1 /* BGP message definition header.
2 Copyright (C) 1996, 97, 98, 99, 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
17 along with GNU Zebra; see the file COPYING. If not, write to the Free
18 Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
21 #ifndef _QUAGGA_BGPD_H
22 #define _QUAGGA_BGPD_H
27 /* For union sockunion. */
29 #include "sockunion.h"
33 #define BGP_MAX_HOSTNAME 64 /* Linux max, is larger than most other sys */
35 struct update_subgroup
;
39 * Allow the neighbor XXXX remote-as to take internal or external
40 * AS_SPECIFIED is zero to auto-inherit original non-feature/enhancement behavior
50 /* Typedef BGP specific types. */
51 typedef u_int32_t as_t
;
52 typedef u_int16_t as16_t
; /* we may still encounter 16 Bit asnums */
53 typedef u_int16_t bgp_size_t
;
56 ({ __typeof__ (a) _a = (a); \
57 __typeof__ (b) _b = (b); \
63 BGP_AF_IPV4_UNICAST
= BGP_AF_START
,
64 BGP_AF_IPV4_MULTICAST
,
67 BGP_AF_IPV6_MULTICAST
,
71 #define AF_FOREACH(af) \
72 for ((af) = BGP_AF_START; (af) < BGP_AF_MAX; (af)++)
74 #define FOREACH_AFI_SAFI(afi, safi) \
75 for (afi = AFI_IP; afi < AFI_MAX; afi++) \
76 for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++)
78 /* BGP master for system wide configurations and variables. */
81 /* BGP instance list. */
84 /* BGP thread master. */
85 struct thread_master
*master
;
88 struct work_queue
*process_main_queue
;
90 /* Listening sockets */
91 struct list
*listen_sockets
;
93 /* BGP port number. */
96 /* Listener address */
102 /* Various BGP global configuration. */
104 #define BGP_OPT_NO_FIB (1 << 0)
105 #define BGP_OPT_MULTIPLE_INSTANCE (1 << 1)
106 #define BGP_OPT_CONFIG_CISCO (1 << 2)
107 #define BGP_OPT_NO_LISTEN (1 << 3)
109 u_int64_t updgrp_idspace
;
110 u_int64_t subgrp_idspace
;
112 /* timer to dampen route map changes */
113 struct thread
*t_rmap_update
; /* Handle route map updates */
114 u_int32_t rmap_update_timer
; /* Route map update timer */
115 #define RMAP_DEFAULT_UPDATE_TIMER 5 /* disabled by default */
118 /* BGP route-map structure. */
122 struct route_map
*map
;
129 /* BGP redistribute metric configuration. */
130 u_char redist_metric_flag
;
131 u_int32_t redist_metric
;
133 /* BGP redistribute route-map. */
134 struct bgp_rmap rmap
;
138 * Type of 'struct bgp'.
139 * - Default: The default instance
140 * - VRF: A specific (non-default) VRF
141 * - View: An instance used for route exchange
142 * The "default" instance is treated separately to simplify the code. Note
143 * that if deployed in a Multi-VRF environment, it may not exist.
145 enum bgp_instance_type
147 BGP_INSTANCE_TYPE_DEFAULT
,
148 BGP_INSTANCE_TYPE_VRF
,
149 BGP_INSTANCE_TYPE_VIEW
152 /* BGP instance structure. */
155 /* AS number of this BGP instance. */
158 /* Name of this BGP instance. */
161 /* Type of instance and VRF id. */
162 enum bgp_instance_type inst_type
;
165 /* Reference count to allow peer_delete to finish after bgp_delete */
169 struct peer
*peer_self
;
173 struct hash
*peerhash
;
175 /* BGP peer group. */
178 /* The maximum number of BGP dynamic neighbors that can be created */
179 int dynamic_neighbors_limit
;
181 /* The current number of BGP dynamic neighbors */
182 int dynamic_neighbors_count
;
184 struct hash
*update_groups
[BGP_AF_MAX
];
187 * Global statistics for update groups.
190 u_int32_t join_events
;
191 u_int32_t prune_events
;
192 u_int32_t merge_events
;
193 u_int32_t split_events
;
194 u_int32_t updgrp_switch_events
;
195 u_int32_t peer_refreshes_combined
;
197 u_int32_t merge_checks_triggered
;
199 u_int32_t updgrps_created
;
200 u_int32_t updgrps_deleted
;
201 u_int32_t subgrps_created
;
202 u_int32_t subgrps_deleted
;
203 } update_group_stats
;
205 /* BGP configuration. */
207 #define BGP_CONFIG_CLUSTER_ID (1 << 0)
208 #define BGP_CONFIG_CONFEDERATION (1 << 1)
210 /* BGP router identifier. */
211 struct in_addr router_id
;
212 struct in_addr router_id_static
;
213 struct in_addr router_id_zebra
;
215 /* BGP route reflector cluster ID. */
216 struct in_addr cluster_id
;
218 /* BGP confederation information. */
221 int confed_peers_cnt
;
223 struct thread
*t_startup
; /* start-up timer on only once at the beginning */
225 u_int32_t v_maxmed_onstartup
; /* Duration of max-med on start-up */
226 #define BGP_MAXMED_ONSTARTUP_UNCONFIGURED 0 /* 0 means off, its the default */
227 u_int32_t maxmed_onstartup_value
; /* Max-med value when active on start-up */
228 struct thread
*t_maxmed_onstartup
; /* non-null when max-med onstartup is on */
229 u_char maxmed_onstartup_over
; /* Flag to make it effective only once */
231 u_char v_maxmed_admin
; /* 1/0 if max-med administrative is on/off */
232 #define BGP_MAXMED_ADMIN_UNCONFIGURED 0 /* Off by default */
233 u_int32_t maxmed_admin_value
; /* Max-med value when administrative in on */
234 #define BGP_MAXMED_VALUE_DEFAULT 4294967294 /* Maximum by default */
236 u_char maxmed_active
; /* 1/0 if max-med is active or not */
237 u_int32_t maxmed_value
; /* Max-med value when its active */
239 /* BGP update delay on startup */
240 struct thread
*t_update_delay
;
241 struct thread
*t_establish_wait
;
242 u_char update_delay_over
;
243 u_char main_zebra_update_hold
;
244 u_char main_peers_update_hold
;
245 u_int16_t v_update_delay
;
246 u_int16_t v_establish_wait
;
247 char update_delay_begin_time
[64];
248 char update_delay_end_time
[64];
249 char update_delay_zebra_resume_time
[64];
250 char update_delay_peers_resume_time
[64];
251 u_int32_t established
;
252 u_int32_t restarted_peers
;
253 u_int32_t implicit_eors
;
254 u_int32_t explicit_eors
;
255 #define BGP_UPDATE_DELAY_DEF 0
256 #define BGP_UPDATE_DELAY_MIN 0
257 #define BGP_UPDATE_DELAY_MAX 3600
261 #define BGP_FLAG_ALWAYS_COMPARE_MED (1 << 0)
262 #define BGP_FLAG_DETERMINISTIC_MED (1 << 1)
263 #define BGP_FLAG_MED_MISSING_AS_WORST (1 << 2)
264 #define BGP_FLAG_MED_CONFED (1 << 3)
265 #define BGP_FLAG_NO_DEFAULT_IPV4 (1 << 4)
266 #define BGP_FLAG_NO_CLIENT_TO_CLIENT (1 << 5)
267 #define BGP_FLAG_ENFORCE_FIRST_AS (1 << 6)
268 #define BGP_FLAG_COMPARE_ROUTER_ID (1 << 7)
269 #define BGP_FLAG_ASPATH_IGNORE (1 << 8)
270 #define BGP_FLAG_IMPORT_CHECK (1 << 9)
271 #define BGP_FLAG_NO_FAST_EXT_FAILOVER (1 << 10)
272 #define BGP_FLAG_LOG_NEIGHBOR_CHANGES (1 << 11)
273 #define BGP_FLAG_GRACEFUL_RESTART (1 << 12)
274 #define BGP_FLAG_ASPATH_CONFED (1 << 13)
275 #define BGP_FLAG_ASPATH_MULTIPATH_RELAX (1 << 14)
276 #define BGP_FLAG_RR_ALLOW_OUTBOUND_POLICY (1 << 15)
277 #define BGP_FLAG_DISABLE_NH_CONNECTED_CHK (1 << 16)
278 #define BGP_FLAG_MULTIPATH_RELAX_AS_SET (1 << 17)
279 #define BGP_FLAG_FORCE_STATIC_PROCESS (1 << 18)
280 #define BGP_FLAG_SHOW_HOSTNAME (1 << 19)
282 /* BGP Per AF flags */
283 u_int16_t af_flags
[AFI_MAX
][SAFI_MAX
];
284 #define BGP_CONFIG_DAMPENING (1 << 0)
286 /* Route table for next-hop lookup cache. */
287 struct bgp_table
*nexthop_cache_table
[AFI_MAX
];
289 /* Route table for import-check */
290 struct bgp_table
*import_check_table
[AFI_MAX
];
292 struct bgp_table
*connected_table
[AFI_MAX
];
294 struct hash
*address_hash
;
296 /* Static route configuration. */
297 struct bgp_table
*route
[AFI_MAX
][SAFI_MAX
];
299 /* Aggregate address configuration. */
300 struct bgp_table
*aggregate
[AFI_MAX
][SAFI_MAX
];
302 /* BGP routing information base. */
303 struct bgp_table
*rib
[AFI_MAX
][SAFI_MAX
];
305 /* BGP table route-map. */
306 struct bgp_rmap table_map
[AFI_MAX
][SAFI_MAX
];
308 /* BGP redistribute configuration. */
309 struct list
*redist
[AFI_MAX
][ZEBRA_ROUTE_MAX
];
311 /* timer to re-evaluate neighbor default-originate route-maps */
312 struct thread
*t_rmap_def_originate_eval
;
313 #define RMAP_DEFAULT_ORIGINATE_EVAL_TIMER 5
315 /* BGP distance configuration. */
316 u_char distance_ebgp
;
317 u_char distance_ibgp
;
318 u_char distance_local
;
320 /* BGP default local-preference. */
321 u_int32_t default_local_pref
;
323 /* BGP default subgroup pkt queue max */
324 u_int32_t default_subgroup_pkt_queue_max
;
326 /* BGP default timer. */
327 u_int32_t default_holdtime
;
328 u_int32_t default_keepalive
;
330 /* BGP graceful restart */
331 u_int32_t restart_time
;
332 u_int32_t stalepath_time
;
334 /* Maximum-paths configuration */
335 struct bgp_maxpaths_cfg
{
336 u_int16_t maxpaths_ebgp
;
337 u_int16_t maxpaths_ibgp
;
338 u_int16_t ibgp_flags
;
339 #define BGP_FLAG_IBGP_MULTIPATH_SAME_CLUSTERLEN (1 << 0)
340 } maxpaths
[AFI_MAX
][SAFI_MAX
];
342 u_int32_t wpkt_quanta
; /* per peer packet quanta to write */
343 u_int32_t coalesce_time
;
345 u_int32_t addpath_tx_id
;
346 int addpath_tx_used
[AFI_MAX
][SAFI_MAX
];
349 #define BGP_ROUTE_ADV_HOLD(bgp) (bgp->main_peers_update_hold)
351 #define IS_BGP_INST_KNOWN_TO_ZEBRA(bgp) \
352 (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT || \
353 (bgp->inst_type == BGP_INSTANCE_TYPE_VRF && bgp->vrf_id != VRF_DEFAULT))
355 /* BGP peer-group support. */
358 /* Name of the peer-group. */
361 /* Pointer to BGP. */
364 /* Peer-group client list. */
367 /** Dynamic neighbor listening ranges */
368 struct list
*listen_range
[AFI_MAX
];
370 /* Peer-group config */
374 /* BGP Notify message format. */
383 /* Next hop self address. */
386 struct interface
*ifp
;
389 struct in6_addr v6_global
;
390 struct in6_addr v6_local
;
391 #endif /* HAVE_IPV6 */
394 /* BGP addpath values */
395 #define BGP_ADDPATH_RX 1
396 #define BGP_ADDPATH_TX 2
397 #define BGP_ADDPATH_ID_LEN 4
399 #define BGP_ADDPATH_TX_ID_FOR_DEFAULT_ORIGINATE 1
401 /* BGP router distinguisher value. */
402 #define BGP_RD_SIZE 8
406 u_char val
[BGP_RD_SIZE
];
413 /* BGP filter structure. */
416 /* Distribute-list. */
420 struct access_list
*alist
;
427 struct prefix_list
*plist
;
434 struct as_list
*aslist
;
435 } aslist
[FILTER_MAX
];
441 struct route_map
*map
;
444 /* Unsuppress-map. */
448 struct route_map
*map
;
452 /* IBGP/EBGP identifier. We also have a CONFED peer, which is to say,
453 a peer who's AS is part of our Confederation. */
462 /* BGP message header and packet size. */
463 #define BGP_MARKER_SIZE 16
464 #define BGP_HEADER_SIZE 19
465 #define BGP_MAX_PACKET_SIZE 4096
466 #define BGP_MAX_PACKET_SIZE_OVERFLOW 1024
469 * Trigger delay for bgp_announce_route().
471 #define BGP_ANNOUNCE_ROUTE_SHORT_DELAY_MS 100
472 #define BGP_ANNOUNCE_ROUTE_DELAY_MS 500
476 /* back pointer to the peer */
479 /* which subgroup the peer_af belongs to */
480 struct update_subgroup
*subgroup
;
482 /* for being part of an update subgroup's peer list */
483 LIST_ENTRY(peer_af
) subgrp_train
;
485 /* for being part of a packet's peer list */
486 LIST_ENTRY(peer_af
) pkt_train
;
488 struct bpacket
*next_pkt_to_send
;
491 * Trigger timer for bgp_announce_route().
493 struct thread
*t_announce_route
;
500 /* BGP neighbor structure. */
506 /* reference count, primarily to allow bgp_process'ing of route_node's
507 * to be done after a struct peer is deleted.
509 * named 'lock' for hysterical reasons within Quagga.
513 /* BGP peer group. */
514 struct peer_group
*group
;
515 u_int64_t version
[AFI_MAX
][SAFI_MAX
];
517 /* BGP peer_af structures, per configured AF on this peer */
518 struct peer_af
*peer_af_array
[BGP_AF_MAX
];
520 /* Peer's remote AS number. */
524 /* Peer's local AS number. */
527 bgp_peer_sort_t sort
;
529 /* Peer's Change local AS number. */
530 as_t change_local_as
;
532 /* Remote router ID. */
533 struct in_addr remote_id
;
535 /* Local router ID. */
536 struct in_addr local_id
;
538 /* Packet receive and send buffer. */
540 struct stream_fifo
*obuf
;
543 /* We use a separate stream to encode MP_REACH_NLRI for efficient
544 * NLRI packing. peer->work stores all the other attributes. The
545 * actual packet is then constructed by concatenating the two.
547 struct stream
*scratch
;
549 /* the doppelganger peer structure, due to dual TCP conn setup */
550 struct peer
*doppelganger
;
552 /* Status of the peer. */
556 /* FSM events, stored for debug purposes.
557 * Note: uchar used for reduced memory usage.
559 unsigned char cur_event
;
560 unsigned char last_event
;
561 unsigned char last_major_event
;
563 /* Peer index, used for dumping TABLE_DUMP_V2 format */
564 uint16_t table_dump_index
;
566 /* Peer information */
567 int fd
; /* File descriptor */
568 int ttl
; /* TTL of TCP connection to the peer. */
569 int gtsm_hops
; /* minimum hopcount to peer */
570 char *desc
; /* Description of the peer. */
571 unsigned short port
; /* Destination port for peer */
572 char *host
; /* Printable address of the peer. */
573 union sockunion su
; /* Sockunion address of the peer. */
574 #define BGP_PEER_SU_UNSPEC(peer) (peer->su.sa.sa_family == AF_UNSPEC)
575 time_t uptime
; /* Last Up/Down time */
576 time_t readtime
; /* Last read time */
577 time_t resettime
; /* Last reset time */
579 unsigned int ifindex
; /* ifindex of the BGP connection. */
580 char *conf_if
; /* neighbor interface config name. */
581 char *ifname
; /* bind interface name. */
583 union sockunion
*update_source
;
585 union sockunion
*su_local
; /* Sockunion of local address. */
586 union sockunion
*su_remote
; /* Sockunion of remote address. */
587 int shared_network
; /* Is this peer shared same network. */
588 struct bgp_nexthop nexthop
; /* Nexthop */
590 /* Peer address family configuration. */
591 u_char afc
[AFI_MAX
][SAFI_MAX
];
592 u_char afc_nego
[AFI_MAX
][SAFI_MAX
];
593 u_char afc_adv
[AFI_MAX
][SAFI_MAX
];
594 u_char afc_recv
[AFI_MAX
][SAFI_MAX
];
596 /* Capability flags (reset in bgp_stop) */
598 #define PEER_CAP_REFRESH_ADV (1 << 0) /* refresh advertised */
599 #define PEER_CAP_REFRESH_OLD_RCV (1 << 1) /* refresh old received */
600 #define PEER_CAP_REFRESH_NEW_RCV (1 << 2) /* refresh rfc received */
601 #define PEER_CAP_DYNAMIC_ADV (1 << 3) /* dynamic advertised */
602 #define PEER_CAP_DYNAMIC_RCV (1 << 4) /* dynamic received */
603 #define PEER_CAP_RESTART_ADV (1 << 5) /* restart advertised */
604 #define PEER_CAP_RESTART_RCV (1 << 6) /* restart received */
605 #define PEER_CAP_AS4_ADV (1 << 7) /* as4 advertised */
606 #define PEER_CAP_AS4_RCV (1 << 8) /* as4 received */
607 #define PEER_CAP_RESTART_BIT_ADV (1 << 9) /* sent restart state */
608 #define PEER_CAP_RESTART_BIT_RCV (1 << 10) /* peer restart state */
609 #define PEER_CAP_ADDPATH_ADV (1 << 11) /* addpath advertised */
610 #define PEER_CAP_ADDPATH_RCV (1 << 12) /* addpath received */
611 #define PEER_CAP_ENHE_ADV (1 << 13) /* Extended nexthop advertised */
612 #define PEER_CAP_ENHE_RCV (1 << 14) /* Extended nexthop received */
613 #define PEER_CAP_HOSTNAME_ADV (1 << 15) /* hostname advertised */
614 #define PEER_CAP_HOSTNAME_RCV (1 << 16) /* hostname received */
616 /* Capability flags (reset in bgp_stop) */
617 u_int32_t af_cap
[AFI_MAX
][SAFI_MAX
];
618 #define PEER_CAP_ORF_PREFIX_SM_ADV (1 << 0) /* send-mode advertised */
619 #define PEER_CAP_ORF_PREFIX_RM_ADV (1 << 1) /* receive-mode advertised */
620 #define PEER_CAP_ORF_PREFIX_SM_RCV (1 << 2) /* send-mode received */
621 #define PEER_CAP_ORF_PREFIX_RM_RCV (1 << 3) /* receive-mode received */
622 #define PEER_CAP_ORF_PREFIX_SM_OLD_RCV (1 << 4) /* send-mode received */
623 #define PEER_CAP_ORF_PREFIX_RM_OLD_RCV (1 << 5) /* receive-mode received */
624 #define PEER_CAP_RESTART_AF_RCV (1 << 6) /* graceful restart afi/safi received */
625 #define PEER_CAP_RESTART_AF_PRESERVE_RCV (1 << 7) /* graceful restart afi/safi F-bit received */
626 #define PEER_CAP_ADDPATH_AF_TX_ADV (1 << 8) /* addpath tx advertised */
627 #define PEER_CAP_ADDPATH_AF_TX_RCV (1 << 9) /* addpath tx received */
628 #define PEER_CAP_ADDPATH_AF_RX_ADV (1 << 10) /* addpath rx advertised */
629 #define PEER_CAP_ADDPATH_AF_RX_RCV (1 << 11) /* addpath rx received */
630 #define PEER_CAP_ENHE_AF_ADV (1 << 12) /* Extended nexthopi afi/safi advertised */
631 #define PEER_CAP_ENHE_AF_RCV (1 << 13) /* Extended nexthop afi/safi received */
632 #define PEER_CAP_ENHE_AF_NEGO (1 << 14) /* Extended nexthop afi/safi negotiated */
634 /* Global configuration flags. */
636 #define PEER_FLAG_PASSIVE (1 << 0) /* passive mode */
637 #define PEER_FLAG_SHUTDOWN (1 << 1) /* shutdown */
638 #define PEER_FLAG_DONT_CAPABILITY (1 << 2) /* dont-capability */
639 #define PEER_FLAG_OVERRIDE_CAPABILITY (1 << 3) /* override-capability */
640 #define PEER_FLAG_STRICT_CAP_MATCH (1 << 4) /* strict-match */
641 #define PEER_FLAG_DYNAMIC_CAPABILITY (1 << 5) /* dynamic capability */
642 #define PEER_FLAG_DISABLE_CONNECTED_CHECK (1 << 6) /* disable-connected-check */
643 #define PEER_FLAG_LOCAL_AS_NO_PREPEND (1 << 7) /* local-as no-prepend */
644 #define PEER_FLAG_LOCAL_AS_REPLACE_AS (1 << 8) /* local-as no-prepend replace-as */
645 #define PEER_FLAG_DELETE (1 << 9) /* mark the peer for deleting */
646 #define PEER_FLAG_CONFIG_NODE (1 << 10) /* the node to update configs on */
647 #define PEER_FLAG_LONESOUL (1 << 11)
648 #define PEER_FLAG_DYNAMIC_NEIGHBOR (1 << 12) /* dynamic neighbor */
649 #define PEER_FLAG_CAPABILITY_ENHE (1 << 13) /* Extended next-hop (rfc 5549)*/
650 #define PEER_FLAG_IFPEER_V6ONLY (1 << 14) /* if-based peer is v6 only */
652 /* NSF mode (graceful restart) */
653 u_char nsf
[AFI_MAX
][SAFI_MAX
];
655 /* Per AF configuration flags. */
656 u_int32_t af_flags
[AFI_MAX
][SAFI_MAX
];
657 #define PEER_FLAG_SEND_COMMUNITY (1 << 0) /* send-community */
658 #define PEER_FLAG_SEND_EXT_COMMUNITY (1 << 1) /* send-community ext. */
659 #define PEER_FLAG_NEXTHOP_SELF (1 << 2) /* next-hop-self */
660 #define PEER_FLAG_REFLECTOR_CLIENT (1 << 3) /* reflector-client */
661 #define PEER_FLAG_RSERVER_CLIENT (1 << 4) /* route-server-client */
662 #define PEER_FLAG_SOFT_RECONFIG (1 << 5) /* soft-reconfiguration */
663 #define PEER_FLAG_AS_PATH_UNCHANGED (1 << 6) /* transparent-as */
664 #define PEER_FLAG_NEXTHOP_UNCHANGED (1 << 7) /* transparent-next-hop */
665 #define PEER_FLAG_MED_UNCHANGED (1 << 8) /* transparent-next-hop */
666 #define PEER_FLAG_DEFAULT_ORIGINATE (1 << 9) /* default-originate */
667 #define PEER_FLAG_REMOVE_PRIVATE_AS (1 << 10) /* remove-private-as */
668 #define PEER_FLAG_ALLOWAS_IN (1 << 11) /* set allowas-in */
669 #define PEER_FLAG_ORF_PREFIX_SM (1 << 12) /* orf capability send-mode */
670 #define PEER_FLAG_ORF_PREFIX_RM (1 << 13) /* orf capability receive-mode */
671 #define PEER_FLAG_MAX_PREFIX (1 << 14) /* maximum prefix */
672 #define PEER_FLAG_MAX_PREFIX_WARNING (1 << 15) /* maximum prefix warning-only */
673 #define PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED (1 << 16) /* leave link-local nexthop unchanged */
674 #define PEER_FLAG_FORCE_NEXTHOP_SELF (1 << 17) /* next-hop-self force */
675 #define PEER_FLAG_REMOVE_PRIVATE_AS_ALL (1 << 18) /* remove-private-as all */
676 #define PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE (1 << 19) /* remove-private-as replace-as */
677 #define PEER_FLAG_AS_OVERRIDE (1 << 20) /* as-override */
678 #define PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE (1 << 21) /* remove-private-as all replace-as */
679 #define PEER_FLAG_ADDPATH_TX_ALL_PATHS (1 << 22) /* addpath-tx-all-paths */
680 #define PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS (1 << 23) /* addpath-tx-bestpath-per-AS */
685 /* default-originate route-map. */
689 struct route_map
*map
;
690 } default_rmap
[AFI_MAX
][SAFI_MAX
];
692 /* Peer status flags. */
694 #define PEER_STATUS_ACCEPT_PEER (1 << 0) /* accept peer */
695 #define PEER_STATUS_PREFIX_OVERFLOW (1 << 1) /* prefix-overflow */
696 #define PEER_STATUS_CAPABILITY_OPEN (1 << 2) /* capability open send */
697 #define PEER_STATUS_HAVE_ACCEPT (1 << 3) /* accept peer's parent */
698 #define PEER_STATUS_GROUP (1 << 4) /* peer-group conf */
699 #define PEER_STATUS_NSF_MODE (1 << 5) /* NSF aware peer */
700 #define PEER_STATUS_NSF_WAIT (1 << 6) /* wait comeback peer */
702 /* Peer status af flags (reset in bgp_stop) */
703 u_int16_t af_sflags
[AFI_MAX
][SAFI_MAX
];
704 #define PEER_STATUS_ORF_PREFIX_SEND (1 << 0) /* prefix-list send peer */
705 #define PEER_STATUS_ORF_WAIT_REFRESH (1 << 1) /* wait refresh received peer */
706 #define PEER_STATUS_PREFIX_THRESHOLD (1 << 2) /* exceed prefix-threshold */
707 #define PEER_STATUS_PREFIX_LIMIT (1 << 3) /* exceed prefix-limit */
708 #define PEER_STATUS_EOR_SEND (1 << 4) /* end-of-rib send to peer */
709 #define PEER_STATUS_EOR_RECEIVED (1 << 5) /* end-of-rib received from peer */
711 /* Default attribute value for the peer. */
713 #define PEER_CONFIG_WEIGHT (1 << 0) /* Default weight. */
714 #define PEER_CONFIG_TIMER (1 << 1) /* keepalive & holdtime */
715 #define PEER_CONFIG_CONNECT (1 << 2) /* connect */
716 #define PEER_CONFIG_ROUTEADV (1 << 3) /* route advertise */
727 u_int32_t v_holdtime
;
728 u_int32_t v_keepalive
;
729 u_int32_t v_routeadv
;
730 u_int32_t v_pmax_restart
;
731 u_int32_t v_gr_restart
;
734 struct thread
*t_read
;
735 struct thread
*t_write
;
736 struct thread
*t_start
;
737 struct thread
*t_connect
;
738 struct thread
*t_holdtime
;
739 struct thread
*t_keepalive
;
740 struct thread
*t_routeadv
;
741 struct thread
*t_pmax_restart
;
742 struct thread
*t_gr_restart
;
743 struct thread
*t_gr_stale
;
746 struct work_queue
*clear_node_queue
;
748 /* Statistics field */
749 u_int32_t open_in
; /* Open message input count */
750 u_int32_t open_out
; /* Open message output count */
751 u_int32_t update_in
; /* Update message input count */
752 u_int32_t update_out
; /* Update message ouput count */
753 time_t update_time
; /* Update message received time. */
754 u_int32_t keepalive_in
; /* Keepalive input count */
755 u_int32_t keepalive_out
; /* Keepalive output count */
756 u_int32_t notify_in
; /* Notify input count */
757 u_int32_t notify_out
; /* Notify output count */
758 u_int32_t refresh_in
; /* Route Refresh input count */
759 u_int32_t refresh_out
; /* Route Refresh output count */
760 u_int32_t dynamic_cap_in
; /* Dynamic Capability input count. */
761 u_int32_t dynamic_cap_out
; /* Dynamic Capability output count. */
763 /* BGP state count */
764 u_int32_t established
; /* Established */
765 u_int32_t dropped
; /* Dropped */
767 /* Update delay related fields */
768 u_char update_delay_over
; /* When this is set, BGP is no more waiting for EOR */
770 /* Syncronization list and time. */
771 struct bgp_synchronize
*sync
[AFI_MAX
][SAFI_MAX
];
773 time_t last_write
; /* timestamp when the last UPDATE msg was written */
775 /* Send prefix count. */
776 unsigned long scount
[AFI_MAX
][SAFI_MAX
];
778 /* Announcement attribute hash. */
779 struct hash
*hash
[AFI_MAX
][SAFI_MAX
];
782 struct bgp_notify notify
;
784 /* Whole packet size to be read. */
785 unsigned long packet_size
;
787 /* Filter structure. */
788 struct bgp_filter filter
[AFI_MAX
][SAFI_MAX
];
790 /* ORF Prefix-list */
791 struct prefix_list
*orf_plist
[AFI_MAX
][SAFI_MAX
];
793 /* Text description of last attribute rcvd */
794 char rcvd_attr_str
[BUFSIZ
];
796 /* Track if we printed the attribute in debugs */
797 int rcvd_attr_printed
;
800 unsigned long pcount
[AFI_MAX
][SAFI_MAX
];
802 /* Max prefix count. */
803 unsigned long pmax
[AFI_MAX
][SAFI_MAX
];
804 u_char pmax_threshold
[AFI_MAX
][SAFI_MAX
];
805 u_int16_t pmax_restart
[AFI_MAX
][SAFI_MAX
];
806 #define MAXIMUM_PREFIX_THRESHOLD_DEFAULT 75
809 char allowas_in
[AFI_MAX
][SAFI_MAX
];
811 /* peer reset cause */
813 #define PEER_DOWN_RID_CHANGE 1 /* bgp router-id command */
814 #define PEER_DOWN_REMOTE_AS_CHANGE 2 /* neighbor remote-as command */
815 #define PEER_DOWN_LOCAL_AS_CHANGE 3 /* neighbor local-as command */
816 #define PEER_DOWN_CLID_CHANGE 4 /* bgp cluster-id command */
817 #define PEER_DOWN_CONFED_ID_CHANGE 5 /* bgp confederation identifier command */
818 #define PEER_DOWN_CONFED_PEER_CHANGE 6 /* bgp confederation peer command */
819 #define PEER_DOWN_RR_CLIENT_CHANGE 7 /* neighbor route-reflector-client command */
820 #define PEER_DOWN_RS_CLIENT_CHANGE 8 /* neighbor route-server-client command */
821 #define PEER_DOWN_UPDATE_SOURCE_CHANGE 9 /* neighbor update-source command */
822 #define PEER_DOWN_AF_ACTIVATE 10 /* neighbor activate command */
823 #define PEER_DOWN_USER_SHUTDOWN 11 /* neighbor shutdown command */
824 #define PEER_DOWN_USER_RESET 12 /* clear ip bgp command */
825 #define PEER_DOWN_NOTIFY_RECEIVED 13 /* notification received */
826 #define PEER_DOWN_NOTIFY_SEND 14 /* notification send */
827 #define PEER_DOWN_CLOSE_SESSION 15 /* tcp session close */
828 #define PEER_DOWN_NEIGHBOR_DELETE 16 /* neghbor delete */
829 #define PEER_DOWN_RMAP_BIND 17 /* neghbor peer-group command */
830 #define PEER_DOWN_RMAP_UNBIND 18 /* no neighbor peer-group command */
831 #define PEER_DOWN_CAPABILITY_CHANGE 19 /* neighbor capability command */
832 #define PEER_DOWN_PASSIVE_CHANGE 20 /* neighbor passive command */
833 #define PEER_DOWN_MULTIHOP_CHANGE 21 /* neighbor multihop command */
834 #define PEER_DOWN_NSF_CLOSE_SESSION 22 /* NSF tcp session close */
835 #define PEER_DOWN_V6ONLY_CHANGE 23 /* if-based peering v6only toggled */
836 #define PEER_DOWN_BFD_DOWN 24 /* BFD down */
837 unsigned long last_reset_cause_size
;
838 u_char last_reset_cause
[BGP_MAX_PACKET_SIZE
];
840 /* The kind of route-map Flags.*/
842 #define PEER_RMAP_TYPE_IN (1 << 0) /* neighbor route-map in */
843 #define PEER_RMAP_TYPE_OUT (1 << 1) /* neighbor route-map out */
844 #define PEER_RMAP_TYPE_NETWORK (1 << 2) /* network route-map */
845 #define PEER_RMAP_TYPE_REDISTRIBUTE (1 << 3) /* redistribute route-map */
846 #define PEER_RMAP_TYPE_DEFAULT (1 << 4) /* default-originate route-map */
847 #define PEER_RMAP_TYPE_NOSET (1 << 5) /* not allow to set commands */
848 #define PEER_RMAP_TYPE_IMPORT (1 << 6) /* neighbor route-map import */
849 #define PEER_RMAP_TYPE_EXPORT (1 << 7) /* neighbor route-map export */
851 /* peer specific BFD information */
852 struct bfd_info
*bfd_info
;
854 /* hostname and domainname advertised by host */
859 /* Check if suppress start/restart of sessions to peer. */
860 #define BGP_PEER_START_SUPPRESSED(P) \
861 (CHECK_FLAG ((P)->flags, PEER_FLAG_SHUTDOWN) \
862 || CHECK_FLAG ((P)->sflags, PEER_STATUS_PREFIX_OVERFLOW))
864 #define PEER_PASSWORD_MINLEN (1)
865 #define PEER_PASSWORD_MAXLEN (80)
867 /* This structure's member directly points incoming packet data
877 /* Pointer to NLRI byte stream. */
880 /* Length of whole NLRI. */
885 #define BGP_VERSION_4 4
887 /* Default BGP port number. */
888 #define BGP_PORT_DEFAULT 179
890 /* BGP minimum message size. */
891 #define BGP_MSG_OPEN_MIN_SIZE (BGP_HEADER_SIZE + 10)
892 #define BGP_MSG_UPDATE_MIN_SIZE (BGP_HEADER_SIZE + 4)
893 #define BGP_MSG_NOTIFY_MIN_SIZE (BGP_HEADER_SIZE + 2)
894 #define BGP_MSG_KEEPALIVE_MIN_SIZE (BGP_HEADER_SIZE + 0)
895 #define BGP_MSG_ROUTE_REFRESH_MIN_SIZE (BGP_HEADER_SIZE + 4)
896 #define BGP_MSG_CAPABILITY_MIN_SIZE (BGP_HEADER_SIZE + 3)
898 /* BGP message types. */
899 #define BGP_MSG_OPEN 1
900 #define BGP_MSG_UPDATE 2
901 #define BGP_MSG_NOTIFY 3
902 #define BGP_MSG_KEEPALIVE 4
903 #define BGP_MSG_ROUTE_REFRESH_NEW 5
904 #define BGP_MSG_CAPABILITY 6
905 #define BGP_MSG_ROUTE_REFRESH_OLD 128
907 /* BGP open optional parameter. */
908 #define BGP_OPEN_OPT_AUTH 1
909 #define BGP_OPEN_OPT_CAP 2
911 /* BGP4 attribute type codes. */
912 #define BGP_ATTR_ORIGIN 1
913 #define BGP_ATTR_AS_PATH 2
914 #define BGP_ATTR_NEXT_HOP 3
915 #define BGP_ATTR_MULTI_EXIT_DISC 4
916 #define BGP_ATTR_LOCAL_PREF 5
917 #define BGP_ATTR_ATOMIC_AGGREGATE 6
918 #define BGP_ATTR_AGGREGATOR 7
919 #define BGP_ATTR_COMMUNITIES 8
920 #define BGP_ATTR_ORIGINATOR_ID 9
921 #define BGP_ATTR_CLUSTER_LIST 10
922 #define BGP_ATTR_DPA 11
923 #define BGP_ATTR_ADVERTISER 12
924 #define BGP_ATTR_RCID_PATH 13
925 #define BGP_ATTR_MP_REACH_NLRI 14
926 #define BGP_ATTR_MP_UNREACH_NLRI 15
927 #define BGP_ATTR_EXT_COMMUNITIES 16
928 #define BGP_ATTR_AS4_PATH 17
929 #define BGP_ATTR_AS4_AGGREGATOR 18
930 #define BGP_ATTR_AS_PATHLIMIT 21
932 /* BGP update origin. */
933 #define BGP_ORIGIN_IGP 0
934 #define BGP_ORIGIN_EGP 1
935 #define BGP_ORIGIN_INCOMPLETE 2
937 /* BGP notify message codes. */
938 #define BGP_NOTIFY_HEADER_ERR 1
939 #define BGP_NOTIFY_OPEN_ERR 2
940 #define BGP_NOTIFY_UPDATE_ERR 3
941 #define BGP_NOTIFY_HOLD_ERR 4
942 #define BGP_NOTIFY_FSM_ERR 5
943 #define BGP_NOTIFY_CEASE 6
944 #define BGP_NOTIFY_CAPABILITY_ERR 7
945 #define BGP_NOTIFY_MAX 8
947 #define BGP_NOTIFY_SUBCODE_UNSPECIFIC 0
949 /* BGP_NOTIFY_HEADER_ERR sub codes. */
950 #define BGP_NOTIFY_HEADER_NOT_SYNC 1
951 #define BGP_NOTIFY_HEADER_BAD_MESLEN 2
952 #define BGP_NOTIFY_HEADER_BAD_MESTYPE 3
953 #define BGP_NOTIFY_HEADER_MAX 4
955 /* BGP_NOTIFY_OPEN_ERR sub codes. */
956 #define BGP_NOTIFY_OPEN_MALFORMED_ATTR 0
957 #define BGP_NOTIFY_OPEN_UNSUP_VERSION 1
958 #define BGP_NOTIFY_OPEN_BAD_PEER_AS 2
959 #define BGP_NOTIFY_OPEN_BAD_BGP_IDENT 3
960 #define BGP_NOTIFY_OPEN_UNSUP_PARAM 4
961 #define BGP_NOTIFY_OPEN_AUTH_FAILURE 5
962 #define BGP_NOTIFY_OPEN_UNACEP_HOLDTIME 6
963 #define BGP_NOTIFY_OPEN_UNSUP_CAPBL 7
964 #define BGP_NOTIFY_OPEN_MAX 8
966 /* BGP_NOTIFY_UPDATE_ERR sub codes. */
967 #define BGP_NOTIFY_UPDATE_MAL_ATTR 1
968 #define BGP_NOTIFY_UPDATE_UNREC_ATTR 2
969 #define BGP_NOTIFY_UPDATE_MISS_ATTR 3
970 #define BGP_NOTIFY_UPDATE_ATTR_FLAG_ERR 4
971 #define BGP_NOTIFY_UPDATE_ATTR_LENG_ERR 5
972 #define BGP_NOTIFY_UPDATE_INVAL_ORIGIN 6
973 #define BGP_NOTIFY_UPDATE_AS_ROUTE_LOOP 7
974 #define BGP_NOTIFY_UPDATE_INVAL_NEXT_HOP 8
975 #define BGP_NOTIFY_UPDATE_OPT_ATTR_ERR 9
976 #define BGP_NOTIFY_UPDATE_INVAL_NETWORK 10
977 #define BGP_NOTIFY_UPDATE_MAL_AS_PATH 11
978 #define BGP_NOTIFY_UPDATE_MAX 12
980 /* BGP_NOTIFY_CEASE sub codes (RFC 4486). */
981 #define BGP_NOTIFY_CEASE_MAX_PREFIX 1
982 #define BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN 2
983 #define BGP_NOTIFY_CEASE_PEER_UNCONFIG 3
984 #define BGP_NOTIFY_CEASE_ADMIN_RESET 4
985 #define BGP_NOTIFY_CEASE_CONNECT_REJECT 5
986 #define BGP_NOTIFY_CEASE_CONFIG_CHANGE 6
987 #define BGP_NOTIFY_CEASE_COLLISION_RESOLUTION 7
988 #define BGP_NOTIFY_CEASE_OUT_OF_RESOURCE 8
989 #define BGP_NOTIFY_CEASE_MAX 9
991 /* BGP_NOTIFY_CAPABILITY_ERR sub codes (draft-ietf-idr-dynamic-cap-02). */
992 #define BGP_NOTIFY_CAPABILITY_INVALID_ACTION 1
993 #define BGP_NOTIFY_CAPABILITY_INVALID_LENGTH 2
994 #define BGP_NOTIFY_CAPABILITY_MALFORMED_CODE 3
995 #define BGP_NOTIFY_CAPABILITY_MAX 4
997 /* BGP finite state machine status. */
1002 #define OpenConfirm 5
1003 #define Established 6
1006 #define BGP_STATUS_MAX 9
1008 /* BGP finite state machine events. */
1011 #define TCP_connection_open 3
1012 #define TCP_connection_closed 4
1013 #define TCP_connection_open_failed 5
1014 #define TCP_fatal_error 6
1015 #define ConnectRetry_timer_expired 7
1016 #define Hold_Timer_expired 8
1017 #define KeepAlive_timer_expired 9
1018 #define Receive_OPEN_message 10
1019 #define Receive_KEEPALIVE_message 11
1020 #define Receive_UPDATE_message 12
1021 #define Receive_NOTIFICATION_message 13
1022 #define Clearing_Completed 14
1023 #define BGP_EVENTS_MAX 15
1025 /* BGP timers default value. */
1026 #define BGP_INIT_START_TIMER 1
1027 #define BGP_DEFAULT_HOLDTIME 9
1028 #define BGP_DEFAULT_KEEPALIVE 3
1029 #define BGP_DEFAULT_EBGP_ROUTEADV 0
1030 #define BGP_DEFAULT_IBGP_ROUTEADV 0
1031 #define BGP_DEFAULT_CONNECT_RETRY 10
1033 /* BGP default local preference. */
1034 #define BGP_DEFAULT_LOCAL_PREF 100
1036 /* BGP default subgroup packet queue max . */
1037 #define BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX 40
1039 /* BGP graceful restart */
1040 #define BGP_DEFAULT_RESTART_TIME 120
1041 #define BGP_DEFAULT_STALEPATH_TIME 360
1044 #define SAFI_MPLS_LABELED_VPN 128
1046 /* BGP uptime string length. */
1047 #define BGP_UPTIME_LEN 25
1049 /* Default configuration settings for bgpd. */
1050 #define BGP_VTY_PORT 2605
1051 #define BGP_DEFAULT_CONFIG "bgpd.conf"
1053 /* Check AS path loop when we send NLRI. */
1054 /* #define BGP_SEND_ASPATH_CHECK */
1056 /* BGP Dynamic Neighbors feature */
1057 #define BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT 100
1058 #define BGP_DYNAMIC_NEIGHBORS_LIMIT_MIN 1
1059 #define BGP_DYNAMIC_NEIGHBORS_LIMIT_MAX 5000
1061 /* Flag for peer_clear_soft(). */
1064 BGP_CLEAR_SOFT_NONE
,
1067 BGP_CLEAR_SOFT_BOTH
,
1068 BGP_CLEAR_SOFT_IN_ORF_PREFIX
1072 #define BGP_INPUT(P) ((P)->ibuf)
1073 #define BGP_INPUT_PNT(P) (STREAM_PNT(BGP_INPUT(P)))
1074 #define BGP_IS_VALID_STATE_FOR_NOTIF(S)\
1075 (((S) == OpenSent) || ((S) == OpenConfirm) || ((S) == Established))
1077 /* BGP error codes. */
1078 #define BGP_SUCCESS 0
1079 #define BGP_ERR_INVALID_VALUE -1
1080 #define BGP_ERR_INVALID_FLAG -2
1081 #define BGP_ERR_INVALID_AS -3
1082 #define BGP_ERR_INVALID_BGP -4
1083 #define BGP_ERR_PEER_GROUP_MEMBER -5
1084 #define BGP_ERR_MULTIPLE_INSTANCE_USED -6
1085 #define BGP_ERR_PEER_GROUP_NO_REMOTE_AS -7
1086 #define BGP_ERR_PEER_GROUP_CANT_CHANGE -8
1087 #define BGP_ERR_PEER_GROUP_MISMATCH -9
1088 #define BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT -10
1089 #define BGP_ERR_MULTIPLE_INSTANCE_NOT_SET -11
1090 #define BGP_ERR_AS_MISMATCH -12
1091 #define BGP_ERR_PEER_FLAG_CONFLICT -13
1092 #define BGP_ERR_PEER_GROUP_SHUTDOWN -14
1093 #define BGP_ERR_PEER_FILTER_CONFLICT -15
1094 #define BGP_ERR_NOT_INTERNAL_PEER -16
1095 #define BGP_ERR_REMOVE_PRIVATE_AS -17
1096 #define BGP_ERR_AF_UNCONFIGURED -18
1097 #define BGP_ERR_SOFT_RECONFIG_UNCONFIGURED -19
1098 #define BGP_ERR_INSTANCE_MISMATCH -20
1099 #define BGP_ERR_LOCAL_AS_ALLOWED_ONLY_FOR_EBGP -21
1100 #define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS -22
1101 #define BGP_ERR_TCPSIG_FAILED -23
1102 #define BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK -24
1103 #define BGP_ERR_NO_IBGP_WITH_TTLHACK -25
1104 #define BGP_ERR_NO_INTERFACE_CONFIG -26
1105 #define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS_REMOTE_AS -27
1106 #define BGP_ERR_AS_OVERRIDE -28
1107 #define BGP_ERR_INVALID_DYNAMIC_NEIGHBORS_LIMIT -29
1108 #define BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_EXISTS -30
1109 #define BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_NOT_FOUND -31
1110 #define BGP_ERR_INVALID_FOR_DYNAMIC_PEER -32
1111 #define BGP_ERR_MAX -33
1114 * Enumeration of different policy kinds a peer can be configured with.
1118 BGP_POLICY_ROUTE_MAP
,
1119 BGP_POLICY_FILTER_LIST
,
1120 BGP_POLICY_PREFIX_LIST
,
1121 BGP_POLICY_DISTRIBUTE_LIST
,
1122 } bgp_policy_type_e
;
1124 extern struct bgp_master
*bm
;
1127 extern void bgp_terminate (void);
1128 extern void bgp_reset (void);
1129 extern time_t bgp_clock (void);
1130 extern void bgp_zclient_reset (void);
1131 extern int bgp_nexthop_set (union sockunion
*, union sockunion
*,
1132 struct bgp_nexthop
*, struct peer
*);
1133 extern struct bgp
*bgp_get_default (void);
1134 extern struct bgp
*bgp_lookup (as_t
, const char *);
1135 extern struct bgp
*bgp_lookup_by_name (const char *);
1136 extern struct bgp
*bgp_lookup_by_vrf_id (vrf_id_t
);
1137 extern struct peer
*peer_lookup (struct bgp
*, union sockunion
*);
1138 extern struct peer
*peer_lookup_by_conf_if (struct bgp
*, const char *);
1139 extern struct peer
*peer_lookup_by_hostname(struct bgp
*, const char *);
1140 extern void bgp_peer_conf_if_to_su_update (struct peer
*);
1141 extern int peer_group_listen_range_del(struct peer_group
*, struct prefix
*);
1142 extern struct peer_group
*peer_group_lookup (struct bgp
*, const char *);
1143 extern struct peer_group
*peer_group_get (struct bgp
*, const char *);
1144 extern struct peer
*peer_create_bind_dynamic_neighbor (struct bgp
*,
1145 union sockunion
*, struct peer_group
*);
1146 extern struct prefix
*peer_group_lookup_dynamic_neighbor_range (
1147 struct peer_group
*, struct prefix
*);
1148 extern struct peer_group
*peer_group_lookup_dynamic_neighbor (struct bgp
*,
1149 struct prefix
*, struct prefix
**);
1150 extern struct peer
*peer_lookup_dynamic_neighbor (struct bgp
*,
1152 extern void peer_drop_dynamic_neighbor (struct peer
*);
1155 * Peers are incredibly easy to memory leak
1156 * due to the various ways that they are actually used
1157 * Provide some functionality to debug locks and unlocks
1159 extern struct peer
*peer_lock_with_caller(const char *, struct peer
*);
1160 extern struct peer
*peer_unlock_with_caller(const char *, struct peer
*);
1161 #define peer_unlock(A) peer_unlock_with_caller(__FUNCTION__, (A))
1162 #define peer_lock(B) peer_lock_with_caller(__FUNCTION__, (B))
1164 extern bgp_peer_sort_t
peer_sort (struct peer
*peer
);
1165 extern int peer_active (struct peer
*);
1166 extern int peer_active_nego (struct peer
*);
1167 extern void bgp_recalculate_all_bestpaths (struct bgp
*bgp
);
1168 extern struct peer
*peer_create(union sockunion
*, const char *, struct bgp
*,
1169 as_t
, as_t
, int, afi_t
, safi_t
);
1170 extern struct peer
*peer_create_accept (struct bgp
*);
1171 extern void peer_xfer_config (struct peer
*dst
, struct peer
*src
);
1172 extern char *peer_uptime (time_t, char *, size_t, u_char
, json_object
*);
1174 extern int bgp_config_write (struct vty
*);
1175 extern void bgp_config_write_family_header (struct vty
*, afi_t
, safi_t
, int *);
1177 extern void bgp_master_init (void);
1179 extern void bgp_init (void);
1180 extern void bgp_route_map_init (void);
1181 extern void bgp_session_reset (struct peer
*);
1183 extern int bgp_option_set (int);
1184 extern int bgp_option_unset (int);
1185 extern int bgp_option_check (int);
1187 extern int bgp_get (struct bgp
**, as_t
*, const char *, enum bgp_instance_type
);
1188 extern void bgp_instance_up (struct bgp
*);
1189 extern void bgp_instance_down (struct bgp
*);
1190 extern int bgp_delete (struct bgp
*);
1192 extern int bgp_flag_set (struct bgp
*, int);
1193 extern int bgp_flag_unset (struct bgp
*, int);
1194 extern int bgp_flag_check (struct bgp
*, int);
1196 extern void bgp_lock (struct bgp
*);
1197 extern void bgp_unlock (struct bgp
*);
1199 extern int bgp_router_id_set (struct bgp
*, struct in_addr
*);
1201 extern int bgp_cluster_id_set (struct bgp
*, struct in_addr
*);
1202 extern int bgp_cluster_id_unset (struct bgp
*);
1204 extern int bgp_confederation_id_set (struct bgp
*, as_t
);
1205 extern int bgp_confederation_id_unset (struct bgp
*);
1206 extern int bgp_confederation_peers_check (struct bgp
*, as_t
);
1208 extern int bgp_confederation_peers_add (struct bgp
*, as_t
);
1209 extern int bgp_confederation_peers_remove (struct bgp
*, as_t
);
1211 extern int bgp_timers_set (struct bgp
*, u_int32_t
, u_int32_t
);
1212 extern int bgp_timers_unset (struct bgp
*);
1214 extern int bgp_default_local_preference_set (struct bgp
*, u_int32_t
);
1215 extern int bgp_default_local_preference_unset (struct bgp
*);
1217 extern int bgp_default_subgroup_pkt_queue_max_set (struct bgp
*bgp
, u_int32_t
);
1218 extern int bgp_default_subgroup_pkt_queue_max_unset (struct bgp
*bgp
);
1220 extern int bgp_listen_limit_set (struct bgp
*, int);
1221 extern int bgp_listen_limit_unset (struct bgp
*);
1223 extern int bgp_update_delay_active (struct bgp
*);
1224 extern int bgp_update_delay_configured (struct bgp
*);
1225 extern void peer_as_change (struct peer
*, as_t
, int);
1226 extern int peer_remote_as (struct bgp
*, union sockunion
*,const char *, as_t
*,
1227 int, afi_t
, safi_t
);
1228 extern int peer_group_remote_as (struct bgp
*, const char *, as_t
*, int);
1229 extern int peer_delete (struct peer
*peer
);
1230 extern int peer_group_delete (struct peer_group
*);
1231 extern int peer_group_remote_as_delete (struct peer_group
*);
1232 extern int peer_group_listen_range_add(struct peer_group
*, struct prefix
*);
1234 extern int peer_activate (struct peer
*, afi_t
, safi_t
);
1235 extern int peer_deactivate (struct peer
*, afi_t
, safi_t
);
1237 extern int peer_group_bind (struct bgp
*, union sockunion
*, struct peer
*,
1238 struct peer_group
*, as_t
*);
1239 extern int peer_group_unbind (struct bgp
*, struct peer
*, struct peer_group
*);
1241 extern int peer_flag_set (struct peer
*, u_int32_t
);
1242 extern int peer_flag_unset (struct peer
*, u_int32_t
);
1244 extern int peer_af_flag_set (struct peer
*, afi_t
, safi_t
, u_int32_t
);
1245 extern int peer_af_flag_unset (struct peer
*, afi_t
, safi_t
, u_int32_t
);
1246 extern int peer_af_flag_check (struct peer
*, afi_t
, safi_t
, u_int32_t
);
1248 extern int peer_ebgp_multihop_set (struct peer
*, int);
1249 extern int peer_ebgp_multihop_unset (struct peer
*);
1250 extern int is_ebgp_multihop_configured (struct peer
*peer
);
1252 extern int peer_description_set (struct peer
*, char *);
1253 extern int peer_description_unset (struct peer
*);
1255 extern int peer_update_source_if_set (struct peer
*, const char *);
1256 extern int peer_update_source_addr_set (struct peer
*, union sockunion
*);
1257 extern int peer_update_source_unset (struct peer
*);
1259 extern int peer_default_originate_set (struct peer
*, afi_t
, safi_t
, const char *);
1260 extern int peer_default_originate_unset (struct peer
*, afi_t
, safi_t
);
1262 extern int peer_port_set (struct peer
*, u_int16_t
);
1263 extern int peer_port_unset (struct peer
*);
1265 extern void peer_weight_set (struct peer
*, u_int16_t
);
1266 extern void peer_weight_unset (struct peer
*);
1268 extern int peer_timers_set (struct peer
*, u_int32_t
, u_int32_t
);
1269 extern int peer_timers_unset (struct peer
*);
1271 extern int peer_timers_connect_set (struct peer
*, u_int32_t
);
1272 extern int peer_timers_connect_unset (struct peer
*);
1274 extern int peer_advertise_interval_set (struct peer
*, u_int32_t
);
1275 extern int peer_advertise_interval_unset (struct peer
*);
1277 extern void peer_interface_set (struct peer
*, const char *);
1278 extern void peer_interface_unset (struct peer
*);
1280 extern int peer_distribute_set (struct peer
*, afi_t
, safi_t
, int, const char *);
1281 extern int peer_distribute_unset (struct peer
*, afi_t
, safi_t
, int);
1283 extern int peer_allowas_in_set (struct peer
*, afi_t
, safi_t
, int);
1284 extern int peer_allowas_in_unset (struct peer
*, afi_t
, safi_t
);
1286 extern int peer_local_as_set (struct peer
*, as_t
, int, int);
1287 extern int peer_local_as_unset (struct peer
*);
1289 extern int peer_prefix_list_set (struct peer
*, afi_t
, safi_t
, int, const char *);
1290 extern int peer_prefix_list_unset (struct peer
*, afi_t
, safi_t
, int);
1292 extern int peer_aslist_set (struct peer
*, afi_t
, safi_t
, int, const char *);
1293 extern int peer_aslist_unset (struct peer
*,afi_t
, safi_t
, int);
1295 extern int peer_route_map_set (struct peer
*, afi_t
, safi_t
, int, const char *);
1296 extern int peer_route_map_unset (struct peer
*, afi_t
, safi_t
, int);
1298 extern int peer_unsuppress_map_set (struct peer
*, afi_t
, safi_t
, const char *);
1300 extern int peer_password_set (struct peer
*, const char *);
1301 extern int peer_password_unset (struct peer
*);
1303 extern int peer_unsuppress_map_unset (struct peer
*, afi_t
, safi_t
);
1305 extern int peer_maximum_prefix_set (struct peer
*, afi_t
, safi_t
, u_int32_t
, u_char
, int, u_int16_t
);
1306 extern int peer_maximum_prefix_unset (struct peer
*, afi_t
, safi_t
);
1308 extern int peer_clear (struct peer
*, struct listnode
**);
1309 extern int peer_clear_soft (struct peer
*, afi_t
, safi_t
, enum bgp_clear_type
);
1311 extern int peer_ttl_security_hops_set (struct peer
*, int);
1312 extern int peer_ttl_security_hops_unset (struct peer
*);
1314 extern int bgp_route_map_update_timer (struct thread
*thread
);
1315 extern void bgp_route_map_terminate(void);
1317 extern int peer_cmp (struct peer
*p1
, struct peer
*p2
);
1319 extern struct peer_af
* peer_af_create (struct peer
*, afi_t
, safi_t
);
1320 extern struct peer_af
* peer_af_find (struct peer
*, afi_t
, safi_t
);
1321 extern int peer_af_delete (struct peer
*, afi_t
, safi_t
);
1323 extern void bgp_close(void);
1326 afindex (afi_t afi
, safi_t safi
)
1334 return BGP_AF_IPV4_UNICAST
;
1336 case SAFI_MULTICAST
:
1337 return BGP_AF_IPV4_MULTICAST
;
1340 return BGP_AF_IPV4_VPN
;
1351 return BGP_AF_IPV6_UNICAST
;
1353 case SAFI_MULTICAST
:
1354 return BGP_AF_IPV6_MULTICAST
;
1367 /* If the peer is not a peer-group but is bound to a peer-group return 1 */
1369 peer_group_active (struct peer
*peer
)
1371 if (!CHECK_FLAG (peer
->sflags
, PEER_STATUS_GROUP
) && peer
->group
)
1376 /* If peer is negotiated at least one address family return 1. */
1378 peer_afi_active_nego (const struct peer
*peer
, afi_t afi
)
1380 if (peer
->afc_nego
[afi
][SAFI_UNICAST
]
1381 || peer
->afc_nego
[afi
][SAFI_MULTICAST
]
1382 || peer
->afc_nego
[afi
][SAFI_MPLS_VPN
])
1387 /* If at least one address family activated for group, return 1. */
1389 peer_group_af_configured (struct peer_group
*group
)
1391 struct peer
*peer
= group
->conf
;
1393 if (peer
->afc
[AFI_IP
][SAFI_UNICAST
]
1394 || peer
->afc
[AFI_IP
][SAFI_MULTICAST
]
1395 || peer
->afc
[AFI_IP
][SAFI_MPLS_VPN
]
1396 || peer
->afc
[AFI_IP6
][SAFI_UNICAST
]
1397 || peer
->afc
[AFI_IP6
][SAFI_MULTICAST
])
1402 static inline char *
1403 timestamp_string (time_t ts
)
1405 #ifdef HAVE_CLOCK_MONOTONIC
1407 tbuf
= time(NULL
) - (bgp_clock() - ts
);
1408 return ctime(&tbuf
);
1411 #endif /* HAVE_CLOCK_MONOTONIC */
1415 peer_established (struct peer
*peer
)
1417 if (peer
->status
== Established
)
1423 peer_dynamic_neighbor (struct peer
*peer
)
1425 return (CHECK_FLAG(peer
->flags
, PEER_FLAG_DYNAMIC_NEIGHBOR
)) ? 1 : 0;
1429 * Currently supporting RFC 5549 for AFI_IP/SAFI_UNICAST only.
1431 * Note: When other RFC-5549 applicable SAFIs to be supported, that should
1432 * come as an argument to this routine.
1435 peer_cap_enhe (struct peer
*peer
)
1437 return (CHECK_FLAG(peer
->af_cap
[AFI_IP
][SAFI_UNICAST
], PEER_CAP_ENHE_AF_NEGO
));
1440 /* Lookup VRF for BGP instance based on its type. */
1441 static inline struct vrf
*
1442 bgp_vrf_lookup_by_instance_type (struct bgp
*bgp
)
1446 if (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)
1447 vrf
= vrf_lookup (VRF_DEFAULT
);
1448 else if (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
)
1449 vrf
= vrf_lookup_by_name (bgp
->name
);
1456 /* Link BGP instance to VRF. */
1458 bgp_vrf_link (struct bgp
*bgp
, struct vrf
*vrf
)
1460 bgp
->vrf_id
= vrf
->vrf_id
;
1461 if (vrf
->info
!= (void *)bgp
)
1464 vrf
->info
= (void *)bgp
;
1468 /* Unlink BGP instance from VRF. */
1470 bgp_vrf_unlink (struct bgp
*bgp
, struct vrf
*vrf
)
1472 if (vrf
->info
== (void *)bgp
)
1477 bgp
->vrf_id
= VRF_DEFAULT
;
1480 #endif /* _QUAGGA_BGPD_H */