1 /* BGP routing information base
2 * Copyright (C) 1996, 97, 98, 2000 Kunihiro Ishiguro
4 * This file is part of GNU Zebra.
6 * GNU Zebra is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2, or (at your option) any
11 * GNU Zebra is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
16 * You should have received a copy of the GNU General Public License along
17 * with this program; see the file COPYING; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
21 #ifndef _QUAGGA_BGP_ROUTE_H
22 #define _QUAGGA_BGP_ROUTE_H
29 #include "bgp_table.h"
30 #include "bgp_addpath_types.h"
32 struct bgp_nexthop_cache
;
33 struct bgp_route_evpn
;
38 bgp_show_type_prefix_list
,
39 bgp_show_type_filter_list
,
40 bgp_show_type_route_map
,
41 bgp_show_type_neighbor
,
42 bgp_show_type_cidr_only
,
43 bgp_show_type_prefix_longer
,
44 bgp_show_type_community_all
,
45 bgp_show_type_community
,
46 bgp_show_type_community_exact
,
47 bgp_show_type_community_list
,
48 bgp_show_type_community_list_exact
,
49 bgp_show_type_lcommunity_all
,
50 bgp_show_type_lcommunity
,
51 bgp_show_type_lcommunity_exact
,
52 bgp_show_type_lcommunity_list
,
53 bgp_show_type_lcommunity_list_exact
,
54 bgp_show_type_flap_statistics
,
55 bgp_show_type_flap_neighbor
,
56 bgp_show_type_dampend_paths
,
57 bgp_show_type_damp_neighbor
,
61 enum bgp_show_adj_route_type
{
62 bgp_show_adj_route_advertised
,
63 bgp_show_adj_route_received
,
64 bgp_show_adj_route_filtered
,
68 #define BGP_SHOW_SCODE_HEADER \
69 "Status codes: s suppressed, d damped, " \
70 "h history, * valid, > best, = multipath,\n" \
71 " i internal, r RIB-failure, S Stale, R Removed\n"
72 #define BGP_SHOW_OCODE_HEADER "Origin codes: i - IGP, e - EGP, ? - incomplete\n\n"
73 #define BGP_SHOW_NCODE_HEADER "Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self\n"
74 #define BGP_SHOW_HEADER " Network Next Hop Metric LocPrf Weight Path\n"
76 /* Maximum number of labels we can process or send with a prefix. We
77 * really do only 1 for MPLS (BGP-LU) but we can do 2 for EVPN-VxLAN.
79 #define BGP_MAX_LABELS 2
81 /* Maximum number of sids we can process or send with a prefix. */
82 #define BGP_MAX_SIDS 6
84 /* Error codes for handling NLRI */
85 #define BGP_NLRI_PARSE_OK 0
86 #define BGP_NLRI_PARSE_ERROR_PREFIX_OVERFLOW -1
87 #define BGP_NLRI_PARSE_ERROR_PACKET_OVERFLOW -2
88 #define BGP_NLRI_PARSE_ERROR_PREFIX_LENGTH -3
89 #define BGP_NLRI_PARSE_ERROR_PACKET_LENGTH -4
90 #define BGP_NLRI_PARSE_ERROR_LABEL_LENGTH -5
91 #define BGP_NLRI_PARSE_ERROR_EVPN_MISSING_TYPE -6
92 #define BGP_NLRI_PARSE_ERROR_EVPN_TYPE2_SIZE -7
93 #define BGP_NLRI_PARSE_ERROR_EVPN_TYPE3_SIZE -8
94 #define BGP_NLRI_PARSE_ERROR_EVPN_TYPE4_SIZE -9
95 #define BGP_NLRI_PARSE_ERROR_EVPN_TYPE5_SIZE -10
96 #define BGP_NLRI_PARSE_ERROR_FLOWSPEC_IPV6_NOT_SUPPORTED -11
97 #define BGP_NLRI_PARSE_ERROR_FLOWSPEC_NLRI_SIZELIMIT -12
98 #define BGP_NLRI_PARSE_ERROR_FLOWSPEC_BAD_FORMAT -13
99 #define BGP_NLRI_PARSE_ERROR_ADDRESS_FAMILY -14
100 #define BGP_NLRI_PARSE_ERROR -32
102 /* Ancillary information to struct bgp_path_info,
103 * used for uncommonly used data (aggregation, MPLS, etc.)
104 * and lazily allocated to save memory.
106 struct bgp_path_info_extra
{
107 /* Pointer to dampening structure. */
108 struct bgp_damp_info
*damp_info
;
110 /* This route is suppressed with aggregation. */
113 /* Nexthop reachability check. */
116 /* MPLS label(s) - VNI(s) for EVPN-VxLAN */
117 mpls_label_t label
[BGP_MAX_LABELS
];
120 /* af specific flags */
122 #define BGP_EVPN_MACIP_TYPE_SVI_IP (1 << 0)
124 /* SRv6 SID(s) for SRv6-VPN */
125 struct in6_addr sid
[BGP_MAX_SIDS
];
132 void *rfapi_handle
; /* export: NVE advertising this
134 struct list
*local_nexthops
; /* optional, for static
139 struct thread
*timer
;
140 void *hme
; /* encap monitor, if this is a VPN route */
142 rd
; /* import: route's route-distinguisher */
143 uint8_t un_family
; /* family of cached un address, 0 if
146 struct in_addr addr4
;
147 struct in6_addr addr6
;
148 } un
; /* cached un address */
150 struct prefix aux_prefix
; /* AFI_L2VPN: the IP addr,
157 /* For imported routes into a VNI (or VRF), this points to the parent.
162 * Some tunnelish parameters follow. Maybe consolidate into an
163 * internal tunnel structure?
167 * Original bgp instance for imported routes. Needed for:
168 * 1. Find all routes from a specific vrf for deletion
169 * 2. vrf context of original nexthop
171 * Store pointer to bgp instance rather than bgp->vrf_id because
172 * bgp->vrf_id is not always valid (or may change?).
174 * Set to NULL if route is not imported from another bgp instance.
176 struct bgp
*bgp_orig
;
179 * Nexthop in context of original bgp instance. Needed
180 * for label resolution of core mpls routes exported to a vrf.
181 * Set nexthop_orig.family to 0 if not valid.
183 struct prefix nexthop_orig
;
184 /* presence of FS pbr firewall based entry */
185 struct list
*bgp_fs_pbr
;
186 /* presence of FS pbr iprule based entry */
187 struct list
*bgp_fs_iprule
;
190 struct bgp_path_info
{
191 /* For linked list. */
192 struct bgp_path_info
*next
;
193 struct bgp_path_info
*prev
;
195 /* For nexthop linked list */
196 LIST_ENTRY(bgp_path_info
) nh_thread
;
198 /* Back pointer to the prefix node */
199 struct bgp_node
*net
;
201 /* Back pointer to the nexthop structure */
202 struct bgp_nexthop_cache
*nexthop
;
204 /* Peer structure. */
207 /* Attribute structure. */
210 /* Extra information */
211 struct bgp_path_info_extra
*extra
;
214 /* Multipath information */
215 struct bgp_path_info_mpath
*mpath
;
220 /* reference count */
223 /* BGP information status. */
225 #define BGP_PATH_IGP_CHANGED (1 << 0)
226 #define BGP_PATH_DAMPED (1 << 1)
227 #define BGP_PATH_HISTORY (1 << 2)
228 #define BGP_PATH_SELECTED (1 << 3)
229 #define BGP_PATH_VALID (1 << 4)
230 #define BGP_PATH_ATTR_CHANGED (1 << 5)
231 #define BGP_PATH_DMED_CHECK (1 << 6)
232 #define BGP_PATH_DMED_SELECTED (1 << 7)
233 #define BGP_PATH_STALE (1 << 8)
234 #define BGP_PATH_REMOVED (1 << 9)
235 #define BGP_PATH_COUNTED (1 << 10)
236 #define BGP_PATH_MULTIPATH (1 << 11)
237 #define BGP_PATH_MULTIPATH_CHG (1 << 12)
238 #define BGP_PATH_RIB_ATTR_CHG (1 << 13)
239 #define BGP_PATH_ANNC_NH_SELF (1 << 14)
241 /* BGP route type. This can be static, RIP, OSPF, BGP etc. */
244 /* When above type is BGP. This sub type specify BGP sub type
247 #define BGP_ROUTE_NORMAL 0
248 #define BGP_ROUTE_STATIC 1
249 #define BGP_ROUTE_AGGREGATE 2
250 #define BGP_ROUTE_REDISTRIBUTE 3
251 #ifdef ENABLE_BGP_VNC
252 # define BGP_ROUTE_RFP 4
254 #define BGP_ROUTE_IMPORTED 5 /* from another bgp instance/safi */
256 unsigned short instance
;
258 /* Addpath identifiers */
259 uint32_t addpath_rx_id
;
260 struct bgp_addpath_info_data tx_addpath
;
263 /* Structure used in BGP path selection */
264 struct bgp_path_info_pair
{
265 struct bgp_path_info
*old
;
266 struct bgp_path_info
*new;
269 /* BGP static route configuration. */
271 /* Backdoor configuration. */
274 /* Label index configuration; applies to LU prefixes. */
275 uint32_t label_index
;
276 #define BGP_INVALID_LABEL_INDEX 0xFFFFFFFF
278 /* Import check status. */
285 struct in_addr igpnexthop
;
287 /* Atomic set reference count (ie cause of pathlimit) */
290 /* BGP redistribute route-map. */
293 struct route_map
*map
;
296 /* Route Distinguisher */
297 struct prefix_rd prd
;
303 struct eth_segment_id
*eth_s_id
;
304 struct ethaddr
*router_mac
;
305 uint16_t encap_tunneltype
;
306 struct prefix gatewayIp
;
309 /* Aggreagete address:
311 * advertise-map Set condition to advertise attribute
312 * as-set Generate AS set path information
313 * attribute-map Set attributes of aggregate
314 * route-map Set parameters of aggregate
315 * summary-only Filter more specific routes from updates
316 * suppress-map Conditionally filter more specific routes from updates
319 struct bgp_aggregate
{
320 /* Summary-only flag. */
321 uint8_t summary_only
;
323 /* AS set generation. */
326 /* Route-map for aggregated route. */
329 struct route_map
*map
;
332 /* Suppress-count. */
335 /* Count of routes of origin type incomplete under this aggregate. */
336 unsigned long incomplete_origin_count
;
338 /* Count of routes of origin type egp under this aggregate. */
339 unsigned long egp_origin_count
;
341 /* Hash containing the communities of all the
342 * routes under this aggregate.
344 struct hash
*community_hash
;
346 /* Hash containing the extended communities of all the
347 * routes under this aggregate.
349 struct hash
*ecommunity_hash
;
351 /* Hash containing the large communities of all the
352 * routes under this aggregate.
354 struct hash
*lcommunity_hash
;
356 /* Hash containing the AS-Path of all the
357 * routes under this aggregate.
359 struct hash
*aspath_hash
;
361 /* Aggregate route's community. */
362 struct community
*community
;
364 /* Aggregate route's extended community. */
365 struct ecommunity
*ecommunity
;
367 /* Aggregate route's large community. */
368 struct lcommunity
*lcommunity
;
370 /* Aggregate route's as-path. */
371 struct aspath
*aspath
;
373 /* SAFI configuration. */
377 #define BGP_NEXTHOP_AFI_FROM_NHLEN(nhlen) \
378 ((nhlen) < IPV4_MAX_BYTELEN \
380 : ((nhlen) < IPV6_MAX_BYTELEN ? AFI_IP : AFI_IP6))
382 #define BGP_ATTR_NEXTHOP_AFI_IP6(attr) \
383 (!CHECK_FLAG(attr->flag, ATTR_FLAG_BIT(BGP_ATTR_NEXT_HOP)) \
384 && ((attr)->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL \
385 || (attr)->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL \
386 || (attr)->mp_nexthop_len == BGP_ATTR_NHLEN_VPNV6_GLOBAL \
387 || (attr)->mp_nexthop_len == BGP_ATTR_NHLEN_VPNV6_GLOBAL_AND_LL))
388 #define BGP_PATH_COUNTABLE(BI) \
389 (!CHECK_FLAG((BI)->flags, BGP_PATH_HISTORY) \
390 && !CHECK_FLAG((BI)->flags, BGP_PATH_REMOVED))
392 /* Flags which indicate a route is unuseable in some form */
393 #define BGP_PATH_UNUSEABLE \
394 (BGP_PATH_HISTORY | BGP_PATH_DAMPED | BGP_PATH_REMOVED)
395 /* Macro to check BGP information is alive or not. Sadly,
396 * not equivalent to just checking previous, because of the
397 * sense of the additional VALID flag.
399 #define BGP_PATH_HOLDDOWN(BI) \
400 (!CHECK_FLAG((BI)->flags, BGP_PATH_VALID) \
401 || CHECK_FLAG((BI)->flags, BGP_PATH_UNUSEABLE))
403 #define DISTRIBUTE_IN_NAME(F) ((F)->dlist[FILTER_IN].name)
404 #define DISTRIBUTE_IN(F) ((F)->dlist[FILTER_IN].alist)
405 #define DISTRIBUTE_OUT_NAME(F) ((F)->dlist[FILTER_OUT].name)
406 #define DISTRIBUTE_OUT(F) ((F)->dlist[FILTER_OUT].alist)
408 #define PREFIX_LIST_IN_NAME(F) ((F)->plist[FILTER_IN].name)
409 #define PREFIX_LIST_IN(F) ((F)->plist[FILTER_IN].plist)
410 #define PREFIX_LIST_OUT_NAME(F) ((F)->plist[FILTER_OUT].name)
411 #define PREFIX_LIST_OUT(F) ((F)->plist[FILTER_OUT].plist)
413 #define FILTER_LIST_IN_NAME(F) ((F)->aslist[FILTER_IN].name)
414 #define FILTER_LIST_IN(F) ((F)->aslist[FILTER_IN].aslist)
415 #define FILTER_LIST_OUT_NAME(F) ((F)->aslist[FILTER_OUT].name)
416 #define FILTER_LIST_OUT(F) ((F)->aslist[FILTER_OUT].aslist)
418 #define ROUTE_MAP_IN_NAME(F) ((F)->map[RMAP_IN].name)
419 #define ROUTE_MAP_IN(F) ((F)->map[RMAP_IN].map)
420 #define ROUTE_MAP_OUT_NAME(F) ((F)->map[RMAP_OUT].name)
421 #define ROUTE_MAP_OUT(F) ((F)->map[RMAP_OUT].map)
423 #define UNSUPPRESS_MAP_NAME(F) ((F)->usmap.name)
424 #define UNSUPPRESS_MAP(F) ((F)->usmap.map)
426 /* path PREFIX (addpath rxid NUMBER) */
427 #define PATH_ADDPATH_STR_BUFFER PREFIX2STR_BUFFER + 32
431 BGP_PATH_SHOW_BESTPATH
,
432 BGP_PATH_SHOW_MULTIPATH
435 static inline void bgp_bump_version(struct bgp_node
*node
)
437 node
->version
= bgp_table_next_version(bgp_node_table(node
));
440 static inline int bgp_fibupd_safi(safi_t safi
)
442 if (safi
== SAFI_UNICAST
|| safi
== SAFI_MULTICAST
443 || safi
== SAFI_LABELED_UNICAST
444 || safi
== SAFI_FLOWSPEC
)
449 /* Flag if the route path's family matches params. */
450 static inline bool is_pi_family_matching(struct bgp_path_info
*pi
,
451 afi_t afi
, safi_t safi
)
453 struct bgp_table
*table
;
459 table
= bgp_node_table(rn
);
467 /* called before bgp_process() */
468 DECLARE_HOOK(bgp_process
,
469 (struct bgp
*bgp
, afi_t afi
, safi_t safi
,
470 struct bgp_node
*bn
, struct peer
*peer
, bool withdraw
),
471 (bgp
, afi
, safi
, bn
, peer
, withdraw
))
474 extern void bgp_rib_remove(struct bgp_node
*rn
, struct bgp_path_info
*pi
,
475 struct peer
*peer
, afi_t afi
, safi_t safi
);
476 extern void bgp_process_queue_init(void);
477 extern void bgp_route_init(void);
478 extern void bgp_route_finish(void);
479 extern void bgp_cleanup_routes(struct bgp
*);
480 extern void bgp_announce_route(struct peer
*, afi_t
, safi_t
);
481 extern void bgp_stop_announce_route_timer(struct peer_af
*paf
);
482 extern void bgp_announce_route_all(struct peer
*);
483 extern void bgp_default_originate(struct peer
*, afi_t
, safi_t
, int);
484 extern void bgp_soft_reconfig_in(struct peer
*, afi_t
, safi_t
);
485 extern void bgp_clear_route(struct peer
*, afi_t
, safi_t
);
486 extern void bgp_clear_route_all(struct peer
*);
487 extern void bgp_clear_adj_in(struct peer
*, afi_t
, safi_t
);
488 extern void bgp_clear_stale_route(struct peer
*, afi_t
, safi_t
);
489 extern int bgp_outbound_policy_exists(struct peer
*, struct bgp_filter
*);
490 extern int bgp_inbound_policy_exists(struct peer
*, struct bgp_filter
*);
492 extern struct bgp_node
*bgp_afi_node_get(struct bgp_table
*table
, afi_t afi
,
493 safi_t safi
, struct prefix
*p
,
494 struct prefix_rd
*prd
);
495 extern struct bgp_path_info
*bgp_path_info_lock(struct bgp_path_info
*path
);
496 extern struct bgp_path_info
*bgp_path_info_unlock(struct bgp_path_info
*path
);
497 extern void bgp_path_info_add(struct bgp_node
*rn
, struct bgp_path_info
*pi
);
498 extern void bgp_path_info_extra_free(struct bgp_path_info_extra
**extra
);
499 extern void bgp_path_info_reap(struct bgp_node
*rn
, struct bgp_path_info
*pi
);
500 extern void bgp_path_info_delete(struct bgp_node
*rn
, struct bgp_path_info
*pi
);
501 extern struct bgp_path_info_extra
*
502 bgp_path_info_extra_get(struct bgp_path_info
*path
);
503 extern void bgp_path_info_set_flag(struct bgp_node
*rn
,
504 struct bgp_path_info
*path
, uint32_t flag
);
505 extern void bgp_path_info_unset_flag(struct bgp_node
*rn
,
506 struct bgp_path_info
*path
, uint32_t flag
);
507 extern void bgp_path_info_path_with_addpath_rx_str(struct bgp_path_info
*pi
,
510 extern int bgp_nlri_parse_ip(struct peer
*, struct attr
*, struct bgp_nlri
*);
512 extern int bgp_maximum_prefix_overflow(struct peer
*, afi_t
, safi_t
, int);
514 extern void bgp_redistribute_add(struct bgp
*bgp
, struct prefix
*p
,
515 const union g_addr
*nexthop
, ifindex_t ifindex
,
516 enum nexthop_types_t nhtype
, uint32_t metric
,
517 uint8_t type
, unsigned short instance
,
519 extern void bgp_redistribute_delete(struct bgp
*, struct prefix
*, uint8_t,
521 extern void bgp_redistribute_withdraw(struct bgp
*, afi_t
, int, unsigned short);
523 extern void bgp_static_add(struct bgp
*);
524 extern void bgp_static_delete(struct bgp
*);
525 extern void bgp_static_redo_import_check(struct bgp
*);
526 extern void bgp_purge_static_redist_routes(struct bgp
*bgp
);
527 extern void bgp_static_update(struct bgp
*, struct prefix
*,
528 struct bgp_static
*, afi_t
, safi_t
);
529 extern void bgp_static_withdraw(struct bgp
*, struct prefix
*, afi_t
, safi_t
);
531 extern int bgp_static_set_safi(afi_t afi
, safi_t safi
, struct vty
*vty
,
532 const char *, const char *, const char *,
533 const char *, int, const char *, const char *,
534 const char *, const char *);
536 extern int bgp_static_unset_safi(afi_t afi
, safi_t safi
, struct vty
*,
537 const char *, const char *, const char *, int,
538 const char *, const char *, const char *);
540 /* this is primarily for MPLS-VPN */
541 extern int bgp_update(struct peer
*, struct prefix
*, uint32_t, struct attr
*,
542 afi_t
, safi_t
, int, int, struct prefix_rd
*,
543 mpls_label_t
*, uint32_t, int, struct bgp_route_evpn
*);
544 extern int bgp_withdraw(struct peer
*, struct prefix
*, uint32_t, struct attr
*,
545 afi_t
, safi_t
, int, int, struct prefix_rd
*,
546 mpls_label_t
*, uint32_t, struct bgp_route_evpn
*);
548 /* for bgp_nexthop and bgp_damp */
549 extern void bgp_process(struct bgp
*, struct bgp_node
*, afi_t
, safi_t
);
552 * Add an end-of-initial-update marker to the process queue. This is just a
553 * queue element with NULL bgp node.
555 extern void bgp_add_eoiu_mark(struct bgp
*);
556 extern void bgp_config_write_table_map(struct vty
*, struct bgp
*, afi_t
,
558 extern void bgp_config_write_network(struct vty
*, struct bgp
*, afi_t
, safi_t
);
559 extern void bgp_config_write_distance(struct vty
*, struct bgp
*, afi_t
,
562 extern void bgp_aggregate_delete(struct bgp
*bgp
, struct prefix
*p
, afi_t afi
,
563 safi_t safi
, struct bgp_aggregate
*aggregate
);
564 extern void bgp_aggregate_route(struct bgp
*bgp
, struct prefix
*p
, afi_t afi
,
565 safi_t safi
, struct bgp_aggregate
*aggregate
);
566 extern void bgp_aggregate_increment(struct bgp
*bgp
, struct prefix
*p
,
567 struct bgp_path_info
*path
, afi_t afi
,
569 extern void bgp_aggregate_decrement(struct bgp
*bgp
, struct prefix
*p
,
570 struct bgp_path_info
*path
, afi_t afi
,
573 extern uint8_t bgp_distance_apply(struct prefix
*p
, struct bgp_path_info
*path
,
574 afi_t afi
, safi_t safi
, struct bgp
*bgp
);
576 extern afi_t
bgp_node_afi(struct vty
*);
577 extern safi_t
bgp_node_safi(struct vty
*);
579 extern struct bgp_path_info
*info_make(int type
, int sub_type
,
580 unsigned short instance
,
581 struct peer
*peer
, struct attr
*attr
,
582 struct bgp_node
*rn
);
584 extern void route_vty_out(struct vty
*vty
, struct prefix
*p
,
585 struct bgp_path_info
*path
, int display
, safi_t safi
,
586 json_object
*json_paths
);
587 extern void route_vty_out_tag(struct vty
*vty
, struct prefix
*p
,
588 struct bgp_path_info
*path
, int display
,
589 safi_t safi
, json_object
*json
);
590 extern void route_vty_out_tmp(struct vty
*vty
, struct prefix
*p
,
591 struct attr
*attr
, safi_t safi
, bool use_json
,
592 json_object
*json_ar
);
593 extern void route_vty_out_overlay(struct vty
*vty
, struct prefix
*p
,
594 struct bgp_path_info
*path
, int display
,
597 extern int subgroup_process_announce_selected(struct update_subgroup
*subgrp
,
598 struct bgp_path_info
*selected
,
600 uint32_t addpath_tx_id
);
602 extern int subgroup_announce_check(struct bgp_node
*rn
,
603 struct bgp_path_info
*pi
,
604 struct update_subgroup
*subgrp
,
605 struct prefix
*p
, struct attr
*attr
);
607 extern void bgp_peer_clear_node_queue_drain_immediate(struct peer
*peer
);
608 extern void bgp_process_queues_drain_immediate(void);
611 extern struct bgp_node
*bgp_afi_node_lookup(struct bgp_table
*table
, afi_t afi
,
612 safi_t safi
, struct prefix
*p
,
613 struct prefix_rd
*prd
);
614 extern void bgp_path_info_restore(struct bgp_node
*rn
,
615 struct bgp_path_info
*path
);
617 extern int bgp_path_info_cmp_compatible(struct bgp
*bgp
,
618 struct bgp_path_info
*new,
619 struct bgp_path_info
*exist
,
620 char *pfx_buf
, afi_t afi
, safi_t safi
,
621 enum bgp_path_selection_reason
*reason
);
622 extern void bgp_attr_add_gshut_community(struct attr
*attr
);
624 extern void bgp_best_selection(struct bgp
*bgp
, struct bgp_node
*rn
,
625 struct bgp_maxpaths_cfg
*mpath_cfg
,
626 struct bgp_path_info_pair
*result
, afi_t afi
,
628 extern void bgp_zebra_clear_route_change_flags(struct bgp_node
*rn
);
629 extern int bgp_zebra_has_route_changed(struct bgp_node
*rn
,
630 struct bgp_path_info
*selected
);
632 extern void route_vty_out_detail_header(struct vty
*vty
, struct bgp
*bgp
,
634 struct prefix_rd
*prd
, afi_t afi
,
635 safi_t safi
, json_object
*json
);
636 extern void route_vty_out_detail(struct vty
*vty
, struct bgp
*bgp
,
638 struct bgp_path_info
*path
,
639 afi_t afi
, safi_t safi
,
640 json_object
*json_paths
);
641 extern int bgp_show_table_rd(struct vty
*vty
, struct bgp
*bgp
, safi_t safi
,
642 struct bgp_table
*table
, struct prefix_rd
*prd
,
643 enum bgp_show_type type
, void *output_arg
,
645 extern int bgp_best_path_select_defer(struct bgp
*bgp
, afi_t afi
, safi_t safi
);
646 #endif /* _QUAGGA_BGP_ROUTE_H */