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
, " } ");
9018 /* No route is displayed */
9019 if (output_count
== 0) {
9020 if (type
== bgp_show_type_normal
)
9022 "No BGP prefixes displayed, %ld exist\n",
9026 "\nDisplayed %ld routes and %ld total paths\n",
9027 output_count
, total_count
);
9034 int bgp_show_table_rd(struct vty
*vty
, struct bgp
*bgp
, safi_t safi
,
9035 struct bgp_table
*table
, struct prefix_rd
*prd_match
,
9036 enum bgp_show_type type
, void *output_arg
, bool use_json
)
9038 struct bgp_node
*rn
, *next
;
9039 unsigned long output_cum
= 0;
9040 unsigned long total_cum
= 0;
9041 unsigned long json_header_depth
= 0;
9042 struct bgp_table
*itable
;
9045 show_msg
= (!use_json
&& type
== bgp_show_type_normal
);
9047 for (rn
= bgp_table_top(table
); rn
; rn
= next
) {
9048 next
= bgp_route_next(rn
);
9049 if (prd_match
&& memcmp(rn
->p
.u
.val
, prd_match
->val
, 8) != 0)
9052 itable
= bgp_node_get_bgp_table_info(rn
);
9053 if (itable
!= NULL
) {
9054 struct prefix_rd prd
;
9055 char rd
[RD_ADDRSTRLEN
];
9057 memcpy(&prd
, &(rn
->p
), sizeof(struct prefix_rd
));
9058 prefix_rd2str(&prd
, rd
, sizeof(rd
));
9059 bgp_show_table(vty
, bgp
, safi
, itable
, type
, output_arg
,
9060 use_json
, rd
, next
== NULL
, &output_cum
,
9061 &total_cum
, &json_header_depth
);
9067 if (output_cum
== 0)
9068 vty_out(vty
, "No BGP prefixes displayed, %ld exist\n",
9072 "\nDisplayed %ld routes and %ld total paths\n",
9073 output_cum
, total_cum
);
9077 static int bgp_show(struct vty
*vty
, struct bgp
*bgp
, afi_t afi
, safi_t safi
,
9078 enum bgp_show_type type
, void *output_arg
, bool use_json
)
9080 struct bgp_table
*table
;
9081 unsigned long json_header_depth
= 0;
9084 bgp
= bgp_get_default();
9089 vty_out(vty
, "No BGP process is configured\n");
9091 vty_out(vty
, "{}\n");
9095 table
= bgp
->rib
[afi
][safi
];
9096 /* use MPLS and ENCAP specific shows until they are merged */
9097 if (safi
== SAFI_MPLS_VPN
) {
9098 return bgp_show_table_rd(vty
, bgp
, safi
, table
, NULL
, type
,
9099 output_arg
, use_json
);
9102 if (safi
== SAFI_FLOWSPEC
&& type
== bgp_show_type_detail
) {
9103 return bgp_show_table_flowspec(vty
, bgp
, afi
, table
, type
,
9104 output_arg
, use_json
,
9107 /* labeled-unicast routes live in the unicast table */
9108 else if (safi
== SAFI_LABELED_UNICAST
)
9109 safi
= SAFI_UNICAST
;
9111 return bgp_show_table(vty
, bgp
, safi
, table
, type
, output_arg
, use_json
,
9112 NULL
, 1, NULL
, NULL
, &json_header_depth
);
9115 static void bgp_show_all_instances_routes_vty(struct vty
*vty
, afi_t afi
,
9116 safi_t safi
, bool use_json
)
9118 struct listnode
*node
, *nnode
;
9121 bool route_output
= false;
9124 vty_out(vty
, "{\n");
9126 for (ALL_LIST_ELEMENTS(bm
->bgp
, node
, nnode
, bgp
)) {
9127 route_output
= true;
9130 vty_out(vty
, ",\n");
9134 vty_out(vty
, "\"%s\":",
9135 (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)
9139 vty_out(vty
, "\nInstance %s:\n",
9140 (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)
9144 bgp_show(vty
, bgp
, afi
, safi
, bgp_show_type_normal
, NULL
,
9149 vty_out(vty
, "}\n");
9150 else if (!route_output
)
9151 vty_out(vty
, "%% BGP instance not found\n");
9154 /* Header of detailed BGP route information */
9155 void route_vty_out_detail_header(struct vty
*vty
, struct bgp
*bgp
,
9156 struct bgp_node
*rn
, struct prefix_rd
*prd
,
9157 afi_t afi
, safi_t safi
, json_object
*json
)
9159 struct bgp_path_info
*pi
;
9162 struct listnode
*node
, *nnode
;
9163 char buf1
[RD_ADDRSTRLEN
];
9164 char buf2
[INET6_ADDRSTRLEN
];
9165 char buf3
[EVPN_ROUTE_STRLEN
];
9166 char prefix_str
[BUFSIZ
];
9171 int route_filter_translated_v4
= 0;
9172 int route_filter_v4
= 0;
9173 int route_filter_translated_v6
= 0;
9174 int route_filter_v6
= 0;
9177 int accept_own_nexthop
= 0;
9180 int no_advertise
= 0;
9184 int has_valid_label
= 0;
9185 mpls_label_t label
= 0;
9186 json_object
*json_adv_to
= NULL
;
9189 has_valid_label
= bgp_is_valid_label(&rn
->local_label
);
9191 if (has_valid_label
)
9192 label
= label_pton(&rn
->local_label
);
9195 if (has_valid_label
)
9196 json_object_int_add(json
, "localLabel", label
);
9198 json_object_string_add(
9200 prefix2str(p
, prefix_str
, sizeof(prefix_str
)));
9202 if (safi
== SAFI_EVPN
)
9203 vty_out(vty
, "BGP routing table entry for %s%s%s\n",
9204 prd
? prefix_rd2str(prd
, buf1
, sizeof(buf1
))
9207 bgp_evpn_route2str((struct prefix_evpn
*)p
,
9208 buf3
, sizeof(buf3
)));
9210 vty_out(vty
, "BGP routing table entry for %s%s%s/%d\n",
9211 ((safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
)
9212 ? prefix_rd2str(prd
, buf1
,
9215 safi
== SAFI_MPLS_VPN
? ":" : "",
9216 inet_ntop(p
->family
, &p
->u
.prefix
, buf2
,
9220 if (has_valid_label
)
9221 vty_out(vty
, "Local label: %d\n", label
);
9222 if (bgp_labeled_safi(safi
) && safi
!= SAFI_EVPN
)
9223 vty_out(vty
, "not allocated\n");
9226 for (pi
= bgp_node_get_bgp_path_info(rn
); pi
; pi
= pi
->next
) {
9228 if (CHECK_FLAG(pi
->flags
, BGP_PATH_SELECTED
)) {
9230 if (pi
->extra
&& pi
->extra
->suppress
)
9233 if (pi
->attr
->community
== NULL
)
9236 no_advertise
+= community_include(
9237 pi
->attr
->community
, COMMUNITY_NO_ADVERTISE
);
9238 no_export
+= community_include(pi
->attr
->community
,
9239 COMMUNITY_NO_EXPORT
);
9240 local_as
+= community_include(pi
->attr
->community
,
9241 COMMUNITY_LOCAL_AS
);
9242 accept_own
+= community_include(pi
->attr
->community
,
9243 COMMUNITY_ACCEPT_OWN
);
9244 route_filter_translated_v4
+= community_include(
9245 pi
->attr
->community
,
9246 COMMUNITY_ROUTE_FILTER_TRANSLATED_v4
);
9247 route_filter_translated_v6
+= community_include(
9248 pi
->attr
->community
,
9249 COMMUNITY_ROUTE_FILTER_TRANSLATED_v6
);
9250 route_filter_v4
+= community_include(
9251 pi
->attr
->community
, COMMUNITY_ROUTE_FILTER_v4
);
9252 route_filter_v6
+= community_include(
9253 pi
->attr
->community
, COMMUNITY_ROUTE_FILTER_v6
);
9254 llgr_stale
+= community_include(pi
->attr
->community
,
9255 COMMUNITY_LLGR_STALE
);
9256 no_llgr
+= community_include(pi
->attr
->community
,
9258 accept_own_nexthop
+=
9259 community_include(pi
->attr
->community
,
9260 COMMUNITY_ACCEPT_OWN_NEXTHOP
);
9261 blackhole
+= community_include(pi
->attr
->community
,
9262 COMMUNITY_BLACKHOLE
);
9263 no_peer
+= community_include(pi
->attr
->community
,
9269 vty_out(vty
, "Paths: (%d available", count
);
9271 vty_out(vty
, ", best #%d", best
);
9272 if (safi
== SAFI_UNICAST
)
9273 vty_out(vty
, ", table %s",
9275 == BGP_INSTANCE_TYPE_DEFAULT
)
9279 vty_out(vty
, ", no best path");
9283 ", accept own local route exported and imported in different VRF");
9284 else if (route_filter_translated_v4
)
9286 ", mark translated RTs for VPNv4 route filtering");
9287 else if (route_filter_v4
)
9289 ", attach RT as-is for VPNv4 route filtering");
9290 else if (route_filter_translated_v6
)
9292 ", mark translated RTs for VPNv6 route filtering");
9293 else if (route_filter_v6
)
9295 ", attach RT as-is for VPNv6 route filtering");
9296 else if (llgr_stale
)
9298 ", mark routes to be retained for a longer time. Requeres support for Long-lived BGP Graceful Restart");
9301 ", mark routes to not be treated according to Long-lived BGP Graceful Restart operations");
9302 else if (accept_own_nexthop
)
9304 ", accept local nexthop");
9306 vty_out(vty
, ", inform peer to blackhole prefix");
9308 vty_out(vty
, ", not advertised to EBGP peer");
9309 else if (no_advertise
)
9310 vty_out(vty
, ", not advertised to any peer");
9312 vty_out(vty
, ", not advertised outside local AS");
9315 ", inform EBGP peer not to advertise to their EBGP peers");
9319 ", Advertisements suppressed by an aggregate.");
9320 vty_out(vty
, ")\n");
9323 /* If we are not using addpath then we can display Advertised to and
9325 * show what peers we advertised the bestpath to. If we are using
9327 * though then we must display Advertised to on a path-by-path basis. */
9328 if (!bgp_addpath_is_addpath_used(&bgp
->tx_addpath
, afi
, safi
)) {
9329 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
9330 if (bgp_adj_out_lookup(peer
, rn
, 0)) {
9331 if (json
&& !json_adv_to
)
9332 json_adv_to
= json_object_new_object();
9334 route_vty_out_advertised_to(
9336 " Advertised to non peer-group peers:\n ",
9343 json_object_object_add(json
, "advertisedTo",
9348 vty_out(vty
, " Not advertised to any peer");
9354 /* Display specified route of BGP table. */
9355 static int bgp_show_route_in_table(struct vty
*vty
, struct bgp
*bgp
,
9356 struct bgp_table
*rib
, const char *ip_str
,
9357 afi_t afi
, safi_t safi
,
9358 struct prefix_rd
*prd
, int prefix_check
,
9359 enum bgp_path_type pathtype
, bool use_json
)
9364 struct prefix match
;
9365 struct bgp_node
*rn
;
9366 struct bgp_node
*rm
;
9367 struct bgp_path_info
*pi
;
9368 struct bgp_table
*table
;
9369 json_object
*json
= NULL
;
9370 json_object
*json_paths
= NULL
;
9372 /* Check IP address argument. */
9373 ret
= str2prefix(ip_str
, &match
);
9375 vty_out(vty
, "address is malformed\n");
9379 match
.family
= afi2family(afi
);
9382 json
= json_object_new_object();
9383 json_paths
= json_object_new_array();
9386 if (safi
== SAFI_MPLS_VPN
|| safi
== SAFI_ENCAP
|| safi
== SAFI_EVPN
) {
9387 for (rn
= bgp_table_top(rib
); rn
; rn
= bgp_route_next(rn
)) {
9388 if (prd
&& memcmp(rn
->p
.u
.val
, prd
->val
, 8) != 0)
9390 table
= bgp_node_get_bgp_table_info(rn
);
9396 if ((rm
= bgp_node_match(table
, &match
)) == NULL
)
9400 && rm
->p
.prefixlen
!= match
.prefixlen
) {
9401 bgp_unlock_node(rm
);
9405 for (pi
= bgp_node_get_bgp_path_info(rm
); pi
;
9408 route_vty_out_detail_header(
9410 (struct prefix_rd
*)&rn
->p
,
9411 AFI_IP
, safi
, json
);
9416 if (pathtype
== BGP_PATH_SHOW_ALL
9417 || (pathtype
== BGP_PATH_SHOW_BESTPATH
9418 && CHECK_FLAG(pi
->flags
,
9420 || (pathtype
== BGP_PATH_SHOW_MULTIPATH
9421 && (CHECK_FLAG(pi
->flags
,
9423 || CHECK_FLAG(pi
->flags
,
9424 BGP_PATH_SELECTED
))))
9425 route_vty_out_detail(vty
, bgp
, &rm
->p
,
9430 bgp_unlock_node(rm
);
9432 } else if (safi
== SAFI_FLOWSPEC
) {
9433 display
= bgp_flowspec_display_match_per_ip(afi
, rib
,
9434 &match
, prefix_check
,
9441 if ((rn
= bgp_node_match(rib
, &match
)) != NULL
) {
9443 || rn
->p
.prefixlen
== match
.prefixlen
) {
9444 for (pi
= bgp_node_get_bgp_path_info(rn
); pi
;
9447 route_vty_out_detail_header(
9448 vty
, bgp
, rn
, NULL
, afi
,
9454 if (pathtype
== BGP_PATH_SHOW_ALL
9456 == BGP_PATH_SHOW_BESTPATH
9461 == BGP_PATH_SHOW_MULTIPATH
9467 BGP_PATH_SELECTED
))))
9468 route_vty_out_detail(
9469 vty
, bgp
, &rn
->p
, pi
,
9470 afi
, safi
, json_paths
);
9474 bgp_unlock_node(rn
);
9480 json_object_object_add(json
, "paths", json_paths
);
9482 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
9483 json
, JSON_C_TO_STRING_PRETTY
));
9484 json_object_free(json
);
9487 vty_out(vty
, "%% Network not in table\n");
9495 /* Display specified route of Main RIB */
9496 static int bgp_show_route(struct vty
*vty
, struct bgp
*bgp
, const char *ip_str
,
9497 afi_t afi
, safi_t safi
, struct prefix_rd
*prd
,
9498 int prefix_check
, enum bgp_path_type pathtype
,
9502 bgp
= bgp_get_default();
9505 vty_out(vty
, "No BGP process is configured\n");
9507 vty_out(vty
, "{}\n");
9512 /* labeled-unicast routes live in the unicast table */
9513 if (safi
== SAFI_LABELED_UNICAST
)
9514 safi
= SAFI_UNICAST
;
9516 return bgp_show_route_in_table(vty
, bgp
, bgp
->rib
[afi
][safi
], ip_str
,
9517 afi
, safi
, prd
, prefix_check
, pathtype
,
9521 static int bgp_show_lcommunity(struct vty
*vty
, struct bgp
*bgp
, int argc
,
9522 struct cmd_token
**argv
, afi_t afi
, safi_t safi
,
9525 struct lcommunity
*lcom
;
9531 b
= buffer_new(1024);
9532 for (i
= 0; i
< argc
; i
++) {
9534 buffer_putc(b
, ' ');
9536 if (strmatch(argv
[i
]->text
, "AA:BB:CC")) {
9538 buffer_putstr(b
, argv
[i
]->arg
);
9542 buffer_putc(b
, '\0');
9544 str
= buffer_getstr(b
);
9547 lcom
= lcommunity_str2com(str
);
9548 XFREE(MTYPE_TMP
, str
);
9550 vty_out(vty
, "%% Large-community malformed\n");
9554 return bgp_show(vty
, bgp
, afi
, safi
, bgp_show_type_lcommunity
, lcom
,
9558 static int bgp_show_lcommunity_list(struct vty
*vty
, struct bgp
*bgp
,
9559 const char *lcom
, afi_t afi
, safi_t safi
,
9562 struct community_list
*list
;
9564 list
= community_list_lookup(bgp_clist
, lcom
, 0,
9565 LARGE_COMMUNITY_LIST_MASTER
);
9567 vty_out(vty
, "%% %s is not a valid large-community-list name\n",
9572 return bgp_show(vty
, bgp
, afi
, safi
, bgp_show_type_lcommunity_list
,
9576 DEFUN (show_ip_bgp_large_community_list
,
9577 show_ip_bgp_large_community_list_cmd
,
9578 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]] large-community-list <(1-500)|WORD> [json]",
9582 BGP_INSTANCE_HELP_STR
9584 BGP_SAFI_WITH_LABEL_HELP_STR
9585 "Display routes matching the large-community-list\n"
9586 "large-community-list number\n"
9587 "large-community-list name\n"
9591 afi_t afi
= AFI_IP6
;
9592 safi_t safi
= SAFI_UNICAST
;
9595 if (argv_find(argv
, argc
, "ip", &idx
))
9597 if (argv_find(argv
, argc
, "view", &idx
)
9598 || argv_find(argv
, argc
, "vrf", &idx
))
9599 vrf
= argv
[++idx
]->arg
;
9600 if (argv_find(argv
, argc
, "ipv4", &idx
)
9601 || argv_find(argv
, argc
, "ipv6", &idx
)) {
9602 afi
= strmatch(argv
[idx
]->text
, "ipv6") ? AFI_IP6
: AFI_IP
;
9603 if (argv_find(argv
, argc
, "unicast", &idx
)
9604 || argv_find(argv
, argc
, "multicast", &idx
))
9605 safi
= bgp_vty_safi_from_str(argv
[idx
]->text
);
9608 bool uj
= use_json(argc
, argv
);
9610 struct bgp
*bgp
= bgp_lookup_by_name(vrf
);
9612 vty_out(vty
, "Can't find BGP instance %s\n", vrf
);
9616 argv_find(argv
, argc
, "large-community-list", &idx
);
9617 return bgp_show_lcommunity_list(vty
, bgp
, argv
[idx
+ 1]->arg
, afi
, safi
,
9620 DEFUN (show_ip_bgp_large_community
,
9621 show_ip_bgp_large_community_cmd
,
9622 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]] large-community [AA:BB:CC] [json]",
9626 BGP_INSTANCE_HELP_STR
9628 BGP_SAFI_WITH_LABEL_HELP_STR
9629 "Display routes matching the large-communities\n"
9630 "List of large-community numbers\n"
9634 afi_t afi
= AFI_IP6
;
9635 safi_t safi
= SAFI_UNICAST
;
9638 if (argv_find(argv
, argc
, "ip", &idx
))
9640 if (argv_find(argv
, argc
, "view", &idx
)
9641 || argv_find(argv
, argc
, "vrf", &idx
))
9642 vrf
= argv
[++idx
]->arg
;
9643 if (argv_find(argv
, argc
, "ipv4", &idx
)
9644 || argv_find(argv
, argc
, "ipv6", &idx
)) {
9645 afi
= strmatch(argv
[idx
]->text
, "ipv6") ? AFI_IP6
: AFI_IP
;
9646 if (argv_find(argv
, argc
, "unicast", &idx
)
9647 || argv_find(argv
, argc
, "multicast", &idx
))
9648 safi
= bgp_vty_safi_from_str(argv
[idx
]->text
);
9651 bool uj
= use_json(argc
, argv
);
9653 struct bgp
*bgp
= bgp_lookup_by_name(vrf
);
9655 vty_out(vty
, "Can't find BGP instance %s\n", vrf
);
9659 if (argv_find(argv
, argc
, "AA:BB:CC", &idx
))
9660 return bgp_show_lcommunity(vty
, bgp
, argc
, argv
, afi
, safi
, uj
);
9662 return bgp_show(vty
, bgp
, afi
, safi
,
9663 bgp_show_type_lcommunity_all
, NULL
, uj
);
9666 static int bgp_table_stats(struct vty
*vty
, struct bgp
*bgp
, afi_t afi
,
9670 /* BGP route print out function without JSON */
9673 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]]\
9674 <dampening <parameters>\
9679 |community-list <(1-500)|WORD> [exact-match]\
9680 |A.B.C.D/M longer-prefixes\
9681 |X:X::X:X/M longer-prefixes\
9686 BGP_INSTANCE_HELP_STR
9688 BGP_SAFI_WITH_LABEL_HELP_STR
9689 "Display detailed information about dampening\n"
9690 "Display detail of configured dampening parameters\n"
9691 "Display routes matching the route-map\n"
9692 "A route-map to match on\n"
9693 "Display routes conforming to the prefix-list\n"
9694 "Prefix-list name\n"
9695 "Display routes conforming to the filter-list\n"
9696 "Regular expression access list name\n"
9697 "BGP RIB advertisement statistics\n"
9698 "Display routes matching the community-list\n"
9699 "community-list number\n"
9700 "community-list name\n"
9701 "Exact match of the communities\n"
9703 "Display route and more specific routes\n"
9705 "Display route and more specific routes\n")
9707 afi_t afi
= AFI_IP6
;
9708 safi_t safi
= SAFI_UNICAST
;
9709 int exact_match
= 0;
9710 struct bgp
*bgp
= NULL
;
9713 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
9718 if (argv_find(argv
, argc
, "dampening", &idx
)) {
9719 if (argv_find(argv
, argc
, "parameters", &idx
))
9720 return bgp_show_dampening_parameters(vty
, afi
, safi
);
9723 if (argv_find(argv
, argc
, "prefix-list", &idx
))
9724 return bgp_show_prefix_list(vty
, bgp
, argv
[idx
+ 1]->arg
, afi
,
9725 safi
, bgp_show_type_prefix_list
);
9727 if (argv_find(argv
, argc
, "filter-list", &idx
))
9728 return bgp_show_filter_list(vty
, bgp
, argv
[idx
+ 1]->arg
, afi
,
9729 safi
, bgp_show_type_filter_list
);
9731 if (argv_find(argv
, argc
, "statistics", &idx
))
9732 return bgp_table_stats(vty
, bgp
, afi
, safi
);
9734 if (argv_find(argv
, argc
, "route-map", &idx
))
9735 return bgp_show_route_map(vty
, bgp
, argv
[idx
+ 1]->arg
, afi
,
9736 safi
, bgp_show_type_route_map
);
9738 if (argv_find(argv
, argc
, "community-list", &idx
)) {
9739 const char *clist_number_or_name
= argv
[++idx
]->arg
;
9740 if (++idx
< argc
&& strmatch(argv
[idx
]->text
, "exact-match"))
9742 return bgp_show_community_list(vty
, bgp
, clist_number_or_name
,
9743 exact_match
, afi
, safi
);
9746 if (argv_find(argv
, argc
, "A.B.C.D/M", &idx
)
9747 || argv_find(argv
, argc
, "X:X::X:X/M", &idx
))
9748 return bgp_show_prefix_longer(vty
, bgp
, argv
[idx
]->arg
, afi
,
9750 bgp_show_type_prefix_longer
);
9755 /* BGP route print out function with JSON */
9756 DEFUN (show_ip_bgp_json
,
9757 show_ip_bgp_json_cmd
,
9758 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]]\
9760 |dampening <flap-statistics|dampened-paths>\
9761 |community [AA:NN|local-AS|no-advertise|no-export\
9762 |graceful-shutdown|no-peer|blackhole|llgr-stale|no-llgr\
9763 |accept-own|accept-own-nexthop|route-filter-v6\
9764 |route-filter-v4|route-filter-translated-v6\
9765 |route-filter-translated-v4] [exact-match]\
9770 BGP_INSTANCE_HELP_STR
9772 BGP_SAFI_WITH_LABEL_HELP_STR
9773 "Display only routes with non-natural netmasks\n"
9774 "Display detailed information about dampening\n"
9775 "Display flap statistics of routes\n"
9776 "Display paths suppressed due to dampening\n"
9777 "Display routes matching the communities\n"
9779 "Do not send outside local AS (well-known community)\n"
9780 "Do not advertise to any peer (well-known community)\n"
9781 "Do not export to next AS (well-known community)\n"
9782 "Graceful shutdown (well-known community)\n"
9783 "Do not export to any peer (well-known community)\n"
9784 "Inform EBGP peers to blackhole traffic to prefix (well-known community)\n"
9785 "Staled Long-lived Graceful Restart VPN route (well-known community)\n"
9786 "Removed because Long-lived Graceful Restart was not enabled for VPN route (well-known community)\n"
9787 "Should accept local VPN route if exported and imported into different VRF (well-known community)\n"
9788 "Should accept VPN route with local nexthop (well-known community)\n"
9789 "RT VPNv6 route filtering (well-known community)\n"
9790 "RT VPNv4 route filtering (well-known community)\n"
9791 "RT translated VPNv6 route filtering (well-known community)\n"
9792 "RT translated VPNv4 route filtering (well-known community)\n"
9793 "Exact match of the communities\n"
9796 afi_t afi
= AFI_IP6
;
9797 safi_t safi
= SAFI_UNICAST
;
9798 enum bgp_show_type sh_type
= bgp_show_type_normal
;
9799 struct bgp
*bgp
= NULL
;
9801 int exact_match
= 0;
9802 bool uj
= use_json(argc
, argv
);
9807 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
9812 if (argv_find(argv
, argc
, "cidr-only", &idx
))
9813 return bgp_show(vty
, bgp
, afi
, safi
, bgp_show_type_cidr_only
,
9816 if (argv_find(argv
, argc
, "dampening", &idx
)) {
9817 if (argv_find(argv
, argc
, "dampened-paths", &idx
))
9818 return bgp_show(vty
, bgp
, afi
, safi
,
9819 bgp_show_type_dampend_paths
, NULL
, uj
);
9820 else if (argv_find(argv
, argc
, "flap-statistics", &idx
))
9821 return bgp_show(vty
, bgp
, afi
, safi
,
9822 bgp_show_type_flap_statistics
, NULL
,
9826 if (argv_find(argv
, argc
, "community", &idx
)) {
9827 char *maybecomm
= NULL
;
9828 char *community
= NULL
;
9830 if (idx
+ 1 < argc
) {
9831 if (argv
[idx
+ 1]->type
== VARIABLE_TKN
)
9832 maybecomm
= argv
[idx
+ 1]->arg
;
9834 maybecomm
= argv
[idx
+ 1]->text
;
9837 if (maybecomm
&& !strmatch(maybecomm
, "json")
9838 && !strmatch(maybecomm
, "exact-match"))
9839 community
= maybecomm
;
9841 if (argv_find(argv
, argc
, "exact-match", &idx
))
9845 return bgp_show_community(vty
, bgp
, community
,
9846 exact_match
, afi
, safi
, uj
);
9848 return (bgp_show(vty
, bgp
, afi
, safi
,
9849 bgp_show_type_community_all
, NULL
,
9853 return bgp_show(vty
, bgp
, afi
, safi
, sh_type
, NULL
, uj
);
9856 DEFUN (show_ip_bgp_route
,
9857 show_ip_bgp_route_cmd
,
9858 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]]"
9859 "<A.B.C.D|A.B.C.D/M|X:X::X:X|X:X::X:X/M> [<bestpath|multipath>] [json]",
9863 BGP_INSTANCE_HELP_STR
9865 BGP_SAFI_WITH_LABEL_HELP_STR
9866 "Network in the BGP routing table to display\n"
9868 "Network in the BGP routing table to display\n"
9870 "Display only the bestpath\n"
9871 "Display only multipaths\n"
9874 int prefix_check
= 0;
9876 afi_t afi
= AFI_IP6
;
9877 safi_t safi
= SAFI_UNICAST
;
9878 char *prefix
= NULL
;
9879 struct bgp
*bgp
= NULL
;
9880 enum bgp_path_type path_type
;
9881 bool uj
= use_json(argc
, argv
);
9885 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
9892 "Specified 'all' vrf's but this command currently only works per view/vrf\n");
9896 /* <A.B.C.D|A.B.C.D/M|X:X::X:X|X:X::X:X/M> */
9897 if (argv_find(argv
, argc
, "A.B.C.D", &idx
)
9898 || argv_find(argv
, argc
, "X:X::X:X", &idx
))
9900 else if (argv_find(argv
, argc
, "A.B.C.D/M", &idx
)
9901 || argv_find(argv
, argc
, "X:X::X:X/M", &idx
))
9904 if ((argv
[idx
]->type
== IPV6_TKN
|| argv
[idx
]->type
== IPV6_PREFIX_TKN
)
9905 && afi
!= AFI_IP6
) {
9907 "%% Cannot specify IPv6 address or prefix with IPv4 AFI\n");
9910 if ((argv
[idx
]->type
== IPV4_TKN
|| argv
[idx
]->type
== IPV4_PREFIX_TKN
)
9913 "%% Cannot specify IPv4 address or prefix with IPv6 AFI\n");
9917 prefix
= argv
[idx
]->arg
;
9919 /* [<bestpath|multipath>] */
9920 if (argv_find(argv
, argc
, "bestpath", &idx
))
9921 path_type
= BGP_PATH_SHOW_BESTPATH
;
9922 else if (argv_find(argv
, argc
, "multipath", &idx
))
9923 path_type
= BGP_PATH_SHOW_MULTIPATH
;
9925 path_type
= BGP_PATH_SHOW_ALL
;
9927 return bgp_show_route(vty
, bgp
, prefix
, afi
, safi
, NULL
, prefix_check
,
9931 DEFUN (show_ip_bgp_regexp
,
9932 show_ip_bgp_regexp_cmd
,
9933 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]] regexp REGEX...",
9937 BGP_INSTANCE_HELP_STR
9939 BGP_SAFI_WITH_LABEL_HELP_STR
9940 "Display routes matching the AS path regular expression\n"
9941 "A regular-expression (1234567890_^|[,{}() ]$*+.?-\\) to match the BGP AS paths\n")
9943 afi_t afi
= AFI_IP6
;
9944 safi_t safi
= SAFI_UNICAST
;
9945 struct bgp
*bgp
= NULL
;
9948 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
9953 // get index of regex
9954 argv_find(argv
, argc
, "regexp", &idx
);
9957 char *regstr
= argv_concat(argv
, argc
, idx
);
9958 int rc
= bgp_show_regexp(vty
, bgp
, (const char *)regstr
, afi
, safi
,
9959 bgp_show_type_regexp
);
9960 XFREE(MTYPE_TMP
, regstr
);
9964 DEFUN (show_ip_bgp_instance_all
,
9965 show_ip_bgp_instance_all_cmd
,
9966 "show [ip] bgp <view|vrf> all ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]] [json]",
9970 BGP_INSTANCE_ALL_HELP_STR
9972 BGP_SAFI_WITH_LABEL_HELP_STR
9976 safi_t safi
= SAFI_UNICAST
;
9977 struct bgp
*bgp
= NULL
;
9979 bool uj
= use_json(argc
, argv
);
9984 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
9989 bgp_show_all_instances_routes_vty(vty
, afi
, safi
, uj
);
9993 static int bgp_show_regexp(struct vty
*vty
, struct bgp
*bgp
, const char *regstr
,
9994 afi_t afi
, safi_t safi
, enum bgp_show_type type
)
9999 if (!config_bgp_aspath_validate(regstr
)) {
10000 vty_out(vty
, "Invalid character in as-path access-list %s\n",
10002 return CMD_WARNING_CONFIG_FAILED
;
10005 regex
= bgp_regcomp(regstr
);
10007 vty_out(vty
, "Can't compile regexp %s\n", regstr
);
10008 return CMD_WARNING
;
10011 rc
= bgp_show(vty
, bgp
, afi
, safi
, type
, regex
, 0);
10012 bgp_regex_free(regex
);
10016 static int bgp_show_prefix_list(struct vty
*vty
, struct bgp
*bgp
,
10017 const char *prefix_list_str
, afi_t afi
,
10018 safi_t safi
, enum bgp_show_type type
)
10020 struct prefix_list
*plist
;
10022 plist
= prefix_list_lookup(afi
, prefix_list_str
);
10023 if (plist
== NULL
) {
10024 vty_out(vty
, "%% %s is not a valid prefix-list name\n",
10026 return CMD_WARNING
;
10029 return bgp_show(vty
, bgp
, afi
, safi
, type
, plist
, 0);
10032 static int bgp_show_filter_list(struct vty
*vty
, struct bgp
*bgp
,
10033 const char *filter
, afi_t afi
, safi_t safi
,
10034 enum bgp_show_type type
)
10036 struct as_list
*as_list
;
10038 as_list
= as_list_lookup(filter
);
10039 if (as_list
== NULL
) {
10040 vty_out(vty
, "%% %s is not a valid AS-path access-list name\n",
10042 return CMD_WARNING
;
10045 return bgp_show(vty
, bgp
, afi
, safi
, type
, as_list
, 0);
10048 static int bgp_show_route_map(struct vty
*vty
, struct bgp
*bgp
,
10049 const char *rmap_str
, afi_t afi
, safi_t safi
,
10050 enum bgp_show_type type
)
10052 struct route_map
*rmap
;
10054 rmap
= route_map_lookup_by_name(rmap_str
);
10056 vty_out(vty
, "%% %s is not a valid route-map name\n", rmap_str
);
10057 return CMD_WARNING
;
10060 return bgp_show(vty
, bgp
, afi
, safi
, type
, rmap
, 0);
10063 static int bgp_show_community(struct vty
*vty
, struct bgp
*bgp
,
10064 const char *comstr
, int exact
, afi_t afi
,
10065 safi_t safi
, bool use_json
)
10067 struct community
*com
;
10070 com
= community_str2com(comstr
);
10072 vty_out(vty
, "%% Community malformed: %s\n", comstr
);
10073 return CMD_WARNING
;
10076 ret
= bgp_show(vty
, bgp
, afi
, safi
,
10077 (exact
? bgp_show_type_community_exact
10078 : bgp_show_type_community
),
10080 community_free(&com
);
10085 static int bgp_show_community_list(struct vty
*vty
, struct bgp
*bgp
,
10086 const char *com
, int exact
, afi_t afi
,
10089 struct community_list
*list
;
10091 list
= community_list_lookup(bgp_clist
, com
, 0, COMMUNITY_LIST_MASTER
);
10092 if (list
== NULL
) {
10093 vty_out(vty
, "%% %s is not a valid community-list name\n", com
);
10094 return CMD_WARNING
;
10097 return bgp_show(vty
, bgp
, afi
, safi
,
10098 (exact
? bgp_show_type_community_list_exact
10099 : bgp_show_type_community_list
),
10103 static int bgp_show_prefix_longer(struct vty
*vty
, struct bgp
*bgp
,
10104 const char *prefix
, afi_t afi
, safi_t safi
,
10105 enum bgp_show_type type
)
10112 ret
= str2prefix(prefix
, p
);
10114 vty_out(vty
, "%% Malformed Prefix\n");
10115 return CMD_WARNING
;
10118 ret
= bgp_show(vty
, bgp
, afi
, safi
, type
, p
, 0);
10123 static struct peer
*peer_lookup_in_view(struct vty
*vty
, struct bgp
*bgp
,
10124 const char *ip_str
, bool use_json
)
10128 union sockunion su
;
10130 /* Get peer sockunion. */
10131 ret
= str2sockunion(ip_str
, &su
);
10133 peer
= peer_lookup_by_conf_if(bgp
, ip_str
);
10135 peer
= peer_lookup_by_hostname(bgp
, ip_str
);
10139 json_object
*json_no
= NULL
;
10140 json_no
= json_object_new_object();
10141 json_object_string_add(
10143 "malformedAddressOrName",
10145 vty_out(vty
, "%s\n",
10146 json_object_to_json_string_ext(
10148 JSON_C_TO_STRING_PRETTY
));
10149 json_object_free(json_no
);
10152 "%% Malformed address or name: %s\n",
10160 /* Peer structure lookup. */
10161 peer
= peer_lookup(bgp
, &su
);
10164 json_object
*json_no
= NULL
;
10165 json_no
= json_object_new_object();
10166 json_object_string_add(json_no
, "warning",
10167 "No such neighbor in this view/vrf");
10168 vty_out(vty
, "%s\n",
10169 json_object_to_json_string_ext(
10170 json_no
, JSON_C_TO_STRING_PRETTY
));
10171 json_object_free(json_no
);
10173 vty_out(vty
, "No such neighbor in this view/vrf\n");
10181 BGP_STATS_MAXBITLEN
= 0,
10183 BGP_STATS_PREFIXES
,
10185 BGP_STATS_UNAGGREGATEABLE
,
10186 BGP_STATS_MAX_AGGREGATEABLE
,
10187 BGP_STATS_AGGREGATES
,
10189 BGP_STATS_ASPATH_COUNT
,
10190 BGP_STATS_ASPATH_MAXHOPS
,
10191 BGP_STATS_ASPATH_TOTHOPS
,
10192 BGP_STATS_ASPATH_MAXSIZE
,
10193 BGP_STATS_ASPATH_TOTSIZE
,
10194 BGP_STATS_ASN_HIGHEST
,
10198 static const char *table_stats_strs
[] = {
10199 [BGP_STATS_PREFIXES
] = "Total Prefixes",
10200 [BGP_STATS_TOTPLEN
] = "Average prefix length",
10201 [BGP_STATS_RIB
] = "Total Advertisements",
10202 [BGP_STATS_UNAGGREGATEABLE
] = "Unaggregateable prefixes",
10203 [BGP_STATS_MAX_AGGREGATEABLE
] =
10204 "Maximum aggregateable prefixes",
10205 [BGP_STATS_AGGREGATES
] = "BGP Aggregate advertisements",
10206 [BGP_STATS_SPACE
] = "Address space advertised",
10207 [BGP_STATS_ASPATH_COUNT
] = "Advertisements with paths",
10208 [BGP_STATS_ASPATH_MAXHOPS
] = "Longest AS-Path (hops)",
10209 [BGP_STATS_ASPATH_MAXSIZE
] = "Largest AS-Path (bytes)",
10210 [BGP_STATS_ASPATH_TOTHOPS
] = "Average AS-Path length (hops)",
10211 [BGP_STATS_ASPATH_TOTSIZE
] = "Average AS-Path size (bytes)",
10212 [BGP_STATS_ASN_HIGHEST
] = "Highest public ASN",
10213 [BGP_STATS_MAX
] = NULL
,
10216 struct bgp_table_stats
{
10217 struct bgp_table
*table
;
10218 unsigned long long counts
[BGP_STATS_MAX
];
10219 double total_space
;
10223 #define TALLY_SIGFIG 100000
10224 static unsigned long
10225 ravg_tally (unsigned long count
, unsigned long oldavg
, unsigned long newval
)
10227 unsigned long newtot
= (count
-1) * oldavg
+ (newval
* TALLY_SIGFIG
);
10228 unsigned long res
= (newtot
* TALLY_SIGFIG
) / count
;
10229 unsigned long ret
= newtot
/ count
;
10231 if ((res
% TALLY_SIGFIG
) > (TALLY_SIGFIG
/2))
10238 static void bgp_table_stats_rn(struct bgp_node
*rn
, struct bgp_node
*top
,
10239 struct bgp_table_stats
*ts
, unsigned int space
)
10241 struct bgp_node
*prn
= bgp_node_parent_nolock(rn
);
10242 struct bgp_path_info
*pi
;
10247 if (!bgp_node_has_bgp_path_info_data(rn
))
10250 ts
->counts
[BGP_STATS_PREFIXES
]++;
10251 ts
->counts
[BGP_STATS_TOTPLEN
] += rn
->p
.prefixlen
;
10254 ts
->counts
[BGP_STATS_AVGPLEN
]
10255 = ravg_tally (ts
->counts
[BGP_STATS_PREFIXES
],
10256 ts
->counts
[BGP_STATS_AVGPLEN
],
10260 /* check if the prefix is included by any other announcements */
10261 while (prn
&& !bgp_node_has_bgp_path_info_data(prn
))
10262 prn
= bgp_node_parent_nolock(prn
);
10264 if (prn
== NULL
|| prn
== top
) {
10265 ts
->counts
[BGP_STATS_UNAGGREGATEABLE
]++;
10266 /* announced address space */
10268 ts
->total_space
+= pow(2.0, space
- rn
->p
.prefixlen
);
10269 } else if (bgp_node_has_bgp_path_info_data(prn
))
10270 ts
->counts
[BGP_STATS_MAX_AGGREGATEABLE
]++;
10273 for (pi
= bgp_node_get_bgp_path_info(rn
); pi
; pi
= pi
->next
) {
10274 ts
->counts
[BGP_STATS_RIB
]++;
10277 && (CHECK_FLAG(pi
->attr
->flag
,
10278 ATTR_FLAG_BIT(BGP_ATTR_ATOMIC_AGGREGATE
))))
10279 ts
->counts
[BGP_STATS_AGGREGATES
]++;
10281 /* as-path stats */
10282 if (pi
->attr
&& pi
->attr
->aspath
) {
10283 unsigned int hops
= aspath_count_hops(pi
->attr
->aspath
);
10284 unsigned int size
= aspath_size(pi
->attr
->aspath
);
10285 as_t highest
= aspath_highest(pi
->attr
->aspath
);
10287 ts
->counts
[BGP_STATS_ASPATH_COUNT
]++;
10289 if (hops
> ts
->counts
[BGP_STATS_ASPATH_MAXHOPS
])
10290 ts
->counts
[BGP_STATS_ASPATH_MAXHOPS
] = hops
;
10292 if (size
> ts
->counts
[BGP_STATS_ASPATH_MAXSIZE
])
10293 ts
->counts
[BGP_STATS_ASPATH_MAXSIZE
] = size
;
10295 ts
->counts
[BGP_STATS_ASPATH_TOTHOPS
] += hops
;
10296 ts
->counts
[BGP_STATS_ASPATH_TOTSIZE
] += size
;
10298 ts
->counts
[BGP_STATS_ASPATH_AVGHOPS
]
10299 = ravg_tally (ts
->counts
[BGP_STATS_ASPATH_COUNT
],
10300 ts
->counts
[BGP_STATS_ASPATH_AVGHOPS
],
10302 ts
->counts
[BGP_STATS_ASPATH_AVGSIZE
]
10303 = ravg_tally (ts
->counts
[BGP_STATS_ASPATH_COUNT
],
10304 ts
->counts
[BGP_STATS_ASPATH_AVGSIZE
],
10307 if (highest
> ts
->counts
[BGP_STATS_ASN_HIGHEST
])
10308 ts
->counts
[BGP_STATS_ASN_HIGHEST
] = highest
;
10313 static int bgp_table_stats_walker(struct thread
*t
)
10315 struct bgp_node
*rn
, *nrn
;
10316 struct bgp_node
*top
;
10317 struct bgp_table_stats
*ts
= THREAD_ARG(t
);
10318 unsigned int space
= 0;
10320 if (!(top
= bgp_table_top(ts
->table
)))
10323 switch (ts
->table
->afi
) {
10325 space
= IPV4_MAX_BITLEN
;
10328 space
= IPV6_MAX_BITLEN
;
10334 ts
->counts
[BGP_STATS_MAXBITLEN
] = space
;
10336 for (rn
= top
; rn
; rn
= bgp_route_next(rn
)) {
10337 if (ts
->table
->safi
== SAFI_MPLS_VPN
) {
10338 struct bgp_table
*table
;
10340 table
= bgp_node_get_bgp_table_info(rn
);
10344 top
= bgp_table_top(table
);
10345 for (nrn
= bgp_table_top(table
); nrn
;
10346 nrn
= bgp_route_next(nrn
))
10347 bgp_table_stats_rn(nrn
, top
, ts
, space
);
10349 bgp_table_stats_rn(rn
, top
, ts
, space
);
10356 static int bgp_table_stats(struct vty
*vty
, struct bgp
*bgp
, afi_t afi
,
10359 struct bgp_table_stats ts
;
10362 if (!bgp
->rib
[afi
][safi
]) {
10363 vty_out(vty
, "%% No RIB exist's for the AFI(%d)/SAFI(%d)\n",
10365 return CMD_WARNING
;
10368 vty_out(vty
, "BGP %s RIB statistics\n", afi_safi_print(afi
, safi
));
10370 /* labeled-unicast routes live in the unicast table */
10371 if (safi
== SAFI_LABELED_UNICAST
)
10372 safi
= SAFI_UNICAST
;
10374 memset(&ts
, 0, sizeof(ts
));
10375 ts
.table
= bgp
->rib
[afi
][safi
];
10376 thread_execute(bm
->master
, bgp_table_stats_walker
, &ts
, 0);
10378 for (i
= 0; i
< BGP_STATS_MAX
; i
++) {
10379 if (!table_stats_strs
[i
])
10384 case BGP_STATS_ASPATH_AVGHOPS
:
10385 case BGP_STATS_ASPATH_AVGSIZE
:
10386 case BGP_STATS_AVGPLEN
:
10387 vty_out (vty
, "%-30s: ", table_stats_strs
[i
]);
10388 vty_out (vty
, "%12.2f",
10389 (float)ts
.counts
[i
] / (float)TALLY_SIGFIG
);
10392 case BGP_STATS_ASPATH_TOTHOPS
:
10393 case BGP_STATS_ASPATH_TOTSIZE
:
10394 vty_out(vty
, "%-30s: ", table_stats_strs
[i
]);
10395 vty_out(vty
, "%12.2f",
10397 ? (float)ts
.counts
[i
]
10399 [BGP_STATS_ASPATH_COUNT
]
10402 case BGP_STATS_TOTPLEN
:
10403 vty_out(vty
, "%-30s: ", table_stats_strs
[i
]);
10404 vty_out(vty
, "%12.2f",
10406 ? (float)ts
.counts
[i
]
10408 [BGP_STATS_PREFIXES
]
10411 case BGP_STATS_SPACE
:
10412 vty_out(vty
, "%-30s: ", table_stats_strs
[i
]);
10413 vty_out(vty
, "%12g\n", ts
.total_space
);
10415 if (afi
== AFI_IP6
) {
10416 vty_out(vty
, "%30s: ", "/32 equivalent ");
10417 vty_out(vty
, "%12g\n",
10418 ts
.total_space
* pow(2.0, -128 + 32));
10419 vty_out(vty
, "%30s: ", "/48 equivalent ");
10420 vty_out(vty
, "%12g\n",
10421 ts
.total_space
* pow(2.0, -128 + 48));
10423 vty_out(vty
, "%30s: ", "% announced ");
10424 vty_out(vty
, "%12.2f\n",
10425 ts
.total_space
* 100. * pow(2.0, -32));
10426 vty_out(vty
, "%30s: ", "/8 equivalent ");
10427 vty_out(vty
, "%12.2f\n",
10428 ts
.total_space
* pow(2.0, -32 + 8));
10429 vty_out(vty
, "%30s: ", "/24 equivalent ");
10430 vty_out(vty
, "%12.2f\n",
10431 ts
.total_space
* pow(2.0, -32 + 24));
10435 vty_out(vty
, "%-30s: ", table_stats_strs
[i
]);
10436 vty_out(vty
, "%12llu", ts
.counts
[i
]);
10439 vty_out(vty
, "\n");
10441 return CMD_SUCCESS
;
10453 PCOUNT_PFCNT
, /* the figure we display to users */
10457 static const char *pcount_strs
[] = {
10458 [PCOUNT_ADJ_IN
] = "Adj-in",
10459 [PCOUNT_DAMPED
] = "Damped",
10460 [PCOUNT_REMOVED
] = "Removed",
10461 [PCOUNT_HISTORY
] = "History",
10462 [PCOUNT_STALE
] = "Stale",
10463 [PCOUNT_VALID
] = "Valid",
10464 [PCOUNT_ALL
] = "All RIB",
10465 [PCOUNT_COUNTED
] = "PfxCt counted",
10466 [PCOUNT_PFCNT
] = "Useable",
10467 [PCOUNT_MAX
] = NULL
,
10470 struct peer_pcounts
{
10471 unsigned int count
[PCOUNT_MAX
];
10472 const struct peer
*peer
;
10473 const struct bgp_table
*table
;
10476 static int bgp_peer_count_walker(struct thread
*t
)
10478 struct bgp_node
*rn
;
10479 struct peer_pcounts
*pc
= THREAD_ARG(t
);
10480 const struct peer
*peer
= pc
->peer
;
10482 for (rn
= bgp_table_top(pc
->table
); rn
; rn
= bgp_route_next(rn
)) {
10483 struct bgp_adj_in
*ain
;
10484 struct bgp_path_info
*pi
;
10486 for (ain
= rn
->adj_in
; ain
; ain
= ain
->next
)
10487 if (ain
->peer
== peer
)
10488 pc
->count
[PCOUNT_ADJ_IN
]++;
10490 for (pi
= bgp_node_get_bgp_path_info(rn
); pi
; pi
= pi
->next
) {
10492 if (pi
->peer
!= peer
)
10495 pc
->count
[PCOUNT_ALL
]++;
10497 if (CHECK_FLAG(pi
->flags
, BGP_PATH_DAMPED
))
10498 pc
->count
[PCOUNT_DAMPED
]++;
10499 if (CHECK_FLAG(pi
->flags
, BGP_PATH_HISTORY
))
10500 pc
->count
[PCOUNT_HISTORY
]++;
10501 if (CHECK_FLAG(pi
->flags
, BGP_PATH_REMOVED
))
10502 pc
->count
[PCOUNT_REMOVED
]++;
10503 if (CHECK_FLAG(pi
->flags
, BGP_PATH_STALE
))
10504 pc
->count
[PCOUNT_STALE
]++;
10505 if (CHECK_FLAG(pi
->flags
, BGP_PATH_VALID
))
10506 pc
->count
[PCOUNT_VALID
]++;
10507 if (!CHECK_FLAG(pi
->flags
, BGP_PATH_UNUSEABLE
))
10508 pc
->count
[PCOUNT_PFCNT
]++;
10510 if (CHECK_FLAG(pi
->flags
, BGP_PATH_COUNTED
)) {
10511 pc
->count
[PCOUNT_COUNTED
]++;
10512 if (CHECK_FLAG(pi
->flags
, BGP_PATH_UNUSEABLE
))
10514 EC_LIB_DEVELOPMENT
,
10515 "Attempting to count but flags say it is unusable");
10517 if (!CHECK_FLAG(pi
->flags
, BGP_PATH_UNUSEABLE
))
10519 EC_LIB_DEVELOPMENT
,
10520 "Not counted but flags say we should");
10527 static int bgp_peer_counts(struct vty
*vty
, struct peer
*peer
, afi_t afi
,
10528 safi_t safi
, bool use_json
)
10530 struct peer_pcounts pcounts
= {.peer
= peer
};
10532 json_object
*json
= NULL
;
10533 json_object
*json_loop
= NULL
;
10536 json
= json_object_new_object();
10537 json_loop
= json_object_new_object();
10540 if (!peer
|| !peer
->bgp
|| !peer
->afc
[afi
][safi
]
10541 || !peer
->bgp
->rib
[afi
][safi
]) {
10543 json_object_string_add(
10545 "No such neighbor or address family");
10546 vty_out(vty
, "%s\n", json_object_to_json_string(json
));
10547 json_object_free(json
);
10549 vty_out(vty
, "%% No such neighbor or address family\n");
10551 return CMD_WARNING
;
10554 memset(&pcounts
, 0, sizeof(pcounts
));
10555 pcounts
.peer
= peer
;
10556 pcounts
.table
= peer
->bgp
->rib
[afi
][safi
];
10558 /* in-place call via thread subsystem so as to record execution time
10559 * stats for the thread-walk (i.e. ensure this can't be blamed on
10560 * on just vty_read()).
10562 thread_execute(bm
->master
, bgp_peer_count_walker
, &pcounts
, 0);
10565 json_object_string_add(json
, "prefixCountsFor", peer
->host
);
10566 json_object_string_add(json
, "multiProtocol",
10567 afi_safi_print(afi
, safi
));
10568 json_object_int_add(json
, "pfxCounter",
10569 peer
->pcount
[afi
][safi
]);
10571 for (i
= 0; i
< PCOUNT_MAX
; i
++)
10572 json_object_int_add(json_loop
, pcount_strs
[i
],
10575 json_object_object_add(json
, "ribTableWalkCounters", json_loop
);
10577 if (pcounts
.count
[PCOUNT_PFCNT
] != peer
->pcount
[afi
][safi
]) {
10578 json_object_string_add(json
, "pfxctDriftFor",
10580 json_object_string_add(
10581 json
, "recommended",
10582 "Please report this bug, with the above command output");
10584 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
10585 json
, JSON_C_TO_STRING_PRETTY
));
10586 json_object_free(json
);
10590 && bgp_flag_check(peer
->bgp
, BGP_FLAG_SHOW_HOSTNAME
)) {
10591 vty_out(vty
, "Prefix counts for %s/%s, %s\n",
10592 peer
->hostname
, peer
->host
,
10593 afi_safi_print(afi
, safi
));
10595 vty_out(vty
, "Prefix counts for %s, %s\n", peer
->host
,
10596 afi_safi_print(afi
, safi
));
10599 vty_out(vty
, "PfxCt: %ld\n", peer
->pcount
[afi
][safi
]);
10600 vty_out(vty
, "\nCounts from RIB table walk:\n\n");
10602 for (i
= 0; i
< PCOUNT_MAX
; i
++)
10603 vty_out(vty
, "%20s: %-10d\n", pcount_strs
[i
],
10606 if (pcounts
.count
[PCOUNT_PFCNT
] != peer
->pcount
[afi
][safi
]) {
10607 vty_out(vty
, "%s [pcount] PfxCt drift!\n", peer
->host
);
10609 "Please report this bug, with the above command output\n");
10613 return CMD_SUCCESS
;
10616 DEFUN (show_ip_bgp_instance_neighbor_prefix_counts
,
10617 show_ip_bgp_instance_neighbor_prefix_counts_cmd
,
10618 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_CMD_STR
"]] "
10619 "neighbors <A.B.C.D|X:X::X:X|WORD> prefix-counts [json]",
10623 BGP_INSTANCE_HELP_STR
10626 "Detailed information on TCP and BGP neighbor connections\n"
10627 "Neighbor to display information about\n"
10628 "Neighbor to display information about\n"
10629 "Neighbor on BGP configured interface\n"
10630 "Display detailed prefix count information\n"
10633 afi_t afi
= AFI_IP6
;
10634 safi_t safi
= SAFI_UNICAST
;
10637 struct bgp
*bgp
= NULL
;
10638 bool uj
= use_json(argc
, argv
);
10643 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
10646 return CMD_WARNING
;
10648 argv_find(argv
, argc
, "neighbors", &idx
);
10649 peer
= peer_lookup_in_view(vty
, bgp
, argv
[idx
+ 1]->arg
, uj
);
10651 return CMD_WARNING
;
10653 return bgp_peer_counts(vty
, peer
, AFI_IP
, SAFI_UNICAST
, uj
);
10656 #ifdef KEEP_OLD_VPN_COMMANDS
10657 DEFUN (show_ip_bgp_vpn_neighbor_prefix_counts
,
10658 show_ip_bgp_vpn_neighbor_prefix_counts_cmd
,
10659 "show [ip] bgp <vpnv4|vpnv6> all neighbors <A.B.C.D|X:X::X:X|WORD> prefix-counts [json]",
10664 "Display information about all VPNv4 NLRIs\n"
10665 "Detailed information on TCP and BGP neighbor connections\n"
10666 "Neighbor to display information about\n"
10667 "Neighbor to display information about\n"
10668 "Neighbor on BGP configured interface\n"
10669 "Display detailed prefix count information\n"
10674 bool uj
= use_json(argc
, argv
);
10676 peer
= peer_lookup_in_view(vty
, NULL
, argv
[idx_peer
]->arg
, uj
);
10678 return CMD_WARNING
;
10680 return bgp_peer_counts(vty
, peer
, AFI_IP
, SAFI_MPLS_VPN
, uj
);
10683 DEFUN (show_ip_bgp_vpn_all_route_prefix
,
10684 show_ip_bgp_vpn_all_route_prefix_cmd
,
10685 "show [ip] bgp <vpnv4|vpnv6> all <A.B.C.D|A.B.C.D/M> [json]",
10690 "Display information about all VPNv4 NLRIs\n"
10691 "Network in the BGP routing table to display\n"
10692 "Network in the BGP routing table to display\n"
10696 char *network
= NULL
;
10697 struct bgp
*bgp
= bgp_get_default();
10699 vty_out(vty
, "Can't find default instance\n");
10700 return CMD_WARNING
;
10703 if (argv_find(argv
, argc
, "A.B.C.D", &idx
))
10704 network
= argv
[idx
]->arg
;
10705 else if (argv_find(argv
, argc
, "A.B.C.D/M", &idx
))
10706 network
= argv
[idx
]->arg
;
10708 vty_out(vty
, "Unable to figure out Network\n");
10709 return CMD_WARNING
;
10712 return bgp_show_route(vty
, bgp
, network
, AFI_IP
, SAFI_MPLS_VPN
, NULL
, 0,
10713 BGP_PATH_SHOW_ALL
, use_json(argc
, argv
));
10715 #endif /* KEEP_OLD_VPN_COMMANDS */
10717 DEFUN (show_ip_bgp_l2vpn_evpn_all_route_prefix
,
10718 show_ip_bgp_l2vpn_evpn_all_route_prefix_cmd
,
10719 "show [ip] bgp l2vpn evpn all <A.B.C.D|A.B.C.D/M> [json]",
10725 "Display information about all EVPN NLRIs\n"
10726 "Network in the BGP routing table to display\n"
10727 "Network in the BGP routing table to display\n"
10731 char *network
= NULL
;
10733 if (argv_find(argv
, argc
, "A.B.C.D", &idx
))
10734 network
= argv
[idx
]->arg
;
10735 else if (argv_find(argv
, argc
, "A.B.C.D/M", &idx
))
10736 network
= argv
[idx
]->arg
;
10738 vty_out(vty
, "Unable to figure out Network\n");
10739 return CMD_WARNING
;
10741 return bgp_show_route(vty
, NULL
, network
, AFI_L2VPN
, SAFI_EVPN
, NULL
, 0,
10742 BGP_PATH_SHOW_ALL
, use_json(argc
, argv
));
10745 static void show_adj_route(struct vty
*vty
, struct peer
*peer
, afi_t afi
,
10746 safi_t safi
, enum bgp_show_adj_route_type type
,
10747 const char *rmap_name
, bool use_json
,
10750 struct bgp_table
*table
;
10751 struct bgp_adj_in
*ain
;
10752 struct bgp_adj_out
*adj
;
10753 unsigned long output_count
;
10754 unsigned long filtered_count
;
10755 struct bgp_node
*rn
;
10761 struct update_subgroup
*subgrp
;
10762 json_object
*json_scode
= NULL
;
10763 json_object
*json_ocode
= NULL
;
10764 json_object
*json_ar
= NULL
;
10765 struct peer_af
*paf
;
10766 bool route_filtered
;
10769 json_scode
= json_object_new_object();
10770 json_ocode
= json_object_new_object();
10771 json_ar
= json_object_new_object();
10773 json_object_string_add(json_scode
, "suppressed", "s");
10774 json_object_string_add(json_scode
, "damped", "d");
10775 json_object_string_add(json_scode
, "history", "h");
10776 json_object_string_add(json_scode
, "valid", "*");
10777 json_object_string_add(json_scode
, "best", ">");
10778 json_object_string_add(json_scode
, "multipath", "=");
10779 json_object_string_add(json_scode
, "internal", "i");
10780 json_object_string_add(json_scode
, "ribFailure", "r");
10781 json_object_string_add(json_scode
, "stale", "S");
10782 json_object_string_add(json_scode
, "removed", "R");
10784 json_object_string_add(json_ocode
, "igp", "i");
10785 json_object_string_add(json_ocode
, "egp", "e");
10786 json_object_string_add(json_ocode
, "incomplete", "?");
10793 json_object_string_add(json
, "alert", "no BGP");
10794 vty_out(vty
, "%s\n", json_object_to_json_string(json
));
10795 json_object_free(json
);
10797 vty_out(vty
, "%% No bgp\n");
10801 /* labeled-unicast routes live in the unicast table */
10802 if (safi
== SAFI_LABELED_UNICAST
)
10803 table
= bgp
->rib
[afi
][SAFI_UNICAST
];
10805 table
= bgp
->rib
[afi
][safi
];
10807 output_count
= filtered_count
= 0;
10808 subgrp
= peer_subgroup(peer
, afi
, safi
);
10810 if (type
== bgp_show_adj_route_advertised
&& subgrp
10811 && CHECK_FLAG(subgrp
->sflags
, SUBGRP_STATUS_DEFAULT_ORIGINATE
)) {
10813 json_object_int_add(json
, "bgpTableVersion",
10815 json_object_string_add(json
, "bgpLocalRouterId",
10816 inet_ntoa(bgp
->router_id
));
10817 json_object_int_add(json
, "defaultLocPrf",
10818 bgp
->default_local_pref
);
10819 json_object_int_add(json
, "localAS", bgp
->as
);
10820 json_object_object_add(json
, "bgpStatusCodes",
10822 json_object_object_add(json
, "bgpOriginCodes",
10824 json_object_string_add(
10825 json
, "bgpOriginatingDefaultNetwork",
10826 (afi
== AFI_IP
) ? "0.0.0.0/0" : "::/0");
10828 vty_out(vty
, "BGP table version is %" PRIu64
10829 ", local router ID is %s, vrf id ",
10830 table
->version
, inet_ntoa(bgp
->router_id
));
10831 if (bgp
->vrf_id
== VRF_UNKNOWN
)
10832 vty_out(vty
, "%s", VRFID_NONE_STR
);
10834 vty_out(vty
, "%u", bgp
->vrf_id
);
10835 vty_out(vty
, "\n");
10836 vty_out(vty
, "Default local pref %u, ",
10837 bgp
->default_local_pref
);
10838 vty_out(vty
, "local AS %u\n", bgp
->as
);
10839 vty_out(vty
, BGP_SHOW_SCODE_HEADER
);
10840 vty_out(vty
, BGP_SHOW_NCODE_HEADER
);
10841 vty_out(vty
, BGP_SHOW_OCODE_HEADER
);
10843 vty_out(vty
, "Originating default network %s\n\n",
10844 (afi
== AFI_IP
) ? "0.0.0.0/0" : "::/0");
10849 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
)) {
10850 if (type
== bgp_show_adj_route_received
10851 || type
== bgp_show_adj_route_filtered
) {
10852 for (ain
= rn
->adj_in
; ain
; ain
= ain
->next
) {
10853 if (ain
->peer
!= peer
|| !ain
->attr
)
10858 json_object_int_add(
10859 json
, "bgpTableVersion",
10861 json_object_string_add(
10863 "bgpLocalRouterId",
10866 json_object_int_add(json
,
10868 bgp
->default_local_pref
);
10869 json_object_int_add(json
,
10870 "localAS", bgp
->as
);
10871 json_object_object_add(
10872 json
, "bgpStatusCodes",
10874 json_object_object_add(
10875 json
, "bgpOriginCodes",
10879 "BGP table version is 0, local router ID is %s, vrf id ",
10882 if (bgp
->vrf_id
== VRF_UNKNOWN
)
10888 vty_out(vty
, "\n");
10890 "Default local pref %u, ",
10891 bgp
->default_local_pref
);
10892 vty_out(vty
, "local AS %u\n",
10895 BGP_SHOW_SCODE_HEADER
);
10897 BGP_SHOW_NCODE_HEADER
);
10899 BGP_SHOW_OCODE_HEADER
);
10905 vty_out(vty
, BGP_SHOW_HEADER
);
10909 bgp_attr_dup(&attr
, ain
->attr
);
10910 route_filtered
= false;
10912 /* Filter prefix using distribute list,
10913 * filter list or prefix list
10915 if ((bgp_input_filter(peer
, &rn
->p
, &attr
, afi
,
10916 safi
)) == FILTER_DENY
)
10917 route_filtered
= true;
10919 /* Filter prefix using route-map */
10920 ret
= bgp_input_modifier(peer
, &rn
->p
, &attr
,
10921 afi
, safi
, rmap_name
);
10923 if (type
== bgp_show_adj_route_filtered
&&
10924 !route_filtered
&& ret
!= RMAP_DENY
) {
10925 bgp_attr_undup(&attr
, ain
->attr
);
10929 if (type
== bgp_show_adj_route_received
&&
10930 (route_filtered
|| ret
== RMAP_DENY
))
10933 route_vty_out_tmp(vty
, &rn
->p
, &attr
, safi
,
10934 use_json
, json_ar
);
10935 bgp_attr_undup(&attr
, ain
->attr
);
10938 } else if (type
== bgp_show_adj_route_advertised
) {
10939 RB_FOREACH (adj
, bgp_adj_out_rb
, &rn
->adj_out
)
10940 SUBGRP_FOREACH_PEER (adj
->subgroup
, paf
) {
10941 if (paf
->peer
!= peer
|| !adj
->attr
)
10946 json_object_int_add(
10950 json_object_string_add(
10952 "bgpLocalRouterId",
10955 json_object_int_add(
10956 json
, "defaultLocPrf",
10957 bgp
->default_local_pref
10959 json_object_int_add(
10962 json_object_object_add(
10966 json_object_object_add(
10972 "BGP table version is %" PRIu64
10973 ", local router ID is %s, vrf id ",
10986 vty_out(vty
, "\n");
10988 "Default local pref %u, ",
10989 bgp
->default_local_pref
10995 BGP_SHOW_SCODE_HEADER
);
10997 BGP_SHOW_NCODE_HEADER
);
10999 BGP_SHOW_OCODE_HEADER
);
11010 bgp_attr_dup(&attr
, adj
->attr
);
11011 ret
= bgp_output_modifier(
11012 peer
, &rn
->p
, &attr
, afi
, safi
,
11015 if (ret
!= RMAP_DENY
) {
11016 route_vty_out_tmp(vty
, &rn
->p
,
11025 bgp_attr_undup(&attr
, adj
->attr
);
11031 json_object_object_add(json
, "advertisedRoutes", json_ar
);
11032 json_object_int_add(json
, "totalPrefixCounter", output_count
);
11033 json_object_int_add(json
, "filteredPrefixCounter",
11036 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
11037 json
, JSON_C_TO_STRING_PRETTY
));
11038 json_object_free(json
);
11039 } else if (output_count
> 0) {
11040 if (filtered_count
> 0)
11042 "\nTotal number of prefixes %ld (%ld filtered)\n",
11043 output_count
, filtered_count
);
11045 vty_out(vty
, "\nTotal number of prefixes %ld\n",
11050 static int peer_adj_routes(struct vty
*vty
, struct peer
*peer
, afi_t afi
,
11051 safi_t safi
, enum bgp_show_adj_route_type type
,
11052 const char *rmap_name
, bool use_json
)
11054 json_object
*json
= NULL
;
11057 json
= json_object_new_object();
11059 if (!peer
|| !peer
->afc
[afi
][safi
]) {
11061 json_object_string_add(
11063 "No such neighbor or address family");
11064 vty_out(vty
, "%s\n", json_object_to_json_string(json
));
11065 json_object_free(json
);
11067 vty_out(vty
, "%% No such neighbor or address family\n");
11069 return CMD_WARNING
;
11072 if ((type
== bgp_show_adj_route_received
11073 || type
== bgp_show_adj_route_filtered
)
11074 && !CHECK_FLAG(peer
->af_flags
[afi
][safi
],
11075 PEER_FLAG_SOFT_RECONFIG
)) {
11077 json_object_string_add(
11079 "Inbound soft reconfiguration not enabled");
11080 vty_out(vty
, "%s\n", json_object_to_json_string(json
));
11081 json_object_free(json
);
11084 "%% Inbound soft reconfiguration not enabled\n");
11086 return CMD_WARNING
;
11089 show_adj_route(vty
, peer
, afi
, safi
, type
, rmap_name
, use_json
, json
);
11091 return CMD_SUCCESS
;
11094 DEFUN (show_ip_bgp_instance_neighbor_advertised_route
,
11095 show_ip_bgp_instance_neighbor_advertised_route_cmd
,
11096 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]] "
11097 "neighbors <A.B.C.D|X:X::X:X|WORD> <advertised-routes|received-routes|filtered-routes> [route-map WORD] [json]",
11101 BGP_INSTANCE_HELP_STR
11103 BGP_SAFI_WITH_LABEL_HELP_STR
11104 "Detailed information on TCP and BGP neighbor connections\n"
11105 "Neighbor to display information about\n"
11106 "Neighbor to display information about\n"
11107 "Neighbor on BGP configured interface\n"
11108 "Display the routes advertised to a BGP neighbor\n"
11109 "Display the received routes from neighbor\n"
11110 "Display the filtered routes received from neighbor\n"
11111 "Route-map to modify the attributes\n"
11112 "Name of the route map\n"
11115 afi_t afi
= AFI_IP6
;
11116 safi_t safi
= SAFI_UNICAST
;
11117 char *rmap_name
= NULL
;
11118 char *peerstr
= NULL
;
11119 struct bgp
*bgp
= NULL
;
11121 enum bgp_show_adj_route_type type
= bgp_show_adj_route_advertised
;
11123 bool uj
= use_json(argc
, argv
);
11128 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
11131 return CMD_WARNING
;
11133 /* neighbors <A.B.C.D|X:X::X:X|WORD> */
11134 argv_find(argv
, argc
, "neighbors", &idx
);
11135 peerstr
= argv
[++idx
]->arg
;
11137 peer
= peer_lookup_in_view(vty
, bgp
, peerstr
, uj
);
11139 return CMD_WARNING
;
11141 if (argv_find(argv
, argc
, "advertised-routes", &idx
))
11142 type
= bgp_show_adj_route_advertised
;
11143 else if (argv_find(argv
, argc
, "received-routes", &idx
))
11144 type
= bgp_show_adj_route_received
;
11145 else if (argv_find(argv
, argc
, "filtered-routes", &idx
))
11146 type
= bgp_show_adj_route_filtered
;
11148 if (argv_find(argv
, argc
, "route-map", &idx
))
11149 rmap_name
= argv
[++idx
]->arg
;
11151 return peer_adj_routes(vty
, peer
, afi
, safi
, type
, rmap_name
, uj
);
11154 DEFUN (show_ip_bgp_neighbor_received_prefix_filter
,
11155 show_ip_bgp_neighbor_received_prefix_filter_cmd
,
11156 "show [ip] bgp [<ipv4|ipv6> [unicast]] neighbors <A.B.C.D|X:X::X:X|WORD> received prefix-filter [json]",
11162 "Address Family modifier\n"
11163 "Detailed information on TCP and BGP neighbor connections\n"
11164 "Neighbor to display information about\n"
11165 "Neighbor to display information about\n"
11166 "Neighbor on BGP configured interface\n"
11167 "Display information received from a BGP neighbor\n"
11168 "Display the prefixlist filter\n"
11171 afi_t afi
= AFI_IP6
;
11172 safi_t safi
= SAFI_UNICAST
;
11173 char *peerstr
= NULL
;
11176 union sockunion su
;
11182 /* show [ip] bgp */
11183 if (argv_find(argv
, argc
, "ip", &idx
))
11185 /* [<ipv4|ipv6> [unicast]] */
11186 if (argv_find(argv
, argc
, "ipv4", &idx
))
11188 if (argv_find(argv
, argc
, "ipv6", &idx
))
11190 /* neighbors <A.B.C.D|X:X::X:X|WORD> */
11191 argv_find(argv
, argc
, "neighbors", &idx
);
11192 peerstr
= argv
[++idx
]->arg
;
11194 bool uj
= use_json(argc
, argv
);
11196 ret
= str2sockunion(peerstr
, &su
);
11198 peer
= peer_lookup_by_conf_if(NULL
, peerstr
);
11201 vty_out(vty
, "{}\n");
11204 "%% Malformed address or name: %s\n",
11206 return CMD_WARNING
;
11209 peer
= peer_lookup(NULL
, &su
);
11212 vty_out(vty
, "{}\n");
11214 vty_out(vty
, "No peer\n");
11215 return CMD_WARNING
;
11219 sprintf(name
, "%s.%d.%d", peer
->host
, afi
, safi
);
11220 count
= prefix_bgp_show_prefix_list(NULL
, afi
, name
, uj
);
11223 vty_out(vty
, "Address Family: %s\n",
11224 afi_safi_print(afi
, safi
));
11225 prefix_bgp_show_prefix_list(vty
, afi
, name
, uj
);
11228 vty_out(vty
, "{}\n");
11230 vty_out(vty
, "No functional output\n");
11233 return CMD_SUCCESS
;
11236 static int bgp_show_neighbor_route(struct vty
*vty
, struct peer
*peer
,
11237 afi_t afi
, safi_t safi
,
11238 enum bgp_show_type type
, bool use_json
)
11240 /* labeled-unicast routes live in the unicast table */
11241 if (safi
== SAFI_LABELED_UNICAST
)
11242 safi
= SAFI_UNICAST
;
11244 if (!peer
|| !peer
->afc
[afi
][safi
]) {
11246 json_object
*json_no
= NULL
;
11247 json_no
= json_object_new_object();
11248 json_object_string_add(
11249 json_no
, "warning",
11250 "No such neighbor or address family");
11251 vty_out(vty
, "%s\n",
11252 json_object_to_json_string(json_no
));
11253 json_object_free(json_no
);
11255 vty_out(vty
, "%% No such neighbor or address family\n");
11256 return CMD_WARNING
;
11259 return bgp_show(vty
, peer
->bgp
, afi
, safi
, type
, &peer
->su
, use_json
);
11262 DEFUN (show_ip_bgp_flowspec_routes_detailed
,
11263 show_ip_bgp_flowspec_routes_detailed_cmd
,
11264 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" flowspec] detail [json]",
11268 BGP_INSTANCE_HELP_STR
11271 "Detailed information on flowspec entries\n"
11274 afi_t afi
= AFI_IP
;
11275 safi_t safi
= SAFI_UNICAST
;
11276 struct bgp
*bgp
= NULL
;
11278 bool uj
= use_json(argc
, argv
);
11283 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
11286 return CMD_WARNING
;
11288 return bgp_show(vty
, bgp
, afi
, safi
, bgp_show_type_detail
, NULL
, uj
);
11291 DEFUN (show_ip_bgp_neighbor_routes
,
11292 show_ip_bgp_neighbor_routes_cmd
,
11293 "show [ip] bgp [<view|vrf> VIEWVRFNAME] ["BGP_AFI_CMD_STR
" ["BGP_SAFI_WITH_LABEL_CMD_STR
"]] "
11294 "neighbors <A.B.C.D|X:X::X:X|WORD> <flap-statistics|dampened-routes|routes> [json]",
11298 BGP_INSTANCE_HELP_STR
11300 BGP_SAFI_WITH_LABEL_HELP_STR
11301 "Detailed information on TCP and BGP neighbor connections\n"
11302 "Neighbor to display information about\n"
11303 "Neighbor to display information about\n"
11304 "Neighbor on BGP configured interface\n"
11305 "Display flap statistics of the routes learned from neighbor\n"
11306 "Display the dampened routes received from neighbor\n"
11307 "Display routes learned from neighbor\n"
11310 char *peerstr
= NULL
;
11311 struct bgp
*bgp
= NULL
;
11312 afi_t afi
= AFI_IP6
;
11313 safi_t safi
= SAFI_UNICAST
;
11315 enum bgp_show_type sh_type
= bgp_show_type_neighbor
;
11317 bool uj
= use_json(argc
, argv
);
11322 bgp_vty_find_and_parse_afi_safi_bgp(vty
, argv
, argc
, &idx
, &afi
, &safi
,
11325 return CMD_WARNING
;
11327 /* neighbors <A.B.C.D|X:X::X:X|WORD> */
11328 argv_find(argv
, argc
, "neighbors", &idx
);
11329 peerstr
= argv
[++idx
]->arg
;
11331 peer
= peer_lookup_in_view(vty
, bgp
, peerstr
, uj
);
11333 return CMD_WARNING
;
11335 if (argv_find(argv
, argc
, "flap-statistics", &idx
))
11336 sh_type
= bgp_show_type_flap_neighbor
;
11337 else if (argv_find(argv
, argc
, "dampened-routes", &idx
))
11338 sh_type
= bgp_show_type_damp_neighbor
;
11339 else if (argv_find(argv
, argc
, "routes", &idx
))
11340 sh_type
= bgp_show_type_neighbor
;
11342 return bgp_show_neighbor_route(vty
, peer
, afi
, safi
, sh_type
, uj
);
11345 struct bgp_table
*bgp_distance_table
[AFI_MAX
][SAFI_MAX
];
11347 struct bgp_distance
{
11348 /* Distance value for the IP source prefix. */
11351 /* Name of the access-list to be matched. */
11355 DEFUN (show_bgp_afi_vpn_rd_route
,
11356 show_bgp_afi_vpn_rd_route_cmd
,
11357 "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]",
11361 "Address Family modifier\n"
11362 "Display information for a route distinguisher\n"
11363 "Route Distinguisher\n"
11364 "Network in the BGP routing table to display\n"
11365 "Network in the BGP routing table to display\n"
11369 struct prefix_rd prd
;
11370 afi_t afi
= AFI_MAX
;
11373 if (!argv_find_and_parse_afi(argv
, argc
, &idx
, &afi
)) {
11374 vty_out(vty
, "%% Malformed Address Family\n");
11375 return CMD_WARNING
;
11378 ret
= str2prefix_rd(argv
[5]->arg
, &prd
);
11380 vty_out(vty
, "%% Malformed Route Distinguisher\n");
11381 return CMD_WARNING
;
11384 return bgp_show_route(vty
, NULL
, argv
[6]->arg
, afi
, SAFI_MPLS_VPN
, &prd
,
11385 0, BGP_PATH_SHOW_ALL
, use_json(argc
, argv
));
11388 static struct bgp_distance
*bgp_distance_new(void)
11390 return XCALLOC(MTYPE_BGP_DISTANCE
, sizeof(struct bgp_distance
));
11393 static void bgp_distance_free(struct bgp_distance
*bdistance
)
11395 XFREE(MTYPE_BGP_DISTANCE
, bdistance
);
11398 static int bgp_distance_set(struct vty
*vty
, const char *distance_str
,
11399 const char *ip_str
, const char *access_list_str
)
11406 struct bgp_node
*rn
;
11407 struct bgp_distance
*bdistance
;
11409 afi
= bgp_node_afi(vty
);
11410 safi
= bgp_node_safi(vty
);
11412 ret
= str2prefix(ip_str
, &p
);
11414 vty_out(vty
, "Malformed prefix\n");
11415 return CMD_WARNING_CONFIG_FAILED
;
11418 distance
= atoi(distance_str
);
11420 /* Get BGP distance node. */
11421 rn
= bgp_node_get(bgp_distance_table
[afi
][safi
], (struct prefix
*)&p
);
11422 bdistance
= bgp_node_get_bgp_distance_info(rn
);
11424 bgp_unlock_node(rn
);
11426 bdistance
= bgp_distance_new();
11427 bgp_node_set_bgp_distance_info(rn
, bdistance
);
11430 /* Set distance value. */
11431 bdistance
->distance
= distance
;
11433 /* Reset access-list configuration. */
11434 if (bdistance
->access_list
) {
11435 XFREE(MTYPE_AS_LIST
, bdistance
->access_list
);
11436 bdistance
->access_list
= NULL
;
11438 if (access_list_str
)
11439 bdistance
->access_list
=
11440 XSTRDUP(MTYPE_AS_LIST
, access_list_str
);
11442 return CMD_SUCCESS
;
11445 static int bgp_distance_unset(struct vty
*vty
, const char *distance_str
,
11446 const char *ip_str
, const char *access_list_str
)
11453 struct bgp_node
*rn
;
11454 struct bgp_distance
*bdistance
;
11456 afi
= bgp_node_afi(vty
);
11457 safi
= bgp_node_safi(vty
);
11459 ret
= str2prefix(ip_str
, &p
);
11461 vty_out(vty
, "Malformed prefix\n");
11462 return CMD_WARNING_CONFIG_FAILED
;
11465 rn
= bgp_node_lookup(bgp_distance_table
[afi
][safi
],
11466 (struct prefix
*)&p
);
11468 vty_out(vty
, "Can't find specified prefix\n");
11469 return CMD_WARNING_CONFIG_FAILED
;
11472 bdistance
= bgp_node_get_bgp_distance_info(rn
);
11473 distance
= atoi(distance_str
);
11475 if (bdistance
->distance
!= distance
) {
11476 vty_out(vty
, "Distance does not match configured\n");
11477 return CMD_WARNING_CONFIG_FAILED
;
11480 XFREE(MTYPE_AS_LIST
, bdistance
->access_list
);
11481 bgp_distance_free(bdistance
);
11483 bgp_node_set_bgp_path_info(rn
, NULL
);
11484 bgp_unlock_node(rn
);
11485 bgp_unlock_node(rn
);
11487 return CMD_SUCCESS
;
11490 /* Apply BGP information to distance method. */
11491 uint8_t bgp_distance_apply(struct prefix
*p
, struct bgp_path_info
*pinfo
,
11492 afi_t afi
, safi_t safi
, struct bgp
*bgp
)
11494 struct bgp_node
*rn
;
11497 struct bgp_distance
*bdistance
;
11498 struct access_list
*alist
;
11499 struct bgp_static
*bgp_static
;
11504 peer
= pinfo
->peer
;
11506 /* Check source address. */
11507 sockunion2hostprefix(&peer
->su
, &q
);
11508 rn
= bgp_node_match(bgp_distance_table
[afi
][safi
], &q
);
11510 bdistance
= bgp_node_get_bgp_distance_info(rn
);
11511 bgp_unlock_node(rn
);
11513 if (bdistance
->access_list
) {
11514 alist
= access_list_lookup(afi
, bdistance
->access_list
);
11516 && access_list_apply(alist
, p
) == FILTER_PERMIT
)
11517 return bdistance
->distance
;
11519 return bdistance
->distance
;
11522 /* Backdoor check. */
11523 rn
= bgp_node_lookup(bgp
->route
[afi
][safi
], p
);
11525 bgp_static
= bgp_node_get_bgp_static_info(rn
);
11526 bgp_unlock_node(rn
);
11528 if (bgp_static
->backdoor
) {
11529 if (bgp
->distance_local
[afi
][safi
])
11530 return bgp
->distance_local
[afi
][safi
];
11532 return ZEBRA_IBGP_DISTANCE_DEFAULT
;
11536 if (peer
->sort
== BGP_PEER_EBGP
) {
11537 if (bgp
->distance_ebgp
[afi
][safi
])
11538 return bgp
->distance_ebgp
[afi
][safi
];
11539 return ZEBRA_EBGP_DISTANCE_DEFAULT
;
11541 if (bgp
->distance_ibgp
[afi
][safi
])
11542 return bgp
->distance_ibgp
[afi
][safi
];
11543 return ZEBRA_IBGP_DISTANCE_DEFAULT
;
11547 DEFUN (bgp_distance
,
11549 "distance bgp (1-255) (1-255) (1-255)",
11550 "Define an administrative distance\n"
11552 "Distance for routes external to the AS\n"
11553 "Distance for routes internal to the AS\n"
11554 "Distance for local routes\n")
11556 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
11557 int idx_number
= 2;
11558 int idx_number_2
= 3;
11559 int idx_number_3
= 4;
11563 afi
= bgp_node_afi(vty
);
11564 safi
= bgp_node_safi(vty
);
11566 bgp
->distance_ebgp
[afi
][safi
] = atoi(argv
[idx_number
]->arg
);
11567 bgp
->distance_ibgp
[afi
][safi
] = atoi(argv
[idx_number_2
]->arg
);
11568 bgp
->distance_local
[afi
][safi
] = atoi(argv
[idx_number_3
]->arg
);
11569 return CMD_SUCCESS
;
11572 DEFUN (no_bgp_distance
,
11573 no_bgp_distance_cmd
,
11574 "no distance bgp [(1-255) (1-255) (1-255)]",
11576 "Define an administrative distance\n"
11578 "Distance for routes external to the AS\n"
11579 "Distance for routes internal to the AS\n"
11580 "Distance for local routes\n")
11582 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
11586 afi
= bgp_node_afi(vty
);
11587 safi
= bgp_node_safi(vty
);
11589 bgp
->distance_ebgp
[afi
][safi
] = 0;
11590 bgp
->distance_ibgp
[afi
][safi
] = 0;
11591 bgp
->distance_local
[afi
][safi
] = 0;
11592 return CMD_SUCCESS
;
11596 DEFUN (bgp_distance_source
,
11597 bgp_distance_source_cmd
,
11598 "distance (1-255) A.B.C.D/M",
11599 "Define an administrative distance\n"
11600 "Administrative distance\n"
11601 "IP source prefix\n")
11603 int idx_number
= 1;
11604 int idx_ipv4_prefixlen
= 2;
11605 bgp_distance_set(vty
, argv
[idx_number
]->arg
,
11606 argv
[idx_ipv4_prefixlen
]->arg
, NULL
);
11607 return CMD_SUCCESS
;
11610 DEFUN (no_bgp_distance_source
,
11611 no_bgp_distance_source_cmd
,
11612 "no distance (1-255) A.B.C.D/M",
11614 "Define an administrative distance\n"
11615 "Administrative distance\n"
11616 "IP source prefix\n")
11618 int idx_number
= 2;
11619 int idx_ipv4_prefixlen
= 3;
11620 bgp_distance_unset(vty
, argv
[idx_number
]->arg
,
11621 argv
[idx_ipv4_prefixlen
]->arg
, NULL
);
11622 return CMD_SUCCESS
;
11625 DEFUN (bgp_distance_source_access_list
,
11626 bgp_distance_source_access_list_cmd
,
11627 "distance (1-255) A.B.C.D/M WORD",
11628 "Define an administrative distance\n"
11629 "Administrative distance\n"
11630 "IP source prefix\n"
11631 "Access list name\n")
11633 int idx_number
= 1;
11634 int idx_ipv4_prefixlen
= 2;
11636 bgp_distance_set(vty
, argv
[idx_number
]->arg
,
11637 argv
[idx_ipv4_prefixlen
]->arg
, argv
[idx_word
]->arg
);
11638 return CMD_SUCCESS
;
11641 DEFUN (no_bgp_distance_source_access_list
,
11642 no_bgp_distance_source_access_list_cmd
,
11643 "no distance (1-255) A.B.C.D/M WORD",
11645 "Define an administrative distance\n"
11646 "Administrative distance\n"
11647 "IP source prefix\n"
11648 "Access list name\n")
11650 int idx_number
= 2;
11651 int idx_ipv4_prefixlen
= 3;
11653 bgp_distance_unset(vty
, argv
[idx_number
]->arg
,
11654 argv
[idx_ipv4_prefixlen
]->arg
, argv
[idx_word
]->arg
);
11655 return CMD_SUCCESS
;
11658 DEFUN (ipv6_bgp_distance_source
,
11659 ipv6_bgp_distance_source_cmd
,
11660 "distance (1-255) X:X::X:X/M",
11661 "Define an administrative distance\n"
11662 "Administrative distance\n"
11663 "IP source prefix\n")
11665 bgp_distance_set(vty
, argv
[1]->arg
, argv
[2]->arg
, NULL
);
11666 return CMD_SUCCESS
;
11669 DEFUN (no_ipv6_bgp_distance_source
,
11670 no_ipv6_bgp_distance_source_cmd
,
11671 "no distance (1-255) X:X::X:X/M",
11673 "Define an administrative distance\n"
11674 "Administrative distance\n"
11675 "IP source prefix\n")
11677 bgp_distance_unset(vty
, argv
[2]->arg
, argv
[3]->arg
, NULL
);
11678 return CMD_SUCCESS
;
11681 DEFUN (ipv6_bgp_distance_source_access_list
,
11682 ipv6_bgp_distance_source_access_list_cmd
,
11683 "distance (1-255) X:X::X:X/M WORD",
11684 "Define an administrative distance\n"
11685 "Administrative distance\n"
11686 "IP source prefix\n"
11687 "Access list name\n")
11689 bgp_distance_set(vty
, argv
[1]->arg
, argv
[2]->arg
, argv
[3]->arg
);
11690 return CMD_SUCCESS
;
11693 DEFUN (no_ipv6_bgp_distance_source_access_list
,
11694 no_ipv6_bgp_distance_source_access_list_cmd
,
11695 "no distance (1-255) X:X::X:X/M WORD",
11697 "Define an administrative distance\n"
11698 "Administrative distance\n"
11699 "IP source prefix\n"
11700 "Access list name\n")
11702 bgp_distance_unset(vty
, argv
[2]->arg
, argv
[3]->arg
, argv
[4]->arg
);
11703 return CMD_SUCCESS
;
11706 DEFUN (bgp_damp_set
,
11708 "bgp dampening [(1-45) [(1-20000) (1-20000) (1-255)]]",
11709 "BGP Specific commands\n"
11710 "Enable route-flap dampening\n"
11711 "Half-life time for the penalty\n"
11712 "Value to start reusing a route\n"
11713 "Value to start suppressing a route\n"
11714 "Maximum duration to suppress a stable route\n")
11716 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
11717 int idx_half_life
= 2;
11719 int idx_suppress
= 4;
11720 int idx_max_suppress
= 5;
11721 int half
= DEFAULT_HALF_LIFE
* 60;
11722 int reuse
= DEFAULT_REUSE
;
11723 int suppress
= DEFAULT_SUPPRESS
;
11724 int max
= 4 * half
;
11727 half
= atoi(argv
[idx_half_life
]->arg
) * 60;
11728 reuse
= atoi(argv
[idx_reuse
]->arg
);
11729 suppress
= atoi(argv
[idx_suppress
]->arg
);
11730 max
= atoi(argv
[idx_max_suppress
]->arg
) * 60;
11731 } else if (argc
== 3) {
11732 half
= atoi(argv
[idx_half_life
]->arg
) * 60;
11736 if (suppress
< reuse
) {
11738 "Suppress value cannot be less than reuse value \n");
11742 return bgp_damp_enable(bgp
, bgp_node_afi(vty
), bgp_node_safi(vty
), half
,
11743 reuse
, suppress
, max
);
11746 DEFUN (bgp_damp_unset
,
11747 bgp_damp_unset_cmd
,
11748 "no bgp dampening [(1-45) [(1-20000) (1-20000) (1-255)]]",
11750 "BGP Specific commands\n"
11751 "Enable route-flap dampening\n"
11752 "Half-life time for the penalty\n"
11753 "Value to start reusing a route\n"
11754 "Value to start suppressing a route\n"
11755 "Maximum duration to suppress a stable route\n")
11757 VTY_DECLVAR_CONTEXT(bgp
, bgp
);
11758 return bgp_damp_disable(bgp
, bgp_node_afi(vty
), bgp_node_safi(vty
));
11761 /* Display specified route of BGP table. */
11762 static int bgp_clear_damp_route(struct vty
*vty
, const char *view_name
,
11763 const char *ip_str
, afi_t afi
, safi_t safi
,
11764 struct prefix_rd
*prd
, int prefix_check
)
11767 struct prefix match
;
11768 struct bgp_node
*rn
;
11769 struct bgp_node
*rm
;
11770 struct bgp_path_info
*pi
;
11771 struct bgp_path_info
*pi_temp
;
11773 struct bgp_table
*table
;
11775 /* BGP structure lookup. */
11777 bgp
= bgp_lookup_by_name(view_name
);
11779 vty_out(vty
, "%% Can't find BGP instance %s\n",
11781 return CMD_WARNING
;
11784 bgp
= bgp_get_default();
11786 vty_out(vty
, "%% No BGP process is configured\n");
11787 return CMD_WARNING
;
11791 /* Check IP address argument. */
11792 ret
= str2prefix(ip_str
, &match
);
11794 vty_out(vty
, "%% address is malformed\n");
11795 return CMD_WARNING
;
11798 match
.family
= afi2family(afi
);
11800 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_ENCAP
)
11801 || (safi
== SAFI_EVPN
)) {
11802 for (rn
= bgp_table_top(bgp
->rib
[AFI_IP
][safi
]); rn
;
11803 rn
= bgp_route_next(rn
)) {
11804 if (prd
&& memcmp(rn
->p
.u
.val
, prd
->val
, 8) != 0)
11806 table
= bgp_node_get_bgp_table_info(rn
);
11809 if ((rm
= bgp_node_match(table
, &match
)) == NULL
)
11813 || rm
->p
.prefixlen
== match
.prefixlen
) {
11814 pi
= bgp_node_get_bgp_path_info(rm
);
11816 if (pi
->extra
&& pi
->extra
->damp_info
) {
11817 pi_temp
= pi
->next
;
11818 bgp_damp_info_free(
11819 pi
->extra
->damp_info
,
11827 bgp_unlock_node(rm
);
11830 if ((rn
= bgp_node_match(bgp
->rib
[afi
][safi
], &match
))
11833 || rn
->p
.prefixlen
== match
.prefixlen
) {
11834 pi
= bgp_node_get_bgp_path_info(rn
);
11836 if (pi
->extra
&& pi
->extra
->damp_info
) {
11837 pi_temp
= pi
->next
;
11838 bgp_damp_info_free(
11839 pi
->extra
->damp_info
,
11847 bgp_unlock_node(rn
);
11851 return CMD_SUCCESS
;
11854 DEFUN (clear_ip_bgp_dampening
,
11855 clear_ip_bgp_dampening_cmd
,
11856 "clear ip bgp dampening",
11860 "Clear route flap dampening information\n")
11862 bgp_damp_info_clean();
11863 return CMD_SUCCESS
;
11866 DEFUN (clear_ip_bgp_dampening_prefix
,
11867 clear_ip_bgp_dampening_prefix_cmd
,
11868 "clear ip bgp dampening A.B.C.D/M",
11872 "Clear route flap dampening information\n"
11875 int idx_ipv4_prefixlen
= 4;
11876 return bgp_clear_damp_route(vty
, NULL
, argv
[idx_ipv4_prefixlen
]->arg
,
11877 AFI_IP
, SAFI_UNICAST
, NULL
, 1);
11880 DEFUN (clear_ip_bgp_dampening_address
,
11881 clear_ip_bgp_dampening_address_cmd
,
11882 "clear ip bgp dampening A.B.C.D",
11886 "Clear route flap dampening information\n"
11887 "Network to clear damping information\n")
11890 return bgp_clear_damp_route(vty
, NULL
, argv
[idx_ipv4
]->arg
, AFI_IP
,
11891 SAFI_UNICAST
, NULL
, 0);
11894 DEFUN (clear_ip_bgp_dampening_address_mask
,
11895 clear_ip_bgp_dampening_address_mask_cmd
,
11896 "clear ip bgp dampening A.B.C.D A.B.C.D",
11900 "Clear route flap dampening information\n"
11901 "Network to clear damping information\n"
11905 int idx_ipv4_2
= 5;
11907 char prefix_str
[BUFSIZ
];
11909 ret
= netmask_str2prefix_str(argv
[idx_ipv4
]->arg
, argv
[idx_ipv4_2
]->arg
,
11912 vty_out(vty
, "%% Inconsistent address and mask\n");
11913 return CMD_WARNING
;
11916 return bgp_clear_damp_route(vty
, NULL
, prefix_str
, AFI_IP
, SAFI_UNICAST
,
11920 static void show_bgp_peerhash_entry(struct hash_bucket
*bucket
, void *arg
)
11922 struct vty
*vty
= arg
;
11923 struct peer
*peer
= bucket
->data
;
11924 char buf
[SU_ADDRSTRLEN
];
11926 vty_out(vty
, "\tPeer: %s %s\n", peer
->host
,
11927 sockunion2str(&peer
->su
, buf
, sizeof(buf
)));
11930 DEFUN (show_bgp_peerhash
,
11931 show_bgp_peerhash_cmd
,
11932 "show bgp peerhash",
11935 "Display information about the BGP peerhash\n")
11937 struct list
*instances
= bm
->bgp
;
11938 struct listnode
*node
;
11941 for (ALL_LIST_ELEMENTS_RO(instances
, node
, bgp
)) {
11942 vty_out(vty
, "BGP: %s\n", bgp
->name
);
11943 hash_iterate(bgp
->peerhash
, show_bgp_peerhash_entry
,
11947 return CMD_SUCCESS
;
11950 /* also used for encap safi */
11951 static void bgp_config_write_network_vpn(struct vty
*vty
, struct bgp
*bgp
,
11952 afi_t afi
, safi_t safi
)
11954 struct bgp_node
*prn
;
11955 struct bgp_node
*rn
;
11956 struct bgp_table
*table
;
11958 struct prefix_rd
*prd
;
11959 struct bgp_static
*bgp_static
;
11960 mpls_label_t label
;
11961 char buf
[SU_ADDRSTRLEN
];
11962 char rdbuf
[RD_ADDRSTRLEN
];
11964 /* Network configuration. */
11965 for (prn
= bgp_table_top(bgp
->route
[afi
][safi
]); prn
;
11966 prn
= bgp_route_next(prn
)) {
11967 table
= bgp_node_get_bgp_table_info(prn
);
11971 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
)) {
11972 bgp_static
= bgp_node_get_bgp_static_info(rn
);
11973 if (bgp_static
== NULL
)
11977 prd
= (struct prefix_rd
*)&prn
->p
;
11979 /* "network" configuration display. */
11980 prefix_rd2str(prd
, rdbuf
, sizeof(rdbuf
));
11981 label
= decode_label(&bgp_static
->label
);
11983 vty_out(vty
, " network %s/%d rd %s",
11984 inet_ntop(p
->family
, &p
->u
.prefix
, buf
,
11986 p
->prefixlen
, rdbuf
);
11987 if (safi
== SAFI_MPLS_VPN
)
11988 vty_out(vty
, " label %u", label
);
11990 if (bgp_static
->rmap
.name
)
11991 vty_out(vty
, " route-map %s",
11992 bgp_static
->rmap
.name
);
11994 if (bgp_static
->backdoor
)
11995 vty_out(vty
, " backdoor");
11997 vty_out(vty
, "\n");
12002 static void bgp_config_write_network_evpn(struct vty
*vty
, struct bgp
*bgp
,
12003 afi_t afi
, safi_t safi
)
12005 struct bgp_node
*prn
;
12006 struct bgp_node
*rn
;
12007 struct bgp_table
*table
;
12009 struct prefix_rd
*prd
;
12010 struct bgp_static
*bgp_static
;
12011 char buf
[PREFIX_STRLEN
* 2];
12012 char buf2
[SU_ADDRSTRLEN
];
12013 char rdbuf
[RD_ADDRSTRLEN
];
12015 /* Network configuration. */
12016 for (prn
= bgp_table_top(bgp
->route
[afi
][safi
]); prn
;
12017 prn
= bgp_route_next(prn
)) {
12018 table
= bgp_node_get_bgp_table_info(prn
);
12022 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
)) {
12023 bgp_static
= bgp_node_get_bgp_static_info(rn
);
12024 if (bgp_static
== NULL
)
12027 char *macrouter
= NULL
;
12030 if (bgp_static
->router_mac
)
12031 macrouter
= prefix_mac2str(
12032 bgp_static
->router_mac
, NULL
, 0);
12033 if (bgp_static
->eth_s_id
)
12034 esi
= esi2str(bgp_static
->eth_s_id
);
12036 prd
= (struct prefix_rd
*)&prn
->p
;
12038 /* "network" configuration display. */
12039 prefix_rd2str(prd
, rdbuf
, sizeof(rdbuf
));
12040 if (p
->u
.prefix_evpn
.route_type
== 5) {
12041 char local_buf
[PREFIX_STRLEN
];
12042 uint8_t family
= is_evpn_prefix_ipaddr_v4((
12043 struct prefix_evpn
*)p
)
12047 &p
->u
.prefix_evpn
.prefix_addr
.ip
.ip
.addr
,
12048 local_buf
, PREFIX_STRLEN
);
12049 sprintf(buf
, "%s/%u", local_buf
,
12050 p
->u
.prefix_evpn
.prefix_addr
.ip_prefix_length
);
12052 prefix2str(p
, buf
, sizeof(buf
));
12055 if (bgp_static
->gatewayIp
.family
== AF_INET
12056 || bgp_static
->gatewayIp
.family
== AF_INET6
)
12057 inet_ntop(bgp_static
->gatewayIp
.family
,
12058 &bgp_static
->gatewayIp
.u
.prefix
, buf2
,
12061 " network %s rd %s ethtag %u label %u esi %s gwip %s routermac %s\n",
12063 p
->u
.prefix_evpn
.prefix_addr
.eth_tag
,
12064 decode_label(&bgp_static
->label
), esi
, buf2
,
12067 XFREE(MTYPE_TMP
, macrouter
);
12068 XFREE(MTYPE_TMP
, esi
);
12073 /* Configuration of static route announcement and aggregate
12075 void bgp_config_write_network(struct vty
*vty
, struct bgp
*bgp
, afi_t afi
,
12078 struct bgp_node
*rn
;
12080 struct bgp_static
*bgp_static
;
12081 struct bgp_aggregate
*bgp_aggregate
;
12082 char buf
[SU_ADDRSTRLEN
];
12084 if ((safi
== SAFI_MPLS_VPN
) || (safi
== SAFI_ENCAP
)) {
12085 bgp_config_write_network_vpn(vty
, bgp
, afi
, safi
);
12089 if (afi
== AFI_L2VPN
&& safi
== SAFI_EVPN
) {
12090 bgp_config_write_network_evpn(vty
, bgp
, afi
, safi
);
12094 /* Network configuration. */
12095 for (rn
= bgp_table_top(bgp
->route
[afi
][safi
]); rn
;
12096 rn
= bgp_route_next(rn
)) {
12097 bgp_static
= bgp_node_get_bgp_static_info(rn
);
12098 if (bgp_static
== NULL
)
12103 /* "network" configuration display. */
12104 if (bgp_option_check(BGP_OPT_CONFIG_CISCO
) && afi
== AFI_IP
) {
12105 uint32_t destination
;
12106 struct in_addr netmask
;
12108 destination
= ntohl(p
->u
.prefix4
.s_addr
);
12109 masklen2ip(p
->prefixlen
, &netmask
);
12110 vty_out(vty
, " network %s",
12111 inet_ntop(p
->family
, &p
->u
.prefix
, buf
,
12114 if ((IN_CLASSC(destination
) && p
->prefixlen
== 24)
12115 || (IN_CLASSB(destination
) && p
->prefixlen
== 16)
12116 || (IN_CLASSA(destination
) && p
->prefixlen
== 8)
12117 || p
->u
.prefix4
.s_addr
== 0) {
12118 /* Natural mask is not display. */
12120 vty_out(vty
, " mask %s", inet_ntoa(netmask
));
12122 vty_out(vty
, " network %s/%d",
12123 inet_ntop(p
->family
, &p
->u
.prefix
, buf
,
12128 if (bgp_static
->label_index
!= BGP_INVALID_LABEL_INDEX
)
12129 vty_out(vty
, " label-index %u",
12130 bgp_static
->label_index
);
12132 if (bgp_static
->rmap
.name
)
12133 vty_out(vty
, " route-map %s", bgp_static
->rmap
.name
);
12135 if (bgp_static
->backdoor
)
12136 vty_out(vty
, " backdoor");
12138 vty_out(vty
, "\n");
12141 /* Aggregate-address configuration. */
12142 for (rn
= bgp_table_top(bgp
->aggregate
[afi
][safi
]); rn
;
12143 rn
= bgp_route_next(rn
)) {
12144 bgp_aggregate
= bgp_node_get_bgp_aggregate_info(rn
);
12145 if (bgp_aggregate
== NULL
)
12150 if (bgp_option_check(BGP_OPT_CONFIG_CISCO
) && afi
== AFI_IP
) {
12151 struct in_addr netmask
;
12153 masklen2ip(p
->prefixlen
, &netmask
);
12154 vty_out(vty
, " aggregate-address %s %s",
12155 inet_ntop(p
->family
, &p
->u
.prefix
, buf
,
12157 inet_ntoa(netmask
));
12159 vty_out(vty
, " aggregate-address %s/%d",
12160 inet_ntop(p
->family
, &p
->u
.prefix
, buf
,
12165 if (bgp_aggregate
->as_set
)
12166 vty_out(vty
, " as-set");
12168 if (bgp_aggregate
->summary_only
)
12169 vty_out(vty
, " summary-only");
12171 vty_out(vty
, "\n");
12175 void bgp_config_write_distance(struct vty
*vty
, struct bgp
*bgp
, afi_t afi
,
12178 struct bgp_node
*rn
;
12179 struct bgp_distance
*bdistance
;
12181 /* Distance configuration. */
12182 if (bgp
->distance_ebgp
[afi
][safi
] && bgp
->distance_ibgp
[afi
][safi
]
12183 && bgp
->distance_local
[afi
][safi
]
12184 && (bgp
->distance_ebgp
[afi
][safi
] != ZEBRA_EBGP_DISTANCE_DEFAULT
12185 || bgp
->distance_ibgp
[afi
][safi
] != ZEBRA_IBGP_DISTANCE_DEFAULT
12186 || bgp
->distance_local
[afi
][safi
]
12187 != ZEBRA_IBGP_DISTANCE_DEFAULT
)) {
12188 vty_out(vty
, " distance bgp %d %d %d\n",
12189 bgp
->distance_ebgp
[afi
][safi
],
12190 bgp
->distance_ibgp
[afi
][safi
],
12191 bgp
->distance_local
[afi
][safi
]);
12194 for (rn
= bgp_table_top(bgp_distance_table
[afi
][safi
]); rn
;
12195 rn
= bgp_route_next(rn
)) {
12196 bdistance
= bgp_node_get_bgp_distance_info(rn
);
12197 if (bdistance
!= NULL
) {
12198 char buf
[PREFIX_STRLEN
];
12200 vty_out(vty
, " distance %d %s %s\n",
12201 bdistance
->distance
,
12202 prefix2str(&rn
->p
, buf
, sizeof(buf
)),
12203 bdistance
->access_list
? bdistance
->access_list
12209 /* Allocate routing table structure and install commands. */
12210 void bgp_route_init(void)
12215 /* Init BGP distance table. */
12216 FOREACH_AFI_SAFI (afi
, safi
)
12217 bgp_distance_table
[afi
][safi
] = bgp_table_init(NULL
, afi
, safi
);
12219 /* IPv4 BGP commands. */
12220 install_element(BGP_NODE
, &bgp_table_map_cmd
);
12221 install_element(BGP_NODE
, &bgp_network_cmd
);
12222 install_element(BGP_NODE
, &no_bgp_table_map_cmd
);
12224 install_element(BGP_NODE
, &aggregate_address_cmd
);
12225 install_element(BGP_NODE
, &aggregate_address_mask_cmd
);
12226 install_element(BGP_NODE
, &no_aggregate_address_cmd
);
12227 install_element(BGP_NODE
, &no_aggregate_address_mask_cmd
);
12229 /* IPv4 unicast configuration. */
12230 install_element(BGP_IPV4_NODE
, &bgp_table_map_cmd
);
12231 install_element(BGP_IPV4_NODE
, &bgp_network_cmd
);
12232 install_element(BGP_IPV4_NODE
, &no_bgp_table_map_cmd
);
12234 install_element(BGP_IPV4_NODE
, &aggregate_address_cmd
);
12235 install_element(BGP_IPV4_NODE
, &aggregate_address_mask_cmd
);
12236 install_element(BGP_IPV4_NODE
, &no_aggregate_address_cmd
);
12237 install_element(BGP_IPV4_NODE
, &no_aggregate_address_mask_cmd
);
12239 /* IPv4 multicast configuration. */
12240 install_element(BGP_IPV4M_NODE
, &bgp_table_map_cmd
);
12241 install_element(BGP_IPV4M_NODE
, &bgp_network_cmd
);
12242 install_element(BGP_IPV4M_NODE
, &no_bgp_table_map_cmd
);
12243 install_element(BGP_IPV4M_NODE
, &aggregate_address_cmd
);
12244 install_element(BGP_IPV4M_NODE
, &aggregate_address_mask_cmd
);
12245 install_element(BGP_IPV4M_NODE
, &no_aggregate_address_cmd
);
12246 install_element(BGP_IPV4M_NODE
, &no_aggregate_address_mask_cmd
);
12248 /* IPv4 labeled-unicast configuration. */
12249 install_element(VIEW_NODE
, &show_ip_bgp_instance_all_cmd
);
12250 install_element(VIEW_NODE
, &show_ip_bgp_cmd
);
12251 install_element(VIEW_NODE
, &show_ip_bgp_json_cmd
);
12252 install_element(VIEW_NODE
, &show_ip_bgp_route_cmd
);
12253 install_element(VIEW_NODE
, &show_ip_bgp_regexp_cmd
);
12255 install_element(VIEW_NODE
,
12256 &show_ip_bgp_instance_neighbor_advertised_route_cmd
);
12257 install_element(VIEW_NODE
, &show_ip_bgp_neighbor_routes_cmd
);
12258 install_element(VIEW_NODE
,
12259 &show_ip_bgp_neighbor_received_prefix_filter_cmd
);
12260 #ifdef KEEP_OLD_VPN_COMMANDS
12261 install_element(VIEW_NODE
, &show_ip_bgp_vpn_all_route_prefix_cmd
);
12262 #endif /* KEEP_OLD_VPN_COMMANDS */
12263 install_element(VIEW_NODE
, &show_bgp_afi_vpn_rd_route_cmd
);
12264 install_element(VIEW_NODE
,
12265 &show_ip_bgp_l2vpn_evpn_all_route_prefix_cmd
);
12267 /* BGP dampening clear commands */
12268 install_element(ENABLE_NODE
, &clear_ip_bgp_dampening_cmd
);
12269 install_element(ENABLE_NODE
, &clear_ip_bgp_dampening_prefix_cmd
);
12271 install_element(ENABLE_NODE
, &clear_ip_bgp_dampening_address_cmd
);
12272 install_element(ENABLE_NODE
, &clear_ip_bgp_dampening_address_mask_cmd
);
12275 install_element(ENABLE_NODE
,
12276 &show_ip_bgp_instance_neighbor_prefix_counts_cmd
);
12277 #ifdef KEEP_OLD_VPN_COMMANDS
12278 install_element(ENABLE_NODE
,
12279 &show_ip_bgp_vpn_neighbor_prefix_counts_cmd
);
12280 #endif /* KEEP_OLD_VPN_COMMANDS */
12282 /* New config IPv6 BGP commands. */
12283 install_element(BGP_IPV6_NODE
, &bgp_table_map_cmd
);
12284 install_element(BGP_IPV6_NODE
, &ipv6_bgp_network_cmd
);
12285 install_element(BGP_IPV6_NODE
, &no_bgp_table_map_cmd
);
12287 install_element(BGP_IPV6_NODE
, &ipv6_aggregate_address_cmd
);
12288 install_element(BGP_IPV6_NODE
, &no_ipv6_aggregate_address_cmd
);
12290 install_element(BGP_IPV6M_NODE
, &ipv6_bgp_network_cmd
);
12292 install_element(BGP_NODE
, &bgp_distance_cmd
);
12293 install_element(BGP_NODE
, &no_bgp_distance_cmd
);
12294 install_element(BGP_NODE
, &bgp_distance_source_cmd
);
12295 install_element(BGP_NODE
, &no_bgp_distance_source_cmd
);
12296 install_element(BGP_NODE
, &bgp_distance_source_access_list_cmd
);
12297 install_element(BGP_NODE
, &no_bgp_distance_source_access_list_cmd
);
12298 install_element(BGP_IPV4_NODE
, &bgp_distance_cmd
);
12299 install_element(BGP_IPV4_NODE
, &no_bgp_distance_cmd
);
12300 install_element(BGP_IPV4_NODE
, &bgp_distance_source_cmd
);
12301 install_element(BGP_IPV4_NODE
, &no_bgp_distance_source_cmd
);
12302 install_element(BGP_IPV4_NODE
, &bgp_distance_source_access_list_cmd
);
12303 install_element(BGP_IPV4_NODE
, &no_bgp_distance_source_access_list_cmd
);
12304 install_element(BGP_IPV4M_NODE
, &bgp_distance_cmd
);
12305 install_element(BGP_IPV4M_NODE
, &no_bgp_distance_cmd
);
12306 install_element(BGP_IPV4M_NODE
, &bgp_distance_source_cmd
);
12307 install_element(BGP_IPV4M_NODE
, &no_bgp_distance_source_cmd
);
12308 install_element(BGP_IPV4M_NODE
, &bgp_distance_source_access_list_cmd
);
12309 install_element(BGP_IPV4M_NODE
,
12310 &no_bgp_distance_source_access_list_cmd
);
12311 install_element(BGP_IPV6_NODE
, &bgp_distance_cmd
);
12312 install_element(BGP_IPV6_NODE
, &no_bgp_distance_cmd
);
12313 install_element(BGP_IPV6_NODE
, &ipv6_bgp_distance_source_cmd
);
12314 install_element(BGP_IPV6_NODE
, &no_ipv6_bgp_distance_source_cmd
);
12315 install_element(BGP_IPV6_NODE
,
12316 &ipv6_bgp_distance_source_access_list_cmd
);
12317 install_element(BGP_IPV6_NODE
,
12318 &no_ipv6_bgp_distance_source_access_list_cmd
);
12319 install_element(BGP_IPV6M_NODE
, &bgp_distance_cmd
);
12320 install_element(BGP_IPV6M_NODE
, &no_bgp_distance_cmd
);
12321 install_element(BGP_IPV6M_NODE
, &ipv6_bgp_distance_source_cmd
);
12322 install_element(BGP_IPV6M_NODE
, &no_ipv6_bgp_distance_source_cmd
);
12323 install_element(BGP_IPV6M_NODE
,
12324 &ipv6_bgp_distance_source_access_list_cmd
);
12325 install_element(BGP_IPV6M_NODE
,
12326 &no_ipv6_bgp_distance_source_access_list_cmd
);
12328 install_element(BGP_NODE
, &bgp_damp_set_cmd
);
12329 install_element(BGP_NODE
, &bgp_damp_unset_cmd
);
12330 install_element(BGP_IPV4_NODE
, &bgp_damp_set_cmd
);
12331 install_element(BGP_IPV4_NODE
, &bgp_damp_unset_cmd
);
12333 /* IPv4 Multicast Mode */
12334 install_element(BGP_IPV4M_NODE
, &bgp_damp_set_cmd
);
12335 install_element(BGP_IPV4M_NODE
, &bgp_damp_unset_cmd
);
12337 /* Large Communities */
12338 install_element(VIEW_NODE
, &show_ip_bgp_large_community_list_cmd
);
12339 install_element(VIEW_NODE
, &show_ip_bgp_large_community_cmd
);
12341 /* show bgp ipv4 flowspec detailed */
12342 install_element(VIEW_NODE
, &show_ip_bgp_flowspec_routes_detailed_cmd
);
12344 install_element(VIEW_NODE
, &show_bgp_peerhash_cmd
);
12347 void bgp_route_finish(void)
12352 FOREACH_AFI_SAFI (afi
, safi
) {
12353 bgp_table_unlock(bgp_distance_table
[afi
][safi
]);
12354 bgp_distance_table
[afi
][safi
] = NULL
;