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Merge pull request #760 from opensourcerouting/rpm-non-redhat-fix
[mirror_frr.git] / bgpd / bgpd.h
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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
856ca177 24#include "lib/json.h"
6aeb9e78
DS		 25#include "vrf.h"
26
718e3744 27/* For union sockunion. */
3f9c7369 28#include "queue.h"
718e3744 29#include "sockunion.h"
518f0eb1 30#include "routemap.h"
ffd0c037 31#include "linklist.h"
8efe88ea 32#include "defaults.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 */
718e3744 124};
125
73ac8160
DS		 126/* BGP route-map structure. */
127struct bgp_rmap
128{
129 char *name;
130 struct route_map *map;
131};
132
7c8ff89e
DS		 133struct bgp_redist
134{
135 u_short instance;
136
137 /* BGP redistribute metric configuration. */
138 u_char redist_metric_flag;
139 u_int32_t redist_metric;
140
141 /* BGP redistribute route-map. */
142 struct bgp_rmap rmap;
143};
144
ad4cbda1 145/*
146 * Type of 'struct bgp'.
147 * - Default: The default instance
148 * - VRF: A specific (non-default) VRF
149 * - View: An instance used for route exchange
150 * The "default" instance is treated separately to simplify the code. Note
151 * that if deployed in a Multi-VRF environment, it may not exist.
152 */
153enum bgp_instance_type
154{
155 BGP_INSTANCE_TYPE_DEFAULT,
156 BGP_INSTANCE_TYPE_VRF,
157 BGP_INSTANCE_TYPE_VIEW
158};
159
718e3744 160/* BGP instance structure. */
161struct bgp
162{
163 /* AS number of this BGP instance. */
164 as_t as;
165
166 /* Name of this BGP instance. */
167 char *name;
6aeb9e78 168
ad4cbda1 169 /* Type of instance and VRF id. */
170 enum bgp_instance_type inst_type;
6aeb9e78 171 vrf_id_t vrf_id;
200df115 172
0088b5dc
SH		 173 /* Reference count to allow peer_delete to finish after bgp_delete */
174 int lock;
175
718e3744 176 /* Self peer. */
177 struct peer *peer_self;
178
179 /* BGP peer. */
180 struct list *peer;
dd793e4a 181 struct hash *peerhash;
718e3744 182
183 /* BGP peer group. */
184 struct list *group;
185
f14e6fdb
DS		 186 /* The maximum number of BGP dynamic neighbors that can be created */
187 int dynamic_neighbors_limit;
188
189 /* The current number of BGP dynamic neighbors */
190 int dynamic_neighbors_count;
191
3f9c7369
DS		 192 struct hash *update_groups[BGP_AF_MAX];
193
194 /*
195 * Global statistics for update groups.
196 */
197 struct {
198 u_int32_t join_events;
199 u_int32_t prune_events;
200 u_int32_t merge_events;
201 u_int32_t split_events;
202 u_int32_t updgrp_switch_events;
203 u_int32_t peer_refreshes_combined;
204 u_int32_t adj_count;
205 u_int32_t merge_checks_triggered;
206
207 u_int32_t updgrps_created;
208 u_int32_t updgrps_deleted;
209 u_int32_t subgrps_created;
210 u_int32_t subgrps_deleted;
211 } update_group_stats;
212
718e3744 213 /* BGP configuration. */
214 u_int16_t config;
c2d58d6d 215#define BGP_CONFIG_CLUSTER_ID (1 << 0)
216#define BGP_CONFIG_CONFEDERATION (1 << 1)
718e3744 217
218 /* BGP router identifier. */
219 struct in_addr router_id;
18a6dce6 220 struct in_addr router_id_static;
6aeb9e78 221 struct in_addr router_id_zebra;
718e3744 222
223 /* BGP route reflector cluster ID. */
224 struct in_addr cluster_id;
225
226 /* BGP confederation information. */
227 as_t confed_id;
228 as_t *confed_peers;
229 int confed_peers_cnt;
230
abc920f8
DS		 231 struct thread *t_startup; /* start-up timer on only once at the beginning */
232
233 u_int32_t v_maxmed_onstartup; /* Duration of max-med on start-up */
234#define BGP_MAXMED_ONSTARTUP_UNCONFIGURED 0 /* 0 means off, its the default */
235 u_int32_t maxmed_onstartup_value; /* Max-med value when active on start-up */
236 struct thread *t_maxmed_onstartup; /* non-null when max-med onstartup is on */
237 u_char maxmed_onstartup_over; /* Flag to make it effective only once */
238
239 u_char v_maxmed_admin; /* 1/0 if max-med administrative is on/off */
240#define BGP_MAXMED_ADMIN_UNCONFIGURED 0 /* Off by default */
241 u_int32_t maxmed_admin_value; /* Max-med value when administrative in on */
242#define BGP_MAXMED_VALUE_DEFAULT 4294967294 /* Maximum by default */
243
244 u_char maxmed_active; /* 1/0 if max-med is active or not */
245 u_int32_t maxmed_value; /* Max-med value when its active */
fe7d2a48 246
f188f2c4
DS		 247 /* BGP update delay on startup */
248 struct thread *t_update_delay;
249 struct thread *t_establish_wait;
250 u_char update_delay_over;
4a16ae86
DS		 251 u_char main_zebra_update_hold;
252 u_char main_peers_update_hold;
f188f2c4
DS		 253 u_int16_t v_update_delay;
254 u_int16_t v_establish_wait;
255 char update_delay_begin_time[64];
256 char update_delay_end_time[64];
4a16ae86
DS		 257 char update_delay_zebra_resume_time[64];
258 char update_delay_peers_resume_time[64];
f188f2c4
DS		 259 u_int32_t established;
260 u_int32_t restarted_peers;
261 u_int32_t implicit_eors;
262 u_int32_t explicit_eors;
263#define BGP_UPDATE_DELAY_DEF 0
264#define BGP_UPDATE_DELAY_MIN 0
265#define BGP_UPDATE_DELAY_MAX 3600
266
718e3744 267 /* BGP flags. */
8bd9d948 268 u_int32_t flags;
718e3744 269#define BGP_FLAG_ALWAYS_COMPARE_MED (1 << 0)
270#define BGP_FLAG_DETERMINISTIC_MED (1 << 1)
271#define BGP_FLAG_MED_MISSING_AS_WORST (1 << 2)
272#define BGP_FLAG_MED_CONFED (1 << 3)
273#define BGP_FLAG_NO_DEFAULT_IPV4 (1 << 4)
274#define BGP_FLAG_NO_CLIENT_TO_CLIENT (1 << 5)
275#define BGP_FLAG_ENFORCE_FIRST_AS (1 << 6)
276#define BGP_FLAG_COMPARE_ROUTER_ID (1 << 7)
277#define BGP_FLAG_ASPATH_IGNORE (1 << 8)
278#define BGP_FLAG_IMPORT_CHECK (1 << 9)
279#define BGP_FLAG_NO_FAST_EXT_FAILOVER (1 << 10)
848973c7 280#define BGP_FLAG_LOG_NEIGHBOR_CHANGES (1 << 11)
538621f2 281#define BGP_FLAG_GRACEFUL_RESTART (1 << 12)
6811845b 282#define BGP_FLAG_ASPATH_CONFED (1 << 13)
2fdd455c 283#define BGP_FLAG_ASPATH_MULTIPATH_RELAX (1 << 14)
8bd9d948 284#define BGP_FLAG_RR_ALLOW_OUTBOUND_POLICY (1 << 15)
907f92c8 285#define BGP_FLAG_DISABLE_NH_CONNECTED_CHK (1 << 16)
219178b6 286#define BGP_FLAG_MULTIPATH_RELAX_AS_SET (1 << 17)
078430f6 287#define BGP_FLAG_FORCE_STATIC_PROCESS (1 << 18)
5623e905 288#define BGP_FLAG_SHOW_HOSTNAME (1 << 19)
718e3744 289
290 /* BGP Per AF flags */
291 u_int16_t af_flags[AFI_MAX][SAFI_MAX];
292#define BGP_CONFIG_DAMPENING (1 << 0)
293
6aeb9e78
DS		 294 /* Route table for next-hop lookup cache. */
295 struct bgp_table *nexthop_cache_table[AFI_MAX];
296
297 /* Route table for import-check */
298 struct bgp_table *import_check_table[AFI_MAX];
299
300 struct bgp_table *connected_table[AFI_MAX];
301
302 struct hash *address_hash;
303
718e3744 304 /* Static route configuration. */
305 struct bgp_table *route[AFI_MAX][SAFI_MAX];
306
307 /* Aggregate address configuration. */
308 struct bgp_table *aggregate[AFI_MAX][SAFI_MAX];
309
310 /* BGP routing information base. */
311 struct bgp_table *rib[AFI_MAX][SAFI_MAX];
312
73ac8160
DS		 313 /* BGP table route-map. */
314 struct bgp_rmap table_map[AFI_MAX][SAFI_MAX];
315
718e3744 316 /* BGP redistribute configuration. */
7c8ff89e 317 struct list *redist[AFI_MAX][ZEBRA_ROUTE_MAX];
718e3744 318
0de4848d
DS		 319 /* timer to re-evaluate neighbor default-originate route-maps */
320 struct thread *t_rmap_def_originate_eval;
321#define RMAP_DEFAULT_ORIGINATE_EVAL_TIMER 5
322
718e3744 323 /* BGP distance configuration. */
734b349e
MZ		 324 u_char distance_ebgp[AFI_MAX][SAFI_MAX];
325 u_char distance_ibgp[AFI_MAX][SAFI_MAX];
326 u_char distance_local[AFI_MAX][SAFI_MAX];
718e3744 327
328 /* BGP default local-preference. */
329 u_int32_t default_local_pref;
330
3f9c7369
DS		 331 /* BGP default subgroup pkt queue max */
332 u_int32_t default_subgroup_pkt_queue_max;
333
718e3744 334 /* BGP default timer. */
335 u_int32_t default_holdtime;
336 u_int32_t default_keepalive;
538621f2 337
338 /* BGP graceful restart */
93406d87 339 u_int32_t restart_time;
340 u_int32_t stalepath_time;
165b5fff
JB		 341
342 /* Maximum-paths configuration */
343 struct bgp_maxpaths_cfg {
344 u_int16_t maxpaths_ebgp;
345 u_int16_t maxpaths_ibgp;
5e242b0d
DS		 346 u_int16_t ibgp_flags;
347#define BGP_FLAG_IBGP_MULTIPATH_SAME_CLUSTERLEN (1 << 0)
165b5fff 348 } maxpaths[AFI_MAX][SAFI_MAX];
cb1faec9
DS		 349
350 u_int32_t wpkt_quanta; /* per peer packet quanta to write */
3f9c7369 351 u_int32_t coalesce_time;
adbac85e
DW		 352
353 u_int32_t addpath_tx_id;
354 int addpath_tx_used[AFI_MAX][SAFI_MAX];
65efcfce
LB		 355
356#if ENABLE_BGP_VNC
357 struct rfapi_cfg *rfapi_cfg;
358 struct rfapi *rfapi;
359#endif
718e3744 360};
361
2a3d5731 362#define BGP_ROUTE_ADV_HOLD(bgp) (bgp->main_peers_update_hold)
d889623f 363
ad4cbda1 364#define IS_BGP_INST_KNOWN_TO_ZEBRA(bgp) \
365 (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT || \
5c81a5f3 366 (bgp->inst_type == BGP_INSTANCE_TYPE_VRF && bgp->vrf_id != VRF_UNKNOWN))
ad4cbda1 367
718e3744 368/* BGP peer-group support. */
369struct peer_group
370{
371 /* Name of the peer-group. */
372 char *name;
373
374 /* Pointer to BGP. */
375 struct bgp *bgp;
376
377 /* Peer-group client list. */
378 struct list *peer;
379
f14e6fdb
DS		 380 /** Dynamic neighbor listening ranges */
381 struct list *listen_range[AFI_MAX];
382
718e3744 383 /* Peer-group config */
384 struct peer *conf;
385};
386
387/* BGP Notify message format. */
388struct bgp_notify
389{
390 u_char code;
391 u_char subcode;
392 char *data;
393 bgp_size_t length;
394};
395
396/* Next hop self address. */
397struct bgp_nexthop
398{
399 struct interface *ifp;
400 struct in_addr v4;
401#ifdef HAVE_IPV6
402 struct in6_addr v6_global;
403 struct in6_addr v6_local;
404#endif /* HAVE_IPV6 */
405};
406
a82478b9
DS		 407/* BGP addpath values */
408#define BGP_ADDPATH_RX 1
409#define BGP_ADDPATH_TX 2
410#define BGP_ADDPATH_ID_LEN 4
411
adbac85e
DW		 412#define BGP_ADDPATH_TX_ID_FOR_DEFAULT_ORIGINATE 1
413
718e3744 414/* BGP router distinguisher value. */
415#define BGP_RD_SIZE 8
416
417struct bgp_rd
418{
419 u_char val[BGP_RD_SIZE];
420};
421
2a3d5731
DW		 422#define RMAP_IN 0
423#define RMAP_OUT 1
424#define RMAP_MAX 2
fee0f4c6 425
65efcfce
LB		 426#include "filter.h"
427
718e3744 428/* BGP filter structure. */
429struct bgp_filter
430{
431 /* Distribute-list. */
432 struct
433 {
434 char *name;
435 struct access_list *alist;
436 } dlist[FILTER_MAX];
437
438 /* Prefix-list. */
439 struct
440 {
441 char *name;
442 struct prefix_list *plist;
443 } plist[FILTER_MAX];
444
445 /* Filter-list. */
446 struct
447 {
448 char *name;
449 struct as_list *aslist;
450 } aslist[FILTER_MAX];
451
452 /* Route-map. */
453 struct
454 {
455 char *name;
456 struct route_map *map;
fee0f4c6 457 } map[RMAP_MAX];
718e3744 458
459 /* Unsuppress-map. */
460 struct
461 {
462 char *name;
463 struct route_map *map;
464 } usmap;
465};
466
6d85b15b
JBD		 467/* IBGP/EBGP identifier. We also have a CONFED peer, which is to say,
468 a peer who's AS is part of our Confederation. */
469typedef enum
470{
471 BGP_PEER_IBGP = 1,
472 BGP_PEER_EBGP,
473 BGP_PEER_INTERNAL,
474 BGP_PEER_CONFED,
475} bgp_peer_sort_t;
476
d6661008
DS		 477/* BGP message header and packet size. */
478#define BGP_MARKER_SIZE 16
479#define BGP_HEADER_SIZE 19
480#define BGP_MAX_PACKET_SIZE 4096
0a91ff55 481#define BGP_MAX_PACKET_SIZE_OVERFLOW 1024
d6661008 482
3f9c7369
DS		 483/*
484 * Trigger delay for bgp_announce_route().
485 */
486#define BGP_ANNOUNCE_ROUTE_SHORT_DELAY_MS 100
487#define BGP_ANNOUNCE_ROUTE_DELAY_MS 500
488
489struct peer_af
490{
491 /* back pointer to the peer */
492 struct peer *peer;
493
494 /* which subgroup the peer_af belongs to */
495 struct update_subgroup *subgroup;
496
497 /* for being part of an update subgroup's peer list */
498 LIST_ENTRY(peer_af) subgrp_train;
499
500 /* for being part of a packet's peer list */
501 LIST_ENTRY(peer_af) pkt_train;
502
503 struct bpacket *next_pkt_to_send;
504
505 /*
506 * Trigger timer for bgp_announce_route().
507 */
508 struct thread *t_announce_route;
509
510 afi_t afi;
511 safi_t safi;
512 int afid;
513};
514
718e3744 515/* BGP neighbor structure. */
516struct peer
517{
518 /* BGP structure. */
519 struct bgp *bgp;
520
200df115 521 /* reference count, primarily to allow bgp_process'ing of route_node's
522 * to be done after a struct peer is deleted.
523 *
524 * named 'lock' for hysterical reasons within Quagga.
525 */
526 int lock;
527
718e3744 528 /* BGP peer group. */
529 struct peer_group *group;
f43e655e 530 uint64_t version[AFI_MAX][SAFI_MAX];
3f9c7369
DS		 531
532 /* BGP peer_af structures, per configured AF on this peer */
533 struct peer_af *peer_af_array[BGP_AF_MAX];
718e3744 534
535 /* Peer's remote AS number. */
0299c004
DS		 536 int as_type;
537 as_t as;
718e3744 538
539 /* Peer's local AS number. */
540 as_t local_as;
541
6d85b15b
JBD		 542 bgp_peer_sort_t sort;
543
718e3744 544 /* Peer's Change local AS number. */
545 as_t change_local_as;
546
547 /* Remote router ID. */
548 struct in_addr remote_id;
549
550 /* Local router ID. */
551 struct in_addr local_id;
552
553 /* Packet receive and send buffer. */
554 struct stream *ibuf;
555 struct stream_fifo *obuf;
556 struct stream *work;
557
8c71e481
PM		 558 /* We use a separate stream to encode MP_REACH_NLRI for efficient
559 * NLRI packing. peer->work stores all the other attributes. The
560 * actual packet is then constructed by concatenating the two.
561 */
562 struct stream *scratch;
563
1ff9a340
DS		 564 /* the doppelganger peer structure, due to dual TCP conn setup */
565 struct peer *doppelganger;
566
718e3744 567 /* Status of the peer. */
568 int status;
569 int ostatus;
570
6403814c
DS		 571 /* FSM events, stored for debug purposes.
572 * Note: uchar used for reduced memory usage.
573 */
574 unsigned char cur_event;
575 unsigned char last_event;
576 unsigned char last_major_event;
577
0b2aa3a0
PJ		 578 /* Peer index, used for dumping TABLE_DUMP_V2 format */
579 uint16_t table_dump_index;
580
718e3744 581 /* Peer information */
eb821189 582 int fd; /* File descriptor */
583 int ttl; /* TTL of TCP connection to the peer. */
baa376fc 584 int rtt; /* Estimated round-trip-time from TCP_INFO */
fa411a21 585 int gtsm_hops; /* minimum hopcount to peer */
eb821189 586 char *desc; /* Description of the peer. */
587 unsigned short port; /* Destination port for peer */
588 char *host; /* Printable address of the peer. */
589 union sockunion su; /* Sockunion address of the peer. */
a80beece 590#define BGP_PEER_SU_UNSPEC(peer) (peer->su.sa.sa_family == AF_UNSPEC)
eb821189 591 time_t uptime; /* Last Up/Down time */
592 time_t readtime; /* Last read time */
593 time_t resettime; /* Last reset time */
718e3744 594
b892f1dd 595 ifindex_t ifindex; /* ifindex of the BGP connection. */
a80beece 596 char *conf_if; /* neighbor interface config name. */
4a04e5f7 597 struct interface *ifp; /* corresponding interface */
eb821189 598 char *ifname; /* bind interface name. */
599 char *update_if;
600 union sockunion *update_source;
eb821189 601
602 union sockunion *su_local; /* Sockunion of local address. */
603 union sockunion *su_remote; /* Sockunion of remote address. */
604 int shared_network; /* Is this peer shared same network. */
605 struct bgp_nexthop nexthop; /* Nexthop */
718e3744 606
607 /* Peer address family configuration. */
608 u_char afc[AFI_MAX][SAFI_MAX];
609 u_char afc_nego[AFI_MAX][SAFI_MAX];
610 u_char afc_adv[AFI_MAX][SAFI_MAX];
611 u_char afc_recv[AFI_MAX][SAFI_MAX];
612
0a486e5f 613 /* Capability flags (reset in bgp_stop) */
6410e93a 614 u_int32_t cap;
718e3744 615#define PEER_CAP_REFRESH_ADV (1 << 0) /* refresh advertised */
616#define PEER_CAP_REFRESH_OLD_RCV (1 << 1) /* refresh old received */
617#define PEER_CAP_REFRESH_NEW_RCV (1 << 2) /* refresh rfc received */
618#define PEER_CAP_DYNAMIC_ADV (1 << 3) /* dynamic advertised */
619#define PEER_CAP_DYNAMIC_RCV (1 << 4) /* dynamic received */
538621f2 620#define PEER_CAP_RESTART_ADV (1 << 5) /* restart advertised */
621#define PEER_CAP_RESTART_RCV (1 << 6) /* restart received */
0b2aa3a0
PJ		 622#define PEER_CAP_AS4_ADV (1 << 7) /* as4 advertised */
623#define PEER_CAP_AS4_RCV (1 << 8) /* as4 received */
fe7d2a48
DS		 624#define PEER_CAP_RESTART_BIT_ADV (1 << 9) /* sent restart state */
625#define PEER_CAP_RESTART_BIT_RCV (1 << 10) /* peer restart state */
a82478b9
DS		 626#define PEER_CAP_ADDPATH_ADV (1 << 11) /* addpath advertised */
627#define PEER_CAP_ADDPATH_RCV (1 << 12) /* addpath received */
c744aa9f
DS		 628#define PEER_CAP_ENHE_ADV (1 << 13) /* Extended nexthop advertised */
629#define PEER_CAP_ENHE_RCV (1 << 14) /* Extended nexthop received */
04b6bdc0
DW		 630#define PEER_CAP_HOSTNAME_ADV (1 << 15) /* hostname advertised */
631#define PEER_CAP_HOSTNAME_RCV (1 << 16) /* hostname received */
718e3744 632
0a486e5f 633 /* Capability flags (reset in bgp_stop) */
04b6bdc0 634 u_int32_t af_cap[AFI_MAX][SAFI_MAX];
718e3744 635#define PEER_CAP_ORF_PREFIX_SM_ADV (1 << 0) /* send-mode advertised */
636#define PEER_CAP_ORF_PREFIX_RM_ADV (1 << 1) /* receive-mode advertised */
637#define PEER_CAP_ORF_PREFIX_SM_RCV (1 << 2) /* send-mode received */
638#define PEER_CAP_ORF_PREFIX_RM_RCV (1 << 3) /* receive-mode received */
639#define PEER_CAP_ORF_PREFIX_SM_OLD_RCV (1 << 4) /* send-mode received */
640#define PEER_CAP_ORF_PREFIX_RM_OLD_RCV (1 << 5) /* receive-mode received */
93406d87 641#define PEER_CAP_RESTART_AF_RCV (1 << 6) /* graceful restart afi/safi received */
642#define PEER_CAP_RESTART_AF_PRESERVE_RCV (1 << 7) /* graceful restart afi/safi F-bit received */
a82478b9
DS		 643#define PEER_CAP_ADDPATH_AF_TX_ADV (1 << 8) /* addpath tx advertised */
644#define PEER_CAP_ADDPATH_AF_TX_RCV (1 << 9) /* addpath tx received */
645#define PEER_CAP_ADDPATH_AF_RX_ADV (1 << 10) /* addpath rx advertised */
646#define PEER_CAP_ADDPATH_AF_RX_RCV (1 << 11) /* addpath rx received */
8a92a8a0
DS		 647#define PEER_CAP_ENHE_AF_ADV (1 << 12) /* Extended nexthopi afi/safi advertised */
648#define PEER_CAP_ENHE_AF_RCV (1 << 13) /* Extended nexthop afi/safi received */
649#define PEER_CAP_ENHE_AF_NEGO (1 << 14) /* Extended nexthop afi/safi negotiated */
718e3744 650
651 /* Global configuration flags. */
652 u_int32_t flags;
653#define PEER_FLAG_PASSIVE (1 << 0) /* passive mode */
654#define PEER_FLAG_SHUTDOWN (1 << 1) /* shutdown */
655#define PEER_FLAG_DONT_CAPABILITY (1 << 2) /* dont-capability */
656#define PEER_FLAG_OVERRIDE_CAPABILITY (1 << 3) /* override-capability */
657#define PEER_FLAG_STRICT_CAP_MATCH (1 << 4) /* strict-match */
c9502438 658#define PEER_FLAG_DYNAMIC_CAPABILITY (1 << 5) /* dynamic capability */
6ffd2079 659#define PEER_FLAG_DISABLE_CONNECTED_CHECK (1 << 6) /* disable-connected-check */
c9502438 660#define PEER_FLAG_LOCAL_AS_NO_PREPEND (1 << 7) /* local-as no-prepend */
9d3f9705 661#define PEER_FLAG_LOCAL_AS_REPLACE_AS (1 << 8) /* local-as no-prepend replace-as */
1ff9a340
DS		 662#define PEER_FLAG_DELETE (1 << 9) /* mark the peer for deleting */
663#define PEER_FLAG_CONFIG_NODE (1 << 10) /* the node to update configs on */
7f342629
DS		 664#define PEER_FLAG_LONESOUL (1 << 11)
665#define PEER_FLAG_DYNAMIC_NEIGHBOR (1 << 12) /* dynamic neighbor */
666#define PEER_FLAG_CAPABILITY_ENHE (1 << 13) /* Extended next-hop (rfc 5549)*/
88177fe3 667#define PEER_FLAG_IFPEER_V6ONLY (1 << 14) /* if-based peer is v6 only */
65efcfce
LB		 668#if ENABLE_BGP_VNC
669#define PEER_FLAG_IS_RFAPI_HD (1 << 15) /* attached to rfapi HD */
670#endif
718e3744 671
93406d87 672 /* NSF mode (graceful restart) */
673 u_char nsf[AFI_MAX][SAFI_MAX];
674
718e3744 675 /* Per AF configuration flags. */
676 u_int32_t af_flags[AFI_MAX][SAFI_MAX];
677#define PEER_FLAG_SEND_COMMUNITY (1 << 0) /* send-community */
678#define PEER_FLAG_SEND_EXT_COMMUNITY (1 << 1) /* send-community ext. */
679#define PEER_FLAG_NEXTHOP_SELF (1 << 2) /* next-hop-self */
680#define PEER_FLAG_REFLECTOR_CLIENT (1 << 3) /* reflector-client */
681#define PEER_FLAG_RSERVER_CLIENT (1 << 4) /* route-server-client */
682#define PEER_FLAG_SOFT_RECONFIG (1 << 5) /* soft-reconfiguration */
683#define PEER_FLAG_AS_PATH_UNCHANGED (1 << 6) /* transparent-as */
684#define PEER_FLAG_NEXTHOP_UNCHANGED (1 << 7) /* transparent-next-hop */
685#define PEER_FLAG_MED_UNCHANGED (1 << 8) /* transparent-next-hop */
686#define PEER_FLAG_DEFAULT_ORIGINATE (1 << 9) /* default-originate */
687#define PEER_FLAG_REMOVE_PRIVATE_AS (1 << 10) /* remove-private-as */
688#define PEER_FLAG_ALLOWAS_IN (1 << 11) /* set allowas-in */
689#define PEER_FLAG_ORF_PREFIX_SM (1 << 12) /* orf capability send-mode */
690#define PEER_FLAG_ORF_PREFIX_RM (1 << 13) /* orf capability receive-mode */
691#define PEER_FLAG_MAX_PREFIX (1 << 14) /* maximum prefix */
692#define PEER_FLAG_MAX_PREFIX_WARNING (1 << 15) /* maximum prefix warning-only */
0df7c91f 693#define PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED (1 << 16) /* leave link-local nexthop unchanged */
a538debe 694#define PEER_FLAG_FORCE_NEXTHOP_SELF (1 << 17) /* next-hop-self force */
5000f21c
DS		 695#define PEER_FLAG_REMOVE_PRIVATE_AS_ALL (1 << 18) /* remove-private-as all */
696#define PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE (1 << 19) /* remove-private-as replace-as */
c7122e14 697#define PEER_FLAG_AS_OVERRIDE (1 << 20) /* as-override */
88b8ed8d 698#define PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE (1 << 21) /* remove-private-as all replace-as */
adbac85e 699#define PEER_FLAG_ADDPATH_TX_ALL_PATHS (1 << 22) /* addpath-tx-all-paths */
06370dac 700#define PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS (1 << 23) /* addpath-tx-bestpath-per-AS */
d93f7ffc 701#define PEER_FLAG_WEIGHT (1 << 24) /* weight */
aac9ef6c 702#define PEER_FLAG_ALLOWAS_IN_ORIGIN (1 << 25) /* allowas-in origin */
0df7c91f
PJ		 703
704 /* MD5 password */
705 char *password;
718e3744 706
707 /* default-originate route-map. */
708 struct
709 {
710 char *name;
711 struct route_map *map;
712 } default_rmap[AFI_MAX][SAFI_MAX];
713
714 /* Peer status flags. */
715 u_int16_t sflags;
716#define PEER_STATUS_ACCEPT_PEER (1 << 0) /* accept peer */
717#define PEER_STATUS_PREFIX_OVERFLOW (1 << 1) /* prefix-overflow */
718#define PEER_STATUS_CAPABILITY_OPEN (1 << 2) /* capability open send */
719#define PEER_STATUS_HAVE_ACCEPT (1 << 3) /* accept peer's parent */
720#define PEER_STATUS_GROUP (1 << 4) /* peer-group conf */
93406d87 721#define PEER_STATUS_NSF_MODE (1 << 5) /* NSF aware peer */
722#define PEER_STATUS_NSF_WAIT (1 << 6) /* wait comeback peer */
718e3744 723
0a486e5f 724 /* Peer status af flags (reset in bgp_stop) */
718e3744 725 u_int16_t af_sflags[AFI_MAX][SAFI_MAX];
726#define PEER_STATUS_ORF_PREFIX_SEND (1 << 0) /* prefix-list send peer */
727#define PEER_STATUS_ORF_WAIT_REFRESH (1 << 1) /* wait refresh received peer */
840fced9
DS		 728#define PEER_STATUS_PREFIX_THRESHOLD (1 << 2) /* exceed prefix-threshold */
729#define PEER_STATUS_PREFIX_LIMIT (1 << 3) /* exceed prefix-limit */
730#define PEER_STATUS_EOR_SEND (1 << 4) /* end-of-rib send to peer */
731#define PEER_STATUS_EOR_RECEIVED (1 << 5) /* end-of-rib received from peer */
e0701b79 732
718e3744 733 /* Default attribute value for the peer. */
734 u_int32_t config;
d93f7ffc
DW		 735#define PEER_CONFIG_TIMER (1 << 0) /* keepalive & holdtime */
736#define PEER_CONFIG_CONNECT (1 << 1) /* connect */
737#define PEER_CONFIG_ROUTEADV (1 << 2) /* route advertise */
8ffedcea 738
718e3744 739 u_int32_t holdtime;
740 u_int32_t keepalive;
741 u_int32_t connect;
742 u_int32_t routeadv;
743
744 /* Timer values. */
745 u_int32_t v_start;
746 u_int32_t v_connect;
747 u_int32_t v_holdtime;
748 u_int32_t v_keepalive;
718e3744 749 u_int32_t v_routeadv;
0a486e5f 750 u_int32_t v_pmax_restart;
93406d87 751 u_int32_t v_gr_restart;
718e3744 752
753 /* Threads. */
754 struct thread *t_read;
755 struct thread *t_write;
756 struct thread *t_start;
757 struct thread *t_connect;
758 struct thread *t_holdtime;
759 struct thread *t_keepalive;
718e3744 760 struct thread *t_routeadv;
0a486e5f 761 struct thread *t_pmax_restart;
93406d87 762 struct thread *t_gr_restart;
763 struct thread *t_gr_stale;
64e580a7
PJ		 764
765 /* workqueues */
766 struct work_queue *clear_node_queue;
767
718e3744 768 /* Statistics field */
769 u_int32_t open_in; /* Open message input count */
770 u_int32_t open_out; /* Open message output count */
771 u_int32_t update_in; /* Update message input count */
772 u_int32_t update_out; /* Update message ouput count */
773 time_t update_time; /* Update message received time. */
774 u_int32_t keepalive_in; /* Keepalive input count */
775 u_int32_t keepalive_out; /* Keepalive output count */
776 u_int32_t notify_in; /* Notify input count */
777 u_int32_t notify_out; /* Notify output count */
778 u_int32_t refresh_in; /* Route Refresh input count */
779 u_int32_t refresh_out; /* Route Refresh output count */
780 u_int32_t dynamic_cap_in; /* Dynamic Capability input count. */
781 u_int32_t dynamic_cap_out; /* Dynamic Capability output count. */
782
783 /* BGP state count */
784 u_int32_t established; /* Established */
785 u_int32_t dropped; /* Dropped */
786
f188f2c4
DS		 787 /* Update delay related fields */
788 u_char update_delay_over; /* When this is set, BGP is no more waiting for EOR */
789
718e3744 790 /* Syncronization list and time. */
791 struct bgp_synchronize *sync[AFI_MAX][SAFI_MAX];
792 time_t synctime;
1ba2a97a
DW		 793 time_t last_write; /* timestamp when the last msg was written */
794 time_t last_update; /* timestamp when the last UPDATE msg was written */
718e3744 795
796 /* Send prefix count. */
797 unsigned long scount[AFI_MAX][SAFI_MAX];
798
799 /* Announcement attribute hash. */
800 struct hash *hash[AFI_MAX][SAFI_MAX];
801
802 /* Notify data. */
803 struct bgp_notify notify;
804
805 /* Whole packet size to be read. */
806 unsigned long packet_size;
807
808 /* Filter structure. */
809 struct bgp_filter filter[AFI_MAX][SAFI_MAX];
810
811 /* ORF Prefix-list */
812 struct prefix_list *orf_plist[AFI_MAX][SAFI_MAX];
813
16286195
DS		 814 /* Text description of last attribute rcvd */
815 char rcvd_attr_str[BUFSIZ];
816
817 /* Track if we printed the attribute in debugs */
818 int rcvd_attr_printed;
819
718e3744 820 /* Prefix count. */
821 unsigned long pcount[AFI_MAX][SAFI_MAX];
822
823 /* Max prefix count. */
824 unsigned long pmax[AFI_MAX][SAFI_MAX];
e0701b79 825 u_char pmax_threshold[AFI_MAX][SAFI_MAX];
0a486e5f 826 u_int16_t pmax_restart[AFI_MAX][SAFI_MAX];
e0701b79 827#define MAXIMUM_PREFIX_THRESHOLD_DEFAULT 75
718e3744 828
829 /* allowas-in. */
830 char allowas_in[AFI_MAX][SAFI_MAX];
ac41b2a2 831
d93f7ffc
DW		 832 /* weight */
833 unsigned long weight[AFI_MAX][SAFI_MAX];
834
e0701b79 835 /* peer reset cause */
836 char last_reset;
837#define PEER_DOWN_RID_CHANGE 1 /* bgp router-id command */
838#define PEER_DOWN_REMOTE_AS_CHANGE 2 /* neighbor remote-as command */
839#define PEER_DOWN_LOCAL_AS_CHANGE 3 /* neighbor local-as command */
840#define PEER_DOWN_CLID_CHANGE 4 /* bgp cluster-id command */
841#define PEER_DOWN_CONFED_ID_CHANGE 5 /* bgp confederation identifier command */
842#define PEER_DOWN_CONFED_PEER_CHANGE 6 /* bgp confederation peer command */
843#define PEER_DOWN_RR_CLIENT_CHANGE 7 /* neighbor route-reflector-client command */
844#define PEER_DOWN_RS_CLIENT_CHANGE 8 /* neighbor route-server-client command */
845#define PEER_DOWN_UPDATE_SOURCE_CHANGE 9 /* neighbor update-source command */
846#define PEER_DOWN_AF_ACTIVATE 10 /* neighbor activate command */
847#define PEER_DOWN_USER_SHUTDOWN 11 /* neighbor shutdown command */
848#define PEER_DOWN_USER_RESET 12 /* clear ip bgp command */
849#define PEER_DOWN_NOTIFY_RECEIVED 13 /* notification received */
850#define PEER_DOWN_NOTIFY_SEND 14 /* notification send */
851#define PEER_DOWN_CLOSE_SESSION 15 /* tcp session close */
852#define PEER_DOWN_NEIGHBOR_DELETE 16 /* neghbor delete */
853#define PEER_DOWN_RMAP_BIND 17 /* neghbor peer-group command */
854#define PEER_DOWN_RMAP_UNBIND 18 /* no neighbor peer-group command */
855#define PEER_DOWN_CAPABILITY_CHANGE 19 /* neighbor capability command */
856#define PEER_DOWN_PASSIVE_CHANGE 20 /* neighbor passive command */
857#define PEER_DOWN_MULTIHOP_CHANGE 21 /* neighbor multihop command */
93406d87 858#define PEER_DOWN_NSF_CLOSE_SESSION 22 /* NSF tcp session close */
8ffedcea 859#define PEER_DOWN_V6ONLY_CHANGE 23 /* if-based peering v6only toggled */
7bbc6864 860#define PEER_DOWN_BFD_DOWN 24 /* BFD down */
e60480bd
DD		 861#define PEER_DOWN_IF_DOWN 25 /* Interface down */
862#define PEER_DOWN_NBR_ADDR_DEL 26 /* Peer address lost */
d6661008
DS		 863unsigned long last_reset_cause_size;
864u_char last_reset_cause[BGP_MAX_PACKET_SIZE];
e0701b79 865
ac41b2a2 866 /* The kind of route-map Flags.*/
867 u_char rmap_type;
868#define PEER_RMAP_TYPE_IN (1 << 0) /* neighbor route-map in */
869#define PEER_RMAP_TYPE_OUT (1 << 1) /* neighbor route-map out */
870#define PEER_RMAP_TYPE_NETWORK (1 << 2) /* network route-map */
871#define PEER_RMAP_TYPE_REDISTRIBUTE (1 << 3) /* redistribute route-map */
872#define PEER_RMAP_TYPE_DEFAULT (1 << 4) /* default-originate route-map */
873#define PEER_RMAP_TYPE_NOSET (1 << 5) /* not allow to set commands */
fee0f4c6 874#define PEER_RMAP_TYPE_IMPORT (1 << 6) /* neighbor route-map import */
875#define PEER_RMAP_TYPE_EXPORT (1 << 7) /* neighbor route-map export */
6410e93a 876
c43ed2e4 877 /* peer specific BFD information */
88177fe3 878 struct bfd_info *bfd_info;
04b6bdc0
DW		 879
880 /* hostname and domainname advertised by host */
881 char *hostname;
882 char *domainname;
718e3744 883};
884
ad4cbda1 885/* Check if suppress start/restart of sessions to peer. */
886#define BGP_PEER_START_SUPPRESSED(P) \
887 (CHECK_FLAG ((P)->flags, PEER_FLAG_SHUTDOWN) \
888 || CHECK_FLAG ((P)->sflags, PEER_STATUS_PREFIX_OVERFLOW))
889
0df7c91f
PJ		 890#define PEER_PASSWORD_MINLEN (1)
891#define PEER_PASSWORD_MAXLEN (80)
892
718e3744 893/* This structure's member directly points incoming packet data
894 stream. */
895struct bgp_nlri
896{
897 /* AFI. */
898 afi_t afi;
899
900 /* SAFI. */
901 safi_t safi;
902
903 /* Pointer to NLRI byte stream. */
904 u_char *nlri;
905
906 /* Length of whole NLRI. */
907 bgp_size_t length;
908};
909
910/* BGP versions. */
911#define BGP_VERSION_4 4
718e3744 912
913/* Default BGP port number. */
914#define BGP_PORT_DEFAULT 179
915
718e3744 916/* BGP minimum message size. */
917#define BGP_MSG_OPEN_MIN_SIZE (BGP_HEADER_SIZE + 10)
918#define BGP_MSG_UPDATE_MIN_SIZE (BGP_HEADER_SIZE + 4)
919#define BGP_MSG_NOTIFY_MIN_SIZE (BGP_HEADER_SIZE + 2)
920#define BGP_MSG_KEEPALIVE_MIN_SIZE (BGP_HEADER_SIZE + 0)
921#define BGP_MSG_ROUTE_REFRESH_MIN_SIZE (BGP_HEADER_SIZE + 4)
922#define BGP_MSG_CAPABILITY_MIN_SIZE (BGP_HEADER_SIZE + 3)
923
924/* BGP message types. */
925#define BGP_MSG_OPEN 1
926#define BGP_MSG_UPDATE 2
927#define BGP_MSG_NOTIFY 3
928#define BGP_MSG_KEEPALIVE 4
929#define BGP_MSG_ROUTE_REFRESH_NEW 5
930#define BGP_MSG_CAPABILITY 6
931#define BGP_MSG_ROUTE_REFRESH_OLD 128
932
933/* BGP open optional parameter. */
934#define BGP_OPEN_OPT_AUTH 1
935#define BGP_OPEN_OPT_CAP 2
936
937/* BGP4 attribute type codes. */
938#define BGP_ATTR_ORIGIN 1
939#define BGP_ATTR_AS_PATH 2
940#define BGP_ATTR_NEXT_HOP 3
941#define BGP_ATTR_MULTI_EXIT_DISC 4
942#define BGP_ATTR_LOCAL_PREF 5
943#define BGP_ATTR_ATOMIC_AGGREGATE 6
944#define BGP_ATTR_AGGREGATOR 7
945#define BGP_ATTR_COMMUNITIES 8
946#define BGP_ATTR_ORIGINATOR_ID 9
947#define BGP_ATTR_CLUSTER_LIST 10
948#define BGP_ATTR_DPA 11
949#define BGP_ATTR_ADVERTISER 12
950#define BGP_ATTR_RCID_PATH 13
951#define BGP_ATTR_MP_REACH_NLRI 14
952#define BGP_ATTR_MP_UNREACH_NLRI 15
953#define BGP_ATTR_EXT_COMMUNITIES 16
0b2aa3a0
PJ		 954#define BGP_ATTR_AS4_PATH 17
955#define BGP_ATTR_AS4_AGGREGATOR 18
41367172 956#define BGP_ATTR_AS_PATHLIMIT 21
f4c89855 957#define BGP_ATTR_ENCAP 23
65efcfce
LB		 958#if ENABLE_BGP_VNC
959#define BGP_ATTR_VNC 255
960#endif
718e3744 961
962/* BGP update origin. */
963#define BGP_ORIGIN_IGP 0
964#define BGP_ORIGIN_EGP 1
965#define BGP_ORIGIN_INCOMPLETE 2
966
967/* BGP notify message codes. */
968#define BGP_NOTIFY_HEADER_ERR 1
969#define BGP_NOTIFY_OPEN_ERR 2
970#define BGP_NOTIFY_UPDATE_ERR 3
971#define BGP_NOTIFY_HOLD_ERR 4
972#define BGP_NOTIFY_FSM_ERR 5
973#define BGP_NOTIFY_CEASE 6
974#define BGP_NOTIFY_CAPABILITY_ERR 7
975#define BGP_NOTIFY_MAX 8
976
4b4e07d2
DT		 977#define BGP_NOTIFY_SUBCODE_UNSPECIFIC 0
978
718e3744 979/* BGP_NOTIFY_HEADER_ERR sub codes. */
980#define BGP_NOTIFY_HEADER_NOT_SYNC 1
981#define BGP_NOTIFY_HEADER_BAD_MESLEN 2
982#define BGP_NOTIFY_HEADER_BAD_MESTYPE 3
983#define BGP_NOTIFY_HEADER_MAX 4
984
985/* BGP_NOTIFY_OPEN_ERR sub codes. */
14051b36 986#define BGP_NOTIFY_OPEN_MALFORMED_ATTR 0
718e3744 987#define BGP_NOTIFY_OPEN_UNSUP_VERSION 1
988#define BGP_NOTIFY_OPEN_BAD_PEER_AS 2
989#define BGP_NOTIFY_OPEN_BAD_BGP_IDENT 3
990#define BGP_NOTIFY_OPEN_UNSUP_PARAM 4
991#define BGP_NOTIFY_OPEN_AUTH_FAILURE 5
992#define BGP_NOTIFY_OPEN_UNACEP_HOLDTIME 6
993#define BGP_NOTIFY_OPEN_UNSUP_CAPBL 7
994#define BGP_NOTIFY_OPEN_MAX 8
995
996/* BGP_NOTIFY_UPDATE_ERR sub codes. */
997#define BGP_NOTIFY_UPDATE_MAL_ATTR 1
998#define BGP_NOTIFY_UPDATE_UNREC_ATTR 2
999#define BGP_NOTIFY_UPDATE_MISS_ATTR 3
1000#define BGP_NOTIFY_UPDATE_ATTR_FLAG_ERR 4
1001#define BGP_NOTIFY_UPDATE_ATTR_LENG_ERR 5
1002#define BGP_NOTIFY_UPDATE_INVAL_ORIGIN 6
1003#define BGP_NOTIFY_UPDATE_AS_ROUTE_LOOP 7
1004#define BGP_NOTIFY_UPDATE_INVAL_NEXT_HOP 8
1005#define BGP_NOTIFY_UPDATE_OPT_ATTR_ERR 9
1006#define BGP_NOTIFY_UPDATE_INVAL_NETWORK 10
1007#define BGP_NOTIFY_UPDATE_MAL_AS_PATH 11
1008#define BGP_NOTIFY_UPDATE_MAX 12
1009
4b4e07d2 1010/* BGP_NOTIFY_CEASE sub codes (RFC 4486). */
718e3744 1011#define BGP_NOTIFY_CEASE_MAX_PREFIX 1
1012#define BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN 2
1013#define BGP_NOTIFY_CEASE_PEER_UNCONFIG 3
1014#define BGP_NOTIFY_CEASE_ADMIN_RESET 4
1015#define BGP_NOTIFY_CEASE_CONNECT_REJECT 5
1016#define BGP_NOTIFY_CEASE_CONFIG_CHANGE 6
545acafb 1017#define BGP_NOTIFY_CEASE_COLLISION_RESOLUTION 7
1018#define BGP_NOTIFY_CEASE_OUT_OF_RESOURCE 8
1019#define BGP_NOTIFY_CEASE_MAX 9
718e3744 1020
1021/* BGP_NOTIFY_CAPABILITY_ERR sub codes (draft-ietf-idr-dynamic-cap-02). */
1022#define BGP_NOTIFY_CAPABILITY_INVALID_ACTION 1
1023#define BGP_NOTIFY_CAPABILITY_INVALID_LENGTH 2
1024#define BGP_NOTIFY_CAPABILITY_MALFORMED_CODE 3
1025#define BGP_NOTIFY_CAPABILITY_MAX 4
1026
1027/* BGP finite state machine status. */
1028#define Idle 1
1029#define Connect 2
1030#define Active 3
1031#define OpenSent 4
1032#define OpenConfirm 5
1033#define Established 6
ca058a30
PJ		 1034#define Clearing 7
1035#define Deleted 8
1036#define BGP_STATUS_MAX 9
718e3744 1037
1038/* BGP finite state machine events. */
1039#define BGP_Start 1
1040#define BGP_Stop 2
1041#define TCP_connection_open 3
1042#define TCP_connection_closed 4
1043#define TCP_connection_open_failed 5
1044#define TCP_fatal_error 6
1045#define ConnectRetry_timer_expired 7
1046#define Hold_Timer_expired 8
1047#define KeepAlive_timer_expired 9
1048#define Receive_OPEN_message 10
1049#define Receive_KEEPALIVE_message 11
1050#define Receive_UPDATE_message 12
1051#define Receive_NOTIFICATION_message 13
ca058a30
PJ		 1052#define Clearing_Completed 14
1053#define BGP_EVENTS_MAX 15
718e3744 1054
1055/* BGP timers default value. */
8efe88ea 1056/* note: the DFLT_ ones depend on compile-time "defaults" selection */
5ca5f1c8 1057#define BGP_INIT_START_TIMER 1
8efe88ea
DL		 1058#define BGP_DEFAULT_HOLDTIME DFLT_BGP_HOLDTIME
1059#define BGP_DEFAULT_KEEPALIVE DFLT_BGP_KEEPALIVE
12179ba3 1060#define BGP_DEFAULT_EBGP_ROUTEADV 0
1670355a 1061#define BGP_DEFAULT_IBGP_ROUTEADV 0
8efe88ea 1062#define BGP_DEFAULT_CONNECT_RETRY DFLT_BGP_TIMERS_CONNECT
718e3744 1063
1064/* BGP default local preference. */
1065#define BGP_DEFAULT_LOCAL_PREF 100
1066
3f9c7369
DS		 1067/* BGP default subgroup packet queue max . */
1068#define BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX 40
1069
538621f2 1070/* BGP graceful restart */
1071#define BGP_DEFAULT_RESTART_TIME 120
1072#define BGP_DEFAULT_STALEPATH_TIME 360
1073
42e6d745
DO		 1074/* RFC4364 */
1075#define SAFI_MPLS_LABELED_VPN 128
65efcfce 1076#define BGP_SAFI_VPN 128
718e3744 1077
718e3744 1078/* BGP uptime string length. */
1079#define BGP_UPTIME_LEN 25
1080
1081/* Default configuration settings for bgpd. */
1082#define BGP_VTY_PORT 2605
718e3744 1083#define BGP_DEFAULT_CONFIG "bgpd.conf"
1084
1085/* Check AS path loop when we send NLRI. */
1086/* #define BGP_SEND_ASPATH_CHECK */
1087
f14e6fdb
DS		 1088/* BGP Dynamic Neighbors feature */
1089#define BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT 100
1090#define BGP_DYNAMIC_NEIGHBORS_LIMIT_MIN 1
1091#define BGP_DYNAMIC_NEIGHBORS_LIMIT_MAX 5000
1092
718e3744 1093/* Flag for peer_clear_soft(). */
1094enum bgp_clear_type
1095{
1096 BGP_CLEAR_SOFT_NONE,
1097 BGP_CLEAR_SOFT_OUT,
1098 BGP_CLEAR_SOFT_IN,
1099 BGP_CLEAR_SOFT_BOTH,
2a3d5731 1100 BGP_CLEAR_SOFT_IN_ORF_PREFIX
718e3744 1101};
1102
1103/* Macros. */
1104#define BGP_INPUT(P) ((P)->ibuf)
1105#define BGP_INPUT_PNT(P) (STREAM_PNT(BGP_INPUT(P)))
6aa136f1
VS		 1106#define BGP_IS_VALID_STATE_FOR_NOTIF(S)\
1107 (((S) == OpenSent) || ((S) == OpenConfirm) || ((S) == Established))
718e3744 1108
718e3744 1109/* BGP error codes. */
1110#define BGP_SUCCESS 0
1111#define BGP_ERR_INVALID_VALUE -1
1112#define BGP_ERR_INVALID_FLAG -2
1113#define BGP_ERR_INVALID_AS -3
1114#define BGP_ERR_INVALID_BGP -4
1115#define BGP_ERR_PEER_GROUP_MEMBER -5
1116#define BGP_ERR_MULTIPLE_INSTANCE_USED -6
c8560b44
DW		 1117#define BGP_ERR_PEER_GROUP_NO_REMOTE_AS -7
1118#define BGP_ERR_PEER_GROUP_CANT_CHANGE -8
1119#define BGP_ERR_PEER_GROUP_MISMATCH -9
1120#define BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT -10
1121#define BGP_ERR_MULTIPLE_INSTANCE_NOT_SET -11
1122#define BGP_ERR_AS_MISMATCH -12
1123#define BGP_ERR_PEER_FLAG_CONFLICT -13
1124#define BGP_ERR_PEER_GROUP_SHUTDOWN -14
1125#define BGP_ERR_PEER_FILTER_CONFLICT -15
1126#define BGP_ERR_NOT_INTERNAL_PEER -16
1127#define BGP_ERR_REMOVE_PRIVATE_AS -17
1128#define BGP_ERR_AF_UNCONFIGURED -18
1129#define BGP_ERR_SOFT_RECONFIG_UNCONFIGURED -19
1130#define BGP_ERR_INSTANCE_MISMATCH -20
1131#define BGP_ERR_LOCAL_AS_ALLOWED_ONLY_FOR_EBGP -21
1132#define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS -22
1133#define BGP_ERR_TCPSIG_FAILED -23
1134#define BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK -24
1135#define BGP_ERR_NO_IBGP_WITH_TTLHACK -25
1136#define BGP_ERR_NO_INTERFACE_CONFIG -26
1137#define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS_REMOTE_AS -27
1138#define BGP_ERR_AS_OVERRIDE -28
1139#define BGP_ERR_INVALID_DYNAMIC_NEIGHBORS_LIMIT -29
1140#define BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_EXISTS -30
1141#define BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_NOT_FOUND -31
1142#define BGP_ERR_INVALID_FOR_DYNAMIC_PEER -32
1143#define BGP_ERR_MAX -33
63fa10b5 1144#define BGP_ERR_INVALID_FOR_DIRECT_PEER -34
718e3744 1145
3f9c7369
DS		 1146/*
1147 * Enumeration of different policy kinds a peer can be configured with.
1148 */
1149typedef enum
1150{
1151 BGP_POLICY_ROUTE_MAP,
1152 BGP_POLICY_FILTER_LIST,
1153 BGP_POLICY_PREFIX_LIST,
1154 BGP_POLICY_DISTRIBUTE_LIST,
1155} bgp_policy_type_e;
1156
718e3744 1157extern struct bgp_master *bm;
1158
718e3744 1159/* Prototypes. */
94f2b392 1160extern void bgp_terminate (void);
1161extern void bgp_reset (void);
65957886 1162extern time_t bgp_clock (void);
94f2b392 1163extern void bgp_zclient_reset (void);
1164extern int bgp_nexthop_set (union sockunion *, union sockunion *,
718e3744 1165 struct bgp_nexthop *, struct peer *);
94f2b392 1166extern struct bgp *bgp_get_default (void);
1167extern struct bgp *bgp_lookup (as_t, const char *);
1168extern struct bgp *bgp_lookup_by_name (const char *);
6aeb9e78 1169extern struct bgp *bgp_lookup_by_vrf_id (vrf_id_t);
94f2b392 1170extern struct peer *peer_lookup (struct bgp *, union sockunion *);
a80beece 1171extern struct peer *peer_lookup_by_conf_if (struct bgp *, const char *);
04b6bdc0 1172extern struct peer *peer_lookup_by_hostname(struct bgp *, const char *);
a80beece 1173extern void bgp_peer_conf_if_to_su_update (struct peer *);
ffd0c037 1174extern int peer_group_listen_range_del(struct peer_group *, struct prefix *);
94f2b392 1175extern struct peer_group *peer_group_lookup (struct bgp *, const char *);
1176extern struct peer_group *peer_group_get (struct bgp *, const char *);
f14e6fdb
DS		 1177extern struct peer *peer_create_bind_dynamic_neighbor (struct bgp *,
1178 union sockunion *, struct peer_group *);
1179extern struct prefix *peer_group_lookup_dynamic_neighbor_range (
1180 struct peer_group *, struct prefix *);
1181extern struct peer_group *peer_group_lookup_dynamic_neighbor (struct bgp *,
1182 struct prefix *, struct prefix **);
1183extern struct peer *peer_lookup_dynamic_neighbor (struct bgp *,
1184 union sockunion *);
1185extern void peer_drop_dynamic_neighbor (struct peer *);
28066f4b
DS		 1186
1187/*
1188 * Peers are incredibly easy to memory leak
1189 * due to the various ways that they are actually used
1190 * Provide some functionality to debug locks and unlocks
1191 */
1192extern struct peer *peer_lock_with_caller(const char *, struct peer *);
1193extern struct peer *peer_unlock_with_caller(const char *, struct peer *);
1194#define peer_unlock(A) peer_unlock_with_caller(__FUNCTION__, (A))
1195#define peer_lock(B) peer_lock_with_caller(__FUNCTION__, (B))
1196
6d85b15b 1197extern bgp_peer_sort_t peer_sort (struct peer *peer);
94f2b392 1198extern int peer_active (struct peer *);
1199extern int peer_active_nego (struct peer *);
06370dac 1200extern void bgp_recalculate_all_bestpaths (struct bgp *bgp);
a80beece 1201extern struct peer *peer_create(union sockunion *, const char *, struct bgp *,
f813b13b 1202 as_t, as_t, int, afi_t, safi_t, struct peer_group *);
94f2b392 1203extern struct peer *peer_create_accept (struct bgp *);
1ff9a340 1204extern void peer_xfer_config (struct peer *dst, struct peer *src);
856ca177
MS		 1205extern char *peer_uptime (time_t, char *, size_t, u_char, json_object *);
1206
94f2b392 1207extern int bgp_config_write (struct vty *);
1208extern void bgp_config_write_family_header (struct vty *, afi_t, safi_t, int *);
6b0655a2 1209
94f2b392 1210extern void bgp_master_init (void);
718e3744 1211
94f2b392 1212extern void bgp_init (void);
1213extern void bgp_route_map_init (void);
4c48cf63 1214extern void bgp_session_reset (struct peer *);
718e3744 1215
94f2b392 1216extern int bgp_option_set (int);
1217extern int bgp_option_unset (int);
1218extern int bgp_option_check (int);
718e3744 1219
ad4cbda1 1220extern int bgp_get (struct bgp **, as_t *, const char *, enum bgp_instance_type);
6aeb9e78
DS		 1221extern void bgp_instance_up (struct bgp *);
1222extern void bgp_instance_down (struct bgp *);
94f2b392 1223extern int bgp_delete (struct bgp *);
718e3744 1224
94f2b392 1225extern int bgp_flag_set (struct bgp *, int);
1226extern int bgp_flag_unset (struct bgp *, int);
1227extern int bgp_flag_check (struct bgp *, int);
718e3744 1228
0088b5dc
SH		 1229extern void bgp_lock (struct bgp *);
1230extern void bgp_unlock (struct bgp *);
1231
0e6cb743
DL		 1232extern void bgp_router_id_zebra_bump (vrf_id_t, const struct prefix*);
1233extern int bgp_router_id_static_set (struct bgp *, struct in_addr);
718e3744 1234
94f2b392 1235extern int bgp_cluster_id_set (struct bgp *, struct in_addr *);
1236extern int bgp_cluster_id_unset (struct bgp *);
718e3744 1237
94f2b392 1238extern int bgp_confederation_id_set (struct bgp *, as_t);
1239extern int bgp_confederation_id_unset (struct bgp *);
1240extern int bgp_confederation_peers_check (struct bgp *, as_t);
718e3744 1241
94f2b392 1242extern int bgp_confederation_peers_add (struct bgp *, as_t);
1243extern int bgp_confederation_peers_remove (struct bgp *, as_t);
718e3744 1244
4760600f 1245extern int bgp_timers_set (struct bgp *, u_int32_t keepalive, u_int32_t holdtime);
94f2b392 1246extern int bgp_timers_unset (struct bgp *);
718e3744 1247
94f2b392 1248extern int bgp_default_local_preference_set (struct bgp *, u_int32_t);
1249extern int bgp_default_local_preference_unset (struct bgp *);
718e3744 1250
3f9c7369
DS		 1251extern int bgp_default_subgroup_pkt_queue_max_set (struct bgp *bgp, u_int32_t);
1252extern int bgp_default_subgroup_pkt_queue_max_unset (struct bgp *bgp);
1253
f14e6fdb
DS		 1254extern int bgp_listen_limit_set (struct bgp *, int);
1255extern int bgp_listen_limit_unset (struct bgp *);
1256
f188f2c4
DS		 1257extern int bgp_update_delay_active (struct bgp *);
1258extern int bgp_update_delay_configured (struct bgp *);
0299c004 1259extern void peer_as_change (struct peer *, as_t, int);
a80beece 1260extern int peer_remote_as (struct bgp *, union sockunion *,const char *, as_t *,
0299c004
DS		 1261 int, afi_t, safi_t);
1262extern int peer_group_remote_as (struct bgp *, const char *, as_t *, int);
94f2b392 1263extern int peer_delete (struct peer *peer);
1264extern int peer_group_delete (struct peer_group *);
1265extern int peer_group_remote_as_delete (struct peer_group *);
f14e6fdb 1266extern int peer_group_listen_range_add(struct peer_group *, struct prefix *);
718e3744 1267
94f2b392 1268extern int peer_activate (struct peer *, afi_t, safi_t);
1269extern int peer_deactivate (struct peer *, afi_t, safi_t);
4760600f 1270extern int peer_afc_set (struct peer *, afi_t, safi_t, int);
718e3744 1271
a80beece 1272extern int peer_group_bind (struct bgp *, union sockunion *, struct peer *,
c8560b44
DW		 1273 struct peer_group *, as_t *);
1274extern int peer_group_unbind (struct bgp *, struct peer *, struct peer_group *);
718e3744 1275
94f2b392 1276extern int peer_flag_set (struct peer *, u_int32_t);
1277extern int peer_flag_unset (struct peer *, u_int32_t);
718e3744 1278
94f2b392 1279extern int peer_af_flag_set (struct peer *, afi_t, safi_t, u_int32_t);
1280extern int peer_af_flag_unset (struct peer *, afi_t, safi_t, u_int32_t);
1281extern int peer_af_flag_check (struct peer *, afi_t, safi_t, u_int32_t);
718e3744 1282
94f2b392 1283extern int peer_ebgp_multihop_set (struct peer *, int);
1284extern int peer_ebgp_multihop_unset (struct peer *);
c43ed2e4 1285extern int is_ebgp_multihop_configured (struct peer *peer);
718e3744 1286
4760600f 1287extern int peer_description_set (struct peer *, const char *);
94f2b392 1288extern int peer_description_unset (struct peer *);
718e3744 1289
94f2b392 1290extern int peer_update_source_if_set (struct peer *, const char *);
4760600f 1291extern int peer_update_source_addr_set (struct peer *, const union sockunion *);
94f2b392 1292extern int peer_update_source_unset (struct peer *);
718e3744 1293
94f2b392 1294extern int peer_default_originate_set (struct peer *, afi_t, safi_t, const char *);
1295extern int peer_default_originate_unset (struct peer *, afi_t, safi_t);
718e3744 1296
94f2b392 1297extern int peer_port_set (struct peer *, u_int16_t);
1298extern int peer_port_unset (struct peer *);
718e3744 1299
d93f7ffc
DW		 1300extern int peer_weight_set (struct peer *, afi_t, safi_t, u_int16_t);
1301extern int peer_weight_unset (struct peer *, afi_t, safi_t);
718e3744 1302
4760600f 1303extern int peer_timers_set (struct peer *, u_int32_t keepalive, u_int32_t holdtime);
94f2b392 1304extern int peer_timers_unset (struct peer *);
718e3744 1305
94f2b392 1306extern int peer_timers_connect_set (struct peer *, u_int32_t);
1307extern int peer_timers_connect_unset (struct peer *);
718e3744 1308
94f2b392 1309extern int peer_advertise_interval_set (struct peer *, u_int32_t);
1310extern int peer_advertise_interval_unset (struct peer *);
718e3744 1311
ffd0c037
DS		 1312extern void peer_interface_set (struct peer *, const char *);
1313extern void peer_interface_unset (struct peer *);
718e3744 1314
94f2b392 1315extern int peer_distribute_set (struct peer *, afi_t, safi_t, int, const char *);
1316extern int peer_distribute_unset (struct peer *, afi_t, safi_t, int);
718e3744 1317
aac9ef6c 1318extern int peer_allowas_in_set (struct peer *, afi_t, safi_t, int, int);
94f2b392 1319extern int peer_allowas_in_unset (struct peer *, afi_t, safi_t);
718e3744 1320
9d3f9705 1321extern int peer_local_as_set (struct peer *, as_t, int, int);
94f2b392 1322extern int peer_local_as_unset (struct peer *);
718e3744 1323
94f2b392 1324extern int peer_prefix_list_set (struct peer *, afi_t, safi_t, int, const char *);
1325extern int peer_prefix_list_unset (struct peer *, afi_t, safi_t, int);
718e3744 1326
94f2b392 1327extern int peer_aslist_set (struct peer *, afi_t, safi_t, int, const char *);
1328extern int peer_aslist_unset (struct peer *,afi_t, safi_t, int);
718e3744 1329
94f2b392 1330extern int peer_route_map_set (struct peer *, afi_t, safi_t, int, const char *);
1331extern int peer_route_map_unset (struct peer *, afi_t, safi_t, int);
718e3744 1332
94f2b392 1333extern int peer_unsuppress_map_set (struct peer *, afi_t, safi_t, const char *);
0df7c91f
PJ		 1334
1335extern int peer_password_set (struct peer *, const char *);
1336extern int peer_password_unset (struct peer *);
1337
94f2b392 1338extern int peer_unsuppress_map_unset (struct peer *, afi_t, safi_t);
718e3744 1339
94f2b392 1340extern int peer_maximum_prefix_set (struct peer *, afi_t, safi_t, u_int32_t, u_char, int, u_int16_t);
1341extern int peer_maximum_prefix_unset (struct peer *, afi_t, safi_t);
718e3744 1342
1ff9a340 1343extern int peer_clear (struct peer *, struct listnode **);
94f2b392 1344extern int peer_clear_soft (struct peer *, afi_t, safi_t, enum bgp_clear_type);
93406d87 1345
fa411a21
NH		 1346extern int peer_ttl_security_hops_set (struct peer *, int);
1347extern int peer_ttl_security_hops_unset (struct peer *);
1348
518f0eb1
DS		 1349extern int bgp_route_map_update_timer (struct thread *thread);
1350extern void bgp_route_map_terminate(void);
16286195
DS		 1351
1352extern int peer_cmp (struct peer *p1, struct peer *p2);
3f9c7369
DS		 1353
1354extern struct peer_af * peer_af_create (struct peer *, afi_t, safi_t);
1355extern struct peer_af * peer_af_find (struct peer *, afi_t, safi_t);
1356extern int peer_af_delete (struct peer *, afi_t, safi_t);
1357
ffd0c037
DS		 1358extern void bgp_close(void);
1359
3f9c7369
DS		 1360static inline int
1361afindex (afi_t afi, safi_t safi)
1362{
1363 switch (afi)
1364 {
1365 case AFI_IP:
1366 switch (safi)
1367 {
1368 case SAFI_UNICAST:
1369 return BGP_AF_IPV4_UNICAST;
1370 break;
1371 case SAFI_MULTICAST:
1372 return BGP_AF_IPV4_MULTICAST;
1373 break;
1374 case SAFI_MPLS_VPN:
1375 return BGP_AF_IPV4_VPN;
1376 break;
587ff0fd
LB		 1377 case SAFI_ENCAP:
1378 return BGP_AF_IPV4_ENCAP;
1379 break;
3f9c7369
DS		 1380 default:
1381 return BGP_AF_MAX;
1382 break;
1383 }
1384 break;
1385 case AFI_IP6:
1386 switch (safi)
1387 {
1388 case SAFI_UNICAST:
1389 return BGP_AF_IPV6_UNICAST;
1390 break;
1391 case SAFI_MULTICAST:
1392 return BGP_AF_IPV6_MULTICAST;
1393 break;
6407da5a 1394 case SAFI_MPLS_VPN:
1395 return BGP_AF_IPV6_VPN;
1396 break;
587ff0fd
LB		 1397 case SAFI_ENCAP:
1398 return BGP_AF_IPV6_ENCAP;
1399 break;
3f9c7369
DS		 1400 default:
1401 return BGP_AF_MAX;
1402 break;
1403 }
1404 break;
1405 default:
1406 return BGP_AF_MAX;
1407 break;
1408 }
1409}
1410
c8560b44 1411/* If the peer is not a peer-group but is bound to a peer-group return 1 */
3f9c7369
DS		 1412static inline int
1413peer_group_active (struct peer *peer)
1414{
c8560b44 1415 if (!CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP) && peer->group)
3f9c7369
DS		 1416 return 1;
1417 return 0;
1418}
1419
1420/* If peer is negotiated at least one address family return 1. */
1421static inline int
1422peer_afi_active_nego (const struct peer *peer, afi_t afi)
1423{
1424 if (peer->afc_nego[afi][SAFI_UNICAST]
1425 || peer->afc_nego[afi][SAFI_MULTICAST]
587ff0fd
LB		 1426 || peer->afc_nego[afi][SAFI_MPLS_VPN]
1427 || peer->afc_nego[afi][SAFI_ENCAP])
3f9c7369
DS		 1428 return 1;
1429 return 0;
1430}
1431
f14e6fdb
DS		 1432/* If at least one address family activated for group, return 1. */
1433static inline int
1434peer_group_af_configured (struct peer_group *group)
1435{
1436 struct peer *peer = group->conf;
1437
1438 if (peer->afc[AFI_IP][SAFI_UNICAST]
1439 || peer->afc[AFI_IP][SAFI_MULTICAST]
1440 || peer->afc[AFI_IP][SAFI_MPLS_VPN]
587ff0fd 1441 || peer->afc[AFI_IP][SAFI_ENCAP]
f14e6fdb 1442 || peer->afc[AFI_IP6][SAFI_UNICAST]
6407da5a 1443 || peer->afc[AFI_IP6][SAFI_MULTICAST]
587ff0fd
LB		 1444 || peer->afc[AFI_IP6][SAFI_MPLS_VPN]
1445 || peer->afc[AFI_IP6][SAFI_ENCAP])
f14e6fdb
DS		 1446 return 1;
1447 return 0;
1448}
1449
3f9c7369
DS		 1450static inline char *
1451timestamp_string (time_t ts)
1452{
1453#ifdef HAVE_CLOCK_MONOTONIC
1454 time_t tbuf;
1455 tbuf = time(NULL) - (bgp_clock() - ts);
1456 return ctime(&tbuf);
1457#else
1458 return ctime(&ts);
1459#endif /* HAVE_CLOCK_MONOTONIC */
1460}
1461
1462static inline int
1463peer_established (struct peer *peer)
1464{
1465 if (peer->status == Established)
1466 return 1;
1467 return 0;
1468}
1469
f14e6fdb
DS		 1470static inline int
1471peer_dynamic_neighbor (struct peer *peer)
1472{
1473 return (CHECK_FLAG(peer->flags, PEER_FLAG_DYNAMIC_NEIGHBOR)) ? 1 : 0;
1474}
1475
8a92a8a0
DS		 1476/*
1477 * Currently supporting RFC 5549 for AFI_IP/SAFI_UNICAST only.
1478 *
1479 * Note: When other RFC-5549 applicable SAFIs to be supported, that should
1480 * come as an argument to this routine.
1481 */
1482static inline int
1483peer_cap_enhe (struct peer *peer)
1484{
1485 return (CHECK_FLAG(peer->af_cap[AFI_IP][SAFI_UNICAST], PEER_CAP_ENHE_AF_NEGO));
1486}
1487
d1be1f08 1488/* Lookup VRF for BGP instance based on its type. */
1489static inline struct vrf *
1490bgp_vrf_lookup_by_instance_type (struct bgp *bgp)
1491{
1492 struct vrf *vrf;
1493
1494 if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)
5f3d1bdf 1495 vrf = vrf_lookup_by_id (VRF_DEFAULT);
d1be1f08 1496 else if (bgp->inst_type == BGP_INSTANCE_TYPE_VRF)
1497 vrf = vrf_lookup_by_name (bgp->name);
1498 else
1499 vrf = NULL;
1500
1501 return vrf;
1502}
1503
1504/* Link BGP instance to VRF. */
1505static inline void
1506bgp_vrf_link (struct bgp *bgp, struct vrf *vrf)
1507{
1508 bgp->vrf_id = vrf->vrf_id;
59ecefe2 1509 if (vrf->info != (void *)bgp)
1510 {
1511 bgp_lock (bgp);
1512 vrf->info = (void *)bgp;
1513 }
d1be1f08 1514}
1515
1516/* Unlink BGP instance from VRF. */
1517static inline void
1518bgp_vrf_unlink (struct bgp *bgp, struct vrf *vrf)
1519{
59ecefe2 1520 if (vrf->info == (void *)bgp)
1521 {
1522 vrf->info = NULL;
1523 bgp_unlock (bgp);
1524 }
5c81a5f3 1525 bgp->vrf_id = VRF_UNKNOWN;
d1be1f08 1526}
1527
eb117f29 1528extern void bgp_update_redist_vrf_bitmaps (struct bgp*, vrf_id_t);
65efcfce
LB		 1529
1530/* For benefit of rfapi */
1531extern struct peer * peer_new (struct bgp *bgp);
1532
00d252cb 1533#endif /* _QUAGGA_BGPD_H */
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