_ROUTEADV
)) {
2349 PEER_ATTR_INHERIT(peer
, group
, routeadv
);
2350 if (CHECK_FLAG(conf
->flags
, PEER_FLAG_ROUTEADV
))
2351 peer
->v_routeadv
= conf
->routeadv
;
2353 peer
->v_routeadv
= (peer_sort(peer
) == BGP_PEER_IBGP
)
2354 ? BGP_DEFAULT_IBGP_ROUTEADV
2355 : BGP_DEFAULT_EBGP_ROUTEADV
;
2358 /* password apply */
2359 if (!CHECK_FLAG(peer
->flags_override
, PEER_FLAG_PASSWORD
))
2360 PEER_STR_ATTR_INHERIT(peer
, group
, password
,
2361 MTYPE_PEER_PASSWORD
);
2363 if (!BGP_PEER_SU_UNSPEC(peer
))
2366 /* update-source apply */
2367 if (!CHECK_FLAG(peer
->flags_override
, PEER_FLAG_UPDATE_SOURCE
)) {
2368 if (conf
->update_source
) {
2369 XFREE(MTYPE_PEER_UPDATE_SOURCE
, peer
->update_if
);
2370 PEER_SU_ATTR_INHERIT(peer
, group
, update_source
);
2371 } else if (conf
->update_if
) {
2372 sockunion_free(peer
->update_source
);
2373 PEER_STR_ATTR_INHERIT(peer
, group
, update_if
,
2374 MTYPE_PEER_UPDATE_SOURCE
);
2378 bgp_bfd_peer_group2peer_copy(conf
, peer
);
2381 /* Peer group's remote AS configuration. */
2382 int peer_group_remote_as(struct bgp
*bgp
, const char *group_name
, as_t
*as
,
2385 struct peer_group
*group
;
2387 struct listnode
*node
, *nnode
;
2389 group
= peer_group_lookup(bgp
, group_name
);
2393 if ((as_type
== group
->conf
->as_type
) && (group
->conf
->as
== *as
))
2397 /* When we setup peer-group AS number all peer group member's AS
2398 number must be updated to same number. */
2399 peer_as_change(group
->conf
, *as
, as_type
);
2401 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer
)) {
2402 if (((peer
->as_type
== AS_SPECIFIED
) && peer
->as
!= *as
)
2403 || (peer
->as_type
!= as_type
))
2404 peer_as_change(peer
, *as
, as_type
);
2410 int peer_group_delete(struct peer_group
*group
)
2414 struct prefix
*prefix
;
2416 struct listnode
*node
, *nnode
;
2421 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer
)) {
2422 other
= peer
->doppelganger
;
2424 if (other
&& other
->status
!= Deleted
) {
2425 other
->group
= NULL
;
2429 list_delete_and_null(&group
->peer
);
2431 for (afi
= AFI_IP
; afi
< AFI_MAX
; afi
++) {
2432 for (ALL_LIST_ELEMENTS(group
->listen_range
[afi
], node
, nnode
,
2434 prefix_free(prefix
);
2436 list_delete_and_null(&group
->listen_range
[afi
]);
2439 XFREE(MTYPE_PEER_GROUP_HOST
, group
->name
);
2442 bfd_info_free(&(group
->conf
->bfd_info
));
2444 group
->conf
->group
= NULL
;
2445 peer_delete(group
->conf
);
2447 /* Delete from all peer_group list. */
2448 listnode_delete(bgp
->group
, group
);
2450 peer_group_free(group
);
2455 int peer_group_remote_as_delete(struct peer_group
*group
)
2457 struct peer
*peer
, *other
;
2458 struct listnode
*node
, *nnode
;
2460 if ((group
->conf
->as_type
== AS_UNSPECIFIED
)
2461 || ((!group
->conf
->as
) && (group
->conf
->as_type
== AS_SPECIFIED
)))
2464 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer
)) {
2465 other
= peer
->doppelganger
;
2469 if (other
&& other
->status
!= Deleted
) {
2470 other
->group
= NULL
;
2474 list_delete_all_node(group
->peer
);
2476 group
->conf
->as
= 0;
2477 group
->conf
->as_type
= AS_UNSPECIFIED
;
2482 int peer_group_listen_range_add(struct peer_group
*group
, struct prefix
*range
)
2484 struct prefix
*prefix
;
2485 struct listnode
*node
, *nnode
;
2488 afi
= family2afi(range
->family
);
2490 /* Group needs remote AS configured. */
2491 if (group
->conf
->as_type
== AS_UNSPECIFIED
)
2492 return BGP_ERR_PEER_GROUP_NO_REMOTE_AS
;
2494 /* Ensure no duplicates. Currently we don't care about overlaps. */
2495 for (ALL_LIST_ELEMENTS(group
->listen_range
[afi
], node
, nnode
, prefix
)) {
2496 if (prefix_same(range
, prefix
))
2500 prefix
= prefix_new();
2501 prefix_copy(prefix
, range
);
2502 listnode_add(group
->listen_range
[afi
], prefix
);
2506 int peer_group_listen_range_del(struct peer_group
*group
, struct prefix
*range
)
2508 struct prefix
*prefix
, prefix2
;
2509 struct listnode
*node
, *nnode
;
2512 char buf
[PREFIX2STR_BUFFER
];
2514 afi
= family2afi(range
->family
);
2516 /* Identify the listen range. */
2517 for (ALL_LIST_ELEMENTS(group
->listen_range
[afi
], node
, nnode
, prefix
)) {
2518 if (prefix_same(range
, prefix
))
2523 return BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_NOT_FOUND
;
2525 prefix2str(prefix
, buf
, sizeof(buf
));
2527 /* Dispose off any dynamic neighbors that exist due to this listen range
2529 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer
)) {
2530 if (!peer_dynamic_neighbor(peer
))
2533 sockunion2hostprefix(&peer
->su
, &prefix2
);
2534 if (prefix_match(prefix
, &prefix2
)) {
2535 if (bgp_debug_neighbor_events(peer
))
2537 "Deleting dynamic neighbor %s group %s upon "
2538 "delete of listen range %s",
2539 peer
->host
, group
->name
, buf
);
2544 /* Get rid of the listen range */
2545 listnode_delete(group
->listen_range
[afi
], prefix
);
2550 /* Bind specified peer to peer group. */
2551 int peer_group_bind(struct bgp
*bgp
, union sockunion
*su
, struct peer
*peer
,
2552 struct peer_group
*group
, as_t
*as
)
2554 int first_member
= 0;
2558 /* Lookup the peer. */
2560 peer
= peer_lookup(bgp
, su
);
2562 /* The peer exist, bind it to the peer-group */
2564 /* When the peer already belongs to a peer-group, check the
2566 if (peer_group_active(peer
)) {
2568 /* The peer is already bound to the peer-group,
2571 if (strcmp(peer
->group
->name
, group
->name
) == 0)
2574 return BGP_ERR_PEER_GROUP_CANT_CHANGE
;
2577 /* The peer has not specified a remote-as, inherit it from the
2579 if (peer
->as_type
== AS_UNSPECIFIED
) {
2580 peer
->as_type
= group
->conf
->as_type
;
2581 peer
->as
= group
->conf
->as
;
2584 if (!group
->conf
->as
) {
2585 if (peer_sort(group
->conf
) != BGP_PEER_INTERNAL
2586 && peer_sort(group
->conf
) != peer_sort(peer
)) {
2589 return BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT
;
2592 if (peer_sort(group
->conf
) == BGP_PEER_INTERNAL
)
2596 peer_group2peer_config_copy(group
, peer
);
2598 FOREACH_AFI_SAFI (afi
, safi
) {
2599 if (group
->conf
->afc
[afi
][safi
]) {
2600 peer
->afc
[afi
][safi
] = 1;
2602 if (peer_af_find(peer
, afi
, safi
)
2603 || peer_af_create(peer
, afi
, safi
)) {
2604 peer_group2peer_config_copy_af(
2605 group
, peer
, afi
, safi
);
2607 } else if (peer
->afc
[afi
][safi
])
2608 peer_deactivate(peer
, afi
, safi
);
2612 assert(group
&& peer
->group
== group
);
2614 listnode_delete(bgp
->peer
, peer
);
2616 peer
->group
= group
;
2617 listnode_add_sort(bgp
->peer
, peer
);
2619 peer
= peer_lock(peer
); /* group->peer list reference */
2620 listnode_add(group
->peer
, peer
);
2624 /* Advertisement-interval reset */
2625 if (!CHECK_FLAG(group
->conf
->flags
,
2626 PEER_FLAG_ROUTEADV
)) {
2627 group
->conf
->v_routeadv
=
2628 (peer_sort(group
->conf
)
2630 ? BGP_DEFAULT_IBGP_ROUTEADV
2631 : BGP_DEFAULT_EBGP_ROUTEADV
;
2634 /* ebgp-multihop reset */
2635 if (peer_sort(group
->conf
) == BGP_PEER_IBGP
)
2636 group
->conf
->ttl
= MAXTTL
;
2638 /* local-as reset */
2639 if (peer_sort(group
->conf
) != BGP_PEER_EBGP
) {
2640 group
->conf
->change_local_as
= 0;
2641 peer_flag_unset(group
->conf
,
2642 PEER_FLAG_LOCAL_AS
);
2643 peer_flag_unset(group
->conf
,
2644 PEER_FLAG_LOCAL_AS_NO_PREPEND
);
2645 peer_flag_unset(group
->conf
,
2646 PEER_FLAG_LOCAL_AS_REPLACE_AS
);
2650 SET_FLAG(peer
->flags
, PEER_FLAG_CONFIG_NODE
);
2652 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
)) {
2653 peer
->last_reset
= PEER_DOWN_RMAP_BIND
;
2654 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
2655 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
2657 bgp_session_reset(peer
);
2661 /* Create a new peer. */
2663 if ((group
->conf
->as_type
== AS_SPECIFIED
)
2664 && (!group
->conf
->as
)) {
2665 return BGP_ERR_PEER_GROUP_NO_REMOTE_AS
;
2668 peer
= peer_create(su
, NULL
, bgp
, bgp
->as
, group
->conf
->as
,
2669 group
->conf
->as_type
, 0, 0, group
);
2671 peer
= peer_lock(peer
); /* group->peer list reference */
2672 listnode_add(group
->peer
, peer
);
2674 peer_group2peer_config_copy(group
, peer
);
2676 /* If the peer-group is active for this afi/safi then activate
2678 FOREACH_AFI_SAFI (afi
, safi
) {
2679 if (group
->conf
->afc
[afi
][safi
]) {
2680 peer
->afc
[afi
][safi
] = 1;
2681 peer_af_create(peer
, afi
, safi
);
2682 peer_group2peer_config_copy_af(group
, peer
, afi
,
2684 } else if (peer
->afc
[afi
][safi
])
2685 peer_deactivate(peer
, afi
, safi
);
2688 SET_FLAG(peer
->flags
, PEER_FLAG_CONFIG_NODE
);
2690 /* Set up peer's events and timers. */
2691 if (peer_active(peer
))
2692 bgp_timer_set(peer
);
2698 static int bgp_startup_timer_expire(struct thread
*thread
)
2702 bgp
= THREAD_ARG(thread
);
2703 bgp
->t_startup
= NULL
;
2709 * On shutdown we call the cleanup function which
2710 * does a free of the link list nodes, free up
2711 * the data we are pointing at too.
2713 static void bgp_vrf_string_name_delete(void *data
)
2717 XFREE(MTYPE_TMP
, vname
);
2720 /* BGP instance creation by `router bgp' commands. */
2721 static struct bgp
*bgp_create(as_t
*as
, const char *name
,
2722 enum bgp_instance_type inst_type
)
2728 if ((bgp
= XCALLOC(MTYPE_BGP
, sizeof(struct bgp
))) == NULL
)
2731 if (BGP_DEBUG(zebra
, ZEBRA
)) {
2732 if (inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)
2733 zlog_debug("Creating Default VRF, AS %u", *as
);
2735 zlog_debug("Creating %s %s, AS %u",
2736 (inst_type
== BGP_INSTANCE_TYPE_VRF
)
2743 bgp
->heuristic_coalesce
= true;
2744 bgp
->inst_type
= inst_type
;
2745 bgp
->vrf_id
= (inst_type
== BGP_INSTANCE_TYPE_DEFAULT
) ? VRF_DEFAULT
2747 bgp
->peer_self
= peer_new(bgp
);
2748 if (bgp
->peer_self
->host
)
2749 XFREE(MTYPE_BGP_PEER_HOST
, bgp
->peer_self
->host
);
2750 bgp
->peer_self
->host
=
2751 XSTRDUP(MTYPE_BGP_PEER_HOST
, "Static announcement");
2752 if (bgp
->peer_self
->hostname
!= NULL
) {
2753 XFREE(MTYPE_BGP_PEER_HOST
, bgp
->peer_self
->hostname
);
2754 bgp
->peer_self
->hostname
= NULL
;
2756 if (cmd_hostname_get())
2757 bgp
->peer_self
->hostname
=
2758 XSTRDUP(MTYPE_BGP_PEER_HOST
, cmd_hostname_get());
2760 if (bgp
->peer_self
->domainname
!= NULL
) {
2761 XFREE(MTYPE_BGP_PEER_HOST
, bgp
->peer_self
->domainname
);
2762 bgp
->peer_self
->domainname
= NULL
;
2764 if (cmd_domainname_get())
2765 bgp
->peer_self
->domainname
=
2766 XSTRDUP(MTYPE_BGP_PEER_HOST
, cmd_domainname_get());
2767 bgp
->peer
= list_new();
2768 bgp
->peer
->cmp
= (int (*)(void *, void *))peer_cmp
;
2769 bgp
->peerhash
= hash_create(peer_hash_key_make
, peer_hash_same
,
2771 bgp
->peerhash
->max_size
= BGP_PEER_MAX_HASH_SIZE
;
2773 bgp
->group
= list_new();
2774 bgp
->group
->cmp
= (int (*)(void *, void *))peer_group_cmp
;
2776 FOREACH_AFI_SAFI (afi
, safi
) {
2777 bgp
->route
[afi
][safi
] = bgp_table_init(bgp
, afi
, safi
);
2778 bgp
->aggregate
[afi
][safi
] = bgp_table_init(bgp
, afi
, safi
);
2779 bgp
->rib
[afi
][safi
] = bgp_table_init(bgp
, afi
, safi
);
2781 /* Enable maximum-paths */
2782 bgp_maximum_paths_set(bgp
, afi
, safi
, BGP_PEER_EBGP
,
2784 bgp_maximum_paths_set(bgp
, afi
, safi
, BGP_PEER_IBGP
,
2788 bgp
->v_update_delay
= BGP_UPDATE_DELAY_DEF
;
2789 bgp
->default_local_pref
= BGP_DEFAULT_LOCAL_PREF
;
2790 bgp
->default_subgroup_pkt_queue_max
=
2791 BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX
;
2792 bgp
->default_holdtime
= BGP_DEFAULT_HOLDTIME
;
2793 bgp
->default_keepalive
= BGP_DEFAULT_KEEPALIVE
;
2794 bgp
->restart_time
= BGP_DEFAULT_RESTART_TIME
;
2795 bgp
->stalepath_time
= BGP_DEFAULT_STALEPATH_TIME
;
2796 bgp
->dynamic_neighbors_limit
= BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT
;
2797 bgp
->dynamic_neighbors_count
= 0;
2798 #if DFLT_BGP_IMPORT_CHECK
2799 bgp_flag_set(bgp
, BGP_FLAG_IMPORT_CHECK
);
2801 #if DFLT_BGP_SHOW_HOSTNAME
2802 bgp_flag_set(bgp
, BGP_FLAG_SHOW_HOSTNAME
);
2804 #if DFLT_BGP_LOG_NEIGHBOR_CHANGES
2805 bgp_flag_set(bgp
, BGP_FLAG_LOG_NEIGHBOR_CHANGES
);
2807 #if DFLT_BGP_DETERMINISTIC_MED
2808 bgp_flag_set(bgp
, BGP_FLAG_DETERMINISTIC_MED
);
2810 bgp
->addpath_tx_id
= BGP_ADDPATH_TX_ID_FOR_DEFAULT_ORIGINATE
;
2815 if (inst_type
!= BGP_INSTANCE_TYPE_VRF
) {
2816 bgp
->rfapi
= bgp_rfapi_new(bgp
);
2818 assert(bgp
->rfapi_cfg
);
2820 #endif /* ENABLE_BGP_VNC */
2822 for (afi
= AFI_IP
; afi
< AFI_MAX
; afi
++) {
2823 bgp
->vpn_policy
[afi
].bgp
= bgp
;
2824 bgp
->vpn_policy
[afi
].afi
= afi
;
2825 bgp
->vpn_policy
[afi
].tovpn_label
= MPLS_LABEL_NONE
;
2826 bgp
->vpn_policy
[afi
].tovpn_zebra_vrf_label_last_sent
=
2829 bgp
->vpn_policy
[afi
].import_vrf
= list_new();
2830 bgp
->vpn_policy
[afi
].import_vrf
->del
=
2831 bgp_vrf_string_name_delete
;
2832 bgp
->vpn_policy
[afi
].export_vrf
= list_new();
2833 bgp
->vpn_policy
[afi
].export_vrf
->del
=
2834 bgp_vrf_string_name_delete
;
2837 bgp
->name
= XSTRDUP(MTYPE_BGP
, name
);
2839 /* TODO - The startup timer needs to be run for the whole of BGP
2841 thread_add_timer(bm
->master
, bgp_startup_timer_expire
, bgp
,
2842 bgp
->restart_time
, &bgp
->t_startup
);
2845 /* printable name we can use in debug messages */
2846 if (inst_type
== BGP_INSTANCE_TYPE_DEFAULT
) {
2847 bgp
->name_pretty
= XSTRDUP(MTYPE_BGP
, "VRF default");
2857 len
= 4 + 1 + strlen(n
) + 1; /* "view foo\0" */
2859 bgp
->name_pretty
= XCALLOC(MTYPE_BGP
, len
);
2860 snprintf(bgp
->name_pretty
, len
, "%s %s",
2861 (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
)
2867 atomic_store_explicit(&bgp
->wpkt_quanta
, BGP_WRITE_PACKET_MAX
,
2868 memory_order_relaxed
);
2869 atomic_store_explicit(&bgp
->rpkt_quanta
, BGP_READ_PACKET_MAX
,
2870 memory_order_relaxed
);
2871 bgp
->coalesce_time
= BGP_DEFAULT_SUBGROUP_COALESCE_TIME
;
2875 update_bgp_group_init(bgp
);
2877 /* assign a unique rd id for auto derivation of vrf's RD */
2878 bf_assign_index(bm
->rd_idspace
, bgp
->vrf_rd_id
);
2885 /* Return the "default VRF" instance of BGP. */
2886 struct bgp
*bgp_get_default(void)
2889 struct listnode
*node
, *nnode
;
2891 for (ALL_LIST_ELEMENTS(bm
->bgp
, node
, nnode
, bgp
))
2892 if (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)
2897 /* Lookup BGP entry. */
2898 struct bgp
*bgp_lookup(as_t as
, const char *name
)
2901 struct listnode
*node
, *nnode
;
2903 for (ALL_LIST_ELEMENTS(bm
->bgp
, node
, nnode
, bgp
))
2905 && ((bgp
->name
== NULL
&& name
== NULL
)
2906 || (bgp
->name
&& name
&& strcmp(bgp
->name
, name
) == 0)))
2911 /* Lookup BGP structure by view name. */
2912 struct bgp
*bgp_lookup_by_name(const char *name
)
2915 struct listnode
*node
, *nnode
;
2917 for (ALL_LIST_ELEMENTS(bm
->bgp
, node
, nnode
, bgp
))
2918 if ((bgp
->name
== NULL
&& name
== NULL
)
2919 || (bgp
->name
&& name
&& strcmp(bgp
->name
, name
) == 0))
2924 /* Lookup BGP instance based on VRF id. */
2925 /* Note: Only to be used for incoming messages from Zebra. */
2926 struct bgp
*bgp_lookup_by_vrf_id(vrf_id_t vrf_id
)
2930 /* Lookup VRF (in tree) and follow link. */
2931 vrf
= vrf_lookup_by_id(vrf_id
);
2934 return (vrf
->info
) ? (struct bgp
*)vrf
->info
: NULL
;
2937 /* handle socket creation or deletion, if necessary
2938 * this is called for all new BGP instances
2940 int bgp_handle_socket(struct bgp
*bgp
, struct vrf
*vrf
, vrf_id_t old_vrf_id
,
2945 /* Create BGP server socket, if listen mode not disabled */
2946 if (!bgp
|| bgp_option_check(BGP_OPT_NO_LISTEN
))
2948 if (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
) {
2950 * suppress vrf socket
2952 if (create
== FALSE
) {
2953 bgp_close_vrf_socket(bgp
);
2957 return BGP_ERR_INVALID_VALUE
;
2959 * if vrf_id did not change
2961 if (vrf
->vrf_id
== old_vrf_id
)
2963 if (old_vrf_id
!= VRF_UNKNOWN
) {
2964 /* look for old socket. close it. */
2965 bgp_close_vrf_socket(bgp
);
2967 /* if backend is not yet identified ( VRF_UNKNOWN) then
2968 * creation will be done later
2970 if (vrf
->vrf_id
== VRF_UNKNOWN
)
2972 ret
= bgp_socket(bgp
, bm
->port
, bm
->address
);
2974 return BGP_ERR_INVALID_VALUE
;
2977 return bgp_check_main_socket(create
, bgp
);
2980 /* Called from VTY commands. */
2981 int bgp_get(struct bgp
**bgp_val
, as_t
*as
, const char *name
,
2982 enum bgp_instance_type inst_type
)
2985 struct vrf
*vrf
= NULL
;
2987 /* Multiple instance check. */
2988 if (bgp_option_check(BGP_OPT_MULTIPLE_INSTANCE
)) {
2990 bgp
= bgp_lookup_by_name(name
);
2992 bgp
= bgp_get_default();
2994 /* Already exists. */
2996 if (bgp
->as
!= *as
) {
2998 return BGP_ERR_INSTANCE_MISMATCH
;
3000 if (bgp
->inst_type
!= inst_type
)
3001 return BGP_ERR_INSTANCE_MISMATCH
;
3006 /* BGP instance name can not be specified for single instance.
3009 return BGP_ERR_MULTIPLE_INSTANCE_NOT_SET
;
3011 /* Get default BGP structure if exists. */
3012 bgp
= bgp_get_default();
3015 if (bgp
->as
!= *as
) {
3017 return BGP_ERR_AS_MISMATCH
;
3024 bgp
= bgp_create(as
, name
, inst_type
);
3025 bgp_router_id_set(bgp
, &bgp
->router_id_zebra
);
3026 bgp_address_init(bgp
);
3027 bgp_tip_hash_init(bgp
);
3031 bgp
->t_rmap_def_originate_eval
= NULL
;
3033 /* If Default instance or VRF, link to the VRF structure, if present. */
3034 if (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
3035 || bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
) {
3036 vrf
= bgp_vrf_lookup_by_instance_type(bgp
);
3038 bgp_vrf_link(bgp
, vrf
);
3040 /* BGP server socket already processed if BGP instance
3041 * already part of the list
3043 bgp_handle_socket(bgp
, vrf
, VRF_UNKNOWN
, true);
3044 listnode_add(bm
->bgp
, bgp
);
3046 if (IS_BGP_INST_KNOWN_TO_ZEBRA(bgp
))
3047 bgp_zebra_instance_register(bgp
);
3054 * Make BGP instance "up". Applies only to VRFs (non-default) and
3055 * implies the VRF has been learnt from Zebra.
3057 void bgp_instance_up(struct bgp
*bgp
)
3060 struct listnode
*node
, *next
;
3062 /* Register with zebra. */
3063 bgp_zebra_instance_register(bgp
);
3065 /* Kick off any peers that may have been configured. */
3066 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, next
, peer
)) {
3067 if (!BGP_PEER_START_SUPPRESSED(peer
))
3068 BGP_EVENT_ADD(peer
, BGP_Start
);
3071 /* Process any networks that have been configured. */
3072 bgp_static_add(bgp
);
3076 * Make BGP instance "down". Applies only to VRFs (non-default) and
3077 * implies the VRF has been deleted by Zebra.
3079 void bgp_instance_down(struct bgp
*bgp
)
3082 struct listnode
*node
;
3083 struct listnode
*next
;
3086 if (bgp
->t_rmap_def_originate_eval
) {
3087 BGP_TIMER_OFF(bgp
->t_rmap_def_originate_eval
);
3088 bgp_unlock(bgp
); /* TODO - This timer is started with a lock -
3092 /* Bring down peers, so corresponding routes are purged. */
3093 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, next
, peer
)) {
3094 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
))
3095 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
3096 BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN
);
3098 bgp_session_reset(peer
);
3101 /* Purge network and redistributed routes. */
3102 bgp_purge_static_redist_routes(bgp
);
3104 /* Cleanup registered nexthops (flags) */
3105 bgp_cleanup_nexthops(bgp
);
3108 /* Delete BGP instance. */
3109 int bgp_delete(struct bgp
*bgp
)
3112 struct peer_group
*group
;
3113 struct listnode
*node
, *next
;
3119 THREAD_OFF(bgp
->t_startup
);
3120 THREAD_OFF(bgp
->t_maxmed_onstartup
);
3121 THREAD_OFF(bgp
->t_update_delay
);
3122 THREAD_OFF(bgp
->t_establish_wait
);
3124 if (BGP_DEBUG(zebra
, ZEBRA
)) {
3125 if (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)
3126 zlog_debug("Deleting Default VRF");
3128 zlog_debug("Deleting %s %s",
3129 (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
)
3135 /* unmap from RT list */
3136 bgp_evpn_vrf_delete(bgp
);
3139 if (bgp
->t_rmap_def_originate_eval
) {
3140 BGP_TIMER_OFF(bgp
->t_rmap_def_originate_eval
);
3141 bgp_unlock(bgp
); /* TODO - This timer is started with a lock -
3145 /* Inform peers we're going down. */
3146 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, next
, peer
)) {
3147 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
))
3148 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
3149 BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN
);
3152 /* Delete static routes (networks). */
3153 bgp_static_delete(bgp
);
3155 /* Unset redistribution. */
3156 for (afi
= AFI_IP
; afi
< AFI_MAX
; afi
++)
3157 for (i
= 0; i
< ZEBRA_ROUTE_MAX
; i
++)
3158 if (i
!= ZEBRA_ROUTE_BGP
)
3159 bgp_redistribute_unset(bgp
, afi
, i
, 0);
3161 /* Free peers and peer-groups. */
3162 for (ALL_LIST_ELEMENTS(bgp
->group
, node
, next
, group
))
3163 peer_group_delete(group
);
3165 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, next
, peer
))
3168 if (bgp
->peer_self
) {
3169 peer_delete(bgp
->peer_self
);
3170 bgp
->peer_self
= NULL
;
3173 update_bgp_group_free(bgp
);
3175 /* TODO - Other memory may need to be freed - e.g., NHT */
3180 bgp_cleanup_routes(bgp
);
3182 for (afi
= 0; afi
< AFI_MAX
; ++afi
) {
3183 if (!bgp
->vpn_policy
[afi
].import_redirect_rtlist
)
3186 &bgp
->vpn_policy
[afi
]
3187 .import_redirect_rtlist
);
3188 bgp
->vpn_policy
[afi
].import_redirect_rtlist
= NULL
;
3190 /* Remove visibility via the master list - there may however still be
3191 * routes to be processed still referencing the struct bgp.
3193 listnode_delete(bm
->bgp
, bgp
);
3195 /* Deregister from Zebra, if needed */
3196 if (IS_BGP_INST_KNOWN_TO_ZEBRA(bgp
))
3197 bgp_zebra_instance_deregister(bgp
);
3199 /* Free interfaces in this instance. */
3202 vrf
= bgp_vrf_lookup_by_instance_type(bgp
);
3203 bgp_handle_socket(bgp
, vrf
, VRF_UNKNOWN
, false);
3205 bgp_vrf_unlink(bgp
, vrf
);
3207 thread_master_free_unused(bm
->master
);
3208 bgp_unlock(bgp
); /* initial reference */
3213 void bgp_free(struct bgp
*bgp
)
3217 struct bgp_table
*table
;
3218 struct bgp_node
*rn
;
3219 struct bgp_rmap
*rmap
;
3223 list_delete_and_null(&bgp
->group
);
3224 list_delete_and_null(&bgp
->peer
);
3226 if (bgp
->peerhash
) {
3227 hash_free(bgp
->peerhash
);
3228 bgp
->peerhash
= NULL
;
3231 FOREACH_AFI_SAFI (afi
, safi
) {
3232 /* Special handling for 2-level routing tables. */
3233 if (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
3234 || safi
== SAFI_EVPN
) {
3235 for (rn
= bgp_table_top(bgp
->rib
[afi
][safi
]); rn
;
3236 rn
= bgp_route_next(rn
)) {
3237 table
= (struct bgp_table
*)rn
->info
;
3238 bgp_table_finish(&table
);
3241 if (bgp
->route
[afi
][safi
])
3242 bgp_table_finish(&bgp
->route
[afi
][safi
]);
3243 if (bgp
->aggregate
[afi
][safi
])
3244 bgp_table_finish(&bgp
->aggregate
[afi
][safi
]);
3245 if (bgp
->rib
[afi
][safi
])
3246 bgp_table_finish(&bgp
->rib
[afi
][safi
]);
3247 rmap
= &bgp
->table_map
[afi
][safi
];
3249 XFREE(MTYPE_ROUTE_MAP_NAME
, rmap
->name
);
3252 bgp_scan_finish(bgp
);
3253 bgp_address_destroy(bgp
);
3254 bgp_tip_hash_destroy(bgp
);
3256 /* release the auto RD id */
3257 bf_release_index(bm
->rd_idspace
, bgp
->vrf_rd_id
);
3259 bgp_evpn_cleanup(bgp
);
3260 bgp_pbr_cleanup(bgp
);
3262 for (afi
= AFI_IP
; afi
< AFI_MAX
; afi
++) {
3263 vpn_policy_direction_t dir
;
3265 if (bgp
->vpn_policy
[afi
].import_vrf
)
3266 list_delete_and_null(&bgp
->vpn_policy
[afi
].import_vrf
);
3267 if (bgp
->vpn_policy
[afi
].export_vrf
)
3268 list_delete_and_null(&bgp
->vpn_policy
[afi
].export_vrf
);
3270 dir
= BGP_VPN_POLICY_DIR_FROMVPN
;
3271 if (bgp
->vpn_policy
[afi
].rtlist
[dir
])
3272 ecommunity_free(&bgp
->vpn_policy
[afi
].rtlist
[dir
]);
3273 dir
= BGP_VPN_POLICY_DIR_TOVPN
;
3274 if (bgp
->vpn_policy
[afi
].rtlist
[dir
])
3275 ecommunity_free(&bgp
->vpn_policy
[afi
].rtlist
[dir
]);
3279 XFREE(MTYPE_BGP
, bgp
->name
);
3280 if (bgp
->name_pretty
)
3281 XFREE(MTYPE_BGP
, bgp
->name_pretty
);
3283 XFREE(MTYPE_BGP
, bgp
);
3286 struct peer
*peer_lookup_by_conf_if(struct bgp
*bgp
, const char *conf_if
)
3289 struct listnode
*node
, *nnode
;
3295 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
))
3296 if (peer
->conf_if
&& !strcmp(peer
->conf_if
, conf_if
)
3297 && !CHECK_FLAG(peer
->sflags
,
3298 PEER_STATUS_ACCEPT_PEER
))
3300 } else if (bm
->bgp
!= NULL
) {
3301 struct listnode
*bgpnode
, *nbgpnode
;
3303 for (ALL_LIST_ELEMENTS(bm
->bgp
, bgpnode
, nbgpnode
, bgp
))
3304 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
))
3306 && !strcmp(peer
->conf_if
, conf_if
)
3307 && !CHECK_FLAG(peer
->sflags
,
3308 PEER_STATUS_ACCEPT_PEER
))
3314 struct peer
*peer_lookup_by_hostname(struct bgp
*bgp
, const char *hostname
)
3317 struct listnode
*node
, *nnode
;
3323 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
))
3324 if (peer
->hostname
&& !strcmp(peer
->hostname
, hostname
)
3325 && !CHECK_FLAG(peer
->sflags
,
3326 PEER_STATUS_ACCEPT_PEER
))
3328 } else if (bm
->bgp
!= NULL
) {
3329 struct listnode
*bgpnode
, *nbgpnode
;
3331 for (ALL_LIST_ELEMENTS(bm
->bgp
, bgpnode
, nbgpnode
, bgp
))
3332 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
))
3334 && !strcmp(peer
->hostname
, hostname
)
3335 && !CHECK_FLAG(peer
->sflags
,
3336 PEER_STATUS_ACCEPT_PEER
))
3342 struct peer
*peer_lookup(struct bgp
*bgp
, union sockunion
*su
)
3344 struct peer
*peer
= NULL
;
3345 struct peer tmp_peer
;
3347 memset(&tmp_peer
, 0, sizeof(struct peer
));
3350 * We do not want to find the doppelganger peer so search for the peer
3352 * the hash that has PEER_FLAG_CONFIG_NODE
3354 SET_FLAG(tmp_peer
.flags
, PEER_FLAG_CONFIG_NODE
);
3359 peer
= hash_lookup(bgp
->peerhash
, &tmp_peer
);
3360 } else if (bm
->bgp
!= NULL
) {
3361 struct listnode
*bgpnode
, *nbgpnode
;
3363 for (ALL_LIST_ELEMENTS(bm
->bgp
, bgpnode
, nbgpnode
, bgp
)) {
3364 peer
= hash_lookup(bgp
->peerhash
, &tmp_peer
);
3373 struct peer
*peer_create_bind_dynamic_neighbor(struct bgp
*bgp
,
3374 union sockunion
*su
,
3375 struct peer_group
*group
)
3381 /* Create peer first; we've already checked group config is valid. */
3382 peer
= peer_create(su
, NULL
, bgp
, bgp
->as
, group
->conf
->as
,
3383 group
->conf
->as_type
, 0, 0, group
);
3388 peer
= peer_lock(peer
);
3389 listnode_add(group
->peer
, peer
);
3391 peer_group2peer_config_copy(group
, peer
);
3394 * Bind peer for all AFs configured for the group. We don't call
3395 * peer_group_bind as that is sub-optimal and does some stuff we don't
3398 FOREACH_AFI_SAFI (afi
, safi
) {
3399 if (!group
->conf
->afc
[afi
][safi
])
3401 peer
->afc
[afi
][safi
] = 1;
3403 if (!peer_af_find(peer
, afi
, safi
))
3404 peer_af_create(peer
, afi
, safi
);
3406 peer_group2peer_config_copy_af(group
, peer
, afi
, safi
);
3409 /* Mark as dynamic, but also as a "config node" for other things to
3411 SET_FLAG(peer
->flags
, PEER_FLAG_DYNAMIC_NEIGHBOR
);
3412 SET_FLAG(peer
->flags
, PEER_FLAG_CONFIG_NODE
);
3418 peer_group_lookup_dynamic_neighbor_range(struct peer_group
*group
,
3419 struct prefix
*prefix
)
3421 struct listnode
*node
, *nnode
;
3422 struct prefix
*range
;
3425 afi
= family2afi(prefix
->family
);
3427 if (group
->listen_range
[afi
])
3428 for (ALL_LIST_ELEMENTS(group
->listen_range
[afi
], node
, nnode
,
3430 if (prefix_match(range
, prefix
))
3437 peer_group_lookup_dynamic_neighbor(struct bgp
*bgp
, struct prefix
*prefix
,
3438 struct prefix
**listen_range
)
3440 struct prefix
*range
= NULL
;
3441 struct peer_group
*group
= NULL
;
3442 struct listnode
*node
, *nnode
;
3444 *listen_range
= NULL
;
3446 for (ALL_LIST_ELEMENTS(bgp
->group
, node
, nnode
, group
))
3447 if ((range
= peer_group_lookup_dynamic_neighbor_range(
3450 } else if (bm
->bgp
!= NULL
) {
3451 struct listnode
*bgpnode
, *nbgpnode
;
3453 for (ALL_LIST_ELEMENTS(bm
->bgp
, bgpnode
, nbgpnode
, bgp
))
3454 for (ALL_LIST_ELEMENTS(bgp
->group
, node
, nnode
, group
))
3455 if ((range
= peer_group_lookup_dynamic_neighbor_range(
3461 *listen_range
= range
;
3462 return (group
&& range
) ? group
: NULL
;
3465 struct peer
*peer_lookup_dynamic_neighbor(struct bgp
*bgp
, union sockunion
*su
)
3467 struct peer_group
*group
;
3470 struct prefix prefix
;
3471 struct prefix
*listen_range
;
3473 char buf
[PREFIX2STR_BUFFER
];
3474 char buf1
[PREFIX2STR_BUFFER
];
3476 sockunion2hostprefix(su
, &prefix
);
3478 /* See if incoming connection matches a configured listen range. */
3479 group
= peer_group_lookup_dynamic_neighbor(bgp
, &prefix
, &listen_range
);
3490 prefix2str(&prefix
, buf
, sizeof(buf
));
3491 prefix2str(listen_range
, buf1
, sizeof(buf1
));
3493 if (bgp_debug_neighbor_events(NULL
))
3495 "Dynamic Neighbor %s matches group %s listen range %s",
3496 buf
, group
->name
, buf1
);
3498 /* Are we within the listen limit? */
3499 dncount
= gbgp
->dynamic_neighbors_count
;
3501 if (dncount
>= gbgp
->dynamic_neighbors_limit
) {
3502 if (bgp_debug_neighbor_events(NULL
))
3503 zlog_debug("Dynamic Neighbor %s rejected - at limit %d",
3504 inet_sutop(su
, buf
),
3505 gbgp
->dynamic_neighbors_limit
);
3509 /* Ensure group is not disabled. */
3510 if (CHECK_FLAG(group
->conf
->flags
, PEER_FLAG_SHUTDOWN
)) {
3511 if (bgp_debug_neighbor_events(NULL
))
3513 "Dynamic Neighbor %s rejected - group %s disabled",
3518 /* Check that at least one AF is activated for the group. */
3519 if (!peer_group_af_configured(group
)) {
3520 if (bgp_debug_neighbor_events(NULL
))
3522 "Dynamic Neighbor %s rejected - no AF activated for group %s",
3527 /* Create dynamic peer and bind to associated group. */
3528 peer
= peer_create_bind_dynamic_neighbor(gbgp
, su
, group
);
3531 gbgp
->dynamic_neighbors_count
= ++dncount
;
3533 if (bgp_debug_neighbor_events(peer
))
3534 zlog_debug("%s Dynamic Neighbor added, group %s count %d",
3535 peer
->host
, group
->name
, dncount
);
3540 static void peer_drop_dynamic_neighbor(struct peer
*peer
)
3543 if (peer
->group
->bgp
) {
3544 dncount
= peer
->group
->bgp
->dynamic_neighbors_count
;
3546 peer
->group
->bgp
->dynamic_neighbors_count
= --dncount
;
3548 if (bgp_debug_neighbor_events(peer
))
3549 zlog_debug("%s dropped from group %s, count %d", peer
->host
,
3550 peer
->group
->name
, dncount
);
3553 /* If peer is configured at least one address family return 1. */
3554 int peer_active(struct peer
*peer
)
3556 if (BGP_PEER_SU_UNSPEC(peer
))
3558 if (peer
->afc
[AFI_IP
][SAFI_UNICAST
] || peer
->afc
[AFI_IP
][SAFI_MULTICAST
]
3559 || peer
->afc
[AFI_IP
][SAFI_LABELED_UNICAST
]
3560 || peer
->afc
[AFI_IP
][SAFI_MPLS_VPN
] || peer
->afc
[AFI_IP
][SAFI_ENCAP
]
3561 || peer
->afc
[AFI_IP
][SAFI_FLOWSPEC
]
3562 || peer
->afc
[AFI_IP6
][SAFI_UNICAST
]
3563 || peer
->afc
[AFI_IP6
][SAFI_MULTICAST
]
3564 || peer
->afc
[AFI_IP6
][SAFI_LABELED_UNICAST
]
3565 || peer
->afc
[AFI_IP6
][SAFI_MPLS_VPN
]
3566 || peer
->afc
[AFI_IP6
][SAFI_ENCAP
]
3567 || peer
->afc
[AFI_IP6
][SAFI_FLOWSPEC
]
3568 || peer
->afc
[AFI_L2VPN
][SAFI_EVPN
])
3573 /* If peer is negotiated at least one address family return 1. */
3574 int peer_active_nego(struct peer
*peer
)
3576 if (peer
->afc_nego
[AFI_IP
][SAFI_UNICAST
]
3577 || peer
->afc_nego
[AFI_IP
][SAFI_MULTICAST
]
3578 || peer
->afc_nego
[AFI_IP
][SAFI_LABELED_UNICAST
]
3579 || peer
->afc_nego
[AFI_IP
][SAFI_MPLS_VPN
]
3580 || peer
->afc_nego
[AFI_IP
][SAFI_ENCAP
]
3581 || peer
->afc_nego
[AFI_IP
][SAFI_FLOWSPEC
]
3582 || peer
->afc_nego
[AFI_IP6
][SAFI_UNICAST
]
3583 || peer
->afc_nego
[AFI_IP6
][SAFI_MULTICAST
]
3584 || peer
->afc_nego
[AFI_IP6
][SAFI_LABELED_UNICAST
]
3585 || peer
->afc_nego
[AFI_IP6
][SAFI_MPLS_VPN
]
3586 || peer
->afc_nego
[AFI_IP6
][SAFI_ENCAP
]
3587 || peer
->afc_nego
[AFI_IP6
][SAFI_FLOWSPEC
]
3588 || peer
->afc_nego
[AFI_L2VPN
][SAFI_EVPN
])
3593 /* peer_flag_change_type. */
3594 enum peer_change_type
{
3597 peer_change_reset_in
,
3598 peer_change_reset_out
,
3601 static void peer_change_action(struct peer
*peer
, afi_t afi
, safi_t safi
,
3602 enum peer_change_type type
)
3604 if (CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
))
3607 if (peer
->status
!= Established
)
3610 if (type
== peer_change_reset
) {
3611 /* If we're resetting session, we've to delete both peer struct
3613 if ((peer
->doppelganger
)
3614 && (peer
->doppelganger
->status
!= Deleted
)
3615 && (!CHECK_FLAG(peer
->doppelganger
->flags
,
3616 PEER_FLAG_CONFIG_NODE
)))
3617 peer_delete(peer
->doppelganger
);
3619 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
3620 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
3621 } else if (type
== peer_change_reset_in
) {
3622 if (CHECK_FLAG(peer
->cap
, PEER_CAP_REFRESH_OLD_RCV
)
3623 || CHECK_FLAG(peer
->cap
, PEER_CAP_REFRESH_NEW_RCV
))
3624 bgp_route_refresh_send(peer
, afi
, safi
, 0, 0, 0);
3626 if ((peer
->doppelganger
)
3627 && (peer
->doppelganger
->status
!= Deleted
)
3628 && (!CHECK_FLAG(peer
->doppelganger
->flags
,
3629 PEER_FLAG_CONFIG_NODE
)))
3630 peer_delete(peer
->doppelganger
);
3632 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
3633 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
3635 } else if (type
== peer_change_reset_out
) {
3636 update_group_adjust_peer(peer_af_find(peer
, afi
, safi
));
3637 bgp_announce_route(peer
, afi
, safi
);
3641 struct peer_flag_action
{
3645 /* This flag can be set for peer-group member. */
3646 uint8_t not_for_member
;
3648 /* Action when the flag is changed. */
3649 enum peer_change_type type
;
3652 static const struct peer_flag_action peer_flag_action_list
[] = {
3653 {PEER_FLAG_PASSIVE
, 0, peer_change_reset
},
3654 {PEER_FLAG_SHUTDOWN
, 0, peer_change_reset
},
3655 {PEER_FLAG_DONT_CAPABILITY
, 0, peer_change_none
},
3656 {PEER_FLAG_OVERRIDE_CAPABILITY
, 0, peer_change_none
},
3657 {PEER_FLAG_STRICT_CAP_MATCH
, 0, peer_change_none
},
3658 {PEER_FLAG_DYNAMIC_CAPABILITY
, 0, peer_change_reset
},
3659 {PEER_FLAG_DISABLE_CONNECTED_CHECK
, 0, peer_change_reset
},
3660 {PEER_FLAG_CAPABILITY_ENHE
, 0, peer_change_reset
},
3661 {PEER_FLAG_ENFORCE_FIRST_AS
, 0, peer_change_reset_in
},
3662 {PEER_FLAG_ROUTEADV
, 0, peer_change_none
},
3663 {PEER_FLAG_TIMER
, 0, peer_change_none
},
3664 {PEER_FLAG_TIMER_CONNECT
, 0, peer_change_none
},
3665 {PEER_FLAG_PASSWORD
, 0, peer_change_none
},
3666 {PEER_FLAG_LOCAL_AS
, 0, peer_change_none
},
3667 {PEER_FLAG_LOCAL_AS_NO_PREPEND
, 0, peer_change_none
},
3668 {PEER_FLAG_LOCAL_AS_REPLACE_AS
, 0, peer_change_none
},
3669 {PEER_FLAG_UPDATE_SOURCE
, 0, peer_change_none
},
3672 static const struct peer_flag_action peer_af_flag_action_list
[] = {
3673 {PEER_FLAG_SEND_COMMUNITY
, 1, peer_change_reset_out
},
3674 {PEER_FLAG_SEND_EXT_COMMUNITY
, 1, peer_change_reset_out
},
3675 {PEER_FLAG_SEND_LARGE_COMMUNITY
, 1, peer_change_reset_out
},
3676 {PEER_FLAG_NEXTHOP_SELF
, 1, peer_change_reset_out
},
3677 {PEER_FLAG_REFLECTOR_CLIENT
, 1, peer_change_reset
},
3678 {PEER_FLAG_RSERVER_CLIENT
, 1, peer_change_reset
},
3679 {PEER_FLAG_SOFT_RECONFIG
, 0, peer_change_reset_in
},
3680 {PEER_FLAG_AS_PATH_UNCHANGED
, 1, peer_change_reset_out
},
3681 {PEER_FLAG_NEXTHOP_UNCHANGED
, 1, peer_change_reset_out
},
3682 {PEER_FLAG_MED_UNCHANGED
, 1, peer_change_reset_out
},
3683 {PEER_FLAG_DEFAULT_ORIGINATE
, 0, peer_change_none
},
3684 {PEER_FLAG_REMOVE_PRIVATE_AS
, 1, peer_change_reset_out
},
3685 {PEER_FLAG_ALLOWAS_IN
, 0, peer_change_reset_in
},
3686 {PEER_FLAG_ALLOWAS_IN_ORIGIN
, 0, peer_change_reset_in
},
3687 {PEER_FLAG_ORF_PREFIX_SM
, 1, peer_change_reset
},
3688 {PEER_FLAG_ORF_PREFIX_RM
, 1, peer_change_reset
},
3689 {PEER_FLAG_MAX_PREFIX
, 0, peer_change_none
},
3690 {PEER_FLAG_MAX_PREFIX_WARNING
, 0, peer_change_none
},
3691 {PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED
, 0, peer_change_reset_out
},
3692 {PEER_FLAG_FORCE_NEXTHOP_SELF
, 1, peer_change_reset_out
},
3693 {PEER_FLAG_REMOVE_PRIVATE_AS_ALL
, 1, peer_change_reset_out
},
3694 {PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE
, 1, peer_change_reset_out
},
3695 {PEER_FLAG_AS_OVERRIDE
, 1, peer_change_reset_out
},
3696 {PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE
, 1, peer_change_reset_out
},
3697 {PEER_FLAG_ADDPATH_TX_ALL_PATHS
, 1, peer_change_reset
},
3698 {PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS
, 1, peer_change_reset
},
3699 {PEER_FLAG_WEIGHT
, 0, peer_change_reset_in
},
3702 /* Proper action set. */
3703 static int peer_flag_action_set(const struct peer_flag_action
*action_list
,
3704 int size
, struct peer_flag_action
*action
,
3711 const struct peer_flag_action
*match
= NULL
;
3713 /* Check peer's frag action. */
3714 for (i
= 0; i
< size
; i
++) {
3715 match
= &action_list
[i
];
3717 if (match
->flag
== 0)
3720 if (match
->flag
& flag
) {
3723 if (match
->type
== peer_change_reset_in
)
3725 if (match
->type
== peer_change_reset_out
)
3727 if (match
->type
== peer_change_reset
) {
3731 if (match
->not_for_member
)
3732 action
->not_for_member
= 1;
3736 /* Set peer clear type. */
3737 if (reset_in
&& reset_out
)
3738 action
->type
= peer_change_reset
;
3740 action
->type
= peer_change_reset_in
;
3742 action
->type
= peer_change_reset_out
;
3744 action
->type
= peer_change_none
;
3749 static void peer_flag_modify_action(struct peer
*peer
, uint32_t flag
)
3751 if (flag
== PEER_FLAG_SHUTDOWN
) {
3752 if (CHECK_FLAG(peer
->flags
, flag
)) {
3753 if (CHECK_FLAG(peer
->sflags
, PEER_STATUS_NSF_WAIT
))
3754 peer_nsf_stop(peer
);
3756 UNSET_FLAG(peer
->sflags
, PEER_STATUS_PREFIX_OVERFLOW
);
3757 if (peer
->t_pmax_restart
) {
3758 BGP_TIMER_OFF(peer
->t_pmax_restart
);
3759 if (bgp_debug_neighbor_events(peer
))
3761 "%s Maximum-prefix restart timer canceled",
3765 if (CHECK_FLAG(peer
->sflags
, PEER_STATUS_NSF_WAIT
))
3766 peer_nsf_stop(peer
);
3768 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
)) {
3769 char *msg
= peer
->tx_shutdown_message
;
3772 if (!msg
&& peer_group_active(peer
))
3773 msg
= peer
->group
->conf
3774 ->tx_shutdown_message
;
3775 msglen
= msg
? strlen(msg
) : 0;
3780 uint8_t msgbuf
[129];
3783 memcpy(msgbuf
+ 1, msg
, msglen
);
3785 bgp_notify_send_with_data(
3786 peer
, BGP_NOTIFY_CEASE
,
3787 BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN
,
3788 msgbuf
, msglen
+ 1);
3791 peer
, BGP_NOTIFY_CEASE
,
3792 BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN
);
3794 bgp_session_reset(peer
);
3796 peer
->v_start
= BGP_INIT_START_TIMER
;
3797 BGP_EVENT_ADD(peer
, BGP_Stop
);
3799 } else if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
)) {
3800 if (flag
== PEER_FLAG_DYNAMIC_CAPABILITY
)
3801 peer
->last_reset
= PEER_DOWN_CAPABILITY_CHANGE
;
3802 else if (flag
== PEER_FLAG_PASSIVE
)
3803 peer
->last_reset
= PEER_DOWN_PASSIVE_CHANGE
;
3804 else if (flag
== PEER_FLAG_DISABLE_CONNECTED_CHECK
)
3805 peer
->last_reset
= PEER_DOWN_MULTIHOP_CHANGE
;
3807 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
3808 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
3810 bgp_session_reset(peer
);
3813 /* Change specified peer flag. */
3814 static int peer_flag_modify(struct peer
*peer
, uint32_t flag
, int set
)
3818 bool invert
, member_invert
;
3819 struct peer
*member
;
3820 struct listnode
*node
, *nnode
;
3821 struct peer_flag_action action
;
3823 memset(&action
, 0, sizeof(struct peer_flag_action
));
3824 size
= sizeof peer_flag_action_list
/ sizeof(struct peer_flag_action
);
3826 invert
= CHECK_FLAG(peer
->flags_invert
, flag
);
3827 found
= peer_flag_action_set(peer_flag_action_list
, size
, &action
,
3830 /* Abort if no flag action exists. */
3832 return BGP_ERR_INVALID_FLAG
;
3834 /* Check for flag conflict: STRICT_CAP_MATCH && OVERRIDE_CAPABILITY */
3835 if (set
&& CHECK_FLAG(peer
->flags
| flag
, PEER_FLAG_STRICT_CAP_MATCH
)
3836 && CHECK_FLAG(peer
->flags
| flag
, PEER_FLAG_OVERRIDE_CAPABILITY
))
3837 return BGP_ERR_PEER_FLAG_CONFLICT
;
3839 /* Handle flag updates where desired state matches current state. */
3840 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
3841 if (set
&& CHECK_FLAG(peer
->flags
, flag
)) {
3842 COND_FLAG(peer
->flags_override
, flag
, !invert
);
3846 if (!set
&& !CHECK_FLAG(peer
->flags
, flag
)) {
3847 COND_FLAG(peer
->flags_override
, flag
, invert
);
3852 /* Inherit from peer-group or set/unset flags accordingly. */
3853 if (peer_group_active(peer
) && set
== invert
)
3854 peer_flag_inherit(peer
, flag
);
3856 COND_FLAG(peer
->flags
, flag
, set
);
3858 /* Check if handling a regular peer. */
3859 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
3860 /* Update flag override state accordingly. */
3861 COND_FLAG(peer
->flags_override
, flag
, set
!= invert
);
3863 /* Execute flag action on peer. */
3864 if (action
.type
== peer_change_reset
)
3865 peer_flag_modify_action(peer
, flag
);
3867 /* Skip peer-group mechanics for regular peers. */
3872 * Update peer-group members, unless they are explicitely overriding
3873 * peer-group configuration.
3875 for (ALL_LIST_ELEMENTS(peer
->group
->peer
, node
, nnode
, member
)) {
3876 /* Skip peers with overridden configuration. */
3877 if (CHECK_FLAG(member
->flags_override
, flag
))
3880 /* Check if only member without group is inverted. */
3882 CHECK_FLAG(member
->flags_invert
, flag
) && !invert
;
3884 /* Skip peers with equivalent configuration. */
3885 if (set
!= member_invert
&& CHECK_FLAG(member
->flags
, flag
))
3888 if (set
== member_invert
&& !CHECK_FLAG(member
->flags
, flag
))
3891 /* Update flag on peer-group member. */
3892 COND_FLAG(member
->flags
, flag
, set
!= member_invert
);
3894 /* Execute flag action on peer-group member. */
3895 if (action
.type
== peer_change_reset
)
3896 peer_flag_modify_action(member
, flag
);
3902 int peer_flag_set(struct peer
*peer
, uint32_t flag
)
3904 return peer_flag_modify(peer
, flag
, 1);
3907 int peer_flag_unset(struct peer
*peer
, uint32_t flag
)
3909 return peer_flag_modify(peer
, flag
, 0);
3912 static int peer_af_flag_modify(struct peer
*peer
, afi_t afi
, safi_t safi
,
3913 uint32_t flag
, bool set
)
3917 int addpath_tx_used
;
3918 bool invert
, member_invert
;
3920 struct peer
*member
;
3921 struct listnode
*node
, *nnode
;
3922 struct peer_flag_action action
;
3924 memset(&action
, 0, sizeof(struct peer_flag_action
));
3925 size
= sizeof peer_af_flag_action_list
3926 / sizeof(struct peer_flag_action
);
3928 invert
= CHECK_FLAG(peer
->af_flags_invert
[afi
][safi
], flag
);
3929 found
= peer_flag_action_set(peer_af_flag_action_list
, size
, &action
,
3932 /* Abort if flag action exists. */
3934 return BGP_ERR_INVALID_FLAG
;
3936 /* Special check for reflector client. */
3937 if (flag
& PEER_FLAG_REFLECTOR_CLIENT
3938 && peer_sort(peer
) != BGP_PEER_IBGP
)
3939 return BGP_ERR_NOT_INTERNAL_PEER
;
3941 /* Special check for remove-private-AS. */
3942 if (flag
& PEER_FLAG_REMOVE_PRIVATE_AS
3943 && peer_sort(peer
) == BGP_PEER_IBGP
)
3944 return BGP_ERR_REMOVE_PRIVATE_AS
;
3946 /* as-override is not allowed for IBGP peers */
3947 if (flag
& PEER_FLAG_AS_OVERRIDE
&& peer_sort(peer
) == BGP_PEER_IBGP
)
3948 return BGP_ERR_AS_OVERRIDE
;
3950 /* Handle flag updates where desired state matches current state. */
3951 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
3952 if (set
&& CHECK_FLAG(peer
->af_flags
[afi
][safi
], flag
)) {
3953 COND_FLAG(peer
->af_flags_override
[afi
][safi
], flag
,
3958 if (!set
&& !CHECK_FLAG(peer
->af_flags
[afi
][safi
], flag
)) {
3959 COND_FLAG(peer
->af_flags_override
[afi
][safi
], flag
,
3966 * For EVPN we implicitly set the NEXTHOP_UNCHANGED flag,
3967 * if we are setting/unsetting flags which conflict with this flag
3968 * handle accordingly
3970 if (afi
== AFI_L2VPN
&& safi
== SAFI_EVPN
) {
3974 * if we are setting NEXTHOP_SELF, we need to unset the
3975 * NEXTHOP_UNCHANGED flag
3977 if (CHECK_FLAG(flag
, PEER_FLAG_NEXTHOP_SELF
) ||
3978 CHECK_FLAG(flag
, PEER_FLAG_FORCE_NEXTHOP_SELF
))
3979 UNSET_FLAG(peer
->af_flags
[afi
][safi
],
3980 PEER_FLAG_NEXTHOP_UNCHANGED
);
3984 * if we are unsetting NEXTHOP_SELF, we need to set the
3985 * NEXTHOP_UNCHANGED flag to reset the defaults for EVPN
3987 if (CHECK_FLAG(flag
, PEER_FLAG_NEXTHOP_SELF
) ||
3988 CHECK_FLAG(flag
, PEER_FLAG_FORCE_NEXTHOP_SELF
))
3989 SET_FLAG(peer
->af_flags
[afi
][safi
],
3990 PEER_FLAG_NEXTHOP_UNCHANGED
);
3994 /* Inherit from peer-group or set/unset flags accordingly. */
3995 if (peer_group_active(peer
) && set
== invert
)
3996 peer_af_flag_inherit(peer
, afi
, safi
, flag
);
3998 COND_FLAG(peer
->af_flags
[afi
][safi
], flag
, set
);
4000 /* Execute action when peer is established. */
4001 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)
4002 && peer
->status
== Established
) {
4003 if (!set
&& flag
== PEER_FLAG_SOFT_RECONFIG
)
4004 bgp_clear_adj_in(peer
, afi
, safi
);
4006 if (flag
== PEER_FLAG_REFLECTOR_CLIENT
)
4007 peer
->last_reset
= PEER_DOWN_RR_CLIENT_CHANGE
;
4008 else if (flag
== PEER_FLAG_RSERVER_CLIENT
)
4009 peer
->last_reset
= PEER_DOWN_RS_CLIENT_CHANGE
;
4010 else if (flag
== PEER_FLAG_ORF_PREFIX_SM
)
4011 peer
->last_reset
= PEER_DOWN_CAPABILITY_CHANGE
;
4012 else if (flag
== PEER_FLAG_ORF_PREFIX_RM
)
4013 peer
->last_reset
= PEER_DOWN_CAPABILITY_CHANGE
;
4015 peer_change_action(peer
, afi
, safi
, action
.type
);
4019 /* Check if handling a regular peer. */
4020 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
4021 COND_FLAG(peer
->af_flags_override
[afi
][safi
], flag
,
4025 * Update peer-group members, unless they are explicitely
4026 * overriding peer-group configuration.
4028 for (ALL_LIST_ELEMENTS(peer
->group
->peer
, node
, nnode
,
4030 /* Skip peers with overridden configuration. */
4031 if (CHECK_FLAG(member
->af_flags_override
[afi
][safi
],
4035 /* Check if only member without group is inverted. */
4037 CHECK_FLAG(member
->af_flags_invert
[afi
][safi
],
4041 /* Skip peers with equivalent configuration. */
4042 if (set
!= member_invert
4043 && CHECK_FLAG(member
->af_flags
[afi
][safi
], flag
))
4046 if (set
== member_invert
4047 && !CHECK_FLAG(member
->af_flags
[afi
][safi
], flag
))
4050 /* Update flag on peer-group member. */
4051 COND_FLAG(member
->af_flags
[afi
][safi
], flag
,
4052 set
!= member_invert
);
4054 /* Execute flag action on peer-group member. */
4055 if (member
->status
== Established
) {
4056 if (!set
&& flag
== PEER_FLAG_SOFT_RECONFIG
)
4057 bgp_clear_adj_in(member
, afi
, safi
);
4059 if (flag
== PEER_FLAG_REFLECTOR_CLIENT
)
4060 member
->last_reset
=
4061 PEER_DOWN_RR_CLIENT_CHANGE
;
4063 == PEER_FLAG_RSERVER_CLIENT
)
4064 member
->last_reset
=
4065 PEER_DOWN_RS_CLIENT_CHANGE
;
4067 == PEER_FLAG_ORF_PREFIX_SM
)
4068 member
->last_reset
=
4069 PEER_DOWN_CAPABILITY_CHANGE
;
4071 == PEER_FLAG_ORF_PREFIX_RM
)
4072 member
->last_reset
=
4073 PEER_DOWN_CAPABILITY_CHANGE
;
4075 peer_change_action(member
, afi
, safi
,
4082 /* Track if addpath TX is in use */
4083 if (flag
& (PEER_FLAG_ADDPATH_TX_ALL_PATHS
4084 | PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS
)) {
4086 addpath_tx_used
= 0;
4089 addpath_tx_used
= 1;
4091 if (flag
& PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS
) {
4092 if (!bgp_flag_check(
4093 bgp
, BGP_FLAG_DETERMINISTIC_MED
)) {
4095 "%s: enabling bgp deterministic-med, this is required"
4096 " for addpath-tx-bestpath-per-AS",
4100 BGP_FLAG_DETERMINISTIC_MED
);
4101 bgp_recalculate_all_bestpaths(bgp
);
4105 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
,
4107 if (CHECK_FLAG(member
->af_flags
[afi
][safi
],
4108 PEER_FLAG_ADDPATH_TX_ALL_PATHS
)
4110 member
->af_flags
[afi
][safi
],
4111 PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS
)) {
4112 addpath_tx_used
= 1;
4118 bgp
->addpath_tx_used
[afi
][safi
] = addpath_tx_used
;
4124 int peer_af_flag_set(struct peer
*peer
, afi_t afi
, safi_t safi
, uint32_t flag
)
4126 return peer_af_flag_modify(peer
, afi
, safi
, flag
, 1);
4129 int peer_af_flag_unset(struct peer
*peer
, afi_t afi
, safi_t safi
, uint32_t flag
)
4131 return peer_af_flag_modify(peer
, afi
, safi
, flag
, 0);
4135 int peer_tx_shutdown_message_set(struct peer
*peer
, const char *msg
)
4137 XFREE(MTYPE_PEER_TX_SHUTDOWN_MSG
, peer
->tx_shutdown_message
);
4138 peer
->tx_shutdown_message
=
4139 msg
? XSTRDUP(MTYPE_PEER_TX_SHUTDOWN_MSG
, msg
) : NULL
;
4143 int peer_tx_shutdown_message_unset(struct peer
*peer
)
4145 XFREE(MTYPE_PEER_TX_SHUTDOWN_MSG
, peer
->tx_shutdown_message
);
4150 /* EBGP multihop configuration. */
4151 int peer_ebgp_multihop_set(struct peer
*peer
, int ttl
)
4153 struct peer_group
*group
;
4154 struct listnode
*node
, *nnode
;
4157 if (peer
->sort
== BGP_PEER_IBGP
|| peer
->conf_if
)
4160 /* see comment in peer_ttl_security_hops_set() */
4161 if (ttl
!= MAXTTL
) {
4162 if (CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
4163 group
= peer
->group
;
4164 if (group
->conf
->gtsm_hops
!= 0)
4165 return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK
;
4167 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
,
4169 if (peer1
->sort
== BGP_PEER_IBGP
)
4172 if (peer1
->gtsm_hops
!= 0)
4173 return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK
;
4176 if (peer
->gtsm_hops
!= 0)
4177 return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK
;
4183 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
4184 if (peer
->fd
>= 0 && peer
->sort
!= BGP_PEER_IBGP
) {
4185 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
))
4186 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
4187 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
4189 bgp_session_reset(peer
);
4192 group
= peer
->group
;
4193 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer
)) {
4194 if (peer
->sort
== BGP_PEER_IBGP
)
4197 peer
->ttl
= group
->conf
->ttl
;
4199 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
))
4200 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
4201 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
4203 bgp_session_reset(peer
);
4209 int peer_ebgp_multihop_unset(struct peer
*peer
)
4211 struct peer_group
*group
;
4212 struct listnode
*node
, *nnode
;
4214 if (peer
->sort
== BGP_PEER_IBGP
)
4217 if (peer
->gtsm_hops
!= 0 && peer
->ttl
!= MAXTTL
)
4218 return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK
;
4220 if (peer_group_active(peer
))
4221 peer
->ttl
= peer
->group
->conf
->ttl
;
4225 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
4226 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
))
4227 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
4228 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
4230 bgp_session_reset(peer
);
4232 group
= peer
->group
;
4233 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer
)) {
4234 if (peer
->sort
== BGP_PEER_IBGP
)
4239 if (peer
->fd
>= 0) {
4240 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
))
4242 peer
, BGP_NOTIFY_CEASE
,
4243 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
4245 bgp_session_reset(peer
);
4252 /* Neighbor description. */
4253 int peer_description_set(struct peer
*peer
, const char *desc
)
4256 XFREE(MTYPE_PEER_DESC
, peer
->desc
);
4258 peer
->desc
= XSTRDUP(MTYPE_PEER_DESC
, desc
);
4263 int peer_description_unset(struct peer
*peer
)
4266 XFREE(MTYPE_PEER_DESC
, peer
->desc
);
4273 /* Neighbor update-source. */
4274 int peer_update_source_if_set(struct peer
*peer
, const char *ifname
)
4276 struct peer
*member
;
4277 struct listnode
*node
, *nnode
;
4279 /* Set flag and configuration on peer. */
4280 peer_flag_set(peer
, PEER_FLAG_UPDATE_SOURCE
);
4281 if (peer
->update_if
) {
4282 if (strcmp(peer
->update_if
, ifname
) == 0)
4284 XFREE(MTYPE_PEER_UPDATE_SOURCE
, peer
->update_if
);
4286 peer
->update_if
= XSTRDUP(MTYPE_PEER_UPDATE_SOURCE
, ifname
);
4287 sockunion_free(peer
->update_source
);
4288 peer
->update_source
= NULL
;
4290 /* Check if handling a regular peer. */
4291 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
4292 /* Send notification or reset peer depending on state. */
4293 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
)) {
4294 peer
->last_reset
= PEER_DOWN_UPDATE_SOURCE_CHANGE
;
4295 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
4296 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
4298 bgp_session_reset(peer
);
4300 /* Skip peer-group mechanics for regular peers. */
4305 * Set flag and configuration on all peer-group members, unless they are
4306 * explicitely overriding peer-group configuration.
4308 for (ALL_LIST_ELEMENTS(peer
->group
->peer
, node
, nnode
, member
)) {
4309 /* Skip peers with overridden configuration. */
4310 if (CHECK_FLAG(member
->flags_override
, PEER_FLAG_UPDATE_SOURCE
))
4313 /* Skip peers with the same configuration. */
4314 if (member
->update_if
) {
4315 if (strcmp(member
->update_if
, ifname
) == 0)
4317 XFREE(MTYPE_PEER_UPDATE_SOURCE
, member
->update_if
);
4320 /* Set flag and configuration on peer-group member. */
4321 SET_FLAG(member
->flags
, PEER_FLAG_UPDATE_SOURCE
);
4322 member
->update_if
= XSTRDUP(MTYPE_PEER_UPDATE_SOURCE
, ifname
);
4323 sockunion_free(member
->update_source
);
4324 member
->update_source
= NULL
;
4326 /* Send notification or reset peer depending on state. */
4327 if (BGP_IS_VALID_STATE_FOR_NOTIF(member
->status
)) {
4328 member
->last_reset
= PEER_DOWN_UPDATE_SOURCE_CHANGE
;
4329 bgp_notify_send(member
, BGP_NOTIFY_CEASE
,
4330 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
4332 bgp_session_reset(member
);
4338 int peer_update_source_addr_set(struct peer
*peer
, const union sockunion
*su
)
4340 struct peer
*member
;
4341 struct listnode
*node
, *nnode
;
4343 /* Set flag and configuration on peer. */
4344 peer_flag_set(peer
, PEER_FLAG_UPDATE_SOURCE
);
4345 if (peer
->update_source
) {
4346 if (sockunion_cmp(peer
->update_source
, su
) == 0)
4348 sockunion_free(peer
->update_source
);
4350 peer
->update_source
= sockunion_dup(su
);
4351 XFREE(MTYPE_PEER_UPDATE_SOURCE
, peer
->update_if
);
4353 /* Check if handling a regular peer. */
4354 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
4355 /* Send notification or reset peer depending on state. */
4356 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
)) {
4357 peer
->last_reset
= PEER_DOWN_UPDATE_SOURCE_CHANGE
;
4358 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
4359 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
4361 bgp_session_reset(peer
);
4363 /* Skip peer-group mechanics for regular peers. */
4368 * Set flag and configuration on all peer-group members, unless they are
4369 * explicitely overriding peer-group configuration.
4371 for (ALL_LIST_ELEMENTS(peer
->group
->peer
, node
, nnode
, member
)) {
4372 /* Skip peers with overridden configuration. */
4373 if (CHECK_FLAG(member
->flags_override
, PEER_FLAG_UPDATE_SOURCE
))
4376 /* Skip peers with the same configuration. */
4377 if (member
->update_source
) {
4378 if (sockunion_cmp(member
->update_source
, su
) == 0)
4380 sockunion_free(member
->update_source
);
4383 /* Set flag and configuration on peer-group member. */
4384 SET_FLAG(member
->flags
, PEER_FLAG_UPDATE_SOURCE
);
4385 member
->update_source
= sockunion_dup(su
);
4386 XFREE(MTYPE_PEER_UPDATE_SOURCE
, member
->update_if
);
4388 /* Send notification or reset peer depending on state. */
4389 if (BGP_IS_VALID_STATE_FOR_NOTIF(member
->status
)) {
4390 member
->last_reset
= PEER_DOWN_UPDATE_SOURCE_CHANGE
;
4391 bgp_notify_send(member
, BGP_NOTIFY_CEASE
,
4392 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
4394 bgp_session_reset(member
);
4400 int peer_update_source_unset(struct peer
*peer
)
4402 struct peer
*member
;
4403 struct listnode
*node
, *nnode
;
4405 if (!CHECK_FLAG(peer
->flags
, PEER_FLAG_UPDATE_SOURCE
))
4408 /* Inherit configuration from peer-group if peer is member. */
4409 if (peer_group_active(peer
)) {
4410 peer_flag_inherit(peer
, PEER_FLAG_UPDATE_SOURCE
);
4411 PEER_SU_ATTR_INHERIT(peer
, peer
->group
, update_source
);
4412 PEER_STR_ATTR_INHERIT(peer
, peer
->group
, update_if
,
4413 MTYPE_PEER_UPDATE_SOURCE
);
4415 /* Otherwise remove flag and configuration from peer. */
4416 peer_flag_unset(peer
, PEER_FLAG_UPDATE_SOURCE
);
4417 sockunion_free(peer
->update_source
);
4418 peer
->update_source
= NULL
;
4419 XFREE(MTYPE_PEER_UPDATE_SOURCE
, peer
->update_if
);
4422 /* Check if handling a regular peer. */
4423 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
4424 /* Send notification or reset peer depending on state. */
4425 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
)) {
4426 peer
->last_reset
= PEER_DOWN_UPDATE_SOURCE_CHANGE
;
4427 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
4428 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
4430 bgp_session_reset(peer
);
4432 /* Skip peer-group mechanics for regular peers. */
4437 * Set flag and configuration on all peer-group members, unless they are
4438 * explicitely overriding peer-group configuration.
4440 for (ALL_LIST_ELEMENTS(peer
->group
->peer
, node
, nnode
, member
)) {
4441 /* Skip peers with overridden configuration. */
4442 if (CHECK_FLAG(member
->flags_override
, PEER_FLAG_UPDATE_SOURCE
))
4445 /* Skip peers with the same configuration. */
4446 if (!CHECK_FLAG(member
->flags
, PEER_FLAG_UPDATE_SOURCE
)
4447 && !member
->update_source
&& !member
->update_if
)
4450 /* Remove flag and configuration on peer-group member. */
4451 UNSET_FLAG(member
->flags
, PEER_FLAG_UPDATE_SOURCE
);
4452 sockunion_free(member
->update_source
);
4453 member
->update_source
= NULL
;
4454 XFREE(MTYPE_PEER_UPDATE_SOURCE
, member
->update_if
);
4456 /* Send notification or reset peer depending on state. */
4457 if (BGP_IS_VALID_STATE_FOR_NOTIF(member
->status
)) {
4458 member
->last_reset
= PEER_DOWN_UPDATE_SOURCE_CHANGE
;
4459 bgp_notify_send(member
, BGP_NOTIFY_CEASE
,
4460 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
4462 bgp_session_reset(member
);
4468 int peer_default_originate_set(struct peer
*peer
, afi_t afi
, safi_t safi
,
4471 struct peer
*member
;
4472 struct listnode
*node
, *nnode
;
4474 /* Set flag and configuration on peer. */
4475 peer_af_flag_set(peer
, afi
, safi
, PEER_FLAG_DEFAULT_ORIGINATE
);
4477 if (!peer
->default_rmap
[afi
][safi
].name
4478 || strcmp(rmap
, peer
->default_rmap
[afi
][safi
].name
) != 0) {
4479 if (peer
->default_rmap
[afi
][safi
].name
)
4480 XFREE(MTYPE_ROUTE_MAP_NAME
,
4481 peer
->default_rmap
[afi
][safi
].name
);
4483 peer
->default_rmap
[afi
][safi
].name
=
4484 XSTRDUP(MTYPE_ROUTE_MAP_NAME
, rmap
);
4485 peer
->default_rmap
[afi
][safi
].map
=
4486 route_map_lookup_by_name(rmap
);
4489 if (peer
->default_rmap
[afi
][safi
].name
)
4490 XFREE(MTYPE_ROUTE_MAP_NAME
,
4491 peer
->default_rmap
[afi
][safi
].name
);
4493 peer
->default_rmap
[afi
][safi
].name
= NULL
;
4494 peer
->default_rmap
[afi
][safi
].map
= NULL
;
4497 /* Check if handling a regular peer. */
4498 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
4499 /* Update peer route announcements. */
4500 if (peer
->status
== Established
&& peer
->afc_nego
[afi
][safi
]) {
4501 update_group_adjust_peer(peer_af_find(peer
, afi
, safi
));
4502 bgp_default_originate(peer
, afi
, safi
, 0);
4503 bgp_announce_route(peer
, afi
, safi
);
4506 /* Skip peer-group mechanics for regular peers. */
4511 * Set flag and configuration on all peer-group members, unless they are
4512 * explicitely overriding peer-group configuration.
4514 for (ALL_LIST_ELEMENTS(peer
->group
->peer
, node
, nnode
, member
)) {
4515 /* Skip peers with overridden configuration. */
4516 if (CHECK_FLAG(member
->af_flags_override
[afi
][safi
],
4517 PEER_FLAG_DEFAULT_ORIGINATE
))
4520 /* Set flag and configuration on peer-group member. */
4521 SET_FLAG(member
->af_flags
[afi
][safi
],
4522 PEER_FLAG_DEFAULT_ORIGINATE
);
4524 if (member
->default_rmap
[afi
][safi
].name
)
4525 XFREE(MTYPE_ROUTE_MAP_NAME
,
4526 member
->default_rmap
[afi
][safi
].name
);
4528 member
->default_rmap
[afi
][safi
].name
=
4529 XSTRDUP(MTYPE_ROUTE_MAP_NAME
, rmap
);
4530 member
->default_rmap
[afi
][safi
].map
=
4531 route_map_lookup_by_name(rmap
);
4534 /* Update peer route announcements. */
4535 if (member
->status
== Established
4536 && member
->afc_nego
[afi
][safi
]) {
4537 update_group_adjust_peer(
4538 peer_af_find(member
, afi
, safi
));
4539 bgp_default_originate(member
, afi
, safi
, 0);
4540 bgp_announce_route(member
, afi
, safi
);
4547 int peer_default_originate_unset(struct peer
*peer
, afi_t afi
, safi_t safi
)
4549 struct peer
*member
;
4550 struct listnode
*node
, *nnode
;
4552 /* Inherit configuration from peer-group if peer is member. */
4553 if (peer_group_active(peer
)) {
4554 peer_af_flag_inherit(peer
, afi
, safi
,
4555 PEER_FLAG_DEFAULT_ORIGINATE
);
4556 PEER_STR_ATTR_INHERIT(peer
, peer
->group
,
4557 default_rmap
[afi
][safi
].name
,
4558 MTYPE_ROUTE_MAP_NAME
);
4559 PEER_ATTR_INHERIT(peer
, peer
->group
,
4560 default_rmap
[afi
][safi
].map
);
4562 /* Otherwise remove flag and configuration from peer. */
4563 peer_af_flag_unset(peer
, afi
, safi
,
4564 PEER_FLAG_DEFAULT_ORIGINATE
);
4565 if (peer
->default_rmap
[afi
][safi
].name
)
4566 XFREE(MTYPE_ROUTE_MAP_NAME
,
4567 peer
->default_rmap
[afi
][safi
].name
);
4568 peer
->default_rmap
[afi
][safi
].name
= NULL
;
4569 peer
->default_rmap
[afi
][safi
].map
= NULL
;
4572 /* Check if handling a regular peer. */
4573 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
4574 /* Update peer route announcements. */
4575 if (peer
->status
== Established
&& peer
->afc_nego
[afi
][safi
]) {
4576 update_group_adjust_peer(peer_af_find(peer
, afi
, safi
));
4577 bgp_default_originate(peer
, afi
, safi
, 1);
4578 bgp_announce_route(peer
, afi
, safi
);
4581 /* Skip peer-group mechanics for regular peers. */
4586 * Remove flag and configuration from all peer-group members, unless
4587 * they are explicitely overriding peer-group configuration.
4589 for (ALL_LIST_ELEMENTS(peer
->group
->peer
, node
, nnode
, member
)) {
4590 /* Skip peers with overridden configuration. */
4591 if (CHECK_FLAG(member
->af_flags_override
[afi
][safi
],
4592 PEER_FLAG_DEFAULT_ORIGINATE
))
4595 /* Remove flag and configuration on peer-group member. */
4596 UNSET_FLAG(peer
->af_flags
[afi
][safi
],
4597 PEER_FLAG_DEFAULT_ORIGINATE
);
4598 if (peer
->default_rmap
[afi
][safi
].name
)
4599 XFREE(MTYPE_ROUTE_MAP_NAME
,
4600 peer
->default_rmap
[afi
][safi
].name
);
4601 peer
->default_rmap
[afi
][safi
].name
= NULL
;
4602 peer
->default_rmap
[afi
][safi
].map
= NULL
;
4604 /* Update peer route announcements. */
4605 if (peer
->status
== Established
&& peer
->afc_nego
[afi
][safi
]) {
4606 update_group_adjust_peer(peer_af_find(peer
, afi
, safi
));
4607 bgp_default_originate(peer
, afi
, safi
, 1);
4608 bgp_announce_route(peer
, afi
, safi
);
4615 int peer_port_set(struct peer
*peer
, uint16_t port
)
4621 int peer_port_unset(struct peer
*peer
)
4623 peer
->port
= BGP_PORT_DEFAULT
;
4628 * Helper function that is called after the name of the policy
4629 * being used by a peer has changed (AF specific). Automatically
4630 * initiates inbound or outbound processing as needed.
4632 static void peer_on_policy_change(struct peer
*peer
, afi_t afi
, safi_t safi
,
4636 update_group_adjust_peer(peer_af_find(peer
, afi
, safi
));
4637 if (peer
->status
== Established
)
4638 bgp_announce_route(peer
, afi
, safi
);
4640 if (peer
->status
!= Established
)
4643 if (CHECK_FLAG(peer
->af_flags
[afi
][safi
],
4644 PEER_FLAG_SOFT_RECONFIG
))
4645 bgp_soft_reconfig_in(peer
, afi
, safi
);
4646 else if (CHECK_FLAG(peer
->cap
, PEER_CAP_REFRESH_OLD_RCV
)
4647 || CHECK_FLAG(peer
->cap
, PEER_CAP_REFRESH_NEW_RCV
))
4648 bgp_route_refresh_send(peer
, afi
, safi
, 0, 0, 0);
4653 /* neighbor weight. */
4654 int peer_weight_set(struct peer
*peer
, afi_t afi
, safi_t safi
, uint16_t weight
)
4656 struct peer
*member
;
4657 struct listnode
*node
, *nnode
;
4659 /* Set flag and configuration on peer. */
4660 peer_af_flag_set(peer
, afi
, safi
, PEER_FLAG_WEIGHT
);
4661 if (peer
->weight
[afi
][safi
] != weight
) {
4662 peer
->weight
[afi
][safi
] = weight
;
4663 peer_on_policy_change(peer
, afi
, safi
, 0);
4666 /* Skip peer-group mechanics for regular peers. */
4667 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
))
4671 * Set flag and configuration on all peer-group members, unless they are
4672 * explicitely overriding peer-group configuration.
4674 for (ALL_LIST_ELEMENTS(peer
->group
->peer
, node
, nnode
, member
)) {
4675 /* Skip peers with overridden configuration. */
4676 if (CHECK_FLAG(member
->af_flags_override
[afi
][safi
],
4680 /* Set flag and configuration on peer-group member. */
4681 SET_FLAG(member
->af_flags
[afi
][safi
], PEER_FLAG_WEIGHT
);
4682 if (member
->weight
[afi
][safi
] != weight
) {
4683 member
->weight
[afi
][safi
] = weight
;
4684 peer_on_policy_change(member
, afi
, safi
, 0);
4691 int peer_weight_unset(struct peer
*peer
, afi_t afi
, safi_t safi
)
4693 struct peer
*member
;
4694 struct listnode
*node
, *nnode
;
4696 if (!CHECK_FLAG(peer
->af_flags
[afi
][safi
], PEER_FLAG_WEIGHT
))
4699 /* Inherit configuration from peer-group if peer is member. */
4700 if (peer_group_active(peer
)) {
4701 peer_af_flag_inherit(peer
, afi
, safi
, PEER_FLAG_WEIGHT
);
4702 PEER_ATTR_INHERIT(peer
, peer
->group
, weight
[afi
][safi
]);
4704 peer_on_policy_change(peer
, afi
, safi
, 0);
4708 /* Remove flag and configuration from peer. */
4709 peer_af_flag_unset(peer
, afi
, safi
, PEER_FLAG_WEIGHT
);
4710 peer
->weight
[afi
][safi
] = 0;
4711 peer_on_policy_change(peer
, afi
, safi
, 0);
4713 /* Skip peer-group mechanics for regular peers. */
4714 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
))
4718 * Remove flag and configuration from all peer-group members, unless
4719 * they are explicitely overriding peer-group configuration.
4721 for (ALL_LIST_ELEMENTS(peer
->group
->peer
, node
, nnode
, member
)) {
4722 /* Skip peers with overridden configuration. */
4723 if (CHECK_FLAG(member
->af_flags_override
[afi
][safi
],
4727 /* Skip peers where flag is already disabled. */
4728 if (!CHECK_FLAG(member
->af_flags
[afi
][safi
], PEER_FLAG_WEIGHT
))
4731 /* Remove flag and configuration on peer-group member. */
4732 UNSET_FLAG(member
->af_flags
[afi
][safi
], PEER_FLAG_WEIGHT
);
4733 member
->weight
[afi
][safi
] = 0;
4734 peer_on_policy_change(member
, afi
, safi
, 0);
4740 int peer_timers_set(struct peer
*peer
, uint32_t keepalive
, uint32_t holdtime
)
4742 struct peer
*member
;
4743 struct listnode
*node
, *nnode
;
4745 if (keepalive
> 65535)
4746 return BGP_ERR_INVALID_VALUE
;
4748 if (holdtime
> 65535)
4749 return BGP_ERR_INVALID_VALUE
;
4751 if (holdtime
< 3 && holdtime
!= 0)
4752 return BGP_ERR_INVALID_VALUE
;
4754 /* Set flag and configuration on peer. */
4755 peer_flag_set(peer
, PEER_FLAG_TIMER
);
4756 peer
->holdtime
= holdtime
;
4757 peer
->keepalive
= (keepalive
< holdtime
/ 3 ? keepalive
: holdtime
/ 3);
4759 /* Skip peer-group mechanics for regular peers. */
4760 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
))
4764 * Set flag and configuration on all peer-group members, unless they are
4765 * explicitely overriding peer-group configuration.
4767 for (ALL_LIST_ELEMENTS(peer
->group
->peer
, node
, nnode
, member
)) {
4768 /* Skip peers with overridden configuration. */
4769 if (CHECK_FLAG(member
->flags_override
, PEER_FLAG_TIMER
))
4772 /* Set flag and configuration on peer-group member. */
4773 SET_FLAG(member
->flags
, PEER_FLAG_TIMER
);
4774 PEER_ATTR_INHERIT(peer
, peer
->group
, holdtime
);
4775 PEER_ATTR_INHERIT(peer
, peer
->group
, keepalive
);
4781 int peer_timers_unset(struct peer
*peer
)
4783 struct peer
*member
;
4784 struct listnode
*node
, *nnode
;
4786 /* Inherit configuration from peer-group if peer is member. */
4787 if (peer_group_active(peer
)) {
4788 peer_flag_inherit(peer
, PEER_FLAG_TIMER
);
4789 PEER_ATTR_INHERIT(peer
, peer
->group
, holdtime
);
4790 PEER_ATTR_INHERIT(peer
, peer
->group
, keepalive
);
4792 /* Otherwise remove flag and configuration from peer. */
4793 peer_flag_unset(peer
, PEER_FLAG_TIMER
);
4795 peer
->keepalive
= 0;
4798 /* Skip peer-group mechanics for regular peers. */
4799 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
))
4803 * Remove flag and configuration from all peer-group members, unless
4804 * they are explicitely overriding peer-group configuration.
4806 for (ALL_LIST_ELEMENTS(peer
->group
->peer
, node
, nnode
, member
)) {
4807 /* Skip peers with overridden configuration. */
4808 if (CHECK_FLAG(member
->flags_override
, PEER_FLAG_TIMER
))
4811 /* Remove flag and configuration on peer-group member. */
4812 UNSET_FLAG(member
->flags
, PEER_FLAG_TIMER
);
4813 member
->holdtime
= 0;
4814 member
->keepalive
= 0;
4820 int peer_timers_connect_set(struct peer
*peer
, uint32_t connect
)
4822 struct peer
*member
;
4823 struct listnode
*node
, *nnode
;
4825 if (connect
> 65535)
4826 return BGP_ERR_INVALID_VALUE
;
4828 /* Set flag and configuration on peer. */
4829 peer_flag_set(peer
, PEER_FLAG_TIMER_CONNECT
);
4830 peer
->connect
= connect
;
4831 peer
->v_connect
= connect
;
4833 /* Skip peer-group mechanics for regular peers. */
4834 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
))
4838 * Set flag and configuration on all peer-group members, unless they are
4839 * explicitely overriding peer-group configuration.
4841 for (ALL_LIST_ELEMENTS(peer
->group
->peer
, node
, nnode
, member
)) {
4842 /* Skip peers with overridden configuration. */
4843 if (CHECK_FLAG(member
->flags_override
, PEER_FLAG_TIMER_CONNECT
))
4846 /* Set flag and configuration on peer-group member. */
4847 SET_FLAG(member
->flags
, PEER_FLAG_TIMER_CONNECT
);
4848 member
->connect
= connect
;
4849 member
->v_connect
= connect
;
4855 int peer_timers_connect_unset(struct peer
*peer
)
4857 struct peer
*member
;
4858 struct listnode
*node
, *nnode
;
4860 /* Inherit configuration from peer-group if peer is member. */
4861 if (peer_group_active(peer
)) {
4862 peer_flag_inherit(peer
, PEER_FLAG_TIMER_CONNECT
);
4863 PEER_ATTR_INHERIT(peer
, peer
->group
, connect
);
4865 /* Otherwise remove flag and configuration from peer. */
4866 peer_flag_unset(peer
, PEER_FLAG_TIMER_CONNECT
);
4870 /* Set timer with fallback to default value. */
4872 peer
->v_connect
= peer
->connect
;
4874 peer
->v_connect
= BGP_DEFAULT_CONNECT_RETRY
;
4876 /* Skip peer-group mechanics for regular peers. */
4877 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
))
4881 * Remove flag and configuration from all peer-group members, unless
4882 * they are explicitely overriding peer-group configuration.
4884 for (ALL_LIST_ELEMENTS(peer
->group
->peer
, node
, nnode
, member
)) {
4885 /* Skip peers with overridden configuration. */
4886 if (CHECK_FLAG(member
->flags_override
, PEER_FLAG_TIMER_CONNECT
))
4889 /* Remove flag and configuration on peer-group member. */
4890 UNSET_FLAG(member
->flags
, PEER_FLAG_TIMER_CONNECT
);
4891 member
->connect
= 0;
4892 member
->v_connect
= BGP_DEFAULT_CONNECT_RETRY
;
4898 int peer_advertise_interval_set(struct peer
*peer
, uint32_t routeadv
)
4900 struct peer
*member
;
4901 struct listnode
*node
, *nnode
;
4904 return BGP_ERR_INVALID_VALUE
;
4906 /* Set flag and configuration on peer. */
4907 peer_flag_set(peer
, PEER_FLAG_ROUTEADV
);
4908 peer
->routeadv
= routeadv
;
4909 peer
->v_routeadv
= routeadv
;
4911 /* Check if handling a regular peer. */
4912 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
4913 /* Update peer route announcements. */
4914 update_group_adjust_peer_afs(peer
);
4915 if (peer
->status
== Established
)
4916 bgp_announce_route_all(peer
);
4918 /* Skip peer-group mechanics for regular peers. */
4923 * Set flag and configuration on all peer-group members, unless they are
4924 * explicitely overriding peer-group configuration.
4926 for (ALL_LIST_ELEMENTS(peer
->group
->peer
, node
, nnode
, member
)) {
4927 /* Skip peers with overridden configuration. */
4928 if (CHECK_FLAG(member
->flags_override
, PEER_FLAG_ROUTEADV
))
4931 /* Set flag and configuration on peer-group member. */
4932 SET_FLAG(member
->flags
, PEER_FLAG_ROUTEADV
);
4933 member
->routeadv
= routeadv
;
4934 member
->v_routeadv
= routeadv
;
4936 /* Update peer route announcements. */
4937 update_group_adjust_peer_afs(member
);
4938 if (member
->status
== Established
)
4939 bgp_announce_route_all(member
);
4945 int peer_advertise_interval_unset(struct peer
*peer
)
4947 struct peer
*member
;
4948 struct listnode
*node
, *nnode
;
4950 /* Inherit configuration from peer-group if peer is member. */
4951 if (peer_group_active(peer
)) {
4952 peer_flag_inherit(peer
, PEER_FLAG_ROUTEADV
);
4953 PEER_ATTR_INHERIT(peer
, peer
->group
, routeadv
);
4955 /* Otherwise remove flag and configuration from peer. */
4956 peer_flag_unset(peer
, PEER_FLAG_ROUTEADV
);
4960 /* Set timer with fallback to default value. */
4962 peer
->v_routeadv
= peer
->routeadv
;
4964 peer
->v_routeadv
= (peer
->sort
== BGP_PEER_IBGP
)
4965 ? BGP_DEFAULT_IBGP_ROUTEADV
4966 : BGP_DEFAULT_EBGP_ROUTEADV
;
4968 /* Check if handling a regular peer. */
4969 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
4970 /* Update peer route announcements. */
4971 update_group_adjust_peer_afs(peer
);
4972 if (peer
->status
== Established
)
4973 bgp_announce_route_all(peer
);
4975 /* Skip peer-group mechanics for regular peers. */
4980 * Remove flag and configuration from all peer-group members, unless
4981 * they are explicitely overriding peer-group configuration.
4983 for (ALL_LIST_ELEMENTS(peer
->group
->peer
, node
, nnode
, member
)) {
4984 /* Skip peers with overridden configuration. */
4985 if (CHECK_FLAG(member
->flags_override
, PEER_FLAG_ROUTEADV
))
4988 /* Remove flag and configuration on peer-group member. */
4989 UNSET_FLAG(member
->flags
, PEER_FLAG_ROUTEADV
);
4990 member
->routeadv
= 0;
4991 member
->v_routeadv
= (member
->sort
== BGP_PEER_IBGP
)
4992 ? BGP_DEFAULT_IBGP_ROUTEADV
4993 : BGP_DEFAULT_EBGP_ROUTEADV
;
4995 /* Update peer route announcements. */
4996 update_group_adjust_peer_afs(member
);
4997 if (member
->status
== Established
)
4998 bgp_announce_route_all(member
);
5004 /* neighbor interface */
5005 void peer_interface_set(struct peer
*peer
, const char *str
)
5008 XFREE(MTYPE_BGP_PEER_IFNAME
, peer
->ifname
);
5009 peer
->ifname
= XSTRDUP(MTYPE_BGP_PEER_IFNAME
, str
);
5012 void peer_interface_unset(struct peer
*peer
)
5015 XFREE(MTYPE_BGP_PEER_IFNAME
, peer
->ifname
);
5016 peer
->ifname
= NULL
;
5020 int peer_allowas_in_set(struct peer
*peer
, afi_t afi
, safi_t safi
,
5021 int allow_num
, int origin
)
5023 struct peer
*member
;
5024 struct listnode
*node
, *nnode
;
5026 if (!origin
&& (allow_num
< 1 || allow_num
> 10))
5027 return BGP_ERR_INVALID_VALUE
;
5029 /* Set flag and configuration on peer. */
5030 peer_af_flag_set(peer
, afi
, safi
, PEER_FLAG_ALLOWAS_IN
);
5032 if (peer
->allowas_in
[afi
][safi
] != 0
5033 || !CHECK_FLAG(peer
->af_flags
[afi
][safi
],
5034 PEER_FLAG_ALLOWAS_IN_ORIGIN
)) {
5035 peer_af_flag_set(peer
, afi
, safi
,
5036 PEER_FLAG_ALLOWAS_IN_ORIGIN
);
5037 peer
->allowas_in
[afi
][safi
] = 0;
5038 peer_on_policy_change(peer
, afi
, safi
, 0);
5041 if (peer
->allowas_in
[afi
][safi
] != allow_num
5042 || CHECK_FLAG(peer
->af_flags
[afi
][safi
],
5043 PEER_FLAG_ALLOWAS_IN_ORIGIN
)) {
5045 peer_af_flag_unset(peer
, afi
, safi
,
5046 PEER_FLAG_ALLOWAS_IN_ORIGIN
);
5047 peer
->allowas_in
[afi
][safi
] = allow_num
;
5048 peer_on_policy_change(peer
, afi
, safi
, 0);
5052 /* Skip peer-group mechanics for regular peers. */
5053 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
))
5057 * Set flag and configuration on all peer-group members, unless
5058 * they are explicitely overriding peer-group configuration.
5060 for (ALL_LIST_ELEMENTS(peer
->group
->peer
, node
, nnode
, member
)) {
5061 /* Skip peers with overridden configuration. */
5062 if (CHECK_FLAG(member
->af_flags_override
[afi
][safi
],
5063 PEER_FLAG_ALLOWAS_IN
))
5066 /* Set flag and configuration on peer-group member. */
5067 SET_FLAG(member
->af_flags
[afi
][safi
], PEER_FLAG_ALLOWAS_IN
);
5069 if (member
->allowas_in
[afi
][safi
] != 0
5070 || !CHECK_FLAG(member
->af_flags
[afi
][safi
],
5071 PEER_FLAG_ALLOWAS_IN_ORIGIN
)) {
5072 SET_FLAG(member
->af_flags
[afi
][safi
],
5073 PEER_FLAG_ALLOWAS_IN_ORIGIN
);
5074 member
->allowas_in
[afi
][safi
] = 0;
5075 peer_on_policy_change(peer
, afi
, safi
, 0);
5078 if (member
->allowas_in
[afi
][safi
] != allow_num
5079 || CHECK_FLAG(member
->af_flags
[afi
][safi
],
5080 PEER_FLAG_ALLOWAS_IN_ORIGIN
)) {
5081 UNSET_FLAG(member
->af_flags
[afi
][safi
],
5082 PEER_FLAG_ALLOWAS_IN_ORIGIN
);
5083 member
->allowas_in
[afi
][safi
] = allow_num
;
5084 peer_on_policy_change(peer
, afi
, safi
, 0);
5092 int peer_allowas_in_unset(struct peer
*peer
, afi_t afi
, safi_t safi
)
5094 struct peer
*member
;
5095 struct listnode
*node
, *nnode
;
5097 /* Skip peer if flag is already disabled. */
5098 if (!CHECK_FLAG(peer
->af_flags
[afi
][safi
], PEER_FLAG_ALLOWAS_IN
))
5101 /* Inherit configuration from peer-group if peer is member. */
5102 if (peer_group_active(peer
)) {
5103 peer_af_flag_inherit(peer
, afi
, safi
, PEER_FLAG_ALLOWAS_IN
);
5104 peer_af_flag_inherit(peer
, afi
, safi
,
5105 PEER_FLAG_ALLOWAS_IN_ORIGIN
);
5106 PEER_ATTR_INHERIT(peer
, peer
->group
, allowas_in
[afi
][safi
]);
5107 peer_on_policy_change(peer
, afi
, safi
, 0);
5112 /* Remove flag and configuration from peer. */
5113 peer_af_flag_unset(peer
, afi
, safi
, PEER_FLAG_ALLOWAS_IN
);
5114 peer_af_flag_unset(peer
, afi
, safi
, PEER_FLAG_ALLOWAS_IN_ORIGIN
);
5115 peer
->allowas_in
[afi
][safi
] = 0;
5116 peer_on_policy_change(peer
, afi
, safi
, 0);
5118 /* Skip peer-group mechanics if handling a regular peer. */
5119 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
))
5123 * Remove flags and configuration from all peer-group members, unless
5124 * they are explicitely overriding peer-group configuration.
5126 for (ALL_LIST_ELEMENTS(peer
->group
->peer
, node
, nnode
, member
)) {
5127 /* Skip peers with overridden configuration. */
5128 if (CHECK_FLAG(member
->af_flags_override
[afi
][safi
],
5129 PEER_FLAG_ALLOWAS_IN
))
5132 /* Skip peers where flag is already disabled. */
5133 if (!CHECK_FLAG(member
->af_flags
[afi
][safi
],
5134 PEER_FLAG_ALLOWAS_IN
))
5137 /* Remove flags and configuration on peer-group member. */
5138 UNSET_FLAG(member
->af_flags
[afi
][safi
], PEER_FLAG_ALLOWAS_IN
);
5139 UNSET_FLAG(member
->af_flags
[afi
][safi
],
5140 PEER_FLAG_ALLOWAS_IN_ORIGIN
);
5141 member
->allowas_in
[afi
][safi
] = 0;
5142 peer_on_policy_change(member
, afi
, safi
, 0);
5148 int peer_local_as_set(struct peer
*peer
, as_t as
, int no_prepend
,
5151 bool old_no_prepend
, old_replace_as
;
5152 struct bgp
*bgp
= peer
->bgp
;
5153 struct peer
*member
;
5154 struct listnode
*node
, *nnode
;
5156 if (peer_sort(peer
) != BGP_PEER_EBGP
5157 && peer_sort(peer
) != BGP_PEER_INTERNAL
)
5158 return BGP_ERR_LOCAL_AS_ALLOWED_ONLY_FOR_EBGP
;
5161 return BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS
;
5164 return BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS_REMOTE_AS
;
5166 /* Save previous flag states. */
5168 !!CHECK_FLAG(peer
->flags
, PEER_FLAG_LOCAL_AS_NO_PREPEND
);
5170 !!CHECK_FLAG(peer
->flags
, PEER_FLAG_LOCAL_AS_REPLACE_AS
);
5172 /* Set flag and configuration on peer. */
5173 peer_flag_set(peer
, PEER_FLAG_LOCAL_AS
);
5174 peer_flag_modify(peer
, PEER_FLAG_LOCAL_AS_NO_PREPEND
, no_prepend
);
5175 peer_flag_modify(peer
, PEER_FLAG_LOCAL_AS_REPLACE_AS
, replace_as
);
5177 if (peer
->change_local_as
== as
&& old_no_prepend
== no_prepend
5178 && old_replace_as
== replace_as
)
5180 peer
->change_local_as
= as
;
5182 /* Check if handling a regular peer. */
5183 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
5184 /* Send notification or reset peer depending on state. */
5185 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
)) {
5186 peer
->last_reset
= PEER_DOWN_LOCAL_AS_CHANGE
;
5187 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
5188 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
5190 bgp_session_reset(peer
);
5192 /* Skip peer-group mechanics for regular peers. */
5197 * Set flag and configuration on all peer-group members, unless they are
5198 * explicitely overriding peer-group configuration.
5200 for (ALL_LIST_ELEMENTS(peer
->group
->peer
, node
, nnode
, member
)) {
5201 /* Skip peers with overridden configuration. */
5202 if (CHECK_FLAG(member
->flags_override
, PEER_FLAG_LOCAL_AS
))
5205 /* Skip peers with the same configuration. */
5206 old_no_prepend
= CHECK_FLAG(member
->flags
,
5207 PEER_FLAG_LOCAL_AS_NO_PREPEND
);
5208 old_replace_as
= CHECK_FLAG(member
->flags
,
5209 PEER_FLAG_LOCAL_AS_REPLACE_AS
);
5210 if (member
->change_local_as
== as
5211 && CHECK_FLAG(member
->flags
, PEER_FLAG_LOCAL_AS
)
5212 && old_no_prepend
== no_prepend
5213 && old_replace_as
== replace_as
)
5216 /* Set flag and configuration on peer-group member. */
5217 SET_FLAG(member
->flags
, PEER_FLAG_LOCAL_AS
);
5218 COND_FLAG(member
->flags
, PEER_FLAG_LOCAL_AS_NO_PREPEND
,
5220 COND_FLAG(member
->flags
, PEER_FLAG_LOCAL_AS_REPLACE_AS
,
5222 member
->change_local_as
= as
;
5224 /* Send notification or stop peer depending on state. */
5225 if (BGP_IS_VALID_STATE_FOR_NOTIF(member
->status
)) {
5226 member
->last_reset
= PEER_DOWN_LOCAL_AS_CHANGE
;
5227 bgp_notify_send(member
, BGP_NOTIFY_CEASE
,
5228 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
5230 BGP_EVENT_ADD(member
, BGP_Stop
);
5236 int peer_local_as_unset(struct peer
*peer
)
5238 struct peer
*member
;
5239 struct listnode
*node
, *nnode
;
5241 if (!CHECK_FLAG(peer
->flags
, PEER_FLAG_LOCAL_AS
))
5244 /* Inherit configuration from peer-group if peer is member. */
5245 if (peer_group_active(peer
)) {
5246 peer_flag_inherit(peer
, PEER_FLAG_LOCAL_AS
);
5247 peer_flag_inherit(peer
, PEER_FLAG_LOCAL_AS_NO_PREPEND
);
5248 peer_flag_inherit(peer
, PEER_FLAG_LOCAL_AS_REPLACE_AS
);
5249 PEER_ATTR_INHERIT(peer
, peer
->group
, change_local_as
);
5251 /* Otherwise remove flag and configuration from peer. */
5252 peer_flag_unset(peer
, PEER_FLAG_LOCAL_AS
);
5253 peer_flag_unset(peer
, PEER_FLAG_LOCAL_AS_NO_PREPEND
);
5254 peer_flag_unset(peer
, PEER_FLAG_LOCAL_AS_REPLACE_AS
);
5255 peer
->change_local_as
= 0;
5258 /* Check if handling a regular peer. */
5259 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
5260 /* Send notification or stop peer depending on state. */
5261 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
)) {
5262 peer
->last_reset
= PEER_DOWN_LOCAL_AS_CHANGE
;
5263 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
5264 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
5266 BGP_EVENT_ADD(peer
, BGP_Stop
);
5268 /* Skip peer-group mechanics for regular peers. */
5273 * Remove flag and configuration from all peer-group members, unless
5274 * they are explicitely overriding peer-group configuration.
5276 for (ALL_LIST_ELEMENTS(peer
->group
->peer
, node
, nnode
, member
)) {
5277 /* Skip peers with overridden configuration. */
5278 if (CHECK_FLAG(member
->flags_override
, PEER_FLAG_LOCAL_AS
))
5281 /* Remove flag and configuration on peer-group member. */
5282 UNSET_FLAG(member
->flags
, PEER_FLAG_LOCAL_AS
);
5283 UNSET_FLAG(member
->flags
, PEER_FLAG_LOCAL_AS_NO_PREPEND
);
5284 UNSET_FLAG(member
->flags
, PEER_FLAG_LOCAL_AS_REPLACE_AS
);
5285 member
->change_local_as
= 0;
5287 /* Send notification or stop peer depending on state. */
5288 if (BGP_IS_VALID_STATE_FOR_NOTIF(member
->status
)) {
5289 member
->last_reset
= PEER_DOWN_LOCAL_AS_CHANGE
;
5290 bgp_notify_send(member
, BGP_NOTIFY_CEASE
,
5291 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
5293 bgp_session_reset(member
);
5299 /* Set password for authenticating with the peer. */
5300 int peer_password_set(struct peer
*peer
, const char *password
)
5302 struct peer
*member
;
5303 struct listnode
*node
, *nnode
;
5304 int len
= password
? strlen(password
) : 0;
5305 int ret
= BGP_SUCCESS
;
5307 if ((len
< PEER_PASSWORD_MINLEN
) || (len
> PEER_PASSWORD_MAXLEN
))
5308 return BGP_ERR_INVALID_VALUE
;
5310 /* Set flag and configuration on peer. */
5311 peer_flag_set(peer
, PEER_FLAG_PASSWORD
);
5312 if (peer
->password
&& strcmp(peer
->password
, password
) == 0)
5314 XFREE(MTYPE_PEER_PASSWORD
, peer
->password
);
5315 peer
->password
= XSTRDUP(MTYPE_PEER_PASSWORD
, password
);
5317 /* Check if handling a regular peer. */
5318 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
5319 /* Send notification or reset peer depending on state. */
5320 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
))
5321 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
5322 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
5324 bgp_session_reset(peer
);
5327 * Attempt to install password on socket and skip peer-group
5330 if (BGP_PEER_SU_UNSPEC(peer
))
5332 return (bgp_md5_set(peer
) >= 0) ? BGP_SUCCESS
5333 : BGP_ERR_TCPSIG_FAILED
;
5337 * Set flag and configuration on all peer-group members, unless they are
5338 * explicitely overriding peer-group configuration.
5340 for (ALL_LIST_ELEMENTS(peer
->group
->peer
, node
, nnode
, member
)) {
5341 /* Skip peers with overridden configuration. */
5342 if (CHECK_FLAG(member
->flags_override
, PEER_FLAG_PASSWORD
))
5345 /* Skip peers with the same password. */
5346 if (member
->password
&& strcmp(member
->password
, password
) == 0)
5349 /* Set flag and configuration on peer-group member. */
5350 SET_FLAG(member
->flags
, PEER_FLAG_PASSWORD
);
5351 if (member
->password
)
5352 XFREE(MTYPE_PEER_PASSWORD
, member
->password
);
5353 member
->password
= XSTRDUP(MTYPE_PEER_PASSWORD
, password
);
5355 /* Send notification or reset peer depending on state. */
5356 if (BGP_IS_VALID_STATE_FOR_NOTIF(member
->status
))
5357 bgp_notify_send(member
, BGP_NOTIFY_CEASE
,
5358 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
5360 bgp_session_reset(member
);
5362 /* Attempt to install password on socket. */
5363 if (!BGP_PEER_SU_UNSPEC(member
) && bgp_md5_set(member
) < 0)
5364 ret
= BGP_ERR_TCPSIG_FAILED
;
5370 int peer_password_unset(struct peer
*peer
)
5372 struct peer
*member
;
5373 struct listnode
*node
, *nnode
;
5375 if (!CHECK_FLAG(peer
->flags
, PEER_FLAG_PASSWORD
))
5378 /* Inherit configuration from peer-group if peer is member. */
5379 if (peer_group_active(peer
)) {
5380 peer_flag_inherit(peer
, PEER_FLAG_PASSWORD
);
5381 PEER_STR_ATTR_INHERIT(peer
, peer
->group
, password
,
5382 MTYPE_PEER_PASSWORD
);
5384 /* Otherwise remove flag and configuration from peer. */
5385 peer_flag_unset(peer
, PEER_FLAG_PASSWORD
);
5386 XFREE(MTYPE_PEER_PASSWORD
, peer
->password
);
5389 /* Check if handling a regular peer. */
5390 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
5391 /* Send notification or reset peer depending on state. */
5392 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
))
5393 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
5394 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
5396 bgp_session_reset(peer
);
5398 /* Attempt to uninstall password on socket. */
5399 if (!BGP_PEER_SU_UNSPEC(peer
))
5400 bgp_md5_unset(peer
);
5402 /* Skip peer-group mechanics for regular peers. */
5407 * Remove flag and configuration from all peer-group members, unless
5408 * they are explicitely overriding peer-group configuration.
5410 for (ALL_LIST_ELEMENTS(peer
->group
->peer
, node
, nnode
, member
)) {
5411 /* Skip peers with overridden configuration. */
5412 if (CHECK_FLAG(member
->flags_override
, PEER_FLAG_PASSWORD
))
5415 /* Remove flag and configuration on peer-group member. */
5416 UNSET_FLAG(member
->flags
, PEER_FLAG_PASSWORD
);
5417 XFREE(MTYPE_PEER_PASSWORD
, member
->password
);
5419 /* Send notification or reset peer depending on state. */
5420 if (BGP_IS_VALID_STATE_FOR_NOTIF(member
->status
))
5421 bgp_notify_send(member
, BGP_NOTIFY_CEASE
,
5422 BGP_NOTIFY_CEASE_CONFIG_CHANGE
);
5424 bgp_session_reset(member
);
5426 /* Attempt to uninstall password on socket. */
5427 if (!BGP_PEER_SU_UNSPEC(member
))
5428 bgp_md5_unset(member
);
5435 /* Set distribute list to the peer. */
5436 int peer_distribute_set(struct peer
*peer
, afi_t afi
, safi_t safi
, int direct
,
5439 struct peer
*member
;
5440 struct bgp_filter
*filter
;
5441 struct listnode
*node
, *nnode
;
5443 if (direct
!= FILTER_IN
&& direct
!= FILTER_OUT
)
5444 return BGP_ERR_INVALID_VALUE
;
5446 /* Set configuration on peer. */
5447 filter
= &peer
->filter
[afi
][safi
];
5448 if (filter
->plist
[direct
].name
)
5449 return BGP_ERR_PEER_FILTER_CONFLICT
;
5450 if (filter
->dlist
[direct
].name
)
5451 XFREE(MTYPE_BGP_FILTER_NAME
, filter
->dlist
[direct
].name
);
5452 filter
->dlist
[direct
].name
= XSTRDUP(MTYPE_BGP_FILTER_NAME
, name
);
5453 filter
->dlist
[direct
].alist
= access_list_lookup(afi
, name
);
5455 /* Check if handling a regular peer. */
5456 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
5457 /* Set override-flag and process peer route updates. */
5458 SET_FLAG(peer
->filter_override
[afi
][safi
][direct
],
5459 PEER_FT_DISTRIBUTE_LIST
);
5460 peer_on_policy_change(peer
, afi
, safi
,
5461 (direct
== FILTER_OUT
) ? 1 : 0);
5463 /* Skip peer-group mechanics for regular peers. */
5468 * Set configuration on all peer-group members, un less they are
5469 * explicitely overriding peer-group configuration.
5471 for (ALL_LIST_ELEMENTS(peer
->group
->peer
, node
, nnode
, member
)) {
5472 /* Skip peers with overridden configuration. */
5473 if (CHECK_FLAG(member
->filter_override
[afi
][safi
][direct
],
5474 PEER_FT_DISTRIBUTE_LIST
))
5477 /* Set configuration on peer-group member. */
5478 filter
= &member
->filter
[afi
][safi
];
5479 if (filter
->dlist
[direct
].name
)
5480 XFREE(MTYPE_BGP_FILTER_NAME
,
5481 filter
->dlist
[direct
].name
);
5482 filter
->dlist
[direct
].name
=
5483 XSTRDUP(MTYPE_BGP_FILTER_NAME
, name
);
5484 filter
->dlist
[direct
].alist
= access_list_lookup(afi
, name
);
5486 /* Process peer route updates. */
5487 peer_on_policy_change(member
, afi
, safi
,
5488 (direct
== FILTER_OUT
) ? 1 : 0);
5494 int peer_distribute_unset(struct peer
*peer
, afi_t afi
, safi_t safi
, int direct
)
5496 struct peer
*member
;
5497 struct bgp_filter
*filter
;
5498 struct listnode
*node
, *nnode
;
5500 if (direct
!= FILTER_IN
&& direct
!= FILTER_OUT
)
5501 return BGP_ERR_INVALID_VALUE
;
5503 /* Unset override-flag unconditionally. */
5504 UNSET_FLAG(peer
->filter_override
[afi
][safi
][direct
],
5505 PEER_FT_DISTRIBUTE_LIST
);
5507 /* Inherit configuration from peer-group if peer is member. */
5508 if (peer_group_active(peer
)) {
5509 PEER_STR_ATTR_INHERIT(peer
, peer
->group
,
5510 filter
[afi
][safi
].dlist
[direct
].name
,
5511 MTYPE_BGP_FILTER_NAME
);
5512 PEER_ATTR_INHERIT(peer
, peer
->group
,
5513 filter
[afi
][safi
].dlist
[direct
].alist
);
5515 /* Otherwise remove configuration from peer. */
5516 filter
= &peer
->filter
[afi
][safi
];
5517 if (filter
->dlist
[direct
].name
)
5518 XFREE(MTYPE_BGP_FILTER_NAME
,
5519 filter
->dlist
[direct
].name
);
5520 filter
->dlist
[direct
].name
= NULL
;
5521 filter
->dlist
[direct
].alist
= NULL
;
5524 /* Check if handling a regular peer. */
5525 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
5526 /* Process peer route updates. */
5527 peer_on_policy_change(peer
, afi
, safi
,
5528 (direct
== FILTER_OUT
) ? 1 : 0);
5530 /* Skip peer-group mechanics for regular peers. */
5535 * Remove configuration on all peer-group members, unless they are
5536 * explicitely overriding peer-group configuration.
5538 for (ALL_LIST_ELEMENTS(peer
->group
->peer
, node
, nnode
, member
)) {
5539 /* Skip peers with overridden configuration. */
5540 if (CHECK_FLAG(member
->filter_override
[afi
][safi
][direct
],
5541 PEER_FT_DISTRIBUTE_LIST
))
5544 /* Remove configuration on peer-group member. */
5545 filter
= &member
->filter
[afi
][safi
];
5546 if (filter
->dlist
[direct
].name
)
5547 XFREE(MTYPE_BGP_FILTER_NAME
,
5548 filter
->dlist
[direct
].name
);
5549 filter
->dlist
[direct
].name
= NULL
;
5550 filter
->dlist
[direct
].alist
= NULL
;
5552 /* Process peer route updates. */
5553 peer_on_policy_change(member
, afi
, safi
,
5554 (direct
== FILTER_OUT
) ? 1 : 0);
5560 /* Update distribute list. */
5561 static void peer_distribute_update(struct access_list
*access
)
5566 struct listnode
*mnode
, *mnnode
;
5567 struct listnode
*node
, *nnode
;
5570 struct peer_group
*group
;
5571 struct bgp_filter
*filter
;
5573 for (ALL_LIST_ELEMENTS(bm
->bgp
, mnode
, mnnode
, bgp
)) {
5575 update_group_policy_update(bgp
, BGP_POLICY_FILTER_LIST
,
5576 access
->name
, 0, 0);
5577 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
5578 FOREACH_AFI_SAFI (afi
, safi
) {
5579 filter
= &peer
->filter
[afi
][safi
];
5581 for (direct
= FILTER_IN
; direct
< FILTER_MAX
;
5583 if (filter
->dlist
[direct
].name
)
5584 filter
->dlist
[direct
]
5585 .alist
= access_list_lookup(
5587 filter
->dlist
[direct
]
5590 filter
->dlist
[direct
].alist
=
5595 for (ALL_LIST_ELEMENTS(bgp
->group
, node
, nnode
, group
)) {
5596 FOREACH_AFI_SAFI (afi
, safi
) {
5597 filter
= &group
->conf
->filter
[afi
][safi
];
5599 for (direct
= FILTER_IN
; direct
< FILTER_MAX
;
5601 if (filter
->dlist
[direct
].name
)
5602 filter
->dlist
[direct
]
5603 .alist
= access_list_lookup(
5605 filter
->dlist
[direct
]
5608 filter
->dlist
[direct
].alist
=
5614 vnc_prefix_list_update(bgp
);
5619 /* Set prefix list to the peer. */
5620 int peer_prefix_list_set(struct peer
*peer
, afi_t afi
, safi_t safi
, int direct
,
5623 struct peer
*member
;
5624 struct bgp_filter
*filter
;
5625 struct listnode
*node
, *nnode
;
5627 if (direct
!= FILTER_IN
&& direct
!= FILTER_OUT
)
5628 return BGP_ERR_INVALID_VALUE
;
5630 /* Set configuration on peer. */
5631 filter
= &peer
->filter
[afi
][safi
];
5632 if (filter
->dlist
[direct
].name
)
5633 return BGP_ERR_PEER_FILTER_CONFLICT
;
5634 if (filter
->plist
[direct
].name
)
5635 XFREE(MTYPE_BGP_FILTER_NAME
, filter
->plist
[direct
].name
);
5636 filter
->plist
[direct
].name
= XSTRDUP(MTYPE_BGP_FILTER_NAME
, name
);
5637 filter
->plist
[direct
].plist
= prefix_list_lookup(afi
, name
);
5639 /* Check if handling a regular peer. */
5640 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
5641 /* Set override-flag and process peer route updates. */
5642 SET_FLAG(peer
->filter_override
[afi
][safi
][direct
],
5643 PEER_FT_PREFIX_LIST
);
5644 peer_on_policy_change(peer
, afi
, safi
,
5645 (direct
== FILTER_OUT
) ? 1 : 0);
5647 /* Skip peer-group mechanics for regular peers. */
5652 * Set configuration on all peer-group members, unless they are
5653 * explicitely overriding peer-group configuration.
5655 for (ALL_LIST_ELEMENTS(peer
->group
->peer
, node
, nnode
, member
)) {
5656 /* Skip peers with overridden configuration. */
5657 if (CHECK_FLAG(member
->filter_override
[afi
][safi
][direct
],
5658 PEER_FT_PREFIX_LIST
))
5661 /* Set configuration on peer-group member. */
5662 filter
= &member
->filter
[afi
][safi
];
5663 if (filter
->plist
[direct
].name
)
5664 XFREE(MTYPE_BGP_FILTER_NAME
,
5665 filter
->plist
[direct
].name
);
5666 filter
->plist
[direct
].name
=
5667 XSTRDUP(MTYPE_BGP_FILTER_NAME
, name
);
5668 filter
->plist
[direct
].plist
= prefix_list_lookup(afi
, name
);
5670 /* Process peer route updates. */
5671 peer_on_policy_change(member
, afi
, safi
,
5672 (direct
== FILTER_OUT
) ? 1 : 0);
5678 int peer_prefix_list_unset(struct peer
*peer
, afi_t afi
, safi_t safi
,
5681 struct peer
*member
;
5682 struct bgp_filter
*filter
;
5683 struct listnode
*node
, *nnode
;
5685 if (direct
!= FILTER_IN
&& direct
!= FILTER_OUT
)
5686 return BGP_ERR_INVALID_VALUE
;
5688 /* Unset override-flag unconditionally. */
5689 UNSET_FLAG(peer
->filter_override
[afi
][safi
][direct
],
5690 PEER_FT_PREFIX_LIST
);
5692 /* Inherit configuration from peer-group if peer is member. */
5693 if (peer_group_active(peer
)) {
5694 PEER_STR_ATTR_INHERIT(peer
, peer
->group
,
5695 filter
[afi
][safi
].plist
[direct
].name
,
5696 MTYPE_BGP_FILTER_NAME
);
5697 PEER_ATTR_INHERIT(peer
, peer
->group
,
5698 filter
[afi
][safi
].plist
[direct
].plist
);
5700 /* Otherwise remove configuration from peer. */
5701 filter
= &peer
->filter
[afi
][safi
];
5702 if (filter
->plist
[direct
].name
)
5703 XFREE(MTYPE_BGP_FILTER_NAME
,
5704 filter
->plist
[direct
].name
);
5705 filter
->plist
[direct
].name
= NULL
;
5706 filter
->plist
[direct
].plist
= NULL
;
5709 /* Check if handling a regular peer. */
5710 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
5711 /* Process peer route updates. */
5712 peer_on_policy_change(peer
, afi
, safi
,
5713 (direct
== FILTER_OUT
) ? 1 : 0);
5715 /* Skip peer-group mechanics for regular peers. */
5720 * Remove configuration on all peer-group members, unless they are
5721 * explicitely overriding peer-group configuration.
5723 for (ALL_LIST_ELEMENTS(peer
->group
->peer
, node
, nnode
, member
)) {
5724 /* Skip peers with overridden configuration. */
5725 if (CHECK_FLAG(member
->filter_override
[afi
][safi
][direct
],
5726 PEER_FT_PREFIX_LIST
))
5729 /* Remove configuration on peer-group member. */
5730 filter
= &member
->filter
[afi
][safi
];
5731 if (filter
->plist
[direct
].name
)
5732 XFREE(MTYPE_BGP_FILTER_NAME
,
5733 filter
->plist
[direct
].name
);
5734 filter
->plist
[direct
].name
= NULL
;
5735 filter
->plist
[direct
].plist
= NULL
;
5737 /* Process peer route updates. */
5738 peer_on_policy_change(member
, afi
, safi
,
5739 (direct
== FILTER_OUT
) ? 1 : 0);
5745 /* Update prefix-list list. */
5746 static void peer_prefix_list_update(struct prefix_list
*plist
)
5748 struct listnode
*mnode
, *mnnode
;
5749 struct listnode
*node
, *nnode
;
5752 struct peer_group
*group
;
5753 struct bgp_filter
*filter
;
5758 for (ALL_LIST_ELEMENTS(bm
->bgp
, mnode
, mnnode
, bgp
)) {
5761 * Update the prefix-list on update groups.
5763 update_group_policy_update(
5764 bgp
, BGP_POLICY_PREFIX_LIST
,
5765 plist
? prefix_list_name(plist
) : NULL
, 0, 0);
5767 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
5768 FOREACH_AFI_SAFI (afi
, safi
) {
5769 filter
= &peer
->filter
[afi
][safi
];
5771 for (direct
= FILTER_IN
; direct
< FILTER_MAX
;
5773 if (filter
->plist
[direct
].name
)
5774 filter
->plist
[direct
]
5775 .plist
= prefix_list_lookup(
5777 filter
->plist
[direct
]
5780 filter
->plist
[direct
].plist
=
5785 for (ALL_LIST_ELEMENTS(bgp
->group
, node
, nnode
, group
)) {
5786 FOREACH_AFI_SAFI (afi
, safi
) {
5787 filter
= &group
->conf
->filter
[afi
][safi
];
5789 for (direct
= FILTER_IN
; direct
< FILTER_MAX
;
5791 if (filter
->plist
[direct
].name
)
5792 filter
->plist
[direct
]
5793 .plist
= prefix_list_lookup(
5795 filter
->plist
[direct
]
5798 filter
->plist
[direct
].plist
=
5806 int peer_aslist_set(struct peer
*peer
, afi_t afi
, safi_t safi
, int direct
,
5809 struct peer
*member
;
5810 struct bgp_filter
*filter
;
5811 struct listnode
*node
, *nnode
;
5813 if (direct
!= FILTER_IN
&& direct
!= FILTER_OUT
)
5814 return BGP_ERR_INVALID_VALUE
;
5816 /* Set configuration on peer. */
5817 filter
= &peer
->filter
[afi
][safi
];
5818 if (filter
->aslist
[direct
].name
)
5819 XFREE(MTYPE_BGP_FILTER_NAME
, filter
->aslist
[direct
].name
);
5820 filter
->aslist
[direct
].name
= XSTRDUP(MTYPE_BGP_FILTER_NAME
, name
);
5821 filter
->aslist
[direct
].aslist
= as_list_lookup(name
);
5823 /* Check if handling a regular peer. */
5824 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
5825 /* Set override-flag and process peer route updates. */
5826 SET_FLAG(peer
->filter_override
[afi
][safi
][direct
],
5827 PEER_FT_FILTER_LIST
);
5828 peer_on_policy_change(peer
, afi
, safi
,
5829 (direct
== FILTER_OUT
) ? 1 : 0);
5831 /* Skip peer-group mechanics for regular peers. */
5836 * Set configuration on all peer-group members, unless they are
5837 * explicitely overriding peer-group configuration.
5839 for (ALL_LIST_ELEMENTS(peer
->group
->peer
, node
, nnode
, member
)) {
5840 /* Skip peers with overridden configuration. */
5841 if (CHECK_FLAG(member
->filter_override
[afi
][safi
][direct
],
5842 PEER_FT_FILTER_LIST
))
5845 /* Set configuration on peer-group member. */
5846 filter
= &member
->filter
[afi
][safi
];
5847 if (filter
->aslist
[direct
].name
)
5848 XFREE(MTYPE_BGP_FILTER_NAME
,
5849 filter
->aslist
[direct
].name
);
5850 filter
->aslist
[direct
].name
=
5851 XSTRDUP(MTYPE_BGP_FILTER_NAME
, name
);
5852 filter
->aslist
[direct
].aslist
= as_list_lookup(name
);
5854 /* Process peer route updates. */
5855 peer_on_policy_change(member
, afi
, safi
,
5856 (direct
== FILTER_OUT
) ? 1 : 0);
5862 int peer_aslist_unset(struct peer
*peer
, afi_t afi
, safi_t safi
, int direct
)
5864 struct peer
*member
;
5865 struct bgp_filter
*filter
;
5866 struct listnode
*node
, *nnode
;
5868 if (direct
!= FILTER_IN
&& direct
!= FILTER_OUT
)
5869 return BGP_ERR_INVALID_VALUE
;
5871 /* Unset override-flag unconditionally. */
5872 UNSET_FLAG(peer
->filter_override
[afi
][safi
][direct
],
5873 PEER_FT_FILTER_LIST
);
5875 /* Inherit configuration from peer-group if peer is member. */
5876 if (peer_group_active(peer
)) {
5877 PEER_STR_ATTR_INHERIT(peer
, peer
->group
,
5878 filter
[afi
][safi
].aslist
[direct
].name
,
5879 MTYPE_BGP_FILTER_NAME
);
5880 PEER_ATTR_INHERIT(peer
, peer
->group
,
5881 filter
[afi
][safi
].aslist
[direct
].aslist
);
5883 /* Otherwise remove configuration from peer. */
5884 filter
= &peer
->filter
[afi
][safi
];
5885 if (filter
->aslist
[direct
].name
)
5886 XFREE(MTYPE_BGP_FILTER_NAME
,
5887 filter
->aslist
[direct
].name
);
5888 filter
->aslist
[direct
].name
= NULL
;
5889 filter
->aslist
[direct
].aslist
= NULL
;
5892 /* Check if handling a regular peer. */
5893 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
5894 /* Process peer route updates. */
5895 peer_on_policy_change(peer
, afi
, safi
,
5896 (direct
== FILTER_OUT
) ? 1 : 0);
5898 /* Skip peer-group mechanics for regular peers. */
5903 * Remove configuration on all peer-group members, unless they are
5904 * explicitely overriding peer-group configuration.
5906 for (ALL_LIST_ELEMENTS(peer
->group
->peer
, node
, nnode
, member
)) {
5907 /* Skip peers with overridden configuration. */
5908 if (CHECK_FLAG(member
->filter_override
[afi
][safi
][direct
],
5909 PEER_FT_FILTER_LIST
))
5912 /* Remove configuration on peer-group member. */
5913 filter
= &member
->filter
[afi
][safi
];
5914 if (filter
->aslist
[direct
].name
)
5915 XFREE(MTYPE_BGP_FILTER_NAME
,
5916 filter
->aslist
[direct
].name
);
5917 filter
->aslist
[direct
].name
= NULL
;
5918 filter
->aslist
[direct
].aslist
= NULL
;
5920 /* Process peer route updates. */
5921 peer_on_policy_change(member
, afi
, safi
,
5922 (direct
== FILTER_OUT
) ? 1 : 0);
5928 static void peer_aslist_update(const char *aslist_name
)
5933 struct listnode
*mnode
, *mnnode
;
5934 struct listnode
*node
, *nnode
;
5937 struct peer_group
*group
;
5938 struct bgp_filter
*filter
;
5940 for (ALL_LIST_ELEMENTS(bm
->bgp
, mnode
, mnnode
, bgp
)) {
5941 update_group_policy_update(bgp
, BGP_POLICY_FILTER_LIST
,
5944 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
5945 FOREACH_AFI_SAFI (afi
, safi
) {
5946 filter
= &peer
->filter
[afi
][safi
];
5948 for (direct
= FILTER_IN
; direct
< FILTER_MAX
;
5950 if (filter
->aslist
[direct
].name
)
5951 filter
->aslist
[direct
]
5952 .aslist
= as_list_lookup(
5953 filter
->aslist
[direct
]
5956 filter
->aslist
[direct
].aslist
=
5961 for (ALL_LIST_ELEMENTS(bgp
->group
, node
, nnode
, group
)) {
5962 FOREACH_AFI_SAFI (afi
, safi
) {
5963 filter
= &group
->conf
->filter
[afi
][safi
];
5965 for (direct
= FILTER_IN
; direct
< FILTER_MAX
;
5967 if (filter
->aslist
[direct
].name
)
5968 filter
->aslist
[direct
]
5969 .aslist
= as_list_lookup(
5970 filter
->aslist
[direct
]
5973 filter
->aslist
[direct
].aslist
=
5981 static void peer_aslist_add(char *aslist_name
)
5983 peer_aslist_update(aslist_name
);
5984 route_map_notify_dependencies((char *)aslist_name
,
5985 RMAP_EVENT_ASLIST_ADDED
);
5988 static void peer_aslist_del(const char *aslist_name
)
5990 peer_aslist_update(aslist_name
);
5991 route_map_notify_dependencies(aslist_name
, RMAP_EVENT_ASLIST_DELETED
);
5995 int peer_route_map_set(struct peer
*peer
, afi_t afi
, safi_t safi
, int direct
,
5998 struct peer
*member
;
5999 struct bgp_filter
*filter
;
6000 struct listnode
*node
, *nnode
;
6002 if (direct
!= RMAP_IN
&& direct
!= RMAP_OUT
)
6003 return BGP_ERR_INVALID_VALUE
;
6005 /* Set configuration on peer. */
6006 filter
= &peer
->filter
[afi
][safi
];
6007 if (filter
->map
[direct
].name
)
6008 XFREE(MTYPE_BGP_FILTER_NAME
, filter
->map
[direct
].name
);
6009 filter
->map
[direct
].name
= XSTRDUP(MTYPE_BGP_FILTER_NAME
, name
);
6010 filter
->map
[direct
].map
= route_map_lookup_by_name(name
);
6012 /* Check if handling a regular peer. */
6013 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
6014 /* Set override-flag and process peer route updates. */
6015 SET_FLAG(peer
->filter_override
[afi
][safi
][direct
],
6017 peer_on_policy_change(peer
, afi
, safi
,
6018 (direct
== RMAP_OUT
) ? 1 : 0);
6020 /* Skip peer-group mechanics for regular peers. */
6025 * Set configuration on all peer-group members, unless they are
6026 * explicitely overriding peer-group configuration.
6028 for (ALL_LIST_ELEMENTS(peer
->group
->peer
, node
, nnode
, member
)) {
6029 /* Skip peers with overridden configuration. */
6030 if (CHECK_FLAG(member
->filter_override
[afi
][safi
][direct
],
6034 /* Set configuration on peer-group member. */
6035 filter
= &member
->filter
[afi
][safi
];
6036 if (filter
->map
[direct
].name
)
6037 XFREE(MTYPE_BGP_FILTER_NAME
, filter
->map
[direct
].name
);
6038 filter
->map
[direct
].name
= XSTRDUP(MTYPE_BGP_FILTER_NAME
, name
);
6039 filter
->map
[direct
].map
= route_map_lookup_by_name(name
);
6041 /* Process peer route updates. */
6042 peer_on_policy_change(member
, afi
, safi
,
6043 (direct
== RMAP_OUT
) ? 1 : 0);
6048 /* Unset route-map from the peer. */
6049 int peer_route_map_unset(struct peer
*peer
, afi_t afi
, safi_t safi
, int direct
)
6051 struct peer
*member
;
6052 struct bgp_filter
*filter
;
6053 struct listnode
*node
, *nnode
;
6055 if (direct
!= RMAP_IN
&& direct
!= RMAP_OUT
)
6056 return BGP_ERR_INVALID_VALUE
;
6058 /* Unset override-flag unconditionally. */
6059 UNSET_FLAG(peer
->filter_override
[afi
][safi
][direct
], PEER_FT_ROUTE_MAP
);
6061 /* Inherit configuration from peer-group if peer is member. */
6062 if (peer_group_active(peer
)) {
6063 PEER_STR_ATTR_INHERIT(peer
, peer
->group
,
6064 filter
[afi
][safi
].map
[direct
].name
,
6065 MTYPE_BGP_FILTER_NAME
);
6066 PEER_ATTR_INHERIT(peer
, peer
->group
,
6067 filter
[afi
][safi
].map
[direct
].map
);
6069 /* Otherwise remove configuration from peer. */
6070 filter
= &peer
->filter
[afi
][safi
];
6071 if (filter
->map
[direct
].name
)
6072 XFREE(MTYPE_BGP_FILTER_NAME
, filter
->map
[direct
].name
);
6073 filter
->map
[direct
].name
= NULL
;
6074 filter
->map
[direct
].map
= NULL
;
6077 /* Check if handling a regular peer. */
6078 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
6079 /* Process peer route updates. */
6080 peer_on_policy_change(peer
, afi
, safi
,
6081 (direct
== RMAP_OUT
) ? 1 : 0);
6083 /* Skip peer-group mechanics for regular peers. */
6088 * Remove configuration on all peer-group members, unless they are
6089 * explicitely overriding peer-group configuration.
6091 for (ALL_LIST_ELEMENTS(peer
->group
->peer
, node
, nnode
, member
)) {
6092 /* Skip peers with overridden configuration. */
6093 if (CHECK_FLAG(member
->filter_override
[afi
][safi
][direct
],
6097 /* Remove configuration on peer-group member. */
6098 filter
= &member
->filter
[afi
][safi
];
6099 if (filter
->map
[direct
].name
)
6100 XFREE(MTYPE_BGP_FILTER_NAME
, filter
->map
[direct
].name
);
6101 filter
->map
[direct
].name
= NULL
;
6102 filter
->map
[direct
].map
= NULL
;
6104 /* Process peer route updates. */
6105 peer_on_policy_change(member
, afi
, safi
,
6106 (direct
== RMAP_OUT
) ? 1 : 0);
6112 /* Set unsuppress-map to the peer. */
6113 int peer_unsuppress_map_set(struct peer
*peer
, afi_t afi
, safi_t safi
,
6116 struct peer
*member
;
6117 struct bgp_filter
*filter
;
6118 struct listnode
*node
, *nnode
;
6120 /* Set configuration on peer. */
6121 filter
= &peer
->filter
[afi
][safi
];
6122 if (filter
->usmap
.name
)
6123 XFREE(MTYPE_BGP_FILTER_NAME
, filter
->usmap
.name
);
6124 filter
->usmap
.name
= XSTRDUP(MTYPE_BGP_FILTER_NAME
, name
);
6125 filter
->usmap
.map
= route_map_lookup_by_name(name
);
6127 /* Check if handling a regular peer. */
6128 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
6129 /* Set override-flag and process peer route updates. */
6130 SET_FLAG(peer
->filter_override
[afi
][safi
][0],
6131 PEER_FT_UNSUPPRESS_MAP
);
6132 peer_on_policy_change(peer
, afi
, safi
, 1);
6134 /* Skip peer-group mechanics for regular peers. */
6139 * Set configuration on all peer-group members, unless they are
6140 * explicitely overriding peer-group configuration.
6142 for (ALL_LIST_ELEMENTS(peer
->group
->peer
, node
, nnode
, member
)) {
6143 /* Skip peers with overridden configuration. */
6144 if (CHECK_FLAG(member
->filter_override
[afi
][safi
][0],
6145 PEER_FT_UNSUPPRESS_MAP
))
6148 /* Set configuration on peer-group member. */
6149 filter
= &member
->filter
[afi
][safi
];
6150 if (filter
->usmap
.name
)
6151 XFREE(MTYPE_BGP_FILTER_NAME
, filter
->usmap
.name
);
6152 filter
->usmap
.name
= XSTRDUP(MTYPE_BGP_FILTER_NAME
, name
);
6153 filter
->usmap
.map
= route_map_lookup_by_name(name
);
6155 /* Process peer route updates. */
6156 peer_on_policy_change(member
, afi
, safi
, 1);
6162 /* Unset route-map from the peer. */
6163 int peer_unsuppress_map_unset(struct peer
*peer
, afi_t afi
, safi_t safi
)
6165 struct peer
*member
;
6166 struct bgp_filter
*filter
;
6167 struct listnode
*node
, *nnode
;
6169 /* Unset override-flag unconditionally. */
6170 UNSET_FLAG(peer
->filter_override
[afi
][safi
][0], PEER_FT_UNSUPPRESS_MAP
);
6172 /* Inherit configuration from peer-group if peer is member. */
6173 if (peer_group_active(peer
)) {
6174 PEER_STR_ATTR_INHERIT(peer
, peer
->group
,
6175 filter
[afi
][safi
].usmap
.name
,
6176 MTYPE_BGP_FILTER_NAME
);
6177 PEER_ATTR_INHERIT(peer
, peer
->group
,
6178 filter
[afi
][safi
].usmap
.map
);
6180 /* Otherwise remove configuration from peer. */
6181 filter
= &peer
->filter
[afi
][safi
];
6182 if (filter
->usmap
.name
)
6183 XFREE(MTYPE_BGP_FILTER_NAME
, filter
->usmap
.name
);
6184 filter
->usmap
.name
= NULL
;
6185 filter
->usmap
.map
= NULL
;
6188 /* Check if handling a regular peer. */
6189 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
6190 /* Process peer route updates. */
6191 peer_on_policy_change(peer
, afi
, safi
, 1);
6193 /* Skip peer-group mechanics for regular peers. */
6198 * Remove configuration on all peer-group members, unless they are
6199 * explicitely overriding peer-group configuration.
6201 for (ALL_LIST_ELEMENTS(peer
->group
->peer
, node
, nnode
, member
)) {
6202 /* Skip peers with overridden configuration. */
6203 if (CHECK_FLAG(member
->filter_override
[afi
][safi
][0],
6204 PEER_FT_UNSUPPRESS_MAP
))
6207 /* Remove configuration on peer-group member. */
6208 filter
= &member
->filter
[afi
][safi
];
6209 if (filter
->usmap
.name
)
6210 XFREE(MTYPE_BGP_FILTER_NAME
, filter
->usmap
.name
);
6211 filter
->usmap
.name
= NULL
;
6212 filter
->usmap
.map
= NULL
;
6214 /* Process peer route updates. */
6215 peer_on_policy_change(member
, afi
, safi
, 1);
6221 int peer_maximum_prefix_set(struct peer
*peer
, afi_t afi
, safi_t safi
,
6222 uint32_t max
, uint8_t threshold
, int warning
,
6225 struct peer
*member
;
6226 struct listnode
*node
, *nnode
;
6228 /* Set flags and configuration on peer. */
6229 peer_af_flag_set(peer
, afi
, safi
, PEER_FLAG_MAX_PREFIX
);
6231 peer_af_flag_set(peer
, afi
, safi
, PEER_FLAG_MAX_PREFIX_WARNING
);
6233 peer_af_flag_unset(peer
, afi
, safi
,
6234 PEER_FLAG_MAX_PREFIX_WARNING
);
6236 peer
->pmax
[afi
][safi
] = max
;
6237 peer
->pmax_threshold
[afi
][safi
] = threshold
;
6238 peer
->pmax_restart
[afi
][safi
] = restart
;
6240 /* Check if handling a regular peer. */
6241 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
6242 /* Re-check if peer violates maximum-prefix. */
6243 if ((peer
->status
== Established
) && (peer
->afc
[afi
][safi
]))
6244 bgp_maximum_prefix_overflow(peer
, afi
, safi
, 1);
6246 /* Skip peer-group mechanics for regular peers. */
6251 * Set flags and configuration on all peer-group members, unless they
6252 * are explicitely overriding peer-group configuration.
6254 for (ALL_LIST_ELEMENTS(peer
->group
->peer
, node
, nnode
, member
)) {
6255 /* Skip peers with overridden configuration. */
6256 if (CHECK_FLAG(member
->af_flags_override
[afi
][safi
],
6257 PEER_FLAG_MAX_PREFIX
))
6260 /* Set flag and configuration on peer-group member. */
6261 member
->pmax
[afi
][safi
] = max
;
6262 member
->pmax_threshold
[afi
][safi
] = threshold
;
6263 member
->pmax_restart
[afi
][safi
] = restart
;
6265 SET_FLAG(member
->af_flags
[afi
][safi
],
6266 PEER_FLAG_MAX_PREFIX_WARNING
);
6268 UNSET_FLAG(member
->af_flags
[afi
][safi
],
6269 PEER_FLAG_MAX_PREFIX_WARNING
);
6271 /* Re-check if peer violates maximum-prefix. */
6272 if ((member
->status
== Established
) && (member
->afc
[afi
][safi
]))
6273 bgp_maximum_prefix_overflow(member
, afi
, safi
, 1);
6279 int peer_maximum_prefix_unset(struct peer
*peer
, afi_t afi
, safi_t safi
)
6281 struct peer
*member
;
6282 struct listnode
*node
, *nnode
;
6284 /* Inherit configuration from peer-group if peer is member. */
6285 if (peer_group_active(peer
)) {
6286 peer_af_flag_inherit(peer
, afi
, safi
, PEER_FLAG_MAX_PREFIX
);
6287 peer_af_flag_inherit(peer
, afi
, safi
,
6288 PEER_FLAG_MAX_PREFIX_WARNING
);
6289 PEER_ATTR_INHERIT(peer
, peer
->group
, pmax
[afi
][safi
]);
6290 PEER_ATTR_INHERIT(peer
, peer
->group
, pmax_threshold
[afi
][safi
]);
6291 PEER_ATTR_INHERIT(peer
, peer
->group
, pmax_restart
[afi
][safi
]);
6296 /* Remove flags and configuration from peer. */
6297 peer_af_flag_unset(peer
, afi
, safi
, PEER_FLAG_MAX_PREFIX
);
6298 peer_af_flag_unset(peer
, afi
, safi
, PEER_FLAG_MAX_PREFIX_WARNING
);
6299 peer
->pmax
[afi
][safi
] = 0;
6300 peer
->pmax_threshold
[afi
][safi
] = 0;
6301 peer
->pmax_restart
[afi
][safi
] = 0;
6304 * Remove flags and configuration from all peer-group members, unless
6305 * they are explicitely overriding peer-group configuration.
6307 for (ALL_LIST_ELEMENTS(peer
->group
->peer
, node
, nnode
, member
)) {
6308 /* Skip peers with overridden configuration. */
6309 if (CHECK_FLAG(member
->af_flags_override
[afi
][safi
],
6310 PEER_FLAG_MAX_PREFIX
))
6313 /* Remove flag and configuration on peer-group member. */
6314 UNSET_FLAG(member
->af_flags
[afi
][safi
], PEER_FLAG_MAX_PREFIX
);
6315 UNSET_FLAG(member
->af_flags
[afi
][safi
],
6316 PEER_FLAG_MAX_PREFIX_WARNING
);
6317 member
->pmax
[afi
][safi
] = 0;
6318 member
->pmax_threshold
[afi
][safi
] = 0;
6319 member
->pmax_restart
[afi
][safi
] = 0;
6325 int is_ebgp_multihop_configured(struct peer
*peer
)
6327 struct peer_group
*group
;
6328 struct listnode
*node
, *nnode
;
6331 if (CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
6332 group
= peer
->group
;
6333 if ((peer_sort(peer
) != BGP_PEER_IBGP
)
6334 && (group
->conf
->ttl
!= 1))
6337 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer1
)) {
6338 if ((peer_sort(peer1
) != BGP_PEER_IBGP
)
6339 && (peer1
->ttl
!= 1))
6343 if ((peer_sort(peer
) != BGP_PEER_IBGP
) && (peer
->ttl
!= 1))
6349 /* Set # of hops between us and BGP peer. */
6350 int peer_ttl_security_hops_set(struct peer
*peer
, int gtsm_hops
)
6352 struct peer_group
*group
;
6353 struct listnode
*node
, *nnode
;
6356 zlog_debug("peer_ttl_security_hops_set: set gtsm_hops to %d for %s",
6357 gtsm_hops
, peer
->host
);
6359 /* We cannot configure ttl-security hops when ebgp-multihop is already
6360 set. For non peer-groups, the check is simple. For peer-groups,
6362 slightly messy, because we need to check both the peer-group
6364 and all peer-group members for any trace of ebgp-multihop
6366 before actually applying the ttl-security rules. Cisco really made a
6367 mess of this configuration parameter, and OpenBGPD got it right.
6370 if ((peer
->gtsm_hops
== 0) && (peer
->sort
!= BGP_PEER_IBGP
)) {
6371 if (is_ebgp_multihop_configured(peer
))
6372 return BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK
;
6374 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
6375 peer
->gtsm_hops
= gtsm_hops
;
6377 /* Calling ebgp multihop also resets the session.
6378 * On restart, NHT will get setup correctly as will the
6379 * min & max ttls on the socket. The return value is
6382 ret
= peer_ebgp_multihop_set(peer
, MAXTTL
);
6387 group
= peer
->group
;
6388 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
,
6390 peer
->gtsm_hops
= group
->conf
->gtsm_hops
;
6392 /* Calling ebgp multihop also resets the
6394 * On restart, NHT will get setup correctly as
6396 * min & max ttls on the socket. The return
6400 peer_ebgp_multihop_set(peer
, MAXTTL
);
6404 /* Post the first gtsm setup or if its ibgp, maxttl setting
6406 * necessary, just set the minttl.
6408 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
6409 peer
->gtsm_hops
= gtsm_hops
;
6412 sockopt_minttl(peer
->su
.sa
.sa_family
, peer
->fd
,
6413 MAXTTL
+ 1 - gtsm_hops
);
6414 if ((peer
->status
< Established
) && peer
->doppelganger
6415 && (peer
->doppelganger
->fd
>= 0))
6416 sockopt_minttl(peer
->su
.sa
.sa_family
,
6417 peer
->doppelganger
->fd
,
6418 MAXTTL
+ 1 - gtsm_hops
);
6420 group
= peer
->group
;
6421 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
,
6423 peer
->gtsm_hops
= group
->conf
->gtsm_hops
;
6425 /* Change setting of existing peer
6426 * established then change value (may break
6428 * not established yet (teardown session and
6430 * no session then do nothing (will get
6431 * handled by next connection)
6433 if (peer
->fd
>= 0 && peer
->gtsm_hops
!= 0)
6435 peer
->su
.sa
.sa_family
, peer
->fd
,
6436 MAXTTL
+ 1 - peer
->gtsm_hops
);
6437 if ((peer
->status
< Established
)
6438 && peer
->doppelganger
6439 && (peer
->doppelganger
->fd
>= 0))
6440 sockopt_minttl(peer
->su
.sa
.sa_family
,
6441 peer
->doppelganger
->fd
,
6442 MAXTTL
+ 1 - gtsm_hops
);
6450 int peer_ttl_security_hops_unset(struct peer
*peer
)
6452 struct peer_group
*group
;
6453 struct listnode
*node
, *nnode
;
6456 zlog_debug("peer_ttl_security_hops_unset: set gtsm_hops to zero for %s",
6459 /* if a peer-group member, then reset to peer-group default rather than
6461 if (peer_group_active(peer
))
6462 peer
->gtsm_hops
= peer
->group
->conf
->gtsm_hops
;
6464 peer
->gtsm_hops
= 0;
6466 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
6467 /* Invoking ebgp_multihop_set will set the TTL back to the
6469 * value as well as restting the NHT and such. The session is
6472 if (peer
->sort
== BGP_PEER_EBGP
)
6473 ret
= peer_ebgp_multihop_unset(peer
);
6476 sockopt_minttl(peer
->su
.sa
.sa_family
, peer
->fd
,
6479 if ((peer
->status
< Established
) && peer
->doppelganger
6480 && (peer
->doppelganger
->fd
>= 0))
6481 sockopt_minttl(peer
->su
.sa
.sa_family
,
6482 peer
->doppelganger
->fd
, 0);
6485 group
= peer
->group
;
6486 for (ALL_LIST_ELEMENTS(group
->peer
, node
, nnode
, peer
)) {
6487 peer
->gtsm_hops
= 0;
6488 if (peer
->sort
== BGP_PEER_EBGP
)
6489 ret
= peer_ebgp_multihop_unset(peer
);
6492 sockopt_minttl(peer
->su
.sa
.sa_family
,
6495 if ((peer
->status
< Established
)
6496 && peer
->doppelganger
6497 && (peer
->doppelganger
->fd
>= 0))
6498 sockopt_minttl(peer
->su
.sa
.sa_family
,
6499 peer
->doppelganger
->fd
,
6509 * If peer clear is invoked in a loop for all peers on the BGP instance,
6510 * it may end up freeing the doppelganger, and if this was the next node
6511 * to the current node, we would end up accessing the freed next node.
6512 * Pass along additional parameter which can be updated if next node
6513 * is freed; only required when walking the peer list on BGP instance.
6515 int peer_clear(struct peer
*peer
, struct listnode
**nnode
)
6517 if (!CHECK_FLAG(peer
->flags
, PEER_FLAG_SHUTDOWN
)) {
6518 if (CHECK_FLAG(peer
->sflags
, PEER_STATUS_PREFIX_OVERFLOW
)) {
6519 UNSET_FLAG(peer
->sflags
, PEER_STATUS_PREFIX_OVERFLOW
);
6520 if (peer
->t_pmax_restart
) {
6521 BGP_TIMER_OFF(peer
->t_pmax_restart
);
6522 if (bgp_debug_neighbor_events(peer
))
6524 "%s Maximum-prefix restart timer canceled",
6527 BGP_EVENT_ADD(peer
, BGP_Start
);
6531 peer
->v_start
= BGP_INIT_START_TIMER
;
6532 if (BGP_IS_VALID_STATE_FOR_NOTIF(peer
->status
))
6533 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
6534 BGP_NOTIFY_CEASE_ADMIN_RESET
);
6536 bgp_session_reset_safe(peer
, nnode
);
6541 int peer_clear_soft(struct peer
*peer
, afi_t afi
, safi_t safi
,
6542 enum bgp_clear_type stype
)
6544 struct peer_af
*paf
;
6546 if (peer
->status
!= Established
)
6549 if (!peer
->afc
[afi
][safi
])
6550 return BGP_ERR_AF_UNCONFIGURED
;
6552 peer
->rtt
= sockopt_tcp_rtt(peer
->fd
);
6554 if (stype
== BGP_CLEAR_SOFT_OUT
|| stype
== BGP_CLEAR_SOFT_BOTH
) {
6555 /* Clear the "neighbor x.x.x.x default-originate" flag */
6556 paf
= peer_af_find(peer
, afi
, safi
);
6557 if (paf
&& paf
->subgroup
6558 && CHECK_FLAG(paf
->subgroup
->sflags
,
6559 SUBGRP_STATUS_DEFAULT_ORIGINATE
))
6560 UNSET_FLAG(paf
->subgroup
->sflags
,
6561 SUBGRP_STATUS_DEFAULT_ORIGINATE
);
6563 bgp_announce_route(peer
, afi
, safi
);
6566 if (stype
== BGP_CLEAR_SOFT_IN_ORF_PREFIX
) {
6567 if (CHECK_FLAG(peer
->af_cap
[afi
][safi
],
6568 PEER_CAP_ORF_PREFIX_SM_ADV
)
6569 && (CHECK_FLAG(peer
->af_cap
[afi
][safi
],
6570 PEER_CAP_ORF_PREFIX_RM_RCV
)
6571 || CHECK_FLAG(peer
->af_cap
[afi
][safi
],
6572 PEER_CAP_ORF_PREFIX_RM_OLD_RCV
))) {
6573 struct bgp_filter
*filter
= &peer
->filter
[afi
][safi
];
6574 uint8_t prefix_type
;
6576 if (CHECK_FLAG(peer
->af_cap
[afi
][safi
],
6577 PEER_CAP_ORF_PREFIX_RM_RCV
))
6578 prefix_type
= ORF_TYPE_PREFIX
;
6580 prefix_type
= ORF_TYPE_PREFIX_OLD
;
6582 if (filter
->plist
[FILTER_IN
].plist
) {
6583 if (CHECK_FLAG(peer
->af_sflags
[afi
][safi
],
6584 PEER_STATUS_ORF_PREFIX_SEND
))
6585 bgp_route_refresh_send(
6586 peer
, afi
, safi
, prefix_type
,
6588 bgp_route_refresh_send(peer
, afi
, safi
,
6590 REFRESH_IMMEDIATE
, 0);
6592 if (CHECK_FLAG(peer
->af_sflags
[afi
][safi
],
6593 PEER_STATUS_ORF_PREFIX_SEND
))
6594 bgp_route_refresh_send(
6595 peer
, afi
, safi
, prefix_type
,
6596 REFRESH_IMMEDIATE
, 1);
6598 bgp_route_refresh_send(peer
, afi
, safi
,
6605 if (stype
== BGP_CLEAR_SOFT_IN
|| stype
== BGP_CLEAR_SOFT_BOTH
6606 || stype
== BGP_CLEAR_SOFT_IN_ORF_PREFIX
) {
6607 /* If neighbor has soft reconfiguration inbound flag.
6608 Use Adj-RIB-In database. */
6609 if (CHECK_FLAG(peer
->af_flags
[afi
][safi
],
6610 PEER_FLAG_SOFT_RECONFIG
))
6611 bgp_soft_reconfig_in(peer
, afi
, safi
);
6613 /* If neighbor has route refresh capability, send route
6615 message to the peer. */
6616 if (CHECK_FLAG(peer
->cap
, PEER_CAP_REFRESH_OLD_RCV
)
6617 || CHECK_FLAG(peer
->cap
, PEER_CAP_REFRESH_NEW_RCV
))
6618 bgp_route_refresh_send(peer
, afi
, safi
, 0, 0,
6621 return BGP_ERR_SOFT_RECONFIG_UNCONFIGURED
;
6627 /* Display peer uptime.*/
6628 char *peer_uptime(time_t uptime2
, char *buf
, size_t len
, uint8_t use_json
,
6631 time_t uptime1
, epoch_tbuf
;
6634 /* If there is no connection has been done before print `never'. */
6637 json_object_string_add(json
, "peerUptime", "never");
6638 json_object_int_add(json
, "peerUptimeMsec", 0);
6640 snprintf(buf
, len
, "never");
6644 /* Get current time. */
6645 uptime1
= bgp_clock();
6647 tm
= gmtime(&uptime1
);
6649 if (uptime1
< ONE_DAY_SECOND
)
6650 snprintf(buf
, len
, "%02d:%02d:%02d", tm
->tm_hour
, tm
->tm_min
,
6652 else if (uptime1
< ONE_WEEK_SECOND
)
6653 snprintf(buf
, len
, "%dd%02dh%02dm", tm
->tm_yday
, tm
->tm_hour
,
6655 else if (uptime1
< ONE_YEAR_SECOND
)
6656 snprintf(buf
, len
, "%02dw%dd%02dh", tm
->tm_yday
/ 7,
6657 tm
->tm_yday
- ((tm
->tm_yday
/ 7) * 7), tm
->tm_hour
);
6659 snprintf(buf
, len
, "%02dy%02dw%dd", tm
->tm_year
- 70,
6661 tm
->tm_yday
- ((tm
->tm_yday
/ 7) * 7));
6664 epoch_tbuf
= time(NULL
) - uptime1
;
6665 json_object_string_add(json
, "peerUptime", buf
);
6666 json_object_int_add(json
, "peerUptimeMsec", uptime1
* 1000);
6667 json_object_int_add(json
, "peerUptimeEstablishedEpoch",
6674 static void bgp_config_write_filter(struct vty
*vty
, struct peer
*peer
,
6675 afi_t afi
, safi_t safi
)
6677 struct bgp_filter
*filter
;
6681 filter
= &peer
->filter
[afi
][safi
];
6683 /* distribute-list. */
6684 if (peergroup_filter_check(peer
, afi
, safi
, PEER_FT_DISTRIBUTE_LIST
,
6686 vty_out(vty
, " neighbor %s distribute-list %s in\n", addr
,
6687 filter
->dlist
[FILTER_IN
].name
);
6689 if (peergroup_filter_check(peer
, afi
, safi
, PEER_FT_DISTRIBUTE_LIST
,
6691 vty_out(vty
, " neighbor %s distribute-list %s out\n", addr
,
6692 filter
->dlist
[FILTER_OUT
].name
);
6695 if (peergroup_filter_check(peer
, afi
, safi
, PEER_FT_PREFIX_LIST
,
6697 vty_out(vty
, " neighbor %s prefix-list %s in\n", addr
,
6698 filter
->plist
[FILTER_IN
].name
);
6700 if (peergroup_filter_check(peer
, afi
, safi
, PEER_FT_PREFIX_LIST
,
6702 vty_out(vty
, " neighbor %s prefix-list %s out\n", addr
,
6703 filter
->plist
[FILTER_OUT
].name
);
6706 if (peergroup_filter_check(peer
, afi
, safi
, PEER_FT_ROUTE_MAP
, RMAP_IN
))
6707 vty_out(vty
, " neighbor %s route-map %s in\n", addr
,
6708 filter
->map
[RMAP_IN
].name
);
6710 if (peergroup_filter_check(peer
, afi
, safi
, PEER_FT_ROUTE_MAP
,
6712 vty_out(vty
, " neighbor %s route-map %s out\n", addr
,
6713 filter
->map
[RMAP_OUT
].name
);
6715 /* unsuppress-map */
6716 if (peergroup_filter_check(peer
, afi
, safi
, PEER_FT_UNSUPPRESS_MAP
, 0))
6717 vty_out(vty
, " neighbor %s unsuppress-map %s\n", addr
,
6718 filter
->usmap
.name
);
6721 if (peergroup_filter_check(peer
, afi
, safi
, PEER_FT_FILTER_LIST
,
6723 vty_out(vty
, " neighbor %s filter-list %s in\n", addr
,
6724 filter
->aslist
[FILTER_IN
].name
);
6726 if (peergroup_filter_check(peer
, afi
, safi
, PEER_FT_FILTER_LIST
,
6728 vty_out(vty
, " neighbor %s filter-list %s out\n", addr
,
6729 filter
->aslist
[FILTER_OUT
].name
);
6732 /* BGP peer configuration display function. */
6733 static void bgp_config_write_peer_global(struct vty
*vty
, struct bgp
*bgp
,
6736 struct peer
*g_peer
= NULL
;
6737 char buf
[SU_ADDRSTRLEN
];
6739 int if_pg_printed
= FALSE
;
6740 int if_ras_printed
= FALSE
;
6742 /* Skip dynamic neighbors. */
6743 if (peer_dynamic_neighbor(peer
))
6747 addr
= peer
->conf_if
;
6751 /************************************
6752 ****** Global to the neighbor ******
6753 ************************************/
6754 if (peer
->conf_if
) {
6755 if (CHECK_FLAG(peer
->flags
, PEER_FLAG_IFPEER_V6ONLY
))
6756 vty_out(vty
, " neighbor %s interface v6only", addr
);
6758 vty_out(vty
, " neighbor %s interface", addr
);
6760 if (peer_group_active(peer
)) {
6761 vty_out(vty
, " peer-group %s", peer
->group
->name
);
6762 if_pg_printed
= TRUE
;
6763 } else if (peer
->as_type
== AS_SPECIFIED
) {
6764 vty_out(vty
, " remote-as %u", peer
->as
);
6765 if_ras_printed
= TRUE
;
6766 } else if (peer
->as_type
== AS_INTERNAL
) {
6767 vty_out(vty
, " remote-as internal");
6768 if_ras_printed
= TRUE
;
6769 } else if (peer
->as_type
== AS_EXTERNAL
) {
6770 vty_out(vty
, " remote-as external");
6771 if_ras_printed
= TRUE
;
6777 /* remote-as and peer-group */
6778 /* peer is a member of a peer-group */
6779 if (peer_group_active(peer
)) {
6780 g_peer
= peer
->group
->conf
;
6782 if (g_peer
->as_type
== AS_UNSPECIFIED
&& !if_ras_printed
) {
6783 if (peer
->as_type
== AS_SPECIFIED
) {
6784 vty_out(vty
, " neighbor %s remote-as %u\n",
6786 } else if (peer
->as_type
== AS_INTERNAL
) {
6788 " neighbor %s remote-as internal\n",
6790 } else if (peer
->as_type
== AS_EXTERNAL
) {
6792 " neighbor %s remote-as external\n",
6797 /* For swpX peers we displayed the peer-group
6798 * via 'neighbor swpX interface peer-group WORD' */
6800 vty_out(vty
, " neighbor %s peer-group %s\n", addr
,
6804 /* peer is NOT a member of a peer-group */
6806 /* peer is a peer-group, declare the peer-group */
6807 if (CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
)) {
6808 vty_out(vty
, " neighbor %s peer-group\n", addr
);
6811 if (!if_ras_printed
) {
6812 if (peer
->as_type
== AS_SPECIFIED
) {
6813 vty_out(vty
, " neighbor %s remote-as %u\n",
6815 } else if (peer
->as_type
== AS_INTERNAL
) {
6817 " neighbor %s remote-as internal\n",
6819 } else if (peer
->as_type
== AS_EXTERNAL
) {
6821 " neighbor %s remote-as external\n",
6828 if (peergroup_flag_check(peer
, PEER_FLAG_LOCAL_AS
)) {
6829 vty_out(vty
, " neighbor %s local-as %u", addr
,
6830 peer
->change_local_as
);
6831 if (peergroup_flag_check(peer
, PEER_FLAG_LOCAL_AS_NO_PREPEND
))
6832 vty_out(vty
, " no-prepend");
6833 if (peergroup_flag_check(peer
, PEER_FLAG_LOCAL_AS_REPLACE_AS
))
6834 vty_out(vty
, " replace-as");
6840 vty_out(vty
, " neighbor %s description %s\n", addr
, peer
->desc
);
6844 if (peergroup_flag_check(peer
, PEER_FLAG_SHUTDOWN
)) {
6845 if (peer
->tx_shutdown_message
)
6846 vty_out(vty
, " neighbor %s shutdown message %s\n", addr
,
6847 peer
->tx_shutdown_message
);
6849 vty_out(vty
, " neighbor %s shutdown\n", addr
);
6853 if (peer
->bfd_info
) {
6854 if (!peer_group_active(peer
) || !g_peer
->bfd_info
) {
6855 bgp_bfd_peer_config_write(vty
, peer
, addr
);
6860 if (peergroup_flag_check(peer
, PEER_FLAG_PASSWORD
))
6861 vty_out(vty
, " neighbor %s password %s\n", addr
,
6865 if (CHECK_FLAG(peer
->flags
, PEER_FLAG_LONESOUL
)) {
6866 if (!peer_group_active(peer
)) {
6867 vty_out(vty
, " neighbor %s solo\n", addr
);
6872 if (peer
->port
!= BGP_PORT_DEFAULT
) {
6873 vty_out(vty
, " neighbor %s port %d\n", addr
, peer
->port
);
6876 /* Local interface name */
6878 vty_out(vty
, " neighbor %s interface %s\n", addr
, peer
->ifname
);
6882 if (peergroup_flag_check(peer
, PEER_FLAG_PASSIVE
))
6883 vty_out(vty
, " neighbor %s passive\n", addr
);
6886 if (peer
->sort
!= BGP_PEER_IBGP
&& peer
->ttl
!= 1
6887 && !(peer
->gtsm_hops
!= 0 && peer
->ttl
== MAXTTL
)) {
6888 if (!peer_group_active(peer
) || g_peer
->ttl
!= peer
->ttl
) {
6889 vty_out(vty
, " neighbor %s ebgp-multihop %d\n", addr
,
6894 /* ttl-security hops */
6895 if (peer
->gtsm_hops
!= 0) {
6896 if (!peer_group_active(peer
)
6897 || g_peer
->gtsm_hops
!= peer
->gtsm_hops
) {
6898 vty_out(vty
, " neighbor %s ttl-security hops %d\n",
6899 addr
, peer
->gtsm_hops
);
6903 /* disable-connected-check */
6904 if (peergroup_flag_check(peer
, PEER_FLAG_DISABLE_CONNECTED_CHECK
))
6905 vty_out(vty
, " neighbor %s disable-connected-check\n", addr
);
6907 /* enforce-first-as */
6908 if (peergroup_flag_check(peer
, PEER_FLAG_ENFORCE_FIRST_AS
))
6909 vty_out(vty
, " neighbor %s enforce-first-as\n", addr
);
6912 if (peergroup_flag_check(peer
, PEER_FLAG_UPDATE_SOURCE
)) {
6913 if (peer
->update_source
)
6914 vty_out(vty
, " neighbor %s update-source %s\n", addr
,
6915 sockunion2str(peer
->update_source
, buf
,
6917 else if (peer
->update_if
)
6918 vty_out(vty
, " neighbor %s update-source %s\n", addr
,
6922 /* advertisement-interval */
6923 if (peergroup_flag_check(peer
, PEER_FLAG_ROUTEADV
))
6924 vty_out(vty
, " neighbor %s advertisement-interval %u\n", addr
,
6928 if (peergroup_flag_check(peer
, PEER_FLAG_TIMER
))
6929 vty_out(vty
, " neighbor %s timers %u %u\n", addr
,
6930 peer
->keepalive
, peer
->holdtime
);
6932 /* timers connect */
6933 if (peergroup_flag_check(peer
, PEER_FLAG_TIMER_CONNECT
))
6934 vty_out(vty
, " neighbor %s timers connect %u\n", addr
,
6937 /* capability dynamic */
6938 if (peergroup_flag_check(peer
, PEER_FLAG_DYNAMIC_CAPABILITY
))
6939 vty_out(vty
, " neighbor %s capability dynamic\n", addr
);
6941 /* capability extended-nexthop */
6942 if (peergroup_flag_check(peer
, PEER_FLAG_CAPABILITY_ENHE
)) {
6943 if (CHECK_FLAG(peer
->flags_invert
, PEER_FLAG_CAPABILITY_ENHE
))
6945 " no neighbor %s capability extended-nexthop\n",
6949 " neighbor %s capability extended-nexthop\n",
6953 /* dont-capability-negotiation */
6954 if (peergroup_flag_check(peer
, PEER_FLAG_DONT_CAPABILITY
))
6955 vty_out(vty
, " neighbor %s dont-capability-negotiate\n", addr
);
6957 /* override-capability */
6958 if (peergroup_flag_check(peer
, PEER_FLAG_OVERRIDE_CAPABILITY
))
6959 vty_out(vty
, " neighbor %s override-capability\n", addr
);
6961 /* strict-capability-match */
6962 if (peergroup_flag_check(peer
, PEER_FLAG_STRICT_CAP_MATCH
))
6963 vty_out(vty
, " neighbor %s strict-capability-match\n", addr
);
6966 /* BGP peer configuration display function. */
6967 static void bgp_config_write_peer_af(struct vty
*vty
, struct bgp
*bgp
,
6968 struct peer
*peer
, afi_t afi
, safi_t safi
)
6970 struct peer
*g_peer
= NULL
;
6972 bool flag_scomm
, flag_secomm
, flag_slcomm
;
6974 /* Skip dynamic neighbors. */
6975 if (peer_dynamic_neighbor(peer
))
6979 addr
= peer
->conf_if
;
6983 /************************************
6984 ****** Per AF to the neighbor ******
6985 ************************************/
6986 if (peer_group_active(peer
)) {
6987 g_peer
= peer
->group
->conf
;
6989 /* If the peer-group is active but peer is not, print a 'no
6991 if (g_peer
->afc
[afi
][safi
] && !peer
->afc
[afi
][safi
]) {
6992 vty_out(vty
, " no neighbor %s activate\n", addr
);
6995 /* If the peer-group is not active but peer is, print an
6997 else if (!g_peer
->afc
[afi
][safi
] && peer
->afc
[afi
][safi
]) {
6998 vty_out(vty
, " neighbor %s activate\n", addr
);
7001 if (peer
->afc
[afi
][safi
]) {
7002 if ((afi
== AFI_IP
) && (safi
== SAFI_UNICAST
)) {
7003 if (bgp_flag_check(bgp
,
7004 BGP_FLAG_NO_DEFAULT_IPV4
)) {
7005 vty_out(vty
, " neighbor %s activate\n",
7009 vty_out(vty
, " neighbor %s activate\n", addr
);
7011 if ((afi
== AFI_IP
) && (safi
== SAFI_UNICAST
)) {
7012 if (!bgp_flag_check(bgp
,
7013 BGP_FLAG_NO_DEFAULT_IPV4
)) {
7015 " no neighbor %s activate\n",
7022 /* addpath TX knobs */
7023 if (peergroup_af_flag_check(peer
, afi
, safi
,
7024 PEER_FLAG_ADDPATH_TX_ALL_PATHS
)) {
7025 vty_out(vty
, " neighbor %s addpath-tx-all-paths\n", addr
);
7028 if (peergroup_af_flag_check(peer
, afi
, safi
,
7029 PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS
)) {
7030 vty_out(vty
, " neighbor %s addpath-tx-bestpath-per-AS\n",
7034 /* ORF capability. */
7035 if (peergroup_af_flag_check(peer
, afi
, safi
, PEER_FLAG_ORF_PREFIX_SM
)
7036 || peergroup_af_flag_check(peer
, afi
, safi
,
7037 PEER_FLAG_ORF_PREFIX_RM
)) {
7038 vty_out(vty
, " neighbor %s capability orf prefix-list", addr
);
7040 if (peergroup_af_flag_check(peer
, afi
, safi
,
7041 PEER_FLAG_ORF_PREFIX_SM
)
7042 && peergroup_af_flag_check(peer
, afi
, safi
,
7043 PEER_FLAG_ORF_PREFIX_RM
))
7044 vty_out(vty
, " both");
7045 else if (peergroup_af_flag_check(peer
, afi
, safi
,
7046 PEER_FLAG_ORF_PREFIX_SM
))
7047 vty_out(vty
, " send");
7049 vty_out(vty
, " receive");
7053 /* Route reflector client. */
7054 if (peergroup_af_flag_check(peer
, afi
, safi
,
7055 PEER_FLAG_REFLECTOR_CLIENT
)) {
7056 vty_out(vty
, " neighbor %s route-reflector-client\n", addr
);
7059 /* next-hop-self force */
7060 if (peergroup_af_flag_check(peer
, afi
, safi
,
7061 PEER_FLAG_FORCE_NEXTHOP_SELF
)) {
7062 vty_out(vty
, " neighbor %s next-hop-self force\n", addr
);
7066 if (peergroup_af_flag_check(peer
, afi
, safi
, PEER_FLAG_NEXTHOP_SELF
)) {
7067 vty_out(vty
, " neighbor %s next-hop-self\n", addr
);
7070 /* remove-private-AS */
7071 if (peergroup_af_flag_check(peer
, afi
, safi
,
7072 PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE
)) {
7073 vty_out(vty
, " neighbor %s remove-private-AS all replace-AS\n",
7077 else if (peergroup_af_flag_check(peer
, afi
, safi
,
7078 PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE
)) {
7079 vty_out(vty
, " neighbor %s remove-private-AS replace-AS\n",
7083 else if (peergroup_af_flag_check(peer
, afi
, safi
,
7084 PEER_FLAG_REMOVE_PRIVATE_AS_ALL
)) {
7085 vty_out(vty
, " neighbor %s remove-private-AS all\n", addr
);
7088 else if (peergroup_af_flag_check(peer
, afi
, safi
,
7089 PEER_FLAG_REMOVE_PRIVATE_AS
)) {
7090 vty_out(vty
, " neighbor %s remove-private-AS\n", addr
);
7094 if (peergroup_af_flag_check(peer
, afi
, safi
, PEER_FLAG_AS_OVERRIDE
)) {
7095 vty_out(vty
, " neighbor %s as-override\n", addr
);
7098 /* send-community print. */
7099 flag_scomm
= peergroup_af_flag_check(peer
, afi
, safi
,
7100 PEER_FLAG_SEND_COMMUNITY
);
7101 flag_secomm
= peergroup_af_flag_check(peer
, afi
, safi
,
7102 PEER_FLAG_SEND_EXT_COMMUNITY
);
7103 flag_slcomm
= peergroup_af_flag_check(peer
, afi
, safi
,
7104 PEER_FLAG_SEND_LARGE_COMMUNITY
);
7106 if (!bgp_option_check(BGP_OPT_CONFIG_CISCO
)) {
7107 if (flag_scomm
&& flag_secomm
&& flag_slcomm
) {
7108 vty_out(vty
, " no neighbor %s send-community all\n",
7113 " no neighbor %s send-community\n",
7117 " no neighbor %s send-community extended\n",
7122 " no neighbor %s send-community large\n",
7126 if (flag_scomm
&& flag_secomm
&& flag_slcomm
) {
7127 vty_out(vty
, " neighbor %s send-community all\n",
7129 } else if (flag_scomm
&& flag_secomm
) {
7130 vty_out(vty
, " neighbor %s send-community both\n",
7134 vty_out(vty
, " neighbor %s send-community\n",
7138 " neighbor %s send-community extended\n",
7142 " neighbor %s send-community large\n",
7147 /* Default information */
7148 if (peergroup_af_flag_check(peer
, afi
, safi
,
7149 PEER_FLAG_DEFAULT_ORIGINATE
)) {
7150 vty_out(vty
, " neighbor %s default-originate", addr
);
7152 if (peer
->default_rmap
[afi
][safi
].name
)
7153 vty_out(vty
, " route-map %s",
7154 peer
->default_rmap
[afi
][safi
].name
);
7159 /* Soft reconfiguration inbound. */
7160 if (peergroup_af_flag_check(peer
, afi
, safi
, PEER_FLAG_SOFT_RECONFIG
)) {
7161 vty_out(vty
, " neighbor %s soft-reconfiguration inbound\n",
7165 /* maximum-prefix. */
7166 if (peergroup_af_flag_check(peer
, afi
, safi
, PEER_FLAG_MAX_PREFIX
)) {
7167 vty_out(vty
, " neighbor %s maximum-prefix %lu", addr
,
7168 peer
->pmax
[afi
][safi
]);
7170 if (peer
->pmax_threshold
[afi
][safi
]
7171 != MAXIMUM_PREFIX_THRESHOLD_DEFAULT
)
7172 vty_out(vty
, " %u", peer
->pmax_threshold
[afi
][safi
]);
7173 if (peer_af_flag_check(peer
, afi
, safi
,
7174 PEER_FLAG_MAX_PREFIX_WARNING
))
7175 vty_out(vty
, " warning-only");
7176 if (peer
->pmax_restart
[afi
][safi
])
7177 vty_out(vty
, " restart %u",
7178 peer
->pmax_restart
[afi
][safi
]);
7183 /* Route server client. */
7184 if (peergroup_af_flag_check(peer
, afi
, safi
,
7185 PEER_FLAG_RSERVER_CLIENT
)) {
7186 vty_out(vty
, " neighbor %s route-server-client\n", addr
);
7189 /* Nexthop-local unchanged. */
7190 if (peergroup_af_flag_check(peer
, afi
, safi
,
7191 PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED
)) {
7192 vty_out(vty
, " neighbor %s nexthop-local unchanged\n", addr
);
7195 /* allowas-in <1-10> */
7196 if (peergroup_af_flag_check(peer
, afi
, safi
, PEER_FLAG_ALLOWAS_IN
)) {
7197 if (peer_af_flag_check(peer
, afi
, safi
,
7198 PEER_FLAG_ALLOWAS_IN_ORIGIN
)) {
7199 vty_out(vty
, " neighbor %s allowas-in origin\n", addr
);
7200 } else if (peer
->allowas_in
[afi
][safi
] == 3) {
7201 vty_out(vty
, " neighbor %s allowas-in\n", addr
);
7203 vty_out(vty
, " neighbor %s allowas-in %d\n", addr
,
7204 peer
->allowas_in
[afi
][safi
]);
7209 if (peergroup_af_flag_check(peer
, afi
, safi
, PEER_FLAG_WEIGHT
))
7210 vty_out(vty
, " neighbor %s weight %lu\n", addr
,
7211 peer
->weight
[afi
][safi
]);
7214 bgp_config_write_filter(vty
, peer
, afi
, safi
);
7216 /* atribute-unchanged. */
7217 if (peer_af_flag_check(peer
, afi
, safi
, PEER_FLAG_AS_PATH_UNCHANGED
)
7218 || (safi
!= SAFI_EVPN
7219 && peer_af_flag_check(peer
, afi
, safi
,
7220 PEER_FLAG_NEXTHOP_UNCHANGED
))
7221 || peer_af_flag_check(peer
, afi
, safi
, PEER_FLAG_MED_UNCHANGED
)) {
7223 if (!peer_group_active(peer
)
7224 || peergroup_af_flag_check(peer
, afi
, safi
,
7225 PEER_FLAG_AS_PATH_UNCHANGED
)
7226 || peergroup_af_flag_check(peer
, afi
, safi
,
7227 PEER_FLAG_NEXTHOP_UNCHANGED
)
7228 || peergroup_af_flag_check(peer
, afi
, safi
,
7229 PEER_FLAG_MED_UNCHANGED
)) {
7232 " neighbor %s attribute-unchanged%s%s%s\n",
7234 peer_af_flag_check(peer
, afi
, safi
,
7235 PEER_FLAG_AS_PATH_UNCHANGED
)
7238 peer_af_flag_check(peer
, afi
, safi
,
7239 PEER_FLAG_NEXTHOP_UNCHANGED
)
7242 peer_af_flag_check(peer
, afi
, safi
,
7243 PEER_FLAG_MED_UNCHANGED
)
7250 /* Address family based peer configuration display. */
7251 static void bgp_config_write_family(struct vty
*vty
, struct bgp
*bgp
, afi_t afi
,
7255 struct peer_group
*group
;
7256 struct listnode
*node
, *nnode
;
7259 vty_frame(vty
, " !\n address-family ");
7260 if (afi
== AFI_IP
) {
7261 if (safi
== SAFI_UNICAST
)
7262 vty_frame(vty
, "ipv4 unicast");
7263 else if (safi
== SAFI_LABELED_UNICAST
)
7264 vty_frame(vty
, "ipv4 labeled-unicast");
7265 else if (safi
== SAFI_MULTICAST
)
7266 vty_frame(vty
, "ipv4 multicast");
7267 else if (safi
== SAFI_MPLS_VPN
)
7268 vty_frame(vty
, "ipv4 vpn");
7269 else if (safi
== SAFI_ENCAP
)
7270 vty_frame(vty
, "ipv4 encap");
7271 else if (safi
== SAFI_FLOWSPEC
)
7272 vty_frame(vty
, "ipv4 flowspec");
7273 } else if (afi
== AFI_IP6
) {
7274 if (safi
== SAFI_UNICAST
)
7275 vty_frame(vty
, "ipv6 unicast");
7276 else if (safi
== SAFI_LABELED_UNICAST
)
7277 vty_frame(vty
, "ipv6 labeled-unicast");
7278 else if (safi
== SAFI_MULTICAST
)
7279 vty_frame(vty
, "ipv6 multicast");
7280 else if (safi
== SAFI_MPLS_VPN
)
7281 vty_frame(vty
, "ipv6 vpn");
7282 else if (safi
== SAFI_ENCAP
)
7283 vty_frame(vty
, "ipv6 encap");
7284 else if (safi
== SAFI_FLOWSPEC
)
7285 vty_frame(vty
, "ipv6 flowspec");
7286 } else if (afi
== AFI_L2VPN
) {
7287 if (safi
== SAFI_EVPN
)
7288 vty_frame(vty
, "l2vpn evpn");
7290 vty_frame(vty
, "\n");
7292 bgp_config_write_distance(vty
, bgp
, afi
, safi
);
7294 bgp_config_write_network(vty
, bgp
, afi
, safi
);
7296 bgp_config_write_redistribute(vty
, bgp
, afi
, safi
);
7298 for (ALL_LIST_ELEMENTS(bgp
->group
, node
, nnode
, group
))
7299 bgp_config_write_peer_af(vty
, bgp
, group
->conf
, afi
, safi
);
7301 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
7302 /* Skip dynamic neighbors. */
7303 if (peer_dynamic_neighbor(peer
))
7306 /* Do not display doppelganger peers */
7307 if (CHECK_FLAG(peer
->flags
, PEER_FLAG_CONFIG_NODE
))
7308 bgp_config_write_peer_af(vty
, bgp
, peer
, afi
, safi
);
7311 bgp_config_write_maxpaths(vty
, bgp
, afi
, safi
);
7312 bgp_config_write_table_map(vty
, bgp
, afi
, safi
);
7314 if (safi
== SAFI_EVPN
)
7315 bgp_config_write_evpn_info(vty
, bgp
, afi
, safi
);
7317 if (safi
== SAFI_FLOWSPEC
)
7318 bgp_fs_config_write_pbr(vty
, bgp
, afi
, safi
);
7320 if (safi
== SAFI_UNICAST
) {
7321 bgp_vpn_policy_config_write_afi(vty
, bgp
, afi
);
7322 if (CHECK_FLAG(bgp
->af_flags
[afi
][safi
],
7323 BGP_CONFIG_VRF_TO_MPLSVPN_EXPORT
)) {
7325 vty_out(vty
, " export vpn\n");
7327 if (CHECK_FLAG(bgp
->af_flags
[afi
][safi
],
7328 BGP_CONFIG_MPLSVPN_TO_VRF_IMPORT
)) {
7330 vty_out(vty
, " import vpn\n");
7332 if (CHECK_FLAG(bgp
->af_flags
[afi
][safi
],
7333 BGP_CONFIG_VRF_TO_VRF_IMPORT
)) {
7334 struct listnode
*node
;
7337 for (ALL_LIST_ELEMENTS_RO(
7338 bgp
->vpn_policy
[afi
].import_vrf
, node
,
7340 vty_out(vty
, " import vrf %s\n", name
);
7344 vty_endframe(vty
, " exit-address-family\n");
7347 /* clang-format off */
7348 #if CONFDATE > 20180517
7349 CPP_NOTICE("bgpd: remove 'bgp enforce-first-as' config migration from bgp_config_write")
7351 /* clang-format on */
7353 int bgp_config_write(struct vty
*vty
)
7357 struct peer_group
*group
;
7359 struct listnode
*node
, *nnode
;
7360 struct listnode
*mnode
, *mnnode
;
7362 /* BGP Multiple instance. */
7363 if (!bgp_option_check(BGP_OPT_MULTIPLE_INSTANCE
)) {
7364 vty_out(vty
, "no bgp multiple-instance\n");
7368 /* BGP Config type. */
7369 if (bgp_option_check(BGP_OPT_CONFIG_CISCO
)) {
7370 vty_out(vty
, "bgp config-type cisco\n");
7374 if (bm
->rmap_update_timer
!= RMAP_DEFAULT_UPDATE_TIMER
)
7375 vty_out(vty
, "bgp route-map delay-timer %u\n",
7376 bm
->rmap_update_timer
);
7379 vty_out(vty
, "!\n");
7381 /* BGP configuration. */
7382 for (ALL_LIST_ELEMENTS(bm
->bgp
, mnode
, mnnode
, bgp
)) {
7384 /* skip all auto created vrf as they dont have user config */
7385 if (CHECK_FLAG(bgp
->vrf_flags
, BGP_VRF_AUTO
))
7388 /* Migrate deprecated 'bgp enforce-first-as'
7389 * config to 'neighbor * enforce-first-as' configs
7391 if (bgp_flag_check(bgp
, BGP_FLAG_ENFORCE_FIRST_AS
)) {
7392 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
))
7393 peer_flag_set(peer
, PEER_FLAG_ENFORCE_FIRST_AS
);
7394 bgp_flag_unset(bgp
, BGP_FLAG_ENFORCE_FIRST_AS
);
7397 /* Router bgp ASN */
7398 vty_out(vty
, "router bgp %u", bgp
->as
);
7400 if (bgp_option_check(BGP_OPT_MULTIPLE_INSTANCE
)) {
7402 vty_out(vty
, " %s %s",
7404 == BGP_INSTANCE_TYPE_VIEW
)
7411 /* No Synchronization */
7412 if (bgp_option_check(BGP_OPT_CONFIG_CISCO
))
7413 vty_out(vty
, " no synchronization\n");
7415 /* BGP fast-external-failover. */
7416 if (CHECK_FLAG(bgp
->flags
, BGP_FLAG_NO_FAST_EXT_FAILOVER
))
7417 vty_out(vty
, " no bgp fast-external-failover\n");
7419 /* BGP router ID. */
7420 if (bgp
->router_id_static
.s_addr
!= 0)
7421 vty_out(vty
, " bgp router-id %s\n",
7422 inet_ntoa(bgp
->router_id_static
));
7424 /* BGP log-neighbor-changes. */
7425 if (!!bgp_flag_check(bgp
, BGP_FLAG_LOG_NEIGHBOR_CHANGES
)
7426 != DFLT_BGP_LOG_NEIGHBOR_CHANGES
)
7427 vty_out(vty
, " %sbgp log-neighbor-changes\n",
7429 BGP_FLAG_LOG_NEIGHBOR_CHANGES
)
7433 /* BGP configuration. */
7434 if (bgp_flag_check(bgp
, BGP_FLAG_ALWAYS_COMPARE_MED
))
7435 vty_out(vty
, " bgp always-compare-med\n");
7437 /* BGP default ipv4-unicast. */
7438 if (bgp_flag_check(bgp
, BGP_FLAG_NO_DEFAULT_IPV4
))
7439 vty_out(vty
, " no bgp default ipv4-unicast\n");
7441 /* BGP default local-preference. */
7442 if (bgp
->default_local_pref
!= BGP_DEFAULT_LOCAL_PREF
)
7443 vty_out(vty
, " bgp default local-preference %u\n",
7444 bgp
->default_local_pref
);
7446 /* BGP default show-hostname */
7447 if (!!bgp_flag_check(bgp
, BGP_FLAG_SHOW_HOSTNAME
)
7448 != DFLT_BGP_SHOW_HOSTNAME
)
7449 vty_out(vty
, " %sbgp default show-hostname\n",
7450 bgp_flag_check(bgp
, BGP_FLAG_SHOW_HOSTNAME
)
7454 /* BGP default subgroup-pkt-queue-max. */
7455 if (bgp
->default_subgroup_pkt_queue_max
7456 != BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX
)
7457 vty_out(vty
, " bgp default subgroup-pkt-queue-max %u\n",
7458 bgp
->default_subgroup_pkt_queue_max
);
7460 /* BGP client-to-client reflection. */
7461 if (bgp_flag_check(bgp
, BGP_FLAG_NO_CLIENT_TO_CLIENT
))
7462 vty_out(vty
, " no bgp client-to-client reflection\n");
7464 /* BGP cluster ID. */
7465 if (CHECK_FLAG(bgp
->config
, BGP_CONFIG_CLUSTER_ID
))
7466 vty_out(vty
, " bgp cluster-id %s\n",
7467 inet_ntoa(bgp
->cluster_id
));
7469 /* Disable ebgp connected nexthop check */
7470 if (bgp_flag_check(bgp
, BGP_FLAG_DISABLE_NH_CONNECTED_CHK
))
7472 " bgp disable-ebgp-connected-route-check\n");
7474 /* Confederation identifier*/
7475 if (CHECK_FLAG(bgp
->config
, BGP_CONFIG_CONFEDERATION
))
7476 vty_out(vty
, " bgp confederation identifier %i\n",
7479 /* Confederation peer */
7480 if (bgp
->confed_peers_cnt
> 0) {
7483 vty_out(vty
, " bgp confederation peers");
7485 for (i
= 0; i
< bgp
->confed_peers_cnt
; i
++)
7486 vty_out(vty
, " %u", bgp
->confed_peers
[i
]);
7491 /* BGP deterministic-med. */
7492 if (!!bgp_flag_check(bgp
, BGP_FLAG_DETERMINISTIC_MED
)
7493 != DFLT_BGP_DETERMINISTIC_MED
)
7494 vty_out(vty
, " %sbgp deterministic-med\n",
7495 bgp_flag_check(bgp
, BGP_FLAG_DETERMINISTIC_MED
)
7499 /* BGP update-delay. */
7500 bgp_config_write_update_delay(vty
, bgp
);
7502 if (bgp
->v_maxmed_onstartup
7503 != BGP_MAXMED_ONSTARTUP_UNCONFIGURED
) {
7504 vty_out(vty
, " bgp max-med on-startup %u",
7505 bgp
->v_maxmed_onstartup
);
7506 if (bgp
->maxmed_onstartup_value
7507 != BGP_MAXMED_VALUE_DEFAULT
)
7509 bgp
->maxmed_onstartup_value
);
7512 if (bgp
->v_maxmed_admin
!= BGP_MAXMED_ADMIN_UNCONFIGURED
) {
7513 vty_out(vty
, " bgp max-med administrative");
7514 if (bgp
->maxmed_admin_value
!= BGP_MAXMED_VALUE_DEFAULT
)
7515 vty_out(vty
, " %u", bgp
->maxmed_admin_value
);
7520 bgp_config_write_wpkt_quanta(vty
, bgp
);
7522 bgp_config_write_rpkt_quanta(vty
, bgp
);
7525 bgp_config_write_coalesce_time(vty
, bgp
);
7527 /* BGP graceful-restart. */
7528 if (bgp
->stalepath_time
!= BGP_DEFAULT_STALEPATH_TIME
)
7530 " bgp graceful-restart stalepath-time %u\n",
7531 bgp
->stalepath_time
);
7532 if (bgp
->restart_time
!= BGP_DEFAULT_RESTART_TIME
)
7533 vty_out(vty
, " bgp graceful-restart restart-time %u\n",
7535 if (bgp_flag_check(bgp
, BGP_FLAG_GRACEFUL_RESTART
))
7536 vty_out(vty
, " bgp graceful-restart\n");
7538 /* BGP graceful-shutdown */
7539 if (bgp_flag_check(bgp
, BGP_FLAG_GRACEFUL_SHUTDOWN
))
7540 vty_out(vty
, " bgp graceful-shutdown\n");
7542 /* BGP graceful-restart Preserve State F bit. */
7543 if (bgp_flag_check(bgp
, BGP_FLAG_GR_PRESERVE_FWD
))
7545 " bgp graceful-restart preserve-fw-state\n");
7547 /* BGP bestpath method. */
7548 if (bgp_flag_check(bgp
, BGP_FLAG_ASPATH_IGNORE
))
7549 vty_out(vty
, " bgp bestpath as-path ignore\n");
7550 if (bgp_flag_check(bgp
, BGP_FLAG_ASPATH_CONFED
))
7551 vty_out(vty
, " bgp bestpath as-path confed\n");
7553 if (bgp_flag_check(bgp
, BGP_FLAG_ASPATH_MULTIPATH_RELAX
)) {
7554 if (bgp_flag_check(bgp
,
7555 BGP_FLAG_MULTIPATH_RELAX_AS_SET
)) {
7557 " bgp bestpath as-path multipath-relax as-set\n");
7560 " bgp bestpath as-path multipath-relax\n");
7564 if (bgp_flag_check(bgp
, BGP_FLAG_RR_ALLOW_OUTBOUND_POLICY
)) {
7566 " bgp route-reflector allow-outbound-policy\n");
7568 if (bgp_flag_check(bgp
, BGP_FLAG_COMPARE_ROUTER_ID
))
7569 vty_out(vty
, " bgp bestpath compare-routerid\n");
7570 if (bgp_flag_check(bgp
, BGP_FLAG_MED_CONFED
)
7571 || bgp_flag_check(bgp
, BGP_FLAG_MED_MISSING_AS_WORST
)) {
7572 vty_out(vty
, " bgp bestpath med");
7573 if (bgp_flag_check(bgp
, BGP_FLAG_MED_CONFED
))
7574 vty_out(vty
, " confed");
7575 if (bgp_flag_check(bgp
, BGP_FLAG_MED_MISSING_AS_WORST
))
7576 vty_out(vty
, " missing-as-worst");
7580 /* BGP network import check. */
7581 if (!!bgp_flag_check(bgp
, BGP_FLAG_IMPORT_CHECK
)
7582 != DFLT_BGP_IMPORT_CHECK
)
7583 vty_out(vty
, " %sbgp network import-check\n",
7584 bgp_flag_check(bgp
, BGP_FLAG_IMPORT_CHECK
)
7588 /* BGP flag dampening. */
7589 if (CHECK_FLAG(bgp
->af_flags
[AFI_IP
][SAFI_UNICAST
],
7590 BGP_CONFIG_DAMPENING
))
7591 bgp_config_write_damp(vty
);
7593 /* BGP timers configuration. */
7594 if (bgp
->default_keepalive
!= BGP_DEFAULT_KEEPALIVE
7595 && bgp
->default_holdtime
!= BGP_DEFAULT_HOLDTIME
)
7596 vty_out(vty
, " timers bgp %u %u\n",
7597 bgp
->default_keepalive
, bgp
->default_holdtime
);
7600 for (ALL_LIST_ELEMENTS(bgp
->group
, node
, nnode
, group
)) {
7601 bgp_config_write_peer_global(vty
, bgp
, group
->conf
);
7604 /* Normal neighbor configuration. */
7605 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
7606 if (CHECK_FLAG(peer
->flags
, PEER_FLAG_CONFIG_NODE
))
7607 bgp_config_write_peer_global(vty
, bgp
, peer
);
7610 /* listen range and limit for dynamic BGP neighbors */
7611 bgp_config_write_listen(vty
, bgp
);
7614 * BGP default autoshutdown neighbors
7616 * This must be placed after any peer and peer-group
7617 * configuration, to avoid setting all peers to shutdown after
7618 * a daemon restart, which is undesired behavior. (see #2286)
7620 if (bgp
->autoshutdown
)
7621 vty_out(vty
, " bgp default shutdown\n");
7623 /* No auto-summary */
7624 if (bgp_option_check(BGP_OPT_CONFIG_CISCO
))
7625 vty_out(vty
, " no auto-summary\n");
7627 /* IPv4 unicast configuration. */
7628 bgp_config_write_family(vty
, bgp
, AFI_IP
, SAFI_UNICAST
);
7630 /* IPv4 multicast configuration. */
7631 bgp_config_write_family(vty
, bgp
, AFI_IP
, SAFI_MULTICAST
);
7633 /* IPv4 labeled-unicast configuration. */
7634 bgp_config_write_family(vty
, bgp
, AFI_IP
, SAFI_LABELED_UNICAST
);
7636 /* IPv4 VPN configuration. */
7637 bgp_config_write_family(vty
, bgp
, AFI_IP
, SAFI_MPLS_VPN
);
7639 /* ENCAPv4 configuration. */
7640 bgp_config_write_family(vty
, bgp
, AFI_IP
, SAFI_ENCAP
);
7642 /* FLOWSPEC v4 configuration. */
7643 bgp_config_write_family(vty
, bgp
, AFI_IP
, SAFI_FLOWSPEC
);
7645 /* IPv6 unicast configuration. */
7646 bgp_config_write_family(vty
, bgp
, AFI_IP6
, SAFI_UNICAST
);
7648 /* IPv6 multicast configuration. */
7649 bgp_config_write_family(vty
, bgp
, AFI_IP6
, SAFI_MULTICAST
);
7651 /* IPv6 labeled-unicast configuration. */
7652 bgp_config_write_family(vty
, bgp
, AFI_IP6
,
7653 SAFI_LABELED_UNICAST
);
7655 /* IPv6 VPN configuration. */
7656 bgp_config_write_family(vty
, bgp
, AFI_IP6
, SAFI_MPLS_VPN
);
7658 /* ENCAPv6 configuration. */
7659 bgp_config_write_family(vty
, bgp
, AFI_IP6
, SAFI_ENCAP
);
7661 /* FLOWSPEC v6 configuration. */
7662 bgp_config_write_family(vty
, bgp
, AFI_IP6
, SAFI_FLOWSPEC
);
7664 /* EVPN configuration. */
7665 bgp_config_write_family(vty
, bgp
, AFI_L2VPN
, SAFI_EVPN
);
7668 bgp_rfapi_cfg_write(vty
, bgp
);
7671 vty_out(vty
, "!\n");
7676 void bgp_master_init(struct thread_master
*master
)
7680 memset(&bgp_master
, 0, sizeof(struct bgp_master
));
7683 bm
->bgp
= list_new();
7684 bm
->listen_sockets
= list_new();
7685 bm
->port
= BGP_PORT_DEFAULT
;
7686 bm
->master
= master
;
7687 bm
->start_time
= bgp_clock();
7688 bm
->t_rmap_update
= NULL
;
7689 bm
->rmap_update_timer
= RMAP_DEFAULT_UPDATE_TIMER
;
7690 bm
->terminating
= false;
7692 bgp_process_queue_init();
7694 /* init the rd id space.
7695 assign 0th index in the bitfield,
7696 so that we start with id 1
7698 bf_init(bm
->rd_idspace
, UINT16_MAX
);
7699 bf_assign_zero_index(bm
->rd_idspace
);
7701 /* Enable multiple instances by default. */
7702 bgp_option_set(BGP_OPT_MULTIPLE_INSTANCE
);
7704 /* mpls label dynamic allocation pool */
7705 bgp_lp_init(bm
->master
, &bm
->labelpool
);
7707 QOBJ_REG(bm
, bgp_master
);
7711 * Free up connected routes and interfaces for a BGP instance. Invoked upon
7712 * instance delete (non-default only) or BGP exit.
7714 static void bgp_if_finish(struct bgp
*bgp
)
7716 struct vrf
*vrf
= vrf_lookup_by_id(bgp
->vrf_id
);
7717 struct interface
*ifp
;
7719 if (bgp
->inst_type
== BGP_INSTANCE_TYPE_VIEW
|| !vrf
)
7722 FOR_ALL_INTERFACES (vrf
, ifp
) {
7723 struct listnode
*c_node
, *c_nnode
;
7724 struct connected
*c
;
7726 for (ALL_LIST_ELEMENTS(ifp
->connected
, c_node
, c_nnode
, c
))
7727 bgp_connected_delete(bgp
, c
);
7731 static void bgp_viewvrf_autocomplete(vector comps
, struct cmd_token
*token
)
7733 struct vrf
*vrf
= NULL
;
7734 struct listnode
*next
;
7737 RB_FOREACH (vrf
, vrf_name_head
, &vrfs_by_name
) {
7738 if (vrf
->vrf_id
!= VRF_DEFAULT
)
7739 vector_set(comps
, XSTRDUP(MTYPE_COMPLETION
, vrf
->name
));
7742 for (ALL_LIST_ELEMENTS_RO(bm
->bgp
, next
, bgp
)) {
7743 if (bgp
->inst_type
!= BGP_INSTANCE_TYPE_VIEW
)
7746 vector_set(comps
, XSTRDUP(MTYPE_COMPLETION
, bgp
->name
));
7750 static const struct cmd_variable_handler bgp_viewvrf_var_handlers
[] = {
7751 {.tokenname
= "VIEWVRFNAME", .completions
= bgp_viewvrf_autocomplete
},
7752 {.completions
= NULL
},
7755 static void bgp_pthreads_init()
7759 struct frr_pthread_attr io
= {
7761 .start
= frr_pthread_attr_default
.start
,
7762 .stop
= frr_pthread_attr_default
.stop
,
7764 struct frr_pthread_attr ka
= {
7765 .id
= PTHREAD_KEEPALIVES
,
7766 .start
= bgp_keepalives_start
,
7767 .stop
= bgp_keepalives_stop
,
7769 frr_pthread_new(&io
, "BGP I/O thread");
7770 frr_pthread_new(&ka
, "BGP Keepalives thread");
7773 void bgp_pthreads_run()
7775 struct frr_pthread
*io
= frr_pthread_get(PTHREAD_IO
);
7776 struct frr_pthread
*ka
= frr_pthread_get(PTHREAD_KEEPALIVES
);
7778 frr_pthread_run(io
, NULL
);
7779 frr_pthread_run(ka
, NULL
);
7781 /* Wait until threads are ready. */
7782 frr_pthread_wait_running(io
);
7783 frr_pthread_wait_running(ka
);
7786 void bgp_pthreads_finish()
7788 frr_pthread_stop_all();
7789 frr_pthread_finish();
7795 /* allocates some vital data structures used by peer commands in
7798 /* pre-init pthreads */
7799 bgp_pthreads_init();
7802 bgp_zebra_init(bm
->master
);
7805 vnc_zebra_init(bm
->master
);
7808 /* BGP VTY commands installation. */
7816 bgp_route_map_init();
7817 bgp_scan_vty_init();
7822 bgp_ethernetvpn_init();
7823 bgp_flowspec_vty_init();
7825 /* Access list initialize. */
7827 access_list_add_hook(peer_distribute_update
);
7828 access_list_delete_hook(peer_distribute_update
);
7830 /* Filter list initialize. */
7832 as_list_add_hook(peer_aslist_add
);
7833 as_list_delete_hook(peer_aslist_del
);
7835 /* Prefix list initialize.*/
7837 prefix_list_add_hook(peer_prefix_list_update
);
7838 prefix_list_delete_hook(peer_prefix_list_update
);
7840 /* Community list initialize. */
7841 bgp_clist
= community_list_init();
7846 cmd_variable_handler_register(bgp_viewvrf_var_handlers
);
7849 void bgp_terminate(void)
7853 struct listnode
*node
, *nnode
;
7854 struct listnode
*mnode
, *mnnode
;
7858 /* Close the listener sockets first as this prevents peers from
7860 * to reconnect on receiving the peer unconfig message. In the presence
7861 * of a large number of peers this will ensure that no peer is left with
7862 * a dangling connection
7864 /* reverse bgp_master_init */
7867 if (bm
->listen_sockets
)
7868 list_delete_and_null(&bm
->listen_sockets
);
7870 for (ALL_LIST_ELEMENTS(bm
->bgp
, mnode
, mnnode
, bgp
))
7871 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
))
7872 if (peer
->status
== Established
7873 || peer
->status
== OpenSent
7874 || peer
->status
== OpenConfirm
)
7875 bgp_notify_send(peer
, BGP_NOTIFY_CEASE
,
7876 BGP_NOTIFY_CEASE_PEER_UNCONFIG
);
7878 if (bm
->process_main_queue
)
7879 work_queue_free_and_null(&bm
->process_main_queue
);
7881 if (bm
->t_rmap_update
)
7882 BGP_TIMER_OFF(bm
->t_rmap_update
);