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 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_BGPD_H
22 #define _QUAGGA_BGPD_H
28 #include "frr_pthread.h"
34 /* For union sockunion. */
36 #include "sockunion.h"
40 #include "bgp_memory.h"
43 #include "bgp_labelpool.h"
44 #include "bgp_addpath_types.h"
46 #define BGP_MAX_HOSTNAME 64 /* Linux max, is larger than most other sys */
47 #define BGP_PEER_MAX_HASH_SIZE 16384
49 /* Default interval for IPv6 RAs when triggered by BGP unnumbered neighbor. */
50 #define BGP_UNNUM_DEFAULT_RA_INTERVAL 10
52 struct update_subgroup
;
54 struct bgp_pbr_config
;
57 * Allow the neighbor XXXX remote-as to take internal or external
58 * AS_SPECIFIED is zero to auto-inherit original non-feature/enhancement
62 enum { AS_UNSPECIFIED
= 0,
68 /* Typedef BGP specific types. */
69 typedef uint32_t as_t
;
70 typedef uint16_t as16_t
; /* we may still encounter 16 Bit asnums */
71 typedef uint16_t bgp_size_t
;
75 __typeof__(a) _a = (a); \
76 __typeof__(b) _b = (b); \
82 BGP_AF_IPV4_UNICAST
= BGP_AF_START
,
83 BGP_AF_IPV4_MULTICAST
,
86 BGP_AF_IPV6_MULTICAST
,
91 BGP_AF_IPV4_LBL_UNICAST
,
92 BGP_AF_IPV6_LBL_UNICAST
,
98 #define AF_FOREACH(af) for ((af) = BGP_AF_START; (af) < BGP_AF_MAX; (af)++)
100 #define FOREACH_AFI_SAFI(afi, safi) \
101 for (afi = AFI_IP; afi < AFI_MAX; afi++) \
102 for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++)
104 #define FOREACH_SAFI(safi) \
105 for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++)
107 extern struct frr_pthread
*bgp_pth_io
;
108 extern struct frr_pthread
*bgp_pth_ka
;
110 /* BGP master for system wide configurations and variables. */
112 /* BGP instance list. */
115 /* BGP thread master. */
116 struct thread_master
*master
;
119 struct work_queue
*process_main_queue
;
121 /* Listening sockets */
122 struct list
*listen_sockets
;
124 /* BGP port number. */
127 /* Listener address */
131 struct hash
*self_mac_hash
;
133 /* BGP start time. */
136 /* Various BGP global configuration. */
138 #define BGP_OPT_NO_FIB (1 << 0)
139 #define BGP_OPT_NO_LISTEN (1 << 1)
140 #define BGP_OPT_NO_ZEBRA (1 << 2)
142 uint64_t updgrp_idspace
;
143 uint64_t subgrp_idspace
;
145 /* timer to dampen route map changes */
146 struct thread
*t_rmap_update
; /* Handle route map updates */
147 uint32_t rmap_update_timer
; /* Route map update timer */
148 #define RMAP_DEFAULT_UPDATE_TIMER 5 /* disabled by default */
150 /* Id space for automatic RD derivation for an EVI/VRF */
151 bitfield_t rd_idspace
;
153 /* dynamic mpls label allocation pool */
154 struct labelpool labelpool
;
156 /* BGP-EVPN VRF ID. Defaults to default VRF (if any) */
157 struct bgp
* bgp_evpn
;
159 bool terminating
; /* global flag that sigint terminate seen */
162 DECLARE_QOBJ_TYPE(bgp_master
)
164 /* BGP route-map structure. */
167 struct route_map
*map
;
171 unsigned short instance
;
173 /* BGP redistribute metric configuration. */
174 uint8_t redist_metric_flag
;
175 uint32_t redist_metric
;
177 /* BGP redistribute route-map. */
178 struct bgp_rmap rmap
;
182 BGP_VPN_POLICY_DIR_FROMVPN
= 0,
183 BGP_VPN_POLICY_DIR_TOVPN
= 1,
184 BGP_VPN_POLICY_DIR_MAX
= 2
185 } vpn_policy_direction_t
;
188 struct bgp
*bgp
; /* parent */
190 struct ecommunity
*rtlist
[BGP_VPN_POLICY_DIR_MAX
];
191 struct ecommunity
*import_redirect_rtlist
;
192 char *rmap_name
[BGP_VPN_POLICY_DIR_MAX
];
193 struct route_map
*rmap
[BGP_VPN_POLICY_DIR_MAX
];
195 /* should be mpls_label_t? */
196 uint32_t tovpn_label
; /* may be MPLS_LABEL_NONE */
197 uint32_t tovpn_zebra_vrf_label_last_sent
;
198 struct prefix_rd tovpn_rd
;
199 struct prefix tovpn_nexthop
; /* unset => set to 0 */
201 #define BGP_VPN_POLICY_TOVPN_LABEL_AUTO (1 << 0)
202 #define BGP_VPN_POLICY_TOVPN_RD_SET (1 << 1)
203 #define BGP_VPN_POLICY_TOVPN_NEXTHOP_SET (1 << 2)
206 * If we are importing another vrf into us keep a list of
207 * vrf names that are being imported into us.
209 struct list
*import_vrf
;
212 * if we are being exported to another vrf keep a list of
213 * vrf names that we are being exported to.
215 struct list
*export_vrf
;
219 * Type of 'struct bgp'.
220 * - Default: The default instance
221 * - VRF: A specific (non-default) VRF
222 * - View: An instance used for route exchange
223 * The "default" instance is treated separately to simplify the code. Note
224 * that if deployed in a Multi-VRF environment, it may not exist.
226 enum bgp_instance_type
{
227 BGP_INSTANCE_TYPE_DEFAULT
,
228 BGP_INSTANCE_TYPE_VRF
,
229 BGP_INSTANCE_TYPE_VIEW
232 /* BGP instance structure. */
234 /* AS number of this BGP instance. */
237 /* Name of this BGP instance. */
239 char *name_pretty
; /* printable "VRF|VIEW name|default" */
241 /* Type of instance and VRF id. */
242 enum bgp_instance_type inst_type
;
245 /* Reference count to allow peer_delete to finish after bgp_delete */
249 struct peer
*peer_self
;
253 struct hash
*peerhash
;
255 /* BGP peer group. */
258 /* The maximum number of BGP dynamic neighbors that can be created */
259 int dynamic_neighbors_limit
;
261 /* The current number of BGP dynamic neighbors */
262 int dynamic_neighbors_count
;
264 struct hash
*update_groups
[BGP_AF_MAX
];
267 * Global statistics for update groups.
270 uint32_t join_events
;
271 uint32_t prune_events
;
272 uint32_t merge_events
;
273 uint32_t split_events
;
274 uint32_t updgrp_switch_events
;
275 uint32_t peer_refreshes_combined
;
277 uint32_t merge_checks_triggered
;
279 uint32_t updgrps_created
;
280 uint32_t updgrps_deleted
;
281 uint32_t subgrps_created
;
282 uint32_t subgrps_deleted
;
283 } update_group_stats
;
285 /* BGP configuration. */
287 #define BGP_CONFIG_CLUSTER_ID (1 << 0)
288 #define BGP_CONFIG_CONFEDERATION (1 << 1)
290 /* BGP router identifier. */
291 struct in_addr router_id
;
292 struct in_addr router_id_static
;
293 struct in_addr router_id_zebra
;
295 /* BGP route reflector cluster ID. */
296 struct in_addr cluster_id
;
298 /* BGP confederation information. */
301 int confed_peers_cnt
;
304 *t_startup
; /* start-up timer on only once at the beginning */
306 uint32_t v_maxmed_onstartup
; /* Duration of max-med on start-up */
307 #define BGP_MAXMED_ONSTARTUP_UNCONFIGURED 0 /* 0 means off, its the default */
308 uint32_t maxmed_onstartup_value
; /* Max-med value when active on
311 *t_maxmed_onstartup
; /* non-null when max-med onstartup is on */
312 uint8_t maxmed_onstartup_over
; /* Flag to make it effective only once */
314 uint8_t v_maxmed_admin
; /* 1/0 if max-med administrative is on/off */
315 #define BGP_MAXMED_ADMIN_UNCONFIGURED 0 /* Off by default */
316 uint32_t maxmed_admin_value
; /* Max-med value when administrative in on
318 #define BGP_MAXMED_VALUE_DEFAULT 4294967294 /* Maximum by default */
320 uint8_t maxmed_active
; /* 1/0 if max-med is active or not */
321 uint32_t maxmed_value
; /* Max-med value when its active */
323 /* BGP update delay on startup */
324 struct thread
*t_update_delay
;
325 struct thread
*t_establish_wait
;
326 uint8_t update_delay_over
;
327 uint8_t main_zebra_update_hold
;
328 uint8_t main_peers_update_hold
;
329 uint16_t v_update_delay
;
330 uint16_t v_establish_wait
;
331 char update_delay_begin_time
[64];
332 char update_delay_end_time
[64];
333 char update_delay_zebra_resume_time
[64];
334 char update_delay_peers_resume_time
[64];
335 uint32_t established
;
336 uint32_t restarted_peers
;
337 uint32_t implicit_eors
;
338 uint32_t explicit_eors
;
339 #define BGP_UPDATE_DELAY_DEF 0
340 #define BGP_UPDATE_DELAY_MIN 0
341 #define BGP_UPDATE_DELAY_MAX 3600
345 #define BGP_FLAG_ALWAYS_COMPARE_MED (1 << 0)
346 #define BGP_FLAG_DETERMINISTIC_MED (1 << 1)
347 #define BGP_FLAG_MED_MISSING_AS_WORST (1 << 2)
348 #define BGP_FLAG_MED_CONFED (1 << 3)
349 #define BGP_FLAG_NO_DEFAULT_IPV4 (1 << 4)
350 #define BGP_FLAG_NO_CLIENT_TO_CLIENT (1 << 5)
351 #define BGP_FLAG_COMPARE_ROUTER_ID (1 << 7)
352 #define BGP_FLAG_ASPATH_IGNORE (1 << 8)
353 #define BGP_FLAG_IMPORT_CHECK (1 << 9)
354 #define BGP_FLAG_NO_FAST_EXT_FAILOVER (1 << 10)
355 #define BGP_FLAG_LOG_NEIGHBOR_CHANGES (1 << 11)
356 #define BGP_FLAG_GRACEFUL_RESTART (1 << 12)
357 #define BGP_FLAG_ASPATH_CONFED (1 << 13)
358 #define BGP_FLAG_ASPATH_MULTIPATH_RELAX (1 << 14)
359 #define BGP_FLAG_RR_ALLOW_OUTBOUND_POLICY (1 << 15)
360 #define BGP_FLAG_DISABLE_NH_CONNECTED_CHK (1 << 16)
361 #define BGP_FLAG_MULTIPATH_RELAX_AS_SET (1 << 17)
362 #define BGP_FLAG_FORCE_STATIC_PROCESS (1 << 18)
363 #define BGP_FLAG_SHOW_HOSTNAME (1 << 19)
364 #define BGP_FLAG_GR_PRESERVE_FWD (1 << 20)
365 #define BGP_FLAG_GRACEFUL_SHUTDOWN (1 << 21)
366 #define BGP_FLAG_DELETE_IN_PROGRESS (1 << 22)
368 /* BGP Per AF flags */
369 uint16_t af_flags
[AFI_MAX
][SAFI_MAX
];
370 #define BGP_CONFIG_DAMPENING (1 << 0)
371 /* l2vpn evpn flags - 1 << 0 is used for DAMPENNG */
372 #define BGP_L2VPN_EVPN_ADVERTISE_IPV4_UNICAST (1 << 1)
373 #define BGP_L2VPN_EVPN_ADVERTISE_IPV6_UNICAST (1 << 2)
374 #define BGP_L2VPN_EVPN_DEFAULT_ORIGINATE_IPV4 (1 << 3)
375 #define BGP_L2VPN_EVPN_DEFAULT_ORIGINATE_IPV6 (1 << 4)
376 /* import/export between address families */
377 #define BGP_CONFIG_VRF_TO_MPLSVPN_EXPORT (1 << 5)
378 #define BGP_CONFIG_MPLSVPN_TO_VRF_IMPORT (1 << 6)
379 /* vrf-route leaking flags */
380 #define BGP_CONFIG_VRF_TO_VRF_IMPORT (1 << 7)
381 #define BGP_CONFIG_VRF_TO_VRF_EXPORT (1 << 8)
383 /* BGP per AF peer count */
384 uint32_t af_peer_count
[AFI_MAX
][SAFI_MAX
];
386 /* Route table for next-hop lookup cache. */
387 struct bgp_table
*nexthop_cache_table
[AFI_MAX
];
389 /* Route table for import-check */
390 struct bgp_table
*import_check_table
[AFI_MAX
];
392 struct bgp_table
*connected_table
[AFI_MAX
];
394 struct hash
*address_hash
;
396 /* DB for all local tunnel-ips - used mainly for martian checks
397 Currently it only has all VxLan tunnel IPs*/
398 struct hash
*tip_hash
;
400 /* Static route configuration. */
401 struct bgp_table
*route
[AFI_MAX
][SAFI_MAX
];
403 /* Aggregate address configuration. */
404 struct bgp_table
*aggregate
[AFI_MAX
][SAFI_MAX
];
406 /* BGP routing information base. */
407 struct bgp_table
*rib
[AFI_MAX
][SAFI_MAX
];
409 /* BGP table route-map. */
410 struct bgp_rmap table_map
[AFI_MAX
][SAFI_MAX
];
412 /* BGP redistribute configuration. */
413 struct list
*redist
[AFI_MAX
][ZEBRA_ROUTE_MAX
];
415 /* Allocate MPLS labels */
416 uint8_t allocate_mpls_labels
[AFI_MAX
][SAFI_MAX
];
418 /* Allocate hash entries to store policy routing information
419 * The hash are used to host pbr rules somewhere.
420 * Actually, pbr will only be used by flowspec
421 * those hash elements will have relationship together as
422 * illustrated in below diagram:
424 * pbr_action a <----- pbr_match i <--- pbr_match_entry 1..n
425 * <----- pbr_match j <--- pbr_match_entry 1..m
428 * - here in BGP structure, the list of match and actions will
429 * stand for the list of ipset sets, and table_ids in the kernel
430 * - the arrow above between pbr_match and pbr_action indicate
431 * that a backpointer permits match to find the action
432 * - the arrow betwen match_entry and match is a hash list
433 * contained in match, that lists the whole set of entries
435 struct hash
*pbr_match_hash
;
436 struct hash
*pbr_rule_hash
;
437 struct hash
*pbr_action_hash
;
439 /* timer to re-evaluate neighbor default-originate route-maps */
440 struct thread
*t_rmap_def_originate_eval
;
441 #define RMAP_DEFAULT_ORIGINATE_EVAL_TIMER 5
443 /* BGP distance configuration. */
444 uint8_t distance_ebgp
[AFI_MAX
][SAFI_MAX
];
445 uint8_t distance_ibgp
[AFI_MAX
][SAFI_MAX
];
446 uint8_t distance_local
[AFI_MAX
][SAFI_MAX
];
448 /* BGP default local-preference. */
449 uint32_t default_local_pref
;
451 /* BGP default subgroup pkt queue max */
452 uint32_t default_subgroup_pkt_queue_max
;
454 /* BGP default timer. */
455 uint32_t default_holdtime
;
456 uint32_t default_keepalive
;
458 /* BGP graceful restart */
459 uint32_t restart_time
;
460 uint32_t stalepath_time
;
462 /* Maximum-paths configuration */
463 struct bgp_maxpaths_cfg
{
464 uint16_t maxpaths_ebgp
;
465 uint16_t maxpaths_ibgp
;
467 #define BGP_FLAG_IBGP_MULTIPATH_SAME_CLUSTERLEN (1 << 0)
468 } maxpaths
[AFI_MAX
][SAFI_MAX
];
470 _Atomic
uint32_t wpkt_quanta
; // max # packets to write per i/o cycle
471 _Atomic
uint32_t rpkt_quanta
; // max # packets to read per i/o cycle
473 /* Automatic coalesce adjust on/off */
474 bool heuristic_coalesce
;
475 /* Actual coalesce time */
476 uint32_t coalesce_time
;
478 /* Auto-shutdown new peers */
481 struct bgp_addpath_bgp_data tx_addpath
;
484 struct rfapi_cfg
*rfapi_cfg
;
488 /* EVPN related information */
491 struct hash
*vnihash
;
493 /* EVPN enable - advertise gateway macip routes */
494 int advertise_gw_macip
;
496 /* EVPN enable - advertise local VNIs and their MACs etc. */
497 int advertise_all_vni
;
499 /* RFC 8212 - prevent route leaks. */
500 int ebgp_requires_policy
;
501 #define DEFAULT_EBGP_POLICY_DISABLED 0
502 #define DEFAULT_EBGP_POLICY_ENABLED 1
504 struct bgp_evpn_info
*evpn_info
;
506 /* EVPN - use RFC 8365 to auto-derive RT */
507 int advertise_autort_rfc8365
;
510 * Flooding mechanism for BUM packets for VxLAN-EVPN.
512 enum vxlan_flood_control vxlan_flood_ctrl
;
514 /* Hash table of Import RTs to EVIs */
515 struct hash
*import_rt_hash
;
517 /* Hash table of VRF import RTs to VRFs */
518 struct hash
*vrf_import_rt_hash
;
520 /* L3-VNI corresponding to this vrf */
523 /* router-mac to be used in mac-ip routes for this vrf */
526 /* originator ip - to be used as NH for type-5 routes */
527 struct in_addr originator_ip
;
529 /* SVI associated with the L3-VNI corresponding to this vrf */
530 ifindex_t l3vni_svi_ifindex
;
534 #define BGP_VRF_AUTO (1 << 0)
535 #define BGP_VRF_IMPORT_RT_CFGD (1 << 1)
536 #define BGP_VRF_EXPORT_RT_CFGD (1 << 2)
537 #define BGP_VRF_RD_CFGD (1 << 3)
538 #define BGP_VRF_L3VNI_PREFIX_ROUTES_ONLY (1 << 4)
541 /* unique ID for auto derivation of RD for this vrf */
544 /* Automatically derived RD for this VRF */
545 struct prefix_rd vrf_prd_auto
;
547 /* RD for this VRF */
548 struct prefix_rd vrf_prd
;
550 /* import rt list for the vrf instance */
551 struct list
*vrf_import_rtl
;
553 /* export rt list for the vrf instance */
554 struct list
*vrf_export_rtl
;
556 /* list of corresponding l2vnis (struct bgpevpn) */
559 /* route map for advertise ipv4/ipv6 unicast (type-5 routes) */
560 struct bgp_rmap adv_cmd_rmap
[AFI_MAX
][SAFI_MAX
];
562 struct vpn_policy vpn_policy
[AFI_MAX
];
564 struct bgp_pbr_config
*bgp_pbr_cfg
;
566 /* local esi hash table */
567 struct hash
*esihash
;
569 /* Count of peers in established state */
570 uint32_t established_peers
;
574 DECLARE_QOBJ_TYPE(bgp
)
576 DECLARE_HOOK(bgp_inst_delete
, (struct bgp
*bgp
), (bgp
))
577 DECLARE_HOOK(bgp_inst_config_write
,
578 (struct bgp
*bgp
, struct vty
*vty
),
581 #define BGP_ROUTE_ADV_HOLD(bgp) (bgp->main_peers_update_hold)
583 #define IS_BGP_INST_KNOWN_TO_ZEBRA(bgp) \
584 (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT \
585 || (bgp->inst_type == BGP_INSTANCE_TYPE_VRF \
586 && bgp->vrf_id != VRF_UNKNOWN))
588 /* BGP peer-group support. */
590 /* Name of the peer-group. */
593 /* Pointer to BGP. */
596 /* Peer-group client list. */
599 /** Dynamic neighbor listening ranges */
600 struct list
*listen_range
[AFI_MAX
];
602 /* Peer-group config */
606 /* BGP Notify message format. */
615 /* Next hop self address. */
617 struct interface
*ifp
;
619 struct in6_addr v6_global
;
620 struct in6_addr v6_local
;
623 /* BGP addpath values */
624 #define BGP_ADDPATH_RX 1
625 #define BGP_ADDPATH_TX 2
626 #define BGP_ADDPATH_ID_LEN 4
628 #define BGP_ADDPATH_TX_ID_FOR_DEFAULT_ORIGINATE 1
630 /* Route map direction */
637 /* BGP filter structure. */
639 /* Distribute-list. */
642 struct access_list
*alist
;
648 struct prefix_list
*plist
;
654 struct as_list
*aslist
;
655 } aslist
[FILTER_MAX
];
660 struct route_map
*map
;
663 /* Unsuppress-map. */
666 struct route_map
*map
;
670 /* IBGP/EBGP identifier. We also have a CONFED peer, which is to say,
671 a peer who's AS is part of our Confederation. */
673 BGP_PEER_UNSPECIFIED
,
680 /* BGP message header and packet size. */
681 #define BGP_MARKER_SIZE 16
682 #define BGP_HEADER_SIZE 19
683 #define BGP_MAX_PACKET_SIZE 4096
684 #define BGP_MAX_PACKET_SIZE_OVERFLOW 1024
687 * Trigger delay for bgp_announce_route().
689 #define BGP_ANNOUNCE_ROUTE_SHORT_DELAY_MS 100
690 #define BGP_ANNOUNCE_ROUTE_DELAY_MS 500
693 /* back pointer to the peer */
696 /* which subgroup the peer_af belongs to */
697 struct update_subgroup
*subgroup
;
699 /* for being part of an update subgroup's peer list */
700 LIST_ENTRY(peer_af
) subgrp_train
;
702 /* for being part of a packet's peer list */
703 LIST_ENTRY(peer_af
) pkt_train
;
705 struct bpacket
*next_pkt_to_send
;
708 * Trigger timer for bgp_announce_route().
710 struct thread
*t_announce_route
;
717 /* BGP neighbor structure. */
722 /* reference count, primarily to allow bgp_process'ing of route_node's
723 * to be done after a struct peer is deleted.
725 * named 'lock' for hysterical reasons within Quagga.
729 /* BGP peer group. */
730 struct peer_group
*group
;
731 uint64_t version
[AFI_MAX
][SAFI_MAX
];
733 /* BGP peer_af structures, per configured AF on this peer */
734 struct peer_af
*peer_af_array
[BGP_AF_MAX
];
736 /* Peer's remote AS number. */
740 /* Peer's local AS number. */
743 bgp_peer_sort_t sort
;
745 /* Peer's Change local AS number. */
746 as_t change_local_as
;
748 /* Remote router ID. */
749 struct in_addr remote_id
;
751 /* Local router ID. */
752 struct in_addr local_id
;
754 /* Packet receive and send buffer. */
755 pthread_mutex_t io_mtx
; // guards ibuf, obuf
756 struct stream_fifo
*ibuf
; // packets waiting to be processed
757 struct stream_fifo
*obuf
; // packets waiting to be written
759 struct ringbuf
*ibuf_work
; // WiP buffer used by bgp_read() only
760 struct stream
*obuf_work
; // WiP buffer used to construct packets
762 struct stream
*curr
; // the current packet being parsed
764 /* We use a separate stream to encode MP_REACH_NLRI for efficient
765 * NLRI packing. peer->obuf_work stores all the other attributes. The
766 * actual packet is then constructed by concatenating the two.
768 struct stream
*scratch
;
770 /* the doppelganger peer structure, due to dual TCP conn setup */
771 struct peer
*doppelganger
;
773 /* Status of the peer. */
777 /* FSM events, stored for debug purposes.
778 * Note: uchar used for reduced memory usage.
780 unsigned char cur_event
;
781 unsigned char last_event
;
782 unsigned char last_major_event
;
784 /* Peer index, used for dumping TABLE_DUMP_V2 format */
785 uint16_t table_dump_index
;
787 /* Peer information */
788 int fd
; /* File descriptor */
789 int ttl
; /* TTL of TCP connection to the peer. */
790 int rtt
; /* Estimated round-trip-time from TCP_INFO */
791 int gtsm_hops
; /* minimum hopcount to peer */
792 char *desc
; /* Description of the peer. */
793 unsigned short port
; /* Destination port for peer */
794 char *host
; /* Printable address of the peer. */
795 union sockunion su
; /* Sockunion address of the peer. */
796 #define BGP_PEER_SU_UNSPEC(peer) (peer->su.sa.sa_family == AF_UNSPEC)
797 time_t uptime
; /* Last Up/Down time */
798 time_t readtime
; /* Last read time */
799 time_t resettime
; /* Last reset time */
801 char *conf_if
; /* neighbor interface config name. */
802 struct interface
*ifp
; /* corresponding interface */
803 char *ifname
; /* bind interface name. */
805 union sockunion
*update_source
;
807 union sockunion
*su_local
; /* Sockunion of local address. */
808 union sockunion
*su_remote
; /* Sockunion of remote address. */
809 int shared_network
; /* Is this peer shared same network. */
810 struct bgp_nexthop nexthop
; /* Nexthop */
812 /* Peer address family configuration. */
813 uint8_t afc
[AFI_MAX
][SAFI_MAX
];
814 uint8_t afc_nego
[AFI_MAX
][SAFI_MAX
];
815 uint8_t afc_adv
[AFI_MAX
][SAFI_MAX
];
816 uint8_t afc_recv
[AFI_MAX
][SAFI_MAX
];
818 /* Capability flags (reset in bgp_stop) */
820 #define PEER_CAP_REFRESH_ADV (1 << 0) /* refresh advertised */
821 #define PEER_CAP_REFRESH_OLD_RCV (1 << 1) /* refresh old received */
822 #define PEER_CAP_REFRESH_NEW_RCV (1 << 2) /* refresh rfc received */
823 #define PEER_CAP_DYNAMIC_ADV (1 << 3) /* dynamic advertised */
824 #define PEER_CAP_DYNAMIC_RCV (1 << 4) /* dynamic received */
825 #define PEER_CAP_RESTART_ADV (1 << 5) /* restart advertised */
826 #define PEER_CAP_RESTART_RCV (1 << 6) /* restart received */
827 #define PEER_CAP_AS4_ADV (1 << 7) /* as4 advertised */
828 #define PEER_CAP_AS4_RCV (1 << 8) /* as4 received */
829 #define PEER_CAP_RESTART_BIT_ADV (1 << 9) /* sent restart state */
830 #define PEER_CAP_RESTART_BIT_RCV (1 << 10) /* peer restart state */
831 #define PEER_CAP_ADDPATH_ADV (1 << 11) /* addpath advertised */
832 #define PEER_CAP_ADDPATH_RCV (1 << 12) /* addpath received */
833 #define PEER_CAP_ENHE_ADV (1 << 13) /* Extended nexthop advertised */
834 #define PEER_CAP_ENHE_RCV (1 << 14) /* Extended nexthop received */
835 #define PEER_CAP_HOSTNAME_ADV (1 << 15) /* hostname advertised */
836 #define PEER_CAP_HOSTNAME_RCV (1 << 16) /* hostname received */
838 /* Capability flags (reset in bgp_stop) */
839 uint32_t af_cap
[AFI_MAX
][SAFI_MAX
];
840 #define PEER_CAP_ORF_PREFIX_SM_ADV (1 << 0) /* send-mode advertised */
841 #define PEER_CAP_ORF_PREFIX_RM_ADV (1 << 1) /* receive-mode advertised */
842 #define PEER_CAP_ORF_PREFIX_SM_RCV (1 << 2) /* send-mode received */
843 #define PEER_CAP_ORF_PREFIX_RM_RCV (1 << 3) /* receive-mode received */
844 #define PEER_CAP_ORF_PREFIX_SM_OLD_RCV (1 << 4) /* send-mode received */
845 #define PEER_CAP_ORF_PREFIX_RM_OLD_RCV (1 << 5) /* receive-mode received */
846 #define PEER_CAP_RESTART_AF_RCV (1 << 6) /* graceful restart afi/safi received */
847 #define PEER_CAP_RESTART_AF_PRESERVE_RCV (1 << 7) /* graceful restart afi/safi F-bit received */
848 #define PEER_CAP_ADDPATH_AF_TX_ADV (1 << 8) /* addpath tx advertised */
849 #define PEER_CAP_ADDPATH_AF_TX_RCV (1 << 9) /* addpath tx received */
850 #define PEER_CAP_ADDPATH_AF_RX_ADV (1 << 10) /* addpath rx advertised */
851 #define PEER_CAP_ADDPATH_AF_RX_RCV (1 << 11) /* addpath rx received */
852 #define PEER_CAP_ENHE_AF_ADV (1 << 12) /* Extended nexthopi afi/safi advertised */
853 #define PEER_CAP_ENHE_AF_RCV (1 << 13) /* Extended nexthop afi/safi received */
854 #define PEER_CAP_ENHE_AF_NEGO (1 << 14) /* Extended nexthop afi/safi negotiated */
856 /* Global configuration flags. */
858 * Parallel array to flags that indicates whether each flag originates
859 * from a peer-group or if it is config that is specific to this
860 * individual peer. If a flag is set independent of the peer-group, the
861 * same bit should be set here. If this peer is a peer-group, this
862 * memory region should be all zeros.
864 * The assumption is that the default state for all flags is unset,
865 * so if a flag is unset, the corresponding override flag is unset too.
866 * However if a flag is set, the corresponding override flag is set.
868 uint32_t flags_override
;
870 * Parallel array to flags that indicates whether the default behavior
871 * of *flags_override* should be inverted. If a flag is unset and the
872 * corresponding invert flag is set, the corresponding override flag
873 * would be set. However if a flag is set and the corresponding invert
874 * flag is unset, the corresponding override flag would be unset.
876 * This can be used for attributes like *send-community*, which are
877 * implicitely enabled and have to be disabled explicitely, compared to
878 * 'normal' attributes like *next-hop-self* which are implicitely set.
880 * All operations dealing with flags should apply the following boolean
881 * logic to keep the internal flag system in a sane state:
883 * value=0 invert=0 Inherit flag if member, otherwise unset flag
884 * value=0 invert=1 Unset flag unconditionally
885 * value=1 invert=0 Set flag unconditionally
886 * value=1 invert=1 Inherit flag if member, otherwise set flag
888 * Contrary to the implementation of *flags_override*, the flag
889 * inversion state can be set either on the peer OR the peer *and* the
890 * peer-group. This was done on purpose, as the inversion state of a
891 * flag can be determined on either the peer or the peer-group.
893 * Example: Enabling the cisco configuration mode inverts all flags
894 * related to *send-community* unconditionally for both peer-groups and
897 * This behavior is different for interface peers though, which enable
898 * the *extended-nexthop* flag by default, which regular peers do not.
899 * As the peer-group can contain both regular and interface peers, the
900 * flag inversion state must be set on the peer only.
902 * When a peer inherits the configuration from a peer-group and the
903 * inversion state of the flag differs between peer and peer-group, the
904 * newly set value must equal to the inverted state of the peer-group.
906 uint32_t flags_invert
;
908 * Effective array for storing the peer/peer-group flags. In case of a
909 * peer-group, the peer-specific overrides (see flags_override and
910 * flags_invert) must be respected.
913 #define PEER_FLAG_PASSIVE (1 << 0) /* passive mode */
914 #define PEER_FLAG_SHUTDOWN (1 << 1) /* shutdown */
915 #define PEER_FLAG_DONT_CAPABILITY (1 << 2) /* dont-capability */
916 #define PEER_FLAG_OVERRIDE_CAPABILITY (1 << 3) /* override-capability */
917 #define PEER_FLAG_STRICT_CAP_MATCH (1 << 4) /* strict-match */
918 #define PEER_FLAG_DYNAMIC_CAPABILITY (1 << 5) /* dynamic capability */
919 #define PEER_FLAG_DISABLE_CONNECTED_CHECK (1 << 6) /* disable-connected-check */
920 #define PEER_FLAG_LOCAL_AS_NO_PREPEND (1 << 7) /* local-as no-prepend */
921 #define PEER_FLAG_LOCAL_AS_REPLACE_AS (1 << 8) /* local-as no-prepend replace-as */
922 #define PEER_FLAG_DELETE (1 << 9) /* mark the peer for deleting */
923 #define PEER_FLAG_CONFIG_NODE (1 << 10) /* the node to update configs on */
924 #define PEER_FLAG_LONESOUL (1 << 11)
925 #define PEER_FLAG_DYNAMIC_NEIGHBOR (1 << 12) /* dynamic neighbor */
926 #define PEER_FLAG_CAPABILITY_ENHE (1 << 13) /* Extended next-hop (rfc 5549)*/
927 #define PEER_FLAG_IFPEER_V6ONLY (1 << 14) /* if-based peer is v6 only */
928 #define PEER_FLAG_IS_RFAPI_HD (1 << 15) /* attached to rfapi HD */
929 #define PEER_FLAG_ENFORCE_FIRST_AS (1 << 16) /* enforce-first-as */
930 #define PEER_FLAG_ROUTEADV (1 << 17) /* route advertise */
931 #define PEER_FLAG_TIMER (1 << 18) /* keepalive & holdtime */
932 #define PEER_FLAG_TIMER_CONNECT (1 << 19) /* connect timer */
933 #define PEER_FLAG_PASSWORD (1 << 20) /* password */
934 #define PEER_FLAG_LOCAL_AS (1 << 21) /* local-as */
935 #define PEER_FLAG_UPDATE_SOURCE (1 << 22) /* update-source */
937 /* outgoing message sent in CEASE_ADMIN_SHUTDOWN notify */
938 char *tx_shutdown_message
;
940 /* NSF mode (graceful restart) */
941 uint8_t nsf
[AFI_MAX
][SAFI_MAX
];
943 /* Peer Per AF flags */
945 * Please consult the comments for *flags_override*, *flags_invert* and
946 * *flags* to understand what these three arrays do. The address-family
947 * specific attributes are being treated the exact same way as global
950 uint32_t af_flags_override
[AFI_MAX
][SAFI_MAX
];
951 uint32_t af_flags_invert
[AFI_MAX
][SAFI_MAX
];
952 uint32_t af_flags
[AFI_MAX
][SAFI_MAX
];
953 #define PEER_FLAG_SEND_COMMUNITY (1 << 0) /* send-community */
954 #define PEER_FLAG_SEND_EXT_COMMUNITY (1 << 1) /* send-community ext. */
955 #define PEER_FLAG_NEXTHOP_SELF (1 << 2) /* next-hop-self */
956 #define PEER_FLAG_REFLECTOR_CLIENT (1 << 3) /* reflector-client */
957 #define PEER_FLAG_RSERVER_CLIENT (1 << 4) /* route-server-client */
958 #define PEER_FLAG_SOFT_RECONFIG (1 << 5) /* soft-reconfiguration */
959 #define PEER_FLAG_AS_PATH_UNCHANGED (1 << 6) /* transparent-as */
960 #define PEER_FLAG_NEXTHOP_UNCHANGED (1 << 7) /* transparent-next-hop */
961 #define PEER_FLAG_MED_UNCHANGED (1 << 8) /* transparent-next-hop */
962 #define PEER_FLAG_DEFAULT_ORIGINATE (1 << 9) /* default-originate */
963 #define PEER_FLAG_REMOVE_PRIVATE_AS (1 << 10) /* remove-private-as */
964 #define PEER_FLAG_ALLOWAS_IN (1 << 11) /* set allowas-in */
965 #define PEER_FLAG_ORF_PREFIX_SM (1 << 12) /* orf capability send-mode */
966 #define PEER_FLAG_ORF_PREFIX_RM (1 << 13) /* orf capability receive-mode */
967 #define PEER_FLAG_MAX_PREFIX (1 << 14) /* maximum prefix */
968 #define PEER_FLAG_MAX_PREFIX_WARNING (1 << 15) /* maximum prefix warning-only */
969 #define PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED (1 << 16) /* leave link-local nexthop unchanged */
970 #define PEER_FLAG_FORCE_NEXTHOP_SELF (1 << 17) /* next-hop-self force */
971 #define PEER_FLAG_REMOVE_PRIVATE_AS_ALL (1 << 18) /* remove-private-as all */
972 #define PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE (1 << 19) /* remove-private-as replace-as */
973 #define PEER_FLAG_AS_OVERRIDE (1 << 20) /* as-override */
974 #define PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE (1 << 21) /* remove-private-as all replace-as */
975 #define PEER_FLAG_WEIGHT (1 << 24) /* weight */
976 #define PEER_FLAG_ALLOWAS_IN_ORIGIN (1 << 25) /* allowas-in origin */
977 #define PEER_FLAG_SEND_LARGE_COMMUNITY (1 << 26) /* Send large Communities */
979 enum bgp_addpath_strat addpath_type
[AFI_MAX
][SAFI_MAX
];
984 /* default-originate route-map. */
987 struct route_map
*map
;
988 } default_rmap
[AFI_MAX
][SAFI_MAX
];
990 /* Peer status flags. */
992 #define PEER_STATUS_ACCEPT_PEER (1 << 0) /* accept peer */
993 #define PEER_STATUS_PREFIX_OVERFLOW (1 << 1) /* prefix-overflow */
994 #define PEER_STATUS_CAPABILITY_OPEN (1 << 2) /* capability open send */
995 #define PEER_STATUS_HAVE_ACCEPT (1 << 3) /* accept peer's parent */
996 #define PEER_STATUS_GROUP (1 << 4) /* peer-group conf */
997 #define PEER_STATUS_NSF_MODE (1 << 5) /* NSF aware peer */
998 #define PEER_STATUS_NSF_WAIT (1 << 6) /* wait comeback peer */
1000 /* Peer status af flags (reset in bgp_stop) */
1001 uint16_t af_sflags
[AFI_MAX
][SAFI_MAX
];
1002 #define PEER_STATUS_ORF_PREFIX_SEND (1 << 0) /* prefix-list send peer */
1003 #define PEER_STATUS_ORF_WAIT_REFRESH (1 << 1) /* wait refresh received peer */
1004 #define PEER_STATUS_PREFIX_THRESHOLD (1 << 2) /* exceed prefix-threshold */
1005 #define PEER_STATUS_PREFIX_LIMIT (1 << 3) /* exceed prefix-limit */
1006 #define PEER_STATUS_EOR_SEND (1 << 4) /* end-of-rib send to peer */
1007 #define PEER_STATUS_EOR_RECEIVED (1 << 5) /* end-of-rib received from peer */
1009 /* Configured timer values. */
1010 _Atomic
uint32_t holdtime
;
1011 _Atomic
uint32_t keepalive
;
1012 _Atomic
uint32_t connect
;
1013 _Atomic
uint32_t routeadv
;
1016 _Atomic
uint32_t v_start
;
1017 _Atomic
uint32_t v_connect
;
1018 _Atomic
uint32_t v_holdtime
;
1019 _Atomic
uint32_t v_keepalive
;
1020 _Atomic
uint32_t v_routeadv
;
1021 _Atomic
uint32_t v_pmax_restart
;
1022 _Atomic
uint32_t v_gr_restart
;
1025 struct thread
*t_read
;
1026 struct thread
*t_write
;
1027 struct thread
*t_start
;
1028 struct thread
*t_connect_check_r
;
1029 struct thread
*t_connect_check_w
;
1030 struct thread
*t_connect
;
1031 struct thread
*t_holdtime
;
1032 struct thread
*t_routeadv
;
1033 struct thread
*t_pmax_restart
;
1034 struct thread
*t_gr_restart
;
1035 struct thread
*t_gr_stale
;
1036 struct thread
*t_generate_updgrp_packets
;
1037 struct thread
*t_process_packet
;
1040 _Atomic
uint32_t thread_flags
;
1041 #define PEER_THREAD_WRITES_ON (1 << 0)
1042 #define PEER_THREAD_READS_ON (1 << 1)
1043 #define PEER_THREAD_KEEPALIVES_ON (1 << 2)
1045 struct work_queue
*clear_node_queue
;
1047 #define PEER_TOTAL_RX(peer) \
1048 atomic_load_explicit(&peer->open_in, memory_order_relaxed) \
1049 + atomic_load_explicit(&peer->update_in, memory_order_relaxed) \
1050 + atomic_load_explicit(&peer->notify_in, memory_order_relaxed) \
1051 + atomic_load_explicit(&peer->refresh_in, \
1052 memory_order_relaxed) \
1053 + atomic_load_explicit(&peer->keepalive_in, \
1054 memory_order_relaxed) \
1055 + atomic_load_explicit(&peer->dynamic_cap_in, \
1056 memory_order_relaxed)
1058 #define PEER_TOTAL_TX(peer) \
1059 atomic_load_explicit(&peer->open_out, memory_order_relaxed) \
1060 + atomic_load_explicit(&peer->update_out, \
1061 memory_order_relaxed) \
1062 + atomic_load_explicit(&peer->notify_out, \
1063 memory_order_relaxed) \
1064 + atomic_load_explicit(&peer->refresh_out, \
1065 memory_order_relaxed) \
1066 + atomic_load_explicit(&peer->keepalive_out, \
1067 memory_order_relaxed) \
1068 + atomic_load_explicit(&peer->dynamic_cap_out, \
1069 memory_order_relaxed)
1071 /* Statistics field */
1072 _Atomic
uint32_t open_in
; /* Open message input count */
1073 _Atomic
uint32_t open_out
; /* Open message output count */
1074 _Atomic
uint32_t update_in
; /* Update message input count */
1075 _Atomic
uint32_t update_out
; /* Update message ouput count */
1076 _Atomic
time_t update_time
; /* Update message received time. */
1077 _Atomic
uint32_t keepalive_in
; /* Keepalive input count */
1078 _Atomic
uint32_t keepalive_out
; /* Keepalive output count */
1079 _Atomic
uint32_t notify_in
; /* Notify input count */
1080 _Atomic
uint32_t notify_out
; /* Notify output count */
1081 _Atomic
uint32_t refresh_in
; /* Route Refresh input count */
1082 _Atomic
uint32_t refresh_out
; /* Route Refresh output count */
1083 _Atomic
uint32_t dynamic_cap_in
; /* Dynamic Capability input count. */
1084 _Atomic
uint32_t dynamic_cap_out
; /* Dynamic Capability output count. */
1086 uint32_t stat_pfx_filter
;
1087 uint32_t stat_pfx_aspath_loop
;
1088 uint32_t stat_pfx_originator_loop
;
1089 uint32_t stat_pfx_cluster_loop
;
1090 uint32_t stat_pfx_nh_invalid
;
1091 uint32_t stat_pfx_dup_withdraw
;
1092 uint32_t stat_upd_7606
; /* RFC7606: treat-as-withdraw */
1094 /* BGP state count */
1095 uint32_t established
; /* Established */
1096 uint32_t dropped
; /* Dropped */
1098 /* Update delay related fields */
1099 uint8_t update_delay_over
; /* When this is set, BGP is no more waiting
1102 /* Syncronization list and time. */
1103 struct bgp_synchronize
*sync
[AFI_MAX
][SAFI_MAX
];
1105 /* timestamp when the last UPDATE msg was written */
1106 _Atomic
time_t last_write
;
1107 /* timestamp when the last msg was written */
1108 _Atomic
time_t last_update
;
1110 /* Send prefix count. */
1111 unsigned long scount
[AFI_MAX
][SAFI_MAX
];
1114 struct bgp_notify notify
;
1116 /* Filter structure. */
1117 struct bgp_filter filter
[AFI_MAX
][SAFI_MAX
];
1120 * Parallel array to filter that indicates whether each filter
1121 * originates from a peer-group or if it is config that is specific to
1122 * this individual peer. If a filter is set independent of the
1123 * peer-group the appropriate bit should be set here. If this peer is a
1124 * peer-group, this memory region should be all zeros. The assumption
1125 * is that the default state for all flags is unset. Due to filters
1126 * having a direction (e.g. in/out/...), this array has a third
1127 * dimension for storing the overrides independently per direction.
1130 * - if a filter for an individual peer is unset, the corresponding
1131 * override flag is unset and the peer is considered to be back in
1132 * sync with the peer-group.
1133 * - This does *not* contain the filter values, rather it contains
1134 * whether the filter in filter (struct bgp_filter) is peer-specific.
1136 uint8_t filter_override
[AFI_MAX
][SAFI_MAX
][(FILTER_MAX
> RMAP_MAX
)
1139 #define PEER_FT_DISTRIBUTE_LIST (1 << 0) /* distribute-list */
1140 #define PEER_FT_FILTER_LIST (1 << 1) /* filter-list */
1141 #define PEER_FT_PREFIX_LIST (1 << 2) /* prefix-list */
1142 #define PEER_FT_ROUTE_MAP (1 << 3) /* route-map */
1143 #define PEER_FT_UNSUPPRESS_MAP (1 << 4) /* unsuppress-map */
1145 /* ORF Prefix-list */
1146 struct prefix_list
*orf_plist
[AFI_MAX
][SAFI_MAX
];
1148 /* Text description of last attribute rcvd */
1149 char rcvd_attr_str
[BUFSIZ
];
1151 /* Track if we printed the attribute in debugs */
1152 int rcvd_attr_printed
;
1155 unsigned long pcount
[AFI_MAX
][SAFI_MAX
];
1157 /* Max prefix count. */
1158 unsigned long pmax
[AFI_MAX
][SAFI_MAX
];
1159 uint8_t pmax_threshold
[AFI_MAX
][SAFI_MAX
];
1160 uint16_t pmax_restart
[AFI_MAX
][SAFI_MAX
];
1161 #define MAXIMUM_PREFIX_THRESHOLD_DEFAULT 75
1164 char allowas_in
[AFI_MAX
][SAFI_MAX
];
1167 unsigned long weight
[AFI_MAX
][SAFI_MAX
];
1169 /* peer reset cause */
1171 #define PEER_DOWN_RID_CHANGE 1 /* bgp router-id command */
1172 #define PEER_DOWN_REMOTE_AS_CHANGE 2 /* neighbor remote-as command */
1173 #define PEER_DOWN_LOCAL_AS_CHANGE 3 /* neighbor local-as command */
1174 #define PEER_DOWN_CLID_CHANGE 4 /* bgp cluster-id command */
1175 #define PEER_DOWN_CONFED_ID_CHANGE 5 /* bgp confederation identifier command */
1176 #define PEER_DOWN_CONFED_PEER_CHANGE 6 /* bgp confederation peer command */
1177 #define PEER_DOWN_RR_CLIENT_CHANGE 7 /* neighbor route-reflector-client command */
1178 #define PEER_DOWN_RS_CLIENT_CHANGE 8 /* neighbor route-server-client command */
1179 #define PEER_DOWN_UPDATE_SOURCE_CHANGE 9 /* neighbor update-source command */
1180 #define PEER_DOWN_AF_ACTIVATE 10 /* neighbor activate command */
1181 #define PEER_DOWN_USER_SHUTDOWN 11 /* neighbor shutdown command */
1182 #define PEER_DOWN_USER_RESET 12 /* clear ip bgp command */
1183 #define PEER_DOWN_NOTIFY_RECEIVED 13 /* notification received */
1184 #define PEER_DOWN_NOTIFY_SEND 14 /* notification send */
1185 #define PEER_DOWN_CLOSE_SESSION 15 /* tcp session close */
1186 #define PEER_DOWN_NEIGHBOR_DELETE 16 /* neghbor delete */
1187 #define PEER_DOWN_RMAP_BIND 17 /* neghbor peer-group command */
1188 #define PEER_DOWN_RMAP_UNBIND 18 /* no neighbor peer-group command */
1189 #define PEER_DOWN_CAPABILITY_CHANGE 19 /* neighbor capability command */
1190 #define PEER_DOWN_PASSIVE_CHANGE 20 /* neighbor passive command */
1191 #define PEER_DOWN_MULTIHOP_CHANGE 21 /* neighbor multihop command */
1192 #define PEER_DOWN_NSF_CLOSE_SESSION 22 /* NSF tcp session close */
1193 #define PEER_DOWN_V6ONLY_CHANGE 23 /* if-based peering v6only toggled */
1194 #define PEER_DOWN_BFD_DOWN 24 /* BFD down */
1195 #define PEER_DOWN_IF_DOWN 25 /* Interface down */
1196 #define PEER_DOWN_NBR_ADDR_DEL 26 /* Peer address lost */
1197 #define PEER_DOWN_WAITING_NHT 27 /* Waiting for NHT to resolve */
1198 #define PEER_DOWN_NBR_ADDR 28 /* Waiting for peer IPv6 IP Addr */
1199 #define PEER_DOWN_VRF_UNINIT 29 /* Associated VRF is not init yet */
1200 size_t last_reset_cause_size
;
1201 uint8_t last_reset_cause
[BGP_MAX_PACKET_SIZE
];
1203 /* The kind of route-map Flags.*/
1205 #define PEER_RMAP_TYPE_IN (1 << 0) /* neighbor route-map in */
1206 #define PEER_RMAP_TYPE_OUT (1 << 1) /* neighbor route-map out */
1207 #define PEER_RMAP_TYPE_NETWORK (1 << 2) /* network route-map */
1208 #define PEER_RMAP_TYPE_REDISTRIBUTE (1 << 3) /* redistribute route-map */
1209 #define PEER_RMAP_TYPE_DEFAULT (1 << 4) /* default-originate route-map */
1210 #define PEER_RMAP_TYPE_NOSET (1 << 5) /* not allow to set commands */
1211 #define PEER_RMAP_TYPE_IMPORT (1 << 6) /* neighbor route-map import */
1212 #define PEER_RMAP_TYPE_EXPORT (1 << 7) /* neighbor route-map export */
1214 /* peer specific BFD information */
1215 struct bfd_info
*bfd_info
;
1217 /* hostname and domainname advertised by host */
1223 DECLARE_QOBJ_TYPE(peer
)
1225 /* Inherit peer attribute from peer-group. */
1226 #define PEER_ATTR_INHERIT(peer, group, attr) \
1227 ((peer)->attr = (group)->conf->attr)
1228 #define PEER_STR_ATTR_INHERIT(peer, group, attr, mt) \
1231 XFREE(mt, (peer)->attr); \
1232 if ((group)->conf->attr) \
1233 (peer)->attr = XSTRDUP(mt, (group)->conf->attr); \
1235 (peer)->attr = NULL; \
1237 #define PEER_SU_ATTR_INHERIT(peer, group, attr) \
1240 sockunion_free((peer)->attr); \
1241 if ((group)->conf->attr) \
1242 (peer)->attr = sockunion_dup((group)->conf->attr); \
1244 (peer)->attr = NULL; \
1247 /* Check if suppress start/restart of sessions to peer. */
1248 #define BGP_PEER_START_SUPPRESSED(P) \
1249 (CHECK_FLAG((P)->flags, PEER_FLAG_SHUTDOWN) \
1250 || CHECK_FLAG((P)->sflags, PEER_STATUS_PREFIX_OVERFLOW))
1252 #define PEER_PASSWORD_MINLEN (1)
1253 #define PEER_PASSWORD_MAXLEN (80)
1255 /* This structure's member directly points incoming packet data
1259 uint16_t afi
; /* iana_afi_t */
1262 uint8_t safi
; /* iana_safi_t */
1264 /* Pointer to NLRI byte stream. */
1267 /* Length of whole NLRI. */
1272 #define BGP_VERSION_4 4
1274 /* Default BGP port number. */
1275 #define BGP_PORT_DEFAULT 179
1277 /* BGP minimum message size. */
1278 #define BGP_MSG_OPEN_MIN_SIZE (BGP_HEADER_SIZE + 10)
1279 #define BGP_MSG_UPDATE_MIN_SIZE (BGP_HEADER_SIZE + 4)
1280 #define BGP_MSG_NOTIFY_MIN_SIZE (BGP_HEADER_SIZE + 2)
1281 #define BGP_MSG_KEEPALIVE_MIN_SIZE (BGP_HEADER_SIZE + 0)
1282 #define BGP_MSG_ROUTE_REFRESH_MIN_SIZE (BGP_HEADER_SIZE + 4)
1283 #define BGP_MSG_CAPABILITY_MIN_SIZE (BGP_HEADER_SIZE + 3)
1285 /* BGP message types. */
1286 #define BGP_MSG_OPEN 1
1287 #define BGP_MSG_UPDATE 2
1288 #define BGP_MSG_NOTIFY 3
1289 #define BGP_MSG_KEEPALIVE 4
1290 #define BGP_MSG_ROUTE_REFRESH_NEW 5
1291 #define BGP_MSG_CAPABILITY 6
1292 #define BGP_MSG_ROUTE_REFRESH_OLD 128
1294 /* BGP open optional parameter. */
1295 #define BGP_OPEN_OPT_AUTH 1
1296 #define BGP_OPEN_OPT_CAP 2
1298 /* BGP4 attribute type codes. */
1299 #define BGP_ATTR_ORIGIN 1
1300 #define BGP_ATTR_AS_PATH 2
1301 #define BGP_ATTR_NEXT_HOP 3
1302 #define BGP_ATTR_MULTI_EXIT_DISC 4
1303 #define BGP_ATTR_LOCAL_PREF 5
1304 #define BGP_ATTR_ATOMIC_AGGREGATE 6
1305 #define BGP_ATTR_AGGREGATOR 7
1306 #define BGP_ATTR_COMMUNITIES 8
1307 #define BGP_ATTR_ORIGINATOR_ID 9
1308 #define BGP_ATTR_CLUSTER_LIST 10
1309 #define BGP_ATTR_DPA 11
1310 #define BGP_ATTR_ADVERTISER 12
1311 #define BGP_ATTR_RCID_PATH 13
1312 #define BGP_ATTR_MP_REACH_NLRI 14
1313 #define BGP_ATTR_MP_UNREACH_NLRI 15
1314 #define BGP_ATTR_EXT_COMMUNITIES 16
1315 #define BGP_ATTR_AS4_PATH 17
1316 #define BGP_ATTR_AS4_AGGREGATOR 18
1317 #define BGP_ATTR_AS_PATHLIMIT 21
1318 #define BGP_ATTR_PMSI_TUNNEL 22
1319 #define BGP_ATTR_ENCAP 23
1320 #define BGP_ATTR_LARGE_COMMUNITIES 32
1321 #define BGP_ATTR_PREFIX_SID 40
1322 #if ENABLE_BGP_VNC_ATTR
1323 #define BGP_ATTR_VNC 255
1326 /* BGP update origin. */
1327 #define BGP_ORIGIN_IGP 0
1328 #define BGP_ORIGIN_EGP 1
1329 #define BGP_ORIGIN_INCOMPLETE 2
1331 /* BGP notify message codes. */
1332 #define BGP_NOTIFY_HEADER_ERR 1
1333 #define BGP_NOTIFY_OPEN_ERR 2
1334 #define BGP_NOTIFY_UPDATE_ERR 3
1335 #define BGP_NOTIFY_HOLD_ERR 4
1336 #define BGP_NOTIFY_FSM_ERR 5
1337 #define BGP_NOTIFY_CEASE 6
1338 #define BGP_NOTIFY_CAPABILITY_ERR 7
1340 #define BGP_NOTIFY_SUBCODE_UNSPECIFIC 0
1342 /* BGP_NOTIFY_HEADER_ERR sub codes. */
1343 #define BGP_NOTIFY_HEADER_NOT_SYNC 1
1344 #define BGP_NOTIFY_HEADER_BAD_MESLEN 2
1345 #define BGP_NOTIFY_HEADER_BAD_MESTYPE 3
1347 /* BGP_NOTIFY_OPEN_ERR sub codes. */
1348 #define BGP_NOTIFY_OPEN_MALFORMED_ATTR 0
1349 #define BGP_NOTIFY_OPEN_UNSUP_VERSION 1
1350 #define BGP_NOTIFY_OPEN_BAD_PEER_AS 2
1351 #define BGP_NOTIFY_OPEN_BAD_BGP_IDENT 3
1352 #define BGP_NOTIFY_OPEN_UNSUP_PARAM 4
1353 #define BGP_NOTIFY_OPEN_AUTH_FAILURE 5
1354 #define BGP_NOTIFY_OPEN_UNACEP_HOLDTIME 6
1355 #define BGP_NOTIFY_OPEN_UNSUP_CAPBL 7
1357 /* BGP_NOTIFY_UPDATE_ERR sub codes. */
1358 #define BGP_NOTIFY_UPDATE_MAL_ATTR 1
1359 #define BGP_NOTIFY_UPDATE_UNREC_ATTR 2
1360 #define BGP_NOTIFY_UPDATE_MISS_ATTR 3
1361 #define BGP_NOTIFY_UPDATE_ATTR_FLAG_ERR 4
1362 #define BGP_NOTIFY_UPDATE_ATTR_LENG_ERR 5
1363 #define BGP_NOTIFY_UPDATE_INVAL_ORIGIN 6
1364 #define BGP_NOTIFY_UPDATE_AS_ROUTE_LOOP 7
1365 #define BGP_NOTIFY_UPDATE_INVAL_NEXT_HOP 8
1366 #define BGP_NOTIFY_UPDATE_OPT_ATTR_ERR 9
1367 #define BGP_NOTIFY_UPDATE_INVAL_NETWORK 10
1368 #define BGP_NOTIFY_UPDATE_MAL_AS_PATH 11
1370 /* BGP_NOTIFY_CEASE sub codes (RFC 4486). */
1371 #define BGP_NOTIFY_CEASE_MAX_PREFIX 1
1372 #define BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN 2
1373 #define BGP_NOTIFY_CEASE_PEER_UNCONFIG 3
1374 #define BGP_NOTIFY_CEASE_ADMIN_RESET 4
1375 #define BGP_NOTIFY_CEASE_CONNECT_REJECT 5
1376 #define BGP_NOTIFY_CEASE_CONFIG_CHANGE 6
1377 #define BGP_NOTIFY_CEASE_COLLISION_RESOLUTION 7
1378 #define BGP_NOTIFY_CEASE_OUT_OF_RESOURCE 8
1380 /* BGP_NOTIFY_CAPABILITY_ERR sub codes (draft-ietf-idr-dynamic-cap-02). */
1381 #define BGP_NOTIFY_CAPABILITY_INVALID_ACTION 1
1382 #define BGP_NOTIFY_CAPABILITY_INVALID_LENGTH 2
1383 #define BGP_NOTIFY_CAPABILITY_MALFORMED_CODE 3
1385 /* BGP finite state machine status. */
1390 #define OpenConfirm 5
1391 #define Established 6
1394 #define BGP_STATUS_MAX 9
1396 /* BGP finite state machine events. */
1399 #define TCP_connection_open 3
1400 #define TCP_connection_closed 4
1401 #define TCP_connection_open_failed 5
1402 #define TCP_fatal_error 6
1403 #define ConnectRetry_timer_expired 7
1404 #define Hold_Timer_expired 8
1405 #define KeepAlive_timer_expired 9
1406 #define Receive_OPEN_message 10
1407 #define Receive_KEEPALIVE_message 11
1408 #define Receive_UPDATE_message 12
1409 #define Receive_NOTIFICATION_message 13
1410 #define Clearing_Completed 14
1411 #define BGP_EVENTS_MAX 15
1413 /* BGP timers default value. */
1414 /* note: the DFLT_ ones depend on compile-time "defaults" selection */
1415 #define BGP_INIT_START_TIMER 1
1416 #define BGP_DEFAULT_HOLDTIME DFLT_BGP_HOLDTIME
1417 #define BGP_DEFAULT_KEEPALIVE DFLT_BGP_KEEPALIVE
1418 #define BGP_DEFAULT_EBGP_ROUTEADV 0
1419 #define BGP_DEFAULT_IBGP_ROUTEADV 0
1420 #define BGP_DEFAULT_CONNECT_RETRY DFLT_BGP_TIMERS_CONNECT
1422 /* BGP default local preference. */
1423 #define BGP_DEFAULT_LOCAL_PREF 100
1425 /* BGP local-preference to send when 'bgp graceful-shutdown'
1427 #define BGP_GSHUT_LOCAL_PREF 0
1429 /* BGP default subgroup packet queue max . */
1430 #define BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX 40
1432 /* BGP graceful restart */
1433 #define BGP_DEFAULT_RESTART_TIME 120
1434 #define BGP_DEFAULT_STALEPATH_TIME 360
1436 /* BGP uptime string length. */
1437 #define BGP_UPTIME_LEN 25
1439 /* Default configuration settings for bgpd. */
1440 #define BGP_VTY_PORT 2605
1441 #define BGP_DEFAULT_CONFIG "bgpd.conf"
1443 /* Check AS path loop when we send NLRI. */
1444 /* #define BGP_SEND_ASPATH_CHECK */
1446 /* BGP Dynamic Neighbors feature */
1447 #define BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT 100
1448 #define BGP_DYNAMIC_NEIGHBORS_LIMIT_MIN 1
1449 #define BGP_DYNAMIC_NEIGHBORS_LIMIT_MAX 5000
1451 /* Flag for peer_clear_soft(). */
1452 enum bgp_clear_type
{
1453 BGP_CLEAR_SOFT_NONE
,
1456 BGP_CLEAR_SOFT_BOTH
,
1457 BGP_CLEAR_SOFT_IN_ORF_PREFIX
1461 #define BGP_INPUT(P) ((P)->curr)
1462 #define BGP_INPUT_PNT(P) (stream_pnt(BGP_INPUT(P)))
1463 #define BGP_IS_VALID_STATE_FOR_NOTIF(S) \
1464 (((S) == OpenSent) || ((S) == OpenConfirm) || ((S) == Established))
1466 /* BGP error codes. */
1467 #define BGP_SUCCESS 0
1468 #define BGP_ERR_INVALID_VALUE -1
1469 #define BGP_ERR_INVALID_FLAG -2
1470 #define BGP_ERR_INVALID_AS -3
1471 #define BGP_ERR_INVALID_BGP -4
1472 #define BGP_ERR_PEER_GROUP_MEMBER -5
1473 #define BGP_ERR_PEER_GROUP_NO_REMOTE_AS -7
1474 #define BGP_ERR_PEER_GROUP_CANT_CHANGE -8
1475 #define BGP_ERR_PEER_GROUP_MISMATCH -9
1476 #define BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT -10
1477 #define BGP_ERR_AS_MISMATCH -12
1478 #define BGP_ERR_PEER_FLAG_CONFLICT -13
1479 #define BGP_ERR_PEER_GROUP_SHUTDOWN -14
1480 #define BGP_ERR_PEER_FILTER_CONFLICT -15
1481 #define BGP_ERR_NOT_INTERNAL_PEER -16
1482 #define BGP_ERR_REMOVE_PRIVATE_AS -17
1483 #define BGP_ERR_AF_UNCONFIGURED -18
1484 #define BGP_ERR_SOFT_RECONFIG_UNCONFIGURED -19
1485 #define BGP_ERR_INSTANCE_MISMATCH -20
1486 #define BGP_ERR_LOCAL_AS_ALLOWED_ONLY_FOR_EBGP -21
1487 #define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS -22
1488 #define BGP_ERR_TCPSIG_FAILED -23
1489 #define BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK -24
1490 #define BGP_ERR_NO_IBGP_WITH_TTLHACK -25
1491 #define BGP_ERR_NO_INTERFACE_CONFIG -26
1492 #define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS_REMOTE_AS -27
1493 #define BGP_ERR_AS_OVERRIDE -28
1494 #define BGP_ERR_INVALID_DYNAMIC_NEIGHBORS_LIMIT -29
1495 #define BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_EXISTS -30
1496 #define BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_NOT_FOUND -31
1497 #define BGP_ERR_INVALID_FOR_DYNAMIC_PEER -32
1498 #define BGP_ERR_MAX -33
1499 #define BGP_ERR_INVALID_FOR_DIRECT_PEER -34
1500 #define BGP_ERR_PEER_SAFI_CONFLICT -35
1503 * Enumeration of different policy kinds a peer can be configured with.
1506 BGP_POLICY_ROUTE_MAP
,
1507 BGP_POLICY_FILTER_LIST
,
1508 BGP_POLICY_PREFIX_LIST
,
1509 BGP_POLICY_DISTRIBUTE_LIST
,
1510 } bgp_policy_type_e
;
1512 /* peer_flag_change_type. */
1513 enum peer_change_type
{
1516 peer_change_reset_in
,
1517 peer_change_reset_out
,
1520 extern struct bgp_master
*bm
;
1521 extern unsigned int multipath_num
;
1524 extern void bgp_terminate(void);
1525 extern void bgp_reset(void);
1526 extern time_t bgp_clock(void);
1527 extern void bgp_zclient_reset(void);
1528 extern struct bgp
*bgp_get_default(void);
1529 extern struct bgp
*bgp_lookup(as_t
, const char *);
1530 extern struct bgp
*bgp_lookup_by_name(const char *);
1531 extern struct bgp
*bgp_lookup_by_vrf_id(vrf_id_t
);
1532 extern struct bgp
*bgp_get_evpn(void);
1533 extern void bgp_set_evpn(struct bgp
*bgp
);
1534 extern struct peer
*peer_lookup(struct bgp
*, union sockunion
*);
1535 extern struct peer
*peer_lookup_by_conf_if(struct bgp
*, const char *);
1536 extern struct peer
*peer_lookup_by_hostname(struct bgp
*, const char *);
1537 extern void bgp_peer_conf_if_to_su_update(struct peer
*);
1538 extern int peer_group_listen_range_del(struct peer_group
*, struct prefix
*);
1539 extern struct peer_group
*peer_group_lookup(struct bgp
*, const char *);
1540 extern struct peer_group
*peer_group_get(struct bgp
*, const char *);
1541 extern struct peer
*peer_create_bind_dynamic_neighbor(struct bgp
*,
1543 struct peer_group
*);
1544 extern struct prefix
*
1545 peer_group_lookup_dynamic_neighbor_range(struct peer_group
*, struct prefix
*);
1546 extern struct peer_group
*peer_group_lookup_dynamic_neighbor(struct bgp
*,
1549 extern struct peer
*peer_lookup_dynamic_neighbor(struct bgp
*,
1553 * Peers are incredibly easy to memory leak
1554 * due to the various ways that they are actually used
1555 * Provide some functionality to debug locks and unlocks
1557 extern struct peer
*peer_lock_with_caller(const char *, struct peer
*);
1558 extern struct peer
*peer_unlock_with_caller(const char *, struct peer
*);
1559 #define peer_unlock(A) peer_unlock_with_caller(__FUNCTION__, (A))
1560 #define peer_lock(B) peer_lock_with_caller(__FUNCTION__, (B))
1562 extern bgp_peer_sort_t
peer_sort(struct peer
*peer
);
1563 extern int peer_active(struct peer
*);
1564 extern int peer_active_nego(struct peer
*);
1565 extern void bgp_recalculate_all_bestpaths(struct bgp
*bgp
);
1566 extern struct peer
*peer_create(union sockunion
*, const char *, struct bgp
*,
1567 as_t
, as_t
, int, afi_t
, safi_t
,
1568 struct peer_group
*);
1569 extern struct peer
*peer_create_accept(struct bgp
*);
1570 extern void peer_xfer_config(struct peer
*dst
, struct peer
*src
);
1571 extern char *peer_uptime(time_t uptime2
, char *buf
, size_t len
, bool use_json
,
1574 extern int bgp_config_write(struct vty
*);
1576 extern void bgp_master_init(struct thread_master
*master
);
1578 extern void bgp_init(unsigned short instance
);
1579 extern void bgp_pthreads_run(void);
1580 extern void bgp_pthreads_finish(void);
1581 extern void bgp_route_map_init(void);
1582 extern void bgp_session_reset(struct peer
*);
1584 extern int bgp_option_set(int);
1585 extern int bgp_option_unset(int);
1586 extern int bgp_option_check(int);
1588 extern int bgp_get(struct bgp
**, as_t
*, const char *, enum bgp_instance_type
);
1589 extern void bgp_instance_up(struct bgp
*);
1590 extern void bgp_instance_down(struct bgp
*);
1591 extern int bgp_delete(struct bgp
*);
1593 extern int bgp_handle_socket(struct bgp
*bgp
, struct vrf
*vrf
,
1594 vrf_id_t old_vrf_id
, bool create
);
1596 extern int bgp_flag_set(struct bgp
*, int);
1597 extern int bgp_flag_unset(struct bgp
*, int);
1598 extern int bgp_flag_check(struct bgp
*, int);
1600 extern void bgp_router_id_zebra_bump(vrf_id_t
, const struct prefix
*);
1601 extern int bgp_router_id_static_set(struct bgp
*, struct in_addr
);
1603 extern int bgp_cluster_id_set(struct bgp
*, struct in_addr
*);
1604 extern int bgp_cluster_id_unset(struct bgp
*);
1606 extern int bgp_confederation_id_set(struct bgp
*, as_t
);
1607 extern int bgp_confederation_id_unset(struct bgp
*);
1608 extern int bgp_confederation_peers_check(struct bgp
*, as_t
);
1610 extern int bgp_confederation_peers_add(struct bgp
*, as_t
);
1611 extern int bgp_confederation_peers_remove(struct bgp
*, as_t
);
1613 extern int bgp_timers_set(struct bgp
*, uint32_t keepalive
, uint32_t holdtime
);
1614 extern int bgp_timers_unset(struct bgp
*);
1616 extern int bgp_default_local_preference_set(struct bgp
*, uint32_t);
1617 extern int bgp_default_local_preference_unset(struct bgp
*);
1619 extern int bgp_default_subgroup_pkt_queue_max_set(struct bgp
*bgp
, uint32_t);
1620 extern int bgp_default_subgroup_pkt_queue_max_unset(struct bgp
*bgp
);
1622 extern int bgp_listen_limit_set(struct bgp
*, int);
1623 extern int bgp_listen_limit_unset(struct bgp
*);
1625 extern int bgp_update_delay_active(struct bgp
*);
1626 extern int bgp_update_delay_configured(struct bgp
*);
1627 extern int bgp_afi_safi_peer_exists(struct bgp
*bgp
, afi_t afi
, safi_t safi
);
1628 extern void peer_as_change(struct peer
*, as_t
, int);
1629 extern int peer_remote_as(struct bgp
*, union sockunion
*, const char *, as_t
*,
1630 int, afi_t
, safi_t
);
1631 extern int peer_group_remote_as(struct bgp
*, const char *, as_t
*, int);
1632 extern int peer_delete(struct peer
*peer
);
1633 extern int peer_group_delete(struct peer_group
*);
1634 extern int peer_group_remote_as_delete(struct peer_group
*);
1635 extern int peer_group_listen_range_add(struct peer_group
*, struct prefix
*);
1637 extern int peer_activate(struct peer
*, afi_t
, safi_t
);
1638 extern int peer_deactivate(struct peer
*, afi_t
, safi_t
);
1639 extern int peer_afc_set(struct peer
*, afi_t
, safi_t
, int);
1641 extern int peer_group_bind(struct bgp
*, union sockunion
*, struct peer
*,
1642 struct peer_group
*, as_t
*);
1644 extern int peer_flag_set(struct peer
*, uint32_t);
1645 extern int peer_flag_unset(struct peer
*, uint32_t);
1646 extern void peer_flag_inherit(struct peer
*peer
, uint32_t flag
);
1648 extern int peer_af_flag_set(struct peer
*, afi_t
, safi_t
, uint32_t);
1649 extern int peer_af_flag_unset(struct peer
*, afi_t
, safi_t
, uint32_t);
1650 extern int peer_af_flag_check(struct peer
*, afi_t
, safi_t
, uint32_t);
1651 extern void peer_af_flag_inherit(struct peer
*peer
, afi_t afi
, safi_t safi
,
1653 extern void peer_change_action(struct peer
*peer
, afi_t afi
, safi_t safi
,
1654 enum peer_change_type type
);
1656 extern int peer_ebgp_multihop_set(struct peer
*, int);
1657 extern int peer_ebgp_multihop_unset(struct peer
*);
1658 extern int is_ebgp_multihop_configured(struct peer
*peer
);
1660 extern int peer_description_set(struct peer
*, const char *);
1661 extern int peer_description_unset(struct peer
*);
1663 extern int peer_update_source_if_set(struct peer
*, const char *);
1664 extern int peer_update_source_addr_set(struct peer
*, const union sockunion
*);
1665 extern int peer_update_source_unset(struct peer
*);
1667 extern int peer_default_originate_set(struct peer
*peer
, afi_t afi
, safi_t safi
,
1669 struct route_map
*route_map
);
1670 extern int peer_default_originate_unset(struct peer
*, afi_t
, safi_t
);
1672 extern int peer_port_set(struct peer
*, uint16_t);
1673 extern int peer_port_unset(struct peer
*);
1675 extern int peer_weight_set(struct peer
*, afi_t
, safi_t
, uint16_t);
1676 extern int peer_weight_unset(struct peer
*, afi_t
, safi_t
);
1678 extern int peer_timers_set(struct peer
*, uint32_t keepalive
,
1680 extern int peer_timers_unset(struct peer
*);
1682 extern int peer_timers_connect_set(struct peer
*, uint32_t);
1683 extern int peer_timers_connect_unset(struct peer
*);
1685 extern int peer_advertise_interval_set(struct peer
*, uint32_t);
1686 extern int peer_advertise_interval_unset(struct peer
*);
1688 extern void peer_interface_set(struct peer
*, const char *);
1689 extern void peer_interface_unset(struct peer
*);
1691 extern int peer_distribute_set(struct peer
*, afi_t
, safi_t
, int, const char *);
1692 extern int peer_distribute_unset(struct peer
*, afi_t
, safi_t
, int);
1694 extern int peer_allowas_in_set(struct peer
*, afi_t
, safi_t
, int, int);
1695 extern int peer_allowas_in_unset(struct peer
*, afi_t
, safi_t
);
1697 extern int peer_local_as_set(struct peer
*, as_t
, int, int);
1698 extern int peer_local_as_unset(struct peer
*);
1700 extern int peer_prefix_list_set(struct peer
*, afi_t
, safi_t
, int,
1702 extern int peer_prefix_list_unset(struct peer
*, afi_t
, safi_t
, int);
1704 extern int peer_aslist_set(struct peer
*, afi_t
, safi_t
, int, const char *);
1705 extern int peer_aslist_unset(struct peer
*, afi_t
, safi_t
, int);
1707 extern int peer_route_map_set(struct peer
*peer
, afi_t afi
, safi_t safi
, int,
1708 const char *name
, struct route_map
*route_map
);
1709 extern int peer_route_map_unset(struct peer
*, afi_t
, safi_t
, int);
1711 extern int peer_unsuppress_map_set(struct peer
*peer
, afi_t afi
, safi_t safi
,
1713 struct route_map
*route_map
);
1715 extern int peer_password_set(struct peer
*, const char *);
1716 extern int peer_password_unset(struct peer
*);
1718 extern int peer_unsuppress_map_unset(struct peer
*, afi_t
, safi_t
);
1720 extern int peer_maximum_prefix_set(struct peer
*, afi_t
, safi_t
, uint32_t,
1721 uint8_t, int, uint16_t);
1722 extern int peer_maximum_prefix_unset(struct peer
*, afi_t
, safi_t
);
1724 extern int peer_clear(struct peer
*, struct listnode
**);
1725 extern int peer_clear_soft(struct peer
*, afi_t
, safi_t
, enum bgp_clear_type
);
1727 extern int peer_ttl_security_hops_set(struct peer
*, int);
1728 extern int peer_ttl_security_hops_unset(struct peer
*);
1730 extern int peer_tx_shutdown_message_set(struct peer
*, const char *msg
);
1731 extern int peer_tx_shutdown_message_unset(struct peer
*);
1733 extern int bgp_route_map_update_timer(struct thread
*thread
);
1734 extern void bgp_route_map_terminate(void);
1736 extern int peer_cmp(struct peer
*p1
, struct peer
*p2
);
1738 extern int bgp_map_afi_safi_iana2int(iana_afi_t pkt_afi
, iana_safi_t pkt_safi
,
1739 afi_t
*afi
, safi_t
*safi
);
1740 extern int bgp_map_afi_safi_int2iana(afi_t afi
, safi_t safi
,
1741 iana_afi_t
*pkt_afi
,
1742 iana_safi_t
*pkt_safi
);
1744 extern struct peer_af
*peer_af_create(struct peer
*, afi_t
, safi_t
);
1745 extern struct peer_af
*peer_af_find(struct peer
*, afi_t
, safi_t
);
1746 extern int peer_af_delete(struct peer
*, afi_t
, safi_t
);
1748 extern void bgp_close(void);
1749 extern void bgp_free(struct bgp
*);
1751 static inline struct bgp
*bgp_lock(struct bgp
*bgp
)
1757 static inline void bgp_unlock(struct bgp
*bgp
)
1759 assert(bgp
->lock
> 0);
1760 if (--bgp
->lock
== 0)
1764 static inline int afindex(afi_t afi
, safi_t safi
)
1770 return BGP_AF_IPV4_UNICAST
;
1772 case SAFI_MULTICAST
:
1773 return BGP_AF_IPV4_MULTICAST
;
1775 case SAFI_LABELED_UNICAST
:
1776 return BGP_AF_IPV4_LBL_UNICAST
;
1779 return BGP_AF_IPV4_VPN
;
1782 return BGP_AF_IPV4_ENCAP
;
1785 return BGP_AF_IPV4_FLOWSPEC
;
1794 return BGP_AF_IPV6_UNICAST
;
1796 case SAFI_MULTICAST
:
1797 return BGP_AF_IPV6_MULTICAST
;
1799 case SAFI_LABELED_UNICAST
:
1800 return BGP_AF_IPV6_LBL_UNICAST
;
1803 return BGP_AF_IPV6_VPN
;
1806 return BGP_AF_IPV6_ENCAP
;
1809 return BGP_AF_IPV6_FLOWSPEC
;
1818 return BGP_AF_L2VPN_EVPN
;
1830 /* If the peer is not a peer-group but is bound to a peer-group return 1 */
1831 static inline int peer_group_active(struct peer
*peer
)
1833 if (!CHECK_FLAG(peer
->sflags
, PEER_STATUS_GROUP
) && peer
->group
)
1838 /* If peer is negotiated at least one address family return 1. */
1839 static inline int peer_afi_active_nego(const struct peer
*peer
, afi_t afi
)
1841 if (peer
->afc_nego
[afi
][SAFI_UNICAST
]
1842 || peer
->afc_nego
[afi
][SAFI_MULTICAST
]
1843 || peer
->afc_nego
[afi
][SAFI_LABELED_UNICAST
]
1844 || peer
->afc_nego
[afi
][SAFI_MPLS_VPN
]
1845 || peer
->afc_nego
[afi
][SAFI_ENCAP
]
1846 || peer
->afc_nego
[afi
][SAFI_FLOWSPEC
]
1847 || peer
->afc_nego
[afi
][SAFI_EVPN
])
1852 /* If at least one address family activated for group, return 1. */
1853 static inline int peer_group_af_configured(struct peer_group
*group
)
1855 struct peer
*peer
= group
->conf
;
1857 if (peer
->afc
[AFI_IP
][SAFI_UNICAST
] || peer
->afc
[AFI_IP
][SAFI_MULTICAST
]
1858 || peer
->afc
[AFI_IP
][SAFI_LABELED_UNICAST
]
1859 || peer
->afc
[AFI_IP
][SAFI_FLOWSPEC
]
1860 || peer
->afc
[AFI_IP
][SAFI_MPLS_VPN
] || peer
->afc
[AFI_IP
][SAFI_ENCAP
]
1861 || peer
->afc
[AFI_IP6
][SAFI_UNICAST
]
1862 || peer
->afc
[AFI_IP6
][SAFI_MULTICAST
]
1863 || peer
->afc
[AFI_IP6
][SAFI_LABELED_UNICAST
]
1864 || peer
->afc
[AFI_IP6
][SAFI_MPLS_VPN
]
1865 || peer
->afc
[AFI_IP6
][SAFI_ENCAP
]
1866 || peer
->afc
[AFI_IP6
][SAFI_FLOWSPEC
]
1867 || peer
->afc
[AFI_L2VPN
][SAFI_EVPN
])
1872 static inline char *timestamp_string(time_t ts
)
1875 tbuf
= time(NULL
) - (bgp_clock() - ts
);
1876 return ctime(&tbuf
);
1879 static inline int peer_established(struct peer
*peer
)
1881 if (peer
->status
== Established
)
1886 static inline int peer_dynamic_neighbor(struct peer
*peer
)
1888 return (CHECK_FLAG(peer
->flags
, PEER_FLAG_DYNAMIC_NEIGHBOR
)) ? 1 : 0;
1891 static inline int peer_cap_enhe(struct peer
*peer
, afi_t afi
, safi_t safi
)
1893 return (CHECK_FLAG(peer
->af_cap
[afi
][safi
], PEER_CAP_ENHE_AF_NEGO
));
1896 /* Lookup VRF for BGP instance based on its type. */
1897 static inline struct vrf
*bgp_vrf_lookup_by_instance_type(struct bgp
*bgp
)
1901 if (bgp
->inst_type
== BGP_INSTANCE_TYPE_DEFAULT
)
1902 vrf
= vrf_lookup_by_id(VRF_DEFAULT
);
1903 else if (bgp
->inst_type
== BGP_INSTANCE_TYPE_VRF
)
1904 vrf
= vrf_lookup_by_name(bgp
->name
);
1911 /* Link BGP instance to VRF. */
1912 static inline void bgp_vrf_link(struct bgp
*bgp
, struct vrf
*vrf
)
1914 bgp
->vrf_id
= vrf
->vrf_id
;
1915 if (vrf
->info
!= (void *)bgp
)
1916 vrf
->info
= (void *)bgp_lock(bgp
);
1919 /* Unlink BGP instance from VRF. */
1920 static inline void bgp_vrf_unlink(struct bgp
*bgp
, struct vrf
*vrf
)
1922 if (vrf
->info
== (void *)bgp
) {
1926 bgp
->vrf_id
= VRF_UNKNOWN
;
1929 extern void bgp_unset_redist_vrf_bitmaps(struct bgp
*, vrf_id_t
);
1931 /* For benefit of rfapi */
1932 extern struct peer
*peer_new(struct bgp
*bgp
);
1934 extern struct peer
*peer_lookup_in_view(struct vty
*vty
, struct bgp
*bgp
,
1935 const char *ip_str
, bool use_json
);
1937 #endif /* _QUAGGA_BGPD_H */