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(LIB_ERR_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
;
4043 struct bgp_info
*ri
;
4045 /* look for neighbor in tables */
4046 if ((table
= rn
->info
) == NULL
)
4049 for (rm
= bgp_table_top(table
); rm
;
4050 rm
= bgp_route_next(rm
))
4051 for (ri
= rm
->info
; ri
; ri
= ri
->next
) {
4052 if (ri
->peer
!= peer
)
4054 if (!CHECK_FLAG(ri
->flags
,
4058 bgp_rib_remove(rm
, ri
, peer
, afi
, safi
);
4063 for (rn
= bgp_table_top(peer
->bgp
->rib
[afi
][safi
]); rn
;
4064 rn
= bgp_route_next(rn
))
4065 for (ri
= rn
->info
; ri
; ri
= ri
->next
) {
4066 if (ri
->peer
!= peer
)
4068 if (!CHECK_FLAG(ri
->flags
, BGP_INFO_STALE
))
4070 bgp_rib_remove(rn
, ri
, peer
, afi
, safi
);
4076 static void bgp_cleanup_table(struct bgp
*bgp
, struct bgp_table
*table
,
4079 struct bgp_node
*rn
;
4080 struct bgp_info
*ri
;
4081 struct bgp_info
*next
;
4083 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
))
4084 for (ri
= rn
->info
; ri
; ri
= next
) {
4086 if (CHECK_FLAG(ri
->flags
, BGP_INFO_SELECTED
)
4087 && ri
->type
== ZEBRA_ROUTE_BGP
4088 && (ri
->sub_type
== BGP_ROUTE_NORMAL
4089 || ri
->sub_type
== BGP_ROUTE_AGGREGATE
4090 || ri
->sub_type
== BGP_ROUTE_IMPORTED
)) {
4092 if (bgp_fibupd_safi(safi
))
4093 bgp_zebra_withdraw(&rn
->p
, ri
,
4095 bgp_info_reap(rn
, ri
);
4100 /* Delete all kernel routes. */
4101 void bgp_cleanup_routes(struct bgp
*bgp
)
4104 struct bgp_node
*rn
;
4106 for (afi
= AFI_IP
; afi
< AFI_MAX
; ++afi
) {
4107 if (afi
== AFI_L2VPN
)
4109 bgp_cleanup_table(bgp
, bgp
->rib
[afi
][SAFI_UNICAST
],
4112 * VPN and ENCAP and EVPN tables are two-level (RD is top level)
4114 if (afi
!= AFI_L2VPN
) {
4116 safi
= SAFI_MPLS_VPN
;
4117 for (rn
= bgp_table_top(bgp
->rib
[afi
][safi
]); rn
;
4118 rn
= bgp_route_next(rn
)) {
4120 bgp_cleanup_table(bgp
,
4121 (struct bgp_table
*)(rn
->info
),
4123 bgp_table_finish((struct bgp_table
**)&(
4126 bgp_unlock_node(rn
);
4130 for (rn
= bgp_table_top(bgp
->rib
[afi
][safi
]); rn
;
4131 rn
= bgp_route_next(rn
)) {
4133 bgp_cleanup_table(bgp
,
4134 (struct bgp_table
*)(rn
->info
),
4136 bgp_table_finish((struct bgp_table
**)&(
4139 bgp_unlock_node(rn
);
4144 for (rn
= bgp_table_top(bgp
->rib
[AFI_L2VPN
][SAFI_EVPN
]); rn
;
4145 rn
= bgp_route_next(rn
)) {
4147 bgp_cleanup_table(bgp
,
4148 (struct bgp_table
*)(rn
->info
),
4150 bgp_table_finish((struct bgp_table
**)&(rn
->info
));
4152 bgp_unlock_node(rn
);
4157 void bgp_reset(void)
4160 bgp_zclient_reset();
4161 access_list_reset();
4162 prefix_list_reset();
4165 static int bgp_addpath_encode_rx(struct peer
*peer
, afi_t afi
, safi_t safi
)
4167 return (CHECK_FLAG(peer
->af_cap
[afi
][safi
], PEER_CAP_ADDPATH_AF_RX_ADV
)
4168 && CHECK_FLAG(peer
->af_cap
[afi
][safi
],
4169 PEER_CAP_ADDPATH_AF_TX_RCV
));
4172 /* Parse NLRI stream. Withdraw NLRI is recognized by NULL attr
4174 int bgp_nlri_parse_ip(struct peer
*peer
, struct attr
*attr
,
4175 struct bgp_nlri
*packet
)
4184 int addpath_encoded
;
4185 uint32_t addpath_id
;
4188 lim
= pnt
+ packet
->length
;
4190 safi
= packet
->safi
;
4192 addpath_encoded
= bgp_addpath_encode_rx(peer
, afi
, safi
);
4194 /* RFC4771 6.3 The NLRI field in the UPDATE message is checked for
4195 syntactic validity. If the field is syntactically incorrect,
4196 then the Error Subcode is set to Invalid Network Field. */
4197 for (; pnt
< lim
; pnt
+= psize
) {
4198 /* Clear prefix structure. */
4199 memset(&p
, 0, sizeof(struct prefix
));
4201 if (addpath_encoded
) {
4203 /* When packet overflow occurs return immediately. */
4204 if (pnt
+ BGP_ADDPATH_ID_LEN
> lim
)
4207 addpath_id
= ntohl(*((uint32_t *)pnt
));
4208 pnt
+= BGP_ADDPATH_ID_LEN
;
4211 /* Fetch prefix length. */
4212 p
.prefixlen
= *pnt
++;
4213 /* afi/safi validity already verified by caller,
4214 * bgp_update_receive */
4215 p
.family
= afi2family(afi
);
4217 /* Prefix length check. */
4218 if (p
.prefixlen
> prefix_blen(&p
) * 8) {
4221 "%s [Error] Update packet error (wrong prefix length %d for afi %u)",
4222 peer
->host
, p
.prefixlen
, packet
->afi
);
4226 /* Packet size overflow check. */
4227 psize
= PSIZE(p
.prefixlen
);
4229 /* When packet overflow occur return immediately. */
4230 if (pnt
+ psize
> lim
) {
4233 "%s [Error] Update packet error (prefix length %d overflows packet)",
4234 peer
->host
, p
.prefixlen
);
4238 /* Defensive coding, double-check the psize fits in a struct
4240 if (psize
> (ssize_t
)sizeof(p
.u
)) {
4243 "%s [Error] Update packet error (prefix length %d too large for prefix storage %zu)",
4244 peer
->host
, p
.prefixlen
, sizeof(p
.u
));
4248 /* Fetch prefix from NLRI packet. */
4249 memcpy(p
.u
.val
, pnt
, psize
);
4251 /* Check address. */
4252 if (afi
== AFI_IP
&& safi
== SAFI_UNICAST
) {
4253 if (IN_CLASSD(ntohl(p
.u
.prefix4
.s_addr
))) {
4254 /* From RFC4271 Section 6.3:
4256 * If a prefix in the NLRI field is semantically
4258 * (e.g., an unexpected multicast IP address),
4260 * be logged locally, and the prefix SHOULD be
4265 "%s: IPv4 unicast NLRI is multicast address %s, ignoring",
4266 peer
->host
, inet_ntoa(p
.u
.prefix4
));
4271 /* Check address. */
4272 if (afi
== AFI_IP6
&& safi
== SAFI_UNICAST
) {
4273 if (IN6_IS_ADDR_LINKLOCAL(&p
.u
.prefix6
)) {
4278 "%s: IPv6 unicast NLRI is link-local address %s, ignoring",
4280 inet_ntop(AF_INET6
, &p
.u
.prefix6
, buf
,
4285 if (IN6_IS_ADDR_MULTICAST(&p
.u
.prefix6
)) {
4290 "%s: IPv6 unicast NLRI is multicast address %s, ignoring",
4292 inet_ntop(AF_INET6
, &p
.u
.prefix6
, buf
,
4299 /* Normal process. */
4301 ret
= bgp_update(peer
, &p
, addpath_id
, attr
, afi
, safi
,
4302 ZEBRA_ROUTE_BGP
, BGP_ROUTE_NORMAL
,
4303 NULL
, NULL
, 0, 0, NULL
);
4305 ret
= bgp_withdraw(peer
, &p
, addpath_id
, attr
, afi
,
4306 safi
, ZEBRA_ROUTE_BGP
,
4307 BGP_ROUTE_NORMAL
, NULL
, NULL
, 0,
4310 /* Address family configuration mismatch or maximum-prefix count
4316 /* Packet length consistency check. */
4320 "%s [Error] Update packet error (prefix length mismatch with total length)",
4328 static struct bgp_static
*bgp_static_new(void)
4330 return XCALLOC(MTYPE_BGP_STATIC
, sizeof(struct bgp_static
));
4333 static void bgp_static_free(struct bgp_static
*bgp_static
)
4335 if (bgp_static
->rmap
.name
)
4336 XFREE(MTYPE_ROUTE_MAP_NAME
, bgp_static
->rmap
.name
);
4337 if (bgp_static
->eth_s_id
)
4338 XFREE(MTYPE_ATTR
, bgp_static
->eth_s_id
);
4339 XFREE(MTYPE_BGP_STATIC
, bgp_static
);
4342 void bgp_static_update(struct bgp
*bgp
, struct prefix
*p
,
4343 struct bgp_static
*bgp_static
, afi_t afi
, safi_t safi
)
4345 struct bgp_node
*rn
;
4346 struct bgp_info
*ri
;
4347 struct bgp_info
*new;
4348 struct bgp_info info
;
4350 struct attr
*attr_new
;
4353 int vnc_implicit_withdraw
= 0;
4360 rn
= bgp_afi_node_get(bgp
->rib
[afi
][safi
], afi
, safi
, p
, NULL
);
4362 bgp_attr_default_set(&attr
, BGP_ORIGIN_IGP
);
4364 attr
.nexthop
= bgp_static
->igpnexthop
;
4365 attr
.med
= bgp_static
->igpmetric
;
4366 attr
.flag
|= ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
);
4368 if (bgp_static
->atomic
)
4369 attr
.flag
|= ATTR_FLAG_BIT(BGP_ATTR_ATOMIC_AGGREGATE
);
4371 /* Store label index, if required. */
4372 if (bgp_static
->label_index
!= BGP_INVALID_LABEL_INDEX
) {
4373 attr
.label_index
= bgp_static
->label_index
;
4374 attr
.flag
|= ATTR_FLAG_BIT(BGP_ATTR_PREFIX_SID
);
4377 /* Apply route-map. */
4378 if (bgp_static
->rmap
.name
) {
4379 struct attr attr_tmp
= attr
;
4381 memset(&info
, 0, sizeof(struct bgp_info
));
4382 info
.peer
= bgp
->peer_self
;
4383 info
.attr
= &attr_tmp
;
4385 SET_FLAG(bgp
->peer_self
->rmap_type
, PEER_RMAP_TYPE_NETWORK
);
4387 ret
= route_map_apply(bgp_static
->rmap
.map
, p
, RMAP_BGP
, &info
);
4389 bgp
->peer_self
->rmap_type
= 0;
4391 if (ret
== RMAP_DENYMATCH
) {
4392 /* Free uninterned attribute. */
4393 bgp_attr_flush(&attr_tmp
);
4395 /* Unintern original. */
4396 aspath_unintern(&attr
.aspath
);
4397 bgp_static_withdraw(bgp
, p
, afi
, safi
);
4401 if (bgp_flag_check(bgp
, BGP_FLAG_GRACEFUL_SHUTDOWN
))
4402 bgp_attr_add_gshut_community(&attr_tmp
);
4404 attr_new
= bgp_attr_intern(&attr_tmp
);
4407 if (bgp_flag_check(bgp
, BGP_FLAG_GRACEFUL_SHUTDOWN
))
4408 bgp_attr_add_gshut_community(&attr
);
4410 attr_new
= bgp_attr_intern(&attr
);
4413 for (ri
= rn
->info
; ri
; ri
= ri
->next
)
4414 if (ri
->peer
== bgp
->peer_self
&& ri
->type
== ZEBRA_ROUTE_BGP
4415 && ri
->sub_type
== BGP_ROUTE_STATIC
)
4419 if (attrhash_cmp(ri
->attr
, attr_new
)
4420 && !CHECK_FLAG(ri
->flags
, BGP_INFO_REMOVED
)
4421 && !bgp_flag_check(bgp
, BGP_FLAG_FORCE_STATIC_PROCESS
)) {
4422 bgp_unlock_node(rn
);
4423 bgp_attr_unintern(&attr_new
);
4424 aspath_unintern(&attr
.aspath
);
4427 /* The attribute is changed. */
4428 bgp_info_set_flag(rn
, ri
, BGP_INFO_ATTR_CHANGED
);
4430 /* Rewrite BGP route information. */
4431 if (CHECK_FLAG(ri
->flags
, BGP_INFO_REMOVED
))
4432 bgp_info_restore(rn
, ri
);
4434 bgp_aggregate_decrement(bgp
, p
, ri
, afi
, safi
);
4436 if ((afi
== AFI_IP
|| afi
== AFI_IP6
)
4437 && (safi
== SAFI_UNICAST
)) {
4438 if (CHECK_FLAG(ri
->flags
, BGP_INFO_SELECTED
)) {
4440 * Implicit withdraw case.
4441 * We have to do this before ri is
4444 ++vnc_implicit_withdraw
;
4445 vnc_import_bgp_del_route(bgp
, p
, ri
);
4446 vnc_import_bgp_exterior_del_route(
4451 bgp_attr_unintern(&ri
->attr
);
4452 ri
->attr
= attr_new
;
4453 ri
->uptime
= bgp_clock();
4455 if ((afi
== AFI_IP
|| afi
== AFI_IP6
)
4456 && (safi
== SAFI_UNICAST
)) {
4457 if (vnc_implicit_withdraw
) {
4458 vnc_import_bgp_add_route(bgp
, p
, ri
);
4459 vnc_import_bgp_exterior_add_route(
4465 /* Nexthop reachability check. */
4466 if (bgp_flag_check(bgp
, BGP_FLAG_IMPORT_CHECK
)
4467 && (safi
== SAFI_UNICAST
4468 || safi
== SAFI_LABELED_UNICAST
)) {
4470 struct bgp
*bgp_nexthop
= bgp
;
4472 if (ri
->extra
&& ri
->extra
->bgp_orig
)
4473 bgp_nexthop
= ri
->extra
->bgp_orig
;
4475 if (bgp_find_or_add_nexthop(bgp
, bgp_nexthop
,
4477 bgp_info_set_flag(rn
, ri
,
4480 if (BGP_DEBUG(nht
, NHT
)) {
4481 char buf1
[INET6_ADDRSTRLEN
];
4482 inet_ntop(p
->family
,
4486 "%s(%s): Route not in table, not advertising",
4487 __FUNCTION__
, buf1
);
4489 bgp_info_unset_flag(rn
, ri
,
4493 /* Delete the NHT structure if any, if we're
4495 * enabling/disabling import check. We
4496 * deregister the route
4497 * from NHT to avoid overloading NHT and the
4498 * process interaction
4500 bgp_unlink_nexthop(ri
);
4501 bgp_info_set_flag(rn
, ri
, BGP_INFO_VALID
);
4503 /* Process change. */
4504 bgp_aggregate_increment(bgp
, p
, ri
, afi
, safi
);
4505 bgp_process(bgp
, rn
, afi
, safi
);
4507 if (SAFI_UNICAST
== safi
4508 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
4510 == BGP_INSTANCE_TYPE_DEFAULT
)) {
4511 vpn_leak_from_vrf_update(bgp_get_default(), bgp
,
4515 bgp_unlock_node(rn
);
4516 aspath_unintern(&attr
.aspath
);
4521 /* Make new BGP info. */
4522 new = info_make(ZEBRA_ROUTE_BGP
, BGP_ROUTE_STATIC
, 0, bgp
->peer_self
,
4524 /* Nexthop reachability check. */
4525 if (bgp_flag_check(bgp
, BGP_FLAG_IMPORT_CHECK
)
4526 && (safi
== SAFI_UNICAST
|| safi
== SAFI_LABELED_UNICAST
)) {
4527 if (bgp_find_or_add_nexthop(bgp
, bgp
, afi
, new, NULL
, 0))
4528 bgp_info_set_flag(rn
, new, BGP_INFO_VALID
);
4530 if (BGP_DEBUG(nht
, NHT
)) {
4531 char buf1
[INET6_ADDRSTRLEN
];
4532 inet_ntop(p
->family
, &p
->u
.prefix
, buf1
,
4535 "%s(%s): Route not in table, not advertising",
4536 __FUNCTION__
, buf1
);
4538 bgp_info_unset_flag(rn
, new, BGP_INFO_VALID
);
4541 /* Delete the NHT structure if any, if we're toggling between
4542 * enabling/disabling import check. We deregister the route
4543 * from NHT to avoid overloading NHT and the process interaction
4545 bgp_unlink_nexthop(new);
4547 bgp_info_set_flag(rn
, new, BGP_INFO_VALID
);
4550 /* Aggregate address increment. */
4551 bgp_aggregate_increment(bgp
, p
, new, afi
, safi
);
4553 /* Register new BGP information. */
4554 bgp_info_add(rn
, new);
4556 /* route_node_get lock */
4557 bgp_unlock_node(rn
);
4559 /* Process change. */
4560 bgp_process(bgp
, rn
, afi
, safi
);
4562 if (SAFI_UNICAST
== safi
4563 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
4564 || bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
4565 vpn_leak_from_vrf_update(bgp_get_default(), bgp
, new);
4568 /* Unintern original. */
4569 aspath_unintern(&attr
.aspath
);
4572 void bgp_static_withdraw(struct bgp
*bgp
, struct prefix
*p
, afi_t afi
,
4575 struct bgp_node
*rn
;
4576 struct bgp_info
*ri
;
4578 rn
= bgp_afi_node_get(bgp
->rib
[afi
][safi
], afi
, safi
, p
, NULL
);
4580 /* Check selected route and self inserted route. */
4581 for (ri
= rn
->info
; ri
; ri
= ri
->next
)
4582 if (ri
->peer
== bgp
->peer_self
&& ri
->type
== ZEBRA_ROUTE_BGP
4583 && ri
->sub_type
== BGP_ROUTE_STATIC
)
4586 /* Withdraw static BGP route from routing table. */
4588 if (SAFI_UNICAST
== safi
4589 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
4590 || bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
4591 vpn_leak_from_vrf_withdraw(bgp_get_default(), bgp
, ri
);
4593 bgp_aggregate_decrement(bgp
, p
, ri
, afi
, safi
);
4594 bgp_unlink_nexthop(ri
);
4595 bgp_info_delete(rn
, ri
);
4596 bgp_process(bgp
, rn
, afi
, safi
);
4599 /* Unlock bgp_node_lookup. */
4600 bgp_unlock_node(rn
);
4604 * Used for SAFI_MPLS_VPN and SAFI_ENCAP
4606 static void bgp_static_withdraw_safi(struct bgp
*bgp
, struct prefix
*p
,
4607 afi_t afi
, safi_t safi
,
4608 struct prefix_rd
*prd
)
4610 struct bgp_node
*rn
;
4611 struct bgp_info
*ri
;
4613 rn
= bgp_afi_node_get(bgp
->rib
[afi
][safi
], afi
, safi
, p
, prd
);
4615 /* Check selected route and self inserted route. */
4616 for (ri
= rn
->info
; ri
; ri
= ri
->next
)
4617 if (ri
->peer
== bgp
->peer_self
&& ri
->type
== ZEBRA_ROUTE_BGP
4618 && ri
->sub_type
== BGP_ROUTE_STATIC
)
4621 /* Withdraw static BGP route from routing table. */
4624 rfapiProcessWithdraw(
4625 ri
->peer
, NULL
, p
, prd
, ri
->attr
, afi
, safi
, ri
->type
,
4626 1); /* Kill, since it is an administrative change */
4628 if (SAFI_MPLS_VPN
== safi
4629 && bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
) {
4630 vpn_leak_to_vrf_withdraw(bgp
, ri
);
4632 bgp_aggregate_decrement(bgp
, p
, ri
, afi
, safi
);
4633 bgp_info_delete(rn
, ri
);
4634 bgp_process(bgp
, rn
, afi
, safi
);
4637 /* Unlock bgp_node_lookup. */
4638 bgp_unlock_node(rn
);
4641 static void bgp_static_update_safi(struct bgp
*bgp
, struct prefix
*p
,
4642 struct bgp_static
*bgp_static
, afi_t afi
,
4645 struct bgp_node
*rn
;
4646 struct bgp_info
*new;
4647 struct attr
*attr_new
;
4648 struct attr attr
= {0};
4649 struct bgp_info
*ri
;
4651 mpls_label_t label
= 0;
4653 uint32_t num_labels
= 0;
4658 if (bgp_static
->label
!= MPLS_INVALID_LABEL
)
4660 rn
= bgp_afi_node_get(bgp
->rib
[afi
][safi
], afi
, safi
, p
,
4663 bgp_attr_default_set(&attr
, BGP_ORIGIN_IGP
);
4665 attr
.nexthop
= bgp_static
->igpnexthop
;
4666 attr
.med
= bgp_static
->igpmetric
;
4667 attr
.flag
|= ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
);
4669 if ((safi
== SAFI_EVPN
) || (safi
== SAFI_MPLS_VPN
)
4670 || (safi
== SAFI_ENCAP
)) {
4671 if (afi
== AFI_IP
) {
4672 attr
.mp_nexthop_global_in
= bgp_static
->igpnexthop
;
4673 attr
.mp_nexthop_len
= IPV4_MAX_BYTELEN
;
4676 if (afi
== AFI_L2VPN
) {
4677 if (bgp_static
->gatewayIp
.family
== AF_INET
)
4679 bgp_static
->gatewayIp
.u
.prefix4
.s_addr
;
4680 else if (bgp_static
->gatewayIp
.family
== AF_INET6
)
4681 memcpy(&(add
.ipv6
), &(bgp_static
->gatewayIp
.u
.prefix6
),
4682 sizeof(struct in6_addr
));
4683 overlay_index_update(&attr
, bgp_static
->eth_s_id
, &add
);
4684 if (bgp_static
->encap_tunneltype
== BGP_ENCAP_TYPE_VXLAN
) {
4685 struct bgp_encap_type_vxlan bet
;
4686 memset(&bet
, 0, sizeof(struct bgp_encap_type_vxlan
));
4687 bet
.vnid
= p
->u
.prefix_evpn
.prefix_addr
.eth_tag
;
4688 bgp_encap_type_vxlan_to_tlv(&bet
, &attr
);
4690 if (bgp_static
->router_mac
) {
4691 bgp_add_routermac_ecom(&attr
, bgp_static
->router_mac
);
4694 /* Apply route-map. */
4695 if (bgp_static
->rmap
.name
) {
4696 struct attr attr_tmp
= attr
;
4697 struct bgp_info info
;
4700 info
.peer
= bgp
->peer_self
;
4701 info
.attr
= &attr_tmp
;
4703 SET_FLAG(bgp
->peer_self
->rmap_type
, PEER_RMAP_TYPE_NETWORK
);
4705 ret
= route_map_apply(bgp_static
->rmap
.map
, p
, RMAP_BGP
, &info
);
4707 bgp
->peer_self
->rmap_type
= 0;
4709 if (ret
== RMAP_DENYMATCH
) {
4710 /* Free uninterned attribute. */
4711 bgp_attr_flush(&attr_tmp
);
4713 /* Unintern original. */
4714 aspath_unintern(&attr
.aspath
);
4715 bgp_static_withdraw_safi(bgp
, p
, afi
, safi
,
4720 attr_new
= bgp_attr_intern(&attr_tmp
);
4722 attr_new
= bgp_attr_intern(&attr
);
4725 for (ri
= rn
->info
; ri
; ri
= ri
->next
)
4726 if (ri
->peer
== bgp
->peer_self
&& ri
->type
== ZEBRA_ROUTE_BGP
4727 && ri
->sub_type
== BGP_ROUTE_STATIC
)
4732 memset(&add
, 0, sizeof(union gw_addr
));
4733 if (attrhash_cmp(ri
->attr
, attr_new
)
4734 && overlay_index_equal(afi
, ri
, bgp_static
->eth_s_id
, &add
)
4735 && !CHECK_FLAG(ri
->flags
, BGP_INFO_REMOVED
)) {
4736 bgp_unlock_node(rn
);
4737 bgp_attr_unintern(&attr_new
);
4738 aspath_unintern(&attr
.aspath
);
4741 /* The attribute is changed. */
4742 bgp_info_set_flag(rn
, ri
, BGP_INFO_ATTR_CHANGED
);
4744 /* Rewrite BGP route information. */
4745 if (CHECK_FLAG(ri
->flags
, BGP_INFO_REMOVED
))
4746 bgp_info_restore(rn
, ri
);
4748 bgp_aggregate_decrement(bgp
, p
, ri
, afi
, safi
);
4749 bgp_attr_unintern(&ri
->attr
);
4750 ri
->attr
= attr_new
;
4751 ri
->uptime
= bgp_clock();
4754 label
= decode_label(&ri
->extra
->label
[0]);
4757 /* Process change. */
4758 bgp_aggregate_increment(bgp
, p
, ri
, afi
, safi
);
4759 bgp_process(bgp
, rn
, afi
, safi
);
4761 if (SAFI_MPLS_VPN
== safi
4762 && bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
) {
4763 vpn_leak_to_vrf_update(bgp
, ri
);
4766 rfapiProcessUpdate(ri
->peer
, NULL
, p
, &bgp_static
->prd
,
4767 ri
->attr
, afi
, safi
, ri
->type
,
4768 ri
->sub_type
, &label
);
4770 bgp_unlock_node(rn
);
4771 aspath_unintern(&attr
.aspath
);
4777 /* Make new BGP info. */
4778 new = info_make(ZEBRA_ROUTE_BGP
, BGP_ROUTE_STATIC
, 0, bgp
->peer_self
,
4780 SET_FLAG(new->flags
, BGP_INFO_VALID
);
4781 new->extra
= bgp_info_extra_new();
4783 new->extra
->label
[0] = bgp_static
->label
;
4784 new->extra
->num_labels
= num_labels
;
4787 label
= decode_label(&bgp_static
->label
);
4790 /* Aggregate address increment. */
4791 bgp_aggregate_increment(bgp
, p
, new, afi
, safi
);
4793 /* Register new BGP information. */
4794 bgp_info_add(rn
, new);
4795 /* route_node_get lock */
4796 bgp_unlock_node(rn
);
4798 /* Process change. */
4799 bgp_process(bgp
, rn
, afi
, safi
);
4801 if (SAFI_MPLS_VPN
== safi
4802 && bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
) {
4803 vpn_leak_to_vrf_update(bgp
, new);
4806 rfapiProcessUpdate(new->peer
, NULL
, p
, &bgp_static
->prd
, new->attr
, afi
,
4807 safi
, new->type
, new->sub_type
, &label
);
4810 /* Unintern original. */
4811 aspath_unintern(&attr
.aspath
);
4814 /* Configure static BGP network. When user don't run zebra, static
4815 route should be installed as valid. */
4816 static int bgp_static_set(struct vty
*vty
, const char *negate
,
4817 const char *ip_str
, afi_t afi
, safi_t safi
,
4818 const char *rmap
, int backdoor
, uint32_t label_index
)
4820 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
4823 struct bgp_static
*bgp_static
;
4824 struct bgp_node
*rn
;
4825 uint8_t need_update
= 0;
4827 /* Convert IP prefix string to struct prefix. */
4828 ret
= str2prefix(ip_str
, &p
);
4830 vty_out(vty
, "%% Malformed prefix\n");
4831 return CMD_WARNING_CONFIG_FAILED
;
4833 if (afi
== AFI_IP6
&& IN6_IS_ADDR_LINKLOCAL(&p
.u
.prefix6
)) {
4834 vty_out(vty
, "%% Malformed prefix (link-local address)\n");
4835 return CMD_WARNING_CONFIG_FAILED
;
4842 /* Set BGP static route configuration. */
4843 rn
= bgp_node_lookup(bgp
->route
[afi
][safi
], &p
);
4846 vty_out(vty
, "%% Can't find static route specified\n");
4847 return CMD_WARNING_CONFIG_FAILED
;
4850 bgp_static
= rn
->info
;
4852 if ((label_index
!= BGP_INVALID_LABEL_INDEX
)
4853 && (label_index
!= bgp_static
->label_index
)) {
4855 "%% label-index doesn't match static route\n");
4856 return CMD_WARNING_CONFIG_FAILED
;
4859 if ((rmap
&& bgp_static
->rmap
.name
)
4860 && strcmp(rmap
, bgp_static
->rmap
.name
)) {
4862 "%% route-map name doesn't match static route\n");
4863 return CMD_WARNING_CONFIG_FAILED
;
4866 /* Update BGP RIB. */
4867 if (!bgp_static
->backdoor
)
4868 bgp_static_withdraw(bgp
, &p
, afi
, safi
);
4870 /* Clear configuration. */
4871 bgp_static_free(bgp_static
);
4873 bgp_unlock_node(rn
);
4874 bgp_unlock_node(rn
);
4877 /* Set BGP static route configuration. */
4878 rn
= bgp_node_get(bgp
->route
[afi
][safi
], &p
);
4881 /* Configuration change. */
4882 bgp_static
= rn
->info
;
4884 /* Label index cannot be changed. */
4885 if (bgp_static
->label_index
!= label_index
) {
4886 vty_out(vty
, "%% cannot change label-index\n");
4887 return CMD_WARNING_CONFIG_FAILED
;
4890 /* Check previous routes are installed into BGP. */
4891 if (bgp_static
->valid
4892 && bgp_static
->backdoor
!= backdoor
)
4895 bgp_static
->backdoor
= backdoor
;
4898 if (bgp_static
->rmap
.name
)
4899 XFREE(MTYPE_ROUTE_MAP_NAME
,
4900 bgp_static
->rmap
.name
);
4901 bgp_static
->rmap
.name
=
4902 XSTRDUP(MTYPE_ROUTE_MAP_NAME
, rmap
);
4903 bgp_static
->rmap
.map
=
4904 route_map_lookup_by_name(rmap
);
4906 if (bgp_static
->rmap
.name
)
4907 XFREE(MTYPE_ROUTE_MAP_NAME
,
4908 bgp_static
->rmap
.name
);
4909 bgp_static
->rmap
.name
= NULL
;
4910 bgp_static
->rmap
.map
= NULL
;
4911 bgp_static
->valid
= 0;
4913 bgp_unlock_node(rn
);
4915 /* New configuration. */
4916 bgp_static
= bgp_static_new();
4917 bgp_static
->backdoor
= backdoor
;
4918 bgp_static
->valid
= 0;
4919 bgp_static
->igpmetric
= 0;
4920 bgp_static
->igpnexthop
.s_addr
= 0;
4921 bgp_static
->label_index
= label_index
;
4924 if (bgp_static
->rmap
.name
)
4925 XFREE(MTYPE_ROUTE_MAP_NAME
,
4926 bgp_static
->rmap
.name
);
4927 bgp_static
->rmap
.name
=
4928 XSTRDUP(MTYPE_ROUTE_MAP_NAME
, rmap
);
4929 bgp_static
->rmap
.map
=
4930 route_map_lookup_by_name(rmap
);
4932 rn
->info
= bgp_static
;
4935 bgp_static
->valid
= 1;
4937 bgp_static_withdraw(bgp
, &p
, afi
, safi
);
4939 if (!bgp_static
->backdoor
)
4940 bgp_static_update(bgp
, &p
, bgp_static
, afi
, safi
);
4946 void bgp_static_add(struct bgp
*bgp
)
4950 struct bgp_node
*rn
;
4951 struct bgp_node
*rm
;
4952 struct bgp_table
*table
;
4953 struct bgp_static
*bgp_static
;
4955 FOREACH_AFI_SAFI (afi
, safi
)
4956 for (rn
= bgp_table_top(bgp
->route
[afi
][safi
]); rn
;
4957 rn
= bgp_route_next(rn
)) {
4958 if (rn
->info
== NULL
)
4961 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_ENCAP
)
4962 || (safi
== SAFI_EVPN
)) {
4965 for (rm
= bgp_table_top(table
); rm
;
4966 rm
= bgp_route_next(rm
)) {
4967 bgp_static
= rm
->info
;
4968 bgp_static_update_safi(bgp
, &rm
->p
,
4973 bgp_static_update(bgp
, &rn
->p
, rn
->info
, afi
,
4979 /* Called from bgp_delete(). Delete all static routes from the BGP
4981 void bgp_static_delete(struct bgp
*bgp
)
4985 struct bgp_node
*rn
;
4986 struct bgp_node
*rm
;
4987 struct bgp_table
*table
;
4988 struct bgp_static
*bgp_static
;
4990 FOREACH_AFI_SAFI (afi
, safi
)
4991 for (rn
= bgp_table_top(bgp
->route
[afi
][safi
]); rn
;
4992 rn
= bgp_route_next(rn
)) {
4993 if (rn
->info
== NULL
)
4996 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_ENCAP
)
4997 || (safi
== SAFI_EVPN
)) {
5000 for (rm
= bgp_table_top(table
); rm
;
5001 rm
= bgp_route_next(rm
)) {
5002 bgp_static
= rm
->info
;
5003 bgp_static_withdraw_safi(
5004 bgp
, &rm
->p
, AFI_IP
, safi
,
5005 (struct prefix_rd
*)&rn
->p
);
5006 bgp_static_free(bgp_static
);
5008 bgp_unlock_node(rn
);
5011 bgp_static
= rn
->info
;
5012 bgp_static_withdraw(bgp
, &rn
->p
, afi
, safi
);
5013 bgp_static_free(bgp_static
);
5015 bgp_unlock_node(rn
);
5020 void bgp_static_redo_import_check(struct bgp
*bgp
)
5024 struct bgp_node
*rn
;
5025 struct bgp_node
*rm
;
5026 struct bgp_table
*table
;
5027 struct bgp_static
*bgp_static
;
5029 /* Use this flag to force reprocessing of the route */
5030 bgp_flag_set(bgp
, BGP_FLAG_FORCE_STATIC_PROCESS
);
5031 FOREACH_AFI_SAFI (afi
, safi
) {
5032 for (rn
= bgp_table_top(bgp
->route
[afi
][safi
]); rn
;
5033 rn
= bgp_route_next(rn
)) {
5034 if (rn
->info
== NULL
)
5037 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_ENCAP
)
5038 || (safi
== SAFI_EVPN
)) {
5041 for (rm
= bgp_table_top(table
); rm
;
5042 rm
= bgp_route_next(rm
)) {
5043 bgp_static
= rm
->info
;
5044 bgp_static_update_safi(bgp
, &rm
->p
,
5049 bgp_static
= rn
->info
;
5050 bgp_static_update(bgp
, &rn
->p
, bgp_static
, afi
,
5055 bgp_flag_unset(bgp
, BGP_FLAG_FORCE_STATIC_PROCESS
);
5058 static void bgp_purge_af_static_redist_routes(struct bgp
*bgp
, afi_t afi
,
5061 struct bgp_table
*table
;
5062 struct bgp_node
*rn
;
5063 struct bgp_info
*ri
;
5065 table
= bgp
->rib
[afi
][safi
];
5066 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
)) {
5067 for (ri
= rn
->info
; ri
; ri
= ri
->next
) {
5068 if (ri
->peer
== bgp
->peer_self
5069 && ((ri
->type
== ZEBRA_ROUTE_BGP
5070 && ri
->sub_type
== BGP_ROUTE_STATIC
)
5071 || (ri
->type
!= ZEBRA_ROUTE_BGP
5073 == BGP_ROUTE_REDISTRIBUTE
))) {
5074 bgp_aggregate_decrement(bgp
, &rn
->p
, ri
, afi
,
5076 bgp_unlink_nexthop(ri
);
5077 bgp_info_delete(rn
, ri
);
5078 bgp_process(bgp
, rn
, afi
, safi
);
5085 * Purge all networks and redistributed routes from routing table.
5086 * Invoked upon the instance going down.
5088 void bgp_purge_static_redist_routes(struct bgp
*bgp
)
5093 FOREACH_AFI_SAFI (afi
, safi
)
5094 bgp_purge_af_static_redist_routes(bgp
, afi
, safi
);
5099 * Currently this is used to set static routes for VPN and ENCAP.
5100 * I think it can probably be factored with bgp_static_set.
5102 int bgp_static_set_safi(afi_t afi
, safi_t safi
, struct vty
*vty
,
5103 const char *ip_str
, const char *rd_str
,
5104 const char *label_str
, const char *rmap_str
,
5105 int evpn_type
, const char *esi
, const char *gwip
,
5106 const char *ethtag
, const char *routermac
)
5108 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
5111 struct prefix_rd prd
;
5112 struct bgp_node
*prn
;
5113 struct bgp_node
*rn
;
5114 struct bgp_table
*table
;
5115 struct bgp_static
*bgp_static
;
5116 mpls_label_t label
= MPLS_INVALID_LABEL
;
5117 struct prefix gw_ip
;
5119 /* validate ip prefix */
5120 ret
= str2prefix(ip_str
, &p
);
5122 vty_out(vty
, "%% Malformed prefix\n");
5123 return CMD_WARNING_CONFIG_FAILED
;
5126 if ((afi
== AFI_L2VPN
)
5127 && (bgp_build_evpn_prefix(evpn_type
,
5128 ethtag
!= NULL
? atol(ethtag
) : 0, &p
))) {
5129 vty_out(vty
, "%% L2VPN prefix could not be forged\n");
5130 return CMD_WARNING_CONFIG_FAILED
;
5133 ret
= str2prefix_rd(rd_str
, &prd
);
5135 vty_out(vty
, "%% Malformed rd\n");
5136 return CMD_WARNING_CONFIG_FAILED
;
5140 unsigned long label_val
;
5141 label_val
= strtoul(label_str
, NULL
, 10);
5142 encode_label(label_val
, &label
);
5145 if (safi
== SAFI_EVPN
) {
5146 if (esi
&& str2esi(esi
, NULL
) == 0) {
5147 vty_out(vty
, "%% Malformed ESI\n");
5148 return CMD_WARNING_CONFIG_FAILED
;
5150 if (routermac
&& prefix_str2mac(routermac
, NULL
) == 0) {
5151 vty_out(vty
, "%% Malformed Router MAC\n");
5152 return CMD_WARNING_CONFIG_FAILED
;
5155 memset(&gw_ip
, 0, sizeof(struct prefix
));
5156 ret
= str2prefix(gwip
, &gw_ip
);
5158 vty_out(vty
, "%% Malformed GatewayIp\n");
5159 return CMD_WARNING_CONFIG_FAILED
;
5161 if ((gw_ip
.family
== AF_INET
5162 && is_evpn_prefix_ipaddr_v6(
5163 (struct prefix_evpn
*)&p
))
5164 || (gw_ip
.family
== AF_INET6
5165 && is_evpn_prefix_ipaddr_v4(
5166 (struct prefix_evpn
*)&p
))) {
5168 "%% GatewayIp family differs with IP prefix\n");
5169 return CMD_WARNING_CONFIG_FAILED
;
5173 prn
= bgp_node_get(bgp
->route
[afi
][safi
], (struct prefix
*)&prd
);
5174 if (prn
->info
== NULL
)
5175 prn
->info
= bgp_table_init(bgp
, afi
, safi
);
5177 bgp_unlock_node(prn
);
5180 rn
= bgp_node_get(table
, &p
);
5183 vty_out(vty
, "%% Same network configuration exists\n");
5184 bgp_unlock_node(rn
);
5186 /* New configuration. */
5187 bgp_static
= bgp_static_new();
5188 bgp_static
->backdoor
= 0;
5189 bgp_static
->valid
= 0;
5190 bgp_static
->igpmetric
= 0;
5191 bgp_static
->igpnexthop
.s_addr
= 0;
5192 bgp_static
->label
= label
;
5193 bgp_static
->prd
= prd
;
5196 if (bgp_static
->rmap
.name
)
5197 XFREE(MTYPE_ROUTE_MAP_NAME
,
5198 bgp_static
->rmap
.name
);
5199 bgp_static
->rmap
.name
=
5200 XSTRDUP(MTYPE_ROUTE_MAP_NAME
, rmap_str
);
5201 bgp_static
->rmap
.map
=
5202 route_map_lookup_by_name(rmap_str
);
5205 if (safi
== SAFI_EVPN
) {
5207 bgp_static
->eth_s_id
=
5209 sizeof(struct eth_segment_id
));
5210 str2esi(esi
, bgp_static
->eth_s_id
);
5213 bgp_static
->router_mac
=
5214 XCALLOC(MTYPE_ATTR
, ETH_ALEN
+ 1);
5215 (void)prefix_str2mac(routermac
,
5216 bgp_static
->router_mac
);
5219 prefix_copy(&bgp_static
->gatewayIp
, &gw_ip
);
5221 rn
->info
= bgp_static
;
5223 bgp_static
->valid
= 1;
5224 bgp_static_update_safi(bgp
, &p
, bgp_static
, afi
, safi
);
5230 /* Configure static BGP network. */
5231 int bgp_static_unset_safi(afi_t afi
, safi_t safi
, struct vty
*vty
,
5232 const char *ip_str
, const char *rd_str
,
5233 const char *label_str
, int evpn_type
, const char *esi
,
5234 const char *gwip
, const char *ethtag
)
5236 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
5239 struct prefix_rd prd
;
5240 struct bgp_node
*prn
;
5241 struct bgp_node
*rn
;
5242 struct bgp_table
*table
;
5243 struct bgp_static
*bgp_static
;
5244 mpls_label_t label
= MPLS_INVALID_LABEL
;
5246 /* Convert IP prefix string to struct prefix. */
5247 ret
= str2prefix(ip_str
, &p
);
5249 vty_out(vty
, "%% Malformed prefix\n");
5250 return CMD_WARNING_CONFIG_FAILED
;
5253 if ((afi
== AFI_L2VPN
)
5254 && (bgp_build_evpn_prefix(evpn_type
,
5255 ethtag
!= NULL
? atol(ethtag
) : 0, &p
))) {
5256 vty_out(vty
, "%% L2VPN prefix could not be forged\n");
5257 return CMD_WARNING_CONFIG_FAILED
;
5259 ret
= str2prefix_rd(rd_str
, &prd
);
5261 vty_out(vty
, "%% Malformed rd\n");
5262 return CMD_WARNING_CONFIG_FAILED
;
5266 unsigned long label_val
;
5267 label_val
= strtoul(label_str
, NULL
, 10);
5268 encode_label(label_val
, &label
);
5271 prn
= bgp_node_get(bgp
->route
[afi
][safi
], (struct prefix
*)&prd
);
5272 if (prn
->info
== NULL
)
5273 prn
->info
= bgp_table_init(bgp
, afi
, safi
);
5275 bgp_unlock_node(prn
);
5278 rn
= bgp_node_lookup(table
, &p
);
5281 bgp_static_withdraw_safi(bgp
, &p
, afi
, safi
, &prd
);
5283 bgp_static
= rn
->info
;
5284 bgp_static_free(bgp_static
);
5286 bgp_unlock_node(rn
);
5287 bgp_unlock_node(rn
);
5289 vty_out(vty
, "%% Can't find the route\n");
5294 static int bgp_table_map_set(struct vty
*vty
, afi_t afi
, safi_t safi
,
5295 const char *rmap_name
)
5297 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
5298 struct bgp_rmap
*rmap
;
5300 rmap
= &bgp
->table_map
[afi
][safi
];
5303 XFREE(MTYPE_ROUTE_MAP_NAME
, rmap
->name
);
5304 rmap
->name
= XSTRDUP(MTYPE_ROUTE_MAP_NAME
, rmap_name
);
5305 rmap
->map
= route_map_lookup_by_name(rmap_name
);
5308 XFREE(MTYPE_ROUTE_MAP_NAME
, rmap
->name
);
5313 if (bgp_fibupd_safi(safi
))
5314 bgp_zebra_announce_table(bgp
, afi
, safi
);
5319 static int bgp_table_map_unset(struct vty
*vty
, afi_t afi
, safi_t safi
,
5320 const char *rmap_name
)
5322 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
5323 struct bgp_rmap
*rmap
;
5325 rmap
= &bgp
->table_map
[afi
][safi
];
5327 XFREE(MTYPE_ROUTE_MAP_NAME
, rmap
->name
);
5331 if (bgp_fibupd_safi(safi
))
5332 bgp_zebra_announce_table(bgp
, afi
, safi
);
5337 void bgp_config_write_table_map(struct vty
*vty
, struct bgp
*bgp
, afi_t afi
,
5340 if (bgp
->table_map
[afi
][safi
].name
) {
5341 vty_out(vty
, " table-map %s\n",
5342 bgp
->table_map
[afi
][safi
].name
);
5346 DEFUN (bgp_table_map
,
5349 "BGP table to RIB route download filter\n"
5350 "Name of the route map\n")
5353 return bgp_table_map_set(vty
, bgp_node_afi(vty
), bgp_node_safi(vty
),
5354 argv
[idx_word
]->arg
);
5356 DEFUN (no_bgp_table_map
,
5357 no_bgp_table_map_cmd
,
5358 "no table-map WORD",
5360 "BGP table to RIB route download filter\n"
5361 "Name of the route map\n")
5364 return bgp_table_map_unset(vty
, bgp_node_afi(vty
), bgp_node_safi(vty
),
5365 argv
[idx_word
]->arg
);
5371 <A.B.C.D/M$prefix|A.B.C.D$address [mask A.B.C.D$netmask]> \
5372 [{route-map WORD$map_name|label-index (0-1048560)$label_index| \
5373 backdoor$backdoor}]",
5375 "Specify a network to announce via BGP\n"
5380 "Route-map to modify the attributes\n"
5381 "Name of the route map\n"
5382 "Label index to associate with the prefix\n"
5383 "Label index value\n"
5384 "Specify a BGP backdoor route\n")
5386 char addr_prefix_str
[BUFSIZ
];
5391 ret
= netmask_str2prefix_str(address_str
, netmask_str
,
5394 vty_out(vty
, "%% Inconsistent address and mask\n");
5395 return CMD_WARNING_CONFIG_FAILED
;
5399 return bgp_static_set(
5400 vty
, no
, address_str
? addr_prefix_str
: prefix_str
, AFI_IP
,
5401 bgp_node_safi(vty
), map_name
, backdoor
? 1 : 0,
5402 label_index
? (uint32_t)label_index
: BGP_INVALID_LABEL_INDEX
);
5405 DEFPY(ipv6_bgp_network
,
5406 ipv6_bgp_network_cmd
,
5407 "[no] network X:X::X:X/M$prefix \
5408 [{route-map WORD$map_name|label-index (0-1048560)$label_index}]",
5410 "Specify a network to announce via BGP\n"
5412 "Route-map to modify the attributes\n"
5413 "Name of the route map\n"
5414 "Label index to associate with the prefix\n"
5415 "Label index value\n")
5417 return bgp_static_set(
5418 vty
, no
, prefix_str
, AFI_IP6
, bgp_node_safi(vty
), map_name
, 0,
5419 label_index
? (uint32_t)label_index
: BGP_INVALID_LABEL_INDEX
);
5422 /* Aggreagete address:
5424 advertise-map Set condition to advertise attribute
5425 as-set Generate AS set path information
5426 attribute-map Set attributes of aggregate
5427 route-map Set parameters of aggregate
5428 summary-only Filter more specific routes from updates
5429 suppress-map Conditionally filter more specific routes from updates
5432 struct bgp_aggregate
{
5433 /* Summary-only flag. */
5434 uint8_t summary_only
;
5436 /* AS set generation. */
5439 /* Route-map for aggregated route. */
5440 struct route_map
*map
;
5442 /* Suppress-count. */
5443 unsigned long count
;
5445 /* SAFI configuration. */
5449 static struct bgp_aggregate
*bgp_aggregate_new(void)
5451 return XCALLOC(MTYPE_BGP_AGGREGATE
, sizeof(struct bgp_aggregate
));
5454 static void bgp_aggregate_free(struct bgp_aggregate
*aggregate
)
5456 XFREE(MTYPE_BGP_AGGREGATE
, aggregate
);
5459 static int bgp_aggregate_info_same(struct bgp_info
*ri
, uint8_t origin
,
5460 struct aspath
*aspath
,
5461 struct community
*comm
)
5463 static struct aspath
*ae
= NULL
;
5466 ae
= aspath_empty();
5471 if (origin
!= ri
->attr
->origin
)
5474 if (!aspath_cmp(ri
->attr
->aspath
, (aspath
) ? aspath
: ae
))
5477 if (!community_cmp(ri
->attr
->community
, comm
))
5483 static void bgp_aggregate_install(struct bgp
*bgp
, afi_t afi
, safi_t safi
,
5484 struct prefix
*p
, uint8_t origin
,
5485 struct aspath
*aspath
,
5486 struct community
*community
,
5487 uint8_t atomic_aggregate
,
5488 struct bgp_aggregate
*aggregate
)
5490 struct bgp_node
*rn
;
5491 struct bgp_table
*table
;
5492 struct bgp_info
*ri
, *new;
5494 table
= bgp
->rib
[afi
][safi
];
5496 rn
= bgp_node_get(table
, p
);
5498 for (ri
= rn
->info
; ri
; ri
= ri
->next
)
5499 if (ri
->peer
== bgp
->peer_self
&& ri
->type
== ZEBRA_ROUTE_BGP
5500 && ri
->sub_type
== BGP_ROUTE_AGGREGATE
)
5503 if (aggregate
->count
> 0) {
5505 * If the aggregate information has not changed
5506 * no need to re-install it again.
5508 if (bgp_aggregate_info_same(rn
->info
, origin
, aspath
,
5510 bgp_unlock_node(rn
);
5513 aspath_free(aspath
);
5515 community_free(community
);
5521 * Mark the old as unusable
5524 bgp_info_delete(rn
, ri
);
5527 ZEBRA_ROUTE_BGP
, BGP_ROUTE_AGGREGATE
, 0, bgp
->peer_self
,
5528 bgp_attr_aggregate_intern(bgp
, origin
, aspath
,
5529 community
, aggregate
->as_set
,
5532 SET_FLAG(new->flags
, BGP_INFO_VALID
);
5534 bgp_info_add(rn
, new);
5535 bgp_process(bgp
, rn
, afi
, safi
);
5537 for (ri
= rn
->info
; ri
; ri
= ri
->next
)
5538 if (ri
->peer
== bgp
->peer_self
5539 && ri
->type
== ZEBRA_ROUTE_BGP
5540 && ri
->sub_type
== BGP_ROUTE_AGGREGATE
)
5543 /* Withdraw static BGP route from routing table. */
5545 bgp_info_delete(rn
, ri
);
5546 bgp_process(bgp
, rn
, afi
, safi
);
5550 bgp_unlock_node(rn
);
5553 /* Update an aggregate as routes are added/removed from the BGP table */
5554 static void bgp_aggregate_route(struct bgp
*bgp
, struct prefix
*p
,
5555 struct bgp_info
*rinew
, afi_t afi
, safi_t safi
,
5556 struct bgp_info
*del
,
5557 struct bgp_aggregate
*aggregate
)
5559 struct bgp_table
*table
;
5560 struct bgp_node
*top
;
5561 struct bgp_node
*rn
;
5563 struct aspath
*aspath
= NULL
;
5564 struct aspath
*asmerge
= NULL
;
5565 struct community
*community
= NULL
;
5566 struct community
*commerge
= NULL
;
5567 struct bgp_info
*ri
;
5568 unsigned long match
= 0;
5569 uint8_t atomic_aggregate
= 0;
5571 /* ORIGIN attribute: If at least one route among routes that are
5572 aggregated has ORIGIN with the value INCOMPLETE, then the
5573 aggregated route must have the ORIGIN attribute with the value
5574 INCOMPLETE. Otherwise, if at least one route among routes that
5575 are aggregated has ORIGIN with the value EGP, then the aggregated
5576 route must have the origin attribute with the value EGP. In all
5577 other case the value of the ORIGIN attribute of the aggregated
5578 route is INTERNAL. */
5579 origin
= BGP_ORIGIN_IGP
;
5581 table
= bgp
->rib
[afi
][safi
];
5583 top
= bgp_node_get(table
, p
);
5584 for (rn
= bgp_node_get(table
, p
); rn
;
5585 rn
= bgp_route_next_until(rn
, top
)) {
5586 if (rn
->p
.prefixlen
<= p
->prefixlen
)
5591 for (ri
= rn
->info
; ri
; ri
= ri
->next
) {
5592 if (BGP_INFO_HOLDDOWN(ri
))
5595 if (del
&& ri
== del
)
5599 & ATTR_FLAG_BIT(BGP_ATTR_ATOMIC_AGGREGATE
))
5600 atomic_aggregate
= 1;
5602 if (ri
->sub_type
== BGP_ROUTE_AGGREGATE
)
5606 * summary-only aggregate route suppress
5607 * aggregated route announcements.
5609 if (aggregate
->summary_only
) {
5610 (bgp_info_extra_get(ri
))->suppress
++;
5611 bgp_info_set_flag(rn
, ri
,
5612 BGP_INFO_ATTR_CHANGED
);
5619 * If at least one route among routes that are
5620 * aggregated has ORIGIN with the value INCOMPLETE,
5621 * then the aggregated route MUST have the ORIGIN
5622 * attribute with the value INCOMPLETE. Otherwise, if
5623 * at least one route among routes that are aggregated
5624 * has ORIGIN with the value EGP, then the aggregated
5625 * route MUST have the ORIGIN attribute with the value
5628 if (origin
< ri
->attr
->origin
)
5629 origin
= ri
->attr
->origin
;
5631 if (!aggregate
->as_set
)
5635 * as-set aggregate route generate origin, as path,
5636 * and community aggregation.
5639 asmerge
= aspath_aggregate(aspath
,
5641 aspath_free(aspath
);
5644 aspath
= aspath_dup(ri
->attr
->aspath
);
5646 if (!ri
->attr
->community
)
5650 commerge
= community_merge(community
,
5651 ri
->attr
->community
);
5652 community
= community_uniq_sort(commerge
);
5653 community_free(commerge
);
5655 community
= community_dup(ri
->attr
->community
);
5658 bgp_process(bgp
, rn
, afi
, safi
);
5660 bgp_unlock_node(top
);
5665 if (aggregate
->summary_only
)
5666 (bgp_info_extra_get(rinew
))->suppress
++;
5668 if (origin
< rinew
->attr
->origin
)
5669 origin
= rinew
->attr
->origin
;
5671 if (aggregate
->as_set
) {
5673 asmerge
= aspath_aggregate(aspath
,
5674 rinew
->attr
->aspath
);
5675 aspath_free(aspath
);
5678 aspath
= aspath_dup(rinew
->attr
->aspath
);
5680 if (rinew
->attr
->community
) {
5682 commerge
= community_merge(
5684 rinew
->attr
->community
);
5686 community_uniq_sort(commerge
);
5687 community_free(commerge
);
5689 community
= community_dup(
5690 rinew
->attr
->community
);
5695 bgp_aggregate_install(bgp
, afi
, safi
, p
, origin
, aspath
, community
,
5696 atomic_aggregate
, aggregate
);
5698 if (aggregate
->count
== 0) {
5700 aspath_free(aspath
);
5702 community_free(community
);
5706 static void bgp_aggregate_delete(struct bgp
*bgp
, struct prefix
*p
, afi_t afi
,
5707 safi_t safi
, struct bgp_aggregate
*aggregate
)
5709 struct bgp_table
*table
;
5710 struct bgp_node
*top
;
5711 struct bgp_node
*rn
;
5712 struct bgp_info
*ri
;
5713 unsigned long match
;
5715 table
= bgp
->rib
[afi
][safi
];
5717 /* If routes exists below this node, generate aggregate routes. */
5718 top
= bgp_node_get(table
, p
);
5719 for (rn
= bgp_node_get(table
, p
); rn
;
5720 rn
= bgp_route_next_until(rn
, top
)) {
5721 if (rn
->p
.prefixlen
<= p
->prefixlen
)
5725 for (ri
= rn
->info
; ri
; ri
= ri
->next
) {
5726 if (BGP_INFO_HOLDDOWN(ri
))
5729 if (ri
->sub_type
== BGP_ROUTE_AGGREGATE
)
5732 if (aggregate
->summary_only
&& ri
->extra
) {
5733 ri
->extra
->suppress
--;
5735 if (ri
->extra
->suppress
== 0) {
5737 rn
, ri
, BGP_INFO_ATTR_CHANGED
);
5744 /* If this node was suppressed, process the change. */
5746 bgp_process(bgp
, rn
, afi
, safi
);
5748 bgp_unlock_node(top
);
5751 void bgp_aggregate_increment(struct bgp
*bgp
, struct prefix
*p
,
5752 struct bgp_info
*ri
, afi_t afi
, safi_t safi
)
5754 struct bgp_node
*child
;
5755 struct bgp_node
*rn
;
5756 struct bgp_aggregate
*aggregate
;
5757 struct bgp_table
*table
;
5759 table
= bgp
->aggregate
[afi
][safi
];
5761 /* No aggregates configured. */
5762 if (bgp_table_top_nolock(table
) == NULL
)
5765 if (p
->prefixlen
== 0)
5768 if (BGP_INFO_HOLDDOWN(ri
))
5771 child
= bgp_node_get(table
, p
);
5773 /* Aggregate address configuration check. */
5774 for (rn
= child
; rn
; rn
= bgp_node_parent_nolock(rn
))
5775 if ((aggregate
= rn
->info
) != NULL
5776 && rn
->p
.prefixlen
< p
->prefixlen
) {
5777 bgp_aggregate_delete(bgp
, &rn
->p
, afi
, safi
, aggregate
);
5778 bgp_aggregate_route(bgp
, &rn
->p
, ri
, afi
, safi
, NULL
,
5781 bgp_unlock_node(child
);
5784 void bgp_aggregate_decrement(struct bgp
*bgp
, struct prefix
*p
,
5785 struct bgp_info
*del
, afi_t afi
, safi_t safi
)
5787 struct bgp_node
*child
;
5788 struct bgp_node
*rn
;
5789 struct bgp_aggregate
*aggregate
;
5790 struct bgp_table
*table
;
5792 table
= bgp
->aggregate
[afi
][safi
];
5794 /* No aggregates configured. */
5795 if (bgp_table_top_nolock(table
) == NULL
)
5798 if (p
->prefixlen
== 0)
5801 child
= bgp_node_get(table
, p
);
5803 /* Aggregate address configuration check. */
5804 for (rn
= child
; rn
; rn
= bgp_node_parent_nolock(rn
))
5805 if ((aggregate
= rn
->info
) != NULL
5806 && rn
->p
.prefixlen
< p
->prefixlen
) {
5807 bgp_aggregate_delete(bgp
, &rn
->p
, afi
, safi
, aggregate
);
5808 bgp_aggregate_route(bgp
, &rn
->p
, NULL
, afi
, safi
, del
,
5811 bgp_unlock_node(child
);
5814 /* Aggregate route attribute. */
5815 #define AGGREGATE_SUMMARY_ONLY 1
5816 #define AGGREGATE_AS_SET 1
5818 static int bgp_aggregate_unset(struct vty
*vty
, const char *prefix_str
,
5819 afi_t afi
, safi_t safi
)
5821 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
5824 struct bgp_node
*rn
;
5825 struct bgp_aggregate
*aggregate
;
5827 /* Convert string to prefix structure. */
5828 ret
= str2prefix(prefix_str
, &p
);
5830 vty_out(vty
, "Malformed prefix\n");
5831 return CMD_WARNING_CONFIG_FAILED
;
5835 /* Old configuration check. */
5836 rn
= bgp_node_lookup(bgp
->aggregate
[afi
][safi
], &p
);
5839 "%% There is no aggregate-address configuration.\n");
5840 return CMD_WARNING_CONFIG_FAILED
;
5843 aggregate
= rn
->info
;
5844 bgp_aggregate_delete(bgp
, &p
, afi
, safi
, aggregate
);
5845 bgp_aggregate_install(bgp
, afi
, safi
, &p
, 0, NULL
, NULL
, 0, aggregate
);
5847 /* Unlock aggregate address configuration. */
5849 bgp_aggregate_free(aggregate
);
5850 bgp_unlock_node(rn
);
5851 bgp_unlock_node(rn
);
5856 static int bgp_aggregate_set(struct vty
*vty
, const char *prefix_str
, afi_t afi
,
5857 safi_t safi
, uint8_t summary_only
, uint8_t as_set
)
5859 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
5862 struct bgp_node
*rn
;
5863 struct bgp_aggregate
*aggregate
;
5865 /* Convert string to prefix structure. */
5866 ret
= str2prefix(prefix_str
, &p
);
5868 vty_out(vty
, "Malformed prefix\n");
5869 return CMD_WARNING_CONFIG_FAILED
;
5873 if ((afi
== AFI_IP
&& p
.prefixlen
== IPV4_MAX_BITLEN
) ||
5874 (afi
== AFI_IP6
&& p
.prefixlen
== IPV6_MAX_BITLEN
)) {
5875 vty_out(vty
, "Specified prefix: %s will not result in any useful aggregation, disallowing\n",
5877 return CMD_WARNING_CONFIG_FAILED
;
5880 /* Old configuration check. */
5881 rn
= bgp_node_get(bgp
->aggregate
[afi
][safi
], &p
);
5884 vty_out(vty
, "There is already same aggregate network.\n");
5885 /* try to remove the old entry */
5886 ret
= bgp_aggregate_unset(vty
, prefix_str
, afi
, safi
);
5888 vty_out(vty
, "Error deleting aggregate.\n");
5889 bgp_unlock_node(rn
);
5890 return CMD_WARNING_CONFIG_FAILED
;
5894 /* Make aggregate address structure. */
5895 aggregate
= bgp_aggregate_new();
5896 aggregate
->summary_only
= summary_only
;
5897 aggregate
->as_set
= as_set
;
5898 aggregate
->safi
= safi
;
5899 rn
->info
= aggregate
;
5901 /* Aggregate address insert into BGP routing table. */
5902 bgp_aggregate_route(bgp
, &p
, NULL
, afi
, safi
, NULL
, aggregate
);
5907 DEFUN (aggregate_address
,
5908 aggregate_address_cmd
,
5909 "aggregate-address A.B.C.D/M [<as-set [summary-only]|summary-only [as-set]>]",
5910 "Configure BGP aggregate entries\n"
5911 "Aggregate prefix\n"
5912 "Generate AS set path information\n"
5913 "Filter more specific routes from updates\n"
5914 "Filter more specific routes from updates\n"
5915 "Generate AS set path information\n")
5918 argv_find(argv
, argc
, "A.B.C.D/M", &idx
);
5919 char *prefix
= argv
[idx
]->arg
;
5921 argv_find(argv
, argc
, "as-set", &idx
) ? AGGREGATE_AS_SET
: 0;
5923 int summary_only
= argv_find(argv
, argc
, "summary-only", &idx
)
5924 ? AGGREGATE_SUMMARY_ONLY
5927 return bgp_aggregate_set(vty
, prefix
, AFI_IP
, bgp_node_safi(vty
),
5928 summary_only
, as_set
);
5931 DEFUN (aggregate_address_mask
,
5932 aggregate_address_mask_cmd
,
5933 "aggregate-address A.B.C.D A.B.C.D [<as-set [summary-only]|summary-only [as-set]>]",
5934 "Configure BGP aggregate entries\n"
5935 "Aggregate address\n"
5937 "Generate AS set path information\n"
5938 "Filter more specific routes from updates\n"
5939 "Filter more specific routes from updates\n"
5940 "Generate AS set path information\n")
5943 argv_find(argv
, argc
, "A.B.C.D", &idx
);
5944 char *prefix
= argv
[idx
]->arg
;
5945 char *mask
= argv
[idx
+ 1]->arg
;
5947 argv_find(argv
, argc
, "as-set", &idx
) ? AGGREGATE_AS_SET
: 0;
5949 int summary_only
= argv_find(argv
, argc
, "summary-only", &idx
)
5950 ? AGGREGATE_SUMMARY_ONLY
5953 char prefix_str
[BUFSIZ
];
5954 int ret
= netmask_str2prefix_str(prefix
, mask
, prefix_str
);
5957 vty_out(vty
, "%% Inconsistent address and mask\n");
5958 return CMD_WARNING_CONFIG_FAILED
;
5961 return bgp_aggregate_set(vty
, prefix_str
, AFI_IP
, bgp_node_safi(vty
),
5962 summary_only
, as_set
);
5965 DEFUN (no_aggregate_address
,
5966 no_aggregate_address_cmd
,
5967 "no aggregate-address A.B.C.D/M [<as-set [summary-only]|summary-only [as-set]>]",
5969 "Configure BGP aggregate entries\n"
5970 "Aggregate prefix\n"
5971 "Generate AS set path information\n"
5972 "Filter more specific routes from updates\n"
5973 "Filter more specific routes from updates\n"
5974 "Generate AS set path information\n")
5977 argv_find(argv
, argc
, "A.B.C.D/M", &idx
);
5978 char *prefix
= argv
[idx
]->arg
;
5979 return bgp_aggregate_unset(vty
, prefix
, AFI_IP
, bgp_node_safi(vty
));
5982 DEFUN (no_aggregate_address_mask
,
5983 no_aggregate_address_mask_cmd
,
5984 "no aggregate-address A.B.C.D A.B.C.D [<as-set [summary-only]|summary-only [as-set]>]",
5986 "Configure BGP aggregate entries\n"
5987 "Aggregate address\n"
5989 "Generate AS set path information\n"
5990 "Filter more specific routes from updates\n"
5991 "Filter more specific routes from updates\n"
5992 "Generate AS set path information\n")
5995 argv_find(argv
, argc
, "A.B.C.D", &idx
);
5996 char *prefix
= argv
[idx
]->arg
;
5997 char *mask
= argv
[idx
+ 1]->arg
;
5999 char prefix_str
[BUFSIZ
];
6000 int ret
= netmask_str2prefix_str(prefix
, mask
, prefix_str
);
6003 vty_out(vty
, "%% Inconsistent address and mask\n");
6004 return CMD_WARNING_CONFIG_FAILED
;
6007 return bgp_aggregate_unset(vty
, prefix_str
, AFI_IP
, bgp_node_safi(vty
));
6010 DEFUN (ipv6_aggregate_address
,
6011 ipv6_aggregate_address_cmd
,
6012 "aggregate-address X:X::X:X/M [summary-only]",
6013 "Configure BGP aggregate entries\n"
6014 "Aggregate prefix\n"
6015 "Filter more specific routes from updates\n")
6018 argv_find(argv
, argc
, "X:X::X:X/M", &idx
);
6019 char *prefix
= argv
[idx
]->arg
;
6020 int sum_only
= argv_find(argv
, argc
, "summary-only", &idx
)
6021 ? AGGREGATE_SUMMARY_ONLY
6023 return bgp_aggregate_set(vty
, prefix
, AFI_IP6
, SAFI_UNICAST
, sum_only
,
6027 DEFUN (no_ipv6_aggregate_address
,
6028 no_ipv6_aggregate_address_cmd
,
6029 "no aggregate-address X:X::X:X/M [summary-only]",
6031 "Configure BGP aggregate entries\n"
6032 "Aggregate prefix\n"
6033 "Filter more specific routes from updates\n")
6036 argv_find(argv
, argc
, "X:X::X:X/M", &idx
);
6037 char *prefix
= argv
[idx
]->arg
;
6038 return bgp_aggregate_unset(vty
, prefix
, AFI_IP6
, SAFI_UNICAST
);
6041 /* Redistribute route treatment. */
6042 void bgp_redistribute_add(struct bgp
*bgp
, struct prefix
*p
,
6043 const union g_addr
*nexthop
, ifindex_t ifindex
,
6044 enum nexthop_types_t nhtype
, uint32_t metric
,
6045 uint8_t type
, unsigned short instance
,
6048 struct bgp_info
*new;
6049 struct bgp_info
*bi
;
6050 struct bgp_info info
;
6051 struct bgp_node
*bn
;
6053 struct attr
*new_attr
;
6056 struct bgp_redist
*red
;
6058 /* Make default attribute. */
6059 bgp_attr_default_set(&attr
, BGP_ORIGIN_INCOMPLETE
);
6062 case NEXTHOP_TYPE_IFINDEX
:
6064 case NEXTHOP_TYPE_IPV4
:
6065 case NEXTHOP_TYPE_IPV4_IFINDEX
:
6066 attr
.nexthop
= nexthop
->ipv4
;
6068 case NEXTHOP_TYPE_IPV6
:
6069 case NEXTHOP_TYPE_IPV6_IFINDEX
:
6070 attr
.mp_nexthop_global
= nexthop
->ipv6
;
6071 attr
.mp_nexthop_len
= BGP_ATTR_NHLEN_IPV6_GLOBAL
;
6073 case NEXTHOP_TYPE_BLACKHOLE
:
6074 switch (p
->family
) {
6076 attr
.nexthop
.s_addr
= INADDR_ANY
;
6079 memset(&attr
.mp_nexthop_global
, 0,
6080 sizeof(attr
.mp_nexthop_global
));
6081 attr
.mp_nexthop_len
= BGP_ATTR_NHLEN_IPV6_GLOBAL
;
6086 attr
.nh_ifindex
= ifindex
;
6089 attr
.flag
|= ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
);
6092 afi
= family2afi(p
->family
);
6094 red
= bgp_redist_lookup(bgp
, afi
, type
, instance
);
6096 struct attr attr_new
;
6098 /* Copy attribute for modification. */
6099 bgp_attr_dup(&attr_new
, &attr
);
6101 if (red
->redist_metric_flag
)
6102 attr_new
.med
= red
->redist_metric
;
6104 /* Apply route-map. */
6105 if (red
->rmap
.name
) {
6106 memset(&info
, 0, sizeof(struct bgp_info
));
6107 info
.peer
= bgp
->peer_self
;
6108 info
.attr
= &attr_new
;
6110 SET_FLAG(bgp
->peer_self
->rmap_type
,
6111 PEER_RMAP_TYPE_REDISTRIBUTE
);
6113 ret
= route_map_apply(red
->rmap
.map
, p
, RMAP_BGP
,
6116 bgp
->peer_self
->rmap_type
= 0;
6118 if (ret
== RMAP_DENYMATCH
) {
6119 /* Free uninterned attribute. */
6120 bgp_attr_flush(&attr_new
);
6122 /* Unintern original. */
6123 aspath_unintern(&attr
.aspath
);
6124 bgp_redistribute_delete(bgp
, p
, type
, instance
);
6129 if (bgp_flag_check(bgp
, BGP_FLAG_GRACEFUL_SHUTDOWN
))
6130 bgp_attr_add_gshut_community(&attr_new
);
6132 bn
= bgp_afi_node_get(bgp
->rib
[afi
][SAFI_UNICAST
], afi
,
6133 SAFI_UNICAST
, p
, NULL
);
6135 new_attr
= bgp_attr_intern(&attr_new
);
6137 for (bi
= bn
->info
; bi
; bi
= bi
->next
)
6138 if (bi
->peer
== bgp
->peer_self
6139 && bi
->sub_type
== BGP_ROUTE_REDISTRIBUTE
)
6143 /* Ensure the (source route) type is updated. */
6145 if (attrhash_cmp(bi
->attr
, new_attr
)
6146 && !CHECK_FLAG(bi
->flags
, BGP_INFO_REMOVED
)) {
6147 bgp_attr_unintern(&new_attr
);
6148 aspath_unintern(&attr
.aspath
);
6149 bgp_unlock_node(bn
);
6152 /* The attribute is changed. */
6153 bgp_info_set_flag(bn
, bi
,
6154 BGP_INFO_ATTR_CHANGED
);
6156 /* Rewrite BGP route information. */
6157 if (CHECK_FLAG(bi
->flags
, BGP_INFO_REMOVED
))
6158 bgp_info_restore(bn
, bi
);
6160 bgp_aggregate_decrement(bgp
, p
, bi
, afi
,
6162 bgp_attr_unintern(&bi
->attr
);
6163 bi
->attr
= new_attr
;
6164 bi
->uptime
= bgp_clock();
6166 /* Process change. */
6167 bgp_aggregate_increment(bgp
, p
, bi
, afi
,
6169 bgp_process(bgp
, bn
, afi
, SAFI_UNICAST
);
6170 bgp_unlock_node(bn
);
6171 aspath_unintern(&attr
.aspath
);
6173 if ((bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
)
6175 == BGP_INSTANCE_TYPE_DEFAULT
)) {
6177 vpn_leak_from_vrf_update(
6178 bgp_get_default(), bgp
, bi
);
6184 new = info_make(type
, BGP_ROUTE_REDISTRIBUTE
, instance
,
6185 bgp
->peer_self
, new_attr
, bn
);
6186 SET_FLAG(new->flags
, BGP_INFO_VALID
);
6188 bgp_aggregate_increment(bgp
, p
, new, afi
, SAFI_UNICAST
);
6189 bgp_info_add(bn
, new);
6190 bgp_unlock_node(bn
);
6191 bgp_process(bgp
, bn
, afi
, SAFI_UNICAST
);
6193 if ((bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
)
6194 || (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
6196 vpn_leak_from_vrf_update(bgp_get_default(), bgp
, new);
6200 /* Unintern original. */
6201 aspath_unintern(&attr
.aspath
);
6204 void bgp_redistribute_delete(struct bgp
*bgp
, struct prefix
*p
, uint8_t type
,
6205 unsigned short instance
)
6208 struct bgp_node
*rn
;
6209 struct bgp_info
*ri
;
6210 struct bgp_redist
*red
;
6212 afi
= family2afi(p
->family
);
6214 red
= bgp_redist_lookup(bgp
, afi
, type
, instance
);
6216 rn
= bgp_afi_node_get(bgp
->rib
[afi
][SAFI_UNICAST
], afi
,
6217 SAFI_UNICAST
, p
, NULL
);
6219 for (ri
= rn
->info
; ri
; ri
= ri
->next
)
6220 if (ri
->peer
== bgp
->peer_self
&& ri
->type
== type
)
6224 if ((bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
)
6225 || (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
6227 vpn_leak_from_vrf_withdraw(bgp_get_default(),
6230 bgp_aggregate_decrement(bgp
, p
, ri
, afi
, SAFI_UNICAST
);
6231 bgp_info_delete(rn
, ri
);
6232 bgp_process(bgp
, rn
, afi
, SAFI_UNICAST
);
6234 bgp_unlock_node(rn
);
6238 /* Withdraw specified route type's route. */
6239 void bgp_redistribute_withdraw(struct bgp
*bgp
, afi_t afi
, int type
,
6240 unsigned short instance
)
6242 struct bgp_node
*rn
;
6243 struct bgp_info
*ri
;
6244 struct bgp_table
*table
;
6246 table
= bgp
->rib
[afi
][SAFI_UNICAST
];
6248 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
)) {
6249 for (ri
= rn
->info
; ri
; ri
= ri
->next
)
6250 if (ri
->peer
== bgp
->peer_self
&& ri
->type
== type
6251 && ri
->instance
== instance
)
6255 if ((bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
)
6256 || (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
6258 vpn_leak_from_vrf_withdraw(bgp_get_default(),
6261 bgp_aggregate_decrement(bgp
, &rn
->p
, ri
, afi
,
6263 bgp_info_delete(rn
, ri
);
6264 bgp_process(bgp
, rn
, afi
, SAFI_UNICAST
);
6269 /* Static function to display route. */
6270 static void route_vty_out_route(struct prefix
*p
, struct vty
*vty
,
6276 if (p
->family
== AF_INET
) {
6280 inet_ntop(p
->family
, &p
->u
.prefix
, buf
, BUFSIZ
),
6283 json_object_string_add(json
, "prefix",
6284 inet_ntop(p
->family
,
6287 json_object_int_add(json
, "prefixLen", p
->prefixlen
);
6289 } else if (p
->family
== AF_ETHERNET
) {
6290 prefix2str(p
, buf
, PREFIX_STRLEN
);
6291 len
= vty_out(vty
, "%s", buf
);
6292 } else if (p
->family
== AF_EVPN
) {
6296 bgp_evpn_route2str((struct prefix_evpn
*)p
, buf
,
6299 bgp_evpn_route2json((struct prefix_evpn
*)p
, json
);
6300 } else if (p
->family
== AF_FLOWSPEC
) {
6301 route_vty_out_flowspec(vty
, p
, NULL
,
6303 NLRI_STRING_FORMAT_JSON_SIMPLE
:
6304 NLRI_STRING_FORMAT_MIN
, json
);
6309 inet_ntop(p
->family
, &p
->u
.prefix
, buf
, BUFSIZ
),
6316 vty_out(vty
, "\n%*s", 20, " ");
6318 vty_out(vty
, "%*s", len
, " ");
6322 enum bgp_display_type
{
6326 /* Print the short form route status for a bgp_info */
6327 static void route_vty_short_status_out(struct vty
*vty
, struct bgp_info
*binfo
,
6328 json_object
*json_path
)
6332 /* Route status display. */
6333 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_REMOVED
))
6334 json_object_boolean_true_add(json_path
, "removed");
6336 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_STALE
))
6337 json_object_boolean_true_add(json_path
, "stale");
6339 if (binfo
->extra
&& binfo
->extra
->suppress
)
6340 json_object_boolean_true_add(json_path
, "suppressed");
6342 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_VALID
)
6343 && !CHECK_FLAG(binfo
->flags
, BGP_INFO_HISTORY
))
6344 json_object_boolean_true_add(json_path
, "valid");
6347 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_HISTORY
))
6348 json_object_boolean_true_add(json_path
, "history");
6350 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_DAMPED
))
6351 json_object_boolean_true_add(json_path
, "damped");
6353 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_SELECTED
))
6354 json_object_boolean_true_add(json_path
, "bestpath");
6356 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_MULTIPATH
))
6357 json_object_boolean_true_add(json_path
, "multipath");
6359 /* Internal route. */
6360 if ((binfo
->peer
->as
)
6361 && (binfo
->peer
->as
== binfo
->peer
->local_as
))
6362 json_object_string_add(json_path
, "pathFrom",
6365 json_object_string_add(json_path
, "pathFrom",
6371 /* Route status display. */
6372 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_REMOVED
))
6374 else if (CHECK_FLAG(binfo
->flags
, BGP_INFO_STALE
))
6376 else if (binfo
->extra
&& binfo
->extra
->suppress
)
6378 else if (CHECK_FLAG(binfo
->flags
, BGP_INFO_VALID
)
6379 && !CHECK_FLAG(binfo
->flags
, BGP_INFO_HISTORY
))
6385 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_HISTORY
))
6387 else if (CHECK_FLAG(binfo
->flags
, BGP_INFO_DAMPED
))
6389 else if (CHECK_FLAG(binfo
->flags
, BGP_INFO_SELECTED
))
6391 else if (CHECK_FLAG(binfo
->flags
, BGP_INFO_MULTIPATH
))
6396 /* Internal route. */
6397 if (binfo
->peer
&& (binfo
->peer
->as
)
6398 && (binfo
->peer
->as
== binfo
->peer
->local_as
))
6404 /* called from terminal list command */
6405 void route_vty_out(struct vty
*vty
, struct prefix
*p
, struct bgp_info
*binfo
,
6406 int display
, safi_t safi
, json_object
*json_paths
)
6409 json_object
*json_path
= NULL
;
6410 json_object
*json_nexthops
= NULL
;
6411 json_object
*json_nexthop_global
= NULL
;
6412 json_object
*json_nexthop_ll
= NULL
;
6413 char vrf_id_str
[VRF_NAMSIZ
] = {0};
6414 bool nexthop_self
= CHECK_FLAG(binfo
->flags
, BGP_INFO_ANNC_NH_SELF
)
6417 bool nexthop_othervrf
= false;
6418 vrf_id_t nexthop_vrfid
= VRF_DEFAULT
;
6419 const char *nexthop_vrfname
= "Default";
6422 json_path
= json_object_new_object();
6424 /* short status lead text */
6425 route_vty_short_status_out(vty
, binfo
, json_path
);
6428 /* print prefix and mask */
6430 route_vty_out_route(p
, vty
, json_path
);
6432 vty_out(vty
, "%*s", 17, " ");
6434 route_vty_out_route(p
, vty
, json_path
);
6437 /* Print attribute */
6441 json_object_array_add(json_paths
, json_path
);
6449 * If vrf id of nexthop is different from that of prefix,
6450 * set up printable string to append
6452 if (binfo
->extra
&& binfo
->extra
->bgp_orig
) {
6453 const char *self
= "";
6458 nexthop_othervrf
= true;
6459 nexthop_vrfid
= binfo
->extra
->bgp_orig
->vrf_id
;
6461 if (binfo
->extra
->bgp_orig
->vrf_id
== VRF_UNKNOWN
)
6462 snprintf(vrf_id_str
, sizeof(vrf_id_str
),
6463 "@%s%s", VRFID_NONE_STR
, self
);
6465 snprintf(vrf_id_str
, sizeof(vrf_id_str
), "@%u%s",
6466 binfo
->extra
->bgp_orig
->vrf_id
, self
);
6468 if (binfo
->extra
->bgp_orig
->inst_type
!=
6469 BGP_INSTANCE_TYPE_DEFAULT
)
6471 nexthop_vrfname
= binfo
->extra
->bgp_orig
->name
;
6473 const char *self
= "";
6478 snprintf(vrf_id_str
, sizeof(vrf_id_str
), "%s", self
);
6482 * For ENCAP and EVPN routes, nexthop address family is not
6483 * neccessarily the same as the prefix address family.
6484 * Both SAFI_MPLS_VPN and SAFI_ENCAP use the MP nexthop field
6485 * EVPN routes are also exchanged with a MP nexthop. Currently,
6487 * is only IPv4, the value will be present in either
6489 * attr->mp_nexthop_global_in
6491 if ((safi
== SAFI_ENCAP
) || (safi
== SAFI_MPLS_VPN
)) {
6494 int af
= NEXTHOP_FAMILY(attr
->mp_nexthop_len
);
6498 sprintf(nexthop
, "%s",
6499 inet_ntop(af
, &attr
->mp_nexthop_global_in
, buf
,
6503 sprintf(nexthop
, "%s",
6504 inet_ntop(af
, &attr
->mp_nexthop_global
, buf
,
6508 sprintf(nexthop
, "?");
6513 json_nexthop_global
= json_object_new_object();
6515 json_object_string_add(json_nexthop_global
, "afi",
6516 (af
== AF_INET
) ? "ip" : "ipv6");
6517 json_object_string_add(json_nexthop_global
,
6518 (af
== AF_INET
) ? "ip" : "ipv6",
6520 json_object_boolean_true_add(json_nexthop_global
,
6523 vty_out(vty
, "%s%s", nexthop
, vrf_id_str
);
6524 } else if (safi
== SAFI_EVPN
) {
6526 json_nexthop_global
= json_object_new_object();
6528 json_object_string_add(json_nexthop_global
, "ip",
6529 inet_ntoa(attr
->nexthop
));
6530 json_object_string_add(json_nexthop_global
, "afi",
6532 json_object_boolean_true_add(json_nexthop_global
,
6535 vty_out(vty
, "%-16s%s", inet_ntoa(attr
->nexthop
),
6537 } else if (safi
== SAFI_FLOWSPEC
) {
6538 if (attr
->nexthop
.s_addr
!= 0) {
6540 json_nexthop_global
= json_object_new_object();
6541 json_object_string_add(
6542 json_nexthop_global
, "ip",
6543 inet_ntoa(attr
->nexthop
));
6544 json_object_string_add(json_nexthop_global
,
6546 json_object_boolean_true_add(json_nexthop_global
,
6549 vty_out(vty
, "%-16s", inet_ntoa(attr
->nexthop
));
6552 } else if (p
->family
== AF_INET
&& !BGP_ATTR_NEXTHOP_AFI_IP6(attr
)) {
6554 json_nexthop_global
= json_object_new_object();
6556 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_EVPN
))
6557 json_object_string_add(
6558 json_nexthop_global
, "ip",
6559 inet_ntoa(attr
->mp_nexthop_global_in
));
6561 json_object_string_add(
6562 json_nexthop_global
, "ip",
6563 inet_ntoa(attr
->nexthop
));
6565 json_object_string_add(json_nexthop_global
, "afi",
6567 json_object_boolean_true_add(json_nexthop_global
,
6572 snprintf(buf
, sizeof(buf
), "%s%s",
6573 inet_ntoa(attr
->nexthop
), vrf_id_str
);
6574 vty_out(vty
, "%-16s", buf
);
6579 else if (p
->family
== AF_INET6
|| BGP_ATTR_NEXTHOP_AFI_IP6(attr
)) {
6584 json_nexthop_global
= json_object_new_object();
6585 json_object_string_add(
6586 json_nexthop_global
, "ip",
6587 inet_ntop(AF_INET6
, &attr
->mp_nexthop_global
,
6589 json_object_string_add(json_nexthop_global
, "afi",
6591 json_object_string_add(json_nexthop_global
, "scope",
6594 /* We display both LL & GL if both have been
6596 if ((attr
->mp_nexthop_len
== 32)
6597 || (binfo
->peer
->conf_if
)) {
6598 json_nexthop_ll
= json_object_new_object();
6599 json_object_string_add(
6600 json_nexthop_ll
, "ip",
6602 &attr
->mp_nexthop_local
, buf
,
6604 json_object_string_add(json_nexthop_ll
, "afi",
6606 json_object_string_add(json_nexthop_ll
, "scope",
6609 if ((IPV6_ADDR_CMP(&attr
->mp_nexthop_global
,
6610 &attr
->mp_nexthop_local
)
6612 && !attr
->mp_nexthop_prefer_global
)
6613 json_object_boolean_true_add(
6614 json_nexthop_ll
, "used");
6616 json_object_boolean_true_add(
6617 json_nexthop_global
, "used");
6619 json_object_boolean_true_add(
6620 json_nexthop_global
, "used");
6622 /* Display LL if LL/Global both in table unless
6623 * prefer-global is set */
6624 if (((attr
->mp_nexthop_len
== 32)
6625 && !attr
->mp_nexthop_prefer_global
)
6626 || (binfo
->peer
->conf_if
)) {
6627 if (binfo
->peer
->conf_if
) {
6628 len
= vty_out(vty
, "%s",
6629 binfo
->peer
->conf_if
);
6630 len
= 16 - len
; /* len of IPv6
6636 vty_out(vty
, "\n%*s", 36, " ");
6638 vty_out(vty
, "%*s", len
, " ");
6644 &attr
->mp_nexthop_local
,
6650 vty_out(vty
, "\n%*s", 36, " ");
6652 vty_out(vty
, "%*s", len
, " ");
6658 &attr
->mp_nexthop_global
, buf
,
6664 vty_out(vty
, "\n%*s", 36, " ");
6666 vty_out(vty
, "%*s", len
, " ");
6672 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
))
6674 json_object_int_add(json_path
, "med", attr
->med
);
6676 vty_out(vty
, "%10u", attr
->med
);
6677 else if (!json_paths
)
6681 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
))
6683 json_object_int_add(json_path
, "localpref",
6686 vty_out(vty
, "%7u", attr
->local_pref
);
6687 else if (!json_paths
)
6691 json_object_int_add(json_path
, "weight", attr
->weight
);
6693 vty_out(vty
, "%7u ", attr
->weight
);
6697 json_object_string_add(
6698 json_path
, "peerId",
6699 sockunion2str(&binfo
->peer
->su
, buf
, SU_ADDRSTRLEN
));
6705 json_object_string_add(json_path
, "aspath",
6708 aspath_print_vty(vty
, "%s", attr
->aspath
, " ");
6713 json_object_string_add(json_path
, "origin",
6714 bgp_origin_long_str
[attr
->origin
]);
6716 vty_out(vty
, "%s", bgp_origin_str
[attr
->origin
]);
6720 json_object_boolean_true_add(json_path
,
6721 "announceNexthopSelf");
6722 if (nexthop_othervrf
) {
6723 json_object_string_add(json_path
, "nhVrfName",
6726 json_object_int_add(json_path
, "nhVrfId",
6727 ((nexthop_vrfid
== VRF_UNKNOWN
)
6729 : (int)nexthop_vrfid
));
6734 if (json_nexthop_global
|| json_nexthop_ll
) {
6735 json_nexthops
= json_object_new_array();
6737 if (json_nexthop_global
)
6738 json_object_array_add(json_nexthops
,
6739 json_nexthop_global
);
6741 if (json_nexthop_ll
)
6742 json_object_array_add(json_nexthops
,
6745 json_object_object_add(json_path
, "nexthops",
6749 json_object_array_add(json_paths
, json_path
);
6753 /* prints an additional line, indented, with VNC info, if
6755 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_ENCAP
))
6756 rfapi_vty_out_vncinfo(vty
, p
, binfo
, safi
);
6761 /* called from terminal list command */
6762 void route_vty_out_tmp(struct vty
*vty
, struct prefix
*p
, struct attr
*attr
,
6763 safi_t safi
, uint8_t use_json
, json_object
*json_ar
)
6765 json_object
*json_status
= NULL
;
6766 json_object
*json_net
= NULL
;
6768 /* Route status display. */
6770 json_status
= json_object_new_object();
6771 json_net
= json_object_new_object();
6778 /* print prefix and mask */
6780 json_object_string_add(
6781 json_net
, "addrPrefix",
6782 inet_ntop(p
->family
, &p
->u
.prefix
, buff
, BUFSIZ
));
6784 route_vty_out_route(p
, vty
, NULL
);
6786 /* Print attribute */
6789 if (p
->family
== AF_INET
6790 && (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
6791 || safi
== SAFI_EVPN
6792 || !BGP_ATTR_NEXTHOP_AFI_IP6(attr
))) {
6793 if (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
6794 || safi
== SAFI_EVPN
)
6795 json_object_string_add(
6796 json_net
, "nextHop",
6798 attr
->mp_nexthop_global_in
));
6800 json_object_string_add(
6801 json_net
, "nextHop",
6802 inet_ntoa(attr
->nexthop
));
6803 } else if (p
->family
== AF_INET6
6804 || BGP_ATTR_NEXTHOP_AFI_IP6(attr
)) {
6807 json_object_string_add(
6808 json_net
, "netHopGloabal",
6810 &attr
->mp_nexthop_global
, buf
,
6815 & ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
))
6816 json_object_int_add(json_net
, "metric",
6819 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
))
6820 json_object_int_add(json_net
, "localPref",
6823 json_object_int_add(json_net
, "weight", attr
->weight
);
6827 json_object_string_add(json_net
, "asPath",
6831 json_object_string_add(json_net
, "bgpOriginCode",
6832 bgp_origin_str
[attr
->origin
]);
6834 if (p
->family
== AF_INET
6835 && (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
6836 || safi
== SAFI_EVPN
6837 || !BGP_ATTR_NEXTHOP_AFI_IP6(attr
))) {
6838 if (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
6839 || safi
== SAFI_EVPN
)
6840 vty_out(vty
, "%-16s",
6842 attr
->mp_nexthop_global_in
));
6844 vty_out(vty
, "%-16s",
6845 inet_ntoa(attr
->nexthop
));
6846 } else if (p
->family
== AF_INET6
6847 || BGP_ATTR_NEXTHOP_AFI_IP6(attr
)) {
6854 &attr
->mp_nexthop_global
, buf
,
6858 vty_out(vty
, "\n%*s", 36, " ");
6860 vty_out(vty
, "%*s", len
, " ");
6863 & ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
))
6864 vty_out(vty
, "%10u", attr
->med
);
6868 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
))
6869 vty_out(vty
, "%7u", attr
->local_pref
);
6873 vty_out(vty
, "%7u ", attr
->weight
);
6877 aspath_print_vty(vty
, "%s", attr
->aspath
, " ");
6880 vty_out(vty
, "%s", bgp_origin_str
[attr
->origin
]);
6884 json_object_boolean_true_add(json_status
, "*");
6885 json_object_boolean_true_add(json_status
, ">");
6886 json_object_object_add(json_net
, "appliedStatusSymbols",
6888 char buf_cut
[BUFSIZ
];
6889 json_object_object_add(
6891 inet_ntop(p
->family
, &p
->u
.prefix
, buf_cut
, BUFSIZ
),
6897 void route_vty_out_tag(struct vty
*vty
, struct prefix
*p
,
6898 struct bgp_info
*binfo
, int display
, safi_t safi
,
6901 json_object
*json_out
= NULL
;
6903 mpls_label_t label
= MPLS_INVALID_LABEL
;
6909 json_out
= json_object_new_object();
6911 /* short status lead text */
6912 route_vty_short_status_out(vty
, binfo
, json_out
);
6914 /* print prefix and mask */
6917 route_vty_out_route(p
, vty
, NULL
);
6919 vty_out(vty
, "%*s", 17, " ");
6922 /* Print attribute */
6925 if (((p
->family
== AF_INET
)
6926 && ((safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
)))
6927 || (safi
== SAFI_EVPN
&& !BGP_ATTR_NEXTHOP_AFI_IP6(attr
))
6928 || (!BGP_ATTR_NEXTHOP_AFI_IP6(attr
))) {
6929 if (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
6930 || safi
== SAFI_EVPN
) {
6932 json_object_string_add(
6933 json_out
, "mpNexthopGlobalIn",
6935 attr
->mp_nexthop_global_in
));
6937 vty_out(vty
, "%-16s",
6939 attr
->mp_nexthop_global_in
));
6942 json_object_string_add(
6943 json_out
, "nexthop",
6944 inet_ntoa(attr
->nexthop
));
6946 vty_out(vty
, "%-16s",
6947 inet_ntoa(attr
->nexthop
));
6949 } else if (((p
->family
== AF_INET6
)
6950 && ((safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
)))
6951 || (safi
== SAFI_EVPN
6952 && BGP_ATTR_NEXTHOP_AFI_IP6(attr
))
6953 || (BGP_ATTR_NEXTHOP_AFI_IP6(attr
))) {
6957 if (attr
->mp_nexthop_len
6958 == BGP_ATTR_NHLEN_IPV6_GLOBAL
) {
6960 json_object_string_add(
6961 json_out
, "mpNexthopGlobalIn",
6964 &attr
->mp_nexthop_global
,
6965 buf_a
, sizeof(buf_a
)));
6970 &attr
->mp_nexthop_global
,
6971 buf_a
, sizeof(buf_a
)));
6972 } else if (attr
->mp_nexthop_len
6973 == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL
) {
6976 &attr
->mp_nexthop_global
,
6977 buf_a
, sizeof(buf_a
));
6979 &attr
->mp_nexthop_local
,
6980 buf_b
, sizeof(buf_b
));
6981 sprintf(buf_c
, "%s(%s)", buf_a
, buf_b
);
6982 json_object_string_add(
6984 "mpNexthopGlobalLocal", buf_c
);
6986 vty_out(vty
, "%s(%s)",
6989 &attr
->mp_nexthop_global
,
6990 buf_a
, sizeof(buf_a
)),
6993 &attr
->mp_nexthop_local
,
6994 buf_b
, sizeof(buf_b
)));
6999 label
= decode_label(&binfo
->extra
->label
[0]);
7001 if (bgp_is_valid_label(&label
)) {
7003 json_object_int_add(json_out
, "notag", label
);
7004 json_object_array_add(json
, json_out
);
7006 vty_out(vty
, "notag/%d", label
);
7012 void route_vty_out_overlay(struct vty
*vty
, struct prefix
*p
,
7013 struct bgp_info
*binfo
, int display
,
7014 json_object
*json_paths
)
7018 json_object
*json_path
= NULL
;
7021 json_path
= json_object_new_object();
7026 /* short status lead text */
7027 route_vty_short_status_out(vty
, binfo
, json_path
);
7029 /* print prefix and mask */
7031 route_vty_out_route(p
, vty
, NULL
);
7033 vty_out(vty
, "%*s", 17, " ");
7035 /* Print attribute */
7039 int af
= NEXTHOP_FAMILY(attr
->mp_nexthop_len
);
7043 vty_out(vty
, "%-16s",
7044 inet_ntop(af
, &attr
->mp_nexthop_global_in
, buf
,
7048 vty_out(vty
, "%s(%s)",
7049 inet_ntop(af
, &attr
->mp_nexthop_global
, buf
,
7051 inet_ntop(af
, &attr
->mp_nexthop_local
, buf1
,
7058 char *str
= esi2str(&(attr
->evpn_overlay
.eth_s_id
));
7060 vty_out(vty
, "%s", str
);
7061 XFREE(MTYPE_TMP
, str
);
7063 if (is_evpn_prefix_ipaddr_v4((struct prefix_evpn
*)p
)) {
7065 inet_ntoa(attr
->evpn_overlay
.gw_ip
.ipv4
));
7066 } else if (is_evpn_prefix_ipaddr_v6((struct prefix_evpn
*)p
)) {
7069 &(attr
->evpn_overlay
.gw_ip
.ipv6
), buf
,
7072 if (attr
->ecommunity
) {
7074 struct ecommunity_val
*routermac
= ecommunity_lookup(
7075 attr
->ecommunity
, ECOMMUNITY_ENCODE_EVPN
,
7076 ECOMMUNITY_EVPN_SUBTYPE_ROUTERMAC
);
7078 mac
= ecom_mac2str((char *)routermac
->val
);
7080 vty_out(vty
, "/%s", (char *)mac
);
7081 XFREE(MTYPE_TMP
, mac
);
7089 /* dampening route */
7090 static void damp_route_vty_out(struct vty
*vty
, struct prefix
*p
,
7091 struct bgp_info
*binfo
, int display
, safi_t safi
,
7092 uint8_t use_json
, json_object
*json
)
7096 char timebuf
[BGP_UPTIME_LEN
];
7098 /* short status lead text */
7099 route_vty_short_status_out(vty
, binfo
, json
);
7101 /* print prefix and mask */
7104 route_vty_out_route(p
, vty
, NULL
);
7106 vty_out(vty
, "%*s", 17, " ");
7109 len
= vty_out(vty
, "%s", binfo
->peer
->host
);
7113 vty_out(vty
, "\n%*s", 34, " ");
7116 json_object_int_add(json
, "peerHost", len
);
7118 vty_out(vty
, "%*s", len
, " ");
7122 bgp_damp_reuse_time_vty(vty
, binfo
, timebuf
, BGP_UPTIME_LEN
,
7125 vty_out(vty
, "%s ", bgp_damp_reuse_time_vty(vty
, binfo
, timebuf
,
7129 /* Print attribute */
7135 json_object_string_add(json
, "asPath",
7138 aspath_print_vty(vty
, "%s", attr
->aspath
, " ");
7143 json_object_string_add(json
, "origin",
7144 bgp_origin_str
[attr
->origin
]);
7146 vty_out(vty
, "%s", bgp_origin_str
[attr
->origin
]);
7153 static void flap_route_vty_out(struct vty
*vty
, struct prefix
*p
,
7154 struct bgp_info
*binfo
, int display
, safi_t safi
,
7155 uint8_t use_json
, json_object
*json
)
7158 struct bgp_damp_info
*bdi
;
7159 char timebuf
[BGP_UPTIME_LEN
];
7165 bdi
= binfo
->extra
->damp_info
;
7167 /* short status lead text */
7168 route_vty_short_status_out(vty
, binfo
, json
);
7170 /* print prefix and mask */
7173 route_vty_out_route(p
, vty
, NULL
);
7175 vty_out(vty
, "%*s", 17, " ");
7178 len
= vty_out(vty
, "%s", binfo
->peer
->host
);
7182 vty_out(vty
, "\n%*s", 33, " ");
7185 json_object_int_add(json
, "peerHost", len
);
7187 vty_out(vty
, "%*s", len
, " ");
7190 len
= vty_out(vty
, "%d", bdi
->flap
);
7197 json_object_int_add(json
, "bdiFlap", len
);
7199 vty_out(vty
, "%*s", len
, " ");
7203 peer_uptime(bdi
->start_time
, timebuf
, BGP_UPTIME_LEN
, use_json
,
7206 vty_out(vty
, "%s ", peer_uptime(bdi
->start_time
, timebuf
,
7207 BGP_UPTIME_LEN
, 0, NULL
));
7209 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_DAMPED
)
7210 && !CHECK_FLAG(binfo
->flags
, BGP_INFO_HISTORY
)) {
7212 bgp_damp_reuse_time_vty(vty
, binfo
, timebuf
,
7213 BGP_UPTIME_LEN
, use_json
, json
);
7216 bgp_damp_reuse_time_vty(vty
, binfo
, timebuf
,
7221 vty_out(vty
, "%*s ", 8, " ");
7224 /* Print attribute */
7230 json_object_string_add(json
, "asPath",
7233 aspath_print_vty(vty
, "%s", attr
->aspath
, " ");
7238 json_object_string_add(json
, "origin",
7239 bgp_origin_str
[attr
->origin
]);
7241 vty_out(vty
, "%s", bgp_origin_str
[attr
->origin
]);
7247 static void route_vty_out_advertised_to(struct vty
*vty
, struct peer
*peer
,
7248 int *first
, const char *header
,
7249 json_object
*json_adv_to
)
7251 char buf1
[INET6_ADDRSTRLEN
];
7252 json_object
*json_peer
= NULL
;
7255 /* 'advertised-to' is a dictionary of peers we have advertised
7257 * prefix too. The key is the peer's IP or swpX, the value is
7259 * hostname if we know it and "" if not.
7261 json_peer
= json_object_new_object();
7264 json_object_string_add(json_peer
, "hostname",
7268 json_object_object_add(json_adv_to
, peer
->conf_if
,
7271 json_object_object_add(
7273 sockunion2str(&peer
->su
, buf1
, SU_ADDRSTRLEN
),
7277 vty_out(vty
, "%s", header
);
7282 && bgp_flag_check(peer
->bgp
, BGP_FLAG_SHOW_HOSTNAME
)) {
7284 vty_out(vty
, " %s(%s)", peer
->hostname
,
7287 vty_out(vty
, " %s(%s)", peer
->hostname
,
7288 sockunion2str(&peer
->su
, buf1
,
7292 vty_out(vty
, " %s", peer
->conf_if
);
7295 sockunion2str(&peer
->su
, buf1
,
7301 void route_vty_out_detail(struct vty
*vty
, struct bgp
*bgp
, struct prefix
*p
,
7302 struct bgp_info
*binfo
, afi_t afi
, safi_t safi
,
7303 json_object
*json_paths
)
7305 char buf
[INET6_ADDRSTRLEN
];
7307 char buf2
[EVPN_ROUTE_STRLEN
];
7309 int sockunion_vty_out(struct vty
*, union sockunion
*);
7311 json_object
*json_bestpath
= NULL
;
7312 json_object
*json_cluster_list
= NULL
;
7313 json_object
*json_cluster_list_list
= NULL
;
7314 json_object
*json_ext_community
= NULL
;
7315 json_object
*json_last_update
= NULL
;
7316 json_object
*json_pmsi
= NULL
;
7317 json_object
*json_nexthop_global
= NULL
;
7318 json_object
*json_nexthop_ll
= NULL
;
7319 json_object
*json_nexthops
= NULL
;
7320 json_object
*json_path
= NULL
;
7321 json_object
*json_peer
= NULL
;
7322 json_object
*json_string
= NULL
;
7323 json_object
*json_adv_to
= NULL
;
7325 struct listnode
*node
, *nnode
;
7327 int addpath_capable
;
7329 unsigned int first_as
;
7330 bool nexthop_self
= CHECK_FLAG(binfo
->flags
, BGP_INFO_ANNC_NH_SELF
)
7335 json_path
= json_object_new_object();
7336 json_peer
= json_object_new_object();
7337 json_nexthop_global
= json_object_new_object();
7340 if (!json_paths
&& safi
== SAFI_EVPN
) {
7343 bgp_evpn_route2str((struct prefix_evpn
*)p
, buf2
, sizeof(buf2
));
7344 vty_out(vty
, " Route %s", buf2
);
7346 if (binfo
->extra
&& binfo
->extra
->num_labels
) {
7347 bgp_evpn_label2str(binfo
->extra
->label
,
7348 binfo
->extra
->num_labels
, tag_buf
,
7350 vty_out(vty
, " VNI %s", tag_buf
);
7353 if (binfo
->extra
&& binfo
->extra
->parent
) {
7354 struct bgp_info
*parent_ri
;
7355 struct bgp_node
*rn
, *prn
;
7357 parent_ri
= (struct bgp_info
*)binfo
->extra
->parent
;
7358 rn
= parent_ri
->net
;
7359 if (rn
&& rn
->prn
) {
7361 vty_out(vty
, " Imported from %s:%s\n",
7363 (struct prefix_rd
*)&prn
->p
,
7364 buf1
, sizeof(buf1
)),
7373 /* Line1 display AS-path, Aggregator */
7376 if (!attr
->aspath
->json
)
7377 aspath_str_update(attr
->aspath
, true);
7378 json_object_lock(attr
->aspath
->json
);
7379 json_object_object_add(json_path
, "aspath",
7380 attr
->aspath
->json
);
7382 if (attr
->aspath
->segments
)
7383 aspath_print_vty(vty
, " %s",
7386 vty_out(vty
, " Local");
7390 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_REMOVED
)) {
7392 json_object_boolean_true_add(json_path
,
7395 vty_out(vty
, ", (removed)");
7398 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_STALE
)) {
7400 json_object_boolean_true_add(json_path
,
7403 vty_out(vty
, ", (stale)");
7406 if (CHECK_FLAG(attr
->flag
,
7407 ATTR_FLAG_BIT(BGP_ATTR_AGGREGATOR
))) {
7409 json_object_int_add(json_path
, "aggregatorAs",
7410 attr
->aggregator_as
);
7411 json_object_string_add(
7412 json_path
, "aggregatorId",
7413 inet_ntoa(attr
->aggregator_addr
));
7415 vty_out(vty
, ", (aggregated by %u %s)",
7416 attr
->aggregator_as
,
7417 inet_ntoa(attr
->aggregator_addr
));
7421 if (CHECK_FLAG(binfo
->peer
->af_flags
[afi
][safi
],
7422 PEER_FLAG_REFLECTOR_CLIENT
)) {
7424 json_object_boolean_true_add(
7425 json_path
, "rxedFromRrClient");
7427 vty_out(vty
, ", (Received from a RR-client)");
7430 if (CHECK_FLAG(binfo
->peer
->af_flags
[afi
][safi
],
7431 PEER_FLAG_RSERVER_CLIENT
)) {
7433 json_object_boolean_true_add(
7434 json_path
, "rxedFromRsClient");
7436 vty_out(vty
, ", (Received from a RS-client)");
7439 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_HISTORY
)) {
7441 json_object_boolean_true_add(
7442 json_path
, "dampeningHistoryEntry");
7444 vty_out(vty
, ", (history entry)");
7445 } else if (CHECK_FLAG(binfo
->flags
, BGP_INFO_DAMPED
)) {
7447 json_object_boolean_true_add(
7448 json_path
, "dampeningSuppressed");
7450 vty_out(vty
, ", (suppressed due to dampening)");
7456 /* Line2 display Next-hop, Neighbor, Router-id */
7457 /* Display the nexthop */
7458 if ((p
->family
== AF_INET
|| p
->family
== AF_ETHERNET
7459 || p
->family
== AF_EVPN
)
7460 && (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
7461 || safi
== SAFI_EVPN
7462 || !BGP_ATTR_NEXTHOP_AFI_IP6(attr
))) {
7463 if (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
7464 || safi
== SAFI_EVPN
) {
7466 json_object_string_add(
7467 json_nexthop_global
, "ip",
7469 attr
->mp_nexthop_global_in
));
7473 attr
->mp_nexthop_global_in
));
7476 json_object_string_add(
7477 json_nexthop_global
, "ip",
7478 inet_ntoa(attr
->nexthop
));
7481 inet_ntoa(attr
->nexthop
));
7485 json_object_string_add(json_nexthop_global
,
7489 json_object_string_add(
7490 json_nexthop_global
, "ip",
7492 &attr
->mp_nexthop_global
, buf
,
7494 json_object_string_add(json_nexthop_global
,
7496 json_object_string_add(json_nexthop_global
,
7501 &attr
->mp_nexthop_global
, buf
,
7506 /* Display the IGP cost or 'inaccessible' */
7507 if (!CHECK_FLAG(binfo
->flags
, BGP_INFO_VALID
)) {
7509 json_object_boolean_false_add(
7510 json_nexthop_global
, "accessible");
7512 vty_out(vty
, " (inaccessible)");
7514 if (binfo
->extra
&& binfo
->extra
->igpmetric
) {
7516 json_object_int_add(
7517 json_nexthop_global
, "metric",
7518 binfo
->extra
->igpmetric
);
7520 vty_out(vty
, " (metric %u)",
7521 binfo
->extra
->igpmetric
);
7524 /* IGP cost is 0, display this only for json */
7527 json_object_int_add(json_nexthop_global
,
7532 json_object_boolean_true_add(
7533 json_nexthop_global
, "accessible");
7536 /* Display peer "from" output */
7537 /* This path was originated locally */
7538 if (binfo
->peer
== bgp
->peer_self
) {
7540 if (safi
== SAFI_EVPN
7541 || (p
->family
== AF_INET
7542 && !BGP_ATTR_NEXTHOP_AFI_IP6(attr
))) {
7544 json_object_string_add(
7545 json_peer
, "peerId", "0.0.0.0");
7547 vty_out(vty
, " from 0.0.0.0 ");
7550 json_object_string_add(json_peer
,
7553 vty_out(vty
, " from :: ");
7557 json_object_string_add(
7558 json_peer
, "routerId",
7559 inet_ntoa(bgp
->router_id
));
7561 vty_out(vty
, "(%s)", inet_ntoa(bgp
->router_id
));
7564 /* We RXed this path from one of our peers */
7568 json_object_string_add(
7569 json_peer
, "peerId",
7570 sockunion2str(&binfo
->peer
->su
, buf
,
7572 json_object_string_add(
7573 json_peer
, "routerId",
7575 &binfo
->peer
->remote_id
, buf1
,
7578 if (binfo
->peer
->hostname
)
7579 json_object_string_add(
7580 json_peer
, "hostname",
7581 binfo
->peer
->hostname
);
7583 if (binfo
->peer
->domainname
)
7584 json_object_string_add(
7585 json_peer
, "domainname",
7586 binfo
->peer
->domainname
);
7588 if (binfo
->peer
->conf_if
)
7589 json_object_string_add(
7590 json_peer
, "interface",
7591 binfo
->peer
->conf_if
);
7593 if (binfo
->peer
->conf_if
) {
7594 if (binfo
->peer
->hostname
7597 BGP_FLAG_SHOW_HOSTNAME
))
7598 vty_out(vty
, " from %s(%s)",
7599 binfo
->peer
->hostname
,
7600 binfo
->peer
->conf_if
);
7602 vty_out(vty
, " from %s",
7603 binfo
->peer
->conf_if
);
7605 if (binfo
->peer
->hostname
7608 BGP_FLAG_SHOW_HOSTNAME
))
7609 vty_out(vty
, " from %s(%s)",
7610 binfo
->peer
->hostname
,
7613 vty_out(vty
, " from %s",
7622 & ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID
))
7623 vty_out(vty
, " (%s)",
7624 inet_ntoa(attr
->originator_id
));
7626 vty_out(vty
, " (%s)",
7629 &binfo
->peer
->remote_id
,
7630 buf1
, sizeof(buf1
)));
7635 * Note when vrfid of nexthop is different from that of prefix
7637 if (binfo
->extra
&& binfo
->extra
->bgp_orig
) {
7638 vrf_id_t nexthop_vrfid
= binfo
->extra
->bgp_orig
->vrf_id
;
7643 if (binfo
->extra
->bgp_orig
->inst_type
==
7644 BGP_INSTANCE_TYPE_DEFAULT
)
7648 vn
= binfo
->extra
->bgp_orig
->name
;
7650 json_object_string_add(json_path
, "nhVrfName",
7653 if (nexthop_vrfid
== VRF_UNKNOWN
) {
7654 json_object_int_add(json_path
,
7657 json_object_int_add(json_path
,
7658 "nhVrfId", (int)nexthop_vrfid
);
7661 if (nexthop_vrfid
== VRF_UNKNOWN
)
7662 vty_out(vty
, " vrf ?");
7664 vty_out(vty
, " vrf %u", nexthop_vrfid
);
7670 json_object_boolean_true_add(json_path
,
7671 "announceNexthopSelf");
7673 vty_out(vty
, " announce-nh-self");
7680 /* display the link-local nexthop */
7681 if (attr
->mp_nexthop_len
== BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL
) {
7683 json_nexthop_ll
= json_object_new_object();
7684 json_object_string_add(
7685 json_nexthop_ll
, "ip",
7687 &attr
->mp_nexthop_local
, buf
,
7689 json_object_string_add(json_nexthop_ll
, "afi",
7691 json_object_string_add(json_nexthop_ll
, "scope",
7694 json_object_boolean_true_add(json_nexthop_ll
,
7697 if (!attr
->mp_nexthop_prefer_global
)
7698 json_object_boolean_true_add(
7699 json_nexthop_ll
, "used");
7701 json_object_boolean_true_add(
7702 json_nexthop_global
, "used");
7704 vty_out(vty
, " (%s) %s\n",
7706 &attr
->mp_nexthop_local
, buf
,
7708 attr
->mp_nexthop_prefer_global
7713 /* If we do not have a link-local nexthop then we must flag the
7717 json_object_boolean_true_add(
7718 json_nexthop_global
, "used");
7721 /* Line 3 display Origin, Med, Locpref, Weight, Tag, valid,
7722 * Int/Ext/Local, Atomic, best */
7724 json_object_string_add(
7725 json_path
, "origin",
7726 bgp_origin_long_str
[attr
->origin
]);
7728 vty_out(vty
, " Origin %s",
7729 bgp_origin_long_str
[attr
->origin
]);
7731 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
)) {
7733 json_object_int_add(json_path
, "med",
7736 vty_out(vty
, ", metric %u", attr
->med
);
7739 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
)) {
7741 json_object_int_add(json_path
, "localpref",
7744 vty_out(vty
, ", localpref %u",
7748 if (attr
->weight
!= 0) {
7750 json_object_int_add(json_path
, "weight",
7753 vty_out(vty
, ", weight %u", attr
->weight
);
7756 if (attr
->tag
!= 0) {
7758 json_object_int_add(json_path
, "tag",
7761 vty_out(vty
, ", tag %" ROUTE_TAG_PRI
,
7765 if (!CHECK_FLAG(binfo
->flags
, BGP_INFO_VALID
)) {
7767 json_object_boolean_false_add(json_path
,
7770 vty_out(vty
, ", invalid");
7771 } else if (!CHECK_FLAG(binfo
->flags
, BGP_INFO_HISTORY
)) {
7773 json_object_boolean_true_add(json_path
,
7776 vty_out(vty
, ", valid");
7779 if (binfo
->peer
!= bgp
->peer_self
) {
7780 if (binfo
->peer
->as
== binfo
->peer
->local_as
) {
7781 if (CHECK_FLAG(bgp
->config
,
7782 BGP_CONFIG_CONFEDERATION
)) {
7784 json_object_string_add(
7789 ", confed-internal");
7792 json_object_string_add(
7796 vty_out(vty
, ", internal");
7799 if (bgp_confederation_peers_check(
7800 bgp
, binfo
->peer
->as
)) {
7802 json_object_string_add(
7807 ", confed-external");
7810 json_object_string_add(
7814 vty_out(vty
, ", external");
7817 } else if (binfo
->sub_type
== BGP_ROUTE_AGGREGATE
) {
7819 json_object_boolean_true_add(json_path
,
7821 json_object_boolean_true_add(json_path
,
7824 vty_out(vty
, ", aggregated, local");
7826 } else if (binfo
->type
!= ZEBRA_ROUTE_BGP
) {
7828 json_object_boolean_true_add(json_path
,
7831 vty_out(vty
, ", sourced");
7834 json_object_boolean_true_add(json_path
,
7836 json_object_boolean_true_add(json_path
,
7839 vty_out(vty
, ", sourced, local");
7843 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_ATOMIC_AGGREGATE
)) {
7845 json_object_boolean_true_add(json_path
,
7848 vty_out(vty
, ", atomic-aggregate");
7851 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_MULTIPATH
)
7852 || (CHECK_FLAG(binfo
->flags
, BGP_INFO_SELECTED
)
7853 && bgp_info_mpath_count(binfo
))) {
7855 json_object_boolean_true_add(json_path
,
7858 vty_out(vty
, ", multipath");
7861 // Mark the bestpath(s)
7862 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_DMED_SELECTED
)) {
7863 first_as
= aspath_get_first_as(attr
->aspath
);
7868 json_object_new_object();
7869 json_object_int_add(json_bestpath
,
7870 "bestpathFromAs", first_as
);
7873 vty_out(vty
, ", bestpath-from-AS %u",
7877 ", bestpath-from-AS Local");
7881 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_SELECTED
)) {
7885 json_object_new_object();
7886 json_object_boolean_true_add(json_bestpath
,
7889 vty_out(vty
, ", best");
7893 json_object_object_add(json_path
, "bestpath",
7899 /* Line 4 display Community */
7900 if (attr
->community
) {
7902 if (!attr
->community
->json
)
7903 community_str(attr
->community
, true);
7904 json_object_lock(attr
->community
->json
);
7905 json_object_object_add(json_path
, "community",
7906 attr
->community
->json
);
7908 vty_out(vty
, " Community: %s\n",
7909 attr
->community
->str
);
7913 /* Line 5 display Extended-community */
7914 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_EXT_COMMUNITIES
)) {
7916 json_ext_community
= json_object_new_object();
7917 json_object_string_add(json_ext_community
,
7919 attr
->ecommunity
->str
);
7920 json_object_object_add(json_path
,
7921 "extendedCommunity",
7922 json_ext_community
);
7924 vty_out(vty
, " Extended Community: %s\n",
7925 attr
->ecommunity
->str
);
7929 /* Line 6 display Large community */
7930 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_LARGE_COMMUNITIES
)) {
7932 if (!attr
->lcommunity
->json
)
7933 lcommunity_str(attr
->lcommunity
, true);
7934 json_object_lock(attr
->lcommunity
->json
);
7935 json_object_object_add(json_path
,
7937 attr
->lcommunity
->json
);
7939 vty_out(vty
, " Large Community: %s\n",
7940 attr
->lcommunity
->str
);
7944 /* Line 7 display Originator, Cluster-id */
7945 if ((attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID
))
7946 || (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_CLUSTER_LIST
))) {
7948 & ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID
)) {
7950 json_object_string_add(
7951 json_path
, "originatorId",
7952 inet_ntoa(attr
->originator_id
));
7954 vty_out(vty
, " Originator: %s",
7955 inet_ntoa(attr
->originator_id
));
7958 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_CLUSTER_LIST
)) {
7963 json_object_new_object();
7964 json_cluster_list_list
=
7965 json_object_new_array();
7968 i
< attr
->cluster
->length
/ 4;
7970 json_string
= json_object_new_string(
7974 json_object_array_add(
7975 json_cluster_list_list
,
7979 /* struct cluster_list does not have
7981 * aspath and community do. Add this
7984 json_object_string_add(json_cluster_list,
7985 "string", attr->cluster->str);
7987 json_object_object_add(
7988 json_cluster_list
, "list",
7989 json_cluster_list_list
);
7990 json_object_object_add(
7991 json_path
, "clusterList",
7994 vty_out(vty
, ", Cluster list: ");
7997 i
< attr
->cluster
->length
/ 4;
8011 if (binfo
->extra
&& binfo
->extra
->damp_info
)
8012 bgp_damp_info_vty(vty
, binfo
, json_path
);
8015 if (binfo
->extra
&& bgp_is_valid_label(&binfo
->extra
->label
[0])
8016 && safi
!= SAFI_EVPN
) {
8017 mpls_label_t label
=
8018 label_pton(&binfo
->extra
->label
[0]);
8020 json_object_int_add(json_path
, "remoteLabel",
8023 vty_out(vty
, " Remote label: %d\n", label
);
8027 if (attr
->label_index
!= BGP_INVALID_LABEL_INDEX
) {
8029 json_object_int_add(json_path
, "labelIndex",
8032 vty_out(vty
, " Label Index: %d\n",
8036 /* Line 8 display Addpath IDs */
8037 if (binfo
->addpath_rx_id
|| binfo
->addpath_tx_id
) {
8039 json_object_int_add(json_path
, "addpathRxId",
8040 binfo
->addpath_rx_id
);
8041 json_object_int_add(json_path
, "addpathTxId",
8042 binfo
->addpath_tx_id
);
8044 vty_out(vty
, " AddPath ID: RX %u, TX %u\n",
8045 binfo
->addpath_rx_id
,
8046 binfo
->addpath_tx_id
);
8050 /* If we used addpath to TX a non-bestpath we need to display
8051 * "Advertised to" on a path-by-path basis */
8052 if (bgp
->addpath_tx_used
[afi
][safi
]) {
8055 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
8057 bgp_addpath_encode_tx(peer
, afi
, safi
);
8058 has_adj
= bgp_adj_out_lookup(
8059 peer
, binfo
->net
, binfo
->addpath_tx_id
);
8061 if ((addpath_capable
&& has_adj
)
8062 || (!addpath_capable
&& has_adj
8063 && CHECK_FLAG(binfo
->flags
,
8064 BGP_INFO_SELECTED
))) {
8065 if (json_path
&& !json_adv_to
)
8067 json_object_new_object();
8069 route_vty_out_advertised_to(
8078 json_object_object_add(json_path
,
8089 /* Line 9 display Uptime */
8090 tbuf
= time(NULL
) - (bgp_clock() - binfo
->uptime
);
8092 json_last_update
= json_object_new_object();
8093 json_object_int_add(json_last_update
, "epoch", tbuf
);
8094 json_object_string_add(json_last_update
, "string",
8096 json_object_object_add(json_path
, "lastUpdate",
8099 vty_out(vty
, " Last update: %s", ctime(&tbuf
));
8101 /* Line 10 display PMSI tunnel attribute, if present */
8102 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_PMSI_TUNNEL
)) {
8103 const char *str
= lookup_msg(bgp_pmsi_tnltype_str
,
8104 attr
->pmsi_tnl_type
,
8105 PMSI_TNLTYPE_STR_DEFAULT
);
8108 json_pmsi
= json_object_new_object();
8109 json_object_string_add(json_pmsi
,
8111 json_object_object_add(json_path
, "pmsi",
8114 vty_out(vty
, " PMSI Tunnel Type: %s\n",
8120 /* We've constructed the json object for this path, add it to the json
8124 if (json_nexthop_global
|| json_nexthop_ll
) {
8125 json_nexthops
= json_object_new_array();
8127 if (json_nexthop_global
)
8128 json_object_array_add(json_nexthops
,
8129 json_nexthop_global
);
8131 if (json_nexthop_ll
)
8132 json_object_array_add(json_nexthops
,
8135 json_object_object_add(json_path
, "nexthops",
8139 json_object_object_add(json_path
, "peer", json_peer
);
8140 json_object_array_add(json_paths
, json_path
);
8145 #define BGP_SHOW_HEADER_CSV "Flags, Network, Next Hop, Metric, LocPrf, Weight, Path"
8146 #define BGP_SHOW_DAMP_HEADER " Network From Reuse Path\n"
8147 #define BGP_SHOW_FLAP_HEADER " Network From Flaps Duration Reuse Path\n"
8149 static int bgp_show_prefix_list(struct vty
*vty
, struct bgp
*bgp
,
8150 const char *prefix_list_str
, afi_t afi
,
8151 safi_t safi
, enum bgp_show_type type
);
8152 static int bgp_show_filter_list(struct vty
*vty
, struct bgp
*bgp
,
8153 const char *filter
, afi_t afi
, safi_t safi
,
8154 enum bgp_show_type type
);
8155 static int bgp_show_route_map(struct vty
*vty
, struct bgp
*bgp
,
8156 const char *rmap_str
, afi_t afi
, safi_t safi
,
8157 enum bgp_show_type type
);
8158 static int bgp_show_community_list(struct vty
*vty
, struct bgp
*bgp
,
8159 const char *com
, int exact
, afi_t afi
,
8161 static int bgp_show_prefix_longer(struct vty
*vty
, struct bgp
*bgp
,
8162 const char *prefix
, afi_t afi
, safi_t safi
,
8163 enum bgp_show_type type
);
8164 static int bgp_show_regexp(struct vty
*vty
, struct bgp
*bgp
, const char *regstr
,
8165 afi_t afi
, safi_t safi
, enum bgp_show_type type
);
8166 static int bgp_show_community(struct vty
*vty
, struct bgp
*bgp
,
8167 const char *comstr
, int exact
, afi_t afi
,
8168 safi_t safi
, uint8_t use_json
);
8171 static int bgp_show_table(struct vty
*vty
, struct bgp
*bgp
, safi_t safi
,
8172 struct bgp_table
*table
, enum bgp_show_type type
,
8173 void *output_arg
, uint8_t use_json
, char *rd
,
8174 int is_last
, unsigned long *output_cum
,
8175 unsigned long *total_cum
,
8176 unsigned long *json_header_depth
)
8178 struct bgp_info
*ri
;
8179 struct bgp_node
*rn
;
8182 unsigned long output_count
= 0;
8183 unsigned long total_count
= 0;
8187 json_object
*json_paths
= NULL
;
8190 if (output_cum
&& *output_cum
!= 0)
8193 if (use_json
&& !*json_header_depth
) {
8195 "{\n \"vrfId\": %d,\n \"vrfName\": \"%s\",\n \"tableVersion\": %" PRId64
8196 ",\n \"routerId\": \"%s\",\n \"routes\": { ",
8197 bgp
->vrf_id
== VRF_UNKNOWN
? -1 : (int)bgp
->vrf_id
,
8198 bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
? "Default"
8200 table
->version
, inet_ntoa(bgp
->router_id
));
8201 *json_header_depth
= 2;
8203 vty_out(vty
, " \"routeDistinguishers\" : {");
8204 ++*json_header_depth
;
8208 if (use_json
&& rd
) {
8209 vty_out(vty
, " \"%s\" : { ", rd
);
8212 /* Start processing of routes. */
8213 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
)) {
8214 if (rn
->info
== NULL
)
8219 json_paths
= json_object_new_array();
8223 for (ri
= rn
->info
; ri
; ri
= ri
->next
) {
8225 if (type
== bgp_show_type_flap_statistics
8226 || type
== bgp_show_type_flap_neighbor
8227 || type
== bgp_show_type_dampend_paths
8228 || type
== bgp_show_type_damp_neighbor
) {
8229 if (!(ri
->extra
&& ri
->extra
->damp_info
))
8232 if (type
== bgp_show_type_regexp
) {
8233 regex_t
*regex
= output_arg
;
8235 if (bgp_regexec(regex
, ri
->attr
->aspath
)
8239 if (type
== bgp_show_type_prefix_list
) {
8240 struct prefix_list
*plist
= output_arg
;
8242 if (prefix_list_apply(plist
, &rn
->p
)
8246 if (type
== bgp_show_type_filter_list
) {
8247 struct as_list
*as_list
= output_arg
;
8249 if (as_list_apply(as_list
, ri
->attr
->aspath
)
8250 != AS_FILTER_PERMIT
)
8253 if (type
== bgp_show_type_route_map
) {
8254 struct route_map
*rmap
= output_arg
;
8255 struct bgp_info binfo
;
8256 struct attr dummy_attr
;
8259 bgp_attr_dup(&dummy_attr
, ri
->attr
);
8261 binfo
.peer
= ri
->peer
;
8262 binfo
.attr
= &dummy_attr
;
8264 ret
= route_map_apply(rmap
, &rn
->p
, RMAP_BGP
,
8266 if (ret
== RMAP_DENYMATCH
)
8269 if (type
== bgp_show_type_neighbor
8270 || type
== bgp_show_type_flap_neighbor
8271 || type
== bgp_show_type_damp_neighbor
) {
8272 union sockunion
*su
= output_arg
;
8274 if (ri
->peer
== NULL
8275 || ri
->peer
->su_remote
== NULL
8276 || !sockunion_same(ri
->peer
->su_remote
, su
))
8279 if (type
== bgp_show_type_cidr_only
) {
8280 uint32_t destination
;
8282 destination
= ntohl(rn
->p
.u
.prefix4
.s_addr
);
8283 if (IN_CLASSC(destination
)
8284 && rn
->p
.prefixlen
== 24)
8286 if (IN_CLASSB(destination
)
8287 && rn
->p
.prefixlen
== 16)
8289 if (IN_CLASSA(destination
)
8290 && rn
->p
.prefixlen
== 8)
8293 if (type
== bgp_show_type_prefix_longer
) {
8294 struct prefix
*p
= output_arg
;
8296 if (!prefix_match(p
, &rn
->p
))
8299 if (type
== bgp_show_type_community_all
) {
8300 if (!ri
->attr
->community
)
8303 if (type
== bgp_show_type_community
) {
8304 struct community
*com
= output_arg
;
8306 if (!ri
->attr
->community
8307 || !community_match(ri
->attr
->community
,
8311 if (type
== bgp_show_type_community_exact
) {
8312 struct community
*com
= output_arg
;
8314 if (!ri
->attr
->community
8315 || !community_cmp(ri
->attr
->community
, com
))
8318 if (type
== bgp_show_type_community_list
) {
8319 struct community_list
*list
= output_arg
;
8321 if (!community_list_match(ri
->attr
->community
,
8325 if (type
== bgp_show_type_community_list_exact
) {
8326 struct community_list
*list
= output_arg
;
8328 if (!community_list_exact_match(
8329 ri
->attr
->community
, list
))
8332 if (type
== bgp_show_type_lcommunity
) {
8333 struct lcommunity
*lcom
= output_arg
;
8335 if (!ri
->attr
->lcommunity
8336 || !lcommunity_match(ri
->attr
->lcommunity
,
8340 if (type
== bgp_show_type_lcommunity_list
) {
8341 struct community_list
*list
= output_arg
;
8343 if (!lcommunity_list_match(ri
->attr
->lcommunity
,
8347 if (type
== bgp_show_type_lcommunity_all
) {
8348 if (!ri
->attr
->lcommunity
)
8351 if (type
== bgp_show_type_dampend_paths
8352 || type
== bgp_show_type_damp_neighbor
) {
8353 if (!CHECK_FLAG(ri
->flags
, BGP_INFO_DAMPED
)
8354 || CHECK_FLAG(ri
->flags
, BGP_INFO_HISTORY
))
8358 if (!use_json
&& header
) {
8359 vty_out(vty
, "BGP table version is %" PRIu64
8360 ", local router ID is %s, vrf id ",
8362 inet_ntoa(bgp
->router_id
));
8363 if (bgp
->vrf_id
== VRF_UNKNOWN
)
8364 vty_out(vty
, "%s", VRFID_NONE_STR
);
8366 vty_out(vty
, "%u", bgp
->vrf_id
);
8368 vty_out(vty
, BGP_SHOW_SCODE_HEADER
);
8369 vty_out(vty
, BGP_SHOW_NCODE_HEADER
);
8370 vty_out(vty
, BGP_SHOW_OCODE_HEADER
);
8371 if (type
== bgp_show_type_dampend_paths
8372 || type
== bgp_show_type_damp_neighbor
)
8373 vty_out(vty
, BGP_SHOW_DAMP_HEADER
);
8374 else if (type
== bgp_show_type_flap_statistics
8375 || type
== bgp_show_type_flap_neighbor
)
8376 vty_out(vty
, BGP_SHOW_FLAP_HEADER
);
8378 vty_out(vty
, BGP_SHOW_HEADER
);
8381 if (rd
!= NULL
&& !display
&& !output_count
) {
8384 "Route Distinguisher: %s\n",
8387 if (type
== bgp_show_type_dampend_paths
8388 || type
== bgp_show_type_damp_neighbor
)
8389 damp_route_vty_out(vty
, &rn
->p
, ri
, display
,
8390 safi
, use_json
, json_paths
);
8391 else if (type
== bgp_show_type_flap_statistics
8392 || type
== bgp_show_type_flap_neighbor
)
8393 flap_route_vty_out(vty
, &rn
->p
, ri
, display
,
8394 safi
, use_json
, json_paths
);
8396 route_vty_out(vty
, &rn
->p
, ri
, display
, safi
,
8407 sprintf(buf2
, "%s/%d",
8408 inet_ntop(p
->family
, &p
->u
.prefix
, buf
, BUFSIZ
),
8411 vty_out(vty
, "\"%s\": ", buf2
);
8413 vty_out(vty
, ",\"%s\": ", buf2
);
8416 json_object_to_json_string(json_paths
));
8417 json_object_free(json_paths
);
8424 output_count
+= *output_cum
;
8425 *output_cum
= output_count
;
8428 total_count
+= *total_cum
;
8429 *total_cum
= total_count
;
8433 vty_out(vty
, " }%s ", (is_last
? "" : ","));
8437 for (i
= 0; i
< *json_header_depth
; ++i
)
8438 vty_out(vty
, " } ");
8442 /* No route is displayed */
8443 if (output_count
== 0) {
8444 if (type
== bgp_show_type_normal
)
8446 "No BGP prefixes displayed, %ld exist\n",
8450 "\nDisplayed %ld routes and %ld total paths\n",
8451 output_count
, total_count
);
8458 int bgp_show_table_rd(struct vty
*vty
, struct bgp
*bgp
, safi_t safi
,
8459 struct bgp_table
*table
, struct prefix_rd
*prd_match
,
8460 enum bgp_show_type type
, void *output_arg
,
8463 struct bgp_node
*rn
, *next
;
8464 unsigned long output_cum
= 0;
8465 unsigned long total_cum
= 0;
8466 unsigned long json_header_depth
= 0;
8469 show_msg
= (!use_json
&& type
== bgp_show_type_normal
);
8471 for (rn
= bgp_table_top(table
); rn
; rn
= next
) {
8472 next
= bgp_route_next(rn
);
8473 if (prd_match
&& memcmp(rn
->p
.u
.val
, prd_match
->val
, 8) != 0)
8475 if (rn
->info
!= NULL
) {
8476 struct prefix_rd prd
;
8477 char rd
[RD_ADDRSTRLEN
];
8479 memcpy(&prd
, &(rn
->p
), sizeof(struct prefix_rd
));
8480 prefix_rd2str(&prd
, rd
, sizeof(rd
));
8481 bgp_show_table(vty
, bgp
, safi
, rn
->info
, type
,
8482 output_arg
, use_json
, rd
, next
== NULL
,
8483 &output_cum
, &total_cum
,
8484 &json_header_depth
);
8490 if (output_cum
== 0)
8491 vty_out(vty
, "No BGP prefixes displayed, %ld exist\n",
8495 "\nDisplayed %ld routes and %ld total paths\n",
8496 output_cum
, total_cum
);
8500 static int bgp_show(struct vty
*vty
, struct bgp
*bgp
, afi_t afi
, safi_t safi
,
8501 enum bgp_show_type type
, void *output_arg
, uint8_t use_json
)
8503 struct bgp_table
*table
;
8504 unsigned long json_header_depth
= 0;
8507 bgp
= bgp_get_default();
8512 vty_out(vty
, "No BGP process is configured\n");
8514 vty_out(vty
, "{}\n");
8518 table
= bgp
->rib
[afi
][safi
];
8519 /* use MPLS and ENCAP specific shows until they are merged */
8520 if (safi
== SAFI_MPLS_VPN
) {
8521 return bgp_show_table_rd(vty
, bgp
, safi
, table
, NULL
, type
,
8522 output_arg
, use_json
);
8525 if (safi
== SAFI_FLOWSPEC
&& type
== bgp_show_type_detail
) {
8526 return bgp_show_table_flowspec(vty
, bgp
, afi
, table
, type
,
8527 output_arg
, use_json
,
8530 /* labeled-unicast routes live in the unicast table */
8531 else if (safi
== SAFI_LABELED_UNICAST
)
8532 safi
= SAFI_UNICAST
;
8534 return bgp_show_table(vty
, bgp
, safi
, table
, type
, output_arg
, use_json
,
8535 NULL
, 1, NULL
, NULL
, &json_header_depth
);
8538 static void bgp_show_all_instances_routes_vty(struct vty
*vty
, afi_t afi
,
8539 safi_t safi
, uint8_t use_json
)
8541 struct listnode
*node
, *nnode
;
8546 vty_out(vty
, "{\n");
8548 for (ALL_LIST_ELEMENTS(bm
->bgp
, node
, nnode
, bgp
)) {
8551 vty_out(vty
, ",\n");
8555 vty_out(vty
, "\"%s\":",
8556 (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)
8560 vty_out(vty
, "\nInstance %s:\n",
8561 (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)
8565 bgp_show(vty
, bgp
, afi
, safi
, bgp_show_type_normal
, NULL
,
8570 vty_out(vty
, "}\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
,
8762 struct prefix match
;
8763 struct bgp_node
*rn
;
8764 struct bgp_node
*rm
;
8765 struct bgp_info
*ri
;
8766 struct bgp_table
*table
;
8767 json_object
*json
= NULL
;
8768 json_object
*json_paths
= NULL
;
8770 /* Check IP address argument. */
8771 ret
= str2prefix(ip_str
, &match
);
8773 vty_out(vty
, "address is malformed\n");
8777 match
.family
= afi2family(afi
);
8780 json
= json_object_new_object();
8781 json_paths
= json_object_new_array();
8784 if (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
|| safi
== SAFI_EVPN
) {
8785 for (rn
= bgp_table_top(rib
); rn
; rn
= bgp_route_next(rn
)) {
8786 if (prd
&& memcmp(rn
->p
.u
.val
, prd
->val
, 8) != 0)
8789 if ((table
= rn
->info
) == NULL
)
8794 if ((rm
= bgp_node_match(table
, &match
)) == NULL
)
8798 && rm
->p
.prefixlen
!= match
.prefixlen
) {
8799 bgp_unlock_node(rm
);
8803 for (ri
= rm
->info
; ri
; ri
= ri
->next
) {
8805 route_vty_out_detail_header(
8807 (struct prefix_rd
*)&rn
->p
,
8808 AFI_IP
, safi
, json
);
8813 if (pathtype
== BGP_PATH_ALL
8814 || (pathtype
== BGP_PATH_BESTPATH
8815 && CHECK_FLAG(ri
->flags
,
8817 || (pathtype
== BGP_PATH_MULTIPATH
8818 && (CHECK_FLAG(ri
->flags
,
8820 || CHECK_FLAG(ri
->flags
,
8821 BGP_INFO_SELECTED
))))
8822 route_vty_out_detail(vty
, bgp
, &rm
->p
,
8827 bgp_unlock_node(rm
);
8829 } else if (safi
== SAFI_FLOWSPEC
) {
8830 display
= bgp_flowspec_display_match_per_ip(afi
, rib
,
8831 &match
, prefix_check
,
8838 if ((rn
= bgp_node_match(rib
, &match
)) != NULL
) {
8840 || rn
->p
.prefixlen
== match
.prefixlen
) {
8841 for (ri
= rn
->info
; ri
; ri
= ri
->next
) {
8843 route_vty_out_detail_header(
8844 vty
, bgp
, rn
, NULL
, afi
,
8850 if (pathtype
== BGP_PATH_ALL
8851 || (pathtype
== BGP_PATH_BESTPATH
8855 || (pathtype
== BGP_PATH_MULTIPATH
8861 BGP_INFO_SELECTED
))))
8862 route_vty_out_detail(
8863 vty
, bgp
, &rn
->p
, ri
,
8864 afi
, safi
, json_paths
);
8868 bgp_unlock_node(rn
);
8874 json_object_object_add(json
, "paths", json_paths
);
8876 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
8877 json
, JSON_C_TO_STRING_PRETTY
));
8878 json_object_free(json
);
8881 vty_out(vty
, "%% Network not in table\n");
8889 /* Display specified route of Main RIB */
8890 static int bgp_show_route(struct vty
*vty
, struct bgp
*bgp
, const char *ip_str
,
8891 afi_t afi
, safi_t safi
, struct prefix_rd
*prd
,
8892 int prefix_check
, enum bgp_path_type pathtype
,
8896 bgp
= bgp_get_default();
8899 vty_out(vty
, "No BGP process is configured\n");
8901 vty_out(vty
, "{}\n");
8906 /* labeled-unicast routes live in the unicast table */
8907 if (safi
== SAFI_LABELED_UNICAST
)
8908 safi
= SAFI_UNICAST
;
8910 return bgp_show_route_in_table(vty
, bgp
, bgp
->rib
[afi
][safi
], ip_str
,
8911 afi
, safi
, prd
, prefix_check
, pathtype
,
8915 static int bgp_show_lcommunity(struct vty
*vty
, struct bgp
*bgp
, int argc
,
8916 struct cmd_token
**argv
, afi_t afi
, safi_t safi
,
8919 struct lcommunity
*lcom
;
8925 b
= buffer_new(1024);
8926 for (i
= 0; i
< argc
; i
++) {
8928 buffer_putc(b
, ' ');
8930 if (strmatch(argv
[i
]->text
, "AA:BB:CC")) {
8932 buffer_putstr(b
, argv
[i
]->arg
);
8936 buffer_putc(b
, '\0');
8938 str
= buffer_getstr(b
);
8941 lcom
= lcommunity_str2com(str
);
8942 XFREE(MTYPE_TMP
, str
);
8944 vty_out(vty
, "%% Large-community malformed\n");
8948 return bgp_show(vty
, bgp
, afi
, safi
, bgp_show_type_lcommunity
, lcom
,
8952 static int bgp_show_lcommunity_list(struct vty
*vty
, struct bgp
*bgp
,
8953 const char *lcom
, afi_t afi
, safi_t safi
,
8956 struct community_list
*list
;
8958 list
= community_list_lookup(bgp_clist
, lcom
,
8959 LARGE_COMMUNITY_LIST_MASTER
);
8961 vty_out(vty
, "%% %s is not a valid large-community-list name\n",
8966 return bgp_show(vty
, bgp
, afi
, safi
, bgp_show_type_lcommunity_list
,
8970 DEFUN (show_ip_bgp_large_community_list
,
8971 show_ip_bgp_large_community_list_cmd
,
8972 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]] large-community-list <(1-500)|WORD> [json]",
8976 BGP_INSTANCE_HELP_STR
8978 BGP_SAFI_WITH_LABEL_HELP_STR
8979 "Display routes matching the large-community-list\n"
8980 "large-community-list number\n"
8981 "large-community-list name\n"
8985 afi_t afi
= AFI_IP6
;
8986 safi_t safi
= SAFI_UNICAST
;
8989 if (argv_find(argv
, argc
, "ip", &idx
))
8991 if (argv_find(argv
, argc
, "view", &idx
)
8992 || argv_find(argv
, argc
, "vrf", &idx
))
8993 vrf
= argv
[++idx
]->arg
;
8994 if (argv_find(argv
, argc
, "ipv4", &idx
)
8995 || argv_find(argv
, argc
, "ipv6", &idx
)) {
8996 afi
= strmatch(argv
[idx
]->text
, "ipv6") ? AFI_IP6
: AFI_IP
;
8997 if (argv_find(argv
, argc
, "unicast", &idx
)
8998 || argv_find(argv
, argc
, "multicast", &idx
))
8999 safi
= bgp_vty_safi_from_str(argv
[idx
]->text
);
9002 int uj
= use_json(argc
, argv
);
9004 struct bgp
*bgp
= bgp_lookup_by_name(vrf
);
9006 vty_out(vty
, "Can't find BGP instance %s\n", vrf
);
9010 argv_find(argv
, argc
, "large-community-list", &idx
);
9011 return bgp_show_lcommunity_list(vty
, bgp
, argv
[idx
+ 1]->arg
, afi
, safi
,
9014 DEFUN (show_ip_bgp_large_community
,
9015 show_ip_bgp_large_community_cmd
,
9016 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]] large-community [AA:BB:CC] [json]",
9020 BGP_INSTANCE_HELP_STR
9022 BGP_SAFI_WITH_LABEL_HELP_STR
9023 "Display routes matching the large-communities\n"
9024 "List of large-community numbers\n"
9028 afi_t afi
= AFI_IP6
;
9029 safi_t safi
= SAFI_UNICAST
;
9032 if (argv_find(argv
, argc
, "ip", &idx
))
9034 if (argv_find(argv
, argc
, "view", &idx
)
9035 || argv_find(argv
, argc
, "vrf", &idx
))
9036 vrf
= argv
[++idx
]->arg
;
9037 if (argv_find(argv
, argc
, "ipv4", &idx
)
9038 || argv_find(argv
, argc
, "ipv6", &idx
)) {
9039 afi
= strmatch(argv
[idx
]->text
, "ipv6") ? AFI_IP6
: AFI_IP
;
9040 if (argv_find(argv
, argc
, "unicast", &idx
)
9041 || argv_find(argv
, argc
, "multicast", &idx
))
9042 safi
= bgp_vty_safi_from_str(argv
[idx
]->text
);
9045 int uj
= use_json(argc
, argv
);
9047 struct bgp
*bgp
= bgp_lookup_by_name(vrf
);
9049 vty_out(vty
, "Can't find BGP instance %s\n", vrf
);
9053 if (argv_find(argv
, argc
, "AA:BB:CC", &idx
))
9054 return bgp_show_lcommunity(vty
, bgp
, argc
, argv
, afi
, safi
, uj
);
9056 return bgp_show(vty
, bgp
, afi
, safi
,
9057 bgp_show_type_lcommunity_all
, NULL
, uj
);
9060 static int bgp_table_stats(struct vty
*vty
, struct bgp
*bgp
, afi_t afi
,
9064 /* BGP route print out function without JSON */
9067 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]]\
9068 <dampening <parameters>\
9073 |community <AA:NN|local-AS|no-advertise|no-export|graceful-shutdown\
9074 no-peer|blackhole|llgr-stale|no-llgr|accept-own|accept-own-nexthop\
9075 route-filter-v6|route-filter-v4|route-filter-translated-v6|\
9076 route-filter-translated-v4> [exact-match]\
9077 |community-list <(1-500)|WORD> [exact-match]\
9078 |A.B.C.D/M longer-prefixes\
9079 |X:X::X:X/M longer-prefixes\
9084 BGP_INSTANCE_HELP_STR
9086 BGP_SAFI_WITH_LABEL_HELP_STR
9087 "Display detailed information about dampening\n"
9088 "Display detail of configured dampening parameters\n"
9089 "Display routes matching the route-map\n"
9090 "A route-map to match on\n"
9091 "Display routes conforming to the prefix-list\n"
9092 "Prefix-list name\n"
9093 "Display routes conforming to the filter-list\n"
9094 "Regular expression access list name\n"
9095 "BGP RIB advertisement statistics\n"
9096 "Display routes matching the communities\n"
9098 "Do not send outside local AS (well-known community)\n"
9099 "Do not advertise to any peer (well-known community)\n"
9100 "Do not export to next AS (well-known community)\n"
9101 "Graceful shutdown (well-known community)\n"
9102 "Do not export to any peer (well-known community)\n"
9103 "Inform EBGP peers to blackhole traffic to prefix (well-known community)\n"
9104 "Staled Long-lived Graceful Restart VPN route (well-known community)\n"
9105 "Removed because Long-lived Graceful Restart was not enabled for VPN route (well-known community)\n"
9106 "Should accept local VPN route if exported and imported into different VRF (well-known community)\n"
9107 "Should accept VPN route with local nexthop (well-known community)\n"
9108 "RT VPNv6 route filtering (well-known community)\n"
9109 "RT VPNv4 route filtering (well-known community)\n"
9110 "RT translated VPNv6 route filtering (well-known community)\n"
9111 "RT translated VPNv4 route filtering (well-known community)\n"
9112 "Exact match of the communities\n"
9113 "Display routes matching the community-list\n"
9114 "community-list number\n"
9115 "community-list name\n"
9116 "Exact match of the communities\n"
9118 "Display route and more specific routes\n"
9120 "Display route and more specific routes\n")
9122 afi_t afi
= AFI_IP6
;
9123 safi_t safi
= SAFI_UNICAST
;
9124 int exact_match
= 0;
9125 struct bgp
*bgp
= NULL
;
9128 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
9133 if (argv_find(argv
, argc
, "dampening", &idx
)) {
9134 if (argv_find(argv
, argc
, "parameters", &idx
))
9135 return bgp_show_dampening_parameters(vty
, afi
, safi
);
9138 if (argv_find(argv
, argc
, "prefix-list", &idx
))
9139 return bgp_show_prefix_list(vty
, bgp
, argv
[idx
+ 1]->arg
, afi
,
9140 safi
, bgp_show_type_prefix_list
);
9142 if (argv_find(argv
, argc
, "filter-list", &idx
))
9143 return bgp_show_filter_list(vty
, bgp
, argv
[idx
+ 1]->arg
, afi
,
9144 safi
, bgp_show_type_filter_list
);
9146 if (argv_find(argv
, argc
, "statistics", &idx
))
9147 return bgp_table_stats(vty
, bgp
, afi
, safi
);
9149 if (argv_find(argv
, argc
, "route-map", &idx
))
9150 return bgp_show_route_map(vty
, bgp
, argv
[idx
+ 1]->arg
, afi
,
9151 safi
, bgp_show_type_route_map
);
9153 if (argv_find(argv
, argc
, "community-list", &idx
)) {
9154 const char *clist_number_or_name
= argv
[++idx
]->arg
;
9155 if (++idx
< argc
&& strmatch(argv
[idx
]->text
, "exact-match"))
9157 return bgp_show_community_list(vty
, bgp
, clist_number_or_name
,
9158 exact_match
, afi
, safi
);
9161 if (argv_find(argv
, argc
, "A.B.C.D/M", &idx
)
9162 || argv_find(argv
, argc
, "X:X::X:X/M", &idx
))
9163 return bgp_show_prefix_longer(vty
, bgp
, argv
[idx
]->arg
, afi
,
9165 bgp_show_type_prefix_longer
);
9170 /* BGP route print out function with JSON */
9171 DEFUN (show_ip_bgp_json
,
9172 show_ip_bgp_json_cmd
,
9173 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]]\
9176 |dampening <flap-statistics|dampened-paths>\
9177 |community [<AA:NN|local-AS|no-advertise|no-export|graceful-shutdown>] [exact-match]\
9182 BGP_INSTANCE_HELP_STR
9184 BGP_SAFI_WITH_LABEL_HELP_STR
9185 "Display only routes with non-natural netmasks\n"
9186 "Display detailed information about dampening\n"
9187 "Display flap statistics of routes\n"
9188 "Display paths suppressed due to dampening\n"
9189 "Display routes matching the communities\n"
9191 "Do not send outside local AS (well-known community)\n"
9192 "Do not advertise to any peer (well-known community)\n"
9193 "Do not export to next AS (well-known community)\n"
9194 "Graceful shutdown (well-known community)\n"
9195 "Exact match of the communities\n"
9198 afi_t afi
= AFI_IP6
;
9199 safi_t safi
= SAFI_UNICAST
;
9200 enum bgp_show_type sh_type
= bgp_show_type_normal
;
9201 struct bgp
*bgp
= NULL
;
9203 int idx_community_type
= 0;
9204 int exact_match
= 0;
9206 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
9211 int uj
= use_json(argc
, argv
);
9215 if (argv_find(argv
, argc
, "cidr-only", &idx
))
9216 return bgp_show(vty
, bgp
, afi
, safi
, bgp_show_type_cidr_only
,
9219 if (argv_find(argv
, argc
, "dampening", &idx
)) {
9220 if (argv_find(argv
, argc
, "dampened-paths", &idx
))
9221 return bgp_show(vty
, bgp
, afi
, safi
,
9222 bgp_show_type_dampend_paths
, NULL
, uj
);
9223 else if (argv_find(argv
, argc
, "flap-statistics", &idx
))
9224 return bgp_show(vty
, bgp
, afi
, safi
,
9225 bgp_show_type_flap_statistics
, NULL
,
9229 if (argv_find(argv
, argc
, "community", &idx
)) {
9231 /* show a specific community */
9232 if (argv_find(argv
, argc
, "local-AS", &idx_community_type
) ||
9233 argv_find(argv
, argc
, "no-advertise",
9234 &idx_community_type
) ||
9235 argv_find(argv
, argc
, "no-export",
9236 &idx_community_type
) ||
9237 argv_find(argv
, argc
, "graceful-shutdown",
9238 &idx_community_type
) ||
9239 argv_find(argv
, argc
, "AA:NN", &idx_community_type
)) {
9240 if (argv_find(argv
, argc
, "exact-match", &idx
))
9243 return (bgp_show_community(vty
, bgp
,
9244 argv
[idx_community_type
]->arg
,
9245 exact_match
, afi
, safi
, uj
));
9248 /* show all communities */
9249 return (bgp_show(vty
, bgp
, afi
, safi
,
9250 bgp_show_type_community_all
, NULL
,
9255 return bgp_show(vty
, bgp
, afi
, safi
, sh_type
, NULL
, uj
);
9258 DEFUN (show_ip_bgp_route
,
9259 show_ip_bgp_route_cmd
,
9260 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]]"
9261 "<A.B.C.D|A.B.C.D/M|X:X::X:X|X:X::X:X/M> [<bestpath|multipath>] [json]",
9265 BGP_INSTANCE_HELP_STR
9267 BGP_SAFI_WITH_LABEL_HELP_STR
9268 "Network in the BGP routing table to display\n"
9270 "Network in the BGP routing table to display\n"
9272 "Display only the bestpath\n"
9273 "Display only multipaths\n"
9276 int prefix_check
= 0;
9278 afi_t afi
= AFI_IP6
;
9279 safi_t safi
= SAFI_UNICAST
;
9280 char *prefix
= NULL
;
9281 struct bgp
*bgp
= NULL
;
9282 enum bgp_path_type path_type
;
9283 uint8_t uj
= use_json(argc
, argv
);
9287 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
9294 "Specified 'all' vrf's but this command currently only works per view/vrf\n");
9298 /* <A.B.C.D|A.B.C.D/M|X:X::X:X|X:X::X:X/M> */
9299 if (argv_find(argv
, argc
, "A.B.C.D", &idx
)
9300 || argv_find(argv
, argc
, "X:X::X:X", &idx
))
9302 else if (argv_find(argv
, argc
, "A.B.C.D/M", &idx
)
9303 || argv_find(argv
, argc
, "X:X::X:X/M", &idx
))
9306 if ((argv
[idx
]->type
== IPV6_TKN
|| argv
[idx
]->type
== IPV6_PREFIX_TKN
)
9307 && afi
!= AFI_IP6
) {
9309 "%% Cannot specify IPv6 address or prefix with IPv4 AFI\n");
9312 if ((argv
[idx
]->type
== IPV4_TKN
|| argv
[idx
]->type
== IPV4_PREFIX_TKN
)
9315 "%% Cannot specify IPv4 address or prefix with IPv6 AFI\n");
9319 prefix
= argv
[idx
]->arg
;
9321 /* [<bestpath|multipath>] */
9322 if (argv_find(argv
, argc
, "bestpath", &idx
))
9323 path_type
= BGP_PATH_BESTPATH
;
9324 else if (argv_find(argv
, argc
, "multipath", &idx
))
9325 path_type
= BGP_PATH_MULTIPATH
;
9327 path_type
= BGP_PATH_ALL
;
9329 return bgp_show_route(vty
, bgp
, prefix
, afi
, safi
, NULL
, prefix_check
,
9333 DEFUN (show_ip_bgp_regexp
,
9334 show_ip_bgp_regexp_cmd
,
9335 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]] regexp REGEX...",
9339 BGP_INSTANCE_HELP_STR
9341 BGP_SAFI_WITH_LABEL_HELP_STR
9342 "Display routes matching the AS path regular expression\n"
9343 "A regular-expression to match the BGP AS paths\n")
9345 afi_t afi
= AFI_IP6
;
9346 safi_t safi
= SAFI_UNICAST
;
9347 struct bgp
*bgp
= NULL
;
9350 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
9355 // get index of regex
9356 argv_find(argv
, argc
, "regexp", &idx
);
9359 char *regstr
= argv_concat(argv
, argc
, idx
);
9360 int rc
= bgp_show_regexp(vty
, bgp
, (const char *)regstr
, afi
, safi
,
9361 bgp_show_type_regexp
);
9362 XFREE(MTYPE_TMP
, regstr
);
9366 DEFUN (show_ip_bgp_instance_all
,
9367 show_ip_bgp_instance_all_cmd
,
9368 "show [ip] bgp <view|vrf> all ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]] [json]",
9372 BGP_INSTANCE_ALL_HELP_STR
9374 BGP_SAFI_WITH_LABEL_HELP_STR
9378 safi_t safi
= SAFI_UNICAST
;
9379 struct bgp
*bgp
= NULL
;
9382 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
9387 int uj
= use_json(argc
, argv
);
9391 bgp_show_all_instances_routes_vty(vty
, afi
, safi
, uj
);
9395 static int bgp_show_regexp(struct vty
*vty
, struct bgp
*bgp
, const char *regstr
,
9396 afi_t afi
, safi_t safi
, enum bgp_show_type type
)
9401 regex
= bgp_regcomp(regstr
);
9403 vty_out(vty
, "Can't compile regexp %s\n", regstr
);
9407 rc
= bgp_show(vty
, bgp
, afi
, safi
, type
, regex
, 0);
9408 bgp_regex_free(regex
);
9412 static int bgp_show_prefix_list(struct vty
*vty
, struct bgp
*bgp
,
9413 const char *prefix_list_str
, afi_t afi
,
9414 safi_t safi
, enum bgp_show_type type
)
9416 struct prefix_list
*plist
;
9418 plist
= prefix_list_lookup(afi
, prefix_list_str
);
9419 if (plist
== NULL
) {
9420 vty_out(vty
, "%% %s is not a valid prefix-list name\n",
9425 return bgp_show(vty
, bgp
, afi
, safi
, type
, plist
, 0);
9428 static int bgp_show_filter_list(struct vty
*vty
, struct bgp
*bgp
,
9429 const char *filter
, afi_t afi
, safi_t safi
,
9430 enum bgp_show_type type
)
9432 struct as_list
*as_list
;
9434 as_list
= as_list_lookup(filter
);
9435 if (as_list
== NULL
) {
9436 vty_out(vty
, "%% %s is not a valid AS-path access-list name\n",
9441 return bgp_show(vty
, bgp
, afi
, safi
, type
, as_list
, 0);
9444 static int bgp_show_route_map(struct vty
*vty
, struct bgp
*bgp
,
9445 const char *rmap_str
, afi_t afi
, safi_t safi
,
9446 enum bgp_show_type type
)
9448 struct route_map
*rmap
;
9450 rmap
= route_map_lookup_by_name(rmap_str
);
9452 vty_out(vty
, "%% %s is not a valid route-map name\n", rmap_str
);
9456 return bgp_show(vty
, bgp
, afi
, safi
, type
, rmap
, 0);
9459 static int bgp_show_community(struct vty
*vty
, struct bgp
*bgp
,
9460 const char *comstr
, int exact
, afi_t afi
,
9461 safi_t safi
, uint8_t use_json
)
9463 struct community
*com
;
9466 com
= community_str2com(comstr
);
9468 vty_out(vty
, "%% Community malformed: %s\n", comstr
);
9472 ret
= bgp_show(vty
, bgp
, afi
, safi
,
9473 (exact
? bgp_show_type_community_exact
9474 : bgp_show_type_community
),
9476 community_free(com
);
9481 static int bgp_show_community_list(struct vty
*vty
, struct bgp
*bgp
,
9482 const char *com
, int exact
, afi_t afi
,
9485 struct community_list
*list
;
9487 list
= community_list_lookup(bgp_clist
, com
, COMMUNITY_LIST_MASTER
);
9489 vty_out(vty
, "%% %s is not a valid community-list name\n", com
);
9493 return bgp_show(vty
, bgp
, afi
, safi
,
9494 (exact
? bgp_show_type_community_list_exact
9495 : bgp_show_type_community_list
),
9499 static int bgp_show_prefix_longer(struct vty
*vty
, struct bgp
*bgp
,
9500 const char *prefix
, afi_t afi
, safi_t safi
,
9501 enum bgp_show_type type
)
9508 ret
= str2prefix(prefix
, p
);
9510 vty_out(vty
, "%% Malformed Prefix\n");
9514 ret
= bgp_show(vty
, bgp
, afi
, safi
, type
, p
, 0);
9519 static struct peer
*peer_lookup_in_view(struct vty
*vty
, struct bgp
*bgp
,
9520 const char *ip_str
, uint8_t use_json
)
9526 /* Get peer sockunion. */
9527 ret
= str2sockunion(ip_str
, &su
);
9529 peer
= peer_lookup_by_conf_if(bgp
, ip_str
);
9531 peer
= peer_lookup_by_hostname(bgp
, ip_str
);
9535 json_object
*json_no
= NULL
;
9536 json_no
= json_object_new_object();
9537 json_object_string_add(
9539 "malformedAddressOrName",
9541 vty_out(vty
, "%s\n",
9542 json_object_to_json_string_ext(
9544 JSON_C_TO_STRING_PRETTY
));
9545 json_object_free(json_no
);
9548 "%% Malformed address or name: %s\n",
9556 /* Peer structure lookup. */
9557 peer
= peer_lookup(bgp
, &su
);
9560 json_object
*json_no
= NULL
;
9561 json_no
= json_object_new_object();
9562 json_object_string_add(json_no
, "warning",
9563 "No such neighbor in this view/vrf");
9564 vty_out(vty
, "%s\n",
9565 json_object_to_json_string_ext(
9566 json_no
, JSON_C_TO_STRING_PRETTY
));
9567 json_object_free(json_no
);
9569 vty_out(vty
, "No such neighbor in this view/vrf\n");
9577 BGP_STATS_MAXBITLEN
= 0,
9581 BGP_STATS_UNAGGREGATEABLE
,
9582 BGP_STATS_MAX_AGGREGATEABLE
,
9583 BGP_STATS_AGGREGATES
,
9585 BGP_STATS_ASPATH_COUNT
,
9586 BGP_STATS_ASPATH_MAXHOPS
,
9587 BGP_STATS_ASPATH_TOTHOPS
,
9588 BGP_STATS_ASPATH_MAXSIZE
,
9589 BGP_STATS_ASPATH_TOTSIZE
,
9590 BGP_STATS_ASN_HIGHEST
,
9594 static const char *table_stats_strs
[] = {
9595 [BGP_STATS_PREFIXES
] = "Total Prefixes",
9596 [BGP_STATS_TOTPLEN
] = "Average prefix length",
9597 [BGP_STATS_RIB
] = "Total Advertisements",
9598 [BGP_STATS_UNAGGREGATEABLE
] = "Unaggregateable prefixes",
9599 [BGP_STATS_MAX_AGGREGATEABLE
] =
9600 "Maximum aggregateable prefixes",
9601 [BGP_STATS_AGGREGATES
] = "BGP Aggregate advertisements",
9602 [BGP_STATS_SPACE
] = "Address space advertised",
9603 [BGP_STATS_ASPATH_COUNT
] = "Advertisements with paths",
9604 [BGP_STATS_ASPATH_MAXHOPS
] = "Longest AS-Path (hops)",
9605 [BGP_STATS_ASPATH_MAXSIZE
] = "Largest AS-Path (bytes)",
9606 [BGP_STATS_ASPATH_TOTHOPS
] = "Average AS-Path length (hops)",
9607 [BGP_STATS_ASPATH_TOTSIZE
] = "Average AS-Path size (bytes)",
9608 [BGP_STATS_ASN_HIGHEST
] = "Highest public ASN",
9609 [BGP_STATS_MAX
] = NULL
,
9612 struct bgp_table_stats
{
9613 struct bgp_table
*table
;
9614 unsigned long long counts
[BGP_STATS_MAX
];
9619 #define TALLY_SIGFIG 100000
9620 static unsigned long
9621 ravg_tally (unsigned long count
, unsigned long oldavg
, unsigned long newval
)
9623 unsigned long newtot
= (count
-1) * oldavg
+ (newval
* TALLY_SIGFIG
);
9624 unsigned long res
= (newtot
* TALLY_SIGFIG
) / count
;
9625 unsigned long ret
= newtot
/ count
;
9627 if ((res
% TALLY_SIGFIG
) > (TALLY_SIGFIG
/2))
9634 static int bgp_table_stats_walker(struct thread
*t
)
9636 struct bgp_node
*rn
;
9637 struct bgp_node
*top
;
9638 struct bgp_table_stats
*ts
= THREAD_ARG(t
);
9639 unsigned int space
= 0;
9641 if (!(top
= bgp_table_top(ts
->table
)))
9644 switch (top
->p
.family
) {
9646 space
= IPV4_MAX_BITLEN
;
9649 space
= IPV6_MAX_BITLEN
;
9653 ts
->counts
[BGP_STATS_MAXBITLEN
] = space
;
9655 for (rn
= top
; rn
; rn
= bgp_route_next(rn
)) {
9656 struct bgp_info
*ri
;
9657 struct bgp_node
*prn
= bgp_node_parent_nolock(rn
);
9658 unsigned int rinum
= 0;
9666 ts
->counts
[BGP_STATS_PREFIXES
]++;
9667 ts
->counts
[BGP_STATS_TOTPLEN
] += rn
->p
.prefixlen
;
9670 ts
->counts
[BGP_STATS_AVGPLEN
]
9671 = ravg_tally (ts
->counts
[BGP_STATS_PREFIXES
],
9672 ts
->counts
[BGP_STATS_AVGPLEN
],
9676 /* check if the prefix is included by any other announcements */
9677 while (prn
&& !prn
->info
)
9678 prn
= bgp_node_parent_nolock(prn
);
9680 if (prn
== NULL
|| prn
== top
) {
9681 ts
->counts
[BGP_STATS_UNAGGREGATEABLE
]++;
9682 /* announced address space */
9685 pow(2.0, space
- rn
->p
.prefixlen
);
9686 } else if (prn
->info
)
9687 ts
->counts
[BGP_STATS_MAX_AGGREGATEABLE
]++;
9689 for (ri
= rn
->info
; ri
; ri
= ri
->next
) {
9691 ts
->counts
[BGP_STATS_RIB
]++;
9694 && (CHECK_FLAG(ri
->attr
->flag
,
9696 BGP_ATTR_ATOMIC_AGGREGATE
))))
9697 ts
->counts
[BGP_STATS_AGGREGATES
]++;
9700 if (ri
->attr
&& ri
->attr
->aspath
) {
9702 aspath_count_hops(ri
->attr
->aspath
);
9704 aspath_size(ri
->attr
->aspath
);
9705 as_t highest
= aspath_highest(ri
->attr
->aspath
);
9707 ts
->counts
[BGP_STATS_ASPATH_COUNT
]++;
9709 if (hops
> ts
->counts
[BGP_STATS_ASPATH_MAXHOPS
])
9710 ts
->counts
[BGP_STATS_ASPATH_MAXHOPS
] =
9713 if (size
> ts
->counts
[BGP_STATS_ASPATH_MAXSIZE
])
9714 ts
->counts
[BGP_STATS_ASPATH_MAXSIZE
] =
9717 ts
->counts
[BGP_STATS_ASPATH_TOTHOPS
] += hops
;
9718 ts
->counts
[BGP_STATS_ASPATH_TOTSIZE
] += size
;
9720 ts
->counts
[BGP_STATS_ASPATH_AVGHOPS
]
9721 = ravg_tally (ts
->counts
[BGP_STATS_ASPATH_COUNT
],
9722 ts
->counts
[BGP_STATS_ASPATH_AVGHOPS
],
9724 ts
->counts
[BGP_STATS_ASPATH_AVGSIZE
]
9725 = ravg_tally (ts
->counts
[BGP_STATS_ASPATH_COUNT
],
9726 ts
->counts
[BGP_STATS_ASPATH_AVGSIZE
],
9729 if (highest
> ts
->counts
[BGP_STATS_ASN_HIGHEST
])
9730 ts
->counts
[BGP_STATS_ASN_HIGHEST
] =
9738 static int bgp_table_stats(struct vty
*vty
, struct bgp
*bgp
, afi_t afi
,
9741 struct bgp_table_stats ts
;
9744 if (!bgp
->rib
[afi
][safi
]) {
9745 vty_out(vty
, "%% No RIB exist's for the AFI(%d)/SAFI(%d)\n",
9750 vty_out(vty
, "BGP %s RIB statistics\n", afi_safi_print(afi
, safi
));
9752 /* labeled-unicast routes live in the unicast table */
9753 if (safi
== SAFI_LABELED_UNICAST
)
9754 safi
= SAFI_UNICAST
;
9756 memset(&ts
, 0, sizeof(ts
));
9757 ts
.table
= bgp
->rib
[afi
][safi
];
9758 thread_execute(bm
->master
, bgp_table_stats_walker
, &ts
, 0);
9760 for (i
= 0; i
< BGP_STATS_MAX
; i
++) {
9761 if (!table_stats_strs
[i
])
9766 case BGP_STATS_ASPATH_AVGHOPS
:
9767 case BGP_STATS_ASPATH_AVGSIZE
:
9768 case BGP_STATS_AVGPLEN
:
9769 vty_out (vty
, "%-30s: ", table_stats_strs
[i
]);
9770 vty_out (vty
, "%12.2f",
9771 (float)ts
.counts
[i
] / (float)TALLY_SIGFIG
);
9774 case BGP_STATS_ASPATH_TOTHOPS
:
9775 case BGP_STATS_ASPATH_TOTSIZE
:
9776 vty_out(vty
, "%-30s: ", table_stats_strs
[i
]);
9777 vty_out(vty
, "%12.2f",
9779 ? (float)ts
.counts
[i
]
9781 [BGP_STATS_ASPATH_COUNT
]
9784 case BGP_STATS_TOTPLEN
:
9785 vty_out(vty
, "%-30s: ", table_stats_strs
[i
]);
9786 vty_out(vty
, "%12.2f",
9788 ? (float)ts
.counts
[i
]
9790 [BGP_STATS_PREFIXES
]
9793 case BGP_STATS_SPACE
:
9794 vty_out(vty
, "%-30s: ", table_stats_strs
[i
]);
9795 vty_out(vty
, "%12g\n", ts
.total_space
);
9797 if (afi
== AFI_IP6
) {
9798 vty_out(vty
, "%30s: ", "/32 equivalent ");
9799 vty_out(vty
, "%12g\n",
9800 ts
.total_space
* pow(2.0, -128 + 32));
9801 vty_out(vty
, "%30s: ", "/48 equivalent ");
9802 vty_out(vty
, "%12g\n",
9803 ts
.total_space
* pow(2.0, -128 + 48));
9805 vty_out(vty
, "%30s: ", "% announced ");
9806 vty_out(vty
, "%12.2f\n",
9807 ts
.total_space
* 100. * pow(2.0, -32));
9808 vty_out(vty
, "%30s: ", "/8 equivalent ");
9809 vty_out(vty
, "%12.2f\n",
9810 ts
.total_space
* pow(2.0, -32 + 8));
9811 vty_out(vty
, "%30s: ", "/24 equivalent ");
9812 vty_out(vty
, "%12.2f\n",
9813 ts
.total_space
* pow(2.0, -32 + 24));
9817 vty_out(vty
, "%-30s: ", table_stats_strs
[i
]);
9818 vty_out(vty
, "%12llu", ts
.counts
[i
]);
9835 PCOUNT_PFCNT
, /* the figure we display to users */
9839 static const char *pcount_strs
[] = {
9840 [PCOUNT_ADJ_IN
] = "Adj-in",
9841 [PCOUNT_DAMPED
] = "Damped",
9842 [PCOUNT_REMOVED
] = "Removed",
9843 [PCOUNT_HISTORY
] = "History",
9844 [PCOUNT_STALE
] = "Stale",
9845 [PCOUNT_VALID
] = "Valid",
9846 [PCOUNT_ALL
] = "All RIB",
9847 [PCOUNT_COUNTED
] = "PfxCt counted",
9848 [PCOUNT_PFCNT
] = "Useable",
9849 [PCOUNT_MAX
] = NULL
,
9852 struct peer_pcounts
{
9853 unsigned int count
[PCOUNT_MAX
];
9854 const struct peer
*peer
;
9855 const struct bgp_table
*table
;
9858 static int bgp_peer_count_walker(struct thread
*t
)
9860 struct bgp_node
*rn
;
9861 struct peer_pcounts
*pc
= THREAD_ARG(t
);
9862 const struct peer
*peer
= pc
->peer
;
9864 for (rn
= bgp_table_top(pc
->table
); rn
; rn
= bgp_route_next(rn
)) {
9865 struct bgp_adj_in
*ain
;
9866 struct bgp_info
*ri
;
9868 for (ain
= rn
->adj_in
; ain
; ain
= ain
->next
)
9869 if (ain
->peer
== peer
)
9870 pc
->count
[PCOUNT_ADJ_IN
]++;
9872 for (ri
= rn
->info
; ri
; ri
= ri
->next
) {
9873 if (ri
->peer
!= peer
)
9876 pc
->count
[PCOUNT_ALL
]++;
9878 if (CHECK_FLAG(ri
->flags
, BGP_INFO_DAMPED
))
9879 pc
->count
[PCOUNT_DAMPED
]++;
9880 if (CHECK_FLAG(ri
->flags
, BGP_INFO_HISTORY
))
9881 pc
->count
[PCOUNT_HISTORY
]++;
9882 if (CHECK_FLAG(ri
->flags
, BGP_INFO_REMOVED
))
9883 pc
->count
[PCOUNT_REMOVED
]++;
9884 if (CHECK_FLAG(ri
->flags
, BGP_INFO_STALE
))
9885 pc
->count
[PCOUNT_STALE
]++;
9886 if (CHECK_FLAG(ri
->flags
, BGP_INFO_VALID
))
9887 pc
->count
[PCOUNT_VALID
]++;
9888 if (!CHECK_FLAG(ri
->flags
, BGP_INFO_UNUSEABLE
))
9889 pc
->count
[PCOUNT_PFCNT
]++;
9891 if (CHECK_FLAG(ri
->flags
, BGP_INFO_COUNTED
)) {
9892 pc
->count
[PCOUNT_COUNTED
]++;
9893 if (CHECK_FLAG(ri
->flags
, BGP_INFO_UNUSEABLE
))
9894 flog_err(LIB_ERR_DEVELOPMENT
,
9895 "Attempting to count but flags say it is unusable");
9897 if (!CHECK_FLAG(ri
->flags
, BGP_INFO_UNUSEABLE
))
9898 flog_err(LIB_ERR_DEVELOPMENT
,
9899 "Not counted but flags say we should");
9906 static int bgp_peer_counts(struct vty
*vty
, struct peer
*peer
, afi_t afi
,
9907 safi_t safi
, uint8_t use_json
)
9909 struct peer_pcounts pcounts
= {.peer
= peer
};
9911 json_object
*json
= NULL
;
9912 json_object
*json_loop
= NULL
;
9915 json
= json_object_new_object();
9916 json_loop
= json_object_new_object();
9919 if (!peer
|| !peer
->bgp
|| !peer
->afc
[afi
][safi
]
9920 || !peer
->bgp
->rib
[afi
][safi
]) {
9922 json_object_string_add(
9924 "No such neighbor or address family");
9925 vty_out(vty
, "%s\n", json_object_to_json_string(json
));
9926 json_object_free(json
);
9928 vty_out(vty
, "%% No such neighbor or address family\n");
9933 memset(&pcounts
, 0, sizeof(pcounts
));
9934 pcounts
.peer
= peer
;
9935 pcounts
.table
= peer
->bgp
->rib
[afi
][safi
];
9937 /* in-place call via thread subsystem so as to record execution time
9938 * stats for the thread-walk (i.e. ensure this can't be blamed on
9939 * on just vty_read()).
9941 thread_execute(bm
->master
, bgp_peer_count_walker
, &pcounts
, 0);
9944 json_object_string_add(json
, "prefixCountsFor", peer
->host
);
9945 json_object_string_add(json
, "multiProtocol",
9946 afi_safi_print(afi
, safi
));
9947 json_object_int_add(json
, "pfxCounter",
9948 peer
->pcount
[afi
][safi
]);
9950 for (i
= 0; i
< PCOUNT_MAX
; i
++)
9951 json_object_int_add(json_loop
, pcount_strs
[i
],
9954 json_object_object_add(json
, "ribTableWalkCounters", json_loop
);
9956 if (pcounts
.count
[PCOUNT_PFCNT
] != peer
->pcount
[afi
][safi
]) {
9957 json_object_string_add(json
, "pfxctDriftFor",
9959 json_object_string_add(
9960 json
, "recommended",
9961 "Please report this bug, with the above command output");
9963 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
9964 json
, JSON_C_TO_STRING_PRETTY
));
9965 json_object_free(json
);
9969 && bgp_flag_check(peer
->bgp
, BGP_FLAG_SHOW_HOSTNAME
)) {
9970 vty_out(vty
, "Prefix counts for %s/%s, %s\n",
9971 peer
->hostname
, peer
->host
,
9972 afi_safi_print(afi
, safi
));
9974 vty_out(vty
, "Prefix counts for %s, %s\n", peer
->host
,
9975 afi_safi_print(afi
, safi
));
9978 vty_out(vty
, "PfxCt: %ld\n", peer
->pcount
[afi
][safi
]);
9979 vty_out(vty
, "\nCounts from RIB table walk:\n\n");
9981 for (i
= 0; i
< PCOUNT_MAX
; i
++)
9982 vty_out(vty
, "%20s: %-10d\n", pcount_strs
[i
],
9985 if (pcounts
.count
[PCOUNT_PFCNT
] != peer
->pcount
[afi
][safi
]) {
9986 vty_out(vty
, "%s [pcount] PfxCt drift!\n", peer
->host
);
9988 "Please report this bug, with the above command output\n");
9995 DEFUN (show_ip_bgp_instance_neighbor_prefix_counts
,
9996 show_ip_bgp_instance_neighbor_prefix_counts_cmd
,
9997 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_CMD_STR
"]] "
9998 "neighbors <A.B.C.D|X:X::X:X|WORD> prefix-counts [json]",
10002 BGP_INSTANCE_HELP_STR
10005 "Detailed information on TCP and BGP neighbor connections\n"
10006 "Neighbor to display information about\n"
10007 "Neighbor to display information about\n"
10008 "Neighbor on BGP configured interface\n"
10009 "Display detailed prefix count information\n"
10012 afi_t afi
= AFI_IP6
;
10013 safi_t safi
= SAFI_UNICAST
;
10016 struct bgp
*bgp
= NULL
;
10018 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
10021 return CMD_WARNING
;
10023 int uj
= use_json(argc
, argv
);
10027 argv_find(argv
, argc
, "neighbors", &idx
);
10028 peer
= peer_lookup_in_view(vty
, bgp
, argv
[idx
+ 1]->arg
, uj
);
10030 return CMD_WARNING
;
10032 return bgp_peer_counts(vty
, peer
, AFI_IP
, SAFI_UNICAST
, uj
);
10035 #ifdef KEEP_OLD_VPN_COMMANDS
10036 DEFUN (show_ip_bgp_vpn_neighbor_prefix_counts
,
10037 show_ip_bgp_vpn_neighbor_prefix_counts_cmd
,
10038 "show [ip] bgp <vpnv4|vpnv6> all neighbors <A.B.C.D|X:X::X:X|WORD> prefix-counts [json]",
10043 "Display information about all VPNv4 NLRIs\n"
10044 "Detailed information on TCP and BGP neighbor connections\n"
10045 "Neighbor to display information about\n"
10046 "Neighbor to display information about\n"
10047 "Neighbor on BGP configured interface\n"
10048 "Display detailed prefix count information\n"
10053 uint8_t uj
= use_json(argc
, argv
);
10055 peer
= peer_lookup_in_view(vty
, NULL
, argv
[idx_peer
]->arg
, uj
);
10057 return CMD_WARNING
;
10059 return bgp_peer_counts(vty
, peer
, AFI_IP
, SAFI_MPLS_VPN
, uj
);
10062 DEFUN (show_ip_bgp_vpn_all_route_prefix
,
10063 show_ip_bgp_vpn_all_route_prefix_cmd
,
10064 "show [ip] bgp <vpnv4|vpnv6> all <A.B.C.D|A.B.C.D/M> [json]",
10069 "Display information about all VPNv4 NLRIs\n"
10070 "Network in the BGP routing table to display\n"
10071 "Network in the BGP routing table to display\n"
10075 char *network
= NULL
;
10076 struct bgp
*bgp
= bgp_get_default();
10078 vty_out(vty
, "Can't find default instance\n");
10079 return CMD_WARNING
;
10082 if (argv_find(argv
, argc
, "A.B.C.D", &idx
))
10083 network
= argv
[idx
]->arg
;
10084 else if (argv_find(argv
, argc
, "A.B.C.D/M", &idx
))
10085 network
= argv
[idx
]->arg
;
10087 vty_out(vty
, "Unable to figure out Network\n");
10088 return CMD_WARNING
;
10091 return bgp_show_route(vty
, bgp
, network
, AFI_IP
, SAFI_MPLS_VPN
, NULL
, 0,
10092 BGP_PATH_ALL
, use_json(argc
, argv
));
10094 #endif /* KEEP_OLD_VPN_COMMANDS */
10096 DEFUN (show_ip_bgp_l2vpn_evpn_all_route_prefix
,
10097 show_ip_bgp_l2vpn_evpn_all_route_prefix_cmd
,
10098 "show [ip] bgp l2vpn evpn all <A.B.C.D|A.B.C.D/M> [json]",
10104 "Display information about all EVPN NLRIs\n"
10105 "Network in the BGP routing table to display\n"
10106 "Network in the BGP routing table to display\n"
10110 char *network
= NULL
;
10112 if (argv_find(argv
, argc
, "A.B.C.D", &idx
))
10113 network
= argv
[idx
]->arg
;
10114 else if (argv_find(argv
, argc
, "A.B.C.D/M", &idx
))
10115 network
= argv
[idx
]->arg
;
10117 vty_out(vty
, "Unable to figure out Network\n");
10118 return CMD_WARNING
;
10120 return bgp_show_route(vty
, NULL
, network
, AFI_L2VPN
, SAFI_EVPN
, NULL
, 0,
10121 BGP_PATH_ALL
, use_json(argc
, argv
));
10124 static void show_adj_route(struct vty
*vty
, struct peer
*peer
, afi_t afi
,
10125 safi_t safi
, enum bgp_show_adj_route_type type
,
10126 const char *rmap_name
, uint8_t use_json
,
10129 struct bgp_table
*table
;
10130 struct bgp_adj_in
*ain
;
10131 struct bgp_adj_out
*adj
;
10132 unsigned long output_count
;
10133 unsigned long filtered_count
;
10134 struct bgp_node
*rn
;
10140 struct update_subgroup
*subgrp
;
10141 json_object
*json_scode
= NULL
;
10142 json_object
*json_ocode
= NULL
;
10143 json_object
*json_ar
= NULL
;
10144 struct peer_af
*paf
;
10145 bool route_filtered
;
10148 json_scode
= json_object_new_object();
10149 json_ocode
= json_object_new_object();
10150 json_ar
= json_object_new_object();
10152 json_object_string_add(json_scode
, "suppressed", "s");
10153 json_object_string_add(json_scode
, "damped", "d");
10154 json_object_string_add(json_scode
, "history", "h");
10155 json_object_string_add(json_scode
, "valid", "*");
10156 json_object_string_add(json_scode
, "best", ">");
10157 json_object_string_add(json_scode
, "multipath", "=");
10158 json_object_string_add(json_scode
, "internal", "i");
10159 json_object_string_add(json_scode
, "ribFailure", "r");
10160 json_object_string_add(json_scode
, "stale", "S");
10161 json_object_string_add(json_scode
, "removed", "R");
10163 json_object_string_add(json_ocode
, "igp", "i");
10164 json_object_string_add(json_ocode
, "egp", "e");
10165 json_object_string_add(json_ocode
, "incomplete", "?");
10172 json_object_string_add(json
, "alert", "no BGP");
10173 vty_out(vty
, "%s\n", json_object_to_json_string(json
));
10174 json_object_free(json
);
10176 vty_out(vty
, "%% No bgp\n");
10180 table
= bgp
->rib
[afi
][safi
];
10182 output_count
= filtered_count
= 0;
10183 subgrp
= peer_subgroup(peer
, afi
, safi
);
10185 if (type
== bgp_show_adj_route_advertised
&& subgrp
10186 && CHECK_FLAG(subgrp
->sflags
, SUBGRP_STATUS_DEFAULT_ORIGINATE
)) {
10188 json_object_int_add(json
, "bgpTableVersion",
10190 json_object_string_add(json
, "bgpLocalRouterId",
10191 inet_ntoa(bgp
->router_id
));
10192 json_object_object_add(json
, "bgpStatusCodes",
10194 json_object_object_add(json
, "bgpOriginCodes",
10196 json_object_string_add(
10197 json
, "bgpOriginatingDefaultNetwork",
10198 (afi
== AFI_IP
) ? "0.0.0.0/0" : "::/0");
10200 vty_out(vty
, "BGP table version is %" PRIu64
10201 ", local router ID is %s, vrf id ",
10202 table
->version
, inet_ntoa(bgp
->router_id
));
10203 if (bgp
->vrf_id
== VRF_UNKNOWN
)
10204 vty_out(vty
, "%s", VRFID_NONE_STR
);
10206 vty_out(vty
, "%u", bgp
->vrf_id
);
10207 vty_out(vty
, "\n");
10208 vty_out(vty
, BGP_SHOW_SCODE_HEADER
);
10209 vty_out(vty
, BGP_SHOW_NCODE_HEADER
);
10210 vty_out(vty
, BGP_SHOW_OCODE_HEADER
);
10212 vty_out(vty
, "Originating default network %s\n\n",
10213 (afi
== AFI_IP
) ? "0.0.0.0/0" : "::/0");
10218 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
)) {
10219 if (type
== bgp_show_adj_route_received
10220 || type
== bgp_show_adj_route_filtered
) {
10221 for (ain
= rn
->adj_in
; ain
; ain
= ain
->next
) {
10222 if (ain
->peer
!= peer
|| !ain
->attr
)
10227 json_object_int_add(
10228 json
, "bgpTableVersion",
10230 json_object_string_add(
10232 "bgpLocalRouterId",
10235 json_object_object_add(
10236 json
, "bgpStatusCodes",
10238 json_object_object_add(
10239 json
, "bgpOriginCodes",
10243 "BGP table version is 0, local router ID is %s, vrf id ",
10246 if (bgp
->vrf_id
== VRF_UNKNOWN
)
10252 vty_out(vty
, "\n");
10254 BGP_SHOW_SCODE_HEADER
);
10256 BGP_SHOW_NCODE_HEADER
);
10258 BGP_SHOW_OCODE_HEADER
);
10264 vty_out(vty
, BGP_SHOW_HEADER
);
10268 bgp_attr_dup(&attr
, ain
->attr
);
10269 route_filtered
= false;
10271 /* Filter prefix using distribute list,
10272 * filter list or prefix list
10274 if ((bgp_input_filter(peer
, &rn
->p
, &attr
, afi
,
10275 safi
)) == FILTER_DENY
)
10276 route_filtered
= true;
10278 /* Filter prefix using route-map */
10279 ret
= bgp_input_modifier(peer
, &rn
->p
, &attr
,
10280 afi
, safi
, rmap_name
);
10282 if (type
== bgp_show_adj_route_filtered
&&
10283 !route_filtered
&& ret
!= RMAP_DENY
) {
10284 bgp_attr_undup(&attr
, ain
->attr
);
10288 if (type
== bgp_show_adj_route_received
&&
10289 (route_filtered
|| ret
== RMAP_DENY
))
10292 route_vty_out_tmp(vty
, &rn
->p
, &attr
, safi
,
10293 use_json
, json_ar
);
10294 bgp_attr_undup(&attr
, ain
->attr
);
10297 } else if (type
== bgp_show_adj_route_advertised
) {
10298 for (adj
= rn
->adj_out
; adj
; adj
= adj
->next
)
10299 SUBGRP_FOREACH_PEER (adj
->subgroup
, paf
) {
10300 if (paf
->peer
!= peer
|| !adj
->attr
)
10305 json_object_int_add(
10309 json_object_string_add(
10311 "bgpLocalRouterId",
10314 json_object_object_add(
10318 json_object_object_add(
10324 "BGP table version is %" PRIu64
10325 ", local router ID is %s, vrf id ",
10338 vty_out(vty
, "\n");
10340 BGP_SHOW_SCODE_HEADER
);
10342 BGP_SHOW_NCODE_HEADER
);
10344 BGP_SHOW_OCODE_HEADER
);
10355 bgp_attr_dup(&attr
, adj
->attr
);
10356 ret
= bgp_output_modifier(
10357 peer
, &rn
->p
, &attr
, afi
, safi
,
10360 if (ret
!= RMAP_DENY
) {
10361 route_vty_out_tmp(vty
, &rn
->p
,
10370 bgp_attr_undup(&attr
, adj
->attr
);
10376 json_object_object_add(json
, "advertisedRoutes", json_ar
);
10377 json_object_int_add(json
, "totalPrefixCounter", output_count
);
10378 json_object_int_add(json
, "filteredPrefixCounter",
10381 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
10382 json
, JSON_C_TO_STRING_PRETTY
));
10383 json_object_free(json
);
10384 } else if (output_count
> 0) {
10385 if (filtered_count
> 0)
10387 "\nTotal number of prefixes %ld (%ld filtered)\n",
10388 output_count
, filtered_count
);
10390 vty_out(vty
, "\nTotal number of prefixes %ld\n",
10395 static int peer_adj_routes(struct vty
*vty
, struct peer
*peer
, afi_t afi
,
10396 safi_t safi
, enum bgp_show_adj_route_type type
,
10397 const char *rmap_name
, uint8_t use_json
)
10399 json_object
*json
= NULL
;
10402 json
= json_object_new_object();
10404 /* labeled-unicast routes live in the unicast table */
10405 if (safi
== SAFI_LABELED_UNICAST
)
10406 safi
= SAFI_UNICAST
;
10408 if (!peer
|| !peer
->afc
[afi
][safi
]) {
10410 json_object_string_add(
10412 "No such neighbor or address family");
10413 vty_out(vty
, "%s\n", json_object_to_json_string(json
));
10414 json_object_free(json
);
10416 vty_out(vty
, "%% No such neighbor or address family\n");
10418 return CMD_WARNING
;
10421 if ((type
== bgp_show_adj_route_received
10422 || type
== bgp_show_adj_route_filtered
)
10423 && !CHECK_FLAG(peer
->af_flags
[afi
][safi
],
10424 PEER_FLAG_SOFT_RECONFIG
)) {
10426 json_object_string_add(
10428 "Inbound soft reconfiguration not enabled");
10429 vty_out(vty
, "%s\n", json_object_to_json_string(json
));
10430 json_object_free(json
);
10433 "%% Inbound soft reconfiguration not enabled\n");
10435 return CMD_WARNING
;
10438 show_adj_route(vty
, peer
, afi
, safi
, type
, rmap_name
, use_json
, json
);
10440 return CMD_SUCCESS
;
10443 DEFUN (show_ip_bgp_instance_neighbor_advertised_route
,
10444 show_ip_bgp_instance_neighbor_advertised_route_cmd
,
10445 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]] "
10446 "neighbors <A.B.C.D|X:X::X:X|WORD> <advertised-routes|received-routes|filtered-routes> [route-map WORD] [json]",
10450 BGP_INSTANCE_HELP_STR
10452 BGP_SAFI_WITH_LABEL_HELP_STR
10453 "Detailed information on TCP and BGP neighbor connections\n"
10454 "Neighbor to display information about\n"
10455 "Neighbor to display information about\n"
10456 "Neighbor on BGP configured interface\n"
10457 "Display the routes advertised to a BGP neighbor\n"
10458 "Display the received routes from neighbor\n"
10459 "Display the filtered routes received from neighbor\n"
10460 "Route-map to modify the attributes\n"
10461 "Name of the route map\n"
10464 afi_t afi
= AFI_IP6
;
10465 safi_t safi
= SAFI_UNICAST
;
10466 char *rmap_name
= NULL
;
10467 char *peerstr
= NULL
;
10468 struct bgp
*bgp
= NULL
;
10470 enum bgp_show_adj_route_type type
= bgp_show_adj_route_advertised
;
10473 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
10476 return CMD_WARNING
;
10478 int uj
= use_json(argc
, argv
);
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 uint8_t 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
, uint8_t 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
;
10629 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
10632 return CMD_WARNING
;
10634 return bgp_show(vty
, bgp
, afi
, safi
,
10635 bgp_show_type_detail
, NULL
, use_json(argc
, argv
));
10638 DEFUN (show_ip_bgp_neighbor_routes
,
10639 show_ip_bgp_neighbor_routes_cmd
,
10640 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]] "
10641 "neighbors <A.B.C.D|X:X::X:X|WORD> <flap-statistics|dampened-routes|routes> [json]",
10645 BGP_INSTANCE_HELP_STR
10647 BGP_SAFI_WITH_LABEL_HELP_STR
10648 "Detailed information on TCP and BGP neighbor connections\n"
10649 "Neighbor to display information about\n"
10650 "Neighbor to display information about\n"
10651 "Neighbor on BGP configured interface\n"
10652 "Display flap statistics of the routes learned from neighbor\n"
10653 "Display the dampened routes received from neighbor\n"
10654 "Display routes learned from neighbor\n"
10657 char *peerstr
= NULL
;
10658 struct bgp
*bgp
= NULL
;
10659 afi_t afi
= AFI_IP6
;
10660 safi_t safi
= SAFI_UNICAST
;
10662 enum bgp_show_type sh_type
= bgp_show_type_neighbor
;
10666 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
10669 return CMD_WARNING
;
10671 int uj
= use_json(argc
, argv
);
10675 /* neighbors <A.B.C.D|X:X::X:X|WORD> */
10676 argv_find(argv
, argc
, "neighbors", &idx
);
10677 peerstr
= argv
[++idx
]->arg
;
10679 peer
= peer_lookup_in_view(vty
, bgp
, peerstr
, uj
);
10681 return CMD_WARNING
;
10683 if (argv_find(argv
, argc
, "flap-statistics", &idx
))
10684 sh_type
= bgp_show_type_flap_neighbor
;
10685 else if (argv_find(argv
, argc
, "dampened-routes", &idx
))
10686 sh_type
= bgp_show_type_damp_neighbor
;
10687 else if (argv_find(argv
, argc
, "routes", &idx
))
10688 sh_type
= bgp_show_type_neighbor
;
10690 return bgp_show_neighbor_route(vty
, peer
, afi
, safi
, sh_type
, uj
);
10693 struct bgp_table
*bgp_distance_table
[AFI_MAX
][SAFI_MAX
];
10695 struct bgp_distance
{
10696 /* Distance value for the IP source prefix. */
10699 /* Name of the access-list to be matched. */
10703 DEFUN (show_bgp_afi_vpn_rd_route
,
10704 show_bgp_afi_vpn_rd_route_cmd
,
10705 "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]",
10709 "Address Family modifier\n"
10710 "Display information for a route distinguisher\n"
10711 "Route Distinguisher\n"
10712 "Network in the BGP routing table to display\n"
10713 "Network in the BGP routing table to display\n"
10717 struct prefix_rd prd
;
10718 afi_t afi
= AFI_MAX
;
10721 if (!argv_find_and_parse_afi(argv
, argc
, &idx
, &afi
)) {
10722 vty_out(vty
, "%% Malformed Address Family\n");
10723 return CMD_WARNING
;
10726 ret
= str2prefix_rd(argv
[5]->arg
, &prd
);
10728 vty_out(vty
, "%% Malformed Route Distinguisher\n");
10729 return CMD_WARNING
;
10732 return bgp_show_route(vty
, NULL
, argv
[6]->arg
, afi
, SAFI_MPLS_VPN
, &prd
,
10733 0, BGP_PATH_ALL
, use_json(argc
, argv
));
10736 static struct bgp_distance
*bgp_distance_new(void)
10738 return XCALLOC(MTYPE_BGP_DISTANCE
, sizeof(struct bgp_distance
));
10741 static void bgp_distance_free(struct bgp_distance
*bdistance
)
10743 XFREE(MTYPE_BGP_DISTANCE
, bdistance
);
10746 static int bgp_distance_set(struct vty
*vty
, const char *distance_str
,
10747 const char *ip_str
, const char *access_list_str
)
10754 struct bgp_node
*rn
;
10755 struct bgp_distance
*bdistance
;
10757 afi
= bgp_node_afi(vty
);
10758 safi
= bgp_node_safi(vty
);
10760 ret
= str2prefix(ip_str
, &p
);
10762 vty_out(vty
, "Malformed prefix\n");
10763 return CMD_WARNING_CONFIG_FAILED
;
10766 distance
= atoi(distance_str
);
10768 /* Get BGP distance node. */
10769 rn
= bgp_node_get(bgp_distance_table
[afi
][safi
], (struct prefix
*)&p
);
10771 bdistance
= rn
->info
;
10772 bgp_unlock_node(rn
);
10774 bdistance
= bgp_distance_new();
10775 rn
->info
= bdistance
;
10778 /* Set distance value. */
10779 bdistance
->distance
= distance
;
10781 /* Reset access-list configuration. */
10782 if (bdistance
->access_list
) {
10783 XFREE(MTYPE_AS_LIST
, bdistance
->access_list
);
10784 bdistance
->access_list
= NULL
;
10786 if (access_list_str
)
10787 bdistance
->access_list
=
10788 XSTRDUP(MTYPE_AS_LIST
, access_list_str
);
10790 return CMD_SUCCESS
;
10793 static int bgp_distance_unset(struct vty
*vty
, const char *distance_str
,
10794 const char *ip_str
, const char *access_list_str
)
10801 struct bgp_node
*rn
;
10802 struct bgp_distance
*bdistance
;
10804 afi
= bgp_node_afi(vty
);
10805 safi
= bgp_node_safi(vty
);
10807 ret
= str2prefix(ip_str
, &p
);
10809 vty_out(vty
, "Malformed prefix\n");
10810 return CMD_WARNING_CONFIG_FAILED
;
10813 rn
= bgp_node_lookup(bgp_distance_table
[afi
][safi
],
10814 (struct prefix
*)&p
);
10816 vty_out(vty
, "Can't find specified prefix\n");
10817 return CMD_WARNING_CONFIG_FAILED
;
10820 bdistance
= rn
->info
;
10821 distance
= atoi(distance_str
);
10823 if (bdistance
->distance
!= distance
) {
10824 vty_out(vty
, "Distance does not match configured\n");
10825 return CMD_WARNING_CONFIG_FAILED
;
10828 if (bdistance
->access_list
)
10829 XFREE(MTYPE_AS_LIST
, bdistance
->access_list
);
10830 bgp_distance_free(bdistance
);
10833 bgp_unlock_node(rn
);
10834 bgp_unlock_node(rn
);
10836 return CMD_SUCCESS
;
10839 /* Apply BGP information to distance method. */
10840 uint8_t bgp_distance_apply(struct prefix
*p
, struct bgp_info
*rinfo
, afi_t afi
,
10841 safi_t safi
, struct bgp
*bgp
)
10843 struct bgp_node
*rn
;
10846 struct bgp_distance
*bdistance
;
10847 struct access_list
*alist
;
10848 struct bgp_static
*bgp_static
;
10853 peer
= rinfo
->peer
;
10855 /* Check source address. */
10856 sockunion2hostprefix(&peer
->su
, &q
);
10857 rn
= bgp_node_match(bgp_distance_table
[afi
][safi
], &q
);
10859 bdistance
= rn
->info
;
10860 bgp_unlock_node(rn
);
10862 if (bdistance
->access_list
) {
10863 alist
= access_list_lookup(afi
, bdistance
->access_list
);
10865 && access_list_apply(alist
, p
) == FILTER_PERMIT
)
10866 return bdistance
->distance
;
10868 return bdistance
->distance
;
10871 /* Backdoor check. */
10872 rn
= bgp_node_lookup(bgp
->route
[afi
][safi
], p
);
10874 bgp_static
= rn
->info
;
10875 bgp_unlock_node(rn
);
10877 if (bgp_static
->backdoor
) {
10878 if (bgp
->distance_local
[afi
][safi
])
10879 return bgp
->distance_local
[afi
][safi
];
10881 return ZEBRA_IBGP_DISTANCE_DEFAULT
;
10885 if (peer
->sort
== BGP_PEER_EBGP
) {
10886 if (bgp
->distance_ebgp
[afi
][safi
])
10887 return bgp
->distance_ebgp
[afi
][safi
];
10888 return ZEBRA_EBGP_DISTANCE_DEFAULT
;
10890 if (bgp
->distance_ibgp
[afi
][safi
])
10891 return bgp
->distance_ibgp
[afi
][safi
];
10892 return ZEBRA_IBGP_DISTANCE_DEFAULT
;
10896 DEFUN (bgp_distance
,
10898 "distance bgp (1-255) (1-255) (1-255)",
10899 "Define an administrative distance\n"
10901 "Distance for routes external to the AS\n"
10902 "Distance for routes internal to the AS\n"
10903 "Distance for local routes\n")
10905 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
10906 int idx_number
= 2;
10907 int idx_number_2
= 3;
10908 int idx_number_3
= 4;
10912 afi
= bgp_node_afi(vty
);
10913 safi
= bgp_node_safi(vty
);
10915 bgp
->distance_ebgp
[afi
][safi
] = atoi(argv
[idx_number
]->arg
);
10916 bgp
->distance_ibgp
[afi
][safi
] = atoi(argv
[idx_number_2
]->arg
);
10917 bgp
->distance_local
[afi
][safi
] = atoi(argv
[idx_number_3
]->arg
);
10918 return CMD_SUCCESS
;
10921 DEFUN (no_bgp_distance
,
10922 no_bgp_distance_cmd
,
10923 "no distance bgp [(1-255) (1-255) (1-255)]",
10925 "Define an administrative distance\n"
10927 "Distance for routes external to the AS\n"
10928 "Distance for routes internal to the AS\n"
10929 "Distance for local routes\n")
10931 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
10935 afi
= bgp_node_afi(vty
);
10936 safi
= bgp_node_safi(vty
);
10938 bgp
->distance_ebgp
[afi
][safi
] = 0;
10939 bgp
->distance_ibgp
[afi
][safi
] = 0;
10940 bgp
->distance_local
[afi
][safi
] = 0;
10941 return CMD_SUCCESS
;
10945 DEFUN (bgp_distance_source
,
10946 bgp_distance_source_cmd
,
10947 "distance (1-255) A.B.C.D/M",
10948 "Define an administrative distance\n"
10949 "Administrative distance\n"
10950 "IP source prefix\n")
10952 int idx_number
= 1;
10953 int idx_ipv4_prefixlen
= 2;
10954 bgp_distance_set(vty
, argv
[idx_number
]->arg
,
10955 argv
[idx_ipv4_prefixlen
]->arg
, NULL
);
10956 return CMD_SUCCESS
;
10959 DEFUN (no_bgp_distance_source
,
10960 no_bgp_distance_source_cmd
,
10961 "no distance (1-255) A.B.C.D/M",
10963 "Define an administrative distance\n"
10964 "Administrative distance\n"
10965 "IP source prefix\n")
10967 int idx_number
= 2;
10968 int idx_ipv4_prefixlen
= 3;
10969 bgp_distance_unset(vty
, argv
[idx_number
]->arg
,
10970 argv
[idx_ipv4_prefixlen
]->arg
, NULL
);
10971 return CMD_SUCCESS
;
10974 DEFUN (bgp_distance_source_access_list
,
10975 bgp_distance_source_access_list_cmd
,
10976 "distance (1-255) A.B.C.D/M WORD",
10977 "Define an administrative distance\n"
10978 "Administrative distance\n"
10979 "IP source prefix\n"
10980 "Access list name\n")
10982 int idx_number
= 1;
10983 int idx_ipv4_prefixlen
= 2;
10985 bgp_distance_set(vty
, argv
[idx_number
]->arg
,
10986 argv
[idx_ipv4_prefixlen
]->arg
, argv
[idx_word
]->arg
);
10987 return CMD_SUCCESS
;
10990 DEFUN (no_bgp_distance_source_access_list
,
10991 no_bgp_distance_source_access_list_cmd
,
10992 "no distance (1-255) A.B.C.D/M WORD",
10994 "Define an administrative distance\n"
10995 "Administrative distance\n"
10996 "IP source prefix\n"
10997 "Access list name\n")
10999 int idx_number
= 2;
11000 int idx_ipv4_prefixlen
= 3;
11002 bgp_distance_unset(vty
, argv
[idx_number
]->arg
,
11003 argv
[idx_ipv4_prefixlen
]->arg
, argv
[idx_word
]->arg
);
11004 return CMD_SUCCESS
;
11007 DEFUN (ipv6_bgp_distance_source
,
11008 ipv6_bgp_distance_source_cmd
,
11009 "distance (1-255) X:X::X:X/M",
11010 "Define an administrative distance\n"
11011 "Administrative distance\n"
11012 "IP source prefix\n")
11014 bgp_distance_set(vty
, argv
[1]->arg
, argv
[2]->arg
, NULL
);
11015 return CMD_SUCCESS
;
11018 DEFUN (no_ipv6_bgp_distance_source
,
11019 no_ipv6_bgp_distance_source_cmd
,
11020 "no distance (1-255) X:X::X:X/M",
11022 "Define an administrative distance\n"
11023 "Administrative distance\n"
11024 "IP source prefix\n")
11026 bgp_distance_unset(vty
, argv
[2]->arg
, argv
[3]->arg
, NULL
);
11027 return CMD_SUCCESS
;
11030 DEFUN (ipv6_bgp_distance_source_access_list
,
11031 ipv6_bgp_distance_source_access_list_cmd
,
11032 "distance (1-255) X:X::X:X/M WORD",
11033 "Define an administrative distance\n"
11034 "Administrative distance\n"
11035 "IP source prefix\n"
11036 "Access list name\n")
11038 bgp_distance_set(vty
, argv
[1]->arg
, argv
[2]->arg
, argv
[3]->arg
);
11039 return CMD_SUCCESS
;
11042 DEFUN (no_ipv6_bgp_distance_source_access_list
,
11043 no_ipv6_bgp_distance_source_access_list_cmd
,
11044 "no distance (1-255) X:X::X:X/M WORD",
11046 "Define an administrative distance\n"
11047 "Administrative distance\n"
11048 "IP source prefix\n"
11049 "Access list name\n")
11051 bgp_distance_unset(vty
, argv
[2]->arg
, argv
[3]->arg
, argv
[4]->arg
);
11052 return CMD_SUCCESS
;
11055 DEFUN (bgp_damp_set
,
11057 "bgp dampening [(1-45) [(1-20000) (1-20000) (1-255)]]",
11058 "BGP Specific commands\n"
11059 "Enable route-flap dampening\n"
11060 "Half-life time for the penalty\n"
11061 "Value to start reusing a route\n"
11062 "Value to start suppressing a route\n"
11063 "Maximum duration to suppress a stable route\n")
11065 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
11066 int idx_half_life
= 2;
11068 int idx_suppress
= 4;
11069 int idx_max_suppress
= 5;
11070 int half
= DEFAULT_HALF_LIFE
* 60;
11071 int reuse
= DEFAULT_REUSE
;
11072 int suppress
= DEFAULT_SUPPRESS
;
11073 int max
= 4 * half
;
11076 half
= atoi(argv
[idx_half_life
]->arg
) * 60;
11077 reuse
= atoi(argv
[idx_reuse
]->arg
);
11078 suppress
= atoi(argv
[idx_suppress
]->arg
);
11079 max
= atoi(argv
[idx_max_suppress
]->arg
) * 60;
11080 } else if (argc
== 3) {
11081 half
= atoi(argv
[idx_half_life
]->arg
) * 60;
11085 if (suppress
< reuse
) {
11087 "Suppress value cannot be less than reuse value \n");
11091 return bgp_damp_enable(bgp
, bgp_node_afi(vty
), bgp_node_safi(vty
), half
,
11092 reuse
, suppress
, max
);
11095 DEFUN (bgp_damp_unset
,
11096 bgp_damp_unset_cmd
,
11097 "no bgp dampening [(1-45) [(1-20000) (1-20000) (1-255)]]",
11099 "BGP Specific commands\n"
11100 "Enable route-flap dampening\n"
11101 "Half-life time for the penalty\n"
11102 "Value to start reusing a route\n"
11103 "Value to start suppressing a route\n"
11104 "Maximum duration to suppress a stable route\n")
11106 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
11107 return bgp_damp_disable(bgp
, bgp_node_afi(vty
), bgp_node_safi(vty
));
11110 /* Display specified route of BGP table. */
11111 static int bgp_clear_damp_route(struct vty
*vty
, const char *view_name
,
11112 const char *ip_str
, afi_t afi
, safi_t safi
,
11113 struct prefix_rd
*prd
, int prefix_check
)
11116 struct prefix match
;
11117 struct bgp_node
*rn
;
11118 struct bgp_node
*rm
;
11119 struct bgp_info
*ri
;
11120 struct bgp_info
*ri_temp
;
11122 struct bgp_table
*table
;
11124 /* BGP structure lookup. */
11126 bgp
= bgp_lookup_by_name(view_name
);
11128 vty_out(vty
, "%% Can't find BGP instance %s\n",
11130 return CMD_WARNING
;
11133 bgp
= bgp_get_default();
11135 vty_out(vty
, "%% No BGP process is configured\n");
11136 return CMD_WARNING
;
11140 /* Check IP address argument. */
11141 ret
= str2prefix(ip_str
, &match
);
11143 vty_out(vty
, "%% address is malformed\n");
11144 return CMD_WARNING
;
11147 match
.family
= afi2family(afi
);
11149 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_ENCAP
)
11150 || (safi
== SAFI_EVPN
)) {
11151 for (rn
= bgp_table_top(bgp
->rib
[AFI_IP
][safi
]); rn
;
11152 rn
= bgp_route_next(rn
)) {
11153 if (prd
&& memcmp(rn
->p
.u
.val
, prd
->val
, 8) != 0)
11155 if ((table
= rn
->info
) == NULL
)
11157 if ((rm
= bgp_node_match(table
, &match
)) == NULL
)
11161 || rm
->p
.prefixlen
== match
.prefixlen
) {
11164 if (ri
->extra
&& ri
->extra
->damp_info
) {
11165 ri_temp
= ri
->next
;
11166 bgp_damp_info_free(
11167 ri
->extra
->damp_info
,
11175 bgp_unlock_node(rm
);
11178 if ((rn
= bgp_node_match(bgp
->rib
[afi
][safi
], &match
))
11181 || rn
->p
.prefixlen
== match
.prefixlen
) {
11184 if (ri
->extra
&& ri
->extra
->damp_info
) {
11185 ri_temp
= ri
->next
;
11186 bgp_damp_info_free(
11187 ri
->extra
->damp_info
,
11195 bgp_unlock_node(rn
);
11199 return CMD_SUCCESS
;
11202 DEFUN (clear_ip_bgp_dampening
,
11203 clear_ip_bgp_dampening_cmd
,
11204 "clear ip bgp dampening",
11208 "Clear route flap dampening information\n")
11210 bgp_damp_info_clean();
11211 return CMD_SUCCESS
;
11214 DEFUN (clear_ip_bgp_dampening_prefix
,
11215 clear_ip_bgp_dampening_prefix_cmd
,
11216 "clear ip bgp dampening A.B.C.D/M",
11220 "Clear route flap dampening information\n"
11223 int idx_ipv4_prefixlen
= 4;
11224 return bgp_clear_damp_route(vty
, NULL
, argv
[idx_ipv4_prefixlen
]->arg
,
11225 AFI_IP
, SAFI_UNICAST
, NULL
, 1);
11228 DEFUN (clear_ip_bgp_dampening_address
,
11229 clear_ip_bgp_dampening_address_cmd
,
11230 "clear ip bgp dampening A.B.C.D",
11234 "Clear route flap dampening information\n"
11235 "Network to clear damping information\n")
11238 return bgp_clear_damp_route(vty
, NULL
, argv
[idx_ipv4
]->arg
, AFI_IP
,
11239 SAFI_UNICAST
, NULL
, 0);
11242 DEFUN (clear_ip_bgp_dampening_address_mask
,
11243 clear_ip_bgp_dampening_address_mask_cmd
,
11244 "clear ip bgp dampening A.B.C.D A.B.C.D",
11248 "Clear route flap dampening information\n"
11249 "Network to clear damping information\n"
11253 int idx_ipv4_2
= 5;
11255 char prefix_str
[BUFSIZ
];
11257 ret
= netmask_str2prefix_str(argv
[idx_ipv4
]->arg
, argv
[idx_ipv4_2
]->arg
,
11260 vty_out(vty
, "%% Inconsistent address and mask\n");
11261 return CMD_WARNING
;
11264 return bgp_clear_damp_route(vty
, NULL
, prefix_str
, AFI_IP
, SAFI_UNICAST
,
11268 /* also used for encap safi */
11269 static void bgp_config_write_network_vpn(struct vty
*vty
, struct bgp
*bgp
,
11270 afi_t afi
, safi_t safi
)
11272 struct bgp_node
*prn
;
11273 struct bgp_node
*rn
;
11274 struct bgp_table
*table
;
11276 struct prefix_rd
*prd
;
11277 struct bgp_static
*bgp_static
;
11278 mpls_label_t label
;
11279 char buf
[SU_ADDRSTRLEN
];
11280 char rdbuf
[RD_ADDRSTRLEN
];
11282 /* Network configuration. */
11283 for (prn
= bgp_table_top(bgp
->route
[afi
][safi
]); prn
;
11284 prn
= bgp_route_next(prn
)) {
11285 if ((table
= prn
->info
) == NULL
)
11288 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
)) {
11289 if ((bgp_static
= rn
->info
) == NULL
)
11293 prd
= (struct prefix_rd
*)&prn
->p
;
11295 /* "network" configuration display. */
11296 prefix_rd2str(prd
, rdbuf
, sizeof(rdbuf
));
11297 label
= decode_label(&bgp_static
->label
);
11299 vty_out(vty
, " network %s/%d rd %s",
11300 inet_ntop(p
->family
, &p
->u
.prefix
, buf
,
11302 p
->prefixlen
, rdbuf
);
11303 if (safi
== SAFI_MPLS_VPN
)
11304 vty_out(vty
, " label %u", label
);
11306 if (bgp_static
->rmap
.name
)
11307 vty_out(vty
, " route-map %s",
11308 bgp_static
->rmap
.name
);
11310 if (bgp_static
->backdoor
)
11311 vty_out(vty
, " backdoor");
11313 vty_out(vty
, "\n");
11318 static void bgp_config_write_network_evpn(struct vty
*vty
, struct bgp
*bgp
,
11319 afi_t afi
, safi_t safi
)
11321 struct bgp_node
*prn
;
11322 struct bgp_node
*rn
;
11323 struct bgp_table
*table
;
11325 struct prefix_rd
*prd
;
11326 struct bgp_static
*bgp_static
;
11327 char buf
[PREFIX_STRLEN
* 2];
11328 char buf2
[SU_ADDRSTRLEN
];
11329 char rdbuf
[RD_ADDRSTRLEN
];
11331 /* Network configuration. */
11332 for (prn
= bgp_table_top(bgp
->route
[afi
][safi
]); prn
;
11333 prn
= bgp_route_next(prn
)) {
11334 if ((table
= prn
->info
) == NULL
)
11337 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
)) {
11338 if ((bgp_static
= rn
->info
) == NULL
)
11341 char *macrouter
= NULL
;
11344 if (bgp_static
->router_mac
)
11345 macrouter
= prefix_mac2str(
11346 bgp_static
->router_mac
, NULL
, 0);
11347 if (bgp_static
->eth_s_id
)
11348 esi
= esi2str(bgp_static
->eth_s_id
);
11350 prd
= (struct prefix_rd
*)&prn
->p
;
11352 /* "network" configuration display. */
11353 prefix_rd2str(prd
, rdbuf
, sizeof(rdbuf
));
11354 if (p
->u
.prefix_evpn
.route_type
== 5) {
11355 char local_buf
[PREFIX_STRLEN
];
11356 uint8_t family
= is_evpn_prefix_ipaddr_v4((
11357 struct prefix_evpn
*)p
)
11361 &p
->u
.prefix_evpn
.prefix_addr
.ip
.ip
.addr
,
11362 local_buf
, PREFIX_STRLEN
);
11363 sprintf(buf
, "%s/%u", local_buf
,
11364 p
->u
.prefix_evpn
.prefix_addr
.ip_prefix_length
);
11366 prefix2str(p
, buf
, sizeof(buf
));
11369 if (bgp_static
->gatewayIp
.family
== AF_INET
11370 || bgp_static
->gatewayIp
.family
== AF_INET6
)
11371 inet_ntop(bgp_static
->gatewayIp
.family
,
11372 &bgp_static
->gatewayIp
.u
.prefix
, buf2
,
11375 " network %s rd %s ethtag %u label %u esi %s gwip %s routermac %s\n",
11377 p
->u
.prefix_evpn
.prefix_addr
.eth_tag
,
11378 decode_label(&bgp_static
->label
), esi
, buf2
,
11382 XFREE(MTYPE_TMP
, macrouter
);
11384 XFREE(MTYPE_TMP
, esi
);
11389 /* Configuration of static route announcement and aggregate
11391 void bgp_config_write_network(struct vty
*vty
, struct bgp
*bgp
, afi_t afi
,
11394 struct bgp_node
*rn
;
11396 struct bgp_static
*bgp_static
;
11397 struct bgp_aggregate
*bgp_aggregate
;
11398 char buf
[SU_ADDRSTRLEN
];
11400 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_ENCAP
)) {
11401 bgp_config_write_network_vpn(vty
, bgp
, afi
, safi
);
11405 if (afi
== AFI_L2VPN
&& safi
== SAFI_EVPN
) {
11406 bgp_config_write_network_evpn(vty
, bgp
, afi
, safi
);
11410 /* Network configuration. */
11411 for (rn
= bgp_table_top(bgp
->route
[afi
][safi
]); rn
;
11412 rn
= bgp_route_next(rn
)) {
11413 if ((bgp_static
= rn
->info
) == NULL
)
11418 /* "network" configuration display. */
11419 if (bgp_option_check(BGP_OPT_CONFIG_CISCO
) && afi
== AFI_IP
) {
11420 uint32_t destination
;
11421 struct in_addr netmask
;
11423 destination
= ntohl(p
->u
.prefix4
.s_addr
);
11424 masklen2ip(p
->prefixlen
, &netmask
);
11425 vty_out(vty
, " network %s",
11426 inet_ntop(p
->family
, &p
->u
.prefix
, buf
,
11429 if ((IN_CLASSC(destination
) && p
->prefixlen
== 24)
11430 || (IN_CLASSB(destination
) && p
->prefixlen
== 16)
11431 || (IN_CLASSA(destination
) && p
->prefixlen
== 8)
11432 || p
->u
.prefix4
.s_addr
== 0) {
11433 /* Natural mask is not display. */
11435 vty_out(vty
, " mask %s", inet_ntoa(netmask
));
11437 vty_out(vty
, " network %s/%d",
11438 inet_ntop(p
->family
, &p
->u
.prefix
, buf
,
11443 if (bgp_static
->label_index
!= BGP_INVALID_LABEL_INDEX
)
11444 vty_out(vty
, " label-index %u",
11445 bgp_static
->label_index
);
11447 if (bgp_static
->rmap
.name
)
11448 vty_out(vty
, " route-map %s", bgp_static
->rmap
.name
);
11450 if (bgp_static
->backdoor
)
11451 vty_out(vty
, " backdoor");
11453 vty_out(vty
, "\n");
11456 /* Aggregate-address configuration. */
11457 for (rn
= bgp_table_top(bgp
->aggregate
[afi
][safi
]); rn
;
11458 rn
= bgp_route_next(rn
)) {
11459 if ((bgp_aggregate
= rn
->info
) == NULL
)
11464 if (bgp_option_check(BGP_OPT_CONFIG_CISCO
) && afi
== AFI_IP
) {
11465 struct in_addr netmask
;
11467 masklen2ip(p
->prefixlen
, &netmask
);
11468 vty_out(vty
, " aggregate-address %s %s",
11469 inet_ntop(p
->family
, &p
->u
.prefix
, buf
,
11471 inet_ntoa(netmask
));
11473 vty_out(vty
, " aggregate-address %s/%d",
11474 inet_ntop(p
->family
, &p
->u
.prefix
, buf
,
11479 if (bgp_aggregate
->as_set
)
11480 vty_out(vty
, " as-set");
11482 if (bgp_aggregate
->summary_only
)
11483 vty_out(vty
, " summary-only");
11485 vty_out(vty
, "\n");
11489 void bgp_config_write_distance(struct vty
*vty
, struct bgp
*bgp
, afi_t afi
,
11492 struct bgp_node
*rn
;
11493 struct bgp_distance
*bdistance
;
11495 /* Distance configuration. */
11496 if (bgp
->distance_ebgp
[afi
][safi
] && bgp
->distance_ibgp
[afi
][safi
]
11497 && bgp
->distance_local
[afi
][safi
]
11498 && (bgp
->distance_ebgp
[afi
][safi
] != ZEBRA_EBGP_DISTANCE_DEFAULT
11499 || bgp
->distance_ibgp
[afi
][safi
] != ZEBRA_IBGP_DISTANCE_DEFAULT
11500 || bgp
->distance_local
[afi
][safi
]
11501 != ZEBRA_IBGP_DISTANCE_DEFAULT
)) {
11502 vty_out(vty
, " distance bgp %d %d %d\n",
11503 bgp
->distance_ebgp
[afi
][safi
],
11504 bgp
->distance_ibgp
[afi
][safi
],
11505 bgp
->distance_local
[afi
][safi
]);
11508 for (rn
= bgp_table_top(bgp_distance_table
[afi
][safi
]); rn
;
11509 rn
= bgp_route_next(rn
))
11510 if ((bdistance
= rn
->info
) != NULL
) {
11511 char buf
[PREFIX_STRLEN
];
11513 vty_out(vty
, " distance %d %s %s\n",
11514 bdistance
->distance
,
11515 prefix2str(&rn
->p
, buf
, sizeof(buf
)),
11516 bdistance
->access_list
? bdistance
->access_list
11521 /* Allocate routing table structure and install commands. */
11522 void bgp_route_init(void)
11527 /* Init BGP distance table. */
11528 FOREACH_AFI_SAFI (afi
, safi
)
11529 bgp_distance_table
[afi
][safi
] = bgp_table_init(NULL
, afi
, safi
);
11531 /* IPv4 BGP commands. */
11532 install_element(BGP_NODE
, &bgp_table_map_cmd
);
11533 install_element(BGP_NODE
, &bgp_network_cmd
);
11534 install_element(BGP_NODE
, &no_bgp_table_map_cmd
);
11536 install_element(BGP_NODE
, &aggregate_address_cmd
);
11537 install_element(BGP_NODE
, &aggregate_address_mask_cmd
);
11538 install_element(BGP_NODE
, &no_aggregate_address_cmd
);
11539 install_element(BGP_NODE
, &no_aggregate_address_mask_cmd
);
11541 /* IPv4 unicast configuration. */
11542 install_element(BGP_IPV4_NODE
, &bgp_table_map_cmd
);
11543 install_element(BGP_IPV4_NODE
, &bgp_network_cmd
);
11544 install_element(BGP_IPV4_NODE
, &no_bgp_table_map_cmd
);
11546 install_element(BGP_IPV4_NODE
, &aggregate_address_cmd
);
11547 install_element(BGP_IPV4_NODE
, &aggregate_address_mask_cmd
);
11548 install_element(BGP_IPV4_NODE
, &no_aggregate_address_cmd
);
11549 install_element(BGP_IPV4_NODE
, &no_aggregate_address_mask_cmd
);
11551 /* IPv4 multicast configuration. */
11552 install_element(BGP_IPV4M_NODE
, &bgp_table_map_cmd
);
11553 install_element(BGP_IPV4M_NODE
, &bgp_network_cmd
);
11554 install_element(BGP_IPV4M_NODE
, &no_bgp_table_map_cmd
);
11555 install_element(BGP_IPV4M_NODE
, &aggregate_address_cmd
);
11556 install_element(BGP_IPV4M_NODE
, &aggregate_address_mask_cmd
);
11557 install_element(BGP_IPV4M_NODE
, &no_aggregate_address_cmd
);
11558 install_element(BGP_IPV4M_NODE
, &no_aggregate_address_mask_cmd
);
11560 /* IPv4 labeled-unicast configuration. */
11561 install_element(VIEW_NODE
, &show_ip_bgp_instance_all_cmd
);
11562 install_element(VIEW_NODE
, &show_ip_bgp_cmd
);
11563 install_element(VIEW_NODE
, &show_ip_bgp_json_cmd
);
11564 install_element(VIEW_NODE
, &show_ip_bgp_route_cmd
);
11565 install_element(VIEW_NODE
, &show_ip_bgp_regexp_cmd
);
11567 install_element(VIEW_NODE
,
11568 &show_ip_bgp_instance_neighbor_advertised_route_cmd
);
11569 install_element(VIEW_NODE
, &show_ip_bgp_neighbor_routes_cmd
);
11570 install_element(VIEW_NODE
,
11571 &show_ip_bgp_neighbor_received_prefix_filter_cmd
);
11572 #ifdef KEEP_OLD_VPN_COMMANDS
11573 install_element(VIEW_NODE
, &show_ip_bgp_vpn_all_route_prefix_cmd
);
11574 #endif /* KEEP_OLD_VPN_COMMANDS */
11575 install_element(VIEW_NODE
, &show_bgp_afi_vpn_rd_route_cmd
);
11576 install_element(VIEW_NODE
,
11577 &show_ip_bgp_l2vpn_evpn_all_route_prefix_cmd
);
11579 /* BGP dampening clear commands */
11580 install_element(ENABLE_NODE
, &clear_ip_bgp_dampening_cmd
);
11581 install_element(ENABLE_NODE
, &clear_ip_bgp_dampening_prefix_cmd
);
11583 install_element(ENABLE_NODE
, &clear_ip_bgp_dampening_address_cmd
);
11584 install_element(ENABLE_NODE
, &clear_ip_bgp_dampening_address_mask_cmd
);
11587 install_element(ENABLE_NODE
,
11588 &show_ip_bgp_instance_neighbor_prefix_counts_cmd
);
11589 #ifdef KEEP_OLD_VPN_COMMANDS
11590 install_element(ENABLE_NODE
,
11591 &show_ip_bgp_vpn_neighbor_prefix_counts_cmd
);
11592 #endif /* KEEP_OLD_VPN_COMMANDS */
11594 /* New config IPv6 BGP commands. */
11595 install_element(BGP_IPV6_NODE
, &bgp_table_map_cmd
);
11596 install_element(BGP_IPV6_NODE
, &ipv6_bgp_network_cmd
);
11597 install_element(BGP_IPV6_NODE
, &no_bgp_table_map_cmd
);
11599 install_element(BGP_IPV6_NODE
, &ipv6_aggregate_address_cmd
);
11600 install_element(BGP_IPV6_NODE
, &no_ipv6_aggregate_address_cmd
);
11602 install_element(BGP_IPV6M_NODE
, &ipv6_bgp_network_cmd
);
11604 install_element(BGP_NODE
, &bgp_distance_cmd
);
11605 install_element(BGP_NODE
, &no_bgp_distance_cmd
);
11606 install_element(BGP_NODE
, &bgp_distance_source_cmd
);
11607 install_element(BGP_NODE
, &no_bgp_distance_source_cmd
);
11608 install_element(BGP_NODE
, &bgp_distance_source_access_list_cmd
);
11609 install_element(BGP_NODE
, &no_bgp_distance_source_access_list_cmd
);
11610 install_element(BGP_IPV4_NODE
, &bgp_distance_cmd
);
11611 install_element(BGP_IPV4_NODE
, &no_bgp_distance_cmd
);
11612 install_element(BGP_IPV4_NODE
, &bgp_distance_source_cmd
);
11613 install_element(BGP_IPV4_NODE
, &no_bgp_distance_source_cmd
);
11614 install_element(BGP_IPV4_NODE
, &bgp_distance_source_access_list_cmd
);
11615 install_element(BGP_IPV4_NODE
, &no_bgp_distance_source_access_list_cmd
);
11616 install_element(BGP_IPV4M_NODE
, &bgp_distance_cmd
);
11617 install_element(BGP_IPV4M_NODE
, &no_bgp_distance_cmd
);
11618 install_element(BGP_IPV4M_NODE
, &bgp_distance_source_cmd
);
11619 install_element(BGP_IPV4M_NODE
, &no_bgp_distance_source_cmd
);
11620 install_element(BGP_IPV4M_NODE
, &bgp_distance_source_access_list_cmd
);
11621 install_element(BGP_IPV4M_NODE
,
11622 &no_bgp_distance_source_access_list_cmd
);
11623 install_element(BGP_IPV6_NODE
, &bgp_distance_cmd
);
11624 install_element(BGP_IPV6_NODE
, &no_bgp_distance_cmd
);
11625 install_element(BGP_IPV6_NODE
, &ipv6_bgp_distance_source_cmd
);
11626 install_element(BGP_IPV6_NODE
, &no_ipv6_bgp_distance_source_cmd
);
11627 install_element(BGP_IPV6_NODE
,
11628 &ipv6_bgp_distance_source_access_list_cmd
);
11629 install_element(BGP_IPV6_NODE
,
11630 &no_ipv6_bgp_distance_source_access_list_cmd
);
11631 install_element(BGP_IPV6M_NODE
, &bgp_distance_cmd
);
11632 install_element(BGP_IPV6M_NODE
, &no_bgp_distance_cmd
);
11633 install_element(BGP_IPV6M_NODE
, &ipv6_bgp_distance_source_cmd
);
11634 install_element(BGP_IPV6M_NODE
, &no_ipv6_bgp_distance_source_cmd
);
11635 install_element(BGP_IPV6M_NODE
,
11636 &ipv6_bgp_distance_source_access_list_cmd
);
11637 install_element(BGP_IPV6M_NODE
,
11638 &no_ipv6_bgp_distance_source_access_list_cmd
);
11640 install_element(BGP_NODE
, &bgp_damp_set_cmd
);
11641 install_element(BGP_NODE
, &bgp_damp_unset_cmd
);
11642 install_element(BGP_IPV4_NODE
, &bgp_damp_set_cmd
);
11643 install_element(BGP_IPV4_NODE
, &bgp_damp_unset_cmd
);
11645 /* IPv4 Multicast Mode */
11646 install_element(BGP_IPV4M_NODE
, &bgp_damp_set_cmd
);
11647 install_element(BGP_IPV4M_NODE
, &bgp_damp_unset_cmd
);
11649 /* Large Communities */
11650 install_element(VIEW_NODE
, &show_ip_bgp_large_community_list_cmd
);
11651 install_element(VIEW_NODE
, &show_ip_bgp_large_community_cmd
);
11653 /* show bgp ipv4 flowspec detailed */
11654 install_element(VIEW_NODE
, &show_ip_bgp_flowspec_routes_detailed_cmd
);
11658 void bgp_route_finish(void)
11663 FOREACH_AFI_SAFI (afi
, safi
) {
11664 bgp_table_unlock(bgp_distance_table
[afi
][safi
]);
11665 bgp_distance_table
[afi
][safi
] = NULL
;