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"
68 #include "bgpd/bgp_addpath.h"
69 #include "bgpd/bgp_mac.h"
72 #include "bgpd/rfapi/rfapi_backend.h"
73 #include "bgpd/rfapi/vnc_import_bgp.h"
74 #include "bgpd/rfapi/vnc_export_bgp.h"
76 #include "bgpd/bgp_encap_types.h"
77 #include "bgpd/bgp_encap_tlv.h"
78 #include "bgpd/bgp_evpn.h"
79 #include "bgpd/bgp_evpn_vty.h"
80 #include "bgpd/bgp_flowspec.h"
81 #include "bgpd/bgp_flowspec_util.h"
82 #include "bgpd/bgp_pbr.h"
84 #ifndef VTYSH_EXTRACT_PL
85 #include "bgpd/bgp_route_clippy.c"
88 /* Extern from bgp_dump.c */
89 extern const char *bgp_origin_str
[];
90 extern const char *bgp_origin_long_str
[];
93 #define PMSI_TNLTYPE_STR_NO_INFO "No info"
94 #define PMSI_TNLTYPE_STR_DEFAULT PMSI_TNLTYPE_STR_NO_INFO
95 static const struct message bgp_pmsi_tnltype_str
[] = {
96 {PMSI_TNLTYPE_NO_INFO
, PMSI_TNLTYPE_STR_NO_INFO
},
97 {PMSI_TNLTYPE_RSVP_TE_P2MP
, "RSVP-TE P2MP"},
98 {PMSI_TNLTYPE_MLDP_P2MP
, "mLDP P2MP"},
99 {PMSI_TNLTYPE_PIM_SSM
, "PIM-SSM"},
100 {PMSI_TNLTYPE_PIM_SM
, "PIM-SM"},
101 {PMSI_TNLTYPE_PIM_BIDIR
, "PIM-BIDIR"},
102 {PMSI_TNLTYPE_INGR_REPL
, "Ingress Replication"},
103 {PMSI_TNLTYPE_MLDP_MP2MP
, "mLDP MP2MP"},
107 #define VRFID_NONE_STR "-"
109 struct bgp_node
*bgp_afi_node_get(struct bgp_table
*table
, afi_t afi
,
110 safi_t safi
, struct prefix
*p
,
111 struct prefix_rd
*prd
)
114 struct bgp_node
*prn
= NULL
;
120 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_ENCAP
)
121 || (safi
== SAFI_EVPN
)) {
122 prn
= bgp_node_get(table
, (struct prefix
*)prd
);
124 if (!bgp_node_has_bgp_path_info_data(prn
))
125 bgp_node_set_bgp_table_info(
126 prn
, bgp_table_init(table
->bgp
, afi
, safi
));
128 bgp_unlock_node(prn
);
129 table
= bgp_node_get_bgp_table_info(prn
);
132 rn
= bgp_node_get(table
, p
);
134 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_ENCAP
)
135 || (safi
== SAFI_EVPN
))
141 struct bgp_node
*bgp_afi_node_lookup(struct bgp_table
*table
, afi_t afi
,
142 safi_t safi
, struct prefix
*p
,
143 struct prefix_rd
*prd
)
146 struct bgp_node
*prn
= NULL
;
151 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_ENCAP
)
152 || (safi
== SAFI_EVPN
)) {
153 prn
= bgp_node_lookup(table
, (struct prefix
*)prd
);
157 if (!bgp_node_has_bgp_path_info_data(prn
)) {
158 bgp_unlock_node(prn
);
162 table
= bgp_node_get_bgp_table_info(prn
);
165 rn
= bgp_node_lookup(table
, p
);
170 /* Allocate bgp_path_info_extra */
171 static struct bgp_path_info_extra
*bgp_path_info_extra_new(void)
173 struct bgp_path_info_extra
*new;
174 new = XCALLOC(MTYPE_BGP_ROUTE_EXTRA
,
175 sizeof(struct bgp_path_info_extra
));
176 new->label
[0] = MPLS_INVALID_LABEL
;
178 new->bgp_fs_pbr
= NULL
;
179 new->bgp_fs_iprule
= NULL
;
183 void bgp_path_info_extra_free(struct bgp_path_info_extra
**extra
)
185 struct bgp_path_info_extra
*e
;
187 if (!extra
|| !*extra
)
192 bgp_damp_info_free(e
->damp_info
, 0);
196 struct bgp_path_info
*bpi
= (struct bgp_path_info
*)e
->parent
;
199 /* FIXME: since multiple e may have the same e->parent
200 * and e->parent->net is holding a refcount for each
201 * of them, we need to do some fudging here.
203 * WARNING: if bpi->net->lock drops to 0, bpi may be
204 * freed as well (because bpi->net was holding the
205 * last reference to bpi) => write after free!
209 bpi
= bgp_path_info_lock(bpi
);
210 refcount
= bpi
->net
->lock
- 1;
211 bgp_unlock_node((struct bgp_node
*)bpi
->net
);
214 bgp_path_info_unlock(bpi
);
216 bgp_path_info_unlock(e
->parent
);
221 bgp_unlock(e
->bgp_orig
);
223 if ((*extra
)->bgp_fs_iprule
)
224 list_delete(&((*extra
)->bgp_fs_iprule
));
225 if ((*extra
)->bgp_fs_pbr
)
226 list_delete(&((*extra
)->bgp_fs_pbr
));
227 XFREE(MTYPE_BGP_ROUTE_EXTRA
, *extra
);
232 /* Get bgp_path_info extra information for the given bgp_path_info, lazy
233 * allocated if required.
235 struct bgp_path_info_extra
*bgp_path_info_extra_get(struct bgp_path_info
*pi
)
238 pi
->extra
= bgp_path_info_extra_new();
242 /* Free bgp route information. */
243 static void bgp_path_info_free(struct bgp_path_info
*path
)
246 bgp_attr_unintern(&path
->attr
);
248 bgp_unlink_nexthop(path
);
249 bgp_path_info_extra_free(&path
->extra
);
250 bgp_path_info_mpath_free(&path
->mpath
);
252 bgp_addpath_free_info_data(&path
->tx_addpath
,
253 &path
->net
->tx_addpath
);
255 peer_unlock(path
->peer
); /* bgp_path_info peer reference */
257 XFREE(MTYPE_BGP_ROUTE
, path
);
260 struct bgp_path_info
*bgp_path_info_lock(struct bgp_path_info
*path
)
266 struct bgp_path_info
*bgp_path_info_unlock(struct bgp_path_info
*path
)
268 assert(path
&& path
->lock
> 0);
271 if (path
->lock
== 0) {
273 zlog_debug ("%s: unlocked and freeing", __func__
);
274 zlog_backtrace (LOG_DEBUG
);
276 bgp_path_info_free(path
);
283 zlog_debug ("%s: unlocked to 1", __func__
);
284 zlog_backtrace (LOG_DEBUG
);
291 void bgp_path_info_add(struct bgp_node
*rn
, struct bgp_path_info
*pi
)
293 struct bgp_path_info
*top
;
295 top
= bgp_node_get_bgp_path_info(rn
);
301 bgp_node_set_bgp_path_info(rn
, pi
);
303 bgp_path_info_lock(pi
);
305 peer_lock(pi
->peer
); /* bgp_path_info peer reference */
308 /* Do the actual removal of info from RIB, for use by bgp_process
309 completion callback *only* */
310 void bgp_path_info_reap(struct bgp_node
*rn
, struct bgp_path_info
*pi
)
313 pi
->next
->prev
= pi
->prev
;
315 pi
->prev
->next
= pi
->next
;
317 bgp_node_set_bgp_path_info(rn
, pi
->next
);
319 bgp_path_info_mpath_dequeue(pi
);
320 bgp_path_info_unlock(pi
);
324 void bgp_path_info_delete(struct bgp_node
*rn
, struct bgp_path_info
*pi
)
326 bgp_path_info_set_flag(rn
, pi
, BGP_PATH_REMOVED
);
327 /* set of previous already took care of pcount */
328 UNSET_FLAG(pi
->flags
, BGP_PATH_VALID
);
331 /* undo the effects of a previous call to bgp_path_info_delete; typically
332 called when a route is deleted and then quickly re-added before the
333 deletion has been processed */
334 void bgp_path_info_restore(struct bgp_node
*rn
, struct bgp_path_info
*pi
)
336 bgp_path_info_unset_flag(rn
, pi
, BGP_PATH_REMOVED
);
337 /* unset of previous already took care of pcount */
338 SET_FLAG(pi
->flags
, BGP_PATH_VALID
);
341 /* Adjust pcount as required */
342 static void bgp_pcount_adjust(struct bgp_node
*rn
, struct bgp_path_info
*pi
)
344 struct bgp_table
*table
;
346 assert(rn
&& bgp_node_table(rn
));
347 assert(pi
&& pi
->peer
&& pi
->peer
->bgp
);
349 table
= bgp_node_table(rn
);
351 if (pi
->peer
== pi
->peer
->bgp
->peer_self
)
354 if (!BGP_PATH_COUNTABLE(pi
)
355 && CHECK_FLAG(pi
->flags
, BGP_PATH_COUNTED
)) {
357 UNSET_FLAG(pi
->flags
, BGP_PATH_COUNTED
);
359 /* slight hack, but more robust against errors. */
360 if (pi
->peer
->pcount
[table
->afi
][table
->safi
])
361 pi
->peer
->pcount
[table
->afi
][table
->safi
]--;
363 flog_err(EC_LIB_DEVELOPMENT
,
364 "Asked to decrement 0 prefix count for peer");
365 } else if (BGP_PATH_COUNTABLE(pi
)
366 && !CHECK_FLAG(pi
->flags
, BGP_PATH_COUNTED
)) {
367 SET_FLAG(pi
->flags
, BGP_PATH_COUNTED
);
368 pi
->peer
->pcount
[table
->afi
][table
->safi
]++;
372 static int bgp_label_index_differs(struct bgp_path_info
*pi1
,
373 struct bgp_path_info
*pi2
)
375 return (!(pi1
->attr
->label_index
== pi2
->attr
->label_index
));
378 /* Set/unset bgp_path_info flags, adjusting any other state as needed.
379 * This is here primarily to keep prefix-count in check.
381 void bgp_path_info_set_flag(struct bgp_node
*rn
, struct bgp_path_info
*pi
,
384 SET_FLAG(pi
->flags
, flag
);
386 /* early bath if we know it's not a flag that changes countability state
388 if (!CHECK_FLAG(flag
,
389 BGP_PATH_VALID
| BGP_PATH_HISTORY
| BGP_PATH_REMOVED
))
392 bgp_pcount_adjust(rn
, pi
);
395 void bgp_path_info_unset_flag(struct bgp_node
*rn
, struct bgp_path_info
*pi
,
398 UNSET_FLAG(pi
->flags
, flag
);
400 /* early bath if we know it's not a flag that changes countability state
402 if (!CHECK_FLAG(flag
,
403 BGP_PATH_VALID
| BGP_PATH_HISTORY
| BGP_PATH_REMOVED
))
406 bgp_pcount_adjust(rn
, pi
);
409 /* Get MED value. If MED value is missing and "bgp bestpath
410 missing-as-worst" is specified, treat it as the worst value. */
411 static uint32_t bgp_med_value(struct attr
*attr
, struct bgp
*bgp
)
413 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
))
416 if (bgp_flag_check(bgp
, BGP_FLAG_MED_MISSING_AS_WORST
))
423 void bgp_path_info_path_with_addpath_rx_str(struct bgp_path_info
*pi
, char *buf
)
425 if (pi
->addpath_rx_id
)
426 sprintf(buf
, "path %s (addpath rxid %d)", pi
->peer
->host
,
429 sprintf(buf
, "path %s", pi
->peer
->host
);
432 /* Compare two bgp route entity. If 'new' is preferable over 'exist' return 1.
434 static int bgp_path_info_cmp(struct bgp
*bgp
, struct bgp_path_info
*new,
435 struct bgp_path_info
*exist
, int *paths_eq
,
436 struct bgp_maxpaths_cfg
*mpath_cfg
, int debug
,
437 char *pfx_buf
, afi_t afi
, safi_t safi
)
439 struct attr
*newattr
, *existattr
;
440 bgp_peer_sort_t new_sort
;
441 bgp_peer_sort_t exist_sort
;
447 uint32_t exist_weight
;
448 uint32_t newm
, existm
;
449 struct in_addr new_id
;
450 struct in_addr exist_id
;
453 int internal_as_route
;
456 char new_buf
[PATH_ADDPATH_STR_BUFFER
];
457 char exist_buf
[PATH_ADDPATH_STR_BUFFER
];
459 uint32_t exist_mm_seq
;
467 zlog_debug("%s: new is NULL", pfx_buf
);
472 bgp_path_info_path_with_addpath_rx_str(new, new_buf
);
476 zlog_debug("%s: %s is the initial bestpath", pfx_buf
,
482 bgp_path_info_path_with_addpath_rx_str(exist
, exist_buf
);
483 zlog_debug("%s: Comparing %s flags 0x%x with %s flags 0x%x",
484 pfx_buf
, new_buf
, new->flags
, exist_buf
,
489 existattr
= exist
->attr
;
491 /* For EVPN routes, we cannot just go by local vs remote, we have to
492 * look at the MAC mobility sequence number, if present.
494 if (safi
== SAFI_EVPN
) {
495 /* This is an error condition described in RFC 7432 Section
497 * states that in this scenario "the PE MUST alert the operator"
499 * does not state what other action to take. In order to provide
501 * consistency in this scenario we are going to prefer the path
505 if (newattr
->sticky
!= existattr
->sticky
) {
507 prefix2str(&new->net
->p
, pfx_buf
,
509 * PREFIX2STR_BUFFER
);
510 bgp_path_info_path_with_addpath_rx_str(new,
512 bgp_path_info_path_with_addpath_rx_str(
516 if (newattr
->sticky
&& !existattr
->sticky
) {
519 "%s: %s wins over %s due to sticky MAC flag",
520 pfx_buf
, new_buf
, exist_buf
);
524 if (!newattr
->sticky
&& existattr
->sticky
) {
527 "%s: %s loses to %s due to sticky MAC flag",
528 pfx_buf
, new_buf
, exist_buf
);
533 new_mm_seq
= mac_mobility_seqnum(newattr
);
534 exist_mm_seq
= mac_mobility_seqnum(existattr
);
536 if (new_mm_seq
> exist_mm_seq
) {
539 "%s: %s wins over %s due to MM seq %u > %u",
540 pfx_buf
, new_buf
, exist_buf
, new_mm_seq
,
545 if (new_mm_seq
< exist_mm_seq
) {
548 "%s: %s loses to %s due to MM seq %u < %u",
549 pfx_buf
, new_buf
, exist_buf
, new_mm_seq
,
555 * if sequence numbers are the same path with the lowest IP
558 nh_cmp
= bgp_path_info_nexthop_cmp(new, exist
);
562 "%s: %s wins over %s due to same MM seq %u and lower IP %s",
563 pfx_buf
, new_buf
, exist_buf
, new_mm_seq
,
564 inet_ntoa(new->attr
->nexthop
));
570 "%s: %s loses to %s due to same MM seq %u and higher IP %s",
571 pfx_buf
, new_buf
, exist_buf
, new_mm_seq
,
572 inet_ntoa(new->attr
->nexthop
));
577 /* 1. Weight check. */
578 new_weight
= newattr
->weight
;
579 exist_weight
= existattr
->weight
;
581 if (new_weight
> exist_weight
) {
583 zlog_debug("%s: %s wins over %s due to weight %d > %d",
584 pfx_buf
, new_buf
, exist_buf
, new_weight
,
589 if (new_weight
< exist_weight
) {
591 zlog_debug("%s: %s loses to %s due to weight %d < %d",
592 pfx_buf
, new_buf
, exist_buf
, new_weight
,
597 /* 2. Local preference check. */
598 new_pref
= exist_pref
= bgp
->default_local_pref
;
600 if (newattr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
))
601 new_pref
= newattr
->local_pref
;
602 if (existattr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
))
603 exist_pref
= existattr
->local_pref
;
605 if (new_pref
> exist_pref
) {
608 "%s: %s wins over %s due to localpref %d > %d",
609 pfx_buf
, new_buf
, exist_buf
, new_pref
,
614 if (new_pref
< exist_pref
) {
617 "%s: %s loses to %s due to localpref %d < %d",
618 pfx_buf
, new_buf
, exist_buf
, new_pref
,
623 /* 3. Local route check. We prefer:
625 * - BGP_ROUTE_AGGREGATE
626 * - BGP_ROUTE_REDISTRIBUTE
628 if (!(new->sub_type
== BGP_ROUTE_NORMAL
||
629 new->sub_type
== BGP_ROUTE_IMPORTED
)) {
632 "%s: %s wins over %s due to preferred BGP_ROUTE type",
633 pfx_buf
, new_buf
, exist_buf
);
637 if (!(exist
->sub_type
== BGP_ROUTE_NORMAL
||
638 exist
->sub_type
== BGP_ROUTE_IMPORTED
)) {
641 "%s: %s loses to %s due to preferred BGP_ROUTE type",
642 pfx_buf
, new_buf
, exist_buf
);
646 /* 4. AS path length check. */
647 if (!bgp_flag_check(bgp
, BGP_FLAG_ASPATH_IGNORE
)) {
648 int exist_hops
= aspath_count_hops(existattr
->aspath
);
649 int exist_confeds
= aspath_count_confeds(existattr
->aspath
);
651 if (bgp_flag_check(bgp
, BGP_FLAG_ASPATH_CONFED
)) {
654 aspath_hops
= aspath_count_hops(newattr
->aspath
);
655 aspath_hops
+= aspath_count_confeds(newattr
->aspath
);
657 if (aspath_hops
< (exist_hops
+ exist_confeds
)) {
660 "%s: %s wins over %s due to aspath (with confeds) hopcount %d < %d",
661 pfx_buf
, new_buf
, exist_buf
,
663 (exist_hops
+ exist_confeds
));
667 if (aspath_hops
> (exist_hops
+ exist_confeds
)) {
670 "%s: %s loses to %s due to aspath (with confeds) hopcount %d > %d",
671 pfx_buf
, new_buf
, exist_buf
,
673 (exist_hops
+ exist_confeds
));
677 int newhops
= aspath_count_hops(newattr
->aspath
);
679 if (newhops
< exist_hops
) {
682 "%s: %s wins over %s due to aspath hopcount %d < %d",
683 pfx_buf
, new_buf
, exist_buf
,
684 newhops
, exist_hops
);
688 if (newhops
> exist_hops
) {
691 "%s: %s loses to %s due to aspath hopcount %d > %d",
692 pfx_buf
, new_buf
, exist_buf
,
693 newhops
, exist_hops
);
699 /* 5. Origin check. */
700 if (newattr
->origin
< existattr
->origin
) {
702 zlog_debug("%s: %s wins over %s due to ORIGIN %s < %s",
703 pfx_buf
, new_buf
, exist_buf
,
704 bgp_origin_long_str
[newattr
->origin
],
705 bgp_origin_long_str
[existattr
->origin
]);
709 if (newattr
->origin
> existattr
->origin
) {
711 zlog_debug("%s: %s loses to %s due to ORIGIN %s > %s",
712 pfx_buf
, new_buf
, exist_buf
,
713 bgp_origin_long_str
[newattr
->origin
],
714 bgp_origin_long_str
[existattr
->origin
]);
719 internal_as_route
= (aspath_count_hops(newattr
->aspath
) == 0
720 && aspath_count_hops(existattr
->aspath
) == 0);
721 confed_as_route
= (aspath_count_confeds(newattr
->aspath
) > 0
722 && aspath_count_confeds(existattr
->aspath
) > 0
723 && aspath_count_hops(newattr
->aspath
) == 0
724 && aspath_count_hops(existattr
->aspath
) == 0);
726 if (bgp_flag_check(bgp
, BGP_FLAG_ALWAYS_COMPARE_MED
)
727 || (bgp_flag_check(bgp
, BGP_FLAG_MED_CONFED
) && confed_as_route
)
728 || aspath_cmp_left(newattr
->aspath
, existattr
->aspath
)
729 || aspath_cmp_left_confed(newattr
->aspath
, existattr
->aspath
)
730 || internal_as_route
) {
731 new_med
= bgp_med_value(new->attr
, bgp
);
732 exist_med
= bgp_med_value(exist
->attr
, bgp
);
734 if (new_med
< exist_med
) {
737 "%s: %s wins over %s due to MED %d < %d",
738 pfx_buf
, new_buf
, exist_buf
, new_med
,
743 if (new_med
> exist_med
) {
746 "%s: %s loses to %s due to MED %d > %d",
747 pfx_buf
, new_buf
, exist_buf
, new_med
,
753 /* 7. Peer type check. */
754 new_sort
= new->peer
->sort
;
755 exist_sort
= exist
->peer
->sort
;
757 if (new_sort
== BGP_PEER_EBGP
758 && (exist_sort
== BGP_PEER_IBGP
|| exist_sort
== BGP_PEER_CONFED
)) {
761 "%s: %s wins over %s due to eBGP peer > iBGP peer",
762 pfx_buf
, new_buf
, exist_buf
);
766 if (exist_sort
== BGP_PEER_EBGP
767 && (new_sort
== BGP_PEER_IBGP
|| new_sort
== BGP_PEER_CONFED
)) {
770 "%s: %s loses to %s due to iBGP peer < eBGP peer",
771 pfx_buf
, new_buf
, exist_buf
);
775 /* 8. IGP metric check. */
779 newm
= new->extra
->igpmetric
;
781 existm
= exist
->extra
->igpmetric
;
786 "%s: %s wins over %s due to IGP metric %d < %d",
787 pfx_buf
, new_buf
, exist_buf
, newm
, existm
);
794 "%s: %s loses to %s due to IGP metric %d > %d",
795 pfx_buf
, new_buf
, exist_buf
, newm
, existm
);
799 /* 9. Same IGP metric. Compare the cluster list length as
800 representative of IGP hops metric. Rewrite the metric value
801 pair (newm, existm) with the cluster list length. Prefer the
802 path with smaller cluster list length. */
803 if (newm
== existm
) {
804 if (peer_sort(new->peer
) == BGP_PEER_IBGP
805 && peer_sort(exist
->peer
) == BGP_PEER_IBGP
806 && (mpath_cfg
== NULL
808 mpath_cfg
->ibgp_flags
,
809 BGP_FLAG_IBGP_MULTIPATH_SAME_CLUSTERLEN
))) {
810 newm
= BGP_CLUSTER_LIST_LENGTH(new->attr
);
811 existm
= BGP_CLUSTER_LIST_LENGTH(exist
->attr
);
816 "%s: %s wins over %s due to CLUSTER_LIST length %d < %d",
817 pfx_buf
, new_buf
, exist_buf
,
825 "%s: %s loses to %s due to CLUSTER_LIST length %d > %d",
826 pfx_buf
, new_buf
, exist_buf
,
833 /* 10. confed-external vs. confed-internal */
834 if (CHECK_FLAG(bgp
->config
, BGP_CONFIG_CONFEDERATION
)) {
835 if (new_sort
== BGP_PEER_CONFED
836 && exist_sort
== BGP_PEER_IBGP
) {
839 "%s: %s wins over %s due to confed-external peer > confed-internal peer",
840 pfx_buf
, new_buf
, exist_buf
);
844 if (exist_sort
== BGP_PEER_CONFED
845 && new_sort
== BGP_PEER_IBGP
) {
848 "%s: %s loses to %s due to confed-internal peer < confed-external peer",
849 pfx_buf
, new_buf
, exist_buf
);
854 /* 11. Maximum path check. */
855 if (newm
== existm
) {
856 /* If one path has a label but the other does not, do not treat
857 * them as equals for multipath
859 if ((new->extra
&&bgp_is_valid_label(&new->extra
->label
[0]))
861 && bgp_is_valid_label(&exist
->extra
->label
[0]))) {
864 "%s: %s and %s cannot be multipath, one has a label while the other does not",
865 pfx_buf
, new_buf
, exist_buf
);
866 } else if (bgp_flag_check(bgp
,
867 BGP_FLAG_ASPATH_MULTIPATH_RELAX
)) {
870 * For the two paths, all comparison steps till IGP
872 * have succeeded - including AS_PATH hop count. Since
874 * bestpath as-path multipath-relax' knob is on, we
876 * an exact match of AS_PATH. Thus, mark the paths are
878 * That will trigger both these paths to get into the
886 "%s: %s and %s are equal via multipath-relax",
887 pfx_buf
, new_buf
, exist_buf
);
888 } else if (new->peer
->sort
== BGP_PEER_IBGP
) {
889 if (aspath_cmp(new->attr
->aspath
,
890 exist
->attr
->aspath
)) {
895 "%s: %s and %s are equal via matching aspaths",
896 pfx_buf
, new_buf
, exist_buf
);
898 } else if (new->peer
->as
== exist
->peer
->as
) {
903 "%s: %s and %s are equal via same remote-as",
904 pfx_buf
, new_buf
, exist_buf
);
908 * TODO: If unequal cost ibgp multipath is enabled we can
909 * mark the paths as equal here instead of returning
914 "%s: %s wins over %s after IGP metric comparison",
915 pfx_buf
, new_buf
, exist_buf
);
918 "%s: %s loses to %s after IGP metric comparison",
919 pfx_buf
, new_buf
, exist_buf
);
924 /* 12. If both paths are external, prefer the path that was received
925 first (the oldest one). This step minimizes route-flap, since a
926 newer path won't displace an older one, even if it was the
927 preferred route based on the additional decision criteria below. */
928 if (!bgp_flag_check(bgp
, BGP_FLAG_COMPARE_ROUTER_ID
)
929 && new_sort
== BGP_PEER_EBGP
&& exist_sort
== BGP_PEER_EBGP
) {
930 if (CHECK_FLAG(new->flags
, BGP_PATH_SELECTED
)) {
933 "%s: %s wins over %s due to oldest external",
934 pfx_buf
, new_buf
, exist_buf
);
938 if (CHECK_FLAG(exist
->flags
, BGP_PATH_SELECTED
)) {
941 "%s: %s loses to %s due to oldest external",
942 pfx_buf
, new_buf
, exist_buf
);
947 /* 13. Router-ID comparision. */
948 /* If one of the paths is "stale", the corresponding peer router-id will
949 * be 0 and would always win over the other path. If originator id is
950 * used for the comparision, it will decide which path is better.
952 if (newattr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID
))
953 new_id
.s_addr
= newattr
->originator_id
.s_addr
;
955 new_id
.s_addr
= new->peer
->remote_id
.s_addr
;
956 if (existattr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID
))
957 exist_id
.s_addr
= existattr
->originator_id
.s_addr
;
959 exist_id
.s_addr
= exist
->peer
->remote_id
.s_addr
;
961 if (ntohl(new_id
.s_addr
) < ntohl(exist_id
.s_addr
)) {
964 "%s: %s wins over %s due to Router-ID comparison",
965 pfx_buf
, new_buf
, exist_buf
);
969 if (ntohl(new_id
.s_addr
) > ntohl(exist_id
.s_addr
)) {
972 "%s: %s loses to %s due to Router-ID comparison",
973 pfx_buf
, new_buf
, exist_buf
);
977 /* 14. Cluster length comparision. */
978 new_cluster
= BGP_CLUSTER_LIST_LENGTH(new->attr
);
979 exist_cluster
= BGP_CLUSTER_LIST_LENGTH(exist
->attr
);
981 if (new_cluster
< exist_cluster
) {
984 "%s: %s wins over %s due to CLUSTER_LIST length %d < %d",
985 pfx_buf
, new_buf
, exist_buf
, new_cluster
,
990 if (new_cluster
> exist_cluster
) {
993 "%s: %s loses to %s due to CLUSTER_LIST length %d > %d",
994 pfx_buf
, new_buf
, exist_buf
, new_cluster
,
999 /* 15. Neighbor address comparision. */
1000 /* Do this only if neither path is "stale" as stale paths do not have
1001 * valid peer information (as the connection may or may not be up).
1003 if (CHECK_FLAG(exist
->flags
, BGP_PATH_STALE
)) {
1006 "%s: %s wins over %s due to latter path being STALE",
1007 pfx_buf
, new_buf
, exist_buf
);
1011 if (CHECK_FLAG(new->flags
, BGP_PATH_STALE
)) {
1014 "%s: %s loses to %s due to former path being STALE",
1015 pfx_buf
, new_buf
, exist_buf
);
1019 /* locally configured routes to advertise do not have su_remote */
1020 if (new->peer
->su_remote
== NULL
)
1022 if (exist
->peer
->su_remote
== NULL
)
1025 ret
= sockunion_cmp(new->peer
->su_remote
, exist
->peer
->su_remote
);
1030 "%s: %s loses to %s due to Neighor IP comparison",
1031 pfx_buf
, new_buf
, exist_buf
);
1038 "%s: %s wins over %s due to Neighor IP comparison",
1039 pfx_buf
, new_buf
, exist_buf
);
1044 zlog_debug("%s: %s wins over %s due to nothing left to compare",
1045 pfx_buf
, new_buf
, exist_buf
);
1050 /* Compare two bgp route entity. Return -1 if new is preferred, 1 if exist
1051 * is preferred, or 0 if they are the same (usually will only occur if
1052 * multipath is enabled
1053 * This version is compatible with */
1054 int bgp_path_info_cmp_compatible(struct bgp
*bgp
, struct bgp_path_info
*new,
1055 struct bgp_path_info
*exist
, char *pfx_buf
,
1056 afi_t afi
, safi_t safi
)
1060 ret
= bgp_path_info_cmp(bgp
, new, exist
, &paths_eq
, NULL
, 0, pfx_buf
,
1074 static enum filter_type
bgp_input_filter(struct peer
*peer
, struct prefix
*p
,
1075 struct attr
*attr
, afi_t afi
,
1078 struct bgp_filter
*filter
;
1080 filter
= &peer
->filter
[afi
][safi
];
1082 #define FILTER_EXIST_WARN(F, f, filter) \
1083 if (BGP_DEBUG(update, UPDATE_IN) && !(F##_IN(filter))) \
1084 zlog_debug("%s: Could not find configured input %s-list %s!", \
1085 peer->host, #f, F##_IN_NAME(filter));
1087 if (DISTRIBUTE_IN_NAME(filter
)) {
1088 FILTER_EXIST_WARN(DISTRIBUTE
, distribute
, filter
);
1090 if (access_list_apply(DISTRIBUTE_IN(filter
), p
) == FILTER_DENY
)
1094 if (PREFIX_LIST_IN_NAME(filter
)) {
1095 FILTER_EXIST_WARN(PREFIX_LIST
, prefix
, filter
);
1097 if (prefix_list_apply(PREFIX_LIST_IN(filter
), p
) == PREFIX_DENY
)
1101 if (FILTER_LIST_IN_NAME(filter
)) {
1102 FILTER_EXIST_WARN(FILTER_LIST
, as
, filter
);
1104 if (as_list_apply(FILTER_LIST_IN(filter
), attr
->aspath
)
1109 return FILTER_PERMIT
;
1110 #undef FILTER_EXIST_WARN
1113 static enum filter_type
bgp_output_filter(struct peer
*peer
, struct prefix
*p
,
1114 struct attr
*attr
, afi_t afi
,
1117 struct bgp_filter
*filter
;
1119 filter
= &peer
->filter
[afi
][safi
];
1121 #define FILTER_EXIST_WARN(F, f, filter) \
1122 if (BGP_DEBUG(update, UPDATE_OUT) && !(F##_OUT(filter))) \
1123 zlog_debug("%s: Could not find configured output %s-list %s!", \
1124 peer->host, #f, F##_OUT_NAME(filter));
1126 if (DISTRIBUTE_OUT_NAME(filter
)) {
1127 FILTER_EXIST_WARN(DISTRIBUTE
, distribute
, filter
);
1129 if (access_list_apply(DISTRIBUTE_OUT(filter
), p
) == FILTER_DENY
)
1133 if (PREFIX_LIST_OUT_NAME(filter
)) {
1134 FILTER_EXIST_WARN(PREFIX_LIST
, prefix
, filter
);
1136 if (prefix_list_apply(PREFIX_LIST_OUT(filter
), p
)
1141 if (FILTER_LIST_OUT_NAME(filter
)) {
1142 FILTER_EXIST_WARN(FILTER_LIST
, as
, filter
);
1144 if (as_list_apply(FILTER_LIST_OUT(filter
), attr
->aspath
)
1149 return FILTER_PERMIT
;
1150 #undef FILTER_EXIST_WARN
1153 /* If community attribute includes no_export then return 1. */
1154 static int bgp_community_filter(struct peer
*peer
, struct attr
*attr
)
1156 if (attr
->community
) {
1157 /* NO_ADVERTISE check. */
1158 if (community_include(attr
->community
, COMMUNITY_NO_ADVERTISE
))
1161 /* NO_EXPORT check. */
1162 if (peer
->sort
== BGP_PEER_EBGP
1163 && community_include(attr
->community
, COMMUNITY_NO_EXPORT
))
1166 /* NO_EXPORT_SUBCONFED check. */
1167 if (peer
->sort
== BGP_PEER_EBGP
1168 || peer
->sort
== BGP_PEER_CONFED
)
1169 if (community_include(attr
->community
,
1170 COMMUNITY_NO_EXPORT_SUBCONFED
))
1176 /* Route reflection loop check. */
1177 static int bgp_cluster_filter(struct peer
*peer
, struct attr
*attr
)
1179 struct in_addr cluster_id
;
1181 if (attr
->cluster
) {
1182 if (peer
->bgp
->config
& BGP_CONFIG_CLUSTER_ID
)
1183 cluster_id
= peer
->bgp
->cluster_id
;
1185 cluster_id
= peer
->bgp
->router_id
;
1187 if (cluster_loop_check(attr
->cluster
, cluster_id
))
1193 static int bgp_input_modifier(struct peer
*peer
, struct prefix
*p
,
1194 struct attr
*attr
, afi_t afi
, safi_t safi
,
1195 const char *rmap_name
)
1197 struct bgp_filter
*filter
;
1198 struct bgp_path_info rmap_path
;
1199 route_map_result_t ret
;
1200 struct route_map
*rmap
= NULL
;
1202 filter
= &peer
->filter
[afi
][safi
];
1204 /* Apply default weight value. */
1205 if (peer
->weight
[afi
][safi
])
1206 attr
->weight
= peer
->weight
[afi
][safi
];
1209 rmap
= route_map_lookup_by_name(rmap_name
);
1214 if (ROUTE_MAP_IN_NAME(filter
)) {
1215 rmap
= ROUTE_MAP_IN(filter
);
1222 /* RFC 8212 to prevent route leaks.
1223 * This specification intends to improve this situation by requiring the
1224 * explicit configuration of both BGP Import and Export Policies for any
1225 * External BGP (EBGP) session such as customers, peers, or
1226 * confederation boundaries for all enabled address families. Through
1227 * codification of the aforementioned requirement, operators will
1228 * benefit from consistent behavior across different BGP
1231 if (peer
->bgp
->ebgp_requires_policy
1232 == DEFAULT_EBGP_POLICY_ENABLED
)
1233 if (!bgp_inbound_policy_exists(peer
, filter
))
1236 /* Route map apply. */
1238 memset(&rmap_path
, 0, sizeof(struct bgp_path_info
));
1239 /* Duplicate current value to new strucutre for modification. */
1240 rmap_path
.peer
= peer
;
1241 rmap_path
.attr
= attr
;
1243 SET_FLAG(peer
->rmap_type
, PEER_RMAP_TYPE_IN
);
1245 /* Apply BGP route map to the attribute. */
1246 ret
= route_map_apply(rmap
, p
, RMAP_BGP
, &rmap_path
);
1248 peer
->rmap_type
= 0;
1250 if (ret
== RMAP_DENYMATCH
)
1256 static int bgp_output_modifier(struct peer
*peer
, struct prefix
*p
,
1257 struct attr
*attr
, afi_t afi
, safi_t safi
,
1258 const char *rmap_name
)
1260 struct bgp_path_info rmap_path
;
1261 route_map_result_t ret
;
1262 struct route_map
*rmap
= NULL
;
1266 * So if we get to this point and have no rmap_name
1267 * we want to just show the output as it currently
1273 /* Apply default weight value. */
1274 if (peer
->weight
[afi
][safi
])
1275 attr
->weight
= peer
->weight
[afi
][safi
];
1277 rmap
= route_map_lookup_by_name(rmap_name
);
1280 * If we have a route map name and we do not find
1281 * the routemap that means we have an implicit
1287 memset(&rmap_path
, 0, sizeof(struct bgp_path_info
));
1288 /* Route map apply. */
1289 /* Duplicate current value to new strucutre for modification. */
1290 rmap_path
.peer
= peer
;
1291 rmap_path
.attr
= attr
;
1293 rmap_type
= peer
->rmap_type
;
1294 SET_FLAG(peer
->rmap_type
, PEER_RMAP_TYPE_OUT
);
1296 /* Apply BGP route map to the attribute. */
1297 ret
= route_map_apply(rmap
, p
, RMAP_BGP
, &rmap_path
);
1299 peer
->rmap_type
= rmap_type
;
1301 if (ret
== RMAP_DENYMATCH
)
1303 * caller has multiple error paths with bgp_attr_flush()
1310 /* If this is an EBGP peer with remove-private-AS */
1311 static void bgp_peer_remove_private_as(struct bgp
*bgp
, afi_t afi
, safi_t safi
,
1312 struct peer
*peer
, struct attr
*attr
)
1314 if (peer
->sort
== BGP_PEER_EBGP
1315 && (peer_af_flag_check(peer
, afi
, safi
,
1316 PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE
)
1317 || peer_af_flag_check(peer
, afi
, safi
,
1318 PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE
)
1319 || peer_af_flag_check(peer
, afi
, safi
,
1320 PEER_FLAG_REMOVE_PRIVATE_AS_ALL
)
1321 || peer_af_flag_check(peer
, afi
, safi
,
1322 PEER_FLAG_REMOVE_PRIVATE_AS
))) {
1323 // Take action on the entire aspath
1324 if (peer_af_flag_check(peer
, afi
, safi
,
1325 PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE
)
1326 || peer_af_flag_check(peer
, afi
, safi
,
1327 PEER_FLAG_REMOVE_PRIVATE_AS_ALL
)) {
1328 if (peer_af_flag_check(
1330 PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE
))
1331 attr
->aspath
= aspath_replace_private_asns(
1332 attr
->aspath
, bgp
->as
);
1334 // The entire aspath consists of private ASNs so create
1336 else if (aspath_private_as_check(attr
->aspath
))
1337 attr
->aspath
= aspath_empty_get();
1339 // There are some public and some private ASNs, remove
1342 attr
->aspath
= aspath_remove_private_asns(
1346 // 'all' was not specified so the entire aspath must be private
1348 // for us to do anything
1349 else if (aspath_private_as_check(attr
->aspath
)) {
1350 if (peer_af_flag_check(
1352 PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE
))
1353 attr
->aspath
= aspath_replace_private_asns(
1354 attr
->aspath
, bgp
->as
);
1356 attr
->aspath
= aspath_empty_get();
1361 /* If this is an EBGP peer with as-override */
1362 static void bgp_peer_as_override(struct bgp
*bgp
, afi_t afi
, safi_t safi
,
1363 struct peer
*peer
, struct attr
*attr
)
1365 if (peer
->sort
== BGP_PEER_EBGP
1366 && peer_af_flag_check(peer
, afi
, safi
, PEER_FLAG_AS_OVERRIDE
)) {
1367 if (aspath_single_asn_check(attr
->aspath
, peer
->as
))
1368 attr
->aspath
= aspath_replace_specific_asn(
1369 attr
->aspath
, peer
->as
, bgp
->as
);
1373 void bgp_attr_add_gshut_community(struct attr
*attr
)
1375 struct community
*old
;
1376 struct community
*new;
1377 struct community
*merge
;
1378 struct community
*gshut
;
1380 old
= attr
->community
;
1381 gshut
= community_str2com("graceful-shutdown");
1386 merge
= community_merge(community_dup(old
), gshut
);
1388 if (old
->refcnt
== 0)
1389 community_free(&old
);
1391 new = community_uniq_sort(merge
);
1392 community_free(&merge
);
1394 new = community_dup(gshut
);
1397 community_free(&gshut
);
1398 attr
->community
= new;
1399 attr
->flag
|= ATTR_FLAG_BIT(BGP_ATTR_COMMUNITIES
);
1401 /* When we add the graceful-shutdown community we must also
1402 * lower the local-preference */
1403 attr
->flag
|= ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
);
1404 attr
->local_pref
= BGP_GSHUT_LOCAL_PREF
;
1408 static void subgroup_announce_reset_nhop(uint8_t family
, struct attr
*attr
)
1410 if (family
== AF_INET
) {
1411 attr
->nexthop
.s_addr
= 0;
1412 attr
->mp_nexthop_global_in
.s_addr
= 0;
1414 if (family
== AF_INET6
)
1415 memset(&attr
->mp_nexthop_global
, 0, IPV6_MAX_BYTELEN
);
1416 if (family
== AF_EVPN
)
1417 memset(&attr
->mp_nexthop_global_in
, 0, BGP_ATTR_NHLEN_IPV4
);
1420 int subgroup_announce_check(struct bgp_node
*rn
, struct bgp_path_info
*pi
,
1421 struct update_subgroup
*subgrp
, struct prefix
*p
,
1424 struct bgp_filter
*filter
;
1427 struct peer
*onlypeer
;
1429 struct attr
*piattr
;
1430 char buf
[PREFIX_STRLEN
];
1436 int samepeer_safe
= 0; /* for synthetic mplsvpns routes */
1438 if (DISABLE_BGP_ANNOUNCE
)
1441 afi
= SUBGRP_AFI(subgrp
);
1442 safi
= SUBGRP_SAFI(subgrp
);
1443 peer
= SUBGRP_PEER(subgrp
);
1445 if (CHECK_FLAG(peer
->flags
, PEER_FLAG_LONESOUL
))
1446 onlypeer
= SUBGRP_PFIRST(subgrp
)->peer
;
1449 filter
= &peer
->filter
[afi
][safi
];
1450 bgp
= SUBGRP_INST(subgrp
);
1451 piattr
= bgp_path_info_mpath_count(pi
) ? bgp_path_info_mpath_attr(pi
)
1455 if (((afi
== AFI_IP
) || (afi
== AFI_IP6
)) && (safi
== SAFI_MPLS_VPN
)
1456 && ((pi
->type
== ZEBRA_ROUTE_BGP_DIRECT
)
1457 || (pi
->type
== ZEBRA_ROUTE_BGP_DIRECT_EXT
))) {
1460 * direct and direct_ext type routes originate internally even
1461 * though they can have peer pointers that reference other
1464 prefix2str(p
, buf
, PREFIX_STRLEN
);
1465 zlog_debug("%s: pfx %s bgp_direct->vpn route peer safe",
1471 if (((afi
== AFI_IP
) || (afi
== AFI_IP6
))
1472 && ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_UNICAST
))
1473 && (pi
->type
== ZEBRA_ROUTE_BGP
)
1474 && (pi
->sub_type
== BGP_ROUTE_IMPORTED
)) {
1476 /* Applies to routes leaked vpn->vrf and vrf->vpn */
1481 /* With addpath we may be asked to TX all kinds of paths so make sure
1483 if (!CHECK_FLAG(pi
->flags
, BGP_PATH_VALID
)
1484 || CHECK_FLAG(pi
->flags
, BGP_PATH_HISTORY
)
1485 || CHECK_FLAG(pi
->flags
, BGP_PATH_REMOVED
)) {
1489 /* If this is not the bestpath then check to see if there is an enabled
1491 * feature that requires us to advertise it */
1492 if (!CHECK_FLAG(pi
->flags
, BGP_PATH_SELECTED
)) {
1493 if (!bgp_addpath_tx_path(peer
->addpath_type
[afi
][safi
], pi
)) {
1498 /* Aggregate-address suppress check. */
1499 if (pi
->extra
&& pi
->extra
->suppress
)
1500 if (!UNSUPPRESS_MAP_NAME(filter
)) {
1505 * If we are doing VRF 2 VRF leaking via the import
1506 * statement, we want to prevent the route going
1507 * off box as that the RT and RD created are localy
1508 * significant and globaly useless.
1510 if (safi
== SAFI_MPLS_VPN
&& pi
->extra
&& pi
->extra
->num_labels
1511 && pi
->extra
->label
[0] == BGP_PREVENT_VRF_2_VRF_LEAK
)
1514 /* If it's labeled safi, make sure the route has a valid label. */
1515 if (safi
== SAFI_LABELED_UNICAST
) {
1516 mpls_label_t label
= bgp_adv_label(rn
, pi
, peer
, afi
, safi
);
1517 if (!bgp_is_valid_label(&label
)) {
1518 if (bgp_debug_update(NULL
, p
, subgrp
->update_group
, 0))
1519 zlog_debug("u%" PRIu64
":s%" PRIu64
1520 " %s/%d is filtered - no label (%p)",
1521 subgrp
->update_group
->id
, subgrp
->id
,
1522 inet_ntop(p
->family
, &p
->u
.prefix
,
1523 buf
, SU_ADDRSTRLEN
),
1524 p
->prefixlen
, &label
);
1529 /* Do not send back route to sender. */
1530 if (onlypeer
&& from
== onlypeer
) {
1534 /* Do not send the default route in the BGP table if the neighbor is
1535 * configured for default-originate */
1536 if (CHECK_FLAG(peer
->af_flags
[afi
][safi
],
1537 PEER_FLAG_DEFAULT_ORIGINATE
)) {
1538 if (p
->family
== AF_INET
&& p
->u
.prefix4
.s_addr
== INADDR_ANY
)
1540 else if (p
->family
== AF_INET6
&& p
->prefixlen
== 0)
1544 /* Transparency check. */
1545 if (CHECK_FLAG(peer
->af_flags
[afi
][safi
], PEER_FLAG_RSERVER_CLIENT
)
1546 && CHECK_FLAG(from
->af_flags
[afi
][safi
], PEER_FLAG_RSERVER_CLIENT
))
1551 /* If community is not disabled check the no-export and local. */
1552 if (!transparent
&& bgp_community_filter(peer
, piattr
)) {
1553 if (bgp_debug_update(NULL
, p
, subgrp
->update_group
, 0))
1555 "subgrpannouncecheck: community filter check fail");
1559 /* If the attribute has originator-id and it is same as remote
1561 if (onlypeer
&& piattr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID
)
1562 && (IPV4_ADDR_SAME(&onlypeer
->remote_id
, &piattr
->originator_id
))) {
1563 if (bgp_debug_update(NULL
, p
, subgrp
->update_group
, 0))
1565 "%s [Update:SEND] %s originator-id is same as "
1568 prefix2str(p
, buf
, sizeof(buf
)));
1572 /* ORF prefix-list filter check */
1573 if (CHECK_FLAG(peer
->af_cap
[afi
][safi
], PEER_CAP_ORF_PREFIX_RM_ADV
)
1574 && (CHECK_FLAG(peer
->af_cap
[afi
][safi
], PEER_CAP_ORF_PREFIX_SM_RCV
)
1575 || CHECK_FLAG(peer
->af_cap
[afi
][safi
],
1576 PEER_CAP_ORF_PREFIX_SM_OLD_RCV
)))
1577 if (peer
->orf_plist
[afi
][safi
]) {
1578 if (prefix_list_apply(peer
->orf_plist
[afi
][safi
], p
)
1580 if (bgp_debug_update(NULL
, p
,
1581 subgrp
->update_group
, 0))
1583 "%s [Update:SEND] %s is filtered via ORF",
1591 /* Output filter check. */
1592 if (bgp_output_filter(peer
, p
, piattr
, afi
, safi
) == FILTER_DENY
) {
1593 if (bgp_debug_update(NULL
, p
, subgrp
->update_group
, 0))
1594 zlog_debug("%s [Update:SEND] %s is filtered",
1595 peer
->host
, prefix2str(p
, buf
, sizeof(buf
)));
1599 #ifdef BGP_SEND_ASPATH_CHECK
1600 /* AS path loop check. */
1601 if (onlypeer
&& aspath_loop_check(piattr
->aspath
, onlypeer
->as
)) {
1602 if (bgp_debug_update(NULL
, p
, subgrp
->update_group
, 0))
1604 "%s [Update:SEND] suppress announcement to peer AS %u "
1605 "that is part of AS path.",
1606 onlypeer
->host
, onlypeer
->as
);
1609 #endif /* BGP_SEND_ASPATH_CHECK */
1611 /* If we're a CONFED we need to loop check the CONFED ID too */
1612 if (CHECK_FLAG(bgp
->config
, BGP_CONFIG_CONFEDERATION
)) {
1613 if (aspath_loop_check(piattr
->aspath
, bgp
->confed_id
)) {
1614 if (bgp_debug_update(NULL
, p
, subgrp
->update_group
, 0))
1616 "%s [Update:SEND] suppress announcement to peer AS %u"
1618 peer
->host
, bgp
->confed_id
);
1623 /* Route-Reflect check. */
1624 if (from
->sort
== BGP_PEER_IBGP
&& peer
->sort
== BGP_PEER_IBGP
)
1629 /* IBGP reflection check. */
1630 if (reflect
&& !samepeer_safe
) {
1631 /* A route from a Client peer. */
1632 if (CHECK_FLAG(from
->af_flags
[afi
][safi
],
1633 PEER_FLAG_REFLECTOR_CLIENT
)) {
1634 /* Reflect to all the Non-Client peers and also to the
1635 Client peers other than the originator. Originator
1637 is already done. So there is noting to do. */
1638 /* no bgp client-to-client reflection check. */
1639 if (bgp_flag_check(bgp
, BGP_FLAG_NO_CLIENT_TO_CLIENT
))
1640 if (CHECK_FLAG(peer
->af_flags
[afi
][safi
],
1641 PEER_FLAG_REFLECTOR_CLIENT
))
1644 /* A route from a Non-client peer. Reflect to all other
1646 if (!CHECK_FLAG(peer
->af_flags
[afi
][safi
],
1647 PEER_FLAG_REFLECTOR_CLIENT
))
1652 /* For modify attribute, copy it to temporary structure. */
1653 bgp_attr_dup(attr
, piattr
);
1655 /* If local-preference is not set. */
1656 if ((peer
->sort
== BGP_PEER_IBGP
|| peer
->sort
== BGP_PEER_CONFED
)
1657 && (!(attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
)))) {
1658 attr
->flag
|= ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
);
1659 attr
->local_pref
= bgp
->default_local_pref
;
1662 /* If originator-id is not set and the route is to be reflected,
1663 set the originator id */
1665 && (!(attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID
)))) {
1666 IPV4_ADDR_COPY(&(attr
->originator_id
), &(from
->remote_id
));
1667 SET_FLAG(attr
->flag
, BGP_ATTR_ORIGINATOR_ID
);
1670 /* Remove MED if its an EBGP peer - will get overwritten by route-maps
1672 if (peer
->sort
== BGP_PEER_EBGP
1673 && attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
)) {
1674 if (from
!= bgp
->peer_self
&& !transparent
1675 && !CHECK_FLAG(peer
->af_flags
[afi
][safi
],
1676 PEER_FLAG_MED_UNCHANGED
))
1678 ~(ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
));
1681 /* Since the nexthop attribute can vary per peer, it is not explicitly
1683 * in announce check, only certain flags and length (or number of
1685 * -- for IPv6/MP_REACH) are set here in order to guide the update
1687 * code in setting the nexthop(s) on a per peer basis in
1689 * Typically, the source nexthop in the attribute is preserved but in
1691 * scenarios where we know it will always be overwritten, we reset the
1692 * nexthop to "0" in an attempt to achieve better Update packing. An
1693 * example of this is when a prefix from each of 2 IBGP peers needs to
1695 * announced to an EBGP peer (and they have the same attributes barring
1699 SET_FLAG(attr
->rmap_change_flags
, BATTR_REFLECTED
);
1701 #define NEXTHOP_IS_V6 \
1702 ((safi != SAFI_ENCAP && safi != SAFI_MPLS_VPN \
1703 && (p->family == AF_INET6 || peer_cap_enhe(peer, afi, safi))) \
1704 || ((safi == SAFI_ENCAP || safi == SAFI_MPLS_VPN) \
1705 && attr->mp_nexthop_len >= IPV6_MAX_BYTELEN))
1707 /* IPv6/MP starts with 1 nexthop. The link-local address is passed only
1709 * the peer (group) is configured to receive link-local nexthop
1711 * and it is available in the prefix OR we're not reflecting the route
1713 * the peer (group) to whom we're going to announce is on a shared
1715 * and this is either a self-originated route or the peer is EBGP.
1717 if (NEXTHOP_IS_V6
) {
1718 attr
->mp_nexthop_len
= BGP_ATTR_NHLEN_IPV6_GLOBAL
;
1719 if ((CHECK_FLAG(peer
->af_flags
[afi
][safi
],
1720 PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED
)
1721 && IN6_IS_ADDR_LINKLOCAL(&attr
->mp_nexthop_local
))
1722 || (!reflect
&& peer
->shared_network
1723 && (from
== bgp
->peer_self
1724 || peer
->sort
== BGP_PEER_EBGP
))) {
1725 attr
->mp_nexthop_len
=
1726 BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL
;
1729 /* Clear off link-local nexthop in source, whenever it is not
1731 * ensure more prefixes share the same attribute for
1734 if (!(CHECK_FLAG(peer
->af_flags
[afi
][safi
],
1735 PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED
)))
1736 memset(&attr
->mp_nexthop_local
, 0, IPV6_MAX_BYTELEN
);
1739 bgp_peer_remove_private_as(bgp
, afi
, safi
, peer
, attr
);
1740 bgp_peer_as_override(bgp
, afi
, safi
, peer
, attr
);
1742 /* Route map & unsuppress-map apply. */
1743 if (ROUTE_MAP_OUT_NAME(filter
) || (pi
->extra
&& pi
->extra
->suppress
)) {
1744 struct bgp_path_info rmap_path
;
1745 struct bgp_path_info_extra dummy_rmap_path_extra
;
1746 struct attr dummy_attr
;
1748 memset(&rmap_path
, 0, sizeof(struct bgp_path_info
));
1749 rmap_path
.peer
= peer
;
1750 rmap_path
.attr
= attr
;
1753 memcpy(&dummy_rmap_path_extra
, pi
->extra
,
1754 sizeof(struct bgp_path_info_extra
));
1755 rmap_path
.extra
= &dummy_rmap_path_extra
;
1758 /* don't confuse inbound and outbound setting */
1759 RESET_FLAG(attr
->rmap_change_flags
);
1762 * The route reflector is not allowed to modify the attributes
1763 * of the reflected IBGP routes unless explicitly allowed.
1765 if ((from
->sort
== BGP_PEER_IBGP
&& peer
->sort
== BGP_PEER_IBGP
)
1766 && !bgp_flag_check(bgp
,
1767 BGP_FLAG_RR_ALLOW_OUTBOUND_POLICY
)) {
1768 bgp_attr_dup(&dummy_attr
, attr
);
1769 rmap_path
.attr
= &dummy_attr
;
1772 SET_FLAG(peer
->rmap_type
, PEER_RMAP_TYPE_OUT
);
1774 if (pi
->extra
&& pi
->extra
->suppress
)
1775 ret
= route_map_apply(UNSUPPRESS_MAP(filter
), p
,
1776 RMAP_BGP
, &rmap_path
);
1778 ret
= route_map_apply(ROUTE_MAP_OUT(filter
), p
,
1779 RMAP_BGP
, &rmap_path
);
1781 peer
->rmap_type
= 0;
1783 if (ret
== RMAP_DENYMATCH
) {
1784 bgp_attr_flush(attr
);
1789 /* RFC 8212 to prevent route leaks.
1790 * This specification intends to improve this situation by requiring the
1791 * explicit configuration of both BGP Import and Export Policies for any
1792 * External BGP (EBGP) session such as customers, peers, or
1793 * confederation boundaries for all enabled address families. Through
1794 * codification of the aforementioned requirement, operators will
1795 * benefit from consistent behavior across different BGP
1798 if (peer
->bgp
->ebgp_requires_policy
1799 == DEFAULT_EBGP_POLICY_ENABLED
)
1800 if (!bgp_outbound_policy_exists(peer
, filter
))
1803 if (bgp_flag_check(bgp
, BGP_FLAG_GRACEFUL_SHUTDOWN
)) {
1804 if (peer
->sort
== BGP_PEER_IBGP
1805 || peer
->sort
== BGP_PEER_CONFED
) {
1806 attr
->flag
|= ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
);
1807 attr
->local_pref
= BGP_GSHUT_LOCAL_PREF
;
1809 bgp_attr_add_gshut_community(attr
);
1813 /* After route-map has been applied, we check to see if the nexthop to
1814 * be carried in the attribute (that is used for the announcement) can
1815 * be cleared off or not. We do this in all cases where we would be
1816 * setting the nexthop to "ourselves". For IPv6, we only need to
1818 * the global nexthop here; the link-local nexthop would have been
1820 * already, and if not, it is required by the update formation code.
1821 * Also see earlier comments in this function.
1824 * If route-map has performed some operation on the nexthop or the peer
1825 * configuration says to pass it unchanged, we cannot reset the nexthop
1826 * here, so only attempt to do it if these aren't true. Note that the
1827 * route-map handler itself might have cleared the nexthop, if for
1829 * it is configured as 'peer-address'.
1831 if (!bgp_rmap_nhop_changed(attr
->rmap_change_flags
,
1832 piattr
->rmap_change_flags
)
1834 && !CHECK_FLAG(peer
->af_flags
[afi
][safi
],
1835 PEER_FLAG_NEXTHOP_UNCHANGED
)) {
1836 /* We can reset the nexthop, if setting (or forcing) it to
1838 if (CHECK_FLAG(peer
->af_flags
[afi
][safi
],
1839 PEER_FLAG_NEXTHOP_SELF
)
1840 || CHECK_FLAG(peer
->af_flags
[afi
][safi
],
1841 PEER_FLAG_FORCE_NEXTHOP_SELF
)) {
1843 || CHECK_FLAG(peer
->af_flags
[afi
][safi
],
1844 PEER_FLAG_FORCE_NEXTHOP_SELF
))
1845 subgroup_announce_reset_nhop(
1846 (peer_cap_enhe(peer
, afi
, safi
)
1850 } else if (peer
->sort
== BGP_PEER_EBGP
) {
1851 /* Can also reset the nexthop if announcing to EBGP, but
1853 * no peer in the subgroup is on a shared subnet.
1854 * Note: 3rd party nexthop currently implemented for
1857 if (!bgp_subgrp_multiaccess_check_v4(piattr
->nexthop
,
1859 subgroup_announce_reset_nhop(
1860 (peer_cap_enhe(peer
, afi
, safi
)
1864 } else if (CHECK_FLAG(pi
->flags
, BGP_PATH_ANNC_NH_SELF
)) {
1866 * This flag is used for leaked vpn-vrf routes
1868 int family
= p
->family
;
1870 if (peer_cap_enhe(peer
, afi
, safi
))
1873 if (bgp_debug_update(NULL
, p
, subgrp
->update_group
, 0))
1875 "%s: BGP_PATH_ANNC_NH_SELF, family=%s",
1876 __func__
, family2str(family
));
1877 subgroup_announce_reset_nhop(family
, attr
);
1880 /* If IPv6/MP and nexthop does not have any override and happens
1882 * be a link-local address, reset it so that we don't pass along
1884 * source's link-local IPv6 address to recipients who may not be
1886 * the same interface.
1888 if (p
->family
== AF_INET6
|| peer_cap_enhe(peer
, afi
, safi
)) {
1889 if (IN6_IS_ADDR_LINKLOCAL(&attr
->mp_nexthop_global
))
1890 subgroup_announce_reset_nhop(AF_INET6
, attr
);
1897 void bgp_best_selection(struct bgp
*bgp
, struct bgp_node
*rn
,
1898 struct bgp_maxpaths_cfg
*mpath_cfg
,
1899 struct bgp_path_info_pair
*result
, afi_t afi
,
1902 struct bgp_path_info
*new_select
;
1903 struct bgp_path_info
*old_select
;
1904 struct bgp_path_info
*pi
;
1905 struct bgp_path_info
*pi1
;
1906 struct bgp_path_info
*pi2
;
1907 struct bgp_path_info
*nextpi
= NULL
;
1908 int paths_eq
, do_mpath
, debug
;
1909 struct list mp_list
;
1910 char pfx_buf
[PREFIX2STR_BUFFER
];
1911 char path_buf
[PATH_ADDPATH_STR_BUFFER
];
1913 bgp_mp_list_init(&mp_list
);
1915 (mpath_cfg
->maxpaths_ebgp
> 1 || mpath_cfg
->maxpaths_ibgp
> 1);
1917 debug
= bgp_debug_bestpath(&rn
->p
);
1920 prefix2str(&rn
->p
, pfx_buf
, sizeof(pfx_buf
));
1922 /* bgp deterministic-med */
1924 if (bgp_flag_check(bgp
, BGP_FLAG_DETERMINISTIC_MED
)) {
1926 /* Clear BGP_PATH_DMED_SELECTED for all paths */
1927 for (pi1
= bgp_node_get_bgp_path_info(rn
); pi1
;
1929 bgp_path_info_unset_flag(rn
, pi1
,
1930 BGP_PATH_DMED_SELECTED
);
1932 for (pi1
= bgp_node_get_bgp_path_info(rn
); pi1
;
1934 if (CHECK_FLAG(pi1
->flags
, BGP_PATH_DMED_CHECK
))
1936 if (BGP_PATH_HOLDDOWN(pi1
))
1938 if (pi1
->peer
!= bgp
->peer_self
)
1939 if (pi1
->peer
->status
!= Established
)
1944 for (pi2
= pi1
->next
; pi2
; pi2
= pi2
->next
) {
1945 if (CHECK_FLAG(pi2
->flags
,
1946 BGP_PATH_DMED_CHECK
))
1948 if (BGP_PATH_HOLDDOWN(pi2
))
1950 if (pi2
->peer
!= bgp
->peer_self
1953 PEER_STATUS_NSF_WAIT
))
1954 if (pi2
->peer
->status
1958 if (!aspath_cmp_left(pi1
->attr
->aspath
,
1960 && !aspath_cmp_left_confed(
1965 if (bgp_path_info_cmp(
1966 bgp
, pi2
, new_select
,
1967 &paths_eq
, mpath_cfg
, debug
,
1968 pfx_buf
, afi
, safi
)) {
1969 bgp_path_info_unset_flag(
1971 BGP_PATH_DMED_SELECTED
);
1975 bgp_path_info_set_flag(
1976 rn
, pi2
, BGP_PATH_DMED_CHECK
);
1979 bgp_path_info_set_flag(rn
, new_select
,
1980 BGP_PATH_DMED_CHECK
);
1981 bgp_path_info_set_flag(rn
, new_select
,
1982 BGP_PATH_DMED_SELECTED
);
1985 bgp_path_info_path_with_addpath_rx_str(
1986 new_select
, path_buf
);
1987 zlog_debug("%s: %s is the bestpath from AS %u",
1989 aspath_get_first_as(
1990 new_select
->attr
->aspath
));
1995 /* Check old selected route and new selected route. */
1998 for (pi
= bgp_node_get_bgp_path_info(rn
);
1999 (pi
!= NULL
) && (nextpi
= pi
->next
, 1); pi
= nextpi
) {
2000 if (CHECK_FLAG(pi
->flags
, BGP_PATH_SELECTED
))
2003 if (BGP_PATH_HOLDDOWN(pi
)) {
2004 /* reap REMOVED routes, if needs be
2005 * selected route must stay for a while longer though
2007 if (CHECK_FLAG(pi
->flags
, BGP_PATH_REMOVED
)
2008 && (pi
!= old_select
))
2009 bgp_path_info_reap(rn
, pi
);
2012 zlog_debug("%s: pi %p in holddown", __func__
,
2018 if (pi
->peer
&& pi
->peer
!= bgp
->peer_self
2019 && !CHECK_FLAG(pi
->peer
->sflags
, PEER_STATUS_NSF_WAIT
))
2020 if (pi
->peer
->status
!= Established
) {
2024 "%s: pi %p non self peer %s not estab state",
2025 __func__
, pi
, pi
->peer
->host
);
2030 if (bgp_flag_check(bgp
, BGP_FLAG_DETERMINISTIC_MED
)
2031 && (!CHECK_FLAG(pi
->flags
, BGP_PATH_DMED_SELECTED
))) {
2032 bgp_path_info_unset_flag(rn
, pi
, BGP_PATH_DMED_CHECK
);
2034 zlog_debug("%s: pi %p dmed", __func__
, pi
);
2038 bgp_path_info_unset_flag(rn
, pi
, BGP_PATH_DMED_CHECK
);
2040 if (bgp_path_info_cmp(bgp
, pi
, new_select
, &paths_eq
, mpath_cfg
,
2041 debug
, pfx_buf
, afi
, safi
)) {
2046 /* Now that we know which path is the bestpath see if any of the other
2048 * qualify as multipaths
2052 bgp_path_info_path_with_addpath_rx_str(new_select
,
2055 sprintf(path_buf
, "NONE");
2057 "%s: After path selection, newbest is %s oldbest was %s",
2059 old_select
? old_select
->peer
->host
: "NONE");
2062 if (do_mpath
&& new_select
) {
2063 for (pi
= bgp_node_get_bgp_path_info(rn
);
2064 (pi
!= NULL
) && (nextpi
= pi
->next
, 1); pi
= nextpi
) {
2067 bgp_path_info_path_with_addpath_rx_str(
2070 if (pi
== new_select
) {
2073 "%s: %s is the bestpath, add to the multipath list",
2075 bgp_mp_list_add(&mp_list
, pi
);
2079 if (BGP_PATH_HOLDDOWN(pi
))
2082 if (pi
->peer
&& pi
->peer
!= bgp
->peer_self
2083 && !CHECK_FLAG(pi
->peer
->sflags
,
2084 PEER_STATUS_NSF_WAIT
))
2085 if (pi
->peer
->status
!= Established
)
2088 if (!bgp_path_info_nexthop_cmp(pi
, new_select
)) {
2091 "%s: %s has the same nexthop as the bestpath, skip it",
2096 bgp_path_info_cmp(bgp
, pi
, new_select
, &paths_eq
,
2097 mpath_cfg
, debug
, pfx_buf
, afi
, safi
);
2102 "%s: %s is equivalent to the bestpath, add to the multipath list",
2104 bgp_mp_list_add(&mp_list
, pi
);
2109 bgp_path_info_mpath_update(rn
, new_select
, old_select
, &mp_list
,
2111 bgp_path_info_mpath_aggregate_update(new_select
, old_select
);
2112 bgp_mp_list_clear(&mp_list
);
2114 bgp_addpath_update_ids(bgp
, rn
, afi
, safi
);
2116 result
->old
= old_select
;
2117 result
->new = new_select
;
2123 * A new route/change in bestpath of an existing route. Evaluate the path
2124 * for advertisement to the subgroup.
2126 int subgroup_process_announce_selected(struct update_subgroup
*subgrp
,
2127 struct bgp_path_info
*selected
,
2128 struct bgp_node
*rn
,
2129 uint32_t addpath_tx_id
)
2132 struct peer
*onlypeer
;
2138 afi
= SUBGRP_AFI(subgrp
);
2139 safi
= SUBGRP_SAFI(subgrp
);
2140 onlypeer
= ((SUBGRP_PCOUNT(subgrp
) == 1) ? (SUBGRP_PFIRST(subgrp
))->peer
2143 if (BGP_DEBUG(update
, UPDATE_OUT
)) {
2144 char buf_prefix
[PREFIX_STRLEN
];
2145 prefix2str(p
, buf_prefix
, sizeof(buf_prefix
));
2146 zlog_debug("%s: p=%s, selected=%p", __func__
, buf_prefix
,
2150 /* First update is deferred until ORF or ROUTE-REFRESH is received */
2151 if (onlypeer
&& CHECK_FLAG(onlypeer
->af_sflags
[afi
][safi
],
2152 PEER_STATUS_ORF_WAIT_REFRESH
))
2155 memset(&attr
, 0, sizeof(struct attr
));
2156 /* It's initialized in bgp_announce_check() */
2158 /* Announcement to the subgroup. If the route is filtered withdraw it.
2161 if (subgroup_announce_check(rn
, selected
, subgrp
, p
, &attr
))
2162 bgp_adj_out_set_subgroup(rn
, subgrp
, &attr
, selected
);
2164 bgp_adj_out_unset_subgroup(rn
, subgrp
, 1,
2168 /* If selected is NULL we must withdraw the path using addpath_tx_id */
2170 bgp_adj_out_unset_subgroup(rn
, subgrp
, 1, addpath_tx_id
);
2177 * Clear IGP changed flag and attribute changed flag for a route (all paths).
2178 * This is called at the end of route processing.
2180 void bgp_zebra_clear_route_change_flags(struct bgp_node
*rn
)
2182 struct bgp_path_info
*pi
;
2184 for (pi
= bgp_node_get_bgp_path_info(rn
); pi
; pi
= pi
->next
) {
2185 if (BGP_PATH_HOLDDOWN(pi
))
2187 UNSET_FLAG(pi
->flags
, BGP_PATH_IGP_CHANGED
);
2188 UNSET_FLAG(pi
->flags
, BGP_PATH_ATTR_CHANGED
);
2193 * Has the route changed from the RIB's perspective? This is invoked only
2194 * if the route selection returns the same best route as earlier - to
2195 * determine if we need to update zebra or not.
2197 int bgp_zebra_has_route_changed(struct bgp_node
*rn
,
2198 struct bgp_path_info
*selected
)
2200 struct bgp_path_info
*mpinfo
;
2202 /* If this is multipath, check all selected paths for any nexthop
2203 * change or attribute change. Some attribute changes (e.g., community)
2204 * aren't of relevance to the RIB, but we'll update zebra to ensure
2205 * we handle the case of BGP nexthop change. This is the behavior
2206 * when the best path has an attribute change anyway.
2208 if (CHECK_FLAG(selected
->flags
, BGP_PATH_IGP_CHANGED
)
2209 || CHECK_FLAG(selected
->flags
, BGP_PATH_MULTIPATH_CHG
))
2213 * If this is multipath, check all selected paths for any nexthop change
2215 for (mpinfo
= bgp_path_info_mpath_first(selected
); mpinfo
;
2216 mpinfo
= bgp_path_info_mpath_next(mpinfo
)) {
2217 if (CHECK_FLAG(mpinfo
->flags
, BGP_PATH_IGP_CHANGED
)
2218 || CHECK_FLAG(mpinfo
->flags
, BGP_PATH_ATTR_CHANGED
))
2222 /* Nothing has changed from the RIB's perspective. */
2226 struct bgp_process_queue
{
2228 STAILQ_HEAD(, bgp_node
) pqueue
;
2229 #define BGP_PROCESS_QUEUE_EOIU_MARKER (1 << 0)
2231 unsigned int queued
;
2235 * old_select = The old best path
2236 * new_select = the new best path
2238 * if (!old_select && new_select)
2239 * We are sending new information on.
2241 * if (old_select && new_select) {
2242 * if (new_select != old_select)
2243 * We have a new best path send a change
2245 * We've received a update with new attributes that needs
2249 * if (old_select && !new_select)
2250 * We have no eligible route that we can announce or the rn
2253 static void bgp_process_main_one(struct bgp
*bgp
, struct bgp_node
*rn
,
2254 afi_t afi
, safi_t safi
)
2256 struct bgp_path_info
*new_select
;
2257 struct bgp_path_info
*old_select
;
2258 struct bgp_path_info_pair old_and_new
;
2259 char pfx_buf
[PREFIX2STR_BUFFER
];
2262 /* Is it end of initial update? (after startup) */
2264 quagga_timestamp(3, bgp
->update_delay_zebra_resume_time
,
2265 sizeof(bgp
->update_delay_zebra_resume_time
));
2267 bgp
->main_zebra_update_hold
= 0;
2268 FOREACH_AFI_SAFI (afi
, safi
) {
2269 if (bgp_fibupd_safi(safi
))
2270 bgp_zebra_announce_table(bgp
, afi
, safi
);
2272 bgp
->main_peers_update_hold
= 0;
2274 bgp_start_routeadv(bgp
);
2278 struct prefix
*p
= &rn
->p
;
2280 debug
= bgp_debug_bestpath(&rn
->p
);
2282 prefix2str(&rn
->p
, pfx_buf
, sizeof(pfx_buf
));
2283 zlog_debug("%s: p=%s afi=%s, safi=%s start", __func__
, pfx_buf
,
2284 afi2str(afi
), safi2str(safi
));
2287 /* Best path selection. */
2288 bgp_best_selection(bgp
, rn
, &bgp
->maxpaths
[afi
][safi
], &old_and_new
,
2290 old_select
= old_and_new
.old
;
2291 new_select
= old_and_new
.new;
2293 /* Do we need to allocate or free labels?
2294 * Right now, since we only deal with per-prefix labels, it is not
2295 * necessary to do this upon changes to best path. Exceptions:
2296 * - label index has changed -> recalculate resulting label
2297 * - path_info sub_type changed -> switch to/from implicit-null
2298 * - no valid label (due to removed static label binding) -> get new one
2300 if (bgp
->allocate_mpls_labels
[afi
][safi
]) {
2303 || bgp_label_index_differs(new_select
, old_select
)
2304 || new_select
->sub_type
!= old_select
->sub_type
2305 || !bgp_is_valid_label(&rn
->local_label
)) {
2306 /* Enforced penultimate hop popping:
2307 * implicit-null for local routes, aggregate
2308 * and redistributed routes
2310 if (new_select
->sub_type
== BGP_ROUTE_STATIC
2311 || new_select
->sub_type
2312 == BGP_ROUTE_AGGREGATE
2313 || new_select
->sub_type
2314 == BGP_ROUTE_REDISTRIBUTE
) {
2317 BGP_NODE_REGISTERED_FOR_LABEL
))
2318 bgp_unregister_for_label(rn
);
2319 label_ntop(MPLS_LABEL_IMPLICIT_NULL
, 1,
2321 bgp_set_valid_label(&rn
->local_label
);
2323 bgp_register_for_label(rn
, new_select
);
2325 } else if (CHECK_FLAG(rn
->flags
,
2326 BGP_NODE_REGISTERED_FOR_LABEL
)) {
2327 bgp_unregister_for_label(rn
);
2329 } else if (CHECK_FLAG(rn
->flags
, BGP_NODE_REGISTERED_FOR_LABEL
)) {
2330 bgp_unregister_for_label(rn
);
2334 prefix2str(&rn
->p
, pfx_buf
, sizeof(pfx_buf
));
2336 "%s: p=%s afi=%s, safi=%s, old_select=%p, new_select=%p",
2337 __func__
, pfx_buf
, afi2str(afi
), safi2str(safi
),
2338 old_select
, new_select
);
2341 /* If best route remains the same and this is not due to user-initiated
2342 * clear, see exactly what needs to be done.
2344 if (old_select
&& old_select
== new_select
2345 && !CHECK_FLAG(rn
->flags
, BGP_NODE_USER_CLEAR
)
2346 && !CHECK_FLAG(old_select
->flags
, BGP_PATH_ATTR_CHANGED
)
2347 && !bgp_addpath_is_addpath_used(&bgp
->tx_addpath
, afi
, safi
)) {
2348 if (bgp_zebra_has_route_changed(rn
, old_select
)) {
2350 vnc_import_bgp_add_route(bgp
, p
, old_select
);
2351 vnc_import_bgp_exterior_add_route(bgp
, p
, old_select
);
2353 if (bgp_fibupd_safi(safi
)
2354 && !bgp_option_check(BGP_OPT_NO_FIB
)) {
2356 if (new_select
->type
== ZEBRA_ROUTE_BGP
2357 && (new_select
->sub_type
== BGP_ROUTE_NORMAL
2358 || new_select
->sub_type
2359 == BGP_ROUTE_IMPORTED
))
2361 bgp_zebra_announce(rn
, p
, old_select
,
2365 UNSET_FLAG(old_select
->flags
, BGP_PATH_MULTIPATH_CHG
);
2366 bgp_zebra_clear_route_change_flags(rn
);
2368 /* If there is a change of interest to peers, reannounce the
2370 if (CHECK_FLAG(old_select
->flags
, BGP_PATH_ATTR_CHANGED
)
2371 || CHECK_FLAG(rn
->flags
, BGP_NODE_LABEL_CHANGED
)) {
2372 group_announce_route(bgp
, afi
, safi
, rn
, new_select
);
2374 /* unicast routes must also be annouced to
2375 * labeled-unicast update-groups */
2376 if (safi
== SAFI_UNICAST
)
2377 group_announce_route(bgp
, afi
,
2378 SAFI_LABELED_UNICAST
, rn
,
2381 UNSET_FLAG(old_select
->flags
, BGP_PATH_ATTR_CHANGED
);
2382 UNSET_FLAG(rn
->flags
, BGP_NODE_LABEL_CHANGED
);
2385 UNSET_FLAG(rn
->flags
, BGP_NODE_PROCESS_SCHEDULED
);
2389 /* If the user did "clear ip bgp prefix x.x.x.x" this flag will be set
2391 UNSET_FLAG(rn
->flags
, BGP_NODE_USER_CLEAR
);
2393 /* bestpath has changed; bump version */
2394 if (old_select
|| new_select
) {
2395 bgp_bump_version(rn
);
2397 if (!bgp
->t_rmap_def_originate_eval
) {
2401 update_group_refresh_default_originate_route_map
,
2402 bgp
, RMAP_DEFAULT_ORIGINATE_EVAL_TIMER
,
2403 &bgp
->t_rmap_def_originate_eval
);
2408 bgp_path_info_unset_flag(rn
, old_select
, BGP_PATH_SELECTED
);
2411 zlog_debug("%s: setting SELECTED flag", __func__
);
2412 bgp_path_info_set_flag(rn
, new_select
, BGP_PATH_SELECTED
);
2413 bgp_path_info_unset_flag(rn
, new_select
, BGP_PATH_ATTR_CHANGED
);
2414 UNSET_FLAG(new_select
->flags
, BGP_PATH_MULTIPATH_CHG
);
2418 if ((afi
== AFI_IP
|| afi
== AFI_IP6
) && (safi
== SAFI_UNICAST
)) {
2419 if (old_select
!= new_select
) {
2421 vnc_import_bgp_exterior_del_route(bgp
, p
,
2423 vnc_import_bgp_del_route(bgp
, p
, old_select
);
2426 vnc_import_bgp_exterior_add_route(bgp
, p
,
2428 vnc_import_bgp_add_route(bgp
, p
, new_select
);
2434 group_announce_route(bgp
, afi
, safi
, rn
, new_select
);
2436 /* unicast routes must also be annouced to labeled-unicast update-groups
2438 if (safi
== SAFI_UNICAST
)
2439 group_announce_route(bgp
, afi
, SAFI_LABELED_UNICAST
, rn
,
2443 if (bgp_fibupd_safi(safi
) && (bgp
->inst_type
!= BGP_INSTANCE_TYPE_VIEW
)
2444 && !bgp_option_check(BGP_OPT_NO_FIB
)) {
2445 if (new_select
&& new_select
->type
== ZEBRA_ROUTE_BGP
2446 && (new_select
->sub_type
== BGP_ROUTE_NORMAL
2447 || new_select
->sub_type
== BGP_ROUTE_AGGREGATE
2448 || new_select
->sub_type
== BGP_ROUTE_IMPORTED
)) {
2450 /* if this is an evpn imported type-5 prefix,
2451 * we need to withdraw the route first to clear
2452 * the nh neigh and the RMAC entry.
2455 is_route_parent_evpn(old_select
))
2456 bgp_zebra_withdraw(p
, old_select
, bgp
, safi
);
2458 bgp_zebra_announce(rn
, p
, new_select
, bgp
, afi
, safi
);
2460 /* Withdraw the route from the kernel. */
2461 if (old_select
&& old_select
->type
== ZEBRA_ROUTE_BGP
2462 && (old_select
->sub_type
== BGP_ROUTE_NORMAL
2463 || old_select
->sub_type
== BGP_ROUTE_AGGREGATE
2464 || old_select
->sub_type
== BGP_ROUTE_IMPORTED
))
2466 bgp_zebra_withdraw(p
, old_select
, bgp
, safi
);
2470 /* advertise/withdraw type-5 routes */
2471 if ((afi
== AFI_IP
|| afi
== AFI_IP6
) && (safi
== SAFI_UNICAST
)) {
2472 if (advertise_type5_routes(bgp
, afi
) &&
2474 is_route_injectable_into_evpn(new_select
)) {
2476 /* apply the route-map */
2477 if (bgp
->adv_cmd_rmap
[afi
][safi
].map
) {
2480 ret
= route_map_apply(
2481 bgp
->adv_cmd_rmap
[afi
][safi
].map
,
2482 &rn
->p
, RMAP_BGP
, new_select
);
2483 if (ret
== RMAP_MATCH
)
2484 bgp_evpn_advertise_type5_route(
2485 bgp
, &rn
->p
, new_select
->attr
,
2488 bgp_evpn_withdraw_type5_route(
2489 bgp
, &rn
->p
, afi
, safi
);
2491 bgp_evpn_advertise_type5_route(bgp
,
2497 } else if (advertise_type5_routes(bgp
, afi
) &&
2499 is_route_injectable_into_evpn(old_select
))
2500 bgp_evpn_withdraw_type5_route(bgp
, &rn
->p
, afi
, safi
);
2503 /* Clear any route change flags. */
2504 bgp_zebra_clear_route_change_flags(rn
);
2506 /* Reap old select bgp_path_info, if it has been removed */
2507 if (old_select
&& CHECK_FLAG(old_select
->flags
, BGP_PATH_REMOVED
))
2508 bgp_path_info_reap(rn
, old_select
);
2510 UNSET_FLAG(rn
->flags
, BGP_NODE_PROCESS_SCHEDULED
);
2514 static wq_item_status
bgp_process_wq(struct work_queue
*wq
, void *data
)
2516 struct bgp_process_queue
*pqnode
= data
;
2517 struct bgp
*bgp
= pqnode
->bgp
;
2518 struct bgp_table
*table
;
2519 struct bgp_node
*rn
;
2522 if (CHECK_FLAG(pqnode
->flags
, BGP_PROCESS_QUEUE_EOIU_MARKER
)) {
2523 bgp_process_main_one(bgp
, NULL
, 0, 0);
2524 /* should always have dedicated wq call */
2525 assert(STAILQ_FIRST(&pqnode
->pqueue
) == NULL
);
2529 while (!STAILQ_EMPTY(&pqnode
->pqueue
)) {
2530 rn
= STAILQ_FIRST(&pqnode
->pqueue
);
2531 STAILQ_REMOVE_HEAD(&pqnode
->pqueue
, pq
);
2532 STAILQ_NEXT(rn
, pq
) = NULL
; /* complete unlink */
2533 table
= bgp_node_table(rn
);
2534 /* note, new RNs may be added as part of processing */
2535 bgp_process_main_one(bgp
, rn
, table
->afi
, table
->safi
);
2537 bgp_unlock_node(rn
);
2538 bgp_table_unlock(table
);
2544 static void bgp_processq_del(struct work_queue
*wq
, void *data
)
2546 struct bgp_process_queue
*pqnode
= data
;
2548 bgp_unlock(pqnode
->bgp
);
2550 XFREE(MTYPE_BGP_PROCESS_QUEUE
, pqnode
);
2553 void bgp_process_queue_init(void)
2555 if (!bm
->process_main_queue
)
2556 bm
->process_main_queue
=
2557 work_queue_new(bm
->master
, "process_main_queue");
2559 bm
->process_main_queue
->spec
.workfunc
= &bgp_process_wq
;
2560 bm
->process_main_queue
->spec
.del_item_data
= &bgp_processq_del
;
2561 bm
->process_main_queue
->spec
.max_retries
= 0;
2562 bm
->process_main_queue
->spec
.hold
= 50;
2563 /* Use a higher yield value of 50ms for main queue processing */
2564 bm
->process_main_queue
->spec
.yield
= 50 * 1000L;
2567 static struct bgp_process_queue
*bgp_processq_alloc(struct bgp
*bgp
)
2569 struct bgp_process_queue
*pqnode
;
2571 pqnode
= XCALLOC(MTYPE_BGP_PROCESS_QUEUE
,
2572 sizeof(struct bgp_process_queue
));
2574 /* unlocked in bgp_processq_del */
2575 pqnode
->bgp
= bgp_lock(bgp
);
2576 STAILQ_INIT(&pqnode
->pqueue
);
2581 void bgp_process(struct bgp
*bgp
, struct bgp_node
*rn
, afi_t afi
, safi_t safi
)
2583 #define ARBITRARY_PROCESS_QLEN 10000
2584 struct work_queue
*wq
= bm
->process_main_queue
;
2585 struct bgp_process_queue
*pqnode
;
2586 int pqnode_reuse
= 0;
2588 /* already scheduled for processing? */
2589 if (CHECK_FLAG(rn
->flags
, BGP_NODE_PROCESS_SCHEDULED
))
2595 /* Add route nodes to an existing work queue item until reaching the
2596 limit only if is from the same BGP view and it's not an EOIU marker
2598 if (work_queue_item_count(wq
)) {
2599 struct work_queue_item
*item
= work_queue_last_item(wq
);
2600 pqnode
= item
->data
;
2602 if (CHECK_FLAG(pqnode
->flags
, BGP_PROCESS_QUEUE_EOIU_MARKER
)
2603 || pqnode
->bgp
!= bgp
2604 || pqnode
->queued
>= ARBITRARY_PROCESS_QLEN
)
2605 pqnode
= bgp_processq_alloc(bgp
);
2609 pqnode
= bgp_processq_alloc(bgp
);
2610 /* all unlocked in bgp_process_wq */
2611 bgp_table_lock(bgp_node_table(rn
));
2613 SET_FLAG(rn
->flags
, BGP_NODE_PROCESS_SCHEDULED
);
2616 /* can't be enqueued twice */
2617 assert(STAILQ_NEXT(rn
, pq
) == NULL
);
2618 STAILQ_INSERT_TAIL(&pqnode
->pqueue
, rn
, pq
);
2622 work_queue_add(wq
, pqnode
);
2627 void bgp_add_eoiu_mark(struct bgp
*bgp
)
2629 struct bgp_process_queue
*pqnode
;
2631 if (bm
->process_main_queue
== NULL
)
2634 pqnode
= bgp_processq_alloc(bgp
);
2636 SET_FLAG(pqnode
->flags
, BGP_PROCESS_QUEUE_EOIU_MARKER
);
2637 work_queue_add(bm
->process_main_queue
, pqnode
);
2640 static int bgp_maximum_prefix_restart_timer(struct thread
*thread
)
2644 peer
= THREAD_ARG(thread
);
2645 peer
->t_pmax_restart
= NULL
;
2647 if (bgp_debug_neighbor_events(peer
))
2649 "%s Maximum-prefix restart timer expired, restore peering",
2652 if ((peer_clear(peer
, NULL
) < 0) && bgp_debug_neighbor_events(peer
))
2653 zlog_debug("%s: %s peer_clear failed",
2654 __PRETTY_FUNCTION__
, peer
->host
);
2659 int bgp_maximum_prefix_overflow(struct peer
*peer
, afi_t afi
, safi_t safi
,
2663 iana_safi_t pkt_safi
;
2665 if (!CHECK_FLAG(peer
->af_flags
[afi
][safi
], PEER_FLAG_MAX_PREFIX
))
2668 if (peer
->pcount
[afi
][safi
] > peer
->pmax
[afi
][safi
]) {
2669 if (CHECK_FLAG(peer
->af_sflags
[afi
][safi
],
2670 PEER_STATUS_PREFIX_LIMIT
)
2675 "%%MAXPFXEXCEED: No. of %s prefix received from %s %ld exceed, "
2677 afi_safi_print(afi
, safi
), peer
->host
,
2678 peer
->pcount
[afi
][safi
], peer
->pmax
[afi
][safi
]);
2679 SET_FLAG(peer
->af_sflags
[afi
][safi
], PEER_STATUS_PREFIX_LIMIT
);
2681 if (CHECK_FLAG(peer
->af_flags
[afi
][safi
],
2682 PEER_FLAG_MAX_PREFIX_WARNING
))
2685 /* Convert AFI, SAFI to values for packet. */
2686 pkt_afi
= afi_int2iana(afi
);
2687 pkt_safi
= safi_int2iana(safi
);
2691 ndata
[0] = (pkt_afi
>> 8);
2693 ndata
[2] = pkt_safi
;
2694 ndata
[3] = (peer
->pmax
[afi
][safi
] >> 24);
2695 ndata
[4] = (peer
->pmax
[afi
][safi
] >> 16);
2696 ndata
[5] = (peer
->pmax
[afi
][safi
] >> 8);
2697 ndata
[6] = (peer
->pmax
[afi
][safi
]);
2699 SET_FLAG(peer
->sflags
, PEER_STATUS_PREFIX_OVERFLOW
);
2700 bgp_notify_send_with_data(peer
, BGP_NOTIFY_CEASE
,
2701 BGP_NOTIFY_CEASE_MAX_PREFIX
,
2705 /* Dynamic peers will just close their connection. */
2706 if (peer_dynamic_neighbor(peer
))
2709 /* restart timer start */
2710 if (peer
->pmax_restart
[afi
][safi
]) {
2711 peer
->v_pmax_restart
=
2712 peer
->pmax_restart
[afi
][safi
] * 60;
2714 if (bgp_debug_neighbor_events(peer
))
2716 "%s Maximum-prefix restart timer started for %d secs",
2717 peer
->host
, peer
->v_pmax_restart
);
2719 BGP_TIMER_ON(peer
->t_pmax_restart
,
2720 bgp_maximum_prefix_restart_timer
,
2721 peer
->v_pmax_restart
);
2726 UNSET_FLAG(peer
->af_sflags
[afi
][safi
],
2727 PEER_STATUS_PREFIX_LIMIT
);
2729 if (peer
->pcount
[afi
][safi
]
2730 > (peer
->pmax
[afi
][safi
] * peer
->pmax_threshold
[afi
][safi
] / 100)) {
2731 if (CHECK_FLAG(peer
->af_sflags
[afi
][safi
],
2732 PEER_STATUS_PREFIX_THRESHOLD
)
2737 "%%MAXPFX: No. of %s prefix received from %s reaches %ld, max %ld",
2738 afi_safi_print(afi
, safi
), peer
->host
,
2739 peer
->pcount
[afi
][safi
], peer
->pmax
[afi
][safi
]);
2740 SET_FLAG(peer
->af_sflags
[afi
][safi
],
2741 PEER_STATUS_PREFIX_THRESHOLD
);
2743 UNSET_FLAG(peer
->af_sflags
[afi
][safi
],
2744 PEER_STATUS_PREFIX_THRESHOLD
);
2748 /* Unconditionally remove the route from the RIB, without taking
2749 * damping into consideration (eg, because the session went down)
2751 void bgp_rib_remove(struct bgp_node
*rn
, struct bgp_path_info
*pi
,
2752 struct peer
*peer
, afi_t afi
, safi_t safi
)
2754 bgp_aggregate_decrement(peer
->bgp
, &rn
->p
, pi
, afi
, safi
);
2756 if (!CHECK_FLAG(pi
->flags
, BGP_PATH_HISTORY
))
2757 bgp_path_info_delete(rn
, pi
); /* keep historical info */
2759 bgp_process(peer
->bgp
, rn
, afi
, safi
);
2762 static void bgp_rib_withdraw(struct bgp_node
*rn
, struct bgp_path_info
*pi
,
2763 struct peer
*peer
, afi_t afi
, safi_t safi
,
2764 struct prefix_rd
*prd
)
2766 /* apply dampening, if result is suppressed, we'll be retaining
2767 * the bgp_path_info in the RIB for historical reference.
2769 if (CHECK_FLAG(peer
->bgp
->af_flags
[afi
][safi
], BGP_CONFIG_DAMPENING
)
2770 && peer
->sort
== BGP_PEER_EBGP
)
2771 if ((bgp_damp_withdraw(pi
, rn
, afi
, safi
, 0))
2772 == BGP_DAMP_SUPPRESSED
) {
2773 bgp_aggregate_decrement(peer
->bgp
, &rn
->p
, pi
, afi
,
2779 if (safi
== SAFI_MPLS_VPN
) {
2780 struct bgp_node
*prn
= NULL
;
2781 struct bgp_table
*table
= NULL
;
2783 prn
= bgp_node_get(peer
->bgp
->rib
[afi
][safi
],
2784 (struct prefix
*)prd
);
2785 if (bgp_node_has_bgp_path_info_data(prn
)) {
2786 table
= bgp_node_get_bgp_table_info(prn
);
2788 vnc_import_bgp_del_vnc_host_route_mode_resolve_nve(
2789 peer
->bgp
, prd
, table
, &rn
->p
, pi
);
2791 bgp_unlock_node(prn
);
2793 if ((afi
== AFI_IP
|| afi
== AFI_IP6
) && (safi
== SAFI_UNICAST
)) {
2794 if (CHECK_FLAG(pi
->flags
, BGP_PATH_SELECTED
)) {
2796 vnc_import_bgp_del_route(peer
->bgp
, &rn
->p
, pi
);
2797 vnc_import_bgp_exterior_del_route(peer
->bgp
, &rn
->p
,
2803 /* If this is an EVPN route, process for un-import. */
2804 if (safi
== SAFI_EVPN
)
2805 bgp_evpn_unimport_route(peer
->bgp
, afi
, safi
, &rn
->p
, pi
);
2807 bgp_rib_remove(rn
, pi
, peer
, afi
, safi
);
2810 struct bgp_path_info
*info_make(int type
, int sub_type
, unsigned short instance
,
2811 struct peer
*peer
, struct attr
*attr
,
2812 struct bgp_node
*rn
)
2814 struct bgp_path_info
*new;
2816 /* Make new BGP info. */
2817 new = XCALLOC(MTYPE_BGP_ROUTE
, sizeof(struct bgp_path_info
));
2819 new->instance
= instance
;
2820 new->sub_type
= sub_type
;
2823 new->uptime
= bgp_clock();
2828 static void overlay_index_update(struct attr
*attr
,
2829 struct eth_segment_id
*eth_s_id
,
2830 union gw_addr
*gw_ip
)
2835 if (eth_s_id
== NULL
) {
2836 memset(&(attr
->evpn_overlay
.eth_s_id
), 0,
2837 sizeof(struct eth_segment_id
));
2839 memcpy(&(attr
->evpn_overlay
.eth_s_id
), eth_s_id
,
2840 sizeof(struct eth_segment_id
));
2842 if (gw_ip
== NULL
) {
2843 memset(&(attr
->evpn_overlay
.gw_ip
), 0, sizeof(union gw_addr
));
2845 memcpy(&(attr
->evpn_overlay
.gw_ip
), gw_ip
,
2846 sizeof(union gw_addr
));
2850 static bool overlay_index_equal(afi_t afi
, struct bgp_path_info
*path
,
2851 struct eth_segment_id
*eth_s_id
,
2852 union gw_addr
*gw_ip
)
2854 struct eth_segment_id
*path_eth_s_id
, *path_eth_s_id_remote
;
2855 union gw_addr
*path_gw_ip
, *path_gw_ip_remote
;
2857 struct eth_segment_id esi
;
2861 if (afi
!= AFI_L2VPN
)
2864 memset(&temp
, 0, sizeof(temp
));
2865 path_eth_s_id
= &temp
.esi
;
2866 path_gw_ip
= &temp
.ip
;
2868 if (eth_s_id
== NULL
&& gw_ip
== NULL
)
2871 path_eth_s_id
= &(path
->attr
->evpn_overlay
.eth_s_id
);
2872 path_gw_ip
= &(path
->attr
->evpn_overlay
.gw_ip
);
2875 if (gw_ip
== NULL
) {
2876 memset(&temp
, 0, sizeof(temp
));
2877 path_gw_ip_remote
= &temp
.ip
;
2879 path_gw_ip_remote
= gw_ip
;
2881 if (eth_s_id
== NULL
) {
2882 memset(&temp
, 0, sizeof(temp
));
2883 path_eth_s_id_remote
= &temp
.esi
;
2885 path_eth_s_id_remote
= eth_s_id
;
2887 if (!memcmp(path_gw_ip
, path_gw_ip_remote
, sizeof(union gw_addr
)))
2890 return !memcmp(path_eth_s_id
, path_eth_s_id_remote
,
2891 sizeof(struct eth_segment_id
));
2894 /* Check if received nexthop is valid or not. */
2895 static int bgp_update_martian_nexthop(struct bgp
*bgp
, afi_t afi
, safi_t safi
,
2900 /* Only validated for unicast and multicast currently. */
2901 /* Also valid for EVPN where the nexthop is an IP address. */
2902 if (safi
!= SAFI_UNICAST
&& safi
!= SAFI_MULTICAST
&& safi
!= SAFI_EVPN
)
2905 /* If NEXT_HOP is present, validate it. */
2906 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_NEXT_HOP
)) {
2907 if (attr
->nexthop
.s_addr
== 0
2908 || IPV4_CLASS_DE(ntohl(attr
->nexthop
.s_addr
))
2909 || bgp_nexthop_self(bgp
, attr
->nexthop
))
2913 /* If MP_NEXTHOP is present, validate it. */
2914 /* Note: For IPv6 nexthops, we only validate the global (1st) nexthop;
2915 * there is code in bgp_attr.c to ignore the link-local (2nd) nexthop if
2916 * it is not an IPv6 link-local address.
2918 if (attr
->mp_nexthop_len
) {
2919 switch (attr
->mp_nexthop_len
) {
2920 case BGP_ATTR_NHLEN_IPV4
:
2921 case BGP_ATTR_NHLEN_VPNV4
:
2922 ret
= (attr
->mp_nexthop_global_in
.s_addr
== 0
2923 || IPV4_CLASS_DE(ntohl(
2924 attr
->mp_nexthop_global_in
.s_addr
))
2925 || bgp_nexthop_self(bgp
,
2926 attr
->mp_nexthop_global_in
));
2929 case BGP_ATTR_NHLEN_IPV6_GLOBAL
:
2930 case BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL
:
2931 case BGP_ATTR_NHLEN_VPNV6_GLOBAL
:
2932 ret
= (IN6_IS_ADDR_UNSPECIFIED(&attr
->mp_nexthop_global
)
2933 || IN6_IS_ADDR_LOOPBACK(&attr
->mp_nexthop_global
)
2934 || IN6_IS_ADDR_MULTICAST(
2935 &attr
->mp_nexthop_global
));
2947 int bgp_update(struct peer
*peer
, struct prefix
*p
, uint32_t addpath_id
,
2948 struct attr
*attr
, afi_t afi
, safi_t safi
, int type
,
2949 int sub_type
, struct prefix_rd
*prd
, mpls_label_t
*label
,
2950 uint32_t num_labels
, int soft_reconfig
,
2951 struct bgp_route_evpn
*evpn
)
2954 int aspath_loop_count
= 0;
2955 struct bgp_node
*rn
;
2957 struct attr new_attr
;
2958 struct attr
*attr_new
;
2959 struct bgp_path_info
*pi
;
2960 struct bgp_path_info
*new;
2961 struct bgp_path_info_extra
*extra
;
2963 char pfx_buf
[BGP_PRD_PATH_STRLEN
];
2965 int do_loop_check
= 1;
2966 int has_valid_label
= 0;
2968 int vnc_implicit_withdraw
= 0;
2972 memset(&new_attr
, 0, sizeof(struct attr
));
2973 new_attr
.label_index
= BGP_INVALID_LABEL_INDEX
;
2974 new_attr
.label
= MPLS_INVALID_LABEL
;
2977 rn
= bgp_afi_node_get(bgp
->rib
[afi
][safi
], afi
, safi
, p
, prd
);
2978 /* TODO: Check to see if we can get rid of "is_valid_label" */
2979 if (afi
== AFI_L2VPN
&& safi
== SAFI_EVPN
)
2980 has_valid_label
= (num_labels
> 0) ? 1 : 0;
2982 has_valid_label
= bgp_is_valid_label(label
);
2984 /* When peer's soft reconfiguration enabled. Record input packet in
2987 && CHECK_FLAG(peer
->af_flags
[afi
][safi
], PEER_FLAG_SOFT_RECONFIG
)
2988 && peer
!= bgp
->peer_self
)
2989 bgp_adj_in_set(rn
, peer
, attr
, addpath_id
);
2991 /* Check previously received route. */
2992 for (pi
= bgp_node_get_bgp_path_info(rn
); pi
; pi
= pi
->next
)
2993 if (pi
->peer
== peer
&& pi
->type
== type
2994 && pi
->sub_type
== sub_type
2995 && pi
->addpath_rx_id
== addpath_id
)
2998 /* AS path local-as loop check. */
2999 if (peer
->change_local_as
) {
3000 if (peer
->allowas_in
[afi
][safi
])
3001 aspath_loop_count
= peer
->allowas_in
[afi
][safi
];
3002 else if (!CHECK_FLAG(peer
->flags
,
3003 PEER_FLAG_LOCAL_AS_NO_PREPEND
))
3004 aspath_loop_count
= 1;
3006 if (aspath_loop_check(attr
->aspath
, peer
->change_local_as
)
3007 > aspath_loop_count
) {
3008 reason
= "as-path contains our own AS;";
3013 /* If the peer is configured for "allowas-in origin" and the last ASN in
3015 * as-path is our ASN then we do not need to call aspath_loop_check
3017 if (CHECK_FLAG(peer
->af_flags
[afi
][safi
], PEER_FLAG_ALLOWAS_IN_ORIGIN
))
3018 if (aspath_get_last_as(attr
->aspath
) == bgp
->as
)
3021 /* AS path loop check. */
3022 if (do_loop_check
) {
3023 if (aspath_loop_check(attr
->aspath
, bgp
->as
)
3024 > peer
->allowas_in
[afi
][safi
]
3025 || (CHECK_FLAG(bgp
->config
, BGP_CONFIG_CONFEDERATION
)
3026 && aspath_loop_check(attr
->aspath
, bgp
->confed_id
)
3027 > peer
->allowas_in
[afi
][safi
])) {
3028 reason
= "as-path contains our own AS;";
3033 /* Route reflector originator ID check. */
3034 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID
)
3035 && IPV4_ADDR_SAME(&bgp
->router_id
, &attr
->originator_id
)) {
3036 reason
= "originator is us;";
3040 /* Route reflector cluster ID check. */
3041 if (bgp_cluster_filter(peer
, attr
)) {
3042 reason
= "reflected from the same cluster;";
3046 /* Apply incoming filter. */
3047 if (bgp_input_filter(peer
, p
, attr
, afi
, safi
) == FILTER_DENY
) {
3052 bgp_attr_dup(&new_attr
, attr
);
3054 /* Apply incoming route-map.
3055 * NB: new_attr may now contain newly allocated values from route-map
3057 * commands, so we need bgp_attr_flush in the error paths, until we
3059 * the attr (which takes over the memory references) */
3060 if (bgp_input_modifier(peer
, p
, &new_attr
, afi
, safi
, NULL
)
3062 reason
= "route-map;";
3063 bgp_attr_flush(&new_attr
);
3067 if (peer
->sort
== BGP_PEER_EBGP
) {
3069 /* If we receive the graceful-shutdown community from an eBGP
3070 * peer we must lower local-preference */
3071 if (new_attr
.community
3072 && community_include(new_attr
.community
, COMMUNITY_GSHUT
)) {
3073 new_attr
.flag
|= ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
);
3074 new_attr
.local_pref
= BGP_GSHUT_LOCAL_PREF
;
3076 /* If graceful-shutdown is configured then add the GSHUT
3077 * community to all paths received from eBGP peers */
3078 } else if (bgp_flag_check(peer
->bgp
,
3079 BGP_FLAG_GRACEFUL_SHUTDOWN
)) {
3080 bgp_attr_add_gshut_community(&new_attr
);
3084 /* next hop check. */
3085 if (!CHECK_FLAG(peer
->flags
, PEER_FLAG_IS_RFAPI_HD
)
3086 && bgp_update_martian_nexthop(bgp
, afi
, safi
, &new_attr
)) {
3087 reason
= "martian or self next-hop;";
3088 bgp_attr_flush(&new_attr
);
3092 if (bgp_mac_entry_exists(p
) || bgp_mac_exist(&attr
->rmac
)) {
3093 reason
= "self mac;";
3097 attr_new
= bgp_attr_intern(&new_attr
);
3099 /* If the update is implicit withdraw. */
3101 pi
->uptime
= bgp_clock();
3102 same_attr
= attrhash_cmp(pi
->attr
, attr_new
);
3104 /* Same attribute comes in. */
3105 if (!CHECK_FLAG(pi
->flags
, BGP_PATH_REMOVED
)
3106 && attrhash_cmp(pi
->attr
, attr_new
)
3107 && (!has_valid_label
3108 || memcmp(&(bgp_path_info_extra_get(pi
))->label
, label
,
3109 num_labels
* sizeof(mpls_label_t
))
3111 && (overlay_index_equal(
3112 afi
, pi
, evpn
== NULL
? NULL
: &evpn
->eth_s_id
,
3113 evpn
== NULL
? NULL
: &evpn
->gw_ip
))) {
3114 if (CHECK_FLAG(bgp
->af_flags
[afi
][safi
],
3115 BGP_CONFIG_DAMPENING
)
3116 && peer
->sort
== BGP_PEER_EBGP
3117 && CHECK_FLAG(pi
->flags
, BGP_PATH_HISTORY
)) {
3118 if (bgp_debug_update(peer
, p
, NULL
, 1)) {
3119 bgp_debug_rdpfxpath2str(
3120 afi
, safi
, prd
, p
, label
,
3121 num_labels
, addpath_id
? 1 : 0,
3122 addpath_id
, pfx_buf
,
3124 zlog_debug("%s rcvd %s", peer
->host
,
3128 if (bgp_damp_update(pi
, rn
, afi
, safi
)
3129 != BGP_DAMP_SUPPRESSED
) {
3130 bgp_aggregate_increment(bgp
, p
, pi
, afi
,
3132 bgp_process(bgp
, rn
, afi
, safi
);
3134 } else /* Duplicate - odd */
3136 if (bgp_debug_update(peer
, p
, NULL
, 1)) {
3137 if (!peer
->rcvd_attr_printed
) {
3139 "%s rcvd UPDATE w/ attr: %s",
3141 peer
->rcvd_attr_str
);
3142 peer
->rcvd_attr_printed
= 1;
3145 bgp_debug_rdpfxpath2str(
3146 afi
, safi
, prd
, p
, label
,
3147 num_labels
, addpath_id
? 1 : 0,
3148 addpath_id
, pfx_buf
,
3151 "%s rcvd %s...duplicate ignored",
3152 peer
->host
, pfx_buf
);
3155 /* graceful restart STALE flag unset. */
3156 if (CHECK_FLAG(pi
->flags
, BGP_PATH_STALE
)) {
3157 bgp_path_info_unset_flag(
3158 rn
, pi
, BGP_PATH_STALE
);
3159 bgp_process(bgp
, rn
, afi
, safi
);
3163 bgp_unlock_node(rn
);
3164 bgp_attr_unintern(&attr_new
);
3169 /* Withdraw/Announce before we fully processed the withdraw */
3170 if (CHECK_FLAG(pi
->flags
, BGP_PATH_REMOVED
)) {
3171 if (bgp_debug_update(peer
, p
, NULL
, 1)) {
3172 bgp_debug_rdpfxpath2str(
3173 afi
, safi
, prd
, p
, label
, num_labels
,
3174 addpath_id
? 1 : 0, addpath_id
, pfx_buf
,
3177 "%s rcvd %s, flapped quicker than processing",
3178 peer
->host
, pfx_buf
);
3181 bgp_path_info_restore(rn
, pi
);
3184 /* Received Logging. */
3185 if (bgp_debug_update(peer
, p
, NULL
, 1)) {
3186 bgp_debug_rdpfxpath2str(afi
, safi
, prd
, p
, label
,
3187 num_labels
, addpath_id
? 1 : 0,
3188 addpath_id
, pfx_buf
,
3190 zlog_debug("%s rcvd %s", peer
->host
, pfx_buf
);
3193 /* graceful restart STALE flag unset. */
3194 if (CHECK_FLAG(pi
->flags
, BGP_PATH_STALE
))
3195 bgp_path_info_unset_flag(rn
, pi
, BGP_PATH_STALE
);
3197 /* The attribute is changed. */
3198 bgp_path_info_set_flag(rn
, pi
, BGP_PATH_ATTR_CHANGED
);
3200 /* implicit withdraw, decrement aggregate and pcount here.
3201 * only if update is accepted, they'll increment below.
3203 bgp_aggregate_decrement(bgp
, p
, pi
, afi
, safi
);
3205 /* Update bgp route dampening information. */
3206 if (CHECK_FLAG(bgp
->af_flags
[afi
][safi
], BGP_CONFIG_DAMPENING
)
3207 && peer
->sort
== BGP_PEER_EBGP
) {
3208 /* This is implicit withdraw so we should update
3211 if (!CHECK_FLAG(pi
->flags
, BGP_PATH_HISTORY
))
3212 bgp_damp_withdraw(pi
, rn
, afi
, safi
, 1);
3215 if (safi
== SAFI_MPLS_VPN
) {
3216 struct bgp_node
*prn
= NULL
;
3217 struct bgp_table
*table
= NULL
;
3219 prn
= bgp_node_get(bgp
->rib
[afi
][safi
],
3220 (struct prefix
*)prd
);
3221 if (bgp_node_has_bgp_path_info_data(prn
)) {
3222 table
= bgp_node_get_bgp_table_info(prn
);
3224 vnc_import_bgp_del_vnc_host_route_mode_resolve_nve(
3225 bgp
, prd
, table
, p
, pi
);
3227 bgp_unlock_node(prn
);
3229 if ((afi
== AFI_IP
|| afi
== AFI_IP6
)
3230 && (safi
== SAFI_UNICAST
)) {
3231 if (CHECK_FLAG(pi
->flags
, BGP_PATH_SELECTED
)) {
3233 * Implicit withdraw case.
3235 ++vnc_implicit_withdraw
;
3236 vnc_import_bgp_del_route(bgp
, p
, pi
);
3237 vnc_import_bgp_exterior_del_route(bgp
, p
, pi
);
3242 /* Special handling for EVPN update of an existing route. If the
3243 * extended community attribute has changed, we need to
3245 * the route using its existing extended community. It will be
3246 * subsequently processed for import with the new extended
3249 if (safi
== SAFI_EVPN
&& !same_attr
) {
3251 & ATTR_FLAG_BIT(BGP_ATTR_EXT_COMMUNITIES
))
3253 & ATTR_FLAG_BIT(BGP_ATTR_EXT_COMMUNITIES
))) {
3256 cmp
= ecommunity_cmp(pi
->attr
->ecommunity
,
3257 attr_new
->ecommunity
);
3259 if (bgp_debug_update(peer
, p
, NULL
, 1))
3261 "Change in EXT-COMM, existing %s new %s",
3263 pi
->attr
->ecommunity
),
3265 attr_new
->ecommunity
));
3266 bgp_evpn_unimport_route(bgp
, afi
, safi
,
3272 /* Update to new attribute. */
3273 bgp_attr_unintern(&pi
->attr
);
3274 pi
->attr
= attr_new
;
3276 /* Update MPLS label */
3277 if (has_valid_label
) {
3278 extra
= bgp_path_info_extra_get(pi
);
3279 if (extra
->label
!= label
) {
3280 memcpy(&extra
->label
, label
,
3281 num_labels
* sizeof(mpls_label_t
));
3282 extra
->num_labels
= num_labels
;
3284 if (!(afi
== AFI_L2VPN
&& safi
== SAFI_EVPN
))
3285 bgp_set_valid_label(&extra
->label
[0]);
3289 if ((afi
== AFI_IP
|| afi
== AFI_IP6
)
3290 && (safi
== SAFI_UNICAST
)) {
3291 if (vnc_implicit_withdraw
) {
3293 * Add back the route with its new attributes
3295 * The route is still selected, until the route
3297 * queued by bgp_process actually runs. We have
3299 * update to the VNC side immediately to avoid
3301 * configuration changes (e.g., route-map
3303 * trigger re-importation of the entire RIB.
3305 vnc_import_bgp_add_route(bgp
, p
, pi
);
3306 vnc_import_bgp_exterior_add_route(bgp
, p
, pi
);
3310 /* Update Overlay Index */
3311 if (afi
== AFI_L2VPN
) {
3312 overlay_index_update(
3313 pi
->attr
, evpn
== NULL
? NULL
: &evpn
->eth_s_id
,
3314 evpn
== NULL
? NULL
: &evpn
->gw_ip
);
3317 /* Update bgp route dampening information. */
3318 if (CHECK_FLAG(bgp
->af_flags
[afi
][safi
], BGP_CONFIG_DAMPENING
)
3319 && peer
->sort
== BGP_PEER_EBGP
) {
3320 /* Now we do normal update dampening. */
3321 ret
= bgp_damp_update(pi
, rn
, afi
, safi
);
3322 if (ret
== BGP_DAMP_SUPPRESSED
) {
3323 bgp_unlock_node(rn
);
3328 /* Nexthop reachability check - for unicast and
3329 * labeled-unicast.. */
3330 if ((afi
== AFI_IP
|| afi
== AFI_IP6
)
3331 && (safi
== SAFI_UNICAST
|| safi
== SAFI_LABELED_UNICAST
)) {
3332 if (peer
->sort
== BGP_PEER_EBGP
&& peer
->ttl
== 1
3333 && !CHECK_FLAG(peer
->flags
,
3334 PEER_FLAG_DISABLE_CONNECTED_CHECK
)
3336 bgp
, BGP_FLAG_DISABLE_NH_CONNECTED_CHK
))
3341 struct bgp
*bgp_nexthop
= bgp
;
3343 if (pi
->extra
&& pi
->extra
->bgp_orig
)
3344 bgp_nexthop
= pi
->extra
->bgp_orig
;
3346 if (bgp_find_or_add_nexthop(bgp
, bgp_nexthop
, afi
, pi
,
3348 || CHECK_FLAG(peer
->flags
, PEER_FLAG_IS_RFAPI_HD
))
3349 bgp_path_info_set_flag(rn
, pi
, BGP_PATH_VALID
);
3351 if (BGP_DEBUG(nht
, NHT
)) {
3352 char buf1
[INET6_ADDRSTRLEN
];
3354 (const void *)&attr_new
3356 buf1
, INET6_ADDRSTRLEN
);
3357 zlog_debug("%s(%s): NH unresolved",
3358 __FUNCTION__
, buf1
);
3360 bgp_path_info_unset_flag(rn
, pi
,
3364 bgp_path_info_set_flag(rn
, pi
, BGP_PATH_VALID
);
3367 if (safi
== SAFI_MPLS_VPN
) {
3368 struct bgp_node
*prn
= NULL
;
3369 struct bgp_table
*table
= NULL
;
3371 prn
= bgp_node_get(bgp
->rib
[afi
][safi
],
3372 (struct prefix
*)prd
);
3373 if (bgp_node_has_bgp_path_info_data(prn
)) {
3374 table
= bgp_node_get_bgp_table_info(prn
);
3376 vnc_import_bgp_add_vnc_host_route_mode_resolve_nve(
3377 bgp
, prd
, table
, p
, pi
);
3379 bgp_unlock_node(prn
);
3383 /* If this is an EVPN route and some attribute has changed,
3385 * route for import. If the extended community has changed, we
3387 * have done the un-import earlier and the import would result
3389 * route getting injected into appropriate L2 VNIs. If it is
3391 * some other attribute change, the import will result in
3393 * the attributes for the route in the VNI(s).
3395 if (safi
== SAFI_EVPN
&& !same_attr
)
3396 bgp_evpn_import_route(bgp
, afi
, safi
, p
, pi
);
3398 /* Process change. */
3399 bgp_aggregate_increment(bgp
, p
, pi
, afi
, safi
);
3401 bgp_process(bgp
, rn
, afi
, safi
);
3402 bgp_unlock_node(rn
);
3404 if (SAFI_UNICAST
== safi
3405 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
3406 || bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
3408 vpn_leak_from_vrf_update(bgp_get_default(), bgp
, pi
);
3410 if ((SAFI_MPLS_VPN
== safi
)
3411 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
3413 vpn_leak_to_vrf_update(bgp
, pi
);
3417 if (SAFI_MPLS_VPN
== safi
) {
3418 mpls_label_t label_decoded
= decode_label(label
);
3420 rfapiProcessUpdate(peer
, NULL
, p
, prd
, attr
, afi
, safi
,
3421 type
, sub_type
, &label_decoded
);
3423 if (SAFI_ENCAP
== safi
) {
3424 rfapiProcessUpdate(peer
, NULL
, p
, prd
, attr
, afi
, safi
,
3425 type
, sub_type
, NULL
);
3430 } // End of implicit withdraw
3432 /* Received Logging. */
3433 if (bgp_debug_update(peer
, p
, NULL
, 1)) {
3434 if (!peer
->rcvd_attr_printed
) {
3435 zlog_debug("%s rcvd UPDATE w/ attr: %s", peer
->host
,
3436 peer
->rcvd_attr_str
);
3437 peer
->rcvd_attr_printed
= 1;
3440 bgp_debug_rdpfxpath2str(afi
, safi
, prd
, p
, label
, num_labels
,
3441 addpath_id
? 1 : 0, addpath_id
, pfx_buf
,
3443 zlog_debug("%s rcvd %s", peer
->host
, pfx_buf
);
3446 /* Make new BGP info. */
3447 new = info_make(type
, sub_type
, 0, peer
, attr_new
, rn
);
3449 /* Update MPLS label */
3450 if (has_valid_label
) {
3451 extra
= bgp_path_info_extra_get(new);
3452 if (extra
->label
!= label
) {
3453 memcpy(&extra
->label
, label
,
3454 num_labels
* sizeof(mpls_label_t
));
3455 extra
->num_labels
= num_labels
;
3457 if (!(afi
== AFI_L2VPN
&& safi
== SAFI_EVPN
))
3458 bgp_set_valid_label(&extra
->label
[0]);
3461 /* Update Overlay Index */
3462 if (afi
== AFI_L2VPN
) {
3463 overlay_index_update(new->attr
,
3464 evpn
== NULL
? NULL
: &evpn
->eth_s_id
,
3465 evpn
== NULL
? NULL
: &evpn
->gw_ip
);
3467 /* Nexthop reachability check. */
3468 if ((afi
== AFI_IP
|| afi
== AFI_IP6
)
3469 && (safi
== SAFI_UNICAST
|| safi
== SAFI_LABELED_UNICAST
)) {
3470 if (peer
->sort
== BGP_PEER_EBGP
&& peer
->ttl
== 1
3471 && !CHECK_FLAG(peer
->flags
,
3472 PEER_FLAG_DISABLE_CONNECTED_CHECK
)
3473 && !bgp_flag_check(bgp
, BGP_FLAG_DISABLE_NH_CONNECTED_CHK
))
3478 if (bgp_find_or_add_nexthop(bgp
, bgp
, afi
, new, NULL
, connected
)
3479 || CHECK_FLAG(peer
->flags
, PEER_FLAG_IS_RFAPI_HD
))
3480 bgp_path_info_set_flag(rn
, new, BGP_PATH_VALID
);
3482 if (BGP_DEBUG(nht
, NHT
)) {
3483 char buf1
[INET6_ADDRSTRLEN
];
3485 (const void *)&attr_new
->nexthop
,
3486 buf1
, INET6_ADDRSTRLEN
);
3487 zlog_debug("%s(%s): NH unresolved",
3488 __FUNCTION__
, buf1
);
3490 bgp_path_info_unset_flag(rn
, new, BGP_PATH_VALID
);
3493 bgp_path_info_set_flag(rn
, new, BGP_PATH_VALID
);
3496 new->addpath_rx_id
= addpath_id
;
3498 /* Increment prefix */
3499 bgp_aggregate_increment(bgp
, p
, new, afi
, safi
);
3501 /* Register new BGP information. */
3502 bgp_path_info_add(rn
, new);
3504 /* route_node_get lock */
3505 bgp_unlock_node(rn
);
3508 if (safi
== SAFI_MPLS_VPN
) {
3509 struct bgp_node
*prn
= NULL
;
3510 struct bgp_table
*table
= NULL
;
3512 prn
= bgp_node_get(bgp
->rib
[afi
][safi
], (struct prefix
*)prd
);
3513 if (bgp_node_has_bgp_path_info_data(prn
)) {
3514 table
= bgp_node_get_bgp_table_info(prn
);
3516 vnc_import_bgp_add_vnc_host_route_mode_resolve_nve(
3517 bgp
, prd
, table
, p
, new);
3519 bgp_unlock_node(prn
);
3523 /* If maximum prefix count is configured and current prefix
3525 if (bgp_maximum_prefix_overflow(peer
, afi
, safi
, 0))
3528 /* If this is an EVPN route, process for import. */
3529 if (safi
== SAFI_EVPN
)
3530 bgp_evpn_import_route(bgp
, afi
, safi
, p
, new);
3532 /* Process change. */
3533 bgp_process(bgp
, rn
, afi
, safi
);
3535 if (SAFI_UNICAST
== safi
3536 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
3537 || bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
3538 vpn_leak_from_vrf_update(bgp_get_default(), bgp
, new);
3540 if ((SAFI_MPLS_VPN
== safi
)
3541 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
3543 vpn_leak_to_vrf_update(bgp
, new);
3546 if (SAFI_MPLS_VPN
== safi
) {
3547 mpls_label_t label_decoded
= decode_label(label
);
3549 rfapiProcessUpdate(peer
, NULL
, p
, prd
, attr
, afi
, safi
, type
,
3550 sub_type
, &label_decoded
);
3552 if (SAFI_ENCAP
== safi
) {
3553 rfapiProcessUpdate(peer
, NULL
, p
, prd
, attr
, afi
, safi
, type
,
3560 /* This BGP update is filtered. Log the reason then update BGP
3563 if (bgp_debug_update(peer
, p
, NULL
, 1)) {
3564 if (!peer
->rcvd_attr_printed
) {
3565 zlog_debug("%s rcvd UPDATE w/ attr: %s", peer
->host
,
3566 peer
->rcvd_attr_str
);
3567 peer
->rcvd_attr_printed
= 1;
3570 bgp_debug_rdpfxpath2str(afi
, safi
, prd
, p
, label
, num_labels
,
3571 addpath_id
? 1 : 0, addpath_id
, pfx_buf
,
3573 zlog_debug("%s rcvd UPDATE about %s -- DENIED due to: %s",
3574 peer
->host
, pfx_buf
, reason
);
3578 /* If this is an EVPN route, un-import it as it is now filtered.
3580 if (safi
== SAFI_EVPN
)
3581 bgp_evpn_unimport_route(bgp
, afi
, safi
, p
, pi
);
3583 if (SAFI_UNICAST
== safi
3584 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
3585 || bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
3587 vpn_leak_from_vrf_withdraw(bgp_get_default(), bgp
, pi
);
3589 if ((SAFI_MPLS_VPN
== safi
)
3590 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
3592 vpn_leak_to_vrf_withdraw(bgp
, pi
);
3595 bgp_rib_remove(rn
, pi
, peer
, afi
, safi
);
3598 bgp_unlock_node(rn
);
3602 * Filtered update is treated as an implicit withdrawal (see
3604 * a few lines above)
3606 if ((SAFI_MPLS_VPN
== safi
) || (SAFI_ENCAP
== safi
)) {
3607 rfapiProcessWithdraw(peer
, NULL
, p
, prd
, NULL
, afi
, safi
, type
,
3615 int bgp_withdraw(struct peer
*peer
, struct prefix
*p
, uint32_t addpath_id
,
3616 struct attr
*attr
, afi_t afi
, safi_t safi
, int type
,
3617 int sub_type
, struct prefix_rd
*prd
, mpls_label_t
*label
,
3618 uint32_t num_labels
, struct bgp_route_evpn
*evpn
)
3621 char pfx_buf
[BGP_PRD_PATH_STRLEN
];
3622 struct bgp_node
*rn
;
3623 struct bgp_path_info
*pi
;
3626 if ((SAFI_MPLS_VPN
== safi
) || (SAFI_ENCAP
== safi
)) {
3627 rfapiProcessWithdraw(peer
, NULL
, p
, prd
, NULL
, afi
, safi
, type
,
3635 rn
= bgp_afi_node_get(bgp
->rib
[afi
][safi
], afi
, safi
, p
, prd
);
3637 /* If peer is soft reconfiguration enabled. Record input packet for
3638 * further calculation.
3640 * Cisco IOS 12.4(24)T4 on session establishment sends withdraws for all
3641 * routes that are filtered. This tanks out Quagga RS pretty badly due
3643 * the iteration over all RS clients.
3644 * Since we need to remove the entry from adj_in anyway, do that first
3646 * if there was no entry, we don't need to do anything more.
3648 if (CHECK_FLAG(peer
->af_flags
[afi
][safi
], PEER_FLAG_SOFT_RECONFIG
)
3649 && peer
!= bgp
->peer_self
)
3650 if (!bgp_adj_in_unset(rn
, peer
, addpath_id
)) {
3651 if (bgp_debug_update(peer
, p
, NULL
, 1)) {
3652 bgp_debug_rdpfxpath2str(
3653 afi
, safi
, prd
, p
, label
, num_labels
,
3654 addpath_id
? 1 : 0, addpath_id
, pfx_buf
,
3657 "%s withdrawing route %s not in adj-in",
3658 peer
->host
, pfx_buf
);
3660 bgp_unlock_node(rn
);
3664 /* Lookup withdrawn route. */
3665 for (pi
= bgp_node_get_bgp_path_info(rn
); pi
; pi
= pi
->next
)
3666 if (pi
->peer
== peer
&& pi
->type
== type
3667 && pi
->sub_type
== sub_type
3668 && pi
->addpath_rx_id
== addpath_id
)
3672 if (bgp_debug_update(peer
, p
, NULL
, 1)) {
3673 bgp_debug_rdpfxpath2str(afi
, safi
, prd
, p
, label
, num_labels
,
3674 addpath_id
? 1 : 0, addpath_id
, pfx_buf
,
3676 zlog_debug("%s rcvd UPDATE about %s -- withdrawn", peer
->host
,
3680 /* Withdraw specified route from routing table. */
3681 if (pi
&& !CHECK_FLAG(pi
->flags
, BGP_PATH_HISTORY
)) {
3682 bgp_rib_withdraw(rn
, pi
, peer
, afi
, safi
, prd
);
3683 if (SAFI_UNICAST
== safi
3684 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
3685 || bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
3686 vpn_leak_from_vrf_withdraw(bgp_get_default(), bgp
, pi
);
3688 if ((SAFI_MPLS_VPN
== safi
)
3689 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
3691 vpn_leak_to_vrf_withdraw(bgp
, pi
);
3693 } else if (bgp_debug_update(peer
, p
, NULL
, 1)) {
3694 bgp_debug_rdpfxpath2str(afi
, safi
, prd
, p
, label
, num_labels
,
3695 addpath_id
? 1 : 0, addpath_id
, pfx_buf
,
3697 zlog_debug("%s Can't find the route %s", peer
->host
, pfx_buf
);
3700 /* Unlock bgp_node_get() lock. */
3701 bgp_unlock_node(rn
);
3706 void bgp_default_originate(struct peer
*peer
, afi_t afi
, safi_t safi
,
3709 struct update_subgroup
*subgrp
;
3710 subgrp
= peer_subgroup(peer
, afi
, safi
);
3711 subgroup_default_originate(subgrp
, withdraw
);
3716 * bgp_stop_announce_route_timer
3718 void bgp_stop_announce_route_timer(struct peer_af
*paf
)
3720 if (!paf
->t_announce_route
)
3723 THREAD_TIMER_OFF(paf
->t_announce_route
);
3727 * bgp_announce_route_timer_expired
3729 * Callback that is invoked when the route announcement timer for a
3732 static int bgp_announce_route_timer_expired(struct thread
*t
)
3734 struct peer_af
*paf
;
3737 paf
= THREAD_ARG(t
);
3740 if (peer
->status
!= Established
)
3743 if (!peer
->afc_nego
[paf
->afi
][paf
->safi
])
3746 peer_af_announce_route(paf
, 1);
3751 * bgp_announce_route
3753 * *Triggers* announcement of routes of a given AFI/SAFI to a peer.
3755 void bgp_announce_route(struct peer
*peer
, afi_t afi
, safi_t safi
)
3757 struct peer_af
*paf
;
3758 struct update_subgroup
*subgrp
;
3760 paf
= peer_af_find(peer
, afi
, safi
);
3763 subgrp
= PAF_SUBGRP(paf
);
3766 * Ignore if subgroup doesn't exist (implies AF is not negotiated)
3767 * or a refresh has already been triggered.
3769 if (!subgrp
|| paf
->t_announce_route
)
3773 * Start a timer to stagger/delay the announce. This serves
3774 * two purposes - announcement can potentially be combined for
3775 * multiple peers and the announcement doesn't happen in the
3778 thread_add_timer_msec(bm
->master
, bgp_announce_route_timer_expired
, paf
,
3779 (subgrp
->peer_count
== 1)
3780 ? BGP_ANNOUNCE_ROUTE_SHORT_DELAY_MS
3781 : BGP_ANNOUNCE_ROUTE_DELAY_MS
,
3782 &paf
->t_announce_route
);
3786 * Announce routes from all AF tables to a peer.
3788 * This should ONLY be called when there is a need to refresh the
3789 * routes to the peer based on a policy change for this peer alone
3790 * or a route refresh request received from the peer.
3791 * The operation will result in splitting the peer from its existing
3792 * subgroups and putting it in new subgroups.
3794 void bgp_announce_route_all(struct peer
*peer
)
3799 FOREACH_AFI_SAFI (afi
, safi
)
3800 bgp_announce_route(peer
, afi
, safi
);
3803 static void bgp_soft_reconfig_table(struct peer
*peer
, afi_t afi
, safi_t safi
,
3804 struct bgp_table
*table
,
3805 struct prefix_rd
*prd
)
3808 struct bgp_node
*rn
;
3809 struct bgp_adj_in
*ain
;
3812 table
= peer
->bgp
->rib
[afi
][safi
];
3814 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
))
3815 for (ain
= rn
->adj_in
; ain
; ain
= ain
->next
) {
3816 if (ain
->peer
!= peer
)
3819 struct bgp_path_info
*pi
=
3820 bgp_node_get_bgp_path_info(rn
);
3821 uint32_t num_labels
= 0;
3822 mpls_label_t
*label_pnt
= NULL
;
3823 struct bgp_route_evpn evpn
;
3825 if (pi
&& pi
->extra
)
3826 num_labels
= pi
->extra
->num_labels
;
3828 label_pnt
= &pi
->extra
->label
[0];
3830 memcpy(&evpn
, &pi
->attr
->evpn_overlay
,
3833 memset(&evpn
, 0, sizeof(evpn
));
3835 ret
= bgp_update(peer
, &rn
->p
, ain
->addpath_rx_id
,
3836 ain
->attr
, afi
, safi
, ZEBRA_ROUTE_BGP
,
3837 BGP_ROUTE_NORMAL
, prd
, label_pnt
,
3838 num_labels
, 1, &evpn
);
3841 bgp_unlock_node(rn
);
3847 void bgp_soft_reconfig_in(struct peer
*peer
, afi_t afi
, safi_t safi
)
3849 struct bgp_node
*rn
;
3850 struct bgp_table
*table
;
3852 if (peer
->status
!= Established
)
3855 if ((safi
!= SAFI_MPLS_VPN
) && (safi
!= SAFI_ENCAP
)
3856 && (safi
!= SAFI_EVPN
))
3857 bgp_soft_reconfig_table(peer
, afi
, safi
, NULL
, NULL
);
3859 for (rn
= bgp_table_top(peer
->bgp
->rib
[afi
][safi
]); rn
;
3860 rn
= bgp_route_next(rn
)) {
3861 table
= bgp_node_get_bgp_table_info(rn
);
3862 if (table
!= NULL
) {
3863 struct prefix_rd prd
;
3865 prd
.family
= AF_UNSPEC
;
3867 memcpy(&prd
.val
, rn
->p
.u
.val
, 8);
3869 bgp_soft_reconfig_table(peer
, afi
, safi
, table
,
3876 struct bgp_clear_node_queue
{
3877 struct bgp_node
*rn
;
3880 static wq_item_status
bgp_clear_route_node(struct work_queue
*wq
, void *data
)
3882 struct bgp_clear_node_queue
*cnq
= data
;
3883 struct bgp_node
*rn
= cnq
->rn
;
3884 struct peer
*peer
= wq
->spec
.data
;
3885 struct bgp_path_info
*pi
;
3887 afi_t afi
= bgp_node_table(rn
)->afi
;
3888 safi_t safi
= bgp_node_table(rn
)->safi
;
3893 /* It is possible that we have multiple paths for a prefix from a peer
3894 * if that peer is using AddPath.
3896 for (pi
= bgp_node_get_bgp_path_info(rn
); pi
; pi
= pi
->next
) {
3897 if (pi
->peer
!= peer
)
3900 /* graceful restart STALE flag set. */
3901 if (CHECK_FLAG(peer
->sflags
, PEER_STATUS_NSF_WAIT
)
3902 && peer
->nsf
[afi
][safi
]
3903 && !CHECK_FLAG(pi
->flags
, BGP_PATH_STALE
)
3904 && !CHECK_FLAG(pi
->flags
, BGP_PATH_UNUSEABLE
))
3905 bgp_path_info_set_flag(rn
, pi
, BGP_PATH_STALE
);
3907 /* If this is an EVPN route, process for
3909 if (safi
== SAFI_EVPN
)
3910 bgp_evpn_unimport_route(bgp
, afi
, safi
, &rn
->p
,
3912 /* Handle withdraw for VRF route-leaking and L3VPN */
3913 if (SAFI_UNICAST
== safi
3914 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
||
3915 bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
3916 vpn_leak_from_vrf_withdraw(bgp_get_default(),
3919 if (SAFI_MPLS_VPN
== safi
&&
3920 bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
) {
3921 vpn_leak_to_vrf_withdraw(bgp
, pi
);
3924 bgp_rib_remove(rn
, pi
, peer
, afi
, safi
);
3930 static void bgp_clear_node_queue_del(struct work_queue
*wq
, void *data
)
3932 struct bgp_clear_node_queue
*cnq
= data
;
3933 struct bgp_node
*rn
= cnq
->rn
;
3934 struct bgp_table
*table
= bgp_node_table(rn
);
3936 bgp_unlock_node(rn
);
3937 bgp_table_unlock(table
);
3938 XFREE(MTYPE_BGP_CLEAR_NODE_QUEUE
, cnq
);
3941 static void bgp_clear_node_complete(struct work_queue
*wq
)
3943 struct peer
*peer
= wq
->spec
.data
;
3945 /* Tickle FSM to start moving again */
3946 BGP_EVENT_ADD(peer
, Clearing_Completed
);
3948 peer_unlock(peer
); /* bgp_clear_route */
3951 static void bgp_clear_node_queue_init(struct peer
*peer
)
3953 char wname
[sizeof("clear xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx")];
3955 snprintf(wname
, sizeof(wname
), "clear %s", peer
->host
);
3956 #undef CLEAR_QUEUE_NAME_LEN
3958 peer
->clear_node_queue
= work_queue_new(bm
->master
, wname
);
3959 peer
->clear_node_queue
->spec
.hold
= 10;
3960 peer
->clear_node_queue
->spec
.workfunc
= &bgp_clear_route_node
;
3961 peer
->clear_node_queue
->spec
.del_item_data
= &bgp_clear_node_queue_del
;
3962 peer
->clear_node_queue
->spec
.completion_func
= &bgp_clear_node_complete
;
3963 peer
->clear_node_queue
->spec
.max_retries
= 0;
3965 /* we only 'lock' this peer reference when the queue is actually active
3967 peer
->clear_node_queue
->spec
.data
= peer
;
3970 static void bgp_clear_route_table(struct peer
*peer
, afi_t afi
, safi_t safi
,
3971 struct bgp_table
*table
)
3973 struct bgp_node
*rn
;
3974 int force
= bm
->process_main_queue
? 0 : 1;
3977 table
= peer
->bgp
->rib
[afi
][safi
];
3979 /* If still no table => afi/safi isn't configured at all or smth. */
3983 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
)) {
3984 struct bgp_path_info
*pi
, *next
;
3985 struct bgp_adj_in
*ain
;
3986 struct bgp_adj_in
*ain_next
;
3988 /* XXX:TODO: This is suboptimal, every non-empty route_node is
3989 * queued for every clearing peer, regardless of whether it is
3990 * relevant to the peer at hand.
3992 * Overview: There are 3 different indices which need to be
3993 * scrubbed, potentially, when a peer is removed:
3995 * 1 peer's routes visible via the RIB (ie accepted routes)
3996 * 2 peer's routes visible by the (optional) peer's adj-in index
3997 * 3 other routes visible by the peer's adj-out index
3999 * 3 there is no hurry in scrubbing, once the struct peer is
4000 * removed from bgp->peer, we could just GC such deleted peer's
4001 * adj-outs at our leisure.
4003 * 1 and 2 must be 'scrubbed' in some way, at least made
4004 * invisible via RIB index before peer session is allowed to be
4005 * brought back up. So one needs to know when such a 'search' is
4010 * - there'd be a single global queue or a single RIB walker
4011 * - rather than tracking which route_nodes still need to be
4012 * examined on a peer basis, we'd track which peers still
4015 * Given that our per-peer prefix-counts now should be reliable,
4016 * this may actually be achievable. It doesn't seem to be a huge
4017 * problem at this time,
4019 * It is possible that we have multiple paths for a prefix from
4021 * if that peer is using AddPath.
4025 ain_next
= ain
->next
;
4027 if (ain
->peer
== peer
) {
4028 bgp_adj_in_remove(rn
, ain
);
4029 bgp_unlock_node(rn
);
4035 for (pi
= bgp_node_get_bgp_path_info(rn
); pi
; pi
= next
) {
4037 if (pi
->peer
!= peer
)
4041 bgp_path_info_reap(rn
, pi
);
4043 struct bgp_clear_node_queue
*cnq
;
4045 /* both unlocked in bgp_clear_node_queue_del */
4046 bgp_table_lock(bgp_node_table(rn
));
4049 MTYPE_BGP_CLEAR_NODE_QUEUE
,
4050 sizeof(struct bgp_clear_node_queue
));
4052 work_queue_add(peer
->clear_node_queue
, cnq
);
4060 void bgp_clear_route(struct peer
*peer
, afi_t afi
, safi_t safi
)
4062 struct bgp_node
*rn
;
4063 struct bgp_table
*table
;
4065 if (peer
->clear_node_queue
== NULL
)
4066 bgp_clear_node_queue_init(peer
);
4068 /* bgp_fsm.c keeps sessions in state Clearing, not transitioning to
4069 * Idle until it receives a Clearing_Completed event. This protects
4070 * against peers which flap faster than we can we clear, which could
4073 * a) race with routes from the new session being installed before
4074 * clear_route_node visits the node (to delete the route of that
4076 * b) resource exhaustion, clear_route_node likely leads to an entry
4077 * on the process_main queue. Fast-flapping could cause that queue
4081 /* lock peer in assumption that clear-node-queue will get nodes; if so,
4082 * the unlock will happen upon work-queue completion; other wise, the
4083 * unlock happens at the end of this function.
4085 if (!peer
->clear_node_queue
->thread
)
4088 if (safi
!= SAFI_MPLS_VPN
&& safi
!= SAFI_ENCAP
&& safi
!= SAFI_EVPN
)
4089 bgp_clear_route_table(peer
, afi
, safi
, NULL
);
4091 for (rn
= bgp_table_top(peer
->bgp
->rib
[afi
][safi
]); rn
;
4092 rn
= bgp_route_next(rn
)) {
4093 table
= bgp_node_get_bgp_table_info(rn
);
4097 bgp_clear_route_table(peer
, afi
, safi
, table
);
4100 /* unlock if no nodes got added to the clear-node-queue. */
4101 if (!peer
->clear_node_queue
->thread
)
4105 void bgp_clear_route_all(struct peer
*peer
)
4110 FOREACH_AFI_SAFI (afi
, safi
)
4111 bgp_clear_route(peer
, afi
, safi
);
4114 rfapiProcessPeerDown(peer
);
4118 void bgp_clear_adj_in(struct peer
*peer
, afi_t afi
, safi_t safi
)
4120 struct bgp_table
*table
;
4121 struct bgp_node
*rn
;
4122 struct bgp_adj_in
*ain
;
4123 struct bgp_adj_in
*ain_next
;
4125 table
= peer
->bgp
->rib
[afi
][safi
];
4127 /* It is possible that we have multiple paths for a prefix from a peer
4128 * if that peer is using AddPath.
4130 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
)) {
4134 ain_next
= ain
->next
;
4136 if (ain
->peer
== peer
) {
4137 bgp_adj_in_remove(rn
, ain
);
4138 bgp_unlock_node(rn
);
4146 void bgp_clear_stale_route(struct peer
*peer
, afi_t afi
, safi_t safi
)
4148 struct bgp_node
*rn
;
4149 struct bgp_path_info
*pi
;
4150 struct bgp_table
*table
;
4152 if (safi
== SAFI_MPLS_VPN
) {
4153 for (rn
= bgp_table_top(peer
->bgp
->rib
[afi
][safi
]); rn
;
4154 rn
= bgp_route_next(rn
)) {
4155 struct bgp_node
*rm
;
4157 /* look for neighbor in tables */
4158 table
= bgp_node_get_bgp_table_info(rn
);
4162 for (rm
= bgp_table_top(table
); rm
;
4163 rm
= bgp_route_next(rm
))
4164 for (pi
= bgp_node_get_bgp_path_info(rm
); pi
;
4166 if (pi
->peer
!= peer
)
4168 if (!CHECK_FLAG(pi
->flags
,
4172 bgp_rib_remove(rm
, pi
, peer
, afi
, safi
);
4177 for (rn
= bgp_table_top(peer
->bgp
->rib
[afi
][safi
]); rn
;
4178 rn
= bgp_route_next(rn
))
4179 for (pi
= bgp_node_get_bgp_path_info(rn
); pi
;
4181 if (pi
->peer
!= peer
)
4183 if (!CHECK_FLAG(pi
->flags
, BGP_PATH_STALE
))
4185 bgp_rib_remove(rn
, pi
, peer
, afi
, safi
);
4191 int bgp_outbound_policy_exists(struct peer
*peer
, struct bgp_filter
*filter
)
4193 if (peer
->sort
== BGP_PEER_EBGP
4194 && (ROUTE_MAP_OUT_NAME(filter
) || PREFIX_LIST_OUT_NAME(filter
)
4195 || FILTER_LIST_OUT_NAME(filter
)
4196 || DISTRIBUTE_OUT_NAME(filter
)))
4201 int bgp_inbound_policy_exists(struct peer
*peer
, struct bgp_filter
*filter
)
4203 if (peer
->sort
== BGP_PEER_EBGP
4204 && (ROUTE_MAP_IN_NAME(filter
) || PREFIX_LIST_IN_NAME(filter
)
4205 || FILTER_LIST_IN_NAME(filter
)
4206 || DISTRIBUTE_IN_NAME(filter
)))
4211 static void bgp_cleanup_table(struct bgp
*bgp
, struct bgp_table
*table
,
4214 struct bgp_node
*rn
;
4215 struct bgp_path_info
*pi
;
4216 struct bgp_path_info
*next
;
4218 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
))
4219 for (pi
= bgp_node_get_bgp_path_info(rn
); pi
; pi
= next
) {
4222 /* Unimport EVPN routes from VRFs */
4223 if (safi
== SAFI_EVPN
)
4224 bgp_evpn_unimport_route(bgp
, AFI_L2VPN
,
4228 if (CHECK_FLAG(pi
->flags
, BGP_PATH_SELECTED
)
4229 && pi
->type
== ZEBRA_ROUTE_BGP
4230 && (pi
->sub_type
== BGP_ROUTE_NORMAL
4231 || pi
->sub_type
== BGP_ROUTE_AGGREGATE
4232 || pi
->sub_type
== BGP_ROUTE_IMPORTED
)) {
4234 if (bgp_fibupd_safi(safi
))
4235 bgp_zebra_withdraw(&rn
->p
, pi
, bgp
,
4237 bgp_path_info_reap(rn
, pi
);
4242 /* Delete all kernel routes. */
4243 void bgp_cleanup_routes(struct bgp
*bgp
)
4246 struct bgp_node
*rn
;
4247 struct bgp_table
*table
;
4249 for (afi
= AFI_IP
; afi
< AFI_MAX
; ++afi
) {
4250 if (afi
== AFI_L2VPN
)
4252 bgp_cleanup_table(bgp
, bgp
->rib
[afi
][SAFI_UNICAST
],
4255 * VPN and ENCAP and EVPN tables are two-level (RD is top level)
4257 if (afi
!= AFI_L2VPN
) {
4259 safi
= SAFI_MPLS_VPN
;
4260 for (rn
= bgp_table_top(bgp
->rib
[afi
][safi
]); rn
;
4261 rn
= bgp_route_next(rn
)) {
4262 table
= bgp_node_get_bgp_table_info(rn
);
4263 if (table
!= NULL
) {
4264 bgp_cleanup_table(bgp
, table
, safi
);
4265 bgp_table_finish(&table
);
4266 bgp_node_set_bgp_table_info(rn
, NULL
);
4267 bgp_unlock_node(rn
);
4271 for (rn
= bgp_table_top(bgp
->rib
[afi
][safi
]); rn
;
4272 rn
= bgp_route_next(rn
)) {
4273 table
= bgp_node_get_bgp_table_info(rn
);
4274 if (table
!= NULL
) {
4275 bgp_cleanup_table(bgp
, table
, safi
);
4276 bgp_table_finish(&table
);
4277 bgp_node_set_bgp_table_info(rn
, NULL
);
4278 bgp_unlock_node(rn
);
4283 for (rn
= bgp_table_top(bgp
->rib
[AFI_L2VPN
][SAFI_EVPN
]); rn
;
4284 rn
= bgp_route_next(rn
)) {
4285 table
= bgp_node_get_bgp_table_info(rn
);
4286 if (table
!= NULL
) {
4287 bgp_cleanup_table(bgp
, table
, SAFI_EVPN
);
4288 bgp_table_finish(&table
);
4289 bgp_node_set_bgp_table_info(rn
, NULL
);
4290 bgp_unlock_node(rn
);
4295 void bgp_reset(void)
4298 bgp_zclient_reset();
4299 access_list_reset();
4300 prefix_list_reset();
4303 static int bgp_addpath_encode_rx(struct peer
*peer
, afi_t afi
, safi_t safi
)
4305 return (CHECK_FLAG(peer
->af_cap
[afi
][safi
], PEER_CAP_ADDPATH_AF_RX_ADV
)
4306 && CHECK_FLAG(peer
->af_cap
[afi
][safi
],
4307 PEER_CAP_ADDPATH_AF_TX_RCV
));
4310 /* Parse NLRI stream. Withdraw NLRI is recognized by NULL attr
4312 int bgp_nlri_parse_ip(struct peer
*peer
, struct attr
*attr
,
4313 struct bgp_nlri
*packet
)
4322 int addpath_encoded
;
4323 uint32_t addpath_id
;
4326 lim
= pnt
+ packet
->length
;
4328 safi
= packet
->safi
;
4330 addpath_encoded
= bgp_addpath_encode_rx(peer
, afi
, safi
);
4332 /* RFC4771 6.3 The NLRI field in the UPDATE message is checked for
4333 syntactic validity. If the field is syntactically incorrect,
4334 then the Error Subcode is set to Invalid Network Field. */
4335 for (; pnt
< lim
; pnt
+= psize
) {
4336 /* Clear prefix structure. */
4337 memset(&p
, 0, sizeof(struct prefix
));
4339 if (addpath_encoded
) {
4341 /* When packet overflow occurs return immediately. */
4342 if (pnt
+ BGP_ADDPATH_ID_LEN
> lim
)
4343 return BGP_NLRI_PARSE_ERROR_PACKET_OVERFLOW
;
4345 addpath_id
= ntohl(*((uint32_t *)pnt
));
4346 pnt
+= BGP_ADDPATH_ID_LEN
;
4349 /* Fetch prefix length. */
4350 p
.prefixlen
= *pnt
++;
4351 /* afi/safi validity already verified by caller,
4352 * bgp_update_receive */
4353 p
.family
= afi2family(afi
);
4355 /* Prefix length check. */
4356 if (p
.prefixlen
> prefix_blen(&p
) * 8) {
4359 "%s [Error] Update packet error (wrong prefix length %d for afi %u)",
4360 peer
->host
, p
.prefixlen
, packet
->afi
);
4361 return BGP_NLRI_PARSE_ERROR_PREFIX_LENGTH
;
4364 /* Packet size overflow check. */
4365 psize
= PSIZE(p
.prefixlen
);
4367 /* When packet overflow occur return immediately. */
4368 if (pnt
+ psize
> lim
) {
4371 "%s [Error] Update packet error (prefix length %d overflows packet)",
4372 peer
->host
, p
.prefixlen
);
4373 return BGP_NLRI_PARSE_ERROR_PACKET_OVERFLOW
;
4376 /* Defensive coding, double-check the psize fits in a struct
4378 if (psize
> (ssize_t
)sizeof(p
.u
)) {
4381 "%s [Error] Update packet error (prefix length %d too large for prefix storage %zu)",
4382 peer
->host
, p
.prefixlen
, sizeof(p
.u
));
4383 return BGP_NLRI_PARSE_ERROR_PACKET_LENGTH
;
4386 /* Fetch prefix from NLRI packet. */
4387 memcpy(p
.u
.val
, pnt
, psize
);
4389 /* Check address. */
4390 if (afi
== AFI_IP
&& safi
== SAFI_UNICAST
) {
4391 if (IN_CLASSD(ntohl(p
.u
.prefix4
.s_addr
))) {
4392 /* From RFC4271 Section 6.3:
4394 * If a prefix in the NLRI field is semantically
4396 * (e.g., an unexpected multicast IP address),
4398 * be logged locally, and the prefix SHOULD be
4403 "%s: IPv4 unicast NLRI is multicast address %s, ignoring",
4404 peer
->host
, inet_ntoa(p
.u
.prefix4
));
4409 /* Check address. */
4410 if (afi
== AFI_IP6
&& safi
== SAFI_UNICAST
) {
4411 if (IN6_IS_ADDR_LINKLOCAL(&p
.u
.prefix6
)) {
4416 "%s: IPv6 unicast NLRI is link-local address %s, ignoring",
4418 inet_ntop(AF_INET6
, &p
.u
.prefix6
, buf
,
4423 if (IN6_IS_ADDR_MULTICAST(&p
.u
.prefix6
)) {
4428 "%s: IPv6 unicast NLRI is multicast address %s, ignoring",
4430 inet_ntop(AF_INET6
, &p
.u
.prefix6
, buf
,
4437 /* Normal process. */
4439 ret
= bgp_update(peer
, &p
, addpath_id
, attr
, afi
, safi
,
4440 ZEBRA_ROUTE_BGP
, BGP_ROUTE_NORMAL
,
4441 NULL
, NULL
, 0, 0, NULL
);
4443 ret
= bgp_withdraw(peer
, &p
, addpath_id
, attr
, afi
,
4444 safi
, ZEBRA_ROUTE_BGP
,
4445 BGP_ROUTE_NORMAL
, NULL
, NULL
, 0,
4448 /* Do not send BGP notification twice when maximum-prefix count
4450 if (CHECK_FLAG(peer
->sflags
, PEER_STATUS_PREFIX_OVERFLOW
))
4451 return BGP_NLRI_PARSE_ERROR_PREFIX_OVERFLOW
;
4453 /* Address family configuration mismatch. */
4455 return BGP_NLRI_PARSE_ERROR_ADDRESS_FAMILY
;
4458 /* Packet length consistency check. */
4462 "%s [Error] Update packet error (prefix length mismatch with total length)",
4464 return BGP_NLRI_PARSE_ERROR_PACKET_LENGTH
;
4467 return BGP_NLRI_PARSE_OK
;
4470 static struct bgp_static
*bgp_static_new(void)
4472 return XCALLOC(MTYPE_BGP_STATIC
, sizeof(struct bgp_static
));
4475 static void bgp_static_free(struct bgp_static
*bgp_static
)
4477 XFREE(MTYPE_ROUTE_MAP_NAME
, bgp_static
->rmap
.name
);
4478 route_map_counter_decrement(bgp_static
->rmap
.map
);
4480 XFREE(MTYPE_ATTR
, bgp_static
->eth_s_id
);
4481 XFREE(MTYPE_BGP_STATIC
, bgp_static
);
4484 void bgp_static_update(struct bgp
*bgp
, struct prefix
*p
,
4485 struct bgp_static
*bgp_static
, afi_t afi
, safi_t safi
)
4487 struct bgp_node
*rn
;
4488 struct bgp_path_info
*pi
;
4489 struct bgp_path_info
*new;
4490 struct bgp_path_info rmap_path
;
4492 struct attr
*attr_new
;
4495 int vnc_implicit_withdraw
= 0;
4502 rn
= bgp_afi_node_get(bgp
->rib
[afi
][safi
], afi
, safi
, p
, NULL
);
4504 bgp_attr_default_set(&attr
, BGP_ORIGIN_IGP
);
4506 attr
.nexthop
= bgp_static
->igpnexthop
;
4507 attr
.med
= bgp_static
->igpmetric
;
4508 attr
.flag
|= ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
);
4510 if (bgp_static
->atomic
)
4511 attr
.flag
|= ATTR_FLAG_BIT(BGP_ATTR_ATOMIC_AGGREGATE
);
4513 /* Store label index, if required. */
4514 if (bgp_static
->label_index
!= BGP_INVALID_LABEL_INDEX
) {
4515 attr
.label_index
= bgp_static
->label_index
;
4516 attr
.flag
|= ATTR_FLAG_BIT(BGP_ATTR_PREFIX_SID
);
4519 /* Apply route-map. */
4520 if (bgp_static
->rmap
.name
) {
4521 struct attr attr_tmp
= attr
;
4523 memset(&rmap_path
, 0, sizeof(struct bgp_path_info
));
4524 rmap_path
.peer
= bgp
->peer_self
;
4525 rmap_path
.attr
= &attr_tmp
;
4527 SET_FLAG(bgp
->peer_self
->rmap_type
, PEER_RMAP_TYPE_NETWORK
);
4529 ret
= route_map_apply(bgp_static
->rmap
.map
, p
, RMAP_BGP
,
4532 bgp
->peer_self
->rmap_type
= 0;
4534 if (ret
== RMAP_DENYMATCH
) {
4535 /* Free uninterned attribute. */
4536 bgp_attr_flush(&attr_tmp
);
4538 /* Unintern original. */
4539 aspath_unintern(&attr
.aspath
);
4540 bgp_static_withdraw(bgp
, p
, afi
, safi
);
4544 if (bgp_flag_check(bgp
, BGP_FLAG_GRACEFUL_SHUTDOWN
))
4545 bgp_attr_add_gshut_community(&attr_tmp
);
4547 attr_new
= bgp_attr_intern(&attr_tmp
);
4550 if (bgp_flag_check(bgp
, BGP_FLAG_GRACEFUL_SHUTDOWN
))
4551 bgp_attr_add_gshut_community(&attr
);
4553 attr_new
= bgp_attr_intern(&attr
);
4556 for (pi
= bgp_node_get_bgp_path_info(rn
); pi
; pi
= pi
->next
)
4557 if (pi
->peer
== bgp
->peer_self
&& pi
->type
== ZEBRA_ROUTE_BGP
4558 && pi
->sub_type
== BGP_ROUTE_STATIC
)
4562 if (attrhash_cmp(pi
->attr
, attr_new
)
4563 && !CHECK_FLAG(pi
->flags
, BGP_PATH_REMOVED
)
4564 && !bgp_flag_check(bgp
, BGP_FLAG_FORCE_STATIC_PROCESS
)) {
4565 bgp_unlock_node(rn
);
4566 bgp_attr_unintern(&attr_new
);
4567 aspath_unintern(&attr
.aspath
);
4570 /* The attribute is changed. */
4571 bgp_path_info_set_flag(rn
, pi
, BGP_PATH_ATTR_CHANGED
);
4573 /* Rewrite BGP route information. */
4574 if (CHECK_FLAG(pi
->flags
, BGP_PATH_REMOVED
))
4575 bgp_path_info_restore(rn
, pi
);
4577 bgp_aggregate_decrement(bgp
, p
, pi
, afi
, safi
);
4579 if ((afi
== AFI_IP
|| afi
== AFI_IP6
)
4580 && (safi
== SAFI_UNICAST
)) {
4581 if (CHECK_FLAG(pi
->flags
, BGP_PATH_SELECTED
)) {
4583 * Implicit withdraw case.
4584 * We have to do this before pi is
4587 ++vnc_implicit_withdraw
;
4588 vnc_import_bgp_del_route(bgp
, p
, pi
);
4589 vnc_import_bgp_exterior_del_route(
4594 bgp_attr_unintern(&pi
->attr
);
4595 pi
->attr
= attr_new
;
4596 pi
->uptime
= bgp_clock();
4598 if ((afi
== AFI_IP
|| afi
== AFI_IP6
)
4599 && (safi
== SAFI_UNICAST
)) {
4600 if (vnc_implicit_withdraw
) {
4601 vnc_import_bgp_add_route(bgp
, p
, pi
);
4602 vnc_import_bgp_exterior_add_route(
4608 /* Nexthop reachability check. */
4609 if (bgp_flag_check(bgp
, BGP_FLAG_IMPORT_CHECK
)
4610 && (safi
== SAFI_UNICAST
4611 || safi
== SAFI_LABELED_UNICAST
)) {
4613 struct bgp
*bgp_nexthop
= bgp
;
4615 if (pi
->extra
&& pi
->extra
->bgp_orig
)
4616 bgp_nexthop
= pi
->extra
->bgp_orig
;
4618 if (bgp_find_or_add_nexthop(bgp
, bgp_nexthop
,
4620 bgp_path_info_set_flag(rn
, pi
,
4623 if (BGP_DEBUG(nht
, NHT
)) {
4624 char buf1
[INET6_ADDRSTRLEN
];
4625 inet_ntop(p
->family
,
4629 "%s(%s): Route not in table, not advertising",
4630 __FUNCTION__
, buf1
);
4632 bgp_path_info_unset_flag(
4633 rn
, pi
, BGP_PATH_VALID
);
4636 /* Delete the NHT structure if any, if we're
4638 * enabling/disabling import check. We
4639 * deregister the route
4640 * from NHT to avoid overloading NHT and the
4641 * process interaction
4643 bgp_unlink_nexthop(pi
);
4644 bgp_path_info_set_flag(rn
, pi
, BGP_PATH_VALID
);
4646 /* Process change. */
4647 bgp_aggregate_increment(bgp
, p
, pi
, afi
, safi
);
4648 bgp_process(bgp
, rn
, afi
, safi
);
4650 if (SAFI_UNICAST
== safi
4651 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
4653 == BGP_INSTANCE_TYPE_DEFAULT
)) {
4654 vpn_leak_from_vrf_update(bgp_get_default(), bgp
,
4658 bgp_unlock_node(rn
);
4659 aspath_unintern(&attr
.aspath
);
4664 /* Make new BGP info. */
4665 new = info_make(ZEBRA_ROUTE_BGP
, BGP_ROUTE_STATIC
, 0, bgp
->peer_self
,
4667 /* Nexthop reachability check. */
4668 if (bgp_flag_check(bgp
, BGP_FLAG_IMPORT_CHECK
)
4669 && (safi
== SAFI_UNICAST
|| safi
== SAFI_LABELED_UNICAST
)) {
4670 if (bgp_find_or_add_nexthop(bgp
, bgp
, afi
, new, NULL
, 0))
4671 bgp_path_info_set_flag(rn
, new, BGP_PATH_VALID
);
4673 if (BGP_DEBUG(nht
, NHT
)) {
4674 char buf1
[INET6_ADDRSTRLEN
];
4675 inet_ntop(p
->family
, &p
->u
.prefix
, buf1
,
4678 "%s(%s): Route not in table, not advertising",
4679 __FUNCTION__
, buf1
);
4681 bgp_path_info_unset_flag(rn
, new, BGP_PATH_VALID
);
4684 /* Delete the NHT structure if any, if we're toggling between
4685 * enabling/disabling import check. We deregister the route
4686 * from NHT to avoid overloading NHT and the process interaction
4688 bgp_unlink_nexthop(new);
4690 bgp_path_info_set_flag(rn
, new, BGP_PATH_VALID
);
4693 /* Aggregate address increment. */
4694 bgp_aggregate_increment(bgp
, p
, new, afi
, safi
);
4696 /* Register new BGP information. */
4697 bgp_path_info_add(rn
, new);
4699 /* route_node_get lock */
4700 bgp_unlock_node(rn
);
4702 /* Process change. */
4703 bgp_process(bgp
, rn
, afi
, safi
);
4705 if (SAFI_UNICAST
== safi
4706 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
4707 || bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
4708 vpn_leak_from_vrf_update(bgp_get_default(), bgp
, new);
4711 /* Unintern original. */
4712 aspath_unintern(&attr
.aspath
);
4715 void bgp_static_withdraw(struct bgp
*bgp
, struct prefix
*p
, afi_t afi
,
4718 struct bgp_node
*rn
;
4719 struct bgp_path_info
*pi
;
4721 rn
= bgp_afi_node_get(bgp
->rib
[afi
][safi
], afi
, safi
, p
, NULL
);
4723 /* Check selected route and self inserted route. */
4724 for (pi
= bgp_node_get_bgp_path_info(rn
); pi
; pi
= pi
->next
)
4725 if (pi
->peer
== bgp
->peer_self
&& pi
->type
== ZEBRA_ROUTE_BGP
4726 && pi
->sub_type
== BGP_ROUTE_STATIC
)
4729 /* Withdraw static BGP route from routing table. */
4731 if (SAFI_UNICAST
== safi
4732 && (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
4733 || bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
4734 vpn_leak_from_vrf_withdraw(bgp_get_default(), bgp
, pi
);
4736 bgp_aggregate_decrement(bgp
, p
, pi
, afi
, safi
);
4737 bgp_unlink_nexthop(pi
);
4738 bgp_path_info_delete(rn
, pi
);
4739 bgp_process(bgp
, rn
, afi
, safi
);
4742 /* Unlock bgp_node_lookup. */
4743 bgp_unlock_node(rn
);
4747 * Used for SAFI_MPLS_VPN and SAFI_ENCAP
4749 static void bgp_static_withdraw_safi(struct bgp
*bgp
, struct prefix
*p
,
4750 afi_t afi
, safi_t safi
,
4751 struct prefix_rd
*prd
)
4753 struct bgp_node
*rn
;
4754 struct bgp_path_info
*pi
;
4756 rn
= bgp_afi_node_get(bgp
->rib
[afi
][safi
], afi
, safi
, p
, prd
);
4758 /* Check selected route and self inserted route. */
4759 for (pi
= bgp_node_get_bgp_path_info(rn
); pi
; pi
= pi
->next
)
4760 if (pi
->peer
== bgp
->peer_self
&& pi
->type
== ZEBRA_ROUTE_BGP
4761 && pi
->sub_type
== BGP_ROUTE_STATIC
)
4764 /* Withdraw static BGP route from routing table. */
4767 rfapiProcessWithdraw(
4768 pi
->peer
, NULL
, p
, prd
, pi
->attr
, afi
, safi
, pi
->type
,
4769 1); /* Kill, since it is an administrative change */
4771 if (SAFI_MPLS_VPN
== safi
4772 && bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
) {
4773 vpn_leak_to_vrf_withdraw(bgp
, pi
);
4775 bgp_aggregate_decrement(bgp
, p
, pi
, afi
, safi
);
4776 bgp_path_info_delete(rn
, pi
);
4777 bgp_process(bgp
, rn
, afi
, safi
);
4780 /* Unlock bgp_node_lookup. */
4781 bgp_unlock_node(rn
);
4784 static void bgp_static_update_safi(struct bgp
*bgp
, struct prefix
*p
,
4785 struct bgp_static
*bgp_static
, afi_t afi
,
4788 struct bgp_node
*rn
;
4789 struct bgp_path_info
*new;
4790 struct attr
*attr_new
;
4791 struct attr attr
= {0};
4792 struct bgp_path_info
*pi
;
4794 mpls_label_t label
= 0;
4796 uint32_t num_labels
= 0;
4801 if (bgp_static
->label
!= MPLS_INVALID_LABEL
)
4803 rn
= bgp_afi_node_get(bgp
->rib
[afi
][safi
], afi
, safi
, p
,
4806 bgp_attr_default_set(&attr
, BGP_ORIGIN_IGP
);
4808 attr
.nexthop
= bgp_static
->igpnexthop
;
4809 attr
.med
= bgp_static
->igpmetric
;
4810 attr
.flag
|= ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
);
4812 if ((safi
== SAFI_EVPN
) || (safi
== SAFI_MPLS_VPN
)
4813 || (safi
== SAFI_ENCAP
)) {
4814 if (afi
== AFI_IP
) {
4815 attr
.mp_nexthop_global_in
= bgp_static
->igpnexthop
;
4816 attr
.mp_nexthop_len
= IPV4_MAX_BYTELEN
;
4819 if (afi
== AFI_L2VPN
) {
4820 if (bgp_static
->gatewayIp
.family
== AF_INET
)
4822 bgp_static
->gatewayIp
.u
.prefix4
.s_addr
;
4823 else if (bgp_static
->gatewayIp
.family
== AF_INET6
)
4824 memcpy(&(add
.ipv6
), &(bgp_static
->gatewayIp
.u
.prefix6
),
4825 sizeof(struct in6_addr
));
4826 overlay_index_update(&attr
, bgp_static
->eth_s_id
, &add
);
4827 if (bgp_static
->encap_tunneltype
== BGP_ENCAP_TYPE_VXLAN
) {
4828 struct bgp_encap_type_vxlan bet
;
4829 memset(&bet
, 0, sizeof(struct bgp_encap_type_vxlan
));
4830 bet
.vnid
= p
->u
.prefix_evpn
.prefix_addr
.eth_tag
;
4831 bgp_encap_type_vxlan_to_tlv(&bet
, &attr
);
4833 if (bgp_static
->router_mac
) {
4834 bgp_add_routermac_ecom(&attr
, bgp_static
->router_mac
);
4837 /* Apply route-map. */
4838 if (bgp_static
->rmap
.name
) {
4839 struct attr attr_tmp
= attr
;
4840 struct bgp_path_info rmap_path
;
4843 rmap_path
.peer
= bgp
->peer_self
;
4844 rmap_path
.attr
= &attr_tmp
;
4846 SET_FLAG(bgp
->peer_self
->rmap_type
, PEER_RMAP_TYPE_NETWORK
);
4848 ret
= route_map_apply(bgp_static
->rmap
.map
, p
, RMAP_BGP
,
4851 bgp
->peer_self
->rmap_type
= 0;
4853 if (ret
== RMAP_DENYMATCH
) {
4854 /* Free uninterned attribute. */
4855 bgp_attr_flush(&attr_tmp
);
4857 /* Unintern original. */
4858 aspath_unintern(&attr
.aspath
);
4859 bgp_static_withdraw_safi(bgp
, p
, afi
, safi
,
4864 attr_new
= bgp_attr_intern(&attr_tmp
);
4866 attr_new
= bgp_attr_intern(&attr
);
4869 for (pi
= bgp_node_get_bgp_path_info(rn
); pi
; pi
= pi
->next
)
4870 if (pi
->peer
== bgp
->peer_self
&& pi
->type
== ZEBRA_ROUTE_BGP
4871 && pi
->sub_type
== BGP_ROUTE_STATIC
)
4875 memset(&add
, 0, sizeof(union gw_addr
));
4876 if (attrhash_cmp(pi
->attr
, attr_new
)
4877 && overlay_index_equal(afi
, pi
, bgp_static
->eth_s_id
, &add
)
4878 && !CHECK_FLAG(pi
->flags
, BGP_PATH_REMOVED
)) {
4879 bgp_unlock_node(rn
);
4880 bgp_attr_unintern(&attr_new
);
4881 aspath_unintern(&attr
.aspath
);
4884 /* The attribute is changed. */
4885 bgp_path_info_set_flag(rn
, pi
, BGP_PATH_ATTR_CHANGED
);
4887 /* Rewrite BGP route information. */
4888 if (CHECK_FLAG(pi
->flags
, BGP_PATH_REMOVED
))
4889 bgp_path_info_restore(rn
, pi
);
4891 bgp_aggregate_decrement(bgp
, p
, pi
, afi
, safi
);
4892 bgp_attr_unintern(&pi
->attr
);
4893 pi
->attr
= attr_new
;
4894 pi
->uptime
= bgp_clock();
4897 label
= decode_label(&pi
->extra
->label
[0]);
4900 /* Process change. */
4901 bgp_aggregate_increment(bgp
, p
, pi
, afi
, safi
);
4902 bgp_process(bgp
, rn
, afi
, safi
);
4904 if (SAFI_MPLS_VPN
== safi
4905 && bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
) {
4906 vpn_leak_to_vrf_update(bgp
, pi
);
4909 rfapiProcessUpdate(pi
->peer
, NULL
, p
, &bgp_static
->prd
,
4910 pi
->attr
, afi
, safi
, pi
->type
,
4911 pi
->sub_type
, &label
);
4913 bgp_unlock_node(rn
);
4914 aspath_unintern(&attr
.aspath
);
4920 /* Make new BGP info. */
4921 new = info_make(ZEBRA_ROUTE_BGP
, BGP_ROUTE_STATIC
, 0, bgp
->peer_self
,
4923 SET_FLAG(new->flags
, BGP_PATH_VALID
);
4924 new->extra
= bgp_path_info_extra_new();
4926 new->extra
->label
[0] = bgp_static
->label
;
4927 new->extra
->num_labels
= num_labels
;
4930 label
= decode_label(&bgp_static
->label
);
4933 /* Aggregate address increment. */
4934 bgp_aggregate_increment(bgp
, p
, new, afi
, safi
);
4936 /* Register new BGP information. */
4937 bgp_path_info_add(rn
, new);
4938 /* route_node_get lock */
4939 bgp_unlock_node(rn
);
4941 /* Process change. */
4942 bgp_process(bgp
, rn
, afi
, safi
);
4944 if (SAFI_MPLS_VPN
== safi
4945 && bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
) {
4946 vpn_leak_to_vrf_update(bgp
, new);
4949 rfapiProcessUpdate(new->peer
, NULL
, p
, &bgp_static
->prd
, new->attr
, afi
,
4950 safi
, new->type
, new->sub_type
, &label
);
4953 /* Unintern original. */
4954 aspath_unintern(&attr
.aspath
);
4957 /* Configure static BGP network. When user don't run zebra, static
4958 route should be installed as valid. */
4959 static int bgp_static_set(struct vty
*vty
, const char *negate
,
4960 const char *ip_str
, afi_t afi
, safi_t safi
,
4961 const char *rmap
, int backdoor
, uint32_t label_index
)
4963 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
4966 struct bgp_static
*bgp_static
;
4967 struct bgp_node
*rn
;
4968 uint8_t need_update
= 0;
4970 /* Convert IP prefix string to struct prefix. */
4971 ret
= str2prefix(ip_str
, &p
);
4973 vty_out(vty
, "%% Malformed prefix\n");
4974 return CMD_WARNING_CONFIG_FAILED
;
4976 if (afi
== AFI_IP6
&& IN6_IS_ADDR_LINKLOCAL(&p
.u
.prefix6
)) {
4977 vty_out(vty
, "%% Malformed prefix (link-local address)\n");
4978 return CMD_WARNING_CONFIG_FAILED
;
4985 /* Set BGP static route configuration. */
4986 rn
= bgp_node_lookup(bgp
->route
[afi
][safi
], &p
);
4989 vty_out(vty
, "%% Can't find static route specified\n");
4990 return CMD_WARNING_CONFIG_FAILED
;
4993 bgp_static
= bgp_node_get_bgp_static_info(rn
);
4995 if ((label_index
!= BGP_INVALID_LABEL_INDEX
)
4996 && (label_index
!= bgp_static
->label_index
)) {
4998 "%% label-index doesn't match static route\n");
4999 return CMD_WARNING_CONFIG_FAILED
;
5002 if ((rmap
&& bgp_static
->rmap
.name
)
5003 && strcmp(rmap
, bgp_static
->rmap
.name
)) {
5005 "%% route-map name doesn't match static route\n");
5006 return CMD_WARNING_CONFIG_FAILED
;
5009 /* Update BGP RIB. */
5010 if (!bgp_static
->backdoor
)
5011 bgp_static_withdraw(bgp
, &p
, afi
, safi
);
5013 /* Clear configuration. */
5014 bgp_static_free(bgp_static
);
5015 bgp_node_set_bgp_static_info(rn
, NULL
);
5016 bgp_unlock_node(rn
);
5017 bgp_unlock_node(rn
);
5020 /* Set BGP static route configuration. */
5021 rn
= bgp_node_get(bgp
->route
[afi
][safi
], &p
);
5023 bgp_static
= bgp_node_get_bgp_static_info(rn
);
5025 /* Configuration change. */
5026 /* Label index cannot be changed. */
5027 if (bgp_static
->label_index
!= label_index
) {
5028 vty_out(vty
, "%% cannot change label-index\n");
5029 return CMD_WARNING_CONFIG_FAILED
;
5032 /* Check previous routes are installed into BGP. */
5033 if (bgp_static
->valid
5034 && bgp_static
->backdoor
!= backdoor
)
5037 bgp_static
->backdoor
= backdoor
;
5040 XFREE(MTYPE_ROUTE_MAP_NAME
,
5041 bgp_static
->rmap
.name
);
5042 route_map_counter_decrement(
5043 bgp_static
->rmap
.map
);
5044 bgp_static
->rmap
.name
=
5045 XSTRDUP(MTYPE_ROUTE_MAP_NAME
, rmap
);
5046 bgp_static
->rmap
.map
=
5047 route_map_lookup_by_name(rmap
);
5048 route_map_counter_increment(
5049 bgp_static
->rmap
.map
);
5051 XFREE(MTYPE_ROUTE_MAP_NAME
,
5052 bgp_static
->rmap
.name
);
5053 route_map_counter_decrement(
5054 bgp_static
->rmap
.map
);
5055 bgp_static
->rmap
.name
= NULL
;
5056 bgp_static
->rmap
.map
= NULL
;
5057 bgp_static
->valid
= 0;
5059 bgp_unlock_node(rn
);
5061 /* New configuration. */
5062 bgp_static
= bgp_static_new();
5063 bgp_static
->backdoor
= backdoor
;
5064 bgp_static
->valid
= 0;
5065 bgp_static
->igpmetric
= 0;
5066 bgp_static
->igpnexthop
.s_addr
= 0;
5067 bgp_static
->label_index
= label_index
;
5070 XFREE(MTYPE_ROUTE_MAP_NAME
,
5071 bgp_static
->rmap
.name
);
5072 route_map_counter_decrement(
5073 bgp_static
->rmap
.map
);
5074 bgp_static
->rmap
.name
=
5075 XSTRDUP(MTYPE_ROUTE_MAP_NAME
, rmap
);
5076 bgp_static
->rmap
.map
=
5077 route_map_lookup_by_name(rmap
);
5078 route_map_counter_increment(
5079 bgp_static
->rmap
.map
);
5081 bgp_node_set_bgp_static_info(rn
, bgp_static
);
5084 bgp_static
->valid
= 1;
5086 bgp_static_withdraw(bgp
, &p
, afi
, safi
);
5088 if (!bgp_static
->backdoor
)
5089 bgp_static_update(bgp
, &p
, bgp_static
, afi
, safi
);
5095 void bgp_static_add(struct bgp
*bgp
)
5099 struct bgp_node
*rn
;
5100 struct bgp_node
*rm
;
5101 struct bgp_table
*table
;
5102 struct bgp_static
*bgp_static
;
5104 FOREACH_AFI_SAFI (afi
, safi
)
5105 for (rn
= bgp_table_top(bgp
->route
[afi
][safi
]); rn
;
5106 rn
= bgp_route_next(rn
)) {
5107 if (!bgp_node_has_bgp_path_info_data(rn
))
5110 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_ENCAP
)
5111 || (safi
== SAFI_EVPN
)) {
5112 table
= bgp_node_get_bgp_table_info(rn
);
5114 for (rm
= bgp_table_top(table
); rm
;
5115 rm
= bgp_route_next(rm
)) {
5117 bgp_node_get_bgp_static_info(
5119 bgp_static_update_safi(bgp
, &rm
->p
,
5126 bgp_node_get_bgp_static_info(rn
), afi
,
5132 /* Called from bgp_delete(). Delete all static routes from the BGP
5134 void bgp_static_delete(struct bgp
*bgp
)
5138 struct bgp_node
*rn
;
5139 struct bgp_node
*rm
;
5140 struct bgp_table
*table
;
5141 struct bgp_static
*bgp_static
;
5143 FOREACH_AFI_SAFI (afi
, safi
)
5144 for (rn
= bgp_table_top(bgp
->route
[afi
][safi
]); rn
;
5145 rn
= bgp_route_next(rn
)) {
5146 if (!bgp_node_has_bgp_path_info_data(rn
))
5149 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_ENCAP
)
5150 || (safi
== SAFI_EVPN
)) {
5151 table
= bgp_node_get_bgp_table_info(rn
);
5153 for (rm
= bgp_table_top(table
); rm
;
5154 rm
= bgp_route_next(rm
)) {
5156 bgp_node_get_bgp_static_info(
5161 bgp_static_withdraw_safi(
5162 bgp
, &rm
->p
, AFI_IP
, safi
,
5163 (struct prefix_rd
*)&rn
->p
);
5164 bgp_static_free(bgp_static
);
5165 bgp_node_set_bgp_static_info(rn
, NULL
);
5166 bgp_unlock_node(rn
);
5169 bgp_static
= bgp_node_get_bgp_static_info(rn
);
5170 bgp_static_withdraw(bgp
, &rn
->p
, afi
, safi
);
5171 bgp_static_free(bgp_static
);
5172 bgp_node_set_bgp_static_info(rn
, NULL
);
5173 bgp_unlock_node(rn
);
5178 void bgp_static_redo_import_check(struct bgp
*bgp
)
5182 struct bgp_node
*rn
;
5183 struct bgp_node
*rm
;
5184 struct bgp_table
*table
;
5185 struct bgp_static
*bgp_static
;
5187 /* Use this flag to force reprocessing of the route */
5188 bgp_flag_set(bgp
, BGP_FLAG_FORCE_STATIC_PROCESS
);
5189 FOREACH_AFI_SAFI (afi
, safi
) {
5190 for (rn
= bgp_table_top(bgp
->route
[afi
][safi
]); rn
;
5191 rn
= bgp_route_next(rn
)) {
5192 if (!bgp_node_has_bgp_path_info_data(rn
))
5195 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_ENCAP
)
5196 || (safi
== SAFI_EVPN
)) {
5197 table
= bgp_node_get_bgp_table_info(rn
);
5199 for (rm
= bgp_table_top(table
); rm
;
5200 rm
= bgp_route_next(rm
)) {
5202 bgp_node_get_bgp_static_info(
5204 bgp_static_update_safi(bgp
, &rm
->p
,
5209 bgp_static
= bgp_node_get_bgp_static_info(rn
);
5210 bgp_static_update(bgp
, &rn
->p
, bgp_static
, afi
,
5215 bgp_flag_unset(bgp
, BGP_FLAG_FORCE_STATIC_PROCESS
);
5218 static void bgp_purge_af_static_redist_routes(struct bgp
*bgp
, afi_t afi
,
5221 struct bgp_table
*table
;
5222 struct bgp_node
*rn
;
5223 struct bgp_path_info
*pi
;
5225 table
= bgp
->rib
[afi
][safi
];
5226 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
)) {
5227 for (pi
= bgp_node_get_bgp_path_info(rn
); pi
; pi
= pi
->next
) {
5228 if (pi
->peer
== bgp
->peer_self
5229 && ((pi
->type
== ZEBRA_ROUTE_BGP
5230 && pi
->sub_type
== BGP_ROUTE_STATIC
)
5231 || (pi
->type
!= ZEBRA_ROUTE_BGP
5233 == BGP_ROUTE_REDISTRIBUTE
))) {
5234 bgp_aggregate_decrement(bgp
, &rn
->p
, pi
, afi
,
5236 bgp_unlink_nexthop(pi
);
5237 bgp_path_info_delete(rn
, pi
);
5238 bgp_process(bgp
, rn
, afi
, safi
);
5245 * Purge all networks and redistributed routes from routing table.
5246 * Invoked upon the instance going down.
5248 void bgp_purge_static_redist_routes(struct bgp
*bgp
)
5253 FOREACH_AFI_SAFI (afi
, safi
)
5254 bgp_purge_af_static_redist_routes(bgp
, afi
, safi
);
5259 * Currently this is used to set static routes for VPN and ENCAP.
5260 * I think it can probably be factored with bgp_static_set.
5262 int bgp_static_set_safi(afi_t afi
, safi_t safi
, struct vty
*vty
,
5263 const char *ip_str
, const char *rd_str
,
5264 const char *label_str
, const char *rmap_str
,
5265 int evpn_type
, const char *esi
, const char *gwip
,
5266 const char *ethtag
, const char *routermac
)
5268 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
5271 struct prefix_rd prd
;
5272 struct bgp_node
*prn
;
5273 struct bgp_node
*rn
;
5274 struct bgp_table
*table
;
5275 struct bgp_static
*bgp_static
;
5276 mpls_label_t label
= MPLS_INVALID_LABEL
;
5277 struct prefix gw_ip
;
5279 /* validate ip prefix */
5280 ret
= str2prefix(ip_str
, &p
);
5282 vty_out(vty
, "%% Malformed prefix\n");
5283 return CMD_WARNING_CONFIG_FAILED
;
5286 if ((afi
== AFI_L2VPN
)
5287 && (bgp_build_evpn_prefix(evpn_type
,
5288 ethtag
!= NULL
? atol(ethtag
) : 0, &p
))) {
5289 vty_out(vty
, "%% L2VPN prefix could not be forged\n");
5290 return CMD_WARNING_CONFIG_FAILED
;
5293 ret
= str2prefix_rd(rd_str
, &prd
);
5295 vty_out(vty
, "%% Malformed rd\n");
5296 return CMD_WARNING_CONFIG_FAILED
;
5300 unsigned long label_val
;
5301 label_val
= strtoul(label_str
, NULL
, 10);
5302 encode_label(label_val
, &label
);
5305 if (safi
== SAFI_EVPN
) {
5306 if (esi
&& str2esi(esi
, NULL
) == 0) {
5307 vty_out(vty
, "%% Malformed ESI\n");
5308 return CMD_WARNING_CONFIG_FAILED
;
5310 if (routermac
&& prefix_str2mac(routermac
, NULL
) == 0) {
5311 vty_out(vty
, "%% Malformed Router MAC\n");
5312 return CMD_WARNING_CONFIG_FAILED
;
5315 memset(&gw_ip
, 0, sizeof(struct prefix
));
5316 ret
= str2prefix(gwip
, &gw_ip
);
5318 vty_out(vty
, "%% Malformed GatewayIp\n");
5319 return CMD_WARNING_CONFIG_FAILED
;
5321 if ((gw_ip
.family
== AF_INET
5322 && is_evpn_prefix_ipaddr_v6(
5323 (struct prefix_evpn
*)&p
))
5324 || (gw_ip
.family
== AF_INET6
5325 && is_evpn_prefix_ipaddr_v4(
5326 (struct prefix_evpn
*)&p
))) {
5328 "%% GatewayIp family differs with IP prefix\n");
5329 return CMD_WARNING_CONFIG_FAILED
;
5333 prn
= bgp_node_get(bgp
->route
[afi
][safi
], (struct prefix
*)&prd
);
5334 if (!bgp_node_has_bgp_path_info_data(prn
))
5335 bgp_node_set_bgp_table_info(prn
,
5336 bgp_table_init(bgp
, afi
, safi
));
5337 table
= bgp_node_get_bgp_table_info(prn
);
5339 rn
= bgp_node_get(table
, &p
);
5341 if (bgp_node_has_bgp_path_info_data(rn
)) {
5342 vty_out(vty
, "%% Same network configuration exists\n");
5343 bgp_unlock_node(rn
);
5345 /* New configuration. */
5346 bgp_static
= bgp_static_new();
5347 bgp_static
->backdoor
= 0;
5348 bgp_static
->valid
= 0;
5349 bgp_static
->igpmetric
= 0;
5350 bgp_static
->igpnexthop
.s_addr
= 0;
5351 bgp_static
->label
= label
;
5352 bgp_static
->prd
= prd
;
5355 XFREE(MTYPE_ROUTE_MAP_NAME
, bgp_static
->rmap
.name
);
5356 route_map_counter_decrement(bgp_static
->rmap
.map
);
5357 bgp_static
->rmap
.name
=
5358 XSTRDUP(MTYPE_ROUTE_MAP_NAME
, rmap_str
);
5359 bgp_static
->rmap
.map
=
5360 route_map_lookup_by_name(rmap_str
);
5361 route_map_counter_increment(bgp_static
->rmap
.map
);
5364 if (safi
== SAFI_EVPN
) {
5366 bgp_static
->eth_s_id
=
5368 sizeof(struct eth_segment_id
));
5369 str2esi(esi
, bgp_static
->eth_s_id
);
5372 bgp_static
->router_mac
=
5373 XCALLOC(MTYPE_ATTR
, ETH_ALEN
+ 1);
5374 (void)prefix_str2mac(routermac
,
5375 bgp_static
->router_mac
);
5378 prefix_copy(&bgp_static
->gatewayIp
, &gw_ip
);
5380 bgp_node_set_bgp_static_info(rn
, bgp_static
);
5382 bgp_static
->valid
= 1;
5383 bgp_static_update_safi(bgp
, &p
, bgp_static
, afi
, safi
);
5389 /* Configure static BGP network. */
5390 int bgp_static_unset_safi(afi_t afi
, safi_t safi
, struct vty
*vty
,
5391 const char *ip_str
, const char *rd_str
,
5392 const char *label_str
, int evpn_type
, const char *esi
,
5393 const char *gwip
, const char *ethtag
)
5395 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
5398 struct prefix_rd prd
;
5399 struct bgp_node
*prn
;
5400 struct bgp_node
*rn
;
5401 struct bgp_table
*table
;
5402 struct bgp_static
*bgp_static
;
5403 mpls_label_t label
= MPLS_INVALID_LABEL
;
5405 /* Convert IP prefix string to struct prefix. */
5406 ret
= str2prefix(ip_str
, &p
);
5408 vty_out(vty
, "%% Malformed prefix\n");
5409 return CMD_WARNING_CONFIG_FAILED
;
5412 if ((afi
== AFI_L2VPN
)
5413 && (bgp_build_evpn_prefix(evpn_type
,
5414 ethtag
!= NULL
? atol(ethtag
) : 0, &p
))) {
5415 vty_out(vty
, "%% L2VPN prefix could not be forged\n");
5416 return CMD_WARNING_CONFIG_FAILED
;
5418 ret
= str2prefix_rd(rd_str
, &prd
);
5420 vty_out(vty
, "%% Malformed rd\n");
5421 return CMD_WARNING_CONFIG_FAILED
;
5425 unsigned long label_val
;
5426 label_val
= strtoul(label_str
, NULL
, 10);
5427 encode_label(label_val
, &label
);
5430 prn
= bgp_node_get(bgp
->route
[afi
][safi
], (struct prefix
*)&prd
);
5431 if (!bgp_node_has_bgp_path_info_data(prn
))
5432 bgp_node_set_bgp_table_info(prn
,
5433 bgp_table_init(bgp
, afi
, safi
));
5435 bgp_unlock_node(prn
);
5436 table
= bgp_node_get_bgp_table_info(prn
);
5438 rn
= bgp_node_lookup(table
, &p
);
5441 bgp_static_withdraw_safi(bgp
, &p
, afi
, safi
, &prd
);
5443 bgp_static
= bgp_node_get_bgp_static_info(rn
);
5444 bgp_static_free(bgp_static
);
5445 bgp_node_set_bgp_static_info(rn
, NULL
);
5446 bgp_unlock_node(rn
);
5447 bgp_unlock_node(rn
);
5449 vty_out(vty
, "%% Can't find the route\n");
5454 static int bgp_table_map_set(struct vty
*vty
, afi_t afi
, safi_t safi
,
5455 const char *rmap_name
)
5457 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
5458 struct bgp_rmap
*rmap
;
5460 rmap
= &bgp
->table_map
[afi
][safi
];
5462 XFREE(MTYPE_ROUTE_MAP_NAME
, rmap
->name
);
5463 route_map_counter_decrement(rmap
->map
);
5464 rmap
->name
= XSTRDUP(MTYPE_ROUTE_MAP_NAME
, rmap_name
);
5465 rmap
->map
= route_map_lookup_by_name(rmap_name
);
5466 route_map_counter_increment(rmap
->map
);
5468 XFREE(MTYPE_ROUTE_MAP_NAME
, rmap
->name
);
5469 route_map_counter_decrement(rmap
->map
);
5474 if (bgp_fibupd_safi(safi
))
5475 bgp_zebra_announce_table(bgp
, afi
, safi
);
5480 static int bgp_table_map_unset(struct vty
*vty
, afi_t afi
, safi_t safi
,
5481 const char *rmap_name
)
5483 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
5484 struct bgp_rmap
*rmap
;
5486 rmap
= &bgp
->table_map
[afi
][safi
];
5487 XFREE(MTYPE_ROUTE_MAP_NAME
, rmap
->name
);
5488 route_map_counter_decrement(rmap
->map
);
5492 if (bgp_fibupd_safi(safi
))
5493 bgp_zebra_announce_table(bgp
, afi
, safi
);
5498 void bgp_config_write_table_map(struct vty
*vty
, struct bgp
*bgp
, afi_t afi
,
5501 if (bgp
->table_map
[afi
][safi
].name
) {
5502 vty_out(vty
, " table-map %s\n",
5503 bgp
->table_map
[afi
][safi
].name
);
5507 DEFUN (bgp_table_map
,
5510 "BGP table to RIB route download filter\n"
5511 "Name of the route map\n")
5514 return bgp_table_map_set(vty
, bgp_node_afi(vty
), bgp_node_safi(vty
),
5515 argv
[idx_word
]->arg
);
5517 DEFUN (no_bgp_table_map
,
5518 no_bgp_table_map_cmd
,
5519 "no table-map WORD",
5521 "BGP table to RIB route download filter\n"
5522 "Name of the route map\n")
5525 return bgp_table_map_unset(vty
, bgp_node_afi(vty
), bgp_node_safi(vty
),
5526 argv
[idx_word
]->arg
);
5532 <A.B.C.D/M$prefix|A.B.C.D$address [mask A.B.C.D$netmask]> \
5533 [{route-map WORD$map_name|label-index (0-1048560)$label_index| \
5534 backdoor$backdoor}]",
5536 "Specify a network to announce via BGP\n"
5541 "Route-map to modify the attributes\n"
5542 "Name of the route map\n"
5543 "Label index to associate with the prefix\n"
5544 "Label index value\n"
5545 "Specify a BGP backdoor route\n")
5547 char addr_prefix_str
[BUFSIZ
];
5552 ret
= netmask_str2prefix_str(address_str
, netmask_str
,
5555 vty_out(vty
, "%% Inconsistent address and mask\n");
5556 return CMD_WARNING_CONFIG_FAILED
;
5560 return bgp_static_set(
5561 vty
, no
, address_str
? addr_prefix_str
: prefix_str
, AFI_IP
,
5562 bgp_node_safi(vty
), map_name
, backdoor
? 1 : 0,
5563 label_index
? (uint32_t)label_index
: BGP_INVALID_LABEL_INDEX
);
5566 DEFPY(ipv6_bgp_network
,
5567 ipv6_bgp_network_cmd
,
5568 "[no] network X:X::X:X/M$prefix \
5569 [{route-map WORD$map_name|label-index (0-1048560)$label_index}]",
5571 "Specify a network to announce via BGP\n"
5573 "Route-map to modify the attributes\n"
5574 "Name of the route map\n"
5575 "Label index to associate with the prefix\n"
5576 "Label index value\n")
5578 return bgp_static_set(
5579 vty
, no
, prefix_str
, AFI_IP6
, bgp_node_safi(vty
), map_name
, 0,
5580 label_index
? (uint32_t)label_index
: BGP_INVALID_LABEL_INDEX
);
5583 static struct bgp_aggregate
*bgp_aggregate_new(void)
5585 return XCALLOC(MTYPE_BGP_AGGREGATE
, sizeof(struct bgp_aggregate
));
5588 static void bgp_aggregate_free(struct bgp_aggregate
*aggregate
)
5590 XFREE(MTYPE_BGP_AGGREGATE
, aggregate
);
5593 static int bgp_aggregate_info_same(struct bgp_path_info
*pi
, uint8_t origin
,
5594 struct aspath
*aspath
,
5595 struct community
*comm
,
5596 struct ecommunity
*ecomm
,
5597 struct lcommunity
*lcomm
)
5599 static struct aspath
*ae
= NULL
;
5602 ae
= aspath_empty();
5607 if (origin
!= pi
->attr
->origin
)
5610 if (!aspath_cmp(pi
->attr
->aspath
, (aspath
) ? aspath
: ae
))
5613 if (!community_cmp(pi
->attr
->community
, comm
))
5616 if (!ecommunity_cmp(pi
->attr
->ecommunity
, ecomm
))
5619 if (!lcommunity_cmp(pi
->attr
->lcommunity
, lcomm
))
5622 if (!CHECK_FLAG(pi
->flags
, BGP_PATH_VALID
))
5628 static void bgp_aggregate_install(struct bgp
*bgp
, afi_t afi
, safi_t safi
,
5629 struct prefix
*p
, uint8_t origin
,
5630 struct aspath
*aspath
,
5631 struct community
*community
,
5632 struct ecommunity
*ecommunity
,
5633 struct lcommunity
*lcommunity
,
5634 uint8_t atomic_aggregate
,
5635 struct bgp_aggregate
*aggregate
)
5637 struct bgp_node
*rn
;
5638 struct bgp_table
*table
;
5639 struct bgp_path_info
*pi
, *orig
, *new;
5641 table
= bgp
->rib
[afi
][safi
];
5643 rn
= bgp_node_get(table
, p
);
5645 for (orig
= pi
= bgp_node_get_bgp_path_info(rn
); pi
; pi
= pi
->next
)
5646 if (pi
->peer
== bgp
->peer_self
&& pi
->type
== ZEBRA_ROUTE_BGP
5647 && pi
->sub_type
== BGP_ROUTE_AGGREGATE
)
5650 if (aggregate
->count
> 0) {
5652 * If the aggregate information has not changed
5653 * no need to re-install it again.
5655 if (bgp_aggregate_info_same(orig
, origin
, aspath
, community
,
5656 ecommunity
, lcommunity
)) {
5657 bgp_unlock_node(rn
);
5660 aspath_free(aspath
);
5662 community_free(&community
);
5664 ecommunity_free(&ecommunity
);
5666 lcommunity_free(&lcommunity
);
5672 * Mark the old as unusable
5675 bgp_path_info_delete(rn
, pi
);
5677 new = info_make(ZEBRA_ROUTE_BGP
, BGP_ROUTE_AGGREGATE
, 0,
5679 bgp_attr_aggregate_intern(bgp
, origin
, aspath
,
5680 community
, ecommunity
,
5685 SET_FLAG(new->flags
, BGP_PATH_VALID
);
5687 bgp_path_info_add(rn
, new);
5688 bgp_process(bgp
, rn
, afi
, safi
);
5690 for (pi
= orig
; pi
; pi
= pi
->next
)
5691 if (pi
->peer
== bgp
->peer_self
5692 && pi
->type
== ZEBRA_ROUTE_BGP
5693 && pi
->sub_type
== BGP_ROUTE_AGGREGATE
)
5696 /* Withdraw static BGP route from routing table. */
5698 bgp_path_info_delete(rn
, pi
);
5699 bgp_process(bgp
, rn
, afi
, safi
);
5703 bgp_unlock_node(rn
);
5706 /* Update an aggregate as routes are added/removed from the BGP table */
5707 static void bgp_aggregate_route(struct bgp
*bgp
, struct prefix
*p
,
5708 afi_t afi
, safi_t safi
,
5709 struct bgp_aggregate
*aggregate
)
5711 struct bgp_table
*table
;
5712 struct bgp_node
*top
;
5713 struct bgp_node
*rn
;
5715 struct aspath
*aspath
= NULL
;
5716 struct community
*community
= NULL
;
5717 struct ecommunity
*ecommunity
= NULL
;
5718 struct lcommunity
*lcommunity
= NULL
;
5719 struct bgp_path_info
*pi
;
5720 unsigned long match
= 0;
5721 uint8_t atomic_aggregate
= 0;
5723 /* ORIGIN attribute: If at least one route among routes that are
5724 aggregated has ORIGIN with the value INCOMPLETE, then the
5725 aggregated route must have the ORIGIN attribute with the value
5726 INCOMPLETE. Otherwise, if at least one route among routes that
5727 are aggregated has ORIGIN with the value EGP, then the aggregated
5728 route must have the origin attribute with the value EGP. In all
5729 other case the value of the ORIGIN attribute of the aggregated
5730 route is INTERNAL. */
5731 origin
= BGP_ORIGIN_IGP
;
5733 table
= bgp
->rib
[afi
][safi
];
5735 top
= bgp_node_get(table
, p
);
5736 for (rn
= bgp_node_get(table
, p
); rn
;
5737 rn
= bgp_route_next_until(rn
, top
)) {
5738 if (rn
->p
.prefixlen
<= p
->prefixlen
)
5743 for (pi
= bgp_node_get_bgp_path_info(rn
); pi
; pi
= pi
->next
) {
5744 if (BGP_PATH_HOLDDOWN(pi
))
5748 & ATTR_FLAG_BIT(BGP_ATTR_ATOMIC_AGGREGATE
))
5749 atomic_aggregate
= 1;
5751 if (pi
->sub_type
== BGP_ROUTE_AGGREGATE
)
5755 * summary-only aggregate route suppress
5756 * aggregated route announcements.
5758 if (aggregate
->summary_only
) {
5759 (bgp_path_info_extra_get(pi
))->suppress
++;
5760 bgp_path_info_set_flag(rn
, pi
,
5761 BGP_PATH_ATTR_CHANGED
);
5768 * If at least one route among routes that are
5769 * aggregated has ORIGIN with the value INCOMPLETE,
5770 * then the aggregated route MUST have the ORIGIN
5771 * attribute with the value INCOMPLETE. Otherwise, if
5772 * at least one route among routes that are aggregated
5773 * has ORIGIN with the value EGP, then the aggregated
5774 * route MUST have the ORIGIN attribute with the value
5777 switch (pi
->attr
->origin
) {
5778 case BGP_ORIGIN_INCOMPLETE
:
5779 aggregate
->incomplete_origin_count
++;
5781 case BGP_ORIGIN_EGP
:
5782 aggregate
->egp_origin_count
++;
5790 if (!aggregate
->as_set
)
5794 * as-set aggregate route generate origin, as path,
5795 * and community aggregation.
5797 /* Compute aggregate route's as-path.
5799 bgp_compute_aggregate_aspath(aggregate
,
5802 /* Compute aggregate route's community.
5804 if (pi
->attr
->community
)
5805 bgp_compute_aggregate_community(
5807 pi
->attr
->community
);
5809 /* Compute aggregate route's extended community.
5811 if (pi
->attr
->ecommunity
)
5812 bgp_compute_aggregate_ecommunity(
5814 pi
->attr
->ecommunity
);
5816 /* Compute aggregate route's large community.
5818 if (pi
->attr
->lcommunity
)
5819 bgp_compute_aggregate_lcommunity(
5821 pi
->attr
->lcommunity
);
5824 bgp_process(bgp
, rn
, afi
, safi
);
5826 bgp_unlock_node(top
);
5829 if (aggregate
->incomplete_origin_count
> 0)
5830 origin
= BGP_ORIGIN_INCOMPLETE
;
5831 else if (aggregate
->egp_origin_count
> 0)
5832 origin
= BGP_ORIGIN_EGP
;
5834 if (aggregate
->as_set
) {
5835 if (aggregate
->aspath
)
5836 /* Retrieve aggregate route's as-path.
5838 aspath
= aspath_dup(aggregate
->aspath
);
5840 if (aggregate
->community
)
5841 /* Retrieve aggregate route's community.
5843 community
= community_dup(aggregate
->community
);
5845 if (aggregate
->ecommunity
)
5846 /* Retrieve aggregate route's ecommunity.
5848 ecommunity
= ecommunity_dup(aggregate
->ecommunity
);
5850 if (aggregate
->lcommunity
)
5851 /* Retrieve aggregate route's lcommunity.
5853 lcommunity
= lcommunity_dup(aggregate
->lcommunity
);
5856 bgp_aggregate_install(bgp
, afi
, safi
, p
, origin
, aspath
, community
,
5857 ecommunity
, lcommunity
, atomic_aggregate
,
5861 static void bgp_aggregate_delete(struct bgp
*bgp
, struct prefix
*p
, afi_t afi
,
5862 safi_t safi
, struct bgp_aggregate
*aggregate
)
5864 struct bgp_table
*table
;
5865 struct bgp_node
*top
;
5866 struct bgp_node
*rn
;
5867 struct bgp_path_info
*pi
;
5868 unsigned long match
;
5870 table
= bgp
->rib
[afi
][safi
];
5872 /* If routes exists below this node, generate aggregate routes. */
5873 top
= bgp_node_get(table
, p
);
5874 for (rn
= bgp_node_get(table
, p
); rn
;
5875 rn
= bgp_route_next_until(rn
, top
)) {
5876 if (rn
->p
.prefixlen
<= p
->prefixlen
)
5880 for (pi
= bgp_node_get_bgp_path_info(rn
); pi
; pi
= pi
->next
) {
5881 if (BGP_PATH_HOLDDOWN(pi
))
5884 if (pi
->sub_type
== BGP_ROUTE_AGGREGATE
)
5887 if (aggregate
->summary_only
&& pi
->extra
) {
5888 pi
->extra
->suppress
--;
5890 if (pi
->extra
->suppress
== 0) {
5891 bgp_path_info_set_flag(
5892 rn
, pi
, BGP_PATH_ATTR_CHANGED
);
5898 if (pi
->attr
->origin
== BGP_ORIGIN_INCOMPLETE
)
5899 aggregate
->incomplete_origin_count
--;
5900 else if (pi
->attr
->origin
== BGP_ORIGIN_EGP
)
5901 aggregate
->egp_origin_count
--;
5903 if (aggregate
->as_set
) {
5904 /* Remove as-path from aggregate.
5906 bgp_remove_aspath_from_aggregate(
5910 if (pi
->attr
->community
)
5911 /* Remove community from aggregate.
5913 bgp_remove_community_from_aggregate(
5915 pi
->attr
->community
);
5917 if (pi
->attr
->ecommunity
)
5918 /* Remove ecommunity from aggregate.
5920 bgp_remove_ecommunity_from_aggregate(
5922 pi
->attr
->ecommunity
);
5924 if (pi
->attr
->lcommunity
)
5925 /* Remove lcommunity from aggregate.
5927 bgp_remove_lcommunity_from_aggregate(
5929 pi
->attr
->lcommunity
);
5934 /* If this node was suppressed, process the change. */
5936 bgp_process(bgp
, rn
, afi
, safi
);
5938 bgp_unlock_node(top
);
5941 static void bgp_add_route_to_aggregate(struct bgp
*bgp
, struct prefix
*aggr_p
,
5942 struct bgp_path_info
*pinew
, afi_t afi
,
5944 struct bgp_aggregate
*aggregate
)
5947 struct aspath
*aspath
= NULL
;
5948 uint8_t atomic_aggregate
= 0;
5949 struct community
*community
= NULL
;
5950 struct ecommunity
*ecommunity
= NULL
;
5951 struct lcommunity
*lcommunity
= NULL
;
5953 /* ORIGIN attribute: If at least one route among routes that are
5954 * aggregated has ORIGIN with the value INCOMPLETE, then the
5955 * aggregated route must have the ORIGIN attribute with the value
5956 * INCOMPLETE. Otherwise, if at least one route among routes that
5957 * are aggregated has ORIGIN with the value EGP, then the aggregated
5958 * route must have the origin attribute with the value EGP. In all
5959 * other case the value of the ORIGIN attribute of the aggregated
5960 * route is INTERNAL.
5962 origin
= BGP_ORIGIN_IGP
;
5966 if (aggregate
->summary_only
)
5967 (bgp_path_info_extra_get(pinew
))->suppress
++;
5969 switch (pinew
->attr
->origin
) {
5970 case BGP_ORIGIN_INCOMPLETE
:
5971 aggregate
->incomplete_origin_count
++;
5973 case BGP_ORIGIN_EGP
:
5974 aggregate
->egp_origin_count
++;
5982 if (aggregate
->incomplete_origin_count
> 0)
5983 origin
= BGP_ORIGIN_INCOMPLETE
;
5984 else if (aggregate
->egp_origin_count
> 0)
5985 origin
= BGP_ORIGIN_EGP
;
5987 if (aggregate
->as_set
) {
5988 /* Compute aggregate route's as-path.
5990 bgp_compute_aggregate_aspath(aggregate
,
5991 pinew
->attr
->aspath
);
5993 /* Compute aggregate route's community.
5995 if (pinew
->attr
->community
)
5996 bgp_compute_aggregate_community(
5998 pinew
->attr
->community
);
6000 /* Compute aggregate route's extended community.
6002 if (pinew
->attr
->ecommunity
)
6003 bgp_compute_aggregate_ecommunity(
6005 pinew
->attr
->ecommunity
);
6007 /* Compute aggregate route's large community.
6009 if (pinew
->attr
->lcommunity
)
6010 bgp_compute_aggregate_lcommunity(
6012 pinew
->attr
->lcommunity
);
6014 /* Retrieve aggregate route's as-path.
6016 if (aggregate
->aspath
)
6017 aspath
= aspath_dup(aggregate
->aspath
);
6019 /* Retrieve aggregate route's community.
6021 if (aggregate
->community
)
6022 community
= community_dup(aggregate
->community
);
6024 /* Retrieve aggregate route's ecommunity.
6026 if (aggregate
->ecommunity
)
6027 ecommunity
= ecommunity_dup(aggregate
->ecommunity
);
6029 /* Retrieve aggregate route's lcommunity.
6031 if (aggregate
->lcommunity
)
6032 lcommunity
= lcommunity_dup(aggregate
->lcommunity
);
6035 bgp_aggregate_install(bgp
, afi
, safi
, aggr_p
, origin
,
6036 aspath
, community
, ecommunity
,
6037 lcommunity
, atomic_aggregate
, aggregate
);
6040 static void bgp_remove_route_from_aggregate(struct bgp
*bgp
, afi_t afi
,
6042 struct bgp_path_info
*pi
,
6043 struct bgp_aggregate
*aggregate
,
6044 struct prefix
*aggr_p
)
6047 struct aspath
*aspath
= NULL
;
6048 uint8_t atomic_aggregate
= 0;
6049 struct community
*community
= NULL
;
6050 struct ecommunity
*ecommunity
= NULL
;
6051 struct lcommunity
*lcommunity
= NULL
;
6052 unsigned long match
= 0;
6054 if (BGP_PATH_HOLDDOWN(pi
))
6057 if (pi
->sub_type
== BGP_ROUTE_AGGREGATE
)
6060 if (aggregate
->summary_only
6062 && pi
->extra
->suppress
> 0) {
6063 pi
->extra
->suppress
--;
6065 if (pi
->extra
->suppress
== 0) {
6066 bgp_path_info_set_flag(pi
->net
, pi
,
6067 BGP_PATH_ATTR_CHANGED
);
6072 if (aggregate
->count
> 0)
6075 if (pi
->attr
->origin
== BGP_ORIGIN_INCOMPLETE
)
6076 aggregate
->incomplete_origin_count
--;
6077 else if (pi
->attr
->origin
== BGP_ORIGIN_EGP
)
6078 aggregate
->egp_origin_count
--;
6080 if (aggregate
->as_set
) {
6081 /* Remove as-path from aggregate.
6083 bgp_remove_aspath_from_aggregate(aggregate
,
6086 if (pi
->attr
->community
)
6087 /* Remove community from aggregate.
6089 bgp_remove_community_from_aggregate(
6091 pi
->attr
->community
);
6093 if (pi
->attr
->ecommunity
)
6094 /* Remove ecommunity from aggregate.
6096 bgp_remove_ecommunity_from_aggregate(
6098 pi
->attr
->ecommunity
);
6100 if (pi
->attr
->lcommunity
)
6101 /* Remove lcommunity from aggregate.
6103 bgp_remove_lcommunity_from_aggregate(
6105 pi
->attr
->lcommunity
);
6108 /* If this node was suppressed, process the change. */
6110 bgp_process(bgp
, pi
->net
, afi
, safi
);
6112 origin
= BGP_ORIGIN_IGP
;
6113 if (aggregate
->incomplete_origin_count
> 0)
6114 origin
= BGP_ORIGIN_INCOMPLETE
;
6115 else if (aggregate
->egp_origin_count
> 0)
6116 origin
= BGP_ORIGIN_EGP
;
6118 if (aggregate
->as_set
) {
6119 /* Retrieve aggregate route's as-path.
6121 if (aggregate
->aspath
)
6122 aspath
= aspath_dup(aggregate
->aspath
);
6124 /* Retrieve aggregate route's community.
6126 if (aggregate
->community
)
6127 community
= community_dup(aggregate
->community
);
6129 /* Retrieve aggregate route's ecommunity.
6131 if (aggregate
->ecommunity
)
6132 ecommunity
= ecommunity_dup(aggregate
->ecommunity
);
6134 /* Retrieve aggregate route's lcommunity.
6136 if (aggregate
->lcommunity
)
6137 lcommunity
= lcommunity_dup(aggregate
->lcommunity
);
6140 bgp_aggregate_install(bgp
, afi
, safi
, aggr_p
, origin
,
6141 aspath
, community
, ecommunity
,
6142 lcommunity
, atomic_aggregate
, aggregate
);
6145 void bgp_aggregate_increment(struct bgp
*bgp
, struct prefix
*p
,
6146 struct bgp_path_info
*pi
, afi_t afi
, safi_t safi
)
6148 struct bgp_node
*child
;
6149 struct bgp_node
*rn
;
6150 struct bgp_aggregate
*aggregate
;
6151 struct bgp_table
*table
;
6153 table
= bgp
->aggregate
[afi
][safi
];
6155 /* No aggregates configured. */
6156 if (bgp_table_top_nolock(table
) == NULL
)
6159 if (p
->prefixlen
== 0)
6162 if (BGP_PATH_HOLDDOWN(pi
))
6165 child
= bgp_node_get(table
, p
);
6167 /* Aggregate address configuration check. */
6168 for (rn
= child
; rn
; rn
= bgp_node_parent_nolock(rn
)) {
6169 aggregate
= bgp_node_get_bgp_aggregate_info(rn
);
6170 if (aggregate
!= NULL
&& rn
->p
.prefixlen
< p
->prefixlen
) {
6171 bgp_add_route_to_aggregate(bgp
, &rn
->p
, pi
, afi
,
6175 bgp_unlock_node(child
);
6178 void bgp_aggregate_decrement(struct bgp
*bgp
, struct prefix
*p
,
6179 struct bgp_path_info
*del
, afi_t afi
, safi_t safi
)
6181 struct bgp_node
*child
;
6182 struct bgp_node
*rn
;
6183 struct bgp_aggregate
*aggregate
;
6184 struct bgp_table
*table
;
6186 table
= bgp
->aggregate
[afi
][safi
];
6188 /* No aggregates configured. */
6189 if (bgp_table_top_nolock(table
) == NULL
)
6192 if (p
->prefixlen
== 0)
6195 child
= bgp_node_get(table
, p
);
6197 /* Aggregate address configuration check. */
6198 for (rn
= child
; rn
; rn
= bgp_node_parent_nolock(rn
)) {
6199 aggregate
= bgp_node_get_bgp_aggregate_info(rn
);
6200 if (aggregate
!= NULL
&& rn
->p
.prefixlen
< p
->prefixlen
) {
6201 bgp_remove_route_from_aggregate(bgp
, afi
, safi
,
6202 del
, aggregate
, &rn
->p
);
6205 bgp_unlock_node(child
);
6208 /* Aggregate route attribute. */
6209 #define AGGREGATE_SUMMARY_ONLY 1
6210 #define AGGREGATE_AS_SET 1
6212 static int bgp_aggregate_unset(struct vty
*vty
, const char *prefix_str
,
6213 afi_t afi
, safi_t safi
)
6215 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
6218 struct bgp_node
*rn
;
6219 struct bgp_aggregate
*aggregate
;
6221 /* Convert string to prefix structure. */
6222 ret
= str2prefix(prefix_str
, &p
);
6224 vty_out(vty
, "Malformed prefix\n");
6225 return CMD_WARNING_CONFIG_FAILED
;
6229 /* Old configuration check. */
6230 rn
= bgp_node_lookup(bgp
->aggregate
[afi
][safi
], &p
);
6233 "%% There is no aggregate-address configuration.\n");
6234 return CMD_WARNING_CONFIG_FAILED
;
6237 aggregate
= bgp_node_get_bgp_aggregate_info(rn
);
6238 bgp_aggregate_delete(bgp
, &p
, afi
, safi
, aggregate
);
6239 bgp_aggregate_install(bgp
, afi
, safi
, &p
, 0, NULL
, NULL
,
6240 NULL
, NULL
, 0, aggregate
);
6242 /* Unlock aggregate address configuration. */
6243 bgp_node_set_bgp_aggregate_info(rn
, NULL
);
6245 if (aggregate
->community
)
6246 community_free(&aggregate
->community
);
6248 if (aggregate
->community_hash
) {
6249 /* Delete all communities in the hash.
6251 hash_clean(aggregate
->community_hash
,
6252 bgp_aggr_community_remove
);
6253 /* Free up the community_hash.
6255 hash_free(aggregate
->community_hash
);
6258 if (aggregate
->ecommunity
)
6259 ecommunity_free(&aggregate
->ecommunity
);
6261 if (aggregate
->ecommunity_hash
) {
6262 /* Delete all ecommunities in the hash.
6264 hash_clean(aggregate
->ecommunity_hash
,
6265 bgp_aggr_ecommunity_remove
);
6266 /* Free up the ecommunity_hash.
6268 hash_free(aggregate
->ecommunity_hash
);
6271 if (aggregate
->lcommunity
)
6272 lcommunity_free(&aggregate
->lcommunity
);
6274 if (aggregate
->lcommunity_hash
) {
6275 /* Delete all lcommunities in the hash.
6277 hash_clean(aggregate
->lcommunity_hash
,
6278 bgp_aggr_lcommunity_remove
);
6279 /* Free up the lcommunity_hash.
6281 hash_free(aggregate
->lcommunity_hash
);
6284 if (aggregate
->aspath
)
6285 aspath_free(aggregate
->aspath
);
6287 if (aggregate
->aspath_hash
) {
6288 /* Delete all as-paths in the hash.
6290 hash_clean(aggregate
->aspath_hash
,
6291 bgp_aggr_aspath_remove
);
6292 /* Free up the aspath_hash.
6294 hash_free(aggregate
->aspath_hash
);
6297 bgp_aggregate_free(aggregate
);
6298 bgp_unlock_node(rn
);
6299 bgp_unlock_node(rn
);
6304 static int bgp_aggregate_set(struct vty
*vty
, const char *prefix_str
, afi_t afi
,
6305 safi_t safi
, uint8_t summary_only
, uint8_t as_set
)
6307 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
6310 struct bgp_node
*rn
;
6311 struct bgp_aggregate
*aggregate
;
6313 /* Convert string to prefix structure. */
6314 ret
= str2prefix(prefix_str
, &p
);
6316 vty_out(vty
, "Malformed prefix\n");
6317 return CMD_WARNING_CONFIG_FAILED
;
6321 if ((afi
== AFI_IP
&& p
.prefixlen
== IPV4_MAX_BITLEN
) ||
6322 (afi
== AFI_IP6
&& p
.prefixlen
== IPV6_MAX_BITLEN
)) {
6323 vty_out(vty
, "Specified prefix: %s will not result in any useful aggregation, disallowing\n",
6325 return CMD_WARNING_CONFIG_FAILED
;
6328 /* Old configuration check. */
6329 rn
= bgp_node_get(bgp
->aggregate
[afi
][safi
], &p
);
6331 if (bgp_node_has_bgp_path_info_data(rn
)) {
6332 vty_out(vty
, "There is already same aggregate network.\n");
6333 /* try to remove the old entry */
6334 ret
= bgp_aggregate_unset(vty
, prefix_str
, afi
, safi
);
6336 vty_out(vty
, "Error deleting aggregate.\n");
6337 bgp_unlock_node(rn
);
6338 return CMD_WARNING_CONFIG_FAILED
;
6342 /* Make aggregate address structure. */
6343 aggregate
= bgp_aggregate_new();
6344 aggregate
->summary_only
= summary_only
;
6345 aggregate
->as_set
= as_set
;
6346 aggregate
->safi
= safi
;
6347 bgp_node_set_bgp_aggregate_info(rn
, aggregate
);
6349 /* Aggregate address insert into BGP routing table. */
6350 bgp_aggregate_route(bgp
, &p
, afi
, safi
, aggregate
);
6355 DEFUN (aggregate_address
,
6356 aggregate_address_cmd
,
6357 "aggregate-address A.B.C.D/M [<as-set [summary-only]|summary-only [as-set]>]",
6358 "Configure BGP aggregate entries\n"
6359 "Aggregate prefix\n"
6360 "Generate AS set path information\n"
6361 "Filter more specific routes from updates\n"
6362 "Filter more specific routes from updates\n"
6363 "Generate AS set path information\n")
6366 argv_find(argv
, argc
, "A.B.C.D/M", &idx
);
6367 char *prefix
= argv
[idx
]->arg
;
6369 argv_find(argv
, argc
, "as-set", &idx
) ? AGGREGATE_AS_SET
: 0;
6371 int summary_only
= argv_find(argv
, argc
, "summary-only", &idx
)
6372 ? AGGREGATE_SUMMARY_ONLY
6375 return bgp_aggregate_set(vty
, prefix
, AFI_IP
, bgp_node_safi(vty
),
6376 summary_only
, as_set
);
6379 DEFUN (aggregate_address_mask
,
6380 aggregate_address_mask_cmd
,
6381 "aggregate-address A.B.C.D A.B.C.D [<as-set [summary-only]|summary-only [as-set]>]",
6382 "Configure BGP aggregate entries\n"
6383 "Aggregate address\n"
6385 "Generate AS set path information\n"
6386 "Filter more specific routes from updates\n"
6387 "Filter more specific routes from updates\n"
6388 "Generate AS set path information\n")
6391 argv_find(argv
, argc
, "A.B.C.D", &idx
);
6392 char *prefix
= argv
[idx
]->arg
;
6393 char *mask
= argv
[idx
+ 1]->arg
;
6395 argv_find(argv
, argc
, "as-set", &idx
) ? AGGREGATE_AS_SET
: 0;
6397 int summary_only
= argv_find(argv
, argc
, "summary-only", &idx
)
6398 ? AGGREGATE_SUMMARY_ONLY
6401 char prefix_str
[BUFSIZ
];
6402 int ret
= netmask_str2prefix_str(prefix
, mask
, prefix_str
);
6405 vty_out(vty
, "%% Inconsistent address and mask\n");
6406 return CMD_WARNING_CONFIG_FAILED
;
6409 return bgp_aggregate_set(vty
, prefix_str
, AFI_IP
, bgp_node_safi(vty
),
6410 summary_only
, as_set
);
6413 DEFUN (no_aggregate_address
,
6414 no_aggregate_address_cmd
,
6415 "no aggregate-address A.B.C.D/M [<as-set [summary-only]|summary-only [as-set]>]",
6417 "Configure BGP aggregate entries\n"
6418 "Aggregate prefix\n"
6419 "Generate AS set path information\n"
6420 "Filter more specific routes from updates\n"
6421 "Filter more specific routes from updates\n"
6422 "Generate AS set path information\n")
6425 argv_find(argv
, argc
, "A.B.C.D/M", &idx
);
6426 char *prefix
= argv
[idx
]->arg
;
6427 return bgp_aggregate_unset(vty
, prefix
, AFI_IP
, bgp_node_safi(vty
));
6430 DEFUN (no_aggregate_address_mask
,
6431 no_aggregate_address_mask_cmd
,
6432 "no aggregate-address A.B.C.D A.B.C.D [<as-set [summary-only]|summary-only [as-set]>]",
6434 "Configure BGP aggregate entries\n"
6435 "Aggregate address\n"
6437 "Generate AS set path information\n"
6438 "Filter more specific routes from updates\n"
6439 "Filter more specific routes from updates\n"
6440 "Generate AS set path information\n")
6443 argv_find(argv
, argc
, "A.B.C.D", &idx
);
6444 char *prefix
= argv
[idx
]->arg
;
6445 char *mask
= argv
[idx
+ 1]->arg
;
6447 char prefix_str
[BUFSIZ
];
6448 int ret
= netmask_str2prefix_str(prefix
, mask
, prefix_str
);
6451 vty_out(vty
, "%% Inconsistent address and mask\n");
6452 return CMD_WARNING_CONFIG_FAILED
;
6455 return bgp_aggregate_unset(vty
, prefix_str
, AFI_IP
, bgp_node_safi(vty
));
6458 DEFUN (ipv6_aggregate_address
,
6459 ipv6_aggregate_address_cmd
,
6460 "aggregate-address X:X::X:X/M [summary-only]",
6461 "Configure BGP aggregate entries\n"
6462 "Aggregate prefix\n"
6463 "Filter more specific routes from updates\n")
6466 argv_find(argv
, argc
, "X:X::X:X/M", &idx
);
6467 char *prefix
= argv
[idx
]->arg
;
6468 int sum_only
= argv_find(argv
, argc
, "summary-only", &idx
)
6469 ? AGGREGATE_SUMMARY_ONLY
6471 return bgp_aggregate_set(vty
, prefix
, AFI_IP6
, SAFI_UNICAST
, sum_only
,
6475 DEFUN (no_ipv6_aggregate_address
,
6476 no_ipv6_aggregate_address_cmd
,
6477 "no aggregate-address X:X::X:X/M [summary-only]",
6479 "Configure BGP aggregate entries\n"
6480 "Aggregate prefix\n"
6481 "Filter more specific routes from updates\n")
6484 argv_find(argv
, argc
, "X:X::X:X/M", &idx
);
6485 char *prefix
= argv
[idx
]->arg
;
6486 return bgp_aggregate_unset(vty
, prefix
, AFI_IP6
, SAFI_UNICAST
);
6489 /* Redistribute route treatment. */
6490 void bgp_redistribute_add(struct bgp
*bgp
, struct prefix
*p
,
6491 const union g_addr
*nexthop
, ifindex_t ifindex
,
6492 enum nexthop_types_t nhtype
, uint32_t metric
,
6493 uint8_t type
, unsigned short instance
,
6496 struct bgp_path_info
*new;
6497 struct bgp_path_info
*bpi
;
6498 struct bgp_path_info rmap_path
;
6499 struct bgp_node
*bn
;
6501 struct attr
*new_attr
;
6504 struct bgp_redist
*red
;
6506 /* Make default attribute. */
6507 bgp_attr_default_set(&attr
, BGP_ORIGIN_INCOMPLETE
);
6510 case NEXTHOP_TYPE_IFINDEX
:
6512 case NEXTHOP_TYPE_IPV4
:
6513 case NEXTHOP_TYPE_IPV4_IFINDEX
:
6514 attr
.nexthop
= nexthop
->ipv4
;
6516 case NEXTHOP_TYPE_IPV6
:
6517 case NEXTHOP_TYPE_IPV6_IFINDEX
:
6518 attr
.mp_nexthop_global
= nexthop
->ipv6
;
6519 attr
.mp_nexthop_len
= BGP_ATTR_NHLEN_IPV6_GLOBAL
;
6521 case NEXTHOP_TYPE_BLACKHOLE
:
6522 switch (p
->family
) {
6524 attr
.nexthop
.s_addr
= INADDR_ANY
;
6527 memset(&attr
.mp_nexthop_global
, 0,
6528 sizeof(attr
.mp_nexthop_global
));
6529 attr
.mp_nexthop_len
= BGP_ATTR_NHLEN_IPV6_GLOBAL
;
6534 attr
.nh_ifindex
= ifindex
;
6537 attr
.flag
|= ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
);
6540 afi
= family2afi(p
->family
);
6542 red
= bgp_redist_lookup(bgp
, afi
, type
, instance
);
6544 struct attr attr_new
;
6546 /* Copy attribute for modification. */
6547 bgp_attr_dup(&attr_new
, &attr
);
6549 if (red
->redist_metric_flag
)
6550 attr_new
.med
= red
->redist_metric
;
6552 /* Apply route-map. */
6553 if (red
->rmap
.name
) {
6554 memset(&rmap_path
, 0, sizeof(struct bgp_path_info
));
6555 rmap_path
.peer
= bgp
->peer_self
;
6556 rmap_path
.attr
= &attr_new
;
6558 SET_FLAG(bgp
->peer_self
->rmap_type
,
6559 PEER_RMAP_TYPE_REDISTRIBUTE
);
6561 ret
= route_map_apply(red
->rmap
.map
, p
, RMAP_BGP
,
6564 bgp
->peer_self
->rmap_type
= 0;
6566 if (ret
== RMAP_DENYMATCH
) {
6567 /* Free uninterned attribute. */
6568 bgp_attr_flush(&attr_new
);
6570 /* Unintern original. */
6571 aspath_unintern(&attr
.aspath
);
6572 bgp_redistribute_delete(bgp
, p
, type
, instance
);
6577 if (bgp_flag_check(bgp
, BGP_FLAG_GRACEFUL_SHUTDOWN
))
6578 bgp_attr_add_gshut_community(&attr_new
);
6580 bn
= bgp_afi_node_get(bgp
->rib
[afi
][SAFI_UNICAST
], afi
,
6581 SAFI_UNICAST
, p
, NULL
);
6583 new_attr
= bgp_attr_intern(&attr_new
);
6585 for (bpi
= bgp_node_get_bgp_path_info(bn
); bpi
;
6587 if (bpi
->peer
== bgp
->peer_self
6588 && bpi
->sub_type
== BGP_ROUTE_REDISTRIBUTE
)
6592 /* Ensure the (source route) type is updated. */
6594 if (attrhash_cmp(bpi
->attr
, new_attr
)
6595 && !CHECK_FLAG(bpi
->flags
, BGP_PATH_REMOVED
)) {
6596 bgp_attr_unintern(&new_attr
);
6597 aspath_unintern(&attr
.aspath
);
6598 bgp_unlock_node(bn
);
6601 /* The attribute is changed. */
6602 bgp_path_info_set_flag(bn
, bpi
,
6603 BGP_PATH_ATTR_CHANGED
);
6605 /* Rewrite BGP route information. */
6606 if (CHECK_FLAG(bpi
->flags
, BGP_PATH_REMOVED
))
6607 bgp_path_info_restore(bn
, bpi
);
6609 bgp_aggregate_decrement(
6610 bgp
, p
, bpi
, afi
, SAFI_UNICAST
);
6611 bgp_attr_unintern(&bpi
->attr
);
6612 bpi
->attr
= new_attr
;
6613 bpi
->uptime
= bgp_clock();
6615 /* Process change. */
6616 bgp_aggregate_increment(bgp
, p
, bpi
, afi
,
6618 bgp_process(bgp
, bn
, afi
, SAFI_UNICAST
);
6619 bgp_unlock_node(bn
);
6620 aspath_unintern(&attr
.aspath
);
6622 if ((bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
)
6624 == BGP_INSTANCE_TYPE_DEFAULT
)) {
6626 vpn_leak_from_vrf_update(
6627 bgp_get_default(), bgp
, bpi
);
6633 new = info_make(type
, BGP_ROUTE_REDISTRIBUTE
, instance
,
6634 bgp
->peer_self
, new_attr
, bn
);
6635 SET_FLAG(new->flags
, BGP_PATH_VALID
);
6637 bgp_aggregate_increment(bgp
, p
, new, afi
, SAFI_UNICAST
);
6638 bgp_path_info_add(bn
, new);
6639 bgp_unlock_node(bn
);
6640 bgp_process(bgp
, bn
, afi
, SAFI_UNICAST
);
6642 if ((bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
)
6643 || (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
6645 vpn_leak_from_vrf_update(bgp_get_default(), bgp
, new);
6649 /* Unintern original. */
6650 aspath_unintern(&attr
.aspath
);
6653 void bgp_redistribute_delete(struct bgp
*bgp
, struct prefix
*p
, uint8_t type
,
6654 unsigned short instance
)
6657 struct bgp_node
*rn
;
6658 struct bgp_path_info
*pi
;
6659 struct bgp_redist
*red
;
6661 afi
= family2afi(p
->family
);
6663 red
= bgp_redist_lookup(bgp
, afi
, type
, instance
);
6665 rn
= bgp_afi_node_get(bgp
->rib
[afi
][SAFI_UNICAST
], afi
,
6666 SAFI_UNICAST
, p
, NULL
);
6668 for (pi
= bgp_node_get_bgp_path_info(rn
); pi
; pi
= pi
->next
)
6669 if (pi
->peer
== bgp
->peer_self
&& pi
->type
== type
)
6673 if ((bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
)
6674 || (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
6676 vpn_leak_from_vrf_withdraw(bgp_get_default(),
6679 bgp_aggregate_decrement(bgp
, p
, pi
, afi
, SAFI_UNICAST
);
6680 bgp_path_info_delete(rn
, pi
);
6681 bgp_process(bgp
, rn
, afi
, SAFI_UNICAST
);
6683 bgp_unlock_node(rn
);
6687 /* Withdraw specified route type's route. */
6688 void bgp_redistribute_withdraw(struct bgp
*bgp
, afi_t afi
, int type
,
6689 unsigned short instance
)
6691 struct bgp_node
*rn
;
6692 struct bgp_path_info
*pi
;
6693 struct bgp_table
*table
;
6695 table
= bgp
->rib
[afi
][SAFI_UNICAST
];
6697 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
)) {
6698 for (pi
= bgp_node_get_bgp_path_info(rn
); pi
; pi
= pi
->next
)
6699 if (pi
->peer
== bgp
->peer_self
&& pi
->type
== type
6700 && pi
->instance
== instance
)
6704 if ((bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
)
6705 || (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)) {
6707 vpn_leak_from_vrf_withdraw(bgp_get_default(),
6710 bgp_aggregate_decrement(bgp
, &rn
->p
, pi
, afi
,
6712 bgp_path_info_delete(rn
, pi
);
6713 bgp_process(bgp
, rn
, afi
, SAFI_UNICAST
);
6718 /* Static function to display route. */
6719 static void route_vty_out_route(struct prefix
*p
, struct vty
*vty
,
6726 if (p
->family
== AF_INET
) {
6730 inet_ntop(p
->family
, &p
->u
.prefix
, buf
, BUFSIZ
),
6733 json_object_string_add(json
, "prefix",
6734 inet_ntop(p
->family
,
6737 json_object_int_add(json
, "prefixLen", p
->prefixlen
);
6738 prefix2str(p
, buf2
, PREFIX_STRLEN
);
6739 json_object_string_add(json
, "network", buf2
);
6741 } else if (p
->family
== AF_ETHERNET
) {
6742 prefix2str(p
, buf
, PREFIX_STRLEN
);
6743 len
= vty_out(vty
, "%s", buf
);
6744 } else if (p
->family
== AF_EVPN
) {
6748 bgp_evpn_route2str((struct prefix_evpn
*)p
, buf
,
6751 bgp_evpn_route2json((struct prefix_evpn
*)p
, json
);
6752 } else if (p
->family
== AF_FLOWSPEC
) {
6753 route_vty_out_flowspec(vty
, p
, NULL
,
6755 NLRI_STRING_FORMAT_JSON_SIMPLE
:
6756 NLRI_STRING_FORMAT_MIN
, json
);
6761 inet_ntop(p
->family
, &p
->u
.prefix
, buf
, BUFSIZ
),
6764 json_object_string_add(json
, "prefix",
6765 inet_ntop(p
->family
,
6768 json_object_int_add(json
, "prefixLen", p
->prefixlen
);
6769 prefix2str(p
, buf2
, PREFIX_STRLEN
);
6770 json_object_string_add(json
, "network", buf2
);
6777 vty_out(vty
, "\n%*s", 20, " ");
6779 vty_out(vty
, "%*s", len
, " ");
6783 enum bgp_display_type
{
6787 /* Print the short form route status for a bgp_path_info */
6788 static void route_vty_short_status_out(struct vty
*vty
,
6789 struct bgp_path_info
*path
,
6790 json_object
*json_path
)
6794 /* Route status display. */
6795 if (CHECK_FLAG(path
->flags
, BGP_PATH_REMOVED
))
6796 json_object_boolean_true_add(json_path
, "removed");
6798 if (CHECK_FLAG(path
->flags
, BGP_PATH_STALE
))
6799 json_object_boolean_true_add(json_path
, "stale");
6801 if (path
->extra
&& path
->extra
->suppress
)
6802 json_object_boolean_true_add(json_path
, "suppressed");
6804 if (CHECK_FLAG(path
->flags
, BGP_PATH_VALID
)
6805 && !CHECK_FLAG(path
->flags
, BGP_PATH_HISTORY
))
6806 json_object_boolean_true_add(json_path
, "valid");
6809 if (CHECK_FLAG(path
->flags
, BGP_PATH_HISTORY
))
6810 json_object_boolean_true_add(json_path
, "history");
6812 if (CHECK_FLAG(path
->flags
, BGP_PATH_DAMPED
))
6813 json_object_boolean_true_add(json_path
, "damped");
6815 if (CHECK_FLAG(path
->flags
, BGP_PATH_SELECTED
))
6816 json_object_boolean_true_add(json_path
, "bestpath");
6818 if (CHECK_FLAG(path
->flags
, BGP_PATH_MULTIPATH
))
6819 json_object_boolean_true_add(json_path
, "multipath");
6821 /* Internal route. */
6822 if ((path
->peer
->as
)
6823 && (path
->peer
->as
== path
->peer
->local_as
))
6824 json_object_string_add(json_path
, "pathFrom",
6827 json_object_string_add(json_path
, "pathFrom",
6833 /* Route status display. */
6834 if (CHECK_FLAG(path
->flags
, BGP_PATH_REMOVED
))
6836 else if (CHECK_FLAG(path
->flags
, BGP_PATH_STALE
))
6838 else if (path
->extra
&& path
->extra
->suppress
)
6840 else if (CHECK_FLAG(path
->flags
, BGP_PATH_VALID
)
6841 && !CHECK_FLAG(path
->flags
, BGP_PATH_HISTORY
))
6847 if (CHECK_FLAG(path
->flags
, BGP_PATH_HISTORY
))
6849 else if (CHECK_FLAG(path
->flags
, BGP_PATH_DAMPED
))
6851 else if (CHECK_FLAG(path
->flags
, BGP_PATH_SELECTED
))
6853 else if (CHECK_FLAG(path
->flags
, BGP_PATH_MULTIPATH
))
6858 /* Internal route. */
6859 if (path
->peer
&& (path
->peer
->as
)
6860 && (path
->peer
->as
== path
->peer
->local_as
))
6866 /* called from terminal list command */
6867 void route_vty_out(struct vty
*vty
, struct prefix
*p
,
6868 struct bgp_path_info
*path
, int display
, safi_t safi
,
6869 json_object
*json_paths
)
6872 json_object
*json_path
= NULL
;
6873 json_object
*json_nexthops
= NULL
;
6874 json_object
*json_nexthop_global
= NULL
;
6875 json_object
*json_nexthop_ll
= NULL
;
6876 char vrf_id_str
[VRF_NAMSIZ
] = {0};
6878 CHECK_FLAG(path
->flags
, BGP_PATH_ANNC_NH_SELF
) ? true : false;
6879 bool nexthop_othervrf
= false;
6880 vrf_id_t nexthop_vrfid
= VRF_DEFAULT
;
6881 const char *nexthop_vrfname
= VRF_DEFAULT_NAME
;
6884 json_path
= json_object_new_object();
6886 /* short status lead text */
6887 route_vty_short_status_out(vty
, path
, json_path
);
6890 /* print prefix and mask */
6892 route_vty_out_route(p
, vty
, json_path
);
6894 vty_out(vty
, "%*s", 17, " ");
6896 route_vty_out_route(p
, vty
, json_path
);
6899 /* Print attribute */
6903 json_object_array_add(json_paths
, json_path
);
6911 * If vrf id of nexthop is different from that of prefix,
6912 * set up printable string to append
6914 if (path
->extra
&& path
->extra
->bgp_orig
) {
6915 const char *self
= "";
6920 nexthop_othervrf
= true;
6921 nexthop_vrfid
= path
->extra
->bgp_orig
->vrf_id
;
6923 if (path
->extra
->bgp_orig
->vrf_id
== VRF_UNKNOWN
)
6924 snprintf(vrf_id_str
, sizeof(vrf_id_str
),
6925 "@%s%s", VRFID_NONE_STR
, self
);
6927 snprintf(vrf_id_str
, sizeof(vrf_id_str
), "@%u%s",
6928 path
->extra
->bgp_orig
->vrf_id
, self
);
6930 if (path
->extra
->bgp_orig
->inst_type
6931 != BGP_INSTANCE_TYPE_DEFAULT
)
6933 nexthop_vrfname
= path
->extra
->bgp_orig
->name
;
6935 const char *self
= "";
6940 snprintf(vrf_id_str
, sizeof(vrf_id_str
), "%s", self
);
6944 * For ENCAP and EVPN routes, nexthop address family is not
6945 * neccessarily the same as the prefix address family.
6946 * Both SAFI_MPLS_VPN and SAFI_ENCAP use the MP nexthop field
6947 * EVPN routes are also exchanged with a MP nexthop. Currently,
6949 * is only IPv4, the value will be present in either
6951 * attr->mp_nexthop_global_in
6953 if ((safi
== SAFI_ENCAP
) || (safi
== SAFI_MPLS_VPN
)) {
6956 int af
= NEXTHOP_FAMILY(attr
->mp_nexthop_len
);
6960 sprintf(nexthop
, "%s",
6961 inet_ntop(af
, &attr
->mp_nexthop_global_in
, buf
,
6965 sprintf(nexthop
, "%s",
6966 inet_ntop(af
, &attr
->mp_nexthop_global
, buf
,
6970 sprintf(nexthop
, "?");
6975 json_nexthop_global
= json_object_new_object();
6977 json_object_string_add(json_nexthop_global
, "afi",
6978 (af
== AF_INET
) ? "ip" : "ipv6");
6979 json_object_string_add(json_nexthop_global
,
6980 (af
== AF_INET
) ? "ip" : "ipv6",
6982 json_object_boolean_true_add(json_nexthop_global
,
6985 vty_out(vty
, "%s%s", nexthop
, vrf_id_str
);
6986 } else if (safi
== SAFI_EVPN
) {
6988 json_nexthop_global
= json_object_new_object();
6990 json_object_string_add(json_nexthop_global
, "ip",
6991 inet_ntoa(attr
->nexthop
));
6992 json_object_string_add(json_nexthop_global
, "afi",
6994 json_object_boolean_true_add(json_nexthop_global
,
6997 vty_out(vty
, "%-16s%s", inet_ntoa(attr
->nexthop
),
6999 } else if (safi
== SAFI_FLOWSPEC
) {
7000 if (attr
->nexthop
.s_addr
!= 0) {
7002 json_nexthop_global
= json_object_new_object();
7003 json_object_string_add(
7004 json_nexthop_global
, "ip",
7005 inet_ntoa(attr
->nexthop
));
7006 json_object_string_add(json_nexthop_global
,
7008 json_object_boolean_true_add(
7009 json_nexthop_global
,
7012 vty_out(vty
, "%-16s", inet_ntoa(attr
->nexthop
));
7015 } else if (p
->family
== AF_INET
&& !BGP_ATTR_NEXTHOP_AFI_IP6(attr
)) {
7017 json_nexthop_global
= json_object_new_object();
7019 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_EVPN
))
7020 json_object_string_add(
7021 json_nexthop_global
, "ip",
7022 inet_ntoa(attr
->mp_nexthop_global_in
));
7024 json_object_string_add(
7025 json_nexthop_global
, "ip",
7026 inet_ntoa(attr
->nexthop
));
7028 json_object_string_add(json_nexthop_global
, "afi",
7030 json_object_boolean_true_add(json_nexthop_global
,
7035 snprintf(buf
, sizeof(buf
), "%s%s",
7036 inet_ntoa(attr
->nexthop
), vrf_id_str
);
7037 vty_out(vty
, "%-16s", buf
);
7042 else if (p
->family
== AF_INET6
|| BGP_ATTR_NEXTHOP_AFI_IP6(attr
)) {
7047 json_nexthop_global
= json_object_new_object();
7048 json_object_string_add(
7049 json_nexthop_global
, "ip",
7050 inet_ntop(AF_INET6
, &attr
->mp_nexthop_global
,
7052 json_object_string_add(json_nexthop_global
, "afi",
7054 json_object_string_add(json_nexthop_global
, "scope",
7057 /* We display both LL & GL if both have been
7059 if ((attr
->mp_nexthop_len
== 32)
7060 || (path
->peer
->conf_if
)) {
7061 json_nexthop_ll
= json_object_new_object();
7062 json_object_string_add(
7063 json_nexthop_ll
, "ip",
7065 &attr
->mp_nexthop_local
, buf
,
7067 json_object_string_add(json_nexthop_ll
, "afi",
7069 json_object_string_add(json_nexthop_ll
, "scope",
7072 if ((IPV6_ADDR_CMP(&attr
->mp_nexthop_global
,
7073 &attr
->mp_nexthop_local
)
7075 && !attr
->mp_nexthop_prefer_global
)
7076 json_object_boolean_true_add(
7077 json_nexthop_ll
, "used");
7079 json_object_boolean_true_add(
7080 json_nexthop_global
, "used");
7082 json_object_boolean_true_add(
7083 json_nexthop_global
, "used");
7085 /* Display LL if LL/Global both in table unless
7086 * prefer-global is set */
7087 if (((attr
->mp_nexthop_len
== 32)
7088 && !attr
->mp_nexthop_prefer_global
)
7089 || (path
->peer
->conf_if
)) {
7090 if (path
->peer
->conf_if
) {
7091 len
= vty_out(vty
, "%s",
7092 path
->peer
->conf_if
);
7093 len
= 16 - len
; /* len of IPv6
7099 vty_out(vty
, "\n%*s", 36, " ");
7101 vty_out(vty
, "%*s", len
, " ");
7107 &attr
->mp_nexthop_local
,
7113 vty_out(vty
, "\n%*s", 36, " ");
7115 vty_out(vty
, "%*s", len
, " ");
7121 &attr
->mp_nexthop_global
, buf
,
7127 vty_out(vty
, "\n%*s", 36, " ");
7129 vty_out(vty
, "%*s", len
, " ");
7135 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
))
7139 * Adding "metric" field to match with corresponding
7140 * CLI. "med" will be deprecated in future.
7142 json_object_int_add(json_path
, "med", attr
->med
);
7143 json_object_int_add(json_path
, "metric", attr
->med
);
7145 vty_out(vty
, "%10u", attr
->med
);
7146 else if (!json_paths
)
7150 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
))
7154 * Adding "locPrf" field to match with corresponding
7155 * CLI. "localPref" will be deprecated in future.
7157 json_object_int_add(json_path
, "localpref",
7159 json_object_int_add(json_path
, "locPrf",
7162 vty_out(vty
, "%7u", attr
->local_pref
);
7163 else if (!json_paths
)
7167 json_object_int_add(json_path
, "weight", attr
->weight
);
7169 vty_out(vty
, "%7u ", attr
->weight
);
7173 json_object_string_add(
7174 json_path
, "peerId",
7175 sockunion2str(&path
->peer
->su
, buf
, SU_ADDRSTRLEN
));
7183 * Adding "path" field to match with corresponding
7184 * CLI. "aspath" will be deprecated in future.
7186 json_object_string_add(json_path
, "aspath",
7188 json_object_string_add(json_path
, "path",
7191 aspath_print_vty(vty
, "%s", attr
->aspath
, " ");
7196 json_object_string_add(json_path
, "origin",
7197 bgp_origin_long_str
[attr
->origin
]);
7199 vty_out(vty
, "%s", bgp_origin_str
[attr
->origin
]);
7203 json_object_boolean_true_add(json_path
,
7204 "announceNexthopSelf");
7205 if (nexthop_othervrf
) {
7206 json_object_string_add(json_path
, "nhVrfName",
7209 json_object_int_add(json_path
, "nhVrfId",
7210 ((nexthop_vrfid
== VRF_UNKNOWN
)
7212 : (int)nexthop_vrfid
));
7217 if (json_nexthop_global
|| json_nexthop_ll
) {
7218 json_nexthops
= json_object_new_array();
7220 if (json_nexthop_global
)
7221 json_object_array_add(json_nexthops
,
7222 json_nexthop_global
);
7224 if (json_nexthop_ll
)
7225 json_object_array_add(json_nexthops
,
7228 json_object_object_add(json_path
, "nexthops",
7232 json_object_array_add(json_paths
, json_path
);
7236 /* prints an additional line, indented, with VNC info, if
7238 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_ENCAP
))
7239 rfapi_vty_out_vncinfo(vty
, p
, path
, safi
);
7244 /* called from terminal list command */
7245 void route_vty_out_tmp(struct vty
*vty
, struct prefix
*p
, struct attr
*attr
,
7246 safi_t safi
, bool use_json
, json_object
*json_ar
)
7248 json_object
*json_status
= NULL
;
7249 json_object
*json_net
= NULL
;
7252 /* Route status display. */
7254 json_status
= json_object_new_object();
7255 json_net
= json_object_new_object();
7262 /* print prefix and mask */
7264 json_object_string_add(
7265 json_net
, "addrPrefix",
7266 inet_ntop(p
->family
, &p
->u
.prefix
, buff
, BUFSIZ
));
7267 json_object_int_add(json_net
, "prefixLen", p
->prefixlen
);
7268 prefix2str(p
, buf2
, PREFIX_STRLEN
);
7269 json_object_string_add(json_net
, "network", buf2
);
7271 route_vty_out_route(p
, vty
, NULL
);
7273 /* Print attribute */
7276 if (p
->family
== AF_INET
7277 && (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
7278 || safi
== SAFI_EVPN
7279 || !BGP_ATTR_NEXTHOP_AFI_IP6(attr
))) {
7280 if (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
7281 || safi
== SAFI_EVPN
)
7282 json_object_string_add(
7283 json_net
, "nextHop",
7285 attr
->mp_nexthop_global_in
));
7287 json_object_string_add(
7288 json_net
, "nextHop",
7289 inet_ntoa(attr
->nexthop
));
7290 } else if (p
->family
== AF_INET6
7291 || BGP_ATTR_NEXTHOP_AFI_IP6(attr
)) {
7294 json_object_string_add(
7295 json_net
, "nextHopGlobal",
7297 &attr
->mp_nexthop_global
, buf
,
7302 & ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
))
7303 json_object_int_add(json_net
, "metric",
7306 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
)) {
7309 * Adding "locPrf" field to match with
7310 * corresponding CLI. "localPref" will be
7311 * deprecated in future.
7313 json_object_int_add(json_net
, "localPref",
7315 json_object_int_add(json_net
, "locPrf",
7319 json_object_int_add(json_net
, "weight", attr
->weight
);
7325 * Adding "path" field to match with
7326 * corresponding CLI. "localPref" will be
7327 * deprecated in future.
7329 json_object_string_add(json_net
, "asPath",
7331 json_object_string_add(json_net
, "path",
7336 json_object_string_add(json_net
, "bgpOriginCode",
7337 bgp_origin_str
[attr
->origin
]);
7339 if (p
->family
== AF_INET
7340 && (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
7341 || safi
== SAFI_EVPN
7342 || !BGP_ATTR_NEXTHOP_AFI_IP6(attr
))) {
7343 if (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
7344 || safi
== SAFI_EVPN
)
7345 vty_out(vty
, "%-16s",
7347 attr
->mp_nexthop_global_in
));
7349 vty_out(vty
, "%-16s",
7350 inet_ntoa(attr
->nexthop
));
7351 } else if (p
->family
== AF_INET6
7352 || BGP_ATTR_NEXTHOP_AFI_IP6(attr
)) {
7359 &attr
->mp_nexthop_global
, buf
,
7363 vty_out(vty
, "\n%*s", 36, " ");
7365 vty_out(vty
, "%*s", len
, " ");
7368 & ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
))
7369 vty_out(vty
, "%10u", attr
->med
);
7373 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
))
7374 vty_out(vty
, "%7u", attr
->local_pref
);
7378 vty_out(vty
, "%7u ", attr
->weight
);
7382 aspath_print_vty(vty
, "%s", attr
->aspath
, " ");
7385 vty_out(vty
, "%s", bgp_origin_str
[attr
->origin
]);
7389 json_object_boolean_true_add(json_status
, "*");
7390 json_object_boolean_true_add(json_status
, ">");
7391 json_object_object_add(json_net
, "appliedStatusSymbols",
7393 char buf_cut
[BUFSIZ
];
7394 json_object_object_add(
7396 inet_ntop(p
->family
, &p
->u
.prefix
, buf_cut
, BUFSIZ
),
7402 void route_vty_out_tag(struct vty
*vty
, struct prefix
*p
,
7403 struct bgp_path_info
*path
, int display
, safi_t safi
,
7406 json_object
*json_out
= NULL
;
7408 mpls_label_t label
= MPLS_INVALID_LABEL
;
7414 json_out
= json_object_new_object();
7416 /* short status lead text */
7417 route_vty_short_status_out(vty
, path
, json_out
);
7419 /* print prefix and mask */
7422 route_vty_out_route(p
, vty
, NULL
);
7424 vty_out(vty
, "%*s", 17, " ");
7427 /* Print attribute */
7430 if (((p
->family
== AF_INET
)
7431 && ((safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
)))
7432 || (safi
== SAFI_EVPN
&& !BGP_ATTR_NEXTHOP_AFI_IP6(attr
))
7433 || (!BGP_ATTR_NEXTHOP_AFI_IP6(attr
))) {
7434 if (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
7435 || safi
== SAFI_EVPN
) {
7437 json_object_string_add(
7438 json_out
, "mpNexthopGlobalIn",
7440 attr
->mp_nexthop_global_in
));
7442 vty_out(vty
, "%-16s",
7444 attr
->mp_nexthop_global_in
));
7447 json_object_string_add(
7448 json_out
, "nexthop",
7449 inet_ntoa(attr
->nexthop
));
7451 vty_out(vty
, "%-16s",
7452 inet_ntoa(attr
->nexthop
));
7454 } else if (((p
->family
== AF_INET6
)
7455 && ((safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
)))
7456 || (safi
== SAFI_EVPN
7457 && BGP_ATTR_NEXTHOP_AFI_IP6(attr
))
7458 || (BGP_ATTR_NEXTHOP_AFI_IP6(attr
))) {
7462 if (attr
->mp_nexthop_len
7463 == BGP_ATTR_NHLEN_IPV6_GLOBAL
) {
7465 json_object_string_add(
7466 json_out
, "mpNexthopGlobalIn",
7469 &attr
->mp_nexthop_global
,
7470 buf_a
, sizeof(buf_a
)));
7475 &attr
->mp_nexthop_global
,
7476 buf_a
, sizeof(buf_a
)));
7477 } else if (attr
->mp_nexthop_len
7478 == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL
) {
7481 &attr
->mp_nexthop_global
,
7482 buf_a
, sizeof(buf_a
));
7484 &attr
->mp_nexthop_local
,
7485 buf_b
, sizeof(buf_b
));
7486 sprintf(buf_c
, "%s(%s)", buf_a
, buf_b
);
7487 json_object_string_add(
7489 "mpNexthopGlobalLocal", buf_c
);
7491 vty_out(vty
, "%s(%s)",
7494 &attr
->mp_nexthop_global
,
7495 buf_a
, sizeof(buf_a
)),
7498 &attr
->mp_nexthop_local
,
7499 buf_b
, sizeof(buf_b
)));
7504 label
= decode_label(&path
->extra
->label
[0]);
7506 if (bgp_is_valid_label(&label
)) {
7508 json_object_int_add(json_out
, "notag", label
);
7509 json_object_array_add(json
, json_out
);
7511 vty_out(vty
, "notag/%d", label
);
7517 void route_vty_out_overlay(struct vty
*vty
, struct prefix
*p
,
7518 struct bgp_path_info
*path
, int display
,
7519 json_object
*json_paths
)
7523 json_object
*json_path
= NULL
;
7526 json_path
= json_object_new_object();
7531 /* short status lead text */
7532 route_vty_short_status_out(vty
, path
, json_path
);
7534 /* print prefix and mask */
7536 route_vty_out_route(p
, vty
, NULL
);
7538 vty_out(vty
, "%*s", 17, " ");
7540 /* Print attribute */
7544 int af
= NEXTHOP_FAMILY(attr
->mp_nexthop_len
);
7548 vty_out(vty
, "%-16s",
7549 inet_ntop(af
, &attr
->mp_nexthop_global_in
, buf
,
7553 vty_out(vty
, "%s(%s)",
7554 inet_ntop(af
, &attr
->mp_nexthop_global
, buf
,
7556 inet_ntop(af
, &attr
->mp_nexthop_local
, buf1
,
7563 char *str
= esi2str(&(attr
->evpn_overlay
.eth_s_id
));
7565 vty_out(vty
, "%s", str
);
7566 XFREE(MTYPE_TMP
, str
);
7568 if (is_evpn_prefix_ipaddr_v4((struct prefix_evpn
*)p
)) {
7570 inet_ntoa(attr
->evpn_overlay
.gw_ip
.ipv4
));
7571 } else if (is_evpn_prefix_ipaddr_v6((struct prefix_evpn
*)p
)) {
7574 &(attr
->evpn_overlay
.gw_ip
.ipv6
), buf
,
7577 if (attr
->ecommunity
) {
7579 struct ecommunity_val
*routermac
= ecommunity_lookup(
7580 attr
->ecommunity
, ECOMMUNITY_ENCODE_EVPN
,
7581 ECOMMUNITY_EVPN_SUBTYPE_ROUTERMAC
);
7583 mac
= ecom_mac2str((char *)routermac
->val
);
7585 vty_out(vty
, "/%s", (char *)mac
);
7586 XFREE(MTYPE_TMP
, mac
);
7594 /* dampening route */
7595 static void damp_route_vty_out(struct vty
*vty
, struct prefix
*p
,
7596 struct bgp_path_info
*path
, int display
,
7597 safi_t safi
, bool use_json
, json_object
*json
)
7601 char timebuf
[BGP_UPTIME_LEN
];
7603 /* short status lead text */
7604 route_vty_short_status_out(vty
, path
, json
);
7606 /* print prefix and mask */
7609 route_vty_out_route(p
, vty
, NULL
);
7611 vty_out(vty
, "%*s", 17, " ");
7614 len
= vty_out(vty
, "%s", path
->peer
->host
);
7618 vty_out(vty
, "\n%*s", 34, " ");
7621 json_object_int_add(json
, "peerHost", len
);
7623 vty_out(vty
, "%*s", len
, " ");
7627 bgp_damp_reuse_time_vty(vty
, path
, timebuf
, BGP_UPTIME_LEN
,
7631 bgp_damp_reuse_time_vty(vty
, path
, timebuf
,
7632 BGP_UPTIME_LEN
, use_json
,
7635 /* Print attribute */
7641 json_object_string_add(json
, "asPath",
7644 aspath_print_vty(vty
, "%s", attr
->aspath
, " ");
7649 json_object_string_add(json
, "origin",
7650 bgp_origin_str
[attr
->origin
]);
7652 vty_out(vty
, "%s", bgp_origin_str
[attr
->origin
]);
7659 static void flap_route_vty_out(struct vty
*vty
, struct prefix
*p
,
7660 struct bgp_path_info
*path
, int display
,
7661 safi_t safi
, bool use_json
, json_object
*json
)
7664 struct bgp_damp_info
*bdi
;
7665 char timebuf
[BGP_UPTIME_LEN
];
7671 bdi
= path
->extra
->damp_info
;
7673 /* short status lead text */
7674 route_vty_short_status_out(vty
, path
, json
);
7676 /* print prefix and mask */
7679 route_vty_out_route(p
, vty
, NULL
);
7681 vty_out(vty
, "%*s", 17, " ");
7684 len
= vty_out(vty
, "%s", path
->peer
->host
);
7688 vty_out(vty
, "\n%*s", 33, " ");
7691 json_object_int_add(json
, "peerHost", len
);
7693 vty_out(vty
, "%*s", len
, " ");
7696 len
= vty_out(vty
, "%d", bdi
->flap
);
7703 json_object_int_add(json
, "bdiFlap", len
);
7705 vty_out(vty
, "%*s", len
, " ");
7709 peer_uptime(bdi
->start_time
, timebuf
, BGP_UPTIME_LEN
, use_json
,
7712 vty_out(vty
, "%s ", peer_uptime(bdi
->start_time
, timebuf
,
7713 BGP_UPTIME_LEN
, 0, NULL
));
7715 if (CHECK_FLAG(path
->flags
, BGP_PATH_DAMPED
)
7716 && !CHECK_FLAG(path
->flags
, BGP_PATH_HISTORY
)) {
7718 bgp_damp_reuse_time_vty(vty
, path
, timebuf
,
7719 BGP_UPTIME_LEN
, use_json
, json
);
7722 bgp_damp_reuse_time_vty(vty
, path
, timebuf
,
7727 vty_out(vty
, "%*s ", 8, " ");
7730 /* Print attribute */
7736 json_object_string_add(json
, "asPath",
7739 aspath_print_vty(vty
, "%s", attr
->aspath
, " ");
7744 json_object_string_add(json
, "origin",
7745 bgp_origin_str
[attr
->origin
]);
7747 vty_out(vty
, "%s", bgp_origin_str
[attr
->origin
]);
7753 static void route_vty_out_advertised_to(struct vty
*vty
, struct peer
*peer
,
7754 int *first
, const char *header
,
7755 json_object
*json_adv_to
)
7757 char buf1
[INET6_ADDRSTRLEN
];
7758 json_object
*json_peer
= NULL
;
7761 /* 'advertised-to' is a dictionary of peers we have advertised
7763 * prefix too. The key is the peer's IP or swpX, the value is
7765 * hostname if we know it and "" if not.
7767 json_peer
= json_object_new_object();
7770 json_object_string_add(json_peer
, "hostname",
7774 json_object_object_add(json_adv_to
, peer
->conf_if
,
7777 json_object_object_add(
7779 sockunion2str(&peer
->su
, buf1
, SU_ADDRSTRLEN
),
7783 vty_out(vty
, "%s", header
);
7788 && bgp_flag_check(peer
->bgp
, BGP_FLAG_SHOW_HOSTNAME
)) {
7790 vty_out(vty
, " %s(%s)", peer
->hostname
,
7793 vty_out(vty
, " %s(%s)", peer
->hostname
,
7794 sockunion2str(&peer
->su
, buf1
,
7798 vty_out(vty
, " %s", peer
->conf_if
);
7801 sockunion2str(&peer
->su
, buf1
,
7807 static void route_vty_out_tx_ids(struct vty
*vty
,
7808 struct bgp_addpath_info_data
*d
)
7812 for (i
= 0; i
< BGP_ADDPATH_MAX
; i
++) {
7813 vty_out(vty
, "TX-%s %u%s", bgp_addpath_names(i
)->human_name
,
7814 d
->addpath_tx_id
[i
],
7815 i
< BGP_ADDPATH_MAX
- 1 ? " " : "\n");
7819 void route_vty_out_detail(struct vty
*vty
, struct bgp
*bgp
, struct prefix
*p
,
7820 struct bgp_path_info
*path
, afi_t afi
, safi_t safi
,
7821 json_object
*json_paths
)
7823 char buf
[INET6_ADDRSTRLEN
];
7825 char buf2
[EVPN_ROUTE_STRLEN
];
7827 int sockunion_vty_out(struct vty
*, union sockunion
*);
7829 json_object
*json_bestpath
= NULL
;
7830 json_object
*json_cluster_list
= NULL
;
7831 json_object
*json_cluster_list_list
= NULL
;
7832 json_object
*json_ext_community
= NULL
;
7833 json_object
*json_last_update
= NULL
;
7834 json_object
*json_pmsi
= NULL
;
7835 json_object
*json_nexthop_global
= NULL
;
7836 json_object
*json_nexthop_ll
= NULL
;
7837 json_object
*json_nexthops
= NULL
;
7838 json_object
*json_path
= NULL
;
7839 json_object
*json_peer
= NULL
;
7840 json_object
*json_string
= NULL
;
7841 json_object
*json_adv_to
= NULL
;
7843 struct listnode
*node
, *nnode
;
7845 int addpath_capable
;
7847 unsigned int first_as
;
7849 CHECK_FLAG(path
->flags
, BGP_PATH_ANNC_NH_SELF
) ? true : false;
7853 json_path
= json_object_new_object();
7854 json_peer
= json_object_new_object();
7855 json_nexthop_global
= json_object_new_object();
7858 if (!json_paths
&& safi
== SAFI_EVPN
) {
7861 bgp_evpn_route2str((struct prefix_evpn
*)p
, buf2
, sizeof(buf2
));
7862 vty_out(vty
, " Route %s", buf2
);
7864 if (path
->extra
&& path
->extra
->num_labels
) {
7865 bgp_evpn_label2str(path
->extra
->label
,
7866 path
->extra
->num_labels
, tag_buf
,
7868 vty_out(vty
, " VNI %s", tag_buf
);
7871 if (path
->extra
&& path
->extra
->parent
) {
7872 struct bgp_path_info
*parent_ri
;
7873 struct bgp_node
*rn
, *prn
;
7875 parent_ri
= (struct bgp_path_info
*)path
->extra
->parent
;
7876 rn
= parent_ri
->net
;
7877 if (rn
&& rn
->prn
) {
7879 vty_out(vty
, " Imported from %s:%s\n",
7881 (struct prefix_rd
*)&prn
->p
,
7882 buf1
, sizeof(buf1
)),
7891 /* Line1 display AS-path, Aggregator */
7894 if (!attr
->aspath
->json
)
7895 aspath_str_update(attr
->aspath
, true);
7896 json_object_lock(attr
->aspath
->json
);
7897 json_object_object_add(json_path
, "aspath",
7898 attr
->aspath
->json
);
7900 if (attr
->aspath
->segments
)
7901 aspath_print_vty(vty
, " %s",
7904 vty_out(vty
, " Local");
7908 if (CHECK_FLAG(path
->flags
, BGP_PATH_REMOVED
)) {
7910 json_object_boolean_true_add(json_path
,
7913 vty_out(vty
, ", (removed)");
7916 if (CHECK_FLAG(path
->flags
, BGP_PATH_STALE
)) {
7918 json_object_boolean_true_add(json_path
,
7921 vty_out(vty
, ", (stale)");
7924 if (CHECK_FLAG(attr
->flag
,
7925 ATTR_FLAG_BIT(BGP_ATTR_AGGREGATOR
))) {
7927 json_object_int_add(json_path
, "aggregatorAs",
7928 attr
->aggregator_as
);
7929 json_object_string_add(
7930 json_path
, "aggregatorId",
7931 inet_ntoa(attr
->aggregator_addr
));
7933 vty_out(vty
, ", (aggregated by %u %s)",
7934 attr
->aggregator_as
,
7935 inet_ntoa(attr
->aggregator_addr
));
7939 if (CHECK_FLAG(path
->peer
->af_flags
[afi
][safi
],
7940 PEER_FLAG_REFLECTOR_CLIENT
)) {
7942 json_object_boolean_true_add(
7943 json_path
, "rxedFromRrClient");
7945 vty_out(vty
, ", (Received from a RR-client)");
7948 if (CHECK_FLAG(path
->peer
->af_flags
[afi
][safi
],
7949 PEER_FLAG_RSERVER_CLIENT
)) {
7951 json_object_boolean_true_add(
7952 json_path
, "rxedFromRsClient");
7954 vty_out(vty
, ", (Received from a RS-client)");
7957 if (CHECK_FLAG(path
->flags
, BGP_PATH_HISTORY
)) {
7959 json_object_boolean_true_add(
7960 json_path
, "dampeningHistoryEntry");
7962 vty_out(vty
, ", (history entry)");
7963 } else if (CHECK_FLAG(path
->flags
, BGP_PATH_DAMPED
)) {
7965 json_object_boolean_true_add(
7966 json_path
, "dampeningSuppressed");
7968 vty_out(vty
, ", (suppressed due to dampening)");
7974 /* Line2 display Next-hop, Neighbor, Router-id */
7975 /* Display the nexthop */
7976 if ((p
->family
== AF_INET
|| p
->family
== AF_ETHERNET
7977 || p
->family
== AF_EVPN
)
7978 && (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
7979 || safi
== SAFI_EVPN
7980 || !BGP_ATTR_NEXTHOP_AFI_IP6(attr
))) {
7981 if (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
7982 || safi
== SAFI_EVPN
) {
7984 json_object_string_add(
7985 json_nexthop_global
, "ip",
7987 attr
->mp_nexthop_global_in
));
7991 attr
->mp_nexthop_global_in
));
7994 json_object_string_add(
7995 json_nexthop_global
, "ip",
7996 inet_ntoa(attr
->nexthop
));
7999 inet_ntoa(attr
->nexthop
));
8003 json_object_string_add(json_nexthop_global
,
8007 json_object_string_add(
8008 json_nexthop_global
, "ip",
8010 &attr
->mp_nexthop_global
, buf
,
8012 json_object_string_add(json_nexthop_global
,
8014 json_object_string_add(json_nexthop_global
,
8019 &attr
->mp_nexthop_global
, buf
,
8024 /* Display the IGP cost or 'inaccessible' */
8025 if (!CHECK_FLAG(path
->flags
, BGP_PATH_VALID
)) {
8027 json_object_boolean_false_add(
8028 json_nexthop_global
, "accessible");
8030 vty_out(vty
, " (inaccessible)");
8032 if (path
->extra
&& path
->extra
->igpmetric
) {
8034 json_object_int_add(
8035 json_nexthop_global
, "metric",
8036 path
->extra
->igpmetric
);
8038 vty_out(vty
, " (metric %u)",
8039 path
->extra
->igpmetric
);
8042 /* IGP cost is 0, display this only for json */
8045 json_object_int_add(json_nexthop_global
,
8050 json_object_boolean_true_add(
8051 json_nexthop_global
, "accessible");
8054 /* Display peer "from" output */
8055 /* This path was originated locally */
8056 if (path
->peer
== bgp
->peer_self
) {
8058 if (safi
== SAFI_EVPN
8059 || (p
->family
== AF_INET
8060 && !BGP_ATTR_NEXTHOP_AFI_IP6(attr
))) {
8062 json_object_string_add(
8063 json_peer
, "peerId", "0.0.0.0");
8065 vty_out(vty
, " from 0.0.0.0 ");
8068 json_object_string_add(json_peer
,
8071 vty_out(vty
, " from :: ");
8075 json_object_string_add(
8076 json_peer
, "routerId",
8077 inet_ntoa(bgp
->router_id
));
8079 vty_out(vty
, "(%s)", inet_ntoa(bgp
->router_id
));
8082 /* We RXed this path from one of our peers */
8086 json_object_string_add(
8087 json_peer
, "peerId",
8088 sockunion2str(&path
->peer
->su
, buf
,
8090 json_object_string_add(
8091 json_peer
, "routerId",
8093 &path
->peer
->remote_id
, buf1
,
8096 if (path
->peer
->hostname
)
8097 json_object_string_add(
8098 json_peer
, "hostname",
8099 path
->peer
->hostname
);
8101 if (path
->peer
->domainname
)
8102 json_object_string_add(
8103 json_peer
, "domainname",
8104 path
->peer
->domainname
);
8106 if (path
->peer
->conf_if
)
8107 json_object_string_add(
8108 json_peer
, "interface",
8109 path
->peer
->conf_if
);
8111 if (path
->peer
->conf_if
) {
8112 if (path
->peer
->hostname
8115 BGP_FLAG_SHOW_HOSTNAME
))
8116 vty_out(vty
, " from %s(%s)",
8117 path
->peer
->hostname
,
8118 path
->peer
->conf_if
);
8120 vty_out(vty
, " from %s",
8121 path
->peer
->conf_if
);
8123 if (path
->peer
->hostname
8126 BGP_FLAG_SHOW_HOSTNAME
))
8127 vty_out(vty
, " from %s(%s)",
8128 path
->peer
->hostname
,
8131 vty_out(vty
, " from %s",
8139 & ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID
))
8140 vty_out(vty
, " (%s)",
8141 inet_ntoa(attr
->originator_id
));
8143 vty_out(vty
, " (%s)",
8146 &path
->peer
->remote_id
,
8147 buf1
, sizeof(buf1
)));
8152 * Note when vrfid of nexthop is different from that of prefix
8154 if (path
->extra
&& path
->extra
->bgp_orig
) {
8155 vrf_id_t nexthop_vrfid
= path
->extra
->bgp_orig
->vrf_id
;
8160 if (path
->extra
->bgp_orig
->inst_type
8161 == BGP_INSTANCE_TYPE_DEFAULT
)
8163 vn
= VRF_DEFAULT_NAME
;
8165 vn
= path
->extra
->bgp_orig
->name
;
8167 json_object_string_add(json_path
, "nhVrfName",
8170 if (nexthop_vrfid
== VRF_UNKNOWN
) {
8171 json_object_int_add(json_path
,
8174 json_object_int_add(json_path
,
8175 "nhVrfId", (int)nexthop_vrfid
);
8178 if (nexthop_vrfid
== VRF_UNKNOWN
)
8179 vty_out(vty
, " vrf ?");
8181 vty_out(vty
, " vrf %u", nexthop_vrfid
);
8187 json_object_boolean_true_add(json_path
,
8188 "announceNexthopSelf");
8190 vty_out(vty
, " announce-nh-self");
8197 /* display the link-local nexthop */
8198 if (attr
->mp_nexthop_len
== BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL
) {
8200 json_nexthop_ll
= json_object_new_object();
8201 json_object_string_add(
8202 json_nexthop_ll
, "ip",
8204 &attr
->mp_nexthop_local
, buf
,
8206 json_object_string_add(json_nexthop_ll
, "afi",
8208 json_object_string_add(json_nexthop_ll
, "scope",
8211 json_object_boolean_true_add(json_nexthop_ll
,
8214 if (!attr
->mp_nexthop_prefer_global
)
8215 json_object_boolean_true_add(
8216 json_nexthop_ll
, "used");
8218 json_object_boolean_true_add(
8219 json_nexthop_global
, "used");
8221 vty_out(vty
, " (%s) %s\n",
8223 &attr
->mp_nexthop_local
, buf
,
8225 attr
->mp_nexthop_prefer_global
8230 /* If we do not have a link-local nexthop then we must flag the
8234 json_object_boolean_true_add(
8235 json_nexthop_global
, "used");
8238 /* Line 3 display Origin, Med, Locpref, Weight, Tag, valid,
8239 * Int/Ext/Local, Atomic, best */
8241 json_object_string_add(
8242 json_path
, "origin",
8243 bgp_origin_long_str
[attr
->origin
]);
8245 vty_out(vty
, " Origin %s",
8246 bgp_origin_long_str
[attr
->origin
]);
8248 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_MULTI_EXIT_DISC
)) {
8252 * Adding "metric" field to match with
8253 * corresponding CLI. "med" will be
8254 * deprecated in future.
8256 json_object_int_add(json_path
, "med",
8258 json_object_int_add(json_path
, "metric",
8261 vty_out(vty
, ", metric %u", attr
->med
);
8264 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF
)) {
8266 json_object_int_add(json_path
, "localpref",
8269 vty_out(vty
, ", localpref %u",
8273 if (attr
->weight
!= 0) {
8275 json_object_int_add(json_path
, "weight",
8278 vty_out(vty
, ", weight %u", attr
->weight
);
8281 if (attr
->tag
!= 0) {
8283 json_object_int_add(json_path
, "tag",
8286 vty_out(vty
, ", tag %" ROUTE_TAG_PRI
,
8290 if (!CHECK_FLAG(path
->flags
, BGP_PATH_VALID
)) {
8292 json_object_boolean_false_add(json_path
,
8295 vty_out(vty
, ", invalid");
8296 } else if (!CHECK_FLAG(path
->flags
, BGP_PATH_HISTORY
)) {
8298 json_object_boolean_true_add(json_path
,
8301 vty_out(vty
, ", valid");
8304 if (path
->peer
!= bgp
->peer_self
) {
8305 if (path
->peer
->as
== path
->peer
->local_as
) {
8306 if (CHECK_FLAG(bgp
->config
,
8307 BGP_CONFIG_CONFEDERATION
)) {
8309 json_object_string_add(
8314 ", confed-internal");
8317 json_object_string_add(
8321 vty_out(vty
, ", internal");
8324 if (bgp_confederation_peers_check(
8325 bgp
, path
->peer
->as
)) {
8327 json_object_string_add(
8332 ", confed-external");
8335 json_object_string_add(
8339 vty_out(vty
, ", external");
8342 } else if (path
->sub_type
== BGP_ROUTE_AGGREGATE
) {
8344 json_object_boolean_true_add(json_path
,
8346 json_object_boolean_true_add(json_path
,
8349 vty_out(vty
, ", aggregated, local");
8351 } else if (path
->type
!= ZEBRA_ROUTE_BGP
) {
8353 json_object_boolean_true_add(json_path
,
8356 vty_out(vty
, ", sourced");
8359 json_object_boolean_true_add(json_path
,
8361 json_object_boolean_true_add(json_path
,
8364 vty_out(vty
, ", sourced, local");
8368 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_ATOMIC_AGGREGATE
)) {
8370 json_object_boolean_true_add(json_path
,
8373 vty_out(vty
, ", atomic-aggregate");
8376 if (CHECK_FLAG(path
->flags
, BGP_PATH_MULTIPATH
)
8377 || (CHECK_FLAG(path
->flags
, BGP_PATH_SELECTED
)
8378 && bgp_path_info_mpath_count(path
))) {
8380 json_object_boolean_true_add(json_path
,
8383 vty_out(vty
, ", multipath");
8386 // Mark the bestpath(s)
8387 if (CHECK_FLAG(path
->flags
, BGP_PATH_DMED_SELECTED
)) {
8388 first_as
= aspath_get_first_as(attr
->aspath
);
8393 json_object_new_object();
8394 json_object_int_add(json_bestpath
,
8395 "bestpathFromAs", first_as
);
8398 vty_out(vty
, ", bestpath-from-AS %u",
8402 ", bestpath-from-AS Local");
8406 if (CHECK_FLAG(path
->flags
, BGP_PATH_SELECTED
)) {
8410 json_object_new_object();
8411 json_object_boolean_true_add(json_bestpath
,
8414 vty_out(vty
, ", best");
8418 json_object_object_add(json_path
, "bestpath",
8424 /* Line 4 display Community */
8425 if (attr
->community
) {
8427 if (!attr
->community
->json
)
8428 community_str(attr
->community
, true);
8429 json_object_lock(attr
->community
->json
);
8430 json_object_object_add(json_path
, "community",
8431 attr
->community
->json
);
8433 vty_out(vty
, " Community: %s\n",
8434 attr
->community
->str
);
8438 /* Line 5 display Extended-community */
8439 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_EXT_COMMUNITIES
)) {
8441 json_ext_community
= json_object_new_object();
8442 json_object_string_add(json_ext_community
,
8444 attr
->ecommunity
->str
);
8445 json_object_object_add(json_path
,
8446 "extendedCommunity",
8447 json_ext_community
);
8449 vty_out(vty
, " Extended Community: %s\n",
8450 attr
->ecommunity
->str
);
8454 /* Line 6 display Large community */
8455 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_LARGE_COMMUNITIES
)) {
8457 if (!attr
->lcommunity
->json
)
8458 lcommunity_str(attr
->lcommunity
, true);
8459 json_object_lock(attr
->lcommunity
->json
);
8460 json_object_object_add(json_path
,
8462 attr
->lcommunity
->json
);
8464 vty_out(vty
, " Large Community: %s\n",
8465 attr
->lcommunity
->str
);
8469 /* Line 7 display Originator, Cluster-id */
8470 if ((attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID
))
8471 || (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_CLUSTER_LIST
))) {
8473 & ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID
)) {
8475 json_object_string_add(
8476 json_path
, "originatorId",
8477 inet_ntoa(attr
->originator_id
));
8479 vty_out(vty
, " Originator: %s",
8480 inet_ntoa(attr
->originator_id
));
8483 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_CLUSTER_LIST
)) {
8488 json_object_new_object();
8489 json_cluster_list_list
=
8490 json_object_new_array();
8493 i
< attr
->cluster
->length
/ 4;
8495 json_string
= json_object_new_string(
8499 json_object_array_add(
8500 json_cluster_list_list
,
8504 /* struct cluster_list does not have
8506 * aspath and community do. Add this
8509 json_object_string_add(json_cluster_list,
8510 "string", attr->cluster->str);
8512 json_object_object_add(
8513 json_cluster_list
, "list",
8514 json_cluster_list_list
);
8515 json_object_object_add(
8516 json_path
, "clusterList",
8519 vty_out(vty
, ", Cluster list: ");
8522 i
< attr
->cluster
->length
/ 4;
8536 if (path
->extra
&& path
->extra
->damp_info
)
8537 bgp_damp_info_vty(vty
, path
, json_path
);
8540 if (path
->extra
&& bgp_is_valid_label(&path
->extra
->label
[0])
8541 && safi
!= SAFI_EVPN
) {
8542 mpls_label_t label
= label_pton(&path
->extra
->label
[0]);
8545 json_object_int_add(json_path
, "remoteLabel",
8548 vty_out(vty
, " Remote label: %d\n", label
);
8552 if (attr
->label_index
!= BGP_INVALID_LABEL_INDEX
) {
8554 json_object_int_add(json_path
, "labelIndex",
8557 vty_out(vty
, " Label Index: %d\n",
8561 /* Line 8 display Addpath IDs */
8562 if (path
->addpath_rx_id
8563 || bgp_addpath_info_has_ids(&path
->tx_addpath
)) {
8565 json_object_int_add(json_path
, "addpathRxId",
8566 path
->addpath_rx_id
);
8568 /* Keep backwards compatibility with the old API
8569 * by putting TX All's ID in the old field
8571 json_object_int_add(
8572 json_path
, "addpathTxId",
8573 path
->tx_addpath
.addpath_tx_id
8576 /* ... but create a specific field for each
8579 for (i
= 0; i
< BGP_ADDPATH_MAX
; i
++) {
8580 json_object_int_add(
8582 bgp_addpath_names(i
)
8588 vty_out(vty
, " AddPath ID: RX %u, ",
8589 path
->addpath_rx_id
);
8591 route_vty_out_tx_ids(vty
, &path
->tx_addpath
);
8595 /* If we used addpath to TX a non-bestpath we need to display
8596 * "Advertised to" on a path-by-path basis
8598 if (bgp_addpath_is_addpath_used(&bgp
->tx_addpath
, afi
, safi
)) {
8601 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
8603 bgp_addpath_encode_tx(peer
, afi
, safi
);
8604 has_adj
= bgp_adj_out_lookup(
8606 bgp_addpath_id_for_peer(
8608 &path
->tx_addpath
));
8610 if ((addpath_capable
&& has_adj
)
8611 || (!addpath_capable
&& has_adj
8612 && CHECK_FLAG(path
->flags
,
8613 BGP_PATH_SELECTED
))) {
8614 if (json_path
&& !json_adv_to
)
8616 json_object_new_object();
8618 route_vty_out_advertised_to(
8627 json_object_object_add(json_path
,
8638 /* Line 9 display Uptime */
8639 tbuf
= time(NULL
) - (bgp_clock() - path
->uptime
);
8641 json_last_update
= json_object_new_object();
8642 json_object_int_add(json_last_update
, "epoch", tbuf
);
8643 json_object_string_add(json_last_update
, "string",
8645 json_object_object_add(json_path
, "lastUpdate",
8648 vty_out(vty
, " Last update: %s", ctime(&tbuf
));
8650 /* Line 10 display PMSI tunnel attribute, if present */
8651 if (attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_PMSI_TUNNEL
)) {
8652 const char *str
= lookup_msg(bgp_pmsi_tnltype_str
,
8653 attr
->pmsi_tnl_type
,
8654 PMSI_TNLTYPE_STR_DEFAULT
);
8657 json_pmsi
= json_object_new_object();
8658 json_object_string_add(json_pmsi
,
8660 json_object_int_add(json_pmsi
,
8662 label2vni(&attr
->label
));
8663 json_object_object_add(json_path
, "pmsi",
8667 " PMSI Tunnel Type: %s, label: %d\n",
8668 str
, label2vni(&attr
->label
));
8673 /* We've constructed the json object for this path, add it to the json
8677 if (json_nexthop_global
|| json_nexthop_ll
) {
8678 json_nexthops
= json_object_new_array();
8680 if (json_nexthop_global
)
8681 json_object_array_add(json_nexthops
,
8682 json_nexthop_global
);
8684 if (json_nexthop_ll
)
8685 json_object_array_add(json_nexthops
,
8688 json_object_object_add(json_path
, "nexthops",
8692 json_object_object_add(json_path
, "peer", json_peer
);
8693 json_object_array_add(json_paths
, json_path
);
8698 #define BGP_SHOW_HEADER_CSV "Flags, Network, Next Hop, Metric, LocPrf, Weight, Path"
8699 #define BGP_SHOW_DAMP_HEADER " Network From Reuse Path\n"
8700 #define BGP_SHOW_FLAP_HEADER " Network From Flaps Duration Reuse Path\n"
8702 static int bgp_show_prefix_list(struct vty
*vty
, struct bgp
*bgp
,
8703 const char *prefix_list_str
, afi_t afi
,
8704 safi_t safi
, enum bgp_show_type type
);
8705 static int bgp_show_filter_list(struct vty
*vty
, struct bgp
*bgp
,
8706 const char *filter
, afi_t afi
, safi_t safi
,
8707 enum bgp_show_type type
);
8708 static int bgp_show_route_map(struct vty
*vty
, struct bgp
*bgp
,
8709 const char *rmap_str
, afi_t afi
, safi_t safi
,
8710 enum bgp_show_type type
);
8711 static int bgp_show_community_list(struct vty
*vty
, struct bgp
*bgp
,
8712 const char *com
, int exact
, afi_t afi
,
8714 static int bgp_show_prefix_longer(struct vty
*vty
, struct bgp
*bgp
,
8715 const char *prefix
, afi_t afi
, safi_t safi
,
8716 enum bgp_show_type type
);
8717 static int bgp_show_regexp(struct vty
*vty
, struct bgp
*bgp
, const char *regstr
,
8718 afi_t afi
, safi_t safi
, enum bgp_show_type type
);
8719 static int bgp_show_community(struct vty
*vty
, struct bgp
*bgp
,
8720 const char *comstr
, int exact
, afi_t afi
,
8721 safi_t safi
, bool use_json
);
8724 static int bgp_show_table(struct vty
*vty
, struct bgp
*bgp
, safi_t safi
,
8725 struct bgp_table
*table
, enum bgp_show_type type
,
8726 void *output_arg
, bool use_json
, char *rd
,
8727 int is_last
, unsigned long *output_cum
,
8728 unsigned long *total_cum
,
8729 unsigned long *json_header_depth
)
8731 struct bgp_path_info
*pi
;
8732 struct bgp_node
*rn
;
8735 unsigned long output_count
= 0;
8736 unsigned long total_count
= 0;
8739 json_object
*json_paths
= NULL
;
8742 if (output_cum
&& *output_cum
!= 0)
8745 if (use_json
&& !*json_header_depth
) {
8747 "{\n \"vrfId\": %d,\n \"vrfName\": \"%s\",\n \"tableVersion\": %" PRId64
8748 ",\n \"routerId\": \"%s\",\n \"defaultLocPrf\": %u,\n"
8749 " \"localAS\": %u,\n \"routes\": { ",
8750 bgp
->vrf_id
== VRF_UNKNOWN
? -1 : (int)bgp
->vrf_id
,
8751 bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
8754 table
->version
, inet_ntoa(bgp
->router_id
),
8755 bgp
->default_local_pref
, bgp
->as
);
8756 *json_header_depth
= 2;
8758 vty_out(vty
, " \"routeDistinguishers\" : {");
8759 ++*json_header_depth
;
8763 if (use_json
&& rd
) {
8764 vty_out(vty
, " \"%s\" : { ", rd
);
8767 /* Start processing of routes. */
8768 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
)) {
8769 pi
= bgp_node_get_bgp_path_info(rn
);
8775 json_paths
= json_object_new_array();
8779 for (; pi
; pi
= pi
->next
) {
8781 if (type
== bgp_show_type_flap_statistics
8782 || type
== bgp_show_type_flap_neighbor
8783 || type
== bgp_show_type_dampend_paths
8784 || type
== bgp_show_type_damp_neighbor
) {
8785 if (!(pi
->extra
&& pi
->extra
->damp_info
))
8788 if (type
== bgp_show_type_regexp
) {
8789 regex_t
*regex
= output_arg
;
8791 if (bgp_regexec(regex
, pi
->attr
->aspath
)
8795 if (type
== bgp_show_type_prefix_list
) {
8796 struct prefix_list
*plist
= output_arg
;
8798 if (prefix_list_apply(plist
, &rn
->p
)
8802 if (type
== bgp_show_type_filter_list
) {
8803 struct as_list
*as_list
= output_arg
;
8805 if (as_list_apply(as_list
, pi
->attr
->aspath
)
8806 != AS_FILTER_PERMIT
)
8809 if (type
== bgp_show_type_route_map
) {
8810 struct route_map
*rmap
= output_arg
;
8811 struct bgp_path_info path
;
8812 struct attr dummy_attr
;
8815 bgp_attr_dup(&dummy_attr
, pi
->attr
);
8817 path
.peer
= pi
->peer
;
8818 path
.attr
= &dummy_attr
;
8820 ret
= route_map_apply(rmap
, &rn
->p
, RMAP_BGP
,
8822 if (ret
== RMAP_DENYMATCH
)
8825 if (type
== bgp_show_type_neighbor
8826 || type
== bgp_show_type_flap_neighbor
8827 || type
== bgp_show_type_damp_neighbor
) {
8828 union sockunion
*su
= output_arg
;
8830 if (pi
->peer
== NULL
8831 || pi
->peer
->su_remote
== NULL
8832 || !sockunion_same(pi
->peer
->su_remote
, su
))
8835 if (type
== bgp_show_type_cidr_only
) {
8836 uint32_t destination
;
8838 destination
= ntohl(rn
->p
.u
.prefix4
.s_addr
);
8839 if (IN_CLASSC(destination
)
8840 && rn
->p
.prefixlen
== 24)
8842 if (IN_CLASSB(destination
)
8843 && rn
->p
.prefixlen
== 16)
8845 if (IN_CLASSA(destination
)
8846 && rn
->p
.prefixlen
== 8)
8849 if (type
== bgp_show_type_prefix_longer
) {
8851 if (!prefix_match(p
, &rn
->p
))
8854 if (type
== bgp_show_type_community_all
) {
8855 if (!pi
->attr
->community
)
8858 if (type
== bgp_show_type_community
) {
8859 struct community
*com
= output_arg
;
8861 if (!pi
->attr
->community
8862 || !community_match(pi
->attr
->community
,
8866 if (type
== bgp_show_type_community_exact
) {
8867 struct community
*com
= output_arg
;
8869 if (!pi
->attr
->community
8870 || !community_cmp(pi
->attr
->community
, com
))
8873 if (type
== bgp_show_type_community_list
) {
8874 struct community_list
*list
= output_arg
;
8876 if (!community_list_match(pi
->attr
->community
,
8880 if (type
== bgp_show_type_community_list_exact
) {
8881 struct community_list
*list
= output_arg
;
8883 if (!community_list_exact_match(
8884 pi
->attr
->community
, list
))
8887 if (type
== bgp_show_type_lcommunity
) {
8888 struct lcommunity
*lcom
= output_arg
;
8890 if (!pi
->attr
->lcommunity
8891 || !lcommunity_match(pi
->attr
->lcommunity
,
8895 if (type
== bgp_show_type_lcommunity_list
) {
8896 struct community_list
*list
= output_arg
;
8898 if (!lcommunity_list_match(pi
->attr
->lcommunity
,
8902 if (type
== bgp_show_type_lcommunity_all
) {
8903 if (!pi
->attr
->lcommunity
)
8906 if (type
== bgp_show_type_dampend_paths
8907 || type
== bgp_show_type_damp_neighbor
) {
8908 if (!CHECK_FLAG(pi
->flags
, BGP_PATH_DAMPED
)
8909 || CHECK_FLAG(pi
->flags
, BGP_PATH_HISTORY
))
8913 if (!use_json
&& header
) {
8914 vty_out(vty
, "BGP table version is %" PRIu64
8915 ", local router ID is %s, vrf id ",
8917 inet_ntoa(bgp
->router_id
));
8918 if (bgp
->vrf_id
== VRF_UNKNOWN
)
8919 vty_out(vty
, "%s", VRFID_NONE_STR
);
8921 vty_out(vty
, "%u", bgp
->vrf_id
);
8923 vty_out(vty
, "Default local pref %u, ",
8924 bgp
->default_local_pref
);
8925 vty_out(vty
, "local AS %u\n", bgp
->as
);
8926 vty_out(vty
, BGP_SHOW_SCODE_HEADER
);
8927 vty_out(vty
, BGP_SHOW_NCODE_HEADER
);
8928 vty_out(vty
, BGP_SHOW_OCODE_HEADER
);
8929 if (type
== bgp_show_type_dampend_paths
8930 || type
== bgp_show_type_damp_neighbor
)
8931 vty_out(vty
, BGP_SHOW_DAMP_HEADER
);
8932 else if (type
== bgp_show_type_flap_statistics
8933 || type
== bgp_show_type_flap_neighbor
)
8934 vty_out(vty
, BGP_SHOW_FLAP_HEADER
);
8936 vty_out(vty
, BGP_SHOW_HEADER
);
8939 if (rd
!= NULL
&& !display
&& !output_count
) {
8942 "Route Distinguisher: %s\n",
8945 if (type
== bgp_show_type_dampend_paths
8946 || type
== bgp_show_type_damp_neighbor
)
8947 damp_route_vty_out(vty
, &rn
->p
, pi
, display
,
8948 safi
, use_json
, json_paths
);
8949 else if (type
== bgp_show_type_flap_statistics
8950 || type
== bgp_show_type_flap_neighbor
)
8951 flap_route_vty_out(vty
, &rn
->p
, pi
, display
,
8952 safi
, use_json
, json_paths
);
8954 route_vty_out(vty
, &rn
->p
, pi
, display
, safi
,
8966 if (p
->family
== AF_FLOWSPEC
) {
8967 char retstr
[BGP_FLOWSPEC_STRING_DISPLAY_MAX
];
8969 bgp_fs_nlri_get_string((unsigned char *)
8970 p
->u
.prefix_flowspec
.ptr
,
8971 p
->u
.prefix_flowspec
8974 NLRI_STRING_FORMAT_MIN
,
8977 vty_out(vty
, "\"%s/%d\": ",
8979 p
->u
.prefix_flowspec
.prefixlen
);
8981 vty_out(vty
, ",\"%s/%d\": ",
8983 p
->u
.prefix_flowspec
.prefixlen
);
8985 prefix2str(p
, buf2
, sizeof(buf2
));
8987 vty_out(vty
, "\"%s\": ", buf2
);
8989 vty_out(vty
, ",\"%s\": ", buf2
);
8992 json_object_to_json_string(json_paths
));
8993 json_object_free(json_paths
);
9000 output_count
+= *output_cum
;
9001 *output_cum
= output_count
;
9004 total_count
+= *total_cum
;
9005 *total_cum
= total_count
;
9009 vty_out(vty
, " }%s ", (is_last
? "" : ","));
9013 for (i
= 0; i
< *json_header_depth
; ++i
)
9014 vty_out(vty
, " } ");
9019 /* No route is displayed */
9020 if (output_count
== 0) {
9021 if (type
== bgp_show_type_normal
)
9023 "No BGP prefixes displayed, %ld exist\n",
9027 "\nDisplayed %ld routes and %ld total paths\n",
9028 output_count
, total_count
);
9035 int bgp_show_table_rd(struct vty
*vty
, struct bgp
*bgp
, safi_t safi
,
9036 struct bgp_table
*table
, struct prefix_rd
*prd_match
,
9037 enum bgp_show_type type
, void *output_arg
, bool use_json
)
9039 struct bgp_node
*rn
, *next
;
9040 unsigned long output_cum
= 0;
9041 unsigned long total_cum
= 0;
9042 unsigned long json_header_depth
= 0;
9043 struct bgp_table
*itable
;
9046 show_msg
= (!use_json
&& type
== bgp_show_type_normal
);
9048 for (rn
= bgp_table_top(table
); rn
; rn
= next
) {
9049 next
= bgp_route_next(rn
);
9050 if (prd_match
&& memcmp(rn
->p
.u
.val
, prd_match
->val
, 8) != 0)
9053 itable
= bgp_node_get_bgp_table_info(rn
);
9054 if (itable
!= NULL
) {
9055 struct prefix_rd prd
;
9056 char rd
[RD_ADDRSTRLEN
];
9058 memcpy(&prd
, &(rn
->p
), sizeof(struct prefix_rd
));
9059 prefix_rd2str(&prd
, rd
, sizeof(rd
));
9060 bgp_show_table(vty
, bgp
, safi
, itable
, type
, output_arg
,
9061 use_json
, rd
, next
== NULL
, &output_cum
,
9062 &total_cum
, &json_header_depth
);
9068 if (output_cum
== 0)
9069 vty_out(vty
, "No BGP prefixes displayed, %ld exist\n",
9073 "\nDisplayed %ld routes and %ld total paths\n",
9074 output_cum
, total_cum
);
9078 static int bgp_show(struct vty
*vty
, struct bgp
*bgp
, afi_t afi
, safi_t safi
,
9079 enum bgp_show_type type
, void *output_arg
, bool use_json
)
9081 struct bgp_table
*table
;
9082 unsigned long json_header_depth
= 0;
9085 bgp
= bgp_get_default();
9090 vty_out(vty
, "No BGP process is configured\n");
9092 vty_out(vty
, "{}\n");
9096 table
= bgp
->rib
[afi
][safi
];
9097 /* use MPLS and ENCAP specific shows until they are merged */
9098 if (safi
== SAFI_MPLS_VPN
) {
9099 return bgp_show_table_rd(vty
, bgp
, safi
, table
, NULL
, type
,
9100 output_arg
, use_json
);
9103 if (safi
== SAFI_FLOWSPEC
&& type
== bgp_show_type_detail
) {
9104 return bgp_show_table_flowspec(vty
, bgp
, afi
, table
, type
,
9105 output_arg
, use_json
,
9108 /* labeled-unicast routes live in the unicast table */
9109 else if (safi
== SAFI_LABELED_UNICAST
)
9110 safi
= SAFI_UNICAST
;
9112 return bgp_show_table(vty
, bgp
, safi
, table
, type
, output_arg
, use_json
,
9113 NULL
, 1, NULL
, NULL
, &json_header_depth
);
9116 static void bgp_show_all_instances_routes_vty(struct vty
*vty
, afi_t afi
,
9117 safi_t safi
, bool use_json
)
9119 struct listnode
*node
, *nnode
;
9122 bool route_output
= false;
9125 vty_out(vty
, "{\n");
9127 for (ALL_LIST_ELEMENTS(bm
->bgp
, node
, nnode
, bgp
)) {
9128 route_output
= true;
9131 vty_out(vty
, ",\n");
9135 vty_out(vty
, "\"%s\":",
9136 (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)
9140 vty_out(vty
, "\nInstance %s:\n",
9141 (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)
9145 bgp_show(vty
, bgp
, afi
, safi
, bgp_show_type_normal
, NULL
,
9150 vty_out(vty
, "}\n");
9151 else if (!route_output
)
9152 vty_out(vty
, "%% BGP instance not found\n");
9155 /* Header of detailed BGP route information */
9156 void route_vty_out_detail_header(struct vty
*vty
, struct bgp
*bgp
,
9157 struct bgp_node
*rn
, struct prefix_rd
*prd
,
9158 afi_t afi
, safi_t safi
, json_object
*json
)
9160 struct bgp_path_info
*pi
;
9163 struct listnode
*node
, *nnode
;
9164 char buf1
[RD_ADDRSTRLEN
];
9165 char buf2
[INET6_ADDRSTRLEN
];
9166 char buf3
[EVPN_ROUTE_STRLEN
];
9167 char prefix_str
[BUFSIZ
];
9172 int route_filter_translated_v4
= 0;
9173 int route_filter_v4
= 0;
9174 int route_filter_translated_v6
= 0;
9175 int route_filter_v6
= 0;
9178 int accept_own_nexthop
= 0;
9181 int no_advertise
= 0;
9185 int has_valid_label
= 0;
9186 mpls_label_t label
= 0;
9187 json_object
*json_adv_to
= NULL
;
9190 has_valid_label
= bgp_is_valid_label(&rn
->local_label
);
9192 if (has_valid_label
)
9193 label
= label_pton(&rn
->local_label
);
9196 if (has_valid_label
)
9197 json_object_int_add(json
, "localLabel", label
);
9199 json_object_string_add(
9201 prefix2str(p
, prefix_str
, sizeof(prefix_str
)));
9203 if (safi
== SAFI_EVPN
)
9204 vty_out(vty
, "BGP routing table entry for %s%s%s\n",
9205 prd
? prefix_rd2str(prd
, buf1
, sizeof(buf1
))
9208 bgp_evpn_route2str((struct prefix_evpn
*)p
,
9209 buf3
, sizeof(buf3
)));
9211 vty_out(vty
, "BGP routing table entry for %s%s%s/%d\n",
9212 ((safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
)
9213 ? prefix_rd2str(prd
, buf1
,
9216 safi
== SAFI_MPLS_VPN
? ":" : "",
9217 inet_ntop(p
->family
, &p
->u
.prefix
, buf2
,
9221 if (has_valid_label
)
9222 vty_out(vty
, "Local label: %d\n", label
);
9223 if (bgp_labeled_safi(safi
) && safi
!= SAFI_EVPN
)
9224 vty_out(vty
, "not allocated\n");
9227 for (pi
= bgp_node_get_bgp_path_info(rn
); pi
; pi
= pi
->next
) {
9229 if (CHECK_FLAG(pi
->flags
, BGP_PATH_SELECTED
)) {
9231 if (pi
->extra
&& pi
->extra
->suppress
)
9234 if (pi
->attr
->community
== NULL
)
9237 no_advertise
+= community_include(
9238 pi
->attr
->community
, COMMUNITY_NO_ADVERTISE
);
9239 no_export
+= community_include(pi
->attr
->community
,
9240 COMMUNITY_NO_EXPORT
);
9241 local_as
+= community_include(pi
->attr
->community
,
9242 COMMUNITY_LOCAL_AS
);
9243 accept_own
+= community_include(pi
->attr
->community
,
9244 COMMUNITY_ACCEPT_OWN
);
9245 route_filter_translated_v4
+= community_include(
9246 pi
->attr
->community
,
9247 COMMUNITY_ROUTE_FILTER_TRANSLATED_v4
);
9248 route_filter_translated_v6
+= community_include(
9249 pi
->attr
->community
,
9250 COMMUNITY_ROUTE_FILTER_TRANSLATED_v6
);
9251 route_filter_v4
+= community_include(
9252 pi
->attr
->community
, COMMUNITY_ROUTE_FILTER_v4
);
9253 route_filter_v6
+= community_include(
9254 pi
->attr
->community
, COMMUNITY_ROUTE_FILTER_v6
);
9255 llgr_stale
+= community_include(pi
->attr
->community
,
9256 COMMUNITY_LLGR_STALE
);
9257 no_llgr
+= community_include(pi
->attr
->community
,
9259 accept_own_nexthop
+=
9260 community_include(pi
->attr
->community
,
9261 COMMUNITY_ACCEPT_OWN_NEXTHOP
);
9262 blackhole
+= community_include(pi
->attr
->community
,
9263 COMMUNITY_BLACKHOLE
);
9264 no_peer
+= community_include(pi
->attr
->community
,
9270 vty_out(vty
, "Paths: (%d available", count
);
9272 vty_out(vty
, ", best #%d", best
);
9273 if (safi
== SAFI_UNICAST
)
9274 vty_out(vty
, ", table %s",
9276 == BGP_INSTANCE_TYPE_DEFAULT
)
9280 vty_out(vty
, ", no best path");
9284 ", accept own local route exported and imported in different VRF");
9285 else if (route_filter_translated_v4
)
9287 ", mark translated RTs for VPNv4 route filtering");
9288 else if (route_filter_v4
)
9290 ", attach RT as-is for VPNv4 route filtering");
9291 else if (route_filter_translated_v6
)
9293 ", mark translated RTs for VPNv6 route filtering");
9294 else if (route_filter_v6
)
9296 ", attach RT as-is for VPNv6 route filtering");
9297 else if (llgr_stale
)
9299 ", mark routes to be retained for a longer time. Requeres support for Long-lived BGP Graceful Restart");
9302 ", mark routes to not be treated according to Long-lived BGP Graceful Restart operations");
9303 else if (accept_own_nexthop
)
9305 ", accept local nexthop");
9307 vty_out(vty
, ", inform peer to blackhole prefix");
9309 vty_out(vty
, ", not advertised to EBGP peer");
9310 else if (no_advertise
)
9311 vty_out(vty
, ", not advertised to any peer");
9313 vty_out(vty
, ", not advertised outside local AS");
9316 ", inform EBGP peer not to advertise to their EBGP peers");
9320 ", Advertisements suppressed by an aggregate.");
9321 vty_out(vty
, ")\n");
9324 /* If we are not using addpath then we can display Advertised to and
9326 * show what peers we advertised the bestpath to. If we are using
9328 * though then we must display Advertised to on a path-by-path basis. */
9329 if (!bgp_addpath_is_addpath_used(&bgp
->tx_addpath
, afi
, safi
)) {
9330 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
9331 if (bgp_adj_out_lookup(peer
, rn
, 0)) {
9332 if (json
&& !json_adv_to
)
9333 json_adv_to
= json_object_new_object();
9335 route_vty_out_advertised_to(
9337 " Advertised to non peer-group peers:\n ",
9344 json_object_object_add(json
, "advertisedTo",
9349 vty_out(vty
, " Not advertised to any peer");
9355 /* Display specified route of BGP table. */
9356 static int bgp_show_route_in_table(struct vty
*vty
, struct bgp
*bgp
,
9357 struct bgp_table
*rib
, const char *ip_str
,
9358 afi_t afi
, safi_t safi
,
9359 struct prefix_rd
*prd
, int prefix_check
,
9360 enum bgp_path_type pathtype
, bool use_json
)
9365 struct prefix match
;
9366 struct bgp_node
*rn
;
9367 struct bgp_node
*rm
;
9368 struct bgp_path_info
*pi
;
9369 struct bgp_table
*table
;
9370 json_object
*json
= NULL
;
9371 json_object
*json_paths
= NULL
;
9373 /* Check IP address argument. */
9374 ret
= str2prefix(ip_str
, &match
);
9376 vty_out(vty
, "address is malformed\n");
9380 match
.family
= afi2family(afi
);
9383 json
= json_object_new_object();
9384 json_paths
= json_object_new_array();
9387 if (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
|| safi
== SAFI_EVPN
) {
9388 for (rn
= bgp_table_top(rib
); rn
; rn
= bgp_route_next(rn
)) {
9389 if (prd
&& memcmp(rn
->p
.u
.val
, prd
->val
, 8) != 0)
9391 table
= bgp_node_get_bgp_table_info(rn
);
9397 if ((rm
= bgp_node_match(table
, &match
)) == NULL
)
9401 && rm
->p
.prefixlen
!= match
.prefixlen
) {
9402 bgp_unlock_node(rm
);
9406 for (pi
= bgp_node_get_bgp_path_info(rm
); pi
;
9409 route_vty_out_detail_header(
9411 (struct prefix_rd
*)&rn
->p
,
9412 AFI_IP
, safi
, json
);
9417 if (pathtype
== BGP_PATH_SHOW_ALL
9418 || (pathtype
== BGP_PATH_SHOW_BESTPATH
9419 && CHECK_FLAG(pi
->flags
,
9421 || (pathtype
== BGP_PATH_SHOW_MULTIPATH
9422 && (CHECK_FLAG(pi
->flags
,
9424 || CHECK_FLAG(pi
->flags
,
9425 BGP_PATH_SELECTED
))))
9426 route_vty_out_detail(vty
, bgp
, &rm
->p
,
9431 bgp_unlock_node(rm
);
9433 } else if (safi
== SAFI_FLOWSPEC
) {
9434 display
= bgp_flowspec_display_match_per_ip(afi
, rib
,
9435 &match
, prefix_check
,
9442 if ((rn
= bgp_node_match(rib
, &match
)) != NULL
) {
9444 || rn
->p
.prefixlen
== match
.prefixlen
) {
9445 for (pi
= bgp_node_get_bgp_path_info(rn
); pi
;
9448 route_vty_out_detail_header(
9449 vty
, bgp
, rn
, NULL
, afi
,
9455 if (pathtype
== BGP_PATH_SHOW_ALL
9457 == BGP_PATH_SHOW_BESTPATH
9462 == BGP_PATH_SHOW_MULTIPATH
9468 BGP_PATH_SELECTED
))))
9469 route_vty_out_detail(
9470 vty
, bgp
, &rn
->p
, pi
,
9471 afi
, safi
, json_paths
);
9475 bgp_unlock_node(rn
);
9481 json_object_object_add(json
, "paths", json_paths
);
9483 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
9484 json
, JSON_C_TO_STRING_PRETTY
));
9485 json_object_free(json
);
9488 vty_out(vty
, "%% Network not in table\n");
9496 /* Display specified route of Main RIB */
9497 static int bgp_show_route(struct vty
*vty
, struct bgp
*bgp
, const char *ip_str
,
9498 afi_t afi
, safi_t safi
, struct prefix_rd
*prd
,
9499 int prefix_check
, enum bgp_path_type pathtype
,
9503 bgp
= bgp_get_default();
9506 vty_out(vty
, "No BGP process is configured\n");
9508 vty_out(vty
, "{}\n");
9513 /* labeled-unicast routes live in the unicast table */
9514 if (safi
== SAFI_LABELED_UNICAST
)
9515 safi
= SAFI_UNICAST
;
9517 return bgp_show_route_in_table(vty
, bgp
, bgp
->rib
[afi
][safi
], ip_str
,
9518 afi
, safi
, prd
, prefix_check
, pathtype
,
9522 static int bgp_show_lcommunity(struct vty
*vty
, struct bgp
*bgp
, int argc
,
9523 struct cmd_token
**argv
, afi_t afi
, safi_t safi
,
9526 struct lcommunity
*lcom
;
9532 b
= buffer_new(1024);
9533 for (i
= 0; i
< argc
; i
++) {
9535 buffer_putc(b
, ' ');
9537 if (strmatch(argv
[i
]->text
, "AA:BB:CC")) {
9539 buffer_putstr(b
, argv
[i
]->arg
);
9543 buffer_putc(b
, '\0');
9545 str
= buffer_getstr(b
);
9548 lcom
= lcommunity_str2com(str
);
9549 XFREE(MTYPE_TMP
, str
);
9551 vty_out(vty
, "%% Large-community malformed\n");
9555 return bgp_show(vty
, bgp
, afi
, safi
, bgp_show_type_lcommunity
, lcom
,
9559 static int bgp_show_lcommunity_list(struct vty
*vty
, struct bgp
*bgp
,
9560 const char *lcom
, afi_t afi
, safi_t safi
,
9563 struct community_list
*list
;
9565 list
= community_list_lookup(bgp_clist
, lcom
, 0,
9566 LARGE_COMMUNITY_LIST_MASTER
);
9568 vty_out(vty
, "%% %s is not a valid large-community-list name\n",
9573 return bgp_show(vty
, bgp
, afi
, safi
, bgp_show_type_lcommunity_list
,
9577 DEFUN (show_ip_bgp_large_community_list
,
9578 show_ip_bgp_large_community_list_cmd
,
9579 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]] large-community-list <(1-500)|WORD> [json]",
9583 BGP_INSTANCE_HELP_STR
9585 BGP_SAFI_WITH_LABEL_HELP_STR
9586 "Display routes matching the large-community-list\n"
9587 "large-community-list number\n"
9588 "large-community-list name\n"
9592 afi_t afi
= AFI_IP6
;
9593 safi_t safi
= SAFI_UNICAST
;
9596 if (argv_find(argv
, argc
, "ip", &idx
))
9598 if (argv_find(argv
, argc
, "view", &idx
)
9599 || argv_find(argv
, argc
, "vrf", &idx
))
9600 vrf
= argv
[++idx
]->arg
;
9601 if (argv_find(argv
, argc
, "ipv4", &idx
)
9602 || argv_find(argv
, argc
, "ipv6", &idx
)) {
9603 afi
= strmatch(argv
[idx
]->text
, "ipv6") ? AFI_IP6
: AFI_IP
;
9604 if (argv_find(argv
, argc
, "unicast", &idx
)
9605 || argv_find(argv
, argc
, "multicast", &idx
))
9606 safi
= bgp_vty_safi_from_str(argv
[idx
]->text
);
9609 bool uj
= use_json(argc
, argv
);
9611 struct bgp
*bgp
= bgp_lookup_by_name(vrf
);
9613 vty_out(vty
, "Can't find BGP instance %s\n", vrf
);
9617 argv_find(argv
, argc
, "large-community-list", &idx
);
9618 return bgp_show_lcommunity_list(vty
, bgp
, argv
[idx
+ 1]->arg
, afi
, safi
,
9621 DEFUN (show_ip_bgp_large_community
,
9622 show_ip_bgp_large_community_cmd
,
9623 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]] large-community [AA:BB:CC] [json]",
9627 BGP_INSTANCE_HELP_STR
9629 BGP_SAFI_WITH_LABEL_HELP_STR
9630 "Display routes matching the large-communities\n"
9631 "List of large-community numbers\n"
9635 afi_t afi
= AFI_IP6
;
9636 safi_t safi
= SAFI_UNICAST
;
9639 if (argv_find(argv
, argc
, "ip", &idx
))
9641 if (argv_find(argv
, argc
, "view", &idx
)
9642 || argv_find(argv
, argc
, "vrf", &idx
))
9643 vrf
= argv
[++idx
]->arg
;
9644 if (argv_find(argv
, argc
, "ipv4", &idx
)
9645 || argv_find(argv
, argc
, "ipv6", &idx
)) {
9646 afi
= strmatch(argv
[idx
]->text
, "ipv6") ? AFI_IP6
: AFI_IP
;
9647 if (argv_find(argv
, argc
, "unicast", &idx
)
9648 || argv_find(argv
, argc
, "multicast", &idx
))
9649 safi
= bgp_vty_safi_from_str(argv
[idx
]->text
);
9652 bool uj
= use_json(argc
, argv
);
9654 struct bgp
*bgp
= bgp_lookup_by_name(vrf
);
9656 vty_out(vty
, "Can't find BGP instance %s\n", vrf
);
9660 if (argv_find(argv
, argc
, "AA:BB:CC", &idx
))
9661 return bgp_show_lcommunity(vty
, bgp
, argc
, argv
, afi
, safi
, uj
);
9663 return bgp_show(vty
, bgp
, afi
, safi
,
9664 bgp_show_type_lcommunity_all
, NULL
, uj
);
9667 static int bgp_table_stats(struct vty
*vty
, struct bgp
*bgp
, afi_t afi
,
9671 /* BGP route print out function without JSON */
9674 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]]\
9675 <dampening <parameters>\
9680 |community-list <(1-500)|WORD> [exact-match]\
9681 |A.B.C.D/M longer-prefixes\
9682 |X:X::X:X/M longer-prefixes\
9687 BGP_INSTANCE_HELP_STR
9689 BGP_SAFI_WITH_LABEL_HELP_STR
9690 "Display detailed information about dampening\n"
9691 "Display detail of configured dampening parameters\n"
9692 "Display routes matching the route-map\n"
9693 "A route-map to match on\n"
9694 "Display routes conforming to the prefix-list\n"
9695 "Prefix-list name\n"
9696 "Display routes conforming to the filter-list\n"
9697 "Regular expression access list name\n"
9698 "BGP RIB advertisement statistics\n"
9699 "Display routes matching the community-list\n"
9700 "community-list number\n"
9701 "community-list name\n"
9702 "Exact match of the communities\n"
9704 "Display route and more specific routes\n"
9706 "Display route and more specific routes\n")
9708 afi_t afi
= AFI_IP6
;
9709 safi_t safi
= SAFI_UNICAST
;
9710 int exact_match
= 0;
9711 struct bgp
*bgp
= NULL
;
9714 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
9719 if (argv_find(argv
, argc
, "dampening", &idx
)) {
9720 if (argv_find(argv
, argc
, "parameters", &idx
))
9721 return bgp_show_dampening_parameters(vty
, afi
, safi
);
9724 if (argv_find(argv
, argc
, "prefix-list", &idx
))
9725 return bgp_show_prefix_list(vty
, bgp
, argv
[idx
+ 1]->arg
, afi
,
9726 safi
, bgp_show_type_prefix_list
);
9728 if (argv_find(argv
, argc
, "filter-list", &idx
))
9729 return bgp_show_filter_list(vty
, bgp
, argv
[idx
+ 1]->arg
, afi
,
9730 safi
, bgp_show_type_filter_list
);
9732 if (argv_find(argv
, argc
, "statistics", &idx
))
9733 return bgp_table_stats(vty
, bgp
, afi
, safi
);
9735 if (argv_find(argv
, argc
, "route-map", &idx
))
9736 return bgp_show_route_map(vty
, bgp
, argv
[idx
+ 1]->arg
, afi
,
9737 safi
, bgp_show_type_route_map
);
9739 if (argv_find(argv
, argc
, "community-list", &idx
)) {
9740 const char *clist_number_or_name
= argv
[++idx
]->arg
;
9741 if (++idx
< argc
&& strmatch(argv
[idx
]->text
, "exact-match"))
9743 return bgp_show_community_list(vty
, bgp
, clist_number_or_name
,
9744 exact_match
, afi
, safi
);
9747 if (argv_find(argv
, argc
, "A.B.C.D/M", &idx
)
9748 || argv_find(argv
, argc
, "X:X::X:X/M", &idx
))
9749 return bgp_show_prefix_longer(vty
, bgp
, argv
[idx
]->arg
, afi
,
9751 bgp_show_type_prefix_longer
);
9756 /* BGP route print out function with JSON */
9757 DEFUN (show_ip_bgp_json
,
9758 show_ip_bgp_json_cmd
,
9759 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]]\
9761 |dampening <flap-statistics|dampened-paths>\
9762 |community [AA:NN|local-AS|no-advertise|no-export\
9763 |graceful-shutdown|no-peer|blackhole|llgr-stale|no-llgr\
9764 |accept-own|accept-own-nexthop|route-filter-v6\
9765 |route-filter-v4|route-filter-translated-v6\
9766 |route-filter-translated-v4] [exact-match]\
9771 BGP_INSTANCE_HELP_STR
9773 BGP_SAFI_WITH_LABEL_HELP_STR
9774 "Display only routes with non-natural netmasks\n"
9775 "Display detailed information about dampening\n"
9776 "Display flap statistics of routes\n"
9777 "Display paths suppressed due to dampening\n"
9778 "Display routes matching the communities\n"
9780 "Do not send outside local AS (well-known community)\n"
9781 "Do not advertise to any peer (well-known community)\n"
9782 "Do not export to next AS (well-known community)\n"
9783 "Graceful shutdown (well-known community)\n"
9784 "Do not export to any peer (well-known community)\n"
9785 "Inform EBGP peers to blackhole traffic to prefix (well-known community)\n"
9786 "Staled Long-lived Graceful Restart VPN route (well-known community)\n"
9787 "Removed because Long-lived Graceful Restart was not enabled for VPN route (well-known community)\n"
9788 "Should accept local VPN route if exported and imported into different VRF (well-known community)\n"
9789 "Should accept VPN route with local nexthop (well-known community)\n"
9790 "RT VPNv6 route filtering (well-known community)\n"
9791 "RT VPNv4 route filtering (well-known community)\n"
9792 "RT translated VPNv6 route filtering (well-known community)\n"
9793 "RT translated VPNv4 route filtering (well-known community)\n"
9794 "Exact match of the communities\n"
9797 afi_t afi
= AFI_IP6
;
9798 safi_t safi
= SAFI_UNICAST
;
9799 enum bgp_show_type sh_type
= bgp_show_type_normal
;
9800 struct bgp
*bgp
= NULL
;
9802 int exact_match
= 0;
9803 bool uj
= use_json(argc
, argv
);
9808 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
9813 if (argv_find(argv
, argc
, "cidr-only", &idx
))
9814 return bgp_show(vty
, bgp
, afi
, safi
, bgp_show_type_cidr_only
,
9817 if (argv_find(argv
, argc
, "dampening", &idx
)) {
9818 if (argv_find(argv
, argc
, "dampened-paths", &idx
))
9819 return bgp_show(vty
, bgp
, afi
, safi
,
9820 bgp_show_type_dampend_paths
, NULL
, uj
);
9821 else if (argv_find(argv
, argc
, "flap-statistics", &idx
))
9822 return bgp_show(vty
, bgp
, afi
, safi
,
9823 bgp_show_type_flap_statistics
, NULL
,
9827 if (argv_find(argv
, argc
, "community", &idx
)) {
9828 char *maybecomm
= NULL
;
9829 char *community
= NULL
;
9831 if (idx
+ 1 < argc
) {
9832 if (argv
[idx
+ 1]->type
== VARIABLE_TKN
)
9833 maybecomm
= argv
[idx
+ 1]->arg
;
9835 maybecomm
= argv
[idx
+ 1]->text
;
9838 if (maybecomm
&& !strmatch(maybecomm
, "json")
9839 && !strmatch(maybecomm
, "exact-match"))
9840 community
= maybecomm
;
9842 if (argv_find(argv
, argc
, "exact-match", &idx
))
9846 return bgp_show_community(vty
, bgp
, community
,
9847 exact_match
, afi
, safi
, uj
);
9849 return (bgp_show(vty
, bgp
, afi
, safi
,
9850 bgp_show_type_community_all
, NULL
,
9854 return bgp_show(vty
, bgp
, afi
, safi
, sh_type
, NULL
, uj
);
9857 DEFUN (show_ip_bgp_route
,
9858 show_ip_bgp_route_cmd
,
9859 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]]"
9860 "<A.B.C.D|A.B.C.D/M|X:X::X:X|X:X::X:X/M> [<bestpath|multipath>] [json]",
9864 BGP_INSTANCE_HELP_STR
9866 BGP_SAFI_WITH_LABEL_HELP_STR
9867 "Network in the BGP routing table to display\n"
9869 "Network in the BGP routing table to display\n"
9871 "Display only the bestpath\n"
9872 "Display only multipaths\n"
9875 int prefix_check
= 0;
9877 afi_t afi
= AFI_IP6
;
9878 safi_t safi
= SAFI_UNICAST
;
9879 char *prefix
= NULL
;
9880 struct bgp
*bgp
= NULL
;
9881 enum bgp_path_type path_type
;
9882 bool uj
= use_json(argc
, argv
);
9886 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
9893 "Specified 'all' vrf's but this command currently only works per view/vrf\n");
9897 /* <A.B.C.D|A.B.C.D/M|X:X::X:X|X:X::X:X/M> */
9898 if (argv_find(argv
, argc
, "A.B.C.D", &idx
)
9899 || argv_find(argv
, argc
, "X:X::X:X", &idx
))
9901 else if (argv_find(argv
, argc
, "A.B.C.D/M", &idx
)
9902 || argv_find(argv
, argc
, "X:X::X:X/M", &idx
))
9905 if ((argv
[idx
]->type
== IPV6_TKN
|| argv
[idx
]->type
== IPV6_PREFIX_TKN
)
9906 && afi
!= AFI_IP6
) {
9908 "%% Cannot specify IPv6 address or prefix with IPv4 AFI\n");
9911 if ((argv
[idx
]->type
== IPV4_TKN
|| argv
[idx
]->type
== IPV4_PREFIX_TKN
)
9914 "%% Cannot specify IPv4 address or prefix with IPv6 AFI\n");
9918 prefix
= argv
[idx
]->arg
;
9920 /* [<bestpath|multipath>] */
9921 if (argv_find(argv
, argc
, "bestpath", &idx
))
9922 path_type
= BGP_PATH_SHOW_BESTPATH
;
9923 else if (argv_find(argv
, argc
, "multipath", &idx
))
9924 path_type
= BGP_PATH_SHOW_MULTIPATH
;
9926 path_type
= BGP_PATH_SHOW_ALL
;
9928 return bgp_show_route(vty
, bgp
, prefix
, afi
, safi
, NULL
, prefix_check
,
9932 DEFUN (show_ip_bgp_regexp
,
9933 show_ip_bgp_regexp_cmd
,
9934 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]] regexp REGEX...",
9938 BGP_INSTANCE_HELP_STR
9940 BGP_SAFI_WITH_LABEL_HELP_STR
9941 "Display routes matching the AS path regular expression\n"
9942 "A regular-expression (1234567890_^|[,{}() ]$*+.?-\\) to match the BGP AS paths\n")
9944 afi_t afi
= AFI_IP6
;
9945 safi_t safi
= SAFI_UNICAST
;
9946 struct bgp
*bgp
= NULL
;
9949 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
9954 // get index of regex
9955 argv_find(argv
, argc
, "regexp", &idx
);
9958 char *regstr
= argv_concat(argv
, argc
, idx
);
9959 int rc
= bgp_show_regexp(vty
, bgp
, (const char *)regstr
, afi
, safi
,
9960 bgp_show_type_regexp
);
9961 XFREE(MTYPE_TMP
, regstr
);
9965 DEFUN (show_ip_bgp_instance_all
,
9966 show_ip_bgp_instance_all_cmd
,
9967 "show [ip] bgp <view|vrf> all ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]] [json]",
9971 BGP_INSTANCE_ALL_HELP_STR
9973 BGP_SAFI_WITH_LABEL_HELP_STR
9977 safi_t safi
= SAFI_UNICAST
;
9978 struct bgp
*bgp
= NULL
;
9980 bool uj
= use_json(argc
, argv
);
9985 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
9990 bgp_show_all_instances_routes_vty(vty
, afi
, safi
, uj
);
9994 static int bgp_show_regexp(struct vty
*vty
, struct bgp
*bgp
, const char *regstr
,
9995 afi_t afi
, safi_t safi
, enum bgp_show_type type
)
10000 if (!config_bgp_aspath_validate(regstr
)) {
10001 vty_out(vty
, "Invalid character in as-path access-list %s\n",
10003 return CMD_WARNING_CONFIG_FAILED
;
10006 regex
= bgp_regcomp(regstr
);
10008 vty_out(vty
, "Can't compile regexp %s\n", regstr
);
10009 return CMD_WARNING
;
10012 rc
= bgp_show(vty
, bgp
, afi
, safi
, type
, regex
, 0);
10013 bgp_regex_free(regex
);
10017 static int bgp_show_prefix_list(struct vty
*vty
, struct bgp
*bgp
,
10018 const char *prefix_list_str
, afi_t afi
,
10019 safi_t safi
, enum bgp_show_type type
)
10021 struct prefix_list
*plist
;
10023 plist
= prefix_list_lookup(afi
, prefix_list_str
);
10024 if (plist
== NULL
) {
10025 vty_out(vty
, "%% %s is not a valid prefix-list name\n",
10027 return CMD_WARNING
;
10030 return bgp_show(vty
, bgp
, afi
, safi
, type
, plist
, 0);
10033 static int bgp_show_filter_list(struct vty
*vty
, struct bgp
*bgp
,
10034 const char *filter
, afi_t afi
, safi_t safi
,
10035 enum bgp_show_type type
)
10037 struct as_list
*as_list
;
10039 as_list
= as_list_lookup(filter
);
10040 if (as_list
== NULL
) {
10041 vty_out(vty
, "%% %s is not a valid AS-path access-list name\n",
10043 return CMD_WARNING
;
10046 return bgp_show(vty
, bgp
, afi
, safi
, type
, as_list
, 0);
10049 static int bgp_show_route_map(struct vty
*vty
, struct bgp
*bgp
,
10050 const char *rmap_str
, afi_t afi
, safi_t safi
,
10051 enum bgp_show_type type
)
10053 struct route_map
*rmap
;
10055 rmap
= route_map_lookup_by_name(rmap_str
);
10057 vty_out(vty
, "%% %s is not a valid route-map name\n", rmap_str
);
10058 return CMD_WARNING
;
10061 return bgp_show(vty
, bgp
, afi
, safi
, type
, rmap
, 0);
10064 static int bgp_show_community(struct vty
*vty
, struct bgp
*bgp
,
10065 const char *comstr
, int exact
, afi_t afi
,
10066 safi_t safi
, bool use_json
)
10068 struct community
*com
;
10071 com
= community_str2com(comstr
);
10073 vty_out(vty
, "%% Community malformed: %s\n", comstr
);
10074 return CMD_WARNING
;
10077 ret
= bgp_show(vty
, bgp
, afi
, safi
,
10078 (exact
? bgp_show_type_community_exact
10079 : bgp_show_type_community
),
10081 community_free(&com
);
10086 static int bgp_show_community_list(struct vty
*vty
, struct bgp
*bgp
,
10087 const char *com
, int exact
, afi_t afi
,
10090 struct community_list
*list
;
10092 list
= community_list_lookup(bgp_clist
, com
, 0, COMMUNITY_LIST_MASTER
);
10093 if (list
== NULL
) {
10094 vty_out(vty
, "%% %s is not a valid community-list name\n", com
);
10095 return CMD_WARNING
;
10098 return bgp_show(vty
, bgp
, afi
, safi
,
10099 (exact
? bgp_show_type_community_list_exact
10100 : bgp_show_type_community_list
),
10104 static int bgp_show_prefix_longer(struct vty
*vty
, struct bgp
*bgp
,
10105 const char *prefix
, afi_t afi
, safi_t safi
,
10106 enum bgp_show_type type
)
10113 ret
= str2prefix(prefix
, p
);
10115 vty_out(vty
, "%% Malformed Prefix\n");
10116 return CMD_WARNING
;
10119 ret
= bgp_show(vty
, bgp
, afi
, safi
, type
, p
, 0);
10124 static struct peer
*peer_lookup_in_view(struct vty
*vty
, struct bgp
*bgp
,
10125 const char *ip_str
, bool use_json
)
10129 union sockunion su
;
10131 /* Get peer sockunion. */
10132 ret
= str2sockunion(ip_str
, &su
);
10134 peer
= peer_lookup_by_conf_if(bgp
, ip_str
);
10136 peer
= peer_lookup_by_hostname(bgp
, ip_str
);
10140 json_object
*json_no
= NULL
;
10141 json_no
= json_object_new_object();
10142 json_object_string_add(
10144 "malformedAddressOrName",
10146 vty_out(vty
, "%s\n",
10147 json_object_to_json_string_ext(
10149 JSON_C_TO_STRING_PRETTY
));
10150 json_object_free(json_no
);
10153 "%% Malformed address or name: %s\n",
10161 /* Peer structure lookup. */
10162 peer
= peer_lookup(bgp
, &su
);
10165 json_object
*json_no
= NULL
;
10166 json_no
= json_object_new_object();
10167 json_object_string_add(json_no
, "warning",
10168 "No such neighbor in this view/vrf");
10169 vty_out(vty
, "%s\n",
10170 json_object_to_json_string_ext(
10171 json_no
, JSON_C_TO_STRING_PRETTY
));
10172 json_object_free(json_no
);
10174 vty_out(vty
, "No such neighbor in this view/vrf\n");
10182 BGP_STATS_MAXBITLEN
= 0,
10184 BGP_STATS_PREFIXES
,
10186 BGP_STATS_UNAGGREGATEABLE
,
10187 BGP_STATS_MAX_AGGREGATEABLE
,
10188 BGP_STATS_AGGREGATES
,
10190 BGP_STATS_ASPATH_COUNT
,
10191 BGP_STATS_ASPATH_MAXHOPS
,
10192 BGP_STATS_ASPATH_TOTHOPS
,
10193 BGP_STATS_ASPATH_MAXSIZE
,
10194 BGP_STATS_ASPATH_TOTSIZE
,
10195 BGP_STATS_ASN_HIGHEST
,
10199 static const char *table_stats_strs
[] = {
10200 [BGP_STATS_PREFIXES
] = "Total Prefixes",
10201 [BGP_STATS_TOTPLEN
] = "Average prefix length",
10202 [BGP_STATS_RIB
] = "Total Advertisements",
10203 [BGP_STATS_UNAGGREGATEABLE
] = "Unaggregateable prefixes",
10204 [BGP_STATS_MAX_AGGREGATEABLE
] =
10205 "Maximum aggregateable prefixes",
10206 [BGP_STATS_AGGREGATES
] = "BGP Aggregate advertisements",
10207 [BGP_STATS_SPACE
] = "Address space advertised",
10208 [BGP_STATS_ASPATH_COUNT
] = "Advertisements with paths",
10209 [BGP_STATS_ASPATH_MAXHOPS
] = "Longest AS-Path (hops)",
10210 [BGP_STATS_ASPATH_MAXSIZE
] = "Largest AS-Path (bytes)",
10211 [BGP_STATS_ASPATH_TOTHOPS
] = "Average AS-Path length (hops)",
10212 [BGP_STATS_ASPATH_TOTSIZE
] = "Average AS-Path size (bytes)",
10213 [BGP_STATS_ASN_HIGHEST
] = "Highest public ASN",
10214 [BGP_STATS_MAX
] = NULL
,
10217 struct bgp_table_stats
{
10218 struct bgp_table
*table
;
10219 unsigned long long counts
[BGP_STATS_MAX
];
10220 double total_space
;
10224 #define TALLY_SIGFIG 100000
10225 static unsigned long
10226 ravg_tally (unsigned long count
, unsigned long oldavg
, unsigned long newval
)
10228 unsigned long newtot
= (count
-1) * oldavg
+ (newval
* TALLY_SIGFIG
);
10229 unsigned long res
= (newtot
* TALLY_SIGFIG
) / count
;
10230 unsigned long ret
= newtot
/ count
;
10232 if ((res
% TALLY_SIGFIG
) > (TALLY_SIGFIG
/2))
10239 static void bgp_table_stats_rn(struct bgp_node
*rn
, struct bgp_node
*top
,
10240 struct bgp_table_stats
*ts
, unsigned int space
)
10242 struct bgp_node
*prn
= bgp_node_parent_nolock(rn
);
10243 struct bgp_path_info
*pi
;
10248 if (!bgp_node_has_bgp_path_info_data(rn
))
10251 ts
->counts
[BGP_STATS_PREFIXES
]++;
10252 ts
->counts
[BGP_STATS_TOTPLEN
] += rn
->p
.prefixlen
;
10255 ts
->counts
[BGP_STATS_AVGPLEN
]
10256 = ravg_tally (ts
->counts
[BGP_STATS_PREFIXES
],
10257 ts
->counts
[BGP_STATS_AVGPLEN
],
10261 /* check if the prefix is included by any other announcements */
10262 while (prn
&& !bgp_node_has_bgp_path_info_data(prn
))
10263 prn
= bgp_node_parent_nolock(prn
);
10265 if (prn
== NULL
|| prn
== top
) {
10266 ts
->counts
[BGP_STATS_UNAGGREGATEABLE
]++;
10267 /* announced address space */
10269 ts
->total_space
+= pow(2.0, space
- rn
->p
.prefixlen
);
10270 } else if (bgp_node_has_bgp_path_info_data(prn
))
10271 ts
->counts
[BGP_STATS_MAX_AGGREGATEABLE
]++;
10274 for (pi
= bgp_node_get_bgp_path_info(rn
); pi
; pi
= pi
->next
) {
10275 ts
->counts
[BGP_STATS_RIB
]++;
10278 && (CHECK_FLAG(pi
->attr
->flag
,
10279 ATTR_FLAG_BIT(BGP_ATTR_ATOMIC_AGGREGATE
))))
10280 ts
->counts
[BGP_STATS_AGGREGATES
]++;
10282 /* as-path stats */
10283 if (pi
->attr
&& pi
->attr
->aspath
) {
10284 unsigned int hops
= aspath_count_hops(pi
->attr
->aspath
);
10285 unsigned int size
= aspath_size(pi
->attr
->aspath
);
10286 as_t highest
= aspath_highest(pi
->attr
->aspath
);
10288 ts
->counts
[BGP_STATS_ASPATH_COUNT
]++;
10290 if (hops
> ts
->counts
[BGP_STATS_ASPATH_MAXHOPS
])
10291 ts
->counts
[BGP_STATS_ASPATH_MAXHOPS
] = hops
;
10293 if (size
> ts
->counts
[BGP_STATS_ASPATH_MAXSIZE
])
10294 ts
->counts
[BGP_STATS_ASPATH_MAXSIZE
] = size
;
10296 ts
->counts
[BGP_STATS_ASPATH_TOTHOPS
] += hops
;
10297 ts
->counts
[BGP_STATS_ASPATH_TOTSIZE
] += size
;
10299 ts
->counts
[BGP_STATS_ASPATH_AVGHOPS
]
10300 = ravg_tally (ts
->counts
[BGP_STATS_ASPATH_COUNT
],
10301 ts
->counts
[BGP_STATS_ASPATH_AVGHOPS
],
10303 ts
->counts
[BGP_STATS_ASPATH_AVGSIZE
]
10304 = ravg_tally (ts
->counts
[BGP_STATS_ASPATH_COUNT
],
10305 ts
->counts
[BGP_STATS_ASPATH_AVGSIZE
],
10308 if (highest
> ts
->counts
[BGP_STATS_ASN_HIGHEST
])
10309 ts
->counts
[BGP_STATS_ASN_HIGHEST
] = highest
;
10314 static int bgp_table_stats_walker(struct thread
*t
)
10316 struct bgp_node
*rn
, *nrn
;
10317 struct bgp_node
*top
;
10318 struct bgp_table_stats
*ts
= THREAD_ARG(t
);
10319 unsigned int space
= 0;
10321 if (!(top
= bgp_table_top(ts
->table
)))
10324 switch (ts
->table
->afi
) {
10326 space
= IPV4_MAX_BITLEN
;
10329 space
= IPV6_MAX_BITLEN
;
10335 ts
->counts
[BGP_STATS_MAXBITLEN
] = space
;
10337 for (rn
= top
; rn
; rn
= bgp_route_next(rn
)) {
10338 if (ts
->table
->safi
== SAFI_MPLS_VPN
) {
10339 struct bgp_table
*table
;
10341 table
= bgp_node_get_bgp_table_info(rn
);
10345 top
= bgp_table_top(table
);
10346 for (nrn
= bgp_table_top(table
); nrn
;
10347 nrn
= bgp_route_next(nrn
))
10348 bgp_table_stats_rn(nrn
, top
, ts
, space
);
10350 bgp_table_stats_rn(rn
, top
, ts
, space
);
10357 static int bgp_table_stats(struct vty
*vty
, struct bgp
*bgp
, afi_t afi
,
10360 struct bgp_table_stats ts
;
10363 if (!bgp
->rib
[afi
][safi
]) {
10364 vty_out(vty
, "%% No RIB exist's for the AFI(%d)/SAFI(%d)\n",
10366 return CMD_WARNING
;
10369 vty_out(vty
, "BGP %s RIB statistics\n", afi_safi_print(afi
, safi
));
10371 /* labeled-unicast routes live in the unicast table */
10372 if (safi
== SAFI_LABELED_UNICAST
)
10373 safi
= SAFI_UNICAST
;
10375 memset(&ts
, 0, sizeof(ts
));
10376 ts
.table
= bgp
->rib
[afi
][safi
];
10377 thread_execute(bm
->master
, bgp_table_stats_walker
, &ts
, 0);
10379 for (i
= 0; i
< BGP_STATS_MAX
; i
++) {
10380 if (!table_stats_strs
[i
])
10385 case BGP_STATS_ASPATH_AVGHOPS
:
10386 case BGP_STATS_ASPATH_AVGSIZE
:
10387 case BGP_STATS_AVGPLEN
:
10388 vty_out (vty
, "%-30s: ", table_stats_strs
[i
]);
10389 vty_out (vty
, "%12.2f",
10390 (float)ts
.counts
[i
] / (float)TALLY_SIGFIG
);
10393 case BGP_STATS_ASPATH_TOTHOPS
:
10394 case BGP_STATS_ASPATH_TOTSIZE
:
10395 vty_out(vty
, "%-30s: ", table_stats_strs
[i
]);
10396 vty_out(vty
, "%12.2f",
10398 ? (float)ts
.counts
[i
]
10400 [BGP_STATS_ASPATH_COUNT
]
10403 case BGP_STATS_TOTPLEN
:
10404 vty_out(vty
, "%-30s: ", table_stats_strs
[i
]);
10405 vty_out(vty
, "%12.2f",
10407 ? (float)ts
.counts
[i
]
10409 [BGP_STATS_PREFIXES
]
10412 case BGP_STATS_SPACE
:
10413 vty_out(vty
, "%-30s: ", table_stats_strs
[i
]);
10414 vty_out(vty
, "%12g\n", ts
.total_space
);
10416 if (afi
== AFI_IP6
) {
10417 vty_out(vty
, "%30s: ", "/32 equivalent ");
10418 vty_out(vty
, "%12g\n",
10419 ts
.total_space
* pow(2.0, -128 + 32));
10420 vty_out(vty
, "%30s: ", "/48 equivalent ");
10421 vty_out(vty
, "%12g\n",
10422 ts
.total_space
* pow(2.0, -128 + 48));
10424 vty_out(vty
, "%30s: ", "% announced ");
10425 vty_out(vty
, "%12.2f\n",
10426 ts
.total_space
* 100. * pow(2.0, -32));
10427 vty_out(vty
, "%30s: ", "/8 equivalent ");
10428 vty_out(vty
, "%12.2f\n",
10429 ts
.total_space
* pow(2.0, -32 + 8));
10430 vty_out(vty
, "%30s: ", "/24 equivalent ");
10431 vty_out(vty
, "%12.2f\n",
10432 ts
.total_space
* pow(2.0, -32 + 24));
10436 vty_out(vty
, "%-30s: ", table_stats_strs
[i
]);
10437 vty_out(vty
, "%12llu", ts
.counts
[i
]);
10440 vty_out(vty
, "\n");
10442 return CMD_SUCCESS
;
10454 PCOUNT_PFCNT
, /* the figure we display to users */
10458 static const char *pcount_strs
[] = {
10459 [PCOUNT_ADJ_IN
] = "Adj-in",
10460 [PCOUNT_DAMPED
] = "Damped",
10461 [PCOUNT_REMOVED
] = "Removed",
10462 [PCOUNT_HISTORY
] = "History",
10463 [PCOUNT_STALE
] = "Stale",
10464 [PCOUNT_VALID
] = "Valid",
10465 [PCOUNT_ALL
] = "All RIB",
10466 [PCOUNT_COUNTED
] = "PfxCt counted",
10467 [PCOUNT_PFCNT
] = "Useable",
10468 [PCOUNT_MAX
] = NULL
,
10471 struct peer_pcounts
{
10472 unsigned int count
[PCOUNT_MAX
];
10473 const struct peer
*peer
;
10474 const struct bgp_table
*table
;
10477 static int bgp_peer_count_walker(struct thread
*t
)
10479 struct bgp_node
*rn
;
10480 struct peer_pcounts
*pc
= THREAD_ARG(t
);
10481 const struct peer
*peer
= pc
->peer
;
10483 for (rn
= bgp_table_top(pc
->table
); rn
; rn
= bgp_route_next(rn
)) {
10484 struct bgp_adj_in
*ain
;
10485 struct bgp_path_info
*pi
;
10487 for (ain
= rn
->adj_in
; ain
; ain
= ain
->next
)
10488 if (ain
->peer
== peer
)
10489 pc
->count
[PCOUNT_ADJ_IN
]++;
10491 for (pi
= bgp_node_get_bgp_path_info(rn
); pi
; pi
= pi
->next
) {
10493 if (pi
->peer
!= peer
)
10496 pc
->count
[PCOUNT_ALL
]++;
10498 if (CHECK_FLAG(pi
->flags
, BGP_PATH_DAMPED
))
10499 pc
->count
[PCOUNT_DAMPED
]++;
10500 if (CHECK_FLAG(pi
->flags
, BGP_PATH_HISTORY
))
10501 pc
->count
[PCOUNT_HISTORY
]++;
10502 if (CHECK_FLAG(pi
->flags
, BGP_PATH_REMOVED
))
10503 pc
->count
[PCOUNT_REMOVED
]++;
10504 if (CHECK_FLAG(pi
->flags
, BGP_PATH_STALE
))
10505 pc
->count
[PCOUNT_STALE
]++;
10506 if (CHECK_FLAG(pi
->flags
, BGP_PATH_VALID
))
10507 pc
->count
[PCOUNT_VALID
]++;
10508 if (!CHECK_FLAG(pi
->flags
, BGP_PATH_UNUSEABLE
))
10509 pc
->count
[PCOUNT_PFCNT
]++;
10511 if (CHECK_FLAG(pi
->flags
, BGP_PATH_COUNTED
)) {
10512 pc
->count
[PCOUNT_COUNTED
]++;
10513 if (CHECK_FLAG(pi
->flags
, BGP_PATH_UNUSEABLE
))
10515 EC_LIB_DEVELOPMENT
,
10516 "Attempting to count but flags say it is unusable");
10518 if (!CHECK_FLAG(pi
->flags
, BGP_PATH_UNUSEABLE
))
10520 EC_LIB_DEVELOPMENT
,
10521 "Not counted but flags say we should");
10528 static int bgp_peer_counts(struct vty
*vty
, struct peer
*peer
, afi_t afi
,
10529 safi_t safi
, bool use_json
)
10531 struct peer_pcounts pcounts
= {.peer
= peer
};
10533 json_object
*json
= NULL
;
10534 json_object
*json_loop
= NULL
;
10537 json
= json_object_new_object();
10538 json_loop
= json_object_new_object();
10541 if (!peer
|| !peer
->bgp
|| !peer
->afc
[afi
][safi
]
10542 || !peer
->bgp
->rib
[afi
][safi
]) {
10544 json_object_string_add(
10546 "No such neighbor or address family");
10547 vty_out(vty
, "%s\n", json_object_to_json_string(json
));
10548 json_object_free(json
);
10550 vty_out(vty
, "%% No such neighbor or address family\n");
10552 return CMD_WARNING
;
10555 memset(&pcounts
, 0, sizeof(pcounts
));
10556 pcounts
.peer
= peer
;
10557 pcounts
.table
= peer
->bgp
->rib
[afi
][safi
];
10559 /* in-place call via thread subsystem so as to record execution time
10560 * stats for the thread-walk (i.e. ensure this can't be blamed on
10561 * on just vty_read()).
10563 thread_execute(bm
->master
, bgp_peer_count_walker
, &pcounts
, 0);
10566 json_object_string_add(json
, "prefixCountsFor", peer
->host
);
10567 json_object_string_add(json
, "multiProtocol",
10568 afi_safi_print(afi
, safi
));
10569 json_object_int_add(json
, "pfxCounter",
10570 peer
->pcount
[afi
][safi
]);
10572 for (i
= 0; i
< PCOUNT_MAX
; i
++)
10573 json_object_int_add(json_loop
, pcount_strs
[i
],
10576 json_object_object_add(json
, "ribTableWalkCounters", json_loop
);
10578 if (pcounts
.count
[PCOUNT_PFCNT
] != peer
->pcount
[afi
][safi
]) {
10579 json_object_string_add(json
, "pfxctDriftFor",
10581 json_object_string_add(
10582 json
, "recommended",
10583 "Please report this bug, with the above command output");
10585 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
10586 json
, JSON_C_TO_STRING_PRETTY
));
10587 json_object_free(json
);
10591 && bgp_flag_check(peer
->bgp
, BGP_FLAG_SHOW_HOSTNAME
)) {
10592 vty_out(vty
, "Prefix counts for %s/%s, %s\n",
10593 peer
->hostname
, peer
->host
,
10594 afi_safi_print(afi
, safi
));
10596 vty_out(vty
, "Prefix counts for %s, %s\n", peer
->host
,
10597 afi_safi_print(afi
, safi
));
10600 vty_out(vty
, "PfxCt: %ld\n", peer
->pcount
[afi
][safi
]);
10601 vty_out(vty
, "\nCounts from RIB table walk:\n\n");
10603 for (i
= 0; i
< PCOUNT_MAX
; i
++)
10604 vty_out(vty
, "%20s: %-10d\n", pcount_strs
[i
],
10607 if (pcounts
.count
[PCOUNT_PFCNT
] != peer
->pcount
[afi
][safi
]) {
10608 vty_out(vty
, "%s [pcount] PfxCt drift!\n", peer
->host
);
10610 "Please report this bug, with the above command output\n");
10614 return CMD_SUCCESS
;
10617 DEFUN (show_ip_bgp_instance_neighbor_prefix_counts
,
10618 show_ip_bgp_instance_neighbor_prefix_counts_cmd
,
10619 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_CMD_STR
"]] "
10620 "neighbors <A.B.C.D|X:X::X:X|WORD> prefix-counts [json]",
10624 BGP_INSTANCE_HELP_STR
10627 "Detailed information on TCP and BGP neighbor connections\n"
10628 "Neighbor to display information about\n"
10629 "Neighbor to display information about\n"
10630 "Neighbor on BGP configured interface\n"
10631 "Display detailed prefix count information\n"
10634 afi_t afi
= AFI_IP6
;
10635 safi_t safi
= SAFI_UNICAST
;
10638 struct bgp
*bgp
= NULL
;
10639 bool uj
= use_json(argc
, argv
);
10644 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
10647 return CMD_WARNING
;
10649 argv_find(argv
, argc
, "neighbors", &idx
);
10650 peer
= peer_lookup_in_view(vty
, bgp
, argv
[idx
+ 1]->arg
, uj
);
10652 return CMD_WARNING
;
10654 return bgp_peer_counts(vty
, peer
, AFI_IP
, SAFI_UNICAST
, uj
);
10657 #ifdef KEEP_OLD_VPN_COMMANDS
10658 DEFUN (show_ip_bgp_vpn_neighbor_prefix_counts
,
10659 show_ip_bgp_vpn_neighbor_prefix_counts_cmd
,
10660 "show [ip] bgp <vpnv4|vpnv6> all neighbors <A.B.C.D|X:X::X:X|WORD> prefix-counts [json]",
10665 "Display information about all VPNv4 NLRIs\n"
10666 "Detailed information on TCP and BGP neighbor connections\n"
10667 "Neighbor to display information about\n"
10668 "Neighbor to display information about\n"
10669 "Neighbor on BGP configured interface\n"
10670 "Display detailed prefix count information\n"
10675 bool uj
= use_json(argc
, argv
);
10677 peer
= peer_lookup_in_view(vty
, NULL
, argv
[idx_peer
]->arg
, uj
);
10679 return CMD_WARNING
;
10681 return bgp_peer_counts(vty
, peer
, AFI_IP
, SAFI_MPLS_VPN
, uj
);
10684 DEFUN (show_ip_bgp_vpn_all_route_prefix
,
10685 show_ip_bgp_vpn_all_route_prefix_cmd
,
10686 "show [ip] bgp <vpnv4|vpnv6> all <A.B.C.D|A.B.C.D/M> [json]",
10691 "Display information about all VPNv4 NLRIs\n"
10692 "Network in the BGP routing table to display\n"
10693 "Network in the BGP routing table to display\n"
10697 char *network
= NULL
;
10698 struct bgp
*bgp
= bgp_get_default();
10700 vty_out(vty
, "Can't find default instance\n");
10701 return CMD_WARNING
;
10704 if (argv_find(argv
, argc
, "A.B.C.D", &idx
))
10705 network
= argv
[idx
]->arg
;
10706 else if (argv_find(argv
, argc
, "A.B.C.D/M", &idx
))
10707 network
= argv
[idx
]->arg
;
10709 vty_out(vty
, "Unable to figure out Network\n");
10710 return CMD_WARNING
;
10713 return bgp_show_route(vty
, bgp
, network
, AFI_IP
, SAFI_MPLS_VPN
, NULL
, 0,
10714 BGP_PATH_SHOW_ALL
, use_json(argc
, argv
));
10716 #endif /* KEEP_OLD_VPN_COMMANDS */
10718 DEFUN (show_ip_bgp_l2vpn_evpn_all_route_prefix
,
10719 show_ip_bgp_l2vpn_evpn_all_route_prefix_cmd
,
10720 "show [ip] bgp l2vpn evpn all <A.B.C.D|A.B.C.D/M> [json]",
10726 "Display information about all EVPN NLRIs\n"
10727 "Network in the BGP routing table to display\n"
10728 "Network in the BGP routing table to display\n"
10732 char *network
= NULL
;
10734 if (argv_find(argv
, argc
, "A.B.C.D", &idx
))
10735 network
= argv
[idx
]->arg
;
10736 else if (argv_find(argv
, argc
, "A.B.C.D/M", &idx
))
10737 network
= argv
[idx
]->arg
;
10739 vty_out(vty
, "Unable to figure out Network\n");
10740 return CMD_WARNING
;
10742 return bgp_show_route(vty
, NULL
, network
, AFI_L2VPN
, SAFI_EVPN
, NULL
, 0,
10743 BGP_PATH_SHOW_ALL
, use_json(argc
, argv
));
10746 static void show_adj_route(struct vty
*vty
, struct peer
*peer
, afi_t afi
,
10747 safi_t safi
, enum bgp_show_adj_route_type type
,
10748 const char *rmap_name
, bool use_json
,
10751 struct bgp_table
*table
;
10752 struct bgp_adj_in
*ain
;
10753 struct bgp_adj_out
*adj
;
10754 unsigned long output_count
;
10755 unsigned long filtered_count
;
10756 struct bgp_node
*rn
;
10762 struct update_subgroup
*subgrp
;
10763 json_object
*json_scode
= NULL
;
10764 json_object
*json_ocode
= NULL
;
10765 json_object
*json_ar
= NULL
;
10766 struct peer_af
*paf
;
10767 bool route_filtered
;
10770 json_scode
= json_object_new_object();
10771 json_ocode
= json_object_new_object();
10772 json_ar
= json_object_new_object();
10774 json_object_string_add(json_scode
, "suppressed", "s");
10775 json_object_string_add(json_scode
, "damped", "d");
10776 json_object_string_add(json_scode
, "history", "h");
10777 json_object_string_add(json_scode
, "valid", "*");
10778 json_object_string_add(json_scode
, "best", ">");
10779 json_object_string_add(json_scode
, "multipath", "=");
10780 json_object_string_add(json_scode
, "internal", "i");
10781 json_object_string_add(json_scode
, "ribFailure", "r");
10782 json_object_string_add(json_scode
, "stale", "S");
10783 json_object_string_add(json_scode
, "removed", "R");
10785 json_object_string_add(json_ocode
, "igp", "i");
10786 json_object_string_add(json_ocode
, "egp", "e");
10787 json_object_string_add(json_ocode
, "incomplete", "?");
10794 json_object_string_add(json
, "alert", "no BGP");
10795 vty_out(vty
, "%s\n", json_object_to_json_string(json
));
10796 json_object_free(json
);
10798 vty_out(vty
, "%% No bgp\n");
10802 /* labeled-unicast routes live in the unicast table */
10803 if (safi
== SAFI_LABELED_UNICAST
)
10804 table
= bgp
->rib
[afi
][SAFI_UNICAST
];
10806 table
= bgp
->rib
[afi
][safi
];
10808 output_count
= filtered_count
= 0;
10809 subgrp
= peer_subgroup(peer
, afi
, safi
);
10811 if (type
== bgp_show_adj_route_advertised
&& subgrp
10812 && CHECK_FLAG(subgrp
->sflags
, SUBGRP_STATUS_DEFAULT_ORIGINATE
)) {
10814 json_object_int_add(json
, "bgpTableVersion",
10816 json_object_string_add(json
, "bgpLocalRouterId",
10817 inet_ntoa(bgp
->router_id
));
10818 json_object_int_add(json
, "defaultLocPrf",
10819 bgp
->default_local_pref
);
10820 json_object_int_add(json
, "localAS", bgp
->as
);
10821 json_object_object_add(json
, "bgpStatusCodes",
10823 json_object_object_add(json
, "bgpOriginCodes",
10825 json_object_string_add(
10826 json
, "bgpOriginatingDefaultNetwork",
10827 (afi
== AFI_IP
) ? "0.0.0.0/0" : "::/0");
10829 vty_out(vty
, "BGP table version is %" PRIu64
10830 ", local router ID is %s, vrf id ",
10831 table
->version
, inet_ntoa(bgp
->router_id
));
10832 if (bgp
->vrf_id
== VRF_UNKNOWN
)
10833 vty_out(vty
, "%s", VRFID_NONE_STR
);
10835 vty_out(vty
, "%u", bgp
->vrf_id
);
10836 vty_out(vty
, "\n");
10837 vty_out(vty
, "Default local pref %u, ",
10838 bgp
->default_local_pref
);
10839 vty_out(vty
, "local AS %u\n", bgp
->as
);
10840 vty_out(vty
, BGP_SHOW_SCODE_HEADER
);
10841 vty_out(vty
, BGP_SHOW_NCODE_HEADER
);
10842 vty_out(vty
, BGP_SHOW_OCODE_HEADER
);
10844 vty_out(vty
, "Originating default network %s\n\n",
10845 (afi
== AFI_IP
) ? "0.0.0.0/0" : "::/0");
10850 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
)) {
10851 if (type
== bgp_show_adj_route_received
10852 || type
== bgp_show_adj_route_filtered
) {
10853 for (ain
= rn
->adj_in
; ain
; ain
= ain
->next
) {
10854 if (ain
->peer
!= peer
|| !ain
->attr
)
10859 json_object_int_add(
10860 json
, "bgpTableVersion",
10862 json_object_string_add(
10864 "bgpLocalRouterId",
10867 json_object_int_add(json
,
10869 bgp
->default_local_pref
);
10870 json_object_int_add(json
,
10871 "localAS", bgp
->as
);
10872 json_object_object_add(
10873 json
, "bgpStatusCodes",
10875 json_object_object_add(
10876 json
, "bgpOriginCodes",
10880 "BGP table version is 0, local router ID is %s, vrf id ",
10883 if (bgp
->vrf_id
== VRF_UNKNOWN
)
10889 vty_out(vty
, "\n");
10891 "Default local pref %u, ",
10892 bgp
->default_local_pref
);
10893 vty_out(vty
, "local AS %u\n",
10896 BGP_SHOW_SCODE_HEADER
);
10898 BGP_SHOW_NCODE_HEADER
);
10900 BGP_SHOW_OCODE_HEADER
);
10906 vty_out(vty
, BGP_SHOW_HEADER
);
10910 bgp_attr_dup(&attr
, ain
->attr
);
10911 route_filtered
= false;
10913 /* Filter prefix using distribute list,
10914 * filter list or prefix list
10916 if ((bgp_input_filter(peer
, &rn
->p
, &attr
, afi
,
10917 safi
)) == FILTER_DENY
)
10918 route_filtered
= true;
10920 /* Filter prefix using route-map */
10921 ret
= bgp_input_modifier(peer
, &rn
->p
, &attr
,
10922 afi
, safi
, rmap_name
);
10924 if (type
== bgp_show_adj_route_filtered
&&
10925 !route_filtered
&& ret
!= RMAP_DENY
) {
10926 bgp_attr_undup(&attr
, ain
->attr
);
10930 if (type
== bgp_show_adj_route_received
&&
10931 (route_filtered
|| ret
== RMAP_DENY
))
10934 route_vty_out_tmp(vty
, &rn
->p
, &attr
, safi
,
10935 use_json
, json_ar
);
10936 bgp_attr_undup(&attr
, ain
->attr
);
10939 } else if (type
== bgp_show_adj_route_advertised
) {
10940 RB_FOREACH (adj
, bgp_adj_out_rb
, &rn
->adj_out
)
10941 SUBGRP_FOREACH_PEER (adj
->subgroup
, paf
) {
10942 if (paf
->peer
!= peer
|| !adj
->attr
)
10947 json_object_int_add(
10951 json_object_string_add(
10953 "bgpLocalRouterId",
10956 json_object_int_add(
10957 json
, "defaultLocPrf",
10958 bgp
->default_local_pref
10960 json_object_int_add(
10963 json_object_object_add(
10967 json_object_object_add(
10973 "BGP table version is %" PRIu64
10974 ", local router ID is %s, vrf id ",
10987 vty_out(vty
, "\n");
10989 "Default local pref %u, ",
10990 bgp
->default_local_pref
10996 BGP_SHOW_SCODE_HEADER
);
10998 BGP_SHOW_NCODE_HEADER
);
11000 BGP_SHOW_OCODE_HEADER
);
11011 bgp_attr_dup(&attr
, adj
->attr
);
11012 ret
= bgp_output_modifier(
11013 peer
, &rn
->p
, &attr
, afi
, safi
,
11016 if (ret
!= RMAP_DENY
) {
11017 route_vty_out_tmp(vty
, &rn
->p
,
11026 bgp_attr_undup(&attr
, adj
->attr
);
11032 json_object_object_add(json
, "advertisedRoutes", json_ar
);
11033 json_object_int_add(json
, "totalPrefixCounter", output_count
);
11034 json_object_int_add(json
, "filteredPrefixCounter",
11037 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
11038 json
, JSON_C_TO_STRING_PRETTY
));
11039 json_object_free(json
);
11040 } else if (output_count
> 0) {
11041 if (filtered_count
> 0)
11043 "\nTotal number of prefixes %ld (%ld filtered)\n",
11044 output_count
, filtered_count
);
11046 vty_out(vty
, "\nTotal number of prefixes %ld\n",
11051 static int peer_adj_routes(struct vty
*vty
, struct peer
*peer
, afi_t afi
,
11052 safi_t safi
, enum bgp_show_adj_route_type type
,
11053 const char *rmap_name
, bool use_json
)
11055 json_object
*json
= NULL
;
11058 json
= json_object_new_object();
11060 if (!peer
|| !peer
->afc
[afi
][safi
]) {
11062 json_object_string_add(
11064 "No such neighbor or address family");
11065 vty_out(vty
, "%s\n", json_object_to_json_string(json
));
11066 json_object_free(json
);
11068 vty_out(vty
, "%% No such neighbor or address family\n");
11070 return CMD_WARNING
;
11073 if ((type
== bgp_show_adj_route_received
11074 || type
== bgp_show_adj_route_filtered
)
11075 && !CHECK_FLAG(peer
->af_flags
[afi
][safi
],
11076 PEER_FLAG_SOFT_RECONFIG
)) {
11078 json_object_string_add(
11080 "Inbound soft reconfiguration not enabled");
11081 vty_out(vty
, "%s\n", json_object_to_json_string(json
));
11082 json_object_free(json
);
11085 "%% Inbound soft reconfiguration not enabled\n");
11087 return CMD_WARNING
;
11090 show_adj_route(vty
, peer
, afi
, safi
, type
, rmap_name
, use_json
, json
);
11092 return CMD_SUCCESS
;
11095 DEFUN (show_ip_bgp_instance_neighbor_advertised_route
,
11096 show_ip_bgp_instance_neighbor_advertised_route_cmd
,
11097 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]] "
11098 "neighbors <A.B.C.D|X:X::X:X|WORD> <advertised-routes|received-routes|filtered-routes> [route-map WORD] [json]",
11102 BGP_INSTANCE_HELP_STR
11104 BGP_SAFI_WITH_LABEL_HELP_STR
11105 "Detailed information on TCP and BGP neighbor connections\n"
11106 "Neighbor to display information about\n"
11107 "Neighbor to display information about\n"
11108 "Neighbor on BGP configured interface\n"
11109 "Display the routes advertised to a BGP neighbor\n"
11110 "Display the received routes from neighbor\n"
11111 "Display the filtered routes received from neighbor\n"
11112 "Route-map to modify the attributes\n"
11113 "Name of the route map\n"
11116 afi_t afi
= AFI_IP6
;
11117 safi_t safi
= SAFI_UNICAST
;
11118 char *rmap_name
= NULL
;
11119 char *peerstr
= NULL
;
11120 struct bgp
*bgp
= NULL
;
11122 enum bgp_show_adj_route_type type
= bgp_show_adj_route_advertised
;
11124 bool uj
= use_json(argc
, argv
);
11129 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
11132 return CMD_WARNING
;
11134 /* neighbors <A.B.C.D|X:X::X:X|WORD> */
11135 argv_find(argv
, argc
, "neighbors", &idx
);
11136 peerstr
= argv
[++idx
]->arg
;
11138 peer
= peer_lookup_in_view(vty
, bgp
, peerstr
, uj
);
11140 return CMD_WARNING
;
11142 if (argv_find(argv
, argc
, "advertised-routes", &idx
))
11143 type
= bgp_show_adj_route_advertised
;
11144 else if (argv_find(argv
, argc
, "received-routes", &idx
))
11145 type
= bgp_show_adj_route_received
;
11146 else if (argv_find(argv
, argc
, "filtered-routes", &idx
))
11147 type
= bgp_show_adj_route_filtered
;
11149 if (argv_find(argv
, argc
, "route-map", &idx
))
11150 rmap_name
= argv
[++idx
]->arg
;
11152 return peer_adj_routes(vty
, peer
, afi
, safi
, type
, rmap_name
, uj
);
11155 DEFUN (show_ip_bgp_neighbor_received_prefix_filter
,
11156 show_ip_bgp_neighbor_received_prefix_filter_cmd
,
11157 "show [ip] bgp [<ipv4|ipv6> [unicast]] neighbors <A.B.C.D|X:X::X:X|WORD> received prefix-filter [json]",
11163 "Address Family modifier\n"
11164 "Detailed information on TCP and BGP neighbor connections\n"
11165 "Neighbor to display information about\n"
11166 "Neighbor to display information about\n"
11167 "Neighbor on BGP configured interface\n"
11168 "Display information received from a BGP neighbor\n"
11169 "Display the prefixlist filter\n"
11172 afi_t afi
= AFI_IP6
;
11173 safi_t safi
= SAFI_UNICAST
;
11174 char *peerstr
= NULL
;
11177 union sockunion su
;
11183 /* show [ip] bgp */
11184 if (argv_find(argv
, argc
, "ip", &idx
))
11186 /* [<ipv4|ipv6> [unicast]] */
11187 if (argv_find(argv
, argc
, "ipv4", &idx
))
11189 if (argv_find(argv
, argc
, "ipv6", &idx
))
11191 /* neighbors <A.B.C.D|X:X::X:X|WORD> */
11192 argv_find(argv
, argc
, "neighbors", &idx
);
11193 peerstr
= argv
[++idx
]->arg
;
11195 bool uj
= use_json(argc
, argv
);
11197 ret
= str2sockunion(peerstr
, &su
);
11199 peer
= peer_lookup_by_conf_if(NULL
, peerstr
);
11202 vty_out(vty
, "{}\n");
11205 "%% Malformed address or name: %s\n",
11207 return CMD_WARNING
;
11210 peer
= peer_lookup(NULL
, &su
);
11213 vty_out(vty
, "{}\n");
11215 vty_out(vty
, "No peer\n");
11216 return CMD_WARNING
;
11220 sprintf(name
, "%s.%d.%d", peer
->host
, afi
, safi
);
11221 count
= prefix_bgp_show_prefix_list(NULL
, afi
, name
, uj
);
11224 vty_out(vty
, "Address Family: %s\n",
11225 afi_safi_print(afi
, safi
));
11226 prefix_bgp_show_prefix_list(vty
, afi
, name
, uj
);
11229 vty_out(vty
, "{}\n");
11231 vty_out(vty
, "No functional output\n");
11234 return CMD_SUCCESS
;
11237 static int bgp_show_neighbor_route(struct vty
*vty
, struct peer
*peer
,
11238 afi_t afi
, safi_t safi
,
11239 enum bgp_show_type type
, bool use_json
)
11241 /* labeled-unicast routes live in the unicast table */
11242 if (safi
== SAFI_LABELED_UNICAST
)
11243 safi
= SAFI_UNICAST
;
11245 if (!peer
|| !peer
->afc
[afi
][safi
]) {
11247 json_object
*json_no
= NULL
;
11248 json_no
= json_object_new_object();
11249 json_object_string_add(
11250 json_no
, "warning",
11251 "No such neighbor or address family");
11252 vty_out(vty
, "%s\n",
11253 json_object_to_json_string(json_no
));
11254 json_object_free(json_no
);
11256 vty_out(vty
, "%% No such neighbor or address family\n");
11257 return CMD_WARNING
;
11260 return bgp_show(vty
, peer
->bgp
, afi
, safi
, type
, &peer
->su
, use_json
);
11263 DEFUN (show_ip_bgp_flowspec_routes_detailed
,
11264 show_ip_bgp_flowspec_routes_detailed_cmd
,
11265 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" flowspec] detail [json]",
11269 BGP_INSTANCE_HELP_STR
11272 "Detailed information on flowspec entries\n"
11275 afi_t afi
= AFI_IP
;
11276 safi_t safi
= SAFI_UNICAST
;
11277 struct bgp
*bgp
= NULL
;
11279 bool uj
= use_json(argc
, argv
);
11284 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
11287 return CMD_WARNING
;
11289 return bgp_show(vty
, bgp
, afi
, safi
, bgp_show_type_detail
, NULL
, uj
);
11292 DEFUN (show_ip_bgp_neighbor_routes
,
11293 show_ip_bgp_neighbor_routes_cmd
,
11294 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]] "
11295 "neighbors <A.B.C.D|X:X::X:X|WORD> <flap-statistics|dampened-routes|routes> [json]",
11299 BGP_INSTANCE_HELP_STR
11301 BGP_SAFI_WITH_LABEL_HELP_STR
11302 "Detailed information on TCP and BGP neighbor connections\n"
11303 "Neighbor to display information about\n"
11304 "Neighbor to display information about\n"
11305 "Neighbor on BGP configured interface\n"
11306 "Display flap statistics of the routes learned from neighbor\n"
11307 "Display the dampened routes received from neighbor\n"
11308 "Display routes learned from neighbor\n"
11311 char *peerstr
= NULL
;
11312 struct bgp
*bgp
= NULL
;
11313 afi_t afi
= AFI_IP6
;
11314 safi_t safi
= SAFI_UNICAST
;
11316 enum bgp_show_type sh_type
= bgp_show_type_neighbor
;
11318 bool uj
= use_json(argc
, argv
);
11323 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
11326 return CMD_WARNING
;
11328 /* neighbors <A.B.C.D|X:X::X:X|WORD> */
11329 argv_find(argv
, argc
, "neighbors", &idx
);
11330 peerstr
= argv
[++idx
]->arg
;
11332 peer
= peer_lookup_in_view(vty
, bgp
, peerstr
, uj
);
11334 return CMD_WARNING
;
11336 if (argv_find(argv
, argc
, "flap-statistics", &idx
))
11337 sh_type
= bgp_show_type_flap_neighbor
;
11338 else if (argv_find(argv
, argc
, "dampened-routes", &idx
))
11339 sh_type
= bgp_show_type_damp_neighbor
;
11340 else if (argv_find(argv
, argc
, "routes", &idx
))
11341 sh_type
= bgp_show_type_neighbor
;
11343 return bgp_show_neighbor_route(vty
, peer
, afi
, safi
, sh_type
, uj
);
11346 struct bgp_table
*bgp_distance_table
[AFI_MAX
][SAFI_MAX
];
11348 struct bgp_distance
{
11349 /* Distance value for the IP source prefix. */
11352 /* Name of the access-list to be matched. */
11356 DEFUN (show_bgp_afi_vpn_rd_route
,
11357 show_bgp_afi_vpn_rd_route_cmd
,
11358 "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]",
11362 "Address Family modifier\n"
11363 "Display information for a route distinguisher\n"
11364 "Route Distinguisher\n"
11365 "Network in the BGP routing table to display\n"
11366 "Network in the BGP routing table to display\n"
11370 struct prefix_rd prd
;
11371 afi_t afi
= AFI_MAX
;
11374 if (!argv_find_and_parse_afi(argv
, argc
, &idx
, &afi
)) {
11375 vty_out(vty
, "%% Malformed Address Family\n");
11376 return CMD_WARNING
;
11379 ret
= str2prefix_rd(argv
[5]->arg
, &prd
);
11381 vty_out(vty
, "%% Malformed Route Distinguisher\n");
11382 return CMD_WARNING
;
11385 return bgp_show_route(vty
, NULL
, argv
[6]->arg
, afi
, SAFI_MPLS_VPN
, &prd
,
11386 0, BGP_PATH_SHOW_ALL
, use_json(argc
, argv
));
11389 static struct bgp_distance
*bgp_distance_new(void)
11391 return XCALLOC(MTYPE_BGP_DISTANCE
, sizeof(struct bgp_distance
));
11394 static void bgp_distance_free(struct bgp_distance
*bdistance
)
11396 XFREE(MTYPE_BGP_DISTANCE
, bdistance
);
11399 static int bgp_distance_set(struct vty
*vty
, const char *distance_str
,
11400 const char *ip_str
, const char *access_list_str
)
11407 struct bgp_node
*rn
;
11408 struct bgp_distance
*bdistance
;
11410 afi
= bgp_node_afi(vty
);
11411 safi
= bgp_node_safi(vty
);
11413 ret
= str2prefix(ip_str
, &p
);
11415 vty_out(vty
, "Malformed prefix\n");
11416 return CMD_WARNING_CONFIG_FAILED
;
11419 distance
= atoi(distance_str
);
11421 /* Get BGP distance node. */
11422 rn
= bgp_node_get(bgp_distance_table
[afi
][safi
], (struct prefix
*)&p
);
11423 bdistance
= bgp_node_get_bgp_distance_info(rn
);
11425 bgp_unlock_node(rn
);
11427 bdistance
= bgp_distance_new();
11428 bgp_node_set_bgp_distance_info(rn
, bdistance
);
11431 /* Set distance value. */
11432 bdistance
->distance
= distance
;
11434 /* Reset access-list configuration. */
11435 if (bdistance
->access_list
) {
11436 XFREE(MTYPE_AS_LIST
, bdistance
->access_list
);
11437 bdistance
->access_list
= NULL
;
11439 if (access_list_str
)
11440 bdistance
->access_list
=
11441 XSTRDUP(MTYPE_AS_LIST
, access_list_str
);
11443 return CMD_SUCCESS
;
11446 static int bgp_distance_unset(struct vty
*vty
, const char *distance_str
,
11447 const char *ip_str
, const char *access_list_str
)
11454 struct bgp_node
*rn
;
11455 struct bgp_distance
*bdistance
;
11457 afi
= bgp_node_afi(vty
);
11458 safi
= bgp_node_safi(vty
);
11460 ret
= str2prefix(ip_str
, &p
);
11462 vty_out(vty
, "Malformed prefix\n");
11463 return CMD_WARNING_CONFIG_FAILED
;
11466 rn
= bgp_node_lookup(bgp_distance_table
[afi
][safi
],
11467 (struct prefix
*)&p
);
11469 vty_out(vty
, "Can't find specified prefix\n");
11470 return CMD_WARNING_CONFIG_FAILED
;
11473 bdistance
= bgp_node_get_bgp_distance_info(rn
);
11474 distance
= atoi(distance_str
);
11476 if (bdistance
->distance
!= distance
) {
11477 vty_out(vty
, "Distance does not match configured\n");
11478 return CMD_WARNING_CONFIG_FAILED
;
11481 XFREE(MTYPE_AS_LIST
, bdistance
->access_list
);
11482 bgp_distance_free(bdistance
);
11484 bgp_node_set_bgp_path_info(rn
, NULL
);
11485 bgp_unlock_node(rn
);
11486 bgp_unlock_node(rn
);
11488 return CMD_SUCCESS
;
11491 /* Apply BGP information to distance method. */
11492 uint8_t bgp_distance_apply(struct prefix
*p
, struct bgp_path_info
*pinfo
,
11493 afi_t afi
, safi_t safi
, struct bgp
*bgp
)
11495 struct bgp_node
*rn
;
11498 struct bgp_distance
*bdistance
;
11499 struct access_list
*alist
;
11500 struct bgp_static
*bgp_static
;
11505 peer
= pinfo
->peer
;
11507 /* Check source address. */
11508 sockunion2hostprefix(&peer
->su
, &q
);
11509 rn
= bgp_node_match(bgp_distance_table
[afi
][safi
], &q
);
11511 bdistance
= bgp_node_get_bgp_distance_info(rn
);
11512 bgp_unlock_node(rn
);
11514 if (bdistance
->access_list
) {
11515 alist
= access_list_lookup(afi
, bdistance
->access_list
);
11517 && access_list_apply(alist
, p
) == FILTER_PERMIT
)
11518 return bdistance
->distance
;
11520 return bdistance
->distance
;
11523 /* Backdoor check. */
11524 rn
= bgp_node_lookup(bgp
->route
[afi
][safi
], p
);
11526 bgp_static
= bgp_node_get_bgp_static_info(rn
);
11527 bgp_unlock_node(rn
);
11529 if (bgp_static
->backdoor
) {
11530 if (bgp
->distance_local
[afi
][safi
])
11531 return bgp
->distance_local
[afi
][safi
];
11533 return ZEBRA_IBGP_DISTANCE_DEFAULT
;
11537 if (peer
->sort
== BGP_PEER_EBGP
) {
11538 if (bgp
->distance_ebgp
[afi
][safi
])
11539 return bgp
->distance_ebgp
[afi
][safi
];
11540 return ZEBRA_EBGP_DISTANCE_DEFAULT
;
11542 if (bgp
->distance_ibgp
[afi
][safi
])
11543 return bgp
->distance_ibgp
[afi
][safi
];
11544 return ZEBRA_IBGP_DISTANCE_DEFAULT
;
11548 DEFUN (bgp_distance
,
11550 "distance bgp (1-255) (1-255) (1-255)",
11551 "Define an administrative distance\n"
11553 "Distance for routes external to the AS\n"
11554 "Distance for routes internal to the AS\n"
11555 "Distance for local routes\n")
11557 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
11558 int idx_number
= 2;
11559 int idx_number_2
= 3;
11560 int idx_number_3
= 4;
11564 afi
= bgp_node_afi(vty
);
11565 safi
= bgp_node_safi(vty
);
11567 bgp
->distance_ebgp
[afi
][safi
] = atoi(argv
[idx_number
]->arg
);
11568 bgp
->distance_ibgp
[afi
][safi
] = atoi(argv
[idx_number_2
]->arg
);
11569 bgp
->distance_local
[afi
][safi
] = atoi(argv
[idx_number_3
]->arg
);
11570 return CMD_SUCCESS
;
11573 DEFUN (no_bgp_distance
,
11574 no_bgp_distance_cmd
,
11575 "no distance bgp [(1-255) (1-255) (1-255)]",
11577 "Define an administrative distance\n"
11579 "Distance for routes external to the AS\n"
11580 "Distance for routes internal to the AS\n"
11581 "Distance for local routes\n")
11583 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
11587 afi
= bgp_node_afi(vty
);
11588 safi
= bgp_node_safi(vty
);
11590 bgp
->distance_ebgp
[afi
][safi
] = 0;
11591 bgp
->distance_ibgp
[afi
][safi
] = 0;
11592 bgp
->distance_local
[afi
][safi
] = 0;
11593 return CMD_SUCCESS
;
11597 DEFUN (bgp_distance_source
,
11598 bgp_distance_source_cmd
,
11599 "distance (1-255) A.B.C.D/M",
11600 "Define an administrative distance\n"
11601 "Administrative distance\n"
11602 "IP source prefix\n")
11604 int idx_number
= 1;
11605 int idx_ipv4_prefixlen
= 2;
11606 bgp_distance_set(vty
, argv
[idx_number
]->arg
,
11607 argv
[idx_ipv4_prefixlen
]->arg
, NULL
);
11608 return CMD_SUCCESS
;
11611 DEFUN (no_bgp_distance_source
,
11612 no_bgp_distance_source_cmd
,
11613 "no distance (1-255) A.B.C.D/M",
11615 "Define an administrative distance\n"
11616 "Administrative distance\n"
11617 "IP source prefix\n")
11619 int idx_number
= 2;
11620 int idx_ipv4_prefixlen
= 3;
11621 bgp_distance_unset(vty
, argv
[idx_number
]->arg
,
11622 argv
[idx_ipv4_prefixlen
]->arg
, NULL
);
11623 return CMD_SUCCESS
;
11626 DEFUN (bgp_distance_source_access_list
,
11627 bgp_distance_source_access_list_cmd
,
11628 "distance (1-255) A.B.C.D/M WORD",
11629 "Define an administrative distance\n"
11630 "Administrative distance\n"
11631 "IP source prefix\n"
11632 "Access list name\n")
11634 int idx_number
= 1;
11635 int idx_ipv4_prefixlen
= 2;
11637 bgp_distance_set(vty
, argv
[idx_number
]->arg
,
11638 argv
[idx_ipv4_prefixlen
]->arg
, argv
[idx_word
]->arg
);
11639 return CMD_SUCCESS
;
11642 DEFUN (no_bgp_distance_source_access_list
,
11643 no_bgp_distance_source_access_list_cmd
,
11644 "no distance (1-255) A.B.C.D/M WORD",
11646 "Define an administrative distance\n"
11647 "Administrative distance\n"
11648 "IP source prefix\n"
11649 "Access list name\n")
11651 int idx_number
= 2;
11652 int idx_ipv4_prefixlen
= 3;
11654 bgp_distance_unset(vty
, argv
[idx_number
]->arg
,
11655 argv
[idx_ipv4_prefixlen
]->arg
, argv
[idx_word
]->arg
);
11656 return CMD_SUCCESS
;
11659 DEFUN (ipv6_bgp_distance_source
,
11660 ipv6_bgp_distance_source_cmd
,
11661 "distance (1-255) X:X::X:X/M",
11662 "Define an administrative distance\n"
11663 "Administrative distance\n"
11664 "IP source prefix\n")
11666 bgp_distance_set(vty
, argv
[1]->arg
, argv
[2]->arg
, NULL
);
11667 return CMD_SUCCESS
;
11670 DEFUN (no_ipv6_bgp_distance_source
,
11671 no_ipv6_bgp_distance_source_cmd
,
11672 "no distance (1-255) X:X::X:X/M",
11674 "Define an administrative distance\n"
11675 "Administrative distance\n"
11676 "IP source prefix\n")
11678 bgp_distance_unset(vty
, argv
[2]->arg
, argv
[3]->arg
, NULL
);
11679 return CMD_SUCCESS
;
11682 DEFUN (ipv6_bgp_distance_source_access_list
,
11683 ipv6_bgp_distance_source_access_list_cmd
,
11684 "distance (1-255) X:X::X:X/M WORD",
11685 "Define an administrative distance\n"
11686 "Administrative distance\n"
11687 "IP source prefix\n"
11688 "Access list name\n")
11690 bgp_distance_set(vty
, argv
[1]->arg
, argv
[2]->arg
, argv
[3]->arg
);
11691 return CMD_SUCCESS
;
11694 DEFUN (no_ipv6_bgp_distance_source_access_list
,
11695 no_ipv6_bgp_distance_source_access_list_cmd
,
11696 "no distance (1-255) X:X::X:X/M WORD",
11698 "Define an administrative distance\n"
11699 "Administrative distance\n"
11700 "IP source prefix\n"
11701 "Access list name\n")
11703 bgp_distance_unset(vty
, argv
[2]->arg
, argv
[3]->arg
, argv
[4]->arg
);
11704 return CMD_SUCCESS
;
11707 DEFUN (bgp_damp_set
,
11709 "bgp dampening [(1-45) [(1-20000) (1-20000) (1-255)]]",
11710 "BGP Specific commands\n"
11711 "Enable route-flap dampening\n"
11712 "Half-life time for the penalty\n"
11713 "Value to start reusing a route\n"
11714 "Value to start suppressing a route\n"
11715 "Maximum duration to suppress a stable route\n")
11717 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
11718 int idx_half_life
= 2;
11720 int idx_suppress
= 4;
11721 int idx_max_suppress
= 5;
11722 int half
= DEFAULT_HALF_LIFE
* 60;
11723 int reuse
= DEFAULT_REUSE
;
11724 int suppress
= DEFAULT_SUPPRESS
;
11725 int max
= 4 * half
;
11728 half
= atoi(argv
[idx_half_life
]->arg
) * 60;
11729 reuse
= atoi(argv
[idx_reuse
]->arg
);
11730 suppress
= atoi(argv
[idx_suppress
]->arg
);
11731 max
= atoi(argv
[idx_max_suppress
]->arg
) * 60;
11732 } else if (argc
== 3) {
11733 half
= atoi(argv
[idx_half_life
]->arg
) * 60;
11737 if (suppress
< reuse
) {
11739 "Suppress value cannot be less than reuse value \n");
11743 return bgp_damp_enable(bgp
, bgp_node_afi(vty
), bgp_node_safi(vty
), half
,
11744 reuse
, suppress
, max
);
11747 DEFUN (bgp_damp_unset
,
11748 bgp_damp_unset_cmd
,
11749 "no bgp dampening [(1-45) [(1-20000) (1-20000) (1-255)]]",
11751 "BGP Specific commands\n"
11752 "Enable route-flap dampening\n"
11753 "Half-life time for the penalty\n"
11754 "Value to start reusing a route\n"
11755 "Value to start suppressing a route\n"
11756 "Maximum duration to suppress a stable route\n")
11758 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
11759 return bgp_damp_disable(bgp
, bgp_node_afi(vty
), bgp_node_safi(vty
));
11762 /* Display specified route of BGP table. */
11763 static int bgp_clear_damp_route(struct vty
*vty
, const char *view_name
,
11764 const char *ip_str
, afi_t afi
, safi_t safi
,
11765 struct prefix_rd
*prd
, int prefix_check
)
11768 struct prefix match
;
11769 struct bgp_node
*rn
;
11770 struct bgp_node
*rm
;
11771 struct bgp_path_info
*pi
;
11772 struct bgp_path_info
*pi_temp
;
11774 struct bgp_table
*table
;
11776 /* BGP structure lookup. */
11778 bgp
= bgp_lookup_by_name(view_name
);
11780 vty_out(vty
, "%% Can't find BGP instance %s\n",
11782 return CMD_WARNING
;
11785 bgp
= bgp_get_default();
11787 vty_out(vty
, "%% No BGP process is configured\n");
11788 return CMD_WARNING
;
11792 /* Check IP address argument. */
11793 ret
= str2prefix(ip_str
, &match
);
11795 vty_out(vty
, "%% address is malformed\n");
11796 return CMD_WARNING
;
11799 match
.family
= afi2family(afi
);
11801 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_ENCAP
)
11802 || (safi
== SAFI_EVPN
)) {
11803 for (rn
= bgp_table_top(bgp
->rib
[AFI_IP
][safi
]); rn
;
11804 rn
= bgp_route_next(rn
)) {
11805 if (prd
&& memcmp(rn
->p
.u
.val
, prd
->val
, 8) != 0)
11807 table
= bgp_node_get_bgp_table_info(rn
);
11810 if ((rm
= bgp_node_match(table
, &match
)) == NULL
)
11814 || rm
->p
.prefixlen
== match
.prefixlen
) {
11815 pi
= bgp_node_get_bgp_path_info(rm
);
11817 if (pi
->extra
&& pi
->extra
->damp_info
) {
11818 pi_temp
= pi
->next
;
11819 bgp_damp_info_free(
11820 pi
->extra
->damp_info
,
11828 bgp_unlock_node(rm
);
11831 if ((rn
= bgp_node_match(bgp
->rib
[afi
][safi
], &match
))
11834 || rn
->p
.prefixlen
== match
.prefixlen
) {
11835 pi
= bgp_node_get_bgp_path_info(rn
);
11837 if (pi
->extra
&& pi
->extra
->damp_info
) {
11838 pi_temp
= pi
->next
;
11839 bgp_damp_info_free(
11840 pi
->extra
->damp_info
,
11848 bgp_unlock_node(rn
);
11852 return CMD_SUCCESS
;
11855 DEFUN (clear_ip_bgp_dampening
,
11856 clear_ip_bgp_dampening_cmd
,
11857 "clear ip bgp dampening",
11861 "Clear route flap dampening information\n")
11863 bgp_damp_info_clean();
11864 return CMD_SUCCESS
;
11867 DEFUN (clear_ip_bgp_dampening_prefix
,
11868 clear_ip_bgp_dampening_prefix_cmd
,
11869 "clear ip bgp dampening A.B.C.D/M",
11873 "Clear route flap dampening information\n"
11876 int idx_ipv4_prefixlen
= 4;
11877 return bgp_clear_damp_route(vty
, NULL
, argv
[idx_ipv4_prefixlen
]->arg
,
11878 AFI_IP
, SAFI_UNICAST
, NULL
, 1);
11881 DEFUN (clear_ip_bgp_dampening_address
,
11882 clear_ip_bgp_dampening_address_cmd
,
11883 "clear ip bgp dampening A.B.C.D",
11887 "Clear route flap dampening information\n"
11888 "Network to clear damping information\n")
11891 return bgp_clear_damp_route(vty
, NULL
, argv
[idx_ipv4
]->arg
, AFI_IP
,
11892 SAFI_UNICAST
, NULL
, 0);
11895 DEFUN (clear_ip_bgp_dampening_address_mask
,
11896 clear_ip_bgp_dampening_address_mask_cmd
,
11897 "clear ip bgp dampening A.B.C.D A.B.C.D",
11901 "Clear route flap dampening information\n"
11902 "Network to clear damping information\n"
11906 int idx_ipv4_2
= 5;
11908 char prefix_str
[BUFSIZ
];
11910 ret
= netmask_str2prefix_str(argv
[idx_ipv4
]->arg
, argv
[idx_ipv4_2
]->arg
,
11913 vty_out(vty
, "%% Inconsistent address and mask\n");
11914 return CMD_WARNING
;
11917 return bgp_clear_damp_route(vty
, NULL
, prefix_str
, AFI_IP
, SAFI_UNICAST
,
11921 static void show_bgp_peerhash_entry(struct hash_bucket
*bucket
, void *arg
)
11923 struct vty
*vty
= arg
;
11924 struct peer
*peer
= bucket
->data
;
11925 char buf
[SU_ADDRSTRLEN
];
11927 vty_out(vty
, "\tPeer: %s %s\n", peer
->host
,
11928 sockunion2str(&peer
->su
, buf
, sizeof(buf
)));
11931 DEFUN (show_bgp_peerhash
,
11932 show_bgp_peerhash_cmd
,
11933 "show bgp peerhash",
11936 "Display information about the BGP peerhash\n")
11938 struct list
*instances
= bm
->bgp
;
11939 struct listnode
*node
;
11942 for (ALL_LIST_ELEMENTS_RO(instances
, node
, bgp
)) {
11943 vty_out(vty
, "BGP: %s\n", bgp
->name
);
11944 hash_iterate(bgp
->peerhash
, show_bgp_peerhash_entry
,
11948 return CMD_SUCCESS
;
11951 /* also used for encap safi */
11952 static void bgp_config_write_network_vpn(struct vty
*vty
, struct bgp
*bgp
,
11953 afi_t afi
, safi_t safi
)
11955 struct bgp_node
*prn
;
11956 struct bgp_node
*rn
;
11957 struct bgp_table
*table
;
11959 struct prefix_rd
*prd
;
11960 struct bgp_static
*bgp_static
;
11961 mpls_label_t label
;
11962 char buf
[SU_ADDRSTRLEN
];
11963 char rdbuf
[RD_ADDRSTRLEN
];
11965 /* Network configuration. */
11966 for (prn
= bgp_table_top(bgp
->route
[afi
][safi
]); prn
;
11967 prn
= bgp_route_next(prn
)) {
11968 table
= bgp_node_get_bgp_table_info(prn
);
11972 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
)) {
11973 bgp_static
= bgp_node_get_bgp_static_info(rn
);
11974 if (bgp_static
== NULL
)
11978 prd
= (struct prefix_rd
*)&prn
->p
;
11980 /* "network" configuration display. */
11981 prefix_rd2str(prd
, rdbuf
, sizeof(rdbuf
));
11982 label
= decode_label(&bgp_static
->label
);
11984 vty_out(vty
, " network %s/%d rd %s",
11985 inet_ntop(p
->family
, &p
->u
.prefix
, buf
,
11987 p
->prefixlen
, rdbuf
);
11988 if (safi
== SAFI_MPLS_VPN
)
11989 vty_out(vty
, " label %u", label
);
11991 if (bgp_static
->rmap
.name
)
11992 vty_out(vty
, " route-map %s",
11993 bgp_static
->rmap
.name
);
11995 if (bgp_static
->backdoor
)
11996 vty_out(vty
, " backdoor");
11998 vty_out(vty
, "\n");
12003 static void bgp_config_write_network_evpn(struct vty
*vty
, struct bgp
*bgp
,
12004 afi_t afi
, safi_t safi
)
12006 struct bgp_node
*prn
;
12007 struct bgp_node
*rn
;
12008 struct bgp_table
*table
;
12010 struct prefix_rd
*prd
;
12011 struct bgp_static
*bgp_static
;
12012 char buf
[PREFIX_STRLEN
* 2];
12013 char buf2
[SU_ADDRSTRLEN
];
12014 char rdbuf
[RD_ADDRSTRLEN
];
12016 /* Network configuration. */
12017 for (prn
= bgp_table_top(bgp
->route
[afi
][safi
]); prn
;
12018 prn
= bgp_route_next(prn
)) {
12019 table
= bgp_node_get_bgp_table_info(prn
);
12023 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
)) {
12024 bgp_static
= bgp_node_get_bgp_static_info(rn
);
12025 if (bgp_static
== NULL
)
12028 char *macrouter
= NULL
;
12031 if (bgp_static
->router_mac
)
12032 macrouter
= prefix_mac2str(
12033 bgp_static
->router_mac
, NULL
, 0);
12034 if (bgp_static
->eth_s_id
)
12035 esi
= esi2str(bgp_static
->eth_s_id
);
12037 prd
= (struct prefix_rd
*)&prn
->p
;
12039 /* "network" configuration display. */
12040 prefix_rd2str(prd
, rdbuf
, sizeof(rdbuf
));
12041 if (p
->u
.prefix_evpn
.route_type
== 5) {
12042 char local_buf
[PREFIX_STRLEN
];
12043 uint8_t family
= is_evpn_prefix_ipaddr_v4((
12044 struct prefix_evpn
*)p
)
12048 &p
->u
.prefix_evpn
.prefix_addr
.ip
.ip
.addr
,
12049 local_buf
, PREFIX_STRLEN
);
12050 sprintf(buf
, "%s/%u", local_buf
,
12051 p
->u
.prefix_evpn
.prefix_addr
.ip_prefix_length
);
12053 prefix2str(p
, buf
, sizeof(buf
));
12056 if (bgp_static
->gatewayIp
.family
== AF_INET
12057 || bgp_static
->gatewayIp
.family
== AF_INET6
)
12058 inet_ntop(bgp_static
->gatewayIp
.family
,
12059 &bgp_static
->gatewayIp
.u
.prefix
, buf2
,
12062 " network %s rd %s ethtag %u label %u esi %s gwip %s routermac %s\n",
12064 p
->u
.prefix_evpn
.prefix_addr
.eth_tag
,
12065 decode_label(&bgp_static
->label
), esi
, buf2
,
12068 XFREE(MTYPE_TMP
, macrouter
);
12069 XFREE(MTYPE_TMP
, esi
);
12074 /* Configuration of static route announcement and aggregate
12076 void bgp_config_write_network(struct vty
*vty
, struct bgp
*bgp
, afi_t afi
,
12079 struct bgp_node
*rn
;
12081 struct bgp_static
*bgp_static
;
12082 struct bgp_aggregate
*bgp_aggregate
;
12083 char buf
[SU_ADDRSTRLEN
];
12085 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_ENCAP
)) {
12086 bgp_config_write_network_vpn(vty
, bgp
, afi
, safi
);
12090 if (afi
== AFI_L2VPN
&& safi
== SAFI_EVPN
) {
12091 bgp_config_write_network_evpn(vty
, bgp
, afi
, safi
);
12095 /* Network configuration. */
12096 for (rn
= bgp_table_top(bgp
->route
[afi
][safi
]); rn
;
12097 rn
= bgp_route_next(rn
)) {
12098 bgp_static
= bgp_node_get_bgp_static_info(rn
);
12099 if (bgp_static
== NULL
)
12104 /* "network" configuration display. */
12105 if (bgp_option_check(BGP_OPT_CONFIG_CISCO
) && afi
== AFI_IP
) {
12106 uint32_t destination
;
12107 struct in_addr netmask
;
12109 destination
= ntohl(p
->u
.prefix4
.s_addr
);
12110 masklen2ip(p
->prefixlen
, &netmask
);
12111 vty_out(vty
, " network %s",
12112 inet_ntop(p
->family
, &p
->u
.prefix
, buf
,
12115 if ((IN_CLASSC(destination
) && p
->prefixlen
== 24)
12116 || (IN_CLASSB(destination
) && p
->prefixlen
== 16)
12117 || (IN_CLASSA(destination
) && p
->prefixlen
== 8)
12118 || p
->u
.prefix4
.s_addr
== 0) {
12119 /* Natural mask is not display. */
12121 vty_out(vty
, " mask %s", inet_ntoa(netmask
));
12123 vty_out(vty
, " network %s/%d",
12124 inet_ntop(p
->family
, &p
->u
.prefix
, buf
,
12129 if (bgp_static
->label_index
!= BGP_INVALID_LABEL_INDEX
)
12130 vty_out(vty
, " label-index %u",
12131 bgp_static
->label_index
);
12133 if (bgp_static
->rmap
.name
)
12134 vty_out(vty
, " route-map %s", bgp_static
->rmap
.name
);
12136 if (bgp_static
->backdoor
)
12137 vty_out(vty
, " backdoor");
12139 vty_out(vty
, "\n");
12142 /* Aggregate-address configuration. */
12143 for (rn
= bgp_table_top(bgp
->aggregate
[afi
][safi
]); rn
;
12144 rn
= bgp_route_next(rn
)) {
12145 bgp_aggregate
= bgp_node_get_bgp_aggregate_info(rn
);
12146 if (bgp_aggregate
== NULL
)
12151 if (bgp_option_check(BGP_OPT_CONFIG_CISCO
) && afi
== AFI_IP
) {
12152 struct in_addr netmask
;
12154 masklen2ip(p
->prefixlen
, &netmask
);
12155 vty_out(vty
, " aggregate-address %s %s",
12156 inet_ntop(p
->family
, &p
->u
.prefix
, buf
,
12158 inet_ntoa(netmask
));
12160 vty_out(vty
, " aggregate-address %s/%d",
12161 inet_ntop(p
->family
, &p
->u
.prefix
, buf
,
12166 if (bgp_aggregate
->as_set
)
12167 vty_out(vty
, " as-set");
12169 if (bgp_aggregate
->summary_only
)
12170 vty_out(vty
, " summary-only");
12172 vty_out(vty
, "\n");
12176 void bgp_config_write_distance(struct vty
*vty
, struct bgp
*bgp
, afi_t afi
,
12179 struct bgp_node
*rn
;
12180 struct bgp_distance
*bdistance
;
12182 /* Distance configuration. */
12183 if (bgp
->distance_ebgp
[afi
][safi
] && bgp
->distance_ibgp
[afi
][safi
]
12184 && bgp
->distance_local
[afi
][safi
]
12185 && (bgp
->distance_ebgp
[afi
][safi
] != ZEBRA_EBGP_DISTANCE_DEFAULT
12186 || bgp
->distance_ibgp
[afi
][safi
] != ZEBRA_IBGP_DISTANCE_DEFAULT
12187 || bgp
->distance_local
[afi
][safi
]
12188 != ZEBRA_IBGP_DISTANCE_DEFAULT
)) {
12189 vty_out(vty
, " distance bgp %d %d %d\n",
12190 bgp
->distance_ebgp
[afi
][safi
],
12191 bgp
->distance_ibgp
[afi
][safi
],
12192 bgp
->distance_local
[afi
][safi
]);
12195 for (rn
= bgp_table_top(bgp_distance_table
[afi
][safi
]); rn
;
12196 rn
= bgp_route_next(rn
)) {
12197 bdistance
= bgp_node_get_bgp_distance_info(rn
);
12198 if (bdistance
!= NULL
) {
12199 char buf
[PREFIX_STRLEN
];
12201 vty_out(vty
, " distance %d %s %s\n",
12202 bdistance
->distance
,
12203 prefix2str(&rn
->p
, buf
, sizeof(buf
)),
12204 bdistance
->access_list
? bdistance
->access_list
12210 /* Allocate routing table structure and install commands. */
12211 void bgp_route_init(void)
12216 /* Init BGP distance table. */
12217 FOREACH_AFI_SAFI (afi
, safi
)
12218 bgp_distance_table
[afi
][safi
] = bgp_table_init(NULL
, afi
, safi
);
12220 /* IPv4 BGP commands. */
12221 install_element(BGP_NODE
, &bgp_table_map_cmd
);
12222 install_element(BGP_NODE
, &bgp_network_cmd
);
12223 install_element(BGP_NODE
, &no_bgp_table_map_cmd
);
12225 install_element(BGP_NODE
, &aggregate_address_cmd
);
12226 install_element(BGP_NODE
, &aggregate_address_mask_cmd
);
12227 install_element(BGP_NODE
, &no_aggregate_address_cmd
);
12228 install_element(BGP_NODE
, &no_aggregate_address_mask_cmd
);
12230 /* IPv4 unicast configuration. */
12231 install_element(BGP_IPV4_NODE
, &bgp_table_map_cmd
);
12232 install_element(BGP_IPV4_NODE
, &bgp_network_cmd
);
12233 install_element(BGP_IPV4_NODE
, &no_bgp_table_map_cmd
);
12235 install_element(BGP_IPV4_NODE
, &aggregate_address_cmd
);
12236 install_element(BGP_IPV4_NODE
, &aggregate_address_mask_cmd
);
12237 install_element(BGP_IPV4_NODE
, &no_aggregate_address_cmd
);
12238 install_element(BGP_IPV4_NODE
, &no_aggregate_address_mask_cmd
);
12240 /* IPv4 multicast configuration. */
12241 install_element(BGP_IPV4M_NODE
, &bgp_table_map_cmd
);
12242 install_element(BGP_IPV4M_NODE
, &bgp_network_cmd
);
12243 install_element(BGP_IPV4M_NODE
, &no_bgp_table_map_cmd
);
12244 install_element(BGP_IPV4M_NODE
, &aggregate_address_cmd
);
12245 install_element(BGP_IPV4M_NODE
, &aggregate_address_mask_cmd
);
12246 install_element(BGP_IPV4M_NODE
, &no_aggregate_address_cmd
);
12247 install_element(BGP_IPV4M_NODE
, &no_aggregate_address_mask_cmd
);
12249 /* IPv4 labeled-unicast configuration. */
12250 install_element(VIEW_NODE
, &show_ip_bgp_instance_all_cmd
);
12251 install_element(VIEW_NODE
, &show_ip_bgp_cmd
);
12252 install_element(VIEW_NODE
, &show_ip_bgp_json_cmd
);
12253 install_element(VIEW_NODE
, &show_ip_bgp_route_cmd
);
12254 install_element(VIEW_NODE
, &show_ip_bgp_regexp_cmd
);
12256 install_element(VIEW_NODE
,
12257 &show_ip_bgp_instance_neighbor_advertised_route_cmd
);
12258 install_element(VIEW_NODE
, &show_ip_bgp_neighbor_routes_cmd
);
12259 install_element(VIEW_NODE
,
12260 &show_ip_bgp_neighbor_received_prefix_filter_cmd
);
12261 #ifdef KEEP_OLD_VPN_COMMANDS
12262 install_element(VIEW_NODE
, &show_ip_bgp_vpn_all_route_prefix_cmd
);
12263 #endif /* KEEP_OLD_VPN_COMMANDS */
12264 install_element(VIEW_NODE
, &show_bgp_afi_vpn_rd_route_cmd
);
12265 install_element(VIEW_NODE
,
12266 &show_ip_bgp_l2vpn_evpn_all_route_prefix_cmd
);
12268 /* BGP dampening clear commands */
12269 install_element(ENABLE_NODE
, &clear_ip_bgp_dampening_cmd
);
12270 install_element(ENABLE_NODE
, &clear_ip_bgp_dampening_prefix_cmd
);
12272 install_element(ENABLE_NODE
, &clear_ip_bgp_dampening_address_cmd
);
12273 install_element(ENABLE_NODE
, &clear_ip_bgp_dampening_address_mask_cmd
);
12276 install_element(ENABLE_NODE
,
12277 &show_ip_bgp_instance_neighbor_prefix_counts_cmd
);
12278 #ifdef KEEP_OLD_VPN_COMMANDS
12279 install_element(ENABLE_NODE
,
12280 &show_ip_bgp_vpn_neighbor_prefix_counts_cmd
);
12281 #endif /* KEEP_OLD_VPN_COMMANDS */
12283 /* New config IPv6 BGP commands. */
12284 install_element(BGP_IPV6_NODE
, &bgp_table_map_cmd
);
12285 install_element(BGP_IPV6_NODE
, &ipv6_bgp_network_cmd
);
12286 install_element(BGP_IPV6_NODE
, &no_bgp_table_map_cmd
);
12288 install_element(BGP_IPV6_NODE
, &ipv6_aggregate_address_cmd
);
12289 install_element(BGP_IPV6_NODE
, &no_ipv6_aggregate_address_cmd
);
12291 install_element(BGP_IPV6M_NODE
, &ipv6_bgp_network_cmd
);
12293 install_element(BGP_NODE
, &bgp_distance_cmd
);
12294 install_element(BGP_NODE
, &no_bgp_distance_cmd
);
12295 install_element(BGP_NODE
, &bgp_distance_source_cmd
);
12296 install_element(BGP_NODE
, &no_bgp_distance_source_cmd
);
12297 install_element(BGP_NODE
, &bgp_distance_source_access_list_cmd
);
12298 install_element(BGP_NODE
, &no_bgp_distance_source_access_list_cmd
);
12299 install_element(BGP_IPV4_NODE
, &bgp_distance_cmd
);
12300 install_element(BGP_IPV4_NODE
, &no_bgp_distance_cmd
);
12301 install_element(BGP_IPV4_NODE
, &bgp_distance_source_cmd
);
12302 install_element(BGP_IPV4_NODE
, &no_bgp_distance_source_cmd
);
12303 install_element(BGP_IPV4_NODE
, &bgp_distance_source_access_list_cmd
);
12304 install_element(BGP_IPV4_NODE
, &no_bgp_distance_source_access_list_cmd
);
12305 install_element(BGP_IPV4M_NODE
, &bgp_distance_cmd
);
12306 install_element(BGP_IPV4M_NODE
, &no_bgp_distance_cmd
);
12307 install_element(BGP_IPV4M_NODE
, &bgp_distance_source_cmd
);
12308 install_element(BGP_IPV4M_NODE
, &no_bgp_distance_source_cmd
);
12309 install_element(BGP_IPV4M_NODE
, &bgp_distance_source_access_list_cmd
);
12310 install_element(BGP_IPV4M_NODE
,
12311 &no_bgp_distance_source_access_list_cmd
);
12312 install_element(BGP_IPV6_NODE
, &bgp_distance_cmd
);
12313 install_element(BGP_IPV6_NODE
, &no_bgp_distance_cmd
);
12314 install_element(BGP_IPV6_NODE
, &ipv6_bgp_distance_source_cmd
);
12315 install_element(BGP_IPV6_NODE
, &no_ipv6_bgp_distance_source_cmd
);
12316 install_element(BGP_IPV6_NODE
,
12317 &ipv6_bgp_distance_source_access_list_cmd
);
12318 install_element(BGP_IPV6_NODE
,
12319 &no_ipv6_bgp_distance_source_access_list_cmd
);
12320 install_element(BGP_IPV6M_NODE
, &bgp_distance_cmd
);
12321 install_element(BGP_IPV6M_NODE
, &no_bgp_distance_cmd
);
12322 install_element(BGP_IPV6M_NODE
, &ipv6_bgp_distance_source_cmd
);
12323 install_element(BGP_IPV6M_NODE
, &no_ipv6_bgp_distance_source_cmd
);
12324 install_element(BGP_IPV6M_NODE
,
12325 &ipv6_bgp_distance_source_access_list_cmd
);
12326 install_element(BGP_IPV6M_NODE
,
12327 &no_ipv6_bgp_distance_source_access_list_cmd
);
12329 install_element(BGP_NODE
, &bgp_damp_set_cmd
);
12330 install_element(BGP_NODE
, &bgp_damp_unset_cmd
);
12331 install_element(BGP_IPV4_NODE
, &bgp_damp_set_cmd
);
12332 install_element(BGP_IPV4_NODE
, &bgp_damp_unset_cmd
);
12334 /* IPv4 Multicast Mode */
12335 install_element(BGP_IPV4M_NODE
, &bgp_damp_set_cmd
);
12336 install_element(BGP_IPV4M_NODE
, &bgp_damp_unset_cmd
);
12338 /* Large Communities */
12339 install_element(VIEW_NODE
, &show_ip_bgp_large_community_list_cmd
);
12340 install_element(VIEW_NODE
, &show_ip_bgp_large_community_cmd
);
12342 /* show bgp ipv4 flowspec detailed */
12343 install_element(VIEW_NODE
, &show_ip_bgp_flowspec_routes_detailed_cmd
);
12345 install_element(VIEW_NODE
, &show_bgp_peerhash_cmd
);
12348 void bgp_route_finish(void)
12353 FOREACH_AFI_SAFI (afi
, safi
) {
12354 bgp_table_unlock(bgp_distance_table
[afi
][safi
]);
12355 bgp_distance_table
[afi
][safi
] = NULL
;