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718e3744 1/* BGP message definition header.
2 Copyright (C) 1996, 97, 98, 99, 2000 Kunihiro Ishiguro
3
4This file is part of GNU Zebra.
5
6GNU Zebra is free software; you can redistribute it and/or modify it
7under the terms of the GNU General Public License as published by the
8Free Software Foundation; either version 2, or (at your option) any
9later version.
10
11GNU Zebra is distributed in the hope that it will be useful, but
12WITHOUT ANY WARRANTY; without even the implied warranty of
13MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14General Public License for more details.
15
16You should have received a copy of the GNU General Public License
17along with GNU Zebra; see the file COPYING. If not, write to the Free
18Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
1902111-1307, USA. */
20
00d252cb 21#ifndef _QUAGGA_BGPD_H
22#define _QUAGGA_BGPD_H
23
19df7279 24#include "qobj.h"
856ca177 25#include "lib/json.h"
6aeb9e78
DS		 26#include "vrf.h"
27
718e3744 28/* For union sockunion. */
3f9c7369 29#include "queue.h"
718e3744 30#include "sockunion.h"
518f0eb1 31#include "routemap.h"
ffd0c037 32#include "linklist.h"
4a1ab8e4 33#include "bgp_memory.h"
718e3744 34
04b6bdc0
DW		 35#define BGP_MAX_HOSTNAME 64 /* Linux max, is larger than most other sys */
36
5c81b96a 37/* Default interval for IPv6 RAs when triggered by BGP unnumbered neighbor. */
38#define BGP_UNNUM_DEFAULT_RA_INTERVAL 10
39
3f9c7369
DS		 40struct update_subgroup;
41struct bpacket;
42
0299c004
DS		 43/*
44 * Allow the neighbor XXXX remote-as to take internal or external
45 * AS_SPECIFIED is zero to auto-inherit original non-feature/enhancement behavior
46 * in the system.
47 */
48enum {
49 AS_UNSPECIFIED = 0,
50 AS_SPECIFIED,
51 AS_INTERNAL,
52 AS_EXTERNAL,
53};
54
718e3744 55/* Typedef BGP specific types. */
0b2aa3a0
PJ		 56typedef u_int32_t as_t;
57typedef u_int16_t as16_t; /* we may still encounter 16 Bit asnums */
718e3744 58typedef u_int16_t bgp_size_t;
59
3f9c7369
DS		 60#define max(a,b) \
61 ({ __typeof__ (a) _a = (a); \
62 __typeof__ (b) _b = (b); \
63 _a > _b ? _a : _b; })
64
65enum bgp_af_index
66{
67 BGP_AF_START,
68 BGP_AF_IPV4_UNICAST = BGP_AF_START,
69 BGP_AF_IPV4_MULTICAST,
70 BGP_AF_IPV4_VPN,
71 BGP_AF_IPV6_UNICAST,
72 BGP_AF_IPV6_MULTICAST,
6407da5a 73 BGP_AF_IPV6_VPN,
587ff0fd
LB		 74 BGP_AF_IPV4_ENCAP,
75 BGP_AF_IPV6_ENCAP,
3f9c7369
DS		 76 BGP_AF_MAX
77};
78
79#define AF_FOREACH(af) \
80 for ((af) = BGP_AF_START; (af) < BGP_AF_MAX; (af)++)
81
82#define FOREACH_AFI_SAFI(afi, safi) \
83 for (afi = AFI_IP; afi < AFI_MAX; afi++) \
84 for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++)
85
718e3744 86/* BGP master for system wide configurations and variables. */
87struct bgp_master
88{
89 /* BGP instance list. */
90 struct list *bgp;
91
87d4a781
DS		 92 /* BGP thread master. */
93 struct thread_master *master;
94
200df115 95 /* work queues */
96 struct work_queue *process_main_queue;
200df115 97
0df7c91f
PJ		 98 /* Listening sockets */
99 struct list *listen_sockets;
100
718e3744 101 /* BGP port number. */
102 u_int16_t port;
103
3a02d1f7
PJ		 104 /* Listener address */
105 char *address;
106
718e3744 107 /* BGP start time. */
108 time_t start_time;
109
110 /* Various BGP global configuration. */
111 u_char options;
112#define BGP_OPT_NO_FIB (1 << 0)
113#define BGP_OPT_MULTIPLE_INSTANCE (1 << 1)
114#define BGP_OPT_CONFIG_CISCO (1 << 2)
cccbc015 115#define BGP_OPT_NO_LISTEN (1 << 3)
3f9c7369 116
f43e655e
RW		 117 uint64_t updgrp_idspace;
118 uint64_t subgrp_idspace;
5fe9f963 119
120 /* timer to dampen route map changes */
121 struct thread *t_rmap_update; /* Handle route map updates */
122 u_int32_t rmap_update_timer; /* Route map update timer */
123#define RMAP_DEFAULT_UPDATE_TIMER 5 /* disabled by default */
19df7279
DL		 124
125 QOBJ_FIELDS
718e3744 126};
19df7279 127DECLARE_QOBJ_TYPE(bgp_master)
718e3744 128
73ac8160
DS		 129/* BGP route-map structure. */
130struct bgp_rmap
131{
132 char *name;
133 struct route_map *map;
134};
135
7c8ff89e
DS		 136struct bgp_redist
137{
138 u_short instance;
139
140 /* BGP redistribute metric configuration. */
141 u_char redist_metric_flag;
142 u_int32_t redist_metric;
143
144 /* BGP redistribute route-map. */
145 struct bgp_rmap rmap;
146};
147
ad4cbda1 148/*
149 * Type of 'struct bgp'.
150 * - Default: The default instance
151 * - VRF: A specific (non-default) VRF
152 * - View: An instance used for route exchange
153 * The "default" instance is treated separately to simplify the code. Note
154 * that if deployed in a Multi-VRF environment, it may not exist.
155 */
156enum bgp_instance_type
157{
158 BGP_INSTANCE_TYPE_DEFAULT,
159 BGP_INSTANCE_TYPE_VRF,
160 BGP_INSTANCE_TYPE_VIEW
161};
162
718e3744 163/* BGP instance structure. */
164struct bgp
165{
166 /* AS number of this BGP instance. */
167 as_t as;
168
169 /* Name of this BGP instance. */
170 char *name;
6aeb9e78 171
ad4cbda1 172 /* Type of instance and VRF id. */
173 enum bgp_instance_type inst_type;
6aeb9e78 174 vrf_id_t vrf_id;
200df115 175
0088b5dc
SH		 176 /* Reference count to allow peer_delete to finish after bgp_delete */
177 int lock;
178
718e3744 179 /* Self peer. */
180 struct peer *peer_self;
181
182 /* BGP peer. */
183 struct list *peer;
dd793e4a 184 struct hash *peerhash;
718e3744 185
186 /* BGP peer group. */
187 struct list *group;
188
f14e6fdb
DS		 189 /* The maximum number of BGP dynamic neighbors that can be created */
190 int dynamic_neighbors_limit;
191
192 /* The current number of BGP dynamic neighbors */
193 int dynamic_neighbors_count;
194
3f9c7369
DS		 195 struct hash *update_groups[BGP_AF_MAX];
196
197 /*
198 * Global statistics for update groups.
199 */
200 struct {
201 u_int32_t join_events;
202 u_int32_t prune_events;
203 u_int32_t merge_events;
204 u_int32_t split_events;
205 u_int32_t updgrp_switch_events;
206 u_int32_t peer_refreshes_combined;
207 u_int32_t adj_count;
208 u_int32_t merge_checks_triggered;
209
210 u_int32_t updgrps_created;
211 u_int32_t updgrps_deleted;
212 u_int32_t subgrps_created;
213 u_int32_t subgrps_deleted;
214 } update_group_stats;
215
718e3744 216 /* BGP configuration. */
217 u_int16_t config;
c2d58d6d 218#define BGP_CONFIG_CLUSTER_ID (1 << 0)
219#define BGP_CONFIG_CONFEDERATION (1 << 1)
718e3744 220
221 /* BGP router identifier. */
222 struct in_addr router_id;
18a6dce6 223 struct in_addr router_id_static;
6aeb9e78 224 struct in_addr router_id_zebra;
718e3744 225
226 /* BGP route reflector cluster ID. */
227 struct in_addr cluster_id;
228
229 /* BGP confederation information. */
230 as_t confed_id;
231 as_t *confed_peers;
232 int confed_peers_cnt;
233
abc920f8
DS		 234 struct thread *t_startup; /* start-up timer on only once at the beginning */
235
236 u_int32_t v_maxmed_onstartup; /* Duration of max-med on start-up */
237#define BGP_MAXMED_ONSTARTUP_UNCONFIGURED 0 /* 0 means off, its the default */
238 u_int32_t maxmed_onstartup_value; /* Max-med value when active on start-up */
239 struct thread *t_maxmed_onstartup; /* non-null when max-med onstartup is on */
240 u_char maxmed_onstartup_over; /* Flag to make it effective only once */
241
242 u_char v_maxmed_admin; /* 1/0 if max-med administrative is on/off */
243#define BGP_MAXMED_ADMIN_UNCONFIGURED 0 /* Off by default */
244 u_int32_t maxmed_admin_value; /* Max-med value when administrative in on */
245#define BGP_MAXMED_VALUE_DEFAULT 4294967294 /* Maximum by default */
246
247 u_char maxmed_active; /* 1/0 if max-med is active or not */
248 u_int32_t maxmed_value; /* Max-med value when its active */
fe7d2a48 249
f188f2c4
DS		 250 /* BGP update delay on startup */
251 struct thread *t_update_delay;
252 struct thread *t_establish_wait;
253 u_char update_delay_over;
4a16ae86
DS		 254 u_char main_zebra_update_hold;
255 u_char main_peers_update_hold;
f188f2c4
DS		 256 u_int16_t v_update_delay;
257 u_int16_t v_establish_wait;
258 char update_delay_begin_time[64];
259 char update_delay_end_time[64];
4a16ae86
DS		 260 char update_delay_zebra_resume_time[64];
261 char update_delay_peers_resume_time[64];
f188f2c4
DS		 262 u_int32_t established;
263 u_int32_t restarted_peers;
264 u_int32_t implicit_eors;
265 u_int32_t explicit_eors;
266#define BGP_UPDATE_DELAY_DEF 0
267#define BGP_UPDATE_DELAY_MIN 0
268#define BGP_UPDATE_DELAY_MAX 3600
269
718e3744 270 /* BGP flags. */
8bd9d948 271 u_int32_t flags;
718e3744 272#define BGP_FLAG_ALWAYS_COMPARE_MED (1 << 0)
273#define BGP_FLAG_DETERMINISTIC_MED (1 << 1)
274#define BGP_FLAG_MED_MISSING_AS_WORST (1 << 2)
275#define BGP_FLAG_MED_CONFED (1 << 3)
276#define BGP_FLAG_NO_DEFAULT_IPV4 (1 << 4)
277#define BGP_FLAG_NO_CLIENT_TO_CLIENT (1 << 5)
278#define BGP_FLAG_ENFORCE_FIRST_AS (1 << 6)
279#define BGP_FLAG_COMPARE_ROUTER_ID (1 << 7)
280#define BGP_FLAG_ASPATH_IGNORE (1 << 8)
281#define BGP_FLAG_IMPORT_CHECK (1 << 9)
282#define BGP_FLAG_NO_FAST_EXT_FAILOVER (1 << 10)
848973c7 283#define BGP_FLAG_LOG_NEIGHBOR_CHANGES (1 << 11)
538621f2 284#define BGP_FLAG_GRACEFUL_RESTART (1 << 12)
6811845b 285#define BGP_FLAG_ASPATH_CONFED (1 << 13)
2fdd455c 286#define BGP_FLAG_ASPATH_MULTIPATH_RELAX (1 << 14)
8bd9d948 287#define BGP_FLAG_RR_ALLOW_OUTBOUND_POLICY (1 << 15)
907f92c8 288#define BGP_FLAG_DISABLE_NH_CONNECTED_CHK (1 << 16)
219178b6 289#define BGP_FLAG_MULTIPATH_RELAX_AS_SET (1 << 17)
078430f6 290#define BGP_FLAG_FORCE_STATIC_PROCESS (1 << 18)
5623e905 291#define BGP_FLAG_SHOW_HOSTNAME (1 << 19)
6a9a3cde 292#define BGP_FLAG_GR_PRESERVE_FWD (1 << 20)
718e3744 293
294 /* BGP Per AF flags */
295 u_int16_t af_flags[AFI_MAX][SAFI_MAX];
296#define BGP_CONFIG_DAMPENING (1 << 0)
297
6aeb9e78
DS		 298 /* Route table for next-hop lookup cache. */
299 struct bgp_table *nexthop_cache_table[AFI_MAX];
300
301 /* Route table for import-check */
302 struct bgp_table *import_check_table[AFI_MAX];
303
304 struct bgp_table *connected_table[AFI_MAX];
305
306 struct hash *address_hash;
307
718e3744 308 /* Static route configuration. */
309 struct bgp_table *route[AFI_MAX][SAFI_MAX];
310
311 /* Aggregate address configuration. */
312 struct bgp_table *aggregate[AFI_MAX][SAFI_MAX];
313
314 /* BGP routing information base. */
315 struct bgp_table *rib[AFI_MAX][SAFI_MAX];
316
73ac8160
DS		 317 /* BGP table route-map. */
318 struct bgp_rmap table_map[AFI_MAX][SAFI_MAX];
319
718e3744 320 /* BGP redistribute configuration. */
7c8ff89e 321 struct list *redist[AFI_MAX][ZEBRA_ROUTE_MAX];
718e3744 322
0de4848d
DS		 323 /* timer to re-evaluate neighbor default-originate route-maps */
324 struct thread *t_rmap_def_originate_eval;
325#define RMAP_DEFAULT_ORIGINATE_EVAL_TIMER 5
326
718e3744 327 /* BGP distance configuration. */
734b349e
MZ		 328 u_char distance_ebgp[AFI_MAX][SAFI_MAX];
329 u_char distance_ibgp[AFI_MAX][SAFI_MAX];
330 u_char distance_local[AFI_MAX][SAFI_MAX];
718e3744 331
332 /* BGP default local-preference. */
333 u_int32_t default_local_pref;
334
3f9c7369
DS		 335 /* BGP default subgroup pkt queue max */
336 u_int32_t default_subgroup_pkt_queue_max;
337
718e3744 338 /* BGP default timer. */
339 u_int32_t default_holdtime;
340 u_int32_t default_keepalive;
538621f2 341
342 /* BGP graceful restart */
93406d87 343 u_int32_t restart_time;
344 u_int32_t stalepath_time;
165b5fff
JB		 345
346 /* Maximum-paths configuration */
347 struct bgp_maxpaths_cfg {
348 u_int16_t maxpaths_ebgp;
349 u_int16_t maxpaths_ibgp;
5e242b0d
DS		 350 u_int16_t ibgp_flags;
351#define BGP_FLAG_IBGP_MULTIPATH_SAME_CLUSTERLEN (1 << 0)
165b5fff 352 } maxpaths[AFI_MAX][SAFI_MAX];
cb1faec9
DS		 353
354 u_int32_t wpkt_quanta; /* per peer packet quanta to write */
3f9c7369 355 u_int32_t coalesce_time;
adbac85e
DW		 356
357 u_int32_t addpath_tx_id;
358 int addpath_tx_used[AFI_MAX][SAFI_MAX];
65efcfce
LB		 359
360#if ENABLE_BGP_VNC
361 struct rfapi_cfg *rfapi_cfg;
362 struct rfapi *rfapi;
363#endif
19df7279
DL		 364
365 QOBJ_FIELDS
718e3744 366};
19df7279 367DECLARE_QOBJ_TYPE(bgp)
718e3744 368
2a3d5731 369#define BGP_ROUTE_ADV_HOLD(bgp) (bgp->main_peers_update_hold)
d889623f 370
ad4cbda1 371#define IS_BGP_INST_KNOWN_TO_ZEBRA(bgp) \
372 (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT || \
5c81a5f3 373 (bgp->inst_type == BGP_INSTANCE_TYPE_VRF && bgp->vrf_id != VRF_UNKNOWN))
ad4cbda1 374
718e3744 375/* BGP peer-group support. */
376struct peer_group
377{
378 /* Name of the peer-group. */
379 char *name;
380
381 /* Pointer to BGP. */
382 struct bgp *bgp;
383
384 /* Peer-group client list. */
385 struct list *peer;
386
f14e6fdb
DS		 387 /** Dynamic neighbor listening ranges */
388 struct list *listen_range[AFI_MAX];
389
718e3744 390 /* Peer-group config */
391 struct peer *conf;
392};
393
394/* BGP Notify message format. */
395struct bgp_notify
396{
397 u_char code;
398 u_char subcode;
399 char *data;
400 bgp_size_t length;
401};
402
403/* Next hop self address. */
404struct bgp_nexthop
405{
406 struct interface *ifp;
407 struct in_addr v4;
718e3744 408 struct in6_addr v6_global;
409 struct in6_addr v6_local;
718e3744 410};
411
a82478b9
DS		 412/* BGP addpath values */
413#define BGP_ADDPATH_RX 1
414#define BGP_ADDPATH_TX 2
415#define BGP_ADDPATH_ID_LEN 4
416
adbac85e
DW		 417#define BGP_ADDPATH_TX_ID_FOR_DEFAULT_ORIGINATE 1
418
718e3744 419/* BGP router distinguisher value. */
420#define BGP_RD_SIZE 8
421
422struct bgp_rd
423{
424 u_char val[BGP_RD_SIZE];
425};
426
2a3d5731
DW		 427#define RMAP_IN 0
428#define RMAP_OUT 1
429#define RMAP_MAX 2
fee0f4c6 430
65efcfce
LB		 431#include "filter.h"
432
718e3744 433/* BGP filter structure. */
434struct bgp_filter
435{
436 /* Distribute-list. */
437 struct
438 {
439 char *name;
440 struct access_list *alist;
441 } dlist[FILTER_MAX];
442
443 /* Prefix-list. */
444 struct
445 {
446 char *name;
447 struct prefix_list *plist;
448 } plist[FILTER_MAX];
449
450 /* Filter-list. */
451 struct
452 {
453 char *name;
454 struct as_list *aslist;
455 } aslist[FILTER_MAX];
456
457 /* Route-map. */
458 struct
459 {
460 char *name;
461 struct route_map *map;
fee0f4c6 462 } map[RMAP_MAX];
718e3744 463
464 /* Unsuppress-map. */
465 struct
466 {
467 char *name;
468 struct route_map *map;
469 } usmap;
470};
471
6d85b15b
JBD		 472/* IBGP/EBGP identifier. We also have a CONFED peer, which is to say,
473 a peer who's AS is part of our Confederation. */
474typedef enum
475{
476 BGP_PEER_IBGP = 1,
477 BGP_PEER_EBGP,
478 BGP_PEER_INTERNAL,
479 BGP_PEER_CONFED,
480} bgp_peer_sort_t;
481
d6661008
DS		 482/* BGP message header and packet size. */
483#define BGP_MARKER_SIZE 16
484#define BGP_HEADER_SIZE 19
485#define BGP_MAX_PACKET_SIZE 4096
0a91ff55 486#define BGP_MAX_PACKET_SIZE_OVERFLOW 1024
d6661008 487
3f9c7369
DS		 488/*
489 * Trigger delay for bgp_announce_route().
490 */
491#define BGP_ANNOUNCE_ROUTE_SHORT_DELAY_MS 100
492#define BGP_ANNOUNCE_ROUTE_DELAY_MS 500
493
494struct peer_af
495{
496 /* back pointer to the peer */
497 struct peer *peer;
498
499 /* which subgroup the peer_af belongs to */
500 struct update_subgroup *subgroup;
501
502 /* for being part of an update subgroup's peer list */
503 LIST_ENTRY(peer_af) subgrp_train;
504
505 /* for being part of a packet's peer list */
506 LIST_ENTRY(peer_af) pkt_train;
507
508 struct bpacket *next_pkt_to_send;
509
510 /*
511 * Trigger timer for bgp_announce_route().
512 */
513 struct thread *t_announce_route;
514
515 afi_t afi;
516 safi_t safi;
517 int afid;
518};
519
718e3744 520/* BGP neighbor structure. */
521struct peer
522{
523 /* BGP structure. */
524 struct bgp *bgp;
525
200df115 526 /* reference count, primarily to allow bgp_process'ing of route_node's
527 * to be done after a struct peer is deleted.
528 *
529 * named 'lock' for hysterical reasons within Quagga.
530 */
531 int lock;
532
718e3744 533 /* BGP peer group. */
534 struct peer_group *group;
f43e655e 535 uint64_t version[AFI_MAX][SAFI_MAX];
3f9c7369
DS		 536
537 /* BGP peer_af structures, per configured AF on this peer */
538 struct peer_af *peer_af_array[BGP_AF_MAX];
718e3744 539
540 /* Peer's remote AS number. */
0299c004
DS		 541 int as_type;
542 as_t as;
718e3744 543
544 /* Peer's local AS number. */
545 as_t local_as;
546
6d85b15b
JBD		 547 bgp_peer_sort_t sort;
548
718e3744 549 /* Peer's Change local AS number. */
550 as_t change_local_as;
551
552 /* Remote router ID. */
553 struct in_addr remote_id;
554
555 /* Local router ID. */
556 struct in_addr local_id;
557
558 /* Packet receive and send buffer. */
559 struct stream *ibuf;
560 struct stream_fifo *obuf;
561 struct stream *work;
562
8c71e481
PM		 563 /* We use a separate stream to encode MP_REACH_NLRI for efficient
564 * NLRI packing. peer->work stores all the other attributes. The
565 * actual packet is then constructed by concatenating the two.
566 */
567 struct stream *scratch;
568
1ff9a340
DS		 569 /* the doppelganger peer structure, due to dual TCP conn setup */
570 struct peer *doppelganger;
571
718e3744 572 /* Status of the peer. */
573 int status;
574 int ostatus;
575
6403814c
DS		 576 /* FSM events, stored for debug purposes.
577 * Note: uchar used for reduced memory usage.
578 */
579 unsigned char cur_event;
580 unsigned char last_event;
581 unsigned char last_major_event;
582
0b2aa3a0
PJ		 583 /* Peer index, used for dumping TABLE_DUMP_V2 format */
584 uint16_t table_dump_index;
585
718e3744 586 /* Peer information */
eb821189 587 int fd; /* File descriptor */
588 int ttl; /* TTL of TCP connection to the peer. */
baa376fc 589 int rtt; /* Estimated round-trip-time from TCP_INFO */
fa411a21 590 int gtsm_hops; /* minimum hopcount to peer */
eb821189 591 char *desc; /* Description of the peer. */
592 unsigned short port; /* Destination port for peer */
593 char *host; /* Printable address of the peer. */
594 union sockunion su; /* Sockunion address of the peer. */
a80beece 595#define BGP_PEER_SU_UNSPEC(peer) (peer->su.sa.sa_family == AF_UNSPEC)
eb821189 596 time_t uptime; /* Last Up/Down time */
597 time_t readtime; /* Last read time */
598 time_t resettime; /* Last reset time */
718e3744 599
b892f1dd 600 ifindex_t ifindex; /* ifindex of the BGP connection. */
a80beece 601 char *conf_if; /* neighbor interface config name. */
4a04e5f7 602 struct interface *ifp; /* corresponding interface */
eb821189 603 char *ifname; /* bind interface name. */
604 char *update_if;
605 union sockunion *update_source;
eb821189 606
607 union sockunion *su_local; /* Sockunion of local address. */
608 union sockunion *su_remote; /* Sockunion of remote address. */
609 int shared_network; /* Is this peer shared same network. */
610 struct bgp_nexthop nexthop; /* Nexthop */
718e3744 611
612 /* Peer address family configuration. */
613 u_char afc[AFI_MAX][SAFI_MAX];
614 u_char afc_nego[AFI_MAX][SAFI_MAX];
615 u_char afc_adv[AFI_MAX][SAFI_MAX];
616 u_char afc_recv[AFI_MAX][SAFI_MAX];
617
0a486e5f 618 /* Capability flags (reset in bgp_stop) */
6410e93a 619 u_int32_t cap;
718e3744 620#define PEER_CAP_REFRESH_ADV (1 << 0) /* refresh advertised */
621#define PEER_CAP_REFRESH_OLD_RCV (1 << 1) /* refresh old received */
622#define PEER_CAP_REFRESH_NEW_RCV (1 << 2) /* refresh rfc received */
623#define PEER_CAP_DYNAMIC_ADV (1 << 3) /* dynamic advertised */
624#define PEER_CAP_DYNAMIC_RCV (1 << 4) /* dynamic received */
538621f2 625#define PEER_CAP_RESTART_ADV (1 << 5) /* restart advertised */
626#define PEER_CAP_RESTART_RCV (1 << 6) /* restart received */
0b2aa3a0
PJ		 627#define PEER_CAP_AS4_ADV (1 << 7) /* as4 advertised */
628#define PEER_CAP_AS4_RCV (1 << 8) /* as4 received */
fe7d2a48
DS		 629#define PEER_CAP_RESTART_BIT_ADV (1 << 9) /* sent restart state */
630#define PEER_CAP_RESTART_BIT_RCV (1 << 10) /* peer restart state */
a82478b9
DS		 631#define PEER_CAP_ADDPATH_ADV (1 << 11) /* addpath advertised */
632#define PEER_CAP_ADDPATH_RCV (1 << 12) /* addpath received */
c744aa9f
DS		 633#define PEER_CAP_ENHE_ADV (1 << 13) /* Extended nexthop advertised */
634#define PEER_CAP_ENHE_RCV (1 << 14) /* Extended nexthop received */
04b6bdc0
DW		 635#define PEER_CAP_HOSTNAME_ADV (1 << 15) /* hostname advertised */
636#define PEER_CAP_HOSTNAME_RCV (1 << 16) /* hostname received */
718e3744 637
0a486e5f 638 /* Capability flags (reset in bgp_stop) */
04b6bdc0 639 u_int32_t af_cap[AFI_MAX][SAFI_MAX];
718e3744 640#define PEER_CAP_ORF_PREFIX_SM_ADV (1 << 0) /* send-mode advertised */
641#define PEER_CAP_ORF_PREFIX_RM_ADV (1 << 1) /* receive-mode advertised */
642#define PEER_CAP_ORF_PREFIX_SM_RCV (1 << 2) /* send-mode received */
643#define PEER_CAP_ORF_PREFIX_RM_RCV (1 << 3) /* receive-mode received */
644#define PEER_CAP_ORF_PREFIX_SM_OLD_RCV (1 << 4) /* send-mode received */
645#define PEER_CAP_ORF_PREFIX_RM_OLD_RCV (1 << 5) /* receive-mode received */
93406d87 646#define PEER_CAP_RESTART_AF_RCV (1 << 6) /* graceful restart afi/safi received */
647#define PEER_CAP_RESTART_AF_PRESERVE_RCV (1 << 7) /* graceful restart afi/safi F-bit received */
a82478b9
DS		 648#define PEER_CAP_ADDPATH_AF_TX_ADV (1 << 8) /* addpath tx advertised */
649#define PEER_CAP_ADDPATH_AF_TX_RCV (1 << 9) /* addpath tx received */
650#define PEER_CAP_ADDPATH_AF_RX_ADV (1 << 10) /* addpath rx advertised */
651#define PEER_CAP_ADDPATH_AF_RX_RCV (1 << 11) /* addpath rx received */
8a92a8a0
DS		 652#define PEER_CAP_ENHE_AF_ADV (1 << 12) /* Extended nexthopi afi/safi advertised */
653#define PEER_CAP_ENHE_AF_RCV (1 << 13) /* Extended nexthop afi/safi received */
654#define PEER_CAP_ENHE_AF_NEGO (1 << 14) /* Extended nexthop afi/safi negotiated */
718e3744 655
656 /* Global configuration flags. */
657 u_int32_t flags;
658#define PEER_FLAG_PASSIVE (1 << 0) /* passive mode */
659#define PEER_FLAG_SHUTDOWN (1 << 1) /* shutdown */
660#define PEER_FLAG_DONT_CAPABILITY (1 << 2) /* dont-capability */
661#define PEER_FLAG_OVERRIDE_CAPABILITY (1 << 3) /* override-capability */
662#define PEER_FLAG_STRICT_CAP_MATCH (1 << 4) /* strict-match */
c9502438 663#define PEER_FLAG_DYNAMIC_CAPABILITY (1 << 5) /* dynamic capability */
6ffd2079 664#define PEER_FLAG_DISABLE_CONNECTED_CHECK (1 << 6) /* disable-connected-check */
c9502438 665#define PEER_FLAG_LOCAL_AS_NO_PREPEND (1 << 7) /* local-as no-prepend */
9d3f9705 666#define PEER_FLAG_LOCAL_AS_REPLACE_AS (1 << 8) /* local-as no-prepend replace-as */
1ff9a340
DS		 667#define PEER_FLAG_DELETE (1 << 9) /* mark the peer for deleting */
668#define PEER_FLAG_CONFIG_NODE (1 << 10) /* the node to update configs on */
7f342629
DS		 669#define PEER_FLAG_LONESOUL (1 << 11)
670#define PEER_FLAG_DYNAMIC_NEIGHBOR (1 << 12) /* dynamic neighbor */
671#define PEER_FLAG_CAPABILITY_ENHE (1 << 13) /* Extended next-hop (rfc 5549)*/
88177fe3 672#define PEER_FLAG_IFPEER_V6ONLY (1 << 14) /* if-based peer is v6 only */
65efcfce
LB		 673#if ENABLE_BGP_VNC
674#define PEER_FLAG_IS_RFAPI_HD (1 << 15) /* attached to rfapi HD */
675#endif
718e3744 676
93406d87 677 /* NSF mode (graceful restart) */
678 u_char nsf[AFI_MAX][SAFI_MAX];
679
718e3744 680 /* Per AF configuration flags. */
681 u_int32_t af_flags[AFI_MAX][SAFI_MAX];
682#define PEER_FLAG_SEND_COMMUNITY (1 << 0) /* send-community */
683#define PEER_FLAG_SEND_EXT_COMMUNITY (1 << 1) /* send-community ext. */
684#define PEER_FLAG_NEXTHOP_SELF (1 << 2) /* next-hop-self */
685#define PEER_FLAG_REFLECTOR_CLIENT (1 << 3) /* reflector-client */
686#define PEER_FLAG_RSERVER_CLIENT (1 << 4) /* route-server-client */
687#define PEER_FLAG_SOFT_RECONFIG (1 << 5) /* soft-reconfiguration */
688#define PEER_FLAG_AS_PATH_UNCHANGED (1 << 6) /* transparent-as */
689#define PEER_FLAG_NEXTHOP_UNCHANGED (1 << 7) /* transparent-next-hop */
690#define PEER_FLAG_MED_UNCHANGED (1 << 8) /* transparent-next-hop */
691#define PEER_FLAG_DEFAULT_ORIGINATE (1 << 9) /* default-originate */
692#define PEER_FLAG_REMOVE_PRIVATE_AS (1 << 10) /* remove-private-as */
693#define PEER_FLAG_ALLOWAS_IN (1 << 11) /* set allowas-in */
694#define PEER_FLAG_ORF_PREFIX_SM (1 << 12) /* orf capability send-mode */
695#define PEER_FLAG_ORF_PREFIX_RM (1 << 13) /* orf capability receive-mode */
696#define PEER_FLAG_MAX_PREFIX (1 << 14) /* maximum prefix */
697#define PEER_FLAG_MAX_PREFIX_WARNING (1 << 15) /* maximum prefix warning-only */
0df7c91f 698#define PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED (1 << 16) /* leave link-local nexthop unchanged */
a538debe 699#define PEER_FLAG_FORCE_NEXTHOP_SELF (1 << 17) /* next-hop-self force */
5000f21c
DS		 700#define PEER_FLAG_REMOVE_PRIVATE_AS_ALL (1 << 18) /* remove-private-as all */
701#define PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE (1 << 19) /* remove-private-as replace-as */
c7122e14 702#define PEER_FLAG_AS_OVERRIDE (1 << 20) /* as-override */
88b8ed8d 703#define PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE (1 << 21) /* remove-private-as all replace-as */
adbac85e 704#define PEER_FLAG_ADDPATH_TX_ALL_PATHS (1 << 22) /* addpath-tx-all-paths */
06370dac 705#define PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS (1 << 23) /* addpath-tx-bestpath-per-AS */
d93f7ffc 706#define PEER_FLAG_WEIGHT (1 << 24) /* weight */
aac9ef6c 707#define PEER_FLAG_ALLOWAS_IN_ORIGIN (1 << 25) /* allowas-in origin */
0df7c91f
PJ		 708
709 /* MD5 password */
710 char *password;
718e3744 711
712 /* default-originate route-map. */
713 struct
714 {
715 char *name;
716 struct route_map *map;
717 } default_rmap[AFI_MAX][SAFI_MAX];
718
719 /* Peer status flags. */
720 u_int16_t sflags;
721#define PEER_STATUS_ACCEPT_PEER (1 << 0) /* accept peer */
722#define PEER_STATUS_PREFIX_OVERFLOW (1 << 1) /* prefix-overflow */
723#define PEER_STATUS_CAPABILITY_OPEN (1 << 2) /* capability open send */
724#define PEER_STATUS_HAVE_ACCEPT (1 << 3) /* accept peer's parent */
725#define PEER_STATUS_GROUP (1 << 4) /* peer-group conf */
93406d87 726#define PEER_STATUS_NSF_MODE (1 << 5) /* NSF aware peer */
727#define PEER_STATUS_NSF_WAIT (1 << 6) /* wait comeback peer */
718e3744 728
0a486e5f 729 /* Peer status af flags (reset in bgp_stop) */
718e3744 730 u_int16_t af_sflags[AFI_MAX][SAFI_MAX];
731#define PEER_STATUS_ORF_PREFIX_SEND (1 << 0) /* prefix-list send peer */
732#define PEER_STATUS_ORF_WAIT_REFRESH (1 << 1) /* wait refresh received peer */
840fced9
DS		 733#define PEER_STATUS_PREFIX_THRESHOLD (1 << 2) /* exceed prefix-threshold */
734#define PEER_STATUS_PREFIX_LIMIT (1 << 3) /* exceed prefix-limit */
735#define PEER_STATUS_EOR_SEND (1 << 4) /* end-of-rib send to peer */
736#define PEER_STATUS_EOR_RECEIVED (1 << 5) /* end-of-rib received from peer */
e0701b79 737
718e3744 738 /* Default attribute value for the peer. */
739 u_int32_t config;
d93f7ffc
DW		 740#define PEER_CONFIG_TIMER (1 << 0) /* keepalive & holdtime */
741#define PEER_CONFIG_CONNECT (1 << 1) /* connect */
742#define PEER_CONFIG_ROUTEADV (1 << 2) /* route advertise */
8ffedcea 743
718e3744 744 u_int32_t holdtime;
745 u_int32_t keepalive;
746 u_int32_t connect;
747 u_int32_t routeadv;
748
749 /* Timer values. */
750 u_int32_t v_start;
751 u_int32_t v_connect;
752 u_int32_t v_holdtime;
753 u_int32_t v_keepalive;
718e3744 754 u_int32_t v_routeadv;
0a486e5f 755 u_int32_t v_pmax_restart;
93406d87 756 u_int32_t v_gr_restart;
718e3744 757
758 /* Threads. */
759 struct thread *t_read;
760 struct thread *t_write;
761 struct thread *t_start;
762 struct thread *t_connect;
763 struct thread *t_holdtime;
764 struct thread *t_keepalive;
718e3744 765 struct thread *t_routeadv;
0a486e5f 766 struct thread *t_pmax_restart;
93406d87 767 struct thread *t_gr_restart;
768 struct thread *t_gr_stale;
64e580a7
PJ		 769
770 /* workqueues */
771 struct work_queue *clear_node_queue;
772
718e3744 773 /* Statistics field */
774 u_int32_t open_in; /* Open message input count */
775 u_int32_t open_out; /* Open message output count */
776 u_int32_t update_in; /* Update message input count */
777 u_int32_t update_out; /* Update message ouput count */
778 time_t update_time; /* Update message received time. */
779 u_int32_t keepalive_in; /* Keepalive input count */
780 u_int32_t keepalive_out; /* Keepalive output count */
781 u_int32_t notify_in; /* Notify input count */
782 u_int32_t notify_out; /* Notify output count */
783 u_int32_t refresh_in; /* Route Refresh input count */
784 u_int32_t refresh_out; /* Route Refresh output count */
785 u_int32_t dynamic_cap_in; /* Dynamic Capability input count. */
786 u_int32_t dynamic_cap_out; /* Dynamic Capability output count. */
787
788 /* BGP state count */
789 u_int32_t established; /* Established */
790 u_int32_t dropped; /* Dropped */
791
f188f2c4
DS		 792 /* Update delay related fields */
793 u_char update_delay_over; /* When this is set, BGP is no more waiting for EOR */
794
718e3744 795 /* Syncronization list and time. */
796 struct bgp_synchronize *sync[AFI_MAX][SAFI_MAX];
797 time_t synctime;
1ba2a97a
DW		 798 time_t last_write; /* timestamp when the last msg was written */
799 time_t last_update; /* timestamp when the last UPDATE msg was written */
718e3744 800
801 /* Send prefix count. */
802 unsigned long scount[AFI_MAX][SAFI_MAX];
803
804 /* Announcement attribute hash. */
805 struct hash *hash[AFI_MAX][SAFI_MAX];
806
807 /* Notify data. */
808 struct bgp_notify notify;
809
810 /* Whole packet size to be read. */
811 unsigned long packet_size;
812
813 /* Filter structure. */
814 struct bgp_filter filter[AFI_MAX][SAFI_MAX];
815
816 /* ORF Prefix-list */
817 struct prefix_list *orf_plist[AFI_MAX][SAFI_MAX];
818
16286195
DS		 819 /* Text description of last attribute rcvd */
820 char rcvd_attr_str[BUFSIZ];
821
822 /* Track if we printed the attribute in debugs */
823 int rcvd_attr_printed;
824
718e3744 825 /* Prefix count. */
826 unsigned long pcount[AFI_MAX][SAFI_MAX];
827
828 /* Max prefix count. */
829 unsigned long pmax[AFI_MAX][SAFI_MAX];
e0701b79 830 u_char pmax_threshold[AFI_MAX][SAFI_MAX];
0a486e5f 831 u_int16_t pmax_restart[AFI_MAX][SAFI_MAX];
e0701b79 832#define MAXIMUM_PREFIX_THRESHOLD_DEFAULT 75
718e3744 833
834 /* allowas-in. */
835 char allowas_in[AFI_MAX][SAFI_MAX];
ac41b2a2 836
d93f7ffc
DW		 837 /* weight */
838 unsigned long weight[AFI_MAX][SAFI_MAX];
839
e0701b79 840 /* peer reset cause */
841 char last_reset;
842#define PEER_DOWN_RID_CHANGE 1 /* bgp router-id command */
843#define PEER_DOWN_REMOTE_AS_CHANGE 2 /* neighbor remote-as command */
844#define PEER_DOWN_LOCAL_AS_CHANGE 3 /* neighbor local-as command */
845#define PEER_DOWN_CLID_CHANGE 4 /* bgp cluster-id command */
846#define PEER_DOWN_CONFED_ID_CHANGE 5 /* bgp confederation identifier command */
847#define PEER_DOWN_CONFED_PEER_CHANGE 6 /* bgp confederation peer command */
848#define PEER_DOWN_RR_CLIENT_CHANGE 7 /* neighbor route-reflector-client command */
849#define PEER_DOWN_RS_CLIENT_CHANGE 8 /* neighbor route-server-client command */
850#define PEER_DOWN_UPDATE_SOURCE_CHANGE 9 /* neighbor update-source command */
851#define PEER_DOWN_AF_ACTIVATE 10 /* neighbor activate command */
852#define PEER_DOWN_USER_SHUTDOWN 11 /* neighbor shutdown command */
853#define PEER_DOWN_USER_RESET 12 /* clear ip bgp command */
854#define PEER_DOWN_NOTIFY_RECEIVED 13 /* notification received */
855#define PEER_DOWN_NOTIFY_SEND 14 /* notification send */
856#define PEER_DOWN_CLOSE_SESSION 15 /* tcp session close */
857#define PEER_DOWN_NEIGHBOR_DELETE 16 /* neghbor delete */
858#define PEER_DOWN_RMAP_BIND 17 /* neghbor peer-group command */
859#define PEER_DOWN_RMAP_UNBIND 18 /* no neighbor peer-group command */
860#define PEER_DOWN_CAPABILITY_CHANGE 19 /* neighbor capability command */
861#define PEER_DOWN_PASSIVE_CHANGE 20 /* neighbor passive command */
862#define PEER_DOWN_MULTIHOP_CHANGE 21 /* neighbor multihop command */
93406d87 863#define PEER_DOWN_NSF_CLOSE_SESSION 22 /* NSF tcp session close */
8ffedcea 864#define PEER_DOWN_V6ONLY_CHANGE 23 /* if-based peering v6only toggled */
7bbc6864 865#define PEER_DOWN_BFD_DOWN 24 /* BFD down */
e60480bd
DD		 866#define PEER_DOWN_IF_DOWN 25 /* Interface down */
867#define PEER_DOWN_NBR_ADDR_DEL 26 /* Peer address lost */
d6661008
DS		 868unsigned long last_reset_cause_size;
869u_char last_reset_cause[BGP_MAX_PACKET_SIZE];
e0701b79 870
ac41b2a2 871 /* The kind of route-map Flags.*/
872 u_char rmap_type;
873#define PEER_RMAP_TYPE_IN (1 << 0) /* neighbor route-map in */
874#define PEER_RMAP_TYPE_OUT (1 << 1) /* neighbor route-map out */
875#define PEER_RMAP_TYPE_NETWORK (1 << 2) /* network route-map */
876#define PEER_RMAP_TYPE_REDISTRIBUTE (1 << 3) /* redistribute route-map */
877#define PEER_RMAP_TYPE_DEFAULT (1 << 4) /* default-originate route-map */
878#define PEER_RMAP_TYPE_NOSET (1 << 5) /* not allow to set commands */
fee0f4c6 879#define PEER_RMAP_TYPE_IMPORT (1 << 6) /* neighbor route-map import */
880#define PEER_RMAP_TYPE_EXPORT (1 << 7) /* neighbor route-map export */
6410e93a 881
c43ed2e4 882 /* peer specific BFD information */
88177fe3 883 struct bfd_info *bfd_info;
04b6bdc0
DW		 884
885 /* hostname and domainname advertised by host */
886 char *hostname;
887 char *domainname;
19df7279
DL		 888
889 QOBJ_FIELDS
718e3744 890};
19df7279 891DECLARE_QOBJ_TYPE(peer)
718e3744 892
ad4cbda1 893/* Check if suppress start/restart of sessions to peer. */
894#define BGP_PEER_START_SUPPRESSED(P) \
895 (CHECK_FLAG ((P)->flags, PEER_FLAG_SHUTDOWN) \
896 || CHECK_FLAG ((P)->sflags, PEER_STATUS_PREFIX_OVERFLOW))
897
0df7c91f
PJ		 898#define PEER_PASSWORD_MINLEN (1)
899#define PEER_PASSWORD_MAXLEN (80)
900
718e3744 901/* This structure's member directly points incoming packet data
902 stream. */
903struct bgp_nlri
904{
905 /* AFI. */
906 afi_t afi;
907
908 /* SAFI. */
909 safi_t safi;
910
911 /* Pointer to NLRI byte stream. */
912 u_char *nlri;
913
914 /* Length of whole NLRI. */
915 bgp_size_t length;
916};
917
918/* BGP versions. */
919#define BGP_VERSION_4 4
718e3744 920
921/* Default BGP port number. */
922#define BGP_PORT_DEFAULT 179
923
718e3744 924/* BGP minimum message size. */
925#define BGP_MSG_OPEN_MIN_SIZE (BGP_HEADER_SIZE + 10)
926#define BGP_MSG_UPDATE_MIN_SIZE (BGP_HEADER_SIZE + 4)
927#define BGP_MSG_NOTIFY_MIN_SIZE (BGP_HEADER_SIZE + 2)
928#define BGP_MSG_KEEPALIVE_MIN_SIZE (BGP_HEADER_SIZE + 0)
929#define BGP_MSG_ROUTE_REFRESH_MIN_SIZE (BGP_HEADER_SIZE + 4)
930#define BGP_MSG_CAPABILITY_MIN_SIZE (BGP_HEADER_SIZE + 3)
931
932/* BGP message types. */
933#define BGP_MSG_OPEN 1
934#define BGP_MSG_UPDATE 2
935#define BGP_MSG_NOTIFY 3
936#define BGP_MSG_KEEPALIVE 4
937#define BGP_MSG_ROUTE_REFRESH_NEW 5
938#define BGP_MSG_CAPABILITY 6
939#define BGP_MSG_ROUTE_REFRESH_OLD 128
940
941/* BGP open optional parameter. */
942#define BGP_OPEN_OPT_AUTH 1
943#define BGP_OPEN_OPT_CAP 2
944
945/* BGP4 attribute type codes. */
946#define BGP_ATTR_ORIGIN 1
947#define BGP_ATTR_AS_PATH 2
948#define BGP_ATTR_NEXT_HOP 3
949#define BGP_ATTR_MULTI_EXIT_DISC 4
950#define BGP_ATTR_LOCAL_PREF 5
951#define BGP_ATTR_ATOMIC_AGGREGATE 6
952#define BGP_ATTR_AGGREGATOR 7
953#define BGP_ATTR_COMMUNITIES 8
954#define BGP_ATTR_ORIGINATOR_ID 9
955#define BGP_ATTR_CLUSTER_LIST 10
956#define BGP_ATTR_DPA 11
957#define BGP_ATTR_ADVERTISER 12
958#define BGP_ATTR_RCID_PATH 13
959#define BGP_ATTR_MP_REACH_NLRI 14
960#define BGP_ATTR_MP_UNREACH_NLRI 15
961#define BGP_ATTR_EXT_COMMUNITIES 16
0b2aa3a0
PJ		 962#define BGP_ATTR_AS4_PATH 17
963#define BGP_ATTR_AS4_AGGREGATOR 18
41367172 964#define BGP_ATTR_AS_PATHLIMIT 21
f4c89855 965#define BGP_ATTR_ENCAP 23
65efcfce
LB		 966#if ENABLE_BGP_VNC
967#define BGP_ATTR_VNC 255
968#endif
718e3744 969
970/* BGP update origin. */
971#define BGP_ORIGIN_IGP 0
972#define BGP_ORIGIN_EGP 1
973#define BGP_ORIGIN_INCOMPLETE 2
974
975/* BGP notify message codes. */
976#define BGP_NOTIFY_HEADER_ERR 1
977#define BGP_NOTIFY_OPEN_ERR 2
978#define BGP_NOTIFY_UPDATE_ERR 3
979#define BGP_NOTIFY_HOLD_ERR 4
980#define BGP_NOTIFY_FSM_ERR 5
981#define BGP_NOTIFY_CEASE 6
982#define BGP_NOTIFY_CAPABILITY_ERR 7
983#define BGP_NOTIFY_MAX 8
984
4b4e07d2
DT		 985#define BGP_NOTIFY_SUBCODE_UNSPECIFIC 0
986
718e3744 987/* BGP_NOTIFY_HEADER_ERR sub codes. */
988#define BGP_NOTIFY_HEADER_NOT_SYNC 1
989#define BGP_NOTIFY_HEADER_BAD_MESLEN 2
990#define BGP_NOTIFY_HEADER_BAD_MESTYPE 3
991#define BGP_NOTIFY_HEADER_MAX 4
992
993/* BGP_NOTIFY_OPEN_ERR sub codes. */
14051b36 994#define BGP_NOTIFY_OPEN_MALFORMED_ATTR 0
718e3744 995#define BGP_NOTIFY_OPEN_UNSUP_VERSION 1
996#define BGP_NOTIFY_OPEN_BAD_PEER_AS 2
997#define BGP_NOTIFY_OPEN_BAD_BGP_IDENT 3
998#define BGP_NOTIFY_OPEN_UNSUP_PARAM 4
999#define BGP_NOTIFY_OPEN_AUTH_FAILURE 5
1000#define BGP_NOTIFY_OPEN_UNACEP_HOLDTIME 6
1001#define BGP_NOTIFY_OPEN_UNSUP_CAPBL 7
1002#define BGP_NOTIFY_OPEN_MAX 8
1003
1004/* BGP_NOTIFY_UPDATE_ERR sub codes. */
1005#define BGP_NOTIFY_UPDATE_MAL_ATTR 1
1006#define BGP_NOTIFY_UPDATE_UNREC_ATTR 2
1007#define BGP_NOTIFY_UPDATE_MISS_ATTR 3
1008#define BGP_NOTIFY_UPDATE_ATTR_FLAG_ERR 4
1009#define BGP_NOTIFY_UPDATE_ATTR_LENG_ERR 5
1010#define BGP_NOTIFY_UPDATE_INVAL_ORIGIN 6
1011#define BGP_NOTIFY_UPDATE_AS_ROUTE_LOOP 7
1012#define BGP_NOTIFY_UPDATE_INVAL_NEXT_HOP 8
1013#define BGP_NOTIFY_UPDATE_OPT_ATTR_ERR 9
1014#define BGP_NOTIFY_UPDATE_INVAL_NETWORK 10
1015#define BGP_NOTIFY_UPDATE_MAL_AS_PATH 11
1016#define BGP_NOTIFY_UPDATE_MAX 12
1017
4b4e07d2 1018/* BGP_NOTIFY_CEASE sub codes (RFC 4486). */
718e3744 1019#define BGP_NOTIFY_CEASE_MAX_PREFIX 1
1020#define BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN 2
1021#define BGP_NOTIFY_CEASE_PEER_UNCONFIG 3
1022#define BGP_NOTIFY_CEASE_ADMIN_RESET 4
1023#define BGP_NOTIFY_CEASE_CONNECT_REJECT 5
1024#define BGP_NOTIFY_CEASE_CONFIG_CHANGE 6
545acafb 1025#define BGP_NOTIFY_CEASE_COLLISION_RESOLUTION 7
1026#define BGP_NOTIFY_CEASE_OUT_OF_RESOURCE 8
1027#define BGP_NOTIFY_CEASE_MAX 9
718e3744 1028
1029/* BGP_NOTIFY_CAPABILITY_ERR sub codes (draft-ietf-idr-dynamic-cap-02). */
1030#define BGP_NOTIFY_CAPABILITY_INVALID_ACTION 1
1031#define BGP_NOTIFY_CAPABILITY_INVALID_LENGTH 2
1032#define BGP_NOTIFY_CAPABILITY_MALFORMED_CODE 3
1033#define BGP_NOTIFY_CAPABILITY_MAX 4
1034
1035/* BGP finite state machine status. */
1036#define Idle 1
1037#define Connect 2
1038#define Active 3
1039#define OpenSent 4
1040#define OpenConfirm 5
1041#define Established 6
ca058a30
PJ		 1042#define Clearing 7
1043#define Deleted 8
1044#define BGP_STATUS_MAX 9
718e3744 1045
1046/* BGP finite state machine events. */
1047#define BGP_Start 1
1048#define BGP_Stop 2
1049#define TCP_connection_open 3
1050#define TCP_connection_closed 4
1051#define TCP_connection_open_failed 5
1052#define TCP_fatal_error 6
1053#define ConnectRetry_timer_expired 7
1054#define Hold_Timer_expired 8
1055#define KeepAlive_timer_expired 9
1056#define Receive_OPEN_message 10
1057#define Receive_KEEPALIVE_message 11
1058#define Receive_UPDATE_message 12
1059#define Receive_NOTIFICATION_message 13
ca058a30
PJ		 1060#define Clearing_Completed 14
1061#define BGP_EVENTS_MAX 15
718e3744 1062
1063/* BGP timers default value. */
5ca5f1c8 1064#define BGP_INIT_START_TIMER 1
3fd8c527
DW		 1065#define BGP_DEFAULT_HOLDTIME 9
1066#define BGP_DEFAULT_KEEPALIVE 3
12179ba3 1067#define BGP_DEFAULT_EBGP_ROUTEADV 0
1670355a 1068#define BGP_DEFAULT_IBGP_ROUTEADV 0
23a1f277 1069#define BGP_DEFAULT_CONNECT_RETRY 10
718e3744 1070
1071/* BGP default local preference. */
1072#define BGP_DEFAULT_LOCAL_PREF 100
1073
3f9c7369
DS		 1074/* BGP default subgroup packet queue max . */
1075#define BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX 40
1076
538621f2 1077/* BGP graceful restart */
1078#define BGP_DEFAULT_RESTART_TIME 120
1079#define BGP_DEFAULT_STALEPATH_TIME 360
1080
42e6d745
DO		 1081/* RFC4364 */
1082#define SAFI_MPLS_LABELED_VPN 128
65efcfce 1083#define BGP_SAFI_VPN 128
718e3744 1084
718e3744 1085/* BGP uptime string length. */
1086#define BGP_UPTIME_LEN 25
1087
1088/* Default configuration settings for bgpd. */
1089#define BGP_VTY_PORT 2605
718e3744 1090#define BGP_DEFAULT_CONFIG "bgpd.conf"
1091
1092/* Check AS path loop when we send NLRI. */
1093/* #define BGP_SEND_ASPATH_CHECK */
1094
f14e6fdb
DS		 1095/* BGP Dynamic Neighbors feature */
1096#define BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT 100
1097#define BGP_DYNAMIC_NEIGHBORS_LIMIT_MIN 1
1098#define BGP_DYNAMIC_NEIGHBORS_LIMIT_MAX 5000
1099
718e3744 1100/* Flag for peer_clear_soft(). */
1101enum bgp_clear_type
1102{
1103 BGP_CLEAR_SOFT_NONE,
1104 BGP_CLEAR_SOFT_OUT,
1105 BGP_CLEAR_SOFT_IN,
1106 BGP_CLEAR_SOFT_BOTH,
2a3d5731 1107 BGP_CLEAR_SOFT_IN_ORF_PREFIX
718e3744 1108};
1109
1110/* Macros. */
1111#define BGP_INPUT(P) ((P)->ibuf)
1112#define BGP_INPUT_PNT(P) (STREAM_PNT(BGP_INPUT(P)))
6aa136f1
VS		 1113#define BGP_IS_VALID_STATE_FOR_NOTIF(S)\
1114 (((S) == OpenSent) || ((S) == OpenConfirm) || ((S) == Established))
718e3744 1115
718e3744 1116/* BGP error codes. */
1117#define BGP_SUCCESS 0
1118#define BGP_ERR_INVALID_VALUE -1
1119#define BGP_ERR_INVALID_FLAG -2
1120#define BGP_ERR_INVALID_AS -3
1121#define BGP_ERR_INVALID_BGP -4
1122#define BGP_ERR_PEER_GROUP_MEMBER -5
1123#define BGP_ERR_MULTIPLE_INSTANCE_USED -6
c8560b44
DW		 1124#define BGP_ERR_PEER_GROUP_NO_REMOTE_AS -7
1125#define BGP_ERR_PEER_GROUP_CANT_CHANGE -8
1126#define BGP_ERR_PEER_GROUP_MISMATCH -9
1127#define BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT -10
1128#define BGP_ERR_MULTIPLE_INSTANCE_NOT_SET -11
1129#define BGP_ERR_AS_MISMATCH -12
1130#define BGP_ERR_PEER_FLAG_CONFLICT -13
1131#define BGP_ERR_PEER_GROUP_SHUTDOWN -14
1132#define BGP_ERR_PEER_FILTER_CONFLICT -15
1133#define BGP_ERR_NOT_INTERNAL_PEER -16
1134#define BGP_ERR_REMOVE_PRIVATE_AS -17
1135#define BGP_ERR_AF_UNCONFIGURED -18
1136#define BGP_ERR_SOFT_RECONFIG_UNCONFIGURED -19
1137#define BGP_ERR_INSTANCE_MISMATCH -20
1138#define BGP_ERR_LOCAL_AS_ALLOWED_ONLY_FOR_EBGP -21
1139#define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS -22
1140#define BGP_ERR_TCPSIG_FAILED -23
1141#define BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK -24
1142#define BGP_ERR_NO_IBGP_WITH_TTLHACK -25
1143#define BGP_ERR_NO_INTERFACE_CONFIG -26
1144#define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS_REMOTE_AS -27
1145#define BGP_ERR_AS_OVERRIDE -28
1146#define BGP_ERR_INVALID_DYNAMIC_NEIGHBORS_LIMIT -29
1147#define BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_EXISTS -30
1148#define BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_NOT_FOUND -31
1149#define BGP_ERR_INVALID_FOR_DYNAMIC_PEER -32
1150#define BGP_ERR_MAX -33
63fa10b5 1151#define BGP_ERR_INVALID_FOR_DIRECT_PEER -34
718e3744 1152
3f9c7369
DS		 1153/*
1154 * Enumeration of different policy kinds a peer can be configured with.
1155 */
1156typedef enum
1157{
1158 BGP_POLICY_ROUTE_MAP,
1159 BGP_POLICY_FILTER_LIST,
1160 BGP_POLICY_PREFIX_LIST,
1161 BGP_POLICY_DISTRIBUTE_LIST,
1162} bgp_policy_type_e;
1163
718e3744 1164extern struct bgp_master *bm;
1165
718e3744 1166/* Prototypes. */
94f2b392 1167extern void bgp_terminate (void);
1168extern void bgp_reset (void);
65957886 1169extern time_t bgp_clock (void);
94f2b392 1170extern void bgp_zclient_reset (void);
1171extern int bgp_nexthop_set (union sockunion *, union sockunion *,
718e3744 1172 struct bgp_nexthop *, struct peer *);
94f2b392 1173extern struct bgp *bgp_get_default (void);
1174extern struct bgp *bgp_lookup (as_t, const char *);
1175extern struct bgp *bgp_lookup_by_name (const char *);
6aeb9e78 1176extern struct bgp *bgp_lookup_by_vrf_id (vrf_id_t);
94f2b392 1177extern struct peer *peer_lookup (struct bgp *, union sockunion *);
a80beece 1178extern struct peer *peer_lookup_by_conf_if (struct bgp *, const char *);
04b6bdc0 1179extern struct peer *peer_lookup_by_hostname(struct bgp *, const char *);
a80beece 1180extern void bgp_peer_conf_if_to_su_update (struct peer *);
ffd0c037 1181extern int peer_group_listen_range_del(struct peer_group *, struct prefix *);
94f2b392 1182extern struct peer_group *peer_group_lookup (struct bgp *, const char *);
1183extern struct peer_group *peer_group_get (struct bgp *, const char *);
f14e6fdb
DS		 1184extern struct peer *peer_create_bind_dynamic_neighbor (struct bgp *,
1185 union sockunion *, struct peer_group *);
1186extern struct prefix *peer_group_lookup_dynamic_neighbor_range (
1187 struct peer_group *, struct prefix *);
1188extern struct peer_group *peer_group_lookup_dynamic_neighbor (struct bgp *,
1189 struct prefix *, struct prefix **);
1190extern struct peer *peer_lookup_dynamic_neighbor (struct bgp *,
1191 union sockunion *);
1192extern void peer_drop_dynamic_neighbor (struct peer *);
28066f4b
DS		 1193
1194/*
1195 * Peers are incredibly easy to memory leak
1196 * due to the various ways that they are actually used
1197 * Provide some functionality to debug locks and unlocks
1198 */
1199extern struct peer *peer_lock_with_caller(const char *, struct peer *);
1200extern struct peer *peer_unlock_with_caller(const char *, struct peer *);
1201#define peer_unlock(A) peer_unlock_with_caller(__FUNCTION__, (A))
1202#define peer_lock(B) peer_lock_with_caller(__FUNCTION__, (B))
1203
6d85b15b 1204extern bgp_peer_sort_t peer_sort (struct peer *peer);
94f2b392 1205extern int peer_active (struct peer *);
1206extern int peer_active_nego (struct peer *);
06370dac 1207extern void bgp_recalculate_all_bestpaths (struct bgp *bgp);
a80beece 1208extern struct peer *peer_create(union sockunion *, const char *, struct bgp *,
f813b13b 1209 as_t, as_t, int, afi_t, safi_t, struct peer_group *);
94f2b392 1210extern struct peer *peer_create_accept (struct bgp *);
1ff9a340 1211extern void peer_xfer_config (struct peer *dst, struct peer *src);
856ca177
MS		 1212extern char *peer_uptime (time_t, char *, size_t, u_char, json_object *);
1213
94f2b392 1214extern int bgp_config_write (struct vty *);
1215extern void bgp_config_write_family_header (struct vty *, afi_t, safi_t, int *);
6b0655a2 1216
94f2b392 1217extern void bgp_master_init (void);
718e3744 1218
94f2b392 1219extern void bgp_init (void);
1220extern void bgp_route_map_init (void);
4c48cf63 1221extern void bgp_session_reset (struct peer *);
718e3744 1222
94f2b392 1223extern int bgp_option_set (int);
1224extern int bgp_option_unset (int);
1225extern int bgp_option_check (int);
718e3744 1226
ad4cbda1 1227extern int bgp_get (struct bgp **, as_t *, const char *, enum bgp_instance_type);
6aeb9e78
DS		 1228extern void bgp_instance_up (struct bgp *);
1229extern void bgp_instance_down (struct bgp *);
94f2b392 1230extern int bgp_delete (struct bgp *);
718e3744 1231
94f2b392 1232extern int bgp_flag_set (struct bgp *, int);
1233extern int bgp_flag_unset (struct bgp *, int);
1234extern int bgp_flag_check (struct bgp *, int);
718e3744 1235
0088b5dc
SH		 1236extern void bgp_lock (struct bgp *);
1237extern void bgp_unlock (struct bgp *);
1238
0e6cb743
DL		 1239extern void bgp_router_id_zebra_bump (vrf_id_t, const struct prefix*);
1240extern int bgp_router_id_static_set (struct bgp *, struct in_addr);
718e3744 1241
94f2b392 1242extern int bgp_cluster_id_set (struct bgp *, struct in_addr *);
1243extern int bgp_cluster_id_unset (struct bgp *);
718e3744 1244
94f2b392 1245extern int bgp_confederation_id_set (struct bgp *, as_t);
1246extern int bgp_confederation_id_unset (struct bgp *);
1247extern int bgp_confederation_peers_check (struct bgp *, as_t);
718e3744 1248
94f2b392 1249extern int bgp_confederation_peers_add (struct bgp *, as_t);
1250extern int bgp_confederation_peers_remove (struct bgp *, as_t);
718e3744 1251
4760600f 1252extern int bgp_timers_set (struct bgp *, u_int32_t keepalive, u_int32_t holdtime);
94f2b392 1253extern int bgp_timers_unset (struct bgp *);
718e3744 1254
94f2b392 1255extern int bgp_default_local_preference_set (struct bgp *, u_int32_t);
1256extern int bgp_default_local_preference_unset (struct bgp *);
718e3744 1257
3f9c7369
DS		 1258extern int bgp_default_subgroup_pkt_queue_max_set (struct bgp *bgp, u_int32_t);
1259extern int bgp_default_subgroup_pkt_queue_max_unset (struct bgp *bgp);
1260
f14e6fdb
DS		 1261extern int bgp_listen_limit_set (struct bgp *, int);
1262extern int bgp_listen_limit_unset (struct bgp *);
1263
f188f2c4
DS		 1264extern int bgp_update_delay_active (struct bgp *);
1265extern int bgp_update_delay_configured (struct bgp *);
0299c004 1266extern void peer_as_change (struct peer *, as_t, int);
a80beece 1267extern int peer_remote_as (struct bgp *, union sockunion *,const char *, as_t *,
0299c004
DS		 1268 int, afi_t, safi_t);
1269extern int peer_group_remote_as (struct bgp *, const char *, as_t *, int);
94f2b392 1270extern int peer_delete (struct peer *peer);
1271extern int peer_group_delete (struct peer_group *);
1272extern int peer_group_remote_as_delete (struct peer_group *);
f14e6fdb 1273extern int peer_group_listen_range_add(struct peer_group *, struct prefix *);
718e3744 1274
94f2b392 1275extern int peer_activate (struct peer *, afi_t, safi_t);
1276extern int peer_deactivate (struct peer *, afi_t, safi_t);
4760600f 1277extern int peer_afc_set (struct peer *, afi_t, safi_t, int);
718e3744 1278
a80beece 1279extern int peer_group_bind (struct bgp *, union sockunion *, struct peer *,
c8560b44
DW		 1280 struct peer_group *, as_t *);
1281extern int peer_group_unbind (struct bgp *, struct peer *, struct peer_group *);
718e3744 1282
94f2b392 1283extern int peer_flag_set (struct peer *, u_int32_t);
1284extern int peer_flag_unset (struct peer *, u_int32_t);
718e3744 1285
94f2b392 1286extern int peer_af_flag_set (struct peer *, afi_t, safi_t, u_int32_t);
1287extern int peer_af_flag_unset (struct peer *, afi_t, safi_t, u_int32_t);
1288extern int peer_af_flag_check (struct peer *, afi_t, safi_t, u_int32_t);
718e3744 1289
94f2b392 1290extern int peer_ebgp_multihop_set (struct peer *, int);
1291extern int peer_ebgp_multihop_unset (struct peer *);
c43ed2e4 1292extern int is_ebgp_multihop_configured (struct peer *peer);
718e3744 1293
4760600f 1294extern int peer_description_set (struct peer *, const char *);
94f2b392 1295extern int peer_description_unset (struct peer *);
718e3744 1296
94f2b392 1297extern int peer_update_source_if_set (struct peer *, const char *);
4760600f 1298extern int peer_update_source_addr_set (struct peer *, const union sockunion *);
94f2b392 1299extern int peer_update_source_unset (struct peer *);
718e3744 1300
94f2b392 1301extern int peer_default_originate_set (struct peer *, afi_t, safi_t, const char *);
1302extern int peer_default_originate_unset (struct peer *, afi_t, safi_t);
718e3744 1303
94f2b392 1304extern int peer_port_set (struct peer *, u_int16_t);
1305extern int peer_port_unset (struct peer *);
718e3744 1306
d93f7ffc
DW		 1307extern int peer_weight_set (struct peer *, afi_t, safi_t, u_int16_t);
1308extern int peer_weight_unset (struct peer *, afi_t, safi_t);
718e3744 1309
4760600f 1310extern int peer_timers_set (struct peer *, u_int32_t keepalive, u_int32_t holdtime);
94f2b392 1311extern int peer_timers_unset (struct peer *);
718e3744 1312
94f2b392 1313extern int peer_timers_connect_set (struct peer *, u_int32_t);
1314extern int peer_timers_connect_unset (struct peer *);
718e3744 1315
94f2b392 1316extern int peer_advertise_interval_set (struct peer *, u_int32_t);
1317extern int peer_advertise_interval_unset (struct peer *);
718e3744 1318
ffd0c037
DS		 1319extern void peer_interface_set (struct peer *, const char *);
1320extern void peer_interface_unset (struct peer *);
718e3744 1321
94f2b392 1322extern int peer_distribute_set (struct peer *, afi_t, safi_t, int, const char *);
1323extern int peer_distribute_unset (struct peer *, afi_t, safi_t, int);
718e3744 1324
aac9ef6c 1325extern int peer_allowas_in_set (struct peer *, afi_t, safi_t, int, int);
94f2b392 1326extern int peer_allowas_in_unset (struct peer *, afi_t, safi_t);
718e3744 1327
9d3f9705 1328extern int peer_local_as_set (struct peer *, as_t, int, int);
94f2b392 1329extern int peer_local_as_unset (struct peer *);
718e3744 1330
94f2b392 1331extern int peer_prefix_list_set (struct peer *, afi_t, safi_t, int, const char *);
1332extern int peer_prefix_list_unset (struct peer *, afi_t, safi_t, int);
718e3744 1333
94f2b392 1334extern int peer_aslist_set (struct peer *, afi_t, safi_t, int, const char *);
1335extern int peer_aslist_unset (struct peer *,afi_t, safi_t, int);
718e3744 1336
94f2b392 1337extern int peer_route_map_set (struct peer *, afi_t, safi_t, int, const char *);
1338extern int peer_route_map_unset (struct peer *, afi_t, safi_t, int);
718e3744 1339
94f2b392 1340extern int peer_unsuppress_map_set (struct peer *, afi_t, safi_t, const char *);
0df7c91f
PJ		 1341
1342extern int peer_password_set (struct peer *, const char *);
1343extern int peer_password_unset (struct peer *);
1344
94f2b392 1345extern int peer_unsuppress_map_unset (struct peer *, afi_t, safi_t);
718e3744 1346
94f2b392 1347extern int peer_maximum_prefix_set (struct peer *, afi_t, safi_t, u_int32_t, u_char, int, u_int16_t);
1348extern int peer_maximum_prefix_unset (struct peer *, afi_t, safi_t);
718e3744 1349
1ff9a340 1350extern int peer_clear (struct peer *, struct listnode **);
94f2b392 1351extern int peer_clear_soft (struct peer *, afi_t, safi_t, enum bgp_clear_type);
93406d87 1352
fa411a21
NH		 1353extern int peer_ttl_security_hops_set (struct peer *, int);
1354extern int peer_ttl_security_hops_unset (struct peer *);
1355
518f0eb1
DS		 1356extern int bgp_route_map_update_timer (struct thread *thread);
1357extern void bgp_route_map_terminate(void);
16286195
DS		 1358
1359extern int peer_cmp (struct peer *p1, struct peer *p2);
3f9c7369
DS		 1360
1361extern struct peer_af * peer_af_create (struct peer *, afi_t, safi_t);
1362extern struct peer_af * peer_af_find (struct peer *, afi_t, safi_t);
1363extern int peer_af_delete (struct peer *, afi_t, safi_t);
1364
ffd0c037
DS		 1365extern void bgp_close(void);
1366
3f9c7369
DS		 1367static inline int
1368afindex (afi_t afi, safi_t safi)
1369{
1370 switch (afi)
1371 {
1372 case AFI_IP:
1373 switch (safi)
1374 {
1375 case SAFI_UNICAST:
1376 return BGP_AF_IPV4_UNICAST;
1377 break;
1378 case SAFI_MULTICAST:
1379 return BGP_AF_IPV4_MULTICAST;
1380 break;
1381 case SAFI_MPLS_VPN:
1382 return BGP_AF_IPV4_VPN;
1383 break;
587ff0fd
LB		 1384 case SAFI_ENCAP:
1385 return BGP_AF_IPV4_ENCAP;
1386 break;
3f9c7369
DS		 1387 default:
1388 return BGP_AF_MAX;
1389 break;
1390 }
1391 break;
1392 case AFI_IP6:
1393 switch (safi)
1394 {
1395 case SAFI_UNICAST:
1396 return BGP_AF_IPV6_UNICAST;
1397 break;
1398 case SAFI_MULTICAST:
1399 return BGP_AF_IPV6_MULTICAST;
1400 break;
6407da5a 1401 case SAFI_MPLS_VPN:
1402 return BGP_AF_IPV6_VPN;
1403 break;
587ff0fd
LB		 1404 case SAFI_ENCAP:
1405 return BGP_AF_IPV6_ENCAP;
1406 break;
3f9c7369
DS		 1407 default:
1408 return BGP_AF_MAX;
1409 break;
1410 }
1411 break;
1412 default:
1413 return BGP_AF_MAX;
1414 break;
1415 }
1416}
1417
c8560b44 1418/* If the peer is not a peer-group but is bound to a peer-group return 1 */
3f9c7369
DS		 1419static inline int
1420peer_group_active (struct peer *peer)
1421{
c8560b44 1422 if (!CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP) && peer->group)
3f9c7369
DS		 1423 return 1;
1424 return 0;
1425}
1426
1427/* If peer is negotiated at least one address family return 1. */
1428static inline int
1429peer_afi_active_nego (const struct peer *peer, afi_t afi)
1430{
1431 if (peer->afc_nego[afi][SAFI_UNICAST]
1432 || peer->afc_nego[afi][SAFI_MULTICAST]
587ff0fd
LB		 1433 || peer->afc_nego[afi][SAFI_MPLS_VPN]
1434 || peer->afc_nego[afi][SAFI_ENCAP])
3f9c7369
DS		 1435 return 1;
1436 return 0;
1437}
1438
f14e6fdb
DS		 1439/* If at least one address family activated for group, return 1. */
1440static inline int
1441peer_group_af_configured (struct peer_group *group)
1442{
1443 struct peer *peer = group->conf;
1444
1445 if (peer->afc[AFI_IP][SAFI_UNICAST]
1446 || peer->afc[AFI_IP][SAFI_MULTICAST]
1447 || peer->afc[AFI_IP][SAFI_MPLS_VPN]
587ff0fd 1448 || peer->afc[AFI_IP][SAFI_ENCAP]
f14e6fdb 1449 || peer->afc[AFI_IP6][SAFI_UNICAST]
6407da5a 1450 || peer->afc[AFI_IP6][SAFI_MULTICAST]
587ff0fd
LB		 1451 || peer->afc[AFI_IP6][SAFI_MPLS_VPN]
1452 || peer->afc[AFI_IP6][SAFI_ENCAP])
f14e6fdb
DS		 1453 return 1;
1454 return 0;
1455}
1456
3f9c7369
DS		 1457static inline char *
1458timestamp_string (time_t ts)
1459{
3f9c7369
DS		 1460 time_t tbuf;
1461 tbuf = time(NULL) - (bgp_clock() - ts);
1462 return ctime(&tbuf);
3f9c7369
DS		 1463}
1464
1465static inline int
1466peer_established (struct peer *peer)
1467{
1468 if (peer->status == Established)
1469 return 1;
1470 return 0;
1471}
1472
f14e6fdb
DS		 1473static inline int
1474peer_dynamic_neighbor (struct peer *peer)
1475{
1476 return (CHECK_FLAG(peer->flags, PEER_FLAG_DYNAMIC_NEIGHBOR)) ? 1 : 0;
1477}
1478
8a92a8a0
DS		 1479/*
1480 * Currently supporting RFC 5549 for AFI_IP/SAFI_UNICAST only.
1481 *
1482 * Note: When other RFC-5549 applicable SAFIs to be supported, that should
1483 * come as an argument to this routine.
1484 */
1485static inline int
1486peer_cap_enhe (struct peer *peer)
1487{
1488 return (CHECK_FLAG(peer->af_cap[AFI_IP][SAFI_UNICAST], PEER_CAP_ENHE_AF_NEGO));
1489}
1490
d1be1f08 1491/* Lookup VRF for BGP instance based on its type. */
1492static inline struct vrf *
1493bgp_vrf_lookup_by_instance_type (struct bgp *bgp)
1494{
1495 struct vrf *vrf;
1496
1497 if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)
5f3d1bdf 1498 vrf = vrf_lookup_by_id (VRF_DEFAULT);
d1be1f08 1499 else if (bgp->inst_type == BGP_INSTANCE_TYPE_VRF)
1500 vrf = vrf_lookup_by_name (bgp->name);
1501 else
1502 vrf = NULL;
1503
1504 return vrf;
1505}
1506
1507/* Link BGP instance to VRF. */
1508static inline void
1509bgp_vrf_link (struct bgp *bgp, struct vrf *vrf)
1510{
1511 bgp->vrf_id = vrf->vrf_id;
59ecefe2 1512 if (vrf->info != (void *)bgp)
1513 {
1514 bgp_lock (bgp);
1515 vrf->info = (void *)bgp;
1516 }
d1be1f08 1517}
1518
1519/* Unlink BGP instance from VRF. */
1520static inline void
1521bgp_vrf_unlink (struct bgp *bgp, struct vrf *vrf)
1522{
59ecefe2 1523 if (vrf->info == (void *)bgp)
1524 {
1525 vrf->info = NULL;
1526 bgp_unlock (bgp);
1527 }
5c81a5f3 1528 bgp->vrf_id = VRF_UNKNOWN;
d1be1f08 1529}
1530
eb117f29 1531extern void bgp_update_redist_vrf_bitmaps (struct bgp*, vrf_id_t);
65efcfce
LB		 1532
1533/* For benefit of rfapi */
1534extern struct peer * peer_new (struct bgp *bgp);
1535
00d252cb 1536#endif /* _QUAGGA_BGPD_H */
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