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"
33 struct bgp_nexthop_cache
;
34 struct bgp_route_evpn
;
39 bgp_show_type_prefix_list
,
40 bgp_show_type_filter_list
,
41 bgp_show_type_route_map
,
42 bgp_show_type_neighbor
,
43 bgp_show_type_cidr_only
,
44 bgp_show_type_prefix_longer
,
45 bgp_show_type_community_alias
,
46 bgp_show_type_community_all
,
47 bgp_show_type_community
,
48 bgp_show_type_community_exact
,
49 bgp_show_type_community_list
,
50 bgp_show_type_community_list_exact
,
51 bgp_show_type_lcommunity_all
,
52 bgp_show_type_lcommunity
,
53 bgp_show_type_lcommunity_exact
,
54 bgp_show_type_lcommunity_list
,
55 bgp_show_type_lcommunity_list_exact
,
56 bgp_show_type_flap_statistics
,
57 bgp_show_type_flap_neighbor
,
58 bgp_show_type_dampend_paths
,
59 bgp_show_type_damp_neighbor
,
62 bgp_show_type_prefix_version
,
65 enum bgp_show_adj_route_type
{
66 bgp_show_adj_route_advertised
,
67 bgp_show_adj_route_received
,
68 bgp_show_adj_route_filtered
,
69 bgp_show_adj_route_bestpath
,
73 #define BGP_SHOW_SCODE_HEADER \
74 "Status codes: s suppressed, d damped, " \
75 "h history, * valid, > best, = multipath,\n" \
76 " i internal, r RIB-failure, S Stale, R Removed\n"
77 #define BGP_SHOW_OCODE_HEADER \
78 "Origin codes: i - IGP, e - EGP, ? - incomplete\n"
79 #define BGP_SHOW_NCODE_HEADER "Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self\n"
80 #define BGP_SHOW_RPKI_HEADER \
81 "RPKI validation codes: V valid, I invalid, N Not found\n\n"
82 #define BGP_SHOW_HEADER " Network Next Hop Metric LocPrf Weight Path\n"
83 #define BGP_SHOW_HEADER_WIDE " Network Next Hop Metric LocPrf Weight Path\n"
85 /* Maximum number of labels we can process or send with a prefix. We
86 * really do only 1 for MPLS (BGP-LU) but we can do 2 for EVPN-VxLAN.
88 #define BGP_MAX_LABELS 2
90 /* Maximum number of sids we can process or send with a prefix. */
91 #define BGP_MAX_SIDS 6
93 /* Maximum buffer length for storing BGP best path selection reason */
94 #define BGP_MAX_SELECTION_REASON_STR_BUF 32
96 /* Error codes for handling NLRI */
97 #define BGP_NLRI_PARSE_OK 0
98 #define BGP_NLRI_PARSE_ERROR_PREFIX_OVERFLOW -1
99 #define BGP_NLRI_PARSE_ERROR_PACKET_OVERFLOW -2
100 #define BGP_NLRI_PARSE_ERROR_PREFIX_LENGTH -3
101 #define BGP_NLRI_PARSE_ERROR_PACKET_LENGTH -4
102 #define BGP_NLRI_PARSE_ERROR_LABEL_LENGTH -5
103 #define BGP_NLRI_PARSE_ERROR_EVPN_MISSING_TYPE -6
104 #define BGP_NLRI_PARSE_ERROR_EVPN_TYPE2_SIZE -7
105 #define BGP_NLRI_PARSE_ERROR_EVPN_TYPE3_SIZE -8
106 #define BGP_NLRI_PARSE_ERROR_EVPN_TYPE4_SIZE -9
107 #define BGP_NLRI_PARSE_ERROR_EVPN_TYPE5_SIZE -10
108 #define BGP_NLRI_PARSE_ERROR_FLOWSPEC_IPV6_NOT_SUPPORTED -11
109 #define BGP_NLRI_PARSE_ERROR_FLOWSPEC_NLRI_SIZELIMIT -12
110 #define BGP_NLRI_PARSE_ERROR_FLOWSPEC_BAD_FORMAT -13
111 #define BGP_NLRI_PARSE_ERROR_ADDRESS_FAMILY -14
112 #define BGP_NLRI_PARSE_ERROR_EVPN_TYPE1_SIZE -15
113 #define BGP_NLRI_PARSE_ERROR -32
115 /* 1. local MAC-IP/type-2 paths in the VNI routing table are linked to the
117 * 2. remote MAC-IP paths in the global routing table are linked to the
120 struct bgp_path_es_info
{
121 /* back pointer to the route */
122 struct bgp_path_info
*pi
;
125 struct bgp_evpn_es
*es
;
126 /* memory used for linking the path to the destination ES */
127 struct listnode es_listnode
;
129 /* Path is linked to the VNI list */
130 #define BGP_EVPN_PATH_ES_INFO_VNI_LIST (1 << 0)
131 /* Path is linked to the global list */
132 #define BGP_EVPN_PATH_ES_INFO_GLOBAL_LIST (1 << 1)
135 /* IP paths imported into the VRF from an EVPN route source
136 * are linked to the nexthop/VTEP IP
138 struct bgp_path_evpn_nh_info
{
139 /* back pointer to the route */
140 struct bgp_path_info
*pi
;
141 struct bgp_evpn_nh
*nh
;
142 /* memory used for linking the path to the nexthop */
143 struct listnode nh_listnode
;
146 struct bgp_path_mh_info
{
147 struct bgp_path_es_info
*es_info
;
148 struct bgp_path_evpn_nh_info
*nh_info
;
151 struct bgp_sid_info
{
153 uint8_t loc_block_len
;
154 uint8_t loc_node_len
;
159 /* Ancillary information to struct bgp_path_info,
160 * used for uncommonly used data (aggregation, MPLS, etc.)
161 * and lazily allocated to save memory.
163 struct bgp_path_info_extra
{
164 /* Pointer to dampening structure. */
165 struct bgp_damp_info
*damp_info
;
167 /** List of aggregations that suppress this path. */
168 struct list
*aggr_suppressors
;
170 /* Nexthop reachability check. */
173 /* MPLS label(s) - VNI(s) for EVPN-VxLAN */
174 mpls_label_t label
[BGP_MAX_LABELS
];
177 /* af specific flags */
179 #define BGP_EVPN_MACIP_TYPE_SVI_IP (1 << 0)
181 /* SRv6 SID(s) for SRv6-VPN */
182 struct bgp_sid_info sid
[BGP_MAX_SIDS
];
185 #ifdef ENABLE_BGP_VNC
189 void *rfapi_handle
; /* export: NVE advertising this
191 struct list
*local_nexthops
; /* optional, for static
196 struct thread
*timer
;
197 void *hme
; /* encap monitor, if this is a VPN route */
199 rd
; /* import: route's route-distinguisher */
200 uint8_t un_family
; /* family of cached un address, 0 if
203 struct in_addr addr4
;
204 struct in6_addr addr6
;
205 } un
; /* cached un address */
207 struct prefix aux_prefix
; /* AFI_L2VPN: the IP addr,
214 /* For imported routes into a VNI (or VRF), this points to the parent.
219 * Some tunnelish parameters follow. Maybe consolidate into an
220 * internal tunnel structure?
224 * Original bgp instance for imported routes. Needed for:
225 * 1. Find all routes from a specific vrf for deletion
226 * 2. vrf context of original nexthop
228 * Store pointer to bgp instance rather than bgp->vrf_id because
229 * bgp->vrf_id is not always valid (or may change?).
231 * Set to NULL if route is not imported from another bgp instance.
233 struct bgp
*bgp_orig
;
236 * Nexthop in context of original bgp instance. Needed
237 * for label resolution of core mpls routes exported to a vrf.
238 * Set nexthop_orig.family to 0 if not valid.
240 struct prefix nexthop_orig
;
241 /* presence of FS pbr firewall based entry */
242 struct list
*bgp_fs_pbr
;
243 /* presence of FS pbr iprule based entry */
244 struct list
*bgp_fs_iprule
;
245 /* Destination Ethernet Segment links for EVPN MH */
246 struct bgp_path_mh_info
*mh_info
;
249 struct bgp_path_info
{
250 /* For linked list. */
251 struct bgp_path_info
*next
;
252 struct bgp_path_info
*prev
;
254 /* For nexthop linked list */
255 LIST_ENTRY(bgp_path_info
) nh_thread
;
257 /* Back pointer to the prefix node */
258 struct bgp_dest
*net
;
260 /* Back pointer to the nexthop structure */
261 struct bgp_nexthop_cache
*nexthop
;
263 /* Peer structure. */
266 /* Attribute structure. */
269 /* Extra information */
270 struct bgp_path_info_extra
*extra
;
273 /* Multipath information */
274 struct bgp_path_info_mpath
*mpath
;
279 /* reference count */
282 /* BGP information status. */
284 #define BGP_PATH_IGP_CHANGED (1 << 0)
285 #define BGP_PATH_DAMPED (1 << 1)
286 #define BGP_PATH_HISTORY (1 << 2)
287 #define BGP_PATH_SELECTED (1 << 3)
288 #define BGP_PATH_VALID (1 << 4)
289 #define BGP_PATH_ATTR_CHANGED (1 << 5)
290 #define BGP_PATH_DMED_CHECK (1 << 6)
291 #define BGP_PATH_DMED_SELECTED (1 << 7)
292 #define BGP_PATH_STALE (1 << 8)
293 #define BGP_PATH_REMOVED (1 << 9)
294 #define BGP_PATH_COUNTED (1 << 10)
295 #define BGP_PATH_MULTIPATH (1 << 11)
296 #define BGP_PATH_MULTIPATH_CHG (1 << 12)
297 #define BGP_PATH_RIB_ATTR_CHG (1 << 13)
298 #define BGP_PATH_ANNC_NH_SELF (1 << 14)
299 #define BGP_PATH_LINK_BW_CHG (1 << 15)
301 /* BGP route type. This can be static, RIP, OSPF, BGP etc. */
304 /* When above type is BGP. This sub type specify BGP sub type
307 #define BGP_ROUTE_NORMAL 0
308 #define BGP_ROUTE_STATIC 1
309 #define BGP_ROUTE_AGGREGATE 2
310 #define BGP_ROUTE_REDISTRIBUTE 3
311 #ifdef ENABLE_BGP_VNC
312 # define BGP_ROUTE_RFP 4
314 #define BGP_ROUTE_IMPORTED 5 /* from another bgp instance/safi */
316 unsigned short instance
;
318 /* Addpath identifiers */
319 uint32_t addpath_rx_id
;
320 struct bgp_addpath_info_data tx_addpath
;
323 /* Structure used in BGP path selection */
324 struct bgp_path_info_pair
{
325 struct bgp_path_info
*old
;
326 struct bgp_path_info
*new;
329 /* BGP static route configuration. */
331 /* Backdoor configuration. */
334 /* Label index configuration; applies to LU prefixes. */
335 uint32_t label_index
;
336 #define BGP_INVALID_LABEL_INDEX 0xFFFFFFFF
338 /* Import check status. */
345 struct in_addr igpnexthop
;
347 /* Atomic set reference count (ie cause of pathlimit) */
350 /* BGP redistribute route-map. */
353 struct route_map
*map
;
356 /* Route Distinguisher */
357 struct prefix_rd prd
;
364 struct ethaddr
*router_mac
;
365 uint16_t encap_tunneltype
;
366 struct prefix gatewayIp
;
369 /* Aggreagete address:
371 * advertise-map Set condition to advertise attribute
372 * as-set Generate AS set path information
373 * attribute-map Set attributes of aggregate
374 * route-map Set parameters of aggregate
375 * summary-only Filter more specific routes from updates
376 * suppress-map Conditionally filter more specific routes from updates
379 struct bgp_aggregate
{
380 /* Summary-only flag. */
381 uint8_t summary_only
;
383 /* AS set generation. */
386 /* Route-map for aggregated route. */
389 struct route_map
*map
;
392 /* Suppress-count. */
395 /* Count of routes of origin type incomplete under this aggregate. */
396 unsigned long incomplete_origin_count
;
398 /* Count of routes of origin type egp under this aggregate. */
399 unsigned long egp_origin_count
;
401 /* Optional modify flag to override ORIGIN */
404 /* Hash containing the communities of all the
405 * routes under this aggregate.
407 struct hash
*community_hash
;
409 /* Hash containing the extended communities of all the
410 * routes under this aggregate.
412 struct hash
*ecommunity_hash
;
414 /* Hash containing the large communities of all the
415 * routes under this aggregate.
417 struct hash
*lcommunity_hash
;
419 /* Hash containing the AS-Path of all the
420 * routes under this aggregate.
422 struct hash
*aspath_hash
;
424 /* Aggregate route's community. */
425 struct community
*community
;
427 /* Aggregate route's extended community. */
428 struct ecommunity
*ecommunity
;
430 /* Aggregate route's large community. */
431 struct lcommunity
*lcommunity
;
433 /* Aggregate route's as-path. */
434 struct aspath
*aspath
;
436 /* SAFI configuration. */
439 /** Match only equal MED. */
441 /* MED matching state. */
442 /** Did we get the first MED value? */
443 bool med_initialized
;
444 /** Are there MED mismatches? */
446 /** MED value found in current group. */
447 uint32_t med_matched_value
;
450 * Test if aggregated address MED of all route match, otherwise
451 * returns `false`. This macro will also return `true` if MED
452 * matching is disabled.
454 #define AGGREGATE_MED_VALID(aggregate) \
455 (((aggregate)->match_med && !(aggregate)->med_mismatched) \
456 || !(aggregate)->match_med)
458 /** Suppress map route map name (`NULL` when disabled). */
459 char *suppress_map_name
;
460 /** Suppress map route map pointer. */
461 struct route_map
*suppress_map
;
464 #define BGP_NEXTHOP_AFI_FROM_NHLEN(nhlen) \
465 ((nhlen) < IPV4_MAX_BYTELEN \
467 : ((nhlen) < IPV6_MAX_BYTELEN ? AFI_IP : AFI_IP6))
469 #define BGP_ATTR_NEXTHOP_AFI_IP6(attr) \
470 (!CHECK_FLAG(attr->flag, ATTR_FLAG_BIT(BGP_ATTR_NEXT_HOP)) \
471 && ((attr)->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL \
472 || (attr)->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL \
473 || (attr)->mp_nexthop_len == BGP_ATTR_NHLEN_VPNV6_GLOBAL \
474 || (attr)->mp_nexthop_len == BGP_ATTR_NHLEN_VPNV6_GLOBAL_AND_LL))
475 #define BGP_PATH_COUNTABLE(BI) \
476 (!CHECK_FLAG((BI)->flags, BGP_PATH_HISTORY) \
477 && !CHECK_FLAG((BI)->flags, BGP_PATH_REMOVED))
479 /* Flags which indicate a route is unuseable in some form */
480 #define BGP_PATH_UNUSEABLE \
481 (BGP_PATH_HISTORY | BGP_PATH_DAMPED | BGP_PATH_REMOVED)
482 /* Macro to check BGP information is alive or not. Sadly,
483 * not equivalent to just checking previous, because of the
484 * sense of the additional VALID flag.
486 #define BGP_PATH_HOLDDOWN(BI) \
487 (!CHECK_FLAG((BI)->flags, BGP_PATH_VALID) \
488 || CHECK_FLAG((BI)->flags, BGP_PATH_UNUSEABLE))
490 #define DISTRIBUTE_IN_NAME(F) ((F)->dlist[FILTER_IN].name)
491 #define DISTRIBUTE_IN(F) ((F)->dlist[FILTER_IN].alist)
492 #define DISTRIBUTE_OUT_NAME(F) ((F)->dlist[FILTER_OUT].name)
493 #define DISTRIBUTE_OUT(F) ((F)->dlist[FILTER_OUT].alist)
495 #define PREFIX_LIST_IN_NAME(F) ((F)->plist[FILTER_IN].name)
496 #define PREFIX_LIST_IN(F) ((F)->plist[FILTER_IN].plist)
497 #define PREFIX_LIST_OUT_NAME(F) ((F)->plist[FILTER_OUT].name)
498 #define PREFIX_LIST_OUT(F) ((F)->plist[FILTER_OUT].plist)
500 #define FILTER_LIST_IN_NAME(F) ((F)->aslist[FILTER_IN].name)
501 #define FILTER_LIST_IN(F) ((F)->aslist[FILTER_IN].aslist)
502 #define FILTER_LIST_OUT_NAME(F) ((F)->aslist[FILTER_OUT].name)
503 #define FILTER_LIST_OUT(F) ((F)->aslist[FILTER_OUT].aslist)
505 #define ROUTE_MAP_IN_NAME(F) ((F)->map[RMAP_IN].name)
506 #define ROUTE_MAP_IN(F) ((F)->map[RMAP_IN].map)
507 #define ROUTE_MAP_OUT_NAME(F) ((F)->map[RMAP_OUT].name)
508 #define ROUTE_MAP_OUT(F) ((F)->map[RMAP_OUT].map)
510 #define UNSUPPRESS_MAP_NAME(F) ((F)->usmap.name)
511 #define UNSUPPRESS_MAP(F) ((F)->usmap.map)
513 #define ADVERTISE_MAP_NAME(F) ((F)->advmap.aname)
514 #define ADVERTISE_MAP(F) ((F)->advmap.amap)
516 #define ADVERTISE_CONDITION(F) ((F)->advmap.condition)
518 #define CONDITION_MAP_NAME(F) ((F)->advmap.cname)
519 #define CONDITION_MAP(F) ((F)->advmap.cmap)
521 /* path PREFIX (addpath rxid NUMBER) */
522 #define PATH_ADDPATH_STR_BUFFER PREFIX2STR_BUFFER + 32
526 BGP_PATH_SHOW_BESTPATH
,
527 BGP_PATH_SHOW_MULTIPATH
530 static inline void bgp_bump_version(struct bgp_dest
*dest
)
532 dest
->version
= bgp_table_next_version(bgp_dest_table(dest
));
535 static inline int bgp_fibupd_safi(safi_t safi
)
537 if (safi
== SAFI_UNICAST
|| safi
== SAFI_MULTICAST
538 || safi
== SAFI_LABELED_UNICAST
539 || safi
== SAFI_FLOWSPEC
)
544 /* Flag if the route path's family matches params. */
545 static inline bool is_pi_family_matching(struct bgp_path_info
*pi
,
546 afi_t afi
, safi_t safi
)
548 struct bgp_table
*table
;
549 struct bgp_dest
*dest
;
554 table
= bgp_dest_table(dest
);
562 static inline void prep_for_rmap_apply(struct bgp_path_info
*dst_pi
,
563 struct bgp_path_info_extra
*dst_pie
,
564 struct bgp_dest
*dest
,
565 struct bgp_path_info
*src_pi
,
566 struct peer
*peer
, struct attr
*attr
)
568 memset(dst_pi
, 0, sizeof(struct bgp_path_info
));
572 dst_pi
->flags
= src_pi
->flags
;
573 dst_pi
->type
= src_pi
->type
;
574 dst_pi
->sub_type
= src_pi
->sub_type
;
575 dst_pi
->mpath
= src_pi
->mpath
;
577 memcpy(dst_pie
, src_pi
->extra
,
578 sizeof(struct bgp_path_info_extra
));
579 dst_pi
->extra
= dst_pie
;
583 static inline bool bgp_check_advertise(struct bgp
*bgp
, struct bgp_dest
*dest
)
585 return (!(BGP_SUPPRESS_FIB_ENABLED(bgp
) &&
586 CHECK_FLAG(dest
->flags
, BGP_NODE_FIB_INSTALL_PENDING
) &&
587 (!bgp_option_check(BGP_OPT_NO_FIB
))));
590 /* called before bgp_process() */
591 DECLARE_HOOK(bgp_process
,
592 (struct bgp
* bgp
, afi_t afi
, safi_t safi
, struct bgp_dest
*bn
,
593 struct peer
*peer
, bool withdraw
),
594 (bgp
, afi
, safi
, bn
, peer
, withdraw
));
596 /* BGP show options */
597 #define BGP_SHOW_OPT_JSON (1 << 0)
598 #define BGP_SHOW_OPT_WIDE (1 << 1)
599 #define BGP_SHOW_OPT_AFI_ALL (1 << 2)
600 #define BGP_SHOW_OPT_AFI_IP (1 << 3)
601 #define BGP_SHOW_OPT_AFI_IP6 (1 << 4)
602 #define BGP_SHOW_OPT_ESTABLISHED (1 << 5)
603 #define BGP_SHOW_OPT_FAILED (1 << 6)
604 #define BGP_SHOW_OPT_DETAIL (1 << 7)
605 #define BGP_SHOW_OPT_TERSE (1 << 8)
608 extern void bgp_rib_remove(struct bgp_dest
*dest
, struct bgp_path_info
*pi
,
609 struct peer
*peer
, afi_t afi
, safi_t safi
);
610 extern void bgp_process_queue_init(struct bgp
*bgp
);
611 extern void bgp_route_init(void);
612 extern void bgp_route_finish(void);
613 extern void bgp_cleanup_routes(struct bgp
*);
614 extern void bgp_announce_route(struct peer
*peer
, afi_t afi
, safi_t safi
,
616 extern void bgp_stop_announce_route_timer(struct peer_af
*paf
);
617 extern void bgp_announce_route_all(struct peer
*);
618 extern void bgp_default_originate(struct peer
*, afi_t
, safi_t
, int);
619 extern void bgp_soft_reconfig_table_task_cancel(const struct bgp
*bgp
,
620 const struct bgp_table
*table
,
621 const struct peer
*peer
);
622 extern void bgp_soft_reconfig_in(struct peer
*, afi_t
, safi_t
);
623 extern void bgp_clear_route(struct peer
*, afi_t
, safi_t
);
624 extern void bgp_clear_route_all(struct peer
*);
625 extern void bgp_clear_adj_in(struct peer
*, afi_t
, safi_t
);
626 extern void bgp_clear_stale_route(struct peer
*, afi_t
, safi_t
);
627 extern void bgp_set_stale_route(struct peer
*peer
, afi_t afi
, safi_t safi
);
628 extern bool bgp_outbound_policy_exists(struct peer
*, struct bgp_filter
*);
629 extern bool bgp_inbound_policy_exists(struct peer
*, struct bgp_filter
*);
631 extern struct bgp_dest
*bgp_afi_node_get(struct bgp_table
*table
, afi_t afi
,
632 safi_t safi
, const struct prefix
*p
,
633 struct prefix_rd
*prd
);
634 extern struct bgp_path_info
*bgp_path_info_lock(struct bgp_path_info
*path
);
635 extern struct bgp_path_info
*bgp_path_info_unlock(struct bgp_path_info
*path
);
636 extern void bgp_path_info_add(struct bgp_dest
*dest
, struct bgp_path_info
*pi
);
637 extern void bgp_path_info_extra_free(struct bgp_path_info_extra
**extra
);
638 extern void bgp_path_info_reap(struct bgp_dest
*dest
, struct bgp_path_info
*pi
);
639 extern void bgp_path_info_delete(struct bgp_dest
*dest
,
640 struct bgp_path_info
*pi
);
641 extern struct bgp_path_info_extra
*
642 bgp_path_info_extra_get(struct bgp_path_info
*path
);
643 extern void bgp_path_info_set_flag(struct bgp_dest
*dest
,
644 struct bgp_path_info
*path
, uint32_t flag
);
645 extern void bgp_path_info_unset_flag(struct bgp_dest
*dest
,
646 struct bgp_path_info
*path
, uint32_t flag
);
647 extern void bgp_path_info_path_with_addpath_rx_str(struct bgp_path_info
*pi
,
648 char *buf
, size_t buf_len
);
650 extern int bgp_nlri_parse_ip(struct peer
*, struct attr
*, struct bgp_nlri
*);
652 extern bool bgp_maximum_prefix_overflow(struct peer
*, afi_t
, safi_t
, int);
654 extern void bgp_redistribute_add(struct bgp
*bgp
, struct prefix
*p
,
655 const union g_addr
*nexthop
, ifindex_t ifindex
,
656 enum nexthop_types_t nhtype
, uint8_t distance
,
657 enum blackhole_type bhtype
, uint32_t metric
,
658 uint8_t type
, unsigned short instance
,
660 extern void bgp_redistribute_delete(struct bgp
*, struct prefix
*, uint8_t,
662 extern void bgp_redistribute_withdraw(struct bgp
*, afi_t
, int, unsigned short);
664 extern void bgp_static_add(struct bgp
*);
665 extern void bgp_static_delete(struct bgp
*);
666 extern void bgp_static_redo_import_check(struct bgp
*);
667 extern void bgp_purge_static_redist_routes(struct bgp
*bgp
);
668 extern void bgp_static_update(struct bgp
*bgp
, const struct prefix
*p
,
669 struct bgp_static
*s
, afi_t afi
, safi_t safi
);
670 extern void bgp_static_withdraw(struct bgp
*bgp
, const struct prefix
*p
,
671 afi_t afi
, safi_t safi
);
673 extern int bgp_static_set_safi(afi_t afi
, safi_t safi
, struct vty
*vty
,
674 const char *, const char *, const char *,
675 const char *, int, const char *, const char *,
676 const char *, const char *);
678 extern int bgp_static_unset_safi(afi_t afi
, safi_t safi
, struct vty
*,
679 const char *, const char *, const char *, int,
680 const char *, const char *, const char *);
682 /* this is primarily for MPLS-VPN */
683 extern int bgp_update(struct peer
*peer
, const struct prefix
*p
,
684 uint32_t addpath_id
, struct attr
*attr
,
685 afi_t afi
, safi_t safi
, int type
, int sub_type
,
686 struct prefix_rd
*prd
, mpls_label_t
*label
,
687 uint32_t num_labels
, int soft_reconfig
,
688 struct bgp_route_evpn
*evpn
);
689 extern int bgp_withdraw(struct peer
*peer
, const struct prefix
*p
,
690 uint32_t addpath_id
, struct attr
*attr
, afi_t afi
,
691 safi_t safi
, int type
, int sub_type
,
692 struct prefix_rd
*prd
, mpls_label_t
*label
,
693 uint32_t num_labels
, struct bgp_route_evpn
*evpn
);
695 /* for bgp_nexthop and bgp_damp */
696 extern void bgp_process(struct bgp
*, struct bgp_dest
*, afi_t
, safi_t
);
699 * Add an end-of-initial-update marker to the process queue. This is just a
700 * queue element with NULL bgp node.
702 extern void bgp_add_eoiu_mark(struct bgp
*);
703 extern void bgp_config_write_table_map(struct vty
*, struct bgp
*, afi_t
,
705 extern void bgp_config_write_network(struct vty
*, struct bgp
*, afi_t
, safi_t
);
706 extern void bgp_config_write_distance(struct vty
*, struct bgp
*, afi_t
,
709 extern void bgp_aggregate_delete(struct bgp
*bgp
, const struct prefix
*p
,
710 afi_t afi
, safi_t safi
,
711 struct bgp_aggregate
*aggregate
);
712 extern void bgp_aggregate_route(struct bgp
*bgp
, const struct prefix
*p
,
713 afi_t afi
, safi_t safi
,
714 struct bgp_aggregate
*aggregate
);
715 extern void bgp_aggregate_increment(struct bgp
*bgp
, const struct prefix
*p
,
716 struct bgp_path_info
*path
, afi_t afi
,
718 extern void bgp_aggregate_decrement(struct bgp
*bgp
, const struct prefix
*p
,
719 struct bgp_path_info
*path
, afi_t afi
,
722 extern uint8_t bgp_distance_apply(const struct prefix
*p
,
723 struct bgp_path_info
*path
, afi_t afi
,
724 safi_t safi
, struct bgp
*bgp
);
726 extern afi_t
bgp_node_afi(struct vty
*);
727 extern safi_t
bgp_node_safi(struct vty
*);
729 extern struct bgp_path_info
*info_make(int type
, int sub_type
,
730 unsigned short instance
,
731 struct peer
*peer
, struct attr
*attr
,
732 struct bgp_dest
*dest
);
734 extern void route_vty_out(struct vty
*vty
, const struct prefix
*p
,
735 struct bgp_path_info
*path
, int display
, safi_t safi
,
736 json_object
*json_paths
, bool wide
);
737 extern void route_vty_out_tag(struct vty
*vty
, const struct prefix
*p
,
738 struct bgp_path_info
*path
, int display
,
739 safi_t safi
, json_object
*json
);
740 extern void route_vty_out_tmp(struct vty
*vty
, struct bgp_dest
*dest
,
741 const struct prefix
*p
, struct attr
*attr
,
742 safi_t safi
, bool use_json
, json_object
*json_ar
,
744 extern void route_vty_out_overlay(struct vty
*vty
, const struct prefix
*p
,
745 struct bgp_path_info
*path
, int display
,
748 extern void bgp_notify_conditional_adv_scanner(struct update_subgroup
*subgrp
);
750 extern void subgroup_process_announce_selected(struct update_subgroup
*subgrp
,
751 struct bgp_path_info
*selected
,
752 struct bgp_dest
*dest
,
753 uint32_t addpath_tx_id
);
755 extern bool subgroup_announce_check(struct bgp_dest
*dest
,
756 struct bgp_path_info
*pi
,
757 struct update_subgroup
*subgrp
,
758 const struct prefix
*p
, struct attr
*attr
,
759 bool skip_rmap_check
);
761 extern void bgp_peer_clear_node_queue_drain_immediate(struct peer
*peer
);
762 extern void bgp_process_queues_drain_immediate(void);
765 extern struct bgp_dest
*bgp_afi_node_lookup(struct bgp_table
*table
, afi_t afi
,
766 safi_t safi
, const struct prefix
*p
,
767 struct prefix_rd
*prd
);
768 extern void bgp_path_info_restore(struct bgp_dest
*dest
,
769 struct bgp_path_info
*path
);
771 extern int bgp_path_info_cmp_compatible(struct bgp
*bgp
,
772 struct bgp_path_info
*new,
773 struct bgp_path_info
*exist
,
774 char *pfx_buf
, afi_t afi
, safi_t safi
,
775 enum bgp_path_selection_reason
*reason
);
776 extern void bgp_attr_add_gshut_community(struct attr
*attr
);
778 extern void bgp_best_selection(struct bgp
*bgp
, struct bgp_dest
*dest
,
779 struct bgp_maxpaths_cfg
*mpath_cfg
,
780 struct bgp_path_info_pair
*result
, afi_t afi
,
782 extern void bgp_zebra_clear_route_change_flags(struct bgp_dest
*dest
);
783 extern bool bgp_zebra_has_route_changed(struct bgp_path_info
*selected
);
785 extern void route_vty_out_detail_header(struct vty
*vty
, struct bgp
*bgp
,
786 struct bgp_dest
*dest
,
787 struct prefix_rd
*prd
, afi_t afi
,
788 safi_t safi
, json_object
*json
);
789 extern void route_vty_out_detail(struct vty
*vty
, struct bgp
*bgp
,
791 struct bgp_path_info
*path
, afi_t afi
,
792 safi_t safi
, enum rpki_states
,
793 json_object
*json_paths
);
794 extern int bgp_show_table_rd(struct vty
*vty
, struct bgp
*bgp
, safi_t safi
,
795 struct bgp_table
*table
, struct prefix_rd
*prd
,
796 enum bgp_show_type type
, void *output_arg
,
798 extern int bgp_best_path_select_defer(struct bgp
*bgp
, afi_t afi
, safi_t safi
);
799 extern bool bgp_update_martian_nexthop(struct bgp
*bgp
, afi_t afi
, safi_t safi
,
800 uint8_t type
, uint8_t stype
,
801 struct attr
*attr
, struct bgp_dest
*dest
);
802 extern int bgp_evpn_path_info_cmp(struct bgp
*bgp
, struct bgp_path_info
*new,
803 struct bgp_path_info
*exist
, int *paths_eq
);
804 extern void bgp_aggregate_toggle_suppressed(struct bgp_aggregate
*aggregate
,
806 const struct prefix
*p
, afi_t afi
,
807 safi_t safi
, bool suppress
);
808 extern void subgroup_announce_reset_nhop(uint8_t family
, struct attr
*attr
);
810 bgp_path_selection_reason2str(enum bgp_path_selection_reason reason
);
811 #endif /* _QUAGGA_BGP_ROUTE_H */