1 /* BGP routing information
2 * Copyright (C) 1996, 97, 98, 99 Kunihiro Ishiguro
3 * Copyright (C) 2016 Job Snijders <job@instituut.net>
5 * This file is part of GNU Zebra.
7 * GNU Zebra is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; either version 2, or (at your option) any
12 * GNU Zebra is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
17 * You should have received a copy of the GNU General Public License along
18 * with this program; see the file COPYING; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
34 #include "sockunion.h"
37 #include "workqueue.h"
41 #include "lib_errors.h"
43 #include "bgpd/bgpd.h"
44 #include "bgpd/bgp_table.h"
45 #include "bgpd/bgp_route.h"
46 #include "bgpd/bgp_attr.h"
47 #include "bgpd/bgp_debug.h"
48 #include "bgpd/bgp_errors.h"
49 #include "bgpd/bgp_aspath.h"
50 #include "bgpd/bgp_regex.h"
51 #include "bgpd/bgp_community.h"
52 #include "bgpd/bgp_ecommunity.h"
53 #include "bgpd/bgp_lcommunity.h"
54 #include "bgpd/bgp_clist.h"
55 #include "bgpd/bgp_packet.h"
56 #include "bgpd/bgp_filter.h"
57 #include "bgpd/bgp_fsm.h"
58 #include "bgpd/bgp_mplsvpn.h"
59 #include "bgpd/bgp_nexthop.h"
60 #include "bgpd/bgp_damp.h"
61 #include "bgpd/bgp_advertise.h"
62 #include "bgpd/bgp_zebra.h"
63 #include "bgpd/bgp_vty.h"
64 #include "bgpd/bgp_mpath.h"
65 #include "bgpd/bgp_nht.h"
66 #include "bgpd/bgp_updgrp.h"
67 #include "bgpd/bgp_label.h"
70 #include "bgpd/rfapi/rfapi_backend.h"
71 #include "bgpd/rfapi/vnc_import_bgp.h"
72 #include "bgpd/rfapi/vnc_export_bgp.h"
74 #include "bgpd/bgp_encap_types.h"
75 #include "bgpd/bgp_encap_tlv.h"
76 #include "bgpd/bgp_evpn.h"
77 #include "bgpd/bgp_evpn_vty.h"
78 #include "bgpd/bgp_flowspec.h"
79 #include "bgpd/bgp_flowspec_util.h"
80 #include "bgpd/bgp_pbr.h"
82 #ifndef VTYSH_EXTRACT_PL
83 #include "bgpd/bgp_route_clippy.c"
86 /* Extern from bgp_dump.c */
87 extern const char *bgp_origin_str
[];
88 extern const char *bgp_origin_long_str
[];
91 #define PMSI_TNLTYPE_STR_NO_INFO "No info"
92 #define PMSI_TNLTYPE_STR_DEFAULT PMSI_TNLTYPE_STR_NO_INFO
93 static const struct message bgp_pmsi_tnltype_str
[] = {
94 {PMSI_TNLTYPE_NO_INFO
, PMSI_TNLTYPE_STR_NO_INFO
},
95 {PMSI_TNLTYPE_RSVP_TE_P2MP
, "RSVP-TE P2MP"},
96 {PMSI_TNLTYPE_MLDP_P2MP
, "mLDP P2MP"},
97 {PMSI_TNLTYPE_PIM_SSM
, "PIM-SSM"},
98 {PMSI_TNLTYPE_PIM_SM
, "PIM-SM"},
99 {PMSI_TNLTYPE_PIM_BIDIR
, "PIM-BIDIR"},
100 {PMSI_TNLTYPE_INGR_REPL
, "Ingress Replication"},
101 {PMSI_TNLTYPE_MLDP_MP2MP
, "mLDP MP2MP"},
105 #define VRFID_NONE_STR "-"
107 struct bgp_node
*bgp_afi_node_get(struct bgp_table
*table
, afi_t afi
,
108 safi_t safi
, struct prefix
*p
,
109 struct prefix_rd
*prd
)
112 struct bgp_node
*prn
= NULL
;
118 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_ENCAP
)
119 || (safi
== SAFI_EVPN
)) {
120 prn
= bgp_node_get(table
, (struct prefix
*)prd
);
122 if (prn
->info
== NULL
)
123 prn
->info
= bgp_table_init(table
->bgp
, afi
, safi
);
125 bgp_unlock_node(prn
);
129 rn
= bgp_node_get(table
, p
);
131 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_ENCAP
)
132 || (safi
== SAFI_EVPN
))
138 struct bgp_node
*bgp_afi_node_lookup(struct bgp_table
*table
, afi_t afi
,
139 safi_t safi
, struct prefix
*p
,
140 struct prefix_rd
*prd
)
143 struct bgp_node
*prn
= NULL
;
148 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_ENCAP
)
149 || (safi
== SAFI_EVPN
)) {
150 prn
= bgp_node_lookup(table
, (struct prefix
*)prd
);
154 if (prn
->info
== NULL
) {
155 bgp_unlock_node(prn
);
162 rn
= bgp_node_lookup(table
, p
);
167 /* Allocate bgp_info_extra */
168 static struct bgp_info_extra
*bgp_info_extra_new(void)
170 struct bgp_info_extra
*new;
171 new = XCALLOC(MTYPE_BGP_ROUTE_EXTRA
, sizeof(struct bgp_info_extra
));
172 new->label
[0] = MPLS_INVALID_LABEL
;
177 static void bgp_info_extra_free(struct bgp_info_extra
**extra
)
179 struct bgp_info_extra
*e
;
181 if (!extra
|| !*extra
)
186 bgp_damp_info_free(e
->damp_info
, 0);
190 struct bgp_info
*bi
= (struct bgp_info
*)e
->parent
;
193 /* FIXME: since multiple e may have the same e->parent
194 * and e->parent->net is holding a refcount for each
195 * of them, we need to do some fudging here.
197 * WARNING: if bi->net->lock drops to 0, bi may be
198 * freed as well (because bi->net was holding the
199 * last reference to bi) => write after free!
203 bi
= bgp_info_lock(bi
);
204 refcount
= bi
->net
->lock
- 1;
205 bgp_unlock_node((struct bgp_node
*)bi
->net
);
210 bgp_info_unlock(e
->parent
);
215 bgp_unlock(e
->bgp_orig
);
217 if ((*extra
)->bgp_fs_pbr
)
218 list_delete_and_null(&((*extra
)->bgp_fs_pbr
));
219 XFREE(MTYPE_BGP_ROUTE_EXTRA
, *extra
);
224 /* Get bgp_info extra information for the given bgp_info, lazy allocated
227 struct bgp_info_extra
*bgp_info_extra_get(struct bgp_info
*ri
)
230 ri
->extra
= bgp_info_extra_new();
234 /* Allocate new bgp info structure. */
235 struct bgp_info
*bgp_info_new(void)
237 return XCALLOC(MTYPE_BGP_ROUTE
, sizeof(struct bgp_info
));
240 /* Free bgp route information. */
241 static void bgp_info_free(struct bgp_info
*binfo
)
244 bgp_attr_unintern(&binfo
->attr
);
246 bgp_unlink_nexthop(binfo
);
247 bgp_info_extra_free(&binfo
->extra
);
248 bgp_info_mpath_free(&binfo
->mpath
);
250 peer_unlock(binfo
->peer
); /* bgp_info peer reference */
252 XFREE(MTYPE_BGP_ROUTE
, binfo
);
255 struct bgp_info
*bgp_info_lock(struct bgp_info
*binfo
)
261 struct bgp_info
*bgp_info_unlock(struct bgp_info
*binfo
)
263 assert(binfo
&& binfo
->lock
> 0);
266 if (binfo
->lock
== 0) {
268 zlog_debug ("%s: unlocked and freeing", __func__
);
269 zlog_backtrace (LOG_DEBUG
);
271 bgp_info_free(binfo
);
276 if (binfo
->lock
== 1)
278 zlog_debug ("%s: unlocked to 1", __func__
);
279 zlog_backtrace (LOG_DEBUG
);
286 void bgp_info_add(struct bgp_node
*rn
, struct bgp_info
*ri
)
288 struct bgp_info
*top
;
300 peer_lock(ri
->peer
); /* bgp_info peer reference */
303 /* Do the actual removal of info from RIB, for use by bgp_process
304 completion callback *only* */
305 void bgp_info_reap(struct bgp_node
*rn
, struct bgp_info
*ri
)
308 ri
->next
->prev
= ri
->prev
;
310 ri
->prev
->next
= ri
->next
;
314 bgp_info_mpath_dequeue(ri
);
319 void bgp_info_delete(struct bgp_node
*rn
, struct bgp_info
*ri
)
321 bgp_info_set_flag(rn
, ri
, BGP_INFO_REMOVED
);
322 /* set of previous already took care of pcount */
323 UNSET_FLAG(ri
->flags
, BGP_INFO_VALID
);
326 /* undo the effects of a previous call to bgp_info_delete; typically
327 called when a route is deleted and then quickly re-added before the
328 deletion has been processed */
329 void bgp_info_restore(struct bgp_node
*rn
, struct bgp_info
*ri
)
331 bgp_info_unset_flag(rn
, ri
, BGP_INFO_REMOVED
);
332 /* unset of previous already took care of pcount */
333 SET_FLAG(ri
->flags
, BGP_INFO_VALID
);
336 /* Adjust pcount as required */
337 static void bgp_pcount_adjust(struct bgp_node
*rn
, struct bgp_info
*ri
)
339 struct bgp_table
*table
;
341 assert(rn
&& bgp_node_table(rn
));
342 assert(ri
&& ri
->peer
&& ri
->peer
->bgp
);
344 table
= bgp_node_table(rn
);
346 if (ri
->peer
== ri
->peer
->bgp
->peer_self
)
349 if (!BGP_INFO_COUNTABLE(ri
)
350 && CHECK_FLAG(ri
->flags
, BGP_INFO_COUNTED
)) {
352 UNSET_FLAG(ri
->flags
, BGP_INFO_COUNTED
);
354 /* slight hack, but more robust against errors. */
355 if (ri
->peer
->pcount
[table
->afi
][table
->safi
])
356 ri
->peer
->pcount
[table
->afi
][table
->safi
]--;
358 flog_err(EC_LIB_DEVELOPMENT
,
359 "Asked to decrement 0 prefix count for peer");
360 } else if (BGP_INFO_COUNTABLE(ri
)
361 && !CHECK_FLAG(ri
->flags
, BGP_INFO_COUNTED
)) {
362 SET_FLAG(ri
->flags
, BGP_INFO_COUNTED
);
363 ri
->peer
->pcount
[table
->afi
][table
->safi
]++;
367 static int bgp_label_index_differs(struct bgp_info
*ri1
, struct bgp_info
*ri2
)
369 return (!(ri1
->attr
->label_index
== ri2
->attr
->label_index
));
372 /* Set/unset bgp_info flags, adjusting any other state as needed.
373 * This is here primarily to keep prefix-count in check.
375 void bgp_info_set_flag(struct bgp_node
*rn
, struct bgp_info
*ri
, uint32_t flag
)
377 SET_FLAG(ri
->flags
, flag
);
379 /* early bath if we know it's not a flag that changes countability state
381 if (!CHECK_FLAG(flag
,
382 BGP_INFO_VALID
| BGP_INFO_HISTORY
| BGP_INFO_REMOVED
))
385 bgp_pcount_adjust(rn
, ri
);
388 void bgp_info_unset_flag(struct bgp_node
*rn
, struct bgp_info
*ri
,
391 UNSET_FLAG(ri
->flags
, flag
);
393 /* early bath if we know it's not a flag that changes countability state
395 if (!CHECK_FLAG(flag
,
396 BGP_INFO_VALID
| BGP_INFO_HISTORY
| BGP_INFO_REMOVED
))
399 bgp_pcount_adjust(rn
, ri
);
402 /* Get MED value. If MED value is missing and "bgp bestpath
403 missing-as-worst" is specified, treat it as the worst value. */
404 static uint32_t bgp_med_value(struct attr
*attr
, struct bgp
*bgp
)
406 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
))
409 if (bgp_flag_check(bgp
, BGP_FLAG_MED_MISSING_AS_WORST
))
416 void bgp_info_path_with_addpath_rx_str(struct bgp_info
*ri
, char *buf
)
418 if (ri
->addpath_rx_id
)
419 sprintf(buf
, "path %s (addpath rxid %d)", ri
->peer
->host
,
422 sprintf(buf
, "path %s", ri
->peer
->host
);
425 /* Compare two bgp route entity. If 'new' is preferable over 'exist' return 1.
427 static int bgp_info_cmp(struct bgp
*bgp
, struct bgp_info
*new,
428 struct bgp_info
*exist
, int *paths_eq
,
429 struct bgp_maxpaths_cfg
*mpath_cfg
, int debug
,
430 char *pfx_buf
, afi_t afi
, safi_t safi
)
432 struct attr
*newattr
, *existattr
;
433 bgp_peer_sort_t new_sort
;
434 bgp_peer_sort_t exist_sort
;
440 uint32_t exist_weight
;
441 uint32_t newm
, existm
;
442 struct in_addr new_id
;
443 struct in_addr exist_id
;
446 int internal_as_route
;
449 char new_buf
[PATH_ADDPATH_STR_BUFFER
];
450 char exist_buf
[PATH_ADDPATH_STR_BUFFER
];
452 uint32_t exist_mm_seq
;
459 zlog_debug("%s: new is NULL", pfx_buf
);
464 bgp_info_path_with_addpath_rx_str(new, new_buf
);
468 zlog_debug("%s: %s is the initial bestpath", pfx_buf
,
474 bgp_info_path_with_addpath_rx_str(exist
, exist_buf
);
475 zlog_debug("%s: Comparing %s flags 0x%x with %s flags 0x%x",
476 pfx_buf
, new_buf
, new->flags
, exist_buf
,
481 existattr
= exist
->attr
;
483 /* For EVPN routes, we cannot just go by local vs remote, we have to
484 * look at the MAC mobility sequence number, if present.
486 if (safi
== SAFI_EVPN
) {
487 /* This is an error condition described in RFC 7432 Section
489 * states that in this scenario "the PE MUST alert the operator"
491 * does not state what other action to take. In order to provide
493 * consistency in this scenario we are going to prefer the path
497 if (newattr
->sticky
!= existattr
->sticky
) {
499 prefix2str(&new->net
->p
, pfx_buf
,
501 * PREFIX2STR_BUFFER
);
502 bgp_info_path_with_addpath_rx_str(new, new_buf
);
503 bgp_info_path_with_addpath_rx_str(exist
,
507 if (newattr
->sticky
&& !existattr
->sticky
) {
510 "%s: %s wins over %s due to sticky MAC flag",
511 pfx_buf
, new_buf
, exist_buf
);
515 if (!newattr
->sticky
&& existattr
->sticky
) {
518 "%s: %s loses to %s due to sticky MAC flag",
519 pfx_buf
, new_buf
, exist_buf
);
524 new_mm_seq
= mac_mobility_seqnum(newattr
);
525 exist_mm_seq
= mac_mobility_seqnum(existattr
);
527 if (new_mm_seq
> exist_mm_seq
) {
530 "%s: %s wins over %s due to MM seq %u > %u",
531 pfx_buf
, new_buf
, exist_buf
, new_mm_seq
,
536 if (new_mm_seq
< exist_mm_seq
) {
539 "%s: %s loses to %s due to MM seq %u < %u",
540 pfx_buf
, new_buf
, exist_buf
, new_mm_seq
,
546 /* 1. Weight check. */
547 new_weight
= newattr
->weight
;
548 exist_weight
= existattr
->weight
;
550 if (new_weight
> exist_weight
) {
552 zlog_debug("%s: %s wins over %s due to weight %d > %d",
553 pfx_buf
, new_buf
, exist_buf
, new_weight
,
558 if (new_weight
< exist_weight
) {
560 zlog_debug("%s: %s loses to %s due to weight %d < %d",
561 pfx_buf
, new_buf
, exist_buf
, new_weight
,
566 /* 2. Local preference check. */
567 new_pref
= exist_pref
= bgp
->default_local_pref
;
569 if (newattr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
))
570 new_pref
= newattr
->local_pref
;
571 if (existattr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
))
572 exist_pref
= existattr
->local_pref
;
574 if (new_pref
> exist_pref
) {
577 "%s: %s wins over %s due to localpref %d > %d",
578 pfx_buf
, new_buf
, exist_buf
, new_pref
,
583 if (new_pref
< exist_pref
) {
586 "%s: %s loses to %s due to localpref %d < %d",
587 pfx_buf
, new_buf
, exist_buf
, new_pref
,
592 /* 3. Local route check. We prefer:
594 * - BGP_ROUTE_AGGREGATE
595 * - BGP_ROUTE_REDISTRIBUTE
597 if (!(new->sub_type
== BGP_ROUTE_NORMAL
||
598 new->sub_type
== BGP_ROUTE_IMPORTED
)) {
601 "%s: %s wins over %s due to preferred BGP_ROUTE type",
602 pfx_buf
, new_buf
, exist_buf
);
606 if (!(exist
->sub_type
== BGP_ROUTE_NORMAL
||
607 exist
->sub_type
== BGP_ROUTE_IMPORTED
)) {
610 "%s: %s loses to %s due to preferred BGP_ROUTE type",
611 pfx_buf
, new_buf
, exist_buf
);
615 /* 4. AS path length check. */
616 if (!bgp_flag_check(bgp
, BGP_FLAG_ASPATH_IGNORE
)) {
617 int exist_hops
= aspath_count_hops(existattr
->aspath
);
618 int exist_confeds
= aspath_count_confeds(existattr
->aspath
);
620 if (bgp_flag_check(bgp
, BGP_FLAG_ASPATH_CONFED
)) {
623 aspath_hops
= aspath_count_hops(newattr
->aspath
);
624 aspath_hops
+= aspath_count_confeds(newattr
->aspath
);
626 if (aspath_hops
< (exist_hops
+ exist_confeds
)) {
629 "%s: %s wins over %s due to aspath (with confeds) hopcount %d < %d",
630 pfx_buf
, new_buf
, exist_buf
,
632 (exist_hops
+ exist_confeds
));
636 if (aspath_hops
> (exist_hops
+ exist_confeds
)) {
639 "%s: %s loses to %s due to aspath (with confeds) hopcount %d > %d",
640 pfx_buf
, new_buf
, exist_buf
,
642 (exist_hops
+ exist_confeds
));
646 int newhops
= aspath_count_hops(newattr
->aspath
);
648 if (newhops
< exist_hops
) {
651 "%s: %s wins over %s due to aspath hopcount %d < %d",
652 pfx_buf
, new_buf
, exist_buf
,
653 newhops
, exist_hops
);
657 if (newhops
> exist_hops
) {
660 "%s: %s loses to %s due to aspath hopcount %d > %d",
661 pfx_buf
, new_buf
, exist_buf
,
662 newhops
, exist_hops
);
668 /* 5. Origin check. */
669 if (newattr
->origin
< existattr
->origin
) {
671 zlog_debug("%s: %s wins over %s due to ORIGIN %s < %s",
672 pfx_buf
, new_buf
, exist_buf
,
673 bgp_origin_long_str
[newattr
->origin
],
674 bgp_origin_long_str
[existattr
->origin
]);
678 if (newattr
->origin
> existattr
->origin
) {
680 zlog_debug("%s: %s loses to %s due to ORIGIN %s > %s",
681 pfx_buf
, new_buf
, exist_buf
,
682 bgp_origin_long_str
[newattr
->origin
],
683 bgp_origin_long_str
[existattr
->origin
]);
688 internal_as_route
= (aspath_count_hops(newattr
->aspath
) == 0
689 && aspath_count_hops(existattr
->aspath
) == 0);
690 confed_as_route
= (aspath_count_confeds(newattr
->aspath
) > 0
691 && aspath_count_confeds(existattr
->aspath
) > 0
692 && aspath_count_hops(newattr
->aspath
) == 0
693 && aspath_count_hops(existattr
->aspath
) == 0);
695 if (bgp_flag_check(bgp
, BGP_FLAG_ALWAYS_COMPARE_MED
)
696 || (bgp_flag_check(bgp
, BGP_FLAG_MED_CONFED
) && confed_as_route
)
697 || aspath_cmp_left(newattr
->aspath
, existattr
->aspath
)
698 || aspath_cmp_left_confed(newattr
->aspath
, existattr
->aspath
)
699 || internal_as_route
) {
700 new_med
= bgp_med_value(new->attr
, bgp
);
701 exist_med
= bgp_med_value(exist
->attr
, bgp
);
703 if (new_med
< exist_med
) {
706 "%s: %s wins over %s due to MED %d < %d",
707 pfx_buf
, new_buf
, exist_buf
, new_med
,
712 if (new_med
> exist_med
) {
715 "%s: %s loses to %s due to MED %d > %d",
716 pfx_buf
, new_buf
, exist_buf
, new_med
,
722 /* 7. Peer type check. */
723 new_sort
= new->peer
->sort
;
724 exist_sort
= exist
->peer
->sort
;
726 if (new_sort
== BGP_PEER_EBGP
727 && (exist_sort
== BGP_PEER_IBGP
|| exist_sort
== BGP_PEER_CONFED
)) {
730 "%s: %s wins over %s due to eBGP peer > iBGP peer",
731 pfx_buf
, new_buf
, exist_buf
);
735 if (exist_sort
== BGP_PEER_EBGP
736 && (new_sort
== BGP_PEER_IBGP
|| new_sort
== BGP_PEER_CONFED
)) {
739 "%s: %s loses to %s due to iBGP peer < eBGP peer",
740 pfx_buf
, new_buf
, exist_buf
);
744 /* 8. IGP metric check. */
748 newm
= new->extra
->igpmetric
;
750 existm
= exist
->extra
->igpmetric
;
755 "%s: %s wins over %s due to IGP metric %d < %d",
756 pfx_buf
, new_buf
, exist_buf
, newm
, existm
);
763 "%s: %s loses to %s due to IGP metric %d > %d",
764 pfx_buf
, new_buf
, exist_buf
, newm
, existm
);
768 /* 9. Same IGP metric. Compare the cluster list length as
769 representative of IGP hops metric. Rewrite the metric value
770 pair (newm, existm) with the cluster list length. Prefer the
771 path with smaller cluster list length. */
772 if (newm
== existm
) {
773 if (peer_sort(new->peer
) == BGP_PEER_IBGP
774 && peer_sort(exist
->peer
) == BGP_PEER_IBGP
775 && (mpath_cfg
== NULL
777 mpath_cfg
->ibgp_flags
,
778 BGP_FLAG_IBGP_MULTIPATH_SAME_CLUSTERLEN
))) {
779 newm
= BGP_CLUSTER_LIST_LENGTH(new->attr
);
780 existm
= BGP_CLUSTER_LIST_LENGTH(exist
->attr
);
785 "%s: %s wins over %s due to CLUSTER_LIST length %d < %d",
786 pfx_buf
, new_buf
, exist_buf
,
794 "%s: %s loses to %s due to CLUSTER_LIST length %d > %d",
795 pfx_buf
, new_buf
, exist_buf
,
802 /* 10. confed-external vs. confed-internal */
803 if (CHECK_FLAG(bgp
->config
, BGP_CONFIG_CONFEDERATION
)) {
804 if (new_sort
== BGP_PEER_CONFED
805 && exist_sort
== BGP_PEER_IBGP
) {
808 "%s: %s wins over %s due to confed-external peer > confed-internal peer",
809 pfx_buf
, new_buf
, exist_buf
);
813 if (exist_sort
== BGP_PEER_CONFED
814 && new_sort
== BGP_PEER_IBGP
) {
817 "%s: %s loses to %s due to confed-internal peer < confed-external peer",
818 pfx_buf
, new_buf
, exist_buf
);
823 /* 11. Maximum path check. */
824 if (newm
== existm
) {
825 /* If one path has a label but the other does not, do not treat
826 * them as equals for multipath
828 if ((new->extra
&&bgp_is_valid_label(&new->extra
->label
[0]))
830 && bgp_is_valid_label(&exist
->extra
->label
[0]))) {
833 "%s: %s and %s cannot be multipath, one has a label while the other does not",
834 pfx_buf
, new_buf
, exist_buf
);
835 } else if (bgp_flag_check(bgp
,
836 BGP_FLAG_ASPATH_MULTIPATH_RELAX
)) {
839 * For the two paths, all comparison steps till IGP
841 * have succeeded - including AS_PATH hop count. Since
843 * bestpath as-path multipath-relax' knob is on, we
845 * an exact match of AS_PATH. Thus, mark the paths are
847 * That will trigger both these paths to get into the
855 "%s: %s and %s are equal via multipath-relax",
856 pfx_buf
, new_buf
, exist_buf
);
857 } else if (new->peer
->sort
== BGP_PEER_IBGP
) {
858 if (aspath_cmp(new->attr
->aspath
,
859 exist
->attr
->aspath
)) {
864 "%s: %s and %s are equal via matching aspaths",
865 pfx_buf
, new_buf
, exist_buf
);
867 } else if (new->peer
->as
== exist
->peer
->as
) {
872 "%s: %s and %s are equal via same remote-as",
873 pfx_buf
, new_buf
, exist_buf
);
877 * TODO: If unequal cost ibgp multipath is enabled we can
878 * mark the paths as equal here instead of returning
883 "%s: %s wins over %s after IGP metric comparison",
884 pfx_buf
, new_buf
, exist_buf
);
887 "%s: %s loses to %s after IGP metric comparison",
888 pfx_buf
, new_buf
, exist_buf
);
893 /* 12. If both paths are external, prefer the path that was received
894 first (the oldest one). This step minimizes route-flap, since a
895 newer path won't displace an older one, even if it was the
896 preferred route based on the additional decision criteria below. */
897 if (!bgp_flag_check(bgp
, BGP_FLAG_COMPARE_ROUTER_ID
)
898 && new_sort
== BGP_PEER_EBGP
&& exist_sort
== BGP_PEER_EBGP
) {
899 if (CHECK_FLAG(new->flags
, BGP_INFO_SELECTED
)) {
902 "%s: %s wins over %s due to oldest external",
903 pfx_buf
, new_buf
, exist_buf
);
907 if (CHECK_FLAG(exist
->flags
, BGP_INFO_SELECTED
)) {
910 "%s: %s loses to %s due to oldest external",
911 pfx_buf
, new_buf
, exist_buf
);
916 /* 13. Router-ID comparision. */
917 /* If one of the paths is "stale", the corresponding peer router-id will
918 * be 0 and would always win over the other path. If originator id is
919 * used for the comparision, it will decide which path is better.
921 if (newattr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID
))
922 new_id
.s_addr
= newattr
->originator_id
.s_addr
;
924 new_id
.s_addr
= new->peer
->remote_id
.s_addr
;
925 if (existattr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID
))
926 exist_id
.s_addr
= existattr
->originator_id
.s_addr
;
928 exist_id
.s_addr
= exist
->peer
->remote_id
.s_addr
;
930 if (ntohl(new_id
.s_addr
) < ntohl(exist_id
.s_addr
)) {
933 "%s: %s wins over %s due to Router-ID comparison",
934 pfx_buf
, new_buf
, exist_buf
);
938 if (ntohl(new_id
.s_addr
) > ntohl(exist_id
.s_addr
)) {
941 "%s: %s loses to %s due to Router-ID comparison",
942 pfx_buf
, new_buf
, exist_buf
);
946 /* 14. Cluster length comparision. */
947 new_cluster
= BGP_CLUSTER_LIST_LENGTH(new->attr
);
948 exist_cluster
= BGP_CLUSTER_LIST_LENGTH(exist
->attr
);
950 if (new_cluster
< exist_cluster
) {
953 "%s: %s wins over %s due to CLUSTER_LIST length %d < %d",
954 pfx_buf
, new_buf
, exist_buf
, new_cluster
,
959 if (new_cluster
> exist_cluster
) {
962 "%s: %s loses to %s due to CLUSTER_LIST length %d > %d",
963 pfx_buf
, new_buf
, exist_buf
, new_cluster
,
968 /* 15. Neighbor address comparision. */
969 /* Do this only if neither path is "stale" as stale paths do not have
970 * valid peer information (as the connection may or may not be up).
972 if (CHECK_FLAG(exist
->flags
, BGP_INFO_STALE
)) {
975 "%s: %s wins over %s due to latter path being STALE",
976 pfx_buf
, new_buf
, exist_buf
);
980 if (CHECK_FLAG(new->flags
, BGP_INFO_STALE
)) {
983 "%s: %s loses to %s due to former path being STALE",
984 pfx_buf
, new_buf
, exist_buf
);
988 /* locally configured routes to advertise do not have su_remote */
989 if (new->peer
->su_remote
== NULL
)
991 if (exist
->peer
->su_remote
== NULL
)
994 ret
= sockunion_cmp(new->peer
->su_remote
, exist
->peer
->su_remote
);
999 "%s: %s loses to %s due to Neighor IP comparison",
1000 pfx_buf
, new_buf
, exist_buf
);
1007 "%s: %s wins over %s due to Neighor IP comparison",
1008 pfx_buf
, new_buf
, exist_buf
);
1013 zlog_debug("%s: %s wins over %s due to nothing left to compare",
1014 pfx_buf
, new_buf
, exist_buf
);
1019 /* Compare two bgp route entity. Return -1 if new is preferred, 1 if exist
1020 * is preferred, or 0 if they are the same (usually will only occur if
1021 * multipath is enabled
1022 * This version is compatible with */
1023 int bgp_info_cmp_compatible(struct bgp
*bgp
, struct bgp_info
*new,
1024 struct bgp_info
*exist
, char *pfx_buf
, afi_t afi
,
1029 ret
= bgp_info_cmp(bgp
, new, exist
, &paths_eq
, NULL
, 0, pfx_buf
, afi
,
1043 static enum filter_type
bgp_input_filter(struct peer
*peer
, struct prefix
*p
,
1044 struct attr
*attr
, afi_t afi
,
1047 struct bgp_filter
*filter
;
1049 filter
= &peer
->filter
[afi
][safi
];
1051 #define FILTER_EXIST_WARN(F, f, filter) \
1052 if (BGP_DEBUG(update, UPDATE_IN) && !(F##_IN(filter))) \
1053 zlog_debug("%s: Could not find configured input %s-list %s!", \
1054 peer->host, #f, F##_IN_NAME(filter));
1056 if (DISTRIBUTE_IN_NAME(filter
)) {
1057 FILTER_EXIST_WARN(DISTRIBUTE
, distribute
, filter
);
1059 if (access_list_apply(DISTRIBUTE_IN(filter
), p
) == FILTER_DENY
)
1063 if (PREFIX_LIST_IN_NAME(filter
)) {
1064 FILTER_EXIST_WARN(PREFIX_LIST
, prefix
, filter
);
1066 if (prefix_list_apply(PREFIX_LIST_IN(filter
), p
) == PREFIX_DENY
)
1070 if (FILTER_LIST_IN_NAME(filter
)) {
1071 FILTER_EXIST_WARN(FILTER_LIST
, as
, filter
);
1073 if (as_list_apply(FILTER_LIST_IN(filter
), attr
->aspath
)
1078 return FILTER_PERMIT
;
1079 #undef FILTER_EXIST_WARN
1082 static enum filter_type
bgp_output_filter(struct peer
*peer
, struct prefix
*p
,
1083 struct attr
*attr
, afi_t afi
,
1086 struct bgp_filter
*filter
;
1088 filter
= &peer
->filter
[afi
][safi
];
1090 #define FILTER_EXIST_WARN(F, f, filter) \
1091 if (BGP_DEBUG(update, UPDATE_OUT) && !(F##_OUT(filter))) \
1092 zlog_debug("%s: Could not find configured output %s-list %s!", \
1093 peer->host, #f, F##_OUT_NAME(filter));
1095 if (DISTRIBUTE_OUT_NAME(filter
)) {
1096 FILTER_EXIST_WARN(DISTRIBUTE
, distribute
, filter
);
1098 if (access_list_apply(DISTRIBUTE_OUT(filter
), p
) == FILTER_DENY
)
1102 if (PREFIX_LIST_OUT_NAME(filter
)) {
1103 FILTER_EXIST_WARN(PREFIX_LIST
, prefix
, filter
);
1105 if (prefix_list_apply(PREFIX_LIST_OUT(filter
), p
)
1110 if (FILTER_LIST_OUT_NAME(filter
)) {
1111 FILTER_EXIST_WARN(FILTER_LIST
, as
, filter
);
1113 if (as_list_apply(FILTER_LIST_OUT(filter
), attr
->aspath
)
1118 return FILTER_PERMIT
;
1119 #undef FILTER_EXIST_WARN
1122 /* If community attribute includes no_export then return 1. */
1123 static int bgp_community_filter(struct peer
*peer
, struct attr
*attr
)
1125 if (attr
->community
) {
1126 /* NO_ADVERTISE check. */
1127 if (community_include(attr
->community
, COMMUNITY_NO_ADVERTISE
))
1130 /* NO_EXPORT check. */
1131 if (peer
->sort
== BGP_PEER_EBGP
1132 && community_include(attr
->community
, COMMUNITY_NO_EXPORT
))
1135 /* NO_EXPORT_SUBCONFED check. */
1136 if (peer
->sort
== BGP_PEER_EBGP
1137 || peer
->sort
== BGP_PEER_CONFED
)
1138 if (community_include(attr
->community
,
1139 COMMUNITY_NO_EXPORT_SUBCONFED
))
1145 /* Route reflection loop check. */
1146 static int bgp_cluster_filter(struct peer
*peer
, struct attr
*attr
)
1148 struct in_addr cluster_id
;
1150 if (attr
->cluster
) {
1151 if (peer
->bgp
->config
& BGP_CONFIG_CLUSTER_ID
)
1152 cluster_id
= peer
->bgp
->cluster_id
;
1154 cluster_id
= peer
->bgp
->router_id
;
1156 if (cluster_loop_check(attr
->cluster
, cluster_id
))
1162 static int bgp_input_modifier(struct peer
*peer
, struct prefix
*p
,
1163 struct attr
*attr
, afi_t afi
, safi_t safi
,
1164 const char *rmap_name
)
1166 struct bgp_filter
*filter
;
1167 struct bgp_info info
;
1168 route_map_result_t ret
;
1169 struct route_map
*rmap
= NULL
;
1171 filter
= &peer
->filter
[afi
][safi
];
1173 /* Apply default weight value. */
1174 if (peer
->weight
[afi
][safi
])
1175 attr
->weight
= peer
->weight
[afi
][safi
];
1178 rmap
= route_map_lookup_by_name(rmap_name
);
1183 if (ROUTE_MAP_IN_NAME(filter
)) {
1184 rmap
= ROUTE_MAP_IN(filter
);
1191 /* Route map apply. */
1193 memset(&info
, 0, sizeof(struct bgp_info
));
1194 /* Duplicate current value to new strucutre for modification. */
1198 SET_FLAG(peer
->rmap_type
, PEER_RMAP_TYPE_IN
);
1200 /* Apply BGP route map to the attribute. */
1201 ret
= route_map_apply(rmap
, p
, RMAP_BGP
, &info
);
1203 peer
->rmap_type
= 0;
1205 if (ret
== RMAP_DENYMATCH
)
1211 static int bgp_output_modifier(struct peer
*peer
, struct prefix
*p
,
1212 struct attr
*attr
, afi_t afi
, safi_t safi
,
1213 const char *rmap_name
)
1215 struct bgp_info info
;
1216 route_map_result_t ret
;
1217 struct route_map
*rmap
= NULL
;
1221 * So if we get to this point and have no rmap_name
1222 * we want to just show the output as it currently
1228 /* Apply default weight value. */
1229 if (peer
->weight
[afi
][safi
])
1230 attr
->weight
= peer
->weight
[afi
][safi
];
1232 rmap
= route_map_lookup_by_name(rmap_name
);
1235 * If we have a route map name and we do not find
1236 * the routemap that means we have an implicit
1242 memset(&info
, 0, sizeof(struct bgp_info
));
1243 /* Route map apply. */
1244 /* Duplicate current value to new strucutre for modification. */
1248 rmap_type
= peer
->rmap_type
;
1249 SET_FLAG(peer
->rmap_type
, PEER_RMAP_TYPE_OUT
);
1251 /* Apply BGP route map to the attribute. */
1252 ret
= route_map_apply(rmap
, p
, RMAP_BGP
, &info
);
1254 peer
->rmap_type
= rmap_type
;
1256 if (ret
== RMAP_DENYMATCH
)
1258 * caller has multiple error paths with bgp_attr_flush()
1265 /* If this is an EBGP peer with remove-private-AS */
1266 static void bgp_peer_remove_private_as(struct bgp
*bgp
, afi_t afi
, safi_t safi
,
1267 struct peer
*peer
, struct attr
*attr
)
1269 if (peer
->sort
== BGP_PEER_EBGP
1270 && (peer_af_flag_check(peer
, afi
, safi
,
1271 PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE
)
1272 || peer_af_flag_check(peer
, afi
, safi
,
1273 PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE
)
1274 || peer_af_flag_check(peer
, afi
, safi
,
1275 PEER_FLAG_REMOVE_PRIVATE_AS_ALL
)
1276 || peer_af_flag_check(peer
, afi
, safi
,
1277 PEER_FLAG_REMOVE_PRIVATE_AS
))) {
1278 // Take action on the entire aspath
1279 if (peer_af_flag_check(peer
, afi
, safi
,
1280 PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE
)
1281 || peer_af_flag_check(peer
, afi
, safi
,
1282 PEER_FLAG_REMOVE_PRIVATE_AS_ALL
)) {
1283 if (peer_af_flag_check(
1285 PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE
))
1286 attr
->aspath
= aspath_replace_private_asns(
1287 attr
->aspath
, bgp
->as
);
1289 // The entire aspath consists of private ASNs so create
1291 else if (aspath_private_as_check(attr
->aspath
))
1292 attr
->aspath
= aspath_empty_get();
1294 // There are some public and some private ASNs, remove
1297 attr
->aspath
= aspath_remove_private_asns(
1301 // 'all' was not specified so the entire aspath must be private
1303 // for us to do anything
1304 else if (aspath_private_as_check(attr
->aspath
)) {
1305 if (peer_af_flag_check(
1307 PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE
))
1308 attr
->aspath
= aspath_replace_private_asns(
1309 attr
->aspath
, bgp
->as
);
1311 attr
->aspath
= aspath_empty_get();
1316 /* If this is an EBGP peer with as-override */
1317 static void bgp_peer_as_override(struct bgp
*bgp
, afi_t afi
, safi_t safi
,
1318 struct peer
*peer
, struct attr
*attr
)
1320 if (peer
->sort
== BGP_PEER_EBGP
1321 && peer_af_flag_check(peer
, afi
, safi
, PEER_FLAG_AS_OVERRIDE
)) {
1322 if (aspath_single_asn_check(attr
->aspath
, peer
->as
))
1323 attr
->aspath
= aspath_replace_specific_asn(
1324 attr
->aspath
, peer
->as
, bgp
->as
);
1328 void bgp_attr_add_gshut_community(struct attr
*attr
)
1330 struct community
*old
;
1331 struct community
*new;
1332 struct community
*merge
;
1333 struct community
*gshut
;
1335 old
= attr
->community
;
1336 gshut
= community_str2com("graceful-shutdown");
1341 merge
= community_merge(community_dup(old
), gshut
);
1343 if (old
->refcnt
== 0)
1344 community_free(old
);
1346 new = community_uniq_sort(merge
);
1347 community_free(merge
);
1349 new = community_dup(gshut
);
1352 community_free(gshut
);
1353 attr
->community
= new;
1354 attr
->flag
|= ATTR_FLAG_BIT(BGP_ATTR_COMMUNITIES
);
1356 /* When we add the graceful-shutdown community we must also
1357 * lower the local-preference */
1358 attr
->flag
|= ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
);
1359 attr
->local_pref
= BGP_GSHUT_LOCAL_PREF
;
1363 static void subgroup_announce_reset_nhop(uint8_t family
, struct attr
*attr
)
1365 if (family
== AF_INET
) {
1366 attr
->nexthop
.s_addr
= 0;
1367 attr
->mp_nexthop_global_in
.s_addr
= 0;
1369 if (family
== AF_INET6
)
1370 memset(&attr
->mp_nexthop_global
, 0, IPV6_MAX_BYTELEN
);
1371 if (family
== AF_EVPN
)
1372 memset(&attr
->mp_nexthop_global_in
, 0, BGP_ATTR_NHLEN_IPV4
);
1375 int subgroup_announce_check(struct bgp_node
*rn
, struct bgp_info
*ri
,
1376 struct update_subgroup
*subgrp
, struct prefix
*p
,
1379 struct bgp_filter
*filter
;
1382 struct peer
*onlypeer
;
1384 struct attr
*riattr
;
1385 char buf
[PREFIX_STRLEN
];
1391 int samepeer_safe
= 0; /* for synthetic mplsvpns routes */
1393 if (DISABLE_BGP_ANNOUNCE
)
1396 afi
= SUBGRP_AFI(subgrp
);
1397 safi
= SUBGRP_SAFI(subgrp
);
1398 peer
= SUBGRP_PEER(subgrp
);
1400 if (CHECK_FLAG(peer
->flags
, PEER_FLAG_LONESOUL
))
1401 onlypeer
= SUBGRP_PFIRST(subgrp
)->peer
;
1404 filter
= &peer
->filter
[afi
][safi
];
1405 bgp
= SUBGRP_INST(subgrp
);
1406 riattr
= bgp_info_mpath_count(ri
) ? bgp_info_mpath_attr(ri
) : ri
->attr
;
1409 if (((afi
== AFI_IP
) || (afi
== AFI_IP6
)) && (safi
== SAFI_MPLS_VPN
)
1410 && ((ri
->type
== ZEBRA_ROUTE_BGP_DIRECT
)
1411 || (ri
->type
== ZEBRA_ROUTE_BGP_DIRECT_EXT
))) {
1414 * direct and direct_ext type routes originate internally even
1415 * though they can have peer pointers that reference other
1418 prefix2str(p
, buf
, PREFIX_STRLEN
);
1419 zlog_debug("%s: pfx %s bgp_direct->vpn route peer safe",
1425 if (((afi
== AFI_IP
) || (afi
== AFI_IP6
))
1426 && ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_UNICAST
))
1427 && (ri
->type
== ZEBRA_ROUTE_BGP
)
1428 && (ri
->sub_type
== BGP_ROUTE_IMPORTED
)) {
1430 /* Applies to routes leaked vpn->vrf and vrf->vpn */
1435 /* With addpath we may be asked to TX all kinds of paths so make sure
1437 if (!CHECK_FLAG(ri
->flags
, BGP_INFO_VALID
)
1438 || CHECK_FLAG(ri
->flags
, BGP_INFO_HISTORY
)
1439 || CHECK_FLAG(ri
->flags
, BGP_INFO_REMOVED
)) {
1443 /* If this is not the bestpath then check to see if there is an enabled
1445 * feature that requires us to advertise it */
1446 if (!CHECK_FLAG(ri
->flags
, BGP_INFO_SELECTED
)) {
1447 if (!bgp_addpath_tx_path(peer
, afi
, safi
, ri
)) {
1452 /* Aggregate-address suppress check. */
1453 if (ri
->extra
&& ri
->extra
->suppress
)
1454 if (!UNSUPPRESS_MAP_NAME(filter
)) {
1459 * If we are doing VRF 2 VRF leaking via the import
1460 * statement, we want to prevent the route going
1461 * off box as that the RT and RD created are localy
1462 * significant and globaly useless.
1464 if (safi
== SAFI_MPLS_VPN
&& ri
->extra
&& ri
->extra
->num_labels
1465 && ri
->extra
->label
[0] == BGP_PREVENT_VRF_2_VRF_LEAK
)
1468 /* If it's labeled safi, make sure the route has a valid label. */
1469 if (safi
== SAFI_LABELED_UNICAST
) {
1470 mpls_label_t label
= bgp_adv_label(rn
, ri
, peer
, afi
, safi
);
1471 if (!bgp_is_valid_label(&label
)) {
1472 if (bgp_debug_update(NULL
, p
, subgrp
->update_group
, 0))
1473 zlog_debug("u%" PRIu64
":s%" PRIu64
1474 " %s/%d is filtered - no label (%p)",
1475 subgrp
->update_group
->id
, subgrp
->id
,
1476 inet_ntop(p
->family
, &p
->u
.prefix
,
1477 buf
, SU_ADDRSTRLEN
),
1478 p
->prefixlen
, &label
);
1483 /* Do not send back route to sender. */
1484 if (onlypeer
&& from
== onlypeer
) {
1488 /* Do not send the default route in the BGP table if the neighbor is
1489 * configured for default-originate */
1490 if (CHECK_FLAG(peer
->af_flags
[afi
][safi
],
1491 PEER_FLAG_DEFAULT_ORIGINATE
)) {
1492 if (p
->family
== AF_INET
&& p
->u
.prefix4
.s_addr
== INADDR_ANY
)
1494 else if (p
->family
== AF_INET6
&& p
->prefixlen
== 0)
1498 /* Transparency check. */
1499 if (CHECK_FLAG(peer
->af_flags
[afi
][safi
], PEER_FLAG_RSERVER_CLIENT
)
1500 && CHECK_FLAG(from
->af_flags
[afi
][safi
], PEER_FLAG_RSERVER_CLIENT
))
1505 /* If community is not disabled check the no-export and local. */
1506 if (!transparent
&& bgp_community_filter(peer
, riattr
)) {
1507 if (bgp_debug_update(NULL
, p
, subgrp
->update_group
, 0))
1509 "subgrpannouncecheck: community filter check fail");
1513 /* If the attribute has originator-id and it is same as remote
1515 if (onlypeer
&& riattr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID
)
1516 && (IPV4_ADDR_SAME(&onlypeer
->remote_id
, &riattr
->originator_id
))) {
1517 if (bgp_debug_update(NULL
, p
, subgrp
->update_group
, 0))
1519 "%s [Update:SEND] %s originator-id is same as "
1522 prefix2str(p
, buf
, sizeof(buf
)));
1526 /* ORF prefix-list filter check */
1527 if (CHECK_FLAG(peer
->af_cap
[afi
][safi
], PEER_CAP_ORF_PREFIX_RM_ADV
)
1528 && (CHECK_FLAG(peer
->af_cap
[afi
][safi
], PEER_CAP_ORF_PREFIX_SM_RCV
)
1529 || CHECK_FLAG(peer
->af_cap
[afi
][safi
],
1530 PEER_CAP_ORF_PREFIX_SM_OLD_RCV
)))
1531 if (peer
->orf_plist
[afi
][safi
]) {
1532 if (prefix_list_apply(peer
->orf_plist
[afi
][safi
], p
)
1534 if (bgp_debug_update(NULL
, p
,
1535 subgrp
->update_group
, 0))
1537 "%s [Update:SEND] %s is filtered via ORF",
1545 /* Output filter check. */
1546 if (bgp_output_filter(peer
, p
, riattr
, afi
, safi
) == FILTER_DENY
) {
1547 if (bgp_debug_update(NULL
, p
, subgrp
->update_group
, 0))
1548 zlog_debug("%s [Update:SEND] %s is filtered",
1549 peer
->host
, prefix2str(p
, buf
, sizeof(buf
)));
1553 #ifdef BGP_SEND_ASPATH_CHECK
1554 /* AS path loop check. */
1555 if (onlypeer
&& aspath_loop_check(riattr
->aspath
, onlypeer
->as
)) {
1556 if (bgp_debug_update(NULL
, p
, subgrp
->update_group
, 0))
1558 "%s [Update:SEND] suppress announcement to peer AS %u "
1559 "that is part of AS path.",
1560 onlypeer
->host
, onlypeer
->as
);
1563 #endif /* BGP_SEND_ASPATH_CHECK */
1565 /* If we're a CONFED we need to loop check the CONFED ID too */
1566 if (CHECK_FLAG(bgp
->config
, BGP_CONFIG_CONFEDERATION
)) {
1567 if (aspath_loop_check(riattr
->aspath
, bgp
->confed_id
)) {
1568 if (bgp_debug_update(NULL
, p
, subgrp
->update_group
, 0))
1570 "%s [Update:SEND] suppress announcement to peer AS %u"
1572 peer
->host
, bgp
->confed_id
);
1577 /* Route-Reflect check. */
1578 if (from
->sort
== BGP_PEER_IBGP
&& peer
->sort
== BGP_PEER_IBGP
)
1583 /* IBGP reflection check. */
1584 if (reflect
&& !samepeer_safe
) {
1585 /* A route from a Client peer. */
1586 if (CHECK_FLAG(from
->af_flags
[afi
][safi
],
1587 PEER_FLAG_REFLECTOR_CLIENT
)) {
1588 /* Reflect to all the Non-Client peers and also to the
1589 Client peers other than the originator. Originator
1591 is already done. So there is noting to do. */
1592 /* no bgp client-to-client reflection check. */
1593 if (bgp_flag_check(bgp
, BGP_FLAG_NO_CLIENT_TO_CLIENT
))
1594 if (CHECK_FLAG(peer
->af_flags
[afi
][safi
],
1595 PEER_FLAG_REFLECTOR_CLIENT
))
1598 /* A route from a Non-client peer. Reflect to all other
1600 if (!CHECK_FLAG(peer
->af_flags
[afi
][safi
],
1601 PEER_FLAG_REFLECTOR_CLIENT
))
1606 /* For modify attribute, copy it to temporary structure. */
1607 bgp_attr_dup(attr
, riattr
);
1609 /* If local-preference is not set. */
1610 if ((peer
->sort
== BGP_PEER_IBGP
|| peer
->sort
== BGP_PEER_CONFED
)
1611 && (!(attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
)))) {
1612 attr
->flag
|= ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
);
1613 attr
->local_pref
= bgp
->default_local_pref
;
1616 /* If originator-id is not set and the route is to be reflected,
1617 set the originator id */
1619 && (!(attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID
)))) {
1620 IPV4_ADDR_COPY(&(attr
->originator_id
), &(from
->remote_id
));
1621 SET_FLAG(attr
->flag
, BGP_ATTR_ORIGINATOR_ID
);
1624 /* Remove MED if its an EBGP peer - will get overwritten by route-maps
1626 if (peer
->sort
== BGP_PEER_EBGP
1627 && attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
)) {
1628 if (from
!= bgp
->peer_self
&& !transparent
1629 && !CHECK_FLAG(peer
->af_flags
[afi
][safi
],
1630 PEER_FLAG_MED_UNCHANGED
))
1632 ~(ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
));
1635 /* Since the nexthop attribute can vary per peer, it is not explicitly
1637 * in announce check, only certain flags and length (or number of
1639 * -- for IPv6/MP_REACH) are set here in order to guide the update
1641 * code in setting the nexthop(s) on a per peer basis in
1643 * Typically, the source nexthop in the attribute is preserved but in
1645 * scenarios where we know it will always be overwritten, we reset the
1646 * nexthop to "0" in an attempt to achieve better Update packing. An
1647 * example of this is when a prefix from each of 2 IBGP peers needs to
1649 * announced to an EBGP peer (and they have the same attributes barring
1653 SET_FLAG(attr
->rmap_change_flags
, BATTR_REFLECTED
);
1655 #define NEXTHOP_IS_V6 \
1656 ((safi != SAFI_ENCAP && safi != SAFI_MPLS_VPN \
1657 && (p->family == AF_INET6 || peer_cap_enhe(peer, afi, safi))) \
1658 || ((safi == SAFI_ENCAP || safi == SAFI_MPLS_VPN) \
1659 && attr->mp_nexthop_len >= IPV6_MAX_BYTELEN))
1661 /* IPv6/MP starts with 1 nexthop. The link-local address is passed only
1663 * the peer (group) is configured to receive link-local nexthop
1665 * and it is available in the prefix OR we're not reflecting the route
1667 * the peer (group) to whom we're going to announce is on a shared
1669 * and this is either a self-originated route or the peer is EBGP.
1671 if (NEXTHOP_IS_V6
) {
1672 attr
->mp_nexthop_len
= BGP_ATTR_NHLEN_IPV6_GLOBAL
;
1673 if ((CHECK_FLAG(peer
->af_flags
[afi
][safi
],
1674 PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED
)
1675 && IN6_IS_ADDR_LINKLOCAL(&attr
->mp_nexthop_local
))
1676 || (!reflect
&& peer
->shared_network
1677 && (from
== bgp
->peer_self
1678 || peer
->sort
== BGP_PEER_EBGP
))) {
1679 attr
->mp_nexthop_len
=
1680 BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL
;
1683 /* Clear off link-local nexthop in source, whenever it is not
1685 * ensure more prefixes share the same attribute for
1688 if (!(CHECK_FLAG(peer
->af_flags
[afi
][safi
],
1689 PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED
)))
1690 memset(&attr
->mp_nexthop_local
, 0, IPV6_MAX_BYTELEN
);
1693 bgp_peer_remove_private_as(bgp
, afi
, safi
, peer
, attr
);
1694 bgp_peer_as_override(bgp
, afi
, safi
, peer
, attr
);
1696 /* Route map & unsuppress-map apply. */
1697 if (ROUTE_MAP_OUT_NAME(filter
) || (ri
->extra
&& ri
->extra
->suppress
)) {
1698 struct bgp_info info
;
1699 struct bgp_info_extra dummy_info_extra
;
1700 struct attr dummy_attr
;
1702 memset(&info
, 0, sizeof(struct bgp_info
));
1707 memcpy(&dummy_info_extra
, ri
->extra
,
1708 sizeof(struct bgp_info_extra
));
1709 info
.extra
= &dummy_info_extra
;
1712 /* don't confuse inbound and outbound setting */
1713 RESET_FLAG(attr
->rmap_change_flags
);
1716 * The route reflector is not allowed to modify the attributes
1717 * of the reflected IBGP routes unless explicitly allowed.
1719 if ((from
->sort
== BGP_PEER_IBGP
&& peer
->sort
== BGP_PEER_IBGP
)
1720 && !bgp_flag_check(bgp
,
1721 BGP_FLAG_RR_ALLOW_OUTBOUND_POLICY
)) {
1722 bgp_attr_dup(&dummy_attr
, attr
);
1723 info
.attr
= &dummy_attr
;
1726 SET_FLAG(peer
->rmap_type
, PEER_RMAP_TYPE_OUT
);
1728 if (ri
->extra
&& ri
->extra
->suppress
)
1729 ret
= route_map_apply(UNSUPPRESS_MAP(filter
), p
,
1732 ret
= route_map_apply(ROUTE_MAP_OUT(filter
), p
,
1735 peer
->rmap_type
= 0;
1737 if (ret
== RMAP_DENYMATCH
) {
1738 bgp_attr_flush(attr
);
1743 if (bgp_flag_check(bgp
, BGP_FLAG_GRACEFUL_SHUTDOWN
)) {
1744 if (peer
->sort
== BGP_PEER_IBGP
1745 || peer
->sort
== BGP_PEER_CONFED
) {
1746 attr
->flag
|= ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
);
1747 attr
->local_pref
= BGP_GSHUT_LOCAL_PREF
;
1749 bgp_attr_add_gshut_community(attr
);
1753 /* After route-map has been applied, we check to see if the nexthop to
1754 * be carried in the attribute (that is used for the announcement) can
1755 * be cleared off or not. We do this in all cases where we would be
1756 * setting the nexthop to "ourselves". For IPv6, we only need to
1758 * the global nexthop here; the link-local nexthop would have been
1760 * already, and if not, it is required by the update formation code.
1761 * Also see earlier comments in this function.
1764 * If route-map has performed some operation on the nexthop or the peer
1765 * configuration says to pass it unchanged, we cannot reset the nexthop
1766 * here, so only attempt to do it if these aren't true. Note that the
1767 * route-map handler itself might have cleared the nexthop, if for
1769 * it is configured as 'peer-address'.
1771 if (!bgp_rmap_nhop_changed(attr
->rmap_change_flags
,
1772 riattr
->rmap_change_flags
)
1774 && !CHECK_FLAG(peer
->af_flags
[afi
][safi
],
1775 PEER_FLAG_NEXTHOP_UNCHANGED
)) {
1776 /* We can reset the nexthop, if setting (or forcing) it to
1778 if (CHECK_FLAG(peer
->af_flags
[afi
][safi
],
1779 PEER_FLAG_NEXTHOP_SELF
)
1780 || CHECK_FLAG(peer
->af_flags
[afi
][safi
],
1781 PEER_FLAG_FORCE_NEXTHOP_SELF
)) {
1783 || CHECK_FLAG(peer
->af_flags
[afi
][safi
],
1784 PEER_FLAG_FORCE_NEXTHOP_SELF
))
1785 subgroup_announce_reset_nhop(
1786 (peer_cap_enhe(peer
, afi
, safi
)
1790 } else if (peer
->sort
== BGP_PEER_EBGP
) {
1791 /* Can also reset the nexthop if announcing to EBGP, but
1793 * no peer in the subgroup is on a shared subnet.
1794 * Note: 3rd party nexthop currently implemented for
1797 if (!bgp_subgrp_multiaccess_check_v4(riattr
->nexthop
,
1799 subgroup_announce_reset_nhop(
1800 (peer_cap_enhe(peer
, afi
, safi
)
1804 } else if (CHECK_FLAG(ri
->flags
, BGP_INFO_ANNC_NH_SELF
)) {
1806 * This flag is used for leaked vpn-vrf routes
1808 int family
= p
->family
;
1810 if (peer_cap_enhe(peer
, afi
, safi
))
1813 if (bgp_debug_update(NULL
, p
, subgrp
->update_group
, 0))
1815 "%s: BGP_INFO_ANNC_NH_SELF, family=%s",
1816 __func__
, family2str(family
));
1817 subgroup_announce_reset_nhop(family
, attr
);
1820 /* If IPv6/MP and nexthop does not have any override and happens
1822 * be a link-local address, reset it so that we don't pass along
1824 * source's link-local IPv6 address to recipients who may not be
1826 * the same interface.
1828 if (p
->family
== AF_INET6
|| peer_cap_enhe(peer
, afi
, safi
)) {
1829 if (IN6_IS_ADDR_LINKLOCAL(&attr
->mp_nexthop_global
))
1830 subgroup_announce_reset_nhop(AF_INET6
, attr
);
1837 void bgp_best_selection(struct bgp
*bgp
, struct bgp_node
*rn
,
1838 struct bgp_maxpaths_cfg
*mpath_cfg
,
1839 struct bgp_info_pair
*result
, afi_t afi
, safi_t safi
)
1841 struct bgp_info
*new_select
;
1842 struct bgp_info
*old_select
;
1843 struct bgp_info
*ri
;
1844 struct bgp_info
*ri1
;
1845 struct bgp_info
*ri2
;
1846 struct bgp_info
*nextri
= NULL
;
1847 int paths_eq
, do_mpath
, debug
;
1848 struct list mp_list
;
1849 char pfx_buf
[PREFIX2STR_BUFFER
];
1850 char path_buf
[PATH_ADDPATH_STR_BUFFER
];
1852 bgp_mp_list_init(&mp_list
);
1854 (mpath_cfg
->maxpaths_ebgp
> 1 || mpath_cfg
->maxpaths_ibgp
> 1);
1856 debug
= bgp_debug_bestpath(&rn
->p
);
1859 prefix2str(&rn
->p
, pfx_buf
, sizeof(pfx_buf
));
1861 /* bgp deterministic-med */
1863 if (bgp_flag_check(bgp
, BGP_FLAG_DETERMINISTIC_MED
)) {
1865 /* Clear BGP_INFO_DMED_SELECTED for all paths */
1866 for (ri1
= rn
->info
; ri1
; ri1
= ri1
->next
)
1867 bgp_info_unset_flag(rn
, ri1
, BGP_INFO_DMED_SELECTED
);
1869 for (ri1
= rn
->info
; ri1
; ri1
= ri1
->next
) {
1870 if (CHECK_FLAG(ri1
->flags
, BGP_INFO_DMED_CHECK
))
1872 if (BGP_INFO_HOLDDOWN(ri1
))
1874 if (ri1
->peer
&& ri1
->peer
!= bgp
->peer_self
)
1875 if (ri1
->peer
->status
!= Established
)
1880 for (ri2
= ri1
->next
; ri2
; ri2
= ri2
->next
) {
1881 if (CHECK_FLAG(ri2
->flags
,
1882 BGP_INFO_DMED_CHECK
))
1884 if (BGP_INFO_HOLDDOWN(ri2
))
1887 && ri2
->peer
!= bgp
->peer_self
1890 PEER_STATUS_NSF_WAIT
))
1891 if (ri2
->peer
->status
1895 if (aspath_cmp_left(ri1
->attr
->aspath
,
1897 || aspath_cmp_left_confed(
1899 ri2
->attr
->aspath
)) {
1900 if (bgp_info_cmp(bgp
, ri2
,
1906 bgp_info_unset_flag(
1908 BGP_INFO_DMED_SELECTED
);
1914 BGP_INFO_DMED_CHECK
);
1918 bgp_info_set_flag(rn
, new_select
, BGP_INFO_DMED_CHECK
);
1919 bgp_info_set_flag(rn
, new_select
,
1920 BGP_INFO_DMED_SELECTED
);
1923 bgp_info_path_with_addpath_rx_str(new_select
,
1925 zlog_debug("%s: %s is the bestpath from AS %u",
1927 aspath_get_first_as(
1928 new_select
->attr
->aspath
));
1933 /* Check old selected route and new selected route. */
1936 for (ri
= rn
->info
; (ri
!= NULL
) && (nextri
= ri
->next
, 1);
1938 if (CHECK_FLAG(ri
->flags
, BGP_INFO_SELECTED
))
1941 if (BGP_INFO_HOLDDOWN(ri
)) {
1942 /* reap REMOVED routes, if needs be
1943 * selected route must stay for a while longer though
1945 if (CHECK_FLAG(ri
->flags
, BGP_INFO_REMOVED
)
1946 && (ri
!= old_select
))
1947 bgp_info_reap(rn
, ri
);
1950 zlog_debug("%s: ri %p in holddown", __func__
,
1956 if (ri
->peer
&& ri
->peer
!= bgp
->peer_self
1957 && !CHECK_FLAG(ri
->peer
->sflags
, PEER_STATUS_NSF_WAIT
))
1958 if (ri
->peer
->status
!= Established
) {
1962 "%s: ri %p non self peer %s not estab state",
1963 __func__
, ri
, ri
->peer
->host
);
1968 if (bgp_flag_check(bgp
, BGP_FLAG_DETERMINISTIC_MED
)
1969 && (!CHECK_FLAG(ri
->flags
, BGP_INFO_DMED_SELECTED
))) {
1970 bgp_info_unset_flag(rn
, ri
, BGP_INFO_DMED_CHECK
);
1972 zlog_debug("%s: ri %p dmed", __func__
, ri
);
1976 bgp_info_unset_flag(rn
, ri
, BGP_INFO_DMED_CHECK
);
1978 if (bgp_info_cmp(bgp
, ri
, new_select
, &paths_eq
, mpath_cfg
,
1979 debug
, pfx_buf
, afi
, safi
)) {
1984 /* Now that we know which path is the bestpath see if any of the other
1986 * qualify as multipaths
1990 bgp_info_path_with_addpath_rx_str(new_select
, path_buf
);
1992 sprintf(path_buf
, "NONE");
1994 "%s: After path selection, newbest is %s oldbest was %s",
1996 old_select
? old_select
->peer
->host
: "NONE");
1999 if (do_mpath
&& new_select
) {
2000 for (ri
= rn
->info
; (ri
!= NULL
) && (nextri
= ri
->next
, 1);
2004 bgp_info_path_with_addpath_rx_str(ri
, path_buf
);
2006 if (ri
== new_select
) {
2009 "%s: %s is the bestpath, add to the multipath list",
2011 bgp_mp_list_add(&mp_list
, ri
);
2015 if (BGP_INFO_HOLDDOWN(ri
))
2018 if (ri
->peer
&& ri
->peer
!= bgp
->peer_self
2019 && !CHECK_FLAG(ri
->peer
->sflags
,
2020 PEER_STATUS_NSF_WAIT
))
2021 if (ri
->peer
->status
!= Established
)
2024 if (!bgp_info_nexthop_cmp(ri
, new_select
)) {
2027 "%s: %s has the same nexthop as the bestpath, skip it",
2032 bgp_info_cmp(bgp
, ri
, new_select
, &paths_eq
, mpath_cfg
,
2033 debug
, pfx_buf
, afi
, safi
);
2038 "%s: %s is equivalent to the bestpath, add to the multipath list",
2040 bgp_mp_list_add(&mp_list
, ri
);
2045 bgp_info_mpath_update(rn
, new_select
, old_select
, &mp_list
, mpath_cfg
);
2046 bgp_info_mpath_aggregate_update(new_select
, old_select
);
2047 bgp_mp_list_clear(&mp_list
);
2049 result
->old
= old_select
;
2050 result
->new = new_select
;
2056 * A new route/change in bestpath of an existing route. Evaluate the path
2057 * for advertisement to the subgroup.
2059 int subgroup_process_announce_selected(struct update_subgroup
*subgrp
,
2060 struct bgp_info
*selected
,
2061 struct bgp_node
*rn
,
2062 uint32_t addpath_tx_id
)
2065 struct peer
*onlypeer
;
2071 afi
= SUBGRP_AFI(subgrp
);
2072 safi
= SUBGRP_SAFI(subgrp
);
2073 onlypeer
= ((SUBGRP_PCOUNT(subgrp
) == 1) ? (SUBGRP_PFIRST(subgrp
))->peer
2076 if (BGP_DEBUG(update
, UPDATE_OUT
)) {
2077 char buf_prefix
[PREFIX_STRLEN
];
2078 prefix2str(p
, buf_prefix
, sizeof(buf_prefix
));
2079 zlog_debug("%s: p=%s, selected=%p", __func__
, buf_prefix
,
2083 /* First update is deferred until ORF or ROUTE-REFRESH is received */
2084 if (onlypeer
&& CHECK_FLAG(onlypeer
->af_sflags
[afi
][safi
],
2085 PEER_STATUS_ORF_WAIT_REFRESH
))
2088 memset(&attr
, 0, sizeof(struct attr
));
2089 /* It's initialized in bgp_announce_check() */
2091 /* Announcement to the subgroup. If the route is filtered withdraw it.
2094 if (subgroup_announce_check(rn
, selected
, subgrp
, p
, &attr
))
2095 bgp_adj_out_set_subgroup(rn
, subgrp
, &attr
, selected
);
2097 bgp_adj_out_unset_subgroup(rn
, subgrp
, 1,
2098 selected
->addpath_tx_id
);
2101 /* If selected is NULL we must withdraw the path using addpath_tx_id */
2103 bgp_adj_out_unset_subgroup(rn
, subgrp
, 1, addpath_tx_id
);
2110 * Clear IGP changed flag and attribute changed flag for a route (all paths).
2111 * This is called at the end of route processing.
2113 void bgp_zebra_clear_route_change_flags(struct bgp_node
*rn
)
2115 struct bgp_info
*ri
;
2117 for (ri
= rn
->info
; ri
; ri
= ri
->next
) {
2118 if (BGP_INFO_HOLDDOWN(ri
))
2120 UNSET_FLAG(ri
->flags
, BGP_INFO_IGP_CHANGED
);
2121 UNSET_FLAG(ri
->flags
, BGP_INFO_ATTR_CHANGED
);
2126 * Has the route changed from the RIB's perspective? This is invoked only
2127 * if the route selection returns the same best route as earlier - to
2128 * determine if we need to update zebra or not.
2130 int bgp_zebra_has_route_changed(struct bgp_node
*rn
, struct bgp_info
*selected
)
2132 struct bgp_info
*mpinfo
;
2134 /* If this is multipath, check all selected paths for any nexthop
2135 * change or attribute change. Some attribute changes (e.g., community)
2136 * aren't of relevance to the RIB, but we'll update zebra to ensure
2137 * we handle the case of BGP nexthop change. This is the behavior
2138 * when the best path has an attribute change anyway.
2140 if (CHECK_FLAG(selected
->flags
, BGP_INFO_IGP_CHANGED
)
2141 || CHECK_FLAG(selected
->flags
, BGP_INFO_MULTIPATH_CHG
))
2145 * If this is multipath, check all selected paths for any nexthop change
2147 for (mpinfo
= bgp_info_mpath_first(selected
); mpinfo
;
2148 mpinfo
= bgp_info_mpath_next(mpinfo
)) {
2149 if (CHECK_FLAG(mpinfo
->flags
, BGP_INFO_IGP_CHANGED
)
2150 || CHECK_FLAG(mpinfo
->flags
, BGP_INFO_ATTR_CHANGED
))
2154 /* Nothing has changed from the RIB's perspective. */
2158 struct bgp_process_queue
{
2160 STAILQ_HEAD(, bgp_node
) pqueue
;
2161 #define BGP_PROCESS_QUEUE_EOIU_MARKER (1 << 0)
2163 unsigned int queued
;
2167 * old_select = The old best path
2168 * new_select = the new best path
2170 * if (!old_select && new_select)
2171 * We are sending new information on.
2173 * if (old_select && new_select) {
2174 * if (new_select != old_select)
2175 * We have a new best path send a change
2177 * We've received a update with new attributes that needs
2181 * if (old_select && !new_select)
2182 * We have no eligible route that we can announce or the rn
2185 static void bgp_process_main_one(struct bgp
*bgp
, struct bgp_node
*rn
,
2186 afi_t afi
, safi_t safi
)
2188 struct bgp_info
*new_select
;
2189 struct bgp_info
*old_select
;
2190 struct bgp_info_pair old_and_new
;
2191 char pfx_buf
[PREFIX2STR_BUFFER
];
2194 /* Is it end of initial update? (after startup) */
2196 quagga_timestamp(3, bgp
->update_delay_zebra_resume_time
,
2197 sizeof(bgp
->update_delay_zebra_resume_time
));
2199 bgp
->main_zebra_update_hold
= 0;
2200 FOREACH_AFI_SAFI (afi
, safi
) {
2201 if (bgp_fibupd_safi(safi
))
2202 bgp_zebra_announce_table(bgp
, afi
, safi
);
2204 bgp
->main_peers_update_hold
= 0;
2206 bgp_start_routeadv(bgp
);
2210 struct prefix
*p
= &rn
->p
;
2212 debug
= bgp_debug_bestpath(&rn
->p
);
2214 prefix2str(&rn
->p
, pfx_buf
, sizeof(pfx_buf
));
2215 zlog_debug("%s: p=%s afi=%s, safi=%s start", __func__
, pfx_buf
,
2216 afi2str(afi
), safi2str(safi
));
2219 /* Best path selection. */
2220 bgp_best_selection(bgp
, rn
, &bgp
->maxpaths
[afi
][safi
], &old_and_new
,
2222 old_select
= old_and_new
.old
;
2223 new_select
= old_and_new
.new;
2225 /* Do we need to allocate or free labels?
2226 * Right now, since we only deal with per-prefix labels, it is not
2227 * necessary to do this upon changes to best path except if the label
2230 if (bgp
->allocate_mpls_labels
[afi
][safi
]) {
2233 || bgp_label_index_differs(new_select
, old_select
)
2234 || new_select
->sub_type
!= old_select
->sub_type
) {
2235 if (new_select
->sub_type
== BGP_ROUTE_STATIC
2236 && new_select
->attr
->flag
2238 BGP_ATTR_PREFIX_SID
)
2239 && new_select
->attr
->label_index
2240 != BGP_INVALID_LABEL_INDEX
) {
2243 BGP_NODE_REGISTERED_FOR_LABEL
))
2244 bgp_unregister_for_label(rn
);
2245 label_ntop(MPLS_LABEL_IMPLICIT_NULL
, 1,
2247 bgp_set_valid_label(&rn
->local_label
);
2249 bgp_register_for_label(rn
, new_select
);
2251 } else if (CHECK_FLAG(rn
->flags
,
2252 BGP_NODE_REGISTERED_FOR_LABEL
)) {
2253 bgp_unregister_for_label(rn
);
2255 } else if (CHECK_FLAG(rn
->flags
, BGP_NODE_REGISTERED_FOR_LABEL
)) {
2256 bgp_unregister_for_label(rn
);
2260 prefix2str(&rn
->p
, pfx_buf
, sizeof(pfx_buf
));
2262 "%s: p=%s afi=%s, safi=%s, old_select=%p, new_select=%p",
2263 __func__
, pfx_buf
, afi2str(afi
), safi2str(safi
),
2264 old_select
, new_select
);
2267 /* If best route remains the same and this is not due to user-initiated
2268 * clear, see exactly what needs to be done.
2270 if (old_select
&& old_select
== new_select
2271 && !CHECK_FLAG(rn
->flags
, BGP_NODE_USER_CLEAR
)
2272 && !CHECK_FLAG(old_select
->flags
, BGP_INFO_ATTR_CHANGED
)
2273 && !bgp
->addpath_tx_used
[afi
][safi
]) {
2274 if (bgp_zebra_has_route_changed(rn
, old_select
)) {
2276 vnc_import_bgp_add_route(bgp
, p
, old_select
);
2277 vnc_import_bgp_exterior_add_route(bgp
, p
, old_select
);
2279 if (bgp_fibupd_safi(safi
)
2280 && !bgp_option_check(BGP_OPT_NO_FIB
)) {
2282 if (new_select
->type
== ZEBRA_ROUTE_BGP
2283 && (new_select
->sub_type
== BGP_ROUTE_NORMAL
2284 || new_select
->sub_type
2285 == BGP_ROUTE_IMPORTED
))
2287 bgp_zebra_announce(rn
, p
, old_select
,
2291 UNSET_FLAG(old_select
->flags
, BGP_INFO_MULTIPATH_CHG
);
2292 bgp_zebra_clear_route_change_flags(rn
);
2294 /* If there is a change of interest to peers, reannounce the
2296 if (CHECK_FLAG(old_select
->flags
, BGP_INFO_ATTR_CHANGED
)
2297 || CHECK_FLAG(rn
->flags
, BGP_NODE_LABEL_CHANGED
)) {
2298 group_announce_route(bgp
, afi
, safi
, rn
, new_select
);
2300 /* unicast routes must also be annouced to
2301 * labeled-unicast update-groups */
2302 if (safi
== SAFI_UNICAST
)
2303 group_announce_route(bgp
, afi
,
2304 SAFI_LABELED_UNICAST
, rn
,
2307 UNSET_FLAG(old_select
->flags
, BGP_INFO_ATTR_CHANGED
);
2308 UNSET_FLAG(rn
->flags
, BGP_NODE_LABEL_CHANGED
);
2311 UNSET_FLAG(rn
->flags
, BGP_NODE_PROCESS_SCHEDULED
);
2315 /* If the user did "clear ip bgp prefix x.x.x.x" this flag will be set
2317 UNSET_FLAG(rn
->flags
, BGP_NODE_USER_CLEAR
);
2319 /* bestpath has changed; bump version */
2320 if (old_select
|| new_select
) {
2321 bgp_bump_version(rn
);
2323 if (!bgp
->t_rmap_def_originate_eval
) {
2327 update_group_refresh_default_originate_route_map
,
2328 bgp
, RMAP_DEFAULT_ORIGINATE_EVAL_TIMER
,
2329 &bgp
->t_rmap_def_originate_eval
);
2334 bgp_info_unset_flag(rn
, old_select
, BGP_INFO_SELECTED
);
2337 zlog_debug("%s: setting SELECTED flag", __func__
);
2338 bgp_info_set_flag(rn
, new_select
, BGP_INFO_SELECTED
);
2339 bgp_info_unset_flag(rn
, new_select
, BGP_INFO_ATTR_CHANGED
);
2340 UNSET_FLAG(new_select
->flags
, BGP_INFO_MULTIPATH_CHG
);
2344 if ((afi
== AFI_IP
|| afi
== AFI_IP6
) && (safi
== SAFI_UNICAST
)) {
2345 if (old_select
!= new_select
) {
2347 vnc_import_bgp_exterior_del_route(bgp
, p
,
2349 vnc_import_bgp_del_route(bgp
, p
, old_select
);
2352 vnc_import_bgp_exterior_add_route(bgp
, p
,
2354 vnc_import_bgp_add_route(bgp
, p
, new_select
);
2360 group_announce_route(bgp
, afi
, safi
, rn
, new_select
);
2362 /* unicast routes must also be annouced to labeled-unicast update-groups
2364 if (safi
== SAFI_UNICAST
)
2365 group_announce_route(bgp
, afi
, SAFI_LABELED_UNICAST
, rn
,
2369 if (bgp_fibupd_safi(safi
) && (bgp
->inst_type
!= BGP_INSTANCE_TYPE_VIEW
)
2370 && !bgp_option_check(BGP_OPT_NO_FIB
)) {
2371 if (new_select
&& new_select
->type
== ZEBRA_ROUTE_BGP
2372 && (new_select
->sub_type
== BGP_ROUTE_NORMAL
2373 || new_select
->sub_type
== BGP_ROUTE_AGGREGATE
2374 || new_select
->sub_type
== BGP_ROUTE_IMPORTED
)) {
2376 /* if this is an evpn imported type-5 prefix,
2377 * we need to withdraw the route first to clear
2378 * the nh neigh and the RMAC entry.
2381 is_route_parent_evpn(old_select
))
2382 bgp_zebra_withdraw(p
, old_select
, bgp
, safi
);
2384 bgp_zebra_announce(rn
, p
, new_select
, bgp
, afi
, safi
);
2386 /* Withdraw the route from the kernel. */
2387 if (old_select
&& old_select
->type
== ZEBRA_ROUTE_BGP
2388 && (old_select
->sub_type
== BGP_ROUTE_NORMAL
2389 || old_select
->sub_type
== BGP_ROUTE_AGGREGATE
2390 || old_select
->sub_type
== BGP_ROUTE_IMPORTED
))
2392 bgp_zebra_withdraw(p
, old_select
, bgp
, safi
);
2396 /* advertise/withdraw type-5 routes */
2397 if ((afi
== AFI_IP
|| afi
== AFI_IP6
) && (safi
== SAFI_UNICAST
)) {
2398 if (advertise_type5_routes(bgp
, afi
) && new_select
&&
2399 (!new_select
->extra
|| !new_select
->extra
->parent
)) {
2401 /* apply the route-map */
2402 if (bgp
->adv_cmd_rmap
[afi
][safi
].map
) {
2405 ret
= route_map_apply(
2406 bgp
->adv_cmd_rmap
[afi
][safi
].map
,
2407 &rn
->p
, RMAP_BGP
, new_select
);
2408 if (ret
== RMAP_MATCH
)
2409 bgp_evpn_advertise_type5_route(
2410 bgp
, &rn
->p
, new_select
->attr
,
2413 bgp_evpn_advertise_type5_route(bgp
,
2419 } else if (advertise_type5_routes(bgp
, afi
) && old_select
&&
2420 (!old_select
->extra
|| !old_select
->extra
->parent
))
2421 bgp_evpn_withdraw_type5_route(bgp
, &rn
->p
, afi
, safi
);
2424 /* Clear any route change flags. */
2425 bgp_zebra_clear_route_change_flags(rn
);
2427 /* Reap old select bgp_info, if it has been removed */
2428 if (old_select
&& CHECK_FLAG(old_select
->flags
, BGP_INFO_REMOVED
))
2429 bgp_info_reap(rn
, old_select
);
2431 UNSET_FLAG(rn
->flags
, BGP_NODE_PROCESS_SCHEDULED
);
2435 static wq_item_status
bgp_process_wq(struct work_queue
*wq
, void *data
)
2437 struct bgp_process_queue
*pqnode
= data
;
2438 struct bgp
*bgp
= pqnode
->bgp
;
2439 struct bgp_table
*table
;
2440 struct bgp_node
*rn
;
2443 if (CHECK_FLAG(pqnode
->flags
, BGP_PROCESS_QUEUE_EOIU_MARKER
)) {
2444 bgp_process_main_one(bgp
, NULL
, 0, 0);
2445 /* should always have dedicated wq call */
2446 assert(STAILQ_FIRST(&pqnode
->pqueue
) == NULL
);
2450 while (!STAILQ_EMPTY(&pqnode
->pqueue
)) {
2451 rn
= STAILQ_FIRST(&pqnode
->pqueue
);
2452 STAILQ_REMOVE_HEAD(&pqnode
->pqueue
, pq
);
2453 STAILQ_NEXT(rn
, pq
) = NULL
; /* complete unlink */
2454 table
= bgp_node_table(rn
);
2455 /* note, new RNs may be added as part of processing */
2456 bgp_process_main_one(bgp
, rn
, table
->afi
, table
->safi
);
2458 bgp_unlock_node(rn
);
2459 bgp_table_unlock(table
);
2465 static void bgp_processq_del(struct work_queue
*wq
, void *data
)
2467 struct bgp_process_queue
*pqnode
= data
;
2469 bgp_unlock(pqnode
->bgp
);
2471 XFREE(MTYPE_BGP_PROCESS_QUEUE
, pqnode
);
2474 void bgp_process_queue_init(void)
2476 if (!bm
->process_main_queue
)
2477 bm
->process_main_queue
=
2478 work_queue_new(bm
->master
, "process_main_queue");
2480 bm
->process_main_queue
->spec
.workfunc
= &bgp_process_wq
;
2481 bm
->process_main_queue
->spec
.del_item_data
= &bgp_processq_del
;
2482 bm
->process_main_queue
->spec
.max_retries
= 0;
2483 bm
->process_main_queue
->spec
.hold
= 50;
2484 /* Use a higher yield value of 50ms for main queue processing */
2485 bm
->process_main_queue
->spec
.yield
= 50 * 1000L;
2488 static struct bgp_process_queue
*bgp_processq_alloc(struct bgp
*bgp
)
2490 struct bgp_process_queue
*pqnode
;
2492 pqnode
= XCALLOC(MTYPE_BGP_PROCESS_QUEUE
,
2493 sizeof(struct bgp_process_queue
));
2495 /* unlocked in bgp_processq_del */
2496 pqnode
->bgp
= bgp_lock(bgp
);
2497 STAILQ_INIT(&pqnode
->pqueue
);
2502 void bgp_process(struct bgp
*bgp
, struct bgp_node
*rn
, afi_t afi
, safi_t safi
)
2504 #define ARBITRARY_PROCESS_QLEN 10000
2505 struct work_queue
*wq
= bm
->process_main_queue
;
2506 struct bgp_process_queue
*pqnode
;
2507 int pqnode_reuse
= 0;
2509 /* already scheduled for processing? */
2510 if (CHECK_FLAG(rn
->flags
, BGP_NODE_PROCESS_SCHEDULED
))
2516 /* Add route nodes to an existing work queue item until reaching the
2517 limit only if is from the same BGP view and it's not an EOIU marker
2519 if (work_queue_item_count(wq
)) {
2520 struct work_queue_item
*item
= work_queue_last_item(wq
);
2521 pqnode
= item
->data
;
2523 if (CHECK_FLAG(pqnode
->flags
, BGP_PROCESS_QUEUE_EOIU_MARKER
)
2524 || pqnode
->bgp
!= bgp
2525 || pqnode
->queued
>= ARBITRARY_PROCESS_QLEN
)
2526 pqnode
= bgp_processq_alloc(bgp
);
2530 pqnode
= bgp_processq_alloc(bgp
);
2531 /* all unlocked in bgp_process_wq */
2532 bgp_table_lock(bgp_node_table(rn
));
2534 SET_FLAG(rn
->flags
, BGP_NODE_PROCESS_SCHEDULED
);
2537 /* can't be enqueued twice */
2538 assert(STAILQ_NEXT(rn
, pq
) == NULL
);
2539 STAILQ_INSERT_TAIL(&pqnode
->pqueue
, rn
, pq
);
2543 work_queue_add(wq
, pqnode
);
2548 void bgp_add_eoiu_mark(struct bgp
*bgp
)
2550 struct bgp_process_queue
*pqnode
;
2552 if (bm
->process_main_queue
== NULL
)
2555 pqnode
= bgp_processq_alloc(bgp
);
2557 SET_FLAG(pqnode
->flags
, BGP_PROCESS_QUEUE_EOIU_MARKER
);
2558 work_queue_add(bm
->process_main_queue
, pqnode
);
2561 static int bgp_maximum_prefix_restart_timer(struct thread
*thread
)
2565 peer
= THREAD_ARG(thread
);
2566 peer
->t_pmax_restart
= NULL
;
2568 if (bgp_debug_neighbor_events(peer
))
2570 "%s Maximum-prefix restart timer expired, restore peering",
2573 if ((peer_clear(peer
, NULL
) < 0) && bgp_debug_neighbor_events(peer
))
2574 zlog_debug("%s: %s peer_clear failed",
2575 __PRETTY_FUNCTION__
, peer
->host
);
2580 int bgp_maximum_prefix_overflow(struct peer
*peer
, afi_t afi
, safi_t safi
,
2584 iana_safi_t pkt_safi
;
2586 if (!CHECK_FLAG(peer
->af_flags
[afi
][safi
], PEER_FLAG_MAX_PREFIX
))
2589 if (peer
->pcount
[afi
][safi
] > peer
->pmax
[afi
][safi
]) {
2590 if (CHECK_FLAG(peer
->af_sflags
[afi
][safi
],
2591 PEER_STATUS_PREFIX_LIMIT
)
2596 "%%MAXPFXEXCEED: No. of %s prefix received from %s %ld exceed, "
2598 afi_safi_print(afi
, safi
), peer
->host
,
2599 peer
->pcount
[afi
][safi
], peer
->pmax
[afi
][safi
]);
2600 SET_FLAG(peer
->af_sflags
[afi
][safi
], PEER_STATUS_PREFIX_LIMIT
);
2602 if (CHECK_FLAG(peer
->af_flags
[afi
][safi
],
2603 PEER_FLAG_MAX_PREFIX_WARNING
))
2606 /* Convert AFI, SAFI to values for packet. */
2607 pkt_afi
= afi_int2iana(afi
);
2608 pkt_safi
= safi_int2iana(safi
);
2612 ndata
[0] = (pkt_afi
>> 8);
2614 ndata
[2] = pkt_safi
;
2615 ndata
[3] = (peer
->pmax
[afi
][safi
] >> 24);
2616 ndata
[4] = (peer
->pmax
[afi
][safi
] >> 16);
2617 ndata
[5] = (peer
->pmax
[afi
][safi
] >> 8);
2618 ndata
[6] = (peer
->pmax
[afi
][safi
]);
2620 SET_FLAG(peer
->sflags
, PEER_STATUS_PREFIX_OVERFLOW
);
2621 bgp_notify_send_with_data(peer
, BGP_NOTIFY_CEASE
,
2622 BGP_NOTIFY_CEASE_MAX_PREFIX
,
2626 /* Dynamic peers will just close their connection. */
2627 if (peer_dynamic_neighbor(peer
))
2630 /* restart timer start */
2631 if (peer
->pmax_restart
[afi
][safi
]) {
2632 peer
->v_pmax_restart
=
2633 peer
->pmax_restart
[afi
][safi
] * 60;
2635 if (bgp_debug_neighbor_events(peer
))
2637 "%s Maximum-prefix restart timer started for %d secs",
2638 peer
->host
, peer
->v_pmax_restart
);
2640 BGP_TIMER_ON(peer
->t_pmax_restart
,
2641 bgp_maximum_prefix_restart_timer
,
2642 peer
->v_pmax_restart
);
2647 UNSET_FLAG(peer
->af_sflags
[afi
][safi
],
2648 PEER_STATUS_PREFIX_LIMIT
);
2650 if (peer
->pcount
[afi
][safi
]
2651 > (peer
->pmax
[afi
][safi
] * peer
->pmax_threshold
[afi
][safi
] / 100)) {
2652 if (CHECK_FLAG(peer
->af_sflags
[afi
][safi
],
2653 PEER_STATUS_PREFIX_THRESHOLD
)
2658 "%%MAXPFX: No. of %s prefix received from %s reaches %ld, max %ld",
2659 afi_safi_print(afi
, safi
), peer
->host
,
2660 peer
->pcount
[afi
][safi
], peer
->pmax
[afi
][safi
]);
2661 SET_FLAG(peer
->af_sflags
[afi
][safi
],
2662 PEER_STATUS_PREFIX_THRESHOLD
);
2664 UNSET_FLAG(peer
->af_sflags
[afi
][safi
],
2665 PEER_STATUS_PREFIX_THRESHOLD
);
2669 /* Unconditionally remove the route from the RIB, without taking
2670 * damping into consideration (eg, because the session went down)
2672 void bgp_rib_remove(struct bgp_node
*rn
, struct bgp_info
*ri
, struct peer
*peer
,
2673 afi_t afi
, safi_t safi
)
2675 bgp_aggregate_decrement(peer
->bgp
, &rn
->p
, ri
, afi
, safi
);
2677 if (!CHECK_FLAG(ri
->flags
, BGP_INFO_HISTORY
))
2678 bgp_info_delete(rn
, ri
); /* keep historical info */
2680 bgp_process(peer
->bgp
, rn
, afi
, safi
);
2683 static void bgp_rib_withdraw(struct bgp_node
*rn
, struct bgp_info
*ri
,
2684 struct peer
*peer
, afi_t afi
, safi_t safi
,
2685 struct prefix_rd
*prd
)
2687 /* apply dampening, if result is suppressed, we'll be retaining
2688 * the bgp_info in the RIB for historical reference.
2690 if (CHECK_FLAG(peer
->bgp
->af_flags
[afi
][safi
], BGP_CONFIG_DAMPENING
)
2691 && peer
->sort
== BGP_PEER_EBGP
)
2692 if ((bgp_damp_withdraw(ri
, rn
, afi
, safi
, 0))
2693 == BGP_DAMP_SUPPRESSED
) {
2694 bgp_aggregate_decrement(peer
->bgp
, &rn
->p
, ri
, afi
,
2700 if (safi
== SAFI_MPLS_VPN
) {
2701 struct bgp_node
*prn
= NULL
;
2702 struct bgp_table
*table
= NULL
;
2704 prn
= bgp_node_get(peer
->bgp
->rib
[afi
][safi
],
2705 (struct prefix
*)prd
);
2707 table
= (struct bgp_table
*)(prn
->info
);
2709 vnc_import_bgp_del_vnc_host_route_mode_resolve_nve(
2710 peer
->bgp
, prd
, table
, &rn
->p
, ri
);
2712 bgp_unlock_node(prn
);
2714 if ((afi
== AFI_IP
|| afi
== AFI_IP6
) && (safi
== SAFI_UNICAST
)) {
2715 if (CHECK_FLAG(ri
->flags
, BGP_INFO_SELECTED
)) {
2717 vnc_import_bgp_del_route(peer
->bgp
, &rn
->p
, ri
);
2718 vnc_import_bgp_exterior_del_route(peer
->bgp
, &rn
->p
,
2724 /* If this is an EVPN route, process for un-import. */
2725 if (safi
== SAFI_EVPN
)
2726 bgp_evpn_unimport_route(peer
->bgp
, afi
, safi
, &rn
->p
, ri
);
2728 bgp_rib_remove(rn
, ri
, peer
, afi
, safi
);
2731 struct bgp_info
*info_make(int type
, int sub_type
, unsigned short instance
,
2732 struct peer
*peer
, struct attr
*attr
,
2733 struct bgp_node
*rn
)
2735 struct bgp_info
*new;
2737 /* Make new BGP info. */
2738 new = XCALLOC(MTYPE_BGP_ROUTE
, sizeof(struct bgp_info
));
2740 new->instance
= instance
;
2741 new->sub_type
= sub_type
;
2744 new->uptime
= bgp_clock();
2746 new->addpath_tx_id
= ++peer
->bgp
->addpath_tx_id
;
2750 static void overlay_index_update(struct attr
*attr
,
2751 struct eth_segment_id
*eth_s_id
,
2752 union gw_addr
*gw_ip
)
2757 if (eth_s_id
== NULL
) {
2758 memset(&(attr
->evpn_overlay
.eth_s_id
), 0,
2759 sizeof(struct eth_segment_id
));
2761 memcpy(&(attr
->evpn_overlay
.eth_s_id
), eth_s_id
,
2762 sizeof(struct eth_segment_id
));
2764 if (gw_ip
== NULL
) {
2765 memset(&(attr
->evpn_overlay
.gw_ip
), 0, sizeof(union gw_addr
));
2767 memcpy(&(attr
->evpn_overlay
.gw_ip
), gw_ip
,
2768 sizeof(union gw_addr
));
2772 static bool overlay_index_equal(afi_t afi
, struct bgp_info
*info
,
2773 struct eth_segment_id
*eth_s_id
,
2774 union gw_addr
*gw_ip
)
2776 struct eth_segment_id
*info_eth_s_id
, *info_eth_s_id_remote
;
2777 union gw_addr
*info_gw_ip
, *info_gw_ip_remote
;
2780 if (afi
!= AFI_L2VPN
)
2783 memset(&temp
, 0, 16);
2784 info_eth_s_id
= (struct eth_segment_id
*)&temp
;
2785 info_gw_ip
= (union gw_addr
*)&temp
;
2786 if (eth_s_id
== NULL
&& gw_ip
== NULL
)
2789 info_eth_s_id
= &(info
->attr
->evpn_overlay
.eth_s_id
);
2790 info_gw_ip
= &(info
->attr
->evpn_overlay
.gw_ip
);
2793 info_gw_ip_remote
= (union gw_addr
*)&temp
;
2795 info_gw_ip_remote
= gw_ip
;
2796 if (eth_s_id
== NULL
)
2797 info_eth_s_id_remote
= (struct eth_segment_id
*)&temp
;
2799 info_eth_s_id_remote
= eth_s_id
;
2800 if (!memcmp(info_gw_ip
, info_gw_ip_remote
, sizeof(union gw_addr
)))
2802 return !memcmp(info_eth_s_id
, info_eth_s_id_remote
,
2803 sizeof(struct eth_segment_id
));
2806 /* Check if received nexthop is valid or not. */
2807 static int bgp_update_martian_nexthop(struct bgp
*bgp
, afi_t afi
, safi_t safi
,
2812 /* Only validated for unicast and multicast currently. */
2813 /* Also valid for EVPN where the nexthop is an IP address. */
2814 if (safi
!= SAFI_UNICAST
&& safi
!= SAFI_MULTICAST
&& safi
!= SAFI_EVPN
)
2817 /* If NEXT_HOP is present, validate it. */
2818 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_NEXT_HOP
)) {
2819 if (attr
->nexthop
.s_addr
== 0
2820 || IPV4_CLASS_DE(ntohl(attr
->nexthop
.s_addr
))
2821 || bgp_nexthop_self(bgp
, attr
->nexthop
))
2825 /* If MP_NEXTHOP is present, validate it. */
2826 /* Note: For IPv6 nexthops, we only validate the global (1st) nexthop;
2827 * there is code in bgp_attr.c to ignore the link-local (2nd) nexthop if
2828 * it is not an IPv6 link-local address.
2830 if (attr
->mp_nexthop_len
) {
2831 switch (attr
->mp_nexthop_len
) {
2832 case BGP_ATTR_NHLEN_IPV4
:
2833 case BGP_ATTR_NHLEN_VPNV4
:
2834 ret
= (attr
->mp_nexthop_global_in
.s_addr
== 0
2835 || IPV4_CLASS_DE(ntohl(
2836 attr
->mp_nexthop_global_in
.s_addr
))
2837 || bgp_nexthop_self(bgp
,
2838 attr
->mp_nexthop_global_in
));
2841 case BGP_ATTR_NHLEN_IPV6_GLOBAL
:
2842 case BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL
:
2843 case BGP_ATTR_NHLEN_VPNV6_GLOBAL
:
2844 ret
= (IN6_IS_ADDR_UNSPECIFIED(&attr
->mp_nexthop_global
)
2845 || IN6_IS_ADDR_LOOPBACK(&attr
->mp_nexthop_global
)
2846 || IN6_IS_ADDR_MULTICAST(
2847 &attr
->mp_nexthop_global
));
2859 int bgp_update(struct peer
*peer
, struct prefix
*p
, uint32_t addpath_id
,
2860 struct attr
*attr
, afi_t afi
, safi_t safi
, int type
,
2861 int sub_type
, struct prefix_rd
*prd
, mpls_label_t
*label
,
2862 uint32_t num_labels
, int soft_reconfig
,
2863 struct bgp_route_evpn
*evpn
)
2866 int aspath_loop_count
= 0;
2867 struct bgp_node
*rn
;
2869 struct attr new_attr
;
2870 struct attr
*attr_new
;
2871 struct bgp_info
*ri
;
2872 struct bgp_info
*new;
2873 struct bgp_info_extra
*extra
;
2875 char pfx_buf
[BGP_PRD_PATH_STRLEN
];
2877 int do_loop_check
= 1;
2878 int has_valid_label
= 0;
2880 int vnc_implicit_withdraw
= 0;
2884 memset(&new_attr
, 0, sizeof(struct attr
));
2885 new_attr
.label_index
= BGP_INVALID_LABEL_INDEX
;
2886 new_attr
.label
= MPLS_INVALID_LABEL
;
2889 rn
= bgp_afi_node_get(bgp
->rib
[afi
][safi
], afi
, safi
, p
, prd
);
2890 /* TODO: Check to see if we can get rid of "is_valid_label" */
2891 if (afi
== AFI_L2VPN
&& safi
== SAFI_EVPN
)
2892 has_valid_label
= (num_labels
> 0) ? 1 : 0;
2894 has_valid_label
= bgp_is_valid_label(label
);
2896 /* When peer's soft reconfiguration enabled. Record input packet in
2899 && CHECK_FLAG(peer
->af_flags
[afi
][safi
], PEER_FLAG_SOFT_RECONFIG
)
2900 && peer
!= bgp
->peer_self
)
2901 bgp_adj_in_set(rn
, peer
, attr
, addpath_id
);
2903 /* Check previously received route. */
2904 for (ri
= rn
->info
; ri
; ri
= ri
->next
)
2905 if (ri
->peer
== peer
&& ri
->type
== type
2906 && ri
->sub_type
== sub_type
2907 && ri
->addpath_rx_id
== addpath_id
)
2910 /* AS path local-as loop check. */
2911 if (peer
->change_local_as
) {
2912 if (peer
->allowas_in
[afi
][safi
])
2913 aspath_loop_count
= peer
->allowas_in
[afi
][safi
];
2914 else if (!CHECK_FLAG(peer
->flags
,
2915 PEER_FLAG_LOCAL_AS_NO_PREPEND
))
2916 aspath_loop_count
= 1;
2918 if (aspath_loop_check(attr
->aspath
, peer
->change_local_as
)
2919 > aspath_loop_count
) {
2920 reason
= "as-path contains our own AS;";
2925 /* If the peer is configured for "allowas-in origin" and the last ASN in
2927 * as-path is our ASN then we do not need to call aspath_loop_check
2929 if (CHECK_FLAG(peer
->af_flags
[afi
][safi
], PEER_FLAG_ALLOWAS_IN_ORIGIN
))
2930 if (aspath_get_last_as(attr
->aspath
) == bgp
->as
)
2933 /* AS path loop check. */
2934 if (do_loop_check
) {
2935 if (aspath_loop_check(attr
->aspath
, bgp
->as
)
2936 > peer
->allowas_in
[afi
][safi
]
2937 || (CHECK_FLAG(bgp
->config
, BGP_CONFIG_CONFEDERATION
)
2938 && aspath_loop_check(attr
->aspath
, bgp
->confed_id
)
2939 > peer
->allowas_in
[afi
][safi
])) {
2940 reason
= "as-path contains our own AS;";
2945 /* Route reflector originator ID check. */
2946 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID
)
2947 && IPV4_ADDR_SAME(&bgp
->router_id
, &attr
->originator_id
)) {
2948 reason
= "originator is us;";
2952 /* Route reflector cluster ID check. */
2953 if (bgp_cluster_filter(peer
, attr
)) {
2954 reason
= "reflected from the same cluster;";
2958 /* Apply incoming filter. */
2959 if (bgp_input_filter(peer
, p
, attr
, afi
, safi
) == FILTER_DENY
) {
2964 bgp_attr_dup(&new_attr
, attr
);
2966 /* Apply incoming route-map.
2967 * NB: new_attr may now contain newly allocated values from route-map
2969 * commands, so we need bgp_attr_flush in the error paths, until we
2971 * the attr (which takes over the memory references) */
2972 if (bgp_input_modifier(peer
, p
, &new_attr
, afi
, safi
, NULL
)
2974 reason
= "route-map;";
2975 bgp_attr_flush(&new_attr
);
2979 if (peer
->sort
== BGP_PEER_EBGP
) {
2981 /* If we receive the graceful-shutdown community from an eBGP
2982 * peer we must lower local-preference */
2983 if (new_attr
.community
2984 && community_include(new_attr
.community
, COMMUNITY_GSHUT
)) {
2985 new_attr
.flag
|= ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
);
2986 new_attr
.local_pref
= BGP_GSHUT_LOCAL_PREF
;
2988 /* If graceful-shutdown is configured then add the GSHUT
2989 * community to all paths received from eBGP peers */
2990 } else if (bgp_flag_check(peer
->bgp
,
2991 BGP_FLAG_GRACEFUL_SHUTDOWN
)) {
2992 bgp_attr_add_gshut_community(&new_attr
);
2996 /* next hop check. */
2997 if (!CHECK_FLAG(peer
->flags
, PEER_FLAG_IS_RFAPI_HD
)
2998 && bgp_update_martian_nexthop(bgp
, afi
, safi
, &new_attr
)) {
2999 reason
= "martian or self next-hop;";
3000 bgp_attr_flush(&new_attr
);
3004 attr_new
= bgp_attr_intern(&new_attr
);
3006 /* If the update is implicit withdraw. */
3008 ri
->uptime
= bgp_clock();
3009 same_attr
= attrhash_cmp(ri
->attr
, attr_new
);
3011 /* Same attribute comes in. */
3012 if (!CHECK_FLAG(ri
->flags
, BGP_INFO_REMOVED
)
3013 && attrhash_cmp(ri
->attr
, attr_new
)
3014 && (!has_valid_label
3015 || memcmp(&(bgp_info_extra_get(ri
))->label
, label
,
3016 num_labels
* sizeof(mpls_label_t
))
3018 && (overlay_index_equal(
3019 afi
, ri
, evpn
== NULL
? NULL
: &evpn
->eth_s_id
,
3020 evpn
== NULL
? NULL
: &evpn
->gw_ip
))) {
3021 if (CHECK_FLAG(bgp
->af_flags
[afi
][safi
],
3022 BGP_CONFIG_DAMPENING
)
3023 && peer
->sort
== BGP_PEER_EBGP
3024 && CHECK_FLAG(ri
->flags
, BGP_INFO_HISTORY
)) {
3025 if (bgp_debug_update(peer
, p
, NULL
, 1)) {
3026 bgp_debug_rdpfxpath2str(
3027 afi
, safi
, prd
, p
, label
,
3028 num_labels
, addpath_id
? 1 : 0,
3029 addpath_id
, pfx_buf
,
3031 zlog_debug("%s rcvd %s", peer
->host
,
3035 if (bgp_damp_update(ri
, rn
, afi
, safi
)
3036 != BGP_DAMP_SUPPRESSED
) {
3037 bgp_aggregate_increment(bgp
, p
, ri
, afi
,
3039 bgp_process(bgp
, rn
, afi
, safi
);
3041 } else /* Duplicate - odd */
3043 if (bgp_debug_update(peer
, p
, NULL
, 1)) {
3044 if (!peer
->rcvd_attr_printed
) {
3046 "%s rcvd UPDATE w/ attr: %s",
3048 peer
->rcvd_attr_str
);
3049 peer
->rcvd_attr_printed
= 1;
3052 bgp_debug_rdpfxpath2str(
3053 afi
, safi
, prd
, p
, label
,
3054 num_labels
, addpath_id
? 1 : 0,
3055 addpath_id
, pfx_buf
,
3058 "%s rcvd %s...duplicate ignored",
3059 peer
->host
, pfx_buf
);
3062 /* graceful restart STALE flag unset. */
3063 if (CHECK_FLAG(ri
->flags
, BGP_INFO_STALE
)) {
3064 bgp_info_unset_flag(rn
, ri
,
3066 bgp_process(bgp
, rn
, afi
, safi
);
3070 bgp_unlock_node(rn
);
3071 bgp_attr_unintern(&attr_new
);
3076 /* Withdraw/Announce before we fully processed the withdraw */
3077 if (CHECK_FLAG(ri
->flags
, BGP_INFO_REMOVED
)) {
3078 if (bgp_debug_update(peer
, p
, NULL
, 1)) {
3079 bgp_debug_rdpfxpath2str(
3080 afi
, safi
, prd
, p
, label
, num_labels
,
3081 addpath_id
? 1 : 0, addpath_id
, pfx_buf
,
3084 "%s rcvd %s, flapped quicker than processing",
3085 peer
->host
, pfx_buf
);
3088 bgp_info_restore(rn
, ri
);
3091 /* Received Logging. */
3092 if (bgp_debug_update(peer
, p
, NULL
, 1)) {
3093 bgp_debug_rdpfxpath2str(afi
, safi
, prd
, p
, label
,
3094 num_labels
, addpath_id
? 1 : 0,
3095 addpath_id
, pfx_buf
,
3097 zlog_debug("%s rcvd %s", peer
->host
, pfx_buf
);
3100 /* graceful restart STALE flag unset. */
3101 if (CHECK_FLAG(ri
->flags
, BGP_INFO_STALE
))
3102 bgp_info_unset_flag(rn
, ri
, BGP_INFO_STALE
);
3104 /* The attribute is changed. */
3105 bgp_info_set_flag(rn
, ri
, BGP_INFO_ATTR_CHANGED
);
3107 /* implicit withdraw, decrement aggregate and pcount here.
3108 * only if update is accepted, they'll increment below.
3110 bgp_aggregate_decrement(bgp
, p
, ri
, afi
, safi
);
3112 /* Update bgp route dampening information. */
3113 if (CHECK_FLAG(bgp
->af_flags
[afi
][safi
], BGP_CONFIG_DAMPENING
)
3114 && peer
->sort
== BGP_PEER_EBGP
) {
3115 /* This is implicit withdraw so we should update
3118 if (!CHECK_FLAG(ri
->flags
, BGP_INFO_HISTORY
))
3119 bgp_damp_withdraw(ri
, rn
, afi
, safi
, 1);
3122 if (safi
== SAFI_MPLS_VPN
) {
3123 struct bgp_node
*prn
= NULL
;
3124 struct bgp_table
*table
= NULL
;
3126 prn
= bgp_node_get(bgp
->rib
[afi
][safi
],
3127 (struct prefix
*)prd
);
3129 table
= (struct bgp_table
*)(prn
->info
);
3131 vnc_import_bgp_del_vnc_host_route_mode_resolve_nve(
3132 bgp
, prd
, table
, p
, ri
);
3134 bgp_unlock_node(prn
);
3136 if ((afi
== AFI_IP
|| afi
== AFI_IP6
)
3137 && (safi
== SAFI_UNICAST
)) {
3138 if (CHECK_FLAG(ri
->flags
, BGP_INFO_SELECTED
)) {
3140 * Implicit withdraw case.
3142 ++vnc_implicit_withdraw
;
3143 vnc_import_bgp_del_route(bgp
, p
, ri
);
3144 vnc_import_bgp_exterior_del_route(bgp
, p
, ri
);
3149 /* Special handling for EVPN update of an existing route. If the
3150 * extended community attribute has changed, we need to
3152 * the route using its existing extended community. It will be
3153 * subsequently processed for import with the new extended
3156 if (safi
== SAFI_EVPN
&& !same_attr
) {
3158 & ATTR_FLAG_BIT(BGP_ATTR_EXT_COMMUNITIES
))
3160 & ATTR_FLAG_BIT(BGP_ATTR_EXT_COMMUNITIES
))) {
3163 cmp
= ecommunity_cmp(ri
->attr
->ecommunity
,
3164 attr_new
->ecommunity
);
3166 if (bgp_debug_update(peer
, p
, NULL
, 1))
3168 "Change in EXT-COMM, existing %s new %s",
3170 ri
->attr
->ecommunity
),
3172 attr_new
->ecommunity
));
3173 bgp_evpn_unimport_route(bgp
, afi
, safi
,
3179 /* Update to new attribute. */
3180 bgp_attr_unintern(&ri
->attr
);
3181 ri
->attr
= attr_new
;
3183 /* Update MPLS label */
3184 if (has_valid_label
) {
3185 extra
= bgp_info_extra_get(ri
);
3186 memcpy(&extra
->label
, label
,
3187 num_labels
* sizeof(mpls_label_t
));
3188 extra
->num_labels
= num_labels
;
3189 if (!(afi
== AFI_L2VPN
&& safi
== SAFI_EVPN
))
3190 bgp_set_valid_label(&extra
->label
[0]);
3194 if ((afi
== AFI_IP
|| afi
== AFI_IP6
)
3195 && (safi
== SAFI_UNICAST
)) {
3196 if (vnc_implicit_withdraw
) {
3198 * Add back the route with its new attributes
3200 * The route is still selected, until the route
3202 * queued by bgp_process actually runs. We have
3204 * update to the VNC side immediately to avoid
3206 * configuration changes (e.g., route-map
3208 * trigger re-importation of the entire RIB.
3210 vnc_import_bgp_add_route(bgp
, p
, ri
);
3211 vnc_import_bgp_exterior_add_route(bgp
, p
, ri
);
3215 /* Update Overlay Index */
3216 if (afi
== AFI_L2VPN
) {
3217 overlay_index_update(
3218 ri
->attr
, evpn
== NULL
? NULL
: &evpn
->eth_s_id
,
3219 evpn
== NULL
? NULL
: &evpn
->gw_ip
);
3222 /* Update bgp route dampening information. */
3223 if (CHECK_FLAG(bgp
->af_flags
[afi
][safi
], BGP_CONFIG_DAMPENING
)
3224 && peer
->sort
== BGP_PEER_EBGP
) {
3225 /* Now we do normal update dampening. */
3226 ret
= bgp_damp_update(ri
, rn
, afi
, safi
);
3227 if (ret
== BGP_DAMP_SUPPRESSED
) {
3228 bgp_unlock_node(rn
);
3233 /* Nexthop reachability check - for unicast and
3234 * labeled-unicast.. */
3235 if ((afi
== AFI_IP
|| afi
== AFI_IP6
)
3236 && (safi
== SAFI_UNICAST
|| safi
== SAFI_LABELED_UNICAST
)) {
3237 if (peer
->sort
== BGP_PEER_EBGP
&& peer
->ttl
== 1
3238 && !CHECK_FLAG(peer
->flags
,
3239 PEER_FLAG_DISABLE_CONNECTED_CHECK
)
3241 bgp
, BGP_FLAG_DISABLE_NH_CONNECTED_CHK
))
3246 struct bgp
*bgp_nexthop
= bgp
;
3248 if (ri
->extra
&& ri
->extra
->bgp_orig
)
3249 bgp_nexthop
= ri
->extra
->bgp_orig
;
3251 if (bgp_find_or_add_nexthop(bgp
, bgp_nexthop
, afi
,
3252 ri
, NULL
, connected
)
3253 || CHECK_FLAG(peer
->flags
, PEER_FLAG_IS_RFAPI_HD
))
3254 bgp_info_set_flag(rn
, ri
, BGP_INFO_VALID
);
3256 if (BGP_DEBUG(nht
, NHT
)) {
3257 char buf1
[INET6_ADDRSTRLEN
];
3259 (const void *)&attr_new
3261 buf1
, INET6_ADDRSTRLEN
);
3262 zlog_debug("%s(%s): NH unresolved",
3263 __FUNCTION__
, buf1
);
3265 bgp_info_unset_flag(rn
, ri
, BGP_INFO_VALID
);
3268 bgp_info_set_flag(rn
, ri
, BGP_INFO_VALID
);
3271 if (safi
== SAFI_MPLS_VPN
) {
3272 struct bgp_node
*prn
= NULL
;
3273 struct bgp_table
*table
= NULL
;
3275 prn
= bgp_node_get(bgp
->rib
[afi
][safi
],
3276 (struct prefix
*)prd
);
3278 table
= (struct bgp_table
*)(prn
->info
);
3280 vnc_import_bgp_add_vnc_host_route_mode_resolve_nve(
3281 bgp
, prd
, table
, p
, ri
);
3283 bgp_unlock_node(prn
);
3287 /* If this is an EVPN route and some attribute has changed,
3289 * route for import. If the extended community has changed, we
3291 * have done the un-import earlier and the import would result
3293 * route getting injected into appropriate L2 VNIs. If it is
3295 * some other attribute change, the import will result in
3297 * the attributes for the route in the VNI(s).
3299 if (safi
== SAFI_EVPN
&& !same_attr
)
3300 bgp_evpn_import_route(bgp
, afi
, safi
, p
, ri
);
3302 /* Process change. */
3303 bgp_aggregate_increment(bgp
, p
, ri
, afi
, safi
);
3305 bgp_process(bgp
, rn
, afi
, safi
);
3306 bgp_unlock_node(rn
);
3308 if (SAFI_UNICAST
== safi
3309 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
3310 || bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
3312 vpn_leak_from_vrf_update(bgp_get_default(), bgp
, ri
);
3314 if ((SAFI_MPLS_VPN
== safi
)
3315 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
3317 vpn_leak_to_vrf_update(bgp
, ri
);
3321 if (SAFI_MPLS_VPN
== safi
) {
3322 mpls_label_t label_decoded
= decode_label(label
);
3324 rfapiProcessUpdate(peer
, NULL
, p
, prd
, attr
, afi
, safi
,
3325 type
, sub_type
, &label_decoded
);
3327 if (SAFI_ENCAP
== safi
) {
3328 rfapiProcessUpdate(peer
, NULL
, p
, prd
, attr
, afi
, safi
,
3329 type
, sub_type
, NULL
);
3334 } // End of implicit withdraw
3336 /* Received Logging. */
3337 if (bgp_debug_update(peer
, p
, NULL
, 1)) {
3338 if (!peer
->rcvd_attr_printed
) {
3339 zlog_debug("%s rcvd UPDATE w/ attr: %s", peer
->host
,
3340 peer
->rcvd_attr_str
);
3341 peer
->rcvd_attr_printed
= 1;
3344 bgp_debug_rdpfxpath2str(afi
, safi
, prd
, p
, label
, num_labels
,
3345 addpath_id
? 1 : 0, addpath_id
, pfx_buf
,
3347 zlog_debug("%s rcvd %s", peer
->host
, pfx_buf
);
3350 /* Make new BGP info. */
3351 new = info_make(type
, sub_type
, 0, peer
, attr_new
, rn
);
3353 /* Update MPLS label */
3354 if (has_valid_label
) {
3355 extra
= bgp_info_extra_get(new);
3356 memcpy(&extra
->label
, label
, num_labels
* sizeof(mpls_label_t
));
3357 extra
->num_labels
= num_labels
;
3358 if (!(afi
== AFI_L2VPN
&& safi
== SAFI_EVPN
))
3359 bgp_set_valid_label(&extra
->label
[0]);
3362 /* Update Overlay Index */
3363 if (afi
== AFI_L2VPN
) {
3364 overlay_index_update(new->attr
,
3365 evpn
== NULL
? NULL
: &evpn
->eth_s_id
,
3366 evpn
== NULL
? NULL
: &evpn
->gw_ip
);
3368 /* Nexthop reachability check. */
3369 if ((afi
== AFI_IP
|| afi
== AFI_IP6
)
3370 && (safi
== SAFI_UNICAST
|| safi
== SAFI_LABELED_UNICAST
)) {
3371 if (peer
->sort
== BGP_PEER_EBGP
&& peer
->ttl
== 1
3372 && !CHECK_FLAG(peer
->flags
,
3373 PEER_FLAG_DISABLE_CONNECTED_CHECK
)
3374 && !bgp_flag_check(bgp
, BGP_FLAG_DISABLE_NH_CONNECTED_CHK
))
3379 if (bgp_find_or_add_nexthop(bgp
, bgp
, afi
, new, NULL
, connected
)
3380 || CHECK_FLAG(peer
->flags
, PEER_FLAG_IS_RFAPI_HD
))
3381 bgp_info_set_flag(rn
, new, BGP_INFO_VALID
);
3383 if (BGP_DEBUG(nht
, NHT
)) {
3384 char buf1
[INET6_ADDRSTRLEN
];
3386 (const void *)&attr_new
->nexthop
,
3387 buf1
, INET6_ADDRSTRLEN
);
3388 zlog_debug("%s(%s): NH unresolved",
3389 __FUNCTION__
, buf1
);
3391 bgp_info_unset_flag(rn
, new, BGP_INFO_VALID
);
3394 bgp_info_set_flag(rn
, new, BGP_INFO_VALID
);
3397 new->addpath_rx_id
= addpath_id
;
3399 /* Increment prefix */
3400 bgp_aggregate_increment(bgp
, p
, new, afi
, safi
);
3402 /* Register new BGP information. */
3403 bgp_info_add(rn
, new);
3405 /* route_node_get lock */
3406 bgp_unlock_node(rn
);
3409 if (safi
== SAFI_MPLS_VPN
) {
3410 struct bgp_node
*prn
= NULL
;
3411 struct bgp_table
*table
= NULL
;
3413 prn
= bgp_node_get(bgp
->rib
[afi
][safi
], (struct prefix
*)prd
);
3415 table
= (struct bgp_table
*)(prn
->info
);
3417 vnc_import_bgp_add_vnc_host_route_mode_resolve_nve(
3418 bgp
, prd
, table
, p
, new);
3420 bgp_unlock_node(prn
);
3424 /* If maximum prefix count is configured and current prefix
3426 if (bgp_maximum_prefix_overflow(peer
, afi
, safi
, 0))
3429 /* If this is an EVPN route, process for import. */
3430 if (safi
== SAFI_EVPN
)
3431 bgp_evpn_import_route(bgp
, afi
, safi
, p
, new);
3433 /* Process change. */
3434 bgp_process(bgp
, rn
, afi
, safi
);
3436 if (SAFI_UNICAST
== safi
3437 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
3438 || bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
3439 vpn_leak_from_vrf_update(bgp_get_default(), bgp
, new);
3441 if ((SAFI_MPLS_VPN
== safi
)
3442 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
3444 vpn_leak_to_vrf_update(bgp
, new);
3447 if (SAFI_MPLS_VPN
== safi
) {
3448 mpls_label_t label_decoded
= decode_label(label
);
3450 rfapiProcessUpdate(peer
, NULL
, p
, prd
, attr
, afi
, safi
, type
,
3451 sub_type
, &label_decoded
);
3453 if (SAFI_ENCAP
== safi
) {
3454 rfapiProcessUpdate(peer
, NULL
, p
, prd
, attr
, afi
, safi
, type
,
3461 /* This BGP update is filtered. Log the reason then update BGP
3464 if (bgp_debug_update(peer
, p
, NULL
, 1)) {
3465 if (!peer
->rcvd_attr_printed
) {
3466 zlog_debug("%s rcvd UPDATE w/ attr: %s", peer
->host
,
3467 peer
->rcvd_attr_str
);
3468 peer
->rcvd_attr_printed
= 1;
3471 bgp_debug_rdpfxpath2str(afi
, safi
, prd
, p
, label
, num_labels
,
3472 addpath_id
? 1 : 0, addpath_id
, pfx_buf
,
3474 zlog_debug("%s rcvd UPDATE about %s -- DENIED due to: %s",
3475 peer
->host
, pfx_buf
, reason
);
3479 /* If this is an EVPN route, un-import it as it is now filtered.
3481 if (safi
== SAFI_EVPN
)
3482 bgp_evpn_unimport_route(bgp
, afi
, safi
, p
, ri
);
3484 if (SAFI_UNICAST
== safi
3485 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
3486 || bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
3488 vpn_leak_from_vrf_withdraw(bgp_get_default(), bgp
, ri
);
3490 if ((SAFI_MPLS_VPN
== safi
)
3491 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
3493 vpn_leak_to_vrf_withdraw(bgp
, ri
);
3496 bgp_rib_remove(rn
, ri
, peer
, afi
, safi
);
3499 bgp_unlock_node(rn
);
3503 * Filtered update is treated as an implicit withdrawal (see
3505 * a few lines above)
3507 if ((SAFI_MPLS_VPN
== safi
) || (SAFI_ENCAP
== safi
)) {
3508 rfapiProcessWithdraw(peer
, NULL
, p
, prd
, NULL
, afi
, safi
, type
,
3516 int bgp_withdraw(struct peer
*peer
, struct prefix
*p
, uint32_t addpath_id
,
3517 struct attr
*attr
, afi_t afi
, safi_t safi
, int type
,
3518 int sub_type
, struct prefix_rd
*prd
, mpls_label_t
*label
,
3519 uint32_t num_labels
, struct bgp_route_evpn
*evpn
)
3522 char pfx_buf
[BGP_PRD_PATH_STRLEN
];
3523 struct bgp_node
*rn
;
3524 struct bgp_info
*ri
;
3527 if ((SAFI_MPLS_VPN
== safi
) || (SAFI_ENCAP
== safi
)) {
3528 rfapiProcessWithdraw(peer
, NULL
, p
, prd
, NULL
, afi
, safi
, type
,
3536 rn
= bgp_afi_node_get(bgp
->rib
[afi
][safi
], afi
, safi
, p
, prd
);
3538 /* If peer is soft reconfiguration enabled. Record input packet for
3539 * further calculation.
3541 * Cisco IOS 12.4(24)T4 on session establishment sends withdraws for all
3542 * routes that are filtered. This tanks out Quagga RS pretty badly due
3544 * the iteration over all RS clients.
3545 * Since we need to remove the entry from adj_in anyway, do that first
3547 * if there was no entry, we don't need to do anything more.
3549 if (CHECK_FLAG(peer
->af_flags
[afi
][safi
], PEER_FLAG_SOFT_RECONFIG
)
3550 && peer
!= bgp
->peer_self
)
3551 if (!bgp_adj_in_unset(rn
, peer
, addpath_id
)) {
3552 if (bgp_debug_update(peer
, p
, NULL
, 1)) {
3553 bgp_debug_rdpfxpath2str(
3554 afi
, safi
, prd
, p
, label
, num_labels
,
3555 addpath_id
? 1 : 0, addpath_id
, pfx_buf
,
3558 "%s withdrawing route %s not in adj-in",
3559 peer
->host
, pfx_buf
);
3561 bgp_unlock_node(rn
);
3565 /* Lookup withdrawn route. */
3566 for (ri
= rn
->info
; ri
; ri
= ri
->next
)
3567 if (ri
->peer
== peer
&& ri
->type
== type
3568 && ri
->sub_type
== sub_type
3569 && ri
->addpath_rx_id
== addpath_id
)
3573 if (bgp_debug_update(peer
, p
, NULL
, 1)) {
3574 bgp_debug_rdpfxpath2str(afi
, safi
, prd
, p
, label
, num_labels
,
3575 addpath_id
? 1 : 0, addpath_id
, pfx_buf
,
3577 zlog_debug("%s rcvd UPDATE about %s -- withdrawn", peer
->host
,
3581 /* Withdraw specified route from routing table. */
3582 if (ri
&& !CHECK_FLAG(ri
->flags
, BGP_INFO_HISTORY
)) {
3583 bgp_rib_withdraw(rn
, ri
, peer
, afi
, safi
, prd
);
3584 if (SAFI_UNICAST
== safi
3585 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
3586 || bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
3587 vpn_leak_from_vrf_withdraw(bgp_get_default(), bgp
, ri
);
3589 if ((SAFI_MPLS_VPN
== safi
)
3590 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
3592 vpn_leak_to_vrf_withdraw(bgp
, ri
);
3594 } else if (bgp_debug_update(peer
, p
, NULL
, 1)) {
3595 bgp_debug_rdpfxpath2str(afi
, safi
, prd
, p
, label
, num_labels
,
3596 addpath_id
? 1 : 0, addpath_id
, pfx_buf
,
3598 zlog_debug("%s Can't find the route %s", peer
->host
, pfx_buf
);
3601 /* Unlock bgp_node_get() lock. */
3602 bgp_unlock_node(rn
);
3607 void bgp_default_originate(struct peer
*peer
, afi_t afi
, safi_t safi
,
3610 struct update_subgroup
*subgrp
;
3611 subgrp
= peer_subgroup(peer
, afi
, safi
);
3612 subgroup_default_originate(subgrp
, withdraw
);
3617 * bgp_stop_announce_route_timer
3619 void bgp_stop_announce_route_timer(struct peer_af
*paf
)
3621 if (!paf
->t_announce_route
)
3624 THREAD_TIMER_OFF(paf
->t_announce_route
);
3628 * bgp_announce_route_timer_expired
3630 * Callback that is invoked when the route announcement timer for a
3633 static int bgp_announce_route_timer_expired(struct thread
*t
)
3635 struct peer_af
*paf
;
3638 paf
= THREAD_ARG(t
);
3641 if (peer
->status
!= Established
)
3644 if (!peer
->afc_nego
[paf
->afi
][paf
->safi
])
3647 peer_af_announce_route(paf
, 1);
3652 * bgp_announce_route
3654 * *Triggers* announcement of routes of a given AFI/SAFI to a peer.
3656 void bgp_announce_route(struct peer
*peer
, afi_t afi
, safi_t safi
)
3658 struct peer_af
*paf
;
3659 struct update_subgroup
*subgrp
;
3661 paf
= peer_af_find(peer
, afi
, safi
);
3664 subgrp
= PAF_SUBGRP(paf
);
3667 * Ignore if subgroup doesn't exist (implies AF is not negotiated)
3668 * or a refresh has already been triggered.
3670 if (!subgrp
|| paf
->t_announce_route
)
3674 * Start a timer to stagger/delay the announce. This serves
3675 * two purposes - announcement can potentially be combined for
3676 * multiple peers and the announcement doesn't happen in the
3679 thread_add_timer_msec(bm
->master
, bgp_announce_route_timer_expired
, paf
,
3680 (subgrp
->peer_count
== 1)
3681 ? BGP_ANNOUNCE_ROUTE_SHORT_DELAY_MS
3682 : BGP_ANNOUNCE_ROUTE_DELAY_MS
,
3683 &paf
->t_announce_route
);
3687 * Announce routes from all AF tables to a peer.
3689 * This should ONLY be called when there is a need to refresh the
3690 * routes to the peer based on a policy change for this peer alone
3691 * or a route refresh request received from the peer.
3692 * The operation will result in splitting the peer from its existing
3693 * subgroups and putting it in new subgroups.
3695 void bgp_announce_route_all(struct peer
*peer
)
3700 FOREACH_AFI_SAFI (afi
, safi
)
3701 bgp_announce_route(peer
, afi
, safi
);
3704 static void bgp_soft_reconfig_table(struct peer
*peer
, afi_t afi
, safi_t safi
,
3705 struct bgp_table
*table
,
3706 struct prefix_rd
*prd
)
3709 struct bgp_node
*rn
;
3710 struct bgp_adj_in
*ain
;
3713 table
= peer
->bgp
->rib
[afi
][safi
];
3715 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
))
3716 for (ain
= rn
->adj_in
; ain
; ain
= ain
->next
) {
3717 if (ain
->peer
!= peer
)
3720 struct bgp_info
*ri
= rn
->info
;
3721 uint32_t num_labels
= 0;
3722 mpls_label_t
*label_pnt
= NULL
;
3724 if (ri
&& ri
->extra
)
3725 num_labels
= ri
->extra
->num_labels
;
3727 label_pnt
= &ri
->extra
->label
[0];
3729 ret
= bgp_update(peer
, &rn
->p
, ain
->addpath_rx_id
,
3730 ain
->attr
, afi
, safi
, ZEBRA_ROUTE_BGP
,
3731 BGP_ROUTE_NORMAL
, prd
, label_pnt
,
3732 num_labels
, 1, NULL
);
3735 bgp_unlock_node(rn
);
3741 void bgp_soft_reconfig_in(struct peer
*peer
, afi_t afi
, safi_t safi
)
3743 struct bgp_node
*rn
;
3744 struct bgp_table
*table
;
3746 if (peer
->status
!= Established
)
3749 if ((safi
!= SAFI_MPLS_VPN
) && (safi
!= SAFI_ENCAP
)
3750 && (safi
!= SAFI_EVPN
))
3751 bgp_soft_reconfig_table(peer
, afi
, safi
, NULL
, NULL
);
3753 for (rn
= bgp_table_top(peer
->bgp
->rib
[afi
][safi
]); rn
;
3754 rn
= bgp_route_next(rn
))
3755 if ((table
= rn
->info
) != NULL
) {
3756 struct prefix_rd prd
;
3757 prd
.family
= AF_UNSPEC
;
3759 memcpy(&prd
.val
, rn
->p
.u
.val
, 8);
3761 bgp_soft_reconfig_table(peer
, afi
, safi
, table
,
3767 struct bgp_clear_node_queue
{
3768 struct bgp_node
*rn
;
3771 static wq_item_status
bgp_clear_route_node(struct work_queue
*wq
, void *data
)
3773 struct bgp_clear_node_queue
*cnq
= data
;
3774 struct bgp_node
*rn
= cnq
->rn
;
3775 struct peer
*peer
= wq
->spec
.data
;
3776 struct bgp_info
*ri
;
3778 afi_t afi
= bgp_node_table(rn
)->afi
;
3779 safi_t safi
= bgp_node_table(rn
)->safi
;
3784 /* It is possible that we have multiple paths for a prefix from a peer
3785 * if that peer is using AddPath.
3787 for (ri
= rn
->info
; ri
; ri
= ri
->next
) {
3788 if (ri
->peer
!= peer
)
3791 /* graceful restart STALE flag set. */
3792 if (CHECK_FLAG(peer
->sflags
, PEER_STATUS_NSF_WAIT
)
3793 && peer
->nsf
[afi
][safi
]
3794 && !CHECK_FLAG(ri
->flags
, BGP_INFO_STALE
)
3795 && !CHECK_FLAG(ri
->flags
, BGP_INFO_UNUSEABLE
))
3796 bgp_info_set_flag(rn
, ri
, BGP_INFO_STALE
);
3798 /* If this is an EVPN route, process for
3800 if (safi
== SAFI_EVPN
)
3801 bgp_evpn_unimport_route(bgp
, afi
, safi
,
3803 /* Handle withdraw for VRF route-leaking and L3VPN */
3804 if (SAFI_UNICAST
== safi
3805 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
||
3806 bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
3807 vpn_leak_from_vrf_withdraw(bgp_get_default(),
3810 if (SAFI_MPLS_VPN
== safi
&&
3811 bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
) {
3812 vpn_leak_to_vrf_withdraw(bgp
, ri
);
3815 bgp_rib_remove(rn
, ri
, peer
, afi
, safi
);
3821 static void bgp_clear_node_queue_del(struct work_queue
*wq
, void *data
)
3823 struct bgp_clear_node_queue
*cnq
= data
;
3824 struct bgp_node
*rn
= cnq
->rn
;
3825 struct bgp_table
*table
= bgp_node_table(rn
);
3827 bgp_unlock_node(rn
);
3828 bgp_table_unlock(table
);
3829 XFREE(MTYPE_BGP_CLEAR_NODE_QUEUE
, cnq
);
3832 static void bgp_clear_node_complete(struct work_queue
*wq
)
3834 struct peer
*peer
= wq
->spec
.data
;
3836 /* Tickle FSM to start moving again */
3837 BGP_EVENT_ADD(peer
, Clearing_Completed
);
3839 peer_unlock(peer
); /* bgp_clear_route */
3842 static void bgp_clear_node_queue_init(struct peer
*peer
)
3844 char wname
[sizeof("clear xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx")];
3846 snprintf(wname
, sizeof(wname
), "clear %s", peer
->host
);
3847 #undef CLEAR_QUEUE_NAME_LEN
3849 peer
->clear_node_queue
= work_queue_new(bm
->master
, wname
);
3850 peer
->clear_node_queue
->spec
.hold
= 10;
3851 peer
->clear_node_queue
->spec
.workfunc
= &bgp_clear_route_node
;
3852 peer
->clear_node_queue
->spec
.del_item_data
= &bgp_clear_node_queue_del
;
3853 peer
->clear_node_queue
->spec
.completion_func
= &bgp_clear_node_complete
;
3854 peer
->clear_node_queue
->spec
.max_retries
= 0;
3856 /* we only 'lock' this peer reference when the queue is actually active
3858 peer
->clear_node_queue
->spec
.data
= peer
;
3861 static void bgp_clear_route_table(struct peer
*peer
, afi_t afi
, safi_t safi
,
3862 struct bgp_table
*table
)
3864 struct bgp_node
*rn
;
3865 int force
= bm
->process_main_queue
? 0 : 1;
3868 table
= peer
->bgp
->rib
[afi
][safi
];
3870 /* If still no table => afi/safi isn't configured at all or smth. */
3874 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
)) {
3875 struct bgp_info
*ri
, *next
;
3876 struct bgp_adj_in
*ain
;
3877 struct bgp_adj_in
*ain_next
;
3879 /* XXX:TODO: This is suboptimal, every non-empty route_node is
3880 * queued for every clearing peer, regardless of whether it is
3881 * relevant to the peer at hand.
3883 * Overview: There are 3 different indices which need to be
3884 * scrubbed, potentially, when a peer is removed:
3886 * 1 peer's routes visible via the RIB (ie accepted routes)
3887 * 2 peer's routes visible by the (optional) peer's adj-in index
3888 * 3 other routes visible by the peer's adj-out index
3890 * 3 there is no hurry in scrubbing, once the struct peer is
3891 * removed from bgp->peer, we could just GC such deleted peer's
3892 * adj-outs at our leisure.
3894 * 1 and 2 must be 'scrubbed' in some way, at least made
3895 * invisible via RIB index before peer session is allowed to be
3896 * brought back up. So one needs to know when such a 'search' is
3901 * - there'd be a single global queue or a single RIB walker
3902 * - rather than tracking which route_nodes still need to be
3903 * examined on a peer basis, we'd track which peers still
3906 * Given that our per-peer prefix-counts now should be reliable,
3907 * this may actually be achievable. It doesn't seem to be a huge
3908 * problem at this time,
3910 * It is possible that we have multiple paths for a prefix from
3912 * if that peer is using AddPath.
3916 ain_next
= ain
->next
;
3918 if (ain
->peer
== peer
) {
3919 bgp_adj_in_remove(rn
, ain
);
3920 bgp_unlock_node(rn
);
3926 for (ri
= rn
->info
; ri
; ri
= next
) {
3928 if (ri
->peer
!= peer
)
3932 bgp_info_reap(rn
, ri
);
3934 struct bgp_clear_node_queue
*cnq
;
3936 /* both unlocked in bgp_clear_node_queue_del */
3937 bgp_table_lock(bgp_node_table(rn
));
3940 MTYPE_BGP_CLEAR_NODE_QUEUE
,
3941 sizeof(struct bgp_clear_node_queue
));
3943 work_queue_add(peer
->clear_node_queue
, cnq
);
3951 void bgp_clear_route(struct peer
*peer
, afi_t afi
, safi_t safi
)
3953 struct bgp_node
*rn
;
3954 struct bgp_table
*table
;
3956 if (peer
->clear_node_queue
== NULL
)
3957 bgp_clear_node_queue_init(peer
);
3959 /* bgp_fsm.c keeps sessions in state Clearing, not transitioning to
3960 * Idle until it receives a Clearing_Completed event. This protects
3961 * against peers which flap faster than we can we clear, which could
3964 * a) race with routes from the new session being installed before
3965 * clear_route_node visits the node (to delete the route of that
3967 * b) resource exhaustion, clear_route_node likely leads to an entry
3968 * on the process_main queue. Fast-flapping could cause that queue
3972 /* lock peer in assumption that clear-node-queue will get nodes; if so,
3973 * the unlock will happen upon work-queue completion; other wise, the
3974 * unlock happens at the end of this function.
3976 if (!peer
->clear_node_queue
->thread
)
3979 if (safi
!= SAFI_MPLS_VPN
&& safi
!= SAFI_ENCAP
&& safi
!= SAFI_EVPN
)
3980 bgp_clear_route_table(peer
, afi
, safi
, NULL
);
3982 for (rn
= bgp_table_top(peer
->bgp
->rib
[afi
][safi
]); rn
;
3983 rn
= bgp_route_next(rn
))
3984 if ((table
= rn
->info
) != NULL
)
3985 bgp_clear_route_table(peer
, afi
, safi
, table
);
3987 /* unlock if no nodes got added to the clear-node-queue. */
3988 if (!peer
->clear_node_queue
->thread
)
3992 void bgp_clear_route_all(struct peer
*peer
)
3997 FOREACH_AFI_SAFI (afi
, safi
)
3998 bgp_clear_route(peer
, afi
, safi
);
4001 rfapiProcessPeerDown(peer
);
4005 void bgp_clear_adj_in(struct peer
*peer
, afi_t afi
, safi_t safi
)
4007 struct bgp_table
*table
;
4008 struct bgp_node
*rn
;
4009 struct bgp_adj_in
*ain
;
4010 struct bgp_adj_in
*ain_next
;
4012 table
= peer
->bgp
->rib
[afi
][safi
];
4014 /* It is possible that we have multiple paths for a prefix from a peer
4015 * if that peer is using AddPath.
4017 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
)) {
4021 ain_next
= ain
->next
;
4023 if (ain
->peer
== peer
) {
4024 bgp_adj_in_remove(rn
, ain
);
4025 bgp_unlock_node(rn
);
4033 void bgp_clear_stale_route(struct peer
*peer
, afi_t afi
, safi_t safi
)
4035 struct bgp_node
*rn
;
4036 struct bgp_info
*ri
;
4037 struct bgp_table
*table
;
4039 if (safi
== SAFI_MPLS_VPN
) {
4040 for (rn
= bgp_table_top(peer
->bgp
->rib
[afi
][safi
]); rn
;
4041 rn
= bgp_route_next(rn
)) {
4042 struct bgp_node
*rm
;
4044 /* look for neighbor in tables */
4045 if ((table
= rn
->info
) == NULL
)
4048 for (rm
= bgp_table_top(table
); rm
;
4049 rm
= bgp_route_next(rm
))
4050 for (ri
= rm
->info
; ri
; ri
= ri
->next
) {
4051 if (ri
->peer
!= peer
)
4053 if (!CHECK_FLAG(ri
->flags
,
4057 bgp_rib_remove(rm
, ri
, peer
, afi
, safi
);
4062 for (rn
= bgp_table_top(peer
->bgp
->rib
[afi
][safi
]); rn
;
4063 rn
= bgp_route_next(rn
))
4064 for (ri
= rn
->info
; ri
; ri
= ri
->next
) {
4065 if (ri
->peer
!= peer
)
4067 if (!CHECK_FLAG(ri
->flags
, BGP_INFO_STALE
))
4069 bgp_rib_remove(rn
, ri
, peer
, afi
, safi
);
4075 static void bgp_cleanup_table(struct bgp
*bgp
, struct bgp_table
*table
,
4078 struct bgp_node
*rn
;
4079 struct bgp_info
*ri
;
4080 struct bgp_info
*next
;
4082 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
))
4083 for (ri
= rn
->info
; ri
; ri
= next
) {
4085 if (CHECK_FLAG(ri
->flags
, BGP_INFO_SELECTED
)
4086 && ri
->type
== ZEBRA_ROUTE_BGP
4087 && (ri
->sub_type
== BGP_ROUTE_NORMAL
4088 || ri
->sub_type
== BGP_ROUTE_AGGREGATE
4089 || ri
->sub_type
== BGP_ROUTE_IMPORTED
)) {
4091 if (bgp_fibupd_safi(safi
))
4092 bgp_zebra_withdraw(&rn
->p
, ri
,
4094 bgp_info_reap(rn
, ri
);
4099 /* Delete all kernel routes. */
4100 void bgp_cleanup_routes(struct bgp
*bgp
)
4103 struct bgp_node
*rn
;
4105 for (afi
= AFI_IP
; afi
< AFI_MAX
; ++afi
) {
4106 if (afi
== AFI_L2VPN
)
4108 bgp_cleanup_table(bgp
, bgp
->rib
[afi
][SAFI_UNICAST
],
4111 * VPN and ENCAP and EVPN tables are two-level (RD is top level)
4113 if (afi
!= AFI_L2VPN
) {
4115 safi
= SAFI_MPLS_VPN
;
4116 for (rn
= bgp_table_top(bgp
->rib
[afi
][safi
]); rn
;
4117 rn
= bgp_route_next(rn
)) {
4119 bgp_cleanup_table(bgp
,
4120 (struct bgp_table
*)(rn
->info
),
4122 bgp_table_finish((struct bgp_table
**)&(
4125 bgp_unlock_node(rn
);
4129 for (rn
= bgp_table_top(bgp
->rib
[afi
][safi
]); rn
;
4130 rn
= bgp_route_next(rn
)) {
4132 bgp_cleanup_table(bgp
,
4133 (struct bgp_table
*)(rn
->info
),
4135 bgp_table_finish((struct bgp_table
**)&(
4138 bgp_unlock_node(rn
);
4143 for (rn
= bgp_table_top(bgp
->rib
[AFI_L2VPN
][SAFI_EVPN
]); rn
;
4144 rn
= bgp_route_next(rn
)) {
4146 bgp_cleanup_table(bgp
,
4147 (struct bgp_table
*)(rn
->info
),
4149 bgp_table_finish((struct bgp_table
**)&(rn
->info
));
4151 bgp_unlock_node(rn
);
4156 void bgp_reset(void)
4159 bgp_zclient_reset();
4160 access_list_reset();
4161 prefix_list_reset();
4164 static int bgp_addpath_encode_rx(struct peer
*peer
, afi_t afi
, safi_t safi
)
4166 return (CHECK_FLAG(peer
->af_cap
[afi
][safi
], PEER_CAP_ADDPATH_AF_RX_ADV
)
4167 && CHECK_FLAG(peer
->af_cap
[afi
][safi
],
4168 PEER_CAP_ADDPATH_AF_TX_RCV
));
4171 /* Parse NLRI stream. Withdraw NLRI is recognized by NULL attr
4173 int bgp_nlri_parse_ip(struct peer
*peer
, struct attr
*attr
,
4174 struct bgp_nlri
*packet
)
4183 int addpath_encoded
;
4184 uint32_t addpath_id
;
4187 lim
= pnt
+ packet
->length
;
4189 safi
= packet
->safi
;
4191 addpath_encoded
= bgp_addpath_encode_rx(peer
, afi
, safi
);
4193 /* RFC4771 6.3 The NLRI field in the UPDATE message is checked for
4194 syntactic validity. If the field is syntactically incorrect,
4195 then the Error Subcode is set to Invalid Network Field. */
4196 for (; pnt
< lim
; pnt
+= psize
) {
4197 /* Clear prefix structure. */
4198 memset(&p
, 0, sizeof(struct prefix
));
4200 if (addpath_encoded
) {
4202 /* When packet overflow occurs return immediately. */
4203 if (pnt
+ BGP_ADDPATH_ID_LEN
> lim
)
4206 addpath_id
= ntohl(*((uint32_t *)pnt
));
4207 pnt
+= BGP_ADDPATH_ID_LEN
;
4210 /* Fetch prefix length. */
4211 p
.prefixlen
= *pnt
++;
4212 /* afi/safi validity already verified by caller,
4213 * bgp_update_receive */
4214 p
.family
= afi2family(afi
);
4216 /* Prefix length check. */
4217 if (p
.prefixlen
> prefix_blen(&p
) * 8) {
4220 "%s [Error] Update packet error (wrong prefix length %d for afi %u)",
4221 peer
->host
, p
.prefixlen
, packet
->afi
);
4225 /* Packet size overflow check. */
4226 psize
= PSIZE(p
.prefixlen
);
4228 /* When packet overflow occur return immediately. */
4229 if (pnt
+ psize
> lim
) {
4232 "%s [Error] Update packet error (prefix length %d overflows packet)",
4233 peer
->host
, p
.prefixlen
);
4237 /* Defensive coding, double-check the psize fits in a struct
4239 if (psize
> (ssize_t
)sizeof(p
.u
)) {
4242 "%s [Error] Update packet error (prefix length %d too large for prefix storage %zu)",
4243 peer
->host
, p
.prefixlen
, sizeof(p
.u
));
4247 /* Fetch prefix from NLRI packet. */
4248 memcpy(p
.u
.val
, pnt
, psize
);
4250 /* Check address. */
4251 if (afi
== AFI_IP
&& safi
== SAFI_UNICAST
) {
4252 if (IN_CLASSD(ntohl(p
.u
.prefix4
.s_addr
))) {
4253 /* From RFC4271 Section 6.3:
4255 * If a prefix in the NLRI field is semantically
4257 * (e.g., an unexpected multicast IP address),
4259 * be logged locally, and the prefix SHOULD be
4264 "%s: IPv4 unicast NLRI is multicast address %s, ignoring",
4265 peer
->host
, inet_ntoa(p
.u
.prefix4
));
4270 /* Check address. */
4271 if (afi
== AFI_IP6
&& safi
== SAFI_UNICAST
) {
4272 if (IN6_IS_ADDR_LINKLOCAL(&p
.u
.prefix6
)) {
4277 "%s: IPv6 unicast NLRI is link-local address %s, ignoring",
4279 inet_ntop(AF_INET6
, &p
.u
.prefix6
, buf
,
4284 if (IN6_IS_ADDR_MULTICAST(&p
.u
.prefix6
)) {
4289 "%s: IPv6 unicast NLRI is multicast address %s, ignoring",
4291 inet_ntop(AF_INET6
, &p
.u
.prefix6
, buf
,
4298 /* Normal process. */
4300 ret
= bgp_update(peer
, &p
, addpath_id
, attr
, afi
, safi
,
4301 ZEBRA_ROUTE_BGP
, BGP_ROUTE_NORMAL
,
4302 NULL
, NULL
, 0, 0, NULL
);
4304 ret
= bgp_withdraw(peer
, &p
, addpath_id
, attr
, afi
,
4305 safi
, ZEBRA_ROUTE_BGP
,
4306 BGP_ROUTE_NORMAL
, NULL
, NULL
, 0,
4309 /* Address family configuration mismatch or maximum-prefix count
4315 /* Packet length consistency check. */
4319 "%s [Error] Update packet error (prefix length mismatch with total length)",
4327 static struct bgp_static
*bgp_static_new(void)
4329 return XCALLOC(MTYPE_BGP_STATIC
, sizeof(struct bgp_static
));
4332 static void bgp_static_free(struct bgp_static
*bgp_static
)
4334 if (bgp_static
->rmap
.name
)
4335 XFREE(MTYPE_ROUTE_MAP_NAME
, bgp_static
->rmap
.name
);
4336 if (bgp_static
->eth_s_id
)
4337 XFREE(MTYPE_ATTR
, bgp_static
->eth_s_id
);
4338 XFREE(MTYPE_BGP_STATIC
, bgp_static
);
4341 void bgp_static_update(struct bgp
*bgp
, struct prefix
*p
,
4342 struct bgp_static
*bgp_static
, afi_t afi
, safi_t safi
)
4344 struct bgp_node
*rn
;
4345 struct bgp_info
*ri
;
4346 struct bgp_info
*new;
4347 struct bgp_info info
;
4349 struct attr
*attr_new
;
4352 int vnc_implicit_withdraw
= 0;
4359 rn
= bgp_afi_node_get(bgp
->rib
[afi
][safi
], afi
, safi
, p
, NULL
);
4361 bgp_attr_default_set(&attr
, BGP_ORIGIN_IGP
);
4363 attr
.nexthop
= bgp_static
->igpnexthop
;
4364 attr
.med
= bgp_static
->igpmetric
;
4365 attr
.flag
|= ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
);
4367 if (bgp_static
->atomic
)
4368 attr
.flag
|= ATTR_FLAG_BIT(BGP_ATTR_ATOMIC_AGGREGATE
);
4370 /* Store label index, if required. */
4371 if (bgp_static
->label_index
!= BGP_INVALID_LABEL_INDEX
) {
4372 attr
.label_index
= bgp_static
->label_index
;
4373 attr
.flag
|= ATTR_FLAG_BIT(BGP_ATTR_PREFIX_SID
);
4376 /* Apply route-map. */
4377 if (bgp_static
->rmap
.name
) {
4378 struct attr attr_tmp
= attr
;
4380 memset(&info
, 0, sizeof(struct bgp_info
));
4381 info
.peer
= bgp
->peer_self
;
4382 info
.attr
= &attr_tmp
;
4384 SET_FLAG(bgp
->peer_self
->rmap_type
, PEER_RMAP_TYPE_NETWORK
);
4386 ret
= route_map_apply(bgp_static
->rmap
.map
, p
, RMAP_BGP
, &info
);
4388 bgp
->peer_self
->rmap_type
= 0;
4390 if (ret
== RMAP_DENYMATCH
) {
4391 /* Free uninterned attribute. */
4392 bgp_attr_flush(&attr_tmp
);
4394 /* Unintern original. */
4395 aspath_unintern(&attr
.aspath
);
4396 bgp_static_withdraw(bgp
, p
, afi
, safi
);
4400 if (bgp_flag_check(bgp
, BGP_FLAG_GRACEFUL_SHUTDOWN
))
4401 bgp_attr_add_gshut_community(&attr_tmp
);
4403 attr_new
= bgp_attr_intern(&attr_tmp
);
4406 if (bgp_flag_check(bgp
, BGP_FLAG_GRACEFUL_SHUTDOWN
))
4407 bgp_attr_add_gshut_community(&attr
);
4409 attr_new
= bgp_attr_intern(&attr
);
4412 for (ri
= rn
->info
; ri
; ri
= ri
->next
)
4413 if (ri
->peer
== bgp
->peer_self
&& ri
->type
== ZEBRA_ROUTE_BGP
4414 && ri
->sub_type
== BGP_ROUTE_STATIC
)
4418 if (attrhash_cmp(ri
->attr
, attr_new
)
4419 && !CHECK_FLAG(ri
->flags
, BGP_INFO_REMOVED
)
4420 && !bgp_flag_check(bgp
, BGP_FLAG_FORCE_STATIC_PROCESS
)) {
4421 bgp_unlock_node(rn
);
4422 bgp_attr_unintern(&attr_new
);
4423 aspath_unintern(&attr
.aspath
);
4426 /* The attribute is changed. */
4427 bgp_info_set_flag(rn
, ri
, BGP_INFO_ATTR_CHANGED
);
4429 /* Rewrite BGP route information. */
4430 if (CHECK_FLAG(ri
->flags
, BGP_INFO_REMOVED
))
4431 bgp_info_restore(rn
, ri
);
4433 bgp_aggregate_decrement(bgp
, p
, ri
, afi
, safi
);
4435 if ((afi
== AFI_IP
|| afi
== AFI_IP6
)
4436 && (safi
== SAFI_UNICAST
)) {
4437 if (CHECK_FLAG(ri
->flags
, BGP_INFO_SELECTED
)) {
4439 * Implicit withdraw case.
4440 * We have to do this before ri is
4443 ++vnc_implicit_withdraw
;
4444 vnc_import_bgp_del_route(bgp
, p
, ri
);
4445 vnc_import_bgp_exterior_del_route(
4450 bgp_attr_unintern(&ri
->attr
);
4451 ri
->attr
= attr_new
;
4452 ri
->uptime
= bgp_clock();
4454 if ((afi
== AFI_IP
|| afi
== AFI_IP6
)
4455 && (safi
== SAFI_UNICAST
)) {
4456 if (vnc_implicit_withdraw
) {
4457 vnc_import_bgp_add_route(bgp
, p
, ri
);
4458 vnc_import_bgp_exterior_add_route(
4464 /* Nexthop reachability check. */
4465 if (bgp_flag_check(bgp
, BGP_FLAG_IMPORT_CHECK
)
4466 && (safi
== SAFI_UNICAST
4467 || safi
== SAFI_LABELED_UNICAST
)) {
4469 struct bgp
*bgp_nexthop
= bgp
;
4471 if (ri
->extra
&& ri
->extra
->bgp_orig
)
4472 bgp_nexthop
= ri
->extra
->bgp_orig
;
4474 if (bgp_find_or_add_nexthop(bgp
, bgp_nexthop
,
4476 bgp_info_set_flag(rn
, ri
,
4479 if (BGP_DEBUG(nht
, NHT
)) {
4480 char buf1
[INET6_ADDRSTRLEN
];
4481 inet_ntop(p
->family
,
4485 "%s(%s): Route not in table, not advertising",
4486 __FUNCTION__
, buf1
);
4488 bgp_info_unset_flag(rn
, ri
,
4492 /* Delete the NHT structure if any, if we're
4494 * enabling/disabling import check. We
4495 * deregister the route
4496 * from NHT to avoid overloading NHT and the
4497 * process interaction
4499 bgp_unlink_nexthop(ri
);
4500 bgp_info_set_flag(rn
, ri
, BGP_INFO_VALID
);
4502 /* Process change. */
4503 bgp_aggregate_increment(bgp
, p
, ri
, afi
, safi
);
4504 bgp_process(bgp
, rn
, afi
, safi
);
4506 if (SAFI_UNICAST
== safi
4507 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
4509 == BGP_INSTANCE_TYPE_DEFAULT
)) {
4510 vpn_leak_from_vrf_update(bgp_get_default(), bgp
,
4514 bgp_unlock_node(rn
);
4515 aspath_unintern(&attr
.aspath
);
4520 /* Make new BGP info. */
4521 new = info_make(ZEBRA_ROUTE_BGP
, BGP_ROUTE_STATIC
, 0, bgp
->peer_self
,
4523 /* Nexthop reachability check. */
4524 if (bgp_flag_check(bgp
, BGP_FLAG_IMPORT_CHECK
)
4525 && (safi
== SAFI_UNICAST
|| safi
== SAFI_LABELED_UNICAST
)) {
4526 if (bgp_find_or_add_nexthop(bgp
, bgp
, afi
, new, NULL
, 0))
4527 bgp_info_set_flag(rn
, new, BGP_INFO_VALID
);
4529 if (BGP_DEBUG(nht
, NHT
)) {
4530 char buf1
[INET6_ADDRSTRLEN
];
4531 inet_ntop(p
->family
, &p
->u
.prefix
, buf1
,
4534 "%s(%s): Route not in table, not advertising",
4535 __FUNCTION__
, buf1
);
4537 bgp_info_unset_flag(rn
, new, BGP_INFO_VALID
);
4540 /* Delete the NHT structure if any, if we're toggling between
4541 * enabling/disabling import check. We deregister the route
4542 * from NHT to avoid overloading NHT and the process interaction
4544 bgp_unlink_nexthop(new);
4546 bgp_info_set_flag(rn
, new, BGP_INFO_VALID
);
4549 /* Aggregate address increment. */
4550 bgp_aggregate_increment(bgp
, p
, new, afi
, safi
);
4552 /* Register new BGP information. */
4553 bgp_info_add(rn
, new);
4555 /* route_node_get lock */
4556 bgp_unlock_node(rn
);
4558 /* Process change. */
4559 bgp_process(bgp
, rn
, afi
, safi
);
4561 if (SAFI_UNICAST
== safi
4562 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
4563 || bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
4564 vpn_leak_from_vrf_update(bgp_get_default(), bgp
, new);
4567 /* Unintern original. */
4568 aspath_unintern(&attr
.aspath
);
4571 void bgp_static_withdraw(struct bgp
*bgp
, struct prefix
*p
, afi_t afi
,
4574 struct bgp_node
*rn
;
4575 struct bgp_info
*ri
;
4577 rn
= bgp_afi_node_get(bgp
->rib
[afi
][safi
], afi
, safi
, p
, NULL
);
4579 /* Check selected route and self inserted route. */
4580 for (ri
= rn
->info
; ri
; ri
= ri
->next
)
4581 if (ri
->peer
== bgp
->peer_self
&& ri
->type
== ZEBRA_ROUTE_BGP
4582 && ri
->sub_type
== BGP_ROUTE_STATIC
)
4585 /* Withdraw static BGP route from routing table. */
4587 if (SAFI_UNICAST
== safi
4588 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
4589 || bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
4590 vpn_leak_from_vrf_withdraw(bgp_get_default(), bgp
, ri
);
4592 bgp_aggregate_decrement(bgp
, p
, ri
, afi
, safi
);
4593 bgp_unlink_nexthop(ri
);
4594 bgp_info_delete(rn
, ri
);
4595 bgp_process(bgp
, rn
, afi
, safi
);
4598 /* Unlock bgp_node_lookup. */
4599 bgp_unlock_node(rn
);
4603 * Used for SAFI_MPLS_VPN and SAFI_ENCAP
4605 static void bgp_static_withdraw_safi(struct bgp
*bgp
, struct prefix
*p
,
4606 afi_t afi
, safi_t safi
,
4607 struct prefix_rd
*prd
)
4609 struct bgp_node
*rn
;
4610 struct bgp_info
*ri
;
4612 rn
= bgp_afi_node_get(bgp
->rib
[afi
][safi
], afi
, safi
, p
, prd
);
4614 /* Check selected route and self inserted route. */
4615 for (ri
= rn
->info
; ri
; ri
= ri
->next
)
4616 if (ri
->peer
== bgp
->peer_self
&& ri
->type
== ZEBRA_ROUTE_BGP
4617 && ri
->sub_type
== BGP_ROUTE_STATIC
)
4620 /* Withdraw static BGP route from routing table. */
4623 rfapiProcessWithdraw(
4624 ri
->peer
, NULL
, p
, prd
, ri
->attr
, afi
, safi
, ri
->type
,
4625 1); /* Kill, since it is an administrative change */
4627 if (SAFI_MPLS_VPN
== safi
4628 && bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
) {
4629 vpn_leak_to_vrf_withdraw(bgp
, ri
);
4631 bgp_aggregate_decrement(bgp
, p
, ri
, afi
, safi
);
4632 bgp_info_delete(rn
, ri
);
4633 bgp_process(bgp
, rn
, afi
, safi
);
4636 /* Unlock bgp_node_lookup. */
4637 bgp_unlock_node(rn
);
4640 static void bgp_static_update_safi(struct bgp
*bgp
, struct prefix
*p
,
4641 struct bgp_static
*bgp_static
, afi_t afi
,
4644 struct bgp_node
*rn
;
4645 struct bgp_info
*new;
4646 struct attr
*attr_new
;
4647 struct attr attr
= {0};
4648 struct bgp_info
*ri
;
4650 mpls_label_t label
= 0;
4652 uint32_t num_labels
= 0;
4657 if (bgp_static
->label
!= MPLS_INVALID_LABEL
)
4659 rn
= bgp_afi_node_get(bgp
->rib
[afi
][safi
], afi
, safi
, p
,
4662 bgp_attr_default_set(&attr
, BGP_ORIGIN_IGP
);
4664 attr
.nexthop
= bgp_static
->igpnexthop
;
4665 attr
.med
= bgp_static
->igpmetric
;
4666 attr
.flag
|= ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
);
4668 if ((safi
== SAFI_EVPN
) || (safi
== SAFI_MPLS_VPN
)
4669 || (safi
== SAFI_ENCAP
)) {
4670 if (afi
== AFI_IP
) {
4671 attr
.mp_nexthop_global_in
= bgp_static
->igpnexthop
;
4672 attr
.mp_nexthop_len
= IPV4_MAX_BYTELEN
;
4675 if (afi
== AFI_L2VPN
) {
4676 if (bgp_static
->gatewayIp
.family
== AF_INET
)
4678 bgp_static
->gatewayIp
.u
.prefix4
.s_addr
;
4679 else if (bgp_static
->gatewayIp
.family
== AF_INET6
)
4680 memcpy(&(add
.ipv6
), &(bgp_static
->gatewayIp
.u
.prefix6
),
4681 sizeof(struct in6_addr
));
4682 overlay_index_update(&attr
, bgp_static
->eth_s_id
, &add
);
4683 if (bgp_static
->encap_tunneltype
== BGP_ENCAP_TYPE_VXLAN
) {
4684 struct bgp_encap_type_vxlan bet
;
4685 memset(&bet
, 0, sizeof(struct bgp_encap_type_vxlan
));
4686 bet
.vnid
= p
->u
.prefix_evpn
.prefix_addr
.eth_tag
;
4687 bgp_encap_type_vxlan_to_tlv(&bet
, &attr
);
4689 if (bgp_static
->router_mac
) {
4690 bgp_add_routermac_ecom(&attr
, bgp_static
->router_mac
);
4693 /* Apply route-map. */
4694 if (bgp_static
->rmap
.name
) {
4695 struct attr attr_tmp
= attr
;
4696 struct bgp_info info
;
4699 info
.peer
= bgp
->peer_self
;
4700 info
.attr
= &attr_tmp
;
4702 SET_FLAG(bgp
->peer_self
->rmap_type
, PEER_RMAP_TYPE_NETWORK
);
4704 ret
= route_map_apply(bgp_static
->rmap
.map
, p
, RMAP_BGP
, &info
);
4706 bgp
->peer_self
->rmap_type
= 0;
4708 if (ret
== RMAP_DENYMATCH
) {
4709 /* Free uninterned attribute. */
4710 bgp_attr_flush(&attr_tmp
);
4712 /* Unintern original. */
4713 aspath_unintern(&attr
.aspath
);
4714 bgp_static_withdraw_safi(bgp
, p
, afi
, safi
,
4719 attr_new
= bgp_attr_intern(&attr_tmp
);
4721 attr_new
= bgp_attr_intern(&attr
);
4724 for (ri
= rn
->info
; ri
; ri
= ri
->next
)
4725 if (ri
->peer
== bgp
->peer_self
&& ri
->type
== ZEBRA_ROUTE_BGP
4726 && ri
->sub_type
== BGP_ROUTE_STATIC
)
4730 memset(&add
, 0, sizeof(union gw_addr
));
4731 if (attrhash_cmp(ri
->attr
, attr_new
)
4732 && overlay_index_equal(afi
, ri
, bgp_static
->eth_s_id
, &add
)
4733 && !CHECK_FLAG(ri
->flags
, BGP_INFO_REMOVED
)) {
4734 bgp_unlock_node(rn
);
4735 bgp_attr_unintern(&attr_new
);
4736 aspath_unintern(&attr
.aspath
);
4739 /* The attribute is changed. */
4740 bgp_info_set_flag(rn
, ri
, BGP_INFO_ATTR_CHANGED
);
4742 /* Rewrite BGP route information. */
4743 if (CHECK_FLAG(ri
->flags
, BGP_INFO_REMOVED
))
4744 bgp_info_restore(rn
, ri
);
4746 bgp_aggregate_decrement(bgp
, p
, ri
, afi
, safi
);
4747 bgp_attr_unintern(&ri
->attr
);
4748 ri
->attr
= attr_new
;
4749 ri
->uptime
= bgp_clock();
4752 label
= decode_label(&ri
->extra
->label
[0]);
4755 /* Process change. */
4756 bgp_aggregate_increment(bgp
, p
, ri
, afi
, safi
);
4757 bgp_process(bgp
, rn
, afi
, safi
);
4759 if (SAFI_MPLS_VPN
== safi
4760 && bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
) {
4761 vpn_leak_to_vrf_update(bgp
, ri
);
4764 rfapiProcessUpdate(ri
->peer
, NULL
, p
, &bgp_static
->prd
,
4765 ri
->attr
, afi
, safi
, ri
->type
,
4766 ri
->sub_type
, &label
);
4768 bgp_unlock_node(rn
);
4769 aspath_unintern(&attr
.aspath
);
4775 /* Make new BGP info. */
4776 new = info_make(ZEBRA_ROUTE_BGP
, BGP_ROUTE_STATIC
, 0, bgp
->peer_self
,
4778 SET_FLAG(new->flags
, BGP_INFO_VALID
);
4779 new->extra
= bgp_info_extra_new();
4781 new->extra
->label
[0] = bgp_static
->label
;
4782 new->extra
->num_labels
= num_labels
;
4785 label
= decode_label(&bgp_static
->label
);
4788 /* Aggregate address increment. */
4789 bgp_aggregate_increment(bgp
, p
, new, afi
, safi
);
4791 /* Register new BGP information. */
4792 bgp_info_add(rn
, new);
4793 /* route_node_get lock */
4794 bgp_unlock_node(rn
);
4796 /* Process change. */
4797 bgp_process(bgp
, rn
, afi
, safi
);
4799 if (SAFI_MPLS_VPN
== safi
4800 && bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
) {
4801 vpn_leak_to_vrf_update(bgp
, new);
4804 rfapiProcessUpdate(new->peer
, NULL
, p
, &bgp_static
->prd
, new->attr
, afi
,
4805 safi
, new->type
, new->sub_type
, &label
);
4808 /* Unintern original. */
4809 aspath_unintern(&attr
.aspath
);
4812 /* Configure static BGP network. When user don't run zebra, static
4813 route should be installed as valid. */
4814 static int bgp_static_set(struct vty
*vty
, const char *negate
,
4815 const char *ip_str
, afi_t afi
, safi_t safi
,
4816 const char *rmap
, int backdoor
, uint32_t label_index
)
4818 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
4821 struct bgp_static
*bgp_static
;
4822 struct bgp_node
*rn
;
4823 uint8_t need_update
= 0;
4825 /* Convert IP prefix string to struct prefix. */
4826 ret
= str2prefix(ip_str
, &p
);
4828 vty_out(vty
, "%% Malformed prefix\n");
4829 return CMD_WARNING_CONFIG_FAILED
;
4831 if (afi
== AFI_IP6
&& IN6_IS_ADDR_LINKLOCAL(&p
.u
.prefix6
)) {
4832 vty_out(vty
, "%% Malformed prefix (link-local address)\n");
4833 return CMD_WARNING_CONFIG_FAILED
;
4840 /* Set BGP static route configuration. */
4841 rn
= bgp_node_lookup(bgp
->route
[afi
][safi
], &p
);
4844 vty_out(vty
, "%% Can't find static route specified\n");
4845 return CMD_WARNING_CONFIG_FAILED
;
4848 bgp_static
= bgp_static_get_node_info(rn
);
4850 if ((label_index
!= BGP_INVALID_LABEL_INDEX
)
4851 && (label_index
!= bgp_static
->label_index
)) {
4853 "%% label-index doesn't match static route\n");
4854 return CMD_WARNING_CONFIG_FAILED
;
4857 if ((rmap
&& bgp_static
->rmap
.name
)
4858 && strcmp(rmap
, bgp_static
->rmap
.name
)) {
4860 "%% route-map name doesn't match static route\n");
4861 return CMD_WARNING_CONFIG_FAILED
;
4864 /* Update BGP RIB. */
4865 if (!bgp_static
->backdoor
)
4866 bgp_static_withdraw(bgp
, &p
, afi
, safi
);
4868 /* Clear configuration. */
4869 bgp_static_free(bgp_static
);
4870 bgp_static_set_node_info(rn
, NULL
);
4871 bgp_unlock_node(rn
);
4872 bgp_unlock_node(rn
);
4875 /* Set BGP static route configuration. */
4876 rn
= bgp_node_get(bgp
->route
[afi
][safi
], &p
);
4878 bgp_static
= bgp_static_get_node_info(rn
);
4880 /* Configuration change. */
4881 /* Label index cannot be changed. */
4882 if (bgp_static
->label_index
!= label_index
) {
4883 vty_out(vty
, "%% cannot change label-index\n");
4884 return CMD_WARNING_CONFIG_FAILED
;
4887 /* Check previous routes are installed into BGP. */
4888 if (bgp_static
->valid
4889 && bgp_static
->backdoor
!= backdoor
)
4892 bgp_static
->backdoor
= backdoor
;
4895 if (bgp_static
->rmap
.name
)
4896 XFREE(MTYPE_ROUTE_MAP_NAME
,
4897 bgp_static
->rmap
.name
);
4898 bgp_static
->rmap
.name
=
4899 XSTRDUP(MTYPE_ROUTE_MAP_NAME
, rmap
);
4900 bgp_static
->rmap
.map
=
4901 route_map_lookup_by_name(rmap
);
4903 if (bgp_static
->rmap
.name
)
4904 XFREE(MTYPE_ROUTE_MAP_NAME
,
4905 bgp_static
->rmap
.name
);
4906 bgp_static
->rmap
.name
= NULL
;
4907 bgp_static
->rmap
.map
= NULL
;
4908 bgp_static
->valid
= 0;
4910 bgp_unlock_node(rn
);
4912 /* New configuration. */
4913 bgp_static
= bgp_static_new();
4914 bgp_static
->backdoor
= backdoor
;
4915 bgp_static
->valid
= 0;
4916 bgp_static
->igpmetric
= 0;
4917 bgp_static
->igpnexthop
.s_addr
= 0;
4918 bgp_static
->label_index
= label_index
;
4921 if (bgp_static
->rmap
.name
)
4922 XFREE(MTYPE_ROUTE_MAP_NAME
,
4923 bgp_static
->rmap
.name
);
4924 bgp_static
->rmap
.name
=
4925 XSTRDUP(MTYPE_ROUTE_MAP_NAME
, rmap
);
4926 bgp_static
->rmap
.map
=
4927 route_map_lookup_by_name(rmap
);
4929 bgp_static_set_node_info(rn
, bgp_static
);
4932 bgp_static
->valid
= 1;
4934 bgp_static_withdraw(bgp
, &p
, afi
, safi
);
4936 if (!bgp_static
->backdoor
)
4937 bgp_static_update(bgp
, &p
, bgp_static
, afi
, safi
);
4943 void bgp_static_add(struct bgp
*bgp
)
4947 struct bgp_node
*rn
;
4948 struct bgp_node
*rm
;
4949 struct bgp_table
*table
;
4950 struct bgp_static
*bgp_static
;
4952 FOREACH_AFI_SAFI (afi
, safi
)
4953 for (rn
= bgp_table_top(bgp
->route
[afi
][safi
]); rn
;
4954 rn
= bgp_route_next(rn
)) {
4955 if (rn
->info
== NULL
)
4958 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_ENCAP
)
4959 || (safi
== SAFI_EVPN
)) {
4962 for (rm
= bgp_table_top(table
); rm
;
4963 rm
= bgp_route_next(rm
)) {
4965 bgp_static_get_node_info(rm
);
4966 bgp_static_update_safi(bgp
, &rm
->p
,
4971 bgp_static_update(bgp
, &rn
->p
,
4972 bgp_static_get_node_info(rn
),
4978 /* Called from bgp_delete(). Delete all static routes from the BGP
4980 void bgp_static_delete(struct bgp
*bgp
)
4984 struct bgp_node
*rn
;
4985 struct bgp_node
*rm
;
4986 struct bgp_table
*table
;
4987 struct bgp_static
*bgp_static
;
4989 FOREACH_AFI_SAFI (afi
, safi
)
4990 for (rn
= bgp_table_top(bgp
->route
[afi
][safi
]); rn
;
4991 rn
= bgp_route_next(rn
)) {
4992 if (rn
->info
== NULL
)
4995 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_ENCAP
)
4996 || (safi
== SAFI_EVPN
)) {
4999 for (rm
= bgp_table_top(table
); rm
;
5000 rm
= bgp_route_next(rm
)) {
5002 bgp_static_get_node_info(rm
);
5003 bgp_static_withdraw_safi(
5004 bgp
, &rm
->p
, AFI_IP
, safi
,
5005 (struct prefix_rd
*)&rn
->p
);
5006 bgp_static_free(bgp_static
);
5007 bgp_static_set_node_info(rn
, NULL
);
5008 bgp_unlock_node(rn
);
5011 bgp_static
= bgp_static_get_node_info(rn
);
5012 bgp_static_withdraw(bgp
, &rn
->p
, afi
, safi
);
5013 bgp_static_free(bgp_static
);
5014 bgp_static_set_node_info(rn
, NULL
);
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
)) {
5044 bgp_static_get_node_info(rm
);
5045 bgp_static_update_safi(bgp
, &rm
->p
,
5050 bgp_static
= bgp_static_get_node_info(rn
);
5051 bgp_static_update(bgp
, &rn
->p
, bgp_static
, afi
,
5056 bgp_flag_unset(bgp
, BGP_FLAG_FORCE_STATIC_PROCESS
);
5059 static void bgp_purge_af_static_redist_routes(struct bgp
*bgp
, afi_t afi
,
5062 struct bgp_table
*table
;
5063 struct bgp_node
*rn
;
5064 struct bgp_info
*ri
;
5066 table
= bgp
->rib
[afi
][safi
];
5067 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
)) {
5068 for (ri
= rn
->info
; ri
; ri
= ri
->next
) {
5069 if (ri
->peer
== bgp
->peer_self
5070 && ((ri
->type
== ZEBRA_ROUTE_BGP
5071 && ri
->sub_type
== BGP_ROUTE_STATIC
)
5072 || (ri
->type
!= ZEBRA_ROUTE_BGP
5074 == BGP_ROUTE_REDISTRIBUTE
))) {
5075 bgp_aggregate_decrement(bgp
, &rn
->p
, ri
, afi
,
5077 bgp_unlink_nexthop(ri
);
5078 bgp_info_delete(rn
, ri
);
5079 bgp_process(bgp
, rn
, afi
, safi
);
5086 * Purge all networks and redistributed routes from routing table.
5087 * Invoked upon the instance going down.
5089 void bgp_purge_static_redist_routes(struct bgp
*bgp
)
5094 FOREACH_AFI_SAFI (afi
, safi
)
5095 bgp_purge_af_static_redist_routes(bgp
, afi
, safi
);
5100 * Currently this is used to set static routes for VPN and ENCAP.
5101 * I think it can probably be factored with bgp_static_set.
5103 int bgp_static_set_safi(afi_t afi
, safi_t safi
, struct vty
*vty
,
5104 const char *ip_str
, const char *rd_str
,
5105 const char *label_str
, const char *rmap_str
,
5106 int evpn_type
, const char *esi
, const char *gwip
,
5107 const char *ethtag
, const char *routermac
)
5109 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
5112 struct prefix_rd prd
;
5113 struct bgp_node
*prn
;
5114 struct bgp_node
*rn
;
5115 struct bgp_table
*table
;
5116 struct bgp_static
*bgp_static
;
5117 mpls_label_t label
= MPLS_INVALID_LABEL
;
5118 struct prefix gw_ip
;
5120 /* validate ip prefix */
5121 ret
= str2prefix(ip_str
, &p
);
5123 vty_out(vty
, "%% Malformed prefix\n");
5124 return CMD_WARNING_CONFIG_FAILED
;
5127 if ((afi
== AFI_L2VPN
)
5128 && (bgp_build_evpn_prefix(evpn_type
,
5129 ethtag
!= NULL
? atol(ethtag
) : 0, &p
))) {
5130 vty_out(vty
, "%% L2VPN prefix could not be forged\n");
5131 return CMD_WARNING_CONFIG_FAILED
;
5134 ret
= str2prefix_rd(rd_str
, &prd
);
5136 vty_out(vty
, "%% Malformed rd\n");
5137 return CMD_WARNING_CONFIG_FAILED
;
5141 unsigned long label_val
;
5142 label_val
= strtoul(label_str
, NULL
, 10);
5143 encode_label(label_val
, &label
);
5146 if (safi
== SAFI_EVPN
) {
5147 if (esi
&& str2esi(esi
, NULL
) == 0) {
5148 vty_out(vty
, "%% Malformed ESI\n");
5149 return CMD_WARNING_CONFIG_FAILED
;
5151 if (routermac
&& prefix_str2mac(routermac
, NULL
) == 0) {
5152 vty_out(vty
, "%% Malformed Router MAC\n");
5153 return CMD_WARNING_CONFIG_FAILED
;
5156 memset(&gw_ip
, 0, sizeof(struct prefix
));
5157 ret
= str2prefix(gwip
, &gw_ip
);
5159 vty_out(vty
, "%% Malformed GatewayIp\n");
5160 return CMD_WARNING_CONFIG_FAILED
;
5162 if ((gw_ip
.family
== AF_INET
5163 && is_evpn_prefix_ipaddr_v6(
5164 (struct prefix_evpn
*)&p
))
5165 || (gw_ip
.family
== AF_INET6
5166 && is_evpn_prefix_ipaddr_v4(
5167 (struct prefix_evpn
*)&p
))) {
5169 "%% GatewayIp family differs with IP prefix\n");
5170 return CMD_WARNING_CONFIG_FAILED
;
5174 prn
= bgp_node_get(bgp
->route
[afi
][safi
], (struct prefix
*)&prd
);
5175 if (prn
->info
== NULL
)
5176 prn
->info
= bgp_table_init(bgp
, afi
, safi
);
5178 bgp_unlock_node(prn
);
5181 rn
= bgp_node_get(table
, &p
);
5184 vty_out(vty
, "%% Same network configuration exists\n");
5185 bgp_unlock_node(rn
);
5187 /* New configuration. */
5188 bgp_static
= bgp_static_new();
5189 bgp_static
->backdoor
= 0;
5190 bgp_static
->valid
= 0;
5191 bgp_static
->igpmetric
= 0;
5192 bgp_static
->igpnexthop
.s_addr
= 0;
5193 bgp_static
->label
= label
;
5194 bgp_static
->prd
= prd
;
5197 if (bgp_static
->rmap
.name
)
5198 XFREE(MTYPE_ROUTE_MAP_NAME
,
5199 bgp_static
->rmap
.name
);
5200 bgp_static
->rmap
.name
=
5201 XSTRDUP(MTYPE_ROUTE_MAP_NAME
, rmap_str
);
5202 bgp_static
->rmap
.map
=
5203 route_map_lookup_by_name(rmap_str
);
5206 if (safi
== SAFI_EVPN
) {
5208 bgp_static
->eth_s_id
=
5210 sizeof(struct eth_segment_id
));
5211 str2esi(esi
, bgp_static
->eth_s_id
);
5214 bgp_static
->router_mac
=
5215 XCALLOC(MTYPE_ATTR
, ETH_ALEN
+ 1);
5216 (void)prefix_str2mac(routermac
,
5217 bgp_static
->router_mac
);
5220 prefix_copy(&bgp_static
->gatewayIp
, &gw_ip
);
5222 bgp_static_set_node_info(rn
, bgp_static
);
5224 bgp_static
->valid
= 1;
5225 bgp_static_update_safi(bgp
, &p
, bgp_static
, afi
, safi
);
5231 /* Configure static BGP network. */
5232 int bgp_static_unset_safi(afi_t afi
, safi_t safi
, struct vty
*vty
,
5233 const char *ip_str
, const char *rd_str
,
5234 const char *label_str
, int evpn_type
, const char *esi
,
5235 const char *gwip
, const char *ethtag
)
5237 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
5240 struct prefix_rd prd
;
5241 struct bgp_node
*prn
;
5242 struct bgp_node
*rn
;
5243 struct bgp_table
*table
;
5244 struct bgp_static
*bgp_static
;
5245 mpls_label_t label
= MPLS_INVALID_LABEL
;
5247 /* Convert IP prefix string to struct prefix. */
5248 ret
= str2prefix(ip_str
, &p
);
5250 vty_out(vty
, "%% Malformed prefix\n");
5251 return CMD_WARNING_CONFIG_FAILED
;
5254 if ((afi
== AFI_L2VPN
)
5255 && (bgp_build_evpn_prefix(evpn_type
,
5256 ethtag
!= NULL
? atol(ethtag
) : 0, &p
))) {
5257 vty_out(vty
, "%% L2VPN prefix could not be forged\n");
5258 return CMD_WARNING_CONFIG_FAILED
;
5260 ret
= str2prefix_rd(rd_str
, &prd
);
5262 vty_out(vty
, "%% Malformed rd\n");
5263 return CMD_WARNING_CONFIG_FAILED
;
5267 unsigned long label_val
;
5268 label_val
= strtoul(label_str
, NULL
, 10);
5269 encode_label(label_val
, &label
);
5272 prn
= bgp_node_get(bgp
->route
[afi
][safi
], (struct prefix
*)&prd
);
5273 if (prn
->info
== NULL
)
5274 prn
->info
= bgp_table_init(bgp
, afi
, safi
);
5276 bgp_unlock_node(prn
);
5279 rn
= bgp_node_lookup(table
, &p
);
5282 bgp_static_withdraw_safi(bgp
, &p
, afi
, safi
, &prd
);
5284 bgp_static
= bgp_static_get_node_info(rn
);
5285 bgp_static_free(bgp_static
);
5286 bgp_static_set_node_info(rn
, NULL
);
5287 bgp_unlock_node(rn
);
5288 bgp_unlock_node(rn
);
5290 vty_out(vty
, "%% Can't find the route\n");
5295 static int bgp_table_map_set(struct vty
*vty
, afi_t afi
, safi_t safi
,
5296 const char *rmap_name
)
5298 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
5299 struct bgp_rmap
*rmap
;
5301 rmap
= &bgp
->table_map
[afi
][safi
];
5304 XFREE(MTYPE_ROUTE_MAP_NAME
, rmap
->name
);
5305 rmap
->name
= XSTRDUP(MTYPE_ROUTE_MAP_NAME
, rmap_name
);
5306 rmap
->map
= route_map_lookup_by_name(rmap_name
);
5309 XFREE(MTYPE_ROUTE_MAP_NAME
, rmap
->name
);
5314 if (bgp_fibupd_safi(safi
))
5315 bgp_zebra_announce_table(bgp
, afi
, safi
);
5320 static int bgp_table_map_unset(struct vty
*vty
, afi_t afi
, safi_t safi
,
5321 const char *rmap_name
)
5323 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
5324 struct bgp_rmap
*rmap
;
5326 rmap
= &bgp
->table_map
[afi
][safi
];
5328 XFREE(MTYPE_ROUTE_MAP_NAME
, rmap
->name
);
5332 if (bgp_fibupd_safi(safi
))
5333 bgp_zebra_announce_table(bgp
, afi
, safi
);
5338 void bgp_config_write_table_map(struct vty
*vty
, struct bgp
*bgp
, afi_t afi
,
5341 if (bgp
->table_map
[afi
][safi
].name
) {
5342 vty_out(vty
, " table-map %s\n",
5343 bgp
->table_map
[afi
][safi
].name
);
5347 DEFUN (bgp_table_map
,
5350 "BGP table to RIB route download filter\n"
5351 "Name of the route map\n")
5354 return bgp_table_map_set(vty
, bgp_node_afi(vty
), bgp_node_safi(vty
),
5355 argv
[idx_word
]->arg
);
5357 DEFUN (no_bgp_table_map
,
5358 no_bgp_table_map_cmd
,
5359 "no table-map WORD",
5361 "BGP table to RIB route download filter\n"
5362 "Name of the route map\n")
5365 return bgp_table_map_unset(vty
, bgp_node_afi(vty
), bgp_node_safi(vty
),
5366 argv
[idx_word
]->arg
);
5372 <A.B.C.D/M$prefix|A.B.C.D$address [mask A.B.C.D$netmask]> \
5373 [{route-map WORD$map_name|label-index (0-1048560)$label_index| \
5374 backdoor$backdoor}]",
5376 "Specify a network to announce via BGP\n"
5381 "Route-map to modify the attributes\n"
5382 "Name of the route map\n"
5383 "Label index to associate with the prefix\n"
5384 "Label index value\n"
5385 "Specify a BGP backdoor route\n")
5387 char addr_prefix_str
[BUFSIZ
];
5392 ret
= netmask_str2prefix_str(address_str
, netmask_str
,
5395 vty_out(vty
, "%% Inconsistent address and mask\n");
5396 return CMD_WARNING_CONFIG_FAILED
;
5400 return bgp_static_set(
5401 vty
, no
, address_str
? addr_prefix_str
: prefix_str
, AFI_IP
,
5402 bgp_node_safi(vty
), map_name
, backdoor
? 1 : 0,
5403 label_index
? (uint32_t)label_index
: BGP_INVALID_LABEL_INDEX
);
5406 DEFPY(ipv6_bgp_network
,
5407 ipv6_bgp_network_cmd
,
5408 "[no] network X:X::X:X/M$prefix \
5409 [{route-map WORD$map_name|label-index (0-1048560)$label_index}]",
5411 "Specify a network to announce via BGP\n"
5413 "Route-map to modify the attributes\n"
5414 "Name of the route map\n"
5415 "Label index to associate with the prefix\n"
5416 "Label index value\n")
5418 return bgp_static_set(
5419 vty
, no
, prefix_str
, AFI_IP6
, bgp_node_safi(vty
), map_name
, 0,
5420 label_index
? (uint32_t)label_index
: BGP_INVALID_LABEL_INDEX
);
5423 /* Aggreagete address:
5425 advertise-map Set condition to advertise attribute
5426 as-set Generate AS set path information
5427 attribute-map Set attributes of aggregate
5428 route-map Set parameters of aggregate
5429 summary-only Filter more specific routes from updates
5430 suppress-map Conditionally filter more specific routes from updates
5433 struct bgp_aggregate
{
5434 /* Summary-only flag. */
5435 uint8_t summary_only
;
5437 /* AS set generation. */
5440 /* Route-map for aggregated route. */
5441 struct route_map
*map
;
5443 /* Suppress-count. */
5444 unsigned long count
;
5446 /* SAFI configuration. */
5450 static struct bgp_aggregate
*bgp_aggregate_new(void)
5452 return XCALLOC(MTYPE_BGP_AGGREGATE
, sizeof(struct bgp_aggregate
));
5455 static void bgp_aggregate_free(struct bgp_aggregate
*aggregate
)
5457 XFREE(MTYPE_BGP_AGGREGATE
, aggregate
);
5460 static int bgp_aggregate_info_same(struct bgp_info
*ri
, uint8_t origin
,
5461 struct aspath
*aspath
,
5462 struct community
*comm
)
5464 static struct aspath
*ae
= NULL
;
5467 ae
= aspath_empty();
5472 if (origin
!= ri
->attr
->origin
)
5475 if (!aspath_cmp(ri
->attr
->aspath
, (aspath
) ? aspath
: ae
))
5478 if (!community_cmp(ri
->attr
->community
, comm
))
5484 static void bgp_aggregate_install(struct bgp
*bgp
, afi_t afi
, safi_t safi
,
5485 struct prefix
*p
, uint8_t origin
,
5486 struct aspath
*aspath
,
5487 struct community
*community
,
5488 uint8_t atomic_aggregate
,
5489 struct bgp_aggregate
*aggregate
)
5491 struct bgp_node
*rn
;
5492 struct bgp_table
*table
;
5493 struct bgp_info
*ri
, *new;
5495 table
= bgp
->rib
[afi
][safi
];
5497 rn
= bgp_node_get(table
, p
);
5499 for (ri
= rn
->info
; ri
; ri
= ri
->next
)
5500 if (ri
->peer
== bgp
->peer_self
&& ri
->type
== ZEBRA_ROUTE_BGP
5501 && ri
->sub_type
== BGP_ROUTE_AGGREGATE
)
5504 if (aggregate
->count
> 0) {
5506 * If the aggregate information has not changed
5507 * no need to re-install it again.
5509 if (bgp_aggregate_info_same(rn
->info
, origin
, aspath
,
5511 bgp_unlock_node(rn
);
5514 aspath_free(aspath
);
5516 community_free(community
);
5522 * Mark the old as unusable
5525 bgp_info_delete(rn
, ri
);
5528 ZEBRA_ROUTE_BGP
, BGP_ROUTE_AGGREGATE
, 0, bgp
->peer_self
,
5529 bgp_attr_aggregate_intern(bgp
, origin
, aspath
,
5530 community
, aggregate
->as_set
,
5533 SET_FLAG(new->flags
, BGP_INFO_VALID
);
5535 bgp_info_add(rn
, new);
5536 bgp_process(bgp
, rn
, afi
, safi
);
5538 for (ri
= rn
->info
; ri
; ri
= ri
->next
)
5539 if (ri
->peer
== bgp
->peer_self
5540 && ri
->type
== ZEBRA_ROUTE_BGP
5541 && ri
->sub_type
== BGP_ROUTE_AGGREGATE
)
5544 /* Withdraw static BGP route from routing table. */
5546 bgp_info_delete(rn
, ri
);
5547 bgp_process(bgp
, rn
, afi
, safi
);
5551 bgp_unlock_node(rn
);
5554 /* Update an aggregate as routes are added/removed from the BGP table */
5555 static void bgp_aggregate_route(struct bgp
*bgp
, struct prefix
*p
,
5556 struct bgp_info
*rinew
, afi_t afi
, safi_t safi
,
5557 struct bgp_info
*del
,
5558 struct bgp_aggregate
*aggregate
)
5560 struct bgp_table
*table
;
5561 struct bgp_node
*top
;
5562 struct bgp_node
*rn
;
5564 struct aspath
*aspath
= NULL
;
5565 struct aspath
*asmerge
= NULL
;
5566 struct community
*community
= NULL
;
5567 struct community
*commerge
= NULL
;
5568 struct bgp_info
*ri
;
5569 unsigned long match
= 0;
5570 uint8_t atomic_aggregate
= 0;
5572 /* ORIGIN attribute: If at least one route among routes that are
5573 aggregated has ORIGIN with the value INCOMPLETE, then the
5574 aggregated route must have the ORIGIN attribute with the value
5575 INCOMPLETE. Otherwise, if at least one route among routes that
5576 are aggregated has ORIGIN with the value EGP, then the aggregated
5577 route must have the origin attribute with the value EGP. In all
5578 other case the value of the ORIGIN attribute of the aggregated
5579 route is INTERNAL. */
5580 origin
= BGP_ORIGIN_IGP
;
5582 table
= bgp
->rib
[afi
][safi
];
5584 top
= bgp_node_get(table
, p
);
5585 for (rn
= bgp_node_get(table
, p
); rn
;
5586 rn
= bgp_route_next_until(rn
, top
)) {
5587 if (rn
->p
.prefixlen
<= p
->prefixlen
)
5592 for (ri
= rn
->info
; ri
; ri
= ri
->next
) {
5593 if (BGP_INFO_HOLDDOWN(ri
))
5596 if (del
&& ri
== del
)
5600 & ATTR_FLAG_BIT(BGP_ATTR_ATOMIC_AGGREGATE
))
5601 atomic_aggregate
= 1;
5603 if (ri
->sub_type
== BGP_ROUTE_AGGREGATE
)
5607 * summary-only aggregate route suppress
5608 * aggregated route announcements.
5610 if (aggregate
->summary_only
) {
5611 (bgp_info_extra_get(ri
))->suppress
++;
5612 bgp_info_set_flag(rn
, ri
,
5613 BGP_INFO_ATTR_CHANGED
);
5620 * If at least one route among routes that are
5621 * aggregated has ORIGIN with the value INCOMPLETE,
5622 * then the aggregated route MUST have the ORIGIN
5623 * attribute with the value INCOMPLETE. Otherwise, if
5624 * at least one route among routes that are aggregated
5625 * has ORIGIN with the value EGP, then the aggregated
5626 * route MUST have the ORIGIN attribute with the value
5629 if (origin
< ri
->attr
->origin
)
5630 origin
= ri
->attr
->origin
;
5632 if (!aggregate
->as_set
)
5636 * as-set aggregate route generate origin, as path,
5637 * and community aggregation.
5640 asmerge
= aspath_aggregate(aspath
,
5642 aspath_free(aspath
);
5645 aspath
= aspath_dup(ri
->attr
->aspath
);
5647 if (!ri
->attr
->community
)
5651 commerge
= community_merge(community
,
5652 ri
->attr
->community
);
5653 community
= community_uniq_sort(commerge
);
5654 community_free(commerge
);
5656 community
= community_dup(ri
->attr
->community
);
5659 bgp_process(bgp
, rn
, afi
, safi
);
5661 bgp_unlock_node(top
);
5666 if (aggregate
->summary_only
)
5667 (bgp_info_extra_get(rinew
))->suppress
++;
5669 if (origin
< rinew
->attr
->origin
)
5670 origin
= rinew
->attr
->origin
;
5672 if (aggregate
->as_set
) {
5674 asmerge
= aspath_aggregate(aspath
,
5675 rinew
->attr
->aspath
);
5676 aspath_free(aspath
);
5679 aspath
= aspath_dup(rinew
->attr
->aspath
);
5681 if (rinew
->attr
->community
) {
5683 commerge
= community_merge(
5685 rinew
->attr
->community
);
5687 community_uniq_sort(commerge
);
5688 community_free(commerge
);
5690 community
= community_dup(
5691 rinew
->attr
->community
);
5696 bgp_aggregate_install(bgp
, afi
, safi
, p
, origin
, aspath
, community
,
5697 atomic_aggregate
, aggregate
);
5699 if (aggregate
->count
== 0) {
5701 aspath_free(aspath
);
5703 community_free(community
);
5707 static void bgp_aggregate_delete(struct bgp
*bgp
, struct prefix
*p
, afi_t afi
,
5708 safi_t safi
, struct bgp_aggregate
*aggregate
)
5710 struct bgp_table
*table
;
5711 struct bgp_node
*top
;
5712 struct bgp_node
*rn
;
5713 struct bgp_info
*ri
;
5714 unsigned long match
;
5716 table
= bgp
->rib
[afi
][safi
];
5718 /* If routes exists below this node, generate aggregate routes. */
5719 top
= bgp_node_get(table
, p
);
5720 for (rn
= bgp_node_get(table
, p
); rn
;
5721 rn
= bgp_route_next_until(rn
, top
)) {
5722 if (rn
->p
.prefixlen
<= p
->prefixlen
)
5726 for (ri
= rn
->info
; ri
; ri
= ri
->next
) {
5727 if (BGP_INFO_HOLDDOWN(ri
))
5730 if (ri
->sub_type
== BGP_ROUTE_AGGREGATE
)
5733 if (aggregate
->summary_only
&& ri
->extra
) {
5734 ri
->extra
->suppress
--;
5736 if (ri
->extra
->suppress
== 0) {
5738 rn
, ri
, BGP_INFO_ATTR_CHANGED
);
5745 /* If this node was suppressed, process the change. */
5747 bgp_process(bgp
, rn
, afi
, safi
);
5749 bgp_unlock_node(top
);
5752 void bgp_aggregate_increment(struct bgp
*bgp
, struct prefix
*p
,
5753 struct bgp_info
*ri
, afi_t afi
, safi_t safi
)
5755 struct bgp_node
*child
;
5756 struct bgp_node
*rn
;
5757 struct bgp_aggregate
*aggregate
;
5758 struct bgp_table
*table
;
5760 table
= bgp
->aggregate
[afi
][safi
];
5762 /* No aggregates configured. */
5763 if (bgp_table_top_nolock(table
) == NULL
)
5766 if (p
->prefixlen
== 0)
5769 if (BGP_INFO_HOLDDOWN(ri
))
5772 child
= bgp_node_get(table
, p
);
5774 /* Aggregate address configuration check. */
5775 for (rn
= child
; rn
; rn
= bgp_node_parent_nolock(rn
)) {
5776 aggregate
= bgp_aggregate_get_node_info(rn
);
5777 if (aggregate
!= NULL
&& rn
->p
.prefixlen
< p
->prefixlen
) {
5778 bgp_aggregate_delete(bgp
, &rn
->p
, afi
, safi
, aggregate
);
5779 bgp_aggregate_route(bgp
, &rn
->p
, ri
, afi
, safi
, NULL
,
5783 bgp_unlock_node(child
);
5786 void bgp_aggregate_decrement(struct bgp
*bgp
, struct prefix
*p
,
5787 struct bgp_info
*del
, afi_t afi
, safi_t safi
)
5789 struct bgp_node
*child
;
5790 struct bgp_node
*rn
;
5791 struct bgp_aggregate
*aggregate
;
5792 struct bgp_table
*table
;
5794 table
= bgp
->aggregate
[afi
][safi
];
5796 /* No aggregates configured. */
5797 if (bgp_table_top_nolock(table
) == NULL
)
5800 if (p
->prefixlen
== 0)
5803 child
= bgp_node_get(table
, p
);
5805 /* Aggregate address configuration check. */
5806 for (rn
= child
; rn
; rn
= bgp_node_parent_nolock(rn
)) {
5807 aggregate
= bgp_aggregate_get_node_info(rn
);
5808 if (aggregate
!= NULL
&& rn
->p
.prefixlen
< p
->prefixlen
) {
5809 bgp_aggregate_delete(bgp
, &rn
->p
, afi
, safi
, aggregate
);
5810 bgp_aggregate_route(bgp
, &rn
->p
, NULL
, afi
, safi
, del
,
5814 bgp_unlock_node(child
);
5817 /* Aggregate route attribute. */
5818 #define AGGREGATE_SUMMARY_ONLY 1
5819 #define AGGREGATE_AS_SET 1
5821 static int bgp_aggregate_unset(struct vty
*vty
, const char *prefix_str
,
5822 afi_t afi
, safi_t safi
)
5824 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
5827 struct bgp_node
*rn
;
5828 struct bgp_aggregate
*aggregate
;
5830 /* Convert string to prefix structure. */
5831 ret
= str2prefix(prefix_str
, &p
);
5833 vty_out(vty
, "Malformed prefix\n");
5834 return CMD_WARNING_CONFIG_FAILED
;
5838 /* Old configuration check. */
5839 rn
= bgp_node_lookup(bgp
->aggregate
[afi
][safi
], &p
);
5842 "%% There is no aggregate-address configuration.\n");
5843 return CMD_WARNING_CONFIG_FAILED
;
5846 aggregate
= bgp_aggregate_get_node_info(rn
);
5847 bgp_aggregate_delete(bgp
, &p
, afi
, safi
, aggregate
);
5848 bgp_aggregate_install(bgp
, afi
, safi
, &p
, 0, NULL
, NULL
, 0, aggregate
);
5850 /* Unlock aggregate address configuration. */
5851 bgp_aggregate_set_node_info(rn
, NULL
);
5852 bgp_aggregate_free(aggregate
);
5853 bgp_unlock_node(rn
);
5854 bgp_unlock_node(rn
);
5859 static int bgp_aggregate_set(struct vty
*vty
, const char *prefix_str
, afi_t afi
,
5860 safi_t safi
, uint8_t summary_only
, uint8_t as_set
)
5862 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
5865 struct bgp_node
*rn
;
5866 struct bgp_aggregate
*aggregate
;
5868 /* Convert string to prefix structure. */
5869 ret
= str2prefix(prefix_str
, &p
);
5871 vty_out(vty
, "Malformed prefix\n");
5872 return CMD_WARNING_CONFIG_FAILED
;
5876 if ((afi
== AFI_IP
&& p
.prefixlen
== IPV4_MAX_BITLEN
) ||
5877 (afi
== AFI_IP6
&& p
.prefixlen
== IPV6_MAX_BITLEN
)) {
5878 vty_out(vty
, "Specified prefix: %s will not result in any useful aggregation, disallowing\n",
5880 return CMD_WARNING_CONFIG_FAILED
;
5883 /* Old configuration check. */
5884 rn
= bgp_node_get(bgp
->aggregate
[afi
][safi
], &p
);
5887 vty_out(vty
, "There is already same aggregate network.\n");
5888 /* try to remove the old entry */
5889 ret
= bgp_aggregate_unset(vty
, prefix_str
, afi
, safi
);
5891 vty_out(vty
, "Error deleting aggregate.\n");
5892 bgp_unlock_node(rn
);
5893 return CMD_WARNING_CONFIG_FAILED
;
5897 /* Make aggregate address structure. */
5898 aggregate
= bgp_aggregate_new();
5899 aggregate
->summary_only
= summary_only
;
5900 aggregate
->as_set
= as_set
;
5901 aggregate
->safi
= safi
;
5902 bgp_aggregate_set_node_info(rn
, aggregate
);
5904 /* Aggregate address insert into BGP routing table. */
5905 bgp_aggregate_route(bgp
, &p
, NULL
, afi
, safi
, NULL
, aggregate
);
5910 DEFUN (aggregate_address
,
5911 aggregate_address_cmd
,
5912 "aggregate-address A.B.C.D/M [<as-set [summary-only]|summary-only [as-set]>]",
5913 "Configure BGP aggregate entries\n"
5914 "Aggregate prefix\n"
5915 "Generate AS set path information\n"
5916 "Filter more specific routes from updates\n"
5917 "Filter more specific routes from updates\n"
5918 "Generate AS set path information\n")
5921 argv_find(argv
, argc
, "A.B.C.D/M", &idx
);
5922 char *prefix
= argv
[idx
]->arg
;
5924 argv_find(argv
, argc
, "as-set", &idx
) ? AGGREGATE_AS_SET
: 0;
5926 int summary_only
= argv_find(argv
, argc
, "summary-only", &idx
)
5927 ? AGGREGATE_SUMMARY_ONLY
5930 return bgp_aggregate_set(vty
, prefix
, AFI_IP
, bgp_node_safi(vty
),
5931 summary_only
, as_set
);
5934 DEFUN (aggregate_address_mask
,
5935 aggregate_address_mask_cmd
,
5936 "aggregate-address A.B.C.D A.B.C.D [<as-set [summary-only]|summary-only [as-set]>]",
5937 "Configure BGP aggregate entries\n"
5938 "Aggregate address\n"
5940 "Generate AS set path information\n"
5941 "Filter more specific routes from updates\n"
5942 "Filter more specific routes from updates\n"
5943 "Generate AS set path information\n")
5946 argv_find(argv
, argc
, "A.B.C.D", &idx
);
5947 char *prefix
= argv
[idx
]->arg
;
5948 char *mask
= argv
[idx
+ 1]->arg
;
5950 argv_find(argv
, argc
, "as-set", &idx
) ? AGGREGATE_AS_SET
: 0;
5952 int summary_only
= argv_find(argv
, argc
, "summary-only", &idx
)
5953 ? AGGREGATE_SUMMARY_ONLY
5956 char prefix_str
[BUFSIZ
];
5957 int ret
= netmask_str2prefix_str(prefix
, mask
, prefix_str
);
5960 vty_out(vty
, "%% Inconsistent address and mask\n");
5961 return CMD_WARNING_CONFIG_FAILED
;
5964 return bgp_aggregate_set(vty
, prefix_str
, AFI_IP
, bgp_node_safi(vty
),
5965 summary_only
, as_set
);
5968 DEFUN (no_aggregate_address
,
5969 no_aggregate_address_cmd
,
5970 "no aggregate-address A.B.C.D/M [<as-set [summary-only]|summary-only [as-set]>]",
5972 "Configure BGP aggregate entries\n"
5973 "Aggregate prefix\n"
5974 "Generate AS set path information\n"
5975 "Filter more specific routes from updates\n"
5976 "Filter more specific routes from updates\n"
5977 "Generate AS set path information\n")
5980 argv_find(argv
, argc
, "A.B.C.D/M", &idx
);
5981 char *prefix
= argv
[idx
]->arg
;
5982 return bgp_aggregate_unset(vty
, prefix
, AFI_IP
, bgp_node_safi(vty
));
5985 DEFUN (no_aggregate_address_mask
,
5986 no_aggregate_address_mask_cmd
,
5987 "no aggregate-address A.B.C.D A.B.C.D [<as-set [summary-only]|summary-only [as-set]>]",
5989 "Configure BGP aggregate entries\n"
5990 "Aggregate address\n"
5992 "Generate AS set path information\n"
5993 "Filter more specific routes from updates\n"
5994 "Filter more specific routes from updates\n"
5995 "Generate AS set path information\n")
5998 argv_find(argv
, argc
, "A.B.C.D", &idx
);
5999 char *prefix
= argv
[idx
]->arg
;
6000 char *mask
= argv
[idx
+ 1]->arg
;
6002 char prefix_str
[BUFSIZ
];
6003 int ret
= netmask_str2prefix_str(prefix
, mask
, prefix_str
);
6006 vty_out(vty
, "%% Inconsistent address and mask\n");
6007 return CMD_WARNING_CONFIG_FAILED
;
6010 return bgp_aggregate_unset(vty
, prefix_str
, AFI_IP
, bgp_node_safi(vty
));
6013 DEFUN (ipv6_aggregate_address
,
6014 ipv6_aggregate_address_cmd
,
6015 "aggregate-address X:X::X:X/M [summary-only]",
6016 "Configure BGP aggregate entries\n"
6017 "Aggregate prefix\n"
6018 "Filter more specific routes from updates\n")
6021 argv_find(argv
, argc
, "X:X::X:X/M", &idx
);
6022 char *prefix
= argv
[idx
]->arg
;
6023 int sum_only
= argv_find(argv
, argc
, "summary-only", &idx
)
6024 ? AGGREGATE_SUMMARY_ONLY
6026 return bgp_aggregate_set(vty
, prefix
, AFI_IP6
, SAFI_UNICAST
, sum_only
,
6030 DEFUN (no_ipv6_aggregate_address
,
6031 no_ipv6_aggregate_address_cmd
,
6032 "no aggregate-address X:X::X:X/M [summary-only]",
6034 "Configure BGP aggregate entries\n"
6035 "Aggregate prefix\n"
6036 "Filter more specific routes from updates\n")
6039 argv_find(argv
, argc
, "X:X::X:X/M", &idx
);
6040 char *prefix
= argv
[idx
]->arg
;
6041 return bgp_aggregate_unset(vty
, prefix
, AFI_IP6
, SAFI_UNICAST
);
6044 /* Redistribute route treatment. */
6045 void bgp_redistribute_add(struct bgp
*bgp
, struct prefix
*p
,
6046 const union g_addr
*nexthop
, ifindex_t ifindex
,
6047 enum nexthop_types_t nhtype
, uint32_t metric
,
6048 uint8_t type
, unsigned short instance
,
6051 struct bgp_info
*new;
6052 struct bgp_info
*bi
;
6053 struct bgp_info info
;
6054 struct bgp_node
*bn
;
6056 struct attr
*new_attr
;
6059 struct bgp_redist
*red
;
6061 /* Make default attribute. */
6062 bgp_attr_default_set(&attr
, BGP_ORIGIN_INCOMPLETE
);
6065 case NEXTHOP_TYPE_IFINDEX
:
6067 case NEXTHOP_TYPE_IPV4
:
6068 case NEXTHOP_TYPE_IPV4_IFINDEX
:
6069 attr
.nexthop
= nexthop
->ipv4
;
6071 case NEXTHOP_TYPE_IPV6
:
6072 case NEXTHOP_TYPE_IPV6_IFINDEX
:
6073 attr
.mp_nexthop_global
= nexthop
->ipv6
;
6074 attr
.mp_nexthop_len
= BGP_ATTR_NHLEN_IPV6_GLOBAL
;
6076 case NEXTHOP_TYPE_BLACKHOLE
:
6077 switch (p
->family
) {
6079 attr
.nexthop
.s_addr
= INADDR_ANY
;
6082 memset(&attr
.mp_nexthop_global
, 0,
6083 sizeof(attr
.mp_nexthop_global
));
6084 attr
.mp_nexthop_len
= BGP_ATTR_NHLEN_IPV6_GLOBAL
;
6089 attr
.nh_ifindex
= ifindex
;
6092 attr
.flag
|= ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
);
6095 afi
= family2afi(p
->family
);
6097 red
= bgp_redist_lookup(bgp
, afi
, type
, instance
);
6099 struct attr attr_new
;
6101 /* Copy attribute for modification. */
6102 bgp_attr_dup(&attr_new
, &attr
);
6104 if (red
->redist_metric_flag
)
6105 attr_new
.med
= red
->redist_metric
;
6107 /* Apply route-map. */
6108 if (red
->rmap
.name
) {
6109 memset(&info
, 0, sizeof(struct bgp_info
));
6110 info
.peer
= bgp
->peer_self
;
6111 info
.attr
= &attr_new
;
6113 SET_FLAG(bgp
->peer_self
->rmap_type
,
6114 PEER_RMAP_TYPE_REDISTRIBUTE
);
6116 ret
= route_map_apply(red
->rmap
.map
, p
, RMAP_BGP
,
6119 bgp
->peer_self
->rmap_type
= 0;
6121 if (ret
== RMAP_DENYMATCH
) {
6122 /* Free uninterned attribute. */
6123 bgp_attr_flush(&attr_new
);
6125 /* Unintern original. */
6126 aspath_unintern(&attr
.aspath
);
6127 bgp_redistribute_delete(bgp
, p
, type
, instance
);
6132 if (bgp_flag_check(bgp
, BGP_FLAG_GRACEFUL_SHUTDOWN
))
6133 bgp_attr_add_gshut_community(&attr_new
);
6135 bn
= bgp_afi_node_get(bgp
->rib
[afi
][SAFI_UNICAST
], afi
,
6136 SAFI_UNICAST
, p
, NULL
);
6138 new_attr
= bgp_attr_intern(&attr_new
);
6140 for (bi
= bn
->info
; bi
; bi
= bi
->next
)
6141 if (bi
->peer
== bgp
->peer_self
6142 && bi
->sub_type
== BGP_ROUTE_REDISTRIBUTE
)
6146 /* Ensure the (source route) type is updated. */
6148 if (attrhash_cmp(bi
->attr
, new_attr
)
6149 && !CHECK_FLAG(bi
->flags
, BGP_INFO_REMOVED
)) {
6150 bgp_attr_unintern(&new_attr
);
6151 aspath_unintern(&attr
.aspath
);
6152 bgp_unlock_node(bn
);
6155 /* The attribute is changed. */
6156 bgp_info_set_flag(bn
, bi
,
6157 BGP_INFO_ATTR_CHANGED
);
6159 /* Rewrite BGP route information. */
6160 if (CHECK_FLAG(bi
->flags
, BGP_INFO_REMOVED
))
6161 bgp_info_restore(bn
, bi
);
6163 bgp_aggregate_decrement(bgp
, p
, bi
, afi
,
6165 bgp_attr_unintern(&bi
->attr
);
6166 bi
->attr
= new_attr
;
6167 bi
->uptime
= bgp_clock();
6169 /* Process change. */
6170 bgp_aggregate_increment(bgp
, p
, bi
, afi
,
6172 bgp_process(bgp
, bn
, afi
, SAFI_UNICAST
);
6173 bgp_unlock_node(bn
);
6174 aspath_unintern(&attr
.aspath
);
6176 if ((bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
)
6178 == BGP_INSTANCE_TYPE_DEFAULT
)) {
6180 vpn_leak_from_vrf_update(
6181 bgp_get_default(), bgp
, bi
);
6187 new = info_make(type
, BGP_ROUTE_REDISTRIBUTE
, instance
,
6188 bgp
->peer_self
, new_attr
, bn
);
6189 SET_FLAG(new->flags
, BGP_INFO_VALID
);
6191 bgp_aggregate_increment(bgp
, p
, new, afi
, SAFI_UNICAST
);
6192 bgp_info_add(bn
, new);
6193 bgp_unlock_node(bn
);
6194 bgp_process(bgp
, bn
, afi
, SAFI_UNICAST
);
6196 if ((bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
)
6197 || (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
6199 vpn_leak_from_vrf_update(bgp_get_default(), bgp
, new);
6203 /* Unintern original. */
6204 aspath_unintern(&attr
.aspath
);
6207 void bgp_redistribute_delete(struct bgp
*bgp
, struct prefix
*p
, uint8_t type
,
6208 unsigned short instance
)
6211 struct bgp_node
*rn
;
6212 struct bgp_info
*ri
;
6213 struct bgp_redist
*red
;
6215 afi
= family2afi(p
->family
);
6217 red
= bgp_redist_lookup(bgp
, afi
, type
, instance
);
6219 rn
= bgp_afi_node_get(bgp
->rib
[afi
][SAFI_UNICAST
], afi
,
6220 SAFI_UNICAST
, p
, NULL
);
6222 for (ri
= rn
->info
; ri
; ri
= ri
->next
)
6223 if (ri
->peer
== bgp
->peer_self
&& ri
->type
== type
)
6227 if ((bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
)
6228 || (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
6230 vpn_leak_from_vrf_withdraw(bgp_get_default(),
6233 bgp_aggregate_decrement(bgp
, p
, ri
, afi
, SAFI_UNICAST
);
6234 bgp_info_delete(rn
, ri
);
6235 bgp_process(bgp
, rn
, afi
, SAFI_UNICAST
);
6237 bgp_unlock_node(rn
);
6241 /* Withdraw specified route type's route. */
6242 void bgp_redistribute_withdraw(struct bgp
*bgp
, afi_t afi
, int type
,
6243 unsigned short instance
)
6245 struct bgp_node
*rn
;
6246 struct bgp_info
*ri
;
6247 struct bgp_table
*table
;
6249 table
= bgp
->rib
[afi
][SAFI_UNICAST
];
6251 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
)) {
6252 for (ri
= rn
->info
; ri
; ri
= ri
->next
)
6253 if (ri
->peer
== bgp
->peer_self
&& ri
->type
== type
6254 && ri
->instance
== instance
)
6258 if ((bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
)
6259 || (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
6261 vpn_leak_from_vrf_withdraw(bgp_get_default(),
6264 bgp_aggregate_decrement(bgp
, &rn
->p
, ri
, afi
,
6266 bgp_info_delete(rn
, ri
);
6267 bgp_process(bgp
, rn
, afi
, SAFI_UNICAST
);
6272 /* Static function to display route. */
6273 static void route_vty_out_route(struct prefix
*p
, struct vty
*vty
,
6279 if (p
->family
== AF_INET
) {
6283 inet_ntop(p
->family
, &p
->u
.prefix
, buf
, BUFSIZ
),
6286 json_object_string_add(json
, "prefix",
6287 inet_ntop(p
->family
,
6290 json_object_int_add(json
, "prefixLen", p
->prefixlen
);
6292 } else if (p
->family
== AF_ETHERNET
) {
6293 prefix2str(p
, buf
, PREFIX_STRLEN
);
6294 len
= vty_out(vty
, "%s", buf
);
6295 } else if (p
->family
== AF_EVPN
) {
6299 bgp_evpn_route2str((struct prefix_evpn
*)p
, buf
,
6302 bgp_evpn_route2json((struct prefix_evpn
*)p
, json
);
6303 } else if (p
->family
== AF_FLOWSPEC
) {
6304 route_vty_out_flowspec(vty
, p
, NULL
,
6306 NLRI_STRING_FORMAT_JSON_SIMPLE
:
6307 NLRI_STRING_FORMAT_MIN
, json
);
6312 inet_ntop(p
->family
, &p
->u
.prefix
, buf
, BUFSIZ
),
6319 vty_out(vty
, "\n%*s", 20, " ");
6321 vty_out(vty
, "%*s", len
, " ");
6325 enum bgp_display_type
{
6329 /* Print the short form route status for a bgp_info */
6330 static void route_vty_short_status_out(struct vty
*vty
, struct bgp_info
*binfo
,
6331 json_object
*json_path
)
6335 /* Route status display. */
6336 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_REMOVED
))
6337 json_object_boolean_true_add(json_path
, "removed");
6339 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_STALE
))
6340 json_object_boolean_true_add(json_path
, "stale");
6342 if (binfo
->extra
&& binfo
->extra
->suppress
)
6343 json_object_boolean_true_add(json_path
, "suppressed");
6345 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_VALID
)
6346 && !CHECK_FLAG(binfo
->flags
, BGP_INFO_HISTORY
))
6347 json_object_boolean_true_add(json_path
, "valid");
6350 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_HISTORY
))
6351 json_object_boolean_true_add(json_path
, "history");
6353 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_DAMPED
))
6354 json_object_boolean_true_add(json_path
, "damped");
6356 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_SELECTED
))
6357 json_object_boolean_true_add(json_path
, "bestpath");
6359 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_MULTIPATH
))
6360 json_object_boolean_true_add(json_path
, "multipath");
6362 /* Internal route. */
6363 if ((binfo
->peer
->as
)
6364 && (binfo
->peer
->as
== binfo
->peer
->local_as
))
6365 json_object_string_add(json_path
, "pathFrom",
6368 json_object_string_add(json_path
, "pathFrom",
6374 /* Route status display. */
6375 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_REMOVED
))
6377 else if (CHECK_FLAG(binfo
->flags
, BGP_INFO_STALE
))
6379 else if (binfo
->extra
&& binfo
->extra
->suppress
)
6381 else if (CHECK_FLAG(binfo
->flags
, BGP_INFO_VALID
)
6382 && !CHECK_FLAG(binfo
->flags
, BGP_INFO_HISTORY
))
6388 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_HISTORY
))
6390 else if (CHECK_FLAG(binfo
->flags
, BGP_INFO_DAMPED
))
6392 else if (CHECK_FLAG(binfo
->flags
, BGP_INFO_SELECTED
))
6394 else if (CHECK_FLAG(binfo
->flags
, BGP_INFO_MULTIPATH
))
6399 /* Internal route. */
6400 if (binfo
->peer
&& (binfo
->peer
->as
)
6401 && (binfo
->peer
->as
== binfo
->peer
->local_as
))
6407 /* called from terminal list command */
6408 void route_vty_out(struct vty
*vty
, struct prefix
*p
, struct bgp_info
*binfo
,
6409 int display
, safi_t safi
, json_object
*json_paths
)
6412 json_object
*json_path
= NULL
;
6413 json_object
*json_nexthops
= NULL
;
6414 json_object
*json_nexthop_global
= NULL
;
6415 json_object
*json_nexthop_ll
= NULL
;
6416 char vrf_id_str
[VRF_NAMSIZ
] = {0};
6417 bool nexthop_self
= CHECK_FLAG(binfo
->flags
, BGP_INFO_ANNC_NH_SELF
)
6420 bool nexthop_othervrf
= false;
6421 vrf_id_t nexthop_vrfid
= VRF_DEFAULT
;
6422 const char *nexthop_vrfname
= "Default";
6425 json_path
= json_object_new_object();
6427 /* short status lead text */
6428 route_vty_short_status_out(vty
, binfo
, json_path
);
6431 /* print prefix and mask */
6433 route_vty_out_route(p
, vty
, json_path
);
6435 vty_out(vty
, "%*s", 17, " ");
6437 route_vty_out_route(p
, vty
, json_path
);
6440 /* Print attribute */
6444 json_object_array_add(json_paths
, json_path
);
6452 * If vrf id of nexthop is different from that of prefix,
6453 * set up printable string to append
6455 if (binfo
->extra
&& binfo
->extra
->bgp_orig
) {
6456 const char *self
= "";
6461 nexthop_othervrf
= true;
6462 nexthop_vrfid
= binfo
->extra
->bgp_orig
->vrf_id
;
6464 if (binfo
->extra
->bgp_orig
->vrf_id
== VRF_UNKNOWN
)
6465 snprintf(vrf_id_str
, sizeof(vrf_id_str
),
6466 "@%s%s", VRFID_NONE_STR
, self
);
6468 snprintf(vrf_id_str
, sizeof(vrf_id_str
), "@%u%s",
6469 binfo
->extra
->bgp_orig
->vrf_id
, self
);
6471 if (binfo
->extra
->bgp_orig
->inst_type
!=
6472 BGP_INSTANCE_TYPE_DEFAULT
)
6474 nexthop_vrfname
= binfo
->extra
->bgp_orig
->name
;
6476 const char *self
= "";
6481 snprintf(vrf_id_str
, sizeof(vrf_id_str
), "%s", self
);
6485 * For ENCAP and EVPN routes, nexthop address family is not
6486 * neccessarily the same as the prefix address family.
6487 * Both SAFI_MPLS_VPN and SAFI_ENCAP use the MP nexthop field
6488 * EVPN routes are also exchanged with a MP nexthop. Currently,
6490 * is only IPv4, the value will be present in either
6492 * attr->mp_nexthop_global_in
6494 if ((safi
== SAFI_ENCAP
) || (safi
== SAFI_MPLS_VPN
)) {
6497 int af
= NEXTHOP_FAMILY(attr
->mp_nexthop_len
);
6501 sprintf(nexthop
, "%s",
6502 inet_ntop(af
, &attr
->mp_nexthop_global_in
, buf
,
6506 sprintf(nexthop
, "%s",
6507 inet_ntop(af
, &attr
->mp_nexthop_global
, buf
,
6511 sprintf(nexthop
, "?");
6516 json_nexthop_global
= json_object_new_object();
6518 json_object_string_add(json_nexthop_global
, "afi",
6519 (af
== AF_INET
) ? "ip" : "ipv6");
6520 json_object_string_add(json_nexthop_global
,
6521 (af
== AF_INET
) ? "ip" : "ipv6",
6523 json_object_boolean_true_add(json_nexthop_global
,
6526 vty_out(vty
, "%s%s", nexthop
, vrf_id_str
);
6527 } else if (safi
== SAFI_EVPN
) {
6529 json_nexthop_global
= json_object_new_object();
6531 json_object_string_add(json_nexthop_global
, "ip",
6532 inet_ntoa(attr
->nexthop
));
6533 json_object_string_add(json_nexthop_global
, "afi",
6535 json_object_boolean_true_add(json_nexthop_global
,
6538 vty_out(vty
, "%-16s%s", inet_ntoa(attr
->nexthop
),
6540 } else if (safi
== SAFI_FLOWSPEC
) {
6541 if (attr
->nexthop
.s_addr
!= 0) {
6543 json_nexthop_global
= json_object_new_object();
6544 json_object_string_add(
6545 json_nexthop_global
, "ip",
6546 inet_ntoa(attr
->nexthop
));
6547 json_object_string_add(json_nexthop_global
,
6549 json_object_boolean_true_add(json_nexthop_global
,
6552 vty_out(vty
, "%-16s", inet_ntoa(attr
->nexthop
));
6555 } else if (p
->family
== AF_INET
&& !BGP_ATTR_NEXTHOP_AFI_IP6(attr
)) {
6557 json_nexthop_global
= json_object_new_object();
6559 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_EVPN
))
6560 json_object_string_add(
6561 json_nexthop_global
, "ip",
6562 inet_ntoa(attr
->mp_nexthop_global_in
));
6564 json_object_string_add(
6565 json_nexthop_global
, "ip",
6566 inet_ntoa(attr
->nexthop
));
6568 json_object_string_add(json_nexthop_global
, "afi",
6570 json_object_boolean_true_add(json_nexthop_global
,
6575 snprintf(buf
, sizeof(buf
), "%s%s",
6576 inet_ntoa(attr
->nexthop
), vrf_id_str
);
6577 vty_out(vty
, "%-16s", buf
);
6582 else if (p
->family
== AF_INET6
|| BGP_ATTR_NEXTHOP_AFI_IP6(attr
)) {
6587 json_nexthop_global
= json_object_new_object();
6588 json_object_string_add(
6589 json_nexthop_global
, "ip",
6590 inet_ntop(AF_INET6
, &attr
->mp_nexthop_global
,
6592 json_object_string_add(json_nexthop_global
, "afi",
6594 json_object_string_add(json_nexthop_global
, "scope",
6597 /* We display both LL & GL if both have been
6599 if ((attr
->mp_nexthop_len
== 32)
6600 || (binfo
->peer
->conf_if
)) {
6601 json_nexthop_ll
= json_object_new_object();
6602 json_object_string_add(
6603 json_nexthop_ll
, "ip",
6605 &attr
->mp_nexthop_local
, buf
,
6607 json_object_string_add(json_nexthop_ll
, "afi",
6609 json_object_string_add(json_nexthop_ll
, "scope",
6612 if ((IPV6_ADDR_CMP(&attr
->mp_nexthop_global
,
6613 &attr
->mp_nexthop_local
)
6615 && !attr
->mp_nexthop_prefer_global
)
6616 json_object_boolean_true_add(
6617 json_nexthop_ll
, "used");
6619 json_object_boolean_true_add(
6620 json_nexthop_global
, "used");
6622 json_object_boolean_true_add(
6623 json_nexthop_global
, "used");
6625 /* Display LL if LL/Global both in table unless
6626 * prefer-global is set */
6627 if (((attr
->mp_nexthop_len
== 32)
6628 && !attr
->mp_nexthop_prefer_global
)
6629 || (binfo
->peer
->conf_if
)) {
6630 if (binfo
->peer
->conf_if
) {
6631 len
= vty_out(vty
, "%s",
6632 binfo
->peer
->conf_if
);
6633 len
= 16 - len
; /* len of IPv6
6639 vty_out(vty
, "\n%*s", 36, " ");
6641 vty_out(vty
, "%*s", len
, " ");
6647 &attr
->mp_nexthop_local
,
6653 vty_out(vty
, "\n%*s", 36, " ");
6655 vty_out(vty
, "%*s", len
, " ");
6661 &attr
->mp_nexthop_global
, buf
,
6667 vty_out(vty
, "\n%*s", 36, " ");
6669 vty_out(vty
, "%*s", len
, " ");
6675 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
))
6677 json_object_int_add(json_path
, "med", attr
->med
);
6679 vty_out(vty
, "%10u", attr
->med
);
6680 else if (!json_paths
)
6684 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
))
6686 json_object_int_add(json_path
, "localpref",
6689 vty_out(vty
, "%7u", attr
->local_pref
);
6690 else if (!json_paths
)
6694 json_object_int_add(json_path
, "weight", attr
->weight
);
6696 vty_out(vty
, "%7u ", attr
->weight
);
6700 json_object_string_add(
6701 json_path
, "peerId",
6702 sockunion2str(&binfo
->peer
->su
, buf
, SU_ADDRSTRLEN
));
6708 json_object_string_add(json_path
, "aspath",
6711 aspath_print_vty(vty
, "%s", attr
->aspath
, " ");
6716 json_object_string_add(json_path
, "origin",
6717 bgp_origin_long_str
[attr
->origin
]);
6719 vty_out(vty
, "%s", bgp_origin_str
[attr
->origin
]);
6723 json_object_boolean_true_add(json_path
,
6724 "announceNexthopSelf");
6725 if (nexthop_othervrf
) {
6726 json_object_string_add(json_path
, "nhVrfName",
6729 json_object_int_add(json_path
, "nhVrfId",
6730 ((nexthop_vrfid
== VRF_UNKNOWN
)
6732 : (int)nexthop_vrfid
));
6737 if (json_nexthop_global
|| json_nexthop_ll
) {
6738 json_nexthops
= json_object_new_array();
6740 if (json_nexthop_global
)
6741 json_object_array_add(json_nexthops
,
6742 json_nexthop_global
);
6744 if (json_nexthop_ll
)
6745 json_object_array_add(json_nexthops
,
6748 json_object_object_add(json_path
, "nexthops",
6752 json_object_array_add(json_paths
, json_path
);
6756 /* prints an additional line, indented, with VNC info, if
6758 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_ENCAP
))
6759 rfapi_vty_out_vncinfo(vty
, p
, binfo
, safi
);
6764 /* called from terminal list command */
6765 void route_vty_out_tmp(struct vty
*vty
, struct prefix
*p
, struct attr
*attr
,
6766 safi_t safi
, bool use_json
, json_object
*json_ar
)
6768 json_object
*json_status
= NULL
;
6769 json_object
*json_net
= NULL
;
6771 /* Route status display. */
6773 json_status
= json_object_new_object();
6774 json_net
= json_object_new_object();
6781 /* print prefix and mask */
6783 json_object_string_add(
6784 json_net
, "addrPrefix",
6785 inet_ntop(p
->family
, &p
->u
.prefix
, buff
, BUFSIZ
));
6787 route_vty_out_route(p
, vty
, NULL
);
6789 /* Print attribute */
6792 if (p
->family
== AF_INET
6793 && (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
6794 || safi
== SAFI_EVPN
6795 || !BGP_ATTR_NEXTHOP_AFI_IP6(attr
))) {
6796 if (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
6797 || safi
== SAFI_EVPN
)
6798 json_object_string_add(
6799 json_net
, "nextHop",
6801 attr
->mp_nexthop_global_in
));
6803 json_object_string_add(
6804 json_net
, "nextHop",
6805 inet_ntoa(attr
->nexthop
));
6806 } else if (p
->family
== AF_INET6
6807 || BGP_ATTR_NEXTHOP_AFI_IP6(attr
)) {
6810 json_object_string_add(
6811 json_net
, "netHopGloabal",
6813 &attr
->mp_nexthop_global
, buf
,
6818 & ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
))
6819 json_object_int_add(json_net
, "metric",
6822 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
))
6823 json_object_int_add(json_net
, "localPref",
6826 json_object_int_add(json_net
, "weight", attr
->weight
);
6830 json_object_string_add(json_net
, "asPath",
6834 json_object_string_add(json_net
, "bgpOriginCode",
6835 bgp_origin_str
[attr
->origin
]);
6837 if (p
->family
== AF_INET
6838 && (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
6839 || safi
== SAFI_EVPN
6840 || !BGP_ATTR_NEXTHOP_AFI_IP6(attr
))) {
6841 if (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
6842 || safi
== SAFI_EVPN
)
6843 vty_out(vty
, "%-16s",
6845 attr
->mp_nexthop_global_in
));
6847 vty_out(vty
, "%-16s",
6848 inet_ntoa(attr
->nexthop
));
6849 } else if (p
->family
== AF_INET6
6850 || BGP_ATTR_NEXTHOP_AFI_IP6(attr
)) {
6857 &attr
->mp_nexthop_global
, buf
,
6861 vty_out(vty
, "\n%*s", 36, " ");
6863 vty_out(vty
, "%*s", len
, " ");
6866 & ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
))
6867 vty_out(vty
, "%10u", attr
->med
);
6871 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
))
6872 vty_out(vty
, "%7u", attr
->local_pref
);
6876 vty_out(vty
, "%7u ", attr
->weight
);
6880 aspath_print_vty(vty
, "%s", attr
->aspath
, " ");
6883 vty_out(vty
, "%s", bgp_origin_str
[attr
->origin
]);
6887 json_object_boolean_true_add(json_status
, "*");
6888 json_object_boolean_true_add(json_status
, ">");
6889 json_object_object_add(json_net
, "appliedStatusSymbols",
6891 char buf_cut
[BUFSIZ
];
6892 json_object_object_add(
6894 inet_ntop(p
->family
, &p
->u
.prefix
, buf_cut
, BUFSIZ
),
6900 void route_vty_out_tag(struct vty
*vty
, struct prefix
*p
,
6901 struct bgp_info
*binfo
, int display
, safi_t safi
,
6904 json_object
*json_out
= NULL
;
6906 mpls_label_t label
= MPLS_INVALID_LABEL
;
6912 json_out
= json_object_new_object();
6914 /* short status lead text */
6915 route_vty_short_status_out(vty
, binfo
, json_out
);
6917 /* print prefix and mask */
6920 route_vty_out_route(p
, vty
, NULL
);
6922 vty_out(vty
, "%*s", 17, " ");
6925 /* Print attribute */
6928 if (((p
->family
== AF_INET
)
6929 && ((safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
)))
6930 || (safi
== SAFI_EVPN
&& !BGP_ATTR_NEXTHOP_AFI_IP6(attr
))
6931 || (!BGP_ATTR_NEXTHOP_AFI_IP6(attr
))) {
6932 if (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
6933 || safi
== SAFI_EVPN
) {
6935 json_object_string_add(
6936 json_out
, "mpNexthopGlobalIn",
6938 attr
->mp_nexthop_global_in
));
6940 vty_out(vty
, "%-16s",
6942 attr
->mp_nexthop_global_in
));
6945 json_object_string_add(
6946 json_out
, "nexthop",
6947 inet_ntoa(attr
->nexthop
));
6949 vty_out(vty
, "%-16s",
6950 inet_ntoa(attr
->nexthop
));
6952 } else if (((p
->family
== AF_INET6
)
6953 && ((safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
)))
6954 || (safi
== SAFI_EVPN
6955 && BGP_ATTR_NEXTHOP_AFI_IP6(attr
))
6956 || (BGP_ATTR_NEXTHOP_AFI_IP6(attr
))) {
6960 if (attr
->mp_nexthop_len
6961 == BGP_ATTR_NHLEN_IPV6_GLOBAL
) {
6963 json_object_string_add(
6964 json_out
, "mpNexthopGlobalIn",
6967 &attr
->mp_nexthop_global
,
6968 buf_a
, sizeof(buf_a
)));
6973 &attr
->mp_nexthop_global
,
6974 buf_a
, sizeof(buf_a
)));
6975 } else if (attr
->mp_nexthop_len
6976 == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL
) {
6979 &attr
->mp_nexthop_global
,
6980 buf_a
, sizeof(buf_a
));
6982 &attr
->mp_nexthop_local
,
6983 buf_b
, sizeof(buf_b
));
6984 sprintf(buf_c
, "%s(%s)", buf_a
, buf_b
);
6985 json_object_string_add(
6987 "mpNexthopGlobalLocal", buf_c
);
6989 vty_out(vty
, "%s(%s)",
6992 &attr
->mp_nexthop_global
,
6993 buf_a
, sizeof(buf_a
)),
6996 &attr
->mp_nexthop_local
,
6997 buf_b
, sizeof(buf_b
)));
7002 label
= decode_label(&binfo
->extra
->label
[0]);
7004 if (bgp_is_valid_label(&label
)) {
7006 json_object_int_add(json_out
, "notag", label
);
7007 json_object_array_add(json
, json_out
);
7009 vty_out(vty
, "notag/%d", label
);
7015 void route_vty_out_overlay(struct vty
*vty
, struct prefix
*p
,
7016 struct bgp_info
*binfo
, int display
,
7017 json_object
*json_paths
)
7021 json_object
*json_path
= NULL
;
7024 json_path
= json_object_new_object();
7029 /* short status lead text */
7030 route_vty_short_status_out(vty
, binfo
, json_path
);
7032 /* print prefix and mask */
7034 route_vty_out_route(p
, vty
, NULL
);
7036 vty_out(vty
, "%*s", 17, " ");
7038 /* Print attribute */
7042 int af
= NEXTHOP_FAMILY(attr
->mp_nexthop_len
);
7046 vty_out(vty
, "%-16s",
7047 inet_ntop(af
, &attr
->mp_nexthop_global_in
, buf
,
7051 vty_out(vty
, "%s(%s)",
7052 inet_ntop(af
, &attr
->mp_nexthop_global
, buf
,
7054 inet_ntop(af
, &attr
->mp_nexthop_local
, buf1
,
7061 char *str
= esi2str(&(attr
->evpn_overlay
.eth_s_id
));
7063 vty_out(vty
, "%s", str
);
7064 XFREE(MTYPE_TMP
, str
);
7066 if (is_evpn_prefix_ipaddr_v4((struct prefix_evpn
*)p
)) {
7068 inet_ntoa(attr
->evpn_overlay
.gw_ip
.ipv4
));
7069 } else if (is_evpn_prefix_ipaddr_v6((struct prefix_evpn
*)p
)) {
7072 &(attr
->evpn_overlay
.gw_ip
.ipv6
), buf
,
7075 if (attr
->ecommunity
) {
7077 struct ecommunity_val
*routermac
= ecommunity_lookup(
7078 attr
->ecommunity
, ECOMMUNITY_ENCODE_EVPN
,
7079 ECOMMUNITY_EVPN_SUBTYPE_ROUTERMAC
);
7081 mac
= ecom_mac2str((char *)routermac
->val
);
7083 vty_out(vty
, "/%s", (char *)mac
);
7084 XFREE(MTYPE_TMP
, mac
);
7092 /* dampening route */
7093 static void damp_route_vty_out(struct vty
*vty
, struct prefix
*p
,
7094 struct bgp_info
*binfo
, int display
, safi_t safi
,
7095 bool use_json
, json_object
*json
)
7099 char timebuf
[BGP_UPTIME_LEN
];
7101 /* short status lead text */
7102 route_vty_short_status_out(vty
, binfo
, json
);
7104 /* print prefix and mask */
7107 route_vty_out_route(p
, vty
, NULL
);
7109 vty_out(vty
, "%*s", 17, " ");
7112 len
= vty_out(vty
, "%s", binfo
->peer
->host
);
7116 vty_out(vty
, "\n%*s", 34, " ");
7119 json_object_int_add(json
, "peerHost", len
);
7121 vty_out(vty
, "%*s", len
, " ");
7125 bgp_damp_reuse_time_vty(vty
, binfo
, timebuf
, BGP_UPTIME_LEN
,
7128 vty_out(vty
, "%s ", bgp_damp_reuse_time_vty(vty
, binfo
, timebuf
,
7132 /* Print attribute */
7138 json_object_string_add(json
, "asPath",
7141 aspath_print_vty(vty
, "%s", attr
->aspath
, " ");
7146 json_object_string_add(json
, "origin",
7147 bgp_origin_str
[attr
->origin
]);
7149 vty_out(vty
, "%s", bgp_origin_str
[attr
->origin
]);
7156 static void flap_route_vty_out(struct vty
*vty
, struct prefix
*p
,
7157 struct bgp_info
*binfo
, int display
, safi_t safi
,
7158 bool use_json
, json_object
*json
)
7161 struct bgp_damp_info
*bdi
;
7162 char timebuf
[BGP_UPTIME_LEN
];
7168 bdi
= binfo
->extra
->damp_info
;
7170 /* short status lead text */
7171 route_vty_short_status_out(vty
, binfo
, json
);
7173 /* print prefix and mask */
7176 route_vty_out_route(p
, vty
, NULL
);
7178 vty_out(vty
, "%*s", 17, " ");
7181 len
= vty_out(vty
, "%s", binfo
->peer
->host
);
7185 vty_out(vty
, "\n%*s", 33, " ");
7188 json_object_int_add(json
, "peerHost", len
);
7190 vty_out(vty
, "%*s", len
, " ");
7193 len
= vty_out(vty
, "%d", bdi
->flap
);
7200 json_object_int_add(json
, "bdiFlap", len
);
7202 vty_out(vty
, "%*s", len
, " ");
7206 peer_uptime(bdi
->start_time
, timebuf
, BGP_UPTIME_LEN
, use_json
,
7209 vty_out(vty
, "%s ", peer_uptime(bdi
->start_time
, timebuf
,
7210 BGP_UPTIME_LEN
, 0, NULL
));
7212 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_DAMPED
)
7213 && !CHECK_FLAG(binfo
->flags
, BGP_INFO_HISTORY
)) {
7215 bgp_damp_reuse_time_vty(vty
, binfo
, timebuf
,
7216 BGP_UPTIME_LEN
, use_json
, json
);
7219 bgp_damp_reuse_time_vty(vty
, binfo
, timebuf
,
7224 vty_out(vty
, "%*s ", 8, " ");
7227 /* Print attribute */
7233 json_object_string_add(json
, "asPath",
7236 aspath_print_vty(vty
, "%s", attr
->aspath
, " ");
7241 json_object_string_add(json
, "origin",
7242 bgp_origin_str
[attr
->origin
]);
7244 vty_out(vty
, "%s", bgp_origin_str
[attr
->origin
]);
7250 static void route_vty_out_advertised_to(struct vty
*vty
, struct peer
*peer
,
7251 int *first
, const char *header
,
7252 json_object
*json_adv_to
)
7254 char buf1
[INET6_ADDRSTRLEN
];
7255 json_object
*json_peer
= NULL
;
7258 /* 'advertised-to' is a dictionary of peers we have advertised
7260 * prefix too. The key is the peer's IP or swpX, the value is
7262 * hostname if we know it and "" if not.
7264 json_peer
= json_object_new_object();
7267 json_object_string_add(json_peer
, "hostname",
7271 json_object_object_add(json_adv_to
, peer
->conf_if
,
7274 json_object_object_add(
7276 sockunion2str(&peer
->su
, buf1
, SU_ADDRSTRLEN
),
7280 vty_out(vty
, "%s", header
);
7285 && bgp_flag_check(peer
->bgp
, BGP_FLAG_SHOW_HOSTNAME
)) {
7287 vty_out(vty
, " %s(%s)", peer
->hostname
,
7290 vty_out(vty
, " %s(%s)", peer
->hostname
,
7291 sockunion2str(&peer
->su
, buf1
,
7295 vty_out(vty
, " %s", peer
->conf_if
);
7298 sockunion2str(&peer
->su
, buf1
,
7304 void route_vty_out_detail(struct vty
*vty
, struct bgp
*bgp
, struct prefix
*p
,
7305 struct bgp_info
*binfo
, afi_t afi
, safi_t safi
,
7306 json_object
*json_paths
)
7308 char buf
[INET6_ADDRSTRLEN
];
7310 char buf2
[EVPN_ROUTE_STRLEN
];
7312 int sockunion_vty_out(struct vty
*, union sockunion
*);
7314 json_object
*json_bestpath
= NULL
;
7315 json_object
*json_cluster_list
= NULL
;
7316 json_object
*json_cluster_list_list
= NULL
;
7317 json_object
*json_ext_community
= NULL
;
7318 json_object
*json_last_update
= NULL
;
7319 json_object
*json_pmsi
= NULL
;
7320 json_object
*json_nexthop_global
= NULL
;
7321 json_object
*json_nexthop_ll
= NULL
;
7322 json_object
*json_nexthops
= NULL
;
7323 json_object
*json_path
= NULL
;
7324 json_object
*json_peer
= NULL
;
7325 json_object
*json_string
= NULL
;
7326 json_object
*json_adv_to
= NULL
;
7328 struct listnode
*node
, *nnode
;
7330 int addpath_capable
;
7332 unsigned int first_as
;
7333 bool nexthop_self
= CHECK_FLAG(binfo
->flags
, BGP_INFO_ANNC_NH_SELF
)
7338 json_path
= json_object_new_object();
7339 json_peer
= json_object_new_object();
7340 json_nexthop_global
= json_object_new_object();
7343 if (!json_paths
&& safi
== SAFI_EVPN
) {
7346 bgp_evpn_route2str((struct prefix_evpn
*)p
, buf2
, sizeof(buf2
));
7347 vty_out(vty
, " Route %s", buf2
);
7349 if (binfo
->extra
&& binfo
->extra
->num_labels
) {
7350 bgp_evpn_label2str(binfo
->extra
->label
,
7351 binfo
->extra
->num_labels
, tag_buf
,
7353 vty_out(vty
, " VNI %s", tag_buf
);
7356 if (binfo
->extra
&& binfo
->extra
->parent
) {
7357 struct bgp_info
*parent_ri
;
7358 struct bgp_node
*rn
, *prn
;
7360 parent_ri
= (struct bgp_info
*)binfo
->extra
->parent
;
7361 rn
= parent_ri
->net
;
7362 if (rn
&& rn
->prn
) {
7364 vty_out(vty
, " Imported from %s:%s\n",
7366 (struct prefix_rd
*)&prn
->p
,
7367 buf1
, sizeof(buf1
)),
7376 /* Line1 display AS-path, Aggregator */
7379 if (!attr
->aspath
->json
)
7380 aspath_str_update(attr
->aspath
, true);
7381 json_object_lock(attr
->aspath
->json
);
7382 json_object_object_add(json_path
, "aspath",
7383 attr
->aspath
->json
);
7385 if (attr
->aspath
->segments
)
7386 aspath_print_vty(vty
, " %s",
7389 vty_out(vty
, " Local");
7393 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_REMOVED
)) {
7395 json_object_boolean_true_add(json_path
,
7398 vty_out(vty
, ", (removed)");
7401 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_STALE
)) {
7403 json_object_boolean_true_add(json_path
,
7406 vty_out(vty
, ", (stale)");
7409 if (CHECK_FLAG(attr
->flag
,
7410 ATTR_FLAG_BIT(BGP_ATTR_AGGREGATOR
))) {
7412 json_object_int_add(json_path
, "aggregatorAs",
7413 attr
->aggregator_as
);
7414 json_object_string_add(
7415 json_path
, "aggregatorId",
7416 inet_ntoa(attr
->aggregator_addr
));
7418 vty_out(vty
, ", (aggregated by %u %s)",
7419 attr
->aggregator_as
,
7420 inet_ntoa(attr
->aggregator_addr
));
7424 if (CHECK_FLAG(binfo
->peer
->af_flags
[afi
][safi
],
7425 PEER_FLAG_REFLECTOR_CLIENT
)) {
7427 json_object_boolean_true_add(
7428 json_path
, "rxedFromRrClient");
7430 vty_out(vty
, ", (Received from a RR-client)");
7433 if (CHECK_FLAG(binfo
->peer
->af_flags
[afi
][safi
],
7434 PEER_FLAG_RSERVER_CLIENT
)) {
7436 json_object_boolean_true_add(
7437 json_path
, "rxedFromRsClient");
7439 vty_out(vty
, ", (Received from a RS-client)");
7442 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_HISTORY
)) {
7444 json_object_boolean_true_add(
7445 json_path
, "dampeningHistoryEntry");
7447 vty_out(vty
, ", (history entry)");
7448 } else if (CHECK_FLAG(binfo
->flags
, BGP_INFO_DAMPED
)) {
7450 json_object_boolean_true_add(
7451 json_path
, "dampeningSuppressed");
7453 vty_out(vty
, ", (suppressed due to dampening)");
7459 /* Line2 display Next-hop, Neighbor, Router-id */
7460 /* Display the nexthop */
7461 if ((p
->family
== AF_INET
|| p
->family
== AF_ETHERNET
7462 || p
->family
== AF_EVPN
)
7463 && (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
7464 || safi
== SAFI_EVPN
7465 || !BGP_ATTR_NEXTHOP_AFI_IP6(attr
))) {
7466 if (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
7467 || safi
== SAFI_EVPN
) {
7469 json_object_string_add(
7470 json_nexthop_global
, "ip",
7472 attr
->mp_nexthop_global_in
));
7476 attr
->mp_nexthop_global_in
));
7479 json_object_string_add(
7480 json_nexthop_global
, "ip",
7481 inet_ntoa(attr
->nexthop
));
7484 inet_ntoa(attr
->nexthop
));
7488 json_object_string_add(json_nexthop_global
,
7492 json_object_string_add(
7493 json_nexthop_global
, "ip",
7495 &attr
->mp_nexthop_global
, buf
,
7497 json_object_string_add(json_nexthop_global
,
7499 json_object_string_add(json_nexthop_global
,
7504 &attr
->mp_nexthop_global
, buf
,
7509 /* Display the IGP cost or 'inaccessible' */
7510 if (!CHECK_FLAG(binfo
->flags
, BGP_INFO_VALID
)) {
7512 json_object_boolean_false_add(
7513 json_nexthop_global
, "accessible");
7515 vty_out(vty
, " (inaccessible)");
7517 if (binfo
->extra
&& binfo
->extra
->igpmetric
) {
7519 json_object_int_add(
7520 json_nexthop_global
, "metric",
7521 binfo
->extra
->igpmetric
);
7523 vty_out(vty
, " (metric %u)",
7524 binfo
->extra
->igpmetric
);
7527 /* IGP cost is 0, display this only for json */
7530 json_object_int_add(json_nexthop_global
,
7535 json_object_boolean_true_add(
7536 json_nexthop_global
, "accessible");
7539 /* Display peer "from" output */
7540 /* This path was originated locally */
7541 if (binfo
->peer
== bgp
->peer_self
) {
7543 if (safi
== SAFI_EVPN
7544 || (p
->family
== AF_INET
7545 && !BGP_ATTR_NEXTHOP_AFI_IP6(attr
))) {
7547 json_object_string_add(
7548 json_peer
, "peerId", "0.0.0.0");
7550 vty_out(vty
, " from 0.0.0.0 ");
7553 json_object_string_add(json_peer
,
7556 vty_out(vty
, " from :: ");
7560 json_object_string_add(
7561 json_peer
, "routerId",
7562 inet_ntoa(bgp
->router_id
));
7564 vty_out(vty
, "(%s)", inet_ntoa(bgp
->router_id
));
7567 /* We RXed this path from one of our peers */
7571 json_object_string_add(
7572 json_peer
, "peerId",
7573 sockunion2str(&binfo
->peer
->su
, buf
,
7575 json_object_string_add(
7576 json_peer
, "routerId",
7578 &binfo
->peer
->remote_id
, buf1
,
7581 if (binfo
->peer
->hostname
)
7582 json_object_string_add(
7583 json_peer
, "hostname",
7584 binfo
->peer
->hostname
);
7586 if (binfo
->peer
->domainname
)
7587 json_object_string_add(
7588 json_peer
, "domainname",
7589 binfo
->peer
->domainname
);
7591 if (binfo
->peer
->conf_if
)
7592 json_object_string_add(
7593 json_peer
, "interface",
7594 binfo
->peer
->conf_if
);
7596 if (binfo
->peer
->conf_if
) {
7597 if (binfo
->peer
->hostname
7600 BGP_FLAG_SHOW_HOSTNAME
))
7601 vty_out(vty
, " from %s(%s)",
7602 binfo
->peer
->hostname
,
7603 binfo
->peer
->conf_if
);
7605 vty_out(vty
, " from %s",
7606 binfo
->peer
->conf_if
);
7608 if (binfo
->peer
->hostname
7611 BGP_FLAG_SHOW_HOSTNAME
))
7612 vty_out(vty
, " from %s(%s)",
7613 binfo
->peer
->hostname
,
7616 vty_out(vty
, " from %s",
7625 & ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID
))
7626 vty_out(vty
, " (%s)",
7627 inet_ntoa(attr
->originator_id
));
7629 vty_out(vty
, " (%s)",
7632 &binfo
->peer
->remote_id
,
7633 buf1
, sizeof(buf1
)));
7638 * Note when vrfid of nexthop is different from that of prefix
7640 if (binfo
->extra
&& binfo
->extra
->bgp_orig
) {
7641 vrf_id_t nexthop_vrfid
= binfo
->extra
->bgp_orig
->vrf_id
;
7646 if (binfo
->extra
->bgp_orig
->inst_type
==
7647 BGP_INSTANCE_TYPE_DEFAULT
)
7651 vn
= binfo
->extra
->bgp_orig
->name
;
7653 json_object_string_add(json_path
, "nhVrfName",
7656 if (nexthop_vrfid
== VRF_UNKNOWN
) {
7657 json_object_int_add(json_path
,
7660 json_object_int_add(json_path
,
7661 "nhVrfId", (int)nexthop_vrfid
);
7664 if (nexthop_vrfid
== VRF_UNKNOWN
)
7665 vty_out(vty
, " vrf ?");
7667 vty_out(vty
, " vrf %u", nexthop_vrfid
);
7673 json_object_boolean_true_add(json_path
,
7674 "announceNexthopSelf");
7676 vty_out(vty
, " announce-nh-self");
7683 /* display the link-local nexthop */
7684 if (attr
->mp_nexthop_len
== BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL
) {
7686 json_nexthop_ll
= json_object_new_object();
7687 json_object_string_add(
7688 json_nexthop_ll
, "ip",
7690 &attr
->mp_nexthop_local
, buf
,
7692 json_object_string_add(json_nexthop_ll
, "afi",
7694 json_object_string_add(json_nexthop_ll
, "scope",
7697 json_object_boolean_true_add(json_nexthop_ll
,
7700 if (!attr
->mp_nexthop_prefer_global
)
7701 json_object_boolean_true_add(
7702 json_nexthop_ll
, "used");
7704 json_object_boolean_true_add(
7705 json_nexthop_global
, "used");
7707 vty_out(vty
, " (%s) %s\n",
7709 &attr
->mp_nexthop_local
, buf
,
7711 attr
->mp_nexthop_prefer_global
7716 /* If we do not have a link-local nexthop then we must flag the
7720 json_object_boolean_true_add(
7721 json_nexthop_global
, "used");
7724 /* Line 3 display Origin, Med, Locpref, Weight, Tag, valid,
7725 * Int/Ext/Local, Atomic, best */
7727 json_object_string_add(
7728 json_path
, "origin",
7729 bgp_origin_long_str
[attr
->origin
]);
7731 vty_out(vty
, " Origin %s",
7732 bgp_origin_long_str
[attr
->origin
]);
7734 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
)) {
7736 json_object_int_add(json_path
, "med",
7739 vty_out(vty
, ", metric %u", attr
->med
);
7742 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
)) {
7744 json_object_int_add(json_path
, "localpref",
7747 vty_out(vty
, ", localpref %u",
7751 if (attr
->weight
!= 0) {
7753 json_object_int_add(json_path
, "weight",
7756 vty_out(vty
, ", weight %u", attr
->weight
);
7759 if (attr
->tag
!= 0) {
7761 json_object_int_add(json_path
, "tag",
7764 vty_out(vty
, ", tag %" ROUTE_TAG_PRI
,
7768 if (!CHECK_FLAG(binfo
->flags
, BGP_INFO_VALID
)) {
7770 json_object_boolean_false_add(json_path
,
7773 vty_out(vty
, ", invalid");
7774 } else if (!CHECK_FLAG(binfo
->flags
, BGP_INFO_HISTORY
)) {
7776 json_object_boolean_true_add(json_path
,
7779 vty_out(vty
, ", valid");
7782 if (binfo
->peer
!= bgp
->peer_self
) {
7783 if (binfo
->peer
->as
== binfo
->peer
->local_as
) {
7784 if (CHECK_FLAG(bgp
->config
,
7785 BGP_CONFIG_CONFEDERATION
)) {
7787 json_object_string_add(
7792 ", confed-internal");
7795 json_object_string_add(
7799 vty_out(vty
, ", internal");
7802 if (bgp_confederation_peers_check(
7803 bgp
, binfo
->peer
->as
)) {
7805 json_object_string_add(
7810 ", confed-external");
7813 json_object_string_add(
7817 vty_out(vty
, ", external");
7820 } else if (binfo
->sub_type
== BGP_ROUTE_AGGREGATE
) {
7822 json_object_boolean_true_add(json_path
,
7824 json_object_boolean_true_add(json_path
,
7827 vty_out(vty
, ", aggregated, local");
7829 } else if (binfo
->type
!= ZEBRA_ROUTE_BGP
) {
7831 json_object_boolean_true_add(json_path
,
7834 vty_out(vty
, ", sourced");
7837 json_object_boolean_true_add(json_path
,
7839 json_object_boolean_true_add(json_path
,
7842 vty_out(vty
, ", sourced, local");
7846 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_ATOMIC_AGGREGATE
)) {
7848 json_object_boolean_true_add(json_path
,
7851 vty_out(vty
, ", atomic-aggregate");
7854 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_MULTIPATH
)
7855 || (CHECK_FLAG(binfo
->flags
, BGP_INFO_SELECTED
)
7856 && bgp_info_mpath_count(binfo
))) {
7858 json_object_boolean_true_add(json_path
,
7861 vty_out(vty
, ", multipath");
7864 // Mark the bestpath(s)
7865 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_DMED_SELECTED
)) {
7866 first_as
= aspath_get_first_as(attr
->aspath
);
7871 json_object_new_object();
7872 json_object_int_add(json_bestpath
,
7873 "bestpathFromAs", first_as
);
7876 vty_out(vty
, ", bestpath-from-AS %u",
7880 ", bestpath-from-AS Local");
7884 if (CHECK_FLAG(binfo
->flags
, BGP_INFO_SELECTED
)) {
7888 json_object_new_object();
7889 json_object_boolean_true_add(json_bestpath
,
7892 vty_out(vty
, ", best");
7896 json_object_object_add(json_path
, "bestpath",
7902 /* Line 4 display Community */
7903 if (attr
->community
) {
7905 if (!attr
->community
->json
)
7906 community_str(attr
->community
, true);
7907 json_object_lock(attr
->community
->json
);
7908 json_object_object_add(json_path
, "community",
7909 attr
->community
->json
);
7911 vty_out(vty
, " Community: %s\n",
7912 attr
->community
->str
);
7916 /* Line 5 display Extended-community */
7917 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_EXT_COMMUNITIES
)) {
7919 json_ext_community
= json_object_new_object();
7920 json_object_string_add(json_ext_community
,
7922 attr
->ecommunity
->str
);
7923 json_object_object_add(json_path
,
7924 "extendedCommunity",
7925 json_ext_community
);
7927 vty_out(vty
, " Extended Community: %s\n",
7928 attr
->ecommunity
->str
);
7932 /* Line 6 display Large community */
7933 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_LARGE_COMMUNITIES
)) {
7935 if (!attr
->lcommunity
->json
)
7936 lcommunity_str(attr
->lcommunity
, true);
7937 json_object_lock(attr
->lcommunity
->json
);
7938 json_object_object_add(json_path
,
7940 attr
->lcommunity
->json
);
7942 vty_out(vty
, " Large Community: %s\n",
7943 attr
->lcommunity
->str
);
7947 /* Line 7 display Originator, Cluster-id */
7948 if ((attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID
))
7949 || (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_CLUSTER_LIST
))) {
7951 & ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID
)) {
7953 json_object_string_add(
7954 json_path
, "originatorId",
7955 inet_ntoa(attr
->originator_id
));
7957 vty_out(vty
, " Originator: %s",
7958 inet_ntoa(attr
->originator_id
));
7961 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_CLUSTER_LIST
)) {
7966 json_object_new_object();
7967 json_cluster_list_list
=
7968 json_object_new_array();
7971 i
< attr
->cluster
->length
/ 4;
7973 json_string
= json_object_new_string(
7977 json_object_array_add(
7978 json_cluster_list_list
,
7982 /* struct cluster_list does not have
7984 * aspath and community do. Add this
7987 json_object_string_add(json_cluster_list,
7988 "string", attr->cluster->str);
7990 json_object_object_add(
7991 json_cluster_list
, "list",
7992 json_cluster_list_list
);
7993 json_object_object_add(
7994 json_path
, "clusterList",
7997 vty_out(vty
, ", Cluster list: ");
8000 i
< attr
->cluster
->length
/ 4;
8014 if (binfo
->extra
&& binfo
->extra
->damp_info
)
8015 bgp_damp_info_vty(vty
, binfo
, json_path
);
8018 if (binfo
->extra
&& bgp_is_valid_label(&binfo
->extra
->label
[0])
8019 && safi
!= SAFI_EVPN
) {
8020 mpls_label_t label
=
8021 label_pton(&binfo
->extra
->label
[0]);
8023 json_object_int_add(json_path
, "remoteLabel",
8026 vty_out(vty
, " Remote label: %d\n", label
);
8030 if (attr
->label_index
!= BGP_INVALID_LABEL_INDEX
) {
8032 json_object_int_add(json_path
, "labelIndex",
8035 vty_out(vty
, " Label Index: %d\n",
8039 /* Line 8 display Addpath IDs */
8040 if (binfo
->addpath_rx_id
|| binfo
->addpath_tx_id
) {
8042 json_object_int_add(json_path
, "addpathRxId",
8043 binfo
->addpath_rx_id
);
8044 json_object_int_add(json_path
, "addpathTxId",
8045 binfo
->addpath_tx_id
);
8047 vty_out(vty
, " AddPath ID: RX %u, TX %u\n",
8048 binfo
->addpath_rx_id
,
8049 binfo
->addpath_tx_id
);
8053 /* If we used addpath to TX a non-bestpath we need to display
8054 * "Advertised to" on a path-by-path basis */
8055 if (bgp
->addpath_tx_used
[afi
][safi
]) {
8058 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
8060 bgp_addpath_encode_tx(peer
, afi
, safi
);
8061 has_adj
= bgp_adj_out_lookup(
8062 peer
, binfo
->net
, binfo
->addpath_tx_id
);
8064 if ((addpath_capable
&& has_adj
)
8065 || (!addpath_capable
&& has_adj
8066 && CHECK_FLAG(binfo
->flags
,
8067 BGP_INFO_SELECTED
))) {
8068 if (json_path
&& !json_adv_to
)
8070 json_object_new_object();
8072 route_vty_out_advertised_to(
8081 json_object_object_add(json_path
,
8092 /* Line 9 display Uptime */
8093 tbuf
= time(NULL
) - (bgp_clock() - binfo
->uptime
);
8095 json_last_update
= json_object_new_object();
8096 json_object_int_add(json_last_update
, "epoch", tbuf
);
8097 json_object_string_add(json_last_update
, "string",
8099 json_object_object_add(json_path
, "lastUpdate",
8102 vty_out(vty
, " Last update: %s", ctime(&tbuf
));
8104 /* Line 10 display PMSI tunnel attribute, if present */
8105 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_PMSI_TUNNEL
)) {
8106 const char *str
= lookup_msg(bgp_pmsi_tnltype_str
,
8107 attr
->pmsi_tnl_type
,
8108 PMSI_TNLTYPE_STR_DEFAULT
);
8111 json_pmsi
= json_object_new_object();
8112 json_object_string_add(json_pmsi
,
8114 json_object_object_add(json_path
, "pmsi",
8117 vty_out(vty
, " PMSI Tunnel Type: %s\n",
8123 /* We've constructed the json object for this path, add it to the json
8127 if (json_nexthop_global
|| json_nexthop_ll
) {
8128 json_nexthops
= json_object_new_array();
8130 if (json_nexthop_global
)
8131 json_object_array_add(json_nexthops
,
8132 json_nexthop_global
);
8134 if (json_nexthop_ll
)
8135 json_object_array_add(json_nexthops
,
8138 json_object_object_add(json_path
, "nexthops",
8142 json_object_object_add(json_path
, "peer", json_peer
);
8143 json_object_array_add(json_paths
, json_path
);
8148 #define BGP_SHOW_HEADER_CSV "Flags, Network, Next Hop, Metric, LocPrf, Weight, Path"
8149 #define BGP_SHOW_DAMP_HEADER " Network From Reuse Path\n"
8150 #define BGP_SHOW_FLAP_HEADER " Network From Flaps Duration Reuse Path\n"
8152 static int bgp_show_prefix_list(struct vty
*vty
, struct bgp
*bgp
,
8153 const char *prefix_list_str
, afi_t afi
,
8154 safi_t safi
, enum bgp_show_type type
);
8155 static int bgp_show_filter_list(struct vty
*vty
, struct bgp
*bgp
,
8156 const char *filter
, afi_t afi
, safi_t safi
,
8157 enum bgp_show_type type
);
8158 static int bgp_show_route_map(struct vty
*vty
, struct bgp
*bgp
,
8159 const char *rmap_str
, afi_t afi
, safi_t safi
,
8160 enum bgp_show_type type
);
8161 static int bgp_show_community_list(struct vty
*vty
, struct bgp
*bgp
,
8162 const char *com
, int exact
, afi_t afi
,
8164 static int bgp_show_prefix_longer(struct vty
*vty
, struct bgp
*bgp
,
8165 const char *prefix
, afi_t afi
, safi_t safi
,
8166 enum bgp_show_type type
);
8167 static int bgp_show_regexp(struct vty
*vty
, struct bgp
*bgp
, const char *regstr
,
8168 afi_t afi
, safi_t safi
, enum bgp_show_type type
);
8169 static int bgp_show_community(struct vty
*vty
, struct bgp
*bgp
,
8170 const char *comstr
, int exact
, afi_t afi
,
8171 safi_t safi
, bool use_json
);
8174 static int bgp_show_table(struct vty
*vty
, struct bgp
*bgp
, safi_t safi
,
8175 struct bgp_table
*table
, enum bgp_show_type type
,
8176 void *output_arg
, bool use_json
, char *rd
,
8177 int is_last
, unsigned long *output_cum
,
8178 unsigned long *total_cum
,
8179 unsigned long *json_header_depth
)
8181 struct bgp_info
*ri
;
8182 struct bgp_node
*rn
;
8185 unsigned long output_count
= 0;
8186 unsigned long total_count
= 0;
8190 json_object
*json_paths
= NULL
;
8193 if (output_cum
&& *output_cum
!= 0)
8196 if (use_json
&& !*json_header_depth
) {
8198 "{\n \"vrfId\": %d,\n \"vrfName\": \"%s\",\n \"tableVersion\": %" PRId64
8199 ",\n \"routerId\": \"%s\",\n \"routes\": { ",
8200 bgp
->vrf_id
== VRF_UNKNOWN
? -1 : (int)bgp
->vrf_id
,
8201 bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
? "Default"
8203 table
->version
, inet_ntoa(bgp
->router_id
));
8204 *json_header_depth
= 2;
8206 vty_out(vty
, " \"routeDistinguishers\" : {");
8207 ++*json_header_depth
;
8211 if (use_json
&& rd
) {
8212 vty_out(vty
, " \"%s\" : { ", rd
);
8215 /* Start processing of routes. */
8216 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
)) {
8217 if (rn
->info
== NULL
)
8222 json_paths
= json_object_new_array();
8226 for (ri
= rn
->info
; ri
; ri
= ri
->next
) {
8228 if (type
== bgp_show_type_flap_statistics
8229 || type
== bgp_show_type_flap_neighbor
8230 || type
== bgp_show_type_dampend_paths
8231 || type
== bgp_show_type_damp_neighbor
) {
8232 if (!(ri
->extra
&& ri
->extra
->damp_info
))
8235 if (type
== bgp_show_type_regexp
) {
8236 regex_t
*regex
= output_arg
;
8238 if (bgp_regexec(regex
, ri
->attr
->aspath
)
8242 if (type
== bgp_show_type_prefix_list
) {
8243 struct prefix_list
*plist
= output_arg
;
8245 if (prefix_list_apply(plist
, &rn
->p
)
8249 if (type
== bgp_show_type_filter_list
) {
8250 struct as_list
*as_list
= output_arg
;
8252 if (as_list_apply(as_list
, ri
->attr
->aspath
)
8253 != AS_FILTER_PERMIT
)
8256 if (type
== bgp_show_type_route_map
) {
8257 struct route_map
*rmap
= output_arg
;
8258 struct bgp_info binfo
;
8259 struct attr dummy_attr
;
8262 bgp_attr_dup(&dummy_attr
, ri
->attr
);
8264 binfo
.peer
= ri
->peer
;
8265 binfo
.attr
= &dummy_attr
;
8267 ret
= route_map_apply(rmap
, &rn
->p
, RMAP_BGP
,
8269 if (ret
== RMAP_DENYMATCH
)
8272 if (type
== bgp_show_type_neighbor
8273 || type
== bgp_show_type_flap_neighbor
8274 || type
== bgp_show_type_damp_neighbor
) {
8275 union sockunion
*su
= output_arg
;
8277 if (ri
->peer
== NULL
8278 || ri
->peer
->su_remote
== NULL
8279 || !sockunion_same(ri
->peer
->su_remote
, su
))
8282 if (type
== bgp_show_type_cidr_only
) {
8283 uint32_t destination
;
8285 destination
= ntohl(rn
->p
.u
.prefix4
.s_addr
);
8286 if (IN_CLASSC(destination
)
8287 && rn
->p
.prefixlen
== 24)
8289 if (IN_CLASSB(destination
)
8290 && rn
->p
.prefixlen
== 16)
8292 if (IN_CLASSA(destination
)
8293 && rn
->p
.prefixlen
== 8)
8296 if (type
== bgp_show_type_prefix_longer
) {
8298 if (!prefix_match(p
, &rn
->p
))
8301 if (type
== bgp_show_type_community_all
) {
8302 if (!ri
->attr
->community
)
8305 if (type
== bgp_show_type_community
) {
8306 struct community
*com
= output_arg
;
8308 if (!ri
->attr
->community
8309 || !community_match(ri
->attr
->community
,
8313 if (type
== bgp_show_type_community_exact
) {
8314 struct community
*com
= output_arg
;
8316 if (!ri
->attr
->community
8317 || !community_cmp(ri
->attr
->community
, com
))
8320 if (type
== bgp_show_type_community_list
) {
8321 struct community_list
*list
= output_arg
;
8323 if (!community_list_match(ri
->attr
->community
,
8327 if (type
== bgp_show_type_community_list_exact
) {
8328 struct community_list
*list
= output_arg
;
8330 if (!community_list_exact_match(
8331 ri
->attr
->community
, list
))
8334 if (type
== bgp_show_type_lcommunity
) {
8335 struct lcommunity
*lcom
= output_arg
;
8337 if (!ri
->attr
->lcommunity
8338 || !lcommunity_match(ri
->attr
->lcommunity
,
8342 if (type
== bgp_show_type_lcommunity_list
) {
8343 struct community_list
*list
= output_arg
;
8345 if (!lcommunity_list_match(ri
->attr
->lcommunity
,
8349 if (type
== bgp_show_type_lcommunity_all
) {
8350 if (!ri
->attr
->lcommunity
)
8353 if (type
== bgp_show_type_dampend_paths
8354 || type
== bgp_show_type_damp_neighbor
) {
8355 if (!CHECK_FLAG(ri
->flags
, BGP_INFO_DAMPED
)
8356 || CHECK_FLAG(ri
->flags
, BGP_INFO_HISTORY
))
8360 if (!use_json
&& header
) {
8361 vty_out(vty
, "BGP table version is %" PRIu64
8362 ", local router ID is %s, vrf id ",
8364 inet_ntoa(bgp
->router_id
));
8365 if (bgp
->vrf_id
== VRF_UNKNOWN
)
8366 vty_out(vty
, "%s", VRFID_NONE_STR
);
8368 vty_out(vty
, "%u", bgp
->vrf_id
);
8370 vty_out(vty
, BGP_SHOW_SCODE_HEADER
);
8371 vty_out(vty
, BGP_SHOW_NCODE_HEADER
);
8372 vty_out(vty
, BGP_SHOW_OCODE_HEADER
);
8373 if (type
== bgp_show_type_dampend_paths
8374 || type
== bgp_show_type_damp_neighbor
)
8375 vty_out(vty
, BGP_SHOW_DAMP_HEADER
);
8376 else if (type
== bgp_show_type_flap_statistics
8377 || type
== bgp_show_type_flap_neighbor
)
8378 vty_out(vty
, BGP_SHOW_FLAP_HEADER
);
8380 vty_out(vty
, BGP_SHOW_HEADER
);
8383 if (rd
!= NULL
&& !display
&& !output_count
) {
8386 "Route Distinguisher: %s\n",
8389 if (type
== bgp_show_type_dampend_paths
8390 || type
== bgp_show_type_damp_neighbor
)
8391 damp_route_vty_out(vty
, &rn
->p
, ri
, display
,
8392 safi
, use_json
, json_paths
);
8393 else if (type
== bgp_show_type_flap_statistics
8394 || type
== bgp_show_type_flap_neighbor
)
8395 flap_route_vty_out(vty
, &rn
->p
, ri
, display
,
8396 safi
, use_json
, json_paths
);
8398 route_vty_out(vty
, &rn
->p
, ri
, display
, safi
,
8409 sprintf(buf2
, "%s/%d",
8410 inet_ntop(p
->family
, &p
->u
.prefix
, buf
, BUFSIZ
),
8413 vty_out(vty
, "\"%s\": ", buf2
);
8415 vty_out(vty
, ",\"%s\": ", buf2
);
8418 json_object_to_json_string(json_paths
));
8419 json_object_free(json_paths
);
8426 output_count
+= *output_cum
;
8427 *output_cum
= output_count
;
8430 total_count
+= *total_cum
;
8431 *total_cum
= total_count
;
8435 vty_out(vty
, " }%s ", (is_last
? "" : ","));
8439 for (i
= 0; i
< *json_header_depth
; ++i
)
8440 vty_out(vty
, " } ");
8444 /* No route is displayed */
8445 if (output_count
== 0) {
8446 if (type
== bgp_show_type_normal
)
8448 "No BGP prefixes displayed, %ld exist\n",
8452 "\nDisplayed %ld routes and %ld total paths\n",
8453 output_count
, total_count
);
8460 int bgp_show_table_rd(struct vty
*vty
, struct bgp
*bgp
, safi_t safi
,
8461 struct bgp_table
*table
, struct prefix_rd
*prd_match
,
8462 enum bgp_show_type type
, void *output_arg
, bool use_json
)
8464 struct bgp_node
*rn
, *next
;
8465 unsigned long output_cum
= 0;
8466 unsigned long total_cum
= 0;
8467 unsigned long json_header_depth
= 0;
8470 show_msg
= (!use_json
&& type
== bgp_show_type_normal
);
8472 for (rn
= bgp_table_top(table
); rn
; rn
= next
) {
8473 next
= bgp_route_next(rn
);
8474 if (prd_match
&& memcmp(rn
->p
.u
.val
, prd_match
->val
, 8) != 0)
8476 if (rn
->info
!= NULL
) {
8477 struct prefix_rd prd
;
8478 char rd
[RD_ADDRSTRLEN
];
8480 memcpy(&prd
, &(rn
->p
), sizeof(struct prefix_rd
));
8481 prefix_rd2str(&prd
, rd
, sizeof(rd
));
8482 bgp_show_table(vty
, bgp
, safi
, rn
->info
, type
,
8483 output_arg
, use_json
, rd
, next
== NULL
,
8484 &output_cum
, &total_cum
,
8485 &json_header_depth
);
8491 if (output_cum
== 0)
8492 vty_out(vty
, "No BGP prefixes displayed, %ld exist\n",
8496 "\nDisplayed %ld routes and %ld total paths\n",
8497 output_cum
, total_cum
);
8501 static int bgp_show(struct vty
*vty
, struct bgp
*bgp
, afi_t afi
, safi_t safi
,
8502 enum bgp_show_type type
, void *output_arg
, bool use_json
)
8504 struct bgp_table
*table
;
8505 unsigned long json_header_depth
= 0;
8508 bgp
= bgp_get_default();
8513 vty_out(vty
, "No BGP process is configured\n");
8515 vty_out(vty
, "{}\n");
8519 table
= bgp
->rib
[afi
][safi
];
8520 /* use MPLS and ENCAP specific shows until they are merged */
8521 if (safi
== SAFI_MPLS_VPN
) {
8522 return bgp_show_table_rd(vty
, bgp
, safi
, table
, NULL
, type
,
8523 output_arg
, use_json
);
8526 if (safi
== SAFI_FLOWSPEC
&& type
== bgp_show_type_detail
) {
8527 return bgp_show_table_flowspec(vty
, bgp
, afi
, table
, type
,
8528 output_arg
, use_json
,
8531 /* labeled-unicast routes live in the unicast table */
8532 else if (safi
== SAFI_LABELED_UNICAST
)
8533 safi
= SAFI_UNICAST
;
8535 return bgp_show_table(vty
, bgp
, safi
, table
, type
, output_arg
, use_json
,
8536 NULL
, 1, NULL
, NULL
, &json_header_depth
);
8539 static void bgp_show_all_instances_routes_vty(struct vty
*vty
, afi_t afi
,
8540 safi_t safi
, bool use_json
)
8542 struct listnode
*node
, *nnode
;
8545 bool route_output
= false;
8548 vty_out(vty
, "{\n");
8550 for (ALL_LIST_ELEMENTS(bm
->bgp
, node
, nnode
, bgp
)) {
8551 route_output
= true;
8554 vty_out(vty
, ",\n");
8558 vty_out(vty
, "\"%s\":",
8559 (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)
8563 vty_out(vty
, "\nInstance %s:\n",
8564 (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)
8568 bgp_show(vty
, bgp
, afi
, safi
, bgp_show_type_normal
, NULL
,
8573 vty_out(vty
, "}\n");
8574 else if (!route_output
)
8575 vty_out(vty
, "%% BGP instance not found\n");
8578 /* Header of detailed BGP route information */
8579 void route_vty_out_detail_header(struct vty
*vty
, struct bgp
*bgp
,
8580 struct bgp_node
*rn
, struct prefix_rd
*prd
,
8581 afi_t afi
, safi_t safi
, json_object
*json
)
8583 struct bgp_info
*ri
;
8586 struct listnode
*node
, *nnode
;
8587 char buf1
[RD_ADDRSTRLEN
];
8588 char buf2
[INET6_ADDRSTRLEN
];
8589 char buf3
[EVPN_ROUTE_STRLEN
];
8590 char prefix_str
[BUFSIZ
];
8595 int route_filter_translated_v4
= 0;
8596 int route_filter_v4
= 0;
8597 int route_filter_translated_v6
= 0;
8598 int route_filter_v6
= 0;
8601 int accept_own_nexthop
= 0;
8604 int no_advertise
= 0;
8608 int has_valid_label
= 0;
8609 mpls_label_t label
= 0;
8610 json_object
*json_adv_to
= NULL
;
8613 has_valid_label
= bgp_is_valid_label(&rn
->local_label
);
8615 if (has_valid_label
)
8616 label
= label_pton(&rn
->local_label
);
8619 if (has_valid_label
)
8620 json_object_int_add(json
, "localLabel", label
);
8622 json_object_string_add(
8624 prefix2str(p
, prefix_str
, sizeof(prefix_str
)));
8626 if (safi
== SAFI_EVPN
)
8627 vty_out(vty
, "BGP routing table entry for %s%s%s\n",
8628 prd
? prefix_rd2str(prd
, buf1
, sizeof(buf1
))
8631 bgp_evpn_route2str((struct prefix_evpn
*)p
,
8632 buf3
, sizeof(buf3
)));
8634 vty_out(vty
, "BGP routing table entry for %s%s%s/%d\n",
8635 ((safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
)
8636 ? prefix_rd2str(prd
, buf1
,
8639 safi
== SAFI_MPLS_VPN
? ":" : "",
8640 inet_ntop(p
->family
, &p
->u
.prefix
, buf2
,
8644 if (has_valid_label
)
8645 vty_out(vty
, "Local label: %d\n", label
);
8646 if (bgp_labeled_safi(safi
) && safi
!= SAFI_EVPN
)
8647 vty_out(vty
, "not allocated\n");
8650 for (ri
= rn
->info
; ri
; ri
= ri
->next
) {
8652 if (CHECK_FLAG(ri
->flags
, BGP_INFO_SELECTED
)) {
8654 if (ri
->extra
&& ri
->extra
->suppress
)
8656 if (ri
->attr
->community
!= NULL
) {
8657 if (community_include(ri
->attr
->community
,
8658 COMMUNITY_NO_ADVERTISE
))
8660 if (community_include(ri
->attr
->community
,
8661 COMMUNITY_NO_EXPORT
))
8663 if (community_include(ri
->attr
->community
,
8664 COMMUNITY_LOCAL_AS
))
8671 vty_out(vty
, "Paths: (%d available", count
);
8673 vty_out(vty
, ", best #%d", best
);
8674 if (safi
== SAFI_UNICAST
)
8675 vty_out(vty
, ", table %s",
8677 == BGP_INSTANCE_TYPE_DEFAULT
)
8678 ? "Default-IP-Routing-Table"
8681 vty_out(vty
, ", no best path");
8685 ", accept own local route exported and imported in different VRF");
8686 else if (route_filter_translated_v4
)
8688 ", mark translated RTs for VPNv4 route filtering");
8689 else if (route_filter_v4
)
8691 ", attach RT as-is for VPNv4 route filtering");
8692 else if (route_filter_translated_v6
)
8694 ", mark translated RTs for VPNv6 route filtering");
8695 else if (route_filter_v6
)
8697 ", attach RT as-is for VPNv6 route filtering");
8698 else if (llgr_stale
)
8700 ", mark routes to be retained for a longer time. Requeres support for Long-lived BGP Graceful Restart");
8703 ", mark routes to not be treated according to Long-lived BGP Graceful Restart operations");
8704 else if (accept_own_nexthop
)
8706 ", accept local nexthop");
8708 vty_out(vty
, ", inform peer to blackhole prefix");
8710 vty_out(vty
, ", not advertised to EBGP peer");
8711 else if (no_advertise
)
8712 vty_out(vty
, ", not advertised to any peer");
8714 vty_out(vty
, ", not advertised outside local AS");
8717 ", inform EBGP peer not to advertise to their EBGP peers");
8721 ", Advertisements suppressed by an aggregate.");
8722 vty_out(vty
, ")\n");
8725 /* If we are not using addpath then we can display Advertised to and
8727 * show what peers we advertised the bestpath to. If we are using
8729 * though then we must display Advertised to on a path-by-path basis. */
8730 if (!bgp
->addpath_tx_used
[afi
][safi
]) {
8731 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
8732 if (bgp_adj_out_lookup(peer
, rn
, 0)) {
8733 if (json
&& !json_adv_to
)
8734 json_adv_to
= json_object_new_object();
8736 route_vty_out_advertised_to(
8738 " Advertised to non peer-group peers:\n ",
8745 json_object_object_add(json
, "advertisedTo",
8750 vty_out(vty
, " Not advertised to any peer");
8756 /* Display specified route of BGP table. */
8757 static int bgp_show_route_in_table(struct vty
*vty
, struct bgp
*bgp
,
8758 struct bgp_table
*rib
, const char *ip_str
,
8759 afi_t afi
, safi_t safi
,
8760 struct prefix_rd
*prd
, int prefix_check
,
8761 enum bgp_path_type pathtype
, bool use_json
)
8766 struct prefix match
;
8767 struct bgp_node
*rn
;
8768 struct bgp_node
*rm
;
8769 struct bgp_info
*ri
;
8770 struct bgp_table
*table
;
8771 json_object
*json
= NULL
;
8772 json_object
*json_paths
= NULL
;
8774 /* Check IP address argument. */
8775 ret
= str2prefix(ip_str
, &match
);
8777 vty_out(vty
, "address is malformed\n");
8781 match
.family
= afi2family(afi
);
8784 json
= json_object_new_object();
8785 json_paths
= json_object_new_array();
8788 if (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
|| safi
== SAFI_EVPN
) {
8789 for (rn
= bgp_table_top(rib
); rn
; rn
= bgp_route_next(rn
)) {
8790 if (prd
&& memcmp(rn
->p
.u
.val
, prd
->val
, 8) != 0)
8793 if ((table
= rn
->info
) == NULL
)
8798 if ((rm
= bgp_node_match(table
, &match
)) == NULL
)
8802 && rm
->p
.prefixlen
!= match
.prefixlen
) {
8803 bgp_unlock_node(rm
);
8807 for (ri
= rm
->info
; ri
; ri
= ri
->next
) {
8809 route_vty_out_detail_header(
8811 (struct prefix_rd
*)&rn
->p
,
8812 AFI_IP
, safi
, json
);
8817 if (pathtype
== BGP_PATH_ALL
8818 || (pathtype
== BGP_PATH_BESTPATH
8819 && CHECK_FLAG(ri
->flags
,
8821 || (pathtype
== BGP_PATH_MULTIPATH
8822 && (CHECK_FLAG(ri
->flags
,
8824 || CHECK_FLAG(ri
->flags
,
8825 BGP_INFO_SELECTED
))))
8826 route_vty_out_detail(vty
, bgp
, &rm
->p
,
8831 bgp_unlock_node(rm
);
8833 } else if (safi
== SAFI_FLOWSPEC
) {
8834 display
= bgp_flowspec_display_match_per_ip(afi
, rib
,
8835 &match
, prefix_check
,
8842 if ((rn
= bgp_node_match(rib
, &match
)) != NULL
) {
8844 || rn
->p
.prefixlen
== match
.prefixlen
) {
8845 for (ri
= rn
->info
; ri
; ri
= ri
->next
) {
8847 route_vty_out_detail_header(
8848 vty
, bgp
, rn
, NULL
, afi
,
8854 if (pathtype
== BGP_PATH_ALL
8855 || (pathtype
== BGP_PATH_BESTPATH
8859 || (pathtype
== BGP_PATH_MULTIPATH
8865 BGP_INFO_SELECTED
))))
8866 route_vty_out_detail(
8867 vty
, bgp
, &rn
->p
, ri
,
8868 afi
, safi
, json_paths
);
8872 bgp_unlock_node(rn
);
8878 json_object_object_add(json
, "paths", json_paths
);
8880 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
8881 json
, JSON_C_TO_STRING_PRETTY
));
8882 json_object_free(json
);
8885 vty_out(vty
, "%% Network not in table\n");
8893 /* Display specified route of Main RIB */
8894 static int bgp_show_route(struct vty
*vty
, struct bgp
*bgp
, const char *ip_str
,
8895 afi_t afi
, safi_t safi
, struct prefix_rd
*prd
,
8896 int prefix_check
, enum bgp_path_type pathtype
,
8900 bgp
= bgp_get_default();
8903 vty_out(vty
, "No BGP process is configured\n");
8905 vty_out(vty
, "{}\n");
8910 /* labeled-unicast routes live in the unicast table */
8911 if (safi
== SAFI_LABELED_UNICAST
)
8912 safi
= SAFI_UNICAST
;
8914 return bgp_show_route_in_table(vty
, bgp
, bgp
->rib
[afi
][safi
], ip_str
,
8915 afi
, safi
, prd
, prefix_check
, pathtype
,
8919 static int bgp_show_lcommunity(struct vty
*vty
, struct bgp
*bgp
, int argc
,
8920 struct cmd_token
**argv
, afi_t afi
, safi_t safi
,
8923 struct lcommunity
*lcom
;
8929 b
= buffer_new(1024);
8930 for (i
= 0; i
< argc
; i
++) {
8932 buffer_putc(b
, ' ');
8934 if (strmatch(argv
[i
]->text
, "AA:BB:CC")) {
8936 buffer_putstr(b
, argv
[i
]->arg
);
8940 buffer_putc(b
, '\0');
8942 str
= buffer_getstr(b
);
8945 lcom
= lcommunity_str2com(str
);
8946 XFREE(MTYPE_TMP
, str
);
8948 vty_out(vty
, "%% Large-community malformed\n");
8952 return bgp_show(vty
, bgp
, afi
, safi
, bgp_show_type_lcommunity
, lcom
,
8956 static int bgp_show_lcommunity_list(struct vty
*vty
, struct bgp
*bgp
,
8957 const char *lcom
, afi_t afi
, safi_t safi
,
8960 struct community_list
*list
;
8962 list
= community_list_lookup(bgp_clist
, lcom
,
8963 LARGE_COMMUNITY_LIST_MASTER
);
8965 vty_out(vty
, "%% %s is not a valid large-community-list name\n",
8970 return bgp_show(vty
, bgp
, afi
, safi
, bgp_show_type_lcommunity_list
,
8974 DEFUN (show_ip_bgp_large_community_list
,
8975 show_ip_bgp_large_community_list_cmd
,
8976 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]] large-community-list <(1-500)|WORD> [json]",
8980 BGP_INSTANCE_HELP_STR
8982 BGP_SAFI_WITH_LABEL_HELP_STR
8983 "Display routes matching the large-community-list\n"
8984 "large-community-list number\n"
8985 "large-community-list name\n"
8989 afi_t afi
= AFI_IP6
;
8990 safi_t safi
= SAFI_UNICAST
;
8993 if (argv_find(argv
, argc
, "ip", &idx
))
8995 if (argv_find(argv
, argc
, "view", &idx
)
8996 || argv_find(argv
, argc
, "vrf", &idx
))
8997 vrf
= argv
[++idx
]->arg
;
8998 if (argv_find(argv
, argc
, "ipv4", &idx
)
8999 || argv_find(argv
, argc
, "ipv6", &idx
)) {
9000 afi
= strmatch(argv
[idx
]->text
, "ipv6") ? AFI_IP6
: AFI_IP
;
9001 if (argv_find(argv
, argc
, "unicast", &idx
)
9002 || argv_find(argv
, argc
, "multicast", &idx
))
9003 safi
= bgp_vty_safi_from_str(argv
[idx
]->text
);
9006 bool uj
= use_json(argc
, argv
);
9008 struct bgp
*bgp
= bgp_lookup_by_name(vrf
);
9010 vty_out(vty
, "Can't find BGP instance %s\n", vrf
);
9014 argv_find(argv
, argc
, "large-community-list", &idx
);
9015 return bgp_show_lcommunity_list(vty
, bgp
, argv
[idx
+ 1]->arg
, afi
, safi
,
9018 DEFUN (show_ip_bgp_large_community
,
9019 show_ip_bgp_large_community_cmd
,
9020 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]] large-community [AA:BB:CC] [json]",
9024 BGP_INSTANCE_HELP_STR
9026 BGP_SAFI_WITH_LABEL_HELP_STR
9027 "Display routes matching the large-communities\n"
9028 "List of large-community numbers\n"
9032 afi_t afi
= AFI_IP6
;
9033 safi_t safi
= SAFI_UNICAST
;
9036 if (argv_find(argv
, argc
, "ip", &idx
))
9038 if (argv_find(argv
, argc
, "view", &idx
)
9039 || argv_find(argv
, argc
, "vrf", &idx
))
9040 vrf
= argv
[++idx
]->arg
;
9041 if (argv_find(argv
, argc
, "ipv4", &idx
)
9042 || argv_find(argv
, argc
, "ipv6", &idx
)) {
9043 afi
= strmatch(argv
[idx
]->text
, "ipv6") ? AFI_IP6
: AFI_IP
;
9044 if (argv_find(argv
, argc
, "unicast", &idx
)
9045 || argv_find(argv
, argc
, "multicast", &idx
))
9046 safi
= bgp_vty_safi_from_str(argv
[idx
]->text
);
9049 bool uj
= use_json(argc
, argv
);
9051 struct bgp
*bgp
= bgp_lookup_by_name(vrf
);
9053 vty_out(vty
, "Can't find BGP instance %s\n", vrf
);
9057 if (argv_find(argv
, argc
, "AA:BB:CC", &idx
))
9058 return bgp_show_lcommunity(vty
, bgp
, argc
, argv
, afi
, safi
, uj
);
9060 return bgp_show(vty
, bgp
, afi
, safi
,
9061 bgp_show_type_lcommunity_all
, NULL
, uj
);
9064 static int bgp_table_stats(struct vty
*vty
, struct bgp
*bgp
, afi_t afi
,
9068 /* BGP route print out function without JSON */
9071 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]]\
9072 <dampening <parameters>\
9077 |community <AA:NN|local-AS|no-advertise|no-export|graceful-shutdown\
9078 no-peer|blackhole|llgr-stale|no-llgr|accept-own|accept-own-nexthop\
9079 route-filter-v6|route-filter-v4|route-filter-translated-v6|\
9080 route-filter-translated-v4> [exact-match]\
9081 |community-list <(1-500)|WORD> [exact-match]\
9082 |A.B.C.D/M longer-prefixes\
9083 |X:X::X:X/M longer-prefixes\
9088 BGP_INSTANCE_HELP_STR
9090 BGP_SAFI_WITH_LABEL_HELP_STR
9091 "Display detailed information about dampening\n"
9092 "Display detail of configured dampening parameters\n"
9093 "Display routes matching the route-map\n"
9094 "A route-map to match on\n"
9095 "Display routes conforming to the prefix-list\n"
9096 "Prefix-list name\n"
9097 "Display routes conforming to the filter-list\n"
9098 "Regular expression access list name\n"
9099 "BGP RIB advertisement statistics\n"
9100 "Display routes matching the communities\n"
9102 "Do not send outside local AS (well-known community)\n"
9103 "Do not advertise to any peer (well-known community)\n"
9104 "Do not export to next AS (well-known community)\n"
9105 "Graceful shutdown (well-known community)\n"
9106 "Do not export to any peer (well-known community)\n"
9107 "Inform EBGP peers to blackhole traffic to prefix (well-known community)\n"
9108 "Staled Long-lived Graceful Restart VPN route (well-known community)\n"
9109 "Removed because Long-lived Graceful Restart was not enabled for VPN route (well-known community)\n"
9110 "Should accept local VPN route if exported and imported into different VRF (well-known community)\n"
9111 "Should accept VPN route with local nexthop (well-known community)\n"
9112 "RT VPNv6 route filtering (well-known community)\n"
9113 "RT VPNv4 route filtering (well-known community)\n"
9114 "RT translated VPNv6 route filtering (well-known community)\n"
9115 "RT translated VPNv4 route filtering (well-known community)\n"
9116 "Exact match of the communities\n"
9117 "Display routes matching the community-list\n"
9118 "community-list number\n"
9119 "community-list name\n"
9120 "Exact match of the communities\n"
9122 "Display route and more specific routes\n"
9124 "Display route and more specific routes\n")
9126 afi_t afi
= AFI_IP6
;
9127 safi_t safi
= SAFI_UNICAST
;
9128 int exact_match
= 0;
9129 struct bgp
*bgp
= NULL
;
9132 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
9137 if (argv_find(argv
, argc
, "dampening", &idx
)) {
9138 if (argv_find(argv
, argc
, "parameters", &idx
))
9139 return bgp_show_dampening_parameters(vty
, afi
, safi
);
9142 if (argv_find(argv
, argc
, "prefix-list", &idx
))
9143 return bgp_show_prefix_list(vty
, bgp
, argv
[idx
+ 1]->arg
, afi
,
9144 safi
, bgp_show_type_prefix_list
);
9146 if (argv_find(argv
, argc
, "filter-list", &idx
))
9147 return bgp_show_filter_list(vty
, bgp
, argv
[idx
+ 1]->arg
, afi
,
9148 safi
, bgp_show_type_filter_list
);
9150 if (argv_find(argv
, argc
, "statistics", &idx
))
9151 return bgp_table_stats(vty
, bgp
, afi
, safi
);
9153 if (argv_find(argv
, argc
, "route-map", &idx
))
9154 return bgp_show_route_map(vty
, bgp
, argv
[idx
+ 1]->arg
, afi
,
9155 safi
, bgp_show_type_route_map
);
9157 if (argv_find(argv
, argc
, "community-list", &idx
)) {
9158 const char *clist_number_or_name
= argv
[++idx
]->arg
;
9159 if (++idx
< argc
&& strmatch(argv
[idx
]->text
, "exact-match"))
9161 return bgp_show_community_list(vty
, bgp
, clist_number_or_name
,
9162 exact_match
, afi
, safi
);
9165 if (argv_find(argv
, argc
, "A.B.C.D/M", &idx
)
9166 || argv_find(argv
, argc
, "X:X::X:X/M", &idx
))
9167 return bgp_show_prefix_longer(vty
, bgp
, argv
[idx
]->arg
, afi
,
9169 bgp_show_type_prefix_longer
);
9174 /* BGP route print out function with JSON */
9175 DEFUN (show_ip_bgp_json
,
9176 show_ip_bgp_json_cmd
,
9177 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]]\
9180 |dampening <flap-statistics|dampened-paths>\
9181 |community [<AA:NN|local-AS|no-advertise|no-export|graceful-shutdown>] [exact-match]\
9186 BGP_INSTANCE_HELP_STR
9188 BGP_SAFI_WITH_LABEL_HELP_STR
9189 "Display only routes with non-natural netmasks\n"
9190 "Display detailed information about dampening\n"
9191 "Display flap statistics of routes\n"
9192 "Display paths suppressed due to dampening\n"
9193 "Display routes matching the communities\n"
9195 "Do not send outside local AS (well-known community)\n"
9196 "Do not advertise to any peer (well-known community)\n"
9197 "Do not export to next AS (well-known community)\n"
9198 "Graceful shutdown (well-known community)\n"
9199 "Exact match of the communities\n"
9202 afi_t afi
= AFI_IP6
;
9203 safi_t safi
= SAFI_UNICAST
;
9204 enum bgp_show_type sh_type
= bgp_show_type_normal
;
9205 struct bgp
*bgp
= NULL
;
9207 int idx_community_type
= 0;
9208 int exact_match
= 0;
9209 bool uj
= use_json(argc
, argv
);
9214 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
9219 if (argv_find(argv
, argc
, "cidr-only", &idx
))
9220 return bgp_show(vty
, bgp
, afi
, safi
, bgp_show_type_cidr_only
,
9223 if (argv_find(argv
, argc
, "dampening", &idx
)) {
9224 if (argv_find(argv
, argc
, "dampened-paths", &idx
))
9225 return bgp_show(vty
, bgp
, afi
, safi
,
9226 bgp_show_type_dampend_paths
, NULL
, uj
);
9227 else if (argv_find(argv
, argc
, "flap-statistics", &idx
))
9228 return bgp_show(vty
, bgp
, afi
, safi
,
9229 bgp_show_type_flap_statistics
, NULL
,
9233 if (argv_find(argv
, argc
, "community", &idx
)) {
9235 /* show a specific community */
9236 if (argv_find(argv
, argc
, "local-AS", &idx_community_type
) ||
9237 argv_find(argv
, argc
, "no-advertise",
9238 &idx_community_type
) ||
9239 argv_find(argv
, argc
, "no-export",
9240 &idx_community_type
) ||
9241 argv_find(argv
, argc
, "graceful-shutdown",
9242 &idx_community_type
) ||
9243 argv_find(argv
, argc
, "AA:NN", &idx_community_type
)) {
9244 if (argv_find(argv
, argc
, "exact-match", &idx
))
9247 return (bgp_show_community(vty
, bgp
,
9248 argv
[idx_community_type
]->arg
,
9249 exact_match
, afi
, safi
, uj
));
9252 /* show all communities */
9253 return (bgp_show(vty
, bgp
, afi
, safi
,
9254 bgp_show_type_community_all
, NULL
,
9259 return bgp_show(vty
, bgp
, afi
, safi
, sh_type
, NULL
, uj
);
9262 DEFUN (show_ip_bgp_route
,
9263 show_ip_bgp_route_cmd
,
9264 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]]"
9265 "<A.B.C.D|A.B.C.D/M|X:X::X:X|X:X::X:X/M> [<bestpath|multipath>] [json]",
9269 BGP_INSTANCE_HELP_STR
9271 BGP_SAFI_WITH_LABEL_HELP_STR
9272 "Network in the BGP routing table to display\n"
9274 "Network in the BGP routing table to display\n"
9276 "Display only the bestpath\n"
9277 "Display only multipaths\n"
9280 int prefix_check
= 0;
9282 afi_t afi
= AFI_IP6
;
9283 safi_t safi
= SAFI_UNICAST
;
9284 char *prefix
= NULL
;
9285 struct bgp
*bgp
= NULL
;
9286 enum bgp_path_type path_type
;
9287 bool uj
= use_json(argc
, argv
);
9291 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
9298 "Specified 'all' vrf's but this command currently only works per view/vrf\n");
9302 /* <A.B.C.D|A.B.C.D/M|X:X::X:X|X:X::X:X/M> */
9303 if (argv_find(argv
, argc
, "A.B.C.D", &idx
)
9304 || argv_find(argv
, argc
, "X:X::X:X", &idx
))
9306 else if (argv_find(argv
, argc
, "A.B.C.D/M", &idx
)
9307 || argv_find(argv
, argc
, "X:X::X:X/M", &idx
))
9310 if ((argv
[idx
]->type
== IPV6_TKN
|| argv
[idx
]->type
== IPV6_PREFIX_TKN
)
9311 && afi
!= AFI_IP6
) {
9313 "%% Cannot specify IPv6 address or prefix with IPv4 AFI\n");
9316 if ((argv
[idx
]->type
== IPV4_TKN
|| argv
[idx
]->type
== IPV4_PREFIX_TKN
)
9319 "%% Cannot specify IPv4 address or prefix with IPv6 AFI\n");
9323 prefix
= argv
[idx
]->arg
;
9325 /* [<bestpath|multipath>] */
9326 if (argv_find(argv
, argc
, "bestpath", &idx
))
9327 path_type
= BGP_PATH_BESTPATH
;
9328 else if (argv_find(argv
, argc
, "multipath", &idx
))
9329 path_type
= BGP_PATH_MULTIPATH
;
9331 path_type
= BGP_PATH_ALL
;
9333 return bgp_show_route(vty
, bgp
, prefix
, afi
, safi
, NULL
, prefix_check
,
9337 DEFUN (show_ip_bgp_regexp
,
9338 show_ip_bgp_regexp_cmd
,
9339 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]] regexp REGEX...",
9343 BGP_INSTANCE_HELP_STR
9345 BGP_SAFI_WITH_LABEL_HELP_STR
9346 "Display routes matching the AS path regular expression\n"
9347 "A regular-expression to match the BGP AS paths\n")
9349 afi_t afi
= AFI_IP6
;
9350 safi_t safi
= SAFI_UNICAST
;
9351 struct bgp
*bgp
= NULL
;
9354 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
9359 // get index of regex
9360 argv_find(argv
, argc
, "regexp", &idx
);
9363 char *regstr
= argv_concat(argv
, argc
, idx
);
9364 int rc
= bgp_show_regexp(vty
, bgp
, (const char *)regstr
, afi
, safi
,
9365 bgp_show_type_regexp
);
9366 XFREE(MTYPE_TMP
, regstr
);
9370 DEFUN (show_ip_bgp_instance_all
,
9371 show_ip_bgp_instance_all_cmd
,
9372 "show [ip] bgp <view|vrf> all ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]] [json]",
9376 BGP_INSTANCE_ALL_HELP_STR
9378 BGP_SAFI_WITH_LABEL_HELP_STR
9382 safi_t safi
= SAFI_UNICAST
;
9383 struct bgp
*bgp
= NULL
;
9385 bool uj
= use_json(argc
, argv
);
9390 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
9395 bgp_show_all_instances_routes_vty(vty
, afi
, safi
, uj
);
9399 static int bgp_show_regexp(struct vty
*vty
, struct bgp
*bgp
, const char *regstr
,
9400 afi_t afi
, safi_t safi
, enum bgp_show_type type
)
9405 regex
= bgp_regcomp(regstr
);
9407 vty_out(vty
, "Can't compile regexp %s\n", regstr
);
9411 rc
= bgp_show(vty
, bgp
, afi
, safi
, type
, regex
, 0);
9412 bgp_regex_free(regex
);
9416 static int bgp_show_prefix_list(struct vty
*vty
, struct bgp
*bgp
,
9417 const char *prefix_list_str
, afi_t afi
,
9418 safi_t safi
, enum bgp_show_type type
)
9420 struct prefix_list
*plist
;
9422 plist
= prefix_list_lookup(afi
, prefix_list_str
);
9423 if (plist
== NULL
) {
9424 vty_out(vty
, "%% %s is not a valid prefix-list name\n",
9429 return bgp_show(vty
, bgp
, afi
, safi
, type
, plist
, 0);
9432 static int bgp_show_filter_list(struct vty
*vty
, struct bgp
*bgp
,
9433 const char *filter
, afi_t afi
, safi_t safi
,
9434 enum bgp_show_type type
)
9436 struct as_list
*as_list
;
9438 as_list
= as_list_lookup(filter
);
9439 if (as_list
== NULL
) {
9440 vty_out(vty
, "%% %s is not a valid AS-path access-list name\n",
9445 return bgp_show(vty
, bgp
, afi
, safi
, type
, as_list
, 0);
9448 static int bgp_show_route_map(struct vty
*vty
, struct bgp
*bgp
,
9449 const char *rmap_str
, afi_t afi
, safi_t safi
,
9450 enum bgp_show_type type
)
9452 struct route_map
*rmap
;
9454 rmap
= route_map_lookup_by_name(rmap_str
);
9456 vty_out(vty
, "%% %s is not a valid route-map name\n", rmap_str
);
9460 return bgp_show(vty
, bgp
, afi
, safi
, type
, rmap
, 0);
9463 static int bgp_show_community(struct vty
*vty
, struct bgp
*bgp
,
9464 const char *comstr
, int exact
, afi_t afi
,
9465 safi_t safi
, bool use_json
)
9467 struct community
*com
;
9470 com
= community_str2com(comstr
);
9472 vty_out(vty
, "%% Community malformed: %s\n", comstr
);
9476 ret
= bgp_show(vty
, bgp
, afi
, safi
,
9477 (exact
? bgp_show_type_community_exact
9478 : bgp_show_type_community
),
9480 community_free(com
);
9485 static int bgp_show_community_list(struct vty
*vty
, struct bgp
*bgp
,
9486 const char *com
, int exact
, afi_t afi
,
9489 struct community_list
*list
;
9491 list
= community_list_lookup(bgp_clist
, com
, COMMUNITY_LIST_MASTER
);
9493 vty_out(vty
, "%% %s is not a valid community-list name\n", com
);
9497 return bgp_show(vty
, bgp
, afi
, safi
,
9498 (exact
? bgp_show_type_community_list_exact
9499 : bgp_show_type_community_list
),
9503 static int bgp_show_prefix_longer(struct vty
*vty
, struct bgp
*bgp
,
9504 const char *prefix
, afi_t afi
, safi_t safi
,
9505 enum bgp_show_type type
)
9512 ret
= str2prefix(prefix
, p
);
9514 vty_out(vty
, "%% Malformed Prefix\n");
9518 ret
= bgp_show(vty
, bgp
, afi
, safi
, type
, p
, 0);
9523 static struct peer
*peer_lookup_in_view(struct vty
*vty
, struct bgp
*bgp
,
9524 const char *ip_str
, bool use_json
)
9530 /* Get peer sockunion. */
9531 ret
= str2sockunion(ip_str
, &su
);
9533 peer
= peer_lookup_by_conf_if(bgp
, ip_str
);
9535 peer
= peer_lookup_by_hostname(bgp
, ip_str
);
9539 json_object
*json_no
= NULL
;
9540 json_no
= json_object_new_object();
9541 json_object_string_add(
9543 "malformedAddressOrName",
9545 vty_out(vty
, "%s\n",
9546 json_object_to_json_string_ext(
9548 JSON_C_TO_STRING_PRETTY
));
9549 json_object_free(json_no
);
9552 "%% Malformed address or name: %s\n",
9560 /* Peer structure lookup. */
9561 peer
= peer_lookup(bgp
, &su
);
9564 json_object
*json_no
= NULL
;
9565 json_no
= json_object_new_object();
9566 json_object_string_add(json_no
, "warning",
9567 "No such neighbor in this view/vrf");
9568 vty_out(vty
, "%s\n",
9569 json_object_to_json_string_ext(
9570 json_no
, JSON_C_TO_STRING_PRETTY
));
9571 json_object_free(json_no
);
9573 vty_out(vty
, "No such neighbor in this view/vrf\n");
9581 BGP_STATS_MAXBITLEN
= 0,
9585 BGP_STATS_UNAGGREGATEABLE
,
9586 BGP_STATS_MAX_AGGREGATEABLE
,
9587 BGP_STATS_AGGREGATES
,
9589 BGP_STATS_ASPATH_COUNT
,
9590 BGP_STATS_ASPATH_MAXHOPS
,
9591 BGP_STATS_ASPATH_TOTHOPS
,
9592 BGP_STATS_ASPATH_MAXSIZE
,
9593 BGP_STATS_ASPATH_TOTSIZE
,
9594 BGP_STATS_ASN_HIGHEST
,
9598 static const char *table_stats_strs
[] = {
9599 [BGP_STATS_PREFIXES
] = "Total Prefixes",
9600 [BGP_STATS_TOTPLEN
] = "Average prefix length",
9601 [BGP_STATS_RIB
] = "Total Advertisements",
9602 [BGP_STATS_UNAGGREGATEABLE
] = "Unaggregateable prefixes",
9603 [BGP_STATS_MAX_AGGREGATEABLE
] =
9604 "Maximum aggregateable prefixes",
9605 [BGP_STATS_AGGREGATES
] = "BGP Aggregate advertisements",
9606 [BGP_STATS_SPACE
] = "Address space advertised",
9607 [BGP_STATS_ASPATH_COUNT
] = "Advertisements with paths",
9608 [BGP_STATS_ASPATH_MAXHOPS
] = "Longest AS-Path (hops)",
9609 [BGP_STATS_ASPATH_MAXSIZE
] = "Largest AS-Path (bytes)",
9610 [BGP_STATS_ASPATH_TOTHOPS
] = "Average AS-Path length (hops)",
9611 [BGP_STATS_ASPATH_TOTSIZE
] = "Average AS-Path size (bytes)",
9612 [BGP_STATS_ASN_HIGHEST
] = "Highest public ASN",
9613 [BGP_STATS_MAX
] = NULL
,
9616 struct bgp_table_stats
{
9617 struct bgp_table
*table
;
9618 unsigned long long counts
[BGP_STATS_MAX
];
9623 #define TALLY_SIGFIG 100000
9624 static unsigned long
9625 ravg_tally (unsigned long count
, unsigned long oldavg
, unsigned long newval
)
9627 unsigned long newtot
= (count
-1) * oldavg
+ (newval
* TALLY_SIGFIG
);
9628 unsigned long res
= (newtot
* TALLY_SIGFIG
) / count
;
9629 unsigned long ret
= newtot
/ count
;
9631 if ((res
% TALLY_SIGFIG
) > (TALLY_SIGFIG
/2))
9638 static int bgp_table_stats_walker(struct thread
*t
)
9640 struct bgp_node
*rn
;
9641 struct bgp_node
*top
;
9642 struct bgp_table_stats
*ts
= THREAD_ARG(t
);
9643 unsigned int space
= 0;
9645 if (!(top
= bgp_table_top(ts
->table
)))
9648 switch (top
->p
.family
) {
9650 space
= IPV4_MAX_BITLEN
;
9653 space
= IPV6_MAX_BITLEN
;
9657 ts
->counts
[BGP_STATS_MAXBITLEN
] = space
;
9659 for (rn
= top
; rn
; rn
= bgp_route_next(rn
)) {
9660 struct bgp_info
*ri
;
9661 struct bgp_node
*prn
= bgp_node_parent_nolock(rn
);
9662 unsigned int rinum
= 0;
9670 ts
->counts
[BGP_STATS_PREFIXES
]++;
9671 ts
->counts
[BGP_STATS_TOTPLEN
] += rn
->p
.prefixlen
;
9674 ts
->counts
[BGP_STATS_AVGPLEN
]
9675 = ravg_tally (ts
->counts
[BGP_STATS_PREFIXES
],
9676 ts
->counts
[BGP_STATS_AVGPLEN
],
9680 /* check if the prefix is included by any other announcements */
9681 while (prn
&& !prn
->info
)
9682 prn
= bgp_node_parent_nolock(prn
);
9684 if (prn
== NULL
|| prn
== top
) {
9685 ts
->counts
[BGP_STATS_UNAGGREGATEABLE
]++;
9686 /* announced address space */
9689 pow(2.0, space
- rn
->p
.prefixlen
);
9690 } else if (prn
->info
)
9691 ts
->counts
[BGP_STATS_MAX_AGGREGATEABLE
]++;
9693 for (ri
= rn
->info
; ri
; ri
= ri
->next
) {
9695 ts
->counts
[BGP_STATS_RIB
]++;
9698 && (CHECK_FLAG(ri
->attr
->flag
,
9700 BGP_ATTR_ATOMIC_AGGREGATE
))))
9701 ts
->counts
[BGP_STATS_AGGREGATES
]++;
9704 if (ri
->attr
&& ri
->attr
->aspath
) {
9706 aspath_count_hops(ri
->attr
->aspath
);
9708 aspath_size(ri
->attr
->aspath
);
9709 as_t highest
= aspath_highest(ri
->attr
->aspath
);
9711 ts
->counts
[BGP_STATS_ASPATH_COUNT
]++;
9713 if (hops
> ts
->counts
[BGP_STATS_ASPATH_MAXHOPS
])
9714 ts
->counts
[BGP_STATS_ASPATH_MAXHOPS
] =
9717 if (size
> ts
->counts
[BGP_STATS_ASPATH_MAXSIZE
])
9718 ts
->counts
[BGP_STATS_ASPATH_MAXSIZE
] =
9721 ts
->counts
[BGP_STATS_ASPATH_TOTHOPS
] += hops
;
9722 ts
->counts
[BGP_STATS_ASPATH_TOTSIZE
] += size
;
9724 ts
->counts
[BGP_STATS_ASPATH_AVGHOPS
]
9725 = ravg_tally (ts
->counts
[BGP_STATS_ASPATH_COUNT
],
9726 ts
->counts
[BGP_STATS_ASPATH_AVGHOPS
],
9728 ts
->counts
[BGP_STATS_ASPATH_AVGSIZE
]
9729 = ravg_tally (ts
->counts
[BGP_STATS_ASPATH_COUNT
],
9730 ts
->counts
[BGP_STATS_ASPATH_AVGSIZE
],
9733 if (highest
> ts
->counts
[BGP_STATS_ASN_HIGHEST
])
9734 ts
->counts
[BGP_STATS_ASN_HIGHEST
] =
9742 static int bgp_table_stats(struct vty
*vty
, struct bgp
*bgp
, afi_t afi
,
9745 struct bgp_table_stats ts
;
9748 if (!bgp
->rib
[afi
][safi
]) {
9749 vty_out(vty
, "%% No RIB exist's for the AFI(%d)/SAFI(%d)\n",
9754 vty_out(vty
, "BGP %s RIB statistics\n", afi_safi_print(afi
, safi
));
9756 /* labeled-unicast routes live in the unicast table */
9757 if (safi
== SAFI_LABELED_UNICAST
)
9758 safi
= SAFI_UNICAST
;
9760 memset(&ts
, 0, sizeof(ts
));
9761 ts
.table
= bgp
->rib
[afi
][safi
];
9762 thread_execute(bm
->master
, bgp_table_stats_walker
, &ts
, 0);
9764 for (i
= 0; i
< BGP_STATS_MAX
; i
++) {
9765 if (!table_stats_strs
[i
])
9770 case BGP_STATS_ASPATH_AVGHOPS
:
9771 case BGP_STATS_ASPATH_AVGSIZE
:
9772 case BGP_STATS_AVGPLEN
:
9773 vty_out (vty
, "%-30s: ", table_stats_strs
[i
]);
9774 vty_out (vty
, "%12.2f",
9775 (float)ts
.counts
[i
] / (float)TALLY_SIGFIG
);
9778 case BGP_STATS_ASPATH_TOTHOPS
:
9779 case BGP_STATS_ASPATH_TOTSIZE
:
9780 vty_out(vty
, "%-30s: ", table_stats_strs
[i
]);
9781 vty_out(vty
, "%12.2f",
9783 ? (float)ts
.counts
[i
]
9785 [BGP_STATS_ASPATH_COUNT
]
9788 case BGP_STATS_TOTPLEN
:
9789 vty_out(vty
, "%-30s: ", table_stats_strs
[i
]);
9790 vty_out(vty
, "%12.2f",
9792 ? (float)ts
.counts
[i
]
9794 [BGP_STATS_PREFIXES
]
9797 case BGP_STATS_SPACE
:
9798 vty_out(vty
, "%-30s: ", table_stats_strs
[i
]);
9799 vty_out(vty
, "%12g\n", ts
.total_space
);
9801 if (afi
== AFI_IP6
) {
9802 vty_out(vty
, "%30s: ", "/32 equivalent ");
9803 vty_out(vty
, "%12g\n",
9804 ts
.total_space
* pow(2.0, -128 + 32));
9805 vty_out(vty
, "%30s: ", "/48 equivalent ");
9806 vty_out(vty
, "%12g\n",
9807 ts
.total_space
* pow(2.0, -128 + 48));
9809 vty_out(vty
, "%30s: ", "% announced ");
9810 vty_out(vty
, "%12.2f\n",
9811 ts
.total_space
* 100. * pow(2.0, -32));
9812 vty_out(vty
, "%30s: ", "/8 equivalent ");
9813 vty_out(vty
, "%12.2f\n",
9814 ts
.total_space
* pow(2.0, -32 + 8));
9815 vty_out(vty
, "%30s: ", "/24 equivalent ");
9816 vty_out(vty
, "%12.2f\n",
9817 ts
.total_space
* pow(2.0, -32 + 24));
9821 vty_out(vty
, "%-30s: ", table_stats_strs
[i
]);
9822 vty_out(vty
, "%12llu", ts
.counts
[i
]);
9839 PCOUNT_PFCNT
, /* the figure we display to users */
9843 static const char *pcount_strs
[] = {
9844 [PCOUNT_ADJ_IN
] = "Adj-in",
9845 [PCOUNT_DAMPED
] = "Damped",
9846 [PCOUNT_REMOVED
] = "Removed",
9847 [PCOUNT_HISTORY
] = "History",
9848 [PCOUNT_STALE
] = "Stale",
9849 [PCOUNT_VALID
] = "Valid",
9850 [PCOUNT_ALL
] = "All RIB",
9851 [PCOUNT_COUNTED
] = "PfxCt counted",
9852 [PCOUNT_PFCNT
] = "Useable",
9853 [PCOUNT_MAX
] = NULL
,
9856 struct peer_pcounts
{
9857 unsigned int count
[PCOUNT_MAX
];
9858 const struct peer
*peer
;
9859 const struct bgp_table
*table
;
9862 static int bgp_peer_count_walker(struct thread
*t
)
9864 struct bgp_node
*rn
;
9865 struct peer_pcounts
*pc
= THREAD_ARG(t
);
9866 const struct peer
*peer
= pc
->peer
;
9868 for (rn
= bgp_table_top(pc
->table
); rn
; rn
= bgp_route_next(rn
)) {
9869 struct bgp_adj_in
*ain
;
9870 struct bgp_info
*ri
;
9872 for (ain
= rn
->adj_in
; ain
; ain
= ain
->next
)
9873 if (ain
->peer
== peer
)
9874 pc
->count
[PCOUNT_ADJ_IN
]++;
9876 for (ri
= rn
->info
; ri
; ri
= ri
->next
) {
9877 if (ri
->peer
!= peer
)
9880 pc
->count
[PCOUNT_ALL
]++;
9882 if (CHECK_FLAG(ri
->flags
, BGP_INFO_DAMPED
))
9883 pc
->count
[PCOUNT_DAMPED
]++;
9884 if (CHECK_FLAG(ri
->flags
, BGP_INFO_HISTORY
))
9885 pc
->count
[PCOUNT_HISTORY
]++;
9886 if (CHECK_FLAG(ri
->flags
, BGP_INFO_REMOVED
))
9887 pc
->count
[PCOUNT_REMOVED
]++;
9888 if (CHECK_FLAG(ri
->flags
, BGP_INFO_STALE
))
9889 pc
->count
[PCOUNT_STALE
]++;
9890 if (CHECK_FLAG(ri
->flags
, BGP_INFO_VALID
))
9891 pc
->count
[PCOUNT_VALID
]++;
9892 if (!CHECK_FLAG(ri
->flags
, BGP_INFO_UNUSEABLE
))
9893 pc
->count
[PCOUNT_PFCNT
]++;
9895 if (CHECK_FLAG(ri
->flags
, BGP_INFO_COUNTED
)) {
9896 pc
->count
[PCOUNT_COUNTED
]++;
9897 if (CHECK_FLAG(ri
->flags
, BGP_INFO_UNUSEABLE
))
9900 "Attempting to count but flags say it is unusable");
9902 if (!CHECK_FLAG(ri
->flags
, BGP_INFO_UNUSEABLE
))
9905 "Not counted but flags say we should");
9912 static int bgp_peer_counts(struct vty
*vty
, struct peer
*peer
, afi_t afi
,
9913 safi_t safi
, bool use_json
)
9915 struct peer_pcounts pcounts
= {.peer
= peer
};
9917 json_object
*json
= NULL
;
9918 json_object
*json_loop
= NULL
;
9921 json
= json_object_new_object();
9922 json_loop
= json_object_new_object();
9925 if (!peer
|| !peer
->bgp
|| !peer
->afc
[afi
][safi
]
9926 || !peer
->bgp
->rib
[afi
][safi
]) {
9928 json_object_string_add(
9930 "No such neighbor or address family");
9931 vty_out(vty
, "%s\n", json_object_to_json_string(json
));
9932 json_object_free(json
);
9934 vty_out(vty
, "%% No such neighbor or address family\n");
9939 memset(&pcounts
, 0, sizeof(pcounts
));
9940 pcounts
.peer
= peer
;
9941 pcounts
.table
= peer
->bgp
->rib
[afi
][safi
];
9943 /* in-place call via thread subsystem so as to record execution time
9944 * stats for the thread-walk (i.e. ensure this can't be blamed on
9945 * on just vty_read()).
9947 thread_execute(bm
->master
, bgp_peer_count_walker
, &pcounts
, 0);
9950 json_object_string_add(json
, "prefixCountsFor", peer
->host
);
9951 json_object_string_add(json
, "multiProtocol",
9952 afi_safi_print(afi
, safi
));
9953 json_object_int_add(json
, "pfxCounter",
9954 peer
->pcount
[afi
][safi
]);
9956 for (i
= 0; i
< PCOUNT_MAX
; i
++)
9957 json_object_int_add(json_loop
, pcount_strs
[i
],
9960 json_object_object_add(json
, "ribTableWalkCounters", json_loop
);
9962 if (pcounts
.count
[PCOUNT_PFCNT
] != peer
->pcount
[afi
][safi
]) {
9963 json_object_string_add(json
, "pfxctDriftFor",
9965 json_object_string_add(
9966 json
, "recommended",
9967 "Please report this bug, with the above command output");
9969 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
9970 json
, JSON_C_TO_STRING_PRETTY
));
9971 json_object_free(json
);
9975 && bgp_flag_check(peer
->bgp
, BGP_FLAG_SHOW_HOSTNAME
)) {
9976 vty_out(vty
, "Prefix counts for %s/%s, %s\n",
9977 peer
->hostname
, peer
->host
,
9978 afi_safi_print(afi
, safi
));
9980 vty_out(vty
, "Prefix counts for %s, %s\n", peer
->host
,
9981 afi_safi_print(afi
, safi
));
9984 vty_out(vty
, "PfxCt: %ld\n", peer
->pcount
[afi
][safi
]);
9985 vty_out(vty
, "\nCounts from RIB table walk:\n\n");
9987 for (i
= 0; i
< PCOUNT_MAX
; i
++)
9988 vty_out(vty
, "%20s: %-10d\n", pcount_strs
[i
],
9991 if (pcounts
.count
[PCOUNT_PFCNT
] != peer
->pcount
[afi
][safi
]) {
9992 vty_out(vty
, "%s [pcount] PfxCt drift!\n", peer
->host
);
9994 "Please report this bug, with the above command output\n");
10001 DEFUN (show_ip_bgp_instance_neighbor_prefix_counts
,
10002 show_ip_bgp_instance_neighbor_prefix_counts_cmd
,
10003 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_CMD_STR
"]] "
10004 "neighbors <A.B.C.D|X:X::X:X|WORD> prefix-counts [json]",
10008 BGP_INSTANCE_HELP_STR
10011 "Detailed information on TCP and BGP neighbor connections\n"
10012 "Neighbor to display information about\n"
10013 "Neighbor to display information about\n"
10014 "Neighbor on BGP configured interface\n"
10015 "Display detailed prefix count information\n"
10018 afi_t afi
= AFI_IP6
;
10019 safi_t safi
= SAFI_UNICAST
;
10022 struct bgp
*bgp
= NULL
;
10023 bool uj
= use_json(argc
, argv
);
10028 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
10031 return CMD_WARNING
;
10033 argv_find(argv
, argc
, "neighbors", &idx
);
10034 peer
= peer_lookup_in_view(vty
, bgp
, argv
[idx
+ 1]->arg
, uj
);
10036 return CMD_WARNING
;
10038 return bgp_peer_counts(vty
, peer
, AFI_IP
, SAFI_UNICAST
, uj
);
10041 #ifdef KEEP_OLD_VPN_COMMANDS
10042 DEFUN (show_ip_bgp_vpn_neighbor_prefix_counts
,
10043 show_ip_bgp_vpn_neighbor_prefix_counts_cmd
,
10044 "show [ip] bgp <vpnv4|vpnv6> all neighbors <A.B.C.D|X:X::X:X|WORD> prefix-counts [json]",
10049 "Display information about all VPNv4 NLRIs\n"
10050 "Detailed information on TCP and BGP neighbor connections\n"
10051 "Neighbor to display information about\n"
10052 "Neighbor to display information about\n"
10053 "Neighbor on BGP configured interface\n"
10054 "Display detailed prefix count information\n"
10059 bool uj
= use_json(argc
, argv
);
10061 peer
= peer_lookup_in_view(vty
, NULL
, argv
[idx_peer
]->arg
, uj
);
10063 return CMD_WARNING
;
10065 return bgp_peer_counts(vty
, peer
, AFI_IP
, SAFI_MPLS_VPN
, uj
);
10068 DEFUN (show_ip_bgp_vpn_all_route_prefix
,
10069 show_ip_bgp_vpn_all_route_prefix_cmd
,
10070 "show [ip] bgp <vpnv4|vpnv6> all <A.B.C.D|A.B.C.D/M> [json]",
10075 "Display information about all VPNv4 NLRIs\n"
10076 "Network in the BGP routing table to display\n"
10077 "Network in the BGP routing table to display\n"
10081 char *network
= NULL
;
10082 struct bgp
*bgp
= bgp_get_default();
10084 vty_out(vty
, "Can't find default instance\n");
10085 return CMD_WARNING
;
10088 if (argv_find(argv
, argc
, "A.B.C.D", &idx
))
10089 network
= argv
[idx
]->arg
;
10090 else if (argv_find(argv
, argc
, "A.B.C.D/M", &idx
))
10091 network
= argv
[idx
]->arg
;
10093 vty_out(vty
, "Unable to figure out Network\n");
10094 return CMD_WARNING
;
10097 return bgp_show_route(vty
, bgp
, network
, AFI_IP
, SAFI_MPLS_VPN
, NULL
, 0,
10098 BGP_PATH_ALL
, use_json(argc
, argv
));
10100 #endif /* KEEP_OLD_VPN_COMMANDS */
10102 DEFUN (show_ip_bgp_l2vpn_evpn_all_route_prefix
,
10103 show_ip_bgp_l2vpn_evpn_all_route_prefix_cmd
,
10104 "show [ip] bgp l2vpn evpn all <A.B.C.D|A.B.C.D/M> [json]",
10110 "Display information about all EVPN NLRIs\n"
10111 "Network in the BGP routing table to display\n"
10112 "Network in the BGP routing table to display\n"
10116 char *network
= NULL
;
10118 if (argv_find(argv
, argc
, "A.B.C.D", &idx
))
10119 network
= argv
[idx
]->arg
;
10120 else if (argv_find(argv
, argc
, "A.B.C.D/M", &idx
))
10121 network
= argv
[idx
]->arg
;
10123 vty_out(vty
, "Unable to figure out Network\n");
10124 return CMD_WARNING
;
10126 return bgp_show_route(vty
, NULL
, network
, AFI_L2VPN
, SAFI_EVPN
, NULL
, 0,
10127 BGP_PATH_ALL
, use_json(argc
, argv
));
10130 static void show_adj_route(struct vty
*vty
, struct peer
*peer
, afi_t afi
,
10131 safi_t safi
, enum bgp_show_adj_route_type type
,
10132 const char *rmap_name
, bool use_json
,
10135 struct bgp_table
*table
;
10136 struct bgp_adj_in
*ain
;
10137 struct bgp_adj_out
*adj
;
10138 unsigned long output_count
;
10139 unsigned long filtered_count
;
10140 struct bgp_node
*rn
;
10146 struct update_subgroup
*subgrp
;
10147 json_object
*json_scode
= NULL
;
10148 json_object
*json_ocode
= NULL
;
10149 json_object
*json_ar
= NULL
;
10150 struct peer_af
*paf
;
10151 bool route_filtered
;
10154 json_scode
= json_object_new_object();
10155 json_ocode
= json_object_new_object();
10156 json_ar
= json_object_new_object();
10158 json_object_string_add(json_scode
, "suppressed", "s");
10159 json_object_string_add(json_scode
, "damped", "d");
10160 json_object_string_add(json_scode
, "history", "h");
10161 json_object_string_add(json_scode
, "valid", "*");
10162 json_object_string_add(json_scode
, "best", ">");
10163 json_object_string_add(json_scode
, "multipath", "=");
10164 json_object_string_add(json_scode
, "internal", "i");
10165 json_object_string_add(json_scode
, "ribFailure", "r");
10166 json_object_string_add(json_scode
, "stale", "S");
10167 json_object_string_add(json_scode
, "removed", "R");
10169 json_object_string_add(json_ocode
, "igp", "i");
10170 json_object_string_add(json_ocode
, "egp", "e");
10171 json_object_string_add(json_ocode
, "incomplete", "?");
10178 json_object_string_add(json
, "alert", "no BGP");
10179 vty_out(vty
, "%s\n", json_object_to_json_string(json
));
10180 json_object_free(json
);
10182 vty_out(vty
, "%% No bgp\n");
10186 table
= bgp
->rib
[afi
][safi
];
10188 output_count
= filtered_count
= 0;
10189 subgrp
= peer_subgroup(peer
, afi
, safi
);
10191 if (type
== bgp_show_adj_route_advertised
&& subgrp
10192 && CHECK_FLAG(subgrp
->sflags
, SUBGRP_STATUS_DEFAULT_ORIGINATE
)) {
10194 json_object_int_add(json
, "bgpTableVersion",
10196 json_object_string_add(json
, "bgpLocalRouterId",
10197 inet_ntoa(bgp
->router_id
));
10198 json_object_object_add(json
, "bgpStatusCodes",
10200 json_object_object_add(json
, "bgpOriginCodes",
10202 json_object_string_add(
10203 json
, "bgpOriginatingDefaultNetwork",
10204 (afi
== AFI_IP
) ? "0.0.0.0/0" : "::/0");
10206 vty_out(vty
, "BGP table version is %" PRIu64
10207 ", local router ID is %s, vrf id ",
10208 table
->version
, inet_ntoa(bgp
->router_id
));
10209 if (bgp
->vrf_id
== VRF_UNKNOWN
)
10210 vty_out(vty
, "%s", VRFID_NONE_STR
);
10212 vty_out(vty
, "%u", bgp
->vrf_id
);
10213 vty_out(vty
, "\n");
10214 vty_out(vty
, BGP_SHOW_SCODE_HEADER
);
10215 vty_out(vty
, BGP_SHOW_NCODE_HEADER
);
10216 vty_out(vty
, BGP_SHOW_OCODE_HEADER
);
10218 vty_out(vty
, "Originating default network %s\n\n",
10219 (afi
== AFI_IP
) ? "0.0.0.0/0" : "::/0");
10224 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
)) {
10225 if (type
== bgp_show_adj_route_received
10226 || type
== bgp_show_adj_route_filtered
) {
10227 for (ain
= rn
->adj_in
; ain
; ain
= ain
->next
) {
10228 if (ain
->peer
!= peer
|| !ain
->attr
)
10233 json_object_int_add(
10234 json
, "bgpTableVersion",
10236 json_object_string_add(
10238 "bgpLocalRouterId",
10241 json_object_object_add(
10242 json
, "bgpStatusCodes",
10244 json_object_object_add(
10245 json
, "bgpOriginCodes",
10249 "BGP table version is 0, local router ID is %s, vrf id ",
10252 if (bgp
->vrf_id
== VRF_UNKNOWN
)
10258 vty_out(vty
, "\n");
10260 BGP_SHOW_SCODE_HEADER
);
10262 BGP_SHOW_NCODE_HEADER
);
10264 BGP_SHOW_OCODE_HEADER
);
10270 vty_out(vty
, BGP_SHOW_HEADER
);
10274 bgp_attr_dup(&attr
, ain
->attr
);
10275 route_filtered
= false;
10277 /* Filter prefix using distribute list,
10278 * filter list or prefix list
10280 if ((bgp_input_filter(peer
, &rn
->p
, &attr
, afi
,
10281 safi
)) == FILTER_DENY
)
10282 route_filtered
= true;
10284 /* Filter prefix using route-map */
10285 ret
= bgp_input_modifier(peer
, &rn
->p
, &attr
,
10286 afi
, safi
, rmap_name
);
10288 if (type
== bgp_show_adj_route_filtered
&&
10289 !route_filtered
&& ret
!= RMAP_DENY
) {
10290 bgp_attr_undup(&attr
, ain
->attr
);
10294 if (type
== bgp_show_adj_route_received
&&
10295 (route_filtered
|| ret
== RMAP_DENY
))
10298 route_vty_out_tmp(vty
, &rn
->p
, &attr
, safi
,
10299 use_json
, json_ar
);
10300 bgp_attr_undup(&attr
, ain
->attr
);
10303 } else if (type
== bgp_show_adj_route_advertised
) {
10304 for (adj
= rn
->adj_out
; adj
; adj
= adj
->next
)
10305 SUBGRP_FOREACH_PEER (adj
->subgroup
, paf
) {
10306 if (paf
->peer
!= peer
|| !adj
->attr
)
10311 json_object_int_add(
10315 json_object_string_add(
10317 "bgpLocalRouterId",
10320 json_object_object_add(
10324 json_object_object_add(
10330 "BGP table version is %" PRIu64
10331 ", local router ID is %s, vrf id ",
10344 vty_out(vty
, "\n");
10346 BGP_SHOW_SCODE_HEADER
);
10348 BGP_SHOW_NCODE_HEADER
);
10350 BGP_SHOW_OCODE_HEADER
);
10361 bgp_attr_dup(&attr
, adj
->attr
);
10362 ret
= bgp_output_modifier(
10363 peer
, &rn
->p
, &attr
, afi
, safi
,
10366 if (ret
!= RMAP_DENY
) {
10367 route_vty_out_tmp(vty
, &rn
->p
,
10376 bgp_attr_undup(&attr
, adj
->attr
);
10382 json_object_object_add(json
, "advertisedRoutes", json_ar
);
10383 json_object_int_add(json
, "totalPrefixCounter", output_count
);
10384 json_object_int_add(json
, "filteredPrefixCounter",
10387 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
10388 json
, JSON_C_TO_STRING_PRETTY
));
10389 json_object_free(json
);
10390 } else if (output_count
> 0) {
10391 if (filtered_count
> 0)
10393 "\nTotal number of prefixes %ld (%ld filtered)\n",
10394 output_count
, filtered_count
);
10396 vty_out(vty
, "\nTotal number of prefixes %ld\n",
10401 static int peer_adj_routes(struct vty
*vty
, struct peer
*peer
, afi_t afi
,
10402 safi_t safi
, enum bgp_show_adj_route_type type
,
10403 const char *rmap_name
, bool use_json
)
10405 json_object
*json
= NULL
;
10408 json
= json_object_new_object();
10410 /* labeled-unicast routes live in the unicast table */
10411 if (safi
== SAFI_LABELED_UNICAST
)
10412 safi
= SAFI_UNICAST
;
10414 if (!peer
|| !peer
->afc
[afi
][safi
]) {
10416 json_object_string_add(
10418 "No such neighbor or address family");
10419 vty_out(vty
, "%s\n", json_object_to_json_string(json
));
10420 json_object_free(json
);
10422 vty_out(vty
, "%% No such neighbor or address family\n");
10424 return CMD_WARNING
;
10427 if ((type
== bgp_show_adj_route_received
10428 || type
== bgp_show_adj_route_filtered
)
10429 && !CHECK_FLAG(peer
->af_flags
[afi
][safi
],
10430 PEER_FLAG_SOFT_RECONFIG
)) {
10432 json_object_string_add(
10434 "Inbound soft reconfiguration not enabled");
10435 vty_out(vty
, "%s\n", json_object_to_json_string(json
));
10436 json_object_free(json
);
10439 "%% Inbound soft reconfiguration not enabled\n");
10441 return CMD_WARNING
;
10444 show_adj_route(vty
, peer
, afi
, safi
, type
, rmap_name
, use_json
, json
);
10446 return CMD_SUCCESS
;
10449 DEFUN (show_ip_bgp_instance_neighbor_advertised_route
,
10450 show_ip_bgp_instance_neighbor_advertised_route_cmd
,
10451 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]] "
10452 "neighbors <A.B.C.D|X:X::X:X|WORD> <advertised-routes|received-routes|filtered-routes> [route-map WORD] [json]",
10456 BGP_INSTANCE_HELP_STR
10458 BGP_SAFI_WITH_LABEL_HELP_STR
10459 "Detailed information on TCP and BGP neighbor connections\n"
10460 "Neighbor to display information about\n"
10461 "Neighbor to display information about\n"
10462 "Neighbor on BGP configured interface\n"
10463 "Display the routes advertised to a BGP neighbor\n"
10464 "Display the received routes from neighbor\n"
10465 "Display the filtered routes received from neighbor\n"
10466 "Route-map to modify the attributes\n"
10467 "Name of the route map\n"
10470 afi_t afi
= AFI_IP6
;
10471 safi_t safi
= SAFI_UNICAST
;
10472 char *rmap_name
= NULL
;
10473 char *peerstr
= NULL
;
10474 struct bgp
*bgp
= NULL
;
10476 enum bgp_show_adj_route_type type
= bgp_show_adj_route_advertised
;
10478 bool uj
= use_json(argc
, argv
);
10483 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
10486 return CMD_WARNING
;
10488 /* neighbors <A.B.C.D|X:X::X:X|WORD> */
10489 argv_find(argv
, argc
, "neighbors", &idx
);
10490 peerstr
= argv
[++idx
]->arg
;
10492 peer
= peer_lookup_in_view(vty
, bgp
, peerstr
, uj
);
10494 return CMD_WARNING
;
10496 if (argv_find(argv
, argc
, "advertised-routes", &idx
))
10497 type
= bgp_show_adj_route_advertised
;
10498 else if (argv_find(argv
, argc
, "received-routes", &idx
))
10499 type
= bgp_show_adj_route_received
;
10500 else if (argv_find(argv
, argc
, "filtered-routes", &idx
))
10501 type
= bgp_show_adj_route_filtered
;
10503 if (argv_find(argv
, argc
, "route-map", &idx
))
10504 rmap_name
= argv
[++idx
]->arg
;
10506 return peer_adj_routes(vty
, peer
, afi
, safi
, type
, rmap_name
, uj
);
10509 DEFUN (show_ip_bgp_neighbor_received_prefix_filter
,
10510 show_ip_bgp_neighbor_received_prefix_filter_cmd
,
10511 "show [ip] bgp [<ipv4|ipv6> [unicast]] neighbors <A.B.C.D|X:X::X:X|WORD> received prefix-filter [json]",
10517 "Address Family modifier\n"
10518 "Detailed information on TCP and BGP neighbor connections\n"
10519 "Neighbor to display information about\n"
10520 "Neighbor to display information about\n"
10521 "Neighbor on BGP configured interface\n"
10522 "Display information received from a BGP neighbor\n"
10523 "Display the prefixlist filter\n"
10526 afi_t afi
= AFI_IP6
;
10527 safi_t safi
= SAFI_UNICAST
;
10528 char *peerstr
= NULL
;
10531 union sockunion su
;
10537 /* show [ip] bgp */
10538 if (argv_find(argv
, argc
, "ip", &idx
))
10540 /* [<ipv4|ipv6> [unicast]] */
10541 if (argv_find(argv
, argc
, "ipv4", &idx
))
10543 if (argv_find(argv
, argc
, "ipv6", &idx
))
10545 /* neighbors <A.B.C.D|X:X::X:X|WORD> */
10546 argv_find(argv
, argc
, "neighbors", &idx
);
10547 peerstr
= argv
[++idx
]->arg
;
10549 bool uj
= use_json(argc
, argv
);
10551 ret
= str2sockunion(peerstr
, &su
);
10553 peer
= peer_lookup_by_conf_if(NULL
, peerstr
);
10556 vty_out(vty
, "{}\n");
10559 "%% Malformed address or name: %s\n",
10561 return CMD_WARNING
;
10564 peer
= peer_lookup(NULL
, &su
);
10567 vty_out(vty
, "{}\n");
10569 vty_out(vty
, "No peer\n");
10570 return CMD_WARNING
;
10574 sprintf(name
, "%s.%d.%d", peer
->host
, afi
, safi
);
10575 count
= prefix_bgp_show_prefix_list(NULL
, afi
, name
, uj
);
10578 vty_out(vty
, "Address Family: %s\n",
10579 afi_safi_print(afi
, safi
));
10580 prefix_bgp_show_prefix_list(vty
, afi
, name
, uj
);
10583 vty_out(vty
, "{}\n");
10585 vty_out(vty
, "No functional output\n");
10588 return CMD_SUCCESS
;
10591 static int bgp_show_neighbor_route(struct vty
*vty
, struct peer
*peer
,
10592 afi_t afi
, safi_t safi
,
10593 enum bgp_show_type type
, bool use_json
)
10595 /* labeled-unicast routes live in the unicast table */
10596 if (safi
== SAFI_LABELED_UNICAST
)
10597 safi
= SAFI_UNICAST
;
10599 if (!peer
|| !peer
->afc
[afi
][safi
]) {
10601 json_object
*json_no
= NULL
;
10602 json_no
= json_object_new_object();
10603 json_object_string_add(
10604 json_no
, "warning",
10605 "No such neighbor or address family");
10606 vty_out(vty
, "%s\n",
10607 json_object_to_json_string(json_no
));
10608 json_object_free(json_no
);
10610 vty_out(vty
, "%% No such neighbor or address family\n");
10611 return CMD_WARNING
;
10614 return bgp_show(vty
, peer
->bgp
, afi
, safi
, type
, &peer
->su
, use_json
);
10617 DEFUN (show_ip_bgp_flowspec_routes_detailed
,
10618 show_ip_bgp_flowspec_routes_detailed_cmd
,
10619 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" flowspec] detail [json]",
10623 BGP_INSTANCE_HELP_STR
10626 "Detailed information on flowspec entries\n"
10629 afi_t afi
= AFI_IP
;
10630 safi_t safi
= SAFI_UNICAST
;
10631 struct bgp
*bgp
= NULL
;
10633 bool uj
= use_json(argc
, argv
);
10638 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
10641 return CMD_WARNING
;
10643 return bgp_show(vty
, bgp
, afi
, safi
, bgp_show_type_detail
, NULL
, uj
);
10646 DEFUN (show_ip_bgp_neighbor_routes
,
10647 show_ip_bgp_neighbor_routes_cmd
,
10648 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]] "
10649 "neighbors <A.B.C.D|X:X::X:X|WORD> <flap-statistics|dampened-routes|routes> [json]",
10653 BGP_INSTANCE_HELP_STR
10655 BGP_SAFI_WITH_LABEL_HELP_STR
10656 "Detailed information on TCP and BGP neighbor connections\n"
10657 "Neighbor to display information about\n"
10658 "Neighbor to display information about\n"
10659 "Neighbor on BGP configured interface\n"
10660 "Display flap statistics of the routes learned from neighbor\n"
10661 "Display the dampened routes received from neighbor\n"
10662 "Display routes learned from neighbor\n"
10665 char *peerstr
= NULL
;
10666 struct bgp
*bgp
= NULL
;
10667 afi_t afi
= AFI_IP6
;
10668 safi_t safi
= SAFI_UNICAST
;
10670 enum bgp_show_type sh_type
= bgp_show_type_neighbor
;
10672 bool uj
= use_json(argc
, argv
);
10677 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
10680 return CMD_WARNING
;
10682 /* neighbors <A.B.C.D|X:X::X:X|WORD> */
10683 argv_find(argv
, argc
, "neighbors", &idx
);
10684 peerstr
= argv
[++idx
]->arg
;
10686 peer
= peer_lookup_in_view(vty
, bgp
, peerstr
, uj
);
10688 return CMD_WARNING
;
10690 if (argv_find(argv
, argc
, "flap-statistics", &idx
))
10691 sh_type
= bgp_show_type_flap_neighbor
;
10692 else if (argv_find(argv
, argc
, "dampened-routes", &idx
))
10693 sh_type
= bgp_show_type_damp_neighbor
;
10694 else if (argv_find(argv
, argc
, "routes", &idx
))
10695 sh_type
= bgp_show_type_neighbor
;
10697 return bgp_show_neighbor_route(vty
, peer
, afi
, safi
, sh_type
, uj
);
10700 struct bgp_table
*bgp_distance_table
[AFI_MAX
][SAFI_MAX
];
10702 struct bgp_distance
{
10703 /* Distance value for the IP source prefix. */
10706 /* Name of the access-list to be matched. */
10710 DEFUN (show_bgp_afi_vpn_rd_route
,
10711 show_bgp_afi_vpn_rd_route_cmd
,
10712 "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]",
10716 "Address Family modifier\n"
10717 "Display information for a route distinguisher\n"
10718 "Route Distinguisher\n"
10719 "Network in the BGP routing table to display\n"
10720 "Network in the BGP routing table to display\n"
10724 struct prefix_rd prd
;
10725 afi_t afi
= AFI_MAX
;
10728 if (!argv_find_and_parse_afi(argv
, argc
, &idx
, &afi
)) {
10729 vty_out(vty
, "%% Malformed Address Family\n");
10730 return CMD_WARNING
;
10733 ret
= str2prefix_rd(argv
[5]->arg
, &prd
);
10735 vty_out(vty
, "%% Malformed Route Distinguisher\n");
10736 return CMD_WARNING
;
10739 return bgp_show_route(vty
, NULL
, argv
[6]->arg
, afi
, SAFI_MPLS_VPN
, &prd
,
10740 0, BGP_PATH_ALL
, use_json(argc
, argv
));
10743 static struct bgp_distance
*bgp_distance_new(void)
10745 return XCALLOC(MTYPE_BGP_DISTANCE
, sizeof(struct bgp_distance
));
10748 static void bgp_distance_free(struct bgp_distance
*bdistance
)
10750 XFREE(MTYPE_BGP_DISTANCE
, bdistance
);
10753 static int bgp_distance_set(struct vty
*vty
, const char *distance_str
,
10754 const char *ip_str
, const char *access_list_str
)
10761 struct bgp_node
*rn
;
10762 struct bgp_distance
*bdistance
;
10764 afi
= bgp_node_afi(vty
);
10765 safi
= bgp_node_safi(vty
);
10767 ret
= str2prefix(ip_str
, &p
);
10769 vty_out(vty
, "Malformed prefix\n");
10770 return CMD_WARNING_CONFIG_FAILED
;
10773 distance
= atoi(distance_str
);
10775 /* Get BGP distance node. */
10776 rn
= bgp_node_get(bgp_distance_table
[afi
][safi
], (struct prefix
*)&p
);
10777 bdistance
= bgp_distance_get_node(rn
);
10779 bgp_unlock_node(rn
);
10781 bdistance
= bgp_distance_new();
10782 bgp_distance_set_node_info(rn
, bdistance
);
10785 /* Set distance value. */
10786 bdistance
->distance
= distance
;
10788 /* Reset access-list configuration. */
10789 if (bdistance
->access_list
) {
10790 XFREE(MTYPE_AS_LIST
, bdistance
->access_list
);
10791 bdistance
->access_list
= NULL
;
10793 if (access_list_str
)
10794 bdistance
->access_list
=
10795 XSTRDUP(MTYPE_AS_LIST
, access_list_str
);
10797 return CMD_SUCCESS
;
10800 static int bgp_distance_unset(struct vty
*vty
, const char *distance_str
,
10801 const char *ip_str
, const char *access_list_str
)
10808 struct bgp_node
*rn
;
10809 struct bgp_distance
*bdistance
;
10811 afi
= bgp_node_afi(vty
);
10812 safi
= bgp_node_safi(vty
);
10814 ret
= str2prefix(ip_str
, &p
);
10816 vty_out(vty
, "Malformed prefix\n");
10817 return CMD_WARNING_CONFIG_FAILED
;
10820 rn
= bgp_node_lookup(bgp_distance_table
[afi
][safi
],
10821 (struct prefix
*)&p
);
10823 vty_out(vty
, "Can't find specified prefix\n");
10824 return CMD_WARNING_CONFIG_FAILED
;
10827 bdistance
= bgp_distance_get_node(rn
);
10828 distance
= atoi(distance_str
);
10830 if (bdistance
->distance
!= distance
) {
10831 vty_out(vty
, "Distance does not match configured\n");
10832 return CMD_WARNING_CONFIG_FAILED
;
10835 if (bdistance
->access_list
)
10836 XFREE(MTYPE_AS_LIST
, bdistance
->access_list
);
10837 bgp_distance_free(bdistance
);
10840 bgp_unlock_node(rn
);
10841 bgp_unlock_node(rn
);
10843 return CMD_SUCCESS
;
10846 /* Apply BGP information to distance method. */
10847 uint8_t bgp_distance_apply(struct prefix
*p
, struct bgp_info
*rinfo
, afi_t afi
,
10848 safi_t safi
, struct bgp
*bgp
)
10850 struct bgp_node
*rn
;
10853 struct bgp_distance
*bdistance
;
10854 struct access_list
*alist
;
10855 struct bgp_static
*bgp_static
;
10860 peer
= rinfo
->peer
;
10862 /* Check source address. */
10863 sockunion2hostprefix(&peer
->su
, &q
);
10864 rn
= bgp_node_match(bgp_distance_table
[afi
][safi
], &q
);
10866 bdistance
= bgp_distance_get_node(rn
);
10867 bgp_unlock_node(rn
);
10869 if (bdistance
->access_list
) {
10870 alist
= access_list_lookup(afi
, bdistance
->access_list
);
10872 && access_list_apply(alist
, p
) == FILTER_PERMIT
)
10873 return bdistance
->distance
;
10875 return bdistance
->distance
;
10878 /* Backdoor check. */
10879 rn
= bgp_node_lookup(bgp
->route
[afi
][safi
], p
);
10881 bgp_static
= bgp_static_get_node_info(rn
);
10882 bgp_unlock_node(rn
);
10884 if (bgp_static
->backdoor
) {
10885 if (bgp
->distance_local
[afi
][safi
])
10886 return bgp
->distance_local
[afi
][safi
];
10888 return ZEBRA_IBGP_DISTANCE_DEFAULT
;
10892 if (peer
->sort
== BGP_PEER_EBGP
) {
10893 if (bgp
->distance_ebgp
[afi
][safi
])
10894 return bgp
->distance_ebgp
[afi
][safi
];
10895 return ZEBRA_EBGP_DISTANCE_DEFAULT
;
10897 if (bgp
->distance_ibgp
[afi
][safi
])
10898 return bgp
->distance_ibgp
[afi
][safi
];
10899 return ZEBRA_IBGP_DISTANCE_DEFAULT
;
10903 DEFUN (bgp_distance
,
10905 "distance bgp (1-255) (1-255) (1-255)",
10906 "Define an administrative distance\n"
10908 "Distance for routes external to the AS\n"
10909 "Distance for routes internal to the AS\n"
10910 "Distance for local routes\n")
10912 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
10913 int idx_number
= 2;
10914 int idx_number_2
= 3;
10915 int idx_number_3
= 4;
10919 afi
= bgp_node_afi(vty
);
10920 safi
= bgp_node_safi(vty
);
10922 bgp
->distance_ebgp
[afi
][safi
] = atoi(argv
[idx_number
]->arg
);
10923 bgp
->distance_ibgp
[afi
][safi
] = atoi(argv
[idx_number_2
]->arg
);
10924 bgp
->distance_local
[afi
][safi
] = atoi(argv
[idx_number_3
]->arg
);
10925 return CMD_SUCCESS
;
10928 DEFUN (no_bgp_distance
,
10929 no_bgp_distance_cmd
,
10930 "no distance bgp [(1-255) (1-255) (1-255)]",
10932 "Define an administrative distance\n"
10934 "Distance for routes external to the AS\n"
10935 "Distance for routes internal to the AS\n"
10936 "Distance for local routes\n")
10938 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
10942 afi
= bgp_node_afi(vty
);
10943 safi
= bgp_node_safi(vty
);
10945 bgp
->distance_ebgp
[afi
][safi
] = 0;
10946 bgp
->distance_ibgp
[afi
][safi
] = 0;
10947 bgp
->distance_local
[afi
][safi
] = 0;
10948 return CMD_SUCCESS
;
10952 DEFUN (bgp_distance_source
,
10953 bgp_distance_source_cmd
,
10954 "distance (1-255) A.B.C.D/M",
10955 "Define an administrative distance\n"
10956 "Administrative distance\n"
10957 "IP source prefix\n")
10959 int idx_number
= 1;
10960 int idx_ipv4_prefixlen
= 2;
10961 bgp_distance_set(vty
, argv
[idx_number
]->arg
,
10962 argv
[idx_ipv4_prefixlen
]->arg
, NULL
);
10963 return CMD_SUCCESS
;
10966 DEFUN (no_bgp_distance_source
,
10967 no_bgp_distance_source_cmd
,
10968 "no distance (1-255) A.B.C.D/M",
10970 "Define an administrative distance\n"
10971 "Administrative distance\n"
10972 "IP source prefix\n")
10974 int idx_number
= 2;
10975 int idx_ipv4_prefixlen
= 3;
10976 bgp_distance_unset(vty
, argv
[idx_number
]->arg
,
10977 argv
[idx_ipv4_prefixlen
]->arg
, NULL
);
10978 return CMD_SUCCESS
;
10981 DEFUN (bgp_distance_source_access_list
,
10982 bgp_distance_source_access_list_cmd
,
10983 "distance (1-255) A.B.C.D/M WORD",
10984 "Define an administrative distance\n"
10985 "Administrative distance\n"
10986 "IP source prefix\n"
10987 "Access list name\n")
10989 int idx_number
= 1;
10990 int idx_ipv4_prefixlen
= 2;
10992 bgp_distance_set(vty
, argv
[idx_number
]->arg
,
10993 argv
[idx_ipv4_prefixlen
]->arg
, argv
[idx_word
]->arg
);
10994 return CMD_SUCCESS
;
10997 DEFUN (no_bgp_distance_source_access_list
,
10998 no_bgp_distance_source_access_list_cmd
,
10999 "no distance (1-255) A.B.C.D/M WORD",
11001 "Define an administrative distance\n"
11002 "Administrative distance\n"
11003 "IP source prefix\n"
11004 "Access list name\n")
11006 int idx_number
= 2;
11007 int idx_ipv4_prefixlen
= 3;
11009 bgp_distance_unset(vty
, argv
[idx_number
]->arg
,
11010 argv
[idx_ipv4_prefixlen
]->arg
, argv
[idx_word
]->arg
);
11011 return CMD_SUCCESS
;
11014 DEFUN (ipv6_bgp_distance_source
,
11015 ipv6_bgp_distance_source_cmd
,
11016 "distance (1-255) X:X::X:X/M",
11017 "Define an administrative distance\n"
11018 "Administrative distance\n"
11019 "IP source prefix\n")
11021 bgp_distance_set(vty
, argv
[1]->arg
, argv
[2]->arg
, NULL
);
11022 return CMD_SUCCESS
;
11025 DEFUN (no_ipv6_bgp_distance_source
,
11026 no_ipv6_bgp_distance_source_cmd
,
11027 "no distance (1-255) X:X::X:X/M",
11029 "Define an administrative distance\n"
11030 "Administrative distance\n"
11031 "IP source prefix\n")
11033 bgp_distance_unset(vty
, argv
[2]->arg
, argv
[3]->arg
, NULL
);
11034 return CMD_SUCCESS
;
11037 DEFUN (ipv6_bgp_distance_source_access_list
,
11038 ipv6_bgp_distance_source_access_list_cmd
,
11039 "distance (1-255) X:X::X:X/M WORD",
11040 "Define an administrative distance\n"
11041 "Administrative distance\n"
11042 "IP source prefix\n"
11043 "Access list name\n")
11045 bgp_distance_set(vty
, argv
[1]->arg
, argv
[2]->arg
, argv
[3]->arg
);
11046 return CMD_SUCCESS
;
11049 DEFUN (no_ipv6_bgp_distance_source_access_list
,
11050 no_ipv6_bgp_distance_source_access_list_cmd
,
11051 "no distance (1-255) X:X::X:X/M WORD",
11053 "Define an administrative distance\n"
11054 "Administrative distance\n"
11055 "IP source prefix\n"
11056 "Access list name\n")
11058 bgp_distance_unset(vty
, argv
[2]->arg
, argv
[3]->arg
, argv
[4]->arg
);
11059 return CMD_SUCCESS
;
11062 DEFUN (bgp_damp_set
,
11064 "bgp dampening [(1-45) [(1-20000) (1-20000) (1-255)]]",
11065 "BGP Specific commands\n"
11066 "Enable route-flap dampening\n"
11067 "Half-life time for the penalty\n"
11068 "Value to start reusing a route\n"
11069 "Value to start suppressing a route\n"
11070 "Maximum duration to suppress a stable route\n")
11072 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
11073 int idx_half_life
= 2;
11075 int idx_suppress
= 4;
11076 int idx_max_suppress
= 5;
11077 int half
= DEFAULT_HALF_LIFE
* 60;
11078 int reuse
= DEFAULT_REUSE
;
11079 int suppress
= DEFAULT_SUPPRESS
;
11080 int max
= 4 * half
;
11083 half
= atoi(argv
[idx_half_life
]->arg
) * 60;
11084 reuse
= atoi(argv
[idx_reuse
]->arg
);
11085 suppress
= atoi(argv
[idx_suppress
]->arg
);
11086 max
= atoi(argv
[idx_max_suppress
]->arg
) * 60;
11087 } else if (argc
== 3) {
11088 half
= atoi(argv
[idx_half_life
]->arg
) * 60;
11092 if (suppress
< reuse
) {
11094 "Suppress value cannot be less than reuse value \n");
11098 return bgp_damp_enable(bgp
, bgp_node_afi(vty
), bgp_node_safi(vty
), half
,
11099 reuse
, suppress
, max
);
11102 DEFUN (bgp_damp_unset
,
11103 bgp_damp_unset_cmd
,
11104 "no bgp dampening [(1-45) [(1-20000) (1-20000) (1-255)]]",
11106 "BGP Specific commands\n"
11107 "Enable route-flap dampening\n"
11108 "Half-life time for the penalty\n"
11109 "Value to start reusing a route\n"
11110 "Value to start suppressing a route\n"
11111 "Maximum duration to suppress a stable route\n")
11113 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
11114 return bgp_damp_disable(bgp
, bgp_node_afi(vty
), bgp_node_safi(vty
));
11117 /* Display specified route of BGP table. */
11118 static int bgp_clear_damp_route(struct vty
*vty
, const char *view_name
,
11119 const char *ip_str
, afi_t afi
, safi_t safi
,
11120 struct prefix_rd
*prd
, int prefix_check
)
11123 struct prefix match
;
11124 struct bgp_node
*rn
;
11125 struct bgp_node
*rm
;
11126 struct bgp_info
*ri
;
11127 struct bgp_info
*ri_temp
;
11129 struct bgp_table
*table
;
11131 /* BGP structure lookup. */
11133 bgp
= bgp_lookup_by_name(view_name
);
11135 vty_out(vty
, "%% Can't find BGP instance %s\n",
11137 return CMD_WARNING
;
11140 bgp
= bgp_get_default();
11142 vty_out(vty
, "%% No BGP process is configured\n");
11143 return CMD_WARNING
;
11147 /* Check IP address argument. */
11148 ret
= str2prefix(ip_str
, &match
);
11150 vty_out(vty
, "%% address is malformed\n");
11151 return CMD_WARNING
;
11154 match
.family
= afi2family(afi
);
11156 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_ENCAP
)
11157 || (safi
== SAFI_EVPN
)) {
11158 for (rn
= bgp_table_top(bgp
->rib
[AFI_IP
][safi
]); rn
;
11159 rn
= bgp_route_next(rn
)) {
11160 if (prd
&& memcmp(rn
->p
.u
.val
, prd
->val
, 8) != 0)
11162 if ((table
= rn
->info
) == NULL
)
11164 if ((rm
= bgp_node_match(table
, &match
)) == NULL
)
11168 || rm
->p
.prefixlen
== match
.prefixlen
) {
11171 if (ri
->extra
&& ri
->extra
->damp_info
) {
11172 ri_temp
= ri
->next
;
11173 bgp_damp_info_free(
11174 ri
->extra
->damp_info
,
11182 bgp_unlock_node(rm
);
11185 if ((rn
= bgp_node_match(bgp
->rib
[afi
][safi
], &match
))
11188 || rn
->p
.prefixlen
== match
.prefixlen
) {
11191 if (ri
->extra
&& ri
->extra
->damp_info
) {
11192 ri_temp
= ri
->next
;
11193 bgp_damp_info_free(
11194 ri
->extra
->damp_info
,
11202 bgp_unlock_node(rn
);
11206 return CMD_SUCCESS
;
11209 DEFUN (clear_ip_bgp_dampening
,
11210 clear_ip_bgp_dampening_cmd
,
11211 "clear ip bgp dampening",
11215 "Clear route flap dampening information\n")
11217 bgp_damp_info_clean();
11218 return CMD_SUCCESS
;
11221 DEFUN (clear_ip_bgp_dampening_prefix
,
11222 clear_ip_bgp_dampening_prefix_cmd
,
11223 "clear ip bgp dampening A.B.C.D/M",
11227 "Clear route flap dampening information\n"
11230 int idx_ipv4_prefixlen
= 4;
11231 return bgp_clear_damp_route(vty
, NULL
, argv
[idx_ipv4_prefixlen
]->arg
,
11232 AFI_IP
, SAFI_UNICAST
, NULL
, 1);
11235 DEFUN (clear_ip_bgp_dampening_address
,
11236 clear_ip_bgp_dampening_address_cmd
,
11237 "clear ip bgp dampening A.B.C.D",
11241 "Clear route flap dampening information\n"
11242 "Network to clear damping information\n")
11245 return bgp_clear_damp_route(vty
, NULL
, argv
[idx_ipv4
]->arg
, AFI_IP
,
11246 SAFI_UNICAST
, NULL
, 0);
11249 DEFUN (clear_ip_bgp_dampening_address_mask
,
11250 clear_ip_bgp_dampening_address_mask_cmd
,
11251 "clear ip bgp dampening A.B.C.D A.B.C.D",
11255 "Clear route flap dampening information\n"
11256 "Network to clear damping information\n"
11260 int idx_ipv4_2
= 5;
11262 char prefix_str
[BUFSIZ
];
11264 ret
= netmask_str2prefix_str(argv
[idx_ipv4
]->arg
, argv
[idx_ipv4_2
]->arg
,
11267 vty_out(vty
, "%% Inconsistent address and mask\n");
11268 return CMD_WARNING
;
11271 return bgp_clear_damp_route(vty
, NULL
, prefix_str
, AFI_IP
, SAFI_UNICAST
,
11275 /* also used for encap safi */
11276 static void bgp_config_write_network_vpn(struct vty
*vty
, struct bgp
*bgp
,
11277 afi_t afi
, safi_t safi
)
11279 struct bgp_node
*prn
;
11280 struct bgp_node
*rn
;
11281 struct bgp_table
*table
;
11283 struct prefix_rd
*prd
;
11284 struct bgp_static
*bgp_static
;
11285 mpls_label_t label
;
11286 char buf
[SU_ADDRSTRLEN
];
11287 char rdbuf
[RD_ADDRSTRLEN
];
11289 /* Network configuration. */
11290 for (prn
= bgp_table_top(bgp
->route
[afi
][safi
]); prn
;
11291 prn
= bgp_route_next(prn
)) {
11292 if ((table
= prn
->info
) == NULL
)
11295 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
)) {
11296 bgp_static
= bgp_static_get_node_info(rn
);
11297 if (bgp_static
== NULL
)
11301 prd
= (struct prefix_rd
*)&prn
->p
;
11303 /* "network" configuration display. */
11304 prefix_rd2str(prd
, rdbuf
, sizeof(rdbuf
));
11305 label
= decode_label(&bgp_static
->label
);
11307 vty_out(vty
, " network %s/%d rd %s",
11308 inet_ntop(p
->family
, &p
->u
.prefix
, buf
,
11310 p
->prefixlen
, rdbuf
);
11311 if (safi
== SAFI_MPLS_VPN
)
11312 vty_out(vty
, " label %u", label
);
11314 if (bgp_static
->rmap
.name
)
11315 vty_out(vty
, " route-map %s",
11316 bgp_static
->rmap
.name
);
11318 if (bgp_static
->backdoor
)
11319 vty_out(vty
, " backdoor");
11321 vty_out(vty
, "\n");
11326 static void bgp_config_write_network_evpn(struct vty
*vty
, struct bgp
*bgp
,
11327 afi_t afi
, safi_t safi
)
11329 struct bgp_node
*prn
;
11330 struct bgp_node
*rn
;
11331 struct bgp_table
*table
;
11333 struct prefix_rd
*prd
;
11334 struct bgp_static
*bgp_static
;
11335 char buf
[PREFIX_STRLEN
* 2];
11336 char buf2
[SU_ADDRSTRLEN
];
11337 char rdbuf
[RD_ADDRSTRLEN
];
11339 /* Network configuration. */
11340 for (prn
= bgp_table_top(bgp
->route
[afi
][safi
]); prn
;
11341 prn
= bgp_route_next(prn
)) {
11342 if ((table
= prn
->info
) == NULL
)
11345 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
)) {
11346 bgp_static
= bgp_static_get_node_info(rn
);
11347 if (bgp_static
== NULL
)
11350 char *macrouter
= NULL
;
11353 if (bgp_static
->router_mac
)
11354 macrouter
= prefix_mac2str(
11355 bgp_static
->router_mac
, NULL
, 0);
11356 if (bgp_static
->eth_s_id
)
11357 esi
= esi2str(bgp_static
->eth_s_id
);
11359 prd
= (struct prefix_rd
*)&prn
->p
;
11361 /* "network" configuration display. */
11362 prefix_rd2str(prd
, rdbuf
, sizeof(rdbuf
));
11363 if (p
->u
.prefix_evpn
.route_type
== 5) {
11364 char local_buf
[PREFIX_STRLEN
];
11365 uint8_t family
= is_evpn_prefix_ipaddr_v4((
11366 struct prefix_evpn
*)p
)
11370 &p
->u
.prefix_evpn
.prefix_addr
.ip
.ip
.addr
,
11371 local_buf
, PREFIX_STRLEN
);
11372 sprintf(buf
, "%s/%u", local_buf
,
11373 p
->u
.prefix_evpn
.prefix_addr
.ip_prefix_length
);
11375 prefix2str(p
, buf
, sizeof(buf
));
11378 if (bgp_static
->gatewayIp
.family
== AF_INET
11379 || bgp_static
->gatewayIp
.family
== AF_INET6
)
11380 inet_ntop(bgp_static
->gatewayIp
.family
,
11381 &bgp_static
->gatewayIp
.u
.prefix
, buf2
,
11384 " network %s rd %s ethtag %u label %u esi %s gwip %s routermac %s\n",
11386 p
->u
.prefix_evpn
.prefix_addr
.eth_tag
,
11387 decode_label(&bgp_static
->label
), esi
, buf2
,
11391 XFREE(MTYPE_TMP
, macrouter
);
11393 XFREE(MTYPE_TMP
, esi
);
11398 /* Configuration of static route announcement and aggregate
11400 void bgp_config_write_network(struct vty
*vty
, struct bgp
*bgp
, afi_t afi
,
11403 struct bgp_node
*rn
;
11405 struct bgp_static
*bgp_static
;
11406 struct bgp_aggregate
*bgp_aggregate
;
11407 char buf
[SU_ADDRSTRLEN
];
11409 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_ENCAP
)) {
11410 bgp_config_write_network_vpn(vty
, bgp
, afi
, safi
);
11414 if (afi
== AFI_L2VPN
&& safi
== SAFI_EVPN
) {
11415 bgp_config_write_network_evpn(vty
, bgp
, afi
, safi
);
11419 /* Network configuration. */
11420 for (rn
= bgp_table_top(bgp
->route
[afi
][safi
]); rn
;
11421 rn
= bgp_route_next(rn
)) {
11422 bgp_static
= bgp_static_get_node_info(rn
);
11423 if (bgp_static
== NULL
)
11428 /* "network" configuration display. */
11429 if (bgp_option_check(BGP_OPT_CONFIG_CISCO
) && afi
== AFI_IP
) {
11430 uint32_t destination
;
11431 struct in_addr netmask
;
11433 destination
= ntohl(p
->u
.prefix4
.s_addr
);
11434 masklen2ip(p
->prefixlen
, &netmask
);
11435 vty_out(vty
, " network %s",
11436 inet_ntop(p
->family
, &p
->u
.prefix
, buf
,
11439 if ((IN_CLASSC(destination
) && p
->prefixlen
== 24)
11440 || (IN_CLASSB(destination
) && p
->prefixlen
== 16)
11441 || (IN_CLASSA(destination
) && p
->prefixlen
== 8)
11442 || p
->u
.prefix4
.s_addr
== 0) {
11443 /* Natural mask is not display. */
11445 vty_out(vty
, " mask %s", inet_ntoa(netmask
));
11447 vty_out(vty
, " network %s/%d",
11448 inet_ntop(p
->family
, &p
->u
.prefix
, buf
,
11453 if (bgp_static
->label_index
!= BGP_INVALID_LABEL_INDEX
)
11454 vty_out(vty
, " label-index %u",
11455 bgp_static
->label_index
);
11457 if (bgp_static
->rmap
.name
)
11458 vty_out(vty
, " route-map %s", bgp_static
->rmap
.name
);
11460 if (bgp_static
->backdoor
)
11461 vty_out(vty
, " backdoor");
11463 vty_out(vty
, "\n");
11466 /* Aggregate-address configuration. */
11467 for (rn
= bgp_table_top(bgp
->aggregate
[afi
][safi
]); rn
;
11468 rn
= bgp_route_next(rn
)) {
11469 bgp_aggregate
= bgp_aggregate_get_node_info(rn
);
11470 if (bgp_aggregate
== NULL
)
11475 if (bgp_option_check(BGP_OPT_CONFIG_CISCO
) && afi
== AFI_IP
) {
11476 struct in_addr netmask
;
11478 masklen2ip(p
->prefixlen
, &netmask
);
11479 vty_out(vty
, " aggregate-address %s %s",
11480 inet_ntop(p
->family
, &p
->u
.prefix
, buf
,
11482 inet_ntoa(netmask
));
11484 vty_out(vty
, " aggregate-address %s/%d",
11485 inet_ntop(p
->family
, &p
->u
.prefix
, buf
,
11490 if (bgp_aggregate
->as_set
)
11491 vty_out(vty
, " as-set");
11493 if (bgp_aggregate
->summary_only
)
11494 vty_out(vty
, " summary-only");
11496 vty_out(vty
, "\n");
11500 void bgp_config_write_distance(struct vty
*vty
, struct bgp
*bgp
, afi_t afi
,
11503 struct bgp_node
*rn
;
11504 struct bgp_distance
*bdistance
;
11506 /* Distance configuration. */
11507 if (bgp
->distance_ebgp
[afi
][safi
] && bgp
->distance_ibgp
[afi
][safi
]
11508 && bgp
->distance_local
[afi
][safi
]
11509 && (bgp
->distance_ebgp
[afi
][safi
] != ZEBRA_EBGP_DISTANCE_DEFAULT
11510 || bgp
->distance_ibgp
[afi
][safi
] != ZEBRA_IBGP_DISTANCE_DEFAULT
11511 || bgp
->distance_local
[afi
][safi
]
11512 != ZEBRA_IBGP_DISTANCE_DEFAULT
)) {
11513 vty_out(vty
, " distance bgp %d %d %d\n",
11514 bgp
->distance_ebgp
[afi
][safi
],
11515 bgp
->distance_ibgp
[afi
][safi
],
11516 bgp
->distance_local
[afi
][safi
]);
11519 for (rn
= bgp_table_top(bgp_distance_table
[afi
][safi
]); rn
;
11520 rn
= bgp_route_next(rn
)) {
11521 bdistance
= bgp_distance_get_node(rn
);
11522 if (bdistance
!= NULL
) {
11523 char buf
[PREFIX_STRLEN
];
11525 vty_out(vty
, " distance %d %s %s\n",
11526 bdistance
->distance
,
11527 prefix2str(&rn
->p
, buf
, sizeof(buf
)),
11528 bdistance
->access_list
? bdistance
->access_list
11534 /* Allocate routing table structure and install commands. */
11535 void bgp_route_init(void)
11540 /* Init BGP distance table. */
11541 FOREACH_AFI_SAFI (afi
, safi
)
11542 bgp_distance_table
[afi
][safi
] = bgp_table_init(NULL
, afi
, safi
);
11544 /* IPv4 BGP commands. */
11545 install_element(BGP_NODE
, &bgp_table_map_cmd
);
11546 install_element(BGP_NODE
, &bgp_network_cmd
);
11547 install_element(BGP_NODE
, &no_bgp_table_map_cmd
);
11549 install_element(BGP_NODE
, &aggregate_address_cmd
);
11550 install_element(BGP_NODE
, &aggregate_address_mask_cmd
);
11551 install_element(BGP_NODE
, &no_aggregate_address_cmd
);
11552 install_element(BGP_NODE
, &no_aggregate_address_mask_cmd
);
11554 /* IPv4 unicast configuration. */
11555 install_element(BGP_IPV4_NODE
, &bgp_table_map_cmd
);
11556 install_element(BGP_IPV4_NODE
, &bgp_network_cmd
);
11557 install_element(BGP_IPV4_NODE
, &no_bgp_table_map_cmd
);
11559 install_element(BGP_IPV4_NODE
, &aggregate_address_cmd
);
11560 install_element(BGP_IPV4_NODE
, &aggregate_address_mask_cmd
);
11561 install_element(BGP_IPV4_NODE
, &no_aggregate_address_cmd
);
11562 install_element(BGP_IPV4_NODE
, &no_aggregate_address_mask_cmd
);
11564 /* IPv4 multicast configuration. */
11565 install_element(BGP_IPV4M_NODE
, &bgp_table_map_cmd
);
11566 install_element(BGP_IPV4M_NODE
, &bgp_network_cmd
);
11567 install_element(BGP_IPV4M_NODE
, &no_bgp_table_map_cmd
);
11568 install_element(BGP_IPV4M_NODE
, &aggregate_address_cmd
);
11569 install_element(BGP_IPV4M_NODE
, &aggregate_address_mask_cmd
);
11570 install_element(BGP_IPV4M_NODE
, &no_aggregate_address_cmd
);
11571 install_element(BGP_IPV4M_NODE
, &no_aggregate_address_mask_cmd
);
11573 /* IPv4 labeled-unicast configuration. */
11574 install_element(VIEW_NODE
, &show_ip_bgp_instance_all_cmd
);
11575 install_element(VIEW_NODE
, &show_ip_bgp_cmd
);
11576 install_element(VIEW_NODE
, &show_ip_bgp_json_cmd
);
11577 install_element(VIEW_NODE
, &show_ip_bgp_route_cmd
);
11578 install_element(VIEW_NODE
, &show_ip_bgp_regexp_cmd
);
11580 install_element(VIEW_NODE
,
11581 &show_ip_bgp_instance_neighbor_advertised_route_cmd
);
11582 install_element(VIEW_NODE
, &show_ip_bgp_neighbor_routes_cmd
);
11583 install_element(VIEW_NODE
,
11584 &show_ip_bgp_neighbor_received_prefix_filter_cmd
);
11585 #ifdef KEEP_OLD_VPN_COMMANDS
11586 install_element(VIEW_NODE
, &show_ip_bgp_vpn_all_route_prefix_cmd
);
11587 #endif /* KEEP_OLD_VPN_COMMANDS */
11588 install_element(VIEW_NODE
, &show_bgp_afi_vpn_rd_route_cmd
);
11589 install_element(VIEW_NODE
,
11590 &show_ip_bgp_l2vpn_evpn_all_route_prefix_cmd
);
11592 /* BGP dampening clear commands */
11593 install_element(ENABLE_NODE
, &clear_ip_bgp_dampening_cmd
);
11594 install_element(ENABLE_NODE
, &clear_ip_bgp_dampening_prefix_cmd
);
11596 install_element(ENABLE_NODE
, &clear_ip_bgp_dampening_address_cmd
);
11597 install_element(ENABLE_NODE
, &clear_ip_bgp_dampening_address_mask_cmd
);
11600 install_element(ENABLE_NODE
,
11601 &show_ip_bgp_instance_neighbor_prefix_counts_cmd
);
11602 #ifdef KEEP_OLD_VPN_COMMANDS
11603 install_element(ENABLE_NODE
,
11604 &show_ip_bgp_vpn_neighbor_prefix_counts_cmd
);
11605 #endif /* KEEP_OLD_VPN_COMMANDS */
11607 /* New config IPv6 BGP commands. */
11608 install_element(BGP_IPV6_NODE
, &bgp_table_map_cmd
);
11609 install_element(BGP_IPV6_NODE
, &ipv6_bgp_network_cmd
);
11610 install_element(BGP_IPV6_NODE
, &no_bgp_table_map_cmd
);
11612 install_element(BGP_IPV6_NODE
, &ipv6_aggregate_address_cmd
);
11613 install_element(BGP_IPV6_NODE
, &no_ipv6_aggregate_address_cmd
);
11615 install_element(BGP_IPV6M_NODE
, &ipv6_bgp_network_cmd
);
11617 install_element(BGP_NODE
, &bgp_distance_cmd
);
11618 install_element(BGP_NODE
, &no_bgp_distance_cmd
);
11619 install_element(BGP_NODE
, &bgp_distance_source_cmd
);
11620 install_element(BGP_NODE
, &no_bgp_distance_source_cmd
);
11621 install_element(BGP_NODE
, &bgp_distance_source_access_list_cmd
);
11622 install_element(BGP_NODE
, &no_bgp_distance_source_access_list_cmd
);
11623 install_element(BGP_IPV4_NODE
, &bgp_distance_cmd
);
11624 install_element(BGP_IPV4_NODE
, &no_bgp_distance_cmd
);
11625 install_element(BGP_IPV4_NODE
, &bgp_distance_source_cmd
);
11626 install_element(BGP_IPV4_NODE
, &no_bgp_distance_source_cmd
);
11627 install_element(BGP_IPV4_NODE
, &bgp_distance_source_access_list_cmd
);
11628 install_element(BGP_IPV4_NODE
, &no_bgp_distance_source_access_list_cmd
);
11629 install_element(BGP_IPV4M_NODE
, &bgp_distance_cmd
);
11630 install_element(BGP_IPV4M_NODE
, &no_bgp_distance_cmd
);
11631 install_element(BGP_IPV4M_NODE
, &bgp_distance_source_cmd
);
11632 install_element(BGP_IPV4M_NODE
, &no_bgp_distance_source_cmd
);
11633 install_element(BGP_IPV4M_NODE
, &bgp_distance_source_access_list_cmd
);
11634 install_element(BGP_IPV4M_NODE
,
11635 &no_bgp_distance_source_access_list_cmd
);
11636 install_element(BGP_IPV6_NODE
, &bgp_distance_cmd
);
11637 install_element(BGP_IPV6_NODE
, &no_bgp_distance_cmd
);
11638 install_element(BGP_IPV6_NODE
, &ipv6_bgp_distance_source_cmd
);
11639 install_element(BGP_IPV6_NODE
, &no_ipv6_bgp_distance_source_cmd
);
11640 install_element(BGP_IPV6_NODE
,
11641 &ipv6_bgp_distance_source_access_list_cmd
);
11642 install_element(BGP_IPV6_NODE
,
11643 &no_ipv6_bgp_distance_source_access_list_cmd
);
11644 install_element(BGP_IPV6M_NODE
, &bgp_distance_cmd
);
11645 install_element(BGP_IPV6M_NODE
, &no_bgp_distance_cmd
);
11646 install_element(BGP_IPV6M_NODE
, &ipv6_bgp_distance_source_cmd
);
11647 install_element(BGP_IPV6M_NODE
, &no_ipv6_bgp_distance_source_cmd
);
11648 install_element(BGP_IPV6M_NODE
,
11649 &ipv6_bgp_distance_source_access_list_cmd
);
11650 install_element(BGP_IPV6M_NODE
,
11651 &no_ipv6_bgp_distance_source_access_list_cmd
);
11653 install_element(BGP_NODE
, &bgp_damp_set_cmd
);
11654 install_element(BGP_NODE
, &bgp_damp_unset_cmd
);
11655 install_element(BGP_IPV4_NODE
, &bgp_damp_set_cmd
);
11656 install_element(BGP_IPV4_NODE
, &bgp_damp_unset_cmd
);
11658 /* IPv4 Multicast Mode */
11659 install_element(BGP_IPV4M_NODE
, &bgp_damp_set_cmd
);
11660 install_element(BGP_IPV4M_NODE
, &bgp_damp_unset_cmd
);
11662 /* Large Communities */
11663 install_element(VIEW_NODE
, &show_ip_bgp_large_community_list_cmd
);
11664 install_element(VIEW_NODE
, &show_ip_bgp_large_community_cmd
);
11666 /* show bgp ipv4 flowspec detailed */
11667 install_element(VIEW_NODE
, &show_ip_bgp_flowspec_routes_detailed_cmd
);
11671 void bgp_route_finish(void)
11676 FOREACH_AFI_SAFI (afi
, safi
) {
11677 bgp_table_unlock(bgp_distance_table
[afi
][safi
]);
11678 bgp_distance_table
[afi
][safi
] = NULL
;