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_info_extra */
168 static struct bgp_info_extra
*bgp_info_extra_new(void)
170 struct bgp_info_extra
*new;
171 new = XCALLOC(MTYPE_BGP_ROUTE_EXTRA
, sizeof(struct bgp_info_extra
));
172 new->label
[0] = MPLS_INVALID_LABEL
;
177 static void bgp_info_extra_free(struct bgp_info_extra
**extra
)
179 struct bgp_info_extra
*e
;
181 if (!extra
|| !*extra
)
186 bgp_damp_info_free(e
->damp_info
, 0);
190 struct bgp_info
*bi
= (struct bgp_info
*)e
->parent
;
193 /* FIXME: since multiple e may have the same e->parent
194 * and e->parent->net is holding a refcount for each
195 * of them, we need to do some fudging here.
197 * WARNING: if bi->net->lock drops to 0, bi may be
198 * freed as well (because bi->net was holding the
199 * last reference to bi) => write after free!
203 bi
= bgp_info_lock(bi
);
204 refcount
= bi
->net
->lock
- 1;
205 bgp_unlock_node((struct bgp_node
*)bi
->net
);
210 bgp_info_unlock(e
->parent
);
215 bgp_unlock(e
->bgp_orig
);
217 if ((*extra
)->bgp_fs_pbr
)
218 list_delete_and_null(&((*extra
)->bgp_fs_pbr
));
219 XFREE(MTYPE_BGP_ROUTE_EXTRA
, *extra
);
224 /* Get bgp_info extra information for the given bgp_info, lazy allocated
227 struct bgp_info_extra
*bgp_info_extra_get(struct bgp_info
*ri
)
230 ri
->extra
= bgp_info_extra_new();
234 /* Allocate new bgp info structure. */
235 struct bgp_info
*bgp_info_new(void)
237 return XCALLOC(MTYPE_BGP_ROUTE
, sizeof(struct bgp_info
));
240 /* Free bgp route information. */
241 static void bgp_info_free(struct bgp_info
*binfo
)
244 bgp_attr_unintern(&binfo
->attr
);
246 bgp_unlink_nexthop(binfo
);
247 bgp_info_extra_free(&binfo
->extra
);
248 bgp_info_mpath_free(&binfo
->mpath
);
250 peer_unlock(binfo
->peer
); /* bgp_info peer reference */
252 XFREE(MTYPE_BGP_ROUTE
, binfo
);
255 struct bgp_info
*bgp_info_lock(struct bgp_info
*binfo
)
261 struct bgp_info
*bgp_info_unlock(struct bgp_info
*binfo
)
263 assert(binfo
&& binfo
->lock
> 0);
266 if (binfo
->lock
== 0) {
268 zlog_debug ("%s: unlocked and freeing", __func__
);
269 zlog_backtrace (LOG_DEBUG
);
271 bgp_info_free(binfo
);
276 if (binfo
->lock
== 1)
278 zlog_debug ("%s: unlocked to 1", __func__
);
279 zlog_backtrace (LOG_DEBUG
);
286 void bgp_info_add(struct bgp_node
*rn
, struct bgp_info
*ri
)
288 struct bgp_info
*top
;
300 peer_lock(ri
->peer
); /* bgp_info peer reference */
303 /* Do the actual removal of info from RIB, for use by bgp_process
304 completion callback *only* */
305 void bgp_info_reap(struct bgp_node
*rn
, struct bgp_info
*ri
)
308 ri
->next
->prev
= ri
->prev
;
310 ri
->prev
->next
= ri
->next
;
314 bgp_info_mpath_dequeue(ri
);
319 void bgp_info_delete(struct bgp_node
*rn
, struct bgp_info
*ri
)
321 bgp_info_set_flag(rn
, ri
, BGP_INFO_REMOVED
);
322 /* set of previous already took care of pcount */
323 UNSET_FLAG(ri
->flags
, BGP_INFO_VALID
);
326 /* undo the effects of a previous call to bgp_info_delete; typically
327 called when a route is deleted and then quickly re-added before the
328 deletion has been processed */
329 void bgp_info_restore(struct bgp_node
*rn
, struct bgp_info
*ri
)
331 bgp_info_unset_flag(rn
, ri
, BGP_INFO_REMOVED
);
332 /* unset of previous already took care of pcount */
333 SET_FLAG(ri
->flags
, BGP_INFO_VALID
);
336 /* Adjust pcount as required */
337 static void bgp_pcount_adjust(struct bgp_node
*rn
, struct bgp_info
*ri
)
339 struct bgp_table
*table
;
341 assert(rn
&& bgp_node_table(rn
));
342 assert(ri
&& ri
->peer
&& ri
->peer
->bgp
);
344 table
= bgp_node_table(rn
);
346 if (ri
->peer
== ri
->peer
->bgp
->peer_self
)
349 if (!BGP_INFO_COUNTABLE(ri
)
350 && CHECK_FLAG(ri
->flags
, BGP_INFO_COUNTED
)) {
352 UNSET_FLAG(ri
->flags
, BGP_INFO_COUNTED
);
354 /* slight hack, but more robust against errors. */
355 if (ri
->peer
->pcount
[table
->afi
][table
->safi
])
356 ri
->peer
->pcount
[table
->afi
][table
->safi
]--;
358 flog_err(EC_LIB_DEVELOPMENT
,
359 "Asked to decrement 0 prefix count for peer");
360 } else if (BGP_INFO_COUNTABLE(ri
)
361 && !CHECK_FLAG(ri
->flags
, BGP_INFO_COUNTED
)) {
362 SET_FLAG(ri
->flags
, BGP_INFO_COUNTED
);
363 ri
->peer
->pcount
[table
->afi
][table
->safi
]++;
367 static int bgp_label_index_differs(struct bgp_info
*ri1
, struct bgp_info
*ri2
)
369 return (!(ri1
->attr
->label_index
== ri2
->attr
->label_index
));
372 /* Set/unset bgp_info flags, adjusting any other state as needed.
373 * This is here primarily to keep prefix-count in check.
375 void bgp_info_set_flag(struct bgp_node
*rn
, struct bgp_info
*ri
, uint32_t flag
)
377 SET_FLAG(ri
->flags
, flag
);
379 /* early bath if we know it's not a flag that changes countability state
381 if (!CHECK_FLAG(flag
,
382 BGP_INFO_VALID
| BGP_INFO_HISTORY
| BGP_INFO_REMOVED
))
385 bgp_pcount_adjust(rn
, ri
);
388 void bgp_info_unset_flag(struct bgp_node
*rn
, struct bgp_info
*ri
,
391 UNSET_FLAG(ri
->flags
, flag
);
393 /* early bath if we know it's not a flag that changes countability state
395 if (!CHECK_FLAG(flag
,
396 BGP_INFO_VALID
| BGP_INFO_HISTORY
| BGP_INFO_REMOVED
))
399 bgp_pcount_adjust(rn
, ri
);
402 /* Get MED value. If MED value is missing and "bgp bestpath
403 missing-as-worst" is specified, treat it as the worst value. */
404 static uint32_t bgp_med_value(struct attr
*attr
, struct bgp
*bgp
)
406 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
))
409 if (bgp_flag_check(bgp
, BGP_FLAG_MED_MISSING_AS_WORST
))
416 void bgp_info_path_with_addpath_rx_str(struct bgp_info
*ri
, char *buf
)
418 if (ri
->addpath_rx_id
)
419 sprintf(buf
, "path %s (addpath rxid %d)", ri
->peer
->host
,
422 sprintf(buf
, "path %s", ri
->peer
->host
);
425 /* Compare two bgp route entity. If 'new' is preferable over 'exist' return 1.
427 static int bgp_info_cmp(struct bgp
*bgp
, struct bgp_info
*new,
428 struct bgp_info
*exist
, int *paths_eq
,
429 struct bgp_maxpaths_cfg
*mpath_cfg
, int debug
,
430 char *pfx_buf
, afi_t afi
, safi_t safi
)
432 struct attr
*newattr
, *existattr
;
433 bgp_peer_sort_t new_sort
;
434 bgp_peer_sort_t exist_sort
;
440 uint32_t exist_weight
;
441 uint32_t newm
, existm
;
442 struct in_addr new_id
;
443 struct in_addr exist_id
;
446 int internal_as_route
;
449 char new_buf
[PATH_ADDPATH_STR_BUFFER
];
450 char exist_buf
[PATH_ADDPATH_STR_BUFFER
];
452 uint32_t exist_mm_seq
;
459 zlog_debug("%s: new is NULL", pfx_buf
);
464 bgp_info_path_with_addpath_rx_str(new, new_buf
);
468 zlog_debug("%s: %s is the initial bestpath", pfx_buf
,
474 bgp_info_path_with_addpath_rx_str(exist
, exist_buf
);
475 zlog_debug("%s: Comparing %s flags 0x%x with %s flags 0x%x",
476 pfx_buf
, new_buf
, new->flags
, exist_buf
,
481 existattr
= exist
->attr
;
483 /* For EVPN routes, we cannot just go by local vs remote, we have to
484 * look at the MAC mobility sequence number, if present.
486 if (safi
== SAFI_EVPN
) {
487 /* This is an error condition described in RFC 7432 Section
489 * states that in this scenario "the PE MUST alert the operator"
491 * does not state what other action to take. In order to provide
493 * consistency in this scenario we are going to prefer the path
497 if (newattr
->sticky
!= existattr
->sticky
) {
499 prefix2str(&new->net
->p
, pfx_buf
,
501 * PREFIX2STR_BUFFER
);
502 bgp_info_path_with_addpath_rx_str(new, new_buf
);
503 bgp_info_path_with_addpath_rx_str(exist
,
507 if (newattr
->sticky
&& !existattr
->sticky
) {
510 "%s: %s wins over %s due to sticky MAC flag",
511 pfx_buf
, new_buf
, exist_buf
);
515 if (!newattr
->sticky
&& existattr
->sticky
) {
518 "%s: %s loses to %s due to sticky MAC flag",
519 pfx_buf
, new_buf
, exist_buf
);
524 new_mm_seq
= mac_mobility_seqnum(newattr
);
525 exist_mm_seq
= mac_mobility_seqnum(existattr
);
527 if (new_mm_seq
> exist_mm_seq
) {
530 "%s: %s wins over %s due to MM seq %u > %u",
531 pfx_buf
, new_buf
, exist_buf
, new_mm_seq
,
536 if (new_mm_seq
< exist_mm_seq
) {
539 "%s: %s loses to %s due to MM seq %u < %u",
540 pfx_buf
, new_buf
, exist_buf
, new_mm_seq
,
546 /* 1. Weight check. */
547 new_weight
= newattr
->weight
;
548 exist_weight
= existattr
->weight
;
550 if (new_weight
> exist_weight
) {
552 zlog_debug("%s: %s wins over %s due to weight %d > %d",
553 pfx_buf
, new_buf
, exist_buf
, new_weight
,
558 if (new_weight
< exist_weight
) {
560 zlog_debug("%s: %s loses to %s due to weight %d < %d",
561 pfx_buf
, new_buf
, exist_buf
, new_weight
,
566 /* 2. Local preference check. */
567 new_pref
= exist_pref
= bgp
->default_local_pref
;
569 if (newattr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
))
570 new_pref
= newattr
->local_pref
;
571 if (existattr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
))
572 exist_pref
= existattr
->local_pref
;
574 if (new_pref
> exist_pref
) {
577 "%s: %s wins over %s due to localpref %d > %d",
578 pfx_buf
, new_buf
, exist_buf
, new_pref
,
583 if (new_pref
< exist_pref
) {
586 "%s: %s loses to %s due to localpref %d < %d",
587 pfx_buf
, new_buf
, exist_buf
, new_pref
,
592 /* 3. Local route check. We prefer:
594 * - BGP_ROUTE_AGGREGATE
595 * - BGP_ROUTE_REDISTRIBUTE
597 if (!(new->sub_type
== BGP_ROUTE_NORMAL
||
598 new->sub_type
== BGP_ROUTE_IMPORTED
)) {
601 "%s: %s wins over %s due to preferred BGP_ROUTE type",
602 pfx_buf
, new_buf
, exist_buf
);
606 if (!(exist
->sub_type
== BGP_ROUTE_NORMAL
||
607 exist
->sub_type
== BGP_ROUTE_IMPORTED
)) {
610 "%s: %s loses to %s due to preferred BGP_ROUTE type",
611 pfx_buf
, new_buf
, exist_buf
);
615 /* 4. AS path length check. */
616 if (!bgp_flag_check(bgp
, BGP_FLAG_ASPATH_IGNORE
)) {
617 int exist_hops
= aspath_count_hops(existattr
->aspath
);
618 int exist_confeds
= aspath_count_confeds(existattr
->aspath
);
620 if (bgp_flag_check(bgp
, BGP_FLAG_ASPATH_CONFED
)) {
623 aspath_hops
= aspath_count_hops(newattr
->aspath
);
624 aspath_hops
+= aspath_count_confeds(newattr
->aspath
);
626 if (aspath_hops
< (exist_hops
+ exist_confeds
)) {
629 "%s: %s wins over %s due to aspath (with confeds) hopcount %d < %d",
630 pfx_buf
, new_buf
, exist_buf
,
632 (exist_hops
+ exist_confeds
));
636 if (aspath_hops
> (exist_hops
+ exist_confeds
)) {
639 "%s: %s loses to %s due to aspath (with confeds) hopcount %d > %d",
640 pfx_buf
, new_buf
, exist_buf
,
642 (exist_hops
+ exist_confeds
));
646 int newhops
= aspath_count_hops(newattr
->aspath
);
648 if (newhops
< exist_hops
) {
651 "%s: %s wins over %s due to aspath hopcount %d < %d",
652 pfx_buf
, new_buf
, exist_buf
,
653 newhops
, exist_hops
);
657 if (newhops
> exist_hops
) {
660 "%s: %s loses to %s due to aspath hopcount %d > %d",
661 pfx_buf
, new_buf
, exist_buf
,
662 newhops
, exist_hops
);
668 /* 5. Origin check. */
669 if (newattr
->origin
< existattr
->origin
) {
671 zlog_debug("%s: %s wins over %s due to ORIGIN %s < %s",
672 pfx_buf
, new_buf
, exist_buf
,
673 bgp_origin_long_str
[newattr
->origin
],
674 bgp_origin_long_str
[existattr
->origin
]);
678 if (newattr
->origin
> existattr
->origin
) {
680 zlog_debug("%s: %s loses to %s due to ORIGIN %s > %s",
681 pfx_buf
, new_buf
, exist_buf
,
682 bgp_origin_long_str
[newattr
->origin
],
683 bgp_origin_long_str
[existattr
->origin
]);
688 internal_as_route
= (aspath_count_hops(newattr
->aspath
) == 0
689 && aspath_count_hops(existattr
->aspath
) == 0);
690 confed_as_route
= (aspath_count_confeds(newattr
->aspath
) > 0
691 && aspath_count_confeds(existattr
->aspath
) > 0
692 && aspath_count_hops(newattr
->aspath
) == 0
693 && aspath_count_hops(existattr
->aspath
) == 0);
695 if (bgp_flag_check(bgp
, BGP_FLAG_ALWAYS_COMPARE_MED
)
696 || (bgp_flag_check(bgp
, BGP_FLAG_MED_CONFED
) && confed_as_route
)
697 || aspath_cmp_left(newattr
->aspath
, existattr
->aspath
)
698 || aspath_cmp_left_confed(newattr
->aspath
, existattr
->aspath
)
699 || internal_as_route
) {
700 new_med
= bgp_med_value(new->attr
, bgp
);
701 exist_med
= bgp_med_value(exist
->attr
, bgp
);
703 if (new_med
< exist_med
) {
706 "%s: %s wins over %s due to MED %d < %d",
707 pfx_buf
, new_buf
, exist_buf
, new_med
,
712 if (new_med
> exist_med
) {
715 "%s: %s loses to %s due to MED %d > %d",
716 pfx_buf
, new_buf
, exist_buf
, new_med
,
722 /* 7. Peer type check. */
723 new_sort
= new->peer
->sort
;
724 exist_sort
= exist
->peer
->sort
;
726 if (new_sort
== BGP_PEER_EBGP
727 && (exist_sort
== BGP_PEER_IBGP
|| exist_sort
== BGP_PEER_CONFED
)) {
730 "%s: %s wins over %s due to eBGP peer > iBGP peer",
731 pfx_buf
, new_buf
, exist_buf
);
735 if (exist_sort
== BGP_PEER_EBGP
736 && (new_sort
== BGP_PEER_IBGP
|| new_sort
== BGP_PEER_CONFED
)) {
739 "%s: %s loses to %s due to iBGP peer < eBGP peer",
740 pfx_buf
, new_buf
, exist_buf
);
744 /* 8. IGP metric check. */
748 newm
= new->extra
->igpmetric
;
750 existm
= exist
->extra
->igpmetric
;
755 "%s: %s wins over %s due to IGP metric %d < %d",
756 pfx_buf
, new_buf
, exist_buf
, newm
, existm
);
763 "%s: %s loses to %s due to IGP metric %d > %d",
764 pfx_buf
, new_buf
, exist_buf
, newm
, existm
);
768 /* 9. Same IGP metric. Compare the cluster list length as
769 representative of IGP hops metric. Rewrite the metric value
770 pair (newm, existm) with the cluster list length. Prefer the
771 path with smaller cluster list length. */
772 if (newm
== existm
) {
773 if (peer_sort(new->peer
) == BGP_PEER_IBGP
774 && peer_sort(exist
->peer
) == BGP_PEER_IBGP
775 && (mpath_cfg
== NULL
777 mpath_cfg
->ibgp_flags
,
778 BGP_FLAG_IBGP_MULTIPATH_SAME_CLUSTERLEN
))) {
779 newm
= BGP_CLUSTER_LIST_LENGTH(new->attr
);
780 existm
= BGP_CLUSTER_LIST_LENGTH(exist
->attr
);
785 "%s: %s wins over %s due to CLUSTER_LIST length %d < %d",
786 pfx_buf
, new_buf
, exist_buf
,
794 "%s: %s loses to %s due to CLUSTER_LIST length %d > %d",
795 pfx_buf
, new_buf
, exist_buf
,
802 /* 10. confed-external vs. confed-internal */
803 if (CHECK_FLAG(bgp
->config
, BGP_CONFIG_CONFEDERATION
)) {
804 if (new_sort
== BGP_PEER_CONFED
805 && exist_sort
== BGP_PEER_IBGP
) {
808 "%s: %s wins over %s due to confed-external peer > confed-internal peer",
809 pfx_buf
, new_buf
, exist_buf
);
813 if (exist_sort
== BGP_PEER_CONFED
814 && new_sort
== BGP_PEER_IBGP
) {
817 "%s: %s loses to %s due to confed-internal peer < confed-external peer",
818 pfx_buf
, new_buf
, exist_buf
);
823 /* 11. Maximum path check. */
824 if (newm
== existm
) {
825 /* If one path has a label but the other does not, do not treat
826 * them as equals for multipath
828 if ((new->extra
&&bgp_is_valid_label(&new->extra
->label
[0]))
830 && bgp_is_valid_label(&exist
->extra
->label
[0]))) {
833 "%s: %s and %s cannot be multipath, one has a label while the other does not",
834 pfx_buf
, new_buf
, exist_buf
);
835 } else if (bgp_flag_check(bgp
,
836 BGP_FLAG_ASPATH_MULTIPATH_RELAX
)) {
839 * For the two paths, all comparison steps till IGP
841 * have succeeded - including AS_PATH hop count. Since
843 * bestpath as-path multipath-relax' knob is on, we
845 * an exact match of AS_PATH. Thus, mark the paths are
847 * That will trigger both these paths to get into the
855 "%s: %s and %s are equal via multipath-relax",
856 pfx_buf
, new_buf
, exist_buf
);
857 } else if (new->peer
->sort
== BGP_PEER_IBGP
) {
858 if (aspath_cmp(new->attr
->aspath
,
859 exist
->attr
->aspath
)) {
864 "%s: %s and %s are equal via matching aspaths",
865 pfx_buf
, new_buf
, exist_buf
);
867 } else if (new->peer
->as
== exist
->peer
->as
) {
872 "%s: %s and %s are equal via same remote-as",
873 pfx_buf
, new_buf
, exist_buf
);
877 * TODO: If unequal cost ibgp multipath is enabled we can
878 * mark the paths as equal here instead of returning
883 "%s: %s wins over %s after IGP metric comparison",
884 pfx_buf
, new_buf
, exist_buf
);
887 "%s: %s loses to %s after IGP metric comparison",
888 pfx_buf
, new_buf
, exist_buf
);
893 /* 12. If both paths are external, prefer the path that was received
894 first (the oldest one). This step minimizes route-flap, since a
895 newer path won't displace an older one, even if it was the
896 preferred route based on the additional decision criteria below. */
897 if (!bgp_flag_check(bgp
, BGP_FLAG_COMPARE_ROUTER_ID
)
898 && new_sort
== BGP_PEER_EBGP
&& exist_sort
== BGP_PEER_EBGP
) {
899 if (CHECK_FLAG(new->flags
, BGP_INFO_SELECTED
)) {
902 "%s: %s wins over %s due to oldest external",
903 pfx_buf
, new_buf
, exist_buf
);
907 if (CHECK_FLAG(exist
->flags
, BGP_INFO_SELECTED
)) {
910 "%s: %s loses to %s due to oldest external",
911 pfx_buf
, new_buf
, exist_buf
);
916 /* 13. Router-ID comparision. */
917 /* If one of the paths is "stale", the corresponding peer router-id will
918 * be 0 and would always win over the other path. If originator id is
919 * used for the comparision, it will decide which path is better.
921 if (newattr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID
))
922 new_id
.s_addr
= newattr
->originator_id
.s_addr
;
924 new_id
.s_addr
= new->peer
->remote_id
.s_addr
;
925 if (existattr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID
))
926 exist_id
.s_addr
= existattr
->originator_id
.s_addr
;
928 exist_id
.s_addr
= exist
->peer
->remote_id
.s_addr
;
930 if (ntohl(new_id
.s_addr
) < ntohl(exist_id
.s_addr
)) {
933 "%s: %s wins over %s due to Router-ID comparison",
934 pfx_buf
, new_buf
, exist_buf
);
938 if (ntohl(new_id
.s_addr
) > ntohl(exist_id
.s_addr
)) {
941 "%s: %s loses to %s due to Router-ID comparison",
942 pfx_buf
, new_buf
, exist_buf
);
946 /* 14. Cluster length comparision. */
947 new_cluster
= BGP_CLUSTER_LIST_LENGTH(new->attr
);
948 exist_cluster
= BGP_CLUSTER_LIST_LENGTH(exist
->attr
);
950 if (new_cluster
< exist_cluster
) {
953 "%s: %s wins over %s due to CLUSTER_LIST length %d < %d",
954 pfx_buf
, new_buf
, exist_buf
, new_cluster
,
959 if (new_cluster
> exist_cluster
) {
962 "%s: %s loses to %s due to CLUSTER_LIST length %d > %d",
963 pfx_buf
, new_buf
, exist_buf
, new_cluster
,
968 /* 15. Neighbor address comparision. */
969 /* Do this only if neither path is "stale" as stale paths do not have
970 * valid peer information (as the connection may or may not be up).
972 if (CHECK_FLAG(exist
->flags
, BGP_INFO_STALE
)) {
975 "%s: %s wins over %s due to latter path being STALE",
976 pfx_buf
, new_buf
, exist_buf
);
980 if (CHECK_FLAG(new->flags
, BGP_INFO_STALE
)) {
983 "%s: %s loses to %s due to former path being STALE",
984 pfx_buf
, new_buf
, exist_buf
);
988 /* locally configured routes to advertise do not have su_remote */
989 if (new->peer
->su_remote
== NULL
)
991 if (exist
->peer
->su_remote
== NULL
)
994 ret
= sockunion_cmp(new->peer
->su_remote
, exist
->peer
->su_remote
);
999 "%s: %s loses to %s due to Neighor IP comparison",
1000 pfx_buf
, new_buf
, exist_buf
);
1007 "%s: %s wins over %s due to Neighor IP comparison",
1008 pfx_buf
, new_buf
, exist_buf
);
1013 zlog_debug("%s: %s wins over %s due to nothing left to compare",
1014 pfx_buf
, new_buf
, exist_buf
);
1019 /* Compare two bgp route entity. Return -1 if new is preferred, 1 if exist
1020 * is preferred, or 0 if they are the same (usually will only occur if
1021 * multipath is enabled
1022 * This version is compatible with */
1023 int bgp_info_cmp_compatible(struct bgp
*bgp
, struct bgp_info
*new,
1024 struct bgp_info
*exist
, char *pfx_buf
, afi_t afi
,
1029 ret
= bgp_info_cmp(bgp
, new, exist
, &paths_eq
, NULL
, 0, pfx_buf
, afi
,
1043 static enum filter_type
bgp_input_filter(struct peer
*peer
, struct prefix
*p
,
1044 struct attr
*attr
, afi_t afi
,
1047 struct bgp_filter
*filter
;
1049 filter
= &peer
->filter
[afi
][safi
];
1051 #define FILTER_EXIST_WARN(F, f, filter) \
1052 if (BGP_DEBUG(update, UPDATE_IN) && !(F##_IN(filter))) \
1053 zlog_debug("%s: Could not find configured input %s-list %s!", \
1054 peer->host, #f, F##_IN_NAME(filter));
1056 if (DISTRIBUTE_IN_NAME(filter
)) {
1057 FILTER_EXIST_WARN(DISTRIBUTE
, distribute
, filter
);
1059 if (access_list_apply(DISTRIBUTE_IN(filter
), p
) == FILTER_DENY
)
1063 if (PREFIX_LIST_IN_NAME(filter
)) {
1064 FILTER_EXIST_WARN(PREFIX_LIST
, prefix
, filter
);
1066 if (prefix_list_apply(PREFIX_LIST_IN(filter
), p
) == PREFIX_DENY
)
1070 if (FILTER_LIST_IN_NAME(filter
)) {
1071 FILTER_EXIST_WARN(FILTER_LIST
, as
, filter
);
1073 if (as_list_apply(FILTER_LIST_IN(filter
), attr
->aspath
)
1078 return FILTER_PERMIT
;
1079 #undef FILTER_EXIST_WARN
1082 static enum filter_type
bgp_output_filter(struct peer
*peer
, struct prefix
*p
,
1083 struct attr
*attr
, afi_t afi
,
1086 struct bgp_filter
*filter
;
1088 filter
= &peer
->filter
[afi
][safi
];
1090 #define FILTER_EXIST_WARN(F, f, filter) \
1091 if (BGP_DEBUG(update, UPDATE_OUT) && !(F##_OUT(filter))) \
1092 zlog_debug("%s: Could not find configured output %s-list %s!", \
1093 peer->host, #f, F##_OUT_NAME(filter));
1095 if (DISTRIBUTE_OUT_NAME(filter
)) {
1096 FILTER_EXIST_WARN(DISTRIBUTE
, distribute
, filter
);
1098 if (access_list_apply(DISTRIBUTE_OUT(filter
), p
) == FILTER_DENY
)
1102 if (PREFIX_LIST_OUT_NAME(filter
)) {
1103 FILTER_EXIST_WARN(PREFIX_LIST
, prefix
, filter
);
1105 if (prefix_list_apply(PREFIX_LIST_OUT(filter
), p
)
1110 if (FILTER_LIST_OUT_NAME(filter
)) {
1111 FILTER_EXIST_WARN(FILTER_LIST
, as
, filter
);
1113 if (as_list_apply(FILTER_LIST_OUT(filter
), attr
->aspath
)
1118 return FILTER_PERMIT
;
1119 #undef FILTER_EXIST_WARN
1122 /* If community attribute includes no_export then return 1. */
1123 static int bgp_community_filter(struct peer
*peer
, struct attr
*attr
)
1125 if (attr
->community
) {
1126 /* NO_ADVERTISE check. */
1127 if (community_include(attr
->community
, COMMUNITY_NO_ADVERTISE
))
1130 /* NO_EXPORT check. */
1131 if (peer
->sort
== BGP_PEER_EBGP
1132 && community_include(attr
->community
, COMMUNITY_NO_EXPORT
))
1135 /* NO_EXPORT_SUBCONFED check. */
1136 if (peer
->sort
== BGP_PEER_EBGP
1137 || peer
->sort
== BGP_PEER_CONFED
)
1138 if (community_include(attr
->community
,
1139 COMMUNITY_NO_EXPORT_SUBCONFED
))
1145 /* Route reflection loop check. */
1146 static int bgp_cluster_filter(struct peer
*peer
, struct attr
*attr
)
1148 struct in_addr cluster_id
;
1150 if (attr
->cluster
) {
1151 if (peer
->bgp
->config
& BGP_CONFIG_CLUSTER_ID
)
1152 cluster_id
= peer
->bgp
->cluster_id
;
1154 cluster_id
= peer
->bgp
->router_id
;
1156 if (cluster_loop_check(attr
->cluster
, cluster_id
))
1162 static int bgp_input_modifier(struct peer
*peer
, struct prefix
*p
,
1163 struct attr
*attr
, afi_t afi
, safi_t safi
,
1164 const char *rmap_name
)
1166 struct bgp_filter
*filter
;
1167 struct bgp_info info
;
1168 route_map_result_t ret
;
1169 struct route_map
*rmap
= NULL
;
1171 filter
= &peer
->filter
[afi
][safi
];
1173 /* Apply default weight value. */
1174 if (peer
->weight
[afi
][safi
])
1175 attr
->weight
= peer
->weight
[afi
][safi
];
1178 rmap
= route_map_lookup_by_name(rmap_name
);
1183 if (ROUTE_MAP_IN_NAME(filter
)) {
1184 rmap
= ROUTE_MAP_IN(filter
);
1191 /* Route map apply. */
1193 memset(&info
, 0, sizeof(struct bgp_info
));
1194 /* Duplicate current value to new strucutre for modification. */
1198 SET_FLAG(peer
->rmap_type
, PEER_RMAP_TYPE_IN
);
1200 /* Apply BGP route map to the attribute. */
1201 ret
= route_map_apply(rmap
, p
, RMAP_BGP
, &info
);
1203 peer
->rmap_type
= 0;
1205 if (ret
== RMAP_DENYMATCH
)
1211 static int bgp_output_modifier(struct peer
*peer
, struct prefix
*p
,
1212 struct attr
*attr
, afi_t afi
, safi_t safi
,
1213 const char *rmap_name
)
1215 struct bgp_info info
;
1216 route_map_result_t ret
;
1217 struct route_map
*rmap
= NULL
;
1221 * So if we get to this point and have no rmap_name
1222 * we want to just show the output as it currently
1228 /* Apply default weight value. */
1229 if (peer
->weight
[afi
][safi
])
1230 attr
->weight
= peer
->weight
[afi
][safi
];
1232 rmap
= route_map_lookup_by_name(rmap_name
);
1235 * If we have a route map name and we do not find
1236 * the routemap that means we have an implicit
1242 memset(&info
, 0, sizeof(struct bgp_info
));
1243 /* Route map apply. */
1244 /* Duplicate current value to new strucutre for modification. */
1248 rmap_type
= peer
->rmap_type
;
1249 SET_FLAG(peer
->rmap_type
, PEER_RMAP_TYPE_OUT
);
1251 /* Apply BGP route map to the attribute. */
1252 ret
= route_map_apply(rmap
, p
, RMAP_BGP
, &info
);
1254 peer
->rmap_type
= rmap_type
;
1256 if (ret
== RMAP_DENYMATCH
)
1258 * caller has multiple error paths with bgp_attr_flush()
1265 /* If this is an EBGP peer with remove-private-AS */
1266 static void bgp_peer_remove_private_as(struct bgp
*bgp
, afi_t afi
, safi_t safi
,
1267 struct peer
*peer
, struct attr
*attr
)
1269 if (peer
->sort
== BGP_PEER_EBGP
1270 && (peer_af_flag_check(peer
, afi
, safi
,
1271 PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE
)
1272 || peer_af_flag_check(peer
, afi
, safi
,
1273 PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE
)
1274 || peer_af_flag_check(peer
, afi
, safi
,
1275 PEER_FLAG_REMOVE_PRIVATE_AS_ALL
)
1276 || peer_af_flag_check(peer
, afi
, safi
,
1277 PEER_FLAG_REMOVE_PRIVATE_AS
))) {
1278 // Take action on the entire aspath
1279 if (peer_af_flag_check(peer
, afi
, safi
,
1280 PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE
)
1281 || peer_af_flag_check(peer
, afi
, safi
,
1282 PEER_FLAG_REMOVE_PRIVATE_AS_ALL
)) {
1283 if (peer_af_flag_check(
1285 PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE
))
1286 attr
->aspath
= aspath_replace_private_asns(
1287 attr
->aspath
, bgp
->as
);
1289 // The entire aspath consists of private ASNs so create
1291 else if (aspath_private_as_check(attr
->aspath
))
1292 attr
->aspath
= aspath_empty_get();
1294 // There are some public and some private ASNs, remove
1297 attr
->aspath
= aspath_remove_private_asns(
1301 // 'all' was not specified so the entire aspath must be private
1303 // for us to do anything
1304 else if (aspath_private_as_check(attr
->aspath
)) {
1305 if (peer_af_flag_check(
1307 PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE
))
1308 attr
->aspath
= aspath_replace_private_asns(
1309 attr
->aspath
, bgp
->as
);
1311 attr
->aspath
= aspath_empty_get();
1316 /* If this is an EBGP peer with as-override */
1317 static void bgp_peer_as_override(struct bgp
*bgp
, afi_t afi
, safi_t safi
,
1318 struct peer
*peer
, struct attr
*attr
)
1320 if (peer
->sort
== BGP_PEER_EBGP
1321 && peer_af_flag_check(peer
, afi
, safi
, PEER_FLAG_AS_OVERRIDE
)) {
1322 if (aspath_single_asn_check(attr
->aspath
, peer
->as
))
1323 attr
->aspath
= aspath_replace_specific_asn(
1324 attr
->aspath
, peer
->as
, bgp
->as
);
1328 void bgp_attr_add_gshut_community(struct attr
*attr
)
1330 struct community
*old
;
1331 struct community
*new;
1332 struct community
*merge
;
1333 struct community
*gshut
;
1335 old
= attr
->community
;
1336 gshut
= community_str2com("graceful-shutdown");
1341 merge
= community_merge(community_dup(old
), gshut
);
1343 if (old
->refcnt
== 0)
1344 community_free(old
);
1346 new = community_uniq_sort(merge
);
1347 community_free(merge
);
1349 new = community_dup(gshut
);
1352 community_free(gshut
);
1353 attr
->community
= new;
1354 attr
->flag
|= ATTR_FLAG_BIT(BGP_ATTR_COMMUNITIES
);
1356 /* When we add the graceful-shutdown community we must also
1357 * lower the local-preference */
1358 attr
->flag
|= ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
);
1359 attr
->local_pref
= BGP_GSHUT_LOCAL_PREF
;
1363 static void subgroup_announce_reset_nhop(uint8_t family
, struct attr
*attr
)
1365 if (family
== AF_INET
) {
1366 attr
->nexthop
.s_addr
= 0;
1367 attr
->mp_nexthop_global_in
.s_addr
= 0;
1369 if (family
== AF_INET6
)
1370 memset(&attr
->mp_nexthop_global
, 0, IPV6_MAX_BYTELEN
);
1371 if (family
== AF_EVPN
)
1372 memset(&attr
->mp_nexthop_global_in
, 0, BGP_ATTR_NHLEN_IPV4
);
1375 int subgroup_announce_check(struct bgp_node
*rn
, struct bgp_info
*ri
,
1376 struct update_subgroup
*subgrp
, struct prefix
*p
,
1379 struct bgp_filter
*filter
;
1382 struct peer
*onlypeer
;
1384 struct attr
*riattr
;
1385 char buf
[PREFIX_STRLEN
];
1391 int samepeer_safe
= 0; /* for synthetic mplsvpns routes */
1393 if (DISABLE_BGP_ANNOUNCE
)
1396 afi
= SUBGRP_AFI(subgrp
);
1397 safi
= SUBGRP_SAFI(subgrp
);
1398 peer
= SUBGRP_PEER(subgrp
);
1400 if (CHECK_FLAG(peer
->flags
, PEER_FLAG_LONESOUL
))
1401 onlypeer
= SUBGRP_PFIRST(subgrp
)->peer
;
1404 filter
= &peer
->filter
[afi
][safi
];
1405 bgp
= SUBGRP_INST(subgrp
);
1406 riattr
= bgp_info_mpath_count(ri
) ? bgp_info_mpath_attr(ri
) : ri
->attr
;
1409 if (((afi
== AFI_IP
) || (afi
== AFI_IP6
)) && (safi
== SAFI_MPLS_VPN
)
1410 && ((ri
->type
== ZEBRA_ROUTE_BGP_DIRECT
)
1411 || (ri
->type
== ZEBRA_ROUTE_BGP_DIRECT_EXT
))) {
1414 * direct and direct_ext type routes originate internally even
1415 * though they can have peer pointers that reference other
1418 prefix2str(p
, buf
, PREFIX_STRLEN
);
1419 zlog_debug("%s: pfx %s bgp_direct->vpn route peer safe",
1425 if (((afi
== AFI_IP
) || (afi
== AFI_IP6
))
1426 && ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_UNICAST
))
1427 && (ri
->type
== ZEBRA_ROUTE_BGP
)
1428 && (ri
->sub_type
== BGP_ROUTE_IMPORTED
)) {
1430 /* Applies to routes leaked vpn->vrf and vrf->vpn */
1435 /* With addpath we may be asked to TX all kinds of paths so make sure
1437 if (!CHECK_FLAG(ri
->flags
, BGP_INFO_VALID
)
1438 || CHECK_FLAG(ri
->flags
, BGP_INFO_HISTORY
)
1439 || CHECK_FLAG(ri
->flags
, BGP_INFO_REMOVED
)) {
1443 /* If this is not the bestpath then check to see if there is an enabled
1445 * feature that requires us to advertise it */
1446 if (!CHECK_FLAG(ri
->flags
, BGP_INFO_SELECTED
)) {
1447 if (!bgp_addpath_tx_path(peer
, afi
, safi
, ri
)) {
1452 /* Aggregate-address suppress check. */
1453 if (ri
->extra
&& ri
->extra
->suppress
)
1454 if (!UNSUPPRESS_MAP_NAME(filter
)) {
1459 * If we are doing VRF 2 VRF leaking via the import
1460 * statement, we want to prevent the route going
1461 * off box as that the RT and RD created are localy
1462 * significant and globaly useless.
1464 if (safi
== SAFI_MPLS_VPN
&& ri
->extra
&& ri
->extra
->num_labels
1465 && ri
->extra
->label
[0] == BGP_PREVENT_VRF_2_VRF_LEAK
)
1468 /* If it's labeled safi, make sure the route has a valid label. */
1469 if (safi
== SAFI_LABELED_UNICAST
) {
1470 mpls_label_t label
= bgp_adv_label(rn
, ri
, peer
, afi
, safi
);
1471 if (!bgp_is_valid_label(&label
)) {
1472 if (bgp_debug_update(NULL
, p
, subgrp
->update_group
, 0))
1473 zlog_debug("u%" PRIu64
":s%" PRIu64
1474 " %s/%d is filtered - no label (%p)",
1475 subgrp
->update_group
->id
, subgrp
->id
,
1476 inet_ntop(p
->family
, &p
->u
.prefix
,
1477 buf
, SU_ADDRSTRLEN
),
1478 p
->prefixlen
, &label
);
1483 /* Do not send back route to sender. */
1484 if (onlypeer
&& from
== onlypeer
) {
1488 /* Do not send the default route in the BGP table if the neighbor is
1489 * configured for default-originate */
1490 if (CHECK_FLAG(peer
->af_flags
[afi
][safi
],
1491 PEER_FLAG_DEFAULT_ORIGINATE
)) {
1492 if (p
->family
== AF_INET
&& p
->u
.prefix4
.s_addr
== INADDR_ANY
)
1494 else if (p
->family
== AF_INET6
&& p
->prefixlen
== 0)
1498 /* Transparency check. */
1499 if (CHECK_FLAG(peer
->af_flags
[afi
][safi
], PEER_FLAG_RSERVER_CLIENT
)
1500 && CHECK_FLAG(from
->af_flags
[afi
][safi
], PEER_FLAG_RSERVER_CLIENT
))
1505 /* If community is not disabled check the no-export and local. */
1506 if (!transparent
&& bgp_community_filter(peer
, riattr
)) {
1507 if (bgp_debug_update(NULL
, p
, subgrp
->update_group
, 0))
1509 "subgrpannouncecheck: community filter check fail");
1513 /* If the attribute has originator-id and it is same as remote
1515 if (onlypeer
&& riattr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID
)
1516 && (IPV4_ADDR_SAME(&onlypeer
->remote_id
, &riattr
->originator_id
))) {
1517 if (bgp_debug_update(NULL
, p
, subgrp
->update_group
, 0))
1519 "%s [Update:SEND] %s originator-id is same as "
1522 prefix2str(p
, buf
, sizeof(buf
)));
1526 /* ORF prefix-list filter check */
1527 if (CHECK_FLAG(peer
->af_cap
[afi
][safi
], PEER_CAP_ORF_PREFIX_RM_ADV
)
1528 && (CHECK_FLAG(peer
->af_cap
[afi
][safi
], PEER_CAP_ORF_PREFIX_SM_RCV
)
1529 || CHECK_FLAG(peer
->af_cap
[afi
][safi
],
1530 PEER_CAP_ORF_PREFIX_SM_OLD_RCV
)))
1531 if (peer
->orf_plist
[afi
][safi
]) {
1532 if (prefix_list_apply(peer
->orf_plist
[afi
][safi
], p
)
1534 if (bgp_debug_update(NULL
, p
,
1535 subgrp
->update_group
, 0))
1537 "%s [Update:SEND] %s is filtered via ORF",
1545 /* Output filter check. */
1546 if (bgp_output_filter(peer
, p
, riattr
, afi
, safi
) == FILTER_DENY
) {
1547 if (bgp_debug_update(NULL
, p
, subgrp
->update_group
, 0))
1548 zlog_debug("%s [Update:SEND] %s is filtered",
1549 peer
->host
, prefix2str(p
, buf
, sizeof(buf
)));
1553 #ifdef BGP_SEND_ASPATH_CHECK
1554 /* AS path loop check. */
1555 if (onlypeer
&& aspath_loop_check(riattr
->aspath
, onlypeer
->as
)) {
1556 if (bgp_debug_update(NULL
, p
, subgrp
->update_group
, 0))
1558 "%s [Update:SEND] suppress announcement to peer AS %u "
1559 "that is part of AS path.",
1560 onlypeer
->host
, onlypeer
->as
);
1563 #endif /* BGP_SEND_ASPATH_CHECK */
1565 /* If we're a CONFED we need to loop check the CONFED ID too */
1566 if (CHECK_FLAG(bgp
->config
, BGP_CONFIG_CONFEDERATION
)) {
1567 if (aspath_loop_check(riattr
->aspath
, bgp
->confed_id
)) {
1568 if (bgp_debug_update(NULL
, p
, subgrp
->update_group
, 0))
1570 "%s [Update:SEND] suppress announcement to peer AS %u"
1572 peer
->host
, bgp
->confed_id
);
1577 /* Route-Reflect check. */
1578 if (from
->sort
== BGP_PEER_IBGP
&& peer
->sort
== BGP_PEER_IBGP
)
1583 /* IBGP reflection check. */
1584 if (reflect
&& !samepeer_safe
) {
1585 /* A route from a Client peer. */
1586 if (CHECK_FLAG(from
->af_flags
[afi
][safi
],
1587 PEER_FLAG_REFLECTOR_CLIENT
)) {
1588 /* Reflect to all the Non-Client peers and also to the
1589 Client peers other than the originator. Originator
1591 is already done. So there is noting to do. */
1592 /* no bgp client-to-client reflection check. */
1593 if (bgp_flag_check(bgp
, BGP_FLAG_NO_CLIENT_TO_CLIENT
))
1594 if (CHECK_FLAG(peer
->af_flags
[afi
][safi
],
1595 PEER_FLAG_REFLECTOR_CLIENT
))
1598 /* A route from a Non-client peer. Reflect to all other
1600 if (!CHECK_FLAG(peer
->af_flags
[afi
][safi
],
1601 PEER_FLAG_REFLECTOR_CLIENT
))
1606 /* For modify attribute, copy it to temporary structure. */
1607 bgp_attr_dup(attr
, riattr
);
1609 /* If local-preference is not set. */
1610 if ((peer
->sort
== BGP_PEER_IBGP
|| peer
->sort
== BGP_PEER_CONFED
)
1611 && (!(attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
)))) {
1612 attr
->flag
|= ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
);
1613 attr
->local_pref
= bgp
->default_local_pref
;
1616 /* If originator-id is not set and the route is to be reflected,
1617 set the originator id */
1619 && (!(attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID
)))) {
1620 IPV4_ADDR_COPY(&(attr
->originator_id
), &(from
->remote_id
));
1621 SET_FLAG(attr
->flag
, BGP_ATTR_ORIGINATOR_ID
);
1624 /* Remove MED if its an EBGP peer - will get overwritten by route-maps
1626 if (peer
->sort
== BGP_PEER_EBGP
1627 && attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
)) {
1628 if (from
!= bgp
->peer_self
&& !transparent
1629 && !CHECK_FLAG(peer
->af_flags
[afi
][safi
],
1630 PEER_FLAG_MED_UNCHANGED
))
1632 ~(ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
));
1635 /* Since the nexthop attribute can vary per peer, it is not explicitly
1637 * in announce check, only certain flags and length (or number of
1639 * -- for IPv6/MP_REACH) are set here in order to guide the update
1641 * code in setting the nexthop(s) on a per peer basis in
1643 * Typically, the source nexthop in the attribute is preserved but in
1645 * scenarios where we know it will always be overwritten, we reset the
1646 * nexthop to "0" in an attempt to achieve better Update packing. An
1647 * example of this is when a prefix from each of 2 IBGP peers needs to
1649 * announced to an EBGP peer (and they have the same attributes barring
1653 SET_FLAG(attr
->rmap_change_flags
, BATTR_REFLECTED
);
1655 #define NEXTHOP_IS_V6 \
1656 ((safi != SAFI_ENCAP && safi != SAFI_MPLS_VPN \
1657 && (p->family == AF_INET6 || peer_cap_enhe(peer, afi, safi))) \
1658 || ((safi == SAFI_ENCAP || safi == SAFI_MPLS_VPN) \
1659 && attr->mp_nexthop_len >= IPV6_MAX_BYTELEN))
1661 /* IPv6/MP starts with 1 nexthop. The link-local address is passed only
1663 * the peer (group) is configured to receive link-local nexthop
1665 * and it is available in the prefix OR we're not reflecting the route
1667 * the peer (group) to whom we're going to announce is on a shared
1669 * and this is either a self-originated route or the peer is EBGP.
1671 if (NEXTHOP_IS_V6
) {
1672 attr
->mp_nexthop_len
= BGP_ATTR_NHLEN_IPV6_GLOBAL
;
1673 if ((CHECK_FLAG(peer
->af_flags
[afi
][safi
],
1674 PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED
)
1675 && IN6_IS_ADDR_LINKLOCAL(&attr
->mp_nexthop_local
))
1676 || (!reflect
&& peer
->shared_network
1677 && (from
== bgp
->peer_self
1678 || peer
->sort
== BGP_PEER_EBGP
))) {
1679 attr
->mp_nexthop_len
=
1680 BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL
;
1683 /* Clear off link-local nexthop in source, whenever it is not
1685 * ensure more prefixes share the same attribute for
1688 if (!(CHECK_FLAG(peer
->af_flags
[afi
][safi
],
1689 PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED
)))
1690 memset(&attr
->mp_nexthop_local
, 0, IPV6_MAX_BYTELEN
);
1693 bgp_peer_remove_private_as(bgp
, afi
, safi
, peer
, attr
);
1694 bgp_peer_as_override(bgp
, afi
, safi
, peer
, attr
);
1696 /* Route map & unsuppress-map apply. */
1697 if (ROUTE_MAP_OUT_NAME(filter
) || (ri
->extra
&& ri
->extra
->suppress
)) {
1698 struct bgp_info info
;
1699 struct bgp_info_extra dummy_info_extra
;
1700 struct attr dummy_attr
;
1702 memset(&info
, 0, sizeof(struct bgp_info
));
1707 memcpy(&dummy_info_extra
, ri
->extra
,
1708 sizeof(struct bgp_info_extra
));
1709 info
.extra
= &dummy_info_extra
;
1712 /* don't confuse inbound and outbound setting */
1713 RESET_FLAG(attr
->rmap_change_flags
);
1716 * The route reflector is not allowed to modify the attributes
1717 * of the reflected IBGP routes unless explicitly allowed.
1719 if ((from
->sort
== BGP_PEER_IBGP
&& peer
->sort
== BGP_PEER_IBGP
)
1720 && !bgp_flag_check(bgp
,
1721 BGP_FLAG_RR_ALLOW_OUTBOUND_POLICY
)) {
1722 bgp_attr_dup(&dummy_attr
, attr
);
1723 info
.attr
= &dummy_attr
;
1726 SET_FLAG(peer
->rmap_type
, PEER_RMAP_TYPE_OUT
);
1728 if (ri
->extra
&& ri
->extra
->suppress
)
1729 ret
= route_map_apply(UNSUPPRESS_MAP(filter
), p
,
1732 ret
= route_map_apply(ROUTE_MAP_OUT(filter
), p
,
1735 peer
->rmap_type
= 0;
1737 if (ret
== RMAP_DENYMATCH
) {
1738 bgp_attr_flush(attr
);
1743 if (bgp_flag_check(bgp
, BGP_FLAG_GRACEFUL_SHUTDOWN
)) {
1744 if (peer
->sort
== BGP_PEER_IBGP
1745 || peer
->sort
== BGP_PEER_CONFED
) {
1746 attr
->flag
|= ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
);
1747 attr
->local_pref
= BGP_GSHUT_LOCAL_PREF
;
1749 bgp_attr_add_gshut_community(attr
);
1753 /* After route-map has been applied, we check to see if the nexthop to
1754 * be carried in the attribute (that is used for the announcement) can
1755 * be cleared off or not. We do this in all cases where we would be
1756 * setting the nexthop to "ourselves". For IPv6, we only need to
1758 * the global nexthop here; the link-local nexthop would have been
1760 * already, and if not, it is required by the update formation code.
1761 * Also see earlier comments in this function.
1764 * If route-map has performed some operation on the nexthop or the peer
1765 * configuration says to pass it unchanged, we cannot reset the nexthop
1766 * here, so only attempt to do it if these aren't true. Note that the
1767 * route-map handler itself might have cleared the nexthop, if for
1769 * it is configured as 'peer-address'.
1771 if (!bgp_rmap_nhop_changed(attr
->rmap_change_flags
,
1772 riattr
->rmap_change_flags
)
1774 && !CHECK_FLAG(peer
->af_flags
[afi
][safi
],
1775 PEER_FLAG_NEXTHOP_UNCHANGED
)) {
1776 /* We can reset the nexthop, if setting (or forcing) it to
1778 if (CHECK_FLAG(peer
->af_flags
[afi
][safi
],
1779 PEER_FLAG_NEXTHOP_SELF
)
1780 || CHECK_FLAG(peer
->af_flags
[afi
][safi
],
1781 PEER_FLAG_FORCE_NEXTHOP_SELF
)) {
1783 || CHECK_FLAG(peer
->af_flags
[afi
][safi
],
1784 PEER_FLAG_FORCE_NEXTHOP_SELF
))
1785 subgroup_announce_reset_nhop(
1786 (peer_cap_enhe(peer
, afi
, safi
)
1790 } else if (peer
->sort
== BGP_PEER_EBGP
) {
1791 /* Can also reset the nexthop if announcing to EBGP, but
1793 * no peer in the subgroup is on a shared subnet.
1794 * Note: 3rd party nexthop currently implemented for
1797 if (!bgp_subgrp_multiaccess_check_v4(riattr
->nexthop
,
1799 subgroup_announce_reset_nhop(
1800 (peer_cap_enhe(peer
, afi
, safi
)
1804 } else if (CHECK_FLAG(ri
->flags
, BGP_INFO_ANNC_NH_SELF
)) {
1806 * This flag is used for leaked vpn-vrf routes
1808 int family
= p
->family
;
1810 if (peer_cap_enhe(peer
, afi
, safi
))
1813 if (bgp_debug_update(NULL
, p
, subgrp
->update_group
, 0))
1815 "%s: BGP_INFO_ANNC_NH_SELF, family=%s",
1816 __func__
, family2str(family
));
1817 subgroup_announce_reset_nhop(family
, attr
);
1820 /* If IPv6/MP and nexthop does not have any override and happens
1822 * be a link-local address, reset it so that we don't pass along
1824 * source's link-local IPv6 address to recipients who may not be
1826 * the same interface.
1828 if (p
->family
== AF_INET6
|| peer_cap_enhe(peer
, afi
, safi
)) {
1829 if (IN6_IS_ADDR_LINKLOCAL(&attr
->mp_nexthop_global
))
1830 subgroup_announce_reset_nhop(AF_INET6
, attr
);
1837 void bgp_best_selection(struct bgp
*bgp
, struct bgp_node
*rn
,
1838 struct bgp_maxpaths_cfg
*mpath_cfg
,
1839 struct bgp_info_pair
*result
, afi_t afi
, safi_t safi
)
1841 struct bgp_info
*new_select
;
1842 struct bgp_info
*old_select
;
1843 struct bgp_info
*ri
;
1844 struct bgp_info
*ri1
;
1845 struct bgp_info
*ri2
;
1846 struct bgp_info
*nextri
= NULL
;
1847 int paths_eq
, do_mpath
, debug
;
1848 struct list mp_list
;
1849 char pfx_buf
[PREFIX2STR_BUFFER
];
1850 char path_buf
[PATH_ADDPATH_STR_BUFFER
];
1852 bgp_mp_list_init(&mp_list
);
1854 (mpath_cfg
->maxpaths_ebgp
> 1 || mpath_cfg
->maxpaths_ibgp
> 1);
1856 debug
= bgp_debug_bestpath(&rn
->p
);
1859 prefix2str(&rn
->p
, pfx_buf
, sizeof(pfx_buf
));
1861 /* bgp deterministic-med */
1863 if (bgp_flag_check(bgp
, BGP_FLAG_DETERMINISTIC_MED
)) {
1865 /* Clear BGP_INFO_DMED_SELECTED for all paths */
1866 for (ri1
= rn
->info
; ri1
; ri1
= ri1
->next
)
1867 bgp_info_unset_flag(rn
, ri1
, BGP_INFO_DMED_SELECTED
);
1869 for (ri1
= rn
->info
; ri1
; ri1
= ri1
->next
) {
1870 if (CHECK_FLAG(ri1
->flags
, BGP_INFO_DMED_CHECK
))
1872 if (BGP_INFO_HOLDDOWN(ri1
))
1874 if (ri1
->peer
&& ri1
->peer
!= bgp
->peer_self
)
1875 if (ri1
->peer
->status
!= Established
)
1880 for (ri2
= ri1
->next
; ri2
; ri2
= ri2
->next
) {
1881 if (CHECK_FLAG(ri2
->flags
,
1882 BGP_INFO_DMED_CHECK
))
1884 if (BGP_INFO_HOLDDOWN(ri2
))
1887 && ri2
->peer
!= bgp
->peer_self
1890 PEER_STATUS_NSF_WAIT
))
1891 if (ri2
->peer
->status
1895 if (aspath_cmp_left(ri1
->attr
->aspath
,
1897 || aspath_cmp_left_confed(
1899 ri2
->attr
->aspath
)) {
1900 if (bgp_info_cmp(bgp
, ri2
,
1906 bgp_info_unset_flag(
1908 BGP_INFO_DMED_SELECTED
);
1914 BGP_INFO_DMED_CHECK
);
1918 bgp_info_set_flag(rn
, new_select
, BGP_INFO_DMED_CHECK
);
1919 bgp_info_set_flag(rn
, new_select
,
1920 BGP_INFO_DMED_SELECTED
);
1923 bgp_info_path_with_addpath_rx_str(new_select
,
1925 zlog_debug("%s: %s is the bestpath from AS %u",
1927 aspath_get_first_as(
1928 new_select
->attr
->aspath
));
1933 /* Check old selected route and new selected route. */
1936 for (ri
= rn
->info
; (ri
!= NULL
) && (nextri
= ri
->next
, 1);
1938 if (CHECK_FLAG(ri
->flags
, BGP_INFO_SELECTED
))
1941 if (BGP_INFO_HOLDDOWN(ri
)) {
1942 /* reap REMOVED routes, if needs be
1943 * selected route must stay for a while longer though
1945 if (CHECK_FLAG(ri
->flags
, BGP_INFO_REMOVED
)
1946 && (ri
!= old_select
))
1947 bgp_info_reap(rn
, ri
);
1950 zlog_debug("%s: ri %p in holddown", __func__
,
1956 if (ri
->peer
&& ri
->peer
!= bgp
->peer_self
1957 && !CHECK_FLAG(ri
->peer
->sflags
, PEER_STATUS_NSF_WAIT
))
1958 if (ri
->peer
->status
!= Established
) {
1962 "%s: ri %p non self peer %s not estab state",
1963 __func__
, ri
, ri
->peer
->host
);
1968 if (bgp_flag_check(bgp
, BGP_FLAG_DETERMINISTIC_MED
)
1969 && (!CHECK_FLAG(ri
->flags
, BGP_INFO_DMED_SELECTED
))) {
1970 bgp_info_unset_flag(rn
, ri
, BGP_INFO_DMED_CHECK
);
1972 zlog_debug("%s: ri %p dmed", __func__
, ri
);
1976 bgp_info_unset_flag(rn
, ri
, BGP_INFO_DMED_CHECK
);
1978 if (bgp_info_cmp(bgp
, ri
, new_select
, &paths_eq
, mpath_cfg
,
1979 debug
, pfx_buf
, afi
, safi
)) {
1984 /* Now that we know which path is the bestpath see if any of the other
1986 * qualify as multipaths
1990 bgp_info_path_with_addpath_rx_str(new_select
, path_buf
);
1992 sprintf(path_buf
, "NONE");
1994 "%s: After path selection, newbest is %s oldbest was %s",
1996 old_select
? old_select
->peer
->host
: "NONE");
1999 if (do_mpath
&& new_select
) {
2000 for (ri
= rn
->info
; (ri
!= NULL
) && (nextri
= ri
->next
, 1);
2004 bgp_info_path_with_addpath_rx_str(ri
, path_buf
);
2006 if (ri
== new_select
) {
2009 "%s: %s is the bestpath, add to the multipath list",
2011 bgp_mp_list_add(&mp_list
, ri
);
2015 if (BGP_INFO_HOLDDOWN(ri
))
2018 if (ri
->peer
&& ri
->peer
!= bgp
->peer_self
2019 && !CHECK_FLAG(ri
->peer
->sflags
,
2020 PEER_STATUS_NSF_WAIT
))
2021 if (ri
->peer
->status
!= Established
)
2024 if (!bgp_info_nexthop_cmp(ri
, new_select
)) {
2027 "%s: %s has the same nexthop as the bestpath, skip it",
2032 bgp_info_cmp(bgp
, ri
, new_select
, &paths_eq
, mpath_cfg
,
2033 debug
, pfx_buf
, afi
, safi
);
2038 "%s: %s is equivalent to the bestpath, add to the multipath list",
2040 bgp_mp_list_add(&mp_list
, ri
);
2045 bgp_info_mpath_update(rn
, new_select
, old_select
, &mp_list
, mpath_cfg
);
2046 bgp_info_mpath_aggregate_update(new_select
, old_select
);
2047 bgp_mp_list_clear(&mp_list
);
2049 result
->old
= old_select
;
2050 result
->new = new_select
;
2056 * A new route/change in bestpath of an existing route. Evaluate the path
2057 * for advertisement to the subgroup.
2059 int subgroup_process_announce_selected(struct update_subgroup
*subgrp
,
2060 struct bgp_info
*selected
,
2061 struct bgp_node
*rn
,
2062 uint32_t addpath_tx_id
)
2065 struct peer
*onlypeer
;
2071 afi
= SUBGRP_AFI(subgrp
);
2072 safi
= SUBGRP_SAFI(subgrp
);
2073 onlypeer
= ((SUBGRP_PCOUNT(subgrp
) == 1) ? (SUBGRP_PFIRST(subgrp
))->peer
2076 if (BGP_DEBUG(update
, UPDATE_OUT
)) {
2077 char buf_prefix
[PREFIX_STRLEN
];
2078 prefix2str(p
, buf_prefix
, sizeof(buf_prefix
));
2079 zlog_debug("%s: p=%s, selected=%p", __func__
, buf_prefix
,
2083 /* First update is deferred until ORF or ROUTE-REFRESH is received */
2084 if (onlypeer
&& CHECK_FLAG(onlypeer
->af_sflags
[afi
][safi
],
2085 PEER_STATUS_ORF_WAIT_REFRESH
))
2088 memset(&attr
, 0, sizeof(struct attr
));
2089 /* It's initialized in bgp_announce_check() */
2091 /* Announcement to the subgroup. If the route is filtered withdraw it.
2094 if (subgroup_announce_check(rn
, selected
, subgrp
, p
, &attr
))
2095 bgp_adj_out_set_subgroup(rn
, subgrp
, &attr
, selected
);
2097 bgp_adj_out_unset_subgroup(rn
, subgrp
, 1,
2098 selected
->addpath_tx_id
);
2101 /* If selected is NULL we must withdraw the path using addpath_tx_id */
2103 bgp_adj_out_unset_subgroup(rn
, subgrp
, 1, addpath_tx_id
);
2110 * Clear IGP changed flag and attribute changed flag for a route (all paths).
2111 * This is called at the end of route processing.
2113 void bgp_zebra_clear_route_change_flags(struct bgp_node
*rn
)
2115 struct bgp_info
*ri
;
2117 for (ri
= rn
->info
; ri
; ri
= ri
->next
) {
2118 if (BGP_INFO_HOLDDOWN(ri
))
2120 UNSET_FLAG(ri
->flags
, BGP_INFO_IGP_CHANGED
);
2121 UNSET_FLAG(ri
->flags
, BGP_INFO_ATTR_CHANGED
);
2126 * Has the route changed from the RIB's perspective? This is invoked only
2127 * if the route selection returns the same best route as earlier - to
2128 * determine if we need to update zebra or not.
2130 int bgp_zebra_has_route_changed(struct bgp_node
*rn
, struct bgp_info
*selected
)
2132 struct bgp_info
*mpinfo
;
2134 /* If this is multipath, check all selected paths for any nexthop
2135 * change or attribute change. Some attribute changes (e.g., community)
2136 * aren't of relevance to the RIB, but we'll update zebra to ensure
2137 * we handle the case of BGP nexthop change. This is the behavior
2138 * when the best path has an attribute change anyway.
2140 if (CHECK_FLAG(selected
->flags
, BGP_INFO_IGP_CHANGED
)
2141 || CHECK_FLAG(selected
->flags
, BGP_INFO_MULTIPATH_CHG
))
2145 * If this is multipath, check all selected paths for any nexthop change
2147 for (mpinfo
= bgp_info_mpath_first(selected
); mpinfo
;
2148 mpinfo
= bgp_info_mpath_next(mpinfo
)) {
2149 if (CHECK_FLAG(mpinfo
->flags
, BGP_INFO_IGP_CHANGED
)
2150 || CHECK_FLAG(mpinfo
->flags
, BGP_INFO_ATTR_CHANGED
))
2154 /* Nothing has changed from the RIB's perspective. */
2158 struct bgp_process_queue
{
2160 STAILQ_HEAD(, bgp_node
) pqueue
;
2161 #define BGP_PROCESS_QUEUE_EOIU_MARKER (1 << 0)
2163 unsigned int queued
;
2167 * old_select = The old best path
2168 * new_select = the new best path
2170 * if (!old_select && new_select)
2171 * We are sending new information on.
2173 * if (old_select && new_select) {
2174 * if (new_select != old_select)
2175 * We have a new best path send a change
2177 * We've received a update with new attributes that needs
2181 * if (old_select && !new_select)
2182 * We have no eligible route that we can announce or the rn
2185 static void bgp_process_main_one(struct bgp
*bgp
, struct bgp_node
*rn
,
2186 afi_t afi
, safi_t safi
)
2188 struct bgp_info
*new_select
;
2189 struct bgp_info
*old_select
;
2190 struct bgp_info_pair old_and_new
;
2191 char pfx_buf
[PREFIX2STR_BUFFER
];
2194 /* Is it end of initial update? (after startup) */
2196 quagga_timestamp(3, bgp
->update_delay_zebra_resume_time
,
2197 sizeof(bgp
->update_delay_zebra_resume_time
));
2199 bgp
->main_zebra_update_hold
= 0;
2200 FOREACH_AFI_SAFI (afi
, safi
) {
2201 if (bgp_fibupd_safi(safi
))
2202 bgp_zebra_announce_table(bgp
, afi
, safi
);
2204 bgp
->main_peers_update_hold
= 0;
2206 bgp_start_routeadv(bgp
);
2210 struct prefix
*p
= &rn
->p
;
2212 debug
= bgp_debug_bestpath(&rn
->p
);
2214 prefix2str(&rn
->p
, pfx_buf
, sizeof(pfx_buf
));
2215 zlog_debug("%s: p=%s afi=%s, safi=%s start", __func__
, pfx_buf
,
2216 afi2str(afi
), safi2str(safi
));
2219 /* Best path selection. */
2220 bgp_best_selection(bgp
, rn
, &bgp
->maxpaths
[afi
][safi
], &old_and_new
,
2222 old_select
= old_and_new
.old
;
2223 new_select
= old_and_new
.new;
2225 /* Do we need to allocate or free labels?
2226 * Right now, since we only deal with per-prefix labels, it is not
2227 * necessary to do this upon changes to best path except if the label
2230 if (bgp
->allocate_mpls_labels
[afi
][safi
]) {
2233 || bgp_label_index_differs(new_select
, old_select
)
2234 || new_select
->sub_type
!= old_select
->sub_type
) {
2235 if (new_select
->sub_type
== BGP_ROUTE_STATIC
2236 && new_select
->attr
->flag
2238 BGP_ATTR_PREFIX_SID
)
2239 && new_select
->attr
->label_index
2240 != BGP_INVALID_LABEL_INDEX
) {
2243 BGP_NODE_REGISTERED_FOR_LABEL
))
2244 bgp_unregister_for_label(rn
);
2245 label_ntop(MPLS_LABEL_IMPLICIT_NULL
, 1,
2247 bgp_set_valid_label(&rn
->local_label
);
2249 bgp_register_for_label(rn
, new_select
);
2251 } else if (CHECK_FLAG(rn
->flags
,
2252 BGP_NODE_REGISTERED_FOR_LABEL
)) {
2253 bgp_unregister_for_label(rn
);
2255 } else if (CHECK_FLAG(rn
->flags
, BGP_NODE_REGISTERED_FOR_LABEL
)) {
2256 bgp_unregister_for_label(rn
);
2260 prefix2str(&rn
->p
, pfx_buf
, sizeof(pfx_buf
));
2262 "%s: p=%s afi=%s, safi=%s, old_select=%p, new_select=%p",
2263 __func__
, pfx_buf
, afi2str(afi
), safi2str(safi
),
2264 old_select
, new_select
);
2267 /* If best route remains the same and this is not due to user-initiated
2268 * clear, see exactly what needs to be done.
2270 if (old_select
&& old_select
== new_select
2271 && !CHECK_FLAG(rn
->flags
, BGP_NODE_USER_CLEAR
)
2272 && !CHECK_FLAG(old_select
->flags
, BGP_INFO_ATTR_CHANGED
)
2273 && !bgp
->addpath_tx_used
[afi
][safi
]) {
2274 if (bgp_zebra_has_route_changed(rn
, old_select
)) {
2276 vnc_import_bgp_add_route(bgp
, p
, old_select
);
2277 vnc_import_bgp_exterior_add_route(bgp
, p
, old_select
);
2279 if (bgp_fibupd_safi(safi
)
2280 && !bgp_option_check(BGP_OPT_NO_FIB
)) {
2282 if (new_select
->type
== ZEBRA_ROUTE_BGP
2283 && (new_select
->sub_type
== BGP_ROUTE_NORMAL
2284 || new_select
->sub_type
2285 == BGP_ROUTE_IMPORTED
))
2287 bgp_zebra_announce(rn
, p
, old_select
,
2291 UNSET_FLAG(old_select
->flags
, BGP_INFO_MULTIPATH_CHG
);
2292 bgp_zebra_clear_route_change_flags(rn
);
2294 /* If there is a change of interest to peers, reannounce the
2296 if (CHECK_FLAG(old_select
->flags
, BGP_INFO_ATTR_CHANGED
)
2297 || CHECK_FLAG(rn
->flags
, BGP_NODE_LABEL_CHANGED
)) {
2298 group_announce_route(bgp
, afi
, safi
, rn
, new_select
);
2300 /* unicast routes must also be annouced to
2301 * labeled-unicast update-groups */
2302 if (safi
== SAFI_UNICAST
)
2303 group_announce_route(bgp
, afi
,
2304 SAFI_LABELED_UNICAST
, rn
,
2307 UNSET_FLAG(old_select
->flags
, BGP_INFO_ATTR_CHANGED
);
2308 UNSET_FLAG(rn
->flags
, BGP_NODE_LABEL_CHANGED
);
2311 UNSET_FLAG(rn
->flags
, BGP_NODE_PROCESS_SCHEDULED
);
2315 /* If the user did "clear ip bgp prefix x.x.x.x" this flag will be set
2317 UNSET_FLAG(rn
->flags
, BGP_NODE_USER_CLEAR
);
2319 /* bestpath has changed; bump version */
2320 if (old_select
|| new_select
) {
2321 bgp_bump_version(rn
);
2323 if (!bgp
->t_rmap_def_originate_eval
) {
2327 update_group_refresh_default_originate_route_map
,
2328 bgp
, RMAP_DEFAULT_ORIGINATE_EVAL_TIMER
,
2329 &bgp
->t_rmap_def_originate_eval
);
2334 bgp_info_unset_flag(rn
, old_select
, BGP_INFO_SELECTED
);
2337 zlog_debug("%s: setting SELECTED flag", __func__
);
2338 bgp_info_set_flag(rn
, new_select
, BGP_INFO_SELECTED
);
2339 bgp_info_unset_flag(rn
, new_select
, BGP_INFO_ATTR_CHANGED
);
2340 UNSET_FLAG(new_select
->flags
, BGP_INFO_MULTIPATH_CHG
);
2344 if ((afi
== AFI_IP
|| afi
== AFI_IP6
) && (safi
== SAFI_UNICAST
)) {
2345 if (old_select
!= new_select
) {
2347 vnc_import_bgp_exterior_del_route(bgp
, p
,
2349 vnc_import_bgp_del_route(bgp
, p
, old_select
);
2352 vnc_import_bgp_exterior_add_route(bgp
, p
,
2354 vnc_import_bgp_add_route(bgp
, p
, new_select
);
2360 group_announce_route(bgp
, afi
, safi
, rn
, new_select
);
2362 /* unicast routes must also be annouced to labeled-unicast update-groups
2364 if (safi
== SAFI_UNICAST
)
2365 group_announce_route(bgp
, afi
, SAFI_LABELED_UNICAST
, rn
,
2369 if (bgp_fibupd_safi(safi
) && (bgp
->inst_type
!= BGP_INSTANCE_TYPE_VIEW
)
2370 && !bgp_option_check(BGP_OPT_NO_FIB
)) {
2371 if (new_select
&& new_select
->type
== ZEBRA_ROUTE_BGP
2372 && (new_select
->sub_type
== BGP_ROUTE_NORMAL
2373 || new_select
->sub_type
== BGP_ROUTE_AGGREGATE
2374 || new_select
->sub_type
== BGP_ROUTE_IMPORTED
)) {
2376 /* if this is an evpn imported type-5 prefix,
2377 * we need to withdraw the route first to clear
2378 * the nh neigh and the RMAC entry.
2381 is_route_parent_evpn(old_select
))
2382 bgp_zebra_withdraw(p
, old_select
, bgp
, safi
);
2384 bgp_zebra_announce(rn
, p
, new_select
, bgp
, afi
, safi
);
2386 /* Withdraw the route from the kernel. */
2387 if (old_select
&& old_select
->type
== ZEBRA_ROUTE_BGP
2388 && (old_select
->sub_type
== BGP_ROUTE_NORMAL
2389 || old_select
->sub_type
== BGP_ROUTE_AGGREGATE
2390 || old_select
->sub_type
== BGP_ROUTE_IMPORTED
))
2392 bgp_zebra_withdraw(p
, old_select
, bgp
, safi
);
2396 /* advertise/withdraw type-5 routes */
2397 if ((afi
== AFI_IP
|| afi
== AFI_IP6
) && (safi
== SAFI_UNICAST
)) {
2398 if (advertise_type5_routes(bgp
, afi
) && new_select
&&
2399 (!new_select
->extra
|| !new_select
->extra
->parent
)) {
2401 /* apply the route-map */
2402 if (bgp
->adv_cmd_rmap
[afi
][safi
].map
) {
2405 ret
= route_map_apply(
2406 bgp
->adv_cmd_rmap
[afi
][safi
].map
,
2407 &rn
->p
, RMAP_BGP
, new_select
);
2408 if (ret
== RMAP_MATCH
)
2409 bgp_evpn_advertise_type5_route(
2410 bgp
, &rn
->p
, new_select
->attr
,
2413 bgp_evpn_advertise_type5_route(bgp
,
2419 } else if (advertise_type5_routes(bgp
, afi
) && old_select
&&
2420 (!old_select
->extra
|| !old_select
->extra
->parent
))
2421 bgp_evpn_withdraw_type5_route(bgp
, &rn
->p
, afi
, safi
);
2424 /* Clear any route change flags. */
2425 bgp_zebra_clear_route_change_flags(rn
);
2427 /* Reap old select bgp_info, if it has been removed */
2428 if (old_select
&& CHECK_FLAG(old_select
->flags
, BGP_INFO_REMOVED
))
2429 bgp_info_reap(rn
, old_select
);
2431 UNSET_FLAG(rn
->flags
, BGP_NODE_PROCESS_SCHEDULED
);
2435 static wq_item_status
bgp_process_wq(struct work_queue
*wq
, void *data
)
2437 struct bgp_process_queue
*pqnode
= data
;
2438 struct bgp
*bgp
= pqnode
->bgp
;
2439 struct bgp_table
*table
;
2440 struct bgp_node
*rn
;
2443 if (CHECK_FLAG(pqnode
->flags
, BGP_PROCESS_QUEUE_EOIU_MARKER
)) {
2444 bgp_process_main_one(bgp
, NULL
, 0, 0);
2445 /* should always have dedicated wq call */
2446 assert(STAILQ_FIRST(&pqnode
->pqueue
) == NULL
);
2450 while (!STAILQ_EMPTY(&pqnode
->pqueue
)) {
2451 rn
= STAILQ_FIRST(&pqnode
->pqueue
);
2452 STAILQ_REMOVE_HEAD(&pqnode
->pqueue
, pq
);
2453 STAILQ_NEXT(rn
, pq
) = NULL
; /* complete unlink */
2454 table
= bgp_node_table(rn
);
2455 /* note, new RNs may be added as part of processing */
2456 bgp_process_main_one(bgp
, rn
, table
->afi
, table
->safi
);
2458 bgp_unlock_node(rn
);
2459 bgp_table_unlock(table
);
2465 static void bgp_processq_del(struct work_queue
*wq
, void *data
)
2467 struct bgp_process_queue
*pqnode
= data
;
2469 bgp_unlock(pqnode
->bgp
);
2471 XFREE(MTYPE_BGP_PROCESS_QUEUE
, pqnode
);
2474 void bgp_process_queue_init(void)
2476 if (!bm
->process_main_queue
)
2477 bm
->process_main_queue
=
2478 work_queue_new(bm
->master
, "process_main_queue");
2480 bm
->process_main_queue
->spec
.workfunc
= &bgp_process_wq
;
2481 bm
->process_main_queue
->spec
.del_item_data
= &bgp_processq_del
;
2482 bm
->process_main_queue
->spec
.max_retries
= 0;
2483 bm
->process_main_queue
->spec
.hold
= 50;
2484 /* Use a higher yield value of 50ms for main queue processing */
2485 bm
->process_main_queue
->spec
.yield
= 50 * 1000L;
2488 static struct bgp_process_queue
*bgp_processq_alloc(struct bgp
*bgp
)
2490 struct bgp_process_queue
*pqnode
;
2492 pqnode
= XCALLOC(MTYPE_BGP_PROCESS_QUEUE
,
2493 sizeof(struct bgp_process_queue
));
2495 /* unlocked in bgp_processq_del */
2496 pqnode
->bgp
= bgp_lock(bgp
);
2497 STAILQ_INIT(&pqnode
->pqueue
);
2502 void bgp_process(struct bgp
*bgp
, struct bgp_node
*rn
, afi_t afi
, safi_t safi
)
2504 #define ARBITRARY_PROCESS_QLEN 10000
2505 struct work_queue
*wq
= bm
->process_main_queue
;
2506 struct bgp_process_queue
*pqnode
;
2507 int pqnode_reuse
= 0;
2509 /* already scheduled for processing? */
2510 if (CHECK_FLAG(rn
->flags
, BGP_NODE_PROCESS_SCHEDULED
))
2516 /* Add route nodes to an existing work queue item until reaching the
2517 limit only if is from the same BGP view and it's not an EOIU marker
2519 if (work_queue_item_count(wq
)) {
2520 struct work_queue_item
*item
= work_queue_last_item(wq
);
2521 pqnode
= item
->data
;
2523 if (CHECK_FLAG(pqnode
->flags
, BGP_PROCESS_QUEUE_EOIU_MARKER
)
2524 || pqnode
->bgp
!= bgp
2525 || pqnode
->queued
>= ARBITRARY_PROCESS_QLEN
)
2526 pqnode
= bgp_processq_alloc(bgp
);
2530 pqnode
= bgp_processq_alloc(bgp
);
2531 /* all unlocked in bgp_process_wq */
2532 bgp_table_lock(bgp_node_table(rn
));
2534 SET_FLAG(rn
->flags
, BGP_NODE_PROCESS_SCHEDULED
);
2537 /* can't be enqueued twice */
2538 assert(STAILQ_NEXT(rn
, pq
) == NULL
);
2539 STAILQ_INSERT_TAIL(&pqnode
->pqueue
, rn
, pq
);
2543 work_queue_add(wq
, pqnode
);
2548 void bgp_add_eoiu_mark(struct bgp
*bgp
)
2550 struct bgp_process_queue
*pqnode
;
2552 if (bm
->process_main_queue
== NULL
)
2555 pqnode
= bgp_processq_alloc(bgp
);
2557 SET_FLAG(pqnode
->flags
, BGP_PROCESS_QUEUE_EOIU_MARKER
);
2558 work_queue_add(bm
->process_main_queue
, pqnode
);
2561 static int bgp_maximum_prefix_restart_timer(struct thread
*thread
)
2565 peer
= THREAD_ARG(thread
);
2566 peer
->t_pmax_restart
= NULL
;
2568 if (bgp_debug_neighbor_events(peer
))
2570 "%s Maximum-prefix restart timer expired, restore peering",
2573 if ((peer_clear(peer
, NULL
) < 0) && bgp_debug_neighbor_events(peer
))
2574 zlog_debug("%s: %s peer_clear failed",
2575 __PRETTY_FUNCTION__
, peer
->host
);
2580 int bgp_maximum_prefix_overflow(struct peer
*peer
, afi_t afi
, safi_t safi
,
2584 iana_safi_t pkt_safi
;
2586 if (!CHECK_FLAG(peer
->af_flags
[afi
][safi
], PEER_FLAG_MAX_PREFIX
))
2589 if (peer
->pcount
[afi
][safi
] > peer
->pmax
[afi
][safi
]) {
2590 if (CHECK_FLAG(peer
->af_sflags
[afi
][safi
],
2591 PEER_STATUS_PREFIX_LIMIT
)
2596 "%%MAXPFXEXCEED: No. of %s prefix received from %s %ld exceed, "
2598 afi_safi_print(afi
, safi
), peer
->host
,
2599 peer
->pcount
[afi
][safi
], peer
->pmax
[afi
][safi
]);
2600 SET_FLAG(peer
->af_sflags
[afi
][safi
], PEER_STATUS_PREFIX_LIMIT
);
2602 if (CHECK_FLAG(peer
->af_flags
[afi
][safi
],
2603 PEER_FLAG_MAX_PREFIX_WARNING
))
2606 /* Convert AFI, SAFI to values for packet. */
2607 pkt_afi
= afi_int2iana(afi
);
2608 pkt_safi
= safi_int2iana(safi
);
2612 ndata
[0] = (pkt_afi
>> 8);
2614 ndata
[2] = pkt_safi
;
2615 ndata
[3] = (peer
->pmax
[afi
][safi
] >> 24);
2616 ndata
[4] = (peer
->pmax
[afi
][safi
] >> 16);
2617 ndata
[5] = (peer
->pmax
[afi
][safi
] >> 8);
2618 ndata
[6] = (peer
->pmax
[afi
][safi
]);
2620 SET_FLAG(peer
->sflags
, PEER_STATUS_PREFIX_OVERFLOW
);
2621 bgp_notify_send_with_data(peer
, BGP_NOTIFY_CEASE
,
2622 BGP_NOTIFY_CEASE_MAX_PREFIX
,
2626 /* Dynamic peers will just close their connection. */
2627 if (peer_dynamic_neighbor(peer
))
2630 /* restart timer start */
2631 if (peer
->pmax_restart
[afi
][safi
]) {
2632 peer
->v_pmax_restart
=
2633 peer
->pmax_restart
[afi
][safi
] * 60;
2635 if (bgp_debug_neighbor_events(peer
))
2637 "%s Maximum-prefix restart timer started for %d secs",
2638 peer
->host
, peer
->v_pmax_restart
);
2640 BGP_TIMER_ON(peer
->t_pmax_restart
,
2641 bgp_maximum_prefix_restart_timer
,
2642 peer
->v_pmax_restart
);
2647 UNSET_FLAG(peer
->af_sflags
[afi
][safi
],
2648 PEER_STATUS_PREFIX_LIMIT
);
2650 if (peer
->pcount
[afi
][safi
]
2651 > (peer
->pmax
[afi
][safi
] * peer
->pmax_threshold
[afi
][safi
] / 100)) {
2652 if (CHECK_FLAG(peer
->af_sflags
[afi
][safi
],
2653 PEER_STATUS_PREFIX_THRESHOLD
)
2658 "%%MAXPFX: No. of %s prefix received from %s reaches %ld, max %ld",
2659 afi_safi_print(afi
, safi
), peer
->host
,
2660 peer
->pcount
[afi
][safi
], peer
->pmax
[afi
][safi
]);
2661 SET_FLAG(peer
->af_sflags
[afi
][safi
],
2662 PEER_STATUS_PREFIX_THRESHOLD
);
2664 UNSET_FLAG(peer
->af_sflags
[afi
][safi
],
2665 PEER_STATUS_PREFIX_THRESHOLD
);
2669 /* Unconditionally remove the route from the RIB, without taking
2670 * damping into consideration (eg, because the session went down)
2672 void bgp_rib_remove(struct bgp_node
*rn
, struct bgp_info
*ri
, struct peer
*peer
,
2673 afi_t afi
, safi_t safi
)
2675 bgp_aggregate_decrement(peer
->bgp
, &rn
->p
, ri
, afi
, safi
);
2677 if (!CHECK_FLAG(ri
->flags
, BGP_INFO_HISTORY
))
2678 bgp_info_delete(rn
, ri
); /* keep historical info */
2680 bgp_process(peer
->bgp
, rn
, afi
, safi
);
2683 static void bgp_rib_withdraw(struct bgp_node
*rn
, struct bgp_info
*ri
,
2684 struct peer
*peer
, afi_t afi
, safi_t safi
,
2685 struct prefix_rd
*prd
)
2687 /* apply dampening, if result is suppressed, we'll be retaining
2688 * the bgp_info in the RIB for historical reference.
2690 if (CHECK_FLAG(peer
->bgp
->af_flags
[afi
][safi
], BGP_CONFIG_DAMPENING
)
2691 && peer
->sort
== BGP_PEER_EBGP
)
2692 if ((bgp_damp_withdraw(ri
, rn
, afi
, safi
, 0))
2693 == BGP_DAMP_SUPPRESSED
) {
2694 bgp_aggregate_decrement(peer
->bgp
, &rn
->p
, ri
, afi
,
2700 if (safi
== SAFI_MPLS_VPN
) {
2701 struct bgp_node
*prn
= NULL
;
2702 struct bgp_table
*table
= NULL
;
2704 prn
= bgp_node_get(peer
->bgp
->rib
[afi
][safi
],
2705 (struct prefix
*)prd
);
2707 table
= (struct bgp_table
*)(prn
->info
);
2709 vnc_import_bgp_del_vnc_host_route_mode_resolve_nve(
2710 peer
->bgp
, prd
, table
, &rn
->p
, ri
);
2712 bgp_unlock_node(prn
);
2714 if ((afi
== AFI_IP
|| afi
== AFI_IP6
) && (safi
== SAFI_UNICAST
)) {
2715 if (CHECK_FLAG(ri
->flags
, BGP_INFO_SELECTED
)) {
2717 vnc_import_bgp_del_route(peer
->bgp
, &rn
->p
, ri
);
2718 vnc_import_bgp_exterior_del_route(peer
->bgp
, &rn
->p
,
2724 /* If this is an EVPN route, process for un-import. */
2725 if (safi
== SAFI_EVPN
)
2726 bgp_evpn_unimport_route(peer
->bgp
, afi
, safi
, &rn
->p
, ri
);
2728 bgp_rib_remove(rn
, ri
, peer
, afi
, safi
);
2731 struct bgp_info
*info_make(int type
, int sub_type
, unsigned short instance
,
2732 struct peer
*peer
, struct attr
*attr
,
2733 struct bgp_node
*rn
)
2735 struct bgp_info
*new;
2737 /* Make new BGP info. */
2738 new = XCALLOC(MTYPE_BGP_ROUTE
, sizeof(struct bgp_info
));
2740 new->instance
= instance
;
2741 new->sub_type
= sub_type
;
2744 new->uptime
= bgp_clock();
2746 new->addpath_tx_id
= ++peer
->bgp
->addpath_tx_id
;
2750 static void overlay_index_update(struct attr
*attr
,
2751 struct eth_segment_id
*eth_s_id
,
2752 union gw_addr
*gw_ip
)
2757 if (eth_s_id
== NULL
) {
2758 memset(&(attr
->evpn_overlay
.eth_s_id
), 0,
2759 sizeof(struct eth_segment_id
));
2761 memcpy(&(attr
->evpn_overlay
.eth_s_id
), eth_s_id
,
2762 sizeof(struct eth_segment_id
));
2764 if (gw_ip
== NULL
) {
2765 memset(&(attr
->evpn_overlay
.gw_ip
), 0, sizeof(union gw_addr
));
2767 memcpy(&(attr
->evpn_overlay
.gw_ip
), gw_ip
,
2768 sizeof(union gw_addr
));
2772 static bool overlay_index_equal(afi_t afi
, struct bgp_info
*info
,
2773 struct eth_segment_id
*eth_s_id
,
2774 union gw_addr
*gw_ip
)
2776 struct eth_segment_id
*info_eth_s_id
, *info_eth_s_id_remote
;
2777 union gw_addr
*info_gw_ip
, *info_gw_ip_remote
;
2780 if (afi
!= AFI_L2VPN
)
2783 memset(&temp
, 0, 16);
2784 info_eth_s_id
= (struct eth_segment_id
*)&temp
;
2785 info_gw_ip
= (union gw_addr
*)&temp
;
2786 if (eth_s_id
== NULL
&& gw_ip
== NULL
)
2789 info_eth_s_id
= &(info
->attr
->evpn_overlay
.eth_s_id
);
2790 info_gw_ip
= &(info
->attr
->evpn_overlay
.gw_ip
);
2793 info_gw_ip_remote
= (union gw_addr
*)&temp
;
2795 info_gw_ip_remote
= gw_ip
;
2796 if (eth_s_id
== NULL
)
2797 info_eth_s_id_remote
= (struct eth_segment_id
*)&temp
;
2799 info_eth_s_id_remote
= eth_s_id
;
2800 if (!memcmp(info_gw_ip
, info_gw_ip_remote
, sizeof(union gw_addr
)))
2802 return !memcmp(info_eth_s_id
, info_eth_s_id_remote
,
2803 sizeof(struct eth_segment_id
));
2806 /* Check if received nexthop is valid or not. */
2807 static int bgp_update_martian_nexthop(struct bgp
*bgp
, afi_t afi
, safi_t safi
,
2812 /* Only validated for unicast and multicast currently. */
2813 /* Also valid for EVPN where the nexthop is an IP address. */
2814 if (safi
!= SAFI_UNICAST
&& safi
!= SAFI_MULTICAST
&& safi
!= SAFI_EVPN
)
2817 /* If NEXT_HOP is present, validate it. */
2818 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_NEXT_HOP
)) {
2819 if (attr
->nexthop
.s_addr
== 0
2820 || IPV4_CLASS_DE(ntohl(attr
->nexthop
.s_addr
))
2821 || bgp_nexthop_self(bgp
, attr
->nexthop
))
2825 /* If MP_NEXTHOP is present, validate it. */
2826 /* Note: For IPv6 nexthops, we only validate the global (1st) nexthop;
2827 * there is code in bgp_attr.c to ignore the link-local (2nd) nexthop if
2828 * it is not an IPv6 link-local address.
2830 if (attr
->mp_nexthop_len
) {
2831 switch (attr
->mp_nexthop_len
) {
2832 case BGP_ATTR_NHLEN_IPV4
:
2833 case BGP_ATTR_NHLEN_VPNV4
:
2834 ret
= (attr
->mp_nexthop_global_in
.s_addr
== 0
2835 || IPV4_CLASS_DE(ntohl(
2836 attr
->mp_nexthop_global_in
.s_addr
))
2837 || bgp_nexthop_self(bgp
,
2838 attr
->mp_nexthop_global_in
));
2841 case BGP_ATTR_NHLEN_IPV6_GLOBAL
:
2842 case BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL
:
2843 case BGP_ATTR_NHLEN_VPNV6_GLOBAL
:
2844 ret
= (IN6_IS_ADDR_UNSPECIFIED(&attr
->mp_nexthop_global
)
2845 || IN6_IS_ADDR_LOOPBACK(&attr
->mp_nexthop_global
)
2846 || IN6_IS_ADDR_MULTICAST(
2847 &attr
->mp_nexthop_global
));
2859 int bgp_update(struct peer
*peer
, struct prefix
*p
, uint32_t addpath_id
,
2860 struct attr
*attr
, afi_t afi
, safi_t safi
, int type
,
2861 int sub_type
, struct prefix_rd
*prd
, mpls_label_t
*label
,
2862 uint32_t num_labels
, int soft_reconfig
,
2863 struct bgp_route_evpn
*evpn
)
2866 int aspath_loop_count
= 0;
2867 struct bgp_node
*rn
;
2869 struct attr new_attr
;
2870 struct attr
*attr_new
;
2871 struct bgp_info
*ri
;
2872 struct bgp_info
*new;
2873 struct bgp_info_extra
*extra
;
2875 char pfx_buf
[BGP_PRD_PATH_STRLEN
];
2877 int do_loop_check
= 1;
2878 int has_valid_label
= 0;
2880 int vnc_implicit_withdraw
= 0;
2884 memset(&new_attr
, 0, sizeof(struct attr
));
2885 new_attr
.label_index
= BGP_INVALID_LABEL_INDEX
;
2886 new_attr
.label
= MPLS_INVALID_LABEL
;
2889 rn
= bgp_afi_node_get(bgp
->rib
[afi
][safi
], afi
, safi
, p
, prd
);
2890 /* TODO: Check to see if we can get rid of "is_valid_label" */
2891 if (afi
== AFI_L2VPN
&& safi
== SAFI_EVPN
)
2892 has_valid_label
= (num_labels
> 0) ? 1 : 0;
2894 has_valid_label
= bgp_is_valid_label(label
);
2896 /* When peer's soft reconfiguration enabled. Record input packet in
2899 && CHECK_FLAG(peer
->af_flags
[afi
][safi
], PEER_FLAG_SOFT_RECONFIG
)
2900 && peer
!= bgp
->peer_self
)
2901 bgp_adj_in_set(rn
, peer
, attr
, addpath_id
);
2903 /* Check previously received route. */
2904 for (ri
= rn
->info
; ri
; ri
= ri
->next
)
2905 if (ri
->peer
== peer
&& ri
->type
== type
2906 && ri
->sub_type
== sub_type
2907 && ri
->addpath_rx_id
== addpath_id
)
2910 /* AS path local-as loop check. */
2911 if (peer
->change_local_as
) {
2912 if (peer
->allowas_in
[afi
][safi
])
2913 aspath_loop_count
= peer
->allowas_in
[afi
][safi
];
2914 else if (!CHECK_FLAG(peer
->flags
,
2915 PEER_FLAG_LOCAL_AS_NO_PREPEND
))
2916 aspath_loop_count
= 1;
2918 if (aspath_loop_check(attr
->aspath
, peer
->change_local_as
)
2919 > aspath_loop_count
) {
2920 reason
= "as-path contains our own AS;";
2925 /* If the peer is configured for "allowas-in origin" and the last ASN in
2927 * as-path is our ASN then we do not need to call aspath_loop_check
2929 if (CHECK_FLAG(peer
->af_flags
[afi
][safi
], PEER_FLAG_ALLOWAS_IN_ORIGIN
))
2930 if (aspath_get_last_as(attr
->aspath
) == bgp
->as
)
2933 /* AS path loop check. */
2934 if (do_loop_check
) {
2935 if (aspath_loop_check(attr
->aspath
, bgp
->as
)
2936 > peer
->allowas_in
[afi
][safi
]
2937 || (CHECK_FLAG(bgp
->config
, BGP_CONFIG_CONFEDERATION
)
2938 && aspath_loop_check(attr
->aspath
, bgp
->confed_id
)
2939 > peer
->allowas_in
[afi
][safi
])) {
2940 reason
= "as-path contains our own AS;";
2945 /* Route reflector originator ID check. */
2946 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID
)
2947 && IPV4_ADDR_SAME(&bgp
->router_id
, &attr
->originator_id
)) {
2948 reason
= "originator is us;";
2952 /* Route reflector cluster ID check. */
2953 if (bgp_cluster_filter(peer
, attr
)) {
2954 reason
= "reflected from the same cluster;";
2958 /* Apply incoming filter. */
2959 if (bgp_input_filter(peer
, p
, attr
, afi
, safi
) == FILTER_DENY
) {
2964 bgp_attr_dup(&new_attr
, attr
);
2966 /* Apply incoming route-map.
2967 * NB: new_attr may now contain newly allocated values from route-map
2969 * commands, so we need bgp_attr_flush in the error paths, until we
2971 * the attr (which takes over the memory references) */
2972 if (bgp_input_modifier(peer
, p
, &new_attr
, afi
, safi
, NULL
)
2974 reason
= "route-map;";
2975 bgp_attr_flush(&new_attr
);
2979 if (peer
->sort
== BGP_PEER_EBGP
) {
2981 /* If we receive the graceful-shutdown community from an eBGP
2982 * peer we must lower local-preference */
2983 if (new_attr
.community
2984 && community_include(new_attr
.community
, COMMUNITY_GSHUT
)) {
2985 new_attr
.flag
|= ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
);
2986 new_attr
.local_pref
= BGP_GSHUT_LOCAL_PREF
;
2988 /* If graceful-shutdown is configured then add the GSHUT
2989 * community to all paths received from eBGP peers */
2990 } else if (bgp_flag_check(peer
->bgp
,
2991 BGP_FLAG_GRACEFUL_SHUTDOWN
)) {
2992 bgp_attr_add_gshut_community(&new_attr
);
2996 /* next hop check. */
2997 if (!CHECK_FLAG(peer
->flags
, PEER_FLAG_IS_RFAPI_HD
)
2998 && bgp_update_martian_nexthop(bgp
, afi
, safi
, &new_attr
)) {
2999 reason
= "martian or self next-hop;";
3000 bgp_attr_flush(&new_attr
);
3004 attr_new
= bgp_attr_intern(&new_attr
);
3006 /* If the update is implicit withdraw. */
3008 ri
->uptime
= bgp_clock();
3009 same_attr
= attrhash_cmp(ri
->attr
, attr_new
);
3011 /* Same attribute comes in. */
3012 if (!CHECK_FLAG(ri
->flags
, BGP_INFO_REMOVED
)
3013 && attrhash_cmp(ri
->attr
, attr_new
)
3014 && (!has_valid_label
3015 || memcmp(&(bgp_info_extra_get(ri
))->label
, label
,
3016 num_labels
* sizeof(mpls_label_t
))
3018 && (overlay_index_equal(
3019 afi
, ri
, evpn
== NULL
? NULL
: &evpn
->eth_s_id
,
3020 evpn
== NULL
? NULL
: &evpn
->gw_ip
))) {
3021 if (CHECK_FLAG(bgp
->af_flags
[afi
][safi
],
3022 BGP_CONFIG_DAMPENING
)
3023 && peer
->sort
== BGP_PEER_EBGP
3024 && CHECK_FLAG(ri
->flags
, BGP_INFO_HISTORY
)) {
3025 if (bgp_debug_update(peer
, p
, NULL
, 1)) {
3026 bgp_debug_rdpfxpath2str(
3027 afi
, safi
, prd
, p
, label
,
3028 num_labels
, addpath_id
? 1 : 0,
3029 addpath_id
, pfx_buf
,
3031 zlog_debug("%s rcvd %s", peer
->host
,
3035 if (bgp_damp_update(ri
, rn
, afi
, safi
)
3036 != BGP_DAMP_SUPPRESSED
) {
3037 bgp_aggregate_increment(bgp
, p
, ri
, afi
,
3039 bgp_process(bgp
, rn
, afi
, safi
);
3041 } else /* Duplicate - odd */
3043 if (bgp_debug_update(peer
, p
, NULL
, 1)) {
3044 if (!peer
->rcvd_attr_printed
) {
3046 "%s rcvd UPDATE w/ attr: %s",
3048 peer
->rcvd_attr_str
);
3049 peer
->rcvd_attr_printed
= 1;
3052 bgp_debug_rdpfxpath2str(
3053 afi
, safi
, prd
, p
, label
,
3054 num_labels
, addpath_id
? 1 : 0,
3055 addpath_id
, pfx_buf
,
3058 "%s rcvd %s...duplicate ignored",
3059 peer
->host
, pfx_buf
);
3062 /* graceful restart STALE flag unset. */
3063 if (CHECK_FLAG(ri
->flags
, BGP_INFO_STALE
)) {
3064 bgp_info_unset_flag(rn
, ri
,
3066 bgp_process(bgp
, rn
, afi
, safi
);
3070 bgp_unlock_node(rn
);
3071 bgp_attr_unintern(&attr_new
);
3076 /* Withdraw/Announce before we fully processed the withdraw */
3077 if (CHECK_FLAG(ri
->flags
, BGP_INFO_REMOVED
)) {
3078 if (bgp_debug_update(peer
, p
, NULL
, 1)) {
3079 bgp_debug_rdpfxpath2str(
3080 afi
, safi
, prd
, p
, label
, num_labels
,
3081 addpath_id
? 1 : 0, addpath_id
, pfx_buf
,
3084 "%s rcvd %s, flapped quicker than processing",
3085 peer
->host
, pfx_buf
);
3088 bgp_info_restore(rn
, ri
);
3091 /* Received Logging. */
3092 if (bgp_debug_update(peer
, p
, NULL
, 1)) {
3093 bgp_debug_rdpfxpath2str(afi
, safi
, prd
, p
, label
,
3094 num_labels
, addpath_id
? 1 : 0,
3095 addpath_id
, pfx_buf
,
3097 zlog_debug("%s rcvd %s", peer
->host
, pfx_buf
);
3100 /* graceful restart STALE flag unset. */
3101 if (CHECK_FLAG(ri
->flags
, BGP_INFO_STALE
))
3102 bgp_info_unset_flag(rn
, ri
, BGP_INFO_STALE
);
3104 /* The attribute is changed. */
3105 bgp_info_set_flag(rn
, ri
, BGP_INFO_ATTR_CHANGED
);
3107 /* implicit withdraw, decrement aggregate and pcount here.
3108 * only if update is accepted, they'll increment below.
3110 bgp_aggregate_decrement(bgp
, p
, ri
, afi
, safi
);
3112 /* Update bgp route dampening information. */
3113 if (CHECK_FLAG(bgp
->af_flags
[afi
][safi
], BGP_CONFIG_DAMPENING
)
3114 && peer
->sort
== BGP_PEER_EBGP
) {
3115 /* This is implicit withdraw so we should update
3118 if (!CHECK_FLAG(ri
->flags
, BGP_INFO_HISTORY
))
3119 bgp_damp_withdraw(ri
, rn
, afi
, safi
, 1);
3122 if (safi
== SAFI_MPLS_VPN
) {
3123 struct bgp_node
*prn
= NULL
;
3124 struct bgp_table
*table
= NULL
;
3126 prn
= bgp_node_get(bgp
->rib
[afi
][safi
],
3127 (struct prefix
*)prd
);
3129 table
= (struct bgp_table
*)(prn
->info
);
3131 vnc_import_bgp_del_vnc_host_route_mode_resolve_nve(
3132 bgp
, prd
, table
, p
, ri
);
3134 bgp_unlock_node(prn
);
3136 if ((afi
== AFI_IP
|| afi
== AFI_IP6
)
3137 && (safi
== SAFI_UNICAST
)) {
3138 if (CHECK_FLAG(ri
->flags
, BGP_INFO_SELECTED
)) {
3140 * Implicit withdraw case.
3142 ++vnc_implicit_withdraw
;
3143 vnc_import_bgp_del_route(bgp
, p
, ri
);
3144 vnc_import_bgp_exterior_del_route(bgp
, p
, ri
);
3149 /* Special handling for EVPN update of an existing route. If the
3150 * extended community attribute has changed, we need to
3152 * the route using its existing extended community. It will be
3153 * subsequently processed for import with the new extended
3156 if (safi
== SAFI_EVPN
&& !same_attr
) {
3158 & ATTR_FLAG_BIT(BGP_ATTR_EXT_COMMUNITIES
))
3160 & ATTR_FLAG_BIT(BGP_ATTR_EXT_COMMUNITIES
))) {
3163 cmp
= ecommunity_cmp(ri
->attr
->ecommunity
,
3164 attr_new
->ecommunity
);
3166 if (bgp_debug_update(peer
, p
, NULL
, 1))
3168 "Change in EXT-COMM, existing %s new %s",
3170 ri
->attr
->ecommunity
),
3172 attr_new
->ecommunity
));
3173 bgp_evpn_unimport_route(bgp
, afi
, safi
,
3179 /* Update to new attribute. */
3180 bgp_attr_unintern(&ri
->attr
);
3181 ri
->attr
= attr_new
;
3183 /* Update MPLS label */
3184 if (has_valid_label
) {
3185 extra
= bgp_info_extra_get(ri
);
3186 memcpy(&extra
->label
, label
,
3187 num_labels
* sizeof(mpls_label_t
));
3188 extra
->num_labels
= num_labels
;
3189 if (!(afi
== AFI_L2VPN
&& safi
== SAFI_EVPN
))
3190 bgp_set_valid_label(&extra
->label
[0]);
3194 if ((afi
== AFI_IP
|| afi
== AFI_IP6
)
3195 && (safi
== SAFI_UNICAST
)) {
3196 if (vnc_implicit_withdraw
) {
3198 * Add back the route with its new attributes
3200 * The route is still selected, until the route
3202 * queued by bgp_process actually runs. We have
3204 * update to the VNC side immediately to avoid
3206 * configuration changes (e.g., route-map
3208 * trigger re-importation of the entire RIB.
3210 vnc_import_bgp_add_route(bgp
, p
, ri
);
3211 vnc_import_bgp_exterior_add_route(bgp
, p
, ri
);
3215 /* Update Overlay Index */
3216 if (afi
== AFI_L2VPN
) {
3217 overlay_index_update(
3218 ri
->attr
, evpn
== NULL
? NULL
: &evpn
->eth_s_id
,
3219 evpn
== NULL
? NULL
: &evpn
->gw_ip
);
3222 /* Update bgp route dampening information. */
3223 if (CHECK_FLAG(bgp
->af_flags
[afi
][safi
], BGP_CONFIG_DAMPENING
)
3224 && peer
->sort
== BGP_PEER_EBGP
) {
3225 /* Now we do normal update dampening. */
3226 ret
= bgp_damp_update(ri
, rn
, afi
, safi
);
3227 if (ret
== BGP_DAMP_SUPPRESSED
) {
3228 bgp_unlock_node(rn
);
3233 /* Nexthop reachability check - for unicast and
3234 * labeled-unicast.. */
3235 if ((afi
== AFI_IP
|| afi
== AFI_IP6
)
3236 && (safi
== SAFI_UNICAST
|| safi
== SAFI_LABELED_UNICAST
)) {
3237 if (peer
->sort
== BGP_PEER_EBGP
&& peer
->ttl
== 1
3238 && !CHECK_FLAG(peer
->flags
,
3239 PEER_FLAG_DISABLE_CONNECTED_CHECK
)
3241 bgp
, BGP_FLAG_DISABLE_NH_CONNECTED_CHK
))
3246 struct bgp
*bgp_nexthop
= bgp
;
3248 if (ri
->extra
&& ri
->extra
->bgp_orig
)
3249 bgp_nexthop
= ri
->extra
->bgp_orig
;
3251 if (bgp_find_or_add_nexthop(bgp
, bgp_nexthop
, afi
,
3252 ri
, NULL
, connected
)
3253 || CHECK_FLAG(peer
->flags
, PEER_FLAG_IS_RFAPI_HD
))
3254 bgp_info_set_flag(rn
, ri
, BGP_INFO_VALID
);
3256 if (BGP_DEBUG(nht
, NHT
)) {
3257 char buf1
[INET6_ADDRSTRLEN
];
3259 (const void *)&attr_new
3261 buf1
, INET6_ADDRSTRLEN
);
3262 zlog_debug("%s(%s): NH unresolved",
3263 __FUNCTION__
, buf1
);
3265 bgp_info_unset_flag(rn
, ri
, BGP_INFO_VALID
);
3268 bgp_info_set_flag(rn
, ri
, BGP_INFO_VALID
);
3271 if (safi
== SAFI_MPLS_VPN
) {
3272 struct bgp_node
*prn
= NULL
;
3273 struct bgp_table
*table
= NULL
;
3275 prn
= bgp_node_get(bgp
->rib
[afi
][safi
],
3276 (struct prefix
*)prd
);
3278 table
= (struct bgp_table
*)(prn
->info
);
3280 vnc_import_bgp_add_vnc_host_route_mode_resolve_nve(
3281 bgp
, prd
, table
, p
, ri
);
3283 bgp_unlock_node(prn
);
3287 /* If this is an EVPN route and some attribute has changed,
3289 * route for import. If the extended community has changed, we
3291 * have done the un-import earlier and the import would result
3293 * route getting injected into appropriate L2 VNIs. If it is
3295 * some other attribute change, the import will result in
3297 * the attributes for the route in the VNI(s).
3299 if (safi
== SAFI_EVPN
&& !same_attr
)
3300 bgp_evpn_import_route(bgp
, afi
, safi
, p
, ri
);
3302 /* Process change. */
3303 bgp_aggregate_increment(bgp
, p
, ri
, afi
, safi
);
3305 bgp_process(bgp
, rn
, afi
, safi
);
3306 bgp_unlock_node(rn
);
3308 if (SAFI_UNICAST
== safi
3309 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
3310 || bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
3312 vpn_leak_from_vrf_update(bgp_get_default(), bgp
, ri
);
3314 if ((SAFI_MPLS_VPN
== safi
)
3315 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
3317 vpn_leak_to_vrf_update(bgp
, ri
);
3321 if (SAFI_MPLS_VPN
== safi
) {
3322 mpls_label_t label_decoded
= decode_label(label
);
3324 rfapiProcessUpdate(peer
, NULL
, p
, prd
, attr
, afi
, safi
,
3325 type
, sub_type
, &label_decoded
);
3327 if (SAFI_ENCAP
== safi
) {
3328 rfapiProcessUpdate(peer
, NULL
, p
, prd
, attr
, afi
, safi
,
3329 type
, sub_type
, NULL
);
3334 } // End of implicit withdraw
3336 /* Received Logging. */
3337 if (bgp_debug_update(peer
, p
, NULL
, 1)) {
3338 if (!peer
->rcvd_attr_printed
) {
3339 zlog_debug("%s rcvd UPDATE w/ attr: %s", peer
->host
,
3340 peer
->rcvd_attr_str
);
3341 peer
->rcvd_attr_printed
= 1;
3344 bgp_debug_rdpfxpath2str(afi
, safi
, prd
, p
, label
, num_labels
,
3345 addpath_id
? 1 : 0, addpath_id
, pfx_buf
,
3347 zlog_debug("%s rcvd %s", peer
->host
, pfx_buf
);
3350 /* Make new BGP info. */
3351 new = info_make(type
, sub_type
, 0, peer
, attr_new
, rn
);
3353 /* Update MPLS label */
3354 if (has_valid_label
) {
3355 extra
= bgp_info_extra_get(new);
3356 memcpy(&extra
->label
, label
, num_labels
* sizeof(mpls_label_t
));
3357 extra
->num_labels
= num_labels
;
3358 if (!(afi
== AFI_L2VPN
&& safi
== SAFI_EVPN
))
3359 bgp_set_valid_label(&extra
->label
[0]);
3362 /* Update Overlay Index */
3363 if (afi
== AFI_L2VPN
) {
3364 overlay_index_update(new->attr
,
3365 evpn
== NULL
? NULL
: &evpn
->eth_s_id
,
3366 evpn
== NULL
? NULL
: &evpn
->gw_ip
);
3368 /* Nexthop reachability check. */
3369 if ((afi
== AFI_IP
|| afi
== AFI_IP6
)
3370 && (safi
== SAFI_UNICAST
|| safi
== SAFI_LABELED_UNICAST
)) {
3371 if (peer
->sort
== BGP_PEER_EBGP
&& peer
->ttl
== 1
3372 && !CHECK_FLAG(peer
->flags
,
3373 PEER_FLAG_DISABLE_CONNECTED_CHECK
)
3374 && !bgp_flag_check(bgp
, BGP_FLAG_DISABLE_NH_CONNECTED_CHK
))
3379 if (bgp_find_or_add_nexthop(bgp
, bgp
, afi
, new, NULL
, connected
)
3380 || CHECK_FLAG(peer
->flags
, PEER_FLAG_IS_RFAPI_HD
))
3381 bgp_info_set_flag(rn
, new, BGP_INFO_VALID
);
3383 if (BGP_DEBUG(nht
, NHT
)) {
3384 char buf1
[INET6_ADDRSTRLEN
];
3386 (const void *)&attr_new
->nexthop
,
3387 buf1
, INET6_ADDRSTRLEN
);
3388 zlog_debug("%s(%s): NH unresolved",
3389 __FUNCTION__
, buf1
);
3391 bgp_info_unset_flag(rn
, new, BGP_INFO_VALID
);
3394 bgp_info_set_flag(rn
, new, BGP_INFO_VALID
);
3397 new->addpath_rx_id
= addpath_id
;
3399 /* Increment prefix */
3400 bgp_aggregate_increment(bgp
, p
, new, afi
, safi
);
3402 /* Register new BGP information. */
3403 bgp_info_add(rn
, new);
3405 /* route_node_get lock */
3406 bgp_unlock_node(rn
);
3409 if (safi
== SAFI_MPLS_VPN
) {
3410 struct bgp_node
*prn
= NULL
;
3411 struct bgp_table
*table
= NULL
;
3413 prn
= bgp_node_get(bgp
->rib
[afi
][safi
], (struct prefix
*)prd
);
3415 table
= (struct bgp_table
*)(prn
->info
);
3417 vnc_import_bgp_add_vnc_host_route_mode_resolve_nve(
3418 bgp
, prd
, table
, p
, new);
3420 bgp_unlock_node(prn
);
3424 /* If maximum prefix count is configured and current prefix
3426 if (bgp_maximum_prefix_overflow(peer
, afi
, safi
, 0))
3429 /* If this is an EVPN route, process for import. */
3430 if (safi
== SAFI_EVPN
)
3431 bgp_evpn_import_route(bgp
, afi
, safi
, p
, new);
3433 /* Process change. */
3434 bgp_process(bgp
, rn
, afi
, safi
);
3436 if (SAFI_UNICAST
== safi
3437 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
3438 || bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
3439 vpn_leak_from_vrf_update(bgp_get_default(), bgp
, new);
3441 if ((SAFI_MPLS_VPN
== safi
)
3442 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
3444 vpn_leak_to_vrf_update(bgp
, new);
3447 if (SAFI_MPLS_VPN
== safi
) {
3448 mpls_label_t label_decoded
= decode_label(label
);
3450 rfapiProcessUpdate(peer
, NULL
, p
, prd
, attr
, afi
, safi
, type
,
3451 sub_type
, &label_decoded
);
3453 if (SAFI_ENCAP
== safi
) {
3454 rfapiProcessUpdate(peer
, NULL
, p
, prd
, attr
, afi
, safi
, type
,
3461 /* This BGP update is filtered. Log the reason then update BGP
3464 if (bgp_debug_update(peer
, p
, NULL
, 1)) {
3465 if (!peer
->rcvd_attr_printed
) {
3466 zlog_debug("%s rcvd UPDATE w/ attr: %s", peer
->host
,
3467 peer
->rcvd_attr_str
);
3468 peer
->rcvd_attr_printed
= 1;
3471 bgp_debug_rdpfxpath2str(afi
, safi
, prd
, p
, label
, num_labels
,
3472 addpath_id
? 1 : 0, addpath_id
, pfx_buf
,
3474 zlog_debug("%s rcvd UPDATE about %s -- DENIED due to: %s",
3475 peer
->host
, pfx_buf
, reason
);
3479 /* If this is an EVPN route, un-import it as it is now filtered.
3481 if (safi
== SAFI_EVPN
)
3482 bgp_evpn_unimport_route(bgp
, afi
, safi
, p
, ri
);
3484 if (SAFI_UNICAST
== safi
3485 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
3486 || bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
3488 vpn_leak_from_vrf_withdraw(bgp_get_default(), bgp
, ri
);
3490 if ((SAFI_MPLS_VPN
== safi
)
3491 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
3493 vpn_leak_to_vrf_withdraw(bgp
, ri
);
3496 bgp_rib_remove(rn
, ri
, peer
, afi
, safi
);
3499 bgp_unlock_node(rn
);
3503 * Filtered update is treated as an implicit withdrawal (see
3505 * a few lines above)
3507 if ((SAFI_MPLS_VPN
== safi
) || (SAFI_ENCAP
== safi
)) {
3508 rfapiProcessWithdraw(peer
, NULL
, p
, prd
, NULL
, afi
, safi
, type
,
3516 int bgp_withdraw(struct peer
*peer
, struct prefix
*p
, uint32_t addpath_id
,
3517 struct attr
*attr
, afi_t afi
, safi_t safi
, int type
,
3518 int sub_type
, struct prefix_rd
*prd
, mpls_label_t
*label
,
3519 uint32_t num_labels
, struct bgp_route_evpn
*evpn
)
3522 char pfx_buf
[BGP_PRD_PATH_STRLEN
];
3523 struct bgp_node
*rn
;
3524 struct bgp_info
*ri
;
3527 if ((SAFI_MPLS_VPN
== safi
) || (SAFI_ENCAP
== safi
)) {
3528 rfapiProcessWithdraw(peer
, NULL
, p
, prd
, NULL
, afi
, safi
, type
,
3536 rn
= bgp_afi_node_get(bgp
->rib
[afi
][safi
], afi
, safi
, p
, prd
);
3538 /* If peer is soft reconfiguration enabled. Record input packet for
3539 * further calculation.
3541 * Cisco IOS 12.4(24)T4 on session establishment sends withdraws for all
3542 * routes that are filtered. This tanks out Quagga RS pretty badly due
3544 * the iteration over all RS clients.
3545 * Since we need to remove the entry from adj_in anyway, do that first
3547 * if there was no entry, we don't need to do anything more.
3549 if (CHECK_FLAG(peer
->af_flags
[afi
][safi
], PEER_FLAG_SOFT_RECONFIG
)
3550 && peer
!= bgp
->peer_self
)
3551 if (!bgp_adj_in_unset(rn
, peer
, addpath_id
)) {
3552 if (bgp_debug_update(peer
, p
, NULL
, 1)) {
3553 bgp_debug_rdpfxpath2str(
3554 afi
, safi
, prd
, p
, label
, num_labels
,
3555 addpath_id
? 1 : 0, addpath_id
, pfx_buf
,
3558 "%s withdrawing route %s not in adj-in",
3559 peer
->host
, pfx_buf
);
3561 bgp_unlock_node(rn
);
3565 /* Lookup withdrawn route. */
3566 for (ri
= rn
->info
; ri
; ri
= ri
->next
)
3567 if (ri
->peer
== peer
&& ri
->type
== type
3568 && ri
->sub_type
== sub_type
3569 && ri
->addpath_rx_id
== addpath_id
)
3573 if (bgp_debug_update(peer
, p
, NULL
, 1)) {
3574 bgp_debug_rdpfxpath2str(afi
, safi
, prd
, p
, label
, num_labels
,
3575 addpath_id
? 1 : 0, addpath_id
, pfx_buf
,
3577 zlog_debug("%s rcvd UPDATE about %s -- withdrawn", peer
->host
,
3581 /* Withdraw specified route from routing table. */
3582 if (ri
&& !CHECK_FLAG(ri
->flags
, BGP_INFO_HISTORY
)) {
3583 bgp_rib_withdraw(rn
, ri
, peer
, afi
, safi
, prd
);
3584 if (SAFI_UNICAST
== safi
3585 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
3586 || bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
3587 vpn_leak_from_vrf_withdraw(bgp_get_default(), bgp
, ri
);
3589 if ((SAFI_MPLS_VPN
== safi
)
3590 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
3592 vpn_leak_to_vrf_withdraw(bgp
, ri
);
3594 } else 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 Can't find the route %s", peer
->host
, pfx_buf
);
3601 /* Unlock bgp_node_get() lock. */
3602 bgp_unlock_node(rn
);
3607 void bgp_default_originate(struct peer
*peer
, afi_t afi
, safi_t safi
,
3610 struct update_subgroup
*subgrp
;
3611 subgrp
= peer_subgroup(peer
, afi
, safi
);
3612 subgroup_default_originate(subgrp
, withdraw
);
3617 * bgp_stop_announce_route_timer
3619 void bgp_stop_announce_route_timer(struct peer_af
*paf
)
3621 if (!paf
->t_announce_route
)
3624 THREAD_TIMER_OFF(paf
->t_announce_route
);
3628 * bgp_announce_route_timer_expired
3630 * Callback that is invoked when the route announcement timer for a
3633 static int bgp_announce_route_timer_expired(struct thread
*t
)
3635 struct peer_af
*paf
;
3638 paf
= THREAD_ARG(t
);
3641 if (peer
->status
!= Established
)
3644 if (!peer
->afc_nego
[paf
->afi
][paf
->safi
])
3647 peer_af_announce_route(paf
, 1);
3652 * bgp_announce_route
3654 * *Triggers* announcement of routes of a given AFI/SAFI to a peer.
3656 void bgp_announce_route(struct peer
*peer
, afi_t afi
, safi_t safi
)
3658 struct peer_af
*paf
;
3659 struct update_subgroup
*subgrp
;
3661 paf
= peer_af_find(peer
, afi
, safi
);
3664 subgrp
= PAF_SUBGRP(paf
);
3667 * Ignore if subgroup doesn't exist (implies AF is not negotiated)
3668 * or a refresh has already been triggered.
3670 if (!subgrp
|| paf
->t_announce_route
)
3674 * Start a timer to stagger/delay the announce. This serves
3675 * two purposes - announcement can potentially be combined for
3676 * multiple peers and the announcement doesn't happen in the
3679 thread_add_timer_msec(bm
->master
, bgp_announce_route_timer_expired
, paf
,
3680 (subgrp
->peer_count
== 1)
3681 ? BGP_ANNOUNCE_ROUTE_SHORT_DELAY_MS
3682 : BGP_ANNOUNCE_ROUTE_DELAY_MS
,
3683 &paf
->t_announce_route
);
3687 * Announce routes from all AF tables to a peer.
3689 * This should ONLY be called when there is a need to refresh the
3690 * routes to the peer based on a policy change for this peer alone
3691 * or a route refresh request received from the peer.
3692 * The operation will result in splitting the peer from its existing
3693 * subgroups and putting it in new subgroups.
3695 void bgp_announce_route_all(struct peer
*peer
)
3700 FOREACH_AFI_SAFI (afi
, safi
)
3701 bgp_announce_route(peer
, afi
, safi
);
3704 static void bgp_soft_reconfig_table(struct peer
*peer
, afi_t afi
, safi_t safi
,
3705 struct bgp_table
*table
,
3706 struct prefix_rd
*prd
)
3709 struct bgp_node
*rn
;
3710 struct bgp_adj_in
*ain
;
3713 table
= peer
->bgp
->rib
[afi
][safi
];
3715 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
))
3716 for (ain
= rn
->adj_in
; ain
; ain
= ain
->next
) {
3717 if (ain
->peer
!= peer
)
3720 struct bgp_info
*ri
= rn
->info
;
3721 uint32_t num_labels
= 0;
3722 mpls_label_t
*label_pnt
= NULL
;
3724 if (ri
&& ri
->extra
)
3725 num_labels
= ri
->extra
->num_labels
;
3727 label_pnt
= &ri
->extra
->label
[0];
3729 ret
= bgp_update(peer
, &rn
->p
, ain
->addpath_rx_id
,
3730 ain
->attr
, afi
, safi
, ZEBRA_ROUTE_BGP
,
3731 BGP_ROUTE_NORMAL
, prd
, label_pnt
,
3732 num_labels
, 1, NULL
);
3735 bgp_unlock_node(rn
);
3741 void bgp_soft_reconfig_in(struct peer
*peer
, afi_t afi
, safi_t safi
)
3743 struct bgp_node
*rn
;
3744 struct bgp_table
*table
;
3746 if (peer
->status
!= Established
)
3749 if ((safi
!= SAFI_MPLS_VPN
) && (safi
!= SAFI_ENCAP
)
3750 && (safi
!= SAFI_EVPN
))
3751 bgp_soft_reconfig_table(peer
, afi
, safi
, NULL
, NULL
);
3753 for (rn
= bgp_table_top(peer
->bgp
->rib
[afi
][safi
]); rn
;
3754 rn
= bgp_route_next(rn
))
3755 if ((table
= rn
->info
) != NULL
) {
3756 struct prefix_rd prd
;
3757 prd
.family
= AF_UNSPEC
;
3759 memcpy(&prd
.val
, rn
->p
.u
.val
, 8);
3761 bgp_soft_reconfig_table(peer
, afi
, safi
, table
,
3767 struct bgp_clear_node_queue
{
3768 struct bgp_node
*rn
;
3771 static wq_item_status
bgp_clear_route_node(struct work_queue
*wq
, void *data
)
3773 struct bgp_clear_node_queue
*cnq
= data
;
3774 struct bgp_node
*rn
= cnq
->rn
;
3775 struct peer
*peer
= wq
->spec
.data
;
3776 struct bgp_info
*ri
;
3778 afi_t afi
= bgp_node_table(rn
)->afi
;
3779 safi_t safi
= bgp_node_table(rn
)->safi
;
3784 /* It is possible that we have multiple paths for a prefix from a peer
3785 * if that peer is using AddPath.
3787 for (ri
= rn
->info
; ri
; ri
= ri
->next
) {
3788 if (ri
->peer
!= peer
)
3791 /* graceful restart STALE flag set. */
3792 if (CHECK_FLAG(peer
->sflags
, PEER_STATUS_NSF_WAIT
)
3793 && peer
->nsf
[afi
][safi
]
3794 && !CHECK_FLAG(ri
->flags
, BGP_INFO_STALE
)
3795 && !CHECK_FLAG(ri
->flags
, BGP_INFO_UNUSEABLE
))
3796 bgp_info_set_flag(rn
, ri
, BGP_INFO_STALE
);
3798 /* If this is an EVPN route, process for
3800 if (safi
== SAFI_EVPN
)
3801 bgp_evpn_unimport_route(bgp
, afi
, safi
,
3803 /* Handle withdraw for VRF route-leaking and L3VPN */
3804 if (SAFI_UNICAST
== safi
3805 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
||
3806 bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
3807 vpn_leak_from_vrf_withdraw(bgp_get_default(),
3810 if (SAFI_MPLS_VPN
== safi
&&
3811 bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
) {
3812 vpn_leak_to_vrf_withdraw(bgp
, ri
);
3815 bgp_rib_remove(rn
, ri
, peer
, afi
, safi
);
3821 static void bgp_clear_node_queue_del(struct work_queue
*wq
, void *data
)
3823 struct bgp_clear_node_queue
*cnq
= data
;
3824 struct bgp_node
*rn
= cnq
->rn
;
3825 struct bgp_table
*table
= bgp_node_table(rn
);
3827 bgp_unlock_node(rn
);
3828 bgp_table_unlock(table
);
3829 XFREE(MTYPE_BGP_CLEAR_NODE_QUEUE
, cnq
);
3832 static void bgp_clear_node_complete(struct work_queue
*wq
)
3834 struct peer
*peer
= wq
->spec
.data
;
3836 /* Tickle FSM to start moving again */
3837 BGP_EVENT_ADD(peer
, Clearing_Completed
);
3839 peer_unlock(peer
); /* bgp_clear_route */
3842 static void bgp_clear_node_queue_init(struct peer
*peer
)
3844 char wname
[sizeof("clear xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx")];
3846 snprintf(wname
, sizeof(wname
), "clear %s", peer
->host
);
3847 #undef CLEAR_QUEUE_NAME_LEN
3849 peer
->clear_node_queue
= work_queue_new(bm
->master
, wname
);
3850 peer
->clear_node_queue
->spec
.hold
= 10;
3851 peer
->clear_node_queue
->spec
.workfunc
= &bgp_clear_route_node
;
3852 peer
->clear_node_queue
->spec
.del_item_data
= &bgp_clear_node_queue_del
;
3853 peer
->clear_node_queue
->spec
.completion_func
= &bgp_clear_node_complete
;
3854 peer
->clear_node_queue
->spec
.max_retries
= 0;
3856 /* we only 'lock' this peer reference when the queue is actually active
3858 peer
->clear_node_queue
->spec
.data
= peer
;
3861 static void bgp_clear_route_table(struct peer
*peer
, afi_t afi
, safi_t safi
,
3862 struct bgp_table
*table
)
3864 struct bgp_node
*rn
;
3865 int force
= bm
->process_main_queue
? 0 : 1;
3868 table
= peer
->bgp
->rib
[afi
][safi
];
3870 /* If still no table => afi/safi isn't configured at all or smth. */
3874 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
)) {
3875 struct bgp_info
*ri
, *next
;
3876 struct bgp_adj_in
*ain
;
3877 struct bgp_adj_in
*ain_next
;
3879 /* XXX:TODO: This is suboptimal, every non-empty route_node is
3880 * queued for every clearing peer, regardless of whether it is
3881 * relevant to the peer at hand.
3883 * Overview: There are 3 different indices which need to be
3884 * scrubbed, potentially, when a peer is removed:
3886 * 1 peer's routes visible via the RIB (ie accepted routes)
3887 * 2 peer's routes visible by the (optional) peer's adj-in index
3888 * 3 other routes visible by the peer's adj-out index
3890 * 3 there is no hurry in scrubbing, once the struct peer is
3891 * removed from bgp->peer, we could just GC such deleted peer's
3892 * adj-outs at our leisure.
3894 * 1 and 2 must be 'scrubbed' in some way, at least made
3895 * invisible via RIB index before peer session is allowed to be
3896 * brought back up. So one needs to know when such a 'search' is
3901 * - there'd be a single global queue or a single RIB walker
3902 * - rather than tracking which route_nodes still need to be
3903 * examined on a peer basis, we'd track which peers still
3906 * Given that our per-peer prefix-counts now should be reliable,
3907 * this may actually be achievable. It doesn't seem to be a huge
3908 * problem at this time,
3910 * It is possible that we have multiple paths for a prefix from
3912 * if that peer is using AddPath.
3916 ain_next
= ain
->next
;
3918 if (ain
->peer
== peer
) {
3919 bgp_adj_in_remove(rn
, ain
);
3920 bgp_unlock_node(rn
);
3926 for (ri
= rn
->info
; ri
; ri
= next
) {
3928 if (ri
->peer
!= peer
)
3932 bgp_info_reap(rn
, ri
);
3934 struct bgp_clear_node_queue
*cnq
;
3936 /* both unlocked in bgp_clear_node_queue_del */
3937 bgp_table_lock(bgp_node_table(rn
));
3940 MTYPE_BGP_CLEAR_NODE_QUEUE
,
3941 sizeof(struct bgp_clear_node_queue
));
3943 work_queue_add(peer
->clear_node_queue
, cnq
);
3951 void bgp_clear_route(struct peer
*peer
, afi_t afi
, safi_t safi
)
3953 struct bgp_node
*rn
;
3954 struct bgp_table
*table
;
3956 if (peer
->clear_node_queue
== NULL
)
3957 bgp_clear_node_queue_init(peer
);
3959 /* bgp_fsm.c keeps sessions in state Clearing, not transitioning to
3960 * Idle until it receives a Clearing_Completed event. This protects
3961 * against peers which flap faster than we can we clear, which could
3964 * a) race with routes from the new session being installed before
3965 * clear_route_node visits the node (to delete the route of that
3967 * b) resource exhaustion, clear_route_node likely leads to an entry
3968 * on the process_main queue. Fast-flapping could cause that queue
3972 /* lock peer in assumption that clear-node-queue will get nodes; if so,
3973 * the unlock will happen upon work-queue completion; other wise, the
3974 * unlock happens at the end of this function.
3976 if (!peer
->clear_node_queue
->thread
)
3979 if (safi
!= SAFI_MPLS_VPN
&& safi
!= SAFI_ENCAP
&& safi
!= SAFI_EVPN
)
3980 bgp_clear_route_table(peer
, afi
, safi
, NULL
);
3982 for (rn
= bgp_table_top(peer
->bgp
->rib
[afi
][safi
]); rn
;
3983 rn
= bgp_route_next(rn
))
3984 if ((table
= rn
->info
) != NULL
)
3985 bgp_clear_route_table(peer
, afi
, safi
, table
);
3987 /* unlock if no nodes got added to the clear-node-queue. */
3988 if (!peer
->clear_node_queue
->thread
)
3992 void bgp_clear_route_all(struct peer
*peer
)
3997 FOREACH_AFI_SAFI (afi
, safi
)
3998 bgp_clear_route(peer
, afi
, safi
);
4001 rfapiProcessPeerDown(peer
);
4005 void bgp_clear_adj_in(struct peer
*peer
, afi_t afi
, safi_t safi
)
4007 struct bgp_table
*table
;
4008 struct bgp_node
*rn
;
4009 struct bgp_adj_in
*ain
;
4010 struct bgp_adj_in
*ain_next
;
4012 table
= peer
->bgp
->rib
[afi
][safi
];
4014 /* It is possible that we have multiple paths for a prefix from a peer
4015 * if that peer is using AddPath.
4017 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
)) {
4021 ain_next
= ain
->next
;
4023 if (ain
->peer
== peer
) {
4024 bgp_adj_in_remove(rn
, ain
);
4025 bgp_unlock_node(rn
);
4033 void bgp_clear_stale_route(struct peer
*peer
, afi_t afi
, safi_t safi
)
4035 struct bgp_node
*rn
;
4036 struct bgp_info
*ri
;
4037 struct bgp_table
*table
;
4039 if (safi
== SAFI_MPLS_VPN
) {
4040 for (rn
= bgp_table_top(peer
->bgp
->rib
[afi
][safi
]); rn
;
4041 rn
= bgp_route_next(rn
)) {
4042 struct bgp_node
*rm
;
4044 /* look for neighbor in tables */
4045 if ((table
= rn
->info
) == NULL
)
4048 for (rm
= bgp_table_top(table
); rm
;
4049 rm
= bgp_route_next(rm
))
4050 for (ri
= rm
->info
; ri
; ri
= ri
->next
) {
4051 if (ri
->peer
!= peer
)
4053 if (!CHECK_FLAG(ri
->flags
,
4057 bgp_rib_remove(rm
, ri
, peer
, afi
, safi
);
4062 for (rn
= bgp_table_top(peer
->bgp
->rib
[afi
][safi
]); rn
;
4063 rn
= bgp_route_next(rn
))
4064 for (ri
= rn
->info
; ri
; ri
= ri
->next
) {
4065 if (ri
->peer
!= peer
)
4067 if (!CHECK_FLAG(ri
->flags
, BGP_INFO_STALE
))
4069 bgp_rib_remove(rn
, ri
, peer
, afi
, safi
);
4075 static void bgp_cleanup_table(struct bgp
*bgp
, struct bgp_table
*table
,
4078 struct bgp_node
*rn
;
4079 struct bgp_info
*ri
;
4080 struct bgp_info
*next
;
4082 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
))
4083 for (ri
= rn
->info
; ri
; ri
= next
) {
4085 if (CHECK_FLAG(ri
->flags
, BGP_INFO_SELECTED
)
4086 && ri
->type
== ZEBRA_ROUTE_BGP
4087 && (ri
->sub_type
== BGP_ROUTE_NORMAL
4088 || ri
->sub_type
== BGP_ROUTE_AGGREGATE
4089 || ri
->sub_type
== BGP_ROUTE_IMPORTED
)) {
4091 if (bgp_fibupd_safi(safi
))
4092 bgp_zebra_withdraw(&rn
->p
, ri
,
4094 bgp_info_reap(rn
, ri
);
4099 /* Delete all kernel routes. */
4100 void bgp_cleanup_routes(struct bgp
*bgp
)
4103 struct bgp_node
*rn
;
4105 for (afi
= AFI_IP
; afi
< AFI_MAX
; ++afi
) {
4106 if (afi
== AFI_L2VPN
)
4108 bgp_cleanup_table(bgp
, bgp
->rib
[afi
][SAFI_UNICAST
],
4111 * VPN and ENCAP and EVPN tables are two-level (RD is top level)
4113 if (afi
!= AFI_L2VPN
) {
4115 safi
= SAFI_MPLS_VPN
;
4116 for (rn
= bgp_table_top(bgp
->rib
[afi
][safi
]); rn
;
4117 rn
= bgp_route_next(rn
)) {
4119 bgp_cleanup_table(bgp
,
4120 (struct bgp_table
*)(rn
->info
),
4122 bgp_table_finish((struct bgp_table
**)&(
4125 bgp_unlock_node(rn
);
4129 for (rn
= bgp_table_top(bgp
->rib
[afi
][safi
]); rn
;
4130 rn
= bgp_route_next(rn
)) {
4132 bgp_cleanup_table(bgp
,
4133 (struct bgp_table
*)(rn
->info
),
4135 bgp_table_finish((struct bgp_table
**)&(
4138 bgp_unlock_node(rn
);
4143 for (rn
= bgp_table_top(bgp
->rib
[AFI_L2VPN
][SAFI_EVPN
]); rn
;
4144 rn
= bgp_route_next(rn
)) {
4146 bgp_cleanup_table(bgp
,
4147 (struct bgp_table
*)(rn
->info
),
4149 bgp_table_finish((struct bgp_table
**)&(rn
->info
));
4151 bgp_unlock_node(rn
);
4156 void bgp_reset(void)
4159 bgp_zclient_reset();
4160 access_list_reset();
4161 prefix_list_reset();
4164 static int bgp_addpath_encode_rx(struct peer
*peer
, afi_t afi
, safi_t safi
)
4166 return (CHECK_FLAG(peer
->af_cap
[afi
][safi
], PEER_CAP_ADDPATH_AF_RX_ADV
)
4167 && CHECK_FLAG(peer
->af_cap
[afi
][safi
],
4168 PEER_CAP_ADDPATH_AF_TX_RCV
));
4171 /* Parse NLRI stream. Withdraw NLRI is recognized by NULL attr
4173 int bgp_nlri_parse_ip(struct peer
*peer
, struct attr
*attr
,
4174 struct bgp_nlri
*packet
)
4183 int addpath_encoded
;
4184 uint32_t addpath_id
;
4187 lim
= pnt
+ packet
->length
;
4189 safi
= packet
->safi
;
4191 addpath_encoded
= bgp_addpath_encode_rx(peer
, afi
, safi
);
4193 /* RFC4771 6.3 The NLRI field in the UPDATE message is checked for
4194 syntactic validity. If the field is syntactically incorrect,
4195 then the Error Subcode is set to Invalid Network Field. */
4196 for (; pnt
< lim
; pnt
+= psize
) {
4197 /* Clear prefix structure. */
4198 memset(&p
, 0, sizeof(struct prefix
));
4200 if (addpath_encoded
) {
4202 /* When packet overflow occurs return immediately. */
4203 if (pnt
+ BGP_ADDPATH_ID_LEN
> lim
)
4206 addpath_id
= ntohl(*((uint32_t *)pnt
));
4207 pnt
+= BGP_ADDPATH_ID_LEN
;
4210 /* Fetch prefix length. */
4211 p
.prefixlen
= *pnt
++;
4212 /* afi/safi validity already verified by caller,
4213 * bgp_update_receive */
4214 p
.family
= afi2family(afi
);
4216 /* Prefix length check. */
4217 if (p
.prefixlen
> prefix_blen(&p
) * 8) {
4220 "%s [Error] Update packet error (wrong prefix length %d for afi %u)",
4221 peer
->host
, p
.prefixlen
, packet
->afi
);
4225 /* Packet size overflow check. */
4226 psize
= PSIZE(p
.prefixlen
);
4228 /* When packet overflow occur return immediately. */
4229 if (pnt
+ psize
> lim
) {
4232 "%s [Error] Update packet error (prefix length %d overflows packet)",
4233 peer
->host
, p
.prefixlen
);
4237 /* Defensive coding, double-check the psize fits in a struct
4239 if (psize
> (ssize_t
)sizeof(p
.u
)) {
4242 "%s [Error] Update packet error (prefix length %d too large for prefix storage %zu)",
4243 peer
->host
, p
.prefixlen
, sizeof(p
.u
));
4247 /* Fetch prefix from NLRI packet. */
4248 memcpy(p
.u
.val
, pnt
, psize
);
4250 /* Check address. */
4251 if (afi
== AFI_IP
&& safi
== SAFI_UNICAST
) {
4252 if (IN_CLASSD(ntohl(p
.u
.prefix4
.s_addr
))) {
4253 /* From RFC4271 Section 6.3:
4255 * If a prefix in the NLRI field is semantically
4257 * (e.g., an unexpected multicast IP address),
4259 * be logged locally, and the prefix SHOULD be
4264 "%s: IPv4 unicast NLRI is multicast address %s, ignoring",
4265 peer
->host
, inet_ntoa(p
.u
.prefix4
));
4270 /* Check address. */
4271 if (afi
== AFI_IP6
&& safi
== SAFI_UNICAST
) {
4272 if (IN6_IS_ADDR_LINKLOCAL(&p
.u
.prefix6
)) {
4277 "%s: IPv6 unicast NLRI is link-local address %s, ignoring",
4279 inet_ntop(AF_INET6
, &p
.u
.prefix6
, buf
,
4284 if (IN6_IS_ADDR_MULTICAST(&p
.u
.prefix6
)) {
4289 "%s: IPv6 unicast NLRI is multicast address %s, ignoring",
4291 inet_ntop(AF_INET6
, &p
.u
.prefix6
, buf
,
4298 /* Normal process. */
4300 ret
= bgp_update(peer
, &p
, addpath_id
, attr
, afi
, safi
,
4301 ZEBRA_ROUTE_BGP
, BGP_ROUTE_NORMAL
,
4302 NULL
, NULL
, 0, 0, NULL
);
4304 ret
= bgp_withdraw(peer
, &p
, addpath_id
, attr
, afi
,
4305 safi
, ZEBRA_ROUTE_BGP
,
4306 BGP_ROUTE_NORMAL
, NULL
, NULL
, 0,
4309 /* Address family configuration mismatch or maximum-prefix count
4315 /* Packet length consistency check. */
4319 "%s [Error] Update packet error (prefix length mismatch with total length)",
4327 static struct bgp_static
*bgp_static_new(void)
4329 return XCALLOC(MTYPE_BGP_STATIC
, sizeof(struct bgp_static
));
4332 static void bgp_static_free(struct bgp_static
*bgp_static
)
4334 if (bgp_static
->rmap
.name
)
4335 XFREE(MTYPE_ROUTE_MAP_NAME
, bgp_static
->rmap
.name
);
4336 if (bgp_static
->eth_s_id
)
4337 XFREE(MTYPE_ATTR
, bgp_static
->eth_s_id
);
4338 XFREE(MTYPE_BGP_STATIC
, bgp_static
);
4341 void bgp_static_update(struct bgp
*bgp
, struct prefix
*p
,
4342 struct bgp_static
*bgp_static
, afi_t afi
, safi_t safi
)
4344 struct bgp_node
*rn
;
4345 struct bgp_info
*ri
;
4346 struct bgp_info
*new;
4347 struct bgp_info info
;
4349 struct attr
*attr_new
;
4352 int vnc_implicit_withdraw
= 0;
4359 rn
= bgp_afi_node_get(bgp
->rib
[afi
][safi
], afi
, safi
, p
, NULL
);
4361 bgp_attr_default_set(&attr
, BGP_ORIGIN_IGP
);
4363 attr
.nexthop
= bgp_static
->igpnexthop
;
4364 attr
.med
= bgp_static
->igpmetric
;
4365 attr
.flag
|= ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
);
4367 if (bgp_static
->atomic
)
4368 attr
.flag
|= ATTR_FLAG_BIT(BGP_ATTR_ATOMIC_AGGREGATE
);
4370 /* Store label index, if required. */
4371 if (bgp_static
->label_index
!= BGP_INVALID_LABEL_INDEX
) {
4372 attr
.label_index
= bgp_static
->label_index
;
4373 attr
.flag
|= ATTR_FLAG_BIT(BGP_ATTR_PREFIX_SID
);
4376 /* Apply route-map. */
4377 if (bgp_static
->rmap
.name
) {
4378 struct attr attr_tmp
= attr
;
4380 memset(&info
, 0, sizeof(struct bgp_info
));
4381 info
.peer
= bgp
->peer_self
;
4382 info
.attr
= &attr_tmp
;
4384 SET_FLAG(bgp
->peer_self
->rmap_type
, PEER_RMAP_TYPE_NETWORK
);
4386 ret
= route_map_apply(bgp_static
->rmap
.map
, p
, RMAP_BGP
, &info
);
4388 bgp
->peer_self
->rmap_type
= 0;
4390 if (ret
== RMAP_DENYMATCH
) {
4391 /* Free uninterned attribute. */
4392 bgp_attr_flush(&attr_tmp
);
4394 /* Unintern original. */
4395 aspath_unintern(&attr
.aspath
);
4396 bgp_static_withdraw(bgp
, p
, afi
, safi
);
4400 if (bgp_flag_check(bgp
, BGP_FLAG_GRACEFUL_SHUTDOWN
))
4401 bgp_attr_add_gshut_community(&attr_tmp
);
4403 attr_new
= bgp_attr_intern(&attr_tmp
);
4406 if (bgp_flag_check(bgp
, BGP_FLAG_GRACEFUL_SHUTDOWN
))
4407 bgp_attr_add_gshut_community(&attr
);
4409 attr_new
= bgp_attr_intern(&attr
);
4412 for (ri
= rn
->info
; ri
; ri
= ri
->next
)
4413 if (ri
->peer
== bgp
->peer_self
&& ri
->type
== ZEBRA_ROUTE_BGP
4414 && ri
->sub_type
== BGP_ROUTE_STATIC
)
4418 if (attrhash_cmp(ri
->attr
, attr_new
)
4419 && !CHECK_FLAG(ri
->flags
, BGP_INFO_REMOVED
)
4420 && !bgp_flag_check(bgp
, BGP_FLAG_FORCE_STATIC_PROCESS
)) {
4421 bgp_unlock_node(rn
);
4422 bgp_attr_unintern(&attr_new
);
4423 aspath_unintern(&attr
.aspath
);
4426 /* The attribute is changed. */
4427 bgp_info_set_flag(rn
, ri
, BGP_INFO_ATTR_CHANGED
);
4429 /* Rewrite BGP route information. */
4430 if (CHECK_FLAG(ri
->flags
, BGP_INFO_REMOVED
))
4431 bgp_info_restore(rn
, ri
);
4433 bgp_aggregate_decrement(bgp
, p
, ri
, afi
, safi
);
4435 if ((afi
== AFI_IP
|| afi
== AFI_IP6
)
4436 && (safi
== SAFI_UNICAST
)) {
4437 if (CHECK_FLAG(ri
->flags
, BGP_INFO_SELECTED
)) {
4439 * Implicit withdraw case.
4440 * We have to do this before ri is
4443 ++vnc_implicit_withdraw
;
4444 vnc_import_bgp_del_route(bgp
, p
, ri
);
4445 vnc_import_bgp_exterior_del_route(
4450 bgp_attr_unintern(&ri
->attr
);
4451 ri
->attr
= attr_new
;
4452 ri
->uptime
= bgp_clock();
4454 if ((afi
== AFI_IP
|| afi
== AFI_IP6
)
4455 && (safi
== SAFI_UNICAST
)) {
4456 if (vnc_implicit_withdraw
) {
4457 vnc_import_bgp_add_route(bgp
, p
, ri
);
4458 vnc_import_bgp_exterior_add_route(
4464 /* Nexthop reachability check. */
4465 if (bgp_flag_check(bgp
, BGP_FLAG_IMPORT_CHECK
)
4466 && (safi
== SAFI_UNICAST
4467 || safi
== SAFI_LABELED_UNICAST
)) {
4469 struct bgp
*bgp_nexthop
= bgp
;
4471 if (ri
->extra
&& ri
->extra
->bgp_orig
)
4472 bgp_nexthop
= ri
->extra
->bgp_orig
;
4474 if (bgp_find_or_add_nexthop(bgp
, bgp_nexthop
,
4476 bgp_info_set_flag(rn
, ri
,
4479 if (BGP_DEBUG(nht
, NHT
)) {
4480 char buf1
[INET6_ADDRSTRLEN
];
4481 inet_ntop(p
->family
,
4485 "%s(%s): Route not in table, not advertising",
4486 __FUNCTION__
, buf1
);
4488 bgp_info_unset_flag(rn
, ri
,
4492 /* Delete the NHT structure if any, if we're
4494 * enabling/disabling import check. We
4495 * deregister the route
4496 * from NHT to avoid overloading NHT and the
4497 * process interaction
4499 bgp_unlink_nexthop(ri
);
4500 bgp_info_set_flag(rn
, ri
, BGP_INFO_VALID
);
4502 /* Process change. */
4503 bgp_aggregate_increment(bgp
, p
, ri
, afi
, safi
);
4504 bgp_process(bgp
, rn
, afi
, safi
);
4506 if (SAFI_UNICAST
== safi
4507 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
4509 == BGP_INSTANCE_TYPE_DEFAULT
)) {
4510 vpn_leak_from_vrf_update(bgp_get_default(), bgp
,
4514 bgp_unlock_node(rn
);
4515 aspath_unintern(&attr
.aspath
);
4520 /* Make new BGP info. */
4521 new = info_make(ZEBRA_ROUTE_BGP
, BGP_ROUTE_STATIC
, 0, bgp
->peer_self
,
4523 /* Nexthop reachability check. */
4524 if (bgp_flag_check(bgp
, BGP_FLAG_IMPORT_CHECK
)
4525 && (safi
== SAFI_UNICAST
|| safi
== SAFI_LABELED_UNICAST
)) {
4526 if (bgp_find_or_add_nexthop(bgp
, bgp
, afi
, new, NULL
, 0))
4527 bgp_info_set_flag(rn
, new, BGP_INFO_VALID
);
4529 if (BGP_DEBUG(nht
, NHT
)) {
4530 char buf1
[INET6_ADDRSTRLEN
];
4531 inet_ntop(p
->family
, &p
->u
.prefix
, buf1
,
4534 "%s(%s): Route not in table, not advertising",
4535 __FUNCTION__
, buf1
);
4537 bgp_info_unset_flag(rn
, new, BGP_INFO_VALID
);
4540 /* Delete the NHT structure if any, if we're toggling between
4541 * enabling/disabling import check. We deregister the route
4542 * from NHT to avoid overloading NHT and the process interaction
4544 bgp_unlink_nexthop(new);
4546 bgp_info_set_flag(rn
, new, BGP_INFO_VALID
);
4549 /* Aggregate address increment. */
4550 bgp_aggregate_increment(bgp
, p
, new, afi
, safi
);
4552 /* Register new BGP information. */
4553 bgp_info_add(rn
, new);
4555 /* route_node_get lock */
4556 bgp_unlock_node(rn
);
4558 /* Process change. */
4559 bgp_process(bgp
, rn
, afi
, safi
);
4561 if (SAFI_UNICAST
== safi
4562 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
4563 || bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
4564 vpn_leak_from_vrf_update(bgp_get_default(), bgp
, new);
4567 /* Unintern original. */
4568 aspath_unintern(&attr
.aspath
);
4571 void bgp_static_withdraw(struct bgp
*bgp
, struct prefix
*p
, afi_t afi
,
4574 struct bgp_node
*rn
;
4575 struct bgp_info
*ri
;
4577 rn
= bgp_afi_node_get(bgp
->rib
[afi
][safi
], afi
, safi
, p
, NULL
);
4579 /* Check selected route and self inserted route. */
4580 for (ri
= rn
->info
; ri
; ri
= ri
->next
)
4581 if (ri
->peer
== bgp
->peer_self
&& ri
->type
== ZEBRA_ROUTE_BGP
4582 && ri
->sub_type
== BGP_ROUTE_STATIC
)
4585 /* Withdraw static BGP route from routing table. */
4587 if (SAFI_UNICAST
== safi
4588 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
4589 || bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
4590 vpn_leak_from_vrf_withdraw(bgp_get_default(), bgp
, ri
);
4592 bgp_aggregate_decrement(bgp
, p
, ri
, afi
, safi
);
4593 bgp_unlink_nexthop(ri
);
4594 bgp_info_delete(rn
, ri
);
4595 bgp_process(bgp
, rn
, afi
, safi
);
4598 /* Unlock bgp_node_lookup. */
4599 bgp_unlock_node(rn
);
4603 * Used for SAFI_MPLS_VPN and SAFI_ENCAP
4605 static void bgp_static_withdraw_safi(struct bgp
*bgp
, struct prefix
*p
,
4606 afi_t afi
, safi_t safi
,
4607 struct prefix_rd
*prd
)
4609 struct bgp_node
*rn
;
4610 struct bgp_info
*ri
;
4612 rn
= bgp_afi_node_get(bgp
->rib
[afi
][safi
], afi
, safi
, p
, prd
);
4614 /* Check selected route and self inserted route. */
4615 for (ri
= rn
->info
; ri
; ri
= ri
->next
)
4616 if (ri
->peer
== bgp
->peer_self
&& ri
->type
== ZEBRA_ROUTE_BGP
4617 && ri
->sub_type
== BGP_ROUTE_STATIC
)
4620 /* Withdraw static BGP route from routing table. */
4623 rfapiProcessWithdraw(
4624 ri
->peer
, NULL
, p
, prd
, ri
->attr
, afi
, safi
, ri
->type
,
4625 1); /* Kill, since it is an administrative change */
4627 if (SAFI_MPLS_VPN
== safi
4628 && bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
) {
4629 vpn_leak_to_vrf_withdraw(bgp
, ri
);
4631 bgp_aggregate_decrement(bgp
, p
, ri
, afi
, safi
);
4632 bgp_info_delete(rn
, ri
);
4633 bgp_process(bgp
, rn
, afi
, safi
);
4636 /* Unlock bgp_node_lookup. */
4637 bgp_unlock_node(rn
);
4640 static void bgp_static_update_safi(struct bgp
*bgp
, struct prefix
*p
,
4641 struct bgp_static
*bgp_static
, afi_t afi
,
4644 struct bgp_node
*rn
;
4645 struct bgp_info
*new;
4646 struct attr
*attr_new
;
4647 struct attr attr
= {0};
4648 struct bgp_info
*ri
;
4650 mpls_label_t label
= 0;
4652 uint32_t num_labels
= 0;
4657 if (bgp_static
->label
!= MPLS_INVALID_LABEL
)
4659 rn
= bgp_afi_node_get(bgp
->rib
[afi
][safi
], afi
, safi
, p
,
4662 bgp_attr_default_set(&attr
, BGP_ORIGIN_IGP
);
4664 attr
.nexthop
= bgp_static
->igpnexthop
;
4665 attr
.med
= bgp_static
->igpmetric
;
4666 attr
.flag
|= ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
);
4668 if ((safi
== SAFI_EVPN
) || (safi
== SAFI_MPLS_VPN
)
4669 || (safi
== SAFI_ENCAP
)) {
4670 if (afi
== AFI_IP
) {
4671 attr
.mp_nexthop_global_in
= bgp_static
->igpnexthop
;
4672 attr
.mp_nexthop_len
= IPV4_MAX_BYTELEN
;
4675 if (afi
== AFI_L2VPN
) {
4676 if (bgp_static
->gatewayIp
.family
== AF_INET
)
4678 bgp_static
->gatewayIp
.u
.prefix4
.s_addr
;
4679 else if (bgp_static
->gatewayIp
.family
== AF_INET6
)
4680 memcpy(&(add
.ipv6
), &(bgp_static
->gatewayIp
.u
.prefix6
),
4681 sizeof(struct in6_addr
));
4682 overlay_index_update(&attr
, bgp_static
->eth_s_id
, &add
);
4683 if (bgp_static
->encap_tunneltype
== BGP_ENCAP_TYPE_VXLAN
) {
4684 struct bgp_encap_type_vxlan bet
;
4685 memset(&bet
, 0, sizeof(struct bgp_encap_type_vxlan
));
4686 bet
.vnid
= p
->u
.prefix_evpn
.prefix_addr
.eth_tag
;
4687 bgp_encap_type_vxlan_to_tlv(&bet
, &attr
);
4689 if (bgp_static
->router_mac
) {
4690 bgp_add_routermac_ecom(&attr
, bgp_static
->router_mac
);
4693 /* Apply route-map. */
4694 if (bgp_static
->rmap
.name
) {
4695 struct attr attr_tmp
= attr
;
4696 struct bgp_info info
;
4699 info
.peer
= bgp
->peer_self
;
4700 info
.attr
= &attr_tmp
;
4702 SET_FLAG(bgp
->peer_self
->rmap_type
, PEER_RMAP_TYPE_NETWORK
);
4704 ret
= route_map_apply(bgp_static
->rmap
.map
, p
, RMAP_BGP
, &info
);
4706 bgp
->peer_self
->rmap_type
= 0;
4708 if (ret
== RMAP_DENYMATCH
) {
4709 /* Free uninterned attribute. */
4710 bgp_attr_flush(&attr_tmp
);
4712 /* Unintern original. */
4713 aspath_unintern(&attr
.aspath
);
4714 bgp_static_withdraw_safi(bgp
, p
, afi
, safi
,
4719 attr_new
= bgp_attr_intern(&attr_tmp
);
4721 attr_new
= bgp_attr_intern(&attr
);
4724 for (ri
= rn
->info
; ri
; ri
= ri
->next
)
4725 if (ri
->peer
== bgp
->peer_self
&& ri
->type
== ZEBRA_ROUTE_BGP
4726 && ri
->sub_type
== BGP_ROUTE_STATIC
)
4730 memset(&add
, 0, sizeof(union gw_addr
));
4731 if (attrhash_cmp(ri
->attr
, attr_new
)
4732 && overlay_index_equal(afi
, ri
, bgp_static
->eth_s_id
, &add
)
4733 && !CHECK_FLAG(ri
->flags
, BGP_INFO_REMOVED
)) {
4734 bgp_unlock_node(rn
);
4735 bgp_attr_unintern(&attr_new
);
4736 aspath_unintern(&attr
.aspath
);
4739 /* The attribute is changed. */
4740 bgp_info_set_flag(rn
, ri
, BGP_INFO_ATTR_CHANGED
);
4742 /* Rewrite BGP route information. */
4743 if (CHECK_FLAG(ri
->flags
, BGP_INFO_REMOVED
))
4744 bgp_info_restore(rn
, ri
);
4746 bgp_aggregate_decrement(bgp
, p
, ri
, afi
, safi
);
4747 bgp_attr_unintern(&ri
->attr
);
4748 ri
->attr
= attr_new
;
4749 ri
->uptime
= bgp_clock();
4752 label
= decode_label(&ri
->extra
->label
[0]);
4755 /* Process change. */
4756 bgp_aggregate_increment(bgp
, p
, ri
, afi
, safi
);
4757 bgp_process(bgp
, rn
, afi
, safi
);
4759 if (SAFI_MPLS_VPN
== safi
4760 && bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
) {
4761 vpn_leak_to_vrf_update(bgp
, ri
);
4764 rfapiProcessUpdate(ri
->peer
, NULL
, p
, &bgp_static
->prd
,
4765 ri
->attr
, afi
, safi
, ri
->type
,
4766 ri
->sub_type
, &label
);
4768 bgp_unlock_node(rn
);
4769 aspath_unintern(&attr
.aspath
);
4775 /* Make new BGP info. */
4776 new = info_make(ZEBRA_ROUTE_BGP
, BGP_ROUTE_STATIC
, 0, bgp
->peer_self
,
4778 SET_FLAG(new->flags
, BGP_INFO_VALID
);
4779 new->extra
= bgp_info_extra_new();
4781 new->extra
->label
[0] = bgp_static
->label
;
4782 new->extra
->num_labels
= num_labels
;
4785 label
= decode_label(&bgp_static
->label
);
4788 /* Aggregate address increment. */
4789 bgp_aggregate_increment(bgp
, p
, new, afi
, safi
);
4791 /* Register new BGP information. */
4792 bgp_info_add(rn
, new);
4793 /* route_node_get lock */
4794 bgp_unlock_node(rn
);
4796 /* Process change. */
4797 bgp_process(bgp
, rn
, afi
, safi
);
4799 if (SAFI_MPLS_VPN
== safi
4800 && bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
) {
4801 vpn_leak_to_vrf_update(bgp
, new);
4804 rfapiProcessUpdate(new->peer
, NULL
, p
, &bgp_static
->prd
, new->attr
, afi
,
4805 safi
, new->type
, new->sub_type
, &label
);
4808 /* Unintern original. */
4809 aspath_unintern(&attr
.aspath
);
4812 /* Configure static BGP network. When user don't run zebra, static
4813 route should be installed as valid. */
4814 static int bgp_static_set(struct vty
*vty
, const char *negate
,
4815 const char *ip_str
, afi_t afi
, safi_t safi
,
4816 const char *rmap
, int backdoor
, uint32_t label_index
)
4818 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
4821 struct bgp_static
*bgp_static
;
4822 struct bgp_node
*rn
;
4823 uint8_t need_update
= 0;
4825 /* Convert IP prefix string to struct prefix. */
4826 ret
= str2prefix(ip_str
, &p
);
4828 vty_out(vty
, "%% Malformed prefix\n");
4829 return CMD_WARNING_CONFIG_FAILED
;
4831 if (afi
== AFI_IP6
&& IN6_IS_ADDR_LINKLOCAL(&p
.u
.prefix6
)) {
4832 vty_out(vty
, "%% Malformed prefix (link-local address)\n");
4833 return CMD_WARNING_CONFIG_FAILED
;
4840 /* Set BGP static route configuration. */
4841 rn
= bgp_node_lookup(bgp
->route
[afi
][safi
], &p
);
4844 vty_out(vty
, "%% Can't find static route specified\n");
4845 return CMD_WARNING_CONFIG_FAILED
;
4848 bgp_static
= rn
->info
;
4850 if ((label_index
!= BGP_INVALID_LABEL_INDEX
)
4851 && (label_index
!= bgp_static
->label_index
)) {
4853 "%% label-index doesn't match static route\n");
4854 return CMD_WARNING_CONFIG_FAILED
;
4857 if ((rmap
&& bgp_static
->rmap
.name
)
4858 && strcmp(rmap
, bgp_static
->rmap
.name
)) {
4860 "%% route-map name doesn't match static route\n");
4861 return CMD_WARNING_CONFIG_FAILED
;
4864 /* Update BGP RIB. */
4865 if (!bgp_static
->backdoor
)
4866 bgp_static_withdraw(bgp
, &p
, afi
, safi
);
4868 /* Clear configuration. */
4869 bgp_static_free(bgp_static
);
4871 bgp_unlock_node(rn
);
4872 bgp_unlock_node(rn
);
4875 /* Set BGP static route configuration. */
4876 rn
= bgp_node_get(bgp
->route
[afi
][safi
], &p
);
4879 /* Configuration change. */
4880 bgp_static
= rn
->info
;
4882 /* Label index cannot be changed. */
4883 if (bgp_static
->label_index
!= label_index
) {
4884 vty_out(vty
, "%% cannot change label-index\n");
4885 return CMD_WARNING_CONFIG_FAILED
;
4888 /* Check previous routes are installed into BGP. */
4889 if (bgp_static
->valid
4890 && bgp_static
->backdoor
!= backdoor
)
4893 bgp_static
->backdoor
= backdoor
;
4896 if (bgp_static
->rmap
.name
)
4897 XFREE(MTYPE_ROUTE_MAP_NAME
,
4898 bgp_static
->rmap
.name
);
4899 bgp_static
->rmap
.name
=
4900 XSTRDUP(MTYPE_ROUTE_MAP_NAME
, rmap
);
4901 bgp_static
->rmap
.map
=
4902 route_map_lookup_by_name(rmap
);
4904 if (bgp_static
->rmap
.name
)
4905 XFREE(MTYPE_ROUTE_MAP_NAME
,
4906 bgp_static
->rmap
.name
);
4907 bgp_static
->rmap
.name
= NULL
;
4908 bgp_static
->rmap
.map
= NULL
;
4909 bgp_static
->valid
= 0;
4911 bgp_unlock_node(rn
);
4913 /* New configuration. */
4914 bgp_static
= bgp_static_new();
4915 bgp_static
->backdoor
= backdoor
;
4916 bgp_static
->valid
= 0;
4917 bgp_static
->igpmetric
= 0;
4918 bgp_static
->igpnexthop
.s_addr
= 0;
4919 bgp_static
->label_index
= label_index
;
4922 if (bgp_static
->rmap
.name
)
4923 XFREE(MTYPE_ROUTE_MAP_NAME
,
4924 bgp_static
->rmap
.name
);
4925 bgp_static
->rmap
.name
=
4926 XSTRDUP(MTYPE_ROUTE_MAP_NAME
, rmap
);
4927 bgp_static
->rmap
.map
=
4928 route_map_lookup_by_name(rmap
);
4930 rn
->info
= bgp_static
;
4933 bgp_static
->valid
= 1;
4935 bgp_static_withdraw(bgp
, &p
, afi
, safi
);
4937 if (!bgp_static
->backdoor
)
4938 bgp_static_update(bgp
, &p
, bgp_static
, afi
, safi
);
4944 void bgp_static_add(struct bgp
*bgp
)
4948 struct bgp_node
*rn
;
4949 struct bgp_node
*rm
;
4950 struct bgp_table
*table
;
4951 struct bgp_static
*bgp_static
;
4953 FOREACH_AFI_SAFI (afi
, safi
)
4954 for (rn
= bgp_table_top(bgp
->route
[afi
][safi
]); rn
;
4955 rn
= bgp_route_next(rn
)) {
4956 if (rn
->info
== NULL
)
4959 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_ENCAP
)
4960 || (safi
== SAFI_EVPN
)) {
4963 for (rm
= bgp_table_top(table
); rm
;
4964 rm
= bgp_route_next(rm
)) {
4965 bgp_static
= rm
->info
;
4966 bgp_static_update_safi(bgp
, &rm
->p
,
4971 bgp_static_update(bgp
, &rn
->p
, rn
->info
, afi
,
4977 /* Called from bgp_delete(). Delete all static routes from the BGP
4979 void bgp_static_delete(struct bgp
*bgp
)
4983 struct bgp_node
*rn
;
4984 struct bgp_node
*rm
;
4985 struct bgp_table
*table
;
4986 struct bgp_static
*bgp_static
;
4988 FOREACH_AFI_SAFI (afi
, safi
)
4989 for (rn
= bgp_table_top(bgp
->route
[afi
][safi
]); rn
;
4990 rn
= bgp_route_next(rn
)) {
4991 if (rn
->info
== NULL
)
4994 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_ENCAP
)
4995 || (safi
== SAFI_EVPN
)) {
4998 for (rm
= bgp_table_top(table
); rm
;
4999 rm
= bgp_route_next(rm
)) {
5000 bgp_static
= rm
->info
;
5001 bgp_static_withdraw_safi(
5002 bgp
, &rm
->p
, AFI_IP
, safi
,
5003 (struct prefix_rd
*)&rn
->p
);
5004 bgp_static_free(bgp_static
);
5006 bgp_unlock_node(rn
);
5009 bgp_static
= rn
->info
;
5010 bgp_static_withdraw(bgp
, &rn
->p
, afi
, safi
);
5011 bgp_static_free(bgp_static
);
5013 bgp_unlock_node(rn
);
5018 void bgp_static_redo_import_check(struct bgp
*bgp
)
5022 struct bgp_node
*rn
;
5023 struct bgp_node
*rm
;
5024 struct bgp_table
*table
;
5025 struct bgp_static
*bgp_static
;
5027 /* Use this flag to force reprocessing of the route */
5028 bgp_flag_set(bgp
, BGP_FLAG_FORCE_STATIC_PROCESS
);
5029 FOREACH_AFI_SAFI (afi
, safi
) {
5030 for (rn
= bgp_table_top(bgp
->route
[afi
][safi
]); rn
;
5031 rn
= bgp_route_next(rn
)) {
5032 if (rn
->info
== NULL
)
5035 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_ENCAP
)
5036 || (safi
== SAFI_EVPN
)) {
5039 for (rm
= bgp_table_top(table
); rm
;
5040 rm
= bgp_route_next(rm
)) {
5041 bgp_static
= rm
->info
;
5042 bgp_static_update_safi(bgp
, &rm
->p
,
5047 bgp_static
= rn
->info
;
5048 bgp_static_update(bgp
, &rn
->p
, bgp_static
, afi
,
5053 bgp_flag_unset(bgp
, BGP_FLAG_FORCE_STATIC_PROCESS
);
5056 static void bgp_purge_af_static_redist_routes(struct bgp
*bgp
, afi_t afi
,
5059 struct bgp_table
*table
;
5060 struct bgp_node
*rn
;
5061 struct bgp_info
*ri
;
5063 table
= bgp
->rib
[afi
][safi
];
5064 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
)) {
5065 for (ri
= rn
->info
; ri
; ri
= ri
->next
) {
5066 if (ri
->peer
== bgp
->peer_self
5067 && ((ri
->type
== ZEBRA_ROUTE_BGP
5068 && ri
->sub_type
== BGP_ROUTE_STATIC
)
5069 || (ri
->type
!= ZEBRA_ROUTE_BGP
5071 == BGP_ROUTE_REDISTRIBUTE
))) {
5072 bgp_aggregate_decrement(bgp
, &rn
->p
, ri
, afi
,
5074 bgp_unlink_nexthop(ri
);
5075 bgp_info_delete(rn
, ri
);
5076 bgp_process(bgp
, rn
, afi
, safi
);
5083 * Purge all networks and redistributed routes from routing table.
5084 * Invoked upon the instance going down.
5086 void bgp_purge_static_redist_routes(struct bgp
*bgp
)
5091 FOREACH_AFI_SAFI (afi
, safi
)
5092 bgp_purge_af_static_redist_routes(bgp
, afi
, safi
);
5097 * Currently this is used to set static routes for VPN and ENCAP.
5098 * I think it can probably be factored with bgp_static_set.
5100 int bgp_static_set_safi(afi_t afi
, safi_t safi
, struct vty
*vty
,
5101 const char *ip_str
, const char *rd_str
,
5102 const char *label_str
, const char *rmap_str
,
5103 int evpn_type
, const char *esi
, const char *gwip
,
5104 const char *ethtag
, const char *routermac
)
5106 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
5109 struct prefix_rd prd
;
5110 struct bgp_node
*prn
;
5111 struct bgp_node
*rn
;
5112 struct bgp_table
*table
;
5113 struct bgp_static
*bgp_static
;
5114 mpls_label_t label
= MPLS_INVALID_LABEL
;
5115 struct prefix gw_ip
;
5117 /* validate ip prefix */
5118 ret
= str2prefix(ip_str
, &p
);
5120 vty_out(vty
, "%% Malformed prefix\n");
5121 return CMD_WARNING_CONFIG_FAILED
;
5124 if ((afi
== AFI_L2VPN
)
5125 && (bgp_build_evpn_prefix(evpn_type
,
5126 ethtag
!= NULL
? atol(ethtag
) : 0, &p
))) {
5127 vty_out(vty
, "%% L2VPN prefix could not be forged\n");
5128 return CMD_WARNING_CONFIG_FAILED
;
5131 ret
= str2prefix_rd(rd_str
, &prd
);
5133 vty_out(vty
, "%% Malformed rd\n");
5134 return CMD_WARNING_CONFIG_FAILED
;
5138 unsigned long label_val
;
5139 label_val
= strtoul(label_str
, NULL
, 10);
5140 encode_label(label_val
, &label
);
5143 if (safi
== SAFI_EVPN
) {
5144 if (esi
&& str2esi(esi
, NULL
) == 0) {
5145 vty_out(vty
, "%% Malformed ESI\n");
5146 return CMD_WARNING_CONFIG_FAILED
;
5148 if (routermac
&& prefix_str2mac(routermac
, NULL
) == 0) {
5149 vty_out(vty
, "%% Malformed Router MAC\n");
5150 return CMD_WARNING_CONFIG_FAILED
;
5153 memset(&gw_ip
, 0, sizeof(struct prefix
));
5154 ret
= str2prefix(gwip
, &gw_ip
);
5156 vty_out(vty
, "%% Malformed GatewayIp\n");
5157 return CMD_WARNING_CONFIG_FAILED
;
5159 if ((gw_ip
.family
== AF_INET
5160 && is_evpn_prefix_ipaddr_v6(
5161 (struct prefix_evpn
*)&p
))
5162 || (gw_ip
.family
== AF_INET6
5163 && is_evpn_prefix_ipaddr_v4(
5164 (struct prefix_evpn
*)&p
))) {
5166 "%% GatewayIp family differs with IP prefix\n");
5167 return CMD_WARNING_CONFIG_FAILED
;
5171 prn
= bgp_node_get(bgp
->route
[afi
][safi
], (struct prefix
*)&prd
);
5172 if (prn
->info
== NULL
)
5173 prn
->info
= bgp_table_init(bgp
, afi
, safi
);
5175 bgp_unlock_node(prn
);
5178 rn
= bgp_node_get(table
, &p
);
5181 vty_out(vty
, "%% Same network configuration exists\n");
5182 bgp_unlock_node(rn
);
5184 /* New configuration. */
5185 bgp_static
= bgp_static_new();
5186 bgp_static
->backdoor
= 0;
5187 bgp_static
->valid
= 0;
5188 bgp_static
->igpmetric
= 0;
5189 bgp_static
->igpnexthop
.s_addr
= 0;
5190 bgp_static
->label
= label
;
5191 bgp_static
->prd
= prd
;
5194 if (bgp_static
->rmap
.name
)
5195 XFREE(MTYPE_ROUTE_MAP_NAME
,
5196 bgp_static
->rmap
.name
);
5197 bgp_static
->rmap
.name
=
5198 XSTRDUP(MTYPE_ROUTE_MAP_NAME
, rmap_str
);
5199 bgp_static
->rmap
.map
=
5200 route_map_lookup_by_name(rmap_str
);
5203 if (safi
== SAFI_EVPN
) {
5205 bgp_static
->eth_s_id
=
5207 sizeof(struct eth_segment_id
));
5208 str2esi(esi
, bgp_static
->eth_s_id
);
5211 bgp_static
->router_mac
=
5212 XCALLOC(MTYPE_ATTR
, ETH_ALEN
+ 1);
5213 (void)prefix_str2mac(routermac
,
5214 bgp_static
->router_mac
);
5217 prefix_copy(&bgp_static
->gatewayIp
, &gw_ip
);
5219 rn
->info
= bgp_static
;
5221 bgp_static
->valid
= 1;
5222 bgp_static_update_safi(bgp
, &p
, bgp_static
, afi
, safi
);
5228 /* Configure static BGP network. */
5229 int bgp_static_unset_safi(afi_t afi
, safi_t safi
, struct vty
*vty
,
5230 const char *ip_str
, const char *rd_str
,
5231 const char *label_str
, int evpn_type
, const char *esi
,
5232 const char *gwip
, const char *ethtag
)
5234 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
5237 struct prefix_rd prd
;
5238 struct bgp_node
*prn
;
5239 struct bgp_node
*rn
;
5240 struct bgp_table
*table
;
5241 struct bgp_static
*bgp_static
;
5242 mpls_label_t label
= MPLS_INVALID_LABEL
;
5244 /* Convert IP prefix string to struct prefix. */
5245 ret
= str2prefix(ip_str
, &p
);
5247 vty_out(vty
, "%% Malformed prefix\n");
5248 return CMD_WARNING_CONFIG_FAILED
;
5251 if ((afi
== AFI_L2VPN
)
5252 && (bgp_build_evpn_prefix(evpn_type
,
5253 ethtag
!= NULL
? atol(ethtag
) : 0, &p
))) {
5254 vty_out(vty
, "%% L2VPN prefix could not be forged\n");
5255 return CMD_WARNING_CONFIG_FAILED
;
5257 ret
= str2prefix_rd(rd_str
, &prd
);
5259 vty_out(vty
, "%% Malformed rd\n");
5260 return CMD_WARNING_CONFIG_FAILED
;
5264 unsigned long label_val
;
5265 label_val
= strtoul(label_str
, NULL
, 10);
5266 encode_label(label_val
, &label
);
5269 prn
= bgp_node_get(bgp
->route
[afi
][safi
], (struct prefix
*)&prd
);
5270 if (prn
->info
== NULL
)
5271 prn
->info
= bgp_table_init(bgp
, afi
, safi
);
5273 bgp_unlock_node(prn
);
5276 rn
= bgp_node_lookup(table
, &p
);
5279 bgp_static_withdraw_safi(bgp
, &p
, afi
, safi
, &prd
);
5281 bgp_static
= rn
->info
;
5282 bgp_static_free(bgp_static
);
5284 bgp_unlock_node(rn
);
5285 bgp_unlock_node(rn
);
5287 vty_out(vty
, "%% Can't find the route\n");
5292 static int bgp_table_map_set(struct vty
*vty
, afi_t afi
, safi_t safi
,
5293 const char *rmap_name
)
5295 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
5296 struct bgp_rmap
*rmap
;
5298 rmap
= &bgp
->table_map
[afi
][safi
];
5301 XFREE(MTYPE_ROUTE_MAP_NAME
, rmap
->name
);
5302 rmap
->name
= XSTRDUP(MTYPE_ROUTE_MAP_NAME
, rmap_name
);
5303 rmap
->map
= route_map_lookup_by_name(rmap_name
);
5306 XFREE(MTYPE_ROUTE_MAP_NAME
, rmap
->name
);
5311 if (bgp_fibupd_safi(safi
))
5312 bgp_zebra_announce_table(bgp
, afi
, safi
);
5317 static int bgp_table_map_unset(struct vty
*vty
, afi_t afi
, safi_t safi
,
5318 const char *rmap_name
)
5320 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
5321 struct bgp_rmap
*rmap
;
5323 rmap
= &bgp
->table_map
[afi
][safi
];
5325 XFREE(MTYPE_ROUTE_MAP_NAME
, rmap
->name
);
5329 if (bgp_fibupd_safi(safi
))
5330 bgp_zebra_announce_table(bgp
, afi
, safi
);
5335 void bgp_config_write_table_map(struct vty
*vty
, struct bgp
*bgp
, afi_t afi
,
5338 if (bgp
->table_map
[afi
][safi
].name
) {
5339 vty_out(vty
, " table-map %s\n",
5340 bgp
->table_map
[afi
][safi
].name
);
5344 DEFUN (bgp_table_map
,
5347 "BGP table to RIB route download filter\n"
5348 "Name of the route map\n")
5351 return bgp_table_map_set(vty
, bgp_node_afi(vty
), bgp_node_safi(vty
),
5352 argv
[idx_word
]->arg
);
5354 DEFUN (no_bgp_table_map
,
5355 no_bgp_table_map_cmd
,
5356 "no table-map WORD",
5358 "BGP table to RIB route download filter\n"
5359 "Name of the route map\n")
5362 return bgp_table_map_unset(vty
, bgp_node_afi(vty
), bgp_node_safi(vty
),
5363 argv
[idx_word
]->arg
);
5369 <A.B.C.D/M$prefix|A.B.C.D$address [mask A.B.C.D$netmask]> \
5370 [{route-map WORD$map_name|label-index (0-1048560)$label_index| \
5371 backdoor$backdoor}]",
5373 "Specify a network to announce via BGP\n"
5378 "Route-map to modify the attributes\n"
5379 "Name of the route map\n"
5380 "Label index to associate with the prefix\n"
5381 "Label index value\n"
5382 "Specify a BGP backdoor route\n")
5384 char addr_prefix_str
[BUFSIZ
];
5389 ret
= netmask_str2prefix_str(address_str
, netmask_str
,
5392 vty_out(vty
, "%% Inconsistent address and mask\n");
5393 return CMD_WARNING_CONFIG_FAILED
;
5397 return bgp_static_set(
5398 vty
, no
, address_str
? addr_prefix_str
: prefix_str
, AFI_IP
,
5399 bgp_node_safi(vty
), map_name
, backdoor
? 1 : 0,
5400 label_index
? (uint32_t)label_index
: BGP_INVALID_LABEL_INDEX
);
5403 DEFPY(ipv6_bgp_network
,
5404 ipv6_bgp_network_cmd
,
5405 "[no] network X:X::X:X/M$prefix \
5406 [{route-map WORD$map_name|label-index (0-1048560)$label_index}]",
5408 "Specify a network to announce via BGP\n"
5410 "Route-map to modify the attributes\n"
5411 "Name of the route map\n"
5412 "Label index to associate with the prefix\n"
5413 "Label index value\n")
5415 return bgp_static_set(
5416 vty
, no
, prefix_str
, AFI_IP6
, bgp_node_safi(vty
), map_name
, 0,
5417 label_index
? (uint32_t)label_index
: BGP_INVALID_LABEL_INDEX
);
5420 /* Aggreagete address:
5422 advertise-map Set condition to advertise attribute
5423 as-set Generate AS set path information
5424 attribute-map Set attributes of aggregate
5425 route-map Set parameters of aggregate
5426 summary-only Filter more specific routes from updates
5427 suppress-map Conditionally filter more specific routes from updates
5430 struct bgp_aggregate
{
5431 /* Summary-only flag. */
5432 uint8_t summary_only
;
5434 /* AS set generation. */
5437 /* Route-map for aggregated route. */
5438 struct route_map
*map
;
5440 /* Suppress-count. */
5441 unsigned long count
;
5443 /* SAFI configuration. */
5447 static struct bgp_aggregate
*bgp_aggregate_new(void)
5449 return XCALLOC(MTYPE_BGP_AGGREGATE
, sizeof(struct bgp_aggregate
));
5452 static void bgp_aggregate_free(struct bgp_aggregate
*aggregate
)
5454 XFREE(MTYPE_BGP_AGGREGATE
, aggregate
);
5457 static int bgp_aggregate_info_same(struct bgp_info
*ri
, uint8_t origin
,
5458 struct aspath
*aspath
,
5459 struct community
*comm
)
5461 static struct aspath
*ae
= NULL
;
5464 ae
= aspath_empty();
5469 if (origin
!= ri
->attr
->origin
)
5472 if (!aspath_cmp(ri
->attr
->aspath
, (aspath
) ? aspath
: ae
))
5475 if (!community_cmp(ri
->attr
->community
, comm
))
5481 static void bgp_aggregate_install(struct bgp
*bgp
, afi_t afi
, safi_t safi
,
5482 struct prefix
*p
, uint8_t origin
,
5483 struct aspath
*aspath
,
5484 struct community
*community
,
5485 uint8_t atomic_aggregate
,
5486 struct bgp_aggregate
*aggregate
)
5488 struct bgp_node
*rn
;
5489 struct bgp_table
*table
;
5490 struct bgp_info
*ri
, *new;
5492 table
= bgp
->rib
[afi
][safi
];
5494 rn
= bgp_node_get(table
, p
);
5496 for (ri
= rn
->info
; ri
; ri
= ri
->next
)
5497 if (ri
->peer
== bgp
->peer_self
&& ri
->type
== ZEBRA_ROUTE_BGP
5498 && ri
->sub_type
== BGP_ROUTE_AGGREGATE
)
5501 if (aggregate
->count
> 0) {
5503 * If the aggregate information has not changed
5504 * no need to re-install it again.
5506 if (bgp_aggregate_info_same(rn
->info
, origin
, aspath
,
5508 bgp_unlock_node(rn
);
5511 aspath_free(aspath
);
5513 community_free(community
);
5519 * Mark the old as unusable
5522 bgp_info_delete(rn
, ri
);
5525 ZEBRA_ROUTE_BGP
, BGP_ROUTE_AGGREGATE
, 0, bgp
->peer_self
,
5526 bgp_attr_aggregate_intern(bgp
, origin
, aspath
,
5527 community
, aggregate
->as_set
,
5530 SET_FLAG(new->flags
, BGP_INFO_VALID
);
5532 bgp_info_add(rn
, new);
5533 bgp_process(bgp
, rn
, afi
, safi
);
5535 for (ri
= rn
->info
; ri
; ri
= ri
->next
)
5536 if (ri
->peer
== bgp
->peer_self
5537 && ri
->type
== ZEBRA_ROUTE_BGP
5538 && ri
->sub_type
== BGP_ROUTE_AGGREGATE
)
5541 /* Withdraw static BGP route from routing table. */
5543 bgp_info_delete(rn
, ri
);
5544 bgp_process(bgp
, rn
, afi
, safi
);
5548 bgp_unlock_node(rn
);
5551 /* Update an aggregate as routes are added/removed from the BGP table */
5552 static void bgp_aggregate_route(struct bgp
*bgp
, struct prefix
*p
,
5553 struct bgp_info
*rinew
, afi_t afi
, safi_t safi
,
5554 struct bgp_info
*del
,
5555 struct bgp_aggregate
*aggregate
)
5557 struct bgp_table
*table
;
5558 struct bgp_node
*top
;
5559 struct bgp_node
*rn
;
5561 struct aspath
*aspath
= NULL
;
5562 struct aspath
*asmerge
= NULL
;
5563 struct community
*community
= NULL
;
5564 struct community
*commerge
= NULL
;
5565 struct bgp_info
*ri
;
5566 unsigned long match
= 0;
5567 uint8_t atomic_aggregate
= 0;
5569 /* ORIGIN attribute: If at least one route among routes that are
5570 aggregated has ORIGIN with the value INCOMPLETE, then the
5571 aggregated route must have the ORIGIN attribute with the value
5572 INCOMPLETE. Otherwise, if at least one route among routes that
5573 are aggregated has ORIGIN with the value EGP, then the aggregated
5574 route must have the origin attribute with the value EGP. In all
5575 other case the value of the ORIGIN attribute of the aggregated
5576 route is INTERNAL. */
5577 origin
= BGP_ORIGIN_IGP
;
5579 table
= bgp
->rib
[afi
][safi
];
5581 top
= bgp_node_get(table
, p
);
5582 for (rn
= bgp_node_get(table
, p
); rn
;
5583 rn
= bgp_route_next_until(rn
, top
)) {
5584 if (rn
->p
.prefixlen
<= p
->prefixlen
)
5589 for (ri
= rn
->info
; ri
; ri
= ri
->next
) {
5590 if (BGP_INFO_HOLDDOWN(ri
))
5593 if (del
&& ri
== del
)
5597 & ATTR_FLAG_BIT(BGP_ATTR_ATOMIC_AGGREGATE
))
5598 atomic_aggregate
= 1;
5600 if (ri
->sub_type
== BGP_ROUTE_AGGREGATE
)
5604 * summary-only aggregate route suppress
5605 * aggregated route announcements.
5607 if (aggregate
->summary_only
) {
5608 (bgp_info_extra_get(ri
))->suppress
++;
5609 bgp_info_set_flag(rn
, ri
,
5610 BGP_INFO_ATTR_CHANGED
);
5617 * If at least one route among routes that are
5618 * aggregated has ORIGIN with the value INCOMPLETE,
5619 * then the aggregated route MUST have the ORIGIN
5620 * attribute with the value INCOMPLETE. Otherwise, if
5621 * at least one route among routes that are aggregated
5622 * has ORIGIN with the value EGP, then the aggregated
5623 * route MUST have the ORIGIN attribute with the value
5626 if (origin
< ri
->attr
->origin
)
5627 origin
= ri
->attr
->origin
;
5629 if (!aggregate
->as_set
)
5633 * as-set aggregate route generate origin, as path,
5634 * and community aggregation.
5637 asmerge
= aspath_aggregate(aspath
,
5639 aspath_free(aspath
);
5642 aspath
= aspath_dup(ri
->attr
->aspath
);
5644 if (!ri
->attr
->community
)
5648 commerge
= community_merge(community
,
5649 ri
->attr
->community
);
5650 community
= community_uniq_sort(commerge
);
5651 community_free(commerge
);
5653 community
= community_dup(ri
->attr
->community
);
5656 bgp_process(bgp
, rn
, afi
, safi
);
5658 bgp_unlock_node(top
);
5663 if (aggregate
->summary_only
)
5664 (bgp_info_extra_get(rinew
))->suppress
++;
5666 if (origin
< rinew
->attr
->origin
)
5667 origin
= rinew
->attr
->origin
;
5669 if (aggregate
->as_set
) {
5671 asmerge
= aspath_aggregate(aspath
,
5672 rinew
->attr
->aspath
);
5673 aspath_free(aspath
);
5676 aspath
= aspath_dup(rinew
->attr
->aspath
);
5678 if (rinew
->attr
->community
) {
5680 commerge
= community_merge(
5682 rinew
->attr
->community
);
5684 community_uniq_sort(commerge
);
5685 community_free(commerge
);
5687 community
= community_dup(
5688 rinew
->attr
->community
);
5693 bgp_aggregate_install(bgp
, afi
, safi
, p
, origin
, aspath
, community
,
5694 atomic_aggregate
, aggregate
);
5696 if (aggregate
->count
== 0) {
5698 aspath_free(aspath
);
5700 community_free(community
);
5704 static void bgp_aggregate_delete(struct bgp
*bgp
, struct prefix
*p
, afi_t afi
,
5705 safi_t safi
, struct bgp_aggregate
*aggregate
)
5707 struct bgp_table
*table
;
5708 struct bgp_node
*top
;
5709 struct bgp_node
*rn
;
5710 struct bgp_info
*ri
;
5711 unsigned long match
;
5713 table
= bgp
->rib
[afi
][safi
];
5715 /* If routes exists below this node, generate aggregate routes. */
5716 top
= bgp_node_get(table
, p
);
5717 for (rn
= bgp_node_get(table
, p
); rn
;
5718 rn
= bgp_route_next_until(rn
, top
)) {
5719 if (rn
->p
.prefixlen
<= p
->prefixlen
)
5723 for (ri
= rn
->info
; ri
; ri
= ri
->next
) {
5724 if (BGP_INFO_HOLDDOWN(ri
))
5727 if (ri
->sub_type
== BGP_ROUTE_AGGREGATE
)
5730 if (aggregate
->summary_only
&& ri
->extra
) {
5731 ri
->extra
->suppress
--;
5733 if (ri
->extra
->suppress
== 0) {
5735 rn
, ri
, BGP_INFO_ATTR_CHANGED
);
5742 /* If this node was suppressed, process the change. */
5744 bgp_process(bgp
, rn
, afi
, safi
);
5746 bgp_unlock_node(top
);
5749 void bgp_aggregate_increment(struct bgp
*bgp
, struct prefix
*p
,
5750 struct bgp_info
*ri
, afi_t afi
, safi_t safi
)
5752 struct bgp_node
*child
;
5753 struct bgp_node
*rn
;
5754 struct bgp_aggregate
*aggregate
;
5755 struct bgp_table
*table
;
5757 table
= bgp
->aggregate
[afi
][safi
];
5759 /* No aggregates configured. */
5760 if (bgp_table_top_nolock(table
) == NULL
)
5763 if (p
->prefixlen
== 0)
5766 if (BGP_INFO_HOLDDOWN(ri
))
5769 child
= bgp_node_get(table
, p
);
5771 /* Aggregate address configuration check. */
5772 for (rn
= child
; rn
; rn
= bgp_node_parent_nolock(rn
))
5773 if ((aggregate
= rn
->info
) != NULL
5774 && rn
->p
.prefixlen
< p
->prefixlen
) {
5775 bgp_aggregate_delete(bgp
, &rn
->p
, afi
, safi
, aggregate
);
5776 bgp_aggregate_route(bgp
, &rn
->p
, ri
, afi
, safi
, NULL
,
5779 bgp_unlock_node(child
);
5782 void bgp_aggregate_decrement(struct bgp
*bgp
, struct prefix
*p
,
5783 struct bgp_info
*del
, afi_t afi
, safi_t safi
)
5785 struct bgp_node
*child
;
5786 struct bgp_node
*rn
;
5787 struct bgp_aggregate
*aggregate
;
5788 struct bgp_table
*table
;
5790 table
= bgp
->aggregate
[afi
][safi
];
5792 /* No aggregates configured. */
5793 if (bgp_table_top_nolock(table
) == NULL
)
5796 if (p
->prefixlen
== 0)
5799 child
= bgp_node_get(table
, p
);
5801 /* Aggregate address configuration check. */
5802 for (rn
= child
; rn
; rn
= bgp_node_parent_nolock(rn
))
5803 if ((aggregate
= rn
->info
) != NULL
5804 && rn
->p
.prefixlen
< p
->prefixlen
) {
5805 bgp_aggregate_delete(bgp
, &rn
->p
, afi
, safi
, aggregate
);
5806 bgp_aggregate_route(bgp
, &rn
->p
, NULL
, afi
, safi
, del
,
5809 bgp_unlock_node(child
);
5812 /* Aggregate route attribute. */
5813 #define AGGREGATE_SUMMARY_ONLY 1
5814 #define AGGREGATE_AS_SET 1
5816 static int bgp_aggregate_unset(struct vty
*vty
, const char *prefix_str
,
5817 afi_t afi
, safi_t safi
)
5819 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
5822 struct bgp_node
*rn
;
5823 struct bgp_aggregate
*aggregate
;
5825 /* Convert string to prefix structure. */
5826 ret
= str2prefix(prefix_str
, &p
);
5828 vty_out(vty
, "Malformed prefix\n");
5829 return CMD_WARNING_CONFIG_FAILED
;
5833 /* Old configuration check. */
5834 rn
= bgp_node_lookup(bgp
->aggregate
[afi
][safi
], &p
);
5837 "%% There is no aggregate-address configuration.\n");
5838 return CMD_WARNING_CONFIG_FAILED
;
5841 aggregate
= rn
->info
;
5842 bgp_aggregate_delete(bgp
, &p
, afi
, safi
, aggregate
);
5843 bgp_aggregate_install(bgp
, afi
, safi
, &p
, 0, NULL
, NULL
, 0, aggregate
);
5845 /* Unlock aggregate address configuration. */
5847 bgp_aggregate_free(aggregate
);
5848 bgp_unlock_node(rn
);
5849 bgp_unlock_node(rn
);
5854 static int bgp_aggregate_set(struct vty
*vty
, const char *prefix_str
, afi_t afi
,
5855 safi_t safi
, uint8_t summary_only
, uint8_t as_set
)
5857 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
5860 struct bgp_node
*rn
;
5861 struct bgp_aggregate
*aggregate
;
5863 /* Convert string to prefix structure. */
5864 ret
= str2prefix(prefix_str
, &p
);
5866 vty_out(vty
, "Malformed prefix\n");
5867 return CMD_WARNING_CONFIG_FAILED
;
5871 if ((afi
== AFI_IP
&& p
.prefixlen
== IPV4_MAX_BITLEN
) ||
5872 (afi
== AFI_IP6
&& p
.prefixlen
== IPV6_MAX_BITLEN
)) {
5873 vty_out(vty
, "Specified prefix: %s will not result in any useful aggregation, disallowing\n",
5875 return CMD_WARNING_CONFIG_FAILED
;
5878 /* Old configuration check. */
5879 rn
= bgp_node_get(bgp
->aggregate
[afi
][safi
], &p
);
5882 vty_out(vty
, "There is already same aggregate network.\n");
5883 /* try to remove the old entry */
5884 ret
= bgp_aggregate_unset(vty
, prefix_str
, afi
, safi
);
5886 vty_out(vty
, "Error deleting aggregate.\n");
5887 bgp_unlock_node(rn
);
5888 return CMD_WARNING_CONFIG_FAILED
;
5892 /* Make aggregate address structure. */
5893 aggregate
= bgp_aggregate_new();
5894 aggregate
->summary_only
= summary_only
;
5895 aggregate
->as_set
= as_set
;
5896 aggregate
->safi
= safi
;
5897 rn
->info
= aggregate
;
5899 /* Aggregate address insert into BGP routing table. */
5900 bgp_aggregate_route(bgp
, &p
, NULL
, afi
, safi
, NULL
, aggregate
);
5905 DEFUN (aggregate_address
,
5906 aggregate_address_cmd
,
5907 "aggregate-address A.B.C.D/M [<as-set [summary-only]|summary-only [as-set]>]",
5908 "Configure BGP aggregate entries\n"
5909 "Aggregate prefix\n"
5910 "Generate AS set path information\n"
5911 "Filter more specific routes from updates\n"
5912 "Filter more specific routes from updates\n"
5913 "Generate AS set path information\n")
5916 argv_find(argv
, argc
, "A.B.C.D/M", &idx
);
5917 char *prefix
= argv
[idx
]->arg
;
5919 argv_find(argv
, argc
, "as-set", &idx
) ? AGGREGATE_AS_SET
: 0;
5921 int summary_only
= argv_find(argv
, argc
, "summary-only", &idx
)
5922 ? AGGREGATE_SUMMARY_ONLY
5925 return bgp_aggregate_set(vty
, prefix
, AFI_IP
, bgp_node_safi(vty
),
5926 summary_only
, as_set
);
5929 DEFUN (aggregate_address_mask
,
5930 aggregate_address_mask_cmd
,
5931 "aggregate-address A.B.C.D A.B.C.D [<as-set [summary-only]|summary-only [as-set]>]",
5932 "Configure BGP aggregate entries\n"
5933 "Aggregate address\n"
5935 "Generate AS set path information\n"
5936 "Filter more specific routes from updates\n"
5937 "Filter more specific routes from updates\n"
5938 "Generate AS set path information\n")
5941 argv_find(argv
, argc
, "A.B.C.D", &idx
);
5942 char *prefix
= argv
[idx
]->arg
;
5943 char *mask
= argv
[idx
+ 1]->arg
;
5945 argv_find(argv
, argc
, "as-set", &idx
) ? AGGREGATE_AS_SET
: 0;
5947 int summary_only
= argv_find(argv
, argc
, "summary-only", &idx
)
5948 ? AGGREGATE_SUMMARY_ONLY
5951 char prefix_str
[BUFSIZ
];
5952 int ret
= netmask_str2prefix_str(prefix
, mask
, prefix_str
);
5955 vty_out(vty
, "%% Inconsistent address and mask\n");
5956 return CMD_WARNING_CONFIG_FAILED
;
5959 return bgp_aggregate_set(vty
, prefix_str
, AFI_IP
, bgp_node_safi(vty
),
5960 summary_only
, as_set
);
5963 DEFUN (no_aggregate_address
,
5964 no_aggregate_address_cmd
,
5965 "no aggregate-address A.B.C.D/M [<as-set [summary-only]|summary-only [as-set]>]",
5967 "Configure BGP aggregate entries\n"
5968 "Aggregate prefix\n"
5969 "Generate AS set path information\n"
5970 "Filter more specific routes from updates\n"
5971 "Filter more specific routes from updates\n"
5972 "Generate AS set path information\n")
5975 argv_find(argv
, argc
, "A.B.C.D/M", &idx
);
5976 char *prefix
= argv
[idx
]->arg
;
5977 return bgp_aggregate_unset(vty
, prefix
, AFI_IP
, bgp_node_safi(vty
));
5980 DEFUN (no_aggregate_address_mask
,
5981 no_aggregate_address_mask_cmd
,
5982 "no aggregate-address A.B.C.D A.B.C.D [<as-set [summary-only]|summary-only [as-set]>]",
5984 "Configure BGP aggregate entries\n"
5985 "Aggregate address\n"
5987 "Generate AS set path information\n"
5988 "Filter more specific routes from updates\n"
5989 "Filter more specific routes from updates\n"
5990 "Generate AS set path information\n")
5993 argv_find(argv
, argc
, "A.B.C.D", &idx
);
5994 char *prefix
= argv
[idx
]->arg
;
5995 char *mask
= argv
[idx
+ 1]->arg
;
5997 char prefix_str
[BUFSIZ
];
5998 int ret
= netmask_str2prefix_str(prefix
, mask
, prefix_str
);
6001 vty_out(vty
, "%% Inconsistent address and mask\n");
6002 return CMD_WARNING_CONFIG_FAILED
;
6005 return bgp_aggregate_unset(vty
, prefix_str
, AFI_IP
, bgp_node_safi(vty
));
6008 DEFUN (ipv6_aggregate_address
,
6009 ipv6_aggregate_address_cmd
,
6010 "aggregate-address X:X::X:X/M [summary-only]",
6011 "Configure BGP aggregate entries\n"
6012 "Aggregate prefix\n"
6013 "Filter more specific routes from updates\n")
6016 argv_find(argv
, argc
, "X:X::X:X/M", &idx
);
6017 char *prefix
= argv
[idx
]->arg
;
6018 int sum_only
= argv_find(argv
, argc
, "summary-only", &idx
)
6019 ? AGGREGATE_SUMMARY_ONLY
6021 return bgp_aggregate_set(vty
, prefix
, AFI_IP6
, SAFI_UNICAST
, sum_only
,
6025 DEFUN (no_ipv6_aggregate_address
,
6026 no_ipv6_aggregate_address_cmd
,
6027 "no aggregate-address X:X::X:X/M [summary-only]",
6029 "Configure BGP aggregate entries\n"
6030 "Aggregate prefix\n"
6031 "Filter more specific routes from updates\n")
6034 argv_find(argv
, argc
, "X:X::X:X/M", &idx
);
6035 char *prefix
= argv
[idx
]->arg
;
6036 return bgp_aggregate_unset(vty
, prefix
, AFI_IP6
, SAFI_UNICAST
);
6039 /* Redistribute route treatment. */
6040 void bgp_redistribute_add(struct bgp
*bgp
, struct prefix
*p
,
6041 const union g_addr
*nexthop
, ifindex_t ifindex
,
6042 enum nexthop_types_t nhtype
, uint32_t metric
,
6043 uint8_t type
, unsigned short instance
,
6046 struct bgp_info
*new;
6047 struct bgp_info
*bi
;
6048 struct bgp_info info
;
6049 struct bgp_node
*bn
;
6051 struct attr
*new_attr
;
6054 struct bgp_redist
*red
;
6056 /* Make default attribute. */
6057 bgp_attr_default_set(&attr
, BGP_ORIGIN_INCOMPLETE
);
6060 case NEXTHOP_TYPE_IFINDEX
:
6062 case NEXTHOP_TYPE_IPV4
:
6063 case NEXTHOP_TYPE_IPV4_IFINDEX
:
6064 attr
.nexthop
= nexthop
->ipv4
;
6066 case NEXTHOP_TYPE_IPV6
:
6067 case NEXTHOP_TYPE_IPV6_IFINDEX
:
6068 attr
.mp_nexthop_global
= nexthop
->ipv6
;
6069 attr
.mp_nexthop_len
= BGP_ATTR_NHLEN_IPV6_GLOBAL
;
6071 case NEXTHOP_TYPE_BLACKHOLE
:
6072 switch (p
->family
) {
6074 attr
.nexthop
.s_addr
= INADDR_ANY
;
6077 memset(&attr
.mp_nexthop_global
, 0,
6078 sizeof(attr
.mp_nexthop_global
));
6079 attr
.mp_nexthop_len
= BGP_ATTR_NHLEN_IPV6_GLOBAL
;
6084 attr
.nh_ifindex
= ifindex
;
6087 attr
.flag
|= ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
);
6090 afi
= family2afi(p
->family
);
6092 red
= bgp_redist_lookup(bgp
, afi
, type
, instance
);
6094 struct attr attr_new
;
6096 /* Copy attribute for modification. */
6097 bgp_attr_dup(&attr_new
, &attr
);
6099 if (red
->redist_metric_flag
)
6100 attr_new
.med
= red
->redist_metric
;
6102 /* Apply route-map. */
6103 if (red
->rmap
.name
) {
6104 memset(&info
, 0, sizeof(struct bgp_info
));
6105 info
.peer
= bgp
->peer_self
;
6106 info
.attr
= &attr_new
;
6108 SET_FLAG(bgp
->peer_self
->rmap_type
,
6109 PEER_RMAP_TYPE_REDISTRIBUTE
);
6111 ret
= route_map_apply(red
->rmap
.map
, p
, RMAP_BGP
,
6114 bgp
->peer_self
->rmap_type
= 0;
6116 if (ret
== RMAP_DENYMATCH
) {
6117 /* Free uninterned attribute. */
6118 bgp_attr_flush(&attr_new
);
6120 /* Unintern original. */
6121 aspath_unintern(&attr
.aspath
);
6122 bgp_redistribute_delete(bgp
, p
, type
, instance
);
6127 if (bgp_flag_check(bgp
, BGP_FLAG_GRACEFUL_SHUTDOWN
))
6128 bgp_attr_add_gshut_community(&attr_new
);
6130 bn
= bgp_afi_node_get(bgp
->rib
[afi
][SAFI_UNICAST
], afi
,
6131 SAFI_UNICAST
, p
, NULL
);
6133 new_attr
= bgp_attr_intern(&attr_new
);
6135 for (bi
= bn
->info
; bi
; bi
= bi
->next
)
6136 if (bi
->peer
== bgp
->peer_self
6137 && bi
->sub_type
== BGP_ROUTE_REDISTRIBUTE
)
6141 /* Ensure the (source route) type is updated. */
6143 if (attrhash_cmp(bi
->attr
, new_attr
)
6144 && !CHECK_FLAG(bi
->flags
, BGP_INFO_REMOVED
)) {
6145 bgp_attr_unintern(&new_attr
);
6146 aspath_unintern(&attr
.aspath
);
6147 bgp_unlock_node(bn
);
6150 /* The attribute is changed. */
6151 bgp_info_set_flag(bn
, bi
,
6152 BGP_INFO_ATTR_CHANGED
);
6154 /* Rewrite BGP route information. */
6155 if (CHECK_FLAG(bi
->flags
, BGP_INFO_REMOVED
))
6156 bgp_info_restore(bn
, bi
);
6158 bgp_aggregate_decrement(bgp
, p
, bi
, afi
,
6160 bgp_attr_unintern(&bi
->attr
);
6161 bi
->attr
= new_attr
;
6162 bi
->uptime
= bgp_clock();
6164 /* Process change. */
6165 bgp_aggregate_increment(bgp
, p
, bi
, afi
,
6167 bgp_process(bgp
, bn
, afi
, SAFI_UNICAST
);
6168 bgp_unlock_node(bn
);
6169 aspath_unintern(&attr
.aspath
);
6171 if ((bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
)
6173 == BGP_INSTANCE_TYPE_DEFAULT
)) {
6175 vpn_leak_from_vrf_update(
6176 bgp_get_default(), bgp
, bi
);
6182 new = info_make(type
, BGP_ROUTE_REDISTRIBUTE
, instance
,
6183 bgp
->peer_self
, new_attr
, bn
);
6184 SET_FLAG(new->flags
, BGP_INFO_VALID
);
6186 bgp_aggregate_increment(bgp
, p
, new, afi
, SAFI_UNICAST
);
6187 bgp_info_add(bn
, new);
6188 bgp_unlock_node(bn
);
6189 bgp_process(bgp
, bn
, afi
, SAFI_UNICAST
);
6191 if ((bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
)
6192 || (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
6194 vpn_leak_from_vrf_update(bgp_get_default(), bgp
, new);
6198 /* Unintern original. */
6199 aspath_unintern(&attr
.aspath
);
6202 void bgp_redistribute_delete(struct bgp
*bgp
, struct prefix
*p
, uint8_t type
,
6203 unsigned short instance
)
6206 struct bgp_node
*rn
;
6207 struct bgp_info
*ri
;
6208 struct bgp_redist
*red
;
6210 afi
= family2afi(p
->family
);
6212 red
= bgp_redist_lookup(bgp
, afi
, type
, instance
);
6214 rn
= bgp_afi_node_get(bgp
->rib
[afi
][SAFI_UNICAST
], afi
,
6215 SAFI_UNICAST
, p
, NULL
);
6217 for (ri
= rn
->info
; ri
; ri
= ri
->next
)
6218 if (ri
->peer
== bgp
->peer_self
&& ri
->type
== type
)
6222 if ((bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
)
6223 || (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
6225 vpn_leak_from_vrf_withdraw(bgp_get_default(),
6228 bgp_aggregate_decrement(bgp
, p
, ri
, afi
, SAFI_UNICAST
);
6229 bgp_info_delete(rn
, ri
);
6230 bgp_process(bgp
, rn
, afi
, SAFI_UNICAST
);
6232 bgp_unlock_node(rn
);
6236 /* Withdraw specified route type's route. */
6237 void bgp_redistribute_withdraw(struct bgp
*bgp
, afi_t afi
, int type
,
6238 unsigned short instance
)
6240 struct bgp_node
*rn
;
6241 struct bgp_info
*ri
;
6242 struct bgp_table
*table
;
6244 table
= bgp
->rib
[afi
][SAFI_UNICAST
];
6246 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
)) {
6247 for (ri
= rn
->info
; ri
; ri
= ri
->next
)
6248 if (ri
->peer
== bgp
->peer_self
&& ri
->type
== type
6249 && ri
->instance
== instance
)
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
, &rn
->p
, ri
, afi
,
6261 bgp_info_delete(rn
, ri
);
6262 bgp_process(bgp
, rn
, afi
, SAFI_UNICAST
);
6267 /* Static function to display route. */
6268 static void route_vty_out_route(struct prefix
*p
, struct vty
*vty
,
6274 if (p
->family
== AF_INET
) {
6278 inet_ntop(p
->family
, &p
->u
.prefix
, buf
, BUFSIZ
),
6281 json_object_string_add(json
, "prefix",
6282 inet_ntop(p
->family
,
6285 json_object_int_add(json
, "prefixLen", p
->prefixlen
);
6287 } else if (p
->family
== AF_ETHERNET
) {
6288 prefix2str(p
, buf
, PREFIX_STRLEN
);
6289 len
= vty_out(vty
, "%s", buf
);
6290 } else if (p
->family
== AF_EVPN
) {
6294 bgp_evpn_route2str((struct prefix_evpn
*)p
, buf
,
6297 bgp_evpn_route2json((struct prefix_evpn
*)p
, json
);
6298 } else if (p
->family
== AF_FLOWSPEC
) {
6299 route_vty_out_flowspec(vty
, p
, NULL
,
6301 NLRI_STRING_FORMAT_JSON_SIMPLE
:
6302 NLRI_STRING_FORMAT_MIN
, json
);
6307 inet_ntop(p
->family
, &p
->u
.prefix
, buf
, BUFSIZ
),
6314 vty_out(vty
, "\n%*s", 20, " ");
6316 vty_out(vty
, "%*s", len
, " ");
6320 enum bgp_display_type
{
6324 /* Print the short form route status for a bgp_info */
6325 static void route_vty_short_status_out(struct vty
*vty
, struct bgp_info
*binfo
,
6326 json_object
*json_path
)
6330 /* Route status display. */
6331 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_REMOVED
))
6332 json_object_boolean_true_add(json_path
, "removed");
6334 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_STALE
))
6335 json_object_boolean_true_add(json_path
, "stale");
6337 if (binfo
->extra
&& binfo
->extra
->suppress
)
6338 json_object_boolean_true_add(json_path
, "suppressed");
6340 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_VALID
)
6341 && !CHECK_FLAG(binfo
->flags
, BGP_INFO_HISTORY
))
6342 json_object_boolean_true_add(json_path
, "valid");
6345 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_HISTORY
))
6346 json_object_boolean_true_add(json_path
, "history");
6348 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_DAMPED
))
6349 json_object_boolean_true_add(json_path
, "damped");
6351 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_SELECTED
))
6352 json_object_boolean_true_add(json_path
, "bestpath");
6354 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_MULTIPATH
))
6355 json_object_boolean_true_add(json_path
, "multipath");
6357 /* Internal route. */
6358 if ((binfo
->peer
->as
)
6359 && (binfo
->peer
->as
== binfo
->peer
->local_as
))
6360 json_object_string_add(json_path
, "pathFrom",
6363 json_object_string_add(json_path
, "pathFrom",
6369 /* Route status display. */
6370 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_REMOVED
))
6372 else if (CHECK_FLAG(binfo
->flags
, BGP_INFO_STALE
))
6374 else if (binfo
->extra
&& binfo
->extra
->suppress
)
6376 else if (CHECK_FLAG(binfo
->flags
, BGP_INFO_VALID
)
6377 && !CHECK_FLAG(binfo
->flags
, BGP_INFO_HISTORY
))
6383 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_HISTORY
))
6385 else if (CHECK_FLAG(binfo
->flags
, BGP_INFO_DAMPED
))
6387 else if (CHECK_FLAG(binfo
->flags
, BGP_INFO_SELECTED
))
6389 else if (CHECK_FLAG(binfo
->flags
, BGP_INFO_MULTIPATH
))
6394 /* Internal route. */
6395 if (binfo
->peer
&& (binfo
->peer
->as
)
6396 && (binfo
->peer
->as
== binfo
->peer
->local_as
))
6402 /* called from terminal list command */
6403 void route_vty_out(struct vty
*vty
, struct prefix
*p
, struct bgp_info
*binfo
,
6404 int display
, safi_t safi
, json_object
*json_paths
)
6407 json_object
*json_path
= NULL
;
6408 json_object
*json_nexthops
= NULL
;
6409 json_object
*json_nexthop_global
= NULL
;
6410 json_object
*json_nexthop_ll
= NULL
;
6411 char vrf_id_str
[VRF_NAMSIZ
] = {0};
6412 bool nexthop_self
= CHECK_FLAG(binfo
->flags
, BGP_INFO_ANNC_NH_SELF
)
6415 bool nexthop_othervrf
= false;
6416 vrf_id_t nexthop_vrfid
= VRF_DEFAULT
;
6417 const char *nexthop_vrfname
= "Default";
6420 json_path
= json_object_new_object();
6422 /* short status lead text */
6423 route_vty_short_status_out(vty
, binfo
, json_path
);
6426 /* print prefix and mask */
6428 route_vty_out_route(p
, vty
, json_path
);
6430 vty_out(vty
, "%*s", 17, " ");
6432 route_vty_out_route(p
, vty
, json_path
);
6435 /* Print attribute */
6439 json_object_array_add(json_paths
, json_path
);
6447 * If vrf id of nexthop is different from that of prefix,
6448 * set up printable string to append
6450 if (binfo
->extra
&& binfo
->extra
->bgp_orig
) {
6451 const char *self
= "";
6456 nexthop_othervrf
= true;
6457 nexthop_vrfid
= binfo
->extra
->bgp_orig
->vrf_id
;
6459 if (binfo
->extra
->bgp_orig
->vrf_id
== VRF_UNKNOWN
)
6460 snprintf(vrf_id_str
, sizeof(vrf_id_str
),
6461 "@%s%s", VRFID_NONE_STR
, self
);
6463 snprintf(vrf_id_str
, sizeof(vrf_id_str
), "@%u%s",
6464 binfo
->extra
->bgp_orig
->vrf_id
, self
);
6466 if (binfo
->extra
->bgp_orig
->inst_type
!=
6467 BGP_INSTANCE_TYPE_DEFAULT
)
6469 nexthop_vrfname
= binfo
->extra
->bgp_orig
->name
;
6471 const char *self
= "";
6476 snprintf(vrf_id_str
, sizeof(vrf_id_str
), "%s", self
);
6480 * For ENCAP and EVPN routes, nexthop address family is not
6481 * neccessarily the same as the prefix address family.
6482 * Both SAFI_MPLS_VPN and SAFI_ENCAP use the MP nexthop field
6483 * EVPN routes are also exchanged with a MP nexthop. Currently,
6485 * is only IPv4, the value will be present in either
6487 * attr->mp_nexthop_global_in
6489 if ((safi
== SAFI_ENCAP
) || (safi
== SAFI_MPLS_VPN
)) {
6492 int af
= NEXTHOP_FAMILY(attr
->mp_nexthop_len
);
6496 sprintf(nexthop
, "%s",
6497 inet_ntop(af
, &attr
->mp_nexthop_global_in
, buf
,
6501 sprintf(nexthop
, "%s",
6502 inet_ntop(af
, &attr
->mp_nexthop_global
, buf
,
6506 sprintf(nexthop
, "?");
6511 json_nexthop_global
= json_object_new_object();
6513 json_object_string_add(json_nexthop_global
, "afi",
6514 (af
== AF_INET
) ? "ip" : "ipv6");
6515 json_object_string_add(json_nexthop_global
,
6516 (af
== AF_INET
) ? "ip" : "ipv6",
6518 json_object_boolean_true_add(json_nexthop_global
,
6521 vty_out(vty
, "%s%s", nexthop
, vrf_id_str
);
6522 } else if (safi
== SAFI_EVPN
) {
6524 json_nexthop_global
= json_object_new_object();
6526 json_object_string_add(json_nexthop_global
, "ip",
6527 inet_ntoa(attr
->nexthop
));
6528 json_object_string_add(json_nexthop_global
, "afi",
6530 json_object_boolean_true_add(json_nexthop_global
,
6533 vty_out(vty
, "%-16s%s", inet_ntoa(attr
->nexthop
),
6535 } else if (safi
== SAFI_FLOWSPEC
) {
6536 if (attr
->nexthop
.s_addr
!= 0) {
6538 json_nexthop_global
= json_object_new_object();
6539 json_object_string_add(
6540 json_nexthop_global
, "ip",
6541 inet_ntoa(attr
->nexthop
));
6542 json_object_string_add(json_nexthop_global
,
6544 json_object_boolean_true_add(json_nexthop_global
,
6547 vty_out(vty
, "%-16s", inet_ntoa(attr
->nexthop
));
6550 } else if (p
->family
== AF_INET
&& !BGP_ATTR_NEXTHOP_AFI_IP6(attr
)) {
6552 json_nexthop_global
= json_object_new_object();
6554 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_EVPN
))
6555 json_object_string_add(
6556 json_nexthop_global
, "ip",
6557 inet_ntoa(attr
->mp_nexthop_global_in
));
6559 json_object_string_add(
6560 json_nexthop_global
, "ip",
6561 inet_ntoa(attr
->nexthop
));
6563 json_object_string_add(json_nexthop_global
, "afi",
6565 json_object_boolean_true_add(json_nexthop_global
,
6570 snprintf(buf
, sizeof(buf
), "%s%s",
6571 inet_ntoa(attr
->nexthop
), vrf_id_str
);
6572 vty_out(vty
, "%-16s", buf
);
6577 else if (p
->family
== AF_INET6
|| BGP_ATTR_NEXTHOP_AFI_IP6(attr
)) {
6582 json_nexthop_global
= json_object_new_object();
6583 json_object_string_add(
6584 json_nexthop_global
, "ip",
6585 inet_ntop(AF_INET6
, &attr
->mp_nexthop_global
,
6587 json_object_string_add(json_nexthop_global
, "afi",
6589 json_object_string_add(json_nexthop_global
, "scope",
6592 /* We display both LL & GL if both have been
6594 if ((attr
->mp_nexthop_len
== 32)
6595 || (binfo
->peer
->conf_if
)) {
6596 json_nexthop_ll
= json_object_new_object();
6597 json_object_string_add(
6598 json_nexthop_ll
, "ip",
6600 &attr
->mp_nexthop_local
, buf
,
6602 json_object_string_add(json_nexthop_ll
, "afi",
6604 json_object_string_add(json_nexthop_ll
, "scope",
6607 if ((IPV6_ADDR_CMP(&attr
->mp_nexthop_global
,
6608 &attr
->mp_nexthop_local
)
6610 && !attr
->mp_nexthop_prefer_global
)
6611 json_object_boolean_true_add(
6612 json_nexthop_ll
, "used");
6614 json_object_boolean_true_add(
6615 json_nexthop_global
, "used");
6617 json_object_boolean_true_add(
6618 json_nexthop_global
, "used");
6620 /* Display LL if LL/Global both in table unless
6621 * prefer-global is set */
6622 if (((attr
->mp_nexthop_len
== 32)
6623 && !attr
->mp_nexthop_prefer_global
)
6624 || (binfo
->peer
->conf_if
)) {
6625 if (binfo
->peer
->conf_if
) {
6626 len
= vty_out(vty
, "%s",
6627 binfo
->peer
->conf_if
);
6628 len
= 16 - len
; /* len of IPv6
6634 vty_out(vty
, "\n%*s", 36, " ");
6636 vty_out(vty
, "%*s", len
, " ");
6642 &attr
->mp_nexthop_local
,
6648 vty_out(vty
, "\n%*s", 36, " ");
6650 vty_out(vty
, "%*s", len
, " ");
6656 &attr
->mp_nexthop_global
, buf
,
6662 vty_out(vty
, "\n%*s", 36, " ");
6664 vty_out(vty
, "%*s", len
, " ");
6670 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
))
6672 json_object_int_add(json_path
, "med", attr
->med
);
6674 vty_out(vty
, "%10u", attr
->med
);
6675 else if (!json_paths
)
6679 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
))
6681 json_object_int_add(json_path
, "localpref",
6684 vty_out(vty
, "%7u", attr
->local_pref
);
6685 else if (!json_paths
)
6689 json_object_int_add(json_path
, "weight", attr
->weight
);
6691 vty_out(vty
, "%7u ", attr
->weight
);
6695 json_object_string_add(
6696 json_path
, "peerId",
6697 sockunion2str(&binfo
->peer
->su
, buf
, SU_ADDRSTRLEN
));
6703 json_object_string_add(json_path
, "aspath",
6706 aspath_print_vty(vty
, "%s", attr
->aspath
, " ");
6711 json_object_string_add(json_path
, "origin",
6712 bgp_origin_long_str
[attr
->origin
]);
6714 vty_out(vty
, "%s", bgp_origin_str
[attr
->origin
]);
6718 json_object_boolean_true_add(json_path
,
6719 "announceNexthopSelf");
6720 if (nexthop_othervrf
) {
6721 json_object_string_add(json_path
, "nhVrfName",
6724 json_object_int_add(json_path
, "nhVrfId",
6725 ((nexthop_vrfid
== VRF_UNKNOWN
)
6727 : (int)nexthop_vrfid
));
6732 if (json_nexthop_global
|| json_nexthop_ll
) {
6733 json_nexthops
= json_object_new_array();
6735 if (json_nexthop_global
)
6736 json_object_array_add(json_nexthops
,
6737 json_nexthop_global
);
6739 if (json_nexthop_ll
)
6740 json_object_array_add(json_nexthops
,
6743 json_object_object_add(json_path
, "nexthops",
6747 json_object_array_add(json_paths
, json_path
);
6751 /* prints an additional line, indented, with VNC info, if
6753 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_ENCAP
))
6754 rfapi_vty_out_vncinfo(vty
, p
, binfo
, safi
);
6759 /* called from terminal list command */
6760 void route_vty_out_tmp(struct vty
*vty
, struct prefix
*p
, struct attr
*attr
,
6761 safi_t safi
, bool use_json
, json_object
*json_ar
)
6763 json_object
*json_status
= NULL
;
6764 json_object
*json_net
= NULL
;
6766 /* Route status display. */
6768 json_status
= json_object_new_object();
6769 json_net
= json_object_new_object();
6776 /* print prefix and mask */
6778 json_object_string_add(
6779 json_net
, "addrPrefix",
6780 inet_ntop(p
->family
, &p
->u
.prefix
, buff
, BUFSIZ
));
6782 route_vty_out_route(p
, vty
, NULL
);
6784 /* Print attribute */
6787 if (p
->family
== AF_INET
6788 && (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
6789 || safi
== SAFI_EVPN
6790 || !BGP_ATTR_NEXTHOP_AFI_IP6(attr
))) {
6791 if (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
6792 || safi
== SAFI_EVPN
)
6793 json_object_string_add(
6794 json_net
, "nextHop",
6796 attr
->mp_nexthop_global_in
));
6798 json_object_string_add(
6799 json_net
, "nextHop",
6800 inet_ntoa(attr
->nexthop
));
6801 } else if (p
->family
== AF_INET6
6802 || BGP_ATTR_NEXTHOP_AFI_IP6(attr
)) {
6805 json_object_string_add(
6806 json_net
, "netHopGloabal",
6808 &attr
->mp_nexthop_global
, buf
,
6813 & ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
))
6814 json_object_int_add(json_net
, "metric",
6817 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
))
6818 json_object_int_add(json_net
, "localPref",
6821 json_object_int_add(json_net
, "weight", attr
->weight
);
6825 json_object_string_add(json_net
, "asPath",
6829 json_object_string_add(json_net
, "bgpOriginCode",
6830 bgp_origin_str
[attr
->origin
]);
6832 if (p
->family
== AF_INET
6833 && (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
6834 || safi
== SAFI_EVPN
6835 || !BGP_ATTR_NEXTHOP_AFI_IP6(attr
))) {
6836 if (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
6837 || safi
== SAFI_EVPN
)
6838 vty_out(vty
, "%-16s",
6840 attr
->mp_nexthop_global_in
));
6842 vty_out(vty
, "%-16s",
6843 inet_ntoa(attr
->nexthop
));
6844 } else if (p
->family
== AF_INET6
6845 || BGP_ATTR_NEXTHOP_AFI_IP6(attr
)) {
6852 &attr
->mp_nexthop_global
, buf
,
6856 vty_out(vty
, "\n%*s", 36, " ");
6858 vty_out(vty
, "%*s", len
, " ");
6861 & ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
))
6862 vty_out(vty
, "%10u", attr
->med
);
6866 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
))
6867 vty_out(vty
, "%7u", attr
->local_pref
);
6871 vty_out(vty
, "%7u ", attr
->weight
);
6875 aspath_print_vty(vty
, "%s", attr
->aspath
, " ");
6878 vty_out(vty
, "%s", bgp_origin_str
[attr
->origin
]);
6882 json_object_boolean_true_add(json_status
, "*");
6883 json_object_boolean_true_add(json_status
, ">");
6884 json_object_object_add(json_net
, "appliedStatusSymbols",
6886 char buf_cut
[BUFSIZ
];
6887 json_object_object_add(
6889 inet_ntop(p
->family
, &p
->u
.prefix
, buf_cut
, BUFSIZ
),
6895 void route_vty_out_tag(struct vty
*vty
, struct prefix
*p
,
6896 struct bgp_info
*binfo
, int display
, safi_t safi
,
6899 json_object
*json_out
= NULL
;
6901 mpls_label_t label
= MPLS_INVALID_LABEL
;
6907 json_out
= json_object_new_object();
6909 /* short status lead text */
6910 route_vty_short_status_out(vty
, binfo
, json_out
);
6912 /* print prefix and mask */
6915 route_vty_out_route(p
, vty
, NULL
);
6917 vty_out(vty
, "%*s", 17, " ");
6920 /* Print attribute */
6923 if (((p
->family
== AF_INET
)
6924 && ((safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
)))
6925 || (safi
== SAFI_EVPN
&& !BGP_ATTR_NEXTHOP_AFI_IP6(attr
))
6926 || (!BGP_ATTR_NEXTHOP_AFI_IP6(attr
))) {
6927 if (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
6928 || safi
== SAFI_EVPN
) {
6930 json_object_string_add(
6931 json_out
, "mpNexthopGlobalIn",
6933 attr
->mp_nexthop_global_in
));
6935 vty_out(vty
, "%-16s",
6937 attr
->mp_nexthop_global_in
));
6940 json_object_string_add(
6941 json_out
, "nexthop",
6942 inet_ntoa(attr
->nexthop
));
6944 vty_out(vty
, "%-16s",
6945 inet_ntoa(attr
->nexthop
));
6947 } else if (((p
->family
== AF_INET6
)
6948 && ((safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
)))
6949 || (safi
== SAFI_EVPN
6950 && BGP_ATTR_NEXTHOP_AFI_IP6(attr
))
6951 || (BGP_ATTR_NEXTHOP_AFI_IP6(attr
))) {
6955 if (attr
->mp_nexthop_len
6956 == BGP_ATTR_NHLEN_IPV6_GLOBAL
) {
6958 json_object_string_add(
6959 json_out
, "mpNexthopGlobalIn",
6962 &attr
->mp_nexthop_global
,
6963 buf_a
, sizeof(buf_a
)));
6968 &attr
->mp_nexthop_global
,
6969 buf_a
, sizeof(buf_a
)));
6970 } else if (attr
->mp_nexthop_len
6971 == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL
) {
6974 &attr
->mp_nexthop_global
,
6975 buf_a
, sizeof(buf_a
));
6977 &attr
->mp_nexthop_local
,
6978 buf_b
, sizeof(buf_b
));
6979 sprintf(buf_c
, "%s(%s)", buf_a
, buf_b
);
6980 json_object_string_add(
6982 "mpNexthopGlobalLocal", buf_c
);
6984 vty_out(vty
, "%s(%s)",
6987 &attr
->mp_nexthop_global
,
6988 buf_a
, sizeof(buf_a
)),
6991 &attr
->mp_nexthop_local
,
6992 buf_b
, sizeof(buf_b
)));
6997 label
= decode_label(&binfo
->extra
->label
[0]);
6999 if (bgp_is_valid_label(&label
)) {
7001 json_object_int_add(json_out
, "notag", label
);
7002 json_object_array_add(json
, json_out
);
7004 vty_out(vty
, "notag/%d", label
);
7010 void route_vty_out_overlay(struct vty
*vty
, struct prefix
*p
,
7011 struct bgp_info
*binfo
, int display
,
7012 json_object
*json_paths
)
7016 json_object
*json_path
= NULL
;
7019 json_path
= json_object_new_object();
7024 /* short status lead text */
7025 route_vty_short_status_out(vty
, binfo
, json_path
);
7027 /* print prefix and mask */
7029 route_vty_out_route(p
, vty
, NULL
);
7031 vty_out(vty
, "%*s", 17, " ");
7033 /* Print attribute */
7037 int af
= NEXTHOP_FAMILY(attr
->mp_nexthop_len
);
7041 vty_out(vty
, "%-16s",
7042 inet_ntop(af
, &attr
->mp_nexthop_global_in
, buf
,
7046 vty_out(vty
, "%s(%s)",
7047 inet_ntop(af
, &attr
->mp_nexthop_global
, buf
,
7049 inet_ntop(af
, &attr
->mp_nexthop_local
, buf1
,
7056 char *str
= esi2str(&(attr
->evpn_overlay
.eth_s_id
));
7058 vty_out(vty
, "%s", str
);
7059 XFREE(MTYPE_TMP
, str
);
7061 if (is_evpn_prefix_ipaddr_v4((struct prefix_evpn
*)p
)) {
7063 inet_ntoa(attr
->evpn_overlay
.gw_ip
.ipv4
));
7064 } else if (is_evpn_prefix_ipaddr_v6((struct prefix_evpn
*)p
)) {
7067 &(attr
->evpn_overlay
.gw_ip
.ipv6
), buf
,
7070 if (attr
->ecommunity
) {
7072 struct ecommunity_val
*routermac
= ecommunity_lookup(
7073 attr
->ecommunity
, ECOMMUNITY_ENCODE_EVPN
,
7074 ECOMMUNITY_EVPN_SUBTYPE_ROUTERMAC
);
7076 mac
= ecom_mac2str((char *)routermac
->val
);
7078 vty_out(vty
, "/%s", (char *)mac
);
7079 XFREE(MTYPE_TMP
, mac
);
7087 /* dampening route */
7088 static void damp_route_vty_out(struct vty
*vty
, struct prefix
*p
,
7089 struct bgp_info
*binfo
, int display
, safi_t safi
,
7090 bool use_json
, json_object
*json
)
7094 char timebuf
[BGP_UPTIME_LEN
];
7096 /* short status lead text */
7097 route_vty_short_status_out(vty
, binfo
, json
);
7099 /* print prefix and mask */
7102 route_vty_out_route(p
, vty
, NULL
);
7104 vty_out(vty
, "%*s", 17, " ");
7107 len
= vty_out(vty
, "%s", binfo
->peer
->host
);
7111 vty_out(vty
, "\n%*s", 34, " ");
7114 json_object_int_add(json
, "peerHost", len
);
7116 vty_out(vty
, "%*s", len
, " ");
7120 bgp_damp_reuse_time_vty(vty
, binfo
, timebuf
, BGP_UPTIME_LEN
,
7123 vty_out(vty
, "%s ", bgp_damp_reuse_time_vty(vty
, binfo
, timebuf
,
7127 /* Print attribute */
7133 json_object_string_add(json
, "asPath",
7136 aspath_print_vty(vty
, "%s", attr
->aspath
, " ");
7141 json_object_string_add(json
, "origin",
7142 bgp_origin_str
[attr
->origin
]);
7144 vty_out(vty
, "%s", bgp_origin_str
[attr
->origin
]);
7151 static void flap_route_vty_out(struct vty
*vty
, struct prefix
*p
,
7152 struct bgp_info
*binfo
, int display
, safi_t safi
,
7153 bool use_json
, json_object
*json
)
7156 struct bgp_damp_info
*bdi
;
7157 char timebuf
[BGP_UPTIME_LEN
];
7163 bdi
= binfo
->extra
->damp_info
;
7165 /* short status lead text */
7166 route_vty_short_status_out(vty
, binfo
, json
);
7168 /* print prefix and mask */
7171 route_vty_out_route(p
, vty
, NULL
);
7173 vty_out(vty
, "%*s", 17, " ");
7176 len
= vty_out(vty
, "%s", binfo
->peer
->host
);
7180 vty_out(vty
, "\n%*s", 33, " ");
7183 json_object_int_add(json
, "peerHost", len
);
7185 vty_out(vty
, "%*s", len
, " ");
7188 len
= vty_out(vty
, "%d", bdi
->flap
);
7195 json_object_int_add(json
, "bdiFlap", len
);
7197 vty_out(vty
, "%*s", len
, " ");
7201 peer_uptime(bdi
->start_time
, timebuf
, BGP_UPTIME_LEN
, use_json
,
7204 vty_out(vty
, "%s ", peer_uptime(bdi
->start_time
, timebuf
,
7205 BGP_UPTIME_LEN
, 0, NULL
));
7207 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_DAMPED
)
7208 && !CHECK_FLAG(binfo
->flags
, BGP_INFO_HISTORY
)) {
7210 bgp_damp_reuse_time_vty(vty
, binfo
, timebuf
,
7211 BGP_UPTIME_LEN
, use_json
, json
);
7214 bgp_damp_reuse_time_vty(vty
, binfo
, timebuf
,
7219 vty_out(vty
, "%*s ", 8, " ");
7222 /* Print attribute */
7228 json_object_string_add(json
, "asPath",
7231 aspath_print_vty(vty
, "%s", attr
->aspath
, " ");
7236 json_object_string_add(json
, "origin",
7237 bgp_origin_str
[attr
->origin
]);
7239 vty_out(vty
, "%s", bgp_origin_str
[attr
->origin
]);
7245 static void route_vty_out_advertised_to(struct vty
*vty
, struct peer
*peer
,
7246 int *first
, const char *header
,
7247 json_object
*json_adv_to
)
7249 char buf1
[INET6_ADDRSTRLEN
];
7250 json_object
*json_peer
= NULL
;
7253 /* 'advertised-to' is a dictionary of peers we have advertised
7255 * prefix too. The key is the peer's IP or swpX, the value is
7257 * hostname if we know it and "" if not.
7259 json_peer
= json_object_new_object();
7262 json_object_string_add(json_peer
, "hostname",
7266 json_object_object_add(json_adv_to
, peer
->conf_if
,
7269 json_object_object_add(
7271 sockunion2str(&peer
->su
, buf1
, SU_ADDRSTRLEN
),
7275 vty_out(vty
, "%s", header
);
7280 && bgp_flag_check(peer
->bgp
, BGP_FLAG_SHOW_HOSTNAME
)) {
7282 vty_out(vty
, " %s(%s)", peer
->hostname
,
7285 vty_out(vty
, " %s(%s)", peer
->hostname
,
7286 sockunion2str(&peer
->su
, buf1
,
7290 vty_out(vty
, " %s", peer
->conf_if
);
7293 sockunion2str(&peer
->su
, buf1
,
7299 void route_vty_out_detail(struct vty
*vty
, struct bgp
*bgp
, struct prefix
*p
,
7300 struct bgp_info
*binfo
, afi_t afi
, safi_t safi
,
7301 json_object
*json_paths
)
7303 char buf
[INET6_ADDRSTRLEN
];
7305 char buf2
[EVPN_ROUTE_STRLEN
];
7307 int sockunion_vty_out(struct vty
*, union sockunion
*);
7309 json_object
*json_bestpath
= NULL
;
7310 json_object
*json_cluster_list
= NULL
;
7311 json_object
*json_cluster_list_list
= NULL
;
7312 json_object
*json_ext_community
= NULL
;
7313 json_object
*json_last_update
= NULL
;
7314 json_object
*json_pmsi
= NULL
;
7315 json_object
*json_nexthop_global
= NULL
;
7316 json_object
*json_nexthop_ll
= NULL
;
7317 json_object
*json_nexthops
= NULL
;
7318 json_object
*json_path
= NULL
;
7319 json_object
*json_peer
= NULL
;
7320 json_object
*json_string
= NULL
;
7321 json_object
*json_adv_to
= NULL
;
7323 struct listnode
*node
, *nnode
;
7325 int addpath_capable
;
7327 unsigned int first_as
;
7328 bool nexthop_self
= CHECK_FLAG(binfo
->flags
, BGP_INFO_ANNC_NH_SELF
)
7333 json_path
= json_object_new_object();
7334 json_peer
= json_object_new_object();
7335 json_nexthop_global
= json_object_new_object();
7338 if (!json_paths
&& safi
== SAFI_EVPN
) {
7341 bgp_evpn_route2str((struct prefix_evpn
*)p
, buf2
, sizeof(buf2
));
7342 vty_out(vty
, " Route %s", buf2
);
7344 if (binfo
->extra
&& binfo
->extra
->num_labels
) {
7345 bgp_evpn_label2str(binfo
->extra
->label
,
7346 binfo
->extra
->num_labels
, tag_buf
,
7348 vty_out(vty
, " VNI %s", tag_buf
);
7351 if (binfo
->extra
&& binfo
->extra
->parent
) {
7352 struct bgp_info
*parent_ri
;
7353 struct bgp_node
*rn
, *prn
;
7355 parent_ri
= (struct bgp_info
*)binfo
->extra
->parent
;
7356 rn
= parent_ri
->net
;
7357 if (rn
&& rn
->prn
) {
7359 vty_out(vty
, " Imported from %s:%s\n",
7361 (struct prefix_rd
*)&prn
->p
,
7362 buf1
, sizeof(buf1
)),
7371 /* Line1 display AS-path, Aggregator */
7374 if (!attr
->aspath
->json
)
7375 aspath_str_update(attr
->aspath
, true);
7376 json_object_lock(attr
->aspath
->json
);
7377 json_object_object_add(json_path
, "aspath",
7378 attr
->aspath
->json
);
7380 if (attr
->aspath
->segments
)
7381 aspath_print_vty(vty
, " %s",
7384 vty_out(vty
, " Local");
7388 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_REMOVED
)) {
7390 json_object_boolean_true_add(json_path
,
7393 vty_out(vty
, ", (removed)");
7396 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_STALE
)) {
7398 json_object_boolean_true_add(json_path
,
7401 vty_out(vty
, ", (stale)");
7404 if (CHECK_FLAG(attr
->flag
,
7405 ATTR_FLAG_BIT(BGP_ATTR_AGGREGATOR
))) {
7407 json_object_int_add(json_path
, "aggregatorAs",
7408 attr
->aggregator_as
);
7409 json_object_string_add(
7410 json_path
, "aggregatorId",
7411 inet_ntoa(attr
->aggregator_addr
));
7413 vty_out(vty
, ", (aggregated by %u %s)",
7414 attr
->aggregator_as
,
7415 inet_ntoa(attr
->aggregator_addr
));
7419 if (CHECK_FLAG(binfo
->peer
->af_flags
[afi
][safi
],
7420 PEER_FLAG_REFLECTOR_CLIENT
)) {
7422 json_object_boolean_true_add(
7423 json_path
, "rxedFromRrClient");
7425 vty_out(vty
, ", (Received from a RR-client)");
7428 if (CHECK_FLAG(binfo
->peer
->af_flags
[afi
][safi
],
7429 PEER_FLAG_RSERVER_CLIENT
)) {
7431 json_object_boolean_true_add(
7432 json_path
, "rxedFromRsClient");
7434 vty_out(vty
, ", (Received from a RS-client)");
7437 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_HISTORY
)) {
7439 json_object_boolean_true_add(
7440 json_path
, "dampeningHistoryEntry");
7442 vty_out(vty
, ", (history entry)");
7443 } else if (CHECK_FLAG(binfo
->flags
, BGP_INFO_DAMPED
)) {
7445 json_object_boolean_true_add(
7446 json_path
, "dampeningSuppressed");
7448 vty_out(vty
, ", (suppressed due to dampening)");
7454 /* Line2 display Next-hop, Neighbor, Router-id */
7455 /* Display the nexthop */
7456 if ((p
->family
== AF_INET
|| p
->family
== AF_ETHERNET
7457 || p
->family
== AF_EVPN
)
7458 && (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
7459 || safi
== SAFI_EVPN
7460 || !BGP_ATTR_NEXTHOP_AFI_IP6(attr
))) {
7461 if (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
7462 || safi
== SAFI_EVPN
) {
7464 json_object_string_add(
7465 json_nexthop_global
, "ip",
7467 attr
->mp_nexthop_global_in
));
7471 attr
->mp_nexthop_global_in
));
7474 json_object_string_add(
7475 json_nexthop_global
, "ip",
7476 inet_ntoa(attr
->nexthop
));
7479 inet_ntoa(attr
->nexthop
));
7483 json_object_string_add(json_nexthop_global
,
7487 json_object_string_add(
7488 json_nexthop_global
, "ip",
7490 &attr
->mp_nexthop_global
, buf
,
7492 json_object_string_add(json_nexthop_global
,
7494 json_object_string_add(json_nexthop_global
,
7499 &attr
->mp_nexthop_global
, buf
,
7504 /* Display the IGP cost or 'inaccessible' */
7505 if (!CHECK_FLAG(binfo
->flags
, BGP_INFO_VALID
)) {
7507 json_object_boolean_false_add(
7508 json_nexthop_global
, "accessible");
7510 vty_out(vty
, " (inaccessible)");
7512 if (binfo
->extra
&& binfo
->extra
->igpmetric
) {
7514 json_object_int_add(
7515 json_nexthop_global
, "metric",
7516 binfo
->extra
->igpmetric
);
7518 vty_out(vty
, " (metric %u)",
7519 binfo
->extra
->igpmetric
);
7522 /* IGP cost is 0, display this only for json */
7525 json_object_int_add(json_nexthop_global
,
7530 json_object_boolean_true_add(
7531 json_nexthop_global
, "accessible");
7534 /* Display peer "from" output */
7535 /* This path was originated locally */
7536 if (binfo
->peer
== bgp
->peer_self
) {
7538 if (safi
== SAFI_EVPN
7539 || (p
->family
== AF_INET
7540 && !BGP_ATTR_NEXTHOP_AFI_IP6(attr
))) {
7542 json_object_string_add(
7543 json_peer
, "peerId", "0.0.0.0");
7545 vty_out(vty
, " from 0.0.0.0 ");
7548 json_object_string_add(json_peer
,
7551 vty_out(vty
, " from :: ");
7555 json_object_string_add(
7556 json_peer
, "routerId",
7557 inet_ntoa(bgp
->router_id
));
7559 vty_out(vty
, "(%s)", inet_ntoa(bgp
->router_id
));
7562 /* We RXed this path from one of our peers */
7566 json_object_string_add(
7567 json_peer
, "peerId",
7568 sockunion2str(&binfo
->peer
->su
, buf
,
7570 json_object_string_add(
7571 json_peer
, "routerId",
7573 &binfo
->peer
->remote_id
, buf1
,
7576 if (binfo
->peer
->hostname
)
7577 json_object_string_add(
7578 json_peer
, "hostname",
7579 binfo
->peer
->hostname
);
7581 if (binfo
->peer
->domainname
)
7582 json_object_string_add(
7583 json_peer
, "domainname",
7584 binfo
->peer
->domainname
);
7586 if (binfo
->peer
->conf_if
)
7587 json_object_string_add(
7588 json_peer
, "interface",
7589 binfo
->peer
->conf_if
);
7591 if (binfo
->peer
->conf_if
) {
7592 if (binfo
->peer
->hostname
7595 BGP_FLAG_SHOW_HOSTNAME
))
7596 vty_out(vty
, " from %s(%s)",
7597 binfo
->peer
->hostname
,
7598 binfo
->peer
->conf_if
);
7600 vty_out(vty
, " from %s",
7601 binfo
->peer
->conf_if
);
7603 if (binfo
->peer
->hostname
7606 BGP_FLAG_SHOW_HOSTNAME
))
7607 vty_out(vty
, " from %s(%s)",
7608 binfo
->peer
->hostname
,
7611 vty_out(vty
, " from %s",
7620 & ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID
))
7621 vty_out(vty
, " (%s)",
7622 inet_ntoa(attr
->originator_id
));
7624 vty_out(vty
, " (%s)",
7627 &binfo
->peer
->remote_id
,
7628 buf1
, sizeof(buf1
)));
7633 * Note when vrfid of nexthop is different from that of prefix
7635 if (binfo
->extra
&& binfo
->extra
->bgp_orig
) {
7636 vrf_id_t nexthop_vrfid
= binfo
->extra
->bgp_orig
->vrf_id
;
7641 if (binfo
->extra
->bgp_orig
->inst_type
==
7642 BGP_INSTANCE_TYPE_DEFAULT
)
7646 vn
= binfo
->extra
->bgp_orig
->name
;
7648 json_object_string_add(json_path
, "nhVrfName",
7651 if (nexthop_vrfid
== VRF_UNKNOWN
) {
7652 json_object_int_add(json_path
,
7655 json_object_int_add(json_path
,
7656 "nhVrfId", (int)nexthop_vrfid
);
7659 if (nexthop_vrfid
== VRF_UNKNOWN
)
7660 vty_out(vty
, " vrf ?");
7662 vty_out(vty
, " vrf %u", nexthop_vrfid
);
7668 json_object_boolean_true_add(json_path
,
7669 "announceNexthopSelf");
7671 vty_out(vty
, " announce-nh-self");
7678 /* display the link-local nexthop */
7679 if (attr
->mp_nexthop_len
== BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL
) {
7681 json_nexthop_ll
= json_object_new_object();
7682 json_object_string_add(
7683 json_nexthop_ll
, "ip",
7685 &attr
->mp_nexthop_local
, buf
,
7687 json_object_string_add(json_nexthop_ll
, "afi",
7689 json_object_string_add(json_nexthop_ll
, "scope",
7692 json_object_boolean_true_add(json_nexthop_ll
,
7695 if (!attr
->mp_nexthop_prefer_global
)
7696 json_object_boolean_true_add(
7697 json_nexthop_ll
, "used");
7699 json_object_boolean_true_add(
7700 json_nexthop_global
, "used");
7702 vty_out(vty
, " (%s) %s\n",
7704 &attr
->mp_nexthop_local
, buf
,
7706 attr
->mp_nexthop_prefer_global
7711 /* If we do not have a link-local nexthop then we must flag the
7715 json_object_boolean_true_add(
7716 json_nexthop_global
, "used");
7719 /* Line 3 display Origin, Med, Locpref, Weight, Tag, valid,
7720 * Int/Ext/Local, Atomic, best */
7722 json_object_string_add(
7723 json_path
, "origin",
7724 bgp_origin_long_str
[attr
->origin
]);
7726 vty_out(vty
, " Origin %s",
7727 bgp_origin_long_str
[attr
->origin
]);
7729 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
)) {
7731 json_object_int_add(json_path
, "med",
7734 vty_out(vty
, ", metric %u", attr
->med
);
7737 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
)) {
7739 json_object_int_add(json_path
, "localpref",
7742 vty_out(vty
, ", localpref %u",
7746 if (attr
->weight
!= 0) {
7748 json_object_int_add(json_path
, "weight",
7751 vty_out(vty
, ", weight %u", attr
->weight
);
7754 if (attr
->tag
!= 0) {
7756 json_object_int_add(json_path
, "tag",
7759 vty_out(vty
, ", tag %" ROUTE_TAG_PRI
,
7763 if (!CHECK_FLAG(binfo
->flags
, BGP_INFO_VALID
)) {
7765 json_object_boolean_false_add(json_path
,
7768 vty_out(vty
, ", invalid");
7769 } else if (!CHECK_FLAG(binfo
->flags
, BGP_INFO_HISTORY
)) {
7771 json_object_boolean_true_add(json_path
,
7774 vty_out(vty
, ", valid");
7777 if (binfo
->peer
!= bgp
->peer_self
) {
7778 if (binfo
->peer
->as
== binfo
->peer
->local_as
) {
7779 if (CHECK_FLAG(bgp
->config
,
7780 BGP_CONFIG_CONFEDERATION
)) {
7782 json_object_string_add(
7787 ", confed-internal");
7790 json_object_string_add(
7794 vty_out(vty
, ", internal");
7797 if (bgp_confederation_peers_check(
7798 bgp
, binfo
->peer
->as
)) {
7800 json_object_string_add(
7805 ", confed-external");
7808 json_object_string_add(
7812 vty_out(vty
, ", external");
7815 } else if (binfo
->sub_type
== BGP_ROUTE_AGGREGATE
) {
7817 json_object_boolean_true_add(json_path
,
7819 json_object_boolean_true_add(json_path
,
7822 vty_out(vty
, ", aggregated, local");
7824 } else if (binfo
->type
!= ZEBRA_ROUTE_BGP
) {
7826 json_object_boolean_true_add(json_path
,
7829 vty_out(vty
, ", sourced");
7832 json_object_boolean_true_add(json_path
,
7834 json_object_boolean_true_add(json_path
,
7837 vty_out(vty
, ", sourced, local");
7841 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_ATOMIC_AGGREGATE
)) {
7843 json_object_boolean_true_add(json_path
,
7846 vty_out(vty
, ", atomic-aggregate");
7849 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_MULTIPATH
)
7850 || (CHECK_FLAG(binfo
->flags
, BGP_INFO_SELECTED
)
7851 && bgp_info_mpath_count(binfo
))) {
7853 json_object_boolean_true_add(json_path
,
7856 vty_out(vty
, ", multipath");
7859 // Mark the bestpath(s)
7860 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_DMED_SELECTED
)) {
7861 first_as
= aspath_get_first_as(attr
->aspath
);
7866 json_object_new_object();
7867 json_object_int_add(json_bestpath
,
7868 "bestpathFromAs", first_as
);
7871 vty_out(vty
, ", bestpath-from-AS %u",
7875 ", bestpath-from-AS Local");
7879 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_SELECTED
)) {
7883 json_object_new_object();
7884 json_object_boolean_true_add(json_bestpath
,
7887 vty_out(vty
, ", best");
7891 json_object_object_add(json_path
, "bestpath",
7897 /* Line 4 display Community */
7898 if (attr
->community
) {
7900 if (!attr
->community
->json
)
7901 community_str(attr
->community
, true);
7902 json_object_lock(attr
->community
->json
);
7903 json_object_object_add(json_path
, "community",
7904 attr
->community
->json
);
7906 vty_out(vty
, " Community: %s\n",
7907 attr
->community
->str
);
7911 /* Line 5 display Extended-community */
7912 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_EXT_COMMUNITIES
)) {
7914 json_ext_community
= json_object_new_object();
7915 json_object_string_add(json_ext_community
,
7917 attr
->ecommunity
->str
);
7918 json_object_object_add(json_path
,
7919 "extendedCommunity",
7920 json_ext_community
);
7922 vty_out(vty
, " Extended Community: %s\n",
7923 attr
->ecommunity
->str
);
7927 /* Line 6 display Large community */
7928 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_LARGE_COMMUNITIES
)) {
7930 if (!attr
->lcommunity
->json
)
7931 lcommunity_str(attr
->lcommunity
, true);
7932 json_object_lock(attr
->lcommunity
->json
);
7933 json_object_object_add(json_path
,
7935 attr
->lcommunity
->json
);
7937 vty_out(vty
, " Large Community: %s\n",
7938 attr
->lcommunity
->str
);
7942 /* Line 7 display Originator, Cluster-id */
7943 if ((attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID
))
7944 || (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_CLUSTER_LIST
))) {
7946 & ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID
)) {
7948 json_object_string_add(
7949 json_path
, "originatorId",
7950 inet_ntoa(attr
->originator_id
));
7952 vty_out(vty
, " Originator: %s",
7953 inet_ntoa(attr
->originator_id
));
7956 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_CLUSTER_LIST
)) {
7961 json_object_new_object();
7962 json_cluster_list_list
=
7963 json_object_new_array();
7966 i
< attr
->cluster
->length
/ 4;
7968 json_string
= json_object_new_string(
7972 json_object_array_add(
7973 json_cluster_list_list
,
7977 /* struct cluster_list does not have
7979 * aspath and community do. Add this
7982 json_object_string_add(json_cluster_list,
7983 "string", attr->cluster->str);
7985 json_object_object_add(
7986 json_cluster_list
, "list",
7987 json_cluster_list_list
);
7988 json_object_object_add(
7989 json_path
, "clusterList",
7992 vty_out(vty
, ", Cluster list: ");
7995 i
< attr
->cluster
->length
/ 4;
8009 if (binfo
->extra
&& binfo
->extra
->damp_info
)
8010 bgp_damp_info_vty(vty
, binfo
, json_path
);
8013 if (binfo
->extra
&& bgp_is_valid_label(&binfo
->extra
->label
[0])
8014 && safi
!= SAFI_EVPN
) {
8015 mpls_label_t label
=
8016 label_pton(&binfo
->extra
->label
[0]);
8018 json_object_int_add(json_path
, "remoteLabel",
8021 vty_out(vty
, " Remote label: %d\n", label
);
8025 if (attr
->label_index
!= BGP_INVALID_LABEL_INDEX
) {
8027 json_object_int_add(json_path
, "labelIndex",
8030 vty_out(vty
, " Label Index: %d\n",
8034 /* Line 8 display Addpath IDs */
8035 if (binfo
->addpath_rx_id
|| binfo
->addpath_tx_id
) {
8037 json_object_int_add(json_path
, "addpathRxId",
8038 binfo
->addpath_rx_id
);
8039 json_object_int_add(json_path
, "addpathTxId",
8040 binfo
->addpath_tx_id
);
8042 vty_out(vty
, " AddPath ID: RX %u, TX %u\n",
8043 binfo
->addpath_rx_id
,
8044 binfo
->addpath_tx_id
);
8048 /* If we used addpath to TX a non-bestpath we need to display
8049 * "Advertised to" on a path-by-path basis */
8050 if (bgp
->addpath_tx_used
[afi
][safi
]) {
8053 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
8055 bgp_addpath_encode_tx(peer
, afi
, safi
);
8056 has_adj
= bgp_adj_out_lookup(
8057 peer
, binfo
->net
, binfo
->addpath_tx_id
);
8059 if ((addpath_capable
&& has_adj
)
8060 || (!addpath_capable
&& has_adj
8061 && CHECK_FLAG(binfo
->flags
,
8062 BGP_INFO_SELECTED
))) {
8063 if (json_path
&& !json_adv_to
)
8065 json_object_new_object();
8067 route_vty_out_advertised_to(
8076 json_object_object_add(json_path
,
8087 /* Line 9 display Uptime */
8088 tbuf
= time(NULL
) - (bgp_clock() - binfo
->uptime
);
8090 json_last_update
= json_object_new_object();
8091 json_object_int_add(json_last_update
, "epoch", tbuf
);
8092 json_object_string_add(json_last_update
, "string",
8094 json_object_object_add(json_path
, "lastUpdate",
8097 vty_out(vty
, " Last update: %s", ctime(&tbuf
));
8099 /* Line 10 display PMSI tunnel attribute, if present */
8100 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_PMSI_TUNNEL
)) {
8101 const char *str
= lookup_msg(bgp_pmsi_tnltype_str
,
8102 attr
->pmsi_tnl_type
,
8103 PMSI_TNLTYPE_STR_DEFAULT
);
8106 json_pmsi
= json_object_new_object();
8107 json_object_string_add(json_pmsi
,
8109 json_object_object_add(json_path
, "pmsi",
8112 vty_out(vty
, " PMSI Tunnel Type: %s\n",
8118 /* We've constructed the json object for this path, add it to the json
8122 if (json_nexthop_global
|| json_nexthop_ll
) {
8123 json_nexthops
= json_object_new_array();
8125 if (json_nexthop_global
)
8126 json_object_array_add(json_nexthops
,
8127 json_nexthop_global
);
8129 if (json_nexthop_ll
)
8130 json_object_array_add(json_nexthops
,
8133 json_object_object_add(json_path
, "nexthops",
8137 json_object_object_add(json_path
, "peer", json_peer
);
8138 json_object_array_add(json_paths
, json_path
);
8143 #define BGP_SHOW_HEADER_CSV "Flags, Network, Next Hop, Metric, LocPrf, Weight, Path"
8144 #define BGP_SHOW_DAMP_HEADER " Network From Reuse Path\n"
8145 #define BGP_SHOW_FLAP_HEADER " Network From Flaps Duration Reuse Path\n"
8147 static int bgp_show_prefix_list(struct vty
*vty
, struct bgp
*bgp
,
8148 const char *prefix_list_str
, afi_t afi
,
8149 safi_t safi
, enum bgp_show_type type
);
8150 static int bgp_show_filter_list(struct vty
*vty
, struct bgp
*bgp
,
8151 const char *filter
, afi_t afi
, safi_t safi
,
8152 enum bgp_show_type type
);
8153 static int bgp_show_route_map(struct vty
*vty
, struct bgp
*bgp
,
8154 const char *rmap_str
, afi_t afi
, safi_t safi
,
8155 enum bgp_show_type type
);
8156 static int bgp_show_community_list(struct vty
*vty
, struct bgp
*bgp
,
8157 const char *com
, int exact
, afi_t afi
,
8159 static int bgp_show_prefix_longer(struct vty
*vty
, struct bgp
*bgp
,
8160 const char *prefix
, afi_t afi
, safi_t safi
,
8161 enum bgp_show_type type
);
8162 static int bgp_show_regexp(struct vty
*vty
, struct bgp
*bgp
, const char *regstr
,
8163 afi_t afi
, safi_t safi
, enum bgp_show_type type
);
8164 static int bgp_show_community(struct vty
*vty
, struct bgp
*bgp
,
8165 const char *comstr
, int exact
, afi_t afi
,
8166 safi_t safi
, bool use_json
);
8169 static int bgp_show_table(struct vty
*vty
, struct bgp
*bgp
, safi_t safi
,
8170 struct bgp_table
*table
, enum bgp_show_type type
,
8171 void *output_arg
, bool use_json
, char *rd
,
8172 int is_last
, unsigned long *output_cum
,
8173 unsigned long *total_cum
,
8174 unsigned long *json_header_depth
)
8176 struct bgp_info
*ri
;
8177 struct bgp_node
*rn
;
8180 unsigned long output_count
= 0;
8181 unsigned long total_count
= 0;
8185 json_object
*json_paths
= NULL
;
8188 if (output_cum
&& *output_cum
!= 0)
8191 if (use_json
&& !*json_header_depth
) {
8193 "{\n \"vrfId\": %d,\n \"vrfName\": \"%s\",\n \"tableVersion\": %" PRId64
8194 ",\n \"routerId\": \"%s\",\n \"routes\": { ",
8195 bgp
->vrf_id
== VRF_UNKNOWN
? -1 : (int)bgp
->vrf_id
,
8196 bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
? "Default"
8198 table
->version
, inet_ntoa(bgp
->router_id
));
8199 *json_header_depth
= 2;
8201 vty_out(vty
, " \"routeDistinguishers\" : {");
8202 ++*json_header_depth
;
8206 if (use_json
&& rd
) {
8207 vty_out(vty
, " \"%s\" : { ", rd
);
8210 /* Start processing of routes. */
8211 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
)) {
8212 if (rn
->info
== NULL
)
8217 json_paths
= json_object_new_array();
8221 for (ri
= rn
->info
; ri
; ri
= ri
->next
) {
8223 if (type
== bgp_show_type_flap_statistics
8224 || type
== bgp_show_type_flap_neighbor
8225 || type
== bgp_show_type_dampend_paths
8226 || type
== bgp_show_type_damp_neighbor
) {
8227 if (!(ri
->extra
&& ri
->extra
->damp_info
))
8230 if (type
== bgp_show_type_regexp
) {
8231 regex_t
*regex
= output_arg
;
8233 if (bgp_regexec(regex
, ri
->attr
->aspath
)
8237 if (type
== bgp_show_type_prefix_list
) {
8238 struct prefix_list
*plist
= output_arg
;
8240 if (prefix_list_apply(plist
, &rn
->p
)
8244 if (type
== bgp_show_type_filter_list
) {
8245 struct as_list
*as_list
= output_arg
;
8247 if (as_list_apply(as_list
, ri
->attr
->aspath
)
8248 != AS_FILTER_PERMIT
)
8251 if (type
== bgp_show_type_route_map
) {
8252 struct route_map
*rmap
= output_arg
;
8253 struct bgp_info binfo
;
8254 struct attr dummy_attr
;
8257 bgp_attr_dup(&dummy_attr
, ri
->attr
);
8259 binfo
.peer
= ri
->peer
;
8260 binfo
.attr
= &dummy_attr
;
8262 ret
= route_map_apply(rmap
, &rn
->p
, RMAP_BGP
,
8264 if (ret
== RMAP_DENYMATCH
)
8267 if (type
== bgp_show_type_neighbor
8268 || type
== bgp_show_type_flap_neighbor
8269 || type
== bgp_show_type_damp_neighbor
) {
8270 union sockunion
*su
= output_arg
;
8272 if (ri
->peer
== NULL
8273 || ri
->peer
->su_remote
== NULL
8274 || !sockunion_same(ri
->peer
->su_remote
, su
))
8277 if (type
== bgp_show_type_cidr_only
) {
8278 uint32_t destination
;
8280 destination
= ntohl(rn
->p
.u
.prefix4
.s_addr
);
8281 if (IN_CLASSC(destination
)
8282 && rn
->p
.prefixlen
== 24)
8284 if (IN_CLASSB(destination
)
8285 && rn
->p
.prefixlen
== 16)
8287 if (IN_CLASSA(destination
)
8288 && rn
->p
.prefixlen
== 8)
8291 if (type
== bgp_show_type_prefix_longer
) {
8293 if (!prefix_match(p
, &rn
->p
))
8296 if (type
== bgp_show_type_community_all
) {
8297 if (!ri
->attr
->community
)
8300 if (type
== bgp_show_type_community
) {
8301 struct community
*com
= output_arg
;
8303 if (!ri
->attr
->community
8304 || !community_match(ri
->attr
->community
,
8308 if (type
== bgp_show_type_community_exact
) {
8309 struct community
*com
= output_arg
;
8311 if (!ri
->attr
->community
8312 || !community_cmp(ri
->attr
->community
, com
))
8315 if (type
== bgp_show_type_community_list
) {
8316 struct community_list
*list
= output_arg
;
8318 if (!community_list_match(ri
->attr
->community
,
8322 if (type
== bgp_show_type_community_list_exact
) {
8323 struct community_list
*list
= output_arg
;
8325 if (!community_list_exact_match(
8326 ri
->attr
->community
, list
))
8329 if (type
== bgp_show_type_lcommunity
) {
8330 struct lcommunity
*lcom
= output_arg
;
8332 if (!ri
->attr
->lcommunity
8333 || !lcommunity_match(ri
->attr
->lcommunity
,
8337 if (type
== bgp_show_type_lcommunity_list
) {
8338 struct community_list
*list
= output_arg
;
8340 if (!lcommunity_list_match(ri
->attr
->lcommunity
,
8344 if (type
== bgp_show_type_lcommunity_all
) {
8345 if (!ri
->attr
->lcommunity
)
8348 if (type
== bgp_show_type_dampend_paths
8349 || type
== bgp_show_type_damp_neighbor
) {
8350 if (!CHECK_FLAG(ri
->flags
, BGP_INFO_DAMPED
)
8351 || CHECK_FLAG(ri
->flags
, BGP_INFO_HISTORY
))
8355 if (!use_json
&& header
) {
8356 vty_out(vty
, "BGP table version is %" PRIu64
8357 ", local router ID is %s, vrf id ",
8359 inet_ntoa(bgp
->router_id
));
8360 if (bgp
->vrf_id
== VRF_UNKNOWN
)
8361 vty_out(vty
, "%s", VRFID_NONE_STR
);
8363 vty_out(vty
, "%u", bgp
->vrf_id
);
8365 vty_out(vty
, BGP_SHOW_SCODE_HEADER
);
8366 vty_out(vty
, BGP_SHOW_NCODE_HEADER
);
8367 vty_out(vty
, BGP_SHOW_OCODE_HEADER
);
8368 if (type
== bgp_show_type_dampend_paths
8369 || type
== bgp_show_type_damp_neighbor
)
8370 vty_out(vty
, BGP_SHOW_DAMP_HEADER
);
8371 else if (type
== bgp_show_type_flap_statistics
8372 || type
== bgp_show_type_flap_neighbor
)
8373 vty_out(vty
, BGP_SHOW_FLAP_HEADER
);
8375 vty_out(vty
, BGP_SHOW_HEADER
);
8378 if (rd
!= NULL
&& !display
&& !output_count
) {
8381 "Route Distinguisher: %s\n",
8384 if (type
== bgp_show_type_dampend_paths
8385 || type
== bgp_show_type_damp_neighbor
)
8386 damp_route_vty_out(vty
, &rn
->p
, ri
, display
,
8387 safi
, use_json
, json_paths
);
8388 else if (type
== bgp_show_type_flap_statistics
8389 || type
== bgp_show_type_flap_neighbor
)
8390 flap_route_vty_out(vty
, &rn
->p
, ri
, display
,
8391 safi
, use_json
, json_paths
);
8393 route_vty_out(vty
, &rn
->p
, ri
, display
, safi
,
8404 sprintf(buf2
, "%s/%d",
8405 inet_ntop(p
->family
, &p
->u
.prefix
, buf
, BUFSIZ
),
8408 vty_out(vty
, "\"%s\": ", buf2
);
8410 vty_out(vty
, ",\"%s\": ", buf2
);
8413 json_object_to_json_string(json_paths
));
8414 json_object_free(json_paths
);
8421 output_count
+= *output_cum
;
8422 *output_cum
= output_count
;
8425 total_count
+= *total_cum
;
8426 *total_cum
= total_count
;
8430 vty_out(vty
, " }%s ", (is_last
? "" : ","));
8434 for (i
= 0; i
< *json_header_depth
; ++i
)
8435 vty_out(vty
, " } ");
8439 /* No route is displayed */
8440 if (output_count
== 0) {
8441 if (type
== bgp_show_type_normal
)
8443 "No BGP prefixes displayed, %ld exist\n",
8447 "\nDisplayed %ld routes and %ld total paths\n",
8448 output_count
, total_count
);
8455 int bgp_show_table_rd(struct vty
*vty
, struct bgp
*bgp
, safi_t safi
,
8456 struct bgp_table
*table
, struct prefix_rd
*prd_match
,
8457 enum bgp_show_type type
, void *output_arg
, bool use_json
)
8459 struct bgp_node
*rn
, *next
;
8460 unsigned long output_cum
= 0;
8461 unsigned long total_cum
= 0;
8462 unsigned long json_header_depth
= 0;
8465 show_msg
= (!use_json
&& type
== bgp_show_type_normal
);
8467 for (rn
= bgp_table_top(table
); rn
; rn
= next
) {
8468 next
= bgp_route_next(rn
);
8469 if (prd_match
&& memcmp(rn
->p
.u
.val
, prd_match
->val
, 8) != 0)
8471 if (rn
->info
!= NULL
) {
8472 struct prefix_rd prd
;
8473 char rd
[RD_ADDRSTRLEN
];
8475 memcpy(&prd
, &(rn
->p
), sizeof(struct prefix_rd
));
8476 prefix_rd2str(&prd
, rd
, sizeof(rd
));
8477 bgp_show_table(vty
, bgp
, safi
, rn
->info
, type
,
8478 output_arg
, use_json
, rd
, next
== NULL
,
8479 &output_cum
, &total_cum
,
8480 &json_header_depth
);
8486 if (output_cum
== 0)
8487 vty_out(vty
, "No BGP prefixes displayed, %ld exist\n",
8491 "\nDisplayed %ld routes and %ld total paths\n",
8492 output_cum
, total_cum
);
8496 static int bgp_show(struct vty
*vty
, struct bgp
*bgp
, afi_t afi
, safi_t safi
,
8497 enum bgp_show_type type
, void *output_arg
, bool use_json
)
8499 struct bgp_table
*table
;
8500 unsigned long json_header_depth
= 0;
8503 bgp
= bgp_get_default();
8508 vty_out(vty
, "No BGP process is configured\n");
8510 vty_out(vty
, "{}\n");
8514 table
= bgp
->rib
[afi
][safi
];
8515 /* use MPLS and ENCAP specific shows until they are merged */
8516 if (safi
== SAFI_MPLS_VPN
) {
8517 return bgp_show_table_rd(vty
, bgp
, safi
, table
, NULL
, type
,
8518 output_arg
, use_json
);
8521 if (safi
== SAFI_FLOWSPEC
&& type
== bgp_show_type_detail
) {
8522 return bgp_show_table_flowspec(vty
, bgp
, afi
, table
, type
,
8523 output_arg
, use_json
,
8526 /* labeled-unicast routes live in the unicast table */
8527 else if (safi
== SAFI_LABELED_UNICAST
)
8528 safi
= SAFI_UNICAST
;
8530 return bgp_show_table(vty
, bgp
, safi
, table
, type
, output_arg
, use_json
,
8531 NULL
, 1, NULL
, NULL
, &json_header_depth
);
8534 static void bgp_show_all_instances_routes_vty(struct vty
*vty
, afi_t afi
,
8535 safi_t safi
, bool use_json
)
8537 struct listnode
*node
, *nnode
;
8540 bool route_output
= false;
8543 vty_out(vty
, "{\n");
8545 for (ALL_LIST_ELEMENTS(bm
->bgp
, node
, nnode
, bgp
)) {
8546 route_output
= true;
8549 vty_out(vty
, ",\n");
8553 vty_out(vty
, "\"%s\":",
8554 (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)
8558 vty_out(vty
, "\nInstance %s:\n",
8559 (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)
8563 bgp_show(vty
, bgp
, afi
, safi
, bgp_show_type_normal
, NULL
,
8568 vty_out(vty
, "}\n");
8569 else if (!route_output
)
8570 vty_out(vty
, "%% BGP instance not found\n");
8573 /* Header of detailed BGP route information */
8574 void route_vty_out_detail_header(struct vty
*vty
, struct bgp
*bgp
,
8575 struct bgp_node
*rn
, struct prefix_rd
*prd
,
8576 afi_t afi
, safi_t safi
, json_object
*json
)
8578 struct bgp_info
*ri
;
8581 struct listnode
*node
, *nnode
;
8582 char buf1
[RD_ADDRSTRLEN
];
8583 char buf2
[INET6_ADDRSTRLEN
];
8584 char buf3
[EVPN_ROUTE_STRLEN
];
8585 char prefix_str
[BUFSIZ
];
8590 int route_filter_translated_v4
= 0;
8591 int route_filter_v4
= 0;
8592 int route_filter_translated_v6
= 0;
8593 int route_filter_v6
= 0;
8596 int accept_own_nexthop
= 0;
8599 int no_advertise
= 0;
8603 int has_valid_label
= 0;
8604 mpls_label_t label
= 0;
8605 json_object
*json_adv_to
= NULL
;
8608 has_valid_label
= bgp_is_valid_label(&rn
->local_label
);
8610 if (has_valid_label
)
8611 label
= label_pton(&rn
->local_label
);
8614 if (has_valid_label
)
8615 json_object_int_add(json
, "localLabel", label
);
8617 json_object_string_add(
8619 prefix2str(p
, prefix_str
, sizeof(prefix_str
)));
8621 if (safi
== SAFI_EVPN
)
8622 vty_out(vty
, "BGP routing table entry for %s%s%s\n",
8623 prd
? prefix_rd2str(prd
, buf1
, sizeof(buf1
))
8626 bgp_evpn_route2str((struct prefix_evpn
*)p
,
8627 buf3
, sizeof(buf3
)));
8629 vty_out(vty
, "BGP routing table entry for %s%s%s/%d\n",
8630 ((safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
)
8631 ? prefix_rd2str(prd
, buf1
,
8634 safi
== SAFI_MPLS_VPN
? ":" : "",
8635 inet_ntop(p
->family
, &p
->u
.prefix
, buf2
,
8639 if (has_valid_label
)
8640 vty_out(vty
, "Local label: %d\n", label
);
8641 if (bgp_labeled_safi(safi
) && safi
!= SAFI_EVPN
)
8642 vty_out(vty
, "not allocated\n");
8645 for (ri
= rn
->info
; ri
; ri
= ri
->next
) {
8647 if (CHECK_FLAG(ri
->flags
, BGP_INFO_SELECTED
)) {
8649 if (ri
->extra
&& ri
->extra
->suppress
)
8651 if (ri
->attr
->community
!= NULL
) {
8652 if (community_include(ri
->attr
->community
,
8653 COMMUNITY_NO_ADVERTISE
))
8655 if (community_include(ri
->attr
->community
,
8656 COMMUNITY_NO_EXPORT
))
8658 if (community_include(ri
->attr
->community
,
8659 COMMUNITY_LOCAL_AS
))
8666 vty_out(vty
, "Paths: (%d available", count
);
8668 vty_out(vty
, ", best #%d", best
);
8669 if (safi
== SAFI_UNICAST
)
8670 vty_out(vty
, ", table %s",
8672 == BGP_INSTANCE_TYPE_DEFAULT
)
8673 ? "Default-IP-Routing-Table"
8676 vty_out(vty
, ", no best path");
8680 ", accept own local route exported and imported in different VRF");
8681 else if (route_filter_translated_v4
)
8683 ", mark translated RTs for VPNv4 route filtering");
8684 else if (route_filter_v4
)
8686 ", attach RT as-is for VPNv4 route filtering");
8687 else if (route_filter_translated_v6
)
8689 ", mark translated RTs for VPNv6 route filtering");
8690 else if (route_filter_v6
)
8692 ", attach RT as-is for VPNv6 route filtering");
8693 else if (llgr_stale
)
8695 ", mark routes to be retained for a longer time. Requeres support for Long-lived BGP Graceful Restart");
8698 ", mark routes to not be treated according to Long-lived BGP Graceful Restart operations");
8699 else if (accept_own_nexthop
)
8701 ", accept local nexthop");
8703 vty_out(vty
, ", inform peer to blackhole prefix");
8705 vty_out(vty
, ", not advertised to EBGP peer");
8706 else if (no_advertise
)
8707 vty_out(vty
, ", not advertised to any peer");
8709 vty_out(vty
, ", not advertised outside local AS");
8712 ", inform EBGP peer not to advertise to their EBGP peers");
8716 ", Advertisements suppressed by an aggregate.");
8717 vty_out(vty
, ")\n");
8720 /* If we are not using addpath then we can display Advertised to and
8722 * show what peers we advertised the bestpath to. If we are using
8724 * though then we must display Advertised to on a path-by-path basis. */
8725 if (!bgp
->addpath_tx_used
[afi
][safi
]) {
8726 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
8727 if (bgp_adj_out_lookup(peer
, rn
, 0)) {
8728 if (json
&& !json_adv_to
)
8729 json_adv_to
= json_object_new_object();
8731 route_vty_out_advertised_to(
8733 " Advertised to non peer-group peers:\n ",
8740 json_object_object_add(json
, "advertisedTo",
8745 vty_out(vty
, " Not advertised to any peer");
8751 /* Display specified route of BGP table. */
8752 static int bgp_show_route_in_table(struct vty
*vty
, struct bgp
*bgp
,
8753 struct bgp_table
*rib
, const char *ip_str
,
8754 afi_t afi
, safi_t safi
,
8755 struct prefix_rd
*prd
, int prefix_check
,
8756 enum bgp_path_type pathtype
, bool use_json
)
8761 struct prefix match
;
8762 struct bgp_node
*rn
;
8763 struct bgp_node
*rm
;
8764 struct bgp_info
*ri
;
8765 struct bgp_table
*table
;
8766 json_object
*json
= NULL
;
8767 json_object
*json_paths
= NULL
;
8769 /* Check IP address argument. */
8770 ret
= str2prefix(ip_str
, &match
);
8772 vty_out(vty
, "address is malformed\n");
8776 match
.family
= afi2family(afi
);
8779 json
= json_object_new_object();
8780 json_paths
= json_object_new_array();
8783 if (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
|| safi
== SAFI_EVPN
) {
8784 for (rn
= bgp_table_top(rib
); rn
; rn
= bgp_route_next(rn
)) {
8785 if (prd
&& memcmp(rn
->p
.u
.val
, prd
->val
, 8) != 0)
8788 if ((table
= rn
->info
) == NULL
)
8793 if ((rm
= bgp_node_match(table
, &match
)) == NULL
)
8797 && rm
->p
.prefixlen
!= match
.prefixlen
) {
8798 bgp_unlock_node(rm
);
8802 for (ri
= rm
->info
; ri
; ri
= ri
->next
) {
8804 route_vty_out_detail_header(
8806 (struct prefix_rd
*)&rn
->p
,
8807 AFI_IP
, safi
, json
);
8812 if (pathtype
== BGP_PATH_ALL
8813 || (pathtype
== BGP_PATH_BESTPATH
8814 && CHECK_FLAG(ri
->flags
,
8816 || (pathtype
== BGP_PATH_MULTIPATH
8817 && (CHECK_FLAG(ri
->flags
,
8819 || CHECK_FLAG(ri
->flags
,
8820 BGP_INFO_SELECTED
))))
8821 route_vty_out_detail(vty
, bgp
, &rm
->p
,
8826 bgp_unlock_node(rm
);
8828 } else if (safi
== SAFI_FLOWSPEC
) {
8829 display
= bgp_flowspec_display_match_per_ip(afi
, rib
,
8830 &match
, prefix_check
,
8837 if ((rn
= bgp_node_match(rib
, &match
)) != NULL
) {
8839 || rn
->p
.prefixlen
== match
.prefixlen
) {
8840 for (ri
= rn
->info
; ri
; ri
= ri
->next
) {
8842 route_vty_out_detail_header(
8843 vty
, bgp
, rn
, NULL
, afi
,
8849 if (pathtype
== BGP_PATH_ALL
8850 || (pathtype
== BGP_PATH_BESTPATH
8854 || (pathtype
== BGP_PATH_MULTIPATH
8860 BGP_INFO_SELECTED
))))
8861 route_vty_out_detail(
8862 vty
, bgp
, &rn
->p
, ri
,
8863 afi
, safi
, json_paths
);
8867 bgp_unlock_node(rn
);
8873 json_object_object_add(json
, "paths", json_paths
);
8875 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
8876 json
, JSON_C_TO_STRING_PRETTY
));
8877 json_object_free(json
);
8880 vty_out(vty
, "%% Network not in table\n");
8888 /* Display specified route of Main RIB */
8889 static int bgp_show_route(struct vty
*vty
, struct bgp
*bgp
, const char *ip_str
,
8890 afi_t afi
, safi_t safi
, struct prefix_rd
*prd
,
8891 int prefix_check
, enum bgp_path_type pathtype
,
8895 bgp
= bgp_get_default();
8898 vty_out(vty
, "No BGP process is configured\n");
8900 vty_out(vty
, "{}\n");
8905 /* labeled-unicast routes live in the unicast table */
8906 if (safi
== SAFI_LABELED_UNICAST
)
8907 safi
= SAFI_UNICAST
;
8909 return bgp_show_route_in_table(vty
, bgp
, bgp
->rib
[afi
][safi
], ip_str
,
8910 afi
, safi
, prd
, prefix_check
, pathtype
,
8914 static int bgp_show_lcommunity(struct vty
*vty
, struct bgp
*bgp
, int argc
,
8915 struct cmd_token
**argv
, afi_t afi
, safi_t safi
,
8918 struct lcommunity
*lcom
;
8924 b
= buffer_new(1024);
8925 for (i
= 0; i
< argc
; i
++) {
8927 buffer_putc(b
, ' ');
8929 if (strmatch(argv
[i
]->text
, "AA:BB:CC")) {
8931 buffer_putstr(b
, argv
[i
]->arg
);
8935 buffer_putc(b
, '\0');
8937 str
= buffer_getstr(b
);
8940 lcom
= lcommunity_str2com(str
);
8941 XFREE(MTYPE_TMP
, str
);
8943 vty_out(vty
, "%% Large-community malformed\n");
8947 return bgp_show(vty
, bgp
, afi
, safi
, bgp_show_type_lcommunity
, lcom
,
8951 static int bgp_show_lcommunity_list(struct vty
*vty
, struct bgp
*bgp
,
8952 const char *lcom
, afi_t afi
, safi_t safi
,
8955 struct community_list
*list
;
8957 list
= community_list_lookup(bgp_clist
, lcom
,
8958 LARGE_COMMUNITY_LIST_MASTER
);
8960 vty_out(vty
, "%% %s is not a valid large-community-list name\n",
8965 return bgp_show(vty
, bgp
, afi
, safi
, bgp_show_type_lcommunity_list
,
8969 DEFUN (show_ip_bgp_large_community_list
,
8970 show_ip_bgp_large_community_list_cmd
,
8971 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]] large-community-list <(1-500)|WORD> [json]",
8975 BGP_INSTANCE_HELP_STR
8977 BGP_SAFI_WITH_LABEL_HELP_STR
8978 "Display routes matching the large-community-list\n"
8979 "large-community-list number\n"
8980 "large-community-list name\n"
8984 afi_t afi
= AFI_IP6
;
8985 safi_t safi
= SAFI_UNICAST
;
8988 if (argv_find(argv
, argc
, "ip", &idx
))
8990 if (argv_find(argv
, argc
, "view", &idx
)
8991 || argv_find(argv
, argc
, "vrf", &idx
))
8992 vrf
= argv
[++idx
]->arg
;
8993 if (argv_find(argv
, argc
, "ipv4", &idx
)
8994 || argv_find(argv
, argc
, "ipv6", &idx
)) {
8995 afi
= strmatch(argv
[idx
]->text
, "ipv6") ? AFI_IP6
: AFI_IP
;
8996 if (argv_find(argv
, argc
, "unicast", &idx
)
8997 || argv_find(argv
, argc
, "multicast", &idx
))
8998 safi
= bgp_vty_safi_from_str(argv
[idx
]->text
);
9001 bool uj
= use_json(argc
, argv
);
9003 struct bgp
*bgp
= bgp_lookup_by_name(vrf
);
9005 vty_out(vty
, "Can't find BGP instance %s\n", vrf
);
9009 argv_find(argv
, argc
, "large-community-list", &idx
);
9010 return bgp_show_lcommunity_list(vty
, bgp
, argv
[idx
+ 1]->arg
, afi
, safi
,
9013 DEFUN (show_ip_bgp_large_community
,
9014 show_ip_bgp_large_community_cmd
,
9015 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]] large-community [AA:BB:CC] [json]",
9019 BGP_INSTANCE_HELP_STR
9021 BGP_SAFI_WITH_LABEL_HELP_STR
9022 "Display routes matching the large-communities\n"
9023 "List of large-community numbers\n"
9027 afi_t afi
= AFI_IP6
;
9028 safi_t safi
= SAFI_UNICAST
;
9031 if (argv_find(argv
, argc
, "ip", &idx
))
9033 if (argv_find(argv
, argc
, "view", &idx
)
9034 || argv_find(argv
, argc
, "vrf", &idx
))
9035 vrf
= argv
[++idx
]->arg
;
9036 if (argv_find(argv
, argc
, "ipv4", &idx
)
9037 || argv_find(argv
, argc
, "ipv6", &idx
)) {
9038 afi
= strmatch(argv
[idx
]->text
, "ipv6") ? AFI_IP6
: AFI_IP
;
9039 if (argv_find(argv
, argc
, "unicast", &idx
)
9040 || argv_find(argv
, argc
, "multicast", &idx
))
9041 safi
= bgp_vty_safi_from_str(argv
[idx
]->text
);
9044 bool uj
= use_json(argc
, argv
);
9046 struct bgp
*bgp
= bgp_lookup_by_name(vrf
);
9048 vty_out(vty
, "Can't find BGP instance %s\n", vrf
);
9052 if (argv_find(argv
, argc
, "AA:BB:CC", &idx
))
9053 return bgp_show_lcommunity(vty
, bgp
, argc
, argv
, afi
, safi
, uj
);
9055 return bgp_show(vty
, bgp
, afi
, safi
,
9056 bgp_show_type_lcommunity_all
, NULL
, uj
);
9059 static int bgp_table_stats(struct vty
*vty
, struct bgp
*bgp
, afi_t afi
,
9063 /* BGP route print out function without JSON */
9066 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]]\
9067 <dampening <parameters>\
9072 |community <AA:NN|local-AS|no-advertise|no-export|graceful-shutdown\
9073 no-peer|blackhole|llgr-stale|no-llgr|accept-own|accept-own-nexthop\
9074 route-filter-v6|route-filter-v4|route-filter-translated-v6|\
9075 route-filter-translated-v4> [exact-match]\
9076 |community-list <(1-500)|WORD> [exact-match]\
9077 |A.B.C.D/M longer-prefixes\
9078 |X:X::X:X/M longer-prefixes\
9083 BGP_INSTANCE_HELP_STR
9085 BGP_SAFI_WITH_LABEL_HELP_STR
9086 "Display detailed information about dampening\n"
9087 "Display detail of configured dampening parameters\n"
9088 "Display routes matching the route-map\n"
9089 "A route-map to match on\n"
9090 "Display routes conforming to the prefix-list\n"
9091 "Prefix-list name\n"
9092 "Display routes conforming to the filter-list\n"
9093 "Regular expression access list name\n"
9094 "BGP RIB advertisement statistics\n"
9095 "Display routes matching the communities\n"
9097 "Do not send outside local AS (well-known community)\n"
9098 "Do not advertise to any peer (well-known community)\n"
9099 "Do not export to next AS (well-known community)\n"
9100 "Graceful shutdown (well-known community)\n"
9101 "Do not export to any peer (well-known community)\n"
9102 "Inform EBGP peers to blackhole traffic to prefix (well-known community)\n"
9103 "Staled Long-lived Graceful Restart VPN route (well-known community)\n"
9104 "Removed because Long-lived Graceful Restart was not enabled for VPN route (well-known community)\n"
9105 "Should accept local VPN route if exported and imported into different VRF (well-known community)\n"
9106 "Should accept VPN route with local nexthop (well-known community)\n"
9107 "RT VPNv6 route filtering (well-known community)\n"
9108 "RT VPNv4 route filtering (well-known community)\n"
9109 "RT translated VPNv6 route filtering (well-known community)\n"
9110 "RT translated VPNv4 route filtering (well-known community)\n"
9111 "Exact match of the communities\n"
9112 "Display routes matching the community-list\n"
9113 "community-list number\n"
9114 "community-list name\n"
9115 "Exact match of the communities\n"
9117 "Display route and more specific routes\n"
9119 "Display route and more specific routes\n")
9121 afi_t afi
= AFI_IP6
;
9122 safi_t safi
= SAFI_UNICAST
;
9123 int exact_match
= 0;
9124 struct bgp
*bgp
= NULL
;
9127 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
9132 if (argv_find(argv
, argc
, "dampening", &idx
)) {
9133 if (argv_find(argv
, argc
, "parameters", &idx
))
9134 return bgp_show_dampening_parameters(vty
, afi
, safi
);
9137 if (argv_find(argv
, argc
, "prefix-list", &idx
))
9138 return bgp_show_prefix_list(vty
, bgp
, argv
[idx
+ 1]->arg
, afi
,
9139 safi
, bgp_show_type_prefix_list
);
9141 if (argv_find(argv
, argc
, "filter-list", &idx
))
9142 return bgp_show_filter_list(vty
, bgp
, argv
[idx
+ 1]->arg
, afi
,
9143 safi
, bgp_show_type_filter_list
);
9145 if (argv_find(argv
, argc
, "statistics", &idx
))
9146 return bgp_table_stats(vty
, bgp
, afi
, safi
);
9148 if (argv_find(argv
, argc
, "route-map", &idx
))
9149 return bgp_show_route_map(vty
, bgp
, argv
[idx
+ 1]->arg
, afi
,
9150 safi
, bgp_show_type_route_map
);
9152 if (argv_find(argv
, argc
, "community-list", &idx
)) {
9153 const char *clist_number_or_name
= argv
[++idx
]->arg
;
9154 if (++idx
< argc
&& strmatch(argv
[idx
]->text
, "exact-match"))
9156 return bgp_show_community_list(vty
, bgp
, clist_number_or_name
,
9157 exact_match
, afi
, safi
);
9160 if (argv_find(argv
, argc
, "A.B.C.D/M", &idx
)
9161 || argv_find(argv
, argc
, "X:X::X:X/M", &idx
))
9162 return bgp_show_prefix_longer(vty
, bgp
, argv
[idx
]->arg
, afi
,
9164 bgp_show_type_prefix_longer
);
9169 /* BGP route print out function with JSON */
9170 DEFUN (show_ip_bgp_json
,
9171 show_ip_bgp_json_cmd
,
9172 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]]\
9175 |dampening <flap-statistics|dampened-paths>\
9176 |community [<AA:NN|local-AS|no-advertise|no-export|graceful-shutdown>] [exact-match]\
9181 BGP_INSTANCE_HELP_STR
9183 BGP_SAFI_WITH_LABEL_HELP_STR
9184 "Display only routes with non-natural netmasks\n"
9185 "Display detailed information about dampening\n"
9186 "Display flap statistics of routes\n"
9187 "Display paths suppressed due to dampening\n"
9188 "Display routes matching the communities\n"
9190 "Do not send outside local AS (well-known community)\n"
9191 "Do not advertise to any peer (well-known community)\n"
9192 "Do not export to next AS (well-known community)\n"
9193 "Graceful shutdown (well-known community)\n"
9194 "Exact match of the communities\n"
9197 afi_t afi
= AFI_IP6
;
9198 safi_t safi
= SAFI_UNICAST
;
9199 enum bgp_show_type sh_type
= bgp_show_type_normal
;
9200 struct bgp
*bgp
= NULL
;
9202 int idx_community_type
= 0;
9203 int exact_match
= 0;
9204 bool uj
= use_json(argc
, argv
);
9209 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
9214 if (argv_find(argv
, argc
, "cidr-only", &idx
))
9215 return bgp_show(vty
, bgp
, afi
, safi
, bgp_show_type_cidr_only
,
9218 if (argv_find(argv
, argc
, "dampening", &idx
)) {
9219 if (argv_find(argv
, argc
, "dampened-paths", &idx
))
9220 return bgp_show(vty
, bgp
, afi
, safi
,
9221 bgp_show_type_dampend_paths
, NULL
, uj
);
9222 else if (argv_find(argv
, argc
, "flap-statistics", &idx
))
9223 return bgp_show(vty
, bgp
, afi
, safi
,
9224 bgp_show_type_flap_statistics
, NULL
,
9228 if (argv_find(argv
, argc
, "community", &idx
)) {
9230 /* show a specific community */
9231 if (argv_find(argv
, argc
, "local-AS", &idx_community_type
) ||
9232 argv_find(argv
, argc
, "no-advertise",
9233 &idx_community_type
) ||
9234 argv_find(argv
, argc
, "no-export",
9235 &idx_community_type
) ||
9236 argv_find(argv
, argc
, "graceful-shutdown",
9237 &idx_community_type
) ||
9238 argv_find(argv
, argc
, "AA:NN", &idx_community_type
)) {
9239 if (argv_find(argv
, argc
, "exact-match", &idx
))
9242 return (bgp_show_community(vty
, bgp
,
9243 argv
[idx_community_type
]->arg
,
9244 exact_match
, afi
, safi
, uj
));
9247 /* show all communities */
9248 return (bgp_show(vty
, bgp
, afi
, safi
,
9249 bgp_show_type_community_all
, NULL
,
9254 return bgp_show(vty
, bgp
, afi
, safi
, sh_type
, NULL
, uj
);
9257 DEFUN (show_ip_bgp_route
,
9258 show_ip_bgp_route_cmd
,
9259 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]]"
9260 "<A.B.C.D|A.B.C.D/M|X:X::X:X|X:X::X:X/M> [<bestpath|multipath>] [json]",
9264 BGP_INSTANCE_HELP_STR
9266 BGP_SAFI_WITH_LABEL_HELP_STR
9267 "Network in the BGP routing table to display\n"
9269 "Network in the BGP routing table to display\n"
9271 "Display only the bestpath\n"
9272 "Display only multipaths\n"
9275 int prefix_check
= 0;
9277 afi_t afi
= AFI_IP6
;
9278 safi_t safi
= SAFI_UNICAST
;
9279 char *prefix
= NULL
;
9280 struct bgp
*bgp
= NULL
;
9281 enum bgp_path_type path_type
;
9282 bool uj
= use_json(argc
, argv
);
9286 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
9293 "Specified 'all' vrf's but this command currently only works per view/vrf\n");
9297 /* <A.B.C.D|A.B.C.D/M|X:X::X:X|X:X::X:X/M> */
9298 if (argv_find(argv
, argc
, "A.B.C.D", &idx
)
9299 || argv_find(argv
, argc
, "X:X::X:X", &idx
))
9301 else if (argv_find(argv
, argc
, "A.B.C.D/M", &idx
)
9302 || argv_find(argv
, argc
, "X:X::X:X/M", &idx
))
9305 if ((argv
[idx
]->type
== IPV6_TKN
|| argv
[idx
]->type
== IPV6_PREFIX_TKN
)
9306 && afi
!= AFI_IP6
) {
9308 "%% Cannot specify IPv6 address or prefix with IPv4 AFI\n");
9311 if ((argv
[idx
]->type
== IPV4_TKN
|| argv
[idx
]->type
== IPV4_PREFIX_TKN
)
9314 "%% Cannot specify IPv4 address or prefix with IPv6 AFI\n");
9318 prefix
= argv
[idx
]->arg
;
9320 /* [<bestpath|multipath>] */
9321 if (argv_find(argv
, argc
, "bestpath", &idx
))
9322 path_type
= BGP_PATH_BESTPATH
;
9323 else if (argv_find(argv
, argc
, "multipath", &idx
))
9324 path_type
= BGP_PATH_MULTIPATH
;
9326 path_type
= BGP_PATH_ALL
;
9328 return bgp_show_route(vty
, bgp
, prefix
, afi
, safi
, NULL
, prefix_check
,
9332 DEFUN (show_ip_bgp_regexp
,
9333 show_ip_bgp_regexp_cmd
,
9334 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]] regexp REGEX...",
9338 BGP_INSTANCE_HELP_STR
9340 BGP_SAFI_WITH_LABEL_HELP_STR
9341 "Display routes matching the AS path regular expression\n"
9342 "A regular-expression to match the BGP AS paths\n")
9344 afi_t afi
= AFI_IP6
;
9345 safi_t safi
= SAFI_UNICAST
;
9346 struct bgp
*bgp
= NULL
;
9349 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
9354 // get index of regex
9355 argv_find(argv
, argc
, "regexp", &idx
);
9358 char *regstr
= argv_concat(argv
, argc
, idx
);
9359 int rc
= bgp_show_regexp(vty
, bgp
, (const char *)regstr
, afi
, safi
,
9360 bgp_show_type_regexp
);
9361 XFREE(MTYPE_TMP
, regstr
);
9365 DEFUN (show_ip_bgp_instance_all
,
9366 show_ip_bgp_instance_all_cmd
,
9367 "show [ip] bgp <view|vrf> all ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]] [json]",
9371 BGP_INSTANCE_ALL_HELP_STR
9373 BGP_SAFI_WITH_LABEL_HELP_STR
9377 safi_t safi
= SAFI_UNICAST
;
9378 struct bgp
*bgp
= NULL
;
9380 bool uj
= use_json(argc
, argv
);
9385 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
9390 bgp_show_all_instances_routes_vty(vty
, afi
, safi
, uj
);
9394 static int bgp_show_regexp(struct vty
*vty
, struct bgp
*bgp
, const char *regstr
,
9395 afi_t afi
, safi_t safi
, enum bgp_show_type type
)
9400 regex
= bgp_regcomp(regstr
);
9402 vty_out(vty
, "Can't compile regexp %s\n", regstr
);
9406 rc
= bgp_show(vty
, bgp
, afi
, safi
, type
, regex
, 0);
9407 bgp_regex_free(regex
);
9411 static int bgp_show_prefix_list(struct vty
*vty
, struct bgp
*bgp
,
9412 const char *prefix_list_str
, afi_t afi
,
9413 safi_t safi
, enum bgp_show_type type
)
9415 struct prefix_list
*plist
;
9417 plist
= prefix_list_lookup(afi
, prefix_list_str
);
9418 if (plist
== NULL
) {
9419 vty_out(vty
, "%% %s is not a valid prefix-list name\n",
9424 return bgp_show(vty
, bgp
, afi
, safi
, type
, plist
, 0);
9427 static int bgp_show_filter_list(struct vty
*vty
, struct bgp
*bgp
,
9428 const char *filter
, afi_t afi
, safi_t safi
,
9429 enum bgp_show_type type
)
9431 struct as_list
*as_list
;
9433 as_list
= as_list_lookup(filter
);
9434 if (as_list
== NULL
) {
9435 vty_out(vty
, "%% %s is not a valid AS-path access-list name\n",
9440 return bgp_show(vty
, bgp
, afi
, safi
, type
, as_list
, 0);
9443 static int bgp_show_route_map(struct vty
*vty
, struct bgp
*bgp
,
9444 const char *rmap_str
, afi_t afi
, safi_t safi
,
9445 enum bgp_show_type type
)
9447 struct route_map
*rmap
;
9449 rmap
= route_map_lookup_by_name(rmap_str
);
9451 vty_out(vty
, "%% %s is not a valid route-map name\n", rmap_str
);
9455 return bgp_show(vty
, bgp
, afi
, safi
, type
, rmap
, 0);
9458 static int bgp_show_community(struct vty
*vty
, struct bgp
*bgp
,
9459 const char *comstr
, int exact
, afi_t afi
,
9460 safi_t safi
, bool use_json
)
9462 struct community
*com
;
9465 com
= community_str2com(comstr
);
9467 vty_out(vty
, "%% Community malformed: %s\n", comstr
);
9471 ret
= bgp_show(vty
, bgp
, afi
, safi
,
9472 (exact
? bgp_show_type_community_exact
9473 : bgp_show_type_community
),
9475 community_free(com
);
9480 static int bgp_show_community_list(struct vty
*vty
, struct bgp
*bgp
,
9481 const char *com
, int exact
, afi_t afi
,
9484 struct community_list
*list
;
9486 list
= community_list_lookup(bgp_clist
, com
, COMMUNITY_LIST_MASTER
);
9488 vty_out(vty
, "%% %s is not a valid community-list name\n", com
);
9492 return bgp_show(vty
, bgp
, afi
, safi
,
9493 (exact
? bgp_show_type_community_list_exact
9494 : bgp_show_type_community_list
),
9498 static int bgp_show_prefix_longer(struct vty
*vty
, struct bgp
*bgp
,
9499 const char *prefix
, afi_t afi
, safi_t safi
,
9500 enum bgp_show_type type
)
9507 ret
= str2prefix(prefix
, p
);
9509 vty_out(vty
, "%% Malformed Prefix\n");
9513 ret
= bgp_show(vty
, bgp
, afi
, safi
, type
, p
, 0);
9518 static struct peer
*peer_lookup_in_view(struct vty
*vty
, struct bgp
*bgp
,
9519 const char *ip_str
, bool use_json
)
9525 /* Get peer sockunion. */
9526 ret
= str2sockunion(ip_str
, &su
);
9528 peer
= peer_lookup_by_conf_if(bgp
, ip_str
);
9530 peer
= peer_lookup_by_hostname(bgp
, ip_str
);
9534 json_object
*json_no
= NULL
;
9535 json_no
= json_object_new_object();
9536 json_object_string_add(
9538 "malformedAddressOrName",
9540 vty_out(vty
, "%s\n",
9541 json_object_to_json_string_ext(
9543 JSON_C_TO_STRING_PRETTY
));
9544 json_object_free(json_no
);
9547 "%% Malformed address or name: %s\n",
9555 /* Peer structure lookup. */
9556 peer
= peer_lookup(bgp
, &su
);
9559 json_object
*json_no
= NULL
;
9560 json_no
= json_object_new_object();
9561 json_object_string_add(json_no
, "warning",
9562 "No such neighbor in this view/vrf");
9563 vty_out(vty
, "%s\n",
9564 json_object_to_json_string_ext(
9565 json_no
, JSON_C_TO_STRING_PRETTY
));
9566 json_object_free(json_no
);
9568 vty_out(vty
, "No such neighbor in this view/vrf\n");
9576 BGP_STATS_MAXBITLEN
= 0,
9580 BGP_STATS_UNAGGREGATEABLE
,
9581 BGP_STATS_MAX_AGGREGATEABLE
,
9582 BGP_STATS_AGGREGATES
,
9584 BGP_STATS_ASPATH_COUNT
,
9585 BGP_STATS_ASPATH_MAXHOPS
,
9586 BGP_STATS_ASPATH_TOTHOPS
,
9587 BGP_STATS_ASPATH_MAXSIZE
,
9588 BGP_STATS_ASPATH_TOTSIZE
,
9589 BGP_STATS_ASN_HIGHEST
,
9593 static const char *table_stats_strs
[] = {
9594 [BGP_STATS_PREFIXES
] = "Total Prefixes",
9595 [BGP_STATS_TOTPLEN
] = "Average prefix length",
9596 [BGP_STATS_RIB
] = "Total Advertisements",
9597 [BGP_STATS_UNAGGREGATEABLE
] = "Unaggregateable prefixes",
9598 [BGP_STATS_MAX_AGGREGATEABLE
] =
9599 "Maximum aggregateable prefixes",
9600 [BGP_STATS_AGGREGATES
] = "BGP Aggregate advertisements",
9601 [BGP_STATS_SPACE
] = "Address space advertised",
9602 [BGP_STATS_ASPATH_COUNT
] = "Advertisements with paths",
9603 [BGP_STATS_ASPATH_MAXHOPS
] = "Longest AS-Path (hops)",
9604 [BGP_STATS_ASPATH_MAXSIZE
] = "Largest AS-Path (bytes)",
9605 [BGP_STATS_ASPATH_TOTHOPS
] = "Average AS-Path length (hops)",
9606 [BGP_STATS_ASPATH_TOTSIZE
] = "Average AS-Path size (bytes)",
9607 [BGP_STATS_ASN_HIGHEST
] = "Highest public ASN",
9608 [BGP_STATS_MAX
] = NULL
,
9611 struct bgp_table_stats
{
9612 struct bgp_table
*table
;
9613 unsigned long long counts
[BGP_STATS_MAX
];
9618 #define TALLY_SIGFIG 100000
9619 static unsigned long
9620 ravg_tally (unsigned long count
, unsigned long oldavg
, unsigned long newval
)
9622 unsigned long newtot
= (count
-1) * oldavg
+ (newval
* TALLY_SIGFIG
);
9623 unsigned long res
= (newtot
* TALLY_SIGFIG
) / count
;
9624 unsigned long ret
= newtot
/ count
;
9626 if ((res
% TALLY_SIGFIG
) > (TALLY_SIGFIG
/2))
9633 static int bgp_table_stats_walker(struct thread
*t
)
9635 struct bgp_node
*rn
;
9636 struct bgp_node
*top
;
9637 struct bgp_table_stats
*ts
= THREAD_ARG(t
);
9638 unsigned int space
= 0;
9640 if (!(top
= bgp_table_top(ts
->table
)))
9643 switch (top
->p
.family
) {
9645 space
= IPV4_MAX_BITLEN
;
9648 space
= IPV6_MAX_BITLEN
;
9652 ts
->counts
[BGP_STATS_MAXBITLEN
] = space
;
9654 for (rn
= top
; rn
; rn
= bgp_route_next(rn
)) {
9655 struct bgp_info
*ri
;
9656 struct bgp_node
*prn
= bgp_node_parent_nolock(rn
);
9657 unsigned int rinum
= 0;
9665 ts
->counts
[BGP_STATS_PREFIXES
]++;
9666 ts
->counts
[BGP_STATS_TOTPLEN
] += rn
->p
.prefixlen
;
9669 ts
->counts
[BGP_STATS_AVGPLEN
]
9670 = ravg_tally (ts
->counts
[BGP_STATS_PREFIXES
],
9671 ts
->counts
[BGP_STATS_AVGPLEN
],
9675 /* check if the prefix is included by any other announcements */
9676 while (prn
&& !prn
->info
)
9677 prn
= bgp_node_parent_nolock(prn
);
9679 if (prn
== NULL
|| prn
== top
) {
9680 ts
->counts
[BGP_STATS_UNAGGREGATEABLE
]++;
9681 /* announced address space */
9684 pow(2.0, space
- rn
->p
.prefixlen
);
9685 } else if (prn
->info
)
9686 ts
->counts
[BGP_STATS_MAX_AGGREGATEABLE
]++;
9688 for (ri
= rn
->info
; ri
; ri
= ri
->next
) {
9690 ts
->counts
[BGP_STATS_RIB
]++;
9693 && (CHECK_FLAG(ri
->attr
->flag
,
9695 BGP_ATTR_ATOMIC_AGGREGATE
))))
9696 ts
->counts
[BGP_STATS_AGGREGATES
]++;
9699 if (ri
->attr
&& ri
->attr
->aspath
) {
9701 aspath_count_hops(ri
->attr
->aspath
);
9703 aspath_size(ri
->attr
->aspath
);
9704 as_t highest
= aspath_highest(ri
->attr
->aspath
);
9706 ts
->counts
[BGP_STATS_ASPATH_COUNT
]++;
9708 if (hops
> ts
->counts
[BGP_STATS_ASPATH_MAXHOPS
])
9709 ts
->counts
[BGP_STATS_ASPATH_MAXHOPS
] =
9712 if (size
> ts
->counts
[BGP_STATS_ASPATH_MAXSIZE
])
9713 ts
->counts
[BGP_STATS_ASPATH_MAXSIZE
] =
9716 ts
->counts
[BGP_STATS_ASPATH_TOTHOPS
] += hops
;
9717 ts
->counts
[BGP_STATS_ASPATH_TOTSIZE
] += size
;
9719 ts
->counts
[BGP_STATS_ASPATH_AVGHOPS
]
9720 = ravg_tally (ts
->counts
[BGP_STATS_ASPATH_COUNT
],
9721 ts
->counts
[BGP_STATS_ASPATH_AVGHOPS
],
9723 ts
->counts
[BGP_STATS_ASPATH_AVGSIZE
]
9724 = ravg_tally (ts
->counts
[BGP_STATS_ASPATH_COUNT
],
9725 ts
->counts
[BGP_STATS_ASPATH_AVGSIZE
],
9728 if (highest
> ts
->counts
[BGP_STATS_ASN_HIGHEST
])
9729 ts
->counts
[BGP_STATS_ASN_HIGHEST
] =
9737 static int bgp_table_stats(struct vty
*vty
, struct bgp
*bgp
, afi_t afi
,
9740 struct bgp_table_stats ts
;
9743 if (!bgp
->rib
[afi
][safi
]) {
9744 vty_out(vty
, "%% No RIB exist's for the AFI(%d)/SAFI(%d)\n",
9749 vty_out(vty
, "BGP %s RIB statistics\n", afi_safi_print(afi
, safi
));
9751 /* labeled-unicast routes live in the unicast table */
9752 if (safi
== SAFI_LABELED_UNICAST
)
9753 safi
= SAFI_UNICAST
;
9755 memset(&ts
, 0, sizeof(ts
));
9756 ts
.table
= bgp
->rib
[afi
][safi
];
9757 thread_execute(bm
->master
, bgp_table_stats_walker
, &ts
, 0);
9759 for (i
= 0; i
< BGP_STATS_MAX
; i
++) {
9760 if (!table_stats_strs
[i
])
9765 case BGP_STATS_ASPATH_AVGHOPS
:
9766 case BGP_STATS_ASPATH_AVGSIZE
:
9767 case BGP_STATS_AVGPLEN
:
9768 vty_out (vty
, "%-30s: ", table_stats_strs
[i
]);
9769 vty_out (vty
, "%12.2f",
9770 (float)ts
.counts
[i
] / (float)TALLY_SIGFIG
);
9773 case BGP_STATS_ASPATH_TOTHOPS
:
9774 case BGP_STATS_ASPATH_TOTSIZE
:
9775 vty_out(vty
, "%-30s: ", table_stats_strs
[i
]);
9776 vty_out(vty
, "%12.2f",
9778 ? (float)ts
.counts
[i
]
9780 [BGP_STATS_ASPATH_COUNT
]
9783 case BGP_STATS_TOTPLEN
:
9784 vty_out(vty
, "%-30s: ", table_stats_strs
[i
]);
9785 vty_out(vty
, "%12.2f",
9787 ? (float)ts
.counts
[i
]
9789 [BGP_STATS_PREFIXES
]
9792 case BGP_STATS_SPACE
:
9793 vty_out(vty
, "%-30s: ", table_stats_strs
[i
]);
9794 vty_out(vty
, "%12g\n", ts
.total_space
);
9796 if (afi
== AFI_IP6
) {
9797 vty_out(vty
, "%30s: ", "/32 equivalent ");
9798 vty_out(vty
, "%12g\n",
9799 ts
.total_space
* pow(2.0, -128 + 32));
9800 vty_out(vty
, "%30s: ", "/48 equivalent ");
9801 vty_out(vty
, "%12g\n",
9802 ts
.total_space
* pow(2.0, -128 + 48));
9804 vty_out(vty
, "%30s: ", "% announced ");
9805 vty_out(vty
, "%12.2f\n",
9806 ts
.total_space
* 100. * pow(2.0, -32));
9807 vty_out(vty
, "%30s: ", "/8 equivalent ");
9808 vty_out(vty
, "%12.2f\n",
9809 ts
.total_space
* pow(2.0, -32 + 8));
9810 vty_out(vty
, "%30s: ", "/24 equivalent ");
9811 vty_out(vty
, "%12.2f\n",
9812 ts
.total_space
* pow(2.0, -32 + 24));
9816 vty_out(vty
, "%-30s: ", table_stats_strs
[i
]);
9817 vty_out(vty
, "%12llu", ts
.counts
[i
]);
9834 PCOUNT_PFCNT
, /* the figure we display to users */
9838 static const char *pcount_strs
[] = {
9839 [PCOUNT_ADJ_IN
] = "Adj-in",
9840 [PCOUNT_DAMPED
] = "Damped",
9841 [PCOUNT_REMOVED
] = "Removed",
9842 [PCOUNT_HISTORY
] = "History",
9843 [PCOUNT_STALE
] = "Stale",
9844 [PCOUNT_VALID
] = "Valid",
9845 [PCOUNT_ALL
] = "All RIB",
9846 [PCOUNT_COUNTED
] = "PfxCt counted",
9847 [PCOUNT_PFCNT
] = "Useable",
9848 [PCOUNT_MAX
] = NULL
,
9851 struct peer_pcounts
{
9852 unsigned int count
[PCOUNT_MAX
];
9853 const struct peer
*peer
;
9854 const struct bgp_table
*table
;
9857 static int bgp_peer_count_walker(struct thread
*t
)
9859 struct bgp_node
*rn
;
9860 struct peer_pcounts
*pc
= THREAD_ARG(t
);
9861 const struct peer
*peer
= pc
->peer
;
9863 for (rn
= bgp_table_top(pc
->table
); rn
; rn
= bgp_route_next(rn
)) {
9864 struct bgp_adj_in
*ain
;
9865 struct bgp_info
*ri
;
9867 for (ain
= rn
->adj_in
; ain
; ain
= ain
->next
)
9868 if (ain
->peer
== peer
)
9869 pc
->count
[PCOUNT_ADJ_IN
]++;
9871 for (ri
= rn
->info
; ri
; ri
= ri
->next
) {
9872 if (ri
->peer
!= peer
)
9875 pc
->count
[PCOUNT_ALL
]++;
9877 if (CHECK_FLAG(ri
->flags
, BGP_INFO_DAMPED
))
9878 pc
->count
[PCOUNT_DAMPED
]++;
9879 if (CHECK_FLAG(ri
->flags
, BGP_INFO_HISTORY
))
9880 pc
->count
[PCOUNT_HISTORY
]++;
9881 if (CHECK_FLAG(ri
->flags
, BGP_INFO_REMOVED
))
9882 pc
->count
[PCOUNT_REMOVED
]++;
9883 if (CHECK_FLAG(ri
->flags
, BGP_INFO_STALE
))
9884 pc
->count
[PCOUNT_STALE
]++;
9885 if (CHECK_FLAG(ri
->flags
, BGP_INFO_VALID
))
9886 pc
->count
[PCOUNT_VALID
]++;
9887 if (!CHECK_FLAG(ri
->flags
, BGP_INFO_UNUSEABLE
))
9888 pc
->count
[PCOUNT_PFCNT
]++;
9890 if (CHECK_FLAG(ri
->flags
, BGP_INFO_COUNTED
)) {
9891 pc
->count
[PCOUNT_COUNTED
]++;
9892 if (CHECK_FLAG(ri
->flags
, BGP_INFO_UNUSEABLE
))
9895 "Attempting to count but flags say it is unusable");
9897 if (!CHECK_FLAG(ri
->flags
, BGP_INFO_UNUSEABLE
))
9900 "Not counted but flags say we should");
9907 static int bgp_peer_counts(struct vty
*vty
, struct peer
*peer
, afi_t afi
,
9908 safi_t safi
, bool use_json
)
9910 struct peer_pcounts pcounts
= {.peer
= peer
};
9912 json_object
*json
= NULL
;
9913 json_object
*json_loop
= NULL
;
9916 json
= json_object_new_object();
9917 json_loop
= json_object_new_object();
9920 if (!peer
|| !peer
->bgp
|| !peer
->afc
[afi
][safi
]
9921 || !peer
->bgp
->rib
[afi
][safi
]) {
9923 json_object_string_add(
9925 "No such neighbor or address family");
9926 vty_out(vty
, "%s\n", json_object_to_json_string(json
));
9927 json_object_free(json
);
9929 vty_out(vty
, "%% No such neighbor or address family\n");
9934 memset(&pcounts
, 0, sizeof(pcounts
));
9935 pcounts
.peer
= peer
;
9936 pcounts
.table
= peer
->bgp
->rib
[afi
][safi
];
9938 /* in-place call via thread subsystem so as to record execution time
9939 * stats for the thread-walk (i.e. ensure this can't be blamed on
9940 * on just vty_read()).
9942 thread_execute(bm
->master
, bgp_peer_count_walker
, &pcounts
, 0);
9945 json_object_string_add(json
, "prefixCountsFor", peer
->host
);
9946 json_object_string_add(json
, "multiProtocol",
9947 afi_safi_print(afi
, safi
));
9948 json_object_int_add(json
, "pfxCounter",
9949 peer
->pcount
[afi
][safi
]);
9951 for (i
= 0; i
< PCOUNT_MAX
; i
++)
9952 json_object_int_add(json_loop
, pcount_strs
[i
],
9955 json_object_object_add(json
, "ribTableWalkCounters", json_loop
);
9957 if (pcounts
.count
[PCOUNT_PFCNT
] != peer
->pcount
[afi
][safi
]) {
9958 json_object_string_add(json
, "pfxctDriftFor",
9960 json_object_string_add(
9961 json
, "recommended",
9962 "Please report this bug, with the above command output");
9964 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
9965 json
, JSON_C_TO_STRING_PRETTY
));
9966 json_object_free(json
);
9970 && bgp_flag_check(peer
->bgp
, BGP_FLAG_SHOW_HOSTNAME
)) {
9971 vty_out(vty
, "Prefix counts for %s/%s, %s\n",
9972 peer
->hostname
, peer
->host
,
9973 afi_safi_print(afi
, safi
));
9975 vty_out(vty
, "Prefix counts for %s, %s\n", peer
->host
,
9976 afi_safi_print(afi
, safi
));
9979 vty_out(vty
, "PfxCt: %ld\n", peer
->pcount
[afi
][safi
]);
9980 vty_out(vty
, "\nCounts from RIB table walk:\n\n");
9982 for (i
= 0; i
< PCOUNT_MAX
; i
++)
9983 vty_out(vty
, "%20s: %-10d\n", pcount_strs
[i
],
9986 if (pcounts
.count
[PCOUNT_PFCNT
] != peer
->pcount
[afi
][safi
]) {
9987 vty_out(vty
, "%s [pcount] PfxCt drift!\n", peer
->host
);
9989 "Please report this bug, with the above command output\n");
9996 DEFUN (show_ip_bgp_instance_neighbor_prefix_counts
,
9997 show_ip_bgp_instance_neighbor_prefix_counts_cmd
,
9998 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_CMD_STR
"]] "
9999 "neighbors <A.B.C.D|X:X::X:X|WORD> prefix-counts [json]",
10003 BGP_INSTANCE_HELP_STR
10006 "Detailed information on TCP and BGP neighbor connections\n"
10007 "Neighbor to display information about\n"
10008 "Neighbor to display information about\n"
10009 "Neighbor on BGP configured interface\n"
10010 "Display detailed prefix count information\n"
10013 afi_t afi
= AFI_IP6
;
10014 safi_t safi
= SAFI_UNICAST
;
10017 struct bgp
*bgp
= NULL
;
10018 bool uj
= use_json(argc
, argv
);
10023 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
10026 return CMD_WARNING
;
10028 argv_find(argv
, argc
, "neighbors", &idx
);
10029 peer
= peer_lookup_in_view(vty
, bgp
, argv
[idx
+ 1]->arg
, uj
);
10031 return CMD_WARNING
;
10033 return bgp_peer_counts(vty
, peer
, AFI_IP
, SAFI_UNICAST
, uj
);
10036 #ifdef KEEP_OLD_VPN_COMMANDS
10037 DEFUN (show_ip_bgp_vpn_neighbor_prefix_counts
,
10038 show_ip_bgp_vpn_neighbor_prefix_counts_cmd
,
10039 "show [ip] bgp <vpnv4|vpnv6> all neighbors <A.B.C.D|X:X::X:X|WORD> prefix-counts [json]",
10044 "Display information about all VPNv4 NLRIs\n"
10045 "Detailed information on TCP and BGP neighbor connections\n"
10046 "Neighbor to display information about\n"
10047 "Neighbor to display information about\n"
10048 "Neighbor on BGP configured interface\n"
10049 "Display detailed prefix count information\n"
10054 bool uj
= use_json(argc
, argv
);
10056 peer
= peer_lookup_in_view(vty
, NULL
, argv
[idx_peer
]->arg
, uj
);
10058 return CMD_WARNING
;
10060 return bgp_peer_counts(vty
, peer
, AFI_IP
, SAFI_MPLS_VPN
, uj
);
10063 DEFUN (show_ip_bgp_vpn_all_route_prefix
,
10064 show_ip_bgp_vpn_all_route_prefix_cmd
,
10065 "show [ip] bgp <vpnv4|vpnv6> all <A.B.C.D|A.B.C.D/M> [json]",
10070 "Display information about all VPNv4 NLRIs\n"
10071 "Network in the BGP routing table to display\n"
10072 "Network in the BGP routing table to display\n"
10076 char *network
= NULL
;
10077 struct bgp
*bgp
= bgp_get_default();
10079 vty_out(vty
, "Can't find default instance\n");
10080 return CMD_WARNING
;
10083 if (argv_find(argv
, argc
, "A.B.C.D", &idx
))
10084 network
= argv
[idx
]->arg
;
10085 else if (argv_find(argv
, argc
, "A.B.C.D/M", &idx
))
10086 network
= argv
[idx
]->arg
;
10088 vty_out(vty
, "Unable to figure out Network\n");
10089 return CMD_WARNING
;
10092 return bgp_show_route(vty
, bgp
, network
, AFI_IP
, SAFI_MPLS_VPN
, NULL
, 0,
10093 BGP_PATH_ALL
, use_json(argc
, argv
));
10095 #endif /* KEEP_OLD_VPN_COMMANDS */
10097 DEFUN (show_ip_bgp_l2vpn_evpn_all_route_prefix
,
10098 show_ip_bgp_l2vpn_evpn_all_route_prefix_cmd
,
10099 "show [ip] bgp l2vpn evpn all <A.B.C.D|A.B.C.D/M> [json]",
10105 "Display information about all EVPN NLRIs\n"
10106 "Network in the BGP routing table to display\n"
10107 "Network in the BGP routing table to display\n"
10111 char *network
= NULL
;
10113 if (argv_find(argv
, argc
, "A.B.C.D", &idx
))
10114 network
= argv
[idx
]->arg
;
10115 else if (argv_find(argv
, argc
, "A.B.C.D/M", &idx
))
10116 network
= argv
[idx
]->arg
;
10118 vty_out(vty
, "Unable to figure out Network\n");
10119 return CMD_WARNING
;
10121 return bgp_show_route(vty
, NULL
, network
, AFI_L2VPN
, SAFI_EVPN
, NULL
, 0,
10122 BGP_PATH_ALL
, use_json(argc
, argv
));
10125 static void show_adj_route(struct vty
*vty
, struct peer
*peer
, afi_t afi
,
10126 safi_t safi
, enum bgp_show_adj_route_type type
,
10127 const char *rmap_name
, bool use_json
,
10130 struct bgp_table
*table
;
10131 struct bgp_adj_in
*ain
;
10132 struct bgp_adj_out
*adj
;
10133 unsigned long output_count
;
10134 unsigned long filtered_count
;
10135 struct bgp_node
*rn
;
10141 struct update_subgroup
*subgrp
;
10142 json_object
*json_scode
= NULL
;
10143 json_object
*json_ocode
= NULL
;
10144 json_object
*json_ar
= NULL
;
10145 struct peer_af
*paf
;
10146 bool route_filtered
;
10149 json_scode
= json_object_new_object();
10150 json_ocode
= json_object_new_object();
10151 json_ar
= json_object_new_object();
10153 json_object_string_add(json_scode
, "suppressed", "s");
10154 json_object_string_add(json_scode
, "damped", "d");
10155 json_object_string_add(json_scode
, "history", "h");
10156 json_object_string_add(json_scode
, "valid", "*");
10157 json_object_string_add(json_scode
, "best", ">");
10158 json_object_string_add(json_scode
, "multipath", "=");
10159 json_object_string_add(json_scode
, "internal", "i");
10160 json_object_string_add(json_scode
, "ribFailure", "r");
10161 json_object_string_add(json_scode
, "stale", "S");
10162 json_object_string_add(json_scode
, "removed", "R");
10164 json_object_string_add(json_ocode
, "igp", "i");
10165 json_object_string_add(json_ocode
, "egp", "e");
10166 json_object_string_add(json_ocode
, "incomplete", "?");
10173 json_object_string_add(json
, "alert", "no BGP");
10174 vty_out(vty
, "%s\n", json_object_to_json_string(json
));
10175 json_object_free(json
);
10177 vty_out(vty
, "%% No bgp\n");
10181 table
= bgp
->rib
[afi
][safi
];
10183 output_count
= filtered_count
= 0;
10184 subgrp
= peer_subgroup(peer
, afi
, safi
);
10186 if (type
== bgp_show_adj_route_advertised
&& subgrp
10187 && CHECK_FLAG(subgrp
->sflags
, SUBGRP_STATUS_DEFAULT_ORIGINATE
)) {
10189 json_object_int_add(json
, "bgpTableVersion",
10191 json_object_string_add(json
, "bgpLocalRouterId",
10192 inet_ntoa(bgp
->router_id
));
10193 json_object_object_add(json
, "bgpStatusCodes",
10195 json_object_object_add(json
, "bgpOriginCodes",
10197 json_object_string_add(
10198 json
, "bgpOriginatingDefaultNetwork",
10199 (afi
== AFI_IP
) ? "0.0.0.0/0" : "::/0");
10201 vty_out(vty
, "BGP table version is %" PRIu64
10202 ", local router ID is %s, vrf id ",
10203 table
->version
, inet_ntoa(bgp
->router_id
));
10204 if (bgp
->vrf_id
== VRF_UNKNOWN
)
10205 vty_out(vty
, "%s", VRFID_NONE_STR
);
10207 vty_out(vty
, "%u", bgp
->vrf_id
);
10208 vty_out(vty
, "\n");
10209 vty_out(vty
, BGP_SHOW_SCODE_HEADER
);
10210 vty_out(vty
, BGP_SHOW_NCODE_HEADER
);
10211 vty_out(vty
, BGP_SHOW_OCODE_HEADER
);
10213 vty_out(vty
, "Originating default network %s\n\n",
10214 (afi
== AFI_IP
) ? "0.0.0.0/0" : "::/0");
10219 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
)) {
10220 if (type
== bgp_show_adj_route_received
10221 || type
== bgp_show_adj_route_filtered
) {
10222 for (ain
= rn
->adj_in
; ain
; ain
= ain
->next
) {
10223 if (ain
->peer
!= peer
|| !ain
->attr
)
10228 json_object_int_add(
10229 json
, "bgpTableVersion",
10231 json_object_string_add(
10233 "bgpLocalRouterId",
10236 json_object_object_add(
10237 json
, "bgpStatusCodes",
10239 json_object_object_add(
10240 json
, "bgpOriginCodes",
10244 "BGP table version is 0, local router ID is %s, vrf id ",
10247 if (bgp
->vrf_id
== VRF_UNKNOWN
)
10253 vty_out(vty
, "\n");
10255 BGP_SHOW_SCODE_HEADER
);
10257 BGP_SHOW_NCODE_HEADER
);
10259 BGP_SHOW_OCODE_HEADER
);
10265 vty_out(vty
, BGP_SHOW_HEADER
);
10269 bgp_attr_dup(&attr
, ain
->attr
);
10270 route_filtered
= false;
10272 /* Filter prefix using distribute list,
10273 * filter list or prefix list
10275 if ((bgp_input_filter(peer
, &rn
->p
, &attr
, afi
,
10276 safi
)) == FILTER_DENY
)
10277 route_filtered
= true;
10279 /* Filter prefix using route-map */
10280 ret
= bgp_input_modifier(peer
, &rn
->p
, &attr
,
10281 afi
, safi
, rmap_name
);
10283 if (type
== bgp_show_adj_route_filtered
&&
10284 !route_filtered
&& ret
!= RMAP_DENY
) {
10285 bgp_attr_undup(&attr
, ain
->attr
);
10289 if (type
== bgp_show_adj_route_received
&&
10290 (route_filtered
|| ret
== RMAP_DENY
))
10293 route_vty_out_tmp(vty
, &rn
->p
, &attr
, safi
,
10294 use_json
, json_ar
);
10295 bgp_attr_undup(&attr
, ain
->attr
);
10298 } else if (type
== bgp_show_adj_route_advertised
) {
10299 for (adj
= rn
->adj_out
; adj
; adj
= adj
->next
)
10300 SUBGRP_FOREACH_PEER (adj
->subgroup
, paf
) {
10301 if (paf
->peer
!= peer
|| !adj
->attr
)
10306 json_object_int_add(
10310 json_object_string_add(
10312 "bgpLocalRouterId",
10315 json_object_object_add(
10319 json_object_object_add(
10325 "BGP table version is %" PRIu64
10326 ", local router ID is %s, vrf id ",
10339 vty_out(vty
, "\n");
10341 BGP_SHOW_SCODE_HEADER
);
10343 BGP_SHOW_NCODE_HEADER
);
10345 BGP_SHOW_OCODE_HEADER
);
10356 bgp_attr_dup(&attr
, adj
->attr
);
10357 ret
= bgp_output_modifier(
10358 peer
, &rn
->p
, &attr
, afi
, safi
,
10361 if (ret
!= RMAP_DENY
) {
10362 route_vty_out_tmp(vty
, &rn
->p
,
10371 bgp_attr_undup(&attr
, adj
->attr
);
10377 json_object_object_add(json
, "advertisedRoutes", json_ar
);
10378 json_object_int_add(json
, "totalPrefixCounter", output_count
);
10379 json_object_int_add(json
, "filteredPrefixCounter",
10382 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
10383 json
, JSON_C_TO_STRING_PRETTY
));
10384 json_object_free(json
);
10385 } else if (output_count
> 0) {
10386 if (filtered_count
> 0)
10388 "\nTotal number of prefixes %ld (%ld filtered)\n",
10389 output_count
, filtered_count
);
10391 vty_out(vty
, "\nTotal number of prefixes %ld\n",
10396 static int peer_adj_routes(struct vty
*vty
, struct peer
*peer
, afi_t afi
,
10397 safi_t safi
, enum bgp_show_adj_route_type type
,
10398 const char *rmap_name
, bool use_json
)
10400 json_object
*json
= NULL
;
10403 json
= json_object_new_object();
10405 /* labeled-unicast routes live in the unicast table */
10406 if (safi
== SAFI_LABELED_UNICAST
)
10407 safi
= SAFI_UNICAST
;
10409 if (!peer
|| !peer
->afc
[afi
][safi
]) {
10411 json_object_string_add(
10413 "No such neighbor or address family");
10414 vty_out(vty
, "%s\n", json_object_to_json_string(json
));
10415 json_object_free(json
);
10417 vty_out(vty
, "%% No such neighbor or address family\n");
10419 return CMD_WARNING
;
10422 if ((type
== bgp_show_adj_route_received
10423 || type
== bgp_show_adj_route_filtered
)
10424 && !CHECK_FLAG(peer
->af_flags
[afi
][safi
],
10425 PEER_FLAG_SOFT_RECONFIG
)) {
10427 json_object_string_add(
10429 "Inbound soft reconfiguration not enabled");
10430 vty_out(vty
, "%s\n", json_object_to_json_string(json
));
10431 json_object_free(json
);
10434 "%% Inbound soft reconfiguration not enabled\n");
10436 return CMD_WARNING
;
10439 show_adj_route(vty
, peer
, afi
, safi
, type
, rmap_name
, use_json
, json
);
10441 return CMD_SUCCESS
;
10444 DEFUN (show_ip_bgp_instance_neighbor_advertised_route
,
10445 show_ip_bgp_instance_neighbor_advertised_route_cmd
,
10446 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]] "
10447 "neighbors <A.B.C.D|X:X::X:X|WORD> <advertised-routes|received-routes|filtered-routes> [route-map WORD] [json]",
10451 BGP_INSTANCE_HELP_STR
10453 BGP_SAFI_WITH_LABEL_HELP_STR
10454 "Detailed information on TCP and BGP neighbor connections\n"
10455 "Neighbor to display information about\n"
10456 "Neighbor to display information about\n"
10457 "Neighbor on BGP configured interface\n"
10458 "Display the routes advertised to a BGP neighbor\n"
10459 "Display the received routes from neighbor\n"
10460 "Display the filtered routes received from neighbor\n"
10461 "Route-map to modify the attributes\n"
10462 "Name of the route map\n"
10465 afi_t afi
= AFI_IP6
;
10466 safi_t safi
= SAFI_UNICAST
;
10467 char *rmap_name
= NULL
;
10468 char *peerstr
= NULL
;
10469 struct bgp
*bgp
= NULL
;
10471 enum bgp_show_adj_route_type type
= bgp_show_adj_route_advertised
;
10473 bool uj
= use_json(argc
, argv
);
10478 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
10481 return CMD_WARNING
;
10483 /* neighbors <A.B.C.D|X:X::X:X|WORD> */
10484 argv_find(argv
, argc
, "neighbors", &idx
);
10485 peerstr
= argv
[++idx
]->arg
;
10487 peer
= peer_lookup_in_view(vty
, bgp
, peerstr
, uj
);
10489 return CMD_WARNING
;
10491 if (argv_find(argv
, argc
, "advertised-routes", &idx
))
10492 type
= bgp_show_adj_route_advertised
;
10493 else if (argv_find(argv
, argc
, "received-routes", &idx
))
10494 type
= bgp_show_adj_route_received
;
10495 else if (argv_find(argv
, argc
, "filtered-routes", &idx
))
10496 type
= bgp_show_adj_route_filtered
;
10498 if (argv_find(argv
, argc
, "route-map", &idx
))
10499 rmap_name
= argv
[++idx
]->arg
;
10501 return peer_adj_routes(vty
, peer
, afi
, safi
, type
, rmap_name
, uj
);
10504 DEFUN (show_ip_bgp_neighbor_received_prefix_filter
,
10505 show_ip_bgp_neighbor_received_prefix_filter_cmd
,
10506 "show [ip] bgp [<ipv4|ipv6> [unicast]] neighbors <A.B.C.D|X:X::X:X|WORD> received prefix-filter [json]",
10512 "Address Family modifier\n"
10513 "Detailed information on TCP and BGP neighbor connections\n"
10514 "Neighbor to display information about\n"
10515 "Neighbor to display information about\n"
10516 "Neighbor on BGP configured interface\n"
10517 "Display information received from a BGP neighbor\n"
10518 "Display the prefixlist filter\n"
10521 afi_t afi
= AFI_IP6
;
10522 safi_t safi
= SAFI_UNICAST
;
10523 char *peerstr
= NULL
;
10526 union sockunion su
;
10532 /* show [ip] bgp */
10533 if (argv_find(argv
, argc
, "ip", &idx
))
10535 /* [<ipv4|ipv6> [unicast]] */
10536 if (argv_find(argv
, argc
, "ipv4", &idx
))
10538 if (argv_find(argv
, argc
, "ipv6", &idx
))
10540 /* neighbors <A.B.C.D|X:X::X:X|WORD> */
10541 argv_find(argv
, argc
, "neighbors", &idx
);
10542 peerstr
= argv
[++idx
]->arg
;
10544 bool uj
= use_json(argc
, argv
);
10546 ret
= str2sockunion(peerstr
, &su
);
10548 peer
= peer_lookup_by_conf_if(NULL
, peerstr
);
10551 vty_out(vty
, "{}\n");
10554 "%% Malformed address or name: %s\n",
10556 return CMD_WARNING
;
10559 peer
= peer_lookup(NULL
, &su
);
10562 vty_out(vty
, "{}\n");
10564 vty_out(vty
, "No peer\n");
10565 return CMD_WARNING
;
10569 sprintf(name
, "%s.%d.%d", peer
->host
, afi
, safi
);
10570 count
= prefix_bgp_show_prefix_list(NULL
, afi
, name
, uj
);
10573 vty_out(vty
, "Address Family: %s\n",
10574 afi_safi_print(afi
, safi
));
10575 prefix_bgp_show_prefix_list(vty
, afi
, name
, uj
);
10578 vty_out(vty
, "{}\n");
10580 vty_out(vty
, "No functional output\n");
10583 return CMD_SUCCESS
;
10586 static int bgp_show_neighbor_route(struct vty
*vty
, struct peer
*peer
,
10587 afi_t afi
, safi_t safi
,
10588 enum bgp_show_type type
, bool use_json
)
10590 /* labeled-unicast routes live in the unicast table */
10591 if (safi
== SAFI_LABELED_UNICAST
)
10592 safi
= SAFI_UNICAST
;
10594 if (!peer
|| !peer
->afc
[afi
][safi
]) {
10596 json_object
*json_no
= NULL
;
10597 json_no
= json_object_new_object();
10598 json_object_string_add(
10599 json_no
, "warning",
10600 "No such neighbor or address family");
10601 vty_out(vty
, "%s\n",
10602 json_object_to_json_string(json_no
));
10603 json_object_free(json_no
);
10605 vty_out(vty
, "%% No such neighbor or address family\n");
10606 return CMD_WARNING
;
10609 return bgp_show(vty
, peer
->bgp
, afi
, safi
, type
, &peer
->su
, use_json
);
10612 DEFUN (show_ip_bgp_flowspec_routes_detailed
,
10613 show_ip_bgp_flowspec_routes_detailed_cmd
,
10614 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" flowspec] detail [json]",
10618 BGP_INSTANCE_HELP_STR
10621 "Detailed information on flowspec entries\n"
10624 afi_t afi
= AFI_IP
;
10625 safi_t safi
= SAFI_UNICAST
;
10626 struct bgp
*bgp
= NULL
;
10628 bool uj
= use_json(argc
, argv
);
10633 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
10636 return CMD_WARNING
;
10638 return bgp_show(vty
, bgp
, afi
, safi
, bgp_show_type_detail
, NULL
, uj
);
10641 DEFUN (show_ip_bgp_neighbor_routes
,
10642 show_ip_bgp_neighbor_routes_cmd
,
10643 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]] "
10644 "neighbors <A.B.C.D|X:X::X:X|WORD> <flap-statistics|dampened-routes|routes> [json]",
10648 BGP_INSTANCE_HELP_STR
10650 BGP_SAFI_WITH_LABEL_HELP_STR
10651 "Detailed information on TCP and BGP neighbor connections\n"
10652 "Neighbor to display information about\n"
10653 "Neighbor to display information about\n"
10654 "Neighbor on BGP configured interface\n"
10655 "Display flap statistics of the routes learned from neighbor\n"
10656 "Display the dampened routes received from neighbor\n"
10657 "Display routes learned from neighbor\n"
10660 char *peerstr
= NULL
;
10661 struct bgp
*bgp
= NULL
;
10662 afi_t afi
= AFI_IP6
;
10663 safi_t safi
= SAFI_UNICAST
;
10665 enum bgp_show_type sh_type
= bgp_show_type_neighbor
;
10667 bool uj
= use_json(argc
, argv
);
10672 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
10675 return CMD_WARNING
;
10677 /* neighbors <A.B.C.D|X:X::X:X|WORD> */
10678 argv_find(argv
, argc
, "neighbors", &idx
);
10679 peerstr
= argv
[++idx
]->arg
;
10681 peer
= peer_lookup_in_view(vty
, bgp
, peerstr
, uj
);
10683 return CMD_WARNING
;
10685 if (argv_find(argv
, argc
, "flap-statistics", &idx
))
10686 sh_type
= bgp_show_type_flap_neighbor
;
10687 else if (argv_find(argv
, argc
, "dampened-routes", &idx
))
10688 sh_type
= bgp_show_type_damp_neighbor
;
10689 else if (argv_find(argv
, argc
, "routes", &idx
))
10690 sh_type
= bgp_show_type_neighbor
;
10692 return bgp_show_neighbor_route(vty
, peer
, afi
, safi
, sh_type
, uj
);
10695 struct bgp_table
*bgp_distance_table
[AFI_MAX
][SAFI_MAX
];
10697 struct bgp_distance
{
10698 /* Distance value for the IP source prefix. */
10701 /* Name of the access-list to be matched. */
10705 DEFUN (show_bgp_afi_vpn_rd_route
,
10706 show_bgp_afi_vpn_rd_route_cmd
,
10707 "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]",
10711 "Address Family modifier\n"
10712 "Display information for a route distinguisher\n"
10713 "Route Distinguisher\n"
10714 "Network in the BGP routing table to display\n"
10715 "Network in the BGP routing table to display\n"
10719 struct prefix_rd prd
;
10720 afi_t afi
= AFI_MAX
;
10723 if (!argv_find_and_parse_afi(argv
, argc
, &idx
, &afi
)) {
10724 vty_out(vty
, "%% Malformed Address Family\n");
10725 return CMD_WARNING
;
10728 ret
= str2prefix_rd(argv
[5]->arg
, &prd
);
10730 vty_out(vty
, "%% Malformed Route Distinguisher\n");
10731 return CMD_WARNING
;
10734 return bgp_show_route(vty
, NULL
, argv
[6]->arg
, afi
, SAFI_MPLS_VPN
, &prd
,
10735 0, BGP_PATH_ALL
, use_json(argc
, argv
));
10738 static struct bgp_distance
*bgp_distance_new(void)
10740 return XCALLOC(MTYPE_BGP_DISTANCE
, sizeof(struct bgp_distance
));
10743 static void bgp_distance_free(struct bgp_distance
*bdistance
)
10745 XFREE(MTYPE_BGP_DISTANCE
, bdistance
);
10748 static int bgp_distance_set(struct vty
*vty
, const char *distance_str
,
10749 const char *ip_str
, const char *access_list_str
)
10756 struct bgp_node
*rn
;
10757 struct bgp_distance
*bdistance
;
10759 afi
= bgp_node_afi(vty
);
10760 safi
= bgp_node_safi(vty
);
10762 ret
= str2prefix(ip_str
, &p
);
10764 vty_out(vty
, "Malformed prefix\n");
10765 return CMD_WARNING_CONFIG_FAILED
;
10768 distance
= atoi(distance_str
);
10770 /* Get BGP distance node. */
10771 rn
= bgp_node_get(bgp_distance_table
[afi
][safi
], (struct prefix
*)&p
);
10773 bdistance
= rn
->info
;
10774 bgp_unlock_node(rn
);
10776 bdistance
= bgp_distance_new();
10777 rn
->info
= bdistance
;
10780 /* Set distance value. */
10781 bdistance
->distance
= distance
;
10783 /* Reset access-list configuration. */
10784 if (bdistance
->access_list
) {
10785 XFREE(MTYPE_AS_LIST
, bdistance
->access_list
);
10786 bdistance
->access_list
= NULL
;
10788 if (access_list_str
)
10789 bdistance
->access_list
=
10790 XSTRDUP(MTYPE_AS_LIST
, access_list_str
);
10792 return CMD_SUCCESS
;
10795 static int bgp_distance_unset(struct vty
*vty
, const char *distance_str
,
10796 const char *ip_str
, const char *access_list_str
)
10803 struct bgp_node
*rn
;
10804 struct bgp_distance
*bdistance
;
10806 afi
= bgp_node_afi(vty
);
10807 safi
= bgp_node_safi(vty
);
10809 ret
= str2prefix(ip_str
, &p
);
10811 vty_out(vty
, "Malformed prefix\n");
10812 return CMD_WARNING_CONFIG_FAILED
;
10815 rn
= bgp_node_lookup(bgp_distance_table
[afi
][safi
],
10816 (struct prefix
*)&p
);
10818 vty_out(vty
, "Can't find specified prefix\n");
10819 return CMD_WARNING_CONFIG_FAILED
;
10822 bdistance
= rn
->info
;
10823 distance
= atoi(distance_str
);
10825 if (bdistance
->distance
!= distance
) {
10826 vty_out(vty
, "Distance does not match configured\n");
10827 return CMD_WARNING_CONFIG_FAILED
;
10830 if (bdistance
->access_list
)
10831 XFREE(MTYPE_AS_LIST
, bdistance
->access_list
);
10832 bgp_distance_free(bdistance
);
10835 bgp_unlock_node(rn
);
10836 bgp_unlock_node(rn
);
10838 return CMD_SUCCESS
;
10841 /* Apply BGP information to distance method. */
10842 uint8_t bgp_distance_apply(struct prefix
*p
, struct bgp_info
*rinfo
, afi_t afi
,
10843 safi_t safi
, struct bgp
*bgp
)
10845 struct bgp_node
*rn
;
10848 struct bgp_distance
*bdistance
;
10849 struct access_list
*alist
;
10850 struct bgp_static
*bgp_static
;
10855 peer
= rinfo
->peer
;
10857 /* Check source address. */
10858 sockunion2hostprefix(&peer
->su
, &q
);
10859 rn
= bgp_node_match(bgp_distance_table
[afi
][safi
], &q
);
10861 bdistance
= rn
->info
;
10862 bgp_unlock_node(rn
);
10864 if (bdistance
->access_list
) {
10865 alist
= access_list_lookup(afi
, bdistance
->access_list
);
10867 && access_list_apply(alist
, p
) == FILTER_PERMIT
)
10868 return bdistance
->distance
;
10870 return bdistance
->distance
;
10873 /* Backdoor check. */
10874 rn
= bgp_node_lookup(bgp
->route
[afi
][safi
], p
);
10876 bgp_static
= rn
->info
;
10877 bgp_unlock_node(rn
);
10879 if (bgp_static
->backdoor
) {
10880 if (bgp
->distance_local
[afi
][safi
])
10881 return bgp
->distance_local
[afi
][safi
];
10883 return ZEBRA_IBGP_DISTANCE_DEFAULT
;
10887 if (peer
->sort
== BGP_PEER_EBGP
) {
10888 if (bgp
->distance_ebgp
[afi
][safi
])
10889 return bgp
->distance_ebgp
[afi
][safi
];
10890 return ZEBRA_EBGP_DISTANCE_DEFAULT
;
10892 if (bgp
->distance_ibgp
[afi
][safi
])
10893 return bgp
->distance_ibgp
[afi
][safi
];
10894 return ZEBRA_IBGP_DISTANCE_DEFAULT
;
10898 DEFUN (bgp_distance
,
10900 "distance bgp (1-255) (1-255) (1-255)",
10901 "Define an administrative distance\n"
10903 "Distance for routes external to the AS\n"
10904 "Distance for routes internal to the AS\n"
10905 "Distance for local routes\n")
10907 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
10908 int idx_number
= 2;
10909 int idx_number_2
= 3;
10910 int idx_number_3
= 4;
10914 afi
= bgp_node_afi(vty
);
10915 safi
= bgp_node_safi(vty
);
10917 bgp
->distance_ebgp
[afi
][safi
] = atoi(argv
[idx_number
]->arg
);
10918 bgp
->distance_ibgp
[afi
][safi
] = atoi(argv
[idx_number_2
]->arg
);
10919 bgp
->distance_local
[afi
][safi
] = atoi(argv
[idx_number_3
]->arg
);
10920 return CMD_SUCCESS
;
10923 DEFUN (no_bgp_distance
,
10924 no_bgp_distance_cmd
,
10925 "no distance bgp [(1-255) (1-255) (1-255)]",
10927 "Define an administrative distance\n"
10929 "Distance for routes external to the AS\n"
10930 "Distance for routes internal to the AS\n"
10931 "Distance for local routes\n")
10933 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
10937 afi
= bgp_node_afi(vty
);
10938 safi
= bgp_node_safi(vty
);
10940 bgp
->distance_ebgp
[afi
][safi
] = 0;
10941 bgp
->distance_ibgp
[afi
][safi
] = 0;
10942 bgp
->distance_local
[afi
][safi
] = 0;
10943 return CMD_SUCCESS
;
10947 DEFUN (bgp_distance_source
,
10948 bgp_distance_source_cmd
,
10949 "distance (1-255) A.B.C.D/M",
10950 "Define an administrative distance\n"
10951 "Administrative distance\n"
10952 "IP source prefix\n")
10954 int idx_number
= 1;
10955 int idx_ipv4_prefixlen
= 2;
10956 bgp_distance_set(vty
, argv
[idx_number
]->arg
,
10957 argv
[idx_ipv4_prefixlen
]->arg
, NULL
);
10958 return CMD_SUCCESS
;
10961 DEFUN (no_bgp_distance_source
,
10962 no_bgp_distance_source_cmd
,
10963 "no distance (1-255) A.B.C.D/M",
10965 "Define an administrative distance\n"
10966 "Administrative distance\n"
10967 "IP source prefix\n")
10969 int idx_number
= 2;
10970 int idx_ipv4_prefixlen
= 3;
10971 bgp_distance_unset(vty
, argv
[idx_number
]->arg
,
10972 argv
[idx_ipv4_prefixlen
]->arg
, NULL
);
10973 return CMD_SUCCESS
;
10976 DEFUN (bgp_distance_source_access_list
,
10977 bgp_distance_source_access_list_cmd
,
10978 "distance (1-255) A.B.C.D/M WORD",
10979 "Define an administrative distance\n"
10980 "Administrative distance\n"
10981 "IP source prefix\n"
10982 "Access list name\n")
10984 int idx_number
= 1;
10985 int idx_ipv4_prefixlen
= 2;
10987 bgp_distance_set(vty
, argv
[idx_number
]->arg
,
10988 argv
[idx_ipv4_prefixlen
]->arg
, argv
[idx_word
]->arg
);
10989 return CMD_SUCCESS
;
10992 DEFUN (no_bgp_distance_source_access_list
,
10993 no_bgp_distance_source_access_list_cmd
,
10994 "no distance (1-255) A.B.C.D/M WORD",
10996 "Define an administrative distance\n"
10997 "Administrative distance\n"
10998 "IP source prefix\n"
10999 "Access list name\n")
11001 int idx_number
= 2;
11002 int idx_ipv4_prefixlen
= 3;
11004 bgp_distance_unset(vty
, argv
[idx_number
]->arg
,
11005 argv
[idx_ipv4_prefixlen
]->arg
, argv
[idx_word
]->arg
);
11006 return CMD_SUCCESS
;
11009 DEFUN (ipv6_bgp_distance_source
,
11010 ipv6_bgp_distance_source_cmd
,
11011 "distance (1-255) X:X::X:X/M",
11012 "Define an administrative distance\n"
11013 "Administrative distance\n"
11014 "IP source prefix\n")
11016 bgp_distance_set(vty
, argv
[1]->arg
, argv
[2]->arg
, NULL
);
11017 return CMD_SUCCESS
;
11020 DEFUN (no_ipv6_bgp_distance_source
,
11021 no_ipv6_bgp_distance_source_cmd
,
11022 "no distance (1-255) X:X::X:X/M",
11024 "Define an administrative distance\n"
11025 "Administrative distance\n"
11026 "IP source prefix\n")
11028 bgp_distance_unset(vty
, argv
[2]->arg
, argv
[3]->arg
, NULL
);
11029 return CMD_SUCCESS
;
11032 DEFUN (ipv6_bgp_distance_source_access_list
,
11033 ipv6_bgp_distance_source_access_list_cmd
,
11034 "distance (1-255) X:X::X:X/M WORD",
11035 "Define an administrative distance\n"
11036 "Administrative distance\n"
11037 "IP source prefix\n"
11038 "Access list name\n")
11040 bgp_distance_set(vty
, argv
[1]->arg
, argv
[2]->arg
, argv
[3]->arg
);
11041 return CMD_SUCCESS
;
11044 DEFUN (no_ipv6_bgp_distance_source_access_list
,
11045 no_ipv6_bgp_distance_source_access_list_cmd
,
11046 "no distance (1-255) X:X::X:X/M WORD",
11048 "Define an administrative distance\n"
11049 "Administrative distance\n"
11050 "IP source prefix\n"
11051 "Access list name\n")
11053 bgp_distance_unset(vty
, argv
[2]->arg
, argv
[3]->arg
, argv
[4]->arg
);
11054 return CMD_SUCCESS
;
11057 DEFUN (bgp_damp_set
,
11059 "bgp dampening [(1-45) [(1-20000) (1-20000) (1-255)]]",
11060 "BGP Specific commands\n"
11061 "Enable route-flap dampening\n"
11062 "Half-life time for the penalty\n"
11063 "Value to start reusing a route\n"
11064 "Value to start suppressing a route\n"
11065 "Maximum duration to suppress a stable route\n")
11067 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
11068 int idx_half_life
= 2;
11070 int idx_suppress
= 4;
11071 int idx_max_suppress
= 5;
11072 int half
= DEFAULT_HALF_LIFE
* 60;
11073 int reuse
= DEFAULT_REUSE
;
11074 int suppress
= DEFAULT_SUPPRESS
;
11075 int max
= 4 * half
;
11078 half
= atoi(argv
[idx_half_life
]->arg
) * 60;
11079 reuse
= atoi(argv
[idx_reuse
]->arg
);
11080 suppress
= atoi(argv
[idx_suppress
]->arg
);
11081 max
= atoi(argv
[idx_max_suppress
]->arg
) * 60;
11082 } else if (argc
== 3) {
11083 half
= atoi(argv
[idx_half_life
]->arg
) * 60;
11087 if (suppress
< reuse
) {
11089 "Suppress value cannot be less than reuse value \n");
11093 return bgp_damp_enable(bgp
, bgp_node_afi(vty
), bgp_node_safi(vty
), half
,
11094 reuse
, suppress
, max
);
11097 DEFUN (bgp_damp_unset
,
11098 bgp_damp_unset_cmd
,
11099 "no bgp dampening [(1-45) [(1-20000) (1-20000) (1-255)]]",
11101 "BGP Specific commands\n"
11102 "Enable route-flap dampening\n"
11103 "Half-life time for the penalty\n"
11104 "Value to start reusing a route\n"
11105 "Value to start suppressing a route\n"
11106 "Maximum duration to suppress a stable route\n")
11108 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
11109 return bgp_damp_disable(bgp
, bgp_node_afi(vty
), bgp_node_safi(vty
));
11112 /* Display specified route of BGP table. */
11113 static int bgp_clear_damp_route(struct vty
*vty
, const char *view_name
,
11114 const char *ip_str
, afi_t afi
, safi_t safi
,
11115 struct prefix_rd
*prd
, int prefix_check
)
11118 struct prefix match
;
11119 struct bgp_node
*rn
;
11120 struct bgp_node
*rm
;
11121 struct bgp_info
*ri
;
11122 struct bgp_info
*ri_temp
;
11124 struct bgp_table
*table
;
11126 /* BGP structure lookup. */
11128 bgp
= bgp_lookup_by_name(view_name
);
11130 vty_out(vty
, "%% Can't find BGP instance %s\n",
11132 return CMD_WARNING
;
11135 bgp
= bgp_get_default();
11137 vty_out(vty
, "%% No BGP process is configured\n");
11138 return CMD_WARNING
;
11142 /* Check IP address argument. */
11143 ret
= str2prefix(ip_str
, &match
);
11145 vty_out(vty
, "%% address is malformed\n");
11146 return CMD_WARNING
;
11149 match
.family
= afi2family(afi
);
11151 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_ENCAP
)
11152 || (safi
== SAFI_EVPN
)) {
11153 for (rn
= bgp_table_top(bgp
->rib
[AFI_IP
][safi
]); rn
;
11154 rn
= bgp_route_next(rn
)) {
11155 if (prd
&& memcmp(rn
->p
.u
.val
, prd
->val
, 8) != 0)
11157 if ((table
= rn
->info
) == NULL
)
11159 if ((rm
= bgp_node_match(table
, &match
)) == NULL
)
11163 || rm
->p
.prefixlen
== match
.prefixlen
) {
11166 if (ri
->extra
&& ri
->extra
->damp_info
) {
11167 ri_temp
= ri
->next
;
11168 bgp_damp_info_free(
11169 ri
->extra
->damp_info
,
11177 bgp_unlock_node(rm
);
11180 if ((rn
= bgp_node_match(bgp
->rib
[afi
][safi
], &match
))
11183 || rn
->p
.prefixlen
== match
.prefixlen
) {
11186 if (ri
->extra
&& ri
->extra
->damp_info
) {
11187 ri_temp
= ri
->next
;
11188 bgp_damp_info_free(
11189 ri
->extra
->damp_info
,
11197 bgp_unlock_node(rn
);
11201 return CMD_SUCCESS
;
11204 DEFUN (clear_ip_bgp_dampening
,
11205 clear_ip_bgp_dampening_cmd
,
11206 "clear ip bgp dampening",
11210 "Clear route flap dampening information\n")
11212 bgp_damp_info_clean();
11213 return CMD_SUCCESS
;
11216 DEFUN (clear_ip_bgp_dampening_prefix
,
11217 clear_ip_bgp_dampening_prefix_cmd
,
11218 "clear ip bgp dampening A.B.C.D/M",
11222 "Clear route flap dampening information\n"
11225 int idx_ipv4_prefixlen
= 4;
11226 return bgp_clear_damp_route(vty
, NULL
, argv
[idx_ipv4_prefixlen
]->arg
,
11227 AFI_IP
, SAFI_UNICAST
, NULL
, 1);
11230 DEFUN (clear_ip_bgp_dampening_address
,
11231 clear_ip_bgp_dampening_address_cmd
,
11232 "clear ip bgp dampening A.B.C.D",
11236 "Clear route flap dampening information\n"
11237 "Network to clear damping information\n")
11240 return bgp_clear_damp_route(vty
, NULL
, argv
[idx_ipv4
]->arg
, AFI_IP
,
11241 SAFI_UNICAST
, NULL
, 0);
11244 DEFUN (clear_ip_bgp_dampening_address_mask
,
11245 clear_ip_bgp_dampening_address_mask_cmd
,
11246 "clear ip bgp dampening A.B.C.D A.B.C.D",
11250 "Clear route flap dampening information\n"
11251 "Network to clear damping information\n"
11255 int idx_ipv4_2
= 5;
11257 char prefix_str
[BUFSIZ
];
11259 ret
= netmask_str2prefix_str(argv
[idx_ipv4
]->arg
, argv
[idx_ipv4_2
]->arg
,
11262 vty_out(vty
, "%% Inconsistent address and mask\n");
11263 return CMD_WARNING
;
11266 return bgp_clear_damp_route(vty
, NULL
, prefix_str
, AFI_IP
, SAFI_UNICAST
,
11270 /* also used for encap safi */
11271 static void bgp_config_write_network_vpn(struct vty
*vty
, struct bgp
*bgp
,
11272 afi_t afi
, safi_t safi
)
11274 struct bgp_node
*prn
;
11275 struct bgp_node
*rn
;
11276 struct bgp_table
*table
;
11278 struct prefix_rd
*prd
;
11279 struct bgp_static
*bgp_static
;
11280 mpls_label_t label
;
11281 char buf
[SU_ADDRSTRLEN
];
11282 char rdbuf
[RD_ADDRSTRLEN
];
11284 /* Network configuration. */
11285 for (prn
= bgp_table_top(bgp
->route
[afi
][safi
]); prn
;
11286 prn
= bgp_route_next(prn
)) {
11287 if ((table
= prn
->info
) == NULL
)
11290 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
)) {
11291 if ((bgp_static
= rn
->info
) == NULL
)
11295 prd
= (struct prefix_rd
*)&prn
->p
;
11297 /* "network" configuration display. */
11298 prefix_rd2str(prd
, rdbuf
, sizeof(rdbuf
));
11299 label
= decode_label(&bgp_static
->label
);
11301 vty_out(vty
, " network %s/%d rd %s",
11302 inet_ntop(p
->family
, &p
->u
.prefix
, buf
,
11304 p
->prefixlen
, rdbuf
);
11305 if (safi
== SAFI_MPLS_VPN
)
11306 vty_out(vty
, " label %u", label
);
11308 if (bgp_static
->rmap
.name
)
11309 vty_out(vty
, " route-map %s",
11310 bgp_static
->rmap
.name
);
11312 if (bgp_static
->backdoor
)
11313 vty_out(vty
, " backdoor");
11315 vty_out(vty
, "\n");
11320 static void bgp_config_write_network_evpn(struct vty
*vty
, struct bgp
*bgp
,
11321 afi_t afi
, safi_t safi
)
11323 struct bgp_node
*prn
;
11324 struct bgp_node
*rn
;
11325 struct bgp_table
*table
;
11327 struct prefix_rd
*prd
;
11328 struct bgp_static
*bgp_static
;
11329 char buf
[PREFIX_STRLEN
* 2];
11330 char buf2
[SU_ADDRSTRLEN
];
11331 char rdbuf
[RD_ADDRSTRLEN
];
11333 /* Network configuration. */
11334 for (prn
= bgp_table_top(bgp
->route
[afi
][safi
]); prn
;
11335 prn
= bgp_route_next(prn
)) {
11336 if ((table
= prn
->info
) == NULL
)
11339 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
)) {
11340 if ((bgp_static
= rn
->info
) == NULL
)
11343 char *macrouter
= NULL
;
11346 if (bgp_static
->router_mac
)
11347 macrouter
= prefix_mac2str(
11348 bgp_static
->router_mac
, NULL
, 0);
11349 if (bgp_static
->eth_s_id
)
11350 esi
= esi2str(bgp_static
->eth_s_id
);
11352 prd
= (struct prefix_rd
*)&prn
->p
;
11354 /* "network" configuration display. */
11355 prefix_rd2str(prd
, rdbuf
, sizeof(rdbuf
));
11356 if (p
->u
.prefix_evpn
.route_type
== 5) {
11357 char local_buf
[PREFIX_STRLEN
];
11358 uint8_t family
= is_evpn_prefix_ipaddr_v4((
11359 struct prefix_evpn
*)p
)
11363 &p
->u
.prefix_evpn
.prefix_addr
.ip
.ip
.addr
,
11364 local_buf
, PREFIX_STRLEN
);
11365 sprintf(buf
, "%s/%u", local_buf
,
11366 p
->u
.prefix_evpn
.prefix_addr
.ip_prefix_length
);
11368 prefix2str(p
, buf
, sizeof(buf
));
11371 if (bgp_static
->gatewayIp
.family
== AF_INET
11372 || bgp_static
->gatewayIp
.family
== AF_INET6
)
11373 inet_ntop(bgp_static
->gatewayIp
.family
,
11374 &bgp_static
->gatewayIp
.u
.prefix
, buf2
,
11377 " network %s rd %s ethtag %u label %u esi %s gwip %s routermac %s\n",
11379 p
->u
.prefix_evpn
.prefix_addr
.eth_tag
,
11380 decode_label(&bgp_static
->label
), esi
, buf2
,
11384 XFREE(MTYPE_TMP
, macrouter
);
11386 XFREE(MTYPE_TMP
, esi
);
11391 /* Configuration of static route announcement and aggregate
11393 void bgp_config_write_network(struct vty
*vty
, struct bgp
*bgp
, afi_t afi
,
11396 struct bgp_node
*rn
;
11398 struct bgp_static
*bgp_static
;
11399 struct bgp_aggregate
*bgp_aggregate
;
11400 char buf
[SU_ADDRSTRLEN
];
11402 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_ENCAP
)) {
11403 bgp_config_write_network_vpn(vty
, bgp
, afi
, safi
);
11407 if (afi
== AFI_L2VPN
&& safi
== SAFI_EVPN
) {
11408 bgp_config_write_network_evpn(vty
, bgp
, afi
, safi
);
11412 /* Network configuration. */
11413 for (rn
= bgp_table_top(bgp
->route
[afi
][safi
]); rn
;
11414 rn
= bgp_route_next(rn
)) {
11415 if ((bgp_static
= rn
->info
) == NULL
)
11420 /* "network" configuration display. */
11421 if (bgp_option_check(BGP_OPT_CONFIG_CISCO
) && afi
== AFI_IP
) {
11422 uint32_t destination
;
11423 struct in_addr netmask
;
11425 destination
= ntohl(p
->u
.prefix4
.s_addr
);
11426 masklen2ip(p
->prefixlen
, &netmask
);
11427 vty_out(vty
, " network %s",
11428 inet_ntop(p
->family
, &p
->u
.prefix
, buf
,
11431 if ((IN_CLASSC(destination
) && p
->prefixlen
== 24)
11432 || (IN_CLASSB(destination
) && p
->prefixlen
== 16)
11433 || (IN_CLASSA(destination
) && p
->prefixlen
== 8)
11434 || p
->u
.prefix4
.s_addr
== 0) {
11435 /* Natural mask is not display. */
11437 vty_out(vty
, " mask %s", inet_ntoa(netmask
));
11439 vty_out(vty
, " network %s/%d",
11440 inet_ntop(p
->family
, &p
->u
.prefix
, buf
,
11445 if (bgp_static
->label_index
!= BGP_INVALID_LABEL_INDEX
)
11446 vty_out(vty
, " label-index %u",
11447 bgp_static
->label_index
);
11449 if (bgp_static
->rmap
.name
)
11450 vty_out(vty
, " route-map %s", bgp_static
->rmap
.name
);
11452 if (bgp_static
->backdoor
)
11453 vty_out(vty
, " backdoor");
11455 vty_out(vty
, "\n");
11458 /* Aggregate-address configuration. */
11459 for (rn
= bgp_table_top(bgp
->aggregate
[afi
][safi
]); rn
;
11460 rn
= bgp_route_next(rn
)) {
11461 if ((bgp_aggregate
= rn
->info
) == NULL
)
11466 if (bgp_option_check(BGP_OPT_CONFIG_CISCO
) && afi
== AFI_IP
) {
11467 struct in_addr netmask
;
11469 masklen2ip(p
->prefixlen
, &netmask
);
11470 vty_out(vty
, " aggregate-address %s %s",
11471 inet_ntop(p
->family
, &p
->u
.prefix
, buf
,
11473 inet_ntoa(netmask
));
11475 vty_out(vty
, " aggregate-address %s/%d",
11476 inet_ntop(p
->family
, &p
->u
.prefix
, buf
,
11481 if (bgp_aggregate
->as_set
)
11482 vty_out(vty
, " as-set");
11484 if (bgp_aggregate
->summary_only
)
11485 vty_out(vty
, " summary-only");
11487 vty_out(vty
, "\n");
11491 void bgp_config_write_distance(struct vty
*vty
, struct bgp
*bgp
, afi_t afi
,
11494 struct bgp_node
*rn
;
11495 struct bgp_distance
*bdistance
;
11497 /* Distance configuration. */
11498 if (bgp
->distance_ebgp
[afi
][safi
] && bgp
->distance_ibgp
[afi
][safi
]
11499 && bgp
->distance_local
[afi
][safi
]
11500 && (bgp
->distance_ebgp
[afi
][safi
] != ZEBRA_EBGP_DISTANCE_DEFAULT
11501 || bgp
->distance_ibgp
[afi
][safi
] != ZEBRA_IBGP_DISTANCE_DEFAULT
11502 || bgp
->distance_local
[afi
][safi
]
11503 != ZEBRA_IBGP_DISTANCE_DEFAULT
)) {
11504 vty_out(vty
, " distance bgp %d %d %d\n",
11505 bgp
->distance_ebgp
[afi
][safi
],
11506 bgp
->distance_ibgp
[afi
][safi
],
11507 bgp
->distance_local
[afi
][safi
]);
11510 for (rn
= bgp_table_top(bgp_distance_table
[afi
][safi
]); rn
;
11511 rn
= bgp_route_next(rn
))
11512 if ((bdistance
= rn
->info
) != NULL
) {
11513 char buf
[PREFIX_STRLEN
];
11515 vty_out(vty
, " distance %d %s %s\n",
11516 bdistance
->distance
,
11517 prefix2str(&rn
->p
, buf
, sizeof(buf
)),
11518 bdistance
->access_list
? bdistance
->access_list
11523 /* Allocate routing table structure and install commands. */
11524 void bgp_route_init(void)
11529 /* Init BGP distance table. */
11530 FOREACH_AFI_SAFI (afi
, safi
)
11531 bgp_distance_table
[afi
][safi
] = bgp_table_init(NULL
, afi
, safi
);
11533 /* IPv4 BGP commands. */
11534 install_element(BGP_NODE
, &bgp_table_map_cmd
);
11535 install_element(BGP_NODE
, &bgp_network_cmd
);
11536 install_element(BGP_NODE
, &no_bgp_table_map_cmd
);
11538 install_element(BGP_NODE
, &aggregate_address_cmd
);
11539 install_element(BGP_NODE
, &aggregate_address_mask_cmd
);
11540 install_element(BGP_NODE
, &no_aggregate_address_cmd
);
11541 install_element(BGP_NODE
, &no_aggregate_address_mask_cmd
);
11543 /* IPv4 unicast configuration. */
11544 install_element(BGP_IPV4_NODE
, &bgp_table_map_cmd
);
11545 install_element(BGP_IPV4_NODE
, &bgp_network_cmd
);
11546 install_element(BGP_IPV4_NODE
, &no_bgp_table_map_cmd
);
11548 install_element(BGP_IPV4_NODE
, &aggregate_address_cmd
);
11549 install_element(BGP_IPV4_NODE
, &aggregate_address_mask_cmd
);
11550 install_element(BGP_IPV4_NODE
, &no_aggregate_address_cmd
);
11551 install_element(BGP_IPV4_NODE
, &no_aggregate_address_mask_cmd
);
11553 /* IPv4 multicast configuration. */
11554 install_element(BGP_IPV4M_NODE
, &bgp_table_map_cmd
);
11555 install_element(BGP_IPV4M_NODE
, &bgp_network_cmd
);
11556 install_element(BGP_IPV4M_NODE
, &no_bgp_table_map_cmd
);
11557 install_element(BGP_IPV4M_NODE
, &aggregate_address_cmd
);
11558 install_element(BGP_IPV4M_NODE
, &aggregate_address_mask_cmd
);
11559 install_element(BGP_IPV4M_NODE
, &no_aggregate_address_cmd
);
11560 install_element(BGP_IPV4M_NODE
, &no_aggregate_address_mask_cmd
);
11562 /* IPv4 labeled-unicast configuration. */
11563 install_element(VIEW_NODE
, &show_ip_bgp_instance_all_cmd
);
11564 install_element(VIEW_NODE
, &show_ip_bgp_cmd
);
11565 install_element(VIEW_NODE
, &show_ip_bgp_json_cmd
);
11566 install_element(VIEW_NODE
, &show_ip_bgp_route_cmd
);
11567 install_element(VIEW_NODE
, &show_ip_bgp_regexp_cmd
);
11569 install_element(VIEW_NODE
,
11570 &show_ip_bgp_instance_neighbor_advertised_route_cmd
);
11571 install_element(VIEW_NODE
, &show_ip_bgp_neighbor_routes_cmd
);
11572 install_element(VIEW_NODE
,
11573 &show_ip_bgp_neighbor_received_prefix_filter_cmd
);
11574 #ifdef KEEP_OLD_VPN_COMMANDS
11575 install_element(VIEW_NODE
, &show_ip_bgp_vpn_all_route_prefix_cmd
);
11576 #endif /* KEEP_OLD_VPN_COMMANDS */
11577 install_element(VIEW_NODE
, &show_bgp_afi_vpn_rd_route_cmd
);
11578 install_element(VIEW_NODE
,
11579 &show_ip_bgp_l2vpn_evpn_all_route_prefix_cmd
);
11581 /* BGP dampening clear commands */
11582 install_element(ENABLE_NODE
, &clear_ip_bgp_dampening_cmd
);
11583 install_element(ENABLE_NODE
, &clear_ip_bgp_dampening_prefix_cmd
);
11585 install_element(ENABLE_NODE
, &clear_ip_bgp_dampening_address_cmd
);
11586 install_element(ENABLE_NODE
, &clear_ip_bgp_dampening_address_mask_cmd
);
11589 install_element(ENABLE_NODE
,
11590 &show_ip_bgp_instance_neighbor_prefix_counts_cmd
);
11591 #ifdef KEEP_OLD_VPN_COMMANDS
11592 install_element(ENABLE_NODE
,
11593 &show_ip_bgp_vpn_neighbor_prefix_counts_cmd
);
11594 #endif /* KEEP_OLD_VPN_COMMANDS */
11596 /* New config IPv6 BGP commands. */
11597 install_element(BGP_IPV6_NODE
, &bgp_table_map_cmd
);
11598 install_element(BGP_IPV6_NODE
, &ipv6_bgp_network_cmd
);
11599 install_element(BGP_IPV6_NODE
, &no_bgp_table_map_cmd
);
11601 install_element(BGP_IPV6_NODE
, &ipv6_aggregate_address_cmd
);
11602 install_element(BGP_IPV6_NODE
, &no_ipv6_aggregate_address_cmd
);
11604 install_element(BGP_IPV6M_NODE
, &ipv6_bgp_network_cmd
);
11606 install_element(BGP_NODE
, &bgp_distance_cmd
);
11607 install_element(BGP_NODE
, &no_bgp_distance_cmd
);
11608 install_element(BGP_NODE
, &bgp_distance_source_cmd
);
11609 install_element(BGP_NODE
, &no_bgp_distance_source_cmd
);
11610 install_element(BGP_NODE
, &bgp_distance_source_access_list_cmd
);
11611 install_element(BGP_NODE
, &no_bgp_distance_source_access_list_cmd
);
11612 install_element(BGP_IPV4_NODE
, &bgp_distance_cmd
);
11613 install_element(BGP_IPV4_NODE
, &no_bgp_distance_cmd
);
11614 install_element(BGP_IPV4_NODE
, &bgp_distance_source_cmd
);
11615 install_element(BGP_IPV4_NODE
, &no_bgp_distance_source_cmd
);
11616 install_element(BGP_IPV4_NODE
, &bgp_distance_source_access_list_cmd
);
11617 install_element(BGP_IPV4_NODE
, &no_bgp_distance_source_access_list_cmd
);
11618 install_element(BGP_IPV4M_NODE
, &bgp_distance_cmd
);
11619 install_element(BGP_IPV4M_NODE
, &no_bgp_distance_cmd
);
11620 install_element(BGP_IPV4M_NODE
, &bgp_distance_source_cmd
);
11621 install_element(BGP_IPV4M_NODE
, &no_bgp_distance_source_cmd
);
11622 install_element(BGP_IPV4M_NODE
, &bgp_distance_source_access_list_cmd
);
11623 install_element(BGP_IPV4M_NODE
,
11624 &no_bgp_distance_source_access_list_cmd
);
11625 install_element(BGP_IPV6_NODE
, &bgp_distance_cmd
);
11626 install_element(BGP_IPV6_NODE
, &no_bgp_distance_cmd
);
11627 install_element(BGP_IPV6_NODE
, &ipv6_bgp_distance_source_cmd
);
11628 install_element(BGP_IPV6_NODE
, &no_ipv6_bgp_distance_source_cmd
);
11629 install_element(BGP_IPV6_NODE
,
11630 &ipv6_bgp_distance_source_access_list_cmd
);
11631 install_element(BGP_IPV6_NODE
,
11632 &no_ipv6_bgp_distance_source_access_list_cmd
);
11633 install_element(BGP_IPV6M_NODE
, &bgp_distance_cmd
);
11634 install_element(BGP_IPV6M_NODE
, &no_bgp_distance_cmd
);
11635 install_element(BGP_IPV6M_NODE
, &ipv6_bgp_distance_source_cmd
);
11636 install_element(BGP_IPV6M_NODE
, &no_ipv6_bgp_distance_source_cmd
);
11637 install_element(BGP_IPV6M_NODE
,
11638 &ipv6_bgp_distance_source_access_list_cmd
);
11639 install_element(BGP_IPV6M_NODE
,
11640 &no_ipv6_bgp_distance_source_access_list_cmd
);
11642 install_element(BGP_NODE
, &bgp_damp_set_cmd
);
11643 install_element(BGP_NODE
, &bgp_damp_unset_cmd
);
11644 install_element(BGP_IPV4_NODE
, &bgp_damp_set_cmd
);
11645 install_element(BGP_IPV4_NODE
, &bgp_damp_unset_cmd
);
11647 /* IPv4 Multicast Mode */
11648 install_element(BGP_IPV4M_NODE
, &bgp_damp_set_cmd
);
11649 install_element(BGP_IPV4M_NODE
, &bgp_damp_unset_cmd
);
11651 /* Large Communities */
11652 install_element(VIEW_NODE
, &show_ip_bgp_large_community_list_cmd
);
11653 install_element(VIEW_NODE
, &show_ip_bgp_large_community_cmd
);
11655 /* show bgp ipv4 flowspec detailed */
11656 install_element(VIEW_NODE
, &show_ip_bgp_flowspec_routes_detailed_cmd
);
11660 void bgp_route_finish(void)
11665 FOREACH_AFI_SAFI (afi
, safi
) {
11666 bgp_table_unlock(bgp_distance_table
[afi
][safi
]);
11667 bgp_distance_table
[afi
][safi
] = NULL
;