1 /* BGP routing information
2 * Copyright (C) 1996, 97, 98, 99 Kunihiro Ishiguro
3 * Copyright (C) 2016 Job Snijders <job@instituut.net>
5 * This file is part of GNU Zebra.
7 * GNU Zebra is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; either version 2, or (at your option) any
12 * GNU Zebra is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
17 * You should have received a copy of the GNU General Public License along
18 * with this program; see the file COPYING; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
34 #include "sockunion.h"
37 #include "workqueue.h"
41 #include "lib_errors.h"
43 #include "bgpd/bgpd.h"
44 #include "bgpd/bgp_table.h"
45 #include "bgpd/bgp_route.h"
46 #include "bgpd/bgp_attr.h"
47 #include "bgpd/bgp_debug.h"
48 #include "bgpd/bgp_errors.h"
49 #include "bgpd/bgp_aspath.h"
50 #include "bgpd/bgp_regex.h"
51 #include "bgpd/bgp_community.h"
52 #include "bgpd/bgp_ecommunity.h"
53 #include "bgpd/bgp_lcommunity.h"
54 #include "bgpd/bgp_clist.h"
55 #include "bgpd/bgp_packet.h"
56 #include "bgpd/bgp_filter.h"
57 #include "bgpd/bgp_fsm.h"
58 #include "bgpd/bgp_mplsvpn.h"
59 #include "bgpd/bgp_nexthop.h"
60 #include "bgpd/bgp_damp.h"
61 #include "bgpd/bgp_advertise.h"
62 #include "bgpd/bgp_zebra.h"
63 #include "bgpd/bgp_vty.h"
64 #include "bgpd/bgp_mpath.h"
65 #include "bgpd/bgp_nht.h"
66 #include "bgpd/bgp_updgrp.h"
67 #include "bgpd/bgp_label.h"
70 #include "bgpd/rfapi/rfapi_backend.h"
71 #include "bgpd/rfapi/vnc_import_bgp.h"
72 #include "bgpd/rfapi/vnc_export_bgp.h"
74 #include "bgpd/bgp_encap_types.h"
75 #include "bgpd/bgp_encap_tlv.h"
76 #include "bgpd/bgp_evpn.h"
77 #include "bgpd/bgp_evpn_vty.h"
78 #include "bgpd/bgp_flowspec.h"
79 #include "bgpd/bgp_flowspec_util.h"
80 #include "bgpd/bgp_pbr.h"
82 #ifndef VTYSH_EXTRACT_PL
83 #include "bgpd/bgp_route_clippy.c"
86 /* Extern from bgp_dump.c */
87 extern const char *bgp_origin_str
[];
88 extern const char *bgp_origin_long_str
[];
91 #define PMSI_TNLTYPE_STR_NO_INFO "No info"
92 #define PMSI_TNLTYPE_STR_DEFAULT PMSI_TNLTYPE_STR_NO_INFO
93 static const struct message bgp_pmsi_tnltype_str
[] = {
94 {PMSI_TNLTYPE_NO_INFO
, PMSI_TNLTYPE_STR_NO_INFO
},
95 {PMSI_TNLTYPE_RSVP_TE_P2MP
, "RSVP-TE P2MP"},
96 {PMSI_TNLTYPE_MLDP_P2MP
, "mLDP P2MP"},
97 {PMSI_TNLTYPE_PIM_SSM
, "PIM-SSM"},
98 {PMSI_TNLTYPE_PIM_SM
, "PIM-SM"},
99 {PMSI_TNLTYPE_PIM_BIDIR
, "PIM-BIDIR"},
100 {PMSI_TNLTYPE_INGR_REPL
, "Ingress Replication"},
101 {PMSI_TNLTYPE_MLDP_MP2MP
, "mLDP MP2MP"},
105 #define VRFID_NONE_STR "-"
107 struct bgp_node
*bgp_afi_node_get(struct bgp_table
*table
, afi_t afi
,
108 safi_t safi
, struct prefix
*p
,
109 struct prefix_rd
*prd
)
112 struct bgp_node
*prn
= NULL
;
118 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_ENCAP
)
119 || (safi
== SAFI_EVPN
)) {
120 prn
= bgp_node_get(table
, (struct prefix
*)prd
);
122 if (prn
->info
== NULL
)
123 prn
->info
= bgp_table_init(table
->bgp
, afi
, safi
);
125 bgp_unlock_node(prn
);
129 rn
= bgp_node_get(table
, p
);
131 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_ENCAP
)
132 || (safi
== SAFI_EVPN
))
138 struct bgp_node
*bgp_afi_node_lookup(struct bgp_table
*table
, afi_t afi
,
139 safi_t safi
, struct prefix
*p
,
140 struct prefix_rd
*prd
)
143 struct bgp_node
*prn
= NULL
;
148 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_ENCAP
)
149 || (safi
== SAFI_EVPN
)) {
150 prn
= bgp_node_lookup(table
, (struct prefix
*)prd
);
154 if (prn
->info
== NULL
) {
155 bgp_unlock_node(prn
);
162 rn
= bgp_node_lookup(table
, p
);
167 /* Allocate bgp_path_info_extra */
168 static struct bgp_path_info_extra
*bgp_path_info_extra_new(void)
170 struct bgp_path_info_extra
*new;
171 new = XCALLOC(MTYPE_BGP_ROUTE_EXTRA
,
172 sizeof(struct bgp_path_info_extra
));
173 new->label
[0] = MPLS_INVALID_LABEL
;
178 static void bgp_path_info_extra_free(struct bgp_path_info_extra
**extra
)
180 struct bgp_path_info_extra
*e
;
182 if (!extra
|| !*extra
)
187 bgp_damp_info_free(e
->damp_info
, 0);
191 struct bgp_path_info
*bpi
= (struct bgp_path_info
*)e
->parent
;
194 /* FIXME: since multiple e may have the same e->parent
195 * and e->parent->net is holding a refcount for each
196 * of them, we need to do some fudging here.
198 * WARNING: if bpi->net->lock drops to 0, bpi may be
199 * freed as well (because bpi->net was holding the
200 * last reference to bpi) => write after free!
204 bpi
= bgp_path_info_lock(bpi
);
205 refcount
= bpi
->net
->lock
- 1;
206 bgp_unlock_node((struct bgp_node
*)bpi
->net
);
209 bgp_path_info_unlock(bpi
);
211 bgp_path_info_unlock(e
->parent
);
216 bgp_unlock(e
->bgp_orig
);
218 if ((*extra
)->bgp_fs_pbr
)
219 list_delete(&((*extra
)->bgp_fs_pbr
));
220 XFREE(MTYPE_BGP_ROUTE_EXTRA
, *extra
);
225 /* Get bgp_path_info extra information for the given bgp_path_info, lazy
226 * allocated if required.
228 struct bgp_path_info_extra
*bgp_path_info_extra_get(struct bgp_path_info
*pi
)
231 pi
->extra
= bgp_path_info_extra_new();
235 /* Allocate new bgp info structure. */
236 struct bgp_path_info
*bgp_path_info_new(void)
238 return XCALLOC(MTYPE_BGP_ROUTE
, sizeof(struct bgp_path_info
));
241 /* Free bgp route information. */
242 static void bgp_path_info_free(struct bgp_path_info
*path
)
245 bgp_attr_unintern(&path
->attr
);
247 bgp_unlink_nexthop(path
);
248 bgp_path_info_extra_free(&path
->extra
);
249 bgp_path_info_mpath_free(&path
->mpath
);
251 peer_unlock(path
->peer
); /* bgp_path_info peer reference */
253 XFREE(MTYPE_BGP_ROUTE
, path
);
256 struct bgp_path_info
*bgp_path_info_lock(struct bgp_path_info
*path
)
262 struct bgp_path_info
*bgp_path_info_unlock(struct bgp_path_info
*path
)
264 assert(path
&& path
->lock
> 0);
267 if (path
->lock
== 0) {
269 zlog_debug ("%s: unlocked and freeing", __func__
);
270 zlog_backtrace (LOG_DEBUG
);
272 bgp_path_info_free(path
);
279 zlog_debug ("%s: unlocked to 1", __func__
);
280 zlog_backtrace (LOG_DEBUG
);
287 void bgp_path_info_add(struct bgp_node
*rn
, struct bgp_path_info
*pi
)
289 struct bgp_path_info
*top
;
299 bgp_path_info_lock(pi
);
301 peer_lock(pi
->peer
); /* bgp_path_info peer reference */
304 /* Do the actual removal of info from RIB, for use by bgp_process
305 completion callback *only* */
306 void bgp_path_info_reap(struct bgp_node
*rn
, struct bgp_path_info
*pi
)
309 pi
->next
->prev
= pi
->prev
;
311 pi
->prev
->next
= pi
->next
;
315 bgp_path_info_mpath_dequeue(pi
);
316 bgp_path_info_unlock(pi
);
320 void bgp_path_info_delete(struct bgp_node
*rn
, struct bgp_path_info
*pi
)
322 bgp_path_info_set_flag(rn
, pi
, BGP_PATH_REMOVED
);
323 /* set of previous already took care of pcount */
324 UNSET_FLAG(pi
->flags
, BGP_PATH_VALID
);
327 /* undo the effects of a previous call to bgp_path_info_delete; typically
328 called when a route is deleted and then quickly re-added before the
329 deletion has been processed */
330 void bgp_path_info_restore(struct bgp_node
*rn
, struct bgp_path_info
*pi
)
332 bgp_path_info_unset_flag(rn
, pi
, BGP_PATH_REMOVED
);
333 /* unset of previous already took care of pcount */
334 SET_FLAG(pi
->flags
, BGP_PATH_VALID
);
337 /* Adjust pcount as required */
338 static void bgp_pcount_adjust(struct bgp_node
*rn
, struct bgp_path_info
*pi
)
340 struct bgp_table
*table
;
342 assert(rn
&& bgp_node_table(rn
));
343 assert(pi
&& pi
->peer
&& pi
->peer
->bgp
);
345 table
= bgp_node_table(rn
);
347 if (pi
->peer
== pi
->peer
->bgp
->peer_self
)
350 if (!BGP_PATH_COUNTABLE(pi
)
351 && CHECK_FLAG(pi
->flags
, BGP_PATH_COUNTED
)) {
353 UNSET_FLAG(pi
->flags
, BGP_PATH_COUNTED
);
355 /* slight hack, but more robust against errors. */
356 if (pi
->peer
->pcount
[table
->afi
][table
->safi
])
357 pi
->peer
->pcount
[table
->afi
][table
->safi
]--;
359 flog_err(EC_LIB_DEVELOPMENT
,
360 "Asked to decrement 0 prefix count for peer");
361 } else if (BGP_PATH_COUNTABLE(pi
)
362 && !CHECK_FLAG(pi
->flags
, BGP_PATH_COUNTED
)) {
363 SET_FLAG(pi
->flags
, BGP_PATH_COUNTED
);
364 pi
->peer
->pcount
[table
->afi
][table
->safi
]++;
368 static int bgp_label_index_differs(struct bgp_path_info
*pi1
,
369 struct bgp_path_info
*pi2
)
371 return (!(pi1
->attr
->label_index
== pi2
->attr
->label_index
));
374 /* Set/unset bgp_path_info flags, adjusting any other state as needed.
375 * This is here primarily to keep prefix-count in check.
377 void bgp_path_info_set_flag(struct bgp_node
*rn
, struct bgp_path_info
*pi
,
380 SET_FLAG(pi
->flags
, flag
);
382 /* early bath if we know it's not a flag that changes countability state
384 if (!CHECK_FLAG(flag
,
385 BGP_PATH_VALID
| BGP_PATH_HISTORY
| BGP_PATH_REMOVED
))
388 bgp_pcount_adjust(rn
, pi
);
391 void bgp_path_info_unset_flag(struct bgp_node
*rn
, struct bgp_path_info
*pi
,
394 UNSET_FLAG(pi
->flags
, flag
);
396 /* early bath if we know it's not a flag that changes countability state
398 if (!CHECK_FLAG(flag
,
399 BGP_PATH_VALID
| BGP_PATH_HISTORY
| BGP_PATH_REMOVED
))
402 bgp_pcount_adjust(rn
, pi
);
405 /* Get MED value. If MED value is missing and "bgp bestpath
406 missing-as-worst" is specified, treat it as the worst value. */
407 static uint32_t bgp_med_value(struct attr
*attr
, struct bgp
*bgp
)
409 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
))
412 if (bgp_flag_check(bgp
, BGP_FLAG_MED_MISSING_AS_WORST
))
419 void bgp_path_info_path_with_addpath_rx_str(struct bgp_path_info
*pi
, char *buf
)
421 if (pi
->addpath_rx_id
)
422 sprintf(buf
, "path %s (addpath rxid %d)", pi
->peer
->host
,
425 sprintf(buf
, "path %s", pi
->peer
->host
);
428 /* Compare two bgp route entity. If 'new' is preferable over 'exist' return 1.
430 static int bgp_path_info_cmp(struct bgp
*bgp
, struct bgp_path_info
*new,
431 struct bgp_path_info
*exist
, int *paths_eq
,
432 struct bgp_maxpaths_cfg
*mpath_cfg
, int debug
,
433 char *pfx_buf
, afi_t afi
, safi_t safi
)
435 struct attr
*newattr
, *existattr
;
436 bgp_peer_sort_t new_sort
;
437 bgp_peer_sort_t exist_sort
;
443 uint32_t exist_weight
;
444 uint32_t newm
, existm
;
445 struct in_addr new_id
;
446 struct in_addr exist_id
;
449 int internal_as_route
;
452 char new_buf
[PATH_ADDPATH_STR_BUFFER
];
453 char exist_buf
[PATH_ADDPATH_STR_BUFFER
];
455 uint32_t exist_mm_seq
;
462 zlog_debug("%s: new is NULL", pfx_buf
);
467 bgp_path_info_path_with_addpath_rx_str(new, new_buf
);
471 zlog_debug("%s: %s is the initial bestpath", pfx_buf
,
477 bgp_path_info_path_with_addpath_rx_str(exist
, exist_buf
);
478 zlog_debug("%s: Comparing %s flags 0x%x with %s flags 0x%x",
479 pfx_buf
, new_buf
, new->flags
, exist_buf
,
484 existattr
= exist
->attr
;
486 /* For EVPN routes, we cannot just go by local vs remote, we have to
487 * look at the MAC mobility sequence number, if present.
489 if (safi
== SAFI_EVPN
) {
490 /* This is an error condition described in RFC 7432 Section
492 * states that in this scenario "the PE MUST alert the operator"
494 * does not state what other action to take. In order to provide
496 * consistency in this scenario we are going to prefer the path
500 if (newattr
->sticky
!= existattr
->sticky
) {
502 prefix2str(&new->net
->p
, pfx_buf
,
504 * PREFIX2STR_BUFFER
);
505 bgp_path_info_path_with_addpath_rx_str(new,
507 bgp_path_info_path_with_addpath_rx_str(
511 if (newattr
->sticky
&& !existattr
->sticky
) {
514 "%s: %s wins over %s due to sticky MAC flag",
515 pfx_buf
, new_buf
, exist_buf
);
519 if (!newattr
->sticky
&& existattr
->sticky
) {
522 "%s: %s loses to %s due to sticky MAC flag",
523 pfx_buf
, new_buf
, exist_buf
);
528 new_mm_seq
= mac_mobility_seqnum(newattr
);
529 exist_mm_seq
= mac_mobility_seqnum(existattr
);
531 if (new_mm_seq
> exist_mm_seq
) {
534 "%s: %s wins over %s due to MM seq %u > %u",
535 pfx_buf
, new_buf
, exist_buf
, new_mm_seq
,
540 if (new_mm_seq
< exist_mm_seq
) {
543 "%s: %s loses to %s due to MM seq %u < %u",
544 pfx_buf
, new_buf
, exist_buf
, new_mm_seq
,
550 /* 1. Weight check. */
551 new_weight
= newattr
->weight
;
552 exist_weight
= existattr
->weight
;
554 if (new_weight
> exist_weight
) {
556 zlog_debug("%s: %s wins over %s due to weight %d > %d",
557 pfx_buf
, new_buf
, exist_buf
, new_weight
,
562 if (new_weight
< exist_weight
) {
564 zlog_debug("%s: %s loses to %s due to weight %d < %d",
565 pfx_buf
, new_buf
, exist_buf
, new_weight
,
570 /* 2. Local preference check. */
571 new_pref
= exist_pref
= bgp
->default_local_pref
;
573 if (newattr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
))
574 new_pref
= newattr
->local_pref
;
575 if (existattr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
))
576 exist_pref
= existattr
->local_pref
;
578 if (new_pref
> exist_pref
) {
581 "%s: %s wins over %s due to localpref %d > %d",
582 pfx_buf
, new_buf
, exist_buf
, new_pref
,
587 if (new_pref
< exist_pref
) {
590 "%s: %s loses to %s due to localpref %d < %d",
591 pfx_buf
, new_buf
, exist_buf
, new_pref
,
596 /* 3. Local route check. We prefer:
598 * - BGP_ROUTE_AGGREGATE
599 * - BGP_ROUTE_REDISTRIBUTE
601 if (!(new->sub_type
== BGP_ROUTE_NORMAL
||
602 new->sub_type
== BGP_ROUTE_IMPORTED
)) {
605 "%s: %s wins over %s due to preferred BGP_ROUTE type",
606 pfx_buf
, new_buf
, exist_buf
);
610 if (!(exist
->sub_type
== BGP_ROUTE_NORMAL
||
611 exist
->sub_type
== BGP_ROUTE_IMPORTED
)) {
614 "%s: %s loses to %s due to preferred BGP_ROUTE type",
615 pfx_buf
, new_buf
, exist_buf
);
619 /* 4. AS path length check. */
620 if (!bgp_flag_check(bgp
, BGP_FLAG_ASPATH_IGNORE
)) {
621 int exist_hops
= aspath_count_hops(existattr
->aspath
);
622 int exist_confeds
= aspath_count_confeds(existattr
->aspath
);
624 if (bgp_flag_check(bgp
, BGP_FLAG_ASPATH_CONFED
)) {
627 aspath_hops
= aspath_count_hops(newattr
->aspath
);
628 aspath_hops
+= aspath_count_confeds(newattr
->aspath
);
630 if (aspath_hops
< (exist_hops
+ exist_confeds
)) {
633 "%s: %s wins over %s due to aspath (with confeds) hopcount %d < %d",
634 pfx_buf
, new_buf
, exist_buf
,
636 (exist_hops
+ exist_confeds
));
640 if (aspath_hops
> (exist_hops
+ exist_confeds
)) {
643 "%s: %s loses to %s due to aspath (with confeds) hopcount %d > %d",
644 pfx_buf
, new_buf
, exist_buf
,
646 (exist_hops
+ exist_confeds
));
650 int newhops
= aspath_count_hops(newattr
->aspath
);
652 if (newhops
< exist_hops
) {
655 "%s: %s wins over %s due to aspath hopcount %d < %d",
656 pfx_buf
, new_buf
, exist_buf
,
657 newhops
, exist_hops
);
661 if (newhops
> exist_hops
) {
664 "%s: %s loses to %s due to aspath hopcount %d > %d",
665 pfx_buf
, new_buf
, exist_buf
,
666 newhops
, exist_hops
);
672 /* 5. Origin check. */
673 if (newattr
->origin
< existattr
->origin
) {
675 zlog_debug("%s: %s wins over %s due to ORIGIN %s < %s",
676 pfx_buf
, new_buf
, exist_buf
,
677 bgp_origin_long_str
[newattr
->origin
],
678 bgp_origin_long_str
[existattr
->origin
]);
682 if (newattr
->origin
> existattr
->origin
) {
684 zlog_debug("%s: %s loses to %s due to ORIGIN %s > %s",
685 pfx_buf
, new_buf
, exist_buf
,
686 bgp_origin_long_str
[newattr
->origin
],
687 bgp_origin_long_str
[existattr
->origin
]);
692 internal_as_route
= (aspath_count_hops(newattr
->aspath
) == 0
693 && aspath_count_hops(existattr
->aspath
) == 0);
694 confed_as_route
= (aspath_count_confeds(newattr
->aspath
) > 0
695 && aspath_count_confeds(existattr
->aspath
) > 0
696 && aspath_count_hops(newattr
->aspath
) == 0
697 && aspath_count_hops(existattr
->aspath
) == 0);
699 if (bgp_flag_check(bgp
, BGP_FLAG_ALWAYS_COMPARE_MED
)
700 || (bgp_flag_check(bgp
, BGP_FLAG_MED_CONFED
) && confed_as_route
)
701 || aspath_cmp_left(newattr
->aspath
, existattr
->aspath
)
702 || aspath_cmp_left_confed(newattr
->aspath
, existattr
->aspath
)
703 || internal_as_route
) {
704 new_med
= bgp_med_value(new->attr
, bgp
);
705 exist_med
= bgp_med_value(exist
->attr
, bgp
);
707 if (new_med
< exist_med
) {
710 "%s: %s wins over %s due to MED %d < %d",
711 pfx_buf
, new_buf
, exist_buf
, new_med
,
716 if (new_med
> exist_med
) {
719 "%s: %s loses to %s due to MED %d > %d",
720 pfx_buf
, new_buf
, exist_buf
, new_med
,
726 /* 7. Peer type check. */
727 new_sort
= new->peer
->sort
;
728 exist_sort
= exist
->peer
->sort
;
730 if (new_sort
== BGP_PEER_EBGP
731 && (exist_sort
== BGP_PEER_IBGP
|| exist_sort
== BGP_PEER_CONFED
)) {
734 "%s: %s wins over %s due to eBGP peer > iBGP peer",
735 pfx_buf
, new_buf
, exist_buf
);
739 if (exist_sort
== BGP_PEER_EBGP
740 && (new_sort
== BGP_PEER_IBGP
|| new_sort
== BGP_PEER_CONFED
)) {
743 "%s: %s loses to %s due to iBGP peer < eBGP peer",
744 pfx_buf
, new_buf
, exist_buf
);
748 /* 8. IGP metric check. */
752 newm
= new->extra
->igpmetric
;
754 existm
= exist
->extra
->igpmetric
;
759 "%s: %s wins over %s due to IGP metric %d < %d",
760 pfx_buf
, new_buf
, exist_buf
, newm
, existm
);
767 "%s: %s loses to %s due to IGP metric %d > %d",
768 pfx_buf
, new_buf
, exist_buf
, newm
, existm
);
772 /* 9. Same IGP metric. Compare the cluster list length as
773 representative of IGP hops metric. Rewrite the metric value
774 pair (newm, existm) with the cluster list length. Prefer the
775 path with smaller cluster list length. */
776 if (newm
== existm
) {
777 if (peer_sort(new->peer
) == BGP_PEER_IBGP
778 && peer_sort(exist
->peer
) == BGP_PEER_IBGP
779 && (mpath_cfg
== NULL
781 mpath_cfg
->ibgp_flags
,
782 BGP_FLAG_IBGP_MULTIPATH_SAME_CLUSTERLEN
))) {
783 newm
= BGP_CLUSTER_LIST_LENGTH(new->attr
);
784 existm
= BGP_CLUSTER_LIST_LENGTH(exist
->attr
);
789 "%s: %s wins over %s due to CLUSTER_LIST length %d < %d",
790 pfx_buf
, new_buf
, exist_buf
,
798 "%s: %s loses to %s due to CLUSTER_LIST length %d > %d",
799 pfx_buf
, new_buf
, exist_buf
,
806 /* 10. confed-external vs. confed-internal */
807 if (CHECK_FLAG(bgp
->config
, BGP_CONFIG_CONFEDERATION
)) {
808 if (new_sort
== BGP_PEER_CONFED
809 && exist_sort
== BGP_PEER_IBGP
) {
812 "%s: %s wins over %s due to confed-external peer > confed-internal peer",
813 pfx_buf
, new_buf
, exist_buf
);
817 if (exist_sort
== BGP_PEER_CONFED
818 && new_sort
== BGP_PEER_IBGP
) {
821 "%s: %s loses to %s due to confed-internal peer < confed-external peer",
822 pfx_buf
, new_buf
, exist_buf
);
827 /* 11. Maximum path check. */
828 if (newm
== existm
) {
829 /* If one path has a label but the other does not, do not treat
830 * them as equals for multipath
832 if ((new->extra
&&bgp_is_valid_label(&new->extra
->label
[0]))
834 && bgp_is_valid_label(&exist
->extra
->label
[0]))) {
837 "%s: %s and %s cannot be multipath, one has a label while the other does not",
838 pfx_buf
, new_buf
, exist_buf
);
839 } else if (bgp_flag_check(bgp
,
840 BGP_FLAG_ASPATH_MULTIPATH_RELAX
)) {
843 * For the two paths, all comparison steps till IGP
845 * have succeeded - including AS_PATH hop count. Since
847 * bestpath as-path multipath-relax' knob is on, we
849 * an exact match of AS_PATH. Thus, mark the paths are
851 * That will trigger both these paths to get into the
859 "%s: %s and %s are equal via multipath-relax",
860 pfx_buf
, new_buf
, exist_buf
);
861 } else if (new->peer
->sort
== BGP_PEER_IBGP
) {
862 if (aspath_cmp(new->attr
->aspath
,
863 exist
->attr
->aspath
)) {
868 "%s: %s and %s are equal via matching aspaths",
869 pfx_buf
, new_buf
, exist_buf
);
871 } else if (new->peer
->as
== exist
->peer
->as
) {
876 "%s: %s and %s are equal via same remote-as",
877 pfx_buf
, new_buf
, exist_buf
);
881 * TODO: If unequal cost ibgp multipath is enabled we can
882 * mark the paths as equal here instead of returning
887 "%s: %s wins over %s after IGP metric comparison",
888 pfx_buf
, new_buf
, exist_buf
);
891 "%s: %s loses to %s after IGP metric comparison",
892 pfx_buf
, new_buf
, exist_buf
);
897 /* 12. If both paths are external, prefer the path that was received
898 first (the oldest one). This step minimizes route-flap, since a
899 newer path won't displace an older one, even if it was the
900 preferred route based on the additional decision criteria below. */
901 if (!bgp_flag_check(bgp
, BGP_FLAG_COMPARE_ROUTER_ID
)
902 && new_sort
== BGP_PEER_EBGP
&& exist_sort
== BGP_PEER_EBGP
) {
903 if (CHECK_FLAG(new->flags
, BGP_PATH_SELECTED
)) {
906 "%s: %s wins over %s due to oldest external",
907 pfx_buf
, new_buf
, exist_buf
);
911 if (CHECK_FLAG(exist
->flags
, BGP_PATH_SELECTED
)) {
914 "%s: %s loses to %s due to oldest external",
915 pfx_buf
, new_buf
, exist_buf
);
920 /* 13. Router-ID comparision. */
921 /* If one of the paths is "stale", the corresponding peer router-id will
922 * be 0 and would always win over the other path. If originator id is
923 * used for the comparision, it will decide which path is better.
925 if (newattr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID
))
926 new_id
.s_addr
= newattr
->originator_id
.s_addr
;
928 new_id
.s_addr
= new->peer
->remote_id
.s_addr
;
929 if (existattr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID
))
930 exist_id
.s_addr
= existattr
->originator_id
.s_addr
;
932 exist_id
.s_addr
= exist
->peer
->remote_id
.s_addr
;
934 if (ntohl(new_id
.s_addr
) < ntohl(exist_id
.s_addr
)) {
937 "%s: %s wins over %s due to Router-ID comparison",
938 pfx_buf
, new_buf
, exist_buf
);
942 if (ntohl(new_id
.s_addr
) > ntohl(exist_id
.s_addr
)) {
945 "%s: %s loses to %s due to Router-ID comparison",
946 pfx_buf
, new_buf
, exist_buf
);
950 /* 14. Cluster length comparision. */
951 new_cluster
= BGP_CLUSTER_LIST_LENGTH(new->attr
);
952 exist_cluster
= BGP_CLUSTER_LIST_LENGTH(exist
->attr
);
954 if (new_cluster
< exist_cluster
) {
957 "%s: %s wins over %s due to CLUSTER_LIST length %d < %d",
958 pfx_buf
, new_buf
, exist_buf
, new_cluster
,
963 if (new_cluster
> exist_cluster
) {
966 "%s: %s loses to %s due to CLUSTER_LIST length %d > %d",
967 pfx_buf
, new_buf
, exist_buf
, new_cluster
,
972 /* 15. Neighbor address comparision. */
973 /* Do this only if neither path is "stale" as stale paths do not have
974 * valid peer information (as the connection may or may not be up).
976 if (CHECK_FLAG(exist
->flags
, BGP_PATH_STALE
)) {
979 "%s: %s wins over %s due to latter path being STALE",
980 pfx_buf
, new_buf
, exist_buf
);
984 if (CHECK_FLAG(new->flags
, BGP_PATH_STALE
)) {
987 "%s: %s loses to %s due to former path being STALE",
988 pfx_buf
, new_buf
, exist_buf
);
992 /* locally configured routes to advertise do not have su_remote */
993 if (new->peer
->su_remote
== NULL
)
995 if (exist
->peer
->su_remote
== NULL
)
998 ret
= sockunion_cmp(new->peer
->su_remote
, exist
->peer
->su_remote
);
1003 "%s: %s loses to %s due to Neighor IP comparison",
1004 pfx_buf
, new_buf
, exist_buf
);
1011 "%s: %s wins over %s due to Neighor IP comparison",
1012 pfx_buf
, new_buf
, exist_buf
);
1017 zlog_debug("%s: %s wins over %s due to nothing left to compare",
1018 pfx_buf
, new_buf
, exist_buf
);
1023 /* Compare two bgp route entity. Return -1 if new is preferred, 1 if exist
1024 * is preferred, or 0 if they are the same (usually will only occur if
1025 * multipath is enabled
1026 * This version is compatible with */
1027 int bgp_path_info_cmp_compatible(struct bgp
*bgp
, struct bgp_path_info
*new,
1028 struct bgp_path_info
*exist
, char *pfx_buf
,
1029 afi_t afi
, safi_t safi
)
1033 ret
= bgp_path_info_cmp(bgp
, new, exist
, &paths_eq
, NULL
, 0, pfx_buf
,
1047 static enum filter_type
bgp_input_filter(struct peer
*peer
, struct prefix
*p
,
1048 struct attr
*attr
, afi_t afi
,
1051 struct bgp_filter
*filter
;
1053 filter
= &peer
->filter
[afi
][safi
];
1055 #define FILTER_EXIST_WARN(F, f, filter) \
1056 if (BGP_DEBUG(update, UPDATE_IN) && !(F##_IN(filter))) \
1057 zlog_debug("%s: Could not find configured input %s-list %s!", \
1058 peer->host, #f, F##_IN_NAME(filter));
1060 if (DISTRIBUTE_IN_NAME(filter
)) {
1061 FILTER_EXIST_WARN(DISTRIBUTE
, distribute
, filter
);
1063 if (access_list_apply(DISTRIBUTE_IN(filter
), p
) == FILTER_DENY
)
1067 if (PREFIX_LIST_IN_NAME(filter
)) {
1068 FILTER_EXIST_WARN(PREFIX_LIST
, prefix
, filter
);
1070 if (prefix_list_apply(PREFIX_LIST_IN(filter
), p
) == PREFIX_DENY
)
1074 if (FILTER_LIST_IN_NAME(filter
)) {
1075 FILTER_EXIST_WARN(FILTER_LIST
, as
, filter
);
1077 if (as_list_apply(FILTER_LIST_IN(filter
), attr
->aspath
)
1082 return FILTER_PERMIT
;
1083 #undef FILTER_EXIST_WARN
1086 static enum filter_type
bgp_output_filter(struct peer
*peer
, struct prefix
*p
,
1087 struct attr
*attr
, afi_t afi
,
1090 struct bgp_filter
*filter
;
1092 filter
= &peer
->filter
[afi
][safi
];
1094 #define FILTER_EXIST_WARN(F, f, filter) \
1095 if (BGP_DEBUG(update, UPDATE_OUT) && !(F##_OUT(filter))) \
1096 zlog_debug("%s: Could not find configured output %s-list %s!", \
1097 peer->host, #f, F##_OUT_NAME(filter));
1099 if (DISTRIBUTE_OUT_NAME(filter
)) {
1100 FILTER_EXIST_WARN(DISTRIBUTE
, distribute
, filter
);
1102 if (access_list_apply(DISTRIBUTE_OUT(filter
), p
) == FILTER_DENY
)
1106 if (PREFIX_LIST_OUT_NAME(filter
)) {
1107 FILTER_EXIST_WARN(PREFIX_LIST
, prefix
, filter
);
1109 if (prefix_list_apply(PREFIX_LIST_OUT(filter
), p
)
1114 if (FILTER_LIST_OUT_NAME(filter
)) {
1115 FILTER_EXIST_WARN(FILTER_LIST
, as
, filter
);
1117 if (as_list_apply(FILTER_LIST_OUT(filter
), attr
->aspath
)
1122 return FILTER_PERMIT
;
1123 #undef FILTER_EXIST_WARN
1126 /* If community attribute includes no_export then return 1. */
1127 static int bgp_community_filter(struct peer
*peer
, struct attr
*attr
)
1129 if (attr
->community
) {
1130 /* NO_ADVERTISE check. */
1131 if (community_include(attr
->community
, COMMUNITY_NO_ADVERTISE
))
1134 /* NO_EXPORT check. */
1135 if (peer
->sort
== BGP_PEER_EBGP
1136 && community_include(attr
->community
, COMMUNITY_NO_EXPORT
))
1139 /* NO_EXPORT_SUBCONFED check. */
1140 if (peer
->sort
== BGP_PEER_EBGP
1141 || peer
->sort
== BGP_PEER_CONFED
)
1142 if (community_include(attr
->community
,
1143 COMMUNITY_NO_EXPORT_SUBCONFED
))
1149 /* Route reflection loop check. */
1150 static int bgp_cluster_filter(struct peer
*peer
, struct attr
*attr
)
1152 struct in_addr cluster_id
;
1154 if (attr
->cluster
) {
1155 if (peer
->bgp
->config
& BGP_CONFIG_CLUSTER_ID
)
1156 cluster_id
= peer
->bgp
->cluster_id
;
1158 cluster_id
= peer
->bgp
->router_id
;
1160 if (cluster_loop_check(attr
->cluster
, cluster_id
))
1166 static int bgp_input_modifier(struct peer
*peer
, struct prefix
*p
,
1167 struct attr
*attr
, afi_t afi
, safi_t safi
,
1168 const char *rmap_name
)
1170 struct bgp_filter
*filter
;
1171 struct bgp_path_info rmap_path
;
1172 route_map_result_t ret
;
1173 struct route_map
*rmap
= NULL
;
1175 filter
= &peer
->filter
[afi
][safi
];
1177 /* Apply default weight value. */
1178 if (peer
->weight
[afi
][safi
])
1179 attr
->weight
= peer
->weight
[afi
][safi
];
1182 rmap
= route_map_lookup_by_name(rmap_name
);
1187 if (ROUTE_MAP_IN_NAME(filter
)) {
1188 rmap
= ROUTE_MAP_IN(filter
);
1195 /* Route map apply. */
1197 memset(&rmap_path
, 0, sizeof(struct bgp_path_info
));
1198 /* Duplicate current value to new strucutre for modification. */
1199 rmap_path
.peer
= peer
;
1200 rmap_path
.attr
= attr
;
1202 SET_FLAG(peer
->rmap_type
, PEER_RMAP_TYPE_IN
);
1204 /* Apply BGP route map to the attribute. */
1205 ret
= route_map_apply(rmap
, p
, RMAP_BGP
, &rmap_path
);
1207 peer
->rmap_type
= 0;
1209 if (ret
== RMAP_DENYMATCH
)
1215 static int bgp_output_modifier(struct peer
*peer
, struct prefix
*p
,
1216 struct attr
*attr
, afi_t afi
, safi_t safi
,
1217 const char *rmap_name
)
1219 struct bgp_path_info rmap_path
;
1220 route_map_result_t ret
;
1221 struct route_map
*rmap
= NULL
;
1225 * So if we get to this point and have no rmap_name
1226 * we want to just show the output as it currently
1232 /* Apply default weight value. */
1233 if (peer
->weight
[afi
][safi
])
1234 attr
->weight
= peer
->weight
[afi
][safi
];
1236 rmap
= route_map_lookup_by_name(rmap_name
);
1239 * If we have a route map name and we do not find
1240 * the routemap that means we have an implicit
1246 memset(&rmap_path
, 0, sizeof(struct bgp_path_info
));
1247 /* Route map apply. */
1248 /* Duplicate current value to new strucutre for modification. */
1249 rmap_path
.peer
= peer
;
1250 rmap_path
.attr
= attr
;
1252 rmap_type
= peer
->rmap_type
;
1253 SET_FLAG(peer
->rmap_type
, PEER_RMAP_TYPE_OUT
);
1255 /* Apply BGP route map to the attribute. */
1256 ret
= route_map_apply(rmap
, p
, RMAP_BGP
, &rmap_path
);
1258 peer
->rmap_type
= rmap_type
;
1260 if (ret
== RMAP_DENYMATCH
)
1262 * caller has multiple error paths with bgp_attr_flush()
1269 /* If this is an EBGP peer with remove-private-AS */
1270 static void bgp_peer_remove_private_as(struct bgp
*bgp
, afi_t afi
, safi_t safi
,
1271 struct peer
*peer
, struct attr
*attr
)
1273 if (peer
->sort
== BGP_PEER_EBGP
1274 && (peer_af_flag_check(peer
, afi
, safi
,
1275 PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE
)
1276 || peer_af_flag_check(peer
, afi
, safi
,
1277 PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE
)
1278 || peer_af_flag_check(peer
, afi
, safi
,
1279 PEER_FLAG_REMOVE_PRIVATE_AS_ALL
)
1280 || peer_af_flag_check(peer
, afi
, safi
,
1281 PEER_FLAG_REMOVE_PRIVATE_AS
))) {
1282 // Take action on the entire aspath
1283 if (peer_af_flag_check(peer
, afi
, safi
,
1284 PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE
)
1285 || peer_af_flag_check(peer
, afi
, safi
,
1286 PEER_FLAG_REMOVE_PRIVATE_AS_ALL
)) {
1287 if (peer_af_flag_check(
1289 PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE
))
1290 attr
->aspath
= aspath_replace_private_asns(
1291 attr
->aspath
, bgp
->as
);
1293 // The entire aspath consists of private ASNs so create
1295 else if (aspath_private_as_check(attr
->aspath
))
1296 attr
->aspath
= aspath_empty_get();
1298 // There are some public and some private ASNs, remove
1301 attr
->aspath
= aspath_remove_private_asns(
1305 // 'all' was not specified so the entire aspath must be private
1307 // for us to do anything
1308 else if (aspath_private_as_check(attr
->aspath
)) {
1309 if (peer_af_flag_check(
1311 PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE
))
1312 attr
->aspath
= aspath_replace_private_asns(
1313 attr
->aspath
, bgp
->as
);
1315 attr
->aspath
= aspath_empty_get();
1320 /* If this is an EBGP peer with as-override */
1321 static void bgp_peer_as_override(struct bgp
*bgp
, afi_t afi
, safi_t safi
,
1322 struct peer
*peer
, struct attr
*attr
)
1324 if (peer
->sort
== BGP_PEER_EBGP
1325 && peer_af_flag_check(peer
, afi
, safi
, PEER_FLAG_AS_OVERRIDE
)) {
1326 if (aspath_single_asn_check(attr
->aspath
, peer
->as
))
1327 attr
->aspath
= aspath_replace_specific_asn(
1328 attr
->aspath
, peer
->as
, bgp
->as
);
1332 void bgp_attr_add_gshut_community(struct attr
*attr
)
1334 struct community
*old
;
1335 struct community
*new;
1336 struct community
*merge
;
1337 struct community
*gshut
;
1339 old
= attr
->community
;
1340 gshut
= community_str2com("graceful-shutdown");
1345 merge
= community_merge(community_dup(old
), gshut
);
1347 if (old
->refcnt
== 0)
1348 community_free(old
);
1350 new = community_uniq_sort(merge
);
1351 community_free(merge
);
1353 new = community_dup(gshut
);
1356 community_free(gshut
);
1357 attr
->community
= new;
1358 attr
->flag
|= ATTR_FLAG_BIT(BGP_ATTR_COMMUNITIES
);
1360 /* When we add the graceful-shutdown community we must also
1361 * lower the local-preference */
1362 attr
->flag
|= ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
);
1363 attr
->local_pref
= BGP_GSHUT_LOCAL_PREF
;
1367 static void subgroup_announce_reset_nhop(uint8_t family
, struct attr
*attr
)
1369 if (family
== AF_INET
) {
1370 attr
->nexthop
.s_addr
= 0;
1371 attr
->mp_nexthop_global_in
.s_addr
= 0;
1373 if (family
== AF_INET6
)
1374 memset(&attr
->mp_nexthop_global
, 0, IPV6_MAX_BYTELEN
);
1375 if (family
== AF_EVPN
)
1376 memset(&attr
->mp_nexthop_global_in
, 0, BGP_ATTR_NHLEN_IPV4
);
1379 int subgroup_announce_check(struct bgp_node
*rn
, struct bgp_path_info
*pi
,
1380 struct update_subgroup
*subgrp
, struct prefix
*p
,
1383 struct bgp_filter
*filter
;
1386 struct peer
*onlypeer
;
1388 struct attr
*piattr
;
1389 char buf
[PREFIX_STRLEN
];
1395 int samepeer_safe
= 0; /* for synthetic mplsvpns routes */
1397 if (DISABLE_BGP_ANNOUNCE
)
1400 afi
= SUBGRP_AFI(subgrp
);
1401 safi
= SUBGRP_SAFI(subgrp
);
1402 peer
= SUBGRP_PEER(subgrp
);
1404 if (CHECK_FLAG(peer
->flags
, PEER_FLAG_LONESOUL
))
1405 onlypeer
= SUBGRP_PFIRST(subgrp
)->peer
;
1408 filter
= &peer
->filter
[afi
][safi
];
1409 bgp
= SUBGRP_INST(subgrp
);
1410 piattr
= bgp_path_info_mpath_count(pi
) ? bgp_path_info_mpath_attr(pi
)
1414 if (((afi
== AFI_IP
) || (afi
== AFI_IP6
)) && (safi
== SAFI_MPLS_VPN
)
1415 && ((pi
->type
== ZEBRA_ROUTE_BGP_DIRECT
)
1416 || (pi
->type
== ZEBRA_ROUTE_BGP_DIRECT_EXT
))) {
1419 * direct and direct_ext type routes originate internally even
1420 * though they can have peer pointers that reference other
1423 prefix2str(p
, buf
, PREFIX_STRLEN
);
1424 zlog_debug("%s: pfx %s bgp_direct->vpn route peer safe",
1430 if (((afi
== AFI_IP
) || (afi
== AFI_IP6
))
1431 && ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_UNICAST
))
1432 && (pi
->type
== ZEBRA_ROUTE_BGP
)
1433 && (pi
->sub_type
== BGP_ROUTE_IMPORTED
)) {
1435 /* Applies to routes leaked vpn->vrf and vrf->vpn */
1440 /* With addpath we may be asked to TX all kinds of paths so make sure
1442 if (!CHECK_FLAG(pi
->flags
, BGP_PATH_VALID
)
1443 || CHECK_FLAG(pi
->flags
, BGP_PATH_HISTORY
)
1444 || CHECK_FLAG(pi
->flags
, BGP_PATH_REMOVED
)) {
1448 /* If this is not the bestpath then check to see if there is an enabled
1450 * feature that requires us to advertise it */
1451 if (!CHECK_FLAG(pi
->flags
, BGP_PATH_SELECTED
)) {
1452 if (!bgp_addpath_tx_path(peer
, afi
, safi
, pi
)) {
1457 /* Aggregate-address suppress check. */
1458 if (pi
->extra
&& pi
->extra
->suppress
)
1459 if (!UNSUPPRESS_MAP_NAME(filter
)) {
1464 * If we are doing VRF 2 VRF leaking via the import
1465 * statement, we want to prevent the route going
1466 * off box as that the RT and RD created are localy
1467 * significant and globaly useless.
1469 if (safi
== SAFI_MPLS_VPN
&& pi
->extra
&& pi
->extra
->num_labels
1470 && pi
->extra
->label
[0] == BGP_PREVENT_VRF_2_VRF_LEAK
)
1473 /* If it's labeled safi, make sure the route has a valid label. */
1474 if (safi
== SAFI_LABELED_UNICAST
) {
1475 mpls_label_t label
= bgp_adv_label(rn
, pi
, peer
, afi
, safi
);
1476 if (!bgp_is_valid_label(&label
)) {
1477 if (bgp_debug_update(NULL
, p
, subgrp
->update_group
, 0))
1478 zlog_debug("u%" PRIu64
":s%" PRIu64
1479 " %s/%d is filtered - no label (%p)",
1480 subgrp
->update_group
->id
, subgrp
->id
,
1481 inet_ntop(p
->family
, &p
->u
.prefix
,
1482 buf
, SU_ADDRSTRLEN
),
1483 p
->prefixlen
, &label
);
1488 /* Do not send back route to sender. */
1489 if (onlypeer
&& from
== onlypeer
) {
1493 /* Do not send the default route in the BGP table if the neighbor is
1494 * configured for default-originate */
1495 if (CHECK_FLAG(peer
->af_flags
[afi
][safi
],
1496 PEER_FLAG_DEFAULT_ORIGINATE
)) {
1497 if (p
->family
== AF_INET
&& p
->u
.prefix4
.s_addr
== INADDR_ANY
)
1499 else if (p
->family
== AF_INET6
&& p
->prefixlen
== 0)
1503 /* Transparency check. */
1504 if (CHECK_FLAG(peer
->af_flags
[afi
][safi
], PEER_FLAG_RSERVER_CLIENT
)
1505 && CHECK_FLAG(from
->af_flags
[afi
][safi
], PEER_FLAG_RSERVER_CLIENT
))
1510 /* If community is not disabled check the no-export and local. */
1511 if (!transparent
&& bgp_community_filter(peer
, piattr
)) {
1512 if (bgp_debug_update(NULL
, p
, subgrp
->update_group
, 0))
1514 "subgrpannouncecheck: community filter check fail");
1518 /* If the attribute has originator-id and it is same as remote
1520 if (onlypeer
&& piattr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID
)
1521 && (IPV4_ADDR_SAME(&onlypeer
->remote_id
, &piattr
->originator_id
))) {
1522 if (bgp_debug_update(NULL
, p
, subgrp
->update_group
, 0))
1524 "%s [Update:SEND] %s originator-id is same as "
1527 prefix2str(p
, buf
, sizeof(buf
)));
1531 /* ORF prefix-list filter check */
1532 if (CHECK_FLAG(peer
->af_cap
[afi
][safi
], PEER_CAP_ORF_PREFIX_RM_ADV
)
1533 && (CHECK_FLAG(peer
->af_cap
[afi
][safi
], PEER_CAP_ORF_PREFIX_SM_RCV
)
1534 || CHECK_FLAG(peer
->af_cap
[afi
][safi
],
1535 PEER_CAP_ORF_PREFIX_SM_OLD_RCV
)))
1536 if (peer
->orf_plist
[afi
][safi
]) {
1537 if (prefix_list_apply(peer
->orf_plist
[afi
][safi
], p
)
1539 if (bgp_debug_update(NULL
, p
,
1540 subgrp
->update_group
, 0))
1542 "%s [Update:SEND] %s is filtered via ORF",
1550 /* Output filter check. */
1551 if (bgp_output_filter(peer
, p
, piattr
, afi
, safi
) == FILTER_DENY
) {
1552 if (bgp_debug_update(NULL
, p
, subgrp
->update_group
, 0))
1553 zlog_debug("%s [Update:SEND] %s is filtered",
1554 peer
->host
, prefix2str(p
, buf
, sizeof(buf
)));
1558 #ifdef BGP_SEND_ASPATH_CHECK
1559 /* AS path loop check. */
1560 if (onlypeer
&& aspath_loop_check(piattr
->aspath
, onlypeer
->as
)) {
1561 if (bgp_debug_update(NULL
, p
, subgrp
->update_group
, 0))
1563 "%s [Update:SEND] suppress announcement to peer AS %u "
1564 "that is part of AS path.",
1565 onlypeer
->host
, onlypeer
->as
);
1568 #endif /* BGP_SEND_ASPATH_CHECK */
1570 /* If we're a CONFED we need to loop check the CONFED ID too */
1571 if (CHECK_FLAG(bgp
->config
, BGP_CONFIG_CONFEDERATION
)) {
1572 if (aspath_loop_check(piattr
->aspath
, bgp
->confed_id
)) {
1573 if (bgp_debug_update(NULL
, p
, subgrp
->update_group
, 0))
1575 "%s [Update:SEND] suppress announcement to peer AS %u"
1577 peer
->host
, bgp
->confed_id
);
1582 /* Route-Reflect check. */
1583 if (from
->sort
== BGP_PEER_IBGP
&& peer
->sort
== BGP_PEER_IBGP
)
1588 /* IBGP reflection check. */
1589 if (reflect
&& !samepeer_safe
) {
1590 /* A route from a Client peer. */
1591 if (CHECK_FLAG(from
->af_flags
[afi
][safi
],
1592 PEER_FLAG_REFLECTOR_CLIENT
)) {
1593 /* Reflect to all the Non-Client peers and also to the
1594 Client peers other than the originator. Originator
1596 is already done. So there is noting to do. */
1597 /* no bgp client-to-client reflection check. */
1598 if (bgp_flag_check(bgp
, BGP_FLAG_NO_CLIENT_TO_CLIENT
))
1599 if (CHECK_FLAG(peer
->af_flags
[afi
][safi
],
1600 PEER_FLAG_REFLECTOR_CLIENT
))
1603 /* A route from a Non-client peer. Reflect to all other
1605 if (!CHECK_FLAG(peer
->af_flags
[afi
][safi
],
1606 PEER_FLAG_REFLECTOR_CLIENT
))
1611 /* For modify attribute, copy it to temporary structure. */
1612 bgp_attr_dup(attr
, piattr
);
1614 /* If local-preference is not set. */
1615 if ((peer
->sort
== BGP_PEER_IBGP
|| peer
->sort
== BGP_PEER_CONFED
)
1616 && (!(attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
)))) {
1617 attr
->flag
|= ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
);
1618 attr
->local_pref
= bgp
->default_local_pref
;
1621 /* If originator-id is not set and the route is to be reflected,
1622 set the originator id */
1624 && (!(attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID
)))) {
1625 IPV4_ADDR_COPY(&(attr
->originator_id
), &(from
->remote_id
));
1626 SET_FLAG(attr
->flag
, BGP_ATTR_ORIGINATOR_ID
);
1629 /* Remove MED if its an EBGP peer - will get overwritten by route-maps
1631 if (peer
->sort
== BGP_PEER_EBGP
1632 && attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
)) {
1633 if (from
!= bgp
->peer_self
&& !transparent
1634 && !CHECK_FLAG(peer
->af_flags
[afi
][safi
],
1635 PEER_FLAG_MED_UNCHANGED
))
1637 ~(ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
));
1640 /* Since the nexthop attribute can vary per peer, it is not explicitly
1642 * in announce check, only certain flags and length (or number of
1644 * -- for IPv6/MP_REACH) are set here in order to guide the update
1646 * code in setting the nexthop(s) on a per peer basis in
1648 * Typically, the source nexthop in the attribute is preserved but in
1650 * scenarios where we know it will always be overwritten, we reset the
1651 * nexthop to "0" in an attempt to achieve better Update packing. An
1652 * example of this is when a prefix from each of 2 IBGP peers needs to
1654 * announced to an EBGP peer (and they have the same attributes barring
1658 SET_FLAG(attr
->rmap_change_flags
, BATTR_REFLECTED
);
1660 #define NEXTHOP_IS_V6 \
1661 ((safi != SAFI_ENCAP && safi != SAFI_MPLS_VPN \
1662 && (p->family == AF_INET6 || peer_cap_enhe(peer, afi, safi))) \
1663 || ((safi == SAFI_ENCAP || safi == SAFI_MPLS_VPN) \
1664 && attr->mp_nexthop_len >= IPV6_MAX_BYTELEN))
1666 /* IPv6/MP starts with 1 nexthop. The link-local address is passed only
1668 * the peer (group) is configured to receive link-local nexthop
1670 * and it is available in the prefix OR we're not reflecting the route
1672 * the peer (group) to whom we're going to announce is on a shared
1674 * and this is either a self-originated route or the peer is EBGP.
1676 if (NEXTHOP_IS_V6
) {
1677 attr
->mp_nexthop_len
= BGP_ATTR_NHLEN_IPV6_GLOBAL
;
1678 if ((CHECK_FLAG(peer
->af_flags
[afi
][safi
],
1679 PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED
)
1680 && IN6_IS_ADDR_LINKLOCAL(&attr
->mp_nexthop_local
))
1681 || (!reflect
&& peer
->shared_network
1682 && (from
== bgp
->peer_self
1683 || peer
->sort
== BGP_PEER_EBGP
))) {
1684 attr
->mp_nexthop_len
=
1685 BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL
;
1688 /* Clear off link-local nexthop in source, whenever it is not
1690 * ensure more prefixes share the same attribute for
1693 if (!(CHECK_FLAG(peer
->af_flags
[afi
][safi
],
1694 PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED
)))
1695 memset(&attr
->mp_nexthop_local
, 0, IPV6_MAX_BYTELEN
);
1698 bgp_peer_remove_private_as(bgp
, afi
, safi
, peer
, attr
);
1699 bgp_peer_as_override(bgp
, afi
, safi
, peer
, attr
);
1701 /* Route map & unsuppress-map apply. */
1702 if (ROUTE_MAP_OUT_NAME(filter
) || (pi
->extra
&& pi
->extra
->suppress
)) {
1703 struct bgp_path_info rmap_path
;
1704 struct bgp_path_info_extra dummy_rmap_path_extra
;
1705 struct attr dummy_attr
;
1707 memset(&rmap_path
, 0, sizeof(struct bgp_path_info
));
1708 rmap_path
.peer
= peer
;
1709 rmap_path
.attr
= attr
;
1712 memcpy(&dummy_rmap_path_extra
, pi
->extra
,
1713 sizeof(struct bgp_path_info_extra
));
1714 rmap_path
.extra
= &dummy_rmap_path_extra
;
1717 /* don't confuse inbound and outbound setting */
1718 RESET_FLAG(attr
->rmap_change_flags
);
1721 * The route reflector is not allowed to modify the attributes
1722 * of the reflected IBGP routes unless explicitly allowed.
1724 if ((from
->sort
== BGP_PEER_IBGP
&& peer
->sort
== BGP_PEER_IBGP
)
1725 && !bgp_flag_check(bgp
,
1726 BGP_FLAG_RR_ALLOW_OUTBOUND_POLICY
)) {
1727 bgp_attr_dup(&dummy_attr
, attr
);
1728 rmap_path
.attr
= &dummy_attr
;
1731 SET_FLAG(peer
->rmap_type
, PEER_RMAP_TYPE_OUT
);
1733 if (pi
->extra
&& pi
->extra
->suppress
)
1734 ret
= route_map_apply(UNSUPPRESS_MAP(filter
), p
,
1735 RMAP_BGP
, &rmap_path
);
1737 ret
= route_map_apply(ROUTE_MAP_OUT(filter
), p
,
1738 RMAP_BGP
, &rmap_path
);
1740 peer
->rmap_type
= 0;
1742 if (ret
== RMAP_DENYMATCH
) {
1743 bgp_attr_flush(attr
);
1748 if (bgp_flag_check(bgp
, BGP_FLAG_GRACEFUL_SHUTDOWN
)) {
1749 if (peer
->sort
== BGP_PEER_IBGP
1750 || peer
->sort
== BGP_PEER_CONFED
) {
1751 attr
->flag
|= ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
);
1752 attr
->local_pref
= BGP_GSHUT_LOCAL_PREF
;
1754 bgp_attr_add_gshut_community(attr
);
1758 /* After route-map has been applied, we check to see if the nexthop to
1759 * be carried in the attribute (that is used for the announcement) can
1760 * be cleared off or not. We do this in all cases where we would be
1761 * setting the nexthop to "ourselves". For IPv6, we only need to
1763 * the global nexthop here; the link-local nexthop would have been
1765 * already, and if not, it is required by the update formation code.
1766 * Also see earlier comments in this function.
1769 * If route-map has performed some operation on the nexthop or the peer
1770 * configuration says to pass it unchanged, we cannot reset the nexthop
1771 * here, so only attempt to do it if these aren't true. Note that the
1772 * route-map handler itself might have cleared the nexthop, if for
1774 * it is configured as 'peer-address'.
1776 if (!bgp_rmap_nhop_changed(attr
->rmap_change_flags
,
1777 piattr
->rmap_change_flags
)
1779 && !CHECK_FLAG(peer
->af_flags
[afi
][safi
],
1780 PEER_FLAG_NEXTHOP_UNCHANGED
)) {
1781 /* We can reset the nexthop, if setting (or forcing) it to
1783 if (CHECK_FLAG(peer
->af_flags
[afi
][safi
],
1784 PEER_FLAG_NEXTHOP_SELF
)
1785 || CHECK_FLAG(peer
->af_flags
[afi
][safi
],
1786 PEER_FLAG_FORCE_NEXTHOP_SELF
)) {
1788 || CHECK_FLAG(peer
->af_flags
[afi
][safi
],
1789 PEER_FLAG_FORCE_NEXTHOP_SELF
))
1790 subgroup_announce_reset_nhop(
1791 (peer_cap_enhe(peer
, afi
, safi
)
1795 } else if (peer
->sort
== BGP_PEER_EBGP
) {
1796 /* Can also reset the nexthop if announcing to EBGP, but
1798 * no peer in the subgroup is on a shared subnet.
1799 * Note: 3rd party nexthop currently implemented for
1802 if (!bgp_subgrp_multiaccess_check_v4(piattr
->nexthop
,
1804 subgroup_announce_reset_nhop(
1805 (peer_cap_enhe(peer
, afi
, safi
)
1809 } else if (CHECK_FLAG(pi
->flags
, BGP_PATH_ANNC_NH_SELF
)) {
1811 * This flag is used for leaked vpn-vrf routes
1813 int family
= p
->family
;
1815 if (peer_cap_enhe(peer
, afi
, safi
))
1818 if (bgp_debug_update(NULL
, p
, subgrp
->update_group
, 0))
1820 "%s: BGP_PATH_ANNC_NH_SELF, family=%s",
1821 __func__
, family2str(family
));
1822 subgroup_announce_reset_nhop(family
, attr
);
1825 /* If IPv6/MP and nexthop does not have any override and happens
1827 * be a link-local address, reset it so that we don't pass along
1829 * source's link-local IPv6 address to recipients who may not be
1831 * the same interface.
1833 if (p
->family
== AF_INET6
|| peer_cap_enhe(peer
, afi
, safi
)) {
1834 if (IN6_IS_ADDR_LINKLOCAL(&attr
->mp_nexthop_global
))
1835 subgroup_announce_reset_nhop(AF_INET6
, attr
);
1842 void bgp_best_selection(struct bgp
*bgp
, struct bgp_node
*rn
,
1843 struct bgp_maxpaths_cfg
*mpath_cfg
,
1844 struct bgp_path_info_pair
*result
, afi_t afi
,
1847 struct bgp_path_info
*new_select
;
1848 struct bgp_path_info
*old_select
;
1849 struct bgp_path_info
*pi
;
1850 struct bgp_path_info
*pi1
;
1851 struct bgp_path_info
*pi2
;
1852 struct bgp_path_info
*nextpi
= NULL
;
1853 int paths_eq
, do_mpath
, debug
;
1854 struct list mp_list
;
1855 char pfx_buf
[PREFIX2STR_BUFFER
];
1856 char path_buf
[PATH_ADDPATH_STR_BUFFER
];
1858 bgp_mp_list_init(&mp_list
);
1860 (mpath_cfg
->maxpaths_ebgp
> 1 || mpath_cfg
->maxpaths_ibgp
> 1);
1862 debug
= bgp_debug_bestpath(&rn
->p
);
1865 prefix2str(&rn
->p
, pfx_buf
, sizeof(pfx_buf
));
1867 /* bgp deterministic-med */
1869 if (bgp_flag_check(bgp
, BGP_FLAG_DETERMINISTIC_MED
)) {
1871 /* Clear BGP_PATH_DMED_SELECTED for all paths */
1872 for (pi1
= rn
->info
; pi1
; pi1
= pi1
->next
)
1873 bgp_path_info_unset_flag(rn
, pi1
,
1874 BGP_PATH_DMED_SELECTED
);
1876 for (pi1
= rn
->info
; pi1
; pi1
= pi1
->next
) {
1877 if (CHECK_FLAG(pi1
->flags
, BGP_PATH_DMED_CHECK
))
1879 if (BGP_PATH_HOLDDOWN(pi1
))
1881 if (pi1
->peer
&& pi1
->peer
!= bgp
->peer_self
)
1882 if (pi1
->peer
->status
!= Established
)
1887 for (pi2
= pi1
->next
; pi2
; pi2
= pi2
->next
) {
1888 if (CHECK_FLAG(pi2
->flags
,
1889 BGP_PATH_DMED_CHECK
))
1891 if (BGP_PATH_HOLDDOWN(pi2
))
1894 && pi2
->peer
!= bgp
->peer_self
1897 PEER_STATUS_NSF_WAIT
))
1898 if (pi2
->peer
->status
1902 if (!aspath_cmp_left(pi1
->attr
->aspath
,
1904 && !aspath_cmp_left_confed(
1909 if (bgp_path_info_cmp(
1910 bgp
, pi2
, new_select
,
1911 &paths_eq
, mpath_cfg
, debug
,
1912 pfx_buf
, afi
, safi
)) {
1913 bgp_path_info_unset_flag(
1915 BGP_PATH_DMED_SELECTED
);
1919 bgp_path_info_set_flag(
1920 rn
, pi2
, BGP_PATH_DMED_CHECK
);
1923 bgp_path_info_set_flag(rn
, new_select
,
1924 BGP_PATH_DMED_CHECK
);
1925 bgp_path_info_set_flag(rn
, new_select
,
1926 BGP_PATH_DMED_SELECTED
);
1929 bgp_path_info_path_with_addpath_rx_str(
1930 new_select
, path_buf
);
1931 zlog_debug("%s: %s is the bestpath from AS %u",
1933 aspath_get_first_as(
1934 new_select
->attr
->aspath
));
1939 /* Check old selected route and new selected route. */
1942 for (pi
= rn
->info
; (pi
!= NULL
) && (nextpi
= pi
->next
, 1);
1944 if (CHECK_FLAG(pi
->flags
, BGP_PATH_SELECTED
))
1947 if (BGP_PATH_HOLDDOWN(pi
)) {
1948 /* reap REMOVED routes, if needs be
1949 * selected route must stay for a while longer though
1951 if (CHECK_FLAG(pi
->flags
, BGP_PATH_REMOVED
)
1952 && (pi
!= old_select
))
1953 bgp_path_info_reap(rn
, pi
);
1956 zlog_debug("%s: pi %p in holddown", __func__
,
1962 if (pi
->peer
&& pi
->peer
!= bgp
->peer_self
1963 && !CHECK_FLAG(pi
->peer
->sflags
, PEER_STATUS_NSF_WAIT
))
1964 if (pi
->peer
->status
!= Established
) {
1968 "%s: pi %p non self peer %s not estab state",
1969 __func__
, pi
, pi
->peer
->host
);
1974 if (bgp_flag_check(bgp
, BGP_FLAG_DETERMINISTIC_MED
)
1975 && (!CHECK_FLAG(pi
->flags
, BGP_PATH_DMED_SELECTED
))) {
1976 bgp_path_info_unset_flag(rn
, pi
, BGP_PATH_DMED_CHECK
);
1978 zlog_debug("%s: pi %p dmed", __func__
, pi
);
1982 bgp_path_info_unset_flag(rn
, pi
, BGP_PATH_DMED_CHECK
);
1984 if (bgp_path_info_cmp(bgp
, pi
, new_select
, &paths_eq
, mpath_cfg
,
1985 debug
, pfx_buf
, afi
, safi
)) {
1990 /* Now that we know which path is the bestpath see if any of the other
1992 * qualify as multipaths
1996 bgp_path_info_path_with_addpath_rx_str(new_select
,
1999 sprintf(path_buf
, "NONE");
2001 "%s: After path selection, newbest is %s oldbest was %s",
2003 old_select
? old_select
->peer
->host
: "NONE");
2006 if (do_mpath
&& new_select
) {
2007 for (pi
= rn
->info
; (pi
!= NULL
) && (nextpi
= pi
->next
, 1);
2011 bgp_path_info_path_with_addpath_rx_str(
2014 if (pi
== new_select
) {
2017 "%s: %s is the bestpath, add to the multipath list",
2019 bgp_mp_list_add(&mp_list
, pi
);
2023 if (BGP_PATH_HOLDDOWN(pi
))
2026 if (pi
->peer
&& pi
->peer
!= bgp
->peer_self
2027 && !CHECK_FLAG(pi
->peer
->sflags
,
2028 PEER_STATUS_NSF_WAIT
))
2029 if (pi
->peer
->status
!= Established
)
2032 if (!bgp_path_info_nexthop_cmp(pi
, new_select
)) {
2035 "%s: %s has the same nexthop as the bestpath, skip it",
2040 bgp_path_info_cmp(bgp
, pi
, new_select
, &paths_eq
,
2041 mpath_cfg
, debug
, pfx_buf
, afi
, safi
);
2046 "%s: %s is equivalent to the bestpath, add to the multipath list",
2048 bgp_mp_list_add(&mp_list
, pi
);
2053 bgp_path_info_mpath_update(rn
, new_select
, old_select
, &mp_list
,
2055 bgp_path_info_mpath_aggregate_update(new_select
, old_select
);
2056 bgp_mp_list_clear(&mp_list
);
2058 result
->old
= old_select
;
2059 result
->new = new_select
;
2065 * A new route/change in bestpath of an existing route. Evaluate the path
2066 * for advertisement to the subgroup.
2068 int subgroup_process_announce_selected(struct update_subgroup
*subgrp
,
2069 struct bgp_path_info
*selected
,
2070 struct bgp_node
*rn
,
2071 uint32_t addpath_tx_id
)
2074 struct peer
*onlypeer
;
2080 afi
= SUBGRP_AFI(subgrp
);
2081 safi
= SUBGRP_SAFI(subgrp
);
2082 onlypeer
= ((SUBGRP_PCOUNT(subgrp
) == 1) ? (SUBGRP_PFIRST(subgrp
))->peer
2085 if (BGP_DEBUG(update
, UPDATE_OUT
)) {
2086 char buf_prefix
[PREFIX_STRLEN
];
2087 prefix2str(p
, buf_prefix
, sizeof(buf_prefix
));
2088 zlog_debug("%s: p=%s, selected=%p", __func__
, buf_prefix
,
2092 /* First update is deferred until ORF or ROUTE-REFRESH is received */
2093 if (onlypeer
&& CHECK_FLAG(onlypeer
->af_sflags
[afi
][safi
],
2094 PEER_STATUS_ORF_WAIT_REFRESH
))
2097 memset(&attr
, 0, sizeof(struct attr
));
2098 /* It's initialized in bgp_announce_check() */
2100 /* Announcement to the subgroup. If the route is filtered withdraw it.
2103 if (subgroup_announce_check(rn
, selected
, subgrp
, p
, &attr
))
2104 bgp_adj_out_set_subgroup(rn
, subgrp
, &attr
, selected
);
2106 bgp_adj_out_unset_subgroup(rn
, subgrp
, 1,
2107 selected
->addpath_tx_id
);
2110 /* If selected is NULL we must withdraw the path using addpath_tx_id */
2112 bgp_adj_out_unset_subgroup(rn
, subgrp
, 1, addpath_tx_id
);
2119 * Clear IGP changed flag and attribute changed flag for a route (all paths).
2120 * This is called at the end of route processing.
2122 void bgp_zebra_clear_route_change_flags(struct bgp_node
*rn
)
2124 struct bgp_path_info
*pi
;
2126 for (pi
= rn
->info
; pi
; pi
= pi
->next
) {
2127 if (BGP_PATH_HOLDDOWN(pi
))
2129 UNSET_FLAG(pi
->flags
, BGP_PATH_IGP_CHANGED
);
2130 UNSET_FLAG(pi
->flags
, BGP_PATH_ATTR_CHANGED
);
2135 * Has the route changed from the RIB's perspective? This is invoked only
2136 * if the route selection returns the same best route as earlier - to
2137 * determine if we need to update zebra or not.
2139 int bgp_zebra_has_route_changed(struct bgp_node
*rn
,
2140 struct bgp_path_info
*selected
)
2142 struct bgp_path_info
*mpinfo
;
2144 /* If this is multipath, check all selected paths for any nexthop
2145 * change or attribute change. Some attribute changes (e.g., community)
2146 * aren't of relevance to the RIB, but we'll update zebra to ensure
2147 * we handle the case of BGP nexthop change. This is the behavior
2148 * when the best path has an attribute change anyway.
2150 if (CHECK_FLAG(selected
->flags
, BGP_PATH_IGP_CHANGED
)
2151 || CHECK_FLAG(selected
->flags
, BGP_PATH_MULTIPATH_CHG
))
2155 * If this is multipath, check all selected paths for any nexthop change
2157 for (mpinfo
= bgp_path_info_mpath_first(selected
); mpinfo
;
2158 mpinfo
= bgp_path_info_mpath_next(mpinfo
)) {
2159 if (CHECK_FLAG(mpinfo
->flags
, BGP_PATH_IGP_CHANGED
)
2160 || CHECK_FLAG(mpinfo
->flags
, BGP_PATH_ATTR_CHANGED
))
2164 /* Nothing has changed from the RIB's perspective. */
2168 struct bgp_process_queue
{
2170 STAILQ_HEAD(, bgp_node
) pqueue
;
2171 #define BGP_PROCESS_QUEUE_EOIU_MARKER (1 << 0)
2173 unsigned int queued
;
2177 * old_select = The old best path
2178 * new_select = the new best path
2180 * if (!old_select && new_select)
2181 * We are sending new information on.
2183 * if (old_select && new_select) {
2184 * if (new_select != old_select)
2185 * We have a new best path send a change
2187 * We've received a update with new attributes that needs
2191 * if (old_select && !new_select)
2192 * We have no eligible route that we can announce or the rn
2195 static void bgp_process_main_one(struct bgp
*bgp
, struct bgp_node
*rn
,
2196 afi_t afi
, safi_t safi
)
2198 struct bgp_path_info
*new_select
;
2199 struct bgp_path_info
*old_select
;
2200 struct bgp_path_info_pair old_and_new
;
2201 char pfx_buf
[PREFIX2STR_BUFFER
];
2204 /* Is it end of initial update? (after startup) */
2206 quagga_timestamp(3, bgp
->update_delay_zebra_resume_time
,
2207 sizeof(bgp
->update_delay_zebra_resume_time
));
2209 bgp
->main_zebra_update_hold
= 0;
2210 FOREACH_AFI_SAFI (afi
, safi
) {
2211 if (bgp_fibupd_safi(safi
))
2212 bgp_zebra_announce_table(bgp
, afi
, safi
);
2214 bgp
->main_peers_update_hold
= 0;
2216 bgp_start_routeadv(bgp
);
2220 struct prefix
*p
= &rn
->p
;
2222 debug
= bgp_debug_bestpath(&rn
->p
);
2224 prefix2str(&rn
->p
, pfx_buf
, sizeof(pfx_buf
));
2225 zlog_debug("%s: p=%s afi=%s, safi=%s start", __func__
, pfx_buf
,
2226 afi2str(afi
), safi2str(safi
));
2229 /* Best path selection. */
2230 bgp_best_selection(bgp
, rn
, &bgp
->maxpaths
[afi
][safi
], &old_and_new
,
2232 old_select
= old_and_new
.old
;
2233 new_select
= old_and_new
.new;
2235 /* Do we need to allocate or free labels?
2236 * Right now, since we only deal with per-prefix labels, it is not
2237 * necessary to do this upon changes to best path except if the label
2240 if (bgp
->allocate_mpls_labels
[afi
][safi
]) {
2243 || bgp_label_index_differs(new_select
, old_select
)
2244 || new_select
->sub_type
!= old_select
->sub_type
) {
2245 if (new_select
->sub_type
== BGP_ROUTE_STATIC
2246 && new_select
->attr
->flag
2248 BGP_ATTR_PREFIX_SID
)
2249 && new_select
->attr
->label_index
2250 != BGP_INVALID_LABEL_INDEX
) {
2253 BGP_NODE_REGISTERED_FOR_LABEL
))
2254 bgp_unregister_for_label(rn
);
2255 label_ntop(MPLS_LABEL_IMPLICIT_NULL
, 1,
2257 bgp_set_valid_label(&rn
->local_label
);
2259 bgp_register_for_label(rn
, new_select
);
2261 } else if (CHECK_FLAG(rn
->flags
,
2262 BGP_NODE_REGISTERED_FOR_LABEL
)) {
2263 bgp_unregister_for_label(rn
);
2265 } else if (CHECK_FLAG(rn
->flags
, BGP_NODE_REGISTERED_FOR_LABEL
)) {
2266 bgp_unregister_for_label(rn
);
2270 prefix2str(&rn
->p
, pfx_buf
, sizeof(pfx_buf
));
2272 "%s: p=%s afi=%s, safi=%s, old_select=%p, new_select=%p",
2273 __func__
, pfx_buf
, afi2str(afi
), safi2str(safi
),
2274 old_select
, new_select
);
2277 /* If best route remains the same and this is not due to user-initiated
2278 * clear, see exactly what needs to be done.
2280 if (old_select
&& old_select
== new_select
2281 && !CHECK_FLAG(rn
->flags
, BGP_NODE_USER_CLEAR
)
2282 && !CHECK_FLAG(old_select
->flags
, BGP_PATH_ATTR_CHANGED
)
2283 && !bgp
->addpath_tx_used
[afi
][safi
]) {
2284 if (bgp_zebra_has_route_changed(rn
, old_select
)) {
2286 vnc_import_bgp_add_route(bgp
, p
, old_select
);
2287 vnc_import_bgp_exterior_add_route(bgp
, p
, old_select
);
2289 if (bgp_fibupd_safi(safi
)
2290 && !bgp_option_check(BGP_OPT_NO_FIB
)) {
2292 if (new_select
->type
== ZEBRA_ROUTE_BGP
2293 && (new_select
->sub_type
== BGP_ROUTE_NORMAL
2294 || new_select
->sub_type
2295 == BGP_ROUTE_IMPORTED
))
2297 bgp_zebra_announce(rn
, p
, old_select
,
2301 UNSET_FLAG(old_select
->flags
, BGP_PATH_MULTIPATH_CHG
);
2302 bgp_zebra_clear_route_change_flags(rn
);
2304 /* If there is a change of interest to peers, reannounce the
2306 if (CHECK_FLAG(old_select
->flags
, BGP_PATH_ATTR_CHANGED
)
2307 || CHECK_FLAG(rn
->flags
, BGP_NODE_LABEL_CHANGED
)) {
2308 group_announce_route(bgp
, afi
, safi
, rn
, new_select
);
2310 /* unicast routes must also be annouced to
2311 * labeled-unicast update-groups */
2312 if (safi
== SAFI_UNICAST
)
2313 group_announce_route(bgp
, afi
,
2314 SAFI_LABELED_UNICAST
, rn
,
2317 UNSET_FLAG(old_select
->flags
, BGP_PATH_ATTR_CHANGED
);
2318 UNSET_FLAG(rn
->flags
, BGP_NODE_LABEL_CHANGED
);
2321 UNSET_FLAG(rn
->flags
, BGP_NODE_PROCESS_SCHEDULED
);
2325 /* If the user did "clear ip bgp prefix x.x.x.x" this flag will be set
2327 UNSET_FLAG(rn
->flags
, BGP_NODE_USER_CLEAR
);
2329 /* bestpath has changed; bump version */
2330 if (old_select
|| new_select
) {
2331 bgp_bump_version(rn
);
2333 if (!bgp
->t_rmap_def_originate_eval
) {
2337 update_group_refresh_default_originate_route_map
,
2338 bgp
, RMAP_DEFAULT_ORIGINATE_EVAL_TIMER
,
2339 &bgp
->t_rmap_def_originate_eval
);
2344 bgp_path_info_unset_flag(rn
, old_select
, BGP_PATH_SELECTED
);
2347 zlog_debug("%s: setting SELECTED flag", __func__
);
2348 bgp_path_info_set_flag(rn
, new_select
, BGP_PATH_SELECTED
);
2349 bgp_path_info_unset_flag(rn
, new_select
, BGP_PATH_ATTR_CHANGED
);
2350 UNSET_FLAG(new_select
->flags
, BGP_PATH_MULTIPATH_CHG
);
2354 if ((afi
== AFI_IP
|| afi
== AFI_IP6
) && (safi
== SAFI_UNICAST
)) {
2355 if (old_select
!= new_select
) {
2357 vnc_import_bgp_exterior_del_route(bgp
, p
,
2359 vnc_import_bgp_del_route(bgp
, p
, old_select
);
2362 vnc_import_bgp_exterior_add_route(bgp
, p
,
2364 vnc_import_bgp_add_route(bgp
, p
, new_select
);
2370 group_announce_route(bgp
, afi
, safi
, rn
, new_select
);
2372 /* unicast routes must also be annouced to labeled-unicast update-groups
2374 if (safi
== SAFI_UNICAST
)
2375 group_announce_route(bgp
, afi
, SAFI_LABELED_UNICAST
, rn
,
2379 if (bgp_fibupd_safi(safi
) && (bgp
->inst_type
!= BGP_INSTANCE_TYPE_VIEW
)
2380 && !bgp_option_check(BGP_OPT_NO_FIB
)) {
2381 if (new_select
&& new_select
->type
== ZEBRA_ROUTE_BGP
2382 && (new_select
->sub_type
== BGP_ROUTE_NORMAL
2383 || new_select
->sub_type
== BGP_ROUTE_AGGREGATE
2384 || new_select
->sub_type
== BGP_ROUTE_IMPORTED
)) {
2386 /* if this is an evpn imported type-5 prefix,
2387 * we need to withdraw the route first to clear
2388 * the nh neigh and the RMAC entry.
2391 is_route_parent_evpn(old_select
))
2392 bgp_zebra_withdraw(p
, old_select
, bgp
, safi
);
2394 bgp_zebra_announce(rn
, p
, new_select
, bgp
, afi
, safi
);
2396 /* Withdraw the route from the kernel. */
2397 if (old_select
&& old_select
->type
== ZEBRA_ROUTE_BGP
2398 && (old_select
->sub_type
== BGP_ROUTE_NORMAL
2399 || old_select
->sub_type
== BGP_ROUTE_AGGREGATE
2400 || old_select
->sub_type
== BGP_ROUTE_IMPORTED
))
2402 bgp_zebra_withdraw(p
, old_select
, bgp
, safi
);
2406 /* advertise/withdraw type-5 routes */
2407 if ((afi
== AFI_IP
|| afi
== AFI_IP6
) && (safi
== SAFI_UNICAST
)) {
2408 if (advertise_type5_routes(bgp
, afi
) && new_select
&&
2409 (!new_select
->extra
|| !new_select
->extra
->parent
)) {
2411 /* apply the route-map */
2412 if (bgp
->adv_cmd_rmap
[afi
][safi
].map
) {
2415 ret
= route_map_apply(
2416 bgp
->adv_cmd_rmap
[afi
][safi
].map
,
2417 &rn
->p
, RMAP_BGP
, new_select
);
2418 if (ret
== RMAP_MATCH
)
2419 bgp_evpn_advertise_type5_route(
2420 bgp
, &rn
->p
, new_select
->attr
,
2423 bgp_evpn_advertise_type5_route(bgp
,
2429 } else if (advertise_type5_routes(bgp
, afi
) && old_select
&&
2430 (!old_select
->extra
|| !old_select
->extra
->parent
))
2431 bgp_evpn_withdraw_type5_route(bgp
, &rn
->p
, afi
, safi
);
2434 /* Clear any route change flags. */
2435 bgp_zebra_clear_route_change_flags(rn
);
2437 /* Reap old select bgp_path_info, if it has been removed */
2438 if (old_select
&& CHECK_FLAG(old_select
->flags
, BGP_PATH_REMOVED
))
2439 bgp_path_info_reap(rn
, old_select
);
2441 UNSET_FLAG(rn
->flags
, BGP_NODE_PROCESS_SCHEDULED
);
2445 static wq_item_status
bgp_process_wq(struct work_queue
*wq
, void *data
)
2447 struct bgp_process_queue
*pqnode
= data
;
2448 struct bgp
*bgp
= pqnode
->bgp
;
2449 struct bgp_table
*table
;
2450 struct bgp_node
*rn
;
2453 if (CHECK_FLAG(pqnode
->flags
, BGP_PROCESS_QUEUE_EOIU_MARKER
)) {
2454 bgp_process_main_one(bgp
, NULL
, 0, 0);
2455 /* should always have dedicated wq call */
2456 assert(STAILQ_FIRST(&pqnode
->pqueue
) == NULL
);
2460 while (!STAILQ_EMPTY(&pqnode
->pqueue
)) {
2461 rn
= STAILQ_FIRST(&pqnode
->pqueue
);
2462 STAILQ_REMOVE_HEAD(&pqnode
->pqueue
, pq
);
2463 STAILQ_NEXT(rn
, pq
) = NULL
; /* complete unlink */
2464 table
= bgp_node_table(rn
);
2465 /* note, new RNs may be added as part of processing */
2466 bgp_process_main_one(bgp
, rn
, table
->afi
, table
->safi
);
2468 bgp_unlock_node(rn
);
2469 bgp_table_unlock(table
);
2475 static void bgp_processq_del(struct work_queue
*wq
, void *data
)
2477 struct bgp_process_queue
*pqnode
= data
;
2479 bgp_unlock(pqnode
->bgp
);
2481 XFREE(MTYPE_BGP_PROCESS_QUEUE
, pqnode
);
2484 void bgp_process_queue_init(void)
2486 if (!bm
->process_main_queue
)
2487 bm
->process_main_queue
=
2488 work_queue_new(bm
->master
, "process_main_queue");
2490 bm
->process_main_queue
->spec
.workfunc
= &bgp_process_wq
;
2491 bm
->process_main_queue
->spec
.del_item_data
= &bgp_processq_del
;
2492 bm
->process_main_queue
->spec
.max_retries
= 0;
2493 bm
->process_main_queue
->spec
.hold
= 50;
2494 /* Use a higher yield value of 50ms for main queue processing */
2495 bm
->process_main_queue
->spec
.yield
= 50 * 1000L;
2498 static struct bgp_process_queue
*bgp_processq_alloc(struct bgp
*bgp
)
2500 struct bgp_process_queue
*pqnode
;
2502 pqnode
= XCALLOC(MTYPE_BGP_PROCESS_QUEUE
,
2503 sizeof(struct bgp_process_queue
));
2505 /* unlocked in bgp_processq_del */
2506 pqnode
->bgp
= bgp_lock(bgp
);
2507 STAILQ_INIT(&pqnode
->pqueue
);
2512 void bgp_process(struct bgp
*bgp
, struct bgp_node
*rn
, afi_t afi
, safi_t safi
)
2514 #define ARBITRARY_PROCESS_QLEN 10000
2515 struct work_queue
*wq
= bm
->process_main_queue
;
2516 struct bgp_process_queue
*pqnode
;
2517 int pqnode_reuse
= 0;
2519 /* already scheduled for processing? */
2520 if (CHECK_FLAG(rn
->flags
, BGP_NODE_PROCESS_SCHEDULED
))
2526 /* Add route nodes to an existing work queue item until reaching the
2527 limit only if is from the same BGP view and it's not an EOIU marker
2529 if (work_queue_item_count(wq
)) {
2530 struct work_queue_item
*item
= work_queue_last_item(wq
);
2531 pqnode
= item
->data
;
2533 if (CHECK_FLAG(pqnode
->flags
, BGP_PROCESS_QUEUE_EOIU_MARKER
)
2534 || pqnode
->bgp
!= bgp
2535 || pqnode
->queued
>= ARBITRARY_PROCESS_QLEN
)
2536 pqnode
= bgp_processq_alloc(bgp
);
2540 pqnode
= bgp_processq_alloc(bgp
);
2541 /* all unlocked in bgp_process_wq */
2542 bgp_table_lock(bgp_node_table(rn
));
2544 SET_FLAG(rn
->flags
, BGP_NODE_PROCESS_SCHEDULED
);
2547 /* can't be enqueued twice */
2548 assert(STAILQ_NEXT(rn
, pq
) == NULL
);
2549 STAILQ_INSERT_TAIL(&pqnode
->pqueue
, rn
, pq
);
2553 work_queue_add(wq
, pqnode
);
2558 void bgp_add_eoiu_mark(struct bgp
*bgp
)
2560 struct bgp_process_queue
*pqnode
;
2562 if (bm
->process_main_queue
== NULL
)
2565 pqnode
= bgp_processq_alloc(bgp
);
2567 SET_FLAG(pqnode
->flags
, BGP_PROCESS_QUEUE_EOIU_MARKER
);
2568 work_queue_add(bm
->process_main_queue
, pqnode
);
2571 static int bgp_maximum_prefix_restart_timer(struct thread
*thread
)
2575 peer
= THREAD_ARG(thread
);
2576 peer
->t_pmax_restart
= NULL
;
2578 if (bgp_debug_neighbor_events(peer
))
2580 "%s Maximum-prefix restart timer expired, restore peering",
2583 if ((peer_clear(peer
, NULL
) < 0) && bgp_debug_neighbor_events(peer
))
2584 zlog_debug("%s: %s peer_clear failed",
2585 __PRETTY_FUNCTION__
, peer
->host
);
2590 int bgp_maximum_prefix_overflow(struct peer
*peer
, afi_t afi
, safi_t safi
,
2594 iana_safi_t pkt_safi
;
2596 if (!CHECK_FLAG(peer
->af_flags
[afi
][safi
], PEER_FLAG_MAX_PREFIX
))
2599 if (peer
->pcount
[afi
][safi
] > peer
->pmax
[afi
][safi
]) {
2600 if (CHECK_FLAG(peer
->af_sflags
[afi
][safi
],
2601 PEER_STATUS_PREFIX_LIMIT
)
2606 "%%MAXPFXEXCEED: No. of %s prefix received from %s %ld exceed, "
2608 afi_safi_print(afi
, safi
), peer
->host
,
2609 peer
->pcount
[afi
][safi
], peer
->pmax
[afi
][safi
]);
2610 SET_FLAG(peer
->af_sflags
[afi
][safi
], PEER_STATUS_PREFIX_LIMIT
);
2612 if (CHECK_FLAG(peer
->af_flags
[afi
][safi
],
2613 PEER_FLAG_MAX_PREFIX_WARNING
))
2616 /* Convert AFI, SAFI to values for packet. */
2617 pkt_afi
= afi_int2iana(afi
);
2618 pkt_safi
= safi_int2iana(safi
);
2622 ndata
[0] = (pkt_afi
>> 8);
2624 ndata
[2] = pkt_safi
;
2625 ndata
[3] = (peer
->pmax
[afi
][safi
] >> 24);
2626 ndata
[4] = (peer
->pmax
[afi
][safi
] >> 16);
2627 ndata
[5] = (peer
->pmax
[afi
][safi
] >> 8);
2628 ndata
[6] = (peer
->pmax
[afi
][safi
]);
2630 SET_FLAG(peer
->sflags
, PEER_STATUS_PREFIX_OVERFLOW
);
2631 bgp_notify_send_with_data(peer
, BGP_NOTIFY_CEASE
,
2632 BGP_NOTIFY_CEASE_MAX_PREFIX
,
2636 /* Dynamic peers will just close their connection. */
2637 if (peer_dynamic_neighbor(peer
))
2640 /* restart timer start */
2641 if (peer
->pmax_restart
[afi
][safi
]) {
2642 peer
->v_pmax_restart
=
2643 peer
->pmax_restart
[afi
][safi
] * 60;
2645 if (bgp_debug_neighbor_events(peer
))
2647 "%s Maximum-prefix restart timer started for %d secs",
2648 peer
->host
, peer
->v_pmax_restart
);
2650 BGP_TIMER_ON(peer
->t_pmax_restart
,
2651 bgp_maximum_prefix_restart_timer
,
2652 peer
->v_pmax_restart
);
2657 UNSET_FLAG(peer
->af_sflags
[afi
][safi
],
2658 PEER_STATUS_PREFIX_LIMIT
);
2660 if (peer
->pcount
[afi
][safi
]
2661 > (peer
->pmax
[afi
][safi
] * peer
->pmax_threshold
[afi
][safi
] / 100)) {
2662 if (CHECK_FLAG(peer
->af_sflags
[afi
][safi
],
2663 PEER_STATUS_PREFIX_THRESHOLD
)
2668 "%%MAXPFX: No. of %s prefix received from %s reaches %ld, max %ld",
2669 afi_safi_print(afi
, safi
), peer
->host
,
2670 peer
->pcount
[afi
][safi
], peer
->pmax
[afi
][safi
]);
2671 SET_FLAG(peer
->af_sflags
[afi
][safi
],
2672 PEER_STATUS_PREFIX_THRESHOLD
);
2674 UNSET_FLAG(peer
->af_sflags
[afi
][safi
],
2675 PEER_STATUS_PREFIX_THRESHOLD
);
2679 /* Unconditionally remove the route from the RIB, without taking
2680 * damping into consideration (eg, because the session went down)
2682 void bgp_rib_remove(struct bgp_node
*rn
, struct bgp_path_info
*pi
,
2683 struct peer
*peer
, afi_t afi
, safi_t safi
)
2685 bgp_aggregate_decrement(peer
->bgp
, &rn
->p
, pi
, afi
, safi
);
2687 if (!CHECK_FLAG(pi
->flags
, BGP_PATH_HISTORY
))
2688 bgp_path_info_delete(rn
, pi
); /* keep historical info */
2690 bgp_process(peer
->bgp
, rn
, afi
, safi
);
2693 static void bgp_rib_withdraw(struct bgp_node
*rn
, struct bgp_path_info
*pi
,
2694 struct peer
*peer
, afi_t afi
, safi_t safi
,
2695 struct prefix_rd
*prd
)
2697 /* apply dampening, if result is suppressed, we'll be retaining
2698 * the bgp_path_info in the RIB for historical reference.
2700 if (CHECK_FLAG(peer
->bgp
->af_flags
[afi
][safi
], BGP_CONFIG_DAMPENING
)
2701 && peer
->sort
== BGP_PEER_EBGP
)
2702 if ((bgp_damp_withdraw(pi
, rn
, afi
, safi
, 0))
2703 == BGP_DAMP_SUPPRESSED
) {
2704 bgp_aggregate_decrement(peer
->bgp
, &rn
->p
, pi
, afi
,
2710 if (safi
== SAFI_MPLS_VPN
) {
2711 struct bgp_node
*prn
= NULL
;
2712 struct bgp_table
*table
= NULL
;
2714 prn
= bgp_node_get(peer
->bgp
->rib
[afi
][safi
],
2715 (struct prefix
*)prd
);
2717 table
= (struct bgp_table
*)(prn
->info
);
2719 vnc_import_bgp_del_vnc_host_route_mode_resolve_nve(
2720 peer
->bgp
, prd
, table
, &rn
->p
, pi
);
2722 bgp_unlock_node(prn
);
2724 if ((afi
== AFI_IP
|| afi
== AFI_IP6
) && (safi
== SAFI_UNICAST
)) {
2725 if (CHECK_FLAG(pi
->flags
, BGP_PATH_SELECTED
)) {
2727 vnc_import_bgp_del_route(peer
->bgp
, &rn
->p
, pi
);
2728 vnc_import_bgp_exterior_del_route(peer
->bgp
, &rn
->p
,
2734 /* If this is an EVPN route, process for un-import. */
2735 if (safi
== SAFI_EVPN
)
2736 bgp_evpn_unimport_route(peer
->bgp
, afi
, safi
, &rn
->p
, pi
);
2738 bgp_rib_remove(rn
, pi
, peer
, afi
, safi
);
2741 struct bgp_path_info
*info_make(int type
, int sub_type
, unsigned short instance
,
2742 struct peer
*peer
, struct attr
*attr
,
2743 struct bgp_node
*rn
)
2745 struct bgp_path_info
*new;
2747 /* Make new BGP info. */
2748 new = XCALLOC(MTYPE_BGP_ROUTE
, sizeof(struct bgp_path_info
));
2750 new->instance
= instance
;
2751 new->sub_type
= sub_type
;
2754 new->uptime
= bgp_clock();
2756 new->addpath_tx_id
= ++peer
->bgp
->addpath_tx_id
;
2760 static void overlay_index_update(struct attr
*attr
,
2761 struct eth_segment_id
*eth_s_id
,
2762 union gw_addr
*gw_ip
)
2767 if (eth_s_id
== NULL
) {
2768 memset(&(attr
->evpn_overlay
.eth_s_id
), 0,
2769 sizeof(struct eth_segment_id
));
2771 memcpy(&(attr
->evpn_overlay
.eth_s_id
), eth_s_id
,
2772 sizeof(struct eth_segment_id
));
2774 if (gw_ip
== NULL
) {
2775 memset(&(attr
->evpn_overlay
.gw_ip
), 0, sizeof(union gw_addr
));
2777 memcpy(&(attr
->evpn_overlay
.gw_ip
), gw_ip
,
2778 sizeof(union gw_addr
));
2782 static bool overlay_index_equal(afi_t afi
, struct bgp_path_info
*path
,
2783 struct eth_segment_id
*eth_s_id
,
2784 union gw_addr
*gw_ip
)
2786 struct eth_segment_id
*path_eth_s_id
, *path_eth_s_id_remote
;
2787 union gw_addr
*path_gw_ip
, *path_gw_ip_remote
;
2789 struct eth_segment_id esi
;
2793 if (afi
!= AFI_L2VPN
)
2796 memset(&temp
, 0, sizeof(temp
));
2797 path_eth_s_id
= &temp
.esi
;
2798 path_gw_ip
= &temp
.ip
;
2800 if (eth_s_id
== NULL
&& gw_ip
== NULL
)
2803 path_eth_s_id
= &(path
->attr
->evpn_overlay
.eth_s_id
);
2804 path_gw_ip
= &(path
->attr
->evpn_overlay
.gw_ip
);
2807 if (gw_ip
== NULL
) {
2808 memset(&temp
, 0, sizeof(temp
));
2809 path_gw_ip_remote
= &temp
.ip
;
2811 path_gw_ip_remote
= gw_ip
;
2813 if (eth_s_id
== NULL
) {
2814 memset(&temp
, 0, sizeof(temp
));
2815 path_eth_s_id_remote
= &temp
.esi
;
2817 path_eth_s_id_remote
= eth_s_id
;
2819 if (!memcmp(path_gw_ip
, path_gw_ip_remote
, sizeof(union gw_addr
)))
2822 return !memcmp(path_eth_s_id
, path_eth_s_id_remote
,
2823 sizeof(struct eth_segment_id
));
2826 /* Check if received nexthop is valid or not. */
2827 static int bgp_update_martian_nexthop(struct bgp
*bgp
, afi_t afi
, safi_t safi
,
2832 /* Only validated for unicast and multicast currently. */
2833 /* Also valid for EVPN where the nexthop is an IP address. */
2834 if (safi
!= SAFI_UNICAST
&& safi
!= SAFI_MULTICAST
&& safi
!= SAFI_EVPN
)
2837 /* If NEXT_HOP is present, validate it. */
2838 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_NEXT_HOP
)) {
2839 if (attr
->nexthop
.s_addr
== 0
2840 || IPV4_CLASS_DE(ntohl(attr
->nexthop
.s_addr
))
2841 || bgp_nexthop_self(bgp
, attr
->nexthop
))
2845 /* If MP_NEXTHOP is present, validate it. */
2846 /* Note: For IPv6 nexthops, we only validate the global (1st) nexthop;
2847 * there is code in bgp_attr.c to ignore the link-local (2nd) nexthop if
2848 * it is not an IPv6 link-local address.
2850 if (attr
->mp_nexthop_len
) {
2851 switch (attr
->mp_nexthop_len
) {
2852 case BGP_ATTR_NHLEN_IPV4
:
2853 case BGP_ATTR_NHLEN_VPNV4
:
2854 ret
= (attr
->mp_nexthop_global_in
.s_addr
== 0
2855 || IPV4_CLASS_DE(ntohl(
2856 attr
->mp_nexthop_global_in
.s_addr
))
2857 || bgp_nexthop_self(bgp
,
2858 attr
->mp_nexthop_global_in
));
2861 case BGP_ATTR_NHLEN_IPV6_GLOBAL
:
2862 case BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL
:
2863 case BGP_ATTR_NHLEN_VPNV6_GLOBAL
:
2864 ret
= (IN6_IS_ADDR_UNSPECIFIED(&attr
->mp_nexthop_global
)
2865 || IN6_IS_ADDR_LOOPBACK(&attr
->mp_nexthop_global
)
2866 || IN6_IS_ADDR_MULTICAST(
2867 &attr
->mp_nexthop_global
));
2879 int bgp_update(struct peer
*peer
, struct prefix
*p
, uint32_t addpath_id
,
2880 struct attr
*attr
, afi_t afi
, safi_t safi
, int type
,
2881 int sub_type
, struct prefix_rd
*prd
, mpls_label_t
*label
,
2882 uint32_t num_labels
, int soft_reconfig
,
2883 struct bgp_route_evpn
*evpn
)
2886 int aspath_loop_count
= 0;
2887 struct bgp_node
*rn
;
2889 struct attr new_attr
;
2890 struct attr
*attr_new
;
2891 struct bgp_path_info
*pi
;
2892 struct bgp_path_info
*new;
2893 struct bgp_path_info_extra
*extra
;
2895 char pfx_buf
[BGP_PRD_PATH_STRLEN
];
2897 int do_loop_check
= 1;
2898 int has_valid_label
= 0;
2900 int vnc_implicit_withdraw
= 0;
2904 memset(&new_attr
, 0, sizeof(struct attr
));
2905 new_attr
.label_index
= BGP_INVALID_LABEL_INDEX
;
2906 new_attr
.label
= MPLS_INVALID_LABEL
;
2909 rn
= bgp_afi_node_get(bgp
->rib
[afi
][safi
], afi
, safi
, p
, prd
);
2910 /* TODO: Check to see if we can get rid of "is_valid_label" */
2911 if (afi
== AFI_L2VPN
&& safi
== SAFI_EVPN
)
2912 has_valid_label
= (num_labels
> 0) ? 1 : 0;
2914 has_valid_label
= bgp_is_valid_label(label
);
2916 /* When peer's soft reconfiguration enabled. Record input packet in
2919 && CHECK_FLAG(peer
->af_flags
[afi
][safi
], PEER_FLAG_SOFT_RECONFIG
)
2920 && peer
!= bgp
->peer_self
)
2921 bgp_adj_in_set(rn
, peer
, attr
, addpath_id
);
2923 /* Check previously received route. */
2924 for (pi
= rn
->info
; pi
; pi
= pi
->next
)
2925 if (pi
->peer
== peer
&& pi
->type
== type
2926 && pi
->sub_type
== sub_type
2927 && pi
->addpath_rx_id
== addpath_id
)
2930 /* AS path local-as loop check. */
2931 if (peer
->change_local_as
) {
2932 if (peer
->allowas_in
[afi
][safi
])
2933 aspath_loop_count
= peer
->allowas_in
[afi
][safi
];
2934 else if (!CHECK_FLAG(peer
->flags
,
2935 PEER_FLAG_LOCAL_AS_NO_PREPEND
))
2936 aspath_loop_count
= 1;
2938 if (aspath_loop_check(attr
->aspath
, peer
->change_local_as
)
2939 > aspath_loop_count
) {
2940 reason
= "as-path contains our own AS;";
2945 /* If the peer is configured for "allowas-in origin" and the last ASN in
2947 * as-path is our ASN then we do not need to call aspath_loop_check
2949 if (CHECK_FLAG(peer
->af_flags
[afi
][safi
], PEER_FLAG_ALLOWAS_IN_ORIGIN
))
2950 if (aspath_get_last_as(attr
->aspath
) == bgp
->as
)
2953 /* AS path loop check. */
2954 if (do_loop_check
) {
2955 if (aspath_loop_check(attr
->aspath
, bgp
->as
)
2956 > peer
->allowas_in
[afi
][safi
]
2957 || (CHECK_FLAG(bgp
->config
, BGP_CONFIG_CONFEDERATION
)
2958 && aspath_loop_check(attr
->aspath
, bgp
->confed_id
)
2959 > peer
->allowas_in
[afi
][safi
])) {
2960 reason
= "as-path contains our own AS;";
2965 /* Route reflector originator ID check. */
2966 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID
)
2967 && IPV4_ADDR_SAME(&bgp
->router_id
, &attr
->originator_id
)) {
2968 reason
= "originator is us;";
2972 /* Route reflector cluster ID check. */
2973 if (bgp_cluster_filter(peer
, attr
)) {
2974 reason
= "reflected from the same cluster;";
2978 /* Apply incoming filter. */
2979 if (bgp_input_filter(peer
, p
, attr
, afi
, safi
) == FILTER_DENY
) {
2984 bgp_attr_dup(&new_attr
, attr
);
2986 /* Apply incoming route-map.
2987 * NB: new_attr may now contain newly allocated values from route-map
2989 * commands, so we need bgp_attr_flush in the error paths, until we
2991 * the attr (which takes over the memory references) */
2992 if (bgp_input_modifier(peer
, p
, &new_attr
, afi
, safi
, NULL
)
2994 reason
= "route-map;";
2995 bgp_attr_flush(&new_attr
);
2999 if (peer
->sort
== BGP_PEER_EBGP
) {
3001 /* If we receive the graceful-shutdown community from an eBGP
3002 * peer we must lower local-preference */
3003 if (new_attr
.community
3004 && community_include(new_attr
.community
, COMMUNITY_GSHUT
)) {
3005 new_attr
.flag
|= ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
);
3006 new_attr
.local_pref
= BGP_GSHUT_LOCAL_PREF
;
3008 /* If graceful-shutdown is configured then add the GSHUT
3009 * community to all paths received from eBGP peers */
3010 } else if (bgp_flag_check(peer
->bgp
,
3011 BGP_FLAG_GRACEFUL_SHUTDOWN
)) {
3012 bgp_attr_add_gshut_community(&new_attr
);
3016 /* next hop check. */
3017 if (!CHECK_FLAG(peer
->flags
, PEER_FLAG_IS_RFAPI_HD
)
3018 && bgp_update_martian_nexthop(bgp
, afi
, safi
, &new_attr
)) {
3019 reason
= "martian or self next-hop;";
3020 bgp_attr_flush(&new_attr
);
3024 attr_new
= bgp_attr_intern(&new_attr
);
3026 /* If the update is implicit withdraw. */
3028 pi
->uptime
= bgp_clock();
3029 same_attr
= attrhash_cmp(pi
->attr
, attr_new
);
3031 /* Same attribute comes in. */
3032 if (!CHECK_FLAG(pi
->flags
, BGP_PATH_REMOVED
)
3033 && attrhash_cmp(pi
->attr
, attr_new
)
3034 && (!has_valid_label
3035 || memcmp(&(bgp_path_info_extra_get(pi
))->label
, label
,
3036 num_labels
* sizeof(mpls_label_t
))
3038 && (overlay_index_equal(
3039 afi
, pi
, evpn
== NULL
? NULL
: &evpn
->eth_s_id
,
3040 evpn
== NULL
? NULL
: &evpn
->gw_ip
))) {
3041 if (CHECK_FLAG(bgp
->af_flags
[afi
][safi
],
3042 BGP_CONFIG_DAMPENING
)
3043 && peer
->sort
== BGP_PEER_EBGP
3044 && CHECK_FLAG(pi
->flags
, BGP_PATH_HISTORY
)) {
3045 if (bgp_debug_update(peer
, p
, NULL
, 1)) {
3046 bgp_debug_rdpfxpath2str(
3047 afi
, safi
, prd
, p
, label
,
3048 num_labels
, addpath_id
? 1 : 0,
3049 addpath_id
, pfx_buf
,
3051 zlog_debug("%s rcvd %s", peer
->host
,
3055 if (bgp_damp_update(pi
, rn
, afi
, safi
)
3056 != BGP_DAMP_SUPPRESSED
) {
3057 bgp_aggregate_increment(bgp
, p
, pi
, afi
,
3059 bgp_process(bgp
, rn
, afi
, safi
);
3061 } else /* Duplicate - odd */
3063 if (bgp_debug_update(peer
, p
, NULL
, 1)) {
3064 if (!peer
->rcvd_attr_printed
) {
3066 "%s rcvd UPDATE w/ attr: %s",
3068 peer
->rcvd_attr_str
);
3069 peer
->rcvd_attr_printed
= 1;
3072 bgp_debug_rdpfxpath2str(
3073 afi
, safi
, prd
, p
, label
,
3074 num_labels
, addpath_id
? 1 : 0,
3075 addpath_id
, pfx_buf
,
3078 "%s rcvd %s...duplicate ignored",
3079 peer
->host
, pfx_buf
);
3082 /* graceful restart STALE flag unset. */
3083 if (CHECK_FLAG(pi
->flags
, BGP_PATH_STALE
)) {
3084 bgp_path_info_unset_flag(
3085 rn
, pi
, BGP_PATH_STALE
);
3086 bgp_process(bgp
, rn
, afi
, safi
);
3090 bgp_unlock_node(rn
);
3091 bgp_attr_unintern(&attr_new
);
3096 /* Withdraw/Announce before we fully processed the withdraw */
3097 if (CHECK_FLAG(pi
->flags
, BGP_PATH_REMOVED
)) {
3098 if (bgp_debug_update(peer
, p
, NULL
, 1)) {
3099 bgp_debug_rdpfxpath2str(
3100 afi
, safi
, prd
, p
, label
, num_labels
,
3101 addpath_id
? 1 : 0, addpath_id
, pfx_buf
,
3104 "%s rcvd %s, flapped quicker than processing",
3105 peer
->host
, pfx_buf
);
3108 bgp_path_info_restore(rn
, pi
);
3111 /* Received Logging. */
3112 if (bgp_debug_update(peer
, p
, NULL
, 1)) {
3113 bgp_debug_rdpfxpath2str(afi
, safi
, prd
, p
, label
,
3114 num_labels
, addpath_id
? 1 : 0,
3115 addpath_id
, pfx_buf
,
3117 zlog_debug("%s rcvd %s", peer
->host
, pfx_buf
);
3120 /* graceful restart STALE flag unset. */
3121 if (CHECK_FLAG(pi
->flags
, BGP_PATH_STALE
))
3122 bgp_path_info_unset_flag(rn
, pi
, BGP_PATH_STALE
);
3124 /* The attribute is changed. */
3125 bgp_path_info_set_flag(rn
, pi
, BGP_PATH_ATTR_CHANGED
);
3127 /* implicit withdraw, decrement aggregate and pcount here.
3128 * only if update is accepted, they'll increment below.
3130 bgp_aggregate_decrement(bgp
, p
, pi
, afi
, safi
);
3132 /* Update bgp route dampening information. */
3133 if (CHECK_FLAG(bgp
->af_flags
[afi
][safi
], BGP_CONFIG_DAMPENING
)
3134 && peer
->sort
== BGP_PEER_EBGP
) {
3135 /* This is implicit withdraw so we should update
3138 if (!CHECK_FLAG(pi
->flags
, BGP_PATH_HISTORY
))
3139 bgp_damp_withdraw(pi
, rn
, afi
, safi
, 1);
3142 if (safi
== SAFI_MPLS_VPN
) {
3143 struct bgp_node
*prn
= NULL
;
3144 struct bgp_table
*table
= NULL
;
3146 prn
= bgp_node_get(bgp
->rib
[afi
][safi
],
3147 (struct prefix
*)prd
);
3149 table
= (struct bgp_table
*)(prn
->info
);
3151 vnc_import_bgp_del_vnc_host_route_mode_resolve_nve(
3152 bgp
, prd
, table
, p
, pi
);
3154 bgp_unlock_node(prn
);
3156 if ((afi
== AFI_IP
|| afi
== AFI_IP6
)
3157 && (safi
== SAFI_UNICAST
)) {
3158 if (CHECK_FLAG(pi
->flags
, BGP_PATH_SELECTED
)) {
3160 * Implicit withdraw case.
3162 ++vnc_implicit_withdraw
;
3163 vnc_import_bgp_del_route(bgp
, p
, pi
);
3164 vnc_import_bgp_exterior_del_route(bgp
, p
, pi
);
3169 /* Special handling for EVPN update of an existing route. If the
3170 * extended community attribute has changed, we need to
3172 * the route using its existing extended community. It will be
3173 * subsequently processed for import with the new extended
3176 if (safi
== SAFI_EVPN
&& !same_attr
) {
3178 & ATTR_FLAG_BIT(BGP_ATTR_EXT_COMMUNITIES
))
3180 & ATTR_FLAG_BIT(BGP_ATTR_EXT_COMMUNITIES
))) {
3183 cmp
= ecommunity_cmp(pi
->attr
->ecommunity
,
3184 attr_new
->ecommunity
);
3186 if (bgp_debug_update(peer
, p
, NULL
, 1))
3188 "Change in EXT-COMM, existing %s new %s",
3190 pi
->attr
->ecommunity
),
3192 attr_new
->ecommunity
));
3193 bgp_evpn_unimport_route(bgp
, afi
, safi
,
3199 /* Update to new attribute. */
3200 bgp_attr_unintern(&pi
->attr
);
3201 pi
->attr
= attr_new
;
3203 /* Update MPLS label */
3204 if (has_valid_label
) {
3205 extra
= bgp_path_info_extra_get(pi
);
3206 memcpy(&extra
->label
, label
,
3207 num_labels
* sizeof(mpls_label_t
));
3208 extra
->num_labels
= num_labels
;
3209 if (!(afi
== AFI_L2VPN
&& safi
== SAFI_EVPN
))
3210 bgp_set_valid_label(&extra
->label
[0]);
3214 if ((afi
== AFI_IP
|| afi
== AFI_IP6
)
3215 && (safi
== SAFI_UNICAST
)) {
3216 if (vnc_implicit_withdraw
) {
3218 * Add back the route with its new attributes
3220 * The route is still selected, until the route
3222 * queued by bgp_process actually runs. We have
3224 * update to the VNC side immediately to avoid
3226 * configuration changes (e.g., route-map
3228 * trigger re-importation of the entire RIB.
3230 vnc_import_bgp_add_route(bgp
, p
, pi
);
3231 vnc_import_bgp_exterior_add_route(bgp
, p
, pi
);
3235 /* Update Overlay Index */
3236 if (afi
== AFI_L2VPN
) {
3237 overlay_index_update(
3238 pi
->attr
, evpn
== NULL
? NULL
: &evpn
->eth_s_id
,
3239 evpn
== NULL
? NULL
: &evpn
->gw_ip
);
3242 /* Update bgp route dampening information. */
3243 if (CHECK_FLAG(bgp
->af_flags
[afi
][safi
], BGP_CONFIG_DAMPENING
)
3244 && peer
->sort
== BGP_PEER_EBGP
) {
3245 /* Now we do normal update dampening. */
3246 ret
= bgp_damp_update(pi
, rn
, afi
, safi
);
3247 if (ret
== BGP_DAMP_SUPPRESSED
) {
3248 bgp_unlock_node(rn
);
3253 /* Nexthop reachability check - for unicast and
3254 * labeled-unicast.. */
3255 if ((afi
== AFI_IP
|| afi
== AFI_IP6
)
3256 && (safi
== SAFI_UNICAST
|| safi
== SAFI_LABELED_UNICAST
)) {
3257 if (peer
->sort
== BGP_PEER_EBGP
&& peer
->ttl
== 1
3258 && !CHECK_FLAG(peer
->flags
,
3259 PEER_FLAG_DISABLE_CONNECTED_CHECK
)
3261 bgp
, BGP_FLAG_DISABLE_NH_CONNECTED_CHK
))
3266 struct bgp
*bgp_nexthop
= bgp
;
3268 if (pi
->extra
&& pi
->extra
->bgp_orig
)
3269 bgp_nexthop
= pi
->extra
->bgp_orig
;
3271 if (bgp_find_or_add_nexthop(bgp
, bgp_nexthop
, afi
, pi
,
3273 || CHECK_FLAG(peer
->flags
, PEER_FLAG_IS_RFAPI_HD
))
3274 bgp_path_info_set_flag(rn
, pi
, BGP_PATH_VALID
);
3276 if (BGP_DEBUG(nht
, NHT
)) {
3277 char buf1
[INET6_ADDRSTRLEN
];
3279 (const void *)&attr_new
3281 buf1
, INET6_ADDRSTRLEN
);
3282 zlog_debug("%s(%s): NH unresolved",
3283 __FUNCTION__
, buf1
);
3285 bgp_path_info_unset_flag(rn
, pi
,
3289 bgp_path_info_set_flag(rn
, pi
, BGP_PATH_VALID
);
3292 if (safi
== SAFI_MPLS_VPN
) {
3293 struct bgp_node
*prn
= NULL
;
3294 struct bgp_table
*table
= NULL
;
3296 prn
= bgp_node_get(bgp
->rib
[afi
][safi
],
3297 (struct prefix
*)prd
);
3299 table
= (struct bgp_table
*)(prn
->info
);
3301 vnc_import_bgp_add_vnc_host_route_mode_resolve_nve(
3302 bgp
, prd
, table
, p
, pi
);
3304 bgp_unlock_node(prn
);
3308 /* If this is an EVPN route and some attribute has changed,
3310 * route for import. If the extended community has changed, we
3312 * have done the un-import earlier and the import would result
3314 * route getting injected into appropriate L2 VNIs. If it is
3316 * some other attribute change, the import will result in
3318 * the attributes for the route in the VNI(s).
3320 if (safi
== SAFI_EVPN
&& !same_attr
)
3321 bgp_evpn_import_route(bgp
, afi
, safi
, p
, pi
);
3323 /* Process change. */
3324 bgp_aggregate_increment(bgp
, p
, pi
, afi
, safi
);
3326 bgp_process(bgp
, rn
, afi
, safi
);
3327 bgp_unlock_node(rn
);
3329 if (SAFI_UNICAST
== safi
3330 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
3331 || bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
3333 vpn_leak_from_vrf_update(bgp_get_default(), bgp
, pi
);
3335 if ((SAFI_MPLS_VPN
== safi
)
3336 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
3338 vpn_leak_to_vrf_update(bgp
, pi
);
3342 if (SAFI_MPLS_VPN
== safi
) {
3343 mpls_label_t label_decoded
= decode_label(label
);
3345 rfapiProcessUpdate(peer
, NULL
, p
, prd
, attr
, afi
, safi
,
3346 type
, sub_type
, &label_decoded
);
3348 if (SAFI_ENCAP
== safi
) {
3349 rfapiProcessUpdate(peer
, NULL
, p
, prd
, attr
, afi
, safi
,
3350 type
, sub_type
, NULL
);
3355 } // End of implicit withdraw
3357 /* Received Logging. */
3358 if (bgp_debug_update(peer
, p
, NULL
, 1)) {
3359 if (!peer
->rcvd_attr_printed
) {
3360 zlog_debug("%s rcvd UPDATE w/ attr: %s", peer
->host
,
3361 peer
->rcvd_attr_str
);
3362 peer
->rcvd_attr_printed
= 1;
3365 bgp_debug_rdpfxpath2str(afi
, safi
, prd
, p
, label
, num_labels
,
3366 addpath_id
? 1 : 0, addpath_id
, pfx_buf
,
3368 zlog_debug("%s rcvd %s", peer
->host
, pfx_buf
);
3371 /* Make new BGP info. */
3372 new = info_make(type
, sub_type
, 0, peer
, attr_new
, rn
);
3374 /* Update MPLS label */
3375 if (has_valid_label
) {
3376 extra
= bgp_path_info_extra_get(new);
3377 memcpy(&extra
->label
, label
, num_labels
* sizeof(mpls_label_t
));
3378 extra
->num_labels
= num_labels
;
3379 if (!(afi
== AFI_L2VPN
&& safi
== SAFI_EVPN
))
3380 bgp_set_valid_label(&extra
->label
[0]);
3383 /* Update Overlay Index */
3384 if (afi
== AFI_L2VPN
) {
3385 overlay_index_update(new->attr
,
3386 evpn
== NULL
? NULL
: &evpn
->eth_s_id
,
3387 evpn
== NULL
? NULL
: &evpn
->gw_ip
);
3389 /* Nexthop reachability check. */
3390 if ((afi
== AFI_IP
|| afi
== AFI_IP6
)
3391 && (safi
== SAFI_UNICAST
|| safi
== SAFI_LABELED_UNICAST
)) {
3392 if (peer
->sort
== BGP_PEER_EBGP
&& peer
->ttl
== 1
3393 && !CHECK_FLAG(peer
->flags
,
3394 PEER_FLAG_DISABLE_CONNECTED_CHECK
)
3395 && !bgp_flag_check(bgp
, BGP_FLAG_DISABLE_NH_CONNECTED_CHK
))
3400 if (bgp_find_or_add_nexthop(bgp
, bgp
, afi
, new, NULL
, connected
)
3401 || CHECK_FLAG(peer
->flags
, PEER_FLAG_IS_RFAPI_HD
))
3402 bgp_path_info_set_flag(rn
, new, BGP_PATH_VALID
);
3404 if (BGP_DEBUG(nht
, NHT
)) {
3405 char buf1
[INET6_ADDRSTRLEN
];
3407 (const void *)&attr_new
->nexthop
,
3408 buf1
, INET6_ADDRSTRLEN
);
3409 zlog_debug("%s(%s): NH unresolved",
3410 __FUNCTION__
, buf1
);
3412 bgp_path_info_unset_flag(rn
, new, BGP_PATH_VALID
);
3415 bgp_path_info_set_flag(rn
, new, BGP_PATH_VALID
);
3418 new->addpath_rx_id
= addpath_id
;
3420 /* Increment prefix */
3421 bgp_aggregate_increment(bgp
, p
, new, afi
, safi
);
3423 /* Register new BGP information. */
3424 bgp_path_info_add(rn
, new);
3426 /* route_node_get lock */
3427 bgp_unlock_node(rn
);
3430 if (safi
== SAFI_MPLS_VPN
) {
3431 struct bgp_node
*prn
= NULL
;
3432 struct bgp_table
*table
= NULL
;
3434 prn
= bgp_node_get(bgp
->rib
[afi
][safi
], (struct prefix
*)prd
);
3436 table
= (struct bgp_table
*)(prn
->info
);
3438 vnc_import_bgp_add_vnc_host_route_mode_resolve_nve(
3439 bgp
, prd
, table
, p
, new);
3441 bgp_unlock_node(prn
);
3445 /* If maximum prefix count is configured and current prefix
3447 if (bgp_maximum_prefix_overflow(peer
, afi
, safi
, 0))
3450 /* If this is an EVPN route, process for import. */
3451 if (safi
== SAFI_EVPN
)
3452 bgp_evpn_import_route(bgp
, afi
, safi
, p
, new);
3454 /* Process change. */
3455 bgp_process(bgp
, rn
, afi
, safi
);
3457 if (SAFI_UNICAST
== safi
3458 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
3459 || bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
3460 vpn_leak_from_vrf_update(bgp_get_default(), bgp
, new);
3462 if ((SAFI_MPLS_VPN
== safi
)
3463 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
3465 vpn_leak_to_vrf_update(bgp
, new);
3468 if (SAFI_MPLS_VPN
== safi
) {
3469 mpls_label_t label_decoded
= decode_label(label
);
3471 rfapiProcessUpdate(peer
, NULL
, p
, prd
, attr
, afi
, safi
, type
,
3472 sub_type
, &label_decoded
);
3474 if (SAFI_ENCAP
== safi
) {
3475 rfapiProcessUpdate(peer
, NULL
, p
, prd
, attr
, afi
, safi
, type
,
3482 /* This BGP update is filtered. Log the reason then update BGP
3485 if (bgp_debug_update(peer
, p
, NULL
, 1)) {
3486 if (!peer
->rcvd_attr_printed
) {
3487 zlog_debug("%s rcvd UPDATE w/ attr: %s", peer
->host
,
3488 peer
->rcvd_attr_str
);
3489 peer
->rcvd_attr_printed
= 1;
3492 bgp_debug_rdpfxpath2str(afi
, safi
, prd
, p
, label
, num_labels
,
3493 addpath_id
? 1 : 0, addpath_id
, pfx_buf
,
3495 zlog_debug("%s rcvd UPDATE about %s -- DENIED due to: %s",
3496 peer
->host
, pfx_buf
, reason
);
3500 /* If this is an EVPN route, un-import it as it is now filtered.
3502 if (safi
== SAFI_EVPN
)
3503 bgp_evpn_unimport_route(bgp
, afi
, safi
, p
, pi
);
3505 if (SAFI_UNICAST
== safi
3506 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
3507 || bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
3509 vpn_leak_from_vrf_withdraw(bgp_get_default(), bgp
, pi
);
3511 if ((SAFI_MPLS_VPN
== safi
)
3512 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
3514 vpn_leak_to_vrf_withdraw(bgp
, pi
);
3517 bgp_rib_remove(rn
, pi
, peer
, afi
, safi
);
3520 bgp_unlock_node(rn
);
3524 * Filtered update is treated as an implicit withdrawal (see
3526 * a few lines above)
3528 if ((SAFI_MPLS_VPN
== safi
) || (SAFI_ENCAP
== safi
)) {
3529 rfapiProcessWithdraw(peer
, NULL
, p
, prd
, NULL
, afi
, safi
, type
,
3537 int bgp_withdraw(struct peer
*peer
, struct prefix
*p
, uint32_t addpath_id
,
3538 struct attr
*attr
, afi_t afi
, safi_t safi
, int type
,
3539 int sub_type
, struct prefix_rd
*prd
, mpls_label_t
*label
,
3540 uint32_t num_labels
, struct bgp_route_evpn
*evpn
)
3543 char pfx_buf
[BGP_PRD_PATH_STRLEN
];
3544 struct bgp_node
*rn
;
3545 struct bgp_path_info
*pi
;
3548 if ((SAFI_MPLS_VPN
== safi
) || (SAFI_ENCAP
== safi
)) {
3549 rfapiProcessWithdraw(peer
, NULL
, p
, prd
, NULL
, afi
, safi
, type
,
3557 rn
= bgp_afi_node_get(bgp
->rib
[afi
][safi
], afi
, safi
, p
, prd
);
3559 /* If peer is soft reconfiguration enabled. Record input packet for
3560 * further calculation.
3562 * Cisco IOS 12.4(24)T4 on session establishment sends withdraws for all
3563 * routes that are filtered. This tanks out Quagga RS pretty badly due
3565 * the iteration over all RS clients.
3566 * Since we need to remove the entry from adj_in anyway, do that first
3568 * if there was no entry, we don't need to do anything more.
3570 if (CHECK_FLAG(peer
->af_flags
[afi
][safi
], PEER_FLAG_SOFT_RECONFIG
)
3571 && peer
!= bgp
->peer_self
)
3572 if (!bgp_adj_in_unset(rn
, peer
, addpath_id
)) {
3573 if (bgp_debug_update(peer
, p
, NULL
, 1)) {
3574 bgp_debug_rdpfxpath2str(
3575 afi
, safi
, prd
, p
, label
, num_labels
,
3576 addpath_id
? 1 : 0, addpath_id
, pfx_buf
,
3579 "%s withdrawing route %s not in adj-in",
3580 peer
->host
, pfx_buf
);
3582 bgp_unlock_node(rn
);
3586 /* Lookup withdrawn route. */
3587 for (pi
= rn
->info
; pi
; pi
= pi
->next
)
3588 if (pi
->peer
== peer
&& pi
->type
== type
3589 && pi
->sub_type
== sub_type
3590 && pi
->addpath_rx_id
== addpath_id
)
3594 if (bgp_debug_update(peer
, p
, NULL
, 1)) {
3595 bgp_debug_rdpfxpath2str(afi
, safi
, prd
, p
, label
, num_labels
,
3596 addpath_id
? 1 : 0, addpath_id
, pfx_buf
,
3598 zlog_debug("%s rcvd UPDATE about %s -- withdrawn", peer
->host
,
3602 /* Withdraw specified route from routing table. */
3603 if (pi
&& !CHECK_FLAG(pi
->flags
, BGP_PATH_HISTORY
)) {
3604 bgp_rib_withdraw(rn
, pi
, peer
, afi
, safi
, prd
);
3605 if (SAFI_UNICAST
== safi
3606 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
3607 || bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
3608 vpn_leak_from_vrf_withdraw(bgp_get_default(), bgp
, pi
);
3610 if ((SAFI_MPLS_VPN
== safi
)
3611 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
3613 vpn_leak_to_vrf_withdraw(bgp
, pi
);
3615 } else if (bgp_debug_update(peer
, p
, NULL
, 1)) {
3616 bgp_debug_rdpfxpath2str(afi
, safi
, prd
, p
, label
, num_labels
,
3617 addpath_id
? 1 : 0, addpath_id
, pfx_buf
,
3619 zlog_debug("%s Can't find the route %s", peer
->host
, pfx_buf
);
3622 /* Unlock bgp_node_get() lock. */
3623 bgp_unlock_node(rn
);
3628 void bgp_default_originate(struct peer
*peer
, afi_t afi
, safi_t safi
,
3631 struct update_subgroup
*subgrp
;
3632 subgrp
= peer_subgroup(peer
, afi
, safi
);
3633 subgroup_default_originate(subgrp
, withdraw
);
3638 * bgp_stop_announce_route_timer
3640 void bgp_stop_announce_route_timer(struct peer_af
*paf
)
3642 if (!paf
->t_announce_route
)
3645 THREAD_TIMER_OFF(paf
->t_announce_route
);
3649 * bgp_announce_route_timer_expired
3651 * Callback that is invoked when the route announcement timer for a
3654 static int bgp_announce_route_timer_expired(struct thread
*t
)
3656 struct peer_af
*paf
;
3659 paf
= THREAD_ARG(t
);
3662 if (peer
->status
!= Established
)
3665 if (!peer
->afc_nego
[paf
->afi
][paf
->safi
])
3668 peer_af_announce_route(paf
, 1);
3673 * bgp_announce_route
3675 * *Triggers* announcement of routes of a given AFI/SAFI to a peer.
3677 void bgp_announce_route(struct peer
*peer
, afi_t afi
, safi_t safi
)
3679 struct peer_af
*paf
;
3680 struct update_subgroup
*subgrp
;
3682 paf
= peer_af_find(peer
, afi
, safi
);
3685 subgrp
= PAF_SUBGRP(paf
);
3688 * Ignore if subgroup doesn't exist (implies AF is not negotiated)
3689 * or a refresh has already been triggered.
3691 if (!subgrp
|| paf
->t_announce_route
)
3695 * Start a timer to stagger/delay the announce. This serves
3696 * two purposes - announcement can potentially be combined for
3697 * multiple peers and the announcement doesn't happen in the
3700 thread_add_timer_msec(bm
->master
, bgp_announce_route_timer_expired
, paf
,
3701 (subgrp
->peer_count
== 1)
3702 ? BGP_ANNOUNCE_ROUTE_SHORT_DELAY_MS
3703 : BGP_ANNOUNCE_ROUTE_DELAY_MS
,
3704 &paf
->t_announce_route
);
3708 * Announce routes from all AF tables to a peer.
3710 * This should ONLY be called when there is a need to refresh the
3711 * routes to the peer based on a policy change for this peer alone
3712 * or a route refresh request received from the peer.
3713 * The operation will result in splitting the peer from its existing
3714 * subgroups and putting it in new subgroups.
3716 void bgp_announce_route_all(struct peer
*peer
)
3721 FOREACH_AFI_SAFI (afi
, safi
)
3722 bgp_announce_route(peer
, afi
, safi
);
3725 static void bgp_soft_reconfig_table(struct peer
*peer
, afi_t afi
, safi_t safi
,
3726 struct bgp_table
*table
,
3727 struct prefix_rd
*prd
)
3730 struct bgp_node
*rn
;
3731 struct bgp_adj_in
*ain
;
3734 table
= peer
->bgp
->rib
[afi
][safi
];
3736 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
))
3737 for (ain
= rn
->adj_in
; ain
; ain
= ain
->next
) {
3738 if (ain
->peer
!= peer
)
3741 struct bgp_path_info
*pi
= rn
->info
;
3742 uint32_t num_labels
= 0;
3743 mpls_label_t
*label_pnt
= NULL
;
3745 if (pi
&& pi
->extra
)
3746 num_labels
= pi
->extra
->num_labels
;
3748 label_pnt
= &pi
->extra
->label
[0];
3750 ret
= bgp_update(peer
, &rn
->p
, ain
->addpath_rx_id
,
3751 ain
->attr
, afi
, safi
, ZEBRA_ROUTE_BGP
,
3752 BGP_ROUTE_NORMAL
, prd
, label_pnt
,
3753 num_labels
, 1, NULL
);
3756 bgp_unlock_node(rn
);
3762 void bgp_soft_reconfig_in(struct peer
*peer
, afi_t afi
, safi_t safi
)
3764 struct bgp_node
*rn
;
3765 struct bgp_table
*table
;
3767 if (peer
->status
!= Established
)
3770 if ((safi
!= SAFI_MPLS_VPN
) && (safi
!= SAFI_ENCAP
)
3771 && (safi
!= SAFI_EVPN
))
3772 bgp_soft_reconfig_table(peer
, afi
, safi
, NULL
, NULL
);
3774 for (rn
= bgp_table_top(peer
->bgp
->rib
[afi
][safi
]); rn
;
3775 rn
= bgp_route_next(rn
))
3776 if ((table
= rn
->info
) != NULL
) {
3777 struct prefix_rd prd
;
3778 prd
.family
= AF_UNSPEC
;
3780 memcpy(&prd
.val
, rn
->p
.u
.val
, 8);
3782 bgp_soft_reconfig_table(peer
, afi
, safi
, table
,
3788 struct bgp_clear_node_queue
{
3789 struct bgp_node
*rn
;
3792 static wq_item_status
bgp_clear_route_node(struct work_queue
*wq
, void *data
)
3794 struct bgp_clear_node_queue
*cnq
= data
;
3795 struct bgp_node
*rn
= cnq
->rn
;
3796 struct peer
*peer
= wq
->spec
.data
;
3797 struct bgp_path_info
*pi
;
3799 afi_t afi
= bgp_node_table(rn
)->afi
;
3800 safi_t safi
= bgp_node_table(rn
)->safi
;
3805 /* It is possible that we have multiple paths for a prefix from a peer
3806 * if that peer is using AddPath.
3808 for (pi
= rn
->info
; pi
; pi
= pi
->next
) {
3809 if (pi
->peer
!= peer
)
3812 /* graceful restart STALE flag set. */
3813 if (CHECK_FLAG(peer
->sflags
, PEER_STATUS_NSF_WAIT
)
3814 && peer
->nsf
[afi
][safi
]
3815 && !CHECK_FLAG(pi
->flags
, BGP_PATH_STALE
)
3816 && !CHECK_FLAG(pi
->flags
, BGP_PATH_UNUSEABLE
))
3817 bgp_path_info_set_flag(rn
, pi
, BGP_PATH_STALE
);
3819 /* If this is an EVPN route, process for
3821 if (safi
== SAFI_EVPN
)
3822 bgp_evpn_unimport_route(bgp
, afi
, safi
, &rn
->p
,
3824 /* Handle withdraw for VRF route-leaking and L3VPN */
3825 if (SAFI_UNICAST
== safi
3826 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
||
3827 bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
3828 vpn_leak_from_vrf_withdraw(bgp_get_default(),
3831 if (SAFI_MPLS_VPN
== safi
&&
3832 bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
) {
3833 vpn_leak_to_vrf_withdraw(bgp
, pi
);
3836 bgp_rib_remove(rn
, pi
, peer
, afi
, safi
);
3842 static void bgp_clear_node_queue_del(struct work_queue
*wq
, void *data
)
3844 struct bgp_clear_node_queue
*cnq
= data
;
3845 struct bgp_node
*rn
= cnq
->rn
;
3846 struct bgp_table
*table
= bgp_node_table(rn
);
3848 bgp_unlock_node(rn
);
3849 bgp_table_unlock(table
);
3850 XFREE(MTYPE_BGP_CLEAR_NODE_QUEUE
, cnq
);
3853 static void bgp_clear_node_complete(struct work_queue
*wq
)
3855 struct peer
*peer
= wq
->spec
.data
;
3857 /* Tickle FSM to start moving again */
3858 BGP_EVENT_ADD(peer
, Clearing_Completed
);
3860 peer_unlock(peer
); /* bgp_clear_route */
3863 static void bgp_clear_node_queue_init(struct peer
*peer
)
3865 char wname
[sizeof("clear xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx")];
3867 snprintf(wname
, sizeof(wname
), "clear %s", peer
->host
);
3868 #undef CLEAR_QUEUE_NAME_LEN
3870 peer
->clear_node_queue
= work_queue_new(bm
->master
, wname
);
3871 peer
->clear_node_queue
->spec
.hold
= 10;
3872 peer
->clear_node_queue
->spec
.workfunc
= &bgp_clear_route_node
;
3873 peer
->clear_node_queue
->spec
.del_item_data
= &bgp_clear_node_queue_del
;
3874 peer
->clear_node_queue
->spec
.completion_func
= &bgp_clear_node_complete
;
3875 peer
->clear_node_queue
->spec
.max_retries
= 0;
3877 /* we only 'lock' this peer reference when the queue is actually active
3879 peer
->clear_node_queue
->spec
.data
= peer
;
3882 static void bgp_clear_route_table(struct peer
*peer
, afi_t afi
, safi_t safi
,
3883 struct bgp_table
*table
)
3885 struct bgp_node
*rn
;
3886 int force
= bm
->process_main_queue
? 0 : 1;
3889 table
= peer
->bgp
->rib
[afi
][safi
];
3891 /* If still no table => afi/safi isn't configured at all or smth. */
3895 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
)) {
3896 struct bgp_path_info
*pi
, *next
;
3897 struct bgp_adj_in
*ain
;
3898 struct bgp_adj_in
*ain_next
;
3900 /* XXX:TODO: This is suboptimal, every non-empty route_node is
3901 * queued for every clearing peer, regardless of whether it is
3902 * relevant to the peer at hand.
3904 * Overview: There are 3 different indices which need to be
3905 * scrubbed, potentially, when a peer is removed:
3907 * 1 peer's routes visible via the RIB (ie accepted routes)
3908 * 2 peer's routes visible by the (optional) peer's adj-in index
3909 * 3 other routes visible by the peer's adj-out index
3911 * 3 there is no hurry in scrubbing, once the struct peer is
3912 * removed from bgp->peer, we could just GC such deleted peer's
3913 * adj-outs at our leisure.
3915 * 1 and 2 must be 'scrubbed' in some way, at least made
3916 * invisible via RIB index before peer session is allowed to be
3917 * brought back up. So one needs to know when such a 'search' is
3922 * - there'd be a single global queue or a single RIB walker
3923 * - rather than tracking which route_nodes still need to be
3924 * examined on a peer basis, we'd track which peers still
3927 * Given that our per-peer prefix-counts now should be reliable,
3928 * this may actually be achievable. It doesn't seem to be a huge
3929 * problem at this time,
3931 * It is possible that we have multiple paths for a prefix from
3933 * if that peer is using AddPath.
3937 ain_next
= ain
->next
;
3939 if (ain
->peer
== peer
) {
3940 bgp_adj_in_remove(rn
, ain
);
3941 bgp_unlock_node(rn
);
3947 for (pi
= rn
->info
; pi
; pi
= next
) {
3949 if (pi
->peer
!= peer
)
3953 bgp_path_info_reap(rn
, pi
);
3955 struct bgp_clear_node_queue
*cnq
;
3957 /* both unlocked in bgp_clear_node_queue_del */
3958 bgp_table_lock(bgp_node_table(rn
));
3961 MTYPE_BGP_CLEAR_NODE_QUEUE
,
3962 sizeof(struct bgp_clear_node_queue
));
3964 work_queue_add(peer
->clear_node_queue
, cnq
);
3972 void bgp_clear_route(struct peer
*peer
, afi_t afi
, safi_t safi
)
3974 struct bgp_node
*rn
;
3975 struct bgp_table
*table
;
3977 if (peer
->clear_node_queue
== NULL
)
3978 bgp_clear_node_queue_init(peer
);
3980 /* bgp_fsm.c keeps sessions in state Clearing, not transitioning to
3981 * Idle until it receives a Clearing_Completed event. This protects
3982 * against peers which flap faster than we can we clear, which could
3985 * a) race with routes from the new session being installed before
3986 * clear_route_node visits the node (to delete the route of that
3988 * b) resource exhaustion, clear_route_node likely leads to an entry
3989 * on the process_main queue. Fast-flapping could cause that queue
3993 /* lock peer in assumption that clear-node-queue will get nodes; if so,
3994 * the unlock will happen upon work-queue completion; other wise, the
3995 * unlock happens at the end of this function.
3997 if (!peer
->clear_node_queue
->thread
)
4000 if (safi
!= SAFI_MPLS_VPN
&& safi
!= SAFI_ENCAP
&& safi
!= SAFI_EVPN
)
4001 bgp_clear_route_table(peer
, afi
, safi
, NULL
);
4003 for (rn
= bgp_table_top(peer
->bgp
->rib
[afi
][safi
]); rn
;
4004 rn
= bgp_route_next(rn
))
4005 if ((table
= rn
->info
) != NULL
)
4006 bgp_clear_route_table(peer
, afi
, safi
, table
);
4008 /* unlock if no nodes got added to the clear-node-queue. */
4009 if (!peer
->clear_node_queue
->thread
)
4013 void bgp_clear_route_all(struct peer
*peer
)
4018 FOREACH_AFI_SAFI (afi
, safi
)
4019 bgp_clear_route(peer
, afi
, safi
);
4022 rfapiProcessPeerDown(peer
);
4026 void bgp_clear_adj_in(struct peer
*peer
, afi_t afi
, safi_t safi
)
4028 struct bgp_table
*table
;
4029 struct bgp_node
*rn
;
4030 struct bgp_adj_in
*ain
;
4031 struct bgp_adj_in
*ain_next
;
4033 table
= peer
->bgp
->rib
[afi
][safi
];
4035 /* It is possible that we have multiple paths for a prefix from a peer
4036 * if that peer is using AddPath.
4038 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
)) {
4042 ain_next
= ain
->next
;
4044 if (ain
->peer
== peer
) {
4045 bgp_adj_in_remove(rn
, ain
);
4046 bgp_unlock_node(rn
);
4054 void bgp_clear_stale_route(struct peer
*peer
, afi_t afi
, safi_t safi
)
4056 struct bgp_node
*rn
;
4057 struct bgp_path_info
*pi
;
4058 struct bgp_table
*table
;
4060 if (safi
== SAFI_MPLS_VPN
) {
4061 for (rn
= bgp_table_top(peer
->bgp
->rib
[afi
][safi
]); rn
;
4062 rn
= bgp_route_next(rn
)) {
4063 struct bgp_node
*rm
;
4065 /* look for neighbor in tables */
4066 if ((table
= rn
->info
) == NULL
)
4069 for (rm
= bgp_table_top(table
); rm
;
4070 rm
= bgp_route_next(rm
))
4071 for (pi
= rm
->info
; pi
; pi
= pi
->next
) {
4072 if (pi
->peer
!= peer
)
4074 if (!CHECK_FLAG(pi
->flags
,
4078 bgp_rib_remove(rm
, pi
, peer
, afi
, safi
);
4083 for (rn
= bgp_table_top(peer
->bgp
->rib
[afi
][safi
]); rn
;
4084 rn
= bgp_route_next(rn
))
4085 for (pi
= rn
->info
; pi
; pi
= pi
->next
) {
4086 if (pi
->peer
!= peer
)
4088 if (!CHECK_FLAG(pi
->flags
, BGP_PATH_STALE
))
4090 bgp_rib_remove(rn
, pi
, peer
, afi
, safi
);
4096 static void bgp_cleanup_table(struct bgp
*bgp
, struct bgp_table
*table
,
4099 struct bgp_node
*rn
;
4100 struct bgp_path_info
*pi
;
4101 struct bgp_path_info
*next
;
4103 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
))
4104 for (pi
= rn
->info
; pi
; pi
= next
) {
4106 if (CHECK_FLAG(pi
->flags
, BGP_PATH_SELECTED
)
4107 && pi
->type
== ZEBRA_ROUTE_BGP
4108 && (pi
->sub_type
== BGP_ROUTE_NORMAL
4109 || pi
->sub_type
== BGP_ROUTE_AGGREGATE
4110 || pi
->sub_type
== BGP_ROUTE_IMPORTED
)) {
4112 if (bgp_fibupd_safi(safi
))
4113 bgp_zebra_withdraw(&rn
->p
, pi
, bgp
,
4115 bgp_path_info_reap(rn
, pi
);
4120 /* Delete all kernel routes. */
4121 void bgp_cleanup_routes(struct bgp
*bgp
)
4124 struct bgp_node
*rn
;
4126 for (afi
= AFI_IP
; afi
< AFI_MAX
; ++afi
) {
4127 if (afi
== AFI_L2VPN
)
4129 bgp_cleanup_table(bgp
, bgp
->rib
[afi
][SAFI_UNICAST
],
4132 * VPN and ENCAP and EVPN tables are two-level (RD is top level)
4134 if (afi
!= AFI_L2VPN
) {
4136 safi
= SAFI_MPLS_VPN
;
4137 for (rn
= bgp_table_top(bgp
->rib
[afi
][safi
]); rn
;
4138 rn
= bgp_route_next(rn
)) {
4140 bgp_cleanup_table(bgp
,
4141 (struct bgp_table
*)(rn
->info
),
4143 bgp_table_finish((struct bgp_table
**)&(
4146 bgp_unlock_node(rn
);
4150 for (rn
= bgp_table_top(bgp
->rib
[afi
][safi
]); rn
;
4151 rn
= bgp_route_next(rn
)) {
4153 bgp_cleanup_table(bgp
,
4154 (struct bgp_table
*)(rn
->info
),
4156 bgp_table_finish((struct bgp_table
**)&(
4159 bgp_unlock_node(rn
);
4164 for (rn
= bgp_table_top(bgp
->rib
[AFI_L2VPN
][SAFI_EVPN
]); rn
;
4165 rn
= bgp_route_next(rn
)) {
4167 bgp_cleanup_table(bgp
,
4168 (struct bgp_table
*)(rn
->info
),
4170 bgp_table_finish((struct bgp_table
**)&(rn
->info
));
4172 bgp_unlock_node(rn
);
4177 void bgp_reset(void)
4180 bgp_zclient_reset();
4181 access_list_reset();
4182 prefix_list_reset();
4185 static int bgp_addpath_encode_rx(struct peer
*peer
, afi_t afi
, safi_t safi
)
4187 return (CHECK_FLAG(peer
->af_cap
[afi
][safi
], PEER_CAP_ADDPATH_AF_RX_ADV
)
4188 && CHECK_FLAG(peer
->af_cap
[afi
][safi
],
4189 PEER_CAP_ADDPATH_AF_TX_RCV
));
4192 /* Parse NLRI stream. Withdraw NLRI is recognized by NULL attr
4194 int bgp_nlri_parse_ip(struct peer
*peer
, struct attr
*attr
,
4195 struct bgp_nlri
*packet
)
4204 int addpath_encoded
;
4205 uint32_t addpath_id
;
4208 lim
= pnt
+ packet
->length
;
4210 safi
= packet
->safi
;
4212 addpath_encoded
= bgp_addpath_encode_rx(peer
, afi
, safi
);
4214 /* RFC4771 6.3 The NLRI field in the UPDATE message is checked for
4215 syntactic validity. If the field is syntactically incorrect,
4216 then the Error Subcode is set to Invalid Network Field. */
4217 for (; pnt
< lim
; pnt
+= psize
) {
4218 /* Clear prefix structure. */
4219 memset(&p
, 0, sizeof(struct prefix
));
4221 if (addpath_encoded
) {
4223 /* When packet overflow occurs return immediately. */
4224 if (pnt
+ BGP_ADDPATH_ID_LEN
> lim
)
4227 addpath_id
= ntohl(*((uint32_t *)pnt
));
4228 pnt
+= BGP_ADDPATH_ID_LEN
;
4231 /* Fetch prefix length. */
4232 p
.prefixlen
= *pnt
++;
4233 /* afi/safi validity already verified by caller,
4234 * bgp_update_receive */
4235 p
.family
= afi2family(afi
);
4237 /* Prefix length check. */
4238 if (p
.prefixlen
> prefix_blen(&p
) * 8) {
4241 "%s [Error] Update packet error (wrong prefix length %d for afi %u)",
4242 peer
->host
, p
.prefixlen
, packet
->afi
);
4246 /* Packet size overflow check. */
4247 psize
= PSIZE(p
.prefixlen
);
4249 /* When packet overflow occur return immediately. */
4250 if (pnt
+ psize
> lim
) {
4253 "%s [Error] Update packet error (prefix length %d overflows packet)",
4254 peer
->host
, p
.prefixlen
);
4258 /* Defensive coding, double-check the psize fits in a struct
4260 if (psize
> (ssize_t
)sizeof(p
.u
)) {
4263 "%s [Error] Update packet error (prefix length %d too large for prefix storage %zu)",
4264 peer
->host
, p
.prefixlen
, sizeof(p
.u
));
4268 /* Fetch prefix from NLRI packet. */
4269 memcpy(p
.u
.val
, pnt
, psize
);
4271 /* Check address. */
4272 if (afi
== AFI_IP
&& safi
== SAFI_UNICAST
) {
4273 if (IN_CLASSD(ntohl(p
.u
.prefix4
.s_addr
))) {
4274 /* From RFC4271 Section 6.3:
4276 * If a prefix in the NLRI field is semantically
4278 * (e.g., an unexpected multicast IP address),
4280 * be logged locally, and the prefix SHOULD be
4285 "%s: IPv4 unicast NLRI is multicast address %s, ignoring",
4286 peer
->host
, inet_ntoa(p
.u
.prefix4
));
4291 /* Check address. */
4292 if (afi
== AFI_IP6
&& safi
== SAFI_UNICAST
) {
4293 if (IN6_IS_ADDR_LINKLOCAL(&p
.u
.prefix6
)) {
4298 "%s: IPv6 unicast NLRI is link-local address %s, ignoring",
4300 inet_ntop(AF_INET6
, &p
.u
.prefix6
, buf
,
4305 if (IN6_IS_ADDR_MULTICAST(&p
.u
.prefix6
)) {
4310 "%s: IPv6 unicast NLRI is multicast address %s, ignoring",
4312 inet_ntop(AF_INET6
, &p
.u
.prefix6
, buf
,
4319 /* Normal process. */
4321 ret
= bgp_update(peer
, &p
, addpath_id
, attr
, afi
, safi
,
4322 ZEBRA_ROUTE_BGP
, BGP_ROUTE_NORMAL
,
4323 NULL
, NULL
, 0, 0, NULL
);
4325 ret
= bgp_withdraw(peer
, &p
, addpath_id
, attr
, afi
,
4326 safi
, ZEBRA_ROUTE_BGP
,
4327 BGP_ROUTE_NORMAL
, NULL
, NULL
, 0,
4330 /* Address family configuration mismatch or maximum-prefix count
4336 /* Packet length consistency check. */
4340 "%s [Error] Update packet error (prefix length mismatch with total length)",
4348 static struct bgp_static
*bgp_static_new(void)
4350 return XCALLOC(MTYPE_BGP_STATIC
, sizeof(struct bgp_static
));
4353 static void bgp_static_free(struct bgp_static
*bgp_static
)
4355 if (bgp_static
->rmap
.name
)
4356 XFREE(MTYPE_ROUTE_MAP_NAME
, bgp_static
->rmap
.name
);
4357 if (bgp_static
->eth_s_id
)
4358 XFREE(MTYPE_ATTR
, bgp_static
->eth_s_id
);
4359 XFREE(MTYPE_BGP_STATIC
, bgp_static
);
4362 void bgp_static_update(struct bgp
*bgp
, struct prefix
*p
,
4363 struct bgp_static
*bgp_static
, afi_t afi
, safi_t safi
)
4365 struct bgp_node
*rn
;
4366 struct bgp_path_info
*pi
;
4367 struct bgp_path_info
*new;
4368 struct bgp_path_info rmap_path
;
4370 struct attr
*attr_new
;
4373 int vnc_implicit_withdraw
= 0;
4380 rn
= bgp_afi_node_get(bgp
->rib
[afi
][safi
], afi
, safi
, p
, NULL
);
4382 bgp_attr_default_set(&attr
, BGP_ORIGIN_IGP
);
4384 attr
.nexthop
= bgp_static
->igpnexthop
;
4385 attr
.med
= bgp_static
->igpmetric
;
4386 attr
.flag
|= ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
);
4388 if (bgp_static
->atomic
)
4389 attr
.flag
|= ATTR_FLAG_BIT(BGP_ATTR_ATOMIC_AGGREGATE
);
4391 /* Store label index, if required. */
4392 if (bgp_static
->label_index
!= BGP_INVALID_LABEL_INDEX
) {
4393 attr
.label_index
= bgp_static
->label_index
;
4394 attr
.flag
|= ATTR_FLAG_BIT(BGP_ATTR_PREFIX_SID
);
4397 /* Apply route-map. */
4398 if (bgp_static
->rmap
.name
) {
4399 struct attr attr_tmp
= attr
;
4401 memset(&rmap_path
, 0, sizeof(struct bgp_path_info
));
4402 rmap_path
.peer
= bgp
->peer_self
;
4403 rmap_path
.attr
= &attr_tmp
;
4405 SET_FLAG(bgp
->peer_self
->rmap_type
, PEER_RMAP_TYPE_NETWORK
);
4407 ret
= route_map_apply(bgp_static
->rmap
.map
, p
, RMAP_BGP
,
4410 bgp
->peer_self
->rmap_type
= 0;
4412 if (ret
== RMAP_DENYMATCH
) {
4413 /* Free uninterned attribute. */
4414 bgp_attr_flush(&attr_tmp
);
4416 /* Unintern original. */
4417 aspath_unintern(&attr
.aspath
);
4418 bgp_static_withdraw(bgp
, p
, afi
, safi
);
4422 if (bgp_flag_check(bgp
, BGP_FLAG_GRACEFUL_SHUTDOWN
))
4423 bgp_attr_add_gshut_community(&attr_tmp
);
4425 attr_new
= bgp_attr_intern(&attr_tmp
);
4428 if (bgp_flag_check(bgp
, BGP_FLAG_GRACEFUL_SHUTDOWN
))
4429 bgp_attr_add_gshut_community(&attr
);
4431 attr_new
= bgp_attr_intern(&attr
);
4434 for (pi
= rn
->info
; pi
; pi
= pi
->next
)
4435 if (pi
->peer
== bgp
->peer_self
&& pi
->type
== ZEBRA_ROUTE_BGP
4436 && pi
->sub_type
== BGP_ROUTE_STATIC
)
4440 if (attrhash_cmp(pi
->attr
, attr_new
)
4441 && !CHECK_FLAG(pi
->flags
, BGP_PATH_REMOVED
)
4442 && !bgp_flag_check(bgp
, BGP_FLAG_FORCE_STATIC_PROCESS
)) {
4443 bgp_unlock_node(rn
);
4444 bgp_attr_unintern(&attr_new
);
4445 aspath_unintern(&attr
.aspath
);
4448 /* The attribute is changed. */
4449 bgp_path_info_set_flag(rn
, pi
, BGP_PATH_ATTR_CHANGED
);
4451 /* Rewrite BGP route information. */
4452 if (CHECK_FLAG(pi
->flags
, BGP_PATH_REMOVED
))
4453 bgp_path_info_restore(rn
, pi
);
4455 bgp_aggregate_decrement(bgp
, p
, pi
, afi
, safi
);
4457 if ((afi
== AFI_IP
|| afi
== AFI_IP6
)
4458 && (safi
== SAFI_UNICAST
)) {
4459 if (CHECK_FLAG(pi
->flags
, BGP_PATH_SELECTED
)) {
4461 * Implicit withdraw case.
4462 * We have to do this before pi is
4465 ++vnc_implicit_withdraw
;
4466 vnc_import_bgp_del_route(bgp
, p
, pi
);
4467 vnc_import_bgp_exterior_del_route(
4472 bgp_attr_unintern(&pi
->attr
);
4473 pi
->attr
= attr_new
;
4474 pi
->uptime
= bgp_clock();
4476 if ((afi
== AFI_IP
|| afi
== AFI_IP6
)
4477 && (safi
== SAFI_UNICAST
)) {
4478 if (vnc_implicit_withdraw
) {
4479 vnc_import_bgp_add_route(bgp
, p
, pi
);
4480 vnc_import_bgp_exterior_add_route(
4486 /* Nexthop reachability check. */
4487 if (bgp_flag_check(bgp
, BGP_FLAG_IMPORT_CHECK
)
4488 && (safi
== SAFI_UNICAST
4489 || safi
== SAFI_LABELED_UNICAST
)) {
4491 struct bgp
*bgp_nexthop
= bgp
;
4493 if (pi
->extra
&& pi
->extra
->bgp_orig
)
4494 bgp_nexthop
= pi
->extra
->bgp_orig
;
4496 if (bgp_find_or_add_nexthop(bgp
, bgp_nexthop
,
4498 bgp_path_info_set_flag(rn
, pi
,
4501 if (BGP_DEBUG(nht
, NHT
)) {
4502 char buf1
[INET6_ADDRSTRLEN
];
4503 inet_ntop(p
->family
,
4507 "%s(%s): Route not in table, not advertising",
4508 __FUNCTION__
, buf1
);
4510 bgp_path_info_unset_flag(
4511 rn
, pi
, BGP_PATH_VALID
);
4514 /* Delete the NHT structure if any, if we're
4516 * enabling/disabling import check. We
4517 * deregister the route
4518 * from NHT to avoid overloading NHT and the
4519 * process interaction
4521 bgp_unlink_nexthop(pi
);
4522 bgp_path_info_set_flag(rn
, pi
, BGP_PATH_VALID
);
4524 /* Process change. */
4525 bgp_aggregate_increment(bgp
, p
, pi
, afi
, safi
);
4526 bgp_process(bgp
, rn
, afi
, safi
);
4528 if (SAFI_UNICAST
== safi
4529 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
4531 == BGP_INSTANCE_TYPE_DEFAULT
)) {
4532 vpn_leak_from_vrf_update(bgp_get_default(), bgp
,
4536 bgp_unlock_node(rn
);
4537 aspath_unintern(&attr
.aspath
);
4542 /* Make new BGP info. */
4543 new = info_make(ZEBRA_ROUTE_BGP
, BGP_ROUTE_STATIC
, 0, bgp
->peer_self
,
4545 /* Nexthop reachability check. */
4546 if (bgp_flag_check(bgp
, BGP_FLAG_IMPORT_CHECK
)
4547 && (safi
== SAFI_UNICAST
|| safi
== SAFI_LABELED_UNICAST
)) {
4548 if (bgp_find_or_add_nexthop(bgp
, bgp
, afi
, new, NULL
, 0))
4549 bgp_path_info_set_flag(rn
, new, BGP_PATH_VALID
);
4551 if (BGP_DEBUG(nht
, NHT
)) {
4552 char buf1
[INET6_ADDRSTRLEN
];
4553 inet_ntop(p
->family
, &p
->u
.prefix
, buf1
,
4556 "%s(%s): Route not in table, not advertising",
4557 __FUNCTION__
, buf1
);
4559 bgp_path_info_unset_flag(rn
, new, BGP_PATH_VALID
);
4562 /* Delete the NHT structure if any, if we're toggling between
4563 * enabling/disabling import check. We deregister the route
4564 * from NHT to avoid overloading NHT and the process interaction
4566 bgp_unlink_nexthop(new);
4568 bgp_path_info_set_flag(rn
, new, BGP_PATH_VALID
);
4571 /* Aggregate address increment. */
4572 bgp_aggregate_increment(bgp
, p
, new, afi
, safi
);
4574 /* Register new BGP information. */
4575 bgp_path_info_add(rn
, new);
4577 /* route_node_get lock */
4578 bgp_unlock_node(rn
);
4580 /* Process change. */
4581 bgp_process(bgp
, rn
, afi
, safi
);
4583 if (SAFI_UNICAST
== safi
4584 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
4585 || bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
4586 vpn_leak_from_vrf_update(bgp_get_default(), bgp
, new);
4589 /* Unintern original. */
4590 aspath_unintern(&attr
.aspath
);
4593 void bgp_static_withdraw(struct bgp
*bgp
, struct prefix
*p
, afi_t afi
,
4596 struct bgp_node
*rn
;
4597 struct bgp_path_info
*pi
;
4599 rn
= bgp_afi_node_get(bgp
->rib
[afi
][safi
], afi
, safi
, p
, NULL
);
4601 /* Check selected route and self inserted route. */
4602 for (pi
= rn
->info
; pi
; pi
= pi
->next
)
4603 if (pi
->peer
== bgp
->peer_self
&& pi
->type
== ZEBRA_ROUTE_BGP
4604 && pi
->sub_type
== BGP_ROUTE_STATIC
)
4607 /* Withdraw static BGP route from routing table. */
4609 if (SAFI_UNICAST
== safi
4610 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
4611 || bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
4612 vpn_leak_from_vrf_withdraw(bgp_get_default(), bgp
, pi
);
4614 bgp_aggregate_decrement(bgp
, p
, pi
, afi
, safi
);
4615 bgp_unlink_nexthop(pi
);
4616 bgp_path_info_delete(rn
, pi
);
4617 bgp_process(bgp
, rn
, afi
, safi
);
4620 /* Unlock bgp_node_lookup. */
4621 bgp_unlock_node(rn
);
4625 * Used for SAFI_MPLS_VPN and SAFI_ENCAP
4627 static void bgp_static_withdraw_safi(struct bgp
*bgp
, struct prefix
*p
,
4628 afi_t afi
, safi_t safi
,
4629 struct prefix_rd
*prd
)
4631 struct bgp_node
*rn
;
4632 struct bgp_path_info
*pi
;
4634 rn
= bgp_afi_node_get(bgp
->rib
[afi
][safi
], afi
, safi
, p
, prd
);
4636 /* Check selected route and self inserted route. */
4637 for (pi
= rn
->info
; pi
; pi
= pi
->next
)
4638 if (pi
->peer
== bgp
->peer_self
&& pi
->type
== ZEBRA_ROUTE_BGP
4639 && pi
->sub_type
== BGP_ROUTE_STATIC
)
4642 /* Withdraw static BGP route from routing table. */
4645 rfapiProcessWithdraw(
4646 pi
->peer
, NULL
, p
, prd
, pi
->attr
, afi
, safi
, pi
->type
,
4647 1); /* Kill, since it is an administrative change */
4649 if (SAFI_MPLS_VPN
== safi
4650 && bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
) {
4651 vpn_leak_to_vrf_withdraw(bgp
, pi
);
4653 bgp_aggregate_decrement(bgp
, p
, pi
, afi
, safi
);
4654 bgp_path_info_delete(rn
, pi
);
4655 bgp_process(bgp
, rn
, afi
, safi
);
4658 /* Unlock bgp_node_lookup. */
4659 bgp_unlock_node(rn
);
4662 static void bgp_static_update_safi(struct bgp
*bgp
, struct prefix
*p
,
4663 struct bgp_static
*bgp_static
, afi_t afi
,
4666 struct bgp_node
*rn
;
4667 struct bgp_path_info
*new;
4668 struct attr
*attr_new
;
4669 struct attr attr
= {0};
4670 struct bgp_path_info
*pi
;
4672 mpls_label_t label
= 0;
4674 uint32_t num_labels
= 0;
4679 if (bgp_static
->label
!= MPLS_INVALID_LABEL
)
4681 rn
= bgp_afi_node_get(bgp
->rib
[afi
][safi
], afi
, safi
, p
,
4684 bgp_attr_default_set(&attr
, BGP_ORIGIN_IGP
);
4686 attr
.nexthop
= bgp_static
->igpnexthop
;
4687 attr
.med
= bgp_static
->igpmetric
;
4688 attr
.flag
|= ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
);
4690 if ((safi
== SAFI_EVPN
) || (safi
== SAFI_MPLS_VPN
)
4691 || (safi
== SAFI_ENCAP
)) {
4692 if (afi
== AFI_IP
) {
4693 attr
.mp_nexthop_global_in
= bgp_static
->igpnexthop
;
4694 attr
.mp_nexthop_len
= IPV4_MAX_BYTELEN
;
4697 if (afi
== AFI_L2VPN
) {
4698 if (bgp_static
->gatewayIp
.family
== AF_INET
)
4700 bgp_static
->gatewayIp
.u
.prefix4
.s_addr
;
4701 else if (bgp_static
->gatewayIp
.family
== AF_INET6
)
4702 memcpy(&(add
.ipv6
), &(bgp_static
->gatewayIp
.u
.prefix6
),
4703 sizeof(struct in6_addr
));
4704 overlay_index_update(&attr
, bgp_static
->eth_s_id
, &add
);
4705 if (bgp_static
->encap_tunneltype
== BGP_ENCAP_TYPE_VXLAN
) {
4706 struct bgp_encap_type_vxlan bet
;
4707 memset(&bet
, 0, sizeof(struct bgp_encap_type_vxlan
));
4708 bet
.vnid
= p
->u
.prefix_evpn
.prefix_addr
.eth_tag
;
4709 bgp_encap_type_vxlan_to_tlv(&bet
, &attr
);
4711 if (bgp_static
->router_mac
) {
4712 bgp_add_routermac_ecom(&attr
, bgp_static
->router_mac
);
4715 /* Apply route-map. */
4716 if (bgp_static
->rmap
.name
) {
4717 struct attr attr_tmp
= attr
;
4718 struct bgp_path_info rmap_path
;
4721 rmap_path
.peer
= bgp
->peer_self
;
4722 rmap_path
.attr
= &attr_tmp
;
4724 SET_FLAG(bgp
->peer_self
->rmap_type
, PEER_RMAP_TYPE_NETWORK
);
4726 ret
= route_map_apply(bgp_static
->rmap
.map
, p
, RMAP_BGP
,
4729 bgp
->peer_self
->rmap_type
= 0;
4731 if (ret
== RMAP_DENYMATCH
) {
4732 /* Free uninterned attribute. */
4733 bgp_attr_flush(&attr_tmp
);
4735 /* Unintern original. */
4736 aspath_unintern(&attr
.aspath
);
4737 bgp_static_withdraw_safi(bgp
, p
, afi
, safi
,
4742 attr_new
= bgp_attr_intern(&attr_tmp
);
4744 attr_new
= bgp_attr_intern(&attr
);
4747 for (pi
= rn
->info
; pi
; pi
= pi
->next
)
4748 if (pi
->peer
== bgp
->peer_self
&& pi
->type
== ZEBRA_ROUTE_BGP
4749 && pi
->sub_type
== BGP_ROUTE_STATIC
)
4753 memset(&add
, 0, sizeof(union gw_addr
));
4754 if (attrhash_cmp(pi
->attr
, attr_new
)
4755 && overlay_index_equal(afi
, pi
, bgp_static
->eth_s_id
, &add
)
4756 && !CHECK_FLAG(pi
->flags
, BGP_PATH_REMOVED
)) {
4757 bgp_unlock_node(rn
);
4758 bgp_attr_unintern(&attr_new
);
4759 aspath_unintern(&attr
.aspath
);
4762 /* The attribute is changed. */
4763 bgp_path_info_set_flag(rn
, pi
, BGP_PATH_ATTR_CHANGED
);
4765 /* Rewrite BGP route information. */
4766 if (CHECK_FLAG(pi
->flags
, BGP_PATH_REMOVED
))
4767 bgp_path_info_restore(rn
, pi
);
4769 bgp_aggregate_decrement(bgp
, p
, pi
, afi
, safi
);
4770 bgp_attr_unintern(&pi
->attr
);
4771 pi
->attr
= attr_new
;
4772 pi
->uptime
= bgp_clock();
4775 label
= decode_label(&pi
->extra
->label
[0]);
4778 /* Process change. */
4779 bgp_aggregate_increment(bgp
, p
, pi
, afi
, safi
);
4780 bgp_process(bgp
, rn
, afi
, safi
);
4782 if (SAFI_MPLS_VPN
== safi
4783 && bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
) {
4784 vpn_leak_to_vrf_update(bgp
, pi
);
4787 rfapiProcessUpdate(pi
->peer
, NULL
, p
, &bgp_static
->prd
,
4788 pi
->attr
, afi
, safi
, pi
->type
,
4789 pi
->sub_type
, &label
);
4791 bgp_unlock_node(rn
);
4792 aspath_unintern(&attr
.aspath
);
4798 /* Make new BGP info. */
4799 new = info_make(ZEBRA_ROUTE_BGP
, BGP_ROUTE_STATIC
, 0, bgp
->peer_self
,
4801 SET_FLAG(new->flags
, BGP_PATH_VALID
);
4802 new->extra
= bgp_path_info_extra_new();
4804 new->extra
->label
[0] = bgp_static
->label
;
4805 new->extra
->num_labels
= num_labels
;
4808 label
= decode_label(&bgp_static
->label
);
4811 /* Aggregate address increment. */
4812 bgp_aggregate_increment(bgp
, p
, new, afi
, safi
);
4814 /* Register new BGP information. */
4815 bgp_path_info_add(rn
, new);
4816 /* route_node_get lock */
4817 bgp_unlock_node(rn
);
4819 /* Process change. */
4820 bgp_process(bgp
, rn
, afi
, safi
);
4822 if (SAFI_MPLS_VPN
== safi
4823 && bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
) {
4824 vpn_leak_to_vrf_update(bgp
, new);
4827 rfapiProcessUpdate(new->peer
, NULL
, p
, &bgp_static
->prd
, new->attr
, afi
,
4828 safi
, new->type
, new->sub_type
, &label
);
4831 /* Unintern original. */
4832 aspath_unintern(&attr
.aspath
);
4835 /* Configure static BGP network. When user don't run zebra, static
4836 route should be installed as valid. */
4837 static int bgp_static_set(struct vty
*vty
, const char *negate
,
4838 const char *ip_str
, afi_t afi
, safi_t safi
,
4839 const char *rmap
, int backdoor
, uint32_t label_index
)
4841 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
4844 struct bgp_static
*bgp_static
;
4845 struct bgp_node
*rn
;
4846 uint8_t need_update
= 0;
4848 /* Convert IP prefix string to struct prefix. */
4849 ret
= str2prefix(ip_str
, &p
);
4851 vty_out(vty
, "%% Malformed prefix\n");
4852 return CMD_WARNING_CONFIG_FAILED
;
4854 if (afi
== AFI_IP6
&& IN6_IS_ADDR_LINKLOCAL(&p
.u
.prefix6
)) {
4855 vty_out(vty
, "%% Malformed prefix (link-local address)\n");
4856 return CMD_WARNING_CONFIG_FAILED
;
4863 /* Set BGP static route configuration. */
4864 rn
= bgp_node_lookup(bgp
->route
[afi
][safi
], &p
);
4867 vty_out(vty
, "%% Can't find static route specified\n");
4868 return CMD_WARNING_CONFIG_FAILED
;
4871 bgp_static
= bgp_static_get_node_info(rn
);
4873 if ((label_index
!= BGP_INVALID_LABEL_INDEX
)
4874 && (label_index
!= bgp_static
->label_index
)) {
4876 "%% label-index doesn't match static route\n");
4877 return CMD_WARNING_CONFIG_FAILED
;
4880 if ((rmap
&& bgp_static
->rmap
.name
)
4881 && strcmp(rmap
, bgp_static
->rmap
.name
)) {
4883 "%% route-map name doesn't match static route\n");
4884 return CMD_WARNING_CONFIG_FAILED
;
4887 /* Update BGP RIB. */
4888 if (!bgp_static
->backdoor
)
4889 bgp_static_withdraw(bgp
, &p
, afi
, safi
);
4891 /* Clear configuration. */
4892 bgp_static_free(bgp_static
);
4893 bgp_static_set_node_info(rn
, NULL
);
4894 bgp_unlock_node(rn
);
4895 bgp_unlock_node(rn
);
4898 /* Set BGP static route configuration. */
4899 rn
= bgp_node_get(bgp
->route
[afi
][safi
], &p
);
4901 bgp_static
= bgp_static_get_node_info(rn
);
4903 /* Configuration change. */
4904 /* Label index cannot be changed. */
4905 if (bgp_static
->label_index
!= label_index
) {
4906 vty_out(vty
, "%% cannot change label-index\n");
4907 return CMD_WARNING_CONFIG_FAILED
;
4910 /* Check previous routes are installed into BGP. */
4911 if (bgp_static
->valid
4912 && bgp_static
->backdoor
!= backdoor
)
4915 bgp_static
->backdoor
= backdoor
;
4918 if (bgp_static
->rmap
.name
)
4919 XFREE(MTYPE_ROUTE_MAP_NAME
,
4920 bgp_static
->rmap
.name
);
4921 bgp_static
->rmap
.name
=
4922 XSTRDUP(MTYPE_ROUTE_MAP_NAME
, rmap
);
4923 bgp_static
->rmap
.map
=
4924 route_map_lookup_by_name(rmap
);
4926 if (bgp_static
->rmap
.name
)
4927 XFREE(MTYPE_ROUTE_MAP_NAME
,
4928 bgp_static
->rmap
.name
);
4929 bgp_static
->rmap
.name
= NULL
;
4930 bgp_static
->rmap
.map
= NULL
;
4931 bgp_static
->valid
= 0;
4933 bgp_unlock_node(rn
);
4935 /* New configuration. */
4936 bgp_static
= bgp_static_new();
4937 bgp_static
->backdoor
= backdoor
;
4938 bgp_static
->valid
= 0;
4939 bgp_static
->igpmetric
= 0;
4940 bgp_static
->igpnexthop
.s_addr
= 0;
4941 bgp_static
->label_index
= label_index
;
4944 if (bgp_static
->rmap
.name
)
4945 XFREE(MTYPE_ROUTE_MAP_NAME
,
4946 bgp_static
->rmap
.name
);
4947 bgp_static
->rmap
.name
=
4948 XSTRDUP(MTYPE_ROUTE_MAP_NAME
, rmap
);
4949 bgp_static
->rmap
.map
=
4950 route_map_lookup_by_name(rmap
);
4952 bgp_static_set_node_info(rn
, bgp_static
);
4955 bgp_static
->valid
= 1;
4957 bgp_static_withdraw(bgp
, &p
, afi
, safi
);
4959 if (!bgp_static
->backdoor
)
4960 bgp_static_update(bgp
, &p
, bgp_static
, afi
, safi
);
4966 void bgp_static_add(struct bgp
*bgp
)
4970 struct bgp_node
*rn
;
4971 struct bgp_node
*rm
;
4972 struct bgp_table
*table
;
4973 struct bgp_static
*bgp_static
;
4975 FOREACH_AFI_SAFI (afi
, safi
)
4976 for (rn
= bgp_table_top(bgp
->route
[afi
][safi
]); rn
;
4977 rn
= bgp_route_next(rn
)) {
4978 if (rn
->info
== NULL
)
4981 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_ENCAP
)
4982 || (safi
== SAFI_EVPN
)) {
4985 for (rm
= bgp_table_top(table
); rm
;
4986 rm
= bgp_route_next(rm
)) {
4988 bgp_static_get_node_info(rm
);
4989 bgp_static_update_safi(bgp
, &rm
->p
,
4994 bgp_static_update(bgp
, &rn
->p
,
4995 bgp_static_get_node_info(rn
),
5001 /* Called from bgp_delete(). Delete all static routes from the BGP
5003 void bgp_static_delete(struct bgp
*bgp
)
5007 struct bgp_node
*rn
;
5008 struct bgp_node
*rm
;
5009 struct bgp_table
*table
;
5010 struct bgp_static
*bgp_static
;
5012 FOREACH_AFI_SAFI (afi
, safi
)
5013 for (rn
= bgp_table_top(bgp
->route
[afi
][safi
]); rn
;
5014 rn
= bgp_route_next(rn
)) {
5015 if (rn
->info
== NULL
)
5018 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_ENCAP
)
5019 || (safi
== SAFI_EVPN
)) {
5022 for (rm
= bgp_table_top(table
); rm
;
5023 rm
= bgp_route_next(rm
)) {
5025 bgp_static_get_node_info(rm
);
5026 bgp_static_withdraw_safi(
5027 bgp
, &rm
->p
, AFI_IP
, safi
,
5028 (struct prefix_rd
*)&rn
->p
);
5029 bgp_static_free(bgp_static
);
5030 bgp_static_set_node_info(rn
, NULL
);
5031 bgp_unlock_node(rn
);
5034 bgp_static
= bgp_static_get_node_info(rn
);
5035 bgp_static_withdraw(bgp
, &rn
->p
, afi
, safi
);
5036 bgp_static_free(bgp_static
);
5037 bgp_static_set_node_info(rn
, NULL
);
5038 bgp_unlock_node(rn
);
5043 void bgp_static_redo_import_check(struct bgp
*bgp
)
5047 struct bgp_node
*rn
;
5048 struct bgp_node
*rm
;
5049 struct bgp_table
*table
;
5050 struct bgp_static
*bgp_static
;
5052 /* Use this flag to force reprocessing of the route */
5053 bgp_flag_set(bgp
, BGP_FLAG_FORCE_STATIC_PROCESS
);
5054 FOREACH_AFI_SAFI (afi
, safi
) {
5055 for (rn
= bgp_table_top(bgp
->route
[afi
][safi
]); rn
;
5056 rn
= bgp_route_next(rn
)) {
5057 if (rn
->info
== NULL
)
5060 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_ENCAP
)
5061 || (safi
== SAFI_EVPN
)) {
5064 for (rm
= bgp_table_top(table
); rm
;
5065 rm
= bgp_route_next(rm
)) {
5067 bgp_static_get_node_info(rm
);
5068 bgp_static_update_safi(bgp
, &rm
->p
,
5073 bgp_static
= bgp_static_get_node_info(rn
);
5074 bgp_static_update(bgp
, &rn
->p
, bgp_static
, afi
,
5079 bgp_flag_unset(bgp
, BGP_FLAG_FORCE_STATIC_PROCESS
);
5082 static void bgp_purge_af_static_redist_routes(struct bgp
*bgp
, afi_t afi
,
5085 struct bgp_table
*table
;
5086 struct bgp_node
*rn
;
5087 struct bgp_path_info
*pi
;
5089 table
= bgp
->rib
[afi
][safi
];
5090 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
)) {
5091 for (pi
= rn
->info
; pi
; pi
= pi
->next
) {
5092 if (pi
->peer
== bgp
->peer_self
5093 && ((pi
->type
== ZEBRA_ROUTE_BGP
5094 && pi
->sub_type
== BGP_ROUTE_STATIC
)
5095 || (pi
->type
!= ZEBRA_ROUTE_BGP
5097 == BGP_ROUTE_REDISTRIBUTE
))) {
5098 bgp_aggregate_decrement(bgp
, &rn
->p
, pi
, afi
,
5100 bgp_unlink_nexthop(pi
);
5101 bgp_path_info_delete(rn
, pi
);
5102 bgp_process(bgp
, rn
, afi
, safi
);
5109 * Purge all networks and redistributed routes from routing table.
5110 * Invoked upon the instance going down.
5112 void bgp_purge_static_redist_routes(struct bgp
*bgp
)
5117 FOREACH_AFI_SAFI (afi
, safi
)
5118 bgp_purge_af_static_redist_routes(bgp
, afi
, safi
);
5123 * Currently this is used to set static routes for VPN and ENCAP.
5124 * I think it can probably be factored with bgp_static_set.
5126 int bgp_static_set_safi(afi_t afi
, safi_t safi
, struct vty
*vty
,
5127 const char *ip_str
, const char *rd_str
,
5128 const char *label_str
, const char *rmap_str
,
5129 int evpn_type
, const char *esi
, const char *gwip
,
5130 const char *ethtag
, const char *routermac
)
5132 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
5135 struct prefix_rd prd
;
5136 struct bgp_node
*prn
;
5137 struct bgp_node
*rn
;
5138 struct bgp_table
*table
;
5139 struct bgp_static
*bgp_static
;
5140 mpls_label_t label
= MPLS_INVALID_LABEL
;
5141 struct prefix gw_ip
;
5143 /* validate ip prefix */
5144 ret
= str2prefix(ip_str
, &p
);
5146 vty_out(vty
, "%% Malformed prefix\n");
5147 return CMD_WARNING_CONFIG_FAILED
;
5150 if ((afi
== AFI_L2VPN
)
5151 && (bgp_build_evpn_prefix(evpn_type
,
5152 ethtag
!= NULL
? atol(ethtag
) : 0, &p
))) {
5153 vty_out(vty
, "%% L2VPN prefix could not be forged\n");
5154 return CMD_WARNING_CONFIG_FAILED
;
5157 ret
= str2prefix_rd(rd_str
, &prd
);
5159 vty_out(vty
, "%% Malformed rd\n");
5160 return CMD_WARNING_CONFIG_FAILED
;
5164 unsigned long label_val
;
5165 label_val
= strtoul(label_str
, NULL
, 10);
5166 encode_label(label_val
, &label
);
5169 if (safi
== SAFI_EVPN
) {
5170 if (esi
&& str2esi(esi
, NULL
) == 0) {
5171 vty_out(vty
, "%% Malformed ESI\n");
5172 return CMD_WARNING_CONFIG_FAILED
;
5174 if (routermac
&& prefix_str2mac(routermac
, NULL
) == 0) {
5175 vty_out(vty
, "%% Malformed Router MAC\n");
5176 return CMD_WARNING_CONFIG_FAILED
;
5179 memset(&gw_ip
, 0, sizeof(struct prefix
));
5180 ret
= str2prefix(gwip
, &gw_ip
);
5182 vty_out(vty
, "%% Malformed GatewayIp\n");
5183 return CMD_WARNING_CONFIG_FAILED
;
5185 if ((gw_ip
.family
== AF_INET
5186 && is_evpn_prefix_ipaddr_v6(
5187 (struct prefix_evpn
*)&p
))
5188 || (gw_ip
.family
== AF_INET6
5189 && is_evpn_prefix_ipaddr_v4(
5190 (struct prefix_evpn
*)&p
))) {
5192 "%% GatewayIp family differs with IP prefix\n");
5193 return CMD_WARNING_CONFIG_FAILED
;
5197 prn
= bgp_node_get(bgp
->route
[afi
][safi
], (struct prefix
*)&prd
);
5198 if (prn
->info
== NULL
)
5199 prn
->info
= bgp_table_init(bgp
, afi
, safi
);
5201 bgp_unlock_node(prn
);
5204 rn
= bgp_node_get(table
, &p
);
5207 vty_out(vty
, "%% Same network configuration exists\n");
5208 bgp_unlock_node(rn
);
5210 /* New configuration. */
5211 bgp_static
= bgp_static_new();
5212 bgp_static
->backdoor
= 0;
5213 bgp_static
->valid
= 0;
5214 bgp_static
->igpmetric
= 0;
5215 bgp_static
->igpnexthop
.s_addr
= 0;
5216 bgp_static
->label
= label
;
5217 bgp_static
->prd
= prd
;
5220 if (bgp_static
->rmap
.name
)
5221 XFREE(MTYPE_ROUTE_MAP_NAME
,
5222 bgp_static
->rmap
.name
);
5223 bgp_static
->rmap
.name
=
5224 XSTRDUP(MTYPE_ROUTE_MAP_NAME
, rmap_str
);
5225 bgp_static
->rmap
.map
=
5226 route_map_lookup_by_name(rmap_str
);
5229 if (safi
== SAFI_EVPN
) {
5231 bgp_static
->eth_s_id
=
5233 sizeof(struct eth_segment_id
));
5234 str2esi(esi
, bgp_static
->eth_s_id
);
5237 bgp_static
->router_mac
=
5238 XCALLOC(MTYPE_ATTR
, ETH_ALEN
+ 1);
5239 (void)prefix_str2mac(routermac
,
5240 bgp_static
->router_mac
);
5243 prefix_copy(&bgp_static
->gatewayIp
, &gw_ip
);
5245 bgp_static_set_node_info(rn
, bgp_static
);
5247 bgp_static
->valid
= 1;
5248 bgp_static_update_safi(bgp
, &p
, bgp_static
, afi
, safi
);
5254 /* Configure static BGP network. */
5255 int bgp_static_unset_safi(afi_t afi
, safi_t safi
, struct vty
*vty
,
5256 const char *ip_str
, const char *rd_str
,
5257 const char *label_str
, int evpn_type
, const char *esi
,
5258 const char *gwip
, const char *ethtag
)
5260 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
5263 struct prefix_rd prd
;
5264 struct bgp_node
*prn
;
5265 struct bgp_node
*rn
;
5266 struct bgp_table
*table
;
5267 struct bgp_static
*bgp_static
;
5268 mpls_label_t label
= MPLS_INVALID_LABEL
;
5270 /* Convert IP prefix string to struct prefix. */
5271 ret
= str2prefix(ip_str
, &p
);
5273 vty_out(vty
, "%% Malformed prefix\n");
5274 return CMD_WARNING_CONFIG_FAILED
;
5277 if ((afi
== AFI_L2VPN
)
5278 && (bgp_build_evpn_prefix(evpn_type
,
5279 ethtag
!= NULL
? atol(ethtag
) : 0, &p
))) {
5280 vty_out(vty
, "%% L2VPN prefix could not be forged\n");
5281 return CMD_WARNING_CONFIG_FAILED
;
5283 ret
= str2prefix_rd(rd_str
, &prd
);
5285 vty_out(vty
, "%% Malformed rd\n");
5286 return CMD_WARNING_CONFIG_FAILED
;
5290 unsigned long label_val
;
5291 label_val
= strtoul(label_str
, NULL
, 10);
5292 encode_label(label_val
, &label
);
5295 prn
= bgp_node_get(bgp
->route
[afi
][safi
], (struct prefix
*)&prd
);
5296 if (prn
->info
== NULL
)
5297 prn
->info
= bgp_table_init(bgp
, afi
, safi
);
5299 bgp_unlock_node(prn
);
5302 rn
= bgp_node_lookup(table
, &p
);
5305 bgp_static_withdraw_safi(bgp
, &p
, afi
, safi
, &prd
);
5307 bgp_static
= bgp_static_get_node_info(rn
);
5308 bgp_static_free(bgp_static
);
5309 bgp_static_set_node_info(rn
, NULL
);
5310 bgp_unlock_node(rn
);
5311 bgp_unlock_node(rn
);
5313 vty_out(vty
, "%% Can't find the route\n");
5318 static int bgp_table_map_set(struct vty
*vty
, afi_t afi
, safi_t safi
,
5319 const char *rmap_name
)
5321 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
5322 struct bgp_rmap
*rmap
;
5324 rmap
= &bgp
->table_map
[afi
][safi
];
5327 XFREE(MTYPE_ROUTE_MAP_NAME
, rmap
->name
);
5328 rmap
->name
= XSTRDUP(MTYPE_ROUTE_MAP_NAME
, rmap_name
);
5329 rmap
->map
= route_map_lookup_by_name(rmap_name
);
5332 XFREE(MTYPE_ROUTE_MAP_NAME
, rmap
->name
);
5337 if (bgp_fibupd_safi(safi
))
5338 bgp_zebra_announce_table(bgp
, afi
, safi
);
5343 static int bgp_table_map_unset(struct vty
*vty
, afi_t afi
, safi_t safi
,
5344 const char *rmap_name
)
5346 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
5347 struct bgp_rmap
*rmap
;
5349 rmap
= &bgp
->table_map
[afi
][safi
];
5351 XFREE(MTYPE_ROUTE_MAP_NAME
, rmap
->name
);
5355 if (bgp_fibupd_safi(safi
))
5356 bgp_zebra_announce_table(bgp
, afi
, safi
);
5361 void bgp_config_write_table_map(struct vty
*vty
, struct bgp
*bgp
, afi_t afi
,
5364 if (bgp
->table_map
[afi
][safi
].name
) {
5365 vty_out(vty
, " table-map %s\n",
5366 bgp
->table_map
[afi
][safi
].name
);
5370 DEFUN (bgp_table_map
,
5373 "BGP table to RIB route download filter\n"
5374 "Name of the route map\n")
5377 return bgp_table_map_set(vty
, bgp_node_afi(vty
), bgp_node_safi(vty
),
5378 argv
[idx_word
]->arg
);
5380 DEFUN (no_bgp_table_map
,
5381 no_bgp_table_map_cmd
,
5382 "no table-map WORD",
5384 "BGP table to RIB route download filter\n"
5385 "Name of the route map\n")
5388 return bgp_table_map_unset(vty
, bgp_node_afi(vty
), bgp_node_safi(vty
),
5389 argv
[idx_word
]->arg
);
5395 <A.B.C.D/M$prefix|A.B.C.D$address [mask A.B.C.D$netmask]> \
5396 [{route-map WORD$map_name|label-index (0-1048560)$label_index| \
5397 backdoor$backdoor}]",
5399 "Specify a network to announce via BGP\n"
5404 "Route-map to modify the attributes\n"
5405 "Name of the route map\n"
5406 "Label index to associate with the prefix\n"
5407 "Label index value\n"
5408 "Specify a BGP backdoor route\n")
5410 char addr_prefix_str
[BUFSIZ
];
5415 ret
= netmask_str2prefix_str(address_str
, netmask_str
,
5418 vty_out(vty
, "%% Inconsistent address and mask\n");
5419 return CMD_WARNING_CONFIG_FAILED
;
5423 return bgp_static_set(
5424 vty
, no
, address_str
? addr_prefix_str
: prefix_str
, AFI_IP
,
5425 bgp_node_safi(vty
), map_name
, backdoor
? 1 : 0,
5426 label_index
? (uint32_t)label_index
: BGP_INVALID_LABEL_INDEX
);
5429 DEFPY(ipv6_bgp_network
,
5430 ipv6_bgp_network_cmd
,
5431 "[no] network X:X::X:X/M$prefix \
5432 [{route-map WORD$map_name|label-index (0-1048560)$label_index}]",
5434 "Specify a network to announce via BGP\n"
5436 "Route-map to modify the attributes\n"
5437 "Name of the route map\n"
5438 "Label index to associate with the prefix\n"
5439 "Label index value\n")
5441 return bgp_static_set(
5442 vty
, no
, prefix_str
, AFI_IP6
, bgp_node_safi(vty
), map_name
, 0,
5443 label_index
? (uint32_t)label_index
: BGP_INVALID_LABEL_INDEX
);
5446 /* Aggreagete address:
5448 advertise-map Set condition to advertise attribute
5449 as-set Generate AS set path information
5450 attribute-map Set attributes of aggregate
5451 route-map Set parameters of aggregate
5452 summary-only Filter more specific routes from updates
5453 suppress-map Conditionally filter more specific routes from updates
5456 struct bgp_aggregate
{
5457 /* Summary-only flag. */
5458 uint8_t summary_only
;
5460 /* AS set generation. */
5463 /* Route-map for aggregated route. */
5464 struct route_map
*map
;
5466 /* Suppress-count. */
5467 unsigned long count
;
5469 /* SAFI configuration. */
5473 static struct bgp_aggregate
*bgp_aggregate_new(void)
5475 return XCALLOC(MTYPE_BGP_AGGREGATE
, sizeof(struct bgp_aggregate
));
5478 static void bgp_aggregate_free(struct bgp_aggregate
*aggregate
)
5480 XFREE(MTYPE_BGP_AGGREGATE
, aggregate
);
5483 static int bgp_aggregate_info_same(struct bgp_path_info
*pi
, uint8_t origin
,
5484 struct aspath
*aspath
,
5485 struct community
*comm
)
5487 static struct aspath
*ae
= NULL
;
5490 ae
= aspath_empty();
5495 if (origin
!= pi
->attr
->origin
)
5498 if (!aspath_cmp(pi
->attr
->aspath
, (aspath
) ? aspath
: ae
))
5501 if (!community_cmp(pi
->attr
->community
, comm
))
5504 if (!CHECK_FLAG(pi
->flags
, BGP_PATH_VALID
))
5510 static void bgp_aggregate_install(struct bgp
*bgp
, afi_t afi
, safi_t safi
,
5511 struct prefix
*p
, uint8_t origin
,
5512 struct aspath
*aspath
,
5513 struct community
*community
,
5514 uint8_t atomic_aggregate
,
5515 struct bgp_aggregate
*aggregate
)
5517 struct bgp_node
*rn
;
5518 struct bgp_table
*table
;
5519 struct bgp_path_info
*pi
, *new;
5521 table
= bgp
->rib
[afi
][safi
];
5523 rn
= bgp_node_get(table
, p
);
5525 for (pi
= rn
->info
; pi
; pi
= pi
->next
)
5526 if (pi
->peer
== bgp
->peer_self
&& pi
->type
== ZEBRA_ROUTE_BGP
5527 && pi
->sub_type
== BGP_ROUTE_AGGREGATE
)
5530 if (aggregate
->count
> 0) {
5532 * If the aggregate information has not changed
5533 * no need to re-install it again.
5535 if (bgp_aggregate_info_same(rn
->info
, origin
, aspath
,
5537 bgp_unlock_node(rn
);
5540 aspath_free(aspath
);
5542 community_free(community
);
5548 * Mark the old as unusable
5551 bgp_path_info_delete(rn
, pi
);
5554 ZEBRA_ROUTE_BGP
, BGP_ROUTE_AGGREGATE
, 0, bgp
->peer_self
,
5555 bgp_attr_aggregate_intern(bgp
, origin
, aspath
,
5556 community
, aggregate
->as_set
,
5559 SET_FLAG(new->flags
, BGP_PATH_VALID
);
5561 bgp_path_info_add(rn
, new);
5562 bgp_process(bgp
, rn
, afi
, safi
);
5564 for (pi
= rn
->info
; pi
; pi
= pi
->next
)
5565 if (pi
->peer
== bgp
->peer_self
5566 && pi
->type
== ZEBRA_ROUTE_BGP
5567 && pi
->sub_type
== BGP_ROUTE_AGGREGATE
)
5570 /* Withdraw static BGP route from routing table. */
5572 bgp_path_info_delete(rn
, pi
);
5573 bgp_process(bgp
, rn
, afi
, safi
);
5577 bgp_unlock_node(rn
);
5580 /* Update an aggregate as routes are added/removed from the BGP table */
5581 static void bgp_aggregate_route(struct bgp
*bgp
, struct prefix
*p
,
5582 struct bgp_path_info
*pinew
, afi_t afi
,
5583 safi_t safi
, struct bgp_path_info
*del
,
5584 struct bgp_aggregate
*aggregate
)
5586 struct bgp_table
*table
;
5587 struct bgp_node
*top
;
5588 struct bgp_node
*rn
;
5590 struct aspath
*aspath
= NULL
;
5591 struct aspath
*asmerge
= NULL
;
5592 struct community
*community
= NULL
;
5593 struct community
*commerge
= NULL
;
5594 struct bgp_path_info
*pi
;
5595 unsigned long match
= 0;
5596 uint8_t atomic_aggregate
= 0;
5598 /* ORIGIN attribute: If at least one route among routes that are
5599 aggregated has ORIGIN with the value INCOMPLETE, then the
5600 aggregated route must have the ORIGIN attribute with the value
5601 INCOMPLETE. Otherwise, if at least one route among routes that
5602 are aggregated has ORIGIN with the value EGP, then the aggregated
5603 route must have the origin attribute with the value EGP. In all
5604 other case the value of the ORIGIN attribute of the aggregated
5605 route is INTERNAL. */
5606 origin
= BGP_ORIGIN_IGP
;
5608 table
= bgp
->rib
[afi
][safi
];
5610 top
= bgp_node_get(table
, p
);
5611 for (rn
= bgp_node_get(table
, p
); rn
;
5612 rn
= bgp_route_next_until(rn
, top
)) {
5613 if (rn
->p
.prefixlen
<= p
->prefixlen
)
5618 for (pi
= rn
->info
; pi
; pi
= pi
->next
) {
5619 if (BGP_PATH_HOLDDOWN(pi
))
5622 if (del
&& pi
== del
)
5626 & ATTR_FLAG_BIT(BGP_ATTR_ATOMIC_AGGREGATE
))
5627 atomic_aggregate
= 1;
5629 if (pi
->sub_type
== BGP_ROUTE_AGGREGATE
)
5633 * summary-only aggregate route suppress
5634 * aggregated route announcements.
5636 if (aggregate
->summary_only
) {
5637 (bgp_path_info_extra_get(pi
))->suppress
++;
5638 bgp_path_info_set_flag(rn
, pi
,
5639 BGP_PATH_ATTR_CHANGED
);
5646 * If at least one route among routes that are
5647 * aggregated has ORIGIN with the value INCOMPLETE,
5648 * then the aggregated route MUST have the ORIGIN
5649 * attribute with the value INCOMPLETE. Otherwise, if
5650 * at least one route among routes that are aggregated
5651 * has ORIGIN with the value EGP, then the aggregated
5652 * route MUST have the ORIGIN attribute with the value
5655 if (origin
< pi
->attr
->origin
)
5656 origin
= pi
->attr
->origin
;
5658 if (!aggregate
->as_set
)
5662 * as-set aggregate route generate origin, as path,
5663 * and community aggregation.
5666 asmerge
= aspath_aggregate(aspath
,
5668 aspath_free(aspath
);
5671 aspath
= aspath_dup(pi
->attr
->aspath
);
5673 if (!pi
->attr
->community
)
5677 commerge
= community_merge(community
,
5678 pi
->attr
->community
);
5679 community
= community_uniq_sort(commerge
);
5680 community_free(commerge
);
5682 community
= community_dup(pi
->attr
->community
);
5685 bgp_process(bgp
, rn
, afi
, safi
);
5687 bgp_unlock_node(top
);
5692 if (aggregate
->summary_only
)
5693 (bgp_path_info_extra_get(pinew
))->suppress
++;
5695 if (origin
< pinew
->attr
->origin
)
5696 origin
= pinew
->attr
->origin
;
5698 if (aggregate
->as_set
) {
5700 asmerge
= aspath_aggregate(aspath
,
5701 pinew
->attr
->aspath
);
5702 aspath_free(aspath
);
5705 aspath
= aspath_dup(pinew
->attr
->aspath
);
5707 if (pinew
->attr
->community
) {
5709 commerge
= community_merge(
5711 pinew
->attr
->community
);
5713 community_uniq_sort(commerge
);
5714 community_free(commerge
);
5716 community
= community_dup(
5717 pinew
->attr
->community
);
5722 bgp_aggregate_install(bgp
, afi
, safi
, p
, origin
, aspath
, community
,
5723 atomic_aggregate
, aggregate
);
5725 if (aggregate
->count
== 0) {
5727 aspath_free(aspath
);
5729 community_free(community
);
5733 static void bgp_aggregate_delete(struct bgp
*bgp
, struct prefix
*p
, afi_t afi
,
5734 safi_t safi
, struct bgp_aggregate
*aggregate
)
5736 struct bgp_table
*table
;
5737 struct bgp_node
*top
;
5738 struct bgp_node
*rn
;
5739 struct bgp_path_info
*pi
;
5740 unsigned long match
;
5742 table
= bgp
->rib
[afi
][safi
];
5744 /* If routes exists below this node, generate aggregate routes. */
5745 top
= bgp_node_get(table
, p
);
5746 for (rn
= bgp_node_get(table
, p
); rn
;
5747 rn
= bgp_route_next_until(rn
, top
)) {
5748 if (rn
->p
.prefixlen
<= p
->prefixlen
)
5752 for (pi
= rn
->info
; pi
; pi
= pi
->next
) {
5753 if (BGP_PATH_HOLDDOWN(pi
))
5756 if (pi
->sub_type
== BGP_ROUTE_AGGREGATE
)
5759 if (aggregate
->summary_only
&& pi
->extra
) {
5760 pi
->extra
->suppress
--;
5762 if (pi
->extra
->suppress
== 0) {
5763 bgp_path_info_set_flag(
5764 rn
, pi
, BGP_PATH_ATTR_CHANGED
);
5771 /* If this node was suppressed, process the change. */
5773 bgp_process(bgp
, rn
, afi
, safi
);
5775 bgp_unlock_node(top
);
5778 void bgp_aggregate_increment(struct bgp
*bgp
, struct prefix
*p
,
5779 struct bgp_path_info
*pi
, afi_t afi
, safi_t safi
)
5781 struct bgp_node
*child
;
5782 struct bgp_node
*rn
;
5783 struct bgp_aggregate
*aggregate
;
5784 struct bgp_table
*table
;
5786 table
= bgp
->aggregate
[afi
][safi
];
5788 /* No aggregates configured. */
5789 if (bgp_table_top_nolock(table
) == NULL
)
5792 if (p
->prefixlen
== 0)
5795 if (BGP_PATH_HOLDDOWN(pi
))
5798 child
= bgp_node_get(table
, p
);
5800 /* Aggregate address configuration check. */
5801 for (rn
= child
; rn
; rn
= bgp_node_parent_nolock(rn
)) {
5802 aggregate
= bgp_aggregate_get_node_info(rn
);
5803 if (aggregate
!= NULL
&& rn
->p
.prefixlen
< p
->prefixlen
) {
5804 bgp_aggregate_delete(bgp
, &rn
->p
, afi
, safi
, aggregate
);
5805 bgp_aggregate_route(bgp
, &rn
->p
, pi
, afi
, safi
, NULL
,
5809 bgp_unlock_node(child
);
5812 void bgp_aggregate_decrement(struct bgp
*bgp
, struct prefix
*p
,
5813 struct bgp_path_info
*del
, afi_t afi
, safi_t safi
)
5815 struct bgp_node
*child
;
5816 struct bgp_node
*rn
;
5817 struct bgp_aggregate
*aggregate
;
5818 struct bgp_table
*table
;
5820 table
= bgp
->aggregate
[afi
][safi
];
5822 /* No aggregates configured. */
5823 if (bgp_table_top_nolock(table
) == NULL
)
5826 if (p
->prefixlen
== 0)
5829 child
= bgp_node_get(table
, p
);
5831 /* Aggregate address configuration check. */
5832 for (rn
= child
; rn
; rn
= bgp_node_parent_nolock(rn
)) {
5833 aggregate
= bgp_aggregate_get_node_info(rn
);
5834 if (aggregate
!= NULL
&& rn
->p
.prefixlen
< p
->prefixlen
) {
5835 bgp_aggregate_delete(bgp
, &rn
->p
, afi
, safi
, aggregate
);
5836 bgp_aggregate_route(bgp
, &rn
->p
, NULL
, afi
, safi
, del
,
5840 bgp_unlock_node(child
);
5843 /* Aggregate route attribute. */
5844 #define AGGREGATE_SUMMARY_ONLY 1
5845 #define AGGREGATE_AS_SET 1
5847 static int bgp_aggregate_unset(struct vty
*vty
, const char *prefix_str
,
5848 afi_t afi
, safi_t safi
)
5850 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
5853 struct bgp_node
*rn
;
5854 struct bgp_aggregate
*aggregate
;
5856 /* Convert string to prefix structure. */
5857 ret
= str2prefix(prefix_str
, &p
);
5859 vty_out(vty
, "Malformed prefix\n");
5860 return CMD_WARNING_CONFIG_FAILED
;
5864 /* Old configuration check. */
5865 rn
= bgp_node_lookup(bgp
->aggregate
[afi
][safi
], &p
);
5868 "%% There is no aggregate-address configuration.\n");
5869 return CMD_WARNING_CONFIG_FAILED
;
5872 aggregate
= bgp_aggregate_get_node_info(rn
);
5873 bgp_aggregate_delete(bgp
, &p
, afi
, safi
, aggregate
);
5874 bgp_aggregate_install(bgp
, afi
, safi
, &p
, 0, NULL
, NULL
, 0, aggregate
);
5876 /* Unlock aggregate address configuration. */
5877 bgp_aggregate_set_node_info(rn
, NULL
);
5878 bgp_aggregate_free(aggregate
);
5879 bgp_unlock_node(rn
);
5880 bgp_unlock_node(rn
);
5885 static int bgp_aggregate_set(struct vty
*vty
, const char *prefix_str
, afi_t afi
,
5886 safi_t safi
, uint8_t summary_only
, uint8_t as_set
)
5888 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
5891 struct bgp_node
*rn
;
5892 struct bgp_aggregate
*aggregate
;
5894 /* Convert string to prefix structure. */
5895 ret
= str2prefix(prefix_str
, &p
);
5897 vty_out(vty
, "Malformed prefix\n");
5898 return CMD_WARNING_CONFIG_FAILED
;
5902 if ((afi
== AFI_IP
&& p
.prefixlen
== IPV4_MAX_BITLEN
) ||
5903 (afi
== AFI_IP6
&& p
.prefixlen
== IPV6_MAX_BITLEN
)) {
5904 vty_out(vty
, "Specified prefix: %s will not result in any useful aggregation, disallowing\n",
5906 return CMD_WARNING_CONFIG_FAILED
;
5909 /* Old configuration check. */
5910 rn
= bgp_node_get(bgp
->aggregate
[afi
][safi
], &p
);
5913 vty_out(vty
, "There is already same aggregate network.\n");
5914 /* try to remove the old entry */
5915 ret
= bgp_aggregate_unset(vty
, prefix_str
, afi
, safi
);
5917 vty_out(vty
, "Error deleting aggregate.\n");
5918 bgp_unlock_node(rn
);
5919 return CMD_WARNING_CONFIG_FAILED
;
5923 /* Make aggregate address structure. */
5924 aggregate
= bgp_aggregate_new();
5925 aggregate
->summary_only
= summary_only
;
5926 aggregate
->as_set
= as_set
;
5927 aggregate
->safi
= safi
;
5928 bgp_aggregate_set_node_info(rn
, aggregate
);
5930 /* Aggregate address insert into BGP routing table. */
5931 bgp_aggregate_route(bgp
, &p
, NULL
, afi
, safi
, NULL
, aggregate
);
5936 DEFUN (aggregate_address
,
5937 aggregate_address_cmd
,
5938 "aggregate-address A.B.C.D/M [<as-set [summary-only]|summary-only [as-set]>]",
5939 "Configure BGP aggregate entries\n"
5940 "Aggregate prefix\n"
5941 "Generate AS set path information\n"
5942 "Filter more specific routes from updates\n"
5943 "Filter more specific routes from updates\n"
5944 "Generate AS set path information\n")
5947 argv_find(argv
, argc
, "A.B.C.D/M", &idx
);
5948 char *prefix
= argv
[idx
]->arg
;
5950 argv_find(argv
, argc
, "as-set", &idx
) ? AGGREGATE_AS_SET
: 0;
5952 int summary_only
= argv_find(argv
, argc
, "summary-only", &idx
)
5953 ? AGGREGATE_SUMMARY_ONLY
5956 return bgp_aggregate_set(vty
, prefix
, AFI_IP
, bgp_node_safi(vty
),
5957 summary_only
, as_set
);
5960 DEFUN (aggregate_address_mask
,
5961 aggregate_address_mask_cmd
,
5962 "aggregate-address A.B.C.D A.B.C.D [<as-set [summary-only]|summary-only [as-set]>]",
5963 "Configure BGP aggregate entries\n"
5964 "Aggregate address\n"
5966 "Generate AS set path information\n"
5967 "Filter more specific routes from updates\n"
5968 "Filter more specific routes from updates\n"
5969 "Generate AS set path information\n")
5972 argv_find(argv
, argc
, "A.B.C.D", &idx
);
5973 char *prefix
= argv
[idx
]->arg
;
5974 char *mask
= argv
[idx
+ 1]->arg
;
5976 argv_find(argv
, argc
, "as-set", &idx
) ? AGGREGATE_AS_SET
: 0;
5978 int summary_only
= argv_find(argv
, argc
, "summary-only", &idx
)
5979 ? AGGREGATE_SUMMARY_ONLY
5982 char prefix_str
[BUFSIZ
];
5983 int ret
= netmask_str2prefix_str(prefix
, mask
, prefix_str
);
5986 vty_out(vty
, "%% Inconsistent address and mask\n");
5987 return CMD_WARNING_CONFIG_FAILED
;
5990 return bgp_aggregate_set(vty
, prefix_str
, AFI_IP
, bgp_node_safi(vty
),
5991 summary_only
, as_set
);
5994 DEFUN (no_aggregate_address
,
5995 no_aggregate_address_cmd
,
5996 "no aggregate-address A.B.C.D/M [<as-set [summary-only]|summary-only [as-set]>]",
5998 "Configure BGP aggregate entries\n"
5999 "Aggregate prefix\n"
6000 "Generate AS set path information\n"
6001 "Filter more specific routes from updates\n"
6002 "Filter more specific routes from updates\n"
6003 "Generate AS set path information\n")
6006 argv_find(argv
, argc
, "A.B.C.D/M", &idx
);
6007 char *prefix
= argv
[idx
]->arg
;
6008 return bgp_aggregate_unset(vty
, prefix
, AFI_IP
, bgp_node_safi(vty
));
6011 DEFUN (no_aggregate_address_mask
,
6012 no_aggregate_address_mask_cmd
,
6013 "no aggregate-address A.B.C.D A.B.C.D [<as-set [summary-only]|summary-only [as-set]>]",
6015 "Configure BGP aggregate entries\n"
6016 "Aggregate address\n"
6018 "Generate AS set path information\n"
6019 "Filter more specific routes from updates\n"
6020 "Filter more specific routes from updates\n"
6021 "Generate AS set path information\n")
6024 argv_find(argv
, argc
, "A.B.C.D", &idx
);
6025 char *prefix
= argv
[idx
]->arg
;
6026 char *mask
= argv
[idx
+ 1]->arg
;
6028 char prefix_str
[BUFSIZ
];
6029 int ret
= netmask_str2prefix_str(prefix
, mask
, prefix_str
);
6032 vty_out(vty
, "%% Inconsistent address and mask\n");
6033 return CMD_WARNING_CONFIG_FAILED
;
6036 return bgp_aggregate_unset(vty
, prefix_str
, AFI_IP
, bgp_node_safi(vty
));
6039 DEFUN (ipv6_aggregate_address
,
6040 ipv6_aggregate_address_cmd
,
6041 "aggregate-address X:X::X:X/M [summary-only]",
6042 "Configure BGP aggregate entries\n"
6043 "Aggregate prefix\n"
6044 "Filter more specific routes from updates\n")
6047 argv_find(argv
, argc
, "X:X::X:X/M", &idx
);
6048 char *prefix
= argv
[idx
]->arg
;
6049 int sum_only
= argv_find(argv
, argc
, "summary-only", &idx
)
6050 ? AGGREGATE_SUMMARY_ONLY
6052 return bgp_aggregate_set(vty
, prefix
, AFI_IP6
, SAFI_UNICAST
, sum_only
,
6056 DEFUN (no_ipv6_aggregate_address
,
6057 no_ipv6_aggregate_address_cmd
,
6058 "no aggregate-address X:X::X:X/M [summary-only]",
6060 "Configure BGP aggregate entries\n"
6061 "Aggregate prefix\n"
6062 "Filter more specific routes from updates\n")
6065 argv_find(argv
, argc
, "X:X::X:X/M", &idx
);
6066 char *prefix
= argv
[idx
]->arg
;
6067 return bgp_aggregate_unset(vty
, prefix
, AFI_IP6
, SAFI_UNICAST
);
6070 /* Redistribute route treatment. */
6071 void bgp_redistribute_add(struct bgp
*bgp
, struct prefix
*p
,
6072 const union g_addr
*nexthop
, ifindex_t ifindex
,
6073 enum nexthop_types_t nhtype
, uint32_t metric
,
6074 uint8_t type
, unsigned short instance
,
6077 struct bgp_path_info
*new;
6078 struct bgp_path_info
*bpi
;
6079 struct bgp_path_info rmap_path
;
6080 struct bgp_node
*bn
;
6082 struct attr
*new_attr
;
6085 struct bgp_redist
*red
;
6087 /* Make default attribute. */
6088 bgp_attr_default_set(&attr
, BGP_ORIGIN_INCOMPLETE
);
6091 case NEXTHOP_TYPE_IFINDEX
:
6093 case NEXTHOP_TYPE_IPV4
:
6094 case NEXTHOP_TYPE_IPV4_IFINDEX
:
6095 attr
.nexthop
= nexthop
->ipv4
;
6097 case NEXTHOP_TYPE_IPV6
:
6098 case NEXTHOP_TYPE_IPV6_IFINDEX
:
6099 attr
.mp_nexthop_global
= nexthop
->ipv6
;
6100 attr
.mp_nexthop_len
= BGP_ATTR_NHLEN_IPV6_GLOBAL
;
6102 case NEXTHOP_TYPE_BLACKHOLE
:
6103 switch (p
->family
) {
6105 attr
.nexthop
.s_addr
= INADDR_ANY
;
6108 memset(&attr
.mp_nexthop_global
, 0,
6109 sizeof(attr
.mp_nexthop_global
));
6110 attr
.mp_nexthop_len
= BGP_ATTR_NHLEN_IPV6_GLOBAL
;
6115 attr
.nh_ifindex
= ifindex
;
6118 attr
.flag
|= ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
);
6121 afi
= family2afi(p
->family
);
6123 red
= bgp_redist_lookup(bgp
, afi
, type
, instance
);
6125 struct attr attr_new
;
6127 /* Copy attribute for modification. */
6128 bgp_attr_dup(&attr_new
, &attr
);
6130 if (red
->redist_metric_flag
)
6131 attr_new
.med
= red
->redist_metric
;
6133 /* Apply route-map. */
6134 if (red
->rmap
.name
) {
6135 memset(&rmap_path
, 0, sizeof(struct bgp_path_info
));
6136 rmap_path
.peer
= bgp
->peer_self
;
6137 rmap_path
.attr
= &attr_new
;
6139 SET_FLAG(bgp
->peer_self
->rmap_type
,
6140 PEER_RMAP_TYPE_REDISTRIBUTE
);
6142 ret
= route_map_apply(red
->rmap
.map
, p
, RMAP_BGP
,
6145 bgp
->peer_self
->rmap_type
= 0;
6147 if (ret
== RMAP_DENYMATCH
) {
6148 /* Free uninterned attribute. */
6149 bgp_attr_flush(&attr_new
);
6151 /* Unintern original. */
6152 aspath_unintern(&attr
.aspath
);
6153 bgp_redistribute_delete(bgp
, p
, type
, instance
);
6158 if (bgp_flag_check(bgp
, BGP_FLAG_GRACEFUL_SHUTDOWN
))
6159 bgp_attr_add_gshut_community(&attr_new
);
6161 bn
= bgp_afi_node_get(bgp
->rib
[afi
][SAFI_UNICAST
], afi
,
6162 SAFI_UNICAST
, p
, NULL
);
6164 new_attr
= bgp_attr_intern(&attr_new
);
6166 for (bpi
= bn
->info
; bpi
; bpi
= bpi
->next
)
6167 if (bpi
->peer
== bgp
->peer_self
6168 && bpi
->sub_type
== BGP_ROUTE_REDISTRIBUTE
)
6172 /* Ensure the (source route) type is updated. */
6174 if (attrhash_cmp(bpi
->attr
, new_attr
)
6175 && !CHECK_FLAG(bpi
->flags
, BGP_PATH_REMOVED
)) {
6176 bgp_attr_unintern(&new_attr
);
6177 aspath_unintern(&attr
.aspath
);
6178 bgp_unlock_node(bn
);
6181 /* The attribute is changed. */
6182 bgp_path_info_set_flag(bn
, bpi
,
6183 BGP_PATH_ATTR_CHANGED
);
6185 /* Rewrite BGP route information. */
6186 if (CHECK_FLAG(bpi
->flags
, BGP_PATH_REMOVED
))
6187 bgp_path_info_restore(bn
, bpi
);
6189 bgp_aggregate_decrement(
6190 bgp
, p
, bpi
, afi
, SAFI_UNICAST
);
6191 bgp_attr_unintern(&bpi
->attr
);
6192 bpi
->attr
= new_attr
;
6193 bpi
->uptime
= bgp_clock();
6195 /* Process change. */
6196 bgp_aggregate_increment(bgp
, p
, bpi
, afi
,
6198 bgp_process(bgp
, bn
, afi
, SAFI_UNICAST
);
6199 bgp_unlock_node(bn
);
6200 aspath_unintern(&attr
.aspath
);
6202 if ((bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
)
6204 == BGP_INSTANCE_TYPE_DEFAULT
)) {
6206 vpn_leak_from_vrf_update(
6207 bgp_get_default(), bgp
, bpi
);
6213 new = info_make(type
, BGP_ROUTE_REDISTRIBUTE
, instance
,
6214 bgp
->peer_self
, new_attr
, bn
);
6215 SET_FLAG(new->flags
, BGP_PATH_VALID
);
6217 bgp_aggregate_increment(bgp
, p
, new, afi
, SAFI_UNICAST
);
6218 bgp_path_info_add(bn
, new);
6219 bgp_unlock_node(bn
);
6220 bgp_process(bgp
, bn
, afi
, SAFI_UNICAST
);
6222 if ((bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
)
6223 || (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
6225 vpn_leak_from_vrf_update(bgp_get_default(), bgp
, new);
6229 /* Unintern original. */
6230 aspath_unintern(&attr
.aspath
);
6233 void bgp_redistribute_delete(struct bgp
*bgp
, struct prefix
*p
, uint8_t type
,
6234 unsigned short instance
)
6237 struct bgp_node
*rn
;
6238 struct bgp_path_info
*pi
;
6239 struct bgp_redist
*red
;
6241 afi
= family2afi(p
->family
);
6243 red
= bgp_redist_lookup(bgp
, afi
, type
, instance
);
6245 rn
= bgp_afi_node_get(bgp
->rib
[afi
][SAFI_UNICAST
], afi
,
6246 SAFI_UNICAST
, p
, NULL
);
6248 for (pi
= rn
->info
; pi
; pi
= pi
->next
)
6249 if (pi
->peer
== bgp
->peer_self
&& pi
->type
== type
)
6253 if ((bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
)
6254 || (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
6256 vpn_leak_from_vrf_withdraw(bgp_get_default(),
6259 bgp_aggregate_decrement(bgp
, p
, pi
, afi
, SAFI_UNICAST
);
6260 bgp_path_info_delete(rn
, pi
);
6261 bgp_process(bgp
, rn
, afi
, SAFI_UNICAST
);
6263 bgp_unlock_node(rn
);
6267 /* Withdraw specified route type's route. */
6268 void bgp_redistribute_withdraw(struct bgp
*bgp
, afi_t afi
, int type
,
6269 unsigned short instance
)
6271 struct bgp_node
*rn
;
6272 struct bgp_path_info
*pi
;
6273 struct bgp_table
*table
;
6275 table
= bgp
->rib
[afi
][SAFI_UNICAST
];
6277 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
)) {
6278 for (pi
= rn
->info
; pi
; pi
= pi
->next
)
6279 if (pi
->peer
== bgp
->peer_self
&& pi
->type
== type
6280 && pi
->instance
== instance
)
6284 if ((bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
)
6285 || (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
6287 vpn_leak_from_vrf_withdraw(bgp_get_default(),
6290 bgp_aggregate_decrement(bgp
, &rn
->p
, pi
, afi
,
6292 bgp_path_info_delete(rn
, pi
);
6293 bgp_process(bgp
, rn
, afi
, SAFI_UNICAST
);
6298 /* Static function to display route. */
6299 static void route_vty_out_route(struct prefix
*p
, struct vty
*vty
,
6305 if (p
->family
== AF_INET
) {
6309 inet_ntop(p
->family
, &p
->u
.prefix
, buf
, BUFSIZ
),
6312 json_object_string_add(json
, "prefix",
6313 inet_ntop(p
->family
,
6316 json_object_int_add(json
, "prefixLen", p
->prefixlen
);
6318 } else if (p
->family
== AF_ETHERNET
) {
6319 prefix2str(p
, buf
, PREFIX_STRLEN
);
6320 len
= vty_out(vty
, "%s", buf
);
6321 } else if (p
->family
== AF_EVPN
) {
6325 bgp_evpn_route2str((struct prefix_evpn
*)p
, buf
,
6328 bgp_evpn_route2json((struct prefix_evpn
*)p
, json
);
6329 } else if (p
->family
== AF_FLOWSPEC
) {
6330 route_vty_out_flowspec(vty
, p
, NULL
,
6332 NLRI_STRING_FORMAT_JSON_SIMPLE
:
6333 NLRI_STRING_FORMAT_MIN
, json
);
6338 inet_ntop(p
->family
, &p
->u
.prefix
, buf
, BUFSIZ
),
6345 vty_out(vty
, "\n%*s", 20, " ");
6347 vty_out(vty
, "%*s", len
, " ");
6351 enum bgp_display_type
{
6355 /* Print the short form route status for a bgp_path_info */
6356 static void route_vty_short_status_out(struct vty
*vty
,
6357 struct bgp_path_info
*path
,
6358 json_object
*json_path
)
6362 /* Route status display. */
6363 if (CHECK_FLAG(path
->flags
, BGP_PATH_REMOVED
))
6364 json_object_boolean_true_add(json_path
, "removed");
6366 if (CHECK_FLAG(path
->flags
, BGP_PATH_STALE
))
6367 json_object_boolean_true_add(json_path
, "stale");
6369 if (path
->extra
&& path
->extra
->suppress
)
6370 json_object_boolean_true_add(json_path
, "suppressed");
6372 if (CHECK_FLAG(path
->flags
, BGP_PATH_VALID
)
6373 && !CHECK_FLAG(path
->flags
, BGP_PATH_HISTORY
))
6374 json_object_boolean_true_add(json_path
, "valid");
6377 if (CHECK_FLAG(path
->flags
, BGP_PATH_HISTORY
))
6378 json_object_boolean_true_add(json_path
, "history");
6380 if (CHECK_FLAG(path
->flags
, BGP_PATH_DAMPED
))
6381 json_object_boolean_true_add(json_path
, "damped");
6383 if (CHECK_FLAG(path
->flags
, BGP_PATH_SELECTED
))
6384 json_object_boolean_true_add(json_path
, "bestpath");
6386 if (CHECK_FLAG(path
->flags
, BGP_PATH_MULTIPATH
))
6387 json_object_boolean_true_add(json_path
, "multipath");
6389 /* Internal route. */
6390 if ((path
->peer
->as
)
6391 && (path
->peer
->as
== path
->peer
->local_as
))
6392 json_object_string_add(json_path
, "pathFrom",
6395 json_object_string_add(json_path
, "pathFrom",
6401 /* Route status display. */
6402 if (CHECK_FLAG(path
->flags
, BGP_PATH_REMOVED
))
6404 else if (CHECK_FLAG(path
->flags
, BGP_PATH_STALE
))
6406 else if (path
->extra
&& path
->extra
->suppress
)
6408 else if (CHECK_FLAG(path
->flags
, BGP_PATH_VALID
)
6409 && !CHECK_FLAG(path
->flags
, BGP_PATH_HISTORY
))
6415 if (CHECK_FLAG(path
->flags
, BGP_PATH_HISTORY
))
6417 else if (CHECK_FLAG(path
->flags
, BGP_PATH_DAMPED
))
6419 else if (CHECK_FLAG(path
->flags
, BGP_PATH_SELECTED
))
6421 else if (CHECK_FLAG(path
->flags
, BGP_PATH_MULTIPATH
))
6426 /* Internal route. */
6427 if (path
->peer
&& (path
->peer
->as
)
6428 && (path
->peer
->as
== path
->peer
->local_as
))
6434 /* called from terminal list command */
6435 void route_vty_out(struct vty
*vty
, struct prefix
*p
,
6436 struct bgp_path_info
*path
, int display
, safi_t safi
,
6437 json_object
*json_paths
)
6440 json_object
*json_path
= NULL
;
6441 json_object
*json_nexthops
= NULL
;
6442 json_object
*json_nexthop_global
= NULL
;
6443 json_object
*json_nexthop_ll
= NULL
;
6444 char vrf_id_str
[VRF_NAMSIZ
] = {0};
6446 CHECK_FLAG(path
->flags
, BGP_PATH_ANNC_NH_SELF
) ? true : false;
6447 bool nexthop_othervrf
= false;
6448 vrf_id_t nexthop_vrfid
= VRF_DEFAULT
;
6449 const char *nexthop_vrfname
= "Default";
6452 json_path
= json_object_new_object();
6454 /* short status lead text */
6455 route_vty_short_status_out(vty
, path
, json_path
);
6458 /* print prefix and mask */
6460 route_vty_out_route(p
, vty
, json_path
);
6462 vty_out(vty
, "%*s", 17, " ");
6464 route_vty_out_route(p
, vty
, json_path
);
6467 /* Print attribute */
6471 json_object_array_add(json_paths
, json_path
);
6479 * If vrf id of nexthop is different from that of prefix,
6480 * set up printable string to append
6482 if (path
->extra
&& path
->extra
->bgp_orig
) {
6483 const char *self
= "";
6488 nexthop_othervrf
= true;
6489 nexthop_vrfid
= path
->extra
->bgp_orig
->vrf_id
;
6491 if (path
->extra
->bgp_orig
->vrf_id
== VRF_UNKNOWN
)
6492 snprintf(vrf_id_str
, sizeof(vrf_id_str
),
6493 "@%s%s", VRFID_NONE_STR
, self
);
6495 snprintf(vrf_id_str
, sizeof(vrf_id_str
), "@%u%s",
6496 path
->extra
->bgp_orig
->vrf_id
, self
);
6498 if (path
->extra
->bgp_orig
->inst_type
6499 != BGP_INSTANCE_TYPE_DEFAULT
)
6501 nexthop_vrfname
= path
->extra
->bgp_orig
->name
;
6503 const char *self
= "";
6508 snprintf(vrf_id_str
, sizeof(vrf_id_str
), "%s", self
);
6512 * For ENCAP and EVPN routes, nexthop address family is not
6513 * neccessarily the same as the prefix address family.
6514 * Both SAFI_MPLS_VPN and SAFI_ENCAP use the MP nexthop field
6515 * EVPN routes are also exchanged with a MP nexthop. Currently,
6517 * is only IPv4, the value will be present in either
6519 * attr->mp_nexthop_global_in
6521 if ((safi
== SAFI_ENCAP
) || (safi
== SAFI_MPLS_VPN
)) {
6524 int af
= NEXTHOP_FAMILY(attr
->mp_nexthop_len
);
6528 sprintf(nexthop
, "%s",
6529 inet_ntop(af
, &attr
->mp_nexthop_global_in
, buf
,
6533 sprintf(nexthop
, "%s",
6534 inet_ntop(af
, &attr
->mp_nexthop_global
, buf
,
6538 sprintf(nexthop
, "?");
6543 json_nexthop_global
= json_object_new_object();
6545 json_object_string_add(json_nexthop_global
, "afi",
6546 (af
== AF_INET
) ? "ip" : "ipv6");
6547 json_object_string_add(json_nexthop_global
,
6548 (af
== AF_INET
) ? "ip" : "ipv6",
6550 json_object_boolean_true_add(json_nexthop_global
,
6553 vty_out(vty
, "%s%s", nexthop
, vrf_id_str
);
6554 } else if (safi
== SAFI_EVPN
) {
6556 json_nexthop_global
= json_object_new_object();
6558 json_object_string_add(json_nexthop_global
, "ip",
6559 inet_ntoa(attr
->nexthop
));
6560 json_object_string_add(json_nexthop_global
, "afi",
6562 json_object_boolean_true_add(json_nexthop_global
,
6565 vty_out(vty
, "%-16s%s", inet_ntoa(attr
->nexthop
),
6567 } else if (safi
== SAFI_FLOWSPEC
) {
6568 if (attr
->nexthop
.s_addr
!= 0) {
6570 json_nexthop_global
= json_object_new_object();
6571 json_object_string_add(
6572 json_nexthop_global
, "ip",
6573 inet_ntoa(attr
->nexthop
));
6574 json_object_string_add(json_nexthop_global
,
6576 json_object_boolean_true_add(json_nexthop_global
,
6579 vty_out(vty
, "%-16s", inet_ntoa(attr
->nexthop
));
6582 } else if (p
->family
== AF_INET
&& !BGP_ATTR_NEXTHOP_AFI_IP6(attr
)) {
6584 json_nexthop_global
= json_object_new_object();
6586 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_EVPN
))
6587 json_object_string_add(
6588 json_nexthop_global
, "ip",
6589 inet_ntoa(attr
->mp_nexthop_global_in
));
6591 json_object_string_add(
6592 json_nexthop_global
, "ip",
6593 inet_ntoa(attr
->nexthop
));
6595 json_object_string_add(json_nexthop_global
, "afi",
6597 json_object_boolean_true_add(json_nexthop_global
,
6602 snprintf(buf
, sizeof(buf
), "%s%s",
6603 inet_ntoa(attr
->nexthop
), vrf_id_str
);
6604 vty_out(vty
, "%-16s", buf
);
6609 else if (p
->family
== AF_INET6
|| BGP_ATTR_NEXTHOP_AFI_IP6(attr
)) {
6614 json_nexthop_global
= json_object_new_object();
6615 json_object_string_add(
6616 json_nexthop_global
, "ip",
6617 inet_ntop(AF_INET6
, &attr
->mp_nexthop_global
,
6619 json_object_string_add(json_nexthop_global
, "afi",
6621 json_object_string_add(json_nexthop_global
, "scope",
6624 /* We display both LL & GL if both have been
6626 if ((attr
->mp_nexthop_len
== 32)
6627 || (path
->peer
->conf_if
)) {
6628 json_nexthop_ll
= json_object_new_object();
6629 json_object_string_add(
6630 json_nexthop_ll
, "ip",
6632 &attr
->mp_nexthop_local
, buf
,
6634 json_object_string_add(json_nexthop_ll
, "afi",
6636 json_object_string_add(json_nexthop_ll
, "scope",
6639 if ((IPV6_ADDR_CMP(&attr
->mp_nexthop_global
,
6640 &attr
->mp_nexthop_local
)
6642 && !attr
->mp_nexthop_prefer_global
)
6643 json_object_boolean_true_add(
6644 json_nexthop_ll
, "used");
6646 json_object_boolean_true_add(
6647 json_nexthop_global
, "used");
6649 json_object_boolean_true_add(
6650 json_nexthop_global
, "used");
6652 /* Display LL if LL/Global both in table unless
6653 * prefer-global is set */
6654 if (((attr
->mp_nexthop_len
== 32)
6655 && !attr
->mp_nexthop_prefer_global
)
6656 || (path
->peer
->conf_if
)) {
6657 if (path
->peer
->conf_if
) {
6658 len
= vty_out(vty
, "%s",
6659 path
->peer
->conf_if
);
6660 len
= 16 - len
; /* len of IPv6
6666 vty_out(vty
, "\n%*s", 36, " ");
6668 vty_out(vty
, "%*s", len
, " ");
6674 &attr
->mp_nexthop_local
,
6680 vty_out(vty
, "\n%*s", 36, " ");
6682 vty_out(vty
, "%*s", len
, " ");
6688 &attr
->mp_nexthop_global
, buf
,
6694 vty_out(vty
, "\n%*s", 36, " ");
6696 vty_out(vty
, "%*s", len
, " ");
6702 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
))
6704 json_object_int_add(json_path
, "med", attr
->med
);
6706 vty_out(vty
, "%10u", attr
->med
);
6707 else if (!json_paths
)
6711 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
))
6713 json_object_int_add(json_path
, "localpref",
6716 vty_out(vty
, "%7u", attr
->local_pref
);
6717 else if (!json_paths
)
6721 json_object_int_add(json_path
, "weight", attr
->weight
);
6723 vty_out(vty
, "%7u ", attr
->weight
);
6727 json_object_string_add(
6728 json_path
, "peerId",
6729 sockunion2str(&path
->peer
->su
, buf
, SU_ADDRSTRLEN
));
6735 json_object_string_add(json_path
, "aspath",
6738 aspath_print_vty(vty
, "%s", attr
->aspath
, " ");
6743 json_object_string_add(json_path
, "origin",
6744 bgp_origin_long_str
[attr
->origin
]);
6746 vty_out(vty
, "%s", bgp_origin_str
[attr
->origin
]);
6750 json_object_boolean_true_add(json_path
,
6751 "announceNexthopSelf");
6752 if (nexthop_othervrf
) {
6753 json_object_string_add(json_path
, "nhVrfName",
6756 json_object_int_add(json_path
, "nhVrfId",
6757 ((nexthop_vrfid
== VRF_UNKNOWN
)
6759 : (int)nexthop_vrfid
));
6764 if (json_nexthop_global
|| json_nexthop_ll
) {
6765 json_nexthops
= json_object_new_array();
6767 if (json_nexthop_global
)
6768 json_object_array_add(json_nexthops
,
6769 json_nexthop_global
);
6771 if (json_nexthop_ll
)
6772 json_object_array_add(json_nexthops
,
6775 json_object_object_add(json_path
, "nexthops",
6779 json_object_array_add(json_paths
, json_path
);
6783 /* prints an additional line, indented, with VNC info, if
6785 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_ENCAP
))
6786 rfapi_vty_out_vncinfo(vty
, p
, path
, safi
);
6791 /* called from terminal list command */
6792 void route_vty_out_tmp(struct vty
*vty
, struct prefix
*p
, struct attr
*attr
,
6793 safi_t safi
, bool use_json
, json_object
*json_ar
)
6795 json_object
*json_status
= NULL
;
6796 json_object
*json_net
= NULL
;
6798 /* Route status display. */
6800 json_status
= json_object_new_object();
6801 json_net
= json_object_new_object();
6808 /* print prefix and mask */
6810 json_object_string_add(
6811 json_net
, "addrPrefix",
6812 inet_ntop(p
->family
, &p
->u
.prefix
, buff
, BUFSIZ
));
6814 route_vty_out_route(p
, vty
, NULL
);
6816 /* Print attribute */
6819 if (p
->family
== AF_INET
6820 && (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
6821 || safi
== SAFI_EVPN
6822 || !BGP_ATTR_NEXTHOP_AFI_IP6(attr
))) {
6823 if (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
6824 || safi
== SAFI_EVPN
)
6825 json_object_string_add(
6826 json_net
, "nextHop",
6828 attr
->mp_nexthop_global_in
));
6830 json_object_string_add(
6831 json_net
, "nextHop",
6832 inet_ntoa(attr
->nexthop
));
6833 } else if (p
->family
== AF_INET6
6834 || BGP_ATTR_NEXTHOP_AFI_IP6(attr
)) {
6837 json_object_string_add(
6838 json_net
, "netHopGloabal",
6840 &attr
->mp_nexthop_global
, buf
,
6845 & ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
))
6846 json_object_int_add(json_net
, "metric",
6849 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
))
6850 json_object_int_add(json_net
, "localPref",
6853 json_object_int_add(json_net
, "weight", attr
->weight
);
6857 json_object_string_add(json_net
, "asPath",
6861 json_object_string_add(json_net
, "bgpOriginCode",
6862 bgp_origin_str
[attr
->origin
]);
6864 if (p
->family
== AF_INET
6865 && (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
6866 || safi
== SAFI_EVPN
6867 || !BGP_ATTR_NEXTHOP_AFI_IP6(attr
))) {
6868 if (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
6869 || safi
== SAFI_EVPN
)
6870 vty_out(vty
, "%-16s",
6872 attr
->mp_nexthop_global_in
));
6874 vty_out(vty
, "%-16s",
6875 inet_ntoa(attr
->nexthop
));
6876 } else if (p
->family
== AF_INET6
6877 || BGP_ATTR_NEXTHOP_AFI_IP6(attr
)) {
6884 &attr
->mp_nexthop_global
, buf
,
6888 vty_out(vty
, "\n%*s", 36, " ");
6890 vty_out(vty
, "%*s", len
, " ");
6893 & ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
))
6894 vty_out(vty
, "%10u", attr
->med
);
6898 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
))
6899 vty_out(vty
, "%7u", attr
->local_pref
);
6903 vty_out(vty
, "%7u ", attr
->weight
);
6907 aspath_print_vty(vty
, "%s", attr
->aspath
, " ");
6910 vty_out(vty
, "%s", bgp_origin_str
[attr
->origin
]);
6914 json_object_boolean_true_add(json_status
, "*");
6915 json_object_boolean_true_add(json_status
, ">");
6916 json_object_object_add(json_net
, "appliedStatusSymbols",
6918 char buf_cut
[BUFSIZ
];
6919 json_object_object_add(
6921 inet_ntop(p
->family
, &p
->u
.prefix
, buf_cut
, BUFSIZ
),
6927 void route_vty_out_tag(struct vty
*vty
, struct prefix
*p
,
6928 struct bgp_path_info
*path
, int display
, safi_t safi
,
6931 json_object
*json_out
= NULL
;
6933 mpls_label_t label
= MPLS_INVALID_LABEL
;
6939 json_out
= json_object_new_object();
6941 /* short status lead text */
6942 route_vty_short_status_out(vty
, path
, json_out
);
6944 /* print prefix and mask */
6947 route_vty_out_route(p
, vty
, NULL
);
6949 vty_out(vty
, "%*s", 17, " ");
6952 /* Print attribute */
6955 if (((p
->family
== AF_INET
)
6956 && ((safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
)))
6957 || (safi
== SAFI_EVPN
&& !BGP_ATTR_NEXTHOP_AFI_IP6(attr
))
6958 || (!BGP_ATTR_NEXTHOP_AFI_IP6(attr
))) {
6959 if (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
6960 || safi
== SAFI_EVPN
) {
6962 json_object_string_add(
6963 json_out
, "mpNexthopGlobalIn",
6965 attr
->mp_nexthop_global_in
));
6967 vty_out(vty
, "%-16s",
6969 attr
->mp_nexthop_global_in
));
6972 json_object_string_add(
6973 json_out
, "nexthop",
6974 inet_ntoa(attr
->nexthop
));
6976 vty_out(vty
, "%-16s",
6977 inet_ntoa(attr
->nexthop
));
6979 } else if (((p
->family
== AF_INET6
)
6980 && ((safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
)))
6981 || (safi
== SAFI_EVPN
6982 && BGP_ATTR_NEXTHOP_AFI_IP6(attr
))
6983 || (BGP_ATTR_NEXTHOP_AFI_IP6(attr
))) {
6987 if (attr
->mp_nexthop_len
6988 == BGP_ATTR_NHLEN_IPV6_GLOBAL
) {
6990 json_object_string_add(
6991 json_out
, "mpNexthopGlobalIn",
6994 &attr
->mp_nexthop_global
,
6995 buf_a
, sizeof(buf_a
)));
7000 &attr
->mp_nexthop_global
,
7001 buf_a
, sizeof(buf_a
)));
7002 } else if (attr
->mp_nexthop_len
7003 == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL
) {
7006 &attr
->mp_nexthop_global
,
7007 buf_a
, sizeof(buf_a
));
7009 &attr
->mp_nexthop_local
,
7010 buf_b
, sizeof(buf_b
));
7011 sprintf(buf_c
, "%s(%s)", buf_a
, buf_b
);
7012 json_object_string_add(
7014 "mpNexthopGlobalLocal", buf_c
);
7016 vty_out(vty
, "%s(%s)",
7019 &attr
->mp_nexthop_global
,
7020 buf_a
, sizeof(buf_a
)),
7023 &attr
->mp_nexthop_local
,
7024 buf_b
, sizeof(buf_b
)));
7029 label
= decode_label(&path
->extra
->label
[0]);
7031 if (bgp_is_valid_label(&label
)) {
7033 json_object_int_add(json_out
, "notag", label
);
7034 json_object_array_add(json
, json_out
);
7036 vty_out(vty
, "notag/%d", label
);
7042 void route_vty_out_overlay(struct vty
*vty
, struct prefix
*p
,
7043 struct bgp_path_info
*path
, int display
,
7044 json_object
*json_paths
)
7048 json_object
*json_path
= NULL
;
7051 json_path
= json_object_new_object();
7056 /* short status lead text */
7057 route_vty_short_status_out(vty
, path
, json_path
);
7059 /* print prefix and mask */
7061 route_vty_out_route(p
, vty
, NULL
);
7063 vty_out(vty
, "%*s", 17, " ");
7065 /* Print attribute */
7069 int af
= NEXTHOP_FAMILY(attr
->mp_nexthop_len
);
7073 vty_out(vty
, "%-16s",
7074 inet_ntop(af
, &attr
->mp_nexthop_global_in
, buf
,
7078 vty_out(vty
, "%s(%s)",
7079 inet_ntop(af
, &attr
->mp_nexthop_global
, buf
,
7081 inet_ntop(af
, &attr
->mp_nexthop_local
, buf1
,
7088 char *str
= esi2str(&(attr
->evpn_overlay
.eth_s_id
));
7090 vty_out(vty
, "%s", str
);
7091 XFREE(MTYPE_TMP
, str
);
7093 if (is_evpn_prefix_ipaddr_v4((struct prefix_evpn
*)p
)) {
7095 inet_ntoa(attr
->evpn_overlay
.gw_ip
.ipv4
));
7096 } else if (is_evpn_prefix_ipaddr_v6((struct prefix_evpn
*)p
)) {
7099 &(attr
->evpn_overlay
.gw_ip
.ipv6
), buf
,
7102 if (attr
->ecommunity
) {
7104 struct ecommunity_val
*routermac
= ecommunity_lookup(
7105 attr
->ecommunity
, ECOMMUNITY_ENCODE_EVPN
,
7106 ECOMMUNITY_EVPN_SUBTYPE_ROUTERMAC
);
7108 mac
= ecom_mac2str((char *)routermac
->val
);
7110 vty_out(vty
, "/%s", (char *)mac
);
7111 XFREE(MTYPE_TMP
, mac
);
7119 /* dampening route */
7120 static void damp_route_vty_out(struct vty
*vty
, struct prefix
*p
,
7121 struct bgp_path_info
*path
, int display
,
7122 safi_t safi
, bool use_json
, json_object
*json
)
7126 char timebuf
[BGP_UPTIME_LEN
];
7128 /* short status lead text */
7129 route_vty_short_status_out(vty
, path
, json
);
7131 /* print prefix and mask */
7134 route_vty_out_route(p
, vty
, NULL
);
7136 vty_out(vty
, "%*s", 17, " ");
7139 len
= vty_out(vty
, "%s", path
->peer
->host
);
7143 vty_out(vty
, "\n%*s", 34, " ");
7146 json_object_int_add(json
, "peerHost", len
);
7148 vty_out(vty
, "%*s", len
, " ");
7152 bgp_damp_reuse_time_vty(vty
, path
, timebuf
, BGP_UPTIME_LEN
,
7156 bgp_damp_reuse_time_vty(vty
, path
, timebuf
,
7157 BGP_UPTIME_LEN
, use_json
,
7160 /* Print attribute */
7166 json_object_string_add(json
, "asPath",
7169 aspath_print_vty(vty
, "%s", attr
->aspath
, " ");
7174 json_object_string_add(json
, "origin",
7175 bgp_origin_str
[attr
->origin
]);
7177 vty_out(vty
, "%s", bgp_origin_str
[attr
->origin
]);
7184 static void flap_route_vty_out(struct vty
*vty
, struct prefix
*p
,
7185 struct bgp_path_info
*path
, int display
,
7186 safi_t safi
, bool use_json
, json_object
*json
)
7189 struct bgp_damp_info
*bdi
;
7190 char timebuf
[BGP_UPTIME_LEN
];
7196 bdi
= path
->extra
->damp_info
;
7198 /* short status lead text */
7199 route_vty_short_status_out(vty
, path
, json
);
7201 /* print prefix and mask */
7204 route_vty_out_route(p
, vty
, NULL
);
7206 vty_out(vty
, "%*s", 17, " ");
7209 len
= vty_out(vty
, "%s", path
->peer
->host
);
7213 vty_out(vty
, "\n%*s", 33, " ");
7216 json_object_int_add(json
, "peerHost", len
);
7218 vty_out(vty
, "%*s", len
, " ");
7221 len
= vty_out(vty
, "%d", bdi
->flap
);
7228 json_object_int_add(json
, "bdiFlap", len
);
7230 vty_out(vty
, "%*s", len
, " ");
7234 peer_uptime(bdi
->start_time
, timebuf
, BGP_UPTIME_LEN
, use_json
,
7237 vty_out(vty
, "%s ", peer_uptime(bdi
->start_time
, timebuf
,
7238 BGP_UPTIME_LEN
, 0, NULL
));
7240 if (CHECK_FLAG(path
->flags
, BGP_PATH_DAMPED
)
7241 && !CHECK_FLAG(path
->flags
, BGP_PATH_HISTORY
)) {
7243 bgp_damp_reuse_time_vty(vty
, path
, timebuf
,
7244 BGP_UPTIME_LEN
, use_json
, json
);
7247 bgp_damp_reuse_time_vty(vty
, path
, timebuf
,
7252 vty_out(vty
, "%*s ", 8, " ");
7255 /* Print attribute */
7261 json_object_string_add(json
, "asPath",
7264 aspath_print_vty(vty
, "%s", attr
->aspath
, " ");
7269 json_object_string_add(json
, "origin",
7270 bgp_origin_str
[attr
->origin
]);
7272 vty_out(vty
, "%s", bgp_origin_str
[attr
->origin
]);
7278 static void route_vty_out_advertised_to(struct vty
*vty
, struct peer
*peer
,
7279 int *first
, const char *header
,
7280 json_object
*json_adv_to
)
7282 char buf1
[INET6_ADDRSTRLEN
];
7283 json_object
*json_peer
= NULL
;
7286 /* 'advertised-to' is a dictionary of peers we have advertised
7288 * prefix too. The key is the peer's IP or swpX, the value is
7290 * hostname if we know it and "" if not.
7292 json_peer
= json_object_new_object();
7295 json_object_string_add(json_peer
, "hostname",
7299 json_object_object_add(json_adv_to
, peer
->conf_if
,
7302 json_object_object_add(
7304 sockunion2str(&peer
->su
, buf1
, SU_ADDRSTRLEN
),
7308 vty_out(vty
, "%s", header
);
7313 && bgp_flag_check(peer
->bgp
, BGP_FLAG_SHOW_HOSTNAME
)) {
7315 vty_out(vty
, " %s(%s)", peer
->hostname
,
7318 vty_out(vty
, " %s(%s)", peer
->hostname
,
7319 sockunion2str(&peer
->su
, buf1
,
7323 vty_out(vty
, " %s", peer
->conf_if
);
7326 sockunion2str(&peer
->su
, buf1
,
7332 void route_vty_out_detail(struct vty
*vty
, struct bgp
*bgp
, struct prefix
*p
,
7333 struct bgp_path_info
*path
, afi_t afi
, safi_t safi
,
7334 json_object
*json_paths
)
7336 char buf
[INET6_ADDRSTRLEN
];
7338 char buf2
[EVPN_ROUTE_STRLEN
];
7340 int sockunion_vty_out(struct vty
*, union sockunion
*);
7342 json_object
*json_bestpath
= NULL
;
7343 json_object
*json_cluster_list
= NULL
;
7344 json_object
*json_cluster_list_list
= NULL
;
7345 json_object
*json_ext_community
= NULL
;
7346 json_object
*json_last_update
= NULL
;
7347 json_object
*json_pmsi
= NULL
;
7348 json_object
*json_nexthop_global
= NULL
;
7349 json_object
*json_nexthop_ll
= NULL
;
7350 json_object
*json_nexthops
= NULL
;
7351 json_object
*json_path
= NULL
;
7352 json_object
*json_peer
= NULL
;
7353 json_object
*json_string
= NULL
;
7354 json_object
*json_adv_to
= NULL
;
7356 struct listnode
*node
, *nnode
;
7358 int addpath_capable
;
7360 unsigned int first_as
;
7362 CHECK_FLAG(path
->flags
, BGP_PATH_ANNC_NH_SELF
) ? true : false;
7365 json_path
= json_object_new_object();
7366 json_peer
= json_object_new_object();
7367 json_nexthop_global
= json_object_new_object();
7370 if (!json_paths
&& safi
== SAFI_EVPN
) {
7373 bgp_evpn_route2str((struct prefix_evpn
*)p
, buf2
, sizeof(buf2
));
7374 vty_out(vty
, " Route %s", buf2
);
7376 if (path
->extra
&& path
->extra
->num_labels
) {
7377 bgp_evpn_label2str(path
->extra
->label
,
7378 path
->extra
->num_labels
, tag_buf
,
7380 vty_out(vty
, " VNI %s", tag_buf
);
7383 if (path
->extra
&& path
->extra
->parent
) {
7384 struct bgp_path_info
*parent_ri
;
7385 struct bgp_node
*rn
, *prn
;
7387 parent_ri
= (struct bgp_path_info
*)path
->extra
->parent
;
7388 rn
= parent_ri
->net
;
7389 if (rn
&& rn
->prn
) {
7391 vty_out(vty
, " Imported from %s:%s\n",
7393 (struct prefix_rd
*)&prn
->p
,
7394 buf1
, sizeof(buf1
)),
7403 /* Line1 display AS-path, Aggregator */
7406 if (!attr
->aspath
->json
)
7407 aspath_str_update(attr
->aspath
, true);
7408 json_object_lock(attr
->aspath
->json
);
7409 json_object_object_add(json_path
, "aspath",
7410 attr
->aspath
->json
);
7412 if (attr
->aspath
->segments
)
7413 aspath_print_vty(vty
, " %s",
7416 vty_out(vty
, " Local");
7420 if (CHECK_FLAG(path
->flags
, BGP_PATH_REMOVED
)) {
7422 json_object_boolean_true_add(json_path
,
7425 vty_out(vty
, ", (removed)");
7428 if (CHECK_FLAG(path
->flags
, BGP_PATH_STALE
)) {
7430 json_object_boolean_true_add(json_path
,
7433 vty_out(vty
, ", (stale)");
7436 if (CHECK_FLAG(attr
->flag
,
7437 ATTR_FLAG_BIT(BGP_ATTR_AGGREGATOR
))) {
7439 json_object_int_add(json_path
, "aggregatorAs",
7440 attr
->aggregator_as
);
7441 json_object_string_add(
7442 json_path
, "aggregatorId",
7443 inet_ntoa(attr
->aggregator_addr
));
7445 vty_out(vty
, ", (aggregated by %u %s)",
7446 attr
->aggregator_as
,
7447 inet_ntoa(attr
->aggregator_addr
));
7451 if (CHECK_FLAG(path
->peer
->af_flags
[afi
][safi
],
7452 PEER_FLAG_REFLECTOR_CLIENT
)) {
7454 json_object_boolean_true_add(
7455 json_path
, "rxedFromRrClient");
7457 vty_out(vty
, ", (Received from a RR-client)");
7460 if (CHECK_FLAG(path
->peer
->af_flags
[afi
][safi
],
7461 PEER_FLAG_RSERVER_CLIENT
)) {
7463 json_object_boolean_true_add(
7464 json_path
, "rxedFromRsClient");
7466 vty_out(vty
, ", (Received from a RS-client)");
7469 if (CHECK_FLAG(path
->flags
, BGP_PATH_HISTORY
)) {
7471 json_object_boolean_true_add(
7472 json_path
, "dampeningHistoryEntry");
7474 vty_out(vty
, ", (history entry)");
7475 } else if (CHECK_FLAG(path
->flags
, BGP_PATH_DAMPED
)) {
7477 json_object_boolean_true_add(
7478 json_path
, "dampeningSuppressed");
7480 vty_out(vty
, ", (suppressed due to dampening)");
7486 /* Line2 display Next-hop, Neighbor, Router-id */
7487 /* Display the nexthop */
7488 if ((p
->family
== AF_INET
|| p
->family
== AF_ETHERNET
7489 || p
->family
== AF_EVPN
)
7490 && (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
7491 || safi
== SAFI_EVPN
7492 || !BGP_ATTR_NEXTHOP_AFI_IP6(attr
))) {
7493 if (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
7494 || safi
== SAFI_EVPN
) {
7496 json_object_string_add(
7497 json_nexthop_global
, "ip",
7499 attr
->mp_nexthop_global_in
));
7503 attr
->mp_nexthop_global_in
));
7506 json_object_string_add(
7507 json_nexthop_global
, "ip",
7508 inet_ntoa(attr
->nexthop
));
7511 inet_ntoa(attr
->nexthop
));
7515 json_object_string_add(json_nexthop_global
,
7519 json_object_string_add(
7520 json_nexthop_global
, "ip",
7522 &attr
->mp_nexthop_global
, buf
,
7524 json_object_string_add(json_nexthop_global
,
7526 json_object_string_add(json_nexthop_global
,
7531 &attr
->mp_nexthop_global
, buf
,
7536 /* Display the IGP cost or 'inaccessible' */
7537 if (!CHECK_FLAG(path
->flags
, BGP_PATH_VALID
)) {
7539 json_object_boolean_false_add(
7540 json_nexthop_global
, "accessible");
7542 vty_out(vty
, " (inaccessible)");
7544 if (path
->extra
&& path
->extra
->igpmetric
) {
7546 json_object_int_add(
7547 json_nexthop_global
, "metric",
7548 path
->extra
->igpmetric
);
7550 vty_out(vty
, " (metric %u)",
7551 path
->extra
->igpmetric
);
7554 /* IGP cost is 0, display this only for json */
7557 json_object_int_add(json_nexthop_global
,
7562 json_object_boolean_true_add(
7563 json_nexthop_global
, "accessible");
7566 /* Display peer "from" output */
7567 /* This path was originated locally */
7568 if (path
->peer
== bgp
->peer_self
) {
7570 if (safi
== SAFI_EVPN
7571 || (p
->family
== AF_INET
7572 && !BGP_ATTR_NEXTHOP_AFI_IP6(attr
))) {
7574 json_object_string_add(
7575 json_peer
, "peerId", "0.0.0.0");
7577 vty_out(vty
, " from 0.0.0.0 ");
7580 json_object_string_add(json_peer
,
7583 vty_out(vty
, " from :: ");
7587 json_object_string_add(
7588 json_peer
, "routerId",
7589 inet_ntoa(bgp
->router_id
));
7591 vty_out(vty
, "(%s)", inet_ntoa(bgp
->router_id
));
7594 /* We RXed this path from one of our peers */
7598 json_object_string_add(
7599 json_peer
, "peerId",
7600 sockunion2str(&path
->peer
->su
, buf
,
7602 json_object_string_add(
7603 json_peer
, "routerId",
7605 &path
->peer
->remote_id
, buf1
,
7608 if (path
->peer
->hostname
)
7609 json_object_string_add(
7610 json_peer
, "hostname",
7611 path
->peer
->hostname
);
7613 if (path
->peer
->domainname
)
7614 json_object_string_add(
7615 json_peer
, "domainname",
7616 path
->peer
->domainname
);
7618 if (path
->peer
->conf_if
)
7619 json_object_string_add(
7620 json_peer
, "interface",
7621 path
->peer
->conf_if
);
7623 if (path
->peer
->conf_if
) {
7624 if (path
->peer
->hostname
7627 BGP_FLAG_SHOW_HOSTNAME
))
7628 vty_out(vty
, " from %s(%s)",
7629 path
->peer
->hostname
,
7630 path
->peer
->conf_if
);
7632 vty_out(vty
, " from %s",
7633 path
->peer
->conf_if
);
7635 if (path
->peer
->hostname
7638 BGP_FLAG_SHOW_HOSTNAME
))
7639 vty_out(vty
, " from %s(%s)",
7640 path
->peer
->hostname
,
7643 vty_out(vty
, " from %s",
7651 & ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID
))
7652 vty_out(vty
, " (%s)",
7653 inet_ntoa(attr
->originator_id
));
7655 vty_out(vty
, " (%s)",
7658 &path
->peer
->remote_id
,
7659 buf1
, sizeof(buf1
)));
7664 * Note when vrfid of nexthop is different from that of prefix
7666 if (path
->extra
&& path
->extra
->bgp_orig
) {
7667 vrf_id_t nexthop_vrfid
= path
->extra
->bgp_orig
->vrf_id
;
7672 if (path
->extra
->bgp_orig
->inst_type
7673 == BGP_INSTANCE_TYPE_DEFAULT
)
7677 vn
= path
->extra
->bgp_orig
->name
;
7679 json_object_string_add(json_path
, "nhVrfName",
7682 if (nexthop_vrfid
== VRF_UNKNOWN
) {
7683 json_object_int_add(json_path
,
7686 json_object_int_add(json_path
,
7687 "nhVrfId", (int)nexthop_vrfid
);
7690 if (nexthop_vrfid
== VRF_UNKNOWN
)
7691 vty_out(vty
, " vrf ?");
7693 vty_out(vty
, " vrf %u", nexthop_vrfid
);
7699 json_object_boolean_true_add(json_path
,
7700 "announceNexthopSelf");
7702 vty_out(vty
, " announce-nh-self");
7709 /* display the link-local nexthop */
7710 if (attr
->mp_nexthop_len
== BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL
) {
7712 json_nexthop_ll
= json_object_new_object();
7713 json_object_string_add(
7714 json_nexthop_ll
, "ip",
7716 &attr
->mp_nexthop_local
, buf
,
7718 json_object_string_add(json_nexthop_ll
, "afi",
7720 json_object_string_add(json_nexthop_ll
, "scope",
7723 json_object_boolean_true_add(json_nexthop_ll
,
7726 if (!attr
->mp_nexthop_prefer_global
)
7727 json_object_boolean_true_add(
7728 json_nexthop_ll
, "used");
7730 json_object_boolean_true_add(
7731 json_nexthop_global
, "used");
7733 vty_out(vty
, " (%s) %s\n",
7735 &attr
->mp_nexthop_local
, buf
,
7737 attr
->mp_nexthop_prefer_global
7742 /* If we do not have a link-local nexthop then we must flag the
7746 json_object_boolean_true_add(
7747 json_nexthop_global
, "used");
7750 /* Line 3 display Origin, Med, Locpref, Weight, Tag, valid,
7751 * Int/Ext/Local, Atomic, best */
7753 json_object_string_add(
7754 json_path
, "origin",
7755 bgp_origin_long_str
[attr
->origin
]);
7757 vty_out(vty
, " Origin %s",
7758 bgp_origin_long_str
[attr
->origin
]);
7760 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
)) {
7762 json_object_int_add(json_path
, "med",
7765 vty_out(vty
, ", metric %u", attr
->med
);
7768 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
)) {
7770 json_object_int_add(json_path
, "localpref",
7773 vty_out(vty
, ", localpref %u",
7777 if (attr
->weight
!= 0) {
7779 json_object_int_add(json_path
, "weight",
7782 vty_out(vty
, ", weight %u", attr
->weight
);
7785 if (attr
->tag
!= 0) {
7787 json_object_int_add(json_path
, "tag",
7790 vty_out(vty
, ", tag %" ROUTE_TAG_PRI
,
7794 if (!CHECK_FLAG(path
->flags
, BGP_PATH_VALID
)) {
7796 json_object_boolean_false_add(json_path
,
7799 vty_out(vty
, ", invalid");
7800 } else if (!CHECK_FLAG(path
->flags
, BGP_PATH_HISTORY
)) {
7802 json_object_boolean_true_add(json_path
,
7805 vty_out(vty
, ", valid");
7808 if (path
->peer
!= bgp
->peer_self
) {
7809 if (path
->peer
->as
== path
->peer
->local_as
) {
7810 if (CHECK_FLAG(bgp
->config
,
7811 BGP_CONFIG_CONFEDERATION
)) {
7813 json_object_string_add(
7818 ", confed-internal");
7821 json_object_string_add(
7825 vty_out(vty
, ", internal");
7828 if (bgp_confederation_peers_check(
7829 bgp
, path
->peer
->as
)) {
7831 json_object_string_add(
7836 ", confed-external");
7839 json_object_string_add(
7843 vty_out(vty
, ", external");
7846 } else if (path
->sub_type
== BGP_ROUTE_AGGREGATE
) {
7848 json_object_boolean_true_add(json_path
,
7850 json_object_boolean_true_add(json_path
,
7853 vty_out(vty
, ", aggregated, local");
7855 } else if (path
->type
!= ZEBRA_ROUTE_BGP
) {
7857 json_object_boolean_true_add(json_path
,
7860 vty_out(vty
, ", sourced");
7863 json_object_boolean_true_add(json_path
,
7865 json_object_boolean_true_add(json_path
,
7868 vty_out(vty
, ", sourced, local");
7872 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_ATOMIC_AGGREGATE
)) {
7874 json_object_boolean_true_add(json_path
,
7877 vty_out(vty
, ", atomic-aggregate");
7880 if (CHECK_FLAG(path
->flags
, BGP_PATH_MULTIPATH
)
7881 || (CHECK_FLAG(path
->flags
, BGP_PATH_SELECTED
)
7882 && bgp_path_info_mpath_count(path
))) {
7884 json_object_boolean_true_add(json_path
,
7887 vty_out(vty
, ", multipath");
7890 // Mark the bestpath(s)
7891 if (CHECK_FLAG(path
->flags
, BGP_PATH_DMED_SELECTED
)) {
7892 first_as
= aspath_get_first_as(attr
->aspath
);
7897 json_object_new_object();
7898 json_object_int_add(json_bestpath
,
7899 "bestpathFromAs", first_as
);
7902 vty_out(vty
, ", bestpath-from-AS %u",
7906 ", bestpath-from-AS Local");
7910 if (CHECK_FLAG(path
->flags
, BGP_PATH_SELECTED
)) {
7914 json_object_new_object();
7915 json_object_boolean_true_add(json_bestpath
,
7918 vty_out(vty
, ", best");
7922 json_object_object_add(json_path
, "bestpath",
7928 /* Line 4 display Community */
7929 if (attr
->community
) {
7931 if (!attr
->community
->json
)
7932 community_str(attr
->community
, true);
7933 json_object_lock(attr
->community
->json
);
7934 json_object_object_add(json_path
, "community",
7935 attr
->community
->json
);
7937 vty_out(vty
, " Community: %s\n",
7938 attr
->community
->str
);
7942 /* Line 5 display Extended-community */
7943 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_EXT_COMMUNITIES
)) {
7945 json_ext_community
= json_object_new_object();
7946 json_object_string_add(json_ext_community
,
7948 attr
->ecommunity
->str
);
7949 json_object_object_add(json_path
,
7950 "extendedCommunity",
7951 json_ext_community
);
7953 vty_out(vty
, " Extended Community: %s\n",
7954 attr
->ecommunity
->str
);
7958 /* Line 6 display Large community */
7959 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_LARGE_COMMUNITIES
)) {
7961 if (!attr
->lcommunity
->json
)
7962 lcommunity_str(attr
->lcommunity
, true);
7963 json_object_lock(attr
->lcommunity
->json
);
7964 json_object_object_add(json_path
,
7966 attr
->lcommunity
->json
);
7968 vty_out(vty
, " Large Community: %s\n",
7969 attr
->lcommunity
->str
);
7973 /* Line 7 display Originator, Cluster-id */
7974 if ((attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID
))
7975 || (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_CLUSTER_LIST
))) {
7977 & ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID
)) {
7979 json_object_string_add(
7980 json_path
, "originatorId",
7981 inet_ntoa(attr
->originator_id
));
7983 vty_out(vty
, " Originator: %s",
7984 inet_ntoa(attr
->originator_id
));
7987 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_CLUSTER_LIST
)) {
7992 json_object_new_object();
7993 json_cluster_list_list
=
7994 json_object_new_array();
7997 i
< attr
->cluster
->length
/ 4;
7999 json_string
= json_object_new_string(
8003 json_object_array_add(
8004 json_cluster_list_list
,
8008 /* struct cluster_list does not have
8010 * aspath and community do. Add this
8013 json_object_string_add(json_cluster_list,
8014 "string", attr->cluster->str);
8016 json_object_object_add(
8017 json_cluster_list
, "list",
8018 json_cluster_list_list
);
8019 json_object_object_add(
8020 json_path
, "clusterList",
8023 vty_out(vty
, ", Cluster list: ");
8026 i
< attr
->cluster
->length
/ 4;
8040 if (path
->extra
&& path
->extra
->damp_info
)
8041 bgp_damp_info_vty(vty
, path
, json_path
);
8044 if (path
->extra
&& bgp_is_valid_label(&path
->extra
->label
[0])
8045 && safi
!= SAFI_EVPN
) {
8046 mpls_label_t label
= label_pton(&path
->extra
->label
[0]);
8049 json_object_int_add(json_path
, "remoteLabel",
8052 vty_out(vty
, " Remote label: %d\n", label
);
8056 if (attr
->label_index
!= BGP_INVALID_LABEL_INDEX
) {
8058 json_object_int_add(json_path
, "labelIndex",
8061 vty_out(vty
, " Label Index: %d\n",
8065 /* Line 8 display Addpath IDs */
8066 if (path
->addpath_rx_id
|| path
->addpath_tx_id
) {
8068 json_object_int_add(json_path
, "addpathRxId",
8069 path
->addpath_rx_id
);
8070 json_object_int_add(json_path
, "addpathTxId",
8071 path
->addpath_tx_id
);
8073 vty_out(vty
, " AddPath ID: RX %u, TX %u\n",
8074 path
->addpath_rx_id
,
8075 path
->addpath_tx_id
);
8079 /* If we used addpath to TX a non-bestpath we need to display
8080 * "Advertised to" on a path-by-path basis */
8081 if (bgp
->addpath_tx_used
[afi
][safi
]) {
8084 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
8086 bgp_addpath_encode_tx(peer
, afi
, safi
);
8087 has_adj
= bgp_adj_out_lookup(
8088 peer
, path
->net
, path
->addpath_tx_id
);
8090 if ((addpath_capable
&& has_adj
)
8091 || (!addpath_capable
&& has_adj
8092 && CHECK_FLAG(path
->flags
,
8093 BGP_PATH_SELECTED
))) {
8094 if (json_path
&& !json_adv_to
)
8096 json_object_new_object();
8098 route_vty_out_advertised_to(
8107 json_object_object_add(json_path
,
8118 /* Line 9 display Uptime */
8119 tbuf
= time(NULL
) - (bgp_clock() - path
->uptime
);
8121 json_last_update
= json_object_new_object();
8122 json_object_int_add(json_last_update
, "epoch", tbuf
);
8123 json_object_string_add(json_last_update
, "string",
8125 json_object_object_add(json_path
, "lastUpdate",
8128 vty_out(vty
, " Last update: %s", ctime(&tbuf
));
8130 /* Line 10 display PMSI tunnel attribute, if present */
8131 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_PMSI_TUNNEL
)) {
8132 const char *str
= lookup_msg(bgp_pmsi_tnltype_str
,
8133 attr
->pmsi_tnl_type
,
8134 PMSI_TNLTYPE_STR_DEFAULT
);
8137 json_pmsi
= json_object_new_object();
8138 json_object_string_add(json_pmsi
,
8140 json_object_object_add(json_path
, "pmsi",
8143 vty_out(vty
, " PMSI Tunnel Type: %s\n",
8149 /* We've constructed the json object for this path, add it to the json
8153 if (json_nexthop_global
|| json_nexthop_ll
) {
8154 json_nexthops
= json_object_new_array();
8156 if (json_nexthop_global
)
8157 json_object_array_add(json_nexthops
,
8158 json_nexthop_global
);
8160 if (json_nexthop_ll
)
8161 json_object_array_add(json_nexthops
,
8164 json_object_object_add(json_path
, "nexthops",
8168 json_object_object_add(json_path
, "peer", json_peer
);
8169 json_object_array_add(json_paths
, json_path
);
8174 #define BGP_SHOW_HEADER_CSV "Flags, Network, Next Hop, Metric, LocPrf, Weight, Path"
8175 #define BGP_SHOW_DAMP_HEADER " Network From Reuse Path\n"
8176 #define BGP_SHOW_FLAP_HEADER " Network From Flaps Duration Reuse Path\n"
8178 static int bgp_show_prefix_list(struct vty
*vty
, struct bgp
*bgp
,
8179 const char *prefix_list_str
, afi_t afi
,
8180 safi_t safi
, enum bgp_show_type type
);
8181 static int bgp_show_filter_list(struct vty
*vty
, struct bgp
*bgp
,
8182 const char *filter
, afi_t afi
, safi_t safi
,
8183 enum bgp_show_type type
);
8184 static int bgp_show_route_map(struct vty
*vty
, struct bgp
*bgp
,
8185 const char *rmap_str
, afi_t afi
, safi_t safi
,
8186 enum bgp_show_type type
);
8187 static int bgp_show_community_list(struct vty
*vty
, struct bgp
*bgp
,
8188 const char *com
, int exact
, afi_t afi
,
8190 static int bgp_show_prefix_longer(struct vty
*vty
, struct bgp
*bgp
,
8191 const char *prefix
, afi_t afi
, safi_t safi
,
8192 enum bgp_show_type type
);
8193 static int bgp_show_regexp(struct vty
*vty
, struct bgp
*bgp
, const char *regstr
,
8194 afi_t afi
, safi_t safi
, enum bgp_show_type type
);
8195 static int bgp_show_community(struct vty
*vty
, struct bgp
*bgp
,
8196 const char *comstr
, int exact
, afi_t afi
,
8197 safi_t safi
, bool use_json
);
8200 static int bgp_show_table(struct vty
*vty
, struct bgp
*bgp
, safi_t safi
,
8201 struct bgp_table
*table
, enum bgp_show_type type
,
8202 void *output_arg
, bool use_json
, char *rd
,
8203 int is_last
, unsigned long *output_cum
,
8204 unsigned long *total_cum
,
8205 unsigned long *json_header_depth
)
8207 struct bgp_path_info
*pi
;
8208 struct bgp_node
*rn
;
8211 unsigned long output_count
= 0;
8212 unsigned long total_count
= 0;
8216 json_object
*json_paths
= NULL
;
8219 if (output_cum
&& *output_cum
!= 0)
8222 if (use_json
&& !*json_header_depth
) {
8224 "{\n \"vrfId\": %d,\n \"vrfName\": \"%s\",\n \"tableVersion\": %" PRId64
8225 ",\n \"routerId\": \"%s\",\n \"routes\": { ",
8226 bgp
->vrf_id
== VRF_UNKNOWN
? -1 : (int)bgp
->vrf_id
,
8227 bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
? "Default"
8229 table
->version
, inet_ntoa(bgp
->router_id
));
8230 *json_header_depth
= 2;
8232 vty_out(vty
, " \"routeDistinguishers\" : {");
8233 ++*json_header_depth
;
8237 if (use_json
&& rd
) {
8238 vty_out(vty
, " \"%s\" : { ", rd
);
8241 /* Start processing of routes. */
8242 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
)) {
8243 if (rn
->info
== NULL
)
8248 json_paths
= json_object_new_array();
8252 for (pi
= rn
->info
; pi
; pi
= pi
->next
) {
8254 if (type
== bgp_show_type_flap_statistics
8255 || type
== bgp_show_type_flap_neighbor
8256 || type
== bgp_show_type_dampend_paths
8257 || type
== bgp_show_type_damp_neighbor
) {
8258 if (!(pi
->extra
&& pi
->extra
->damp_info
))
8261 if (type
== bgp_show_type_regexp
) {
8262 regex_t
*regex
= output_arg
;
8264 if (bgp_regexec(regex
, pi
->attr
->aspath
)
8268 if (type
== bgp_show_type_prefix_list
) {
8269 struct prefix_list
*plist
= output_arg
;
8271 if (prefix_list_apply(plist
, &rn
->p
)
8275 if (type
== bgp_show_type_filter_list
) {
8276 struct as_list
*as_list
= output_arg
;
8278 if (as_list_apply(as_list
, pi
->attr
->aspath
)
8279 != AS_FILTER_PERMIT
)
8282 if (type
== bgp_show_type_route_map
) {
8283 struct route_map
*rmap
= output_arg
;
8284 struct bgp_path_info path
;
8285 struct attr dummy_attr
;
8288 bgp_attr_dup(&dummy_attr
, pi
->attr
);
8290 path
.peer
= pi
->peer
;
8291 path
.attr
= &dummy_attr
;
8293 ret
= route_map_apply(rmap
, &rn
->p
, RMAP_BGP
,
8295 if (ret
== RMAP_DENYMATCH
)
8298 if (type
== bgp_show_type_neighbor
8299 || type
== bgp_show_type_flap_neighbor
8300 || type
== bgp_show_type_damp_neighbor
) {
8301 union sockunion
*su
= output_arg
;
8303 if (pi
->peer
== NULL
8304 || pi
->peer
->su_remote
== NULL
8305 || !sockunion_same(pi
->peer
->su_remote
, su
))
8308 if (type
== bgp_show_type_cidr_only
) {
8309 uint32_t destination
;
8311 destination
= ntohl(rn
->p
.u
.prefix4
.s_addr
);
8312 if (IN_CLASSC(destination
)
8313 && rn
->p
.prefixlen
== 24)
8315 if (IN_CLASSB(destination
)
8316 && rn
->p
.prefixlen
== 16)
8318 if (IN_CLASSA(destination
)
8319 && rn
->p
.prefixlen
== 8)
8322 if (type
== bgp_show_type_prefix_longer
) {
8324 if (!prefix_match(p
, &rn
->p
))
8327 if (type
== bgp_show_type_community_all
) {
8328 if (!pi
->attr
->community
)
8331 if (type
== bgp_show_type_community
) {
8332 struct community
*com
= output_arg
;
8334 if (!pi
->attr
->community
8335 || !community_match(pi
->attr
->community
,
8339 if (type
== bgp_show_type_community_exact
) {
8340 struct community
*com
= output_arg
;
8342 if (!pi
->attr
->community
8343 || !community_cmp(pi
->attr
->community
, com
))
8346 if (type
== bgp_show_type_community_list
) {
8347 struct community_list
*list
= output_arg
;
8349 if (!community_list_match(pi
->attr
->community
,
8353 if (type
== bgp_show_type_community_list_exact
) {
8354 struct community_list
*list
= output_arg
;
8356 if (!community_list_exact_match(
8357 pi
->attr
->community
, list
))
8360 if (type
== bgp_show_type_lcommunity
) {
8361 struct lcommunity
*lcom
= output_arg
;
8363 if (!pi
->attr
->lcommunity
8364 || !lcommunity_match(pi
->attr
->lcommunity
,
8368 if (type
== bgp_show_type_lcommunity_list
) {
8369 struct community_list
*list
= output_arg
;
8371 if (!lcommunity_list_match(pi
->attr
->lcommunity
,
8375 if (type
== bgp_show_type_lcommunity_all
) {
8376 if (!pi
->attr
->lcommunity
)
8379 if (type
== bgp_show_type_dampend_paths
8380 || type
== bgp_show_type_damp_neighbor
) {
8381 if (!CHECK_FLAG(pi
->flags
, BGP_PATH_DAMPED
)
8382 || CHECK_FLAG(pi
->flags
, BGP_PATH_HISTORY
))
8386 if (!use_json
&& header
) {
8387 vty_out(vty
, "BGP table version is %" PRIu64
8388 ", local router ID is %s, vrf id ",
8390 inet_ntoa(bgp
->router_id
));
8391 if (bgp
->vrf_id
== VRF_UNKNOWN
)
8392 vty_out(vty
, "%s", VRFID_NONE_STR
);
8394 vty_out(vty
, "%u", bgp
->vrf_id
);
8396 vty_out(vty
, BGP_SHOW_SCODE_HEADER
);
8397 vty_out(vty
, BGP_SHOW_NCODE_HEADER
);
8398 vty_out(vty
, BGP_SHOW_OCODE_HEADER
);
8399 if (type
== bgp_show_type_dampend_paths
8400 || type
== bgp_show_type_damp_neighbor
)
8401 vty_out(vty
, BGP_SHOW_DAMP_HEADER
);
8402 else if (type
== bgp_show_type_flap_statistics
8403 || type
== bgp_show_type_flap_neighbor
)
8404 vty_out(vty
, BGP_SHOW_FLAP_HEADER
);
8406 vty_out(vty
, BGP_SHOW_HEADER
);
8409 if (rd
!= NULL
&& !display
&& !output_count
) {
8412 "Route Distinguisher: %s\n",
8415 if (type
== bgp_show_type_dampend_paths
8416 || type
== bgp_show_type_damp_neighbor
)
8417 damp_route_vty_out(vty
, &rn
->p
, pi
, display
,
8418 safi
, use_json
, json_paths
);
8419 else if (type
== bgp_show_type_flap_statistics
8420 || type
== bgp_show_type_flap_neighbor
)
8421 flap_route_vty_out(vty
, &rn
->p
, pi
, display
,
8422 safi
, use_json
, json_paths
);
8424 route_vty_out(vty
, &rn
->p
, pi
, display
, safi
,
8435 sprintf(buf2
, "%s/%d",
8436 inet_ntop(p
->family
, &p
->u
.prefix
, buf
, BUFSIZ
),
8439 vty_out(vty
, "\"%s\": ", buf2
);
8441 vty_out(vty
, ",\"%s\": ", buf2
);
8444 json_object_to_json_string(json_paths
));
8445 json_object_free(json_paths
);
8452 output_count
+= *output_cum
;
8453 *output_cum
= output_count
;
8456 total_count
+= *total_cum
;
8457 *total_cum
= total_count
;
8461 vty_out(vty
, " }%s ", (is_last
? "" : ","));
8465 for (i
= 0; i
< *json_header_depth
; ++i
)
8466 vty_out(vty
, " } ");
8470 /* No route is displayed */
8471 if (output_count
== 0) {
8472 if (type
== bgp_show_type_normal
)
8474 "No BGP prefixes displayed, %ld exist\n",
8478 "\nDisplayed %ld routes and %ld total paths\n",
8479 output_count
, total_count
);
8486 int bgp_show_table_rd(struct vty
*vty
, struct bgp
*bgp
, safi_t safi
,
8487 struct bgp_table
*table
, struct prefix_rd
*prd_match
,
8488 enum bgp_show_type type
, void *output_arg
, bool use_json
)
8490 struct bgp_node
*rn
, *next
;
8491 unsigned long output_cum
= 0;
8492 unsigned long total_cum
= 0;
8493 unsigned long json_header_depth
= 0;
8496 show_msg
= (!use_json
&& type
== bgp_show_type_normal
);
8498 for (rn
= bgp_table_top(table
); rn
; rn
= next
) {
8499 next
= bgp_route_next(rn
);
8500 if (prd_match
&& memcmp(rn
->p
.u
.val
, prd_match
->val
, 8) != 0)
8502 if (rn
->info
!= NULL
) {
8503 struct prefix_rd prd
;
8504 char rd
[RD_ADDRSTRLEN
];
8506 memcpy(&prd
, &(rn
->p
), sizeof(struct prefix_rd
));
8507 prefix_rd2str(&prd
, rd
, sizeof(rd
));
8508 bgp_show_table(vty
, bgp
, safi
, rn
->info
, type
,
8509 output_arg
, use_json
, rd
, next
== NULL
,
8510 &output_cum
, &total_cum
,
8511 &json_header_depth
);
8517 if (output_cum
== 0)
8518 vty_out(vty
, "No BGP prefixes displayed, %ld exist\n",
8522 "\nDisplayed %ld routes and %ld total paths\n",
8523 output_cum
, total_cum
);
8527 static int bgp_show(struct vty
*vty
, struct bgp
*bgp
, afi_t afi
, safi_t safi
,
8528 enum bgp_show_type type
, void *output_arg
, bool use_json
)
8530 struct bgp_table
*table
;
8531 unsigned long json_header_depth
= 0;
8534 bgp
= bgp_get_default();
8539 vty_out(vty
, "No BGP process is configured\n");
8541 vty_out(vty
, "{}\n");
8545 table
= bgp
->rib
[afi
][safi
];
8546 /* use MPLS and ENCAP specific shows until they are merged */
8547 if (safi
== SAFI_MPLS_VPN
) {
8548 return bgp_show_table_rd(vty
, bgp
, safi
, table
, NULL
, type
,
8549 output_arg
, use_json
);
8552 if (safi
== SAFI_FLOWSPEC
&& type
== bgp_show_type_detail
) {
8553 return bgp_show_table_flowspec(vty
, bgp
, afi
, table
, type
,
8554 output_arg
, use_json
,
8557 /* labeled-unicast routes live in the unicast table */
8558 else if (safi
== SAFI_LABELED_UNICAST
)
8559 safi
= SAFI_UNICAST
;
8561 return bgp_show_table(vty
, bgp
, safi
, table
, type
, output_arg
, use_json
,
8562 NULL
, 1, NULL
, NULL
, &json_header_depth
);
8565 static void bgp_show_all_instances_routes_vty(struct vty
*vty
, afi_t afi
,
8566 safi_t safi
, bool use_json
)
8568 struct listnode
*node
, *nnode
;
8571 bool route_output
= false;
8574 vty_out(vty
, "{\n");
8576 for (ALL_LIST_ELEMENTS(bm
->bgp
, node
, nnode
, bgp
)) {
8577 route_output
= true;
8580 vty_out(vty
, ",\n");
8584 vty_out(vty
, "\"%s\":",
8585 (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)
8589 vty_out(vty
, "\nInstance %s:\n",
8590 (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)
8594 bgp_show(vty
, bgp
, afi
, safi
, bgp_show_type_normal
, NULL
,
8599 vty_out(vty
, "}\n");
8600 else if (!route_output
)
8601 vty_out(vty
, "%% BGP instance not found\n");
8604 /* Header of detailed BGP route information */
8605 void route_vty_out_detail_header(struct vty
*vty
, struct bgp
*bgp
,
8606 struct bgp_node
*rn
, struct prefix_rd
*prd
,
8607 afi_t afi
, safi_t safi
, json_object
*json
)
8609 struct bgp_path_info
*pi
;
8612 struct listnode
*node
, *nnode
;
8613 char buf1
[RD_ADDRSTRLEN
];
8614 char buf2
[INET6_ADDRSTRLEN
];
8615 char buf3
[EVPN_ROUTE_STRLEN
];
8616 char prefix_str
[BUFSIZ
];
8621 int route_filter_translated_v4
= 0;
8622 int route_filter_v4
= 0;
8623 int route_filter_translated_v6
= 0;
8624 int route_filter_v6
= 0;
8627 int accept_own_nexthop
= 0;
8630 int no_advertise
= 0;
8634 int has_valid_label
= 0;
8635 mpls_label_t label
= 0;
8636 json_object
*json_adv_to
= NULL
;
8639 has_valid_label
= bgp_is_valid_label(&rn
->local_label
);
8641 if (has_valid_label
)
8642 label
= label_pton(&rn
->local_label
);
8645 if (has_valid_label
)
8646 json_object_int_add(json
, "localLabel", label
);
8648 json_object_string_add(
8650 prefix2str(p
, prefix_str
, sizeof(prefix_str
)));
8652 if (safi
== SAFI_EVPN
)
8653 vty_out(vty
, "BGP routing table entry for %s%s%s\n",
8654 prd
? prefix_rd2str(prd
, buf1
, sizeof(buf1
))
8657 bgp_evpn_route2str((struct prefix_evpn
*)p
,
8658 buf3
, sizeof(buf3
)));
8660 vty_out(vty
, "BGP routing table entry for %s%s%s/%d\n",
8661 ((safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
)
8662 ? prefix_rd2str(prd
, buf1
,
8665 safi
== SAFI_MPLS_VPN
? ":" : "",
8666 inet_ntop(p
->family
, &p
->u
.prefix
, buf2
,
8670 if (has_valid_label
)
8671 vty_out(vty
, "Local label: %d\n", label
);
8672 if (bgp_labeled_safi(safi
) && safi
!= SAFI_EVPN
)
8673 vty_out(vty
, "not allocated\n");
8676 for (pi
= rn
->info
; pi
; pi
= pi
->next
) {
8678 if (CHECK_FLAG(pi
->flags
, BGP_PATH_SELECTED
)) {
8680 if (pi
->extra
&& pi
->extra
->suppress
)
8683 if (pi
->attr
->community
== NULL
)
8686 no_advertise
+= community_include(
8687 pi
->attr
->community
, COMMUNITY_NO_ADVERTISE
);
8688 no_export
+= community_include(pi
->attr
->community
,
8689 COMMUNITY_NO_EXPORT
);
8690 local_as
+= community_include(pi
->attr
->community
,
8691 COMMUNITY_LOCAL_AS
);
8692 accept_own
+= community_include(pi
->attr
->community
,
8693 COMMUNITY_ACCEPT_OWN
);
8694 route_filter_translated_v4
+= community_include(
8695 pi
->attr
->community
,
8696 COMMUNITY_ROUTE_FILTER_TRANSLATED_v4
);
8697 route_filter_translated_v6
+= community_include(
8698 pi
->attr
->community
,
8699 COMMUNITY_ROUTE_FILTER_TRANSLATED_v6
);
8700 route_filter_v4
+= community_include(
8701 pi
->attr
->community
, COMMUNITY_ROUTE_FILTER_v4
);
8702 route_filter_v6
+= community_include(
8703 pi
->attr
->community
, COMMUNITY_ROUTE_FILTER_v6
);
8704 llgr_stale
+= community_include(pi
->attr
->community
,
8705 COMMUNITY_LLGR_STALE
);
8706 no_llgr
+= community_include(pi
->attr
->community
,
8708 accept_own_nexthop
+=
8709 community_include(pi
->attr
->community
,
8710 COMMUNITY_ACCEPT_OWN_NEXTHOP
);
8711 blackhole
+= community_include(pi
->attr
->community
,
8712 COMMUNITY_BLACKHOLE
);
8713 no_peer
+= community_include(pi
->attr
->community
,
8719 vty_out(vty
, "Paths: (%d available", count
);
8721 vty_out(vty
, ", best #%d", best
);
8722 if (safi
== SAFI_UNICAST
)
8723 vty_out(vty
, ", table %s",
8725 == BGP_INSTANCE_TYPE_DEFAULT
)
8726 ? "Default-IP-Routing-Table"
8729 vty_out(vty
, ", no best path");
8733 ", accept own local route exported and imported in different VRF");
8734 else if (route_filter_translated_v4
)
8736 ", mark translated RTs for VPNv4 route filtering");
8737 else if (route_filter_v4
)
8739 ", attach RT as-is for VPNv4 route filtering");
8740 else if (route_filter_translated_v6
)
8742 ", mark translated RTs for VPNv6 route filtering");
8743 else if (route_filter_v6
)
8745 ", attach RT as-is for VPNv6 route filtering");
8746 else if (llgr_stale
)
8748 ", mark routes to be retained for a longer time. Requeres support for Long-lived BGP Graceful Restart");
8751 ", mark routes to not be treated according to Long-lived BGP Graceful Restart operations");
8752 else if (accept_own_nexthop
)
8754 ", accept local nexthop");
8756 vty_out(vty
, ", inform peer to blackhole prefix");
8758 vty_out(vty
, ", not advertised to EBGP peer");
8759 else if (no_advertise
)
8760 vty_out(vty
, ", not advertised to any peer");
8762 vty_out(vty
, ", not advertised outside local AS");
8765 ", inform EBGP peer not to advertise to their EBGP peers");
8769 ", Advertisements suppressed by an aggregate.");
8770 vty_out(vty
, ")\n");
8773 /* If we are not using addpath then we can display Advertised to and
8775 * show what peers we advertised the bestpath to. If we are using
8777 * though then we must display Advertised to on a path-by-path basis. */
8778 if (!bgp
->addpath_tx_used
[afi
][safi
]) {
8779 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
8780 if (bgp_adj_out_lookup(peer
, rn
, 0)) {
8781 if (json
&& !json_adv_to
)
8782 json_adv_to
= json_object_new_object();
8784 route_vty_out_advertised_to(
8786 " Advertised to non peer-group peers:\n ",
8793 json_object_object_add(json
, "advertisedTo",
8798 vty_out(vty
, " Not advertised to any peer");
8804 /* Display specified route of BGP table. */
8805 static int bgp_show_route_in_table(struct vty
*vty
, struct bgp
*bgp
,
8806 struct bgp_table
*rib
, const char *ip_str
,
8807 afi_t afi
, safi_t safi
,
8808 struct prefix_rd
*prd
, int prefix_check
,
8809 enum bgp_path_type pathtype
, bool use_json
)
8814 struct prefix match
;
8815 struct bgp_node
*rn
;
8816 struct bgp_node
*rm
;
8817 struct bgp_path_info
*pi
;
8818 struct bgp_table
*table
;
8819 json_object
*json
= NULL
;
8820 json_object
*json_paths
= NULL
;
8822 /* Check IP address argument. */
8823 ret
= str2prefix(ip_str
, &match
);
8825 vty_out(vty
, "address is malformed\n");
8829 match
.family
= afi2family(afi
);
8832 json
= json_object_new_object();
8833 json_paths
= json_object_new_array();
8836 if (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
|| safi
== SAFI_EVPN
) {
8837 for (rn
= bgp_table_top(rib
); rn
; rn
= bgp_route_next(rn
)) {
8838 if (prd
&& memcmp(rn
->p
.u
.val
, prd
->val
, 8) != 0)
8841 if ((table
= rn
->info
) == NULL
)
8846 if ((rm
= bgp_node_match(table
, &match
)) == NULL
)
8850 && rm
->p
.prefixlen
!= match
.prefixlen
) {
8851 bgp_unlock_node(rm
);
8855 for (pi
= rm
->info
; pi
; pi
= pi
->next
) {
8857 route_vty_out_detail_header(
8859 (struct prefix_rd
*)&rn
->p
,
8860 AFI_IP
, safi
, json
);
8865 if (pathtype
== BGP_PATH_SHOW_ALL
8866 || (pathtype
== BGP_PATH_SHOW_BESTPATH
8867 && CHECK_FLAG(pi
->flags
,
8869 || (pathtype
== BGP_PATH_SHOW_MULTIPATH
8870 && (CHECK_FLAG(pi
->flags
,
8872 || CHECK_FLAG(pi
->flags
,
8873 BGP_PATH_SELECTED
))))
8874 route_vty_out_detail(vty
, bgp
, &rm
->p
,
8879 bgp_unlock_node(rm
);
8881 } else if (safi
== SAFI_FLOWSPEC
) {
8882 display
= bgp_flowspec_display_match_per_ip(afi
, rib
,
8883 &match
, prefix_check
,
8890 if ((rn
= bgp_node_match(rib
, &match
)) != NULL
) {
8892 || rn
->p
.prefixlen
== match
.prefixlen
) {
8893 for (pi
= rn
->info
; pi
; pi
= pi
->next
) {
8895 route_vty_out_detail_header(
8896 vty
, bgp
, rn
, NULL
, afi
,
8902 if (pathtype
== BGP_PATH_SHOW_ALL
8904 == BGP_PATH_SHOW_BESTPATH
8909 == BGP_PATH_SHOW_MULTIPATH
8915 BGP_PATH_SELECTED
))))
8916 route_vty_out_detail(
8917 vty
, bgp
, &rn
->p
, pi
,
8918 afi
, safi
, json_paths
);
8922 bgp_unlock_node(rn
);
8928 json_object_object_add(json
, "paths", json_paths
);
8930 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
8931 json
, JSON_C_TO_STRING_PRETTY
));
8932 json_object_free(json
);
8935 vty_out(vty
, "%% Network not in table\n");
8943 /* Display specified route of Main RIB */
8944 static int bgp_show_route(struct vty
*vty
, struct bgp
*bgp
, const char *ip_str
,
8945 afi_t afi
, safi_t safi
, struct prefix_rd
*prd
,
8946 int prefix_check
, enum bgp_path_type pathtype
,
8950 bgp
= bgp_get_default();
8953 vty_out(vty
, "No BGP process is configured\n");
8955 vty_out(vty
, "{}\n");
8960 /* labeled-unicast routes live in the unicast table */
8961 if (safi
== SAFI_LABELED_UNICAST
)
8962 safi
= SAFI_UNICAST
;
8964 return bgp_show_route_in_table(vty
, bgp
, bgp
->rib
[afi
][safi
], ip_str
,
8965 afi
, safi
, prd
, prefix_check
, pathtype
,
8969 static int bgp_show_lcommunity(struct vty
*vty
, struct bgp
*bgp
, int argc
,
8970 struct cmd_token
**argv
, afi_t afi
, safi_t safi
,
8973 struct lcommunity
*lcom
;
8979 b
= buffer_new(1024);
8980 for (i
= 0; i
< argc
; i
++) {
8982 buffer_putc(b
, ' ');
8984 if (strmatch(argv
[i
]->text
, "AA:BB:CC")) {
8986 buffer_putstr(b
, argv
[i
]->arg
);
8990 buffer_putc(b
, '\0');
8992 str
= buffer_getstr(b
);
8995 lcom
= lcommunity_str2com(str
);
8996 XFREE(MTYPE_TMP
, str
);
8998 vty_out(vty
, "%% Large-community malformed\n");
9002 return bgp_show(vty
, bgp
, afi
, safi
, bgp_show_type_lcommunity
, lcom
,
9006 static int bgp_show_lcommunity_list(struct vty
*vty
, struct bgp
*bgp
,
9007 const char *lcom
, afi_t afi
, safi_t safi
,
9010 struct community_list
*list
;
9012 list
= community_list_lookup(bgp_clist
, lcom
,
9013 LARGE_COMMUNITY_LIST_MASTER
);
9015 vty_out(vty
, "%% %s is not a valid large-community-list name\n",
9020 return bgp_show(vty
, bgp
, afi
, safi
, bgp_show_type_lcommunity_list
,
9024 DEFUN (show_ip_bgp_large_community_list
,
9025 show_ip_bgp_large_community_list_cmd
,
9026 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]] large-community-list <(1-500)|WORD> [json]",
9030 BGP_INSTANCE_HELP_STR
9032 BGP_SAFI_WITH_LABEL_HELP_STR
9033 "Display routes matching the large-community-list\n"
9034 "large-community-list number\n"
9035 "large-community-list name\n"
9039 afi_t afi
= AFI_IP6
;
9040 safi_t safi
= SAFI_UNICAST
;
9043 if (argv_find(argv
, argc
, "ip", &idx
))
9045 if (argv_find(argv
, argc
, "view", &idx
)
9046 || argv_find(argv
, argc
, "vrf", &idx
))
9047 vrf
= argv
[++idx
]->arg
;
9048 if (argv_find(argv
, argc
, "ipv4", &idx
)
9049 || argv_find(argv
, argc
, "ipv6", &idx
)) {
9050 afi
= strmatch(argv
[idx
]->text
, "ipv6") ? AFI_IP6
: AFI_IP
;
9051 if (argv_find(argv
, argc
, "unicast", &idx
)
9052 || argv_find(argv
, argc
, "multicast", &idx
))
9053 safi
= bgp_vty_safi_from_str(argv
[idx
]->text
);
9056 bool uj
= use_json(argc
, argv
);
9058 struct bgp
*bgp
= bgp_lookup_by_name(vrf
);
9060 vty_out(vty
, "Can't find BGP instance %s\n", vrf
);
9064 argv_find(argv
, argc
, "large-community-list", &idx
);
9065 return bgp_show_lcommunity_list(vty
, bgp
, argv
[idx
+ 1]->arg
, afi
, safi
,
9068 DEFUN (show_ip_bgp_large_community
,
9069 show_ip_bgp_large_community_cmd
,
9070 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]] large-community [AA:BB:CC] [json]",
9074 BGP_INSTANCE_HELP_STR
9076 BGP_SAFI_WITH_LABEL_HELP_STR
9077 "Display routes matching the large-communities\n"
9078 "List of large-community numbers\n"
9082 afi_t afi
= AFI_IP6
;
9083 safi_t safi
= SAFI_UNICAST
;
9086 if (argv_find(argv
, argc
, "ip", &idx
))
9088 if (argv_find(argv
, argc
, "view", &idx
)
9089 || argv_find(argv
, argc
, "vrf", &idx
))
9090 vrf
= argv
[++idx
]->arg
;
9091 if (argv_find(argv
, argc
, "ipv4", &idx
)
9092 || argv_find(argv
, argc
, "ipv6", &idx
)) {
9093 afi
= strmatch(argv
[idx
]->text
, "ipv6") ? AFI_IP6
: AFI_IP
;
9094 if (argv_find(argv
, argc
, "unicast", &idx
)
9095 || argv_find(argv
, argc
, "multicast", &idx
))
9096 safi
= bgp_vty_safi_from_str(argv
[idx
]->text
);
9099 bool uj
= use_json(argc
, argv
);
9101 struct bgp
*bgp
= bgp_lookup_by_name(vrf
);
9103 vty_out(vty
, "Can't find BGP instance %s\n", vrf
);
9107 if (argv_find(argv
, argc
, "AA:BB:CC", &idx
))
9108 return bgp_show_lcommunity(vty
, bgp
, argc
, argv
, afi
, safi
, uj
);
9110 return bgp_show(vty
, bgp
, afi
, safi
,
9111 bgp_show_type_lcommunity_all
, NULL
, uj
);
9114 static int bgp_table_stats(struct vty
*vty
, struct bgp
*bgp
, afi_t afi
,
9118 /* BGP route print out function without JSON */
9121 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]]\
9122 <dampening <parameters>\
9127 |community-list <(1-500)|WORD> [exact-match]\
9128 |A.B.C.D/M longer-prefixes\
9129 |X:X::X:X/M longer-prefixes\
9134 BGP_INSTANCE_HELP_STR
9136 BGP_SAFI_WITH_LABEL_HELP_STR
9137 "Display detailed information about dampening\n"
9138 "Display detail of configured dampening parameters\n"
9139 "Display routes matching the route-map\n"
9140 "A route-map to match on\n"
9141 "Display routes conforming to the prefix-list\n"
9142 "Prefix-list name\n"
9143 "Display routes conforming to the filter-list\n"
9144 "Regular expression access list name\n"
9145 "BGP RIB advertisement statistics\n"
9146 "Display routes matching the community-list\n"
9147 "community-list number\n"
9148 "community-list name\n"
9149 "Exact match of the communities\n"
9151 "Display route and more specific routes\n"
9153 "Display route and more specific routes\n")
9155 afi_t afi
= AFI_IP6
;
9156 safi_t safi
= SAFI_UNICAST
;
9157 int exact_match
= 0;
9158 struct bgp
*bgp
= NULL
;
9161 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
9166 if (argv_find(argv
, argc
, "dampening", &idx
)) {
9167 if (argv_find(argv
, argc
, "parameters", &idx
))
9168 return bgp_show_dampening_parameters(vty
, afi
, safi
);
9171 if (argv_find(argv
, argc
, "prefix-list", &idx
))
9172 return bgp_show_prefix_list(vty
, bgp
, argv
[idx
+ 1]->arg
, afi
,
9173 safi
, bgp_show_type_prefix_list
);
9175 if (argv_find(argv
, argc
, "filter-list", &idx
))
9176 return bgp_show_filter_list(vty
, bgp
, argv
[idx
+ 1]->arg
, afi
,
9177 safi
, bgp_show_type_filter_list
);
9179 if (argv_find(argv
, argc
, "statistics", &idx
))
9180 return bgp_table_stats(vty
, bgp
, afi
, safi
);
9182 if (argv_find(argv
, argc
, "route-map", &idx
))
9183 return bgp_show_route_map(vty
, bgp
, argv
[idx
+ 1]->arg
, afi
,
9184 safi
, bgp_show_type_route_map
);
9186 if (argv_find(argv
, argc
, "community-list", &idx
)) {
9187 const char *clist_number_or_name
= argv
[++idx
]->arg
;
9188 if (++idx
< argc
&& strmatch(argv
[idx
]->text
, "exact-match"))
9190 return bgp_show_community_list(vty
, bgp
, clist_number_or_name
,
9191 exact_match
, afi
, safi
);
9194 if (argv_find(argv
, argc
, "A.B.C.D/M", &idx
)
9195 || argv_find(argv
, argc
, "X:X::X:X/M", &idx
))
9196 return bgp_show_prefix_longer(vty
, bgp
, argv
[idx
]->arg
, afi
,
9198 bgp_show_type_prefix_longer
);
9203 /* BGP route print out function with JSON */
9204 DEFUN (show_ip_bgp_json
,
9205 show_ip_bgp_json_cmd
,
9206 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]]\
9208 |dampening <flap-statistics|dampened-paths>\
9209 |community [AA:NN|local-AS|no-advertise|no-export\
9210 |graceful-shutdown|no-peer|blackhole|llgr-stale|no-llgr\
9211 |accept-own|accept-own-nexthop|route-filter-v6\
9212 |route-filter-v4|route-filter-translated-v6\
9213 |route-filter-translated-v4] [exact-match]\
9218 BGP_INSTANCE_HELP_STR
9220 BGP_SAFI_WITH_LABEL_HELP_STR
9221 "Display only routes with non-natural netmasks\n"
9222 "Display detailed information about dampening\n"
9223 "Display flap statistics of routes\n"
9224 "Display paths suppressed due to dampening\n"
9225 "Display routes matching the communities\n"
9227 "Do not send outside local AS (well-known community)\n"
9228 "Do not advertise to any peer (well-known community)\n"
9229 "Do not export to next AS (well-known community)\n"
9230 "Graceful shutdown (well-known community)\n"
9231 "Do not export to any peer (well-known community)\n"
9232 "Inform EBGP peers to blackhole traffic to prefix (well-known community)\n"
9233 "Staled Long-lived Graceful Restart VPN route (well-known community)\n"
9234 "Removed because Long-lived Graceful Restart was not enabled for VPN route (well-known community)\n"
9235 "Should accept local VPN route if exported and imported into different VRF (well-known community)\n"
9236 "Should accept VPN route with local nexthop (well-known community)\n"
9237 "RT VPNv6 route filtering (well-known community)\n"
9238 "RT VPNv4 route filtering (well-known community)\n"
9239 "RT translated VPNv6 route filtering (well-known community)\n"
9240 "RT translated VPNv4 route filtering (well-known community)\n"
9241 "Exact match of the communities\n"
9244 afi_t afi
= AFI_IP6
;
9245 safi_t safi
= SAFI_UNICAST
;
9246 enum bgp_show_type sh_type
= bgp_show_type_normal
;
9247 struct bgp
*bgp
= NULL
;
9249 int exact_match
= 0;
9250 bool uj
= use_json(argc
, argv
);
9255 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
9260 if (argv_find(argv
, argc
, "cidr-only", &idx
))
9261 return bgp_show(vty
, bgp
, afi
, safi
, bgp_show_type_cidr_only
,
9264 if (argv_find(argv
, argc
, "dampening", &idx
)) {
9265 if (argv_find(argv
, argc
, "dampened-paths", &idx
))
9266 return bgp_show(vty
, bgp
, afi
, safi
,
9267 bgp_show_type_dampend_paths
, NULL
, uj
);
9268 else if (argv_find(argv
, argc
, "flap-statistics", &idx
))
9269 return bgp_show(vty
, bgp
, afi
, safi
,
9270 bgp_show_type_flap_statistics
, NULL
,
9274 if (argv_find(argv
, argc
, "community", &idx
)) {
9275 char *maybecomm
= idx
+ 1 < argc
? argv
[idx
+ 1]->text
: NULL
;
9276 char *community
= NULL
;
9278 if (maybecomm
&& !strmatch(maybecomm
, "json")
9279 && !strmatch(maybecomm
, "exact-match"))
9280 community
= maybecomm
;
9282 if (argv_find(argv
, argc
, "exact-match", &idx
))
9286 return bgp_show_community(vty
, bgp
, community
,
9287 exact_match
, afi
, safi
, uj
);
9289 return (bgp_show(vty
, bgp
, afi
, safi
,
9290 bgp_show_type_community_all
, NULL
,
9294 return bgp_show(vty
, bgp
, afi
, safi
, sh_type
, NULL
, uj
);
9297 DEFUN (show_ip_bgp_route
,
9298 show_ip_bgp_route_cmd
,
9299 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]]"
9300 "<A.B.C.D|A.B.C.D/M|X:X::X:X|X:X::X:X/M> [<bestpath|multipath>] [json]",
9304 BGP_INSTANCE_HELP_STR
9306 BGP_SAFI_WITH_LABEL_HELP_STR
9307 "Network in the BGP routing table to display\n"
9309 "Network in the BGP routing table to display\n"
9311 "Display only the bestpath\n"
9312 "Display only multipaths\n"
9315 int prefix_check
= 0;
9317 afi_t afi
= AFI_IP6
;
9318 safi_t safi
= SAFI_UNICAST
;
9319 char *prefix
= NULL
;
9320 struct bgp
*bgp
= NULL
;
9321 enum bgp_path_type path_type
;
9322 bool uj
= use_json(argc
, argv
);
9326 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
9333 "Specified 'all' vrf's but this command currently only works per view/vrf\n");
9337 /* <A.B.C.D|A.B.C.D/M|X:X::X:X|X:X::X:X/M> */
9338 if (argv_find(argv
, argc
, "A.B.C.D", &idx
)
9339 || argv_find(argv
, argc
, "X:X::X:X", &idx
))
9341 else if (argv_find(argv
, argc
, "A.B.C.D/M", &idx
)
9342 || argv_find(argv
, argc
, "X:X::X:X/M", &idx
))
9345 if ((argv
[idx
]->type
== IPV6_TKN
|| argv
[idx
]->type
== IPV6_PREFIX_TKN
)
9346 && afi
!= AFI_IP6
) {
9348 "%% Cannot specify IPv6 address or prefix with IPv4 AFI\n");
9351 if ((argv
[idx
]->type
== IPV4_TKN
|| argv
[idx
]->type
== IPV4_PREFIX_TKN
)
9354 "%% Cannot specify IPv4 address or prefix with IPv6 AFI\n");
9358 prefix
= argv
[idx
]->arg
;
9360 /* [<bestpath|multipath>] */
9361 if (argv_find(argv
, argc
, "bestpath", &idx
))
9362 path_type
= BGP_PATH_SHOW_BESTPATH
;
9363 else if (argv_find(argv
, argc
, "multipath", &idx
))
9364 path_type
= BGP_PATH_SHOW_MULTIPATH
;
9366 path_type
= BGP_PATH_SHOW_ALL
;
9368 return bgp_show_route(vty
, bgp
, prefix
, afi
, safi
, NULL
, prefix_check
,
9372 DEFUN (show_ip_bgp_regexp
,
9373 show_ip_bgp_regexp_cmd
,
9374 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]] regexp REGEX...",
9378 BGP_INSTANCE_HELP_STR
9380 BGP_SAFI_WITH_LABEL_HELP_STR
9381 "Display routes matching the AS path regular expression\n"
9382 "A regular-expression to match the BGP AS paths\n")
9384 afi_t afi
= AFI_IP6
;
9385 safi_t safi
= SAFI_UNICAST
;
9386 struct bgp
*bgp
= NULL
;
9389 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
9394 // get index of regex
9395 argv_find(argv
, argc
, "regexp", &idx
);
9398 char *regstr
= argv_concat(argv
, argc
, idx
);
9399 int rc
= bgp_show_regexp(vty
, bgp
, (const char *)regstr
, afi
, safi
,
9400 bgp_show_type_regexp
);
9401 XFREE(MTYPE_TMP
, regstr
);
9405 DEFUN (show_ip_bgp_instance_all
,
9406 show_ip_bgp_instance_all_cmd
,
9407 "show [ip] bgp <view|vrf> all ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]] [json]",
9411 BGP_INSTANCE_ALL_HELP_STR
9413 BGP_SAFI_WITH_LABEL_HELP_STR
9417 safi_t safi
= SAFI_UNICAST
;
9418 struct bgp
*bgp
= NULL
;
9420 bool uj
= use_json(argc
, argv
);
9425 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
9430 bgp_show_all_instances_routes_vty(vty
, afi
, safi
, uj
);
9434 static int bgp_show_regexp(struct vty
*vty
, struct bgp
*bgp
, const char *regstr
,
9435 afi_t afi
, safi_t safi
, enum bgp_show_type type
)
9440 regex
= bgp_regcomp(regstr
);
9442 vty_out(vty
, "Can't compile regexp %s\n", regstr
);
9446 rc
= bgp_show(vty
, bgp
, afi
, safi
, type
, regex
, 0);
9447 bgp_regex_free(regex
);
9451 static int bgp_show_prefix_list(struct vty
*vty
, struct bgp
*bgp
,
9452 const char *prefix_list_str
, afi_t afi
,
9453 safi_t safi
, enum bgp_show_type type
)
9455 struct prefix_list
*plist
;
9457 plist
= prefix_list_lookup(afi
, prefix_list_str
);
9458 if (plist
== NULL
) {
9459 vty_out(vty
, "%% %s is not a valid prefix-list name\n",
9464 return bgp_show(vty
, bgp
, afi
, safi
, type
, plist
, 0);
9467 static int bgp_show_filter_list(struct vty
*vty
, struct bgp
*bgp
,
9468 const char *filter
, afi_t afi
, safi_t safi
,
9469 enum bgp_show_type type
)
9471 struct as_list
*as_list
;
9473 as_list
= as_list_lookup(filter
);
9474 if (as_list
== NULL
) {
9475 vty_out(vty
, "%% %s is not a valid AS-path access-list name\n",
9480 return bgp_show(vty
, bgp
, afi
, safi
, type
, as_list
, 0);
9483 static int bgp_show_route_map(struct vty
*vty
, struct bgp
*bgp
,
9484 const char *rmap_str
, afi_t afi
, safi_t safi
,
9485 enum bgp_show_type type
)
9487 struct route_map
*rmap
;
9489 rmap
= route_map_lookup_by_name(rmap_str
);
9491 vty_out(vty
, "%% %s is not a valid route-map name\n", rmap_str
);
9495 return bgp_show(vty
, bgp
, afi
, safi
, type
, rmap
, 0);
9498 static int bgp_show_community(struct vty
*vty
, struct bgp
*bgp
,
9499 const char *comstr
, int exact
, afi_t afi
,
9500 safi_t safi
, bool use_json
)
9502 struct community
*com
;
9505 com
= community_str2com(comstr
);
9507 vty_out(vty
, "%% Community malformed: %s\n", comstr
);
9511 ret
= bgp_show(vty
, bgp
, afi
, safi
,
9512 (exact
? bgp_show_type_community_exact
9513 : bgp_show_type_community
),
9515 community_free(com
);
9520 static int bgp_show_community_list(struct vty
*vty
, struct bgp
*bgp
,
9521 const char *com
, int exact
, afi_t afi
,
9524 struct community_list
*list
;
9526 list
= community_list_lookup(bgp_clist
, com
, COMMUNITY_LIST_MASTER
);
9528 vty_out(vty
, "%% %s is not a valid community-list name\n", com
);
9532 return bgp_show(vty
, bgp
, afi
, safi
,
9533 (exact
? bgp_show_type_community_list_exact
9534 : bgp_show_type_community_list
),
9538 static int bgp_show_prefix_longer(struct vty
*vty
, struct bgp
*bgp
,
9539 const char *prefix
, afi_t afi
, safi_t safi
,
9540 enum bgp_show_type type
)
9547 ret
= str2prefix(prefix
, p
);
9549 vty_out(vty
, "%% Malformed Prefix\n");
9553 ret
= bgp_show(vty
, bgp
, afi
, safi
, type
, p
, 0);
9558 static struct peer
*peer_lookup_in_view(struct vty
*vty
, struct bgp
*bgp
,
9559 const char *ip_str
, bool use_json
)
9565 /* Get peer sockunion. */
9566 ret
= str2sockunion(ip_str
, &su
);
9568 peer
= peer_lookup_by_conf_if(bgp
, ip_str
);
9570 peer
= peer_lookup_by_hostname(bgp
, ip_str
);
9574 json_object
*json_no
= NULL
;
9575 json_no
= json_object_new_object();
9576 json_object_string_add(
9578 "malformedAddressOrName",
9580 vty_out(vty
, "%s\n",
9581 json_object_to_json_string_ext(
9583 JSON_C_TO_STRING_PRETTY
));
9584 json_object_free(json_no
);
9587 "%% Malformed address or name: %s\n",
9595 /* Peer structure lookup. */
9596 peer
= peer_lookup(bgp
, &su
);
9599 json_object
*json_no
= NULL
;
9600 json_no
= json_object_new_object();
9601 json_object_string_add(json_no
, "warning",
9602 "No such neighbor in this view/vrf");
9603 vty_out(vty
, "%s\n",
9604 json_object_to_json_string_ext(
9605 json_no
, JSON_C_TO_STRING_PRETTY
));
9606 json_object_free(json_no
);
9608 vty_out(vty
, "No such neighbor in this view/vrf\n");
9616 BGP_STATS_MAXBITLEN
= 0,
9620 BGP_STATS_UNAGGREGATEABLE
,
9621 BGP_STATS_MAX_AGGREGATEABLE
,
9622 BGP_STATS_AGGREGATES
,
9624 BGP_STATS_ASPATH_COUNT
,
9625 BGP_STATS_ASPATH_MAXHOPS
,
9626 BGP_STATS_ASPATH_TOTHOPS
,
9627 BGP_STATS_ASPATH_MAXSIZE
,
9628 BGP_STATS_ASPATH_TOTSIZE
,
9629 BGP_STATS_ASN_HIGHEST
,
9633 static const char *table_stats_strs
[] = {
9634 [BGP_STATS_PREFIXES
] = "Total Prefixes",
9635 [BGP_STATS_TOTPLEN
] = "Average prefix length",
9636 [BGP_STATS_RIB
] = "Total Advertisements",
9637 [BGP_STATS_UNAGGREGATEABLE
] = "Unaggregateable prefixes",
9638 [BGP_STATS_MAX_AGGREGATEABLE
] =
9639 "Maximum aggregateable prefixes",
9640 [BGP_STATS_AGGREGATES
] = "BGP Aggregate advertisements",
9641 [BGP_STATS_SPACE
] = "Address space advertised",
9642 [BGP_STATS_ASPATH_COUNT
] = "Advertisements with paths",
9643 [BGP_STATS_ASPATH_MAXHOPS
] = "Longest AS-Path (hops)",
9644 [BGP_STATS_ASPATH_MAXSIZE
] = "Largest AS-Path (bytes)",
9645 [BGP_STATS_ASPATH_TOTHOPS
] = "Average AS-Path length (hops)",
9646 [BGP_STATS_ASPATH_TOTSIZE
] = "Average AS-Path size (bytes)",
9647 [BGP_STATS_ASN_HIGHEST
] = "Highest public ASN",
9648 [BGP_STATS_MAX
] = NULL
,
9651 struct bgp_table_stats
{
9652 struct bgp_table
*table
;
9653 unsigned long long counts
[BGP_STATS_MAX
];
9658 #define TALLY_SIGFIG 100000
9659 static unsigned long
9660 ravg_tally (unsigned long count
, unsigned long oldavg
, unsigned long newval
)
9662 unsigned long newtot
= (count
-1) * oldavg
+ (newval
* TALLY_SIGFIG
);
9663 unsigned long res
= (newtot
* TALLY_SIGFIG
) / count
;
9664 unsigned long ret
= newtot
/ count
;
9666 if ((res
% TALLY_SIGFIG
) > (TALLY_SIGFIG
/2))
9673 static int bgp_table_stats_walker(struct thread
*t
)
9675 struct bgp_node
*rn
;
9676 struct bgp_node
*top
;
9677 struct bgp_table_stats
*ts
= THREAD_ARG(t
);
9678 unsigned int space
= 0;
9680 if (!(top
= bgp_table_top(ts
->table
)))
9683 switch (top
->p
.family
) {
9685 space
= IPV4_MAX_BITLEN
;
9688 space
= IPV6_MAX_BITLEN
;
9692 ts
->counts
[BGP_STATS_MAXBITLEN
] = space
;
9694 for (rn
= top
; rn
; rn
= bgp_route_next(rn
)) {
9695 struct bgp_path_info
*pi
;
9696 struct bgp_node
*prn
= bgp_node_parent_nolock(rn
);
9697 unsigned int pinum
= 0;
9705 ts
->counts
[BGP_STATS_PREFIXES
]++;
9706 ts
->counts
[BGP_STATS_TOTPLEN
] += rn
->p
.prefixlen
;
9709 ts
->counts
[BGP_STATS_AVGPLEN
]
9710 = ravg_tally (ts
->counts
[BGP_STATS_PREFIXES
],
9711 ts
->counts
[BGP_STATS_AVGPLEN
],
9715 /* check if the prefix is included by any other announcements */
9716 while (prn
&& !prn
->info
)
9717 prn
= bgp_node_parent_nolock(prn
);
9719 if (prn
== NULL
|| prn
== top
) {
9720 ts
->counts
[BGP_STATS_UNAGGREGATEABLE
]++;
9721 /* announced address space */
9724 pow(2.0, space
- rn
->p
.prefixlen
);
9725 } else if (prn
->info
)
9726 ts
->counts
[BGP_STATS_MAX_AGGREGATEABLE
]++;
9728 for (pi
= rn
->info
; pi
; pi
= pi
->next
) {
9730 ts
->counts
[BGP_STATS_RIB
]++;
9733 && (CHECK_FLAG(pi
->attr
->flag
,
9735 BGP_ATTR_ATOMIC_AGGREGATE
))))
9736 ts
->counts
[BGP_STATS_AGGREGATES
]++;
9739 if (pi
->attr
&& pi
->attr
->aspath
) {
9741 aspath_count_hops(pi
->attr
->aspath
);
9743 aspath_size(pi
->attr
->aspath
);
9744 as_t highest
= aspath_highest(pi
->attr
->aspath
);
9746 ts
->counts
[BGP_STATS_ASPATH_COUNT
]++;
9748 if (hops
> ts
->counts
[BGP_STATS_ASPATH_MAXHOPS
])
9749 ts
->counts
[BGP_STATS_ASPATH_MAXHOPS
] =
9752 if (size
> ts
->counts
[BGP_STATS_ASPATH_MAXSIZE
])
9753 ts
->counts
[BGP_STATS_ASPATH_MAXSIZE
] =
9756 ts
->counts
[BGP_STATS_ASPATH_TOTHOPS
] += hops
;
9757 ts
->counts
[BGP_STATS_ASPATH_TOTSIZE
] += size
;
9759 ts
->counts
[BGP_STATS_ASPATH_AVGHOPS
]
9760 = ravg_tally (ts
->counts
[BGP_STATS_ASPATH_COUNT
],
9761 ts
->counts
[BGP_STATS_ASPATH_AVGHOPS
],
9763 ts
->counts
[BGP_STATS_ASPATH_AVGSIZE
]
9764 = ravg_tally (ts
->counts
[BGP_STATS_ASPATH_COUNT
],
9765 ts
->counts
[BGP_STATS_ASPATH_AVGSIZE
],
9768 if (highest
> ts
->counts
[BGP_STATS_ASN_HIGHEST
])
9769 ts
->counts
[BGP_STATS_ASN_HIGHEST
] =
9777 static int bgp_table_stats(struct vty
*vty
, struct bgp
*bgp
, afi_t afi
,
9780 struct bgp_table_stats ts
;
9783 if (!bgp
->rib
[afi
][safi
]) {
9784 vty_out(vty
, "%% No RIB exist's for the AFI(%d)/SAFI(%d)\n",
9789 vty_out(vty
, "BGP %s RIB statistics\n", afi_safi_print(afi
, safi
));
9791 /* labeled-unicast routes live in the unicast table */
9792 if (safi
== SAFI_LABELED_UNICAST
)
9793 safi
= SAFI_UNICAST
;
9795 memset(&ts
, 0, sizeof(ts
));
9796 ts
.table
= bgp
->rib
[afi
][safi
];
9797 thread_execute(bm
->master
, bgp_table_stats_walker
, &ts
, 0);
9799 for (i
= 0; i
< BGP_STATS_MAX
; i
++) {
9800 if (!table_stats_strs
[i
])
9805 case BGP_STATS_ASPATH_AVGHOPS
:
9806 case BGP_STATS_ASPATH_AVGSIZE
:
9807 case BGP_STATS_AVGPLEN
:
9808 vty_out (vty
, "%-30s: ", table_stats_strs
[i
]);
9809 vty_out (vty
, "%12.2f",
9810 (float)ts
.counts
[i
] / (float)TALLY_SIGFIG
);
9813 case BGP_STATS_ASPATH_TOTHOPS
:
9814 case BGP_STATS_ASPATH_TOTSIZE
:
9815 vty_out(vty
, "%-30s: ", table_stats_strs
[i
]);
9816 vty_out(vty
, "%12.2f",
9818 ? (float)ts
.counts
[i
]
9820 [BGP_STATS_ASPATH_COUNT
]
9823 case BGP_STATS_TOTPLEN
:
9824 vty_out(vty
, "%-30s: ", table_stats_strs
[i
]);
9825 vty_out(vty
, "%12.2f",
9827 ? (float)ts
.counts
[i
]
9829 [BGP_STATS_PREFIXES
]
9832 case BGP_STATS_SPACE
:
9833 vty_out(vty
, "%-30s: ", table_stats_strs
[i
]);
9834 vty_out(vty
, "%12g\n", ts
.total_space
);
9836 if (afi
== AFI_IP6
) {
9837 vty_out(vty
, "%30s: ", "/32 equivalent ");
9838 vty_out(vty
, "%12g\n",
9839 ts
.total_space
* pow(2.0, -128 + 32));
9840 vty_out(vty
, "%30s: ", "/48 equivalent ");
9841 vty_out(vty
, "%12g\n",
9842 ts
.total_space
* pow(2.0, -128 + 48));
9844 vty_out(vty
, "%30s: ", "% announced ");
9845 vty_out(vty
, "%12.2f\n",
9846 ts
.total_space
* 100. * pow(2.0, -32));
9847 vty_out(vty
, "%30s: ", "/8 equivalent ");
9848 vty_out(vty
, "%12.2f\n",
9849 ts
.total_space
* pow(2.0, -32 + 8));
9850 vty_out(vty
, "%30s: ", "/24 equivalent ");
9851 vty_out(vty
, "%12.2f\n",
9852 ts
.total_space
* pow(2.0, -32 + 24));
9856 vty_out(vty
, "%-30s: ", table_stats_strs
[i
]);
9857 vty_out(vty
, "%12llu", ts
.counts
[i
]);
9874 PCOUNT_PFCNT
, /* the figure we display to users */
9878 static const char *pcount_strs
[] = {
9879 [PCOUNT_ADJ_IN
] = "Adj-in",
9880 [PCOUNT_DAMPED
] = "Damped",
9881 [PCOUNT_REMOVED
] = "Removed",
9882 [PCOUNT_HISTORY
] = "History",
9883 [PCOUNT_STALE
] = "Stale",
9884 [PCOUNT_VALID
] = "Valid",
9885 [PCOUNT_ALL
] = "All RIB",
9886 [PCOUNT_COUNTED
] = "PfxCt counted",
9887 [PCOUNT_PFCNT
] = "Useable",
9888 [PCOUNT_MAX
] = NULL
,
9891 struct peer_pcounts
{
9892 unsigned int count
[PCOUNT_MAX
];
9893 const struct peer
*peer
;
9894 const struct bgp_table
*table
;
9897 static int bgp_peer_count_walker(struct thread
*t
)
9899 struct bgp_node
*rn
;
9900 struct peer_pcounts
*pc
= THREAD_ARG(t
);
9901 const struct peer
*peer
= pc
->peer
;
9903 for (rn
= bgp_table_top(pc
->table
); rn
; rn
= bgp_route_next(rn
)) {
9904 struct bgp_adj_in
*ain
;
9905 struct bgp_path_info
*pi
;
9907 for (ain
= rn
->adj_in
; ain
; ain
= ain
->next
)
9908 if (ain
->peer
== peer
)
9909 pc
->count
[PCOUNT_ADJ_IN
]++;
9911 for (pi
= rn
->info
; pi
; pi
= pi
->next
) {
9912 if (pi
->peer
!= peer
)
9915 pc
->count
[PCOUNT_ALL
]++;
9917 if (CHECK_FLAG(pi
->flags
, BGP_PATH_DAMPED
))
9918 pc
->count
[PCOUNT_DAMPED
]++;
9919 if (CHECK_FLAG(pi
->flags
, BGP_PATH_HISTORY
))
9920 pc
->count
[PCOUNT_HISTORY
]++;
9921 if (CHECK_FLAG(pi
->flags
, BGP_PATH_REMOVED
))
9922 pc
->count
[PCOUNT_REMOVED
]++;
9923 if (CHECK_FLAG(pi
->flags
, BGP_PATH_STALE
))
9924 pc
->count
[PCOUNT_STALE
]++;
9925 if (CHECK_FLAG(pi
->flags
, BGP_PATH_VALID
))
9926 pc
->count
[PCOUNT_VALID
]++;
9927 if (!CHECK_FLAG(pi
->flags
, BGP_PATH_UNUSEABLE
))
9928 pc
->count
[PCOUNT_PFCNT
]++;
9930 if (CHECK_FLAG(pi
->flags
, BGP_PATH_COUNTED
)) {
9931 pc
->count
[PCOUNT_COUNTED
]++;
9932 if (CHECK_FLAG(pi
->flags
, BGP_PATH_UNUSEABLE
))
9935 "Attempting to count but flags say it is unusable");
9937 if (!CHECK_FLAG(pi
->flags
, BGP_PATH_UNUSEABLE
))
9940 "Not counted but flags say we should");
9947 static int bgp_peer_counts(struct vty
*vty
, struct peer
*peer
, afi_t afi
,
9948 safi_t safi
, bool use_json
)
9950 struct peer_pcounts pcounts
= {.peer
= peer
};
9952 json_object
*json
= NULL
;
9953 json_object
*json_loop
= NULL
;
9956 json
= json_object_new_object();
9957 json_loop
= json_object_new_object();
9960 if (!peer
|| !peer
->bgp
|| !peer
->afc
[afi
][safi
]
9961 || !peer
->bgp
->rib
[afi
][safi
]) {
9963 json_object_string_add(
9965 "No such neighbor or address family");
9966 vty_out(vty
, "%s\n", json_object_to_json_string(json
));
9967 json_object_free(json
);
9969 vty_out(vty
, "%% No such neighbor or address family\n");
9974 memset(&pcounts
, 0, sizeof(pcounts
));
9975 pcounts
.peer
= peer
;
9976 pcounts
.table
= peer
->bgp
->rib
[afi
][safi
];
9978 /* in-place call via thread subsystem so as to record execution time
9979 * stats for the thread-walk (i.e. ensure this can't be blamed on
9980 * on just vty_read()).
9982 thread_execute(bm
->master
, bgp_peer_count_walker
, &pcounts
, 0);
9985 json_object_string_add(json
, "prefixCountsFor", peer
->host
);
9986 json_object_string_add(json
, "multiProtocol",
9987 afi_safi_print(afi
, safi
));
9988 json_object_int_add(json
, "pfxCounter",
9989 peer
->pcount
[afi
][safi
]);
9991 for (i
= 0; i
< PCOUNT_MAX
; i
++)
9992 json_object_int_add(json_loop
, pcount_strs
[i
],
9995 json_object_object_add(json
, "ribTableWalkCounters", json_loop
);
9997 if (pcounts
.count
[PCOUNT_PFCNT
] != peer
->pcount
[afi
][safi
]) {
9998 json_object_string_add(json
, "pfxctDriftFor",
10000 json_object_string_add(
10001 json
, "recommended",
10002 "Please report this bug, with the above command output");
10004 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
10005 json
, JSON_C_TO_STRING_PRETTY
));
10006 json_object_free(json
);
10010 && bgp_flag_check(peer
->bgp
, BGP_FLAG_SHOW_HOSTNAME
)) {
10011 vty_out(vty
, "Prefix counts for %s/%s, %s\n",
10012 peer
->hostname
, peer
->host
,
10013 afi_safi_print(afi
, safi
));
10015 vty_out(vty
, "Prefix counts for %s, %s\n", peer
->host
,
10016 afi_safi_print(afi
, safi
));
10019 vty_out(vty
, "PfxCt: %ld\n", peer
->pcount
[afi
][safi
]);
10020 vty_out(vty
, "\nCounts from RIB table walk:\n\n");
10022 for (i
= 0; i
< PCOUNT_MAX
; i
++)
10023 vty_out(vty
, "%20s: %-10d\n", pcount_strs
[i
],
10026 if (pcounts
.count
[PCOUNT_PFCNT
] != peer
->pcount
[afi
][safi
]) {
10027 vty_out(vty
, "%s [pcount] PfxCt drift!\n", peer
->host
);
10029 "Please report this bug, with the above command output\n");
10033 return CMD_SUCCESS
;
10036 DEFUN (show_ip_bgp_instance_neighbor_prefix_counts
,
10037 show_ip_bgp_instance_neighbor_prefix_counts_cmd
,
10038 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_CMD_STR
"]] "
10039 "neighbors <A.B.C.D|X:X::X:X|WORD> prefix-counts [json]",
10043 BGP_INSTANCE_HELP_STR
10046 "Detailed information on TCP and BGP neighbor connections\n"
10047 "Neighbor to display information about\n"
10048 "Neighbor to display information about\n"
10049 "Neighbor on BGP configured interface\n"
10050 "Display detailed prefix count information\n"
10053 afi_t afi
= AFI_IP6
;
10054 safi_t safi
= SAFI_UNICAST
;
10057 struct bgp
*bgp
= NULL
;
10058 bool uj
= use_json(argc
, argv
);
10063 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
10066 return CMD_WARNING
;
10068 argv_find(argv
, argc
, "neighbors", &idx
);
10069 peer
= peer_lookup_in_view(vty
, bgp
, argv
[idx
+ 1]->arg
, uj
);
10071 return CMD_WARNING
;
10073 return bgp_peer_counts(vty
, peer
, AFI_IP
, SAFI_UNICAST
, uj
);
10076 #ifdef KEEP_OLD_VPN_COMMANDS
10077 DEFUN (show_ip_bgp_vpn_neighbor_prefix_counts
,
10078 show_ip_bgp_vpn_neighbor_prefix_counts_cmd
,
10079 "show [ip] bgp <vpnv4|vpnv6> all neighbors <A.B.C.D|X:X::X:X|WORD> prefix-counts [json]",
10084 "Display information about all VPNv4 NLRIs\n"
10085 "Detailed information on TCP and BGP neighbor connections\n"
10086 "Neighbor to display information about\n"
10087 "Neighbor to display information about\n"
10088 "Neighbor on BGP configured interface\n"
10089 "Display detailed prefix count information\n"
10094 bool uj
= use_json(argc
, argv
);
10096 peer
= peer_lookup_in_view(vty
, NULL
, argv
[idx_peer
]->arg
, uj
);
10098 return CMD_WARNING
;
10100 return bgp_peer_counts(vty
, peer
, AFI_IP
, SAFI_MPLS_VPN
, uj
);
10103 DEFUN (show_ip_bgp_vpn_all_route_prefix
,
10104 show_ip_bgp_vpn_all_route_prefix_cmd
,
10105 "show [ip] bgp <vpnv4|vpnv6> all <A.B.C.D|A.B.C.D/M> [json]",
10110 "Display information about all VPNv4 NLRIs\n"
10111 "Network in the BGP routing table to display\n"
10112 "Network in the BGP routing table to display\n"
10116 char *network
= NULL
;
10117 struct bgp
*bgp
= bgp_get_default();
10119 vty_out(vty
, "Can't find default instance\n");
10120 return CMD_WARNING
;
10123 if (argv_find(argv
, argc
, "A.B.C.D", &idx
))
10124 network
= argv
[idx
]->arg
;
10125 else if (argv_find(argv
, argc
, "A.B.C.D/M", &idx
))
10126 network
= argv
[idx
]->arg
;
10128 vty_out(vty
, "Unable to figure out Network\n");
10129 return CMD_WARNING
;
10132 return bgp_show_route(vty
, bgp
, network
, AFI_IP
, SAFI_MPLS_VPN
, NULL
, 0,
10133 BGP_PATH_SHOW_ALL
, use_json(argc
, argv
));
10135 #endif /* KEEP_OLD_VPN_COMMANDS */
10137 DEFUN (show_ip_bgp_l2vpn_evpn_all_route_prefix
,
10138 show_ip_bgp_l2vpn_evpn_all_route_prefix_cmd
,
10139 "show [ip] bgp l2vpn evpn all <A.B.C.D|A.B.C.D/M> [json]",
10145 "Display information about all EVPN NLRIs\n"
10146 "Network in the BGP routing table to display\n"
10147 "Network in the BGP routing table to display\n"
10151 char *network
= NULL
;
10153 if (argv_find(argv
, argc
, "A.B.C.D", &idx
))
10154 network
= argv
[idx
]->arg
;
10155 else if (argv_find(argv
, argc
, "A.B.C.D/M", &idx
))
10156 network
= argv
[idx
]->arg
;
10158 vty_out(vty
, "Unable to figure out Network\n");
10159 return CMD_WARNING
;
10161 return bgp_show_route(vty
, NULL
, network
, AFI_L2VPN
, SAFI_EVPN
, NULL
, 0,
10162 BGP_PATH_SHOW_ALL
, use_json(argc
, argv
));
10165 static void show_adj_route(struct vty
*vty
, struct peer
*peer
, afi_t afi
,
10166 safi_t safi
, enum bgp_show_adj_route_type type
,
10167 const char *rmap_name
, bool use_json
,
10170 struct bgp_table
*table
;
10171 struct bgp_adj_in
*ain
;
10172 struct bgp_adj_out
*adj
;
10173 unsigned long output_count
;
10174 unsigned long filtered_count
;
10175 struct bgp_node
*rn
;
10181 struct update_subgroup
*subgrp
;
10182 json_object
*json_scode
= NULL
;
10183 json_object
*json_ocode
= NULL
;
10184 json_object
*json_ar
= NULL
;
10185 struct peer_af
*paf
;
10186 bool route_filtered
;
10189 json_scode
= json_object_new_object();
10190 json_ocode
= json_object_new_object();
10191 json_ar
= json_object_new_object();
10193 json_object_string_add(json_scode
, "suppressed", "s");
10194 json_object_string_add(json_scode
, "damped", "d");
10195 json_object_string_add(json_scode
, "history", "h");
10196 json_object_string_add(json_scode
, "valid", "*");
10197 json_object_string_add(json_scode
, "best", ">");
10198 json_object_string_add(json_scode
, "multipath", "=");
10199 json_object_string_add(json_scode
, "internal", "i");
10200 json_object_string_add(json_scode
, "ribFailure", "r");
10201 json_object_string_add(json_scode
, "stale", "S");
10202 json_object_string_add(json_scode
, "removed", "R");
10204 json_object_string_add(json_ocode
, "igp", "i");
10205 json_object_string_add(json_ocode
, "egp", "e");
10206 json_object_string_add(json_ocode
, "incomplete", "?");
10213 json_object_string_add(json
, "alert", "no BGP");
10214 vty_out(vty
, "%s\n", json_object_to_json_string(json
));
10215 json_object_free(json
);
10217 vty_out(vty
, "%% No bgp\n");
10221 table
= bgp
->rib
[afi
][safi
];
10223 output_count
= filtered_count
= 0;
10224 subgrp
= peer_subgroup(peer
, afi
, safi
);
10226 if (type
== bgp_show_adj_route_advertised
&& subgrp
10227 && CHECK_FLAG(subgrp
->sflags
, SUBGRP_STATUS_DEFAULT_ORIGINATE
)) {
10229 json_object_int_add(json
, "bgpTableVersion",
10231 json_object_string_add(json
, "bgpLocalRouterId",
10232 inet_ntoa(bgp
->router_id
));
10233 json_object_object_add(json
, "bgpStatusCodes",
10235 json_object_object_add(json
, "bgpOriginCodes",
10237 json_object_string_add(
10238 json
, "bgpOriginatingDefaultNetwork",
10239 (afi
== AFI_IP
) ? "0.0.0.0/0" : "::/0");
10241 vty_out(vty
, "BGP table version is %" PRIu64
10242 ", local router ID is %s, vrf id ",
10243 table
->version
, inet_ntoa(bgp
->router_id
));
10244 if (bgp
->vrf_id
== VRF_UNKNOWN
)
10245 vty_out(vty
, "%s", VRFID_NONE_STR
);
10247 vty_out(vty
, "%u", bgp
->vrf_id
);
10248 vty_out(vty
, "\n");
10249 vty_out(vty
, BGP_SHOW_SCODE_HEADER
);
10250 vty_out(vty
, BGP_SHOW_NCODE_HEADER
);
10251 vty_out(vty
, BGP_SHOW_OCODE_HEADER
);
10253 vty_out(vty
, "Originating default network %s\n\n",
10254 (afi
== AFI_IP
) ? "0.0.0.0/0" : "::/0");
10259 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
)) {
10260 if (type
== bgp_show_adj_route_received
10261 || type
== bgp_show_adj_route_filtered
) {
10262 for (ain
= rn
->adj_in
; ain
; ain
= ain
->next
) {
10263 if (ain
->peer
!= peer
|| !ain
->attr
)
10268 json_object_int_add(
10269 json
, "bgpTableVersion",
10271 json_object_string_add(
10273 "bgpLocalRouterId",
10276 json_object_object_add(
10277 json
, "bgpStatusCodes",
10279 json_object_object_add(
10280 json
, "bgpOriginCodes",
10284 "BGP table version is 0, local router ID is %s, vrf id ",
10287 if (bgp
->vrf_id
== VRF_UNKNOWN
)
10293 vty_out(vty
, "\n");
10295 BGP_SHOW_SCODE_HEADER
);
10297 BGP_SHOW_NCODE_HEADER
);
10299 BGP_SHOW_OCODE_HEADER
);
10305 vty_out(vty
, BGP_SHOW_HEADER
);
10309 bgp_attr_dup(&attr
, ain
->attr
);
10310 route_filtered
= false;
10312 /* Filter prefix using distribute list,
10313 * filter list or prefix list
10315 if ((bgp_input_filter(peer
, &rn
->p
, &attr
, afi
,
10316 safi
)) == FILTER_DENY
)
10317 route_filtered
= true;
10319 /* Filter prefix using route-map */
10320 ret
= bgp_input_modifier(peer
, &rn
->p
, &attr
,
10321 afi
, safi
, rmap_name
);
10323 if (type
== bgp_show_adj_route_filtered
&&
10324 !route_filtered
&& ret
!= RMAP_DENY
) {
10325 bgp_attr_undup(&attr
, ain
->attr
);
10329 if (type
== bgp_show_adj_route_received
&&
10330 (route_filtered
|| ret
== RMAP_DENY
))
10333 route_vty_out_tmp(vty
, &rn
->p
, &attr
, safi
,
10334 use_json
, json_ar
);
10335 bgp_attr_undup(&attr
, ain
->attr
);
10338 } else if (type
== bgp_show_adj_route_advertised
) {
10339 for (adj
= rn
->adj_out
; adj
; adj
= adj
->next
)
10340 SUBGRP_FOREACH_PEER (adj
->subgroup
, paf
) {
10341 if (paf
->peer
!= peer
|| !adj
->attr
)
10346 json_object_int_add(
10350 json_object_string_add(
10352 "bgpLocalRouterId",
10355 json_object_object_add(
10359 json_object_object_add(
10365 "BGP table version is %" PRIu64
10366 ", local router ID is %s, vrf id ",
10379 vty_out(vty
, "\n");
10381 BGP_SHOW_SCODE_HEADER
);
10383 BGP_SHOW_NCODE_HEADER
);
10385 BGP_SHOW_OCODE_HEADER
);
10396 bgp_attr_dup(&attr
, adj
->attr
);
10397 ret
= bgp_output_modifier(
10398 peer
, &rn
->p
, &attr
, afi
, safi
,
10401 if (ret
!= RMAP_DENY
) {
10402 route_vty_out_tmp(vty
, &rn
->p
,
10411 bgp_attr_undup(&attr
, adj
->attr
);
10417 json_object_object_add(json
, "advertisedRoutes", json_ar
);
10418 json_object_int_add(json
, "totalPrefixCounter", output_count
);
10419 json_object_int_add(json
, "filteredPrefixCounter",
10422 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
10423 json
, JSON_C_TO_STRING_PRETTY
));
10424 json_object_free(json
);
10425 } else if (output_count
> 0) {
10426 if (filtered_count
> 0)
10428 "\nTotal number of prefixes %ld (%ld filtered)\n",
10429 output_count
, filtered_count
);
10431 vty_out(vty
, "\nTotal number of prefixes %ld\n",
10436 static int peer_adj_routes(struct vty
*vty
, struct peer
*peer
, afi_t afi
,
10437 safi_t safi
, enum bgp_show_adj_route_type type
,
10438 const char *rmap_name
, bool use_json
)
10440 json_object
*json
= NULL
;
10443 json
= json_object_new_object();
10445 /* labeled-unicast routes live in the unicast table */
10446 if (safi
== SAFI_LABELED_UNICAST
)
10447 safi
= SAFI_UNICAST
;
10449 if (!peer
|| !peer
->afc
[afi
][safi
]) {
10451 json_object_string_add(
10453 "No such neighbor or address family");
10454 vty_out(vty
, "%s\n", json_object_to_json_string(json
));
10455 json_object_free(json
);
10457 vty_out(vty
, "%% No such neighbor or address family\n");
10459 return CMD_WARNING
;
10462 if ((type
== bgp_show_adj_route_received
10463 || type
== bgp_show_adj_route_filtered
)
10464 && !CHECK_FLAG(peer
->af_flags
[afi
][safi
],
10465 PEER_FLAG_SOFT_RECONFIG
)) {
10467 json_object_string_add(
10469 "Inbound soft reconfiguration not enabled");
10470 vty_out(vty
, "%s\n", json_object_to_json_string(json
));
10471 json_object_free(json
);
10474 "%% Inbound soft reconfiguration not enabled\n");
10476 return CMD_WARNING
;
10479 show_adj_route(vty
, peer
, afi
, safi
, type
, rmap_name
, use_json
, json
);
10481 return CMD_SUCCESS
;
10484 DEFUN (show_ip_bgp_instance_neighbor_advertised_route
,
10485 show_ip_bgp_instance_neighbor_advertised_route_cmd
,
10486 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]] "
10487 "neighbors <A.B.C.D|X:X::X:X|WORD> <advertised-routes|received-routes|filtered-routes> [route-map WORD] [json]",
10491 BGP_INSTANCE_HELP_STR
10493 BGP_SAFI_WITH_LABEL_HELP_STR
10494 "Detailed information on TCP and BGP neighbor connections\n"
10495 "Neighbor to display information about\n"
10496 "Neighbor to display information about\n"
10497 "Neighbor on BGP configured interface\n"
10498 "Display the routes advertised to a BGP neighbor\n"
10499 "Display the received routes from neighbor\n"
10500 "Display the filtered routes received from neighbor\n"
10501 "Route-map to modify the attributes\n"
10502 "Name of the route map\n"
10505 afi_t afi
= AFI_IP6
;
10506 safi_t safi
= SAFI_UNICAST
;
10507 char *rmap_name
= NULL
;
10508 char *peerstr
= NULL
;
10509 struct bgp
*bgp
= NULL
;
10511 enum bgp_show_adj_route_type type
= bgp_show_adj_route_advertised
;
10513 bool uj
= use_json(argc
, argv
);
10518 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
10521 return CMD_WARNING
;
10523 /* neighbors <A.B.C.D|X:X::X:X|WORD> */
10524 argv_find(argv
, argc
, "neighbors", &idx
);
10525 peerstr
= argv
[++idx
]->arg
;
10527 peer
= peer_lookup_in_view(vty
, bgp
, peerstr
, uj
);
10529 return CMD_WARNING
;
10531 if (argv_find(argv
, argc
, "advertised-routes", &idx
))
10532 type
= bgp_show_adj_route_advertised
;
10533 else if (argv_find(argv
, argc
, "received-routes", &idx
))
10534 type
= bgp_show_adj_route_received
;
10535 else if (argv_find(argv
, argc
, "filtered-routes", &idx
))
10536 type
= bgp_show_adj_route_filtered
;
10538 if (argv_find(argv
, argc
, "route-map", &idx
))
10539 rmap_name
= argv
[++idx
]->arg
;
10541 return peer_adj_routes(vty
, peer
, afi
, safi
, type
, rmap_name
, uj
);
10544 DEFUN (show_ip_bgp_neighbor_received_prefix_filter
,
10545 show_ip_bgp_neighbor_received_prefix_filter_cmd
,
10546 "show [ip] bgp [<ipv4|ipv6> [unicast]] neighbors <A.B.C.D|X:X::X:X|WORD> received prefix-filter [json]",
10552 "Address Family modifier\n"
10553 "Detailed information on TCP and BGP neighbor connections\n"
10554 "Neighbor to display information about\n"
10555 "Neighbor to display information about\n"
10556 "Neighbor on BGP configured interface\n"
10557 "Display information received from a BGP neighbor\n"
10558 "Display the prefixlist filter\n"
10561 afi_t afi
= AFI_IP6
;
10562 safi_t safi
= SAFI_UNICAST
;
10563 char *peerstr
= NULL
;
10566 union sockunion su
;
10572 /* show [ip] bgp */
10573 if (argv_find(argv
, argc
, "ip", &idx
))
10575 /* [<ipv4|ipv6> [unicast]] */
10576 if (argv_find(argv
, argc
, "ipv4", &idx
))
10578 if (argv_find(argv
, argc
, "ipv6", &idx
))
10580 /* neighbors <A.B.C.D|X:X::X:X|WORD> */
10581 argv_find(argv
, argc
, "neighbors", &idx
);
10582 peerstr
= argv
[++idx
]->arg
;
10584 bool uj
= use_json(argc
, argv
);
10586 ret
= str2sockunion(peerstr
, &su
);
10588 peer
= peer_lookup_by_conf_if(NULL
, peerstr
);
10591 vty_out(vty
, "{}\n");
10594 "%% Malformed address or name: %s\n",
10596 return CMD_WARNING
;
10599 peer
= peer_lookup(NULL
, &su
);
10602 vty_out(vty
, "{}\n");
10604 vty_out(vty
, "No peer\n");
10605 return CMD_WARNING
;
10609 sprintf(name
, "%s.%d.%d", peer
->host
, afi
, safi
);
10610 count
= prefix_bgp_show_prefix_list(NULL
, afi
, name
, uj
);
10613 vty_out(vty
, "Address Family: %s\n",
10614 afi_safi_print(afi
, safi
));
10615 prefix_bgp_show_prefix_list(vty
, afi
, name
, uj
);
10618 vty_out(vty
, "{}\n");
10620 vty_out(vty
, "No functional output\n");
10623 return CMD_SUCCESS
;
10626 static int bgp_show_neighbor_route(struct vty
*vty
, struct peer
*peer
,
10627 afi_t afi
, safi_t safi
,
10628 enum bgp_show_type type
, bool use_json
)
10630 /* labeled-unicast routes live in the unicast table */
10631 if (safi
== SAFI_LABELED_UNICAST
)
10632 safi
= SAFI_UNICAST
;
10634 if (!peer
|| !peer
->afc
[afi
][safi
]) {
10636 json_object
*json_no
= NULL
;
10637 json_no
= json_object_new_object();
10638 json_object_string_add(
10639 json_no
, "warning",
10640 "No such neighbor or address family");
10641 vty_out(vty
, "%s\n",
10642 json_object_to_json_string(json_no
));
10643 json_object_free(json_no
);
10645 vty_out(vty
, "%% No such neighbor or address family\n");
10646 return CMD_WARNING
;
10649 return bgp_show(vty
, peer
->bgp
, afi
, safi
, type
, &peer
->su
, use_json
);
10652 DEFUN (show_ip_bgp_flowspec_routes_detailed
,
10653 show_ip_bgp_flowspec_routes_detailed_cmd
,
10654 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" flowspec] detail [json]",
10658 BGP_INSTANCE_HELP_STR
10661 "Detailed information on flowspec entries\n"
10664 afi_t afi
= AFI_IP
;
10665 safi_t safi
= SAFI_UNICAST
;
10666 struct bgp
*bgp
= NULL
;
10668 bool uj
= use_json(argc
, argv
);
10673 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
10676 return CMD_WARNING
;
10678 return bgp_show(vty
, bgp
, afi
, safi
, bgp_show_type_detail
, NULL
, uj
);
10681 DEFUN (show_ip_bgp_neighbor_routes
,
10682 show_ip_bgp_neighbor_routes_cmd
,
10683 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]] "
10684 "neighbors <A.B.C.D|X:X::X:X|WORD> <flap-statistics|dampened-routes|routes> [json]",
10688 BGP_INSTANCE_HELP_STR
10690 BGP_SAFI_WITH_LABEL_HELP_STR
10691 "Detailed information on TCP and BGP neighbor connections\n"
10692 "Neighbor to display information about\n"
10693 "Neighbor to display information about\n"
10694 "Neighbor on BGP configured interface\n"
10695 "Display flap statistics of the routes learned from neighbor\n"
10696 "Display the dampened routes received from neighbor\n"
10697 "Display routes learned from neighbor\n"
10700 char *peerstr
= NULL
;
10701 struct bgp
*bgp
= NULL
;
10702 afi_t afi
= AFI_IP6
;
10703 safi_t safi
= SAFI_UNICAST
;
10705 enum bgp_show_type sh_type
= bgp_show_type_neighbor
;
10707 bool uj
= use_json(argc
, argv
);
10712 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
10715 return CMD_WARNING
;
10717 /* neighbors <A.B.C.D|X:X::X:X|WORD> */
10718 argv_find(argv
, argc
, "neighbors", &idx
);
10719 peerstr
= argv
[++idx
]->arg
;
10721 peer
= peer_lookup_in_view(vty
, bgp
, peerstr
, uj
);
10723 return CMD_WARNING
;
10725 if (argv_find(argv
, argc
, "flap-statistics", &idx
))
10726 sh_type
= bgp_show_type_flap_neighbor
;
10727 else if (argv_find(argv
, argc
, "dampened-routes", &idx
))
10728 sh_type
= bgp_show_type_damp_neighbor
;
10729 else if (argv_find(argv
, argc
, "routes", &idx
))
10730 sh_type
= bgp_show_type_neighbor
;
10732 return bgp_show_neighbor_route(vty
, peer
, afi
, safi
, sh_type
, uj
);
10735 struct bgp_table
*bgp_distance_table
[AFI_MAX
][SAFI_MAX
];
10737 struct bgp_distance
{
10738 /* Distance value for the IP source prefix. */
10741 /* Name of the access-list to be matched. */
10745 DEFUN (show_bgp_afi_vpn_rd_route
,
10746 show_bgp_afi_vpn_rd_route_cmd
,
10747 "show bgp "BGP_AFI_CMD_STR
" vpn rd ASN:NN_OR_IP-ADDRESS:NN <A.B.C.D/M|X:X::X:X/M> [json]",
10751 "Address Family modifier\n"
10752 "Display information for a route distinguisher\n"
10753 "Route Distinguisher\n"
10754 "Network in the BGP routing table to display\n"
10755 "Network in the BGP routing table to display\n"
10759 struct prefix_rd prd
;
10760 afi_t afi
= AFI_MAX
;
10763 if (!argv_find_and_parse_afi(argv
, argc
, &idx
, &afi
)) {
10764 vty_out(vty
, "%% Malformed Address Family\n");
10765 return CMD_WARNING
;
10768 ret
= str2prefix_rd(argv
[5]->arg
, &prd
);
10770 vty_out(vty
, "%% Malformed Route Distinguisher\n");
10771 return CMD_WARNING
;
10774 return bgp_show_route(vty
, NULL
, argv
[6]->arg
, afi
, SAFI_MPLS_VPN
, &prd
,
10775 0, BGP_PATH_SHOW_ALL
, use_json(argc
, argv
));
10778 static struct bgp_distance
*bgp_distance_new(void)
10780 return XCALLOC(MTYPE_BGP_DISTANCE
, sizeof(struct bgp_distance
));
10783 static void bgp_distance_free(struct bgp_distance
*bdistance
)
10785 XFREE(MTYPE_BGP_DISTANCE
, bdistance
);
10788 static int bgp_distance_set(struct vty
*vty
, const char *distance_str
,
10789 const char *ip_str
, const char *access_list_str
)
10796 struct bgp_node
*rn
;
10797 struct bgp_distance
*bdistance
;
10799 afi
= bgp_node_afi(vty
);
10800 safi
= bgp_node_safi(vty
);
10802 ret
= str2prefix(ip_str
, &p
);
10804 vty_out(vty
, "Malformed prefix\n");
10805 return CMD_WARNING_CONFIG_FAILED
;
10808 distance
= atoi(distance_str
);
10810 /* Get BGP distance node. */
10811 rn
= bgp_node_get(bgp_distance_table
[afi
][safi
], (struct prefix
*)&p
);
10812 bdistance
= bgp_distance_get_node(rn
);
10814 bgp_unlock_node(rn
);
10816 bdistance
= bgp_distance_new();
10817 bgp_distance_set_node_info(rn
, bdistance
);
10820 /* Set distance value. */
10821 bdistance
->distance
= distance
;
10823 /* Reset access-list configuration. */
10824 if (bdistance
->access_list
) {
10825 XFREE(MTYPE_AS_LIST
, bdistance
->access_list
);
10826 bdistance
->access_list
= NULL
;
10828 if (access_list_str
)
10829 bdistance
->access_list
=
10830 XSTRDUP(MTYPE_AS_LIST
, access_list_str
);
10832 return CMD_SUCCESS
;
10835 static int bgp_distance_unset(struct vty
*vty
, const char *distance_str
,
10836 const char *ip_str
, const char *access_list_str
)
10843 struct bgp_node
*rn
;
10844 struct bgp_distance
*bdistance
;
10846 afi
= bgp_node_afi(vty
);
10847 safi
= bgp_node_safi(vty
);
10849 ret
= str2prefix(ip_str
, &p
);
10851 vty_out(vty
, "Malformed prefix\n");
10852 return CMD_WARNING_CONFIG_FAILED
;
10855 rn
= bgp_node_lookup(bgp_distance_table
[afi
][safi
],
10856 (struct prefix
*)&p
);
10858 vty_out(vty
, "Can't find specified prefix\n");
10859 return CMD_WARNING_CONFIG_FAILED
;
10862 bdistance
= bgp_distance_get_node(rn
);
10863 distance
= atoi(distance_str
);
10865 if (bdistance
->distance
!= distance
) {
10866 vty_out(vty
, "Distance does not match configured\n");
10867 return CMD_WARNING_CONFIG_FAILED
;
10870 if (bdistance
->access_list
)
10871 XFREE(MTYPE_AS_LIST
, bdistance
->access_list
);
10872 bgp_distance_free(bdistance
);
10875 bgp_unlock_node(rn
);
10876 bgp_unlock_node(rn
);
10878 return CMD_SUCCESS
;
10881 /* Apply BGP information to distance method. */
10882 uint8_t bgp_distance_apply(struct prefix
*p
, struct bgp_path_info
*pinfo
,
10883 afi_t afi
, safi_t safi
, struct bgp
*bgp
)
10885 struct bgp_node
*rn
;
10888 struct bgp_distance
*bdistance
;
10889 struct access_list
*alist
;
10890 struct bgp_static
*bgp_static
;
10895 peer
= pinfo
->peer
;
10897 /* Check source address. */
10898 sockunion2hostprefix(&peer
->su
, &q
);
10899 rn
= bgp_node_match(bgp_distance_table
[afi
][safi
], &q
);
10901 bdistance
= bgp_distance_get_node(rn
);
10902 bgp_unlock_node(rn
);
10904 if (bdistance
->access_list
) {
10905 alist
= access_list_lookup(afi
, bdistance
->access_list
);
10907 && access_list_apply(alist
, p
) == FILTER_PERMIT
)
10908 return bdistance
->distance
;
10910 return bdistance
->distance
;
10913 /* Backdoor check. */
10914 rn
= bgp_node_lookup(bgp
->route
[afi
][safi
], p
);
10916 bgp_static
= bgp_static_get_node_info(rn
);
10917 bgp_unlock_node(rn
);
10919 if (bgp_static
->backdoor
) {
10920 if (bgp
->distance_local
[afi
][safi
])
10921 return bgp
->distance_local
[afi
][safi
];
10923 return ZEBRA_IBGP_DISTANCE_DEFAULT
;
10927 if (peer
->sort
== BGP_PEER_EBGP
) {
10928 if (bgp
->distance_ebgp
[afi
][safi
])
10929 return bgp
->distance_ebgp
[afi
][safi
];
10930 return ZEBRA_EBGP_DISTANCE_DEFAULT
;
10932 if (bgp
->distance_ibgp
[afi
][safi
])
10933 return bgp
->distance_ibgp
[afi
][safi
];
10934 return ZEBRA_IBGP_DISTANCE_DEFAULT
;
10938 DEFUN (bgp_distance
,
10940 "distance bgp (1-255) (1-255) (1-255)",
10941 "Define an administrative distance\n"
10943 "Distance for routes external to the AS\n"
10944 "Distance for routes internal to the AS\n"
10945 "Distance for local routes\n")
10947 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
10948 int idx_number
= 2;
10949 int idx_number_2
= 3;
10950 int idx_number_3
= 4;
10954 afi
= bgp_node_afi(vty
);
10955 safi
= bgp_node_safi(vty
);
10957 bgp
->distance_ebgp
[afi
][safi
] = atoi(argv
[idx_number
]->arg
);
10958 bgp
->distance_ibgp
[afi
][safi
] = atoi(argv
[idx_number_2
]->arg
);
10959 bgp
->distance_local
[afi
][safi
] = atoi(argv
[idx_number_3
]->arg
);
10960 return CMD_SUCCESS
;
10963 DEFUN (no_bgp_distance
,
10964 no_bgp_distance_cmd
,
10965 "no distance bgp [(1-255) (1-255) (1-255)]",
10967 "Define an administrative distance\n"
10969 "Distance for routes external to the AS\n"
10970 "Distance for routes internal to the AS\n"
10971 "Distance for local routes\n")
10973 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
10977 afi
= bgp_node_afi(vty
);
10978 safi
= bgp_node_safi(vty
);
10980 bgp
->distance_ebgp
[afi
][safi
] = 0;
10981 bgp
->distance_ibgp
[afi
][safi
] = 0;
10982 bgp
->distance_local
[afi
][safi
] = 0;
10983 return CMD_SUCCESS
;
10987 DEFUN (bgp_distance_source
,
10988 bgp_distance_source_cmd
,
10989 "distance (1-255) A.B.C.D/M",
10990 "Define an administrative distance\n"
10991 "Administrative distance\n"
10992 "IP source prefix\n")
10994 int idx_number
= 1;
10995 int idx_ipv4_prefixlen
= 2;
10996 bgp_distance_set(vty
, argv
[idx_number
]->arg
,
10997 argv
[idx_ipv4_prefixlen
]->arg
, NULL
);
10998 return CMD_SUCCESS
;
11001 DEFUN (no_bgp_distance_source
,
11002 no_bgp_distance_source_cmd
,
11003 "no distance (1-255) A.B.C.D/M",
11005 "Define an administrative distance\n"
11006 "Administrative distance\n"
11007 "IP source prefix\n")
11009 int idx_number
= 2;
11010 int idx_ipv4_prefixlen
= 3;
11011 bgp_distance_unset(vty
, argv
[idx_number
]->arg
,
11012 argv
[idx_ipv4_prefixlen
]->arg
, NULL
);
11013 return CMD_SUCCESS
;
11016 DEFUN (bgp_distance_source_access_list
,
11017 bgp_distance_source_access_list_cmd
,
11018 "distance (1-255) A.B.C.D/M WORD",
11019 "Define an administrative distance\n"
11020 "Administrative distance\n"
11021 "IP source prefix\n"
11022 "Access list name\n")
11024 int idx_number
= 1;
11025 int idx_ipv4_prefixlen
= 2;
11027 bgp_distance_set(vty
, argv
[idx_number
]->arg
,
11028 argv
[idx_ipv4_prefixlen
]->arg
, argv
[idx_word
]->arg
);
11029 return CMD_SUCCESS
;
11032 DEFUN (no_bgp_distance_source_access_list
,
11033 no_bgp_distance_source_access_list_cmd
,
11034 "no distance (1-255) A.B.C.D/M WORD",
11036 "Define an administrative distance\n"
11037 "Administrative distance\n"
11038 "IP source prefix\n"
11039 "Access list name\n")
11041 int idx_number
= 2;
11042 int idx_ipv4_prefixlen
= 3;
11044 bgp_distance_unset(vty
, argv
[idx_number
]->arg
,
11045 argv
[idx_ipv4_prefixlen
]->arg
, argv
[idx_word
]->arg
);
11046 return CMD_SUCCESS
;
11049 DEFUN (ipv6_bgp_distance_source
,
11050 ipv6_bgp_distance_source_cmd
,
11051 "distance (1-255) X:X::X:X/M",
11052 "Define an administrative distance\n"
11053 "Administrative distance\n"
11054 "IP source prefix\n")
11056 bgp_distance_set(vty
, argv
[1]->arg
, argv
[2]->arg
, NULL
);
11057 return CMD_SUCCESS
;
11060 DEFUN (no_ipv6_bgp_distance_source
,
11061 no_ipv6_bgp_distance_source_cmd
,
11062 "no distance (1-255) X:X::X:X/M",
11064 "Define an administrative distance\n"
11065 "Administrative distance\n"
11066 "IP source prefix\n")
11068 bgp_distance_unset(vty
, argv
[2]->arg
, argv
[3]->arg
, NULL
);
11069 return CMD_SUCCESS
;
11072 DEFUN (ipv6_bgp_distance_source_access_list
,
11073 ipv6_bgp_distance_source_access_list_cmd
,
11074 "distance (1-255) X:X::X:X/M WORD",
11075 "Define an administrative distance\n"
11076 "Administrative distance\n"
11077 "IP source prefix\n"
11078 "Access list name\n")
11080 bgp_distance_set(vty
, argv
[1]->arg
, argv
[2]->arg
, argv
[3]->arg
);
11081 return CMD_SUCCESS
;
11084 DEFUN (no_ipv6_bgp_distance_source_access_list
,
11085 no_ipv6_bgp_distance_source_access_list_cmd
,
11086 "no distance (1-255) X:X::X:X/M WORD",
11088 "Define an administrative distance\n"
11089 "Administrative distance\n"
11090 "IP source prefix\n"
11091 "Access list name\n")
11093 bgp_distance_unset(vty
, argv
[2]->arg
, argv
[3]->arg
, argv
[4]->arg
);
11094 return CMD_SUCCESS
;
11097 DEFUN (bgp_damp_set
,
11099 "bgp dampening [(1-45) [(1-20000) (1-20000) (1-255)]]",
11100 "BGP Specific commands\n"
11101 "Enable route-flap dampening\n"
11102 "Half-life time for the penalty\n"
11103 "Value to start reusing a route\n"
11104 "Value to start suppressing a route\n"
11105 "Maximum duration to suppress a stable route\n")
11107 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
11108 int idx_half_life
= 2;
11110 int idx_suppress
= 4;
11111 int idx_max_suppress
= 5;
11112 int half
= DEFAULT_HALF_LIFE
* 60;
11113 int reuse
= DEFAULT_REUSE
;
11114 int suppress
= DEFAULT_SUPPRESS
;
11115 int max
= 4 * half
;
11118 half
= atoi(argv
[idx_half_life
]->arg
) * 60;
11119 reuse
= atoi(argv
[idx_reuse
]->arg
);
11120 suppress
= atoi(argv
[idx_suppress
]->arg
);
11121 max
= atoi(argv
[idx_max_suppress
]->arg
) * 60;
11122 } else if (argc
== 3) {
11123 half
= atoi(argv
[idx_half_life
]->arg
) * 60;
11127 if (suppress
< reuse
) {
11129 "Suppress value cannot be less than reuse value \n");
11133 return bgp_damp_enable(bgp
, bgp_node_afi(vty
), bgp_node_safi(vty
), half
,
11134 reuse
, suppress
, max
);
11137 DEFUN (bgp_damp_unset
,
11138 bgp_damp_unset_cmd
,
11139 "no bgp dampening [(1-45) [(1-20000) (1-20000) (1-255)]]",
11141 "BGP Specific commands\n"
11142 "Enable route-flap dampening\n"
11143 "Half-life time for the penalty\n"
11144 "Value to start reusing a route\n"
11145 "Value to start suppressing a route\n"
11146 "Maximum duration to suppress a stable route\n")
11148 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
11149 return bgp_damp_disable(bgp
, bgp_node_afi(vty
), bgp_node_safi(vty
));
11152 /* Display specified route of BGP table. */
11153 static int bgp_clear_damp_route(struct vty
*vty
, const char *view_name
,
11154 const char *ip_str
, afi_t afi
, safi_t safi
,
11155 struct prefix_rd
*prd
, int prefix_check
)
11158 struct prefix match
;
11159 struct bgp_node
*rn
;
11160 struct bgp_node
*rm
;
11161 struct bgp_path_info
*pi
;
11162 struct bgp_path_info
*pi_temp
;
11164 struct bgp_table
*table
;
11166 /* BGP structure lookup. */
11168 bgp
= bgp_lookup_by_name(view_name
);
11170 vty_out(vty
, "%% Can't find BGP instance %s\n",
11172 return CMD_WARNING
;
11175 bgp
= bgp_get_default();
11177 vty_out(vty
, "%% No BGP process is configured\n");
11178 return CMD_WARNING
;
11182 /* Check IP address argument. */
11183 ret
= str2prefix(ip_str
, &match
);
11185 vty_out(vty
, "%% address is malformed\n");
11186 return CMD_WARNING
;
11189 match
.family
= afi2family(afi
);
11191 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_ENCAP
)
11192 || (safi
== SAFI_EVPN
)) {
11193 for (rn
= bgp_table_top(bgp
->rib
[AFI_IP
][safi
]); rn
;
11194 rn
= bgp_route_next(rn
)) {
11195 if (prd
&& memcmp(rn
->p
.u
.val
, prd
->val
, 8) != 0)
11197 if ((table
= rn
->info
) == NULL
)
11199 if ((rm
= bgp_node_match(table
, &match
)) == NULL
)
11203 || rm
->p
.prefixlen
== match
.prefixlen
) {
11206 if (pi
->extra
&& pi
->extra
->damp_info
) {
11207 pi_temp
= pi
->next
;
11208 bgp_damp_info_free(
11209 pi
->extra
->damp_info
,
11217 bgp_unlock_node(rm
);
11220 if ((rn
= bgp_node_match(bgp
->rib
[afi
][safi
], &match
))
11223 || rn
->p
.prefixlen
== match
.prefixlen
) {
11226 if (pi
->extra
&& pi
->extra
->damp_info
) {
11227 pi_temp
= pi
->next
;
11228 bgp_damp_info_free(
11229 pi
->extra
->damp_info
,
11237 bgp_unlock_node(rn
);
11241 return CMD_SUCCESS
;
11244 DEFUN (clear_ip_bgp_dampening
,
11245 clear_ip_bgp_dampening_cmd
,
11246 "clear ip bgp dampening",
11250 "Clear route flap dampening information\n")
11252 bgp_damp_info_clean();
11253 return CMD_SUCCESS
;
11256 DEFUN (clear_ip_bgp_dampening_prefix
,
11257 clear_ip_bgp_dampening_prefix_cmd
,
11258 "clear ip bgp dampening A.B.C.D/M",
11262 "Clear route flap dampening information\n"
11265 int idx_ipv4_prefixlen
= 4;
11266 return bgp_clear_damp_route(vty
, NULL
, argv
[idx_ipv4_prefixlen
]->arg
,
11267 AFI_IP
, SAFI_UNICAST
, NULL
, 1);
11270 DEFUN (clear_ip_bgp_dampening_address
,
11271 clear_ip_bgp_dampening_address_cmd
,
11272 "clear ip bgp dampening A.B.C.D",
11276 "Clear route flap dampening information\n"
11277 "Network to clear damping information\n")
11280 return bgp_clear_damp_route(vty
, NULL
, argv
[idx_ipv4
]->arg
, AFI_IP
,
11281 SAFI_UNICAST
, NULL
, 0);
11284 DEFUN (clear_ip_bgp_dampening_address_mask
,
11285 clear_ip_bgp_dampening_address_mask_cmd
,
11286 "clear ip bgp dampening A.B.C.D A.B.C.D",
11290 "Clear route flap dampening information\n"
11291 "Network to clear damping information\n"
11295 int idx_ipv4_2
= 5;
11297 char prefix_str
[BUFSIZ
];
11299 ret
= netmask_str2prefix_str(argv
[idx_ipv4
]->arg
, argv
[idx_ipv4_2
]->arg
,
11302 vty_out(vty
, "%% Inconsistent address and mask\n");
11303 return CMD_WARNING
;
11306 return bgp_clear_damp_route(vty
, NULL
, prefix_str
, AFI_IP
, SAFI_UNICAST
,
11310 /* also used for encap safi */
11311 static void bgp_config_write_network_vpn(struct vty
*vty
, struct bgp
*bgp
,
11312 afi_t afi
, safi_t safi
)
11314 struct bgp_node
*prn
;
11315 struct bgp_node
*rn
;
11316 struct bgp_table
*table
;
11318 struct prefix_rd
*prd
;
11319 struct bgp_static
*bgp_static
;
11320 mpls_label_t label
;
11321 char buf
[SU_ADDRSTRLEN
];
11322 char rdbuf
[RD_ADDRSTRLEN
];
11324 /* Network configuration. */
11325 for (prn
= bgp_table_top(bgp
->route
[afi
][safi
]); prn
;
11326 prn
= bgp_route_next(prn
)) {
11327 if ((table
= prn
->info
) == NULL
)
11330 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
)) {
11331 bgp_static
= bgp_static_get_node_info(rn
);
11332 if (bgp_static
== NULL
)
11336 prd
= (struct prefix_rd
*)&prn
->p
;
11338 /* "network" configuration display. */
11339 prefix_rd2str(prd
, rdbuf
, sizeof(rdbuf
));
11340 label
= decode_label(&bgp_static
->label
);
11342 vty_out(vty
, " network %s/%d rd %s",
11343 inet_ntop(p
->family
, &p
->u
.prefix
, buf
,
11345 p
->prefixlen
, rdbuf
);
11346 if (safi
== SAFI_MPLS_VPN
)
11347 vty_out(vty
, " label %u", label
);
11349 if (bgp_static
->rmap
.name
)
11350 vty_out(vty
, " route-map %s",
11351 bgp_static
->rmap
.name
);
11353 if (bgp_static
->backdoor
)
11354 vty_out(vty
, " backdoor");
11356 vty_out(vty
, "\n");
11361 static void bgp_config_write_network_evpn(struct vty
*vty
, struct bgp
*bgp
,
11362 afi_t afi
, safi_t safi
)
11364 struct bgp_node
*prn
;
11365 struct bgp_node
*rn
;
11366 struct bgp_table
*table
;
11368 struct prefix_rd
*prd
;
11369 struct bgp_static
*bgp_static
;
11370 char buf
[PREFIX_STRLEN
* 2];
11371 char buf2
[SU_ADDRSTRLEN
];
11372 char rdbuf
[RD_ADDRSTRLEN
];
11374 /* Network configuration. */
11375 for (prn
= bgp_table_top(bgp
->route
[afi
][safi
]); prn
;
11376 prn
= bgp_route_next(prn
)) {
11377 if ((table
= prn
->info
) == NULL
)
11380 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
)) {
11381 bgp_static
= bgp_static_get_node_info(rn
);
11382 if (bgp_static
== NULL
)
11385 char *macrouter
= NULL
;
11388 if (bgp_static
->router_mac
)
11389 macrouter
= prefix_mac2str(
11390 bgp_static
->router_mac
, NULL
, 0);
11391 if (bgp_static
->eth_s_id
)
11392 esi
= esi2str(bgp_static
->eth_s_id
);
11394 prd
= (struct prefix_rd
*)&prn
->p
;
11396 /* "network" configuration display. */
11397 prefix_rd2str(prd
, rdbuf
, sizeof(rdbuf
));
11398 if (p
->u
.prefix_evpn
.route_type
== 5) {
11399 char local_buf
[PREFIX_STRLEN
];
11400 uint8_t family
= is_evpn_prefix_ipaddr_v4((
11401 struct prefix_evpn
*)p
)
11405 &p
->u
.prefix_evpn
.prefix_addr
.ip
.ip
.addr
,
11406 local_buf
, PREFIX_STRLEN
);
11407 sprintf(buf
, "%s/%u", local_buf
,
11408 p
->u
.prefix_evpn
.prefix_addr
.ip_prefix_length
);
11410 prefix2str(p
, buf
, sizeof(buf
));
11413 if (bgp_static
->gatewayIp
.family
== AF_INET
11414 || bgp_static
->gatewayIp
.family
== AF_INET6
)
11415 inet_ntop(bgp_static
->gatewayIp
.family
,
11416 &bgp_static
->gatewayIp
.u
.prefix
, buf2
,
11419 " network %s rd %s ethtag %u label %u esi %s gwip %s routermac %s\n",
11421 p
->u
.prefix_evpn
.prefix_addr
.eth_tag
,
11422 decode_label(&bgp_static
->label
), esi
, buf2
,
11426 XFREE(MTYPE_TMP
, macrouter
);
11428 XFREE(MTYPE_TMP
, esi
);
11433 /* Configuration of static route announcement and aggregate
11435 void bgp_config_write_network(struct vty
*vty
, struct bgp
*bgp
, afi_t afi
,
11438 struct bgp_node
*rn
;
11440 struct bgp_static
*bgp_static
;
11441 struct bgp_aggregate
*bgp_aggregate
;
11442 char buf
[SU_ADDRSTRLEN
];
11444 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_ENCAP
)) {
11445 bgp_config_write_network_vpn(vty
, bgp
, afi
, safi
);
11449 if (afi
== AFI_L2VPN
&& safi
== SAFI_EVPN
) {
11450 bgp_config_write_network_evpn(vty
, bgp
, afi
, safi
);
11454 /* Network configuration. */
11455 for (rn
= bgp_table_top(bgp
->route
[afi
][safi
]); rn
;
11456 rn
= bgp_route_next(rn
)) {
11457 bgp_static
= bgp_static_get_node_info(rn
);
11458 if (bgp_static
== NULL
)
11463 /* "network" configuration display. */
11464 if (bgp_option_check(BGP_OPT_CONFIG_CISCO
) && afi
== AFI_IP
) {
11465 uint32_t destination
;
11466 struct in_addr netmask
;
11468 destination
= ntohl(p
->u
.prefix4
.s_addr
);
11469 masklen2ip(p
->prefixlen
, &netmask
);
11470 vty_out(vty
, " network %s",
11471 inet_ntop(p
->family
, &p
->u
.prefix
, buf
,
11474 if ((IN_CLASSC(destination
) && p
->prefixlen
== 24)
11475 || (IN_CLASSB(destination
) && p
->prefixlen
== 16)
11476 || (IN_CLASSA(destination
) && p
->prefixlen
== 8)
11477 || p
->u
.prefix4
.s_addr
== 0) {
11478 /* Natural mask is not display. */
11480 vty_out(vty
, " mask %s", inet_ntoa(netmask
));
11482 vty_out(vty
, " network %s/%d",
11483 inet_ntop(p
->family
, &p
->u
.prefix
, buf
,
11488 if (bgp_static
->label_index
!= BGP_INVALID_LABEL_INDEX
)
11489 vty_out(vty
, " label-index %u",
11490 bgp_static
->label_index
);
11492 if (bgp_static
->rmap
.name
)
11493 vty_out(vty
, " route-map %s", bgp_static
->rmap
.name
);
11495 if (bgp_static
->backdoor
)
11496 vty_out(vty
, " backdoor");
11498 vty_out(vty
, "\n");
11501 /* Aggregate-address configuration. */
11502 for (rn
= bgp_table_top(bgp
->aggregate
[afi
][safi
]); rn
;
11503 rn
= bgp_route_next(rn
)) {
11504 bgp_aggregate
= bgp_aggregate_get_node_info(rn
);
11505 if (bgp_aggregate
== NULL
)
11510 if (bgp_option_check(BGP_OPT_CONFIG_CISCO
) && afi
== AFI_IP
) {
11511 struct in_addr netmask
;
11513 masklen2ip(p
->prefixlen
, &netmask
);
11514 vty_out(vty
, " aggregate-address %s %s",
11515 inet_ntop(p
->family
, &p
->u
.prefix
, buf
,
11517 inet_ntoa(netmask
));
11519 vty_out(vty
, " aggregate-address %s/%d",
11520 inet_ntop(p
->family
, &p
->u
.prefix
, buf
,
11525 if (bgp_aggregate
->as_set
)
11526 vty_out(vty
, " as-set");
11528 if (bgp_aggregate
->summary_only
)
11529 vty_out(vty
, " summary-only");
11531 vty_out(vty
, "\n");
11535 void bgp_config_write_distance(struct vty
*vty
, struct bgp
*bgp
, afi_t afi
,
11538 struct bgp_node
*rn
;
11539 struct bgp_distance
*bdistance
;
11541 /* Distance configuration. */
11542 if (bgp
->distance_ebgp
[afi
][safi
] && bgp
->distance_ibgp
[afi
][safi
]
11543 && bgp
->distance_local
[afi
][safi
]
11544 && (bgp
->distance_ebgp
[afi
][safi
] != ZEBRA_EBGP_DISTANCE_DEFAULT
11545 || bgp
->distance_ibgp
[afi
][safi
] != ZEBRA_IBGP_DISTANCE_DEFAULT
11546 || bgp
->distance_local
[afi
][safi
]
11547 != ZEBRA_IBGP_DISTANCE_DEFAULT
)) {
11548 vty_out(vty
, " distance bgp %d %d %d\n",
11549 bgp
->distance_ebgp
[afi
][safi
],
11550 bgp
->distance_ibgp
[afi
][safi
],
11551 bgp
->distance_local
[afi
][safi
]);
11554 for (rn
= bgp_table_top(bgp_distance_table
[afi
][safi
]); rn
;
11555 rn
= bgp_route_next(rn
)) {
11556 bdistance
= bgp_distance_get_node(rn
);
11557 if (bdistance
!= NULL
) {
11558 char buf
[PREFIX_STRLEN
];
11560 vty_out(vty
, " distance %d %s %s\n",
11561 bdistance
->distance
,
11562 prefix2str(&rn
->p
, buf
, sizeof(buf
)),
11563 bdistance
->access_list
? bdistance
->access_list
11569 /* Allocate routing table structure and install commands. */
11570 void bgp_route_init(void)
11575 /* Init BGP distance table. */
11576 FOREACH_AFI_SAFI (afi
, safi
)
11577 bgp_distance_table
[afi
][safi
] = bgp_table_init(NULL
, afi
, safi
);
11579 /* IPv4 BGP commands. */
11580 install_element(BGP_NODE
, &bgp_table_map_cmd
);
11581 install_element(BGP_NODE
, &bgp_network_cmd
);
11582 install_element(BGP_NODE
, &no_bgp_table_map_cmd
);
11584 install_element(BGP_NODE
, &aggregate_address_cmd
);
11585 install_element(BGP_NODE
, &aggregate_address_mask_cmd
);
11586 install_element(BGP_NODE
, &no_aggregate_address_cmd
);
11587 install_element(BGP_NODE
, &no_aggregate_address_mask_cmd
);
11589 /* IPv4 unicast configuration. */
11590 install_element(BGP_IPV4_NODE
, &bgp_table_map_cmd
);
11591 install_element(BGP_IPV4_NODE
, &bgp_network_cmd
);
11592 install_element(BGP_IPV4_NODE
, &no_bgp_table_map_cmd
);
11594 install_element(BGP_IPV4_NODE
, &aggregate_address_cmd
);
11595 install_element(BGP_IPV4_NODE
, &aggregate_address_mask_cmd
);
11596 install_element(BGP_IPV4_NODE
, &no_aggregate_address_cmd
);
11597 install_element(BGP_IPV4_NODE
, &no_aggregate_address_mask_cmd
);
11599 /* IPv4 multicast configuration. */
11600 install_element(BGP_IPV4M_NODE
, &bgp_table_map_cmd
);
11601 install_element(BGP_IPV4M_NODE
, &bgp_network_cmd
);
11602 install_element(BGP_IPV4M_NODE
, &no_bgp_table_map_cmd
);
11603 install_element(BGP_IPV4M_NODE
, &aggregate_address_cmd
);
11604 install_element(BGP_IPV4M_NODE
, &aggregate_address_mask_cmd
);
11605 install_element(BGP_IPV4M_NODE
, &no_aggregate_address_cmd
);
11606 install_element(BGP_IPV4M_NODE
, &no_aggregate_address_mask_cmd
);
11608 /* IPv4 labeled-unicast configuration. */
11609 install_element(VIEW_NODE
, &show_ip_bgp_instance_all_cmd
);
11610 install_element(VIEW_NODE
, &show_ip_bgp_cmd
);
11611 install_element(VIEW_NODE
, &show_ip_bgp_json_cmd
);
11612 install_element(VIEW_NODE
, &show_ip_bgp_route_cmd
);
11613 install_element(VIEW_NODE
, &show_ip_bgp_regexp_cmd
);
11615 install_element(VIEW_NODE
,
11616 &show_ip_bgp_instance_neighbor_advertised_route_cmd
);
11617 install_element(VIEW_NODE
, &show_ip_bgp_neighbor_routes_cmd
);
11618 install_element(VIEW_NODE
,
11619 &show_ip_bgp_neighbor_received_prefix_filter_cmd
);
11620 #ifdef KEEP_OLD_VPN_COMMANDS
11621 install_element(VIEW_NODE
, &show_ip_bgp_vpn_all_route_prefix_cmd
);
11622 #endif /* KEEP_OLD_VPN_COMMANDS */
11623 install_element(VIEW_NODE
, &show_bgp_afi_vpn_rd_route_cmd
);
11624 install_element(VIEW_NODE
,
11625 &show_ip_bgp_l2vpn_evpn_all_route_prefix_cmd
);
11627 /* BGP dampening clear commands */
11628 install_element(ENABLE_NODE
, &clear_ip_bgp_dampening_cmd
);
11629 install_element(ENABLE_NODE
, &clear_ip_bgp_dampening_prefix_cmd
);
11631 install_element(ENABLE_NODE
, &clear_ip_bgp_dampening_address_cmd
);
11632 install_element(ENABLE_NODE
, &clear_ip_bgp_dampening_address_mask_cmd
);
11635 install_element(ENABLE_NODE
,
11636 &show_ip_bgp_instance_neighbor_prefix_counts_cmd
);
11637 #ifdef KEEP_OLD_VPN_COMMANDS
11638 install_element(ENABLE_NODE
,
11639 &show_ip_bgp_vpn_neighbor_prefix_counts_cmd
);
11640 #endif /* KEEP_OLD_VPN_COMMANDS */
11642 /* New config IPv6 BGP commands. */
11643 install_element(BGP_IPV6_NODE
, &bgp_table_map_cmd
);
11644 install_element(BGP_IPV6_NODE
, &ipv6_bgp_network_cmd
);
11645 install_element(BGP_IPV6_NODE
, &no_bgp_table_map_cmd
);
11647 install_element(BGP_IPV6_NODE
, &ipv6_aggregate_address_cmd
);
11648 install_element(BGP_IPV6_NODE
, &no_ipv6_aggregate_address_cmd
);
11650 install_element(BGP_IPV6M_NODE
, &ipv6_bgp_network_cmd
);
11652 install_element(BGP_NODE
, &bgp_distance_cmd
);
11653 install_element(BGP_NODE
, &no_bgp_distance_cmd
);
11654 install_element(BGP_NODE
, &bgp_distance_source_cmd
);
11655 install_element(BGP_NODE
, &no_bgp_distance_source_cmd
);
11656 install_element(BGP_NODE
, &bgp_distance_source_access_list_cmd
);
11657 install_element(BGP_NODE
, &no_bgp_distance_source_access_list_cmd
);
11658 install_element(BGP_IPV4_NODE
, &bgp_distance_cmd
);
11659 install_element(BGP_IPV4_NODE
, &no_bgp_distance_cmd
);
11660 install_element(BGP_IPV4_NODE
, &bgp_distance_source_cmd
);
11661 install_element(BGP_IPV4_NODE
, &no_bgp_distance_source_cmd
);
11662 install_element(BGP_IPV4_NODE
, &bgp_distance_source_access_list_cmd
);
11663 install_element(BGP_IPV4_NODE
, &no_bgp_distance_source_access_list_cmd
);
11664 install_element(BGP_IPV4M_NODE
, &bgp_distance_cmd
);
11665 install_element(BGP_IPV4M_NODE
, &no_bgp_distance_cmd
);
11666 install_element(BGP_IPV4M_NODE
, &bgp_distance_source_cmd
);
11667 install_element(BGP_IPV4M_NODE
, &no_bgp_distance_source_cmd
);
11668 install_element(BGP_IPV4M_NODE
, &bgp_distance_source_access_list_cmd
);
11669 install_element(BGP_IPV4M_NODE
,
11670 &no_bgp_distance_source_access_list_cmd
);
11671 install_element(BGP_IPV6_NODE
, &bgp_distance_cmd
);
11672 install_element(BGP_IPV6_NODE
, &no_bgp_distance_cmd
);
11673 install_element(BGP_IPV6_NODE
, &ipv6_bgp_distance_source_cmd
);
11674 install_element(BGP_IPV6_NODE
, &no_ipv6_bgp_distance_source_cmd
);
11675 install_element(BGP_IPV6_NODE
,
11676 &ipv6_bgp_distance_source_access_list_cmd
);
11677 install_element(BGP_IPV6_NODE
,
11678 &no_ipv6_bgp_distance_source_access_list_cmd
);
11679 install_element(BGP_IPV6M_NODE
, &bgp_distance_cmd
);
11680 install_element(BGP_IPV6M_NODE
, &no_bgp_distance_cmd
);
11681 install_element(BGP_IPV6M_NODE
, &ipv6_bgp_distance_source_cmd
);
11682 install_element(BGP_IPV6M_NODE
, &no_ipv6_bgp_distance_source_cmd
);
11683 install_element(BGP_IPV6M_NODE
,
11684 &ipv6_bgp_distance_source_access_list_cmd
);
11685 install_element(BGP_IPV6M_NODE
,
11686 &no_ipv6_bgp_distance_source_access_list_cmd
);
11688 install_element(BGP_NODE
, &bgp_damp_set_cmd
);
11689 install_element(BGP_NODE
, &bgp_damp_unset_cmd
);
11690 install_element(BGP_IPV4_NODE
, &bgp_damp_set_cmd
);
11691 install_element(BGP_IPV4_NODE
, &bgp_damp_unset_cmd
);
11693 /* IPv4 Multicast Mode */
11694 install_element(BGP_IPV4M_NODE
, &bgp_damp_set_cmd
);
11695 install_element(BGP_IPV4M_NODE
, &bgp_damp_unset_cmd
);
11697 /* Large Communities */
11698 install_element(VIEW_NODE
, &show_ip_bgp_large_community_list_cmd
);
11699 install_element(VIEW_NODE
, &show_ip_bgp_large_community_cmd
);
11701 /* show bgp ipv4 flowspec detailed */
11702 install_element(VIEW_NODE
, &show_ip_bgp_flowspec_routes_detailed_cmd
);
11706 void bgp_route_finish(void)
11711 FOREACH_AFI_SAFI (afi
, safi
) {
11712 bgp_table_unlock(bgp_distance_table
[afi
][safi
]);
11713 bgp_distance_table
[afi
][safi
] = NULL
;